Commit | Line | Data |
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d85296cf | 1 | /******************************************************************* |
dea3101e | 2 | * This file is part of the Emulex Linux Device Driver for * |
c44ce173 | 3 | * Fibre Channel Host Bus Adapters. * |
acd6859b | 4 | * Copyright (C) 2004-2012 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 | *******************************************************************/ |
dea3101e | 21 | #include <linux/pci.h> |
5a0e3ad6 | 22 | #include <linux/slab.h> |
dea3101e | 23 | #include <linux/interrupt.h> |
09703660 | 24 | #include <linux/export.h> |
a90f5684 | 25 | #include <linux/delay.h> |
e2a0a9d6 | 26 | #include <asm/unaligned.h> |
dea3101e | 27 | |
28 | #include <scsi/scsi.h> | |
29 | #include <scsi/scsi_device.h> | |
e2a0a9d6 | 30 | #include <scsi/scsi_eh.h> |
dea3101e | 31 | #include <scsi/scsi_host.h> |
32 | #include <scsi/scsi_tcq.h> | |
33 | #include <scsi/scsi_transport_fc.h> | |
34 | ||
35 | #include "lpfc_version.h" | |
da0436e9 | 36 | #include "lpfc_hw4.h" |
dea3101e | 37 | #include "lpfc_hw.h" |
38 | #include "lpfc_sli.h" | |
da0436e9 | 39 | #include "lpfc_sli4.h" |
ea2151b4 | 40 | #include "lpfc_nl.h" |
dea3101e | 41 | #include "lpfc_disc.h" |
dea3101e | 42 | #include "lpfc.h" |
9a6b09c0 | 43 | #include "lpfc_scsi.h" |
dea3101e | 44 | #include "lpfc_logmsg.h" |
45 | #include "lpfc_crtn.h" | |
92d7f7b0 | 46 | #include "lpfc_vport.h" |
dea3101e | 47 | |
48 | #define LPFC_RESET_WAIT 2 | |
49 | #define LPFC_ABORT_WAIT 2 | |
50 | ||
e2a0a9d6 JS |
51 | int _dump_buf_done; |
52 | ||
53 | static char *dif_op_str[] = { | |
9a6b09c0 JS |
54 | "PROT_NORMAL", |
55 | "PROT_READ_INSERT", | |
56 | "PROT_WRITE_STRIP", | |
57 | "PROT_READ_STRIP", | |
58 | "PROT_WRITE_INSERT", | |
59 | "PROT_READ_PASS", | |
60 | "PROT_WRITE_PASS", | |
61 | }; | |
62 | ||
63 | static char *dif_grd_str[] = { | |
64 | "NO_GUARD", | |
65 | "DIF_CRC", | |
66 | "DIX_IP", | |
e2a0a9d6 | 67 | }; |
f9bb2da1 JS |
68 | |
69 | struct scsi_dif_tuple { | |
70 | __be16 guard_tag; /* Checksum */ | |
71 | __be16 app_tag; /* Opaque storage */ | |
72 | __be32 ref_tag; /* Target LBA or indirect LBA */ | |
73 | }; | |
74 | ||
da0436e9 JS |
75 | static void |
76 | lpfc_release_scsi_buf_s4(struct lpfc_hba *phba, struct lpfc_scsi_buf *psb); | |
1c6f4ef5 JS |
77 | static void |
78 | lpfc_release_scsi_buf_s3(struct lpfc_hba *phba, struct lpfc_scsi_buf *psb); | |
e2a0a9d6 JS |
79 | |
80 | static void | |
6a9c52cf | 81 | lpfc_debug_save_data(struct lpfc_hba *phba, struct scsi_cmnd *cmnd) |
e2a0a9d6 JS |
82 | { |
83 | void *src, *dst; | |
84 | struct scatterlist *sgde = scsi_sglist(cmnd); | |
85 | ||
86 | if (!_dump_buf_data) { | |
6a9c52cf JS |
87 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, |
88 | "9050 BLKGRD: ERROR %s _dump_buf_data is NULL\n", | |
e2a0a9d6 JS |
89 | __func__); |
90 | return; | |
91 | } | |
92 | ||
93 | ||
94 | if (!sgde) { | |
6a9c52cf JS |
95 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, |
96 | "9051 BLKGRD: ERROR: data scatterlist is null\n"); | |
e2a0a9d6 JS |
97 | return; |
98 | } | |
99 | ||
100 | dst = (void *) _dump_buf_data; | |
101 | while (sgde) { | |
102 | src = sg_virt(sgde); | |
103 | memcpy(dst, src, sgde->length); | |
104 | dst += sgde->length; | |
105 | sgde = sg_next(sgde); | |
106 | } | |
107 | } | |
108 | ||
109 | static void | |
6a9c52cf | 110 | lpfc_debug_save_dif(struct lpfc_hba *phba, struct scsi_cmnd *cmnd) |
e2a0a9d6 JS |
111 | { |
112 | void *src, *dst; | |
113 | struct scatterlist *sgde = scsi_prot_sglist(cmnd); | |
114 | ||
115 | if (!_dump_buf_dif) { | |
6a9c52cf JS |
116 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, |
117 | "9052 BLKGRD: ERROR %s _dump_buf_data is NULL\n", | |
e2a0a9d6 JS |
118 | __func__); |
119 | return; | |
120 | } | |
121 | ||
122 | if (!sgde) { | |
6a9c52cf JS |
123 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, |
124 | "9053 BLKGRD: ERROR: prot scatterlist is null\n"); | |
e2a0a9d6 JS |
125 | return; |
126 | } | |
127 | ||
128 | dst = _dump_buf_dif; | |
129 | while (sgde) { | |
130 | src = sg_virt(sgde); | |
131 | memcpy(dst, src, sgde->length); | |
132 | dst += sgde->length; | |
133 | sgde = sg_next(sgde); | |
134 | } | |
135 | } | |
136 | ||
f1126688 JS |
137 | /** |
138 | * lpfc_sli4_set_rsp_sgl_last - Set the last bit in the response sge. | |
139 | * @phba: Pointer to HBA object. | |
140 | * @lpfc_cmd: lpfc scsi command object pointer. | |
141 | * | |
142 | * This function is called from the lpfc_prep_task_mgmt_cmd function to | |
143 | * set the last bit in the response sge entry. | |
144 | **/ | |
145 | static void | |
146 | lpfc_sli4_set_rsp_sgl_last(struct lpfc_hba *phba, | |
147 | struct lpfc_scsi_buf *lpfc_cmd) | |
148 | { | |
149 | struct sli4_sge *sgl = (struct sli4_sge *)lpfc_cmd->fcp_bpl; | |
150 | if (sgl) { | |
151 | sgl += 1; | |
152 | sgl->word2 = le32_to_cpu(sgl->word2); | |
153 | bf_set(lpfc_sli4_sge_last, sgl, 1); | |
154 | sgl->word2 = cpu_to_le32(sgl->word2); | |
155 | } | |
156 | } | |
157 | ||
ea2151b4 | 158 | /** |
3621a710 | 159 | * lpfc_update_stats - Update statistical data for the command completion |
ea2151b4 JS |
160 | * @phba: Pointer to HBA object. |
161 | * @lpfc_cmd: lpfc scsi command object pointer. | |
162 | * | |
163 | * This function is called when there is a command completion and this | |
164 | * function updates the statistical data for the command completion. | |
165 | **/ | |
166 | static void | |
167 | lpfc_update_stats(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd) | |
168 | { | |
169 | struct lpfc_rport_data *rdata = lpfc_cmd->rdata; | |
170 | struct lpfc_nodelist *pnode = rdata->pnode; | |
171 | struct scsi_cmnd *cmd = lpfc_cmd->pCmd; | |
172 | unsigned long flags; | |
173 | struct Scsi_Host *shost = cmd->device->host; | |
174 | struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; | |
175 | unsigned long latency; | |
176 | int i; | |
177 | ||
178 | if (cmd->result) | |
179 | return; | |
180 | ||
9f1e1b50 JS |
181 | latency = jiffies_to_msecs((long)jiffies - (long)lpfc_cmd->start_time); |
182 | ||
ea2151b4 JS |
183 | spin_lock_irqsave(shost->host_lock, flags); |
184 | if (!vport->stat_data_enabled || | |
185 | vport->stat_data_blocked || | |
5989b8d4 | 186 | !pnode || |
ea2151b4 JS |
187 | !pnode->lat_data || |
188 | (phba->bucket_type == LPFC_NO_BUCKET)) { | |
189 | spin_unlock_irqrestore(shost->host_lock, flags); | |
190 | return; | |
191 | } | |
ea2151b4 JS |
192 | |
193 | if (phba->bucket_type == LPFC_LINEAR_BUCKET) { | |
194 | i = (latency + phba->bucket_step - 1 - phba->bucket_base)/ | |
195 | phba->bucket_step; | |
9f1e1b50 JS |
196 | /* check array subscript bounds */ |
197 | if (i < 0) | |
198 | i = 0; | |
199 | else if (i >= LPFC_MAX_BUCKET_COUNT) | |
200 | i = LPFC_MAX_BUCKET_COUNT - 1; | |
ea2151b4 JS |
201 | } else { |
202 | for (i = 0; i < LPFC_MAX_BUCKET_COUNT-1; i++) | |
203 | if (latency <= (phba->bucket_base + | |
204 | ((1<<i)*phba->bucket_step))) | |
205 | break; | |
206 | } | |
207 | ||
208 | pnode->lat_data[i].cmd_count++; | |
209 | spin_unlock_irqrestore(shost->host_lock, flags); | |
210 | } | |
211 | ||
ea2151b4 | 212 | /** |
3621a710 | 213 | * lpfc_send_sdev_queuedepth_change_event - Posts a queuedepth change event |
ea2151b4 JS |
214 | * @phba: Pointer to HBA context object. |
215 | * @vport: Pointer to vport object. | |
216 | * @ndlp: Pointer to FC node associated with the target. | |
217 | * @lun: Lun number of the scsi device. | |
218 | * @old_val: Old value of the queue depth. | |
219 | * @new_val: New value of the queue depth. | |
220 | * | |
221 | * This function sends an event to the mgmt application indicating | |
222 | * there is a change in the scsi device queue depth. | |
223 | **/ | |
224 | static void | |
225 | lpfc_send_sdev_queuedepth_change_event(struct lpfc_hba *phba, | |
226 | struct lpfc_vport *vport, | |
227 | struct lpfc_nodelist *ndlp, | |
228 | uint32_t lun, | |
229 | uint32_t old_val, | |
230 | uint32_t new_val) | |
231 | { | |
232 | struct lpfc_fast_path_event *fast_path_evt; | |
233 | unsigned long flags; | |
234 | ||
235 | fast_path_evt = lpfc_alloc_fast_evt(phba); | |
236 | if (!fast_path_evt) | |
237 | return; | |
238 | ||
239 | fast_path_evt->un.queue_depth_evt.scsi_event.event_type = | |
240 | FC_REG_SCSI_EVENT; | |
241 | fast_path_evt->un.queue_depth_evt.scsi_event.subcategory = | |
242 | LPFC_EVENT_VARQUEDEPTH; | |
243 | ||
244 | /* Report all luns with change in queue depth */ | |
245 | fast_path_evt->un.queue_depth_evt.scsi_event.lun = lun; | |
246 | if (ndlp && NLP_CHK_NODE_ACT(ndlp)) { | |
247 | memcpy(&fast_path_evt->un.queue_depth_evt.scsi_event.wwpn, | |
248 | &ndlp->nlp_portname, sizeof(struct lpfc_name)); | |
249 | memcpy(&fast_path_evt->un.queue_depth_evt.scsi_event.wwnn, | |
250 | &ndlp->nlp_nodename, sizeof(struct lpfc_name)); | |
251 | } | |
252 | ||
253 | fast_path_evt->un.queue_depth_evt.oldval = old_val; | |
254 | fast_path_evt->un.queue_depth_evt.newval = new_val; | |
255 | fast_path_evt->vport = vport; | |
256 | ||
257 | fast_path_evt->work_evt.evt = LPFC_EVT_FASTPATH_MGMT_EVT; | |
258 | spin_lock_irqsave(&phba->hbalock, flags); | |
259 | list_add_tail(&fast_path_evt->work_evt.evt_listp, &phba->work_list); | |
260 | spin_unlock_irqrestore(&phba->hbalock, flags); | |
261 | lpfc_worker_wake_up(phba); | |
262 | ||
263 | return; | |
264 | } | |
265 | ||
5ffc266e JS |
266 | /** |
267 | * lpfc_change_queue_depth - Alter scsi device queue depth | |
268 | * @sdev: Pointer the scsi device on which to change the queue depth. | |
269 | * @qdepth: New queue depth to set the sdev to. | |
270 | * @reason: The reason for the queue depth change. | |
271 | * | |
272 | * This function is called by the midlayer and the LLD to alter the queue | |
273 | * depth for a scsi device. This function sets the queue depth to the new | |
274 | * value and sends an event out to log the queue depth change. | |
275 | **/ | |
276 | int | |
277 | lpfc_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason) | |
278 | { | |
279 | struct lpfc_vport *vport = (struct lpfc_vport *) sdev->host->hostdata; | |
280 | struct lpfc_hba *phba = vport->phba; | |
281 | struct lpfc_rport_data *rdata; | |
282 | unsigned long new_queue_depth, old_queue_depth; | |
283 | ||
284 | old_queue_depth = sdev->queue_depth; | |
285 | scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth); | |
286 | new_queue_depth = sdev->queue_depth; | |
287 | rdata = sdev->hostdata; | |
288 | if (rdata) | |
289 | lpfc_send_sdev_queuedepth_change_event(phba, vport, | |
290 | rdata->pnode, sdev->lun, | |
291 | old_queue_depth, | |
292 | new_queue_depth); | |
293 | return sdev->queue_depth; | |
294 | } | |
295 | ||
9bad7671 | 296 | /** |
3621a710 | 297 | * lpfc_rampdown_queue_depth - Post RAMP_DOWN_QUEUE event to worker thread |
9bad7671 JS |
298 | * @phba: The Hba for which this call is being executed. |
299 | * | |
300 | * This routine is called when there is resource error in driver or firmware. | |
301 | * This routine posts WORKER_RAMP_DOWN_QUEUE event for @phba. This routine | |
302 | * posts at most 1 event each second. This routine wakes up worker thread of | |
303 | * @phba to process WORKER_RAM_DOWN_EVENT event. | |
304 | * | |
305 | * This routine should be called with no lock held. | |
306 | **/ | |
92d7f7b0 | 307 | void |
eaf15d5b | 308 | lpfc_rampdown_queue_depth(struct lpfc_hba *phba) |
92d7f7b0 JS |
309 | { |
310 | unsigned long flags; | |
5e9d9b82 | 311 | uint32_t evt_posted; |
92d7f7b0 JS |
312 | |
313 | spin_lock_irqsave(&phba->hbalock, flags); | |
314 | atomic_inc(&phba->num_rsrc_err); | |
315 | phba->last_rsrc_error_time = jiffies; | |
316 | ||
317 | if ((phba->last_ramp_down_time + QUEUE_RAMP_DOWN_INTERVAL) > jiffies) { | |
318 | spin_unlock_irqrestore(&phba->hbalock, flags); | |
319 | return; | |
320 | } | |
321 | ||
322 | phba->last_ramp_down_time = jiffies; | |
323 | ||
324 | spin_unlock_irqrestore(&phba->hbalock, flags); | |
325 | ||
326 | spin_lock_irqsave(&phba->pport->work_port_lock, flags); | |
5e9d9b82 JS |
327 | evt_posted = phba->pport->work_port_events & WORKER_RAMP_DOWN_QUEUE; |
328 | if (!evt_posted) | |
92d7f7b0 | 329 | phba->pport->work_port_events |= WORKER_RAMP_DOWN_QUEUE; |
92d7f7b0 JS |
330 | spin_unlock_irqrestore(&phba->pport->work_port_lock, flags); |
331 | ||
5e9d9b82 JS |
332 | if (!evt_posted) |
333 | lpfc_worker_wake_up(phba); | |
92d7f7b0 JS |
334 | return; |
335 | } | |
336 | ||
9bad7671 | 337 | /** |
3621a710 | 338 | * lpfc_rampup_queue_depth - Post RAMP_UP_QUEUE event for worker thread |
9bad7671 JS |
339 | * @phba: The Hba for which this call is being executed. |
340 | * | |
341 | * This routine post WORKER_RAMP_UP_QUEUE event for @phba vport. This routine | |
342 | * post at most 1 event every 5 minute after last_ramp_up_time or | |
343 | * last_rsrc_error_time. This routine wakes up worker thread of @phba | |
344 | * to process WORKER_RAM_DOWN_EVENT event. | |
345 | * | |
346 | * This routine should be called with no lock held. | |
347 | **/ | |
92d7f7b0 | 348 | static inline void |
3de2a653 | 349 | lpfc_rampup_queue_depth(struct lpfc_vport *vport, |
a257bf90 | 350 | uint32_t queue_depth) |
92d7f7b0 JS |
351 | { |
352 | unsigned long flags; | |
3de2a653 | 353 | struct lpfc_hba *phba = vport->phba; |
5e9d9b82 | 354 | uint32_t evt_posted; |
92d7f7b0 JS |
355 | atomic_inc(&phba->num_cmd_success); |
356 | ||
a257bf90 | 357 | if (vport->cfg_lun_queue_depth <= queue_depth) |
92d7f7b0 | 358 | return; |
92d7f7b0 | 359 | spin_lock_irqsave(&phba->hbalock, flags); |
5ffc266e JS |
360 | if (time_before(jiffies, |
361 | phba->last_ramp_up_time + QUEUE_RAMP_UP_INTERVAL) || | |
362 | time_before(jiffies, | |
363 | phba->last_rsrc_error_time + QUEUE_RAMP_UP_INTERVAL)) { | |
92d7f7b0 JS |
364 | spin_unlock_irqrestore(&phba->hbalock, flags); |
365 | return; | |
366 | } | |
92d7f7b0 JS |
367 | phba->last_ramp_up_time = jiffies; |
368 | spin_unlock_irqrestore(&phba->hbalock, flags); | |
369 | ||
370 | spin_lock_irqsave(&phba->pport->work_port_lock, flags); | |
5e9d9b82 JS |
371 | evt_posted = phba->pport->work_port_events & WORKER_RAMP_UP_QUEUE; |
372 | if (!evt_posted) | |
92d7f7b0 | 373 | phba->pport->work_port_events |= WORKER_RAMP_UP_QUEUE; |
92d7f7b0 JS |
374 | spin_unlock_irqrestore(&phba->pport->work_port_lock, flags); |
375 | ||
5e9d9b82 JS |
376 | if (!evt_posted) |
377 | lpfc_worker_wake_up(phba); | |
378 | return; | |
92d7f7b0 JS |
379 | } |
380 | ||
9bad7671 | 381 | /** |
3621a710 | 382 | * lpfc_ramp_down_queue_handler - WORKER_RAMP_DOWN_QUEUE event handler |
9bad7671 JS |
383 | * @phba: The Hba for which this call is being executed. |
384 | * | |
385 | * This routine is called to process WORKER_RAMP_DOWN_QUEUE event for worker | |
386 | * thread.This routine reduces queue depth for all scsi device on each vport | |
387 | * associated with @phba. | |
388 | **/ | |
92d7f7b0 JS |
389 | void |
390 | lpfc_ramp_down_queue_handler(struct lpfc_hba *phba) | |
391 | { | |
549e55cd JS |
392 | struct lpfc_vport **vports; |
393 | struct Scsi_Host *shost; | |
92d7f7b0 | 394 | struct scsi_device *sdev; |
5ffc266e | 395 | unsigned long new_queue_depth; |
92d7f7b0 | 396 | unsigned long num_rsrc_err, num_cmd_success; |
549e55cd | 397 | int i; |
92d7f7b0 JS |
398 | |
399 | num_rsrc_err = atomic_read(&phba->num_rsrc_err); | |
400 | num_cmd_success = atomic_read(&phba->num_cmd_success); | |
401 | ||
549e55cd JS |
402 | vports = lpfc_create_vport_work_array(phba); |
403 | if (vports != NULL) | |
21e9a0a5 | 404 | for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { |
549e55cd JS |
405 | shost = lpfc_shost_from_vport(vports[i]); |
406 | shost_for_each_device(sdev, shost) { | |
92d7f7b0 | 407 | new_queue_depth = |
549e55cd JS |
408 | sdev->queue_depth * num_rsrc_err / |
409 | (num_rsrc_err + num_cmd_success); | |
410 | if (!new_queue_depth) | |
411 | new_queue_depth = sdev->queue_depth - 1; | |
412 | else | |
413 | new_queue_depth = sdev->queue_depth - | |
414 | new_queue_depth; | |
5ffc266e JS |
415 | lpfc_change_queue_depth(sdev, new_queue_depth, |
416 | SCSI_QDEPTH_DEFAULT); | |
549e55cd | 417 | } |
92d7f7b0 | 418 | } |
09372820 | 419 | lpfc_destroy_vport_work_array(phba, vports); |
92d7f7b0 JS |
420 | atomic_set(&phba->num_rsrc_err, 0); |
421 | atomic_set(&phba->num_cmd_success, 0); | |
422 | } | |
423 | ||
9bad7671 | 424 | /** |
3621a710 | 425 | * lpfc_ramp_up_queue_handler - WORKER_RAMP_UP_QUEUE event handler |
9bad7671 JS |
426 | * @phba: The Hba for which this call is being executed. |
427 | * | |
428 | * This routine is called to process WORKER_RAMP_UP_QUEUE event for worker | |
429 | * thread.This routine increases queue depth for all scsi device on each vport | |
430 | * associated with @phba by 1. This routine also sets @phba num_rsrc_err and | |
431 | * num_cmd_success to zero. | |
432 | **/ | |
92d7f7b0 JS |
433 | void |
434 | lpfc_ramp_up_queue_handler(struct lpfc_hba *phba) | |
435 | { | |
549e55cd JS |
436 | struct lpfc_vport **vports; |
437 | struct Scsi_Host *shost; | |
92d7f7b0 | 438 | struct scsi_device *sdev; |
549e55cd JS |
439 | int i; |
440 | ||
441 | vports = lpfc_create_vport_work_array(phba); | |
442 | if (vports != NULL) | |
21e9a0a5 | 443 | for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { |
549e55cd JS |
444 | shost = lpfc_shost_from_vport(vports[i]); |
445 | shost_for_each_device(sdev, shost) { | |
97eab634 JS |
446 | if (vports[i]->cfg_lun_queue_depth <= |
447 | sdev->queue_depth) | |
448 | continue; | |
5ffc266e JS |
449 | lpfc_change_queue_depth(sdev, |
450 | sdev->queue_depth+1, | |
451 | SCSI_QDEPTH_RAMP_UP); | |
549e55cd | 452 | } |
92d7f7b0 | 453 | } |
09372820 | 454 | lpfc_destroy_vport_work_array(phba, vports); |
92d7f7b0 JS |
455 | atomic_set(&phba->num_rsrc_err, 0); |
456 | atomic_set(&phba->num_cmd_success, 0); | |
457 | } | |
458 | ||
a8e497d5 | 459 | /** |
3621a710 | 460 | * lpfc_scsi_dev_block - set all scsi hosts to block state |
a8e497d5 JS |
461 | * @phba: Pointer to HBA context object. |
462 | * | |
463 | * This function walks vport list and set each SCSI host to block state | |
464 | * by invoking fc_remote_port_delete() routine. This function is invoked | |
465 | * with EEH when device's PCI slot has been permanently disabled. | |
466 | **/ | |
467 | void | |
468 | lpfc_scsi_dev_block(struct lpfc_hba *phba) | |
469 | { | |
470 | struct lpfc_vport **vports; | |
471 | struct Scsi_Host *shost; | |
472 | struct scsi_device *sdev; | |
473 | struct fc_rport *rport; | |
474 | int i; | |
475 | ||
476 | vports = lpfc_create_vport_work_array(phba); | |
477 | if (vports != NULL) | |
21e9a0a5 | 478 | for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { |
a8e497d5 JS |
479 | shost = lpfc_shost_from_vport(vports[i]); |
480 | shost_for_each_device(sdev, shost) { | |
481 | rport = starget_to_rport(scsi_target(sdev)); | |
482 | fc_remote_port_delete(rport); | |
483 | } | |
484 | } | |
485 | lpfc_destroy_vport_work_array(phba, vports); | |
486 | } | |
487 | ||
9bad7671 | 488 | /** |
3772a991 | 489 | * lpfc_new_scsi_buf_s3 - Scsi buffer allocator for HBA with SLI3 IF spec |
9bad7671 | 490 | * @vport: The virtual port for which this call being executed. |
3772a991 | 491 | * @num_to_allocate: The requested number of buffers to allocate. |
9bad7671 | 492 | * |
3772a991 JS |
493 | * This routine allocates a scsi buffer for device with SLI-3 interface spec, |
494 | * the scsi buffer contains all the necessary information needed to initiate | |
495 | * a SCSI I/O. The non-DMAable buffer region contains information to build | |
496 | * the IOCB. The DMAable region contains memory for the FCP CMND, FCP RSP, | |
497 | * and the initial BPL. In addition to allocating memory, the FCP CMND and | |
498 | * FCP RSP BDEs are setup in the BPL and the BPL BDE is setup in the IOCB. | |
9bad7671 JS |
499 | * |
500 | * Return codes: | |
3772a991 JS |
501 | * int - number of scsi buffers that were allocated. |
502 | * 0 = failure, less than num_to_alloc is a partial failure. | |
9bad7671 | 503 | **/ |
3772a991 JS |
504 | static int |
505 | lpfc_new_scsi_buf_s3(struct lpfc_vport *vport, int num_to_alloc) | |
dea3101e | 506 | { |
2e0fef85 | 507 | struct lpfc_hba *phba = vport->phba; |
dea3101e | 508 | struct lpfc_scsi_buf *psb; |
509 | struct ulp_bde64 *bpl; | |
510 | IOCB_t *iocb; | |
34b02dcd JS |
511 | dma_addr_t pdma_phys_fcp_cmd; |
512 | dma_addr_t pdma_phys_fcp_rsp; | |
513 | dma_addr_t pdma_phys_bpl; | |
604a3e30 | 514 | uint16_t iotag; |
3772a991 | 515 | int bcnt; |
dea3101e | 516 | |
3772a991 JS |
517 | for (bcnt = 0; bcnt < num_to_alloc; bcnt++) { |
518 | psb = kzalloc(sizeof(struct lpfc_scsi_buf), GFP_KERNEL); | |
519 | if (!psb) | |
520 | break; | |
dea3101e | 521 | |
3772a991 JS |
522 | /* |
523 | * Get memory from the pci pool to map the virt space to pci | |
524 | * bus space for an I/O. The DMA buffer includes space for the | |
525 | * struct fcp_cmnd, struct fcp_rsp and the number of bde's | |
526 | * necessary to support the sg_tablesize. | |
527 | */ | |
528 | psb->data = pci_pool_alloc(phba->lpfc_scsi_dma_buf_pool, | |
529 | GFP_KERNEL, &psb->dma_handle); | |
530 | if (!psb->data) { | |
531 | kfree(psb); | |
532 | break; | |
533 | } | |
534 | ||
535 | /* Initialize virtual ptrs to dma_buf region. */ | |
536 | memset(psb->data, 0, phba->cfg_sg_dma_buf_size); | |
537 | ||
538 | /* Allocate iotag for psb->cur_iocbq. */ | |
539 | iotag = lpfc_sli_next_iotag(phba, &psb->cur_iocbq); | |
540 | if (iotag == 0) { | |
541 | pci_pool_free(phba->lpfc_scsi_dma_buf_pool, | |
542 | psb->data, psb->dma_handle); | |
543 | kfree(psb); | |
544 | break; | |
545 | } | |
546 | psb->cur_iocbq.iocb_flag |= LPFC_IO_FCP; | |
547 | ||
548 | psb->fcp_cmnd = psb->data; | |
549 | psb->fcp_rsp = psb->data + sizeof(struct fcp_cmnd); | |
550 | psb->fcp_bpl = psb->data + sizeof(struct fcp_cmnd) + | |
34b02dcd | 551 | sizeof(struct fcp_rsp); |
dea3101e | 552 | |
3772a991 JS |
553 | /* Initialize local short-hand pointers. */ |
554 | bpl = psb->fcp_bpl; | |
555 | pdma_phys_fcp_cmd = psb->dma_handle; | |
556 | pdma_phys_fcp_rsp = psb->dma_handle + sizeof(struct fcp_cmnd); | |
557 | pdma_phys_bpl = psb->dma_handle + sizeof(struct fcp_cmnd) + | |
558 | sizeof(struct fcp_rsp); | |
559 | ||
560 | /* | |
561 | * The first two bdes are the FCP_CMD and FCP_RSP. The balance | |
562 | * are sg list bdes. Initialize the first two and leave the | |
563 | * rest for queuecommand. | |
564 | */ | |
565 | bpl[0].addrHigh = le32_to_cpu(putPaddrHigh(pdma_phys_fcp_cmd)); | |
566 | bpl[0].addrLow = le32_to_cpu(putPaddrLow(pdma_phys_fcp_cmd)); | |
567 | bpl[0].tus.f.bdeSize = sizeof(struct fcp_cmnd); | |
568 | bpl[0].tus.f.bdeFlags = BUFF_TYPE_BDE_64; | |
569 | bpl[0].tus.w = le32_to_cpu(bpl[0].tus.w); | |
570 | ||
571 | /* Setup the physical region for the FCP RSP */ | |
572 | bpl[1].addrHigh = le32_to_cpu(putPaddrHigh(pdma_phys_fcp_rsp)); | |
573 | bpl[1].addrLow = le32_to_cpu(putPaddrLow(pdma_phys_fcp_rsp)); | |
574 | bpl[1].tus.f.bdeSize = sizeof(struct fcp_rsp); | |
575 | bpl[1].tus.f.bdeFlags = BUFF_TYPE_BDE_64; | |
576 | bpl[1].tus.w = le32_to_cpu(bpl[1].tus.w); | |
577 | ||
578 | /* | |
579 | * Since the IOCB for the FCP I/O is built into this | |
580 | * lpfc_scsi_buf, initialize it with all known data now. | |
581 | */ | |
582 | iocb = &psb->cur_iocbq.iocb; | |
583 | iocb->un.fcpi64.bdl.ulpIoTag32 = 0; | |
584 | if ((phba->sli_rev == 3) && | |
585 | !(phba->sli3_options & LPFC_SLI3_BG_ENABLED)) { | |
586 | /* fill in immediate fcp command BDE */ | |
587 | iocb->un.fcpi64.bdl.bdeFlags = BUFF_TYPE_BDE_IMMED; | |
588 | iocb->un.fcpi64.bdl.bdeSize = sizeof(struct fcp_cmnd); | |
589 | iocb->un.fcpi64.bdl.addrLow = offsetof(IOCB_t, | |
590 | unsli3.fcp_ext.icd); | |
591 | iocb->un.fcpi64.bdl.addrHigh = 0; | |
592 | iocb->ulpBdeCount = 0; | |
593 | iocb->ulpLe = 0; | |
25985edc | 594 | /* fill in response BDE */ |
3772a991 JS |
595 | iocb->unsli3.fcp_ext.rbde.tus.f.bdeFlags = |
596 | BUFF_TYPE_BDE_64; | |
597 | iocb->unsli3.fcp_ext.rbde.tus.f.bdeSize = | |
598 | sizeof(struct fcp_rsp); | |
599 | iocb->unsli3.fcp_ext.rbde.addrLow = | |
600 | putPaddrLow(pdma_phys_fcp_rsp); | |
601 | iocb->unsli3.fcp_ext.rbde.addrHigh = | |
602 | putPaddrHigh(pdma_phys_fcp_rsp); | |
603 | } else { | |
604 | iocb->un.fcpi64.bdl.bdeFlags = BUFF_TYPE_BLP_64; | |
605 | iocb->un.fcpi64.bdl.bdeSize = | |
606 | (2 * sizeof(struct ulp_bde64)); | |
607 | iocb->un.fcpi64.bdl.addrLow = | |
608 | putPaddrLow(pdma_phys_bpl); | |
609 | iocb->un.fcpi64.bdl.addrHigh = | |
610 | putPaddrHigh(pdma_phys_bpl); | |
611 | iocb->ulpBdeCount = 1; | |
612 | iocb->ulpLe = 1; | |
613 | } | |
614 | iocb->ulpClass = CLASS3; | |
615 | psb->status = IOSTAT_SUCCESS; | |
da0436e9 | 616 | /* Put it back into the SCSI buffer list */ |
eee8877e | 617 | psb->cur_iocbq.context1 = psb; |
1c6f4ef5 | 618 | lpfc_release_scsi_buf_s3(phba, psb); |
dea3101e | 619 | |
34b02dcd | 620 | } |
dea3101e | 621 | |
3772a991 | 622 | return bcnt; |
dea3101e | 623 | } |
624 | ||
1151e3ec JS |
625 | /** |
626 | * lpfc_sli4_vport_delete_fcp_xri_aborted -Remove all ndlp references for vport | |
627 | * @vport: pointer to lpfc vport data structure. | |
628 | * | |
629 | * This routine is invoked by the vport cleanup for deletions and the cleanup | |
630 | * for an ndlp on removal. | |
631 | **/ | |
632 | void | |
633 | lpfc_sli4_vport_delete_fcp_xri_aborted(struct lpfc_vport *vport) | |
634 | { | |
635 | struct lpfc_hba *phba = vport->phba; | |
636 | struct lpfc_scsi_buf *psb, *next_psb; | |
637 | unsigned long iflag = 0; | |
638 | ||
639 | spin_lock_irqsave(&phba->hbalock, iflag); | |
640 | spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock); | |
641 | list_for_each_entry_safe(psb, next_psb, | |
642 | &phba->sli4_hba.lpfc_abts_scsi_buf_list, list) { | |
643 | if (psb->rdata && psb->rdata->pnode | |
644 | && psb->rdata->pnode->vport == vport) | |
645 | psb->rdata = NULL; | |
646 | } | |
647 | spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock); | |
648 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
649 | } | |
650 | ||
da0436e9 JS |
651 | /** |
652 | * lpfc_sli4_fcp_xri_aborted - Fast-path process of fcp xri abort | |
653 | * @phba: pointer to lpfc hba data structure. | |
654 | * @axri: pointer to the fcp xri abort wcqe structure. | |
655 | * | |
656 | * This routine is invoked by the worker thread to process a SLI4 fast-path | |
657 | * FCP aborted xri. | |
658 | **/ | |
659 | void | |
660 | lpfc_sli4_fcp_xri_aborted(struct lpfc_hba *phba, | |
661 | struct sli4_wcqe_xri_aborted *axri) | |
662 | { | |
663 | uint16_t xri = bf_get(lpfc_wcqe_xa_xri, axri); | |
19ca7609 | 664 | uint16_t rxid = bf_get(lpfc_wcqe_xa_remote_xid, axri); |
da0436e9 JS |
665 | struct lpfc_scsi_buf *psb, *next_psb; |
666 | unsigned long iflag = 0; | |
0f65ff68 JS |
667 | struct lpfc_iocbq *iocbq; |
668 | int i; | |
19ca7609 JS |
669 | struct lpfc_nodelist *ndlp; |
670 | int rrq_empty = 0; | |
589a52d6 | 671 | struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING]; |
da0436e9 | 672 | |
0f65ff68 JS |
673 | spin_lock_irqsave(&phba->hbalock, iflag); |
674 | spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock); | |
da0436e9 JS |
675 | list_for_each_entry_safe(psb, next_psb, |
676 | &phba->sli4_hba.lpfc_abts_scsi_buf_list, list) { | |
677 | if (psb->cur_iocbq.sli4_xritag == xri) { | |
678 | list_del(&psb->list); | |
341af102 | 679 | psb->exch_busy = 0; |
da0436e9 | 680 | psb->status = IOSTAT_SUCCESS; |
0f65ff68 JS |
681 | spin_unlock( |
682 | &phba->sli4_hba.abts_scsi_buf_list_lock); | |
1151e3ec JS |
683 | if (psb->rdata && psb->rdata->pnode) |
684 | ndlp = psb->rdata->pnode; | |
685 | else | |
686 | ndlp = NULL; | |
687 | ||
19ca7609 | 688 | rrq_empty = list_empty(&phba->active_rrq_list); |
0f65ff68 | 689 | spin_unlock_irqrestore(&phba->hbalock, iflag); |
cb69f7de | 690 | if (ndlp) { |
19ca7609 | 691 | lpfc_set_rrq_active(phba, ndlp, xri, rxid, 1); |
cb69f7de JS |
692 | lpfc_sli4_abts_err_handler(phba, ndlp, axri); |
693 | } | |
da0436e9 | 694 | lpfc_release_scsi_buf_s4(phba, psb); |
19ca7609 JS |
695 | if (rrq_empty) |
696 | lpfc_worker_wake_up(phba); | |
da0436e9 JS |
697 | return; |
698 | } | |
699 | } | |
0f65ff68 JS |
700 | spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock); |
701 | for (i = 1; i <= phba->sli.last_iotag; i++) { | |
702 | iocbq = phba->sli.iocbq_lookup[i]; | |
703 | ||
704 | if (!(iocbq->iocb_flag & LPFC_IO_FCP) || | |
705 | (iocbq->iocb_flag & LPFC_IO_LIBDFC)) | |
706 | continue; | |
707 | if (iocbq->sli4_xritag != xri) | |
708 | continue; | |
709 | psb = container_of(iocbq, struct lpfc_scsi_buf, cur_iocbq); | |
710 | psb->exch_busy = 0; | |
711 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
589a52d6 JS |
712 | if (pring->txq_cnt) |
713 | lpfc_worker_wake_up(phba); | |
0f65ff68 JS |
714 | return; |
715 | ||
716 | } | |
717 | spin_unlock_irqrestore(&phba->hbalock, iflag); | |
da0436e9 JS |
718 | } |
719 | ||
720 | /** | |
8a9d2e80 | 721 | * lpfc_sli4_post_scsi_sgl_list - Psot blocks of scsi buffer sgls from a list |
da0436e9 | 722 | * @phba: pointer to lpfc hba data structure. |
8a9d2e80 | 723 | * @post_sblist: pointer to the scsi buffer list. |
da0436e9 | 724 | * |
8a9d2e80 JS |
725 | * This routine walks a list of scsi buffers that was passed in. It attempts |
726 | * to construct blocks of scsi buffer sgls which contains contiguous xris and | |
727 | * uses the non-embedded SGL block post mailbox commands to post to the port. | |
728 | * For single SCSI buffer sgl with non-contiguous xri, if any, it shall use | |
729 | * embedded SGL post mailbox command for posting. The @post_sblist passed in | |
730 | * must be local list, thus no lock is needed when manipulate the list. | |
da0436e9 | 731 | * |
8a9d2e80 | 732 | * Returns: 0 = failure, non-zero number of successfully posted buffers. |
da0436e9 JS |
733 | **/ |
734 | int | |
8a9d2e80 JS |
735 | lpfc_sli4_post_scsi_sgl_list(struct lpfc_hba *phba, |
736 | struct list_head *post_sblist, int sb_count) | |
da0436e9 | 737 | { |
8a9d2e80 JS |
738 | struct lpfc_scsi_buf *psb, *psb_next; |
739 | int status; | |
740 | int post_cnt = 0, block_cnt = 0, num_posting = 0, num_posted = 0; | |
741 | dma_addr_t pdma_phys_bpl1; | |
742 | int last_xritag = NO_XRI; | |
743 | LIST_HEAD(prep_sblist); | |
744 | LIST_HEAD(blck_sblist); | |
745 | LIST_HEAD(scsi_sblist); | |
746 | ||
747 | /* sanity check */ | |
748 | if (sb_count <= 0) | |
749 | return -EINVAL; | |
750 | ||
751 | list_for_each_entry_safe(psb, psb_next, post_sblist, list) { | |
752 | list_del_init(&psb->list); | |
753 | block_cnt++; | |
754 | if ((last_xritag != NO_XRI) && | |
755 | (psb->cur_iocbq.sli4_xritag != last_xritag + 1)) { | |
756 | /* a hole in xri block, form a sgl posting block */ | |
757 | list_splice_init(&prep_sblist, &blck_sblist); | |
758 | post_cnt = block_cnt - 1; | |
759 | /* prepare list for next posting block */ | |
760 | list_add_tail(&psb->list, &prep_sblist); | |
761 | block_cnt = 1; | |
762 | } else { | |
763 | /* prepare list for next posting block */ | |
764 | list_add_tail(&psb->list, &prep_sblist); | |
765 | /* enough sgls for non-embed sgl mbox command */ | |
766 | if (block_cnt == LPFC_NEMBED_MBOX_SGL_CNT) { | |
767 | list_splice_init(&prep_sblist, &blck_sblist); | |
768 | post_cnt = block_cnt; | |
769 | block_cnt = 0; | |
da0436e9 | 770 | } |
8a9d2e80 JS |
771 | } |
772 | num_posting++; | |
773 | last_xritag = psb->cur_iocbq.sli4_xritag; | |
da0436e9 | 774 | |
8a9d2e80 JS |
775 | /* end of repost sgl list condition for SCSI buffers */ |
776 | if (num_posting == sb_count) { | |
777 | if (post_cnt == 0) { | |
778 | /* last sgl posting block */ | |
779 | list_splice_init(&prep_sblist, &blck_sblist); | |
780 | post_cnt = block_cnt; | |
781 | } else if (block_cnt == 1) { | |
782 | /* last single sgl with non-contiguous xri */ | |
783 | if (phba->cfg_sg_dma_buf_size > SGL_PAGE_SIZE) | |
784 | pdma_phys_bpl1 = psb->dma_phys_bpl + | |
785 | SGL_PAGE_SIZE; | |
786 | else | |
787 | pdma_phys_bpl1 = 0; | |
788 | status = lpfc_sli4_post_sgl(phba, | |
789 | psb->dma_phys_bpl, | |
790 | pdma_phys_bpl1, | |
791 | psb->cur_iocbq.sli4_xritag); | |
792 | if (status) { | |
793 | /* failure, put on abort scsi list */ | |
794 | psb->exch_busy = 1; | |
795 | } else { | |
796 | /* success, put on SCSI buffer list */ | |
797 | psb->exch_busy = 0; | |
798 | psb->status = IOSTAT_SUCCESS; | |
799 | num_posted++; | |
800 | } | |
801 | /* success, put on SCSI buffer sgl list */ | |
802 | list_add_tail(&psb->list, &scsi_sblist); | |
803 | } | |
804 | } | |
da0436e9 | 805 | |
8a9d2e80 JS |
806 | /* continue until a nembed page worth of sgls */ |
807 | if (post_cnt == 0) | |
da0436e9 | 808 | continue; |
8a9d2e80 JS |
809 | |
810 | /* post block of SCSI buffer list sgls */ | |
811 | status = lpfc_sli4_post_scsi_sgl_block(phba, &blck_sblist, | |
812 | post_cnt); | |
813 | ||
814 | /* don't reset xirtag due to hole in xri block */ | |
815 | if (block_cnt == 0) | |
816 | last_xritag = NO_XRI; | |
817 | ||
818 | /* reset SCSI buffer post count for next round of posting */ | |
819 | post_cnt = 0; | |
820 | ||
821 | /* put posted SCSI buffer-sgl posted on SCSI buffer sgl list */ | |
822 | while (!list_empty(&blck_sblist)) { | |
823 | list_remove_head(&blck_sblist, psb, | |
824 | struct lpfc_scsi_buf, list); | |
da0436e9 | 825 | if (status) { |
8a9d2e80 | 826 | /* failure, put on abort scsi list */ |
341af102 | 827 | psb->exch_busy = 1; |
341af102 | 828 | } else { |
8a9d2e80 | 829 | /* success, put on SCSI buffer list */ |
341af102 | 830 | psb->exch_busy = 0; |
da0436e9 | 831 | psb->status = IOSTAT_SUCCESS; |
8a9d2e80 | 832 | num_posted++; |
341af102 | 833 | } |
8a9d2e80 | 834 | list_add_tail(&psb->list, &scsi_sblist); |
da0436e9 JS |
835 | } |
836 | } | |
8a9d2e80 JS |
837 | /* Push SCSI buffers with sgl posted to the availble list */ |
838 | while (!list_empty(&scsi_sblist)) { | |
839 | list_remove_head(&scsi_sblist, psb, | |
840 | struct lpfc_scsi_buf, list); | |
841 | lpfc_release_scsi_buf_s4(phba, psb); | |
842 | } | |
843 | return num_posted; | |
844 | } | |
845 | ||
846 | /** | |
847 | * lpfc_sli4_repost_scsi_sgl_list - Repsot all the allocated scsi buffer sgls | |
848 | * @phba: pointer to lpfc hba data structure. | |
849 | * | |
850 | * This routine walks the list of scsi buffers that have been allocated and | |
851 | * repost them to the port by using SGL block post. This is needed after a | |
852 | * pci_function_reset/warm_start or start. The lpfc_hba_down_post_s4 routine | |
853 | * is responsible for moving all scsi buffers on the lpfc_abts_scsi_sgl_list | |
854 | * to the lpfc_scsi_buf_list. If the repost fails, reject all scsi buffers. | |
855 | * | |
856 | * Returns: 0 = success, non-zero failure. | |
857 | **/ | |
858 | int | |
859 | lpfc_sli4_repost_scsi_sgl_list(struct lpfc_hba *phba) | |
860 | { | |
861 | LIST_HEAD(post_sblist); | |
862 | int num_posted, rc = 0; | |
863 | ||
864 | /* get all SCSI buffers need to repost to a local list */ | |
865 | spin_lock(&phba->scsi_buf_list_lock); | |
866 | list_splice_init(&phba->lpfc_scsi_buf_list, &post_sblist); | |
867 | spin_unlock(&phba->scsi_buf_list_lock); | |
868 | ||
869 | /* post the list of scsi buffer sgls to port if available */ | |
870 | if (!list_empty(&post_sblist)) { | |
871 | num_posted = lpfc_sli4_post_scsi_sgl_list(phba, &post_sblist, | |
872 | phba->sli4_hba.scsi_xri_cnt); | |
873 | /* failed to post any scsi buffer, return error */ | |
874 | if (num_posted == 0) | |
875 | rc = -EIO; | |
876 | } | |
da0436e9 JS |
877 | return rc; |
878 | } | |
879 | ||
880 | /** | |
881 | * lpfc_new_scsi_buf_s4 - Scsi buffer allocator for HBA with SLI4 IF spec | |
882 | * @vport: The virtual port for which this call being executed. | |
883 | * @num_to_allocate: The requested number of buffers to allocate. | |
884 | * | |
8a9d2e80 | 885 | * This routine allocates scsi buffers for device with SLI-4 interface spec, |
da0436e9 | 886 | * the scsi buffer contains all the necessary information needed to initiate |
8a9d2e80 JS |
887 | * a SCSI I/O. After allocating up to @num_to_allocate SCSI buffers and put |
888 | * them on a list, it post them to the port by using SGL block post. | |
da0436e9 JS |
889 | * |
890 | * Return codes: | |
8a9d2e80 | 891 | * int - number of scsi buffers that were allocated and posted. |
da0436e9 JS |
892 | * 0 = failure, less than num_to_alloc is a partial failure. |
893 | **/ | |
894 | static int | |
895 | lpfc_new_scsi_buf_s4(struct lpfc_vport *vport, int num_to_alloc) | |
896 | { | |
897 | struct lpfc_hba *phba = vport->phba; | |
898 | struct lpfc_scsi_buf *psb; | |
899 | struct sli4_sge *sgl; | |
900 | IOCB_t *iocb; | |
901 | dma_addr_t pdma_phys_fcp_cmd; | |
902 | dma_addr_t pdma_phys_fcp_rsp; | |
903 | dma_addr_t pdma_phys_bpl, pdma_phys_bpl1; | |
8a9d2e80 JS |
904 | uint16_t iotag, lxri = 0; |
905 | int bcnt, num_posted; | |
906 | LIST_HEAD(prep_sblist); | |
907 | LIST_HEAD(post_sblist); | |
908 | LIST_HEAD(scsi_sblist); | |
da0436e9 JS |
909 | |
910 | for (bcnt = 0; bcnt < num_to_alloc; bcnt++) { | |
911 | psb = kzalloc(sizeof(struct lpfc_scsi_buf), GFP_KERNEL); | |
912 | if (!psb) | |
913 | break; | |
da0436e9 | 914 | /* |
8a9d2e80 JS |
915 | * Get memory from the pci pool to map the virt space to |
916 | * pci bus space for an I/O. The DMA buffer includes space | |
917 | * for the struct fcp_cmnd, struct fcp_rsp and the number | |
918 | * of bde's necessary to support the sg_tablesize. | |
da0436e9 JS |
919 | */ |
920 | psb->data = pci_pool_alloc(phba->lpfc_scsi_dma_buf_pool, | |
921 | GFP_KERNEL, &psb->dma_handle); | |
922 | if (!psb->data) { | |
923 | kfree(psb); | |
924 | break; | |
925 | } | |
da0436e9 JS |
926 | memset(psb->data, 0, phba->cfg_sg_dma_buf_size); |
927 | ||
928 | /* Allocate iotag for psb->cur_iocbq. */ | |
929 | iotag = lpfc_sli_next_iotag(phba, &psb->cur_iocbq); | |
930 | if (iotag == 0) { | |
b92938b4 JS |
931 | pci_pool_free(phba->lpfc_scsi_dma_buf_pool, |
932 | psb->data, psb->dma_handle); | |
da0436e9 JS |
933 | kfree(psb); |
934 | break; | |
935 | } | |
936 | ||
6d368e53 JS |
937 | lxri = lpfc_sli4_next_xritag(phba); |
938 | if (lxri == NO_XRI) { | |
da0436e9 JS |
939 | pci_pool_free(phba->lpfc_scsi_dma_buf_pool, |
940 | psb->data, psb->dma_handle); | |
941 | kfree(psb); | |
942 | break; | |
943 | } | |
6d368e53 JS |
944 | psb->cur_iocbq.sli4_lxritag = lxri; |
945 | psb->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri]; | |
da0436e9 | 946 | psb->cur_iocbq.iocb_flag |= LPFC_IO_FCP; |
da0436e9 JS |
947 | psb->fcp_bpl = psb->data; |
948 | psb->fcp_cmnd = (psb->data + phba->cfg_sg_dma_buf_size) | |
949 | - (sizeof(struct fcp_cmnd) + sizeof(struct fcp_rsp)); | |
950 | psb->fcp_rsp = (struct fcp_rsp *)((uint8_t *)psb->fcp_cmnd + | |
951 | sizeof(struct fcp_cmnd)); | |
952 | ||
953 | /* Initialize local short-hand pointers. */ | |
954 | sgl = (struct sli4_sge *)psb->fcp_bpl; | |
955 | pdma_phys_bpl = psb->dma_handle; | |
956 | pdma_phys_fcp_cmd = | |
957 | (psb->dma_handle + phba->cfg_sg_dma_buf_size) | |
958 | - (sizeof(struct fcp_cmnd) + sizeof(struct fcp_rsp)); | |
959 | pdma_phys_fcp_rsp = pdma_phys_fcp_cmd + sizeof(struct fcp_cmnd); | |
960 | ||
961 | /* | |
8a9d2e80 JS |
962 | * The first two bdes are the FCP_CMD and FCP_RSP. |
963 | * The balance are sg list bdes. Initialize the | |
964 | * first two and leave the rest for queuecommand. | |
da0436e9 JS |
965 | */ |
966 | sgl->addr_hi = cpu_to_le32(putPaddrHigh(pdma_phys_fcp_cmd)); | |
967 | sgl->addr_lo = cpu_to_le32(putPaddrLow(pdma_phys_fcp_cmd)); | |
0558056c | 968 | sgl->word2 = le32_to_cpu(sgl->word2); |
da0436e9 JS |
969 | bf_set(lpfc_sli4_sge_last, sgl, 0); |
970 | sgl->word2 = cpu_to_le32(sgl->word2); | |
28baac74 | 971 | sgl->sge_len = cpu_to_le32(sizeof(struct fcp_cmnd)); |
da0436e9 JS |
972 | sgl++; |
973 | ||
974 | /* Setup the physical region for the FCP RSP */ | |
975 | sgl->addr_hi = cpu_to_le32(putPaddrHigh(pdma_phys_fcp_rsp)); | |
976 | sgl->addr_lo = cpu_to_le32(putPaddrLow(pdma_phys_fcp_rsp)); | |
0558056c | 977 | sgl->word2 = le32_to_cpu(sgl->word2); |
da0436e9 JS |
978 | bf_set(lpfc_sli4_sge_last, sgl, 1); |
979 | sgl->word2 = cpu_to_le32(sgl->word2); | |
28baac74 | 980 | sgl->sge_len = cpu_to_le32(sizeof(struct fcp_rsp)); |
da0436e9 JS |
981 | |
982 | /* | |
983 | * Since the IOCB for the FCP I/O is built into this | |
984 | * lpfc_scsi_buf, initialize it with all known data now. | |
985 | */ | |
986 | iocb = &psb->cur_iocbq.iocb; | |
987 | iocb->un.fcpi64.bdl.ulpIoTag32 = 0; | |
988 | iocb->un.fcpi64.bdl.bdeFlags = BUFF_TYPE_BDE_64; | |
989 | /* setting the BLP size to 2 * sizeof BDE may not be correct. | |
990 | * We are setting the bpl to point to out sgl. An sgl's | |
991 | * entries are 16 bytes, a bpl entries are 12 bytes. | |
992 | */ | |
993 | iocb->un.fcpi64.bdl.bdeSize = sizeof(struct fcp_cmnd); | |
994 | iocb->un.fcpi64.bdl.addrLow = putPaddrLow(pdma_phys_fcp_cmd); | |
995 | iocb->un.fcpi64.bdl.addrHigh = putPaddrHigh(pdma_phys_fcp_cmd); | |
996 | iocb->ulpBdeCount = 1; | |
997 | iocb->ulpLe = 1; | |
998 | iocb->ulpClass = CLASS3; | |
8a9d2e80 | 999 | psb->cur_iocbq.context1 = psb; |
da0436e9 JS |
1000 | if (phba->cfg_sg_dma_buf_size > SGL_PAGE_SIZE) |
1001 | pdma_phys_bpl1 = pdma_phys_bpl + SGL_PAGE_SIZE; | |
1002 | else | |
1003 | pdma_phys_bpl1 = 0; | |
1004 | psb->dma_phys_bpl = pdma_phys_bpl; | |
da0436e9 | 1005 | |
8a9d2e80 JS |
1006 | /* add the scsi buffer to a post list */ |
1007 | list_add_tail(&psb->list, &post_sblist); | |
1008 | spin_lock_irq(&phba->scsi_buf_list_lock); | |
1009 | phba->sli4_hba.scsi_xri_cnt++; | |
1010 | spin_unlock_irq(&phba->scsi_buf_list_lock); | |
1011 | } | |
1012 | lpfc_printf_log(phba, KERN_INFO, LOG_BG, | |
1013 | "3021 Allocate %d out of %d requested new SCSI " | |
1014 | "buffers\n", bcnt, num_to_alloc); | |
1015 | ||
1016 | /* post the list of scsi buffer sgls to port if available */ | |
1017 | if (!list_empty(&post_sblist)) | |
1018 | num_posted = lpfc_sli4_post_scsi_sgl_list(phba, | |
1019 | &post_sblist, bcnt); | |
1020 | else | |
1021 | num_posted = 0; | |
1022 | ||
1023 | return num_posted; | |
da0436e9 JS |
1024 | } |
1025 | ||
9bad7671 | 1026 | /** |
3772a991 JS |
1027 | * lpfc_new_scsi_buf - Wrapper funciton for scsi buffer allocator |
1028 | * @vport: The virtual port for which this call being executed. | |
1029 | * @num_to_allocate: The requested number of buffers to allocate. | |
1030 | * | |
1031 | * This routine wraps the actual SCSI buffer allocator function pointer from | |
1032 | * the lpfc_hba struct. | |
1033 | * | |
1034 | * Return codes: | |
1035 | * int - number of scsi buffers that were allocated. | |
1036 | * 0 = failure, less than num_to_alloc is a partial failure. | |
1037 | **/ | |
1038 | static inline int | |
1039 | lpfc_new_scsi_buf(struct lpfc_vport *vport, int num_to_alloc) | |
1040 | { | |
1041 | return vport->phba->lpfc_new_scsi_buf(vport, num_to_alloc); | |
1042 | } | |
1043 | ||
1044 | /** | |
19ca7609 | 1045 | * lpfc_get_scsi_buf_s3 - Get a scsi buffer from lpfc_scsi_buf_list of the HBA |
3772a991 | 1046 | * @phba: The HBA for which this call is being executed. |
9bad7671 JS |
1047 | * |
1048 | * This routine removes a scsi buffer from head of @phba lpfc_scsi_buf_list list | |
1049 | * and returns to caller. | |
1050 | * | |
1051 | * Return codes: | |
1052 | * NULL - Error | |
1053 | * Pointer to lpfc_scsi_buf - Success | |
1054 | **/ | |
455c53ec | 1055 | static struct lpfc_scsi_buf* |
19ca7609 | 1056 | lpfc_get_scsi_buf_s3(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp) |
dea3101e | 1057 | { |
0bd4ca25 JSEC |
1058 | struct lpfc_scsi_buf * lpfc_cmd = NULL; |
1059 | struct list_head *scsi_buf_list = &phba->lpfc_scsi_buf_list; | |
875fbdfe | 1060 | unsigned long iflag = 0; |
0bd4ca25 | 1061 | |
875fbdfe | 1062 | spin_lock_irqsave(&phba->scsi_buf_list_lock, iflag); |
0bd4ca25 | 1063 | list_remove_head(scsi_buf_list, lpfc_cmd, struct lpfc_scsi_buf, list); |
1dcb58e5 JS |
1064 | if (lpfc_cmd) { |
1065 | lpfc_cmd->seg_cnt = 0; | |
1066 | lpfc_cmd->nonsg_phys = 0; | |
e2a0a9d6 | 1067 | lpfc_cmd->prot_seg_cnt = 0; |
1dcb58e5 | 1068 | } |
875fbdfe | 1069 | spin_unlock_irqrestore(&phba->scsi_buf_list_lock, iflag); |
0bd4ca25 JSEC |
1070 | return lpfc_cmd; |
1071 | } | |
19ca7609 JS |
1072 | /** |
1073 | * lpfc_get_scsi_buf_s4 - Get a scsi buffer from lpfc_scsi_buf_list of the HBA | |
1074 | * @phba: The HBA for which this call is being executed. | |
1075 | * | |
1076 | * This routine removes a scsi buffer from head of @phba lpfc_scsi_buf_list list | |
1077 | * and returns to caller. | |
1078 | * | |
1079 | * Return codes: | |
1080 | * NULL - Error | |
1081 | * Pointer to lpfc_scsi_buf - Success | |
1082 | **/ | |
1083 | static struct lpfc_scsi_buf* | |
1084 | lpfc_get_scsi_buf_s4(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp) | |
1085 | { | |
1151e3ec | 1086 | struct lpfc_scsi_buf *lpfc_cmd ; |
19ca7609 JS |
1087 | unsigned long iflag = 0; |
1088 | int found = 0; | |
1089 | ||
1090 | spin_lock_irqsave(&phba->scsi_buf_list_lock, iflag); | |
1151e3ec JS |
1091 | list_for_each_entry(lpfc_cmd, &phba->lpfc_scsi_buf_list, |
1092 | list) { | |
19ca7609 | 1093 | if (lpfc_test_rrq_active(phba, ndlp, |
1151e3ec JS |
1094 | lpfc_cmd->cur_iocbq.sli4_xritag)) |
1095 | continue; | |
1096 | list_del(&lpfc_cmd->list); | |
19ca7609 JS |
1097 | found = 1; |
1098 | lpfc_cmd->seg_cnt = 0; | |
1099 | lpfc_cmd->nonsg_phys = 0; | |
1100 | lpfc_cmd->prot_seg_cnt = 0; | |
1151e3ec | 1101 | break; |
19ca7609 | 1102 | } |
1151e3ec JS |
1103 | spin_unlock_irqrestore(&phba->scsi_buf_list_lock, |
1104 | iflag); | |
1105 | if (!found) | |
1106 | return NULL; | |
1107 | else | |
1108 | return lpfc_cmd; | |
19ca7609 JS |
1109 | } |
1110 | /** | |
1111 | * lpfc_get_scsi_buf - Get a scsi buffer from lpfc_scsi_buf_list of the HBA | |
1112 | * @phba: The HBA for which this call is being executed. | |
1113 | * | |
1114 | * This routine removes a scsi buffer from head of @phba lpfc_scsi_buf_list list | |
1115 | * and returns to caller. | |
1116 | * | |
1117 | * Return codes: | |
1118 | * NULL - Error | |
1119 | * Pointer to lpfc_scsi_buf - Success | |
1120 | **/ | |
1121 | static struct lpfc_scsi_buf* | |
1122 | lpfc_get_scsi_buf(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp) | |
1123 | { | |
1124 | return phba->lpfc_get_scsi_buf(phba, ndlp); | |
1125 | } | |
dea3101e | 1126 | |
9bad7671 | 1127 | /** |
3772a991 | 1128 | * lpfc_release_scsi_buf - Return a scsi buffer back to hba scsi buf list |
9bad7671 JS |
1129 | * @phba: The Hba for which this call is being executed. |
1130 | * @psb: The scsi buffer which is being released. | |
1131 | * | |
1132 | * This routine releases @psb scsi buffer by adding it to tail of @phba | |
1133 | * lpfc_scsi_buf_list list. | |
1134 | **/ | |
0bd4ca25 | 1135 | static void |
3772a991 | 1136 | lpfc_release_scsi_buf_s3(struct lpfc_hba *phba, struct lpfc_scsi_buf *psb) |
0bd4ca25 | 1137 | { |
875fbdfe | 1138 | unsigned long iflag = 0; |
dea3101e | 1139 | |
875fbdfe | 1140 | spin_lock_irqsave(&phba->scsi_buf_list_lock, iflag); |
0bd4ca25 | 1141 | psb->pCmd = NULL; |
dea3101e | 1142 | list_add_tail(&psb->list, &phba->lpfc_scsi_buf_list); |
875fbdfe | 1143 | spin_unlock_irqrestore(&phba->scsi_buf_list_lock, iflag); |
dea3101e | 1144 | } |
1145 | ||
da0436e9 JS |
1146 | /** |
1147 | * lpfc_release_scsi_buf_s4: Return a scsi buffer back to hba scsi buf list. | |
1148 | * @phba: The Hba for which this call is being executed. | |
1149 | * @psb: The scsi buffer which is being released. | |
1150 | * | |
1151 | * This routine releases @psb scsi buffer by adding it to tail of @phba | |
1152 | * lpfc_scsi_buf_list list. For SLI4 XRI's are tied to the scsi buffer | |
1153 | * and cannot be reused for at least RA_TOV amount of time if it was | |
1154 | * aborted. | |
1155 | **/ | |
1156 | static void | |
1157 | lpfc_release_scsi_buf_s4(struct lpfc_hba *phba, struct lpfc_scsi_buf *psb) | |
1158 | { | |
1159 | unsigned long iflag = 0; | |
1160 | ||
341af102 | 1161 | if (psb->exch_busy) { |
da0436e9 JS |
1162 | spin_lock_irqsave(&phba->sli4_hba.abts_scsi_buf_list_lock, |
1163 | iflag); | |
1164 | psb->pCmd = NULL; | |
1165 | list_add_tail(&psb->list, | |
1166 | &phba->sli4_hba.lpfc_abts_scsi_buf_list); | |
1167 | spin_unlock_irqrestore(&phba->sli4_hba.abts_scsi_buf_list_lock, | |
1168 | iflag); | |
1169 | } else { | |
1170 | ||
1171 | spin_lock_irqsave(&phba->scsi_buf_list_lock, iflag); | |
1172 | psb->pCmd = NULL; | |
1173 | list_add_tail(&psb->list, &phba->lpfc_scsi_buf_list); | |
1174 | spin_unlock_irqrestore(&phba->scsi_buf_list_lock, iflag); | |
1175 | } | |
1176 | } | |
1177 | ||
9bad7671 | 1178 | /** |
3772a991 JS |
1179 | * lpfc_release_scsi_buf: Return a scsi buffer back to hba scsi buf list. |
1180 | * @phba: The Hba for which this call is being executed. | |
1181 | * @psb: The scsi buffer which is being released. | |
1182 | * | |
1183 | * This routine releases @psb scsi buffer by adding it to tail of @phba | |
1184 | * lpfc_scsi_buf_list list. | |
1185 | **/ | |
1186 | static void | |
1187 | lpfc_release_scsi_buf(struct lpfc_hba *phba, struct lpfc_scsi_buf *psb) | |
1188 | { | |
1189 | ||
1190 | phba->lpfc_release_scsi_buf(phba, psb); | |
1191 | } | |
1192 | ||
1193 | /** | |
1194 | * lpfc_scsi_prep_dma_buf_s3 - DMA mapping for scsi buffer to SLI3 IF spec | |
9bad7671 JS |
1195 | * @phba: The Hba for which this call is being executed. |
1196 | * @lpfc_cmd: The scsi buffer which is going to be mapped. | |
1197 | * | |
1198 | * This routine does the pci dma mapping for scatter-gather list of scsi cmnd | |
3772a991 JS |
1199 | * field of @lpfc_cmd for device with SLI-3 interface spec. This routine scans |
1200 | * through sg elements and format the bdea. This routine also initializes all | |
1201 | * IOCB fields which are dependent on scsi command request buffer. | |
9bad7671 JS |
1202 | * |
1203 | * Return codes: | |
1204 | * 1 - Error | |
1205 | * 0 - Success | |
1206 | **/ | |
dea3101e | 1207 | static int |
3772a991 | 1208 | lpfc_scsi_prep_dma_buf_s3(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd) |
dea3101e | 1209 | { |
1210 | struct scsi_cmnd *scsi_cmnd = lpfc_cmd->pCmd; | |
1211 | struct scatterlist *sgel = NULL; | |
1212 | struct fcp_cmnd *fcp_cmnd = lpfc_cmd->fcp_cmnd; | |
1213 | struct ulp_bde64 *bpl = lpfc_cmd->fcp_bpl; | |
0f65ff68 | 1214 | struct lpfc_iocbq *iocbq = &lpfc_cmd->cur_iocbq; |
dea3101e | 1215 | IOCB_t *iocb_cmd = &lpfc_cmd->cur_iocbq.iocb; |
34b02dcd | 1216 | struct ulp_bde64 *data_bde = iocb_cmd->unsli3.fcp_ext.dbde; |
dea3101e | 1217 | dma_addr_t physaddr; |
34b02dcd | 1218 | uint32_t num_bde = 0; |
a0b4f78f | 1219 | int nseg, datadir = scsi_cmnd->sc_data_direction; |
dea3101e | 1220 | |
1221 | /* | |
1222 | * There are three possibilities here - use scatter-gather segment, use | |
1223 | * the single mapping, or neither. Start the lpfc command prep by | |
1224 | * bumping the bpl beyond the fcp_cmnd and fcp_rsp regions to the first | |
1225 | * data bde entry. | |
1226 | */ | |
1227 | bpl += 2; | |
c59fd9eb | 1228 | if (scsi_sg_count(scsi_cmnd)) { |
dea3101e | 1229 | /* |
1230 | * The driver stores the segment count returned from pci_map_sg | |
1231 | * because this a count of dma-mappings used to map the use_sg | |
1232 | * pages. They are not guaranteed to be the same for those | |
1233 | * architectures that implement an IOMMU. | |
1234 | */ | |
dea3101e | 1235 | |
c59fd9eb FT |
1236 | nseg = dma_map_sg(&phba->pcidev->dev, scsi_sglist(scsi_cmnd), |
1237 | scsi_sg_count(scsi_cmnd), datadir); | |
1238 | if (unlikely(!nseg)) | |
1239 | return 1; | |
1240 | ||
a0b4f78f | 1241 | lpfc_cmd->seg_cnt = nseg; |
dea3101e | 1242 | if (lpfc_cmd->seg_cnt > phba->cfg_sg_seg_cnt) { |
6a9c52cf JS |
1243 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, |
1244 | "9064 BLKGRD: %s: Too many sg segments from " | |
e2a0a9d6 | 1245 | "dma_map_sg. Config %d, seg_cnt %d\n", |
cadbd4a5 | 1246 | __func__, phba->cfg_sg_seg_cnt, |
dea3101e | 1247 | lpfc_cmd->seg_cnt); |
a0b4f78f | 1248 | scsi_dma_unmap(scsi_cmnd); |
dea3101e | 1249 | return 1; |
1250 | } | |
1251 | ||
1252 | /* | |
1253 | * The driver established a maximum scatter-gather segment count | |
1254 | * during probe that limits the number of sg elements in any | |
1255 | * single scsi command. Just run through the seg_cnt and format | |
1256 | * the bde's. | |
34b02dcd JS |
1257 | * When using SLI-3 the driver will try to fit all the BDEs into |
1258 | * the IOCB. If it can't then the BDEs get added to a BPL as it | |
1259 | * does for SLI-2 mode. | |
dea3101e | 1260 | */ |
34b02dcd | 1261 | scsi_for_each_sg(scsi_cmnd, sgel, nseg, num_bde) { |
dea3101e | 1262 | physaddr = sg_dma_address(sgel); |
34b02dcd | 1263 | if (phba->sli_rev == 3 && |
e2a0a9d6 | 1264 | !(phba->sli3_options & LPFC_SLI3_BG_ENABLED) && |
0f65ff68 | 1265 | !(iocbq->iocb_flag & DSS_SECURITY_OP) && |
34b02dcd JS |
1266 | nseg <= LPFC_EXT_DATA_BDE_COUNT) { |
1267 | data_bde->tus.f.bdeFlags = BUFF_TYPE_BDE_64; | |
1268 | data_bde->tus.f.bdeSize = sg_dma_len(sgel); | |
1269 | data_bde->addrLow = putPaddrLow(physaddr); | |
1270 | data_bde->addrHigh = putPaddrHigh(physaddr); | |
1271 | data_bde++; | |
1272 | } else { | |
1273 | bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64; | |
1274 | bpl->tus.f.bdeSize = sg_dma_len(sgel); | |
1275 | bpl->tus.w = le32_to_cpu(bpl->tus.w); | |
1276 | bpl->addrLow = | |
1277 | le32_to_cpu(putPaddrLow(physaddr)); | |
1278 | bpl->addrHigh = | |
1279 | le32_to_cpu(putPaddrHigh(physaddr)); | |
1280 | bpl++; | |
1281 | } | |
dea3101e | 1282 | } |
c59fd9eb | 1283 | } |
dea3101e | 1284 | |
1285 | /* | |
1286 | * Finish initializing those IOCB fields that are dependent on the | |
34b02dcd JS |
1287 | * scsi_cmnd request_buffer. Note that for SLI-2 the bdeSize is |
1288 | * explicitly reinitialized and for SLI-3 the extended bde count is | |
1289 | * explicitly reinitialized since all iocb memory resources are reused. | |
dea3101e | 1290 | */ |
e2a0a9d6 | 1291 | if (phba->sli_rev == 3 && |
0f65ff68 JS |
1292 | !(phba->sli3_options & LPFC_SLI3_BG_ENABLED) && |
1293 | !(iocbq->iocb_flag & DSS_SECURITY_OP)) { | |
34b02dcd JS |
1294 | if (num_bde > LPFC_EXT_DATA_BDE_COUNT) { |
1295 | /* | |
1296 | * The extended IOCB format can only fit 3 BDE or a BPL. | |
1297 | * This I/O has more than 3 BDE so the 1st data bde will | |
1298 | * be a BPL that is filled in here. | |
1299 | */ | |
1300 | physaddr = lpfc_cmd->dma_handle; | |
1301 | data_bde->tus.f.bdeFlags = BUFF_TYPE_BLP_64; | |
1302 | data_bde->tus.f.bdeSize = (num_bde * | |
1303 | sizeof(struct ulp_bde64)); | |
1304 | physaddr += (sizeof(struct fcp_cmnd) + | |
1305 | sizeof(struct fcp_rsp) + | |
1306 | (2 * sizeof(struct ulp_bde64))); | |
1307 | data_bde->addrHigh = putPaddrHigh(physaddr); | |
1308 | data_bde->addrLow = putPaddrLow(physaddr); | |
25985edc | 1309 | /* ebde count includes the response bde and data bpl */ |
34b02dcd JS |
1310 | iocb_cmd->unsli3.fcp_ext.ebde_count = 2; |
1311 | } else { | |
25985edc | 1312 | /* ebde count includes the response bde and data bdes */ |
34b02dcd JS |
1313 | iocb_cmd->unsli3.fcp_ext.ebde_count = (num_bde + 1); |
1314 | } | |
1315 | } else { | |
1316 | iocb_cmd->un.fcpi64.bdl.bdeSize = | |
1317 | ((num_bde + 2) * sizeof(struct ulp_bde64)); | |
0f65ff68 | 1318 | iocb_cmd->unsli3.fcp_ext.ebde_count = (num_bde + 1); |
34b02dcd | 1319 | } |
09372820 | 1320 | fcp_cmnd->fcpDl = cpu_to_be32(scsi_bufflen(scsi_cmnd)); |
e2a0a9d6 JS |
1321 | |
1322 | /* | |
1323 | * Due to difference in data length between DIF/non-DIF paths, | |
1324 | * we need to set word 4 of IOCB here | |
1325 | */ | |
a257bf90 | 1326 | iocb_cmd->un.fcpi.fcpi_parm = scsi_bufflen(scsi_cmnd); |
e2a0a9d6 JS |
1327 | return 0; |
1328 | } | |
1329 | ||
f9bb2da1 JS |
1330 | static inline unsigned |
1331 | lpfc_cmd_blksize(struct scsi_cmnd *sc) | |
1332 | { | |
1333 | return sc->device->sector_size; | |
1334 | } | |
1335 | ||
1336 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS | |
acd6859b | 1337 | |
9a6b09c0 JS |
1338 | /* Return if if error injection is detected by Initiator */ |
1339 | #define BG_ERR_INIT 0x1 | |
1340 | /* Return if if error injection is detected by Target */ | |
1341 | #define BG_ERR_TGT 0x2 | |
1342 | /* Return if if swapping CSUM<-->CRC is required for error injection */ | |
1343 | #define BG_ERR_SWAP 0x10 | |
1344 | /* Return if disabling Guard/Ref/App checking is required for error injection */ | |
1345 | #define BG_ERR_CHECK 0x20 | |
acd6859b JS |
1346 | |
1347 | /** | |
1348 | * lpfc_bg_err_inject - Determine if we should inject an error | |
1349 | * @phba: The Hba for which this call is being executed. | |
f9bb2da1 JS |
1350 | * @sc: The SCSI command to examine |
1351 | * @reftag: (out) BlockGuard reference tag for transmitted data | |
1352 | * @apptag: (out) BlockGuard application tag for transmitted data | |
1353 | * @new_guard (in) Value to replace CRC with if needed | |
1354 | * | |
9a6b09c0 | 1355 | * Returns BG_ERR_* bit mask or 0 if request ignored |
acd6859b | 1356 | **/ |
f9bb2da1 JS |
1357 | static int |
1358 | lpfc_bg_err_inject(struct lpfc_hba *phba, struct scsi_cmnd *sc, | |
1359 | uint32_t *reftag, uint16_t *apptag, uint32_t new_guard) | |
1360 | { | |
1361 | struct scatterlist *sgpe; /* s/g prot entry */ | |
1362 | struct scatterlist *sgde; /* s/g data entry */ | |
9a6b09c0 | 1363 | struct lpfc_scsi_buf *lpfc_cmd = NULL; |
acd6859b | 1364 | struct scsi_dif_tuple *src = NULL; |
4ac9b226 JS |
1365 | struct lpfc_nodelist *ndlp; |
1366 | struct lpfc_rport_data *rdata; | |
f9bb2da1 JS |
1367 | uint32_t op = scsi_get_prot_op(sc); |
1368 | uint32_t blksize; | |
1369 | uint32_t numblks; | |
1370 | sector_t lba; | |
1371 | int rc = 0; | |
acd6859b | 1372 | int blockoff = 0; |
f9bb2da1 JS |
1373 | |
1374 | if (op == SCSI_PROT_NORMAL) | |
1375 | return 0; | |
1376 | ||
acd6859b JS |
1377 | sgpe = scsi_prot_sglist(sc); |
1378 | sgde = scsi_sglist(sc); | |
f9bb2da1 | 1379 | lba = scsi_get_lba(sc); |
4ac9b226 JS |
1380 | |
1381 | /* First check if we need to match the LBA */ | |
f9bb2da1 JS |
1382 | if (phba->lpfc_injerr_lba != LPFC_INJERR_LBA_OFF) { |
1383 | blksize = lpfc_cmd_blksize(sc); | |
1384 | numblks = (scsi_bufflen(sc) + blksize - 1) / blksize; | |
1385 | ||
1386 | /* Make sure we have the right LBA if one is specified */ | |
1387 | if ((phba->lpfc_injerr_lba < lba) || | |
1388 | (phba->lpfc_injerr_lba >= (lba + numblks))) | |
1389 | return 0; | |
acd6859b JS |
1390 | if (sgpe) { |
1391 | blockoff = phba->lpfc_injerr_lba - lba; | |
1392 | numblks = sg_dma_len(sgpe) / | |
1393 | sizeof(struct scsi_dif_tuple); | |
1394 | if (numblks < blockoff) | |
1395 | blockoff = numblks; | |
acd6859b | 1396 | } |
f9bb2da1 JS |
1397 | } |
1398 | ||
4ac9b226 JS |
1399 | /* Next check if we need to match the remote NPortID or WWPN */ |
1400 | rdata = sc->device->hostdata; | |
1401 | if (rdata && rdata->pnode) { | |
1402 | ndlp = rdata->pnode; | |
1403 | ||
1404 | /* Make sure we have the right NPortID if one is specified */ | |
1405 | if (phba->lpfc_injerr_nportid && | |
1406 | (phba->lpfc_injerr_nportid != ndlp->nlp_DID)) | |
1407 | return 0; | |
1408 | ||
1409 | /* | |
1410 | * Make sure we have the right WWPN if one is specified. | |
1411 | * wwn[0] should be a non-zero NAA in a good WWPN. | |
1412 | */ | |
1413 | if (phba->lpfc_injerr_wwpn.u.wwn[0] && | |
1414 | (memcmp(&ndlp->nlp_portname, &phba->lpfc_injerr_wwpn, | |
1415 | sizeof(struct lpfc_name)) != 0)) | |
1416 | return 0; | |
1417 | } | |
1418 | ||
1419 | /* Setup a ptr to the protection data if the SCSI host provides it */ | |
1420 | if (sgpe) { | |
1421 | src = (struct scsi_dif_tuple *)sg_virt(sgpe); | |
1422 | src += blockoff; | |
1423 | lpfc_cmd = (struct lpfc_scsi_buf *)sc->host_scribble; | |
1424 | } | |
1425 | ||
f9bb2da1 JS |
1426 | /* Should we change the Reference Tag */ |
1427 | if (reftag) { | |
acd6859b JS |
1428 | if (phba->lpfc_injerr_wref_cnt) { |
1429 | switch (op) { | |
1430 | case SCSI_PROT_WRITE_PASS: | |
9a6b09c0 JS |
1431 | if (src) { |
1432 | /* | |
1433 | * For WRITE_PASS, force the error | |
1434 | * to be sent on the wire. It should | |
1435 | * be detected by the Target. | |
1436 | * If blockoff != 0 error will be | |
1437 | * inserted in middle of the IO. | |
1438 | */ | |
acd6859b JS |
1439 | |
1440 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, | |
1441 | "9076 BLKGRD: Injecting reftag error: " | |
1442 | "write lba x%lx + x%x oldrefTag x%x\n", | |
1443 | (unsigned long)lba, blockoff, | |
9a6b09c0 | 1444 | be32_to_cpu(src->ref_tag)); |
f9bb2da1 | 1445 | |
acd6859b | 1446 | /* |
9a6b09c0 JS |
1447 | * Save the old ref_tag so we can |
1448 | * restore it on completion. | |
acd6859b | 1449 | */ |
9a6b09c0 JS |
1450 | if (lpfc_cmd) { |
1451 | lpfc_cmd->prot_data_type = | |
1452 | LPFC_INJERR_REFTAG; | |
1453 | lpfc_cmd->prot_data_segment = | |
1454 | src; | |
1455 | lpfc_cmd->prot_data = | |
1456 | src->ref_tag; | |
1457 | } | |
1458 | src->ref_tag = cpu_to_be32(0xDEADBEEF); | |
acd6859b | 1459 | phba->lpfc_injerr_wref_cnt--; |
4ac9b226 JS |
1460 | if (phba->lpfc_injerr_wref_cnt == 0) { |
1461 | phba->lpfc_injerr_nportid = 0; | |
1462 | phba->lpfc_injerr_lba = | |
1463 | LPFC_INJERR_LBA_OFF; | |
1464 | memset(&phba->lpfc_injerr_wwpn, | |
1465 | 0, sizeof(struct lpfc_name)); | |
1466 | } | |
9a6b09c0 JS |
1467 | rc = BG_ERR_TGT | BG_ERR_CHECK; |
1468 | ||
acd6859b JS |
1469 | break; |
1470 | } | |
1471 | /* Drop thru */ | |
9a6b09c0 | 1472 | case SCSI_PROT_WRITE_INSERT: |
acd6859b | 1473 | /* |
9a6b09c0 JS |
1474 | * For WRITE_INSERT, force the error |
1475 | * to be sent on the wire. It should be | |
1476 | * detected by the Target. | |
acd6859b | 1477 | */ |
9a6b09c0 | 1478 | /* DEADBEEF will be the reftag on the wire */ |
acd6859b JS |
1479 | *reftag = 0xDEADBEEF; |
1480 | phba->lpfc_injerr_wref_cnt--; | |
4ac9b226 JS |
1481 | if (phba->lpfc_injerr_wref_cnt == 0) { |
1482 | phba->lpfc_injerr_nportid = 0; | |
1483 | phba->lpfc_injerr_lba = | |
1484 | LPFC_INJERR_LBA_OFF; | |
1485 | memset(&phba->lpfc_injerr_wwpn, | |
1486 | 0, sizeof(struct lpfc_name)); | |
1487 | } | |
9a6b09c0 | 1488 | rc = BG_ERR_TGT | BG_ERR_CHECK; |
acd6859b JS |
1489 | |
1490 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, | |
9a6b09c0 | 1491 | "9078 BLKGRD: Injecting reftag error: " |
acd6859b JS |
1492 | "write lba x%lx\n", (unsigned long)lba); |
1493 | break; | |
9a6b09c0 | 1494 | case SCSI_PROT_WRITE_STRIP: |
acd6859b | 1495 | /* |
9a6b09c0 JS |
1496 | * For WRITE_STRIP and WRITE_PASS, |
1497 | * force the error on data | |
1498 | * being copied from SLI-Host to SLI-Port. | |
acd6859b | 1499 | */ |
f9bb2da1 JS |
1500 | *reftag = 0xDEADBEEF; |
1501 | phba->lpfc_injerr_wref_cnt--; | |
4ac9b226 JS |
1502 | if (phba->lpfc_injerr_wref_cnt == 0) { |
1503 | phba->lpfc_injerr_nportid = 0; | |
1504 | phba->lpfc_injerr_lba = | |
1505 | LPFC_INJERR_LBA_OFF; | |
1506 | memset(&phba->lpfc_injerr_wwpn, | |
1507 | 0, sizeof(struct lpfc_name)); | |
1508 | } | |
9a6b09c0 | 1509 | rc = BG_ERR_INIT; |
f9bb2da1 JS |
1510 | |
1511 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, | |
9a6b09c0 | 1512 | "9077 BLKGRD: Injecting reftag error: " |
f9bb2da1 | 1513 | "write lba x%lx\n", (unsigned long)lba); |
acd6859b | 1514 | break; |
f9bb2da1 | 1515 | } |
acd6859b JS |
1516 | } |
1517 | if (phba->lpfc_injerr_rref_cnt) { | |
1518 | switch (op) { | |
1519 | case SCSI_PROT_READ_INSERT: | |
acd6859b JS |
1520 | case SCSI_PROT_READ_STRIP: |
1521 | case SCSI_PROT_READ_PASS: | |
1522 | /* | |
1523 | * For READ_STRIP and READ_PASS, force the | |
1524 | * error on data being read off the wire. It | |
1525 | * should force an IO error to the driver. | |
1526 | */ | |
f9bb2da1 JS |
1527 | *reftag = 0xDEADBEEF; |
1528 | phba->lpfc_injerr_rref_cnt--; | |
4ac9b226 JS |
1529 | if (phba->lpfc_injerr_rref_cnt == 0) { |
1530 | phba->lpfc_injerr_nportid = 0; | |
1531 | phba->lpfc_injerr_lba = | |
1532 | LPFC_INJERR_LBA_OFF; | |
1533 | memset(&phba->lpfc_injerr_wwpn, | |
1534 | 0, sizeof(struct lpfc_name)); | |
1535 | } | |
acd6859b | 1536 | rc = BG_ERR_INIT; |
f9bb2da1 JS |
1537 | |
1538 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, | |
acd6859b | 1539 | "9079 BLKGRD: Injecting reftag error: " |
f9bb2da1 | 1540 | "read lba x%lx\n", (unsigned long)lba); |
acd6859b | 1541 | break; |
f9bb2da1 JS |
1542 | } |
1543 | } | |
1544 | } | |
1545 | ||
1546 | /* Should we change the Application Tag */ | |
1547 | if (apptag) { | |
acd6859b JS |
1548 | if (phba->lpfc_injerr_wapp_cnt) { |
1549 | switch (op) { | |
1550 | case SCSI_PROT_WRITE_PASS: | |
4ac9b226 | 1551 | if (src) { |
9a6b09c0 JS |
1552 | /* |
1553 | * For WRITE_PASS, force the error | |
1554 | * to be sent on the wire. It should | |
1555 | * be detected by the Target. | |
1556 | * If blockoff != 0 error will be | |
1557 | * inserted in middle of the IO. | |
1558 | */ | |
1559 | ||
acd6859b JS |
1560 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, |
1561 | "9080 BLKGRD: Injecting apptag error: " | |
1562 | "write lba x%lx + x%x oldappTag x%x\n", | |
1563 | (unsigned long)lba, blockoff, | |
9a6b09c0 | 1564 | be16_to_cpu(src->app_tag)); |
acd6859b JS |
1565 | |
1566 | /* | |
9a6b09c0 JS |
1567 | * Save the old app_tag so we can |
1568 | * restore it on completion. | |
acd6859b | 1569 | */ |
9a6b09c0 JS |
1570 | if (lpfc_cmd) { |
1571 | lpfc_cmd->prot_data_type = | |
1572 | LPFC_INJERR_APPTAG; | |
1573 | lpfc_cmd->prot_data_segment = | |
1574 | src; | |
1575 | lpfc_cmd->prot_data = | |
1576 | src->app_tag; | |
1577 | } | |
1578 | src->app_tag = cpu_to_be16(0xDEAD); | |
acd6859b | 1579 | phba->lpfc_injerr_wapp_cnt--; |
4ac9b226 JS |
1580 | if (phba->lpfc_injerr_wapp_cnt == 0) { |
1581 | phba->lpfc_injerr_nportid = 0; | |
1582 | phba->lpfc_injerr_lba = | |
1583 | LPFC_INJERR_LBA_OFF; | |
1584 | memset(&phba->lpfc_injerr_wwpn, | |
1585 | 0, sizeof(struct lpfc_name)); | |
1586 | } | |
9a6b09c0 | 1587 | rc = BG_ERR_TGT | BG_ERR_CHECK; |
acd6859b JS |
1588 | break; |
1589 | } | |
1590 | /* Drop thru */ | |
9a6b09c0 | 1591 | case SCSI_PROT_WRITE_INSERT: |
acd6859b | 1592 | /* |
9a6b09c0 JS |
1593 | * For WRITE_INSERT, force the |
1594 | * error to be sent on the wire. It should be | |
1595 | * detected by the Target. | |
acd6859b | 1596 | */ |
9a6b09c0 | 1597 | /* DEAD will be the apptag on the wire */ |
acd6859b JS |
1598 | *apptag = 0xDEAD; |
1599 | phba->lpfc_injerr_wapp_cnt--; | |
4ac9b226 JS |
1600 | if (phba->lpfc_injerr_wapp_cnt == 0) { |
1601 | phba->lpfc_injerr_nportid = 0; | |
1602 | phba->lpfc_injerr_lba = | |
1603 | LPFC_INJERR_LBA_OFF; | |
1604 | memset(&phba->lpfc_injerr_wwpn, | |
1605 | 0, sizeof(struct lpfc_name)); | |
1606 | } | |
9a6b09c0 | 1607 | rc = BG_ERR_TGT | BG_ERR_CHECK; |
f9bb2da1 | 1608 | |
acd6859b | 1609 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, |
9a6b09c0 | 1610 | "0813 BLKGRD: Injecting apptag error: " |
acd6859b JS |
1611 | "write lba x%lx\n", (unsigned long)lba); |
1612 | break; | |
9a6b09c0 | 1613 | case SCSI_PROT_WRITE_STRIP: |
acd6859b | 1614 | /* |
9a6b09c0 JS |
1615 | * For WRITE_STRIP and WRITE_PASS, |
1616 | * force the error on data | |
1617 | * being copied from SLI-Host to SLI-Port. | |
acd6859b | 1618 | */ |
f9bb2da1 JS |
1619 | *apptag = 0xDEAD; |
1620 | phba->lpfc_injerr_wapp_cnt--; | |
4ac9b226 JS |
1621 | if (phba->lpfc_injerr_wapp_cnt == 0) { |
1622 | phba->lpfc_injerr_nportid = 0; | |
1623 | phba->lpfc_injerr_lba = | |
1624 | LPFC_INJERR_LBA_OFF; | |
1625 | memset(&phba->lpfc_injerr_wwpn, | |
1626 | 0, sizeof(struct lpfc_name)); | |
1627 | } | |
9a6b09c0 | 1628 | rc = BG_ERR_INIT; |
f9bb2da1 JS |
1629 | |
1630 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, | |
9a6b09c0 | 1631 | "0812 BLKGRD: Injecting apptag error: " |
f9bb2da1 | 1632 | "write lba x%lx\n", (unsigned long)lba); |
acd6859b | 1633 | break; |
f9bb2da1 | 1634 | } |
acd6859b JS |
1635 | } |
1636 | if (phba->lpfc_injerr_rapp_cnt) { | |
1637 | switch (op) { | |
1638 | case SCSI_PROT_READ_INSERT: | |
acd6859b JS |
1639 | case SCSI_PROT_READ_STRIP: |
1640 | case SCSI_PROT_READ_PASS: | |
1641 | /* | |
1642 | * For READ_STRIP and READ_PASS, force the | |
1643 | * error on data being read off the wire. It | |
1644 | * should force an IO error to the driver. | |
1645 | */ | |
f9bb2da1 JS |
1646 | *apptag = 0xDEAD; |
1647 | phba->lpfc_injerr_rapp_cnt--; | |
4ac9b226 JS |
1648 | if (phba->lpfc_injerr_rapp_cnt == 0) { |
1649 | phba->lpfc_injerr_nportid = 0; | |
1650 | phba->lpfc_injerr_lba = | |
1651 | LPFC_INJERR_LBA_OFF; | |
1652 | memset(&phba->lpfc_injerr_wwpn, | |
1653 | 0, sizeof(struct lpfc_name)); | |
1654 | } | |
acd6859b | 1655 | rc = BG_ERR_INIT; |
f9bb2da1 JS |
1656 | |
1657 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, | |
acd6859b | 1658 | "0814 BLKGRD: Injecting apptag error: " |
f9bb2da1 | 1659 | "read lba x%lx\n", (unsigned long)lba); |
acd6859b | 1660 | break; |
f9bb2da1 JS |
1661 | } |
1662 | } | |
1663 | } | |
1664 | ||
acd6859b | 1665 | |
f9bb2da1 | 1666 | /* Should we change the Guard Tag */ |
acd6859b JS |
1667 | if (new_guard) { |
1668 | if (phba->lpfc_injerr_wgrd_cnt) { | |
1669 | switch (op) { | |
1670 | case SCSI_PROT_WRITE_PASS: | |
9a6b09c0 | 1671 | rc = BG_ERR_CHECK; |
acd6859b | 1672 | /* Drop thru */ |
9a6b09c0 JS |
1673 | |
1674 | case SCSI_PROT_WRITE_INSERT: | |
acd6859b | 1675 | /* |
9a6b09c0 JS |
1676 | * For WRITE_INSERT, force the |
1677 | * error to be sent on the wire. It should be | |
1678 | * detected by the Target. | |
acd6859b JS |
1679 | */ |
1680 | phba->lpfc_injerr_wgrd_cnt--; | |
4ac9b226 JS |
1681 | if (phba->lpfc_injerr_wgrd_cnt == 0) { |
1682 | phba->lpfc_injerr_nportid = 0; | |
1683 | phba->lpfc_injerr_lba = | |
1684 | LPFC_INJERR_LBA_OFF; | |
1685 | memset(&phba->lpfc_injerr_wwpn, | |
1686 | 0, sizeof(struct lpfc_name)); | |
1687 | } | |
f9bb2da1 | 1688 | |
9a6b09c0 | 1689 | rc |= BG_ERR_TGT | BG_ERR_SWAP; |
acd6859b | 1690 | /* Signals the caller to swap CRC->CSUM */ |
f9bb2da1 | 1691 | |
acd6859b | 1692 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, |
9a6b09c0 | 1693 | "0817 BLKGRD: Injecting guard error: " |
acd6859b JS |
1694 | "write lba x%lx\n", (unsigned long)lba); |
1695 | break; | |
9a6b09c0 | 1696 | case SCSI_PROT_WRITE_STRIP: |
acd6859b | 1697 | /* |
9a6b09c0 JS |
1698 | * For WRITE_STRIP and WRITE_PASS, |
1699 | * force the error on data | |
1700 | * being copied from SLI-Host to SLI-Port. | |
acd6859b JS |
1701 | */ |
1702 | phba->lpfc_injerr_wgrd_cnt--; | |
4ac9b226 JS |
1703 | if (phba->lpfc_injerr_wgrd_cnt == 0) { |
1704 | phba->lpfc_injerr_nportid = 0; | |
1705 | phba->lpfc_injerr_lba = | |
1706 | LPFC_INJERR_LBA_OFF; | |
1707 | memset(&phba->lpfc_injerr_wwpn, | |
1708 | 0, sizeof(struct lpfc_name)); | |
1709 | } | |
f9bb2da1 | 1710 | |
9a6b09c0 | 1711 | rc = BG_ERR_INIT | BG_ERR_SWAP; |
acd6859b JS |
1712 | /* Signals the caller to swap CRC->CSUM */ |
1713 | ||
1714 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, | |
9a6b09c0 | 1715 | "0816 BLKGRD: Injecting guard error: " |
acd6859b JS |
1716 | "write lba x%lx\n", (unsigned long)lba); |
1717 | break; | |
1718 | } | |
1719 | } | |
1720 | if (phba->lpfc_injerr_rgrd_cnt) { | |
1721 | switch (op) { | |
1722 | case SCSI_PROT_READ_INSERT: | |
acd6859b JS |
1723 | case SCSI_PROT_READ_STRIP: |
1724 | case SCSI_PROT_READ_PASS: | |
1725 | /* | |
1726 | * For READ_STRIP and READ_PASS, force the | |
1727 | * error on data being read off the wire. It | |
1728 | * should force an IO error to the driver. | |
1729 | */ | |
acd6859b | 1730 | phba->lpfc_injerr_rgrd_cnt--; |
4ac9b226 JS |
1731 | if (phba->lpfc_injerr_rgrd_cnt == 0) { |
1732 | phba->lpfc_injerr_nportid = 0; | |
1733 | phba->lpfc_injerr_lba = | |
1734 | LPFC_INJERR_LBA_OFF; | |
1735 | memset(&phba->lpfc_injerr_wwpn, | |
1736 | 0, sizeof(struct lpfc_name)); | |
1737 | } | |
acd6859b | 1738 | |
9a6b09c0 | 1739 | rc = BG_ERR_INIT | BG_ERR_SWAP; |
acd6859b JS |
1740 | /* Signals the caller to swap CRC->CSUM */ |
1741 | ||
1742 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, | |
1743 | "0818 BLKGRD: Injecting guard error: " | |
1744 | "read lba x%lx\n", (unsigned long)lba); | |
1745 | } | |
f9bb2da1 JS |
1746 | } |
1747 | } | |
acd6859b | 1748 | |
f9bb2da1 JS |
1749 | return rc; |
1750 | } | |
1751 | #endif | |
1752 | ||
acd6859b JS |
1753 | /** |
1754 | * lpfc_sc_to_bg_opcodes - Determine the BlockGuard opcodes to be used with | |
1755 | * the specified SCSI command. | |
1756 | * @phba: The Hba for which this call is being executed. | |
6c8eea54 JS |
1757 | * @sc: The SCSI command to examine |
1758 | * @txopt: (out) BlockGuard operation for transmitted data | |
1759 | * @rxopt: (out) BlockGuard operation for received data | |
1760 | * | |
1761 | * Returns: zero on success; non-zero if tx and/or rx op cannot be determined | |
1762 | * | |
acd6859b | 1763 | **/ |
e2a0a9d6 | 1764 | static int |
6c8eea54 JS |
1765 | lpfc_sc_to_bg_opcodes(struct lpfc_hba *phba, struct scsi_cmnd *sc, |
1766 | uint8_t *txop, uint8_t *rxop) | |
e2a0a9d6 JS |
1767 | { |
1768 | uint8_t guard_type = scsi_host_get_guard(sc->device->host); | |
6c8eea54 | 1769 | uint8_t ret = 0; |
e2a0a9d6 JS |
1770 | |
1771 | if (guard_type == SHOST_DIX_GUARD_IP) { | |
1772 | switch (scsi_get_prot_op(sc)) { | |
1773 | case SCSI_PROT_READ_INSERT: | |
1774 | case SCSI_PROT_WRITE_STRIP: | |
6c8eea54 | 1775 | *rxop = BG_OP_IN_NODIF_OUT_CSUM; |
4ac9b226 | 1776 | *txop = BG_OP_IN_CSUM_OUT_NODIF; |
e2a0a9d6 JS |
1777 | break; |
1778 | ||
1779 | case SCSI_PROT_READ_STRIP: | |
1780 | case SCSI_PROT_WRITE_INSERT: | |
6c8eea54 | 1781 | *rxop = BG_OP_IN_CRC_OUT_NODIF; |
4ac9b226 | 1782 | *txop = BG_OP_IN_NODIF_OUT_CRC; |
e2a0a9d6 JS |
1783 | break; |
1784 | ||
c6af4042 MP |
1785 | case SCSI_PROT_READ_PASS: |
1786 | case SCSI_PROT_WRITE_PASS: | |
6c8eea54 | 1787 | *rxop = BG_OP_IN_CRC_OUT_CSUM; |
4ac9b226 | 1788 | *txop = BG_OP_IN_CSUM_OUT_CRC; |
e2a0a9d6 JS |
1789 | break; |
1790 | ||
e2a0a9d6 JS |
1791 | case SCSI_PROT_NORMAL: |
1792 | default: | |
6a9c52cf | 1793 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, |
7c56b9fd JS |
1794 | "9063 BLKGRD: Bad op/guard:%d/IP combination\n", |
1795 | scsi_get_prot_op(sc)); | |
6c8eea54 | 1796 | ret = 1; |
e2a0a9d6 JS |
1797 | break; |
1798 | ||
1799 | } | |
7c56b9fd | 1800 | } else { |
e2a0a9d6 JS |
1801 | switch (scsi_get_prot_op(sc)) { |
1802 | case SCSI_PROT_READ_STRIP: | |
1803 | case SCSI_PROT_WRITE_INSERT: | |
6c8eea54 | 1804 | *rxop = BG_OP_IN_CRC_OUT_NODIF; |
4ac9b226 | 1805 | *txop = BG_OP_IN_NODIF_OUT_CRC; |
e2a0a9d6 JS |
1806 | break; |
1807 | ||
1808 | case SCSI_PROT_READ_PASS: | |
1809 | case SCSI_PROT_WRITE_PASS: | |
6c8eea54 | 1810 | *rxop = BG_OP_IN_CRC_OUT_CRC; |
4ac9b226 | 1811 | *txop = BG_OP_IN_CRC_OUT_CRC; |
e2a0a9d6 JS |
1812 | break; |
1813 | ||
e2a0a9d6 JS |
1814 | case SCSI_PROT_READ_INSERT: |
1815 | case SCSI_PROT_WRITE_STRIP: | |
7c56b9fd | 1816 | *rxop = BG_OP_IN_NODIF_OUT_CRC; |
4ac9b226 | 1817 | *txop = BG_OP_IN_CRC_OUT_NODIF; |
7c56b9fd JS |
1818 | break; |
1819 | ||
e2a0a9d6 JS |
1820 | case SCSI_PROT_NORMAL: |
1821 | default: | |
6a9c52cf | 1822 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, |
7c56b9fd JS |
1823 | "9075 BLKGRD: Bad op/guard:%d/CRC combination\n", |
1824 | scsi_get_prot_op(sc)); | |
6c8eea54 | 1825 | ret = 1; |
e2a0a9d6 JS |
1826 | break; |
1827 | } | |
e2a0a9d6 JS |
1828 | } |
1829 | ||
6c8eea54 | 1830 | return ret; |
e2a0a9d6 JS |
1831 | } |
1832 | ||
acd6859b JS |
1833 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
1834 | /** | |
1835 | * lpfc_bg_err_opcodes - reDetermine the BlockGuard opcodes to be used with | |
1836 | * the specified SCSI command in order to force a guard tag error. | |
1837 | * @phba: The Hba for which this call is being executed. | |
1838 | * @sc: The SCSI command to examine | |
1839 | * @txopt: (out) BlockGuard operation for transmitted data | |
1840 | * @rxopt: (out) BlockGuard operation for received data | |
1841 | * | |
1842 | * Returns: zero on success; non-zero if tx and/or rx op cannot be determined | |
1843 | * | |
1844 | **/ | |
1845 | static int | |
1846 | lpfc_bg_err_opcodes(struct lpfc_hba *phba, struct scsi_cmnd *sc, | |
1847 | uint8_t *txop, uint8_t *rxop) | |
1848 | { | |
1849 | uint8_t guard_type = scsi_host_get_guard(sc->device->host); | |
1850 | uint8_t ret = 0; | |
1851 | ||
1852 | if (guard_type == SHOST_DIX_GUARD_IP) { | |
1853 | switch (scsi_get_prot_op(sc)) { | |
1854 | case SCSI_PROT_READ_INSERT: | |
1855 | case SCSI_PROT_WRITE_STRIP: | |
acd6859b | 1856 | *rxop = BG_OP_IN_NODIF_OUT_CRC; |
4ac9b226 | 1857 | *txop = BG_OP_IN_CRC_OUT_NODIF; |
acd6859b JS |
1858 | break; |
1859 | ||
1860 | case SCSI_PROT_READ_STRIP: | |
1861 | case SCSI_PROT_WRITE_INSERT: | |
acd6859b | 1862 | *rxop = BG_OP_IN_CSUM_OUT_NODIF; |
4ac9b226 | 1863 | *txop = BG_OP_IN_NODIF_OUT_CSUM; |
acd6859b JS |
1864 | break; |
1865 | ||
1866 | case SCSI_PROT_READ_PASS: | |
1867 | case SCSI_PROT_WRITE_PASS: | |
4ac9b226 | 1868 | *rxop = BG_OP_IN_CSUM_OUT_CRC; |
9a6b09c0 | 1869 | *txop = BG_OP_IN_CRC_OUT_CSUM; |
acd6859b JS |
1870 | break; |
1871 | ||
1872 | case SCSI_PROT_NORMAL: | |
1873 | default: | |
1874 | break; | |
1875 | ||
1876 | } | |
1877 | } else { | |
1878 | switch (scsi_get_prot_op(sc)) { | |
1879 | case SCSI_PROT_READ_STRIP: | |
1880 | case SCSI_PROT_WRITE_INSERT: | |
acd6859b | 1881 | *rxop = BG_OP_IN_CSUM_OUT_NODIF; |
4ac9b226 | 1882 | *txop = BG_OP_IN_NODIF_OUT_CSUM; |
acd6859b JS |
1883 | break; |
1884 | ||
1885 | case SCSI_PROT_READ_PASS: | |
1886 | case SCSI_PROT_WRITE_PASS: | |
4ac9b226 | 1887 | *rxop = BG_OP_IN_CSUM_OUT_CSUM; |
9a6b09c0 | 1888 | *txop = BG_OP_IN_CSUM_OUT_CSUM; |
acd6859b JS |
1889 | break; |
1890 | ||
1891 | case SCSI_PROT_READ_INSERT: | |
1892 | case SCSI_PROT_WRITE_STRIP: | |
acd6859b | 1893 | *rxop = BG_OP_IN_NODIF_OUT_CSUM; |
4ac9b226 | 1894 | *txop = BG_OP_IN_CSUM_OUT_NODIF; |
acd6859b JS |
1895 | break; |
1896 | ||
1897 | case SCSI_PROT_NORMAL: | |
1898 | default: | |
1899 | break; | |
1900 | } | |
1901 | } | |
1902 | ||
1903 | return ret; | |
1904 | } | |
1905 | #endif | |
1906 | ||
1907 | /** | |
1908 | * lpfc_bg_setup_bpl - Setup BlockGuard BPL with no protection data | |
1909 | * @phba: The Hba for which this call is being executed. | |
1910 | * @sc: pointer to scsi command we're working on | |
1911 | * @bpl: pointer to buffer list for protection groups | |
1912 | * @datacnt: number of segments of data that have been dma mapped | |
1913 | * | |
1914 | * This function sets up BPL buffer list for protection groups of | |
e2a0a9d6 JS |
1915 | * type LPFC_PG_TYPE_NO_DIF |
1916 | * | |
1917 | * This is usually used when the HBA is instructed to generate | |
1918 | * DIFs and insert them into data stream (or strip DIF from | |
1919 | * incoming data stream) | |
1920 | * | |
1921 | * The buffer list consists of just one protection group described | |
1922 | * below: | |
1923 | * +-------------------------+ | |
6c8eea54 JS |
1924 | * start of prot group --> | PDE_5 | |
1925 | * +-------------------------+ | |
1926 | * | PDE_6 | | |
e2a0a9d6 JS |
1927 | * +-------------------------+ |
1928 | * | Data BDE | | |
1929 | * +-------------------------+ | |
1930 | * |more Data BDE's ... (opt)| | |
1931 | * +-------------------------+ | |
1932 | * | |
e2a0a9d6 JS |
1933 | * |
1934 | * Note: Data s/g buffers have been dma mapped | |
acd6859b JS |
1935 | * |
1936 | * Returns the number of BDEs added to the BPL. | |
1937 | **/ | |
e2a0a9d6 JS |
1938 | static int |
1939 | lpfc_bg_setup_bpl(struct lpfc_hba *phba, struct scsi_cmnd *sc, | |
1940 | struct ulp_bde64 *bpl, int datasegcnt) | |
1941 | { | |
1942 | struct scatterlist *sgde = NULL; /* s/g data entry */ | |
6c8eea54 JS |
1943 | struct lpfc_pde5 *pde5 = NULL; |
1944 | struct lpfc_pde6 *pde6 = NULL; | |
e2a0a9d6 | 1945 | dma_addr_t physaddr; |
6c8eea54 | 1946 | int i = 0, num_bde = 0, status; |
e2a0a9d6 | 1947 | int datadir = sc->sc_data_direction; |
0829a19a | 1948 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
acd6859b | 1949 | uint32_t rc; |
0829a19a | 1950 | #endif |
acd6859b | 1951 | uint32_t checking = 1; |
e2a0a9d6 | 1952 | uint32_t reftag; |
7c56b9fd | 1953 | unsigned blksize; |
6c8eea54 | 1954 | uint8_t txop, rxop; |
e2a0a9d6 | 1955 | |
6c8eea54 JS |
1956 | status = lpfc_sc_to_bg_opcodes(phba, sc, &txop, &rxop); |
1957 | if (status) | |
e2a0a9d6 JS |
1958 | goto out; |
1959 | ||
6c8eea54 | 1960 | /* extract some info from the scsi command for pde*/ |
e2a0a9d6 | 1961 | blksize = lpfc_cmd_blksize(sc); |
acd6859b | 1962 | reftag = (uint32_t)scsi_get_lba(sc); /* Truncate LBA */ |
e2a0a9d6 | 1963 | |
f9bb2da1 | 1964 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
4ac9b226 | 1965 | rc = lpfc_bg_err_inject(phba, sc, &reftag, NULL, 1); |
acd6859b | 1966 | if (rc) { |
9a6b09c0 | 1967 | if (rc & BG_ERR_SWAP) |
acd6859b | 1968 | lpfc_bg_err_opcodes(phba, sc, &txop, &rxop); |
9a6b09c0 | 1969 | if (rc & BG_ERR_CHECK) |
acd6859b JS |
1970 | checking = 0; |
1971 | } | |
f9bb2da1 JS |
1972 | #endif |
1973 | ||
6c8eea54 JS |
1974 | /* setup PDE5 with what we have */ |
1975 | pde5 = (struct lpfc_pde5 *) bpl; | |
1976 | memset(pde5, 0, sizeof(struct lpfc_pde5)); | |
1977 | bf_set(pde5_type, pde5, LPFC_PDE5_DESCRIPTOR); | |
6c8eea54 | 1978 | |
bc73905a | 1979 | /* Endianness conversion if necessary for PDE5 */ |
589a52d6 | 1980 | pde5->word0 = cpu_to_le32(pde5->word0); |
7c56b9fd | 1981 | pde5->reftag = cpu_to_le32(reftag); |
589a52d6 | 1982 | |
6c8eea54 JS |
1983 | /* advance bpl and increment bde count */ |
1984 | num_bde++; | |
1985 | bpl++; | |
1986 | pde6 = (struct lpfc_pde6 *) bpl; | |
1987 | ||
1988 | /* setup PDE6 with the rest of the info */ | |
1989 | memset(pde6, 0, sizeof(struct lpfc_pde6)); | |
1990 | bf_set(pde6_type, pde6, LPFC_PDE6_DESCRIPTOR); | |
1991 | bf_set(pde6_optx, pde6, txop); | |
1992 | bf_set(pde6_oprx, pde6, rxop); | |
1993 | if (datadir == DMA_FROM_DEVICE) { | |
acd6859b JS |
1994 | bf_set(pde6_ce, pde6, checking); |
1995 | bf_set(pde6_re, pde6, checking); | |
6c8eea54 JS |
1996 | } |
1997 | bf_set(pde6_ai, pde6, 1); | |
7c56b9fd JS |
1998 | bf_set(pde6_ae, pde6, 0); |
1999 | bf_set(pde6_apptagval, pde6, 0); | |
e2a0a9d6 | 2000 | |
bc73905a | 2001 | /* Endianness conversion if necessary for PDE6 */ |
589a52d6 JS |
2002 | pde6->word0 = cpu_to_le32(pde6->word0); |
2003 | pde6->word1 = cpu_to_le32(pde6->word1); | |
2004 | pde6->word2 = cpu_to_le32(pde6->word2); | |
2005 | ||
6c8eea54 | 2006 | /* advance bpl and increment bde count */ |
e2a0a9d6 JS |
2007 | num_bde++; |
2008 | bpl++; | |
2009 | ||
2010 | /* assumption: caller has already run dma_map_sg on command data */ | |
2011 | scsi_for_each_sg(sc, sgde, datasegcnt, i) { | |
2012 | physaddr = sg_dma_address(sgde); | |
2013 | bpl->addrLow = le32_to_cpu(putPaddrLow(physaddr)); | |
2014 | bpl->addrHigh = le32_to_cpu(putPaddrHigh(physaddr)); | |
2015 | bpl->tus.f.bdeSize = sg_dma_len(sgde); | |
2016 | if (datadir == DMA_TO_DEVICE) | |
2017 | bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64; | |
2018 | else | |
2019 | bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64I; | |
2020 | bpl->tus.w = le32_to_cpu(bpl->tus.w); | |
2021 | bpl++; | |
2022 | num_bde++; | |
2023 | } | |
2024 | ||
2025 | out: | |
2026 | return num_bde; | |
2027 | } | |
2028 | ||
acd6859b JS |
2029 | /** |
2030 | * lpfc_bg_setup_bpl_prot - Setup BlockGuard BPL with protection data | |
2031 | * @phba: The Hba for which this call is being executed. | |
2032 | * @sc: pointer to scsi command we're working on | |
2033 | * @bpl: pointer to buffer list for protection groups | |
2034 | * @datacnt: number of segments of data that have been dma mapped | |
2035 | * @protcnt: number of segment of protection data that have been dma mapped | |
2036 | * | |
2037 | * This function sets up BPL buffer list for protection groups of | |
2038 | * type LPFC_PG_TYPE_DIF | |
e2a0a9d6 JS |
2039 | * |
2040 | * This is usually used when DIFs are in their own buffers, | |
2041 | * separate from the data. The HBA can then by instructed | |
2042 | * to place the DIFs in the outgoing stream. For read operations, | |
2043 | * The HBA could extract the DIFs and place it in DIF buffers. | |
2044 | * | |
2045 | * The buffer list for this type consists of one or more of the | |
2046 | * protection groups described below: | |
2047 | * +-------------------------+ | |
6c8eea54 | 2048 | * start of first prot group --> | PDE_5 | |
e2a0a9d6 | 2049 | * +-------------------------+ |
6c8eea54 JS |
2050 | * | PDE_6 | |
2051 | * +-------------------------+ | |
2052 | * | PDE_7 (Prot BDE) | | |
e2a0a9d6 JS |
2053 | * +-------------------------+ |
2054 | * | Data BDE | | |
2055 | * +-------------------------+ | |
2056 | * |more Data BDE's ... (opt)| | |
2057 | * +-------------------------+ | |
6c8eea54 | 2058 | * start of new prot group --> | PDE_5 | |
e2a0a9d6 JS |
2059 | * +-------------------------+ |
2060 | * | ... | | |
2061 | * +-------------------------+ | |
2062 | * | |
e2a0a9d6 JS |
2063 | * Note: It is assumed that both data and protection s/g buffers have been |
2064 | * mapped for DMA | |
acd6859b JS |
2065 | * |
2066 | * Returns the number of BDEs added to the BPL. | |
2067 | **/ | |
e2a0a9d6 JS |
2068 | static int |
2069 | lpfc_bg_setup_bpl_prot(struct lpfc_hba *phba, struct scsi_cmnd *sc, | |
2070 | struct ulp_bde64 *bpl, int datacnt, int protcnt) | |
2071 | { | |
2072 | struct scatterlist *sgde = NULL; /* s/g data entry */ | |
2073 | struct scatterlist *sgpe = NULL; /* s/g prot entry */ | |
6c8eea54 JS |
2074 | struct lpfc_pde5 *pde5 = NULL; |
2075 | struct lpfc_pde6 *pde6 = NULL; | |
7f86059a | 2076 | struct lpfc_pde7 *pde7 = NULL; |
e2a0a9d6 JS |
2077 | dma_addr_t dataphysaddr, protphysaddr; |
2078 | unsigned short curr_data = 0, curr_prot = 0; | |
7f86059a JS |
2079 | unsigned int split_offset; |
2080 | unsigned int protgroup_len, protgroup_offset = 0, protgroup_remainder; | |
e2a0a9d6 JS |
2081 | unsigned int protgrp_blks, protgrp_bytes; |
2082 | unsigned int remainder, subtotal; | |
6c8eea54 | 2083 | int status; |
e2a0a9d6 JS |
2084 | int datadir = sc->sc_data_direction; |
2085 | unsigned char pgdone = 0, alldone = 0; | |
2086 | unsigned blksize; | |
0829a19a | 2087 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
acd6859b | 2088 | uint32_t rc; |
0829a19a | 2089 | #endif |
acd6859b | 2090 | uint32_t checking = 1; |
e2a0a9d6 | 2091 | uint32_t reftag; |
6c8eea54 | 2092 | uint8_t txop, rxop; |
e2a0a9d6 JS |
2093 | int num_bde = 0; |
2094 | ||
2095 | sgpe = scsi_prot_sglist(sc); | |
2096 | sgde = scsi_sglist(sc); | |
2097 | ||
2098 | if (!sgpe || !sgde) { | |
2099 | lpfc_printf_log(phba, KERN_ERR, LOG_FCP, | |
acd6859b JS |
2100 | "9020 Invalid s/g entry: data=0x%p prot=0x%p\n", |
2101 | sgpe, sgde); | |
2102 | return 0; | |
2103 | } | |
2104 | ||
2105 | status = lpfc_sc_to_bg_opcodes(phba, sc, &txop, &rxop); | |
2106 | if (status) | |
2107 | goto out; | |
2108 | ||
2109 | /* extract some info from the scsi command */ | |
2110 | blksize = lpfc_cmd_blksize(sc); | |
2111 | reftag = (uint32_t)scsi_get_lba(sc); /* Truncate LBA */ | |
2112 | ||
2113 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS | |
4ac9b226 | 2114 | rc = lpfc_bg_err_inject(phba, sc, &reftag, NULL, 1); |
acd6859b | 2115 | if (rc) { |
9a6b09c0 | 2116 | if (rc & BG_ERR_SWAP) |
acd6859b | 2117 | lpfc_bg_err_opcodes(phba, sc, &txop, &rxop); |
9a6b09c0 | 2118 | if (rc & BG_ERR_CHECK) |
acd6859b JS |
2119 | checking = 0; |
2120 | } | |
2121 | #endif | |
2122 | ||
2123 | split_offset = 0; | |
2124 | do { | |
2125 | /* setup PDE5 with what we have */ | |
2126 | pde5 = (struct lpfc_pde5 *) bpl; | |
2127 | memset(pde5, 0, sizeof(struct lpfc_pde5)); | |
2128 | bf_set(pde5_type, pde5, LPFC_PDE5_DESCRIPTOR); | |
2129 | ||
2130 | /* Endianness conversion if necessary for PDE5 */ | |
2131 | pde5->word0 = cpu_to_le32(pde5->word0); | |
2132 | pde5->reftag = cpu_to_le32(reftag); | |
2133 | ||
2134 | /* advance bpl and increment bde count */ | |
2135 | num_bde++; | |
2136 | bpl++; | |
2137 | pde6 = (struct lpfc_pde6 *) bpl; | |
2138 | ||
2139 | /* setup PDE6 with the rest of the info */ | |
2140 | memset(pde6, 0, sizeof(struct lpfc_pde6)); | |
2141 | bf_set(pde6_type, pde6, LPFC_PDE6_DESCRIPTOR); | |
2142 | bf_set(pde6_optx, pde6, txop); | |
2143 | bf_set(pde6_oprx, pde6, rxop); | |
2144 | bf_set(pde6_ce, pde6, checking); | |
2145 | bf_set(pde6_re, pde6, checking); | |
2146 | bf_set(pde6_ai, pde6, 1); | |
2147 | bf_set(pde6_ae, pde6, 0); | |
2148 | bf_set(pde6_apptagval, pde6, 0); | |
2149 | ||
2150 | /* Endianness conversion if necessary for PDE6 */ | |
2151 | pde6->word0 = cpu_to_le32(pde6->word0); | |
2152 | pde6->word1 = cpu_to_le32(pde6->word1); | |
2153 | pde6->word2 = cpu_to_le32(pde6->word2); | |
2154 | ||
2155 | /* advance bpl and increment bde count */ | |
2156 | num_bde++; | |
2157 | bpl++; | |
2158 | ||
2159 | /* setup the first BDE that points to protection buffer */ | |
2160 | protphysaddr = sg_dma_address(sgpe) + protgroup_offset; | |
2161 | protgroup_len = sg_dma_len(sgpe) - protgroup_offset; | |
2162 | ||
2163 | /* must be integer multiple of the DIF block length */ | |
2164 | BUG_ON(protgroup_len % 8); | |
2165 | ||
2166 | pde7 = (struct lpfc_pde7 *) bpl; | |
2167 | memset(pde7, 0, sizeof(struct lpfc_pde7)); | |
2168 | bf_set(pde7_type, pde7, LPFC_PDE7_DESCRIPTOR); | |
2169 | ||
2170 | pde7->addrHigh = le32_to_cpu(putPaddrHigh(protphysaddr)); | |
2171 | pde7->addrLow = le32_to_cpu(putPaddrLow(protphysaddr)); | |
2172 | ||
2173 | protgrp_blks = protgroup_len / 8; | |
2174 | protgrp_bytes = protgrp_blks * blksize; | |
2175 | ||
2176 | /* check if this pde is crossing the 4K boundary; if so split */ | |
2177 | if ((pde7->addrLow & 0xfff) + protgroup_len > 0x1000) { | |
2178 | protgroup_remainder = 0x1000 - (pde7->addrLow & 0xfff); | |
2179 | protgroup_offset += protgroup_remainder; | |
2180 | protgrp_blks = protgroup_remainder / 8; | |
2181 | protgrp_bytes = protgrp_blks * blksize; | |
2182 | } else { | |
2183 | protgroup_offset = 0; | |
2184 | curr_prot++; | |
2185 | } | |
2186 | ||
2187 | num_bde++; | |
2188 | ||
2189 | /* setup BDE's for data blocks associated with DIF data */ | |
2190 | pgdone = 0; | |
2191 | subtotal = 0; /* total bytes processed for current prot grp */ | |
2192 | while (!pgdone) { | |
2193 | if (!sgde) { | |
2194 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, | |
2195 | "9065 BLKGRD:%s Invalid data segment\n", | |
2196 | __func__); | |
2197 | return 0; | |
2198 | } | |
2199 | bpl++; | |
2200 | dataphysaddr = sg_dma_address(sgde) + split_offset; | |
2201 | bpl->addrLow = le32_to_cpu(putPaddrLow(dataphysaddr)); | |
2202 | bpl->addrHigh = le32_to_cpu(putPaddrHigh(dataphysaddr)); | |
2203 | ||
2204 | remainder = sg_dma_len(sgde) - split_offset; | |
2205 | ||
2206 | if ((subtotal + remainder) <= protgrp_bytes) { | |
2207 | /* we can use this whole buffer */ | |
2208 | bpl->tus.f.bdeSize = remainder; | |
2209 | split_offset = 0; | |
2210 | ||
2211 | if ((subtotal + remainder) == protgrp_bytes) | |
2212 | pgdone = 1; | |
2213 | } else { | |
2214 | /* must split this buffer with next prot grp */ | |
2215 | bpl->tus.f.bdeSize = protgrp_bytes - subtotal; | |
2216 | split_offset += bpl->tus.f.bdeSize; | |
2217 | } | |
2218 | ||
2219 | subtotal += bpl->tus.f.bdeSize; | |
2220 | ||
2221 | if (datadir == DMA_TO_DEVICE) | |
2222 | bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64; | |
2223 | else | |
2224 | bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64I; | |
2225 | bpl->tus.w = le32_to_cpu(bpl->tus.w); | |
2226 | ||
2227 | num_bde++; | |
2228 | curr_data++; | |
2229 | ||
2230 | if (split_offset) | |
2231 | break; | |
2232 | ||
2233 | /* Move to the next s/g segment if possible */ | |
2234 | sgde = sg_next(sgde); | |
2235 | ||
2236 | } | |
2237 | ||
2238 | if (protgroup_offset) { | |
2239 | /* update the reference tag */ | |
2240 | reftag += protgrp_blks; | |
2241 | bpl++; | |
2242 | continue; | |
2243 | } | |
2244 | ||
2245 | /* are we done ? */ | |
2246 | if (curr_prot == protcnt) { | |
2247 | alldone = 1; | |
2248 | } else if (curr_prot < protcnt) { | |
2249 | /* advance to next prot buffer */ | |
2250 | sgpe = sg_next(sgpe); | |
2251 | bpl++; | |
2252 | ||
2253 | /* update the reference tag */ | |
2254 | reftag += protgrp_blks; | |
2255 | } else { | |
2256 | /* if we're here, we have a bug */ | |
2257 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, | |
2258 | "9054 BLKGRD: bug in %s\n", __func__); | |
2259 | } | |
2260 | ||
2261 | } while (!alldone); | |
2262 | out: | |
2263 | ||
2264 | return num_bde; | |
2265 | } | |
2266 | ||
2267 | /** | |
2268 | * lpfc_bg_setup_sgl - Setup BlockGuard SGL with no protection data | |
2269 | * @phba: The Hba for which this call is being executed. | |
2270 | * @sc: pointer to scsi command we're working on | |
2271 | * @sgl: pointer to buffer list for protection groups | |
2272 | * @datacnt: number of segments of data that have been dma mapped | |
2273 | * | |
2274 | * This function sets up SGL buffer list for protection groups of | |
2275 | * type LPFC_PG_TYPE_NO_DIF | |
2276 | * | |
2277 | * This is usually used when the HBA is instructed to generate | |
2278 | * DIFs and insert them into data stream (or strip DIF from | |
2279 | * incoming data stream) | |
2280 | * | |
2281 | * The buffer list consists of just one protection group described | |
2282 | * below: | |
2283 | * +-------------------------+ | |
2284 | * start of prot group --> | DI_SEED | | |
2285 | * +-------------------------+ | |
2286 | * | Data SGE | | |
2287 | * +-------------------------+ | |
2288 | * |more Data SGE's ... (opt)| | |
2289 | * +-------------------------+ | |
2290 | * | |
2291 | * | |
2292 | * Note: Data s/g buffers have been dma mapped | |
2293 | * | |
2294 | * Returns the number of SGEs added to the SGL. | |
2295 | **/ | |
2296 | static int | |
2297 | lpfc_bg_setup_sgl(struct lpfc_hba *phba, struct scsi_cmnd *sc, | |
2298 | struct sli4_sge *sgl, int datasegcnt) | |
2299 | { | |
2300 | struct scatterlist *sgde = NULL; /* s/g data entry */ | |
2301 | struct sli4_sge_diseed *diseed = NULL; | |
2302 | dma_addr_t physaddr; | |
2303 | int i = 0, num_sge = 0, status; | |
2304 | int datadir = sc->sc_data_direction; | |
2305 | uint32_t reftag; | |
2306 | unsigned blksize; | |
2307 | uint8_t txop, rxop; | |
0829a19a | 2308 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
acd6859b | 2309 | uint32_t rc; |
0829a19a | 2310 | #endif |
acd6859b JS |
2311 | uint32_t checking = 1; |
2312 | uint32_t dma_len; | |
2313 | uint32_t dma_offset = 0; | |
2314 | ||
2315 | status = lpfc_sc_to_bg_opcodes(phba, sc, &txop, &rxop); | |
2316 | if (status) | |
2317 | goto out; | |
2318 | ||
2319 | /* extract some info from the scsi command for pde*/ | |
2320 | blksize = lpfc_cmd_blksize(sc); | |
2321 | reftag = (uint32_t)scsi_get_lba(sc); /* Truncate LBA */ | |
2322 | ||
2323 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS | |
4ac9b226 | 2324 | rc = lpfc_bg_err_inject(phba, sc, &reftag, NULL, 1); |
acd6859b | 2325 | if (rc) { |
9a6b09c0 | 2326 | if (rc & BG_ERR_SWAP) |
acd6859b | 2327 | lpfc_bg_err_opcodes(phba, sc, &txop, &rxop); |
9a6b09c0 | 2328 | if (rc & BG_ERR_CHECK) |
acd6859b JS |
2329 | checking = 0; |
2330 | } | |
2331 | #endif | |
2332 | ||
2333 | /* setup DISEED with what we have */ | |
2334 | diseed = (struct sli4_sge_diseed *) sgl; | |
2335 | memset(diseed, 0, sizeof(struct sli4_sge_diseed)); | |
2336 | bf_set(lpfc_sli4_sge_type, sgl, LPFC_SGE_TYPE_DISEED); | |
2337 | ||
2338 | /* Endianness conversion if necessary */ | |
2339 | diseed->ref_tag = cpu_to_le32(reftag); | |
2340 | diseed->ref_tag_tran = diseed->ref_tag; | |
2341 | ||
2342 | /* setup DISEED with the rest of the info */ | |
2343 | bf_set(lpfc_sli4_sge_dif_optx, diseed, txop); | |
2344 | bf_set(lpfc_sli4_sge_dif_oprx, diseed, rxop); | |
2345 | if (datadir == DMA_FROM_DEVICE) { | |
2346 | bf_set(lpfc_sli4_sge_dif_ce, diseed, checking); | |
2347 | bf_set(lpfc_sli4_sge_dif_re, diseed, checking); | |
2348 | } | |
2349 | bf_set(lpfc_sli4_sge_dif_ai, diseed, 1); | |
2350 | bf_set(lpfc_sli4_sge_dif_me, diseed, 0); | |
2351 | ||
2352 | /* Endianness conversion if necessary for DISEED */ | |
2353 | diseed->word2 = cpu_to_le32(diseed->word2); | |
2354 | diseed->word3 = cpu_to_le32(diseed->word3); | |
2355 | ||
2356 | /* advance bpl and increment sge count */ | |
2357 | num_sge++; | |
2358 | sgl++; | |
2359 | ||
2360 | /* assumption: caller has already run dma_map_sg on command data */ | |
2361 | scsi_for_each_sg(sc, sgde, datasegcnt, i) { | |
2362 | physaddr = sg_dma_address(sgde); | |
2363 | dma_len = sg_dma_len(sgde); | |
2364 | sgl->addr_lo = cpu_to_le32(putPaddrLow(physaddr)); | |
2365 | sgl->addr_hi = cpu_to_le32(putPaddrHigh(physaddr)); | |
2366 | if ((i + 1) == datasegcnt) | |
2367 | bf_set(lpfc_sli4_sge_last, sgl, 1); | |
2368 | else | |
2369 | bf_set(lpfc_sli4_sge_last, sgl, 0); | |
2370 | bf_set(lpfc_sli4_sge_offset, sgl, dma_offset); | |
2371 | bf_set(lpfc_sli4_sge_type, sgl, LPFC_SGE_TYPE_DATA); | |
2372 | ||
2373 | sgl->sge_len = cpu_to_le32(dma_len); | |
2374 | dma_offset += dma_len; | |
2375 | ||
2376 | sgl++; | |
2377 | num_sge++; | |
2378 | } | |
2379 | ||
2380 | out: | |
2381 | return num_sge; | |
2382 | } | |
2383 | ||
2384 | /** | |
2385 | * lpfc_bg_setup_sgl_prot - Setup BlockGuard SGL with protection data | |
2386 | * @phba: The Hba for which this call is being executed. | |
2387 | * @sc: pointer to scsi command we're working on | |
2388 | * @sgl: pointer to buffer list for protection groups | |
2389 | * @datacnt: number of segments of data that have been dma mapped | |
2390 | * @protcnt: number of segment of protection data that have been dma mapped | |
2391 | * | |
2392 | * This function sets up SGL buffer list for protection groups of | |
2393 | * type LPFC_PG_TYPE_DIF | |
2394 | * | |
2395 | * This is usually used when DIFs are in their own buffers, | |
2396 | * separate from the data. The HBA can then by instructed | |
2397 | * to place the DIFs in the outgoing stream. For read operations, | |
2398 | * The HBA could extract the DIFs and place it in DIF buffers. | |
2399 | * | |
2400 | * The buffer list for this type consists of one or more of the | |
2401 | * protection groups described below: | |
2402 | * +-------------------------+ | |
2403 | * start of first prot group --> | DISEED | | |
2404 | * +-------------------------+ | |
2405 | * | DIF (Prot SGE) | | |
2406 | * +-------------------------+ | |
2407 | * | Data SGE | | |
2408 | * +-------------------------+ | |
2409 | * |more Data SGE's ... (opt)| | |
2410 | * +-------------------------+ | |
2411 | * start of new prot group --> | DISEED | | |
2412 | * +-------------------------+ | |
2413 | * | ... | | |
2414 | * +-------------------------+ | |
2415 | * | |
2416 | * Note: It is assumed that both data and protection s/g buffers have been | |
2417 | * mapped for DMA | |
2418 | * | |
2419 | * Returns the number of SGEs added to the SGL. | |
2420 | **/ | |
2421 | static int | |
2422 | lpfc_bg_setup_sgl_prot(struct lpfc_hba *phba, struct scsi_cmnd *sc, | |
2423 | struct sli4_sge *sgl, int datacnt, int protcnt) | |
2424 | { | |
2425 | struct scatterlist *sgde = NULL; /* s/g data entry */ | |
2426 | struct scatterlist *sgpe = NULL; /* s/g prot entry */ | |
2427 | struct sli4_sge_diseed *diseed = NULL; | |
2428 | dma_addr_t dataphysaddr, protphysaddr; | |
2429 | unsigned short curr_data = 0, curr_prot = 0; | |
2430 | unsigned int split_offset; | |
2431 | unsigned int protgroup_len, protgroup_offset = 0, protgroup_remainder; | |
2432 | unsigned int protgrp_blks, protgrp_bytes; | |
2433 | unsigned int remainder, subtotal; | |
2434 | int status; | |
2435 | unsigned char pgdone = 0, alldone = 0; | |
2436 | unsigned blksize; | |
2437 | uint32_t reftag; | |
2438 | uint8_t txop, rxop; | |
2439 | uint32_t dma_len; | |
0829a19a | 2440 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
acd6859b | 2441 | uint32_t rc; |
0829a19a | 2442 | #endif |
acd6859b JS |
2443 | uint32_t checking = 1; |
2444 | uint32_t dma_offset = 0; | |
2445 | int num_sge = 0; | |
2446 | ||
2447 | sgpe = scsi_prot_sglist(sc); | |
2448 | sgde = scsi_sglist(sc); | |
2449 | ||
2450 | if (!sgpe || !sgde) { | |
2451 | lpfc_printf_log(phba, KERN_ERR, LOG_FCP, | |
2452 | "9082 Invalid s/g entry: data=0x%p prot=0x%p\n", | |
e2a0a9d6 JS |
2453 | sgpe, sgde); |
2454 | return 0; | |
2455 | } | |
2456 | ||
6c8eea54 JS |
2457 | status = lpfc_sc_to_bg_opcodes(phba, sc, &txop, &rxop); |
2458 | if (status) | |
e2a0a9d6 JS |
2459 | goto out; |
2460 | ||
6c8eea54 | 2461 | /* extract some info from the scsi command */ |
e2a0a9d6 | 2462 | blksize = lpfc_cmd_blksize(sc); |
acd6859b | 2463 | reftag = (uint32_t)scsi_get_lba(sc); /* Truncate LBA */ |
e2a0a9d6 | 2464 | |
f9bb2da1 | 2465 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
4ac9b226 | 2466 | rc = lpfc_bg_err_inject(phba, sc, &reftag, NULL, 1); |
acd6859b | 2467 | if (rc) { |
9a6b09c0 | 2468 | if (rc & BG_ERR_SWAP) |
acd6859b | 2469 | lpfc_bg_err_opcodes(phba, sc, &txop, &rxop); |
9a6b09c0 | 2470 | if (rc & BG_ERR_CHECK) |
acd6859b JS |
2471 | checking = 0; |
2472 | } | |
f9bb2da1 JS |
2473 | #endif |
2474 | ||
e2a0a9d6 JS |
2475 | split_offset = 0; |
2476 | do { | |
acd6859b JS |
2477 | /* setup DISEED with what we have */ |
2478 | diseed = (struct sli4_sge_diseed *) sgl; | |
2479 | memset(diseed, 0, sizeof(struct sli4_sge_diseed)); | |
2480 | bf_set(lpfc_sli4_sge_type, sgl, LPFC_SGE_TYPE_DISEED); | |
2481 | ||
2482 | /* Endianness conversion if necessary */ | |
2483 | diseed->ref_tag = cpu_to_le32(reftag); | |
2484 | diseed->ref_tag_tran = diseed->ref_tag; | |
2485 | ||
2486 | /* setup DISEED with the rest of the info */ | |
2487 | bf_set(lpfc_sli4_sge_dif_optx, diseed, txop); | |
2488 | bf_set(lpfc_sli4_sge_dif_oprx, diseed, rxop); | |
2489 | bf_set(lpfc_sli4_sge_dif_ce, diseed, checking); | |
2490 | bf_set(lpfc_sli4_sge_dif_re, diseed, checking); | |
2491 | bf_set(lpfc_sli4_sge_dif_ai, diseed, 1); | |
2492 | bf_set(lpfc_sli4_sge_dif_me, diseed, 0); | |
2493 | ||
2494 | /* Endianness conversion if necessary for DISEED */ | |
2495 | diseed->word2 = cpu_to_le32(diseed->word2); | |
2496 | diseed->word3 = cpu_to_le32(diseed->word3); | |
2497 | ||
2498 | /* advance sgl and increment bde count */ | |
2499 | num_sge++; | |
2500 | sgl++; | |
e2a0a9d6 JS |
2501 | |
2502 | /* setup the first BDE that points to protection buffer */ | |
7f86059a JS |
2503 | protphysaddr = sg_dma_address(sgpe) + protgroup_offset; |
2504 | protgroup_len = sg_dma_len(sgpe) - protgroup_offset; | |
e2a0a9d6 | 2505 | |
e2a0a9d6 JS |
2506 | /* must be integer multiple of the DIF block length */ |
2507 | BUG_ON(protgroup_len % 8); | |
2508 | ||
acd6859b JS |
2509 | /* Now setup DIF SGE */ |
2510 | sgl->word2 = 0; | |
2511 | bf_set(lpfc_sli4_sge_type, sgl, LPFC_SGE_TYPE_DIF); | |
2512 | sgl->addr_hi = le32_to_cpu(putPaddrHigh(protphysaddr)); | |
2513 | sgl->addr_lo = le32_to_cpu(putPaddrLow(protphysaddr)); | |
2514 | sgl->word2 = cpu_to_le32(sgl->word2); | |
7f86059a | 2515 | |
e2a0a9d6 JS |
2516 | protgrp_blks = protgroup_len / 8; |
2517 | protgrp_bytes = protgrp_blks * blksize; | |
2518 | ||
acd6859b JS |
2519 | /* check if DIF SGE is crossing the 4K boundary; if so split */ |
2520 | if ((sgl->addr_lo & 0xfff) + protgroup_len > 0x1000) { | |
2521 | protgroup_remainder = 0x1000 - (sgl->addr_lo & 0xfff); | |
7f86059a JS |
2522 | protgroup_offset += protgroup_remainder; |
2523 | protgrp_blks = protgroup_remainder / 8; | |
7c56b9fd | 2524 | protgrp_bytes = protgrp_blks * blksize; |
7f86059a JS |
2525 | } else { |
2526 | protgroup_offset = 0; | |
2527 | curr_prot++; | |
2528 | } | |
e2a0a9d6 | 2529 | |
acd6859b | 2530 | num_sge++; |
e2a0a9d6 | 2531 | |
acd6859b | 2532 | /* setup SGE's for data blocks associated with DIF data */ |
e2a0a9d6 JS |
2533 | pgdone = 0; |
2534 | subtotal = 0; /* total bytes processed for current prot grp */ | |
2535 | while (!pgdone) { | |
2536 | if (!sgde) { | |
6a9c52cf | 2537 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, |
acd6859b | 2538 | "9086 BLKGRD:%s Invalid data segment\n", |
e2a0a9d6 JS |
2539 | __func__); |
2540 | return 0; | |
2541 | } | |
acd6859b | 2542 | sgl++; |
e2a0a9d6 | 2543 | dataphysaddr = sg_dma_address(sgde) + split_offset; |
e2a0a9d6 JS |
2544 | |
2545 | remainder = sg_dma_len(sgde) - split_offset; | |
2546 | ||
2547 | if ((subtotal + remainder) <= protgrp_bytes) { | |
2548 | /* we can use this whole buffer */ | |
acd6859b | 2549 | dma_len = remainder; |
e2a0a9d6 JS |
2550 | split_offset = 0; |
2551 | ||
2552 | if ((subtotal + remainder) == protgrp_bytes) | |
2553 | pgdone = 1; | |
2554 | } else { | |
2555 | /* must split this buffer with next prot grp */ | |
acd6859b JS |
2556 | dma_len = protgrp_bytes - subtotal; |
2557 | split_offset += dma_len; | |
e2a0a9d6 JS |
2558 | } |
2559 | ||
acd6859b | 2560 | subtotal += dma_len; |
e2a0a9d6 | 2561 | |
acd6859b JS |
2562 | sgl->addr_lo = cpu_to_le32(putPaddrLow(dataphysaddr)); |
2563 | sgl->addr_hi = cpu_to_le32(putPaddrHigh(dataphysaddr)); | |
2564 | bf_set(lpfc_sli4_sge_last, sgl, 0); | |
2565 | bf_set(lpfc_sli4_sge_offset, sgl, dma_offset); | |
2566 | bf_set(lpfc_sli4_sge_type, sgl, LPFC_SGE_TYPE_DATA); | |
e2a0a9d6 | 2567 | |
acd6859b JS |
2568 | sgl->sge_len = cpu_to_le32(dma_len); |
2569 | dma_offset += dma_len; | |
2570 | ||
2571 | num_sge++; | |
e2a0a9d6 JS |
2572 | curr_data++; |
2573 | ||
2574 | if (split_offset) | |
2575 | break; | |
2576 | ||
2577 | /* Move to the next s/g segment if possible */ | |
2578 | sgde = sg_next(sgde); | |
2579 | } | |
2580 | ||
7f86059a JS |
2581 | if (protgroup_offset) { |
2582 | /* update the reference tag */ | |
2583 | reftag += protgrp_blks; | |
acd6859b | 2584 | sgl++; |
7f86059a JS |
2585 | continue; |
2586 | } | |
2587 | ||
e2a0a9d6 JS |
2588 | /* are we done ? */ |
2589 | if (curr_prot == protcnt) { | |
acd6859b | 2590 | bf_set(lpfc_sli4_sge_last, sgl, 1); |
e2a0a9d6 JS |
2591 | alldone = 1; |
2592 | } else if (curr_prot < protcnt) { | |
2593 | /* advance to next prot buffer */ | |
2594 | sgpe = sg_next(sgpe); | |
acd6859b | 2595 | sgl++; |
e2a0a9d6 JS |
2596 | |
2597 | /* update the reference tag */ | |
2598 | reftag += protgrp_blks; | |
2599 | } else { | |
2600 | /* if we're here, we have a bug */ | |
6a9c52cf | 2601 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, |
acd6859b | 2602 | "9085 BLKGRD: bug in %s\n", __func__); |
e2a0a9d6 JS |
2603 | } |
2604 | ||
2605 | } while (!alldone); | |
acd6859b | 2606 | |
e2a0a9d6 JS |
2607 | out: |
2608 | ||
acd6859b | 2609 | return num_sge; |
e2a0a9d6 | 2610 | } |
7f86059a | 2611 | |
acd6859b JS |
2612 | /** |
2613 | * lpfc_prot_group_type - Get prtotection group type of SCSI command | |
2614 | * @phba: The Hba for which this call is being executed. | |
2615 | * @sc: pointer to scsi command we're working on | |
2616 | * | |
e2a0a9d6 JS |
2617 | * Given a SCSI command that supports DIF, determine composition of protection |
2618 | * groups involved in setting up buffer lists | |
2619 | * | |
acd6859b JS |
2620 | * Returns: Protection group type (with or without DIF) |
2621 | * | |
2622 | **/ | |
e2a0a9d6 JS |
2623 | static int |
2624 | lpfc_prot_group_type(struct lpfc_hba *phba, struct scsi_cmnd *sc) | |
2625 | { | |
2626 | int ret = LPFC_PG_TYPE_INVALID; | |
2627 | unsigned char op = scsi_get_prot_op(sc); | |
2628 | ||
2629 | switch (op) { | |
2630 | case SCSI_PROT_READ_STRIP: | |
2631 | case SCSI_PROT_WRITE_INSERT: | |
2632 | ret = LPFC_PG_TYPE_NO_DIF; | |
2633 | break; | |
2634 | case SCSI_PROT_READ_INSERT: | |
2635 | case SCSI_PROT_WRITE_STRIP: | |
2636 | case SCSI_PROT_READ_PASS: | |
2637 | case SCSI_PROT_WRITE_PASS: | |
e2a0a9d6 JS |
2638 | ret = LPFC_PG_TYPE_DIF_BUF; |
2639 | break; | |
2640 | default: | |
2641 | lpfc_printf_log(phba, KERN_ERR, LOG_FCP, | |
2642 | "9021 Unsupported protection op:%d\n", op); | |
2643 | break; | |
2644 | } | |
2645 | ||
2646 | return ret; | |
2647 | } | |
2648 | ||
acd6859b JS |
2649 | /** |
2650 | * lpfc_bg_scsi_prep_dma_buf_s3 - DMA mapping for scsi buffer to SLI3 IF spec | |
2651 | * @phba: The Hba for which this call is being executed. | |
2652 | * @lpfc_cmd: The scsi buffer which is going to be prep'ed. | |
2653 | * | |
e2a0a9d6 JS |
2654 | * This is the protection/DIF aware version of |
2655 | * lpfc_scsi_prep_dma_buf(). It may be a good idea to combine the | |
2656 | * two functions eventually, but for now, it's here | |
acd6859b | 2657 | **/ |
e2a0a9d6 | 2658 | static int |
acd6859b | 2659 | lpfc_bg_scsi_prep_dma_buf_s3(struct lpfc_hba *phba, |
e2a0a9d6 JS |
2660 | struct lpfc_scsi_buf *lpfc_cmd) |
2661 | { | |
2662 | struct scsi_cmnd *scsi_cmnd = lpfc_cmd->pCmd; | |
2663 | struct fcp_cmnd *fcp_cmnd = lpfc_cmd->fcp_cmnd; | |
2664 | struct ulp_bde64 *bpl = lpfc_cmd->fcp_bpl; | |
2665 | IOCB_t *iocb_cmd = &lpfc_cmd->cur_iocbq.iocb; | |
2666 | uint32_t num_bde = 0; | |
2667 | int datasegcnt, protsegcnt, datadir = scsi_cmnd->sc_data_direction; | |
2668 | int prot_group_type = 0; | |
2669 | int diflen, fcpdl; | |
2670 | unsigned blksize; | |
2671 | ||
2672 | /* | |
2673 | * Start the lpfc command prep by bumping the bpl beyond fcp_cmnd | |
2674 | * fcp_rsp regions to the first data bde entry | |
2675 | */ | |
2676 | bpl += 2; | |
2677 | if (scsi_sg_count(scsi_cmnd)) { | |
2678 | /* | |
2679 | * The driver stores the segment count returned from pci_map_sg | |
2680 | * because this a count of dma-mappings used to map the use_sg | |
2681 | * pages. They are not guaranteed to be the same for those | |
2682 | * architectures that implement an IOMMU. | |
2683 | */ | |
2684 | datasegcnt = dma_map_sg(&phba->pcidev->dev, | |
2685 | scsi_sglist(scsi_cmnd), | |
2686 | scsi_sg_count(scsi_cmnd), datadir); | |
2687 | if (unlikely(!datasegcnt)) | |
2688 | return 1; | |
2689 | ||
2690 | lpfc_cmd->seg_cnt = datasegcnt; | |
2691 | if (lpfc_cmd->seg_cnt > phba->cfg_sg_seg_cnt) { | |
6a9c52cf JS |
2692 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, |
2693 | "9067 BLKGRD: %s: Too many sg segments" | |
2694 | " from dma_map_sg. Config %d, seg_cnt" | |
2695 | " %d\n", | |
e2a0a9d6 JS |
2696 | __func__, phba->cfg_sg_seg_cnt, |
2697 | lpfc_cmd->seg_cnt); | |
2698 | scsi_dma_unmap(scsi_cmnd); | |
2699 | return 1; | |
2700 | } | |
2701 | ||
2702 | prot_group_type = lpfc_prot_group_type(phba, scsi_cmnd); | |
2703 | ||
2704 | switch (prot_group_type) { | |
2705 | case LPFC_PG_TYPE_NO_DIF: | |
2706 | num_bde = lpfc_bg_setup_bpl(phba, scsi_cmnd, bpl, | |
2707 | datasegcnt); | |
c9404c9c | 2708 | /* we should have 2 or more entries in buffer list */ |
e2a0a9d6 JS |
2709 | if (num_bde < 2) |
2710 | goto err; | |
2711 | break; | |
2712 | case LPFC_PG_TYPE_DIF_BUF:{ | |
2713 | /* | |
2714 | * This type indicates that protection buffers are | |
2715 | * passed to the driver, so that needs to be prepared | |
2716 | * for DMA | |
2717 | */ | |
2718 | protsegcnt = dma_map_sg(&phba->pcidev->dev, | |
2719 | scsi_prot_sglist(scsi_cmnd), | |
2720 | scsi_prot_sg_count(scsi_cmnd), datadir); | |
2721 | if (unlikely(!protsegcnt)) { | |
2722 | scsi_dma_unmap(scsi_cmnd); | |
2723 | return 1; | |
2724 | } | |
2725 | ||
2726 | lpfc_cmd->prot_seg_cnt = protsegcnt; | |
2727 | if (lpfc_cmd->prot_seg_cnt | |
2728 | > phba->cfg_prot_sg_seg_cnt) { | |
6a9c52cf JS |
2729 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, |
2730 | "9068 BLKGRD: %s: Too many prot sg " | |
2731 | "segments from dma_map_sg. Config %d," | |
e2a0a9d6 JS |
2732 | "prot_seg_cnt %d\n", __func__, |
2733 | phba->cfg_prot_sg_seg_cnt, | |
2734 | lpfc_cmd->prot_seg_cnt); | |
2735 | dma_unmap_sg(&phba->pcidev->dev, | |
2736 | scsi_prot_sglist(scsi_cmnd), | |
2737 | scsi_prot_sg_count(scsi_cmnd), | |
2738 | datadir); | |
2739 | scsi_dma_unmap(scsi_cmnd); | |
2740 | return 1; | |
2741 | } | |
2742 | ||
2743 | num_bde = lpfc_bg_setup_bpl_prot(phba, scsi_cmnd, bpl, | |
2744 | datasegcnt, protsegcnt); | |
c9404c9c | 2745 | /* we should have 3 or more entries in buffer list */ |
e2a0a9d6 JS |
2746 | if (num_bde < 3) |
2747 | goto err; | |
2748 | break; | |
2749 | } | |
2750 | case LPFC_PG_TYPE_INVALID: | |
2751 | default: | |
2752 | lpfc_printf_log(phba, KERN_ERR, LOG_FCP, | |
2753 | "9022 Unexpected protection group %i\n", | |
2754 | prot_group_type); | |
2755 | return 1; | |
2756 | } | |
2757 | } | |
2758 | ||
2759 | /* | |
2760 | * Finish initializing those IOCB fields that are dependent on the | |
2761 | * scsi_cmnd request_buffer. Note that the bdeSize is explicitly | |
2762 | * reinitialized since all iocb memory resources are used many times | |
2763 | * for transmit, receive, and continuation bpl's. | |
2764 | */ | |
2765 | iocb_cmd->un.fcpi64.bdl.bdeSize = (2 * sizeof(struct ulp_bde64)); | |
2766 | iocb_cmd->un.fcpi64.bdl.bdeSize += (num_bde * sizeof(struct ulp_bde64)); | |
2767 | iocb_cmd->ulpBdeCount = 1; | |
2768 | iocb_cmd->ulpLe = 1; | |
2769 | ||
2770 | fcpdl = scsi_bufflen(scsi_cmnd); | |
2771 | ||
2772 | if (scsi_get_prot_type(scsi_cmnd) == SCSI_PROT_DIF_TYPE1) { | |
2773 | /* | |
2774 | * We are in DIF Type 1 mode | |
2775 | * Every data block has a 8 byte DIF (trailer) | |
2776 | * attached to it. Must ajust FCP data length | |
2777 | */ | |
2778 | blksize = lpfc_cmd_blksize(scsi_cmnd); | |
2779 | diflen = (fcpdl / blksize) * 8; | |
2780 | fcpdl += diflen; | |
2781 | } | |
2782 | fcp_cmnd->fcpDl = be32_to_cpu(fcpdl); | |
2783 | ||
2784 | /* | |
2785 | * Due to difference in data length between DIF/non-DIF paths, | |
2786 | * we need to set word 4 of IOCB here | |
2787 | */ | |
2788 | iocb_cmd->un.fcpi.fcpi_parm = fcpdl; | |
2789 | ||
dea3101e | 2790 | return 0; |
e2a0a9d6 JS |
2791 | err: |
2792 | lpfc_printf_log(phba, KERN_ERR, LOG_FCP, | |
2793 | "9023 Could not setup all needed BDE's" | |
2794 | "prot_group_type=%d, num_bde=%d\n", | |
2795 | prot_group_type, num_bde); | |
2796 | return 1; | |
2797 | } | |
2798 | ||
2799 | /* | |
2800 | * This function checks for BlockGuard errors detected by | |
2801 | * the HBA. In case of errors, the ASC/ASCQ fields in the | |
2802 | * sense buffer will be set accordingly, paired with | |
2803 | * ILLEGAL_REQUEST to signal to the kernel that the HBA | |
2804 | * detected corruption. | |
2805 | * | |
2806 | * Returns: | |
2807 | * 0 - No error found | |
2808 | * 1 - BlockGuard error found | |
2809 | * -1 - Internal error (bad profile, ...etc) | |
2810 | */ | |
2811 | static int | |
2812 | lpfc_parse_bg_err(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd, | |
2813 | struct lpfc_iocbq *pIocbOut) | |
2814 | { | |
2815 | struct scsi_cmnd *cmd = lpfc_cmd->pCmd; | |
2816 | struct sli3_bg_fields *bgf = &pIocbOut->iocb.unsli3.sli3_bg; | |
2817 | int ret = 0; | |
2818 | uint32_t bghm = bgf->bghm; | |
2819 | uint32_t bgstat = bgf->bgstat; | |
2820 | uint64_t failing_sector = 0; | |
2821 | ||
6a9c52cf JS |
2822 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, "9069 BLKGRD: BG ERROR in cmd" |
2823 | " 0x%x lba 0x%llx blk cnt 0x%x " | |
e2a0a9d6 | 2824 | "bgstat=0x%x bghm=0x%x\n", |
87b5c328 | 2825 | cmd->cmnd[0], (unsigned long long)scsi_get_lba(cmd), |
83096ebf | 2826 | blk_rq_sectors(cmd->request), bgstat, bghm); |
e2a0a9d6 JS |
2827 | |
2828 | spin_lock(&_dump_buf_lock); | |
2829 | if (!_dump_buf_done) { | |
6a9c52cf JS |
2830 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, "9070 BLKGRD: Saving" |
2831 | " Data for %u blocks to debugfs\n", | |
e2a0a9d6 | 2832 | (cmd->cmnd[7] << 8 | cmd->cmnd[8])); |
6a9c52cf | 2833 | lpfc_debug_save_data(phba, cmd); |
e2a0a9d6 JS |
2834 | |
2835 | /* If we have a prot sgl, save the DIF buffer */ | |
2836 | if (lpfc_prot_group_type(phba, cmd) == | |
2837 | LPFC_PG_TYPE_DIF_BUF) { | |
6a9c52cf JS |
2838 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, "9071 BLKGRD: " |
2839 | "Saving DIF for %u blocks to debugfs\n", | |
2840 | (cmd->cmnd[7] << 8 | cmd->cmnd[8])); | |
2841 | lpfc_debug_save_dif(phba, cmd); | |
e2a0a9d6 JS |
2842 | } |
2843 | ||
2844 | _dump_buf_done = 1; | |
2845 | } | |
2846 | spin_unlock(&_dump_buf_lock); | |
2847 | ||
2848 | if (lpfc_bgs_get_invalid_prof(bgstat)) { | |
2849 | cmd->result = ScsiResult(DID_ERROR, 0); | |
6a9c52cf JS |
2850 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, "9072 BLKGRD: Invalid" |
2851 | " BlockGuard profile. bgstat:0x%x\n", | |
2852 | bgstat); | |
e2a0a9d6 JS |
2853 | ret = (-1); |
2854 | goto out; | |
2855 | } | |
2856 | ||
2857 | if (lpfc_bgs_get_uninit_dif_block(bgstat)) { | |
2858 | cmd->result = ScsiResult(DID_ERROR, 0); | |
6a9c52cf JS |
2859 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, "9073 BLKGRD: " |
2860 | "Invalid BlockGuard DIF Block. bgstat:0x%x\n", | |
e2a0a9d6 JS |
2861 | bgstat); |
2862 | ret = (-1); | |
2863 | goto out; | |
2864 | } | |
2865 | ||
2866 | if (lpfc_bgs_get_guard_err(bgstat)) { | |
2867 | ret = 1; | |
2868 | ||
2869 | scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST, | |
2870 | 0x10, 0x1); | |
1c9fbafc | 2871 | cmd->result = DRIVER_SENSE << 24 |
e2a0a9d6 JS |
2872 | | ScsiResult(DID_ABORT, SAM_STAT_CHECK_CONDITION); |
2873 | phba->bg_guard_err_cnt++; | |
6a9c52cf JS |
2874 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, |
2875 | "9055 BLKGRD: guard_tag error\n"); | |
e2a0a9d6 JS |
2876 | } |
2877 | ||
2878 | if (lpfc_bgs_get_reftag_err(bgstat)) { | |
2879 | ret = 1; | |
2880 | ||
2881 | scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST, | |
2882 | 0x10, 0x3); | |
1c9fbafc | 2883 | cmd->result = DRIVER_SENSE << 24 |
e2a0a9d6 JS |
2884 | | ScsiResult(DID_ABORT, SAM_STAT_CHECK_CONDITION); |
2885 | ||
2886 | phba->bg_reftag_err_cnt++; | |
6a9c52cf JS |
2887 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, |
2888 | "9056 BLKGRD: ref_tag error\n"); | |
e2a0a9d6 JS |
2889 | } |
2890 | ||
2891 | if (lpfc_bgs_get_apptag_err(bgstat)) { | |
2892 | ret = 1; | |
2893 | ||
2894 | scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST, | |
2895 | 0x10, 0x2); | |
1c9fbafc | 2896 | cmd->result = DRIVER_SENSE << 24 |
e2a0a9d6 JS |
2897 | | ScsiResult(DID_ABORT, SAM_STAT_CHECK_CONDITION); |
2898 | ||
2899 | phba->bg_apptag_err_cnt++; | |
6a9c52cf JS |
2900 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, |
2901 | "9061 BLKGRD: app_tag error\n"); | |
e2a0a9d6 JS |
2902 | } |
2903 | ||
2904 | if (lpfc_bgs_get_hi_water_mark_present(bgstat)) { | |
2905 | /* | |
2906 | * setup sense data descriptor 0 per SPC-4 as an information | |
7c56b9fd JS |
2907 | * field, and put the failing LBA in it. |
2908 | * This code assumes there was also a guard/app/ref tag error | |
2909 | * indication. | |
e2a0a9d6 | 2910 | */ |
7c56b9fd JS |
2911 | cmd->sense_buffer[7] = 0xc; /* Additional sense length */ |
2912 | cmd->sense_buffer[8] = 0; /* Information descriptor type */ | |
2913 | cmd->sense_buffer[9] = 0xa; /* Additional descriptor length */ | |
2914 | cmd->sense_buffer[10] = 0x80; /* Validity bit */ | |
acd6859b JS |
2915 | |
2916 | /* bghm is a "on the wire" FC frame based count */ | |
2917 | switch (scsi_get_prot_op(cmd)) { | |
2918 | case SCSI_PROT_READ_INSERT: | |
2919 | case SCSI_PROT_WRITE_STRIP: | |
2920 | bghm /= cmd->device->sector_size; | |
2921 | break; | |
2922 | case SCSI_PROT_READ_STRIP: | |
2923 | case SCSI_PROT_WRITE_INSERT: | |
2924 | case SCSI_PROT_READ_PASS: | |
2925 | case SCSI_PROT_WRITE_PASS: | |
2926 | bghm /= (cmd->device->sector_size + | |
2927 | sizeof(struct scsi_dif_tuple)); | |
2928 | break; | |
2929 | } | |
e2a0a9d6 JS |
2930 | |
2931 | failing_sector = scsi_get_lba(cmd); | |
2932 | failing_sector += bghm; | |
2933 | ||
7c56b9fd JS |
2934 | /* Descriptor Information */ |
2935 | put_unaligned_be64(failing_sector, &cmd->sense_buffer[12]); | |
e2a0a9d6 JS |
2936 | } |
2937 | ||
2938 | if (!ret) { | |
2939 | /* No error was reported - problem in FW? */ | |
2940 | cmd->result = ScsiResult(DID_ERROR, 0); | |
6a9c52cf | 2941 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, |
4ac9b226 | 2942 | "9057 BLKGRD: Unknown error reported!\n"); |
e2a0a9d6 JS |
2943 | } |
2944 | ||
2945 | out: | |
2946 | return ret; | |
dea3101e | 2947 | } |
2948 | ||
da0436e9 JS |
2949 | /** |
2950 | * lpfc_scsi_prep_dma_buf_s4 - DMA mapping for scsi buffer to SLI4 IF spec | |
2951 | * @phba: The Hba for which this call is being executed. | |
2952 | * @lpfc_cmd: The scsi buffer which is going to be mapped. | |
2953 | * | |
2954 | * This routine does the pci dma mapping for scatter-gather list of scsi cmnd | |
2955 | * field of @lpfc_cmd for device with SLI-4 interface spec. | |
2956 | * | |
2957 | * Return codes: | |
6c8eea54 JS |
2958 | * 1 - Error |
2959 | * 0 - Success | |
da0436e9 JS |
2960 | **/ |
2961 | static int | |
2962 | lpfc_scsi_prep_dma_buf_s4(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd) | |
2963 | { | |
2964 | struct scsi_cmnd *scsi_cmnd = lpfc_cmd->pCmd; | |
2965 | struct scatterlist *sgel = NULL; | |
2966 | struct fcp_cmnd *fcp_cmnd = lpfc_cmd->fcp_cmnd; | |
2967 | struct sli4_sge *sgl = (struct sli4_sge *)lpfc_cmd->fcp_bpl; | |
fedd3b7b | 2968 | struct sli4_sge *first_data_sgl; |
da0436e9 JS |
2969 | IOCB_t *iocb_cmd = &lpfc_cmd->cur_iocbq.iocb; |
2970 | dma_addr_t physaddr; | |
2971 | uint32_t num_bde = 0; | |
2972 | uint32_t dma_len; | |
2973 | uint32_t dma_offset = 0; | |
2974 | int nseg; | |
fedd3b7b | 2975 | struct ulp_bde64 *bde; |
da0436e9 JS |
2976 | |
2977 | /* | |
2978 | * There are three possibilities here - use scatter-gather segment, use | |
2979 | * the single mapping, or neither. Start the lpfc command prep by | |
2980 | * bumping the bpl beyond the fcp_cmnd and fcp_rsp regions to the first | |
2981 | * data bde entry. | |
2982 | */ | |
2983 | if (scsi_sg_count(scsi_cmnd)) { | |
2984 | /* | |
2985 | * The driver stores the segment count returned from pci_map_sg | |
2986 | * because this a count of dma-mappings used to map the use_sg | |
2987 | * pages. They are not guaranteed to be the same for those | |
2988 | * architectures that implement an IOMMU. | |
2989 | */ | |
2990 | ||
2991 | nseg = scsi_dma_map(scsi_cmnd); | |
2992 | if (unlikely(!nseg)) | |
2993 | return 1; | |
2994 | sgl += 1; | |
2995 | /* clear the last flag in the fcp_rsp map entry */ | |
2996 | sgl->word2 = le32_to_cpu(sgl->word2); | |
2997 | bf_set(lpfc_sli4_sge_last, sgl, 0); | |
2998 | sgl->word2 = cpu_to_le32(sgl->word2); | |
2999 | sgl += 1; | |
fedd3b7b | 3000 | first_data_sgl = sgl; |
da0436e9 JS |
3001 | lpfc_cmd->seg_cnt = nseg; |
3002 | if (lpfc_cmd->seg_cnt > phba->cfg_sg_seg_cnt) { | |
6a9c52cf JS |
3003 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, "9074 BLKGRD:" |
3004 | " %s: Too many sg segments from " | |
3005 | "dma_map_sg. Config %d, seg_cnt %d\n", | |
3006 | __func__, phba->cfg_sg_seg_cnt, | |
da0436e9 JS |
3007 | lpfc_cmd->seg_cnt); |
3008 | scsi_dma_unmap(scsi_cmnd); | |
3009 | return 1; | |
3010 | } | |
3011 | ||
3012 | /* | |
3013 | * The driver established a maximum scatter-gather segment count | |
3014 | * during probe that limits the number of sg elements in any | |
3015 | * single scsi command. Just run through the seg_cnt and format | |
3016 | * the sge's. | |
3017 | * When using SLI-3 the driver will try to fit all the BDEs into | |
3018 | * the IOCB. If it can't then the BDEs get added to a BPL as it | |
3019 | * does for SLI-2 mode. | |
3020 | */ | |
3021 | scsi_for_each_sg(scsi_cmnd, sgel, nseg, num_bde) { | |
3022 | physaddr = sg_dma_address(sgel); | |
3023 | dma_len = sg_dma_len(sgel); | |
da0436e9 JS |
3024 | sgl->addr_lo = cpu_to_le32(putPaddrLow(physaddr)); |
3025 | sgl->addr_hi = cpu_to_le32(putPaddrHigh(physaddr)); | |
0558056c | 3026 | sgl->word2 = le32_to_cpu(sgl->word2); |
da0436e9 JS |
3027 | if ((num_bde + 1) == nseg) |
3028 | bf_set(lpfc_sli4_sge_last, sgl, 1); | |
3029 | else | |
3030 | bf_set(lpfc_sli4_sge_last, sgl, 0); | |
3031 | bf_set(lpfc_sli4_sge_offset, sgl, dma_offset); | |
f9bb2da1 | 3032 | bf_set(lpfc_sli4_sge_type, sgl, LPFC_SGE_TYPE_DATA); |
da0436e9 | 3033 | sgl->word2 = cpu_to_le32(sgl->word2); |
28baac74 | 3034 | sgl->sge_len = cpu_to_le32(dma_len); |
da0436e9 JS |
3035 | dma_offset += dma_len; |
3036 | sgl++; | |
3037 | } | |
fedd3b7b JS |
3038 | /* setup the performance hint (first data BDE) if enabled */ |
3039 | if (phba->sli3_options & LPFC_SLI4_PERFH_ENABLED) { | |
3040 | bde = (struct ulp_bde64 *) | |
3041 | &(iocb_cmd->unsli3.sli3Words[5]); | |
3042 | bde->addrLow = first_data_sgl->addr_lo; | |
3043 | bde->addrHigh = first_data_sgl->addr_hi; | |
3044 | bde->tus.f.bdeSize = | |
3045 | le32_to_cpu(first_data_sgl->sge_len); | |
3046 | bde->tus.f.bdeFlags = BUFF_TYPE_BDE_64; | |
3047 | bde->tus.w = cpu_to_le32(bde->tus.w); | |
3048 | } | |
da0436e9 JS |
3049 | } else { |
3050 | sgl += 1; | |
3051 | /* clear the last flag in the fcp_rsp map entry */ | |
3052 | sgl->word2 = le32_to_cpu(sgl->word2); | |
3053 | bf_set(lpfc_sli4_sge_last, sgl, 1); | |
3054 | sgl->word2 = cpu_to_le32(sgl->word2); | |
3055 | } | |
3056 | ||
3057 | /* | |
3058 | * Finish initializing those IOCB fields that are dependent on the | |
3059 | * scsi_cmnd request_buffer. Note that for SLI-2 the bdeSize is | |
3060 | * explicitly reinitialized. | |
3061 | * all iocb memory resources are reused. | |
3062 | */ | |
3063 | fcp_cmnd->fcpDl = cpu_to_be32(scsi_bufflen(scsi_cmnd)); | |
3064 | ||
3065 | /* | |
3066 | * Due to difference in data length between DIF/non-DIF paths, | |
3067 | * we need to set word 4 of IOCB here | |
3068 | */ | |
3069 | iocb_cmd->un.fcpi.fcpi_parm = scsi_bufflen(scsi_cmnd); | |
3070 | return 0; | |
3071 | } | |
3072 | ||
acd6859b JS |
3073 | /** |
3074 | * lpfc_bg_scsi_adjust_dl - Adjust SCSI data length for BlockGuard | |
3075 | * @phba: The Hba for which this call is being executed. | |
3076 | * @lpfc_cmd: The scsi buffer which is going to be adjusted. | |
3077 | * | |
3078 | * Adjust the data length to account for how much data | |
3079 | * is actually on the wire. | |
3080 | * | |
3081 | * returns the adjusted data length | |
3082 | **/ | |
3083 | static int | |
3084 | lpfc_bg_scsi_adjust_dl(struct lpfc_hba *phba, | |
3085 | struct lpfc_scsi_buf *lpfc_cmd) | |
3086 | { | |
3087 | struct scsi_cmnd *sc = lpfc_cmd->pCmd; | |
3088 | int diflen, fcpdl; | |
3089 | unsigned blksize; | |
3090 | ||
3091 | fcpdl = scsi_bufflen(sc); | |
3092 | ||
3093 | /* Check if there is protection data on the wire */ | |
3094 | if (sc->sc_data_direction == DMA_FROM_DEVICE) { | |
3095 | /* Read */ | |
3096 | if (scsi_get_prot_op(sc) == SCSI_PROT_READ_INSERT) | |
3097 | return fcpdl; | |
3098 | ||
3099 | } else { | |
3100 | /* Write */ | |
3101 | if (scsi_get_prot_op(sc) == SCSI_PROT_WRITE_STRIP) | |
3102 | return fcpdl; | |
3103 | } | |
3104 | ||
3105 | /* If protection data on the wire, adjust the count accordingly */ | |
3106 | blksize = lpfc_cmd_blksize(sc); | |
3107 | diflen = (fcpdl / blksize) * 8; | |
3108 | fcpdl += diflen; | |
3109 | return fcpdl; | |
3110 | } | |
3111 | ||
3112 | /** | |
3113 | * lpfc_bg_scsi_prep_dma_buf_s4 - DMA mapping for scsi buffer to SLI4 IF spec | |
3114 | * @phba: The Hba for which this call is being executed. | |
3115 | * @lpfc_cmd: The scsi buffer which is going to be mapped. | |
3116 | * | |
3117 | * This is the protection/DIF aware version of | |
3118 | * lpfc_scsi_prep_dma_buf(). It may be a good idea to combine the | |
3119 | * two functions eventually, but for now, it's here | |
3120 | **/ | |
3121 | static int | |
3122 | lpfc_bg_scsi_prep_dma_buf_s4(struct lpfc_hba *phba, | |
3123 | struct lpfc_scsi_buf *lpfc_cmd) | |
3124 | { | |
3125 | struct scsi_cmnd *scsi_cmnd = lpfc_cmd->pCmd; | |
3126 | struct fcp_cmnd *fcp_cmnd = lpfc_cmd->fcp_cmnd; | |
3127 | struct sli4_sge *sgl = (struct sli4_sge *)(lpfc_cmd->fcp_bpl); | |
3128 | IOCB_t *iocb_cmd = &lpfc_cmd->cur_iocbq.iocb; | |
3129 | uint32_t num_bde = 0; | |
3130 | int datasegcnt, protsegcnt, datadir = scsi_cmnd->sc_data_direction; | |
3131 | int prot_group_type = 0; | |
3132 | int fcpdl; | |
3133 | ||
3134 | /* | |
3135 | * Start the lpfc command prep by bumping the sgl beyond fcp_cmnd | |
3136 | * fcp_rsp regions to the first data bde entry | |
3137 | */ | |
3138 | if (scsi_sg_count(scsi_cmnd)) { | |
3139 | /* | |
3140 | * The driver stores the segment count returned from pci_map_sg | |
3141 | * because this a count of dma-mappings used to map the use_sg | |
3142 | * pages. They are not guaranteed to be the same for those | |
3143 | * architectures that implement an IOMMU. | |
3144 | */ | |
3145 | datasegcnt = dma_map_sg(&phba->pcidev->dev, | |
3146 | scsi_sglist(scsi_cmnd), | |
3147 | scsi_sg_count(scsi_cmnd), datadir); | |
3148 | if (unlikely(!datasegcnt)) | |
3149 | return 1; | |
3150 | ||
3151 | sgl += 1; | |
3152 | /* clear the last flag in the fcp_rsp map entry */ | |
3153 | sgl->word2 = le32_to_cpu(sgl->word2); | |
3154 | bf_set(lpfc_sli4_sge_last, sgl, 0); | |
3155 | sgl->word2 = cpu_to_le32(sgl->word2); | |
3156 | ||
3157 | sgl += 1; | |
3158 | lpfc_cmd->seg_cnt = datasegcnt; | |
3159 | if (lpfc_cmd->seg_cnt > phba->cfg_sg_seg_cnt) { | |
3160 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, | |
3161 | "9087 BLKGRD: %s: Too many sg segments" | |
3162 | " from dma_map_sg. Config %d, seg_cnt" | |
3163 | " %d\n", | |
3164 | __func__, phba->cfg_sg_seg_cnt, | |
3165 | lpfc_cmd->seg_cnt); | |
3166 | scsi_dma_unmap(scsi_cmnd); | |
3167 | return 1; | |
3168 | } | |
3169 | ||
3170 | prot_group_type = lpfc_prot_group_type(phba, scsi_cmnd); | |
3171 | ||
3172 | switch (prot_group_type) { | |
3173 | case LPFC_PG_TYPE_NO_DIF: | |
3174 | num_bde = lpfc_bg_setup_sgl(phba, scsi_cmnd, sgl, | |
3175 | datasegcnt); | |
3176 | /* we should have 2 or more entries in buffer list */ | |
3177 | if (num_bde < 2) | |
3178 | goto err; | |
3179 | break; | |
3180 | case LPFC_PG_TYPE_DIF_BUF:{ | |
3181 | /* | |
3182 | * This type indicates that protection buffers are | |
3183 | * passed to the driver, so that needs to be prepared | |
3184 | * for DMA | |
3185 | */ | |
3186 | protsegcnt = dma_map_sg(&phba->pcidev->dev, | |
3187 | scsi_prot_sglist(scsi_cmnd), | |
3188 | scsi_prot_sg_count(scsi_cmnd), datadir); | |
3189 | if (unlikely(!protsegcnt)) { | |
3190 | scsi_dma_unmap(scsi_cmnd); | |
3191 | return 1; | |
3192 | } | |
3193 | ||
3194 | lpfc_cmd->prot_seg_cnt = protsegcnt; | |
3195 | if (lpfc_cmd->prot_seg_cnt | |
3196 | > phba->cfg_prot_sg_seg_cnt) { | |
3197 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, | |
3198 | "9088 BLKGRD: %s: Too many prot sg " | |
3199 | "segments from dma_map_sg. Config %d," | |
3200 | "prot_seg_cnt %d\n", __func__, | |
3201 | phba->cfg_prot_sg_seg_cnt, | |
3202 | lpfc_cmd->prot_seg_cnt); | |
3203 | dma_unmap_sg(&phba->pcidev->dev, | |
3204 | scsi_prot_sglist(scsi_cmnd), | |
3205 | scsi_prot_sg_count(scsi_cmnd), | |
3206 | datadir); | |
3207 | scsi_dma_unmap(scsi_cmnd); | |
3208 | return 1; | |
3209 | } | |
3210 | ||
3211 | num_bde = lpfc_bg_setup_sgl_prot(phba, scsi_cmnd, sgl, | |
3212 | datasegcnt, protsegcnt); | |
3213 | /* we should have 3 or more entries in buffer list */ | |
3214 | if (num_bde < 3) | |
3215 | goto err; | |
3216 | break; | |
3217 | } | |
3218 | case LPFC_PG_TYPE_INVALID: | |
3219 | default: | |
3220 | lpfc_printf_log(phba, KERN_ERR, LOG_FCP, | |
3221 | "9083 Unexpected protection group %i\n", | |
3222 | prot_group_type); | |
3223 | return 1; | |
3224 | } | |
3225 | } | |
3226 | ||
3227 | fcpdl = lpfc_bg_scsi_adjust_dl(phba, lpfc_cmd); | |
3228 | ||
3229 | fcp_cmnd->fcpDl = be32_to_cpu(fcpdl); | |
3230 | ||
3231 | /* | |
3232 | * Due to difference in data length between DIF/non-DIF paths, | |
3233 | * we need to set word 4 of IOCB here | |
3234 | */ | |
3235 | iocb_cmd->un.fcpi.fcpi_parm = fcpdl; | |
3236 | lpfc_cmd->cur_iocbq.iocb_flag |= LPFC_IO_DIF; | |
3237 | ||
3238 | return 0; | |
3239 | err: | |
3240 | lpfc_printf_log(phba, KERN_ERR, LOG_FCP, | |
3241 | "9084 Could not setup all needed BDE's" | |
3242 | "prot_group_type=%d, num_bde=%d\n", | |
3243 | prot_group_type, num_bde); | |
3244 | return 1; | |
3245 | } | |
3246 | ||
3772a991 JS |
3247 | /** |
3248 | * lpfc_scsi_prep_dma_buf - Wrapper function for DMA mapping of scsi buffer | |
3249 | * @phba: The Hba for which this call is being executed. | |
3250 | * @lpfc_cmd: The scsi buffer which is going to be mapped. | |
3251 | * | |
3252 | * This routine wraps the actual DMA mapping function pointer from the | |
3253 | * lpfc_hba struct. | |
3254 | * | |
3255 | * Return codes: | |
6c8eea54 JS |
3256 | * 1 - Error |
3257 | * 0 - Success | |
3772a991 JS |
3258 | **/ |
3259 | static inline int | |
3260 | lpfc_scsi_prep_dma_buf(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd) | |
3261 | { | |
3262 | return phba->lpfc_scsi_prep_dma_buf(phba, lpfc_cmd); | |
3263 | } | |
3264 | ||
acd6859b JS |
3265 | /** |
3266 | * lpfc_bg_scsi_prep_dma_buf - Wrapper function for DMA mapping of scsi buffer | |
3267 | * using BlockGuard. | |
3268 | * @phba: The Hba for which this call is being executed. | |
3269 | * @lpfc_cmd: The scsi buffer which is going to be mapped. | |
3270 | * | |
3271 | * This routine wraps the actual DMA mapping function pointer from the | |
3272 | * lpfc_hba struct. | |
3273 | * | |
3274 | * Return codes: | |
3275 | * 1 - Error | |
3276 | * 0 - Success | |
3277 | **/ | |
3278 | static inline int | |
3279 | lpfc_bg_scsi_prep_dma_buf(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd) | |
3280 | { | |
3281 | return phba->lpfc_bg_scsi_prep_dma_buf(phba, lpfc_cmd); | |
3282 | } | |
3283 | ||
ea2151b4 | 3284 | /** |
3621a710 | 3285 | * lpfc_send_scsi_error_event - Posts an event when there is SCSI error |
ea2151b4 JS |
3286 | * @phba: Pointer to hba context object. |
3287 | * @vport: Pointer to vport object. | |
3288 | * @lpfc_cmd: Pointer to lpfc scsi command which reported the error. | |
3289 | * @rsp_iocb: Pointer to response iocb object which reported error. | |
3290 | * | |
3291 | * This function posts an event when there is a SCSI command reporting | |
3292 | * error from the scsi device. | |
3293 | **/ | |
3294 | static void | |
3295 | lpfc_send_scsi_error_event(struct lpfc_hba *phba, struct lpfc_vport *vport, | |
3296 | struct lpfc_scsi_buf *lpfc_cmd, struct lpfc_iocbq *rsp_iocb) { | |
3297 | struct scsi_cmnd *cmnd = lpfc_cmd->pCmd; | |
3298 | struct fcp_rsp *fcprsp = lpfc_cmd->fcp_rsp; | |
3299 | uint32_t resp_info = fcprsp->rspStatus2; | |
3300 | uint32_t scsi_status = fcprsp->rspStatus3; | |
3301 | uint32_t fcpi_parm = rsp_iocb->iocb.un.fcpi.fcpi_parm; | |
3302 | struct lpfc_fast_path_event *fast_path_evt = NULL; | |
3303 | struct lpfc_nodelist *pnode = lpfc_cmd->rdata->pnode; | |
3304 | unsigned long flags; | |
3305 | ||
5989b8d4 JS |
3306 | if (!pnode || !NLP_CHK_NODE_ACT(pnode)) |
3307 | return; | |
3308 | ||
ea2151b4 JS |
3309 | /* If there is queuefull or busy condition send a scsi event */ |
3310 | if ((cmnd->result == SAM_STAT_TASK_SET_FULL) || | |
3311 | (cmnd->result == SAM_STAT_BUSY)) { | |
3312 | fast_path_evt = lpfc_alloc_fast_evt(phba); | |
3313 | if (!fast_path_evt) | |
3314 | return; | |
3315 | fast_path_evt->un.scsi_evt.event_type = | |
3316 | FC_REG_SCSI_EVENT; | |
3317 | fast_path_evt->un.scsi_evt.subcategory = | |
3318 | (cmnd->result == SAM_STAT_TASK_SET_FULL) ? | |
3319 | LPFC_EVENT_QFULL : LPFC_EVENT_DEVBSY; | |
3320 | fast_path_evt->un.scsi_evt.lun = cmnd->device->lun; | |
3321 | memcpy(&fast_path_evt->un.scsi_evt.wwpn, | |
3322 | &pnode->nlp_portname, sizeof(struct lpfc_name)); | |
3323 | memcpy(&fast_path_evt->un.scsi_evt.wwnn, | |
3324 | &pnode->nlp_nodename, sizeof(struct lpfc_name)); | |
3325 | } else if ((resp_info & SNS_LEN_VALID) && fcprsp->rspSnsLen && | |
3326 | ((cmnd->cmnd[0] == READ_10) || (cmnd->cmnd[0] == WRITE_10))) { | |
3327 | fast_path_evt = lpfc_alloc_fast_evt(phba); | |
3328 | if (!fast_path_evt) | |
3329 | return; | |
3330 | fast_path_evt->un.check_cond_evt.scsi_event.event_type = | |
3331 | FC_REG_SCSI_EVENT; | |
3332 | fast_path_evt->un.check_cond_evt.scsi_event.subcategory = | |
3333 | LPFC_EVENT_CHECK_COND; | |
3334 | fast_path_evt->un.check_cond_evt.scsi_event.lun = | |
3335 | cmnd->device->lun; | |
3336 | memcpy(&fast_path_evt->un.check_cond_evt.scsi_event.wwpn, | |
3337 | &pnode->nlp_portname, sizeof(struct lpfc_name)); | |
3338 | memcpy(&fast_path_evt->un.check_cond_evt.scsi_event.wwnn, | |
3339 | &pnode->nlp_nodename, sizeof(struct lpfc_name)); | |
3340 | fast_path_evt->un.check_cond_evt.sense_key = | |
3341 | cmnd->sense_buffer[2] & 0xf; | |
3342 | fast_path_evt->un.check_cond_evt.asc = cmnd->sense_buffer[12]; | |
3343 | fast_path_evt->un.check_cond_evt.ascq = cmnd->sense_buffer[13]; | |
3344 | } else if ((cmnd->sc_data_direction == DMA_FROM_DEVICE) && | |
3345 | fcpi_parm && | |
3346 | ((be32_to_cpu(fcprsp->rspResId) != fcpi_parm) || | |
3347 | ((scsi_status == SAM_STAT_GOOD) && | |
3348 | !(resp_info & (RESID_UNDER | RESID_OVER))))) { | |
3349 | /* | |
3350 | * If status is good or resid does not match with fcp_param and | |
3351 | * there is valid fcpi_parm, then there is a read_check error | |
3352 | */ | |
3353 | fast_path_evt = lpfc_alloc_fast_evt(phba); | |
3354 | if (!fast_path_evt) | |
3355 | return; | |
3356 | fast_path_evt->un.read_check_error.header.event_type = | |
3357 | FC_REG_FABRIC_EVENT; | |
3358 | fast_path_evt->un.read_check_error.header.subcategory = | |
3359 | LPFC_EVENT_FCPRDCHKERR; | |
3360 | memcpy(&fast_path_evt->un.read_check_error.header.wwpn, | |
3361 | &pnode->nlp_portname, sizeof(struct lpfc_name)); | |
3362 | memcpy(&fast_path_evt->un.read_check_error.header.wwnn, | |
3363 | &pnode->nlp_nodename, sizeof(struct lpfc_name)); | |
3364 | fast_path_evt->un.read_check_error.lun = cmnd->device->lun; | |
3365 | fast_path_evt->un.read_check_error.opcode = cmnd->cmnd[0]; | |
3366 | fast_path_evt->un.read_check_error.fcpiparam = | |
3367 | fcpi_parm; | |
3368 | } else | |
3369 | return; | |
3370 | ||
3371 | fast_path_evt->vport = vport; | |
3372 | spin_lock_irqsave(&phba->hbalock, flags); | |
3373 | list_add_tail(&fast_path_evt->work_evt.evt_listp, &phba->work_list); | |
3374 | spin_unlock_irqrestore(&phba->hbalock, flags); | |
3375 | lpfc_worker_wake_up(phba); | |
3376 | return; | |
3377 | } | |
9bad7671 JS |
3378 | |
3379 | /** | |
f1126688 | 3380 | * lpfc_scsi_unprep_dma_buf - Un-map DMA mapping of SG-list for dev |
3772a991 | 3381 | * @phba: The HBA for which this call is being executed. |
9bad7671 JS |
3382 | * @psb: The scsi buffer which is going to be un-mapped. |
3383 | * | |
3384 | * This routine does DMA un-mapping of scatter gather list of scsi command | |
3772a991 | 3385 | * field of @lpfc_cmd for device with SLI-3 interface spec. |
9bad7671 | 3386 | **/ |
bcf4dbfa | 3387 | static void |
f1126688 | 3388 | lpfc_scsi_unprep_dma_buf(struct lpfc_hba *phba, struct lpfc_scsi_buf *psb) |
bcf4dbfa JS |
3389 | { |
3390 | /* | |
3391 | * There are only two special cases to consider. (1) the scsi command | |
3392 | * requested scatter-gather usage or (2) the scsi command allocated | |
3393 | * a request buffer, but did not request use_sg. There is a third | |
3394 | * case, but it does not require resource deallocation. | |
3395 | */ | |
a0b4f78f FT |
3396 | if (psb->seg_cnt > 0) |
3397 | scsi_dma_unmap(psb->pCmd); | |
e2a0a9d6 JS |
3398 | if (psb->prot_seg_cnt > 0) |
3399 | dma_unmap_sg(&phba->pcidev->dev, scsi_prot_sglist(psb->pCmd), | |
3400 | scsi_prot_sg_count(psb->pCmd), | |
3401 | psb->pCmd->sc_data_direction); | |
bcf4dbfa JS |
3402 | } |
3403 | ||
9bad7671 | 3404 | /** |
3621a710 | 3405 | * lpfc_handler_fcp_err - FCP response handler |
9bad7671 JS |
3406 | * @vport: The virtual port for which this call is being executed. |
3407 | * @lpfc_cmd: Pointer to lpfc_scsi_buf data structure. | |
3408 | * @rsp_iocb: The response IOCB which contains FCP error. | |
3409 | * | |
3410 | * This routine is called to process response IOCB with status field | |
3411 | * IOSTAT_FCP_RSP_ERROR. This routine sets result field of scsi command | |
3412 | * based upon SCSI and FCP error. | |
3413 | **/ | |
dea3101e | 3414 | static void |
2e0fef85 JS |
3415 | lpfc_handle_fcp_err(struct lpfc_vport *vport, struct lpfc_scsi_buf *lpfc_cmd, |
3416 | struct lpfc_iocbq *rsp_iocb) | |
dea3101e | 3417 | { |
3418 | struct scsi_cmnd *cmnd = lpfc_cmd->pCmd; | |
3419 | struct fcp_cmnd *fcpcmd = lpfc_cmd->fcp_cmnd; | |
3420 | struct fcp_rsp *fcprsp = lpfc_cmd->fcp_rsp; | |
7054a606 | 3421 | uint32_t fcpi_parm = rsp_iocb->iocb.un.fcpi.fcpi_parm; |
dea3101e | 3422 | uint32_t resp_info = fcprsp->rspStatus2; |
3423 | uint32_t scsi_status = fcprsp->rspStatus3; | |
c7743956 | 3424 | uint32_t *lp; |
dea3101e | 3425 | uint32_t host_status = DID_OK; |
3426 | uint32_t rsplen = 0; | |
c7743956 | 3427 | uint32_t logit = LOG_FCP | LOG_FCP_ERROR; |
dea3101e | 3428 | |
ea2151b4 | 3429 | |
dea3101e | 3430 | /* |
3431 | * If this is a task management command, there is no | |
3432 | * scsi packet associated with this lpfc_cmd. The driver | |
3433 | * consumes it. | |
3434 | */ | |
3435 | if (fcpcmd->fcpCntl2) { | |
3436 | scsi_status = 0; | |
3437 | goto out; | |
3438 | } | |
3439 | ||
6a9c52cf JS |
3440 | if (resp_info & RSP_LEN_VALID) { |
3441 | rsplen = be32_to_cpu(fcprsp->rspRspLen); | |
e40a02c1 | 3442 | if (rsplen != 0 && rsplen != 4 && rsplen != 8) { |
6a9c52cf JS |
3443 | lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, |
3444 | "2719 Invalid response length: " | |
3445 | "tgt x%x lun x%x cmnd x%x rsplen x%x\n", | |
3446 | cmnd->device->id, | |
3447 | cmnd->device->lun, cmnd->cmnd[0], | |
3448 | rsplen); | |
3449 | host_status = DID_ERROR; | |
3450 | goto out; | |
3451 | } | |
e40a02c1 JS |
3452 | if (fcprsp->rspInfo3 != RSP_NO_FAILURE) { |
3453 | lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, | |
3454 | "2757 Protocol failure detected during " | |
3455 | "processing of FCP I/O op: " | |
3456 | "tgt x%x lun x%x cmnd x%x rspInfo3 x%x\n", | |
3457 | cmnd->device->id, | |
3458 | cmnd->device->lun, cmnd->cmnd[0], | |
3459 | fcprsp->rspInfo3); | |
3460 | host_status = DID_ERROR; | |
3461 | goto out; | |
3462 | } | |
6a9c52cf JS |
3463 | } |
3464 | ||
c7743956 JS |
3465 | if ((resp_info & SNS_LEN_VALID) && fcprsp->rspSnsLen) { |
3466 | uint32_t snslen = be32_to_cpu(fcprsp->rspSnsLen); | |
3467 | if (snslen > SCSI_SENSE_BUFFERSIZE) | |
3468 | snslen = SCSI_SENSE_BUFFERSIZE; | |
3469 | ||
3470 | if (resp_info & RSP_LEN_VALID) | |
3471 | rsplen = be32_to_cpu(fcprsp->rspRspLen); | |
3472 | memcpy(cmnd->sense_buffer, &fcprsp->rspInfo0 + rsplen, snslen); | |
3473 | } | |
3474 | lp = (uint32_t *)cmnd->sense_buffer; | |
3475 | ||
73d91e50 JS |
3476 | if (!scsi_status && (resp_info & RESID_UNDER) && |
3477 | vport->cfg_log_verbose & LOG_FCP_UNDER) | |
3478 | logit = LOG_FCP_UNDER; | |
c7743956 | 3479 | |
e8b62011 | 3480 | lpfc_printf_vlog(vport, KERN_WARNING, logit, |
e2a0a9d6 | 3481 | "9024 FCP command x%x failed: x%x SNS x%x x%x " |
e8b62011 JS |
3482 | "Data: x%x x%x x%x x%x x%x\n", |
3483 | cmnd->cmnd[0], scsi_status, | |
3484 | be32_to_cpu(*lp), be32_to_cpu(*(lp + 3)), resp_info, | |
3485 | be32_to_cpu(fcprsp->rspResId), | |
3486 | be32_to_cpu(fcprsp->rspSnsLen), | |
3487 | be32_to_cpu(fcprsp->rspRspLen), | |
3488 | fcprsp->rspInfo3); | |
dea3101e | 3489 | |
a0b4f78f | 3490 | scsi_set_resid(cmnd, 0); |
dea3101e | 3491 | if (resp_info & RESID_UNDER) { |
a0b4f78f | 3492 | scsi_set_resid(cmnd, be32_to_cpu(fcprsp->rspResId)); |
dea3101e | 3493 | |
73d91e50 | 3494 | lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP_UNDER, |
e2a0a9d6 | 3495 | "9025 FCP Read Underrun, expected %d, " |
e8b62011 JS |
3496 | "residual %d Data: x%x x%x x%x\n", |
3497 | be32_to_cpu(fcpcmd->fcpDl), | |
3498 | scsi_get_resid(cmnd), fcpi_parm, cmnd->cmnd[0], | |
3499 | cmnd->underflow); | |
dea3101e | 3500 | |
7054a606 JS |
3501 | /* |
3502 | * If there is an under run check if under run reported by | |
3503 | * storage array is same as the under run reported by HBA. | |
3504 | * If this is not same, there is a dropped frame. | |
3505 | */ | |
3506 | if ((cmnd->sc_data_direction == DMA_FROM_DEVICE) && | |
3507 | fcpi_parm && | |
a0b4f78f | 3508 | (scsi_get_resid(cmnd) != fcpi_parm)) { |
e8b62011 JS |
3509 | lpfc_printf_vlog(vport, KERN_WARNING, |
3510 | LOG_FCP | LOG_FCP_ERROR, | |
e2a0a9d6 | 3511 | "9026 FCP Read Check Error " |
e8b62011 JS |
3512 | "and Underrun Data: x%x x%x x%x x%x\n", |
3513 | be32_to_cpu(fcpcmd->fcpDl), | |
3514 | scsi_get_resid(cmnd), fcpi_parm, | |
3515 | cmnd->cmnd[0]); | |
a0b4f78f | 3516 | scsi_set_resid(cmnd, scsi_bufflen(cmnd)); |
7054a606 JS |
3517 | host_status = DID_ERROR; |
3518 | } | |
dea3101e | 3519 | /* |
3520 | * The cmnd->underflow is the minimum number of bytes that must | |
25985edc | 3521 | * be transferred for this command. Provided a sense condition |
dea3101e | 3522 | * is not present, make sure the actual amount transferred is at |
3523 | * least the underflow value or fail. | |
3524 | */ | |
3525 | if (!(resp_info & SNS_LEN_VALID) && | |
3526 | (scsi_status == SAM_STAT_GOOD) && | |
a0b4f78f FT |
3527 | (scsi_bufflen(cmnd) - scsi_get_resid(cmnd) |
3528 | < cmnd->underflow)) { | |
e8b62011 | 3529 | lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP, |
e2a0a9d6 | 3530 | "9027 FCP command x%x residual " |
e8b62011 JS |
3531 | "underrun converted to error " |
3532 | "Data: x%x x%x x%x\n", | |
66dbfbe6 | 3533 | cmnd->cmnd[0], scsi_bufflen(cmnd), |
e8b62011 | 3534 | scsi_get_resid(cmnd), cmnd->underflow); |
dea3101e | 3535 | host_status = DID_ERROR; |
3536 | } | |
3537 | } else if (resp_info & RESID_OVER) { | |
e8b62011 | 3538 | lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP, |
e2a0a9d6 | 3539 | "9028 FCP command x%x residual overrun error. " |
e4e74273 | 3540 | "Data: x%x x%x\n", cmnd->cmnd[0], |
e8b62011 | 3541 | scsi_bufflen(cmnd), scsi_get_resid(cmnd)); |
dea3101e | 3542 | host_status = DID_ERROR; |
3543 | ||
3544 | /* | |
3545 | * Check SLI validation that all the transfer was actually done | |
3546 | * (fcpi_parm should be zero). Apply check only to reads. | |
3547 | */ | |
eee8877e | 3548 | } else if (fcpi_parm && (cmnd->sc_data_direction == DMA_FROM_DEVICE)) { |
e8b62011 | 3549 | lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP | LOG_FCP_ERROR, |
e2a0a9d6 | 3550 | "9029 FCP Read Check Error Data: " |
eee8877e | 3551 | "x%x x%x x%x x%x x%x\n", |
e8b62011 JS |
3552 | be32_to_cpu(fcpcmd->fcpDl), |
3553 | be32_to_cpu(fcprsp->rspResId), | |
eee8877e JS |
3554 | fcpi_parm, cmnd->cmnd[0], scsi_status); |
3555 | switch (scsi_status) { | |
3556 | case SAM_STAT_GOOD: | |
3557 | case SAM_STAT_CHECK_CONDITION: | |
3558 | /* Fabric dropped a data frame. Fail any successful | |
3559 | * command in which we detected dropped frames. | |
3560 | * A status of good or some check conditions could | |
3561 | * be considered a successful command. | |
3562 | */ | |
3563 | host_status = DID_ERROR; | |
3564 | break; | |
3565 | } | |
a0b4f78f | 3566 | scsi_set_resid(cmnd, scsi_bufflen(cmnd)); |
dea3101e | 3567 | } |
3568 | ||
3569 | out: | |
3570 | cmnd->result = ScsiResult(host_status, scsi_status); | |
ea2151b4 | 3571 | lpfc_send_scsi_error_event(vport->phba, vport, lpfc_cmd, rsp_iocb); |
dea3101e | 3572 | } |
3573 | ||
9bad7671 | 3574 | /** |
3621a710 | 3575 | * lpfc_scsi_cmd_iocb_cmpl - Scsi cmnd IOCB completion routine |
9bad7671 JS |
3576 | * @phba: The Hba for which this call is being executed. |
3577 | * @pIocbIn: The command IOCBQ for the scsi cmnd. | |
3772a991 | 3578 | * @pIocbOut: The response IOCBQ for the scsi cmnd. |
9bad7671 JS |
3579 | * |
3580 | * This routine assigns scsi command result by looking into response IOCB | |
3581 | * status field appropriately. This routine handles QUEUE FULL condition as | |
3582 | * well by ramping down device queue depth. | |
3583 | **/ | |
dea3101e | 3584 | static void |
3585 | lpfc_scsi_cmd_iocb_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pIocbIn, | |
3586 | struct lpfc_iocbq *pIocbOut) | |
3587 | { | |
3588 | struct lpfc_scsi_buf *lpfc_cmd = | |
3589 | (struct lpfc_scsi_buf *) pIocbIn->context1; | |
2e0fef85 | 3590 | struct lpfc_vport *vport = pIocbIn->vport; |
dea3101e | 3591 | struct lpfc_rport_data *rdata = lpfc_cmd->rdata; |
3592 | struct lpfc_nodelist *pnode = rdata->pnode; | |
75baf696 | 3593 | struct scsi_cmnd *cmd; |
445cf4f4 | 3594 | int result; |
a257bf90 | 3595 | struct scsi_device *tmp_sdev; |
5ffc266e | 3596 | int depth; |
fa61a54e | 3597 | unsigned long flags; |
ea2151b4 | 3598 | struct lpfc_fast_path_event *fast_path_evt; |
75baf696 | 3599 | struct Scsi_Host *shost; |
a257bf90 | 3600 | uint32_t queue_depth, scsi_id; |
73d91e50 | 3601 | uint32_t logit = LOG_FCP; |
dea3101e | 3602 | |
75baf696 JS |
3603 | /* Sanity check on return of outstanding command */ |
3604 | if (!(lpfc_cmd->pCmd)) | |
3605 | return; | |
3606 | cmd = lpfc_cmd->pCmd; | |
3607 | shost = cmd->device->host; | |
3608 | ||
dea3101e | 3609 | lpfc_cmd->result = pIocbOut->iocb.un.ulpWord[4]; |
3610 | lpfc_cmd->status = pIocbOut->iocb.ulpStatus; | |
341af102 JS |
3611 | /* pick up SLI4 exhange busy status from HBA */ |
3612 | lpfc_cmd->exch_busy = pIocbOut->iocb_flag & LPFC_EXCHANGE_BUSY; | |
3613 | ||
9a6b09c0 JS |
3614 | #ifdef CONFIG_SCSI_LPFC_DEBUG_FS |
3615 | if (lpfc_cmd->prot_data_type) { | |
3616 | struct scsi_dif_tuple *src = NULL; | |
3617 | ||
3618 | src = (struct scsi_dif_tuple *)lpfc_cmd->prot_data_segment; | |
3619 | /* | |
3620 | * Used to restore any changes to protection | |
3621 | * data for error injection. | |
3622 | */ | |
3623 | switch (lpfc_cmd->prot_data_type) { | |
3624 | case LPFC_INJERR_REFTAG: | |
3625 | src->ref_tag = | |
3626 | lpfc_cmd->prot_data; | |
3627 | break; | |
3628 | case LPFC_INJERR_APPTAG: | |
3629 | src->app_tag = | |
3630 | (uint16_t)lpfc_cmd->prot_data; | |
3631 | break; | |
3632 | case LPFC_INJERR_GUARD: | |
3633 | src->guard_tag = | |
3634 | (uint16_t)lpfc_cmd->prot_data; | |
3635 | break; | |
3636 | default: | |
3637 | break; | |
3638 | } | |
3639 | ||
3640 | lpfc_cmd->prot_data = 0; | |
3641 | lpfc_cmd->prot_data_type = 0; | |
3642 | lpfc_cmd->prot_data_segment = NULL; | |
3643 | } | |
3644 | #endif | |
109f6ed0 JS |
3645 | if (pnode && NLP_CHK_NODE_ACT(pnode)) |
3646 | atomic_dec(&pnode->cmd_pending); | |
dea3101e | 3647 | |
3648 | if (lpfc_cmd->status) { | |
3649 | if (lpfc_cmd->status == IOSTAT_LOCAL_REJECT && | |
3650 | (lpfc_cmd->result & IOERR_DRVR_MASK)) | |
3651 | lpfc_cmd->status = IOSTAT_DRIVER_REJECT; | |
3652 | else if (lpfc_cmd->status >= IOSTAT_CNT) | |
3653 | lpfc_cmd->status = IOSTAT_DEFAULT; | |
73d91e50 JS |
3654 | if (lpfc_cmd->status == IOSTAT_FCP_RSP_ERROR |
3655 | && !lpfc_cmd->fcp_rsp->rspStatus3 | |
3656 | && (lpfc_cmd->fcp_rsp->rspStatus2 & RESID_UNDER) | |
3657 | && !(phba->cfg_log_verbose & LOG_FCP_UNDER)) | |
3658 | logit = 0; | |
3659 | else | |
3660 | logit = LOG_FCP | LOG_FCP_UNDER; | |
3661 | lpfc_printf_vlog(vport, KERN_WARNING, logit, | |
3662 | "9030 FCP cmd x%x failed <%d/%d> " | |
5a0d80fc JS |
3663 | "status: x%x result: x%x " |
3664 | "sid: x%x did: x%x oxid: x%x " | |
3665 | "Data: x%x x%x\n", | |
73d91e50 JS |
3666 | cmd->cmnd[0], |
3667 | cmd->device ? cmd->device->id : 0xffff, | |
3668 | cmd->device ? cmd->device->lun : 0xffff, | |
3669 | lpfc_cmd->status, lpfc_cmd->result, | |
5a0d80fc JS |
3670 | vport->fc_myDID, pnode->nlp_DID, |
3671 | phba->sli_rev == LPFC_SLI_REV4 ? | |
3672 | lpfc_cmd->cur_iocbq.sli4_xritag : 0xffff, | |
73d91e50 JS |
3673 | pIocbOut->iocb.ulpContext, |
3674 | lpfc_cmd->cur_iocbq.iocb.ulpIoTag); | |
dea3101e | 3675 | |
3676 | switch (lpfc_cmd->status) { | |
3677 | case IOSTAT_FCP_RSP_ERROR: | |
3678 | /* Call FCP RSP handler to determine result */ | |
2e0fef85 | 3679 | lpfc_handle_fcp_err(vport, lpfc_cmd, pIocbOut); |
dea3101e | 3680 | break; |
3681 | case IOSTAT_NPORT_BSY: | |
3682 | case IOSTAT_FABRIC_BSY: | |
0f1f53a7 | 3683 | cmd->result = ScsiResult(DID_TRANSPORT_DISRUPTED, 0); |
ea2151b4 JS |
3684 | fast_path_evt = lpfc_alloc_fast_evt(phba); |
3685 | if (!fast_path_evt) | |
3686 | break; | |
3687 | fast_path_evt->un.fabric_evt.event_type = | |
3688 | FC_REG_FABRIC_EVENT; | |
3689 | fast_path_evt->un.fabric_evt.subcategory = | |
3690 | (lpfc_cmd->status == IOSTAT_NPORT_BSY) ? | |
3691 | LPFC_EVENT_PORT_BUSY : LPFC_EVENT_FABRIC_BUSY; | |
3692 | if (pnode && NLP_CHK_NODE_ACT(pnode)) { | |
3693 | memcpy(&fast_path_evt->un.fabric_evt.wwpn, | |
3694 | &pnode->nlp_portname, | |
3695 | sizeof(struct lpfc_name)); | |
3696 | memcpy(&fast_path_evt->un.fabric_evt.wwnn, | |
3697 | &pnode->nlp_nodename, | |
3698 | sizeof(struct lpfc_name)); | |
3699 | } | |
3700 | fast_path_evt->vport = vport; | |
3701 | fast_path_evt->work_evt.evt = | |
3702 | LPFC_EVT_FASTPATH_MGMT_EVT; | |
3703 | spin_lock_irqsave(&phba->hbalock, flags); | |
3704 | list_add_tail(&fast_path_evt->work_evt.evt_listp, | |
3705 | &phba->work_list); | |
3706 | spin_unlock_irqrestore(&phba->hbalock, flags); | |
3707 | lpfc_worker_wake_up(phba); | |
dea3101e | 3708 | break; |
92d7f7b0 | 3709 | case IOSTAT_LOCAL_REJECT: |
1151e3ec | 3710 | case IOSTAT_REMOTE_STOP: |
ab56dc2e JS |
3711 | if (lpfc_cmd->result == IOERR_ELXSEC_KEY_UNWRAP_ERROR || |
3712 | lpfc_cmd->result == | |
3713 | IOERR_ELXSEC_KEY_UNWRAP_COMPARE_ERROR || | |
3714 | lpfc_cmd->result == IOERR_ELXSEC_CRYPTO_ERROR || | |
3715 | lpfc_cmd->result == | |
3716 | IOERR_ELXSEC_CRYPTO_COMPARE_ERROR) { | |
3717 | cmd->result = ScsiResult(DID_NO_CONNECT, 0); | |
3718 | break; | |
3719 | } | |
d7c255b2 | 3720 | if (lpfc_cmd->result == IOERR_INVALID_RPI || |
92d7f7b0 | 3721 | lpfc_cmd->result == IOERR_NO_RESOURCES || |
b92938b4 JS |
3722 | lpfc_cmd->result == IOERR_ABORT_REQUESTED || |
3723 | lpfc_cmd->result == IOERR_SLER_CMD_RCV_FAILURE) { | |
92d7f7b0 | 3724 | cmd->result = ScsiResult(DID_REQUEUE, 0); |
58da1ffb | 3725 | break; |
e2a0a9d6 | 3726 | } |
e2a0a9d6 JS |
3727 | if ((lpfc_cmd->result == IOERR_RX_DMA_FAILED || |
3728 | lpfc_cmd->result == IOERR_TX_DMA_FAILED) && | |
3729 | pIocbOut->iocb.unsli3.sli3_bg.bgstat) { | |
3730 | if (scsi_get_prot_op(cmd) != SCSI_PROT_NORMAL) { | |
3731 | /* | |
3732 | * This is a response for a BG enabled | |
3733 | * cmd. Parse BG error | |
3734 | */ | |
3735 | lpfc_parse_bg_err(phba, lpfc_cmd, | |
3736 | pIocbOut); | |
3737 | break; | |
3738 | } else { | |
3739 | lpfc_printf_vlog(vport, KERN_WARNING, | |
3740 | LOG_BG, | |
3741 | "9031 non-zero BGSTAT " | |
6a9c52cf | 3742 | "on unprotected cmd\n"); |
e2a0a9d6 JS |
3743 | } |
3744 | } | |
1151e3ec JS |
3745 | if ((lpfc_cmd->status == IOSTAT_REMOTE_STOP) |
3746 | && (phba->sli_rev == LPFC_SLI_REV4) | |
3747 | && (pnode && NLP_CHK_NODE_ACT(pnode))) { | |
3748 | /* This IO was aborted by the target, we don't | |
3749 | * know the rxid and because we did not send the | |
3750 | * ABTS we cannot generate and RRQ. | |
3751 | */ | |
3752 | lpfc_set_rrq_active(phba, pnode, | |
3753 | lpfc_cmd->cur_iocbq.sli4_xritag, | |
3754 | 0, 0); | |
3755 | } | |
e2a0a9d6 | 3756 | /* else: fall through */ |
dea3101e | 3757 | default: |
3758 | cmd->result = ScsiResult(DID_ERROR, 0); | |
3759 | break; | |
3760 | } | |
3761 | ||
58da1ffb | 3762 | if (!pnode || !NLP_CHK_NODE_ACT(pnode) |
19a7b4ae | 3763 | || (pnode->nlp_state != NLP_STE_MAPPED_NODE)) |
0f1f53a7 JS |
3764 | cmd->result = ScsiResult(DID_TRANSPORT_DISRUPTED, |
3765 | SAM_STAT_BUSY); | |
ab56dc2e | 3766 | } else |
dea3101e | 3767 | cmd->result = ScsiResult(DID_OK, 0); |
dea3101e | 3768 | |
3769 | if (cmd->result || lpfc_cmd->fcp_rsp->rspSnsLen) { | |
3770 | uint32_t *lp = (uint32_t *)cmd->sense_buffer; | |
3771 | ||
e8b62011 JS |
3772 | lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP, |
3773 | "0710 Iodone <%d/%d> cmd %p, error " | |
3774 | "x%x SNS x%x x%x Data: x%x x%x\n", | |
3775 | cmd->device->id, cmd->device->lun, cmd, | |
3776 | cmd->result, *lp, *(lp + 3), cmd->retries, | |
3777 | scsi_get_resid(cmd)); | |
dea3101e | 3778 | } |
3779 | ||
ea2151b4 | 3780 | lpfc_update_stats(phba, lpfc_cmd); |
445cf4f4 | 3781 | result = cmd->result; |
977b5a0a JS |
3782 | if (vport->cfg_max_scsicmpl_time && |
3783 | time_after(jiffies, lpfc_cmd->start_time + | |
3784 | msecs_to_jiffies(vport->cfg_max_scsicmpl_time))) { | |
a257bf90 | 3785 | spin_lock_irqsave(shost->host_lock, flags); |
109f6ed0 JS |
3786 | if (pnode && NLP_CHK_NODE_ACT(pnode)) { |
3787 | if (pnode->cmd_qdepth > | |
3788 | atomic_read(&pnode->cmd_pending) && | |
3789 | (atomic_read(&pnode->cmd_pending) > | |
3790 | LPFC_MIN_TGT_QDEPTH) && | |
3791 | ((cmd->cmnd[0] == READ_10) || | |
3792 | (cmd->cmnd[0] == WRITE_10))) | |
3793 | pnode->cmd_qdepth = | |
3794 | atomic_read(&pnode->cmd_pending); | |
3795 | ||
3796 | pnode->last_change_time = jiffies; | |
3797 | } | |
a257bf90 | 3798 | spin_unlock_irqrestore(shost->host_lock, flags); |
109f6ed0 | 3799 | } else if (pnode && NLP_CHK_NODE_ACT(pnode)) { |
7dc517df | 3800 | if ((pnode->cmd_qdepth < vport->cfg_tgt_queue_depth) && |
977b5a0a | 3801 | time_after(jiffies, pnode->last_change_time + |
109f6ed0 | 3802 | msecs_to_jiffies(LPFC_TGTQ_INTERVAL))) { |
a257bf90 | 3803 | spin_lock_irqsave(shost->host_lock, flags); |
7dc517df JS |
3804 | depth = pnode->cmd_qdepth * LPFC_TGTQ_RAMPUP_PCENT |
3805 | / 100; | |
3806 | depth = depth ? depth : 1; | |
3807 | pnode->cmd_qdepth += depth; | |
3808 | if (pnode->cmd_qdepth > vport->cfg_tgt_queue_depth) | |
3809 | pnode->cmd_qdepth = vport->cfg_tgt_queue_depth; | |
109f6ed0 | 3810 | pnode->last_change_time = jiffies; |
a257bf90 | 3811 | spin_unlock_irqrestore(shost->host_lock, flags); |
109f6ed0 | 3812 | } |
977b5a0a JS |
3813 | } |
3814 | ||
1dcb58e5 | 3815 | lpfc_scsi_unprep_dma_buf(phba, lpfc_cmd); |
a257bf90 JS |
3816 | |
3817 | /* The sdev is not guaranteed to be valid post scsi_done upcall. */ | |
3818 | queue_depth = cmd->device->queue_depth; | |
3819 | scsi_id = cmd->device->id; | |
0bd4ca25 JSEC |
3820 | cmd->scsi_done(cmd); |
3821 | ||
b808608b | 3822 | if (phba->cfg_poll & ENABLE_FCP_RING_POLLING) { |
fa61a54e JS |
3823 | /* |
3824 | * If there is a thread waiting for command completion | |
3825 | * wake up the thread. | |
3826 | */ | |
a257bf90 | 3827 | spin_lock_irqsave(shost->host_lock, flags); |
495a714c | 3828 | lpfc_cmd->pCmd = NULL; |
fa61a54e JS |
3829 | if (lpfc_cmd->waitq) |
3830 | wake_up(lpfc_cmd->waitq); | |
a257bf90 | 3831 | spin_unlock_irqrestore(shost->host_lock, flags); |
b808608b JW |
3832 | lpfc_release_scsi_buf(phba, lpfc_cmd); |
3833 | return; | |
3834 | } | |
3835 | ||
92d7f7b0 | 3836 | if (!result) |
a257bf90 | 3837 | lpfc_rampup_queue_depth(vport, queue_depth); |
92d7f7b0 | 3838 | |
445cf4f4 JSEC |
3839 | /* |
3840 | * Check for queue full. If the lun is reporting queue full, then | |
3841 | * back off the lun queue depth to prevent target overloads. | |
3842 | */ | |
58da1ffb JS |
3843 | if (result == SAM_STAT_TASK_SET_FULL && pnode && |
3844 | NLP_CHK_NODE_ACT(pnode)) { | |
a257bf90 JS |
3845 | shost_for_each_device(tmp_sdev, shost) { |
3846 | if (tmp_sdev->id != scsi_id) | |
445cf4f4 JSEC |
3847 | continue; |
3848 | depth = scsi_track_queue_full(tmp_sdev, | |
5ffc266e JS |
3849 | tmp_sdev->queue_depth-1); |
3850 | if (depth <= 0) | |
3851 | continue; | |
e8b62011 JS |
3852 | lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP, |
3853 | "0711 detected queue full - lun queue " | |
3854 | "depth adjusted to %d.\n", depth); | |
ea2151b4 | 3855 | lpfc_send_sdev_queuedepth_change_event(phba, vport, |
5ffc266e JS |
3856 | pnode, |
3857 | tmp_sdev->lun, | |
3858 | depth+1, depth); | |
445cf4f4 JSEC |
3859 | } |
3860 | } | |
3861 | ||
fa61a54e JS |
3862 | /* |
3863 | * If there is a thread waiting for command completion | |
3864 | * wake up the thread. | |
3865 | */ | |
a257bf90 | 3866 | spin_lock_irqsave(shost->host_lock, flags); |
495a714c | 3867 | lpfc_cmd->pCmd = NULL; |
fa61a54e JS |
3868 | if (lpfc_cmd->waitq) |
3869 | wake_up(lpfc_cmd->waitq); | |
a257bf90 | 3870 | spin_unlock_irqrestore(shost->host_lock, flags); |
fa61a54e | 3871 | |
0bd4ca25 | 3872 | lpfc_release_scsi_buf(phba, lpfc_cmd); |
dea3101e | 3873 | } |
3874 | ||
34b02dcd | 3875 | /** |
3621a710 | 3876 | * lpfc_fcpcmd_to_iocb - copy the fcp_cmd data into the IOCB |
34b02dcd JS |
3877 | * @data: A pointer to the immediate command data portion of the IOCB. |
3878 | * @fcp_cmnd: The FCP Command that is provided by the SCSI layer. | |
3879 | * | |
3880 | * The routine copies the entire FCP command from @fcp_cmnd to @data while | |
3881 | * byte swapping the data to big endian format for transmission on the wire. | |
3882 | **/ | |
3883 | static void | |
3884 | lpfc_fcpcmd_to_iocb(uint8_t *data, struct fcp_cmnd *fcp_cmnd) | |
3885 | { | |
3886 | int i, j; | |
3887 | for (i = 0, j = 0; i < sizeof(struct fcp_cmnd); | |
3888 | i += sizeof(uint32_t), j++) { | |
3889 | ((uint32_t *)data)[j] = cpu_to_be32(((uint32_t *)fcp_cmnd)[j]); | |
3890 | } | |
3891 | } | |
3892 | ||
9bad7671 | 3893 | /** |
f1126688 | 3894 | * lpfc_scsi_prep_cmnd - Wrapper func for convert scsi cmnd to FCP info unit |
9bad7671 JS |
3895 | * @vport: The virtual port for which this call is being executed. |
3896 | * @lpfc_cmd: The scsi command which needs to send. | |
3897 | * @pnode: Pointer to lpfc_nodelist. | |
3898 | * | |
3899 | * This routine initializes fcp_cmnd and iocb data structure from scsi command | |
3772a991 | 3900 | * to transfer for device with SLI3 interface spec. |
9bad7671 | 3901 | **/ |
dea3101e | 3902 | static void |
f1126688 | 3903 | lpfc_scsi_prep_cmnd(struct lpfc_vport *vport, struct lpfc_scsi_buf *lpfc_cmd, |
2e0fef85 | 3904 | struct lpfc_nodelist *pnode) |
dea3101e | 3905 | { |
2e0fef85 | 3906 | struct lpfc_hba *phba = vport->phba; |
dea3101e | 3907 | struct scsi_cmnd *scsi_cmnd = lpfc_cmd->pCmd; |
3908 | struct fcp_cmnd *fcp_cmnd = lpfc_cmd->fcp_cmnd; | |
3909 | IOCB_t *iocb_cmd = &lpfc_cmd->cur_iocbq.iocb; | |
3910 | struct lpfc_iocbq *piocbq = &(lpfc_cmd->cur_iocbq); | |
3911 | int datadir = scsi_cmnd->sc_data_direction; | |
7e2b19fb | 3912 | char tag[2]; |
dea3101e | 3913 | |
58da1ffb JS |
3914 | if (!pnode || !NLP_CHK_NODE_ACT(pnode)) |
3915 | return; | |
3916 | ||
dea3101e | 3917 | lpfc_cmd->fcp_rsp->rspSnsLen = 0; |
69859dc4 JSEC |
3918 | /* clear task management bits */ |
3919 | lpfc_cmd->fcp_cmnd->fcpCntl2 = 0; | |
dea3101e | 3920 | |
91886523 JSEC |
3921 | int_to_scsilun(lpfc_cmd->pCmd->device->lun, |
3922 | &lpfc_cmd->fcp_cmnd->fcp_lun); | |
dea3101e | 3923 | |
df9e1b59 JS |
3924 | memset(&fcp_cmnd->fcpCdb[0], 0, LPFC_FCP_CDB_LEN); |
3925 | memcpy(&fcp_cmnd->fcpCdb[0], scsi_cmnd->cmnd, scsi_cmnd->cmd_len); | |
7e2b19fb JS |
3926 | if (scsi_populate_tag_msg(scsi_cmnd, tag)) { |
3927 | switch (tag[0]) { | |
dea3101e | 3928 | case HEAD_OF_QUEUE_TAG: |
3929 | fcp_cmnd->fcpCntl1 = HEAD_OF_Q; | |
3930 | break; | |
3931 | case ORDERED_QUEUE_TAG: | |
3932 | fcp_cmnd->fcpCntl1 = ORDERED_Q; | |
3933 | break; | |
3934 | default: | |
3935 | fcp_cmnd->fcpCntl1 = SIMPLE_Q; | |
3936 | break; | |
3937 | } | |
3938 | } else | |
3939 | fcp_cmnd->fcpCntl1 = 0; | |
3940 | ||
3941 | /* | |
3942 | * There are three possibilities here - use scatter-gather segment, use | |
3943 | * the single mapping, or neither. Start the lpfc command prep by | |
3944 | * bumping the bpl beyond the fcp_cmnd and fcp_rsp regions to the first | |
3945 | * data bde entry. | |
3946 | */ | |
a0b4f78f | 3947 | if (scsi_sg_count(scsi_cmnd)) { |
dea3101e | 3948 | if (datadir == DMA_TO_DEVICE) { |
3949 | iocb_cmd->ulpCommand = CMD_FCP_IWRITE64_CR; | |
3772a991 JS |
3950 | if (phba->sli_rev < LPFC_SLI_REV4) { |
3951 | iocb_cmd->un.fcpi.fcpi_parm = 0; | |
3952 | iocb_cmd->ulpPU = 0; | |
3953 | } else | |
3954 | iocb_cmd->ulpPU = PARM_READ_CHECK; | |
dea3101e | 3955 | fcp_cmnd->fcpCntl3 = WRITE_DATA; |
3956 | phba->fc4OutputRequests++; | |
3957 | } else { | |
3958 | iocb_cmd->ulpCommand = CMD_FCP_IREAD64_CR; | |
3959 | iocb_cmd->ulpPU = PARM_READ_CHECK; | |
dea3101e | 3960 | fcp_cmnd->fcpCntl3 = READ_DATA; |
3961 | phba->fc4InputRequests++; | |
3962 | } | |
3963 | } else { | |
3964 | iocb_cmd->ulpCommand = CMD_FCP_ICMND64_CR; | |
3965 | iocb_cmd->un.fcpi.fcpi_parm = 0; | |
3966 | iocb_cmd->ulpPU = 0; | |
3967 | fcp_cmnd->fcpCntl3 = 0; | |
3968 | phba->fc4ControlRequests++; | |
3969 | } | |
e2a0a9d6 JS |
3970 | if (phba->sli_rev == 3 && |
3971 | !(phba->sli3_options & LPFC_SLI3_BG_ENABLED)) | |
34b02dcd | 3972 | lpfc_fcpcmd_to_iocb(iocb_cmd->unsli3.fcp_ext.icd, fcp_cmnd); |
dea3101e | 3973 | /* |
3974 | * Finish initializing those IOCB fields that are independent | |
3975 | * of the scsi_cmnd request_buffer | |
3976 | */ | |
3977 | piocbq->iocb.ulpContext = pnode->nlp_rpi; | |
6d368e53 JS |
3978 | if (phba->sli_rev == LPFC_SLI_REV4) |
3979 | piocbq->iocb.ulpContext = | |
3980 | phba->sli4_hba.rpi_ids[pnode->nlp_rpi]; | |
dea3101e | 3981 | if (pnode->nlp_fcp_info & NLP_FCP_2_DEVICE) |
3982 | piocbq->iocb.ulpFCP2Rcvy = 1; | |
09372820 JS |
3983 | else |
3984 | piocbq->iocb.ulpFCP2Rcvy = 0; | |
dea3101e | 3985 | |
3986 | piocbq->iocb.ulpClass = (pnode->nlp_fcp_info & 0x0f); | |
3987 | piocbq->context1 = lpfc_cmd; | |
3988 | piocbq->iocb_cmpl = lpfc_scsi_cmd_iocb_cmpl; | |
3989 | piocbq->iocb.ulpTimeout = lpfc_cmd->timeout; | |
2e0fef85 | 3990 | piocbq->vport = vport; |
dea3101e | 3991 | } |
3992 | ||
da0436e9 | 3993 | /** |
6d368e53 | 3994 | * lpfc_scsi_prep_task_mgmt_cmd - Convert SLI3 scsi TM cmd to FCP info unit |
9bad7671 JS |
3995 | * @vport: The virtual port for which this call is being executed. |
3996 | * @lpfc_cmd: Pointer to lpfc_scsi_buf data structure. | |
3997 | * @lun: Logical unit number. | |
3998 | * @task_mgmt_cmd: SCSI task management command. | |
3999 | * | |
3772a991 JS |
4000 | * This routine creates FCP information unit corresponding to @task_mgmt_cmd |
4001 | * for device with SLI-3 interface spec. | |
9bad7671 JS |
4002 | * |
4003 | * Return codes: | |
4004 | * 0 - Error | |
4005 | * 1 - Success | |
4006 | **/ | |
dea3101e | 4007 | static int |
f1126688 | 4008 | lpfc_scsi_prep_task_mgmt_cmd(struct lpfc_vport *vport, |
dea3101e | 4009 | struct lpfc_scsi_buf *lpfc_cmd, |
420b630d | 4010 | unsigned int lun, |
dea3101e | 4011 | uint8_t task_mgmt_cmd) |
4012 | { | |
dea3101e | 4013 | struct lpfc_iocbq *piocbq; |
4014 | IOCB_t *piocb; | |
4015 | struct fcp_cmnd *fcp_cmnd; | |
0b18ac42 | 4016 | struct lpfc_rport_data *rdata = lpfc_cmd->rdata; |
dea3101e | 4017 | struct lpfc_nodelist *ndlp = rdata->pnode; |
4018 | ||
58da1ffb JS |
4019 | if (!ndlp || !NLP_CHK_NODE_ACT(ndlp) || |
4020 | ndlp->nlp_state != NLP_STE_MAPPED_NODE) | |
dea3101e | 4021 | return 0; |
dea3101e | 4022 | |
dea3101e | 4023 | piocbq = &(lpfc_cmd->cur_iocbq); |
2e0fef85 JS |
4024 | piocbq->vport = vport; |
4025 | ||
dea3101e | 4026 | piocb = &piocbq->iocb; |
4027 | ||
4028 | fcp_cmnd = lpfc_cmd->fcp_cmnd; | |
34b02dcd JS |
4029 | /* Clear out any old data in the FCP command area */ |
4030 | memset(fcp_cmnd, 0, sizeof(struct fcp_cmnd)); | |
4031 | int_to_scsilun(lun, &fcp_cmnd->fcp_lun); | |
dea3101e | 4032 | fcp_cmnd->fcpCntl2 = task_mgmt_cmd; |
e2a0a9d6 JS |
4033 | if (vport->phba->sli_rev == 3 && |
4034 | !(vport->phba->sli3_options & LPFC_SLI3_BG_ENABLED)) | |
34b02dcd | 4035 | lpfc_fcpcmd_to_iocb(piocb->unsli3.fcp_ext.icd, fcp_cmnd); |
dea3101e | 4036 | piocb->ulpCommand = CMD_FCP_ICMND64_CR; |
dea3101e | 4037 | piocb->ulpContext = ndlp->nlp_rpi; |
6d368e53 JS |
4038 | if (vport->phba->sli_rev == LPFC_SLI_REV4) { |
4039 | piocb->ulpContext = | |
4040 | vport->phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]; | |
4041 | } | |
dea3101e | 4042 | if (ndlp->nlp_fcp_info & NLP_FCP_2_DEVICE) { |
4043 | piocb->ulpFCP2Rcvy = 1; | |
4044 | } | |
4045 | piocb->ulpClass = (ndlp->nlp_fcp_info & 0x0f); | |
4046 | ||
4047 | /* ulpTimeout is only one byte */ | |
4048 | if (lpfc_cmd->timeout > 0xff) { | |
4049 | /* | |
4050 | * Do not timeout the command at the firmware level. | |
4051 | * The driver will provide the timeout mechanism. | |
4052 | */ | |
4053 | piocb->ulpTimeout = 0; | |
f1126688 | 4054 | } else |
dea3101e | 4055 | piocb->ulpTimeout = lpfc_cmd->timeout; |
da0436e9 | 4056 | |
f1126688 JS |
4057 | if (vport->phba->sli_rev == LPFC_SLI_REV4) |
4058 | lpfc_sli4_set_rsp_sgl_last(vport->phba, lpfc_cmd); | |
3772a991 | 4059 | |
f1126688 | 4060 | return 1; |
3772a991 JS |
4061 | } |
4062 | ||
4063 | /** | |
25985edc | 4064 | * lpfc_scsi_api_table_setup - Set up scsi api function jump table |
3772a991 JS |
4065 | * @phba: The hba struct for which this call is being executed. |
4066 | * @dev_grp: The HBA PCI-Device group number. | |
4067 | * | |
4068 | * This routine sets up the SCSI interface API function jump table in @phba | |
4069 | * struct. | |
4070 | * Returns: 0 - success, -ENODEV - failure. | |
4071 | **/ | |
4072 | int | |
4073 | lpfc_scsi_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) | |
4074 | { | |
4075 | ||
f1126688 JS |
4076 | phba->lpfc_scsi_unprep_dma_buf = lpfc_scsi_unprep_dma_buf; |
4077 | phba->lpfc_scsi_prep_cmnd = lpfc_scsi_prep_cmnd; | |
f1126688 | 4078 | |
3772a991 JS |
4079 | switch (dev_grp) { |
4080 | case LPFC_PCI_DEV_LP: | |
4081 | phba->lpfc_new_scsi_buf = lpfc_new_scsi_buf_s3; | |
4082 | phba->lpfc_scsi_prep_dma_buf = lpfc_scsi_prep_dma_buf_s3; | |
acd6859b | 4083 | phba->lpfc_bg_scsi_prep_dma_buf = lpfc_bg_scsi_prep_dma_buf_s3; |
3772a991 | 4084 | phba->lpfc_release_scsi_buf = lpfc_release_scsi_buf_s3; |
19ca7609 | 4085 | phba->lpfc_get_scsi_buf = lpfc_get_scsi_buf_s3; |
3772a991 | 4086 | break; |
da0436e9 JS |
4087 | case LPFC_PCI_DEV_OC: |
4088 | phba->lpfc_new_scsi_buf = lpfc_new_scsi_buf_s4; | |
4089 | phba->lpfc_scsi_prep_dma_buf = lpfc_scsi_prep_dma_buf_s4; | |
acd6859b | 4090 | phba->lpfc_bg_scsi_prep_dma_buf = lpfc_bg_scsi_prep_dma_buf_s4; |
da0436e9 | 4091 | phba->lpfc_release_scsi_buf = lpfc_release_scsi_buf_s4; |
19ca7609 | 4092 | phba->lpfc_get_scsi_buf = lpfc_get_scsi_buf_s4; |
da0436e9 | 4093 | break; |
3772a991 JS |
4094 | default: |
4095 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, | |
4096 | "1418 Invalid HBA PCI-device group: 0x%x\n", | |
4097 | dev_grp); | |
4098 | return -ENODEV; | |
4099 | break; | |
4100 | } | |
3772a991 | 4101 | phba->lpfc_rampdown_queue_depth = lpfc_rampdown_queue_depth; |
84d1b006 | 4102 | phba->lpfc_scsi_cmd_iocb_cmpl = lpfc_scsi_cmd_iocb_cmpl; |
3772a991 JS |
4103 | return 0; |
4104 | } | |
4105 | ||
9bad7671 | 4106 | /** |
3621a710 | 4107 | * lpfc_taskmgmt_def_cmpl - IOCB completion routine for task management command |
9bad7671 JS |
4108 | * @phba: The Hba for which this call is being executed. |
4109 | * @cmdiocbq: Pointer to lpfc_iocbq data structure. | |
4110 | * @rspiocbq: Pointer to lpfc_iocbq data structure. | |
4111 | * | |
4112 | * This routine is IOCB completion routine for device reset and target reset | |
4113 | * routine. This routine release scsi buffer associated with lpfc_cmd. | |
4114 | **/ | |
7054a606 JS |
4115 | static void |
4116 | lpfc_tskmgmt_def_cmpl(struct lpfc_hba *phba, | |
4117 | struct lpfc_iocbq *cmdiocbq, | |
4118 | struct lpfc_iocbq *rspiocbq) | |
4119 | { | |
4120 | struct lpfc_scsi_buf *lpfc_cmd = | |
4121 | (struct lpfc_scsi_buf *) cmdiocbq->context1; | |
4122 | if (lpfc_cmd) | |
4123 | lpfc_release_scsi_buf(phba, lpfc_cmd); | |
4124 | return; | |
4125 | } | |
4126 | ||
9bad7671 | 4127 | /** |
3621a710 | 4128 | * lpfc_info - Info entry point of scsi_host_template data structure |
9bad7671 JS |
4129 | * @host: The scsi host for which this call is being executed. |
4130 | * | |
4131 | * This routine provides module information about hba. | |
4132 | * | |
4133 | * Reutrn code: | |
4134 | * Pointer to char - Success. | |
4135 | **/ | |
dea3101e | 4136 | const char * |
4137 | lpfc_info(struct Scsi_Host *host) | |
4138 | { | |
2e0fef85 JS |
4139 | struct lpfc_vport *vport = (struct lpfc_vport *) host->hostdata; |
4140 | struct lpfc_hba *phba = vport->phba; | |
dea3101e | 4141 | int len; |
4142 | static char lpfcinfobuf[384]; | |
4143 | ||
4144 | memset(lpfcinfobuf,0,384); | |
4145 | if (phba && phba->pcidev){ | |
4146 | strncpy(lpfcinfobuf, phba->ModelDesc, 256); | |
4147 | len = strlen(lpfcinfobuf); | |
4148 | snprintf(lpfcinfobuf + len, | |
4149 | 384-len, | |
4150 | " on PCI bus %02x device %02x irq %d", | |
4151 | phba->pcidev->bus->number, | |
4152 | phba->pcidev->devfn, | |
4153 | phba->pcidev->irq); | |
4154 | len = strlen(lpfcinfobuf); | |
4155 | if (phba->Port[0]) { | |
4156 | snprintf(lpfcinfobuf + len, | |
4157 | 384-len, | |
4158 | " port %s", | |
4159 | phba->Port); | |
4160 | } | |
65467b6b JS |
4161 | len = strlen(lpfcinfobuf); |
4162 | if (phba->sli4_hba.link_state.logical_speed) { | |
4163 | snprintf(lpfcinfobuf + len, | |
4164 | 384-len, | |
4165 | " Logical Link Speed: %d Mbps", | |
4166 | phba->sli4_hba.link_state.logical_speed * 10); | |
4167 | } | |
dea3101e | 4168 | } |
4169 | return lpfcinfobuf; | |
4170 | } | |
4171 | ||
9bad7671 | 4172 | /** |
3621a710 | 4173 | * lpfc_poll_rearm_time - Routine to modify fcp_poll timer of hba |
9bad7671 JS |
4174 | * @phba: The Hba for which this call is being executed. |
4175 | * | |
4176 | * This routine modifies fcp_poll_timer field of @phba by cfg_poll_tmo. | |
4177 | * The default value of cfg_poll_tmo is 10 milliseconds. | |
4178 | **/ | |
875fbdfe JSEC |
4179 | static __inline__ void lpfc_poll_rearm_timer(struct lpfc_hba * phba) |
4180 | { | |
4181 | unsigned long poll_tmo_expires = | |
4182 | (jiffies + msecs_to_jiffies(phba->cfg_poll_tmo)); | |
4183 | ||
4184 | if (phba->sli.ring[LPFC_FCP_RING].txcmplq_cnt) | |
4185 | mod_timer(&phba->fcp_poll_timer, | |
4186 | poll_tmo_expires); | |
4187 | } | |
4188 | ||
9bad7671 | 4189 | /** |
3621a710 | 4190 | * lpfc_poll_start_timer - Routine to start fcp_poll_timer of HBA |
9bad7671 JS |
4191 | * @phba: The Hba for which this call is being executed. |
4192 | * | |
4193 | * This routine starts the fcp_poll_timer of @phba. | |
4194 | **/ | |
875fbdfe JSEC |
4195 | void lpfc_poll_start_timer(struct lpfc_hba * phba) |
4196 | { | |
4197 | lpfc_poll_rearm_timer(phba); | |
4198 | } | |
4199 | ||
9bad7671 | 4200 | /** |
3621a710 | 4201 | * lpfc_poll_timeout - Restart polling timer |
9bad7671 JS |
4202 | * @ptr: Map to lpfc_hba data structure pointer. |
4203 | * | |
4204 | * This routine restarts fcp_poll timer, when FCP ring polling is enable | |
4205 | * and FCP Ring interrupt is disable. | |
4206 | **/ | |
4207 | ||
875fbdfe JSEC |
4208 | void lpfc_poll_timeout(unsigned long ptr) |
4209 | { | |
2e0fef85 | 4210 | struct lpfc_hba *phba = (struct lpfc_hba *) ptr; |
875fbdfe JSEC |
4211 | |
4212 | if (phba->cfg_poll & ENABLE_FCP_RING_POLLING) { | |
45ed1190 JS |
4213 | lpfc_sli_handle_fast_ring_event(phba, |
4214 | &phba->sli.ring[LPFC_FCP_RING], HA_R0RE_REQ); | |
4215 | ||
875fbdfe JSEC |
4216 | if (phba->cfg_poll & DISABLE_FCP_RING_INT) |
4217 | lpfc_poll_rearm_timer(phba); | |
4218 | } | |
875fbdfe JSEC |
4219 | } |
4220 | ||
9bad7671 | 4221 | /** |
3621a710 | 4222 | * lpfc_queuecommand - scsi_host_template queuecommand entry point |
9bad7671 JS |
4223 | * @cmnd: Pointer to scsi_cmnd data structure. |
4224 | * @done: Pointer to done routine. | |
4225 | * | |
4226 | * Driver registers this routine to scsi midlayer to submit a @cmd to process. | |
4227 | * This routine prepares an IOCB from scsi command and provides to firmware. | |
4228 | * The @done callback is invoked after driver finished processing the command. | |
4229 | * | |
4230 | * Return value : | |
4231 | * 0 - Success | |
4232 | * SCSI_MLQUEUE_HOST_BUSY - Block all devices served by this host temporarily. | |
4233 | **/ | |
dea3101e | 4234 | static int |
f281233d | 4235 | lpfc_queuecommand_lck(struct scsi_cmnd *cmnd, void (*done) (struct scsi_cmnd *)) |
dea3101e | 4236 | { |
2e0fef85 JS |
4237 | struct Scsi_Host *shost = cmnd->device->host; |
4238 | struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; | |
4239 | struct lpfc_hba *phba = vport->phba; | |
dea3101e | 4240 | struct lpfc_rport_data *rdata = cmnd->device->hostdata; |
1c6f4ef5 | 4241 | struct lpfc_nodelist *ndlp; |
0bd4ca25 | 4242 | struct lpfc_scsi_buf *lpfc_cmd; |
19a7b4ae | 4243 | struct fc_rport *rport = starget_to_rport(scsi_target(cmnd->device)); |
19a7b4ae | 4244 | int err; |
dea3101e | 4245 | |
19a7b4ae JSEC |
4246 | err = fc_remote_port_chkready(rport); |
4247 | if (err) { | |
4248 | cmnd->result = err; | |
dea3101e | 4249 | goto out_fail_command; |
4250 | } | |
1c6f4ef5 | 4251 | ndlp = rdata->pnode; |
dea3101e | 4252 | |
bf08611b | 4253 | if ((scsi_get_prot_op(cmnd) != SCSI_PROT_NORMAL) && |
acd6859b | 4254 | (!(phba->sli3_options & LPFC_SLI3_BG_ENABLED))) { |
e2a0a9d6 | 4255 | |
6a9c52cf JS |
4256 | lpfc_printf_log(phba, KERN_ERR, LOG_BG, |
4257 | "9058 BLKGRD: ERROR: rcvd protected cmd:%02x" | |
4258 | " op:%02x str=%s without registering for" | |
4259 | " BlockGuard - Rejecting command\n", | |
e2a0a9d6 JS |
4260 | cmnd->cmnd[0], scsi_get_prot_op(cmnd), |
4261 | dif_op_str[scsi_get_prot_op(cmnd)]); | |
4262 | goto out_fail_command; | |
4263 | } | |
4264 | ||
dea3101e | 4265 | /* |
19a7b4ae JSEC |
4266 | * Catch race where our node has transitioned, but the |
4267 | * transport is still transitioning. | |
dea3101e | 4268 | */ |
b522d7d4 | 4269 | if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) { |
f55ca84d | 4270 | cmnd->result = ScsiResult(DID_IMM_RETRY, 0); |
b522d7d4 JS |
4271 | goto out_fail_command; |
4272 | } | |
7dc517df | 4273 | if (atomic_read(&ndlp->cmd_pending) >= ndlp->cmd_qdepth) |
3496343d | 4274 | goto out_tgt_busy; |
a93ce024 | 4275 | |
19ca7609 | 4276 | lpfc_cmd = lpfc_get_scsi_buf(phba, ndlp); |
dea3101e | 4277 | if (lpfc_cmd == NULL) { |
eaf15d5b | 4278 | lpfc_rampdown_queue_depth(phba); |
92d7f7b0 | 4279 | |
e8b62011 JS |
4280 | lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP, |
4281 | "0707 driver's buffer pool is empty, " | |
4282 | "IO busied\n"); | |
dea3101e | 4283 | goto out_host_busy; |
4284 | } | |
4285 | ||
4286 | /* | |
4287 | * Store the midlayer's command structure for the completion phase | |
4288 | * and complete the command initialization. | |
4289 | */ | |
4290 | lpfc_cmd->pCmd = cmnd; | |
4291 | lpfc_cmd->rdata = rdata; | |
4292 | lpfc_cmd->timeout = 0; | |
977b5a0a | 4293 | lpfc_cmd->start_time = jiffies; |
dea3101e | 4294 | cmnd->host_scribble = (unsigned char *)lpfc_cmd; |
4295 | cmnd->scsi_done = done; | |
4296 | ||
e2a0a9d6 | 4297 | if (scsi_get_prot_op(cmnd) != SCSI_PROT_NORMAL) { |
6a9c52cf JS |
4298 | if (vport->phba->cfg_enable_bg) { |
4299 | lpfc_printf_vlog(vport, KERN_WARNING, LOG_BG, | |
9a6b09c0 JS |
4300 | "9033 BLKGRD: rcvd protected cmd:%02x op=%s " |
4301 | "guard=%s\n", cmnd->cmnd[0], | |
4302 | dif_op_str[scsi_get_prot_op(cmnd)], | |
4303 | dif_grd_str[scsi_host_get_guard(shost)]); | |
6a9c52cf JS |
4304 | if (cmnd->cmnd[0] == READ_10) |
4305 | lpfc_printf_vlog(vport, KERN_WARNING, LOG_BG, | |
e2a0a9d6 | 4306 | "9035 BLKGRD: READ @ sector %llu, " |
9a6b09c0 | 4307 | "cnt %u, rpt %d\n", |
83096ebf | 4308 | (unsigned long long)scsi_get_lba(cmnd), |
9a6b09c0 JS |
4309 | blk_rq_sectors(cmnd->request), |
4310 | (cmnd->cmnd[1]>>5)); | |
6a9c52cf JS |
4311 | else if (cmnd->cmnd[0] == WRITE_10) |
4312 | lpfc_printf_vlog(vport, KERN_WARNING, LOG_BG, | |
e2a0a9d6 | 4313 | "9036 BLKGRD: WRITE @ sector %llu, " |
9a6b09c0 | 4314 | "cnt %u, wpt %d\n", |
87b5c328 | 4315 | (unsigned long long)scsi_get_lba(cmnd), |
83096ebf | 4316 | blk_rq_sectors(cmnd->request), |
9a6b09c0 | 4317 | (cmnd->cmnd[1]>>5)); |
6a9c52cf | 4318 | } |
e2a0a9d6 JS |
4319 | |
4320 | err = lpfc_bg_scsi_prep_dma_buf(phba, lpfc_cmd); | |
4321 | } else { | |
6a9c52cf | 4322 | if (vport->phba->cfg_enable_bg) { |
e2a0a9d6 | 4323 | lpfc_printf_vlog(vport, KERN_WARNING, LOG_BG, |
9a6b09c0 JS |
4324 | "9038 BLKGRD: rcvd unprotected cmd:" |
4325 | "%02x op=%s guard=%s\n", cmnd->cmnd[0], | |
4326 | dif_op_str[scsi_get_prot_op(cmnd)], | |
4327 | dif_grd_str[scsi_host_get_guard(shost)]); | |
6a9c52cf JS |
4328 | if (cmnd->cmnd[0] == READ_10) |
4329 | lpfc_printf_vlog(vport, KERN_WARNING, LOG_BG, | |
4330 | "9040 dbg: READ @ sector %llu, " | |
9a6b09c0 | 4331 | "cnt %u, rpt %d\n", |
6a9c52cf | 4332 | (unsigned long long)scsi_get_lba(cmnd), |
9a6b09c0 JS |
4333 | blk_rq_sectors(cmnd->request), |
4334 | (cmnd->cmnd[1]>>5)); | |
6a9c52cf JS |
4335 | else if (cmnd->cmnd[0] == WRITE_10) |
4336 | lpfc_printf_vlog(vport, KERN_WARNING, LOG_BG, | |
9a6b09c0 JS |
4337 | "9041 dbg: WRITE @ sector %llu, " |
4338 | "cnt %u, wpt %d\n", | |
4339 | (unsigned long long)scsi_get_lba(cmnd), | |
4340 | blk_rq_sectors(cmnd->request), | |
4341 | (cmnd->cmnd[1]>>5)); | |
6a9c52cf | 4342 | } |
e2a0a9d6 JS |
4343 | err = lpfc_scsi_prep_dma_buf(phba, lpfc_cmd); |
4344 | } | |
4345 | ||
dea3101e | 4346 | if (err) |
4347 | goto out_host_busy_free_buf; | |
4348 | ||
2e0fef85 | 4349 | lpfc_scsi_prep_cmnd(vport, lpfc_cmd, ndlp); |
dea3101e | 4350 | |
977b5a0a | 4351 | atomic_inc(&ndlp->cmd_pending); |
3772a991 | 4352 | err = lpfc_sli_issue_iocb(phba, LPFC_FCP_RING, |
92d7f7b0 | 4353 | &lpfc_cmd->cur_iocbq, SLI_IOCB_RET_IOCB); |
eaf15d5b JS |
4354 | if (err) { |
4355 | atomic_dec(&ndlp->cmd_pending); | |
dea3101e | 4356 | goto out_host_busy_free_buf; |
eaf15d5b | 4357 | } |
875fbdfe | 4358 | if (phba->cfg_poll & ENABLE_FCP_RING_POLLING) { |
45ed1190 JS |
4359 | spin_unlock(shost->host_lock); |
4360 | lpfc_sli_handle_fast_ring_event(phba, | |
4361 | &phba->sli.ring[LPFC_FCP_RING], HA_R0RE_REQ); | |
4362 | ||
4363 | spin_lock(shost->host_lock); | |
875fbdfe JSEC |
4364 | if (phba->cfg_poll & DISABLE_FCP_RING_INT) |
4365 | lpfc_poll_rearm_timer(phba); | |
4366 | } | |
4367 | ||
dea3101e | 4368 | return 0; |
4369 | ||
4370 | out_host_busy_free_buf: | |
bcf4dbfa | 4371 | lpfc_scsi_unprep_dma_buf(phba, lpfc_cmd); |
0bd4ca25 | 4372 | lpfc_release_scsi_buf(phba, lpfc_cmd); |
dea3101e | 4373 | out_host_busy: |
4374 | return SCSI_MLQUEUE_HOST_BUSY; | |
4375 | ||
3496343d MC |
4376 | out_tgt_busy: |
4377 | return SCSI_MLQUEUE_TARGET_BUSY; | |
4378 | ||
dea3101e | 4379 | out_fail_command: |
4380 | done(cmnd); | |
4381 | return 0; | |
4382 | } | |
4383 | ||
f281233d JG |
4384 | static DEF_SCSI_QCMD(lpfc_queuecommand) |
4385 | ||
9bad7671 | 4386 | /** |
3621a710 | 4387 | * lpfc_abort_handler - scsi_host_template eh_abort_handler entry point |
9bad7671 JS |
4388 | * @cmnd: Pointer to scsi_cmnd data structure. |
4389 | * | |
4390 | * This routine aborts @cmnd pending in base driver. | |
4391 | * | |
4392 | * Return code : | |
4393 | * 0x2003 - Error | |
4394 | * 0x2002 - Success | |
4395 | **/ | |
dea3101e | 4396 | static int |
63c59c3b | 4397 | lpfc_abort_handler(struct scsi_cmnd *cmnd) |
dea3101e | 4398 | { |
2e0fef85 JS |
4399 | struct Scsi_Host *shost = cmnd->device->host; |
4400 | struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; | |
4401 | struct lpfc_hba *phba = vport->phba; | |
0bd4ca25 JSEC |
4402 | struct lpfc_iocbq *iocb; |
4403 | struct lpfc_iocbq *abtsiocb; | |
dea3101e | 4404 | struct lpfc_scsi_buf *lpfc_cmd; |
dea3101e | 4405 | IOCB_t *cmd, *icmd; |
0bd4ca25 | 4406 | int ret = SUCCESS; |
fa61a54e | 4407 | DECLARE_WAIT_QUEUE_HEAD_ONSTACK(waitq); |
dea3101e | 4408 | |
589a52d6 JS |
4409 | ret = fc_block_scsi_eh(cmnd); |
4410 | if (ret) | |
4411 | return ret; | |
4f2e66c6 JS |
4412 | |
4413 | spin_lock_irq(&phba->hbalock); | |
4414 | /* driver queued commands are in process of being flushed */ | |
4415 | if (phba->hba_flag & HBA_FCP_IOQ_FLUSH) { | |
4416 | spin_unlock_irq(&phba->hbalock); | |
4417 | lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP, | |
4418 | "3168 SCSI Layer abort requested I/O has been " | |
4419 | "flushed by LLD.\n"); | |
4420 | return FAILED; | |
4421 | } | |
4422 | ||
0bd4ca25 | 4423 | lpfc_cmd = (struct lpfc_scsi_buf *)cmnd->host_scribble; |
eee8877e | 4424 | if (!lpfc_cmd) { |
4f2e66c6 | 4425 | spin_unlock_irq(&phba->hbalock); |
eee8877e JS |
4426 | lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP, |
4427 | "2873 SCSI Layer I/O Abort Request IO CMPL Status " | |
5cd049a5 CH |
4428 | "x%x ID %d LUN %d\n", |
4429 | ret, cmnd->device->id, cmnd->device->lun); | |
eee8877e JS |
4430 | return SUCCESS; |
4431 | } | |
dea3101e | 4432 | |
4f2e66c6 JS |
4433 | iocb = &lpfc_cmd->cur_iocbq; |
4434 | /* the command is in process of being cancelled */ | |
4435 | if (!(iocb->iocb_flag & LPFC_IO_ON_TXCMPLQ)) { | |
4436 | spin_unlock_irq(&phba->hbalock); | |
4437 | lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP, | |
4438 | "3169 SCSI Layer abort requested I/O has been " | |
4439 | "cancelled by LLD.\n"); | |
4440 | return FAILED; | |
4441 | } | |
0bd4ca25 JSEC |
4442 | /* |
4443 | * If pCmd field of the corresponding lpfc_scsi_buf structure | |
4444 | * points to a different SCSI command, then the driver has | |
4445 | * already completed this command, but the midlayer did not | |
4f2e66c6 | 4446 | * see the completion before the eh fired. Just return SUCCESS. |
0bd4ca25 | 4447 | */ |
4f2e66c6 JS |
4448 | if (lpfc_cmd->pCmd != cmnd) { |
4449 | lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP, | |
4450 | "3170 SCSI Layer abort requested I/O has been " | |
4451 | "completed by LLD.\n"); | |
4452 | goto out_unlock; | |
4453 | } | |
dea3101e | 4454 | |
0bd4ca25 | 4455 | BUG_ON(iocb->context1 != lpfc_cmd); |
dea3101e | 4456 | |
4f2e66c6 | 4457 | abtsiocb = __lpfc_sli_get_iocbq(phba); |
0bd4ca25 JSEC |
4458 | if (abtsiocb == NULL) { |
4459 | ret = FAILED; | |
4f2e66c6 | 4460 | goto out_unlock; |
dea3101e | 4461 | } |
4462 | ||
dea3101e | 4463 | /* |
0bd4ca25 JSEC |
4464 | * The scsi command can not be in txq and it is in flight because the |
4465 | * pCmd is still pointig at the SCSI command we have to abort. There | |
4466 | * is no need to search the txcmplq. Just send an abort to the FW. | |
dea3101e | 4467 | */ |
dea3101e | 4468 | |
0bd4ca25 JSEC |
4469 | cmd = &iocb->iocb; |
4470 | icmd = &abtsiocb->iocb; | |
4471 | icmd->un.acxri.abortType = ABORT_TYPE_ABTS; | |
4472 | icmd->un.acxri.abortContextTag = cmd->ulpContext; | |
3772a991 JS |
4473 | if (phba->sli_rev == LPFC_SLI_REV4) |
4474 | icmd->un.acxri.abortIoTag = iocb->sli4_xritag; | |
4475 | else | |
4476 | icmd->un.acxri.abortIoTag = cmd->ulpIoTag; | |
dea3101e | 4477 | |
0bd4ca25 JSEC |
4478 | icmd->ulpLe = 1; |
4479 | icmd->ulpClass = cmd->ulpClass; | |
5ffc266e JS |
4480 | |
4481 | /* ABTS WQE must go to the same WQ as the WQE to be aborted */ | |
4482 | abtsiocb->fcp_wqidx = iocb->fcp_wqidx; | |
341af102 | 4483 | abtsiocb->iocb_flag |= LPFC_USE_FCPWQIDX; |
5ffc266e | 4484 | |
2e0fef85 | 4485 | if (lpfc_is_link_up(phba)) |
0bd4ca25 JSEC |
4486 | icmd->ulpCommand = CMD_ABORT_XRI_CN; |
4487 | else | |
4488 | icmd->ulpCommand = CMD_CLOSE_XRI_CN; | |
dea3101e | 4489 | |
0bd4ca25 | 4490 | abtsiocb->iocb_cmpl = lpfc_sli_abort_fcp_cmpl; |
2e0fef85 | 4491 | abtsiocb->vport = vport; |
4f2e66c6 JS |
4492 | /* no longer need the lock after this point */ |
4493 | spin_unlock_irq(&phba->hbalock); | |
4494 | ||
3772a991 JS |
4495 | if (lpfc_sli_issue_iocb(phba, LPFC_FCP_RING, abtsiocb, 0) == |
4496 | IOCB_ERROR) { | |
0bd4ca25 JSEC |
4497 | lpfc_sli_release_iocbq(phba, abtsiocb); |
4498 | ret = FAILED; | |
4499 | goto out; | |
4500 | } | |
dea3101e | 4501 | |
875fbdfe | 4502 | if (phba->cfg_poll & DISABLE_FCP_RING_INT) |
45ed1190 JS |
4503 | lpfc_sli_handle_fast_ring_event(phba, |
4504 | &phba->sli.ring[LPFC_FCP_RING], HA_R0RE_REQ); | |
875fbdfe | 4505 | |
fa61a54e | 4506 | lpfc_cmd->waitq = &waitq; |
0bd4ca25 | 4507 | /* Wait for abort to complete */ |
fa61a54e JS |
4508 | wait_event_timeout(waitq, |
4509 | (lpfc_cmd->pCmd != cmnd), | |
4510 | (2*vport->cfg_devloss_tmo*HZ)); | |
fa61a54e | 4511 | lpfc_cmd->waitq = NULL; |
dea3101e | 4512 | |
0bd4ca25 JSEC |
4513 | if (lpfc_cmd->pCmd == cmnd) { |
4514 | ret = FAILED; | |
e8b62011 JS |
4515 | lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, |
4516 | "0748 abort handler timed out waiting " | |
4517 | "for abort to complete: ret %#x, ID %d, " | |
5cd049a5 CH |
4518 | "LUN %d\n", |
4519 | ret, cmnd->device->id, cmnd->device->lun); | |
dea3101e | 4520 | } |
4f2e66c6 | 4521 | goto out; |
dea3101e | 4522 | |
4f2e66c6 JS |
4523 | out_unlock: |
4524 | spin_unlock_irq(&phba->hbalock); | |
4525 | out: | |
e8b62011 JS |
4526 | lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP, |
4527 | "0749 SCSI Layer I/O Abort Request Status x%x ID %d " | |
5cd049a5 CH |
4528 | "LUN %d\n", ret, cmnd->device->id, |
4529 | cmnd->device->lun); | |
63c59c3b | 4530 | return ret; |
8fa728a2 JG |
4531 | } |
4532 | ||
bbb9d180 JS |
4533 | static char * |
4534 | lpfc_taskmgmt_name(uint8_t task_mgmt_cmd) | |
4535 | { | |
4536 | switch (task_mgmt_cmd) { | |
4537 | case FCP_ABORT_TASK_SET: | |
4538 | return "ABORT_TASK_SET"; | |
4539 | case FCP_CLEAR_TASK_SET: | |
4540 | return "FCP_CLEAR_TASK_SET"; | |
4541 | case FCP_BUS_RESET: | |
4542 | return "FCP_BUS_RESET"; | |
4543 | case FCP_LUN_RESET: | |
4544 | return "FCP_LUN_RESET"; | |
4545 | case FCP_TARGET_RESET: | |
4546 | return "FCP_TARGET_RESET"; | |
4547 | case FCP_CLEAR_ACA: | |
4548 | return "FCP_CLEAR_ACA"; | |
4549 | case FCP_TERMINATE_TASK: | |
4550 | return "FCP_TERMINATE_TASK"; | |
4551 | default: | |
4552 | return "unknown"; | |
4553 | } | |
4554 | } | |
4555 | ||
9bad7671 | 4556 | /** |
bbb9d180 JS |
4557 | * lpfc_send_taskmgmt - Generic SCSI Task Mgmt Handler |
4558 | * @vport: The virtual port for which this call is being executed. | |
4559 | * @rdata: Pointer to remote port local data | |
4560 | * @tgt_id: Target ID of remote device. | |
4561 | * @lun_id: Lun number for the TMF | |
4562 | * @task_mgmt_cmd: type of TMF to send | |
9bad7671 | 4563 | * |
bbb9d180 JS |
4564 | * This routine builds and sends a TMF (SCSI Task Mgmt Function) to |
4565 | * a remote port. | |
9bad7671 | 4566 | * |
bbb9d180 JS |
4567 | * Return Code: |
4568 | * 0x2003 - Error | |
4569 | * 0x2002 - Success. | |
9bad7671 | 4570 | **/ |
dea3101e | 4571 | static int |
bbb9d180 JS |
4572 | lpfc_send_taskmgmt(struct lpfc_vport *vport, struct lpfc_rport_data *rdata, |
4573 | unsigned tgt_id, unsigned int lun_id, | |
4574 | uint8_t task_mgmt_cmd) | |
dea3101e | 4575 | { |
2e0fef85 | 4576 | struct lpfc_hba *phba = vport->phba; |
0bd4ca25 | 4577 | struct lpfc_scsi_buf *lpfc_cmd; |
bbb9d180 JS |
4578 | struct lpfc_iocbq *iocbq; |
4579 | struct lpfc_iocbq *iocbqrsp; | |
5989b8d4 | 4580 | struct lpfc_nodelist *pnode = rdata->pnode; |
bbb9d180 | 4581 | int ret; |
915caaaf | 4582 | int status; |
dea3101e | 4583 | |
5989b8d4 | 4584 | if (!pnode || !NLP_CHK_NODE_ACT(pnode)) |
915caaaf | 4585 | return FAILED; |
bbb9d180 | 4586 | |
19ca7609 | 4587 | lpfc_cmd = lpfc_get_scsi_buf(phba, rdata->pnode); |
dea3101e | 4588 | if (lpfc_cmd == NULL) |
915caaaf | 4589 | return FAILED; |
dea3101e | 4590 | lpfc_cmd->timeout = 60; |
0b18ac42 | 4591 | lpfc_cmd->rdata = rdata; |
dea3101e | 4592 | |
bbb9d180 JS |
4593 | status = lpfc_scsi_prep_task_mgmt_cmd(vport, lpfc_cmd, lun_id, |
4594 | task_mgmt_cmd); | |
915caaaf JS |
4595 | if (!status) { |
4596 | lpfc_release_scsi_buf(phba, lpfc_cmd); | |
4597 | return FAILED; | |
4598 | } | |
dea3101e | 4599 | |
bbb9d180 | 4600 | iocbq = &lpfc_cmd->cur_iocbq; |
0bd4ca25 | 4601 | iocbqrsp = lpfc_sli_get_iocbq(phba); |
915caaaf JS |
4602 | if (iocbqrsp == NULL) { |
4603 | lpfc_release_scsi_buf(phba, lpfc_cmd); | |
4604 | return FAILED; | |
4605 | } | |
bbb9d180 | 4606 | |
e8b62011 | 4607 | lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP, |
bbb9d180 | 4608 | "0702 Issue %s to TGT %d LUN %d " |
6d368e53 | 4609 | "rpi x%x nlp_flag x%x Data: x%x x%x\n", |
bbb9d180 | 4610 | lpfc_taskmgmt_name(task_mgmt_cmd), tgt_id, lun_id, |
6d368e53 JS |
4611 | pnode->nlp_rpi, pnode->nlp_flag, iocbq->sli4_xritag, |
4612 | iocbq->iocb_flag); | |
bbb9d180 | 4613 | |
3772a991 | 4614 | status = lpfc_sli_issue_iocb_wait(phba, LPFC_FCP_RING, |
915caaaf | 4615 | iocbq, iocbqrsp, lpfc_cmd->timeout); |
bbb9d180 JS |
4616 | if (status != IOCB_SUCCESS) { |
4617 | if (status == IOCB_TIMEDOUT) { | |
4618 | iocbq->iocb_cmpl = lpfc_tskmgmt_def_cmpl; | |
4619 | ret = TIMEOUT_ERROR; | |
4620 | } else | |
915caaaf | 4621 | ret = FAILED; |
bbb9d180 JS |
4622 | lpfc_cmd->status = IOSTAT_DRIVER_REJECT; |
4623 | lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, | |
6d368e53 JS |
4624 | "0727 TMF %s to TGT %d LUN %d failed (%d, %d) " |
4625 | "iocb_flag x%x\n", | |
bbb9d180 JS |
4626 | lpfc_taskmgmt_name(task_mgmt_cmd), |
4627 | tgt_id, lun_id, iocbqrsp->iocb.ulpStatus, | |
6d368e53 JS |
4628 | iocbqrsp->iocb.un.ulpWord[4], |
4629 | iocbq->iocb_flag); | |
2a9bf3d0 JS |
4630 | } else if (status == IOCB_BUSY) |
4631 | ret = FAILED; | |
4632 | else | |
bbb9d180 JS |
4633 | ret = SUCCESS; |
4634 | ||
6175c02a | 4635 | lpfc_sli_release_iocbq(phba, iocbqrsp); |
bbb9d180 JS |
4636 | |
4637 | if (ret != TIMEOUT_ERROR) | |
4638 | lpfc_release_scsi_buf(phba, lpfc_cmd); | |
4639 | ||
4640 | return ret; | |
4641 | } | |
4642 | ||
4643 | /** | |
4644 | * lpfc_chk_tgt_mapped - | |
4645 | * @vport: The virtual port to check on | |
4646 | * @cmnd: Pointer to scsi_cmnd data structure. | |
4647 | * | |
4648 | * This routine delays until the scsi target (aka rport) for the | |
4649 | * command exists (is present and logged in) or we declare it non-existent. | |
4650 | * | |
4651 | * Return code : | |
4652 | * 0x2003 - Error | |
4653 | * 0x2002 - Success | |
4654 | **/ | |
4655 | static int | |
4656 | lpfc_chk_tgt_mapped(struct lpfc_vport *vport, struct scsi_cmnd *cmnd) | |
4657 | { | |
4658 | struct lpfc_rport_data *rdata = cmnd->device->hostdata; | |
1c6f4ef5 | 4659 | struct lpfc_nodelist *pnode; |
bbb9d180 JS |
4660 | unsigned long later; |
4661 | ||
1c6f4ef5 JS |
4662 | if (!rdata) { |
4663 | lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP, | |
4664 | "0797 Tgt Map rport failure: rdata x%p\n", rdata); | |
4665 | return FAILED; | |
4666 | } | |
4667 | pnode = rdata->pnode; | |
bbb9d180 JS |
4668 | /* |
4669 | * If target is not in a MAPPED state, delay until | |
4670 | * target is rediscovered or devloss timeout expires. | |
4671 | */ | |
4672 | later = msecs_to_jiffies(2 * vport->cfg_devloss_tmo * 1000) + jiffies; | |
4673 | while (time_after(later, jiffies)) { | |
4674 | if (!pnode || !NLP_CHK_NODE_ACT(pnode)) | |
4675 | return FAILED; | |
4676 | if (pnode->nlp_state == NLP_STE_MAPPED_NODE) | |
4677 | return SUCCESS; | |
4678 | schedule_timeout_uninterruptible(msecs_to_jiffies(500)); | |
4679 | rdata = cmnd->device->hostdata; | |
4680 | if (!rdata) | |
4681 | return FAILED; | |
4682 | pnode = rdata->pnode; | |
4683 | } | |
4684 | if (!pnode || !NLP_CHK_NODE_ACT(pnode) || | |
4685 | (pnode->nlp_state != NLP_STE_MAPPED_NODE)) | |
4686 | return FAILED; | |
4687 | return SUCCESS; | |
4688 | } | |
4689 | ||
4690 | /** | |
4691 | * lpfc_reset_flush_io_context - | |
4692 | * @vport: The virtual port (scsi_host) for the flush context | |
4693 | * @tgt_id: If aborting by Target contect - specifies the target id | |
4694 | * @lun_id: If aborting by Lun context - specifies the lun id | |
4695 | * @context: specifies the context level to flush at. | |
4696 | * | |
4697 | * After a reset condition via TMF, we need to flush orphaned i/o | |
4698 | * contexts from the adapter. This routine aborts any contexts | |
4699 | * outstanding, then waits for their completions. The wait is | |
4700 | * bounded by devloss_tmo though. | |
4701 | * | |
4702 | * Return code : | |
4703 | * 0x2003 - Error | |
4704 | * 0x2002 - Success | |
4705 | **/ | |
4706 | static int | |
4707 | lpfc_reset_flush_io_context(struct lpfc_vport *vport, uint16_t tgt_id, | |
4708 | uint64_t lun_id, lpfc_ctx_cmd context) | |
4709 | { | |
4710 | struct lpfc_hba *phba = vport->phba; | |
4711 | unsigned long later; | |
4712 | int cnt; | |
4713 | ||
4714 | cnt = lpfc_sli_sum_iocb(vport, tgt_id, lun_id, context); | |
6175c02a | 4715 | if (cnt) |
51ef4c26 | 4716 | lpfc_sli_abort_iocb(vport, &phba->sli.ring[phba->sli.fcp_ring], |
bbb9d180 | 4717 | tgt_id, lun_id, context); |
915caaaf JS |
4718 | later = msecs_to_jiffies(2 * vport->cfg_devloss_tmo * 1000) + jiffies; |
4719 | while (time_after(later, jiffies) && cnt) { | |
4720 | schedule_timeout_uninterruptible(msecs_to_jiffies(20)); | |
bbb9d180 | 4721 | cnt = lpfc_sli_sum_iocb(vport, tgt_id, lun_id, context); |
dea3101e | 4722 | } |
dea3101e | 4723 | if (cnt) { |
e8b62011 | 4724 | lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, |
bbb9d180 JS |
4725 | "0724 I/O flush failure for context %s : cnt x%x\n", |
4726 | ((context == LPFC_CTX_LUN) ? "LUN" : | |
4727 | ((context == LPFC_CTX_TGT) ? "TGT" : | |
4728 | ((context == LPFC_CTX_HOST) ? "HOST" : "Unknown"))), | |
4729 | cnt); | |
4730 | return FAILED; | |
dea3101e | 4731 | } |
bbb9d180 JS |
4732 | return SUCCESS; |
4733 | } | |
4734 | ||
4735 | /** | |
4736 | * lpfc_device_reset_handler - scsi_host_template eh_device_reset entry point | |
4737 | * @cmnd: Pointer to scsi_cmnd data structure. | |
4738 | * | |
4739 | * This routine does a device reset by sending a LUN_RESET task management | |
4740 | * command. | |
4741 | * | |
4742 | * Return code : | |
4743 | * 0x2003 - Error | |
4744 | * 0x2002 - Success | |
4745 | **/ | |
4746 | static int | |
4747 | lpfc_device_reset_handler(struct scsi_cmnd *cmnd) | |
4748 | { | |
4749 | struct Scsi_Host *shost = cmnd->device->host; | |
4750 | struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; | |
4751 | struct lpfc_rport_data *rdata = cmnd->device->hostdata; | |
1c6f4ef5 | 4752 | struct lpfc_nodelist *pnode; |
bbb9d180 JS |
4753 | unsigned tgt_id = cmnd->device->id; |
4754 | unsigned int lun_id = cmnd->device->lun; | |
4755 | struct lpfc_scsi_event_header scsi_event; | |
4756 | int status; | |
4757 | ||
1c6f4ef5 JS |
4758 | if (!rdata) { |
4759 | lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, | |
4760 | "0798 Device Reset rport failure: rdata x%p\n", rdata); | |
4761 | return FAILED; | |
4762 | } | |
4763 | pnode = rdata->pnode; | |
589a52d6 JS |
4764 | status = fc_block_scsi_eh(cmnd); |
4765 | if (status) | |
4766 | return status; | |
bbb9d180 JS |
4767 | |
4768 | status = lpfc_chk_tgt_mapped(vport, cmnd); | |
4769 | if (status == FAILED) { | |
4770 | lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, | |
4771 | "0721 Device Reset rport failure: rdata x%p\n", rdata); | |
4772 | return FAILED; | |
4773 | } | |
4774 | ||
4775 | scsi_event.event_type = FC_REG_SCSI_EVENT; | |
4776 | scsi_event.subcategory = LPFC_EVENT_LUNRESET; | |
4777 | scsi_event.lun = lun_id; | |
4778 | memcpy(scsi_event.wwpn, &pnode->nlp_portname, sizeof(struct lpfc_name)); | |
4779 | memcpy(scsi_event.wwnn, &pnode->nlp_nodename, sizeof(struct lpfc_name)); | |
4780 | ||
4781 | fc_host_post_vendor_event(shost, fc_get_event_number(), | |
4782 | sizeof(scsi_event), (char *)&scsi_event, LPFC_NL_VENDOR_ID); | |
4783 | ||
4784 | status = lpfc_send_taskmgmt(vport, rdata, tgt_id, lun_id, | |
4785 | FCP_LUN_RESET); | |
4786 | ||
4787 | lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, | |
4788 | "0713 SCSI layer issued Device Reset (%d, %d) " | |
4789 | "return x%x\n", tgt_id, lun_id, status); | |
4790 | ||
4791 | /* | |
4792 | * We have to clean up i/o as : they may be orphaned by the TMF; | |
4793 | * or if the TMF failed, they may be in an indeterminate state. | |
4794 | * So, continue on. | |
4795 | * We will report success if all the i/o aborts successfully. | |
4796 | */ | |
4797 | status = lpfc_reset_flush_io_context(vport, tgt_id, lun_id, | |
4798 | LPFC_CTX_LUN); | |
4799 | return status; | |
4800 | } | |
4801 | ||
4802 | /** | |
4803 | * lpfc_target_reset_handler - scsi_host_template eh_target_reset entry point | |
4804 | * @cmnd: Pointer to scsi_cmnd data structure. | |
4805 | * | |
4806 | * This routine does a target reset by sending a TARGET_RESET task management | |
4807 | * command. | |
4808 | * | |
4809 | * Return code : | |
4810 | * 0x2003 - Error | |
4811 | * 0x2002 - Success | |
4812 | **/ | |
4813 | static int | |
4814 | lpfc_target_reset_handler(struct scsi_cmnd *cmnd) | |
4815 | { | |
4816 | struct Scsi_Host *shost = cmnd->device->host; | |
4817 | struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; | |
4818 | struct lpfc_rport_data *rdata = cmnd->device->hostdata; | |
1c6f4ef5 | 4819 | struct lpfc_nodelist *pnode; |
bbb9d180 JS |
4820 | unsigned tgt_id = cmnd->device->id; |
4821 | unsigned int lun_id = cmnd->device->lun; | |
4822 | struct lpfc_scsi_event_header scsi_event; | |
4823 | int status; | |
4824 | ||
1c6f4ef5 JS |
4825 | if (!rdata) { |
4826 | lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, | |
4827 | "0799 Target Reset rport failure: rdata x%p\n", rdata); | |
4828 | return FAILED; | |
4829 | } | |
4830 | pnode = rdata->pnode; | |
589a52d6 JS |
4831 | status = fc_block_scsi_eh(cmnd); |
4832 | if (status) | |
4833 | return status; | |
bbb9d180 JS |
4834 | |
4835 | status = lpfc_chk_tgt_mapped(vport, cmnd); | |
4836 | if (status == FAILED) { | |
4837 | lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, | |
4838 | "0722 Target Reset rport failure: rdata x%p\n", rdata); | |
4839 | return FAILED; | |
4840 | } | |
4841 | ||
4842 | scsi_event.event_type = FC_REG_SCSI_EVENT; | |
4843 | scsi_event.subcategory = LPFC_EVENT_TGTRESET; | |
4844 | scsi_event.lun = 0; | |
4845 | memcpy(scsi_event.wwpn, &pnode->nlp_portname, sizeof(struct lpfc_name)); | |
4846 | memcpy(scsi_event.wwnn, &pnode->nlp_nodename, sizeof(struct lpfc_name)); | |
4847 | ||
4848 | fc_host_post_vendor_event(shost, fc_get_event_number(), | |
4849 | sizeof(scsi_event), (char *)&scsi_event, LPFC_NL_VENDOR_ID); | |
4850 | ||
4851 | status = lpfc_send_taskmgmt(vport, rdata, tgt_id, lun_id, | |
4852 | FCP_TARGET_RESET); | |
4853 | ||
4854 | lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, | |
4855 | "0723 SCSI layer issued Target Reset (%d, %d) " | |
4856 | "return x%x\n", tgt_id, lun_id, status); | |
4857 | ||
4858 | /* | |
4859 | * We have to clean up i/o as : they may be orphaned by the TMF; | |
4860 | * or if the TMF failed, they may be in an indeterminate state. | |
4861 | * So, continue on. | |
4862 | * We will report success if all the i/o aborts successfully. | |
4863 | */ | |
4864 | status = lpfc_reset_flush_io_context(vport, tgt_id, lun_id, | |
4865 | LPFC_CTX_TGT); | |
4866 | return status; | |
dea3101e | 4867 | } |
4868 | ||
9bad7671 | 4869 | /** |
3621a710 | 4870 | * lpfc_bus_reset_handler - scsi_host_template eh_bus_reset_handler entry point |
9bad7671 JS |
4871 | * @cmnd: Pointer to scsi_cmnd data structure. |
4872 | * | |
bbb9d180 JS |
4873 | * This routine does target reset to all targets on @cmnd->device->host. |
4874 | * This emulates Parallel SCSI Bus Reset Semantics. | |
9bad7671 | 4875 | * |
bbb9d180 JS |
4876 | * Return code : |
4877 | * 0x2003 - Error | |
4878 | * 0x2002 - Success | |
9bad7671 | 4879 | **/ |
94d0e7b8 | 4880 | static int |
7054a606 | 4881 | lpfc_bus_reset_handler(struct scsi_cmnd *cmnd) |
dea3101e | 4882 | { |
2e0fef85 JS |
4883 | struct Scsi_Host *shost = cmnd->device->host; |
4884 | struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; | |
dea3101e | 4885 | struct lpfc_nodelist *ndlp = NULL; |
ea2151b4 | 4886 | struct lpfc_scsi_event_header scsi_event; |
bbb9d180 JS |
4887 | int match; |
4888 | int ret = SUCCESS, status, i; | |
ea2151b4 JS |
4889 | |
4890 | scsi_event.event_type = FC_REG_SCSI_EVENT; | |
4891 | scsi_event.subcategory = LPFC_EVENT_BUSRESET; | |
4892 | scsi_event.lun = 0; | |
4893 | memcpy(scsi_event.wwpn, &vport->fc_portname, sizeof(struct lpfc_name)); | |
4894 | memcpy(scsi_event.wwnn, &vport->fc_nodename, sizeof(struct lpfc_name)); | |
4895 | ||
bbb9d180 JS |
4896 | fc_host_post_vendor_event(shost, fc_get_event_number(), |
4897 | sizeof(scsi_event), (char *)&scsi_event, LPFC_NL_VENDOR_ID); | |
dea3101e | 4898 | |
bf08611b JS |
4899 | status = fc_block_scsi_eh(cmnd); |
4900 | if (status) | |
4901 | return status; | |
bbb9d180 | 4902 | |
dea3101e | 4903 | /* |
4904 | * Since the driver manages a single bus device, reset all | |
4905 | * targets known to the driver. Should any target reset | |
4906 | * fail, this routine returns failure to the midlayer. | |
4907 | */ | |
e17da18e | 4908 | for (i = 0; i < LPFC_MAX_TARGET; i++) { |
685f0bf7 | 4909 | /* Search for mapped node by target ID */ |
dea3101e | 4910 | match = 0; |
2e0fef85 JS |
4911 | spin_lock_irq(shost->host_lock); |
4912 | list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { | |
e47c9093 JS |
4913 | if (!NLP_CHK_NODE_ACT(ndlp)) |
4914 | continue; | |
685f0bf7 | 4915 | if (ndlp->nlp_state == NLP_STE_MAPPED_NODE && |
915caaaf | 4916 | ndlp->nlp_sid == i && |
685f0bf7 | 4917 | ndlp->rport) { |
dea3101e | 4918 | match = 1; |
4919 | break; | |
4920 | } | |
4921 | } | |
2e0fef85 | 4922 | spin_unlock_irq(shost->host_lock); |
dea3101e | 4923 | if (!match) |
4924 | continue; | |
bbb9d180 JS |
4925 | |
4926 | status = lpfc_send_taskmgmt(vport, ndlp->rport->dd_data, | |
4927 | i, 0, FCP_TARGET_RESET); | |
4928 | ||
4929 | if (status != SUCCESS) { | |
e8b62011 JS |
4930 | lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, |
4931 | "0700 Bus Reset on target %d failed\n", | |
4932 | i); | |
915caaaf | 4933 | ret = FAILED; |
dea3101e | 4934 | } |
4935 | } | |
6175c02a | 4936 | /* |
bbb9d180 JS |
4937 | * We have to clean up i/o as : they may be orphaned by the TMFs |
4938 | * above; or if any of the TMFs failed, they may be in an | |
4939 | * indeterminate state. | |
4940 | * We will report success if all the i/o aborts successfully. | |
6175c02a | 4941 | */ |
bbb9d180 JS |
4942 | |
4943 | status = lpfc_reset_flush_io_context(vport, 0, 0, LPFC_CTX_HOST); | |
4944 | if (status != SUCCESS) | |
0bd4ca25 | 4945 | ret = FAILED; |
bbb9d180 | 4946 | |
e8b62011 JS |
4947 | lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, |
4948 | "0714 SCSI layer issued Bus Reset Data: x%x\n", ret); | |
dea3101e | 4949 | return ret; |
4950 | } | |
4951 | ||
9bad7671 | 4952 | /** |
3621a710 | 4953 | * lpfc_slave_alloc - scsi_host_template slave_alloc entry point |
9bad7671 JS |
4954 | * @sdev: Pointer to scsi_device. |
4955 | * | |
4956 | * This routine populates the cmds_per_lun count + 2 scsi_bufs into this host's | |
4957 | * globally available list of scsi buffers. This routine also makes sure scsi | |
4958 | * buffer is not allocated more than HBA limit conveyed to midlayer. This list | |
4959 | * of scsi buffer exists for the lifetime of the driver. | |
4960 | * | |
4961 | * Return codes: | |
4962 | * non-0 - Error | |
4963 | * 0 - Success | |
4964 | **/ | |
dea3101e | 4965 | static int |
4966 | lpfc_slave_alloc(struct scsi_device *sdev) | |
4967 | { | |
2e0fef85 JS |
4968 | struct lpfc_vport *vport = (struct lpfc_vport *) sdev->host->hostdata; |
4969 | struct lpfc_hba *phba = vport->phba; | |
19a7b4ae | 4970 | struct fc_rport *rport = starget_to_rport(scsi_target(sdev)); |
3772a991 | 4971 | uint32_t total = 0; |
dea3101e | 4972 | uint32_t num_to_alloc = 0; |
3772a991 | 4973 | int num_allocated = 0; |
d7c47992 | 4974 | uint32_t sdev_cnt; |
dea3101e | 4975 | |
19a7b4ae | 4976 | if (!rport || fc_remote_port_chkready(rport)) |
dea3101e | 4977 | return -ENXIO; |
4978 | ||
19a7b4ae | 4979 | sdev->hostdata = rport->dd_data; |
d7c47992 | 4980 | sdev_cnt = atomic_inc_return(&phba->sdev_cnt); |
dea3101e | 4981 | |
4982 | /* | |
4983 | * Populate the cmds_per_lun count scsi_bufs into this host's globally | |
4984 | * available list of scsi buffers. Don't allocate more than the | |
a784efbf JSEC |
4985 | * HBA limit conveyed to the midlayer via the host structure. The |
4986 | * formula accounts for the lun_queue_depth + error handlers + 1 | |
4987 | * extra. This list of scsi bufs exists for the lifetime of the driver. | |
dea3101e | 4988 | */ |
4989 | total = phba->total_scsi_bufs; | |
3de2a653 | 4990 | num_to_alloc = vport->cfg_lun_queue_depth + 2; |
92d7f7b0 | 4991 | |
d7c47992 JS |
4992 | /* If allocated buffers are enough do nothing */ |
4993 | if ((sdev_cnt * (vport->cfg_lun_queue_depth + 2)) < total) | |
4994 | return 0; | |
4995 | ||
92d7f7b0 JS |
4996 | /* Allow some exchanges to be available always to complete discovery */ |
4997 | if (total >= phba->cfg_hba_queue_depth - LPFC_DISC_IOCB_BUFF_COUNT ) { | |
e8b62011 JS |
4998 | lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP, |
4999 | "0704 At limitation of %d preallocated " | |
5000 | "command buffers\n", total); | |
dea3101e | 5001 | return 0; |
92d7f7b0 JS |
5002 | /* Allow some exchanges to be available always to complete discovery */ |
5003 | } else if (total + num_to_alloc > | |
5004 | phba->cfg_hba_queue_depth - LPFC_DISC_IOCB_BUFF_COUNT ) { | |
e8b62011 JS |
5005 | lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP, |
5006 | "0705 Allocation request of %d " | |
5007 | "command buffers will exceed max of %d. " | |
5008 | "Reducing allocation request to %d.\n", | |
5009 | num_to_alloc, phba->cfg_hba_queue_depth, | |
5010 | (phba->cfg_hba_queue_depth - total)); | |
dea3101e | 5011 | num_to_alloc = phba->cfg_hba_queue_depth - total; |
5012 | } | |
3772a991 JS |
5013 | num_allocated = lpfc_new_scsi_buf(vport, num_to_alloc); |
5014 | if (num_to_alloc != num_allocated) { | |
5015 | lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP, | |
5016 | "0708 Allocation request of %d " | |
5017 | "command buffers did not succeed. " | |
5018 | "Allocated %d buffers.\n", | |
5019 | num_to_alloc, num_allocated); | |
dea3101e | 5020 | } |
1c6f4ef5 JS |
5021 | if (num_allocated > 0) |
5022 | phba->total_scsi_bufs += num_allocated; | |
dea3101e | 5023 | return 0; |
5024 | } | |
5025 | ||
9bad7671 | 5026 | /** |
3621a710 | 5027 | * lpfc_slave_configure - scsi_host_template slave_configure entry point |
9bad7671 JS |
5028 | * @sdev: Pointer to scsi_device. |
5029 | * | |
5030 | * This routine configures following items | |
5031 | * - Tag command queuing support for @sdev if supported. | |
9bad7671 JS |
5032 | * - Enable SLI polling for fcp ring if ENABLE_FCP_RING_POLLING flag is set. |
5033 | * | |
5034 | * Return codes: | |
5035 | * 0 - Success | |
5036 | **/ | |
dea3101e | 5037 | static int |
5038 | lpfc_slave_configure(struct scsi_device *sdev) | |
5039 | { | |
2e0fef85 JS |
5040 | struct lpfc_vport *vport = (struct lpfc_vport *) sdev->host->hostdata; |
5041 | struct lpfc_hba *phba = vport->phba; | |
dea3101e | 5042 | |
5043 | if (sdev->tagged_supported) | |
3de2a653 | 5044 | scsi_activate_tcq(sdev, vport->cfg_lun_queue_depth); |
dea3101e | 5045 | else |
3de2a653 | 5046 | scsi_deactivate_tcq(sdev, vport->cfg_lun_queue_depth); |
dea3101e | 5047 | |
875fbdfe | 5048 | if (phba->cfg_poll & ENABLE_FCP_RING_POLLING) { |
45ed1190 JS |
5049 | lpfc_sli_handle_fast_ring_event(phba, |
5050 | &phba->sli.ring[LPFC_FCP_RING], HA_R0RE_REQ); | |
875fbdfe JSEC |
5051 | if (phba->cfg_poll & DISABLE_FCP_RING_INT) |
5052 | lpfc_poll_rearm_timer(phba); | |
5053 | } | |
5054 | ||
dea3101e | 5055 | return 0; |
5056 | } | |
5057 | ||
9bad7671 | 5058 | /** |
3621a710 | 5059 | * lpfc_slave_destroy - slave_destroy entry point of SHT data structure |
9bad7671 JS |
5060 | * @sdev: Pointer to scsi_device. |
5061 | * | |
5062 | * This routine sets @sdev hostatdata filed to null. | |
5063 | **/ | |
dea3101e | 5064 | static void |
5065 | lpfc_slave_destroy(struct scsi_device *sdev) | |
5066 | { | |
d7c47992 JS |
5067 | struct lpfc_vport *vport = (struct lpfc_vport *) sdev->host->hostdata; |
5068 | struct lpfc_hba *phba = vport->phba; | |
5069 | atomic_dec(&phba->sdev_cnt); | |
dea3101e | 5070 | sdev->hostdata = NULL; |
5071 | return; | |
5072 | } | |
5073 | ||
92d7f7b0 | 5074 | |
dea3101e | 5075 | struct scsi_host_template lpfc_template = { |
5076 | .module = THIS_MODULE, | |
5077 | .name = LPFC_DRIVER_NAME, | |
5078 | .info = lpfc_info, | |
5079 | .queuecommand = lpfc_queuecommand, | |
5080 | .eh_abort_handler = lpfc_abort_handler, | |
bbb9d180 JS |
5081 | .eh_device_reset_handler = lpfc_device_reset_handler, |
5082 | .eh_target_reset_handler = lpfc_target_reset_handler, | |
7054a606 | 5083 | .eh_bus_reset_handler = lpfc_bus_reset_handler, |
dea3101e | 5084 | .slave_alloc = lpfc_slave_alloc, |
5085 | .slave_configure = lpfc_slave_configure, | |
5086 | .slave_destroy = lpfc_slave_destroy, | |
47a8617c | 5087 | .scan_finished = lpfc_scan_finished, |
dea3101e | 5088 | .this_id = -1, |
83108bd3 | 5089 | .sg_tablesize = LPFC_DEFAULT_SG_SEG_CNT, |
dea3101e | 5090 | .cmd_per_lun = LPFC_CMD_PER_LUN, |
5091 | .use_clustering = ENABLE_CLUSTERING, | |
2e0fef85 | 5092 | .shost_attrs = lpfc_hba_attrs, |
564b2960 | 5093 | .max_sectors = 0xFFFF, |
f1c3b0fc | 5094 | .vendor_id = LPFC_NL_VENDOR_ID, |
5ffc266e | 5095 | .change_queue_depth = lpfc_change_queue_depth, |
dea3101e | 5096 | }; |
3de2a653 JS |
5097 | |
5098 | struct scsi_host_template lpfc_vport_template = { | |
5099 | .module = THIS_MODULE, | |
5100 | .name = LPFC_DRIVER_NAME, | |
5101 | .info = lpfc_info, | |
5102 | .queuecommand = lpfc_queuecommand, | |
5103 | .eh_abort_handler = lpfc_abort_handler, | |
bbb9d180 JS |
5104 | .eh_device_reset_handler = lpfc_device_reset_handler, |
5105 | .eh_target_reset_handler = lpfc_target_reset_handler, | |
3de2a653 JS |
5106 | .eh_bus_reset_handler = lpfc_bus_reset_handler, |
5107 | .slave_alloc = lpfc_slave_alloc, | |
5108 | .slave_configure = lpfc_slave_configure, | |
5109 | .slave_destroy = lpfc_slave_destroy, | |
5110 | .scan_finished = lpfc_scan_finished, | |
5111 | .this_id = -1, | |
83108bd3 | 5112 | .sg_tablesize = LPFC_DEFAULT_SG_SEG_CNT, |
3de2a653 JS |
5113 | .cmd_per_lun = LPFC_CMD_PER_LUN, |
5114 | .use_clustering = ENABLE_CLUSTERING, | |
5115 | .shost_attrs = lpfc_vport_attrs, | |
5116 | .max_sectors = 0xFFFF, | |
5ffc266e | 5117 | .change_queue_depth = lpfc_change_queue_depth, |
3de2a653 | 5118 | }; |