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dea3101e | 1 | /******************************************************************* |
2 | * This file is part of the Emulex Linux Device Driver for * | |
c44ce173 | 3 | * Fibre Channel Host Bus Adapters. * |
d8e93df1 | 4 | * Copyright (C) 2004-2009 Emulex. All rights reserved. * |
c44ce173 | 5 | * EMULEX and SLI are trademarks of Emulex. * |
dea3101e | 6 | * www.emulex.com * |
c44ce173 | 7 | * Portions Copyright (C) 2004-2005 Christoph Hellwig * |
dea3101e | 8 | * * |
9 | * This program is free software; you can redistribute it and/or * | |
c44ce173 JSEC |
10 | * modify it under the terms of version 2 of the GNU General * |
11 | * Public License as published by the Free Software Foundation. * | |
12 | * This program is distributed in the hope that it will be useful. * | |
13 | * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * | |
14 | * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * | |
15 | * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * | |
16 | * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * | |
17 | * TO BE LEGALLY INVALID. See the GNU General Public License for * | |
18 | * more details, a copy of which can be found in the file COPYING * | |
19 | * included with this package. * | |
dea3101e | 20 | *******************************************************************/ |
21 | ||
dea3101e | 22 | #include <linux/blkdev.h> |
23 | #include <linux/pci.h> | |
24 | #include <linux/interrupt.h> | |
25 | #include <linux/delay.h> | |
5a0e3ad6 | 26 | #include <linux/slab.h> |
dea3101e | 27 | |
91886523 | 28 | #include <scsi/scsi.h> |
dea3101e | 29 | #include <scsi/scsi_cmnd.h> |
30 | #include <scsi/scsi_device.h> | |
31 | #include <scsi/scsi_host.h> | |
f888ba3c | 32 | #include <scsi/scsi_transport_fc.h> |
da0436e9 | 33 | #include <scsi/fc/fc_fs.h> |
0d878419 | 34 | #include <linux/aer.h> |
dea3101e | 35 | |
da0436e9 | 36 | #include "lpfc_hw4.h" |
dea3101e | 37 | #include "lpfc_hw.h" |
38 | #include "lpfc_sli.h" | |
da0436e9 | 39 | #include "lpfc_sli4.h" |
ea2151b4 | 40 | #include "lpfc_nl.h" |
dea3101e | 41 | #include "lpfc_disc.h" |
42 | #include "lpfc_scsi.h" | |
43 | #include "lpfc.h" | |
44 | #include "lpfc_crtn.h" | |
45 | #include "lpfc_logmsg.h" | |
46 | #include "lpfc_compat.h" | |
858c9f6c | 47 | #include "lpfc_debugfs.h" |
04c68496 | 48 | #include "lpfc_vport.h" |
dea3101e | 49 | |
50 | /* There are only four IOCB completion types. */ | |
51 | typedef enum _lpfc_iocb_type { | |
52 | LPFC_UNKNOWN_IOCB, | |
53 | LPFC_UNSOL_IOCB, | |
54 | LPFC_SOL_IOCB, | |
55 | LPFC_ABORT_IOCB | |
56 | } lpfc_iocb_type; | |
57 | ||
4f774513 JS |
58 | |
59 | /* Provide function prototypes local to this module. */ | |
60 | static int lpfc_sli_issue_mbox_s4(struct lpfc_hba *, LPFC_MBOXQ_t *, | |
61 | uint32_t); | |
62 | static int lpfc_sli4_read_rev(struct lpfc_hba *, LPFC_MBOXQ_t *, | |
45ed1190 JS |
63 | uint8_t *, uint32_t *); |
64 | static struct lpfc_iocbq *lpfc_sli4_els_wcqe_to_rspiocbq(struct lpfc_hba *, | |
65 | struct lpfc_iocbq *); | |
6669f9bb JS |
66 | static void lpfc_sli4_send_seq_to_ulp(struct lpfc_vport *, |
67 | struct hbq_dmabuf *); | |
4f774513 JS |
68 | static IOCB_t * |
69 | lpfc_get_iocb_from_iocbq(struct lpfc_iocbq *iocbq) | |
70 | { | |
71 | return &iocbq->iocb; | |
72 | } | |
73 | ||
74 | /** | |
75 | * lpfc_sli4_wq_put - Put a Work Queue Entry on an Work Queue | |
76 | * @q: The Work Queue to operate on. | |
77 | * @wqe: The work Queue Entry to put on the Work queue. | |
78 | * | |
79 | * This routine will copy the contents of @wqe to the next available entry on | |
80 | * the @q. This function will then ring the Work Queue Doorbell to signal the | |
81 | * HBA to start processing the Work Queue Entry. This function returns 0 if | |
82 | * successful. If no entries are available on @q then this function will return | |
83 | * -ENOMEM. | |
84 | * The caller is expected to hold the hbalock when calling this routine. | |
85 | **/ | |
86 | static uint32_t | |
87 | lpfc_sli4_wq_put(struct lpfc_queue *q, union lpfc_wqe *wqe) | |
88 | { | |
89 | union lpfc_wqe *temp_wqe = q->qe[q->host_index].wqe; | |
90 | struct lpfc_register doorbell; | |
91 | uint32_t host_index; | |
92 | ||
93 | /* If the host has not yet processed the next entry then we are done */ | |
94 | if (((q->host_index + 1) % q->entry_count) == q->hba_index) | |
95 | return -ENOMEM; | |
96 | /* set consumption flag every once in a while */ | |
97 | if (!((q->host_index + 1) % LPFC_RELEASE_NOTIFICATION_INTERVAL)) | |
98 | bf_set(lpfc_wqe_gen_wqec, &wqe->generic, 1); | |
99 | ||
100 | lpfc_sli_pcimem_bcopy(wqe, temp_wqe, q->entry_size); | |
101 | ||
102 | /* Update the host index before invoking device */ | |
103 | host_index = q->host_index; | |
104 | q->host_index = ((q->host_index + 1) % q->entry_count); | |
105 | ||
106 | /* Ring Doorbell */ | |
107 | doorbell.word0 = 0; | |
108 | bf_set(lpfc_wq_doorbell_num_posted, &doorbell, 1); | |
109 | bf_set(lpfc_wq_doorbell_index, &doorbell, host_index); | |
110 | bf_set(lpfc_wq_doorbell_id, &doorbell, q->queue_id); | |
111 | writel(doorbell.word0, q->phba->sli4_hba.WQDBregaddr); | |
112 | readl(q->phba->sli4_hba.WQDBregaddr); /* Flush */ | |
113 | ||
114 | return 0; | |
115 | } | |
116 | ||
117 | /** | |
118 | * lpfc_sli4_wq_release - Updates internal hba index for WQ | |
119 | * @q: The Work Queue to operate on. | |
120 | * @index: The index to advance the hba index to. | |
121 | * | |
122 | * This routine will update the HBA index of a queue to reflect consumption of | |
123 | * Work Queue Entries by the HBA. When the HBA indicates that it has consumed | |
124 | * an entry the host calls this function to update the queue's internal | |
125 | * pointers. This routine returns the number of entries that were consumed by | |
126 | * the HBA. | |
127 | **/ | |
128 | static uint32_t | |
129 | lpfc_sli4_wq_release(struct lpfc_queue *q, uint32_t index) | |
130 | { | |
131 | uint32_t released = 0; | |
132 | ||
133 | if (q->hba_index == index) | |
134 | return 0; | |
135 | do { | |
136 | q->hba_index = ((q->hba_index + 1) % q->entry_count); | |
137 | released++; | |
138 | } while (q->hba_index != index); | |
139 | return released; | |
140 | } | |
141 | ||
142 | /** | |
143 | * lpfc_sli4_mq_put - Put a Mailbox Queue Entry on an Mailbox Queue | |
144 | * @q: The Mailbox Queue to operate on. | |
145 | * @wqe: The Mailbox Queue Entry to put on the Work queue. | |
146 | * | |
147 | * This routine will copy the contents of @mqe to the next available entry on | |
148 | * the @q. This function will then ring the Work Queue Doorbell to signal the | |
149 | * HBA to start processing the Work Queue Entry. This function returns 0 if | |
150 | * successful. If no entries are available on @q then this function will return | |
151 | * -ENOMEM. | |
152 | * The caller is expected to hold the hbalock when calling this routine. | |
153 | **/ | |
154 | static uint32_t | |
155 | lpfc_sli4_mq_put(struct lpfc_queue *q, struct lpfc_mqe *mqe) | |
156 | { | |
157 | struct lpfc_mqe *temp_mqe = q->qe[q->host_index].mqe; | |
158 | struct lpfc_register doorbell; | |
159 | uint32_t host_index; | |
160 | ||
161 | /* If the host has not yet processed the next entry then we are done */ | |
162 | if (((q->host_index + 1) % q->entry_count) == q->hba_index) | |
163 | return -ENOMEM; | |
164 | lpfc_sli_pcimem_bcopy(mqe, temp_mqe, q->entry_size); | |
165 | /* Save off the mailbox pointer for completion */ | |
166 | q->phba->mbox = (MAILBOX_t *)temp_mqe; | |
167 | ||
168 | /* Update the host index before invoking device */ | |
169 | host_index = q->host_index; | |
170 | q->host_index = ((q->host_index + 1) % q->entry_count); | |
171 | ||
172 | /* Ring Doorbell */ | |
173 | doorbell.word0 = 0; | |
174 | bf_set(lpfc_mq_doorbell_num_posted, &doorbell, 1); | |
175 | bf_set(lpfc_mq_doorbell_id, &doorbell, q->queue_id); | |
176 | writel(doorbell.word0, q->phba->sli4_hba.MQDBregaddr); | |
177 | readl(q->phba->sli4_hba.MQDBregaddr); /* Flush */ | |
178 | return 0; | |
179 | } | |
180 | ||
181 | /** | |
182 | * lpfc_sli4_mq_release - Updates internal hba index for MQ | |
183 | * @q: The Mailbox Queue to operate on. | |
184 | * | |
185 | * This routine will update the HBA index of a queue to reflect consumption of | |
186 | * a Mailbox Queue Entry by the HBA. When the HBA indicates that it has consumed | |
187 | * an entry the host calls this function to update the queue's internal | |
188 | * pointers. This routine returns the number of entries that were consumed by | |
189 | * the HBA. | |
190 | **/ | |
191 | static uint32_t | |
192 | lpfc_sli4_mq_release(struct lpfc_queue *q) | |
193 | { | |
194 | /* Clear the mailbox pointer for completion */ | |
195 | q->phba->mbox = NULL; | |
196 | q->hba_index = ((q->hba_index + 1) % q->entry_count); | |
197 | return 1; | |
198 | } | |
199 | ||
200 | /** | |
201 | * lpfc_sli4_eq_get - Gets the next valid EQE from a EQ | |
202 | * @q: The Event Queue to get the first valid EQE from | |
203 | * | |
204 | * This routine will get the first valid Event Queue Entry from @q, update | |
205 | * the queue's internal hba index, and return the EQE. If no valid EQEs are in | |
206 | * the Queue (no more work to do), or the Queue is full of EQEs that have been | |
207 | * processed, but not popped back to the HBA then this routine will return NULL. | |
208 | **/ | |
209 | static struct lpfc_eqe * | |
210 | lpfc_sli4_eq_get(struct lpfc_queue *q) | |
211 | { | |
212 | struct lpfc_eqe *eqe = q->qe[q->hba_index].eqe; | |
213 | ||
214 | /* If the next EQE is not valid then we are done */ | |
cb5172ea | 215 | if (!bf_get_le32(lpfc_eqe_valid, eqe)) |
4f774513 JS |
216 | return NULL; |
217 | /* If the host has not yet processed the next entry then we are done */ | |
218 | if (((q->hba_index + 1) % q->entry_count) == q->host_index) | |
219 | return NULL; | |
220 | ||
221 | q->hba_index = ((q->hba_index + 1) % q->entry_count); | |
222 | return eqe; | |
223 | } | |
224 | ||
225 | /** | |
226 | * lpfc_sli4_eq_release - Indicates the host has finished processing an EQ | |
227 | * @q: The Event Queue that the host has completed processing for. | |
228 | * @arm: Indicates whether the host wants to arms this CQ. | |
229 | * | |
230 | * This routine will mark all Event Queue Entries on @q, from the last | |
231 | * known completed entry to the last entry that was processed, as completed | |
232 | * by clearing the valid bit for each completion queue entry. Then it will | |
233 | * notify the HBA, by ringing the doorbell, that the EQEs have been processed. | |
234 | * The internal host index in the @q will be updated by this routine to indicate | |
235 | * that the host has finished processing the entries. The @arm parameter | |
236 | * indicates that the queue should be rearmed when ringing the doorbell. | |
237 | * | |
238 | * This function will return the number of EQEs that were popped. | |
239 | **/ | |
240 | uint32_t | |
241 | lpfc_sli4_eq_release(struct lpfc_queue *q, bool arm) | |
242 | { | |
243 | uint32_t released = 0; | |
244 | struct lpfc_eqe *temp_eqe; | |
245 | struct lpfc_register doorbell; | |
246 | ||
247 | /* while there are valid entries */ | |
248 | while (q->hba_index != q->host_index) { | |
249 | temp_eqe = q->qe[q->host_index].eqe; | |
cb5172ea | 250 | bf_set_le32(lpfc_eqe_valid, temp_eqe, 0); |
4f774513 JS |
251 | released++; |
252 | q->host_index = ((q->host_index + 1) % q->entry_count); | |
253 | } | |
254 | if (unlikely(released == 0 && !arm)) | |
255 | return 0; | |
256 | ||
257 | /* ring doorbell for number popped */ | |
258 | doorbell.word0 = 0; | |
259 | if (arm) { | |
260 | bf_set(lpfc_eqcq_doorbell_arm, &doorbell, 1); | |
261 | bf_set(lpfc_eqcq_doorbell_eqci, &doorbell, 1); | |
262 | } | |
263 | bf_set(lpfc_eqcq_doorbell_num_released, &doorbell, released); | |
264 | bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_EVENT); | |
265 | bf_set(lpfc_eqcq_doorbell_eqid, &doorbell, q->queue_id); | |
266 | writel(doorbell.word0, q->phba->sli4_hba.EQCQDBregaddr); | |
a747c9ce JS |
267 | /* PCI read to flush PCI pipeline on re-arming for INTx mode */ |
268 | if ((q->phba->intr_type == INTx) && (arm == LPFC_QUEUE_REARM)) | |
269 | readl(q->phba->sli4_hba.EQCQDBregaddr); | |
4f774513 JS |
270 | return released; |
271 | } | |
272 | ||
273 | /** | |
274 | * lpfc_sli4_cq_get - Gets the next valid CQE from a CQ | |
275 | * @q: The Completion Queue to get the first valid CQE from | |
276 | * | |
277 | * This routine will get the first valid Completion Queue Entry from @q, update | |
278 | * the queue's internal hba index, and return the CQE. If no valid CQEs are in | |
279 | * the Queue (no more work to do), or the Queue is full of CQEs that have been | |
280 | * processed, but not popped back to the HBA then this routine will return NULL. | |
281 | **/ | |
282 | static struct lpfc_cqe * | |
283 | lpfc_sli4_cq_get(struct lpfc_queue *q) | |
284 | { | |
285 | struct lpfc_cqe *cqe; | |
286 | ||
287 | /* If the next CQE is not valid then we are done */ | |
cb5172ea | 288 | if (!bf_get_le32(lpfc_cqe_valid, q->qe[q->hba_index].cqe)) |
4f774513 JS |
289 | return NULL; |
290 | /* If the host has not yet processed the next entry then we are done */ | |
291 | if (((q->hba_index + 1) % q->entry_count) == q->host_index) | |
292 | return NULL; | |
293 | ||
294 | cqe = q->qe[q->hba_index].cqe; | |
295 | q->hba_index = ((q->hba_index + 1) % q->entry_count); | |
296 | return cqe; | |
297 | } | |
298 | ||
299 | /** | |
300 | * lpfc_sli4_cq_release - Indicates the host has finished processing a CQ | |
301 | * @q: The Completion Queue that the host has completed processing for. | |
302 | * @arm: Indicates whether the host wants to arms this CQ. | |
303 | * | |
304 | * This routine will mark all Completion queue entries on @q, from the last | |
305 | * known completed entry to the last entry that was processed, as completed | |
306 | * by clearing the valid bit for each completion queue entry. Then it will | |
307 | * notify the HBA, by ringing the doorbell, that the CQEs have been processed. | |
308 | * The internal host index in the @q will be updated by this routine to indicate | |
309 | * that the host has finished processing the entries. The @arm parameter | |
310 | * indicates that the queue should be rearmed when ringing the doorbell. | |
311 | * | |
312 | * This function will return the number of CQEs that were released. | |
313 | **/ | |
314 | uint32_t | |
315 | lpfc_sli4_cq_release(struct lpfc_queue *q, bool arm) | |
316 | { | |
317 | uint32_t released = 0; | |
318 | struct lpfc_cqe *temp_qe; | |
319 | struct lpfc_register doorbell; | |
320 | ||
321 | /* while there are valid entries */ | |
322 | while (q->hba_index != q->host_index) { | |
323 | temp_qe = q->qe[q->host_index].cqe; | |
cb5172ea | 324 | bf_set_le32(lpfc_cqe_valid, temp_qe, 0); |
4f774513 JS |
325 | released++; |
326 | q->host_index = ((q->host_index + 1) % q->entry_count); | |
327 | } | |
328 | if (unlikely(released == 0 && !arm)) | |
329 | return 0; | |
330 | ||
331 | /* ring doorbell for number popped */ | |
332 | doorbell.word0 = 0; | |
333 | if (arm) | |
334 | bf_set(lpfc_eqcq_doorbell_arm, &doorbell, 1); | |
335 | bf_set(lpfc_eqcq_doorbell_num_released, &doorbell, released); | |
336 | bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_COMPLETION); | |
337 | bf_set(lpfc_eqcq_doorbell_cqid, &doorbell, q->queue_id); | |
338 | writel(doorbell.word0, q->phba->sli4_hba.EQCQDBregaddr); | |
339 | return released; | |
340 | } | |
341 | ||
342 | /** | |
343 | * lpfc_sli4_rq_put - Put a Receive Buffer Queue Entry on a Receive Queue | |
344 | * @q: The Header Receive Queue to operate on. | |
345 | * @wqe: The Receive Queue Entry to put on the Receive queue. | |
346 | * | |
347 | * This routine will copy the contents of @wqe to the next available entry on | |
348 | * the @q. This function will then ring the Receive Queue Doorbell to signal the | |
349 | * HBA to start processing the Receive Queue Entry. This function returns the | |
350 | * index that the rqe was copied to if successful. If no entries are available | |
351 | * on @q then this function will return -ENOMEM. | |
352 | * The caller is expected to hold the hbalock when calling this routine. | |
353 | **/ | |
354 | static int | |
355 | lpfc_sli4_rq_put(struct lpfc_queue *hq, struct lpfc_queue *dq, | |
356 | struct lpfc_rqe *hrqe, struct lpfc_rqe *drqe) | |
357 | { | |
358 | struct lpfc_rqe *temp_hrqe = hq->qe[hq->host_index].rqe; | |
359 | struct lpfc_rqe *temp_drqe = dq->qe[dq->host_index].rqe; | |
360 | struct lpfc_register doorbell; | |
361 | int put_index = hq->host_index; | |
362 | ||
363 | if (hq->type != LPFC_HRQ || dq->type != LPFC_DRQ) | |
364 | return -EINVAL; | |
365 | if (hq->host_index != dq->host_index) | |
366 | return -EINVAL; | |
367 | /* If the host has not yet processed the next entry then we are done */ | |
368 | if (((hq->host_index + 1) % hq->entry_count) == hq->hba_index) | |
369 | return -EBUSY; | |
370 | lpfc_sli_pcimem_bcopy(hrqe, temp_hrqe, hq->entry_size); | |
371 | lpfc_sli_pcimem_bcopy(drqe, temp_drqe, dq->entry_size); | |
372 | ||
373 | /* Update the host index to point to the next slot */ | |
374 | hq->host_index = ((hq->host_index + 1) % hq->entry_count); | |
375 | dq->host_index = ((dq->host_index + 1) % dq->entry_count); | |
376 | ||
377 | /* Ring The Header Receive Queue Doorbell */ | |
378 | if (!(hq->host_index % LPFC_RQ_POST_BATCH)) { | |
379 | doorbell.word0 = 0; | |
380 | bf_set(lpfc_rq_doorbell_num_posted, &doorbell, | |
381 | LPFC_RQ_POST_BATCH); | |
382 | bf_set(lpfc_rq_doorbell_id, &doorbell, hq->queue_id); | |
383 | writel(doorbell.word0, hq->phba->sli4_hba.RQDBregaddr); | |
384 | } | |
385 | return put_index; | |
386 | } | |
387 | ||
388 | /** | |
389 | * lpfc_sli4_rq_release - Updates internal hba index for RQ | |
390 | * @q: The Header Receive Queue to operate on. | |
391 | * | |
392 | * This routine will update the HBA index of a queue to reflect consumption of | |
393 | * one Receive Queue Entry by the HBA. When the HBA indicates that it has | |
394 | * consumed an entry the host calls this function to update the queue's | |
395 | * internal pointers. This routine returns the number of entries that were | |
396 | * consumed by the HBA. | |
397 | **/ | |
398 | static uint32_t | |
399 | lpfc_sli4_rq_release(struct lpfc_queue *hq, struct lpfc_queue *dq) | |
400 | { | |
401 | if ((hq->type != LPFC_HRQ) || (dq->type != LPFC_DRQ)) | |
402 | return 0; | |
403 | hq->hba_index = ((hq->hba_index + 1) % hq->entry_count); | |
404 | dq->hba_index = ((dq->hba_index + 1) % dq->entry_count); | |
405 | return 1; | |
406 | } | |
407 | ||
e59058c4 | 408 | /** |
3621a710 | 409 | * lpfc_cmd_iocb - Get next command iocb entry in the ring |
e59058c4 JS |
410 | * @phba: Pointer to HBA context object. |
411 | * @pring: Pointer to driver SLI ring object. | |
412 | * | |
413 | * This function returns pointer to next command iocb entry | |
414 | * in the command ring. The caller must hold hbalock to prevent | |
415 | * other threads consume the next command iocb. | |
416 | * SLI-2/SLI-3 provide different sized iocbs. | |
417 | **/ | |
ed957684 JS |
418 | static inline IOCB_t * |
419 | lpfc_cmd_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) | |
420 | { | |
421 | return (IOCB_t *) (((char *) pring->cmdringaddr) + | |
422 | pring->cmdidx * phba->iocb_cmd_size); | |
423 | } | |
424 | ||
e59058c4 | 425 | /** |
3621a710 | 426 | * lpfc_resp_iocb - Get next response iocb entry in the ring |
e59058c4 JS |
427 | * @phba: Pointer to HBA context object. |
428 | * @pring: Pointer to driver SLI ring object. | |
429 | * | |
430 | * This function returns pointer to next response iocb entry | |
431 | * in the response ring. The caller must hold hbalock to make sure | |
432 | * that no other thread consume the next response iocb. | |
433 | * SLI-2/SLI-3 provide different sized iocbs. | |
434 | **/ | |
ed957684 JS |
435 | static inline IOCB_t * |
436 | lpfc_resp_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) | |
437 | { | |
438 | return (IOCB_t *) (((char *) pring->rspringaddr) + | |
439 | pring->rspidx * phba->iocb_rsp_size); | |
440 | } | |
441 | ||
e59058c4 | 442 | /** |
3621a710 | 443 | * __lpfc_sli_get_iocbq - Allocates an iocb object from iocb pool |
e59058c4 JS |
444 | * @phba: Pointer to HBA context object. |
445 | * | |
446 | * This function is called with hbalock held. This function | |
447 | * allocates a new driver iocb object from the iocb pool. If the | |
448 | * allocation is successful, it returns pointer to the newly | |
449 | * allocated iocb object else it returns NULL. | |
450 | **/ | |
2e0fef85 JS |
451 | static struct lpfc_iocbq * |
452 | __lpfc_sli_get_iocbq(struct lpfc_hba *phba) | |
0bd4ca25 JSEC |
453 | { |
454 | struct list_head *lpfc_iocb_list = &phba->lpfc_iocb_list; | |
455 | struct lpfc_iocbq * iocbq = NULL; | |
456 | ||
457 | list_remove_head(lpfc_iocb_list, iocbq, struct lpfc_iocbq, list); | |
2a9bf3d0 JS |
458 | |
459 | if (iocbq) | |
460 | phba->iocb_cnt++; | |
461 | if (phba->iocb_cnt > phba->iocb_max) | |
462 | phba->iocb_max = phba->iocb_cnt; | |
0bd4ca25 JSEC |
463 | return iocbq; |
464 | } | |
465 | ||
da0436e9 JS |
466 | /** |
467 | * __lpfc_clear_active_sglq - Remove the active sglq for this XRI. | |
468 | * @phba: Pointer to HBA context object. | |
469 | * @xritag: XRI value. | |
470 | * | |
471 | * This function clears the sglq pointer from the array of acive | |
472 | * sglq's. The xritag that is passed in is used to index into the | |
473 | * array. Before the xritag can be used it needs to be adjusted | |
474 | * by subtracting the xribase. | |
475 | * | |
476 | * Returns sglq ponter = success, NULL = Failure. | |
477 | **/ | |
478 | static struct lpfc_sglq * | |
479 | __lpfc_clear_active_sglq(struct lpfc_hba *phba, uint16_t xritag) | |
480 | { | |
481 | uint16_t adj_xri; | |
482 | struct lpfc_sglq *sglq; | |
483 | adj_xri = xritag - phba->sli4_hba.max_cfg_param.xri_base; | |
484 | if (adj_xri > phba->sli4_hba.max_cfg_param.max_xri) | |
485 | return NULL; | |
486 | sglq = phba->sli4_hba.lpfc_sglq_active_list[adj_xri]; | |
487 | phba->sli4_hba.lpfc_sglq_active_list[adj_xri] = NULL; | |
488 | return sglq; | |
489 | } | |
490 | ||
491 | /** | |
492 | * __lpfc_get_active_sglq - Get the active sglq for this XRI. | |
493 | * @phba: Pointer to HBA context object. | |
494 | * @xritag: XRI value. | |
495 | * | |
496 | * This function returns the sglq pointer from the array of acive | |
497 | * sglq's. The xritag that is passed in is used to index into the | |
498 | * array. Before the xritag can be used it needs to be adjusted | |
499 | * by subtracting the xribase. | |
500 | * | |
501 | * Returns sglq ponter = success, NULL = Failure. | |
502 | **/ | |
0f65ff68 | 503 | struct lpfc_sglq * |
da0436e9 JS |
504 | __lpfc_get_active_sglq(struct lpfc_hba *phba, uint16_t xritag) |
505 | { | |
506 | uint16_t adj_xri; | |
507 | struct lpfc_sglq *sglq; | |
508 | adj_xri = xritag - phba->sli4_hba.max_cfg_param.xri_base; | |
509 | if (adj_xri > phba->sli4_hba.max_cfg_param.max_xri) | |
510 | return NULL; | |
511 | sglq = phba->sli4_hba.lpfc_sglq_active_list[adj_xri]; | |
512 | return sglq; | |
513 | } | |
514 | ||
515 | /** | |
516 | * __lpfc_sli_get_sglq - Allocates an iocb object from sgl pool | |
517 | * @phba: Pointer to HBA context object. | |
518 | * | |
519 | * This function is called with hbalock held. This function | |
520 | * Gets a new driver sglq object from the sglq list. If the | |
521 | * list is not empty then it is successful, it returns pointer to the newly | |
522 | * allocated sglq object else it returns NULL. | |
523 | **/ | |
524 | static struct lpfc_sglq * | |
525 | __lpfc_sli_get_sglq(struct lpfc_hba *phba) | |
526 | { | |
527 | struct list_head *lpfc_sgl_list = &phba->sli4_hba.lpfc_sgl_list; | |
528 | struct lpfc_sglq *sglq = NULL; | |
529 | uint16_t adj_xri; | |
530 | list_remove_head(lpfc_sgl_list, sglq, struct lpfc_sglq, list); | |
6a9c52cf JS |
531 | if (!sglq) |
532 | return NULL; | |
da0436e9 JS |
533 | adj_xri = sglq->sli4_xritag - phba->sli4_hba.max_cfg_param.xri_base; |
534 | phba->sli4_hba.lpfc_sglq_active_list[adj_xri] = sglq; | |
0f65ff68 | 535 | sglq->state = SGL_ALLOCATED; |
da0436e9 JS |
536 | return sglq; |
537 | } | |
538 | ||
e59058c4 | 539 | /** |
3621a710 | 540 | * lpfc_sli_get_iocbq - Allocates an iocb object from iocb pool |
e59058c4 JS |
541 | * @phba: Pointer to HBA context object. |
542 | * | |
543 | * This function is called with no lock held. This function | |
544 | * allocates a new driver iocb object from the iocb pool. If the | |
545 | * allocation is successful, it returns pointer to the newly | |
546 | * allocated iocb object else it returns NULL. | |
547 | **/ | |
2e0fef85 JS |
548 | struct lpfc_iocbq * |
549 | lpfc_sli_get_iocbq(struct lpfc_hba *phba) | |
550 | { | |
551 | struct lpfc_iocbq * iocbq = NULL; | |
552 | unsigned long iflags; | |
553 | ||
554 | spin_lock_irqsave(&phba->hbalock, iflags); | |
555 | iocbq = __lpfc_sli_get_iocbq(phba); | |
556 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
557 | return iocbq; | |
558 | } | |
559 | ||
4f774513 JS |
560 | /** |
561 | * __lpfc_sli_release_iocbq_s4 - Release iocb to the iocb pool | |
562 | * @phba: Pointer to HBA context object. | |
563 | * @iocbq: Pointer to driver iocb object. | |
564 | * | |
565 | * This function is called with hbalock held to release driver | |
566 | * iocb object to the iocb pool. The iotag in the iocb object | |
567 | * does not change for each use of the iocb object. This function | |
568 | * clears all other fields of the iocb object when it is freed. | |
569 | * The sqlq structure that holds the xritag and phys and virtual | |
570 | * mappings for the scatter gather list is retrieved from the | |
571 | * active array of sglq. The get of the sglq pointer also clears | |
572 | * the entry in the array. If the status of the IO indiactes that | |
573 | * this IO was aborted then the sglq entry it put on the | |
574 | * lpfc_abts_els_sgl_list until the CQ_ABORTED_XRI is received. If the | |
575 | * IO has good status or fails for any other reason then the sglq | |
576 | * entry is added to the free list (lpfc_sgl_list). | |
577 | **/ | |
578 | static void | |
579 | __lpfc_sli_release_iocbq_s4(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq) | |
580 | { | |
581 | struct lpfc_sglq *sglq; | |
582 | size_t start_clean = offsetof(struct lpfc_iocbq, iocb); | |
2a9bf3d0 JS |
583 | unsigned long iflag = 0; |
584 | struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING]; | |
4f774513 JS |
585 | |
586 | if (iocbq->sli4_xritag == NO_XRI) | |
587 | sglq = NULL; | |
588 | else | |
589 | sglq = __lpfc_clear_active_sglq(phba, iocbq->sli4_xritag); | |
590 | if (sglq) { | |
0f65ff68 JS |
591 | if ((iocbq->iocb_flag & LPFC_EXCHANGE_BUSY) && |
592 | (sglq->state != SGL_XRI_ABORTED)) { | |
4f774513 JS |
593 | spin_lock_irqsave(&phba->sli4_hba.abts_sgl_list_lock, |
594 | iflag); | |
595 | list_add(&sglq->list, | |
596 | &phba->sli4_hba.lpfc_abts_els_sgl_list); | |
597 | spin_unlock_irqrestore( | |
598 | &phba->sli4_hba.abts_sgl_list_lock, iflag); | |
0f65ff68 JS |
599 | } else { |
600 | sglq->state = SGL_FREED; | |
4f774513 | 601 | list_add(&sglq->list, &phba->sli4_hba.lpfc_sgl_list); |
2a9bf3d0 JS |
602 | |
603 | /* Check if TXQ queue needs to be serviced */ | |
589a52d6 | 604 | if (pring->txq_cnt) |
2a9bf3d0 | 605 | lpfc_worker_wake_up(phba); |
0f65ff68 | 606 | } |
4f774513 JS |
607 | } |
608 | ||
609 | ||
610 | /* | |
611 | * Clean all volatile data fields, preserve iotag and node struct. | |
612 | */ | |
613 | memset((char *)iocbq + start_clean, 0, sizeof(*iocbq) - start_clean); | |
614 | iocbq->sli4_xritag = NO_XRI; | |
615 | list_add_tail(&iocbq->list, &phba->lpfc_iocb_list); | |
616 | } | |
617 | ||
2a9bf3d0 | 618 | |
e59058c4 | 619 | /** |
3772a991 | 620 | * __lpfc_sli_release_iocbq_s3 - Release iocb to the iocb pool |
e59058c4 JS |
621 | * @phba: Pointer to HBA context object. |
622 | * @iocbq: Pointer to driver iocb object. | |
623 | * | |
624 | * This function is called with hbalock held to release driver | |
625 | * iocb object to the iocb pool. The iotag in the iocb object | |
626 | * does not change for each use of the iocb object. This function | |
627 | * clears all other fields of the iocb object when it is freed. | |
628 | **/ | |
a6ababd2 | 629 | static void |
3772a991 | 630 | __lpfc_sli_release_iocbq_s3(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq) |
604a3e30 | 631 | { |
2e0fef85 | 632 | size_t start_clean = offsetof(struct lpfc_iocbq, iocb); |
604a3e30 JB |
633 | |
634 | /* | |
635 | * Clean all volatile data fields, preserve iotag and node struct. | |
636 | */ | |
637 | memset((char*)iocbq + start_clean, 0, sizeof(*iocbq) - start_clean); | |
3772a991 | 638 | iocbq->sli4_xritag = NO_XRI; |
604a3e30 JB |
639 | list_add_tail(&iocbq->list, &phba->lpfc_iocb_list); |
640 | } | |
641 | ||
3772a991 JS |
642 | /** |
643 | * __lpfc_sli_release_iocbq - Release iocb to the iocb pool | |
644 | * @phba: Pointer to HBA context object. | |
645 | * @iocbq: Pointer to driver iocb object. | |
646 | * | |
647 | * This function is called with hbalock held to release driver | |
648 | * iocb object to the iocb pool. The iotag in the iocb object | |
649 | * does not change for each use of the iocb object. This function | |
650 | * clears all other fields of the iocb object when it is freed. | |
651 | **/ | |
652 | static void | |
653 | __lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq) | |
654 | { | |
655 | phba->__lpfc_sli_release_iocbq(phba, iocbq); | |
2a9bf3d0 | 656 | phba->iocb_cnt--; |
3772a991 JS |
657 | } |
658 | ||
e59058c4 | 659 | /** |
3621a710 | 660 | * lpfc_sli_release_iocbq - Release iocb to the iocb pool |
e59058c4 JS |
661 | * @phba: Pointer to HBA context object. |
662 | * @iocbq: Pointer to driver iocb object. | |
663 | * | |
664 | * This function is called with no lock held to release the iocb to | |
665 | * iocb pool. | |
666 | **/ | |
2e0fef85 JS |
667 | void |
668 | lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq) | |
669 | { | |
670 | unsigned long iflags; | |
671 | ||
672 | /* | |
673 | * Clean all volatile data fields, preserve iotag and node struct. | |
674 | */ | |
675 | spin_lock_irqsave(&phba->hbalock, iflags); | |
676 | __lpfc_sli_release_iocbq(phba, iocbq); | |
677 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
678 | } | |
679 | ||
a257bf90 JS |
680 | /** |
681 | * lpfc_sli_cancel_iocbs - Cancel all iocbs from a list. | |
682 | * @phba: Pointer to HBA context object. | |
683 | * @iocblist: List of IOCBs. | |
684 | * @ulpstatus: ULP status in IOCB command field. | |
685 | * @ulpWord4: ULP word-4 in IOCB command field. | |
686 | * | |
687 | * This function is called with a list of IOCBs to cancel. It cancels the IOCB | |
688 | * on the list by invoking the complete callback function associated with the | |
689 | * IOCB with the provided @ulpstatus and @ulpword4 set to the IOCB commond | |
690 | * fields. | |
691 | **/ | |
692 | void | |
693 | lpfc_sli_cancel_iocbs(struct lpfc_hba *phba, struct list_head *iocblist, | |
694 | uint32_t ulpstatus, uint32_t ulpWord4) | |
695 | { | |
696 | struct lpfc_iocbq *piocb; | |
697 | ||
698 | while (!list_empty(iocblist)) { | |
699 | list_remove_head(iocblist, piocb, struct lpfc_iocbq, list); | |
700 | ||
701 | if (!piocb->iocb_cmpl) | |
702 | lpfc_sli_release_iocbq(phba, piocb); | |
703 | else { | |
704 | piocb->iocb.ulpStatus = ulpstatus; | |
705 | piocb->iocb.un.ulpWord[4] = ulpWord4; | |
706 | (piocb->iocb_cmpl) (phba, piocb, piocb); | |
707 | } | |
708 | } | |
709 | return; | |
710 | } | |
711 | ||
e59058c4 | 712 | /** |
3621a710 JS |
713 | * lpfc_sli_iocb_cmd_type - Get the iocb type |
714 | * @iocb_cmnd: iocb command code. | |
e59058c4 JS |
715 | * |
716 | * This function is called by ring event handler function to get the iocb type. | |
717 | * This function translates the iocb command to an iocb command type used to | |
718 | * decide the final disposition of each completed IOCB. | |
719 | * The function returns | |
720 | * LPFC_UNKNOWN_IOCB if it is an unsupported iocb | |
721 | * LPFC_SOL_IOCB if it is a solicited iocb completion | |
722 | * LPFC_ABORT_IOCB if it is an abort iocb | |
723 | * LPFC_UNSOL_IOCB if it is an unsolicited iocb | |
724 | * | |
725 | * The caller is not required to hold any lock. | |
726 | **/ | |
dea3101e | 727 | static lpfc_iocb_type |
728 | lpfc_sli_iocb_cmd_type(uint8_t iocb_cmnd) | |
729 | { | |
730 | lpfc_iocb_type type = LPFC_UNKNOWN_IOCB; | |
731 | ||
732 | if (iocb_cmnd > CMD_MAX_IOCB_CMD) | |
733 | return 0; | |
734 | ||
735 | switch (iocb_cmnd) { | |
736 | case CMD_XMIT_SEQUENCE_CR: | |
737 | case CMD_XMIT_SEQUENCE_CX: | |
738 | case CMD_XMIT_BCAST_CN: | |
739 | case CMD_XMIT_BCAST_CX: | |
740 | case CMD_ELS_REQUEST_CR: | |
741 | case CMD_ELS_REQUEST_CX: | |
742 | case CMD_CREATE_XRI_CR: | |
743 | case CMD_CREATE_XRI_CX: | |
744 | case CMD_GET_RPI_CN: | |
745 | case CMD_XMIT_ELS_RSP_CX: | |
746 | case CMD_GET_RPI_CR: | |
747 | case CMD_FCP_IWRITE_CR: | |
748 | case CMD_FCP_IWRITE_CX: | |
749 | case CMD_FCP_IREAD_CR: | |
750 | case CMD_FCP_IREAD_CX: | |
751 | case CMD_FCP_ICMND_CR: | |
752 | case CMD_FCP_ICMND_CX: | |
f5603511 JS |
753 | case CMD_FCP_TSEND_CX: |
754 | case CMD_FCP_TRSP_CX: | |
755 | case CMD_FCP_TRECEIVE_CX: | |
756 | case CMD_FCP_AUTO_TRSP_CX: | |
dea3101e | 757 | case CMD_ADAPTER_MSG: |
758 | case CMD_ADAPTER_DUMP: | |
759 | case CMD_XMIT_SEQUENCE64_CR: | |
760 | case CMD_XMIT_SEQUENCE64_CX: | |
761 | case CMD_XMIT_BCAST64_CN: | |
762 | case CMD_XMIT_BCAST64_CX: | |
763 | case CMD_ELS_REQUEST64_CR: | |
764 | case CMD_ELS_REQUEST64_CX: | |
765 | case CMD_FCP_IWRITE64_CR: | |
766 | case CMD_FCP_IWRITE64_CX: | |
767 | case CMD_FCP_IREAD64_CR: | |
768 | case CMD_FCP_IREAD64_CX: | |
769 | case CMD_FCP_ICMND64_CR: | |
770 | case CMD_FCP_ICMND64_CX: | |
f5603511 JS |
771 | case CMD_FCP_TSEND64_CX: |
772 | case CMD_FCP_TRSP64_CX: | |
773 | case CMD_FCP_TRECEIVE64_CX: | |
dea3101e | 774 | case CMD_GEN_REQUEST64_CR: |
775 | case CMD_GEN_REQUEST64_CX: | |
776 | case CMD_XMIT_ELS_RSP64_CX: | |
da0436e9 JS |
777 | case DSSCMD_IWRITE64_CR: |
778 | case DSSCMD_IWRITE64_CX: | |
779 | case DSSCMD_IREAD64_CR: | |
780 | case DSSCMD_IREAD64_CX: | |
dea3101e | 781 | type = LPFC_SOL_IOCB; |
782 | break; | |
783 | case CMD_ABORT_XRI_CN: | |
784 | case CMD_ABORT_XRI_CX: | |
785 | case CMD_CLOSE_XRI_CN: | |
786 | case CMD_CLOSE_XRI_CX: | |
787 | case CMD_XRI_ABORTED_CX: | |
788 | case CMD_ABORT_MXRI64_CN: | |
6669f9bb | 789 | case CMD_XMIT_BLS_RSP64_CX: |
dea3101e | 790 | type = LPFC_ABORT_IOCB; |
791 | break; | |
792 | case CMD_RCV_SEQUENCE_CX: | |
793 | case CMD_RCV_ELS_REQ_CX: | |
794 | case CMD_RCV_SEQUENCE64_CX: | |
795 | case CMD_RCV_ELS_REQ64_CX: | |
57127f15 | 796 | case CMD_ASYNC_STATUS: |
ed957684 JS |
797 | case CMD_IOCB_RCV_SEQ64_CX: |
798 | case CMD_IOCB_RCV_ELS64_CX: | |
799 | case CMD_IOCB_RCV_CONT64_CX: | |
3163f725 | 800 | case CMD_IOCB_RET_XRI64_CX: |
dea3101e | 801 | type = LPFC_UNSOL_IOCB; |
802 | break; | |
3163f725 JS |
803 | case CMD_IOCB_XMIT_MSEQ64_CR: |
804 | case CMD_IOCB_XMIT_MSEQ64_CX: | |
805 | case CMD_IOCB_RCV_SEQ_LIST64_CX: | |
806 | case CMD_IOCB_RCV_ELS_LIST64_CX: | |
807 | case CMD_IOCB_CLOSE_EXTENDED_CN: | |
808 | case CMD_IOCB_ABORT_EXTENDED_CN: | |
809 | case CMD_IOCB_RET_HBQE64_CN: | |
810 | case CMD_IOCB_FCP_IBIDIR64_CR: | |
811 | case CMD_IOCB_FCP_IBIDIR64_CX: | |
812 | case CMD_IOCB_FCP_ITASKMGT64_CX: | |
813 | case CMD_IOCB_LOGENTRY_CN: | |
814 | case CMD_IOCB_LOGENTRY_ASYNC_CN: | |
815 | printk("%s - Unhandled SLI-3 Command x%x\n", | |
cadbd4a5 | 816 | __func__, iocb_cmnd); |
3163f725 JS |
817 | type = LPFC_UNKNOWN_IOCB; |
818 | break; | |
dea3101e | 819 | default: |
820 | type = LPFC_UNKNOWN_IOCB; | |
821 | break; | |
822 | } | |
823 | ||
824 | return type; | |
825 | } | |
826 | ||
e59058c4 | 827 | /** |
3621a710 | 828 | * lpfc_sli_ring_map - Issue config_ring mbox for all rings |
e59058c4 JS |
829 | * @phba: Pointer to HBA context object. |
830 | * | |
831 | * This function is called from SLI initialization code | |
832 | * to configure every ring of the HBA's SLI interface. The | |
833 | * caller is not required to hold any lock. This function issues | |
834 | * a config_ring mailbox command for each ring. | |
835 | * This function returns zero if successful else returns a negative | |
836 | * error code. | |
837 | **/ | |
dea3101e | 838 | static int |
ed957684 | 839 | lpfc_sli_ring_map(struct lpfc_hba *phba) |
dea3101e | 840 | { |
841 | struct lpfc_sli *psli = &phba->sli; | |
ed957684 JS |
842 | LPFC_MBOXQ_t *pmb; |
843 | MAILBOX_t *pmbox; | |
844 | int i, rc, ret = 0; | |
dea3101e | 845 | |
ed957684 JS |
846 | pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
847 | if (!pmb) | |
848 | return -ENOMEM; | |
04c68496 | 849 | pmbox = &pmb->u.mb; |
ed957684 | 850 | phba->link_state = LPFC_INIT_MBX_CMDS; |
dea3101e | 851 | for (i = 0; i < psli->num_rings; i++) { |
dea3101e | 852 | lpfc_config_ring(phba, i, pmb); |
853 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); | |
854 | if (rc != MBX_SUCCESS) { | |
92d7f7b0 | 855 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
e8b62011 | 856 | "0446 Adapter failed to init (%d), " |
dea3101e | 857 | "mbxCmd x%x CFG_RING, mbxStatus x%x, " |
858 | "ring %d\n", | |
e8b62011 JS |
859 | rc, pmbox->mbxCommand, |
860 | pmbox->mbxStatus, i); | |
2e0fef85 | 861 | phba->link_state = LPFC_HBA_ERROR; |
ed957684 JS |
862 | ret = -ENXIO; |
863 | break; | |
dea3101e | 864 | } |
865 | } | |
ed957684 JS |
866 | mempool_free(pmb, phba->mbox_mem_pool); |
867 | return ret; | |
dea3101e | 868 | } |
869 | ||
e59058c4 | 870 | /** |
3621a710 | 871 | * lpfc_sli_ringtxcmpl_put - Adds new iocb to the txcmplq |
e59058c4 JS |
872 | * @phba: Pointer to HBA context object. |
873 | * @pring: Pointer to driver SLI ring object. | |
874 | * @piocb: Pointer to the driver iocb object. | |
875 | * | |
876 | * This function is called with hbalock held. The function adds the | |
877 | * new iocb to txcmplq of the given ring. This function always returns | |
878 | * 0. If this function is called for ELS ring, this function checks if | |
879 | * there is a vport associated with the ELS command. This function also | |
880 | * starts els_tmofunc timer if this is an ELS command. | |
881 | **/ | |
dea3101e | 882 | static int |
2e0fef85 JS |
883 | lpfc_sli_ringtxcmpl_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, |
884 | struct lpfc_iocbq *piocb) | |
dea3101e | 885 | { |
dea3101e | 886 | list_add_tail(&piocb->list, &pring->txcmplq); |
2a9bf3d0 | 887 | piocb->iocb_flag |= LPFC_IO_ON_Q; |
dea3101e | 888 | pring->txcmplq_cnt++; |
2a9bf3d0 JS |
889 | if (pring->txcmplq_cnt > pring->txcmplq_max) |
890 | pring->txcmplq_max = pring->txcmplq_cnt; | |
891 | ||
92d7f7b0 JS |
892 | if ((unlikely(pring->ringno == LPFC_ELS_RING)) && |
893 | (piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) && | |
894 | (piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN)) { | |
895 | if (!piocb->vport) | |
896 | BUG(); | |
897 | else | |
898 | mod_timer(&piocb->vport->els_tmofunc, | |
899 | jiffies + HZ * (phba->fc_ratov << 1)); | |
900 | } | |
901 | ||
dea3101e | 902 | |
2e0fef85 | 903 | return 0; |
dea3101e | 904 | } |
905 | ||
e59058c4 | 906 | /** |
3621a710 | 907 | * lpfc_sli_ringtx_get - Get first element of the txq |
e59058c4 JS |
908 | * @phba: Pointer to HBA context object. |
909 | * @pring: Pointer to driver SLI ring object. | |
910 | * | |
911 | * This function is called with hbalock held to get next | |
912 | * iocb in txq of the given ring. If there is any iocb in | |
913 | * the txq, the function returns first iocb in the list after | |
914 | * removing the iocb from the list, else it returns NULL. | |
915 | **/ | |
2a9bf3d0 | 916 | struct lpfc_iocbq * |
2e0fef85 | 917 | lpfc_sli_ringtx_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) |
dea3101e | 918 | { |
dea3101e | 919 | struct lpfc_iocbq *cmd_iocb; |
920 | ||
858c9f6c JS |
921 | list_remove_head((&pring->txq), cmd_iocb, struct lpfc_iocbq, list); |
922 | if (cmd_iocb != NULL) | |
dea3101e | 923 | pring->txq_cnt--; |
2e0fef85 | 924 | return cmd_iocb; |
dea3101e | 925 | } |
926 | ||
e59058c4 | 927 | /** |
3621a710 | 928 | * lpfc_sli_next_iocb_slot - Get next iocb slot in the ring |
e59058c4 JS |
929 | * @phba: Pointer to HBA context object. |
930 | * @pring: Pointer to driver SLI ring object. | |
931 | * | |
932 | * This function is called with hbalock held and the caller must post the | |
933 | * iocb without releasing the lock. If the caller releases the lock, | |
934 | * iocb slot returned by the function is not guaranteed to be available. | |
935 | * The function returns pointer to the next available iocb slot if there | |
936 | * is available slot in the ring, else it returns NULL. | |
937 | * If the get index of the ring is ahead of the put index, the function | |
938 | * will post an error attention event to the worker thread to take the | |
939 | * HBA to offline state. | |
940 | **/ | |
dea3101e | 941 | static IOCB_t * |
942 | lpfc_sli_next_iocb_slot (struct lpfc_hba *phba, struct lpfc_sli_ring *pring) | |
943 | { | |
34b02dcd | 944 | struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno]; |
dea3101e | 945 | uint32_t max_cmd_idx = pring->numCiocb; |
dea3101e | 946 | if ((pring->next_cmdidx == pring->cmdidx) && |
947 | (++pring->next_cmdidx >= max_cmd_idx)) | |
948 | pring->next_cmdidx = 0; | |
949 | ||
950 | if (unlikely(pring->local_getidx == pring->next_cmdidx)) { | |
951 | ||
952 | pring->local_getidx = le32_to_cpu(pgp->cmdGetInx); | |
953 | ||
954 | if (unlikely(pring->local_getidx >= max_cmd_idx)) { | |
955 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
e8b62011 | 956 | "0315 Ring %d issue: portCmdGet %d " |
025dfdaf | 957 | "is bigger than cmd ring %d\n", |
e8b62011 | 958 | pring->ringno, |
dea3101e | 959 | pring->local_getidx, max_cmd_idx); |
960 | ||
2e0fef85 | 961 | phba->link_state = LPFC_HBA_ERROR; |
dea3101e | 962 | /* |
963 | * All error attention handlers are posted to | |
964 | * worker thread | |
965 | */ | |
966 | phba->work_ha |= HA_ERATT; | |
967 | phba->work_hs = HS_FFER3; | |
92d7f7b0 | 968 | |
5e9d9b82 | 969 | lpfc_worker_wake_up(phba); |
dea3101e | 970 | |
971 | return NULL; | |
972 | } | |
973 | ||
974 | if (pring->local_getidx == pring->next_cmdidx) | |
975 | return NULL; | |
976 | } | |
977 | ||
ed957684 | 978 | return lpfc_cmd_iocb(phba, pring); |
dea3101e | 979 | } |
980 | ||
e59058c4 | 981 | /** |
3621a710 | 982 | * lpfc_sli_next_iotag - Get an iotag for the iocb |
e59058c4 JS |
983 | * @phba: Pointer to HBA context object. |
984 | * @iocbq: Pointer to driver iocb object. | |
985 | * | |
986 | * This function gets an iotag for the iocb. If there is no unused iotag and | |
987 | * the iocbq_lookup_len < 0xffff, this function allocates a bigger iotag_lookup | |
988 | * array and assigns a new iotag. | |
989 | * The function returns the allocated iotag if successful, else returns zero. | |
990 | * Zero is not a valid iotag. | |
991 | * The caller is not required to hold any lock. | |
992 | **/ | |
604a3e30 | 993 | uint16_t |
2e0fef85 | 994 | lpfc_sli_next_iotag(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq) |
dea3101e | 995 | { |
2e0fef85 JS |
996 | struct lpfc_iocbq **new_arr; |
997 | struct lpfc_iocbq **old_arr; | |
604a3e30 JB |
998 | size_t new_len; |
999 | struct lpfc_sli *psli = &phba->sli; | |
1000 | uint16_t iotag; | |
dea3101e | 1001 | |
2e0fef85 | 1002 | spin_lock_irq(&phba->hbalock); |
604a3e30 JB |
1003 | iotag = psli->last_iotag; |
1004 | if(++iotag < psli->iocbq_lookup_len) { | |
1005 | psli->last_iotag = iotag; | |
1006 | psli->iocbq_lookup[iotag] = iocbq; | |
2e0fef85 | 1007 | spin_unlock_irq(&phba->hbalock); |
604a3e30 JB |
1008 | iocbq->iotag = iotag; |
1009 | return iotag; | |
2e0fef85 | 1010 | } else if (psli->iocbq_lookup_len < (0xffff |
604a3e30 JB |
1011 | - LPFC_IOCBQ_LOOKUP_INCREMENT)) { |
1012 | new_len = psli->iocbq_lookup_len + LPFC_IOCBQ_LOOKUP_INCREMENT; | |
2e0fef85 JS |
1013 | spin_unlock_irq(&phba->hbalock); |
1014 | new_arr = kzalloc(new_len * sizeof (struct lpfc_iocbq *), | |
604a3e30 JB |
1015 | GFP_KERNEL); |
1016 | if (new_arr) { | |
2e0fef85 | 1017 | spin_lock_irq(&phba->hbalock); |
604a3e30 JB |
1018 | old_arr = psli->iocbq_lookup; |
1019 | if (new_len <= psli->iocbq_lookup_len) { | |
1020 | /* highly unprobable case */ | |
1021 | kfree(new_arr); | |
1022 | iotag = psli->last_iotag; | |
1023 | if(++iotag < psli->iocbq_lookup_len) { | |
1024 | psli->last_iotag = iotag; | |
1025 | psli->iocbq_lookup[iotag] = iocbq; | |
2e0fef85 | 1026 | spin_unlock_irq(&phba->hbalock); |
604a3e30 JB |
1027 | iocbq->iotag = iotag; |
1028 | return iotag; | |
1029 | } | |
2e0fef85 | 1030 | spin_unlock_irq(&phba->hbalock); |
604a3e30 JB |
1031 | return 0; |
1032 | } | |
1033 | if (psli->iocbq_lookup) | |
1034 | memcpy(new_arr, old_arr, | |
1035 | ((psli->last_iotag + 1) * | |
311464ec | 1036 | sizeof (struct lpfc_iocbq *))); |
604a3e30 JB |
1037 | psli->iocbq_lookup = new_arr; |
1038 | psli->iocbq_lookup_len = new_len; | |
1039 | psli->last_iotag = iotag; | |
1040 | psli->iocbq_lookup[iotag] = iocbq; | |
2e0fef85 | 1041 | spin_unlock_irq(&phba->hbalock); |
604a3e30 JB |
1042 | iocbq->iotag = iotag; |
1043 | kfree(old_arr); | |
1044 | return iotag; | |
1045 | } | |
8f6d98d2 | 1046 | } else |
2e0fef85 | 1047 | spin_unlock_irq(&phba->hbalock); |
dea3101e | 1048 | |
bc73905a | 1049 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, |
e8b62011 JS |
1050 | "0318 Failed to allocate IOTAG.last IOTAG is %d\n", |
1051 | psli->last_iotag); | |
dea3101e | 1052 | |
604a3e30 | 1053 | return 0; |
dea3101e | 1054 | } |
1055 | ||
e59058c4 | 1056 | /** |
3621a710 | 1057 | * lpfc_sli_submit_iocb - Submit an iocb to the firmware |
e59058c4 JS |
1058 | * @phba: Pointer to HBA context object. |
1059 | * @pring: Pointer to driver SLI ring object. | |
1060 | * @iocb: Pointer to iocb slot in the ring. | |
1061 | * @nextiocb: Pointer to driver iocb object which need to be | |
1062 | * posted to firmware. | |
1063 | * | |
1064 | * This function is called with hbalock held to post a new iocb to | |
1065 | * the firmware. This function copies the new iocb to ring iocb slot and | |
1066 | * updates the ring pointers. It adds the new iocb to txcmplq if there is | |
1067 | * a completion call back for this iocb else the function will free the | |
1068 | * iocb object. | |
1069 | **/ | |
dea3101e | 1070 | static void |
1071 | lpfc_sli_submit_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
1072 | IOCB_t *iocb, struct lpfc_iocbq *nextiocb) | |
1073 | { | |
1074 | /* | |
604a3e30 | 1075 | * Set up an iotag |
dea3101e | 1076 | */ |
604a3e30 | 1077 | nextiocb->iocb.ulpIoTag = (nextiocb->iocb_cmpl) ? nextiocb->iotag : 0; |
dea3101e | 1078 | |
e2a0a9d6 | 1079 | |
a58cbd52 JS |
1080 | if (pring->ringno == LPFC_ELS_RING) { |
1081 | lpfc_debugfs_slow_ring_trc(phba, | |
1082 | "IOCB cmd ring: wd4:x%08x wd6:x%08x wd7:x%08x", | |
1083 | *(((uint32_t *) &nextiocb->iocb) + 4), | |
1084 | *(((uint32_t *) &nextiocb->iocb) + 6), | |
1085 | *(((uint32_t *) &nextiocb->iocb) + 7)); | |
1086 | } | |
1087 | ||
dea3101e | 1088 | /* |
1089 | * Issue iocb command to adapter | |
1090 | */ | |
92d7f7b0 | 1091 | lpfc_sli_pcimem_bcopy(&nextiocb->iocb, iocb, phba->iocb_cmd_size); |
dea3101e | 1092 | wmb(); |
1093 | pring->stats.iocb_cmd++; | |
1094 | ||
1095 | /* | |
1096 | * If there is no completion routine to call, we can release the | |
1097 | * IOCB buffer back right now. For IOCBs, like QUE_RING_BUF, | |
1098 | * that have no rsp ring completion, iocb_cmpl MUST be NULL. | |
1099 | */ | |
1100 | if (nextiocb->iocb_cmpl) | |
1101 | lpfc_sli_ringtxcmpl_put(phba, pring, nextiocb); | |
604a3e30 | 1102 | else |
2e0fef85 | 1103 | __lpfc_sli_release_iocbq(phba, nextiocb); |
dea3101e | 1104 | |
1105 | /* | |
1106 | * Let the HBA know what IOCB slot will be the next one the | |
1107 | * driver will put a command into. | |
1108 | */ | |
1109 | pring->cmdidx = pring->next_cmdidx; | |
ed957684 | 1110 | writel(pring->cmdidx, &phba->host_gp[pring->ringno].cmdPutInx); |
dea3101e | 1111 | } |
1112 | ||
e59058c4 | 1113 | /** |
3621a710 | 1114 | * lpfc_sli_update_full_ring - Update the chip attention register |
e59058c4 JS |
1115 | * @phba: Pointer to HBA context object. |
1116 | * @pring: Pointer to driver SLI ring object. | |
1117 | * | |
1118 | * The caller is not required to hold any lock for calling this function. | |
1119 | * This function updates the chip attention bits for the ring to inform firmware | |
1120 | * that there are pending work to be done for this ring and requests an | |
1121 | * interrupt when there is space available in the ring. This function is | |
1122 | * called when the driver is unable to post more iocbs to the ring due | |
1123 | * to unavailability of space in the ring. | |
1124 | **/ | |
dea3101e | 1125 | static void |
2e0fef85 | 1126 | lpfc_sli_update_full_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) |
dea3101e | 1127 | { |
1128 | int ringno = pring->ringno; | |
1129 | ||
1130 | pring->flag |= LPFC_CALL_RING_AVAILABLE; | |
1131 | ||
1132 | wmb(); | |
1133 | ||
1134 | /* | |
1135 | * Set ring 'ringno' to SET R0CE_REQ in Chip Att register. | |
1136 | * The HBA will tell us when an IOCB entry is available. | |
1137 | */ | |
1138 | writel((CA_R0ATT|CA_R0CE_REQ) << (ringno*4), phba->CAregaddr); | |
1139 | readl(phba->CAregaddr); /* flush */ | |
1140 | ||
1141 | pring->stats.iocb_cmd_full++; | |
1142 | } | |
1143 | ||
e59058c4 | 1144 | /** |
3621a710 | 1145 | * lpfc_sli_update_ring - Update chip attention register |
e59058c4 JS |
1146 | * @phba: Pointer to HBA context object. |
1147 | * @pring: Pointer to driver SLI ring object. | |
1148 | * | |
1149 | * This function updates the chip attention register bit for the | |
1150 | * given ring to inform HBA that there is more work to be done | |
1151 | * in this ring. The caller is not required to hold any lock. | |
1152 | **/ | |
dea3101e | 1153 | static void |
2e0fef85 | 1154 | lpfc_sli_update_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) |
dea3101e | 1155 | { |
1156 | int ringno = pring->ringno; | |
1157 | ||
1158 | /* | |
1159 | * Tell the HBA that there is work to do in this ring. | |
1160 | */ | |
34b02dcd JS |
1161 | if (!(phba->sli3_options & LPFC_SLI3_CRP_ENABLED)) { |
1162 | wmb(); | |
1163 | writel(CA_R0ATT << (ringno * 4), phba->CAregaddr); | |
1164 | readl(phba->CAregaddr); /* flush */ | |
1165 | } | |
dea3101e | 1166 | } |
1167 | ||
e59058c4 | 1168 | /** |
3621a710 | 1169 | * lpfc_sli_resume_iocb - Process iocbs in the txq |
e59058c4 JS |
1170 | * @phba: Pointer to HBA context object. |
1171 | * @pring: Pointer to driver SLI ring object. | |
1172 | * | |
1173 | * This function is called with hbalock held to post pending iocbs | |
1174 | * in the txq to the firmware. This function is called when driver | |
1175 | * detects space available in the ring. | |
1176 | **/ | |
dea3101e | 1177 | static void |
2e0fef85 | 1178 | lpfc_sli_resume_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) |
dea3101e | 1179 | { |
1180 | IOCB_t *iocb; | |
1181 | struct lpfc_iocbq *nextiocb; | |
1182 | ||
1183 | /* | |
1184 | * Check to see if: | |
1185 | * (a) there is anything on the txq to send | |
1186 | * (b) link is up | |
1187 | * (c) link attention events can be processed (fcp ring only) | |
1188 | * (d) IOCB processing is not blocked by the outstanding mbox command. | |
1189 | */ | |
1190 | if (pring->txq_cnt && | |
2e0fef85 | 1191 | lpfc_is_link_up(phba) && |
dea3101e | 1192 | (pring->ringno != phba->sli.fcp_ring || |
0b727fea | 1193 | phba->sli.sli_flag & LPFC_PROCESS_LA)) { |
dea3101e | 1194 | |
1195 | while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) && | |
1196 | (nextiocb = lpfc_sli_ringtx_get(phba, pring))) | |
1197 | lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb); | |
1198 | ||
1199 | if (iocb) | |
1200 | lpfc_sli_update_ring(phba, pring); | |
1201 | else | |
1202 | lpfc_sli_update_full_ring(phba, pring); | |
1203 | } | |
1204 | ||
1205 | return; | |
1206 | } | |
1207 | ||
e59058c4 | 1208 | /** |
3621a710 | 1209 | * lpfc_sli_next_hbq_slot - Get next hbq entry for the HBQ |
e59058c4 JS |
1210 | * @phba: Pointer to HBA context object. |
1211 | * @hbqno: HBQ number. | |
1212 | * | |
1213 | * This function is called with hbalock held to get the next | |
1214 | * available slot for the given HBQ. If there is free slot | |
1215 | * available for the HBQ it will return pointer to the next available | |
1216 | * HBQ entry else it will return NULL. | |
1217 | **/ | |
a6ababd2 | 1218 | static struct lpfc_hbq_entry * |
ed957684 JS |
1219 | lpfc_sli_next_hbq_slot(struct lpfc_hba *phba, uint32_t hbqno) |
1220 | { | |
1221 | struct hbq_s *hbqp = &phba->hbqs[hbqno]; | |
1222 | ||
1223 | if (hbqp->next_hbqPutIdx == hbqp->hbqPutIdx && | |
1224 | ++hbqp->next_hbqPutIdx >= hbqp->entry_count) | |
1225 | hbqp->next_hbqPutIdx = 0; | |
1226 | ||
1227 | if (unlikely(hbqp->local_hbqGetIdx == hbqp->next_hbqPutIdx)) { | |
92d7f7b0 | 1228 | uint32_t raw_index = phba->hbq_get[hbqno]; |
ed957684 JS |
1229 | uint32_t getidx = le32_to_cpu(raw_index); |
1230 | ||
1231 | hbqp->local_hbqGetIdx = getidx; | |
1232 | ||
1233 | if (unlikely(hbqp->local_hbqGetIdx >= hbqp->entry_count)) { | |
1234 | lpfc_printf_log(phba, KERN_ERR, | |
92d7f7b0 | 1235 | LOG_SLI | LOG_VPORT, |
e8b62011 | 1236 | "1802 HBQ %d: local_hbqGetIdx " |
ed957684 | 1237 | "%u is > than hbqp->entry_count %u\n", |
e8b62011 | 1238 | hbqno, hbqp->local_hbqGetIdx, |
ed957684 JS |
1239 | hbqp->entry_count); |
1240 | ||
1241 | phba->link_state = LPFC_HBA_ERROR; | |
1242 | return NULL; | |
1243 | } | |
1244 | ||
1245 | if (hbqp->local_hbqGetIdx == hbqp->next_hbqPutIdx) | |
1246 | return NULL; | |
1247 | } | |
1248 | ||
51ef4c26 JS |
1249 | return (struct lpfc_hbq_entry *) phba->hbqs[hbqno].hbq_virt + |
1250 | hbqp->hbqPutIdx; | |
ed957684 JS |
1251 | } |
1252 | ||
e59058c4 | 1253 | /** |
3621a710 | 1254 | * lpfc_sli_hbqbuf_free_all - Free all the hbq buffers |
e59058c4 JS |
1255 | * @phba: Pointer to HBA context object. |
1256 | * | |
1257 | * This function is called with no lock held to free all the | |
1258 | * hbq buffers while uninitializing the SLI interface. It also | |
1259 | * frees the HBQ buffers returned by the firmware but not yet | |
1260 | * processed by the upper layers. | |
1261 | **/ | |
ed957684 JS |
1262 | void |
1263 | lpfc_sli_hbqbuf_free_all(struct lpfc_hba *phba) | |
1264 | { | |
92d7f7b0 JS |
1265 | struct lpfc_dmabuf *dmabuf, *next_dmabuf; |
1266 | struct hbq_dmabuf *hbq_buf; | |
3163f725 | 1267 | unsigned long flags; |
51ef4c26 | 1268 | int i, hbq_count; |
3163f725 | 1269 | uint32_t hbqno; |
ed957684 | 1270 | |
51ef4c26 | 1271 | hbq_count = lpfc_sli_hbq_count(); |
ed957684 | 1272 | /* Return all memory used by all HBQs */ |
3163f725 | 1273 | spin_lock_irqsave(&phba->hbalock, flags); |
51ef4c26 JS |
1274 | for (i = 0; i < hbq_count; ++i) { |
1275 | list_for_each_entry_safe(dmabuf, next_dmabuf, | |
1276 | &phba->hbqs[i].hbq_buffer_list, list) { | |
1277 | hbq_buf = container_of(dmabuf, struct hbq_dmabuf, dbuf); | |
1278 | list_del(&hbq_buf->dbuf.list); | |
1279 | (phba->hbqs[i].hbq_free_buffer)(phba, hbq_buf); | |
1280 | } | |
a8adb832 | 1281 | phba->hbqs[i].buffer_count = 0; |
ed957684 | 1282 | } |
3163f725 | 1283 | /* Return all HBQ buffer that are in-fly */ |
3772a991 JS |
1284 | list_for_each_entry_safe(dmabuf, next_dmabuf, &phba->rb_pend_list, |
1285 | list) { | |
3163f725 JS |
1286 | hbq_buf = container_of(dmabuf, struct hbq_dmabuf, dbuf); |
1287 | list_del(&hbq_buf->dbuf.list); | |
1288 | if (hbq_buf->tag == -1) { | |
1289 | (phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer) | |
1290 | (phba, hbq_buf); | |
1291 | } else { | |
1292 | hbqno = hbq_buf->tag >> 16; | |
1293 | if (hbqno >= LPFC_MAX_HBQS) | |
1294 | (phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer) | |
1295 | (phba, hbq_buf); | |
1296 | else | |
1297 | (phba->hbqs[hbqno].hbq_free_buffer)(phba, | |
1298 | hbq_buf); | |
1299 | } | |
1300 | } | |
1301 | ||
1302 | /* Mark the HBQs not in use */ | |
1303 | phba->hbq_in_use = 0; | |
1304 | spin_unlock_irqrestore(&phba->hbalock, flags); | |
ed957684 JS |
1305 | } |
1306 | ||
e59058c4 | 1307 | /** |
3621a710 | 1308 | * lpfc_sli_hbq_to_firmware - Post the hbq buffer to firmware |
e59058c4 JS |
1309 | * @phba: Pointer to HBA context object. |
1310 | * @hbqno: HBQ number. | |
1311 | * @hbq_buf: Pointer to HBQ buffer. | |
1312 | * | |
1313 | * This function is called with the hbalock held to post a | |
1314 | * hbq buffer to the firmware. If the function finds an empty | |
1315 | * slot in the HBQ, it will post the buffer. The function will return | |
1316 | * pointer to the hbq entry if it successfully post the buffer | |
1317 | * else it will return NULL. | |
1318 | **/ | |
3772a991 | 1319 | static int |
ed957684 | 1320 | lpfc_sli_hbq_to_firmware(struct lpfc_hba *phba, uint32_t hbqno, |
92d7f7b0 | 1321 | struct hbq_dmabuf *hbq_buf) |
3772a991 JS |
1322 | { |
1323 | return phba->lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buf); | |
1324 | } | |
1325 | ||
1326 | /** | |
1327 | * lpfc_sli_hbq_to_firmware_s3 - Post the hbq buffer to SLI3 firmware | |
1328 | * @phba: Pointer to HBA context object. | |
1329 | * @hbqno: HBQ number. | |
1330 | * @hbq_buf: Pointer to HBQ buffer. | |
1331 | * | |
1332 | * This function is called with the hbalock held to post a hbq buffer to the | |
1333 | * firmware. If the function finds an empty slot in the HBQ, it will post the | |
1334 | * buffer and place it on the hbq_buffer_list. The function will return zero if | |
1335 | * it successfully post the buffer else it will return an error. | |
1336 | **/ | |
1337 | static int | |
1338 | lpfc_sli_hbq_to_firmware_s3(struct lpfc_hba *phba, uint32_t hbqno, | |
1339 | struct hbq_dmabuf *hbq_buf) | |
ed957684 JS |
1340 | { |
1341 | struct lpfc_hbq_entry *hbqe; | |
92d7f7b0 | 1342 | dma_addr_t physaddr = hbq_buf->dbuf.phys; |
ed957684 JS |
1343 | |
1344 | /* Get next HBQ entry slot to use */ | |
1345 | hbqe = lpfc_sli_next_hbq_slot(phba, hbqno); | |
1346 | if (hbqe) { | |
1347 | struct hbq_s *hbqp = &phba->hbqs[hbqno]; | |
1348 | ||
92d7f7b0 JS |
1349 | hbqe->bde.addrHigh = le32_to_cpu(putPaddrHigh(physaddr)); |
1350 | hbqe->bde.addrLow = le32_to_cpu(putPaddrLow(physaddr)); | |
51ef4c26 | 1351 | hbqe->bde.tus.f.bdeSize = hbq_buf->size; |
ed957684 | 1352 | hbqe->bde.tus.f.bdeFlags = 0; |
92d7f7b0 JS |
1353 | hbqe->bde.tus.w = le32_to_cpu(hbqe->bde.tus.w); |
1354 | hbqe->buffer_tag = le32_to_cpu(hbq_buf->tag); | |
1355 | /* Sync SLIM */ | |
ed957684 JS |
1356 | hbqp->hbqPutIdx = hbqp->next_hbqPutIdx; |
1357 | writel(hbqp->hbqPutIdx, phba->hbq_put + hbqno); | |
92d7f7b0 | 1358 | /* flush */ |
ed957684 | 1359 | readl(phba->hbq_put + hbqno); |
51ef4c26 | 1360 | list_add_tail(&hbq_buf->dbuf.list, &hbqp->hbq_buffer_list); |
3772a991 JS |
1361 | return 0; |
1362 | } else | |
1363 | return -ENOMEM; | |
ed957684 JS |
1364 | } |
1365 | ||
4f774513 JS |
1366 | /** |
1367 | * lpfc_sli_hbq_to_firmware_s4 - Post the hbq buffer to SLI4 firmware | |
1368 | * @phba: Pointer to HBA context object. | |
1369 | * @hbqno: HBQ number. | |
1370 | * @hbq_buf: Pointer to HBQ buffer. | |
1371 | * | |
1372 | * This function is called with the hbalock held to post an RQE to the SLI4 | |
1373 | * firmware. If able to post the RQE to the RQ it will queue the hbq entry to | |
1374 | * the hbq_buffer_list and return zero, otherwise it will return an error. | |
1375 | **/ | |
1376 | static int | |
1377 | lpfc_sli_hbq_to_firmware_s4(struct lpfc_hba *phba, uint32_t hbqno, | |
1378 | struct hbq_dmabuf *hbq_buf) | |
1379 | { | |
1380 | int rc; | |
1381 | struct lpfc_rqe hrqe; | |
1382 | struct lpfc_rqe drqe; | |
1383 | ||
1384 | hrqe.address_lo = putPaddrLow(hbq_buf->hbuf.phys); | |
1385 | hrqe.address_hi = putPaddrHigh(hbq_buf->hbuf.phys); | |
1386 | drqe.address_lo = putPaddrLow(hbq_buf->dbuf.phys); | |
1387 | drqe.address_hi = putPaddrHigh(hbq_buf->dbuf.phys); | |
1388 | rc = lpfc_sli4_rq_put(phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq, | |
1389 | &hrqe, &drqe); | |
1390 | if (rc < 0) | |
1391 | return rc; | |
1392 | hbq_buf->tag = rc; | |
1393 | list_add_tail(&hbq_buf->dbuf.list, &phba->hbqs[hbqno].hbq_buffer_list); | |
1394 | return 0; | |
1395 | } | |
1396 | ||
e59058c4 | 1397 | /* HBQ for ELS and CT traffic. */ |
92d7f7b0 JS |
1398 | static struct lpfc_hbq_init lpfc_els_hbq = { |
1399 | .rn = 1, | |
def9c7a9 | 1400 | .entry_count = 256, |
92d7f7b0 JS |
1401 | .mask_count = 0, |
1402 | .profile = 0, | |
51ef4c26 | 1403 | .ring_mask = (1 << LPFC_ELS_RING), |
92d7f7b0 | 1404 | .buffer_count = 0, |
a257bf90 JS |
1405 | .init_count = 40, |
1406 | .add_count = 40, | |
92d7f7b0 | 1407 | }; |
ed957684 | 1408 | |
e59058c4 | 1409 | /* HBQ for the extra ring if needed */ |
51ef4c26 JS |
1410 | static struct lpfc_hbq_init lpfc_extra_hbq = { |
1411 | .rn = 1, | |
1412 | .entry_count = 200, | |
1413 | .mask_count = 0, | |
1414 | .profile = 0, | |
1415 | .ring_mask = (1 << LPFC_EXTRA_RING), | |
1416 | .buffer_count = 0, | |
1417 | .init_count = 0, | |
1418 | .add_count = 5, | |
1419 | }; | |
1420 | ||
e59058c4 | 1421 | /* Array of HBQs */ |
78b2d852 | 1422 | struct lpfc_hbq_init *lpfc_hbq_defs[] = { |
92d7f7b0 | 1423 | &lpfc_els_hbq, |
51ef4c26 | 1424 | &lpfc_extra_hbq, |
92d7f7b0 | 1425 | }; |
ed957684 | 1426 | |
e59058c4 | 1427 | /** |
3621a710 | 1428 | * lpfc_sli_hbqbuf_fill_hbqs - Post more hbq buffers to HBQ |
e59058c4 JS |
1429 | * @phba: Pointer to HBA context object. |
1430 | * @hbqno: HBQ number. | |
1431 | * @count: Number of HBQ buffers to be posted. | |
1432 | * | |
d7c255b2 JS |
1433 | * This function is called with no lock held to post more hbq buffers to the |
1434 | * given HBQ. The function returns the number of HBQ buffers successfully | |
1435 | * posted. | |
e59058c4 | 1436 | **/ |
311464ec | 1437 | static int |
92d7f7b0 | 1438 | lpfc_sli_hbqbuf_fill_hbqs(struct lpfc_hba *phba, uint32_t hbqno, uint32_t count) |
ed957684 | 1439 | { |
d7c255b2 | 1440 | uint32_t i, posted = 0; |
3163f725 | 1441 | unsigned long flags; |
92d7f7b0 | 1442 | struct hbq_dmabuf *hbq_buffer; |
d7c255b2 | 1443 | LIST_HEAD(hbq_buf_list); |
eafe1df9 | 1444 | if (!phba->hbqs[hbqno].hbq_alloc_buffer) |
51ef4c26 | 1445 | return 0; |
51ef4c26 | 1446 | |
d7c255b2 JS |
1447 | if ((phba->hbqs[hbqno].buffer_count + count) > |
1448 | lpfc_hbq_defs[hbqno]->entry_count) | |
1449 | count = lpfc_hbq_defs[hbqno]->entry_count - | |
1450 | phba->hbqs[hbqno].buffer_count; | |
1451 | if (!count) | |
1452 | return 0; | |
1453 | /* Allocate HBQ entries */ | |
1454 | for (i = 0; i < count; i++) { | |
1455 | hbq_buffer = (phba->hbqs[hbqno].hbq_alloc_buffer)(phba); | |
1456 | if (!hbq_buffer) | |
1457 | break; | |
1458 | list_add_tail(&hbq_buffer->dbuf.list, &hbq_buf_list); | |
1459 | } | |
3163f725 JS |
1460 | /* Check whether HBQ is still in use */ |
1461 | spin_lock_irqsave(&phba->hbalock, flags); | |
eafe1df9 | 1462 | if (!phba->hbq_in_use) |
d7c255b2 JS |
1463 | goto err; |
1464 | while (!list_empty(&hbq_buf_list)) { | |
1465 | list_remove_head(&hbq_buf_list, hbq_buffer, struct hbq_dmabuf, | |
1466 | dbuf.list); | |
1467 | hbq_buffer->tag = (phba->hbqs[hbqno].buffer_count | | |
1468 | (hbqno << 16)); | |
3772a991 | 1469 | if (!lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer)) { |
a8adb832 | 1470 | phba->hbqs[hbqno].buffer_count++; |
d7c255b2 JS |
1471 | posted++; |
1472 | } else | |
51ef4c26 | 1473 | (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer); |
ed957684 | 1474 | } |
3163f725 | 1475 | spin_unlock_irqrestore(&phba->hbalock, flags); |
d7c255b2 JS |
1476 | return posted; |
1477 | err: | |
eafe1df9 | 1478 | spin_unlock_irqrestore(&phba->hbalock, flags); |
d7c255b2 JS |
1479 | while (!list_empty(&hbq_buf_list)) { |
1480 | list_remove_head(&hbq_buf_list, hbq_buffer, struct hbq_dmabuf, | |
1481 | dbuf.list); | |
1482 | (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer); | |
1483 | } | |
1484 | return 0; | |
ed957684 JS |
1485 | } |
1486 | ||
e59058c4 | 1487 | /** |
3621a710 | 1488 | * lpfc_sli_hbqbuf_add_hbqs - Post more HBQ buffers to firmware |
e59058c4 JS |
1489 | * @phba: Pointer to HBA context object. |
1490 | * @qno: HBQ number. | |
1491 | * | |
1492 | * This function posts more buffers to the HBQ. This function | |
d7c255b2 JS |
1493 | * is called with no lock held. The function returns the number of HBQ entries |
1494 | * successfully allocated. | |
e59058c4 | 1495 | **/ |
92d7f7b0 JS |
1496 | int |
1497 | lpfc_sli_hbqbuf_add_hbqs(struct lpfc_hba *phba, uint32_t qno) | |
ed957684 | 1498 | { |
def9c7a9 JS |
1499 | if (phba->sli_rev == LPFC_SLI_REV4) |
1500 | return 0; | |
1501 | else | |
1502 | return lpfc_sli_hbqbuf_fill_hbqs(phba, qno, | |
1503 | lpfc_hbq_defs[qno]->add_count); | |
92d7f7b0 | 1504 | } |
ed957684 | 1505 | |
e59058c4 | 1506 | /** |
3621a710 | 1507 | * lpfc_sli_hbqbuf_init_hbqs - Post initial buffers to the HBQ |
e59058c4 JS |
1508 | * @phba: Pointer to HBA context object. |
1509 | * @qno: HBQ queue number. | |
1510 | * | |
1511 | * This function is called from SLI initialization code path with | |
1512 | * no lock held to post initial HBQ buffers to firmware. The | |
d7c255b2 | 1513 | * function returns the number of HBQ entries successfully allocated. |
e59058c4 | 1514 | **/ |
a6ababd2 | 1515 | static int |
92d7f7b0 JS |
1516 | lpfc_sli_hbqbuf_init_hbqs(struct lpfc_hba *phba, uint32_t qno) |
1517 | { | |
def9c7a9 JS |
1518 | if (phba->sli_rev == LPFC_SLI_REV4) |
1519 | return lpfc_sli_hbqbuf_fill_hbqs(phba, qno, | |
1520 | lpfc_hbq_defs[qno]->entry_count); | |
1521 | else | |
1522 | return lpfc_sli_hbqbuf_fill_hbqs(phba, qno, | |
1523 | lpfc_hbq_defs[qno]->init_count); | |
ed957684 JS |
1524 | } |
1525 | ||
3772a991 JS |
1526 | /** |
1527 | * lpfc_sli_hbqbuf_get - Remove the first hbq off of an hbq list | |
1528 | * @phba: Pointer to HBA context object. | |
1529 | * @hbqno: HBQ number. | |
1530 | * | |
1531 | * This function removes the first hbq buffer on an hbq list and returns a | |
1532 | * pointer to that buffer. If it finds no buffers on the list it returns NULL. | |
1533 | **/ | |
1534 | static struct hbq_dmabuf * | |
1535 | lpfc_sli_hbqbuf_get(struct list_head *rb_list) | |
1536 | { | |
1537 | struct lpfc_dmabuf *d_buf; | |
1538 | ||
1539 | list_remove_head(rb_list, d_buf, struct lpfc_dmabuf, list); | |
1540 | if (!d_buf) | |
1541 | return NULL; | |
1542 | return container_of(d_buf, struct hbq_dmabuf, dbuf); | |
1543 | } | |
1544 | ||
e59058c4 | 1545 | /** |
3621a710 | 1546 | * lpfc_sli_hbqbuf_find - Find the hbq buffer associated with a tag |
e59058c4 JS |
1547 | * @phba: Pointer to HBA context object. |
1548 | * @tag: Tag of the hbq buffer. | |
1549 | * | |
1550 | * This function is called with hbalock held. This function searches | |
1551 | * for the hbq buffer associated with the given tag in the hbq buffer | |
1552 | * list. If it finds the hbq buffer, it returns the hbq_buffer other wise | |
1553 | * it returns NULL. | |
1554 | **/ | |
a6ababd2 | 1555 | static struct hbq_dmabuf * |
92d7f7b0 | 1556 | lpfc_sli_hbqbuf_find(struct lpfc_hba *phba, uint32_t tag) |
ed957684 | 1557 | { |
92d7f7b0 JS |
1558 | struct lpfc_dmabuf *d_buf; |
1559 | struct hbq_dmabuf *hbq_buf; | |
51ef4c26 JS |
1560 | uint32_t hbqno; |
1561 | ||
1562 | hbqno = tag >> 16; | |
a0a74e45 | 1563 | if (hbqno >= LPFC_MAX_HBQS) |
51ef4c26 | 1564 | return NULL; |
ed957684 | 1565 | |
3772a991 | 1566 | spin_lock_irq(&phba->hbalock); |
51ef4c26 | 1567 | list_for_each_entry(d_buf, &phba->hbqs[hbqno].hbq_buffer_list, list) { |
92d7f7b0 | 1568 | hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf); |
51ef4c26 | 1569 | if (hbq_buf->tag == tag) { |
3772a991 | 1570 | spin_unlock_irq(&phba->hbalock); |
92d7f7b0 | 1571 | return hbq_buf; |
ed957684 JS |
1572 | } |
1573 | } | |
3772a991 | 1574 | spin_unlock_irq(&phba->hbalock); |
92d7f7b0 | 1575 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI | LOG_VPORT, |
e8b62011 | 1576 | "1803 Bad hbq tag. Data: x%x x%x\n", |
a8adb832 | 1577 | tag, phba->hbqs[tag >> 16].buffer_count); |
92d7f7b0 | 1578 | return NULL; |
ed957684 JS |
1579 | } |
1580 | ||
e59058c4 | 1581 | /** |
3621a710 | 1582 | * lpfc_sli_free_hbq - Give back the hbq buffer to firmware |
e59058c4 JS |
1583 | * @phba: Pointer to HBA context object. |
1584 | * @hbq_buffer: Pointer to HBQ buffer. | |
1585 | * | |
1586 | * This function is called with hbalock. This function gives back | |
1587 | * the hbq buffer to firmware. If the HBQ does not have space to | |
1588 | * post the buffer, it will free the buffer. | |
1589 | **/ | |
ed957684 | 1590 | void |
51ef4c26 | 1591 | lpfc_sli_free_hbq(struct lpfc_hba *phba, struct hbq_dmabuf *hbq_buffer) |
ed957684 JS |
1592 | { |
1593 | uint32_t hbqno; | |
1594 | ||
51ef4c26 JS |
1595 | if (hbq_buffer) { |
1596 | hbqno = hbq_buffer->tag >> 16; | |
3772a991 | 1597 | if (lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer)) |
51ef4c26 | 1598 | (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer); |
ed957684 JS |
1599 | } |
1600 | } | |
1601 | ||
e59058c4 | 1602 | /** |
3621a710 | 1603 | * lpfc_sli_chk_mbx_command - Check if the mailbox is a legitimate mailbox |
e59058c4 JS |
1604 | * @mbxCommand: mailbox command code. |
1605 | * | |
1606 | * This function is called by the mailbox event handler function to verify | |
1607 | * that the completed mailbox command is a legitimate mailbox command. If the | |
1608 | * completed mailbox is not known to the function, it will return MBX_SHUTDOWN | |
1609 | * and the mailbox event handler will take the HBA offline. | |
1610 | **/ | |
dea3101e | 1611 | static int |
1612 | lpfc_sli_chk_mbx_command(uint8_t mbxCommand) | |
1613 | { | |
1614 | uint8_t ret; | |
1615 | ||
1616 | switch (mbxCommand) { | |
1617 | case MBX_LOAD_SM: | |
1618 | case MBX_READ_NV: | |
1619 | case MBX_WRITE_NV: | |
a8adb832 | 1620 | case MBX_WRITE_VPARMS: |
dea3101e | 1621 | case MBX_RUN_BIU_DIAG: |
1622 | case MBX_INIT_LINK: | |
1623 | case MBX_DOWN_LINK: | |
1624 | case MBX_CONFIG_LINK: | |
1625 | case MBX_CONFIG_RING: | |
1626 | case MBX_RESET_RING: | |
1627 | case MBX_READ_CONFIG: | |
1628 | case MBX_READ_RCONFIG: | |
1629 | case MBX_READ_SPARM: | |
1630 | case MBX_READ_STATUS: | |
1631 | case MBX_READ_RPI: | |
1632 | case MBX_READ_XRI: | |
1633 | case MBX_READ_REV: | |
1634 | case MBX_READ_LNK_STAT: | |
1635 | case MBX_REG_LOGIN: | |
1636 | case MBX_UNREG_LOGIN: | |
1637 | case MBX_READ_LA: | |
1638 | case MBX_CLEAR_LA: | |
1639 | case MBX_DUMP_MEMORY: | |
1640 | case MBX_DUMP_CONTEXT: | |
1641 | case MBX_RUN_DIAGS: | |
1642 | case MBX_RESTART: | |
1643 | case MBX_UPDATE_CFG: | |
1644 | case MBX_DOWN_LOAD: | |
1645 | case MBX_DEL_LD_ENTRY: | |
1646 | case MBX_RUN_PROGRAM: | |
1647 | case MBX_SET_MASK: | |
09372820 | 1648 | case MBX_SET_VARIABLE: |
dea3101e | 1649 | case MBX_UNREG_D_ID: |
41415862 | 1650 | case MBX_KILL_BOARD: |
dea3101e | 1651 | case MBX_CONFIG_FARP: |
41415862 | 1652 | case MBX_BEACON: |
dea3101e | 1653 | case MBX_LOAD_AREA: |
1654 | case MBX_RUN_BIU_DIAG64: | |
1655 | case MBX_CONFIG_PORT: | |
1656 | case MBX_READ_SPARM64: | |
1657 | case MBX_READ_RPI64: | |
1658 | case MBX_REG_LOGIN64: | |
1659 | case MBX_READ_LA64: | |
09372820 | 1660 | case MBX_WRITE_WWN: |
dea3101e | 1661 | case MBX_SET_DEBUG: |
1662 | case MBX_LOAD_EXP_ROM: | |
57127f15 | 1663 | case MBX_ASYNCEVT_ENABLE: |
92d7f7b0 JS |
1664 | case MBX_REG_VPI: |
1665 | case MBX_UNREG_VPI: | |
858c9f6c | 1666 | case MBX_HEARTBEAT: |
84774a4d JS |
1667 | case MBX_PORT_CAPABILITIES: |
1668 | case MBX_PORT_IOV_CONTROL: | |
04c68496 JS |
1669 | case MBX_SLI4_CONFIG: |
1670 | case MBX_SLI4_REQ_FTRS: | |
1671 | case MBX_REG_FCFI: | |
1672 | case MBX_UNREG_FCFI: | |
1673 | case MBX_REG_VFI: | |
1674 | case MBX_UNREG_VFI: | |
1675 | case MBX_INIT_VPI: | |
1676 | case MBX_INIT_VFI: | |
1677 | case MBX_RESUME_RPI: | |
c7495937 JS |
1678 | case MBX_READ_EVENT_LOG_STATUS: |
1679 | case MBX_READ_EVENT_LOG: | |
dea3101e | 1680 | ret = mbxCommand; |
1681 | break; | |
1682 | default: | |
1683 | ret = MBX_SHUTDOWN; | |
1684 | break; | |
1685 | } | |
2e0fef85 | 1686 | return ret; |
dea3101e | 1687 | } |
e59058c4 JS |
1688 | |
1689 | /** | |
3621a710 | 1690 | * lpfc_sli_wake_mbox_wait - lpfc_sli_issue_mbox_wait mbox completion handler |
e59058c4 JS |
1691 | * @phba: Pointer to HBA context object. |
1692 | * @pmboxq: Pointer to mailbox command. | |
1693 | * | |
1694 | * This is completion handler function for mailbox commands issued from | |
1695 | * lpfc_sli_issue_mbox_wait function. This function is called by the | |
1696 | * mailbox event handler function with no lock held. This function | |
1697 | * will wake up thread waiting on the wait queue pointed by context1 | |
1698 | * of the mailbox. | |
1699 | **/ | |
04c68496 | 1700 | void |
2e0fef85 | 1701 | lpfc_sli_wake_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq) |
dea3101e | 1702 | { |
1703 | wait_queue_head_t *pdone_q; | |
858c9f6c | 1704 | unsigned long drvr_flag; |
dea3101e | 1705 | |
1706 | /* | |
1707 | * If pdone_q is empty, the driver thread gave up waiting and | |
1708 | * continued running. | |
1709 | */ | |
7054a606 | 1710 | pmboxq->mbox_flag |= LPFC_MBX_WAKE; |
858c9f6c | 1711 | spin_lock_irqsave(&phba->hbalock, drvr_flag); |
dea3101e | 1712 | pdone_q = (wait_queue_head_t *) pmboxq->context1; |
1713 | if (pdone_q) | |
1714 | wake_up_interruptible(pdone_q); | |
858c9f6c | 1715 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); |
dea3101e | 1716 | return; |
1717 | } | |
1718 | ||
e59058c4 JS |
1719 | |
1720 | /** | |
3621a710 | 1721 | * lpfc_sli_def_mbox_cmpl - Default mailbox completion handler |
e59058c4 JS |
1722 | * @phba: Pointer to HBA context object. |
1723 | * @pmb: Pointer to mailbox object. | |
1724 | * | |
1725 | * This function is the default mailbox completion handler. It | |
1726 | * frees the memory resources associated with the completed mailbox | |
1727 | * command. If the completed command is a REG_LOGIN mailbox command, | |
1728 | * this function will issue a UREG_LOGIN to re-claim the RPI. | |
1729 | **/ | |
dea3101e | 1730 | void |
2e0fef85 | 1731 | lpfc_sli_def_mbox_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) |
dea3101e | 1732 | { |
d439d286 | 1733 | struct lpfc_vport *vport = pmb->vport; |
dea3101e | 1734 | struct lpfc_dmabuf *mp; |
d439d286 | 1735 | struct lpfc_nodelist *ndlp; |
04c68496 | 1736 | uint16_t rpi, vpi; |
7054a606 JS |
1737 | int rc; |
1738 | ||
dea3101e | 1739 | mp = (struct lpfc_dmabuf *) (pmb->context1); |
7054a606 | 1740 | |
dea3101e | 1741 | if (mp) { |
1742 | lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
1743 | kfree(mp); | |
1744 | } | |
7054a606 | 1745 | |
04c68496 JS |
1746 | if ((pmb->u.mb.mbxCommand == MBX_UNREG_LOGIN) && |
1747 | (phba->sli_rev == LPFC_SLI_REV4)) | |
1748 | lpfc_sli4_free_rpi(phba, pmb->u.mb.un.varUnregLogin.rpi); | |
1749 | ||
7054a606 JS |
1750 | /* |
1751 | * If a REG_LOGIN succeeded after node is destroyed or node | |
1752 | * is in re-discovery driver need to cleanup the RPI. | |
1753 | */ | |
2e0fef85 | 1754 | if (!(phba->pport->load_flag & FC_UNLOADING) && |
04c68496 JS |
1755 | pmb->u.mb.mbxCommand == MBX_REG_LOGIN64 && |
1756 | !pmb->u.mb.mbxStatus) { | |
1757 | rpi = pmb->u.mb.un.varWords[0]; | |
1758 | vpi = pmb->u.mb.un.varRegLogin.vpi - phba->vpi_base; | |
1759 | lpfc_unreg_login(phba, vpi, rpi, pmb); | |
92d7f7b0 | 1760 | pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; |
7054a606 JS |
1761 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); |
1762 | if (rc != MBX_NOT_FINISHED) | |
1763 | return; | |
1764 | } | |
1765 | ||
695a814e JS |
1766 | /* Unreg VPI, if the REG_VPI succeed after VLink failure */ |
1767 | if ((pmb->u.mb.mbxCommand == MBX_REG_VPI) && | |
1768 | !(phba->pport->load_flag & FC_UNLOADING) && | |
1769 | !pmb->u.mb.mbxStatus) { | |
1770 | lpfc_unreg_vpi(phba, pmb->u.mb.un.varRegVpi.vpi, pmb); | |
1771 | pmb->vport = vport; | |
1772 | pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
1773 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); | |
1774 | if (rc != MBX_NOT_FINISHED) | |
1775 | return; | |
1776 | } | |
1777 | ||
d439d286 JS |
1778 | if (pmb->u.mb.mbxCommand == MBX_REG_LOGIN64) { |
1779 | ndlp = (struct lpfc_nodelist *)pmb->context2; | |
1780 | lpfc_nlp_put(ndlp); | |
1781 | pmb->context2 = NULL; | |
1782 | } | |
1783 | ||
04c68496 JS |
1784 | if (bf_get(lpfc_mqe_command, &pmb->u.mqe) == MBX_SLI4_CONFIG) |
1785 | lpfc_sli4_mbox_cmd_free(phba, pmb); | |
1786 | else | |
1787 | mempool_free(pmb, phba->mbox_mem_pool); | |
dea3101e | 1788 | } |
1789 | ||
e59058c4 | 1790 | /** |
3621a710 | 1791 | * lpfc_sli_handle_mb_event - Handle mailbox completions from firmware |
e59058c4 JS |
1792 | * @phba: Pointer to HBA context object. |
1793 | * | |
1794 | * This function is called with no lock held. This function processes all | |
1795 | * the completed mailbox commands and gives it to upper layers. The interrupt | |
1796 | * service routine processes mailbox completion interrupt and adds completed | |
1797 | * mailbox commands to the mboxq_cmpl queue and signals the worker thread. | |
1798 | * Worker thread call lpfc_sli_handle_mb_event, which will return the | |
1799 | * completed mailbox commands in mboxq_cmpl queue to the upper layers. This | |
1800 | * function returns the mailbox commands to the upper layer by calling the | |
1801 | * completion handler function of each mailbox. | |
1802 | **/ | |
dea3101e | 1803 | int |
2e0fef85 | 1804 | lpfc_sli_handle_mb_event(struct lpfc_hba *phba) |
dea3101e | 1805 | { |
92d7f7b0 | 1806 | MAILBOX_t *pmbox; |
dea3101e | 1807 | LPFC_MBOXQ_t *pmb; |
92d7f7b0 JS |
1808 | int rc; |
1809 | LIST_HEAD(cmplq); | |
dea3101e | 1810 | |
1811 | phba->sli.slistat.mbox_event++; | |
1812 | ||
92d7f7b0 JS |
1813 | /* Get all completed mailboxe buffers into the cmplq */ |
1814 | spin_lock_irq(&phba->hbalock); | |
1815 | list_splice_init(&phba->sli.mboxq_cmpl, &cmplq); | |
1816 | spin_unlock_irq(&phba->hbalock); | |
dea3101e | 1817 | |
92d7f7b0 JS |
1818 | /* Get a Mailbox buffer to setup mailbox commands for callback */ |
1819 | do { | |
1820 | list_remove_head(&cmplq, pmb, LPFC_MBOXQ_t, list); | |
1821 | if (pmb == NULL) | |
1822 | break; | |
2e0fef85 | 1823 | |
04c68496 | 1824 | pmbox = &pmb->u.mb; |
dea3101e | 1825 | |
858c9f6c JS |
1826 | if (pmbox->mbxCommand != MBX_HEARTBEAT) { |
1827 | if (pmb->vport) { | |
1828 | lpfc_debugfs_disc_trc(pmb->vport, | |
1829 | LPFC_DISC_TRC_MBOX_VPORT, | |
1830 | "MBOX cmpl vport: cmd:x%x mb:x%x x%x", | |
1831 | (uint32_t)pmbox->mbxCommand, | |
1832 | pmbox->un.varWords[0], | |
1833 | pmbox->un.varWords[1]); | |
1834 | } | |
1835 | else { | |
1836 | lpfc_debugfs_disc_trc(phba->pport, | |
1837 | LPFC_DISC_TRC_MBOX, | |
1838 | "MBOX cmpl: cmd:x%x mb:x%x x%x", | |
1839 | (uint32_t)pmbox->mbxCommand, | |
1840 | pmbox->un.varWords[0], | |
1841 | pmbox->un.varWords[1]); | |
1842 | } | |
1843 | } | |
1844 | ||
dea3101e | 1845 | /* |
1846 | * It is a fatal error if unknown mbox command completion. | |
1847 | */ | |
1848 | if (lpfc_sli_chk_mbx_command(pmbox->mbxCommand) == | |
1849 | MBX_SHUTDOWN) { | |
af901ca1 | 1850 | /* Unknown mailbox command compl */ |
92d7f7b0 | 1851 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, |
e8b62011 | 1852 | "(%d):0323 Unknown Mailbox command " |
04c68496 | 1853 | "x%x (x%x) Cmpl\n", |
92d7f7b0 | 1854 | pmb->vport ? pmb->vport->vpi : 0, |
04c68496 JS |
1855 | pmbox->mbxCommand, |
1856 | lpfc_sli4_mbox_opcode_get(phba, pmb)); | |
2e0fef85 | 1857 | phba->link_state = LPFC_HBA_ERROR; |
dea3101e | 1858 | phba->work_hs = HS_FFER3; |
1859 | lpfc_handle_eratt(phba); | |
92d7f7b0 | 1860 | continue; |
dea3101e | 1861 | } |
1862 | ||
dea3101e | 1863 | if (pmbox->mbxStatus) { |
1864 | phba->sli.slistat.mbox_stat_err++; | |
1865 | if (pmbox->mbxStatus == MBXERR_NO_RESOURCES) { | |
1866 | /* Mbox cmd cmpl error - RETRYing */ | |
92d7f7b0 JS |
1867 | lpfc_printf_log(phba, KERN_INFO, |
1868 | LOG_MBOX | LOG_SLI, | |
e8b62011 | 1869 | "(%d):0305 Mbox cmd cmpl " |
92d7f7b0 | 1870 | "error - RETRYing Data: x%x " |
04c68496 | 1871 | "(x%x) x%x x%x x%x\n", |
92d7f7b0 JS |
1872 | pmb->vport ? pmb->vport->vpi :0, |
1873 | pmbox->mbxCommand, | |
04c68496 JS |
1874 | lpfc_sli4_mbox_opcode_get(phba, |
1875 | pmb), | |
92d7f7b0 JS |
1876 | pmbox->mbxStatus, |
1877 | pmbox->un.varWords[0], | |
1878 | pmb->vport->port_state); | |
dea3101e | 1879 | pmbox->mbxStatus = 0; |
1880 | pmbox->mbxOwner = OWN_HOST; | |
dea3101e | 1881 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); |
04c68496 | 1882 | if (rc != MBX_NOT_FINISHED) |
92d7f7b0 | 1883 | continue; |
dea3101e | 1884 | } |
1885 | } | |
1886 | ||
1887 | /* Mailbox cmd <cmd> Cmpl <cmpl> */ | |
92d7f7b0 | 1888 | lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI, |
04c68496 | 1889 | "(%d):0307 Mailbox cmd x%x (x%x) Cmpl x%p " |
dea3101e | 1890 | "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x\n", |
92d7f7b0 | 1891 | pmb->vport ? pmb->vport->vpi : 0, |
dea3101e | 1892 | pmbox->mbxCommand, |
04c68496 | 1893 | lpfc_sli4_mbox_opcode_get(phba, pmb), |
dea3101e | 1894 | pmb->mbox_cmpl, |
1895 | *((uint32_t *) pmbox), | |
1896 | pmbox->un.varWords[0], | |
1897 | pmbox->un.varWords[1], | |
1898 | pmbox->un.varWords[2], | |
1899 | pmbox->un.varWords[3], | |
1900 | pmbox->un.varWords[4], | |
1901 | pmbox->un.varWords[5], | |
1902 | pmbox->un.varWords[6], | |
1903 | pmbox->un.varWords[7]); | |
1904 | ||
92d7f7b0 | 1905 | if (pmb->mbox_cmpl) |
dea3101e | 1906 | pmb->mbox_cmpl(phba,pmb); |
92d7f7b0 JS |
1907 | } while (1); |
1908 | return 0; | |
1909 | } | |
dea3101e | 1910 | |
e59058c4 | 1911 | /** |
3621a710 | 1912 | * lpfc_sli_get_buff - Get the buffer associated with the buffer tag |
e59058c4 JS |
1913 | * @phba: Pointer to HBA context object. |
1914 | * @pring: Pointer to driver SLI ring object. | |
1915 | * @tag: buffer tag. | |
1916 | * | |
1917 | * This function is called with no lock held. When QUE_BUFTAG_BIT bit | |
1918 | * is set in the tag the buffer is posted for a particular exchange, | |
1919 | * the function will return the buffer without replacing the buffer. | |
1920 | * If the buffer is for unsolicited ELS or CT traffic, this function | |
1921 | * returns the buffer and also posts another buffer to the firmware. | |
1922 | **/ | |
76bb24ef JS |
1923 | static struct lpfc_dmabuf * |
1924 | lpfc_sli_get_buff(struct lpfc_hba *phba, | |
9f1e1b50 JS |
1925 | struct lpfc_sli_ring *pring, |
1926 | uint32_t tag) | |
76bb24ef | 1927 | { |
9f1e1b50 JS |
1928 | struct hbq_dmabuf *hbq_entry; |
1929 | ||
76bb24ef JS |
1930 | if (tag & QUE_BUFTAG_BIT) |
1931 | return lpfc_sli_ring_taggedbuf_get(phba, pring, tag); | |
9f1e1b50 JS |
1932 | hbq_entry = lpfc_sli_hbqbuf_find(phba, tag); |
1933 | if (!hbq_entry) | |
1934 | return NULL; | |
1935 | return &hbq_entry->dbuf; | |
76bb24ef | 1936 | } |
57127f15 | 1937 | |
3772a991 JS |
1938 | /** |
1939 | * lpfc_complete_unsol_iocb - Complete an unsolicited sequence | |
1940 | * @phba: Pointer to HBA context object. | |
1941 | * @pring: Pointer to driver SLI ring object. | |
1942 | * @saveq: Pointer to the iocbq struct representing the sequence starting frame. | |
1943 | * @fch_r_ctl: the r_ctl for the first frame of the sequence. | |
1944 | * @fch_type: the type for the first frame of the sequence. | |
1945 | * | |
1946 | * This function is called with no lock held. This function uses the r_ctl and | |
1947 | * type of the received sequence to find the correct callback function to call | |
1948 | * to process the sequence. | |
1949 | **/ | |
1950 | static int | |
1951 | lpfc_complete_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
1952 | struct lpfc_iocbq *saveq, uint32_t fch_r_ctl, | |
1953 | uint32_t fch_type) | |
1954 | { | |
1955 | int i; | |
1956 | ||
1957 | /* unSolicited Responses */ | |
1958 | if (pring->prt[0].profile) { | |
1959 | if (pring->prt[0].lpfc_sli_rcv_unsol_event) | |
1960 | (pring->prt[0].lpfc_sli_rcv_unsol_event) (phba, pring, | |
1961 | saveq); | |
1962 | return 1; | |
1963 | } | |
1964 | /* We must search, based on rctl / type | |
1965 | for the right routine */ | |
1966 | for (i = 0; i < pring->num_mask; i++) { | |
1967 | if ((pring->prt[i].rctl == fch_r_ctl) && | |
1968 | (pring->prt[i].type == fch_type)) { | |
1969 | if (pring->prt[i].lpfc_sli_rcv_unsol_event) | |
1970 | (pring->prt[i].lpfc_sli_rcv_unsol_event) | |
1971 | (phba, pring, saveq); | |
1972 | return 1; | |
1973 | } | |
1974 | } | |
1975 | return 0; | |
1976 | } | |
e59058c4 JS |
1977 | |
1978 | /** | |
3621a710 | 1979 | * lpfc_sli_process_unsol_iocb - Unsolicited iocb handler |
e59058c4 JS |
1980 | * @phba: Pointer to HBA context object. |
1981 | * @pring: Pointer to driver SLI ring object. | |
1982 | * @saveq: Pointer to the unsolicited iocb. | |
1983 | * | |
1984 | * This function is called with no lock held by the ring event handler | |
1985 | * when there is an unsolicited iocb posted to the response ring by the | |
1986 | * firmware. This function gets the buffer associated with the iocbs | |
1987 | * and calls the event handler for the ring. This function handles both | |
1988 | * qring buffers and hbq buffers. | |
1989 | * When the function returns 1 the caller can free the iocb object otherwise | |
1990 | * upper layer functions will free the iocb objects. | |
1991 | **/ | |
dea3101e | 1992 | static int |
1993 | lpfc_sli_process_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
1994 | struct lpfc_iocbq *saveq) | |
1995 | { | |
1996 | IOCB_t * irsp; | |
1997 | WORD5 * w5p; | |
1998 | uint32_t Rctl, Type; | |
3772a991 | 1999 | uint32_t match; |
76bb24ef | 2000 | struct lpfc_iocbq *iocbq; |
3163f725 | 2001 | struct lpfc_dmabuf *dmzbuf; |
dea3101e | 2002 | |
2003 | match = 0; | |
2004 | irsp = &(saveq->iocb); | |
57127f15 JS |
2005 | |
2006 | if (irsp->ulpCommand == CMD_ASYNC_STATUS) { | |
2007 | if (pring->lpfc_sli_rcv_async_status) | |
2008 | pring->lpfc_sli_rcv_async_status(phba, pring, saveq); | |
2009 | else | |
2010 | lpfc_printf_log(phba, | |
2011 | KERN_WARNING, | |
2012 | LOG_SLI, | |
2013 | "0316 Ring %d handler: unexpected " | |
2014 | "ASYNC_STATUS iocb received evt_code " | |
2015 | "0x%x\n", | |
2016 | pring->ringno, | |
2017 | irsp->un.asyncstat.evt_code); | |
2018 | return 1; | |
2019 | } | |
2020 | ||
3163f725 JS |
2021 | if ((irsp->ulpCommand == CMD_IOCB_RET_XRI64_CX) && |
2022 | (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)) { | |
2023 | if (irsp->ulpBdeCount > 0) { | |
2024 | dmzbuf = lpfc_sli_get_buff(phba, pring, | |
2025 | irsp->un.ulpWord[3]); | |
2026 | lpfc_in_buf_free(phba, dmzbuf); | |
2027 | } | |
2028 | ||
2029 | if (irsp->ulpBdeCount > 1) { | |
2030 | dmzbuf = lpfc_sli_get_buff(phba, pring, | |
2031 | irsp->unsli3.sli3Words[3]); | |
2032 | lpfc_in_buf_free(phba, dmzbuf); | |
2033 | } | |
2034 | ||
2035 | if (irsp->ulpBdeCount > 2) { | |
2036 | dmzbuf = lpfc_sli_get_buff(phba, pring, | |
2037 | irsp->unsli3.sli3Words[7]); | |
2038 | lpfc_in_buf_free(phba, dmzbuf); | |
2039 | } | |
2040 | ||
2041 | return 1; | |
2042 | } | |
2043 | ||
92d7f7b0 | 2044 | if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) { |
76bb24ef JS |
2045 | if (irsp->ulpBdeCount != 0) { |
2046 | saveq->context2 = lpfc_sli_get_buff(phba, pring, | |
2047 | irsp->un.ulpWord[3]); | |
2048 | if (!saveq->context2) | |
2049 | lpfc_printf_log(phba, | |
2050 | KERN_ERR, | |
2051 | LOG_SLI, | |
2052 | "0341 Ring %d Cannot find buffer for " | |
2053 | "an unsolicited iocb. tag 0x%x\n", | |
2054 | pring->ringno, | |
2055 | irsp->un.ulpWord[3]); | |
76bb24ef JS |
2056 | } |
2057 | if (irsp->ulpBdeCount == 2) { | |
2058 | saveq->context3 = lpfc_sli_get_buff(phba, pring, | |
2059 | irsp->unsli3.sli3Words[7]); | |
2060 | if (!saveq->context3) | |
2061 | lpfc_printf_log(phba, | |
2062 | KERN_ERR, | |
2063 | LOG_SLI, | |
2064 | "0342 Ring %d Cannot find buffer for an" | |
2065 | " unsolicited iocb. tag 0x%x\n", | |
2066 | pring->ringno, | |
2067 | irsp->unsli3.sli3Words[7]); | |
2068 | } | |
2069 | list_for_each_entry(iocbq, &saveq->list, list) { | |
76bb24ef | 2070 | irsp = &(iocbq->iocb); |
76bb24ef JS |
2071 | if (irsp->ulpBdeCount != 0) { |
2072 | iocbq->context2 = lpfc_sli_get_buff(phba, pring, | |
2073 | irsp->un.ulpWord[3]); | |
9c2face6 | 2074 | if (!iocbq->context2) |
76bb24ef JS |
2075 | lpfc_printf_log(phba, |
2076 | KERN_ERR, | |
2077 | LOG_SLI, | |
2078 | "0343 Ring %d Cannot find " | |
2079 | "buffer for an unsolicited iocb" | |
2080 | ". tag 0x%x\n", pring->ringno, | |
92d7f7b0 | 2081 | irsp->un.ulpWord[3]); |
76bb24ef JS |
2082 | } |
2083 | if (irsp->ulpBdeCount == 2) { | |
2084 | iocbq->context3 = lpfc_sli_get_buff(phba, pring, | |
51ef4c26 | 2085 | irsp->unsli3.sli3Words[7]); |
9c2face6 | 2086 | if (!iocbq->context3) |
76bb24ef JS |
2087 | lpfc_printf_log(phba, |
2088 | KERN_ERR, | |
2089 | LOG_SLI, | |
2090 | "0344 Ring %d Cannot find " | |
2091 | "buffer for an unsolicited " | |
2092 | "iocb. tag 0x%x\n", | |
2093 | pring->ringno, | |
2094 | irsp->unsli3.sli3Words[7]); | |
2095 | } | |
2096 | } | |
92d7f7b0 | 2097 | } |
9c2face6 JS |
2098 | if (irsp->ulpBdeCount != 0 && |
2099 | (irsp->ulpCommand == CMD_IOCB_RCV_CONT64_CX || | |
2100 | irsp->ulpStatus == IOSTAT_INTERMED_RSP)) { | |
2101 | int found = 0; | |
2102 | ||
2103 | /* search continue save q for same XRI */ | |
2104 | list_for_each_entry(iocbq, &pring->iocb_continue_saveq, clist) { | |
2105 | if (iocbq->iocb.ulpContext == saveq->iocb.ulpContext) { | |
2106 | list_add_tail(&saveq->list, &iocbq->list); | |
2107 | found = 1; | |
2108 | break; | |
2109 | } | |
2110 | } | |
2111 | if (!found) | |
2112 | list_add_tail(&saveq->clist, | |
2113 | &pring->iocb_continue_saveq); | |
2114 | if (saveq->iocb.ulpStatus != IOSTAT_INTERMED_RSP) { | |
2115 | list_del_init(&iocbq->clist); | |
2116 | saveq = iocbq; | |
2117 | irsp = &(saveq->iocb); | |
2118 | } else | |
2119 | return 0; | |
2120 | } | |
2121 | if ((irsp->ulpCommand == CMD_RCV_ELS_REQ64_CX) || | |
2122 | (irsp->ulpCommand == CMD_RCV_ELS_REQ_CX) || | |
2123 | (irsp->ulpCommand == CMD_IOCB_RCV_ELS64_CX)) { | |
6a9c52cf JS |
2124 | Rctl = FC_RCTL_ELS_REQ; |
2125 | Type = FC_TYPE_ELS; | |
9c2face6 JS |
2126 | } else { |
2127 | w5p = (WORD5 *)&(saveq->iocb.un.ulpWord[5]); | |
2128 | Rctl = w5p->hcsw.Rctl; | |
2129 | Type = w5p->hcsw.Type; | |
2130 | ||
2131 | /* Firmware Workaround */ | |
2132 | if ((Rctl == 0) && (pring->ringno == LPFC_ELS_RING) && | |
2133 | (irsp->ulpCommand == CMD_RCV_SEQUENCE64_CX || | |
2134 | irsp->ulpCommand == CMD_IOCB_RCV_SEQ64_CX)) { | |
6a9c52cf JS |
2135 | Rctl = FC_RCTL_ELS_REQ; |
2136 | Type = FC_TYPE_ELS; | |
9c2face6 JS |
2137 | w5p->hcsw.Rctl = Rctl; |
2138 | w5p->hcsw.Type = Type; | |
2139 | } | |
2140 | } | |
92d7f7b0 | 2141 | |
3772a991 | 2142 | if (!lpfc_complete_unsol_iocb(phba, pring, saveq, Rctl, Type)) |
92d7f7b0 | 2143 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, |
e8b62011 | 2144 | "0313 Ring %d handler: unexpected Rctl x%x " |
92d7f7b0 | 2145 | "Type x%x received\n", |
e8b62011 | 2146 | pring->ringno, Rctl, Type); |
3772a991 | 2147 | |
92d7f7b0 | 2148 | return 1; |
dea3101e | 2149 | } |
2150 | ||
e59058c4 | 2151 | /** |
3621a710 | 2152 | * lpfc_sli_iocbq_lookup - Find command iocb for the given response iocb |
e59058c4 JS |
2153 | * @phba: Pointer to HBA context object. |
2154 | * @pring: Pointer to driver SLI ring object. | |
2155 | * @prspiocb: Pointer to response iocb object. | |
2156 | * | |
2157 | * This function looks up the iocb_lookup table to get the command iocb | |
2158 | * corresponding to the given response iocb using the iotag of the | |
2159 | * response iocb. This function is called with the hbalock held. | |
2160 | * This function returns the command iocb object if it finds the command | |
2161 | * iocb else returns NULL. | |
2162 | **/ | |
dea3101e | 2163 | static struct lpfc_iocbq * |
2e0fef85 JS |
2164 | lpfc_sli_iocbq_lookup(struct lpfc_hba *phba, |
2165 | struct lpfc_sli_ring *pring, | |
2166 | struct lpfc_iocbq *prspiocb) | |
dea3101e | 2167 | { |
dea3101e | 2168 | struct lpfc_iocbq *cmd_iocb = NULL; |
2169 | uint16_t iotag; | |
2170 | ||
604a3e30 JB |
2171 | iotag = prspiocb->iocb.ulpIoTag; |
2172 | ||
2173 | if (iotag != 0 && iotag <= phba->sli.last_iotag) { | |
2174 | cmd_iocb = phba->sli.iocbq_lookup[iotag]; | |
92d7f7b0 | 2175 | list_del_init(&cmd_iocb->list); |
2a9bf3d0 JS |
2176 | if (cmd_iocb->iocb_flag & LPFC_IO_ON_Q) { |
2177 | pring->txcmplq_cnt--; | |
2178 | cmd_iocb->iocb_flag &= ~LPFC_IO_ON_Q; | |
2179 | } | |
604a3e30 | 2180 | return cmd_iocb; |
dea3101e | 2181 | } |
2182 | ||
dea3101e | 2183 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, |
e8b62011 | 2184 | "0317 iotag x%x is out off " |
604a3e30 | 2185 | "range: max iotag x%x wd0 x%x\n", |
e8b62011 | 2186 | iotag, phba->sli.last_iotag, |
604a3e30 | 2187 | *(((uint32_t *) &prspiocb->iocb) + 7)); |
dea3101e | 2188 | return NULL; |
2189 | } | |
2190 | ||
3772a991 JS |
2191 | /** |
2192 | * lpfc_sli_iocbq_lookup_by_tag - Find command iocb for the iotag | |
2193 | * @phba: Pointer to HBA context object. | |
2194 | * @pring: Pointer to driver SLI ring object. | |
2195 | * @iotag: IOCB tag. | |
2196 | * | |
2197 | * This function looks up the iocb_lookup table to get the command iocb | |
2198 | * corresponding to the given iotag. This function is called with the | |
2199 | * hbalock held. | |
2200 | * This function returns the command iocb object if it finds the command | |
2201 | * iocb else returns NULL. | |
2202 | **/ | |
2203 | static struct lpfc_iocbq * | |
2204 | lpfc_sli_iocbq_lookup_by_tag(struct lpfc_hba *phba, | |
2205 | struct lpfc_sli_ring *pring, uint16_t iotag) | |
2206 | { | |
2207 | struct lpfc_iocbq *cmd_iocb; | |
2208 | ||
2209 | if (iotag != 0 && iotag <= phba->sli.last_iotag) { | |
2210 | cmd_iocb = phba->sli.iocbq_lookup[iotag]; | |
2211 | list_del_init(&cmd_iocb->list); | |
2a9bf3d0 JS |
2212 | if (cmd_iocb->iocb_flag & LPFC_IO_ON_Q) { |
2213 | cmd_iocb->iocb_flag &= ~LPFC_IO_ON_Q; | |
2214 | pring->txcmplq_cnt--; | |
2215 | } | |
3772a991 JS |
2216 | return cmd_iocb; |
2217 | } | |
2218 | ||
2219 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
2220 | "0372 iotag x%x is out off range: max iotag (x%x)\n", | |
2221 | iotag, phba->sli.last_iotag); | |
2222 | return NULL; | |
2223 | } | |
2224 | ||
e59058c4 | 2225 | /** |
3621a710 | 2226 | * lpfc_sli_process_sol_iocb - process solicited iocb completion |
e59058c4 JS |
2227 | * @phba: Pointer to HBA context object. |
2228 | * @pring: Pointer to driver SLI ring object. | |
2229 | * @saveq: Pointer to the response iocb to be processed. | |
2230 | * | |
2231 | * This function is called by the ring event handler for non-fcp | |
2232 | * rings when there is a new response iocb in the response ring. | |
2233 | * The caller is not required to hold any locks. This function | |
2234 | * gets the command iocb associated with the response iocb and | |
2235 | * calls the completion handler for the command iocb. If there | |
2236 | * is no completion handler, the function will free the resources | |
2237 | * associated with command iocb. If the response iocb is for | |
2238 | * an already aborted command iocb, the status of the completion | |
2239 | * is changed to IOSTAT_LOCAL_REJECT/IOERR_SLI_ABORTED. | |
2240 | * This function always returns 1. | |
2241 | **/ | |
dea3101e | 2242 | static int |
2e0fef85 | 2243 | lpfc_sli_process_sol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, |
dea3101e | 2244 | struct lpfc_iocbq *saveq) |
2245 | { | |
2e0fef85 | 2246 | struct lpfc_iocbq *cmdiocbp; |
dea3101e | 2247 | int rc = 1; |
2248 | unsigned long iflag; | |
2249 | ||
2250 | /* Based on the iotag field, get the cmd IOCB from the txcmplq */ | |
2e0fef85 | 2251 | spin_lock_irqsave(&phba->hbalock, iflag); |
604a3e30 | 2252 | cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring, saveq); |
2e0fef85 JS |
2253 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
2254 | ||
dea3101e | 2255 | if (cmdiocbp) { |
2256 | if (cmdiocbp->iocb_cmpl) { | |
ea2151b4 JS |
2257 | /* |
2258 | * If an ELS command failed send an event to mgmt | |
2259 | * application. | |
2260 | */ | |
2261 | if (saveq->iocb.ulpStatus && | |
2262 | (pring->ringno == LPFC_ELS_RING) && | |
2263 | (cmdiocbp->iocb.ulpCommand == | |
2264 | CMD_ELS_REQUEST64_CR)) | |
2265 | lpfc_send_els_failure_event(phba, | |
2266 | cmdiocbp, saveq); | |
2267 | ||
dea3101e | 2268 | /* |
2269 | * Post all ELS completions to the worker thread. | |
2270 | * All other are passed to the completion callback. | |
2271 | */ | |
2272 | if (pring->ringno == LPFC_ELS_RING) { | |
341af102 JS |
2273 | if ((phba->sli_rev < LPFC_SLI_REV4) && |
2274 | (cmdiocbp->iocb_flag & | |
2275 | LPFC_DRIVER_ABORTED)) { | |
2276 | spin_lock_irqsave(&phba->hbalock, | |
2277 | iflag); | |
07951076 JS |
2278 | cmdiocbp->iocb_flag &= |
2279 | ~LPFC_DRIVER_ABORTED; | |
341af102 JS |
2280 | spin_unlock_irqrestore(&phba->hbalock, |
2281 | iflag); | |
07951076 JS |
2282 | saveq->iocb.ulpStatus = |
2283 | IOSTAT_LOCAL_REJECT; | |
2284 | saveq->iocb.un.ulpWord[4] = | |
2285 | IOERR_SLI_ABORTED; | |
0ff10d46 JS |
2286 | |
2287 | /* Firmware could still be in progress | |
2288 | * of DMAing payload, so don't free data | |
2289 | * buffer till after a hbeat. | |
2290 | */ | |
341af102 JS |
2291 | spin_lock_irqsave(&phba->hbalock, |
2292 | iflag); | |
0ff10d46 | 2293 | saveq->iocb_flag |= LPFC_DELAY_MEM_FREE; |
341af102 JS |
2294 | spin_unlock_irqrestore(&phba->hbalock, |
2295 | iflag); | |
2296 | } | |
0f65ff68 JS |
2297 | if (phba->sli_rev == LPFC_SLI_REV4) { |
2298 | if (saveq->iocb_flag & | |
2299 | LPFC_EXCHANGE_BUSY) { | |
2300 | /* Set cmdiocb flag for the | |
2301 | * exchange busy so sgl (xri) | |
2302 | * will not be released until | |
2303 | * the abort xri is received | |
2304 | * from hba. | |
2305 | */ | |
2306 | spin_lock_irqsave( | |
2307 | &phba->hbalock, iflag); | |
2308 | cmdiocbp->iocb_flag |= | |
2309 | LPFC_EXCHANGE_BUSY; | |
2310 | spin_unlock_irqrestore( | |
2311 | &phba->hbalock, iflag); | |
2312 | } | |
2313 | if (cmdiocbp->iocb_flag & | |
2314 | LPFC_DRIVER_ABORTED) { | |
2315 | /* | |
2316 | * Clear LPFC_DRIVER_ABORTED | |
2317 | * bit in case it was driver | |
2318 | * initiated abort. | |
2319 | */ | |
2320 | spin_lock_irqsave( | |
2321 | &phba->hbalock, iflag); | |
2322 | cmdiocbp->iocb_flag &= | |
2323 | ~LPFC_DRIVER_ABORTED; | |
2324 | spin_unlock_irqrestore( | |
2325 | &phba->hbalock, iflag); | |
2326 | cmdiocbp->iocb.ulpStatus = | |
2327 | IOSTAT_LOCAL_REJECT; | |
2328 | cmdiocbp->iocb.un.ulpWord[4] = | |
2329 | IOERR_ABORT_REQUESTED; | |
2330 | /* | |
2331 | * For SLI4, irsiocb contains | |
2332 | * NO_XRI in sli_xritag, it | |
2333 | * shall not affect releasing | |
2334 | * sgl (xri) process. | |
2335 | */ | |
2336 | saveq->iocb.ulpStatus = | |
2337 | IOSTAT_LOCAL_REJECT; | |
2338 | saveq->iocb.un.ulpWord[4] = | |
2339 | IOERR_SLI_ABORTED; | |
2340 | spin_lock_irqsave( | |
2341 | &phba->hbalock, iflag); | |
2342 | saveq->iocb_flag |= | |
2343 | LPFC_DELAY_MEM_FREE; | |
2344 | spin_unlock_irqrestore( | |
2345 | &phba->hbalock, iflag); | |
2346 | } | |
07951076 | 2347 | } |
dea3101e | 2348 | } |
2e0fef85 | 2349 | (cmdiocbp->iocb_cmpl) (phba, cmdiocbp, saveq); |
604a3e30 JB |
2350 | } else |
2351 | lpfc_sli_release_iocbq(phba, cmdiocbp); | |
dea3101e | 2352 | } else { |
2353 | /* | |
2354 | * Unknown initiating command based on the response iotag. | |
2355 | * This could be the case on the ELS ring because of | |
2356 | * lpfc_els_abort(). | |
2357 | */ | |
2358 | if (pring->ringno != LPFC_ELS_RING) { | |
2359 | /* | |
2360 | * Ring <ringno> handler: unexpected completion IoTag | |
2361 | * <IoTag> | |
2362 | */ | |
a257bf90 | 2363 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, |
e8b62011 JS |
2364 | "0322 Ring %d handler: " |
2365 | "unexpected completion IoTag x%x " | |
2366 | "Data: x%x x%x x%x x%x\n", | |
2367 | pring->ringno, | |
2368 | saveq->iocb.ulpIoTag, | |
2369 | saveq->iocb.ulpStatus, | |
2370 | saveq->iocb.un.ulpWord[4], | |
2371 | saveq->iocb.ulpCommand, | |
2372 | saveq->iocb.ulpContext); | |
dea3101e | 2373 | } |
2374 | } | |
68876920 | 2375 | |
dea3101e | 2376 | return rc; |
2377 | } | |
2378 | ||
e59058c4 | 2379 | /** |
3621a710 | 2380 | * lpfc_sli_rsp_pointers_error - Response ring pointer error handler |
e59058c4 JS |
2381 | * @phba: Pointer to HBA context object. |
2382 | * @pring: Pointer to driver SLI ring object. | |
2383 | * | |
2384 | * This function is called from the iocb ring event handlers when | |
2385 | * put pointer is ahead of the get pointer for a ring. This function signal | |
2386 | * an error attention condition to the worker thread and the worker | |
2387 | * thread will transition the HBA to offline state. | |
2388 | **/ | |
2e0fef85 JS |
2389 | static void |
2390 | lpfc_sli_rsp_pointers_error(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) | |
875fbdfe | 2391 | { |
34b02dcd | 2392 | struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno]; |
875fbdfe | 2393 | /* |
025dfdaf | 2394 | * Ring <ringno> handler: portRspPut <portRspPut> is bigger than |
875fbdfe JSEC |
2395 | * rsp ring <portRspMax> |
2396 | */ | |
2397 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
e8b62011 | 2398 | "0312 Ring %d handler: portRspPut %d " |
025dfdaf | 2399 | "is bigger than rsp ring %d\n", |
e8b62011 | 2400 | pring->ringno, le32_to_cpu(pgp->rspPutInx), |
875fbdfe JSEC |
2401 | pring->numRiocb); |
2402 | ||
2e0fef85 | 2403 | phba->link_state = LPFC_HBA_ERROR; |
875fbdfe JSEC |
2404 | |
2405 | /* | |
2406 | * All error attention handlers are posted to | |
2407 | * worker thread | |
2408 | */ | |
2409 | phba->work_ha |= HA_ERATT; | |
2410 | phba->work_hs = HS_FFER3; | |
92d7f7b0 | 2411 | |
5e9d9b82 | 2412 | lpfc_worker_wake_up(phba); |
875fbdfe JSEC |
2413 | |
2414 | return; | |
2415 | } | |
2416 | ||
9399627f | 2417 | /** |
3621a710 | 2418 | * lpfc_poll_eratt - Error attention polling timer timeout handler |
9399627f JS |
2419 | * @ptr: Pointer to address of HBA context object. |
2420 | * | |
2421 | * This function is invoked by the Error Attention polling timer when the | |
2422 | * timer times out. It will check the SLI Error Attention register for | |
2423 | * possible attention events. If so, it will post an Error Attention event | |
2424 | * and wake up worker thread to process it. Otherwise, it will set up the | |
2425 | * Error Attention polling timer for the next poll. | |
2426 | **/ | |
2427 | void lpfc_poll_eratt(unsigned long ptr) | |
2428 | { | |
2429 | struct lpfc_hba *phba; | |
2430 | uint32_t eratt = 0; | |
2431 | ||
2432 | phba = (struct lpfc_hba *)ptr; | |
2433 | ||
2434 | /* Check chip HA register for error event */ | |
2435 | eratt = lpfc_sli_check_eratt(phba); | |
2436 | ||
2437 | if (eratt) | |
2438 | /* Tell the worker thread there is work to do */ | |
2439 | lpfc_worker_wake_up(phba); | |
2440 | else | |
2441 | /* Restart the timer for next eratt poll */ | |
2442 | mod_timer(&phba->eratt_poll, jiffies + | |
2443 | HZ * LPFC_ERATT_POLL_INTERVAL); | |
2444 | return; | |
2445 | } | |
2446 | ||
875fbdfe | 2447 | |
e59058c4 | 2448 | /** |
3621a710 | 2449 | * lpfc_sli_handle_fast_ring_event - Handle ring events on FCP ring |
e59058c4 JS |
2450 | * @phba: Pointer to HBA context object. |
2451 | * @pring: Pointer to driver SLI ring object. | |
2452 | * @mask: Host attention register mask for this ring. | |
2453 | * | |
2454 | * This function is called from the interrupt context when there is a ring | |
2455 | * event for the fcp ring. The caller does not hold any lock. | |
2456 | * The function processes each response iocb in the response ring until it | |
2457 | * finds an iocb with LE bit set and chains all the iocbs upto the iocb with | |
2458 | * LE bit set. The function will call the completion handler of the command iocb | |
2459 | * if the response iocb indicates a completion for a command iocb or it is | |
2460 | * an abort completion. The function will call lpfc_sli_process_unsol_iocb | |
2461 | * function if this is an unsolicited iocb. | |
dea3101e | 2462 | * This routine presumes LPFC_FCP_RING handling and doesn't bother |
45ed1190 JS |
2463 | * to check it explicitly. |
2464 | */ | |
2465 | int | |
2e0fef85 JS |
2466 | lpfc_sli_handle_fast_ring_event(struct lpfc_hba *phba, |
2467 | struct lpfc_sli_ring *pring, uint32_t mask) | |
dea3101e | 2468 | { |
34b02dcd | 2469 | struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno]; |
dea3101e | 2470 | IOCB_t *irsp = NULL; |
87f6eaff | 2471 | IOCB_t *entry = NULL; |
dea3101e | 2472 | struct lpfc_iocbq *cmdiocbq = NULL; |
2473 | struct lpfc_iocbq rspiocbq; | |
dea3101e | 2474 | uint32_t status; |
2475 | uint32_t portRspPut, portRspMax; | |
2476 | int rc = 1; | |
2477 | lpfc_iocb_type type; | |
2478 | unsigned long iflag; | |
2479 | uint32_t rsp_cmpl = 0; | |
dea3101e | 2480 | |
2e0fef85 | 2481 | spin_lock_irqsave(&phba->hbalock, iflag); |
dea3101e | 2482 | pring->stats.iocb_event++; |
2483 | ||
dea3101e | 2484 | /* |
2485 | * The next available response entry should never exceed the maximum | |
2486 | * entries. If it does, treat it as an adapter hardware error. | |
2487 | */ | |
2488 | portRspMax = pring->numRiocb; | |
2489 | portRspPut = le32_to_cpu(pgp->rspPutInx); | |
2490 | if (unlikely(portRspPut >= portRspMax)) { | |
875fbdfe | 2491 | lpfc_sli_rsp_pointers_error(phba, pring); |
2e0fef85 | 2492 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
dea3101e | 2493 | return 1; |
2494 | } | |
45ed1190 JS |
2495 | if (phba->fcp_ring_in_use) { |
2496 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
2497 | return 1; | |
2498 | } else | |
2499 | phba->fcp_ring_in_use = 1; | |
dea3101e | 2500 | |
2501 | rmb(); | |
2502 | while (pring->rspidx != portRspPut) { | |
87f6eaff JSEC |
2503 | /* |
2504 | * Fetch an entry off the ring and copy it into a local data | |
2505 | * structure. The copy involves a byte-swap since the | |
2506 | * network byte order and pci byte orders are different. | |
2507 | */ | |
ed957684 | 2508 | entry = lpfc_resp_iocb(phba, pring); |
858c9f6c | 2509 | phba->last_completion_time = jiffies; |
875fbdfe JSEC |
2510 | |
2511 | if (++pring->rspidx >= portRspMax) | |
2512 | pring->rspidx = 0; | |
2513 | ||
87f6eaff JSEC |
2514 | lpfc_sli_pcimem_bcopy((uint32_t *) entry, |
2515 | (uint32_t *) &rspiocbq.iocb, | |
ed957684 | 2516 | phba->iocb_rsp_size); |
a4bc3379 | 2517 | INIT_LIST_HEAD(&(rspiocbq.list)); |
87f6eaff JSEC |
2518 | irsp = &rspiocbq.iocb; |
2519 | ||
dea3101e | 2520 | type = lpfc_sli_iocb_cmd_type(irsp->ulpCommand & CMD_IOCB_MASK); |
2521 | pring->stats.iocb_rsp++; | |
2522 | rsp_cmpl++; | |
2523 | ||
2524 | if (unlikely(irsp->ulpStatus)) { | |
92d7f7b0 JS |
2525 | /* |
2526 | * If resource errors reported from HBA, reduce | |
2527 | * queuedepths of the SCSI device. | |
2528 | */ | |
2529 | if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) && | |
2530 | (irsp->un.ulpWord[4] == IOERR_NO_RESOURCES)) { | |
2531 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
3772a991 | 2532 | phba->lpfc_rampdown_queue_depth(phba); |
92d7f7b0 JS |
2533 | spin_lock_irqsave(&phba->hbalock, iflag); |
2534 | } | |
2535 | ||
dea3101e | 2536 | /* Rsp ring <ringno> error: IOCB */ |
2537 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, | |
e8b62011 | 2538 | "0336 Rsp Ring %d error: IOCB Data: " |
92d7f7b0 | 2539 | "x%x x%x x%x x%x x%x x%x x%x x%x\n", |
e8b62011 | 2540 | pring->ringno, |
92d7f7b0 JS |
2541 | irsp->un.ulpWord[0], |
2542 | irsp->un.ulpWord[1], | |
2543 | irsp->un.ulpWord[2], | |
2544 | irsp->un.ulpWord[3], | |
2545 | irsp->un.ulpWord[4], | |
2546 | irsp->un.ulpWord[5], | |
d7c255b2 JS |
2547 | *(uint32_t *)&irsp->un1, |
2548 | *((uint32_t *)&irsp->un1 + 1)); | |
dea3101e | 2549 | } |
2550 | ||
2551 | switch (type) { | |
2552 | case LPFC_ABORT_IOCB: | |
2553 | case LPFC_SOL_IOCB: | |
2554 | /* | |
2555 | * Idle exchange closed via ABTS from port. No iocb | |
2556 | * resources need to be recovered. | |
2557 | */ | |
2558 | if (unlikely(irsp->ulpCommand == CMD_XRI_ABORTED_CX)) { | |
dca9479b | 2559 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, |
e8b62011 | 2560 | "0333 IOCB cmd 0x%x" |
dca9479b | 2561 | " processed. Skipping" |
92d7f7b0 | 2562 | " completion\n", |
dca9479b | 2563 | irsp->ulpCommand); |
dea3101e | 2564 | break; |
2565 | } | |
2566 | ||
604a3e30 JB |
2567 | cmdiocbq = lpfc_sli_iocbq_lookup(phba, pring, |
2568 | &rspiocbq); | |
0f65ff68 JS |
2569 | if (unlikely(!cmdiocbq)) |
2570 | break; | |
2571 | if (cmdiocbq->iocb_flag & LPFC_DRIVER_ABORTED) | |
2572 | cmdiocbq->iocb_flag &= ~LPFC_DRIVER_ABORTED; | |
2573 | if (cmdiocbq->iocb_cmpl) { | |
2574 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
2575 | (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, | |
2576 | &rspiocbq); | |
2577 | spin_lock_irqsave(&phba->hbalock, iflag); | |
2578 | } | |
dea3101e | 2579 | break; |
a4bc3379 | 2580 | case LPFC_UNSOL_IOCB: |
2e0fef85 | 2581 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
a4bc3379 | 2582 | lpfc_sli_process_unsol_iocb(phba, pring, &rspiocbq); |
2e0fef85 | 2583 | spin_lock_irqsave(&phba->hbalock, iflag); |
a4bc3379 | 2584 | break; |
dea3101e | 2585 | default: |
2586 | if (irsp->ulpCommand == CMD_ADAPTER_MSG) { | |
2587 | char adaptermsg[LPFC_MAX_ADPTMSG]; | |
2588 | memset(adaptermsg, 0, LPFC_MAX_ADPTMSG); | |
2589 | memcpy(&adaptermsg[0], (uint8_t *) irsp, | |
2590 | MAX_MSG_DATA); | |
898eb71c JP |
2591 | dev_warn(&((phba->pcidev)->dev), |
2592 | "lpfc%d: %s\n", | |
dea3101e | 2593 | phba->brd_no, adaptermsg); |
2594 | } else { | |
2595 | /* Unknown IOCB command */ | |
2596 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
e8b62011 | 2597 | "0334 Unknown IOCB command " |
92d7f7b0 | 2598 | "Data: x%x, x%x x%x x%x x%x\n", |
e8b62011 | 2599 | type, irsp->ulpCommand, |
92d7f7b0 JS |
2600 | irsp->ulpStatus, |
2601 | irsp->ulpIoTag, | |
2602 | irsp->ulpContext); | |
dea3101e | 2603 | } |
2604 | break; | |
2605 | } | |
2606 | ||
2607 | /* | |
2608 | * The response IOCB has been processed. Update the ring | |
2609 | * pointer in SLIM. If the port response put pointer has not | |
2610 | * been updated, sync the pgp->rspPutInx and fetch the new port | |
2611 | * response put pointer. | |
2612 | */ | |
ed957684 | 2613 | writel(pring->rspidx, &phba->host_gp[pring->ringno].rspGetInx); |
dea3101e | 2614 | |
2615 | if (pring->rspidx == portRspPut) | |
2616 | portRspPut = le32_to_cpu(pgp->rspPutInx); | |
2617 | } | |
2618 | ||
2619 | if ((rsp_cmpl > 0) && (mask & HA_R0RE_REQ)) { | |
2620 | pring->stats.iocb_rsp_full++; | |
2621 | status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4)); | |
2622 | writel(status, phba->CAregaddr); | |
2623 | readl(phba->CAregaddr); | |
2624 | } | |
2625 | if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) { | |
2626 | pring->flag &= ~LPFC_CALL_RING_AVAILABLE; | |
2627 | pring->stats.iocb_cmd_empty++; | |
2628 | ||
2629 | /* Force update of the local copy of cmdGetInx */ | |
2630 | pring->local_getidx = le32_to_cpu(pgp->cmdGetInx); | |
2631 | lpfc_sli_resume_iocb(phba, pring); | |
2632 | ||
2633 | if ((pring->lpfc_sli_cmd_available)) | |
2634 | (pring->lpfc_sli_cmd_available) (phba, pring); | |
2635 | ||
2636 | } | |
2637 | ||
45ed1190 | 2638 | phba->fcp_ring_in_use = 0; |
2e0fef85 | 2639 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
dea3101e | 2640 | return rc; |
2641 | } | |
2642 | ||
e59058c4 | 2643 | /** |
3772a991 JS |
2644 | * lpfc_sli_sp_handle_rspiocb - Handle slow-path response iocb |
2645 | * @phba: Pointer to HBA context object. | |
2646 | * @pring: Pointer to driver SLI ring object. | |
2647 | * @rspiocbp: Pointer to driver response IOCB object. | |
2648 | * | |
2649 | * This function is called from the worker thread when there is a slow-path | |
2650 | * response IOCB to process. This function chains all the response iocbs until | |
2651 | * seeing the iocb with the LE bit set. The function will call | |
2652 | * lpfc_sli_process_sol_iocb function if the response iocb indicates a | |
2653 | * completion of a command iocb. The function will call the | |
2654 | * lpfc_sli_process_unsol_iocb function if this is an unsolicited iocb. | |
2655 | * The function frees the resources or calls the completion handler if this | |
2656 | * iocb is an abort completion. The function returns NULL when the response | |
2657 | * iocb has the LE bit set and all the chained iocbs are processed, otherwise | |
2658 | * this function shall chain the iocb on to the iocb_continueq and return the | |
2659 | * response iocb passed in. | |
2660 | **/ | |
2661 | static struct lpfc_iocbq * | |
2662 | lpfc_sli_sp_handle_rspiocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
2663 | struct lpfc_iocbq *rspiocbp) | |
2664 | { | |
2665 | struct lpfc_iocbq *saveq; | |
2666 | struct lpfc_iocbq *cmdiocbp; | |
2667 | struct lpfc_iocbq *next_iocb; | |
2668 | IOCB_t *irsp = NULL; | |
2669 | uint32_t free_saveq; | |
2670 | uint8_t iocb_cmd_type; | |
2671 | lpfc_iocb_type type; | |
2672 | unsigned long iflag; | |
2673 | int rc; | |
2674 | ||
2675 | spin_lock_irqsave(&phba->hbalock, iflag); | |
2676 | /* First add the response iocb to the countinueq list */ | |
2677 | list_add_tail(&rspiocbp->list, &(pring->iocb_continueq)); | |
2678 | pring->iocb_continueq_cnt++; | |
2679 | ||
2680 | /* Now, determine whetehr the list is completed for processing */ | |
2681 | irsp = &rspiocbp->iocb; | |
2682 | if (irsp->ulpLe) { | |
2683 | /* | |
2684 | * By default, the driver expects to free all resources | |
2685 | * associated with this iocb completion. | |
2686 | */ | |
2687 | free_saveq = 1; | |
2688 | saveq = list_get_first(&pring->iocb_continueq, | |
2689 | struct lpfc_iocbq, list); | |
2690 | irsp = &(saveq->iocb); | |
2691 | list_del_init(&pring->iocb_continueq); | |
2692 | pring->iocb_continueq_cnt = 0; | |
2693 | ||
2694 | pring->stats.iocb_rsp++; | |
2695 | ||
2696 | /* | |
2697 | * If resource errors reported from HBA, reduce | |
2698 | * queuedepths of the SCSI device. | |
2699 | */ | |
2700 | if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) && | |
2701 | (irsp->un.ulpWord[4] == IOERR_NO_RESOURCES)) { | |
2702 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
2703 | phba->lpfc_rampdown_queue_depth(phba); | |
2704 | spin_lock_irqsave(&phba->hbalock, iflag); | |
2705 | } | |
2706 | ||
2707 | if (irsp->ulpStatus) { | |
2708 | /* Rsp ring <ringno> error: IOCB */ | |
2709 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, | |
2710 | "0328 Rsp Ring %d error: " | |
2711 | "IOCB Data: " | |
2712 | "x%x x%x x%x x%x " | |
2713 | "x%x x%x x%x x%x " | |
2714 | "x%x x%x x%x x%x " | |
2715 | "x%x x%x x%x x%x\n", | |
2716 | pring->ringno, | |
2717 | irsp->un.ulpWord[0], | |
2718 | irsp->un.ulpWord[1], | |
2719 | irsp->un.ulpWord[2], | |
2720 | irsp->un.ulpWord[3], | |
2721 | irsp->un.ulpWord[4], | |
2722 | irsp->un.ulpWord[5], | |
2723 | *(((uint32_t *) irsp) + 6), | |
2724 | *(((uint32_t *) irsp) + 7), | |
2725 | *(((uint32_t *) irsp) + 8), | |
2726 | *(((uint32_t *) irsp) + 9), | |
2727 | *(((uint32_t *) irsp) + 10), | |
2728 | *(((uint32_t *) irsp) + 11), | |
2729 | *(((uint32_t *) irsp) + 12), | |
2730 | *(((uint32_t *) irsp) + 13), | |
2731 | *(((uint32_t *) irsp) + 14), | |
2732 | *(((uint32_t *) irsp) + 15)); | |
2733 | } | |
2734 | ||
2735 | /* | |
2736 | * Fetch the IOCB command type and call the correct completion | |
2737 | * routine. Solicited and Unsolicited IOCBs on the ELS ring | |
2738 | * get freed back to the lpfc_iocb_list by the discovery | |
2739 | * kernel thread. | |
2740 | */ | |
2741 | iocb_cmd_type = irsp->ulpCommand & CMD_IOCB_MASK; | |
2742 | type = lpfc_sli_iocb_cmd_type(iocb_cmd_type); | |
2743 | switch (type) { | |
2744 | case LPFC_SOL_IOCB: | |
2745 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
2746 | rc = lpfc_sli_process_sol_iocb(phba, pring, saveq); | |
2747 | spin_lock_irqsave(&phba->hbalock, iflag); | |
2748 | break; | |
2749 | ||
2750 | case LPFC_UNSOL_IOCB: | |
2751 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
2752 | rc = lpfc_sli_process_unsol_iocb(phba, pring, saveq); | |
2753 | spin_lock_irqsave(&phba->hbalock, iflag); | |
2754 | if (!rc) | |
2755 | free_saveq = 0; | |
2756 | break; | |
2757 | ||
2758 | case LPFC_ABORT_IOCB: | |
2759 | cmdiocbp = NULL; | |
2760 | if (irsp->ulpCommand != CMD_XRI_ABORTED_CX) | |
2761 | cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring, | |
2762 | saveq); | |
2763 | if (cmdiocbp) { | |
2764 | /* Call the specified completion routine */ | |
2765 | if (cmdiocbp->iocb_cmpl) { | |
2766 | spin_unlock_irqrestore(&phba->hbalock, | |
2767 | iflag); | |
2768 | (cmdiocbp->iocb_cmpl)(phba, cmdiocbp, | |
2769 | saveq); | |
2770 | spin_lock_irqsave(&phba->hbalock, | |
2771 | iflag); | |
2772 | } else | |
2773 | __lpfc_sli_release_iocbq(phba, | |
2774 | cmdiocbp); | |
2775 | } | |
2776 | break; | |
2777 | ||
2778 | case LPFC_UNKNOWN_IOCB: | |
2779 | if (irsp->ulpCommand == CMD_ADAPTER_MSG) { | |
2780 | char adaptermsg[LPFC_MAX_ADPTMSG]; | |
2781 | memset(adaptermsg, 0, LPFC_MAX_ADPTMSG); | |
2782 | memcpy(&adaptermsg[0], (uint8_t *)irsp, | |
2783 | MAX_MSG_DATA); | |
2784 | dev_warn(&((phba->pcidev)->dev), | |
2785 | "lpfc%d: %s\n", | |
2786 | phba->brd_no, adaptermsg); | |
2787 | } else { | |
2788 | /* Unknown IOCB command */ | |
2789 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
2790 | "0335 Unknown IOCB " | |
2791 | "command Data: x%x " | |
2792 | "x%x x%x x%x\n", | |
2793 | irsp->ulpCommand, | |
2794 | irsp->ulpStatus, | |
2795 | irsp->ulpIoTag, | |
2796 | irsp->ulpContext); | |
2797 | } | |
2798 | break; | |
2799 | } | |
2800 | ||
2801 | if (free_saveq) { | |
2802 | list_for_each_entry_safe(rspiocbp, next_iocb, | |
2803 | &saveq->list, list) { | |
2804 | list_del(&rspiocbp->list); | |
2805 | __lpfc_sli_release_iocbq(phba, rspiocbp); | |
2806 | } | |
2807 | __lpfc_sli_release_iocbq(phba, saveq); | |
2808 | } | |
2809 | rspiocbp = NULL; | |
2810 | } | |
2811 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
2812 | return rspiocbp; | |
2813 | } | |
2814 | ||
2815 | /** | |
2816 | * lpfc_sli_handle_slow_ring_event - Wrapper func for handling slow-path iocbs | |
e59058c4 JS |
2817 | * @phba: Pointer to HBA context object. |
2818 | * @pring: Pointer to driver SLI ring object. | |
2819 | * @mask: Host attention register mask for this ring. | |
2820 | * | |
3772a991 JS |
2821 | * This routine wraps the actual slow_ring event process routine from the |
2822 | * API jump table function pointer from the lpfc_hba struct. | |
e59058c4 | 2823 | **/ |
3772a991 | 2824 | void |
2e0fef85 JS |
2825 | lpfc_sli_handle_slow_ring_event(struct lpfc_hba *phba, |
2826 | struct lpfc_sli_ring *pring, uint32_t mask) | |
3772a991 JS |
2827 | { |
2828 | phba->lpfc_sli_handle_slow_ring_event(phba, pring, mask); | |
2829 | } | |
2830 | ||
2831 | /** | |
2832 | * lpfc_sli_handle_slow_ring_event_s3 - Handle SLI3 ring event for non-FCP rings | |
2833 | * @phba: Pointer to HBA context object. | |
2834 | * @pring: Pointer to driver SLI ring object. | |
2835 | * @mask: Host attention register mask for this ring. | |
2836 | * | |
2837 | * This function is called from the worker thread when there is a ring event | |
2838 | * for non-fcp rings. The caller does not hold any lock. The function will | |
2839 | * remove each response iocb in the response ring and calls the handle | |
2840 | * response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it. | |
2841 | **/ | |
2842 | static void | |
2843 | lpfc_sli_handle_slow_ring_event_s3(struct lpfc_hba *phba, | |
2844 | struct lpfc_sli_ring *pring, uint32_t mask) | |
dea3101e | 2845 | { |
34b02dcd | 2846 | struct lpfc_pgp *pgp; |
dea3101e | 2847 | IOCB_t *entry; |
2848 | IOCB_t *irsp = NULL; | |
2849 | struct lpfc_iocbq *rspiocbp = NULL; | |
dea3101e | 2850 | uint32_t portRspPut, portRspMax; |
dea3101e | 2851 | unsigned long iflag; |
3772a991 | 2852 | uint32_t status; |
dea3101e | 2853 | |
34b02dcd | 2854 | pgp = &phba->port_gp[pring->ringno]; |
2e0fef85 | 2855 | spin_lock_irqsave(&phba->hbalock, iflag); |
dea3101e | 2856 | pring->stats.iocb_event++; |
2857 | ||
dea3101e | 2858 | /* |
2859 | * The next available response entry should never exceed the maximum | |
2860 | * entries. If it does, treat it as an adapter hardware error. | |
2861 | */ | |
2862 | portRspMax = pring->numRiocb; | |
2863 | portRspPut = le32_to_cpu(pgp->rspPutInx); | |
2864 | if (portRspPut >= portRspMax) { | |
2865 | /* | |
025dfdaf | 2866 | * Ring <ringno> handler: portRspPut <portRspPut> is bigger than |
dea3101e | 2867 | * rsp ring <portRspMax> |
2868 | */ | |
ed957684 | 2869 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, |
e8b62011 | 2870 | "0303 Ring %d handler: portRspPut %d " |
025dfdaf | 2871 | "is bigger than rsp ring %d\n", |
e8b62011 | 2872 | pring->ringno, portRspPut, portRspMax); |
dea3101e | 2873 | |
2e0fef85 JS |
2874 | phba->link_state = LPFC_HBA_ERROR; |
2875 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
dea3101e | 2876 | |
2877 | phba->work_hs = HS_FFER3; | |
2878 | lpfc_handle_eratt(phba); | |
2879 | ||
3772a991 | 2880 | return; |
dea3101e | 2881 | } |
2882 | ||
2883 | rmb(); | |
dea3101e | 2884 | while (pring->rspidx != portRspPut) { |
2885 | /* | |
2886 | * Build a completion list and call the appropriate handler. | |
2887 | * The process is to get the next available response iocb, get | |
2888 | * a free iocb from the list, copy the response data into the | |
2889 | * free iocb, insert to the continuation list, and update the | |
2890 | * next response index to slim. This process makes response | |
2891 | * iocb's in the ring available to DMA as fast as possible but | |
2892 | * pays a penalty for a copy operation. Since the iocb is | |
2893 | * only 32 bytes, this penalty is considered small relative to | |
2894 | * the PCI reads for register values and a slim write. When | |
2895 | * the ulpLe field is set, the entire Command has been | |
2896 | * received. | |
2897 | */ | |
ed957684 JS |
2898 | entry = lpfc_resp_iocb(phba, pring); |
2899 | ||
858c9f6c | 2900 | phba->last_completion_time = jiffies; |
2e0fef85 | 2901 | rspiocbp = __lpfc_sli_get_iocbq(phba); |
dea3101e | 2902 | if (rspiocbp == NULL) { |
2903 | printk(KERN_ERR "%s: out of buffers! Failing " | |
cadbd4a5 | 2904 | "completion.\n", __func__); |
dea3101e | 2905 | break; |
2906 | } | |
2907 | ||
ed957684 JS |
2908 | lpfc_sli_pcimem_bcopy(entry, &rspiocbp->iocb, |
2909 | phba->iocb_rsp_size); | |
dea3101e | 2910 | irsp = &rspiocbp->iocb; |
2911 | ||
2912 | if (++pring->rspidx >= portRspMax) | |
2913 | pring->rspidx = 0; | |
2914 | ||
a58cbd52 JS |
2915 | if (pring->ringno == LPFC_ELS_RING) { |
2916 | lpfc_debugfs_slow_ring_trc(phba, | |
2917 | "IOCB rsp ring: wd4:x%08x wd6:x%08x wd7:x%08x", | |
2918 | *(((uint32_t *) irsp) + 4), | |
2919 | *(((uint32_t *) irsp) + 6), | |
2920 | *(((uint32_t *) irsp) + 7)); | |
2921 | } | |
2922 | ||
ed957684 | 2923 | writel(pring->rspidx, &phba->host_gp[pring->ringno].rspGetInx); |
dea3101e | 2924 | |
3772a991 JS |
2925 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
2926 | /* Handle the response IOCB */ | |
2927 | rspiocbp = lpfc_sli_sp_handle_rspiocb(phba, pring, rspiocbp); | |
2928 | spin_lock_irqsave(&phba->hbalock, iflag); | |
dea3101e | 2929 | |
2930 | /* | |
2931 | * If the port response put pointer has not been updated, sync | |
2932 | * the pgp->rspPutInx in the MAILBOX_tand fetch the new port | |
2933 | * response put pointer. | |
2934 | */ | |
2935 | if (pring->rspidx == portRspPut) { | |
2936 | portRspPut = le32_to_cpu(pgp->rspPutInx); | |
2937 | } | |
2938 | } /* while (pring->rspidx != portRspPut) */ | |
2939 | ||
92d7f7b0 | 2940 | if ((rspiocbp != NULL) && (mask & HA_R0RE_REQ)) { |
dea3101e | 2941 | /* At least one response entry has been freed */ |
2942 | pring->stats.iocb_rsp_full++; | |
2943 | /* SET RxRE_RSP in Chip Att register */ | |
2944 | status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4)); | |
2945 | writel(status, phba->CAregaddr); | |
2946 | readl(phba->CAregaddr); /* flush */ | |
2947 | } | |
2948 | if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) { | |
2949 | pring->flag &= ~LPFC_CALL_RING_AVAILABLE; | |
2950 | pring->stats.iocb_cmd_empty++; | |
2951 | ||
2952 | /* Force update of the local copy of cmdGetInx */ | |
2953 | pring->local_getidx = le32_to_cpu(pgp->cmdGetInx); | |
2954 | lpfc_sli_resume_iocb(phba, pring); | |
2955 | ||
2956 | if ((pring->lpfc_sli_cmd_available)) | |
2957 | (pring->lpfc_sli_cmd_available) (phba, pring); | |
2958 | ||
2959 | } | |
2960 | ||
2e0fef85 | 2961 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
3772a991 | 2962 | return; |
dea3101e | 2963 | } |
2964 | ||
4f774513 JS |
2965 | /** |
2966 | * lpfc_sli_handle_slow_ring_event_s4 - Handle SLI4 slow-path els events | |
2967 | * @phba: Pointer to HBA context object. | |
2968 | * @pring: Pointer to driver SLI ring object. | |
2969 | * @mask: Host attention register mask for this ring. | |
2970 | * | |
2971 | * This function is called from the worker thread when there is a pending | |
2972 | * ELS response iocb on the driver internal slow-path response iocb worker | |
2973 | * queue. The caller does not hold any lock. The function will remove each | |
2974 | * response iocb from the response worker queue and calls the handle | |
2975 | * response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it. | |
2976 | **/ | |
2977 | static void | |
2978 | lpfc_sli_handle_slow_ring_event_s4(struct lpfc_hba *phba, | |
2979 | struct lpfc_sli_ring *pring, uint32_t mask) | |
2980 | { | |
2981 | struct lpfc_iocbq *irspiocbq; | |
4d9ab994 JS |
2982 | struct hbq_dmabuf *dmabuf; |
2983 | struct lpfc_cq_event *cq_event; | |
4f774513 JS |
2984 | unsigned long iflag; |
2985 | ||
45ed1190 JS |
2986 | spin_lock_irqsave(&phba->hbalock, iflag); |
2987 | phba->hba_flag &= ~HBA_SP_QUEUE_EVT; | |
2988 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
2989 | while (!list_empty(&phba->sli4_hba.sp_queue_event)) { | |
4f774513 JS |
2990 | /* Get the response iocb from the head of work queue */ |
2991 | spin_lock_irqsave(&phba->hbalock, iflag); | |
45ed1190 | 2992 | list_remove_head(&phba->sli4_hba.sp_queue_event, |
4d9ab994 | 2993 | cq_event, struct lpfc_cq_event, list); |
4f774513 | 2994 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
4d9ab994 JS |
2995 | |
2996 | switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) { | |
2997 | case CQE_CODE_COMPL_WQE: | |
2998 | irspiocbq = container_of(cq_event, struct lpfc_iocbq, | |
2999 | cq_event); | |
45ed1190 JS |
3000 | /* Translate ELS WCQE to response IOCBQ */ |
3001 | irspiocbq = lpfc_sli4_els_wcqe_to_rspiocbq(phba, | |
3002 | irspiocbq); | |
3003 | if (irspiocbq) | |
3004 | lpfc_sli_sp_handle_rspiocb(phba, pring, | |
3005 | irspiocbq); | |
4d9ab994 JS |
3006 | break; |
3007 | case CQE_CODE_RECEIVE: | |
3008 | dmabuf = container_of(cq_event, struct hbq_dmabuf, | |
3009 | cq_event); | |
3010 | lpfc_sli4_handle_received_buffer(phba, dmabuf); | |
3011 | break; | |
3012 | default: | |
3013 | break; | |
3014 | } | |
4f774513 JS |
3015 | } |
3016 | } | |
3017 | ||
e59058c4 | 3018 | /** |
3621a710 | 3019 | * lpfc_sli_abort_iocb_ring - Abort all iocbs in the ring |
e59058c4 JS |
3020 | * @phba: Pointer to HBA context object. |
3021 | * @pring: Pointer to driver SLI ring object. | |
3022 | * | |
3023 | * This function aborts all iocbs in the given ring and frees all the iocb | |
3024 | * objects in txq. This function issues an abort iocb for all the iocb commands | |
3025 | * in txcmplq. The iocbs in the txcmplq is not guaranteed to complete before | |
3026 | * the return of this function. The caller is not required to hold any locks. | |
3027 | **/ | |
2e0fef85 | 3028 | void |
dea3101e | 3029 | lpfc_sli_abort_iocb_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) |
3030 | { | |
2534ba75 | 3031 | LIST_HEAD(completions); |
dea3101e | 3032 | struct lpfc_iocbq *iocb, *next_iocb; |
dea3101e | 3033 | |
92d7f7b0 JS |
3034 | if (pring->ringno == LPFC_ELS_RING) { |
3035 | lpfc_fabric_abort_hba(phba); | |
3036 | } | |
3037 | ||
dea3101e | 3038 | /* Error everything on txq and txcmplq |
3039 | * First do the txq. | |
3040 | */ | |
2e0fef85 | 3041 | spin_lock_irq(&phba->hbalock); |
2534ba75 | 3042 | list_splice_init(&pring->txq, &completions); |
dea3101e | 3043 | pring->txq_cnt = 0; |
dea3101e | 3044 | |
3045 | /* Next issue ABTS for everything on the txcmplq */ | |
2534ba75 JS |
3046 | list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) |
3047 | lpfc_sli_issue_abort_iotag(phba, pring, iocb); | |
dea3101e | 3048 | |
2e0fef85 | 3049 | spin_unlock_irq(&phba->hbalock); |
dea3101e | 3050 | |
a257bf90 JS |
3051 | /* Cancel all the IOCBs from the completions list */ |
3052 | lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, | |
3053 | IOERR_SLI_ABORTED); | |
dea3101e | 3054 | } |
3055 | ||
a8e497d5 | 3056 | /** |
3621a710 | 3057 | * lpfc_sli_flush_fcp_rings - flush all iocbs in the fcp ring |
a8e497d5 JS |
3058 | * @phba: Pointer to HBA context object. |
3059 | * | |
3060 | * This function flushes all iocbs in the fcp ring and frees all the iocb | |
3061 | * objects in txq and txcmplq. This function will not issue abort iocbs | |
3062 | * for all the iocb commands in txcmplq, they will just be returned with | |
3063 | * IOERR_SLI_DOWN. This function is invoked with EEH when device's PCI | |
3064 | * slot has been permanently disabled. | |
3065 | **/ | |
3066 | void | |
3067 | lpfc_sli_flush_fcp_rings(struct lpfc_hba *phba) | |
3068 | { | |
3069 | LIST_HEAD(txq); | |
3070 | LIST_HEAD(txcmplq); | |
a8e497d5 JS |
3071 | struct lpfc_sli *psli = &phba->sli; |
3072 | struct lpfc_sli_ring *pring; | |
3073 | ||
3074 | /* Currently, only one fcp ring */ | |
3075 | pring = &psli->ring[psli->fcp_ring]; | |
3076 | ||
3077 | spin_lock_irq(&phba->hbalock); | |
3078 | /* Retrieve everything on txq */ | |
3079 | list_splice_init(&pring->txq, &txq); | |
3080 | pring->txq_cnt = 0; | |
3081 | ||
3082 | /* Retrieve everything on the txcmplq */ | |
3083 | list_splice_init(&pring->txcmplq, &txcmplq); | |
3084 | pring->txcmplq_cnt = 0; | |
3085 | spin_unlock_irq(&phba->hbalock); | |
3086 | ||
3087 | /* Flush the txq */ | |
a257bf90 JS |
3088 | lpfc_sli_cancel_iocbs(phba, &txq, IOSTAT_LOCAL_REJECT, |
3089 | IOERR_SLI_DOWN); | |
a8e497d5 JS |
3090 | |
3091 | /* Flush the txcmpq */ | |
a257bf90 JS |
3092 | lpfc_sli_cancel_iocbs(phba, &txcmplq, IOSTAT_LOCAL_REJECT, |
3093 | IOERR_SLI_DOWN); | |
a8e497d5 JS |
3094 | } |
3095 | ||
e59058c4 | 3096 | /** |
3772a991 | 3097 | * lpfc_sli_brdready_s3 - Check for sli3 host ready status |
e59058c4 JS |
3098 | * @phba: Pointer to HBA context object. |
3099 | * @mask: Bit mask to be checked. | |
3100 | * | |
3101 | * This function reads the host status register and compares | |
3102 | * with the provided bit mask to check if HBA completed | |
3103 | * the restart. This function will wait in a loop for the | |
3104 | * HBA to complete restart. If the HBA does not restart within | |
3105 | * 15 iterations, the function will reset the HBA again. The | |
3106 | * function returns 1 when HBA fail to restart otherwise returns | |
3107 | * zero. | |
3108 | **/ | |
3772a991 JS |
3109 | static int |
3110 | lpfc_sli_brdready_s3(struct lpfc_hba *phba, uint32_t mask) | |
dea3101e | 3111 | { |
41415862 JW |
3112 | uint32_t status; |
3113 | int i = 0; | |
3114 | int retval = 0; | |
dea3101e | 3115 | |
41415862 JW |
3116 | /* Read the HBA Host Status Register */ |
3117 | status = readl(phba->HSregaddr); | |
dea3101e | 3118 | |
41415862 JW |
3119 | /* |
3120 | * Check status register every 100ms for 5 retries, then every | |
3121 | * 500ms for 5, then every 2.5 sec for 5, then reset board and | |
3122 | * every 2.5 sec for 4. | |
3123 | * Break our of the loop if errors occurred during init. | |
3124 | */ | |
3125 | while (((status & mask) != mask) && | |
3126 | !(status & HS_FFERM) && | |
3127 | i++ < 20) { | |
dea3101e | 3128 | |
41415862 JW |
3129 | if (i <= 5) |
3130 | msleep(10); | |
3131 | else if (i <= 10) | |
3132 | msleep(500); | |
3133 | else | |
3134 | msleep(2500); | |
dea3101e | 3135 | |
41415862 | 3136 | if (i == 15) { |
2e0fef85 | 3137 | /* Do post */ |
92d7f7b0 | 3138 | phba->pport->port_state = LPFC_VPORT_UNKNOWN; |
41415862 JW |
3139 | lpfc_sli_brdrestart(phba); |
3140 | } | |
3141 | /* Read the HBA Host Status Register */ | |
3142 | status = readl(phba->HSregaddr); | |
3143 | } | |
dea3101e | 3144 | |
41415862 JW |
3145 | /* Check to see if any errors occurred during init */ |
3146 | if ((status & HS_FFERM) || (i >= 20)) { | |
e40a02c1 JS |
3147 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
3148 | "2751 Adapter failed to restart, " | |
3149 | "status reg x%x, FW Data: A8 x%x AC x%x\n", | |
3150 | status, | |
3151 | readl(phba->MBslimaddr + 0xa8), | |
3152 | readl(phba->MBslimaddr + 0xac)); | |
2e0fef85 | 3153 | phba->link_state = LPFC_HBA_ERROR; |
41415862 | 3154 | retval = 1; |
dea3101e | 3155 | } |
dea3101e | 3156 | |
41415862 JW |
3157 | return retval; |
3158 | } | |
dea3101e | 3159 | |
da0436e9 JS |
3160 | /** |
3161 | * lpfc_sli_brdready_s4 - Check for sli4 host ready status | |
3162 | * @phba: Pointer to HBA context object. | |
3163 | * @mask: Bit mask to be checked. | |
3164 | * | |
3165 | * This function checks the host status register to check if HBA is | |
3166 | * ready. This function will wait in a loop for the HBA to be ready | |
3167 | * If the HBA is not ready , the function will will reset the HBA PCI | |
3168 | * function again. The function returns 1 when HBA fail to be ready | |
3169 | * otherwise returns zero. | |
3170 | **/ | |
3171 | static int | |
3172 | lpfc_sli_brdready_s4(struct lpfc_hba *phba, uint32_t mask) | |
3173 | { | |
3174 | uint32_t status; | |
3175 | int retval = 0; | |
3176 | ||
3177 | /* Read the HBA Host Status Register */ | |
3178 | status = lpfc_sli4_post_status_check(phba); | |
3179 | ||
3180 | if (status) { | |
3181 | phba->pport->port_state = LPFC_VPORT_UNKNOWN; | |
3182 | lpfc_sli_brdrestart(phba); | |
3183 | status = lpfc_sli4_post_status_check(phba); | |
3184 | } | |
3185 | ||
3186 | /* Check to see if any errors occurred during init */ | |
3187 | if (status) { | |
3188 | phba->link_state = LPFC_HBA_ERROR; | |
3189 | retval = 1; | |
3190 | } else | |
3191 | phba->sli4_hba.intr_enable = 0; | |
3192 | ||
3193 | return retval; | |
3194 | } | |
3195 | ||
3196 | /** | |
3197 | * lpfc_sli_brdready - Wrapper func for checking the hba readyness | |
3198 | * @phba: Pointer to HBA context object. | |
3199 | * @mask: Bit mask to be checked. | |
3200 | * | |
3201 | * This routine wraps the actual SLI3 or SLI4 hba readyness check routine | |
3202 | * from the API jump table function pointer from the lpfc_hba struct. | |
3203 | **/ | |
3204 | int | |
3205 | lpfc_sli_brdready(struct lpfc_hba *phba, uint32_t mask) | |
3206 | { | |
3207 | return phba->lpfc_sli_brdready(phba, mask); | |
3208 | } | |
3209 | ||
9290831f JS |
3210 | #define BARRIER_TEST_PATTERN (0xdeadbeef) |
3211 | ||
e59058c4 | 3212 | /** |
3621a710 | 3213 | * lpfc_reset_barrier - Make HBA ready for HBA reset |
e59058c4 JS |
3214 | * @phba: Pointer to HBA context object. |
3215 | * | |
3216 | * This function is called before resetting an HBA. This | |
3217 | * function requests HBA to quiesce DMAs before a reset. | |
3218 | **/ | |
2e0fef85 | 3219 | void lpfc_reset_barrier(struct lpfc_hba *phba) |
9290831f | 3220 | { |
65a29c16 JS |
3221 | uint32_t __iomem *resp_buf; |
3222 | uint32_t __iomem *mbox_buf; | |
9290831f JS |
3223 | volatile uint32_t mbox; |
3224 | uint32_t hc_copy; | |
3225 | int i; | |
3226 | uint8_t hdrtype; | |
3227 | ||
3228 | pci_read_config_byte(phba->pcidev, PCI_HEADER_TYPE, &hdrtype); | |
3229 | if (hdrtype != 0x80 || | |
3230 | (FC_JEDEC_ID(phba->vpd.rev.biuRev) != HELIOS_JEDEC_ID && | |
3231 | FC_JEDEC_ID(phba->vpd.rev.biuRev) != THOR_JEDEC_ID)) | |
3232 | return; | |
3233 | ||
3234 | /* | |
3235 | * Tell the other part of the chip to suspend temporarily all | |
3236 | * its DMA activity. | |
3237 | */ | |
65a29c16 | 3238 | resp_buf = phba->MBslimaddr; |
9290831f JS |
3239 | |
3240 | /* Disable the error attention */ | |
3241 | hc_copy = readl(phba->HCregaddr); | |
3242 | writel((hc_copy & ~HC_ERINT_ENA), phba->HCregaddr); | |
3243 | readl(phba->HCregaddr); /* flush */ | |
2e0fef85 | 3244 | phba->link_flag |= LS_IGNORE_ERATT; |
9290831f JS |
3245 | |
3246 | if (readl(phba->HAregaddr) & HA_ERATT) { | |
3247 | /* Clear Chip error bit */ | |
3248 | writel(HA_ERATT, phba->HAregaddr); | |
2e0fef85 | 3249 | phba->pport->stopped = 1; |
9290831f JS |
3250 | } |
3251 | ||
3252 | mbox = 0; | |
3253 | ((MAILBOX_t *)&mbox)->mbxCommand = MBX_KILL_BOARD; | |
3254 | ((MAILBOX_t *)&mbox)->mbxOwner = OWN_CHIP; | |
3255 | ||
3256 | writel(BARRIER_TEST_PATTERN, (resp_buf + 1)); | |
65a29c16 | 3257 | mbox_buf = phba->MBslimaddr; |
9290831f JS |
3258 | writel(mbox, mbox_buf); |
3259 | ||
3260 | for (i = 0; | |
3261 | readl(resp_buf + 1) != ~(BARRIER_TEST_PATTERN) && i < 50; i++) | |
3262 | mdelay(1); | |
3263 | ||
3264 | if (readl(resp_buf + 1) != ~(BARRIER_TEST_PATTERN)) { | |
f4b4c68f | 3265 | if (phba->sli.sli_flag & LPFC_SLI_ACTIVE || |
2e0fef85 | 3266 | phba->pport->stopped) |
9290831f JS |
3267 | goto restore_hc; |
3268 | else | |
3269 | goto clear_errat; | |
3270 | } | |
3271 | ||
3272 | ((MAILBOX_t *)&mbox)->mbxOwner = OWN_HOST; | |
3273 | for (i = 0; readl(resp_buf) != mbox && i < 500; i++) | |
3274 | mdelay(1); | |
3275 | ||
3276 | clear_errat: | |
3277 | ||
3278 | while (!(readl(phba->HAregaddr) & HA_ERATT) && ++i < 500) | |
3279 | mdelay(1); | |
3280 | ||
3281 | if (readl(phba->HAregaddr) & HA_ERATT) { | |
3282 | writel(HA_ERATT, phba->HAregaddr); | |
2e0fef85 | 3283 | phba->pport->stopped = 1; |
9290831f JS |
3284 | } |
3285 | ||
3286 | restore_hc: | |
2e0fef85 | 3287 | phba->link_flag &= ~LS_IGNORE_ERATT; |
9290831f JS |
3288 | writel(hc_copy, phba->HCregaddr); |
3289 | readl(phba->HCregaddr); /* flush */ | |
3290 | } | |
3291 | ||
e59058c4 | 3292 | /** |
3621a710 | 3293 | * lpfc_sli_brdkill - Issue a kill_board mailbox command |
e59058c4 JS |
3294 | * @phba: Pointer to HBA context object. |
3295 | * | |
3296 | * This function issues a kill_board mailbox command and waits for | |
3297 | * the error attention interrupt. This function is called for stopping | |
3298 | * the firmware processing. The caller is not required to hold any | |
3299 | * locks. This function calls lpfc_hba_down_post function to free | |
3300 | * any pending commands after the kill. The function will return 1 when it | |
3301 | * fails to kill the board else will return 0. | |
3302 | **/ | |
41415862 | 3303 | int |
2e0fef85 | 3304 | lpfc_sli_brdkill(struct lpfc_hba *phba) |
41415862 JW |
3305 | { |
3306 | struct lpfc_sli *psli; | |
3307 | LPFC_MBOXQ_t *pmb; | |
3308 | uint32_t status; | |
3309 | uint32_t ha_copy; | |
3310 | int retval; | |
3311 | int i = 0; | |
dea3101e | 3312 | |
41415862 | 3313 | psli = &phba->sli; |
dea3101e | 3314 | |
41415862 | 3315 | /* Kill HBA */ |
ed957684 | 3316 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, |
e8b62011 JS |
3317 | "0329 Kill HBA Data: x%x x%x\n", |
3318 | phba->pport->port_state, psli->sli_flag); | |
41415862 | 3319 | |
98c9ea5c JS |
3320 | pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
3321 | if (!pmb) | |
41415862 | 3322 | return 1; |
41415862 JW |
3323 | |
3324 | /* Disable the error attention */ | |
2e0fef85 | 3325 | spin_lock_irq(&phba->hbalock); |
41415862 JW |
3326 | status = readl(phba->HCregaddr); |
3327 | status &= ~HC_ERINT_ENA; | |
3328 | writel(status, phba->HCregaddr); | |
3329 | readl(phba->HCregaddr); /* flush */ | |
2e0fef85 JS |
3330 | phba->link_flag |= LS_IGNORE_ERATT; |
3331 | spin_unlock_irq(&phba->hbalock); | |
41415862 JW |
3332 | |
3333 | lpfc_kill_board(phba, pmb); | |
3334 | pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
3335 | retval = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); | |
3336 | ||
3337 | if (retval != MBX_SUCCESS) { | |
3338 | if (retval != MBX_BUSY) | |
3339 | mempool_free(pmb, phba->mbox_mem_pool); | |
e40a02c1 JS |
3340 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, |
3341 | "2752 KILL_BOARD command failed retval %d\n", | |
3342 | retval); | |
2e0fef85 JS |
3343 | spin_lock_irq(&phba->hbalock); |
3344 | phba->link_flag &= ~LS_IGNORE_ERATT; | |
3345 | spin_unlock_irq(&phba->hbalock); | |
41415862 JW |
3346 | return 1; |
3347 | } | |
3348 | ||
f4b4c68f JS |
3349 | spin_lock_irq(&phba->hbalock); |
3350 | psli->sli_flag &= ~LPFC_SLI_ACTIVE; | |
3351 | spin_unlock_irq(&phba->hbalock); | |
9290831f | 3352 | |
41415862 JW |
3353 | mempool_free(pmb, phba->mbox_mem_pool); |
3354 | ||
3355 | /* There is no completion for a KILL_BOARD mbox cmd. Check for an error | |
3356 | * attention every 100ms for 3 seconds. If we don't get ERATT after | |
3357 | * 3 seconds we still set HBA_ERROR state because the status of the | |
3358 | * board is now undefined. | |
3359 | */ | |
3360 | ha_copy = readl(phba->HAregaddr); | |
3361 | ||
3362 | while ((i++ < 30) && !(ha_copy & HA_ERATT)) { | |
3363 | mdelay(100); | |
3364 | ha_copy = readl(phba->HAregaddr); | |
3365 | } | |
3366 | ||
3367 | del_timer_sync(&psli->mbox_tmo); | |
9290831f JS |
3368 | if (ha_copy & HA_ERATT) { |
3369 | writel(HA_ERATT, phba->HAregaddr); | |
2e0fef85 | 3370 | phba->pport->stopped = 1; |
9290831f | 3371 | } |
2e0fef85 | 3372 | spin_lock_irq(&phba->hbalock); |
41415862 | 3373 | psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; |
04c68496 | 3374 | psli->mbox_active = NULL; |
2e0fef85 JS |
3375 | phba->link_flag &= ~LS_IGNORE_ERATT; |
3376 | spin_unlock_irq(&phba->hbalock); | |
41415862 | 3377 | |
41415862 | 3378 | lpfc_hba_down_post(phba); |
2e0fef85 | 3379 | phba->link_state = LPFC_HBA_ERROR; |
41415862 | 3380 | |
2e0fef85 | 3381 | return ha_copy & HA_ERATT ? 0 : 1; |
dea3101e | 3382 | } |
3383 | ||
e59058c4 | 3384 | /** |
3772a991 | 3385 | * lpfc_sli_brdreset - Reset a sli-2 or sli-3 HBA |
e59058c4 JS |
3386 | * @phba: Pointer to HBA context object. |
3387 | * | |
3388 | * This function resets the HBA by writing HC_INITFF to the control | |
3389 | * register. After the HBA resets, this function resets all the iocb ring | |
3390 | * indices. This function disables PCI layer parity checking during | |
3391 | * the reset. | |
3392 | * This function returns 0 always. | |
3393 | * The caller is not required to hold any locks. | |
3394 | **/ | |
41415862 | 3395 | int |
2e0fef85 | 3396 | lpfc_sli_brdreset(struct lpfc_hba *phba) |
dea3101e | 3397 | { |
41415862 | 3398 | struct lpfc_sli *psli; |
dea3101e | 3399 | struct lpfc_sli_ring *pring; |
41415862 | 3400 | uint16_t cfg_value; |
dea3101e | 3401 | int i; |
dea3101e | 3402 | |
41415862 | 3403 | psli = &phba->sli; |
dea3101e | 3404 | |
41415862 JW |
3405 | /* Reset HBA */ |
3406 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
e8b62011 | 3407 | "0325 Reset HBA Data: x%x x%x\n", |
2e0fef85 | 3408 | phba->pport->port_state, psli->sli_flag); |
dea3101e | 3409 | |
3410 | /* perform board reset */ | |
3411 | phba->fc_eventTag = 0; | |
4d9ab994 | 3412 | phba->link_events = 0; |
2e0fef85 JS |
3413 | phba->pport->fc_myDID = 0; |
3414 | phba->pport->fc_prevDID = 0; | |
dea3101e | 3415 | |
41415862 JW |
3416 | /* Turn off parity checking and serr during the physical reset */ |
3417 | pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value); | |
3418 | pci_write_config_word(phba->pcidev, PCI_COMMAND, | |
3419 | (cfg_value & | |
3420 | ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR))); | |
3421 | ||
3772a991 JS |
3422 | psli->sli_flag &= ~(LPFC_SLI_ACTIVE | LPFC_PROCESS_LA); |
3423 | ||
41415862 JW |
3424 | /* Now toggle INITFF bit in the Host Control Register */ |
3425 | writel(HC_INITFF, phba->HCregaddr); | |
3426 | mdelay(1); | |
3427 | readl(phba->HCregaddr); /* flush */ | |
3428 | writel(0, phba->HCregaddr); | |
3429 | readl(phba->HCregaddr); /* flush */ | |
3430 | ||
3431 | /* Restore PCI cmd register */ | |
3432 | pci_write_config_word(phba->pcidev, PCI_COMMAND, cfg_value); | |
dea3101e | 3433 | |
3434 | /* Initialize relevant SLI info */ | |
41415862 JW |
3435 | for (i = 0; i < psli->num_rings; i++) { |
3436 | pring = &psli->ring[i]; | |
dea3101e | 3437 | pring->flag = 0; |
3438 | pring->rspidx = 0; | |
3439 | pring->next_cmdidx = 0; | |
3440 | pring->local_getidx = 0; | |
3441 | pring->cmdidx = 0; | |
3442 | pring->missbufcnt = 0; | |
3443 | } | |
dea3101e | 3444 | |
2e0fef85 | 3445 | phba->link_state = LPFC_WARM_START; |
41415862 JW |
3446 | return 0; |
3447 | } | |
3448 | ||
e59058c4 | 3449 | /** |
da0436e9 JS |
3450 | * lpfc_sli4_brdreset - Reset a sli-4 HBA |
3451 | * @phba: Pointer to HBA context object. | |
3452 | * | |
3453 | * This function resets a SLI4 HBA. This function disables PCI layer parity | |
3454 | * checking during resets the device. The caller is not required to hold | |
3455 | * any locks. | |
3456 | * | |
3457 | * This function returns 0 always. | |
3458 | **/ | |
3459 | int | |
3460 | lpfc_sli4_brdreset(struct lpfc_hba *phba) | |
3461 | { | |
3462 | struct lpfc_sli *psli = &phba->sli; | |
3463 | uint16_t cfg_value; | |
3464 | uint8_t qindx; | |
3465 | ||
3466 | /* Reset HBA */ | |
3467 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
3468 | "0295 Reset HBA Data: x%x x%x\n", | |
3469 | phba->pport->port_state, psli->sli_flag); | |
3470 | ||
3471 | /* perform board reset */ | |
3472 | phba->fc_eventTag = 0; | |
4d9ab994 | 3473 | phba->link_events = 0; |
da0436e9 JS |
3474 | phba->pport->fc_myDID = 0; |
3475 | phba->pport->fc_prevDID = 0; | |
3476 | ||
3477 | /* Turn off parity checking and serr during the physical reset */ | |
3478 | pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value); | |
3479 | pci_write_config_word(phba->pcidev, PCI_COMMAND, | |
3480 | (cfg_value & | |
3481 | ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR))); | |
3482 | ||
3483 | spin_lock_irq(&phba->hbalock); | |
3484 | psli->sli_flag &= ~(LPFC_PROCESS_LA); | |
3485 | phba->fcf.fcf_flag = 0; | |
3486 | /* Clean up the child queue list for the CQs */ | |
3487 | list_del_init(&phba->sli4_hba.mbx_wq->list); | |
3488 | list_del_init(&phba->sli4_hba.els_wq->list); | |
3489 | list_del_init(&phba->sli4_hba.hdr_rq->list); | |
3490 | list_del_init(&phba->sli4_hba.dat_rq->list); | |
3491 | list_del_init(&phba->sli4_hba.mbx_cq->list); | |
3492 | list_del_init(&phba->sli4_hba.els_cq->list); | |
da0436e9 JS |
3493 | for (qindx = 0; qindx < phba->cfg_fcp_wq_count; qindx++) |
3494 | list_del_init(&phba->sli4_hba.fcp_wq[qindx]->list); | |
3495 | for (qindx = 0; qindx < phba->cfg_fcp_eq_count; qindx++) | |
3496 | list_del_init(&phba->sli4_hba.fcp_cq[qindx]->list); | |
3497 | spin_unlock_irq(&phba->hbalock); | |
3498 | ||
3499 | /* Now physically reset the device */ | |
3500 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
3501 | "0389 Performing PCI function reset!\n"); | |
3502 | /* Perform FCoE PCI function reset */ | |
3503 | lpfc_pci_function_reset(phba); | |
3504 | ||
3505 | return 0; | |
3506 | } | |
3507 | ||
3508 | /** | |
3509 | * lpfc_sli_brdrestart_s3 - Restart a sli-3 hba | |
e59058c4 JS |
3510 | * @phba: Pointer to HBA context object. |
3511 | * | |
3512 | * This function is called in the SLI initialization code path to | |
3513 | * restart the HBA. The caller is not required to hold any lock. | |
3514 | * This function writes MBX_RESTART mailbox command to the SLIM and | |
3515 | * resets the HBA. At the end of the function, it calls lpfc_hba_down_post | |
3516 | * function to free any pending commands. The function enables | |
3517 | * POST only during the first initialization. The function returns zero. | |
3518 | * The function does not guarantee completion of MBX_RESTART mailbox | |
3519 | * command before the return of this function. | |
3520 | **/ | |
da0436e9 JS |
3521 | static int |
3522 | lpfc_sli_brdrestart_s3(struct lpfc_hba *phba) | |
41415862 JW |
3523 | { |
3524 | MAILBOX_t *mb; | |
3525 | struct lpfc_sli *psli; | |
41415862 JW |
3526 | volatile uint32_t word0; |
3527 | void __iomem *to_slim; | |
0d878419 | 3528 | uint32_t hba_aer_enabled; |
41415862 | 3529 | |
2e0fef85 | 3530 | spin_lock_irq(&phba->hbalock); |
41415862 | 3531 | |
0d878419 JS |
3532 | /* Take PCIe device Advanced Error Reporting (AER) state */ |
3533 | hba_aer_enabled = phba->hba_flag & HBA_AER_ENABLED; | |
3534 | ||
41415862 JW |
3535 | psli = &phba->sli; |
3536 | ||
3537 | /* Restart HBA */ | |
3538 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
e8b62011 | 3539 | "0337 Restart HBA Data: x%x x%x\n", |
2e0fef85 | 3540 | phba->pport->port_state, psli->sli_flag); |
41415862 JW |
3541 | |
3542 | word0 = 0; | |
3543 | mb = (MAILBOX_t *) &word0; | |
3544 | mb->mbxCommand = MBX_RESTART; | |
3545 | mb->mbxHc = 1; | |
3546 | ||
9290831f JS |
3547 | lpfc_reset_barrier(phba); |
3548 | ||
41415862 JW |
3549 | to_slim = phba->MBslimaddr; |
3550 | writel(*(uint32_t *) mb, to_slim); | |
3551 | readl(to_slim); /* flush */ | |
3552 | ||
3553 | /* Only skip post after fc_ffinit is completed */ | |
eaf15d5b | 3554 | if (phba->pport->port_state) |
41415862 | 3555 | word0 = 1; /* This is really setting up word1 */ |
eaf15d5b | 3556 | else |
41415862 | 3557 | word0 = 0; /* This is really setting up word1 */ |
65a29c16 | 3558 | to_slim = phba->MBslimaddr + sizeof (uint32_t); |
41415862 JW |
3559 | writel(*(uint32_t *) mb, to_slim); |
3560 | readl(to_slim); /* flush */ | |
dea3101e | 3561 | |
41415862 | 3562 | lpfc_sli_brdreset(phba); |
2e0fef85 JS |
3563 | phba->pport->stopped = 0; |
3564 | phba->link_state = LPFC_INIT_START; | |
da0436e9 | 3565 | phba->hba_flag = 0; |
2e0fef85 | 3566 | spin_unlock_irq(&phba->hbalock); |
41415862 | 3567 | |
64ba8818 JS |
3568 | memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets)); |
3569 | psli->stats_start = get_seconds(); | |
3570 | ||
eaf15d5b JS |
3571 | /* Give the INITFF and Post time to settle. */ |
3572 | mdelay(100); | |
41415862 | 3573 | |
0d878419 JS |
3574 | /* Reset HBA AER if it was enabled, note hba_flag was reset above */ |
3575 | if (hba_aer_enabled) | |
3576 | pci_disable_pcie_error_reporting(phba->pcidev); | |
3577 | ||
41415862 | 3578 | lpfc_hba_down_post(phba); |
dea3101e | 3579 | |
3580 | return 0; | |
3581 | } | |
3582 | ||
da0436e9 JS |
3583 | /** |
3584 | * lpfc_sli_brdrestart_s4 - Restart the sli-4 hba | |
3585 | * @phba: Pointer to HBA context object. | |
3586 | * | |
3587 | * This function is called in the SLI initialization code path to restart | |
3588 | * a SLI4 HBA. The caller is not required to hold any lock. | |
3589 | * At the end of the function, it calls lpfc_hba_down_post function to | |
3590 | * free any pending commands. | |
3591 | **/ | |
3592 | static int | |
3593 | lpfc_sli_brdrestart_s4(struct lpfc_hba *phba) | |
3594 | { | |
3595 | struct lpfc_sli *psli = &phba->sli; | |
75baf696 | 3596 | uint32_t hba_aer_enabled; |
da0436e9 JS |
3597 | |
3598 | /* Restart HBA */ | |
3599 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
3600 | "0296 Restart HBA Data: x%x x%x\n", | |
3601 | phba->pport->port_state, psli->sli_flag); | |
3602 | ||
75baf696 JS |
3603 | /* Take PCIe device Advanced Error Reporting (AER) state */ |
3604 | hba_aer_enabled = phba->hba_flag & HBA_AER_ENABLED; | |
3605 | ||
da0436e9 JS |
3606 | lpfc_sli4_brdreset(phba); |
3607 | ||
3608 | spin_lock_irq(&phba->hbalock); | |
3609 | phba->pport->stopped = 0; | |
3610 | phba->link_state = LPFC_INIT_START; | |
3611 | phba->hba_flag = 0; | |
3612 | spin_unlock_irq(&phba->hbalock); | |
3613 | ||
3614 | memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets)); | |
3615 | psli->stats_start = get_seconds(); | |
3616 | ||
75baf696 JS |
3617 | /* Reset HBA AER if it was enabled, note hba_flag was reset above */ |
3618 | if (hba_aer_enabled) | |
3619 | pci_disable_pcie_error_reporting(phba->pcidev); | |
3620 | ||
da0436e9 JS |
3621 | lpfc_hba_down_post(phba); |
3622 | ||
3623 | return 0; | |
3624 | } | |
3625 | ||
3626 | /** | |
3627 | * lpfc_sli_brdrestart - Wrapper func for restarting hba | |
3628 | * @phba: Pointer to HBA context object. | |
3629 | * | |
3630 | * This routine wraps the actual SLI3 or SLI4 hba restart routine from the | |
3631 | * API jump table function pointer from the lpfc_hba struct. | |
3632 | **/ | |
3633 | int | |
3634 | lpfc_sli_brdrestart(struct lpfc_hba *phba) | |
3635 | { | |
3636 | return phba->lpfc_sli_brdrestart(phba); | |
3637 | } | |
3638 | ||
e59058c4 | 3639 | /** |
3621a710 | 3640 | * lpfc_sli_chipset_init - Wait for the restart of the HBA after a restart |
e59058c4 JS |
3641 | * @phba: Pointer to HBA context object. |
3642 | * | |
3643 | * This function is called after a HBA restart to wait for successful | |
3644 | * restart of the HBA. Successful restart of the HBA is indicated by | |
3645 | * HS_FFRDY and HS_MBRDY bits. If the HBA fails to restart even after 15 | |
3646 | * iteration, the function will restart the HBA again. The function returns | |
3647 | * zero if HBA successfully restarted else returns negative error code. | |
3648 | **/ | |
dea3101e | 3649 | static int |
3650 | lpfc_sli_chipset_init(struct lpfc_hba *phba) | |
3651 | { | |
3652 | uint32_t status, i = 0; | |
3653 | ||
3654 | /* Read the HBA Host Status Register */ | |
3655 | status = readl(phba->HSregaddr); | |
3656 | ||
3657 | /* Check status register to see what current state is */ | |
3658 | i = 0; | |
3659 | while ((status & (HS_FFRDY | HS_MBRDY)) != (HS_FFRDY | HS_MBRDY)) { | |
3660 | ||
3661 | /* Check every 100ms for 5 retries, then every 500ms for 5, then | |
3662 | * every 2.5 sec for 5, then reset board and every 2.5 sec for | |
3663 | * 4. | |
3664 | */ | |
3665 | if (i++ >= 20) { | |
3666 | /* Adapter failed to init, timeout, status reg | |
3667 | <status> */ | |
ed957684 | 3668 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
e8b62011 | 3669 | "0436 Adapter failed to init, " |
09372820 JS |
3670 | "timeout, status reg x%x, " |
3671 | "FW Data: A8 x%x AC x%x\n", status, | |
3672 | readl(phba->MBslimaddr + 0xa8), | |
3673 | readl(phba->MBslimaddr + 0xac)); | |
2e0fef85 | 3674 | phba->link_state = LPFC_HBA_ERROR; |
dea3101e | 3675 | return -ETIMEDOUT; |
3676 | } | |
3677 | ||
3678 | /* Check to see if any errors occurred during init */ | |
3679 | if (status & HS_FFERM) { | |
3680 | /* ERROR: During chipset initialization */ | |
3681 | /* Adapter failed to init, chipset, status reg | |
3682 | <status> */ | |
ed957684 | 3683 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
e8b62011 | 3684 | "0437 Adapter failed to init, " |
09372820 JS |
3685 | "chipset, status reg x%x, " |
3686 | "FW Data: A8 x%x AC x%x\n", status, | |
3687 | readl(phba->MBslimaddr + 0xa8), | |
3688 | readl(phba->MBslimaddr + 0xac)); | |
2e0fef85 | 3689 | phba->link_state = LPFC_HBA_ERROR; |
dea3101e | 3690 | return -EIO; |
3691 | } | |
3692 | ||
3693 | if (i <= 5) { | |
3694 | msleep(10); | |
3695 | } else if (i <= 10) { | |
3696 | msleep(500); | |
3697 | } else { | |
3698 | msleep(2500); | |
3699 | } | |
3700 | ||
3701 | if (i == 15) { | |
2e0fef85 | 3702 | /* Do post */ |
92d7f7b0 | 3703 | phba->pport->port_state = LPFC_VPORT_UNKNOWN; |
41415862 | 3704 | lpfc_sli_brdrestart(phba); |
dea3101e | 3705 | } |
3706 | /* Read the HBA Host Status Register */ | |
3707 | status = readl(phba->HSregaddr); | |
3708 | } | |
3709 | ||
3710 | /* Check to see if any errors occurred during init */ | |
3711 | if (status & HS_FFERM) { | |
3712 | /* ERROR: During chipset initialization */ | |
3713 | /* Adapter failed to init, chipset, status reg <status> */ | |
ed957684 | 3714 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
e8b62011 | 3715 | "0438 Adapter failed to init, chipset, " |
09372820 JS |
3716 | "status reg x%x, " |
3717 | "FW Data: A8 x%x AC x%x\n", status, | |
3718 | readl(phba->MBslimaddr + 0xa8), | |
3719 | readl(phba->MBslimaddr + 0xac)); | |
2e0fef85 | 3720 | phba->link_state = LPFC_HBA_ERROR; |
dea3101e | 3721 | return -EIO; |
3722 | } | |
3723 | ||
3724 | /* Clear all interrupt enable conditions */ | |
3725 | writel(0, phba->HCregaddr); | |
3726 | readl(phba->HCregaddr); /* flush */ | |
3727 | ||
3728 | /* setup host attn register */ | |
3729 | writel(0xffffffff, phba->HAregaddr); | |
3730 | readl(phba->HAregaddr); /* flush */ | |
3731 | return 0; | |
3732 | } | |
3733 | ||
e59058c4 | 3734 | /** |
3621a710 | 3735 | * lpfc_sli_hbq_count - Get the number of HBQs to be configured |
e59058c4 JS |
3736 | * |
3737 | * This function calculates and returns the number of HBQs required to be | |
3738 | * configured. | |
3739 | **/ | |
78b2d852 | 3740 | int |
ed957684 JS |
3741 | lpfc_sli_hbq_count(void) |
3742 | { | |
92d7f7b0 | 3743 | return ARRAY_SIZE(lpfc_hbq_defs); |
ed957684 JS |
3744 | } |
3745 | ||
e59058c4 | 3746 | /** |
3621a710 | 3747 | * lpfc_sli_hbq_entry_count - Calculate total number of hbq entries |
e59058c4 JS |
3748 | * |
3749 | * This function adds the number of hbq entries in every HBQ to get | |
3750 | * the total number of hbq entries required for the HBA and returns | |
3751 | * the total count. | |
3752 | **/ | |
ed957684 JS |
3753 | static int |
3754 | lpfc_sli_hbq_entry_count(void) | |
3755 | { | |
3756 | int hbq_count = lpfc_sli_hbq_count(); | |
3757 | int count = 0; | |
3758 | int i; | |
3759 | ||
3760 | for (i = 0; i < hbq_count; ++i) | |
92d7f7b0 | 3761 | count += lpfc_hbq_defs[i]->entry_count; |
ed957684 JS |
3762 | return count; |
3763 | } | |
3764 | ||
e59058c4 | 3765 | /** |
3621a710 | 3766 | * lpfc_sli_hbq_size - Calculate memory required for all hbq entries |
e59058c4 JS |
3767 | * |
3768 | * This function calculates amount of memory required for all hbq entries | |
3769 | * to be configured and returns the total memory required. | |
3770 | **/ | |
dea3101e | 3771 | int |
ed957684 JS |
3772 | lpfc_sli_hbq_size(void) |
3773 | { | |
3774 | return lpfc_sli_hbq_entry_count() * sizeof(struct lpfc_hbq_entry); | |
3775 | } | |
3776 | ||
e59058c4 | 3777 | /** |
3621a710 | 3778 | * lpfc_sli_hbq_setup - configure and initialize HBQs |
e59058c4 JS |
3779 | * @phba: Pointer to HBA context object. |
3780 | * | |
3781 | * This function is called during the SLI initialization to configure | |
3782 | * all the HBQs and post buffers to the HBQ. The caller is not | |
3783 | * required to hold any locks. This function will return zero if successful | |
3784 | * else it will return negative error code. | |
3785 | **/ | |
ed957684 JS |
3786 | static int |
3787 | lpfc_sli_hbq_setup(struct lpfc_hba *phba) | |
3788 | { | |
3789 | int hbq_count = lpfc_sli_hbq_count(); | |
3790 | LPFC_MBOXQ_t *pmb; | |
3791 | MAILBOX_t *pmbox; | |
3792 | uint32_t hbqno; | |
3793 | uint32_t hbq_entry_index; | |
ed957684 | 3794 | |
92d7f7b0 JS |
3795 | /* Get a Mailbox buffer to setup mailbox |
3796 | * commands for HBA initialization | |
3797 | */ | |
ed957684 JS |
3798 | pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
3799 | ||
3800 | if (!pmb) | |
3801 | return -ENOMEM; | |
3802 | ||
04c68496 | 3803 | pmbox = &pmb->u.mb; |
ed957684 JS |
3804 | |
3805 | /* Initialize the struct lpfc_sli_hbq structure for each hbq */ | |
3806 | phba->link_state = LPFC_INIT_MBX_CMDS; | |
3163f725 | 3807 | phba->hbq_in_use = 1; |
ed957684 JS |
3808 | |
3809 | hbq_entry_index = 0; | |
3810 | for (hbqno = 0; hbqno < hbq_count; ++hbqno) { | |
3811 | phba->hbqs[hbqno].next_hbqPutIdx = 0; | |
3812 | phba->hbqs[hbqno].hbqPutIdx = 0; | |
3813 | phba->hbqs[hbqno].local_hbqGetIdx = 0; | |
3814 | phba->hbqs[hbqno].entry_count = | |
92d7f7b0 | 3815 | lpfc_hbq_defs[hbqno]->entry_count; |
51ef4c26 JS |
3816 | lpfc_config_hbq(phba, hbqno, lpfc_hbq_defs[hbqno], |
3817 | hbq_entry_index, pmb); | |
ed957684 JS |
3818 | hbq_entry_index += phba->hbqs[hbqno].entry_count; |
3819 | ||
3820 | if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) { | |
3821 | /* Adapter failed to init, mbxCmd <cmd> CFG_RING, | |
3822 | mbxStatus <status>, ring <num> */ | |
3823 | ||
3824 | lpfc_printf_log(phba, KERN_ERR, | |
92d7f7b0 | 3825 | LOG_SLI | LOG_VPORT, |
e8b62011 | 3826 | "1805 Adapter failed to init. " |
ed957684 | 3827 | "Data: x%x x%x x%x\n", |
e8b62011 | 3828 | pmbox->mbxCommand, |
ed957684 JS |
3829 | pmbox->mbxStatus, hbqno); |
3830 | ||
3831 | phba->link_state = LPFC_HBA_ERROR; | |
3832 | mempool_free(pmb, phba->mbox_mem_pool); | |
6e7288d9 | 3833 | return -ENXIO; |
ed957684 JS |
3834 | } |
3835 | } | |
3836 | phba->hbq_count = hbq_count; | |
3837 | ||
ed957684 JS |
3838 | mempool_free(pmb, phba->mbox_mem_pool); |
3839 | ||
92d7f7b0 | 3840 | /* Initially populate or replenish the HBQs */ |
d7c255b2 JS |
3841 | for (hbqno = 0; hbqno < hbq_count; ++hbqno) |
3842 | lpfc_sli_hbqbuf_init_hbqs(phba, hbqno); | |
ed957684 JS |
3843 | return 0; |
3844 | } | |
3845 | ||
4f774513 JS |
3846 | /** |
3847 | * lpfc_sli4_rb_setup - Initialize and post RBs to HBA | |
3848 | * @phba: Pointer to HBA context object. | |
3849 | * | |
3850 | * This function is called during the SLI initialization to configure | |
3851 | * all the HBQs and post buffers to the HBQ. The caller is not | |
3852 | * required to hold any locks. This function will return zero if successful | |
3853 | * else it will return negative error code. | |
3854 | **/ | |
3855 | static int | |
3856 | lpfc_sli4_rb_setup(struct lpfc_hba *phba) | |
3857 | { | |
3858 | phba->hbq_in_use = 1; | |
3859 | phba->hbqs[0].entry_count = lpfc_hbq_defs[0]->entry_count; | |
3860 | phba->hbq_count = 1; | |
3861 | /* Initially populate or replenish the HBQs */ | |
3862 | lpfc_sli_hbqbuf_init_hbqs(phba, 0); | |
3863 | return 0; | |
3864 | } | |
3865 | ||
e59058c4 | 3866 | /** |
3621a710 | 3867 | * lpfc_sli_config_port - Issue config port mailbox command |
e59058c4 JS |
3868 | * @phba: Pointer to HBA context object. |
3869 | * @sli_mode: sli mode - 2/3 | |
3870 | * | |
3871 | * This function is called by the sli intialization code path | |
3872 | * to issue config_port mailbox command. This function restarts the | |
3873 | * HBA firmware and issues a config_port mailbox command to configure | |
3874 | * the SLI interface in the sli mode specified by sli_mode | |
3875 | * variable. The caller is not required to hold any locks. | |
3876 | * The function returns 0 if successful, else returns negative error | |
3877 | * code. | |
3878 | **/ | |
9399627f JS |
3879 | int |
3880 | lpfc_sli_config_port(struct lpfc_hba *phba, int sli_mode) | |
dea3101e | 3881 | { |
3882 | LPFC_MBOXQ_t *pmb; | |
3883 | uint32_t resetcount = 0, rc = 0, done = 0; | |
3884 | ||
3885 | pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
3886 | if (!pmb) { | |
2e0fef85 | 3887 | phba->link_state = LPFC_HBA_ERROR; |
dea3101e | 3888 | return -ENOMEM; |
3889 | } | |
3890 | ||
ed957684 | 3891 | phba->sli_rev = sli_mode; |
dea3101e | 3892 | while (resetcount < 2 && !done) { |
2e0fef85 | 3893 | spin_lock_irq(&phba->hbalock); |
1c067a42 | 3894 | phba->sli.sli_flag |= LPFC_SLI_MBOX_ACTIVE; |
2e0fef85 | 3895 | spin_unlock_irq(&phba->hbalock); |
92d7f7b0 | 3896 | phba->pport->port_state = LPFC_VPORT_UNKNOWN; |
41415862 | 3897 | lpfc_sli_brdrestart(phba); |
dea3101e | 3898 | rc = lpfc_sli_chipset_init(phba); |
3899 | if (rc) | |
3900 | break; | |
3901 | ||
2e0fef85 | 3902 | spin_lock_irq(&phba->hbalock); |
1c067a42 | 3903 | phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; |
2e0fef85 | 3904 | spin_unlock_irq(&phba->hbalock); |
dea3101e | 3905 | resetcount++; |
3906 | ||
ed957684 JS |
3907 | /* Call pre CONFIG_PORT mailbox command initialization. A |
3908 | * value of 0 means the call was successful. Any other | |
3909 | * nonzero value is a failure, but if ERESTART is returned, | |
3910 | * the driver may reset the HBA and try again. | |
3911 | */ | |
dea3101e | 3912 | rc = lpfc_config_port_prep(phba); |
3913 | if (rc == -ERESTART) { | |
ed957684 | 3914 | phba->link_state = LPFC_LINK_UNKNOWN; |
dea3101e | 3915 | continue; |
34b02dcd | 3916 | } else if (rc) |
dea3101e | 3917 | break; |
2e0fef85 | 3918 | phba->link_state = LPFC_INIT_MBX_CMDS; |
dea3101e | 3919 | lpfc_config_port(phba, pmb); |
3920 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); | |
34b02dcd JS |
3921 | phba->sli3_options &= ~(LPFC_SLI3_NPIV_ENABLED | |
3922 | LPFC_SLI3_HBQ_ENABLED | | |
3923 | LPFC_SLI3_CRP_ENABLED | | |
bc73905a JS |
3924 | LPFC_SLI3_BG_ENABLED | |
3925 | LPFC_SLI3_DSS_ENABLED); | |
ed957684 | 3926 | if (rc != MBX_SUCCESS) { |
dea3101e | 3927 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
e8b62011 | 3928 | "0442 Adapter failed to init, mbxCmd x%x " |
92d7f7b0 | 3929 | "CONFIG_PORT, mbxStatus x%x Data: x%x\n", |
04c68496 | 3930 | pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus, 0); |
2e0fef85 | 3931 | spin_lock_irq(&phba->hbalock); |
04c68496 | 3932 | phba->sli.sli_flag &= ~LPFC_SLI_ACTIVE; |
2e0fef85 JS |
3933 | spin_unlock_irq(&phba->hbalock); |
3934 | rc = -ENXIO; | |
04c68496 JS |
3935 | } else { |
3936 | /* Allow asynchronous mailbox command to go through */ | |
3937 | spin_lock_irq(&phba->hbalock); | |
3938 | phba->sli.sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK; | |
3939 | spin_unlock_irq(&phba->hbalock); | |
ed957684 | 3940 | done = 1; |
04c68496 | 3941 | } |
dea3101e | 3942 | } |
ed957684 JS |
3943 | if (!done) { |
3944 | rc = -EINVAL; | |
3945 | goto do_prep_failed; | |
3946 | } | |
04c68496 JS |
3947 | if (pmb->u.mb.un.varCfgPort.sli_mode == 3) { |
3948 | if (!pmb->u.mb.un.varCfgPort.cMA) { | |
34b02dcd JS |
3949 | rc = -ENXIO; |
3950 | goto do_prep_failed; | |
3951 | } | |
04c68496 | 3952 | if (phba->max_vpi && pmb->u.mb.un.varCfgPort.gmv) { |
34b02dcd | 3953 | phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED; |
04c68496 JS |
3954 | phba->max_vpi = pmb->u.mb.un.varCfgPort.max_vpi; |
3955 | phba->max_vports = (phba->max_vpi > phba->max_vports) ? | |
3956 | phba->max_vpi : phba->max_vports; | |
3957 | ||
34b02dcd JS |
3958 | } else |
3959 | phba->max_vpi = 0; | |
bc73905a JS |
3960 | phba->fips_level = 0; |
3961 | phba->fips_spec_rev = 0; | |
3962 | if (pmb->u.mb.un.varCfgPort.gdss) { | |
04c68496 | 3963 | phba->sli3_options |= LPFC_SLI3_DSS_ENABLED; |
bc73905a JS |
3964 | phba->fips_level = pmb->u.mb.un.varCfgPort.fips_level; |
3965 | phba->fips_spec_rev = pmb->u.mb.un.varCfgPort.fips_rev; | |
3966 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
3967 | "2850 Security Crypto Active. FIPS x%d " | |
3968 | "(Spec Rev: x%d)", | |
3969 | phba->fips_level, phba->fips_spec_rev); | |
3970 | } | |
3971 | if (pmb->u.mb.un.varCfgPort.sec_err) { | |
3972 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
3973 | "2856 Config Port Security Crypto " | |
3974 | "Error: x%x ", | |
3975 | pmb->u.mb.un.varCfgPort.sec_err); | |
3976 | } | |
04c68496 | 3977 | if (pmb->u.mb.un.varCfgPort.gerbm) |
34b02dcd | 3978 | phba->sli3_options |= LPFC_SLI3_HBQ_ENABLED; |
04c68496 | 3979 | if (pmb->u.mb.un.varCfgPort.gcrp) |
34b02dcd | 3980 | phba->sli3_options |= LPFC_SLI3_CRP_ENABLED; |
6e7288d9 JS |
3981 | |
3982 | phba->hbq_get = phba->mbox->us.s3_pgp.hbq_get; | |
3983 | phba->port_gp = phba->mbox->us.s3_pgp.port; | |
e2a0a9d6 JS |
3984 | |
3985 | if (phba->cfg_enable_bg) { | |
04c68496 | 3986 | if (pmb->u.mb.un.varCfgPort.gbg) |
e2a0a9d6 JS |
3987 | phba->sli3_options |= LPFC_SLI3_BG_ENABLED; |
3988 | else | |
3989 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
3990 | "0443 Adapter did not grant " | |
3991 | "BlockGuard\n"); | |
3992 | } | |
34b02dcd | 3993 | } else { |
8f34f4ce | 3994 | phba->hbq_get = NULL; |
34b02dcd | 3995 | phba->port_gp = phba->mbox->us.s2.port; |
d7c255b2 | 3996 | phba->max_vpi = 0; |
ed957684 | 3997 | } |
92d7f7b0 | 3998 | do_prep_failed: |
ed957684 JS |
3999 | mempool_free(pmb, phba->mbox_mem_pool); |
4000 | return rc; | |
4001 | } | |
4002 | ||
e59058c4 JS |
4003 | |
4004 | /** | |
3621a710 | 4005 | * lpfc_sli_hba_setup - SLI intialization function |
e59058c4 JS |
4006 | * @phba: Pointer to HBA context object. |
4007 | * | |
4008 | * This function is the main SLI intialization function. This function | |
4009 | * is called by the HBA intialization code, HBA reset code and HBA | |
4010 | * error attention handler code. Caller is not required to hold any | |
4011 | * locks. This function issues config_port mailbox command to configure | |
4012 | * the SLI, setup iocb rings and HBQ rings. In the end the function | |
4013 | * calls the config_port_post function to issue init_link mailbox | |
4014 | * command and to start the discovery. The function will return zero | |
4015 | * if successful, else it will return negative error code. | |
4016 | **/ | |
ed957684 JS |
4017 | int |
4018 | lpfc_sli_hba_setup(struct lpfc_hba *phba) | |
4019 | { | |
4020 | uint32_t rc; | |
92d7f7b0 | 4021 | int mode = 3; |
ed957684 JS |
4022 | |
4023 | switch (lpfc_sli_mode) { | |
4024 | case 2: | |
78b2d852 | 4025 | if (phba->cfg_enable_npiv) { |
92d7f7b0 | 4026 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT, |
e8b62011 | 4027 | "1824 NPIV enabled: Override lpfc_sli_mode " |
92d7f7b0 | 4028 | "parameter (%d) to auto (0).\n", |
e8b62011 | 4029 | lpfc_sli_mode); |
92d7f7b0 JS |
4030 | break; |
4031 | } | |
ed957684 JS |
4032 | mode = 2; |
4033 | break; | |
4034 | case 0: | |
4035 | case 3: | |
4036 | break; | |
4037 | default: | |
92d7f7b0 | 4038 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT, |
e8b62011 JS |
4039 | "1819 Unrecognized lpfc_sli_mode " |
4040 | "parameter: %d.\n", lpfc_sli_mode); | |
ed957684 JS |
4041 | |
4042 | break; | |
4043 | } | |
4044 | ||
9399627f JS |
4045 | rc = lpfc_sli_config_port(phba, mode); |
4046 | ||
ed957684 | 4047 | if (rc && lpfc_sli_mode == 3) |
92d7f7b0 | 4048 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT, |
e8b62011 JS |
4049 | "1820 Unable to select SLI-3. " |
4050 | "Not supported by adapter.\n"); | |
ed957684 | 4051 | if (rc && mode != 2) |
9399627f | 4052 | rc = lpfc_sli_config_port(phba, 2); |
ed957684 | 4053 | if (rc) |
dea3101e | 4054 | goto lpfc_sli_hba_setup_error; |
4055 | ||
0d878419 JS |
4056 | /* Enable PCIe device Advanced Error Reporting (AER) if configured */ |
4057 | if (phba->cfg_aer_support == 1 && !(phba->hba_flag & HBA_AER_ENABLED)) { | |
4058 | rc = pci_enable_pcie_error_reporting(phba->pcidev); | |
4059 | if (!rc) { | |
4060 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
4061 | "2709 This device supports " | |
4062 | "Advanced Error Reporting (AER)\n"); | |
4063 | spin_lock_irq(&phba->hbalock); | |
4064 | phba->hba_flag |= HBA_AER_ENABLED; | |
4065 | spin_unlock_irq(&phba->hbalock); | |
4066 | } else { | |
4067 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
4068 | "2708 This device does not support " | |
4069 | "Advanced Error Reporting (AER)\n"); | |
4070 | phba->cfg_aer_support = 0; | |
4071 | } | |
4072 | } | |
4073 | ||
ed957684 JS |
4074 | if (phba->sli_rev == 3) { |
4075 | phba->iocb_cmd_size = SLI3_IOCB_CMD_SIZE; | |
4076 | phba->iocb_rsp_size = SLI3_IOCB_RSP_SIZE; | |
ed957684 JS |
4077 | } else { |
4078 | phba->iocb_cmd_size = SLI2_IOCB_CMD_SIZE; | |
4079 | phba->iocb_rsp_size = SLI2_IOCB_RSP_SIZE; | |
92d7f7b0 | 4080 | phba->sli3_options = 0; |
ed957684 JS |
4081 | } |
4082 | ||
4083 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
e8b62011 JS |
4084 | "0444 Firmware in SLI %x mode. Max_vpi %d\n", |
4085 | phba->sli_rev, phba->max_vpi); | |
ed957684 | 4086 | rc = lpfc_sli_ring_map(phba); |
dea3101e | 4087 | |
4088 | if (rc) | |
4089 | goto lpfc_sli_hba_setup_error; | |
4090 | ||
9399627f | 4091 | /* Init HBQs */ |
ed957684 JS |
4092 | if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) { |
4093 | rc = lpfc_sli_hbq_setup(phba); | |
4094 | if (rc) | |
4095 | goto lpfc_sli_hba_setup_error; | |
4096 | } | |
04c68496 | 4097 | spin_lock_irq(&phba->hbalock); |
dea3101e | 4098 | phba->sli.sli_flag |= LPFC_PROCESS_LA; |
04c68496 | 4099 | spin_unlock_irq(&phba->hbalock); |
dea3101e | 4100 | |
4101 | rc = lpfc_config_port_post(phba); | |
4102 | if (rc) | |
4103 | goto lpfc_sli_hba_setup_error; | |
4104 | ||
ed957684 JS |
4105 | return rc; |
4106 | ||
92d7f7b0 | 4107 | lpfc_sli_hba_setup_error: |
2e0fef85 | 4108 | phba->link_state = LPFC_HBA_ERROR; |
e40a02c1 | 4109 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
e8b62011 | 4110 | "0445 Firmware initialization failed\n"); |
dea3101e | 4111 | return rc; |
4112 | } | |
4113 | ||
e59058c4 | 4114 | /** |
da0436e9 JS |
4115 | * lpfc_sli4_read_fcoe_params - Read fcoe params from conf region |
4116 | * @phba: Pointer to HBA context object. | |
4117 | * @mboxq: mailbox pointer. | |
4118 | * This function issue a dump mailbox command to read config region | |
4119 | * 23 and parse the records in the region and populate driver | |
4120 | * data structure. | |
e59058c4 | 4121 | **/ |
da0436e9 JS |
4122 | static int |
4123 | lpfc_sli4_read_fcoe_params(struct lpfc_hba *phba, | |
4124 | LPFC_MBOXQ_t *mboxq) | |
dea3101e | 4125 | { |
da0436e9 JS |
4126 | struct lpfc_dmabuf *mp; |
4127 | struct lpfc_mqe *mqe; | |
4128 | uint32_t data_length; | |
4129 | int rc; | |
dea3101e | 4130 | |
da0436e9 JS |
4131 | /* Program the default value of vlan_id and fc_map */ |
4132 | phba->valid_vlan = 0; | |
4133 | phba->fc_map[0] = LPFC_FCOE_FCF_MAP0; | |
4134 | phba->fc_map[1] = LPFC_FCOE_FCF_MAP1; | |
4135 | phba->fc_map[2] = LPFC_FCOE_FCF_MAP2; | |
2e0fef85 | 4136 | |
da0436e9 JS |
4137 | mqe = &mboxq->u.mqe; |
4138 | if (lpfc_dump_fcoe_param(phba, mboxq)) | |
4139 | return -ENOMEM; | |
4140 | ||
4141 | mp = (struct lpfc_dmabuf *) mboxq->context1; | |
4142 | rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); | |
4143 | ||
4144 | lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI, | |
4145 | "(%d):2571 Mailbox cmd x%x Status x%x " | |
4146 | "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x " | |
4147 | "x%x x%x x%x x%x x%x x%x x%x x%x x%x " | |
4148 | "CQ: x%x x%x x%x x%x\n", | |
4149 | mboxq->vport ? mboxq->vport->vpi : 0, | |
4150 | bf_get(lpfc_mqe_command, mqe), | |
4151 | bf_get(lpfc_mqe_status, mqe), | |
4152 | mqe->un.mb_words[0], mqe->un.mb_words[1], | |
4153 | mqe->un.mb_words[2], mqe->un.mb_words[3], | |
4154 | mqe->un.mb_words[4], mqe->un.mb_words[5], | |
4155 | mqe->un.mb_words[6], mqe->un.mb_words[7], | |
4156 | mqe->un.mb_words[8], mqe->un.mb_words[9], | |
4157 | mqe->un.mb_words[10], mqe->un.mb_words[11], | |
4158 | mqe->un.mb_words[12], mqe->un.mb_words[13], | |
4159 | mqe->un.mb_words[14], mqe->un.mb_words[15], | |
4160 | mqe->un.mb_words[16], mqe->un.mb_words[50], | |
4161 | mboxq->mcqe.word0, | |
4162 | mboxq->mcqe.mcqe_tag0, mboxq->mcqe.mcqe_tag1, | |
4163 | mboxq->mcqe.trailer); | |
4164 | ||
4165 | if (rc) { | |
4166 | lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
4167 | kfree(mp); | |
4168 | return -EIO; | |
4169 | } | |
4170 | data_length = mqe->un.mb_words[5]; | |
a0c87cbd | 4171 | if (data_length > DMP_RGN23_SIZE) { |
d11e31dd JS |
4172 | lpfc_mbuf_free(phba, mp->virt, mp->phys); |
4173 | kfree(mp); | |
da0436e9 | 4174 | return -EIO; |
d11e31dd | 4175 | } |
dea3101e | 4176 | |
da0436e9 JS |
4177 | lpfc_parse_fcoe_conf(phba, mp->virt, data_length); |
4178 | lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
4179 | kfree(mp); | |
4180 | return 0; | |
4181 | } | |
e59058c4 JS |
4182 | |
4183 | /** | |
da0436e9 JS |
4184 | * lpfc_sli4_read_rev - Issue READ_REV and collect vpd data |
4185 | * @phba: pointer to lpfc hba data structure. | |
4186 | * @mboxq: pointer to the LPFC_MBOXQ_t structure. | |
4187 | * @vpd: pointer to the memory to hold resulting port vpd data. | |
4188 | * @vpd_size: On input, the number of bytes allocated to @vpd. | |
4189 | * On output, the number of data bytes in @vpd. | |
e59058c4 | 4190 | * |
da0436e9 JS |
4191 | * This routine executes a READ_REV SLI4 mailbox command. In |
4192 | * addition, this routine gets the port vpd data. | |
4193 | * | |
4194 | * Return codes | |
af901ca1 | 4195 | * 0 - successful |
d439d286 | 4196 | * -ENOMEM - could not allocated memory. |
e59058c4 | 4197 | **/ |
da0436e9 JS |
4198 | static int |
4199 | lpfc_sli4_read_rev(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq, | |
4200 | uint8_t *vpd, uint32_t *vpd_size) | |
dea3101e | 4201 | { |
da0436e9 JS |
4202 | int rc = 0; |
4203 | uint32_t dma_size; | |
4204 | struct lpfc_dmabuf *dmabuf; | |
4205 | struct lpfc_mqe *mqe; | |
dea3101e | 4206 | |
da0436e9 JS |
4207 | dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); |
4208 | if (!dmabuf) | |
4209 | return -ENOMEM; | |
4210 | ||
4211 | /* | |
4212 | * Get a DMA buffer for the vpd data resulting from the READ_REV | |
4213 | * mailbox command. | |
a257bf90 | 4214 | */ |
da0436e9 JS |
4215 | dma_size = *vpd_size; |
4216 | dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, | |
4217 | dma_size, | |
4218 | &dmabuf->phys, | |
4219 | GFP_KERNEL); | |
4220 | if (!dmabuf->virt) { | |
4221 | kfree(dmabuf); | |
4222 | return -ENOMEM; | |
a257bf90 | 4223 | } |
da0436e9 | 4224 | memset(dmabuf->virt, 0, dma_size); |
a257bf90 | 4225 | |
da0436e9 JS |
4226 | /* |
4227 | * The SLI4 implementation of READ_REV conflicts at word1, | |
4228 | * bits 31:16 and SLI4 adds vpd functionality not present | |
4229 | * in SLI3. This code corrects the conflicts. | |
1dcb58e5 | 4230 | */ |
da0436e9 JS |
4231 | lpfc_read_rev(phba, mboxq); |
4232 | mqe = &mboxq->u.mqe; | |
4233 | mqe->un.read_rev.vpd_paddr_high = putPaddrHigh(dmabuf->phys); | |
4234 | mqe->un.read_rev.vpd_paddr_low = putPaddrLow(dmabuf->phys); | |
4235 | mqe->un.read_rev.word1 &= 0x0000FFFF; | |
4236 | bf_set(lpfc_mbx_rd_rev_vpd, &mqe->un.read_rev, 1); | |
4237 | bf_set(lpfc_mbx_rd_rev_avail_len, &mqe->un.read_rev, dma_size); | |
4238 | ||
4239 | rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); | |
4240 | if (rc) { | |
4241 | dma_free_coherent(&phba->pcidev->dev, dma_size, | |
4242 | dmabuf->virt, dmabuf->phys); | |
def9c7a9 | 4243 | kfree(dmabuf); |
da0436e9 JS |
4244 | return -EIO; |
4245 | } | |
1dcb58e5 | 4246 | |
da0436e9 JS |
4247 | /* |
4248 | * The available vpd length cannot be bigger than the | |
4249 | * DMA buffer passed to the port. Catch the less than | |
4250 | * case and update the caller's size. | |
4251 | */ | |
4252 | if (mqe->un.read_rev.avail_vpd_len < *vpd_size) | |
4253 | *vpd_size = mqe->un.read_rev.avail_vpd_len; | |
3772a991 | 4254 | |
d7c47992 JS |
4255 | memcpy(vpd, dmabuf->virt, *vpd_size); |
4256 | ||
da0436e9 JS |
4257 | dma_free_coherent(&phba->pcidev->dev, dma_size, |
4258 | dmabuf->virt, dmabuf->phys); | |
4259 | kfree(dmabuf); | |
4260 | return 0; | |
dea3101e | 4261 | } |
4262 | ||
e59058c4 | 4263 | /** |
da0436e9 JS |
4264 | * lpfc_sli4_arm_cqeq_intr - Arm sli-4 device completion and event queues |
4265 | * @phba: pointer to lpfc hba data structure. | |
e59058c4 | 4266 | * |
da0436e9 JS |
4267 | * This routine is called to explicitly arm the SLI4 device's completion and |
4268 | * event queues | |
4269 | **/ | |
4270 | static void | |
4271 | lpfc_sli4_arm_cqeq_intr(struct lpfc_hba *phba) | |
4272 | { | |
4273 | uint8_t fcp_eqidx; | |
4274 | ||
4275 | lpfc_sli4_cq_release(phba->sli4_hba.mbx_cq, LPFC_QUEUE_REARM); | |
4276 | lpfc_sli4_cq_release(phba->sli4_hba.els_cq, LPFC_QUEUE_REARM); | |
da0436e9 JS |
4277 | for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) |
4278 | lpfc_sli4_cq_release(phba->sli4_hba.fcp_cq[fcp_eqidx], | |
4279 | LPFC_QUEUE_REARM); | |
4280 | lpfc_sli4_eq_release(phba->sli4_hba.sp_eq, LPFC_QUEUE_REARM); | |
4281 | for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) | |
4282 | lpfc_sli4_eq_release(phba->sli4_hba.fp_eq[fcp_eqidx], | |
4283 | LPFC_QUEUE_REARM); | |
4284 | } | |
4285 | ||
4286 | /** | |
4287 | * lpfc_sli4_hba_setup - SLI4 device intialization PCI function | |
4288 | * @phba: Pointer to HBA context object. | |
4289 | * | |
4290 | * This function is the main SLI4 device intialization PCI function. This | |
4291 | * function is called by the HBA intialization code, HBA reset code and | |
4292 | * HBA error attention handler code. Caller is not required to hold any | |
4293 | * locks. | |
4294 | **/ | |
4295 | int | |
4296 | lpfc_sli4_hba_setup(struct lpfc_hba *phba) | |
4297 | { | |
4298 | int rc; | |
4299 | LPFC_MBOXQ_t *mboxq; | |
4300 | struct lpfc_mqe *mqe; | |
4301 | uint8_t *vpd; | |
4302 | uint32_t vpd_size; | |
4303 | uint32_t ftr_rsp = 0; | |
4304 | struct Scsi_Host *shost = lpfc_shost_from_vport(phba->pport); | |
4305 | struct lpfc_vport *vport = phba->pport; | |
4306 | struct lpfc_dmabuf *mp; | |
4307 | ||
4308 | /* Perform a PCI function reset to start from clean */ | |
4309 | rc = lpfc_pci_function_reset(phba); | |
4310 | if (unlikely(rc)) | |
4311 | return -ENODEV; | |
4312 | ||
4313 | /* Check the HBA Host Status Register for readyness */ | |
4314 | rc = lpfc_sli4_post_status_check(phba); | |
4315 | if (unlikely(rc)) | |
4316 | return -ENODEV; | |
4317 | else { | |
4318 | spin_lock_irq(&phba->hbalock); | |
4319 | phba->sli.sli_flag |= LPFC_SLI_ACTIVE; | |
4320 | spin_unlock_irq(&phba->hbalock); | |
4321 | } | |
4322 | ||
4323 | /* | |
4324 | * Allocate a single mailbox container for initializing the | |
4325 | * port. | |
4326 | */ | |
4327 | mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
4328 | if (!mboxq) | |
4329 | return -ENOMEM; | |
4330 | ||
4331 | /* | |
4332 | * Continue initialization with default values even if driver failed | |
4333 | * to read FCoE param config regions | |
4334 | */ | |
4335 | if (lpfc_sli4_read_fcoe_params(phba, mboxq)) | |
4336 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT, | |
e4e74273 | 4337 | "2570 Failed to read FCoE parameters\n"); |
da0436e9 JS |
4338 | |
4339 | /* Issue READ_REV to collect vpd and FW information. */ | |
49198b37 | 4340 | vpd_size = SLI4_PAGE_SIZE; |
da0436e9 JS |
4341 | vpd = kzalloc(vpd_size, GFP_KERNEL); |
4342 | if (!vpd) { | |
4343 | rc = -ENOMEM; | |
4344 | goto out_free_mbox; | |
4345 | } | |
4346 | ||
4347 | rc = lpfc_sli4_read_rev(phba, mboxq, vpd, &vpd_size); | |
4348 | if (unlikely(rc)) | |
4349 | goto out_free_vpd; | |
4350 | ||
4351 | mqe = &mboxq->u.mqe; | |
f1126688 JS |
4352 | phba->sli_rev = bf_get(lpfc_mbx_rd_rev_sli_lvl, &mqe->un.read_rev); |
4353 | if (bf_get(lpfc_mbx_rd_rev_fcoe, &mqe->un.read_rev)) | |
4354 | phba->hba_flag |= HBA_FCOE_SUPPORT; | |
45ed1190 JS |
4355 | |
4356 | if (bf_get(lpfc_mbx_rd_rev_cee_ver, &mqe->un.read_rev) == | |
4357 | LPFC_DCBX_CEE_MODE) | |
4358 | phba->hba_flag |= HBA_FIP_SUPPORT; | |
4359 | else | |
4360 | phba->hba_flag &= ~HBA_FIP_SUPPORT; | |
4361 | ||
f1126688 JS |
4362 | if (phba->sli_rev != LPFC_SLI_REV4 || |
4363 | !(phba->hba_flag & HBA_FCOE_SUPPORT)) { | |
da0436e9 JS |
4364 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, |
4365 | "0376 READ_REV Error. SLI Level %d " | |
4366 | "FCoE enabled %d\n", | |
f1126688 | 4367 | phba->sli_rev, phba->hba_flag & HBA_FCOE_SUPPORT); |
da0436e9 JS |
4368 | rc = -EIO; |
4369 | goto out_free_vpd; | |
4370 | } | |
da0436e9 JS |
4371 | /* |
4372 | * Evaluate the read rev and vpd data. Populate the driver | |
4373 | * state with the results. If this routine fails, the failure | |
4374 | * is not fatal as the driver will use generic values. | |
4375 | */ | |
4376 | rc = lpfc_parse_vpd(phba, vpd, vpd_size); | |
4377 | if (unlikely(!rc)) { | |
4378 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, | |
4379 | "0377 Error %d parsing vpd. " | |
4380 | "Using defaults.\n", rc); | |
4381 | rc = 0; | |
4382 | } | |
4383 | ||
f1126688 JS |
4384 | /* Save information as VPD data */ |
4385 | phba->vpd.rev.biuRev = mqe->un.read_rev.first_hw_rev; | |
4386 | phba->vpd.rev.smRev = mqe->un.read_rev.second_hw_rev; | |
4387 | phba->vpd.rev.endecRev = mqe->un.read_rev.third_hw_rev; | |
4388 | phba->vpd.rev.fcphHigh = bf_get(lpfc_mbx_rd_rev_fcph_high, | |
4389 | &mqe->un.read_rev); | |
4390 | phba->vpd.rev.fcphLow = bf_get(lpfc_mbx_rd_rev_fcph_low, | |
4391 | &mqe->un.read_rev); | |
4392 | phba->vpd.rev.feaLevelHigh = bf_get(lpfc_mbx_rd_rev_ftr_lvl_high, | |
4393 | &mqe->un.read_rev); | |
4394 | phba->vpd.rev.feaLevelLow = bf_get(lpfc_mbx_rd_rev_ftr_lvl_low, | |
4395 | &mqe->un.read_rev); | |
4396 | phba->vpd.rev.sli1FwRev = mqe->un.read_rev.fw_id_rev; | |
4397 | memcpy(phba->vpd.rev.sli1FwName, mqe->un.read_rev.fw_name, 16); | |
4398 | phba->vpd.rev.sli2FwRev = mqe->un.read_rev.ulp_fw_id_rev; | |
4399 | memcpy(phba->vpd.rev.sli2FwName, mqe->un.read_rev.ulp_fw_name, 16); | |
4400 | phba->vpd.rev.opFwRev = mqe->un.read_rev.fw_id_rev; | |
4401 | memcpy(phba->vpd.rev.opFwName, mqe->un.read_rev.fw_name, 16); | |
4402 | lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI, | |
4403 | "(%d):0380 READ_REV Status x%x " | |
4404 | "fw_rev:%s fcphHi:%x fcphLo:%x flHi:%x flLo:%x\n", | |
4405 | mboxq->vport ? mboxq->vport->vpi : 0, | |
4406 | bf_get(lpfc_mqe_status, mqe), | |
4407 | phba->vpd.rev.opFwName, | |
4408 | phba->vpd.rev.fcphHigh, phba->vpd.rev.fcphLow, | |
4409 | phba->vpd.rev.feaLevelHigh, phba->vpd.rev.feaLevelLow); | |
da0436e9 JS |
4410 | |
4411 | /* | |
4412 | * Discover the port's supported feature set and match it against the | |
4413 | * hosts requests. | |
4414 | */ | |
4415 | lpfc_request_features(phba, mboxq); | |
4416 | rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); | |
4417 | if (unlikely(rc)) { | |
4418 | rc = -EIO; | |
4419 | goto out_free_vpd; | |
4420 | } | |
4421 | ||
4422 | /* | |
4423 | * The port must support FCP initiator mode as this is the | |
4424 | * only mode running in the host. | |
4425 | */ | |
4426 | if (!(bf_get(lpfc_mbx_rq_ftr_rsp_fcpi, &mqe->un.req_ftrs))) { | |
4427 | lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI, | |
4428 | "0378 No support for fcpi mode.\n"); | |
4429 | ftr_rsp++; | |
4430 | } | |
4431 | ||
4432 | /* | |
4433 | * If the port cannot support the host's requested features | |
4434 | * then turn off the global config parameters to disable the | |
4435 | * feature in the driver. This is not a fatal error. | |
4436 | */ | |
4437 | if ((phba->cfg_enable_bg) && | |
4438 | !(bf_get(lpfc_mbx_rq_ftr_rsp_dif, &mqe->un.req_ftrs))) | |
4439 | ftr_rsp++; | |
4440 | ||
4441 | if (phba->max_vpi && phba->cfg_enable_npiv && | |
4442 | !(bf_get(lpfc_mbx_rq_ftr_rsp_npiv, &mqe->un.req_ftrs))) | |
4443 | ftr_rsp++; | |
4444 | ||
4445 | if (ftr_rsp) { | |
4446 | lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI, | |
4447 | "0379 Feature Mismatch Data: x%08x %08x " | |
4448 | "x%x x%x x%x\n", mqe->un.req_ftrs.word2, | |
4449 | mqe->un.req_ftrs.word3, phba->cfg_enable_bg, | |
4450 | phba->cfg_enable_npiv, phba->max_vpi); | |
4451 | if (!(bf_get(lpfc_mbx_rq_ftr_rsp_dif, &mqe->un.req_ftrs))) | |
4452 | phba->cfg_enable_bg = 0; | |
4453 | if (!(bf_get(lpfc_mbx_rq_ftr_rsp_npiv, &mqe->un.req_ftrs))) | |
4454 | phba->cfg_enable_npiv = 0; | |
4455 | } | |
4456 | ||
4457 | /* These SLI3 features are assumed in SLI4 */ | |
4458 | spin_lock_irq(&phba->hbalock); | |
4459 | phba->sli3_options |= (LPFC_SLI3_NPIV_ENABLED | LPFC_SLI3_HBQ_ENABLED); | |
4460 | spin_unlock_irq(&phba->hbalock); | |
4461 | ||
4462 | /* Read the port's service parameters. */ | |
9f1177a3 JS |
4463 | rc = lpfc_read_sparam(phba, mboxq, vport->vpi); |
4464 | if (rc) { | |
4465 | phba->link_state = LPFC_HBA_ERROR; | |
4466 | rc = -ENOMEM; | |
4467 | goto out_free_vpd; | |
4468 | } | |
4469 | ||
da0436e9 JS |
4470 | mboxq->vport = vport; |
4471 | rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); | |
4472 | mp = (struct lpfc_dmabuf *) mboxq->context1; | |
4473 | if (rc == MBX_SUCCESS) { | |
4474 | memcpy(&vport->fc_sparam, mp->virt, sizeof(struct serv_parm)); | |
4475 | rc = 0; | |
4476 | } | |
4477 | ||
4478 | /* | |
4479 | * This memory was allocated by the lpfc_read_sparam routine. Release | |
4480 | * it to the mbuf pool. | |
4481 | */ | |
4482 | lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
4483 | kfree(mp); | |
4484 | mboxq->context1 = NULL; | |
4485 | if (unlikely(rc)) { | |
4486 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, | |
4487 | "0382 READ_SPARAM command failed " | |
4488 | "status %d, mbxStatus x%x\n", | |
4489 | rc, bf_get(lpfc_mqe_status, mqe)); | |
4490 | phba->link_state = LPFC_HBA_ERROR; | |
4491 | rc = -EIO; | |
4492 | goto out_free_vpd; | |
4493 | } | |
4494 | ||
4495 | if (phba->cfg_soft_wwnn) | |
4496 | u64_to_wwn(phba->cfg_soft_wwnn, | |
4497 | vport->fc_sparam.nodeName.u.wwn); | |
4498 | if (phba->cfg_soft_wwpn) | |
4499 | u64_to_wwn(phba->cfg_soft_wwpn, | |
4500 | vport->fc_sparam.portName.u.wwn); | |
4501 | memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName, | |
4502 | sizeof(struct lpfc_name)); | |
4503 | memcpy(&vport->fc_portname, &vport->fc_sparam.portName, | |
4504 | sizeof(struct lpfc_name)); | |
4505 | ||
4506 | /* Update the fc_host data structures with new wwn. */ | |
4507 | fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn); | |
4508 | fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); | |
4509 | ||
4510 | /* Register SGL pool to the device using non-embedded mailbox command */ | |
4511 | rc = lpfc_sli4_post_sgl_list(phba); | |
4512 | if (unlikely(rc)) { | |
4513 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, | |
6a9c52cf JS |
4514 | "0582 Error %d during sgl post operation\n", |
4515 | rc); | |
da0436e9 JS |
4516 | rc = -ENODEV; |
4517 | goto out_free_vpd; | |
4518 | } | |
4519 | ||
4520 | /* Register SCSI SGL pool to the device */ | |
4521 | rc = lpfc_sli4_repost_scsi_sgl_list(phba); | |
4522 | if (unlikely(rc)) { | |
4523 | lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI, | |
6a9c52cf JS |
4524 | "0383 Error %d during scsi sgl post " |
4525 | "operation\n", rc); | |
da0436e9 JS |
4526 | /* Some Scsi buffers were moved to the abort scsi list */ |
4527 | /* A pci function reset will repost them */ | |
4528 | rc = -ENODEV; | |
4529 | goto out_free_vpd; | |
4530 | } | |
4531 | ||
4532 | /* Post the rpi header region to the device. */ | |
4533 | rc = lpfc_sli4_post_all_rpi_hdrs(phba); | |
4534 | if (unlikely(rc)) { | |
4535 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, | |
4536 | "0393 Error %d during rpi post operation\n", | |
4537 | rc); | |
4538 | rc = -ENODEV; | |
4539 | goto out_free_vpd; | |
4540 | } | |
da0436e9 JS |
4541 | |
4542 | /* Set up all the queues to the device */ | |
4543 | rc = lpfc_sli4_queue_setup(phba); | |
4544 | if (unlikely(rc)) { | |
4545 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, | |
4546 | "0381 Error %d during queue setup.\n ", rc); | |
4547 | goto out_stop_timers; | |
4548 | } | |
4549 | ||
4550 | /* Arm the CQs and then EQs on device */ | |
4551 | lpfc_sli4_arm_cqeq_intr(phba); | |
4552 | ||
4553 | /* Indicate device interrupt mode */ | |
4554 | phba->sli4_hba.intr_enable = 1; | |
4555 | ||
4556 | /* Allow asynchronous mailbox command to go through */ | |
4557 | spin_lock_irq(&phba->hbalock); | |
4558 | phba->sli.sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK; | |
4559 | spin_unlock_irq(&phba->hbalock); | |
4560 | ||
4561 | /* Post receive buffers to the device */ | |
4562 | lpfc_sli4_rb_setup(phba); | |
4563 | ||
fc2b989b JS |
4564 | /* Reset HBA FCF states after HBA reset */ |
4565 | phba->fcf.fcf_flag = 0; | |
4566 | phba->fcf.current_rec.flag = 0; | |
4567 | ||
da0436e9 | 4568 | /* Start the ELS watchdog timer */ |
8fa38513 JS |
4569 | mod_timer(&vport->els_tmofunc, |
4570 | jiffies + HZ * (phba->fc_ratov * 2)); | |
da0436e9 JS |
4571 | |
4572 | /* Start heart beat timer */ | |
4573 | mod_timer(&phba->hb_tmofunc, | |
4574 | jiffies + HZ * LPFC_HB_MBOX_INTERVAL); | |
4575 | phba->hb_outstanding = 0; | |
4576 | phba->last_completion_time = jiffies; | |
4577 | ||
4578 | /* Start error attention (ERATT) polling timer */ | |
4579 | mod_timer(&phba->eratt_poll, jiffies + HZ * LPFC_ERATT_POLL_INTERVAL); | |
4580 | ||
75baf696 JS |
4581 | /* Enable PCIe device Advanced Error Reporting (AER) if configured */ |
4582 | if (phba->cfg_aer_support == 1 && !(phba->hba_flag & HBA_AER_ENABLED)) { | |
4583 | rc = pci_enable_pcie_error_reporting(phba->pcidev); | |
4584 | if (!rc) { | |
4585 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
4586 | "2829 This device supports " | |
4587 | "Advanced Error Reporting (AER)\n"); | |
4588 | spin_lock_irq(&phba->hbalock); | |
4589 | phba->hba_flag |= HBA_AER_ENABLED; | |
4590 | spin_unlock_irq(&phba->hbalock); | |
4591 | } else { | |
4592 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
4593 | "2830 This device does not support " | |
4594 | "Advanced Error Reporting (AER)\n"); | |
4595 | phba->cfg_aer_support = 0; | |
4596 | } | |
4597 | } | |
4598 | ||
da0436e9 JS |
4599 | /* |
4600 | * The port is ready, set the host's link state to LINK_DOWN | |
4601 | * in preparation for link interrupts. | |
4602 | */ | |
4603 | lpfc_init_link(phba, mboxq, phba->cfg_topology, phba->cfg_link_speed); | |
4604 | mboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
4605 | lpfc_set_loopback_flag(phba); | |
4606 | /* Change driver state to LPFC_LINK_DOWN right before init link */ | |
4607 | spin_lock_irq(&phba->hbalock); | |
4608 | phba->link_state = LPFC_LINK_DOWN; | |
4609 | spin_unlock_irq(&phba->hbalock); | |
4610 | rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT); | |
4611 | if (unlikely(rc != MBX_NOT_FINISHED)) { | |
4612 | kfree(vpd); | |
4613 | return 0; | |
4614 | } else | |
4615 | rc = -EIO; | |
4616 | ||
4617 | /* Unset all the queues set up in this routine when error out */ | |
4618 | if (rc) | |
4619 | lpfc_sli4_queue_unset(phba); | |
4620 | ||
4621 | out_stop_timers: | |
4622 | if (rc) | |
4623 | lpfc_stop_hba_timers(phba); | |
4624 | out_free_vpd: | |
4625 | kfree(vpd); | |
4626 | out_free_mbox: | |
4627 | mempool_free(mboxq, phba->mbox_mem_pool); | |
4628 | return rc; | |
4629 | } | |
4630 | ||
4631 | /** | |
4632 | * lpfc_mbox_timeout - Timeout call back function for mbox timer | |
4633 | * @ptr: context object - pointer to hba structure. | |
4634 | * | |
4635 | * This is the callback function for mailbox timer. The mailbox | |
4636 | * timer is armed when a new mailbox command is issued and the timer | |
4637 | * is deleted when the mailbox complete. The function is called by | |
4638 | * the kernel timer code when a mailbox does not complete within | |
4639 | * expected time. This function wakes up the worker thread to | |
4640 | * process the mailbox timeout and returns. All the processing is | |
4641 | * done by the worker thread function lpfc_mbox_timeout_handler. | |
4642 | **/ | |
4643 | void | |
4644 | lpfc_mbox_timeout(unsigned long ptr) | |
4645 | { | |
4646 | struct lpfc_hba *phba = (struct lpfc_hba *) ptr; | |
4647 | unsigned long iflag; | |
4648 | uint32_t tmo_posted; | |
4649 | ||
4650 | spin_lock_irqsave(&phba->pport->work_port_lock, iflag); | |
4651 | tmo_posted = phba->pport->work_port_events & WORKER_MBOX_TMO; | |
4652 | if (!tmo_posted) | |
4653 | phba->pport->work_port_events |= WORKER_MBOX_TMO; | |
4654 | spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag); | |
4655 | ||
4656 | if (!tmo_posted) | |
4657 | lpfc_worker_wake_up(phba); | |
4658 | return; | |
4659 | } | |
4660 | ||
4661 | ||
4662 | /** | |
4663 | * lpfc_mbox_timeout_handler - Worker thread function to handle mailbox timeout | |
4664 | * @phba: Pointer to HBA context object. | |
4665 | * | |
4666 | * This function is called from worker thread when a mailbox command times out. | |
4667 | * The caller is not required to hold any locks. This function will reset the | |
4668 | * HBA and recover all the pending commands. | |
4669 | **/ | |
4670 | void | |
4671 | lpfc_mbox_timeout_handler(struct lpfc_hba *phba) | |
4672 | { | |
4673 | LPFC_MBOXQ_t *pmbox = phba->sli.mbox_active; | |
04c68496 | 4674 | MAILBOX_t *mb = &pmbox->u.mb; |
da0436e9 JS |
4675 | struct lpfc_sli *psli = &phba->sli; |
4676 | struct lpfc_sli_ring *pring; | |
4677 | ||
4678 | /* Check the pmbox pointer first. There is a race condition | |
4679 | * between the mbox timeout handler getting executed in the | |
4680 | * worklist and the mailbox actually completing. When this | |
4681 | * race condition occurs, the mbox_active will be NULL. | |
4682 | */ | |
4683 | spin_lock_irq(&phba->hbalock); | |
4684 | if (pmbox == NULL) { | |
4685 | lpfc_printf_log(phba, KERN_WARNING, | |
4686 | LOG_MBOX | LOG_SLI, | |
4687 | "0353 Active Mailbox cleared - mailbox timeout " | |
4688 | "exiting\n"); | |
4689 | spin_unlock_irq(&phba->hbalock); | |
4690 | return; | |
4691 | } | |
4692 | ||
4693 | /* Mbox cmd <mbxCommand> timeout */ | |
4694 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, | |
4695 | "0310 Mailbox command x%x timeout Data: x%x x%x x%p\n", | |
4696 | mb->mbxCommand, | |
4697 | phba->pport->port_state, | |
4698 | phba->sli.sli_flag, | |
4699 | phba->sli.mbox_active); | |
4700 | spin_unlock_irq(&phba->hbalock); | |
4701 | ||
4702 | /* Setting state unknown so lpfc_sli_abort_iocb_ring | |
4703 | * would get IOCB_ERROR from lpfc_sli_issue_iocb, allowing | |
4704 | * it to fail all oustanding SCSI IO. | |
4705 | */ | |
4706 | spin_lock_irq(&phba->pport->work_port_lock); | |
4707 | phba->pport->work_port_events &= ~WORKER_MBOX_TMO; | |
4708 | spin_unlock_irq(&phba->pport->work_port_lock); | |
4709 | spin_lock_irq(&phba->hbalock); | |
4710 | phba->link_state = LPFC_LINK_UNKNOWN; | |
f4b4c68f | 4711 | psli->sli_flag &= ~LPFC_SLI_ACTIVE; |
da0436e9 JS |
4712 | spin_unlock_irq(&phba->hbalock); |
4713 | ||
4714 | pring = &psli->ring[psli->fcp_ring]; | |
4715 | lpfc_sli_abort_iocb_ring(phba, pring); | |
4716 | ||
4717 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, | |
4718 | "0345 Resetting board due to mailbox timeout\n"); | |
4719 | ||
4720 | /* Reset the HBA device */ | |
4721 | lpfc_reset_hba(phba); | |
4722 | } | |
4723 | ||
4724 | /** | |
4725 | * lpfc_sli_issue_mbox_s3 - Issue an SLI3 mailbox command to firmware | |
4726 | * @phba: Pointer to HBA context object. | |
4727 | * @pmbox: Pointer to mailbox object. | |
4728 | * @flag: Flag indicating how the mailbox need to be processed. | |
4729 | * | |
4730 | * This function is called by discovery code and HBA management code | |
4731 | * to submit a mailbox command to firmware with SLI-3 interface spec. This | |
4732 | * function gets the hbalock to protect the data structures. | |
4733 | * The mailbox command can be submitted in polling mode, in which case | |
4734 | * this function will wait in a polling loop for the completion of the | |
4735 | * mailbox. | |
4736 | * If the mailbox is submitted in no_wait mode (not polling) the | |
4737 | * function will submit the command and returns immediately without waiting | |
4738 | * for the mailbox completion. The no_wait is supported only when HBA | |
4739 | * is in SLI2/SLI3 mode - interrupts are enabled. | |
4740 | * The SLI interface allows only one mailbox pending at a time. If the | |
4741 | * mailbox is issued in polling mode and there is already a mailbox | |
4742 | * pending, then the function will return an error. If the mailbox is issued | |
4743 | * in NO_WAIT mode and there is a mailbox pending already, the function | |
4744 | * will return MBX_BUSY after queuing the mailbox into mailbox queue. | |
4745 | * The sli layer owns the mailbox object until the completion of mailbox | |
4746 | * command if this function return MBX_BUSY or MBX_SUCCESS. For all other | |
4747 | * return codes the caller owns the mailbox command after the return of | |
4748 | * the function. | |
e59058c4 | 4749 | **/ |
3772a991 JS |
4750 | static int |
4751 | lpfc_sli_issue_mbox_s3(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox, | |
4752 | uint32_t flag) | |
dea3101e | 4753 | { |
dea3101e | 4754 | MAILBOX_t *mb; |
2e0fef85 | 4755 | struct lpfc_sli *psli = &phba->sli; |
dea3101e | 4756 | uint32_t status, evtctr; |
4757 | uint32_t ha_copy; | |
4758 | int i; | |
09372820 | 4759 | unsigned long timeout; |
dea3101e | 4760 | unsigned long drvr_flag = 0; |
34b02dcd | 4761 | uint32_t word0, ldata; |
dea3101e | 4762 | void __iomem *to_slim; |
58da1ffb JS |
4763 | int processing_queue = 0; |
4764 | ||
4765 | spin_lock_irqsave(&phba->hbalock, drvr_flag); | |
4766 | if (!pmbox) { | |
8568a4d2 | 4767 | phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; |
58da1ffb | 4768 | /* processing mbox queue from intr_handler */ |
3772a991 JS |
4769 | if (unlikely(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) { |
4770 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); | |
4771 | return MBX_SUCCESS; | |
4772 | } | |
58da1ffb | 4773 | processing_queue = 1; |
58da1ffb JS |
4774 | pmbox = lpfc_mbox_get(phba); |
4775 | if (!pmbox) { | |
4776 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); | |
4777 | return MBX_SUCCESS; | |
4778 | } | |
4779 | } | |
dea3101e | 4780 | |
ed957684 | 4781 | if (pmbox->mbox_cmpl && pmbox->mbox_cmpl != lpfc_sli_def_mbox_cmpl && |
92d7f7b0 | 4782 | pmbox->mbox_cmpl != lpfc_sli_wake_mbox_wait) { |
ed957684 | 4783 | if(!pmbox->vport) { |
58da1ffb | 4784 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); |
ed957684 | 4785 | lpfc_printf_log(phba, KERN_ERR, |
92d7f7b0 | 4786 | LOG_MBOX | LOG_VPORT, |
e8b62011 | 4787 | "1806 Mbox x%x failed. No vport\n", |
3772a991 | 4788 | pmbox->u.mb.mbxCommand); |
ed957684 | 4789 | dump_stack(); |
58da1ffb | 4790 | goto out_not_finished; |
ed957684 JS |
4791 | } |
4792 | } | |
4793 | ||
8d63f375 | 4794 | /* If the PCI channel is in offline state, do not post mbox. */ |
58da1ffb JS |
4795 | if (unlikely(pci_channel_offline(phba->pcidev))) { |
4796 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); | |
4797 | goto out_not_finished; | |
4798 | } | |
8d63f375 | 4799 | |
a257bf90 JS |
4800 | /* If HBA has a deferred error attention, fail the iocb. */ |
4801 | if (unlikely(phba->hba_flag & DEFER_ERATT)) { | |
4802 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); | |
4803 | goto out_not_finished; | |
4804 | } | |
4805 | ||
dea3101e | 4806 | psli = &phba->sli; |
92d7f7b0 | 4807 | |
3772a991 | 4808 | mb = &pmbox->u.mb; |
dea3101e | 4809 | status = MBX_SUCCESS; |
4810 | ||
2e0fef85 JS |
4811 | if (phba->link_state == LPFC_HBA_ERROR) { |
4812 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); | |
41415862 JW |
4813 | |
4814 | /* Mbox command <mbxCommand> cannot issue */ | |
3772a991 JS |
4815 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, |
4816 | "(%d):0311 Mailbox command x%x cannot " | |
4817 | "issue Data: x%x x%x\n", | |
4818 | pmbox->vport ? pmbox->vport->vpi : 0, | |
4819 | pmbox->u.mb.mbxCommand, psli->sli_flag, flag); | |
58da1ffb | 4820 | goto out_not_finished; |
41415862 JW |
4821 | } |
4822 | ||
9290831f JS |
4823 | if (mb->mbxCommand != MBX_KILL_BOARD && flag & MBX_NOWAIT && |
4824 | !(readl(phba->HCregaddr) & HC_MBINT_ENA)) { | |
2e0fef85 | 4825 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); |
3772a991 JS |
4826 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, |
4827 | "(%d):2528 Mailbox command x%x cannot " | |
4828 | "issue Data: x%x x%x\n", | |
4829 | pmbox->vport ? pmbox->vport->vpi : 0, | |
4830 | pmbox->u.mb.mbxCommand, psli->sli_flag, flag); | |
58da1ffb | 4831 | goto out_not_finished; |
9290831f JS |
4832 | } |
4833 | ||
dea3101e | 4834 | if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) { |
4835 | /* Polling for a mbox command when another one is already active | |
4836 | * is not allowed in SLI. Also, the driver must have established | |
4837 | * SLI2 mode to queue and process multiple mbox commands. | |
4838 | */ | |
4839 | ||
4840 | if (flag & MBX_POLL) { | |
2e0fef85 | 4841 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); |
dea3101e | 4842 | |
4843 | /* Mbox command <mbxCommand> cannot issue */ | |
3772a991 JS |
4844 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, |
4845 | "(%d):2529 Mailbox command x%x " | |
4846 | "cannot issue Data: x%x x%x\n", | |
4847 | pmbox->vport ? pmbox->vport->vpi : 0, | |
4848 | pmbox->u.mb.mbxCommand, | |
4849 | psli->sli_flag, flag); | |
58da1ffb | 4850 | goto out_not_finished; |
dea3101e | 4851 | } |
4852 | ||
3772a991 | 4853 | if (!(psli->sli_flag & LPFC_SLI_ACTIVE)) { |
2e0fef85 | 4854 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); |
dea3101e | 4855 | /* Mbox command <mbxCommand> cannot issue */ |
3772a991 JS |
4856 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, |
4857 | "(%d):2530 Mailbox command x%x " | |
4858 | "cannot issue Data: x%x x%x\n", | |
4859 | pmbox->vport ? pmbox->vport->vpi : 0, | |
4860 | pmbox->u.mb.mbxCommand, | |
4861 | psli->sli_flag, flag); | |
58da1ffb | 4862 | goto out_not_finished; |
dea3101e | 4863 | } |
4864 | ||
dea3101e | 4865 | /* Another mailbox command is still being processed, queue this |
4866 | * command to be processed later. | |
4867 | */ | |
4868 | lpfc_mbox_put(phba, pmbox); | |
4869 | ||
4870 | /* Mbox cmd issue - BUSY */ | |
ed957684 | 4871 | lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI, |
e8b62011 | 4872 | "(%d):0308 Mbox cmd issue - BUSY Data: " |
92d7f7b0 | 4873 | "x%x x%x x%x x%x\n", |
92d7f7b0 JS |
4874 | pmbox->vport ? pmbox->vport->vpi : 0xffffff, |
4875 | mb->mbxCommand, phba->pport->port_state, | |
4876 | psli->sli_flag, flag); | |
dea3101e | 4877 | |
4878 | psli->slistat.mbox_busy++; | |
2e0fef85 | 4879 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); |
dea3101e | 4880 | |
858c9f6c JS |
4881 | if (pmbox->vport) { |
4882 | lpfc_debugfs_disc_trc(pmbox->vport, | |
4883 | LPFC_DISC_TRC_MBOX_VPORT, | |
4884 | "MBOX Bsy vport: cmd:x%x mb:x%x x%x", | |
4885 | (uint32_t)mb->mbxCommand, | |
4886 | mb->un.varWords[0], mb->un.varWords[1]); | |
4887 | } | |
4888 | else { | |
4889 | lpfc_debugfs_disc_trc(phba->pport, | |
4890 | LPFC_DISC_TRC_MBOX, | |
4891 | "MBOX Bsy: cmd:x%x mb:x%x x%x", | |
4892 | (uint32_t)mb->mbxCommand, | |
4893 | mb->un.varWords[0], mb->un.varWords[1]); | |
4894 | } | |
4895 | ||
2e0fef85 | 4896 | return MBX_BUSY; |
dea3101e | 4897 | } |
4898 | ||
dea3101e | 4899 | psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE; |
4900 | ||
4901 | /* If we are not polling, we MUST be in SLI2 mode */ | |
4902 | if (flag != MBX_POLL) { | |
3772a991 | 4903 | if (!(psli->sli_flag & LPFC_SLI_ACTIVE) && |
41415862 | 4904 | (mb->mbxCommand != MBX_KILL_BOARD)) { |
dea3101e | 4905 | psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; |
2e0fef85 | 4906 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); |
dea3101e | 4907 | /* Mbox command <mbxCommand> cannot issue */ |
3772a991 JS |
4908 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, |
4909 | "(%d):2531 Mailbox command x%x " | |
4910 | "cannot issue Data: x%x x%x\n", | |
4911 | pmbox->vport ? pmbox->vport->vpi : 0, | |
4912 | pmbox->u.mb.mbxCommand, | |
4913 | psli->sli_flag, flag); | |
58da1ffb | 4914 | goto out_not_finished; |
dea3101e | 4915 | } |
4916 | /* timeout active mbox command */ | |
a309a6b6 JS |
4917 | mod_timer(&psli->mbox_tmo, (jiffies + |
4918 | (HZ * lpfc_mbox_tmo_val(phba, mb->mbxCommand)))); | |
dea3101e | 4919 | } |
4920 | ||
4921 | /* Mailbox cmd <cmd> issue */ | |
ed957684 | 4922 | lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI, |
e8b62011 | 4923 | "(%d):0309 Mailbox cmd x%x issue Data: x%x x%x " |
92d7f7b0 | 4924 | "x%x\n", |
e8b62011 | 4925 | pmbox->vport ? pmbox->vport->vpi : 0, |
92d7f7b0 JS |
4926 | mb->mbxCommand, phba->pport->port_state, |
4927 | psli->sli_flag, flag); | |
dea3101e | 4928 | |
858c9f6c JS |
4929 | if (mb->mbxCommand != MBX_HEARTBEAT) { |
4930 | if (pmbox->vport) { | |
4931 | lpfc_debugfs_disc_trc(pmbox->vport, | |
4932 | LPFC_DISC_TRC_MBOX_VPORT, | |
4933 | "MBOX Send vport: cmd:x%x mb:x%x x%x", | |
4934 | (uint32_t)mb->mbxCommand, | |
4935 | mb->un.varWords[0], mb->un.varWords[1]); | |
4936 | } | |
4937 | else { | |
4938 | lpfc_debugfs_disc_trc(phba->pport, | |
4939 | LPFC_DISC_TRC_MBOX, | |
4940 | "MBOX Send: cmd:x%x mb:x%x x%x", | |
4941 | (uint32_t)mb->mbxCommand, | |
4942 | mb->un.varWords[0], mb->un.varWords[1]); | |
4943 | } | |
4944 | } | |
4945 | ||
dea3101e | 4946 | psli->slistat.mbox_cmd++; |
4947 | evtctr = psli->slistat.mbox_event; | |
4948 | ||
4949 | /* next set own bit for the adapter and copy over command word */ | |
4950 | mb->mbxOwner = OWN_CHIP; | |
4951 | ||
3772a991 | 4952 | if (psli->sli_flag & LPFC_SLI_ACTIVE) { |
7a470277 JS |
4953 | /* Populate mbox extension offset word. */ |
4954 | if (pmbox->in_ext_byte_len || pmbox->out_ext_byte_len) { | |
4955 | *(((uint32_t *)mb) + pmbox->mbox_offset_word) | |
4956 | = (uint8_t *)phba->mbox_ext | |
4957 | - (uint8_t *)phba->mbox; | |
4958 | } | |
4959 | ||
4960 | /* Copy the mailbox extension data */ | |
4961 | if (pmbox->in_ext_byte_len && pmbox->context2) { | |
4962 | lpfc_sli_pcimem_bcopy(pmbox->context2, | |
4963 | (uint8_t *)phba->mbox_ext, | |
4964 | pmbox->in_ext_byte_len); | |
4965 | } | |
4966 | /* Copy command data to host SLIM area */ | |
34b02dcd | 4967 | lpfc_sli_pcimem_bcopy(mb, phba->mbox, MAILBOX_CMD_SIZE); |
dea3101e | 4968 | } else { |
7a470277 JS |
4969 | /* Populate mbox extension offset word. */ |
4970 | if (pmbox->in_ext_byte_len || pmbox->out_ext_byte_len) | |
4971 | *(((uint32_t *)mb) + pmbox->mbox_offset_word) | |
4972 | = MAILBOX_HBA_EXT_OFFSET; | |
4973 | ||
4974 | /* Copy the mailbox extension data */ | |
4975 | if (pmbox->in_ext_byte_len && pmbox->context2) { | |
4976 | lpfc_memcpy_to_slim(phba->MBslimaddr + | |
4977 | MAILBOX_HBA_EXT_OFFSET, | |
4978 | pmbox->context2, pmbox->in_ext_byte_len); | |
4979 | ||
4980 | } | |
9290831f | 4981 | if (mb->mbxCommand == MBX_CONFIG_PORT) { |
dea3101e | 4982 | /* copy command data into host mbox for cmpl */ |
34b02dcd | 4983 | lpfc_sli_pcimem_bcopy(mb, phba->mbox, MAILBOX_CMD_SIZE); |
dea3101e | 4984 | } |
4985 | ||
4986 | /* First copy mbox command data to HBA SLIM, skip past first | |
4987 | word */ | |
4988 | to_slim = phba->MBslimaddr + sizeof (uint32_t); | |
4989 | lpfc_memcpy_to_slim(to_slim, &mb->un.varWords[0], | |
4990 | MAILBOX_CMD_SIZE - sizeof (uint32_t)); | |
4991 | ||
4992 | /* Next copy over first word, with mbxOwner set */ | |
34b02dcd | 4993 | ldata = *((uint32_t *)mb); |
dea3101e | 4994 | to_slim = phba->MBslimaddr; |
4995 | writel(ldata, to_slim); | |
4996 | readl(to_slim); /* flush */ | |
4997 | ||
4998 | if (mb->mbxCommand == MBX_CONFIG_PORT) { | |
4999 | /* switch over to host mailbox */ | |
3772a991 | 5000 | psli->sli_flag |= LPFC_SLI_ACTIVE; |
dea3101e | 5001 | } |
5002 | } | |
5003 | ||
5004 | wmb(); | |
dea3101e | 5005 | |
5006 | switch (flag) { | |
5007 | case MBX_NOWAIT: | |
09372820 | 5008 | /* Set up reference to mailbox command */ |
dea3101e | 5009 | psli->mbox_active = pmbox; |
09372820 JS |
5010 | /* Interrupt board to do it */ |
5011 | writel(CA_MBATT, phba->CAregaddr); | |
5012 | readl(phba->CAregaddr); /* flush */ | |
5013 | /* Don't wait for it to finish, just return */ | |
dea3101e | 5014 | break; |
5015 | ||
5016 | case MBX_POLL: | |
09372820 | 5017 | /* Set up null reference to mailbox command */ |
dea3101e | 5018 | psli->mbox_active = NULL; |
09372820 JS |
5019 | /* Interrupt board to do it */ |
5020 | writel(CA_MBATT, phba->CAregaddr); | |
5021 | readl(phba->CAregaddr); /* flush */ | |
5022 | ||
3772a991 | 5023 | if (psli->sli_flag & LPFC_SLI_ACTIVE) { |
dea3101e | 5024 | /* First read mbox status word */ |
34b02dcd | 5025 | word0 = *((uint32_t *)phba->mbox); |
dea3101e | 5026 | word0 = le32_to_cpu(word0); |
5027 | } else { | |
5028 | /* First read mbox status word */ | |
5029 | word0 = readl(phba->MBslimaddr); | |
5030 | } | |
5031 | ||
5032 | /* Read the HBA Host Attention Register */ | |
5033 | ha_copy = readl(phba->HAregaddr); | |
09372820 JS |
5034 | timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, |
5035 | mb->mbxCommand) * | |
5036 | 1000) + jiffies; | |
5037 | i = 0; | |
dea3101e | 5038 | /* Wait for command to complete */ |
41415862 JW |
5039 | while (((word0 & OWN_CHIP) == OWN_CHIP) || |
5040 | (!(ha_copy & HA_MBATT) && | |
2e0fef85 | 5041 | (phba->link_state > LPFC_WARM_START))) { |
09372820 | 5042 | if (time_after(jiffies, timeout)) { |
dea3101e | 5043 | psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; |
2e0fef85 | 5044 | spin_unlock_irqrestore(&phba->hbalock, |
dea3101e | 5045 | drvr_flag); |
58da1ffb | 5046 | goto out_not_finished; |
dea3101e | 5047 | } |
5048 | ||
5049 | /* Check if we took a mbox interrupt while we were | |
5050 | polling */ | |
5051 | if (((word0 & OWN_CHIP) != OWN_CHIP) | |
5052 | && (evtctr != psli->slistat.mbox_event)) | |
5053 | break; | |
5054 | ||
09372820 JS |
5055 | if (i++ > 10) { |
5056 | spin_unlock_irqrestore(&phba->hbalock, | |
5057 | drvr_flag); | |
5058 | msleep(1); | |
5059 | spin_lock_irqsave(&phba->hbalock, drvr_flag); | |
5060 | } | |
dea3101e | 5061 | |
3772a991 | 5062 | if (psli->sli_flag & LPFC_SLI_ACTIVE) { |
dea3101e | 5063 | /* First copy command data */ |
34b02dcd | 5064 | word0 = *((uint32_t *)phba->mbox); |
dea3101e | 5065 | word0 = le32_to_cpu(word0); |
5066 | if (mb->mbxCommand == MBX_CONFIG_PORT) { | |
5067 | MAILBOX_t *slimmb; | |
34b02dcd | 5068 | uint32_t slimword0; |
dea3101e | 5069 | /* Check real SLIM for any errors */ |
5070 | slimword0 = readl(phba->MBslimaddr); | |
5071 | slimmb = (MAILBOX_t *) & slimword0; | |
5072 | if (((slimword0 & OWN_CHIP) != OWN_CHIP) | |
5073 | && slimmb->mbxStatus) { | |
5074 | psli->sli_flag &= | |
3772a991 | 5075 | ~LPFC_SLI_ACTIVE; |
dea3101e | 5076 | word0 = slimword0; |
5077 | } | |
5078 | } | |
5079 | } else { | |
5080 | /* First copy command data */ | |
5081 | word0 = readl(phba->MBslimaddr); | |
5082 | } | |
5083 | /* Read the HBA Host Attention Register */ | |
5084 | ha_copy = readl(phba->HAregaddr); | |
5085 | } | |
5086 | ||
3772a991 | 5087 | if (psli->sli_flag & LPFC_SLI_ACTIVE) { |
dea3101e | 5088 | /* copy results back to user */ |
34b02dcd | 5089 | lpfc_sli_pcimem_bcopy(phba->mbox, mb, MAILBOX_CMD_SIZE); |
7a470277 JS |
5090 | /* Copy the mailbox extension data */ |
5091 | if (pmbox->out_ext_byte_len && pmbox->context2) { | |
5092 | lpfc_sli_pcimem_bcopy(phba->mbox_ext, | |
5093 | pmbox->context2, | |
5094 | pmbox->out_ext_byte_len); | |
5095 | } | |
dea3101e | 5096 | } else { |
5097 | /* First copy command data */ | |
5098 | lpfc_memcpy_from_slim(mb, phba->MBslimaddr, | |
5099 | MAILBOX_CMD_SIZE); | |
7a470277 JS |
5100 | /* Copy the mailbox extension data */ |
5101 | if (pmbox->out_ext_byte_len && pmbox->context2) { | |
5102 | lpfc_memcpy_from_slim(pmbox->context2, | |
5103 | phba->MBslimaddr + | |
5104 | MAILBOX_HBA_EXT_OFFSET, | |
5105 | pmbox->out_ext_byte_len); | |
dea3101e | 5106 | } |
5107 | } | |
5108 | ||
5109 | writel(HA_MBATT, phba->HAregaddr); | |
5110 | readl(phba->HAregaddr); /* flush */ | |
5111 | ||
5112 | psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; | |
5113 | status = mb->mbxStatus; | |
5114 | } | |
5115 | ||
2e0fef85 JS |
5116 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); |
5117 | return status; | |
58da1ffb JS |
5118 | |
5119 | out_not_finished: | |
5120 | if (processing_queue) { | |
da0436e9 | 5121 | pmbox->u.mb.mbxStatus = MBX_NOT_FINISHED; |
58da1ffb JS |
5122 | lpfc_mbox_cmpl_put(phba, pmbox); |
5123 | } | |
5124 | return MBX_NOT_FINISHED; | |
dea3101e | 5125 | } |
5126 | ||
f1126688 JS |
5127 | /** |
5128 | * lpfc_sli4_async_mbox_block - Block posting SLI4 asynchronous mailbox command | |
5129 | * @phba: Pointer to HBA context object. | |
5130 | * | |
5131 | * The function blocks the posting of SLI4 asynchronous mailbox commands from | |
5132 | * the driver internal pending mailbox queue. It will then try to wait out the | |
5133 | * possible outstanding mailbox command before return. | |
5134 | * | |
5135 | * Returns: | |
5136 | * 0 - the outstanding mailbox command completed; otherwise, the wait for | |
5137 | * the outstanding mailbox command timed out. | |
5138 | **/ | |
5139 | static int | |
5140 | lpfc_sli4_async_mbox_block(struct lpfc_hba *phba) | |
5141 | { | |
5142 | struct lpfc_sli *psli = &phba->sli; | |
5143 | uint8_t actcmd = MBX_HEARTBEAT; | |
5144 | int rc = 0; | |
5145 | unsigned long timeout; | |
5146 | ||
5147 | /* Mark the asynchronous mailbox command posting as blocked */ | |
5148 | spin_lock_irq(&phba->hbalock); | |
5149 | psli->sli_flag |= LPFC_SLI_ASYNC_MBX_BLK; | |
5150 | if (phba->sli.mbox_active) | |
5151 | actcmd = phba->sli.mbox_active->u.mb.mbxCommand; | |
5152 | spin_unlock_irq(&phba->hbalock); | |
5153 | /* Determine how long we might wait for the active mailbox | |
5154 | * command to be gracefully completed by firmware. | |
5155 | */ | |
5156 | timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, actcmd) * 1000) + | |
5157 | jiffies; | |
5158 | /* Wait for the outstnading mailbox command to complete */ | |
5159 | while (phba->sli.mbox_active) { | |
5160 | /* Check active mailbox complete status every 2ms */ | |
5161 | msleep(2); | |
5162 | if (time_after(jiffies, timeout)) { | |
5163 | /* Timeout, marked the outstanding cmd not complete */ | |
5164 | rc = 1; | |
5165 | break; | |
5166 | } | |
5167 | } | |
5168 | ||
5169 | /* Can not cleanly block async mailbox command, fails it */ | |
5170 | if (rc) { | |
5171 | spin_lock_irq(&phba->hbalock); | |
5172 | psli->sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK; | |
5173 | spin_unlock_irq(&phba->hbalock); | |
5174 | } | |
5175 | return rc; | |
5176 | } | |
5177 | ||
5178 | /** | |
5179 | * lpfc_sli4_async_mbox_unblock - Block posting SLI4 async mailbox command | |
5180 | * @phba: Pointer to HBA context object. | |
5181 | * | |
5182 | * The function unblocks and resume posting of SLI4 asynchronous mailbox | |
5183 | * commands from the driver internal pending mailbox queue. It makes sure | |
5184 | * that there is no outstanding mailbox command before resuming posting | |
5185 | * asynchronous mailbox commands. If, for any reason, there is outstanding | |
5186 | * mailbox command, it will try to wait it out before resuming asynchronous | |
5187 | * mailbox command posting. | |
5188 | **/ | |
5189 | static void | |
5190 | lpfc_sli4_async_mbox_unblock(struct lpfc_hba *phba) | |
5191 | { | |
5192 | struct lpfc_sli *psli = &phba->sli; | |
5193 | ||
5194 | spin_lock_irq(&phba->hbalock); | |
5195 | if (!(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) { | |
5196 | /* Asynchronous mailbox posting is not blocked, do nothing */ | |
5197 | spin_unlock_irq(&phba->hbalock); | |
5198 | return; | |
5199 | } | |
5200 | ||
5201 | /* Outstanding synchronous mailbox command is guaranteed to be done, | |
5202 | * successful or timeout, after timing-out the outstanding mailbox | |
5203 | * command shall always be removed, so just unblock posting async | |
5204 | * mailbox command and resume | |
5205 | */ | |
5206 | psli->sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK; | |
5207 | spin_unlock_irq(&phba->hbalock); | |
5208 | ||
5209 | /* wake up worker thread to post asynchronlous mailbox command */ | |
5210 | lpfc_worker_wake_up(phba); | |
5211 | } | |
5212 | ||
da0436e9 JS |
5213 | /** |
5214 | * lpfc_sli4_post_sync_mbox - Post an SLI4 mailbox to the bootstrap mailbox | |
5215 | * @phba: Pointer to HBA context object. | |
5216 | * @mboxq: Pointer to mailbox object. | |
5217 | * | |
5218 | * The function posts a mailbox to the port. The mailbox is expected | |
5219 | * to be comletely filled in and ready for the port to operate on it. | |
5220 | * This routine executes a synchronous completion operation on the | |
5221 | * mailbox by polling for its completion. | |
5222 | * | |
5223 | * The caller must not be holding any locks when calling this routine. | |
5224 | * | |
5225 | * Returns: | |
5226 | * MBX_SUCCESS - mailbox posted successfully | |
5227 | * Any of the MBX error values. | |
5228 | **/ | |
5229 | static int | |
5230 | lpfc_sli4_post_sync_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) | |
5231 | { | |
5232 | int rc = MBX_SUCCESS; | |
5233 | unsigned long iflag; | |
5234 | uint32_t db_ready; | |
5235 | uint32_t mcqe_status; | |
5236 | uint32_t mbx_cmnd; | |
5237 | unsigned long timeout; | |
5238 | struct lpfc_sli *psli = &phba->sli; | |
5239 | struct lpfc_mqe *mb = &mboxq->u.mqe; | |
5240 | struct lpfc_bmbx_create *mbox_rgn; | |
5241 | struct dma_address *dma_address; | |
5242 | struct lpfc_register bmbx_reg; | |
5243 | ||
5244 | /* | |
5245 | * Only one mailbox can be active to the bootstrap mailbox region | |
5246 | * at a time and there is no queueing provided. | |
5247 | */ | |
5248 | spin_lock_irqsave(&phba->hbalock, iflag); | |
5249 | if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) { | |
5250 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
5251 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, | |
5252 | "(%d):2532 Mailbox command x%x (x%x) " | |
5253 | "cannot issue Data: x%x x%x\n", | |
5254 | mboxq->vport ? mboxq->vport->vpi : 0, | |
5255 | mboxq->u.mb.mbxCommand, | |
5256 | lpfc_sli4_mbox_opcode_get(phba, mboxq), | |
5257 | psli->sli_flag, MBX_POLL); | |
5258 | return MBXERR_ERROR; | |
5259 | } | |
5260 | /* The server grabs the token and owns it until release */ | |
5261 | psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE; | |
5262 | phba->sli.mbox_active = mboxq; | |
5263 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
5264 | ||
5265 | /* | |
5266 | * Initialize the bootstrap memory region to avoid stale data areas | |
5267 | * in the mailbox post. Then copy the caller's mailbox contents to | |
5268 | * the bmbx mailbox region. | |
5269 | */ | |
5270 | mbx_cmnd = bf_get(lpfc_mqe_command, mb); | |
5271 | memset(phba->sli4_hba.bmbx.avirt, 0, sizeof(struct lpfc_bmbx_create)); | |
5272 | lpfc_sli_pcimem_bcopy(mb, phba->sli4_hba.bmbx.avirt, | |
5273 | sizeof(struct lpfc_mqe)); | |
5274 | ||
5275 | /* Post the high mailbox dma address to the port and wait for ready. */ | |
5276 | dma_address = &phba->sli4_hba.bmbx.dma_address; | |
5277 | writel(dma_address->addr_hi, phba->sli4_hba.BMBXregaddr); | |
5278 | ||
5279 | timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, mbx_cmnd) | |
5280 | * 1000) + jiffies; | |
5281 | do { | |
5282 | bmbx_reg.word0 = readl(phba->sli4_hba.BMBXregaddr); | |
5283 | db_ready = bf_get(lpfc_bmbx_rdy, &bmbx_reg); | |
5284 | if (!db_ready) | |
5285 | msleep(2); | |
5286 | ||
5287 | if (time_after(jiffies, timeout)) { | |
5288 | rc = MBXERR_ERROR; | |
5289 | goto exit; | |
5290 | } | |
5291 | } while (!db_ready); | |
5292 | ||
5293 | /* Post the low mailbox dma address to the port. */ | |
5294 | writel(dma_address->addr_lo, phba->sli4_hba.BMBXregaddr); | |
5295 | timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, mbx_cmnd) | |
5296 | * 1000) + jiffies; | |
5297 | do { | |
5298 | bmbx_reg.word0 = readl(phba->sli4_hba.BMBXregaddr); | |
5299 | db_ready = bf_get(lpfc_bmbx_rdy, &bmbx_reg); | |
5300 | if (!db_ready) | |
5301 | msleep(2); | |
5302 | ||
5303 | if (time_after(jiffies, timeout)) { | |
5304 | rc = MBXERR_ERROR; | |
5305 | goto exit; | |
5306 | } | |
5307 | } while (!db_ready); | |
5308 | ||
5309 | /* | |
5310 | * Read the CQ to ensure the mailbox has completed. | |
5311 | * If so, update the mailbox status so that the upper layers | |
5312 | * can complete the request normally. | |
5313 | */ | |
5314 | lpfc_sli_pcimem_bcopy(phba->sli4_hba.bmbx.avirt, mb, | |
5315 | sizeof(struct lpfc_mqe)); | |
5316 | mbox_rgn = (struct lpfc_bmbx_create *) phba->sli4_hba.bmbx.avirt; | |
5317 | lpfc_sli_pcimem_bcopy(&mbox_rgn->mcqe, &mboxq->mcqe, | |
5318 | sizeof(struct lpfc_mcqe)); | |
5319 | mcqe_status = bf_get(lpfc_mcqe_status, &mbox_rgn->mcqe); | |
5320 | ||
5321 | /* Prefix the mailbox status with range x4000 to note SLI4 status. */ | |
5322 | if (mcqe_status != MB_CQE_STATUS_SUCCESS) { | |
5323 | bf_set(lpfc_mqe_status, mb, LPFC_MBX_ERROR_RANGE | mcqe_status); | |
5324 | rc = MBXERR_ERROR; | |
d7c47992 JS |
5325 | } else |
5326 | lpfc_sli4_swap_str(phba, mboxq); | |
da0436e9 JS |
5327 | |
5328 | lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI, | |
5329 | "(%d):0356 Mailbox cmd x%x (x%x) Status x%x " | |
5330 | "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x" | |
5331 | " x%x x%x CQ: x%x x%x x%x x%x\n", | |
5332 | mboxq->vport ? mboxq->vport->vpi : 0, | |
5333 | mbx_cmnd, lpfc_sli4_mbox_opcode_get(phba, mboxq), | |
5334 | bf_get(lpfc_mqe_status, mb), | |
5335 | mb->un.mb_words[0], mb->un.mb_words[1], | |
5336 | mb->un.mb_words[2], mb->un.mb_words[3], | |
5337 | mb->un.mb_words[4], mb->un.mb_words[5], | |
5338 | mb->un.mb_words[6], mb->un.mb_words[7], | |
5339 | mb->un.mb_words[8], mb->un.mb_words[9], | |
5340 | mb->un.mb_words[10], mb->un.mb_words[11], | |
5341 | mb->un.mb_words[12], mboxq->mcqe.word0, | |
5342 | mboxq->mcqe.mcqe_tag0, mboxq->mcqe.mcqe_tag1, | |
5343 | mboxq->mcqe.trailer); | |
5344 | exit: | |
5345 | /* We are holding the token, no needed for lock when release */ | |
5346 | spin_lock_irqsave(&phba->hbalock, iflag); | |
5347 | psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; | |
5348 | phba->sli.mbox_active = NULL; | |
5349 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
5350 | return rc; | |
5351 | } | |
5352 | ||
5353 | /** | |
5354 | * lpfc_sli_issue_mbox_s4 - Issue an SLI4 mailbox command to firmware | |
5355 | * @phba: Pointer to HBA context object. | |
5356 | * @pmbox: Pointer to mailbox object. | |
5357 | * @flag: Flag indicating how the mailbox need to be processed. | |
5358 | * | |
5359 | * This function is called by discovery code and HBA management code to submit | |
5360 | * a mailbox command to firmware with SLI-4 interface spec. | |
5361 | * | |
5362 | * Return codes the caller owns the mailbox command after the return of the | |
5363 | * function. | |
5364 | **/ | |
5365 | static int | |
5366 | lpfc_sli_issue_mbox_s4(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq, | |
5367 | uint32_t flag) | |
5368 | { | |
5369 | struct lpfc_sli *psli = &phba->sli; | |
5370 | unsigned long iflags; | |
5371 | int rc; | |
5372 | ||
8fa38513 JS |
5373 | rc = lpfc_mbox_dev_check(phba); |
5374 | if (unlikely(rc)) { | |
5375 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, | |
5376 | "(%d):2544 Mailbox command x%x (x%x) " | |
5377 | "cannot issue Data: x%x x%x\n", | |
5378 | mboxq->vport ? mboxq->vport->vpi : 0, | |
5379 | mboxq->u.mb.mbxCommand, | |
5380 | lpfc_sli4_mbox_opcode_get(phba, mboxq), | |
5381 | psli->sli_flag, flag); | |
5382 | goto out_not_finished; | |
5383 | } | |
5384 | ||
da0436e9 JS |
5385 | /* Detect polling mode and jump to a handler */ |
5386 | if (!phba->sli4_hba.intr_enable) { | |
5387 | if (flag == MBX_POLL) | |
5388 | rc = lpfc_sli4_post_sync_mbox(phba, mboxq); | |
5389 | else | |
5390 | rc = -EIO; | |
5391 | if (rc != MBX_SUCCESS) | |
5392 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, | |
5393 | "(%d):2541 Mailbox command x%x " | |
5394 | "(x%x) cannot issue Data: x%x x%x\n", | |
5395 | mboxq->vport ? mboxq->vport->vpi : 0, | |
5396 | mboxq->u.mb.mbxCommand, | |
5397 | lpfc_sli4_mbox_opcode_get(phba, mboxq), | |
5398 | psli->sli_flag, flag); | |
5399 | return rc; | |
5400 | } else if (flag == MBX_POLL) { | |
f1126688 JS |
5401 | lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI, |
5402 | "(%d):2542 Try to issue mailbox command " | |
5403 | "x%x (x%x) synchronously ahead of async" | |
5404 | "mailbox command queue: x%x x%x\n", | |
da0436e9 JS |
5405 | mboxq->vport ? mboxq->vport->vpi : 0, |
5406 | mboxq->u.mb.mbxCommand, | |
5407 | lpfc_sli4_mbox_opcode_get(phba, mboxq), | |
5408 | psli->sli_flag, flag); | |
f1126688 JS |
5409 | /* Try to block the asynchronous mailbox posting */ |
5410 | rc = lpfc_sli4_async_mbox_block(phba); | |
5411 | if (!rc) { | |
5412 | /* Successfully blocked, now issue sync mbox cmd */ | |
5413 | rc = lpfc_sli4_post_sync_mbox(phba, mboxq); | |
5414 | if (rc != MBX_SUCCESS) | |
5415 | lpfc_printf_log(phba, KERN_ERR, | |
5416 | LOG_MBOX | LOG_SLI, | |
5417 | "(%d):2597 Mailbox command " | |
5418 | "x%x (x%x) cannot issue " | |
5419 | "Data: x%x x%x\n", | |
5420 | mboxq->vport ? | |
5421 | mboxq->vport->vpi : 0, | |
5422 | mboxq->u.mb.mbxCommand, | |
5423 | lpfc_sli4_mbox_opcode_get(phba, | |
5424 | mboxq), | |
5425 | psli->sli_flag, flag); | |
5426 | /* Unblock the async mailbox posting afterward */ | |
5427 | lpfc_sli4_async_mbox_unblock(phba); | |
5428 | } | |
5429 | return rc; | |
da0436e9 JS |
5430 | } |
5431 | ||
5432 | /* Now, interrupt mode asynchrous mailbox command */ | |
5433 | rc = lpfc_mbox_cmd_check(phba, mboxq); | |
5434 | if (rc) { | |
5435 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, | |
5436 | "(%d):2543 Mailbox command x%x (x%x) " | |
5437 | "cannot issue Data: x%x x%x\n", | |
5438 | mboxq->vport ? mboxq->vport->vpi : 0, | |
5439 | mboxq->u.mb.mbxCommand, | |
5440 | lpfc_sli4_mbox_opcode_get(phba, mboxq), | |
5441 | psli->sli_flag, flag); | |
5442 | goto out_not_finished; | |
5443 | } | |
da0436e9 JS |
5444 | |
5445 | /* Put the mailbox command to the driver internal FIFO */ | |
5446 | psli->slistat.mbox_busy++; | |
5447 | spin_lock_irqsave(&phba->hbalock, iflags); | |
5448 | lpfc_mbox_put(phba, mboxq); | |
5449 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
5450 | lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI, | |
5451 | "(%d):0354 Mbox cmd issue - Enqueue Data: " | |
5452 | "x%x (x%x) x%x x%x x%x\n", | |
5453 | mboxq->vport ? mboxq->vport->vpi : 0xffffff, | |
5454 | bf_get(lpfc_mqe_command, &mboxq->u.mqe), | |
5455 | lpfc_sli4_mbox_opcode_get(phba, mboxq), | |
5456 | phba->pport->port_state, | |
5457 | psli->sli_flag, MBX_NOWAIT); | |
5458 | /* Wake up worker thread to transport mailbox command from head */ | |
5459 | lpfc_worker_wake_up(phba); | |
5460 | ||
5461 | return MBX_BUSY; | |
5462 | ||
5463 | out_not_finished: | |
5464 | return MBX_NOT_FINISHED; | |
5465 | } | |
5466 | ||
5467 | /** | |
5468 | * lpfc_sli4_post_async_mbox - Post an SLI4 mailbox command to device | |
5469 | * @phba: Pointer to HBA context object. | |
5470 | * | |
5471 | * This function is called by worker thread to send a mailbox command to | |
5472 | * SLI4 HBA firmware. | |
5473 | * | |
5474 | **/ | |
5475 | int | |
5476 | lpfc_sli4_post_async_mbox(struct lpfc_hba *phba) | |
5477 | { | |
5478 | struct lpfc_sli *psli = &phba->sli; | |
5479 | LPFC_MBOXQ_t *mboxq; | |
5480 | int rc = MBX_SUCCESS; | |
5481 | unsigned long iflags; | |
5482 | struct lpfc_mqe *mqe; | |
5483 | uint32_t mbx_cmnd; | |
5484 | ||
5485 | /* Check interrupt mode before post async mailbox command */ | |
5486 | if (unlikely(!phba->sli4_hba.intr_enable)) | |
5487 | return MBX_NOT_FINISHED; | |
5488 | ||
5489 | /* Check for mailbox command service token */ | |
5490 | spin_lock_irqsave(&phba->hbalock, iflags); | |
5491 | if (unlikely(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) { | |
5492 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
5493 | return MBX_NOT_FINISHED; | |
5494 | } | |
5495 | if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) { | |
5496 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
5497 | return MBX_NOT_FINISHED; | |
5498 | } | |
5499 | if (unlikely(phba->sli.mbox_active)) { | |
5500 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
5501 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, | |
5502 | "0384 There is pending active mailbox cmd\n"); | |
5503 | return MBX_NOT_FINISHED; | |
5504 | } | |
5505 | /* Take the mailbox command service token */ | |
5506 | psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE; | |
5507 | ||
5508 | /* Get the next mailbox command from head of queue */ | |
5509 | mboxq = lpfc_mbox_get(phba); | |
5510 | ||
5511 | /* If no more mailbox command waiting for post, we're done */ | |
5512 | if (!mboxq) { | |
5513 | psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; | |
5514 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
5515 | return MBX_SUCCESS; | |
5516 | } | |
5517 | phba->sli.mbox_active = mboxq; | |
5518 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
5519 | ||
5520 | /* Check device readiness for posting mailbox command */ | |
5521 | rc = lpfc_mbox_dev_check(phba); | |
5522 | if (unlikely(rc)) | |
5523 | /* Driver clean routine will clean up pending mailbox */ | |
5524 | goto out_not_finished; | |
5525 | ||
5526 | /* Prepare the mbox command to be posted */ | |
5527 | mqe = &mboxq->u.mqe; | |
5528 | mbx_cmnd = bf_get(lpfc_mqe_command, mqe); | |
5529 | ||
5530 | /* Start timer for the mbox_tmo and log some mailbox post messages */ | |
5531 | mod_timer(&psli->mbox_tmo, (jiffies + | |
5532 | (HZ * lpfc_mbox_tmo_val(phba, mbx_cmnd)))); | |
5533 | ||
5534 | lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI, | |
5535 | "(%d):0355 Mailbox cmd x%x (x%x) issue Data: " | |
5536 | "x%x x%x\n", | |
5537 | mboxq->vport ? mboxq->vport->vpi : 0, mbx_cmnd, | |
5538 | lpfc_sli4_mbox_opcode_get(phba, mboxq), | |
5539 | phba->pport->port_state, psli->sli_flag); | |
5540 | ||
5541 | if (mbx_cmnd != MBX_HEARTBEAT) { | |
5542 | if (mboxq->vport) { | |
5543 | lpfc_debugfs_disc_trc(mboxq->vport, | |
5544 | LPFC_DISC_TRC_MBOX_VPORT, | |
5545 | "MBOX Send vport: cmd:x%x mb:x%x x%x", | |
5546 | mbx_cmnd, mqe->un.mb_words[0], | |
5547 | mqe->un.mb_words[1]); | |
5548 | } else { | |
5549 | lpfc_debugfs_disc_trc(phba->pport, | |
5550 | LPFC_DISC_TRC_MBOX, | |
5551 | "MBOX Send: cmd:x%x mb:x%x x%x", | |
5552 | mbx_cmnd, mqe->un.mb_words[0], | |
5553 | mqe->un.mb_words[1]); | |
5554 | } | |
5555 | } | |
5556 | psli->slistat.mbox_cmd++; | |
5557 | ||
5558 | /* Post the mailbox command to the port */ | |
5559 | rc = lpfc_sli4_mq_put(phba->sli4_hba.mbx_wq, mqe); | |
5560 | if (rc != MBX_SUCCESS) { | |
5561 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, | |
5562 | "(%d):2533 Mailbox command x%x (x%x) " | |
5563 | "cannot issue Data: x%x x%x\n", | |
5564 | mboxq->vport ? mboxq->vport->vpi : 0, | |
5565 | mboxq->u.mb.mbxCommand, | |
5566 | lpfc_sli4_mbox_opcode_get(phba, mboxq), | |
5567 | psli->sli_flag, MBX_NOWAIT); | |
5568 | goto out_not_finished; | |
5569 | } | |
5570 | ||
5571 | return rc; | |
5572 | ||
5573 | out_not_finished: | |
5574 | spin_lock_irqsave(&phba->hbalock, iflags); | |
5575 | mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED; | |
5576 | __lpfc_mbox_cmpl_put(phba, mboxq); | |
5577 | /* Release the token */ | |
5578 | psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; | |
5579 | phba->sli.mbox_active = NULL; | |
5580 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
5581 | ||
5582 | return MBX_NOT_FINISHED; | |
5583 | } | |
5584 | ||
5585 | /** | |
5586 | * lpfc_sli_issue_mbox - Wrapper func for issuing mailbox command | |
5587 | * @phba: Pointer to HBA context object. | |
5588 | * @pmbox: Pointer to mailbox object. | |
5589 | * @flag: Flag indicating how the mailbox need to be processed. | |
5590 | * | |
5591 | * This routine wraps the actual SLI3 or SLI4 mailbox issuing routine from | |
5592 | * the API jump table function pointer from the lpfc_hba struct. | |
5593 | * | |
5594 | * Return codes the caller owns the mailbox command after the return of the | |
5595 | * function. | |
5596 | **/ | |
5597 | int | |
5598 | lpfc_sli_issue_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox, uint32_t flag) | |
5599 | { | |
5600 | return phba->lpfc_sli_issue_mbox(phba, pmbox, flag); | |
5601 | } | |
5602 | ||
5603 | /** | |
5604 | * lpfc_mbox_api_table_setup - Set up mbox api fucntion jump table | |
5605 | * @phba: The hba struct for which this call is being executed. | |
5606 | * @dev_grp: The HBA PCI-Device group number. | |
5607 | * | |
5608 | * This routine sets up the mbox interface API function jump table in @phba | |
5609 | * struct. | |
5610 | * Returns: 0 - success, -ENODEV - failure. | |
5611 | **/ | |
5612 | int | |
5613 | lpfc_mbox_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) | |
5614 | { | |
5615 | ||
5616 | switch (dev_grp) { | |
5617 | case LPFC_PCI_DEV_LP: | |
5618 | phba->lpfc_sli_issue_mbox = lpfc_sli_issue_mbox_s3; | |
5619 | phba->lpfc_sli_handle_slow_ring_event = | |
5620 | lpfc_sli_handle_slow_ring_event_s3; | |
5621 | phba->lpfc_sli_hbq_to_firmware = lpfc_sli_hbq_to_firmware_s3; | |
5622 | phba->lpfc_sli_brdrestart = lpfc_sli_brdrestart_s3; | |
5623 | phba->lpfc_sli_brdready = lpfc_sli_brdready_s3; | |
5624 | break; | |
5625 | case LPFC_PCI_DEV_OC: | |
5626 | phba->lpfc_sli_issue_mbox = lpfc_sli_issue_mbox_s4; | |
5627 | phba->lpfc_sli_handle_slow_ring_event = | |
5628 | lpfc_sli_handle_slow_ring_event_s4; | |
5629 | phba->lpfc_sli_hbq_to_firmware = lpfc_sli_hbq_to_firmware_s4; | |
5630 | phba->lpfc_sli_brdrestart = lpfc_sli_brdrestart_s4; | |
5631 | phba->lpfc_sli_brdready = lpfc_sli_brdready_s4; | |
5632 | break; | |
5633 | default: | |
5634 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
5635 | "1420 Invalid HBA PCI-device group: 0x%x\n", | |
5636 | dev_grp); | |
5637 | return -ENODEV; | |
5638 | break; | |
5639 | } | |
5640 | return 0; | |
5641 | } | |
5642 | ||
e59058c4 | 5643 | /** |
3621a710 | 5644 | * __lpfc_sli_ringtx_put - Add an iocb to the txq |
e59058c4 JS |
5645 | * @phba: Pointer to HBA context object. |
5646 | * @pring: Pointer to driver SLI ring object. | |
5647 | * @piocb: Pointer to address of newly added command iocb. | |
5648 | * | |
5649 | * This function is called with hbalock held to add a command | |
5650 | * iocb to the txq when SLI layer cannot submit the command iocb | |
5651 | * to the ring. | |
5652 | **/ | |
2a9bf3d0 | 5653 | void |
92d7f7b0 | 5654 | __lpfc_sli_ringtx_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, |
2e0fef85 | 5655 | struct lpfc_iocbq *piocb) |
dea3101e | 5656 | { |
5657 | /* Insert the caller's iocb in the txq tail for later processing. */ | |
5658 | list_add_tail(&piocb->list, &pring->txq); | |
5659 | pring->txq_cnt++; | |
dea3101e | 5660 | } |
5661 | ||
e59058c4 | 5662 | /** |
3621a710 | 5663 | * lpfc_sli_next_iocb - Get the next iocb in the txq |
e59058c4 JS |
5664 | * @phba: Pointer to HBA context object. |
5665 | * @pring: Pointer to driver SLI ring object. | |
5666 | * @piocb: Pointer to address of newly added command iocb. | |
5667 | * | |
5668 | * This function is called with hbalock held before a new | |
5669 | * iocb is submitted to the firmware. This function checks | |
5670 | * txq to flush the iocbs in txq to Firmware before | |
5671 | * submitting new iocbs to the Firmware. | |
5672 | * If there are iocbs in the txq which need to be submitted | |
5673 | * to firmware, lpfc_sli_next_iocb returns the first element | |
5674 | * of the txq after dequeuing it from txq. | |
5675 | * If there is no iocb in the txq then the function will return | |
5676 | * *piocb and *piocb is set to NULL. Caller needs to check | |
5677 | * *piocb to find if there are more commands in the txq. | |
5678 | **/ | |
dea3101e | 5679 | static struct lpfc_iocbq * |
5680 | lpfc_sli_next_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
2e0fef85 | 5681 | struct lpfc_iocbq **piocb) |
dea3101e | 5682 | { |
5683 | struct lpfc_iocbq * nextiocb; | |
5684 | ||
5685 | nextiocb = lpfc_sli_ringtx_get(phba, pring); | |
5686 | if (!nextiocb) { | |
5687 | nextiocb = *piocb; | |
5688 | *piocb = NULL; | |
5689 | } | |
5690 | ||
5691 | return nextiocb; | |
5692 | } | |
5693 | ||
e59058c4 | 5694 | /** |
3772a991 | 5695 | * __lpfc_sli_issue_iocb_s3 - SLI3 device lockless ver of lpfc_sli_issue_iocb |
e59058c4 | 5696 | * @phba: Pointer to HBA context object. |
3772a991 | 5697 | * @ring_number: SLI ring number to issue iocb on. |
e59058c4 JS |
5698 | * @piocb: Pointer to command iocb. |
5699 | * @flag: Flag indicating if this command can be put into txq. | |
5700 | * | |
3772a991 JS |
5701 | * __lpfc_sli_issue_iocb_s3 is used by other functions in the driver to issue |
5702 | * an iocb command to an HBA with SLI-3 interface spec. If the PCI slot is | |
5703 | * recovering from error state, if HBA is resetting or if LPFC_STOP_IOCB_EVENT | |
5704 | * flag is turned on, the function returns IOCB_ERROR. When the link is down, | |
5705 | * this function allows only iocbs for posting buffers. This function finds | |
5706 | * next available slot in the command ring and posts the command to the | |
5707 | * available slot and writes the port attention register to request HBA start | |
5708 | * processing new iocb. If there is no slot available in the ring and | |
5709 | * flag & SLI_IOCB_RET_IOCB is set, the new iocb is added to the txq, otherwise | |
5710 | * the function returns IOCB_BUSY. | |
e59058c4 | 5711 | * |
3772a991 JS |
5712 | * This function is called with hbalock held. The function will return success |
5713 | * after it successfully submit the iocb to firmware or after adding to the | |
5714 | * txq. | |
e59058c4 | 5715 | **/ |
98c9ea5c | 5716 | static int |
3772a991 | 5717 | __lpfc_sli_issue_iocb_s3(struct lpfc_hba *phba, uint32_t ring_number, |
dea3101e | 5718 | struct lpfc_iocbq *piocb, uint32_t flag) |
5719 | { | |
5720 | struct lpfc_iocbq *nextiocb; | |
5721 | IOCB_t *iocb; | |
3772a991 | 5722 | struct lpfc_sli_ring *pring = &phba->sli.ring[ring_number]; |
dea3101e | 5723 | |
92d7f7b0 JS |
5724 | if (piocb->iocb_cmpl && (!piocb->vport) && |
5725 | (piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) && | |
5726 | (piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN)) { | |
5727 | lpfc_printf_log(phba, KERN_ERR, | |
5728 | LOG_SLI | LOG_VPORT, | |
e8b62011 | 5729 | "1807 IOCB x%x failed. No vport\n", |
92d7f7b0 JS |
5730 | piocb->iocb.ulpCommand); |
5731 | dump_stack(); | |
5732 | return IOCB_ERROR; | |
5733 | } | |
5734 | ||
5735 | ||
8d63f375 LV |
5736 | /* If the PCI channel is in offline state, do not post iocbs. */ |
5737 | if (unlikely(pci_channel_offline(phba->pcidev))) | |
5738 | return IOCB_ERROR; | |
5739 | ||
a257bf90 JS |
5740 | /* If HBA has a deferred error attention, fail the iocb. */ |
5741 | if (unlikely(phba->hba_flag & DEFER_ERATT)) | |
5742 | return IOCB_ERROR; | |
5743 | ||
dea3101e | 5744 | /* |
5745 | * We should never get an IOCB if we are in a < LINK_DOWN state | |
5746 | */ | |
2e0fef85 | 5747 | if (unlikely(phba->link_state < LPFC_LINK_DOWN)) |
dea3101e | 5748 | return IOCB_ERROR; |
5749 | ||
5750 | /* | |
5751 | * Check to see if we are blocking IOCB processing because of a | |
0b727fea | 5752 | * outstanding event. |
dea3101e | 5753 | */ |
0b727fea | 5754 | if (unlikely(pring->flag & LPFC_STOP_IOCB_EVENT)) |
dea3101e | 5755 | goto iocb_busy; |
5756 | ||
2e0fef85 | 5757 | if (unlikely(phba->link_state == LPFC_LINK_DOWN)) { |
dea3101e | 5758 | /* |
2680eeaa | 5759 | * Only CREATE_XRI, CLOSE_XRI, and QUE_RING_BUF |
dea3101e | 5760 | * can be issued if the link is not up. |
5761 | */ | |
5762 | switch (piocb->iocb.ulpCommand) { | |
84774a4d JS |
5763 | case CMD_GEN_REQUEST64_CR: |
5764 | case CMD_GEN_REQUEST64_CX: | |
5765 | if (!(phba->sli.sli_flag & LPFC_MENLO_MAINT) || | |
5766 | (piocb->iocb.un.genreq64.w5.hcsw.Rctl != | |
6a9c52cf | 5767 | FC_RCTL_DD_UNSOL_CMD) || |
84774a4d JS |
5768 | (piocb->iocb.un.genreq64.w5.hcsw.Type != |
5769 | MENLO_TRANSPORT_TYPE)) | |
5770 | ||
5771 | goto iocb_busy; | |
5772 | break; | |
dea3101e | 5773 | case CMD_QUE_RING_BUF_CN: |
5774 | case CMD_QUE_RING_BUF64_CN: | |
dea3101e | 5775 | /* |
5776 | * For IOCBs, like QUE_RING_BUF, that have no rsp ring | |
5777 | * completion, iocb_cmpl MUST be 0. | |
5778 | */ | |
5779 | if (piocb->iocb_cmpl) | |
5780 | piocb->iocb_cmpl = NULL; | |
5781 | /*FALLTHROUGH*/ | |
5782 | case CMD_CREATE_XRI_CR: | |
2680eeaa JS |
5783 | case CMD_CLOSE_XRI_CN: |
5784 | case CMD_CLOSE_XRI_CX: | |
dea3101e | 5785 | break; |
5786 | default: | |
5787 | goto iocb_busy; | |
5788 | } | |
5789 | ||
5790 | /* | |
5791 | * For FCP commands, we must be in a state where we can process link | |
5792 | * attention events. | |
5793 | */ | |
5794 | } else if (unlikely(pring->ringno == phba->sli.fcp_ring && | |
92d7f7b0 | 5795 | !(phba->sli.sli_flag & LPFC_PROCESS_LA))) { |
dea3101e | 5796 | goto iocb_busy; |
92d7f7b0 | 5797 | } |
dea3101e | 5798 | |
dea3101e | 5799 | while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) && |
5800 | (nextiocb = lpfc_sli_next_iocb(phba, pring, &piocb))) | |
5801 | lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb); | |
5802 | ||
5803 | if (iocb) | |
5804 | lpfc_sli_update_ring(phba, pring); | |
5805 | else | |
5806 | lpfc_sli_update_full_ring(phba, pring); | |
5807 | ||
5808 | if (!piocb) | |
5809 | return IOCB_SUCCESS; | |
5810 | ||
5811 | goto out_busy; | |
5812 | ||
5813 | iocb_busy: | |
5814 | pring->stats.iocb_cmd_delay++; | |
5815 | ||
5816 | out_busy: | |
5817 | ||
5818 | if (!(flag & SLI_IOCB_RET_IOCB)) { | |
92d7f7b0 | 5819 | __lpfc_sli_ringtx_put(phba, pring, piocb); |
dea3101e | 5820 | return IOCB_SUCCESS; |
5821 | } | |
5822 | ||
5823 | return IOCB_BUSY; | |
5824 | } | |
5825 | ||
3772a991 | 5826 | /** |
4f774513 JS |
5827 | * lpfc_sli4_bpl2sgl - Convert the bpl/bde to a sgl. |
5828 | * @phba: Pointer to HBA context object. | |
5829 | * @piocb: Pointer to command iocb. | |
5830 | * @sglq: Pointer to the scatter gather queue object. | |
5831 | * | |
5832 | * This routine converts the bpl or bde that is in the IOCB | |
5833 | * to a sgl list for the sli4 hardware. The physical address | |
5834 | * of the bpl/bde is converted back to a virtual address. | |
5835 | * If the IOCB contains a BPL then the list of BDE's is | |
5836 | * converted to sli4_sge's. If the IOCB contains a single | |
5837 | * BDE then it is converted to a single sli_sge. | |
5838 | * The IOCB is still in cpu endianess so the contents of | |
5839 | * the bpl can be used without byte swapping. | |
5840 | * | |
5841 | * Returns valid XRI = Success, NO_XRI = Failure. | |
5842 | **/ | |
5843 | static uint16_t | |
5844 | lpfc_sli4_bpl2sgl(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq, | |
5845 | struct lpfc_sglq *sglq) | |
3772a991 | 5846 | { |
4f774513 JS |
5847 | uint16_t xritag = NO_XRI; |
5848 | struct ulp_bde64 *bpl = NULL; | |
5849 | struct ulp_bde64 bde; | |
5850 | struct sli4_sge *sgl = NULL; | |
5851 | IOCB_t *icmd; | |
5852 | int numBdes = 0; | |
5853 | int i = 0; | |
3772a991 | 5854 | |
4f774513 JS |
5855 | if (!piocbq || !sglq) |
5856 | return xritag; | |
5857 | ||
5858 | sgl = (struct sli4_sge *)sglq->sgl; | |
5859 | icmd = &piocbq->iocb; | |
5860 | if (icmd->un.genreq64.bdl.bdeFlags == BUFF_TYPE_BLP_64) { | |
5861 | numBdes = icmd->un.genreq64.bdl.bdeSize / | |
5862 | sizeof(struct ulp_bde64); | |
5863 | /* The addrHigh and addrLow fields within the IOCB | |
5864 | * have not been byteswapped yet so there is no | |
5865 | * need to swap them back. | |
5866 | */ | |
5867 | bpl = (struct ulp_bde64 *) | |
5868 | ((struct lpfc_dmabuf *)piocbq->context3)->virt; | |
5869 | ||
5870 | if (!bpl) | |
5871 | return xritag; | |
5872 | ||
5873 | for (i = 0; i < numBdes; i++) { | |
5874 | /* Should already be byte swapped. */ | |
28baac74 JS |
5875 | sgl->addr_hi = bpl->addrHigh; |
5876 | sgl->addr_lo = bpl->addrLow; | |
5877 | ||
4f774513 JS |
5878 | if ((i+1) == numBdes) |
5879 | bf_set(lpfc_sli4_sge_last, sgl, 1); | |
5880 | else | |
5881 | bf_set(lpfc_sli4_sge_last, sgl, 0); | |
5882 | sgl->word2 = cpu_to_le32(sgl->word2); | |
28baac74 JS |
5883 | /* swap the size field back to the cpu so we |
5884 | * can assign it to the sgl. | |
5885 | */ | |
5886 | bde.tus.w = le32_to_cpu(bpl->tus.w); | |
5887 | sgl->sge_len = cpu_to_le32(bde.tus.f.bdeSize); | |
4f774513 JS |
5888 | bpl++; |
5889 | sgl++; | |
5890 | } | |
5891 | } else if (icmd->un.genreq64.bdl.bdeFlags == BUFF_TYPE_BDE_64) { | |
5892 | /* The addrHigh and addrLow fields of the BDE have not | |
5893 | * been byteswapped yet so they need to be swapped | |
5894 | * before putting them in the sgl. | |
5895 | */ | |
5896 | sgl->addr_hi = | |
5897 | cpu_to_le32(icmd->un.genreq64.bdl.addrHigh); | |
5898 | sgl->addr_lo = | |
5899 | cpu_to_le32(icmd->un.genreq64.bdl.addrLow); | |
4f774513 JS |
5900 | bf_set(lpfc_sli4_sge_last, sgl, 1); |
5901 | sgl->word2 = cpu_to_le32(sgl->word2); | |
28baac74 JS |
5902 | sgl->sge_len = |
5903 | cpu_to_le32(icmd->un.genreq64.bdl.bdeSize); | |
4f774513 JS |
5904 | } |
5905 | return sglq->sli4_xritag; | |
3772a991 | 5906 | } |
92d7f7b0 | 5907 | |
e59058c4 | 5908 | /** |
4f774513 | 5909 | * lpfc_sli4_scmd_to_wqidx_distr - scsi command to SLI4 WQ index distribution |
e59058c4 | 5910 | * @phba: Pointer to HBA context object. |
e59058c4 | 5911 | * |
4f774513 | 5912 | * This routine performs a round robin SCSI command to SLI4 FCP WQ index |
8fa38513 JS |
5913 | * distribution. This is called by __lpfc_sli_issue_iocb_s4() with the hbalock |
5914 | * held. | |
4f774513 JS |
5915 | * |
5916 | * Return: index into SLI4 fast-path FCP queue index. | |
e59058c4 | 5917 | **/ |
4f774513 | 5918 | static uint32_t |
8fa38513 | 5919 | lpfc_sli4_scmd_to_wqidx_distr(struct lpfc_hba *phba) |
92d7f7b0 | 5920 | { |
8fa38513 JS |
5921 | ++phba->fcp_qidx; |
5922 | if (phba->fcp_qidx >= phba->cfg_fcp_wq_count) | |
5923 | phba->fcp_qidx = 0; | |
92d7f7b0 | 5924 | |
8fa38513 | 5925 | return phba->fcp_qidx; |
92d7f7b0 JS |
5926 | } |
5927 | ||
e59058c4 | 5928 | /** |
4f774513 | 5929 | * lpfc_sli_iocb2wqe - Convert the IOCB to a work queue entry. |
e59058c4 | 5930 | * @phba: Pointer to HBA context object. |
4f774513 JS |
5931 | * @piocb: Pointer to command iocb. |
5932 | * @wqe: Pointer to the work queue entry. | |
e59058c4 | 5933 | * |
4f774513 JS |
5934 | * This routine converts the iocb command to its Work Queue Entry |
5935 | * equivalent. The wqe pointer should not have any fields set when | |
5936 | * this routine is called because it will memcpy over them. | |
5937 | * This routine does not set the CQ_ID or the WQEC bits in the | |
5938 | * wqe. | |
e59058c4 | 5939 | * |
4f774513 | 5940 | * Returns: 0 = Success, IOCB_ERROR = Failure. |
e59058c4 | 5941 | **/ |
cf5bf97e | 5942 | static int |
4f774513 JS |
5943 | lpfc_sli4_iocb2wqe(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq, |
5944 | union lpfc_wqe *wqe) | |
cf5bf97e | 5945 | { |
5ffc266e | 5946 | uint32_t xmit_len = 0, total_len = 0; |
4f774513 JS |
5947 | uint8_t ct = 0; |
5948 | uint32_t fip; | |
5949 | uint32_t abort_tag; | |
5950 | uint8_t command_type = ELS_COMMAND_NON_FIP; | |
5951 | uint8_t cmnd; | |
5952 | uint16_t xritag; | |
5953 | struct ulp_bde64 *bpl = NULL; | |
c868595d | 5954 | uint32_t els_id = ELS_ID_DEFAULT; |
5ffc266e JS |
5955 | int numBdes, i; |
5956 | struct ulp_bde64 bde; | |
4f774513 | 5957 | |
45ed1190 | 5958 | fip = phba->hba_flag & HBA_FIP_SUPPORT; |
4f774513 | 5959 | /* The fcp commands will set command type */ |
0c287589 | 5960 | if (iocbq->iocb_flag & LPFC_IO_FCP) |
4f774513 | 5961 | command_type = FCP_COMMAND; |
c868595d | 5962 | else if (fip && (iocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK)) |
0c287589 JS |
5963 | command_type = ELS_COMMAND_FIP; |
5964 | else | |
5965 | command_type = ELS_COMMAND_NON_FIP; | |
5966 | ||
4f774513 JS |
5967 | /* Some of the fields are in the right position already */ |
5968 | memcpy(wqe, &iocbq->iocb, sizeof(union lpfc_wqe)); | |
5969 | abort_tag = (uint32_t) iocbq->iotag; | |
5970 | xritag = iocbq->sli4_xritag; | |
5971 | wqe->words[7] = 0; /* The ct field has moved so reset */ | |
5972 | /* words0-2 bpl convert bde */ | |
5973 | if (iocbq->iocb.un.genreq64.bdl.bdeFlags == BUFF_TYPE_BLP_64) { | |
5ffc266e JS |
5974 | numBdes = iocbq->iocb.un.genreq64.bdl.bdeSize / |
5975 | sizeof(struct ulp_bde64); | |
4f774513 JS |
5976 | bpl = (struct ulp_bde64 *) |
5977 | ((struct lpfc_dmabuf *)iocbq->context3)->virt; | |
5978 | if (!bpl) | |
5979 | return IOCB_ERROR; | |
cf5bf97e | 5980 | |
4f774513 JS |
5981 | /* Should already be byte swapped. */ |
5982 | wqe->generic.bde.addrHigh = le32_to_cpu(bpl->addrHigh); | |
5983 | wqe->generic.bde.addrLow = le32_to_cpu(bpl->addrLow); | |
5984 | /* swap the size field back to the cpu so we | |
5985 | * can assign it to the sgl. | |
5986 | */ | |
5987 | wqe->generic.bde.tus.w = le32_to_cpu(bpl->tus.w); | |
5ffc266e JS |
5988 | xmit_len = wqe->generic.bde.tus.f.bdeSize; |
5989 | total_len = 0; | |
5990 | for (i = 0; i < numBdes; i++) { | |
5991 | bde.tus.w = le32_to_cpu(bpl[i].tus.w); | |
5992 | total_len += bde.tus.f.bdeSize; | |
5993 | } | |
4f774513 | 5994 | } else |
5ffc266e | 5995 | xmit_len = iocbq->iocb.un.fcpi64.bdl.bdeSize; |
cf5bf97e | 5996 | |
4f774513 JS |
5997 | iocbq->iocb.ulpIoTag = iocbq->iotag; |
5998 | cmnd = iocbq->iocb.ulpCommand; | |
a4bc3379 | 5999 | |
4f774513 JS |
6000 | switch (iocbq->iocb.ulpCommand) { |
6001 | case CMD_ELS_REQUEST64_CR: | |
6002 | if (!iocbq->iocb.ulpLe) { | |
6003 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
6004 | "2007 Only Limited Edition cmd Format" | |
6005 | " supported 0x%x\n", | |
6006 | iocbq->iocb.ulpCommand); | |
6007 | return IOCB_ERROR; | |
6008 | } | |
5ffc266e | 6009 | wqe->els_req.payload_len = xmit_len; |
4f774513 JS |
6010 | /* Els_reguest64 has a TMO */ |
6011 | bf_set(wqe_tmo, &wqe->els_req.wqe_com, | |
6012 | iocbq->iocb.ulpTimeout); | |
6013 | /* Need a VF for word 4 set the vf bit*/ | |
6014 | bf_set(els_req64_vf, &wqe->els_req, 0); | |
6015 | /* And a VFID for word 12 */ | |
6016 | bf_set(els_req64_vfid, &wqe->els_req, 0); | |
6017 | /* | |
6018 | * Set ct field to 3, indicates that the context_tag field | |
6019 | * contains the FCFI and remote N_Port_ID is | |
6020 | * in word 5. | |
6021 | */ | |
6022 | ||
6023 | ct = ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l); | |
6024 | bf_set(lpfc_wqe_gen_context, &wqe->generic, | |
6025 | iocbq->iocb.ulpContext); | |
6026 | ||
4f774513 JS |
6027 | bf_set(lpfc_wqe_gen_ct, &wqe->generic, ct); |
6028 | bf_set(lpfc_wqe_gen_pu, &wqe->generic, 0); | |
6029 | /* CCP CCPE PV PRI in word10 were set in the memcpy */ | |
c868595d JS |
6030 | |
6031 | if (command_type == ELS_COMMAND_FIP) { | |
6032 | els_id = ((iocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK) | |
6033 | >> LPFC_FIP_ELS_ID_SHIFT); | |
6034 | } | |
6035 | bf_set(lpfc_wqe_gen_els_id, &wqe->generic, els_id); | |
6036 | ||
4f774513 | 6037 | break; |
5ffc266e JS |
6038 | case CMD_XMIT_SEQUENCE64_CX: |
6039 | bf_set(lpfc_wqe_gen_context, &wqe->generic, | |
6040 | iocbq->iocb.un.ulpWord[3]); | |
6041 | wqe->generic.word3 = 0; | |
6042 | bf_set(wqe_rcvoxid, &wqe->generic, iocbq->iocb.ulpContext); | |
5ffc266e JS |
6043 | /* The entire sequence is transmitted for this IOCB */ |
6044 | xmit_len = total_len; | |
6045 | cmnd = CMD_XMIT_SEQUENCE64_CR; | |
4f774513 JS |
6046 | case CMD_XMIT_SEQUENCE64_CR: |
6047 | /* word3 iocb=io_tag32 wqe=payload_offset */ | |
6048 | /* payload offset used for multilpe outstanding | |
6049 | * sequences on the same exchange | |
6050 | */ | |
6051 | wqe->words[3] = 0; | |
6052 | /* word4 relative_offset memcpy */ | |
6053 | /* word5 r_ctl/df_ctl memcpy */ | |
6054 | bf_set(lpfc_wqe_gen_pu, &wqe->generic, 0); | |
5ffc266e JS |
6055 | wqe->xmit_sequence.xmit_len = xmit_len; |
6056 | command_type = OTHER_COMMAND; | |
4f774513 JS |
6057 | break; |
6058 | case CMD_XMIT_BCAST64_CN: | |
6059 | /* word3 iocb=iotag32 wqe=payload_len */ | |
6060 | wqe->words[3] = 0; /* no definition for this in wqe */ | |
6061 | /* word4 iocb=rsvd wqe=rsvd */ | |
6062 | /* word5 iocb=rctl/type/df_ctl wqe=rctl/type/df_ctl memcpy */ | |
6063 | /* word6 iocb=ctxt_tag/io_tag wqe=ctxt_tag/xri */ | |
6064 | bf_set(lpfc_wqe_gen_ct, &wqe->generic, | |
6065 | ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l)); | |
6066 | break; | |
6067 | case CMD_FCP_IWRITE64_CR: | |
6068 | command_type = FCP_COMMAND_DATA_OUT; | |
6069 | /* The struct for wqe fcp_iwrite has 3 fields that are somewhat | |
6070 | * confusing. | |
6071 | * word3 is payload_len: byte offset to the sgl entry for the | |
6072 | * fcp_command. | |
6073 | * word4 is total xfer len, same as the IOCB->ulpParameter. | |
6074 | * word5 is initial xfer len 0 = wait for xfer-ready | |
6075 | */ | |
6076 | ||
6077 | /* Always wait for xfer-ready before sending data */ | |
6078 | wqe->fcp_iwrite.initial_xfer_len = 0; | |
6079 | /* word 4 (xfer length) should have been set on the memcpy */ | |
6080 | ||
6081 | /* allow write to fall through to read */ | |
6082 | case CMD_FCP_IREAD64_CR: | |
6083 | /* FCP_CMD is always the 1st sgl entry */ | |
6084 | wqe->fcp_iread.payload_len = | |
5ffc266e | 6085 | xmit_len + sizeof(struct fcp_rsp); |
4f774513 JS |
6086 | |
6087 | /* word 4 (xfer length) should have been set on the memcpy */ | |
6088 | ||
6089 | bf_set(lpfc_wqe_gen_erp, &wqe->generic, | |
6090 | iocbq->iocb.ulpFCP2Rcvy); | |
6091 | bf_set(lpfc_wqe_gen_lnk, &wqe->generic, iocbq->iocb.ulpXS); | |
6092 | /* The XC bit and the XS bit are similar. The driver never | |
6093 | * tracked whether or not the exchange was previouslly open. | |
6094 | * XC = Exchange create, 0 is create. 1 is already open. | |
6095 | * XS = link cmd: 1 do not close the exchange after command. | |
6096 | * XS = 0 close exchange when command completes. | |
6097 | * The only time we would not set the XC bit is when the XS bit | |
6098 | * is set and we are sending our 2nd or greater command on | |
6099 | * this exchange. | |
6100 | */ | |
f1126688 JS |
6101 | /* Always open the exchange */ |
6102 | bf_set(wqe_xc, &wqe->fcp_iread.wqe_com, 0); | |
4f774513 | 6103 | |
f1126688 JS |
6104 | wqe->words[10] &= 0xffff0000; /* zero out ebde count */ |
6105 | bf_set(lpfc_wqe_gen_pu, &wqe->generic, iocbq->iocb.ulpPU); | |
6106 | break; | |
4f774513 JS |
6107 | case CMD_FCP_ICMND64_CR: |
6108 | /* Always open the exchange */ | |
6109 | bf_set(wqe_xc, &wqe->fcp_iread.wqe_com, 0); | |
6110 | ||
f1126688 | 6111 | wqe->words[4] = 0; |
4f774513 | 6112 | wqe->words[10] &= 0xffff0000; /* zero out ebde count */ |
f1126688 | 6113 | bf_set(lpfc_wqe_gen_pu, &wqe->generic, 0); |
4f774513 JS |
6114 | break; |
6115 | case CMD_GEN_REQUEST64_CR: | |
6116 | /* word3 command length is described as byte offset to the | |
6117 | * rsp_data. Would always be 16, sizeof(struct sli4_sge) | |
6118 | * sgl[0] = cmnd | |
6119 | * sgl[1] = rsp. | |
6120 | * | |
6121 | */ | |
5ffc266e | 6122 | wqe->gen_req.command_len = xmit_len; |
4f774513 JS |
6123 | /* Word4 parameter copied in the memcpy */ |
6124 | /* Word5 [rctl, type, df_ctl, la] copied in memcpy */ | |
6125 | /* word6 context tag copied in memcpy */ | |
6126 | if (iocbq->iocb.ulpCt_h || iocbq->iocb.ulpCt_l) { | |
6127 | ct = ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l); | |
6128 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
6129 | "2015 Invalid CT %x command 0x%x\n", | |
6130 | ct, iocbq->iocb.ulpCommand); | |
6131 | return IOCB_ERROR; | |
6132 | } | |
6133 | bf_set(lpfc_wqe_gen_ct, &wqe->generic, 0); | |
6134 | bf_set(wqe_tmo, &wqe->gen_req.wqe_com, | |
6135 | iocbq->iocb.ulpTimeout); | |
6136 | ||
6137 | bf_set(lpfc_wqe_gen_pu, &wqe->generic, iocbq->iocb.ulpPU); | |
6138 | command_type = OTHER_COMMAND; | |
6139 | break; | |
6140 | case CMD_XMIT_ELS_RSP64_CX: | |
6141 | /* words0-2 BDE memcpy */ | |
6142 | /* word3 iocb=iotag32 wqe=rsvd */ | |
6143 | wqe->words[3] = 0; | |
6144 | /* word4 iocb=did wge=rsvd. */ | |
6145 | wqe->words[4] = 0; | |
6146 | /* word5 iocb=rsvd wge=did */ | |
6147 | bf_set(wqe_els_did, &wqe->xmit_els_rsp.wqe_dest, | |
6148 | iocbq->iocb.un.elsreq64.remoteID); | |
6149 | ||
6150 | bf_set(lpfc_wqe_gen_ct, &wqe->generic, | |
6151 | ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l)); | |
6152 | ||
6153 | bf_set(lpfc_wqe_gen_pu, &wqe->generic, iocbq->iocb.ulpPU); | |
6154 | bf_set(wqe_rcvoxid, &wqe->generic, iocbq->iocb.ulpContext); | |
6155 | if (!iocbq->iocb.ulpCt_h && iocbq->iocb.ulpCt_l) | |
6156 | bf_set(lpfc_wqe_gen_context, &wqe->generic, | |
6157 | iocbq->vport->vpi + phba->vpi_base); | |
6158 | command_type = OTHER_COMMAND; | |
6159 | break; | |
6160 | case CMD_CLOSE_XRI_CN: | |
6161 | case CMD_ABORT_XRI_CN: | |
6162 | case CMD_ABORT_XRI_CX: | |
6163 | /* words 0-2 memcpy should be 0 rserved */ | |
6164 | /* port will send abts */ | |
6165 | if (iocbq->iocb.ulpCommand == CMD_CLOSE_XRI_CN) | |
6166 | /* | |
6167 | * The link is down so the fw does not need to send abts | |
6168 | * on the wire. | |
6169 | */ | |
6170 | bf_set(abort_cmd_ia, &wqe->abort_cmd, 1); | |
6171 | else | |
6172 | bf_set(abort_cmd_ia, &wqe->abort_cmd, 0); | |
6173 | bf_set(abort_cmd_criteria, &wqe->abort_cmd, T_XRI_TAG); | |
4f774513 JS |
6174 | wqe->words[5] = 0; |
6175 | bf_set(lpfc_wqe_gen_ct, &wqe->generic, | |
6176 | ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l)); | |
6177 | abort_tag = iocbq->iocb.un.acxri.abortIoTag; | |
4f774513 JS |
6178 | /* |
6179 | * The abort handler will send us CMD_ABORT_XRI_CN or | |
6180 | * CMD_CLOSE_XRI_CN and the fw only accepts CMD_ABORT_XRI_CX | |
6181 | */ | |
6182 | bf_set(lpfc_wqe_gen_command, &wqe->generic, CMD_ABORT_XRI_CX); | |
6183 | cmnd = CMD_ABORT_XRI_CX; | |
6184 | command_type = OTHER_COMMAND; | |
6185 | xritag = 0; | |
6186 | break; | |
6669f9bb JS |
6187 | case CMD_XMIT_BLS_RSP64_CX: |
6188 | /* As BLS ABTS-ACC WQE is very different from other WQEs, | |
6189 | * we re-construct this WQE here based on information in | |
6190 | * iocbq from scratch. | |
6191 | */ | |
6192 | memset(wqe, 0, sizeof(union lpfc_wqe)); | |
5ffc266e | 6193 | /* OX_ID is invariable to who sent ABTS to CT exchange */ |
6669f9bb | 6194 | bf_set(xmit_bls_rsp64_oxid, &wqe->xmit_bls_rsp, |
5ffc266e JS |
6195 | bf_get(lpfc_abts_oxid, &iocbq->iocb.un.bls_acc)); |
6196 | if (bf_get(lpfc_abts_orig, &iocbq->iocb.un.bls_acc) == | |
6197 | LPFC_ABTS_UNSOL_INT) { | |
6198 | /* ABTS sent by initiator to CT exchange, the | |
6199 | * RX_ID field will be filled with the newly | |
6200 | * allocated responder XRI. | |
6201 | */ | |
6202 | bf_set(xmit_bls_rsp64_rxid, &wqe->xmit_bls_rsp, | |
6203 | iocbq->sli4_xritag); | |
6204 | } else { | |
6205 | /* ABTS sent by responder to CT exchange, the | |
6206 | * RX_ID field will be filled with the responder | |
6207 | * RX_ID from ABTS. | |
6208 | */ | |
6209 | bf_set(xmit_bls_rsp64_rxid, &wqe->xmit_bls_rsp, | |
6210 | bf_get(lpfc_abts_rxid, &iocbq->iocb.un.bls_acc)); | |
6211 | } | |
6669f9bb JS |
6212 | bf_set(xmit_bls_rsp64_seqcnthi, &wqe->xmit_bls_rsp, 0xffff); |
6213 | bf_set(wqe_xmit_bls_pt, &wqe->xmit_bls_rsp.wqe_dest, 0x1); | |
6214 | bf_set(wqe_ctxt_tag, &wqe->xmit_bls_rsp.wqe_com, | |
6215 | iocbq->iocb.ulpContext); | |
6216 | /* Overwrite the pre-set comnd type with OTHER_COMMAND */ | |
6217 | command_type = OTHER_COMMAND; | |
6218 | break; | |
4f774513 JS |
6219 | case CMD_XRI_ABORTED_CX: |
6220 | case CMD_CREATE_XRI_CR: /* Do we expect to use this? */ | |
6221 | /* words0-2 are all 0's no bde */ | |
6222 | /* word3 and word4 are rsvrd */ | |
6223 | wqe->words[3] = 0; | |
6224 | wqe->words[4] = 0; | |
6225 | /* word5 iocb=rsvd wge=did */ | |
6226 | /* There is no remote port id in the IOCB? */ | |
6227 | /* Let this fall through and fail */ | |
6228 | case CMD_IOCB_FCP_IBIDIR64_CR: /* bidirectional xfer */ | |
6229 | case CMD_FCP_TSEND64_CX: /* Target mode send xfer-ready */ | |
6230 | case CMD_FCP_TRSP64_CX: /* Target mode rcv */ | |
6231 | case CMD_FCP_AUTO_TRSP_CX: /* Auto target rsp */ | |
6232 | default: | |
6233 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
6234 | "2014 Invalid command 0x%x\n", | |
6235 | iocbq->iocb.ulpCommand); | |
6236 | return IOCB_ERROR; | |
6237 | break; | |
6238 | ||
6239 | } | |
6240 | bf_set(lpfc_wqe_gen_xri, &wqe->generic, xritag); | |
6241 | bf_set(lpfc_wqe_gen_request_tag, &wqe->generic, iocbq->iotag); | |
6242 | wqe->generic.abort_tag = abort_tag; | |
6243 | bf_set(lpfc_wqe_gen_cmd_type, &wqe->generic, command_type); | |
6244 | bf_set(lpfc_wqe_gen_command, &wqe->generic, cmnd); | |
6245 | bf_set(lpfc_wqe_gen_class, &wqe->generic, iocbq->iocb.ulpClass); | |
6246 | bf_set(lpfc_wqe_gen_cq_id, &wqe->generic, LPFC_WQE_CQ_ID_DEFAULT); | |
6247 | ||
6248 | return 0; | |
6249 | } | |
6250 | ||
6251 | /** | |
6252 | * __lpfc_sli_issue_iocb_s4 - SLI4 device lockless ver of lpfc_sli_issue_iocb | |
6253 | * @phba: Pointer to HBA context object. | |
6254 | * @ring_number: SLI ring number to issue iocb on. | |
6255 | * @piocb: Pointer to command iocb. | |
6256 | * @flag: Flag indicating if this command can be put into txq. | |
6257 | * | |
6258 | * __lpfc_sli_issue_iocb_s4 is used by other functions in the driver to issue | |
6259 | * an iocb command to an HBA with SLI-4 interface spec. | |
6260 | * | |
6261 | * This function is called with hbalock held. The function will return success | |
6262 | * after it successfully submit the iocb to firmware or after adding to the | |
6263 | * txq. | |
6264 | **/ | |
6265 | static int | |
6266 | __lpfc_sli_issue_iocb_s4(struct lpfc_hba *phba, uint32_t ring_number, | |
6267 | struct lpfc_iocbq *piocb, uint32_t flag) | |
6268 | { | |
6269 | struct lpfc_sglq *sglq; | |
4f774513 JS |
6270 | union lpfc_wqe wqe; |
6271 | struct lpfc_sli_ring *pring = &phba->sli.ring[ring_number]; | |
4f774513 JS |
6272 | |
6273 | if (piocb->sli4_xritag == NO_XRI) { | |
6274 | if (piocb->iocb.ulpCommand == CMD_ABORT_XRI_CN || | |
6669f9bb | 6275 | piocb->iocb.ulpCommand == CMD_CLOSE_XRI_CN) |
4f774513 JS |
6276 | sglq = NULL; |
6277 | else { | |
2a9bf3d0 JS |
6278 | if (pring->txq_cnt) { |
6279 | if (!(flag & SLI_IOCB_RET_IOCB)) { | |
6280 | __lpfc_sli_ringtx_put(phba, | |
6281 | pring, piocb); | |
6282 | return IOCB_SUCCESS; | |
6283 | } else { | |
6284 | return IOCB_BUSY; | |
6285 | } | |
6286 | } else { | |
4f774513 | 6287 | sglq = __lpfc_sli_get_sglq(phba); |
2a9bf3d0 JS |
6288 | if (!sglq) { |
6289 | if (!(flag & SLI_IOCB_RET_IOCB)) { | |
6290 | __lpfc_sli_ringtx_put(phba, | |
6291 | pring, | |
6292 | piocb); | |
6293 | return IOCB_SUCCESS; | |
6294 | } else | |
6295 | return IOCB_BUSY; | |
6296 | } | |
6297 | } | |
4f774513 JS |
6298 | } |
6299 | } else if (piocb->iocb_flag & LPFC_IO_FCP) { | |
6300 | sglq = NULL; /* These IO's already have an XRI and | |
6301 | * a mapped sgl. | |
6302 | */ | |
6303 | } else { | |
6304 | /* This is a continuation of a commandi,(CX) so this | |
6305 | * sglq is on the active list | |
6306 | */ | |
6307 | sglq = __lpfc_get_active_sglq(phba, piocb->sli4_xritag); | |
6308 | if (!sglq) | |
6309 | return IOCB_ERROR; | |
6310 | } | |
6311 | ||
6312 | if (sglq) { | |
2a9bf3d0 JS |
6313 | piocb->sli4_xritag = sglq->sli4_xritag; |
6314 | ||
6315 | if (NO_XRI == lpfc_sli4_bpl2sgl(phba, piocb, sglq)) | |
4f774513 JS |
6316 | return IOCB_ERROR; |
6317 | } | |
6318 | ||
6319 | if (lpfc_sli4_iocb2wqe(phba, piocb, &wqe)) | |
6320 | return IOCB_ERROR; | |
6321 | ||
341af102 JS |
6322 | if ((piocb->iocb_flag & LPFC_IO_FCP) || |
6323 | (piocb->iocb_flag & LPFC_USE_FCPWQIDX)) { | |
5ffc266e JS |
6324 | /* |
6325 | * For FCP command IOCB, get a new WQ index to distribute | |
6326 | * WQE across the WQsr. On the other hand, for abort IOCB, | |
6327 | * it carries the same WQ index to the original command | |
6328 | * IOCB. | |
6329 | */ | |
341af102 | 6330 | if (piocb->iocb_flag & LPFC_IO_FCP) |
5ffc266e JS |
6331 | piocb->fcp_wqidx = lpfc_sli4_scmd_to_wqidx_distr(phba); |
6332 | if (lpfc_sli4_wq_put(phba->sli4_hba.fcp_wq[piocb->fcp_wqidx], | |
6333 | &wqe)) | |
4f774513 JS |
6334 | return IOCB_ERROR; |
6335 | } else { | |
6336 | if (lpfc_sli4_wq_put(phba->sli4_hba.els_wq, &wqe)) | |
6337 | return IOCB_ERROR; | |
6338 | } | |
6339 | lpfc_sli_ringtxcmpl_put(phba, pring, piocb); | |
6340 | ||
6341 | return 0; | |
6342 | } | |
6343 | ||
6344 | /** | |
6345 | * __lpfc_sli_issue_iocb - Wrapper func of lockless version for issuing iocb | |
6346 | * | |
6347 | * This routine wraps the actual lockless version for issusing IOCB function | |
6348 | * pointer from the lpfc_hba struct. | |
6349 | * | |
6350 | * Return codes: | |
6351 | * IOCB_ERROR - Error | |
6352 | * IOCB_SUCCESS - Success | |
6353 | * IOCB_BUSY - Busy | |
6354 | **/ | |
2a9bf3d0 | 6355 | int |
4f774513 JS |
6356 | __lpfc_sli_issue_iocb(struct lpfc_hba *phba, uint32_t ring_number, |
6357 | struct lpfc_iocbq *piocb, uint32_t flag) | |
6358 | { | |
6359 | return phba->__lpfc_sli_issue_iocb(phba, ring_number, piocb, flag); | |
6360 | } | |
6361 | ||
6362 | /** | |
6363 | * lpfc_sli_api_table_setup - Set up sli api fucntion jump table | |
6364 | * @phba: The hba struct for which this call is being executed. | |
6365 | * @dev_grp: The HBA PCI-Device group number. | |
6366 | * | |
6367 | * This routine sets up the SLI interface API function jump table in @phba | |
6368 | * struct. | |
6369 | * Returns: 0 - success, -ENODEV - failure. | |
6370 | **/ | |
6371 | int | |
6372 | lpfc_sli_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) | |
6373 | { | |
6374 | ||
6375 | switch (dev_grp) { | |
6376 | case LPFC_PCI_DEV_LP: | |
6377 | phba->__lpfc_sli_issue_iocb = __lpfc_sli_issue_iocb_s3; | |
6378 | phba->__lpfc_sli_release_iocbq = __lpfc_sli_release_iocbq_s3; | |
6379 | break; | |
6380 | case LPFC_PCI_DEV_OC: | |
6381 | phba->__lpfc_sli_issue_iocb = __lpfc_sli_issue_iocb_s4; | |
6382 | phba->__lpfc_sli_release_iocbq = __lpfc_sli_release_iocbq_s4; | |
6383 | break; | |
6384 | default: | |
6385 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
6386 | "1419 Invalid HBA PCI-device group: 0x%x\n", | |
6387 | dev_grp); | |
6388 | return -ENODEV; | |
6389 | break; | |
6390 | } | |
6391 | phba->lpfc_get_iocb_from_iocbq = lpfc_get_iocb_from_iocbq; | |
6392 | return 0; | |
6393 | } | |
6394 | ||
6395 | /** | |
6396 | * lpfc_sli_issue_iocb - Wrapper function for __lpfc_sli_issue_iocb | |
6397 | * @phba: Pointer to HBA context object. | |
6398 | * @pring: Pointer to driver SLI ring object. | |
6399 | * @piocb: Pointer to command iocb. | |
6400 | * @flag: Flag indicating if this command can be put into txq. | |
6401 | * | |
6402 | * lpfc_sli_issue_iocb is a wrapper around __lpfc_sli_issue_iocb | |
6403 | * function. This function gets the hbalock and calls | |
6404 | * __lpfc_sli_issue_iocb function and will return the error returned | |
6405 | * by __lpfc_sli_issue_iocb function. This wrapper is used by | |
6406 | * functions which do not hold hbalock. | |
6407 | **/ | |
6408 | int | |
6409 | lpfc_sli_issue_iocb(struct lpfc_hba *phba, uint32_t ring_number, | |
6410 | struct lpfc_iocbq *piocb, uint32_t flag) | |
6411 | { | |
6412 | unsigned long iflags; | |
6413 | int rc; | |
6414 | ||
6415 | spin_lock_irqsave(&phba->hbalock, iflags); | |
6416 | rc = __lpfc_sli_issue_iocb(phba, ring_number, piocb, flag); | |
6417 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
6418 | ||
6419 | return rc; | |
6420 | } | |
6421 | ||
6422 | /** | |
6423 | * lpfc_extra_ring_setup - Extra ring setup function | |
6424 | * @phba: Pointer to HBA context object. | |
6425 | * | |
6426 | * This function is called while driver attaches with the | |
6427 | * HBA to setup the extra ring. The extra ring is used | |
6428 | * only when driver needs to support target mode functionality | |
6429 | * or IP over FC functionalities. | |
6430 | * | |
6431 | * This function is called with no lock held. | |
6432 | **/ | |
6433 | static int | |
6434 | lpfc_extra_ring_setup( struct lpfc_hba *phba) | |
6435 | { | |
6436 | struct lpfc_sli *psli; | |
6437 | struct lpfc_sli_ring *pring; | |
6438 | ||
6439 | psli = &phba->sli; | |
6440 | ||
6441 | /* Adjust cmd/rsp ring iocb entries more evenly */ | |
6442 | ||
6443 | /* Take some away from the FCP ring */ | |
6444 | pring = &psli->ring[psli->fcp_ring]; | |
6445 | pring->numCiocb -= SLI2_IOCB_CMD_R1XTRA_ENTRIES; | |
6446 | pring->numRiocb -= SLI2_IOCB_RSP_R1XTRA_ENTRIES; | |
cf5bf97e JW |
6447 | pring->numCiocb -= SLI2_IOCB_CMD_R3XTRA_ENTRIES; |
6448 | pring->numRiocb -= SLI2_IOCB_RSP_R3XTRA_ENTRIES; | |
6449 | ||
a4bc3379 JS |
6450 | /* and give them to the extra ring */ |
6451 | pring = &psli->ring[psli->extra_ring]; | |
6452 | ||
cf5bf97e JW |
6453 | pring->numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES; |
6454 | pring->numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES; | |
6455 | pring->numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES; | |
6456 | pring->numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES; | |
6457 | ||
6458 | /* Setup default profile for this ring */ | |
6459 | pring->iotag_max = 4096; | |
6460 | pring->num_mask = 1; | |
6461 | pring->prt[0].profile = 0; /* Mask 0 */ | |
a4bc3379 JS |
6462 | pring->prt[0].rctl = phba->cfg_multi_ring_rctl; |
6463 | pring->prt[0].type = phba->cfg_multi_ring_type; | |
cf5bf97e JW |
6464 | pring->prt[0].lpfc_sli_rcv_unsol_event = NULL; |
6465 | return 0; | |
6466 | } | |
6467 | ||
e59058c4 | 6468 | /** |
3621a710 | 6469 | * lpfc_sli_async_event_handler - ASYNC iocb handler function |
e59058c4 JS |
6470 | * @phba: Pointer to HBA context object. |
6471 | * @pring: Pointer to driver SLI ring object. | |
6472 | * @iocbq: Pointer to iocb object. | |
6473 | * | |
6474 | * This function is called by the slow ring event handler | |
6475 | * function when there is an ASYNC event iocb in the ring. | |
6476 | * This function is called with no lock held. | |
6477 | * Currently this function handles only temperature related | |
6478 | * ASYNC events. The function decodes the temperature sensor | |
6479 | * event message and posts events for the management applications. | |
6480 | **/ | |
98c9ea5c | 6481 | static void |
57127f15 JS |
6482 | lpfc_sli_async_event_handler(struct lpfc_hba * phba, |
6483 | struct lpfc_sli_ring * pring, struct lpfc_iocbq * iocbq) | |
6484 | { | |
6485 | IOCB_t *icmd; | |
6486 | uint16_t evt_code; | |
6487 | uint16_t temp; | |
6488 | struct temp_event temp_event_data; | |
6489 | struct Scsi_Host *shost; | |
a257bf90 | 6490 | uint32_t *iocb_w; |
57127f15 JS |
6491 | |
6492 | icmd = &iocbq->iocb; | |
6493 | evt_code = icmd->un.asyncstat.evt_code; | |
6494 | temp = icmd->ulpContext; | |
6495 | ||
6496 | if ((evt_code != ASYNC_TEMP_WARN) && | |
6497 | (evt_code != ASYNC_TEMP_SAFE)) { | |
a257bf90 | 6498 | iocb_w = (uint32_t *) icmd; |
57127f15 JS |
6499 | lpfc_printf_log(phba, |
6500 | KERN_ERR, | |
6501 | LOG_SLI, | |
76bb24ef | 6502 | "0346 Ring %d handler: unexpected ASYNC_STATUS" |
e4e74273 | 6503 | " evt_code 0x%x\n" |
a257bf90 JS |
6504 | "W0 0x%08x W1 0x%08x W2 0x%08x W3 0x%08x\n" |
6505 | "W4 0x%08x W5 0x%08x W6 0x%08x W7 0x%08x\n" | |
6506 | "W8 0x%08x W9 0x%08x W10 0x%08x W11 0x%08x\n" | |
6507 | "W12 0x%08x W13 0x%08x W14 0x%08x W15 0x%08x\n", | |
57127f15 | 6508 | pring->ringno, |
a257bf90 JS |
6509 | icmd->un.asyncstat.evt_code, |
6510 | iocb_w[0], iocb_w[1], iocb_w[2], iocb_w[3], | |
6511 | iocb_w[4], iocb_w[5], iocb_w[6], iocb_w[7], | |
6512 | iocb_w[8], iocb_w[9], iocb_w[10], iocb_w[11], | |
6513 | iocb_w[12], iocb_w[13], iocb_w[14], iocb_w[15]); | |
6514 | ||
57127f15 JS |
6515 | return; |
6516 | } | |
6517 | temp_event_data.data = (uint32_t)temp; | |
6518 | temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT; | |
6519 | if (evt_code == ASYNC_TEMP_WARN) { | |
6520 | temp_event_data.event_code = LPFC_THRESHOLD_TEMP; | |
6521 | lpfc_printf_log(phba, | |
09372820 | 6522 | KERN_ERR, |
57127f15 | 6523 | LOG_TEMP, |
76bb24ef | 6524 | "0347 Adapter is very hot, please take " |
57127f15 JS |
6525 | "corrective action. temperature : %d Celsius\n", |
6526 | temp); | |
6527 | } | |
6528 | if (evt_code == ASYNC_TEMP_SAFE) { | |
6529 | temp_event_data.event_code = LPFC_NORMAL_TEMP; | |
6530 | lpfc_printf_log(phba, | |
09372820 | 6531 | KERN_ERR, |
57127f15 JS |
6532 | LOG_TEMP, |
6533 | "0340 Adapter temperature is OK now. " | |
6534 | "temperature : %d Celsius\n", | |
6535 | temp); | |
6536 | } | |
6537 | ||
6538 | /* Send temperature change event to applications */ | |
6539 | shost = lpfc_shost_from_vport(phba->pport); | |
6540 | fc_host_post_vendor_event(shost, fc_get_event_number(), | |
6541 | sizeof(temp_event_data), (char *) &temp_event_data, | |
ddcc50f0 | 6542 | LPFC_NL_VENDOR_ID); |
57127f15 JS |
6543 | |
6544 | } | |
6545 | ||
6546 | ||
e59058c4 | 6547 | /** |
3621a710 | 6548 | * lpfc_sli_setup - SLI ring setup function |
e59058c4 JS |
6549 | * @phba: Pointer to HBA context object. |
6550 | * | |
6551 | * lpfc_sli_setup sets up rings of the SLI interface with | |
6552 | * number of iocbs per ring and iotags. This function is | |
6553 | * called while driver attach to the HBA and before the | |
6554 | * interrupts are enabled. So there is no need for locking. | |
6555 | * | |
6556 | * This function always returns 0. | |
6557 | **/ | |
dea3101e | 6558 | int |
6559 | lpfc_sli_setup(struct lpfc_hba *phba) | |
6560 | { | |
ed957684 | 6561 | int i, totiocbsize = 0; |
dea3101e | 6562 | struct lpfc_sli *psli = &phba->sli; |
6563 | struct lpfc_sli_ring *pring; | |
6564 | ||
6565 | psli->num_rings = MAX_CONFIGURED_RINGS; | |
6566 | psli->sli_flag = 0; | |
6567 | psli->fcp_ring = LPFC_FCP_RING; | |
6568 | psli->next_ring = LPFC_FCP_NEXT_RING; | |
a4bc3379 | 6569 | psli->extra_ring = LPFC_EXTRA_RING; |
dea3101e | 6570 | |
604a3e30 JB |
6571 | psli->iocbq_lookup = NULL; |
6572 | psli->iocbq_lookup_len = 0; | |
6573 | psli->last_iotag = 0; | |
6574 | ||
dea3101e | 6575 | for (i = 0; i < psli->num_rings; i++) { |
6576 | pring = &psli->ring[i]; | |
6577 | switch (i) { | |
6578 | case LPFC_FCP_RING: /* ring 0 - FCP */ | |
6579 | /* numCiocb and numRiocb are used in config_port */ | |
6580 | pring->numCiocb = SLI2_IOCB_CMD_R0_ENTRIES; | |
6581 | pring->numRiocb = SLI2_IOCB_RSP_R0_ENTRIES; | |
6582 | pring->numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES; | |
6583 | pring->numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES; | |
6584 | pring->numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES; | |
6585 | pring->numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES; | |
ed957684 | 6586 | pring->sizeCiocb = (phba->sli_rev == 3) ? |
92d7f7b0 JS |
6587 | SLI3_IOCB_CMD_SIZE : |
6588 | SLI2_IOCB_CMD_SIZE; | |
ed957684 | 6589 | pring->sizeRiocb = (phba->sli_rev == 3) ? |
92d7f7b0 JS |
6590 | SLI3_IOCB_RSP_SIZE : |
6591 | SLI2_IOCB_RSP_SIZE; | |
dea3101e | 6592 | pring->iotag_ctr = 0; |
6593 | pring->iotag_max = | |
92d7f7b0 | 6594 | (phba->cfg_hba_queue_depth * 2); |
dea3101e | 6595 | pring->fast_iotag = pring->iotag_max; |
6596 | pring->num_mask = 0; | |
6597 | break; | |
a4bc3379 | 6598 | case LPFC_EXTRA_RING: /* ring 1 - EXTRA */ |
dea3101e | 6599 | /* numCiocb and numRiocb are used in config_port */ |
6600 | pring->numCiocb = SLI2_IOCB_CMD_R1_ENTRIES; | |
6601 | pring->numRiocb = SLI2_IOCB_RSP_R1_ENTRIES; | |
ed957684 | 6602 | pring->sizeCiocb = (phba->sli_rev == 3) ? |
92d7f7b0 JS |
6603 | SLI3_IOCB_CMD_SIZE : |
6604 | SLI2_IOCB_CMD_SIZE; | |
ed957684 | 6605 | pring->sizeRiocb = (phba->sli_rev == 3) ? |
92d7f7b0 JS |
6606 | SLI3_IOCB_RSP_SIZE : |
6607 | SLI2_IOCB_RSP_SIZE; | |
2e0fef85 | 6608 | pring->iotag_max = phba->cfg_hba_queue_depth; |
dea3101e | 6609 | pring->num_mask = 0; |
6610 | break; | |
6611 | case LPFC_ELS_RING: /* ring 2 - ELS / CT */ | |
6612 | /* numCiocb and numRiocb are used in config_port */ | |
6613 | pring->numCiocb = SLI2_IOCB_CMD_R2_ENTRIES; | |
6614 | pring->numRiocb = SLI2_IOCB_RSP_R2_ENTRIES; | |
ed957684 | 6615 | pring->sizeCiocb = (phba->sli_rev == 3) ? |
92d7f7b0 JS |
6616 | SLI3_IOCB_CMD_SIZE : |
6617 | SLI2_IOCB_CMD_SIZE; | |
ed957684 | 6618 | pring->sizeRiocb = (phba->sli_rev == 3) ? |
92d7f7b0 JS |
6619 | SLI3_IOCB_RSP_SIZE : |
6620 | SLI2_IOCB_RSP_SIZE; | |
dea3101e | 6621 | pring->fast_iotag = 0; |
6622 | pring->iotag_ctr = 0; | |
6623 | pring->iotag_max = 4096; | |
57127f15 JS |
6624 | pring->lpfc_sli_rcv_async_status = |
6625 | lpfc_sli_async_event_handler; | |
6669f9bb | 6626 | pring->num_mask = LPFC_MAX_RING_MASK; |
dea3101e | 6627 | pring->prt[0].profile = 0; /* Mask 0 */ |
6a9c52cf JS |
6628 | pring->prt[0].rctl = FC_RCTL_ELS_REQ; |
6629 | pring->prt[0].type = FC_TYPE_ELS; | |
dea3101e | 6630 | pring->prt[0].lpfc_sli_rcv_unsol_event = |
92d7f7b0 | 6631 | lpfc_els_unsol_event; |
dea3101e | 6632 | pring->prt[1].profile = 0; /* Mask 1 */ |
6a9c52cf JS |
6633 | pring->prt[1].rctl = FC_RCTL_ELS_REP; |
6634 | pring->prt[1].type = FC_TYPE_ELS; | |
dea3101e | 6635 | pring->prt[1].lpfc_sli_rcv_unsol_event = |
92d7f7b0 | 6636 | lpfc_els_unsol_event; |
dea3101e | 6637 | pring->prt[2].profile = 0; /* Mask 2 */ |
6638 | /* NameServer Inquiry */ | |
6a9c52cf | 6639 | pring->prt[2].rctl = FC_RCTL_DD_UNSOL_CTL; |
dea3101e | 6640 | /* NameServer */ |
6a9c52cf | 6641 | pring->prt[2].type = FC_TYPE_CT; |
dea3101e | 6642 | pring->prt[2].lpfc_sli_rcv_unsol_event = |
92d7f7b0 | 6643 | lpfc_ct_unsol_event; |
dea3101e | 6644 | pring->prt[3].profile = 0; /* Mask 3 */ |
6645 | /* NameServer response */ | |
6a9c52cf | 6646 | pring->prt[3].rctl = FC_RCTL_DD_SOL_CTL; |
dea3101e | 6647 | /* NameServer */ |
6a9c52cf | 6648 | pring->prt[3].type = FC_TYPE_CT; |
dea3101e | 6649 | pring->prt[3].lpfc_sli_rcv_unsol_event = |
92d7f7b0 | 6650 | lpfc_ct_unsol_event; |
6669f9bb JS |
6651 | /* abort unsolicited sequence */ |
6652 | pring->prt[4].profile = 0; /* Mask 4 */ | |
6653 | pring->prt[4].rctl = FC_RCTL_BA_ABTS; | |
6654 | pring->prt[4].type = FC_TYPE_BLS; | |
6655 | pring->prt[4].lpfc_sli_rcv_unsol_event = | |
6656 | lpfc_sli4_ct_abort_unsol_event; | |
dea3101e | 6657 | break; |
6658 | } | |
ed957684 | 6659 | totiocbsize += (pring->numCiocb * pring->sizeCiocb) + |
92d7f7b0 | 6660 | (pring->numRiocb * pring->sizeRiocb); |
dea3101e | 6661 | } |
ed957684 | 6662 | if (totiocbsize > MAX_SLIM_IOCB_SIZE) { |
dea3101e | 6663 | /* Too many cmd / rsp ring entries in SLI2 SLIM */ |
e8b62011 JS |
6664 | printk(KERN_ERR "%d:0462 Too many cmd / rsp ring entries in " |
6665 | "SLI2 SLIM Data: x%x x%lx\n", | |
6666 | phba->brd_no, totiocbsize, | |
6667 | (unsigned long) MAX_SLIM_IOCB_SIZE); | |
dea3101e | 6668 | } |
cf5bf97e JW |
6669 | if (phba->cfg_multi_ring_support == 2) |
6670 | lpfc_extra_ring_setup(phba); | |
dea3101e | 6671 | |
6672 | return 0; | |
6673 | } | |
6674 | ||
e59058c4 | 6675 | /** |
3621a710 | 6676 | * lpfc_sli_queue_setup - Queue initialization function |
e59058c4 JS |
6677 | * @phba: Pointer to HBA context object. |
6678 | * | |
6679 | * lpfc_sli_queue_setup sets up mailbox queues and iocb queues for each | |
6680 | * ring. This function also initializes ring indices of each ring. | |
6681 | * This function is called during the initialization of the SLI | |
6682 | * interface of an HBA. | |
6683 | * This function is called with no lock held and always returns | |
6684 | * 1. | |
6685 | **/ | |
dea3101e | 6686 | int |
2e0fef85 | 6687 | lpfc_sli_queue_setup(struct lpfc_hba *phba) |
dea3101e | 6688 | { |
6689 | struct lpfc_sli *psli; | |
6690 | struct lpfc_sli_ring *pring; | |
604a3e30 | 6691 | int i; |
dea3101e | 6692 | |
6693 | psli = &phba->sli; | |
2e0fef85 | 6694 | spin_lock_irq(&phba->hbalock); |
dea3101e | 6695 | INIT_LIST_HEAD(&psli->mboxq); |
92d7f7b0 | 6696 | INIT_LIST_HEAD(&psli->mboxq_cmpl); |
dea3101e | 6697 | /* Initialize list headers for txq and txcmplq as double linked lists */ |
6698 | for (i = 0; i < psli->num_rings; i++) { | |
6699 | pring = &psli->ring[i]; | |
6700 | pring->ringno = i; | |
6701 | pring->next_cmdidx = 0; | |
6702 | pring->local_getidx = 0; | |
6703 | pring->cmdidx = 0; | |
6704 | INIT_LIST_HEAD(&pring->txq); | |
6705 | INIT_LIST_HEAD(&pring->txcmplq); | |
6706 | INIT_LIST_HEAD(&pring->iocb_continueq); | |
9c2face6 | 6707 | INIT_LIST_HEAD(&pring->iocb_continue_saveq); |
dea3101e | 6708 | INIT_LIST_HEAD(&pring->postbufq); |
dea3101e | 6709 | } |
2e0fef85 JS |
6710 | spin_unlock_irq(&phba->hbalock); |
6711 | return 1; | |
dea3101e | 6712 | } |
6713 | ||
04c68496 JS |
6714 | /** |
6715 | * lpfc_sli_mbox_sys_flush - Flush mailbox command sub-system | |
6716 | * @phba: Pointer to HBA context object. | |
6717 | * | |
6718 | * This routine flushes the mailbox command subsystem. It will unconditionally | |
6719 | * flush all the mailbox commands in the three possible stages in the mailbox | |
6720 | * command sub-system: pending mailbox command queue; the outstanding mailbox | |
6721 | * command; and completed mailbox command queue. It is caller's responsibility | |
6722 | * to make sure that the driver is in the proper state to flush the mailbox | |
6723 | * command sub-system. Namely, the posting of mailbox commands into the | |
6724 | * pending mailbox command queue from the various clients must be stopped; | |
6725 | * either the HBA is in a state that it will never works on the outstanding | |
6726 | * mailbox command (such as in EEH or ERATT conditions) or the outstanding | |
6727 | * mailbox command has been completed. | |
6728 | **/ | |
6729 | static void | |
6730 | lpfc_sli_mbox_sys_flush(struct lpfc_hba *phba) | |
6731 | { | |
6732 | LIST_HEAD(completions); | |
6733 | struct lpfc_sli *psli = &phba->sli; | |
6734 | LPFC_MBOXQ_t *pmb; | |
6735 | unsigned long iflag; | |
6736 | ||
6737 | /* Flush all the mailbox commands in the mbox system */ | |
6738 | spin_lock_irqsave(&phba->hbalock, iflag); | |
6739 | /* The pending mailbox command queue */ | |
6740 | list_splice_init(&phba->sli.mboxq, &completions); | |
6741 | /* The outstanding active mailbox command */ | |
6742 | if (psli->mbox_active) { | |
6743 | list_add_tail(&psli->mbox_active->list, &completions); | |
6744 | psli->mbox_active = NULL; | |
6745 | psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; | |
6746 | } | |
6747 | /* The completed mailbox command queue */ | |
6748 | list_splice_init(&phba->sli.mboxq_cmpl, &completions); | |
6749 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
6750 | ||
6751 | /* Return all flushed mailbox commands with MBX_NOT_FINISHED status */ | |
6752 | while (!list_empty(&completions)) { | |
6753 | list_remove_head(&completions, pmb, LPFC_MBOXQ_t, list); | |
6754 | pmb->u.mb.mbxStatus = MBX_NOT_FINISHED; | |
6755 | if (pmb->mbox_cmpl) | |
6756 | pmb->mbox_cmpl(phba, pmb); | |
6757 | } | |
6758 | } | |
6759 | ||
e59058c4 | 6760 | /** |
3621a710 | 6761 | * lpfc_sli_host_down - Vport cleanup function |
e59058c4 JS |
6762 | * @vport: Pointer to virtual port object. |
6763 | * | |
6764 | * lpfc_sli_host_down is called to clean up the resources | |
6765 | * associated with a vport before destroying virtual | |
6766 | * port data structures. | |
6767 | * This function does following operations: | |
6768 | * - Free discovery resources associated with this virtual | |
6769 | * port. | |
6770 | * - Free iocbs associated with this virtual port in | |
6771 | * the txq. | |
6772 | * - Send abort for all iocb commands associated with this | |
6773 | * vport in txcmplq. | |
6774 | * | |
6775 | * This function is called with no lock held and always returns 1. | |
6776 | **/ | |
92d7f7b0 JS |
6777 | int |
6778 | lpfc_sli_host_down(struct lpfc_vport *vport) | |
6779 | { | |
858c9f6c | 6780 | LIST_HEAD(completions); |
92d7f7b0 JS |
6781 | struct lpfc_hba *phba = vport->phba; |
6782 | struct lpfc_sli *psli = &phba->sli; | |
6783 | struct lpfc_sli_ring *pring; | |
6784 | struct lpfc_iocbq *iocb, *next_iocb; | |
92d7f7b0 JS |
6785 | int i; |
6786 | unsigned long flags = 0; | |
6787 | uint16_t prev_pring_flag; | |
6788 | ||
6789 | lpfc_cleanup_discovery_resources(vport); | |
6790 | ||
6791 | spin_lock_irqsave(&phba->hbalock, flags); | |
92d7f7b0 JS |
6792 | for (i = 0; i < psli->num_rings; i++) { |
6793 | pring = &psli->ring[i]; | |
6794 | prev_pring_flag = pring->flag; | |
5e9d9b82 JS |
6795 | /* Only slow rings */ |
6796 | if (pring->ringno == LPFC_ELS_RING) { | |
858c9f6c | 6797 | pring->flag |= LPFC_DEFERRED_RING_EVENT; |
5e9d9b82 JS |
6798 | /* Set the lpfc data pending flag */ |
6799 | set_bit(LPFC_DATA_READY, &phba->data_flags); | |
6800 | } | |
92d7f7b0 JS |
6801 | /* |
6802 | * Error everything on the txq since these iocbs have not been | |
6803 | * given to the FW yet. | |
6804 | */ | |
92d7f7b0 JS |
6805 | list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) { |
6806 | if (iocb->vport != vport) | |
6807 | continue; | |
858c9f6c | 6808 | list_move_tail(&iocb->list, &completions); |
92d7f7b0 | 6809 | pring->txq_cnt--; |
92d7f7b0 JS |
6810 | } |
6811 | ||
6812 | /* Next issue ABTS for everything on the txcmplq */ | |
6813 | list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, | |
6814 | list) { | |
6815 | if (iocb->vport != vport) | |
6816 | continue; | |
6817 | lpfc_sli_issue_abort_iotag(phba, pring, iocb); | |
6818 | } | |
6819 | ||
6820 | pring->flag = prev_pring_flag; | |
6821 | } | |
6822 | ||
6823 | spin_unlock_irqrestore(&phba->hbalock, flags); | |
6824 | ||
a257bf90 JS |
6825 | /* Cancel all the IOCBs from the completions list */ |
6826 | lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, | |
6827 | IOERR_SLI_DOWN); | |
92d7f7b0 JS |
6828 | return 1; |
6829 | } | |
6830 | ||
e59058c4 | 6831 | /** |
3621a710 | 6832 | * lpfc_sli_hba_down - Resource cleanup function for the HBA |
e59058c4 JS |
6833 | * @phba: Pointer to HBA context object. |
6834 | * | |
6835 | * This function cleans up all iocb, buffers, mailbox commands | |
6836 | * while shutting down the HBA. This function is called with no | |
6837 | * lock held and always returns 1. | |
6838 | * This function does the following to cleanup driver resources: | |
6839 | * - Free discovery resources for each virtual port | |
6840 | * - Cleanup any pending fabric iocbs | |
6841 | * - Iterate through the iocb txq and free each entry | |
6842 | * in the list. | |
6843 | * - Free up any buffer posted to the HBA | |
6844 | * - Free mailbox commands in the mailbox queue. | |
6845 | **/ | |
dea3101e | 6846 | int |
2e0fef85 | 6847 | lpfc_sli_hba_down(struct lpfc_hba *phba) |
dea3101e | 6848 | { |
2534ba75 | 6849 | LIST_HEAD(completions); |
2e0fef85 | 6850 | struct lpfc_sli *psli = &phba->sli; |
dea3101e | 6851 | struct lpfc_sli_ring *pring; |
0ff10d46 | 6852 | struct lpfc_dmabuf *buf_ptr; |
dea3101e | 6853 | unsigned long flags = 0; |
04c68496 JS |
6854 | int i; |
6855 | ||
6856 | /* Shutdown the mailbox command sub-system */ | |
6857 | lpfc_sli_mbox_sys_shutdown(phba); | |
dea3101e | 6858 | |
dea3101e | 6859 | lpfc_hba_down_prep(phba); |
6860 | ||
92d7f7b0 JS |
6861 | lpfc_fabric_abort_hba(phba); |
6862 | ||
2e0fef85 | 6863 | spin_lock_irqsave(&phba->hbalock, flags); |
dea3101e | 6864 | for (i = 0; i < psli->num_rings; i++) { |
6865 | pring = &psli->ring[i]; | |
5e9d9b82 JS |
6866 | /* Only slow rings */ |
6867 | if (pring->ringno == LPFC_ELS_RING) { | |
858c9f6c | 6868 | pring->flag |= LPFC_DEFERRED_RING_EVENT; |
5e9d9b82 JS |
6869 | /* Set the lpfc data pending flag */ |
6870 | set_bit(LPFC_DATA_READY, &phba->data_flags); | |
6871 | } | |
dea3101e | 6872 | |
6873 | /* | |
6874 | * Error everything on the txq since these iocbs have not been | |
6875 | * given to the FW yet. | |
6876 | */ | |
2534ba75 | 6877 | list_splice_init(&pring->txq, &completions); |
dea3101e | 6878 | pring->txq_cnt = 0; |
6879 | ||
2534ba75 | 6880 | } |
2e0fef85 | 6881 | spin_unlock_irqrestore(&phba->hbalock, flags); |
dea3101e | 6882 | |
a257bf90 JS |
6883 | /* Cancel all the IOCBs from the completions list */ |
6884 | lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, | |
6885 | IOERR_SLI_DOWN); | |
dea3101e | 6886 | |
0ff10d46 JS |
6887 | spin_lock_irqsave(&phba->hbalock, flags); |
6888 | list_splice_init(&phba->elsbuf, &completions); | |
6889 | phba->elsbuf_cnt = 0; | |
6890 | phba->elsbuf_prev_cnt = 0; | |
6891 | spin_unlock_irqrestore(&phba->hbalock, flags); | |
6892 | ||
6893 | while (!list_empty(&completions)) { | |
6894 | list_remove_head(&completions, buf_ptr, | |
6895 | struct lpfc_dmabuf, list); | |
6896 | lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); | |
6897 | kfree(buf_ptr); | |
6898 | } | |
6899 | ||
dea3101e | 6900 | /* Return any active mbox cmds */ |
6901 | del_timer_sync(&psli->mbox_tmo); | |
2e0fef85 | 6902 | |
da0436e9 | 6903 | spin_lock_irqsave(&phba->pport->work_port_lock, flags); |
2e0fef85 | 6904 | phba->pport->work_port_events &= ~WORKER_MBOX_TMO; |
da0436e9 | 6905 | spin_unlock_irqrestore(&phba->pport->work_port_lock, flags); |
2e0fef85 | 6906 | |
da0436e9 JS |
6907 | return 1; |
6908 | } | |
6909 | ||
6910 | /** | |
6911 | * lpfc_sli4_hba_down - PCI function resource cleanup for the SLI4 HBA | |
6912 | * @phba: Pointer to HBA context object. | |
6913 | * | |
6914 | * This function cleans up all queues, iocb, buffers, mailbox commands while | |
6915 | * shutting down the SLI4 HBA FCoE function. This function is called with no | |
6916 | * lock held and always returns 1. | |
6917 | * | |
6918 | * This function does the following to cleanup driver FCoE function resources: | |
6919 | * - Free discovery resources for each virtual port | |
6920 | * - Cleanup any pending fabric iocbs | |
6921 | * - Iterate through the iocb txq and free each entry in the list. | |
6922 | * - Free up any buffer posted to the HBA. | |
6923 | * - Clean up all the queue entries: WQ, RQ, MQ, EQ, CQ, etc. | |
6924 | * - Free mailbox commands in the mailbox queue. | |
6925 | **/ | |
6926 | int | |
6927 | lpfc_sli4_hba_down(struct lpfc_hba *phba) | |
6928 | { | |
6929 | /* Stop the SLI4 device port */ | |
6930 | lpfc_stop_port(phba); | |
6931 | ||
6932 | /* Tear down the queues in the HBA */ | |
6933 | lpfc_sli4_queue_unset(phba); | |
6934 | ||
6935 | /* unregister default FCFI from the HBA */ | |
6936 | lpfc_sli4_fcfi_unreg(phba, phba->fcf.fcfi); | |
92d7f7b0 | 6937 | |
dea3101e | 6938 | return 1; |
6939 | } | |
6940 | ||
e59058c4 | 6941 | /** |
3621a710 | 6942 | * lpfc_sli_pcimem_bcopy - SLI memory copy function |
e59058c4 JS |
6943 | * @srcp: Source memory pointer. |
6944 | * @destp: Destination memory pointer. | |
6945 | * @cnt: Number of words required to be copied. | |
6946 | * | |
6947 | * This function is used for copying data between driver memory | |
6948 | * and the SLI memory. This function also changes the endianness | |
6949 | * of each word if native endianness is different from SLI | |
6950 | * endianness. This function can be called with or without | |
6951 | * lock. | |
6952 | **/ | |
dea3101e | 6953 | void |
6954 | lpfc_sli_pcimem_bcopy(void *srcp, void *destp, uint32_t cnt) | |
6955 | { | |
6956 | uint32_t *src = srcp; | |
6957 | uint32_t *dest = destp; | |
6958 | uint32_t ldata; | |
6959 | int i; | |
6960 | ||
6961 | for (i = 0; i < (int)cnt; i += sizeof (uint32_t)) { | |
6962 | ldata = *src; | |
6963 | ldata = le32_to_cpu(ldata); | |
6964 | *dest = ldata; | |
6965 | src++; | |
6966 | dest++; | |
6967 | } | |
6968 | } | |
6969 | ||
e59058c4 | 6970 | |
a0c87cbd JS |
6971 | /** |
6972 | * lpfc_sli_bemem_bcopy - SLI memory copy function | |
6973 | * @srcp: Source memory pointer. | |
6974 | * @destp: Destination memory pointer. | |
6975 | * @cnt: Number of words required to be copied. | |
6976 | * | |
6977 | * This function is used for copying data between a data structure | |
6978 | * with big endian representation to local endianness. | |
6979 | * This function can be called with or without lock. | |
6980 | **/ | |
6981 | void | |
6982 | lpfc_sli_bemem_bcopy(void *srcp, void *destp, uint32_t cnt) | |
6983 | { | |
6984 | uint32_t *src = srcp; | |
6985 | uint32_t *dest = destp; | |
6986 | uint32_t ldata; | |
6987 | int i; | |
6988 | ||
6989 | for (i = 0; i < (int)cnt; i += sizeof(uint32_t)) { | |
6990 | ldata = *src; | |
6991 | ldata = be32_to_cpu(ldata); | |
6992 | *dest = ldata; | |
6993 | src++; | |
6994 | dest++; | |
6995 | } | |
6996 | } | |
6997 | ||
e59058c4 | 6998 | /** |
3621a710 | 6999 | * lpfc_sli_ringpostbuf_put - Function to add a buffer to postbufq |
e59058c4 JS |
7000 | * @phba: Pointer to HBA context object. |
7001 | * @pring: Pointer to driver SLI ring object. | |
7002 | * @mp: Pointer to driver buffer object. | |
7003 | * | |
7004 | * This function is called with no lock held. | |
7005 | * It always return zero after adding the buffer to the postbufq | |
7006 | * buffer list. | |
7007 | **/ | |
dea3101e | 7008 | int |
2e0fef85 JS |
7009 | lpfc_sli_ringpostbuf_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, |
7010 | struct lpfc_dmabuf *mp) | |
dea3101e | 7011 | { |
7012 | /* Stick struct lpfc_dmabuf at end of postbufq so driver can look it up | |
7013 | later */ | |
2e0fef85 | 7014 | spin_lock_irq(&phba->hbalock); |
dea3101e | 7015 | list_add_tail(&mp->list, &pring->postbufq); |
dea3101e | 7016 | pring->postbufq_cnt++; |
2e0fef85 | 7017 | spin_unlock_irq(&phba->hbalock); |
dea3101e | 7018 | return 0; |
7019 | } | |
7020 | ||
e59058c4 | 7021 | /** |
3621a710 | 7022 | * lpfc_sli_get_buffer_tag - allocates a tag for a CMD_QUE_XRI64_CX buffer |
e59058c4 JS |
7023 | * @phba: Pointer to HBA context object. |
7024 | * | |
7025 | * When HBQ is enabled, buffers are searched based on tags. This function | |
7026 | * allocates a tag for buffer posted using CMD_QUE_XRI64_CX iocb. The | |
7027 | * tag is bit wise or-ed with QUE_BUFTAG_BIT to make sure that the tag | |
7028 | * does not conflict with tags of buffer posted for unsolicited events. | |
7029 | * The function returns the allocated tag. The function is called with | |
7030 | * no locks held. | |
7031 | **/ | |
76bb24ef JS |
7032 | uint32_t |
7033 | lpfc_sli_get_buffer_tag(struct lpfc_hba *phba) | |
7034 | { | |
7035 | spin_lock_irq(&phba->hbalock); | |
7036 | phba->buffer_tag_count++; | |
7037 | /* | |
7038 | * Always set the QUE_BUFTAG_BIT to distiguish between | |
7039 | * a tag assigned by HBQ. | |
7040 | */ | |
7041 | phba->buffer_tag_count |= QUE_BUFTAG_BIT; | |
7042 | spin_unlock_irq(&phba->hbalock); | |
7043 | return phba->buffer_tag_count; | |
7044 | } | |
7045 | ||
e59058c4 | 7046 | /** |
3621a710 | 7047 | * lpfc_sli_ring_taggedbuf_get - find HBQ buffer associated with given tag |
e59058c4 JS |
7048 | * @phba: Pointer to HBA context object. |
7049 | * @pring: Pointer to driver SLI ring object. | |
7050 | * @tag: Buffer tag. | |
7051 | * | |
7052 | * Buffers posted using CMD_QUE_XRI64_CX iocb are in pring->postbufq | |
7053 | * list. After HBA DMA data to these buffers, CMD_IOCB_RET_XRI64_CX | |
7054 | * iocb is posted to the response ring with the tag of the buffer. | |
7055 | * This function searches the pring->postbufq list using the tag | |
7056 | * to find buffer associated with CMD_IOCB_RET_XRI64_CX | |
7057 | * iocb. If the buffer is found then lpfc_dmabuf object of the | |
7058 | * buffer is returned to the caller else NULL is returned. | |
7059 | * This function is called with no lock held. | |
7060 | **/ | |
76bb24ef JS |
7061 | struct lpfc_dmabuf * |
7062 | lpfc_sli_ring_taggedbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
7063 | uint32_t tag) | |
7064 | { | |
7065 | struct lpfc_dmabuf *mp, *next_mp; | |
7066 | struct list_head *slp = &pring->postbufq; | |
7067 | ||
7068 | /* Search postbufq, from the begining, looking for a match on tag */ | |
7069 | spin_lock_irq(&phba->hbalock); | |
7070 | list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) { | |
7071 | if (mp->buffer_tag == tag) { | |
7072 | list_del_init(&mp->list); | |
7073 | pring->postbufq_cnt--; | |
7074 | spin_unlock_irq(&phba->hbalock); | |
7075 | return mp; | |
7076 | } | |
7077 | } | |
7078 | ||
7079 | spin_unlock_irq(&phba->hbalock); | |
7080 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
d7c255b2 | 7081 | "0402 Cannot find virtual addr for buffer tag on " |
76bb24ef JS |
7082 | "ring %d Data x%lx x%p x%p x%x\n", |
7083 | pring->ringno, (unsigned long) tag, | |
7084 | slp->next, slp->prev, pring->postbufq_cnt); | |
7085 | ||
7086 | return NULL; | |
7087 | } | |
dea3101e | 7088 | |
e59058c4 | 7089 | /** |
3621a710 | 7090 | * lpfc_sli_ringpostbuf_get - search buffers for unsolicited CT and ELS events |
e59058c4 JS |
7091 | * @phba: Pointer to HBA context object. |
7092 | * @pring: Pointer to driver SLI ring object. | |
7093 | * @phys: DMA address of the buffer. | |
7094 | * | |
7095 | * This function searches the buffer list using the dma_address | |
7096 | * of unsolicited event to find the driver's lpfc_dmabuf object | |
7097 | * corresponding to the dma_address. The function returns the | |
7098 | * lpfc_dmabuf object if a buffer is found else it returns NULL. | |
7099 | * This function is called by the ct and els unsolicited event | |
7100 | * handlers to get the buffer associated with the unsolicited | |
7101 | * event. | |
7102 | * | |
7103 | * This function is called with no lock held. | |
7104 | **/ | |
dea3101e | 7105 | struct lpfc_dmabuf * |
7106 | lpfc_sli_ringpostbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
7107 | dma_addr_t phys) | |
7108 | { | |
7109 | struct lpfc_dmabuf *mp, *next_mp; | |
7110 | struct list_head *slp = &pring->postbufq; | |
7111 | ||
7112 | /* Search postbufq, from the begining, looking for a match on phys */ | |
2e0fef85 | 7113 | spin_lock_irq(&phba->hbalock); |
dea3101e | 7114 | list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) { |
7115 | if (mp->phys == phys) { | |
7116 | list_del_init(&mp->list); | |
7117 | pring->postbufq_cnt--; | |
2e0fef85 | 7118 | spin_unlock_irq(&phba->hbalock); |
dea3101e | 7119 | return mp; |
7120 | } | |
7121 | } | |
7122 | ||
2e0fef85 | 7123 | spin_unlock_irq(&phba->hbalock); |
dea3101e | 7124 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
e8b62011 | 7125 | "0410 Cannot find virtual addr for mapped buf on " |
dea3101e | 7126 | "ring %d Data x%llx x%p x%p x%x\n", |
e8b62011 | 7127 | pring->ringno, (unsigned long long)phys, |
dea3101e | 7128 | slp->next, slp->prev, pring->postbufq_cnt); |
7129 | return NULL; | |
7130 | } | |
7131 | ||
e59058c4 | 7132 | /** |
3621a710 | 7133 | * lpfc_sli_abort_els_cmpl - Completion handler for the els abort iocbs |
e59058c4 JS |
7134 | * @phba: Pointer to HBA context object. |
7135 | * @cmdiocb: Pointer to driver command iocb object. | |
7136 | * @rspiocb: Pointer to driver response iocb object. | |
7137 | * | |
7138 | * This function is the completion handler for the abort iocbs for | |
7139 | * ELS commands. This function is called from the ELS ring event | |
7140 | * handler with no lock held. This function frees memory resources | |
7141 | * associated with the abort iocb. | |
7142 | **/ | |
dea3101e | 7143 | static void |
2e0fef85 JS |
7144 | lpfc_sli_abort_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
7145 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 7146 | { |
2e0fef85 | 7147 | IOCB_t *irsp = &rspiocb->iocb; |
2680eeaa | 7148 | uint16_t abort_iotag, abort_context; |
92d7f7b0 | 7149 | struct lpfc_iocbq *abort_iocb; |
2680eeaa JS |
7150 | struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING]; |
7151 | ||
7152 | abort_iocb = NULL; | |
2680eeaa JS |
7153 | |
7154 | if (irsp->ulpStatus) { | |
7155 | abort_context = cmdiocb->iocb.un.acxri.abortContextTag; | |
7156 | abort_iotag = cmdiocb->iocb.un.acxri.abortIoTag; | |
7157 | ||
2e0fef85 | 7158 | spin_lock_irq(&phba->hbalock); |
45ed1190 JS |
7159 | if (phba->sli_rev < LPFC_SLI_REV4) { |
7160 | if (abort_iotag != 0 && | |
7161 | abort_iotag <= phba->sli.last_iotag) | |
7162 | abort_iocb = | |
7163 | phba->sli.iocbq_lookup[abort_iotag]; | |
7164 | } else | |
7165 | /* For sli4 the abort_tag is the XRI, | |
7166 | * so the abort routine puts the iotag of the iocb | |
7167 | * being aborted in the context field of the abort | |
7168 | * IOCB. | |
7169 | */ | |
7170 | abort_iocb = phba->sli.iocbq_lookup[abort_context]; | |
2680eeaa | 7171 | |
58da1ffb JS |
7172 | /* |
7173 | * If the iocb is not found in Firmware queue the iocb | |
7174 | * might have completed already. Do not free it again. | |
7175 | */ | |
9b379605 | 7176 | if (irsp->ulpStatus == IOSTAT_LOCAL_REJECT) { |
45ed1190 JS |
7177 | if (irsp->un.ulpWord[4] != IOERR_NO_XRI) { |
7178 | spin_unlock_irq(&phba->hbalock); | |
7179 | lpfc_sli_release_iocbq(phba, cmdiocb); | |
7180 | return; | |
7181 | } | |
7182 | /* For SLI4 the ulpContext field for abort IOCB | |
7183 | * holds the iotag of the IOCB being aborted so | |
7184 | * the local abort_context needs to be reset to | |
7185 | * match the aborted IOCBs ulpContext. | |
7186 | */ | |
7187 | if (abort_iocb && phba->sli_rev == LPFC_SLI_REV4) | |
7188 | abort_context = abort_iocb->iocb.ulpContext; | |
58da1ffb | 7189 | } |
2a9bf3d0 JS |
7190 | |
7191 | lpfc_printf_log(phba, KERN_WARNING, LOG_ELS | LOG_SLI, | |
7192 | "0327 Cannot abort els iocb %p " | |
7193 | "with tag %x context %x, abort status %x, " | |
7194 | "abort code %x\n", | |
7195 | abort_iocb, abort_iotag, abort_context, | |
7196 | irsp->ulpStatus, irsp->un.ulpWord[4]); | |
2680eeaa JS |
7197 | /* |
7198 | * make sure we have the right iocbq before taking it | |
7199 | * off the txcmplq and try to call completion routine. | |
7200 | */ | |
2e0fef85 JS |
7201 | if (!abort_iocb || |
7202 | abort_iocb->iocb.ulpContext != abort_context || | |
7203 | (abort_iocb->iocb_flag & LPFC_DRIVER_ABORTED) == 0) | |
7204 | spin_unlock_irq(&phba->hbalock); | |
341af102 JS |
7205 | else if (phba->sli_rev < LPFC_SLI_REV4) { |
7206 | /* | |
7207 | * leave the SLI4 aborted command on the txcmplq | |
7208 | * list and the command complete WCQE's XB bit | |
7209 | * will tell whether the SGL (XRI) can be released | |
7210 | * immediately or to the aborted SGL list for the | |
7211 | * following abort XRI from the HBA. | |
7212 | */ | |
92d7f7b0 | 7213 | list_del_init(&abort_iocb->list); |
2a9bf3d0 JS |
7214 | if (abort_iocb->iocb_flag & LPFC_IO_ON_Q) { |
7215 | abort_iocb->iocb_flag &= ~LPFC_IO_ON_Q; | |
7216 | pring->txcmplq_cnt--; | |
7217 | } | |
2680eeaa | 7218 | |
0ff10d46 JS |
7219 | /* Firmware could still be in progress of DMAing |
7220 | * payload, so don't free data buffer till after | |
7221 | * a hbeat. | |
7222 | */ | |
7223 | abort_iocb->iocb_flag |= LPFC_DELAY_MEM_FREE; | |
92d7f7b0 | 7224 | abort_iocb->iocb_flag &= ~LPFC_DRIVER_ABORTED; |
341af102 JS |
7225 | spin_unlock_irq(&phba->hbalock); |
7226 | ||
92d7f7b0 | 7227 | abort_iocb->iocb.ulpStatus = IOSTAT_LOCAL_REJECT; |
341af102 | 7228 | abort_iocb->iocb.un.ulpWord[4] = IOERR_ABORT_REQUESTED; |
92d7f7b0 | 7229 | (abort_iocb->iocb_cmpl)(phba, abort_iocb, abort_iocb); |
49198b37 JS |
7230 | } else |
7231 | spin_unlock_irq(&phba->hbalock); | |
2680eeaa JS |
7232 | } |
7233 | ||
604a3e30 | 7234 | lpfc_sli_release_iocbq(phba, cmdiocb); |
dea3101e | 7235 | return; |
7236 | } | |
7237 | ||
e59058c4 | 7238 | /** |
3621a710 | 7239 | * lpfc_ignore_els_cmpl - Completion handler for aborted ELS command |
e59058c4 JS |
7240 | * @phba: Pointer to HBA context object. |
7241 | * @cmdiocb: Pointer to driver command iocb object. | |
7242 | * @rspiocb: Pointer to driver response iocb object. | |
7243 | * | |
7244 | * The function is called from SLI ring event handler with no | |
7245 | * lock held. This function is the completion handler for ELS commands | |
7246 | * which are aborted. The function frees memory resources used for | |
7247 | * the aborted ELS commands. | |
7248 | **/ | |
92d7f7b0 JS |
7249 | static void |
7250 | lpfc_ignore_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, | |
7251 | struct lpfc_iocbq *rspiocb) | |
7252 | { | |
7253 | IOCB_t *irsp = &rspiocb->iocb; | |
7254 | ||
7255 | /* ELS cmd tag <ulpIoTag> completes */ | |
7256 | lpfc_printf_log(phba, KERN_INFO, LOG_ELS, | |
d7c255b2 | 7257 | "0139 Ignoring ELS cmd tag x%x completion Data: " |
92d7f7b0 | 7258 | "x%x x%x x%x\n", |
e8b62011 | 7259 | irsp->ulpIoTag, irsp->ulpStatus, |
92d7f7b0 | 7260 | irsp->un.ulpWord[4], irsp->ulpTimeout); |
858c9f6c JS |
7261 | if (cmdiocb->iocb.ulpCommand == CMD_GEN_REQUEST64_CR) |
7262 | lpfc_ct_free_iocb(phba, cmdiocb); | |
7263 | else | |
7264 | lpfc_els_free_iocb(phba, cmdiocb); | |
92d7f7b0 JS |
7265 | return; |
7266 | } | |
7267 | ||
e59058c4 | 7268 | /** |
3621a710 | 7269 | * lpfc_sli_issue_abort_iotag - Abort function for a command iocb |
e59058c4 JS |
7270 | * @phba: Pointer to HBA context object. |
7271 | * @pring: Pointer to driver SLI ring object. | |
7272 | * @cmdiocb: Pointer to driver command iocb object. | |
7273 | * | |
7274 | * This function issues an abort iocb for the provided command | |
7275 | * iocb. This function is called with hbalock held. | |
7276 | * The function returns 0 when it fails due to memory allocation | |
7277 | * failure or when the command iocb is an abort request. | |
7278 | **/ | |
dea3101e | 7279 | int |
2e0fef85 JS |
7280 | lpfc_sli_issue_abort_iotag(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, |
7281 | struct lpfc_iocbq *cmdiocb) | |
dea3101e | 7282 | { |
2e0fef85 | 7283 | struct lpfc_vport *vport = cmdiocb->vport; |
0bd4ca25 | 7284 | struct lpfc_iocbq *abtsiocbp; |
dea3101e | 7285 | IOCB_t *icmd = NULL; |
7286 | IOCB_t *iabt = NULL; | |
07951076 JS |
7287 | int retval = IOCB_ERROR; |
7288 | ||
92d7f7b0 JS |
7289 | /* |
7290 | * There are certain command types we don't want to abort. And we | |
7291 | * don't want to abort commands that are already in the process of | |
7292 | * being aborted. | |
07951076 JS |
7293 | */ |
7294 | icmd = &cmdiocb->iocb; | |
2e0fef85 | 7295 | if (icmd->ulpCommand == CMD_ABORT_XRI_CN || |
92d7f7b0 JS |
7296 | icmd->ulpCommand == CMD_CLOSE_XRI_CN || |
7297 | (cmdiocb->iocb_flag & LPFC_DRIVER_ABORTED) != 0) | |
07951076 JS |
7298 | return 0; |
7299 | ||
858c9f6c JS |
7300 | /* If we're unloading, don't abort iocb on the ELS ring, but change the |
7301 | * callback so that nothing happens when it finishes. | |
07951076 | 7302 | */ |
858c9f6c JS |
7303 | if ((vport->load_flag & FC_UNLOADING) && |
7304 | (pring->ringno == LPFC_ELS_RING)) { | |
92d7f7b0 JS |
7305 | if (cmdiocb->iocb_flag & LPFC_IO_FABRIC) |
7306 | cmdiocb->fabric_iocb_cmpl = lpfc_ignore_els_cmpl; | |
7307 | else | |
7308 | cmdiocb->iocb_cmpl = lpfc_ignore_els_cmpl; | |
07951076 | 7309 | goto abort_iotag_exit; |
92d7f7b0 | 7310 | } |
dea3101e | 7311 | |
7312 | /* issue ABTS for this IOCB based on iotag */ | |
92d7f7b0 | 7313 | abtsiocbp = __lpfc_sli_get_iocbq(phba); |
dea3101e | 7314 | if (abtsiocbp == NULL) |
7315 | return 0; | |
dea3101e | 7316 | |
07951076 | 7317 | /* This signals the response to set the correct status |
341af102 | 7318 | * before calling the completion handler |
07951076 JS |
7319 | */ |
7320 | cmdiocb->iocb_flag |= LPFC_DRIVER_ABORTED; | |
7321 | ||
dea3101e | 7322 | iabt = &abtsiocbp->iocb; |
07951076 JS |
7323 | iabt->un.acxri.abortType = ABORT_TYPE_ABTS; |
7324 | iabt->un.acxri.abortContextTag = icmd->ulpContext; | |
45ed1190 | 7325 | if (phba->sli_rev == LPFC_SLI_REV4) { |
da0436e9 | 7326 | iabt->un.acxri.abortIoTag = cmdiocb->sli4_xritag; |
45ed1190 JS |
7327 | iabt->un.acxri.abortContextTag = cmdiocb->iotag; |
7328 | } | |
da0436e9 JS |
7329 | else |
7330 | iabt->un.acxri.abortIoTag = icmd->ulpIoTag; | |
07951076 JS |
7331 | iabt->ulpLe = 1; |
7332 | iabt->ulpClass = icmd->ulpClass; | |
dea3101e | 7333 | |
5ffc266e JS |
7334 | /* ABTS WQE must go to the same WQ as the WQE to be aborted */ |
7335 | abtsiocbp->fcp_wqidx = cmdiocb->fcp_wqidx; | |
341af102 JS |
7336 | if (cmdiocb->iocb_flag & LPFC_IO_FCP) |
7337 | abtsiocbp->iocb_flag |= LPFC_USE_FCPWQIDX; | |
5ffc266e | 7338 | |
2e0fef85 | 7339 | if (phba->link_state >= LPFC_LINK_UP) |
07951076 JS |
7340 | iabt->ulpCommand = CMD_ABORT_XRI_CN; |
7341 | else | |
7342 | iabt->ulpCommand = CMD_CLOSE_XRI_CN; | |
dea3101e | 7343 | |
07951076 | 7344 | abtsiocbp->iocb_cmpl = lpfc_sli_abort_els_cmpl; |
5b8bd0c9 | 7345 | |
e8b62011 JS |
7346 | lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, |
7347 | "0339 Abort xri x%x, original iotag x%x, " | |
7348 | "abort cmd iotag x%x\n", | |
2a9bf3d0 | 7349 | iabt->un.acxri.abortIoTag, |
e8b62011 | 7350 | iabt->un.acxri.abortContextTag, |
2a9bf3d0 | 7351 | abtsiocbp->iotag); |
da0436e9 | 7352 | retval = __lpfc_sli_issue_iocb(phba, pring->ringno, abtsiocbp, 0); |
dea3101e | 7353 | |
d7c255b2 JS |
7354 | if (retval) |
7355 | __lpfc_sli_release_iocbq(phba, abtsiocbp); | |
07951076 | 7356 | abort_iotag_exit: |
2e0fef85 JS |
7357 | /* |
7358 | * Caller to this routine should check for IOCB_ERROR | |
7359 | * and handle it properly. This routine no longer removes | |
7360 | * iocb off txcmplq and call compl in case of IOCB_ERROR. | |
07951076 | 7361 | */ |
2e0fef85 | 7362 | return retval; |
dea3101e | 7363 | } |
7364 | ||
e59058c4 | 7365 | /** |
3621a710 | 7366 | * lpfc_sli_validate_fcp_iocb - find commands associated with a vport or LUN |
e59058c4 JS |
7367 | * @iocbq: Pointer to driver iocb object. |
7368 | * @vport: Pointer to driver virtual port object. | |
7369 | * @tgt_id: SCSI ID of the target. | |
7370 | * @lun_id: LUN ID of the scsi device. | |
7371 | * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST | |
7372 | * | |
3621a710 | 7373 | * This function acts as an iocb filter for functions which abort or count |
e59058c4 JS |
7374 | * all FCP iocbs pending on a lun/SCSI target/SCSI host. It will return |
7375 | * 0 if the filtering criteria is met for the given iocb and will return | |
7376 | * 1 if the filtering criteria is not met. | |
7377 | * If ctx_cmd == LPFC_CTX_LUN, the function returns 0 only if the | |
7378 | * given iocb is for the SCSI device specified by vport, tgt_id and | |
7379 | * lun_id parameter. | |
7380 | * If ctx_cmd == LPFC_CTX_TGT, the function returns 0 only if the | |
7381 | * given iocb is for the SCSI target specified by vport and tgt_id | |
7382 | * parameters. | |
7383 | * If ctx_cmd == LPFC_CTX_HOST, the function returns 0 only if the | |
7384 | * given iocb is for the SCSI host associated with the given vport. | |
7385 | * This function is called with no locks held. | |
7386 | **/ | |
dea3101e | 7387 | static int |
51ef4c26 JS |
7388 | lpfc_sli_validate_fcp_iocb(struct lpfc_iocbq *iocbq, struct lpfc_vport *vport, |
7389 | uint16_t tgt_id, uint64_t lun_id, | |
0bd4ca25 | 7390 | lpfc_ctx_cmd ctx_cmd) |
dea3101e | 7391 | { |
0bd4ca25 | 7392 | struct lpfc_scsi_buf *lpfc_cmd; |
dea3101e | 7393 | int rc = 1; |
7394 | ||
0bd4ca25 JSEC |
7395 | if (!(iocbq->iocb_flag & LPFC_IO_FCP)) |
7396 | return rc; | |
7397 | ||
51ef4c26 JS |
7398 | if (iocbq->vport != vport) |
7399 | return rc; | |
7400 | ||
0bd4ca25 | 7401 | lpfc_cmd = container_of(iocbq, struct lpfc_scsi_buf, cur_iocbq); |
0bd4ca25 | 7402 | |
495a714c | 7403 | if (lpfc_cmd->pCmd == NULL) |
dea3101e | 7404 | return rc; |
7405 | ||
7406 | switch (ctx_cmd) { | |
7407 | case LPFC_CTX_LUN: | |
495a714c JS |
7408 | if ((lpfc_cmd->rdata->pnode) && |
7409 | (lpfc_cmd->rdata->pnode->nlp_sid == tgt_id) && | |
7410 | (scsilun_to_int(&lpfc_cmd->fcp_cmnd->fcp_lun) == lun_id)) | |
dea3101e | 7411 | rc = 0; |
7412 | break; | |
7413 | case LPFC_CTX_TGT: | |
495a714c JS |
7414 | if ((lpfc_cmd->rdata->pnode) && |
7415 | (lpfc_cmd->rdata->pnode->nlp_sid == tgt_id)) | |
dea3101e | 7416 | rc = 0; |
7417 | break; | |
dea3101e | 7418 | case LPFC_CTX_HOST: |
7419 | rc = 0; | |
7420 | break; | |
7421 | default: | |
7422 | printk(KERN_ERR "%s: Unknown context cmd type, value %d\n", | |
cadbd4a5 | 7423 | __func__, ctx_cmd); |
dea3101e | 7424 | break; |
7425 | } | |
7426 | ||
7427 | return rc; | |
7428 | } | |
7429 | ||
e59058c4 | 7430 | /** |
3621a710 | 7431 | * lpfc_sli_sum_iocb - Function to count the number of FCP iocbs pending |
e59058c4 JS |
7432 | * @vport: Pointer to virtual port. |
7433 | * @tgt_id: SCSI ID of the target. | |
7434 | * @lun_id: LUN ID of the scsi device. | |
7435 | * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST. | |
7436 | * | |
7437 | * This function returns number of FCP commands pending for the vport. | |
7438 | * When ctx_cmd == LPFC_CTX_LUN, the function returns number of FCP | |
7439 | * commands pending on the vport associated with SCSI device specified | |
7440 | * by tgt_id and lun_id parameters. | |
7441 | * When ctx_cmd == LPFC_CTX_TGT, the function returns number of FCP | |
7442 | * commands pending on the vport associated with SCSI target specified | |
7443 | * by tgt_id parameter. | |
7444 | * When ctx_cmd == LPFC_CTX_HOST, the function returns number of FCP | |
7445 | * commands pending on the vport. | |
7446 | * This function returns the number of iocbs which satisfy the filter. | |
7447 | * This function is called without any lock held. | |
7448 | **/ | |
dea3101e | 7449 | int |
51ef4c26 JS |
7450 | lpfc_sli_sum_iocb(struct lpfc_vport *vport, uint16_t tgt_id, uint64_t lun_id, |
7451 | lpfc_ctx_cmd ctx_cmd) | |
dea3101e | 7452 | { |
51ef4c26 | 7453 | struct lpfc_hba *phba = vport->phba; |
0bd4ca25 JSEC |
7454 | struct lpfc_iocbq *iocbq; |
7455 | int sum, i; | |
dea3101e | 7456 | |
0bd4ca25 JSEC |
7457 | for (i = 1, sum = 0; i <= phba->sli.last_iotag; i++) { |
7458 | iocbq = phba->sli.iocbq_lookup[i]; | |
dea3101e | 7459 | |
51ef4c26 JS |
7460 | if (lpfc_sli_validate_fcp_iocb (iocbq, vport, tgt_id, lun_id, |
7461 | ctx_cmd) == 0) | |
0bd4ca25 | 7462 | sum++; |
dea3101e | 7463 | } |
0bd4ca25 | 7464 | |
dea3101e | 7465 | return sum; |
7466 | } | |
7467 | ||
e59058c4 | 7468 | /** |
3621a710 | 7469 | * lpfc_sli_abort_fcp_cmpl - Completion handler function for aborted FCP IOCBs |
e59058c4 JS |
7470 | * @phba: Pointer to HBA context object |
7471 | * @cmdiocb: Pointer to command iocb object. | |
7472 | * @rspiocb: Pointer to response iocb object. | |
7473 | * | |
7474 | * This function is called when an aborted FCP iocb completes. This | |
7475 | * function is called by the ring event handler with no lock held. | |
7476 | * This function frees the iocb. | |
7477 | **/ | |
5eb95af0 | 7478 | void |
2e0fef85 JS |
7479 | lpfc_sli_abort_fcp_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
7480 | struct lpfc_iocbq *rspiocb) | |
5eb95af0 | 7481 | { |
604a3e30 | 7482 | lpfc_sli_release_iocbq(phba, cmdiocb); |
5eb95af0 JSEC |
7483 | return; |
7484 | } | |
7485 | ||
e59058c4 | 7486 | /** |
3621a710 | 7487 | * lpfc_sli_abort_iocb - issue abort for all commands on a host/target/LUN |
e59058c4 JS |
7488 | * @vport: Pointer to virtual port. |
7489 | * @pring: Pointer to driver SLI ring object. | |
7490 | * @tgt_id: SCSI ID of the target. | |
7491 | * @lun_id: LUN ID of the scsi device. | |
7492 | * @abort_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST. | |
7493 | * | |
7494 | * This function sends an abort command for every SCSI command | |
7495 | * associated with the given virtual port pending on the ring | |
7496 | * filtered by lpfc_sli_validate_fcp_iocb function. | |
7497 | * When abort_cmd == LPFC_CTX_LUN, the function sends abort only to the | |
7498 | * FCP iocbs associated with lun specified by tgt_id and lun_id | |
7499 | * parameters | |
7500 | * When abort_cmd == LPFC_CTX_TGT, the function sends abort only to the | |
7501 | * FCP iocbs associated with SCSI target specified by tgt_id parameter. | |
7502 | * When abort_cmd == LPFC_CTX_HOST, the function sends abort to all | |
7503 | * FCP iocbs associated with virtual port. | |
7504 | * This function returns number of iocbs it failed to abort. | |
7505 | * This function is called with no locks held. | |
7506 | **/ | |
dea3101e | 7507 | int |
51ef4c26 JS |
7508 | lpfc_sli_abort_iocb(struct lpfc_vport *vport, struct lpfc_sli_ring *pring, |
7509 | uint16_t tgt_id, uint64_t lun_id, lpfc_ctx_cmd abort_cmd) | |
dea3101e | 7510 | { |
51ef4c26 | 7511 | struct lpfc_hba *phba = vport->phba; |
0bd4ca25 JSEC |
7512 | struct lpfc_iocbq *iocbq; |
7513 | struct lpfc_iocbq *abtsiocb; | |
dea3101e | 7514 | IOCB_t *cmd = NULL; |
dea3101e | 7515 | int errcnt = 0, ret_val = 0; |
0bd4ca25 | 7516 | int i; |
dea3101e | 7517 | |
0bd4ca25 JSEC |
7518 | for (i = 1; i <= phba->sli.last_iotag; i++) { |
7519 | iocbq = phba->sli.iocbq_lookup[i]; | |
dea3101e | 7520 | |
51ef4c26 | 7521 | if (lpfc_sli_validate_fcp_iocb(iocbq, vport, tgt_id, lun_id, |
2e0fef85 | 7522 | abort_cmd) != 0) |
dea3101e | 7523 | continue; |
7524 | ||
7525 | /* issue ABTS for this IOCB based on iotag */ | |
0bd4ca25 | 7526 | abtsiocb = lpfc_sli_get_iocbq(phba); |
dea3101e | 7527 | if (abtsiocb == NULL) { |
7528 | errcnt++; | |
7529 | continue; | |
7530 | } | |
dea3101e | 7531 | |
0bd4ca25 | 7532 | cmd = &iocbq->iocb; |
dea3101e | 7533 | abtsiocb->iocb.un.acxri.abortType = ABORT_TYPE_ABTS; |
7534 | abtsiocb->iocb.un.acxri.abortContextTag = cmd->ulpContext; | |
da0436e9 JS |
7535 | if (phba->sli_rev == LPFC_SLI_REV4) |
7536 | abtsiocb->iocb.un.acxri.abortIoTag = iocbq->sli4_xritag; | |
7537 | else | |
7538 | abtsiocb->iocb.un.acxri.abortIoTag = cmd->ulpIoTag; | |
dea3101e | 7539 | abtsiocb->iocb.ulpLe = 1; |
7540 | abtsiocb->iocb.ulpClass = cmd->ulpClass; | |
2e0fef85 | 7541 | abtsiocb->vport = phba->pport; |
dea3101e | 7542 | |
5ffc266e JS |
7543 | /* ABTS WQE must go to the same WQ as the WQE to be aborted */ |
7544 | abtsiocb->fcp_wqidx = iocbq->fcp_wqidx; | |
341af102 JS |
7545 | if (iocbq->iocb_flag & LPFC_IO_FCP) |
7546 | abtsiocb->iocb_flag |= LPFC_USE_FCPWQIDX; | |
5ffc266e | 7547 | |
2e0fef85 | 7548 | if (lpfc_is_link_up(phba)) |
dea3101e | 7549 | abtsiocb->iocb.ulpCommand = CMD_ABORT_XRI_CN; |
7550 | else | |
7551 | abtsiocb->iocb.ulpCommand = CMD_CLOSE_XRI_CN; | |
7552 | ||
5eb95af0 JSEC |
7553 | /* Setup callback routine and issue the command. */ |
7554 | abtsiocb->iocb_cmpl = lpfc_sli_abort_fcp_cmpl; | |
da0436e9 JS |
7555 | ret_val = lpfc_sli_issue_iocb(phba, pring->ringno, |
7556 | abtsiocb, 0); | |
dea3101e | 7557 | if (ret_val == IOCB_ERROR) { |
604a3e30 | 7558 | lpfc_sli_release_iocbq(phba, abtsiocb); |
dea3101e | 7559 | errcnt++; |
7560 | continue; | |
7561 | } | |
7562 | } | |
7563 | ||
7564 | return errcnt; | |
7565 | } | |
7566 | ||
e59058c4 | 7567 | /** |
3621a710 | 7568 | * lpfc_sli_wake_iocb_wait - lpfc_sli_issue_iocb_wait's completion handler |
e59058c4 JS |
7569 | * @phba: Pointer to HBA context object. |
7570 | * @cmdiocbq: Pointer to command iocb. | |
7571 | * @rspiocbq: Pointer to response iocb. | |
7572 | * | |
7573 | * This function is the completion handler for iocbs issued using | |
7574 | * lpfc_sli_issue_iocb_wait function. This function is called by the | |
7575 | * ring event handler function without any lock held. This function | |
7576 | * can be called from both worker thread context and interrupt | |
7577 | * context. This function also can be called from other thread which | |
7578 | * cleans up the SLI layer objects. | |
7579 | * This function copy the contents of the response iocb to the | |
7580 | * response iocb memory object provided by the caller of | |
7581 | * lpfc_sli_issue_iocb_wait and then wakes up the thread which | |
7582 | * sleeps for the iocb completion. | |
7583 | **/ | |
68876920 JSEC |
7584 | static void |
7585 | lpfc_sli_wake_iocb_wait(struct lpfc_hba *phba, | |
7586 | struct lpfc_iocbq *cmdiocbq, | |
7587 | struct lpfc_iocbq *rspiocbq) | |
dea3101e | 7588 | { |
68876920 JSEC |
7589 | wait_queue_head_t *pdone_q; |
7590 | unsigned long iflags; | |
0f65ff68 | 7591 | struct lpfc_scsi_buf *lpfc_cmd; |
dea3101e | 7592 | |
2e0fef85 | 7593 | spin_lock_irqsave(&phba->hbalock, iflags); |
68876920 JSEC |
7594 | cmdiocbq->iocb_flag |= LPFC_IO_WAKE; |
7595 | if (cmdiocbq->context2 && rspiocbq) | |
7596 | memcpy(&((struct lpfc_iocbq *)cmdiocbq->context2)->iocb, | |
7597 | &rspiocbq->iocb, sizeof(IOCB_t)); | |
7598 | ||
0f65ff68 JS |
7599 | /* Set the exchange busy flag for task management commands */ |
7600 | if ((cmdiocbq->iocb_flag & LPFC_IO_FCP) && | |
7601 | !(cmdiocbq->iocb_flag & LPFC_IO_LIBDFC)) { | |
7602 | lpfc_cmd = container_of(cmdiocbq, struct lpfc_scsi_buf, | |
7603 | cur_iocbq); | |
7604 | lpfc_cmd->exch_busy = rspiocbq->iocb_flag & LPFC_EXCHANGE_BUSY; | |
7605 | } | |
7606 | ||
68876920 | 7607 | pdone_q = cmdiocbq->context_un.wait_queue; |
68876920 JSEC |
7608 | if (pdone_q) |
7609 | wake_up(pdone_q); | |
858c9f6c | 7610 | spin_unlock_irqrestore(&phba->hbalock, iflags); |
dea3101e | 7611 | return; |
7612 | } | |
7613 | ||
d11e31dd JS |
7614 | /** |
7615 | * lpfc_chk_iocb_flg - Test IOCB flag with lock held. | |
7616 | * @phba: Pointer to HBA context object.. | |
7617 | * @piocbq: Pointer to command iocb. | |
7618 | * @flag: Flag to test. | |
7619 | * | |
7620 | * This routine grabs the hbalock and then test the iocb_flag to | |
7621 | * see if the passed in flag is set. | |
7622 | * Returns: | |
7623 | * 1 if flag is set. | |
7624 | * 0 if flag is not set. | |
7625 | **/ | |
7626 | static int | |
7627 | lpfc_chk_iocb_flg(struct lpfc_hba *phba, | |
7628 | struct lpfc_iocbq *piocbq, uint32_t flag) | |
7629 | { | |
7630 | unsigned long iflags; | |
7631 | int ret; | |
7632 | ||
7633 | spin_lock_irqsave(&phba->hbalock, iflags); | |
7634 | ret = piocbq->iocb_flag & flag; | |
7635 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
7636 | return ret; | |
7637 | ||
7638 | } | |
7639 | ||
e59058c4 | 7640 | /** |
3621a710 | 7641 | * lpfc_sli_issue_iocb_wait - Synchronous function to issue iocb commands |
e59058c4 JS |
7642 | * @phba: Pointer to HBA context object.. |
7643 | * @pring: Pointer to sli ring. | |
7644 | * @piocb: Pointer to command iocb. | |
7645 | * @prspiocbq: Pointer to response iocb. | |
7646 | * @timeout: Timeout in number of seconds. | |
7647 | * | |
7648 | * This function issues the iocb to firmware and waits for the | |
7649 | * iocb to complete. If the iocb command is not | |
7650 | * completed within timeout seconds, it returns IOCB_TIMEDOUT. | |
7651 | * Caller should not free the iocb resources if this function | |
7652 | * returns IOCB_TIMEDOUT. | |
7653 | * The function waits for the iocb completion using an | |
7654 | * non-interruptible wait. | |
7655 | * This function will sleep while waiting for iocb completion. | |
7656 | * So, this function should not be called from any context which | |
7657 | * does not allow sleeping. Due to the same reason, this function | |
7658 | * cannot be called with interrupt disabled. | |
7659 | * This function assumes that the iocb completions occur while | |
7660 | * this function sleep. So, this function cannot be called from | |
7661 | * the thread which process iocb completion for this ring. | |
7662 | * This function clears the iocb_flag of the iocb object before | |
7663 | * issuing the iocb and the iocb completion handler sets this | |
7664 | * flag and wakes this thread when the iocb completes. | |
7665 | * The contents of the response iocb will be copied to prspiocbq | |
7666 | * by the completion handler when the command completes. | |
7667 | * This function returns IOCB_SUCCESS when success. | |
7668 | * This function is called with no lock held. | |
7669 | **/ | |
dea3101e | 7670 | int |
2e0fef85 | 7671 | lpfc_sli_issue_iocb_wait(struct lpfc_hba *phba, |
da0436e9 | 7672 | uint32_t ring_number, |
2e0fef85 JS |
7673 | struct lpfc_iocbq *piocb, |
7674 | struct lpfc_iocbq *prspiocbq, | |
68876920 | 7675 | uint32_t timeout) |
dea3101e | 7676 | { |
7259f0d0 | 7677 | DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q); |
68876920 JSEC |
7678 | long timeleft, timeout_req = 0; |
7679 | int retval = IOCB_SUCCESS; | |
875fbdfe | 7680 | uint32_t creg_val; |
2a9bf3d0 | 7681 | struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING]; |
dea3101e | 7682 | /* |
68876920 JSEC |
7683 | * If the caller has provided a response iocbq buffer, then context2 |
7684 | * is NULL or its an error. | |
dea3101e | 7685 | */ |
68876920 JSEC |
7686 | if (prspiocbq) { |
7687 | if (piocb->context2) | |
7688 | return IOCB_ERROR; | |
7689 | piocb->context2 = prspiocbq; | |
dea3101e | 7690 | } |
7691 | ||
68876920 JSEC |
7692 | piocb->iocb_cmpl = lpfc_sli_wake_iocb_wait; |
7693 | piocb->context_un.wait_queue = &done_q; | |
7694 | piocb->iocb_flag &= ~LPFC_IO_WAKE; | |
dea3101e | 7695 | |
875fbdfe JSEC |
7696 | if (phba->cfg_poll & DISABLE_FCP_RING_INT) { |
7697 | creg_val = readl(phba->HCregaddr); | |
7698 | creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING); | |
7699 | writel(creg_val, phba->HCregaddr); | |
7700 | readl(phba->HCregaddr); /* flush */ | |
7701 | } | |
7702 | ||
2a9bf3d0 JS |
7703 | retval = lpfc_sli_issue_iocb(phba, ring_number, piocb, |
7704 | SLI_IOCB_RET_IOCB); | |
68876920 JSEC |
7705 | if (retval == IOCB_SUCCESS) { |
7706 | timeout_req = timeout * HZ; | |
68876920 | 7707 | timeleft = wait_event_timeout(done_q, |
d11e31dd | 7708 | lpfc_chk_iocb_flg(phba, piocb, LPFC_IO_WAKE), |
68876920 | 7709 | timeout_req); |
dea3101e | 7710 | |
7054a606 JS |
7711 | if (piocb->iocb_flag & LPFC_IO_WAKE) { |
7712 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
e8b62011 | 7713 | "0331 IOCB wake signaled\n"); |
7054a606 | 7714 | } else if (timeleft == 0) { |
68876920 | 7715 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, |
e8b62011 JS |
7716 | "0338 IOCB wait timeout error - no " |
7717 | "wake response Data x%x\n", timeout); | |
68876920 | 7718 | retval = IOCB_TIMEDOUT; |
7054a606 | 7719 | } else { |
68876920 | 7720 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, |
e8b62011 JS |
7721 | "0330 IOCB wake NOT set, " |
7722 | "Data x%x x%lx\n", | |
68876920 JSEC |
7723 | timeout, (timeleft / jiffies)); |
7724 | retval = IOCB_TIMEDOUT; | |
dea3101e | 7725 | } |
2a9bf3d0 JS |
7726 | } else if (retval == IOCB_BUSY) { |
7727 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
7728 | "2818 Max IOCBs %d txq cnt %d txcmplq cnt %d\n", | |
7729 | phba->iocb_cnt, pring->txq_cnt, pring->txcmplq_cnt); | |
7730 | return retval; | |
68876920 JSEC |
7731 | } else { |
7732 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
d7c255b2 | 7733 | "0332 IOCB wait issue failed, Data x%x\n", |
e8b62011 | 7734 | retval); |
68876920 | 7735 | retval = IOCB_ERROR; |
dea3101e | 7736 | } |
7737 | ||
875fbdfe JSEC |
7738 | if (phba->cfg_poll & DISABLE_FCP_RING_INT) { |
7739 | creg_val = readl(phba->HCregaddr); | |
7740 | creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING); | |
7741 | writel(creg_val, phba->HCregaddr); | |
7742 | readl(phba->HCregaddr); /* flush */ | |
7743 | } | |
7744 | ||
68876920 JSEC |
7745 | if (prspiocbq) |
7746 | piocb->context2 = NULL; | |
7747 | ||
7748 | piocb->context_un.wait_queue = NULL; | |
7749 | piocb->iocb_cmpl = NULL; | |
dea3101e | 7750 | return retval; |
7751 | } | |
68876920 | 7752 | |
e59058c4 | 7753 | /** |
3621a710 | 7754 | * lpfc_sli_issue_mbox_wait - Synchronous function to issue mailbox |
e59058c4 JS |
7755 | * @phba: Pointer to HBA context object. |
7756 | * @pmboxq: Pointer to driver mailbox object. | |
7757 | * @timeout: Timeout in number of seconds. | |
7758 | * | |
7759 | * This function issues the mailbox to firmware and waits for the | |
7760 | * mailbox command to complete. If the mailbox command is not | |
7761 | * completed within timeout seconds, it returns MBX_TIMEOUT. | |
7762 | * The function waits for the mailbox completion using an | |
7763 | * interruptible wait. If the thread is woken up due to a | |
7764 | * signal, MBX_TIMEOUT error is returned to the caller. Caller | |
7765 | * should not free the mailbox resources, if this function returns | |
7766 | * MBX_TIMEOUT. | |
7767 | * This function will sleep while waiting for mailbox completion. | |
7768 | * So, this function should not be called from any context which | |
7769 | * does not allow sleeping. Due to the same reason, this function | |
7770 | * cannot be called with interrupt disabled. | |
7771 | * This function assumes that the mailbox completion occurs while | |
7772 | * this function sleep. So, this function cannot be called from | |
7773 | * the worker thread which processes mailbox completion. | |
7774 | * This function is called in the context of HBA management | |
7775 | * applications. | |
7776 | * This function returns MBX_SUCCESS when successful. | |
7777 | * This function is called with no lock held. | |
7778 | **/ | |
dea3101e | 7779 | int |
2e0fef85 | 7780 | lpfc_sli_issue_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq, |
dea3101e | 7781 | uint32_t timeout) |
7782 | { | |
7259f0d0 | 7783 | DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q); |
dea3101e | 7784 | int retval; |
858c9f6c | 7785 | unsigned long flag; |
dea3101e | 7786 | |
7787 | /* The caller must leave context1 empty. */ | |
98c9ea5c | 7788 | if (pmboxq->context1) |
2e0fef85 | 7789 | return MBX_NOT_FINISHED; |
dea3101e | 7790 | |
495a714c | 7791 | pmboxq->mbox_flag &= ~LPFC_MBX_WAKE; |
dea3101e | 7792 | /* setup wake call as IOCB callback */ |
7793 | pmboxq->mbox_cmpl = lpfc_sli_wake_mbox_wait; | |
7794 | /* setup context field to pass wait_queue pointer to wake function */ | |
7795 | pmboxq->context1 = &done_q; | |
7796 | ||
dea3101e | 7797 | /* now issue the command */ |
7798 | retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT); | |
7799 | ||
7800 | if (retval == MBX_BUSY || retval == MBX_SUCCESS) { | |
7054a606 JS |
7801 | wait_event_interruptible_timeout(done_q, |
7802 | pmboxq->mbox_flag & LPFC_MBX_WAKE, | |
7803 | timeout * HZ); | |
7804 | ||
858c9f6c | 7805 | spin_lock_irqsave(&phba->hbalock, flag); |
dea3101e | 7806 | pmboxq->context1 = NULL; |
7054a606 JS |
7807 | /* |
7808 | * if LPFC_MBX_WAKE flag is set the mailbox is completed | |
7809 | * else do not free the resources. | |
7810 | */ | |
d7c47992 | 7811 | if (pmboxq->mbox_flag & LPFC_MBX_WAKE) { |
dea3101e | 7812 | retval = MBX_SUCCESS; |
d7c47992 JS |
7813 | lpfc_sli4_swap_str(phba, pmboxq); |
7814 | } else { | |
7054a606 | 7815 | retval = MBX_TIMEOUT; |
858c9f6c JS |
7816 | pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl; |
7817 | } | |
7818 | spin_unlock_irqrestore(&phba->hbalock, flag); | |
dea3101e | 7819 | } |
7820 | ||
dea3101e | 7821 | return retval; |
7822 | } | |
7823 | ||
e59058c4 | 7824 | /** |
3772a991 | 7825 | * lpfc_sli_mbox_sys_shutdown - shutdown mailbox command sub-system |
e59058c4 JS |
7826 | * @phba: Pointer to HBA context. |
7827 | * | |
3772a991 JS |
7828 | * This function is called to shutdown the driver's mailbox sub-system. |
7829 | * It first marks the mailbox sub-system is in a block state to prevent | |
7830 | * the asynchronous mailbox command from issued off the pending mailbox | |
7831 | * command queue. If the mailbox command sub-system shutdown is due to | |
7832 | * HBA error conditions such as EEH or ERATT, this routine shall invoke | |
7833 | * the mailbox sub-system flush routine to forcefully bring down the | |
7834 | * mailbox sub-system. Otherwise, if it is due to normal condition (such | |
7835 | * as with offline or HBA function reset), this routine will wait for the | |
7836 | * outstanding mailbox command to complete before invoking the mailbox | |
7837 | * sub-system flush routine to gracefully bring down mailbox sub-system. | |
e59058c4 | 7838 | **/ |
3772a991 JS |
7839 | void |
7840 | lpfc_sli_mbox_sys_shutdown(struct lpfc_hba *phba) | |
b4c02652 | 7841 | { |
3772a991 JS |
7842 | struct lpfc_sli *psli = &phba->sli; |
7843 | uint8_t actcmd = MBX_HEARTBEAT; | |
7844 | unsigned long timeout; | |
b4c02652 | 7845 | |
3772a991 JS |
7846 | spin_lock_irq(&phba->hbalock); |
7847 | psli->sli_flag |= LPFC_SLI_ASYNC_MBX_BLK; | |
7848 | spin_unlock_irq(&phba->hbalock); | |
b4c02652 | 7849 | |
3772a991 | 7850 | if (psli->sli_flag & LPFC_SLI_ACTIVE) { |
ed957684 | 7851 | spin_lock_irq(&phba->hbalock); |
3772a991 JS |
7852 | if (phba->sli.mbox_active) |
7853 | actcmd = phba->sli.mbox_active->u.mb.mbxCommand; | |
ed957684 | 7854 | spin_unlock_irq(&phba->hbalock); |
3772a991 JS |
7855 | /* Determine how long we might wait for the active mailbox |
7856 | * command to be gracefully completed by firmware. | |
7857 | */ | |
7858 | timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, actcmd) * | |
7859 | 1000) + jiffies; | |
7860 | while (phba->sli.mbox_active) { | |
7861 | /* Check active mailbox complete status every 2ms */ | |
7862 | msleep(2); | |
7863 | if (time_after(jiffies, timeout)) | |
7864 | /* Timeout, let the mailbox flush routine to | |
7865 | * forcefully release active mailbox command | |
7866 | */ | |
7867 | break; | |
7868 | } | |
7869 | } | |
7870 | lpfc_sli_mbox_sys_flush(phba); | |
7871 | } | |
ed957684 | 7872 | |
3772a991 JS |
7873 | /** |
7874 | * lpfc_sli_eratt_read - read sli-3 error attention events | |
7875 | * @phba: Pointer to HBA context. | |
7876 | * | |
7877 | * This function is called to read the SLI3 device error attention registers | |
7878 | * for possible error attention events. The caller must hold the hostlock | |
7879 | * with spin_lock_irq(). | |
7880 | * | |
7881 | * This fucntion returns 1 when there is Error Attention in the Host Attention | |
7882 | * Register and returns 0 otherwise. | |
7883 | **/ | |
7884 | static int | |
7885 | lpfc_sli_eratt_read(struct lpfc_hba *phba) | |
7886 | { | |
7887 | uint32_t ha_copy; | |
b4c02652 | 7888 | |
3772a991 JS |
7889 | /* Read chip Host Attention (HA) register */ |
7890 | ha_copy = readl(phba->HAregaddr); | |
7891 | if (ha_copy & HA_ERATT) { | |
7892 | /* Read host status register to retrieve error event */ | |
7893 | lpfc_sli_read_hs(phba); | |
b4c02652 | 7894 | |
3772a991 JS |
7895 | /* Check if there is a deferred error condition is active */ |
7896 | if ((HS_FFER1 & phba->work_hs) && | |
7897 | ((HS_FFER2 | HS_FFER3 | HS_FFER4 | HS_FFER5 | | |
7898 | HS_FFER6 | HS_FFER7) & phba->work_hs)) { | |
3772a991 | 7899 | phba->hba_flag |= DEFER_ERATT; |
3772a991 JS |
7900 | /* Clear all interrupt enable conditions */ |
7901 | writel(0, phba->HCregaddr); | |
7902 | readl(phba->HCregaddr); | |
7903 | } | |
7904 | ||
7905 | /* Set the driver HA work bitmap */ | |
3772a991 JS |
7906 | phba->work_ha |= HA_ERATT; |
7907 | /* Indicate polling handles this ERATT */ | |
7908 | phba->hba_flag |= HBA_ERATT_HANDLED; | |
3772a991 JS |
7909 | return 1; |
7910 | } | |
7911 | return 0; | |
b4c02652 JS |
7912 | } |
7913 | ||
da0436e9 JS |
7914 | /** |
7915 | * lpfc_sli4_eratt_read - read sli-4 error attention events | |
7916 | * @phba: Pointer to HBA context. | |
7917 | * | |
7918 | * This function is called to read the SLI4 device error attention registers | |
7919 | * for possible error attention events. The caller must hold the hostlock | |
7920 | * with spin_lock_irq(). | |
7921 | * | |
7922 | * This fucntion returns 1 when there is Error Attention in the Host Attention | |
7923 | * Register and returns 0 otherwise. | |
7924 | **/ | |
7925 | static int | |
7926 | lpfc_sli4_eratt_read(struct lpfc_hba *phba) | |
7927 | { | |
7928 | uint32_t uerr_sta_hi, uerr_sta_lo; | |
da0436e9 JS |
7929 | |
7930 | /* For now, use the SLI4 device internal unrecoverable error | |
7931 | * registers for error attention. This can be changed later. | |
7932 | */ | |
a747c9ce JS |
7933 | uerr_sta_lo = readl(phba->sli4_hba.UERRLOregaddr); |
7934 | uerr_sta_hi = readl(phba->sli4_hba.UERRHIregaddr); | |
7935 | if ((~phba->sli4_hba.ue_mask_lo & uerr_sta_lo) || | |
7936 | (~phba->sli4_hba.ue_mask_hi & uerr_sta_hi)) { | |
7937 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
7938 | "1423 HBA Unrecoverable error: " | |
7939 | "uerr_lo_reg=0x%x, uerr_hi_reg=0x%x, " | |
7940 | "ue_mask_lo_reg=0x%x, ue_mask_hi_reg=0x%x\n", | |
7941 | uerr_sta_lo, uerr_sta_hi, | |
7942 | phba->sli4_hba.ue_mask_lo, | |
7943 | phba->sli4_hba.ue_mask_hi); | |
7944 | phba->work_status[0] = uerr_sta_lo; | |
7945 | phba->work_status[1] = uerr_sta_hi; | |
7946 | /* Set the driver HA work bitmap */ | |
7947 | phba->work_ha |= HA_ERATT; | |
7948 | /* Indicate polling handles this ERATT */ | |
7949 | phba->hba_flag |= HBA_ERATT_HANDLED; | |
7950 | return 1; | |
da0436e9 JS |
7951 | } |
7952 | return 0; | |
7953 | } | |
7954 | ||
e59058c4 | 7955 | /** |
3621a710 | 7956 | * lpfc_sli_check_eratt - check error attention events |
9399627f JS |
7957 | * @phba: Pointer to HBA context. |
7958 | * | |
3772a991 | 7959 | * This function is called from timer soft interrupt context to check HBA's |
9399627f JS |
7960 | * error attention register bit for error attention events. |
7961 | * | |
7962 | * This fucntion returns 1 when there is Error Attention in the Host Attention | |
7963 | * Register and returns 0 otherwise. | |
7964 | **/ | |
7965 | int | |
7966 | lpfc_sli_check_eratt(struct lpfc_hba *phba) | |
7967 | { | |
7968 | uint32_t ha_copy; | |
7969 | ||
7970 | /* If somebody is waiting to handle an eratt, don't process it | |
7971 | * here. The brdkill function will do this. | |
7972 | */ | |
7973 | if (phba->link_flag & LS_IGNORE_ERATT) | |
7974 | return 0; | |
7975 | ||
7976 | /* Check if interrupt handler handles this ERATT */ | |
7977 | spin_lock_irq(&phba->hbalock); | |
7978 | if (phba->hba_flag & HBA_ERATT_HANDLED) { | |
7979 | /* Interrupt handler has handled ERATT */ | |
7980 | spin_unlock_irq(&phba->hbalock); | |
7981 | return 0; | |
7982 | } | |
7983 | ||
a257bf90 JS |
7984 | /* |
7985 | * If there is deferred error attention, do not check for error | |
7986 | * attention | |
7987 | */ | |
7988 | if (unlikely(phba->hba_flag & DEFER_ERATT)) { | |
7989 | spin_unlock_irq(&phba->hbalock); | |
7990 | return 0; | |
7991 | } | |
7992 | ||
3772a991 JS |
7993 | /* If PCI channel is offline, don't process it */ |
7994 | if (unlikely(pci_channel_offline(phba->pcidev))) { | |
9399627f | 7995 | spin_unlock_irq(&phba->hbalock); |
3772a991 JS |
7996 | return 0; |
7997 | } | |
7998 | ||
7999 | switch (phba->sli_rev) { | |
8000 | case LPFC_SLI_REV2: | |
8001 | case LPFC_SLI_REV3: | |
8002 | /* Read chip Host Attention (HA) register */ | |
8003 | ha_copy = lpfc_sli_eratt_read(phba); | |
8004 | break; | |
da0436e9 JS |
8005 | case LPFC_SLI_REV4: |
8006 | /* Read devcie Uncoverable Error (UERR) registers */ | |
8007 | ha_copy = lpfc_sli4_eratt_read(phba); | |
8008 | break; | |
3772a991 JS |
8009 | default: |
8010 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
8011 | "0299 Invalid SLI revision (%d)\n", | |
8012 | phba->sli_rev); | |
8013 | ha_copy = 0; | |
8014 | break; | |
9399627f JS |
8015 | } |
8016 | spin_unlock_irq(&phba->hbalock); | |
3772a991 JS |
8017 | |
8018 | return ha_copy; | |
8019 | } | |
8020 | ||
8021 | /** | |
8022 | * lpfc_intr_state_check - Check device state for interrupt handling | |
8023 | * @phba: Pointer to HBA context. | |
8024 | * | |
8025 | * This inline routine checks whether a device or its PCI slot is in a state | |
8026 | * that the interrupt should be handled. | |
8027 | * | |
8028 | * This function returns 0 if the device or the PCI slot is in a state that | |
8029 | * interrupt should be handled, otherwise -EIO. | |
8030 | */ | |
8031 | static inline int | |
8032 | lpfc_intr_state_check(struct lpfc_hba *phba) | |
8033 | { | |
8034 | /* If the pci channel is offline, ignore all the interrupts */ | |
8035 | if (unlikely(pci_channel_offline(phba->pcidev))) | |
8036 | return -EIO; | |
8037 | ||
8038 | /* Update device level interrupt statistics */ | |
8039 | phba->sli.slistat.sli_intr++; | |
8040 | ||
8041 | /* Ignore all interrupts during initialization. */ | |
8042 | if (unlikely(phba->link_state < LPFC_LINK_DOWN)) | |
8043 | return -EIO; | |
8044 | ||
9399627f JS |
8045 | return 0; |
8046 | } | |
8047 | ||
8048 | /** | |
3772a991 | 8049 | * lpfc_sli_sp_intr_handler - Slow-path interrupt handler to SLI-3 device |
e59058c4 JS |
8050 | * @irq: Interrupt number. |
8051 | * @dev_id: The device context pointer. | |
8052 | * | |
9399627f | 8053 | * This function is directly called from the PCI layer as an interrupt |
3772a991 JS |
8054 | * service routine when device with SLI-3 interface spec is enabled with |
8055 | * MSI-X multi-message interrupt mode and there are slow-path events in | |
8056 | * the HBA. However, when the device is enabled with either MSI or Pin-IRQ | |
8057 | * interrupt mode, this function is called as part of the device-level | |
8058 | * interrupt handler. When the PCI slot is in error recovery or the HBA | |
8059 | * is undergoing initialization, the interrupt handler will not process | |
8060 | * the interrupt. The link attention and ELS ring attention events are | |
8061 | * handled by the worker thread. The interrupt handler signals the worker | |
8062 | * thread and returns for these events. This function is called without | |
8063 | * any lock held. It gets the hbalock to access and update SLI data | |
9399627f JS |
8064 | * structures. |
8065 | * | |
8066 | * This function returns IRQ_HANDLED when interrupt is handled else it | |
8067 | * returns IRQ_NONE. | |
e59058c4 | 8068 | **/ |
dea3101e | 8069 | irqreturn_t |
3772a991 | 8070 | lpfc_sli_sp_intr_handler(int irq, void *dev_id) |
dea3101e | 8071 | { |
2e0fef85 | 8072 | struct lpfc_hba *phba; |
a747c9ce | 8073 | uint32_t ha_copy, hc_copy; |
dea3101e | 8074 | uint32_t work_ha_copy; |
8075 | unsigned long status; | |
5b75da2f | 8076 | unsigned long iflag; |
dea3101e | 8077 | uint32_t control; |
8078 | ||
92d7f7b0 | 8079 | MAILBOX_t *mbox, *pmbox; |
858c9f6c JS |
8080 | struct lpfc_vport *vport; |
8081 | struct lpfc_nodelist *ndlp; | |
8082 | struct lpfc_dmabuf *mp; | |
92d7f7b0 JS |
8083 | LPFC_MBOXQ_t *pmb; |
8084 | int rc; | |
8085 | ||
dea3101e | 8086 | /* |
8087 | * Get the driver's phba structure from the dev_id and | |
8088 | * assume the HBA is not interrupting. | |
8089 | */ | |
9399627f | 8090 | phba = (struct lpfc_hba *)dev_id; |
dea3101e | 8091 | |
8092 | if (unlikely(!phba)) | |
8093 | return IRQ_NONE; | |
8094 | ||
dea3101e | 8095 | /* |
9399627f JS |
8096 | * Stuff needs to be attented to when this function is invoked as an |
8097 | * individual interrupt handler in MSI-X multi-message interrupt mode | |
dea3101e | 8098 | */ |
9399627f | 8099 | if (phba->intr_type == MSIX) { |
3772a991 JS |
8100 | /* Check device state for handling interrupt */ |
8101 | if (lpfc_intr_state_check(phba)) | |
9399627f JS |
8102 | return IRQ_NONE; |
8103 | /* Need to read HA REG for slow-path events */ | |
5b75da2f | 8104 | spin_lock_irqsave(&phba->hbalock, iflag); |
34b02dcd | 8105 | ha_copy = readl(phba->HAregaddr); |
9399627f JS |
8106 | /* If somebody is waiting to handle an eratt don't process it |
8107 | * here. The brdkill function will do this. | |
8108 | */ | |
8109 | if (phba->link_flag & LS_IGNORE_ERATT) | |
8110 | ha_copy &= ~HA_ERATT; | |
8111 | /* Check the need for handling ERATT in interrupt handler */ | |
8112 | if (ha_copy & HA_ERATT) { | |
8113 | if (phba->hba_flag & HBA_ERATT_HANDLED) | |
8114 | /* ERATT polling has handled ERATT */ | |
8115 | ha_copy &= ~HA_ERATT; | |
8116 | else | |
8117 | /* Indicate interrupt handler handles ERATT */ | |
8118 | phba->hba_flag |= HBA_ERATT_HANDLED; | |
8119 | } | |
a257bf90 JS |
8120 | |
8121 | /* | |
8122 | * If there is deferred error attention, do not check for any | |
8123 | * interrupt. | |
8124 | */ | |
8125 | if (unlikely(phba->hba_flag & DEFER_ERATT)) { | |
3772a991 | 8126 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
a257bf90 JS |
8127 | return IRQ_NONE; |
8128 | } | |
8129 | ||
9399627f | 8130 | /* Clear up only attention source related to slow-path */ |
a747c9ce JS |
8131 | hc_copy = readl(phba->HCregaddr); |
8132 | writel(hc_copy & ~(HC_MBINT_ENA | HC_R2INT_ENA | | |
8133 | HC_LAINT_ENA | HC_ERINT_ENA), | |
8134 | phba->HCregaddr); | |
9399627f JS |
8135 | writel((ha_copy & (HA_MBATT | HA_R2_CLR_MSK)), |
8136 | phba->HAregaddr); | |
a747c9ce | 8137 | writel(hc_copy, phba->HCregaddr); |
9399627f | 8138 | readl(phba->HAregaddr); /* flush */ |
5b75da2f | 8139 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
9399627f JS |
8140 | } else |
8141 | ha_copy = phba->ha_copy; | |
dea3101e | 8142 | |
dea3101e | 8143 | work_ha_copy = ha_copy & phba->work_ha_mask; |
8144 | ||
9399627f | 8145 | if (work_ha_copy) { |
dea3101e | 8146 | if (work_ha_copy & HA_LATT) { |
8147 | if (phba->sli.sli_flag & LPFC_PROCESS_LA) { | |
8148 | /* | |
8149 | * Turn off Link Attention interrupts | |
8150 | * until CLEAR_LA done | |
8151 | */ | |
5b75da2f | 8152 | spin_lock_irqsave(&phba->hbalock, iflag); |
dea3101e | 8153 | phba->sli.sli_flag &= ~LPFC_PROCESS_LA; |
8154 | control = readl(phba->HCregaddr); | |
8155 | control &= ~HC_LAINT_ENA; | |
8156 | writel(control, phba->HCregaddr); | |
8157 | readl(phba->HCregaddr); /* flush */ | |
5b75da2f | 8158 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
dea3101e | 8159 | } |
8160 | else | |
8161 | work_ha_copy &= ~HA_LATT; | |
8162 | } | |
8163 | ||
9399627f | 8164 | if (work_ha_copy & ~(HA_ERATT | HA_MBATT | HA_LATT)) { |
858c9f6c JS |
8165 | /* |
8166 | * Turn off Slow Rings interrupts, LPFC_ELS_RING is | |
8167 | * the only slow ring. | |
8168 | */ | |
8169 | status = (work_ha_copy & | |
8170 | (HA_RXMASK << (4*LPFC_ELS_RING))); | |
8171 | status >>= (4*LPFC_ELS_RING); | |
8172 | if (status & HA_RXMASK) { | |
5b75da2f | 8173 | spin_lock_irqsave(&phba->hbalock, iflag); |
858c9f6c | 8174 | control = readl(phba->HCregaddr); |
a58cbd52 JS |
8175 | |
8176 | lpfc_debugfs_slow_ring_trc(phba, | |
8177 | "ISR slow ring: ctl:x%x stat:x%x isrcnt:x%x", | |
8178 | control, status, | |
8179 | (uint32_t)phba->sli.slistat.sli_intr); | |
8180 | ||
858c9f6c | 8181 | if (control & (HC_R0INT_ENA << LPFC_ELS_RING)) { |
a58cbd52 JS |
8182 | lpfc_debugfs_slow_ring_trc(phba, |
8183 | "ISR Disable ring:" | |
8184 | "pwork:x%x hawork:x%x wait:x%x", | |
8185 | phba->work_ha, work_ha_copy, | |
8186 | (uint32_t)((unsigned long) | |
5e9d9b82 | 8187 | &phba->work_waitq)); |
a58cbd52 | 8188 | |
858c9f6c JS |
8189 | control &= |
8190 | ~(HC_R0INT_ENA << LPFC_ELS_RING); | |
dea3101e | 8191 | writel(control, phba->HCregaddr); |
8192 | readl(phba->HCregaddr); /* flush */ | |
dea3101e | 8193 | } |
a58cbd52 JS |
8194 | else { |
8195 | lpfc_debugfs_slow_ring_trc(phba, | |
8196 | "ISR slow ring: pwork:" | |
8197 | "x%x hawork:x%x wait:x%x", | |
8198 | phba->work_ha, work_ha_copy, | |
8199 | (uint32_t)((unsigned long) | |
5e9d9b82 | 8200 | &phba->work_waitq)); |
a58cbd52 | 8201 | } |
5b75da2f | 8202 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
dea3101e | 8203 | } |
8204 | } | |
5b75da2f | 8205 | spin_lock_irqsave(&phba->hbalock, iflag); |
a257bf90 | 8206 | if (work_ha_copy & HA_ERATT) { |
9399627f | 8207 | lpfc_sli_read_hs(phba); |
a257bf90 JS |
8208 | /* |
8209 | * Check if there is a deferred error condition | |
8210 | * is active | |
8211 | */ | |
8212 | if ((HS_FFER1 & phba->work_hs) && | |
8213 | ((HS_FFER2 | HS_FFER3 | HS_FFER4 | HS_FFER5 | | |
8214 | HS_FFER6 | HS_FFER7) & phba->work_hs)) { | |
8215 | phba->hba_flag |= DEFER_ERATT; | |
8216 | /* Clear all interrupt enable conditions */ | |
8217 | writel(0, phba->HCregaddr); | |
8218 | readl(phba->HCregaddr); | |
8219 | } | |
8220 | } | |
8221 | ||
9399627f | 8222 | if ((work_ha_copy & HA_MBATT) && (phba->sli.mbox_active)) { |
92d7f7b0 | 8223 | pmb = phba->sli.mbox_active; |
04c68496 | 8224 | pmbox = &pmb->u.mb; |
34b02dcd | 8225 | mbox = phba->mbox; |
858c9f6c | 8226 | vport = pmb->vport; |
92d7f7b0 JS |
8227 | |
8228 | /* First check out the status word */ | |
8229 | lpfc_sli_pcimem_bcopy(mbox, pmbox, sizeof(uint32_t)); | |
8230 | if (pmbox->mbxOwner != OWN_HOST) { | |
5b75da2f | 8231 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
92d7f7b0 JS |
8232 | /* |
8233 | * Stray Mailbox Interrupt, mbxCommand <cmd> | |
8234 | * mbxStatus <status> | |
8235 | */ | |
09372820 | 8236 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | |
92d7f7b0 | 8237 | LOG_SLI, |
e8b62011 | 8238 | "(%d):0304 Stray Mailbox " |
92d7f7b0 JS |
8239 | "Interrupt mbxCommand x%x " |
8240 | "mbxStatus x%x\n", | |
e8b62011 | 8241 | (vport ? vport->vpi : 0), |
92d7f7b0 JS |
8242 | pmbox->mbxCommand, |
8243 | pmbox->mbxStatus); | |
09372820 JS |
8244 | /* clear mailbox attention bit */ |
8245 | work_ha_copy &= ~HA_MBATT; | |
8246 | } else { | |
97eab634 | 8247 | phba->sli.mbox_active = NULL; |
5b75da2f | 8248 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
09372820 JS |
8249 | phba->last_completion_time = jiffies; |
8250 | del_timer(&phba->sli.mbox_tmo); | |
09372820 JS |
8251 | if (pmb->mbox_cmpl) { |
8252 | lpfc_sli_pcimem_bcopy(mbox, pmbox, | |
8253 | MAILBOX_CMD_SIZE); | |
7a470277 JS |
8254 | if (pmb->out_ext_byte_len && |
8255 | pmb->context2) | |
8256 | lpfc_sli_pcimem_bcopy( | |
8257 | phba->mbox_ext, | |
8258 | pmb->context2, | |
8259 | pmb->out_ext_byte_len); | |
09372820 JS |
8260 | } |
8261 | if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) { | |
8262 | pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG; | |
8263 | ||
8264 | lpfc_debugfs_disc_trc(vport, | |
8265 | LPFC_DISC_TRC_MBOX_VPORT, | |
8266 | "MBOX dflt rpi: : " | |
8267 | "status:x%x rpi:x%x", | |
8268 | (uint32_t)pmbox->mbxStatus, | |
8269 | pmbox->un.varWords[0], 0); | |
8270 | ||
8271 | if (!pmbox->mbxStatus) { | |
8272 | mp = (struct lpfc_dmabuf *) | |
8273 | (pmb->context1); | |
8274 | ndlp = (struct lpfc_nodelist *) | |
8275 | pmb->context2; | |
8276 | ||
8277 | /* Reg_LOGIN of dflt RPI was | |
8278 | * successful. new lets get | |
8279 | * rid of the RPI using the | |
8280 | * same mbox buffer. | |
8281 | */ | |
8282 | lpfc_unreg_login(phba, | |
8283 | vport->vpi, | |
8284 | pmbox->un.varWords[0], | |
8285 | pmb); | |
8286 | pmb->mbox_cmpl = | |
8287 | lpfc_mbx_cmpl_dflt_rpi; | |
8288 | pmb->context1 = mp; | |
8289 | pmb->context2 = ndlp; | |
8290 | pmb->vport = vport; | |
58da1ffb JS |
8291 | rc = lpfc_sli_issue_mbox(phba, |
8292 | pmb, | |
8293 | MBX_NOWAIT); | |
8294 | if (rc != MBX_BUSY) | |
8295 | lpfc_printf_log(phba, | |
8296 | KERN_ERR, | |
8297 | LOG_MBOX | LOG_SLI, | |
d7c255b2 | 8298 | "0350 rc should have" |
6a9c52cf | 8299 | "been MBX_BUSY\n"); |
3772a991 JS |
8300 | if (rc != MBX_NOT_FINISHED) |
8301 | goto send_current_mbox; | |
09372820 | 8302 | } |
858c9f6c | 8303 | } |
5b75da2f JS |
8304 | spin_lock_irqsave( |
8305 | &phba->pport->work_port_lock, | |
8306 | iflag); | |
09372820 JS |
8307 | phba->pport->work_port_events &= |
8308 | ~WORKER_MBOX_TMO; | |
5b75da2f JS |
8309 | spin_unlock_irqrestore( |
8310 | &phba->pport->work_port_lock, | |
8311 | iflag); | |
09372820 | 8312 | lpfc_mbox_cmpl_put(phba, pmb); |
858c9f6c | 8313 | } |
97eab634 | 8314 | } else |
5b75da2f | 8315 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
9399627f | 8316 | |
92d7f7b0 JS |
8317 | if ((work_ha_copy & HA_MBATT) && |
8318 | (phba->sli.mbox_active == NULL)) { | |
858c9f6c | 8319 | send_current_mbox: |
92d7f7b0 | 8320 | /* Process next mailbox command if there is one */ |
58da1ffb JS |
8321 | do { |
8322 | rc = lpfc_sli_issue_mbox(phba, NULL, | |
8323 | MBX_NOWAIT); | |
8324 | } while (rc == MBX_NOT_FINISHED); | |
8325 | if (rc != MBX_SUCCESS) | |
8326 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | | |
8327 | LOG_SLI, "0349 rc should be " | |
6a9c52cf | 8328 | "MBX_SUCCESS\n"); |
92d7f7b0 JS |
8329 | } |
8330 | ||
5b75da2f | 8331 | spin_lock_irqsave(&phba->hbalock, iflag); |
dea3101e | 8332 | phba->work_ha |= work_ha_copy; |
5b75da2f | 8333 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
5e9d9b82 | 8334 | lpfc_worker_wake_up(phba); |
dea3101e | 8335 | } |
9399627f | 8336 | return IRQ_HANDLED; |
dea3101e | 8337 | |
3772a991 | 8338 | } /* lpfc_sli_sp_intr_handler */ |
9399627f JS |
8339 | |
8340 | /** | |
3772a991 | 8341 | * lpfc_sli_fp_intr_handler - Fast-path interrupt handler to SLI-3 device. |
9399627f JS |
8342 | * @irq: Interrupt number. |
8343 | * @dev_id: The device context pointer. | |
8344 | * | |
8345 | * This function is directly called from the PCI layer as an interrupt | |
3772a991 JS |
8346 | * service routine when device with SLI-3 interface spec is enabled with |
8347 | * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB | |
8348 | * ring event in the HBA. However, when the device is enabled with either | |
8349 | * MSI or Pin-IRQ interrupt mode, this function is called as part of the | |
8350 | * device-level interrupt handler. When the PCI slot is in error recovery | |
8351 | * or the HBA is undergoing initialization, the interrupt handler will not | |
8352 | * process the interrupt. The SCSI FCP fast-path ring event are handled in | |
8353 | * the intrrupt context. This function is called without any lock held. | |
8354 | * It gets the hbalock to access and update SLI data structures. | |
9399627f JS |
8355 | * |
8356 | * This function returns IRQ_HANDLED when interrupt is handled else it | |
8357 | * returns IRQ_NONE. | |
8358 | **/ | |
8359 | irqreturn_t | |
3772a991 | 8360 | lpfc_sli_fp_intr_handler(int irq, void *dev_id) |
9399627f JS |
8361 | { |
8362 | struct lpfc_hba *phba; | |
8363 | uint32_t ha_copy; | |
8364 | unsigned long status; | |
5b75da2f | 8365 | unsigned long iflag; |
9399627f JS |
8366 | |
8367 | /* Get the driver's phba structure from the dev_id and | |
8368 | * assume the HBA is not interrupting. | |
8369 | */ | |
8370 | phba = (struct lpfc_hba *) dev_id; | |
8371 | ||
8372 | if (unlikely(!phba)) | |
8373 | return IRQ_NONE; | |
8374 | ||
8375 | /* | |
8376 | * Stuff needs to be attented to when this function is invoked as an | |
8377 | * individual interrupt handler in MSI-X multi-message interrupt mode | |
8378 | */ | |
8379 | if (phba->intr_type == MSIX) { | |
3772a991 JS |
8380 | /* Check device state for handling interrupt */ |
8381 | if (lpfc_intr_state_check(phba)) | |
9399627f JS |
8382 | return IRQ_NONE; |
8383 | /* Need to read HA REG for FCP ring and other ring events */ | |
8384 | ha_copy = readl(phba->HAregaddr); | |
8385 | /* Clear up only attention source related to fast-path */ | |
5b75da2f | 8386 | spin_lock_irqsave(&phba->hbalock, iflag); |
a257bf90 JS |
8387 | /* |
8388 | * If there is deferred error attention, do not check for | |
8389 | * any interrupt. | |
8390 | */ | |
8391 | if (unlikely(phba->hba_flag & DEFER_ERATT)) { | |
3772a991 | 8392 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
a257bf90 JS |
8393 | return IRQ_NONE; |
8394 | } | |
9399627f JS |
8395 | writel((ha_copy & (HA_R0_CLR_MSK | HA_R1_CLR_MSK)), |
8396 | phba->HAregaddr); | |
8397 | readl(phba->HAregaddr); /* flush */ | |
5b75da2f | 8398 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
9399627f JS |
8399 | } else |
8400 | ha_copy = phba->ha_copy; | |
dea3101e | 8401 | |
8402 | /* | |
9399627f | 8403 | * Process all events on FCP ring. Take the optimized path for FCP IO. |
dea3101e | 8404 | */ |
9399627f JS |
8405 | ha_copy &= ~(phba->work_ha_mask); |
8406 | ||
8407 | status = (ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING))); | |
dea3101e | 8408 | status >>= (4*LPFC_FCP_RING); |
858c9f6c | 8409 | if (status & HA_RXMASK) |
dea3101e | 8410 | lpfc_sli_handle_fast_ring_event(phba, |
8411 | &phba->sli.ring[LPFC_FCP_RING], | |
8412 | status); | |
a4bc3379 JS |
8413 | |
8414 | if (phba->cfg_multi_ring_support == 2) { | |
8415 | /* | |
9399627f JS |
8416 | * Process all events on extra ring. Take the optimized path |
8417 | * for extra ring IO. | |
a4bc3379 | 8418 | */ |
9399627f | 8419 | status = (ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING))); |
a4bc3379 | 8420 | status >>= (4*LPFC_EXTRA_RING); |
858c9f6c | 8421 | if (status & HA_RXMASK) { |
a4bc3379 JS |
8422 | lpfc_sli_handle_fast_ring_event(phba, |
8423 | &phba->sli.ring[LPFC_EXTRA_RING], | |
8424 | status); | |
8425 | } | |
8426 | } | |
dea3101e | 8427 | return IRQ_HANDLED; |
3772a991 | 8428 | } /* lpfc_sli_fp_intr_handler */ |
9399627f JS |
8429 | |
8430 | /** | |
3772a991 | 8431 | * lpfc_sli_intr_handler - Device-level interrupt handler to SLI-3 device |
9399627f JS |
8432 | * @irq: Interrupt number. |
8433 | * @dev_id: The device context pointer. | |
8434 | * | |
3772a991 JS |
8435 | * This function is the HBA device-level interrupt handler to device with |
8436 | * SLI-3 interface spec, called from the PCI layer when either MSI or | |
8437 | * Pin-IRQ interrupt mode is enabled and there is an event in the HBA which | |
8438 | * requires driver attention. This function invokes the slow-path interrupt | |
8439 | * attention handling function and fast-path interrupt attention handling | |
8440 | * function in turn to process the relevant HBA attention events. This | |
8441 | * function is called without any lock held. It gets the hbalock to access | |
8442 | * and update SLI data structures. | |
9399627f JS |
8443 | * |
8444 | * This function returns IRQ_HANDLED when interrupt is handled, else it | |
8445 | * returns IRQ_NONE. | |
8446 | **/ | |
8447 | irqreturn_t | |
3772a991 | 8448 | lpfc_sli_intr_handler(int irq, void *dev_id) |
9399627f JS |
8449 | { |
8450 | struct lpfc_hba *phba; | |
8451 | irqreturn_t sp_irq_rc, fp_irq_rc; | |
8452 | unsigned long status1, status2; | |
a747c9ce | 8453 | uint32_t hc_copy; |
9399627f JS |
8454 | |
8455 | /* | |
8456 | * Get the driver's phba structure from the dev_id and | |
8457 | * assume the HBA is not interrupting. | |
8458 | */ | |
8459 | phba = (struct lpfc_hba *) dev_id; | |
8460 | ||
8461 | if (unlikely(!phba)) | |
8462 | return IRQ_NONE; | |
8463 | ||
3772a991 JS |
8464 | /* Check device state for handling interrupt */ |
8465 | if (lpfc_intr_state_check(phba)) | |
9399627f JS |
8466 | return IRQ_NONE; |
8467 | ||
8468 | spin_lock(&phba->hbalock); | |
8469 | phba->ha_copy = readl(phba->HAregaddr); | |
8470 | if (unlikely(!phba->ha_copy)) { | |
8471 | spin_unlock(&phba->hbalock); | |
8472 | return IRQ_NONE; | |
8473 | } else if (phba->ha_copy & HA_ERATT) { | |
8474 | if (phba->hba_flag & HBA_ERATT_HANDLED) | |
8475 | /* ERATT polling has handled ERATT */ | |
8476 | phba->ha_copy &= ~HA_ERATT; | |
8477 | else | |
8478 | /* Indicate interrupt handler handles ERATT */ | |
8479 | phba->hba_flag |= HBA_ERATT_HANDLED; | |
8480 | } | |
8481 | ||
a257bf90 JS |
8482 | /* |
8483 | * If there is deferred error attention, do not check for any interrupt. | |
8484 | */ | |
8485 | if (unlikely(phba->hba_flag & DEFER_ERATT)) { | |
ec21b3b0 | 8486 | spin_unlock(&phba->hbalock); |
a257bf90 JS |
8487 | return IRQ_NONE; |
8488 | } | |
8489 | ||
9399627f | 8490 | /* Clear attention sources except link and error attentions */ |
a747c9ce JS |
8491 | hc_copy = readl(phba->HCregaddr); |
8492 | writel(hc_copy & ~(HC_MBINT_ENA | HC_R0INT_ENA | HC_R1INT_ENA | |
8493 | | HC_R2INT_ENA | HC_LAINT_ENA | HC_ERINT_ENA), | |
8494 | phba->HCregaddr); | |
9399627f | 8495 | writel((phba->ha_copy & ~(HA_LATT | HA_ERATT)), phba->HAregaddr); |
a747c9ce | 8496 | writel(hc_copy, phba->HCregaddr); |
9399627f JS |
8497 | readl(phba->HAregaddr); /* flush */ |
8498 | spin_unlock(&phba->hbalock); | |
8499 | ||
8500 | /* | |
8501 | * Invokes slow-path host attention interrupt handling as appropriate. | |
8502 | */ | |
8503 | ||
8504 | /* status of events with mailbox and link attention */ | |
8505 | status1 = phba->ha_copy & (HA_MBATT | HA_LATT | HA_ERATT); | |
8506 | ||
8507 | /* status of events with ELS ring */ | |
8508 | status2 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING))); | |
8509 | status2 >>= (4*LPFC_ELS_RING); | |
8510 | ||
8511 | if (status1 || (status2 & HA_RXMASK)) | |
3772a991 | 8512 | sp_irq_rc = lpfc_sli_sp_intr_handler(irq, dev_id); |
9399627f JS |
8513 | else |
8514 | sp_irq_rc = IRQ_NONE; | |
8515 | ||
8516 | /* | |
8517 | * Invoke fast-path host attention interrupt handling as appropriate. | |
8518 | */ | |
8519 | ||
8520 | /* status of events with FCP ring */ | |
8521 | status1 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING))); | |
8522 | status1 >>= (4*LPFC_FCP_RING); | |
8523 | ||
8524 | /* status of events with extra ring */ | |
8525 | if (phba->cfg_multi_ring_support == 2) { | |
8526 | status2 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING))); | |
8527 | status2 >>= (4*LPFC_EXTRA_RING); | |
8528 | } else | |
8529 | status2 = 0; | |
8530 | ||
8531 | if ((status1 & HA_RXMASK) || (status2 & HA_RXMASK)) | |
3772a991 | 8532 | fp_irq_rc = lpfc_sli_fp_intr_handler(irq, dev_id); |
9399627f JS |
8533 | else |
8534 | fp_irq_rc = IRQ_NONE; | |
dea3101e | 8535 | |
9399627f JS |
8536 | /* Return device-level interrupt handling status */ |
8537 | return (sp_irq_rc == IRQ_HANDLED) ? sp_irq_rc : fp_irq_rc; | |
3772a991 | 8538 | } /* lpfc_sli_intr_handler */ |
4f774513 JS |
8539 | |
8540 | /** | |
8541 | * lpfc_sli4_fcp_xri_abort_event_proc - Process fcp xri abort event | |
8542 | * @phba: pointer to lpfc hba data structure. | |
8543 | * | |
8544 | * This routine is invoked by the worker thread to process all the pending | |
8545 | * SLI4 FCP abort XRI events. | |
8546 | **/ | |
8547 | void lpfc_sli4_fcp_xri_abort_event_proc(struct lpfc_hba *phba) | |
8548 | { | |
8549 | struct lpfc_cq_event *cq_event; | |
8550 | ||
8551 | /* First, declare the fcp xri abort event has been handled */ | |
8552 | spin_lock_irq(&phba->hbalock); | |
8553 | phba->hba_flag &= ~FCP_XRI_ABORT_EVENT; | |
8554 | spin_unlock_irq(&phba->hbalock); | |
8555 | /* Now, handle all the fcp xri abort events */ | |
8556 | while (!list_empty(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue)) { | |
8557 | /* Get the first event from the head of the event queue */ | |
8558 | spin_lock_irq(&phba->hbalock); | |
8559 | list_remove_head(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue, | |
8560 | cq_event, struct lpfc_cq_event, list); | |
8561 | spin_unlock_irq(&phba->hbalock); | |
8562 | /* Notify aborted XRI for FCP work queue */ | |
8563 | lpfc_sli4_fcp_xri_aborted(phba, &cq_event->cqe.wcqe_axri); | |
8564 | /* Free the event processed back to the free pool */ | |
8565 | lpfc_sli4_cq_event_release(phba, cq_event); | |
8566 | } | |
8567 | } | |
8568 | ||
8569 | /** | |
8570 | * lpfc_sli4_els_xri_abort_event_proc - Process els xri abort event | |
8571 | * @phba: pointer to lpfc hba data structure. | |
8572 | * | |
8573 | * This routine is invoked by the worker thread to process all the pending | |
8574 | * SLI4 els abort xri events. | |
8575 | **/ | |
8576 | void lpfc_sli4_els_xri_abort_event_proc(struct lpfc_hba *phba) | |
8577 | { | |
8578 | struct lpfc_cq_event *cq_event; | |
8579 | ||
8580 | /* First, declare the els xri abort event has been handled */ | |
8581 | spin_lock_irq(&phba->hbalock); | |
8582 | phba->hba_flag &= ~ELS_XRI_ABORT_EVENT; | |
8583 | spin_unlock_irq(&phba->hbalock); | |
8584 | /* Now, handle all the els xri abort events */ | |
8585 | while (!list_empty(&phba->sli4_hba.sp_els_xri_aborted_work_queue)) { | |
8586 | /* Get the first event from the head of the event queue */ | |
8587 | spin_lock_irq(&phba->hbalock); | |
8588 | list_remove_head(&phba->sli4_hba.sp_els_xri_aborted_work_queue, | |
8589 | cq_event, struct lpfc_cq_event, list); | |
8590 | spin_unlock_irq(&phba->hbalock); | |
8591 | /* Notify aborted XRI for ELS work queue */ | |
8592 | lpfc_sli4_els_xri_aborted(phba, &cq_event->cqe.wcqe_axri); | |
8593 | /* Free the event processed back to the free pool */ | |
8594 | lpfc_sli4_cq_event_release(phba, cq_event); | |
8595 | } | |
8596 | } | |
8597 | ||
341af102 JS |
8598 | /** |
8599 | * lpfc_sli4_iocb_param_transfer - Transfer pIocbOut and cmpl status to pIocbIn | |
8600 | * @phba: pointer to lpfc hba data structure | |
8601 | * @pIocbIn: pointer to the rspiocbq | |
8602 | * @pIocbOut: pointer to the cmdiocbq | |
8603 | * @wcqe: pointer to the complete wcqe | |
8604 | * | |
8605 | * This routine transfers the fields of a command iocbq to a response iocbq | |
8606 | * by copying all the IOCB fields from command iocbq and transferring the | |
8607 | * completion status information from the complete wcqe. | |
8608 | **/ | |
4f774513 | 8609 | static void |
341af102 JS |
8610 | lpfc_sli4_iocb_param_transfer(struct lpfc_hba *phba, |
8611 | struct lpfc_iocbq *pIocbIn, | |
4f774513 JS |
8612 | struct lpfc_iocbq *pIocbOut, |
8613 | struct lpfc_wcqe_complete *wcqe) | |
8614 | { | |
341af102 | 8615 | unsigned long iflags; |
4f774513 JS |
8616 | size_t offset = offsetof(struct lpfc_iocbq, iocb); |
8617 | ||
8618 | memcpy((char *)pIocbIn + offset, (char *)pIocbOut + offset, | |
8619 | sizeof(struct lpfc_iocbq) - offset); | |
4f774513 JS |
8620 | /* Map WCQE parameters into irspiocb parameters */ |
8621 | pIocbIn->iocb.ulpStatus = bf_get(lpfc_wcqe_c_status, wcqe); | |
8622 | if (pIocbOut->iocb_flag & LPFC_IO_FCP) | |
8623 | if (pIocbIn->iocb.ulpStatus == IOSTAT_FCP_RSP_ERROR) | |
8624 | pIocbIn->iocb.un.fcpi.fcpi_parm = | |
8625 | pIocbOut->iocb.un.fcpi.fcpi_parm - | |
8626 | wcqe->total_data_placed; | |
8627 | else | |
8628 | pIocbIn->iocb.un.ulpWord[4] = wcqe->parameter; | |
695a814e | 8629 | else { |
4f774513 | 8630 | pIocbIn->iocb.un.ulpWord[4] = wcqe->parameter; |
695a814e JS |
8631 | pIocbIn->iocb.un.genreq64.bdl.bdeSize = wcqe->total_data_placed; |
8632 | } | |
341af102 JS |
8633 | |
8634 | /* Pick up HBA exchange busy condition */ | |
8635 | if (bf_get(lpfc_wcqe_c_xb, wcqe)) { | |
8636 | spin_lock_irqsave(&phba->hbalock, iflags); | |
8637 | pIocbIn->iocb_flag |= LPFC_EXCHANGE_BUSY; | |
8638 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
8639 | } | |
4f774513 JS |
8640 | } |
8641 | ||
45ed1190 JS |
8642 | /** |
8643 | * lpfc_sli4_els_wcqe_to_rspiocbq - Get response iocbq from els wcqe | |
8644 | * @phba: Pointer to HBA context object. | |
8645 | * @wcqe: Pointer to work-queue completion queue entry. | |
8646 | * | |
8647 | * This routine handles an ELS work-queue completion event and construct | |
8648 | * a pseudo response ELS IODBQ from the SLI4 ELS WCQE for the common | |
8649 | * discovery engine to handle. | |
8650 | * | |
8651 | * Return: Pointer to the receive IOCBQ, NULL otherwise. | |
8652 | **/ | |
8653 | static struct lpfc_iocbq * | |
8654 | lpfc_sli4_els_wcqe_to_rspiocbq(struct lpfc_hba *phba, | |
8655 | struct lpfc_iocbq *irspiocbq) | |
8656 | { | |
8657 | struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING]; | |
8658 | struct lpfc_iocbq *cmdiocbq; | |
8659 | struct lpfc_wcqe_complete *wcqe; | |
8660 | unsigned long iflags; | |
8661 | ||
8662 | wcqe = &irspiocbq->cq_event.cqe.wcqe_cmpl; | |
8663 | spin_lock_irqsave(&phba->hbalock, iflags); | |
8664 | pring->stats.iocb_event++; | |
8665 | /* Look up the ELS command IOCB and create pseudo response IOCB */ | |
8666 | cmdiocbq = lpfc_sli_iocbq_lookup_by_tag(phba, pring, | |
8667 | bf_get(lpfc_wcqe_c_request_tag, wcqe)); | |
8668 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
8669 | ||
8670 | if (unlikely(!cmdiocbq)) { | |
8671 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, | |
8672 | "0386 ELS complete with no corresponding " | |
8673 | "cmdiocb: iotag (%d)\n", | |
8674 | bf_get(lpfc_wcqe_c_request_tag, wcqe)); | |
8675 | lpfc_sli_release_iocbq(phba, irspiocbq); | |
8676 | return NULL; | |
8677 | } | |
8678 | ||
8679 | /* Fake the irspiocbq and copy necessary response information */ | |
341af102 | 8680 | lpfc_sli4_iocb_param_transfer(phba, irspiocbq, cmdiocbq, wcqe); |
45ed1190 JS |
8681 | |
8682 | return irspiocbq; | |
8683 | } | |
8684 | ||
04c68496 JS |
8685 | /** |
8686 | * lpfc_sli4_sp_handle_async_event - Handle an asynchroous event | |
8687 | * @phba: Pointer to HBA context object. | |
8688 | * @cqe: Pointer to mailbox completion queue entry. | |
8689 | * | |
8690 | * This routine process a mailbox completion queue entry with asynchrous | |
8691 | * event. | |
8692 | * | |
8693 | * Return: true if work posted to worker thread, otherwise false. | |
8694 | **/ | |
8695 | static bool | |
8696 | lpfc_sli4_sp_handle_async_event(struct lpfc_hba *phba, struct lpfc_mcqe *mcqe) | |
8697 | { | |
8698 | struct lpfc_cq_event *cq_event; | |
8699 | unsigned long iflags; | |
8700 | ||
8701 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
8702 | "0392 Async Event: word0:x%x, word1:x%x, " | |
8703 | "word2:x%x, word3:x%x\n", mcqe->word0, | |
8704 | mcqe->mcqe_tag0, mcqe->mcqe_tag1, mcqe->trailer); | |
8705 | ||
8706 | /* Allocate a new internal CQ_EVENT entry */ | |
8707 | cq_event = lpfc_sli4_cq_event_alloc(phba); | |
8708 | if (!cq_event) { | |
8709 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
8710 | "0394 Failed to allocate CQ_EVENT entry\n"); | |
8711 | return false; | |
8712 | } | |
8713 | ||
8714 | /* Move the CQE into an asynchronous event entry */ | |
8715 | memcpy(&cq_event->cqe, mcqe, sizeof(struct lpfc_mcqe)); | |
8716 | spin_lock_irqsave(&phba->hbalock, iflags); | |
8717 | list_add_tail(&cq_event->list, &phba->sli4_hba.sp_asynce_work_queue); | |
8718 | /* Set the async event flag */ | |
8719 | phba->hba_flag |= ASYNC_EVENT; | |
8720 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
8721 | ||
8722 | return true; | |
8723 | } | |
8724 | ||
8725 | /** | |
8726 | * lpfc_sli4_sp_handle_mbox_event - Handle a mailbox completion event | |
8727 | * @phba: Pointer to HBA context object. | |
8728 | * @cqe: Pointer to mailbox completion queue entry. | |
8729 | * | |
8730 | * This routine process a mailbox completion queue entry with mailbox | |
8731 | * completion event. | |
8732 | * | |
8733 | * Return: true if work posted to worker thread, otherwise false. | |
8734 | **/ | |
8735 | static bool | |
8736 | lpfc_sli4_sp_handle_mbox_event(struct lpfc_hba *phba, struct lpfc_mcqe *mcqe) | |
8737 | { | |
8738 | uint32_t mcqe_status; | |
8739 | MAILBOX_t *mbox, *pmbox; | |
8740 | struct lpfc_mqe *mqe; | |
8741 | struct lpfc_vport *vport; | |
8742 | struct lpfc_nodelist *ndlp; | |
8743 | struct lpfc_dmabuf *mp; | |
8744 | unsigned long iflags; | |
8745 | LPFC_MBOXQ_t *pmb; | |
8746 | bool workposted = false; | |
8747 | int rc; | |
8748 | ||
8749 | /* If not a mailbox complete MCQE, out by checking mailbox consume */ | |
8750 | if (!bf_get(lpfc_trailer_completed, mcqe)) | |
8751 | goto out_no_mqe_complete; | |
8752 | ||
8753 | /* Get the reference to the active mbox command */ | |
8754 | spin_lock_irqsave(&phba->hbalock, iflags); | |
8755 | pmb = phba->sli.mbox_active; | |
8756 | if (unlikely(!pmb)) { | |
8757 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, | |
8758 | "1832 No pending MBOX command to handle\n"); | |
8759 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
8760 | goto out_no_mqe_complete; | |
8761 | } | |
8762 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
8763 | mqe = &pmb->u.mqe; | |
8764 | pmbox = (MAILBOX_t *)&pmb->u.mqe; | |
8765 | mbox = phba->mbox; | |
8766 | vport = pmb->vport; | |
8767 | ||
8768 | /* Reset heartbeat timer */ | |
8769 | phba->last_completion_time = jiffies; | |
8770 | del_timer(&phba->sli.mbox_tmo); | |
8771 | ||
8772 | /* Move mbox data to caller's mailbox region, do endian swapping */ | |
8773 | if (pmb->mbox_cmpl && mbox) | |
8774 | lpfc_sli_pcimem_bcopy(mbox, mqe, sizeof(struct lpfc_mqe)); | |
8775 | /* Set the mailbox status with SLI4 range 0x4000 */ | |
8776 | mcqe_status = bf_get(lpfc_mcqe_status, mcqe); | |
8777 | if (mcqe_status != MB_CQE_STATUS_SUCCESS) | |
8778 | bf_set(lpfc_mqe_status, mqe, | |
8779 | (LPFC_MBX_ERROR_RANGE | mcqe_status)); | |
8780 | ||
8781 | if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) { | |
8782 | pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG; | |
8783 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_MBOX_VPORT, | |
8784 | "MBOX dflt rpi: status:x%x rpi:x%x", | |
8785 | mcqe_status, | |
8786 | pmbox->un.varWords[0], 0); | |
8787 | if (mcqe_status == MB_CQE_STATUS_SUCCESS) { | |
8788 | mp = (struct lpfc_dmabuf *)(pmb->context1); | |
8789 | ndlp = (struct lpfc_nodelist *)pmb->context2; | |
8790 | /* Reg_LOGIN of dflt RPI was successful. Now lets get | |
8791 | * RID of the PPI using the same mbox buffer. | |
8792 | */ | |
8793 | lpfc_unreg_login(phba, vport->vpi, | |
8794 | pmbox->un.varWords[0], pmb); | |
8795 | pmb->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi; | |
8796 | pmb->context1 = mp; | |
8797 | pmb->context2 = ndlp; | |
8798 | pmb->vport = vport; | |
8799 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); | |
8800 | if (rc != MBX_BUSY) | |
8801 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | | |
8802 | LOG_SLI, "0385 rc should " | |
8803 | "have been MBX_BUSY\n"); | |
8804 | if (rc != MBX_NOT_FINISHED) | |
8805 | goto send_current_mbox; | |
8806 | } | |
8807 | } | |
8808 | spin_lock_irqsave(&phba->pport->work_port_lock, iflags); | |
8809 | phba->pport->work_port_events &= ~WORKER_MBOX_TMO; | |
8810 | spin_unlock_irqrestore(&phba->pport->work_port_lock, iflags); | |
8811 | ||
8812 | /* There is mailbox completion work to do */ | |
8813 | spin_lock_irqsave(&phba->hbalock, iflags); | |
8814 | __lpfc_mbox_cmpl_put(phba, pmb); | |
8815 | phba->work_ha |= HA_MBATT; | |
8816 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
8817 | workposted = true; | |
8818 | ||
8819 | send_current_mbox: | |
8820 | spin_lock_irqsave(&phba->hbalock, iflags); | |
8821 | /* Release the mailbox command posting token */ | |
8822 | phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; | |
8823 | /* Setting active mailbox pointer need to be in sync to flag clear */ | |
8824 | phba->sli.mbox_active = NULL; | |
8825 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
8826 | /* Wake up worker thread to post the next pending mailbox command */ | |
8827 | lpfc_worker_wake_up(phba); | |
8828 | out_no_mqe_complete: | |
8829 | if (bf_get(lpfc_trailer_consumed, mcqe)) | |
8830 | lpfc_sli4_mq_release(phba->sli4_hba.mbx_wq); | |
8831 | return workposted; | |
8832 | } | |
8833 | ||
8834 | /** | |
8835 | * lpfc_sli4_sp_handle_mcqe - Process a mailbox completion queue entry | |
8836 | * @phba: Pointer to HBA context object. | |
8837 | * @cqe: Pointer to mailbox completion queue entry. | |
8838 | * | |
8839 | * This routine process a mailbox completion queue entry, it invokes the | |
8840 | * proper mailbox complete handling or asynchrous event handling routine | |
8841 | * according to the MCQE's async bit. | |
8842 | * | |
8843 | * Return: true if work posted to worker thread, otherwise false. | |
8844 | **/ | |
8845 | static bool | |
8846 | lpfc_sli4_sp_handle_mcqe(struct lpfc_hba *phba, struct lpfc_cqe *cqe) | |
8847 | { | |
8848 | struct lpfc_mcqe mcqe; | |
8849 | bool workposted; | |
8850 | ||
8851 | /* Copy the mailbox MCQE and convert endian order as needed */ | |
8852 | lpfc_sli_pcimem_bcopy(cqe, &mcqe, sizeof(struct lpfc_mcqe)); | |
8853 | ||
8854 | /* Invoke the proper event handling routine */ | |
8855 | if (!bf_get(lpfc_trailer_async, &mcqe)) | |
8856 | workposted = lpfc_sli4_sp_handle_mbox_event(phba, &mcqe); | |
8857 | else | |
8858 | workposted = lpfc_sli4_sp_handle_async_event(phba, &mcqe); | |
8859 | return workposted; | |
8860 | } | |
8861 | ||
4f774513 JS |
8862 | /** |
8863 | * lpfc_sli4_sp_handle_els_wcqe - Handle els work-queue completion event | |
8864 | * @phba: Pointer to HBA context object. | |
8865 | * @wcqe: Pointer to work-queue completion queue entry. | |
8866 | * | |
8867 | * This routine handles an ELS work-queue completion event. | |
8868 | * | |
8869 | * Return: true if work posted to worker thread, otherwise false. | |
8870 | **/ | |
8871 | static bool | |
8872 | lpfc_sli4_sp_handle_els_wcqe(struct lpfc_hba *phba, | |
8873 | struct lpfc_wcqe_complete *wcqe) | |
8874 | { | |
4f774513 JS |
8875 | struct lpfc_iocbq *irspiocbq; |
8876 | unsigned long iflags; | |
2a9bf3d0 | 8877 | struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_FCP_RING]; |
4f774513 | 8878 | |
45ed1190 | 8879 | /* Get an irspiocbq for later ELS response processing use */ |
4f774513 JS |
8880 | irspiocbq = lpfc_sli_get_iocbq(phba); |
8881 | if (!irspiocbq) { | |
8882 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
2a9bf3d0 JS |
8883 | "0387 NO IOCBQ data: txq_cnt=%d iocb_cnt=%d " |
8884 | "fcp_txcmplq_cnt=%d, els_txcmplq_cnt=%d\n", | |
8885 | pring->txq_cnt, phba->iocb_cnt, | |
8886 | phba->sli.ring[LPFC_FCP_RING].txcmplq_cnt, | |
8887 | phba->sli.ring[LPFC_ELS_RING].txcmplq_cnt); | |
45ed1190 | 8888 | return false; |
4f774513 | 8889 | } |
4f774513 | 8890 | |
45ed1190 JS |
8891 | /* Save off the slow-path queue event for work thread to process */ |
8892 | memcpy(&irspiocbq->cq_event.cqe.wcqe_cmpl, wcqe, sizeof(*wcqe)); | |
4f774513 | 8893 | spin_lock_irqsave(&phba->hbalock, iflags); |
4d9ab994 | 8894 | list_add_tail(&irspiocbq->cq_event.list, |
45ed1190 JS |
8895 | &phba->sli4_hba.sp_queue_event); |
8896 | phba->hba_flag |= HBA_SP_QUEUE_EVT; | |
4f774513 | 8897 | spin_unlock_irqrestore(&phba->hbalock, iflags); |
4f774513 | 8898 | |
45ed1190 | 8899 | return true; |
4f774513 JS |
8900 | } |
8901 | ||
8902 | /** | |
8903 | * lpfc_sli4_sp_handle_rel_wcqe - Handle slow-path WQ entry consumed event | |
8904 | * @phba: Pointer to HBA context object. | |
8905 | * @wcqe: Pointer to work-queue completion queue entry. | |
8906 | * | |
8907 | * This routine handles slow-path WQ entry comsumed event by invoking the | |
8908 | * proper WQ release routine to the slow-path WQ. | |
8909 | **/ | |
8910 | static void | |
8911 | lpfc_sli4_sp_handle_rel_wcqe(struct lpfc_hba *phba, | |
8912 | struct lpfc_wcqe_release *wcqe) | |
8913 | { | |
8914 | /* Check for the slow-path ELS work queue */ | |
8915 | if (bf_get(lpfc_wcqe_r_wq_id, wcqe) == phba->sli4_hba.els_wq->queue_id) | |
8916 | lpfc_sli4_wq_release(phba->sli4_hba.els_wq, | |
8917 | bf_get(lpfc_wcqe_r_wqe_index, wcqe)); | |
8918 | else | |
8919 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, | |
8920 | "2579 Slow-path wqe consume event carries " | |
8921 | "miss-matched qid: wcqe-qid=x%x, sp-qid=x%x\n", | |
8922 | bf_get(lpfc_wcqe_r_wqe_index, wcqe), | |
8923 | phba->sli4_hba.els_wq->queue_id); | |
8924 | } | |
8925 | ||
8926 | /** | |
8927 | * lpfc_sli4_sp_handle_abort_xri_wcqe - Handle a xri abort event | |
8928 | * @phba: Pointer to HBA context object. | |
8929 | * @cq: Pointer to a WQ completion queue. | |
8930 | * @wcqe: Pointer to work-queue completion queue entry. | |
8931 | * | |
8932 | * This routine handles an XRI abort event. | |
8933 | * | |
8934 | * Return: true if work posted to worker thread, otherwise false. | |
8935 | **/ | |
8936 | static bool | |
8937 | lpfc_sli4_sp_handle_abort_xri_wcqe(struct lpfc_hba *phba, | |
8938 | struct lpfc_queue *cq, | |
8939 | struct sli4_wcqe_xri_aborted *wcqe) | |
8940 | { | |
8941 | bool workposted = false; | |
8942 | struct lpfc_cq_event *cq_event; | |
8943 | unsigned long iflags; | |
8944 | ||
8945 | /* Allocate a new internal CQ_EVENT entry */ | |
8946 | cq_event = lpfc_sli4_cq_event_alloc(phba); | |
8947 | if (!cq_event) { | |
8948 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
8949 | "0602 Failed to allocate CQ_EVENT entry\n"); | |
8950 | return false; | |
8951 | } | |
8952 | ||
8953 | /* Move the CQE into the proper xri abort event list */ | |
8954 | memcpy(&cq_event->cqe, wcqe, sizeof(struct sli4_wcqe_xri_aborted)); | |
8955 | switch (cq->subtype) { | |
8956 | case LPFC_FCP: | |
8957 | spin_lock_irqsave(&phba->hbalock, iflags); | |
8958 | list_add_tail(&cq_event->list, | |
8959 | &phba->sli4_hba.sp_fcp_xri_aborted_work_queue); | |
8960 | /* Set the fcp xri abort event flag */ | |
8961 | phba->hba_flag |= FCP_XRI_ABORT_EVENT; | |
8962 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
8963 | workposted = true; | |
8964 | break; | |
8965 | case LPFC_ELS: | |
8966 | spin_lock_irqsave(&phba->hbalock, iflags); | |
8967 | list_add_tail(&cq_event->list, | |
8968 | &phba->sli4_hba.sp_els_xri_aborted_work_queue); | |
8969 | /* Set the els xri abort event flag */ | |
8970 | phba->hba_flag |= ELS_XRI_ABORT_EVENT; | |
8971 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
8972 | workposted = true; | |
8973 | break; | |
8974 | default: | |
8975 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
8976 | "0603 Invalid work queue CQE subtype (x%x)\n", | |
8977 | cq->subtype); | |
8978 | workposted = false; | |
8979 | break; | |
8980 | } | |
8981 | return workposted; | |
8982 | } | |
8983 | ||
4f774513 JS |
8984 | /** |
8985 | * lpfc_sli4_sp_handle_rcqe - Process a receive-queue completion queue entry | |
8986 | * @phba: Pointer to HBA context object. | |
8987 | * @rcqe: Pointer to receive-queue completion queue entry. | |
8988 | * | |
8989 | * This routine process a receive-queue completion queue entry. | |
8990 | * | |
8991 | * Return: true if work posted to worker thread, otherwise false. | |
8992 | **/ | |
8993 | static bool | |
4d9ab994 | 8994 | lpfc_sli4_sp_handle_rcqe(struct lpfc_hba *phba, struct lpfc_rcqe *rcqe) |
4f774513 | 8995 | { |
4f774513 JS |
8996 | bool workposted = false; |
8997 | struct lpfc_queue *hrq = phba->sli4_hba.hdr_rq; | |
8998 | struct lpfc_queue *drq = phba->sli4_hba.dat_rq; | |
8999 | struct hbq_dmabuf *dma_buf; | |
9000 | uint32_t status; | |
9001 | unsigned long iflags; | |
9002 | ||
4d9ab994 | 9003 | if (bf_get(lpfc_rcqe_rq_id, rcqe) != hrq->queue_id) |
4f774513 JS |
9004 | goto out; |
9005 | ||
4d9ab994 | 9006 | status = bf_get(lpfc_rcqe_status, rcqe); |
4f774513 JS |
9007 | switch (status) { |
9008 | case FC_STATUS_RQ_BUF_LEN_EXCEEDED: | |
9009 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
9010 | "2537 Receive Frame Truncated!!\n"); | |
9011 | case FC_STATUS_RQ_SUCCESS: | |
5ffc266e | 9012 | lpfc_sli4_rq_release(hrq, drq); |
4f774513 JS |
9013 | spin_lock_irqsave(&phba->hbalock, iflags); |
9014 | dma_buf = lpfc_sli_hbqbuf_get(&phba->hbqs[0].hbq_buffer_list); | |
9015 | if (!dma_buf) { | |
9016 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
9017 | goto out; | |
9018 | } | |
4d9ab994 | 9019 | memcpy(&dma_buf->cq_event.cqe.rcqe_cmpl, rcqe, sizeof(*rcqe)); |
4f774513 | 9020 | /* save off the frame for the word thread to process */ |
4d9ab994 | 9021 | list_add_tail(&dma_buf->cq_event.list, |
45ed1190 | 9022 | &phba->sli4_hba.sp_queue_event); |
4f774513 | 9023 | /* Frame received */ |
45ed1190 | 9024 | phba->hba_flag |= HBA_SP_QUEUE_EVT; |
4f774513 JS |
9025 | spin_unlock_irqrestore(&phba->hbalock, iflags); |
9026 | workposted = true; | |
9027 | break; | |
9028 | case FC_STATUS_INSUFF_BUF_NEED_BUF: | |
9029 | case FC_STATUS_INSUFF_BUF_FRM_DISC: | |
9030 | /* Post more buffers if possible */ | |
9031 | spin_lock_irqsave(&phba->hbalock, iflags); | |
9032 | phba->hba_flag |= HBA_POST_RECEIVE_BUFFER; | |
9033 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
9034 | workposted = true; | |
9035 | break; | |
9036 | } | |
9037 | out: | |
9038 | return workposted; | |
4f774513 JS |
9039 | } |
9040 | ||
4d9ab994 JS |
9041 | /** |
9042 | * lpfc_sli4_sp_handle_cqe - Process a slow path completion queue entry | |
9043 | * @phba: Pointer to HBA context object. | |
9044 | * @cq: Pointer to the completion queue. | |
9045 | * @wcqe: Pointer to a completion queue entry. | |
9046 | * | |
9047 | * This routine process a slow-path work-queue or recieve queue completion queue | |
9048 | * entry. | |
9049 | * | |
9050 | * Return: true if work posted to worker thread, otherwise false. | |
9051 | **/ | |
9052 | static bool | |
9053 | lpfc_sli4_sp_handle_cqe(struct lpfc_hba *phba, struct lpfc_queue *cq, | |
9054 | struct lpfc_cqe *cqe) | |
9055 | { | |
45ed1190 | 9056 | struct lpfc_cqe cqevt; |
4d9ab994 JS |
9057 | bool workposted = false; |
9058 | ||
9059 | /* Copy the work queue CQE and convert endian order if needed */ | |
45ed1190 | 9060 | lpfc_sli_pcimem_bcopy(cqe, &cqevt, sizeof(struct lpfc_cqe)); |
4d9ab994 JS |
9061 | |
9062 | /* Check and process for different type of WCQE and dispatch */ | |
45ed1190 | 9063 | switch (bf_get(lpfc_cqe_code, &cqevt)) { |
4d9ab994 | 9064 | case CQE_CODE_COMPL_WQE: |
45ed1190 | 9065 | /* Process the WQ/RQ complete event */ |
bc73905a | 9066 | phba->last_completion_time = jiffies; |
4d9ab994 | 9067 | workposted = lpfc_sli4_sp_handle_els_wcqe(phba, |
45ed1190 | 9068 | (struct lpfc_wcqe_complete *)&cqevt); |
4d9ab994 JS |
9069 | break; |
9070 | case CQE_CODE_RELEASE_WQE: | |
9071 | /* Process the WQ release event */ | |
9072 | lpfc_sli4_sp_handle_rel_wcqe(phba, | |
45ed1190 | 9073 | (struct lpfc_wcqe_release *)&cqevt); |
4d9ab994 JS |
9074 | break; |
9075 | case CQE_CODE_XRI_ABORTED: | |
9076 | /* Process the WQ XRI abort event */ | |
bc73905a | 9077 | phba->last_completion_time = jiffies; |
4d9ab994 | 9078 | workposted = lpfc_sli4_sp_handle_abort_xri_wcqe(phba, cq, |
45ed1190 | 9079 | (struct sli4_wcqe_xri_aborted *)&cqevt); |
4d9ab994 JS |
9080 | break; |
9081 | case CQE_CODE_RECEIVE: | |
9082 | /* Process the RQ event */ | |
bc73905a | 9083 | phba->last_completion_time = jiffies; |
4d9ab994 | 9084 | workposted = lpfc_sli4_sp_handle_rcqe(phba, |
45ed1190 | 9085 | (struct lpfc_rcqe *)&cqevt); |
4d9ab994 JS |
9086 | break; |
9087 | default: | |
9088 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
9089 | "0388 Not a valid WCQE code: x%x\n", | |
45ed1190 | 9090 | bf_get(lpfc_cqe_code, &cqevt)); |
4d9ab994 JS |
9091 | break; |
9092 | } | |
9093 | return workposted; | |
9094 | } | |
9095 | ||
4f774513 JS |
9096 | /** |
9097 | * lpfc_sli4_sp_handle_eqe - Process a slow-path event queue entry | |
9098 | * @phba: Pointer to HBA context object. | |
9099 | * @eqe: Pointer to fast-path event queue entry. | |
9100 | * | |
9101 | * This routine process a event queue entry from the slow-path event queue. | |
9102 | * It will check the MajorCode and MinorCode to determine this is for a | |
9103 | * completion event on a completion queue, if not, an error shall be logged | |
9104 | * and just return. Otherwise, it will get to the corresponding completion | |
9105 | * queue and process all the entries on that completion queue, rearm the | |
9106 | * completion queue, and then return. | |
9107 | * | |
9108 | **/ | |
9109 | static void | |
9110 | lpfc_sli4_sp_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe) | |
9111 | { | |
9112 | struct lpfc_queue *cq = NULL, *childq, *speq; | |
9113 | struct lpfc_cqe *cqe; | |
9114 | bool workposted = false; | |
9115 | int ecount = 0; | |
9116 | uint16_t cqid; | |
9117 | ||
cb5172ea | 9118 | if (bf_get_le32(lpfc_eqe_major_code, eqe) != 0) { |
4f774513 JS |
9119 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, |
9120 | "0359 Not a valid slow-path completion " | |
9121 | "event: majorcode=x%x, minorcode=x%x\n", | |
cb5172ea JS |
9122 | bf_get_le32(lpfc_eqe_major_code, eqe), |
9123 | bf_get_le32(lpfc_eqe_minor_code, eqe)); | |
4f774513 JS |
9124 | return; |
9125 | } | |
9126 | ||
9127 | /* Get the reference to the corresponding CQ */ | |
cb5172ea | 9128 | cqid = bf_get_le32(lpfc_eqe_resource_id, eqe); |
4f774513 JS |
9129 | |
9130 | /* Search for completion queue pointer matching this cqid */ | |
9131 | speq = phba->sli4_hba.sp_eq; | |
9132 | list_for_each_entry(childq, &speq->child_list, list) { | |
9133 | if (childq->queue_id == cqid) { | |
9134 | cq = childq; | |
9135 | break; | |
9136 | } | |
9137 | } | |
9138 | if (unlikely(!cq)) { | |
75baf696 JS |
9139 | if (phba->sli.sli_flag & LPFC_SLI_ACTIVE) |
9140 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
9141 | "0365 Slow-path CQ identifier " | |
9142 | "(%d) does not exist\n", cqid); | |
4f774513 JS |
9143 | return; |
9144 | } | |
9145 | ||
9146 | /* Process all the entries to the CQ */ | |
9147 | switch (cq->type) { | |
9148 | case LPFC_MCQ: | |
9149 | while ((cqe = lpfc_sli4_cq_get(cq))) { | |
9150 | workposted |= lpfc_sli4_sp_handle_mcqe(phba, cqe); | |
9151 | if (!(++ecount % LPFC_GET_QE_REL_INT)) | |
9152 | lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM); | |
9153 | } | |
9154 | break; | |
9155 | case LPFC_WCQ: | |
9156 | while ((cqe = lpfc_sli4_cq_get(cq))) { | |
4d9ab994 | 9157 | workposted |= lpfc_sli4_sp_handle_cqe(phba, cq, cqe); |
4f774513 JS |
9158 | if (!(++ecount % LPFC_GET_QE_REL_INT)) |
9159 | lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM); | |
9160 | } | |
9161 | break; | |
9162 | default: | |
9163 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
9164 | "0370 Invalid completion queue type (%d)\n", | |
9165 | cq->type); | |
9166 | return; | |
9167 | } | |
9168 | ||
9169 | /* Catch the no cq entry condition, log an error */ | |
9170 | if (unlikely(ecount == 0)) | |
9171 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
9172 | "0371 No entry from the CQ: identifier " | |
9173 | "(x%x), type (%d)\n", cq->queue_id, cq->type); | |
9174 | ||
9175 | /* In any case, flash and re-arm the RCQ */ | |
9176 | lpfc_sli4_cq_release(cq, LPFC_QUEUE_REARM); | |
9177 | ||
9178 | /* wake up worker thread if there are works to be done */ | |
9179 | if (workposted) | |
9180 | lpfc_worker_wake_up(phba); | |
9181 | } | |
9182 | ||
9183 | /** | |
9184 | * lpfc_sli4_fp_handle_fcp_wcqe - Process fast-path work queue completion entry | |
9185 | * @eqe: Pointer to fast-path completion queue entry. | |
9186 | * | |
9187 | * This routine process a fast-path work queue completion entry from fast-path | |
9188 | * event queue for FCP command response completion. | |
9189 | **/ | |
9190 | static void | |
9191 | lpfc_sli4_fp_handle_fcp_wcqe(struct lpfc_hba *phba, | |
9192 | struct lpfc_wcqe_complete *wcqe) | |
9193 | { | |
9194 | struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_FCP_RING]; | |
9195 | struct lpfc_iocbq *cmdiocbq; | |
9196 | struct lpfc_iocbq irspiocbq; | |
9197 | unsigned long iflags; | |
9198 | ||
9199 | spin_lock_irqsave(&phba->hbalock, iflags); | |
9200 | pring->stats.iocb_event++; | |
9201 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
9202 | ||
9203 | /* Check for response status */ | |
9204 | if (unlikely(bf_get(lpfc_wcqe_c_status, wcqe))) { | |
9205 | /* If resource errors reported from HBA, reduce queue | |
9206 | * depth of the SCSI device. | |
9207 | */ | |
9208 | if ((bf_get(lpfc_wcqe_c_status, wcqe) == | |
9209 | IOSTAT_LOCAL_REJECT) && | |
9210 | (wcqe->parameter == IOERR_NO_RESOURCES)) { | |
9211 | phba->lpfc_rampdown_queue_depth(phba); | |
9212 | } | |
9213 | /* Log the error status */ | |
9214 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, | |
9215 | "0373 FCP complete error: status=x%x, " | |
9216 | "hw_status=x%x, total_data_specified=%d, " | |
9217 | "parameter=x%x, word3=x%x\n", | |
9218 | bf_get(lpfc_wcqe_c_status, wcqe), | |
9219 | bf_get(lpfc_wcqe_c_hw_status, wcqe), | |
9220 | wcqe->total_data_placed, wcqe->parameter, | |
9221 | wcqe->word3); | |
9222 | } | |
9223 | ||
9224 | /* Look up the FCP command IOCB and create pseudo response IOCB */ | |
9225 | spin_lock_irqsave(&phba->hbalock, iflags); | |
9226 | cmdiocbq = lpfc_sli_iocbq_lookup_by_tag(phba, pring, | |
9227 | bf_get(lpfc_wcqe_c_request_tag, wcqe)); | |
9228 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
9229 | if (unlikely(!cmdiocbq)) { | |
9230 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, | |
9231 | "0374 FCP complete with no corresponding " | |
9232 | "cmdiocb: iotag (%d)\n", | |
9233 | bf_get(lpfc_wcqe_c_request_tag, wcqe)); | |
9234 | return; | |
9235 | } | |
9236 | if (unlikely(!cmdiocbq->iocb_cmpl)) { | |
9237 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, | |
9238 | "0375 FCP cmdiocb not callback function " | |
9239 | "iotag: (%d)\n", | |
9240 | bf_get(lpfc_wcqe_c_request_tag, wcqe)); | |
9241 | return; | |
9242 | } | |
9243 | ||
9244 | /* Fake the irspiocb and copy necessary response information */ | |
341af102 | 9245 | lpfc_sli4_iocb_param_transfer(phba, &irspiocbq, cmdiocbq, wcqe); |
4f774513 | 9246 | |
0f65ff68 JS |
9247 | if (cmdiocbq->iocb_flag & LPFC_DRIVER_ABORTED) { |
9248 | spin_lock_irqsave(&phba->hbalock, iflags); | |
9249 | cmdiocbq->iocb_flag &= ~LPFC_DRIVER_ABORTED; | |
9250 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
9251 | } | |
9252 | ||
4f774513 JS |
9253 | /* Pass the cmd_iocb and the rsp state to the upper layer */ |
9254 | (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, &irspiocbq); | |
9255 | } | |
9256 | ||
9257 | /** | |
9258 | * lpfc_sli4_fp_handle_rel_wcqe - Handle fast-path WQ entry consumed event | |
9259 | * @phba: Pointer to HBA context object. | |
9260 | * @cq: Pointer to completion queue. | |
9261 | * @wcqe: Pointer to work-queue completion queue entry. | |
9262 | * | |
9263 | * This routine handles an fast-path WQ entry comsumed event by invoking the | |
9264 | * proper WQ release routine to the slow-path WQ. | |
9265 | **/ | |
9266 | static void | |
9267 | lpfc_sli4_fp_handle_rel_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq, | |
9268 | struct lpfc_wcqe_release *wcqe) | |
9269 | { | |
9270 | struct lpfc_queue *childwq; | |
9271 | bool wqid_matched = false; | |
9272 | uint16_t fcp_wqid; | |
9273 | ||
9274 | /* Check for fast-path FCP work queue release */ | |
9275 | fcp_wqid = bf_get(lpfc_wcqe_r_wq_id, wcqe); | |
9276 | list_for_each_entry(childwq, &cq->child_list, list) { | |
9277 | if (childwq->queue_id == fcp_wqid) { | |
9278 | lpfc_sli4_wq_release(childwq, | |
9279 | bf_get(lpfc_wcqe_r_wqe_index, wcqe)); | |
9280 | wqid_matched = true; | |
9281 | break; | |
9282 | } | |
9283 | } | |
9284 | /* Report warning log message if no match found */ | |
9285 | if (wqid_matched != true) | |
9286 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, | |
9287 | "2580 Fast-path wqe consume event carries " | |
9288 | "miss-matched qid: wcqe-qid=x%x\n", fcp_wqid); | |
9289 | } | |
9290 | ||
9291 | /** | |
9292 | * lpfc_sli4_fp_handle_wcqe - Process fast-path work queue completion entry | |
9293 | * @cq: Pointer to the completion queue. | |
9294 | * @eqe: Pointer to fast-path completion queue entry. | |
9295 | * | |
9296 | * This routine process a fast-path work queue completion entry from fast-path | |
9297 | * event queue for FCP command response completion. | |
9298 | **/ | |
9299 | static int | |
9300 | lpfc_sli4_fp_handle_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq, | |
9301 | struct lpfc_cqe *cqe) | |
9302 | { | |
9303 | struct lpfc_wcqe_release wcqe; | |
9304 | bool workposted = false; | |
9305 | ||
9306 | /* Copy the work queue CQE and convert endian order if needed */ | |
9307 | lpfc_sli_pcimem_bcopy(cqe, &wcqe, sizeof(struct lpfc_cqe)); | |
9308 | ||
9309 | /* Check and process for different type of WCQE and dispatch */ | |
9310 | switch (bf_get(lpfc_wcqe_c_code, &wcqe)) { | |
9311 | case CQE_CODE_COMPL_WQE: | |
9312 | /* Process the WQ complete event */ | |
98fc5dd9 | 9313 | phba->last_completion_time = jiffies; |
4f774513 JS |
9314 | lpfc_sli4_fp_handle_fcp_wcqe(phba, |
9315 | (struct lpfc_wcqe_complete *)&wcqe); | |
9316 | break; | |
9317 | case CQE_CODE_RELEASE_WQE: | |
9318 | /* Process the WQ release event */ | |
9319 | lpfc_sli4_fp_handle_rel_wcqe(phba, cq, | |
9320 | (struct lpfc_wcqe_release *)&wcqe); | |
9321 | break; | |
9322 | case CQE_CODE_XRI_ABORTED: | |
9323 | /* Process the WQ XRI abort event */ | |
bc73905a | 9324 | phba->last_completion_time = jiffies; |
4f774513 JS |
9325 | workposted = lpfc_sli4_sp_handle_abort_xri_wcqe(phba, cq, |
9326 | (struct sli4_wcqe_xri_aborted *)&wcqe); | |
9327 | break; | |
9328 | default: | |
9329 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
9330 | "0144 Not a valid WCQE code: x%x\n", | |
9331 | bf_get(lpfc_wcqe_c_code, &wcqe)); | |
9332 | break; | |
9333 | } | |
9334 | return workposted; | |
9335 | } | |
9336 | ||
9337 | /** | |
9338 | * lpfc_sli4_fp_handle_eqe - Process a fast-path event queue entry | |
9339 | * @phba: Pointer to HBA context object. | |
9340 | * @eqe: Pointer to fast-path event queue entry. | |
9341 | * | |
9342 | * This routine process a event queue entry from the fast-path event queue. | |
9343 | * It will check the MajorCode and MinorCode to determine this is for a | |
9344 | * completion event on a completion queue, if not, an error shall be logged | |
9345 | * and just return. Otherwise, it will get to the corresponding completion | |
9346 | * queue and process all the entries on the completion queue, rearm the | |
9347 | * completion queue, and then return. | |
9348 | **/ | |
9349 | static void | |
9350 | lpfc_sli4_fp_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe, | |
9351 | uint32_t fcp_cqidx) | |
9352 | { | |
9353 | struct lpfc_queue *cq; | |
9354 | struct lpfc_cqe *cqe; | |
9355 | bool workposted = false; | |
9356 | uint16_t cqid; | |
9357 | int ecount = 0; | |
9358 | ||
cb5172ea | 9359 | if (unlikely(bf_get_le32(lpfc_eqe_major_code, eqe) != 0)) { |
4f774513 JS |
9360 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, |
9361 | "0366 Not a valid fast-path completion " | |
9362 | "event: majorcode=x%x, minorcode=x%x\n", | |
cb5172ea JS |
9363 | bf_get_le32(lpfc_eqe_major_code, eqe), |
9364 | bf_get_le32(lpfc_eqe_minor_code, eqe)); | |
4f774513 JS |
9365 | return; |
9366 | } | |
9367 | ||
9368 | cq = phba->sli4_hba.fcp_cq[fcp_cqidx]; | |
9369 | if (unlikely(!cq)) { | |
75baf696 JS |
9370 | if (phba->sli.sli_flag & LPFC_SLI_ACTIVE) |
9371 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
9372 | "0367 Fast-path completion queue " | |
9373 | "does not exist\n"); | |
4f774513 JS |
9374 | return; |
9375 | } | |
9376 | ||
9377 | /* Get the reference to the corresponding CQ */ | |
cb5172ea | 9378 | cqid = bf_get_le32(lpfc_eqe_resource_id, eqe); |
4f774513 JS |
9379 | if (unlikely(cqid != cq->queue_id)) { |
9380 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
9381 | "0368 Miss-matched fast-path completion " | |
9382 | "queue identifier: eqcqid=%d, fcpcqid=%d\n", | |
9383 | cqid, cq->queue_id); | |
9384 | return; | |
9385 | } | |
9386 | ||
9387 | /* Process all the entries to the CQ */ | |
9388 | while ((cqe = lpfc_sli4_cq_get(cq))) { | |
9389 | workposted |= lpfc_sli4_fp_handle_wcqe(phba, cq, cqe); | |
9390 | if (!(++ecount % LPFC_GET_QE_REL_INT)) | |
9391 | lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM); | |
9392 | } | |
9393 | ||
9394 | /* Catch the no cq entry condition */ | |
9395 | if (unlikely(ecount == 0)) | |
9396 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
9397 | "0369 No entry from fast-path completion " | |
9398 | "queue fcpcqid=%d\n", cq->queue_id); | |
9399 | ||
9400 | /* In any case, flash and re-arm the CQ */ | |
9401 | lpfc_sli4_cq_release(cq, LPFC_QUEUE_REARM); | |
9402 | ||
9403 | /* wake up worker thread if there are works to be done */ | |
9404 | if (workposted) | |
9405 | lpfc_worker_wake_up(phba); | |
9406 | } | |
9407 | ||
9408 | static void | |
9409 | lpfc_sli4_eq_flush(struct lpfc_hba *phba, struct lpfc_queue *eq) | |
9410 | { | |
9411 | struct lpfc_eqe *eqe; | |
9412 | ||
9413 | /* walk all the EQ entries and drop on the floor */ | |
9414 | while ((eqe = lpfc_sli4_eq_get(eq))) | |
9415 | ; | |
9416 | ||
9417 | /* Clear and re-arm the EQ */ | |
9418 | lpfc_sli4_eq_release(eq, LPFC_QUEUE_REARM); | |
9419 | } | |
9420 | ||
9421 | /** | |
9422 | * lpfc_sli4_sp_intr_handler - Slow-path interrupt handler to SLI-4 device | |
9423 | * @irq: Interrupt number. | |
9424 | * @dev_id: The device context pointer. | |
9425 | * | |
9426 | * This function is directly called from the PCI layer as an interrupt | |
9427 | * service routine when device with SLI-4 interface spec is enabled with | |
9428 | * MSI-X multi-message interrupt mode and there are slow-path events in | |
9429 | * the HBA. However, when the device is enabled with either MSI or Pin-IRQ | |
9430 | * interrupt mode, this function is called as part of the device-level | |
9431 | * interrupt handler. When the PCI slot is in error recovery or the HBA is | |
9432 | * undergoing initialization, the interrupt handler will not process the | |
9433 | * interrupt. The link attention and ELS ring attention events are handled | |
9434 | * by the worker thread. The interrupt handler signals the worker thread | |
9435 | * and returns for these events. This function is called without any lock | |
9436 | * held. It gets the hbalock to access and update SLI data structures. | |
9437 | * | |
9438 | * This function returns IRQ_HANDLED when interrupt is handled else it | |
9439 | * returns IRQ_NONE. | |
9440 | **/ | |
9441 | irqreturn_t | |
9442 | lpfc_sli4_sp_intr_handler(int irq, void *dev_id) | |
9443 | { | |
9444 | struct lpfc_hba *phba; | |
9445 | struct lpfc_queue *speq; | |
9446 | struct lpfc_eqe *eqe; | |
9447 | unsigned long iflag; | |
9448 | int ecount = 0; | |
9449 | ||
9450 | /* | |
9451 | * Get the driver's phba structure from the dev_id | |
9452 | */ | |
9453 | phba = (struct lpfc_hba *)dev_id; | |
9454 | ||
9455 | if (unlikely(!phba)) | |
9456 | return IRQ_NONE; | |
9457 | ||
9458 | /* Get to the EQ struct associated with this vector */ | |
9459 | speq = phba->sli4_hba.sp_eq; | |
9460 | ||
9461 | /* Check device state for handling interrupt */ | |
9462 | if (unlikely(lpfc_intr_state_check(phba))) { | |
9463 | /* Check again for link_state with lock held */ | |
9464 | spin_lock_irqsave(&phba->hbalock, iflag); | |
9465 | if (phba->link_state < LPFC_LINK_DOWN) | |
9466 | /* Flush, clear interrupt, and rearm the EQ */ | |
9467 | lpfc_sli4_eq_flush(phba, speq); | |
9468 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
9469 | return IRQ_NONE; | |
9470 | } | |
9471 | ||
9472 | /* | |
9473 | * Process all the event on FCP slow-path EQ | |
9474 | */ | |
9475 | while ((eqe = lpfc_sli4_eq_get(speq))) { | |
9476 | lpfc_sli4_sp_handle_eqe(phba, eqe); | |
9477 | if (!(++ecount % LPFC_GET_QE_REL_INT)) | |
9478 | lpfc_sli4_eq_release(speq, LPFC_QUEUE_NOARM); | |
9479 | } | |
9480 | ||
9481 | /* Always clear and re-arm the slow-path EQ */ | |
9482 | lpfc_sli4_eq_release(speq, LPFC_QUEUE_REARM); | |
9483 | ||
9484 | /* Catch the no cq entry condition */ | |
9485 | if (unlikely(ecount == 0)) { | |
9486 | if (phba->intr_type == MSIX) | |
9487 | /* MSI-X treated interrupt served as no EQ share INT */ | |
9488 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, | |
9489 | "0357 MSI-X interrupt with no EQE\n"); | |
9490 | else | |
9491 | /* Non MSI-X treated on interrupt as EQ share INT */ | |
9492 | return IRQ_NONE; | |
9493 | } | |
9494 | ||
9495 | return IRQ_HANDLED; | |
9496 | } /* lpfc_sli4_sp_intr_handler */ | |
9497 | ||
9498 | /** | |
9499 | * lpfc_sli4_fp_intr_handler - Fast-path interrupt handler to SLI-4 device | |
9500 | * @irq: Interrupt number. | |
9501 | * @dev_id: The device context pointer. | |
9502 | * | |
9503 | * This function is directly called from the PCI layer as an interrupt | |
9504 | * service routine when device with SLI-4 interface spec is enabled with | |
9505 | * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB | |
9506 | * ring event in the HBA. However, when the device is enabled with either | |
9507 | * MSI or Pin-IRQ interrupt mode, this function is called as part of the | |
9508 | * device-level interrupt handler. When the PCI slot is in error recovery | |
9509 | * or the HBA is undergoing initialization, the interrupt handler will not | |
9510 | * process the interrupt. The SCSI FCP fast-path ring event are handled in | |
9511 | * the intrrupt context. This function is called without any lock held. | |
9512 | * It gets the hbalock to access and update SLI data structures. Note that, | |
9513 | * the FCP EQ to FCP CQ are one-to-one map such that the FCP EQ index is | |
9514 | * equal to that of FCP CQ index. | |
9515 | * | |
9516 | * This function returns IRQ_HANDLED when interrupt is handled else it | |
9517 | * returns IRQ_NONE. | |
9518 | **/ | |
9519 | irqreturn_t | |
9520 | lpfc_sli4_fp_intr_handler(int irq, void *dev_id) | |
9521 | { | |
9522 | struct lpfc_hba *phba; | |
9523 | struct lpfc_fcp_eq_hdl *fcp_eq_hdl; | |
9524 | struct lpfc_queue *fpeq; | |
9525 | struct lpfc_eqe *eqe; | |
9526 | unsigned long iflag; | |
9527 | int ecount = 0; | |
9528 | uint32_t fcp_eqidx; | |
9529 | ||
9530 | /* Get the driver's phba structure from the dev_id */ | |
9531 | fcp_eq_hdl = (struct lpfc_fcp_eq_hdl *)dev_id; | |
9532 | phba = fcp_eq_hdl->phba; | |
9533 | fcp_eqidx = fcp_eq_hdl->idx; | |
9534 | ||
9535 | if (unlikely(!phba)) | |
9536 | return IRQ_NONE; | |
9537 | ||
9538 | /* Get to the EQ struct associated with this vector */ | |
9539 | fpeq = phba->sli4_hba.fp_eq[fcp_eqidx]; | |
9540 | ||
9541 | /* Check device state for handling interrupt */ | |
9542 | if (unlikely(lpfc_intr_state_check(phba))) { | |
9543 | /* Check again for link_state with lock held */ | |
9544 | spin_lock_irqsave(&phba->hbalock, iflag); | |
9545 | if (phba->link_state < LPFC_LINK_DOWN) | |
9546 | /* Flush, clear interrupt, and rearm the EQ */ | |
9547 | lpfc_sli4_eq_flush(phba, fpeq); | |
9548 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
9549 | return IRQ_NONE; | |
9550 | } | |
9551 | ||
9552 | /* | |
9553 | * Process all the event on FCP fast-path EQ | |
9554 | */ | |
9555 | while ((eqe = lpfc_sli4_eq_get(fpeq))) { | |
9556 | lpfc_sli4_fp_handle_eqe(phba, eqe, fcp_eqidx); | |
9557 | if (!(++ecount % LPFC_GET_QE_REL_INT)) | |
9558 | lpfc_sli4_eq_release(fpeq, LPFC_QUEUE_NOARM); | |
9559 | } | |
9560 | ||
9561 | /* Always clear and re-arm the fast-path EQ */ | |
9562 | lpfc_sli4_eq_release(fpeq, LPFC_QUEUE_REARM); | |
9563 | ||
9564 | if (unlikely(ecount == 0)) { | |
9565 | if (phba->intr_type == MSIX) | |
9566 | /* MSI-X treated interrupt served as no EQ share INT */ | |
9567 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, | |
9568 | "0358 MSI-X interrupt with no EQE\n"); | |
9569 | else | |
9570 | /* Non MSI-X treated on interrupt as EQ share INT */ | |
9571 | return IRQ_NONE; | |
9572 | } | |
9573 | ||
9574 | return IRQ_HANDLED; | |
9575 | } /* lpfc_sli4_fp_intr_handler */ | |
9576 | ||
9577 | /** | |
9578 | * lpfc_sli4_intr_handler - Device-level interrupt handler for SLI-4 device | |
9579 | * @irq: Interrupt number. | |
9580 | * @dev_id: The device context pointer. | |
9581 | * | |
9582 | * This function is the device-level interrupt handler to device with SLI-4 | |
9583 | * interface spec, called from the PCI layer when either MSI or Pin-IRQ | |
9584 | * interrupt mode is enabled and there is an event in the HBA which requires | |
9585 | * driver attention. This function invokes the slow-path interrupt attention | |
9586 | * handling function and fast-path interrupt attention handling function in | |
9587 | * turn to process the relevant HBA attention events. This function is called | |
9588 | * without any lock held. It gets the hbalock to access and update SLI data | |
9589 | * structures. | |
9590 | * | |
9591 | * This function returns IRQ_HANDLED when interrupt is handled, else it | |
9592 | * returns IRQ_NONE. | |
9593 | **/ | |
9594 | irqreturn_t | |
9595 | lpfc_sli4_intr_handler(int irq, void *dev_id) | |
9596 | { | |
9597 | struct lpfc_hba *phba; | |
9598 | irqreturn_t sp_irq_rc, fp_irq_rc; | |
9599 | bool fp_handled = false; | |
9600 | uint32_t fcp_eqidx; | |
9601 | ||
9602 | /* Get the driver's phba structure from the dev_id */ | |
9603 | phba = (struct lpfc_hba *)dev_id; | |
9604 | ||
9605 | if (unlikely(!phba)) | |
9606 | return IRQ_NONE; | |
9607 | ||
9608 | /* | |
9609 | * Invokes slow-path host attention interrupt handling as appropriate. | |
9610 | */ | |
9611 | sp_irq_rc = lpfc_sli4_sp_intr_handler(irq, dev_id); | |
9612 | ||
9613 | /* | |
9614 | * Invoke fast-path host attention interrupt handling as appropriate. | |
9615 | */ | |
9616 | for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) { | |
9617 | fp_irq_rc = lpfc_sli4_fp_intr_handler(irq, | |
9618 | &phba->sli4_hba.fcp_eq_hdl[fcp_eqidx]); | |
9619 | if (fp_irq_rc == IRQ_HANDLED) | |
9620 | fp_handled |= true; | |
9621 | } | |
9622 | ||
9623 | return (fp_handled == true) ? IRQ_HANDLED : sp_irq_rc; | |
9624 | } /* lpfc_sli4_intr_handler */ | |
9625 | ||
9626 | /** | |
9627 | * lpfc_sli4_queue_free - free a queue structure and associated memory | |
9628 | * @queue: The queue structure to free. | |
9629 | * | |
9630 | * This function frees a queue structure and the DMAable memeory used for | |
9631 | * the host resident queue. This function must be called after destroying the | |
9632 | * queue on the HBA. | |
9633 | **/ | |
9634 | void | |
9635 | lpfc_sli4_queue_free(struct lpfc_queue *queue) | |
9636 | { | |
9637 | struct lpfc_dmabuf *dmabuf; | |
9638 | ||
9639 | if (!queue) | |
9640 | return; | |
9641 | ||
9642 | while (!list_empty(&queue->page_list)) { | |
9643 | list_remove_head(&queue->page_list, dmabuf, struct lpfc_dmabuf, | |
9644 | list); | |
49198b37 | 9645 | dma_free_coherent(&queue->phba->pcidev->dev, SLI4_PAGE_SIZE, |
4f774513 JS |
9646 | dmabuf->virt, dmabuf->phys); |
9647 | kfree(dmabuf); | |
9648 | } | |
9649 | kfree(queue); | |
9650 | return; | |
9651 | } | |
9652 | ||
9653 | /** | |
9654 | * lpfc_sli4_queue_alloc - Allocate and initialize a queue structure | |
9655 | * @phba: The HBA that this queue is being created on. | |
9656 | * @entry_size: The size of each queue entry for this queue. | |
9657 | * @entry count: The number of entries that this queue will handle. | |
9658 | * | |
9659 | * This function allocates a queue structure and the DMAable memory used for | |
9660 | * the host resident queue. This function must be called before creating the | |
9661 | * queue on the HBA. | |
9662 | **/ | |
9663 | struct lpfc_queue * | |
9664 | lpfc_sli4_queue_alloc(struct lpfc_hba *phba, uint32_t entry_size, | |
9665 | uint32_t entry_count) | |
9666 | { | |
9667 | struct lpfc_queue *queue; | |
9668 | struct lpfc_dmabuf *dmabuf; | |
9669 | int x, total_qe_count; | |
9670 | void *dma_pointer; | |
cb5172ea | 9671 | uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz; |
4f774513 | 9672 | |
cb5172ea JS |
9673 | if (!phba->sli4_hba.pc_sli4_params.supported) |
9674 | hw_page_size = SLI4_PAGE_SIZE; | |
9675 | ||
4f774513 JS |
9676 | queue = kzalloc(sizeof(struct lpfc_queue) + |
9677 | (sizeof(union sli4_qe) * entry_count), GFP_KERNEL); | |
9678 | if (!queue) | |
9679 | return NULL; | |
cb5172ea JS |
9680 | queue->page_count = (ALIGN(entry_size * entry_count, |
9681 | hw_page_size))/hw_page_size; | |
4f774513 JS |
9682 | INIT_LIST_HEAD(&queue->list); |
9683 | INIT_LIST_HEAD(&queue->page_list); | |
9684 | INIT_LIST_HEAD(&queue->child_list); | |
9685 | for (x = 0, total_qe_count = 0; x < queue->page_count; x++) { | |
9686 | dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); | |
9687 | if (!dmabuf) | |
9688 | goto out_fail; | |
9689 | dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, | |
cb5172ea | 9690 | hw_page_size, &dmabuf->phys, |
4f774513 JS |
9691 | GFP_KERNEL); |
9692 | if (!dmabuf->virt) { | |
9693 | kfree(dmabuf); | |
9694 | goto out_fail; | |
9695 | } | |
cb5172ea | 9696 | memset(dmabuf->virt, 0, hw_page_size); |
4f774513 JS |
9697 | dmabuf->buffer_tag = x; |
9698 | list_add_tail(&dmabuf->list, &queue->page_list); | |
9699 | /* initialize queue's entry array */ | |
9700 | dma_pointer = dmabuf->virt; | |
9701 | for (; total_qe_count < entry_count && | |
cb5172ea | 9702 | dma_pointer < (hw_page_size + dmabuf->virt); |
4f774513 JS |
9703 | total_qe_count++, dma_pointer += entry_size) { |
9704 | queue->qe[total_qe_count].address = dma_pointer; | |
9705 | } | |
9706 | } | |
9707 | queue->entry_size = entry_size; | |
9708 | queue->entry_count = entry_count; | |
9709 | queue->phba = phba; | |
9710 | ||
9711 | return queue; | |
9712 | out_fail: | |
9713 | lpfc_sli4_queue_free(queue); | |
9714 | return NULL; | |
9715 | } | |
9716 | ||
9717 | /** | |
9718 | * lpfc_eq_create - Create an Event Queue on the HBA | |
9719 | * @phba: HBA structure that indicates port to create a queue on. | |
9720 | * @eq: The queue structure to use to create the event queue. | |
9721 | * @imax: The maximum interrupt per second limit. | |
9722 | * | |
9723 | * This function creates an event queue, as detailed in @eq, on a port, | |
9724 | * described by @phba by sending an EQ_CREATE mailbox command to the HBA. | |
9725 | * | |
9726 | * The @phba struct is used to send mailbox command to HBA. The @eq struct | |
9727 | * is used to get the entry count and entry size that are necessary to | |
9728 | * determine the number of pages to allocate and use for this queue. This | |
9729 | * function will send the EQ_CREATE mailbox command to the HBA to setup the | |
9730 | * event queue. This function is asynchronous and will wait for the mailbox | |
9731 | * command to finish before continuing. | |
9732 | * | |
9733 | * On success this function will return a zero. If unable to allocate enough | |
d439d286 JS |
9734 | * memory this function will return -ENOMEM. If the queue create mailbox command |
9735 | * fails this function will return -ENXIO. | |
4f774513 JS |
9736 | **/ |
9737 | uint32_t | |
9738 | lpfc_eq_create(struct lpfc_hba *phba, struct lpfc_queue *eq, uint16_t imax) | |
9739 | { | |
9740 | struct lpfc_mbx_eq_create *eq_create; | |
9741 | LPFC_MBOXQ_t *mbox; | |
9742 | int rc, length, status = 0; | |
9743 | struct lpfc_dmabuf *dmabuf; | |
9744 | uint32_t shdr_status, shdr_add_status; | |
9745 | union lpfc_sli4_cfg_shdr *shdr; | |
9746 | uint16_t dmult; | |
49198b37 JS |
9747 | uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz; |
9748 | ||
9749 | if (!phba->sli4_hba.pc_sli4_params.supported) | |
9750 | hw_page_size = SLI4_PAGE_SIZE; | |
4f774513 JS |
9751 | |
9752 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
9753 | if (!mbox) | |
9754 | return -ENOMEM; | |
9755 | length = (sizeof(struct lpfc_mbx_eq_create) - | |
9756 | sizeof(struct lpfc_sli4_cfg_mhdr)); | |
9757 | lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON, | |
9758 | LPFC_MBOX_OPCODE_EQ_CREATE, | |
9759 | length, LPFC_SLI4_MBX_EMBED); | |
9760 | eq_create = &mbox->u.mqe.un.eq_create; | |
9761 | bf_set(lpfc_mbx_eq_create_num_pages, &eq_create->u.request, | |
9762 | eq->page_count); | |
9763 | bf_set(lpfc_eq_context_size, &eq_create->u.request.context, | |
9764 | LPFC_EQE_SIZE); | |
9765 | bf_set(lpfc_eq_context_valid, &eq_create->u.request.context, 1); | |
9766 | /* Calculate delay multiper from maximum interrupt per second */ | |
9767 | dmult = LPFC_DMULT_CONST/imax - 1; | |
9768 | bf_set(lpfc_eq_context_delay_multi, &eq_create->u.request.context, | |
9769 | dmult); | |
9770 | switch (eq->entry_count) { | |
9771 | default: | |
9772 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
9773 | "0360 Unsupported EQ count. (%d)\n", | |
9774 | eq->entry_count); | |
9775 | if (eq->entry_count < 256) | |
9776 | return -EINVAL; | |
9777 | /* otherwise default to smallest count (drop through) */ | |
9778 | case 256: | |
9779 | bf_set(lpfc_eq_context_count, &eq_create->u.request.context, | |
9780 | LPFC_EQ_CNT_256); | |
9781 | break; | |
9782 | case 512: | |
9783 | bf_set(lpfc_eq_context_count, &eq_create->u.request.context, | |
9784 | LPFC_EQ_CNT_512); | |
9785 | break; | |
9786 | case 1024: | |
9787 | bf_set(lpfc_eq_context_count, &eq_create->u.request.context, | |
9788 | LPFC_EQ_CNT_1024); | |
9789 | break; | |
9790 | case 2048: | |
9791 | bf_set(lpfc_eq_context_count, &eq_create->u.request.context, | |
9792 | LPFC_EQ_CNT_2048); | |
9793 | break; | |
9794 | case 4096: | |
9795 | bf_set(lpfc_eq_context_count, &eq_create->u.request.context, | |
9796 | LPFC_EQ_CNT_4096); | |
9797 | break; | |
9798 | } | |
9799 | list_for_each_entry(dmabuf, &eq->page_list, list) { | |
49198b37 | 9800 | memset(dmabuf->virt, 0, hw_page_size); |
4f774513 JS |
9801 | eq_create->u.request.page[dmabuf->buffer_tag].addr_lo = |
9802 | putPaddrLow(dmabuf->phys); | |
9803 | eq_create->u.request.page[dmabuf->buffer_tag].addr_hi = | |
9804 | putPaddrHigh(dmabuf->phys); | |
9805 | } | |
9806 | mbox->vport = phba->pport; | |
9807 | mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
9808 | mbox->context1 = NULL; | |
9809 | rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL); | |
9810 | shdr = (union lpfc_sli4_cfg_shdr *) &eq_create->header.cfg_shdr; | |
9811 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); | |
9812 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); | |
9813 | if (shdr_status || shdr_add_status || rc) { | |
9814 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
9815 | "2500 EQ_CREATE mailbox failed with " | |
9816 | "status x%x add_status x%x, mbx status x%x\n", | |
9817 | shdr_status, shdr_add_status, rc); | |
9818 | status = -ENXIO; | |
9819 | } | |
9820 | eq->type = LPFC_EQ; | |
9821 | eq->subtype = LPFC_NONE; | |
9822 | eq->queue_id = bf_get(lpfc_mbx_eq_create_q_id, &eq_create->u.response); | |
9823 | if (eq->queue_id == 0xFFFF) | |
9824 | status = -ENXIO; | |
9825 | eq->host_index = 0; | |
9826 | eq->hba_index = 0; | |
9827 | ||
8fa38513 | 9828 | mempool_free(mbox, phba->mbox_mem_pool); |
4f774513 JS |
9829 | return status; |
9830 | } | |
9831 | ||
9832 | /** | |
9833 | * lpfc_cq_create - Create a Completion Queue on the HBA | |
9834 | * @phba: HBA structure that indicates port to create a queue on. | |
9835 | * @cq: The queue structure to use to create the completion queue. | |
9836 | * @eq: The event queue to bind this completion queue to. | |
9837 | * | |
9838 | * This function creates a completion queue, as detailed in @wq, on a port, | |
9839 | * described by @phba by sending a CQ_CREATE mailbox command to the HBA. | |
9840 | * | |
9841 | * The @phba struct is used to send mailbox command to HBA. The @cq struct | |
9842 | * is used to get the entry count and entry size that are necessary to | |
9843 | * determine the number of pages to allocate and use for this queue. The @eq | |
9844 | * is used to indicate which event queue to bind this completion queue to. This | |
9845 | * function will send the CQ_CREATE mailbox command to the HBA to setup the | |
9846 | * completion queue. This function is asynchronous and will wait for the mailbox | |
9847 | * command to finish before continuing. | |
9848 | * | |
9849 | * On success this function will return a zero. If unable to allocate enough | |
d439d286 JS |
9850 | * memory this function will return -ENOMEM. If the queue create mailbox command |
9851 | * fails this function will return -ENXIO. | |
4f774513 JS |
9852 | **/ |
9853 | uint32_t | |
9854 | lpfc_cq_create(struct lpfc_hba *phba, struct lpfc_queue *cq, | |
9855 | struct lpfc_queue *eq, uint32_t type, uint32_t subtype) | |
9856 | { | |
9857 | struct lpfc_mbx_cq_create *cq_create; | |
9858 | struct lpfc_dmabuf *dmabuf; | |
9859 | LPFC_MBOXQ_t *mbox; | |
9860 | int rc, length, status = 0; | |
9861 | uint32_t shdr_status, shdr_add_status; | |
9862 | union lpfc_sli4_cfg_shdr *shdr; | |
49198b37 JS |
9863 | uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz; |
9864 | ||
9865 | if (!phba->sli4_hba.pc_sli4_params.supported) | |
9866 | hw_page_size = SLI4_PAGE_SIZE; | |
9867 | ||
4f774513 JS |
9868 | |
9869 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
9870 | if (!mbox) | |
9871 | return -ENOMEM; | |
9872 | length = (sizeof(struct lpfc_mbx_cq_create) - | |
9873 | sizeof(struct lpfc_sli4_cfg_mhdr)); | |
9874 | lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON, | |
9875 | LPFC_MBOX_OPCODE_CQ_CREATE, | |
9876 | length, LPFC_SLI4_MBX_EMBED); | |
9877 | cq_create = &mbox->u.mqe.un.cq_create; | |
9878 | bf_set(lpfc_mbx_cq_create_num_pages, &cq_create->u.request, | |
9879 | cq->page_count); | |
9880 | bf_set(lpfc_cq_context_event, &cq_create->u.request.context, 1); | |
9881 | bf_set(lpfc_cq_context_valid, &cq_create->u.request.context, 1); | |
9882 | bf_set(lpfc_cq_eq_id, &cq_create->u.request.context, eq->queue_id); | |
9883 | switch (cq->entry_count) { | |
9884 | default: | |
9885 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
9886 | "0361 Unsupported CQ count. (%d)\n", | |
9887 | cq->entry_count); | |
9888 | if (cq->entry_count < 256) | |
9889 | return -EINVAL; | |
9890 | /* otherwise default to smallest count (drop through) */ | |
9891 | case 256: | |
9892 | bf_set(lpfc_cq_context_count, &cq_create->u.request.context, | |
9893 | LPFC_CQ_CNT_256); | |
9894 | break; | |
9895 | case 512: | |
9896 | bf_set(lpfc_cq_context_count, &cq_create->u.request.context, | |
9897 | LPFC_CQ_CNT_512); | |
9898 | break; | |
9899 | case 1024: | |
9900 | bf_set(lpfc_cq_context_count, &cq_create->u.request.context, | |
9901 | LPFC_CQ_CNT_1024); | |
9902 | break; | |
9903 | } | |
9904 | list_for_each_entry(dmabuf, &cq->page_list, list) { | |
49198b37 | 9905 | memset(dmabuf->virt, 0, hw_page_size); |
4f774513 JS |
9906 | cq_create->u.request.page[dmabuf->buffer_tag].addr_lo = |
9907 | putPaddrLow(dmabuf->phys); | |
9908 | cq_create->u.request.page[dmabuf->buffer_tag].addr_hi = | |
9909 | putPaddrHigh(dmabuf->phys); | |
9910 | } | |
9911 | rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL); | |
9912 | ||
9913 | /* The IOCTL status is embedded in the mailbox subheader. */ | |
9914 | shdr = (union lpfc_sli4_cfg_shdr *) &cq_create->header.cfg_shdr; | |
9915 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); | |
9916 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); | |
9917 | if (shdr_status || shdr_add_status || rc) { | |
9918 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
9919 | "2501 CQ_CREATE mailbox failed with " | |
9920 | "status x%x add_status x%x, mbx status x%x\n", | |
9921 | shdr_status, shdr_add_status, rc); | |
9922 | status = -ENXIO; | |
9923 | goto out; | |
9924 | } | |
9925 | cq->queue_id = bf_get(lpfc_mbx_cq_create_q_id, &cq_create->u.response); | |
9926 | if (cq->queue_id == 0xFFFF) { | |
9927 | status = -ENXIO; | |
9928 | goto out; | |
9929 | } | |
9930 | /* link the cq onto the parent eq child list */ | |
9931 | list_add_tail(&cq->list, &eq->child_list); | |
9932 | /* Set up completion queue's type and subtype */ | |
9933 | cq->type = type; | |
9934 | cq->subtype = subtype; | |
9935 | cq->queue_id = bf_get(lpfc_mbx_cq_create_q_id, &cq_create->u.response); | |
9936 | cq->host_index = 0; | |
9937 | cq->hba_index = 0; | |
4f774513 | 9938 | |
8fa38513 JS |
9939 | out: |
9940 | mempool_free(mbox, phba->mbox_mem_pool); | |
4f774513 JS |
9941 | return status; |
9942 | } | |
9943 | ||
b19a061a JS |
9944 | /** |
9945 | * lpfc_mq_create_fb_init - Send MCC_CREATE without async events registration | |
9946 | * @phba: HBA structure that indicates port to create a queue on. | |
9947 | * @mq: The queue structure to use to create the mailbox queue. | |
9948 | * @mbox: An allocated pointer to type LPFC_MBOXQ_t | |
9949 | * @cq: The completion queue to associate with this cq. | |
9950 | * | |
9951 | * This function provides failback (fb) functionality when the | |
9952 | * mq_create_ext fails on older FW generations. It's purpose is identical | |
9953 | * to mq_create_ext otherwise. | |
9954 | * | |
9955 | * This routine cannot fail as all attributes were previously accessed and | |
9956 | * initialized in mq_create_ext. | |
9957 | **/ | |
9958 | static void | |
9959 | lpfc_mq_create_fb_init(struct lpfc_hba *phba, struct lpfc_queue *mq, | |
9960 | LPFC_MBOXQ_t *mbox, struct lpfc_queue *cq) | |
9961 | { | |
9962 | struct lpfc_mbx_mq_create *mq_create; | |
9963 | struct lpfc_dmabuf *dmabuf; | |
9964 | int length; | |
9965 | ||
9966 | length = (sizeof(struct lpfc_mbx_mq_create) - | |
9967 | sizeof(struct lpfc_sli4_cfg_mhdr)); | |
9968 | lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON, | |
9969 | LPFC_MBOX_OPCODE_MQ_CREATE, | |
9970 | length, LPFC_SLI4_MBX_EMBED); | |
9971 | mq_create = &mbox->u.mqe.un.mq_create; | |
9972 | bf_set(lpfc_mbx_mq_create_num_pages, &mq_create->u.request, | |
9973 | mq->page_count); | |
9974 | bf_set(lpfc_mq_context_cq_id, &mq_create->u.request.context, | |
9975 | cq->queue_id); | |
9976 | bf_set(lpfc_mq_context_valid, &mq_create->u.request.context, 1); | |
9977 | switch (mq->entry_count) { | |
9978 | case 16: | |
9979 | bf_set(lpfc_mq_context_count, &mq_create->u.request.context, | |
9980 | LPFC_MQ_CNT_16); | |
9981 | break; | |
9982 | case 32: | |
9983 | bf_set(lpfc_mq_context_count, &mq_create->u.request.context, | |
9984 | LPFC_MQ_CNT_32); | |
9985 | break; | |
9986 | case 64: | |
9987 | bf_set(lpfc_mq_context_count, &mq_create->u.request.context, | |
9988 | LPFC_MQ_CNT_64); | |
9989 | break; | |
9990 | case 128: | |
9991 | bf_set(lpfc_mq_context_count, &mq_create->u.request.context, | |
9992 | LPFC_MQ_CNT_128); | |
9993 | break; | |
9994 | } | |
9995 | list_for_each_entry(dmabuf, &mq->page_list, list) { | |
9996 | mq_create->u.request.page[dmabuf->buffer_tag].addr_lo = | |
9997 | putPaddrLow(dmabuf->phys); | |
9998 | mq_create->u.request.page[dmabuf->buffer_tag].addr_hi = | |
9999 | putPaddrHigh(dmabuf->phys); | |
10000 | } | |
10001 | } | |
10002 | ||
04c68496 JS |
10003 | /** |
10004 | * lpfc_mq_create - Create a mailbox Queue on the HBA | |
10005 | * @phba: HBA structure that indicates port to create a queue on. | |
10006 | * @mq: The queue structure to use to create the mailbox queue. | |
b19a061a JS |
10007 | * @cq: The completion queue to associate with this cq. |
10008 | * @subtype: The queue's subtype. | |
04c68496 JS |
10009 | * |
10010 | * This function creates a mailbox queue, as detailed in @mq, on a port, | |
10011 | * described by @phba by sending a MQ_CREATE mailbox command to the HBA. | |
10012 | * | |
10013 | * The @phba struct is used to send mailbox command to HBA. The @cq struct | |
10014 | * is used to get the entry count and entry size that are necessary to | |
10015 | * determine the number of pages to allocate and use for this queue. This | |
10016 | * function will send the MQ_CREATE mailbox command to the HBA to setup the | |
10017 | * mailbox queue. This function is asynchronous and will wait for the mailbox | |
10018 | * command to finish before continuing. | |
10019 | * | |
10020 | * On success this function will return a zero. If unable to allocate enough | |
d439d286 JS |
10021 | * memory this function will return -ENOMEM. If the queue create mailbox command |
10022 | * fails this function will return -ENXIO. | |
04c68496 | 10023 | **/ |
b19a061a | 10024 | int32_t |
04c68496 JS |
10025 | lpfc_mq_create(struct lpfc_hba *phba, struct lpfc_queue *mq, |
10026 | struct lpfc_queue *cq, uint32_t subtype) | |
10027 | { | |
10028 | struct lpfc_mbx_mq_create *mq_create; | |
b19a061a | 10029 | struct lpfc_mbx_mq_create_ext *mq_create_ext; |
04c68496 JS |
10030 | struct lpfc_dmabuf *dmabuf; |
10031 | LPFC_MBOXQ_t *mbox; | |
10032 | int rc, length, status = 0; | |
10033 | uint32_t shdr_status, shdr_add_status; | |
10034 | union lpfc_sli4_cfg_shdr *shdr; | |
49198b37 | 10035 | uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz; |
04c68496 | 10036 | |
49198b37 JS |
10037 | if (!phba->sli4_hba.pc_sli4_params.supported) |
10038 | hw_page_size = SLI4_PAGE_SIZE; | |
b19a061a | 10039 | |
04c68496 JS |
10040 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
10041 | if (!mbox) | |
10042 | return -ENOMEM; | |
b19a061a | 10043 | length = (sizeof(struct lpfc_mbx_mq_create_ext) - |
04c68496 JS |
10044 | sizeof(struct lpfc_sli4_cfg_mhdr)); |
10045 | lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON, | |
b19a061a | 10046 | LPFC_MBOX_OPCODE_MQ_CREATE_EXT, |
04c68496 | 10047 | length, LPFC_SLI4_MBX_EMBED); |
b19a061a JS |
10048 | |
10049 | mq_create_ext = &mbox->u.mqe.un.mq_create_ext; | |
10050 | bf_set(lpfc_mbx_mq_create_ext_num_pages, &mq_create_ext->u.request, | |
04c68496 | 10051 | mq->page_count); |
b19a061a JS |
10052 | bf_set(lpfc_mbx_mq_create_ext_async_evt_link, &mq_create_ext->u.request, |
10053 | 1); | |
10054 | bf_set(lpfc_mbx_mq_create_ext_async_evt_fcfste, | |
10055 | &mq_create_ext->u.request, 1); | |
10056 | bf_set(lpfc_mbx_mq_create_ext_async_evt_group5, | |
10057 | &mq_create_ext->u.request, 1); | |
10058 | bf_set(lpfc_mq_context_cq_id, &mq_create_ext->u.request.context, | |
10059 | cq->queue_id); | |
10060 | bf_set(lpfc_mq_context_valid, &mq_create_ext->u.request.context, 1); | |
04c68496 JS |
10061 | switch (mq->entry_count) { |
10062 | default: | |
10063 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
10064 | "0362 Unsupported MQ count. (%d)\n", | |
10065 | mq->entry_count); | |
10066 | if (mq->entry_count < 16) | |
10067 | return -EINVAL; | |
10068 | /* otherwise default to smallest count (drop through) */ | |
10069 | case 16: | |
b19a061a | 10070 | bf_set(lpfc_mq_context_count, &mq_create_ext->u.request.context, |
04c68496 JS |
10071 | LPFC_MQ_CNT_16); |
10072 | break; | |
10073 | case 32: | |
b19a061a | 10074 | bf_set(lpfc_mq_context_count, &mq_create_ext->u.request.context, |
04c68496 JS |
10075 | LPFC_MQ_CNT_32); |
10076 | break; | |
10077 | case 64: | |
b19a061a | 10078 | bf_set(lpfc_mq_context_count, &mq_create_ext->u.request.context, |
04c68496 JS |
10079 | LPFC_MQ_CNT_64); |
10080 | break; | |
10081 | case 128: | |
b19a061a | 10082 | bf_set(lpfc_mq_context_count, &mq_create_ext->u.request.context, |
04c68496 JS |
10083 | LPFC_MQ_CNT_128); |
10084 | break; | |
10085 | } | |
10086 | list_for_each_entry(dmabuf, &mq->page_list, list) { | |
49198b37 | 10087 | memset(dmabuf->virt, 0, hw_page_size); |
b19a061a | 10088 | mq_create_ext->u.request.page[dmabuf->buffer_tag].addr_lo = |
04c68496 | 10089 | putPaddrLow(dmabuf->phys); |
b19a061a | 10090 | mq_create_ext->u.request.page[dmabuf->buffer_tag].addr_hi = |
04c68496 JS |
10091 | putPaddrHigh(dmabuf->phys); |
10092 | } | |
10093 | rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL); | |
b19a061a JS |
10094 | shdr = (union lpfc_sli4_cfg_shdr *) &mq_create_ext->header.cfg_shdr; |
10095 | mq->queue_id = bf_get(lpfc_mbx_mq_create_q_id, | |
10096 | &mq_create_ext->u.response); | |
10097 | if (rc != MBX_SUCCESS) { | |
10098 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
10099 | "2795 MQ_CREATE_EXT failed with " | |
10100 | "status x%x. Failback to MQ_CREATE.\n", | |
10101 | rc); | |
10102 | lpfc_mq_create_fb_init(phba, mq, mbox, cq); | |
10103 | mq_create = &mbox->u.mqe.un.mq_create; | |
10104 | rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL); | |
10105 | shdr = (union lpfc_sli4_cfg_shdr *) &mq_create->header.cfg_shdr; | |
10106 | mq->queue_id = bf_get(lpfc_mbx_mq_create_q_id, | |
10107 | &mq_create->u.response); | |
10108 | } | |
10109 | ||
04c68496 | 10110 | /* The IOCTL status is embedded in the mailbox subheader. */ |
04c68496 JS |
10111 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); |
10112 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); | |
10113 | if (shdr_status || shdr_add_status || rc) { | |
10114 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
10115 | "2502 MQ_CREATE mailbox failed with " | |
10116 | "status x%x add_status x%x, mbx status x%x\n", | |
10117 | shdr_status, shdr_add_status, rc); | |
10118 | status = -ENXIO; | |
10119 | goto out; | |
10120 | } | |
04c68496 JS |
10121 | if (mq->queue_id == 0xFFFF) { |
10122 | status = -ENXIO; | |
10123 | goto out; | |
10124 | } | |
10125 | mq->type = LPFC_MQ; | |
10126 | mq->subtype = subtype; | |
10127 | mq->host_index = 0; | |
10128 | mq->hba_index = 0; | |
10129 | ||
10130 | /* link the mq onto the parent cq child list */ | |
10131 | list_add_tail(&mq->list, &cq->child_list); | |
10132 | out: | |
8fa38513 | 10133 | mempool_free(mbox, phba->mbox_mem_pool); |
04c68496 JS |
10134 | return status; |
10135 | } | |
10136 | ||
4f774513 JS |
10137 | /** |
10138 | * lpfc_wq_create - Create a Work Queue on the HBA | |
10139 | * @phba: HBA structure that indicates port to create a queue on. | |
10140 | * @wq: The queue structure to use to create the work queue. | |
10141 | * @cq: The completion queue to bind this work queue to. | |
10142 | * @subtype: The subtype of the work queue indicating its functionality. | |
10143 | * | |
10144 | * This function creates a work queue, as detailed in @wq, on a port, described | |
10145 | * by @phba by sending a WQ_CREATE mailbox command to the HBA. | |
10146 | * | |
10147 | * The @phba struct is used to send mailbox command to HBA. The @wq struct | |
10148 | * is used to get the entry count and entry size that are necessary to | |
10149 | * determine the number of pages to allocate and use for this queue. The @cq | |
10150 | * is used to indicate which completion queue to bind this work queue to. This | |
10151 | * function will send the WQ_CREATE mailbox command to the HBA to setup the | |
10152 | * work queue. This function is asynchronous and will wait for the mailbox | |
10153 | * command to finish before continuing. | |
10154 | * | |
10155 | * On success this function will return a zero. If unable to allocate enough | |
d439d286 JS |
10156 | * memory this function will return -ENOMEM. If the queue create mailbox command |
10157 | * fails this function will return -ENXIO. | |
4f774513 JS |
10158 | **/ |
10159 | uint32_t | |
10160 | lpfc_wq_create(struct lpfc_hba *phba, struct lpfc_queue *wq, | |
10161 | struct lpfc_queue *cq, uint32_t subtype) | |
10162 | { | |
10163 | struct lpfc_mbx_wq_create *wq_create; | |
10164 | struct lpfc_dmabuf *dmabuf; | |
10165 | LPFC_MBOXQ_t *mbox; | |
10166 | int rc, length, status = 0; | |
10167 | uint32_t shdr_status, shdr_add_status; | |
10168 | union lpfc_sli4_cfg_shdr *shdr; | |
49198b37 JS |
10169 | uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz; |
10170 | ||
10171 | if (!phba->sli4_hba.pc_sli4_params.supported) | |
10172 | hw_page_size = SLI4_PAGE_SIZE; | |
4f774513 JS |
10173 | |
10174 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
10175 | if (!mbox) | |
10176 | return -ENOMEM; | |
10177 | length = (sizeof(struct lpfc_mbx_wq_create) - | |
10178 | sizeof(struct lpfc_sli4_cfg_mhdr)); | |
10179 | lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE, | |
10180 | LPFC_MBOX_OPCODE_FCOE_WQ_CREATE, | |
10181 | length, LPFC_SLI4_MBX_EMBED); | |
10182 | wq_create = &mbox->u.mqe.un.wq_create; | |
10183 | bf_set(lpfc_mbx_wq_create_num_pages, &wq_create->u.request, | |
10184 | wq->page_count); | |
10185 | bf_set(lpfc_mbx_wq_create_cq_id, &wq_create->u.request, | |
10186 | cq->queue_id); | |
10187 | list_for_each_entry(dmabuf, &wq->page_list, list) { | |
49198b37 | 10188 | memset(dmabuf->virt, 0, hw_page_size); |
4f774513 JS |
10189 | wq_create->u.request.page[dmabuf->buffer_tag].addr_lo = |
10190 | putPaddrLow(dmabuf->phys); | |
10191 | wq_create->u.request.page[dmabuf->buffer_tag].addr_hi = | |
10192 | putPaddrHigh(dmabuf->phys); | |
10193 | } | |
10194 | rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL); | |
10195 | /* The IOCTL status is embedded in the mailbox subheader. */ | |
10196 | shdr = (union lpfc_sli4_cfg_shdr *) &wq_create->header.cfg_shdr; | |
10197 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); | |
10198 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); | |
10199 | if (shdr_status || shdr_add_status || rc) { | |
10200 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
10201 | "2503 WQ_CREATE mailbox failed with " | |
10202 | "status x%x add_status x%x, mbx status x%x\n", | |
10203 | shdr_status, shdr_add_status, rc); | |
10204 | status = -ENXIO; | |
10205 | goto out; | |
10206 | } | |
10207 | wq->queue_id = bf_get(lpfc_mbx_wq_create_q_id, &wq_create->u.response); | |
10208 | if (wq->queue_id == 0xFFFF) { | |
10209 | status = -ENXIO; | |
10210 | goto out; | |
10211 | } | |
10212 | wq->type = LPFC_WQ; | |
10213 | wq->subtype = subtype; | |
10214 | wq->host_index = 0; | |
10215 | wq->hba_index = 0; | |
10216 | ||
10217 | /* link the wq onto the parent cq child list */ | |
10218 | list_add_tail(&wq->list, &cq->child_list); | |
10219 | out: | |
8fa38513 | 10220 | mempool_free(mbox, phba->mbox_mem_pool); |
4f774513 JS |
10221 | return status; |
10222 | } | |
10223 | ||
10224 | /** | |
10225 | * lpfc_rq_create - Create a Receive Queue on the HBA | |
10226 | * @phba: HBA structure that indicates port to create a queue on. | |
10227 | * @hrq: The queue structure to use to create the header receive queue. | |
10228 | * @drq: The queue structure to use to create the data receive queue. | |
10229 | * @cq: The completion queue to bind this work queue to. | |
10230 | * | |
10231 | * This function creates a receive buffer queue pair , as detailed in @hrq and | |
10232 | * @drq, on a port, described by @phba by sending a RQ_CREATE mailbox command | |
10233 | * to the HBA. | |
10234 | * | |
10235 | * The @phba struct is used to send mailbox command to HBA. The @drq and @hrq | |
10236 | * struct is used to get the entry count that is necessary to determine the | |
10237 | * number of pages to use for this queue. The @cq is used to indicate which | |
10238 | * completion queue to bind received buffers that are posted to these queues to. | |
10239 | * This function will send the RQ_CREATE mailbox command to the HBA to setup the | |
10240 | * receive queue pair. This function is asynchronous and will wait for the | |
10241 | * mailbox command to finish before continuing. | |
10242 | * | |
10243 | * On success this function will return a zero. If unable to allocate enough | |
d439d286 JS |
10244 | * memory this function will return -ENOMEM. If the queue create mailbox command |
10245 | * fails this function will return -ENXIO. | |
4f774513 JS |
10246 | **/ |
10247 | uint32_t | |
10248 | lpfc_rq_create(struct lpfc_hba *phba, struct lpfc_queue *hrq, | |
10249 | struct lpfc_queue *drq, struct lpfc_queue *cq, uint32_t subtype) | |
10250 | { | |
10251 | struct lpfc_mbx_rq_create *rq_create; | |
10252 | struct lpfc_dmabuf *dmabuf; | |
10253 | LPFC_MBOXQ_t *mbox; | |
10254 | int rc, length, status = 0; | |
10255 | uint32_t shdr_status, shdr_add_status; | |
10256 | union lpfc_sli4_cfg_shdr *shdr; | |
49198b37 JS |
10257 | uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz; |
10258 | ||
10259 | if (!phba->sli4_hba.pc_sli4_params.supported) | |
10260 | hw_page_size = SLI4_PAGE_SIZE; | |
4f774513 JS |
10261 | |
10262 | if (hrq->entry_count != drq->entry_count) | |
10263 | return -EINVAL; | |
10264 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
10265 | if (!mbox) | |
10266 | return -ENOMEM; | |
10267 | length = (sizeof(struct lpfc_mbx_rq_create) - | |
10268 | sizeof(struct lpfc_sli4_cfg_mhdr)); | |
10269 | lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE, | |
10270 | LPFC_MBOX_OPCODE_FCOE_RQ_CREATE, | |
10271 | length, LPFC_SLI4_MBX_EMBED); | |
10272 | rq_create = &mbox->u.mqe.un.rq_create; | |
10273 | switch (hrq->entry_count) { | |
10274 | default: | |
10275 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
10276 | "2535 Unsupported RQ count. (%d)\n", | |
10277 | hrq->entry_count); | |
10278 | if (hrq->entry_count < 512) | |
10279 | return -EINVAL; | |
10280 | /* otherwise default to smallest count (drop through) */ | |
10281 | case 512: | |
10282 | bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context, | |
10283 | LPFC_RQ_RING_SIZE_512); | |
10284 | break; | |
10285 | case 1024: | |
10286 | bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context, | |
10287 | LPFC_RQ_RING_SIZE_1024); | |
10288 | break; | |
10289 | case 2048: | |
10290 | bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context, | |
10291 | LPFC_RQ_RING_SIZE_2048); | |
10292 | break; | |
10293 | case 4096: | |
10294 | bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context, | |
10295 | LPFC_RQ_RING_SIZE_4096); | |
10296 | break; | |
10297 | } | |
10298 | bf_set(lpfc_rq_context_cq_id, &rq_create->u.request.context, | |
10299 | cq->queue_id); | |
10300 | bf_set(lpfc_mbx_rq_create_num_pages, &rq_create->u.request, | |
10301 | hrq->page_count); | |
10302 | bf_set(lpfc_rq_context_buf_size, &rq_create->u.request.context, | |
10303 | LPFC_HDR_BUF_SIZE); | |
10304 | list_for_each_entry(dmabuf, &hrq->page_list, list) { | |
49198b37 | 10305 | memset(dmabuf->virt, 0, hw_page_size); |
4f774513 JS |
10306 | rq_create->u.request.page[dmabuf->buffer_tag].addr_lo = |
10307 | putPaddrLow(dmabuf->phys); | |
10308 | rq_create->u.request.page[dmabuf->buffer_tag].addr_hi = | |
10309 | putPaddrHigh(dmabuf->phys); | |
10310 | } | |
10311 | rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL); | |
10312 | /* The IOCTL status is embedded in the mailbox subheader. */ | |
10313 | shdr = (union lpfc_sli4_cfg_shdr *) &rq_create->header.cfg_shdr; | |
10314 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); | |
10315 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); | |
10316 | if (shdr_status || shdr_add_status || rc) { | |
10317 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
10318 | "2504 RQ_CREATE mailbox failed with " | |
10319 | "status x%x add_status x%x, mbx status x%x\n", | |
10320 | shdr_status, shdr_add_status, rc); | |
10321 | status = -ENXIO; | |
10322 | goto out; | |
10323 | } | |
10324 | hrq->queue_id = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response); | |
10325 | if (hrq->queue_id == 0xFFFF) { | |
10326 | status = -ENXIO; | |
10327 | goto out; | |
10328 | } | |
10329 | hrq->type = LPFC_HRQ; | |
10330 | hrq->subtype = subtype; | |
10331 | hrq->host_index = 0; | |
10332 | hrq->hba_index = 0; | |
10333 | ||
10334 | /* now create the data queue */ | |
10335 | lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE, | |
10336 | LPFC_MBOX_OPCODE_FCOE_RQ_CREATE, | |
10337 | length, LPFC_SLI4_MBX_EMBED); | |
10338 | switch (drq->entry_count) { | |
10339 | default: | |
10340 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
10341 | "2536 Unsupported RQ count. (%d)\n", | |
10342 | drq->entry_count); | |
10343 | if (drq->entry_count < 512) | |
10344 | return -EINVAL; | |
10345 | /* otherwise default to smallest count (drop through) */ | |
10346 | case 512: | |
10347 | bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context, | |
10348 | LPFC_RQ_RING_SIZE_512); | |
10349 | break; | |
10350 | case 1024: | |
10351 | bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context, | |
10352 | LPFC_RQ_RING_SIZE_1024); | |
10353 | break; | |
10354 | case 2048: | |
10355 | bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context, | |
10356 | LPFC_RQ_RING_SIZE_2048); | |
10357 | break; | |
10358 | case 4096: | |
10359 | bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context, | |
10360 | LPFC_RQ_RING_SIZE_4096); | |
10361 | break; | |
10362 | } | |
10363 | bf_set(lpfc_rq_context_cq_id, &rq_create->u.request.context, | |
10364 | cq->queue_id); | |
10365 | bf_set(lpfc_mbx_rq_create_num_pages, &rq_create->u.request, | |
10366 | drq->page_count); | |
10367 | bf_set(lpfc_rq_context_buf_size, &rq_create->u.request.context, | |
10368 | LPFC_DATA_BUF_SIZE); | |
10369 | list_for_each_entry(dmabuf, &drq->page_list, list) { | |
10370 | rq_create->u.request.page[dmabuf->buffer_tag].addr_lo = | |
10371 | putPaddrLow(dmabuf->phys); | |
10372 | rq_create->u.request.page[dmabuf->buffer_tag].addr_hi = | |
10373 | putPaddrHigh(dmabuf->phys); | |
10374 | } | |
10375 | rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL); | |
10376 | /* The IOCTL status is embedded in the mailbox subheader. */ | |
10377 | shdr = (union lpfc_sli4_cfg_shdr *) &rq_create->header.cfg_shdr; | |
10378 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); | |
10379 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); | |
10380 | if (shdr_status || shdr_add_status || rc) { | |
10381 | status = -ENXIO; | |
10382 | goto out; | |
10383 | } | |
10384 | drq->queue_id = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response); | |
10385 | if (drq->queue_id == 0xFFFF) { | |
10386 | status = -ENXIO; | |
10387 | goto out; | |
10388 | } | |
10389 | drq->type = LPFC_DRQ; | |
10390 | drq->subtype = subtype; | |
10391 | drq->host_index = 0; | |
10392 | drq->hba_index = 0; | |
10393 | ||
10394 | /* link the header and data RQs onto the parent cq child list */ | |
10395 | list_add_tail(&hrq->list, &cq->child_list); | |
10396 | list_add_tail(&drq->list, &cq->child_list); | |
10397 | ||
10398 | out: | |
8fa38513 | 10399 | mempool_free(mbox, phba->mbox_mem_pool); |
4f774513 JS |
10400 | return status; |
10401 | } | |
10402 | ||
10403 | /** | |
10404 | * lpfc_eq_destroy - Destroy an event Queue on the HBA | |
10405 | * @eq: The queue structure associated with the queue to destroy. | |
10406 | * | |
10407 | * This function destroys a queue, as detailed in @eq by sending an mailbox | |
10408 | * command, specific to the type of queue, to the HBA. | |
10409 | * | |
10410 | * The @eq struct is used to get the queue ID of the queue to destroy. | |
10411 | * | |
10412 | * On success this function will return a zero. If the queue destroy mailbox | |
d439d286 | 10413 | * command fails this function will return -ENXIO. |
4f774513 JS |
10414 | **/ |
10415 | uint32_t | |
10416 | lpfc_eq_destroy(struct lpfc_hba *phba, struct lpfc_queue *eq) | |
10417 | { | |
10418 | LPFC_MBOXQ_t *mbox; | |
10419 | int rc, length, status = 0; | |
10420 | uint32_t shdr_status, shdr_add_status; | |
10421 | union lpfc_sli4_cfg_shdr *shdr; | |
10422 | ||
10423 | if (!eq) | |
10424 | return -ENODEV; | |
10425 | mbox = mempool_alloc(eq->phba->mbox_mem_pool, GFP_KERNEL); | |
10426 | if (!mbox) | |
10427 | return -ENOMEM; | |
10428 | length = (sizeof(struct lpfc_mbx_eq_destroy) - | |
10429 | sizeof(struct lpfc_sli4_cfg_mhdr)); | |
10430 | lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON, | |
10431 | LPFC_MBOX_OPCODE_EQ_DESTROY, | |
10432 | length, LPFC_SLI4_MBX_EMBED); | |
10433 | bf_set(lpfc_mbx_eq_destroy_q_id, &mbox->u.mqe.un.eq_destroy.u.request, | |
10434 | eq->queue_id); | |
10435 | mbox->vport = eq->phba->pport; | |
10436 | mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
10437 | ||
10438 | rc = lpfc_sli_issue_mbox(eq->phba, mbox, MBX_POLL); | |
10439 | /* The IOCTL status is embedded in the mailbox subheader. */ | |
10440 | shdr = (union lpfc_sli4_cfg_shdr *) | |
10441 | &mbox->u.mqe.un.eq_destroy.header.cfg_shdr; | |
10442 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); | |
10443 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); | |
10444 | if (shdr_status || shdr_add_status || rc) { | |
10445 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
10446 | "2505 EQ_DESTROY mailbox failed with " | |
10447 | "status x%x add_status x%x, mbx status x%x\n", | |
10448 | shdr_status, shdr_add_status, rc); | |
10449 | status = -ENXIO; | |
10450 | } | |
10451 | ||
10452 | /* Remove eq from any list */ | |
10453 | list_del_init(&eq->list); | |
8fa38513 | 10454 | mempool_free(mbox, eq->phba->mbox_mem_pool); |
4f774513 JS |
10455 | return status; |
10456 | } | |
10457 | ||
10458 | /** | |
10459 | * lpfc_cq_destroy - Destroy a Completion Queue on the HBA | |
10460 | * @cq: The queue structure associated with the queue to destroy. | |
10461 | * | |
10462 | * This function destroys a queue, as detailed in @cq by sending an mailbox | |
10463 | * command, specific to the type of queue, to the HBA. | |
10464 | * | |
10465 | * The @cq struct is used to get the queue ID of the queue to destroy. | |
10466 | * | |
10467 | * On success this function will return a zero. If the queue destroy mailbox | |
d439d286 | 10468 | * command fails this function will return -ENXIO. |
4f774513 JS |
10469 | **/ |
10470 | uint32_t | |
10471 | lpfc_cq_destroy(struct lpfc_hba *phba, struct lpfc_queue *cq) | |
10472 | { | |
10473 | LPFC_MBOXQ_t *mbox; | |
10474 | int rc, length, status = 0; | |
10475 | uint32_t shdr_status, shdr_add_status; | |
10476 | union lpfc_sli4_cfg_shdr *shdr; | |
10477 | ||
10478 | if (!cq) | |
10479 | return -ENODEV; | |
10480 | mbox = mempool_alloc(cq->phba->mbox_mem_pool, GFP_KERNEL); | |
10481 | if (!mbox) | |
10482 | return -ENOMEM; | |
10483 | length = (sizeof(struct lpfc_mbx_cq_destroy) - | |
10484 | sizeof(struct lpfc_sli4_cfg_mhdr)); | |
10485 | lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON, | |
10486 | LPFC_MBOX_OPCODE_CQ_DESTROY, | |
10487 | length, LPFC_SLI4_MBX_EMBED); | |
10488 | bf_set(lpfc_mbx_cq_destroy_q_id, &mbox->u.mqe.un.cq_destroy.u.request, | |
10489 | cq->queue_id); | |
10490 | mbox->vport = cq->phba->pport; | |
10491 | mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
10492 | rc = lpfc_sli_issue_mbox(cq->phba, mbox, MBX_POLL); | |
10493 | /* The IOCTL status is embedded in the mailbox subheader. */ | |
10494 | shdr = (union lpfc_sli4_cfg_shdr *) | |
10495 | &mbox->u.mqe.un.wq_create.header.cfg_shdr; | |
10496 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); | |
10497 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); | |
10498 | if (shdr_status || shdr_add_status || rc) { | |
10499 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
10500 | "2506 CQ_DESTROY mailbox failed with " | |
10501 | "status x%x add_status x%x, mbx status x%x\n", | |
10502 | shdr_status, shdr_add_status, rc); | |
10503 | status = -ENXIO; | |
10504 | } | |
10505 | /* Remove cq from any list */ | |
10506 | list_del_init(&cq->list); | |
8fa38513 | 10507 | mempool_free(mbox, cq->phba->mbox_mem_pool); |
4f774513 JS |
10508 | return status; |
10509 | } | |
10510 | ||
04c68496 JS |
10511 | /** |
10512 | * lpfc_mq_destroy - Destroy a Mailbox Queue on the HBA | |
10513 | * @qm: The queue structure associated with the queue to destroy. | |
10514 | * | |
10515 | * This function destroys a queue, as detailed in @mq by sending an mailbox | |
10516 | * command, specific to the type of queue, to the HBA. | |
10517 | * | |
10518 | * The @mq struct is used to get the queue ID of the queue to destroy. | |
10519 | * | |
10520 | * On success this function will return a zero. If the queue destroy mailbox | |
d439d286 | 10521 | * command fails this function will return -ENXIO. |
04c68496 JS |
10522 | **/ |
10523 | uint32_t | |
10524 | lpfc_mq_destroy(struct lpfc_hba *phba, struct lpfc_queue *mq) | |
10525 | { | |
10526 | LPFC_MBOXQ_t *mbox; | |
10527 | int rc, length, status = 0; | |
10528 | uint32_t shdr_status, shdr_add_status; | |
10529 | union lpfc_sli4_cfg_shdr *shdr; | |
10530 | ||
10531 | if (!mq) | |
10532 | return -ENODEV; | |
10533 | mbox = mempool_alloc(mq->phba->mbox_mem_pool, GFP_KERNEL); | |
10534 | if (!mbox) | |
10535 | return -ENOMEM; | |
10536 | length = (sizeof(struct lpfc_mbx_mq_destroy) - | |
10537 | sizeof(struct lpfc_sli4_cfg_mhdr)); | |
10538 | lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON, | |
10539 | LPFC_MBOX_OPCODE_MQ_DESTROY, | |
10540 | length, LPFC_SLI4_MBX_EMBED); | |
10541 | bf_set(lpfc_mbx_mq_destroy_q_id, &mbox->u.mqe.un.mq_destroy.u.request, | |
10542 | mq->queue_id); | |
10543 | mbox->vport = mq->phba->pport; | |
10544 | mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
10545 | rc = lpfc_sli_issue_mbox(mq->phba, mbox, MBX_POLL); | |
10546 | /* The IOCTL status is embedded in the mailbox subheader. */ | |
10547 | shdr = (union lpfc_sli4_cfg_shdr *) | |
10548 | &mbox->u.mqe.un.mq_destroy.header.cfg_shdr; | |
10549 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); | |
10550 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); | |
10551 | if (shdr_status || shdr_add_status || rc) { | |
10552 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
10553 | "2507 MQ_DESTROY mailbox failed with " | |
10554 | "status x%x add_status x%x, mbx status x%x\n", | |
10555 | shdr_status, shdr_add_status, rc); | |
10556 | status = -ENXIO; | |
10557 | } | |
10558 | /* Remove mq from any list */ | |
10559 | list_del_init(&mq->list); | |
8fa38513 | 10560 | mempool_free(mbox, mq->phba->mbox_mem_pool); |
04c68496 JS |
10561 | return status; |
10562 | } | |
10563 | ||
4f774513 JS |
10564 | /** |
10565 | * lpfc_wq_destroy - Destroy a Work Queue on the HBA | |
10566 | * @wq: The queue structure associated with the queue to destroy. | |
10567 | * | |
10568 | * This function destroys a queue, as detailed in @wq by sending an mailbox | |
10569 | * command, specific to the type of queue, to the HBA. | |
10570 | * | |
10571 | * The @wq struct is used to get the queue ID of the queue to destroy. | |
10572 | * | |
10573 | * On success this function will return a zero. If the queue destroy mailbox | |
d439d286 | 10574 | * command fails this function will return -ENXIO. |
4f774513 JS |
10575 | **/ |
10576 | uint32_t | |
10577 | lpfc_wq_destroy(struct lpfc_hba *phba, struct lpfc_queue *wq) | |
10578 | { | |
10579 | LPFC_MBOXQ_t *mbox; | |
10580 | int rc, length, status = 0; | |
10581 | uint32_t shdr_status, shdr_add_status; | |
10582 | union lpfc_sli4_cfg_shdr *shdr; | |
10583 | ||
10584 | if (!wq) | |
10585 | return -ENODEV; | |
10586 | mbox = mempool_alloc(wq->phba->mbox_mem_pool, GFP_KERNEL); | |
10587 | if (!mbox) | |
10588 | return -ENOMEM; | |
10589 | length = (sizeof(struct lpfc_mbx_wq_destroy) - | |
10590 | sizeof(struct lpfc_sli4_cfg_mhdr)); | |
10591 | lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE, | |
10592 | LPFC_MBOX_OPCODE_FCOE_WQ_DESTROY, | |
10593 | length, LPFC_SLI4_MBX_EMBED); | |
10594 | bf_set(lpfc_mbx_wq_destroy_q_id, &mbox->u.mqe.un.wq_destroy.u.request, | |
10595 | wq->queue_id); | |
10596 | mbox->vport = wq->phba->pport; | |
10597 | mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
10598 | rc = lpfc_sli_issue_mbox(wq->phba, mbox, MBX_POLL); | |
10599 | shdr = (union lpfc_sli4_cfg_shdr *) | |
10600 | &mbox->u.mqe.un.wq_destroy.header.cfg_shdr; | |
10601 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); | |
10602 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); | |
10603 | if (shdr_status || shdr_add_status || rc) { | |
10604 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
10605 | "2508 WQ_DESTROY mailbox failed with " | |
10606 | "status x%x add_status x%x, mbx status x%x\n", | |
10607 | shdr_status, shdr_add_status, rc); | |
10608 | status = -ENXIO; | |
10609 | } | |
10610 | /* Remove wq from any list */ | |
10611 | list_del_init(&wq->list); | |
8fa38513 | 10612 | mempool_free(mbox, wq->phba->mbox_mem_pool); |
4f774513 JS |
10613 | return status; |
10614 | } | |
10615 | ||
10616 | /** | |
10617 | * lpfc_rq_destroy - Destroy a Receive Queue on the HBA | |
10618 | * @rq: The queue structure associated with the queue to destroy. | |
10619 | * | |
10620 | * This function destroys a queue, as detailed in @rq by sending an mailbox | |
10621 | * command, specific to the type of queue, to the HBA. | |
10622 | * | |
10623 | * The @rq struct is used to get the queue ID of the queue to destroy. | |
10624 | * | |
10625 | * On success this function will return a zero. If the queue destroy mailbox | |
d439d286 | 10626 | * command fails this function will return -ENXIO. |
4f774513 JS |
10627 | **/ |
10628 | uint32_t | |
10629 | lpfc_rq_destroy(struct lpfc_hba *phba, struct lpfc_queue *hrq, | |
10630 | struct lpfc_queue *drq) | |
10631 | { | |
10632 | LPFC_MBOXQ_t *mbox; | |
10633 | int rc, length, status = 0; | |
10634 | uint32_t shdr_status, shdr_add_status; | |
10635 | union lpfc_sli4_cfg_shdr *shdr; | |
10636 | ||
10637 | if (!hrq || !drq) | |
10638 | return -ENODEV; | |
10639 | mbox = mempool_alloc(hrq->phba->mbox_mem_pool, GFP_KERNEL); | |
10640 | if (!mbox) | |
10641 | return -ENOMEM; | |
10642 | length = (sizeof(struct lpfc_mbx_rq_destroy) - | |
10643 | sizeof(struct mbox_header)); | |
10644 | lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE, | |
10645 | LPFC_MBOX_OPCODE_FCOE_RQ_DESTROY, | |
10646 | length, LPFC_SLI4_MBX_EMBED); | |
10647 | bf_set(lpfc_mbx_rq_destroy_q_id, &mbox->u.mqe.un.rq_destroy.u.request, | |
10648 | hrq->queue_id); | |
10649 | mbox->vport = hrq->phba->pport; | |
10650 | mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
10651 | rc = lpfc_sli_issue_mbox(hrq->phba, mbox, MBX_POLL); | |
10652 | /* The IOCTL status is embedded in the mailbox subheader. */ | |
10653 | shdr = (union lpfc_sli4_cfg_shdr *) | |
10654 | &mbox->u.mqe.un.rq_destroy.header.cfg_shdr; | |
10655 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); | |
10656 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); | |
10657 | if (shdr_status || shdr_add_status || rc) { | |
10658 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
10659 | "2509 RQ_DESTROY mailbox failed with " | |
10660 | "status x%x add_status x%x, mbx status x%x\n", | |
10661 | shdr_status, shdr_add_status, rc); | |
10662 | if (rc != MBX_TIMEOUT) | |
10663 | mempool_free(mbox, hrq->phba->mbox_mem_pool); | |
10664 | return -ENXIO; | |
10665 | } | |
10666 | bf_set(lpfc_mbx_rq_destroy_q_id, &mbox->u.mqe.un.rq_destroy.u.request, | |
10667 | drq->queue_id); | |
10668 | rc = lpfc_sli_issue_mbox(drq->phba, mbox, MBX_POLL); | |
10669 | shdr = (union lpfc_sli4_cfg_shdr *) | |
10670 | &mbox->u.mqe.un.rq_destroy.header.cfg_shdr; | |
10671 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); | |
10672 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); | |
10673 | if (shdr_status || shdr_add_status || rc) { | |
10674 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
10675 | "2510 RQ_DESTROY mailbox failed with " | |
10676 | "status x%x add_status x%x, mbx status x%x\n", | |
10677 | shdr_status, shdr_add_status, rc); | |
10678 | status = -ENXIO; | |
10679 | } | |
10680 | list_del_init(&hrq->list); | |
10681 | list_del_init(&drq->list); | |
8fa38513 | 10682 | mempool_free(mbox, hrq->phba->mbox_mem_pool); |
4f774513 JS |
10683 | return status; |
10684 | } | |
10685 | ||
10686 | /** | |
10687 | * lpfc_sli4_post_sgl - Post scatter gather list for an XRI to HBA | |
10688 | * @phba: The virtual port for which this call being executed. | |
10689 | * @pdma_phys_addr0: Physical address of the 1st SGL page. | |
10690 | * @pdma_phys_addr1: Physical address of the 2nd SGL page. | |
10691 | * @xritag: the xritag that ties this io to the SGL pages. | |
10692 | * | |
10693 | * This routine will post the sgl pages for the IO that has the xritag | |
10694 | * that is in the iocbq structure. The xritag is assigned during iocbq | |
10695 | * creation and persists for as long as the driver is loaded. | |
10696 | * if the caller has fewer than 256 scatter gather segments to map then | |
10697 | * pdma_phys_addr1 should be 0. | |
10698 | * If the caller needs to map more than 256 scatter gather segment then | |
10699 | * pdma_phys_addr1 should be a valid physical address. | |
10700 | * physical address for SGLs must be 64 byte aligned. | |
10701 | * If you are going to map 2 SGL's then the first one must have 256 entries | |
10702 | * the second sgl can have between 1 and 256 entries. | |
10703 | * | |
10704 | * Return codes: | |
10705 | * 0 - Success | |
10706 | * -ENXIO, -ENOMEM - Failure | |
10707 | **/ | |
10708 | int | |
10709 | lpfc_sli4_post_sgl(struct lpfc_hba *phba, | |
10710 | dma_addr_t pdma_phys_addr0, | |
10711 | dma_addr_t pdma_phys_addr1, | |
10712 | uint16_t xritag) | |
10713 | { | |
10714 | struct lpfc_mbx_post_sgl_pages *post_sgl_pages; | |
10715 | LPFC_MBOXQ_t *mbox; | |
10716 | int rc; | |
10717 | uint32_t shdr_status, shdr_add_status; | |
10718 | union lpfc_sli4_cfg_shdr *shdr; | |
10719 | ||
10720 | if (xritag == NO_XRI) { | |
10721 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
10722 | "0364 Invalid param:\n"); | |
10723 | return -EINVAL; | |
10724 | } | |
10725 | ||
10726 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
10727 | if (!mbox) | |
10728 | return -ENOMEM; | |
10729 | ||
10730 | lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE, | |
10731 | LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES, | |
10732 | sizeof(struct lpfc_mbx_post_sgl_pages) - | |
10733 | sizeof(struct mbox_header), LPFC_SLI4_MBX_EMBED); | |
10734 | ||
10735 | post_sgl_pages = (struct lpfc_mbx_post_sgl_pages *) | |
10736 | &mbox->u.mqe.un.post_sgl_pages; | |
10737 | bf_set(lpfc_post_sgl_pages_xri, post_sgl_pages, xritag); | |
10738 | bf_set(lpfc_post_sgl_pages_xricnt, post_sgl_pages, 1); | |
10739 | ||
10740 | post_sgl_pages->sgl_pg_pairs[0].sgl_pg0_addr_lo = | |
10741 | cpu_to_le32(putPaddrLow(pdma_phys_addr0)); | |
10742 | post_sgl_pages->sgl_pg_pairs[0].sgl_pg0_addr_hi = | |
10743 | cpu_to_le32(putPaddrHigh(pdma_phys_addr0)); | |
10744 | ||
10745 | post_sgl_pages->sgl_pg_pairs[0].sgl_pg1_addr_lo = | |
10746 | cpu_to_le32(putPaddrLow(pdma_phys_addr1)); | |
10747 | post_sgl_pages->sgl_pg_pairs[0].sgl_pg1_addr_hi = | |
10748 | cpu_to_le32(putPaddrHigh(pdma_phys_addr1)); | |
10749 | if (!phba->sli4_hba.intr_enable) | |
10750 | rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL); | |
10751 | else | |
10752 | rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO); | |
10753 | /* The IOCTL status is embedded in the mailbox subheader. */ | |
10754 | shdr = (union lpfc_sli4_cfg_shdr *) &post_sgl_pages->header.cfg_shdr; | |
10755 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); | |
10756 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); | |
10757 | if (rc != MBX_TIMEOUT) | |
10758 | mempool_free(mbox, phba->mbox_mem_pool); | |
10759 | if (shdr_status || shdr_add_status || rc) { | |
10760 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
10761 | "2511 POST_SGL mailbox failed with " | |
10762 | "status x%x add_status x%x, mbx status x%x\n", | |
10763 | shdr_status, shdr_add_status, rc); | |
10764 | rc = -ENXIO; | |
10765 | } | |
10766 | return 0; | |
10767 | } | |
10768 | /** | |
10769 | * lpfc_sli4_remove_all_sgl_pages - Post scatter gather list for an XRI to HBA | |
10770 | * @phba: The virtual port for which this call being executed. | |
10771 | * | |
10772 | * This routine will remove all of the sgl pages registered with the hba. | |
10773 | * | |
10774 | * Return codes: | |
10775 | * 0 - Success | |
10776 | * -ENXIO, -ENOMEM - Failure | |
10777 | **/ | |
10778 | int | |
10779 | lpfc_sli4_remove_all_sgl_pages(struct lpfc_hba *phba) | |
10780 | { | |
10781 | LPFC_MBOXQ_t *mbox; | |
10782 | int rc; | |
10783 | uint32_t shdr_status, shdr_add_status; | |
10784 | union lpfc_sli4_cfg_shdr *shdr; | |
10785 | ||
10786 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
10787 | if (!mbox) | |
10788 | return -ENOMEM; | |
10789 | ||
10790 | lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE, | |
10791 | LPFC_MBOX_OPCODE_FCOE_REMOVE_SGL_PAGES, 0, | |
10792 | LPFC_SLI4_MBX_EMBED); | |
10793 | if (!phba->sli4_hba.intr_enable) | |
10794 | rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL); | |
10795 | else | |
10796 | rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO); | |
10797 | /* The IOCTL status is embedded in the mailbox subheader. */ | |
10798 | shdr = (union lpfc_sli4_cfg_shdr *) | |
10799 | &mbox->u.mqe.un.sli4_config.header.cfg_shdr; | |
10800 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); | |
10801 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); | |
10802 | if (rc != MBX_TIMEOUT) | |
10803 | mempool_free(mbox, phba->mbox_mem_pool); | |
10804 | if (shdr_status || shdr_add_status || rc) { | |
10805 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
10806 | "2512 REMOVE_ALL_SGL_PAGES mailbox failed with " | |
10807 | "status x%x add_status x%x, mbx status x%x\n", | |
10808 | shdr_status, shdr_add_status, rc); | |
10809 | rc = -ENXIO; | |
10810 | } | |
10811 | return rc; | |
10812 | } | |
10813 | ||
10814 | /** | |
10815 | * lpfc_sli4_next_xritag - Get an xritag for the io | |
10816 | * @phba: Pointer to HBA context object. | |
10817 | * | |
10818 | * This function gets an xritag for the iocb. If there is no unused xritag | |
10819 | * it will return 0xffff. | |
10820 | * The function returns the allocated xritag if successful, else returns zero. | |
10821 | * Zero is not a valid xritag. | |
10822 | * The caller is not required to hold any lock. | |
10823 | **/ | |
10824 | uint16_t | |
10825 | lpfc_sli4_next_xritag(struct lpfc_hba *phba) | |
10826 | { | |
10827 | uint16_t xritag; | |
10828 | ||
10829 | spin_lock_irq(&phba->hbalock); | |
10830 | xritag = phba->sli4_hba.next_xri; | |
10831 | if ((xritag != (uint16_t) -1) && xritag < | |
10832 | (phba->sli4_hba.max_cfg_param.max_xri | |
10833 | + phba->sli4_hba.max_cfg_param.xri_base)) { | |
10834 | phba->sli4_hba.next_xri++; | |
10835 | phba->sli4_hba.max_cfg_param.xri_used++; | |
10836 | spin_unlock_irq(&phba->hbalock); | |
10837 | return xritag; | |
10838 | } | |
10839 | spin_unlock_irq(&phba->hbalock); | |
6a9c52cf | 10840 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, |
4f774513 JS |
10841 | "2004 Failed to allocate XRI.last XRITAG is %d" |
10842 | " Max XRI is %d, Used XRI is %d\n", | |
10843 | phba->sli4_hba.next_xri, | |
10844 | phba->sli4_hba.max_cfg_param.max_xri, | |
10845 | phba->sli4_hba.max_cfg_param.xri_used); | |
10846 | return -1; | |
10847 | } | |
10848 | ||
10849 | /** | |
10850 | * lpfc_sli4_post_sgl_list - post a block of sgl list to the firmware. | |
10851 | * @phba: pointer to lpfc hba data structure. | |
10852 | * | |
10853 | * This routine is invoked to post a block of driver's sgl pages to the | |
10854 | * HBA using non-embedded mailbox command. No Lock is held. This routine | |
10855 | * is only called when the driver is loading and after all IO has been | |
10856 | * stopped. | |
10857 | **/ | |
10858 | int | |
10859 | lpfc_sli4_post_sgl_list(struct lpfc_hba *phba) | |
10860 | { | |
10861 | struct lpfc_sglq *sglq_entry; | |
10862 | struct lpfc_mbx_post_uembed_sgl_page1 *sgl; | |
10863 | struct sgl_page_pairs *sgl_pg_pairs; | |
10864 | void *viraddr; | |
10865 | LPFC_MBOXQ_t *mbox; | |
10866 | uint32_t reqlen, alloclen, pg_pairs; | |
10867 | uint32_t mbox_tmo; | |
10868 | uint16_t xritag_start = 0; | |
10869 | int els_xri_cnt, rc = 0; | |
10870 | uint32_t shdr_status, shdr_add_status; | |
10871 | union lpfc_sli4_cfg_shdr *shdr; | |
10872 | ||
10873 | /* The number of sgls to be posted */ | |
10874 | els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba); | |
10875 | ||
10876 | reqlen = els_xri_cnt * sizeof(struct sgl_page_pairs) + | |
10877 | sizeof(union lpfc_sli4_cfg_shdr) + sizeof(uint32_t); | |
49198b37 | 10878 | if (reqlen > SLI4_PAGE_SIZE) { |
4f774513 JS |
10879 | lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, |
10880 | "2559 Block sgl registration required DMA " | |
10881 | "size (%d) great than a page\n", reqlen); | |
10882 | return -ENOMEM; | |
10883 | } | |
10884 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
10885 | if (!mbox) { | |
10886 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
10887 | "2560 Failed to allocate mbox cmd memory\n"); | |
10888 | return -ENOMEM; | |
10889 | } | |
10890 | ||
10891 | /* Allocate DMA memory and set up the non-embedded mailbox command */ | |
10892 | alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE, | |
10893 | LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES, reqlen, | |
10894 | LPFC_SLI4_MBX_NEMBED); | |
10895 | ||
10896 | if (alloclen < reqlen) { | |
10897 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
10898 | "0285 Allocated DMA memory size (%d) is " | |
10899 | "less than the requested DMA memory " | |
10900 | "size (%d)\n", alloclen, reqlen); | |
10901 | lpfc_sli4_mbox_cmd_free(phba, mbox); | |
10902 | return -ENOMEM; | |
10903 | } | |
4f774513 | 10904 | /* Get the first SGE entry from the non-embedded DMA memory */ |
4f774513 JS |
10905 | viraddr = mbox->sge_array->addr[0]; |
10906 | ||
10907 | /* Set up the SGL pages in the non-embedded DMA pages */ | |
10908 | sgl = (struct lpfc_mbx_post_uembed_sgl_page1 *)viraddr; | |
10909 | sgl_pg_pairs = &sgl->sgl_pg_pairs; | |
10910 | ||
10911 | for (pg_pairs = 0; pg_pairs < els_xri_cnt; pg_pairs++) { | |
10912 | sglq_entry = phba->sli4_hba.lpfc_els_sgl_array[pg_pairs]; | |
10913 | /* Set up the sge entry */ | |
10914 | sgl_pg_pairs->sgl_pg0_addr_lo = | |
10915 | cpu_to_le32(putPaddrLow(sglq_entry->phys)); | |
10916 | sgl_pg_pairs->sgl_pg0_addr_hi = | |
10917 | cpu_to_le32(putPaddrHigh(sglq_entry->phys)); | |
10918 | sgl_pg_pairs->sgl_pg1_addr_lo = | |
10919 | cpu_to_le32(putPaddrLow(0)); | |
10920 | sgl_pg_pairs->sgl_pg1_addr_hi = | |
10921 | cpu_to_le32(putPaddrHigh(0)); | |
10922 | /* Keep the first xritag on the list */ | |
10923 | if (pg_pairs == 0) | |
10924 | xritag_start = sglq_entry->sli4_xritag; | |
10925 | sgl_pg_pairs++; | |
10926 | } | |
10927 | bf_set(lpfc_post_sgl_pages_xri, sgl, xritag_start); | |
6a9c52cf | 10928 | bf_set(lpfc_post_sgl_pages_xricnt, sgl, els_xri_cnt); |
4f774513 JS |
10929 | /* Perform endian conversion if necessary */ |
10930 | sgl->word0 = cpu_to_le32(sgl->word0); | |
10931 | ||
10932 | if (!phba->sli4_hba.intr_enable) | |
10933 | rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL); | |
10934 | else { | |
10935 | mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG); | |
10936 | rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo); | |
10937 | } | |
10938 | shdr = (union lpfc_sli4_cfg_shdr *) &sgl->cfg_shdr; | |
10939 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); | |
10940 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); | |
10941 | if (rc != MBX_TIMEOUT) | |
10942 | lpfc_sli4_mbox_cmd_free(phba, mbox); | |
10943 | if (shdr_status || shdr_add_status || rc) { | |
10944 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
10945 | "2513 POST_SGL_BLOCK mailbox command failed " | |
10946 | "status x%x add_status x%x mbx status x%x\n", | |
10947 | shdr_status, shdr_add_status, rc); | |
10948 | rc = -ENXIO; | |
10949 | } | |
10950 | return rc; | |
10951 | } | |
10952 | ||
10953 | /** | |
10954 | * lpfc_sli4_post_scsi_sgl_block - post a block of scsi sgl list to firmware | |
10955 | * @phba: pointer to lpfc hba data structure. | |
10956 | * @sblist: pointer to scsi buffer list. | |
10957 | * @count: number of scsi buffers on the list. | |
10958 | * | |
10959 | * This routine is invoked to post a block of @count scsi sgl pages from a | |
10960 | * SCSI buffer list @sblist to the HBA using non-embedded mailbox command. | |
10961 | * No Lock is held. | |
10962 | * | |
10963 | **/ | |
10964 | int | |
10965 | lpfc_sli4_post_scsi_sgl_block(struct lpfc_hba *phba, struct list_head *sblist, | |
10966 | int cnt) | |
10967 | { | |
10968 | struct lpfc_scsi_buf *psb; | |
10969 | struct lpfc_mbx_post_uembed_sgl_page1 *sgl; | |
10970 | struct sgl_page_pairs *sgl_pg_pairs; | |
10971 | void *viraddr; | |
10972 | LPFC_MBOXQ_t *mbox; | |
10973 | uint32_t reqlen, alloclen, pg_pairs; | |
10974 | uint32_t mbox_tmo; | |
10975 | uint16_t xritag_start = 0; | |
10976 | int rc = 0; | |
10977 | uint32_t shdr_status, shdr_add_status; | |
10978 | dma_addr_t pdma_phys_bpl1; | |
10979 | union lpfc_sli4_cfg_shdr *shdr; | |
10980 | ||
10981 | /* Calculate the requested length of the dma memory */ | |
10982 | reqlen = cnt * sizeof(struct sgl_page_pairs) + | |
10983 | sizeof(union lpfc_sli4_cfg_shdr) + sizeof(uint32_t); | |
49198b37 | 10984 | if (reqlen > SLI4_PAGE_SIZE) { |
4f774513 JS |
10985 | lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, |
10986 | "0217 Block sgl registration required DMA " | |
10987 | "size (%d) great than a page\n", reqlen); | |
10988 | return -ENOMEM; | |
10989 | } | |
10990 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
10991 | if (!mbox) { | |
10992 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
10993 | "0283 Failed to allocate mbox cmd memory\n"); | |
10994 | return -ENOMEM; | |
10995 | } | |
10996 | ||
10997 | /* Allocate DMA memory and set up the non-embedded mailbox command */ | |
10998 | alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE, | |
10999 | LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES, reqlen, | |
11000 | LPFC_SLI4_MBX_NEMBED); | |
11001 | ||
11002 | if (alloclen < reqlen) { | |
11003 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
11004 | "2561 Allocated DMA memory size (%d) is " | |
11005 | "less than the requested DMA memory " | |
11006 | "size (%d)\n", alloclen, reqlen); | |
11007 | lpfc_sli4_mbox_cmd_free(phba, mbox); | |
11008 | return -ENOMEM; | |
11009 | } | |
4f774513 | 11010 | /* Get the first SGE entry from the non-embedded DMA memory */ |
4f774513 JS |
11011 | viraddr = mbox->sge_array->addr[0]; |
11012 | ||
11013 | /* Set up the SGL pages in the non-embedded DMA pages */ | |
11014 | sgl = (struct lpfc_mbx_post_uembed_sgl_page1 *)viraddr; | |
11015 | sgl_pg_pairs = &sgl->sgl_pg_pairs; | |
11016 | ||
11017 | pg_pairs = 0; | |
11018 | list_for_each_entry(psb, sblist, list) { | |
11019 | /* Set up the sge entry */ | |
11020 | sgl_pg_pairs->sgl_pg0_addr_lo = | |
11021 | cpu_to_le32(putPaddrLow(psb->dma_phys_bpl)); | |
11022 | sgl_pg_pairs->sgl_pg0_addr_hi = | |
11023 | cpu_to_le32(putPaddrHigh(psb->dma_phys_bpl)); | |
11024 | if (phba->cfg_sg_dma_buf_size > SGL_PAGE_SIZE) | |
11025 | pdma_phys_bpl1 = psb->dma_phys_bpl + SGL_PAGE_SIZE; | |
11026 | else | |
11027 | pdma_phys_bpl1 = 0; | |
11028 | sgl_pg_pairs->sgl_pg1_addr_lo = | |
11029 | cpu_to_le32(putPaddrLow(pdma_phys_bpl1)); | |
11030 | sgl_pg_pairs->sgl_pg1_addr_hi = | |
11031 | cpu_to_le32(putPaddrHigh(pdma_phys_bpl1)); | |
11032 | /* Keep the first xritag on the list */ | |
11033 | if (pg_pairs == 0) | |
11034 | xritag_start = psb->cur_iocbq.sli4_xritag; | |
11035 | sgl_pg_pairs++; | |
11036 | pg_pairs++; | |
11037 | } | |
11038 | bf_set(lpfc_post_sgl_pages_xri, sgl, xritag_start); | |
11039 | bf_set(lpfc_post_sgl_pages_xricnt, sgl, pg_pairs); | |
11040 | /* Perform endian conversion if necessary */ | |
11041 | sgl->word0 = cpu_to_le32(sgl->word0); | |
11042 | ||
11043 | if (!phba->sli4_hba.intr_enable) | |
11044 | rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL); | |
11045 | else { | |
11046 | mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG); | |
11047 | rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo); | |
11048 | } | |
11049 | shdr = (union lpfc_sli4_cfg_shdr *) &sgl->cfg_shdr; | |
11050 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); | |
11051 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); | |
11052 | if (rc != MBX_TIMEOUT) | |
11053 | lpfc_sli4_mbox_cmd_free(phba, mbox); | |
11054 | if (shdr_status || shdr_add_status || rc) { | |
11055 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
11056 | "2564 POST_SGL_BLOCK mailbox command failed " | |
11057 | "status x%x add_status x%x mbx status x%x\n", | |
11058 | shdr_status, shdr_add_status, rc); | |
11059 | rc = -ENXIO; | |
11060 | } | |
11061 | return rc; | |
11062 | } | |
11063 | ||
11064 | /** | |
11065 | * lpfc_fc_frame_check - Check that this frame is a valid frame to handle | |
11066 | * @phba: pointer to lpfc_hba struct that the frame was received on | |
11067 | * @fc_hdr: A pointer to the FC Header data (In Big Endian Format) | |
11068 | * | |
11069 | * This function checks the fields in the @fc_hdr to see if the FC frame is a | |
11070 | * valid type of frame that the LPFC driver will handle. This function will | |
11071 | * return a zero if the frame is a valid frame or a non zero value when the | |
11072 | * frame does not pass the check. | |
11073 | **/ | |
11074 | static int | |
11075 | lpfc_fc_frame_check(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr) | |
11076 | { | |
11077 | char *rctl_names[] = FC_RCTL_NAMES_INIT; | |
11078 | char *type_names[] = FC_TYPE_NAMES_INIT; | |
11079 | struct fc_vft_header *fc_vft_hdr; | |
11080 | ||
11081 | switch (fc_hdr->fh_r_ctl) { | |
11082 | case FC_RCTL_DD_UNCAT: /* uncategorized information */ | |
11083 | case FC_RCTL_DD_SOL_DATA: /* solicited data */ | |
11084 | case FC_RCTL_DD_UNSOL_CTL: /* unsolicited control */ | |
11085 | case FC_RCTL_DD_SOL_CTL: /* solicited control or reply */ | |
11086 | case FC_RCTL_DD_UNSOL_DATA: /* unsolicited data */ | |
11087 | case FC_RCTL_DD_DATA_DESC: /* data descriptor */ | |
11088 | case FC_RCTL_DD_UNSOL_CMD: /* unsolicited command */ | |
11089 | case FC_RCTL_DD_CMD_STATUS: /* command status */ | |
11090 | case FC_RCTL_ELS_REQ: /* extended link services request */ | |
11091 | case FC_RCTL_ELS_REP: /* extended link services reply */ | |
11092 | case FC_RCTL_ELS4_REQ: /* FC-4 ELS request */ | |
11093 | case FC_RCTL_ELS4_REP: /* FC-4 ELS reply */ | |
11094 | case FC_RCTL_BA_NOP: /* basic link service NOP */ | |
11095 | case FC_RCTL_BA_ABTS: /* basic link service abort */ | |
11096 | case FC_RCTL_BA_RMC: /* remove connection */ | |
11097 | case FC_RCTL_BA_ACC: /* basic accept */ | |
11098 | case FC_RCTL_BA_RJT: /* basic reject */ | |
11099 | case FC_RCTL_BA_PRMT: | |
11100 | case FC_RCTL_ACK_1: /* acknowledge_1 */ | |
11101 | case FC_RCTL_ACK_0: /* acknowledge_0 */ | |
11102 | case FC_RCTL_P_RJT: /* port reject */ | |
11103 | case FC_RCTL_F_RJT: /* fabric reject */ | |
11104 | case FC_RCTL_P_BSY: /* port busy */ | |
11105 | case FC_RCTL_F_BSY: /* fabric busy to data frame */ | |
11106 | case FC_RCTL_F_BSYL: /* fabric busy to link control frame */ | |
11107 | case FC_RCTL_LCR: /* link credit reset */ | |
11108 | case FC_RCTL_END: /* end */ | |
11109 | break; | |
11110 | case FC_RCTL_VFTH: /* Virtual Fabric tagging Header */ | |
11111 | fc_vft_hdr = (struct fc_vft_header *)fc_hdr; | |
11112 | fc_hdr = &((struct fc_frame_header *)fc_vft_hdr)[1]; | |
11113 | return lpfc_fc_frame_check(phba, fc_hdr); | |
11114 | default: | |
11115 | goto drop; | |
11116 | } | |
11117 | switch (fc_hdr->fh_type) { | |
11118 | case FC_TYPE_BLS: | |
11119 | case FC_TYPE_ELS: | |
11120 | case FC_TYPE_FCP: | |
11121 | case FC_TYPE_CT: | |
11122 | break; | |
11123 | case FC_TYPE_IP: | |
11124 | case FC_TYPE_ILS: | |
11125 | default: | |
11126 | goto drop; | |
11127 | } | |
11128 | lpfc_printf_log(phba, KERN_INFO, LOG_ELS, | |
11129 | "2538 Received frame rctl:%s type:%s\n", | |
11130 | rctl_names[fc_hdr->fh_r_ctl], | |
11131 | type_names[fc_hdr->fh_type]); | |
11132 | return 0; | |
11133 | drop: | |
11134 | lpfc_printf_log(phba, KERN_WARNING, LOG_ELS, | |
11135 | "2539 Dropped frame rctl:%s type:%s\n", | |
11136 | rctl_names[fc_hdr->fh_r_ctl], | |
11137 | type_names[fc_hdr->fh_type]); | |
11138 | return 1; | |
11139 | } | |
11140 | ||
11141 | /** | |
11142 | * lpfc_fc_hdr_get_vfi - Get the VFI from an FC frame | |
11143 | * @fc_hdr: A pointer to the FC Header data (In Big Endian Format) | |
11144 | * | |
11145 | * This function processes the FC header to retrieve the VFI from the VF | |
11146 | * header, if one exists. This function will return the VFI if one exists | |
11147 | * or 0 if no VSAN Header exists. | |
11148 | **/ | |
11149 | static uint32_t | |
11150 | lpfc_fc_hdr_get_vfi(struct fc_frame_header *fc_hdr) | |
11151 | { | |
11152 | struct fc_vft_header *fc_vft_hdr = (struct fc_vft_header *)fc_hdr; | |
11153 | ||
11154 | if (fc_hdr->fh_r_ctl != FC_RCTL_VFTH) | |
11155 | return 0; | |
11156 | return bf_get(fc_vft_hdr_vf_id, fc_vft_hdr); | |
11157 | } | |
11158 | ||
11159 | /** | |
11160 | * lpfc_fc_frame_to_vport - Finds the vport that a frame is destined to | |
11161 | * @phba: Pointer to the HBA structure to search for the vport on | |
11162 | * @fc_hdr: A pointer to the FC Header data (In Big Endian Format) | |
11163 | * @fcfi: The FC Fabric ID that the frame came from | |
11164 | * | |
11165 | * This function searches the @phba for a vport that matches the content of the | |
11166 | * @fc_hdr passed in and the @fcfi. This function uses the @fc_hdr to fetch the | |
11167 | * VFI, if the Virtual Fabric Tagging Header exists, and the DID. This function | |
11168 | * returns the matching vport pointer or NULL if unable to match frame to a | |
11169 | * vport. | |
11170 | **/ | |
11171 | static struct lpfc_vport * | |
11172 | lpfc_fc_frame_to_vport(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr, | |
11173 | uint16_t fcfi) | |
11174 | { | |
11175 | struct lpfc_vport **vports; | |
11176 | struct lpfc_vport *vport = NULL; | |
11177 | int i; | |
11178 | uint32_t did = (fc_hdr->fh_d_id[0] << 16 | | |
11179 | fc_hdr->fh_d_id[1] << 8 | | |
11180 | fc_hdr->fh_d_id[2]); | |
11181 | ||
11182 | vports = lpfc_create_vport_work_array(phba); | |
11183 | if (vports != NULL) | |
11184 | for (i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) { | |
11185 | if (phba->fcf.fcfi == fcfi && | |
11186 | vports[i]->vfi == lpfc_fc_hdr_get_vfi(fc_hdr) && | |
11187 | vports[i]->fc_myDID == did) { | |
11188 | vport = vports[i]; | |
11189 | break; | |
11190 | } | |
11191 | } | |
11192 | lpfc_destroy_vport_work_array(phba, vports); | |
11193 | return vport; | |
11194 | } | |
11195 | ||
45ed1190 JS |
11196 | /** |
11197 | * lpfc_update_rcv_time_stamp - Update vport's rcv seq time stamp | |
11198 | * @vport: The vport to work on. | |
11199 | * | |
11200 | * This function updates the receive sequence time stamp for this vport. The | |
11201 | * receive sequence time stamp indicates the time that the last frame of the | |
11202 | * the sequence that has been idle for the longest amount of time was received. | |
11203 | * the driver uses this time stamp to indicate if any received sequences have | |
11204 | * timed out. | |
11205 | **/ | |
11206 | void | |
11207 | lpfc_update_rcv_time_stamp(struct lpfc_vport *vport) | |
11208 | { | |
11209 | struct lpfc_dmabuf *h_buf; | |
11210 | struct hbq_dmabuf *dmabuf = NULL; | |
11211 | ||
11212 | /* get the oldest sequence on the rcv list */ | |
11213 | h_buf = list_get_first(&vport->rcv_buffer_list, | |
11214 | struct lpfc_dmabuf, list); | |
11215 | if (!h_buf) | |
11216 | return; | |
11217 | dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf); | |
11218 | vport->rcv_buffer_time_stamp = dmabuf->time_stamp; | |
11219 | } | |
11220 | ||
11221 | /** | |
11222 | * lpfc_cleanup_rcv_buffers - Cleans up all outstanding receive sequences. | |
11223 | * @vport: The vport that the received sequences were sent to. | |
11224 | * | |
11225 | * This function cleans up all outstanding received sequences. This is called | |
11226 | * by the driver when a link event or user action invalidates all the received | |
11227 | * sequences. | |
11228 | **/ | |
11229 | void | |
11230 | lpfc_cleanup_rcv_buffers(struct lpfc_vport *vport) | |
11231 | { | |
11232 | struct lpfc_dmabuf *h_buf, *hnext; | |
11233 | struct lpfc_dmabuf *d_buf, *dnext; | |
11234 | struct hbq_dmabuf *dmabuf = NULL; | |
11235 | ||
11236 | /* start with the oldest sequence on the rcv list */ | |
11237 | list_for_each_entry_safe(h_buf, hnext, &vport->rcv_buffer_list, list) { | |
11238 | dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf); | |
11239 | list_del_init(&dmabuf->hbuf.list); | |
11240 | list_for_each_entry_safe(d_buf, dnext, | |
11241 | &dmabuf->dbuf.list, list) { | |
11242 | list_del_init(&d_buf->list); | |
11243 | lpfc_in_buf_free(vport->phba, d_buf); | |
11244 | } | |
11245 | lpfc_in_buf_free(vport->phba, &dmabuf->dbuf); | |
11246 | } | |
11247 | } | |
11248 | ||
11249 | /** | |
11250 | * lpfc_rcv_seq_check_edtov - Cleans up timed out receive sequences. | |
11251 | * @vport: The vport that the received sequences were sent to. | |
11252 | * | |
11253 | * This function determines whether any received sequences have timed out by | |
11254 | * first checking the vport's rcv_buffer_time_stamp. If this time_stamp | |
11255 | * indicates that there is at least one timed out sequence this routine will | |
11256 | * go through the received sequences one at a time from most inactive to most | |
11257 | * active to determine which ones need to be cleaned up. Once it has determined | |
11258 | * that a sequence needs to be cleaned up it will simply free up the resources | |
11259 | * without sending an abort. | |
11260 | **/ | |
11261 | void | |
11262 | lpfc_rcv_seq_check_edtov(struct lpfc_vport *vport) | |
11263 | { | |
11264 | struct lpfc_dmabuf *h_buf, *hnext; | |
11265 | struct lpfc_dmabuf *d_buf, *dnext; | |
11266 | struct hbq_dmabuf *dmabuf = NULL; | |
11267 | unsigned long timeout; | |
11268 | int abort_count = 0; | |
11269 | ||
11270 | timeout = (msecs_to_jiffies(vport->phba->fc_edtov) + | |
11271 | vport->rcv_buffer_time_stamp); | |
11272 | if (list_empty(&vport->rcv_buffer_list) || | |
11273 | time_before(jiffies, timeout)) | |
11274 | return; | |
11275 | /* start with the oldest sequence on the rcv list */ | |
11276 | list_for_each_entry_safe(h_buf, hnext, &vport->rcv_buffer_list, list) { | |
11277 | dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf); | |
11278 | timeout = (msecs_to_jiffies(vport->phba->fc_edtov) + | |
11279 | dmabuf->time_stamp); | |
11280 | if (time_before(jiffies, timeout)) | |
11281 | break; | |
11282 | abort_count++; | |
11283 | list_del_init(&dmabuf->hbuf.list); | |
11284 | list_for_each_entry_safe(d_buf, dnext, | |
11285 | &dmabuf->dbuf.list, list) { | |
11286 | list_del_init(&d_buf->list); | |
11287 | lpfc_in_buf_free(vport->phba, d_buf); | |
11288 | } | |
11289 | lpfc_in_buf_free(vport->phba, &dmabuf->dbuf); | |
11290 | } | |
11291 | if (abort_count) | |
11292 | lpfc_update_rcv_time_stamp(vport); | |
11293 | } | |
11294 | ||
4f774513 JS |
11295 | /** |
11296 | * lpfc_fc_frame_add - Adds a frame to the vport's list of received sequences | |
11297 | * @dmabuf: pointer to a dmabuf that describes the hdr and data of the FC frame | |
11298 | * | |
11299 | * This function searches through the existing incomplete sequences that have | |
11300 | * been sent to this @vport. If the frame matches one of the incomplete | |
11301 | * sequences then the dbuf in the @dmabuf is added to the list of frames that | |
11302 | * make up that sequence. If no sequence is found that matches this frame then | |
11303 | * the function will add the hbuf in the @dmabuf to the @vport's rcv_buffer_list | |
11304 | * This function returns a pointer to the first dmabuf in the sequence list that | |
11305 | * the frame was linked to. | |
11306 | **/ | |
11307 | static struct hbq_dmabuf * | |
11308 | lpfc_fc_frame_add(struct lpfc_vport *vport, struct hbq_dmabuf *dmabuf) | |
11309 | { | |
11310 | struct fc_frame_header *new_hdr; | |
11311 | struct fc_frame_header *temp_hdr; | |
11312 | struct lpfc_dmabuf *d_buf; | |
11313 | struct lpfc_dmabuf *h_buf; | |
11314 | struct hbq_dmabuf *seq_dmabuf = NULL; | |
11315 | struct hbq_dmabuf *temp_dmabuf = NULL; | |
11316 | ||
4d9ab994 | 11317 | INIT_LIST_HEAD(&dmabuf->dbuf.list); |
45ed1190 | 11318 | dmabuf->time_stamp = jiffies; |
4f774513 JS |
11319 | new_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt; |
11320 | /* Use the hdr_buf to find the sequence that this frame belongs to */ | |
11321 | list_for_each_entry(h_buf, &vport->rcv_buffer_list, list) { | |
11322 | temp_hdr = (struct fc_frame_header *)h_buf->virt; | |
11323 | if ((temp_hdr->fh_seq_id != new_hdr->fh_seq_id) || | |
11324 | (temp_hdr->fh_ox_id != new_hdr->fh_ox_id) || | |
11325 | (memcmp(&temp_hdr->fh_s_id, &new_hdr->fh_s_id, 3))) | |
11326 | continue; | |
11327 | /* found a pending sequence that matches this frame */ | |
11328 | seq_dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf); | |
11329 | break; | |
11330 | } | |
11331 | if (!seq_dmabuf) { | |
11332 | /* | |
11333 | * This indicates first frame received for this sequence. | |
11334 | * Queue the buffer on the vport's rcv_buffer_list. | |
11335 | */ | |
11336 | list_add_tail(&dmabuf->hbuf.list, &vport->rcv_buffer_list); | |
45ed1190 | 11337 | lpfc_update_rcv_time_stamp(vport); |
4f774513 JS |
11338 | return dmabuf; |
11339 | } | |
11340 | temp_hdr = seq_dmabuf->hbuf.virt; | |
eeead811 JS |
11341 | if (be16_to_cpu(new_hdr->fh_seq_cnt) < |
11342 | be16_to_cpu(temp_hdr->fh_seq_cnt)) { | |
4d9ab994 JS |
11343 | list_del_init(&seq_dmabuf->hbuf.list); |
11344 | list_add_tail(&dmabuf->hbuf.list, &vport->rcv_buffer_list); | |
11345 | list_add_tail(&dmabuf->dbuf.list, &seq_dmabuf->dbuf.list); | |
45ed1190 | 11346 | lpfc_update_rcv_time_stamp(vport); |
4f774513 JS |
11347 | return dmabuf; |
11348 | } | |
45ed1190 JS |
11349 | /* move this sequence to the tail to indicate a young sequence */ |
11350 | list_move_tail(&seq_dmabuf->hbuf.list, &vport->rcv_buffer_list); | |
11351 | seq_dmabuf->time_stamp = jiffies; | |
11352 | lpfc_update_rcv_time_stamp(vport); | |
eeead811 JS |
11353 | if (list_empty(&seq_dmabuf->dbuf.list)) { |
11354 | temp_hdr = dmabuf->hbuf.virt; | |
11355 | list_add_tail(&dmabuf->dbuf.list, &seq_dmabuf->dbuf.list); | |
11356 | return seq_dmabuf; | |
11357 | } | |
4f774513 JS |
11358 | /* find the correct place in the sequence to insert this frame */ |
11359 | list_for_each_entry_reverse(d_buf, &seq_dmabuf->dbuf.list, list) { | |
11360 | temp_dmabuf = container_of(d_buf, struct hbq_dmabuf, dbuf); | |
11361 | temp_hdr = (struct fc_frame_header *)temp_dmabuf->hbuf.virt; | |
11362 | /* | |
11363 | * If the frame's sequence count is greater than the frame on | |
11364 | * the list then insert the frame right after this frame | |
11365 | */ | |
eeead811 JS |
11366 | if (be16_to_cpu(new_hdr->fh_seq_cnt) > |
11367 | be16_to_cpu(temp_hdr->fh_seq_cnt)) { | |
4f774513 JS |
11368 | list_add(&dmabuf->dbuf.list, &temp_dmabuf->dbuf.list); |
11369 | return seq_dmabuf; | |
11370 | } | |
11371 | } | |
11372 | return NULL; | |
11373 | } | |
11374 | ||
6669f9bb JS |
11375 | /** |
11376 | * lpfc_sli4_abort_partial_seq - Abort partially assembled unsol sequence | |
11377 | * @vport: pointer to a vitural port | |
11378 | * @dmabuf: pointer to a dmabuf that describes the FC sequence | |
11379 | * | |
11380 | * This function tries to abort from the partially assembed sequence, described | |
11381 | * by the information from basic abbort @dmabuf. It checks to see whether such | |
11382 | * partially assembled sequence held by the driver. If so, it shall free up all | |
11383 | * the frames from the partially assembled sequence. | |
11384 | * | |
11385 | * Return | |
11386 | * true -- if there is matching partially assembled sequence present and all | |
11387 | * the frames freed with the sequence; | |
11388 | * false -- if there is no matching partially assembled sequence present so | |
11389 | * nothing got aborted in the lower layer driver | |
11390 | **/ | |
11391 | static bool | |
11392 | lpfc_sli4_abort_partial_seq(struct lpfc_vport *vport, | |
11393 | struct hbq_dmabuf *dmabuf) | |
11394 | { | |
11395 | struct fc_frame_header *new_hdr; | |
11396 | struct fc_frame_header *temp_hdr; | |
11397 | struct lpfc_dmabuf *d_buf, *n_buf, *h_buf; | |
11398 | struct hbq_dmabuf *seq_dmabuf = NULL; | |
11399 | ||
11400 | /* Use the hdr_buf to find the sequence that matches this frame */ | |
11401 | INIT_LIST_HEAD(&dmabuf->dbuf.list); | |
11402 | INIT_LIST_HEAD(&dmabuf->hbuf.list); | |
11403 | new_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt; | |
11404 | list_for_each_entry(h_buf, &vport->rcv_buffer_list, list) { | |
11405 | temp_hdr = (struct fc_frame_header *)h_buf->virt; | |
11406 | if ((temp_hdr->fh_seq_id != new_hdr->fh_seq_id) || | |
11407 | (temp_hdr->fh_ox_id != new_hdr->fh_ox_id) || | |
11408 | (memcmp(&temp_hdr->fh_s_id, &new_hdr->fh_s_id, 3))) | |
11409 | continue; | |
11410 | /* found a pending sequence that matches this frame */ | |
11411 | seq_dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf); | |
11412 | break; | |
11413 | } | |
11414 | ||
11415 | /* Free up all the frames from the partially assembled sequence */ | |
11416 | if (seq_dmabuf) { | |
11417 | list_for_each_entry_safe(d_buf, n_buf, | |
11418 | &seq_dmabuf->dbuf.list, list) { | |
11419 | list_del_init(&d_buf->list); | |
11420 | lpfc_in_buf_free(vport->phba, d_buf); | |
11421 | } | |
11422 | return true; | |
11423 | } | |
11424 | return false; | |
11425 | } | |
11426 | ||
11427 | /** | |
11428 | * lpfc_sli4_seq_abort_acc_cmpl - Accept seq abort iocb complete handler | |
11429 | * @phba: Pointer to HBA context object. | |
11430 | * @cmd_iocbq: pointer to the command iocbq structure. | |
11431 | * @rsp_iocbq: pointer to the response iocbq structure. | |
11432 | * | |
11433 | * This function handles the sequence abort accept iocb command complete | |
11434 | * event. It properly releases the memory allocated to the sequence abort | |
11435 | * accept iocb. | |
11436 | **/ | |
11437 | static void | |
11438 | lpfc_sli4_seq_abort_acc_cmpl(struct lpfc_hba *phba, | |
11439 | struct lpfc_iocbq *cmd_iocbq, | |
11440 | struct lpfc_iocbq *rsp_iocbq) | |
11441 | { | |
11442 | if (cmd_iocbq) | |
11443 | lpfc_sli_release_iocbq(phba, cmd_iocbq); | |
11444 | } | |
11445 | ||
11446 | /** | |
11447 | * lpfc_sli4_seq_abort_acc - Accept sequence abort | |
11448 | * @phba: Pointer to HBA context object. | |
11449 | * @fc_hdr: pointer to a FC frame header. | |
11450 | * | |
11451 | * This function sends a basic accept to a previous unsol sequence abort | |
11452 | * event after aborting the sequence handling. | |
11453 | **/ | |
11454 | static void | |
11455 | lpfc_sli4_seq_abort_acc(struct lpfc_hba *phba, | |
11456 | struct fc_frame_header *fc_hdr) | |
11457 | { | |
11458 | struct lpfc_iocbq *ctiocb = NULL; | |
11459 | struct lpfc_nodelist *ndlp; | |
5ffc266e JS |
11460 | uint16_t oxid, rxid; |
11461 | uint32_t sid, fctl; | |
6669f9bb JS |
11462 | IOCB_t *icmd; |
11463 | ||
11464 | if (!lpfc_is_link_up(phba)) | |
11465 | return; | |
11466 | ||
11467 | sid = sli4_sid_from_fc_hdr(fc_hdr); | |
11468 | oxid = be16_to_cpu(fc_hdr->fh_ox_id); | |
5ffc266e | 11469 | rxid = be16_to_cpu(fc_hdr->fh_rx_id); |
6669f9bb JS |
11470 | |
11471 | ndlp = lpfc_findnode_did(phba->pport, sid); | |
11472 | if (!ndlp) { | |
11473 | lpfc_printf_log(phba, KERN_WARNING, LOG_ELS, | |
11474 | "1268 Find ndlp returned NULL for oxid:x%x " | |
11475 | "SID:x%x\n", oxid, sid); | |
11476 | return; | |
11477 | } | |
11478 | ||
11479 | /* Allocate buffer for acc iocb */ | |
11480 | ctiocb = lpfc_sli_get_iocbq(phba); | |
11481 | if (!ctiocb) | |
11482 | return; | |
11483 | ||
5ffc266e JS |
11484 | /* Extract the F_CTL field from FC_HDR */ |
11485 | fctl = sli4_fctl_from_fc_hdr(fc_hdr); | |
11486 | ||
6669f9bb | 11487 | icmd = &ctiocb->iocb; |
6669f9bb | 11488 | icmd->un.xseq64.bdl.bdeSize = 0; |
5ffc266e | 11489 | icmd->un.xseq64.bdl.ulpIoTag32 = 0; |
6669f9bb JS |
11490 | icmd->un.xseq64.w5.hcsw.Dfctl = 0; |
11491 | icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_BA_ACC; | |
11492 | icmd->un.xseq64.w5.hcsw.Type = FC_TYPE_BLS; | |
11493 | ||
11494 | /* Fill in the rest of iocb fields */ | |
11495 | icmd->ulpCommand = CMD_XMIT_BLS_RSP64_CX; | |
11496 | icmd->ulpBdeCount = 0; | |
11497 | icmd->ulpLe = 1; | |
11498 | icmd->ulpClass = CLASS3; | |
11499 | icmd->ulpContext = ndlp->nlp_rpi; | |
6669f9bb | 11500 | |
6669f9bb JS |
11501 | ctiocb->iocb_cmpl = NULL; |
11502 | ctiocb->vport = phba->pport; | |
11503 | ctiocb->iocb_cmpl = lpfc_sli4_seq_abort_acc_cmpl; | |
11504 | ||
5ffc266e JS |
11505 | if (fctl & FC_FC_EX_CTX) { |
11506 | /* ABTS sent by responder to CT exchange, construction | |
11507 | * of BA_ACC will use OX_ID from ABTS for the XRI_TAG | |
11508 | * field and RX_ID from ABTS for RX_ID field. | |
11509 | */ | |
11510 | bf_set(lpfc_abts_orig, &icmd->un.bls_acc, LPFC_ABTS_UNSOL_RSP); | |
11511 | bf_set(lpfc_abts_rxid, &icmd->un.bls_acc, rxid); | |
11512 | ctiocb->sli4_xritag = oxid; | |
11513 | } else { | |
11514 | /* ABTS sent by initiator to CT exchange, construction | |
11515 | * of BA_ACC will need to allocate a new XRI as for the | |
11516 | * XRI_TAG and RX_ID fields. | |
11517 | */ | |
11518 | bf_set(lpfc_abts_orig, &icmd->un.bls_acc, LPFC_ABTS_UNSOL_INT); | |
11519 | bf_set(lpfc_abts_rxid, &icmd->un.bls_acc, NO_XRI); | |
11520 | ctiocb->sli4_xritag = NO_XRI; | |
11521 | } | |
11522 | bf_set(lpfc_abts_oxid, &icmd->un.bls_acc, oxid); | |
11523 | ||
6669f9bb JS |
11524 | /* Xmit CT abts accept on exchange <xid> */ |
11525 | lpfc_printf_log(phba, KERN_INFO, LOG_ELS, | |
11526 | "1200 Xmit CT ABTS ACC on exchange x%x Data: x%x\n", | |
11527 | CMD_XMIT_BLS_RSP64_CX, phba->link_state); | |
11528 | lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, ctiocb, 0); | |
11529 | } | |
11530 | ||
11531 | /** | |
11532 | * lpfc_sli4_handle_unsol_abort - Handle sli-4 unsolicited abort event | |
11533 | * @vport: Pointer to the vport on which this sequence was received | |
11534 | * @dmabuf: pointer to a dmabuf that describes the FC sequence | |
11535 | * | |
11536 | * This function handles an SLI-4 unsolicited abort event. If the unsolicited | |
11537 | * receive sequence is only partially assembed by the driver, it shall abort | |
11538 | * the partially assembled frames for the sequence. Otherwise, if the | |
11539 | * unsolicited receive sequence has been completely assembled and passed to | |
11540 | * the Upper Layer Protocol (UPL), it then mark the per oxid status for the | |
11541 | * unsolicited sequence has been aborted. After that, it will issue a basic | |
11542 | * accept to accept the abort. | |
11543 | **/ | |
11544 | void | |
11545 | lpfc_sli4_handle_unsol_abort(struct lpfc_vport *vport, | |
11546 | struct hbq_dmabuf *dmabuf) | |
11547 | { | |
11548 | struct lpfc_hba *phba = vport->phba; | |
11549 | struct fc_frame_header fc_hdr; | |
5ffc266e | 11550 | uint32_t fctl; |
6669f9bb JS |
11551 | bool abts_par; |
11552 | ||
6669f9bb JS |
11553 | /* Make a copy of fc_hdr before the dmabuf being released */ |
11554 | memcpy(&fc_hdr, dmabuf->hbuf.virt, sizeof(struct fc_frame_header)); | |
5ffc266e | 11555 | fctl = sli4_fctl_from_fc_hdr(&fc_hdr); |
6669f9bb | 11556 | |
5ffc266e JS |
11557 | if (fctl & FC_FC_EX_CTX) { |
11558 | /* | |
11559 | * ABTS sent by responder to exchange, just free the buffer | |
11560 | */ | |
6669f9bb | 11561 | lpfc_in_buf_free(phba, &dmabuf->dbuf); |
5ffc266e JS |
11562 | } else { |
11563 | /* | |
11564 | * ABTS sent by initiator to exchange, need to do cleanup | |
11565 | */ | |
11566 | /* Try to abort partially assembled seq */ | |
11567 | abts_par = lpfc_sli4_abort_partial_seq(vport, dmabuf); | |
11568 | ||
11569 | /* Send abort to ULP if partially seq abort failed */ | |
11570 | if (abts_par == false) | |
11571 | lpfc_sli4_send_seq_to_ulp(vport, dmabuf); | |
11572 | else | |
11573 | lpfc_in_buf_free(phba, &dmabuf->dbuf); | |
11574 | } | |
6669f9bb JS |
11575 | /* Send basic accept (BA_ACC) to the abort requester */ |
11576 | lpfc_sli4_seq_abort_acc(phba, &fc_hdr); | |
11577 | } | |
11578 | ||
4f774513 JS |
11579 | /** |
11580 | * lpfc_seq_complete - Indicates if a sequence is complete | |
11581 | * @dmabuf: pointer to a dmabuf that describes the FC sequence | |
11582 | * | |
11583 | * This function checks the sequence, starting with the frame described by | |
11584 | * @dmabuf, to see if all the frames associated with this sequence are present. | |
11585 | * the frames associated with this sequence are linked to the @dmabuf using the | |
11586 | * dbuf list. This function looks for two major things. 1) That the first frame | |
11587 | * has a sequence count of zero. 2) There is a frame with last frame of sequence | |
11588 | * set. 3) That there are no holes in the sequence count. The function will | |
11589 | * return 1 when the sequence is complete, otherwise it will return 0. | |
11590 | **/ | |
11591 | static int | |
11592 | lpfc_seq_complete(struct hbq_dmabuf *dmabuf) | |
11593 | { | |
11594 | struct fc_frame_header *hdr; | |
11595 | struct lpfc_dmabuf *d_buf; | |
11596 | struct hbq_dmabuf *seq_dmabuf; | |
11597 | uint32_t fctl; | |
11598 | int seq_count = 0; | |
11599 | ||
11600 | hdr = (struct fc_frame_header *)dmabuf->hbuf.virt; | |
11601 | /* make sure first fame of sequence has a sequence count of zero */ | |
11602 | if (hdr->fh_seq_cnt != seq_count) | |
11603 | return 0; | |
11604 | fctl = (hdr->fh_f_ctl[0] << 16 | | |
11605 | hdr->fh_f_ctl[1] << 8 | | |
11606 | hdr->fh_f_ctl[2]); | |
11607 | /* If last frame of sequence we can return success. */ | |
11608 | if (fctl & FC_FC_END_SEQ) | |
11609 | return 1; | |
11610 | list_for_each_entry(d_buf, &dmabuf->dbuf.list, list) { | |
11611 | seq_dmabuf = container_of(d_buf, struct hbq_dmabuf, dbuf); | |
11612 | hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt; | |
11613 | /* If there is a hole in the sequence count then fail. */ | |
eeead811 | 11614 | if (++seq_count != be16_to_cpu(hdr->fh_seq_cnt)) |
4f774513 JS |
11615 | return 0; |
11616 | fctl = (hdr->fh_f_ctl[0] << 16 | | |
11617 | hdr->fh_f_ctl[1] << 8 | | |
11618 | hdr->fh_f_ctl[2]); | |
11619 | /* If last frame of sequence we can return success. */ | |
11620 | if (fctl & FC_FC_END_SEQ) | |
11621 | return 1; | |
11622 | } | |
11623 | return 0; | |
11624 | } | |
11625 | ||
11626 | /** | |
11627 | * lpfc_prep_seq - Prep sequence for ULP processing | |
11628 | * @vport: Pointer to the vport on which this sequence was received | |
11629 | * @dmabuf: pointer to a dmabuf that describes the FC sequence | |
11630 | * | |
11631 | * This function takes a sequence, described by a list of frames, and creates | |
11632 | * a list of iocbq structures to describe the sequence. This iocbq list will be | |
11633 | * used to issue to the generic unsolicited sequence handler. This routine | |
11634 | * returns a pointer to the first iocbq in the list. If the function is unable | |
11635 | * to allocate an iocbq then it throw out the received frames that were not | |
11636 | * able to be described and return a pointer to the first iocbq. If unable to | |
11637 | * allocate any iocbqs (including the first) this function will return NULL. | |
11638 | **/ | |
11639 | static struct lpfc_iocbq * | |
11640 | lpfc_prep_seq(struct lpfc_vport *vport, struct hbq_dmabuf *seq_dmabuf) | |
11641 | { | |
11642 | struct lpfc_dmabuf *d_buf, *n_buf; | |
11643 | struct lpfc_iocbq *first_iocbq, *iocbq; | |
11644 | struct fc_frame_header *fc_hdr; | |
11645 | uint32_t sid; | |
eeead811 | 11646 | struct ulp_bde64 *pbde; |
4f774513 JS |
11647 | |
11648 | fc_hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt; | |
11649 | /* remove from receive buffer list */ | |
11650 | list_del_init(&seq_dmabuf->hbuf.list); | |
45ed1190 | 11651 | lpfc_update_rcv_time_stamp(vport); |
4f774513 | 11652 | /* get the Remote Port's SID */ |
6669f9bb | 11653 | sid = sli4_sid_from_fc_hdr(fc_hdr); |
4f774513 JS |
11654 | /* Get an iocbq struct to fill in. */ |
11655 | first_iocbq = lpfc_sli_get_iocbq(vport->phba); | |
11656 | if (first_iocbq) { | |
11657 | /* Initialize the first IOCB. */ | |
8fa38513 | 11658 | first_iocbq->iocb.unsli3.rcvsli3.acc_len = 0; |
4f774513 JS |
11659 | first_iocbq->iocb.ulpStatus = IOSTAT_SUCCESS; |
11660 | first_iocbq->iocb.ulpCommand = CMD_IOCB_RCV_SEQ64_CX; | |
11661 | first_iocbq->iocb.ulpContext = be16_to_cpu(fc_hdr->fh_ox_id); | |
11662 | first_iocbq->iocb.unsli3.rcvsli3.vpi = | |
11663 | vport->vpi + vport->phba->vpi_base; | |
11664 | /* put the first buffer into the first IOCBq */ | |
11665 | first_iocbq->context2 = &seq_dmabuf->dbuf; | |
11666 | first_iocbq->context3 = NULL; | |
11667 | first_iocbq->iocb.ulpBdeCount = 1; | |
11668 | first_iocbq->iocb.un.cont64[0].tus.f.bdeSize = | |
11669 | LPFC_DATA_BUF_SIZE; | |
11670 | first_iocbq->iocb.un.rcvels.remoteID = sid; | |
8fa38513 | 11671 | first_iocbq->iocb.unsli3.rcvsli3.acc_len += |
4d9ab994 JS |
11672 | bf_get(lpfc_rcqe_length, |
11673 | &seq_dmabuf->cq_event.cqe.rcqe_cmpl); | |
4f774513 JS |
11674 | } |
11675 | iocbq = first_iocbq; | |
11676 | /* | |
11677 | * Each IOCBq can have two Buffers assigned, so go through the list | |
11678 | * of buffers for this sequence and save two buffers in each IOCBq | |
11679 | */ | |
11680 | list_for_each_entry_safe(d_buf, n_buf, &seq_dmabuf->dbuf.list, list) { | |
11681 | if (!iocbq) { | |
11682 | lpfc_in_buf_free(vport->phba, d_buf); | |
11683 | continue; | |
11684 | } | |
11685 | if (!iocbq->context3) { | |
11686 | iocbq->context3 = d_buf; | |
11687 | iocbq->iocb.ulpBdeCount++; | |
eeead811 JS |
11688 | pbde = (struct ulp_bde64 *) |
11689 | &iocbq->iocb.unsli3.sli3Words[4]; | |
11690 | pbde->tus.f.bdeSize = LPFC_DATA_BUF_SIZE; | |
8fa38513 | 11691 | first_iocbq->iocb.unsli3.rcvsli3.acc_len += |
4d9ab994 JS |
11692 | bf_get(lpfc_rcqe_length, |
11693 | &seq_dmabuf->cq_event.cqe.rcqe_cmpl); | |
4f774513 JS |
11694 | } else { |
11695 | iocbq = lpfc_sli_get_iocbq(vport->phba); | |
11696 | if (!iocbq) { | |
11697 | if (first_iocbq) { | |
11698 | first_iocbq->iocb.ulpStatus = | |
11699 | IOSTAT_FCP_RSP_ERROR; | |
11700 | first_iocbq->iocb.un.ulpWord[4] = | |
11701 | IOERR_NO_RESOURCES; | |
11702 | } | |
11703 | lpfc_in_buf_free(vport->phba, d_buf); | |
11704 | continue; | |
11705 | } | |
11706 | iocbq->context2 = d_buf; | |
11707 | iocbq->context3 = NULL; | |
11708 | iocbq->iocb.ulpBdeCount = 1; | |
11709 | iocbq->iocb.un.cont64[0].tus.f.bdeSize = | |
11710 | LPFC_DATA_BUF_SIZE; | |
8fa38513 | 11711 | first_iocbq->iocb.unsli3.rcvsli3.acc_len += |
4d9ab994 JS |
11712 | bf_get(lpfc_rcqe_length, |
11713 | &seq_dmabuf->cq_event.cqe.rcqe_cmpl); | |
4f774513 JS |
11714 | iocbq->iocb.un.rcvels.remoteID = sid; |
11715 | list_add_tail(&iocbq->list, &first_iocbq->list); | |
11716 | } | |
11717 | } | |
11718 | return first_iocbq; | |
11719 | } | |
11720 | ||
6669f9bb JS |
11721 | static void |
11722 | lpfc_sli4_send_seq_to_ulp(struct lpfc_vport *vport, | |
11723 | struct hbq_dmabuf *seq_dmabuf) | |
11724 | { | |
11725 | struct fc_frame_header *fc_hdr; | |
11726 | struct lpfc_iocbq *iocbq, *curr_iocb, *next_iocb; | |
11727 | struct lpfc_hba *phba = vport->phba; | |
11728 | ||
11729 | fc_hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt; | |
11730 | iocbq = lpfc_prep_seq(vport, seq_dmabuf); | |
11731 | if (!iocbq) { | |
11732 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
11733 | "2707 Ring %d handler: Failed to allocate " | |
11734 | "iocb Rctl x%x Type x%x received\n", | |
11735 | LPFC_ELS_RING, | |
11736 | fc_hdr->fh_r_ctl, fc_hdr->fh_type); | |
11737 | return; | |
11738 | } | |
11739 | if (!lpfc_complete_unsol_iocb(phba, | |
11740 | &phba->sli.ring[LPFC_ELS_RING], | |
11741 | iocbq, fc_hdr->fh_r_ctl, | |
11742 | fc_hdr->fh_type)) | |
11743 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, | |
11744 | "2540 Ring %d handler: unexpected Rctl " | |
11745 | "x%x Type x%x received\n", | |
11746 | LPFC_ELS_RING, | |
11747 | fc_hdr->fh_r_ctl, fc_hdr->fh_type); | |
11748 | ||
11749 | /* Free iocb created in lpfc_prep_seq */ | |
11750 | list_for_each_entry_safe(curr_iocb, next_iocb, | |
11751 | &iocbq->list, list) { | |
11752 | list_del_init(&curr_iocb->list); | |
11753 | lpfc_sli_release_iocbq(phba, curr_iocb); | |
11754 | } | |
11755 | lpfc_sli_release_iocbq(phba, iocbq); | |
11756 | } | |
11757 | ||
4f774513 JS |
11758 | /** |
11759 | * lpfc_sli4_handle_received_buffer - Handle received buffers from firmware | |
11760 | * @phba: Pointer to HBA context object. | |
11761 | * | |
11762 | * This function is called with no lock held. This function processes all | |
11763 | * the received buffers and gives it to upper layers when a received buffer | |
11764 | * indicates that it is the final frame in the sequence. The interrupt | |
11765 | * service routine processes received buffers at interrupt contexts and adds | |
11766 | * received dma buffers to the rb_pend_list queue and signals the worker thread. | |
11767 | * Worker thread calls lpfc_sli4_handle_received_buffer, which will call the | |
11768 | * appropriate receive function when the final frame in a sequence is received. | |
11769 | **/ | |
4d9ab994 JS |
11770 | void |
11771 | lpfc_sli4_handle_received_buffer(struct lpfc_hba *phba, | |
11772 | struct hbq_dmabuf *dmabuf) | |
4f774513 | 11773 | { |
4d9ab994 | 11774 | struct hbq_dmabuf *seq_dmabuf; |
4f774513 JS |
11775 | struct fc_frame_header *fc_hdr; |
11776 | struct lpfc_vport *vport; | |
11777 | uint32_t fcfi; | |
4f774513 | 11778 | |
4f774513 | 11779 | /* Process each received buffer */ |
4d9ab994 JS |
11780 | fc_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt; |
11781 | /* check to see if this a valid type of frame */ | |
11782 | if (lpfc_fc_frame_check(phba, fc_hdr)) { | |
11783 | lpfc_in_buf_free(phba, &dmabuf->dbuf); | |
11784 | return; | |
11785 | } | |
11786 | fcfi = bf_get(lpfc_rcqe_fcf_id, &dmabuf->cq_event.cqe.rcqe_cmpl); | |
11787 | vport = lpfc_fc_frame_to_vport(phba, fc_hdr, fcfi); | |
c868595d | 11788 | if (!vport || !(vport->vpi_state & LPFC_VPI_REGISTERED)) { |
4d9ab994 JS |
11789 | /* throw out the frame */ |
11790 | lpfc_in_buf_free(phba, &dmabuf->dbuf); | |
11791 | return; | |
11792 | } | |
6669f9bb JS |
11793 | /* Handle the basic abort sequence (BA_ABTS) event */ |
11794 | if (fc_hdr->fh_r_ctl == FC_RCTL_BA_ABTS) { | |
11795 | lpfc_sli4_handle_unsol_abort(vport, dmabuf); | |
11796 | return; | |
11797 | } | |
11798 | ||
4d9ab994 JS |
11799 | /* Link this frame */ |
11800 | seq_dmabuf = lpfc_fc_frame_add(vport, dmabuf); | |
11801 | if (!seq_dmabuf) { | |
11802 | /* unable to add frame to vport - throw it out */ | |
11803 | lpfc_in_buf_free(phba, &dmabuf->dbuf); | |
11804 | return; | |
11805 | } | |
11806 | /* If not last frame in sequence continue processing frames. */ | |
def9c7a9 | 11807 | if (!lpfc_seq_complete(seq_dmabuf)) |
4d9ab994 | 11808 | return; |
def9c7a9 | 11809 | |
6669f9bb JS |
11810 | /* Send the complete sequence to the upper layer protocol */ |
11811 | lpfc_sli4_send_seq_to_ulp(vport, seq_dmabuf); | |
4f774513 | 11812 | } |
6fb120a7 JS |
11813 | |
11814 | /** | |
11815 | * lpfc_sli4_post_all_rpi_hdrs - Post the rpi header memory region to the port | |
11816 | * @phba: pointer to lpfc hba data structure. | |
11817 | * | |
11818 | * This routine is invoked to post rpi header templates to the | |
11819 | * HBA consistent with the SLI-4 interface spec. This routine | |
49198b37 JS |
11820 | * posts a SLI4_PAGE_SIZE memory region to the port to hold up to |
11821 | * SLI4_PAGE_SIZE modulo 64 rpi context headers. | |
6fb120a7 JS |
11822 | * |
11823 | * This routine does not require any locks. It's usage is expected | |
11824 | * to be driver load or reset recovery when the driver is | |
11825 | * sequential. | |
11826 | * | |
11827 | * Return codes | |
af901ca1 | 11828 | * 0 - successful |
d439d286 | 11829 | * -EIO - The mailbox failed to complete successfully. |
6fb120a7 JS |
11830 | * When this error occurs, the driver is not guaranteed |
11831 | * to have any rpi regions posted to the device and | |
11832 | * must either attempt to repost the regions or take a | |
11833 | * fatal error. | |
11834 | **/ | |
11835 | int | |
11836 | lpfc_sli4_post_all_rpi_hdrs(struct lpfc_hba *phba) | |
11837 | { | |
11838 | struct lpfc_rpi_hdr *rpi_page; | |
11839 | uint32_t rc = 0; | |
11840 | ||
11841 | /* Post all rpi memory regions to the port. */ | |
11842 | list_for_each_entry(rpi_page, &phba->sli4_hba.lpfc_rpi_hdr_list, list) { | |
11843 | rc = lpfc_sli4_post_rpi_hdr(phba, rpi_page); | |
11844 | if (rc != MBX_SUCCESS) { | |
11845 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
11846 | "2008 Error %d posting all rpi " | |
11847 | "headers\n", rc); | |
11848 | rc = -EIO; | |
11849 | break; | |
11850 | } | |
11851 | } | |
11852 | ||
11853 | return rc; | |
11854 | } | |
11855 | ||
11856 | /** | |
11857 | * lpfc_sli4_post_rpi_hdr - Post an rpi header memory region to the port | |
11858 | * @phba: pointer to lpfc hba data structure. | |
11859 | * @rpi_page: pointer to the rpi memory region. | |
11860 | * | |
11861 | * This routine is invoked to post a single rpi header to the | |
11862 | * HBA consistent with the SLI-4 interface spec. This memory region | |
11863 | * maps up to 64 rpi context regions. | |
11864 | * | |
11865 | * Return codes | |
af901ca1 | 11866 | * 0 - successful |
d439d286 JS |
11867 | * -ENOMEM - No available memory |
11868 | * -EIO - The mailbox failed to complete successfully. | |
6fb120a7 JS |
11869 | **/ |
11870 | int | |
11871 | lpfc_sli4_post_rpi_hdr(struct lpfc_hba *phba, struct lpfc_rpi_hdr *rpi_page) | |
11872 | { | |
11873 | LPFC_MBOXQ_t *mboxq; | |
11874 | struct lpfc_mbx_post_hdr_tmpl *hdr_tmpl; | |
11875 | uint32_t rc = 0; | |
11876 | uint32_t mbox_tmo; | |
11877 | uint32_t shdr_status, shdr_add_status; | |
11878 | union lpfc_sli4_cfg_shdr *shdr; | |
11879 | ||
11880 | /* The port is notified of the header region via a mailbox command. */ | |
11881 | mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
11882 | if (!mboxq) { | |
11883 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
11884 | "2001 Unable to allocate memory for issuing " | |
11885 | "SLI_CONFIG_SPECIAL mailbox command\n"); | |
11886 | return -ENOMEM; | |
11887 | } | |
11888 | ||
11889 | /* Post all rpi memory regions to the port. */ | |
11890 | hdr_tmpl = &mboxq->u.mqe.un.hdr_tmpl; | |
11891 | mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG); | |
11892 | lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE, | |
11893 | LPFC_MBOX_OPCODE_FCOE_POST_HDR_TEMPLATE, | |
11894 | sizeof(struct lpfc_mbx_post_hdr_tmpl) - | |
11895 | sizeof(struct mbox_header), LPFC_SLI4_MBX_EMBED); | |
11896 | bf_set(lpfc_mbx_post_hdr_tmpl_page_cnt, | |
11897 | hdr_tmpl, rpi_page->page_count); | |
11898 | bf_set(lpfc_mbx_post_hdr_tmpl_rpi_offset, hdr_tmpl, | |
11899 | rpi_page->start_rpi); | |
11900 | hdr_tmpl->rpi_paddr_lo = putPaddrLow(rpi_page->dmabuf->phys); | |
11901 | hdr_tmpl->rpi_paddr_hi = putPaddrHigh(rpi_page->dmabuf->phys); | |
f1126688 | 11902 | rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); |
6fb120a7 JS |
11903 | shdr = (union lpfc_sli4_cfg_shdr *) &hdr_tmpl->header.cfg_shdr; |
11904 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); | |
11905 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); | |
11906 | if (rc != MBX_TIMEOUT) | |
11907 | mempool_free(mboxq, phba->mbox_mem_pool); | |
11908 | if (shdr_status || shdr_add_status || rc) { | |
11909 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
11910 | "2514 POST_RPI_HDR mailbox failed with " | |
11911 | "status x%x add_status x%x, mbx status x%x\n", | |
11912 | shdr_status, shdr_add_status, rc); | |
11913 | rc = -ENXIO; | |
11914 | } | |
11915 | return rc; | |
11916 | } | |
11917 | ||
11918 | /** | |
11919 | * lpfc_sli4_alloc_rpi - Get an available rpi in the device's range | |
11920 | * @phba: pointer to lpfc hba data structure. | |
11921 | * | |
11922 | * This routine is invoked to post rpi header templates to the | |
11923 | * HBA consistent with the SLI-4 interface spec. This routine | |
49198b37 JS |
11924 | * posts a SLI4_PAGE_SIZE memory region to the port to hold up to |
11925 | * SLI4_PAGE_SIZE modulo 64 rpi context headers. | |
6fb120a7 JS |
11926 | * |
11927 | * Returns | |
af901ca1 | 11928 | * A nonzero rpi defined as rpi_base <= rpi < max_rpi if successful |
6fb120a7 JS |
11929 | * LPFC_RPI_ALLOC_ERROR if no rpis are available. |
11930 | **/ | |
11931 | int | |
11932 | lpfc_sli4_alloc_rpi(struct lpfc_hba *phba) | |
11933 | { | |
11934 | int rpi; | |
11935 | uint16_t max_rpi, rpi_base, rpi_limit; | |
11936 | uint16_t rpi_remaining; | |
11937 | struct lpfc_rpi_hdr *rpi_hdr; | |
11938 | ||
11939 | max_rpi = phba->sli4_hba.max_cfg_param.max_rpi; | |
11940 | rpi_base = phba->sli4_hba.max_cfg_param.rpi_base; | |
11941 | rpi_limit = phba->sli4_hba.next_rpi; | |
11942 | ||
11943 | /* | |
11944 | * The valid rpi range is not guaranteed to be zero-based. Start | |
11945 | * the search at the rpi_base as reported by the port. | |
11946 | */ | |
11947 | spin_lock_irq(&phba->hbalock); | |
11948 | rpi = find_next_zero_bit(phba->sli4_hba.rpi_bmask, rpi_limit, rpi_base); | |
11949 | if (rpi >= rpi_limit || rpi < rpi_base) | |
11950 | rpi = LPFC_RPI_ALLOC_ERROR; | |
11951 | else { | |
11952 | set_bit(rpi, phba->sli4_hba.rpi_bmask); | |
11953 | phba->sli4_hba.max_cfg_param.rpi_used++; | |
11954 | phba->sli4_hba.rpi_count++; | |
11955 | } | |
11956 | ||
11957 | /* | |
11958 | * Don't try to allocate more rpi header regions if the device limit | |
11959 | * on available rpis max has been exhausted. | |
11960 | */ | |
11961 | if ((rpi == LPFC_RPI_ALLOC_ERROR) && | |
11962 | (phba->sli4_hba.rpi_count >= max_rpi)) { | |
11963 | spin_unlock_irq(&phba->hbalock); | |
11964 | return rpi; | |
11965 | } | |
11966 | ||
11967 | /* | |
11968 | * If the driver is running low on rpi resources, allocate another | |
11969 | * page now. Note that the next_rpi value is used because | |
11970 | * it represents how many are actually in use whereas max_rpi notes | |
11971 | * how many are supported max by the device. | |
11972 | */ | |
11973 | rpi_remaining = phba->sli4_hba.next_rpi - rpi_base - | |
11974 | phba->sli4_hba.rpi_count; | |
11975 | spin_unlock_irq(&phba->hbalock); | |
11976 | if (rpi_remaining < LPFC_RPI_LOW_WATER_MARK) { | |
11977 | rpi_hdr = lpfc_sli4_create_rpi_hdr(phba); | |
11978 | if (!rpi_hdr) { | |
11979 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
11980 | "2002 Error Could not grow rpi " | |
11981 | "count\n"); | |
11982 | } else { | |
11983 | lpfc_sli4_post_rpi_hdr(phba, rpi_hdr); | |
11984 | } | |
11985 | } | |
11986 | ||
11987 | return rpi; | |
11988 | } | |
11989 | ||
d7c47992 JS |
11990 | /** |
11991 | * lpfc_sli4_free_rpi - Release an rpi for reuse. | |
11992 | * @phba: pointer to lpfc hba data structure. | |
11993 | * | |
11994 | * This routine is invoked to release an rpi to the pool of | |
11995 | * available rpis maintained by the driver. | |
11996 | **/ | |
11997 | void | |
11998 | __lpfc_sli4_free_rpi(struct lpfc_hba *phba, int rpi) | |
11999 | { | |
12000 | if (test_and_clear_bit(rpi, phba->sli4_hba.rpi_bmask)) { | |
12001 | phba->sli4_hba.rpi_count--; | |
12002 | phba->sli4_hba.max_cfg_param.rpi_used--; | |
12003 | } | |
12004 | } | |
12005 | ||
6fb120a7 JS |
12006 | /** |
12007 | * lpfc_sli4_free_rpi - Release an rpi for reuse. | |
12008 | * @phba: pointer to lpfc hba data structure. | |
12009 | * | |
12010 | * This routine is invoked to release an rpi to the pool of | |
12011 | * available rpis maintained by the driver. | |
12012 | **/ | |
12013 | void | |
12014 | lpfc_sli4_free_rpi(struct lpfc_hba *phba, int rpi) | |
12015 | { | |
12016 | spin_lock_irq(&phba->hbalock); | |
d7c47992 | 12017 | __lpfc_sli4_free_rpi(phba, rpi); |
6fb120a7 JS |
12018 | spin_unlock_irq(&phba->hbalock); |
12019 | } | |
12020 | ||
12021 | /** | |
12022 | * lpfc_sli4_remove_rpis - Remove the rpi bitmask region | |
12023 | * @phba: pointer to lpfc hba data structure. | |
12024 | * | |
12025 | * This routine is invoked to remove the memory region that | |
12026 | * provided rpi via a bitmask. | |
12027 | **/ | |
12028 | void | |
12029 | lpfc_sli4_remove_rpis(struct lpfc_hba *phba) | |
12030 | { | |
12031 | kfree(phba->sli4_hba.rpi_bmask); | |
12032 | } | |
12033 | ||
12034 | /** | |
12035 | * lpfc_sli4_resume_rpi - Remove the rpi bitmask region | |
12036 | * @phba: pointer to lpfc hba data structure. | |
12037 | * | |
12038 | * This routine is invoked to remove the memory region that | |
12039 | * provided rpi via a bitmask. | |
12040 | **/ | |
12041 | int | |
12042 | lpfc_sli4_resume_rpi(struct lpfc_nodelist *ndlp) | |
12043 | { | |
12044 | LPFC_MBOXQ_t *mboxq; | |
12045 | struct lpfc_hba *phba = ndlp->phba; | |
12046 | int rc; | |
12047 | ||
12048 | /* The port is notified of the header region via a mailbox command. */ | |
12049 | mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
12050 | if (!mboxq) | |
12051 | return -ENOMEM; | |
12052 | ||
12053 | /* Post all rpi memory regions to the port. */ | |
12054 | lpfc_resume_rpi(mboxq, ndlp); | |
12055 | rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT); | |
12056 | if (rc == MBX_NOT_FINISHED) { | |
12057 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
12058 | "2010 Resume RPI Mailbox failed " | |
12059 | "status %d, mbxStatus x%x\n", rc, | |
12060 | bf_get(lpfc_mqe_status, &mboxq->u.mqe)); | |
12061 | mempool_free(mboxq, phba->mbox_mem_pool); | |
12062 | return -EIO; | |
12063 | } | |
12064 | return 0; | |
12065 | } | |
12066 | ||
12067 | /** | |
12068 | * lpfc_sli4_init_vpi - Initialize a vpi with the port | |
12069 | * @phba: pointer to lpfc hba data structure. | |
12070 | * @vpi: vpi value to activate with the port. | |
12071 | * | |
12072 | * This routine is invoked to activate a vpi with the | |
12073 | * port when the host intends to use vports with a | |
12074 | * nonzero vpi. | |
12075 | * | |
12076 | * Returns: | |
12077 | * 0 success | |
12078 | * -Evalue otherwise | |
12079 | **/ | |
12080 | int | |
12081 | lpfc_sli4_init_vpi(struct lpfc_hba *phba, uint16_t vpi) | |
12082 | { | |
12083 | LPFC_MBOXQ_t *mboxq; | |
12084 | int rc = 0; | |
6a9c52cf | 12085 | int retval = MBX_SUCCESS; |
6fb120a7 JS |
12086 | uint32_t mbox_tmo; |
12087 | ||
12088 | if (vpi == 0) | |
12089 | return -EINVAL; | |
12090 | mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
12091 | if (!mboxq) | |
12092 | return -ENOMEM; | |
1c6834a7 | 12093 | lpfc_init_vpi(phba, mboxq, vpi); |
6fb120a7 JS |
12094 | mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_INIT_VPI); |
12095 | rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); | |
6fb120a7 JS |
12096 | if (rc != MBX_SUCCESS) { |
12097 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
12098 | "2022 INIT VPI Mailbox failed " | |
12099 | "status %d, mbxStatus x%x\n", rc, | |
12100 | bf_get(lpfc_mqe_status, &mboxq->u.mqe)); | |
6a9c52cf | 12101 | retval = -EIO; |
6fb120a7 | 12102 | } |
6a9c52cf JS |
12103 | if (rc != MBX_TIMEOUT) |
12104 | mempool_free(mboxq, phba->mbox_mem_pool); | |
12105 | ||
12106 | return retval; | |
6fb120a7 JS |
12107 | } |
12108 | ||
12109 | /** | |
12110 | * lpfc_mbx_cmpl_add_fcf_record - add fcf mbox completion handler. | |
12111 | * @phba: pointer to lpfc hba data structure. | |
12112 | * @mboxq: Pointer to mailbox object. | |
12113 | * | |
12114 | * This routine is invoked to manually add a single FCF record. The caller | |
12115 | * must pass a completely initialized FCF_Record. This routine takes | |
12116 | * care of the nonembedded mailbox operations. | |
12117 | **/ | |
12118 | static void | |
12119 | lpfc_mbx_cmpl_add_fcf_record(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) | |
12120 | { | |
12121 | void *virt_addr; | |
12122 | union lpfc_sli4_cfg_shdr *shdr; | |
12123 | uint32_t shdr_status, shdr_add_status; | |
12124 | ||
12125 | virt_addr = mboxq->sge_array->addr[0]; | |
12126 | /* The IOCTL status is embedded in the mailbox subheader. */ | |
12127 | shdr = (union lpfc_sli4_cfg_shdr *) virt_addr; | |
12128 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); | |
12129 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); | |
12130 | ||
12131 | if ((shdr_status || shdr_add_status) && | |
12132 | (shdr_status != STATUS_FCF_IN_USE)) | |
12133 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
12134 | "2558 ADD_FCF_RECORD mailbox failed with " | |
12135 | "status x%x add_status x%x\n", | |
12136 | shdr_status, shdr_add_status); | |
12137 | ||
12138 | lpfc_sli4_mbox_cmd_free(phba, mboxq); | |
12139 | } | |
12140 | ||
12141 | /** | |
12142 | * lpfc_sli4_add_fcf_record - Manually add an FCF Record. | |
12143 | * @phba: pointer to lpfc hba data structure. | |
12144 | * @fcf_record: pointer to the initialized fcf record to add. | |
12145 | * | |
12146 | * This routine is invoked to manually add a single FCF record. The caller | |
12147 | * must pass a completely initialized FCF_Record. This routine takes | |
12148 | * care of the nonembedded mailbox operations. | |
12149 | **/ | |
12150 | int | |
12151 | lpfc_sli4_add_fcf_record(struct lpfc_hba *phba, struct fcf_record *fcf_record) | |
12152 | { | |
12153 | int rc = 0; | |
12154 | LPFC_MBOXQ_t *mboxq; | |
12155 | uint8_t *bytep; | |
12156 | void *virt_addr; | |
12157 | dma_addr_t phys_addr; | |
12158 | struct lpfc_mbx_sge sge; | |
12159 | uint32_t alloc_len, req_len; | |
12160 | uint32_t fcfindex; | |
12161 | ||
12162 | mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
12163 | if (!mboxq) { | |
12164 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
12165 | "2009 Failed to allocate mbox for ADD_FCF cmd\n"); | |
12166 | return -ENOMEM; | |
12167 | } | |
12168 | ||
12169 | req_len = sizeof(struct fcf_record) + sizeof(union lpfc_sli4_cfg_shdr) + | |
12170 | sizeof(uint32_t); | |
12171 | ||
12172 | /* Allocate DMA memory and set up the non-embedded mailbox command */ | |
12173 | alloc_len = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE, | |
12174 | LPFC_MBOX_OPCODE_FCOE_ADD_FCF, | |
12175 | req_len, LPFC_SLI4_MBX_NEMBED); | |
12176 | if (alloc_len < req_len) { | |
12177 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
12178 | "2523 Allocated DMA memory size (x%x) is " | |
12179 | "less than the requested DMA memory " | |
12180 | "size (x%x)\n", alloc_len, req_len); | |
12181 | lpfc_sli4_mbox_cmd_free(phba, mboxq); | |
12182 | return -ENOMEM; | |
12183 | } | |
12184 | ||
12185 | /* | |
12186 | * Get the first SGE entry from the non-embedded DMA memory. This | |
12187 | * routine only uses a single SGE. | |
12188 | */ | |
12189 | lpfc_sli4_mbx_sge_get(mboxq, 0, &sge); | |
12190 | phys_addr = getPaddr(sge.pa_hi, sge.pa_lo); | |
6fb120a7 JS |
12191 | virt_addr = mboxq->sge_array->addr[0]; |
12192 | /* | |
12193 | * Configure the FCF record for FCFI 0. This is the driver's | |
12194 | * hardcoded default and gets used in nonFIP mode. | |
12195 | */ | |
12196 | fcfindex = bf_get(lpfc_fcf_record_fcf_index, fcf_record); | |
12197 | bytep = virt_addr + sizeof(union lpfc_sli4_cfg_shdr); | |
12198 | lpfc_sli_pcimem_bcopy(&fcfindex, bytep, sizeof(uint32_t)); | |
12199 | ||
12200 | /* | |
12201 | * Copy the fcf_index and the FCF Record Data. The data starts after | |
12202 | * the FCoE header plus word10. The data copy needs to be endian | |
12203 | * correct. | |
12204 | */ | |
12205 | bytep += sizeof(uint32_t); | |
12206 | lpfc_sli_pcimem_bcopy(fcf_record, bytep, sizeof(struct fcf_record)); | |
12207 | mboxq->vport = phba->pport; | |
12208 | mboxq->mbox_cmpl = lpfc_mbx_cmpl_add_fcf_record; | |
12209 | rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT); | |
12210 | if (rc == MBX_NOT_FINISHED) { | |
12211 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
12212 | "2515 ADD_FCF_RECORD mailbox failed with " | |
12213 | "status 0x%x\n", rc); | |
12214 | lpfc_sli4_mbox_cmd_free(phba, mboxq); | |
12215 | rc = -EIO; | |
12216 | } else | |
12217 | rc = 0; | |
12218 | ||
12219 | return rc; | |
12220 | } | |
12221 | ||
12222 | /** | |
12223 | * lpfc_sli4_build_dflt_fcf_record - Build the driver's default FCF Record. | |
12224 | * @phba: pointer to lpfc hba data structure. | |
12225 | * @fcf_record: pointer to the fcf record to write the default data. | |
12226 | * @fcf_index: FCF table entry index. | |
12227 | * | |
12228 | * This routine is invoked to build the driver's default FCF record. The | |
12229 | * values used are hardcoded. This routine handles memory initialization. | |
12230 | * | |
12231 | **/ | |
12232 | void | |
12233 | lpfc_sli4_build_dflt_fcf_record(struct lpfc_hba *phba, | |
12234 | struct fcf_record *fcf_record, | |
12235 | uint16_t fcf_index) | |
12236 | { | |
12237 | memset(fcf_record, 0, sizeof(struct fcf_record)); | |
12238 | fcf_record->max_rcv_size = LPFC_FCOE_MAX_RCV_SIZE; | |
12239 | fcf_record->fka_adv_period = LPFC_FCOE_FKA_ADV_PER; | |
12240 | fcf_record->fip_priority = LPFC_FCOE_FIP_PRIORITY; | |
12241 | bf_set(lpfc_fcf_record_mac_0, fcf_record, phba->fc_map[0]); | |
12242 | bf_set(lpfc_fcf_record_mac_1, fcf_record, phba->fc_map[1]); | |
12243 | bf_set(lpfc_fcf_record_mac_2, fcf_record, phba->fc_map[2]); | |
12244 | bf_set(lpfc_fcf_record_mac_3, fcf_record, LPFC_FCOE_FCF_MAC3); | |
12245 | bf_set(lpfc_fcf_record_mac_4, fcf_record, LPFC_FCOE_FCF_MAC4); | |
12246 | bf_set(lpfc_fcf_record_mac_5, fcf_record, LPFC_FCOE_FCF_MAC5); | |
12247 | bf_set(lpfc_fcf_record_fc_map_0, fcf_record, phba->fc_map[0]); | |
12248 | bf_set(lpfc_fcf_record_fc_map_1, fcf_record, phba->fc_map[1]); | |
12249 | bf_set(lpfc_fcf_record_fc_map_2, fcf_record, phba->fc_map[2]); | |
12250 | bf_set(lpfc_fcf_record_fcf_valid, fcf_record, 1); | |
0c287589 | 12251 | bf_set(lpfc_fcf_record_fcf_avail, fcf_record, 1); |
6fb120a7 JS |
12252 | bf_set(lpfc_fcf_record_fcf_index, fcf_record, fcf_index); |
12253 | bf_set(lpfc_fcf_record_mac_addr_prov, fcf_record, | |
12254 | LPFC_FCF_FPMA | LPFC_FCF_SPMA); | |
12255 | /* Set the VLAN bit map */ | |
12256 | if (phba->valid_vlan) { | |
12257 | fcf_record->vlan_bitmap[phba->vlan_id / 8] | |
12258 | = 1 << (phba->vlan_id % 8); | |
12259 | } | |
12260 | } | |
12261 | ||
12262 | /** | |
0c9ab6f5 | 12263 | * lpfc_sli4_fcf_scan_read_fcf_rec - Read hba fcf record for fcf scan. |
6fb120a7 JS |
12264 | * @phba: pointer to lpfc hba data structure. |
12265 | * @fcf_index: FCF table entry offset. | |
12266 | * | |
0c9ab6f5 JS |
12267 | * This routine is invoked to scan the entire FCF table by reading FCF |
12268 | * record and processing it one at a time starting from the @fcf_index | |
12269 | * for initial FCF discovery or fast FCF failover rediscovery. | |
12270 | * | |
12271 | * Return 0 if the mailbox command is submitted sucessfully, none 0 | |
12272 | * otherwise. | |
6fb120a7 JS |
12273 | **/ |
12274 | int | |
0c9ab6f5 | 12275 | lpfc_sli4_fcf_scan_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index) |
6fb120a7 JS |
12276 | { |
12277 | int rc = 0, error; | |
12278 | LPFC_MBOXQ_t *mboxq; | |
6fb120a7 | 12279 | |
32b9793f | 12280 | phba->fcoe_eventtag_at_fcf_scan = phba->fcoe_eventtag; |
6fb120a7 JS |
12281 | mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
12282 | if (!mboxq) { | |
12283 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
12284 | "2000 Failed to allocate mbox for " | |
12285 | "READ_FCF cmd\n"); | |
4d9ab994 | 12286 | error = -ENOMEM; |
0c9ab6f5 | 12287 | goto fail_fcf_scan; |
6fb120a7 | 12288 | } |
ecfd03c6 | 12289 | /* Construct the read FCF record mailbox command */ |
0c9ab6f5 | 12290 | rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index); |
ecfd03c6 JS |
12291 | if (rc) { |
12292 | error = -EINVAL; | |
0c9ab6f5 | 12293 | goto fail_fcf_scan; |
6fb120a7 | 12294 | } |
ecfd03c6 | 12295 | /* Issue the mailbox command asynchronously */ |
6fb120a7 | 12296 | mboxq->vport = phba->pport; |
0c9ab6f5 | 12297 | mboxq->mbox_cmpl = lpfc_mbx_cmpl_fcf_scan_read_fcf_rec; |
6fb120a7 | 12298 | rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT); |
ecfd03c6 | 12299 | if (rc == MBX_NOT_FINISHED) |
6fb120a7 | 12300 | error = -EIO; |
ecfd03c6 | 12301 | else { |
32b9793f JS |
12302 | spin_lock_irq(&phba->hbalock); |
12303 | phba->hba_flag |= FCF_DISC_INPROGRESS; | |
12304 | spin_unlock_irq(&phba->hbalock); | |
38b92ef8 JS |
12305 | /* Reset eligible FCF count for new scan */ |
12306 | if (fcf_index == LPFC_FCOE_FCF_GET_FIRST) | |
999d813f | 12307 | phba->fcf.eligible_fcf_cnt = 0; |
6fb120a7 | 12308 | error = 0; |
32b9793f | 12309 | } |
0c9ab6f5 | 12310 | fail_fcf_scan: |
4d9ab994 JS |
12311 | if (error) { |
12312 | if (mboxq) | |
12313 | lpfc_sli4_mbox_cmd_free(phba, mboxq); | |
12314 | /* FCF scan failed, clear FCF_DISC_INPROGRESS flag */ | |
12315 | spin_lock_irq(&phba->hbalock); | |
12316 | phba->hba_flag &= ~FCF_DISC_INPROGRESS; | |
12317 | spin_unlock_irq(&phba->hbalock); | |
12318 | } | |
6fb120a7 JS |
12319 | return error; |
12320 | } | |
a0c87cbd | 12321 | |
0c9ab6f5 JS |
12322 | /** |
12323 | * lpfc_sli4_fcf_rr_read_fcf_rec - Read hba fcf record for round robin fcf. | |
12324 | * @phba: pointer to lpfc hba data structure. | |
12325 | * @fcf_index: FCF table entry offset. | |
12326 | * | |
12327 | * This routine is invoked to read an FCF record indicated by @fcf_index | |
12328 | * and to use it for FLOGI round robin FCF failover. | |
12329 | * | |
12330 | * Return 0 if the mailbox command is submitted sucessfully, none 0 | |
12331 | * otherwise. | |
12332 | **/ | |
12333 | int | |
12334 | lpfc_sli4_fcf_rr_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index) | |
12335 | { | |
12336 | int rc = 0, error; | |
12337 | LPFC_MBOXQ_t *mboxq; | |
12338 | ||
12339 | mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
12340 | if (!mboxq) { | |
12341 | lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_INIT, | |
12342 | "2763 Failed to allocate mbox for " | |
12343 | "READ_FCF cmd\n"); | |
12344 | error = -ENOMEM; | |
12345 | goto fail_fcf_read; | |
12346 | } | |
12347 | /* Construct the read FCF record mailbox command */ | |
12348 | rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index); | |
12349 | if (rc) { | |
12350 | error = -EINVAL; | |
12351 | goto fail_fcf_read; | |
12352 | } | |
12353 | /* Issue the mailbox command asynchronously */ | |
12354 | mboxq->vport = phba->pport; | |
12355 | mboxq->mbox_cmpl = lpfc_mbx_cmpl_fcf_rr_read_fcf_rec; | |
12356 | rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT); | |
12357 | if (rc == MBX_NOT_FINISHED) | |
12358 | error = -EIO; | |
12359 | else | |
12360 | error = 0; | |
12361 | ||
12362 | fail_fcf_read: | |
12363 | if (error && mboxq) | |
12364 | lpfc_sli4_mbox_cmd_free(phba, mboxq); | |
12365 | return error; | |
12366 | } | |
12367 | ||
12368 | /** | |
12369 | * lpfc_sli4_read_fcf_rec - Read hba fcf record for update eligible fcf bmask. | |
12370 | * @phba: pointer to lpfc hba data structure. | |
12371 | * @fcf_index: FCF table entry offset. | |
12372 | * | |
12373 | * This routine is invoked to read an FCF record indicated by @fcf_index to | |
12374 | * determine whether it's eligible for FLOGI round robin failover list. | |
12375 | * | |
12376 | * Return 0 if the mailbox command is submitted sucessfully, none 0 | |
12377 | * otherwise. | |
12378 | **/ | |
12379 | int | |
12380 | lpfc_sli4_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index) | |
12381 | { | |
12382 | int rc = 0, error; | |
12383 | LPFC_MBOXQ_t *mboxq; | |
12384 | ||
12385 | mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
12386 | if (!mboxq) { | |
12387 | lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_INIT, | |
12388 | "2758 Failed to allocate mbox for " | |
12389 | "READ_FCF cmd\n"); | |
12390 | error = -ENOMEM; | |
12391 | goto fail_fcf_read; | |
12392 | } | |
12393 | /* Construct the read FCF record mailbox command */ | |
12394 | rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index); | |
12395 | if (rc) { | |
12396 | error = -EINVAL; | |
12397 | goto fail_fcf_read; | |
12398 | } | |
12399 | /* Issue the mailbox command asynchronously */ | |
12400 | mboxq->vport = phba->pport; | |
12401 | mboxq->mbox_cmpl = lpfc_mbx_cmpl_read_fcf_rec; | |
12402 | rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT); | |
12403 | if (rc == MBX_NOT_FINISHED) | |
12404 | error = -EIO; | |
12405 | else | |
12406 | error = 0; | |
12407 | ||
12408 | fail_fcf_read: | |
12409 | if (error && mboxq) | |
12410 | lpfc_sli4_mbox_cmd_free(phba, mboxq); | |
12411 | return error; | |
12412 | } | |
12413 | ||
12414 | /** | |
12415 | * lpfc_sli4_fcf_rr_next_index_get - Get next eligible fcf record index | |
12416 | * @phba: pointer to lpfc hba data structure. | |
12417 | * | |
12418 | * This routine is to get the next eligible FCF record index in a round | |
12419 | * robin fashion. If the next eligible FCF record index equals to the | |
12420 | * initial round robin FCF record index, LPFC_FCOE_FCF_NEXT_NONE (0xFFFF) | |
12421 | * shall be returned, otherwise, the next eligible FCF record's index | |
12422 | * shall be returned. | |
12423 | **/ | |
12424 | uint16_t | |
12425 | lpfc_sli4_fcf_rr_next_index_get(struct lpfc_hba *phba) | |
12426 | { | |
12427 | uint16_t next_fcf_index; | |
12428 | ||
3804dc84 JS |
12429 | /* Search start from next bit of currently registered FCF index */ |
12430 | next_fcf_index = (phba->fcf.current_rec.fcf_indx + 1) % | |
12431 | LPFC_SLI4_FCF_TBL_INDX_MAX; | |
0c9ab6f5 JS |
12432 | next_fcf_index = find_next_bit(phba->fcf.fcf_rr_bmask, |
12433 | LPFC_SLI4_FCF_TBL_INDX_MAX, | |
3804dc84 JS |
12434 | next_fcf_index); |
12435 | ||
0c9ab6f5 JS |
12436 | /* Wrap around condition on phba->fcf.fcf_rr_bmask */ |
12437 | if (next_fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) | |
12438 | next_fcf_index = find_next_bit(phba->fcf.fcf_rr_bmask, | |
12439 | LPFC_SLI4_FCF_TBL_INDX_MAX, 0); | |
3804dc84 JS |
12440 | |
12441 | /* Check roundrobin failover list empty condition */ | |
12442 | if (next_fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) { | |
12443 | lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, | |
12444 | "2844 No roundrobin failover FCF available\n"); | |
0c9ab6f5 | 12445 | return LPFC_FCOE_FCF_NEXT_NONE; |
3804dc84 JS |
12446 | } |
12447 | ||
12448 | /* Check roundrobin failover index bmask stop condition */ | |
12449 | if (next_fcf_index == phba->fcf.fcf_rr_init_indx) { | |
12450 | if (!(phba->fcf.fcf_flag & FCF_REDISC_RRU)) { | |
12451 | lpfc_printf_log(phba, KERN_WARNING, LOG_FIP, | |
12452 | "2847 Round robin failover FCF index " | |
12453 | "search hit stop condition:x%x\n", | |
12454 | next_fcf_index); | |
12455 | return LPFC_FCOE_FCF_NEXT_NONE; | |
12456 | } | |
12457 | /* The roundrobin failover index bmask updated, start over */ | |
12458 | lpfc_printf_log(phba, KERN_INFO, LOG_FIP, | |
12459 | "2848 Round robin failover FCF index bmask " | |
12460 | "updated, start over\n"); | |
12461 | spin_lock_irq(&phba->hbalock); | |
12462 | phba->fcf.fcf_flag &= ~FCF_REDISC_RRU; | |
12463 | spin_unlock_irq(&phba->hbalock); | |
12464 | return phba->fcf.fcf_rr_init_indx; | |
12465 | } | |
0c9ab6f5 | 12466 | |
3804dc84 JS |
12467 | lpfc_printf_log(phba, KERN_INFO, LOG_FIP, |
12468 | "2845 Get next round robin failover " | |
12469 | "FCF index x%x\n", next_fcf_index); | |
0c9ab6f5 JS |
12470 | return next_fcf_index; |
12471 | } | |
12472 | ||
12473 | /** | |
12474 | * lpfc_sli4_fcf_rr_index_set - Set bmask with eligible fcf record index | |
12475 | * @phba: pointer to lpfc hba data structure. | |
12476 | * | |
12477 | * This routine sets the FCF record index in to the eligible bmask for | |
12478 | * round robin failover search. It checks to make sure that the index | |
12479 | * does not go beyond the range of the driver allocated bmask dimension | |
12480 | * before setting the bit. | |
12481 | * | |
12482 | * Returns 0 if the index bit successfully set, otherwise, it returns | |
12483 | * -EINVAL. | |
12484 | **/ | |
12485 | int | |
12486 | lpfc_sli4_fcf_rr_index_set(struct lpfc_hba *phba, uint16_t fcf_index) | |
12487 | { | |
12488 | if (fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) { | |
12489 | lpfc_printf_log(phba, KERN_ERR, LOG_FIP, | |
12490 | "2610 HBA FCF index reached driver's " | |
12491 | "book keeping dimension: fcf_index:%d, " | |
12492 | "driver_bmask_max:%d\n", | |
12493 | fcf_index, LPFC_SLI4_FCF_TBL_INDX_MAX); | |
12494 | return -EINVAL; | |
12495 | } | |
12496 | /* Set the eligible FCF record index bmask */ | |
12497 | set_bit(fcf_index, phba->fcf.fcf_rr_bmask); | |
12498 | ||
3804dc84 JS |
12499 | /* Set the roundrobin index bmask updated */ |
12500 | spin_lock_irq(&phba->hbalock); | |
12501 | phba->fcf.fcf_flag |= FCF_REDISC_RRU; | |
12502 | spin_unlock_irq(&phba->hbalock); | |
12503 | ||
12504 | lpfc_printf_log(phba, KERN_INFO, LOG_FIP, | |
12505 | "2790 Set FCF index x%x to round robin failover " | |
12506 | "bmask\n", fcf_index); | |
12507 | ||
0c9ab6f5 JS |
12508 | return 0; |
12509 | } | |
12510 | ||
12511 | /** | |
3804dc84 | 12512 | * lpfc_sli4_fcf_rr_index_clear - Clear bmask from eligible fcf record index |
0c9ab6f5 JS |
12513 | * @phba: pointer to lpfc hba data structure. |
12514 | * | |
12515 | * This routine clears the FCF record index from the eligible bmask for | |
12516 | * round robin failover search. It checks to make sure that the index | |
12517 | * does not go beyond the range of the driver allocated bmask dimension | |
12518 | * before clearing the bit. | |
12519 | **/ | |
12520 | void | |
12521 | lpfc_sli4_fcf_rr_index_clear(struct lpfc_hba *phba, uint16_t fcf_index) | |
12522 | { | |
12523 | if (fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) { | |
12524 | lpfc_printf_log(phba, KERN_ERR, LOG_FIP, | |
12525 | "2762 HBA FCF index goes beyond driver's " | |
12526 | "book keeping dimension: fcf_index:%d, " | |
12527 | "driver_bmask_max:%d\n", | |
12528 | fcf_index, LPFC_SLI4_FCF_TBL_INDX_MAX); | |
12529 | return; | |
12530 | } | |
12531 | /* Clear the eligible FCF record index bmask */ | |
12532 | clear_bit(fcf_index, phba->fcf.fcf_rr_bmask); | |
3804dc84 JS |
12533 | |
12534 | lpfc_printf_log(phba, KERN_INFO, LOG_FIP, | |
12535 | "2791 Clear FCF index x%x from round robin failover " | |
12536 | "bmask\n", fcf_index); | |
0c9ab6f5 JS |
12537 | } |
12538 | ||
ecfd03c6 JS |
12539 | /** |
12540 | * lpfc_mbx_cmpl_redisc_fcf_table - completion routine for rediscover FCF table | |
12541 | * @phba: pointer to lpfc hba data structure. | |
12542 | * | |
12543 | * This routine is the completion routine for the rediscover FCF table mailbox | |
12544 | * command. If the mailbox command returned failure, it will try to stop the | |
12545 | * FCF rediscover wait timer. | |
12546 | **/ | |
12547 | void | |
12548 | lpfc_mbx_cmpl_redisc_fcf_table(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox) | |
12549 | { | |
12550 | struct lpfc_mbx_redisc_fcf_tbl *redisc_fcf; | |
12551 | uint32_t shdr_status, shdr_add_status; | |
12552 | ||
12553 | redisc_fcf = &mbox->u.mqe.un.redisc_fcf_tbl; | |
12554 | ||
12555 | shdr_status = bf_get(lpfc_mbox_hdr_status, | |
12556 | &redisc_fcf->header.cfg_shdr.response); | |
12557 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, | |
12558 | &redisc_fcf->header.cfg_shdr.response); | |
12559 | if (shdr_status || shdr_add_status) { | |
0c9ab6f5 | 12560 | lpfc_printf_log(phba, KERN_ERR, LOG_FIP, |
ecfd03c6 JS |
12561 | "2746 Requesting for FCF rediscovery failed " |
12562 | "status x%x add_status x%x\n", | |
12563 | shdr_status, shdr_add_status); | |
0c9ab6f5 | 12564 | if (phba->fcf.fcf_flag & FCF_ACVL_DISC) { |
fc2b989b | 12565 | spin_lock_irq(&phba->hbalock); |
0c9ab6f5 | 12566 | phba->fcf.fcf_flag &= ~FCF_ACVL_DISC; |
fc2b989b JS |
12567 | spin_unlock_irq(&phba->hbalock); |
12568 | /* | |
12569 | * CVL event triggered FCF rediscover request failed, | |
12570 | * last resort to re-try current registered FCF entry. | |
12571 | */ | |
12572 | lpfc_retry_pport_discovery(phba); | |
12573 | } else { | |
12574 | spin_lock_irq(&phba->hbalock); | |
0c9ab6f5 | 12575 | phba->fcf.fcf_flag &= ~FCF_DEAD_DISC; |
fc2b989b JS |
12576 | spin_unlock_irq(&phba->hbalock); |
12577 | /* | |
12578 | * DEAD FCF event triggered FCF rediscover request | |
12579 | * failed, last resort to fail over as a link down | |
12580 | * to FCF registration. | |
12581 | */ | |
12582 | lpfc_sli4_fcf_dead_failthrough(phba); | |
12583 | } | |
0c9ab6f5 JS |
12584 | } else { |
12585 | lpfc_printf_log(phba, KERN_INFO, LOG_FIP, | |
12586 | "2775 Start FCF rediscovery quiescent period " | |
12587 | "wait timer before scaning FCF table\n"); | |
ecfd03c6 JS |
12588 | /* |
12589 | * Start FCF rediscovery wait timer for pending FCF | |
12590 | * before rescan FCF record table. | |
12591 | */ | |
12592 | lpfc_fcf_redisc_wait_start_timer(phba); | |
0c9ab6f5 | 12593 | } |
ecfd03c6 JS |
12594 | |
12595 | mempool_free(mbox, phba->mbox_mem_pool); | |
12596 | } | |
12597 | ||
12598 | /** | |
3804dc84 | 12599 | * lpfc_sli4_redisc_fcf_table - Request to rediscover entire FCF table by port. |
ecfd03c6 JS |
12600 | * @phba: pointer to lpfc hba data structure. |
12601 | * | |
12602 | * This routine is invoked to request for rediscovery of the entire FCF table | |
12603 | * by the port. | |
12604 | **/ | |
12605 | int | |
12606 | lpfc_sli4_redisc_fcf_table(struct lpfc_hba *phba) | |
12607 | { | |
12608 | LPFC_MBOXQ_t *mbox; | |
12609 | struct lpfc_mbx_redisc_fcf_tbl *redisc_fcf; | |
12610 | int rc, length; | |
12611 | ||
0c9ab6f5 JS |
12612 | /* Cancel retry delay timers to all vports before FCF rediscover */ |
12613 | lpfc_cancel_all_vport_retry_delay_timer(phba); | |
12614 | ||
ecfd03c6 JS |
12615 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
12616 | if (!mbox) { | |
12617 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
12618 | "2745 Failed to allocate mbox for " | |
12619 | "requesting FCF rediscover.\n"); | |
12620 | return -ENOMEM; | |
12621 | } | |
12622 | ||
12623 | length = (sizeof(struct lpfc_mbx_redisc_fcf_tbl) - | |
12624 | sizeof(struct lpfc_sli4_cfg_mhdr)); | |
12625 | lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE, | |
12626 | LPFC_MBOX_OPCODE_FCOE_REDISCOVER_FCF, | |
12627 | length, LPFC_SLI4_MBX_EMBED); | |
12628 | ||
12629 | redisc_fcf = &mbox->u.mqe.un.redisc_fcf_tbl; | |
12630 | /* Set count to 0 for invalidating the entire FCF database */ | |
12631 | bf_set(lpfc_mbx_redisc_fcf_count, redisc_fcf, 0); | |
12632 | ||
12633 | /* Issue the mailbox command asynchronously */ | |
12634 | mbox->vport = phba->pport; | |
12635 | mbox->mbox_cmpl = lpfc_mbx_cmpl_redisc_fcf_table; | |
12636 | rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT); | |
12637 | ||
12638 | if (rc == MBX_NOT_FINISHED) { | |
12639 | mempool_free(mbox, phba->mbox_mem_pool); | |
12640 | return -EIO; | |
12641 | } | |
12642 | return 0; | |
12643 | } | |
12644 | ||
fc2b989b JS |
12645 | /** |
12646 | * lpfc_sli4_fcf_dead_failthrough - Failthrough routine to fcf dead event | |
12647 | * @phba: pointer to lpfc hba data structure. | |
12648 | * | |
12649 | * This function is the failover routine as a last resort to the FCF DEAD | |
12650 | * event when driver failed to perform fast FCF failover. | |
12651 | **/ | |
12652 | void | |
12653 | lpfc_sli4_fcf_dead_failthrough(struct lpfc_hba *phba) | |
12654 | { | |
12655 | uint32_t link_state; | |
12656 | ||
12657 | /* | |
12658 | * Last resort as FCF DEAD event failover will treat this as | |
12659 | * a link down, but save the link state because we don't want | |
12660 | * it to be changed to Link Down unless it is already down. | |
12661 | */ | |
12662 | link_state = phba->link_state; | |
12663 | lpfc_linkdown(phba); | |
12664 | phba->link_state = link_state; | |
12665 | ||
12666 | /* Unregister FCF if no devices connected to it */ | |
12667 | lpfc_unregister_unused_fcf(phba); | |
12668 | } | |
12669 | ||
a0c87cbd JS |
12670 | /** |
12671 | * lpfc_sli_read_link_ste - Read region 23 to decide if link is disabled. | |
12672 | * @phba: pointer to lpfc hba data structure. | |
12673 | * | |
12674 | * This function read region 23 and parse TLV for port status to | |
12675 | * decide if the user disaled the port. If the TLV indicates the | |
12676 | * port is disabled, the hba_flag is set accordingly. | |
12677 | **/ | |
12678 | void | |
12679 | lpfc_sli_read_link_ste(struct lpfc_hba *phba) | |
12680 | { | |
12681 | LPFC_MBOXQ_t *pmb = NULL; | |
12682 | MAILBOX_t *mb; | |
12683 | uint8_t *rgn23_data = NULL; | |
12684 | uint32_t offset = 0, data_size, sub_tlv_len, tlv_offset; | |
12685 | int rc; | |
12686 | ||
12687 | pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
12688 | if (!pmb) { | |
12689 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
12690 | "2600 lpfc_sli_read_serdes_param failed to" | |
12691 | " allocate mailbox memory\n"); | |
12692 | goto out; | |
12693 | } | |
12694 | mb = &pmb->u.mb; | |
12695 | ||
12696 | /* Get adapter Region 23 data */ | |
12697 | rgn23_data = kzalloc(DMP_RGN23_SIZE, GFP_KERNEL); | |
12698 | if (!rgn23_data) | |
12699 | goto out; | |
12700 | ||
12701 | do { | |
12702 | lpfc_dump_mem(phba, pmb, offset, DMP_REGION_23); | |
12703 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); | |
12704 | ||
12705 | if (rc != MBX_SUCCESS) { | |
12706 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
12707 | "2601 lpfc_sli_read_link_ste failed to" | |
12708 | " read config region 23 rc 0x%x Status 0x%x\n", | |
12709 | rc, mb->mbxStatus); | |
12710 | mb->un.varDmp.word_cnt = 0; | |
12711 | } | |
12712 | /* | |
12713 | * dump mem may return a zero when finished or we got a | |
12714 | * mailbox error, either way we are done. | |
12715 | */ | |
12716 | if (mb->un.varDmp.word_cnt == 0) | |
12717 | break; | |
12718 | if (mb->un.varDmp.word_cnt > DMP_RGN23_SIZE - offset) | |
12719 | mb->un.varDmp.word_cnt = DMP_RGN23_SIZE - offset; | |
12720 | ||
12721 | lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET, | |
12722 | rgn23_data + offset, | |
12723 | mb->un.varDmp.word_cnt); | |
12724 | offset += mb->un.varDmp.word_cnt; | |
12725 | } while (mb->un.varDmp.word_cnt && offset < DMP_RGN23_SIZE); | |
12726 | ||
12727 | data_size = offset; | |
12728 | offset = 0; | |
12729 | ||
12730 | if (!data_size) | |
12731 | goto out; | |
12732 | ||
12733 | /* Check the region signature first */ | |
12734 | if (memcmp(&rgn23_data[offset], LPFC_REGION23_SIGNATURE, 4)) { | |
12735 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
12736 | "2619 Config region 23 has bad signature\n"); | |
12737 | goto out; | |
12738 | } | |
12739 | offset += 4; | |
12740 | ||
12741 | /* Check the data structure version */ | |
12742 | if (rgn23_data[offset] != LPFC_REGION23_VERSION) { | |
12743 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
12744 | "2620 Config region 23 has bad version\n"); | |
12745 | goto out; | |
12746 | } | |
12747 | offset += 4; | |
12748 | ||
12749 | /* Parse TLV entries in the region */ | |
12750 | while (offset < data_size) { | |
12751 | if (rgn23_data[offset] == LPFC_REGION23_LAST_REC) | |
12752 | break; | |
12753 | /* | |
12754 | * If the TLV is not driver specific TLV or driver id is | |
12755 | * not linux driver id, skip the record. | |
12756 | */ | |
12757 | if ((rgn23_data[offset] != DRIVER_SPECIFIC_TYPE) || | |
12758 | (rgn23_data[offset + 2] != LINUX_DRIVER_ID) || | |
12759 | (rgn23_data[offset + 3] != 0)) { | |
12760 | offset += rgn23_data[offset + 1] * 4 + 4; | |
12761 | continue; | |
12762 | } | |
12763 | ||
12764 | /* Driver found a driver specific TLV in the config region */ | |
12765 | sub_tlv_len = rgn23_data[offset + 1] * 4; | |
12766 | offset += 4; | |
12767 | tlv_offset = 0; | |
12768 | ||
12769 | /* | |
12770 | * Search for configured port state sub-TLV. | |
12771 | */ | |
12772 | while ((offset < data_size) && | |
12773 | (tlv_offset < sub_tlv_len)) { | |
12774 | if (rgn23_data[offset] == LPFC_REGION23_LAST_REC) { | |
12775 | offset += 4; | |
12776 | tlv_offset += 4; | |
12777 | break; | |
12778 | } | |
12779 | if (rgn23_data[offset] != PORT_STE_TYPE) { | |
12780 | offset += rgn23_data[offset + 1] * 4 + 4; | |
12781 | tlv_offset += rgn23_data[offset + 1] * 4 + 4; | |
12782 | continue; | |
12783 | } | |
12784 | ||
12785 | /* This HBA contains PORT_STE configured */ | |
12786 | if (!rgn23_data[offset + 2]) | |
12787 | phba->hba_flag |= LINK_DISABLED; | |
12788 | ||
12789 | goto out; | |
12790 | } | |
12791 | } | |
12792 | out: | |
12793 | if (pmb) | |
12794 | mempool_free(pmb, phba->mbox_mem_pool); | |
12795 | kfree(rgn23_data); | |
12796 | return; | |
12797 | } | |
695a814e JS |
12798 | |
12799 | /** | |
12800 | * lpfc_cleanup_pending_mbox - Free up vport discovery mailbox commands. | |
12801 | * @vport: pointer to vport data structure. | |
12802 | * | |
12803 | * This function iterate through the mailboxq and clean up all REG_LOGIN | |
12804 | * and REG_VPI mailbox commands associated with the vport. This function | |
12805 | * is called when driver want to restart discovery of the vport due to | |
12806 | * a Clear Virtual Link event. | |
12807 | **/ | |
12808 | void | |
12809 | lpfc_cleanup_pending_mbox(struct lpfc_vport *vport) | |
12810 | { | |
12811 | struct lpfc_hba *phba = vport->phba; | |
12812 | LPFC_MBOXQ_t *mb, *nextmb; | |
12813 | struct lpfc_dmabuf *mp; | |
78730cfe | 12814 | struct lpfc_nodelist *ndlp; |
d439d286 | 12815 | struct lpfc_nodelist *act_mbx_ndlp = NULL; |
589a52d6 | 12816 | struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
d439d286 | 12817 | LIST_HEAD(mbox_cmd_list); |
695a814e | 12818 | |
d439d286 | 12819 | /* Clean up internally queued mailbox commands with the vport */ |
695a814e JS |
12820 | spin_lock_irq(&phba->hbalock); |
12821 | list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) { | |
12822 | if (mb->vport != vport) | |
12823 | continue; | |
12824 | ||
12825 | if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) && | |
12826 | (mb->u.mb.mbxCommand != MBX_REG_VPI)) | |
12827 | continue; | |
12828 | ||
d439d286 JS |
12829 | list_del(&mb->list); |
12830 | list_add_tail(&mb->list, &mbox_cmd_list); | |
12831 | } | |
12832 | /* Clean up active mailbox command with the vport */ | |
12833 | mb = phba->sli.mbox_active; | |
12834 | if (mb && (mb->vport == vport)) { | |
12835 | if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) || | |
12836 | (mb->u.mb.mbxCommand == MBX_REG_VPI)) | |
12837 | mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
12838 | if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) { | |
12839 | act_mbx_ndlp = (struct lpfc_nodelist *)mb->context2; | |
12840 | /* Put reference count for delayed processing */ | |
12841 | act_mbx_ndlp = lpfc_nlp_get(act_mbx_ndlp); | |
12842 | /* Unregister the RPI when mailbox complete */ | |
12843 | mb->mbox_flag |= LPFC_MBX_IMED_UNREG; | |
12844 | } | |
12845 | } | |
12846 | spin_unlock_irq(&phba->hbalock); | |
12847 | ||
12848 | /* Release the cleaned-up mailbox commands */ | |
12849 | while (!list_empty(&mbox_cmd_list)) { | |
12850 | list_remove_head(&mbox_cmd_list, mb, LPFC_MBOXQ_t, list); | |
695a814e | 12851 | if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) { |
d7c47992 JS |
12852 | if (phba->sli_rev == LPFC_SLI_REV4) |
12853 | __lpfc_sli4_free_rpi(phba, | |
12854 | mb->u.mb.un.varRegLogin.rpi); | |
695a814e JS |
12855 | mp = (struct lpfc_dmabuf *) (mb->context1); |
12856 | if (mp) { | |
12857 | __lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
12858 | kfree(mp); | |
12859 | } | |
78730cfe | 12860 | ndlp = (struct lpfc_nodelist *) mb->context2; |
d439d286 | 12861 | mb->context2 = NULL; |
78730cfe | 12862 | if (ndlp) { |
ec21b3b0 | 12863 | spin_lock(shost->host_lock); |
589a52d6 | 12864 | ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL; |
ec21b3b0 | 12865 | spin_unlock(shost->host_lock); |
78730cfe | 12866 | lpfc_nlp_put(ndlp); |
78730cfe | 12867 | } |
695a814e | 12868 | } |
695a814e JS |
12869 | mempool_free(mb, phba->mbox_mem_pool); |
12870 | } | |
d439d286 JS |
12871 | |
12872 | /* Release the ndlp with the cleaned-up active mailbox command */ | |
12873 | if (act_mbx_ndlp) { | |
12874 | spin_lock(shost->host_lock); | |
12875 | act_mbx_ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL; | |
12876 | spin_unlock(shost->host_lock); | |
12877 | lpfc_nlp_put(act_mbx_ndlp); | |
695a814e | 12878 | } |
695a814e JS |
12879 | } |
12880 | ||
2a9bf3d0 JS |
12881 | /** |
12882 | * lpfc_drain_txq - Drain the txq | |
12883 | * @phba: Pointer to HBA context object. | |
12884 | * | |
12885 | * This function attempt to submit IOCBs on the txq | |
12886 | * to the adapter. For SLI4 adapters, the txq contains | |
12887 | * ELS IOCBs that have been deferred because the there | |
12888 | * are no SGLs. This congestion can occur with large | |
12889 | * vport counts during node discovery. | |
12890 | **/ | |
12891 | ||
12892 | uint32_t | |
12893 | lpfc_drain_txq(struct lpfc_hba *phba) | |
12894 | { | |
12895 | LIST_HEAD(completions); | |
12896 | struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING]; | |
12897 | struct lpfc_iocbq *piocbq = 0; | |
12898 | unsigned long iflags = 0; | |
12899 | char *fail_msg = NULL; | |
12900 | struct lpfc_sglq *sglq; | |
12901 | union lpfc_wqe wqe; | |
12902 | ||
12903 | spin_lock_irqsave(&phba->hbalock, iflags); | |
12904 | if (pring->txq_cnt > pring->txq_max) | |
12905 | pring->txq_max = pring->txq_cnt; | |
12906 | ||
12907 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
12908 | ||
12909 | while (pring->txq_cnt) { | |
12910 | spin_lock_irqsave(&phba->hbalock, iflags); | |
12911 | ||
12912 | sglq = __lpfc_sli_get_sglq(phba); | |
12913 | if (!sglq) { | |
12914 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
12915 | break; | |
12916 | } else { | |
12917 | piocbq = lpfc_sli_ringtx_get(phba, pring); | |
12918 | if (!piocbq) { | |
12919 | /* The txq_cnt out of sync. This should | |
12920 | * never happen | |
12921 | */ | |
12922 | sglq = __lpfc_clear_active_sglq(phba, | |
12923 | sglq->sli4_xritag); | |
12924 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
12925 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
12926 | "2823 txq empty and txq_cnt is %d\n ", | |
12927 | pring->txq_cnt); | |
12928 | break; | |
12929 | } | |
12930 | } | |
12931 | ||
12932 | /* The xri and iocb resources secured, | |
12933 | * attempt to issue request | |
12934 | */ | |
12935 | piocbq->sli4_xritag = sglq->sli4_xritag; | |
12936 | if (NO_XRI == lpfc_sli4_bpl2sgl(phba, piocbq, sglq)) | |
12937 | fail_msg = "to convert bpl to sgl"; | |
12938 | else if (lpfc_sli4_iocb2wqe(phba, piocbq, &wqe)) | |
12939 | fail_msg = "to convert iocb to wqe"; | |
12940 | else if (lpfc_sli4_wq_put(phba->sli4_hba.els_wq, &wqe)) | |
12941 | fail_msg = " - Wq is full"; | |
12942 | else | |
12943 | lpfc_sli_ringtxcmpl_put(phba, pring, piocbq); | |
12944 | ||
12945 | if (fail_msg) { | |
12946 | /* Failed means we can't issue and need to cancel */ | |
12947 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
12948 | "2822 IOCB failed %s iotag 0x%x " | |
12949 | "xri 0x%x\n", | |
12950 | fail_msg, | |
12951 | piocbq->iotag, piocbq->sli4_xritag); | |
12952 | list_add_tail(&piocbq->list, &completions); | |
12953 | } | |
12954 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
12955 | } | |
12956 | ||
2a9bf3d0 JS |
12957 | /* Cancel all the IOCBs that cannot be issued */ |
12958 | lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, | |
12959 | IOERR_SLI_ABORTED); | |
12960 | ||
12961 | return pring->txq_cnt; | |
12962 | } |