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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> | |
26 | ||
91886523 | 27 | #include <scsi/scsi.h> |
dea3101e | 28 | #include <scsi/scsi_cmnd.h> |
29 | #include <scsi/scsi_device.h> | |
30 | #include <scsi/scsi_host.h> | |
f888ba3c | 31 | #include <scsi/scsi_transport_fc.h> |
da0436e9 | 32 | #include <scsi/fc/fc_fs.h> |
dea3101e | 33 | |
da0436e9 | 34 | #include "lpfc_hw4.h" |
dea3101e | 35 | #include "lpfc_hw.h" |
36 | #include "lpfc_sli.h" | |
da0436e9 | 37 | #include "lpfc_sli4.h" |
ea2151b4 | 38 | #include "lpfc_nl.h" |
dea3101e | 39 | #include "lpfc_disc.h" |
40 | #include "lpfc_scsi.h" | |
41 | #include "lpfc.h" | |
42 | #include "lpfc_crtn.h" | |
43 | #include "lpfc_logmsg.h" | |
44 | #include "lpfc_compat.h" | |
858c9f6c | 45 | #include "lpfc_debugfs.h" |
04c68496 | 46 | #include "lpfc_vport.h" |
dea3101e | 47 | |
48 | /* There are only four IOCB completion types. */ | |
49 | typedef enum _lpfc_iocb_type { | |
50 | LPFC_UNKNOWN_IOCB, | |
51 | LPFC_UNSOL_IOCB, | |
52 | LPFC_SOL_IOCB, | |
53 | LPFC_ABORT_IOCB | |
54 | } lpfc_iocb_type; | |
55 | ||
4f774513 JS |
56 | |
57 | /* Provide function prototypes local to this module. */ | |
58 | static int lpfc_sli_issue_mbox_s4(struct lpfc_hba *, LPFC_MBOXQ_t *, | |
59 | uint32_t); | |
60 | static int lpfc_sli4_read_rev(struct lpfc_hba *, LPFC_MBOXQ_t *, | |
61 | uint8_t *, uint32_t *); | |
62 | ||
63 | static IOCB_t * | |
64 | lpfc_get_iocb_from_iocbq(struct lpfc_iocbq *iocbq) | |
65 | { | |
66 | return &iocbq->iocb; | |
67 | } | |
68 | ||
69 | /** | |
70 | * lpfc_sli4_wq_put - Put a Work Queue Entry on an Work Queue | |
71 | * @q: The Work Queue to operate on. | |
72 | * @wqe: The work Queue Entry to put on the Work queue. | |
73 | * | |
74 | * This routine will copy the contents of @wqe to the next available entry on | |
75 | * the @q. This function will then ring the Work Queue Doorbell to signal the | |
76 | * HBA to start processing the Work Queue Entry. This function returns 0 if | |
77 | * successful. If no entries are available on @q then this function will return | |
78 | * -ENOMEM. | |
79 | * The caller is expected to hold the hbalock when calling this routine. | |
80 | **/ | |
81 | static uint32_t | |
82 | lpfc_sli4_wq_put(struct lpfc_queue *q, union lpfc_wqe *wqe) | |
83 | { | |
84 | union lpfc_wqe *temp_wqe = q->qe[q->host_index].wqe; | |
85 | struct lpfc_register doorbell; | |
86 | uint32_t host_index; | |
87 | ||
88 | /* If the host has not yet processed the next entry then we are done */ | |
89 | if (((q->host_index + 1) % q->entry_count) == q->hba_index) | |
90 | return -ENOMEM; | |
91 | /* set consumption flag every once in a while */ | |
92 | if (!((q->host_index + 1) % LPFC_RELEASE_NOTIFICATION_INTERVAL)) | |
93 | bf_set(lpfc_wqe_gen_wqec, &wqe->generic, 1); | |
94 | ||
95 | lpfc_sli_pcimem_bcopy(wqe, temp_wqe, q->entry_size); | |
96 | ||
97 | /* Update the host index before invoking device */ | |
98 | host_index = q->host_index; | |
99 | q->host_index = ((q->host_index + 1) % q->entry_count); | |
100 | ||
101 | /* Ring Doorbell */ | |
102 | doorbell.word0 = 0; | |
103 | bf_set(lpfc_wq_doorbell_num_posted, &doorbell, 1); | |
104 | bf_set(lpfc_wq_doorbell_index, &doorbell, host_index); | |
105 | bf_set(lpfc_wq_doorbell_id, &doorbell, q->queue_id); | |
106 | writel(doorbell.word0, q->phba->sli4_hba.WQDBregaddr); | |
107 | readl(q->phba->sli4_hba.WQDBregaddr); /* Flush */ | |
108 | ||
109 | return 0; | |
110 | } | |
111 | ||
112 | /** | |
113 | * lpfc_sli4_wq_release - Updates internal hba index for WQ | |
114 | * @q: The Work Queue to operate on. | |
115 | * @index: The index to advance the hba index to. | |
116 | * | |
117 | * This routine will update the HBA index of a queue to reflect consumption of | |
118 | * Work Queue Entries by the HBA. When the HBA indicates that it has consumed | |
119 | * an entry the host calls this function to update the queue's internal | |
120 | * pointers. This routine returns the number of entries that were consumed by | |
121 | * the HBA. | |
122 | **/ | |
123 | static uint32_t | |
124 | lpfc_sli4_wq_release(struct lpfc_queue *q, uint32_t index) | |
125 | { | |
126 | uint32_t released = 0; | |
127 | ||
128 | if (q->hba_index == index) | |
129 | return 0; | |
130 | do { | |
131 | q->hba_index = ((q->hba_index + 1) % q->entry_count); | |
132 | released++; | |
133 | } while (q->hba_index != index); | |
134 | return released; | |
135 | } | |
136 | ||
137 | /** | |
138 | * lpfc_sli4_mq_put - Put a Mailbox Queue Entry on an Mailbox Queue | |
139 | * @q: The Mailbox Queue to operate on. | |
140 | * @wqe: The Mailbox Queue Entry to put on the Work queue. | |
141 | * | |
142 | * This routine will copy the contents of @mqe to the next available entry on | |
143 | * the @q. This function will then ring the Work Queue Doorbell to signal the | |
144 | * HBA to start processing the Work Queue Entry. This function returns 0 if | |
145 | * successful. If no entries are available on @q then this function will return | |
146 | * -ENOMEM. | |
147 | * The caller is expected to hold the hbalock when calling this routine. | |
148 | **/ | |
149 | static uint32_t | |
150 | lpfc_sli4_mq_put(struct lpfc_queue *q, struct lpfc_mqe *mqe) | |
151 | { | |
152 | struct lpfc_mqe *temp_mqe = q->qe[q->host_index].mqe; | |
153 | struct lpfc_register doorbell; | |
154 | uint32_t host_index; | |
155 | ||
156 | /* If the host has not yet processed the next entry then we are done */ | |
157 | if (((q->host_index + 1) % q->entry_count) == q->hba_index) | |
158 | return -ENOMEM; | |
159 | lpfc_sli_pcimem_bcopy(mqe, temp_mqe, q->entry_size); | |
160 | /* Save off the mailbox pointer for completion */ | |
161 | q->phba->mbox = (MAILBOX_t *)temp_mqe; | |
162 | ||
163 | /* Update the host index before invoking device */ | |
164 | host_index = q->host_index; | |
165 | q->host_index = ((q->host_index + 1) % q->entry_count); | |
166 | ||
167 | /* Ring Doorbell */ | |
168 | doorbell.word0 = 0; | |
169 | bf_set(lpfc_mq_doorbell_num_posted, &doorbell, 1); | |
170 | bf_set(lpfc_mq_doorbell_id, &doorbell, q->queue_id); | |
171 | writel(doorbell.word0, q->phba->sli4_hba.MQDBregaddr); | |
172 | readl(q->phba->sli4_hba.MQDBregaddr); /* Flush */ | |
173 | return 0; | |
174 | } | |
175 | ||
176 | /** | |
177 | * lpfc_sli4_mq_release - Updates internal hba index for MQ | |
178 | * @q: The Mailbox Queue to operate on. | |
179 | * | |
180 | * This routine will update the HBA index of a queue to reflect consumption of | |
181 | * a Mailbox Queue Entry by the HBA. When the HBA indicates that it has consumed | |
182 | * an entry the host calls this function to update the queue's internal | |
183 | * pointers. This routine returns the number of entries that were consumed by | |
184 | * the HBA. | |
185 | **/ | |
186 | static uint32_t | |
187 | lpfc_sli4_mq_release(struct lpfc_queue *q) | |
188 | { | |
189 | /* Clear the mailbox pointer for completion */ | |
190 | q->phba->mbox = NULL; | |
191 | q->hba_index = ((q->hba_index + 1) % q->entry_count); | |
192 | return 1; | |
193 | } | |
194 | ||
195 | /** | |
196 | * lpfc_sli4_eq_get - Gets the next valid EQE from a EQ | |
197 | * @q: The Event Queue to get the first valid EQE from | |
198 | * | |
199 | * This routine will get the first valid Event Queue Entry from @q, update | |
200 | * the queue's internal hba index, and return the EQE. If no valid EQEs are in | |
201 | * the Queue (no more work to do), or the Queue is full of EQEs that have been | |
202 | * processed, but not popped back to the HBA then this routine will return NULL. | |
203 | **/ | |
204 | static struct lpfc_eqe * | |
205 | lpfc_sli4_eq_get(struct lpfc_queue *q) | |
206 | { | |
207 | struct lpfc_eqe *eqe = q->qe[q->hba_index].eqe; | |
208 | ||
209 | /* If the next EQE is not valid then we are done */ | |
210 | if (!bf_get(lpfc_eqe_valid, eqe)) | |
211 | return NULL; | |
212 | /* If the host has not yet processed the next entry then we are done */ | |
213 | if (((q->hba_index + 1) % q->entry_count) == q->host_index) | |
214 | return NULL; | |
215 | ||
216 | q->hba_index = ((q->hba_index + 1) % q->entry_count); | |
217 | return eqe; | |
218 | } | |
219 | ||
220 | /** | |
221 | * lpfc_sli4_eq_release - Indicates the host has finished processing an EQ | |
222 | * @q: The Event Queue that the host has completed processing for. | |
223 | * @arm: Indicates whether the host wants to arms this CQ. | |
224 | * | |
225 | * This routine will mark all Event Queue Entries on @q, from the last | |
226 | * known completed entry to the last entry that was processed, as completed | |
227 | * by clearing the valid bit for each completion queue entry. Then it will | |
228 | * notify the HBA, by ringing the doorbell, that the EQEs have been processed. | |
229 | * The internal host index in the @q will be updated by this routine to indicate | |
230 | * that the host has finished processing the entries. The @arm parameter | |
231 | * indicates that the queue should be rearmed when ringing the doorbell. | |
232 | * | |
233 | * This function will return the number of EQEs that were popped. | |
234 | **/ | |
235 | uint32_t | |
236 | lpfc_sli4_eq_release(struct lpfc_queue *q, bool arm) | |
237 | { | |
238 | uint32_t released = 0; | |
239 | struct lpfc_eqe *temp_eqe; | |
240 | struct lpfc_register doorbell; | |
241 | ||
242 | /* while there are valid entries */ | |
243 | while (q->hba_index != q->host_index) { | |
244 | temp_eqe = q->qe[q->host_index].eqe; | |
245 | bf_set(lpfc_eqe_valid, temp_eqe, 0); | |
246 | released++; | |
247 | q->host_index = ((q->host_index + 1) % q->entry_count); | |
248 | } | |
249 | if (unlikely(released == 0 && !arm)) | |
250 | return 0; | |
251 | ||
252 | /* ring doorbell for number popped */ | |
253 | doorbell.word0 = 0; | |
254 | if (arm) { | |
255 | bf_set(lpfc_eqcq_doorbell_arm, &doorbell, 1); | |
256 | bf_set(lpfc_eqcq_doorbell_eqci, &doorbell, 1); | |
257 | } | |
258 | bf_set(lpfc_eqcq_doorbell_num_released, &doorbell, released); | |
259 | bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_EVENT); | |
260 | bf_set(lpfc_eqcq_doorbell_eqid, &doorbell, q->queue_id); | |
261 | writel(doorbell.word0, q->phba->sli4_hba.EQCQDBregaddr); | |
262 | return released; | |
263 | } | |
264 | ||
265 | /** | |
266 | * lpfc_sli4_cq_get - Gets the next valid CQE from a CQ | |
267 | * @q: The Completion Queue to get the first valid CQE from | |
268 | * | |
269 | * This routine will get the first valid Completion Queue Entry from @q, update | |
270 | * the queue's internal hba index, and return the CQE. If no valid CQEs are in | |
271 | * the Queue (no more work to do), or the Queue is full of CQEs that have been | |
272 | * processed, but not popped back to the HBA then this routine will return NULL. | |
273 | **/ | |
274 | static struct lpfc_cqe * | |
275 | lpfc_sli4_cq_get(struct lpfc_queue *q) | |
276 | { | |
277 | struct lpfc_cqe *cqe; | |
278 | ||
279 | /* If the next CQE is not valid then we are done */ | |
280 | if (!bf_get(lpfc_cqe_valid, q->qe[q->hba_index].cqe)) | |
281 | return NULL; | |
282 | /* If the host has not yet processed the next entry then we are done */ | |
283 | if (((q->hba_index + 1) % q->entry_count) == q->host_index) | |
284 | return NULL; | |
285 | ||
286 | cqe = q->qe[q->hba_index].cqe; | |
287 | q->hba_index = ((q->hba_index + 1) % q->entry_count); | |
288 | return cqe; | |
289 | } | |
290 | ||
291 | /** | |
292 | * lpfc_sli4_cq_release - Indicates the host has finished processing a CQ | |
293 | * @q: The Completion Queue that the host has completed processing for. | |
294 | * @arm: Indicates whether the host wants to arms this CQ. | |
295 | * | |
296 | * This routine will mark all Completion queue entries on @q, from the last | |
297 | * known completed entry to the last entry that was processed, as completed | |
298 | * by clearing the valid bit for each completion queue entry. Then it will | |
299 | * notify the HBA, by ringing the doorbell, that the CQEs have been processed. | |
300 | * The internal host index in the @q will be updated by this routine to indicate | |
301 | * that the host has finished processing the entries. The @arm parameter | |
302 | * indicates that the queue should be rearmed when ringing the doorbell. | |
303 | * | |
304 | * This function will return the number of CQEs that were released. | |
305 | **/ | |
306 | uint32_t | |
307 | lpfc_sli4_cq_release(struct lpfc_queue *q, bool arm) | |
308 | { | |
309 | uint32_t released = 0; | |
310 | struct lpfc_cqe *temp_qe; | |
311 | struct lpfc_register doorbell; | |
312 | ||
313 | /* while there are valid entries */ | |
314 | while (q->hba_index != q->host_index) { | |
315 | temp_qe = q->qe[q->host_index].cqe; | |
316 | bf_set(lpfc_cqe_valid, temp_qe, 0); | |
317 | released++; | |
318 | q->host_index = ((q->host_index + 1) % q->entry_count); | |
319 | } | |
320 | if (unlikely(released == 0 && !arm)) | |
321 | return 0; | |
322 | ||
323 | /* ring doorbell for number popped */ | |
324 | doorbell.word0 = 0; | |
325 | if (arm) | |
326 | bf_set(lpfc_eqcq_doorbell_arm, &doorbell, 1); | |
327 | bf_set(lpfc_eqcq_doorbell_num_released, &doorbell, released); | |
328 | bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_COMPLETION); | |
329 | bf_set(lpfc_eqcq_doorbell_cqid, &doorbell, q->queue_id); | |
330 | writel(doorbell.word0, q->phba->sli4_hba.EQCQDBregaddr); | |
331 | return released; | |
332 | } | |
333 | ||
334 | /** | |
335 | * lpfc_sli4_rq_put - Put a Receive Buffer Queue Entry on a Receive Queue | |
336 | * @q: The Header Receive Queue to operate on. | |
337 | * @wqe: The Receive Queue Entry to put on the Receive queue. | |
338 | * | |
339 | * This routine will copy the contents of @wqe to the next available entry on | |
340 | * the @q. This function will then ring the Receive Queue Doorbell to signal the | |
341 | * HBA to start processing the Receive Queue Entry. This function returns the | |
342 | * index that the rqe was copied to if successful. If no entries are available | |
343 | * on @q then this function will return -ENOMEM. | |
344 | * The caller is expected to hold the hbalock when calling this routine. | |
345 | **/ | |
346 | static int | |
347 | lpfc_sli4_rq_put(struct lpfc_queue *hq, struct lpfc_queue *dq, | |
348 | struct lpfc_rqe *hrqe, struct lpfc_rqe *drqe) | |
349 | { | |
350 | struct lpfc_rqe *temp_hrqe = hq->qe[hq->host_index].rqe; | |
351 | struct lpfc_rqe *temp_drqe = dq->qe[dq->host_index].rqe; | |
352 | struct lpfc_register doorbell; | |
353 | int put_index = hq->host_index; | |
354 | ||
355 | if (hq->type != LPFC_HRQ || dq->type != LPFC_DRQ) | |
356 | return -EINVAL; | |
357 | if (hq->host_index != dq->host_index) | |
358 | return -EINVAL; | |
359 | /* If the host has not yet processed the next entry then we are done */ | |
360 | if (((hq->host_index + 1) % hq->entry_count) == hq->hba_index) | |
361 | return -EBUSY; | |
362 | lpfc_sli_pcimem_bcopy(hrqe, temp_hrqe, hq->entry_size); | |
363 | lpfc_sli_pcimem_bcopy(drqe, temp_drqe, dq->entry_size); | |
364 | ||
365 | /* Update the host index to point to the next slot */ | |
366 | hq->host_index = ((hq->host_index + 1) % hq->entry_count); | |
367 | dq->host_index = ((dq->host_index + 1) % dq->entry_count); | |
368 | ||
369 | /* Ring The Header Receive Queue Doorbell */ | |
370 | if (!(hq->host_index % LPFC_RQ_POST_BATCH)) { | |
371 | doorbell.word0 = 0; | |
372 | bf_set(lpfc_rq_doorbell_num_posted, &doorbell, | |
373 | LPFC_RQ_POST_BATCH); | |
374 | bf_set(lpfc_rq_doorbell_id, &doorbell, hq->queue_id); | |
375 | writel(doorbell.word0, hq->phba->sli4_hba.RQDBregaddr); | |
376 | } | |
377 | return put_index; | |
378 | } | |
379 | ||
380 | /** | |
381 | * lpfc_sli4_rq_release - Updates internal hba index for RQ | |
382 | * @q: The Header Receive Queue to operate on. | |
383 | * | |
384 | * This routine will update the HBA index of a queue to reflect consumption of | |
385 | * one Receive Queue Entry by the HBA. When the HBA indicates that it has | |
386 | * consumed an entry the host calls this function to update the queue's | |
387 | * internal pointers. This routine returns the number of entries that were | |
388 | * consumed by the HBA. | |
389 | **/ | |
390 | static uint32_t | |
391 | lpfc_sli4_rq_release(struct lpfc_queue *hq, struct lpfc_queue *dq) | |
392 | { | |
393 | if ((hq->type != LPFC_HRQ) || (dq->type != LPFC_DRQ)) | |
394 | return 0; | |
395 | hq->hba_index = ((hq->hba_index + 1) % hq->entry_count); | |
396 | dq->hba_index = ((dq->hba_index + 1) % dq->entry_count); | |
397 | return 1; | |
398 | } | |
399 | ||
e59058c4 | 400 | /** |
3621a710 | 401 | * lpfc_cmd_iocb - Get next command iocb entry in the ring |
e59058c4 JS |
402 | * @phba: Pointer to HBA context object. |
403 | * @pring: Pointer to driver SLI ring object. | |
404 | * | |
405 | * This function returns pointer to next command iocb entry | |
406 | * in the command ring. The caller must hold hbalock to prevent | |
407 | * other threads consume the next command iocb. | |
408 | * SLI-2/SLI-3 provide different sized iocbs. | |
409 | **/ | |
ed957684 JS |
410 | static inline IOCB_t * |
411 | lpfc_cmd_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) | |
412 | { | |
413 | return (IOCB_t *) (((char *) pring->cmdringaddr) + | |
414 | pring->cmdidx * phba->iocb_cmd_size); | |
415 | } | |
416 | ||
e59058c4 | 417 | /** |
3621a710 | 418 | * lpfc_resp_iocb - Get next response iocb entry in the ring |
e59058c4 JS |
419 | * @phba: Pointer to HBA context object. |
420 | * @pring: Pointer to driver SLI ring object. | |
421 | * | |
422 | * This function returns pointer to next response iocb entry | |
423 | * in the response ring. The caller must hold hbalock to make sure | |
424 | * that no other thread consume the next response iocb. | |
425 | * SLI-2/SLI-3 provide different sized iocbs. | |
426 | **/ | |
ed957684 JS |
427 | static inline IOCB_t * |
428 | lpfc_resp_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) | |
429 | { | |
430 | return (IOCB_t *) (((char *) pring->rspringaddr) + | |
431 | pring->rspidx * phba->iocb_rsp_size); | |
432 | } | |
433 | ||
e59058c4 | 434 | /** |
3621a710 | 435 | * __lpfc_sli_get_iocbq - Allocates an iocb object from iocb pool |
e59058c4 JS |
436 | * @phba: Pointer to HBA context object. |
437 | * | |
438 | * This function is called with hbalock held. This function | |
439 | * allocates a new driver iocb object from the iocb pool. If the | |
440 | * allocation is successful, it returns pointer to the newly | |
441 | * allocated iocb object else it returns NULL. | |
442 | **/ | |
2e0fef85 JS |
443 | static struct lpfc_iocbq * |
444 | __lpfc_sli_get_iocbq(struct lpfc_hba *phba) | |
0bd4ca25 JSEC |
445 | { |
446 | struct list_head *lpfc_iocb_list = &phba->lpfc_iocb_list; | |
447 | struct lpfc_iocbq * iocbq = NULL; | |
448 | ||
449 | list_remove_head(lpfc_iocb_list, iocbq, struct lpfc_iocbq, list); | |
450 | return iocbq; | |
451 | } | |
452 | ||
da0436e9 JS |
453 | /** |
454 | * __lpfc_clear_active_sglq - Remove the active sglq for this XRI. | |
455 | * @phba: Pointer to HBA context object. | |
456 | * @xritag: XRI value. | |
457 | * | |
458 | * This function clears the sglq pointer from the array of acive | |
459 | * sglq's. The xritag that is passed in is used to index into the | |
460 | * array. Before the xritag can be used it needs to be adjusted | |
461 | * by subtracting the xribase. | |
462 | * | |
463 | * Returns sglq ponter = success, NULL = Failure. | |
464 | **/ | |
465 | static struct lpfc_sglq * | |
466 | __lpfc_clear_active_sglq(struct lpfc_hba *phba, uint16_t xritag) | |
467 | { | |
468 | uint16_t adj_xri; | |
469 | struct lpfc_sglq *sglq; | |
470 | adj_xri = xritag - phba->sli4_hba.max_cfg_param.xri_base; | |
471 | if (adj_xri > phba->sli4_hba.max_cfg_param.max_xri) | |
472 | return NULL; | |
473 | sglq = phba->sli4_hba.lpfc_sglq_active_list[adj_xri]; | |
474 | phba->sli4_hba.lpfc_sglq_active_list[adj_xri] = NULL; | |
475 | return sglq; | |
476 | } | |
477 | ||
478 | /** | |
479 | * __lpfc_get_active_sglq - Get the active sglq for this XRI. | |
480 | * @phba: Pointer to HBA context object. | |
481 | * @xritag: XRI value. | |
482 | * | |
483 | * This function returns the sglq pointer from the array of acive | |
484 | * sglq's. The xritag that is passed in is used to index into the | |
485 | * array. Before the xritag can be used it needs to be adjusted | |
486 | * by subtracting the xribase. | |
487 | * | |
488 | * Returns sglq ponter = success, NULL = Failure. | |
489 | **/ | |
490 | static struct lpfc_sglq * | |
491 | __lpfc_get_active_sglq(struct lpfc_hba *phba, uint16_t xritag) | |
492 | { | |
493 | uint16_t adj_xri; | |
494 | struct lpfc_sglq *sglq; | |
495 | adj_xri = xritag - phba->sli4_hba.max_cfg_param.xri_base; | |
496 | if (adj_xri > phba->sli4_hba.max_cfg_param.max_xri) | |
497 | return NULL; | |
498 | sglq = phba->sli4_hba.lpfc_sglq_active_list[adj_xri]; | |
499 | return sglq; | |
500 | } | |
501 | ||
502 | /** | |
503 | * __lpfc_sli_get_sglq - Allocates an iocb object from sgl pool | |
504 | * @phba: Pointer to HBA context object. | |
505 | * | |
506 | * This function is called with hbalock held. This function | |
507 | * Gets a new driver sglq object from the sglq list. If the | |
508 | * list is not empty then it is successful, it returns pointer to the newly | |
509 | * allocated sglq object else it returns NULL. | |
510 | **/ | |
511 | static struct lpfc_sglq * | |
512 | __lpfc_sli_get_sglq(struct lpfc_hba *phba) | |
513 | { | |
514 | struct list_head *lpfc_sgl_list = &phba->sli4_hba.lpfc_sgl_list; | |
515 | struct lpfc_sglq *sglq = NULL; | |
516 | uint16_t adj_xri; | |
517 | list_remove_head(lpfc_sgl_list, sglq, struct lpfc_sglq, list); | |
518 | adj_xri = sglq->sli4_xritag - phba->sli4_hba.max_cfg_param.xri_base; | |
519 | phba->sli4_hba.lpfc_sglq_active_list[adj_xri] = sglq; | |
520 | return sglq; | |
521 | } | |
522 | ||
e59058c4 | 523 | /** |
3621a710 | 524 | * lpfc_sli_get_iocbq - Allocates an iocb object from iocb pool |
e59058c4 JS |
525 | * @phba: Pointer to HBA context object. |
526 | * | |
527 | * This function is called with no lock held. This function | |
528 | * allocates a new driver iocb object from the iocb pool. If the | |
529 | * allocation is successful, it returns pointer to the newly | |
530 | * allocated iocb object else it returns NULL. | |
531 | **/ | |
2e0fef85 JS |
532 | struct lpfc_iocbq * |
533 | lpfc_sli_get_iocbq(struct lpfc_hba *phba) | |
534 | { | |
535 | struct lpfc_iocbq * iocbq = NULL; | |
536 | unsigned long iflags; | |
537 | ||
538 | spin_lock_irqsave(&phba->hbalock, iflags); | |
539 | iocbq = __lpfc_sli_get_iocbq(phba); | |
540 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
541 | return iocbq; | |
542 | } | |
543 | ||
4f774513 JS |
544 | /** |
545 | * __lpfc_sli_release_iocbq_s4 - Release iocb to the iocb pool | |
546 | * @phba: Pointer to HBA context object. | |
547 | * @iocbq: Pointer to driver iocb object. | |
548 | * | |
549 | * This function is called with hbalock held to release driver | |
550 | * iocb object to the iocb pool. The iotag in the iocb object | |
551 | * does not change for each use of the iocb object. This function | |
552 | * clears all other fields of the iocb object when it is freed. | |
553 | * The sqlq structure that holds the xritag and phys and virtual | |
554 | * mappings for the scatter gather list is retrieved from the | |
555 | * active array of sglq. The get of the sglq pointer also clears | |
556 | * the entry in the array. If the status of the IO indiactes that | |
557 | * this IO was aborted then the sglq entry it put on the | |
558 | * lpfc_abts_els_sgl_list until the CQ_ABORTED_XRI is received. If the | |
559 | * IO has good status or fails for any other reason then the sglq | |
560 | * entry is added to the free list (lpfc_sgl_list). | |
561 | **/ | |
562 | static void | |
563 | __lpfc_sli_release_iocbq_s4(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq) | |
564 | { | |
565 | struct lpfc_sglq *sglq; | |
566 | size_t start_clean = offsetof(struct lpfc_iocbq, iocb); | |
567 | unsigned long iflag; | |
568 | ||
569 | if (iocbq->sli4_xritag == NO_XRI) | |
570 | sglq = NULL; | |
571 | else | |
572 | sglq = __lpfc_clear_active_sglq(phba, iocbq->sli4_xritag); | |
573 | if (sglq) { | |
574 | if (iocbq->iocb_flag & LPFC_DRIVER_ABORTED | |
575 | || ((iocbq->iocb.ulpStatus == IOSTAT_LOCAL_REJECT) | |
576 | && (iocbq->iocb.un.ulpWord[4] | |
577 | == IOERR_SLI_ABORTED))) { | |
578 | spin_lock_irqsave(&phba->sli4_hba.abts_sgl_list_lock, | |
579 | iflag); | |
580 | list_add(&sglq->list, | |
581 | &phba->sli4_hba.lpfc_abts_els_sgl_list); | |
582 | spin_unlock_irqrestore( | |
583 | &phba->sli4_hba.abts_sgl_list_lock, iflag); | |
584 | } else | |
585 | list_add(&sglq->list, &phba->sli4_hba.lpfc_sgl_list); | |
586 | } | |
587 | ||
588 | ||
589 | /* | |
590 | * Clean all volatile data fields, preserve iotag and node struct. | |
591 | */ | |
592 | memset((char *)iocbq + start_clean, 0, sizeof(*iocbq) - start_clean); | |
593 | iocbq->sli4_xritag = NO_XRI; | |
594 | list_add_tail(&iocbq->list, &phba->lpfc_iocb_list); | |
595 | } | |
596 | ||
e59058c4 | 597 | /** |
3772a991 | 598 | * __lpfc_sli_release_iocbq_s3 - Release iocb to the iocb pool |
e59058c4 JS |
599 | * @phba: Pointer to HBA context object. |
600 | * @iocbq: Pointer to driver iocb object. | |
601 | * | |
602 | * This function is called with hbalock held to release driver | |
603 | * iocb object to the iocb pool. The iotag in the iocb object | |
604 | * does not change for each use of the iocb object. This function | |
605 | * clears all other fields of the iocb object when it is freed. | |
606 | **/ | |
a6ababd2 | 607 | static void |
3772a991 | 608 | __lpfc_sli_release_iocbq_s3(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq) |
604a3e30 | 609 | { |
2e0fef85 | 610 | size_t start_clean = offsetof(struct lpfc_iocbq, iocb); |
604a3e30 JB |
611 | |
612 | /* | |
613 | * Clean all volatile data fields, preserve iotag and node struct. | |
614 | */ | |
615 | memset((char*)iocbq + start_clean, 0, sizeof(*iocbq) - start_clean); | |
3772a991 | 616 | iocbq->sli4_xritag = NO_XRI; |
604a3e30 JB |
617 | list_add_tail(&iocbq->list, &phba->lpfc_iocb_list); |
618 | } | |
619 | ||
3772a991 JS |
620 | /** |
621 | * __lpfc_sli_release_iocbq - Release iocb to the iocb pool | |
622 | * @phba: Pointer to HBA context object. | |
623 | * @iocbq: Pointer to driver iocb object. | |
624 | * | |
625 | * This function is called with hbalock held to release driver | |
626 | * iocb object to the iocb pool. The iotag in the iocb object | |
627 | * does not change for each use of the iocb object. This function | |
628 | * clears all other fields of the iocb object when it is freed. | |
629 | **/ | |
630 | static void | |
631 | __lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq) | |
632 | { | |
633 | phba->__lpfc_sli_release_iocbq(phba, iocbq); | |
634 | } | |
635 | ||
e59058c4 | 636 | /** |
3621a710 | 637 | * lpfc_sli_release_iocbq - Release iocb to the iocb pool |
e59058c4 JS |
638 | * @phba: Pointer to HBA context object. |
639 | * @iocbq: Pointer to driver iocb object. | |
640 | * | |
641 | * This function is called with no lock held to release the iocb to | |
642 | * iocb pool. | |
643 | **/ | |
2e0fef85 JS |
644 | void |
645 | lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq) | |
646 | { | |
647 | unsigned long iflags; | |
648 | ||
649 | /* | |
650 | * Clean all volatile data fields, preserve iotag and node struct. | |
651 | */ | |
652 | spin_lock_irqsave(&phba->hbalock, iflags); | |
653 | __lpfc_sli_release_iocbq(phba, iocbq); | |
654 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
655 | } | |
656 | ||
a257bf90 JS |
657 | /** |
658 | * lpfc_sli_cancel_iocbs - Cancel all iocbs from a list. | |
659 | * @phba: Pointer to HBA context object. | |
660 | * @iocblist: List of IOCBs. | |
661 | * @ulpstatus: ULP status in IOCB command field. | |
662 | * @ulpWord4: ULP word-4 in IOCB command field. | |
663 | * | |
664 | * This function is called with a list of IOCBs to cancel. It cancels the IOCB | |
665 | * on the list by invoking the complete callback function associated with the | |
666 | * IOCB with the provided @ulpstatus and @ulpword4 set to the IOCB commond | |
667 | * fields. | |
668 | **/ | |
669 | void | |
670 | lpfc_sli_cancel_iocbs(struct lpfc_hba *phba, struct list_head *iocblist, | |
671 | uint32_t ulpstatus, uint32_t ulpWord4) | |
672 | { | |
673 | struct lpfc_iocbq *piocb; | |
674 | ||
675 | while (!list_empty(iocblist)) { | |
676 | list_remove_head(iocblist, piocb, struct lpfc_iocbq, list); | |
677 | ||
678 | if (!piocb->iocb_cmpl) | |
679 | lpfc_sli_release_iocbq(phba, piocb); | |
680 | else { | |
681 | piocb->iocb.ulpStatus = ulpstatus; | |
682 | piocb->iocb.un.ulpWord[4] = ulpWord4; | |
683 | (piocb->iocb_cmpl) (phba, piocb, piocb); | |
684 | } | |
685 | } | |
686 | return; | |
687 | } | |
688 | ||
e59058c4 | 689 | /** |
3621a710 JS |
690 | * lpfc_sli_iocb_cmd_type - Get the iocb type |
691 | * @iocb_cmnd: iocb command code. | |
e59058c4 JS |
692 | * |
693 | * This function is called by ring event handler function to get the iocb type. | |
694 | * This function translates the iocb command to an iocb command type used to | |
695 | * decide the final disposition of each completed IOCB. | |
696 | * The function returns | |
697 | * LPFC_UNKNOWN_IOCB if it is an unsupported iocb | |
698 | * LPFC_SOL_IOCB if it is a solicited iocb completion | |
699 | * LPFC_ABORT_IOCB if it is an abort iocb | |
700 | * LPFC_UNSOL_IOCB if it is an unsolicited iocb | |
701 | * | |
702 | * The caller is not required to hold any lock. | |
703 | **/ | |
dea3101e | 704 | static lpfc_iocb_type |
705 | lpfc_sli_iocb_cmd_type(uint8_t iocb_cmnd) | |
706 | { | |
707 | lpfc_iocb_type type = LPFC_UNKNOWN_IOCB; | |
708 | ||
709 | if (iocb_cmnd > CMD_MAX_IOCB_CMD) | |
710 | return 0; | |
711 | ||
712 | switch (iocb_cmnd) { | |
713 | case CMD_XMIT_SEQUENCE_CR: | |
714 | case CMD_XMIT_SEQUENCE_CX: | |
715 | case CMD_XMIT_BCAST_CN: | |
716 | case CMD_XMIT_BCAST_CX: | |
717 | case CMD_ELS_REQUEST_CR: | |
718 | case CMD_ELS_REQUEST_CX: | |
719 | case CMD_CREATE_XRI_CR: | |
720 | case CMD_CREATE_XRI_CX: | |
721 | case CMD_GET_RPI_CN: | |
722 | case CMD_XMIT_ELS_RSP_CX: | |
723 | case CMD_GET_RPI_CR: | |
724 | case CMD_FCP_IWRITE_CR: | |
725 | case CMD_FCP_IWRITE_CX: | |
726 | case CMD_FCP_IREAD_CR: | |
727 | case CMD_FCP_IREAD_CX: | |
728 | case CMD_FCP_ICMND_CR: | |
729 | case CMD_FCP_ICMND_CX: | |
f5603511 JS |
730 | case CMD_FCP_TSEND_CX: |
731 | case CMD_FCP_TRSP_CX: | |
732 | case CMD_FCP_TRECEIVE_CX: | |
733 | case CMD_FCP_AUTO_TRSP_CX: | |
dea3101e | 734 | case CMD_ADAPTER_MSG: |
735 | case CMD_ADAPTER_DUMP: | |
736 | case CMD_XMIT_SEQUENCE64_CR: | |
737 | case CMD_XMIT_SEQUENCE64_CX: | |
738 | case CMD_XMIT_BCAST64_CN: | |
739 | case CMD_XMIT_BCAST64_CX: | |
740 | case CMD_ELS_REQUEST64_CR: | |
741 | case CMD_ELS_REQUEST64_CX: | |
742 | case CMD_FCP_IWRITE64_CR: | |
743 | case CMD_FCP_IWRITE64_CX: | |
744 | case CMD_FCP_IREAD64_CR: | |
745 | case CMD_FCP_IREAD64_CX: | |
746 | case CMD_FCP_ICMND64_CR: | |
747 | case CMD_FCP_ICMND64_CX: | |
f5603511 JS |
748 | case CMD_FCP_TSEND64_CX: |
749 | case CMD_FCP_TRSP64_CX: | |
750 | case CMD_FCP_TRECEIVE64_CX: | |
dea3101e | 751 | case CMD_GEN_REQUEST64_CR: |
752 | case CMD_GEN_REQUEST64_CX: | |
753 | case CMD_XMIT_ELS_RSP64_CX: | |
da0436e9 JS |
754 | case DSSCMD_IWRITE64_CR: |
755 | case DSSCMD_IWRITE64_CX: | |
756 | case DSSCMD_IREAD64_CR: | |
757 | case DSSCMD_IREAD64_CX: | |
758 | case DSSCMD_INVALIDATE_DEK: | |
759 | case DSSCMD_SET_KEK: | |
760 | case DSSCMD_GET_KEK_ID: | |
761 | case DSSCMD_GEN_XFER: | |
dea3101e | 762 | type = LPFC_SOL_IOCB; |
763 | break; | |
764 | case CMD_ABORT_XRI_CN: | |
765 | case CMD_ABORT_XRI_CX: | |
766 | case CMD_CLOSE_XRI_CN: | |
767 | case CMD_CLOSE_XRI_CX: | |
768 | case CMD_XRI_ABORTED_CX: | |
769 | case CMD_ABORT_MXRI64_CN: | |
770 | type = LPFC_ABORT_IOCB; | |
771 | break; | |
772 | case CMD_RCV_SEQUENCE_CX: | |
773 | case CMD_RCV_ELS_REQ_CX: | |
774 | case CMD_RCV_SEQUENCE64_CX: | |
775 | case CMD_RCV_ELS_REQ64_CX: | |
57127f15 | 776 | case CMD_ASYNC_STATUS: |
ed957684 JS |
777 | case CMD_IOCB_RCV_SEQ64_CX: |
778 | case CMD_IOCB_RCV_ELS64_CX: | |
779 | case CMD_IOCB_RCV_CONT64_CX: | |
3163f725 | 780 | case CMD_IOCB_RET_XRI64_CX: |
dea3101e | 781 | type = LPFC_UNSOL_IOCB; |
782 | break; | |
3163f725 JS |
783 | case CMD_IOCB_XMIT_MSEQ64_CR: |
784 | case CMD_IOCB_XMIT_MSEQ64_CX: | |
785 | case CMD_IOCB_RCV_SEQ_LIST64_CX: | |
786 | case CMD_IOCB_RCV_ELS_LIST64_CX: | |
787 | case CMD_IOCB_CLOSE_EXTENDED_CN: | |
788 | case CMD_IOCB_ABORT_EXTENDED_CN: | |
789 | case CMD_IOCB_RET_HBQE64_CN: | |
790 | case CMD_IOCB_FCP_IBIDIR64_CR: | |
791 | case CMD_IOCB_FCP_IBIDIR64_CX: | |
792 | case CMD_IOCB_FCP_ITASKMGT64_CX: | |
793 | case CMD_IOCB_LOGENTRY_CN: | |
794 | case CMD_IOCB_LOGENTRY_ASYNC_CN: | |
795 | printk("%s - Unhandled SLI-3 Command x%x\n", | |
cadbd4a5 | 796 | __func__, iocb_cmnd); |
3163f725 JS |
797 | type = LPFC_UNKNOWN_IOCB; |
798 | break; | |
dea3101e | 799 | default: |
800 | type = LPFC_UNKNOWN_IOCB; | |
801 | break; | |
802 | } | |
803 | ||
804 | return type; | |
805 | } | |
806 | ||
e59058c4 | 807 | /** |
3621a710 | 808 | * lpfc_sli_ring_map - Issue config_ring mbox for all rings |
e59058c4 JS |
809 | * @phba: Pointer to HBA context object. |
810 | * | |
811 | * This function is called from SLI initialization code | |
812 | * to configure every ring of the HBA's SLI interface. The | |
813 | * caller is not required to hold any lock. This function issues | |
814 | * a config_ring mailbox command for each ring. | |
815 | * This function returns zero if successful else returns a negative | |
816 | * error code. | |
817 | **/ | |
dea3101e | 818 | static int |
ed957684 | 819 | lpfc_sli_ring_map(struct lpfc_hba *phba) |
dea3101e | 820 | { |
821 | struct lpfc_sli *psli = &phba->sli; | |
ed957684 JS |
822 | LPFC_MBOXQ_t *pmb; |
823 | MAILBOX_t *pmbox; | |
824 | int i, rc, ret = 0; | |
dea3101e | 825 | |
ed957684 JS |
826 | pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
827 | if (!pmb) | |
828 | return -ENOMEM; | |
04c68496 | 829 | pmbox = &pmb->u.mb; |
ed957684 | 830 | phba->link_state = LPFC_INIT_MBX_CMDS; |
dea3101e | 831 | for (i = 0; i < psli->num_rings; i++) { |
dea3101e | 832 | lpfc_config_ring(phba, i, pmb); |
833 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); | |
834 | if (rc != MBX_SUCCESS) { | |
92d7f7b0 | 835 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
e8b62011 | 836 | "0446 Adapter failed to init (%d), " |
dea3101e | 837 | "mbxCmd x%x CFG_RING, mbxStatus x%x, " |
838 | "ring %d\n", | |
e8b62011 JS |
839 | rc, pmbox->mbxCommand, |
840 | pmbox->mbxStatus, i); | |
2e0fef85 | 841 | phba->link_state = LPFC_HBA_ERROR; |
ed957684 JS |
842 | ret = -ENXIO; |
843 | break; | |
dea3101e | 844 | } |
845 | } | |
ed957684 JS |
846 | mempool_free(pmb, phba->mbox_mem_pool); |
847 | return ret; | |
dea3101e | 848 | } |
849 | ||
e59058c4 | 850 | /** |
3621a710 | 851 | * lpfc_sli_ringtxcmpl_put - Adds new iocb to the txcmplq |
e59058c4 JS |
852 | * @phba: Pointer to HBA context object. |
853 | * @pring: Pointer to driver SLI ring object. | |
854 | * @piocb: Pointer to the driver iocb object. | |
855 | * | |
856 | * This function is called with hbalock held. The function adds the | |
857 | * new iocb to txcmplq of the given ring. This function always returns | |
858 | * 0. If this function is called for ELS ring, this function checks if | |
859 | * there is a vport associated with the ELS command. This function also | |
860 | * starts els_tmofunc timer if this is an ELS command. | |
861 | **/ | |
dea3101e | 862 | static int |
2e0fef85 JS |
863 | lpfc_sli_ringtxcmpl_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, |
864 | struct lpfc_iocbq *piocb) | |
dea3101e | 865 | { |
dea3101e | 866 | list_add_tail(&piocb->list, &pring->txcmplq); |
867 | pring->txcmplq_cnt++; | |
92d7f7b0 JS |
868 | if ((unlikely(pring->ringno == LPFC_ELS_RING)) && |
869 | (piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) && | |
870 | (piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN)) { | |
871 | if (!piocb->vport) | |
872 | BUG(); | |
873 | else | |
874 | mod_timer(&piocb->vport->els_tmofunc, | |
875 | jiffies + HZ * (phba->fc_ratov << 1)); | |
876 | } | |
877 | ||
dea3101e | 878 | |
2e0fef85 | 879 | return 0; |
dea3101e | 880 | } |
881 | ||
e59058c4 | 882 | /** |
3621a710 | 883 | * lpfc_sli_ringtx_get - Get first element of the txq |
e59058c4 JS |
884 | * @phba: Pointer to HBA context object. |
885 | * @pring: Pointer to driver SLI ring object. | |
886 | * | |
887 | * This function is called with hbalock held to get next | |
888 | * iocb in txq of the given ring. If there is any iocb in | |
889 | * the txq, the function returns first iocb in the list after | |
890 | * removing the iocb from the list, else it returns NULL. | |
891 | **/ | |
dea3101e | 892 | static struct lpfc_iocbq * |
2e0fef85 | 893 | lpfc_sli_ringtx_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) |
dea3101e | 894 | { |
dea3101e | 895 | struct lpfc_iocbq *cmd_iocb; |
896 | ||
858c9f6c JS |
897 | list_remove_head((&pring->txq), cmd_iocb, struct lpfc_iocbq, list); |
898 | if (cmd_iocb != NULL) | |
dea3101e | 899 | pring->txq_cnt--; |
2e0fef85 | 900 | return cmd_iocb; |
dea3101e | 901 | } |
902 | ||
e59058c4 | 903 | /** |
3621a710 | 904 | * lpfc_sli_next_iocb_slot - Get next iocb slot in the ring |
e59058c4 JS |
905 | * @phba: Pointer to HBA context object. |
906 | * @pring: Pointer to driver SLI ring object. | |
907 | * | |
908 | * This function is called with hbalock held and the caller must post the | |
909 | * iocb without releasing the lock. If the caller releases the lock, | |
910 | * iocb slot returned by the function is not guaranteed to be available. | |
911 | * The function returns pointer to the next available iocb slot if there | |
912 | * is available slot in the ring, else it returns NULL. | |
913 | * If the get index of the ring is ahead of the put index, the function | |
914 | * will post an error attention event to the worker thread to take the | |
915 | * HBA to offline state. | |
916 | **/ | |
dea3101e | 917 | static IOCB_t * |
918 | lpfc_sli_next_iocb_slot (struct lpfc_hba *phba, struct lpfc_sli_ring *pring) | |
919 | { | |
34b02dcd | 920 | struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno]; |
dea3101e | 921 | uint32_t max_cmd_idx = pring->numCiocb; |
dea3101e | 922 | if ((pring->next_cmdidx == pring->cmdidx) && |
923 | (++pring->next_cmdidx >= max_cmd_idx)) | |
924 | pring->next_cmdidx = 0; | |
925 | ||
926 | if (unlikely(pring->local_getidx == pring->next_cmdidx)) { | |
927 | ||
928 | pring->local_getidx = le32_to_cpu(pgp->cmdGetInx); | |
929 | ||
930 | if (unlikely(pring->local_getidx >= max_cmd_idx)) { | |
931 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
e8b62011 | 932 | "0315 Ring %d issue: portCmdGet %d " |
025dfdaf | 933 | "is bigger than cmd ring %d\n", |
e8b62011 | 934 | pring->ringno, |
dea3101e | 935 | pring->local_getidx, max_cmd_idx); |
936 | ||
2e0fef85 | 937 | phba->link_state = LPFC_HBA_ERROR; |
dea3101e | 938 | /* |
939 | * All error attention handlers are posted to | |
940 | * worker thread | |
941 | */ | |
942 | phba->work_ha |= HA_ERATT; | |
943 | phba->work_hs = HS_FFER3; | |
92d7f7b0 | 944 | |
5e9d9b82 | 945 | lpfc_worker_wake_up(phba); |
dea3101e | 946 | |
947 | return NULL; | |
948 | } | |
949 | ||
950 | if (pring->local_getidx == pring->next_cmdidx) | |
951 | return NULL; | |
952 | } | |
953 | ||
ed957684 | 954 | return lpfc_cmd_iocb(phba, pring); |
dea3101e | 955 | } |
956 | ||
e59058c4 | 957 | /** |
3621a710 | 958 | * lpfc_sli_next_iotag - Get an iotag for the iocb |
e59058c4 JS |
959 | * @phba: Pointer to HBA context object. |
960 | * @iocbq: Pointer to driver iocb object. | |
961 | * | |
962 | * This function gets an iotag for the iocb. If there is no unused iotag and | |
963 | * the iocbq_lookup_len < 0xffff, this function allocates a bigger iotag_lookup | |
964 | * array and assigns a new iotag. | |
965 | * The function returns the allocated iotag if successful, else returns zero. | |
966 | * Zero is not a valid iotag. | |
967 | * The caller is not required to hold any lock. | |
968 | **/ | |
604a3e30 | 969 | uint16_t |
2e0fef85 | 970 | lpfc_sli_next_iotag(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq) |
dea3101e | 971 | { |
2e0fef85 JS |
972 | struct lpfc_iocbq **new_arr; |
973 | struct lpfc_iocbq **old_arr; | |
604a3e30 JB |
974 | size_t new_len; |
975 | struct lpfc_sli *psli = &phba->sli; | |
976 | uint16_t iotag; | |
dea3101e | 977 | |
2e0fef85 | 978 | spin_lock_irq(&phba->hbalock); |
604a3e30 JB |
979 | iotag = psli->last_iotag; |
980 | if(++iotag < psli->iocbq_lookup_len) { | |
981 | psli->last_iotag = iotag; | |
982 | psli->iocbq_lookup[iotag] = iocbq; | |
2e0fef85 | 983 | spin_unlock_irq(&phba->hbalock); |
604a3e30 JB |
984 | iocbq->iotag = iotag; |
985 | return iotag; | |
2e0fef85 | 986 | } else if (psli->iocbq_lookup_len < (0xffff |
604a3e30 JB |
987 | - LPFC_IOCBQ_LOOKUP_INCREMENT)) { |
988 | new_len = psli->iocbq_lookup_len + LPFC_IOCBQ_LOOKUP_INCREMENT; | |
2e0fef85 JS |
989 | spin_unlock_irq(&phba->hbalock); |
990 | new_arr = kzalloc(new_len * sizeof (struct lpfc_iocbq *), | |
604a3e30 JB |
991 | GFP_KERNEL); |
992 | if (new_arr) { | |
2e0fef85 | 993 | spin_lock_irq(&phba->hbalock); |
604a3e30 JB |
994 | old_arr = psli->iocbq_lookup; |
995 | if (new_len <= psli->iocbq_lookup_len) { | |
996 | /* highly unprobable case */ | |
997 | kfree(new_arr); | |
998 | iotag = psli->last_iotag; | |
999 | if(++iotag < psli->iocbq_lookup_len) { | |
1000 | psli->last_iotag = iotag; | |
1001 | psli->iocbq_lookup[iotag] = iocbq; | |
2e0fef85 | 1002 | spin_unlock_irq(&phba->hbalock); |
604a3e30 JB |
1003 | iocbq->iotag = iotag; |
1004 | return iotag; | |
1005 | } | |
2e0fef85 | 1006 | spin_unlock_irq(&phba->hbalock); |
604a3e30 JB |
1007 | return 0; |
1008 | } | |
1009 | if (psli->iocbq_lookup) | |
1010 | memcpy(new_arr, old_arr, | |
1011 | ((psli->last_iotag + 1) * | |
311464ec | 1012 | sizeof (struct lpfc_iocbq *))); |
604a3e30 JB |
1013 | psli->iocbq_lookup = new_arr; |
1014 | psli->iocbq_lookup_len = new_len; | |
1015 | psli->last_iotag = iotag; | |
1016 | psli->iocbq_lookup[iotag] = iocbq; | |
2e0fef85 | 1017 | spin_unlock_irq(&phba->hbalock); |
604a3e30 JB |
1018 | iocbq->iotag = iotag; |
1019 | kfree(old_arr); | |
1020 | return iotag; | |
1021 | } | |
8f6d98d2 | 1022 | } else |
2e0fef85 | 1023 | spin_unlock_irq(&phba->hbalock); |
dea3101e | 1024 | |
604a3e30 | 1025 | lpfc_printf_log(phba, KERN_ERR,LOG_SLI, |
e8b62011 JS |
1026 | "0318 Failed to allocate IOTAG.last IOTAG is %d\n", |
1027 | psli->last_iotag); | |
dea3101e | 1028 | |
604a3e30 | 1029 | return 0; |
dea3101e | 1030 | } |
1031 | ||
e59058c4 | 1032 | /** |
3621a710 | 1033 | * lpfc_sli_submit_iocb - Submit an iocb to the firmware |
e59058c4 JS |
1034 | * @phba: Pointer to HBA context object. |
1035 | * @pring: Pointer to driver SLI ring object. | |
1036 | * @iocb: Pointer to iocb slot in the ring. | |
1037 | * @nextiocb: Pointer to driver iocb object which need to be | |
1038 | * posted to firmware. | |
1039 | * | |
1040 | * This function is called with hbalock held to post a new iocb to | |
1041 | * the firmware. This function copies the new iocb to ring iocb slot and | |
1042 | * updates the ring pointers. It adds the new iocb to txcmplq if there is | |
1043 | * a completion call back for this iocb else the function will free the | |
1044 | * iocb object. | |
1045 | **/ | |
dea3101e | 1046 | static void |
1047 | lpfc_sli_submit_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
1048 | IOCB_t *iocb, struct lpfc_iocbq *nextiocb) | |
1049 | { | |
1050 | /* | |
604a3e30 | 1051 | * Set up an iotag |
dea3101e | 1052 | */ |
604a3e30 | 1053 | nextiocb->iocb.ulpIoTag = (nextiocb->iocb_cmpl) ? nextiocb->iotag : 0; |
dea3101e | 1054 | |
e2a0a9d6 | 1055 | |
a58cbd52 JS |
1056 | if (pring->ringno == LPFC_ELS_RING) { |
1057 | lpfc_debugfs_slow_ring_trc(phba, | |
1058 | "IOCB cmd ring: wd4:x%08x wd6:x%08x wd7:x%08x", | |
1059 | *(((uint32_t *) &nextiocb->iocb) + 4), | |
1060 | *(((uint32_t *) &nextiocb->iocb) + 6), | |
1061 | *(((uint32_t *) &nextiocb->iocb) + 7)); | |
1062 | } | |
1063 | ||
dea3101e | 1064 | /* |
1065 | * Issue iocb command to adapter | |
1066 | */ | |
92d7f7b0 | 1067 | lpfc_sli_pcimem_bcopy(&nextiocb->iocb, iocb, phba->iocb_cmd_size); |
dea3101e | 1068 | wmb(); |
1069 | pring->stats.iocb_cmd++; | |
1070 | ||
1071 | /* | |
1072 | * If there is no completion routine to call, we can release the | |
1073 | * IOCB buffer back right now. For IOCBs, like QUE_RING_BUF, | |
1074 | * that have no rsp ring completion, iocb_cmpl MUST be NULL. | |
1075 | */ | |
1076 | if (nextiocb->iocb_cmpl) | |
1077 | lpfc_sli_ringtxcmpl_put(phba, pring, nextiocb); | |
604a3e30 | 1078 | else |
2e0fef85 | 1079 | __lpfc_sli_release_iocbq(phba, nextiocb); |
dea3101e | 1080 | |
1081 | /* | |
1082 | * Let the HBA know what IOCB slot will be the next one the | |
1083 | * driver will put a command into. | |
1084 | */ | |
1085 | pring->cmdidx = pring->next_cmdidx; | |
ed957684 | 1086 | writel(pring->cmdidx, &phba->host_gp[pring->ringno].cmdPutInx); |
dea3101e | 1087 | } |
1088 | ||
e59058c4 | 1089 | /** |
3621a710 | 1090 | * lpfc_sli_update_full_ring - Update the chip attention register |
e59058c4 JS |
1091 | * @phba: Pointer to HBA context object. |
1092 | * @pring: Pointer to driver SLI ring object. | |
1093 | * | |
1094 | * The caller is not required to hold any lock for calling this function. | |
1095 | * This function updates the chip attention bits for the ring to inform firmware | |
1096 | * that there are pending work to be done for this ring and requests an | |
1097 | * interrupt when there is space available in the ring. This function is | |
1098 | * called when the driver is unable to post more iocbs to the ring due | |
1099 | * to unavailability of space in the ring. | |
1100 | **/ | |
dea3101e | 1101 | static void |
2e0fef85 | 1102 | lpfc_sli_update_full_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) |
dea3101e | 1103 | { |
1104 | int ringno = pring->ringno; | |
1105 | ||
1106 | pring->flag |= LPFC_CALL_RING_AVAILABLE; | |
1107 | ||
1108 | wmb(); | |
1109 | ||
1110 | /* | |
1111 | * Set ring 'ringno' to SET R0CE_REQ in Chip Att register. | |
1112 | * The HBA will tell us when an IOCB entry is available. | |
1113 | */ | |
1114 | writel((CA_R0ATT|CA_R0CE_REQ) << (ringno*4), phba->CAregaddr); | |
1115 | readl(phba->CAregaddr); /* flush */ | |
1116 | ||
1117 | pring->stats.iocb_cmd_full++; | |
1118 | } | |
1119 | ||
e59058c4 | 1120 | /** |
3621a710 | 1121 | * lpfc_sli_update_ring - Update chip attention register |
e59058c4 JS |
1122 | * @phba: Pointer to HBA context object. |
1123 | * @pring: Pointer to driver SLI ring object. | |
1124 | * | |
1125 | * This function updates the chip attention register bit for the | |
1126 | * given ring to inform HBA that there is more work to be done | |
1127 | * in this ring. The caller is not required to hold any lock. | |
1128 | **/ | |
dea3101e | 1129 | static void |
2e0fef85 | 1130 | lpfc_sli_update_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) |
dea3101e | 1131 | { |
1132 | int ringno = pring->ringno; | |
1133 | ||
1134 | /* | |
1135 | * Tell the HBA that there is work to do in this ring. | |
1136 | */ | |
34b02dcd JS |
1137 | if (!(phba->sli3_options & LPFC_SLI3_CRP_ENABLED)) { |
1138 | wmb(); | |
1139 | writel(CA_R0ATT << (ringno * 4), phba->CAregaddr); | |
1140 | readl(phba->CAregaddr); /* flush */ | |
1141 | } | |
dea3101e | 1142 | } |
1143 | ||
e59058c4 | 1144 | /** |
3621a710 | 1145 | * lpfc_sli_resume_iocb - Process iocbs in the txq |
e59058c4 JS |
1146 | * @phba: Pointer to HBA context object. |
1147 | * @pring: Pointer to driver SLI ring object. | |
1148 | * | |
1149 | * This function is called with hbalock held to post pending iocbs | |
1150 | * in the txq to the firmware. This function is called when driver | |
1151 | * detects space available in the ring. | |
1152 | **/ | |
dea3101e | 1153 | static void |
2e0fef85 | 1154 | lpfc_sli_resume_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) |
dea3101e | 1155 | { |
1156 | IOCB_t *iocb; | |
1157 | struct lpfc_iocbq *nextiocb; | |
1158 | ||
1159 | /* | |
1160 | * Check to see if: | |
1161 | * (a) there is anything on the txq to send | |
1162 | * (b) link is up | |
1163 | * (c) link attention events can be processed (fcp ring only) | |
1164 | * (d) IOCB processing is not blocked by the outstanding mbox command. | |
1165 | */ | |
1166 | if (pring->txq_cnt && | |
2e0fef85 | 1167 | lpfc_is_link_up(phba) && |
dea3101e | 1168 | (pring->ringno != phba->sli.fcp_ring || |
0b727fea | 1169 | phba->sli.sli_flag & LPFC_PROCESS_LA)) { |
dea3101e | 1170 | |
1171 | while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) && | |
1172 | (nextiocb = lpfc_sli_ringtx_get(phba, pring))) | |
1173 | lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb); | |
1174 | ||
1175 | if (iocb) | |
1176 | lpfc_sli_update_ring(phba, pring); | |
1177 | else | |
1178 | lpfc_sli_update_full_ring(phba, pring); | |
1179 | } | |
1180 | ||
1181 | return; | |
1182 | } | |
1183 | ||
e59058c4 | 1184 | /** |
3621a710 | 1185 | * lpfc_sli_next_hbq_slot - Get next hbq entry for the HBQ |
e59058c4 JS |
1186 | * @phba: Pointer to HBA context object. |
1187 | * @hbqno: HBQ number. | |
1188 | * | |
1189 | * This function is called with hbalock held to get the next | |
1190 | * available slot for the given HBQ. If there is free slot | |
1191 | * available for the HBQ it will return pointer to the next available | |
1192 | * HBQ entry else it will return NULL. | |
1193 | **/ | |
a6ababd2 | 1194 | static struct lpfc_hbq_entry * |
ed957684 JS |
1195 | lpfc_sli_next_hbq_slot(struct lpfc_hba *phba, uint32_t hbqno) |
1196 | { | |
1197 | struct hbq_s *hbqp = &phba->hbqs[hbqno]; | |
1198 | ||
1199 | if (hbqp->next_hbqPutIdx == hbqp->hbqPutIdx && | |
1200 | ++hbqp->next_hbqPutIdx >= hbqp->entry_count) | |
1201 | hbqp->next_hbqPutIdx = 0; | |
1202 | ||
1203 | if (unlikely(hbqp->local_hbqGetIdx == hbqp->next_hbqPutIdx)) { | |
92d7f7b0 | 1204 | uint32_t raw_index = phba->hbq_get[hbqno]; |
ed957684 JS |
1205 | uint32_t getidx = le32_to_cpu(raw_index); |
1206 | ||
1207 | hbqp->local_hbqGetIdx = getidx; | |
1208 | ||
1209 | if (unlikely(hbqp->local_hbqGetIdx >= hbqp->entry_count)) { | |
1210 | lpfc_printf_log(phba, KERN_ERR, | |
92d7f7b0 | 1211 | LOG_SLI | LOG_VPORT, |
e8b62011 | 1212 | "1802 HBQ %d: local_hbqGetIdx " |
ed957684 | 1213 | "%u is > than hbqp->entry_count %u\n", |
e8b62011 | 1214 | hbqno, hbqp->local_hbqGetIdx, |
ed957684 JS |
1215 | hbqp->entry_count); |
1216 | ||
1217 | phba->link_state = LPFC_HBA_ERROR; | |
1218 | return NULL; | |
1219 | } | |
1220 | ||
1221 | if (hbqp->local_hbqGetIdx == hbqp->next_hbqPutIdx) | |
1222 | return NULL; | |
1223 | } | |
1224 | ||
51ef4c26 JS |
1225 | return (struct lpfc_hbq_entry *) phba->hbqs[hbqno].hbq_virt + |
1226 | hbqp->hbqPutIdx; | |
ed957684 JS |
1227 | } |
1228 | ||
e59058c4 | 1229 | /** |
3621a710 | 1230 | * lpfc_sli_hbqbuf_free_all - Free all the hbq buffers |
e59058c4 JS |
1231 | * @phba: Pointer to HBA context object. |
1232 | * | |
1233 | * This function is called with no lock held to free all the | |
1234 | * hbq buffers while uninitializing the SLI interface. It also | |
1235 | * frees the HBQ buffers returned by the firmware but not yet | |
1236 | * processed by the upper layers. | |
1237 | **/ | |
ed957684 JS |
1238 | void |
1239 | lpfc_sli_hbqbuf_free_all(struct lpfc_hba *phba) | |
1240 | { | |
92d7f7b0 JS |
1241 | struct lpfc_dmabuf *dmabuf, *next_dmabuf; |
1242 | struct hbq_dmabuf *hbq_buf; | |
3163f725 | 1243 | unsigned long flags; |
51ef4c26 | 1244 | int i, hbq_count; |
3163f725 | 1245 | uint32_t hbqno; |
ed957684 | 1246 | |
51ef4c26 | 1247 | hbq_count = lpfc_sli_hbq_count(); |
ed957684 | 1248 | /* Return all memory used by all HBQs */ |
3163f725 | 1249 | spin_lock_irqsave(&phba->hbalock, flags); |
51ef4c26 JS |
1250 | for (i = 0; i < hbq_count; ++i) { |
1251 | list_for_each_entry_safe(dmabuf, next_dmabuf, | |
1252 | &phba->hbqs[i].hbq_buffer_list, list) { | |
1253 | hbq_buf = container_of(dmabuf, struct hbq_dmabuf, dbuf); | |
1254 | list_del(&hbq_buf->dbuf.list); | |
1255 | (phba->hbqs[i].hbq_free_buffer)(phba, hbq_buf); | |
1256 | } | |
a8adb832 | 1257 | phba->hbqs[i].buffer_count = 0; |
ed957684 | 1258 | } |
3163f725 | 1259 | /* Return all HBQ buffer that are in-fly */ |
3772a991 JS |
1260 | list_for_each_entry_safe(dmabuf, next_dmabuf, &phba->rb_pend_list, |
1261 | list) { | |
3163f725 JS |
1262 | hbq_buf = container_of(dmabuf, struct hbq_dmabuf, dbuf); |
1263 | list_del(&hbq_buf->dbuf.list); | |
1264 | if (hbq_buf->tag == -1) { | |
1265 | (phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer) | |
1266 | (phba, hbq_buf); | |
1267 | } else { | |
1268 | hbqno = hbq_buf->tag >> 16; | |
1269 | if (hbqno >= LPFC_MAX_HBQS) | |
1270 | (phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer) | |
1271 | (phba, hbq_buf); | |
1272 | else | |
1273 | (phba->hbqs[hbqno].hbq_free_buffer)(phba, | |
1274 | hbq_buf); | |
1275 | } | |
1276 | } | |
1277 | ||
1278 | /* Mark the HBQs not in use */ | |
1279 | phba->hbq_in_use = 0; | |
1280 | spin_unlock_irqrestore(&phba->hbalock, flags); | |
ed957684 JS |
1281 | } |
1282 | ||
e59058c4 | 1283 | /** |
3621a710 | 1284 | * lpfc_sli_hbq_to_firmware - Post the hbq buffer to firmware |
e59058c4 JS |
1285 | * @phba: Pointer to HBA context object. |
1286 | * @hbqno: HBQ number. | |
1287 | * @hbq_buf: Pointer to HBQ buffer. | |
1288 | * | |
1289 | * This function is called with the hbalock held to post a | |
1290 | * hbq buffer to the firmware. If the function finds an empty | |
1291 | * slot in the HBQ, it will post the buffer. The function will return | |
1292 | * pointer to the hbq entry if it successfully post the buffer | |
1293 | * else it will return NULL. | |
1294 | **/ | |
3772a991 | 1295 | static int |
ed957684 | 1296 | lpfc_sli_hbq_to_firmware(struct lpfc_hba *phba, uint32_t hbqno, |
92d7f7b0 | 1297 | struct hbq_dmabuf *hbq_buf) |
3772a991 JS |
1298 | { |
1299 | return phba->lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buf); | |
1300 | } | |
1301 | ||
1302 | /** | |
1303 | * lpfc_sli_hbq_to_firmware_s3 - Post the hbq buffer to SLI3 firmware | |
1304 | * @phba: Pointer to HBA context object. | |
1305 | * @hbqno: HBQ number. | |
1306 | * @hbq_buf: Pointer to HBQ buffer. | |
1307 | * | |
1308 | * This function is called with the hbalock held to post a hbq buffer to the | |
1309 | * firmware. If the function finds an empty slot in the HBQ, it will post the | |
1310 | * buffer and place it on the hbq_buffer_list. The function will return zero if | |
1311 | * it successfully post the buffer else it will return an error. | |
1312 | **/ | |
1313 | static int | |
1314 | lpfc_sli_hbq_to_firmware_s3(struct lpfc_hba *phba, uint32_t hbqno, | |
1315 | struct hbq_dmabuf *hbq_buf) | |
ed957684 JS |
1316 | { |
1317 | struct lpfc_hbq_entry *hbqe; | |
92d7f7b0 | 1318 | dma_addr_t physaddr = hbq_buf->dbuf.phys; |
ed957684 JS |
1319 | |
1320 | /* Get next HBQ entry slot to use */ | |
1321 | hbqe = lpfc_sli_next_hbq_slot(phba, hbqno); | |
1322 | if (hbqe) { | |
1323 | struct hbq_s *hbqp = &phba->hbqs[hbqno]; | |
1324 | ||
92d7f7b0 JS |
1325 | hbqe->bde.addrHigh = le32_to_cpu(putPaddrHigh(physaddr)); |
1326 | hbqe->bde.addrLow = le32_to_cpu(putPaddrLow(physaddr)); | |
51ef4c26 | 1327 | hbqe->bde.tus.f.bdeSize = hbq_buf->size; |
ed957684 | 1328 | hbqe->bde.tus.f.bdeFlags = 0; |
92d7f7b0 JS |
1329 | hbqe->bde.tus.w = le32_to_cpu(hbqe->bde.tus.w); |
1330 | hbqe->buffer_tag = le32_to_cpu(hbq_buf->tag); | |
1331 | /* Sync SLIM */ | |
ed957684 JS |
1332 | hbqp->hbqPutIdx = hbqp->next_hbqPutIdx; |
1333 | writel(hbqp->hbqPutIdx, phba->hbq_put + hbqno); | |
92d7f7b0 | 1334 | /* flush */ |
ed957684 | 1335 | readl(phba->hbq_put + hbqno); |
51ef4c26 | 1336 | list_add_tail(&hbq_buf->dbuf.list, &hbqp->hbq_buffer_list); |
3772a991 JS |
1337 | return 0; |
1338 | } else | |
1339 | return -ENOMEM; | |
ed957684 JS |
1340 | } |
1341 | ||
4f774513 JS |
1342 | /** |
1343 | * lpfc_sli_hbq_to_firmware_s4 - Post the hbq buffer to SLI4 firmware | |
1344 | * @phba: Pointer to HBA context object. | |
1345 | * @hbqno: HBQ number. | |
1346 | * @hbq_buf: Pointer to HBQ buffer. | |
1347 | * | |
1348 | * This function is called with the hbalock held to post an RQE to the SLI4 | |
1349 | * firmware. If able to post the RQE to the RQ it will queue the hbq entry to | |
1350 | * the hbq_buffer_list and return zero, otherwise it will return an error. | |
1351 | **/ | |
1352 | static int | |
1353 | lpfc_sli_hbq_to_firmware_s4(struct lpfc_hba *phba, uint32_t hbqno, | |
1354 | struct hbq_dmabuf *hbq_buf) | |
1355 | { | |
1356 | int rc; | |
1357 | struct lpfc_rqe hrqe; | |
1358 | struct lpfc_rqe drqe; | |
1359 | ||
1360 | hrqe.address_lo = putPaddrLow(hbq_buf->hbuf.phys); | |
1361 | hrqe.address_hi = putPaddrHigh(hbq_buf->hbuf.phys); | |
1362 | drqe.address_lo = putPaddrLow(hbq_buf->dbuf.phys); | |
1363 | drqe.address_hi = putPaddrHigh(hbq_buf->dbuf.phys); | |
1364 | rc = lpfc_sli4_rq_put(phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq, | |
1365 | &hrqe, &drqe); | |
1366 | if (rc < 0) | |
1367 | return rc; | |
1368 | hbq_buf->tag = rc; | |
1369 | list_add_tail(&hbq_buf->dbuf.list, &phba->hbqs[hbqno].hbq_buffer_list); | |
1370 | return 0; | |
1371 | } | |
1372 | ||
e59058c4 | 1373 | /* HBQ for ELS and CT traffic. */ |
92d7f7b0 JS |
1374 | static struct lpfc_hbq_init lpfc_els_hbq = { |
1375 | .rn = 1, | |
1376 | .entry_count = 200, | |
1377 | .mask_count = 0, | |
1378 | .profile = 0, | |
51ef4c26 | 1379 | .ring_mask = (1 << LPFC_ELS_RING), |
92d7f7b0 | 1380 | .buffer_count = 0, |
a257bf90 JS |
1381 | .init_count = 40, |
1382 | .add_count = 40, | |
92d7f7b0 | 1383 | }; |
ed957684 | 1384 | |
e59058c4 | 1385 | /* HBQ for the extra ring if needed */ |
51ef4c26 JS |
1386 | static struct lpfc_hbq_init lpfc_extra_hbq = { |
1387 | .rn = 1, | |
1388 | .entry_count = 200, | |
1389 | .mask_count = 0, | |
1390 | .profile = 0, | |
1391 | .ring_mask = (1 << LPFC_EXTRA_RING), | |
1392 | .buffer_count = 0, | |
1393 | .init_count = 0, | |
1394 | .add_count = 5, | |
1395 | }; | |
1396 | ||
e59058c4 | 1397 | /* Array of HBQs */ |
78b2d852 | 1398 | struct lpfc_hbq_init *lpfc_hbq_defs[] = { |
92d7f7b0 | 1399 | &lpfc_els_hbq, |
51ef4c26 | 1400 | &lpfc_extra_hbq, |
92d7f7b0 | 1401 | }; |
ed957684 | 1402 | |
e59058c4 | 1403 | /** |
3621a710 | 1404 | * lpfc_sli_hbqbuf_fill_hbqs - Post more hbq buffers to HBQ |
e59058c4 JS |
1405 | * @phba: Pointer to HBA context object. |
1406 | * @hbqno: HBQ number. | |
1407 | * @count: Number of HBQ buffers to be posted. | |
1408 | * | |
d7c255b2 JS |
1409 | * This function is called with no lock held to post more hbq buffers to the |
1410 | * given HBQ. The function returns the number of HBQ buffers successfully | |
1411 | * posted. | |
e59058c4 | 1412 | **/ |
311464ec | 1413 | static int |
92d7f7b0 | 1414 | lpfc_sli_hbqbuf_fill_hbqs(struct lpfc_hba *phba, uint32_t hbqno, uint32_t count) |
ed957684 | 1415 | { |
d7c255b2 | 1416 | uint32_t i, posted = 0; |
3163f725 | 1417 | unsigned long flags; |
92d7f7b0 | 1418 | struct hbq_dmabuf *hbq_buffer; |
d7c255b2 | 1419 | LIST_HEAD(hbq_buf_list); |
eafe1df9 | 1420 | if (!phba->hbqs[hbqno].hbq_alloc_buffer) |
51ef4c26 | 1421 | return 0; |
51ef4c26 | 1422 | |
d7c255b2 JS |
1423 | if ((phba->hbqs[hbqno].buffer_count + count) > |
1424 | lpfc_hbq_defs[hbqno]->entry_count) | |
1425 | count = lpfc_hbq_defs[hbqno]->entry_count - | |
1426 | phba->hbqs[hbqno].buffer_count; | |
1427 | if (!count) | |
1428 | return 0; | |
1429 | /* Allocate HBQ entries */ | |
1430 | for (i = 0; i < count; i++) { | |
1431 | hbq_buffer = (phba->hbqs[hbqno].hbq_alloc_buffer)(phba); | |
1432 | if (!hbq_buffer) | |
1433 | break; | |
1434 | list_add_tail(&hbq_buffer->dbuf.list, &hbq_buf_list); | |
1435 | } | |
3163f725 JS |
1436 | /* Check whether HBQ is still in use */ |
1437 | spin_lock_irqsave(&phba->hbalock, flags); | |
eafe1df9 | 1438 | if (!phba->hbq_in_use) |
d7c255b2 JS |
1439 | goto err; |
1440 | while (!list_empty(&hbq_buf_list)) { | |
1441 | list_remove_head(&hbq_buf_list, hbq_buffer, struct hbq_dmabuf, | |
1442 | dbuf.list); | |
1443 | hbq_buffer->tag = (phba->hbqs[hbqno].buffer_count | | |
1444 | (hbqno << 16)); | |
3772a991 | 1445 | if (!lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer)) { |
a8adb832 | 1446 | phba->hbqs[hbqno].buffer_count++; |
d7c255b2 JS |
1447 | posted++; |
1448 | } else | |
51ef4c26 | 1449 | (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer); |
ed957684 | 1450 | } |
3163f725 | 1451 | spin_unlock_irqrestore(&phba->hbalock, flags); |
d7c255b2 JS |
1452 | return posted; |
1453 | err: | |
eafe1df9 | 1454 | spin_unlock_irqrestore(&phba->hbalock, flags); |
d7c255b2 JS |
1455 | while (!list_empty(&hbq_buf_list)) { |
1456 | list_remove_head(&hbq_buf_list, hbq_buffer, struct hbq_dmabuf, | |
1457 | dbuf.list); | |
1458 | (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer); | |
1459 | } | |
1460 | return 0; | |
ed957684 JS |
1461 | } |
1462 | ||
e59058c4 | 1463 | /** |
3621a710 | 1464 | * lpfc_sli_hbqbuf_add_hbqs - Post more HBQ buffers to firmware |
e59058c4 JS |
1465 | * @phba: Pointer to HBA context object. |
1466 | * @qno: HBQ number. | |
1467 | * | |
1468 | * This function posts more buffers to the HBQ. This function | |
d7c255b2 JS |
1469 | * is called with no lock held. The function returns the number of HBQ entries |
1470 | * successfully allocated. | |
e59058c4 | 1471 | **/ |
92d7f7b0 JS |
1472 | int |
1473 | lpfc_sli_hbqbuf_add_hbqs(struct lpfc_hba *phba, uint32_t qno) | |
ed957684 | 1474 | { |
92d7f7b0 JS |
1475 | return(lpfc_sli_hbqbuf_fill_hbqs(phba, qno, |
1476 | lpfc_hbq_defs[qno]->add_count)); | |
1477 | } | |
ed957684 | 1478 | |
e59058c4 | 1479 | /** |
3621a710 | 1480 | * lpfc_sli_hbqbuf_init_hbqs - Post initial buffers to the HBQ |
e59058c4 JS |
1481 | * @phba: Pointer to HBA context object. |
1482 | * @qno: HBQ queue number. | |
1483 | * | |
1484 | * This function is called from SLI initialization code path with | |
1485 | * no lock held to post initial HBQ buffers to firmware. The | |
d7c255b2 | 1486 | * function returns the number of HBQ entries successfully allocated. |
e59058c4 | 1487 | **/ |
a6ababd2 | 1488 | static int |
92d7f7b0 JS |
1489 | lpfc_sli_hbqbuf_init_hbqs(struct lpfc_hba *phba, uint32_t qno) |
1490 | { | |
1491 | return(lpfc_sli_hbqbuf_fill_hbqs(phba, qno, | |
1492 | lpfc_hbq_defs[qno]->init_count)); | |
ed957684 JS |
1493 | } |
1494 | ||
3772a991 JS |
1495 | /** |
1496 | * lpfc_sli_hbqbuf_get - Remove the first hbq off of an hbq list | |
1497 | * @phba: Pointer to HBA context object. | |
1498 | * @hbqno: HBQ number. | |
1499 | * | |
1500 | * This function removes the first hbq buffer on an hbq list and returns a | |
1501 | * pointer to that buffer. If it finds no buffers on the list it returns NULL. | |
1502 | **/ | |
1503 | static struct hbq_dmabuf * | |
1504 | lpfc_sli_hbqbuf_get(struct list_head *rb_list) | |
1505 | { | |
1506 | struct lpfc_dmabuf *d_buf; | |
1507 | ||
1508 | list_remove_head(rb_list, d_buf, struct lpfc_dmabuf, list); | |
1509 | if (!d_buf) | |
1510 | return NULL; | |
1511 | return container_of(d_buf, struct hbq_dmabuf, dbuf); | |
1512 | } | |
1513 | ||
e59058c4 | 1514 | /** |
3621a710 | 1515 | * lpfc_sli_hbqbuf_find - Find the hbq buffer associated with a tag |
e59058c4 JS |
1516 | * @phba: Pointer to HBA context object. |
1517 | * @tag: Tag of the hbq buffer. | |
1518 | * | |
1519 | * This function is called with hbalock held. This function searches | |
1520 | * for the hbq buffer associated with the given tag in the hbq buffer | |
1521 | * list. If it finds the hbq buffer, it returns the hbq_buffer other wise | |
1522 | * it returns NULL. | |
1523 | **/ | |
a6ababd2 | 1524 | static struct hbq_dmabuf * |
92d7f7b0 | 1525 | lpfc_sli_hbqbuf_find(struct lpfc_hba *phba, uint32_t tag) |
ed957684 | 1526 | { |
92d7f7b0 JS |
1527 | struct lpfc_dmabuf *d_buf; |
1528 | struct hbq_dmabuf *hbq_buf; | |
51ef4c26 JS |
1529 | uint32_t hbqno; |
1530 | ||
1531 | hbqno = tag >> 16; | |
a0a74e45 | 1532 | if (hbqno >= LPFC_MAX_HBQS) |
51ef4c26 | 1533 | return NULL; |
ed957684 | 1534 | |
3772a991 | 1535 | spin_lock_irq(&phba->hbalock); |
51ef4c26 | 1536 | list_for_each_entry(d_buf, &phba->hbqs[hbqno].hbq_buffer_list, list) { |
92d7f7b0 | 1537 | hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf); |
51ef4c26 | 1538 | if (hbq_buf->tag == tag) { |
3772a991 | 1539 | spin_unlock_irq(&phba->hbalock); |
92d7f7b0 | 1540 | return hbq_buf; |
ed957684 JS |
1541 | } |
1542 | } | |
3772a991 | 1543 | spin_unlock_irq(&phba->hbalock); |
92d7f7b0 | 1544 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI | LOG_VPORT, |
e8b62011 | 1545 | "1803 Bad hbq tag. Data: x%x x%x\n", |
a8adb832 | 1546 | tag, phba->hbqs[tag >> 16].buffer_count); |
92d7f7b0 | 1547 | return NULL; |
ed957684 JS |
1548 | } |
1549 | ||
e59058c4 | 1550 | /** |
3621a710 | 1551 | * lpfc_sli_free_hbq - Give back the hbq buffer to firmware |
e59058c4 JS |
1552 | * @phba: Pointer to HBA context object. |
1553 | * @hbq_buffer: Pointer to HBQ buffer. | |
1554 | * | |
1555 | * This function is called with hbalock. This function gives back | |
1556 | * the hbq buffer to firmware. If the HBQ does not have space to | |
1557 | * post the buffer, it will free the buffer. | |
1558 | **/ | |
ed957684 | 1559 | void |
51ef4c26 | 1560 | lpfc_sli_free_hbq(struct lpfc_hba *phba, struct hbq_dmabuf *hbq_buffer) |
ed957684 JS |
1561 | { |
1562 | uint32_t hbqno; | |
1563 | ||
51ef4c26 JS |
1564 | if (hbq_buffer) { |
1565 | hbqno = hbq_buffer->tag >> 16; | |
3772a991 | 1566 | if (lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer)) |
51ef4c26 | 1567 | (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer); |
ed957684 JS |
1568 | } |
1569 | } | |
1570 | ||
e59058c4 | 1571 | /** |
3621a710 | 1572 | * lpfc_sli_chk_mbx_command - Check if the mailbox is a legitimate mailbox |
e59058c4 JS |
1573 | * @mbxCommand: mailbox command code. |
1574 | * | |
1575 | * This function is called by the mailbox event handler function to verify | |
1576 | * that the completed mailbox command is a legitimate mailbox command. If the | |
1577 | * completed mailbox is not known to the function, it will return MBX_SHUTDOWN | |
1578 | * and the mailbox event handler will take the HBA offline. | |
1579 | **/ | |
dea3101e | 1580 | static int |
1581 | lpfc_sli_chk_mbx_command(uint8_t mbxCommand) | |
1582 | { | |
1583 | uint8_t ret; | |
1584 | ||
1585 | switch (mbxCommand) { | |
1586 | case MBX_LOAD_SM: | |
1587 | case MBX_READ_NV: | |
1588 | case MBX_WRITE_NV: | |
a8adb832 | 1589 | case MBX_WRITE_VPARMS: |
dea3101e | 1590 | case MBX_RUN_BIU_DIAG: |
1591 | case MBX_INIT_LINK: | |
1592 | case MBX_DOWN_LINK: | |
1593 | case MBX_CONFIG_LINK: | |
1594 | case MBX_CONFIG_RING: | |
1595 | case MBX_RESET_RING: | |
1596 | case MBX_READ_CONFIG: | |
1597 | case MBX_READ_RCONFIG: | |
1598 | case MBX_READ_SPARM: | |
1599 | case MBX_READ_STATUS: | |
1600 | case MBX_READ_RPI: | |
1601 | case MBX_READ_XRI: | |
1602 | case MBX_READ_REV: | |
1603 | case MBX_READ_LNK_STAT: | |
1604 | case MBX_REG_LOGIN: | |
1605 | case MBX_UNREG_LOGIN: | |
1606 | case MBX_READ_LA: | |
1607 | case MBX_CLEAR_LA: | |
1608 | case MBX_DUMP_MEMORY: | |
1609 | case MBX_DUMP_CONTEXT: | |
1610 | case MBX_RUN_DIAGS: | |
1611 | case MBX_RESTART: | |
1612 | case MBX_UPDATE_CFG: | |
1613 | case MBX_DOWN_LOAD: | |
1614 | case MBX_DEL_LD_ENTRY: | |
1615 | case MBX_RUN_PROGRAM: | |
1616 | case MBX_SET_MASK: | |
09372820 | 1617 | case MBX_SET_VARIABLE: |
dea3101e | 1618 | case MBX_UNREG_D_ID: |
41415862 | 1619 | case MBX_KILL_BOARD: |
dea3101e | 1620 | case MBX_CONFIG_FARP: |
41415862 | 1621 | case MBX_BEACON: |
dea3101e | 1622 | case MBX_LOAD_AREA: |
1623 | case MBX_RUN_BIU_DIAG64: | |
1624 | case MBX_CONFIG_PORT: | |
1625 | case MBX_READ_SPARM64: | |
1626 | case MBX_READ_RPI64: | |
1627 | case MBX_REG_LOGIN64: | |
1628 | case MBX_READ_LA64: | |
09372820 | 1629 | case MBX_WRITE_WWN: |
dea3101e | 1630 | case MBX_SET_DEBUG: |
1631 | case MBX_LOAD_EXP_ROM: | |
57127f15 | 1632 | case MBX_ASYNCEVT_ENABLE: |
92d7f7b0 JS |
1633 | case MBX_REG_VPI: |
1634 | case MBX_UNREG_VPI: | |
858c9f6c | 1635 | case MBX_HEARTBEAT: |
84774a4d JS |
1636 | case MBX_PORT_CAPABILITIES: |
1637 | case MBX_PORT_IOV_CONTROL: | |
04c68496 JS |
1638 | case MBX_SLI4_CONFIG: |
1639 | case MBX_SLI4_REQ_FTRS: | |
1640 | case MBX_REG_FCFI: | |
1641 | case MBX_UNREG_FCFI: | |
1642 | case MBX_REG_VFI: | |
1643 | case MBX_UNREG_VFI: | |
1644 | case MBX_INIT_VPI: | |
1645 | case MBX_INIT_VFI: | |
1646 | case MBX_RESUME_RPI: | |
dea3101e | 1647 | ret = mbxCommand; |
1648 | break; | |
1649 | default: | |
1650 | ret = MBX_SHUTDOWN; | |
1651 | break; | |
1652 | } | |
2e0fef85 | 1653 | return ret; |
dea3101e | 1654 | } |
e59058c4 JS |
1655 | |
1656 | /** | |
3621a710 | 1657 | * lpfc_sli_wake_mbox_wait - lpfc_sli_issue_mbox_wait mbox completion handler |
e59058c4 JS |
1658 | * @phba: Pointer to HBA context object. |
1659 | * @pmboxq: Pointer to mailbox command. | |
1660 | * | |
1661 | * This is completion handler function for mailbox commands issued from | |
1662 | * lpfc_sli_issue_mbox_wait function. This function is called by the | |
1663 | * mailbox event handler function with no lock held. This function | |
1664 | * will wake up thread waiting on the wait queue pointed by context1 | |
1665 | * of the mailbox. | |
1666 | **/ | |
04c68496 | 1667 | void |
2e0fef85 | 1668 | lpfc_sli_wake_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq) |
dea3101e | 1669 | { |
1670 | wait_queue_head_t *pdone_q; | |
858c9f6c | 1671 | unsigned long drvr_flag; |
dea3101e | 1672 | |
1673 | /* | |
1674 | * If pdone_q is empty, the driver thread gave up waiting and | |
1675 | * continued running. | |
1676 | */ | |
7054a606 | 1677 | pmboxq->mbox_flag |= LPFC_MBX_WAKE; |
858c9f6c | 1678 | spin_lock_irqsave(&phba->hbalock, drvr_flag); |
dea3101e | 1679 | pdone_q = (wait_queue_head_t *) pmboxq->context1; |
1680 | if (pdone_q) | |
1681 | wake_up_interruptible(pdone_q); | |
858c9f6c | 1682 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); |
dea3101e | 1683 | return; |
1684 | } | |
1685 | ||
e59058c4 JS |
1686 | |
1687 | /** | |
3621a710 | 1688 | * lpfc_sli_def_mbox_cmpl - Default mailbox completion handler |
e59058c4 JS |
1689 | * @phba: Pointer to HBA context object. |
1690 | * @pmb: Pointer to mailbox object. | |
1691 | * | |
1692 | * This function is the default mailbox completion handler. It | |
1693 | * frees the memory resources associated with the completed mailbox | |
1694 | * command. If the completed command is a REG_LOGIN mailbox command, | |
1695 | * this function will issue a UREG_LOGIN to re-claim the RPI. | |
1696 | **/ | |
dea3101e | 1697 | void |
2e0fef85 | 1698 | lpfc_sli_def_mbox_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) |
dea3101e | 1699 | { |
1700 | struct lpfc_dmabuf *mp; | |
04c68496 | 1701 | uint16_t rpi, vpi; |
7054a606 JS |
1702 | int rc; |
1703 | ||
dea3101e | 1704 | mp = (struct lpfc_dmabuf *) (pmb->context1); |
7054a606 | 1705 | |
dea3101e | 1706 | if (mp) { |
1707 | lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
1708 | kfree(mp); | |
1709 | } | |
7054a606 | 1710 | |
04c68496 JS |
1711 | if ((pmb->u.mb.mbxCommand == MBX_UNREG_LOGIN) && |
1712 | (phba->sli_rev == LPFC_SLI_REV4)) | |
1713 | lpfc_sli4_free_rpi(phba, pmb->u.mb.un.varUnregLogin.rpi); | |
1714 | ||
7054a606 JS |
1715 | /* |
1716 | * If a REG_LOGIN succeeded after node is destroyed or node | |
1717 | * is in re-discovery driver need to cleanup the RPI. | |
1718 | */ | |
2e0fef85 | 1719 | if (!(phba->pport->load_flag & FC_UNLOADING) && |
04c68496 JS |
1720 | pmb->u.mb.mbxCommand == MBX_REG_LOGIN64 && |
1721 | !pmb->u.mb.mbxStatus) { | |
1722 | rpi = pmb->u.mb.un.varWords[0]; | |
1723 | vpi = pmb->u.mb.un.varRegLogin.vpi - phba->vpi_base; | |
1724 | lpfc_unreg_login(phba, vpi, rpi, pmb); | |
92d7f7b0 | 1725 | pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; |
7054a606 JS |
1726 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); |
1727 | if (rc != MBX_NOT_FINISHED) | |
1728 | return; | |
1729 | } | |
1730 | ||
04c68496 JS |
1731 | if (bf_get(lpfc_mqe_command, &pmb->u.mqe) == MBX_SLI4_CONFIG) |
1732 | lpfc_sli4_mbox_cmd_free(phba, pmb); | |
1733 | else | |
1734 | mempool_free(pmb, phba->mbox_mem_pool); | |
dea3101e | 1735 | } |
1736 | ||
e59058c4 | 1737 | /** |
3621a710 | 1738 | * lpfc_sli_handle_mb_event - Handle mailbox completions from firmware |
e59058c4 JS |
1739 | * @phba: Pointer to HBA context object. |
1740 | * | |
1741 | * This function is called with no lock held. This function processes all | |
1742 | * the completed mailbox commands and gives it to upper layers. The interrupt | |
1743 | * service routine processes mailbox completion interrupt and adds completed | |
1744 | * mailbox commands to the mboxq_cmpl queue and signals the worker thread. | |
1745 | * Worker thread call lpfc_sli_handle_mb_event, which will return the | |
1746 | * completed mailbox commands in mboxq_cmpl queue to the upper layers. This | |
1747 | * function returns the mailbox commands to the upper layer by calling the | |
1748 | * completion handler function of each mailbox. | |
1749 | **/ | |
dea3101e | 1750 | int |
2e0fef85 | 1751 | lpfc_sli_handle_mb_event(struct lpfc_hba *phba) |
dea3101e | 1752 | { |
92d7f7b0 | 1753 | MAILBOX_t *pmbox; |
dea3101e | 1754 | LPFC_MBOXQ_t *pmb; |
92d7f7b0 JS |
1755 | int rc; |
1756 | LIST_HEAD(cmplq); | |
dea3101e | 1757 | |
1758 | phba->sli.slistat.mbox_event++; | |
1759 | ||
92d7f7b0 JS |
1760 | /* Get all completed mailboxe buffers into the cmplq */ |
1761 | spin_lock_irq(&phba->hbalock); | |
1762 | list_splice_init(&phba->sli.mboxq_cmpl, &cmplq); | |
1763 | spin_unlock_irq(&phba->hbalock); | |
dea3101e | 1764 | |
92d7f7b0 JS |
1765 | /* Get a Mailbox buffer to setup mailbox commands for callback */ |
1766 | do { | |
1767 | list_remove_head(&cmplq, pmb, LPFC_MBOXQ_t, list); | |
1768 | if (pmb == NULL) | |
1769 | break; | |
2e0fef85 | 1770 | |
04c68496 | 1771 | pmbox = &pmb->u.mb; |
dea3101e | 1772 | |
858c9f6c JS |
1773 | if (pmbox->mbxCommand != MBX_HEARTBEAT) { |
1774 | if (pmb->vport) { | |
1775 | lpfc_debugfs_disc_trc(pmb->vport, | |
1776 | LPFC_DISC_TRC_MBOX_VPORT, | |
1777 | "MBOX cmpl vport: cmd:x%x mb:x%x x%x", | |
1778 | (uint32_t)pmbox->mbxCommand, | |
1779 | pmbox->un.varWords[0], | |
1780 | pmbox->un.varWords[1]); | |
1781 | } | |
1782 | else { | |
1783 | lpfc_debugfs_disc_trc(phba->pport, | |
1784 | LPFC_DISC_TRC_MBOX, | |
1785 | "MBOX cmpl: cmd:x%x mb:x%x x%x", | |
1786 | (uint32_t)pmbox->mbxCommand, | |
1787 | pmbox->un.varWords[0], | |
1788 | pmbox->un.varWords[1]); | |
1789 | } | |
1790 | } | |
1791 | ||
dea3101e | 1792 | /* |
1793 | * It is a fatal error if unknown mbox command completion. | |
1794 | */ | |
1795 | if (lpfc_sli_chk_mbx_command(pmbox->mbxCommand) == | |
1796 | MBX_SHUTDOWN) { | |
dea3101e | 1797 | /* Unknow mailbox command compl */ |
92d7f7b0 | 1798 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, |
e8b62011 | 1799 | "(%d):0323 Unknown Mailbox command " |
04c68496 | 1800 | "x%x (x%x) Cmpl\n", |
92d7f7b0 | 1801 | pmb->vport ? pmb->vport->vpi : 0, |
04c68496 JS |
1802 | pmbox->mbxCommand, |
1803 | lpfc_sli4_mbox_opcode_get(phba, pmb)); | |
2e0fef85 | 1804 | phba->link_state = LPFC_HBA_ERROR; |
dea3101e | 1805 | phba->work_hs = HS_FFER3; |
1806 | lpfc_handle_eratt(phba); | |
92d7f7b0 | 1807 | continue; |
dea3101e | 1808 | } |
1809 | ||
dea3101e | 1810 | if (pmbox->mbxStatus) { |
1811 | phba->sli.slistat.mbox_stat_err++; | |
1812 | if (pmbox->mbxStatus == MBXERR_NO_RESOURCES) { | |
1813 | /* Mbox cmd cmpl error - RETRYing */ | |
92d7f7b0 JS |
1814 | lpfc_printf_log(phba, KERN_INFO, |
1815 | LOG_MBOX | LOG_SLI, | |
e8b62011 | 1816 | "(%d):0305 Mbox cmd cmpl " |
92d7f7b0 | 1817 | "error - RETRYing Data: x%x " |
04c68496 | 1818 | "(x%x) x%x x%x x%x\n", |
92d7f7b0 JS |
1819 | pmb->vport ? pmb->vport->vpi :0, |
1820 | pmbox->mbxCommand, | |
04c68496 JS |
1821 | lpfc_sli4_mbox_opcode_get(phba, |
1822 | pmb), | |
92d7f7b0 JS |
1823 | pmbox->mbxStatus, |
1824 | pmbox->un.varWords[0], | |
1825 | pmb->vport->port_state); | |
dea3101e | 1826 | pmbox->mbxStatus = 0; |
1827 | pmbox->mbxOwner = OWN_HOST; | |
dea3101e | 1828 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); |
04c68496 | 1829 | if (rc != MBX_NOT_FINISHED) |
92d7f7b0 | 1830 | continue; |
dea3101e | 1831 | } |
1832 | } | |
1833 | ||
1834 | /* Mailbox cmd <cmd> Cmpl <cmpl> */ | |
92d7f7b0 | 1835 | lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI, |
04c68496 | 1836 | "(%d):0307 Mailbox cmd x%x (x%x) Cmpl x%p " |
dea3101e | 1837 | "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x\n", |
92d7f7b0 | 1838 | pmb->vport ? pmb->vport->vpi : 0, |
dea3101e | 1839 | pmbox->mbxCommand, |
04c68496 | 1840 | lpfc_sli4_mbox_opcode_get(phba, pmb), |
dea3101e | 1841 | pmb->mbox_cmpl, |
1842 | *((uint32_t *) pmbox), | |
1843 | pmbox->un.varWords[0], | |
1844 | pmbox->un.varWords[1], | |
1845 | pmbox->un.varWords[2], | |
1846 | pmbox->un.varWords[3], | |
1847 | pmbox->un.varWords[4], | |
1848 | pmbox->un.varWords[5], | |
1849 | pmbox->un.varWords[6], | |
1850 | pmbox->un.varWords[7]); | |
1851 | ||
92d7f7b0 | 1852 | if (pmb->mbox_cmpl) |
dea3101e | 1853 | pmb->mbox_cmpl(phba,pmb); |
92d7f7b0 JS |
1854 | } while (1); |
1855 | return 0; | |
1856 | } | |
dea3101e | 1857 | |
e59058c4 | 1858 | /** |
3621a710 | 1859 | * lpfc_sli_get_buff - Get the buffer associated with the buffer tag |
e59058c4 JS |
1860 | * @phba: Pointer to HBA context object. |
1861 | * @pring: Pointer to driver SLI ring object. | |
1862 | * @tag: buffer tag. | |
1863 | * | |
1864 | * This function is called with no lock held. When QUE_BUFTAG_BIT bit | |
1865 | * is set in the tag the buffer is posted for a particular exchange, | |
1866 | * the function will return the buffer without replacing the buffer. | |
1867 | * If the buffer is for unsolicited ELS or CT traffic, this function | |
1868 | * returns the buffer and also posts another buffer to the firmware. | |
1869 | **/ | |
76bb24ef JS |
1870 | static struct lpfc_dmabuf * |
1871 | lpfc_sli_get_buff(struct lpfc_hba *phba, | |
9f1e1b50 JS |
1872 | struct lpfc_sli_ring *pring, |
1873 | uint32_t tag) | |
76bb24ef | 1874 | { |
9f1e1b50 JS |
1875 | struct hbq_dmabuf *hbq_entry; |
1876 | ||
76bb24ef JS |
1877 | if (tag & QUE_BUFTAG_BIT) |
1878 | return lpfc_sli_ring_taggedbuf_get(phba, pring, tag); | |
9f1e1b50 JS |
1879 | hbq_entry = lpfc_sli_hbqbuf_find(phba, tag); |
1880 | if (!hbq_entry) | |
1881 | return NULL; | |
1882 | return &hbq_entry->dbuf; | |
76bb24ef | 1883 | } |
57127f15 | 1884 | |
3772a991 JS |
1885 | /** |
1886 | * lpfc_complete_unsol_iocb - Complete an unsolicited sequence | |
1887 | * @phba: Pointer to HBA context object. | |
1888 | * @pring: Pointer to driver SLI ring object. | |
1889 | * @saveq: Pointer to the iocbq struct representing the sequence starting frame. | |
1890 | * @fch_r_ctl: the r_ctl for the first frame of the sequence. | |
1891 | * @fch_type: the type for the first frame of the sequence. | |
1892 | * | |
1893 | * This function is called with no lock held. This function uses the r_ctl and | |
1894 | * type of the received sequence to find the correct callback function to call | |
1895 | * to process the sequence. | |
1896 | **/ | |
1897 | static int | |
1898 | lpfc_complete_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
1899 | struct lpfc_iocbq *saveq, uint32_t fch_r_ctl, | |
1900 | uint32_t fch_type) | |
1901 | { | |
1902 | int i; | |
1903 | ||
1904 | /* unSolicited Responses */ | |
1905 | if (pring->prt[0].profile) { | |
1906 | if (pring->prt[0].lpfc_sli_rcv_unsol_event) | |
1907 | (pring->prt[0].lpfc_sli_rcv_unsol_event) (phba, pring, | |
1908 | saveq); | |
1909 | return 1; | |
1910 | } | |
1911 | /* We must search, based on rctl / type | |
1912 | for the right routine */ | |
1913 | for (i = 0; i < pring->num_mask; i++) { | |
1914 | if ((pring->prt[i].rctl == fch_r_ctl) && | |
1915 | (pring->prt[i].type == fch_type)) { | |
1916 | if (pring->prt[i].lpfc_sli_rcv_unsol_event) | |
1917 | (pring->prt[i].lpfc_sli_rcv_unsol_event) | |
1918 | (phba, pring, saveq); | |
1919 | return 1; | |
1920 | } | |
1921 | } | |
1922 | return 0; | |
1923 | } | |
e59058c4 JS |
1924 | |
1925 | /** | |
3621a710 | 1926 | * lpfc_sli_process_unsol_iocb - Unsolicited iocb handler |
e59058c4 JS |
1927 | * @phba: Pointer to HBA context object. |
1928 | * @pring: Pointer to driver SLI ring object. | |
1929 | * @saveq: Pointer to the unsolicited iocb. | |
1930 | * | |
1931 | * This function is called with no lock held by the ring event handler | |
1932 | * when there is an unsolicited iocb posted to the response ring by the | |
1933 | * firmware. This function gets the buffer associated with the iocbs | |
1934 | * and calls the event handler for the ring. This function handles both | |
1935 | * qring buffers and hbq buffers. | |
1936 | * When the function returns 1 the caller can free the iocb object otherwise | |
1937 | * upper layer functions will free the iocb objects. | |
1938 | **/ | |
dea3101e | 1939 | static int |
1940 | lpfc_sli_process_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
1941 | struct lpfc_iocbq *saveq) | |
1942 | { | |
1943 | IOCB_t * irsp; | |
1944 | WORD5 * w5p; | |
1945 | uint32_t Rctl, Type; | |
3772a991 | 1946 | uint32_t match; |
76bb24ef | 1947 | struct lpfc_iocbq *iocbq; |
3163f725 | 1948 | struct lpfc_dmabuf *dmzbuf; |
dea3101e | 1949 | |
1950 | match = 0; | |
1951 | irsp = &(saveq->iocb); | |
57127f15 JS |
1952 | |
1953 | if (irsp->ulpCommand == CMD_ASYNC_STATUS) { | |
1954 | if (pring->lpfc_sli_rcv_async_status) | |
1955 | pring->lpfc_sli_rcv_async_status(phba, pring, saveq); | |
1956 | else | |
1957 | lpfc_printf_log(phba, | |
1958 | KERN_WARNING, | |
1959 | LOG_SLI, | |
1960 | "0316 Ring %d handler: unexpected " | |
1961 | "ASYNC_STATUS iocb received evt_code " | |
1962 | "0x%x\n", | |
1963 | pring->ringno, | |
1964 | irsp->un.asyncstat.evt_code); | |
1965 | return 1; | |
1966 | } | |
1967 | ||
3163f725 JS |
1968 | if ((irsp->ulpCommand == CMD_IOCB_RET_XRI64_CX) && |
1969 | (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)) { | |
1970 | if (irsp->ulpBdeCount > 0) { | |
1971 | dmzbuf = lpfc_sli_get_buff(phba, pring, | |
1972 | irsp->un.ulpWord[3]); | |
1973 | lpfc_in_buf_free(phba, dmzbuf); | |
1974 | } | |
1975 | ||
1976 | if (irsp->ulpBdeCount > 1) { | |
1977 | dmzbuf = lpfc_sli_get_buff(phba, pring, | |
1978 | irsp->unsli3.sli3Words[3]); | |
1979 | lpfc_in_buf_free(phba, dmzbuf); | |
1980 | } | |
1981 | ||
1982 | if (irsp->ulpBdeCount > 2) { | |
1983 | dmzbuf = lpfc_sli_get_buff(phba, pring, | |
1984 | irsp->unsli3.sli3Words[7]); | |
1985 | lpfc_in_buf_free(phba, dmzbuf); | |
1986 | } | |
1987 | ||
1988 | return 1; | |
1989 | } | |
1990 | ||
92d7f7b0 | 1991 | if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) { |
76bb24ef JS |
1992 | if (irsp->ulpBdeCount != 0) { |
1993 | saveq->context2 = lpfc_sli_get_buff(phba, pring, | |
1994 | irsp->un.ulpWord[3]); | |
1995 | if (!saveq->context2) | |
1996 | lpfc_printf_log(phba, | |
1997 | KERN_ERR, | |
1998 | LOG_SLI, | |
1999 | "0341 Ring %d Cannot find buffer for " | |
2000 | "an unsolicited iocb. tag 0x%x\n", | |
2001 | pring->ringno, | |
2002 | irsp->un.ulpWord[3]); | |
76bb24ef JS |
2003 | } |
2004 | if (irsp->ulpBdeCount == 2) { | |
2005 | saveq->context3 = lpfc_sli_get_buff(phba, pring, | |
2006 | irsp->unsli3.sli3Words[7]); | |
2007 | if (!saveq->context3) | |
2008 | lpfc_printf_log(phba, | |
2009 | KERN_ERR, | |
2010 | LOG_SLI, | |
2011 | "0342 Ring %d Cannot find buffer for an" | |
2012 | " unsolicited iocb. tag 0x%x\n", | |
2013 | pring->ringno, | |
2014 | irsp->unsli3.sli3Words[7]); | |
2015 | } | |
2016 | list_for_each_entry(iocbq, &saveq->list, list) { | |
76bb24ef | 2017 | irsp = &(iocbq->iocb); |
76bb24ef JS |
2018 | if (irsp->ulpBdeCount != 0) { |
2019 | iocbq->context2 = lpfc_sli_get_buff(phba, pring, | |
2020 | irsp->un.ulpWord[3]); | |
9c2face6 | 2021 | if (!iocbq->context2) |
76bb24ef JS |
2022 | lpfc_printf_log(phba, |
2023 | KERN_ERR, | |
2024 | LOG_SLI, | |
2025 | "0343 Ring %d Cannot find " | |
2026 | "buffer for an unsolicited iocb" | |
2027 | ". tag 0x%x\n", pring->ringno, | |
92d7f7b0 | 2028 | irsp->un.ulpWord[3]); |
76bb24ef JS |
2029 | } |
2030 | if (irsp->ulpBdeCount == 2) { | |
2031 | iocbq->context3 = lpfc_sli_get_buff(phba, pring, | |
51ef4c26 | 2032 | irsp->unsli3.sli3Words[7]); |
9c2face6 | 2033 | if (!iocbq->context3) |
76bb24ef JS |
2034 | lpfc_printf_log(phba, |
2035 | KERN_ERR, | |
2036 | LOG_SLI, | |
2037 | "0344 Ring %d Cannot find " | |
2038 | "buffer for an unsolicited " | |
2039 | "iocb. tag 0x%x\n", | |
2040 | pring->ringno, | |
2041 | irsp->unsli3.sli3Words[7]); | |
2042 | } | |
2043 | } | |
92d7f7b0 | 2044 | } |
9c2face6 JS |
2045 | if (irsp->ulpBdeCount != 0 && |
2046 | (irsp->ulpCommand == CMD_IOCB_RCV_CONT64_CX || | |
2047 | irsp->ulpStatus == IOSTAT_INTERMED_RSP)) { | |
2048 | int found = 0; | |
2049 | ||
2050 | /* search continue save q for same XRI */ | |
2051 | list_for_each_entry(iocbq, &pring->iocb_continue_saveq, clist) { | |
2052 | if (iocbq->iocb.ulpContext == saveq->iocb.ulpContext) { | |
2053 | list_add_tail(&saveq->list, &iocbq->list); | |
2054 | found = 1; | |
2055 | break; | |
2056 | } | |
2057 | } | |
2058 | if (!found) | |
2059 | list_add_tail(&saveq->clist, | |
2060 | &pring->iocb_continue_saveq); | |
2061 | if (saveq->iocb.ulpStatus != IOSTAT_INTERMED_RSP) { | |
2062 | list_del_init(&iocbq->clist); | |
2063 | saveq = iocbq; | |
2064 | irsp = &(saveq->iocb); | |
2065 | } else | |
2066 | return 0; | |
2067 | } | |
2068 | if ((irsp->ulpCommand == CMD_RCV_ELS_REQ64_CX) || | |
2069 | (irsp->ulpCommand == CMD_RCV_ELS_REQ_CX) || | |
2070 | (irsp->ulpCommand == CMD_IOCB_RCV_ELS64_CX)) { | |
2071 | Rctl = FC_ELS_REQ; | |
2072 | Type = FC_ELS_DATA; | |
2073 | } else { | |
2074 | w5p = (WORD5 *)&(saveq->iocb.un.ulpWord[5]); | |
2075 | Rctl = w5p->hcsw.Rctl; | |
2076 | Type = w5p->hcsw.Type; | |
2077 | ||
2078 | /* Firmware Workaround */ | |
2079 | if ((Rctl == 0) && (pring->ringno == LPFC_ELS_RING) && | |
2080 | (irsp->ulpCommand == CMD_RCV_SEQUENCE64_CX || | |
2081 | irsp->ulpCommand == CMD_IOCB_RCV_SEQ64_CX)) { | |
2082 | Rctl = FC_ELS_REQ; | |
2083 | Type = FC_ELS_DATA; | |
2084 | w5p->hcsw.Rctl = Rctl; | |
2085 | w5p->hcsw.Type = Type; | |
2086 | } | |
2087 | } | |
92d7f7b0 | 2088 | |
3772a991 | 2089 | if (!lpfc_complete_unsol_iocb(phba, pring, saveq, Rctl, Type)) |
92d7f7b0 | 2090 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, |
e8b62011 | 2091 | "0313 Ring %d handler: unexpected Rctl x%x " |
92d7f7b0 | 2092 | "Type x%x received\n", |
e8b62011 | 2093 | pring->ringno, Rctl, Type); |
3772a991 | 2094 | |
92d7f7b0 | 2095 | return 1; |
dea3101e | 2096 | } |
2097 | ||
e59058c4 | 2098 | /** |
3621a710 | 2099 | * lpfc_sli_iocbq_lookup - Find command iocb for the given response iocb |
e59058c4 JS |
2100 | * @phba: Pointer to HBA context object. |
2101 | * @pring: Pointer to driver SLI ring object. | |
2102 | * @prspiocb: Pointer to response iocb object. | |
2103 | * | |
2104 | * This function looks up the iocb_lookup table to get the command iocb | |
2105 | * corresponding to the given response iocb using the iotag of the | |
2106 | * response iocb. This function is called with the hbalock held. | |
2107 | * This function returns the command iocb object if it finds the command | |
2108 | * iocb else returns NULL. | |
2109 | **/ | |
dea3101e | 2110 | static struct lpfc_iocbq * |
2e0fef85 JS |
2111 | lpfc_sli_iocbq_lookup(struct lpfc_hba *phba, |
2112 | struct lpfc_sli_ring *pring, | |
2113 | struct lpfc_iocbq *prspiocb) | |
dea3101e | 2114 | { |
dea3101e | 2115 | struct lpfc_iocbq *cmd_iocb = NULL; |
2116 | uint16_t iotag; | |
2117 | ||
604a3e30 JB |
2118 | iotag = prspiocb->iocb.ulpIoTag; |
2119 | ||
2120 | if (iotag != 0 && iotag <= phba->sli.last_iotag) { | |
2121 | cmd_iocb = phba->sli.iocbq_lookup[iotag]; | |
92d7f7b0 | 2122 | list_del_init(&cmd_iocb->list); |
604a3e30 JB |
2123 | pring->txcmplq_cnt--; |
2124 | return cmd_iocb; | |
dea3101e | 2125 | } |
2126 | ||
dea3101e | 2127 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, |
e8b62011 | 2128 | "0317 iotag x%x is out off " |
604a3e30 | 2129 | "range: max iotag x%x wd0 x%x\n", |
e8b62011 | 2130 | iotag, phba->sli.last_iotag, |
604a3e30 | 2131 | *(((uint32_t *) &prspiocb->iocb) + 7)); |
dea3101e | 2132 | return NULL; |
2133 | } | |
2134 | ||
3772a991 JS |
2135 | /** |
2136 | * lpfc_sli_iocbq_lookup_by_tag - Find command iocb for the iotag | |
2137 | * @phba: Pointer to HBA context object. | |
2138 | * @pring: Pointer to driver SLI ring object. | |
2139 | * @iotag: IOCB tag. | |
2140 | * | |
2141 | * This function looks up the iocb_lookup table to get the command iocb | |
2142 | * corresponding to the given iotag. This function is called with the | |
2143 | * hbalock held. | |
2144 | * This function returns the command iocb object if it finds the command | |
2145 | * iocb else returns NULL. | |
2146 | **/ | |
2147 | static struct lpfc_iocbq * | |
2148 | lpfc_sli_iocbq_lookup_by_tag(struct lpfc_hba *phba, | |
2149 | struct lpfc_sli_ring *pring, uint16_t iotag) | |
2150 | { | |
2151 | struct lpfc_iocbq *cmd_iocb; | |
2152 | ||
2153 | if (iotag != 0 && iotag <= phba->sli.last_iotag) { | |
2154 | cmd_iocb = phba->sli.iocbq_lookup[iotag]; | |
2155 | list_del_init(&cmd_iocb->list); | |
2156 | pring->txcmplq_cnt--; | |
2157 | return cmd_iocb; | |
2158 | } | |
2159 | ||
2160 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
2161 | "0372 iotag x%x is out off range: max iotag (x%x)\n", | |
2162 | iotag, phba->sli.last_iotag); | |
2163 | return NULL; | |
2164 | } | |
2165 | ||
e59058c4 | 2166 | /** |
3621a710 | 2167 | * lpfc_sli_process_sol_iocb - process solicited iocb completion |
e59058c4 JS |
2168 | * @phba: Pointer to HBA context object. |
2169 | * @pring: Pointer to driver SLI ring object. | |
2170 | * @saveq: Pointer to the response iocb to be processed. | |
2171 | * | |
2172 | * This function is called by the ring event handler for non-fcp | |
2173 | * rings when there is a new response iocb in the response ring. | |
2174 | * The caller is not required to hold any locks. This function | |
2175 | * gets the command iocb associated with the response iocb and | |
2176 | * calls the completion handler for the command iocb. If there | |
2177 | * is no completion handler, the function will free the resources | |
2178 | * associated with command iocb. If the response iocb is for | |
2179 | * an already aborted command iocb, the status of the completion | |
2180 | * is changed to IOSTAT_LOCAL_REJECT/IOERR_SLI_ABORTED. | |
2181 | * This function always returns 1. | |
2182 | **/ | |
dea3101e | 2183 | static int |
2e0fef85 | 2184 | lpfc_sli_process_sol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, |
dea3101e | 2185 | struct lpfc_iocbq *saveq) |
2186 | { | |
2e0fef85 | 2187 | struct lpfc_iocbq *cmdiocbp; |
dea3101e | 2188 | int rc = 1; |
2189 | unsigned long iflag; | |
2190 | ||
2191 | /* Based on the iotag field, get the cmd IOCB from the txcmplq */ | |
2e0fef85 | 2192 | spin_lock_irqsave(&phba->hbalock, iflag); |
604a3e30 | 2193 | cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring, saveq); |
2e0fef85 JS |
2194 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
2195 | ||
dea3101e | 2196 | if (cmdiocbp) { |
2197 | if (cmdiocbp->iocb_cmpl) { | |
ea2151b4 JS |
2198 | /* |
2199 | * If an ELS command failed send an event to mgmt | |
2200 | * application. | |
2201 | */ | |
2202 | if (saveq->iocb.ulpStatus && | |
2203 | (pring->ringno == LPFC_ELS_RING) && | |
2204 | (cmdiocbp->iocb.ulpCommand == | |
2205 | CMD_ELS_REQUEST64_CR)) | |
2206 | lpfc_send_els_failure_event(phba, | |
2207 | cmdiocbp, saveq); | |
2208 | ||
dea3101e | 2209 | /* |
2210 | * Post all ELS completions to the worker thread. | |
2211 | * All other are passed to the completion callback. | |
2212 | */ | |
2213 | if (pring->ringno == LPFC_ELS_RING) { | |
07951076 JS |
2214 | if (cmdiocbp->iocb_flag & LPFC_DRIVER_ABORTED) { |
2215 | cmdiocbp->iocb_flag &= | |
2216 | ~LPFC_DRIVER_ABORTED; | |
2217 | saveq->iocb.ulpStatus = | |
2218 | IOSTAT_LOCAL_REJECT; | |
2219 | saveq->iocb.un.ulpWord[4] = | |
2220 | IOERR_SLI_ABORTED; | |
0ff10d46 JS |
2221 | |
2222 | /* Firmware could still be in progress | |
2223 | * of DMAing payload, so don't free data | |
2224 | * buffer till after a hbeat. | |
2225 | */ | |
2226 | saveq->iocb_flag |= LPFC_DELAY_MEM_FREE; | |
07951076 | 2227 | } |
dea3101e | 2228 | } |
2e0fef85 | 2229 | (cmdiocbp->iocb_cmpl) (phba, cmdiocbp, saveq); |
604a3e30 JB |
2230 | } else |
2231 | lpfc_sli_release_iocbq(phba, cmdiocbp); | |
dea3101e | 2232 | } else { |
2233 | /* | |
2234 | * Unknown initiating command based on the response iotag. | |
2235 | * This could be the case on the ELS ring because of | |
2236 | * lpfc_els_abort(). | |
2237 | */ | |
2238 | if (pring->ringno != LPFC_ELS_RING) { | |
2239 | /* | |
2240 | * Ring <ringno> handler: unexpected completion IoTag | |
2241 | * <IoTag> | |
2242 | */ | |
a257bf90 | 2243 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, |
e8b62011 JS |
2244 | "0322 Ring %d handler: " |
2245 | "unexpected completion IoTag x%x " | |
2246 | "Data: x%x x%x x%x x%x\n", | |
2247 | pring->ringno, | |
2248 | saveq->iocb.ulpIoTag, | |
2249 | saveq->iocb.ulpStatus, | |
2250 | saveq->iocb.un.ulpWord[4], | |
2251 | saveq->iocb.ulpCommand, | |
2252 | saveq->iocb.ulpContext); | |
dea3101e | 2253 | } |
2254 | } | |
68876920 | 2255 | |
dea3101e | 2256 | return rc; |
2257 | } | |
2258 | ||
e59058c4 | 2259 | /** |
3621a710 | 2260 | * lpfc_sli_rsp_pointers_error - Response ring pointer error handler |
e59058c4 JS |
2261 | * @phba: Pointer to HBA context object. |
2262 | * @pring: Pointer to driver SLI ring object. | |
2263 | * | |
2264 | * This function is called from the iocb ring event handlers when | |
2265 | * put pointer is ahead of the get pointer for a ring. This function signal | |
2266 | * an error attention condition to the worker thread and the worker | |
2267 | * thread will transition the HBA to offline state. | |
2268 | **/ | |
2e0fef85 JS |
2269 | static void |
2270 | lpfc_sli_rsp_pointers_error(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) | |
875fbdfe | 2271 | { |
34b02dcd | 2272 | struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno]; |
875fbdfe | 2273 | /* |
025dfdaf | 2274 | * Ring <ringno> handler: portRspPut <portRspPut> is bigger than |
875fbdfe JSEC |
2275 | * rsp ring <portRspMax> |
2276 | */ | |
2277 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
e8b62011 | 2278 | "0312 Ring %d handler: portRspPut %d " |
025dfdaf | 2279 | "is bigger than rsp ring %d\n", |
e8b62011 | 2280 | pring->ringno, le32_to_cpu(pgp->rspPutInx), |
875fbdfe JSEC |
2281 | pring->numRiocb); |
2282 | ||
2e0fef85 | 2283 | phba->link_state = LPFC_HBA_ERROR; |
875fbdfe JSEC |
2284 | |
2285 | /* | |
2286 | * All error attention handlers are posted to | |
2287 | * worker thread | |
2288 | */ | |
2289 | phba->work_ha |= HA_ERATT; | |
2290 | phba->work_hs = HS_FFER3; | |
92d7f7b0 | 2291 | |
5e9d9b82 | 2292 | lpfc_worker_wake_up(phba); |
875fbdfe JSEC |
2293 | |
2294 | return; | |
2295 | } | |
2296 | ||
9399627f | 2297 | /** |
3621a710 | 2298 | * lpfc_poll_eratt - Error attention polling timer timeout handler |
9399627f JS |
2299 | * @ptr: Pointer to address of HBA context object. |
2300 | * | |
2301 | * This function is invoked by the Error Attention polling timer when the | |
2302 | * timer times out. It will check the SLI Error Attention register for | |
2303 | * possible attention events. If so, it will post an Error Attention event | |
2304 | * and wake up worker thread to process it. Otherwise, it will set up the | |
2305 | * Error Attention polling timer for the next poll. | |
2306 | **/ | |
2307 | void lpfc_poll_eratt(unsigned long ptr) | |
2308 | { | |
2309 | struct lpfc_hba *phba; | |
2310 | uint32_t eratt = 0; | |
2311 | ||
2312 | phba = (struct lpfc_hba *)ptr; | |
2313 | ||
2314 | /* Check chip HA register for error event */ | |
2315 | eratt = lpfc_sli_check_eratt(phba); | |
2316 | ||
2317 | if (eratt) | |
2318 | /* Tell the worker thread there is work to do */ | |
2319 | lpfc_worker_wake_up(phba); | |
2320 | else | |
2321 | /* Restart the timer for next eratt poll */ | |
2322 | mod_timer(&phba->eratt_poll, jiffies + | |
2323 | HZ * LPFC_ERATT_POLL_INTERVAL); | |
2324 | return; | |
2325 | } | |
2326 | ||
e59058c4 | 2327 | /** |
3621a710 | 2328 | * lpfc_sli_poll_fcp_ring - Handle FCP ring completion in polling mode |
e59058c4 JS |
2329 | * @phba: Pointer to HBA context object. |
2330 | * | |
2331 | * This function is called from lpfc_queuecommand, lpfc_poll_timeout, | |
2332 | * lpfc_abort_handler and lpfc_slave_configure when FCP_RING_POLLING | |
2333 | * is enabled. | |
2334 | * | |
2335 | * The caller does not hold any lock. | |
2336 | * The function processes each response iocb in the response ring until it | |
2337 | * finds an iocb with LE bit set and chains all the iocbs upto the iocb with | |
2338 | * LE bit set. The function will call the completion handler of the command iocb | |
2339 | * if the response iocb indicates a completion for a command iocb or it is | |
2340 | * an abort completion. | |
2341 | **/ | |
2e0fef85 | 2342 | void lpfc_sli_poll_fcp_ring(struct lpfc_hba *phba) |
875fbdfe | 2343 | { |
2e0fef85 JS |
2344 | struct lpfc_sli *psli = &phba->sli; |
2345 | struct lpfc_sli_ring *pring = &psli->ring[LPFC_FCP_RING]; | |
875fbdfe JSEC |
2346 | IOCB_t *irsp = NULL; |
2347 | IOCB_t *entry = NULL; | |
2348 | struct lpfc_iocbq *cmdiocbq = NULL; | |
2349 | struct lpfc_iocbq rspiocbq; | |
34b02dcd | 2350 | struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno]; |
875fbdfe JSEC |
2351 | uint32_t status; |
2352 | uint32_t portRspPut, portRspMax; | |
2353 | int type; | |
2354 | uint32_t rsp_cmpl = 0; | |
875fbdfe | 2355 | uint32_t ha_copy; |
2e0fef85 | 2356 | unsigned long iflags; |
875fbdfe JSEC |
2357 | |
2358 | pring->stats.iocb_event++; | |
2359 | ||
875fbdfe JSEC |
2360 | /* |
2361 | * The next available response entry should never exceed the maximum | |
2362 | * entries. If it does, treat it as an adapter hardware error. | |
2363 | */ | |
2364 | portRspMax = pring->numRiocb; | |
2365 | portRspPut = le32_to_cpu(pgp->rspPutInx); | |
2366 | if (unlikely(portRspPut >= portRspMax)) { | |
2367 | lpfc_sli_rsp_pointers_error(phba, pring); | |
2368 | return; | |
2369 | } | |
2370 | ||
2371 | rmb(); | |
2372 | while (pring->rspidx != portRspPut) { | |
ed957684 | 2373 | entry = lpfc_resp_iocb(phba, pring); |
875fbdfe JSEC |
2374 | if (++pring->rspidx >= portRspMax) |
2375 | pring->rspidx = 0; | |
2376 | ||
2377 | lpfc_sli_pcimem_bcopy((uint32_t *) entry, | |
2378 | (uint32_t *) &rspiocbq.iocb, | |
92d7f7b0 | 2379 | phba->iocb_rsp_size); |
875fbdfe JSEC |
2380 | irsp = &rspiocbq.iocb; |
2381 | type = lpfc_sli_iocb_cmd_type(irsp->ulpCommand & CMD_IOCB_MASK); | |
2382 | pring->stats.iocb_rsp++; | |
2383 | rsp_cmpl++; | |
2384 | ||
2385 | if (unlikely(irsp->ulpStatus)) { | |
2386 | /* Rsp ring <ringno> error: IOCB */ | |
2387 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, | |
e8b62011 | 2388 | "0326 Rsp Ring %d error: IOCB Data: " |
875fbdfe | 2389 | "x%x x%x x%x x%x x%x x%x x%x x%x\n", |
e8b62011 | 2390 | pring->ringno, |
875fbdfe JSEC |
2391 | irsp->un.ulpWord[0], |
2392 | irsp->un.ulpWord[1], | |
2393 | irsp->un.ulpWord[2], | |
2394 | irsp->un.ulpWord[3], | |
2395 | irsp->un.ulpWord[4], | |
2396 | irsp->un.ulpWord[5], | |
d7c255b2 JS |
2397 | *(uint32_t *)&irsp->un1, |
2398 | *((uint32_t *)&irsp->un1 + 1)); | |
875fbdfe JSEC |
2399 | } |
2400 | ||
2401 | switch (type) { | |
2402 | case LPFC_ABORT_IOCB: | |
2403 | case LPFC_SOL_IOCB: | |
2404 | /* | |
2405 | * Idle exchange closed via ABTS from port. No iocb | |
2406 | * resources need to be recovered. | |
2407 | */ | |
2408 | if (unlikely(irsp->ulpCommand == CMD_XRI_ABORTED_CX)) { | |
dca9479b | 2409 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, |
e8b62011 JS |
2410 | "0314 IOCB cmd 0x%x " |
2411 | "processed. Skipping " | |
2412 | "completion", | |
dca9479b | 2413 | irsp->ulpCommand); |
875fbdfe JSEC |
2414 | break; |
2415 | } | |
2416 | ||
2e0fef85 | 2417 | spin_lock_irqsave(&phba->hbalock, iflags); |
875fbdfe JSEC |
2418 | cmdiocbq = lpfc_sli_iocbq_lookup(phba, pring, |
2419 | &rspiocbq); | |
2e0fef85 | 2420 | spin_unlock_irqrestore(&phba->hbalock, iflags); |
875fbdfe JSEC |
2421 | if ((cmdiocbq) && (cmdiocbq->iocb_cmpl)) { |
2422 | (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, | |
2423 | &rspiocbq); | |
2424 | } | |
2425 | break; | |
2426 | default: | |
2427 | if (irsp->ulpCommand == CMD_ADAPTER_MSG) { | |
2428 | char adaptermsg[LPFC_MAX_ADPTMSG]; | |
2429 | memset(adaptermsg, 0, LPFC_MAX_ADPTMSG); | |
2430 | memcpy(&adaptermsg[0], (uint8_t *) irsp, | |
2431 | MAX_MSG_DATA); | |
898eb71c JP |
2432 | dev_warn(&((phba->pcidev)->dev), |
2433 | "lpfc%d: %s\n", | |
875fbdfe JSEC |
2434 | phba->brd_no, adaptermsg); |
2435 | } else { | |
2436 | /* Unknown IOCB command */ | |
2437 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
e8b62011 | 2438 | "0321 Unknown IOCB command " |
875fbdfe | 2439 | "Data: x%x, x%x x%x x%x x%x\n", |
e8b62011 | 2440 | type, irsp->ulpCommand, |
875fbdfe JSEC |
2441 | irsp->ulpStatus, |
2442 | irsp->ulpIoTag, | |
2443 | irsp->ulpContext); | |
2444 | } | |
2445 | break; | |
2446 | } | |
2447 | ||
2448 | /* | |
2449 | * The response IOCB has been processed. Update the ring | |
2450 | * pointer in SLIM. If the port response put pointer has not | |
2451 | * been updated, sync the pgp->rspPutInx and fetch the new port | |
2452 | * response put pointer. | |
2453 | */ | |
ed957684 | 2454 | writel(pring->rspidx, &phba->host_gp[pring->ringno].rspGetInx); |
875fbdfe JSEC |
2455 | |
2456 | if (pring->rspidx == portRspPut) | |
2457 | portRspPut = le32_to_cpu(pgp->rspPutInx); | |
2458 | } | |
2459 | ||
2460 | ha_copy = readl(phba->HAregaddr); | |
2461 | ha_copy >>= (LPFC_FCP_RING * 4); | |
2462 | ||
2463 | if ((rsp_cmpl > 0) && (ha_copy & HA_R0RE_REQ)) { | |
2e0fef85 | 2464 | spin_lock_irqsave(&phba->hbalock, iflags); |
875fbdfe JSEC |
2465 | pring->stats.iocb_rsp_full++; |
2466 | status = ((CA_R0ATT | CA_R0RE_RSP) << (LPFC_FCP_RING * 4)); | |
2467 | writel(status, phba->CAregaddr); | |
2468 | readl(phba->CAregaddr); | |
2e0fef85 | 2469 | spin_unlock_irqrestore(&phba->hbalock, iflags); |
875fbdfe JSEC |
2470 | } |
2471 | if ((ha_copy & HA_R0CE_RSP) && | |
2472 | (pring->flag & LPFC_CALL_RING_AVAILABLE)) { | |
2e0fef85 | 2473 | spin_lock_irqsave(&phba->hbalock, iflags); |
875fbdfe JSEC |
2474 | pring->flag &= ~LPFC_CALL_RING_AVAILABLE; |
2475 | pring->stats.iocb_cmd_empty++; | |
2476 | ||
2477 | /* Force update of the local copy of cmdGetInx */ | |
2478 | pring->local_getidx = le32_to_cpu(pgp->cmdGetInx); | |
2479 | lpfc_sli_resume_iocb(phba, pring); | |
2480 | ||
2481 | if ((pring->lpfc_sli_cmd_available)) | |
2482 | (pring->lpfc_sli_cmd_available) (phba, pring); | |
2483 | ||
2e0fef85 | 2484 | spin_unlock_irqrestore(&phba->hbalock, iflags); |
875fbdfe JSEC |
2485 | } |
2486 | ||
2487 | return; | |
2488 | } | |
2489 | ||
e59058c4 | 2490 | /** |
3621a710 | 2491 | * lpfc_sli_handle_fast_ring_event - Handle ring events on FCP ring |
e59058c4 JS |
2492 | * @phba: Pointer to HBA context object. |
2493 | * @pring: Pointer to driver SLI ring object. | |
2494 | * @mask: Host attention register mask for this ring. | |
2495 | * | |
2496 | * This function is called from the interrupt context when there is a ring | |
2497 | * event for the fcp ring. The caller does not hold any lock. | |
2498 | * The function processes each response iocb in the response ring until it | |
2499 | * finds an iocb with LE bit set and chains all the iocbs upto the iocb with | |
2500 | * LE bit set. The function will call the completion handler of the command iocb | |
2501 | * if the response iocb indicates a completion for a command iocb or it is | |
2502 | * an abort completion. The function will call lpfc_sli_process_unsol_iocb | |
2503 | * function if this is an unsolicited iocb. | |
dea3101e | 2504 | * This routine presumes LPFC_FCP_RING handling and doesn't bother |
e59058c4 JS |
2505 | * to check it explicitly. This function always returns 1. |
2506 | **/ | |
dea3101e | 2507 | static int |
2e0fef85 JS |
2508 | lpfc_sli_handle_fast_ring_event(struct lpfc_hba *phba, |
2509 | struct lpfc_sli_ring *pring, uint32_t mask) | |
dea3101e | 2510 | { |
34b02dcd | 2511 | struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno]; |
dea3101e | 2512 | IOCB_t *irsp = NULL; |
87f6eaff | 2513 | IOCB_t *entry = NULL; |
dea3101e | 2514 | struct lpfc_iocbq *cmdiocbq = NULL; |
2515 | struct lpfc_iocbq rspiocbq; | |
dea3101e | 2516 | uint32_t status; |
2517 | uint32_t portRspPut, portRspMax; | |
2518 | int rc = 1; | |
2519 | lpfc_iocb_type type; | |
2520 | unsigned long iflag; | |
2521 | uint32_t rsp_cmpl = 0; | |
dea3101e | 2522 | |
2e0fef85 | 2523 | spin_lock_irqsave(&phba->hbalock, iflag); |
dea3101e | 2524 | pring->stats.iocb_event++; |
2525 | ||
dea3101e | 2526 | /* |
2527 | * The next available response entry should never exceed the maximum | |
2528 | * entries. If it does, treat it as an adapter hardware error. | |
2529 | */ | |
2530 | portRspMax = pring->numRiocb; | |
2531 | portRspPut = le32_to_cpu(pgp->rspPutInx); | |
2532 | if (unlikely(portRspPut >= portRspMax)) { | |
875fbdfe | 2533 | lpfc_sli_rsp_pointers_error(phba, pring); |
2e0fef85 | 2534 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
dea3101e | 2535 | return 1; |
2536 | } | |
2537 | ||
2538 | rmb(); | |
2539 | while (pring->rspidx != portRspPut) { | |
87f6eaff JSEC |
2540 | /* |
2541 | * Fetch an entry off the ring and copy it into a local data | |
2542 | * structure. The copy involves a byte-swap since the | |
2543 | * network byte order and pci byte orders are different. | |
2544 | */ | |
ed957684 | 2545 | entry = lpfc_resp_iocb(phba, pring); |
858c9f6c | 2546 | phba->last_completion_time = jiffies; |
875fbdfe JSEC |
2547 | |
2548 | if (++pring->rspidx >= portRspMax) | |
2549 | pring->rspidx = 0; | |
2550 | ||
87f6eaff JSEC |
2551 | lpfc_sli_pcimem_bcopy((uint32_t *) entry, |
2552 | (uint32_t *) &rspiocbq.iocb, | |
ed957684 | 2553 | phba->iocb_rsp_size); |
a4bc3379 | 2554 | INIT_LIST_HEAD(&(rspiocbq.list)); |
87f6eaff JSEC |
2555 | irsp = &rspiocbq.iocb; |
2556 | ||
dea3101e | 2557 | type = lpfc_sli_iocb_cmd_type(irsp->ulpCommand & CMD_IOCB_MASK); |
2558 | pring->stats.iocb_rsp++; | |
2559 | rsp_cmpl++; | |
2560 | ||
2561 | if (unlikely(irsp->ulpStatus)) { | |
92d7f7b0 JS |
2562 | /* |
2563 | * If resource errors reported from HBA, reduce | |
2564 | * queuedepths of the SCSI device. | |
2565 | */ | |
2566 | if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) && | |
2567 | (irsp->un.ulpWord[4] == IOERR_NO_RESOURCES)) { | |
2568 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
3772a991 | 2569 | phba->lpfc_rampdown_queue_depth(phba); |
92d7f7b0 JS |
2570 | spin_lock_irqsave(&phba->hbalock, iflag); |
2571 | } | |
2572 | ||
dea3101e | 2573 | /* Rsp ring <ringno> error: IOCB */ |
2574 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, | |
e8b62011 | 2575 | "0336 Rsp Ring %d error: IOCB Data: " |
92d7f7b0 | 2576 | "x%x x%x x%x x%x x%x x%x x%x x%x\n", |
e8b62011 | 2577 | pring->ringno, |
92d7f7b0 JS |
2578 | irsp->un.ulpWord[0], |
2579 | irsp->un.ulpWord[1], | |
2580 | irsp->un.ulpWord[2], | |
2581 | irsp->un.ulpWord[3], | |
2582 | irsp->un.ulpWord[4], | |
2583 | irsp->un.ulpWord[5], | |
d7c255b2 JS |
2584 | *(uint32_t *)&irsp->un1, |
2585 | *((uint32_t *)&irsp->un1 + 1)); | |
dea3101e | 2586 | } |
2587 | ||
2588 | switch (type) { | |
2589 | case LPFC_ABORT_IOCB: | |
2590 | case LPFC_SOL_IOCB: | |
2591 | /* | |
2592 | * Idle exchange closed via ABTS from port. No iocb | |
2593 | * resources need to be recovered. | |
2594 | */ | |
2595 | if (unlikely(irsp->ulpCommand == CMD_XRI_ABORTED_CX)) { | |
dca9479b | 2596 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, |
e8b62011 | 2597 | "0333 IOCB cmd 0x%x" |
dca9479b | 2598 | " processed. Skipping" |
92d7f7b0 | 2599 | " completion\n", |
dca9479b | 2600 | irsp->ulpCommand); |
dea3101e | 2601 | break; |
2602 | } | |
2603 | ||
604a3e30 JB |
2604 | cmdiocbq = lpfc_sli_iocbq_lookup(phba, pring, |
2605 | &rspiocbq); | |
dea3101e | 2606 | if ((cmdiocbq) && (cmdiocbq->iocb_cmpl)) { |
b808608b JW |
2607 | if (phba->cfg_poll & ENABLE_FCP_RING_POLLING) { |
2608 | (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, | |
2609 | &rspiocbq); | |
2610 | } else { | |
2e0fef85 JS |
2611 | spin_unlock_irqrestore(&phba->hbalock, |
2612 | iflag); | |
b808608b JW |
2613 | (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, |
2614 | &rspiocbq); | |
2e0fef85 | 2615 | spin_lock_irqsave(&phba->hbalock, |
b808608b JW |
2616 | iflag); |
2617 | } | |
dea3101e | 2618 | } |
2619 | break; | |
a4bc3379 | 2620 | case LPFC_UNSOL_IOCB: |
2e0fef85 | 2621 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
a4bc3379 | 2622 | lpfc_sli_process_unsol_iocb(phba, pring, &rspiocbq); |
2e0fef85 | 2623 | spin_lock_irqsave(&phba->hbalock, iflag); |
a4bc3379 | 2624 | break; |
dea3101e | 2625 | default: |
2626 | if (irsp->ulpCommand == CMD_ADAPTER_MSG) { | |
2627 | char adaptermsg[LPFC_MAX_ADPTMSG]; | |
2628 | memset(adaptermsg, 0, LPFC_MAX_ADPTMSG); | |
2629 | memcpy(&adaptermsg[0], (uint8_t *) irsp, | |
2630 | MAX_MSG_DATA); | |
898eb71c JP |
2631 | dev_warn(&((phba->pcidev)->dev), |
2632 | "lpfc%d: %s\n", | |
dea3101e | 2633 | phba->brd_no, adaptermsg); |
2634 | } else { | |
2635 | /* Unknown IOCB command */ | |
2636 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
e8b62011 | 2637 | "0334 Unknown IOCB command " |
92d7f7b0 | 2638 | "Data: x%x, x%x x%x x%x x%x\n", |
e8b62011 | 2639 | type, irsp->ulpCommand, |
92d7f7b0 JS |
2640 | irsp->ulpStatus, |
2641 | irsp->ulpIoTag, | |
2642 | irsp->ulpContext); | |
dea3101e | 2643 | } |
2644 | break; | |
2645 | } | |
2646 | ||
2647 | /* | |
2648 | * The response IOCB has been processed. Update the ring | |
2649 | * pointer in SLIM. If the port response put pointer has not | |
2650 | * been updated, sync the pgp->rspPutInx and fetch the new port | |
2651 | * response put pointer. | |
2652 | */ | |
ed957684 | 2653 | writel(pring->rspidx, &phba->host_gp[pring->ringno].rspGetInx); |
dea3101e | 2654 | |
2655 | if (pring->rspidx == portRspPut) | |
2656 | portRspPut = le32_to_cpu(pgp->rspPutInx); | |
2657 | } | |
2658 | ||
2659 | if ((rsp_cmpl > 0) && (mask & HA_R0RE_REQ)) { | |
2660 | pring->stats.iocb_rsp_full++; | |
2661 | status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4)); | |
2662 | writel(status, phba->CAregaddr); | |
2663 | readl(phba->CAregaddr); | |
2664 | } | |
2665 | if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) { | |
2666 | pring->flag &= ~LPFC_CALL_RING_AVAILABLE; | |
2667 | pring->stats.iocb_cmd_empty++; | |
2668 | ||
2669 | /* Force update of the local copy of cmdGetInx */ | |
2670 | pring->local_getidx = le32_to_cpu(pgp->cmdGetInx); | |
2671 | lpfc_sli_resume_iocb(phba, pring); | |
2672 | ||
2673 | if ((pring->lpfc_sli_cmd_available)) | |
2674 | (pring->lpfc_sli_cmd_available) (phba, pring); | |
2675 | ||
2676 | } | |
2677 | ||
2e0fef85 | 2678 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
dea3101e | 2679 | return rc; |
2680 | } | |
2681 | ||
e59058c4 | 2682 | /** |
3772a991 JS |
2683 | * lpfc_sli_sp_handle_rspiocb - Handle slow-path response iocb |
2684 | * @phba: Pointer to HBA context object. | |
2685 | * @pring: Pointer to driver SLI ring object. | |
2686 | * @rspiocbp: Pointer to driver response IOCB object. | |
2687 | * | |
2688 | * This function is called from the worker thread when there is a slow-path | |
2689 | * response IOCB to process. This function chains all the response iocbs until | |
2690 | * seeing the iocb with the LE bit set. The function will call | |
2691 | * lpfc_sli_process_sol_iocb function if the response iocb indicates a | |
2692 | * completion of a command iocb. The function will call the | |
2693 | * lpfc_sli_process_unsol_iocb function if this is an unsolicited iocb. | |
2694 | * The function frees the resources or calls the completion handler if this | |
2695 | * iocb is an abort completion. The function returns NULL when the response | |
2696 | * iocb has the LE bit set and all the chained iocbs are processed, otherwise | |
2697 | * this function shall chain the iocb on to the iocb_continueq and return the | |
2698 | * response iocb passed in. | |
2699 | **/ | |
2700 | static struct lpfc_iocbq * | |
2701 | lpfc_sli_sp_handle_rspiocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
2702 | struct lpfc_iocbq *rspiocbp) | |
2703 | { | |
2704 | struct lpfc_iocbq *saveq; | |
2705 | struct lpfc_iocbq *cmdiocbp; | |
2706 | struct lpfc_iocbq *next_iocb; | |
2707 | IOCB_t *irsp = NULL; | |
2708 | uint32_t free_saveq; | |
2709 | uint8_t iocb_cmd_type; | |
2710 | lpfc_iocb_type type; | |
2711 | unsigned long iflag; | |
2712 | int rc; | |
2713 | ||
2714 | spin_lock_irqsave(&phba->hbalock, iflag); | |
2715 | /* First add the response iocb to the countinueq list */ | |
2716 | list_add_tail(&rspiocbp->list, &(pring->iocb_continueq)); | |
2717 | pring->iocb_continueq_cnt++; | |
2718 | ||
2719 | /* Now, determine whetehr the list is completed for processing */ | |
2720 | irsp = &rspiocbp->iocb; | |
2721 | if (irsp->ulpLe) { | |
2722 | /* | |
2723 | * By default, the driver expects to free all resources | |
2724 | * associated with this iocb completion. | |
2725 | */ | |
2726 | free_saveq = 1; | |
2727 | saveq = list_get_first(&pring->iocb_continueq, | |
2728 | struct lpfc_iocbq, list); | |
2729 | irsp = &(saveq->iocb); | |
2730 | list_del_init(&pring->iocb_continueq); | |
2731 | pring->iocb_continueq_cnt = 0; | |
2732 | ||
2733 | pring->stats.iocb_rsp++; | |
2734 | ||
2735 | /* | |
2736 | * If resource errors reported from HBA, reduce | |
2737 | * queuedepths of the SCSI device. | |
2738 | */ | |
2739 | if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) && | |
2740 | (irsp->un.ulpWord[4] == IOERR_NO_RESOURCES)) { | |
2741 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
2742 | phba->lpfc_rampdown_queue_depth(phba); | |
2743 | spin_lock_irqsave(&phba->hbalock, iflag); | |
2744 | } | |
2745 | ||
2746 | if (irsp->ulpStatus) { | |
2747 | /* Rsp ring <ringno> error: IOCB */ | |
2748 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, | |
2749 | "0328 Rsp Ring %d error: " | |
2750 | "IOCB Data: " | |
2751 | "x%x x%x x%x x%x " | |
2752 | "x%x x%x x%x x%x " | |
2753 | "x%x x%x x%x x%x " | |
2754 | "x%x x%x x%x x%x\n", | |
2755 | pring->ringno, | |
2756 | irsp->un.ulpWord[0], | |
2757 | irsp->un.ulpWord[1], | |
2758 | irsp->un.ulpWord[2], | |
2759 | irsp->un.ulpWord[3], | |
2760 | irsp->un.ulpWord[4], | |
2761 | irsp->un.ulpWord[5], | |
2762 | *(((uint32_t *) irsp) + 6), | |
2763 | *(((uint32_t *) irsp) + 7), | |
2764 | *(((uint32_t *) irsp) + 8), | |
2765 | *(((uint32_t *) irsp) + 9), | |
2766 | *(((uint32_t *) irsp) + 10), | |
2767 | *(((uint32_t *) irsp) + 11), | |
2768 | *(((uint32_t *) irsp) + 12), | |
2769 | *(((uint32_t *) irsp) + 13), | |
2770 | *(((uint32_t *) irsp) + 14), | |
2771 | *(((uint32_t *) irsp) + 15)); | |
2772 | } | |
2773 | ||
2774 | /* | |
2775 | * Fetch the IOCB command type and call the correct completion | |
2776 | * routine. Solicited and Unsolicited IOCBs on the ELS ring | |
2777 | * get freed back to the lpfc_iocb_list by the discovery | |
2778 | * kernel thread. | |
2779 | */ | |
2780 | iocb_cmd_type = irsp->ulpCommand & CMD_IOCB_MASK; | |
2781 | type = lpfc_sli_iocb_cmd_type(iocb_cmd_type); | |
2782 | switch (type) { | |
2783 | case LPFC_SOL_IOCB: | |
2784 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
2785 | rc = lpfc_sli_process_sol_iocb(phba, pring, saveq); | |
2786 | spin_lock_irqsave(&phba->hbalock, iflag); | |
2787 | break; | |
2788 | ||
2789 | case LPFC_UNSOL_IOCB: | |
2790 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
2791 | rc = lpfc_sli_process_unsol_iocb(phba, pring, saveq); | |
2792 | spin_lock_irqsave(&phba->hbalock, iflag); | |
2793 | if (!rc) | |
2794 | free_saveq = 0; | |
2795 | break; | |
2796 | ||
2797 | case LPFC_ABORT_IOCB: | |
2798 | cmdiocbp = NULL; | |
2799 | if (irsp->ulpCommand != CMD_XRI_ABORTED_CX) | |
2800 | cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring, | |
2801 | saveq); | |
2802 | if (cmdiocbp) { | |
2803 | /* Call the specified completion routine */ | |
2804 | if (cmdiocbp->iocb_cmpl) { | |
2805 | spin_unlock_irqrestore(&phba->hbalock, | |
2806 | iflag); | |
2807 | (cmdiocbp->iocb_cmpl)(phba, cmdiocbp, | |
2808 | saveq); | |
2809 | spin_lock_irqsave(&phba->hbalock, | |
2810 | iflag); | |
2811 | } else | |
2812 | __lpfc_sli_release_iocbq(phba, | |
2813 | cmdiocbp); | |
2814 | } | |
2815 | break; | |
2816 | ||
2817 | case LPFC_UNKNOWN_IOCB: | |
2818 | if (irsp->ulpCommand == CMD_ADAPTER_MSG) { | |
2819 | char adaptermsg[LPFC_MAX_ADPTMSG]; | |
2820 | memset(adaptermsg, 0, LPFC_MAX_ADPTMSG); | |
2821 | memcpy(&adaptermsg[0], (uint8_t *)irsp, | |
2822 | MAX_MSG_DATA); | |
2823 | dev_warn(&((phba->pcidev)->dev), | |
2824 | "lpfc%d: %s\n", | |
2825 | phba->brd_no, adaptermsg); | |
2826 | } else { | |
2827 | /* Unknown IOCB command */ | |
2828 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
2829 | "0335 Unknown IOCB " | |
2830 | "command Data: x%x " | |
2831 | "x%x x%x x%x\n", | |
2832 | irsp->ulpCommand, | |
2833 | irsp->ulpStatus, | |
2834 | irsp->ulpIoTag, | |
2835 | irsp->ulpContext); | |
2836 | } | |
2837 | break; | |
2838 | } | |
2839 | ||
2840 | if (free_saveq) { | |
2841 | list_for_each_entry_safe(rspiocbp, next_iocb, | |
2842 | &saveq->list, list) { | |
2843 | list_del(&rspiocbp->list); | |
2844 | __lpfc_sli_release_iocbq(phba, rspiocbp); | |
2845 | } | |
2846 | __lpfc_sli_release_iocbq(phba, saveq); | |
2847 | } | |
2848 | rspiocbp = NULL; | |
2849 | } | |
2850 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
2851 | return rspiocbp; | |
2852 | } | |
2853 | ||
2854 | /** | |
2855 | * lpfc_sli_handle_slow_ring_event - Wrapper func for handling slow-path iocbs | |
e59058c4 JS |
2856 | * @phba: Pointer to HBA context object. |
2857 | * @pring: Pointer to driver SLI ring object. | |
2858 | * @mask: Host attention register mask for this ring. | |
2859 | * | |
3772a991 JS |
2860 | * This routine wraps the actual slow_ring event process routine from the |
2861 | * API jump table function pointer from the lpfc_hba struct. | |
e59058c4 | 2862 | **/ |
3772a991 | 2863 | void |
2e0fef85 JS |
2864 | lpfc_sli_handle_slow_ring_event(struct lpfc_hba *phba, |
2865 | struct lpfc_sli_ring *pring, uint32_t mask) | |
3772a991 JS |
2866 | { |
2867 | phba->lpfc_sli_handle_slow_ring_event(phba, pring, mask); | |
2868 | } | |
2869 | ||
2870 | /** | |
2871 | * lpfc_sli_handle_slow_ring_event_s3 - Handle SLI3 ring event for non-FCP rings | |
2872 | * @phba: Pointer to HBA context object. | |
2873 | * @pring: Pointer to driver SLI ring object. | |
2874 | * @mask: Host attention register mask for this ring. | |
2875 | * | |
2876 | * This function is called from the worker thread when there is a ring event | |
2877 | * for non-fcp rings. The caller does not hold any lock. The function will | |
2878 | * remove each response iocb in the response ring and calls the handle | |
2879 | * response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it. | |
2880 | **/ | |
2881 | static void | |
2882 | lpfc_sli_handle_slow_ring_event_s3(struct lpfc_hba *phba, | |
2883 | struct lpfc_sli_ring *pring, uint32_t mask) | |
dea3101e | 2884 | { |
34b02dcd | 2885 | struct lpfc_pgp *pgp; |
dea3101e | 2886 | IOCB_t *entry; |
2887 | IOCB_t *irsp = NULL; | |
2888 | struct lpfc_iocbq *rspiocbp = NULL; | |
dea3101e | 2889 | uint32_t portRspPut, portRspMax; |
dea3101e | 2890 | unsigned long iflag; |
3772a991 | 2891 | uint32_t status; |
dea3101e | 2892 | |
34b02dcd | 2893 | pgp = &phba->port_gp[pring->ringno]; |
2e0fef85 | 2894 | spin_lock_irqsave(&phba->hbalock, iflag); |
dea3101e | 2895 | pring->stats.iocb_event++; |
2896 | ||
dea3101e | 2897 | /* |
2898 | * The next available response entry should never exceed the maximum | |
2899 | * entries. If it does, treat it as an adapter hardware error. | |
2900 | */ | |
2901 | portRspMax = pring->numRiocb; | |
2902 | portRspPut = le32_to_cpu(pgp->rspPutInx); | |
2903 | if (portRspPut >= portRspMax) { | |
2904 | /* | |
025dfdaf | 2905 | * Ring <ringno> handler: portRspPut <portRspPut> is bigger than |
dea3101e | 2906 | * rsp ring <portRspMax> |
2907 | */ | |
ed957684 | 2908 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, |
e8b62011 | 2909 | "0303 Ring %d handler: portRspPut %d " |
025dfdaf | 2910 | "is bigger than rsp ring %d\n", |
e8b62011 | 2911 | pring->ringno, portRspPut, portRspMax); |
dea3101e | 2912 | |
2e0fef85 JS |
2913 | phba->link_state = LPFC_HBA_ERROR; |
2914 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
dea3101e | 2915 | |
2916 | phba->work_hs = HS_FFER3; | |
2917 | lpfc_handle_eratt(phba); | |
2918 | ||
3772a991 | 2919 | return; |
dea3101e | 2920 | } |
2921 | ||
2922 | rmb(); | |
dea3101e | 2923 | while (pring->rspidx != portRspPut) { |
2924 | /* | |
2925 | * Build a completion list and call the appropriate handler. | |
2926 | * The process is to get the next available response iocb, get | |
2927 | * a free iocb from the list, copy the response data into the | |
2928 | * free iocb, insert to the continuation list, and update the | |
2929 | * next response index to slim. This process makes response | |
2930 | * iocb's in the ring available to DMA as fast as possible but | |
2931 | * pays a penalty for a copy operation. Since the iocb is | |
2932 | * only 32 bytes, this penalty is considered small relative to | |
2933 | * the PCI reads for register values and a slim write. When | |
2934 | * the ulpLe field is set, the entire Command has been | |
2935 | * received. | |
2936 | */ | |
ed957684 JS |
2937 | entry = lpfc_resp_iocb(phba, pring); |
2938 | ||
858c9f6c | 2939 | phba->last_completion_time = jiffies; |
2e0fef85 | 2940 | rspiocbp = __lpfc_sli_get_iocbq(phba); |
dea3101e | 2941 | if (rspiocbp == NULL) { |
2942 | printk(KERN_ERR "%s: out of buffers! Failing " | |
cadbd4a5 | 2943 | "completion.\n", __func__); |
dea3101e | 2944 | break; |
2945 | } | |
2946 | ||
ed957684 JS |
2947 | lpfc_sli_pcimem_bcopy(entry, &rspiocbp->iocb, |
2948 | phba->iocb_rsp_size); | |
dea3101e | 2949 | irsp = &rspiocbp->iocb; |
2950 | ||
2951 | if (++pring->rspidx >= portRspMax) | |
2952 | pring->rspidx = 0; | |
2953 | ||
a58cbd52 JS |
2954 | if (pring->ringno == LPFC_ELS_RING) { |
2955 | lpfc_debugfs_slow_ring_trc(phba, | |
2956 | "IOCB rsp ring: wd4:x%08x wd6:x%08x wd7:x%08x", | |
2957 | *(((uint32_t *) irsp) + 4), | |
2958 | *(((uint32_t *) irsp) + 6), | |
2959 | *(((uint32_t *) irsp) + 7)); | |
2960 | } | |
2961 | ||
ed957684 | 2962 | writel(pring->rspidx, &phba->host_gp[pring->ringno].rspGetInx); |
dea3101e | 2963 | |
3772a991 JS |
2964 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
2965 | /* Handle the response IOCB */ | |
2966 | rspiocbp = lpfc_sli_sp_handle_rspiocb(phba, pring, rspiocbp); | |
2967 | spin_lock_irqsave(&phba->hbalock, iflag); | |
dea3101e | 2968 | |
2969 | /* | |
2970 | * If the port response put pointer has not been updated, sync | |
2971 | * the pgp->rspPutInx in the MAILBOX_tand fetch the new port | |
2972 | * response put pointer. | |
2973 | */ | |
2974 | if (pring->rspidx == portRspPut) { | |
2975 | portRspPut = le32_to_cpu(pgp->rspPutInx); | |
2976 | } | |
2977 | } /* while (pring->rspidx != portRspPut) */ | |
2978 | ||
92d7f7b0 | 2979 | if ((rspiocbp != NULL) && (mask & HA_R0RE_REQ)) { |
dea3101e | 2980 | /* At least one response entry has been freed */ |
2981 | pring->stats.iocb_rsp_full++; | |
2982 | /* SET RxRE_RSP in Chip Att register */ | |
2983 | status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4)); | |
2984 | writel(status, phba->CAregaddr); | |
2985 | readl(phba->CAregaddr); /* flush */ | |
2986 | } | |
2987 | if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) { | |
2988 | pring->flag &= ~LPFC_CALL_RING_AVAILABLE; | |
2989 | pring->stats.iocb_cmd_empty++; | |
2990 | ||
2991 | /* Force update of the local copy of cmdGetInx */ | |
2992 | pring->local_getidx = le32_to_cpu(pgp->cmdGetInx); | |
2993 | lpfc_sli_resume_iocb(phba, pring); | |
2994 | ||
2995 | if ((pring->lpfc_sli_cmd_available)) | |
2996 | (pring->lpfc_sli_cmd_available) (phba, pring); | |
2997 | ||
2998 | } | |
2999 | ||
2e0fef85 | 3000 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
3772a991 | 3001 | return; |
dea3101e | 3002 | } |
3003 | ||
4f774513 JS |
3004 | /** |
3005 | * lpfc_sli_handle_slow_ring_event_s4 - Handle SLI4 slow-path els events | |
3006 | * @phba: Pointer to HBA context object. | |
3007 | * @pring: Pointer to driver SLI ring object. | |
3008 | * @mask: Host attention register mask for this ring. | |
3009 | * | |
3010 | * This function is called from the worker thread when there is a pending | |
3011 | * ELS response iocb on the driver internal slow-path response iocb worker | |
3012 | * queue. The caller does not hold any lock. The function will remove each | |
3013 | * response iocb from the response worker queue and calls the handle | |
3014 | * response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it. | |
3015 | **/ | |
3016 | static void | |
3017 | lpfc_sli_handle_slow_ring_event_s4(struct lpfc_hba *phba, | |
3018 | struct lpfc_sli_ring *pring, uint32_t mask) | |
3019 | { | |
3020 | struct lpfc_iocbq *irspiocbq; | |
3021 | unsigned long iflag; | |
3022 | ||
3023 | while (!list_empty(&phba->sli4_hba.sp_rspiocb_work_queue)) { | |
3024 | /* Get the response iocb from the head of work queue */ | |
3025 | spin_lock_irqsave(&phba->hbalock, iflag); | |
3026 | list_remove_head(&phba->sli4_hba.sp_rspiocb_work_queue, | |
3027 | irspiocbq, struct lpfc_iocbq, list); | |
3028 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
3029 | /* Process the response iocb */ | |
3030 | lpfc_sli_sp_handle_rspiocb(phba, pring, irspiocbq); | |
3031 | } | |
3032 | } | |
3033 | ||
e59058c4 | 3034 | /** |
3621a710 | 3035 | * lpfc_sli_abort_iocb_ring - Abort all iocbs in the ring |
e59058c4 JS |
3036 | * @phba: Pointer to HBA context object. |
3037 | * @pring: Pointer to driver SLI ring object. | |
3038 | * | |
3039 | * This function aborts all iocbs in the given ring and frees all the iocb | |
3040 | * objects in txq. This function issues an abort iocb for all the iocb commands | |
3041 | * in txcmplq. The iocbs in the txcmplq is not guaranteed to complete before | |
3042 | * the return of this function. The caller is not required to hold any locks. | |
3043 | **/ | |
2e0fef85 | 3044 | void |
dea3101e | 3045 | lpfc_sli_abort_iocb_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) |
3046 | { | |
2534ba75 | 3047 | LIST_HEAD(completions); |
dea3101e | 3048 | struct lpfc_iocbq *iocb, *next_iocb; |
dea3101e | 3049 | |
92d7f7b0 JS |
3050 | if (pring->ringno == LPFC_ELS_RING) { |
3051 | lpfc_fabric_abort_hba(phba); | |
3052 | } | |
3053 | ||
dea3101e | 3054 | /* Error everything on txq and txcmplq |
3055 | * First do the txq. | |
3056 | */ | |
2e0fef85 | 3057 | spin_lock_irq(&phba->hbalock); |
2534ba75 | 3058 | list_splice_init(&pring->txq, &completions); |
dea3101e | 3059 | pring->txq_cnt = 0; |
dea3101e | 3060 | |
3061 | /* Next issue ABTS for everything on the txcmplq */ | |
2534ba75 JS |
3062 | list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) |
3063 | lpfc_sli_issue_abort_iotag(phba, pring, iocb); | |
dea3101e | 3064 | |
2e0fef85 | 3065 | spin_unlock_irq(&phba->hbalock); |
dea3101e | 3066 | |
a257bf90 JS |
3067 | /* Cancel all the IOCBs from the completions list */ |
3068 | lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, | |
3069 | IOERR_SLI_ABORTED); | |
dea3101e | 3070 | } |
3071 | ||
a8e497d5 | 3072 | /** |
3621a710 | 3073 | * lpfc_sli_flush_fcp_rings - flush all iocbs in the fcp ring |
a8e497d5 JS |
3074 | * @phba: Pointer to HBA context object. |
3075 | * | |
3076 | * This function flushes all iocbs in the fcp ring and frees all the iocb | |
3077 | * objects in txq and txcmplq. This function will not issue abort iocbs | |
3078 | * for all the iocb commands in txcmplq, they will just be returned with | |
3079 | * IOERR_SLI_DOWN. This function is invoked with EEH when device's PCI | |
3080 | * slot has been permanently disabled. | |
3081 | **/ | |
3082 | void | |
3083 | lpfc_sli_flush_fcp_rings(struct lpfc_hba *phba) | |
3084 | { | |
3085 | LIST_HEAD(txq); | |
3086 | LIST_HEAD(txcmplq); | |
a8e497d5 JS |
3087 | struct lpfc_sli *psli = &phba->sli; |
3088 | struct lpfc_sli_ring *pring; | |
3089 | ||
3090 | /* Currently, only one fcp ring */ | |
3091 | pring = &psli->ring[psli->fcp_ring]; | |
3092 | ||
3093 | spin_lock_irq(&phba->hbalock); | |
3094 | /* Retrieve everything on txq */ | |
3095 | list_splice_init(&pring->txq, &txq); | |
3096 | pring->txq_cnt = 0; | |
3097 | ||
3098 | /* Retrieve everything on the txcmplq */ | |
3099 | list_splice_init(&pring->txcmplq, &txcmplq); | |
3100 | pring->txcmplq_cnt = 0; | |
3101 | spin_unlock_irq(&phba->hbalock); | |
3102 | ||
3103 | /* Flush the txq */ | |
a257bf90 JS |
3104 | lpfc_sli_cancel_iocbs(phba, &txq, IOSTAT_LOCAL_REJECT, |
3105 | IOERR_SLI_DOWN); | |
a8e497d5 JS |
3106 | |
3107 | /* Flush the txcmpq */ | |
a257bf90 JS |
3108 | lpfc_sli_cancel_iocbs(phba, &txcmplq, IOSTAT_LOCAL_REJECT, |
3109 | IOERR_SLI_DOWN); | |
a8e497d5 JS |
3110 | } |
3111 | ||
e59058c4 | 3112 | /** |
3772a991 | 3113 | * lpfc_sli_brdready_s3 - Check for sli3 host ready status |
e59058c4 JS |
3114 | * @phba: Pointer to HBA context object. |
3115 | * @mask: Bit mask to be checked. | |
3116 | * | |
3117 | * This function reads the host status register and compares | |
3118 | * with the provided bit mask to check if HBA completed | |
3119 | * the restart. This function will wait in a loop for the | |
3120 | * HBA to complete restart. If the HBA does not restart within | |
3121 | * 15 iterations, the function will reset the HBA again. The | |
3122 | * function returns 1 when HBA fail to restart otherwise returns | |
3123 | * zero. | |
3124 | **/ | |
3772a991 JS |
3125 | static int |
3126 | lpfc_sli_brdready_s3(struct lpfc_hba *phba, uint32_t mask) | |
dea3101e | 3127 | { |
41415862 JW |
3128 | uint32_t status; |
3129 | int i = 0; | |
3130 | int retval = 0; | |
dea3101e | 3131 | |
41415862 JW |
3132 | /* Read the HBA Host Status Register */ |
3133 | status = readl(phba->HSregaddr); | |
dea3101e | 3134 | |
41415862 JW |
3135 | /* |
3136 | * Check status register every 100ms for 5 retries, then every | |
3137 | * 500ms for 5, then every 2.5 sec for 5, then reset board and | |
3138 | * every 2.5 sec for 4. | |
3139 | * Break our of the loop if errors occurred during init. | |
3140 | */ | |
3141 | while (((status & mask) != mask) && | |
3142 | !(status & HS_FFERM) && | |
3143 | i++ < 20) { | |
dea3101e | 3144 | |
41415862 JW |
3145 | if (i <= 5) |
3146 | msleep(10); | |
3147 | else if (i <= 10) | |
3148 | msleep(500); | |
3149 | else | |
3150 | msleep(2500); | |
dea3101e | 3151 | |
41415862 | 3152 | if (i == 15) { |
2e0fef85 | 3153 | /* Do post */ |
92d7f7b0 | 3154 | phba->pport->port_state = LPFC_VPORT_UNKNOWN; |
41415862 JW |
3155 | lpfc_sli_brdrestart(phba); |
3156 | } | |
3157 | /* Read the HBA Host Status Register */ | |
3158 | status = readl(phba->HSregaddr); | |
3159 | } | |
dea3101e | 3160 | |
41415862 JW |
3161 | /* Check to see if any errors occurred during init */ |
3162 | if ((status & HS_FFERM) || (i >= 20)) { | |
2e0fef85 | 3163 | phba->link_state = LPFC_HBA_ERROR; |
41415862 | 3164 | retval = 1; |
dea3101e | 3165 | } |
dea3101e | 3166 | |
41415862 JW |
3167 | return retval; |
3168 | } | |
dea3101e | 3169 | |
da0436e9 JS |
3170 | /** |
3171 | * lpfc_sli_brdready_s4 - Check for sli4 host ready status | |
3172 | * @phba: Pointer to HBA context object. | |
3173 | * @mask: Bit mask to be checked. | |
3174 | * | |
3175 | * This function checks the host status register to check if HBA is | |
3176 | * ready. This function will wait in a loop for the HBA to be ready | |
3177 | * If the HBA is not ready , the function will will reset the HBA PCI | |
3178 | * function again. The function returns 1 when HBA fail to be ready | |
3179 | * otherwise returns zero. | |
3180 | **/ | |
3181 | static int | |
3182 | lpfc_sli_brdready_s4(struct lpfc_hba *phba, uint32_t mask) | |
3183 | { | |
3184 | uint32_t status; | |
3185 | int retval = 0; | |
3186 | ||
3187 | /* Read the HBA Host Status Register */ | |
3188 | status = lpfc_sli4_post_status_check(phba); | |
3189 | ||
3190 | if (status) { | |
3191 | phba->pport->port_state = LPFC_VPORT_UNKNOWN; | |
3192 | lpfc_sli_brdrestart(phba); | |
3193 | status = lpfc_sli4_post_status_check(phba); | |
3194 | } | |
3195 | ||
3196 | /* Check to see if any errors occurred during init */ | |
3197 | if (status) { | |
3198 | phba->link_state = LPFC_HBA_ERROR; | |
3199 | retval = 1; | |
3200 | } else | |
3201 | phba->sli4_hba.intr_enable = 0; | |
3202 | ||
3203 | return retval; | |
3204 | } | |
3205 | ||
3206 | /** | |
3207 | * lpfc_sli_brdready - Wrapper func for checking the hba readyness | |
3208 | * @phba: Pointer to HBA context object. | |
3209 | * @mask: Bit mask to be checked. | |
3210 | * | |
3211 | * This routine wraps the actual SLI3 or SLI4 hba readyness check routine | |
3212 | * from the API jump table function pointer from the lpfc_hba struct. | |
3213 | **/ | |
3214 | int | |
3215 | lpfc_sli_brdready(struct lpfc_hba *phba, uint32_t mask) | |
3216 | { | |
3217 | return phba->lpfc_sli_brdready(phba, mask); | |
3218 | } | |
3219 | ||
9290831f JS |
3220 | #define BARRIER_TEST_PATTERN (0xdeadbeef) |
3221 | ||
e59058c4 | 3222 | /** |
3621a710 | 3223 | * lpfc_reset_barrier - Make HBA ready for HBA reset |
e59058c4 JS |
3224 | * @phba: Pointer to HBA context object. |
3225 | * | |
3226 | * This function is called before resetting an HBA. This | |
3227 | * function requests HBA to quiesce DMAs before a reset. | |
3228 | **/ | |
2e0fef85 | 3229 | void lpfc_reset_barrier(struct lpfc_hba *phba) |
9290831f | 3230 | { |
65a29c16 JS |
3231 | uint32_t __iomem *resp_buf; |
3232 | uint32_t __iomem *mbox_buf; | |
9290831f JS |
3233 | volatile uint32_t mbox; |
3234 | uint32_t hc_copy; | |
3235 | int i; | |
3236 | uint8_t hdrtype; | |
3237 | ||
3238 | pci_read_config_byte(phba->pcidev, PCI_HEADER_TYPE, &hdrtype); | |
3239 | if (hdrtype != 0x80 || | |
3240 | (FC_JEDEC_ID(phba->vpd.rev.biuRev) != HELIOS_JEDEC_ID && | |
3241 | FC_JEDEC_ID(phba->vpd.rev.biuRev) != THOR_JEDEC_ID)) | |
3242 | return; | |
3243 | ||
3244 | /* | |
3245 | * Tell the other part of the chip to suspend temporarily all | |
3246 | * its DMA activity. | |
3247 | */ | |
65a29c16 | 3248 | resp_buf = phba->MBslimaddr; |
9290831f JS |
3249 | |
3250 | /* Disable the error attention */ | |
3251 | hc_copy = readl(phba->HCregaddr); | |
3252 | writel((hc_copy & ~HC_ERINT_ENA), phba->HCregaddr); | |
3253 | readl(phba->HCregaddr); /* flush */ | |
2e0fef85 | 3254 | phba->link_flag |= LS_IGNORE_ERATT; |
9290831f JS |
3255 | |
3256 | if (readl(phba->HAregaddr) & HA_ERATT) { | |
3257 | /* Clear Chip error bit */ | |
3258 | writel(HA_ERATT, phba->HAregaddr); | |
2e0fef85 | 3259 | phba->pport->stopped = 1; |
9290831f JS |
3260 | } |
3261 | ||
3262 | mbox = 0; | |
3263 | ((MAILBOX_t *)&mbox)->mbxCommand = MBX_KILL_BOARD; | |
3264 | ((MAILBOX_t *)&mbox)->mbxOwner = OWN_CHIP; | |
3265 | ||
3266 | writel(BARRIER_TEST_PATTERN, (resp_buf + 1)); | |
65a29c16 | 3267 | mbox_buf = phba->MBslimaddr; |
9290831f JS |
3268 | writel(mbox, mbox_buf); |
3269 | ||
3270 | for (i = 0; | |
3271 | readl(resp_buf + 1) != ~(BARRIER_TEST_PATTERN) && i < 50; i++) | |
3272 | mdelay(1); | |
3273 | ||
3274 | if (readl(resp_buf + 1) != ~(BARRIER_TEST_PATTERN)) { | |
f4b4c68f | 3275 | if (phba->sli.sli_flag & LPFC_SLI_ACTIVE || |
2e0fef85 | 3276 | phba->pport->stopped) |
9290831f JS |
3277 | goto restore_hc; |
3278 | else | |
3279 | goto clear_errat; | |
3280 | } | |
3281 | ||
3282 | ((MAILBOX_t *)&mbox)->mbxOwner = OWN_HOST; | |
3283 | for (i = 0; readl(resp_buf) != mbox && i < 500; i++) | |
3284 | mdelay(1); | |
3285 | ||
3286 | clear_errat: | |
3287 | ||
3288 | while (!(readl(phba->HAregaddr) & HA_ERATT) && ++i < 500) | |
3289 | mdelay(1); | |
3290 | ||
3291 | if (readl(phba->HAregaddr) & HA_ERATT) { | |
3292 | writel(HA_ERATT, phba->HAregaddr); | |
2e0fef85 | 3293 | phba->pport->stopped = 1; |
9290831f JS |
3294 | } |
3295 | ||
3296 | restore_hc: | |
2e0fef85 | 3297 | phba->link_flag &= ~LS_IGNORE_ERATT; |
9290831f JS |
3298 | writel(hc_copy, phba->HCregaddr); |
3299 | readl(phba->HCregaddr); /* flush */ | |
3300 | } | |
3301 | ||
e59058c4 | 3302 | /** |
3621a710 | 3303 | * lpfc_sli_brdkill - Issue a kill_board mailbox command |
e59058c4 JS |
3304 | * @phba: Pointer to HBA context object. |
3305 | * | |
3306 | * This function issues a kill_board mailbox command and waits for | |
3307 | * the error attention interrupt. This function is called for stopping | |
3308 | * the firmware processing. The caller is not required to hold any | |
3309 | * locks. This function calls lpfc_hba_down_post function to free | |
3310 | * any pending commands after the kill. The function will return 1 when it | |
3311 | * fails to kill the board else will return 0. | |
3312 | **/ | |
41415862 | 3313 | int |
2e0fef85 | 3314 | lpfc_sli_brdkill(struct lpfc_hba *phba) |
41415862 JW |
3315 | { |
3316 | struct lpfc_sli *psli; | |
3317 | LPFC_MBOXQ_t *pmb; | |
3318 | uint32_t status; | |
3319 | uint32_t ha_copy; | |
3320 | int retval; | |
3321 | int i = 0; | |
dea3101e | 3322 | |
41415862 | 3323 | psli = &phba->sli; |
dea3101e | 3324 | |
41415862 | 3325 | /* Kill HBA */ |
ed957684 | 3326 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, |
e8b62011 JS |
3327 | "0329 Kill HBA Data: x%x x%x\n", |
3328 | phba->pport->port_state, psli->sli_flag); | |
41415862 | 3329 | |
98c9ea5c JS |
3330 | pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
3331 | if (!pmb) | |
41415862 | 3332 | return 1; |
41415862 JW |
3333 | |
3334 | /* Disable the error attention */ | |
2e0fef85 | 3335 | spin_lock_irq(&phba->hbalock); |
41415862 JW |
3336 | status = readl(phba->HCregaddr); |
3337 | status &= ~HC_ERINT_ENA; | |
3338 | writel(status, phba->HCregaddr); | |
3339 | readl(phba->HCregaddr); /* flush */ | |
2e0fef85 JS |
3340 | phba->link_flag |= LS_IGNORE_ERATT; |
3341 | spin_unlock_irq(&phba->hbalock); | |
41415862 JW |
3342 | |
3343 | lpfc_kill_board(phba, pmb); | |
3344 | pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
3345 | retval = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); | |
3346 | ||
3347 | if (retval != MBX_SUCCESS) { | |
3348 | if (retval != MBX_BUSY) | |
3349 | mempool_free(pmb, phba->mbox_mem_pool); | |
2e0fef85 JS |
3350 | spin_lock_irq(&phba->hbalock); |
3351 | phba->link_flag &= ~LS_IGNORE_ERATT; | |
3352 | spin_unlock_irq(&phba->hbalock); | |
41415862 JW |
3353 | return 1; |
3354 | } | |
3355 | ||
f4b4c68f JS |
3356 | spin_lock_irq(&phba->hbalock); |
3357 | psli->sli_flag &= ~LPFC_SLI_ACTIVE; | |
3358 | spin_unlock_irq(&phba->hbalock); | |
9290831f | 3359 | |
41415862 JW |
3360 | mempool_free(pmb, phba->mbox_mem_pool); |
3361 | ||
3362 | /* There is no completion for a KILL_BOARD mbox cmd. Check for an error | |
3363 | * attention every 100ms for 3 seconds. If we don't get ERATT after | |
3364 | * 3 seconds we still set HBA_ERROR state because the status of the | |
3365 | * board is now undefined. | |
3366 | */ | |
3367 | ha_copy = readl(phba->HAregaddr); | |
3368 | ||
3369 | while ((i++ < 30) && !(ha_copy & HA_ERATT)) { | |
3370 | mdelay(100); | |
3371 | ha_copy = readl(phba->HAregaddr); | |
3372 | } | |
3373 | ||
3374 | del_timer_sync(&psli->mbox_tmo); | |
9290831f JS |
3375 | if (ha_copy & HA_ERATT) { |
3376 | writel(HA_ERATT, phba->HAregaddr); | |
2e0fef85 | 3377 | phba->pport->stopped = 1; |
9290831f | 3378 | } |
2e0fef85 | 3379 | spin_lock_irq(&phba->hbalock); |
41415862 | 3380 | psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; |
04c68496 | 3381 | psli->mbox_active = NULL; |
2e0fef85 JS |
3382 | phba->link_flag &= ~LS_IGNORE_ERATT; |
3383 | spin_unlock_irq(&phba->hbalock); | |
41415862 | 3384 | |
41415862 | 3385 | lpfc_hba_down_post(phba); |
2e0fef85 | 3386 | phba->link_state = LPFC_HBA_ERROR; |
41415862 | 3387 | |
2e0fef85 | 3388 | return ha_copy & HA_ERATT ? 0 : 1; |
dea3101e | 3389 | } |
3390 | ||
e59058c4 | 3391 | /** |
3772a991 | 3392 | * lpfc_sli_brdreset - Reset a sli-2 or sli-3 HBA |
e59058c4 JS |
3393 | * @phba: Pointer to HBA context object. |
3394 | * | |
3395 | * This function resets the HBA by writing HC_INITFF to the control | |
3396 | * register. After the HBA resets, this function resets all the iocb ring | |
3397 | * indices. This function disables PCI layer parity checking during | |
3398 | * the reset. | |
3399 | * This function returns 0 always. | |
3400 | * The caller is not required to hold any locks. | |
3401 | **/ | |
41415862 | 3402 | int |
2e0fef85 | 3403 | lpfc_sli_brdreset(struct lpfc_hba *phba) |
dea3101e | 3404 | { |
41415862 | 3405 | struct lpfc_sli *psli; |
dea3101e | 3406 | struct lpfc_sli_ring *pring; |
41415862 | 3407 | uint16_t cfg_value; |
dea3101e | 3408 | int i; |
dea3101e | 3409 | |
41415862 | 3410 | psli = &phba->sli; |
dea3101e | 3411 | |
41415862 JW |
3412 | /* Reset HBA */ |
3413 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
e8b62011 | 3414 | "0325 Reset HBA Data: x%x x%x\n", |
2e0fef85 | 3415 | phba->pport->port_state, psli->sli_flag); |
dea3101e | 3416 | |
3417 | /* perform board reset */ | |
3418 | phba->fc_eventTag = 0; | |
2e0fef85 JS |
3419 | phba->pport->fc_myDID = 0; |
3420 | phba->pport->fc_prevDID = 0; | |
dea3101e | 3421 | |
41415862 JW |
3422 | /* Turn off parity checking and serr during the physical reset */ |
3423 | pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value); | |
3424 | pci_write_config_word(phba->pcidev, PCI_COMMAND, | |
3425 | (cfg_value & | |
3426 | ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR))); | |
3427 | ||
3772a991 JS |
3428 | psli->sli_flag &= ~(LPFC_SLI_ACTIVE | LPFC_PROCESS_LA); |
3429 | ||
41415862 JW |
3430 | /* Now toggle INITFF bit in the Host Control Register */ |
3431 | writel(HC_INITFF, phba->HCregaddr); | |
3432 | mdelay(1); | |
3433 | readl(phba->HCregaddr); /* flush */ | |
3434 | writel(0, phba->HCregaddr); | |
3435 | readl(phba->HCregaddr); /* flush */ | |
3436 | ||
3437 | /* Restore PCI cmd register */ | |
3438 | pci_write_config_word(phba->pcidev, PCI_COMMAND, cfg_value); | |
dea3101e | 3439 | |
3440 | /* Initialize relevant SLI info */ | |
41415862 JW |
3441 | for (i = 0; i < psli->num_rings; i++) { |
3442 | pring = &psli->ring[i]; | |
dea3101e | 3443 | pring->flag = 0; |
3444 | pring->rspidx = 0; | |
3445 | pring->next_cmdidx = 0; | |
3446 | pring->local_getidx = 0; | |
3447 | pring->cmdidx = 0; | |
3448 | pring->missbufcnt = 0; | |
3449 | } | |
dea3101e | 3450 | |
2e0fef85 | 3451 | phba->link_state = LPFC_WARM_START; |
41415862 JW |
3452 | return 0; |
3453 | } | |
3454 | ||
e59058c4 | 3455 | /** |
da0436e9 JS |
3456 | * lpfc_sli4_brdreset - Reset a sli-4 HBA |
3457 | * @phba: Pointer to HBA context object. | |
3458 | * | |
3459 | * This function resets a SLI4 HBA. This function disables PCI layer parity | |
3460 | * checking during resets the device. The caller is not required to hold | |
3461 | * any locks. | |
3462 | * | |
3463 | * This function returns 0 always. | |
3464 | **/ | |
3465 | int | |
3466 | lpfc_sli4_brdreset(struct lpfc_hba *phba) | |
3467 | { | |
3468 | struct lpfc_sli *psli = &phba->sli; | |
3469 | uint16_t cfg_value; | |
3470 | uint8_t qindx; | |
3471 | ||
3472 | /* Reset HBA */ | |
3473 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
3474 | "0295 Reset HBA Data: x%x x%x\n", | |
3475 | phba->pport->port_state, psli->sli_flag); | |
3476 | ||
3477 | /* perform board reset */ | |
3478 | phba->fc_eventTag = 0; | |
3479 | phba->pport->fc_myDID = 0; | |
3480 | phba->pport->fc_prevDID = 0; | |
3481 | ||
3482 | /* Turn off parity checking and serr during the physical reset */ | |
3483 | pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value); | |
3484 | pci_write_config_word(phba->pcidev, PCI_COMMAND, | |
3485 | (cfg_value & | |
3486 | ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR))); | |
3487 | ||
3488 | spin_lock_irq(&phba->hbalock); | |
3489 | psli->sli_flag &= ~(LPFC_PROCESS_LA); | |
3490 | phba->fcf.fcf_flag = 0; | |
3491 | /* Clean up the child queue list for the CQs */ | |
3492 | list_del_init(&phba->sli4_hba.mbx_wq->list); | |
3493 | list_del_init(&phba->sli4_hba.els_wq->list); | |
3494 | list_del_init(&phba->sli4_hba.hdr_rq->list); | |
3495 | list_del_init(&phba->sli4_hba.dat_rq->list); | |
3496 | list_del_init(&phba->sli4_hba.mbx_cq->list); | |
3497 | list_del_init(&phba->sli4_hba.els_cq->list); | |
3498 | list_del_init(&phba->sli4_hba.rxq_cq->list); | |
3499 | for (qindx = 0; qindx < phba->cfg_fcp_wq_count; qindx++) | |
3500 | list_del_init(&phba->sli4_hba.fcp_wq[qindx]->list); | |
3501 | for (qindx = 0; qindx < phba->cfg_fcp_eq_count; qindx++) | |
3502 | list_del_init(&phba->sli4_hba.fcp_cq[qindx]->list); | |
3503 | spin_unlock_irq(&phba->hbalock); | |
3504 | ||
3505 | /* Now physically reset the device */ | |
3506 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
3507 | "0389 Performing PCI function reset!\n"); | |
3508 | /* Perform FCoE PCI function reset */ | |
3509 | lpfc_pci_function_reset(phba); | |
3510 | ||
3511 | return 0; | |
3512 | } | |
3513 | ||
3514 | /** | |
3515 | * lpfc_sli_brdrestart_s3 - Restart a sli-3 hba | |
e59058c4 JS |
3516 | * @phba: Pointer to HBA context object. |
3517 | * | |
3518 | * This function is called in the SLI initialization code path to | |
3519 | * restart the HBA. The caller is not required to hold any lock. | |
3520 | * This function writes MBX_RESTART mailbox command to the SLIM and | |
3521 | * resets the HBA. At the end of the function, it calls lpfc_hba_down_post | |
3522 | * function to free any pending commands. The function enables | |
3523 | * POST only during the first initialization. The function returns zero. | |
3524 | * The function does not guarantee completion of MBX_RESTART mailbox | |
3525 | * command before the return of this function. | |
3526 | **/ | |
da0436e9 JS |
3527 | static int |
3528 | lpfc_sli_brdrestart_s3(struct lpfc_hba *phba) | |
41415862 JW |
3529 | { |
3530 | MAILBOX_t *mb; | |
3531 | struct lpfc_sli *psli; | |
41415862 JW |
3532 | volatile uint32_t word0; |
3533 | void __iomem *to_slim; | |
3534 | ||
2e0fef85 | 3535 | spin_lock_irq(&phba->hbalock); |
41415862 JW |
3536 | |
3537 | psli = &phba->sli; | |
3538 | ||
3539 | /* Restart HBA */ | |
3540 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
e8b62011 | 3541 | "0337 Restart HBA Data: x%x x%x\n", |
2e0fef85 | 3542 | phba->pport->port_state, psli->sli_flag); |
41415862 JW |
3543 | |
3544 | word0 = 0; | |
3545 | mb = (MAILBOX_t *) &word0; | |
3546 | mb->mbxCommand = MBX_RESTART; | |
3547 | mb->mbxHc = 1; | |
3548 | ||
9290831f JS |
3549 | lpfc_reset_barrier(phba); |
3550 | ||
41415862 JW |
3551 | to_slim = phba->MBslimaddr; |
3552 | writel(*(uint32_t *) mb, to_slim); | |
3553 | readl(to_slim); /* flush */ | |
3554 | ||
3555 | /* Only skip post after fc_ffinit is completed */ | |
eaf15d5b | 3556 | if (phba->pport->port_state) |
41415862 | 3557 | word0 = 1; /* This is really setting up word1 */ |
eaf15d5b | 3558 | else |
41415862 | 3559 | word0 = 0; /* This is really setting up word1 */ |
65a29c16 | 3560 | to_slim = phba->MBslimaddr + sizeof (uint32_t); |
41415862 JW |
3561 | writel(*(uint32_t *) mb, to_slim); |
3562 | readl(to_slim); /* flush */ | |
dea3101e | 3563 | |
41415862 | 3564 | lpfc_sli_brdreset(phba); |
2e0fef85 JS |
3565 | phba->pport->stopped = 0; |
3566 | phba->link_state = LPFC_INIT_START; | |
da0436e9 | 3567 | phba->hba_flag = 0; |
2e0fef85 | 3568 | spin_unlock_irq(&phba->hbalock); |
41415862 | 3569 | |
64ba8818 JS |
3570 | memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets)); |
3571 | psli->stats_start = get_seconds(); | |
3572 | ||
eaf15d5b JS |
3573 | /* Give the INITFF and Post time to settle. */ |
3574 | mdelay(100); | |
41415862 JW |
3575 | |
3576 | lpfc_hba_down_post(phba); | |
dea3101e | 3577 | |
3578 | return 0; | |
3579 | } | |
3580 | ||
da0436e9 JS |
3581 | /** |
3582 | * lpfc_sli_brdrestart_s4 - Restart the sli-4 hba | |
3583 | * @phba: Pointer to HBA context object. | |
3584 | * | |
3585 | * This function is called in the SLI initialization code path to restart | |
3586 | * a SLI4 HBA. The caller is not required to hold any lock. | |
3587 | * At the end of the function, it calls lpfc_hba_down_post function to | |
3588 | * free any pending commands. | |
3589 | **/ | |
3590 | static int | |
3591 | lpfc_sli_brdrestart_s4(struct lpfc_hba *phba) | |
3592 | { | |
3593 | struct lpfc_sli *psli = &phba->sli; | |
3594 | ||
3595 | ||
3596 | /* Restart HBA */ | |
3597 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
3598 | "0296 Restart HBA Data: x%x x%x\n", | |
3599 | phba->pport->port_state, psli->sli_flag); | |
3600 | ||
3601 | lpfc_sli4_brdreset(phba); | |
3602 | ||
3603 | spin_lock_irq(&phba->hbalock); | |
3604 | phba->pport->stopped = 0; | |
3605 | phba->link_state = LPFC_INIT_START; | |
3606 | phba->hba_flag = 0; | |
3607 | spin_unlock_irq(&phba->hbalock); | |
3608 | ||
3609 | memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets)); | |
3610 | psli->stats_start = get_seconds(); | |
3611 | ||
3612 | lpfc_hba_down_post(phba); | |
3613 | ||
3614 | return 0; | |
3615 | } | |
3616 | ||
3617 | /** | |
3618 | * lpfc_sli_brdrestart - Wrapper func for restarting hba | |
3619 | * @phba: Pointer to HBA context object. | |
3620 | * | |
3621 | * This routine wraps the actual SLI3 or SLI4 hba restart routine from the | |
3622 | * API jump table function pointer from the lpfc_hba struct. | |
3623 | **/ | |
3624 | int | |
3625 | lpfc_sli_brdrestart(struct lpfc_hba *phba) | |
3626 | { | |
3627 | return phba->lpfc_sli_brdrestart(phba); | |
3628 | } | |
3629 | ||
e59058c4 | 3630 | /** |
3621a710 | 3631 | * lpfc_sli_chipset_init - Wait for the restart of the HBA after a restart |
e59058c4 JS |
3632 | * @phba: Pointer to HBA context object. |
3633 | * | |
3634 | * This function is called after a HBA restart to wait for successful | |
3635 | * restart of the HBA. Successful restart of the HBA is indicated by | |
3636 | * HS_FFRDY and HS_MBRDY bits. If the HBA fails to restart even after 15 | |
3637 | * iteration, the function will restart the HBA again. The function returns | |
3638 | * zero if HBA successfully restarted else returns negative error code. | |
3639 | **/ | |
dea3101e | 3640 | static int |
3641 | lpfc_sli_chipset_init(struct lpfc_hba *phba) | |
3642 | { | |
3643 | uint32_t status, i = 0; | |
3644 | ||
3645 | /* Read the HBA Host Status Register */ | |
3646 | status = readl(phba->HSregaddr); | |
3647 | ||
3648 | /* Check status register to see what current state is */ | |
3649 | i = 0; | |
3650 | while ((status & (HS_FFRDY | HS_MBRDY)) != (HS_FFRDY | HS_MBRDY)) { | |
3651 | ||
3652 | /* Check every 100ms for 5 retries, then every 500ms for 5, then | |
3653 | * every 2.5 sec for 5, then reset board and every 2.5 sec for | |
3654 | * 4. | |
3655 | */ | |
3656 | if (i++ >= 20) { | |
3657 | /* Adapter failed to init, timeout, status reg | |
3658 | <status> */ | |
ed957684 | 3659 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
e8b62011 | 3660 | "0436 Adapter failed to init, " |
09372820 JS |
3661 | "timeout, status reg x%x, " |
3662 | "FW Data: A8 x%x AC x%x\n", status, | |
3663 | readl(phba->MBslimaddr + 0xa8), | |
3664 | readl(phba->MBslimaddr + 0xac)); | |
2e0fef85 | 3665 | phba->link_state = LPFC_HBA_ERROR; |
dea3101e | 3666 | return -ETIMEDOUT; |
3667 | } | |
3668 | ||
3669 | /* Check to see if any errors occurred during init */ | |
3670 | if (status & HS_FFERM) { | |
3671 | /* ERROR: During chipset initialization */ | |
3672 | /* Adapter failed to init, chipset, status reg | |
3673 | <status> */ | |
ed957684 | 3674 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
e8b62011 | 3675 | "0437 Adapter failed to init, " |
09372820 JS |
3676 | "chipset, status reg x%x, " |
3677 | "FW Data: A8 x%x AC x%x\n", status, | |
3678 | readl(phba->MBslimaddr + 0xa8), | |
3679 | readl(phba->MBslimaddr + 0xac)); | |
2e0fef85 | 3680 | phba->link_state = LPFC_HBA_ERROR; |
dea3101e | 3681 | return -EIO; |
3682 | } | |
3683 | ||
3684 | if (i <= 5) { | |
3685 | msleep(10); | |
3686 | } else if (i <= 10) { | |
3687 | msleep(500); | |
3688 | } else { | |
3689 | msleep(2500); | |
3690 | } | |
3691 | ||
3692 | if (i == 15) { | |
2e0fef85 | 3693 | /* Do post */ |
92d7f7b0 | 3694 | phba->pport->port_state = LPFC_VPORT_UNKNOWN; |
41415862 | 3695 | lpfc_sli_brdrestart(phba); |
dea3101e | 3696 | } |
3697 | /* Read the HBA Host Status Register */ | |
3698 | status = readl(phba->HSregaddr); | |
3699 | } | |
3700 | ||
3701 | /* Check to see if any errors occurred during init */ | |
3702 | if (status & HS_FFERM) { | |
3703 | /* ERROR: During chipset initialization */ | |
3704 | /* Adapter failed to init, chipset, status reg <status> */ | |
ed957684 | 3705 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
e8b62011 | 3706 | "0438 Adapter failed to init, chipset, " |
09372820 JS |
3707 | "status reg x%x, " |
3708 | "FW Data: A8 x%x AC x%x\n", status, | |
3709 | readl(phba->MBslimaddr + 0xa8), | |
3710 | readl(phba->MBslimaddr + 0xac)); | |
2e0fef85 | 3711 | phba->link_state = LPFC_HBA_ERROR; |
dea3101e | 3712 | return -EIO; |
3713 | } | |
3714 | ||
3715 | /* Clear all interrupt enable conditions */ | |
3716 | writel(0, phba->HCregaddr); | |
3717 | readl(phba->HCregaddr); /* flush */ | |
3718 | ||
3719 | /* setup host attn register */ | |
3720 | writel(0xffffffff, phba->HAregaddr); | |
3721 | readl(phba->HAregaddr); /* flush */ | |
3722 | return 0; | |
3723 | } | |
3724 | ||
e59058c4 | 3725 | /** |
3621a710 | 3726 | * lpfc_sli_hbq_count - Get the number of HBQs to be configured |
e59058c4 JS |
3727 | * |
3728 | * This function calculates and returns the number of HBQs required to be | |
3729 | * configured. | |
3730 | **/ | |
78b2d852 | 3731 | int |
ed957684 JS |
3732 | lpfc_sli_hbq_count(void) |
3733 | { | |
92d7f7b0 | 3734 | return ARRAY_SIZE(lpfc_hbq_defs); |
ed957684 JS |
3735 | } |
3736 | ||
e59058c4 | 3737 | /** |
3621a710 | 3738 | * lpfc_sli_hbq_entry_count - Calculate total number of hbq entries |
e59058c4 JS |
3739 | * |
3740 | * This function adds the number of hbq entries in every HBQ to get | |
3741 | * the total number of hbq entries required for the HBA and returns | |
3742 | * the total count. | |
3743 | **/ | |
ed957684 JS |
3744 | static int |
3745 | lpfc_sli_hbq_entry_count(void) | |
3746 | { | |
3747 | int hbq_count = lpfc_sli_hbq_count(); | |
3748 | int count = 0; | |
3749 | int i; | |
3750 | ||
3751 | for (i = 0; i < hbq_count; ++i) | |
92d7f7b0 | 3752 | count += lpfc_hbq_defs[i]->entry_count; |
ed957684 JS |
3753 | return count; |
3754 | } | |
3755 | ||
e59058c4 | 3756 | /** |
3621a710 | 3757 | * lpfc_sli_hbq_size - Calculate memory required for all hbq entries |
e59058c4 JS |
3758 | * |
3759 | * This function calculates amount of memory required for all hbq entries | |
3760 | * to be configured and returns the total memory required. | |
3761 | **/ | |
dea3101e | 3762 | int |
ed957684 JS |
3763 | lpfc_sli_hbq_size(void) |
3764 | { | |
3765 | return lpfc_sli_hbq_entry_count() * sizeof(struct lpfc_hbq_entry); | |
3766 | } | |
3767 | ||
e59058c4 | 3768 | /** |
3621a710 | 3769 | * lpfc_sli_hbq_setup - configure and initialize HBQs |
e59058c4 JS |
3770 | * @phba: Pointer to HBA context object. |
3771 | * | |
3772 | * This function is called during the SLI initialization to configure | |
3773 | * all the HBQs and post buffers to the HBQ. The caller is not | |
3774 | * required to hold any locks. This function will return zero if successful | |
3775 | * else it will return negative error code. | |
3776 | **/ | |
ed957684 JS |
3777 | static int |
3778 | lpfc_sli_hbq_setup(struct lpfc_hba *phba) | |
3779 | { | |
3780 | int hbq_count = lpfc_sli_hbq_count(); | |
3781 | LPFC_MBOXQ_t *pmb; | |
3782 | MAILBOX_t *pmbox; | |
3783 | uint32_t hbqno; | |
3784 | uint32_t hbq_entry_index; | |
ed957684 | 3785 | |
92d7f7b0 JS |
3786 | /* Get a Mailbox buffer to setup mailbox |
3787 | * commands for HBA initialization | |
3788 | */ | |
ed957684 JS |
3789 | pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
3790 | ||
3791 | if (!pmb) | |
3792 | return -ENOMEM; | |
3793 | ||
04c68496 | 3794 | pmbox = &pmb->u.mb; |
ed957684 JS |
3795 | |
3796 | /* Initialize the struct lpfc_sli_hbq structure for each hbq */ | |
3797 | phba->link_state = LPFC_INIT_MBX_CMDS; | |
3163f725 | 3798 | phba->hbq_in_use = 1; |
ed957684 JS |
3799 | |
3800 | hbq_entry_index = 0; | |
3801 | for (hbqno = 0; hbqno < hbq_count; ++hbqno) { | |
3802 | phba->hbqs[hbqno].next_hbqPutIdx = 0; | |
3803 | phba->hbqs[hbqno].hbqPutIdx = 0; | |
3804 | phba->hbqs[hbqno].local_hbqGetIdx = 0; | |
3805 | phba->hbqs[hbqno].entry_count = | |
92d7f7b0 | 3806 | lpfc_hbq_defs[hbqno]->entry_count; |
51ef4c26 JS |
3807 | lpfc_config_hbq(phba, hbqno, lpfc_hbq_defs[hbqno], |
3808 | hbq_entry_index, pmb); | |
ed957684 JS |
3809 | hbq_entry_index += phba->hbqs[hbqno].entry_count; |
3810 | ||
3811 | if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) { | |
3812 | /* Adapter failed to init, mbxCmd <cmd> CFG_RING, | |
3813 | mbxStatus <status>, ring <num> */ | |
3814 | ||
3815 | lpfc_printf_log(phba, KERN_ERR, | |
92d7f7b0 | 3816 | LOG_SLI | LOG_VPORT, |
e8b62011 | 3817 | "1805 Adapter failed to init. " |
ed957684 | 3818 | "Data: x%x x%x x%x\n", |
e8b62011 | 3819 | pmbox->mbxCommand, |
ed957684 JS |
3820 | pmbox->mbxStatus, hbqno); |
3821 | ||
3822 | phba->link_state = LPFC_HBA_ERROR; | |
3823 | mempool_free(pmb, phba->mbox_mem_pool); | |
ed957684 JS |
3824 | return ENXIO; |
3825 | } | |
3826 | } | |
3827 | phba->hbq_count = hbq_count; | |
3828 | ||
ed957684 JS |
3829 | mempool_free(pmb, phba->mbox_mem_pool); |
3830 | ||
92d7f7b0 | 3831 | /* Initially populate or replenish the HBQs */ |
d7c255b2 JS |
3832 | for (hbqno = 0; hbqno < hbq_count; ++hbqno) |
3833 | lpfc_sli_hbqbuf_init_hbqs(phba, hbqno); | |
ed957684 JS |
3834 | return 0; |
3835 | } | |
3836 | ||
4f774513 JS |
3837 | /** |
3838 | * lpfc_sli4_rb_setup - Initialize and post RBs to HBA | |
3839 | * @phba: Pointer to HBA context object. | |
3840 | * | |
3841 | * This function is called during the SLI initialization to configure | |
3842 | * all the HBQs and post buffers to the HBQ. The caller is not | |
3843 | * required to hold any locks. This function will return zero if successful | |
3844 | * else it will return negative error code. | |
3845 | **/ | |
3846 | static int | |
3847 | lpfc_sli4_rb_setup(struct lpfc_hba *phba) | |
3848 | { | |
3849 | phba->hbq_in_use = 1; | |
3850 | phba->hbqs[0].entry_count = lpfc_hbq_defs[0]->entry_count; | |
3851 | phba->hbq_count = 1; | |
3852 | /* Initially populate or replenish the HBQs */ | |
3853 | lpfc_sli_hbqbuf_init_hbqs(phba, 0); | |
3854 | return 0; | |
3855 | } | |
3856 | ||
e59058c4 | 3857 | /** |
3621a710 | 3858 | * lpfc_sli_config_port - Issue config port mailbox command |
e59058c4 JS |
3859 | * @phba: Pointer to HBA context object. |
3860 | * @sli_mode: sli mode - 2/3 | |
3861 | * | |
3862 | * This function is called by the sli intialization code path | |
3863 | * to issue config_port mailbox command. This function restarts the | |
3864 | * HBA firmware and issues a config_port mailbox command to configure | |
3865 | * the SLI interface in the sli mode specified by sli_mode | |
3866 | * variable. The caller is not required to hold any locks. | |
3867 | * The function returns 0 if successful, else returns negative error | |
3868 | * code. | |
3869 | **/ | |
9399627f JS |
3870 | int |
3871 | lpfc_sli_config_port(struct lpfc_hba *phba, int sli_mode) | |
dea3101e | 3872 | { |
3873 | LPFC_MBOXQ_t *pmb; | |
3874 | uint32_t resetcount = 0, rc = 0, done = 0; | |
3875 | ||
3876 | pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
3877 | if (!pmb) { | |
2e0fef85 | 3878 | phba->link_state = LPFC_HBA_ERROR; |
dea3101e | 3879 | return -ENOMEM; |
3880 | } | |
3881 | ||
ed957684 | 3882 | phba->sli_rev = sli_mode; |
dea3101e | 3883 | while (resetcount < 2 && !done) { |
2e0fef85 | 3884 | spin_lock_irq(&phba->hbalock); |
1c067a42 | 3885 | phba->sli.sli_flag |= LPFC_SLI_MBOX_ACTIVE; |
2e0fef85 | 3886 | spin_unlock_irq(&phba->hbalock); |
92d7f7b0 | 3887 | phba->pport->port_state = LPFC_VPORT_UNKNOWN; |
41415862 | 3888 | lpfc_sli_brdrestart(phba); |
dea3101e | 3889 | rc = lpfc_sli_chipset_init(phba); |
3890 | if (rc) | |
3891 | break; | |
3892 | ||
2e0fef85 | 3893 | spin_lock_irq(&phba->hbalock); |
1c067a42 | 3894 | phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; |
2e0fef85 | 3895 | spin_unlock_irq(&phba->hbalock); |
dea3101e | 3896 | resetcount++; |
3897 | ||
ed957684 JS |
3898 | /* Call pre CONFIG_PORT mailbox command initialization. A |
3899 | * value of 0 means the call was successful. Any other | |
3900 | * nonzero value is a failure, but if ERESTART is returned, | |
3901 | * the driver may reset the HBA and try again. | |
3902 | */ | |
dea3101e | 3903 | rc = lpfc_config_port_prep(phba); |
3904 | if (rc == -ERESTART) { | |
ed957684 | 3905 | phba->link_state = LPFC_LINK_UNKNOWN; |
dea3101e | 3906 | continue; |
34b02dcd | 3907 | } else if (rc) |
dea3101e | 3908 | break; |
2e0fef85 | 3909 | phba->link_state = LPFC_INIT_MBX_CMDS; |
dea3101e | 3910 | lpfc_config_port(phba, pmb); |
3911 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); | |
34b02dcd JS |
3912 | phba->sli3_options &= ~(LPFC_SLI3_NPIV_ENABLED | |
3913 | LPFC_SLI3_HBQ_ENABLED | | |
3914 | LPFC_SLI3_CRP_ENABLED | | |
e2a0a9d6 JS |
3915 | LPFC_SLI3_INB_ENABLED | |
3916 | LPFC_SLI3_BG_ENABLED); | |
ed957684 | 3917 | if (rc != MBX_SUCCESS) { |
dea3101e | 3918 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
e8b62011 | 3919 | "0442 Adapter failed to init, mbxCmd x%x " |
92d7f7b0 | 3920 | "CONFIG_PORT, mbxStatus x%x Data: x%x\n", |
04c68496 | 3921 | pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus, 0); |
2e0fef85 | 3922 | spin_lock_irq(&phba->hbalock); |
04c68496 | 3923 | phba->sli.sli_flag &= ~LPFC_SLI_ACTIVE; |
2e0fef85 JS |
3924 | spin_unlock_irq(&phba->hbalock); |
3925 | rc = -ENXIO; | |
04c68496 JS |
3926 | } else { |
3927 | /* Allow asynchronous mailbox command to go through */ | |
3928 | spin_lock_irq(&phba->hbalock); | |
3929 | phba->sli.sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK; | |
3930 | spin_unlock_irq(&phba->hbalock); | |
ed957684 | 3931 | done = 1; |
04c68496 | 3932 | } |
dea3101e | 3933 | } |
ed957684 JS |
3934 | if (!done) { |
3935 | rc = -EINVAL; | |
3936 | goto do_prep_failed; | |
3937 | } | |
04c68496 JS |
3938 | if (pmb->u.mb.un.varCfgPort.sli_mode == 3) { |
3939 | if (!pmb->u.mb.un.varCfgPort.cMA) { | |
34b02dcd JS |
3940 | rc = -ENXIO; |
3941 | goto do_prep_failed; | |
3942 | } | |
04c68496 | 3943 | if (phba->max_vpi && pmb->u.mb.un.varCfgPort.gmv) { |
34b02dcd | 3944 | phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED; |
04c68496 JS |
3945 | phba->max_vpi = pmb->u.mb.un.varCfgPort.max_vpi; |
3946 | phba->max_vports = (phba->max_vpi > phba->max_vports) ? | |
3947 | phba->max_vpi : phba->max_vports; | |
3948 | ||
34b02dcd JS |
3949 | } else |
3950 | phba->max_vpi = 0; | |
04c68496 JS |
3951 | if (pmb->u.mb.un.varCfgPort.gdss) |
3952 | phba->sli3_options |= LPFC_SLI3_DSS_ENABLED; | |
3953 | if (pmb->u.mb.un.varCfgPort.gerbm) | |
34b02dcd | 3954 | phba->sli3_options |= LPFC_SLI3_HBQ_ENABLED; |
04c68496 | 3955 | if (pmb->u.mb.un.varCfgPort.gcrp) |
34b02dcd | 3956 | phba->sli3_options |= LPFC_SLI3_CRP_ENABLED; |
04c68496 | 3957 | if (pmb->u.mb.un.varCfgPort.ginb) { |
34b02dcd | 3958 | phba->sli3_options |= LPFC_SLI3_INB_ENABLED; |
8f34f4ce | 3959 | phba->hbq_get = phba->mbox->us.s3_inb_pgp.hbq_get; |
34b02dcd JS |
3960 | phba->port_gp = phba->mbox->us.s3_inb_pgp.port; |
3961 | phba->inb_ha_copy = &phba->mbox->us.s3_inb_pgp.ha_copy; | |
3962 | phba->inb_counter = &phba->mbox->us.s3_inb_pgp.counter; | |
3963 | phba->inb_last_counter = | |
3964 | phba->mbox->us.s3_inb_pgp.counter; | |
3965 | } else { | |
8f34f4ce | 3966 | phba->hbq_get = phba->mbox->us.s3_pgp.hbq_get; |
34b02dcd JS |
3967 | phba->port_gp = phba->mbox->us.s3_pgp.port; |
3968 | phba->inb_ha_copy = NULL; | |
3969 | phba->inb_counter = NULL; | |
3970 | } | |
e2a0a9d6 JS |
3971 | |
3972 | if (phba->cfg_enable_bg) { | |
04c68496 | 3973 | if (pmb->u.mb.un.varCfgPort.gbg) |
e2a0a9d6 JS |
3974 | phba->sli3_options |= LPFC_SLI3_BG_ENABLED; |
3975 | else | |
3976 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
3977 | "0443 Adapter did not grant " | |
3978 | "BlockGuard\n"); | |
3979 | } | |
34b02dcd | 3980 | } else { |
8f34f4ce | 3981 | phba->hbq_get = NULL; |
34b02dcd JS |
3982 | phba->port_gp = phba->mbox->us.s2.port; |
3983 | phba->inb_ha_copy = NULL; | |
3984 | phba->inb_counter = NULL; | |
d7c255b2 | 3985 | phba->max_vpi = 0; |
ed957684 | 3986 | } |
92d7f7b0 | 3987 | do_prep_failed: |
ed957684 JS |
3988 | mempool_free(pmb, phba->mbox_mem_pool); |
3989 | return rc; | |
3990 | } | |
3991 | ||
e59058c4 JS |
3992 | |
3993 | /** | |
3621a710 | 3994 | * lpfc_sli_hba_setup - SLI intialization function |
e59058c4 JS |
3995 | * @phba: Pointer to HBA context object. |
3996 | * | |
3997 | * This function is the main SLI intialization function. This function | |
3998 | * is called by the HBA intialization code, HBA reset code and HBA | |
3999 | * error attention handler code. Caller is not required to hold any | |
4000 | * locks. This function issues config_port mailbox command to configure | |
4001 | * the SLI, setup iocb rings and HBQ rings. In the end the function | |
4002 | * calls the config_port_post function to issue init_link mailbox | |
4003 | * command and to start the discovery. The function will return zero | |
4004 | * if successful, else it will return negative error code. | |
4005 | **/ | |
ed957684 JS |
4006 | int |
4007 | lpfc_sli_hba_setup(struct lpfc_hba *phba) | |
4008 | { | |
4009 | uint32_t rc; | |
92d7f7b0 | 4010 | int mode = 3; |
ed957684 JS |
4011 | |
4012 | switch (lpfc_sli_mode) { | |
4013 | case 2: | |
78b2d852 | 4014 | if (phba->cfg_enable_npiv) { |
92d7f7b0 | 4015 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT, |
e8b62011 | 4016 | "1824 NPIV enabled: Override lpfc_sli_mode " |
92d7f7b0 | 4017 | "parameter (%d) to auto (0).\n", |
e8b62011 | 4018 | lpfc_sli_mode); |
92d7f7b0 JS |
4019 | break; |
4020 | } | |
ed957684 JS |
4021 | mode = 2; |
4022 | break; | |
4023 | case 0: | |
4024 | case 3: | |
4025 | break; | |
4026 | default: | |
92d7f7b0 | 4027 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT, |
e8b62011 JS |
4028 | "1819 Unrecognized lpfc_sli_mode " |
4029 | "parameter: %d.\n", lpfc_sli_mode); | |
ed957684 JS |
4030 | |
4031 | break; | |
4032 | } | |
4033 | ||
9399627f JS |
4034 | rc = lpfc_sli_config_port(phba, mode); |
4035 | ||
ed957684 | 4036 | if (rc && lpfc_sli_mode == 3) |
92d7f7b0 | 4037 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT, |
e8b62011 JS |
4038 | "1820 Unable to select SLI-3. " |
4039 | "Not supported by adapter.\n"); | |
ed957684 | 4040 | if (rc && mode != 2) |
9399627f | 4041 | rc = lpfc_sli_config_port(phba, 2); |
ed957684 | 4042 | if (rc) |
dea3101e | 4043 | goto lpfc_sli_hba_setup_error; |
4044 | ||
ed957684 JS |
4045 | if (phba->sli_rev == 3) { |
4046 | phba->iocb_cmd_size = SLI3_IOCB_CMD_SIZE; | |
4047 | phba->iocb_rsp_size = SLI3_IOCB_RSP_SIZE; | |
ed957684 JS |
4048 | } else { |
4049 | phba->iocb_cmd_size = SLI2_IOCB_CMD_SIZE; | |
4050 | phba->iocb_rsp_size = SLI2_IOCB_RSP_SIZE; | |
92d7f7b0 | 4051 | phba->sli3_options = 0; |
ed957684 JS |
4052 | } |
4053 | ||
4054 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, | |
e8b62011 JS |
4055 | "0444 Firmware in SLI %x mode. Max_vpi %d\n", |
4056 | phba->sli_rev, phba->max_vpi); | |
ed957684 | 4057 | rc = lpfc_sli_ring_map(phba); |
dea3101e | 4058 | |
4059 | if (rc) | |
4060 | goto lpfc_sli_hba_setup_error; | |
4061 | ||
9399627f | 4062 | /* Init HBQs */ |
ed957684 JS |
4063 | if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) { |
4064 | rc = lpfc_sli_hbq_setup(phba); | |
4065 | if (rc) | |
4066 | goto lpfc_sli_hba_setup_error; | |
4067 | } | |
04c68496 | 4068 | spin_lock_irq(&phba->hbalock); |
dea3101e | 4069 | phba->sli.sli_flag |= LPFC_PROCESS_LA; |
04c68496 | 4070 | spin_unlock_irq(&phba->hbalock); |
dea3101e | 4071 | |
4072 | rc = lpfc_config_port_post(phba); | |
4073 | if (rc) | |
4074 | goto lpfc_sli_hba_setup_error; | |
4075 | ||
ed957684 JS |
4076 | return rc; |
4077 | ||
92d7f7b0 | 4078 | lpfc_sli_hba_setup_error: |
2e0fef85 | 4079 | phba->link_state = LPFC_HBA_ERROR; |
ed957684 | 4080 | lpfc_printf_log(phba, KERN_INFO, LOG_INIT, |
e8b62011 | 4081 | "0445 Firmware initialization failed\n"); |
dea3101e | 4082 | return rc; |
4083 | } | |
4084 | ||
e59058c4 | 4085 | /** |
da0436e9 JS |
4086 | * lpfc_sli4_read_fcoe_params - Read fcoe params from conf region |
4087 | * @phba: Pointer to HBA context object. | |
4088 | * @mboxq: mailbox pointer. | |
4089 | * This function issue a dump mailbox command to read config region | |
4090 | * 23 and parse the records in the region and populate driver | |
4091 | * data structure. | |
e59058c4 | 4092 | **/ |
da0436e9 JS |
4093 | static int |
4094 | lpfc_sli4_read_fcoe_params(struct lpfc_hba *phba, | |
4095 | LPFC_MBOXQ_t *mboxq) | |
dea3101e | 4096 | { |
da0436e9 JS |
4097 | struct lpfc_dmabuf *mp; |
4098 | struct lpfc_mqe *mqe; | |
4099 | uint32_t data_length; | |
4100 | int rc; | |
dea3101e | 4101 | |
da0436e9 JS |
4102 | /* Program the default value of vlan_id and fc_map */ |
4103 | phba->valid_vlan = 0; | |
4104 | phba->fc_map[0] = LPFC_FCOE_FCF_MAP0; | |
4105 | phba->fc_map[1] = LPFC_FCOE_FCF_MAP1; | |
4106 | phba->fc_map[2] = LPFC_FCOE_FCF_MAP2; | |
2e0fef85 | 4107 | |
da0436e9 JS |
4108 | mqe = &mboxq->u.mqe; |
4109 | if (lpfc_dump_fcoe_param(phba, mboxq)) | |
4110 | return -ENOMEM; | |
4111 | ||
4112 | mp = (struct lpfc_dmabuf *) mboxq->context1; | |
4113 | rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); | |
4114 | ||
4115 | lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI, | |
4116 | "(%d):2571 Mailbox cmd x%x Status x%x " | |
4117 | "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x " | |
4118 | "x%x x%x x%x x%x x%x x%x x%x x%x x%x " | |
4119 | "CQ: x%x x%x x%x x%x\n", | |
4120 | mboxq->vport ? mboxq->vport->vpi : 0, | |
4121 | bf_get(lpfc_mqe_command, mqe), | |
4122 | bf_get(lpfc_mqe_status, mqe), | |
4123 | mqe->un.mb_words[0], mqe->un.mb_words[1], | |
4124 | mqe->un.mb_words[2], mqe->un.mb_words[3], | |
4125 | mqe->un.mb_words[4], mqe->un.mb_words[5], | |
4126 | mqe->un.mb_words[6], mqe->un.mb_words[7], | |
4127 | mqe->un.mb_words[8], mqe->un.mb_words[9], | |
4128 | mqe->un.mb_words[10], mqe->un.mb_words[11], | |
4129 | mqe->un.mb_words[12], mqe->un.mb_words[13], | |
4130 | mqe->un.mb_words[14], mqe->un.mb_words[15], | |
4131 | mqe->un.mb_words[16], mqe->un.mb_words[50], | |
4132 | mboxq->mcqe.word0, | |
4133 | mboxq->mcqe.mcqe_tag0, mboxq->mcqe.mcqe_tag1, | |
4134 | mboxq->mcqe.trailer); | |
4135 | ||
4136 | if (rc) { | |
4137 | lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
4138 | kfree(mp); | |
4139 | return -EIO; | |
4140 | } | |
4141 | data_length = mqe->un.mb_words[5]; | |
4142 | if (data_length > DMP_FCOEPARAM_RGN_SIZE) | |
4143 | return -EIO; | |
dea3101e | 4144 | |
da0436e9 JS |
4145 | lpfc_parse_fcoe_conf(phba, mp->virt, data_length); |
4146 | lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
4147 | kfree(mp); | |
4148 | return 0; | |
4149 | } | |
e59058c4 JS |
4150 | |
4151 | /** | |
da0436e9 JS |
4152 | * lpfc_sli4_read_rev - Issue READ_REV and collect vpd data |
4153 | * @phba: pointer to lpfc hba data structure. | |
4154 | * @mboxq: pointer to the LPFC_MBOXQ_t structure. | |
4155 | * @vpd: pointer to the memory to hold resulting port vpd data. | |
4156 | * @vpd_size: On input, the number of bytes allocated to @vpd. | |
4157 | * On output, the number of data bytes in @vpd. | |
e59058c4 | 4158 | * |
da0436e9 JS |
4159 | * This routine executes a READ_REV SLI4 mailbox command. In |
4160 | * addition, this routine gets the port vpd data. | |
4161 | * | |
4162 | * Return codes | |
4163 | * 0 - sucessful | |
4164 | * ENOMEM - could not allocated memory. | |
e59058c4 | 4165 | **/ |
da0436e9 JS |
4166 | static int |
4167 | lpfc_sli4_read_rev(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq, | |
4168 | uint8_t *vpd, uint32_t *vpd_size) | |
dea3101e | 4169 | { |
da0436e9 JS |
4170 | int rc = 0; |
4171 | uint32_t dma_size; | |
4172 | struct lpfc_dmabuf *dmabuf; | |
4173 | struct lpfc_mqe *mqe; | |
dea3101e | 4174 | |
da0436e9 JS |
4175 | dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); |
4176 | if (!dmabuf) | |
4177 | return -ENOMEM; | |
4178 | ||
4179 | /* | |
4180 | * Get a DMA buffer for the vpd data resulting from the READ_REV | |
4181 | * mailbox command. | |
a257bf90 | 4182 | */ |
da0436e9 JS |
4183 | dma_size = *vpd_size; |
4184 | dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, | |
4185 | dma_size, | |
4186 | &dmabuf->phys, | |
4187 | GFP_KERNEL); | |
4188 | if (!dmabuf->virt) { | |
4189 | kfree(dmabuf); | |
4190 | return -ENOMEM; | |
a257bf90 | 4191 | } |
da0436e9 | 4192 | memset(dmabuf->virt, 0, dma_size); |
a257bf90 | 4193 | |
da0436e9 JS |
4194 | /* |
4195 | * The SLI4 implementation of READ_REV conflicts at word1, | |
4196 | * bits 31:16 and SLI4 adds vpd functionality not present | |
4197 | * in SLI3. This code corrects the conflicts. | |
1dcb58e5 | 4198 | */ |
da0436e9 JS |
4199 | lpfc_read_rev(phba, mboxq); |
4200 | mqe = &mboxq->u.mqe; | |
4201 | mqe->un.read_rev.vpd_paddr_high = putPaddrHigh(dmabuf->phys); | |
4202 | mqe->un.read_rev.vpd_paddr_low = putPaddrLow(dmabuf->phys); | |
4203 | mqe->un.read_rev.word1 &= 0x0000FFFF; | |
4204 | bf_set(lpfc_mbx_rd_rev_vpd, &mqe->un.read_rev, 1); | |
4205 | bf_set(lpfc_mbx_rd_rev_avail_len, &mqe->un.read_rev, dma_size); | |
4206 | ||
4207 | rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); | |
4208 | if (rc) { | |
4209 | dma_free_coherent(&phba->pcidev->dev, dma_size, | |
4210 | dmabuf->virt, dmabuf->phys); | |
4211 | return -EIO; | |
4212 | } | |
1dcb58e5 | 4213 | |
da0436e9 JS |
4214 | /* |
4215 | * The available vpd length cannot be bigger than the | |
4216 | * DMA buffer passed to the port. Catch the less than | |
4217 | * case and update the caller's size. | |
4218 | */ | |
4219 | if (mqe->un.read_rev.avail_vpd_len < *vpd_size) | |
4220 | *vpd_size = mqe->un.read_rev.avail_vpd_len; | |
3772a991 | 4221 | |
da0436e9 JS |
4222 | lpfc_sli_pcimem_bcopy(dmabuf->virt, vpd, *vpd_size); |
4223 | dma_free_coherent(&phba->pcidev->dev, dma_size, | |
4224 | dmabuf->virt, dmabuf->phys); | |
4225 | kfree(dmabuf); | |
4226 | return 0; | |
dea3101e | 4227 | } |
4228 | ||
e59058c4 | 4229 | /** |
da0436e9 JS |
4230 | * lpfc_sli4_arm_cqeq_intr - Arm sli-4 device completion and event queues |
4231 | * @phba: pointer to lpfc hba data structure. | |
e59058c4 | 4232 | * |
da0436e9 JS |
4233 | * This routine is called to explicitly arm the SLI4 device's completion and |
4234 | * event queues | |
4235 | **/ | |
4236 | static void | |
4237 | lpfc_sli4_arm_cqeq_intr(struct lpfc_hba *phba) | |
4238 | { | |
4239 | uint8_t fcp_eqidx; | |
4240 | ||
4241 | lpfc_sli4_cq_release(phba->sli4_hba.mbx_cq, LPFC_QUEUE_REARM); | |
4242 | lpfc_sli4_cq_release(phba->sli4_hba.els_cq, LPFC_QUEUE_REARM); | |
4243 | lpfc_sli4_cq_release(phba->sli4_hba.rxq_cq, LPFC_QUEUE_REARM); | |
4244 | for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) | |
4245 | lpfc_sli4_cq_release(phba->sli4_hba.fcp_cq[fcp_eqidx], | |
4246 | LPFC_QUEUE_REARM); | |
4247 | lpfc_sli4_eq_release(phba->sli4_hba.sp_eq, LPFC_QUEUE_REARM); | |
4248 | for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) | |
4249 | lpfc_sli4_eq_release(phba->sli4_hba.fp_eq[fcp_eqidx], | |
4250 | LPFC_QUEUE_REARM); | |
4251 | } | |
4252 | ||
4253 | /** | |
4254 | * lpfc_sli4_hba_setup - SLI4 device intialization PCI function | |
4255 | * @phba: Pointer to HBA context object. | |
4256 | * | |
4257 | * This function is the main SLI4 device intialization PCI function. This | |
4258 | * function is called by the HBA intialization code, HBA reset code and | |
4259 | * HBA error attention handler code. Caller is not required to hold any | |
4260 | * locks. | |
4261 | **/ | |
4262 | int | |
4263 | lpfc_sli4_hba_setup(struct lpfc_hba *phba) | |
4264 | { | |
4265 | int rc; | |
4266 | LPFC_MBOXQ_t *mboxq; | |
4267 | struct lpfc_mqe *mqe; | |
4268 | uint8_t *vpd; | |
4269 | uint32_t vpd_size; | |
4270 | uint32_t ftr_rsp = 0; | |
4271 | struct Scsi_Host *shost = lpfc_shost_from_vport(phba->pport); | |
4272 | struct lpfc_vport *vport = phba->pport; | |
4273 | struct lpfc_dmabuf *mp; | |
4274 | ||
4275 | /* Perform a PCI function reset to start from clean */ | |
4276 | rc = lpfc_pci_function_reset(phba); | |
4277 | if (unlikely(rc)) | |
4278 | return -ENODEV; | |
4279 | ||
4280 | /* Check the HBA Host Status Register for readyness */ | |
4281 | rc = lpfc_sli4_post_status_check(phba); | |
4282 | if (unlikely(rc)) | |
4283 | return -ENODEV; | |
4284 | else { | |
4285 | spin_lock_irq(&phba->hbalock); | |
4286 | phba->sli.sli_flag |= LPFC_SLI_ACTIVE; | |
4287 | spin_unlock_irq(&phba->hbalock); | |
4288 | } | |
4289 | ||
4290 | /* | |
4291 | * Allocate a single mailbox container for initializing the | |
4292 | * port. | |
4293 | */ | |
4294 | mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
4295 | if (!mboxq) | |
4296 | return -ENOMEM; | |
4297 | ||
4298 | /* | |
4299 | * Continue initialization with default values even if driver failed | |
4300 | * to read FCoE param config regions | |
4301 | */ | |
4302 | if (lpfc_sli4_read_fcoe_params(phba, mboxq)) | |
4303 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT, | |
4304 | "2570 Failed to read FCoE parameters \n"); | |
4305 | ||
4306 | /* Issue READ_REV to collect vpd and FW information. */ | |
4307 | vpd_size = PAGE_SIZE; | |
4308 | vpd = kzalloc(vpd_size, GFP_KERNEL); | |
4309 | if (!vpd) { | |
4310 | rc = -ENOMEM; | |
4311 | goto out_free_mbox; | |
4312 | } | |
4313 | ||
4314 | rc = lpfc_sli4_read_rev(phba, mboxq, vpd, &vpd_size); | |
4315 | if (unlikely(rc)) | |
4316 | goto out_free_vpd; | |
4317 | ||
4318 | mqe = &mboxq->u.mqe; | |
f1126688 JS |
4319 | phba->sli_rev = bf_get(lpfc_mbx_rd_rev_sli_lvl, &mqe->un.read_rev); |
4320 | if (bf_get(lpfc_mbx_rd_rev_fcoe, &mqe->un.read_rev)) | |
4321 | phba->hba_flag |= HBA_FCOE_SUPPORT; | |
4322 | if (phba->sli_rev != LPFC_SLI_REV4 || | |
4323 | !(phba->hba_flag & HBA_FCOE_SUPPORT)) { | |
da0436e9 JS |
4324 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, |
4325 | "0376 READ_REV Error. SLI Level %d " | |
4326 | "FCoE enabled %d\n", | |
f1126688 | 4327 | phba->sli_rev, phba->hba_flag & HBA_FCOE_SUPPORT); |
da0436e9 JS |
4328 | rc = -EIO; |
4329 | goto out_free_vpd; | |
4330 | } | |
da0436e9 JS |
4331 | /* |
4332 | * Evaluate the read rev and vpd data. Populate the driver | |
4333 | * state with the results. If this routine fails, the failure | |
4334 | * is not fatal as the driver will use generic values. | |
4335 | */ | |
4336 | rc = lpfc_parse_vpd(phba, vpd, vpd_size); | |
4337 | if (unlikely(!rc)) { | |
4338 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, | |
4339 | "0377 Error %d parsing vpd. " | |
4340 | "Using defaults.\n", rc); | |
4341 | rc = 0; | |
4342 | } | |
4343 | ||
f1126688 JS |
4344 | /* Save information as VPD data */ |
4345 | phba->vpd.rev.biuRev = mqe->un.read_rev.first_hw_rev; | |
4346 | phba->vpd.rev.smRev = mqe->un.read_rev.second_hw_rev; | |
4347 | phba->vpd.rev.endecRev = mqe->un.read_rev.third_hw_rev; | |
4348 | phba->vpd.rev.fcphHigh = bf_get(lpfc_mbx_rd_rev_fcph_high, | |
4349 | &mqe->un.read_rev); | |
4350 | phba->vpd.rev.fcphLow = bf_get(lpfc_mbx_rd_rev_fcph_low, | |
4351 | &mqe->un.read_rev); | |
4352 | phba->vpd.rev.feaLevelHigh = bf_get(lpfc_mbx_rd_rev_ftr_lvl_high, | |
4353 | &mqe->un.read_rev); | |
4354 | phba->vpd.rev.feaLevelLow = bf_get(lpfc_mbx_rd_rev_ftr_lvl_low, | |
4355 | &mqe->un.read_rev); | |
4356 | phba->vpd.rev.sli1FwRev = mqe->un.read_rev.fw_id_rev; | |
4357 | memcpy(phba->vpd.rev.sli1FwName, mqe->un.read_rev.fw_name, 16); | |
4358 | phba->vpd.rev.sli2FwRev = mqe->un.read_rev.ulp_fw_id_rev; | |
4359 | memcpy(phba->vpd.rev.sli2FwName, mqe->un.read_rev.ulp_fw_name, 16); | |
4360 | phba->vpd.rev.opFwRev = mqe->un.read_rev.fw_id_rev; | |
4361 | memcpy(phba->vpd.rev.opFwName, mqe->un.read_rev.fw_name, 16); | |
4362 | lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI, | |
4363 | "(%d):0380 READ_REV Status x%x " | |
4364 | "fw_rev:%s fcphHi:%x fcphLo:%x flHi:%x flLo:%x\n", | |
4365 | mboxq->vport ? mboxq->vport->vpi : 0, | |
4366 | bf_get(lpfc_mqe_status, mqe), | |
4367 | phba->vpd.rev.opFwName, | |
4368 | phba->vpd.rev.fcphHigh, phba->vpd.rev.fcphLow, | |
4369 | phba->vpd.rev.feaLevelHigh, phba->vpd.rev.feaLevelLow); | |
da0436e9 JS |
4370 | |
4371 | /* | |
4372 | * Discover the port's supported feature set and match it against the | |
4373 | * hosts requests. | |
4374 | */ | |
4375 | lpfc_request_features(phba, mboxq); | |
4376 | rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); | |
4377 | if (unlikely(rc)) { | |
4378 | rc = -EIO; | |
4379 | goto out_free_vpd; | |
4380 | } | |
4381 | ||
4382 | /* | |
4383 | * The port must support FCP initiator mode as this is the | |
4384 | * only mode running in the host. | |
4385 | */ | |
4386 | if (!(bf_get(lpfc_mbx_rq_ftr_rsp_fcpi, &mqe->un.req_ftrs))) { | |
4387 | lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI, | |
4388 | "0378 No support for fcpi mode.\n"); | |
4389 | ftr_rsp++; | |
4390 | } | |
4391 | ||
4392 | /* | |
4393 | * If the port cannot support the host's requested features | |
4394 | * then turn off the global config parameters to disable the | |
4395 | * feature in the driver. This is not a fatal error. | |
4396 | */ | |
4397 | if ((phba->cfg_enable_bg) && | |
4398 | !(bf_get(lpfc_mbx_rq_ftr_rsp_dif, &mqe->un.req_ftrs))) | |
4399 | ftr_rsp++; | |
4400 | ||
4401 | if (phba->max_vpi && phba->cfg_enable_npiv && | |
4402 | !(bf_get(lpfc_mbx_rq_ftr_rsp_npiv, &mqe->un.req_ftrs))) | |
4403 | ftr_rsp++; | |
4404 | ||
4405 | if (ftr_rsp) { | |
4406 | lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI, | |
4407 | "0379 Feature Mismatch Data: x%08x %08x " | |
4408 | "x%x x%x x%x\n", mqe->un.req_ftrs.word2, | |
4409 | mqe->un.req_ftrs.word3, phba->cfg_enable_bg, | |
4410 | phba->cfg_enable_npiv, phba->max_vpi); | |
4411 | if (!(bf_get(lpfc_mbx_rq_ftr_rsp_dif, &mqe->un.req_ftrs))) | |
4412 | phba->cfg_enable_bg = 0; | |
4413 | if (!(bf_get(lpfc_mbx_rq_ftr_rsp_npiv, &mqe->un.req_ftrs))) | |
4414 | phba->cfg_enable_npiv = 0; | |
4415 | } | |
4416 | ||
4417 | /* These SLI3 features are assumed in SLI4 */ | |
4418 | spin_lock_irq(&phba->hbalock); | |
4419 | phba->sli3_options |= (LPFC_SLI3_NPIV_ENABLED | LPFC_SLI3_HBQ_ENABLED); | |
4420 | spin_unlock_irq(&phba->hbalock); | |
4421 | ||
4422 | /* Read the port's service parameters. */ | |
4423 | lpfc_read_sparam(phba, mboxq, vport->vpi); | |
4424 | mboxq->vport = vport; | |
4425 | rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); | |
4426 | mp = (struct lpfc_dmabuf *) mboxq->context1; | |
4427 | if (rc == MBX_SUCCESS) { | |
4428 | memcpy(&vport->fc_sparam, mp->virt, sizeof(struct serv_parm)); | |
4429 | rc = 0; | |
4430 | } | |
4431 | ||
4432 | /* | |
4433 | * This memory was allocated by the lpfc_read_sparam routine. Release | |
4434 | * it to the mbuf pool. | |
4435 | */ | |
4436 | lpfc_mbuf_free(phba, mp->virt, mp->phys); | |
4437 | kfree(mp); | |
4438 | mboxq->context1 = NULL; | |
4439 | if (unlikely(rc)) { | |
4440 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, | |
4441 | "0382 READ_SPARAM command failed " | |
4442 | "status %d, mbxStatus x%x\n", | |
4443 | rc, bf_get(lpfc_mqe_status, mqe)); | |
4444 | phba->link_state = LPFC_HBA_ERROR; | |
4445 | rc = -EIO; | |
4446 | goto out_free_vpd; | |
4447 | } | |
4448 | ||
4449 | if (phba->cfg_soft_wwnn) | |
4450 | u64_to_wwn(phba->cfg_soft_wwnn, | |
4451 | vport->fc_sparam.nodeName.u.wwn); | |
4452 | if (phba->cfg_soft_wwpn) | |
4453 | u64_to_wwn(phba->cfg_soft_wwpn, | |
4454 | vport->fc_sparam.portName.u.wwn); | |
4455 | memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName, | |
4456 | sizeof(struct lpfc_name)); | |
4457 | memcpy(&vport->fc_portname, &vport->fc_sparam.portName, | |
4458 | sizeof(struct lpfc_name)); | |
4459 | ||
4460 | /* Update the fc_host data structures with new wwn. */ | |
4461 | fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn); | |
4462 | fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); | |
4463 | ||
4464 | /* Register SGL pool to the device using non-embedded mailbox command */ | |
4465 | rc = lpfc_sli4_post_sgl_list(phba); | |
4466 | if (unlikely(rc)) { | |
4467 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, | |
4468 | "0582 Error %d during sgl post operation", rc); | |
4469 | rc = -ENODEV; | |
4470 | goto out_free_vpd; | |
4471 | } | |
4472 | ||
4473 | /* Register SCSI SGL pool to the device */ | |
4474 | rc = lpfc_sli4_repost_scsi_sgl_list(phba); | |
4475 | if (unlikely(rc)) { | |
4476 | lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI, | |
4477 | "0383 Error %d during scsi sgl post opeation", | |
4478 | rc); | |
4479 | /* Some Scsi buffers were moved to the abort scsi list */ | |
4480 | /* A pci function reset will repost them */ | |
4481 | rc = -ENODEV; | |
4482 | goto out_free_vpd; | |
4483 | } | |
4484 | ||
4485 | /* Post the rpi header region to the device. */ | |
4486 | rc = lpfc_sli4_post_all_rpi_hdrs(phba); | |
4487 | if (unlikely(rc)) { | |
4488 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, | |
4489 | "0393 Error %d during rpi post operation\n", | |
4490 | rc); | |
4491 | rc = -ENODEV; | |
4492 | goto out_free_vpd; | |
4493 | } | |
4494 | /* Temporary initialization of lpfc_fip_flag to non-fip */ | |
4495 | bf_set(lpfc_fip_flag, &phba->sli4_hba.sli4_flags, 0); | |
4496 | ||
4497 | /* Set up all the queues to the device */ | |
4498 | rc = lpfc_sli4_queue_setup(phba); | |
4499 | if (unlikely(rc)) { | |
4500 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, | |
4501 | "0381 Error %d during queue setup.\n ", rc); | |
4502 | goto out_stop_timers; | |
4503 | } | |
4504 | ||
4505 | /* Arm the CQs and then EQs on device */ | |
4506 | lpfc_sli4_arm_cqeq_intr(phba); | |
4507 | ||
4508 | /* Indicate device interrupt mode */ | |
4509 | phba->sli4_hba.intr_enable = 1; | |
4510 | ||
4511 | /* Allow asynchronous mailbox command to go through */ | |
4512 | spin_lock_irq(&phba->hbalock); | |
4513 | phba->sli.sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK; | |
4514 | spin_unlock_irq(&phba->hbalock); | |
4515 | ||
4516 | /* Post receive buffers to the device */ | |
4517 | lpfc_sli4_rb_setup(phba); | |
4518 | ||
4519 | /* Start the ELS watchdog timer */ | |
4520 | /* | |
4521 | * The driver for SLI4 is not yet ready to process timeouts | |
4522 | * or interrupts. Once it is, the comment bars can be removed. | |
4523 | */ | |
4524 | /* mod_timer(&vport->els_tmofunc, | |
4525 | * jiffies + HZ * (phba->fc_ratov*2)); */ | |
4526 | ||
4527 | /* Start heart beat timer */ | |
4528 | mod_timer(&phba->hb_tmofunc, | |
4529 | jiffies + HZ * LPFC_HB_MBOX_INTERVAL); | |
4530 | phba->hb_outstanding = 0; | |
4531 | phba->last_completion_time = jiffies; | |
4532 | ||
4533 | /* Start error attention (ERATT) polling timer */ | |
4534 | mod_timer(&phba->eratt_poll, jiffies + HZ * LPFC_ERATT_POLL_INTERVAL); | |
4535 | ||
4536 | /* | |
4537 | * The port is ready, set the host's link state to LINK_DOWN | |
4538 | * in preparation for link interrupts. | |
4539 | */ | |
4540 | lpfc_init_link(phba, mboxq, phba->cfg_topology, phba->cfg_link_speed); | |
4541 | mboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
4542 | lpfc_set_loopback_flag(phba); | |
4543 | /* Change driver state to LPFC_LINK_DOWN right before init link */ | |
4544 | spin_lock_irq(&phba->hbalock); | |
4545 | phba->link_state = LPFC_LINK_DOWN; | |
4546 | spin_unlock_irq(&phba->hbalock); | |
4547 | rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT); | |
4548 | if (unlikely(rc != MBX_NOT_FINISHED)) { | |
4549 | kfree(vpd); | |
4550 | return 0; | |
4551 | } else | |
4552 | rc = -EIO; | |
4553 | ||
4554 | /* Unset all the queues set up in this routine when error out */ | |
4555 | if (rc) | |
4556 | lpfc_sli4_queue_unset(phba); | |
4557 | ||
4558 | out_stop_timers: | |
4559 | if (rc) | |
4560 | lpfc_stop_hba_timers(phba); | |
4561 | out_free_vpd: | |
4562 | kfree(vpd); | |
4563 | out_free_mbox: | |
4564 | mempool_free(mboxq, phba->mbox_mem_pool); | |
4565 | return rc; | |
4566 | } | |
4567 | ||
4568 | /** | |
4569 | * lpfc_mbox_timeout - Timeout call back function for mbox timer | |
4570 | * @ptr: context object - pointer to hba structure. | |
4571 | * | |
4572 | * This is the callback function for mailbox timer. The mailbox | |
4573 | * timer is armed when a new mailbox command is issued and the timer | |
4574 | * is deleted when the mailbox complete. The function is called by | |
4575 | * the kernel timer code when a mailbox does not complete within | |
4576 | * expected time. This function wakes up the worker thread to | |
4577 | * process the mailbox timeout and returns. All the processing is | |
4578 | * done by the worker thread function lpfc_mbox_timeout_handler. | |
4579 | **/ | |
4580 | void | |
4581 | lpfc_mbox_timeout(unsigned long ptr) | |
4582 | { | |
4583 | struct lpfc_hba *phba = (struct lpfc_hba *) ptr; | |
4584 | unsigned long iflag; | |
4585 | uint32_t tmo_posted; | |
4586 | ||
4587 | spin_lock_irqsave(&phba->pport->work_port_lock, iflag); | |
4588 | tmo_posted = phba->pport->work_port_events & WORKER_MBOX_TMO; | |
4589 | if (!tmo_posted) | |
4590 | phba->pport->work_port_events |= WORKER_MBOX_TMO; | |
4591 | spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag); | |
4592 | ||
4593 | if (!tmo_posted) | |
4594 | lpfc_worker_wake_up(phba); | |
4595 | return; | |
4596 | } | |
4597 | ||
4598 | ||
4599 | /** | |
4600 | * lpfc_mbox_timeout_handler - Worker thread function to handle mailbox timeout | |
4601 | * @phba: Pointer to HBA context object. | |
4602 | * | |
4603 | * This function is called from worker thread when a mailbox command times out. | |
4604 | * The caller is not required to hold any locks. This function will reset the | |
4605 | * HBA and recover all the pending commands. | |
4606 | **/ | |
4607 | void | |
4608 | lpfc_mbox_timeout_handler(struct lpfc_hba *phba) | |
4609 | { | |
4610 | LPFC_MBOXQ_t *pmbox = phba->sli.mbox_active; | |
04c68496 | 4611 | MAILBOX_t *mb = &pmbox->u.mb; |
da0436e9 JS |
4612 | struct lpfc_sli *psli = &phba->sli; |
4613 | struct lpfc_sli_ring *pring; | |
4614 | ||
4615 | /* Check the pmbox pointer first. There is a race condition | |
4616 | * between the mbox timeout handler getting executed in the | |
4617 | * worklist and the mailbox actually completing. When this | |
4618 | * race condition occurs, the mbox_active will be NULL. | |
4619 | */ | |
4620 | spin_lock_irq(&phba->hbalock); | |
4621 | if (pmbox == NULL) { | |
4622 | lpfc_printf_log(phba, KERN_WARNING, | |
4623 | LOG_MBOX | LOG_SLI, | |
4624 | "0353 Active Mailbox cleared - mailbox timeout " | |
4625 | "exiting\n"); | |
4626 | spin_unlock_irq(&phba->hbalock); | |
4627 | return; | |
4628 | } | |
4629 | ||
4630 | /* Mbox cmd <mbxCommand> timeout */ | |
4631 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, | |
4632 | "0310 Mailbox command x%x timeout Data: x%x x%x x%p\n", | |
4633 | mb->mbxCommand, | |
4634 | phba->pport->port_state, | |
4635 | phba->sli.sli_flag, | |
4636 | phba->sli.mbox_active); | |
4637 | spin_unlock_irq(&phba->hbalock); | |
4638 | ||
4639 | /* Setting state unknown so lpfc_sli_abort_iocb_ring | |
4640 | * would get IOCB_ERROR from lpfc_sli_issue_iocb, allowing | |
4641 | * it to fail all oustanding SCSI IO. | |
4642 | */ | |
4643 | spin_lock_irq(&phba->pport->work_port_lock); | |
4644 | phba->pport->work_port_events &= ~WORKER_MBOX_TMO; | |
4645 | spin_unlock_irq(&phba->pport->work_port_lock); | |
4646 | spin_lock_irq(&phba->hbalock); | |
4647 | phba->link_state = LPFC_LINK_UNKNOWN; | |
f4b4c68f | 4648 | psli->sli_flag &= ~LPFC_SLI_ACTIVE; |
da0436e9 JS |
4649 | spin_unlock_irq(&phba->hbalock); |
4650 | ||
4651 | pring = &psli->ring[psli->fcp_ring]; | |
4652 | lpfc_sli_abort_iocb_ring(phba, pring); | |
4653 | ||
4654 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, | |
4655 | "0345 Resetting board due to mailbox timeout\n"); | |
4656 | ||
4657 | /* Reset the HBA device */ | |
4658 | lpfc_reset_hba(phba); | |
4659 | } | |
4660 | ||
4661 | /** | |
4662 | * lpfc_sli_issue_mbox_s3 - Issue an SLI3 mailbox command to firmware | |
4663 | * @phba: Pointer to HBA context object. | |
4664 | * @pmbox: Pointer to mailbox object. | |
4665 | * @flag: Flag indicating how the mailbox need to be processed. | |
4666 | * | |
4667 | * This function is called by discovery code and HBA management code | |
4668 | * to submit a mailbox command to firmware with SLI-3 interface spec. This | |
4669 | * function gets the hbalock to protect the data structures. | |
4670 | * The mailbox command can be submitted in polling mode, in which case | |
4671 | * this function will wait in a polling loop for the completion of the | |
4672 | * mailbox. | |
4673 | * If the mailbox is submitted in no_wait mode (not polling) the | |
4674 | * function will submit the command and returns immediately without waiting | |
4675 | * for the mailbox completion. The no_wait is supported only when HBA | |
4676 | * is in SLI2/SLI3 mode - interrupts are enabled. | |
4677 | * The SLI interface allows only one mailbox pending at a time. If the | |
4678 | * mailbox is issued in polling mode and there is already a mailbox | |
4679 | * pending, then the function will return an error. If the mailbox is issued | |
4680 | * in NO_WAIT mode and there is a mailbox pending already, the function | |
4681 | * will return MBX_BUSY after queuing the mailbox into mailbox queue. | |
4682 | * The sli layer owns the mailbox object until the completion of mailbox | |
4683 | * command if this function return MBX_BUSY or MBX_SUCCESS. For all other | |
4684 | * return codes the caller owns the mailbox command after the return of | |
4685 | * the function. | |
e59058c4 | 4686 | **/ |
3772a991 JS |
4687 | static int |
4688 | lpfc_sli_issue_mbox_s3(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox, | |
4689 | uint32_t flag) | |
dea3101e | 4690 | { |
dea3101e | 4691 | MAILBOX_t *mb; |
2e0fef85 | 4692 | struct lpfc_sli *psli = &phba->sli; |
dea3101e | 4693 | uint32_t status, evtctr; |
4694 | uint32_t ha_copy; | |
4695 | int i; | |
09372820 | 4696 | unsigned long timeout; |
dea3101e | 4697 | unsigned long drvr_flag = 0; |
34b02dcd | 4698 | uint32_t word0, ldata; |
dea3101e | 4699 | void __iomem *to_slim; |
58da1ffb JS |
4700 | int processing_queue = 0; |
4701 | ||
4702 | spin_lock_irqsave(&phba->hbalock, drvr_flag); | |
4703 | if (!pmbox) { | |
4704 | /* processing mbox queue from intr_handler */ | |
3772a991 JS |
4705 | if (unlikely(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) { |
4706 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); | |
4707 | return MBX_SUCCESS; | |
4708 | } | |
58da1ffb JS |
4709 | processing_queue = 1; |
4710 | phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; | |
4711 | pmbox = lpfc_mbox_get(phba); | |
4712 | if (!pmbox) { | |
4713 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); | |
4714 | return MBX_SUCCESS; | |
4715 | } | |
4716 | } | |
dea3101e | 4717 | |
ed957684 | 4718 | if (pmbox->mbox_cmpl && pmbox->mbox_cmpl != lpfc_sli_def_mbox_cmpl && |
92d7f7b0 | 4719 | pmbox->mbox_cmpl != lpfc_sli_wake_mbox_wait) { |
ed957684 | 4720 | if(!pmbox->vport) { |
58da1ffb | 4721 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); |
ed957684 | 4722 | lpfc_printf_log(phba, KERN_ERR, |
92d7f7b0 | 4723 | LOG_MBOX | LOG_VPORT, |
e8b62011 | 4724 | "1806 Mbox x%x failed. No vport\n", |
3772a991 | 4725 | pmbox->u.mb.mbxCommand); |
ed957684 | 4726 | dump_stack(); |
58da1ffb | 4727 | goto out_not_finished; |
ed957684 JS |
4728 | } |
4729 | } | |
4730 | ||
8d63f375 | 4731 | /* If the PCI channel is in offline state, do not post mbox. */ |
58da1ffb JS |
4732 | if (unlikely(pci_channel_offline(phba->pcidev))) { |
4733 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); | |
4734 | goto out_not_finished; | |
4735 | } | |
8d63f375 | 4736 | |
a257bf90 JS |
4737 | /* If HBA has a deferred error attention, fail the iocb. */ |
4738 | if (unlikely(phba->hba_flag & DEFER_ERATT)) { | |
4739 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); | |
4740 | goto out_not_finished; | |
4741 | } | |
4742 | ||
dea3101e | 4743 | psli = &phba->sli; |
92d7f7b0 | 4744 | |
3772a991 | 4745 | mb = &pmbox->u.mb; |
dea3101e | 4746 | status = MBX_SUCCESS; |
4747 | ||
2e0fef85 JS |
4748 | if (phba->link_state == LPFC_HBA_ERROR) { |
4749 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); | |
41415862 JW |
4750 | |
4751 | /* Mbox command <mbxCommand> cannot issue */ | |
3772a991 JS |
4752 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, |
4753 | "(%d):0311 Mailbox command x%x cannot " | |
4754 | "issue Data: x%x x%x\n", | |
4755 | pmbox->vport ? pmbox->vport->vpi : 0, | |
4756 | pmbox->u.mb.mbxCommand, psli->sli_flag, flag); | |
58da1ffb | 4757 | goto out_not_finished; |
41415862 JW |
4758 | } |
4759 | ||
9290831f JS |
4760 | if (mb->mbxCommand != MBX_KILL_BOARD && flag & MBX_NOWAIT && |
4761 | !(readl(phba->HCregaddr) & HC_MBINT_ENA)) { | |
2e0fef85 | 4762 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); |
3772a991 JS |
4763 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, |
4764 | "(%d):2528 Mailbox command x%x cannot " | |
4765 | "issue Data: x%x x%x\n", | |
4766 | pmbox->vport ? pmbox->vport->vpi : 0, | |
4767 | pmbox->u.mb.mbxCommand, psli->sli_flag, flag); | |
58da1ffb | 4768 | goto out_not_finished; |
9290831f JS |
4769 | } |
4770 | ||
dea3101e | 4771 | if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) { |
4772 | /* Polling for a mbox command when another one is already active | |
4773 | * is not allowed in SLI. Also, the driver must have established | |
4774 | * SLI2 mode to queue and process multiple mbox commands. | |
4775 | */ | |
4776 | ||
4777 | if (flag & MBX_POLL) { | |
2e0fef85 | 4778 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); |
dea3101e | 4779 | |
4780 | /* Mbox command <mbxCommand> cannot issue */ | |
3772a991 JS |
4781 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, |
4782 | "(%d):2529 Mailbox command x%x " | |
4783 | "cannot issue Data: x%x x%x\n", | |
4784 | pmbox->vport ? pmbox->vport->vpi : 0, | |
4785 | pmbox->u.mb.mbxCommand, | |
4786 | psli->sli_flag, flag); | |
58da1ffb | 4787 | goto out_not_finished; |
dea3101e | 4788 | } |
4789 | ||
3772a991 | 4790 | if (!(psli->sli_flag & LPFC_SLI_ACTIVE)) { |
2e0fef85 | 4791 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); |
dea3101e | 4792 | /* Mbox command <mbxCommand> cannot issue */ |
3772a991 JS |
4793 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, |
4794 | "(%d):2530 Mailbox command x%x " | |
4795 | "cannot issue Data: x%x x%x\n", | |
4796 | pmbox->vport ? pmbox->vport->vpi : 0, | |
4797 | pmbox->u.mb.mbxCommand, | |
4798 | psli->sli_flag, flag); | |
58da1ffb | 4799 | goto out_not_finished; |
dea3101e | 4800 | } |
4801 | ||
dea3101e | 4802 | /* Another mailbox command is still being processed, queue this |
4803 | * command to be processed later. | |
4804 | */ | |
4805 | lpfc_mbox_put(phba, pmbox); | |
4806 | ||
4807 | /* Mbox cmd issue - BUSY */ | |
ed957684 | 4808 | lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI, |
e8b62011 | 4809 | "(%d):0308 Mbox cmd issue - BUSY Data: " |
92d7f7b0 | 4810 | "x%x x%x x%x x%x\n", |
92d7f7b0 JS |
4811 | pmbox->vport ? pmbox->vport->vpi : 0xffffff, |
4812 | mb->mbxCommand, phba->pport->port_state, | |
4813 | psli->sli_flag, flag); | |
dea3101e | 4814 | |
4815 | psli->slistat.mbox_busy++; | |
2e0fef85 | 4816 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); |
dea3101e | 4817 | |
858c9f6c JS |
4818 | if (pmbox->vport) { |
4819 | lpfc_debugfs_disc_trc(pmbox->vport, | |
4820 | LPFC_DISC_TRC_MBOX_VPORT, | |
4821 | "MBOX Bsy vport: cmd:x%x mb:x%x x%x", | |
4822 | (uint32_t)mb->mbxCommand, | |
4823 | mb->un.varWords[0], mb->un.varWords[1]); | |
4824 | } | |
4825 | else { | |
4826 | lpfc_debugfs_disc_trc(phba->pport, | |
4827 | LPFC_DISC_TRC_MBOX, | |
4828 | "MBOX Bsy: cmd:x%x mb:x%x x%x", | |
4829 | (uint32_t)mb->mbxCommand, | |
4830 | mb->un.varWords[0], mb->un.varWords[1]); | |
4831 | } | |
4832 | ||
2e0fef85 | 4833 | return MBX_BUSY; |
dea3101e | 4834 | } |
4835 | ||
dea3101e | 4836 | psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE; |
4837 | ||
4838 | /* If we are not polling, we MUST be in SLI2 mode */ | |
4839 | if (flag != MBX_POLL) { | |
3772a991 | 4840 | if (!(psli->sli_flag & LPFC_SLI_ACTIVE) && |
41415862 | 4841 | (mb->mbxCommand != MBX_KILL_BOARD)) { |
dea3101e | 4842 | psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; |
2e0fef85 | 4843 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); |
dea3101e | 4844 | /* Mbox command <mbxCommand> cannot issue */ |
3772a991 JS |
4845 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, |
4846 | "(%d):2531 Mailbox command x%x " | |
4847 | "cannot issue Data: x%x x%x\n", | |
4848 | pmbox->vport ? pmbox->vport->vpi : 0, | |
4849 | pmbox->u.mb.mbxCommand, | |
4850 | psli->sli_flag, flag); | |
58da1ffb | 4851 | goto out_not_finished; |
dea3101e | 4852 | } |
4853 | /* timeout active mbox command */ | |
a309a6b6 JS |
4854 | mod_timer(&psli->mbox_tmo, (jiffies + |
4855 | (HZ * lpfc_mbox_tmo_val(phba, mb->mbxCommand)))); | |
dea3101e | 4856 | } |
4857 | ||
4858 | /* Mailbox cmd <cmd> issue */ | |
ed957684 | 4859 | lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI, |
e8b62011 | 4860 | "(%d):0309 Mailbox cmd x%x issue Data: x%x x%x " |
92d7f7b0 | 4861 | "x%x\n", |
e8b62011 | 4862 | pmbox->vport ? pmbox->vport->vpi : 0, |
92d7f7b0 JS |
4863 | mb->mbxCommand, phba->pport->port_state, |
4864 | psli->sli_flag, flag); | |
dea3101e | 4865 | |
858c9f6c JS |
4866 | if (mb->mbxCommand != MBX_HEARTBEAT) { |
4867 | if (pmbox->vport) { | |
4868 | lpfc_debugfs_disc_trc(pmbox->vport, | |
4869 | LPFC_DISC_TRC_MBOX_VPORT, | |
4870 | "MBOX Send vport: cmd:x%x mb:x%x x%x", | |
4871 | (uint32_t)mb->mbxCommand, | |
4872 | mb->un.varWords[0], mb->un.varWords[1]); | |
4873 | } | |
4874 | else { | |
4875 | lpfc_debugfs_disc_trc(phba->pport, | |
4876 | LPFC_DISC_TRC_MBOX, | |
4877 | "MBOX Send: cmd:x%x mb:x%x x%x", | |
4878 | (uint32_t)mb->mbxCommand, | |
4879 | mb->un.varWords[0], mb->un.varWords[1]); | |
4880 | } | |
4881 | } | |
4882 | ||
dea3101e | 4883 | psli->slistat.mbox_cmd++; |
4884 | evtctr = psli->slistat.mbox_event; | |
4885 | ||
4886 | /* next set own bit for the adapter and copy over command word */ | |
4887 | mb->mbxOwner = OWN_CHIP; | |
4888 | ||
3772a991 | 4889 | if (psli->sli_flag & LPFC_SLI_ACTIVE) { |
dea3101e | 4890 | /* First copy command data to host SLIM area */ |
34b02dcd | 4891 | lpfc_sli_pcimem_bcopy(mb, phba->mbox, MAILBOX_CMD_SIZE); |
dea3101e | 4892 | } else { |
9290831f | 4893 | if (mb->mbxCommand == MBX_CONFIG_PORT) { |
dea3101e | 4894 | /* copy command data into host mbox for cmpl */ |
34b02dcd | 4895 | lpfc_sli_pcimem_bcopy(mb, phba->mbox, MAILBOX_CMD_SIZE); |
dea3101e | 4896 | } |
4897 | ||
4898 | /* First copy mbox command data to HBA SLIM, skip past first | |
4899 | word */ | |
4900 | to_slim = phba->MBslimaddr + sizeof (uint32_t); | |
4901 | lpfc_memcpy_to_slim(to_slim, &mb->un.varWords[0], | |
4902 | MAILBOX_CMD_SIZE - sizeof (uint32_t)); | |
4903 | ||
4904 | /* Next copy over first word, with mbxOwner set */ | |
34b02dcd | 4905 | ldata = *((uint32_t *)mb); |
dea3101e | 4906 | to_slim = phba->MBslimaddr; |
4907 | writel(ldata, to_slim); | |
4908 | readl(to_slim); /* flush */ | |
4909 | ||
4910 | if (mb->mbxCommand == MBX_CONFIG_PORT) { | |
4911 | /* switch over to host mailbox */ | |
3772a991 | 4912 | psli->sli_flag |= LPFC_SLI_ACTIVE; |
dea3101e | 4913 | } |
4914 | } | |
4915 | ||
4916 | wmb(); | |
dea3101e | 4917 | |
4918 | switch (flag) { | |
4919 | case MBX_NOWAIT: | |
09372820 | 4920 | /* Set up reference to mailbox command */ |
dea3101e | 4921 | psli->mbox_active = pmbox; |
09372820 JS |
4922 | /* Interrupt board to do it */ |
4923 | writel(CA_MBATT, phba->CAregaddr); | |
4924 | readl(phba->CAregaddr); /* flush */ | |
4925 | /* Don't wait for it to finish, just return */ | |
dea3101e | 4926 | break; |
4927 | ||
4928 | case MBX_POLL: | |
09372820 | 4929 | /* Set up null reference to mailbox command */ |
dea3101e | 4930 | psli->mbox_active = NULL; |
09372820 JS |
4931 | /* Interrupt board to do it */ |
4932 | writel(CA_MBATT, phba->CAregaddr); | |
4933 | readl(phba->CAregaddr); /* flush */ | |
4934 | ||
3772a991 | 4935 | if (psli->sli_flag & LPFC_SLI_ACTIVE) { |
dea3101e | 4936 | /* First read mbox status word */ |
34b02dcd | 4937 | word0 = *((uint32_t *)phba->mbox); |
dea3101e | 4938 | word0 = le32_to_cpu(word0); |
4939 | } else { | |
4940 | /* First read mbox status word */ | |
4941 | word0 = readl(phba->MBslimaddr); | |
4942 | } | |
4943 | ||
4944 | /* Read the HBA Host Attention Register */ | |
4945 | ha_copy = readl(phba->HAregaddr); | |
09372820 JS |
4946 | timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, |
4947 | mb->mbxCommand) * | |
4948 | 1000) + jiffies; | |
4949 | i = 0; | |
dea3101e | 4950 | /* Wait for command to complete */ |
41415862 JW |
4951 | while (((word0 & OWN_CHIP) == OWN_CHIP) || |
4952 | (!(ha_copy & HA_MBATT) && | |
2e0fef85 | 4953 | (phba->link_state > LPFC_WARM_START))) { |
09372820 | 4954 | if (time_after(jiffies, timeout)) { |
dea3101e | 4955 | psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; |
2e0fef85 | 4956 | spin_unlock_irqrestore(&phba->hbalock, |
dea3101e | 4957 | drvr_flag); |
58da1ffb | 4958 | goto out_not_finished; |
dea3101e | 4959 | } |
4960 | ||
4961 | /* Check if we took a mbox interrupt while we were | |
4962 | polling */ | |
4963 | if (((word0 & OWN_CHIP) != OWN_CHIP) | |
4964 | && (evtctr != psli->slistat.mbox_event)) | |
4965 | break; | |
4966 | ||
09372820 JS |
4967 | if (i++ > 10) { |
4968 | spin_unlock_irqrestore(&phba->hbalock, | |
4969 | drvr_flag); | |
4970 | msleep(1); | |
4971 | spin_lock_irqsave(&phba->hbalock, drvr_flag); | |
4972 | } | |
dea3101e | 4973 | |
3772a991 | 4974 | if (psli->sli_flag & LPFC_SLI_ACTIVE) { |
dea3101e | 4975 | /* First copy command data */ |
34b02dcd | 4976 | word0 = *((uint32_t *)phba->mbox); |
dea3101e | 4977 | word0 = le32_to_cpu(word0); |
4978 | if (mb->mbxCommand == MBX_CONFIG_PORT) { | |
4979 | MAILBOX_t *slimmb; | |
34b02dcd | 4980 | uint32_t slimword0; |
dea3101e | 4981 | /* Check real SLIM for any errors */ |
4982 | slimword0 = readl(phba->MBslimaddr); | |
4983 | slimmb = (MAILBOX_t *) & slimword0; | |
4984 | if (((slimword0 & OWN_CHIP) != OWN_CHIP) | |
4985 | && slimmb->mbxStatus) { | |
4986 | psli->sli_flag &= | |
3772a991 | 4987 | ~LPFC_SLI_ACTIVE; |
dea3101e | 4988 | word0 = slimword0; |
4989 | } | |
4990 | } | |
4991 | } else { | |
4992 | /* First copy command data */ | |
4993 | word0 = readl(phba->MBslimaddr); | |
4994 | } | |
4995 | /* Read the HBA Host Attention Register */ | |
4996 | ha_copy = readl(phba->HAregaddr); | |
4997 | } | |
4998 | ||
3772a991 | 4999 | if (psli->sli_flag & LPFC_SLI_ACTIVE) { |
dea3101e | 5000 | /* copy results back to user */ |
34b02dcd | 5001 | lpfc_sli_pcimem_bcopy(phba->mbox, mb, MAILBOX_CMD_SIZE); |
dea3101e | 5002 | } else { |
5003 | /* First copy command data */ | |
5004 | lpfc_memcpy_from_slim(mb, phba->MBslimaddr, | |
5005 | MAILBOX_CMD_SIZE); | |
5006 | if ((mb->mbxCommand == MBX_DUMP_MEMORY) && | |
5007 | pmbox->context2) { | |
92d7f7b0 | 5008 | lpfc_memcpy_from_slim((void *)pmbox->context2, |
dea3101e | 5009 | phba->MBslimaddr + DMP_RSP_OFFSET, |
5010 | mb->un.varDmp.word_cnt); | |
5011 | } | |
5012 | } | |
5013 | ||
5014 | writel(HA_MBATT, phba->HAregaddr); | |
5015 | readl(phba->HAregaddr); /* flush */ | |
5016 | ||
5017 | psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; | |
5018 | status = mb->mbxStatus; | |
5019 | } | |
5020 | ||
2e0fef85 JS |
5021 | spin_unlock_irqrestore(&phba->hbalock, drvr_flag); |
5022 | return status; | |
58da1ffb JS |
5023 | |
5024 | out_not_finished: | |
5025 | if (processing_queue) { | |
da0436e9 | 5026 | pmbox->u.mb.mbxStatus = MBX_NOT_FINISHED; |
58da1ffb JS |
5027 | lpfc_mbox_cmpl_put(phba, pmbox); |
5028 | } | |
5029 | return MBX_NOT_FINISHED; | |
dea3101e | 5030 | } |
5031 | ||
f1126688 JS |
5032 | /** |
5033 | * lpfc_sli4_async_mbox_block - Block posting SLI4 asynchronous mailbox command | |
5034 | * @phba: Pointer to HBA context object. | |
5035 | * | |
5036 | * The function blocks the posting of SLI4 asynchronous mailbox commands from | |
5037 | * the driver internal pending mailbox queue. It will then try to wait out the | |
5038 | * possible outstanding mailbox command before return. | |
5039 | * | |
5040 | * Returns: | |
5041 | * 0 - the outstanding mailbox command completed; otherwise, the wait for | |
5042 | * the outstanding mailbox command timed out. | |
5043 | **/ | |
5044 | static int | |
5045 | lpfc_sli4_async_mbox_block(struct lpfc_hba *phba) | |
5046 | { | |
5047 | struct lpfc_sli *psli = &phba->sli; | |
5048 | uint8_t actcmd = MBX_HEARTBEAT; | |
5049 | int rc = 0; | |
5050 | unsigned long timeout; | |
5051 | ||
5052 | /* Mark the asynchronous mailbox command posting as blocked */ | |
5053 | spin_lock_irq(&phba->hbalock); | |
5054 | psli->sli_flag |= LPFC_SLI_ASYNC_MBX_BLK; | |
5055 | if (phba->sli.mbox_active) | |
5056 | actcmd = phba->sli.mbox_active->u.mb.mbxCommand; | |
5057 | spin_unlock_irq(&phba->hbalock); | |
5058 | /* Determine how long we might wait for the active mailbox | |
5059 | * command to be gracefully completed by firmware. | |
5060 | */ | |
5061 | timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, actcmd) * 1000) + | |
5062 | jiffies; | |
5063 | /* Wait for the outstnading mailbox command to complete */ | |
5064 | while (phba->sli.mbox_active) { | |
5065 | /* Check active mailbox complete status every 2ms */ | |
5066 | msleep(2); | |
5067 | if (time_after(jiffies, timeout)) { | |
5068 | /* Timeout, marked the outstanding cmd not complete */ | |
5069 | rc = 1; | |
5070 | break; | |
5071 | } | |
5072 | } | |
5073 | ||
5074 | /* Can not cleanly block async mailbox command, fails it */ | |
5075 | if (rc) { | |
5076 | spin_lock_irq(&phba->hbalock); | |
5077 | psli->sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK; | |
5078 | spin_unlock_irq(&phba->hbalock); | |
5079 | } | |
5080 | return rc; | |
5081 | } | |
5082 | ||
5083 | /** | |
5084 | * lpfc_sli4_async_mbox_unblock - Block posting SLI4 async mailbox command | |
5085 | * @phba: Pointer to HBA context object. | |
5086 | * | |
5087 | * The function unblocks and resume posting of SLI4 asynchronous mailbox | |
5088 | * commands from the driver internal pending mailbox queue. It makes sure | |
5089 | * that there is no outstanding mailbox command before resuming posting | |
5090 | * asynchronous mailbox commands. If, for any reason, there is outstanding | |
5091 | * mailbox command, it will try to wait it out before resuming asynchronous | |
5092 | * mailbox command posting. | |
5093 | **/ | |
5094 | static void | |
5095 | lpfc_sli4_async_mbox_unblock(struct lpfc_hba *phba) | |
5096 | { | |
5097 | struct lpfc_sli *psli = &phba->sli; | |
5098 | ||
5099 | spin_lock_irq(&phba->hbalock); | |
5100 | if (!(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) { | |
5101 | /* Asynchronous mailbox posting is not blocked, do nothing */ | |
5102 | spin_unlock_irq(&phba->hbalock); | |
5103 | return; | |
5104 | } | |
5105 | ||
5106 | /* Outstanding synchronous mailbox command is guaranteed to be done, | |
5107 | * successful or timeout, after timing-out the outstanding mailbox | |
5108 | * command shall always be removed, so just unblock posting async | |
5109 | * mailbox command and resume | |
5110 | */ | |
5111 | psli->sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK; | |
5112 | spin_unlock_irq(&phba->hbalock); | |
5113 | ||
5114 | /* wake up worker thread to post asynchronlous mailbox command */ | |
5115 | lpfc_worker_wake_up(phba); | |
5116 | } | |
5117 | ||
da0436e9 JS |
5118 | /** |
5119 | * lpfc_sli4_post_sync_mbox - Post an SLI4 mailbox to the bootstrap mailbox | |
5120 | * @phba: Pointer to HBA context object. | |
5121 | * @mboxq: Pointer to mailbox object. | |
5122 | * | |
5123 | * The function posts a mailbox to the port. The mailbox is expected | |
5124 | * to be comletely filled in and ready for the port to operate on it. | |
5125 | * This routine executes a synchronous completion operation on the | |
5126 | * mailbox by polling for its completion. | |
5127 | * | |
5128 | * The caller must not be holding any locks when calling this routine. | |
5129 | * | |
5130 | * Returns: | |
5131 | * MBX_SUCCESS - mailbox posted successfully | |
5132 | * Any of the MBX error values. | |
5133 | **/ | |
5134 | static int | |
5135 | lpfc_sli4_post_sync_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) | |
5136 | { | |
5137 | int rc = MBX_SUCCESS; | |
5138 | unsigned long iflag; | |
5139 | uint32_t db_ready; | |
5140 | uint32_t mcqe_status; | |
5141 | uint32_t mbx_cmnd; | |
5142 | unsigned long timeout; | |
5143 | struct lpfc_sli *psli = &phba->sli; | |
5144 | struct lpfc_mqe *mb = &mboxq->u.mqe; | |
5145 | struct lpfc_bmbx_create *mbox_rgn; | |
5146 | struct dma_address *dma_address; | |
5147 | struct lpfc_register bmbx_reg; | |
5148 | ||
5149 | /* | |
5150 | * Only one mailbox can be active to the bootstrap mailbox region | |
5151 | * at a time and there is no queueing provided. | |
5152 | */ | |
5153 | spin_lock_irqsave(&phba->hbalock, iflag); | |
5154 | if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) { | |
5155 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
5156 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, | |
5157 | "(%d):2532 Mailbox command x%x (x%x) " | |
5158 | "cannot issue Data: x%x x%x\n", | |
5159 | mboxq->vport ? mboxq->vport->vpi : 0, | |
5160 | mboxq->u.mb.mbxCommand, | |
5161 | lpfc_sli4_mbox_opcode_get(phba, mboxq), | |
5162 | psli->sli_flag, MBX_POLL); | |
5163 | return MBXERR_ERROR; | |
5164 | } | |
5165 | /* The server grabs the token and owns it until release */ | |
5166 | psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE; | |
5167 | phba->sli.mbox_active = mboxq; | |
5168 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
5169 | ||
5170 | /* | |
5171 | * Initialize the bootstrap memory region to avoid stale data areas | |
5172 | * in the mailbox post. Then copy the caller's mailbox contents to | |
5173 | * the bmbx mailbox region. | |
5174 | */ | |
5175 | mbx_cmnd = bf_get(lpfc_mqe_command, mb); | |
5176 | memset(phba->sli4_hba.bmbx.avirt, 0, sizeof(struct lpfc_bmbx_create)); | |
5177 | lpfc_sli_pcimem_bcopy(mb, phba->sli4_hba.bmbx.avirt, | |
5178 | sizeof(struct lpfc_mqe)); | |
5179 | ||
5180 | /* Post the high mailbox dma address to the port and wait for ready. */ | |
5181 | dma_address = &phba->sli4_hba.bmbx.dma_address; | |
5182 | writel(dma_address->addr_hi, phba->sli4_hba.BMBXregaddr); | |
5183 | ||
5184 | timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, mbx_cmnd) | |
5185 | * 1000) + jiffies; | |
5186 | do { | |
5187 | bmbx_reg.word0 = readl(phba->sli4_hba.BMBXregaddr); | |
5188 | db_ready = bf_get(lpfc_bmbx_rdy, &bmbx_reg); | |
5189 | if (!db_ready) | |
5190 | msleep(2); | |
5191 | ||
5192 | if (time_after(jiffies, timeout)) { | |
5193 | rc = MBXERR_ERROR; | |
5194 | goto exit; | |
5195 | } | |
5196 | } while (!db_ready); | |
5197 | ||
5198 | /* Post the low mailbox dma address to the port. */ | |
5199 | writel(dma_address->addr_lo, phba->sli4_hba.BMBXregaddr); | |
5200 | timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, mbx_cmnd) | |
5201 | * 1000) + jiffies; | |
5202 | do { | |
5203 | bmbx_reg.word0 = readl(phba->sli4_hba.BMBXregaddr); | |
5204 | db_ready = bf_get(lpfc_bmbx_rdy, &bmbx_reg); | |
5205 | if (!db_ready) | |
5206 | msleep(2); | |
5207 | ||
5208 | if (time_after(jiffies, timeout)) { | |
5209 | rc = MBXERR_ERROR; | |
5210 | goto exit; | |
5211 | } | |
5212 | } while (!db_ready); | |
5213 | ||
5214 | /* | |
5215 | * Read the CQ to ensure the mailbox has completed. | |
5216 | * If so, update the mailbox status so that the upper layers | |
5217 | * can complete the request normally. | |
5218 | */ | |
5219 | lpfc_sli_pcimem_bcopy(phba->sli4_hba.bmbx.avirt, mb, | |
5220 | sizeof(struct lpfc_mqe)); | |
5221 | mbox_rgn = (struct lpfc_bmbx_create *) phba->sli4_hba.bmbx.avirt; | |
5222 | lpfc_sli_pcimem_bcopy(&mbox_rgn->mcqe, &mboxq->mcqe, | |
5223 | sizeof(struct lpfc_mcqe)); | |
5224 | mcqe_status = bf_get(lpfc_mcqe_status, &mbox_rgn->mcqe); | |
5225 | ||
5226 | /* Prefix the mailbox status with range x4000 to note SLI4 status. */ | |
5227 | if (mcqe_status != MB_CQE_STATUS_SUCCESS) { | |
5228 | bf_set(lpfc_mqe_status, mb, LPFC_MBX_ERROR_RANGE | mcqe_status); | |
5229 | rc = MBXERR_ERROR; | |
5230 | } | |
5231 | ||
5232 | lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI, | |
5233 | "(%d):0356 Mailbox cmd x%x (x%x) Status x%x " | |
5234 | "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x" | |
5235 | " x%x x%x CQ: x%x x%x x%x x%x\n", | |
5236 | mboxq->vport ? mboxq->vport->vpi : 0, | |
5237 | mbx_cmnd, lpfc_sli4_mbox_opcode_get(phba, mboxq), | |
5238 | bf_get(lpfc_mqe_status, mb), | |
5239 | mb->un.mb_words[0], mb->un.mb_words[1], | |
5240 | mb->un.mb_words[2], mb->un.mb_words[3], | |
5241 | mb->un.mb_words[4], mb->un.mb_words[5], | |
5242 | mb->un.mb_words[6], mb->un.mb_words[7], | |
5243 | mb->un.mb_words[8], mb->un.mb_words[9], | |
5244 | mb->un.mb_words[10], mb->un.mb_words[11], | |
5245 | mb->un.mb_words[12], mboxq->mcqe.word0, | |
5246 | mboxq->mcqe.mcqe_tag0, mboxq->mcqe.mcqe_tag1, | |
5247 | mboxq->mcqe.trailer); | |
5248 | exit: | |
5249 | /* We are holding the token, no needed for lock when release */ | |
5250 | spin_lock_irqsave(&phba->hbalock, iflag); | |
5251 | psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; | |
5252 | phba->sli.mbox_active = NULL; | |
5253 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
5254 | return rc; | |
5255 | } | |
5256 | ||
5257 | /** | |
5258 | * lpfc_sli_issue_mbox_s4 - Issue an SLI4 mailbox command to firmware | |
5259 | * @phba: Pointer to HBA context object. | |
5260 | * @pmbox: Pointer to mailbox object. | |
5261 | * @flag: Flag indicating how the mailbox need to be processed. | |
5262 | * | |
5263 | * This function is called by discovery code and HBA management code to submit | |
5264 | * a mailbox command to firmware with SLI-4 interface spec. | |
5265 | * | |
5266 | * Return codes the caller owns the mailbox command after the return of the | |
5267 | * function. | |
5268 | **/ | |
5269 | static int | |
5270 | lpfc_sli_issue_mbox_s4(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq, | |
5271 | uint32_t flag) | |
5272 | { | |
5273 | struct lpfc_sli *psli = &phba->sli; | |
5274 | unsigned long iflags; | |
5275 | int rc; | |
5276 | ||
5277 | /* Detect polling mode and jump to a handler */ | |
5278 | if (!phba->sli4_hba.intr_enable) { | |
5279 | if (flag == MBX_POLL) | |
5280 | rc = lpfc_sli4_post_sync_mbox(phba, mboxq); | |
5281 | else | |
5282 | rc = -EIO; | |
5283 | if (rc != MBX_SUCCESS) | |
5284 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, | |
5285 | "(%d):2541 Mailbox command x%x " | |
5286 | "(x%x) cannot issue Data: x%x x%x\n", | |
5287 | mboxq->vport ? mboxq->vport->vpi : 0, | |
5288 | mboxq->u.mb.mbxCommand, | |
5289 | lpfc_sli4_mbox_opcode_get(phba, mboxq), | |
5290 | psli->sli_flag, flag); | |
5291 | return rc; | |
5292 | } else if (flag == MBX_POLL) { | |
f1126688 JS |
5293 | lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI, |
5294 | "(%d):2542 Try to issue mailbox command " | |
5295 | "x%x (x%x) synchronously ahead of async" | |
5296 | "mailbox command queue: x%x x%x\n", | |
da0436e9 JS |
5297 | mboxq->vport ? mboxq->vport->vpi : 0, |
5298 | mboxq->u.mb.mbxCommand, | |
5299 | lpfc_sli4_mbox_opcode_get(phba, mboxq), | |
5300 | psli->sli_flag, flag); | |
f1126688 JS |
5301 | /* Try to block the asynchronous mailbox posting */ |
5302 | rc = lpfc_sli4_async_mbox_block(phba); | |
5303 | if (!rc) { | |
5304 | /* Successfully blocked, now issue sync mbox cmd */ | |
5305 | rc = lpfc_sli4_post_sync_mbox(phba, mboxq); | |
5306 | if (rc != MBX_SUCCESS) | |
5307 | lpfc_printf_log(phba, KERN_ERR, | |
5308 | LOG_MBOX | LOG_SLI, | |
5309 | "(%d):2597 Mailbox command " | |
5310 | "x%x (x%x) cannot issue " | |
5311 | "Data: x%x x%x\n", | |
5312 | mboxq->vport ? | |
5313 | mboxq->vport->vpi : 0, | |
5314 | mboxq->u.mb.mbxCommand, | |
5315 | lpfc_sli4_mbox_opcode_get(phba, | |
5316 | mboxq), | |
5317 | psli->sli_flag, flag); | |
5318 | /* Unblock the async mailbox posting afterward */ | |
5319 | lpfc_sli4_async_mbox_unblock(phba); | |
5320 | } | |
5321 | return rc; | |
da0436e9 JS |
5322 | } |
5323 | ||
5324 | /* Now, interrupt mode asynchrous mailbox command */ | |
5325 | rc = lpfc_mbox_cmd_check(phba, mboxq); | |
5326 | if (rc) { | |
5327 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, | |
5328 | "(%d):2543 Mailbox command x%x (x%x) " | |
5329 | "cannot issue Data: x%x x%x\n", | |
5330 | mboxq->vport ? mboxq->vport->vpi : 0, | |
5331 | mboxq->u.mb.mbxCommand, | |
5332 | lpfc_sli4_mbox_opcode_get(phba, mboxq), | |
5333 | psli->sli_flag, flag); | |
5334 | goto out_not_finished; | |
5335 | } | |
5336 | rc = lpfc_mbox_dev_check(phba); | |
5337 | if (unlikely(rc)) { | |
5338 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, | |
5339 | "(%d):2544 Mailbox command x%x (x%x) " | |
5340 | "cannot issue Data: x%x x%x\n", | |
5341 | mboxq->vport ? mboxq->vport->vpi : 0, | |
5342 | mboxq->u.mb.mbxCommand, | |
5343 | lpfc_sli4_mbox_opcode_get(phba, mboxq), | |
5344 | psli->sli_flag, flag); | |
5345 | goto out_not_finished; | |
5346 | } | |
5347 | ||
5348 | /* Put the mailbox command to the driver internal FIFO */ | |
5349 | psli->slistat.mbox_busy++; | |
5350 | spin_lock_irqsave(&phba->hbalock, iflags); | |
5351 | lpfc_mbox_put(phba, mboxq); | |
5352 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
5353 | lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI, | |
5354 | "(%d):0354 Mbox cmd issue - Enqueue Data: " | |
5355 | "x%x (x%x) x%x x%x x%x\n", | |
5356 | mboxq->vport ? mboxq->vport->vpi : 0xffffff, | |
5357 | bf_get(lpfc_mqe_command, &mboxq->u.mqe), | |
5358 | lpfc_sli4_mbox_opcode_get(phba, mboxq), | |
5359 | phba->pport->port_state, | |
5360 | psli->sli_flag, MBX_NOWAIT); | |
5361 | /* Wake up worker thread to transport mailbox command from head */ | |
5362 | lpfc_worker_wake_up(phba); | |
5363 | ||
5364 | return MBX_BUSY; | |
5365 | ||
5366 | out_not_finished: | |
5367 | return MBX_NOT_FINISHED; | |
5368 | } | |
5369 | ||
5370 | /** | |
5371 | * lpfc_sli4_post_async_mbox - Post an SLI4 mailbox command to device | |
5372 | * @phba: Pointer to HBA context object. | |
5373 | * | |
5374 | * This function is called by worker thread to send a mailbox command to | |
5375 | * SLI4 HBA firmware. | |
5376 | * | |
5377 | **/ | |
5378 | int | |
5379 | lpfc_sli4_post_async_mbox(struct lpfc_hba *phba) | |
5380 | { | |
5381 | struct lpfc_sli *psli = &phba->sli; | |
5382 | LPFC_MBOXQ_t *mboxq; | |
5383 | int rc = MBX_SUCCESS; | |
5384 | unsigned long iflags; | |
5385 | struct lpfc_mqe *mqe; | |
5386 | uint32_t mbx_cmnd; | |
5387 | ||
5388 | /* Check interrupt mode before post async mailbox command */ | |
5389 | if (unlikely(!phba->sli4_hba.intr_enable)) | |
5390 | return MBX_NOT_FINISHED; | |
5391 | ||
5392 | /* Check for mailbox command service token */ | |
5393 | spin_lock_irqsave(&phba->hbalock, iflags); | |
5394 | if (unlikely(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) { | |
5395 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
5396 | return MBX_NOT_FINISHED; | |
5397 | } | |
5398 | if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) { | |
5399 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
5400 | return MBX_NOT_FINISHED; | |
5401 | } | |
5402 | if (unlikely(phba->sli.mbox_active)) { | |
5403 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
5404 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, | |
5405 | "0384 There is pending active mailbox cmd\n"); | |
5406 | return MBX_NOT_FINISHED; | |
5407 | } | |
5408 | /* Take the mailbox command service token */ | |
5409 | psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE; | |
5410 | ||
5411 | /* Get the next mailbox command from head of queue */ | |
5412 | mboxq = lpfc_mbox_get(phba); | |
5413 | ||
5414 | /* If no more mailbox command waiting for post, we're done */ | |
5415 | if (!mboxq) { | |
5416 | psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; | |
5417 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
5418 | return MBX_SUCCESS; | |
5419 | } | |
5420 | phba->sli.mbox_active = mboxq; | |
5421 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
5422 | ||
5423 | /* Check device readiness for posting mailbox command */ | |
5424 | rc = lpfc_mbox_dev_check(phba); | |
5425 | if (unlikely(rc)) | |
5426 | /* Driver clean routine will clean up pending mailbox */ | |
5427 | goto out_not_finished; | |
5428 | ||
5429 | /* Prepare the mbox command to be posted */ | |
5430 | mqe = &mboxq->u.mqe; | |
5431 | mbx_cmnd = bf_get(lpfc_mqe_command, mqe); | |
5432 | ||
5433 | /* Start timer for the mbox_tmo and log some mailbox post messages */ | |
5434 | mod_timer(&psli->mbox_tmo, (jiffies + | |
5435 | (HZ * lpfc_mbox_tmo_val(phba, mbx_cmnd)))); | |
5436 | ||
5437 | lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI, | |
5438 | "(%d):0355 Mailbox cmd x%x (x%x) issue Data: " | |
5439 | "x%x x%x\n", | |
5440 | mboxq->vport ? mboxq->vport->vpi : 0, mbx_cmnd, | |
5441 | lpfc_sli4_mbox_opcode_get(phba, mboxq), | |
5442 | phba->pport->port_state, psli->sli_flag); | |
5443 | ||
5444 | if (mbx_cmnd != MBX_HEARTBEAT) { | |
5445 | if (mboxq->vport) { | |
5446 | lpfc_debugfs_disc_trc(mboxq->vport, | |
5447 | LPFC_DISC_TRC_MBOX_VPORT, | |
5448 | "MBOX Send vport: cmd:x%x mb:x%x x%x", | |
5449 | mbx_cmnd, mqe->un.mb_words[0], | |
5450 | mqe->un.mb_words[1]); | |
5451 | } else { | |
5452 | lpfc_debugfs_disc_trc(phba->pport, | |
5453 | LPFC_DISC_TRC_MBOX, | |
5454 | "MBOX Send: cmd:x%x mb:x%x x%x", | |
5455 | mbx_cmnd, mqe->un.mb_words[0], | |
5456 | mqe->un.mb_words[1]); | |
5457 | } | |
5458 | } | |
5459 | psli->slistat.mbox_cmd++; | |
5460 | ||
5461 | /* Post the mailbox command to the port */ | |
5462 | rc = lpfc_sli4_mq_put(phba->sli4_hba.mbx_wq, mqe); | |
5463 | if (rc != MBX_SUCCESS) { | |
5464 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, | |
5465 | "(%d):2533 Mailbox command x%x (x%x) " | |
5466 | "cannot issue Data: x%x x%x\n", | |
5467 | mboxq->vport ? mboxq->vport->vpi : 0, | |
5468 | mboxq->u.mb.mbxCommand, | |
5469 | lpfc_sli4_mbox_opcode_get(phba, mboxq), | |
5470 | psli->sli_flag, MBX_NOWAIT); | |
5471 | goto out_not_finished; | |
5472 | } | |
5473 | ||
5474 | return rc; | |
5475 | ||
5476 | out_not_finished: | |
5477 | spin_lock_irqsave(&phba->hbalock, iflags); | |
5478 | mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED; | |
5479 | __lpfc_mbox_cmpl_put(phba, mboxq); | |
5480 | /* Release the token */ | |
5481 | psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; | |
5482 | phba->sli.mbox_active = NULL; | |
5483 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
5484 | ||
5485 | return MBX_NOT_FINISHED; | |
5486 | } | |
5487 | ||
5488 | /** | |
5489 | * lpfc_sli_issue_mbox - Wrapper func for issuing mailbox command | |
5490 | * @phba: Pointer to HBA context object. | |
5491 | * @pmbox: Pointer to mailbox object. | |
5492 | * @flag: Flag indicating how the mailbox need to be processed. | |
5493 | * | |
5494 | * This routine wraps the actual SLI3 or SLI4 mailbox issuing routine from | |
5495 | * the API jump table function pointer from the lpfc_hba struct. | |
5496 | * | |
5497 | * Return codes the caller owns the mailbox command after the return of the | |
5498 | * function. | |
5499 | **/ | |
5500 | int | |
5501 | lpfc_sli_issue_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox, uint32_t flag) | |
5502 | { | |
5503 | return phba->lpfc_sli_issue_mbox(phba, pmbox, flag); | |
5504 | } | |
5505 | ||
5506 | /** | |
5507 | * lpfc_mbox_api_table_setup - Set up mbox api fucntion jump table | |
5508 | * @phba: The hba struct for which this call is being executed. | |
5509 | * @dev_grp: The HBA PCI-Device group number. | |
5510 | * | |
5511 | * This routine sets up the mbox interface API function jump table in @phba | |
5512 | * struct. | |
5513 | * Returns: 0 - success, -ENODEV - failure. | |
5514 | **/ | |
5515 | int | |
5516 | lpfc_mbox_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) | |
5517 | { | |
5518 | ||
5519 | switch (dev_grp) { | |
5520 | case LPFC_PCI_DEV_LP: | |
5521 | phba->lpfc_sli_issue_mbox = lpfc_sli_issue_mbox_s3; | |
5522 | phba->lpfc_sli_handle_slow_ring_event = | |
5523 | lpfc_sli_handle_slow_ring_event_s3; | |
5524 | phba->lpfc_sli_hbq_to_firmware = lpfc_sli_hbq_to_firmware_s3; | |
5525 | phba->lpfc_sli_brdrestart = lpfc_sli_brdrestart_s3; | |
5526 | phba->lpfc_sli_brdready = lpfc_sli_brdready_s3; | |
5527 | break; | |
5528 | case LPFC_PCI_DEV_OC: | |
5529 | phba->lpfc_sli_issue_mbox = lpfc_sli_issue_mbox_s4; | |
5530 | phba->lpfc_sli_handle_slow_ring_event = | |
5531 | lpfc_sli_handle_slow_ring_event_s4; | |
5532 | phba->lpfc_sli_hbq_to_firmware = lpfc_sli_hbq_to_firmware_s4; | |
5533 | phba->lpfc_sli_brdrestart = lpfc_sli_brdrestart_s4; | |
5534 | phba->lpfc_sli_brdready = lpfc_sli_brdready_s4; | |
5535 | break; | |
5536 | default: | |
5537 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
5538 | "1420 Invalid HBA PCI-device group: 0x%x\n", | |
5539 | dev_grp); | |
5540 | return -ENODEV; | |
5541 | break; | |
5542 | } | |
5543 | return 0; | |
5544 | } | |
5545 | ||
e59058c4 | 5546 | /** |
3621a710 | 5547 | * __lpfc_sli_ringtx_put - Add an iocb to the txq |
e59058c4 JS |
5548 | * @phba: Pointer to HBA context object. |
5549 | * @pring: Pointer to driver SLI ring object. | |
5550 | * @piocb: Pointer to address of newly added command iocb. | |
5551 | * | |
5552 | * This function is called with hbalock held to add a command | |
5553 | * iocb to the txq when SLI layer cannot submit the command iocb | |
5554 | * to the ring. | |
5555 | **/ | |
858c9f6c | 5556 | static void |
92d7f7b0 | 5557 | __lpfc_sli_ringtx_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, |
2e0fef85 | 5558 | struct lpfc_iocbq *piocb) |
dea3101e | 5559 | { |
5560 | /* Insert the caller's iocb in the txq tail for later processing. */ | |
5561 | list_add_tail(&piocb->list, &pring->txq); | |
5562 | pring->txq_cnt++; | |
dea3101e | 5563 | } |
5564 | ||
e59058c4 | 5565 | /** |
3621a710 | 5566 | * lpfc_sli_next_iocb - Get the next iocb in the txq |
e59058c4 JS |
5567 | * @phba: Pointer to HBA context object. |
5568 | * @pring: Pointer to driver SLI ring object. | |
5569 | * @piocb: Pointer to address of newly added command iocb. | |
5570 | * | |
5571 | * This function is called with hbalock held before a new | |
5572 | * iocb is submitted to the firmware. This function checks | |
5573 | * txq to flush the iocbs in txq to Firmware before | |
5574 | * submitting new iocbs to the Firmware. | |
5575 | * If there are iocbs in the txq which need to be submitted | |
5576 | * to firmware, lpfc_sli_next_iocb returns the first element | |
5577 | * of the txq after dequeuing it from txq. | |
5578 | * If there is no iocb in the txq then the function will return | |
5579 | * *piocb and *piocb is set to NULL. Caller needs to check | |
5580 | * *piocb to find if there are more commands in the txq. | |
5581 | **/ | |
dea3101e | 5582 | static struct lpfc_iocbq * |
5583 | lpfc_sli_next_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
2e0fef85 | 5584 | struct lpfc_iocbq **piocb) |
dea3101e | 5585 | { |
5586 | struct lpfc_iocbq * nextiocb; | |
5587 | ||
5588 | nextiocb = lpfc_sli_ringtx_get(phba, pring); | |
5589 | if (!nextiocb) { | |
5590 | nextiocb = *piocb; | |
5591 | *piocb = NULL; | |
5592 | } | |
5593 | ||
5594 | return nextiocb; | |
5595 | } | |
5596 | ||
e59058c4 | 5597 | /** |
3772a991 | 5598 | * __lpfc_sli_issue_iocb_s3 - SLI3 device lockless ver of lpfc_sli_issue_iocb |
e59058c4 | 5599 | * @phba: Pointer to HBA context object. |
3772a991 | 5600 | * @ring_number: SLI ring number to issue iocb on. |
e59058c4 JS |
5601 | * @piocb: Pointer to command iocb. |
5602 | * @flag: Flag indicating if this command can be put into txq. | |
5603 | * | |
3772a991 JS |
5604 | * __lpfc_sli_issue_iocb_s3 is used by other functions in the driver to issue |
5605 | * an iocb command to an HBA with SLI-3 interface spec. If the PCI slot is | |
5606 | * recovering from error state, if HBA is resetting or if LPFC_STOP_IOCB_EVENT | |
5607 | * flag is turned on, the function returns IOCB_ERROR. When the link is down, | |
5608 | * this function allows only iocbs for posting buffers. This function finds | |
5609 | * next available slot in the command ring and posts the command to the | |
5610 | * available slot and writes the port attention register to request HBA start | |
5611 | * processing new iocb. If there is no slot available in the ring and | |
5612 | * flag & SLI_IOCB_RET_IOCB is set, the new iocb is added to the txq, otherwise | |
5613 | * the function returns IOCB_BUSY. | |
e59058c4 | 5614 | * |
3772a991 JS |
5615 | * This function is called with hbalock held. The function will return success |
5616 | * after it successfully submit the iocb to firmware or after adding to the | |
5617 | * txq. | |
e59058c4 | 5618 | **/ |
98c9ea5c | 5619 | static int |
3772a991 | 5620 | __lpfc_sli_issue_iocb_s3(struct lpfc_hba *phba, uint32_t ring_number, |
dea3101e | 5621 | struct lpfc_iocbq *piocb, uint32_t flag) |
5622 | { | |
5623 | struct lpfc_iocbq *nextiocb; | |
5624 | IOCB_t *iocb; | |
3772a991 | 5625 | struct lpfc_sli_ring *pring = &phba->sli.ring[ring_number]; |
dea3101e | 5626 | |
92d7f7b0 JS |
5627 | if (piocb->iocb_cmpl && (!piocb->vport) && |
5628 | (piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) && | |
5629 | (piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN)) { | |
5630 | lpfc_printf_log(phba, KERN_ERR, | |
5631 | LOG_SLI | LOG_VPORT, | |
e8b62011 | 5632 | "1807 IOCB x%x failed. No vport\n", |
92d7f7b0 JS |
5633 | piocb->iocb.ulpCommand); |
5634 | dump_stack(); | |
5635 | return IOCB_ERROR; | |
5636 | } | |
5637 | ||
5638 | ||
8d63f375 LV |
5639 | /* If the PCI channel is in offline state, do not post iocbs. */ |
5640 | if (unlikely(pci_channel_offline(phba->pcidev))) | |
5641 | return IOCB_ERROR; | |
5642 | ||
a257bf90 JS |
5643 | /* If HBA has a deferred error attention, fail the iocb. */ |
5644 | if (unlikely(phba->hba_flag & DEFER_ERATT)) | |
5645 | return IOCB_ERROR; | |
5646 | ||
dea3101e | 5647 | /* |
5648 | * We should never get an IOCB if we are in a < LINK_DOWN state | |
5649 | */ | |
2e0fef85 | 5650 | if (unlikely(phba->link_state < LPFC_LINK_DOWN)) |
dea3101e | 5651 | return IOCB_ERROR; |
5652 | ||
5653 | /* | |
5654 | * Check to see if we are blocking IOCB processing because of a | |
0b727fea | 5655 | * outstanding event. |
dea3101e | 5656 | */ |
0b727fea | 5657 | if (unlikely(pring->flag & LPFC_STOP_IOCB_EVENT)) |
dea3101e | 5658 | goto iocb_busy; |
5659 | ||
2e0fef85 | 5660 | if (unlikely(phba->link_state == LPFC_LINK_DOWN)) { |
dea3101e | 5661 | /* |
2680eeaa | 5662 | * Only CREATE_XRI, CLOSE_XRI, and QUE_RING_BUF |
dea3101e | 5663 | * can be issued if the link is not up. |
5664 | */ | |
5665 | switch (piocb->iocb.ulpCommand) { | |
84774a4d JS |
5666 | case CMD_GEN_REQUEST64_CR: |
5667 | case CMD_GEN_REQUEST64_CX: | |
5668 | if (!(phba->sli.sli_flag & LPFC_MENLO_MAINT) || | |
5669 | (piocb->iocb.un.genreq64.w5.hcsw.Rctl != | |
5670 | FC_FCP_CMND) || | |
5671 | (piocb->iocb.un.genreq64.w5.hcsw.Type != | |
5672 | MENLO_TRANSPORT_TYPE)) | |
5673 | ||
5674 | goto iocb_busy; | |
5675 | break; | |
dea3101e | 5676 | case CMD_QUE_RING_BUF_CN: |
5677 | case CMD_QUE_RING_BUF64_CN: | |
dea3101e | 5678 | /* |
5679 | * For IOCBs, like QUE_RING_BUF, that have no rsp ring | |
5680 | * completion, iocb_cmpl MUST be 0. | |
5681 | */ | |
5682 | if (piocb->iocb_cmpl) | |
5683 | piocb->iocb_cmpl = NULL; | |
5684 | /*FALLTHROUGH*/ | |
5685 | case CMD_CREATE_XRI_CR: | |
2680eeaa JS |
5686 | case CMD_CLOSE_XRI_CN: |
5687 | case CMD_CLOSE_XRI_CX: | |
dea3101e | 5688 | break; |
5689 | default: | |
5690 | goto iocb_busy; | |
5691 | } | |
5692 | ||
5693 | /* | |
5694 | * For FCP commands, we must be in a state where we can process link | |
5695 | * attention events. | |
5696 | */ | |
5697 | } else if (unlikely(pring->ringno == phba->sli.fcp_ring && | |
92d7f7b0 | 5698 | !(phba->sli.sli_flag & LPFC_PROCESS_LA))) { |
dea3101e | 5699 | goto iocb_busy; |
92d7f7b0 | 5700 | } |
dea3101e | 5701 | |
dea3101e | 5702 | while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) && |
5703 | (nextiocb = lpfc_sli_next_iocb(phba, pring, &piocb))) | |
5704 | lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb); | |
5705 | ||
5706 | if (iocb) | |
5707 | lpfc_sli_update_ring(phba, pring); | |
5708 | else | |
5709 | lpfc_sli_update_full_ring(phba, pring); | |
5710 | ||
5711 | if (!piocb) | |
5712 | return IOCB_SUCCESS; | |
5713 | ||
5714 | goto out_busy; | |
5715 | ||
5716 | iocb_busy: | |
5717 | pring->stats.iocb_cmd_delay++; | |
5718 | ||
5719 | out_busy: | |
5720 | ||
5721 | if (!(flag & SLI_IOCB_RET_IOCB)) { | |
92d7f7b0 | 5722 | __lpfc_sli_ringtx_put(phba, pring, piocb); |
dea3101e | 5723 | return IOCB_SUCCESS; |
5724 | } | |
5725 | ||
5726 | return IOCB_BUSY; | |
5727 | } | |
5728 | ||
3772a991 | 5729 | /** |
4f774513 JS |
5730 | * lpfc_sli4_bpl2sgl - Convert the bpl/bde to a sgl. |
5731 | * @phba: Pointer to HBA context object. | |
5732 | * @piocb: Pointer to command iocb. | |
5733 | * @sglq: Pointer to the scatter gather queue object. | |
5734 | * | |
5735 | * This routine converts the bpl or bde that is in the IOCB | |
5736 | * to a sgl list for the sli4 hardware. The physical address | |
5737 | * of the bpl/bde is converted back to a virtual address. | |
5738 | * If the IOCB contains a BPL then the list of BDE's is | |
5739 | * converted to sli4_sge's. If the IOCB contains a single | |
5740 | * BDE then it is converted to a single sli_sge. | |
5741 | * The IOCB is still in cpu endianess so the contents of | |
5742 | * the bpl can be used without byte swapping. | |
5743 | * | |
5744 | * Returns valid XRI = Success, NO_XRI = Failure. | |
5745 | **/ | |
5746 | static uint16_t | |
5747 | lpfc_sli4_bpl2sgl(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq, | |
5748 | struct lpfc_sglq *sglq) | |
3772a991 | 5749 | { |
4f774513 JS |
5750 | uint16_t xritag = NO_XRI; |
5751 | struct ulp_bde64 *bpl = NULL; | |
5752 | struct ulp_bde64 bde; | |
5753 | struct sli4_sge *sgl = NULL; | |
5754 | IOCB_t *icmd; | |
5755 | int numBdes = 0; | |
5756 | int i = 0; | |
3772a991 | 5757 | |
4f774513 JS |
5758 | if (!piocbq || !sglq) |
5759 | return xritag; | |
5760 | ||
5761 | sgl = (struct sli4_sge *)sglq->sgl; | |
5762 | icmd = &piocbq->iocb; | |
5763 | if (icmd->un.genreq64.bdl.bdeFlags == BUFF_TYPE_BLP_64) { | |
5764 | numBdes = icmd->un.genreq64.bdl.bdeSize / | |
5765 | sizeof(struct ulp_bde64); | |
5766 | /* The addrHigh and addrLow fields within the IOCB | |
5767 | * have not been byteswapped yet so there is no | |
5768 | * need to swap them back. | |
5769 | */ | |
5770 | bpl = (struct ulp_bde64 *) | |
5771 | ((struct lpfc_dmabuf *)piocbq->context3)->virt; | |
5772 | ||
5773 | if (!bpl) | |
5774 | return xritag; | |
5775 | ||
5776 | for (i = 0; i < numBdes; i++) { | |
5777 | /* Should already be byte swapped. */ | |
5778 | sgl->addr_hi = bpl->addrHigh; | |
5779 | sgl->addr_lo = bpl->addrLow; | |
5780 | /* swap the size field back to the cpu so we | |
5781 | * can assign it to the sgl. | |
5782 | */ | |
5783 | bde.tus.w = le32_to_cpu(bpl->tus.w); | |
5784 | bf_set(lpfc_sli4_sge_len, sgl, bde.tus.f.bdeSize); | |
5785 | if ((i+1) == numBdes) | |
5786 | bf_set(lpfc_sli4_sge_last, sgl, 1); | |
5787 | else | |
5788 | bf_set(lpfc_sli4_sge_last, sgl, 0); | |
5789 | sgl->word2 = cpu_to_le32(sgl->word2); | |
5790 | sgl->word3 = cpu_to_le32(sgl->word3); | |
5791 | bpl++; | |
5792 | sgl++; | |
5793 | } | |
5794 | } else if (icmd->un.genreq64.bdl.bdeFlags == BUFF_TYPE_BDE_64) { | |
5795 | /* The addrHigh and addrLow fields of the BDE have not | |
5796 | * been byteswapped yet so they need to be swapped | |
5797 | * before putting them in the sgl. | |
5798 | */ | |
5799 | sgl->addr_hi = | |
5800 | cpu_to_le32(icmd->un.genreq64.bdl.addrHigh); | |
5801 | sgl->addr_lo = | |
5802 | cpu_to_le32(icmd->un.genreq64.bdl.addrLow); | |
5803 | bf_set(lpfc_sli4_sge_len, sgl, | |
5804 | icmd->un.genreq64.bdl.bdeSize); | |
5805 | bf_set(lpfc_sli4_sge_last, sgl, 1); | |
5806 | sgl->word2 = cpu_to_le32(sgl->word2); | |
5807 | sgl->word3 = cpu_to_le32(sgl->word3); | |
5808 | } | |
5809 | return sglq->sli4_xritag; | |
3772a991 | 5810 | } |
92d7f7b0 | 5811 | |
e59058c4 | 5812 | /** |
4f774513 | 5813 | * lpfc_sli4_scmd_to_wqidx_distr - scsi command to SLI4 WQ index distribution |
e59058c4 | 5814 | * @phba: Pointer to HBA context object. |
e59058c4 | 5815 | * @piocb: Pointer to command iocb. |
e59058c4 | 5816 | * |
4f774513 JS |
5817 | * This routine performs a round robin SCSI command to SLI4 FCP WQ index |
5818 | * distribution. | |
5819 | * | |
5820 | * Return: index into SLI4 fast-path FCP queue index. | |
e59058c4 | 5821 | **/ |
4f774513 JS |
5822 | static uint32_t |
5823 | lpfc_sli4_scmd_to_wqidx_distr(struct lpfc_hba *phba, struct lpfc_iocbq *piocb) | |
92d7f7b0 | 5824 | { |
4f774513 | 5825 | static uint32_t fcp_qidx; |
92d7f7b0 | 5826 | |
4f774513 | 5827 | return fcp_qidx++ % phba->cfg_fcp_wq_count; |
92d7f7b0 JS |
5828 | } |
5829 | ||
e59058c4 | 5830 | /** |
4f774513 | 5831 | * lpfc_sli_iocb2wqe - Convert the IOCB to a work queue entry. |
e59058c4 | 5832 | * @phba: Pointer to HBA context object. |
4f774513 JS |
5833 | * @piocb: Pointer to command iocb. |
5834 | * @wqe: Pointer to the work queue entry. | |
e59058c4 | 5835 | * |
4f774513 JS |
5836 | * This routine converts the iocb command to its Work Queue Entry |
5837 | * equivalent. The wqe pointer should not have any fields set when | |
5838 | * this routine is called because it will memcpy over them. | |
5839 | * This routine does not set the CQ_ID or the WQEC bits in the | |
5840 | * wqe. | |
e59058c4 | 5841 | * |
4f774513 | 5842 | * Returns: 0 = Success, IOCB_ERROR = Failure. |
e59058c4 | 5843 | **/ |
cf5bf97e | 5844 | static int |
4f774513 JS |
5845 | lpfc_sli4_iocb2wqe(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq, |
5846 | union lpfc_wqe *wqe) | |
cf5bf97e | 5847 | { |
4f774513 JS |
5848 | uint32_t payload_len = 0; |
5849 | uint8_t ct = 0; | |
5850 | uint32_t fip; | |
5851 | uint32_t abort_tag; | |
5852 | uint8_t command_type = ELS_COMMAND_NON_FIP; | |
5853 | uint8_t cmnd; | |
5854 | uint16_t xritag; | |
5855 | struct ulp_bde64 *bpl = NULL; | |
5856 | ||
5857 | fip = bf_get(lpfc_fip_flag, &phba->sli4_hba.sli4_flags); | |
5858 | /* The fcp commands will set command type */ | |
5859 | if ((!(iocbq->iocb_flag & LPFC_IO_FCP)) && (!fip)) | |
5860 | command_type = ELS_COMMAND_NON_FIP; | |
5861 | else if (!(iocbq->iocb_flag & LPFC_IO_FCP)) | |
5862 | command_type = ELS_COMMAND_FIP; | |
5863 | else if (iocbq->iocb_flag & LPFC_IO_FCP) | |
5864 | command_type = FCP_COMMAND; | |
5865 | else { | |
5866 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
5867 | "2019 Invalid cmd 0x%x\n", | |
5868 | iocbq->iocb.ulpCommand); | |
5869 | return IOCB_ERROR; | |
5870 | } | |
5871 | /* Some of the fields are in the right position already */ | |
5872 | memcpy(wqe, &iocbq->iocb, sizeof(union lpfc_wqe)); | |
5873 | abort_tag = (uint32_t) iocbq->iotag; | |
5874 | xritag = iocbq->sli4_xritag; | |
5875 | wqe->words[7] = 0; /* The ct field has moved so reset */ | |
5876 | /* words0-2 bpl convert bde */ | |
5877 | if (iocbq->iocb.un.genreq64.bdl.bdeFlags == BUFF_TYPE_BLP_64) { | |
5878 | bpl = (struct ulp_bde64 *) | |
5879 | ((struct lpfc_dmabuf *)iocbq->context3)->virt; | |
5880 | if (!bpl) | |
5881 | return IOCB_ERROR; | |
cf5bf97e | 5882 | |
4f774513 JS |
5883 | /* Should already be byte swapped. */ |
5884 | wqe->generic.bde.addrHigh = le32_to_cpu(bpl->addrHigh); | |
5885 | wqe->generic.bde.addrLow = le32_to_cpu(bpl->addrLow); | |
5886 | /* swap the size field back to the cpu so we | |
5887 | * can assign it to the sgl. | |
5888 | */ | |
5889 | wqe->generic.bde.tus.w = le32_to_cpu(bpl->tus.w); | |
5890 | payload_len = wqe->generic.bde.tus.f.bdeSize; | |
5891 | } else | |
5892 | payload_len = iocbq->iocb.un.fcpi64.bdl.bdeSize; | |
cf5bf97e | 5893 | |
4f774513 JS |
5894 | iocbq->iocb.ulpIoTag = iocbq->iotag; |
5895 | cmnd = iocbq->iocb.ulpCommand; | |
a4bc3379 | 5896 | |
4f774513 JS |
5897 | switch (iocbq->iocb.ulpCommand) { |
5898 | case CMD_ELS_REQUEST64_CR: | |
5899 | if (!iocbq->iocb.ulpLe) { | |
5900 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
5901 | "2007 Only Limited Edition cmd Format" | |
5902 | " supported 0x%x\n", | |
5903 | iocbq->iocb.ulpCommand); | |
5904 | return IOCB_ERROR; | |
5905 | } | |
5906 | wqe->els_req.payload_len = payload_len; | |
5907 | /* Els_reguest64 has a TMO */ | |
5908 | bf_set(wqe_tmo, &wqe->els_req.wqe_com, | |
5909 | iocbq->iocb.ulpTimeout); | |
5910 | /* Need a VF for word 4 set the vf bit*/ | |
5911 | bf_set(els_req64_vf, &wqe->els_req, 0); | |
5912 | /* And a VFID for word 12 */ | |
5913 | bf_set(els_req64_vfid, &wqe->els_req, 0); | |
5914 | /* | |
5915 | * Set ct field to 3, indicates that the context_tag field | |
5916 | * contains the FCFI and remote N_Port_ID is | |
5917 | * in word 5. | |
5918 | */ | |
5919 | ||
5920 | ct = ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l); | |
5921 | bf_set(lpfc_wqe_gen_context, &wqe->generic, | |
5922 | iocbq->iocb.ulpContext); | |
5923 | ||
4f774513 JS |
5924 | bf_set(lpfc_wqe_gen_ct, &wqe->generic, ct); |
5925 | bf_set(lpfc_wqe_gen_pu, &wqe->generic, 0); | |
5926 | /* CCP CCPE PV PRI in word10 were set in the memcpy */ | |
5927 | break; | |
5928 | case CMD_XMIT_SEQUENCE64_CR: | |
5929 | /* word3 iocb=io_tag32 wqe=payload_offset */ | |
5930 | /* payload offset used for multilpe outstanding | |
5931 | * sequences on the same exchange | |
5932 | */ | |
5933 | wqe->words[3] = 0; | |
5934 | /* word4 relative_offset memcpy */ | |
5935 | /* word5 r_ctl/df_ctl memcpy */ | |
5936 | bf_set(lpfc_wqe_gen_pu, &wqe->generic, 0); | |
5937 | wqe->xmit_sequence.xmit_len = payload_len; | |
5938 | break; | |
5939 | case CMD_XMIT_BCAST64_CN: | |
5940 | /* word3 iocb=iotag32 wqe=payload_len */ | |
5941 | wqe->words[3] = 0; /* no definition for this in wqe */ | |
5942 | /* word4 iocb=rsvd wqe=rsvd */ | |
5943 | /* word5 iocb=rctl/type/df_ctl wqe=rctl/type/df_ctl memcpy */ | |
5944 | /* word6 iocb=ctxt_tag/io_tag wqe=ctxt_tag/xri */ | |
5945 | bf_set(lpfc_wqe_gen_ct, &wqe->generic, | |
5946 | ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l)); | |
5947 | break; | |
5948 | case CMD_FCP_IWRITE64_CR: | |
5949 | command_type = FCP_COMMAND_DATA_OUT; | |
5950 | /* The struct for wqe fcp_iwrite has 3 fields that are somewhat | |
5951 | * confusing. | |
5952 | * word3 is payload_len: byte offset to the sgl entry for the | |
5953 | * fcp_command. | |
5954 | * word4 is total xfer len, same as the IOCB->ulpParameter. | |
5955 | * word5 is initial xfer len 0 = wait for xfer-ready | |
5956 | */ | |
5957 | ||
5958 | /* Always wait for xfer-ready before sending data */ | |
5959 | wqe->fcp_iwrite.initial_xfer_len = 0; | |
5960 | /* word 4 (xfer length) should have been set on the memcpy */ | |
5961 | ||
5962 | /* allow write to fall through to read */ | |
5963 | case CMD_FCP_IREAD64_CR: | |
5964 | /* FCP_CMD is always the 1st sgl entry */ | |
5965 | wqe->fcp_iread.payload_len = | |
5966 | payload_len + sizeof(struct fcp_rsp); | |
5967 | ||
5968 | /* word 4 (xfer length) should have been set on the memcpy */ | |
5969 | ||
5970 | bf_set(lpfc_wqe_gen_erp, &wqe->generic, | |
5971 | iocbq->iocb.ulpFCP2Rcvy); | |
5972 | bf_set(lpfc_wqe_gen_lnk, &wqe->generic, iocbq->iocb.ulpXS); | |
5973 | /* The XC bit and the XS bit are similar. The driver never | |
5974 | * tracked whether or not the exchange was previouslly open. | |
5975 | * XC = Exchange create, 0 is create. 1 is already open. | |
5976 | * XS = link cmd: 1 do not close the exchange after command. | |
5977 | * XS = 0 close exchange when command completes. | |
5978 | * The only time we would not set the XC bit is when the XS bit | |
5979 | * is set and we are sending our 2nd or greater command on | |
5980 | * this exchange. | |
5981 | */ | |
f1126688 JS |
5982 | /* Always open the exchange */ |
5983 | bf_set(wqe_xc, &wqe->fcp_iread.wqe_com, 0); | |
4f774513 | 5984 | |
f1126688 JS |
5985 | wqe->words[10] &= 0xffff0000; /* zero out ebde count */ |
5986 | bf_set(lpfc_wqe_gen_pu, &wqe->generic, iocbq->iocb.ulpPU); | |
5987 | break; | |
4f774513 JS |
5988 | case CMD_FCP_ICMND64_CR: |
5989 | /* Always open the exchange */ | |
5990 | bf_set(wqe_xc, &wqe->fcp_iread.wqe_com, 0); | |
5991 | ||
f1126688 | 5992 | wqe->words[4] = 0; |
4f774513 | 5993 | wqe->words[10] &= 0xffff0000; /* zero out ebde count */ |
f1126688 | 5994 | bf_set(lpfc_wqe_gen_pu, &wqe->generic, 0); |
4f774513 JS |
5995 | break; |
5996 | case CMD_GEN_REQUEST64_CR: | |
5997 | /* word3 command length is described as byte offset to the | |
5998 | * rsp_data. Would always be 16, sizeof(struct sli4_sge) | |
5999 | * sgl[0] = cmnd | |
6000 | * sgl[1] = rsp. | |
6001 | * | |
6002 | */ | |
6003 | wqe->gen_req.command_len = payload_len; | |
6004 | /* Word4 parameter copied in the memcpy */ | |
6005 | /* Word5 [rctl, type, df_ctl, la] copied in memcpy */ | |
6006 | /* word6 context tag copied in memcpy */ | |
6007 | if (iocbq->iocb.ulpCt_h || iocbq->iocb.ulpCt_l) { | |
6008 | ct = ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l); | |
6009 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
6010 | "2015 Invalid CT %x command 0x%x\n", | |
6011 | ct, iocbq->iocb.ulpCommand); | |
6012 | return IOCB_ERROR; | |
6013 | } | |
6014 | bf_set(lpfc_wqe_gen_ct, &wqe->generic, 0); | |
6015 | bf_set(wqe_tmo, &wqe->gen_req.wqe_com, | |
6016 | iocbq->iocb.ulpTimeout); | |
6017 | ||
6018 | bf_set(lpfc_wqe_gen_pu, &wqe->generic, iocbq->iocb.ulpPU); | |
6019 | command_type = OTHER_COMMAND; | |
6020 | break; | |
6021 | case CMD_XMIT_ELS_RSP64_CX: | |
6022 | /* words0-2 BDE memcpy */ | |
6023 | /* word3 iocb=iotag32 wqe=rsvd */ | |
6024 | wqe->words[3] = 0; | |
6025 | /* word4 iocb=did wge=rsvd. */ | |
6026 | wqe->words[4] = 0; | |
6027 | /* word5 iocb=rsvd wge=did */ | |
6028 | bf_set(wqe_els_did, &wqe->xmit_els_rsp.wqe_dest, | |
6029 | iocbq->iocb.un.elsreq64.remoteID); | |
6030 | ||
6031 | bf_set(lpfc_wqe_gen_ct, &wqe->generic, | |
6032 | ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l)); | |
6033 | ||
6034 | bf_set(lpfc_wqe_gen_pu, &wqe->generic, iocbq->iocb.ulpPU); | |
6035 | bf_set(wqe_rcvoxid, &wqe->generic, iocbq->iocb.ulpContext); | |
6036 | if (!iocbq->iocb.ulpCt_h && iocbq->iocb.ulpCt_l) | |
6037 | bf_set(lpfc_wqe_gen_context, &wqe->generic, | |
6038 | iocbq->vport->vpi + phba->vpi_base); | |
6039 | command_type = OTHER_COMMAND; | |
6040 | break; | |
6041 | case CMD_CLOSE_XRI_CN: | |
6042 | case CMD_ABORT_XRI_CN: | |
6043 | case CMD_ABORT_XRI_CX: | |
6044 | /* words 0-2 memcpy should be 0 rserved */ | |
6045 | /* port will send abts */ | |
6046 | if (iocbq->iocb.ulpCommand == CMD_CLOSE_XRI_CN) | |
6047 | /* | |
6048 | * The link is down so the fw does not need to send abts | |
6049 | * on the wire. | |
6050 | */ | |
6051 | bf_set(abort_cmd_ia, &wqe->abort_cmd, 1); | |
6052 | else | |
6053 | bf_set(abort_cmd_ia, &wqe->abort_cmd, 0); | |
6054 | bf_set(abort_cmd_criteria, &wqe->abort_cmd, T_XRI_TAG); | |
6055 | abort_tag = iocbq->iocb.un.acxri.abortIoTag; | |
6056 | wqe->words[5] = 0; | |
6057 | bf_set(lpfc_wqe_gen_ct, &wqe->generic, | |
6058 | ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l)); | |
6059 | abort_tag = iocbq->iocb.un.acxri.abortIoTag; | |
6060 | wqe->generic.abort_tag = abort_tag; | |
6061 | /* | |
6062 | * The abort handler will send us CMD_ABORT_XRI_CN or | |
6063 | * CMD_CLOSE_XRI_CN and the fw only accepts CMD_ABORT_XRI_CX | |
6064 | */ | |
6065 | bf_set(lpfc_wqe_gen_command, &wqe->generic, CMD_ABORT_XRI_CX); | |
6066 | cmnd = CMD_ABORT_XRI_CX; | |
6067 | command_type = OTHER_COMMAND; | |
6068 | xritag = 0; | |
6069 | break; | |
6070 | case CMD_XRI_ABORTED_CX: | |
6071 | case CMD_CREATE_XRI_CR: /* Do we expect to use this? */ | |
6072 | /* words0-2 are all 0's no bde */ | |
6073 | /* word3 and word4 are rsvrd */ | |
6074 | wqe->words[3] = 0; | |
6075 | wqe->words[4] = 0; | |
6076 | /* word5 iocb=rsvd wge=did */ | |
6077 | /* There is no remote port id in the IOCB? */ | |
6078 | /* Let this fall through and fail */ | |
6079 | case CMD_IOCB_FCP_IBIDIR64_CR: /* bidirectional xfer */ | |
6080 | case CMD_FCP_TSEND64_CX: /* Target mode send xfer-ready */ | |
6081 | case CMD_FCP_TRSP64_CX: /* Target mode rcv */ | |
6082 | case CMD_FCP_AUTO_TRSP_CX: /* Auto target rsp */ | |
6083 | default: | |
6084 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
6085 | "2014 Invalid command 0x%x\n", | |
6086 | iocbq->iocb.ulpCommand); | |
6087 | return IOCB_ERROR; | |
6088 | break; | |
6089 | ||
6090 | } | |
6091 | bf_set(lpfc_wqe_gen_xri, &wqe->generic, xritag); | |
6092 | bf_set(lpfc_wqe_gen_request_tag, &wqe->generic, iocbq->iotag); | |
6093 | wqe->generic.abort_tag = abort_tag; | |
6094 | bf_set(lpfc_wqe_gen_cmd_type, &wqe->generic, command_type); | |
6095 | bf_set(lpfc_wqe_gen_command, &wqe->generic, cmnd); | |
6096 | bf_set(lpfc_wqe_gen_class, &wqe->generic, iocbq->iocb.ulpClass); | |
6097 | bf_set(lpfc_wqe_gen_cq_id, &wqe->generic, LPFC_WQE_CQ_ID_DEFAULT); | |
6098 | ||
6099 | return 0; | |
6100 | } | |
6101 | ||
6102 | /** | |
6103 | * __lpfc_sli_issue_iocb_s4 - SLI4 device lockless ver of lpfc_sli_issue_iocb | |
6104 | * @phba: Pointer to HBA context object. | |
6105 | * @ring_number: SLI ring number to issue iocb on. | |
6106 | * @piocb: Pointer to command iocb. | |
6107 | * @flag: Flag indicating if this command can be put into txq. | |
6108 | * | |
6109 | * __lpfc_sli_issue_iocb_s4 is used by other functions in the driver to issue | |
6110 | * an iocb command to an HBA with SLI-4 interface spec. | |
6111 | * | |
6112 | * This function is called with hbalock held. The function will return success | |
6113 | * after it successfully submit the iocb to firmware or after adding to the | |
6114 | * txq. | |
6115 | **/ | |
6116 | static int | |
6117 | __lpfc_sli_issue_iocb_s4(struct lpfc_hba *phba, uint32_t ring_number, | |
6118 | struct lpfc_iocbq *piocb, uint32_t flag) | |
6119 | { | |
6120 | struct lpfc_sglq *sglq; | |
6121 | uint16_t xritag; | |
6122 | union lpfc_wqe wqe; | |
6123 | struct lpfc_sli_ring *pring = &phba->sli.ring[ring_number]; | |
6124 | uint32_t fcp_wqidx; | |
6125 | ||
6126 | if (piocb->sli4_xritag == NO_XRI) { | |
6127 | if (piocb->iocb.ulpCommand == CMD_ABORT_XRI_CN || | |
6128 | piocb->iocb.ulpCommand == CMD_CLOSE_XRI_CN) | |
6129 | sglq = NULL; | |
6130 | else { | |
6131 | sglq = __lpfc_sli_get_sglq(phba); | |
6132 | if (!sglq) | |
6133 | return IOCB_ERROR; | |
6134 | piocb->sli4_xritag = sglq->sli4_xritag; | |
6135 | } | |
6136 | } else if (piocb->iocb_flag & LPFC_IO_FCP) { | |
6137 | sglq = NULL; /* These IO's already have an XRI and | |
6138 | * a mapped sgl. | |
6139 | */ | |
6140 | } else { | |
6141 | /* This is a continuation of a commandi,(CX) so this | |
6142 | * sglq is on the active list | |
6143 | */ | |
6144 | sglq = __lpfc_get_active_sglq(phba, piocb->sli4_xritag); | |
6145 | if (!sglq) | |
6146 | return IOCB_ERROR; | |
6147 | } | |
6148 | ||
6149 | if (sglq) { | |
6150 | xritag = lpfc_sli4_bpl2sgl(phba, piocb, sglq); | |
6151 | if (xritag != sglq->sli4_xritag) | |
6152 | return IOCB_ERROR; | |
6153 | } | |
6154 | ||
6155 | if (lpfc_sli4_iocb2wqe(phba, piocb, &wqe)) | |
6156 | return IOCB_ERROR; | |
6157 | ||
6158 | if (piocb->iocb_flag & LPFC_IO_FCP) { | |
6159 | fcp_wqidx = lpfc_sli4_scmd_to_wqidx_distr(phba, piocb); | |
6160 | if (lpfc_sli4_wq_put(phba->sli4_hba.fcp_wq[fcp_wqidx], &wqe)) | |
6161 | return IOCB_ERROR; | |
6162 | } else { | |
6163 | if (lpfc_sli4_wq_put(phba->sli4_hba.els_wq, &wqe)) | |
6164 | return IOCB_ERROR; | |
6165 | } | |
6166 | lpfc_sli_ringtxcmpl_put(phba, pring, piocb); | |
6167 | ||
6168 | return 0; | |
6169 | } | |
6170 | ||
6171 | /** | |
6172 | * __lpfc_sli_issue_iocb - Wrapper func of lockless version for issuing iocb | |
6173 | * | |
6174 | * This routine wraps the actual lockless version for issusing IOCB function | |
6175 | * pointer from the lpfc_hba struct. | |
6176 | * | |
6177 | * Return codes: | |
6178 | * IOCB_ERROR - Error | |
6179 | * IOCB_SUCCESS - Success | |
6180 | * IOCB_BUSY - Busy | |
6181 | **/ | |
6182 | static inline int | |
6183 | __lpfc_sli_issue_iocb(struct lpfc_hba *phba, uint32_t ring_number, | |
6184 | struct lpfc_iocbq *piocb, uint32_t flag) | |
6185 | { | |
6186 | return phba->__lpfc_sli_issue_iocb(phba, ring_number, piocb, flag); | |
6187 | } | |
6188 | ||
6189 | /** | |
6190 | * lpfc_sli_api_table_setup - Set up sli api fucntion jump table | |
6191 | * @phba: The hba struct for which this call is being executed. | |
6192 | * @dev_grp: The HBA PCI-Device group number. | |
6193 | * | |
6194 | * This routine sets up the SLI interface API function jump table in @phba | |
6195 | * struct. | |
6196 | * Returns: 0 - success, -ENODEV - failure. | |
6197 | **/ | |
6198 | int | |
6199 | lpfc_sli_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) | |
6200 | { | |
6201 | ||
6202 | switch (dev_grp) { | |
6203 | case LPFC_PCI_DEV_LP: | |
6204 | phba->__lpfc_sli_issue_iocb = __lpfc_sli_issue_iocb_s3; | |
6205 | phba->__lpfc_sli_release_iocbq = __lpfc_sli_release_iocbq_s3; | |
6206 | break; | |
6207 | case LPFC_PCI_DEV_OC: | |
6208 | phba->__lpfc_sli_issue_iocb = __lpfc_sli_issue_iocb_s4; | |
6209 | phba->__lpfc_sli_release_iocbq = __lpfc_sli_release_iocbq_s4; | |
6210 | break; | |
6211 | default: | |
6212 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
6213 | "1419 Invalid HBA PCI-device group: 0x%x\n", | |
6214 | dev_grp); | |
6215 | return -ENODEV; | |
6216 | break; | |
6217 | } | |
6218 | phba->lpfc_get_iocb_from_iocbq = lpfc_get_iocb_from_iocbq; | |
6219 | return 0; | |
6220 | } | |
6221 | ||
6222 | /** | |
6223 | * lpfc_sli_issue_iocb - Wrapper function for __lpfc_sli_issue_iocb | |
6224 | * @phba: Pointer to HBA context object. | |
6225 | * @pring: Pointer to driver SLI ring object. | |
6226 | * @piocb: Pointer to command iocb. | |
6227 | * @flag: Flag indicating if this command can be put into txq. | |
6228 | * | |
6229 | * lpfc_sli_issue_iocb is a wrapper around __lpfc_sli_issue_iocb | |
6230 | * function. This function gets the hbalock and calls | |
6231 | * __lpfc_sli_issue_iocb function and will return the error returned | |
6232 | * by __lpfc_sli_issue_iocb function. This wrapper is used by | |
6233 | * functions which do not hold hbalock. | |
6234 | **/ | |
6235 | int | |
6236 | lpfc_sli_issue_iocb(struct lpfc_hba *phba, uint32_t ring_number, | |
6237 | struct lpfc_iocbq *piocb, uint32_t flag) | |
6238 | { | |
6239 | unsigned long iflags; | |
6240 | int rc; | |
6241 | ||
6242 | spin_lock_irqsave(&phba->hbalock, iflags); | |
6243 | rc = __lpfc_sli_issue_iocb(phba, ring_number, piocb, flag); | |
6244 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
6245 | ||
6246 | return rc; | |
6247 | } | |
6248 | ||
6249 | /** | |
6250 | * lpfc_extra_ring_setup - Extra ring setup function | |
6251 | * @phba: Pointer to HBA context object. | |
6252 | * | |
6253 | * This function is called while driver attaches with the | |
6254 | * HBA to setup the extra ring. The extra ring is used | |
6255 | * only when driver needs to support target mode functionality | |
6256 | * or IP over FC functionalities. | |
6257 | * | |
6258 | * This function is called with no lock held. | |
6259 | **/ | |
6260 | static int | |
6261 | lpfc_extra_ring_setup( struct lpfc_hba *phba) | |
6262 | { | |
6263 | struct lpfc_sli *psli; | |
6264 | struct lpfc_sli_ring *pring; | |
6265 | ||
6266 | psli = &phba->sli; | |
6267 | ||
6268 | /* Adjust cmd/rsp ring iocb entries more evenly */ | |
6269 | ||
6270 | /* Take some away from the FCP ring */ | |
6271 | pring = &psli->ring[psli->fcp_ring]; | |
6272 | pring->numCiocb -= SLI2_IOCB_CMD_R1XTRA_ENTRIES; | |
6273 | pring->numRiocb -= SLI2_IOCB_RSP_R1XTRA_ENTRIES; | |
cf5bf97e JW |
6274 | pring->numCiocb -= SLI2_IOCB_CMD_R3XTRA_ENTRIES; |
6275 | pring->numRiocb -= SLI2_IOCB_RSP_R3XTRA_ENTRIES; | |
6276 | ||
a4bc3379 JS |
6277 | /* and give them to the extra ring */ |
6278 | pring = &psli->ring[psli->extra_ring]; | |
6279 | ||
cf5bf97e JW |
6280 | pring->numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES; |
6281 | pring->numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES; | |
6282 | pring->numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES; | |
6283 | pring->numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES; | |
6284 | ||
6285 | /* Setup default profile for this ring */ | |
6286 | pring->iotag_max = 4096; | |
6287 | pring->num_mask = 1; | |
6288 | pring->prt[0].profile = 0; /* Mask 0 */ | |
a4bc3379 JS |
6289 | pring->prt[0].rctl = phba->cfg_multi_ring_rctl; |
6290 | pring->prt[0].type = phba->cfg_multi_ring_type; | |
cf5bf97e JW |
6291 | pring->prt[0].lpfc_sli_rcv_unsol_event = NULL; |
6292 | return 0; | |
6293 | } | |
6294 | ||
e59058c4 | 6295 | /** |
3621a710 | 6296 | * lpfc_sli_async_event_handler - ASYNC iocb handler function |
e59058c4 JS |
6297 | * @phba: Pointer to HBA context object. |
6298 | * @pring: Pointer to driver SLI ring object. | |
6299 | * @iocbq: Pointer to iocb object. | |
6300 | * | |
6301 | * This function is called by the slow ring event handler | |
6302 | * function when there is an ASYNC event iocb in the ring. | |
6303 | * This function is called with no lock held. | |
6304 | * Currently this function handles only temperature related | |
6305 | * ASYNC events. The function decodes the temperature sensor | |
6306 | * event message and posts events for the management applications. | |
6307 | **/ | |
98c9ea5c | 6308 | static void |
57127f15 JS |
6309 | lpfc_sli_async_event_handler(struct lpfc_hba * phba, |
6310 | struct lpfc_sli_ring * pring, struct lpfc_iocbq * iocbq) | |
6311 | { | |
6312 | IOCB_t *icmd; | |
6313 | uint16_t evt_code; | |
6314 | uint16_t temp; | |
6315 | struct temp_event temp_event_data; | |
6316 | struct Scsi_Host *shost; | |
a257bf90 | 6317 | uint32_t *iocb_w; |
57127f15 JS |
6318 | |
6319 | icmd = &iocbq->iocb; | |
6320 | evt_code = icmd->un.asyncstat.evt_code; | |
6321 | temp = icmd->ulpContext; | |
6322 | ||
6323 | if ((evt_code != ASYNC_TEMP_WARN) && | |
6324 | (evt_code != ASYNC_TEMP_SAFE)) { | |
a257bf90 | 6325 | iocb_w = (uint32_t *) icmd; |
57127f15 JS |
6326 | lpfc_printf_log(phba, |
6327 | KERN_ERR, | |
6328 | LOG_SLI, | |
76bb24ef | 6329 | "0346 Ring %d handler: unexpected ASYNC_STATUS" |
a257bf90 JS |
6330 | " evt_code 0x%x \n" |
6331 | "W0 0x%08x W1 0x%08x W2 0x%08x W3 0x%08x\n" | |
6332 | "W4 0x%08x W5 0x%08x W6 0x%08x W7 0x%08x\n" | |
6333 | "W8 0x%08x W9 0x%08x W10 0x%08x W11 0x%08x\n" | |
6334 | "W12 0x%08x W13 0x%08x W14 0x%08x W15 0x%08x\n", | |
57127f15 | 6335 | pring->ringno, |
a257bf90 JS |
6336 | icmd->un.asyncstat.evt_code, |
6337 | iocb_w[0], iocb_w[1], iocb_w[2], iocb_w[3], | |
6338 | iocb_w[4], iocb_w[5], iocb_w[6], iocb_w[7], | |
6339 | iocb_w[8], iocb_w[9], iocb_w[10], iocb_w[11], | |
6340 | iocb_w[12], iocb_w[13], iocb_w[14], iocb_w[15]); | |
6341 | ||
57127f15 JS |
6342 | return; |
6343 | } | |
6344 | temp_event_data.data = (uint32_t)temp; | |
6345 | temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT; | |
6346 | if (evt_code == ASYNC_TEMP_WARN) { | |
6347 | temp_event_data.event_code = LPFC_THRESHOLD_TEMP; | |
6348 | lpfc_printf_log(phba, | |
09372820 | 6349 | KERN_ERR, |
57127f15 | 6350 | LOG_TEMP, |
76bb24ef | 6351 | "0347 Adapter is very hot, please take " |
57127f15 JS |
6352 | "corrective action. temperature : %d Celsius\n", |
6353 | temp); | |
6354 | } | |
6355 | if (evt_code == ASYNC_TEMP_SAFE) { | |
6356 | temp_event_data.event_code = LPFC_NORMAL_TEMP; | |
6357 | lpfc_printf_log(phba, | |
09372820 | 6358 | KERN_ERR, |
57127f15 JS |
6359 | LOG_TEMP, |
6360 | "0340 Adapter temperature is OK now. " | |
6361 | "temperature : %d Celsius\n", | |
6362 | temp); | |
6363 | } | |
6364 | ||
6365 | /* Send temperature change event to applications */ | |
6366 | shost = lpfc_shost_from_vport(phba->pport); | |
6367 | fc_host_post_vendor_event(shost, fc_get_event_number(), | |
6368 | sizeof(temp_event_data), (char *) &temp_event_data, | |
ddcc50f0 | 6369 | LPFC_NL_VENDOR_ID); |
57127f15 JS |
6370 | |
6371 | } | |
6372 | ||
6373 | ||
e59058c4 | 6374 | /** |
3621a710 | 6375 | * lpfc_sli_setup - SLI ring setup function |
e59058c4 JS |
6376 | * @phba: Pointer to HBA context object. |
6377 | * | |
6378 | * lpfc_sli_setup sets up rings of the SLI interface with | |
6379 | * number of iocbs per ring and iotags. This function is | |
6380 | * called while driver attach to the HBA and before the | |
6381 | * interrupts are enabled. So there is no need for locking. | |
6382 | * | |
6383 | * This function always returns 0. | |
6384 | **/ | |
dea3101e | 6385 | int |
6386 | lpfc_sli_setup(struct lpfc_hba *phba) | |
6387 | { | |
ed957684 | 6388 | int i, totiocbsize = 0; |
dea3101e | 6389 | struct lpfc_sli *psli = &phba->sli; |
6390 | struct lpfc_sli_ring *pring; | |
6391 | ||
6392 | psli->num_rings = MAX_CONFIGURED_RINGS; | |
6393 | psli->sli_flag = 0; | |
6394 | psli->fcp_ring = LPFC_FCP_RING; | |
6395 | psli->next_ring = LPFC_FCP_NEXT_RING; | |
a4bc3379 | 6396 | psli->extra_ring = LPFC_EXTRA_RING; |
dea3101e | 6397 | |
604a3e30 JB |
6398 | psli->iocbq_lookup = NULL; |
6399 | psli->iocbq_lookup_len = 0; | |
6400 | psli->last_iotag = 0; | |
6401 | ||
dea3101e | 6402 | for (i = 0; i < psli->num_rings; i++) { |
6403 | pring = &psli->ring[i]; | |
6404 | switch (i) { | |
6405 | case LPFC_FCP_RING: /* ring 0 - FCP */ | |
6406 | /* numCiocb and numRiocb are used in config_port */ | |
6407 | pring->numCiocb = SLI2_IOCB_CMD_R0_ENTRIES; | |
6408 | pring->numRiocb = SLI2_IOCB_RSP_R0_ENTRIES; | |
6409 | pring->numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES; | |
6410 | pring->numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES; | |
6411 | pring->numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES; | |
6412 | pring->numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES; | |
ed957684 | 6413 | pring->sizeCiocb = (phba->sli_rev == 3) ? |
92d7f7b0 JS |
6414 | SLI3_IOCB_CMD_SIZE : |
6415 | SLI2_IOCB_CMD_SIZE; | |
ed957684 | 6416 | pring->sizeRiocb = (phba->sli_rev == 3) ? |
92d7f7b0 JS |
6417 | SLI3_IOCB_RSP_SIZE : |
6418 | SLI2_IOCB_RSP_SIZE; | |
dea3101e | 6419 | pring->iotag_ctr = 0; |
6420 | pring->iotag_max = | |
92d7f7b0 | 6421 | (phba->cfg_hba_queue_depth * 2); |
dea3101e | 6422 | pring->fast_iotag = pring->iotag_max; |
6423 | pring->num_mask = 0; | |
6424 | break; | |
a4bc3379 | 6425 | case LPFC_EXTRA_RING: /* ring 1 - EXTRA */ |
dea3101e | 6426 | /* numCiocb and numRiocb are used in config_port */ |
6427 | pring->numCiocb = SLI2_IOCB_CMD_R1_ENTRIES; | |
6428 | pring->numRiocb = SLI2_IOCB_RSP_R1_ENTRIES; | |
ed957684 | 6429 | pring->sizeCiocb = (phba->sli_rev == 3) ? |
92d7f7b0 JS |
6430 | SLI3_IOCB_CMD_SIZE : |
6431 | SLI2_IOCB_CMD_SIZE; | |
ed957684 | 6432 | pring->sizeRiocb = (phba->sli_rev == 3) ? |
92d7f7b0 JS |
6433 | SLI3_IOCB_RSP_SIZE : |
6434 | SLI2_IOCB_RSP_SIZE; | |
2e0fef85 | 6435 | pring->iotag_max = phba->cfg_hba_queue_depth; |
dea3101e | 6436 | pring->num_mask = 0; |
6437 | break; | |
6438 | case LPFC_ELS_RING: /* ring 2 - ELS / CT */ | |
6439 | /* numCiocb and numRiocb are used in config_port */ | |
6440 | pring->numCiocb = SLI2_IOCB_CMD_R2_ENTRIES; | |
6441 | pring->numRiocb = SLI2_IOCB_RSP_R2_ENTRIES; | |
ed957684 | 6442 | pring->sizeCiocb = (phba->sli_rev == 3) ? |
92d7f7b0 JS |
6443 | SLI3_IOCB_CMD_SIZE : |
6444 | SLI2_IOCB_CMD_SIZE; | |
ed957684 | 6445 | pring->sizeRiocb = (phba->sli_rev == 3) ? |
92d7f7b0 JS |
6446 | SLI3_IOCB_RSP_SIZE : |
6447 | SLI2_IOCB_RSP_SIZE; | |
dea3101e | 6448 | pring->fast_iotag = 0; |
6449 | pring->iotag_ctr = 0; | |
6450 | pring->iotag_max = 4096; | |
57127f15 JS |
6451 | pring->lpfc_sli_rcv_async_status = |
6452 | lpfc_sli_async_event_handler; | |
dea3101e | 6453 | pring->num_mask = 4; |
6454 | pring->prt[0].profile = 0; /* Mask 0 */ | |
6455 | pring->prt[0].rctl = FC_ELS_REQ; | |
6456 | pring->prt[0].type = FC_ELS_DATA; | |
6457 | pring->prt[0].lpfc_sli_rcv_unsol_event = | |
92d7f7b0 | 6458 | lpfc_els_unsol_event; |
dea3101e | 6459 | pring->prt[1].profile = 0; /* Mask 1 */ |
6460 | pring->prt[1].rctl = FC_ELS_RSP; | |
6461 | pring->prt[1].type = FC_ELS_DATA; | |
6462 | pring->prt[1].lpfc_sli_rcv_unsol_event = | |
92d7f7b0 | 6463 | lpfc_els_unsol_event; |
dea3101e | 6464 | pring->prt[2].profile = 0; /* Mask 2 */ |
6465 | /* NameServer Inquiry */ | |
6466 | pring->prt[2].rctl = FC_UNSOL_CTL; | |
6467 | /* NameServer */ | |
6468 | pring->prt[2].type = FC_COMMON_TRANSPORT_ULP; | |
6469 | pring->prt[2].lpfc_sli_rcv_unsol_event = | |
92d7f7b0 | 6470 | lpfc_ct_unsol_event; |
dea3101e | 6471 | pring->prt[3].profile = 0; /* Mask 3 */ |
6472 | /* NameServer response */ | |
6473 | pring->prt[3].rctl = FC_SOL_CTL; | |
6474 | /* NameServer */ | |
6475 | pring->prt[3].type = FC_COMMON_TRANSPORT_ULP; | |
6476 | pring->prt[3].lpfc_sli_rcv_unsol_event = | |
92d7f7b0 | 6477 | lpfc_ct_unsol_event; |
dea3101e | 6478 | break; |
6479 | } | |
ed957684 | 6480 | totiocbsize += (pring->numCiocb * pring->sizeCiocb) + |
92d7f7b0 | 6481 | (pring->numRiocb * pring->sizeRiocb); |
dea3101e | 6482 | } |
ed957684 | 6483 | if (totiocbsize > MAX_SLIM_IOCB_SIZE) { |
dea3101e | 6484 | /* Too many cmd / rsp ring entries in SLI2 SLIM */ |
e8b62011 JS |
6485 | printk(KERN_ERR "%d:0462 Too many cmd / rsp ring entries in " |
6486 | "SLI2 SLIM Data: x%x x%lx\n", | |
6487 | phba->brd_no, totiocbsize, | |
6488 | (unsigned long) MAX_SLIM_IOCB_SIZE); | |
dea3101e | 6489 | } |
cf5bf97e JW |
6490 | if (phba->cfg_multi_ring_support == 2) |
6491 | lpfc_extra_ring_setup(phba); | |
dea3101e | 6492 | |
6493 | return 0; | |
6494 | } | |
6495 | ||
e59058c4 | 6496 | /** |
3621a710 | 6497 | * lpfc_sli_queue_setup - Queue initialization function |
e59058c4 JS |
6498 | * @phba: Pointer to HBA context object. |
6499 | * | |
6500 | * lpfc_sli_queue_setup sets up mailbox queues and iocb queues for each | |
6501 | * ring. This function also initializes ring indices of each ring. | |
6502 | * This function is called during the initialization of the SLI | |
6503 | * interface of an HBA. | |
6504 | * This function is called with no lock held and always returns | |
6505 | * 1. | |
6506 | **/ | |
dea3101e | 6507 | int |
2e0fef85 | 6508 | lpfc_sli_queue_setup(struct lpfc_hba *phba) |
dea3101e | 6509 | { |
6510 | struct lpfc_sli *psli; | |
6511 | struct lpfc_sli_ring *pring; | |
604a3e30 | 6512 | int i; |
dea3101e | 6513 | |
6514 | psli = &phba->sli; | |
2e0fef85 | 6515 | spin_lock_irq(&phba->hbalock); |
dea3101e | 6516 | INIT_LIST_HEAD(&psli->mboxq); |
92d7f7b0 | 6517 | INIT_LIST_HEAD(&psli->mboxq_cmpl); |
dea3101e | 6518 | /* Initialize list headers for txq and txcmplq as double linked lists */ |
6519 | for (i = 0; i < psli->num_rings; i++) { | |
6520 | pring = &psli->ring[i]; | |
6521 | pring->ringno = i; | |
6522 | pring->next_cmdidx = 0; | |
6523 | pring->local_getidx = 0; | |
6524 | pring->cmdidx = 0; | |
6525 | INIT_LIST_HEAD(&pring->txq); | |
6526 | INIT_LIST_HEAD(&pring->txcmplq); | |
6527 | INIT_LIST_HEAD(&pring->iocb_continueq); | |
9c2face6 | 6528 | INIT_LIST_HEAD(&pring->iocb_continue_saveq); |
dea3101e | 6529 | INIT_LIST_HEAD(&pring->postbufq); |
dea3101e | 6530 | } |
2e0fef85 JS |
6531 | spin_unlock_irq(&phba->hbalock); |
6532 | return 1; | |
dea3101e | 6533 | } |
6534 | ||
04c68496 JS |
6535 | /** |
6536 | * lpfc_sli_mbox_sys_flush - Flush mailbox command sub-system | |
6537 | * @phba: Pointer to HBA context object. | |
6538 | * | |
6539 | * This routine flushes the mailbox command subsystem. It will unconditionally | |
6540 | * flush all the mailbox commands in the three possible stages in the mailbox | |
6541 | * command sub-system: pending mailbox command queue; the outstanding mailbox | |
6542 | * command; and completed mailbox command queue. It is caller's responsibility | |
6543 | * to make sure that the driver is in the proper state to flush the mailbox | |
6544 | * command sub-system. Namely, the posting of mailbox commands into the | |
6545 | * pending mailbox command queue from the various clients must be stopped; | |
6546 | * either the HBA is in a state that it will never works on the outstanding | |
6547 | * mailbox command (such as in EEH or ERATT conditions) or the outstanding | |
6548 | * mailbox command has been completed. | |
6549 | **/ | |
6550 | static void | |
6551 | lpfc_sli_mbox_sys_flush(struct lpfc_hba *phba) | |
6552 | { | |
6553 | LIST_HEAD(completions); | |
6554 | struct lpfc_sli *psli = &phba->sli; | |
6555 | LPFC_MBOXQ_t *pmb; | |
6556 | unsigned long iflag; | |
6557 | ||
6558 | /* Flush all the mailbox commands in the mbox system */ | |
6559 | spin_lock_irqsave(&phba->hbalock, iflag); | |
6560 | /* The pending mailbox command queue */ | |
6561 | list_splice_init(&phba->sli.mboxq, &completions); | |
6562 | /* The outstanding active mailbox command */ | |
6563 | if (psli->mbox_active) { | |
6564 | list_add_tail(&psli->mbox_active->list, &completions); | |
6565 | psli->mbox_active = NULL; | |
6566 | psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; | |
6567 | } | |
6568 | /* The completed mailbox command queue */ | |
6569 | list_splice_init(&phba->sli.mboxq_cmpl, &completions); | |
6570 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
6571 | ||
6572 | /* Return all flushed mailbox commands with MBX_NOT_FINISHED status */ | |
6573 | while (!list_empty(&completions)) { | |
6574 | list_remove_head(&completions, pmb, LPFC_MBOXQ_t, list); | |
6575 | pmb->u.mb.mbxStatus = MBX_NOT_FINISHED; | |
6576 | if (pmb->mbox_cmpl) | |
6577 | pmb->mbox_cmpl(phba, pmb); | |
6578 | } | |
6579 | } | |
6580 | ||
e59058c4 | 6581 | /** |
3621a710 | 6582 | * lpfc_sli_host_down - Vport cleanup function |
e59058c4 JS |
6583 | * @vport: Pointer to virtual port object. |
6584 | * | |
6585 | * lpfc_sli_host_down is called to clean up the resources | |
6586 | * associated with a vport before destroying virtual | |
6587 | * port data structures. | |
6588 | * This function does following operations: | |
6589 | * - Free discovery resources associated with this virtual | |
6590 | * port. | |
6591 | * - Free iocbs associated with this virtual port in | |
6592 | * the txq. | |
6593 | * - Send abort for all iocb commands associated with this | |
6594 | * vport in txcmplq. | |
6595 | * | |
6596 | * This function is called with no lock held and always returns 1. | |
6597 | **/ | |
92d7f7b0 JS |
6598 | int |
6599 | lpfc_sli_host_down(struct lpfc_vport *vport) | |
6600 | { | |
858c9f6c | 6601 | LIST_HEAD(completions); |
92d7f7b0 JS |
6602 | struct lpfc_hba *phba = vport->phba; |
6603 | struct lpfc_sli *psli = &phba->sli; | |
6604 | struct lpfc_sli_ring *pring; | |
6605 | struct lpfc_iocbq *iocb, *next_iocb; | |
92d7f7b0 JS |
6606 | int i; |
6607 | unsigned long flags = 0; | |
6608 | uint16_t prev_pring_flag; | |
6609 | ||
6610 | lpfc_cleanup_discovery_resources(vport); | |
6611 | ||
6612 | spin_lock_irqsave(&phba->hbalock, flags); | |
92d7f7b0 JS |
6613 | for (i = 0; i < psli->num_rings; i++) { |
6614 | pring = &psli->ring[i]; | |
6615 | prev_pring_flag = pring->flag; | |
5e9d9b82 JS |
6616 | /* Only slow rings */ |
6617 | if (pring->ringno == LPFC_ELS_RING) { | |
858c9f6c | 6618 | pring->flag |= LPFC_DEFERRED_RING_EVENT; |
5e9d9b82 JS |
6619 | /* Set the lpfc data pending flag */ |
6620 | set_bit(LPFC_DATA_READY, &phba->data_flags); | |
6621 | } | |
92d7f7b0 JS |
6622 | /* |
6623 | * Error everything on the txq since these iocbs have not been | |
6624 | * given to the FW yet. | |
6625 | */ | |
92d7f7b0 JS |
6626 | list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) { |
6627 | if (iocb->vport != vport) | |
6628 | continue; | |
858c9f6c | 6629 | list_move_tail(&iocb->list, &completions); |
92d7f7b0 | 6630 | pring->txq_cnt--; |
92d7f7b0 JS |
6631 | } |
6632 | ||
6633 | /* Next issue ABTS for everything on the txcmplq */ | |
6634 | list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, | |
6635 | list) { | |
6636 | if (iocb->vport != vport) | |
6637 | continue; | |
6638 | lpfc_sli_issue_abort_iotag(phba, pring, iocb); | |
6639 | } | |
6640 | ||
6641 | pring->flag = prev_pring_flag; | |
6642 | } | |
6643 | ||
6644 | spin_unlock_irqrestore(&phba->hbalock, flags); | |
6645 | ||
a257bf90 JS |
6646 | /* Cancel all the IOCBs from the completions list */ |
6647 | lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, | |
6648 | IOERR_SLI_DOWN); | |
92d7f7b0 JS |
6649 | return 1; |
6650 | } | |
6651 | ||
e59058c4 | 6652 | /** |
3621a710 | 6653 | * lpfc_sli_hba_down - Resource cleanup function for the HBA |
e59058c4 JS |
6654 | * @phba: Pointer to HBA context object. |
6655 | * | |
6656 | * This function cleans up all iocb, buffers, mailbox commands | |
6657 | * while shutting down the HBA. This function is called with no | |
6658 | * lock held and always returns 1. | |
6659 | * This function does the following to cleanup driver resources: | |
6660 | * - Free discovery resources for each virtual port | |
6661 | * - Cleanup any pending fabric iocbs | |
6662 | * - Iterate through the iocb txq and free each entry | |
6663 | * in the list. | |
6664 | * - Free up any buffer posted to the HBA | |
6665 | * - Free mailbox commands in the mailbox queue. | |
6666 | **/ | |
dea3101e | 6667 | int |
2e0fef85 | 6668 | lpfc_sli_hba_down(struct lpfc_hba *phba) |
dea3101e | 6669 | { |
2534ba75 | 6670 | LIST_HEAD(completions); |
2e0fef85 | 6671 | struct lpfc_sli *psli = &phba->sli; |
dea3101e | 6672 | struct lpfc_sli_ring *pring; |
0ff10d46 | 6673 | struct lpfc_dmabuf *buf_ptr; |
dea3101e | 6674 | unsigned long flags = 0; |
04c68496 JS |
6675 | int i; |
6676 | ||
6677 | /* Shutdown the mailbox command sub-system */ | |
6678 | lpfc_sli_mbox_sys_shutdown(phba); | |
dea3101e | 6679 | |
dea3101e | 6680 | lpfc_hba_down_prep(phba); |
6681 | ||
92d7f7b0 JS |
6682 | lpfc_fabric_abort_hba(phba); |
6683 | ||
2e0fef85 | 6684 | spin_lock_irqsave(&phba->hbalock, flags); |
dea3101e | 6685 | for (i = 0; i < psli->num_rings; i++) { |
6686 | pring = &psli->ring[i]; | |
5e9d9b82 JS |
6687 | /* Only slow rings */ |
6688 | if (pring->ringno == LPFC_ELS_RING) { | |
858c9f6c | 6689 | pring->flag |= LPFC_DEFERRED_RING_EVENT; |
5e9d9b82 JS |
6690 | /* Set the lpfc data pending flag */ |
6691 | set_bit(LPFC_DATA_READY, &phba->data_flags); | |
6692 | } | |
dea3101e | 6693 | |
6694 | /* | |
6695 | * Error everything on the txq since these iocbs have not been | |
6696 | * given to the FW yet. | |
6697 | */ | |
2534ba75 | 6698 | list_splice_init(&pring->txq, &completions); |
dea3101e | 6699 | pring->txq_cnt = 0; |
6700 | ||
2534ba75 | 6701 | } |
2e0fef85 | 6702 | spin_unlock_irqrestore(&phba->hbalock, flags); |
dea3101e | 6703 | |
a257bf90 JS |
6704 | /* Cancel all the IOCBs from the completions list */ |
6705 | lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT, | |
6706 | IOERR_SLI_DOWN); | |
dea3101e | 6707 | |
0ff10d46 JS |
6708 | spin_lock_irqsave(&phba->hbalock, flags); |
6709 | list_splice_init(&phba->elsbuf, &completions); | |
6710 | phba->elsbuf_cnt = 0; | |
6711 | phba->elsbuf_prev_cnt = 0; | |
6712 | spin_unlock_irqrestore(&phba->hbalock, flags); | |
6713 | ||
6714 | while (!list_empty(&completions)) { | |
6715 | list_remove_head(&completions, buf_ptr, | |
6716 | struct lpfc_dmabuf, list); | |
6717 | lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); | |
6718 | kfree(buf_ptr); | |
6719 | } | |
6720 | ||
dea3101e | 6721 | /* Return any active mbox cmds */ |
6722 | del_timer_sync(&psli->mbox_tmo); | |
2e0fef85 | 6723 | |
da0436e9 | 6724 | spin_lock_irqsave(&phba->pport->work_port_lock, flags); |
2e0fef85 | 6725 | phba->pport->work_port_events &= ~WORKER_MBOX_TMO; |
da0436e9 | 6726 | spin_unlock_irqrestore(&phba->pport->work_port_lock, flags); |
2e0fef85 | 6727 | |
da0436e9 JS |
6728 | return 1; |
6729 | } | |
6730 | ||
6731 | /** | |
6732 | * lpfc_sli4_hba_down - PCI function resource cleanup for the SLI4 HBA | |
6733 | * @phba: Pointer to HBA context object. | |
6734 | * | |
6735 | * This function cleans up all queues, iocb, buffers, mailbox commands while | |
6736 | * shutting down the SLI4 HBA FCoE function. This function is called with no | |
6737 | * lock held and always returns 1. | |
6738 | * | |
6739 | * This function does the following to cleanup driver FCoE function resources: | |
6740 | * - Free discovery resources for each virtual port | |
6741 | * - Cleanup any pending fabric iocbs | |
6742 | * - Iterate through the iocb txq and free each entry in the list. | |
6743 | * - Free up any buffer posted to the HBA. | |
6744 | * - Clean up all the queue entries: WQ, RQ, MQ, EQ, CQ, etc. | |
6745 | * - Free mailbox commands in the mailbox queue. | |
6746 | **/ | |
6747 | int | |
6748 | lpfc_sli4_hba_down(struct lpfc_hba *phba) | |
6749 | { | |
6750 | /* Stop the SLI4 device port */ | |
6751 | lpfc_stop_port(phba); | |
6752 | ||
6753 | /* Tear down the queues in the HBA */ | |
6754 | lpfc_sli4_queue_unset(phba); | |
6755 | ||
6756 | /* unregister default FCFI from the HBA */ | |
6757 | lpfc_sli4_fcfi_unreg(phba, phba->fcf.fcfi); | |
92d7f7b0 | 6758 | |
dea3101e | 6759 | return 1; |
6760 | } | |
6761 | ||
e59058c4 | 6762 | /** |
3621a710 | 6763 | * lpfc_sli_pcimem_bcopy - SLI memory copy function |
e59058c4 JS |
6764 | * @srcp: Source memory pointer. |
6765 | * @destp: Destination memory pointer. | |
6766 | * @cnt: Number of words required to be copied. | |
6767 | * | |
6768 | * This function is used for copying data between driver memory | |
6769 | * and the SLI memory. This function also changes the endianness | |
6770 | * of each word if native endianness is different from SLI | |
6771 | * endianness. This function can be called with or without | |
6772 | * lock. | |
6773 | **/ | |
dea3101e | 6774 | void |
6775 | lpfc_sli_pcimem_bcopy(void *srcp, void *destp, uint32_t cnt) | |
6776 | { | |
6777 | uint32_t *src = srcp; | |
6778 | uint32_t *dest = destp; | |
6779 | uint32_t ldata; | |
6780 | int i; | |
6781 | ||
6782 | for (i = 0; i < (int)cnt; i += sizeof (uint32_t)) { | |
6783 | ldata = *src; | |
6784 | ldata = le32_to_cpu(ldata); | |
6785 | *dest = ldata; | |
6786 | src++; | |
6787 | dest++; | |
6788 | } | |
6789 | } | |
6790 | ||
e59058c4 JS |
6791 | |
6792 | /** | |
3621a710 | 6793 | * lpfc_sli_ringpostbuf_put - Function to add a buffer to postbufq |
e59058c4 JS |
6794 | * @phba: Pointer to HBA context object. |
6795 | * @pring: Pointer to driver SLI ring object. | |
6796 | * @mp: Pointer to driver buffer object. | |
6797 | * | |
6798 | * This function is called with no lock held. | |
6799 | * It always return zero after adding the buffer to the postbufq | |
6800 | * buffer list. | |
6801 | **/ | |
dea3101e | 6802 | int |
2e0fef85 JS |
6803 | lpfc_sli_ringpostbuf_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, |
6804 | struct lpfc_dmabuf *mp) | |
dea3101e | 6805 | { |
6806 | /* Stick struct lpfc_dmabuf at end of postbufq so driver can look it up | |
6807 | later */ | |
2e0fef85 | 6808 | spin_lock_irq(&phba->hbalock); |
dea3101e | 6809 | list_add_tail(&mp->list, &pring->postbufq); |
dea3101e | 6810 | pring->postbufq_cnt++; |
2e0fef85 | 6811 | spin_unlock_irq(&phba->hbalock); |
dea3101e | 6812 | return 0; |
6813 | } | |
6814 | ||
e59058c4 | 6815 | /** |
3621a710 | 6816 | * lpfc_sli_get_buffer_tag - allocates a tag for a CMD_QUE_XRI64_CX buffer |
e59058c4 JS |
6817 | * @phba: Pointer to HBA context object. |
6818 | * | |
6819 | * When HBQ is enabled, buffers are searched based on tags. This function | |
6820 | * allocates a tag for buffer posted using CMD_QUE_XRI64_CX iocb. The | |
6821 | * tag is bit wise or-ed with QUE_BUFTAG_BIT to make sure that the tag | |
6822 | * does not conflict with tags of buffer posted for unsolicited events. | |
6823 | * The function returns the allocated tag. The function is called with | |
6824 | * no locks held. | |
6825 | **/ | |
76bb24ef JS |
6826 | uint32_t |
6827 | lpfc_sli_get_buffer_tag(struct lpfc_hba *phba) | |
6828 | { | |
6829 | spin_lock_irq(&phba->hbalock); | |
6830 | phba->buffer_tag_count++; | |
6831 | /* | |
6832 | * Always set the QUE_BUFTAG_BIT to distiguish between | |
6833 | * a tag assigned by HBQ. | |
6834 | */ | |
6835 | phba->buffer_tag_count |= QUE_BUFTAG_BIT; | |
6836 | spin_unlock_irq(&phba->hbalock); | |
6837 | return phba->buffer_tag_count; | |
6838 | } | |
6839 | ||
e59058c4 | 6840 | /** |
3621a710 | 6841 | * lpfc_sli_ring_taggedbuf_get - find HBQ buffer associated with given tag |
e59058c4 JS |
6842 | * @phba: Pointer to HBA context object. |
6843 | * @pring: Pointer to driver SLI ring object. | |
6844 | * @tag: Buffer tag. | |
6845 | * | |
6846 | * Buffers posted using CMD_QUE_XRI64_CX iocb are in pring->postbufq | |
6847 | * list. After HBA DMA data to these buffers, CMD_IOCB_RET_XRI64_CX | |
6848 | * iocb is posted to the response ring with the tag of the buffer. | |
6849 | * This function searches the pring->postbufq list using the tag | |
6850 | * to find buffer associated with CMD_IOCB_RET_XRI64_CX | |
6851 | * iocb. If the buffer is found then lpfc_dmabuf object of the | |
6852 | * buffer is returned to the caller else NULL is returned. | |
6853 | * This function is called with no lock held. | |
6854 | **/ | |
76bb24ef JS |
6855 | struct lpfc_dmabuf * |
6856 | lpfc_sli_ring_taggedbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
6857 | uint32_t tag) | |
6858 | { | |
6859 | struct lpfc_dmabuf *mp, *next_mp; | |
6860 | struct list_head *slp = &pring->postbufq; | |
6861 | ||
6862 | /* Search postbufq, from the begining, looking for a match on tag */ | |
6863 | spin_lock_irq(&phba->hbalock); | |
6864 | list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) { | |
6865 | if (mp->buffer_tag == tag) { | |
6866 | list_del_init(&mp->list); | |
6867 | pring->postbufq_cnt--; | |
6868 | spin_unlock_irq(&phba->hbalock); | |
6869 | return mp; | |
6870 | } | |
6871 | } | |
6872 | ||
6873 | spin_unlock_irq(&phba->hbalock); | |
6874 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
d7c255b2 | 6875 | "0402 Cannot find virtual addr for buffer tag on " |
76bb24ef JS |
6876 | "ring %d Data x%lx x%p x%p x%x\n", |
6877 | pring->ringno, (unsigned long) tag, | |
6878 | slp->next, slp->prev, pring->postbufq_cnt); | |
6879 | ||
6880 | return NULL; | |
6881 | } | |
dea3101e | 6882 | |
e59058c4 | 6883 | /** |
3621a710 | 6884 | * lpfc_sli_ringpostbuf_get - search buffers for unsolicited CT and ELS events |
e59058c4 JS |
6885 | * @phba: Pointer to HBA context object. |
6886 | * @pring: Pointer to driver SLI ring object. | |
6887 | * @phys: DMA address of the buffer. | |
6888 | * | |
6889 | * This function searches the buffer list using the dma_address | |
6890 | * of unsolicited event to find the driver's lpfc_dmabuf object | |
6891 | * corresponding to the dma_address. The function returns the | |
6892 | * lpfc_dmabuf object if a buffer is found else it returns NULL. | |
6893 | * This function is called by the ct and els unsolicited event | |
6894 | * handlers to get the buffer associated with the unsolicited | |
6895 | * event. | |
6896 | * | |
6897 | * This function is called with no lock held. | |
6898 | **/ | |
dea3101e | 6899 | struct lpfc_dmabuf * |
6900 | lpfc_sli_ringpostbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, | |
6901 | dma_addr_t phys) | |
6902 | { | |
6903 | struct lpfc_dmabuf *mp, *next_mp; | |
6904 | struct list_head *slp = &pring->postbufq; | |
6905 | ||
6906 | /* Search postbufq, from the begining, looking for a match on phys */ | |
2e0fef85 | 6907 | spin_lock_irq(&phba->hbalock); |
dea3101e | 6908 | list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) { |
6909 | if (mp->phys == phys) { | |
6910 | list_del_init(&mp->list); | |
6911 | pring->postbufq_cnt--; | |
2e0fef85 | 6912 | spin_unlock_irq(&phba->hbalock); |
dea3101e | 6913 | return mp; |
6914 | } | |
6915 | } | |
6916 | ||
2e0fef85 | 6917 | spin_unlock_irq(&phba->hbalock); |
dea3101e | 6918 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
e8b62011 | 6919 | "0410 Cannot find virtual addr for mapped buf on " |
dea3101e | 6920 | "ring %d Data x%llx x%p x%p x%x\n", |
e8b62011 | 6921 | pring->ringno, (unsigned long long)phys, |
dea3101e | 6922 | slp->next, slp->prev, pring->postbufq_cnt); |
6923 | return NULL; | |
6924 | } | |
6925 | ||
e59058c4 | 6926 | /** |
3621a710 | 6927 | * lpfc_sli_abort_els_cmpl - Completion handler for the els abort iocbs |
e59058c4 JS |
6928 | * @phba: Pointer to HBA context object. |
6929 | * @cmdiocb: Pointer to driver command iocb object. | |
6930 | * @rspiocb: Pointer to driver response iocb object. | |
6931 | * | |
6932 | * This function is the completion handler for the abort iocbs for | |
6933 | * ELS commands. This function is called from the ELS ring event | |
6934 | * handler with no lock held. This function frees memory resources | |
6935 | * associated with the abort iocb. | |
6936 | **/ | |
dea3101e | 6937 | static void |
2e0fef85 JS |
6938 | lpfc_sli_abort_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
6939 | struct lpfc_iocbq *rspiocb) | |
dea3101e | 6940 | { |
2e0fef85 | 6941 | IOCB_t *irsp = &rspiocb->iocb; |
2680eeaa | 6942 | uint16_t abort_iotag, abort_context; |
92d7f7b0 | 6943 | struct lpfc_iocbq *abort_iocb; |
2680eeaa JS |
6944 | struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING]; |
6945 | ||
6946 | abort_iocb = NULL; | |
2680eeaa JS |
6947 | |
6948 | if (irsp->ulpStatus) { | |
6949 | abort_context = cmdiocb->iocb.un.acxri.abortContextTag; | |
6950 | abort_iotag = cmdiocb->iocb.un.acxri.abortIoTag; | |
6951 | ||
2e0fef85 | 6952 | spin_lock_irq(&phba->hbalock); |
2680eeaa JS |
6953 | if (abort_iotag != 0 && abort_iotag <= phba->sli.last_iotag) |
6954 | abort_iocb = phba->sli.iocbq_lookup[abort_iotag]; | |
6955 | ||
92d7f7b0 | 6956 | lpfc_printf_log(phba, KERN_INFO, LOG_ELS | LOG_SLI, |
e8b62011 | 6957 | "0327 Cannot abort els iocb %p " |
92d7f7b0 JS |
6958 | "with tag %x context %x, abort status %x, " |
6959 | "abort code %x\n", | |
e8b62011 JS |
6960 | abort_iocb, abort_iotag, abort_context, |
6961 | irsp->ulpStatus, irsp->un.ulpWord[4]); | |
2680eeaa | 6962 | |
58da1ffb JS |
6963 | /* |
6964 | * If the iocb is not found in Firmware queue the iocb | |
6965 | * might have completed already. Do not free it again. | |
6966 | */ | |
9b379605 | 6967 | if (irsp->ulpStatus == IOSTAT_LOCAL_REJECT) { |
58da1ffb JS |
6968 | spin_unlock_irq(&phba->hbalock); |
6969 | lpfc_sli_release_iocbq(phba, cmdiocb); | |
6970 | return; | |
6971 | } | |
2680eeaa JS |
6972 | /* |
6973 | * make sure we have the right iocbq before taking it | |
6974 | * off the txcmplq and try to call completion routine. | |
6975 | */ | |
2e0fef85 JS |
6976 | if (!abort_iocb || |
6977 | abort_iocb->iocb.ulpContext != abort_context || | |
6978 | (abort_iocb->iocb_flag & LPFC_DRIVER_ABORTED) == 0) | |
6979 | spin_unlock_irq(&phba->hbalock); | |
6980 | else { | |
92d7f7b0 | 6981 | list_del_init(&abort_iocb->list); |
2680eeaa | 6982 | pring->txcmplq_cnt--; |
2e0fef85 | 6983 | spin_unlock_irq(&phba->hbalock); |
2680eeaa | 6984 | |
0ff10d46 JS |
6985 | /* Firmware could still be in progress of DMAing |
6986 | * payload, so don't free data buffer till after | |
6987 | * a hbeat. | |
6988 | */ | |
6989 | abort_iocb->iocb_flag |= LPFC_DELAY_MEM_FREE; | |
6990 | ||
92d7f7b0 JS |
6991 | abort_iocb->iocb_flag &= ~LPFC_DRIVER_ABORTED; |
6992 | abort_iocb->iocb.ulpStatus = IOSTAT_LOCAL_REJECT; | |
6993 | abort_iocb->iocb.un.ulpWord[4] = IOERR_SLI_ABORTED; | |
6994 | (abort_iocb->iocb_cmpl)(phba, abort_iocb, abort_iocb); | |
2680eeaa JS |
6995 | } |
6996 | } | |
6997 | ||
604a3e30 | 6998 | lpfc_sli_release_iocbq(phba, cmdiocb); |
dea3101e | 6999 | return; |
7000 | } | |
7001 | ||
e59058c4 | 7002 | /** |
3621a710 | 7003 | * lpfc_ignore_els_cmpl - Completion handler for aborted ELS command |
e59058c4 JS |
7004 | * @phba: Pointer to HBA context object. |
7005 | * @cmdiocb: Pointer to driver command iocb object. | |
7006 | * @rspiocb: Pointer to driver response iocb object. | |
7007 | * | |
7008 | * The function is called from SLI ring event handler with no | |
7009 | * lock held. This function is the completion handler for ELS commands | |
7010 | * which are aborted. The function frees memory resources used for | |
7011 | * the aborted ELS commands. | |
7012 | **/ | |
92d7f7b0 JS |
7013 | static void |
7014 | lpfc_ignore_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, | |
7015 | struct lpfc_iocbq *rspiocb) | |
7016 | { | |
7017 | IOCB_t *irsp = &rspiocb->iocb; | |
7018 | ||
7019 | /* ELS cmd tag <ulpIoTag> completes */ | |
7020 | lpfc_printf_log(phba, KERN_INFO, LOG_ELS, | |
d7c255b2 | 7021 | "0139 Ignoring ELS cmd tag x%x completion Data: " |
92d7f7b0 | 7022 | "x%x x%x x%x\n", |
e8b62011 | 7023 | irsp->ulpIoTag, irsp->ulpStatus, |
92d7f7b0 | 7024 | irsp->un.ulpWord[4], irsp->ulpTimeout); |
858c9f6c JS |
7025 | if (cmdiocb->iocb.ulpCommand == CMD_GEN_REQUEST64_CR) |
7026 | lpfc_ct_free_iocb(phba, cmdiocb); | |
7027 | else | |
7028 | lpfc_els_free_iocb(phba, cmdiocb); | |
92d7f7b0 JS |
7029 | return; |
7030 | } | |
7031 | ||
e59058c4 | 7032 | /** |
3621a710 | 7033 | * lpfc_sli_issue_abort_iotag - Abort function for a command iocb |
e59058c4 JS |
7034 | * @phba: Pointer to HBA context object. |
7035 | * @pring: Pointer to driver SLI ring object. | |
7036 | * @cmdiocb: Pointer to driver command iocb object. | |
7037 | * | |
7038 | * This function issues an abort iocb for the provided command | |
7039 | * iocb. This function is called with hbalock held. | |
7040 | * The function returns 0 when it fails due to memory allocation | |
7041 | * failure or when the command iocb is an abort request. | |
7042 | **/ | |
dea3101e | 7043 | int |
2e0fef85 JS |
7044 | lpfc_sli_issue_abort_iotag(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, |
7045 | struct lpfc_iocbq *cmdiocb) | |
dea3101e | 7046 | { |
2e0fef85 | 7047 | struct lpfc_vport *vport = cmdiocb->vport; |
0bd4ca25 | 7048 | struct lpfc_iocbq *abtsiocbp; |
dea3101e | 7049 | IOCB_t *icmd = NULL; |
7050 | IOCB_t *iabt = NULL; | |
07951076 JS |
7051 | int retval = IOCB_ERROR; |
7052 | ||
92d7f7b0 JS |
7053 | /* |
7054 | * There are certain command types we don't want to abort. And we | |
7055 | * don't want to abort commands that are already in the process of | |
7056 | * being aborted. | |
07951076 JS |
7057 | */ |
7058 | icmd = &cmdiocb->iocb; | |
2e0fef85 | 7059 | if (icmd->ulpCommand == CMD_ABORT_XRI_CN || |
92d7f7b0 JS |
7060 | icmd->ulpCommand == CMD_CLOSE_XRI_CN || |
7061 | (cmdiocb->iocb_flag & LPFC_DRIVER_ABORTED) != 0) | |
07951076 JS |
7062 | return 0; |
7063 | ||
858c9f6c JS |
7064 | /* If we're unloading, don't abort iocb on the ELS ring, but change the |
7065 | * callback so that nothing happens when it finishes. | |
07951076 | 7066 | */ |
858c9f6c JS |
7067 | if ((vport->load_flag & FC_UNLOADING) && |
7068 | (pring->ringno == LPFC_ELS_RING)) { | |
92d7f7b0 JS |
7069 | if (cmdiocb->iocb_flag & LPFC_IO_FABRIC) |
7070 | cmdiocb->fabric_iocb_cmpl = lpfc_ignore_els_cmpl; | |
7071 | else | |
7072 | cmdiocb->iocb_cmpl = lpfc_ignore_els_cmpl; | |
07951076 | 7073 | goto abort_iotag_exit; |
92d7f7b0 | 7074 | } |
dea3101e | 7075 | |
7076 | /* issue ABTS for this IOCB based on iotag */ | |
92d7f7b0 | 7077 | abtsiocbp = __lpfc_sli_get_iocbq(phba); |
dea3101e | 7078 | if (abtsiocbp == NULL) |
7079 | return 0; | |
dea3101e | 7080 | |
07951076 JS |
7081 | /* This signals the response to set the correct status |
7082 | * before calling the completion handler. | |
7083 | */ | |
7084 | cmdiocb->iocb_flag |= LPFC_DRIVER_ABORTED; | |
7085 | ||
dea3101e | 7086 | iabt = &abtsiocbp->iocb; |
07951076 JS |
7087 | iabt->un.acxri.abortType = ABORT_TYPE_ABTS; |
7088 | iabt->un.acxri.abortContextTag = icmd->ulpContext; | |
da0436e9 JS |
7089 | if (phba->sli_rev == LPFC_SLI_REV4) |
7090 | iabt->un.acxri.abortIoTag = cmdiocb->sli4_xritag; | |
7091 | else | |
7092 | iabt->un.acxri.abortIoTag = icmd->ulpIoTag; | |
07951076 JS |
7093 | iabt->ulpLe = 1; |
7094 | iabt->ulpClass = icmd->ulpClass; | |
dea3101e | 7095 | |
2e0fef85 | 7096 | if (phba->link_state >= LPFC_LINK_UP) |
07951076 JS |
7097 | iabt->ulpCommand = CMD_ABORT_XRI_CN; |
7098 | else | |
7099 | iabt->ulpCommand = CMD_CLOSE_XRI_CN; | |
dea3101e | 7100 | |
07951076 | 7101 | abtsiocbp->iocb_cmpl = lpfc_sli_abort_els_cmpl; |
5b8bd0c9 | 7102 | |
e8b62011 JS |
7103 | lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI, |
7104 | "0339 Abort xri x%x, original iotag x%x, " | |
7105 | "abort cmd iotag x%x\n", | |
7106 | iabt->un.acxri.abortContextTag, | |
7107 | iabt->un.acxri.abortIoTag, abtsiocbp->iotag); | |
da0436e9 | 7108 | retval = __lpfc_sli_issue_iocb(phba, pring->ringno, abtsiocbp, 0); |
dea3101e | 7109 | |
d7c255b2 JS |
7110 | if (retval) |
7111 | __lpfc_sli_release_iocbq(phba, abtsiocbp); | |
07951076 | 7112 | abort_iotag_exit: |
2e0fef85 JS |
7113 | /* |
7114 | * Caller to this routine should check for IOCB_ERROR | |
7115 | * and handle it properly. This routine no longer removes | |
7116 | * iocb off txcmplq and call compl in case of IOCB_ERROR. | |
07951076 | 7117 | */ |
2e0fef85 | 7118 | return retval; |
dea3101e | 7119 | } |
7120 | ||
e59058c4 | 7121 | /** |
3621a710 | 7122 | * lpfc_sli_validate_fcp_iocb - find commands associated with a vport or LUN |
e59058c4 JS |
7123 | * @iocbq: Pointer to driver iocb object. |
7124 | * @vport: Pointer to driver virtual port object. | |
7125 | * @tgt_id: SCSI ID of the target. | |
7126 | * @lun_id: LUN ID of the scsi device. | |
7127 | * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST | |
7128 | * | |
3621a710 | 7129 | * This function acts as an iocb filter for functions which abort or count |
e59058c4 JS |
7130 | * all FCP iocbs pending on a lun/SCSI target/SCSI host. It will return |
7131 | * 0 if the filtering criteria is met for the given iocb and will return | |
7132 | * 1 if the filtering criteria is not met. | |
7133 | * If ctx_cmd == LPFC_CTX_LUN, the function returns 0 only if the | |
7134 | * given iocb is for the SCSI device specified by vport, tgt_id and | |
7135 | * lun_id parameter. | |
7136 | * If ctx_cmd == LPFC_CTX_TGT, the function returns 0 only if the | |
7137 | * given iocb is for the SCSI target specified by vport and tgt_id | |
7138 | * parameters. | |
7139 | * If ctx_cmd == LPFC_CTX_HOST, the function returns 0 only if the | |
7140 | * given iocb is for the SCSI host associated with the given vport. | |
7141 | * This function is called with no locks held. | |
7142 | **/ | |
dea3101e | 7143 | static int |
51ef4c26 JS |
7144 | lpfc_sli_validate_fcp_iocb(struct lpfc_iocbq *iocbq, struct lpfc_vport *vport, |
7145 | uint16_t tgt_id, uint64_t lun_id, | |
0bd4ca25 | 7146 | lpfc_ctx_cmd ctx_cmd) |
dea3101e | 7147 | { |
0bd4ca25 | 7148 | struct lpfc_scsi_buf *lpfc_cmd; |
dea3101e | 7149 | int rc = 1; |
7150 | ||
0bd4ca25 JSEC |
7151 | if (!(iocbq->iocb_flag & LPFC_IO_FCP)) |
7152 | return rc; | |
7153 | ||
51ef4c26 JS |
7154 | if (iocbq->vport != vport) |
7155 | return rc; | |
7156 | ||
0bd4ca25 | 7157 | lpfc_cmd = container_of(iocbq, struct lpfc_scsi_buf, cur_iocbq); |
0bd4ca25 | 7158 | |
495a714c | 7159 | if (lpfc_cmd->pCmd == NULL) |
dea3101e | 7160 | return rc; |
7161 | ||
7162 | switch (ctx_cmd) { | |
7163 | case LPFC_CTX_LUN: | |
495a714c JS |
7164 | if ((lpfc_cmd->rdata->pnode) && |
7165 | (lpfc_cmd->rdata->pnode->nlp_sid == tgt_id) && | |
7166 | (scsilun_to_int(&lpfc_cmd->fcp_cmnd->fcp_lun) == lun_id)) | |
dea3101e | 7167 | rc = 0; |
7168 | break; | |
7169 | case LPFC_CTX_TGT: | |
495a714c JS |
7170 | if ((lpfc_cmd->rdata->pnode) && |
7171 | (lpfc_cmd->rdata->pnode->nlp_sid == tgt_id)) | |
dea3101e | 7172 | rc = 0; |
7173 | break; | |
dea3101e | 7174 | case LPFC_CTX_HOST: |
7175 | rc = 0; | |
7176 | break; | |
7177 | default: | |
7178 | printk(KERN_ERR "%s: Unknown context cmd type, value %d\n", | |
cadbd4a5 | 7179 | __func__, ctx_cmd); |
dea3101e | 7180 | break; |
7181 | } | |
7182 | ||
7183 | return rc; | |
7184 | } | |
7185 | ||
e59058c4 | 7186 | /** |
3621a710 | 7187 | * lpfc_sli_sum_iocb - Function to count the number of FCP iocbs pending |
e59058c4 JS |
7188 | * @vport: Pointer to virtual port. |
7189 | * @tgt_id: SCSI ID of the target. | |
7190 | * @lun_id: LUN ID of the scsi device. | |
7191 | * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST. | |
7192 | * | |
7193 | * This function returns number of FCP commands pending for the vport. | |
7194 | * When ctx_cmd == LPFC_CTX_LUN, the function returns number of FCP | |
7195 | * commands pending on the vport associated with SCSI device specified | |
7196 | * by tgt_id and lun_id parameters. | |
7197 | * When ctx_cmd == LPFC_CTX_TGT, the function returns number of FCP | |
7198 | * commands pending on the vport associated with SCSI target specified | |
7199 | * by tgt_id parameter. | |
7200 | * When ctx_cmd == LPFC_CTX_HOST, the function returns number of FCP | |
7201 | * commands pending on the vport. | |
7202 | * This function returns the number of iocbs which satisfy the filter. | |
7203 | * This function is called without any lock held. | |
7204 | **/ | |
dea3101e | 7205 | int |
51ef4c26 JS |
7206 | lpfc_sli_sum_iocb(struct lpfc_vport *vport, uint16_t tgt_id, uint64_t lun_id, |
7207 | lpfc_ctx_cmd ctx_cmd) | |
dea3101e | 7208 | { |
51ef4c26 | 7209 | struct lpfc_hba *phba = vport->phba; |
0bd4ca25 JSEC |
7210 | struct lpfc_iocbq *iocbq; |
7211 | int sum, i; | |
dea3101e | 7212 | |
0bd4ca25 JSEC |
7213 | for (i = 1, sum = 0; i <= phba->sli.last_iotag; i++) { |
7214 | iocbq = phba->sli.iocbq_lookup[i]; | |
dea3101e | 7215 | |
51ef4c26 JS |
7216 | if (lpfc_sli_validate_fcp_iocb (iocbq, vport, tgt_id, lun_id, |
7217 | ctx_cmd) == 0) | |
0bd4ca25 | 7218 | sum++; |
dea3101e | 7219 | } |
0bd4ca25 | 7220 | |
dea3101e | 7221 | return sum; |
7222 | } | |
7223 | ||
e59058c4 | 7224 | /** |
3621a710 | 7225 | * lpfc_sli_abort_fcp_cmpl - Completion handler function for aborted FCP IOCBs |
e59058c4 JS |
7226 | * @phba: Pointer to HBA context object |
7227 | * @cmdiocb: Pointer to command iocb object. | |
7228 | * @rspiocb: Pointer to response iocb object. | |
7229 | * | |
7230 | * This function is called when an aborted FCP iocb completes. This | |
7231 | * function is called by the ring event handler with no lock held. | |
7232 | * This function frees the iocb. | |
7233 | **/ | |
5eb95af0 | 7234 | void |
2e0fef85 JS |
7235 | lpfc_sli_abort_fcp_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, |
7236 | struct lpfc_iocbq *rspiocb) | |
5eb95af0 | 7237 | { |
604a3e30 | 7238 | lpfc_sli_release_iocbq(phba, cmdiocb); |
5eb95af0 JSEC |
7239 | return; |
7240 | } | |
7241 | ||
e59058c4 | 7242 | /** |
3621a710 | 7243 | * lpfc_sli_abort_iocb - issue abort for all commands on a host/target/LUN |
e59058c4 JS |
7244 | * @vport: Pointer to virtual port. |
7245 | * @pring: Pointer to driver SLI ring object. | |
7246 | * @tgt_id: SCSI ID of the target. | |
7247 | * @lun_id: LUN ID of the scsi device. | |
7248 | * @abort_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST. | |
7249 | * | |
7250 | * This function sends an abort command for every SCSI command | |
7251 | * associated with the given virtual port pending on the ring | |
7252 | * filtered by lpfc_sli_validate_fcp_iocb function. | |
7253 | * When abort_cmd == LPFC_CTX_LUN, the function sends abort only to the | |
7254 | * FCP iocbs associated with lun specified by tgt_id and lun_id | |
7255 | * parameters | |
7256 | * When abort_cmd == LPFC_CTX_TGT, the function sends abort only to the | |
7257 | * FCP iocbs associated with SCSI target specified by tgt_id parameter. | |
7258 | * When abort_cmd == LPFC_CTX_HOST, the function sends abort to all | |
7259 | * FCP iocbs associated with virtual port. | |
7260 | * This function returns number of iocbs it failed to abort. | |
7261 | * This function is called with no locks held. | |
7262 | **/ | |
dea3101e | 7263 | int |
51ef4c26 JS |
7264 | lpfc_sli_abort_iocb(struct lpfc_vport *vport, struct lpfc_sli_ring *pring, |
7265 | uint16_t tgt_id, uint64_t lun_id, lpfc_ctx_cmd abort_cmd) | |
dea3101e | 7266 | { |
51ef4c26 | 7267 | struct lpfc_hba *phba = vport->phba; |
0bd4ca25 JSEC |
7268 | struct lpfc_iocbq *iocbq; |
7269 | struct lpfc_iocbq *abtsiocb; | |
dea3101e | 7270 | IOCB_t *cmd = NULL; |
dea3101e | 7271 | int errcnt = 0, ret_val = 0; |
0bd4ca25 | 7272 | int i; |
dea3101e | 7273 | |
0bd4ca25 JSEC |
7274 | for (i = 1; i <= phba->sli.last_iotag; i++) { |
7275 | iocbq = phba->sli.iocbq_lookup[i]; | |
dea3101e | 7276 | |
51ef4c26 | 7277 | if (lpfc_sli_validate_fcp_iocb(iocbq, vport, tgt_id, lun_id, |
2e0fef85 | 7278 | abort_cmd) != 0) |
dea3101e | 7279 | continue; |
7280 | ||
7281 | /* issue ABTS for this IOCB based on iotag */ | |
0bd4ca25 | 7282 | abtsiocb = lpfc_sli_get_iocbq(phba); |
dea3101e | 7283 | if (abtsiocb == NULL) { |
7284 | errcnt++; | |
7285 | continue; | |
7286 | } | |
dea3101e | 7287 | |
0bd4ca25 | 7288 | cmd = &iocbq->iocb; |
dea3101e | 7289 | abtsiocb->iocb.un.acxri.abortType = ABORT_TYPE_ABTS; |
7290 | abtsiocb->iocb.un.acxri.abortContextTag = cmd->ulpContext; | |
da0436e9 JS |
7291 | if (phba->sli_rev == LPFC_SLI_REV4) |
7292 | abtsiocb->iocb.un.acxri.abortIoTag = iocbq->sli4_xritag; | |
7293 | else | |
7294 | abtsiocb->iocb.un.acxri.abortIoTag = cmd->ulpIoTag; | |
dea3101e | 7295 | abtsiocb->iocb.ulpLe = 1; |
7296 | abtsiocb->iocb.ulpClass = cmd->ulpClass; | |
2e0fef85 | 7297 | abtsiocb->vport = phba->pport; |
dea3101e | 7298 | |
2e0fef85 | 7299 | if (lpfc_is_link_up(phba)) |
dea3101e | 7300 | abtsiocb->iocb.ulpCommand = CMD_ABORT_XRI_CN; |
7301 | else | |
7302 | abtsiocb->iocb.ulpCommand = CMD_CLOSE_XRI_CN; | |
7303 | ||
5eb95af0 JSEC |
7304 | /* Setup callback routine and issue the command. */ |
7305 | abtsiocb->iocb_cmpl = lpfc_sli_abort_fcp_cmpl; | |
da0436e9 JS |
7306 | ret_val = lpfc_sli_issue_iocb(phba, pring->ringno, |
7307 | abtsiocb, 0); | |
dea3101e | 7308 | if (ret_val == IOCB_ERROR) { |
604a3e30 | 7309 | lpfc_sli_release_iocbq(phba, abtsiocb); |
dea3101e | 7310 | errcnt++; |
7311 | continue; | |
7312 | } | |
7313 | } | |
7314 | ||
7315 | return errcnt; | |
7316 | } | |
7317 | ||
e59058c4 | 7318 | /** |
3621a710 | 7319 | * lpfc_sli_wake_iocb_wait - lpfc_sli_issue_iocb_wait's completion handler |
e59058c4 JS |
7320 | * @phba: Pointer to HBA context object. |
7321 | * @cmdiocbq: Pointer to command iocb. | |
7322 | * @rspiocbq: Pointer to response iocb. | |
7323 | * | |
7324 | * This function is the completion handler for iocbs issued using | |
7325 | * lpfc_sli_issue_iocb_wait function. This function is called by the | |
7326 | * ring event handler function without any lock held. This function | |
7327 | * can be called from both worker thread context and interrupt | |
7328 | * context. This function also can be called from other thread which | |
7329 | * cleans up the SLI layer objects. | |
7330 | * This function copy the contents of the response iocb to the | |
7331 | * response iocb memory object provided by the caller of | |
7332 | * lpfc_sli_issue_iocb_wait and then wakes up the thread which | |
7333 | * sleeps for the iocb completion. | |
7334 | **/ | |
68876920 JSEC |
7335 | static void |
7336 | lpfc_sli_wake_iocb_wait(struct lpfc_hba *phba, | |
7337 | struct lpfc_iocbq *cmdiocbq, | |
7338 | struct lpfc_iocbq *rspiocbq) | |
dea3101e | 7339 | { |
68876920 JSEC |
7340 | wait_queue_head_t *pdone_q; |
7341 | unsigned long iflags; | |
dea3101e | 7342 | |
2e0fef85 | 7343 | spin_lock_irqsave(&phba->hbalock, iflags); |
68876920 JSEC |
7344 | cmdiocbq->iocb_flag |= LPFC_IO_WAKE; |
7345 | if (cmdiocbq->context2 && rspiocbq) | |
7346 | memcpy(&((struct lpfc_iocbq *)cmdiocbq->context2)->iocb, | |
7347 | &rspiocbq->iocb, sizeof(IOCB_t)); | |
7348 | ||
7349 | pdone_q = cmdiocbq->context_un.wait_queue; | |
68876920 JSEC |
7350 | if (pdone_q) |
7351 | wake_up(pdone_q); | |
858c9f6c | 7352 | spin_unlock_irqrestore(&phba->hbalock, iflags); |
dea3101e | 7353 | return; |
7354 | } | |
7355 | ||
e59058c4 | 7356 | /** |
3621a710 | 7357 | * lpfc_sli_issue_iocb_wait - Synchronous function to issue iocb commands |
e59058c4 JS |
7358 | * @phba: Pointer to HBA context object.. |
7359 | * @pring: Pointer to sli ring. | |
7360 | * @piocb: Pointer to command iocb. | |
7361 | * @prspiocbq: Pointer to response iocb. | |
7362 | * @timeout: Timeout in number of seconds. | |
7363 | * | |
7364 | * This function issues the iocb to firmware and waits for the | |
7365 | * iocb to complete. If the iocb command is not | |
7366 | * completed within timeout seconds, it returns IOCB_TIMEDOUT. | |
7367 | * Caller should not free the iocb resources if this function | |
7368 | * returns IOCB_TIMEDOUT. | |
7369 | * The function waits for the iocb completion using an | |
7370 | * non-interruptible wait. | |
7371 | * This function will sleep while waiting for iocb completion. | |
7372 | * So, this function should not be called from any context which | |
7373 | * does not allow sleeping. Due to the same reason, this function | |
7374 | * cannot be called with interrupt disabled. | |
7375 | * This function assumes that the iocb completions occur while | |
7376 | * this function sleep. So, this function cannot be called from | |
7377 | * the thread which process iocb completion for this ring. | |
7378 | * This function clears the iocb_flag of the iocb object before | |
7379 | * issuing the iocb and the iocb completion handler sets this | |
7380 | * flag and wakes this thread when the iocb completes. | |
7381 | * The contents of the response iocb will be copied to prspiocbq | |
7382 | * by the completion handler when the command completes. | |
7383 | * This function returns IOCB_SUCCESS when success. | |
7384 | * This function is called with no lock held. | |
7385 | **/ | |
dea3101e | 7386 | int |
2e0fef85 | 7387 | lpfc_sli_issue_iocb_wait(struct lpfc_hba *phba, |
da0436e9 | 7388 | uint32_t ring_number, |
2e0fef85 JS |
7389 | struct lpfc_iocbq *piocb, |
7390 | struct lpfc_iocbq *prspiocbq, | |
68876920 | 7391 | uint32_t timeout) |
dea3101e | 7392 | { |
7259f0d0 | 7393 | DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q); |
68876920 JSEC |
7394 | long timeleft, timeout_req = 0; |
7395 | int retval = IOCB_SUCCESS; | |
875fbdfe | 7396 | uint32_t creg_val; |
dea3101e | 7397 | |
7398 | /* | |
68876920 JSEC |
7399 | * If the caller has provided a response iocbq buffer, then context2 |
7400 | * is NULL or its an error. | |
dea3101e | 7401 | */ |
68876920 JSEC |
7402 | if (prspiocbq) { |
7403 | if (piocb->context2) | |
7404 | return IOCB_ERROR; | |
7405 | piocb->context2 = prspiocbq; | |
dea3101e | 7406 | } |
7407 | ||
68876920 JSEC |
7408 | piocb->iocb_cmpl = lpfc_sli_wake_iocb_wait; |
7409 | piocb->context_un.wait_queue = &done_q; | |
7410 | piocb->iocb_flag &= ~LPFC_IO_WAKE; | |
dea3101e | 7411 | |
875fbdfe JSEC |
7412 | if (phba->cfg_poll & DISABLE_FCP_RING_INT) { |
7413 | creg_val = readl(phba->HCregaddr); | |
7414 | creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING); | |
7415 | writel(creg_val, phba->HCregaddr); | |
7416 | readl(phba->HCregaddr); /* flush */ | |
7417 | } | |
7418 | ||
da0436e9 | 7419 | retval = lpfc_sli_issue_iocb(phba, ring_number, piocb, 0); |
68876920 JSEC |
7420 | if (retval == IOCB_SUCCESS) { |
7421 | timeout_req = timeout * HZ; | |
68876920 JSEC |
7422 | timeleft = wait_event_timeout(done_q, |
7423 | piocb->iocb_flag & LPFC_IO_WAKE, | |
7424 | timeout_req); | |
dea3101e | 7425 | |
7054a606 JS |
7426 | if (piocb->iocb_flag & LPFC_IO_WAKE) { |
7427 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
e8b62011 | 7428 | "0331 IOCB wake signaled\n"); |
7054a606 | 7429 | } else if (timeleft == 0) { |
68876920 | 7430 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, |
e8b62011 JS |
7431 | "0338 IOCB wait timeout error - no " |
7432 | "wake response Data x%x\n", timeout); | |
68876920 | 7433 | retval = IOCB_TIMEDOUT; |
7054a606 | 7434 | } else { |
68876920 | 7435 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, |
e8b62011 JS |
7436 | "0330 IOCB wake NOT set, " |
7437 | "Data x%x x%lx\n", | |
68876920 JSEC |
7438 | timeout, (timeleft / jiffies)); |
7439 | retval = IOCB_TIMEDOUT; | |
dea3101e | 7440 | } |
68876920 JSEC |
7441 | } else { |
7442 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
d7c255b2 | 7443 | "0332 IOCB wait issue failed, Data x%x\n", |
e8b62011 | 7444 | retval); |
68876920 | 7445 | retval = IOCB_ERROR; |
dea3101e | 7446 | } |
7447 | ||
875fbdfe JSEC |
7448 | if (phba->cfg_poll & DISABLE_FCP_RING_INT) { |
7449 | creg_val = readl(phba->HCregaddr); | |
7450 | creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING); | |
7451 | writel(creg_val, phba->HCregaddr); | |
7452 | readl(phba->HCregaddr); /* flush */ | |
7453 | } | |
7454 | ||
68876920 JSEC |
7455 | if (prspiocbq) |
7456 | piocb->context2 = NULL; | |
7457 | ||
7458 | piocb->context_un.wait_queue = NULL; | |
7459 | piocb->iocb_cmpl = NULL; | |
dea3101e | 7460 | return retval; |
7461 | } | |
68876920 | 7462 | |
e59058c4 | 7463 | /** |
3621a710 | 7464 | * lpfc_sli_issue_mbox_wait - Synchronous function to issue mailbox |
e59058c4 JS |
7465 | * @phba: Pointer to HBA context object. |
7466 | * @pmboxq: Pointer to driver mailbox object. | |
7467 | * @timeout: Timeout in number of seconds. | |
7468 | * | |
7469 | * This function issues the mailbox to firmware and waits for the | |
7470 | * mailbox command to complete. If the mailbox command is not | |
7471 | * completed within timeout seconds, it returns MBX_TIMEOUT. | |
7472 | * The function waits for the mailbox completion using an | |
7473 | * interruptible wait. If the thread is woken up due to a | |
7474 | * signal, MBX_TIMEOUT error is returned to the caller. Caller | |
7475 | * should not free the mailbox resources, if this function returns | |
7476 | * MBX_TIMEOUT. | |
7477 | * This function will sleep while waiting for mailbox completion. | |
7478 | * So, this function should not be called from any context which | |
7479 | * does not allow sleeping. Due to the same reason, this function | |
7480 | * cannot be called with interrupt disabled. | |
7481 | * This function assumes that the mailbox completion occurs while | |
7482 | * this function sleep. So, this function cannot be called from | |
7483 | * the worker thread which processes mailbox completion. | |
7484 | * This function is called in the context of HBA management | |
7485 | * applications. | |
7486 | * This function returns MBX_SUCCESS when successful. | |
7487 | * This function is called with no lock held. | |
7488 | **/ | |
dea3101e | 7489 | int |
2e0fef85 | 7490 | lpfc_sli_issue_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq, |
dea3101e | 7491 | uint32_t timeout) |
7492 | { | |
7259f0d0 | 7493 | DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q); |
dea3101e | 7494 | int retval; |
858c9f6c | 7495 | unsigned long flag; |
dea3101e | 7496 | |
7497 | /* The caller must leave context1 empty. */ | |
98c9ea5c | 7498 | if (pmboxq->context1) |
2e0fef85 | 7499 | return MBX_NOT_FINISHED; |
dea3101e | 7500 | |
495a714c | 7501 | pmboxq->mbox_flag &= ~LPFC_MBX_WAKE; |
dea3101e | 7502 | /* setup wake call as IOCB callback */ |
7503 | pmboxq->mbox_cmpl = lpfc_sli_wake_mbox_wait; | |
7504 | /* setup context field to pass wait_queue pointer to wake function */ | |
7505 | pmboxq->context1 = &done_q; | |
7506 | ||
dea3101e | 7507 | /* now issue the command */ |
7508 | retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT); | |
7509 | ||
7510 | if (retval == MBX_BUSY || retval == MBX_SUCCESS) { | |
7054a606 JS |
7511 | wait_event_interruptible_timeout(done_q, |
7512 | pmboxq->mbox_flag & LPFC_MBX_WAKE, | |
7513 | timeout * HZ); | |
7514 | ||
858c9f6c | 7515 | spin_lock_irqsave(&phba->hbalock, flag); |
dea3101e | 7516 | pmboxq->context1 = NULL; |
7054a606 JS |
7517 | /* |
7518 | * if LPFC_MBX_WAKE flag is set the mailbox is completed | |
7519 | * else do not free the resources. | |
7520 | */ | |
7521 | if (pmboxq->mbox_flag & LPFC_MBX_WAKE) | |
dea3101e | 7522 | retval = MBX_SUCCESS; |
858c9f6c | 7523 | else { |
7054a606 | 7524 | retval = MBX_TIMEOUT; |
858c9f6c JS |
7525 | pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl; |
7526 | } | |
7527 | spin_unlock_irqrestore(&phba->hbalock, flag); | |
dea3101e | 7528 | } |
7529 | ||
dea3101e | 7530 | return retval; |
7531 | } | |
7532 | ||
e59058c4 | 7533 | /** |
3772a991 | 7534 | * lpfc_sli_mbox_sys_shutdown - shutdown mailbox command sub-system |
e59058c4 JS |
7535 | * @phba: Pointer to HBA context. |
7536 | * | |
3772a991 JS |
7537 | * This function is called to shutdown the driver's mailbox sub-system. |
7538 | * It first marks the mailbox sub-system is in a block state to prevent | |
7539 | * the asynchronous mailbox command from issued off the pending mailbox | |
7540 | * command queue. If the mailbox command sub-system shutdown is due to | |
7541 | * HBA error conditions such as EEH or ERATT, this routine shall invoke | |
7542 | * the mailbox sub-system flush routine to forcefully bring down the | |
7543 | * mailbox sub-system. Otherwise, if it is due to normal condition (such | |
7544 | * as with offline or HBA function reset), this routine will wait for the | |
7545 | * outstanding mailbox command to complete before invoking the mailbox | |
7546 | * sub-system flush routine to gracefully bring down mailbox sub-system. | |
e59058c4 | 7547 | **/ |
3772a991 JS |
7548 | void |
7549 | lpfc_sli_mbox_sys_shutdown(struct lpfc_hba *phba) | |
b4c02652 | 7550 | { |
3772a991 JS |
7551 | struct lpfc_sli *psli = &phba->sli; |
7552 | uint8_t actcmd = MBX_HEARTBEAT; | |
7553 | unsigned long timeout; | |
b4c02652 | 7554 | |
3772a991 JS |
7555 | spin_lock_irq(&phba->hbalock); |
7556 | psli->sli_flag |= LPFC_SLI_ASYNC_MBX_BLK; | |
7557 | spin_unlock_irq(&phba->hbalock); | |
b4c02652 | 7558 | |
3772a991 | 7559 | if (psli->sli_flag & LPFC_SLI_ACTIVE) { |
ed957684 | 7560 | spin_lock_irq(&phba->hbalock); |
3772a991 JS |
7561 | if (phba->sli.mbox_active) |
7562 | actcmd = phba->sli.mbox_active->u.mb.mbxCommand; | |
ed957684 | 7563 | spin_unlock_irq(&phba->hbalock); |
3772a991 JS |
7564 | /* Determine how long we might wait for the active mailbox |
7565 | * command to be gracefully completed by firmware. | |
7566 | */ | |
7567 | timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, actcmd) * | |
7568 | 1000) + jiffies; | |
7569 | while (phba->sli.mbox_active) { | |
7570 | /* Check active mailbox complete status every 2ms */ | |
7571 | msleep(2); | |
7572 | if (time_after(jiffies, timeout)) | |
7573 | /* Timeout, let the mailbox flush routine to | |
7574 | * forcefully release active mailbox command | |
7575 | */ | |
7576 | break; | |
7577 | } | |
7578 | } | |
7579 | lpfc_sli_mbox_sys_flush(phba); | |
7580 | } | |
ed957684 | 7581 | |
3772a991 JS |
7582 | /** |
7583 | * lpfc_sli_eratt_read - read sli-3 error attention events | |
7584 | * @phba: Pointer to HBA context. | |
7585 | * | |
7586 | * This function is called to read the SLI3 device error attention registers | |
7587 | * for possible error attention events. The caller must hold the hostlock | |
7588 | * with spin_lock_irq(). | |
7589 | * | |
7590 | * This fucntion returns 1 when there is Error Attention in the Host Attention | |
7591 | * Register and returns 0 otherwise. | |
7592 | **/ | |
7593 | static int | |
7594 | lpfc_sli_eratt_read(struct lpfc_hba *phba) | |
7595 | { | |
7596 | uint32_t ha_copy; | |
b4c02652 | 7597 | |
3772a991 JS |
7598 | /* Read chip Host Attention (HA) register */ |
7599 | ha_copy = readl(phba->HAregaddr); | |
7600 | if (ha_copy & HA_ERATT) { | |
7601 | /* Read host status register to retrieve error event */ | |
7602 | lpfc_sli_read_hs(phba); | |
b4c02652 | 7603 | |
3772a991 JS |
7604 | /* Check if there is a deferred error condition is active */ |
7605 | if ((HS_FFER1 & phba->work_hs) && | |
7606 | ((HS_FFER2 | HS_FFER3 | HS_FFER4 | HS_FFER5 | | |
7607 | HS_FFER6 | HS_FFER7) & phba->work_hs)) { | |
7608 | spin_lock_irq(&phba->hbalock); | |
7609 | phba->hba_flag |= DEFER_ERATT; | |
7610 | spin_unlock_irq(&phba->hbalock); | |
7611 | /* Clear all interrupt enable conditions */ | |
7612 | writel(0, phba->HCregaddr); | |
7613 | readl(phba->HCregaddr); | |
7614 | } | |
7615 | ||
7616 | /* Set the driver HA work bitmap */ | |
7617 | spin_lock_irq(&phba->hbalock); | |
7618 | phba->work_ha |= HA_ERATT; | |
7619 | /* Indicate polling handles this ERATT */ | |
7620 | phba->hba_flag |= HBA_ERATT_HANDLED; | |
7621 | spin_unlock_irq(&phba->hbalock); | |
7622 | return 1; | |
7623 | } | |
7624 | return 0; | |
b4c02652 JS |
7625 | } |
7626 | ||
da0436e9 JS |
7627 | /** |
7628 | * lpfc_sli4_eratt_read - read sli-4 error attention events | |
7629 | * @phba: Pointer to HBA context. | |
7630 | * | |
7631 | * This function is called to read the SLI4 device error attention registers | |
7632 | * for possible error attention events. The caller must hold the hostlock | |
7633 | * with spin_lock_irq(). | |
7634 | * | |
7635 | * This fucntion returns 1 when there is Error Attention in the Host Attention | |
7636 | * Register and returns 0 otherwise. | |
7637 | **/ | |
7638 | static int | |
7639 | lpfc_sli4_eratt_read(struct lpfc_hba *phba) | |
7640 | { | |
7641 | uint32_t uerr_sta_hi, uerr_sta_lo; | |
7642 | uint32_t onlnreg0, onlnreg1; | |
7643 | ||
7644 | /* For now, use the SLI4 device internal unrecoverable error | |
7645 | * registers for error attention. This can be changed later. | |
7646 | */ | |
7647 | onlnreg0 = readl(phba->sli4_hba.ONLINE0regaddr); | |
7648 | onlnreg1 = readl(phba->sli4_hba.ONLINE1regaddr); | |
7649 | if ((onlnreg0 != LPFC_ONLINE_NERR) || (onlnreg1 != LPFC_ONLINE_NERR)) { | |
7650 | uerr_sta_lo = readl(phba->sli4_hba.UERRLOregaddr); | |
7651 | uerr_sta_hi = readl(phba->sli4_hba.UERRHIregaddr); | |
7652 | if (uerr_sta_lo || uerr_sta_hi) { | |
7653 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
7654 | "1423 HBA Unrecoverable error: " | |
7655 | "uerr_lo_reg=0x%x, uerr_hi_reg=0x%x, " | |
7656 | "online0_reg=0x%x, online1_reg=0x%x\n", | |
7657 | uerr_sta_lo, uerr_sta_hi, | |
7658 | onlnreg0, onlnreg1); | |
7659 | /* TEMP: as the driver error recover logic is not | |
7660 | * fully developed, we just log the error message | |
7661 | * and the device error attention action is now | |
7662 | * temporarily disabled. | |
7663 | */ | |
7664 | return 0; | |
7665 | phba->work_status[0] = uerr_sta_lo; | |
7666 | phba->work_status[1] = uerr_sta_hi; | |
7667 | spin_lock_irq(&phba->hbalock); | |
7668 | /* Set the driver HA work bitmap */ | |
7669 | phba->work_ha |= HA_ERATT; | |
7670 | /* Indicate polling handles this ERATT */ | |
7671 | phba->hba_flag |= HBA_ERATT_HANDLED; | |
7672 | spin_unlock_irq(&phba->hbalock); | |
7673 | return 1; | |
7674 | } | |
7675 | } | |
7676 | return 0; | |
7677 | } | |
7678 | ||
e59058c4 | 7679 | /** |
3621a710 | 7680 | * lpfc_sli_check_eratt - check error attention events |
9399627f JS |
7681 | * @phba: Pointer to HBA context. |
7682 | * | |
3772a991 | 7683 | * This function is called from timer soft interrupt context to check HBA's |
9399627f JS |
7684 | * error attention register bit for error attention events. |
7685 | * | |
7686 | * This fucntion returns 1 when there is Error Attention in the Host Attention | |
7687 | * Register and returns 0 otherwise. | |
7688 | **/ | |
7689 | int | |
7690 | lpfc_sli_check_eratt(struct lpfc_hba *phba) | |
7691 | { | |
7692 | uint32_t ha_copy; | |
7693 | ||
7694 | /* If somebody is waiting to handle an eratt, don't process it | |
7695 | * here. The brdkill function will do this. | |
7696 | */ | |
7697 | if (phba->link_flag & LS_IGNORE_ERATT) | |
7698 | return 0; | |
7699 | ||
7700 | /* Check if interrupt handler handles this ERATT */ | |
7701 | spin_lock_irq(&phba->hbalock); | |
7702 | if (phba->hba_flag & HBA_ERATT_HANDLED) { | |
7703 | /* Interrupt handler has handled ERATT */ | |
7704 | spin_unlock_irq(&phba->hbalock); | |
7705 | return 0; | |
7706 | } | |
7707 | ||
a257bf90 JS |
7708 | /* |
7709 | * If there is deferred error attention, do not check for error | |
7710 | * attention | |
7711 | */ | |
7712 | if (unlikely(phba->hba_flag & DEFER_ERATT)) { | |
7713 | spin_unlock_irq(&phba->hbalock); | |
7714 | return 0; | |
7715 | } | |
7716 | ||
3772a991 JS |
7717 | /* If PCI channel is offline, don't process it */ |
7718 | if (unlikely(pci_channel_offline(phba->pcidev))) { | |
9399627f | 7719 | spin_unlock_irq(&phba->hbalock); |
3772a991 JS |
7720 | return 0; |
7721 | } | |
7722 | ||
7723 | switch (phba->sli_rev) { | |
7724 | case LPFC_SLI_REV2: | |
7725 | case LPFC_SLI_REV3: | |
7726 | /* Read chip Host Attention (HA) register */ | |
7727 | ha_copy = lpfc_sli_eratt_read(phba); | |
7728 | break; | |
da0436e9 JS |
7729 | case LPFC_SLI_REV4: |
7730 | /* Read devcie Uncoverable Error (UERR) registers */ | |
7731 | ha_copy = lpfc_sli4_eratt_read(phba); | |
7732 | break; | |
3772a991 JS |
7733 | default: |
7734 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
7735 | "0299 Invalid SLI revision (%d)\n", | |
7736 | phba->sli_rev); | |
7737 | ha_copy = 0; | |
7738 | break; | |
9399627f JS |
7739 | } |
7740 | spin_unlock_irq(&phba->hbalock); | |
3772a991 JS |
7741 | |
7742 | return ha_copy; | |
7743 | } | |
7744 | ||
7745 | /** | |
7746 | * lpfc_intr_state_check - Check device state for interrupt handling | |
7747 | * @phba: Pointer to HBA context. | |
7748 | * | |
7749 | * This inline routine checks whether a device or its PCI slot is in a state | |
7750 | * that the interrupt should be handled. | |
7751 | * | |
7752 | * This function returns 0 if the device or the PCI slot is in a state that | |
7753 | * interrupt should be handled, otherwise -EIO. | |
7754 | */ | |
7755 | static inline int | |
7756 | lpfc_intr_state_check(struct lpfc_hba *phba) | |
7757 | { | |
7758 | /* If the pci channel is offline, ignore all the interrupts */ | |
7759 | if (unlikely(pci_channel_offline(phba->pcidev))) | |
7760 | return -EIO; | |
7761 | ||
7762 | /* Update device level interrupt statistics */ | |
7763 | phba->sli.slistat.sli_intr++; | |
7764 | ||
7765 | /* Ignore all interrupts during initialization. */ | |
7766 | if (unlikely(phba->link_state < LPFC_LINK_DOWN)) | |
7767 | return -EIO; | |
7768 | ||
9399627f JS |
7769 | return 0; |
7770 | } | |
7771 | ||
7772 | /** | |
3772a991 | 7773 | * lpfc_sli_sp_intr_handler - Slow-path interrupt handler to SLI-3 device |
e59058c4 JS |
7774 | * @irq: Interrupt number. |
7775 | * @dev_id: The device context pointer. | |
7776 | * | |
9399627f | 7777 | * This function is directly called from the PCI layer as an interrupt |
3772a991 JS |
7778 | * service routine when device with SLI-3 interface spec is enabled with |
7779 | * MSI-X multi-message interrupt mode and there are slow-path events in | |
7780 | * the HBA. However, when the device is enabled with either MSI or Pin-IRQ | |
7781 | * interrupt mode, this function is called as part of the device-level | |
7782 | * interrupt handler. When the PCI slot is in error recovery or the HBA | |
7783 | * is undergoing initialization, the interrupt handler will not process | |
7784 | * the interrupt. The link attention and ELS ring attention events are | |
7785 | * handled by the worker thread. The interrupt handler signals the worker | |
7786 | * thread and returns for these events. This function is called without | |
7787 | * any lock held. It gets the hbalock to access and update SLI data | |
9399627f JS |
7788 | * structures. |
7789 | * | |
7790 | * This function returns IRQ_HANDLED when interrupt is handled else it | |
7791 | * returns IRQ_NONE. | |
e59058c4 | 7792 | **/ |
dea3101e | 7793 | irqreturn_t |
3772a991 | 7794 | lpfc_sli_sp_intr_handler(int irq, void *dev_id) |
dea3101e | 7795 | { |
2e0fef85 | 7796 | struct lpfc_hba *phba; |
dea3101e | 7797 | uint32_t ha_copy; |
7798 | uint32_t work_ha_copy; | |
7799 | unsigned long status; | |
5b75da2f | 7800 | unsigned long iflag; |
dea3101e | 7801 | uint32_t control; |
7802 | ||
92d7f7b0 | 7803 | MAILBOX_t *mbox, *pmbox; |
858c9f6c JS |
7804 | struct lpfc_vport *vport; |
7805 | struct lpfc_nodelist *ndlp; | |
7806 | struct lpfc_dmabuf *mp; | |
92d7f7b0 JS |
7807 | LPFC_MBOXQ_t *pmb; |
7808 | int rc; | |
7809 | ||
dea3101e | 7810 | /* |
7811 | * Get the driver's phba structure from the dev_id and | |
7812 | * assume the HBA is not interrupting. | |
7813 | */ | |
9399627f | 7814 | phba = (struct lpfc_hba *)dev_id; |
dea3101e | 7815 | |
7816 | if (unlikely(!phba)) | |
7817 | return IRQ_NONE; | |
7818 | ||
dea3101e | 7819 | /* |
9399627f JS |
7820 | * Stuff needs to be attented to when this function is invoked as an |
7821 | * individual interrupt handler in MSI-X multi-message interrupt mode | |
dea3101e | 7822 | */ |
9399627f | 7823 | if (phba->intr_type == MSIX) { |
3772a991 JS |
7824 | /* Check device state for handling interrupt */ |
7825 | if (lpfc_intr_state_check(phba)) | |
9399627f JS |
7826 | return IRQ_NONE; |
7827 | /* Need to read HA REG for slow-path events */ | |
5b75da2f | 7828 | spin_lock_irqsave(&phba->hbalock, iflag); |
34b02dcd | 7829 | ha_copy = readl(phba->HAregaddr); |
9399627f JS |
7830 | /* If somebody is waiting to handle an eratt don't process it |
7831 | * here. The brdkill function will do this. | |
7832 | */ | |
7833 | if (phba->link_flag & LS_IGNORE_ERATT) | |
7834 | ha_copy &= ~HA_ERATT; | |
7835 | /* Check the need for handling ERATT in interrupt handler */ | |
7836 | if (ha_copy & HA_ERATT) { | |
7837 | if (phba->hba_flag & HBA_ERATT_HANDLED) | |
7838 | /* ERATT polling has handled ERATT */ | |
7839 | ha_copy &= ~HA_ERATT; | |
7840 | else | |
7841 | /* Indicate interrupt handler handles ERATT */ | |
7842 | phba->hba_flag |= HBA_ERATT_HANDLED; | |
7843 | } | |
a257bf90 JS |
7844 | |
7845 | /* | |
7846 | * If there is deferred error attention, do not check for any | |
7847 | * interrupt. | |
7848 | */ | |
7849 | if (unlikely(phba->hba_flag & DEFER_ERATT)) { | |
3772a991 | 7850 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
a257bf90 JS |
7851 | return IRQ_NONE; |
7852 | } | |
7853 | ||
9399627f JS |
7854 | /* Clear up only attention source related to slow-path */ |
7855 | writel((ha_copy & (HA_MBATT | HA_R2_CLR_MSK)), | |
7856 | phba->HAregaddr); | |
7857 | readl(phba->HAregaddr); /* flush */ | |
5b75da2f | 7858 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
9399627f JS |
7859 | } else |
7860 | ha_copy = phba->ha_copy; | |
dea3101e | 7861 | |
dea3101e | 7862 | work_ha_copy = ha_copy & phba->work_ha_mask; |
7863 | ||
9399627f | 7864 | if (work_ha_copy) { |
dea3101e | 7865 | if (work_ha_copy & HA_LATT) { |
7866 | if (phba->sli.sli_flag & LPFC_PROCESS_LA) { | |
7867 | /* | |
7868 | * Turn off Link Attention interrupts | |
7869 | * until CLEAR_LA done | |
7870 | */ | |
5b75da2f | 7871 | spin_lock_irqsave(&phba->hbalock, iflag); |
dea3101e | 7872 | phba->sli.sli_flag &= ~LPFC_PROCESS_LA; |
7873 | control = readl(phba->HCregaddr); | |
7874 | control &= ~HC_LAINT_ENA; | |
7875 | writel(control, phba->HCregaddr); | |
7876 | readl(phba->HCregaddr); /* flush */ | |
5b75da2f | 7877 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
dea3101e | 7878 | } |
7879 | else | |
7880 | work_ha_copy &= ~HA_LATT; | |
7881 | } | |
7882 | ||
9399627f | 7883 | if (work_ha_copy & ~(HA_ERATT | HA_MBATT | HA_LATT)) { |
858c9f6c JS |
7884 | /* |
7885 | * Turn off Slow Rings interrupts, LPFC_ELS_RING is | |
7886 | * the only slow ring. | |
7887 | */ | |
7888 | status = (work_ha_copy & | |
7889 | (HA_RXMASK << (4*LPFC_ELS_RING))); | |
7890 | status >>= (4*LPFC_ELS_RING); | |
7891 | if (status & HA_RXMASK) { | |
5b75da2f | 7892 | spin_lock_irqsave(&phba->hbalock, iflag); |
858c9f6c | 7893 | control = readl(phba->HCregaddr); |
a58cbd52 JS |
7894 | |
7895 | lpfc_debugfs_slow_ring_trc(phba, | |
7896 | "ISR slow ring: ctl:x%x stat:x%x isrcnt:x%x", | |
7897 | control, status, | |
7898 | (uint32_t)phba->sli.slistat.sli_intr); | |
7899 | ||
858c9f6c | 7900 | if (control & (HC_R0INT_ENA << LPFC_ELS_RING)) { |
a58cbd52 JS |
7901 | lpfc_debugfs_slow_ring_trc(phba, |
7902 | "ISR Disable ring:" | |
7903 | "pwork:x%x hawork:x%x wait:x%x", | |
7904 | phba->work_ha, work_ha_copy, | |
7905 | (uint32_t)((unsigned long) | |
5e9d9b82 | 7906 | &phba->work_waitq)); |
a58cbd52 | 7907 | |
858c9f6c JS |
7908 | control &= |
7909 | ~(HC_R0INT_ENA << LPFC_ELS_RING); | |
dea3101e | 7910 | writel(control, phba->HCregaddr); |
7911 | readl(phba->HCregaddr); /* flush */ | |
dea3101e | 7912 | } |
a58cbd52 JS |
7913 | else { |
7914 | lpfc_debugfs_slow_ring_trc(phba, | |
7915 | "ISR slow ring: pwork:" | |
7916 | "x%x hawork:x%x wait:x%x", | |
7917 | phba->work_ha, work_ha_copy, | |
7918 | (uint32_t)((unsigned long) | |
5e9d9b82 | 7919 | &phba->work_waitq)); |
a58cbd52 | 7920 | } |
5b75da2f | 7921 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
dea3101e | 7922 | } |
7923 | } | |
5b75da2f | 7924 | spin_lock_irqsave(&phba->hbalock, iflag); |
a257bf90 | 7925 | if (work_ha_copy & HA_ERATT) { |
9399627f | 7926 | lpfc_sli_read_hs(phba); |
a257bf90 JS |
7927 | /* |
7928 | * Check if there is a deferred error condition | |
7929 | * is active | |
7930 | */ | |
7931 | if ((HS_FFER1 & phba->work_hs) && | |
7932 | ((HS_FFER2 | HS_FFER3 | HS_FFER4 | HS_FFER5 | | |
7933 | HS_FFER6 | HS_FFER7) & phba->work_hs)) { | |
7934 | phba->hba_flag |= DEFER_ERATT; | |
7935 | /* Clear all interrupt enable conditions */ | |
7936 | writel(0, phba->HCregaddr); | |
7937 | readl(phba->HCregaddr); | |
7938 | } | |
7939 | } | |
7940 | ||
9399627f | 7941 | if ((work_ha_copy & HA_MBATT) && (phba->sli.mbox_active)) { |
92d7f7b0 | 7942 | pmb = phba->sli.mbox_active; |
04c68496 | 7943 | pmbox = &pmb->u.mb; |
34b02dcd | 7944 | mbox = phba->mbox; |
858c9f6c | 7945 | vport = pmb->vport; |
92d7f7b0 JS |
7946 | |
7947 | /* First check out the status word */ | |
7948 | lpfc_sli_pcimem_bcopy(mbox, pmbox, sizeof(uint32_t)); | |
7949 | if (pmbox->mbxOwner != OWN_HOST) { | |
5b75da2f | 7950 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
92d7f7b0 JS |
7951 | /* |
7952 | * Stray Mailbox Interrupt, mbxCommand <cmd> | |
7953 | * mbxStatus <status> | |
7954 | */ | |
09372820 | 7955 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | |
92d7f7b0 | 7956 | LOG_SLI, |
e8b62011 | 7957 | "(%d):0304 Stray Mailbox " |
92d7f7b0 JS |
7958 | "Interrupt mbxCommand x%x " |
7959 | "mbxStatus x%x\n", | |
e8b62011 | 7960 | (vport ? vport->vpi : 0), |
92d7f7b0 JS |
7961 | pmbox->mbxCommand, |
7962 | pmbox->mbxStatus); | |
09372820 JS |
7963 | /* clear mailbox attention bit */ |
7964 | work_ha_copy &= ~HA_MBATT; | |
7965 | } else { | |
97eab634 | 7966 | phba->sli.mbox_active = NULL; |
5b75da2f | 7967 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
09372820 JS |
7968 | phba->last_completion_time = jiffies; |
7969 | del_timer(&phba->sli.mbox_tmo); | |
09372820 JS |
7970 | if (pmb->mbox_cmpl) { |
7971 | lpfc_sli_pcimem_bcopy(mbox, pmbox, | |
7972 | MAILBOX_CMD_SIZE); | |
7973 | } | |
7974 | if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) { | |
7975 | pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG; | |
7976 | ||
7977 | lpfc_debugfs_disc_trc(vport, | |
7978 | LPFC_DISC_TRC_MBOX_VPORT, | |
7979 | "MBOX dflt rpi: : " | |
7980 | "status:x%x rpi:x%x", | |
7981 | (uint32_t)pmbox->mbxStatus, | |
7982 | pmbox->un.varWords[0], 0); | |
7983 | ||
7984 | if (!pmbox->mbxStatus) { | |
7985 | mp = (struct lpfc_dmabuf *) | |
7986 | (pmb->context1); | |
7987 | ndlp = (struct lpfc_nodelist *) | |
7988 | pmb->context2; | |
7989 | ||
7990 | /* Reg_LOGIN of dflt RPI was | |
7991 | * successful. new lets get | |
7992 | * rid of the RPI using the | |
7993 | * same mbox buffer. | |
7994 | */ | |
7995 | lpfc_unreg_login(phba, | |
7996 | vport->vpi, | |
7997 | pmbox->un.varWords[0], | |
7998 | pmb); | |
7999 | pmb->mbox_cmpl = | |
8000 | lpfc_mbx_cmpl_dflt_rpi; | |
8001 | pmb->context1 = mp; | |
8002 | pmb->context2 = ndlp; | |
8003 | pmb->vport = vport; | |
58da1ffb JS |
8004 | rc = lpfc_sli_issue_mbox(phba, |
8005 | pmb, | |
8006 | MBX_NOWAIT); | |
8007 | if (rc != MBX_BUSY) | |
8008 | lpfc_printf_log(phba, | |
8009 | KERN_ERR, | |
8010 | LOG_MBOX | LOG_SLI, | |
d7c255b2 | 8011 | "0350 rc should have" |
58da1ffb | 8012 | "been MBX_BUSY"); |
3772a991 JS |
8013 | if (rc != MBX_NOT_FINISHED) |
8014 | goto send_current_mbox; | |
09372820 | 8015 | } |
858c9f6c | 8016 | } |
5b75da2f JS |
8017 | spin_lock_irqsave( |
8018 | &phba->pport->work_port_lock, | |
8019 | iflag); | |
09372820 JS |
8020 | phba->pport->work_port_events &= |
8021 | ~WORKER_MBOX_TMO; | |
5b75da2f JS |
8022 | spin_unlock_irqrestore( |
8023 | &phba->pport->work_port_lock, | |
8024 | iflag); | |
09372820 | 8025 | lpfc_mbox_cmpl_put(phba, pmb); |
858c9f6c | 8026 | } |
97eab634 | 8027 | } else |
5b75da2f | 8028 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
9399627f | 8029 | |
92d7f7b0 JS |
8030 | if ((work_ha_copy & HA_MBATT) && |
8031 | (phba->sli.mbox_active == NULL)) { | |
858c9f6c | 8032 | send_current_mbox: |
92d7f7b0 | 8033 | /* Process next mailbox command if there is one */ |
58da1ffb JS |
8034 | do { |
8035 | rc = lpfc_sli_issue_mbox(phba, NULL, | |
8036 | MBX_NOWAIT); | |
8037 | } while (rc == MBX_NOT_FINISHED); | |
8038 | if (rc != MBX_SUCCESS) | |
8039 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | | |
8040 | LOG_SLI, "0349 rc should be " | |
8041 | "MBX_SUCCESS"); | |
92d7f7b0 JS |
8042 | } |
8043 | ||
5b75da2f | 8044 | spin_lock_irqsave(&phba->hbalock, iflag); |
dea3101e | 8045 | phba->work_ha |= work_ha_copy; |
5b75da2f | 8046 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
5e9d9b82 | 8047 | lpfc_worker_wake_up(phba); |
dea3101e | 8048 | } |
9399627f | 8049 | return IRQ_HANDLED; |
dea3101e | 8050 | |
3772a991 | 8051 | } /* lpfc_sli_sp_intr_handler */ |
9399627f JS |
8052 | |
8053 | /** | |
3772a991 | 8054 | * lpfc_sli_fp_intr_handler - Fast-path interrupt handler to SLI-3 device. |
9399627f JS |
8055 | * @irq: Interrupt number. |
8056 | * @dev_id: The device context pointer. | |
8057 | * | |
8058 | * This function is directly called from the PCI layer as an interrupt | |
3772a991 JS |
8059 | * service routine when device with SLI-3 interface spec is enabled with |
8060 | * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB | |
8061 | * ring event in the HBA. However, when the device is enabled with either | |
8062 | * MSI or Pin-IRQ interrupt mode, this function is called as part of the | |
8063 | * device-level interrupt handler. When the PCI slot is in error recovery | |
8064 | * or the HBA is undergoing initialization, the interrupt handler will not | |
8065 | * process the interrupt. The SCSI FCP fast-path ring event are handled in | |
8066 | * the intrrupt context. This function is called without any lock held. | |
8067 | * It gets the hbalock to access and update SLI data structures. | |
9399627f JS |
8068 | * |
8069 | * This function returns IRQ_HANDLED when interrupt is handled else it | |
8070 | * returns IRQ_NONE. | |
8071 | **/ | |
8072 | irqreturn_t | |
3772a991 | 8073 | lpfc_sli_fp_intr_handler(int irq, void *dev_id) |
9399627f JS |
8074 | { |
8075 | struct lpfc_hba *phba; | |
8076 | uint32_t ha_copy; | |
8077 | unsigned long status; | |
5b75da2f | 8078 | unsigned long iflag; |
9399627f JS |
8079 | |
8080 | /* Get the driver's phba structure from the dev_id and | |
8081 | * assume the HBA is not interrupting. | |
8082 | */ | |
8083 | phba = (struct lpfc_hba *) dev_id; | |
8084 | ||
8085 | if (unlikely(!phba)) | |
8086 | return IRQ_NONE; | |
8087 | ||
8088 | /* | |
8089 | * Stuff needs to be attented to when this function is invoked as an | |
8090 | * individual interrupt handler in MSI-X multi-message interrupt mode | |
8091 | */ | |
8092 | if (phba->intr_type == MSIX) { | |
3772a991 JS |
8093 | /* Check device state for handling interrupt */ |
8094 | if (lpfc_intr_state_check(phba)) | |
9399627f JS |
8095 | return IRQ_NONE; |
8096 | /* Need to read HA REG for FCP ring and other ring events */ | |
8097 | ha_copy = readl(phba->HAregaddr); | |
8098 | /* Clear up only attention source related to fast-path */ | |
5b75da2f | 8099 | spin_lock_irqsave(&phba->hbalock, iflag); |
a257bf90 JS |
8100 | /* |
8101 | * If there is deferred error attention, do not check for | |
8102 | * any interrupt. | |
8103 | */ | |
8104 | if (unlikely(phba->hba_flag & DEFER_ERATT)) { | |
3772a991 | 8105 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
a257bf90 JS |
8106 | return IRQ_NONE; |
8107 | } | |
9399627f JS |
8108 | writel((ha_copy & (HA_R0_CLR_MSK | HA_R1_CLR_MSK)), |
8109 | phba->HAregaddr); | |
8110 | readl(phba->HAregaddr); /* flush */ | |
5b75da2f | 8111 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
9399627f JS |
8112 | } else |
8113 | ha_copy = phba->ha_copy; | |
dea3101e | 8114 | |
8115 | /* | |
9399627f | 8116 | * Process all events on FCP ring. Take the optimized path for FCP IO. |
dea3101e | 8117 | */ |
9399627f JS |
8118 | ha_copy &= ~(phba->work_ha_mask); |
8119 | ||
8120 | status = (ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING))); | |
dea3101e | 8121 | status >>= (4*LPFC_FCP_RING); |
858c9f6c | 8122 | if (status & HA_RXMASK) |
dea3101e | 8123 | lpfc_sli_handle_fast_ring_event(phba, |
8124 | &phba->sli.ring[LPFC_FCP_RING], | |
8125 | status); | |
a4bc3379 JS |
8126 | |
8127 | if (phba->cfg_multi_ring_support == 2) { | |
8128 | /* | |
9399627f JS |
8129 | * Process all events on extra ring. Take the optimized path |
8130 | * for extra ring IO. | |
a4bc3379 | 8131 | */ |
9399627f | 8132 | status = (ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING))); |
a4bc3379 | 8133 | status >>= (4*LPFC_EXTRA_RING); |
858c9f6c | 8134 | if (status & HA_RXMASK) { |
a4bc3379 JS |
8135 | lpfc_sli_handle_fast_ring_event(phba, |
8136 | &phba->sli.ring[LPFC_EXTRA_RING], | |
8137 | status); | |
8138 | } | |
8139 | } | |
dea3101e | 8140 | return IRQ_HANDLED; |
3772a991 | 8141 | } /* lpfc_sli_fp_intr_handler */ |
9399627f JS |
8142 | |
8143 | /** | |
3772a991 | 8144 | * lpfc_sli_intr_handler - Device-level interrupt handler to SLI-3 device |
9399627f JS |
8145 | * @irq: Interrupt number. |
8146 | * @dev_id: The device context pointer. | |
8147 | * | |
3772a991 JS |
8148 | * This function is the HBA device-level interrupt handler to device with |
8149 | * SLI-3 interface spec, called from the PCI layer when either MSI or | |
8150 | * Pin-IRQ interrupt mode is enabled and there is an event in the HBA which | |
8151 | * requires driver attention. This function invokes the slow-path interrupt | |
8152 | * attention handling function and fast-path interrupt attention handling | |
8153 | * function in turn to process the relevant HBA attention events. This | |
8154 | * function is called without any lock held. It gets the hbalock to access | |
8155 | * and update SLI data structures. | |
9399627f JS |
8156 | * |
8157 | * This function returns IRQ_HANDLED when interrupt is handled, else it | |
8158 | * returns IRQ_NONE. | |
8159 | **/ | |
8160 | irqreturn_t | |
3772a991 | 8161 | lpfc_sli_intr_handler(int irq, void *dev_id) |
9399627f JS |
8162 | { |
8163 | struct lpfc_hba *phba; | |
8164 | irqreturn_t sp_irq_rc, fp_irq_rc; | |
8165 | unsigned long status1, status2; | |
8166 | ||
8167 | /* | |
8168 | * Get the driver's phba structure from the dev_id and | |
8169 | * assume the HBA is not interrupting. | |
8170 | */ | |
8171 | phba = (struct lpfc_hba *) dev_id; | |
8172 | ||
8173 | if (unlikely(!phba)) | |
8174 | return IRQ_NONE; | |
8175 | ||
3772a991 JS |
8176 | /* Check device state for handling interrupt */ |
8177 | if (lpfc_intr_state_check(phba)) | |
9399627f JS |
8178 | return IRQ_NONE; |
8179 | ||
8180 | spin_lock(&phba->hbalock); | |
8181 | phba->ha_copy = readl(phba->HAregaddr); | |
8182 | if (unlikely(!phba->ha_copy)) { | |
8183 | spin_unlock(&phba->hbalock); | |
8184 | return IRQ_NONE; | |
8185 | } else if (phba->ha_copy & HA_ERATT) { | |
8186 | if (phba->hba_flag & HBA_ERATT_HANDLED) | |
8187 | /* ERATT polling has handled ERATT */ | |
8188 | phba->ha_copy &= ~HA_ERATT; | |
8189 | else | |
8190 | /* Indicate interrupt handler handles ERATT */ | |
8191 | phba->hba_flag |= HBA_ERATT_HANDLED; | |
8192 | } | |
8193 | ||
a257bf90 JS |
8194 | /* |
8195 | * If there is deferred error attention, do not check for any interrupt. | |
8196 | */ | |
8197 | if (unlikely(phba->hba_flag & DEFER_ERATT)) { | |
8198 | spin_unlock_irq(&phba->hbalock); | |
8199 | return IRQ_NONE; | |
8200 | } | |
8201 | ||
9399627f JS |
8202 | /* Clear attention sources except link and error attentions */ |
8203 | writel((phba->ha_copy & ~(HA_LATT | HA_ERATT)), phba->HAregaddr); | |
8204 | readl(phba->HAregaddr); /* flush */ | |
8205 | spin_unlock(&phba->hbalock); | |
8206 | ||
8207 | /* | |
8208 | * Invokes slow-path host attention interrupt handling as appropriate. | |
8209 | */ | |
8210 | ||
8211 | /* status of events with mailbox and link attention */ | |
8212 | status1 = phba->ha_copy & (HA_MBATT | HA_LATT | HA_ERATT); | |
8213 | ||
8214 | /* status of events with ELS ring */ | |
8215 | status2 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING))); | |
8216 | status2 >>= (4*LPFC_ELS_RING); | |
8217 | ||
8218 | if (status1 || (status2 & HA_RXMASK)) | |
3772a991 | 8219 | sp_irq_rc = lpfc_sli_sp_intr_handler(irq, dev_id); |
9399627f JS |
8220 | else |
8221 | sp_irq_rc = IRQ_NONE; | |
8222 | ||
8223 | /* | |
8224 | * Invoke fast-path host attention interrupt handling as appropriate. | |
8225 | */ | |
8226 | ||
8227 | /* status of events with FCP ring */ | |
8228 | status1 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING))); | |
8229 | status1 >>= (4*LPFC_FCP_RING); | |
8230 | ||
8231 | /* status of events with extra ring */ | |
8232 | if (phba->cfg_multi_ring_support == 2) { | |
8233 | status2 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING))); | |
8234 | status2 >>= (4*LPFC_EXTRA_RING); | |
8235 | } else | |
8236 | status2 = 0; | |
8237 | ||
8238 | if ((status1 & HA_RXMASK) || (status2 & HA_RXMASK)) | |
3772a991 | 8239 | fp_irq_rc = lpfc_sli_fp_intr_handler(irq, dev_id); |
9399627f JS |
8240 | else |
8241 | fp_irq_rc = IRQ_NONE; | |
dea3101e | 8242 | |
9399627f JS |
8243 | /* Return device-level interrupt handling status */ |
8244 | return (sp_irq_rc == IRQ_HANDLED) ? sp_irq_rc : fp_irq_rc; | |
3772a991 | 8245 | } /* lpfc_sli_intr_handler */ |
4f774513 JS |
8246 | |
8247 | /** | |
8248 | * lpfc_sli4_fcp_xri_abort_event_proc - Process fcp xri abort event | |
8249 | * @phba: pointer to lpfc hba data structure. | |
8250 | * | |
8251 | * This routine is invoked by the worker thread to process all the pending | |
8252 | * SLI4 FCP abort XRI events. | |
8253 | **/ | |
8254 | void lpfc_sli4_fcp_xri_abort_event_proc(struct lpfc_hba *phba) | |
8255 | { | |
8256 | struct lpfc_cq_event *cq_event; | |
8257 | ||
8258 | /* First, declare the fcp xri abort event has been handled */ | |
8259 | spin_lock_irq(&phba->hbalock); | |
8260 | phba->hba_flag &= ~FCP_XRI_ABORT_EVENT; | |
8261 | spin_unlock_irq(&phba->hbalock); | |
8262 | /* Now, handle all the fcp xri abort events */ | |
8263 | while (!list_empty(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue)) { | |
8264 | /* Get the first event from the head of the event queue */ | |
8265 | spin_lock_irq(&phba->hbalock); | |
8266 | list_remove_head(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue, | |
8267 | cq_event, struct lpfc_cq_event, list); | |
8268 | spin_unlock_irq(&phba->hbalock); | |
8269 | /* Notify aborted XRI for FCP work queue */ | |
8270 | lpfc_sli4_fcp_xri_aborted(phba, &cq_event->cqe.wcqe_axri); | |
8271 | /* Free the event processed back to the free pool */ | |
8272 | lpfc_sli4_cq_event_release(phba, cq_event); | |
8273 | } | |
8274 | } | |
8275 | ||
8276 | /** | |
8277 | * lpfc_sli4_els_xri_abort_event_proc - Process els xri abort event | |
8278 | * @phba: pointer to lpfc hba data structure. | |
8279 | * | |
8280 | * This routine is invoked by the worker thread to process all the pending | |
8281 | * SLI4 els abort xri events. | |
8282 | **/ | |
8283 | void lpfc_sli4_els_xri_abort_event_proc(struct lpfc_hba *phba) | |
8284 | { | |
8285 | struct lpfc_cq_event *cq_event; | |
8286 | ||
8287 | /* First, declare the els xri abort event has been handled */ | |
8288 | spin_lock_irq(&phba->hbalock); | |
8289 | phba->hba_flag &= ~ELS_XRI_ABORT_EVENT; | |
8290 | spin_unlock_irq(&phba->hbalock); | |
8291 | /* Now, handle all the els xri abort events */ | |
8292 | while (!list_empty(&phba->sli4_hba.sp_els_xri_aborted_work_queue)) { | |
8293 | /* Get the first event from the head of the event queue */ | |
8294 | spin_lock_irq(&phba->hbalock); | |
8295 | list_remove_head(&phba->sli4_hba.sp_els_xri_aborted_work_queue, | |
8296 | cq_event, struct lpfc_cq_event, list); | |
8297 | spin_unlock_irq(&phba->hbalock); | |
8298 | /* Notify aborted XRI for ELS work queue */ | |
8299 | lpfc_sli4_els_xri_aborted(phba, &cq_event->cqe.wcqe_axri); | |
8300 | /* Free the event processed back to the free pool */ | |
8301 | lpfc_sli4_cq_event_release(phba, cq_event); | |
8302 | } | |
8303 | } | |
8304 | ||
8305 | static void | |
8306 | lpfc_sli4_iocb_param_transfer(struct lpfc_iocbq *pIocbIn, | |
8307 | struct lpfc_iocbq *pIocbOut, | |
8308 | struct lpfc_wcqe_complete *wcqe) | |
8309 | { | |
8310 | size_t offset = offsetof(struct lpfc_iocbq, iocb); | |
8311 | ||
8312 | memcpy((char *)pIocbIn + offset, (char *)pIocbOut + offset, | |
8313 | sizeof(struct lpfc_iocbq) - offset); | |
8314 | memset(&pIocbIn->sli4_info, 0, | |
8315 | sizeof(struct lpfc_sli4_rspiocb_info)); | |
8316 | /* Map WCQE parameters into irspiocb parameters */ | |
8317 | pIocbIn->iocb.ulpStatus = bf_get(lpfc_wcqe_c_status, wcqe); | |
8318 | if (pIocbOut->iocb_flag & LPFC_IO_FCP) | |
8319 | if (pIocbIn->iocb.ulpStatus == IOSTAT_FCP_RSP_ERROR) | |
8320 | pIocbIn->iocb.un.fcpi.fcpi_parm = | |
8321 | pIocbOut->iocb.un.fcpi.fcpi_parm - | |
8322 | wcqe->total_data_placed; | |
8323 | else | |
8324 | pIocbIn->iocb.un.ulpWord[4] = wcqe->parameter; | |
8325 | else | |
8326 | pIocbIn->iocb.un.ulpWord[4] = wcqe->parameter; | |
8327 | /* Load in additional WCQE parameters */ | |
8328 | pIocbIn->sli4_info.hw_status = bf_get(lpfc_wcqe_c_hw_status, wcqe); | |
8329 | pIocbIn->sli4_info.bfield = 0; | |
8330 | if (bf_get(lpfc_wcqe_c_xb, wcqe)) | |
8331 | pIocbIn->sli4_info.bfield |= LPFC_XB; | |
8332 | if (bf_get(lpfc_wcqe_c_pv, wcqe)) { | |
8333 | pIocbIn->sli4_info.bfield |= LPFC_PV; | |
8334 | pIocbIn->sli4_info.priority = | |
8335 | bf_get(lpfc_wcqe_c_priority, wcqe); | |
8336 | } | |
8337 | } | |
8338 | ||
04c68496 JS |
8339 | /** |
8340 | * lpfc_sli4_sp_handle_async_event - Handle an asynchroous event | |
8341 | * @phba: Pointer to HBA context object. | |
8342 | * @cqe: Pointer to mailbox completion queue entry. | |
8343 | * | |
8344 | * This routine process a mailbox completion queue entry with asynchrous | |
8345 | * event. | |
8346 | * | |
8347 | * Return: true if work posted to worker thread, otherwise false. | |
8348 | **/ | |
8349 | static bool | |
8350 | lpfc_sli4_sp_handle_async_event(struct lpfc_hba *phba, struct lpfc_mcqe *mcqe) | |
8351 | { | |
8352 | struct lpfc_cq_event *cq_event; | |
8353 | unsigned long iflags; | |
8354 | ||
8355 | lpfc_printf_log(phba, KERN_INFO, LOG_SLI, | |
8356 | "0392 Async Event: word0:x%x, word1:x%x, " | |
8357 | "word2:x%x, word3:x%x\n", mcqe->word0, | |
8358 | mcqe->mcqe_tag0, mcqe->mcqe_tag1, mcqe->trailer); | |
8359 | ||
8360 | /* Allocate a new internal CQ_EVENT entry */ | |
8361 | cq_event = lpfc_sli4_cq_event_alloc(phba); | |
8362 | if (!cq_event) { | |
8363 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
8364 | "0394 Failed to allocate CQ_EVENT entry\n"); | |
8365 | return false; | |
8366 | } | |
8367 | ||
8368 | /* Move the CQE into an asynchronous event entry */ | |
8369 | memcpy(&cq_event->cqe, mcqe, sizeof(struct lpfc_mcqe)); | |
8370 | spin_lock_irqsave(&phba->hbalock, iflags); | |
8371 | list_add_tail(&cq_event->list, &phba->sli4_hba.sp_asynce_work_queue); | |
8372 | /* Set the async event flag */ | |
8373 | phba->hba_flag |= ASYNC_EVENT; | |
8374 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
8375 | ||
8376 | return true; | |
8377 | } | |
8378 | ||
8379 | /** | |
8380 | * lpfc_sli4_sp_handle_mbox_event - Handle a mailbox completion event | |
8381 | * @phba: Pointer to HBA context object. | |
8382 | * @cqe: Pointer to mailbox completion queue entry. | |
8383 | * | |
8384 | * This routine process a mailbox completion queue entry with mailbox | |
8385 | * completion event. | |
8386 | * | |
8387 | * Return: true if work posted to worker thread, otherwise false. | |
8388 | **/ | |
8389 | static bool | |
8390 | lpfc_sli4_sp_handle_mbox_event(struct lpfc_hba *phba, struct lpfc_mcqe *mcqe) | |
8391 | { | |
8392 | uint32_t mcqe_status; | |
8393 | MAILBOX_t *mbox, *pmbox; | |
8394 | struct lpfc_mqe *mqe; | |
8395 | struct lpfc_vport *vport; | |
8396 | struct lpfc_nodelist *ndlp; | |
8397 | struct lpfc_dmabuf *mp; | |
8398 | unsigned long iflags; | |
8399 | LPFC_MBOXQ_t *pmb; | |
8400 | bool workposted = false; | |
8401 | int rc; | |
8402 | ||
8403 | /* If not a mailbox complete MCQE, out by checking mailbox consume */ | |
8404 | if (!bf_get(lpfc_trailer_completed, mcqe)) | |
8405 | goto out_no_mqe_complete; | |
8406 | ||
8407 | /* Get the reference to the active mbox command */ | |
8408 | spin_lock_irqsave(&phba->hbalock, iflags); | |
8409 | pmb = phba->sli.mbox_active; | |
8410 | if (unlikely(!pmb)) { | |
8411 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, | |
8412 | "1832 No pending MBOX command to handle\n"); | |
8413 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
8414 | goto out_no_mqe_complete; | |
8415 | } | |
8416 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
8417 | mqe = &pmb->u.mqe; | |
8418 | pmbox = (MAILBOX_t *)&pmb->u.mqe; | |
8419 | mbox = phba->mbox; | |
8420 | vport = pmb->vport; | |
8421 | ||
8422 | /* Reset heartbeat timer */ | |
8423 | phba->last_completion_time = jiffies; | |
8424 | del_timer(&phba->sli.mbox_tmo); | |
8425 | ||
8426 | /* Move mbox data to caller's mailbox region, do endian swapping */ | |
8427 | if (pmb->mbox_cmpl && mbox) | |
8428 | lpfc_sli_pcimem_bcopy(mbox, mqe, sizeof(struct lpfc_mqe)); | |
8429 | /* Set the mailbox status with SLI4 range 0x4000 */ | |
8430 | mcqe_status = bf_get(lpfc_mcqe_status, mcqe); | |
8431 | if (mcqe_status != MB_CQE_STATUS_SUCCESS) | |
8432 | bf_set(lpfc_mqe_status, mqe, | |
8433 | (LPFC_MBX_ERROR_RANGE | mcqe_status)); | |
8434 | ||
8435 | if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) { | |
8436 | pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG; | |
8437 | lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_MBOX_VPORT, | |
8438 | "MBOX dflt rpi: status:x%x rpi:x%x", | |
8439 | mcqe_status, | |
8440 | pmbox->un.varWords[0], 0); | |
8441 | if (mcqe_status == MB_CQE_STATUS_SUCCESS) { | |
8442 | mp = (struct lpfc_dmabuf *)(pmb->context1); | |
8443 | ndlp = (struct lpfc_nodelist *)pmb->context2; | |
8444 | /* Reg_LOGIN of dflt RPI was successful. Now lets get | |
8445 | * RID of the PPI using the same mbox buffer. | |
8446 | */ | |
8447 | lpfc_unreg_login(phba, vport->vpi, | |
8448 | pmbox->un.varWords[0], pmb); | |
8449 | pmb->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi; | |
8450 | pmb->context1 = mp; | |
8451 | pmb->context2 = ndlp; | |
8452 | pmb->vport = vport; | |
8453 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); | |
8454 | if (rc != MBX_BUSY) | |
8455 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | | |
8456 | LOG_SLI, "0385 rc should " | |
8457 | "have been MBX_BUSY\n"); | |
8458 | if (rc != MBX_NOT_FINISHED) | |
8459 | goto send_current_mbox; | |
8460 | } | |
8461 | } | |
8462 | spin_lock_irqsave(&phba->pport->work_port_lock, iflags); | |
8463 | phba->pport->work_port_events &= ~WORKER_MBOX_TMO; | |
8464 | spin_unlock_irqrestore(&phba->pport->work_port_lock, iflags); | |
8465 | ||
8466 | /* There is mailbox completion work to do */ | |
8467 | spin_lock_irqsave(&phba->hbalock, iflags); | |
8468 | __lpfc_mbox_cmpl_put(phba, pmb); | |
8469 | phba->work_ha |= HA_MBATT; | |
8470 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
8471 | workposted = true; | |
8472 | ||
8473 | send_current_mbox: | |
8474 | spin_lock_irqsave(&phba->hbalock, iflags); | |
8475 | /* Release the mailbox command posting token */ | |
8476 | phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; | |
8477 | /* Setting active mailbox pointer need to be in sync to flag clear */ | |
8478 | phba->sli.mbox_active = NULL; | |
8479 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
8480 | /* Wake up worker thread to post the next pending mailbox command */ | |
8481 | lpfc_worker_wake_up(phba); | |
8482 | out_no_mqe_complete: | |
8483 | if (bf_get(lpfc_trailer_consumed, mcqe)) | |
8484 | lpfc_sli4_mq_release(phba->sli4_hba.mbx_wq); | |
8485 | return workposted; | |
8486 | } | |
8487 | ||
8488 | /** | |
8489 | * lpfc_sli4_sp_handle_mcqe - Process a mailbox completion queue entry | |
8490 | * @phba: Pointer to HBA context object. | |
8491 | * @cqe: Pointer to mailbox completion queue entry. | |
8492 | * | |
8493 | * This routine process a mailbox completion queue entry, it invokes the | |
8494 | * proper mailbox complete handling or asynchrous event handling routine | |
8495 | * according to the MCQE's async bit. | |
8496 | * | |
8497 | * Return: true if work posted to worker thread, otherwise false. | |
8498 | **/ | |
8499 | static bool | |
8500 | lpfc_sli4_sp_handle_mcqe(struct lpfc_hba *phba, struct lpfc_cqe *cqe) | |
8501 | { | |
8502 | struct lpfc_mcqe mcqe; | |
8503 | bool workposted; | |
8504 | ||
8505 | /* Copy the mailbox MCQE and convert endian order as needed */ | |
8506 | lpfc_sli_pcimem_bcopy(cqe, &mcqe, sizeof(struct lpfc_mcqe)); | |
8507 | ||
8508 | /* Invoke the proper event handling routine */ | |
8509 | if (!bf_get(lpfc_trailer_async, &mcqe)) | |
8510 | workposted = lpfc_sli4_sp_handle_mbox_event(phba, &mcqe); | |
8511 | else | |
8512 | workposted = lpfc_sli4_sp_handle_async_event(phba, &mcqe); | |
8513 | return workposted; | |
8514 | } | |
8515 | ||
4f774513 JS |
8516 | /** |
8517 | * lpfc_sli4_sp_handle_els_wcqe - Handle els work-queue completion event | |
8518 | * @phba: Pointer to HBA context object. | |
8519 | * @wcqe: Pointer to work-queue completion queue entry. | |
8520 | * | |
8521 | * This routine handles an ELS work-queue completion event. | |
8522 | * | |
8523 | * Return: true if work posted to worker thread, otherwise false. | |
8524 | **/ | |
8525 | static bool | |
8526 | lpfc_sli4_sp_handle_els_wcqe(struct lpfc_hba *phba, | |
8527 | struct lpfc_wcqe_complete *wcqe) | |
8528 | { | |
8529 | struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING]; | |
8530 | struct lpfc_iocbq *cmdiocbq; | |
8531 | struct lpfc_iocbq *irspiocbq; | |
8532 | unsigned long iflags; | |
8533 | bool workposted = false; | |
8534 | ||
8535 | spin_lock_irqsave(&phba->hbalock, iflags); | |
8536 | pring->stats.iocb_event++; | |
8537 | /* Look up the ELS command IOCB and create pseudo response IOCB */ | |
8538 | cmdiocbq = lpfc_sli_iocbq_lookup_by_tag(phba, pring, | |
8539 | bf_get(lpfc_wcqe_c_request_tag, wcqe)); | |
8540 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
8541 | ||
8542 | if (unlikely(!cmdiocbq)) { | |
8543 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, | |
8544 | "0386 ELS complete with no corresponding " | |
8545 | "cmdiocb: iotag (%d)\n", | |
8546 | bf_get(lpfc_wcqe_c_request_tag, wcqe)); | |
8547 | return workposted; | |
8548 | } | |
8549 | ||
8550 | /* Fake the irspiocbq and copy necessary response information */ | |
8551 | irspiocbq = lpfc_sli_get_iocbq(phba); | |
8552 | if (!irspiocbq) { | |
8553 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
8554 | "0387 Failed to allocate an iocbq\n"); | |
8555 | return workposted; | |
8556 | } | |
8557 | lpfc_sli4_iocb_param_transfer(irspiocbq, cmdiocbq, wcqe); | |
8558 | ||
8559 | /* Add the irspiocb to the response IOCB work list */ | |
8560 | spin_lock_irqsave(&phba->hbalock, iflags); | |
8561 | list_add_tail(&irspiocbq->list, &phba->sli4_hba.sp_rspiocb_work_queue); | |
8562 | /* Indicate ELS ring attention */ | |
8563 | phba->work_ha |= (HA_R0ATT << (4*LPFC_ELS_RING)); | |
8564 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
8565 | workposted = true; | |
8566 | ||
8567 | return workposted; | |
8568 | } | |
8569 | ||
8570 | /** | |
8571 | * lpfc_sli4_sp_handle_rel_wcqe - Handle slow-path WQ entry consumed event | |
8572 | * @phba: Pointer to HBA context object. | |
8573 | * @wcqe: Pointer to work-queue completion queue entry. | |
8574 | * | |
8575 | * This routine handles slow-path WQ entry comsumed event by invoking the | |
8576 | * proper WQ release routine to the slow-path WQ. | |
8577 | **/ | |
8578 | static void | |
8579 | lpfc_sli4_sp_handle_rel_wcqe(struct lpfc_hba *phba, | |
8580 | struct lpfc_wcqe_release *wcqe) | |
8581 | { | |
8582 | /* Check for the slow-path ELS work queue */ | |
8583 | if (bf_get(lpfc_wcqe_r_wq_id, wcqe) == phba->sli4_hba.els_wq->queue_id) | |
8584 | lpfc_sli4_wq_release(phba->sli4_hba.els_wq, | |
8585 | bf_get(lpfc_wcqe_r_wqe_index, wcqe)); | |
8586 | else | |
8587 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, | |
8588 | "2579 Slow-path wqe consume event carries " | |
8589 | "miss-matched qid: wcqe-qid=x%x, sp-qid=x%x\n", | |
8590 | bf_get(lpfc_wcqe_r_wqe_index, wcqe), | |
8591 | phba->sli4_hba.els_wq->queue_id); | |
8592 | } | |
8593 | ||
8594 | /** | |
8595 | * lpfc_sli4_sp_handle_abort_xri_wcqe - Handle a xri abort event | |
8596 | * @phba: Pointer to HBA context object. | |
8597 | * @cq: Pointer to a WQ completion queue. | |
8598 | * @wcqe: Pointer to work-queue completion queue entry. | |
8599 | * | |
8600 | * This routine handles an XRI abort event. | |
8601 | * | |
8602 | * Return: true if work posted to worker thread, otherwise false. | |
8603 | **/ | |
8604 | static bool | |
8605 | lpfc_sli4_sp_handle_abort_xri_wcqe(struct lpfc_hba *phba, | |
8606 | struct lpfc_queue *cq, | |
8607 | struct sli4_wcqe_xri_aborted *wcqe) | |
8608 | { | |
8609 | bool workposted = false; | |
8610 | struct lpfc_cq_event *cq_event; | |
8611 | unsigned long iflags; | |
8612 | ||
8613 | /* Allocate a new internal CQ_EVENT entry */ | |
8614 | cq_event = lpfc_sli4_cq_event_alloc(phba); | |
8615 | if (!cq_event) { | |
8616 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
8617 | "0602 Failed to allocate CQ_EVENT entry\n"); | |
8618 | return false; | |
8619 | } | |
8620 | ||
8621 | /* Move the CQE into the proper xri abort event list */ | |
8622 | memcpy(&cq_event->cqe, wcqe, sizeof(struct sli4_wcqe_xri_aborted)); | |
8623 | switch (cq->subtype) { | |
8624 | case LPFC_FCP: | |
8625 | spin_lock_irqsave(&phba->hbalock, iflags); | |
8626 | list_add_tail(&cq_event->list, | |
8627 | &phba->sli4_hba.sp_fcp_xri_aborted_work_queue); | |
8628 | /* Set the fcp xri abort event flag */ | |
8629 | phba->hba_flag |= FCP_XRI_ABORT_EVENT; | |
8630 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
8631 | workposted = true; | |
8632 | break; | |
8633 | case LPFC_ELS: | |
8634 | spin_lock_irqsave(&phba->hbalock, iflags); | |
8635 | list_add_tail(&cq_event->list, | |
8636 | &phba->sli4_hba.sp_els_xri_aborted_work_queue); | |
8637 | /* Set the els xri abort event flag */ | |
8638 | phba->hba_flag |= ELS_XRI_ABORT_EVENT; | |
8639 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
8640 | workposted = true; | |
8641 | break; | |
8642 | default: | |
8643 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
8644 | "0603 Invalid work queue CQE subtype (x%x)\n", | |
8645 | cq->subtype); | |
8646 | workposted = false; | |
8647 | break; | |
8648 | } | |
8649 | return workposted; | |
8650 | } | |
8651 | ||
8652 | /** | |
8653 | * lpfc_sli4_sp_handle_wcqe - Process a work-queue completion queue entry | |
8654 | * @phba: Pointer to HBA context object. | |
8655 | * @cq: Pointer to the completion queue. | |
8656 | * @wcqe: Pointer to a completion queue entry. | |
8657 | * | |
8658 | * This routine process a slow-path work-queue completion queue entry. | |
8659 | * | |
8660 | * Return: true if work posted to worker thread, otherwise false. | |
8661 | **/ | |
8662 | static bool | |
8663 | lpfc_sli4_sp_handle_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq, | |
8664 | struct lpfc_cqe *cqe) | |
8665 | { | |
8666 | struct lpfc_wcqe_complete wcqe; | |
8667 | bool workposted = false; | |
8668 | ||
8669 | /* Copy the work queue CQE and convert endian order if needed */ | |
8670 | lpfc_sli_pcimem_bcopy(cqe, &wcqe, sizeof(struct lpfc_cqe)); | |
8671 | ||
8672 | /* Check and process for different type of WCQE and dispatch */ | |
8673 | switch (bf_get(lpfc_wcqe_c_code, &wcqe)) { | |
8674 | case CQE_CODE_COMPL_WQE: | |
8675 | /* Process the WQ complete event */ | |
8676 | workposted = lpfc_sli4_sp_handle_els_wcqe(phba, | |
8677 | (struct lpfc_wcqe_complete *)&wcqe); | |
8678 | break; | |
8679 | case CQE_CODE_RELEASE_WQE: | |
8680 | /* Process the WQ release event */ | |
8681 | lpfc_sli4_sp_handle_rel_wcqe(phba, | |
8682 | (struct lpfc_wcqe_release *)&wcqe); | |
8683 | break; | |
8684 | case CQE_CODE_XRI_ABORTED: | |
8685 | /* Process the WQ XRI abort event */ | |
8686 | workposted = lpfc_sli4_sp_handle_abort_xri_wcqe(phba, cq, | |
8687 | (struct sli4_wcqe_xri_aborted *)&wcqe); | |
8688 | break; | |
8689 | default: | |
8690 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
8691 | "0388 Not a valid WCQE code: x%x\n", | |
8692 | bf_get(lpfc_wcqe_c_code, &wcqe)); | |
8693 | break; | |
8694 | } | |
8695 | return workposted; | |
8696 | } | |
8697 | ||
8698 | /** | |
8699 | * lpfc_sli4_sp_handle_rcqe - Process a receive-queue completion queue entry | |
8700 | * @phba: Pointer to HBA context object. | |
8701 | * @rcqe: Pointer to receive-queue completion queue entry. | |
8702 | * | |
8703 | * This routine process a receive-queue completion queue entry. | |
8704 | * | |
8705 | * Return: true if work posted to worker thread, otherwise false. | |
8706 | **/ | |
8707 | static bool | |
8708 | lpfc_sli4_sp_handle_rcqe(struct lpfc_hba *phba, struct lpfc_cqe *cqe) | |
8709 | { | |
8710 | struct lpfc_rcqe rcqe; | |
8711 | bool workposted = false; | |
8712 | struct lpfc_queue *hrq = phba->sli4_hba.hdr_rq; | |
8713 | struct lpfc_queue *drq = phba->sli4_hba.dat_rq; | |
8714 | struct hbq_dmabuf *dma_buf; | |
8715 | uint32_t status; | |
8716 | unsigned long iflags; | |
8717 | ||
8718 | /* Copy the receive queue CQE and convert endian order if needed */ | |
8719 | lpfc_sli_pcimem_bcopy(cqe, &rcqe, sizeof(struct lpfc_rcqe)); | |
8720 | lpfc_sli4_rq_release(hrq, drq); | |
8721 | if (bf_get(lpfc_rcqe_code, &rcqe) != CQE_CODE_RECEIVE) | |
8722 | goto out; | |
8723 | if (bf_get(lpfc_rcqe_rq_id, &rcqe) != hrq->queue_id) | |
8724 | goto out; | |
8725 | ||
8726 | status = bf_get(lpfc_rcqe_status, &rcqe); | |
8727 | switch (status) { | |
8728 | case FC_STATUS_RQ_BUF_LEN_EXCEEDED: | |
8729 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
8730 | "2537 Receive Frame Truncated!!\n"); | |
8731 | case FC_STATUS_RQ_SUCCESS: | |
8732 | spin_lock_irqsave(&phba->hbalock, iflags); | |
8733 | dma_buf = lpfc_sli_hbqbuf_get(&phba->hbqs[0].hbq_buffer_list); | |
8734 | if (!dma_buf) { | |
8735 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
8736 | goto out; | |
8737 | } | |
8738 | memcpy(&dma_buf->rcqe, &rcqe, sizeof(rcqe)); | |
8739 | /* save off the frame for the word thread to process */ | |
8740 | list_add_tail(&dma_buf->dbuf.list, &phba->rb_pend_list); | |
8741 | /* Frame received */ | |
8742 | phba->hba_flag |= HBA_RECEIVE_BUFFER; | |
8743 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
8744 | workposted = true; | |
8745 | break; | |
8746 | case FC_STATUS_INSUFF_BUF_NEED_BUF: | |
8747 | case FC_STATUS_INSUFF_BUF_FRM_DISC: | |
8748 | /* Post more buffers if possible */ | |
8749 | spin_lock_irqsave(&phba->hbalock, iflags); | |
8750 | phba->hba_flag |= HBA_POST_RECEIVE_BUFFER; | |
8751 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
8752 | workposted = true; | |
8753 | break; | |
8754 | } | |
8755 | out: | |
8756 | return workposted; | |
8757 | ||
8758 | } | |
8759 | ||
8760 | /** | |
8761 | * lpfc_sli4_sp_handle_eqe - Process a slow-path event queue entry | |
8762 | * @phba: Pointer to HBA context object. | |
8763 | * @eqe: Pointer to fast-path event queue entry. | |
8764 | * | |
8765 | * This routine process a event queue entry from the slow-path event queue. | |
8766 | * It will check the MajorCode and MinorCode to determine this is for a | |
8767 | * completion event on a completion queue, if not, an error shall be logged | |
8768 | * and just return. Otherwise, it will get to the corresponding completion | |
8769 | * queue and process all the entries on that completion queue, rearm the | |
8770 | * completion queue, and then return. | |
8771 | * | |
8772 | **/ | |
8773 | static void | |
8774 | lpfc_sli4_sp_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe) | |
8775 | { | |
8776 | struct lpfc_queue *cq = NULL, *childq, *speq; | |
8777 | struct lpfc_cqe *cqe; | |
8778 | bool workposted = false; | |
8779 | int ecount = 0; | |
8780 | uint16_t cqid; | |
8781 | ||
8782 | if (bf_get(lpfc_eqe_major_code, eqe) != 0 || | |
8783 | bf_get(lpfc_eqe_minor_code, eqe) != 0) { | |
8784 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
8785 | "0359 Not a valid slow-path completion " | |
8786 | "event: majorcode=x%x, minorcode=x%x\n", | |
8787 | bf_get(lpfc_eqe_major_code, eqe), | |
8788 | bf_get(lpfc_eqe_minor_code, eqe)); | |
8789 | return; | |
8790 | } | |
8791 | ||
8792 | /* Get the reference to the corresponding CQ */ | |
8793 | cqid = bf_get(lpfc_eqe_resource_id, eqe); | |
8794 | ||
8795 | /* Search for completion queue pointer matching this cqid */ | |
8796 | speq = phba->sli4_hba.sp_eq; | |
8797 | list_for_each_entry(childq, &speq->child_list, list) { | |
8798 | if (childq->queue_id == cqid) { | |
8799 | cq = childq; | |
8800 | break; | |
8801 | } | |
8802 | } | |
8803 | if (unlikely(!cq)) { | |
8804 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
8805 | "0365 Slow-path CQ identifier (%d) does " | |
8806 | "not exist\n", cqid); | |
8807 | return; | |
8808 | } | |
8809 | ||
8810 | /* Process all the entries to the CQ */ | |
8811 | switch (cq->type) { | |
8812 | case LPFC_MCQ: | |
8813 | while ((cqe = lpfc_sli4_cq_get(cq))) { | |
8814 | workposted |= lpfc_sli4_sp_handle_mcqe(phba, cqe); | |
8815 | if (!(++ecount % LPFC_GET_QE_REL_INT)) | |
8816 | lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM); | |
8817 | } | |
8818 | break; | |
8819 | case LPFC_WCQ: | |
8820 | while ((cqe = lpfc_sli4_cq_get(cq))) { | |
8821 | workposted |= lpfc_sli4_sp_handle_wcqe(phba, cq, cqe); | |
8822 | if (!(++ecount % LPFC_GET_QE_REL_INT)) | |
8823 | lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM); | |
8824 | } | |
8825 | break; | |
8826 | case LPFC_RCQ: | |
8827 | while ((cqe = lpfc_sli4_cq_get(cq))) { | |
8828 | workposted |= lpfc_sli4_sp_handle_rcqe(phba, cqe); | |
8829 | if (!(++ecount % LPFC_GET_QE_REL_INT)) | |
8830 | lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM); | |
8831 | } | |
8832 | break; | |
8833 | default: | |
8834 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
8835 | "0370 Invalid completion queue type (%d)\n", | |
8836 | cq->type); | |
8837 | return; | |
8838 | } | |
8839 | ||
8840 | /* Catch the no cq entry condition, log an error */ | |
8841 | if (unlikely(ecount == 0)) | |
8842 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
8843 | "0371 No entry from the CQ: identifier " | |
8844 | "(x%x), type (%d)\n", cq->queue_id, cq->type); | |
8845 | ||
8846 | /* In any case, flash and re-arm the RCQ */ | |
8847 | lpfc_sli4_cq_release(cq, LPFC_QUEUE_REARM); | |
8848 | ||
8849 | /* wake up worker thread if there are works to be done */ | |
8850 | if (workposted) | |
8851 | lpfc_worker_wake_up(phba); | |
8852 | } | |
8853 | ||
8854 | /** | |
8855 | * lpfc_sli4_fp_handle_fcp_wcqe - Process fast-path work queue completion entry | |
8856 | * @eqe: Pointer to fast-path completion queue entry. | |
8857 | * | |
8858 | * This routine process a fast-path work queue completion entry from fast-path | |
8859 | * event queue for FCP command response completion. | |
8860 | **/ | |
8861 | static void | |
8862 | lpfc_sli4_fp_handle_fcp_wcqe(struct lpfc_hba *phba, | |
8863 | struct lpfc_wcqe_complete *wcqe) | |
8864 | { | |
8865 | struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_FCP_RING]; | |
8866 | struct lpfc_iocbq *cmdiocbq; | |
8867 | struct lpfc_iocbq irspiocbq; | |
8868 | unsigned long iflags; | |
8869 | ||
8870 | spin_lock_irqsave(&phba->hbalock, iflags); | |
8871 | pring->stats.iocb_event++; | |
8872 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
8873 | ||
8874 | /* Check for response status */ | |
8875 | if (unlikely(bf_get(lpfc_wcqe_c_status, wcqe))) { | |
8876 | /* If resource errors reported from HBA, reduce queue | |
8877 | * depth of the SCSI device. | |
8878 | */ | |
8879 | if ((bf_get(lpfc_wcqe_c_status, wcqe) == | |
8880 | IOSTAT_LOCAL_REJECT) && | |
8881 | (wcqe->parameter == IOERR_NO_RESOURCES)) { | |
8882 | phba->lpfc_rampdown_queue_depth(phba); | |
8883 | } | |
8884 | /* Log the error status */ | |
8885 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, | |
8886 | "0373 FCP complete error: status=x%x, " | |
8887 | "hw_status=x%x, total_data_specified=%d, " | |
8888 | "parameter=x%x, word3=x%x\n", | |
8889 | bf_get(lpfc_wcqe_c_status, wcqe), | |
8890 | bf_get(lpfc_wcqe_c_hw_status, wcqe), | |
8891 | wcqe->total_data_placed, wcqe->parameter, | |
8892 | wcqe->word3); | |
8893 | } | |
8894 | ||
8895 | /* Look up the FCP command IOCB and create pseudo response IOCB */ | |
8896 | spin_lock_irqsave(&phba->hbalock, iflags); | |
8897 | cmdiocbq = lpfc_sli_iocbq_lookup_by_tag(phba, pring, | |
8898 | bf_get(lpfc_wcqe_c_request_tag, wcqe)); | |
8899 | spin_unlock_irqrestore(&phba->hbalock, iflags); | |
8900 | if (unlikely(!cmdiocbq)) { | |
8901 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, | |
8902 | "0374 FCP complete with no corresponding " | |
8903 | "cmdiocb: iotag (%d)\n", | |
8904 | bf_get(lpfc_wcqe_c_request_tag, wcqe)); | |
8905 | return; | |
8906 | } | |
8907 | if (unlikely(!cmdiocbq->iocb_cmpl)) { | |
8908 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, | |
8909 | "0375 FCP cmdiocb not callback function " | |
8910 | "iotag: (%d)\n", | |
8911 | bf_get(lpfc_wcqe_c_request_tag, wcqe)); | |
8912 | return; | |
8913 | } | |
8914 | ||
8915 | /* Fake the irspiocb and copy necessary response information */ | |
8916 | lpfc_sli4_iocb_param_transfer(&irspiocbq, cmdiocbq, wcqe); | |
8917 | ||
8918 | /* Pass the cmd_iocb and the rsp state to the upper layer */ | |
8919 | (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, &irspiocbq); | |
8920 | } | |
8921 | ||
8922 | /** | |
8923 | * lpfc_sli4_fp_handle_rel_wcqe - Handle fast-path WQ entry consumed event | |
8924 | * @phba: Pointer to HBA context object. | |
8925 | * @cq: Pointer to completion queue. | |
8926 | * @wcqe: Pointer to work-queue completion queue entry. | |
8927 | * | |
8928 | * This routine handles an fast-path WQ entry comsumed event by invoking the | |
8929 | * proper WQ release routine to the slow-path WQ. | |
8930 | **/ | |
8931 | static void | |
8932 | lpfc_sli4_fp_handle_rel_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq, | |
8933 | struct lpfc_wcqe_release *wcqe) | |
8934 | { | |
8935 | struct lpfc_queue *childwq; | |
8936 | bool wqid_matched = false; | |
8937 | uint16_t fcp_wqid; | |
8938 | ||
8939 | /* Check for fast-path FCP work queue release */ | |
8940 | fcp_wqid = bf_get(lpfc_wcqe_r_wq_id, wcqe); | |
8941 | list_for_each_entry(childwq, &cq->child_list, list) { | |
8942 | if (childwq->queue_id == fcp_wqid) { | |
8943 | lpfc_sli4_wq_release(childwq, | |
8944 | bf_get(lpfc_wcqe_r_wqe_index, wcqe)); | |
8945 | wqid_matched = true; | |
8946 | break; | |
8947 | } | |
8948 | } | |
8949 | /* Report warning log message if no match found */ | |
8950 | if (wqid_matched != true) | |
8951 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, | |
8952 | "2580 Fast-path wqe consume event carries " | |
8953 | "miss-matched qid: wcqe-qid=x%x\n", fcp_wqid); | |
8954 | } | |
8955 | ||
8956 | /** | |
8957 | * lpfc_sli4_fp_handle_wcqe - Process fast-path work queue completion entry | |
8958 | * @cq: Pointer to the completion queue. | |
8959 | * @eqe: Pointer to fast-path completion queue entry. | |
8960 | * | |
8961 | * This routine process a fast-path work queue completion entry from fast-path | |
8962 | * event queue for FCP command response completion. | |
8963 | **/ | |
8964 | static int | |
8965 | lpfc_sli4_fp_handle_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq, | |
8966 | struct lpfc_cqe *cqe) | |
8967 | { | |
8968 | struct lpfc_wcqe_release wcqe; | |
8969 | bool workposted = false; | |
8970 | ||
8971 | /* Copy the work queue CQE and convert endian order if needed */ | |
8972 | lpfc_sli_pcimem_bcopy(cqe, &wcqe, sizeof(struct lpfc_cqe)); | |
8973 | ||
8974 | /* Check and process for different type of WCQE and dispatch */ | |
8975 | switch (bf_get(lpfc_wcqe_c_code, &wcqe)) { | |
8976 | case CQE_CODE_COMPL_WQE: | |
8977 | /* Process the WQ complete event */ | |
8978 | lpfc_sli4_fp_handle_fcp_wcqe(phba, | |
8979 | (struct lpfc_wcqe_complete *)&wcqe); | |
8980 | break; | |
8981 | case CQE_CODE_RELEASE_WQE: | |
8982 | /* Process the WQ release event */ | |
8983 | lpfc_sli4_fp_handle_rel_wcqe(phba, cq, | |
8984 | (struct lpfc_wcqe_release *)&wcqe); | |
8985 | break; | |
8986 | case CQE_CODE_XRI_ABORTED: | |
8987 | /* Process the WQ XRI abort event */ | |
8988 | workposted = lpfc_sli4_sp_handle_abort_xri_wcqe(phba, cq, | |
8989 | (struct sli4_wcqe_xri_aborted *)&wcqe); | |
8990 | break; | |
8991 | default: | |
8992 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
8993 | "0144 Not a valid WCQE code: x%x\n", | |
8994 | bf_get(lpfc_wcqe_c_code, &wcqe)); | |
8995 | break; | |
8996 | } | |
8997 | return workposted; | |
8998 | } | |
8999 | ||
9000 | /** | |
9001 | * lpfc_sli4_fp_handle_eqe - Process a fast-path event queue entry | |
9002 | * @phba: Pointer to HBA context object. | |
9003 | * @eqe: Pointer to fast-path event queue entry. | |
9004 | * | |
9005 | * This routine process a event queue entry from the fast-path event queue. | |
9006 | * It will check the MajorCode and MinorCode to determine this is for a | |
9007 | * completion event on a completion queue, if not, an error shall be logged | |
9008 | * and just return. Otherwise, it will get to the corresponding completion | |
9009 | * queue and process all the entries on the completion queue, rearm the | |
9010 | * completion queue, and then return. | |
9011 | **/ | |
9012 | static void | |
9013 | lpfc_sli4_fp_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe, | |
9014 | uint32_t fcp_cqidx) | |
9015 | { | |
9016 | struct lpfc_queue *cq; | |
9017 | struct lpfc_cqe *cqe; | |
9018 | bool workposted = false; | |
9019 | uint16_t cqid; | |
9020 | int ecount = 0; | |
9021 | ||
9022 | if (unlikely(bf_get(lpfc_eqe_major_code, eqe) != 0) || | |
9023 | unlikely(bf_get(lpfc_eqe_minor_code, eqe) != 0)) { | |
9024 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
9025 | "0366 Not a valid fast-path completion " | |
9026 | "event: majorcode=x%x, minorcode=x%x\n", | |
9027 | bf_get(lpfc_eqe_major_code, eqe), | |
9028 | bf_get(lpfc_eqe_minor_code, eqe)); | |
9029 | return; | |
9030 | } | |
9031 | ||
9032 | cq = phba->sli4_hba.fcp_cq[fcp_cqidx]; | |
9033 | if (unlikely(!cq)) { | |
9034 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
9035 | "0367 Fast-path completion queue does not " | |
9036 | "exist\n"); | |
9037 | return; | |
9038 | } | |
9039 | ||
9040 | /* Get the reference to the corresponding CQ */ | |
9041 | cqid = bf_get(lpfc_eqe_resource_id, eqe); | |
9042 | if (unlikely(cqid != cq->queue_id)) { | |
9043 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
9044 | "0368 Miss-matched fast-path completion " | |
9045 | "queue identifier: eqcqid=%d, fcpcqid=%d\n", | |
9046 | cqid, cq->queue_id); | |
9047 | return; | |
9048 | } | |
9049 | ||
9050 | /* Process all the entries to the CQ */ | |
9051 | while ((cqe = lpfc_sli4_cq_get(cq))) { | |
9052 | workposted |= lpfc_sli4_fp_handle_wcqe(phba, cq, cqe); | |
9053 | if (!(++ecount % LPFC_GET_QE_REL_INT)) | |
9054 | lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM); | |
9055 | } | |
9056 | ||
9057 | /* Catch the no cq entry condition */ | |
9058 | if (unlikely(ecount == 0)) | |
9059 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
9060 | "0369 No entry from fast-path completion " | |
9061 | "queue fcpcqid=%d\n", cq->queue_id); | |
9062 | ||
9063 | /* In any case, flash and re-arm the CQ */ | |
9064 | lpfc_sli4_cq_release(cq, LPFC_QUEUE_REARM); | |
9065 | ||
9066 | /* wake up worker thread if there are works to be done */ | |
9067 | if (workposted) | |
9068 | lpfc_worker_wake_up(phba); | |
9069 | } | |
9070 | ||
9071 | static void | |
9072 | lpfc_sli4_eq_flush(struct lpfc_hba *phba, struct lpfc_queue *eq) | |
9073 | { | |
9074 | struct lpfc_eqe *eqe; | |
9075 | ||
9076 | /* walk all the EQ entries and drop on the floor */ | |
9077 | while ((eqe = lpfc_sli4_eq_get(eq))) | |
9078 | ; | |
9079 | ||
9080 | /* Clear and re-arm the EQ */ | |
9081 | lpfc_sli4_eq_release(eq, LPFC_QUEUE_REARM); | |
9082 | } | |
9083 | ||
9084 | /** | |
9085 | * lpfc_sli4_sp_intr_handler - Slow-path interrupt handler to SLI-4 device | |
9086 | * @irq: Interrupt number. | |
9087 | * @dev_id: The device context pointer. | |
9088 | * | |
9089 | * This function is directly called from the PCI layer as an interrupt | |
9090 | * service routine when device with SLI-4 interface spec is enabled with | |
9091 | * MSI-X multi-message interrupt mode and there are slow-path events in | |
9092 | * the HBA. However, when the device is enabled with either MSI or Pin-IRQ | |
9093 | * interrupt mode, this function is called as part of the device-level | |
9094 | * interrupt handler. When the PCI slot is in error recovery or the HBA is | |
9095 | * undergoing initialization, the interrupt handler will not process the | |
9096 | * interrupt. The link attention and ELS ring attention events are handled | |
9097 | * by the worker thread. The interrupt handler signals the worker thread | |
9098 | * and returns for these events. This function is called without any lock | |
9099 | * held. It gets the hbalock to access and update SLI data structures. | |
9100 | * | |
9101 | * This function returns IRQ_HANDLED when interrupt is handled else it | |
9102 | * returns IRQ_NONE. | |
9103 | **/ | |
9104 | irqreturn_t | |
9105 | lpfc_sli4_sp_intr_handler(int irq, void *dev_id) | |
9106 | { | |
9107 | struct lpfc_hba *phba; | |
9108 | struct lpfc_queue *speq; | |
9109 | struct lpfc_eqe *eqe; | |
9110 | unsigned long iflag; | |
9111 | int ecount = 0; | |
9112 | ||
9113 | /* | |
9114 | * Get the driver's phba structure from the dev_id | |
9115 | */ | |
9116 | phba = (struct lpfc_hba *)dev_id; | |
9117 | ||
9118 | if (unlikely(!phba)) | |
9119 | return IRQ_NONE; | |
9120 | ||
9121 | /* Get to the EQ struct associated with this vector */ | |
9122 | speq = phba->sli4_hba.sp_eq; | |
9123 | ||
9124 | /* Check device state for handling interrupt */ | |
9125 | if (unlikely(lpfc_intr_state_check(phba))) { | |
9126 | /* Check again for link_state with lock held */ | |
9127 | spin_lock_irqsave(&phba->hbalock, iflag); | |
9128 | if (phba->link_state < LPFC_LINK_DOWN) | |
9129 | /* Flush, clear interrupt, and rearm the EQ */ | |
9130 | lpfc_sli4_eq_flush(phba, speq); | |
9131 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
9132 | return IRQ_NONE; | |
9133 | } | |
9134 | ||
9135 | /* | |
9136 | * Process all the event on FCP slow-path EQ | |
9137 | */ | |
9138 | while ((eqe = lpfc_sli4_eq_get(speq))) { | |
9139 | lpfc_sli4_sp_handle_eqe(phba, eqe); | |
9140 | if (!(++ecount % LPFC_GET_QE_REL_INT)) | |
9141 | lpfc_sli4_eq_release(speq, LPFC_QUEUE_NOARM); | |
9142 | } | |
9143 | ||
9144 | /* Always clear and re-arm the slow-path EQ */ | |
9145 | lpfc_sli4_eq_release(speq, LPFC_QUEUE_REARM); | |
9146 | ||
9147 | /* Catch the no cq entry condition */ | |
9148 | if (unlikely(ecount == 0)) { | |
9149 | if (phba->intr_type == MSIX) | |
9150 | /* MSI-X treated interrupt served as no EQ share INT */ | |
9151 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, | |
9152 | "0357 MSI-X interrupt with no EQE\n"); | |
9153 | else | |
9154 | /* Non MSI-X treated on interrupt as EQ share INT */ | |
9155 | return IRQ_NONE; | |
9156 | } | |
9157 | ||
9158 | return IRQ_HANDLED; | |
9159 | } /* lpfc_sli4_sp_intr_handler */ | |
9160 | ||
9161 | /** | |
9162 | * lpfc_sli4_fp_intr_handler - Fast-path interrupt handler to SLI-4 device | |
9163 | * @irq: Interrupt number. | |
9164 | * @dev_id: The device context pointer. | |
9165 | * | |
9166 | * This function is directly called from the PCI layer as an interrupt | |
9167 | * service routine when device with SLI-4 interface spec is enabled with | |
9168 | * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB | |
9169 | * ring event in the HBA. However, when the device is enabled with either | |
9170 | * MSI or Pin-IRQ interrupt mode, this function is called as part of the | |
9171 | * device-level interrupt handler. When the PCI slot is in error recovery | |
9172 | * or the HBA is undergoing initialization, the interrupt handler will not | |
9173 | * process the interrupt. The SCSI FCP fast-path ring event are handled in | |
9174 | * the intrrupt context. This function is called without any lock held. | |
9175 | * It gets the hbalock to access and update SLI data structures. Note that, | |
9176 | * the FCP EQ to FCP CQ are one-to-one map such that the FCP EQ index is | |
9177 | * equal to that of FCP CQ index. | |
9178 | * | |
9179 | * This function returns IRQ_HANDLED when interrupt is handled else it | |
9180 | * returns IRQ_NONE. | |
9181 | **/ | |
9182 | irqreturn_t | |
9183 | lpfc_sli4_fp_intr_handler(int irq, void *dev_id) | |
9184 | { | |
9185 | struct lpfc_hba *phba; | |
9186 | struct lpfc_fcp_eq_hdl *fcp_eq_hdl; | |
9187 | struct lpfc_queue *fpeq; | |
9188 | struct lpfc_eqe *eqe; | |
9189 | unsigned long iflag; | |
9190 | int ecount = 0; | |
9191 | uint32_t fcp_eqidx; | |
9192 | ||
9193 | /* Get the driver's phba structure from the dev_id */ | |
9194 | fcp_eq_hdl = (struct lpfc_fcp_eq_hdl *)dev_id; | |
9195 | phba = fcp_eq_hdl->phba; | |
9196 | fcp_eqidx = fcp_eq_hdl->idx; | |
9197 | ||
9198 | if (unlikely(!phba)) | |
9199 | return IRQ_NONE; | |
9200 | ||
9201 | /* Get to the EQ struct associated with this vector */ | |
9202 | fpeq = phba->sli4_hba.fp_eq[fcp_eqidx]; | |
9203 | ||
9204 | /* Check device state for handling interrupt */ | |
9205 | if (unlikely(lpfc_intr_state_check(phba))) { | |
9206 | /* Check again for link_state with lock held */ | |
9207 | spin_lock_irqsave(&phba->hbalock, iflag); | |
9208 | if (phba->link_state < LPFC_LINK_DOWN) | |
9209 | /* Flush, clear interrupt, and rearm the EQ */ | |
9210 | lpfc_sli4_eq_flush(phba, fpeq); | |
9211 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
9212 | return IRQ_NONE; | |
9213 | } | |
9214 | ||
9215 | /* | |
9216 | * Process all the event on FCP fast-path EQ | |
9217 | */ | |
9218 | while ((eqe = lpfc_sli4_eq_get(fpeq))) { | |
9219 | lpfc_sli4_fp_handle_eqe(phba, eqe, fcp_eqidx); | |
9220 | if (!(++ecount % LPFC_GET_QE_REL_INT)) | |
9221 | lpfc_sli4_eq_release(fpeq, LPFC_QUEUE_NOARM); | |
9222 | } | |
9223 | ||
9224 | /* Always clear and re-arm the fast-path EQ */ | |
9225 | lpfc_sli4_eq_release(fpeq, LPFC_QUEUE_REARM); | |
9226 | ||
9227 | if (unlikely(ecount == 0)) { | |
9228 | if (phba->intr_type == MSIX) | |
9229 | /* MSI-X treated interrupt served as no EQ share INT */ | |
9230 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, | |
9231 | "0358 MSI-X interrupt with no EQE\n"); | |
9232 | else | |
9233 | /* Non MSI-X treated on interrupt as EQ share INT */ | |
9234 | return IRQ_NONE; | |
9235 | } | |
9236 | ||
9237 | return IRQ_HANDLED; | |
9238 | } /* lpfc_sli4_fp_intr_handler */ | |
9239 | ||
9240 | /** | |
9241 | * lpfc_sli4_intr_handler - Device-level interrupt handler for SLI-4 device | |
9242 | * @irq: Interrupt number. | |
9243 | * @dev_id: The device context pointer. | |
9244 | * | |
9245 | * This function is the device-level interrupt handler to device with SLI-4 | |
9246 | * interface spec, called from the PCI layer when either MSI or Pin-IRQ | |
9247 | * interrupt mode is enabled and there is an event in the HBA which requires | |
9248 | * driver attention. This function invokes the slow-path interrupt attention | |
9249 | * handling function and fast-path interrupt attention handling function in | |
9250 | * turn to process the relevant HBA attention events. This function is called | |
9251 | * without any lock held. It gets the hbalock to access and update SLI data | |
9252 | * structures. | |
9253 | * | |
9254 | * This function returns IRQ_HANDLED when interrupt is handled, else it | |
9255 | * returns IRQ_NONE. | |
9256 | **/ | |
9257 | irqreturn_t | |
9258 | lpfc_sli4_intr_handler(int irq, void *dev_id) | |
9259 | { | |
9260 | struct lpfc_hba *phba; | |
9261 | irqreturn_t sp_irq_rc, fp_irq_rc; | |
9262 | bool fp_handled = false; | |
9263 | uint32_t fcp_eqidx; | |
9264 | ||
9265 | /* Get the driver's phba structure from the dev_id */ | |
9266 | phba = (struct lpfc_hba *)dev_id; | |
9267 | ||
9268 | if (unlikely(!phba)) | |
9269 | return IRQ_NONE; | |
9270 | ||
9271 | /* | |
9272 | * Invokes slow-path host attention interrupt handling as appropriate. | |
9273 | */ | |
9274 | sp_irq_rc = lpfc_sli4_sp_intr_handler(irq, dev_id); | |
9275 | ||
9276 | /* | |
9277 | * Invoke fast-path host attention interrupt handling as appropriate. | |
9278 | */ | |
9279 | for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) { | |
9280 | fp_irq_rc = lpfc_sli4_fp_intr_handler(irq, | |
9281 | &phba->sli4_hba.fcp_eq_hdl[fcp_eqidx]); | |
9282 | if (fp_irq_rc == IRQ_HANDLED) | |
9283 | fp_handled |= true; | |
9284 | } | |
9285 | ||
9286 | return (fp_handled == true) ? IRQ_HANDLED : sp_irq_rc; | |
9287 | } /* lpfc_sli4_intr_handler */ | |
9288 | ||
9289 | /** | |
9290 | * lpfc_sli4_queue_free - free a queue structure and associated memory | |
9291 | * @queue: The queue structure to free. | |
9292 | * | |
9293 | * This function frees a queue structure and the DMAable memeory used for | |
9294 | * the host resident queue. This function must be called after destroying the | |
9295 | * queue on the HBA. | |
9296 | **/ | |
9297 | void | |
9298 | lpfc_sli4_queue_free(struct lpfc_queue *queue) | |
9299 | { | |
9300 | struct lpfc_dmabuf *dmabuf; | |
9301 | ||
9302 | if (!queue) | |
9303 | return; | |
9304 | ||
9305 | while (!list_empty(&queue->page_list)) { | |
9306 | list_remove_head(&queue->page_list, dmabuf, struct lpfc_dmabuf, | |
9307 | list); | |
9308 | dma_free_coherent(&queue->phba->pcidev->dev, PAGE_SIZE, | |
9309 | dmabuf->virt, dmabuf->phys); | |
9310 | kfree(dmabuf); | |
9311 | } | |
9312 | kfree(queue); | |
9313 | return; | |
9314 | } | |
9315 | ||
9316 | /** | |
9317 | * lpfc_sli4_queue_alloc - Allocate and initialize a queue structure | |
9318 | * @phba: The HBA that this queue is being created on. | |
9319 | * @entry_size: The size of each queue entry for this queue. | |
9320 | * @entry count: The number of entries that this queue will handle. | |
9321 | * | |
9322 | * This function allocates a queue structure and the DMAable memory used for | |
9323 | * the host resident queue. This function must be called before creating the | |
9324 | * queue on the HBA. | |
9325 | **/ | |
9326 | struct lpfc_queue * | |
9327 | lpfc_sli4_queue_alloc(struct lpfc_hba *phba, uint32_t entry_size, | |
9328 | uint32_t entry_count) | |
9329 | { | |
9330 | struct lpfc_queue *queue; | |
9331 | struct lpfc_dmabuf *dmabuf; | |
9332 | int x, total_qe_count; | |
9333 | void *dma_pointer; | |
9334 | ||
9335 | ||
9336 | queue = kzalloc(sizeof(struct lpfc_queue) + | |
9337 | (sizeof(union sli4_qe) * entry_count), GFP_KERNEL); | |
9338 | if (!queue) | |
9339 | return NULL; | |
9340 | queue->page_count = (PAGE_ALIGN(entry_size * entry_count))/PAGE_SIZE; | |
9341 | INIT_LIST_HEAD(&queue->list); | |
9342 | INIT_LIST_HEAD(&queue->page_list); | |
9343 | INIT_LIST_HEAD(&queue->child_list); | |
9344 | for (x = 0, total_qe_count = 0; x < queue->page_count; x++) { | |
9345 | dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); | |
9346 | if (!dmabuf) | |
9347 | goto out_fail; | |
9348 | dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, | |
9349 | PAGE_SIZE, &dmabuf->phys, | |
9350 | GFP_KERNEL); | |
9351 | if (!dmabuf->virt) { | |
9352 | kfree(dmabuf); | |
9353 | goto out_fail; | |
9354 | } | |
9355 | dmabuf->buffer_tag = x; | |
9356 | list_add_tail(&dmabuf->list, &queue->page_list); | |
9357 | /* initialize queue's entry array */ | |
9358 | dma_pointer = dmabuf->virt; | |
9359 | for (; total_qe_count < entry_count && | |
9360 | dma_pointer < (PAGE_SIZE + dmabuf->virt); | |
9361 | total_qe_count++, dma_pointer += entry_size) { | |
9362 | queue->qe[total_qe_count].address = dma_pointer; | |
9363 | } | |
9364 | } | |
9365 | queue->entry_size = entry_size; | |
9366 | queue->entry_count = entry_count; | |
9367 | queue->phba = phba; | |
9368 | ||
9369 | return queue; | |
9370 | out_fail: | |
9371 | lpfc_sli4_queue_free(queue); | |
9372 | return NULL; | |
9373 | } | |
9374 | ||
9375 | /** | |
9376 | * lpfc_eq_create - Create an Event Queue on the HBA | |
9377 | * @phba: HBA structure that indicates port to create a queue on. | |
9378 | * @eq: The queue structure to use to create the event queue. | |
9379 | * @imax: The maximum interrupt per second limit. | |
9380 | * | |
9381 | * This function creates an event queue, as detailed in @eq, on a port, | |
9382 | * described by @phba by sending an EQ_CREATE mailbox command to the HBA. | |
9383 | * | |
9384 | * The @phba struct is used to send mailbox command to HBA. The @eq struct | |
9385 | * is used to get the entry count and entry size that are necessary to | |
9386 | * determine the number of pages to allocate and use for this queue. This | |
9387 | * function will send the EQ_CREATE mailbox command to the HBA to setup the | |
9388 | * event queue. This function is asynchronous and will wait for the mailbox | |
9389 | * command to finish before continuing. | |
9390 | * | |
9391 | * On success this function will return a zero. If unable to allocate enough | |
9392 | * memory this function will return ENOMEM. If the queue create mailbox command | |
9393 | * fails this function will return ENXIO. | |
9394 | **/ | |
9395 | uint32_t | |
9396 | lpfc_eq_create(struct lpfc_hba *phba, struct lpfc_queue *eq, uint16_t imax) | |
9397 | { | |
9398 | struct lpfc_mbx_eq_create *eq_create; | |
9399 | LPFC_MBOXQ_t *mbox; | |
9400 | int rc, length, status = 0; | |
9401 | struct lpfc_dmabuf *dmabuf; | |
9402 | uint32_t shdr_status, shdr_add_status; | |
9403 | union lpfc_sli4_cfg_shdr *shdr; | |
9404 | uint16_t dmult; | |
9405 | ||
9406 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
9407 | if (!mbox) | |
9408 | return -ENOMEM; | |
9409 | length = (sizeof(struct lpfc_mbx_eq_create) - | |
9410 | sizeof(struct lpfc_sli4_cfg_mhdr)); | |
9411 | lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON, | |
9412 | LPFC_MBOX_OPCODE_EQ_CREATE, | |
9413 | length, LPFC_SLI4_MBX_EMBED); | |
9414 | eq_create = &mbox->u.mqe.un.eq_create; | |
9415 | bf_set(lpfc_mbx_eq_create_num_pages, &eq_create->u.request, | |
9416 | eq->page_count); | |
9417 | bf_set(lpfc_eq_context_size, &eq_create->u.request.context, | |
9418 | LPFC_EQE_SIZE); | |
9419 | bf_set(lpfc_eq_context_valid, &eq_create->u.request.context, 1); | |
9420 | /* Calculate delay multiper from maximum interrupt per second */ | |
9421 | dmult = LPFC_DMULT_CONST/imax - 1; | |
9422 | bf_set(lpfc_eq_context_delay_multi, &eq_create->u.request.context, | |
9423 | dmult); | |
9424 | switch (eq->entry_count) { | |
9425 | default: | |
9426 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
9427 | "0360 Unsupported EQ count. (%d)\n", | |
9428 | eq->entry_count); | |
9429 | if (eq->entry_count < 256) | |
9430 | return -EINVAL; | |
9431 | /* otherwise default to smallest count (drop through) */ | |
9432 | case 256: | |
9433 | bf_set(lpfc_eq_context_count, &eq_create->u.request.context, | |
9434 | LPFC_EQ_CNT_256); | |
9435 | break; | |
9436 | case 512: | |
9437 | bf_set(lpfc_eq_context_count, &eq_create->u.request.context, | |
9438 | LPFC_EQ_CNT_512); | |
9439 | break; | |
9440 | case 1024: | |
9441 | bf_set(lpfc_eq_context_count, &eq_create->u.request.context, | |
9442 | LPFC_EQ_CNT_1024); | |
9443 | break; | |
9444 | case 2048: | |
9445 | bf_set(lpfc_eq_context_count, &eq_create->u.request.context, | |
9446 | LPFC_EQ_CNT_2048); | |
9447 | break; | |
9448 | case 4096: | |
9449 | bf_set(lpfc_eq_context_count, &eq_create->u.request.context, | |
9450 | LPFC_EQ_CNT_4096); | |
9451 | break; | |
9452 | } | |
9453 | list_for_each_entry(dmabuf, &eq->page_list, list) { | |
9454 | eq_create->u.request.page[dmabuf->buffer_tag].addr_lo = | |
9455 | putPaddrLow(dmabuf->phys); | |
9456 | eq_create->u.request.page[dmabuf->buffer_tag].addr_hi = | |
9457 | putPaddrHigh(dmabuf->phys); | |
9458 | } | |
9459 | mbox->vport = phba->pport; | |
9460 | mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
9461 | mbox->context1 = NULL; | |
9462 | rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL); | |
9463 | shdr = (union lpfc_sli4_cfg_shdr *) &eq_create->header.cfg_shdr; | |
9464 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); | |
9465 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); | |
9466 | if (shdr_status || shdr_add_status || rc) { | |
9467 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
9468 | "2500 EQ_CREATE mailbox failed with " | |
9469 | "status x%x add_status x%x, mbx status x%x\n", | |
9470 | shdr_status, shdr_add_status, rc); | |
9471 | status = -ENXIO; | |
9472 | } | |
9473 | eq->type = LPFC_EQ; | |
9474 | eq->subtype = LPFC_NONE; | |
9475 | eq->queue_id = bf_get(lpfc_mbx_eq_create_q_id, &eq_create->u.response); | |
9476 | if (eq->queue_id == 0xFFFF) | |
9477 | status = -ENXIO; | |
9478 | eq->host_index = 0; | |
9479 | eq->hba_index = 0; | |
9480 | ||
9481 | if (rc != MBX_TIMEOUT) | |
9482 | mempool_free(mbox, phba->mbox_mem_pool); | |
9483 | return status; | |
9484 | } | |
9485 | ||
9486 | /** | |
9487 | * lpfc_cq_create - Create a Completion Queue on the HBA | |
9488 | * @phba: HBA structure that indicates port to create a queue on. | |
9489 | * @cq: The queue structure to use to create the completion queue. | |
9490 | * @eq: The event queue to bind this completion queue to. | |
9491 | * | |
9492 | * This function creates a completion queue, as detailed in @wq, on a port, | |
9493 | * described by @phba by sending a CQ_CREATE mailbox command to the HBA. | |
9494 | * | |
9495 | * The @phba struct is used to send mailbox command to HBA. The @cq struct | |
9496 | * is used to get the entry count and entry size that are necessary to | |
9497 | * determine the number of pages to allocate and use for this queue. The @eq | |
9498 | * is used to indicate which event queue to bind this completion queue to. This | |
9499 | * function will send the CQ_CREATE mailbox command to the HBA to setup the | |
9500 | * completion queue. This function is asynchronous and will wait for the mailbox | |
9501 | * command to finish before continuing. | |
9502 | * | |
9503 | * On success this function will return a zero. If unable to allocate enough | |
9504 | * memory this function will return ENOMEM. If the queue create mailbox command | |
9505 | * fails this function will return ENXIO. | |
9506 | **/ | |
9507 | uint32_t | |
9508 | lpfc_cq_create(struct lpfc_hba *phba, struct lpfc_queue *cq, | |
9509 | struct lpfc_queue *eq, uint32_t type, uint32_t subtype) | |
9510 | { | |
9511 | struct lpfc_mbx_cq_create *cq_create; | |
9512 | struct lpfc_dmabuf *dmabuf; | |
9513 | LPFC_MBOXQ_t *mbox; | |
9514 | int rc, length, status = 0; | |
9515 | uint32_t shdr_status, shdr_add_status; | |
9516 | union lpfc_sli4_cfg_shdr *shdr; | |
9517 | ||
9518 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
9519 | if (!mbox) | |
9520 | return -ENOMEM; | |
9521 | length = (sizeof(struct lpfc_mbx_cq_create) - | |
9522 | sizeof(struct lpfc_sli4_cfg_mhdr)); | |
9523 | lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON, | |
9524 | LPFC_MBOX_OPCODE_CQ_CREATE, | |
9525 | length, LPFC_SLI4_MBX_EMBED); | |
9526 | cq_create = &mbox->u.mqe.un.cq_create; | |
9527 | bf_set(lpfc_mbx_cq_create_num_pages, &cq_create->u.request, | |
9528 | cq->page_count); | |
9529 | bf_set(lpfc_cq_context_event, &cq_create->u.request.context, 1); | |
9530 | bf_set(lpfc_cq_context_valid, &cq_create->u.request.context, 1); | |
9531 | bf_set(lpfc_cq_eq_id, &cq_create->u.request.context, eq->queue_id); | |
9532 | switch (cq->entry_count) { | |
9533 | default: | |
9534 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
9535 | "0361 Unsupported CQ count. (%d)\n", | |
9536 | cq->entry_count); | |
9537 | if (cq->entry_count < 256) | |
9538 | return -EINVAL; | |
9539 | /* otherwise default to smallest count (drop through) */ | |
9540 | case 256: | |
9541 | bf_set(lpfc_cq_context_count, &cq_create->u.request.context, | |
9542 | LPFC_CQ_CNT_256); | |
9543 | break; | |
9544 | case 512: | |
9545 | bf_set(lpfc_cq_context_count, &cq_create->u.request.context, | |
9546 | LPFC_CQ_CNT_512); | |
9547 | break; | |
9548 | case 1024: | |
9549 | bf_set(lpfc_cq_context_count, &cq_create->u.request.context, | |
9550 | LPFC_CQ_CNT_1024); | |
9551 | break; | |
9552 | } | |
9553 | list_for_each_entry(dmabuf, &cq->page_list, list) { | |
9554 | cq_create->u.request.page[dmabuf->buffer_tag].addr_lo = | |
9555 | putPaddrLow(dmabuf->phys); | |
9556 | cq_create->u.request.page[dmabuf->buffer_tag].addr_hi = | |
9557 | putPaddrHigh(dmabuf->phys); | |
9558 | } | |
9559 | rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL); | |
9560 | ||
9561 | /* The IOCTL status is embedded in the mailbox subheader. */ | |
9562 | shdr = (union lpfc_sli4_cfg_shdr *) &cq_create->header.cfg_shdr; | |
9563 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); | |
9564 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); | |
9565 | if (shdr_status || shdr_add_status || rc) { | |
9566 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
9567 | "2501 CQ_CREATE mailbox failed with " | |
9568 | "status x%x add_status x%x, mbx status x%x\n", | |
9569 | shdr_status, shdr_add_status, rc); | |
9570 | status = -ENXIO; | |
9571 | goto out; | |
9572 | } | |
9573 | cq->queue_id = bf_get(lpfc_mbx_cq_create_q_id, &cq_create->u.response); | |
9574 | if (cq->queue_id == 0xFFFF) { | |
9575 | status = -ENXIO; | |
9576 | goto out; | |
9577 | } | |
9578 | /* link the cq onto the parent eq child list */ | |
9579 | list_add_tail(&cq->list, &eq->child_list); | |
9580 | /* Set up completion queue's type and subtype */ | |
9581 | cq->type = type; | |
9582 | cq->subtype = subtype; | |
9583 | cq->queue_id = bf_get(lpfc_mbx_cq_create_q_id, &cq_create->u.response); | |
9584 | cq->host_index = 0; | |
9585 | cq->hba_index = 0; | |
9586 | out: | |
9587 | ||
9588 | if (rc != MBX_TIMEOUT) | |
9589 | mempool_free(mbox, phba->mbox_mem_pool); | |
9590 | return status; | |
9591 | } | |
9592 | ||
04c68496 JS |
9593 | /** |
9594 | * lpfc_mq_create - Create a mailbox Queue on the HBA | |
9595 | * @phba: HBA structure that indicates port to create a queue on. | |
9596 | * @mq: The queue structure to use to create the mailbox queue. | |
9597 | * | |
9598 | * This function creates a mailbox queue, as detailed in @mq, on a port, | |
9599 | * described by @phba by sending a MQ_CREATE mailbox command to the HBA. | |
9600 | * | |
9601 | * The @phba struct is used to send mailbox command to HBA. The @cq struct | |
9602 | * is used to get the entry count and entry size that are necessary to | |
9603 | * determine the number of pages to allocate and use for this queue. This | |
9604 | * function will send the MQ_CREATE mailbox command to the HBA to setup the | |
9605 | * mailbox queue. This function is asynchronous and will wait for the mailbox | |
9606 | * command to finish before continuing. | |
9607 | * | |
9608 | * On success this function will return a zero. If unable to allocate enough | |
9609 | * memory this function will return ENOMEM. If the queue create mailbox command | |
9610 | * fails this function will return ENXIO. | |
9611 | **/ | |
9612 | uint32_t | |
9613 | lpfc_mq_create(struct lpfc_hba *phba, struct lpfc_queue *mq, | |
9614 | struct lpfc_queue *cq, uint32_t subtype) | |
9615 | { | |
9616 | struct lpfc_mbx_mq_create *mq_create; | |
9617 | struct lpfc_dmabuf *dmabuf; | |
9618 | LPFC_MBOXQ_t *mbox; | |
9619 | int rc, length, status = 0; | |
9620 | uint32_t shdr_status, shdr_add_status; | |
9621 | union lpfc_sli4_cfg_shdr *shdr; | |
9622 | ||
9623 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
9624 | if (!mbox) | |
9625 | return -ENOMEM; | |
9626 | length = (sizeof(struct lpfc_mbx_mq_create) - | |
9627 | sizeof(struct lpfc_sli4_cfg_mhdr)); | |
9628 | lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON, | |
9629 | LPFC_MBOX_OPCODE_MQ_CREATE, | |
9630 | length, LPFC_SLI4_MBX_EMBED); | |
9631 | mq_create = &mbox->u.mqe.un.mq_create; | |
9632 | bf_set(lpfc_mbx_mq_create_num_pages, &mq_create->u.request, | |
9633 | mq->page_count); | |
9634 | bf_set(lpfc_mq_context_cq_id, &mq_create->u.request.context, | |
9635 | cq->queue_id); | |
9636 | bf_set(lpfc_mq_context_valid, &mq_create->u.request.context, 1); | |
9637 | switch (mq->entry_count) { | |
9638 | default: | |
9639 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
9640 | "0362 Unsupported MQ count. (%d)\n", | |
9641 | mq->entry_count); | |
9642 | if (mq->entry_count < 16) | |
9643 | return -EINVAL; | |
9644 | /* otherwise default to smallest count (drop through) */ | |
9645 | case 16: | |
9646 | bf_set(lpfc_mq_context_count, &mq_create->u.request.context, | |
9647 | LPFC_MQ_CNT_16); | |
9648 | break; | |
9649 | case 32: | |
9650 | bf_set(lpfc_mq_context_count, &mq_create->u.request.context, | |
9651 | LPFC_MQ_CNT_32); | |
9652 | break; | |
9653 | case 64: | |
9654 | bf_set(lpfc_mq_context_count, &mq_create->u.request.context, | |
9655 | LPFC_MQ_CNT_64); | |
9656 | break; | |
9657 | case 128: | |
9658 | bf_set(lpfc_mq_context_count, &mq_create->u.request.context, | |
9659 | LPFC_MQ_CNT_128); | |
9660 | break; | |
9661 | } | |
9662 | list_for_each_entry(dmabuf, &mq->page_list, list) { | |
9663 | mq_create->u.request.page[dmabuf->buffer_tag].addr_lo = | |
9664 | putPaddrLow(dmabuf->phys); | |
9665 | mq_create->u.request.page[dmabuf->buffer_tag].addr_hi = | |
9666 | putPaddrHigh(dmabuf->phys); | |
9667 | } | |
9668 | rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL); | |
9669 | /* The IOCTL status is embedded in the mailbox subheader. */ | |
9670 | shdr = (union lpfc_sli4_cfg_shdr *) &mq_create->header.cfg_shdr; | |
9671 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); | |
9672 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); | |
9673 | if (shdr_status || shdr_add_status || rc) { | |
9674 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
9675 | "2502 MQ_CREATE mailbox failed with " | |
9676 | "status x%x add_status x%x, mbx status x%x\n", | |
9677 | shdr_status, shdr_add_status, rc); | |
9678 | status = -ENXIO; | |
9679 | goto out; | |
9680 | } | |
9681 | mq->queue_id = bf_get(lpfc_mbx_mq_create_q_id, &mq_create->u.response); | |
9682 | if (mq->queue_id == 0xFFFF) { | |
9683 | status = -ENXIO; | |
9684 | goto out; | |
9685 | } | |
9686 | mq->type = LPFC_MQ; | |
9687 | mq->subtype = subtype; | |
9688 | mq->host_index = 0; | |
9689 | mq->hba_index = 0; | |
9690 | ||
9691 | /* link the mq onto the parent cq child list */ | |
9692 | list_add_tail(&mq->list, &cq->child_list); | |
9693 | out: | |
9694 | if (rc != MBX_TIMEOUT) | |
9695 | mempool_free(mbox, phba->mbox_mem_pool); | |
9696 | return status; | |
9697 | } | |
9698 | ||
4f774513 JS |
9699 | /** |
9700 | * lpfc_wq_create - Create a Work Queue on the HBA | |
9701 | * @phba: HBA structure that indicates port to create a queue on. | |
9702 | * @wq: The queue structure to use to create the work queue. | |
9703 | * @cq: The completion queue to bind this work queue to. | |
9704 | * @subtype: The subtype of the work queue indicating its functionality. | |
9705 | * | |
9706 | * This function creates a work queue, as detailed in @wq, on a port, described | |
9707 | * by @phba by sending a WQ_CREATE mailbox command to the HBA. | |
9708 | * | |
9709 | * The @phba struct is used to send mailbox command to HBA. The @wq struct | |
9710 | * is used to get the entry count and entry size that are necessary to | |
9711 | * determine the number of pages to allocate and use for this queue. The @cq | |
9712 | * is used to indicate which completion queue to bind this work queue to. This | |
9713 | * function will send the WQ_CREATE mailbox command to the HBA to setup the | |
9714 | * work queue. This function is asynchronous and will wait for the mailbox | |
9715 | * command to finish before continuing. | |
9716 | * | |
9717 | * On success this function will return a zero. If unable to allocate enough | |
9718 | * memory this function will return ENOMEM. If the queue create mailbox command | |
9719 | * fails this function will return ENXIO. | |
9720 | **/ | |
9721 | uint32_t | |
9722 | lpfc_wq_create(struct lpfc_hba *phba, struct lpfc_queue *wq, | |
9723 | struct lpfc_queue *cq, uint32_t subtype) | |
9724 | { | |
9725 | struct lpfc_mbx_wq_create *wq_create; | |
9726 | struct lpfc_dmabuf *dmabuf; | |
9727 | LPFC_MBOXQ_t *mbox; | |
9728 | int rc, length, status = 0; | |
9729 | uint32_t shdr_status, shdr_add_status; | |
9730 | union lpfc_sli4_cfg_shdr *shdr; | |
9731 | ||
9732 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
9733 | if (!mbox) | |
9734 | return -ENOMEM; | |
9735 | length = (sizeof(struct lpfc_mbx_wq_create) - | |
9736 | sizeof(struct lpfc_sli4_cfg_mhdr)); | |
9737 | lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE, | |
9738 | LPFC_MBOX_OPCODE_FCOE_WQ_CREATE, | |
9739 | length, LPFC_SLI4_MBX_EMBED); | |
9740 | wq_create = &mbox->u.mqe.un.wq_create; | |
9741 | bf_set(lpfc_mbx_wq_create_num_pages, &wq_create->u.request, | |
9742 | wq->page_count); | |
9743 | bf_set(lpfc_mbx_wq_create_cq_id, &wq_create->u.request, | |
9744 | cq->queue_id); | |
9745 | list_for_each_entry(dmabuf, &wq->page_list, list) { | |
9746 | wq_create->u.request.page[dmabuf->buffer_tag].addr_lo = | |
9747 | putPaddrLow(dmabuf->phys); | |
9748 | wq_create->u.request.page[dmabuf->buffer_tag].addr_hi = | |
9749 | putPaddrHigh(dmabuf->phys); | |
9750 | } | |
9751 | rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL); | |
9752 | /* The IOCTL status is embedded in the mailbox subheader. */ | |
9753 | shdr = (union lpfc_sli4_cfg_shdr *) &wq_create->header.cfg_shdr; | |
9754 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); | |
9755 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); | |
9756 | if (shdr_status || shdr_add_status || rc) { | |
9757 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
9758 | "2503 WQ_CREATE mailbox failed with " | |
9759 | "status x%x add_status x%x, mbx status x%x\n", | |
9760 | shdr_status, shdr_add_status, rc); | |
9761 | status = -ENXIO; | |
9762 | goto out; | |
9763 | } | |
9764 | wq->queue_id = bf_get(lpfc_mbx_wq_create_q_id, &wq_create->u.response); | |
9765 | if (wq->queue_id == 0xFFFF) { | |
9766 | status = -ENXIO; | |
9767 | goto out; | |
9768 | } | |
9769 | wq->type = LPFC_WQ; | |
9770 | wq->subtype = subtype; | |
9771 | wq->host_index = 0; | |
9772 | wq->hba_index = 0; | |
9773 | ||
9774 | /* link the wq onto the parent cq child list */ | |
9775 | list_add_tail(&wq->list, &cq->child_list); | |
9776 | out: | |
9777 | if (rc == MBX_TIMEOUT) | |
9778 | mempool_free(mbox, phba->mbox_mem_pool); | |
9779 | return status; | |
9780 | } | |
9781 | ||
9782 | /** | |
9783 | * lpfc_rq_create - Create a Receive Queue on the HBA | |
9784 | * @phba: HBA structure that indicates port to create a queue on. | |
9785 | * @hrq: The queue structure to use to create the header receive queue. | |
9786 | * @drq: The queue structure to use to create the data receive queue. | |
9787 | * @cq: The completion queue to bind this work queue to. | |
9788 | * | |
9789 | * This function creates a receive buffer queue pair , as detailed in @hrq and | |
9790 | * @drq, on a port, described by @phba by sending a RQ_CREATE mailbox command | |
9791 | * to the HBA. | |
9792 | * | |
9793 | * The @phba struct is used to send mailbox command to HBA. The @drq and @hrq | |
9794 | * struct is used to get the entry count that is necessary to determine the | |
9795 | * number of pages to use for this queue. The @cq is used to indicate which | |
9796 | * completion queue to bind received buffers that are posted to these queues to. | |
9797 | * This function will send the RQ_CREATE mailbox command to the HBA to setup the | |
9798 | * receive queue pair. This function is asynchronous and will wait for the | |
9799 | * mailbox command to finish before continuing. | |
9800 | * | |
9801 | * On success this function will return a zero. If unable to allocate enough | |
9802 | * memory this function will return ENOMEM. If the queue create mailbox command | |
9803 | * fails this function will return ENXIO. | |
9804 | **/ | |
9805 | uint32_t | |
9806 | lpfc_rq_create(struct lpfc_hba *phba, struct lpfc_queue *hrq, | |
9807 | struct lpfc_queue *drq, struct lpfc_queue *cq, uint32_t subtype) | |
9808 | { | |
9809 | struct lpfc_mbx_rq_create *rq_create; | |
9810 | struct lpfc_dmabuf *dmabuf; | |
9811 | LPFC_MBOXQ_t *mbox; | |
9812 | int rc, length, status = 0; | |
9813 | uint32_t shdr_status, shdr_add_status; | |
9814 | union lpfc_sli4_cfg_shdr *shdr; | |
9815 | ||
9816 | if (hrq->entry_count != drq->entry_count) | |
9817 | return -EINVAL; | |
9818 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
9819 | if (!mbox) | |
9820 | return -ENOMEM; | |
9821 | length = (sizeof(struct lpfc_mbx_rq_create) - | |
9822 | sizeof(struct lpfc_sli4_cfg_mhdr)); | |
9823 | lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE, | |
9824 | LPFC_MBOX_OPCODE_FCOE_RQ_CREATE, | |
9825 | length, LPFC_SLI4_MBX_EMBED); | |
9826 | rq_create = &mbox->u.mqe.un.rq_create; | |
9827 | switch (hrq->entry_count) { | |
9828 | default: | |
9829 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
9830 | "2535 Unsupported RQ count. (%d)\n", | |
9831 | hrq->entry_count); | |
9832 | if (hrq->entry_count < 512) | |
9833 | return -EINVAL; | |
9834 | /* otherwise default to smallest count (drop through) */ | |
9835 | case 512: | |
9836 | bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context, | |
9837 | LPFC_RQ_RING_SIZE_512); | |
9838 | break; | |
9839 | case 1024: | |
9840 | bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context, | |
9841 | LPFC_RQ_RING_SIZE_1024); | |
9842 | break; | |
9843 | case 2048: | |
9844 | bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context, | |
9845 | LPFC_RQ_RING_SIZE_2048); | |
9846 | break; | |
9847 | case 4096: | |
9848 | bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context, | |
9849 | LPFC_RQ_RING_SIZE_4096); | |
9850 | break; | |
9851 | } | |
9852 | bf_set(lpfc_rq_context_cq_id, &rq_create->u.request.context, | |
9853 | cq->queue_id); | |
9854 | bf_set(lpfc_mbx_rq_create_num_pages, &rq_create->u.request, | |
9855 | hrq->page_count); | |
9856 | bf_set(lpfc_rq_context_buf_size, &rq_create->u.request.context, | |
9857 | LPFC_HDR_BUF_SIZE); | |
9858 | list_for_each_entry(dmabuf, &hrq->page_list, list) { | |
9859 | rq_create->u.request.page[dmabuf->buffer_tag].addr_lo = | |
9860 | putPaddrLow(dmabuf->phys); | |
9861 | rq_create->u.request.page[dmabuf->buffer_tag].addr_hi = | |
9862 | putPaddrHigh(dmabuf->phys); | |
9863 | } | |
9864 | rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL); | |
9865 | /* The IOCTL status is embedded in the mailbox subheader. */ | |
9866 | shdr = (union lpfc_sli4_cfg_shdr *) &rq_create->header.cfg_shdr; | |
9867 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); | |
9868 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); | |
9869 | if (shdr_status || shdr_add_status || rc) { | |
9870 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
9871 | "2504 RQ_CREATE mailbox failed with " | |
9872 | "status x%x add_status x%x, mbx status x%x\n", | |
9873 | shdr_status, shdr_add_status, rc); | |
9874 | status = -ENXIO; | |
9875 | goto out; | |
9876 | } | |
9877 | hrq->queue_id = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response); | |
9878 | if (hrq->queue_id == 0xFFFF) { | |
9879 | status = -ENXIO; | |
9880 | goto out; | |
9881 | } | |
9882 | hrq->type = LPFC_HRQ; | |
9883 | hrq->subtype = subtype; | |
9884 | hrq->host_index = 0; | |
9885 | hrq->hba_index = 0; | |
9886 | ||
9887 | /* now create the data queue */ | |
9888 | lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE, | |
9889 | LPFC_MBOX_OPCODE_FCOE_RQ_CREATE, | |
9890 | length, LPFC_SLI4_MBX_EMBED); | |
9891 | switch (drq->entry_count) { | |
9892 | default: | |
9893 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
9894 | "2536 Unsupported RQ count. (%d)\n", | |
9895 | drq->entry_count); | |
9896 | if (drq->entry_count < 512) | |
9897 | return -EINVAL; | |
9898 | /* otherwise default to smallest count (drop through) */ | |
9899 | case 512: | |
9900 | bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context, | |
9901 | LPFC_RQ_RING_SIZE_512); | |
9902 | break; | |
9903 | case 1024: | |
9904 | bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context, | |
9905 | LPFC_RQ_RING_SIZE_1024); | |
9906 | break; | |
9907 | case 2048: | |
9908 | bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context, | |
9909 | LPFC_RQ_RING_SIZE_2048); | |
9910 | break; | |
9911 | case 4096: | |
9912 | bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context, | |
9913 | LPFC_RQ_RING_SIZE_4096); | |
9914 | break; | |
9915 | } | |
9916 | bf_set(lpfc_rq_context_cq_id, &rq_create->u.request.context, | |
9917 | cq->queue_id); | |
9918 | bf_set(lpfc_mbx_rq_create_num_pages, &rq_create->u.request, | |
9919 | drq->page_count); | |
9920 | bf_set(lpfc_rq_context_buf_size, &rq_create->u.request.context, | |
9921 | LPFC_DATA_BUF_SIZE); | |
9922 | list_for_each_entry(dmabuf, &drq->page_list, list) { | |
9923 | rq_create->u.request.page[dmabuf->buffer_tag].addr_lo = | |
9924 | putPaddrLow(dmabuf->phys); | |
9925 | rq_create->u.request.page[dmabuf->buffer_tag].addr_hi = | |
9926 | putPaddrHigh(dmabuf->phys); | |
9927 | } | |
9928 | rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL); | |
9929 | /* The IOCTL status is embedded in the mailbox subheader. */ | |
9930 | shdr = (union lpfc_sli4_cfg_shdr *) &rq_create->header.cfg_shdr; | |
9931 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); | |
9932 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); | |
9933 | if (shdr_status || shdr_add_status || rc) { | |
9934 | status = -ENXIO; | |
9935 | goto out; | |
9936 | } | |
9937 | drq->queue_id = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response); | |
9938 | if (drq->queue_id == 0xFFFF) { | |
9939 | status = -ENXIO; | |
9940 | goto out; | |
9941 | } | |
9942 | drq->type = LPFC_DRQ; | |
9943 | drq->subtype = subtype; | |
9944 | drq->host_index = 0; | |
9945 | drq->hba_index = 0; | |
9946 | ||
9947 | /* link the header and data RQs onto the parent cq child list */ | |
9948 | list_add_tail(&hrq->list, &cq->child_list); | |
9949 | list_add_tail(&drq->list, &cq->child_list); | |
9950 | ||
9951 | out: | |
9952 | if (rc != MBX_TIMEOUT) | |
9953 | mempool_free(mbox, phba->mbox_mem_pool); | |
9954 | return status; | |
9955 | } | |
9956 | ||
9957 | /** | |
9958 | * lpfc_eq_destroy - Destroy an event Queue on the HBA | |
9959 | * @eq: The queue structure associated with the queue to destroy. | |
9960 | * | |
9961 | * This function destroys a queue, as detailed in @eq by sending an mailbox | |
9962 | * command, specific to the type of queue, to the HBA. | |
9963 | * | |
9964 | * The @eq struct is used to get the queue ID of the queue to destroy. | |
9965 | * | |
9966 | * On success this function will return a zero. If the queue destroy mailbox | |
9967 | * command fails this function will return ENXIO. | |
9968 | **/ | |
9969 | uint32_t | |
9970 | lpfc_eq_destroy(struct lpfc_hba *phba, struct lpfc_queue *eq) | |
9971 | { | |
9972 | LPFC_MBOXQ_t *mbox; | |
9973 | int rc, length, status = 0; | |
9974 | uint32_t shdr_status, shdr_add_status; | |
9975 | union lpfc_sli4_cfg_shdr *shdr; | |
9976 | ||
9977 | if (!eq) | |
9978 | return -ENODEV; | |
9979 | mbox = mempool_alloc(eq->phba->mbox_mem_pool, GFP_KERNEL); | |
9980 | if (!mbox) | |
9981 | return -ENOMEM; | |
9982 | length = (sizeof(struct lpfc_mbx_eq_destroy) - | |
9983 | sizeof(struct lpfc_sli4_cfg_mhdr)); | |
9984 | lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON, | |
9985 | LPFC_MBOX_OPCODE_EQ_DESTROY, | |
9986 | length, LPFC_SLI4_MBX_EMBED); | |
9987 | bf_set(lpfc_mbx_eq_destroy_q_id, &mbox->u.mqe.un.eq_destroy.u.request, | |
9988 | eq->queue_id); | |
9989 | mbox->vport = eq->phba->pport; | |
9990 | mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
9991 | ||
9992 | rc = lpfc_sli_issue_mbox(eq->phba, mbox, MBX_POLL); | |
9993 | /* The IOCTL status is embedded in the mailbox subheader. */ | |
9994 | shdr = (union lpfc_sli4_cfg_shdr *) | |
9995 | &mbox->u.mqe.un.eq_destroy.header.cfg_shdr; | |
9996 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); | |
9997 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); | |
9998 | if (shdr_status || shdr_add_status || rc) { | |
9999 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
10000 | "2505 EQ_DESTROY mailbox failed with " | |
10001 | "status x%x add_status x%x, mbx status x%x\n", | |
10002 | shdr_status, shdr_add_status, rc); | |
10003 | status = -ENXIO; | |
10004 | } | |
10005 | ||
10006 | /* Remove eq from any list */ | |
10007 | list_del_init(&eq->list); | |
10008 | if (rc != MBX_TIMEOUT) | |
10009 | mempool_free(mbox, eq->phba->mbox_mem_pool); | |
10010 | return status; | |
10011 | } | |
10012 | ||
10013 | /** | |
10014 | * lpfc_cq_destroy - Destroy a Completion Queue on the HBA | |
10015 | * @cq: The queue structure associated with the queue to destroy. | |
10016 | * | |
10017 | * This function destroys a queue, as detailed in @cq by sending an mailbox | |
10018 | * command, specific to the type of queue, to the HBA. | |
10019 | * | |
10020 | * The @cq struct is used to get the queue ID of the queue to destroy. | |
10021 | * | |
10022 | * On success this function will return a zero. If the queue destroy mailbox | |
10023 | * command fails this function will return ENXIO. | |
10024 | **/ | |
10025 | uint32_t | |
10026 | lpfc_cq_destroy(struct lpfc_hba *phba, struct lpfc_queue *cq) | |
10027 | { | |
10028 | LPFC_MBOXQ_t *mbox; | |
10029 | int rc, length, status = 0; | |
10030 | uint32_t shdr_status, shdr_add_status; | |
10031 | union lpfc_sli4_cfg_shdr *shdr; | |
10032 | ||
10033 | if (!cq) | |
10034 | return -ENODEV; | |
10035 | mbox = mempool_alloc(cq->phba->mbox_mem_pool, GFP_KERNEL); | |
10036 | if (!mbox) | |
10037 | return -ENOMEM; | |
10038 | length = (sizeof(struct lpfc_mbx_cq_destroy) - | |
10039 | sizeof(struct lpfc_sli4_cfg_mhdr)); | |
10040 | lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON, | |
10041 | LPFC_MBOX_OPCODE_CQ_DESTROY, | |
10042 | length, LPFC_SLI4_MBX_EMBED); | |
10043 | bf_set(lpfc_mbx_cq_destroy_q_id, &mbox->u.mqe.un.cq_destroy.u.request, | |
10044 | cq->queue_id); | |
10045 | mbox->vport = cq->phba->pport; | |
10046 | mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
10047 | rc = lpfc_sli_issue_mbox(cq->phba, mbox, MBX_POLL); | |
10048 | /* The IOCTL status is embedded in the mailbox subheader. */ | |
10049 | shdr = (union lpfc_sli4_cfg_shdr *) | |
10050 | &mbox->u.mqe.un.wq_create.header.cfg_shdr; | |
10051 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); | |
10052 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); | |
10053 | if (shdr_status || shdr_add_status || rc) { | |
10054 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
10055 | "2506 CQ_DESTROY mailbox failed with " | |
10056 | "status x%x add_status x%x, mbx status x%x\n", | |
10057 | shdr_status, shdr_add_status, rc); | |
10058 | status = -ENXIO; | |
10059 | } | |
10060 | /* Remove cq from any list */ | |
10061 | list_del_init(&cq->list); | |
10062 | if (rc != MBX_TIMEOUT) | |
10063 | mempool_free(mbox, cq->phba->mbox_mem_pool); | |
10064 | return status; | |
10065 | } | |
10066 | ||
04c68496 JS |
10067 | /** |
10068 | * lpfc_mq_destroy - Destroy a Mailbox Queue on the HBA | |
10069 | * @qm: The queue structure associated with the queue to destroy. | |
10070 | * | |
10071 | * This function destroys a queue, as detailed in @mq by sending an mailbox | |
10072 | * command, specific to the type of queue, to the HBA. | |
10073 | * | |
10074 | * The @mq struct is used to get the queue ID of the queue to destroy. | |
10075 | * | |
10076 | * On success this function will return a zero. If the queue destroy mailbox | |
10077 | * command fails this function will return ENXIO. | |
10078 | **/ | |
10079 | uint32_t | |
10080 | lpfc_mq_destroy(struct lpfc_hba *phba, struct lpfc_queue *mq) | |
10081 | { | |
10082 | LPFC_MBOXQ_t *mbox; | |
10083 | int rc, length, status = 0; | |
10084 | uint32_t shdr_status, shdr_add_status; | |
10085 | union lpfc_sli4_cfg_shdr *shdr; | |
10086 | ||
10087 | if (!mq) | |
10088 | return -ENODEV; | |
10089 | mbox = mempool_alloc(mq->phba->mbox_mem_pool, GFP_KERNEL); | |
10090 | if (!mbox) | |
10091 | return -ENOMEM; | |
10092 | length = (sizeof(struct lpfc_mbx_mq_destroy) - | |
10093 | sizeof(struct lpfc_sli4_cfg_mhdr)); | |
10094 | lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON, | |
10095 | LPFC_MBOX_OPCODE_MQ_DESTROY, | |
10096 | length, LPFC_SLI4_MBX_EMBED); | |
10097 | bf_set(lpfc_mbx_mq_destroy_q_id, &mbox->u.mqe.un.mq_destroy.u.request, | |
10098 | mq->queue_id); | |
10099 | mbox->vport = mq->phba->pport; | |
10100 | mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
10101 | rc = lpfc_sli_issue_mbox(mq->phba, mbox, MBX_POLL); | |
10102 | /* The IOCTL status is embedded in the mailbox subheader. */ | |
10103 | shdr = (union lpfc_sli4_cfg_shdr *) | |
10104 | &mbox->u.mqe.un.mq_destroy.header.cfg_shdr; | |
10105 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); | |
10106 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); | |
10107 | if (shdr_status || shdr_add_status || rc) { | |
10108 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
10109 | "2507 MQ_DESTROY mailbox failed with " | |
10110 | "status x%x add_status x%x, mbx status x%x\n", | |
10111 | shdr_status, shdr_add_status, rc); | |
10112 | status = -ENXIO; | |
10113 | } | |
10114 | /* Remove mq from any list */ | |
10115 | list_del_init(&mq->list); | |
10116 | if (rc != MBX_TIMEOUT) | |
10117 | mempool_free(mbox, mq->phba->mbox_mem_pool); | |
10118 | return status; | |
10119 | } | |
10120 | ||
4f774513 JS |
10121 | /** |
10122 | * lpfc_wq_destroy - Destroy a Work Queue on the HBA | |
10123 | * @wq: The queue structure associated with the queue to destroy. | |
10124 | * | |
10125 | * This function destroys a queue, as detailed in @wq by sending an mailbox | |
10126 | * command, specific to the type of queue, to the HBA. | |
10127 | * | |
10128 | * The @wq struct is used to get the queue ID of the queue to destroy. | |
10129 | * | |
10130 | * On success this function will return a zero. If the queue destroy mailbox | |
10131 | * command fails this function will return ENXIO. | |
10132 | **/ | |
10133 | uint32_t | |
10134 | lpfc_wq_destroy(struct lpfc_hba *phba, struct lpfc_queue *wq) | |
10135 | { | |
10136 | LPFC_MBOXQ_t *mbox; | |
10137 | int rc, length, status = 0; | |
10138 | uint32_t shdr_status, shdr_add_status; | |
10139 | union lpfc_sli4_cfg_shdr *shdr; | |
10140 | ||
10141 | if (!wq) | |
10142 | return -ENODEV; | |
10143 | mbox = mempool_alloc(wq->phba->mbox_mem_pool, GFP_KERNEL); | |
10144 | if (!mbox) | |
10145 | return -ENOMEM; | |
10146 | length = (sizeof(struct lpfc_mbx_wq_destroy) - | |
10147 | sizeof(struct lpfc_sli4_cfg_mhdr)); | |
10148 | lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE, | |
10149 | LPFC_MBOX_OPCODE_FCOE_WQ_DESTROY, | |
10150 | length, LPFC_SLI4_MBX_EMBED); | |
10151 | bf_set(lpfc_mbx_wq_destroy_q_id, &mbox->u.mqe.un.wq_destroy.u.request, | |
10152 | wq->queue_id); | |
10153 | mbox->vport = wq->phba->pport; | |
10154 | mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
10155 | rc = lpfc_sli_issue_mbox(wq->phba, mbox, MBX_POLL); | |
10156 | shdr = (union lpfc_sli4_cfg_shdr *) | |
10157 | &mbox->u.mqe.un.wq_destroy.header.cfg_shdr; | |
10158 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); | |
10159 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); | |
10160 | if (shdr_status || shdr_add_status || rc) { | |
10161 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
10162 | "2508 WQ_DESTROY mailbox failed with " | |
10163 | "status x%x add_status x%x, mbx status x%x\n", | |
10164 | shdr_status, shdr_add_status, rc); | |
10165 | status = -ENXIO; | |
10166 | } | |
10167 | /* Remove wq from any list */ | |
10168 | list_del_init(&wq->list); | |
10169 | if (rc != MBX_TIMEOUT) | |
10170 | mempool_free(mbox, wq->phba->mbox_mem_pool); | |
10171 | return status; | |
10172 | } | |
10173 | ||
10174 | /** | |
10175 | * lpfc_rq_destroy - Destroy a Receive Queue on the HBA | |
10176 | * @rq: The queue structure associated with the queue to destroy. | |
10177 | * | |
10178 | * This function destroys a queue, as detailed in @rq by sending an mailbox | |
10179 | * command, specific to the type of queue, to the HBA. | |
10180 | * | |
10181 | * The @rq struct is used to get the queue ID of the queue to destroy. | |
10182 | * | |
10183 | * On success this function will return a zero. If the queue destroy mailbox | |
10184 | * command fails this function will return ENXIO. | |
10185 | **/ | |
10186 | uint32_t | |
10187 | lpfc_rq_destroy(struct lpfc_hba *phba, struct lpfc_queue *hrq, | |
10188 | struct lpfc_queue *drq) | |
10189 | { | |
10190 | LPFC_MBOXQ_t *mbox; | |
10191 | int rc, length, status = 0; | |
10192 | uint32_t shdr_status, shdr_add_status; | |
10193 | union lpfc_sli4_cfg_shdr *shdr; | |
10194 | ||
10195 | if (!hrq || !drq) | |
10196 | return -ENODEV; | |
10197 | mbox = mempool_alloc(hrq->phba->mbox_mem_pool, GFP_KERNEL); | |
10198 | if (!mbox) | |
10199 | return -ENOMEM; | |
10200 | length = (sizeof(struct lpfc_mbx_rq_destroy) - | |
10201 | sizeof(struct mbox_header)); | |
10202 | lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE, | |
10203 | LPFC_MBOX_OPCODE_FCOE_RQ_DESTROY, | |
10204 | length, LPFC_SLI4_MBX_EMBED); | |
10205 | bf_set(lpfc_mbx_rq_destroy_q_id, &mbox->u.mqe.un.rq_destroy.u.request, | |
10206 | hrq->queue_id); | |
10207 | mbox->vport = hrq->phba->pport; | |
10208 | mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl; | |
10209 | rc = lpfc_sli_issue_mbox(hrq->phba, mbox, MBX_POLL); | |
10210 | /* The IOCTL status is embedded in the mailbox subheader. */ | |
10211 | shdr = (union lpfc_sli4_cfg_shdr *) | |
10212 | &mbox->u.mqe.un.rq_destroy.header.cfg_shdr; | |
10213 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); | |
10214 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); | |
10215 | if (shdr_status || shdr_add_status || rc) { | |
10216 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
10217 | "2509 RQ_DESTROY mailbox failed with " | |
10218 | "status x%x add_status x%x, mbx status x%x\n", | |
10219 | shdr_status, shdr_add_status, rc); | |
10220 | if (rc != MBX_TIMEOUT) | |
10221 | mempool_free(mbox, hrq->phba->mbox_mem_pool); | |
10222 | return -ENXIO; | |
10223 | } | |
10224 | bf_set(lpfc_mbx_rq_destroy_q_id, &mbox->u.mqe.un.rq_destroy.u.request, | |
10225 | drq->queue_id); | |
10226 | rc = lpfc_sli_issue_mbox(drq->phba, mbox, MBX_POLL); | |
10227 | shdr = (union lpfc_sli4_cfg_shdr *) | |
10228 | &mbox->u.mqe.un.rq_destroy.header.cfg_shdr; | |
10229 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); | |
10230 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); | |
10231 | if (shdr_status || shdr_add_status || rc) { | |
10232 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
10233 | "2510 RQ_DESTROY mailbox failed with " | |
10234 | "status x%x add_status x%x, mbx status x%x\n", | |
10235 | shdr_status, shdr_add_status, rc); | |
10236 | status = -ENXIO; | |
10237 | } | |
10238 | list_del_init(&hrq->list); | |
10239 | list_del_init(&drq->list); | |
10240 | if (rc != MBX_TIMEOUT) | |
10241 | mempool_free(mbox, hrq->phba->mbox_mem_pool); | |
10242 | return status; | |
10243 | } | |
10244 | ||
10245 | /** | |
10246 | * lpfc_sli4_post_sgl - Post scatter gather list for an XRI to HBA | |
10247 | * @phba: The virtual port for which this call being executed. | |
10248 | * @pdma_phys_addr0: Physical address of the 1st SGL page. | |
10249 | * @pdma_phys_addr1: Physical address of the 2nd SGL page. | |
10250 | * @xritag: the xritag that ties this io to the SGL pages. | |
10251 | * | |
10252 | * This routine will post the sgl pages for the IO that has the xritag | |
10253 | * that is in the iocbq structure. The xritag is assigned during iocbq | |
10254 | * creation and persists for as long as the driver is loaded. | |
10255 | * if the caller has fewer than 256 scatter gather segments to map then | |
10256 | * pdma_phys_addr1 should be 0. | |
10257 | * If the caller needs to map more than 256 scatter gather segment then | |
10258 | * pdma_phys_addr1 should be a valid physical address. | |
10259 | * physical address for SGLs must be 64 byte aligned. | |
10260 | * If you are going to map 2 SGL's then the first one must have 256 entries | |
10261 | * the second sgl can have between 1 and 256 entries. | |
10262 | * | |
10263 | * Return codes: | |
10264 | * 0 - Success | |
10265 | * -ENXIO, -ENOMEM - Failure | |
10266 | **/ | |
10267 | int | |
10268 | lpfc_sli4_post_sgl(struct lpfc_hba *phba, | |
10269 | dma_addr_t pdma_phys_addr0, | |
10270 | dma_addr_t pdma_phys_addr1, | |
10271 | uint16_t xritag) | |
10272 | { | |
10273 | struct lpfc_mbx_post_sgl_pages *post_sgl_pages; | |
10274 | LPFC_MBOXQ_t *mbox; | |
10275 | int rc; | |
10276 | uint32_t shdr_status, shdr_add_status; | |
10277 | union lpfc_sli4_cfg_shdr *shdr; | |
10278 | ||
10279 | if (xritag == NO_XRI) { | |
10280 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
10281 | "0364 Invalid param:\n"); | |
10282 | return -EINVAL; | |
10283 | } | |
10284 | ||
10285 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
10286 | if (!mbox) | |
10287 | return -ENOMEM; | |
10288 | ||
10289 | lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE, | |
10290 | LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES, | |
10291 | sizeof(struct lpfc_mbx_post_sgl_pages) - | |
10292 | sizeof(struct mbox_header), LPFC_SLI4_MBX_EMBED); | |
10293 | ||
10294 | post_sgl_pages = (struct lpfc_mbx_post_sgl_pages *) | |
10295 | &mbox->u.mqe.un.post_sgl_pages; | |
10296 | bf_set(lpfc_post_sgl_pages_xri, post_sgl_pages, xritag); | |
10297 | bf_set(lpfc_post_sgl_pages_xricnt, post_sgl_pages, 1); | |
10298 | ||
10299 | post_sgl_pages->sgl_pg_pairs[0].sgl_pg0_addr_lo = | |
10300 | cpu_to_le32(putPaddrLow(pdma_phys_addr0)); | |
10301 | post_sgl_pages->sgl_pg_pairs[0].sgl_pg0_addr_hi = | |
10302 | cpu_to_le32(putPaddrHigh(pdma_phys_addr0)); | |
10303 | ||
10304 | post_sgl_pages->sgl_pg_pairs[0].sgl_pg1_addr_lo = | |
10305 | cpu_to_le32(putPaddrLow(pdma_phys_addr1)); | |
10306 | post_sgl_pages->sgl_pg_pairs[0].sgl_pg1_addr_hi = | |
10307 | cpu_to_le32(putPaddrHigh(pdma_phys_addr1)); | |
10308 | if (!phba->sli4_hba.intr_enable) | |
10309 | rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL); | |
10310 | else | |
10311 | rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO); | |
10312 | /* The IOCTL status is embedded in the mailbox subheader. */ | |
10313 | shdr = (union lpfc_sli4_cfg_shdr *) &post_sgl_pages->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 (rc != MBX_TIMEOUT) | |
10317 | mempool_free(mbox, phba->mbox_mem_pool); | |
10318 | if (shdr_status || shdr_add_status || rc) { | |
10319 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
10320 | "2511 POST_SGL mailbox failed with " | |
10321 | "status x%x add_status x%x, mbx status x%x\n", | |
10322 | shdr_status, shdr_add_status, rc); | |
10323 | rc = -ENXIO; | |
10324 | } | |
10325 | return 0; | |
10326 | } | |
10327 | /** | |
10328 | * lpfc_sli4_remove_all_sgl_pages - Post scatter gather list for an XRI to HBA | |
10329 | * @phba: The virtual port for which this call being executed. | |
10330 | * | |
10331 | * This routine will remove all of the sgl pages registered with the hba. | |
10332 | * | |
10333 | * Return codes: | |
10334 | * 0 - Success | |
10335 | * -ENXIO, -ENOMEM - Failure | |
10336 | **/ | |
10337 | int | |
10338 | lpfc_sli4_remove_all_sgl_pages(struct lpfc_hba *phba) | |
10339 | { | |
10340 | LPFC_MBOXQ_t *mbox; | |
10341 | int rc; | |
10342 | uint32_t shdr_status, shdr_add_status; | |
10343 | union lpfc_sli4_cfg_shdr *shdr; | |
10344 | ||
10345 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
10346 | if (!mbox) | |
10347 | return -ENOMEM; | |
10348 | ||
10349 | lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE, | |
10350 | LPFC_MBOX_OPCODE_FCOE_REMOVE_SGL_PAGES, 0, | |
10351 | LPFC_SLI4_MBX_EMBED); | |
10352 | if (!phba->sli4_hba.intr_enable) | |
10353 | rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL); | |
10354 | else | |
10355 | rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO); | |
10356 | /* The IOCTL status is embedded in the mailbox subheader. */ | |
10357 | shdr = (union lpfc_sli4_cfg_shdr *) | |
10358 | &mbox->u.mqe.un.sli4_config.header.cfg_shdr; | |
10359 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); | |
10360 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); | |
10361 | if (rc != MBX_TIMEOUT) | |
10362 | mempool_free(mbox, phba->mbox_mem_pool); | |
10363 | if (shdr_status || shdr_add_status || rc) { | |
10364 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
10365 | "2512 REMOVE_ALL_SGL_PAGES mailbox failed with " | |
10366 | "status x%x add_status x%x, mbx status x%x\n", | |
10367 | shdr_status, shdr_add_status, rc); | |
10368 | rc = -ENXIO; | |
10369 | } | |
10370 | return rc; | |
10371 | } | |
10372 | ||
10373 | /** | |
10374 | * lpfc_sli4_next_xritag - Get an xritag for the io | |
10375 | * @phba: Pointer to HBA context object. | |
10376 | * | |
10377 | * This function gets an xritag for the iocb. If there is no unused xritag | |
10378 | * it will return 0xffff. | |
10379 | * The function returns the allocated xritag if successful, else returns zero. | |
10380 | * Zero is not a valid xritag. | |
10381 | * The caller is not required to hold any lock. | |
10382 | **/ | |
10383 | uint16_t | |
10384 | lpfc_sli4_next_xritag(struct lpfc_hba *phba) | |
10385 | { | |
10386 | uint16_t xritag; | |
10387 | ||
10388 | spin_lock_irq(&phba->hbalock); | |
10389 | xritag = phba->sli4_hba.next_xri; | |
10390 | if ((xritag != (uint16_t) -1) && xritag < | |
10391 | (phba->sli4_hba.max_cfg_param.max_xri | |
10392 | + phba->sli4_hba.max_cfg_param.xri_base)) { | |
10393 | phba->sli4_hba.next_xri++; | |
10394 | phba->sli4_hba.max_cfg_param.xri_used++; | |
10395 | spin_unlock_irq(&phba->hbalock); | |
10396 | return xritag; | |
10397 | } | |
10398 | spin_unlock_irq(&phba->hbalock); | |
10399 | ||
10400 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
10401 | "2004 Failed to allocate XRI.last XRITAG is %d" | |
10402 | " Max XRI is %d, Used XRI is %d\n", | |
10403 | phba->sli4_hba.next_xri, | |
10404 | phba->sli4_hba.max_cfg_param.max_xri, | |
10405 | phba->sli4_hba.max_cfg_param.xri_used); | |
10406 | return -1; | |
10407 | } | |
10408 | ||
10409 | /** | |
10410 | * lpfc_sli4_post_sgl_list - post a block of sgl list to the firmware. | |
10411 | * @phba: pointer to lpfc hba data structure. | |
10412 | * | |
10413 | * This routine is invoked to post a block of driver's sgl pages to the | |
10414 | * HBA using non-embedded mailbox command. No Lock is held. This routine | |
10415 | * is only called when the driver is loading and after all IO has been | |
10416 | * stopped. | |
10417 | **/ | |
10418 | int | |
10419 | lpfc_sli4_post_sgl_list(struct lpfc_hba *phba) | |
10420 | { | |
10421 | struct lpfc_sglq *sglq_entry; | |
10422 | struct lpfc_mbx_post_uembed_sgl_page1 *sgl; | |
10423 | struct sgl_page_pairs *sgl_pg_pairs; | |
10424 | void *viraddr; | |
10425 | LPFC_MBOXQ_t *mbox; | |
10426 | uint32_t reqlen, alloclen, pg_pairs; | |
10427 | uint32_t mbox_tmo; | |
10428 | uint16_t xritag_start = 0; | |
10429 | int els_xri_cnt, rc = 0; | |
10430 | uint32_t shdr_status, shdr_add_status; | |
10431 | union lpfc_sli4_cfg_shdr *shdr; | |
10432 | ||
10433 | /* The number of sgls to be posted */ | |
10434 | els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba); | |
10435 | ||
10436 | reqlen = els_xri_cnt * sizeof(struct sgl_page_pairs) + | |
10437 | sizeof(union lpfc_sli4_cfg_shdr) + sizeof(uint32_t); | |
10438 | if (reqlen > PAGE_SIZE) { | |
10439 | lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, | |
10440 | "2559 Block sgl registration required DMA " | |
10441 | "size (%d) great than a page\n", reqlen); | |
10442 | return -ENOMEM; | |
10443 | } | |
10444 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
10445 | if (!mbox) { | |
10446 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
10447 | "2560 Failed to allocate mbox cmd memory\n"); | |
10448 | return -ENOMEM; | |
10449 | } | |
10450 | ||
10451 | /* Allocate DMA memory and set up the non-embedded mailbox command */ | |
10452 | alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE, | |
10453 | LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES, reqlen, | |
10454 | LPFC_SLI4_MBX_NEMBED); | |
10455 | ||
10456 | if (alloclen < reqlen) { | |
10457 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
10458 | "0285 Allocated DMA memory size (%d) is " | |
10459 | "less than the requested DMA memory " | |
10460 | "size (%d)\n", alloclen, reqlen); | |
10461 | lpfc_sli4_mbox_cmd_free(phba, mbox); | |
10462 | return -ENOMEM; | |
10463 | } | |
10464 | ||
10465 | /* Get the first SGE entry from the non-embedded DMA memory */ | |
10466 | if (unlikely(!mbox->sge_array)) { | |
10467 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, | |
10468 | "2525 Failed to get the non-embedded SGE " | |
10469 | "virtual address\n"); | |
10470 | lpfc_sli4_mbox_cmd_free(phba, mbox); | |
10471 | return -ENOMEM; | |
10472 | } | |
10473 | viraddr = mbox->sge_array->addr[0]; | |
10474 | ||
10475 | /* Set up the SGL pages in the non-embedded DMA pages */ | |
10476 | sgl = (struct lpfc_mbx_post_uembed_sgl_page1 *)viraddr; | |
10477 | sgl_pg_pairs = &sgl->sgl_pg_pairs; | |
10478 | ||
10479 | for (pg_pairs = 0; pg_pairs < els_xri_cnt; pg_pairs++) { | |
10480 | sglq_entry = phba->sli4_hba.lpfc_els_sgl_array[pg_pairs]; | |
10481 | /* Set up the sge entry */ | |
10482 | sgl_pg_pairs->sgl_pg0_addr_lo = | |
10483 | cpu_to_le32(putPaddrLow(sglq_entry->phys)); | |
10484 | sgl_pg_pairs->sgl_pg0_addr_hi = | |
10485 | cpu_to_le32(putPaddrHigh(sglq_entry->phys)); | |
10486 | sgl_pg_pairs->sgl_pg1_addr_lo = | |
10487 | cpu_to_le32(putPaddrLow(0)); | |
10488 | sgl_pg_pairs->sgl_pg1_addr_hi = | |
10489 | cpu_to_le32(putPaddrHigh(0)); | |
10490 | /* Keep the first xritag on the list */ | |
10491 | if (pg_pairs == 0) | |
10492 | xritag_start = sglq_entry->sli4_xritag; | |
10493 | sgl_pg_pairs++; | |
10494 | } | |
10495 | bf_set(lpfc_post_sgl_pages_xri, sgl, xritag_start); | |
10496 | pg_pairs = (pg_pairs > 0) ? (pg_pairs - 1) : pg_pairs; | |
10497 | bf_set(lpfc_post_sgl_pages_xricnt, sgl, pg_pairs); | |
10498 | /* Perform endian conversion if necessary */ | |
10499 | sgl->word0 = cpu_to_le32(sgl->word0); | |
10500 | ||
10501 | if (!phba->sli4_hba.intr_enable) | |
10502 | rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL); | |
10503 | else { | |
10504 | mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG); | |
10505 | rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo); | |
10506 | } | |
10507 | shdr = (union lpfc_sli4_cfg_shdr *) &sgl->cfg_shdr; | |
10508 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); | |
10509 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); | |
10510 | if (rc != MBX_TIMEOUT) | |
10511 | lpfc_sli4_mbox_cmd_free(phba, mbox); | |
10512 | if (shdr_status || shdr_add_status || rc) { | |
10513 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
10514 | "2513 POST_SGL_BLOCK mailbox command failed " | |
10515 | "status x%x add_status x%x mbx status x%x\n", | |
10516 | shdr_status, shdr_add_status, rc); | |
10517 | rc = -ENXIO; | |
10518 | } | |
10519 | return rc; | |
10520 | } | |
10521 | ||
10522 | /** | |
10523 | * lpfc_sli4_post_scsi_sgl_block - post a block of scsi sgl list to firmware | |
10524 | * @phba: pointer to lpfc hba data structure. | |
10525 | * @sblist: pointer to scsi buffer list. | |
10526 | * @count: number of scsi buffers on the list. | |
10527 | * | |
10528 | * This routine is invoked to post a block of @count scsi sgl pages from a | |
10529 | * SCSI buffer list @sblist to the HBA using non-embedded mailbox command. | |
10530 | * No Lock is held. | |
10531 | * | |
10532 | **/ | |
10533 | int | |
10534 | lpfc_sli4_post_scsi_sgl_block(struct lpfc_hba *phba, struct list_head *sblist, | |
10535 | int cnt) | |
10536 | { | |
10537 | struct lpfc_scsi_buf *psb; | |
10538 | struct lpfc_mbx_post_uembed_sgl_page1 *sgl; | |
10539 | struct sgl_page_pairs *sgl_pg_pairs; | |
10540 | void *viraddr; | |
10541 | LPFC_MBOXQ_t *mbox; | |
10542 | uint32_t reqlen, alloclen, pg_pairs; | |
10543 | uint32_t mbox_tmo; | |
10544 | uint16_t xritag_start = 0; | |
10545 | int rc = 0; | |
10546 | uint32_t shdr_status, shdr_add_status; | |
10547 | dma_addr_t pdma_phys_bpl1; | |
10548 | union lpfc_sli4_cfg_shdr *shdr; | |
10549 | ||
10550 | /* Calculate the requested length of the dma memory */ | |
10551 | reqlen = cnt * sizeof(struct sgl_page_pairs) + | |
10552 | sizeof(union lpfc_sli4_cfg_shdr) + sizeof(uint32_t); | |
10553 | if (reqlen > PAGE_SIZE) { | |
10554 | lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, | |
10555 | "0217 Block sgl registration required DMA " | |
10556 | "size (%d) great than a page\n", reqlen); | |
10557 | return -ENOMEM; | |
10558 | } | |
10559 | mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
10560 | if (!mbox) { | |
10561 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
10562 | "0283 Failed to allocate mbox cmd memory\n"); | |
10563 | return -ENOMEM; | |
10564 | } | |
10565 | ||
10566 | /* Allocate DMA memory and set up the non-embedded mailbox command */ | |
10567 | alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE, | |
10568 | LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES, reqlen, | |
10569 | LPFC_SLI4_MBX_NEMBED); | |
10570 | ||
10571 | if (alloclen < reqlen) { | |
10572 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
10573 | "2561 Allocated DMA memory size (%d) is " | |
10574 | "less than the requested DMA memory " | |
10575 | "size (%d)\n", alloclen, reqlen); | |
10576 | lpfc_sli4_mbox_cmd_free(phba, mbox); | |
10577 | return -ENOMEM; | |
10578 | } | |
10579 | ||
10580 | /* Get the first SGE entry from the non-embedded DMA memory */ | |
10581 | if (unlikely(!mbox->sge_array)) { | |
10582 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, | |
10583 | "2565 Failed to get the non-embedded SGE " | |
10584 | "virtual address\n"); | |
10585 | lpfc_sli4_mbox_cmd_free(phba, mbox); | |
10586 | return -ENOMEM; | |
10587 | } | |
10588 | viraddr = mbox->sge_array->addr[0]; | |
10589 | ||
10590 | /* Set up the SGL pages in the non-embedded DMA pages */ | |
10591 | sgl = (struct lpfc_mbx_post_uembed_sgl_page1 *)viraddr; | |
10592 | sgl_pg_pairs = &sgl->sgl_pg_pairs; | |
10593 | ||
10594 | pg_pairs = 0; | |
10595 | list_for_each_entry(psb, sblist, list) { | |
10596 | /* Set up the sge entry */ | |
10597 | sgl_pg_pairs->sgl_pg0_addr_lo = | |
10598 | cpu_to_le32(putPaddrLow(psb->dma_phys_bpl)); | |
10599 | sgl_pg_pairs->sgl_pg0_addr_hi = | |
10600 | cpu_to_le32(putPaddrHigh(psb->dma_phys_bpl)); | |
10601 | if (phba->cfg_sg_dma_buf_size > SGL_PAGE_SIZE) | |
10602 | pdma_phys_bpl1 = psb->dma_phys_bpl + SGL_PAGE_SIZE; | |
10603 | else | |
10604 | pdma_phys_bpl1 = 0; | |
10605 | sgl_pg_pairs->sgl_pg1_addr_lo = | |
10606 | cpu_to_le32(putPaddrLow(pdma_phys_bpl1)); | |
10607 | sgl_pg_pairs->sgl_pg1_addr_hi = | |
10608 | cpu_to_le32(putPaddrHigh(pdma_phys_bpl1)); | |
10609 | /* Keep the first xritag on the list */ | |
10610 | if (pg_pairs == 0) | |
10611 | xritag_start = psb->cur_iocbq.sli4_xritag; | |
10612 | sgl_pg_pairs++; | |
10613 | pg_pairs++; | |
10614 | } | |
10615 | bf_set(lpfc_post_sgl_pages_xri, sgl, xritag_start); | |
10616 | bf_set(lpfc_post_sgl_pages_xricnt, sgl, pg_pairs); | |
10617 | /* Perform endian conversion if necessary */ | |
10618 | sgl->word0 = cpu_to_le32(sgl->word0); | |
10619 | ||
10620 | if (!phba->sli4_hba.intr_enable) | |
10621 | rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL); | |
10622 | else { | |
10623 | mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG); | |
10624 | rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo); | |
10625 | } | |
10626 | shdr = (union lpfc_sli4_cfg_shdr *) &sgl->cfg_shdr; | |
10627 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); | |
10628 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); | |
10629 | if (rc != MBX_TIMEOUT) | |
10630 | lpfc_sli4_mbox_cmd_free(phba, mbox); | |
10631 | if (shdr_status || shdr_add_status || rc) { | |
10632 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
10633 | "2564 POST_SGL_BLOCK mailbox command failed " | |
10634 | "status x%x add_status x%x mbx status x%x\n", | |
10635 | shdr_status, shdr_add_status, rc); | |
10636 | rc = -ENXIO; | |
10637 | } | |
10638 | return rc; | |
10639 | } | |
10640 | ||
10641 | /** | |
10642 | * lpfc_fc_frame_check - Check that this frame is a valid frame to handle | |
10643 | * @phba: pointer to lpfc_hba struct that the frame was received on | |
10644 | * @fc_hdr: A pointer to the FC Header data (In Big Endian Format) | |
10645 | * | |
10646 | * This function checks the fields in the @fc_hdr to see if the FC frame is a | |
10647 | * valid type of frame that the LPFC driver will handle. This function will | |
10648 | * return a zero if the frame is a valid frame or a non zero value when the | |
10649 | * frame does not pass the check. | |
10650 | **/ | |
10651 | static int | |
10652 | lpfc_fc_frame_check(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr) | |
10653 | { | |
10654 | char *rctl_names[] = FC_RCTL_NAMES_INIT; | |
10655 | char *type_names[] = FC_TYPE_NAMES_INIT; | |
10656 | struct fc_vft_header *fc_vft_hdr; | |
10657 | ||
10658 | switch (fc_hdr->fh_r_ctl) { | |
10659 | case FC_RCTL_DD_UNCAT: /* uncategorized information */ | |
10660 | case FC_RCTL_DD_SOL_DATA: /* solicited data */ | |
10661 | case FC_RCTL_DD_UNSOL_CTL: /* unsolicited control */ | |
10662 | case FC_RCTL_DD_SOL_CTL: /* solicited control or reply */ | |
10663 | case FC_RCTL_DD_UNSOL_DATA: /* unsolicited data */ | |
10664 | case FC_RCTL_DD_DATA_DESC: /* data descriptor */ | |
10665 | case FC_RCTL_DD_UNSOL_CMD: /* unsolicited command */ | |
10666 | case FC_RCTL_DD_CMD_STATUS: /* command status */ | |
10667 | case FC_RCTL_ELS_REQ: /* extended link services request */ | |
10668 | case FC_RCTL_ELS_REP: /* extended link services reply */ | |
10669 | case FC_RCTL_ELS4_REQ: /* FC-4 ELS request */ | |
10670 | case FC_RCTL_ELS4_REP: /* FC-4 ELS reply */ | |
10671 | case FC_RCTL_BA_NOP: /* basic link service NOP */ | |
10672 | case FC_RCTL_BA_ABTS: /* basic link service abort */ | |
10673 | case FC_RCTL_BA_RMC: /* remove connection */ | |
10674 | case FC_RCTL_BA_ACC: /* basic accept */ | |
10675 | case FC_RCTL_BA_RJT: /* basic reject */ | |
10676 | case FC_RCTL_BA_PRMT: | |
10677 | case FC_RCTL_ACK_1: /* acknowledge_1 */ | |
10678 | case FC_RCTL_ACK_0: /* acknowledge_0 */ | |
10679 | case FC_RCTL_P_RJT: /* port reject */ | |
10680 | case FC_RCTL_F_RJT: /* fabric reject */ | |
10681 | case FC_RCTL_P_BSY: /* port busy */ | |
10682 | case FC_RCTL_F_BSY: /* fabric busy to data frame */ | |
10683 | case FC_RCTL_F_BSYL: /* fabric busy to link control frame */ | |
10684 | case FC_RCTL_LCR: /* link credit reset */ | |
10685 | case FC_RCTL_END: /* end */ | |
10686 | break; | |
10687 | case FC_RCTL_VFTH: /* Virtual Fabric tagging Header */ | |
10688 | fc_vft_hdr = (struct fc_vft_header *)fc_hdr; | |
10689 | fc_hdr = &((struct fc_frame_header *)fc_vft_hdr)[1]; | |
10690 | return lpfc_fc_frame_check(phba, fc_hdr); | |
10691 | default: | |
10692 | goto drop; | |
10693 | } | |
10694 | switch (fc_hdr->fh_type) { | |
10695 | case FC_TYPE_BLS: | |
10696 | case FC_TYPE_ELS: | |
10697 | case FC_TYPE_FCP: | |
10698 | case FC_TYPE_CT: | |
10699 | break; | |
10700 | case FC_TYPE_IP: | |
10701 | case FC_TYPE_ILS: | |
10702 | default: | |
10703 | goto drop; | |
10704 | } | |
10705 | lpfc_printf_log(phba, KERN_INFO, LOG_ELS, | |
10706 | "2538 Received frame rctl:%s type:%s\n", | |
10707 | rctl_names[fc_hdr->fh_r_ctl], | |
10708 | type_names[fc_hdr->fh_type]); | |
10709 | return 0; | |
10710 | drop: | |
10711 | lpfc_printf_log(phba, KERN_WARNING, LOG_ELS, | |
10712 | "2539 Dropped frame rctl:%s type:%s\n", | |
10713 | rctl_names[fc_hdr->fh_r_ctl], | |
10714 | type_names[fc_hdr->fh_type]); | |
10715 | return 1; | |
10716 | } | |
10717 | ||
10718 | /** | |
10719 | * lpfc_fc_hdr_get_vfi - Get the VFI from an FC frame | |
10720 | * @fc_hdr: A pointer to the FC Header data (In Big Endian Format) | |
10721 | * | |
10722 | * This function processes the FC header to retrieve the VFI from the VF | |
10723 | * header, if one exists. This function will return the VFI if one exists | |
10724 | * or 0 if no VSAN Header exists. | |
10725 | **/ | |
10726 | static uint32_t | |
10727 | lpfc_fc_hdr_get_vfi(struct fc_frame_header *fc_hdr) | |
10728 | { | |
10729 | struct fc_vft_header *fc_vft_hdr = (struct fc_vft_header *)fc_hdr; | |
10730 | ||
10731 | if (fc_hdr->fh_r_ctl != FC_RCTL_VFTH) | |
10732 | return 0; | |
10733 | return bf_get(fc_vft_hdr_vf_id, fc_vft_hdr); | |
10734 | } | |
10735 | ||
10736 | /** | |
10737 | * lpfc_fc_frame_to_vport - Finds the vport that a frame is destined to | |
10738 | * @phba: Pointer to the HBA structure to search for the vport on | |
10739 | * @fc_hdr: A pointer to the FC Header data (In Big Endian Format) | |
10740 | * @fcfi: The FC Fabric ID that the frame came from | |
10741 | * | |
10742 | * This function searches the @phba for a vport that matches the content of the | |
10743 | * @fc_hdr passed in and the @fcfi. This function uses the @fc_hdr to fetch the | |
10744 | * VFI, if the Virtual Fabric Tagging Header exists, and the DID. This function | |
10745 | * returns the matching vport pointer or NULL if unable to match frame to a | |
10746 | * vport. | |
10747 | **/ | |
10748 | static struct lpfc_vport * | |
10749 | lpfc_fc_frame_to_vport(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr, | |
10750 | uint16_t fcfi) | |
10751 | { | |
10752 | struct lpfc_vport **vports; | |
10753 | struct lpfc_vport *vport = NULL; | |
10754 | int i; | |
10755 | uint32_t did = (fc_hdr->fh_d_id[0] << 16 | | |
10756 | fc_hdr->fh_d_id[1] << 8 | | |
10757 | fc_hdr->fh_d_id[2]); | |
10758 | ||
10759 | vports = lpfc_create_vport_work_array(phba); | |
10760 | if (vports != NULL) | |
10761 | for (i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) { | |
10762 | if (phba->fcf.fcfi == fcfi && | |
10763 | vports[i]->vfi == lpfc_fc_hdr_get_vfi(fc_hdr) && | |
10764 | vports[i]->fc_myDID == did) { | |
10765 | vport = vports[i]; | |
10766 | break; | |
10767 | } | |
10768 | } | |
10769 | lpfc_destroy_vport_work_array(phba, vports); | |
10770 | return vport; | |
10771 | } | |
10772 | ||
10773 | /** | |
10774 | * lpfc_fc_frame_add - Adds a frame to the vport's list of received sequences | |
10775 | * @dmabuf: pointer to a dmabuf that describes the hdr and data of the FC frame | |
10776 | * | |
10777 | * This function searches through the existing incomplete sequences that have | |
10778 | * been sent to this @vport. If the frame matches one of the incomplete | |
10779 | * sequences then the dbuf in the @dmabuf is added to the list of frames that | |
10780 | * make up that sequence. If no sequence is found that matches this frame then | |
10781 | * the function will add the hbuf in the @dmabuf to the @vport's rcv_buffer_list | |
10782 | * This function returns a pointer to the first dmabuf in the sequence list that | |
10783 | * the frame was linked to. | |
10784 | **/ | |
10785 | static struct hbq_dmabuf * | |
10786 | lpfc_fc_frame_add(struct lpfc_vport *vport, struct hbq_dmabuf *dmabuf) | |
10787 | { | |
10788 | struct fc_frame_header *new_hdr; | |
10789 | struct fc_frame_header *temp_hdr; | |
10790 | struct lpfc_dmabuf *d_buf; | |
10791 | struct lpfc_dmabuf *h_buf; | |
10792 | struct hbq_dmabuf *seq_dmabuf = NULL; | |
10793 | struct hbq_dmabuf *temp_dmabuf = NULL; | |
10794 | ||
10795 | new_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt; | |
10796 | /* Use the hdr_buf to find the sequence that this frame belongs to */ | |
10797 | list_for_each_entry(h_buf, &vport->rcv_buffer_list, list) { | |
10798 | temp_hdr = (struct fc_frame_header *)h_buf->virt; | |
10799 | if ((temp_hdr->fh_seq_id != new_hdr->fh_seq_id) || | |
10800 | (temp_hdr->fh_ox_id != new_hdr->fh_ox_id) || | |
10801 | (memcmp(&temp_hdr->fh_s_id, &new_hdr->fh_s_id, 3))) | |
10802 | continue; | |
10803 | /* found a pending sequence that matches this frame */ | |
10804 | seq_dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf); | |
10805 | break; | |
10806 | } | |
10807 | if (!seq_dmabuf) { | |
10808 | /* | |
10809 | * This indicates first frame received for this sequence. | |
10810 | * Queue the buffer on the vport's rcv_buffer_list. | |
10811 | */ | |
10812 | list_add_tail(&dmabuf->hbuf.list, &vport->rcv_buffer_list); | |
10813 | return dmabuf; | |
10814 | } | |
10815 | temp_hdr = seq_dmabuf->hbuf.virt; | |
10816 | if (new_hdr->fh_seq_cnt < temp_hdr->fh_seq_cnt) { | |
10817 | list_add(&seq_dmabuf->dbuf.list, &dmabuf->dbuf.list); | |
10818 | return dmabuf; | |
10819 | } | |
10820 | /* find the correct place in the sequence to insert this frame */ | |
10821 | list_for_each_entry_reverse(d_buf, &seq_dmabuf->dbuf.list, list) { | |
10822 | temp_dmabuf = container_of(d_buf, struct hbq_dmabuf, dbuf); | |
10823 | temp_hdr = (struct fc_frame_header *)temp_dmabuf->hbuf.virt; | |
10824 | /* | |
10825 | * If the frame's sequence count is greater than the frame on | |
10826 | * the list then insert the frame right after this frame | |
10827 | */ | |
10828 | if (new_hdr->fh_seq_cnt > temp_hdr->fh_seq_cnt) { | |
10829 | list_add(&dmabuf->dbuf.list, &temp_dmabuf->dbuf.list); | |
10830 | return seq_dmabuf; | |
10831 | } | |
10832 | } | |
10833 | return NULL; | |
10834 | } | |
10835 | ||
10836 | /** | |
10837 | * lpfc_seq_complete - Indicates if a sequence is complete | |
10838 | * @dmabuf: pointer to a dmabuf that describes the FC sequence | |
10839 | * | |
10840 | * This function checks the sequence, starting with the frame described by | |
10841 | * @dmabuf, to see if all the frames associated with this sequence are present. | |
10842 | * the frames associated with this sequence are linked to the @dmabuf using the | |
10843 | * dbuf list. This function looks for two major things. 1) That the first frame | |
10844 | * has a sequence count of zero. 2) There is a frame with last frame of sequence | |
10845 | * set. 3) That there are no holes in the sequence count. The function will | |
10846 | * return 1 when the sequence is complete, otherwise it will return 0. | |
10847 | **/ | |
10848 | static int | |
10849 | lpfc_seq_complete(struct hbq_dmabuf *dmabuf) | |
10850 | { | |
10851 | struct fc_frame_header *hdr; | |
10852 | struct lpfc_dmabuf *d_buf; | |
10853 | struct hbq_dmabuf *seq_dmabuf; | |
10854 | uint32_t fctl; | |
10855 | int seq_count = 0; | |
10856 | ||
10857 | hdr = (struct fc_frame_header *)dmabuf->hbuf.virt; | |
10858 | /* make sure first fame of sequence has a sequence count of zero */ | |
10859 | if (hdr->fh_seq_cnt != seq_count) | |
10860 | return 0; | |
10861 | fctl = (hdr->fh_f_ctl[0] << 16 | | |
10862 | hdr->fh_f_ctl[1] << 8 | | |
10863 | hdr->fh_f_ctl[2]); | |
10864 | /* If last frame of sequence we can return success. */ | |
10865 | if (fctl & FC_FC_END_SEQ) | |
10866 | return 1; | |
10867 | list_for_each_entry(d_buf, &dmabuf->dbuf.list, list) { | |
10868 | seq_dmabuf = container_of(d_buf, struct hbq_dmabuf, dbuf); | |
10869 | hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt; | |
10870 | /* If there is a hole in the sequence count then fail. */ | |
10871 | if (++seq_count != hdr->fh_seq_cnt) | |
10872 | return 0; | |
10873 | fctl = (hdr->fh_f_ctl[0] << 16 | | |
10874 | hdr->fh_f_ctl[1] << 8 | | |
10875 | hdr->fh_f_ctl[2]); | |
10876 | /* If last frame of sequence we can return success. */ | |
10877 | if (fctl & FC_FC_END_SEQ) | |
10878 | return 1; | |
10879 | } | |
10880 | return 0; | |
10881 | } | |
10882 | ||
10883 | /** | |
10884 | * lpfc_prep_seq - Prep sequence for ULP processing | |
10885 | * @vport: Pointer to the vport on which this sequence was received | |
10886 | * @dmabuf: pointer to a dmabuf that describes the FC sequence | |
10887 | * | |
10888 | * This function takes a sequence, described by a list of frames, and creates | |
10889 | * a list of iocbq structures to describe the sequence. This iocbq list will be | |
10890 | * used to issue to the generic unsolicited sequence handler. This routine | |
10891 | * returns a pointer to the first iocbq in the list. If the function is unable | |
10892 | * to allocate an iocbq then it throw out the received frames that were not | |
10893 | * able to be described and return a pointer to the first iocbq. If unable to | |
10894 | * allocate any iocbqs (including the first) this function will return NULL. | |
10895 | **/ | |
10896 | static struct lpfc_iocbq * | |
10897 | lpfc_prep_seq(struct lpfc_vport *vport, struct hbq_dmabuf *seq_dmabuf) | |
10898 | { | |
10899 | struct lpfc_dmabuf *d_buf, *n_buf; | |
10900 | struct lpfc_iocbq *first_iocbq, *iocbq; | |
10901 | struct fc_frame_header *fc_hdr; | |
10902 | uint32_t sid; | |
10903 | ||
10904 | fc_hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt; | |
10905 | /* remove from receive buffer list */ | |
10906 | list_del_init(&seq_dmabuf->hbuf.list); | |
10907 | /* get the Remote Port's SID */ | |
10908 | sid = (fc_hdr->fh_s_id[0] << 16 | | |
10909 | fc_hdr->fh_s_id[1] << 8 | | |
10910 | fc_hdr->fh_s_id[2]); | |
10911 | /* Get an iocbq struct to fill in. */ | |
10912 | first_iocbq = lpfc_sli_get_iocbq(vport->phba); | |
10913 | if (first_iocbq) { | |
10914 | /* Initialize the first IOCB. */ | |
10915 | first_iocbq->iocb.ulpStatus = IOSTAT_SUCCESS; | |
10916 | first_iocbq->iocb.ulpCommand = CMD_IOCB_RCV_SEQ64_CX; | |
10917 | first_iocbq->iocb.ulpContext = be16_to_cpu(fc_hdr->fh_ox_id); | |
10918 | first_iocbq->iocb.unsli3.rcvsli3.vpi = | |
10919 | vport->vpi + vport->phba->vpi_base; | |
10920 | /* put the first buffer into the first IOCBq */ | |
10921 | first_iocbq->context2 = &seq_dmabuf->dbuf; | |
10922 | first_iocbq->context3 = NULL; | |
10923 | first_iocbq->iocb.ulpBdeCount = 1; | |
10924 | first_iocbq->iocb.un.cont64[0].tus.f.bdeSize = | |
10925 | LPFC_DATA_BUF_SIZE; | |
10926 | first_iocbq->iocb.un.rcvels.remoteID = sid; | |
10927 | } | |
10928 | iocbq = first_iocbq; | |
10929 | /* | |
10930 | * Each IOCBq can have two Buffers assigned, so go through the list | |
10931 | * of buffers for this sequence and save two buffers in each IOCBq | |
10932 | */ | |
10933 | list_for_each_entry_safe(d_buf, n_buf, &seq_dmabuf->dbuf.list, list) { | |
10934 | if (!iocbq) { | |
10935 | lpfc_in_buf_free(vport->phba, d_buf); | |
10936 | continue; | |
10937 | } | |
10938 | if (!iocbq->context3) { | |
10939 | iocbq->context3 = d_buf; | |
10940 | iocbq->iocb.ulpBdeCount++; | |
10941 | iocbq->iocb.unsli3.rcvsli3.bde2.tus.f.bdeSize = | |
10942 | LPFC_DATA_BUF_SIZE; | |
10943 | } else { | |
10944 | iocbq = lpfc_sli_get_iocbq(vport->phba); | |
10945 | if (!iocbq) { | |
10946 | if (first_iocbq) { | |
10947 | first_iocbq->iocb.ulpStatus = | |
10948 | IOSTAT_FCP_RSP_ERROR; | |
10949 | first_iocbq->iocb.un.ulpWord[4] = | |
10950 | IOERR_NO_RESOURCES; | |
10951 | } | |
10952 | lpfc_in_buf_free(vport->phba, d_buf); | |
10953 | continue; | |
10954 | } | |
10955 | iocbq->context2 = d_buf; | |
10956 | iocbq->context3 = NULL; | |
10957 | iocbq->iocb.ulpBdeCount = 1; | |
10958 | iocbq->iocb.un.cont64[0].tus.f.bdeSize = | |
10959 | LPFC_DATA_BUF_SIZE; | |
10960 | iocbq->iocb.un.rcvels.remoteID = sid; | |
10961 | list_add_tail(&iocbq->list, &first_iocbq->list); | |
10962 | } | |
10963 | } | |
10964 | return first_iocbq; | |
10965 | } | |
10966 | ||
10967 | /** | |
10968 | * lpfc_sli4_handle_received_buffer - Handle received buffers from firmware | |
10969 | * @phba: Pointer to HBA context object. | |
10970 | * | |
10971 | * This function is called with no lock held. This function processes all | |
10972 | * the received buffers and gives it to upper layers when a received buffer | |
10973 | * indicates that it is the final frame in the sequence. The interrupt | |
10974 | * service routine processes received buffers at interrupt contexts and adds | |
10975 | * received dma buffers to the rb_pend_list queue and signals the worker thread. | |
10976 | * Worker thread calls lpfc_sli4_handle_received_buffer, which will call the | |
10977 | * appropriate receive function when the final frame in a sequence is received. | |
10978 | **/ | |
10979 | int | |
10980 | lpfc_sli4_handle_received_buffer(struct lpfc_hba *phba) | |
10981 | { | |
10982 | LIST_HEAD(cmplq); | |
10983 | struct hbq_dmabuf *dmabuf, *seq_dmabuf; | |
10984 | struct fc_frame_header *fc_hdr; | |
10985 | struct lpfc_vport *vport; | |
10986 | uint32_t fcfi; | |
10987 | struct lpfc_iocbq *iocbq; | |
10988 | ||
10989 | /* Clear hba flag and get all received buffers into the cmplq */ | |
10990 | spin_lock_irq(&phba->hbalock); | |
10991 | phba->hba_flag &= ~HBA_RECEIVE_BUFFER; | |
10992 | list_splice_init(&phba->rb_pend_list, &cmplq); | |
10993 | spin_unlock_irq(&phba->hbalock); | |
10994 | ||
10995 | /* Process each received buffer */ | |
10996 | while ((dmabuf = lpfc_sli_hbqbuf_get(&cmplq)) != NULL) { | |
10997 | fc_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt; | |
10998 | /* check to see if this a valid type of frame */ | |
10999 | if (lpfc_fc_frame_check(phba, fc_hdr)) { | |
11000 | lpfc_in_buf_free(phba, &dmabuf->dbuf); | |
11001 | continue; | |
11002 | } | |
11003 | fcfi = bf_get(lpfc_rcqe_fcf_id, &dmabuf->rcqe); | |
11004 | vport = lpfc_fc_frame_to_vport(phba, fc_hdr, fcfi); | |
11005 | if (!vport) { | |
11006 | /* throw out the frame */ | |
11007 | lpfc_in_buf_free(phba, &dmabuf->dbuf); | |
11008 | continue; | |
11009 | } | |
11010 | /* Link this frame */ | |
11011 | seq_dmabuf = lpfc_fc_frame_add(vport, dmabuf); | |
11012 | if (!seq_dmabuf) { | |
11013 | /* unable to add frame to vport - throw it out */ | |
11014 | lpfc_in_buf_free(phba, &dmabuf->dbuf); | |
11015 | continue; | |
11016 | } | |
11017 | /* If not last frame in sequence continue processing frames. */ | |
11018 | if (!lpfc_seq_complete(seq_dmabuf)) { | |
11019 | /* | |
11020 | * When saving off frames post a new one and mark this | |
11021 | * frame to be freed when it is finished. | |
11022 | **/ | |
11023 | lpfc_sli_hbqbuf_fill_hbqs(phba, LPFC_ELS_HBQ, 1); | |
11024 | dmabuf->tag = -1; | |
11025 | continue; | |
11026 | } | |
11027 | fc_hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt; | |
11028 | iocbq = lpfc_prep_seq(vport, seq_dmabuf); | |
11029 | if (!lpfc_complete_unsol_iocb(phba, | |
11030 | &phba->sli.ring[LPFC_ELS_RING], | |
11031 | iocbq, fc_hdr->fh_r_ctl, | |
11032 | fc_hdr->fh_type)) | |
11033 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, | |
11034 | "2540 Ring %d handler: unexpected Rctl " | |
11035 | "x%x Type x%x received\n", | |
11036 | LPFC_ELS_RING, | |
11037 | fc_hdr->fh_r_ctl, fc_hdr->fh_type); | |
11038 | }; | |
11039 | return 0; | |
11040 | } | |
6fb120a7 JS |
11041 | |
11042 | /** | |
11043 | * lpfc_sli4_post_all_rpi_hdrs - Post the rpi header memory region to the port | |
11044 | * @phba: pointer to lpfc hba data structure. | |
11045 | * | |
11046 | * This routine is invoked to post rpi header templates to the | |
11047 | * HBA consistent with the SLI-4 interface spec. This routine | |
11048 | * posts a PAGE_SIZE memory region to the port to hold up to | |
11049 | * PAGE_SIZE modulo 64 rpi context headers. | |
11050 | * | |
11051 | * This routine does not require any locks. It's usage is expected | |
11052 | * to be driver load or reset recovery when the driver is | |
11053 | * sequential. | |
11054 | * | |
11055 | * Return codes | |
11056 | * 0 - sucessful | |
11057 | * EIO - The mailbox failed to complete successfully. | |
11058 | * When this error occurs, the driver is not guaranteed | |
11059 | * to have any rpi regions posted to the device and | |
11060 | * must either attempt to repost the regions or take a | |
11061 | * fatal error. | |
11062 | **/ | |
11063 | int | |
11064 | lpfc_sli4_post_all_rpi_hdrs(struct lpfc_hba *phba) | |
11065 | { | |
11066 | struct lpfc_rpi_hdr *rpi_page; | |
11067 | uint32_t rc = 0; | |
11068 | ||
11069 | /* Post all rpi memory regions to the port. */ | |
11070 | list_for_each_entry(rpi_page, &phba->sli4_hba.lpfc_rpi_hdr_list, list) { | |
11071 | rc = lpfc_sli4_post_rpi_hdr(phba, rpi_page); | |
11072 | if (rc != MBX_SUCCESS) { | |
11073 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
11074 | "2008 Error %d posting all rpi " | |
11075 | "headers\n", rc); | |
11076 | rc = -EIO; | |
11077 | break; | |
11078 | } | |
11079 | } | |
11080 | ||
11081 | return rc; | |
11082 | } | |
11083 | ||
11084 | /** | |
11085 | * lpfc_sli4_post_rpi_hdr - Post an rpi header memory region to the port | |
11086 | * @phba: pointer to lpfc hba data structure. | |
11087 | * @rpi_page: pointer to the rpi memory region. | |
11088 | * | |
11089 | * This routine is invoked to post a single rpi header to the | |
11090 | * HBA consistent with the SLI-4 interface spec. This memory region | |
11091 | * maps up to 64 rpi context regions. | |
11092 | * | |
11093 | * Return codes | |
11094 | * 0 - sucessful | |
11095 | * ENOMEM - No available memory | |
11096 | * EIO - The mailbox failed to complete successfully. | |
11097 | **/ | |
11098 | int | |
11099 | lpfc_sli4_post_rpi_hdr(struct lpfc_hba *phba, struct lpfc_rpi_hdr *rpi_page) | |
11100 | { | |
11101 | LPFC_MBOXQ_t *mboxq; | |
11102 | struct lpfc_mbx_post_hdr_tmpl *hdr_tmpl; | |
11103 | uint32_t rc = 0; | |
11104 | uint32_t mbox_tmo; | |
11105 | uint32_t shdr_status, shdr_add_status; | |
11106 | union lpfc_sli4_cfg_shdr *shdr; | |
11107 | ||
11108 | /* The port is notified of the header region via a mailbox command. */ | |
11109 | mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
11110 | if (!mboxq) { | |
11111 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
11112 | "2001 Unable to allocate memory for issuing " | |
11113 | "SLI_CONFIG_SPECIAL mailbox command\n"); | |
11114 | return -ENOMEM; | |
11115 | } | |
11116 | ||
11117 | /* Post all rpi memory regions to the port. */ | |
11118 | hdr_tmpl = &mboxq->u.mqe.un.hdr_tmpl; | |
11119 | mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG); | |
11120 | lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE, | |
11121 | LPFC_MBOX_OPCODE_FCOE_POST_HDR_TEMPLATE, | |
11122 | sizeof(struct lpfc_mbx_post_hdr_tmpl) - | |
11123 | sizeof(struct mbox_header), LPFC_SLI4_MBX_EMBED); | |
11124 | bf_set(lpfc_mbx_post_hdr_tmpl_page_cnt, | |
11125 | hdr_tmpl, rpi_page->page_count); | |
11126 | bf_set(lpfc_mbx_post_hdr_tmpl_rpi_offset, hdr_tmpl, | |
11127 | rpi_page->start_rpi); | |
11128 | hdr_tmpl->rpi_paddr_lo = putPaddrLow(rpi_page->dmabuf->phys); | |
11129 | hdr_tmpl->rpi_paddr_hi = putPaddrHigh(rpi_page->dmabuf->phys); | |
f1126688 | 11130 | rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); |
6fb120a7 JS |
11131 | shdr = (union lpfc_sli4_cfg_shdr *) &hdr_tmpl->header.cfg_shdr; |
11132 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); | |
11133 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); | |
11134 | if (rc != MBX_TIMEOUT) | |
11135 | mempool_free(mboxq, phba->mbox_mem_pool); | |
11136 | if (shdr_status || shdr_add_status || rc) { | |
11137 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
11138 | "2514 POST_RPI_HDR mailbox failed with " | |
11139 | "status x%x add_status x%x, mbx status x%x\n", | |
11140 | shdr_status, shdr_add_status, rc); | |
11141 | rc = -ENXIO; | |
11142 | } | |
11143 | return rc; | |
11144 | } | |
11145 | ||
11146 | /** | |
11147 | * lpfc_sli4_alloc_rpi - Get an available rpi in the device's range | |
11148 | * @phba: pointer to lpfc hba data structure. | |
11149 | * | |
11150 | * This routine is invoked to post rpi header templates to the | |
11151 | * HBA consistent with the SLI-4 interface spec. This routine | |
11152 | * posts a PAGE_SIZE memory region to the port to hold up to | |
11153 | * PAGE_SIZE modulo 64 rpi context headers. | |
11154 | * | |
11155 | * Returns | |
11156 | * A nonzero rpi defined as rpi_base <= rpi < max_rpi if sucessful | |
11157 | * LPFC_RPI_ALLOC_ERROR if no rpis are available. | |
11158 | **/ | |
11159 | int | |
11160 | lpfc_sli4_alloc_rpi(struct lpfc_hba *phba) | |
11161 | { | |
11162 | int rpi; | |
11163 | uint16_t max_rpi, rpi_base, rpi_limit; | |
11164 | uint16_t rpi_remaining; | |
11165 | struct lpfc_rpi_hdr *rpi_hdr; | |
11166 | ||
11167 | max_rpi = phba->sli4_hba.max_cfg_param.max_rpi; | |
11168 | rpi_base = phba->sli4_hba.max_cfg_param.rpi_base; | |
11169 | rpi_limit = phba->sli4_hba.next_rpi; | |
11170 | ||
11171 | /* | |
11172 | * The valid rpi range is not guaranteed to be zero-based. Start | |
11173 | * the search at the rpi_base as reported by the port. | |
11174 | */ | |
11175 | spin_lock_irq(&phba->hbalock); | |
11176 | rpi = find_next_zero_bit(phba->sli4_hba.rpi_bmask, rpi_limit, rpi_base); | |
11177 | if (rpi >= rpi_limit || rpi < rpi_base) | |
11178 | rpi = LPFC_RPI_ALLOC_ERROR; | |
11179 | else { | |
11180 | set_bit(rpi, phba->sli4_hba.rpi_bmask); | |
11181 | phba->sli4_hba.max_cfg_param.rpi_used++; | |
11182 | phba->sli4_hba.rpi_count++; | |
11183 | } | |
11184 | ||
11185 | /* | |
11186 | * Don't try to allocate more rpi header regions if the device limit | |
11187 | * on available rpis max has been exhausted. | |
11188 | */ | |
11189 | if ((rpi == LPFC_RPI_ALLOC_ERROR) && | |
11190 | (phba->sli4_hba.rpi_count >= max_rpi)) { | |
11191 | spin_unlock_irq(&phba->hbalock); | |
11192 | return rpi; | |
11193 | } | |
11194 | ||
11195 | /* | |
11196 | * If the driver is running low on rpi resources, allocate another | |
11197 | * page now. Note that the next_rpi value is used because | |
11198 | * it represents how many are actually in use whereas max_rpi notes | |
11199 | * how many are supported max by the device. | |
11200 | */ | |
11201 | rpi_remaining = phba->sli4_hba.next_rpi - rpi_base - | |
11202 | phba->sli4_hba.rpi_count; | |
11203 | spin_unlock_irq(&phba->hbalock); | |
11204 | if (rpi_remaining < LPFC_RPI_LOW_WATER_MARK) { | |
11205 | rpi_hdr = lpfc_sli4_create_rpi_hdr(phba); | |
11206 | if (!rpi_hdr) { | |
11207 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
11208 | "2002 Error Could not grow rpi " | |
11209 | "count\n"); | |
11210 | } else { | |
11211 | lpfc_sli4_post_rpi_hdr(phba, rpi_hdr); | |
11212 | } | |
11213 | } | |
11214 | ||
11215 | return rpi; | |
11216 | } | |
11217 | ||
11218 | /** | |
11219 | * lpfc_sli4_free_rpi - Release an rpi for reuse. | |
11220 | * @phba: pointer to lpfc hba data structure. | |
11221 | * | |
11222 | * This routine is invoked to release an rpi to the pool of | |
11223 | * available rpis maintained by the driver. | |
11224 | **/ | |
11225 | void | |
11226 | lpfc_sli4_free_rpi(struct lpfc_hba *phba, int rpi) | |
11227 | { | |
11228 | spin_lock_irq(&phba->hbalock); | |
11229 | clear_bit(rpi, phba->sli4_hba.rpi_bmask); | |
11230 | phba->sli4_hba.rpi_count--; | |
11231 | phba->sli4_hba.max_cfg_param.rpi_used--; | |
11232 | spin_unlock_irq(&phba->hbalock); | |
11233 | } | |
11234 | ||
11235 | /** | |
11236 | * lpfc_sli4_remove_rpis - Remove the rpi bitmask region | |
11237 | * @phba: pointer to lpfc hba data structure. | |
11238 | * | |
11239 | * This routine is invoked to remove the memory region that | |
11240 | * provided rpi via a bitmask. | |
11241 | **/ | |
11242 | void | |
11243 | lpfc_sli4_remove_rpis(struct lpfc_hba *phba) | |
11244 | { | |
11245 | kfree(phba->sli4_hba.rpi_bmask); | |
11246 | } | |
11247 | ||
11248 | /** | |
11249 | * lpfc_sli4_resume_rpi - Remove the rpi bitmask region | |
11250 | * @phba: pointer to lpfc hba data structure. | |
11251 | * | |
11252 | * This routine is invoked to remove the memory region that | |
11253 | * provided rpi via a bitmask. | |
11254 | **/ | |
11255 | int | |
11256 | lpfc_sli4_resume_rpi(struct lpfc_nodelist *ndlp) | |
11257 | { | |
11258 | LPFC_MBOXQ_t *mboxq; | |
11259 | struct lpfc_hba *phba = ndlp->phba; | |
11260 | int rc; | |
11261 | ||
11262 | /* The port is notified of the header region via a mailbox command. */ | |
11263 | mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
11264 | if (!mboxq) | |
11265 | return -ENOMEM; | |
11266 | ||
11267 | /* Post all rpi memory regions to the port. */ | |
11268 | lpfc_resume_rpi(mboxq, ndlp); | |
11269 | rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT); | |
11270 | if (rc == MBX_NOT_FINISHED) { | |
11271 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
11272 | "2010 Resume RPI Mailbox failed " | |
11273 | "status %d, mbxStatus x%x\n", rc, | |
11274 | bf_get(lpfc_mqe_status, &mboxq->u.mqe)); | |
11275 | mempool_free(mboxq, phba->mbox_mem_pool); | |
11276 | return -EIO; | |
11277 | } | |
11278 | return 0; | |
11279 | } | |
11280 | ||
11281 | /** | |
11282 | * lpfc_sli4_init_vpi - Initialize a vpi with the port | |
11283 | * @phba: pointer to lpfc hba data structure. | |
11284 | * @vpi: vpi value to activate with the port. | |
11285 | * | |
11286 | * This routine is invoked to activate a vpi with the | |
11287 | * port when the host intends to use vports with a | |
11288 | * nonzero vpi. | |
11289 | * | |
11290 | * Returns: | |
11291 | * 0 success | |
11292 | * -Evalue otherwise | |
11293 | **/ | |
11294 | int | |
11295 | lpfc_sli4_init_vpi(struct lpfc_hba *phba, uint16_t vpi) | |
11296 | { | |
11297 | LPFC_MBOXQ_t *mboxq; | |
11298 | int rc = 0; | |
11299 | uint32_t mbox_tmo; | |
11300 | ||
11301 | if (vpi == 0) | |
11302 | return -EINVAL; | |
11303 | mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
11304 | if (!mboxq) | |
11305 | return -ENOMEM; | |
11306 | lpfc_init_vpi(mboxq, vpi); | |
11307 | mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_INIT_VPI); | |
11308 | rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); | |
11309 | if (rc != MBX_TIMEOUT) | |
11310 | mempool_free(mboxq, phba->mbox_mem_pool); | |
11311 | if (rc != MBX_SUCCESS) { | |
11312 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, | |
11313 | "2022 INIT VPI Mailbox failed " | |
11314 | "status %d, mbxStatus x%x\n", rc, | |
11315 | bf_get(lpfc_mqe_status, &mboxq->u.mqe)); | |
11316 | rc = -EIO; | |
11317 | } | |
11318 | return rc; | |
11319 | } | |
11320 | ||
11321 | /** | |
11322 | * lpfc_mbx_cmpl_add_fcf_record - add fcf mbox completion handler. | |
11323 | * @phba: pointer to lpfc hba data structure. | |
11324 | * @mboxq: Pointer to mailbox object. | |
11325 | * | |
11326 | * This routine is invoked to manually add a single FCF record. The caller | |
11327 | * must pass a completely initialized FCF_Record. This routine takes | |
11328 | * care of the nonembedded mailbox operations. | |
11329 | **/ | |
11330 | static void | |
11331 | lpfc_mbx_cmpl_add_fcf_record(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) | |
11332 | { | |
11333 | void *virt_addr; | |
11334 | union lpfc_sli4_cfg_shdr *shdr; | |
11335 | uint32_t shdr_status, shdr_add_status; | |
11336 | ||
11337 | virt_addr = mboxq->sge_array->addr[0]; | |
11338 | /* The IOCTL status is embedded in the mailbox subheader. */ | |
11339 | shdr = (union lpfc_sli4_cfg_shdr *) virt_addr; | |
11340 | shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); | |
11341 | shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); | |
11342 | ||
11343 | if ((shdr_status || shdr_add_status) && | |
11344 | (shdr_status != STATUS_FCF_IN_USE)) | |
11345 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
11346 | "2558 ADD_FCF_RECORD mailbox failed with " | |
11347 | "status x%x add_status x%x\n", | |
11348 | shdr_status, shdr_add_status); | |
11349 | ||
11350 | lpfc_sli4_mbox_cmd_free(phba, mboxq); | |
11351 | } | |
11352 | ||
11353 | /** | |
11354 | * lpfc_sli4_add_fcf_record - Manually add an FCF Record. | |
11355 | * @phba: pointer to lpfc hba data structure. | |
11356 | * @fcf_record: pointer to the initialized fcf record to add. | |
11357 | * | |
11358 | * This routine is invoked to manually add a single FCF record. The caller | |
11359 | * must pass a completely initialized FCF_Record. This routine takes | |
11360 | * care of the nonembedded mailbox operations. | |
11361 | **/ | |
11362 | int | |
11363 | lpfc_sli4_add_fcf_record(struct lpfc_hba *phba, struct fcf_record *fcf_record) | |
11364 | { | |
11365 | int rc = 0; | |
11366 | LPFC_MBOXQ_t *mboxq; | |
11367 | uint8_t *bytep; | |
11368 | void *virt_addr; | |
11369 | dma_addr_t phys_addr; | |
11370 | struct lpfc_mbx_sge sge; | |
11371 | uint32_t alloc_len, req_len; | |
11372 | uint32_t fcfindex; | |
11373 | ||
11374 | mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
11375 | if (!mboxq) { | |
11376 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
11377 | "2009 Failed to allocate mbox for ADD_FCF cmd\n"); | |
11378 | return -ENOMEM; | |
11379 | } | |
11380 | ||
11381 | req_len = sizeof(struct fcf_record) + sizeof(union lpfc_sli4_cfg_shdr) + | |
11382 | sizeof(uint32_t); | |
11383 | ||
11384 | /* Allocate DMA memory and set up the non-embedded mailbox command */ | |
11385 | alloc_len = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE, | |
11386 | LPFC_MBOX_OPCODE_FCOE_ADD_FCF, | |
11387 | req_len, LPFC_SLI4_MBX_NEMBED); | |
11388 | if (alloc_len < req_len) { | |
11389 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
11390 | "2523 Allocated DMA memory size (x%x) is " | |
11391 | "less than the requested DMA memory " | |
11392 | "size (x%x)\n", alloc_len, req_len); | |
11393 | lpfc_sli4_mbox_cmd_free(phba, mboxq); | |
11394 | return -ENOMEM; | |
11395 | } | |
11396 | ||
11397 | /* | |
11398 | * Get the first SGE entry from the non-embedded DMA memory. This | |
11399 | * routine only uses a single SGE. | |
11400 | */ | |
11401 | lpfc_sli4_mbx_sge_get(mboxq, 0, &sge); | |
11402 | phys_addr = getPaddr(sge.pa_hi, sge.pa_lo); | |
11403 | if (unlikely(!mboxq->sge_array)) { | |
11404 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, | |
11405 | "2526 Failed to get the non-embedded SGE " | |
11406 | "virtual address\n"); | |
11407 | lpfc_sli4_mbox_cmd_free(phba, mboxq); | |
11408 | return -ENOMEM; | |
11409 | } | |
11410 | virt_addr = mboxq->sge_array->addr[0]; | |
11411 | /* | |
11412 | * Configure the FCF record for FCFI 0. This is the driver's | |
11413 | * hardcoded default and gets used in nonFIP mode. | |
11414 | */ | |
11415 | fcfindex = bf_get(lpfc_fcf_record_fcf_index, fcf_record); | |
11416 | bytep = virt_addr + sizeof(union lpfc_sli4_cfg_shdr); | |
11417 | lpfc_sli_pcimem_bcopy(&fcfindex, bytep, sizeof(uint32_t)); | |
11418 | ||
11419 | /* | |
11420 | * Copy the fcf_index and the FCF Record Data. The data starts after | |
11421 | * the FCoE header plus word10. The data copy needs to be endian | |
11422 | * correct. | |
11423 | */ | |
11424 | bytep += sizeof(uint32_t); | |
11425 | lpfc_sli_pcimem_bcopy(fcf_record, bytep, sizeof(struct fcf_record)); | |
11426 | mboxq->vport = phba->pport; | |
11427 | mboxq->mbox_cmpl = lpfc_mbx_cmpl_add_fcf_record; | |
11428 | rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT); | |
11429 | if (rc == MBX_NOT_FINISHED) { | |
11430 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
11431 | "2515 ADD_FCF_RECORD mailbox failed with " | |
11432 | "status 0x%x\n", rc); | |
11433 | lpfc_sli4_mbox_cmd_free(phba, mboxq); | |
11434 | rc = -EIO; | |
11435 | } else | |
11436 | rc = 0; | |
11437 | ||
11438 | return rc; | |
11439 | } | |
11440 | ||
11441 | /** | |
11442 | * lpfc_sli4_build_dflt_fcf_record - Build the driver's default FCF Record. | |
11443 | * @phba: pointer to lpfc hba data structure. | |
11444 | * @fcf_record: pointer to the fcf record to write the default data. | |
11445 | * @fcf_index: FCF table entry index. | |
11446 | * | |
11447 | * This routine is invoked to build the driver's default FCF record. The | |
11448 | * values used are hardcoded. This routine handles memory initialization. | |
11449 | * | |
11450 | **/ | |
11451 | void | |
11452 | lpfc_sli4_build_dflt_fcf_record(struct lpfc_hba *phba, | |
11453 | struct fcf_record *fcf_record, | |
11454 | uint16_t fcf_index) | |
11455 | { | |
11456 | memset(fcf_record, 0, sizeof(struct fcf_record)); | |
11457 | fcf_record->max_rcv_size = LPFC_FCOE_MAX_RCV_SIZE; | |
11458 | fcf_record->fka_adv_period = LPFC_FCOE_FKA_ADV_PER; | |
11459 | fcf_record->fip_priority = LPFC_FCOE_FIP_PRIORITY; | |
11460 | bf_set(lpfc_fcf_record_mac_0, fcf_record, phba->fc_map[0]); | |
11461 | bf_set(lpfc_fcf_record_mac_1, fcf_record, phba->fc_map[1]); | |
11462 | bf_set(lpfc_fcf_record_mac_2, fcf_record, phba->fc_map[2]); | |
11463 | bf_set(lpfc_fcf_record_mac_3, fcf_record, LPFC_FCOE_FCF_MAC3); | |
11464 | bf_set(lpfc_fcf_record_mac_4, fcf_record, LPFC_FCOE_FCF_MAC4); | |
11465 | bf_set(lpfc_fcf_record_mac_5, fcf_record, LPFC_FCOE_FCF_MAC5); | |
11466 | bf_set(lpfc_fcf_record_fc_map_0, fcf_record, phba->fc_map[0]); | |
11467 | bf_set(lpfc_fcf_record_fc_map_1, fcf_record, phba->fc_map[1]); | |
11468 | bf_set(lpfc_fcf_record_fc_map_2, fcf_record, phba->fc_map[2]); | |
11469 | bf_set(lpfc_fcf_record_fcf_valid, fcf_record, 1); | |
11470 | bf_set(lpfc_fcf_record_fcf_index, fcf_record, fcf_index); | |
11471 | bf_set(lpfc_fcf_record_mac_addr_prov, fcf_record, | |
11472 | LPFC_FCF_FPMA | LPFC_FCF_SPMA); | |
11473 | /* Set the VLAN bit map */ | |
11474 | if (phba->valid_vlan) { | |
11475 | fcf_record->vlan_bitmap[phba->vlan_id / 8] | |
11476 | = 1 << (phba->vlan_id % 8); | |
11477 | } | |
11478 | } | |
11479 | ||
11480 | /** | |
11481 | * lpfc_sli4_read_fcf_record - Read the driver's default FCF Record. | |
11482 | * @phba: pointer to lpfc hba data structure. | |
11483 | * @fcf_index: FCF table entry offset. | |
11484 | * | |
11485 | * This routine is invoked to read up to @fcf_num of FCF record from the | |
11486 | * device starting with the given @fcf_index. | |
11487 | **/ | |
11488 | int | |
11489 | lpfc_sli4_read_fcf_record(struct lpfc_hba *phba, uint16_t fcf_index) | |
11490 | { | |
11491 | int rc = 0, error; | |
11492 | LPFC_MBOXQ_t *mboxq; | |
11493 | void *virt_addr; | |
11494 | dma_addr_t phys_addr; | |
11495 | uint8_t *bytep; | |
11496 | struct lpfc_mbx_sge sge; | |
11497 | uint32_t alloc_len, req_len; | |
11498 | struct lpfc_mbx_read_fcf_tbl *read_fcf; | |
11499 | ||
11500 | mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); | |
11501 | if (!mboxq) { | |
11502 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
11503 | "2000 Failed to allocate mbox for " | |
11504 | "READ_FCF cmd\n"); | |
11505 | return -ENOMEM; | |
11506 | } | |
11507 | ||
11508 | req_len = sizeof(struct fcf_record) + | |
11509 | sizeof(union lpfc_sli4_cfg_shdr) + 2 * sizeof(uint32_t); | |
11510 | ||
11511 | /* Set up READ_FCF SLI4_CONFIG mailbox-ioctl command */ | |
11512 | alloc_len = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE, | |
11513 | LPFC_MBOX_OPCODE_FCOE_READ_FCF_TABLE, req_len, | |
11514 | LPFC_SLI4_MBX_NEMBED); | |
11515 | ||
11516 | if (alloc_len < req_len) { | |
11517 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
11518 | "0291 Allocated DMA memory size (x%x) is " | |
11519 | "less than the requested DMA memory " | |
11520 | "size (x%x)\n", alloc_len, req_len); | |
11521 | lpfc_sli4_mbox_cmd_free(phba, mboxq); | |
11522 | return -ENOMEM; | |
11523 | } | |
11524 | ||
11525 | /* Get the first SGE entry from the non-embedded DMA memory. This | |
11526 | * routine only uses a single SGE. | |
11527 | */ | |
11528 | lpfc_sli4_mbx_sge_get(mboxq, 0, &sge); | |
11529 | phys_addr = getPaddr(sge.pa_hi, sge.pa_lo); | |
11530 | if (unlikely(!mboxq->sge_array)) { | |
11531 | lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, | |
11532 | "2527 Failed to get the non-embedded SGE " | |
11533 | "virtual address\n"); | |
11534 | lpfc_sli4_mbox_cmd_free(phba, mboxq); | |
11535 | return -ENOMEM; | |
11536 | } | |
11537 | virt_addr = mboxq->sge_array->addr[0]; | |
11538 | read_fcf = (struct lpfc_mbx_read_fcf_tbl *)virt_addr; | |
11539 | ||
11540 | /* Set up command fields */ | |
11541 | bf_set(lpfc_mbx_read_fcf_tbl_indx, &read_fcf->u.request, fcf_index); | |
11542 | /* Perform necessary endian conversion */ | |
11543 | bytep = virt_addr + sizeof(union lpfc_sli4_cfg_shdr); | |
11544 | lpfc_sli_pcimem_bcopy(bytep, bytep, sizeof(uint32_t)); | |
11545 | mboxq->vport = phba->pport; | |
11546 | mboxq->mbox_cmpl = lpfc_mbx_cmpl_read_fcf_record; | |
11547 | rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT); | |
11548 | if (rc == MBX_NOT_FINISHED) { | |
11549 | lpfc_sli4_mbox_cmd_free(phba, mboxq); | |
11550 | error = -EIO; | |
11551 | } else | |
11552 | error = 0; | |
11553 | return error; | |
11554 | } |