1 | // SPDX-License-Identifier: GPL-2.0-or-later |
2 | /* |
3 | * Driver for Broadcom MPI3 Storage Controllers |
4 | * |
5 | * Copyright (C) 2017-2023 Broadcom Inc. |
6 | * (mailto: mpi3mr-linuxdrv.pdl@broadcom.com) |
7 | * |
8 | */ |
9 | |
10 | #include "mpi3mr.h" |
11 | #include <linux/idr.h> |
12 | |
13 | /* global driver scop variables */ |
14 | LIST_HEAD(mrioc_list); |
15 | DEFINE_SPINLOCK(mrioc_list_lock); |
16 | static DEFINE_IDA(mrioc_ida); |
17 | static int warn_non_secure_ctlr; |
18 | atomic64_t event_counter; |
19 | |
20 | MODULE_AUTHOR(MPI3MR_DRIVER_AUTHOR); |
21 | MODULE_DESCRIPTION(MPI3MR_DRIVER_DESC); |
22 | MODULE_LICENSE(MPI3MR_DRIVER_LICENSE); |
23 | MODULE_VERSION(MPI3MR_DRIVER_VERSION); |
24 | |
25 | /* Module parameters*/ |
26 | int prot_mask = -1; |
27 | module_param(prot_mask, int, 0); |
28 | MODULE_PARM_DESC(prot_mask, "Host protection capabilities mask, def=0x07" ); |
29 | |
30 | static int prot_guard_mask = 3; |
31 | module_param(prot_guard_mask, int, 0); |
32 | MODULE_PARM_DESC(prot_guard_mask, " Host protection guard mask, def=3" ); |
33 | static int logging_level; |
34 | module_param(logging_level, int, 0); |
35 | MODULE_PARM_DESC(logging_level, |
36 | " bits for enabling additional logging info (default=0)" ); |
37 | static int max_sgl_entries = MPI3MR_DEFAULT_SGL_ENTRIES; |
38 | module_param(max_sgl_entries, int, 0444); |
39 | MODULE_PARM_DESC(max_sgl_entries, |
40 | "Preferred max number of SG entries to be used for a single I/O\n" |
41 | "The actual value will be determined by the driver\n" |
42 | "(Minimum=256, Maximum=2048, default=256)" ); |
43 | |
44 | /* Forward declarations*/ |
45 | static void mpi3mr_send_event_ack(struct mpi3mr_ioc *mrioc, u8 event, |
46 | struct mpi3mr_drv_cmd *cmdparam, u32 event_ctx); |
47 | |
48 | #define MPI3MR_DRIVER_EVENT_TG_QD_REDUCTION (0xFFFF) |
49 | |
50 | #define MPI3_EVENT_WAIT_FOR_DEVICES_TO_REFRESH (0xFFFE) |
51 | |
52 | /** |
53 | * mpi3mr_host_tag_for_scmd - Get host tag for a scmd |
54 | * @mrioc: Adapter instance reference |
55 | * @scmd: SCSI command reference |
56 | * |
57 | * Calculate the host tag based on block tag for a given scmd. |
58 | * |
59 | * Return: Valid host tag or MPI3MR_HOSTTAG_INVALID. |
60 | */ |
61 | static u16 mpi3mr_host_tag_for_scmd(struct mpi3mr_ioc *mrioc, |
62 | struct scsi_cmnd *scmd) |
63 | { |
64 | struct scmd_priv *priv = NULL; |
65 | u32 unique_tag; |
66 | u16 host_tag, hw_queue; |
67 | |
68 | unique_tag = blk_mq_unique_tag(rq: scsi_cmd_to_rq(scmd)); |
69 | |
70 | hw_queue = blk_mq_unique_tag_to_hwq(unique_tag); |
71 | if (hw_queue >= mrioc->num_op_reply_q) |
72 | return MPI3MR_HOSTTAG_INVALID; |
73 | host_tag = blk_mq_unique_tag_to_tag(unique_tag); |
74 | |
75 | if (WARN_ON(host_tag >= mrioc->max_host_ios)) |
76 | return MPI3MR_HOSTTAG_INVALID; |
77 | |
78 | priv = scsi_cmd_priv(cmd: scmd); |
79 | /*host_tag 0 is invalid hence incrementing by 1*/ |
80 | priv->host_tag = host_tag + 1; |
81 | priv->scmd = scmd; |
82 | priv->in_lld_scope = 1; |
83 | priv->req_q_idx = hw_queue; |
84 | priv->meta_chain_idx = -1; |
85 | priv->chain_idx = -1; |
86 | priv->meta_sg_valid = 0; |
87 | return priv->host_tag; |
88 | } |
89 | |
90 | /** |
91 | * mpi3mr_scmd_from_host_tag - Get SCSI command from host tag |
92 | * @mrioc: Adapter instance reference |
93 | * @host_tag: Host tag |
94 | * @qidx: Operational queue index |
95 | * |
96 | * Identify the block tag from the host tag and queue index and |
97 | * retrieve associated scsi command using scsi_host_find_tag(). |
98 | * |
99 | * Return: SCSI command reference or NULL. |
100 | */ |
101 | static struct scsi_cmnd *mpi3mr_scmd_from_host_tag( |
102 | struct mpi3mr_ioc *mrioc, u16 host_tag, u16 qidx) |
103 | { |
104 | struct scsi_cmnd *scmd = NULL; |
105 | struct scmd_priv *priv = NULL; |
106 | u32 unique_tag = host_tag - 1; |
107 | |
108 | if (WARN_ON(host_tag > mrioc->max_host_ios)) |
109 | goto out; |
110 | |
111 | unique_tag |= (qidx << BLK_MQ_UNIQUE_TAG_BITS); |
112 | |
113 | scmd = scsi_host_find_tag(shost: mrioc->shost, tag: unique_tag); |
114 | if (scmd) { |
115 | priv = scsi_cmd_priv(cmd: scmd); |
116 | if (!priv->in_lld_scope) |
117 | scmd = NULL; |
118 | } |
119 | out: |
120 | return scmd; |
121 | } |
122 | |
123 | /** |
124 | * mpi3mr_clear_scmd_priv - Cleanup SCSI command private date |
125 | * @mrioc: Adapter instance reference |
126 | * @scmd: SCSI command reference |
127 | * |
128 | * Invalidate the SCSI command private data to mark the command |
129 | * is not in LLD scope anymore. |
130 | * |
131 | * Return: Nothing. |
132 | */ |
133 | static void mpi3mr_clear_scmd_priv(struct mpi3mr_ioc *mrioc, |
134 | struct scsi_cmnd *scmd) |
135 | { |
136 | struct scmd_priv *priv = NULL; |
137 | |
138 | priv = scsi_cmd_priv(cmd: scmd); |
139 | |
140 | if (WARN_ON(priv->in_lld_scope == 0)) |
141 | return; |
142 | priv->host_tag = MPI3MR_HOSTTAG_INVALID; |
143 | priv->req_q_idx = 0xFFFF; |
144 | priv->scmd = NULL; |
145 | priv->in_lld_scope = 0; |
146 | priv->meta_sg_valid = 0; |
147 | if (priv->chain_idx >= 0) { |
148 | clear_bit(nr: priv->chain_idx, addr: mrioc->chain_bitmap); |
149 | priv->chain_idx = -1; |
150 | } |
151 | if (priv->meta_chain_idx >= 0) { |
152 | clear_bit(nr: priv->meta_chain_idx, addr: mrioc->chain_bitmap); |
153 | priv->meta_chain_idx = -1; |
154 | } |
155 | } |
156 | |
157 | static void mpi3mr_dev_rmhs_send_tm(struct mpi3mr_ioc *mrioc, u16 handle, |
158 | struct mpi3mr_drv_cmd *cmdparam, u8 iou_rc); |
159 | static void mpi3mr_fwevt_worker(struct work_struct *work); |
160 | |
161 | /** |
162 | * mpi3mr_fwevt_free - firmware event memory dealloctor |
163 | * @r: k reference pointer of the firmware event |
164 | * |
165 | * Free firmware event memory when no reference. |
166 | */ |
167 | static void mpi3mr_fwevt_free(struct kref *r) |
168 | { |
169 | kfree(container_of(r, struct mpi3mr_fwevt, ref_count)); |
170 | } |
171 | |
172 | /** |
173 | * mpi3mr_fwevt_get - k reference incrementor |
174 | * @fwevt: Firmware event reference |
175 | * |
176 | * Increment firmware event reference count. |
177 | */ |
178 | static void mpi3mr_fwevt_get(struct mpi3mr_fwevt *fwevt) |
179 | { |
180 | kref_get(kref: &fwevt->ref_count); |
181 | } |
182 | |
183 | /** |
184 | * mpi3mr_fwevt_put - k reference decrementor |
185 | * @fwevt: Firmware event reference |
186 | * |
187 | * decrement firmware event reference count. |
188 | */ |
189 | static void mpi3mr_fwevt_put(struct mpi3mr_fwevt *fwevt) |
190 | { |
191 | kref_put(kref: &fwevt->ref_count, release: mpi3mr_fwevt_free); |
192 | } |
193 | |
194 | /** |
195 | * mpi3mr_alloc_fwevt - Allocate firmware event |
196 | * @len: length of firmware event data to allocate |
197 | * |
198 | * Allocate firmware event with required length and initialize |
199 | * the reference counter. |
200 | * |
201 | * Return: firmware event reference. |
202 | */ |
203 | static struct mpi3mr_fwevt *mpi3mr_alloc_fwevt(int len) |
204 | { |
205 | struct mpi3mr_fwevt *fwevt; |
206 | |
207 | fwevt = kzalloc(size: sizeof(*fwevt) + len, GFP_ATOMIC); |
208 | if (!fwevt) |
209 | return NULL; |
210 | |
211 | kref_init(kref: &fwevt->ref_count); |
212 | return fwevt; |
213 | } |
214 | |
215 | /** |
216 | * mpi3mr_fwevt_add_to_list - Add firmware event to the list |
217 | * @mrioc: Adapter instance reference |
218 | * @fwevt: Firmware event reference |
219 | * |
220 | * Add the given firmware event to the firmware event list. |
221 | * |
222 | * Return: Nothing. |
223 | */ |
224 | static void mpi3mr_fwevt_add_to_list(struct mpi3mr_ioc *mrioc, |
225 | struct mpi3mr_fwevt *fwevt) |
226 | { |
227 | unsigned long flags; |
228 | |
229 | if (!mrioc->fwevt_worker_thread) |
230 | return; |
231 | |
232 | spin_lock_irqsave(&mrioc->fwevt_lock, flags); |
233 | /* get fwevt reference count while adding it to fwevt_list */ |
234 | mpi3mr_fwevt_get(fwevt); |
235 | INIT_LIST_HEAD(list: &fwevt->list); |
236 | list_add_tail(new: &fwevt->list, head: &mrioc->fwevt_list); |
237 | INIT_WORK(&fwevt->work, mpi3mr_fwevt_worker); |
238 | /* get fwevt reference count while enqueueing it to worker queue */ |
239 | mpi3mr_fwevt_get(fwevt); |
240 | queue_work(wq: mrioc->fwevt_worker_thread, work: &fwevt->work); |
241 | spin_unlock_irqrestore(lock: &mrioc->fwevt_lock, flags); |
242 | } |
243 | |
244 | /** |
245 | * mpi3mr_fwevt_del_from_list - Delete firmware event from list |
246 | * @mrioc: Adapter instance reference |
247 | * @fwevt: Firmware event reference |
248 | * |
249 | * Delete the given firmware event from the firmware event list. |
250 | * |
251 | * Return: Nothing. |
252 | */ |
253 | static void mpi3mr_fwevt_del_from_list(struct mpi3mr_ioc *mrioc, |
254 | struct mpi3mr_fwevt *fwevt) |
255 | { |
256 | unsigned long flags; |
257 | |
258 | spin_lock_irqsave(&mrioc->fwevt_lock, flags); |
259 | if (!list_empty(head: &fwevt->list)) { |
260 | list_del_init(entry: &fwevt->list); |
261 | /* |
262 | * Put fwevt reference count after |
263 | * removing it from fwevt_list |
264 | */ |
265 | mpi3mr_fwevt_put(fwevt); |
266 | } |
267 | spin_unlock_irqrestore(lock: &mrioc->fwevt_lock, flags); |
268 | } |
269 | |
270 | /** |
271 | * mpi3mr_dequeue_fwevt - Dequeue firmware event from the list |
272 | * @mrioc: Adapter instance reference |
273 | * |
274 | * Dequeue a firmware event from the firmware event list. |
275 | * |
276 | * Return: firmware event. |
277 | */ |
278 | static struct mpi3mr_fwevt *mpi3mr_dequeue_fwevt( |
279 | struct mpi3mr_ioc *mrioc) |
280 | { |
281 | unsigned long flags; |
282 | struct mpi3mr_fwevt *fwevt = NULL; |
283 | |
284 | spin_lock_irqsave(&mrioc->fwevt_lock, flags); |
285 | if (!list_empty(head: &mrioc->fwevt_list)) { |
286 | fwevt = list_first_entry(&mrioc->fwevt_list, |
287 | struct mpi3mr_fwevt, list); |
288 | list_del_init(entry: &fwevt->list); |
289 | /* |
290 | * Put fwevt reference count after |
291 | * removing it from fwevt_list |
292 | */ |
293 | mpi3mr_fwevt_put(fwevt); |
294 | } |
295 | spin_unlock_irqrestore(lock: &mrioc->fwevt_lock, flags); |
296 | |
297 | return fwevt; |
298 | } |
299 | |
300 | /** |
301 | * mpi3mr_cancel_work - cancel firmware event |
302 | * @fwevt: fwevt object which needs to be canceled |
303 | * |
304 | * Return: Nothing. |
305 | */ |
306 | static void mpi3mr_cancel_work(struct mpi3mr_fwevt *fwevt) |
307 | { |
308 | /* |
309 | * Wait on the fwevt to complete. If this returns 1, then |
310 | * the event was never executed. |
311 | * |
312 | * If it did execute, we wait for it to finish, and the put will |
313 | * happen from mpi3mr_process_fwevt() |
314 | */ |
315 | if (cancel_work_sync(work: &fwevt->work)) { |
316 | /* |
317 | * Put fwevt reference count after |
318 | * dequeuing it from worker queue |
319 | */ |
320 | mpi3mr_fwevt_put(fwevt); |
321 | /* |
322 | * Put fwevt reference count to neutralize |
323 | * kref_init increment |
324 | */ |
325 | mpi3mr_fwevt_put(fwevt); |
326 | } |
327 | } |
328 | |
329 | /** |
330 | * mpi3mr_cleanup_fwevt_list - Cleanup firmware event list |
331 | * @mrioc: Adapter instance reference |
332 | * |
333 | * Flush all pending firmware events from the firmware event |
334 | * list. |
335 | * |
336 | * Return: Nothing. |
337 | */ |
338 | void mpi3mr_cleanup_fwevt_list(struct mpi3mr_ioc *mrioc) |
339 | { |
340 | struct mpi3mr_fwevt *fwevt = NULL; |
341 | |
342 | if ((list_empty(head: &mrioc->fwevt_list) && !mrioc->current_event) || |
343 | !mrioc->fwevt_worker_thread) |
344 | return; |
345 | |
346 | while ((fwevt = mpi3mr_dequeue_fwevt(mrioc))) |
347 | mpi3mr_cancel_work(fwevt); |
348 | |
349 | if (mrioc->current_event) { |
350 | fwevt = mrioc->current_event; |
351 | /* |
352 | * Don't call cancel_work_sync() API for the |
353 | * fwevt work if the controller reset is |
354 | * get called as part of processing the |
355 | * same fwevt work (or) when worker thread is |
356 | * waiting for device add/remove APIs to complete. |
357 | * Otherwise we will see deadlock. |
358 | */ |
359 | if (current_work() == &fwevt->work || fwevt->pending_at_sml) { |
360 | fwevt->discard = 1; |
361 | return; |
362 | } |
363 | |
364 | mpi3mr_cancel_work(fwevt); |
365 | } |
366 | } |
367 | |
368 | /** |
369 | * mpi3mr_queue_qd_reduction_event - Queue TG QD reduction event |
370 | * @mrioc: Adapter instance reference |
371 | * @tg: Throttle group information pointer |
372 | * |
373 | * Accessor to queue on synthetically generated driver event to |
374 | * the event worker thread, the driver event will be used to |
375 | * reduce the QD of all VDs in the TG from the worker thread. |
376 | * |
377 | * Return: None. |
378 | */ |
379 | static void mpi3mr_queue_qd_reduction_event(struct mpi3mr_ioc *mrioc, |
380 | struct mpi3mr_throttle_group_info *tg) |
381 | { |
382 | struct mpi3mr_fwevt *fwevt; |
383 | u16 sz = sizeof(struct mpi3mr_throttle_group_info *); |
384 | |
385 | /* |
386 | * If the QD reduction event is already queued due to throttle and if |
387 | * the QD is not restored through device info change event |
388 | * then dont queue further reduction events |
389 | */ |
390 | if (tg->fw_qd != tg->modified_qd) |
391 | return; |
392 | |
393 | fwevt = mpi3mr_alloc_fwevt(len: sz); |
394 | if (!fwevt) { |
395 | ioc_warn(mrioc, "failed to queue TG QD reduction event\n" ); |
396 | return; |
397 | } |
398 | *(struct mpi3mr_throttle_group_info **)fwevt->event_data = tg; |
399 | fwevt->mrioc = mrioc; |
400 | fwevt->event_id = MPI3MR_DRIVER_EVENT_TG_QD_REDUCTION; |
401 | fwevt->send_ack = 0; |
402 | fwevt->process_evt = 1; |
403 | fwevt->evt_ctx = 0; |
404 | fwevt->event_data_size = sz; |
405 | tg->modified_qd = max_t(u16, (tg->fw_qd * tg->qd_reduction) / 10, 8); |
406 | |
407 | dprint_event_bh(mrioc, "qd reduction event queued for tg_id(%d)\n" , |
408 | tg->id); |
409 | mpi3mr_fwevt_add_to_list(mrioc, fwevt); |
410 | } |
411 | |
412 | /** |
413 | * mpi3mr_invalidate_devhandles -Invalidate device handles |
414 | * @mrioc: Adapter instance reference |
415 | * |
416 | * Invalidate the device handles in the target device structures |
417 | * . Called post reset prior to reinitializing the controller. |
418 | * |
419 | * Return: Nothing. |
420 | */ |
421 | void mpi3mr_invalidate_devhandles(struct mpi3mr_ioc *mrioc) |
422 | { |
423 | struct mpi3mr_tgt_dev *tgtdev; |
424 | struct mpi3mr_stgt_priv_data *tgt_priv; |
425 | |
426 | list_for_each_entry(tgtdev, &mrioc->tgtdev_list, list) { |
427 | tgtdev->dev_handle = MPI3MR_INVALID_DEV_HANDLE; |
428 | if (tgtdev->starget && tgtdev->starget->hostdata) { |
429 | tgt_priv = tgtdev->starget->hostdata; |
430 | tgt_priv->dev_handle = MPI3MR_INVALID_DEV_HANDLE; |
431 | tgt_priv->io_throttle_enabled = 0; |
432 | tgt_priv->io_divert = 0; |
433 | tgt_priv->throttle_group = NULL; |
434 | tgt_priv->wslen = 0; |
435 | if (tgtdev->host_exposed) |
436 | atomic_set(v: &tgt_priv->block_io, i: 1); |
437 | } |
438 | } |
439 | } |
440 | |
441 | /** |
442 | * mpi3mr_print_scmd - print individual SCSI command |
443 | * @rq: Block request |
444 | * @data: Adapter instance reference |
445 | * |
446 | * Print the SCSI command details if it is in LLD scope. |
447 | * |
448 | * Return: true always. |
449 | */ |
450 | static bool mpi3mr_print_scmd(struct request *rq, void *data) |
451 | { |
452 | struct mpi3mr_ioc *mrioc = (struct mpi3mr_ioc *)data; |
453 | struct scsi_cmnd *scmd = blk_mq_rq_to_pdu(rq); |
454 | struct scmd_priv *priv = NULL; |
455 | |
456 | if (scmd) { |
457 | priv = scsi_cmd_priv(cmd: scmd); |
458 | if (!priv->in_lld_scope) |
459 | goto out; |
460 | |
461 | ioc_info(mrioc, "%s :Host Tag = %d, qid = %d\n" , |
462 | __func__, priv->host_tag, priv->req_q_idx + 1); |
463 | scsi_print_command(scmd); |
464 | } |
465 | |
466 | out: |
467 | return(true); |
468 | } |
469 | |
470 | /** |
471 | * mpi3mr_flush_scmd - Flush individual SCSI command |
472 | * @rq: Block request |
473 | * @data: Adapter instance reference |
474 | * |
475 | * Return the SCSI command to the upper layers if it is in LLD |
476 | * scope. |
477 | * |
478 | * Return: true always. |
479 | */ |
480 | |
481 | static bool mpi3mr_flush_scmd(struct request *rq, void *data) |
482 | { |
483 | struct mpi3mr_ioc *mrioc = (struct mpi3mr_ioc *)data; |
484 | struct scsi_cmnd *scmd = blk_mq_rq_to_pdu(rq); |
485 | struct scmd_priv *priv = NULL; |
486 | |
487 | if (scmd) { |
488 | priv = scsi_cmd_priv(cmd: scmd); |
489 | if (!priv->in_lld_scope) |
490 | goto out; |
491 | |
492 | if (priv->meta_sg_valid) |
493 | dma_unmap_sg(&mrioc->pdev->dev, scsi_prot_sglist(scmd), |
494 | scsi_prot_sg_count(scmd), scmd->sc_data_direction); |
495 | mpi3mr_clear_scmd_priv(mrioc, scmd); |
496 | scsi_dma_unmap(cmd: scmd); |
497 | scmd->result = DID_RESET << 16; |
498 | scsi_print_command(scmd); |
499 | scsi_done(cmd: scmd); |
500 | mrioc->flush_io_count++; |
501 | } |
502 | |
503 | out: |
504 | return(true); |
505 | } |
506 | |
507 | /** |
508 | * mpi3mr_count_dev_pending - Count commands pending for a lun |
509 | * @rq: Block request |
510 | * @data: SCSI device reference |
511 | * |
512 | * This is an iterator function called for each SCSI command in |
513 | * a host and if the command is pending in the LLD for the |
514 | * specific device(lun) then device specific pending I/O counter |
515 | * is updated in the device structure. |
516 | * |
517 | * Return: true always. |
518 | */ |
519 | |
520 | static bool mpi3mr_count_dev_pending(struct request *rq, void *data) |
521 | { |
522 | struct scsi_device *sdev = (struct scsi_device *)data; |
523 | struct mpi3mr_sdev_priv_data *sdev_priv_data = sdev->hostdata; |
524 | struct scsi_cmnd *scmd = blk_mq_rq_to_pdu(rq); |
525 | struct scmd_priv *priv; |
526 | |
527 | if (scmd) { |
528 | priv = scsi_cmd_priv(cmd: scmd); |
529 | if (!priv->in_lld_scope) |
530 | goto out; |
531 | if (scmd->device == sdev) |
532 | sdev_priv_data->pend_count++; |
533 | } |
534 | |
535 | out: |
536 | return true; |
537 | } |
538 | |
539 | /** |
540 | * mpi3mr_count_tgt_pending - Count commands pending for target |
541 | * @rq: Block request |
542 | * @data: SCSI target reference |
543 | * |
544 | * This is an iterator function called for each SCSI command in |
545 | * a host and if the command is pending in the LLD for the |
546 | * specific target then target specific pending I/O counter is |
547 | * updated in the target structure. |
548 | * |
549 | * Return: true always. |
550 | */ |
551 | |
552 | static bool mpi3mr_count_tgt_pending(struct request *rq, void *data) |
553 | { |
554 | struct scsi_target *starget = (struct scsi_target *)data; |
555 | struct mpi3mr_stgt_priv_data *stgt_priv_data = starget->hostdata; |
556 | struct scsi_cmnd *scmd = blk_mq_rq_to_pdu(rq); |
557 | struct scmd_priv *priv; |
558 | |
559 | if (scmd) { |
560 | priv = scsi_cmd_priv(cmd: scmd); |
561 | if (!priv->in_lld_scope) |
562 | goto out; |
563 | if (scmd->device && (scsi_target(sdev: scmd->device) == starget)) |
564 | stgt_priv_data->pend_count++; |
565 | } |
566 | |
567 | out: |
568 | return true; |
569 | } |
570 | |
571 | /** |
572 | * mpi3mr_flush_host_io - Flush host I/Os |
573 | * @mrioc: Adapter instance reference |
574 | * |
575 | * Flush all of the pending I/Os by calling |
576 | * blk_mq_tagset_busy_iter() for each possible tag. This is |
577 | * executed post controller reset |
578 | * |
579 | * Return: Nothing. |
580 | */ |
581 | void mpi3mr_flush_host_io(struct mpi3mr_ioc *mrioc) |
582 | { |
583 | struct Scsi_Host *shost = mrioc->shost; |
584 | |
585 | mrioc->flush_io_count = 0; |
586 | ioc_info(mrioc, "%s :Flushing Host I/O cmds post reset\n" , __func__); |
587 | blk_mq_tagset_busy_iter(tagset: &shost->tag_set, |
588 | fn: mpi3mr_flush_scmd, priv: (void *)mrioc); |
589 | ioc_info(mrioc, "%s :Flushed %d Host I/O cmds\n" , __func__, |
590 | mrioc->flush_io_count); |
591 | } |
592 | |
593 | /** |
594 | * mpi3mr_flush_cmds_for_unrecovered_controller - Flush all pending cmds |
595 | * @mrioc: Adapter instance reference |
596 | * |
597 | * This function waits for currently running IO poll threads to |
598 | * exit and then flushes all host I/Os and any internal pending |
599 | * cmds. This is executed after controller is marked as |
600 | * unrecoverable. |
601 | * |
602 | * Return: Nothing. |
603 | */ |
604 | void mpi3mr_flush_cmds_for_unrecovered_controller(struct mpi3mr_ioc *mrioc) |
605 | { |
606 | struct Scsi_Host *shost = mrioc->shost; |
607 | int i; |
608 | |
609 | if (!mrioc->unrecoverable) |
610 | return; |
611 | |
612 | if (mrioc->op_reply_qinfo) { |
613 | for (i = 0; i < mrioc->num_queues; i++) { |
614 | while (atomic_read(v: &mrioc->op_reply_qinfo[i].in_use)) |
615 | udelay(500); |
616 | atomic_set(v: &mrioc->op_reply_qinfo[i].pend_ios, i: 0); |
617 | } |
618 | } |
619 | mrioc->flush_io_count = 0; |
620 | blk_mq_tagset_busy_iter(tagset: &shost->tag_set, |
621 | fn: mpi3mr_flush_scmd, priv: (void *)mrioc); |
622 | mpi3mr_flush_delayed_cmd_lists(mrioc); |
623 | mpi3mr_flush_drv_cmds(mrioc); |
624 | } |
625 | |
626 | /** |
627 | * mpi3mr_alloc_tgtdev - target device allocator |
628 | * |
629 | * Allocate target device instance and initialize the reference |
630 | * count |
631 | * |
632 | * Return: target device instance. |
633 | */ |
634 | static struct mpi3mr_tgt_dev *mpi3mr_alloc_tgtdev(void) |
635 | { |
636 | struct mpi3mr_tgt_dev *tgtdev; |
637 | |
638 | tgtdev = kzalloc(size: sizeof(*tgtdev), GFP_ATOMIC); |
639 | if (!tgtdev) |
640 | return NULL; |
641 | kref_init(kref: &tgtdev->ref_count); |
642 | return tgtdev; |
643 | } |
644 | |
645 | /** |
646 | * mpi3mr_tgtdev_add_to_list -Add tgtdevice to the list |
647 | * @mrioc: Adapter instance reference |
648 | * @tgtdev: Target device |
649 | * |
650 | * Add the target device to the target device list |
651 | * |
652 | * Return: Nothing. |
653 | */ |
654 | static void mpi3mr_tgtdev_add_to_list(struct mpi3mr_ioc *mrioc, |
655 | struct mpi3mr_tgt_dev *tgtdev) |
656 | { |
657 | unsigned long flags; |
658 | |
659 | spin_lock_irqsave(&mrioc->tgtdev_lock, flags); |
660 | mpi3mr_tgtdev_get(s: tgtdev); |
661 | INIT_LIST_HEAD(list: &tgtdev->list); |
662 | list_add_tail(new: &tgtdev->list, head: &mrioc->tgtdev_list); |
663 | tgtdev->state = MPI3MR_DEV_CREATED; |
664 | spin_unlock_irqrestore(lock: &mrioc->tgtdev_lock, flags); |
665 | } |
666 | |
667 | /** |
668 | * mpi3mr_tgtdev_del_from_list -Delete tgtdevice from the list |
669 | * @mrioc: Adapter instance reference |
670 | * @tgtdev: Target device |
671 | * @must_delete: Must delete the target device from the list irrespective |
672 | * of the device state. |
673 | * |
674 | * Remove the target device from the target device list |
675 | * |
676 | * Return: Nothing. |
677 | */ |
678 | static void mpi3mr_tgtdev_del_from_list(struct mpi3mr_ioc *mrioc, |
679 | struct mpi3mr_tgt_dev *tgtdev, bool must_delete) |
680 | { |
681 | unsigned long flags; |
682 | |
683 | spin_lock_irqsave(&mrioc->tgtdev_lock, flags); |
684 | if ((tgtdev->state == MPI3MR_DEV_REMOVE_HS_STARTED) || (must_delete == true)) { |
685 | if (!list_empty(head: &tgtdev->list)) { |
686 | list_del_init(entry: &tgtdev->list); |
687 | tgtdev->state = MPI3MR_DEV_DELETED; |
688 | mpi3mr_tgtdev_put(s: tgtdev); |
689 | } |
690 | } |
691 | spin_unlock_irqrestore(lock: &mrioc->tgtdev_lock, flags); |
692 | } |
693 | |
694 | /** |
695 | * __mpi3mr_get_tgtdev_by_handle -Get tgtdev from device handle |
696 | * @mrioc: Adapter instance reference |
697 | * @handle: Device handle |
698 | * |
699 | * Accessor to retrieve target device from the device handle. |
700 | * Non Lock version |
701 | * |
702 | * Return: Target device reference. |
703 | */ |
704 | static struct mpi3mr_tgt_dev *__mpi3mr_get_tgtdev_by_handle( |
705 | struct mpi3mr_ioc *mrioc, u16 handle) |
706 | { |
707 | struct mpi3mr_tgt_dev *tgtdev; |
708 | |
709 | assert_spin_locked(&mrioc->tgtdev_lock); |
710 | list_for_each_entry(tgtdev, &mrioc->tgtdev_list, list) |
711 | if (tgtdev->dev_handle == handle) |
712 | goto found_tgtdev; |
713 | return NULL; |
714 | |
715 | found_tgtdev: |
716 | mpi3mr_tgtdev_get(s: tgtdev); |
717 | return tgtdev; |
718 | } |
719 | |
720 | /** |
721 | * mpi3mr_get_tgtdev_by_handle -Get tgtdev from device handle |
722 | * @mrioc: Adapter instance reference |
723 | * @handle: Device handle |
724 | * |
725 | * Accessor to retrieve target device from the device handle. |
726 | * Lock version |
727 | * |
728 | * Return: Target device reference. |
729 | */ |
730 | struct mpi3mr_tgt_dev *mpi3mr_get_tgtdev_by_handle( |
731 | struct mpi3mr_ioc *mrioc, u16 handle) |
732 | { |
733 | struct mpi3mr_tgt_dev *tgtdev; |
734 | unsigned long flags; |
735 | |
736 | spin_lock_irqsave(&mrioc->tgtdev_lock, flags); |
737 | tgtdev = __mpi3mr_get_tgtdev_by_handle(mrioc, handle); |
738 | spin_unlock_irqrestore(lock: &mrioc->tgtdev_lock, flags); |
739 | return tgtdev; |
740 | } |
741 | |
742 | /** |
743 | * __mpi3mr_get_tgtdev_by_perst_id -Get tgtdev from persist ID |
744 | * @mrioc: Adapter instance reference |
745 | * @persist_id: Persistent ID |
746 | * |
747 | * Accessor to retrieve target device from the Persistent ID. |
748 | * Non Lock version |
749 | * |
750 | * Return: Target device reference. |
751 | */ |
752 | static struct mpi3mr_tgt_dev *__mpi3mr_get_tgtdev_by_perst_id( |
753 | struct mpi3mr_ioc *mrioc, u16 persist_id) |
754 | { |
755 | struct mpi3mr_tgt_dev *tgtdev; |
756 | |
757 | assert_spin_locked(&mrioc->tgtdev_lock); |
758 | list_for_each_entry(tgtdev, &mrioc->tgtdev_list, list) |
759 | if (tgtdev->perst_id == persist_id) |
760 | goto found_tgtdev; |
761 | return NULL; |
762 | |
763 | found_tgtdev: |
764 | mpi3mr_tgtdev_get(s: tgtdev); |
765 | return tgtdev; |
766 | } |
767 | |
768 | /** |
769 | * mpi3mr_get_tgtdev_by_perst_id -Get tgtdev from persistent ID |
770 | * @mrioc: Adapter instance reference |
771 | * @persist_id: Persistent ID |
772 | * |
773 | * Accessor to retrieve target device from the Persistent ID. |
774 | * Lock version |
775 | * |
776 | * Return: Target device reference. |
777 | */ |
778 | static struct mpi3mr_tgt_dev *mpi3mr_get_tgtdev_by_perst_id( |
779 | struct mpi3mr_ioc *mrioc, u16 persist_id) |
780 | { |
781 | struct mpi3mr_tgt_dev *tgtdev; |
782 | unsigned long flags; |
783 | |
784 | spin_lock_irqsave(&mrioc->tgtdev_lock, flags); |
785 | tgtdev = __mpi3mr_get_tgtdev_by_perst_id(mrioc, persist_id); |
786 | spin_unlock_irqrestore(lock: &mrioc->tgtdev_lock, flags); |
787 | return tgtdev; |
788 | } |
789 | |
790 | /** |
791 | * __mpi3mr_get_tgtdev_from_tgtpriv -Get tgtdev from tgt private |
792 | * @mrioc: Adapter instance reference |
793 | * @tgt_priv: Target private data |
794 | * |
795 | * Accessor to return target device from the target private |
796 | * data. Non Lock version |
797 | * |
798 | * Return: Target device reference. |
799 | */ |
800 | static struct mpi3mr_tgt_dev *__mpi3mr_get_tgtdev_from_tgtpriv( |
801 | struct mpi3mr_ioc *mrioc, struct mpi3mr_stgt_priv_data *tgt_priv) |
802 | { |
803 | struct mpi3mr_tgt_dev *tgtdev; |
804 | |
805 | assert_spin_locked(&mrioc->tgtdev_lock); |
806 | tgtdev = tgt_priv->tgt_dev; |
807 | if (tgtdev) |
808 | mpi3mr_tgtdev_get(s: tgtdev); |
809 | return tgtdev; |
810 | } |
811 | |
812 | /** |
813 | * mpi3mr_set_io_divert_for_all_vd_in_tg -set divert for TG VDs |
814 | * @mrioc: Adapter instance reference |
815 | * @tg: Throttle group information pointer |
816 | * @divert_value: 1 or 0 |
817 | * |
818 | * Accessor to set io_divert flag for each device associated |
819 | * with the given throttle group with the given value. |
820 | * |
821 | * Return: None. |
822 | */ |
823 | static void mpi3mr_set_io_divert_for_all_vd_in_tg(struct mpi3mr_ioc *mrioc, |
824 | struct mpi3mr_throttle_group_info *tg, u8 divert_value) |
825 | { |
826 | unsigned long flags; |
827 | struct mpi3mr_tgt_dev *tgtdev; |
828 | struct mpi3mr_stgt_priv_data *tgt_priv; |
829 | |
830 | spin_lock_irqsave(&mrioc->tgtdev_lock, flags); |
831 | list_for_each_entry(tgtdev, &mrioc->tgtdev_list, list) { |
832 | if (tgtdev->starget && tgtdev->starget->hostdata) { |
833 | tgt_priv = tgtdev->starget->hostdata; |
834 | if (tgt_priv->throttle_group == tg) |
835 | tgt_priv->io_divert = divert_value; |
836 | } |
837 | } |
838 | spin_unlock_irqrestore(lock: &mrioc->tgtdev_lock, flags); |
839 | } |
840 | |
841 | /** |
842 | * mpi3mr_print_device_event_notice - print notice related to post processing of |
843 | * device event after controller reset. |
844 | * |
845 | * @mrioc: Adapter instance reference |
846 | * @device_add: true for device add event and false for device removal event |
847 | * |
848 | * Return: None. |
849 | */ |
850 | void mpi3mr_print_device_event_notice(struct mpi3mr_ioc *mrioc, |
851 | bool device_add) |
852 | { |
853 | ioc_notice(mrioc, "Device %s was in progress before the reset and\n" , |
854 | (device_add ? "addition" : "removal" )); |
855 | ioc_notice(mrioc, "completed after reset, verify whether the exposed devices\n" ); |
856 | ioc_notice(mrioc, "are matched with attached devices for correctness\n" ); |
857 | } |
858 | |
859 | /** |
860 | * mpi3mr_remove_tgtdev_from_host - Remove dev from upper layers |
861 | * @mrioc: Adapter instance reference |
862 | * @tgtdev: Target device structure |
863 | * |
864 | * Checks whether the device is exposed to upper layers and if it |
865 | * is then remove the device from upper layers by calling |
866 | * scsi_remove_target(). |
867 | * |
868 | * Return: 0 on success, non zero on failure. |
869 | */ |
870 | void mpi3mr_remove_tgtdev_from_host(struct mpi3mr_ioc *mrioc, |
871 | struct mpi3mr_tgt_dev *tgtdev) |
872 | { |
873 | struct mpi3mr_stgt_priv_data *tgt_priv; |
874 | |
875 | ioc_info(mrioc, "%s :Removing handle(0x%04x), wwid(0x%016llx)\n" , |
876 | __func__, tgtdev->dev_handle, (unsigned long long)tgtdev->wwid); |
877 | if (tgtdev->starget && tgtdev->starget->hostdata) { |
878 | tgt_priv = tgtdev->starget->hostdata; |
879 | atomic_set(v: &tgt_priv->block_io, i: 0); |
880 | tgt_priv->dev_handle = MPI3MR_INVALID_DEV_HANDLE; |
881 | } |
882 | |
883 | if (!mrioc->sas_transport_enabled || (tgtdev->dev_type != |
884 | MPI3_DEVICE_DEVFORM_SAS_SATA) || tgtdev->non_stl) { |
885 | if (tgtdev->starget) { |
886 | if (mrioc->current_event) |
887 | mrioc->current_event->pending_at_sml = 1; |
888 | scsi_remove_target(&tgtdev->starget->dev); |
889 | tgtdev->host_exposed = 0; |
890 | if (mrioc->current_event) { |
891 | mrioc->current_event->pending_at_sml = 0; |
892 | if (mrioc->current_event->discard) { |
893 | mpi3mr_print_device_event_notice(mrioc, |
894 | device_add: false); |
895 | return; |
896 | } |
897 | } |
898 | } |
899 | } else |
900 | mpi3mr_remove_tgtdev_from_sas_transport(mrioc, tgtdev); |
901 | |
902 | ioc_info(mrioc, "%s :Removed handle(0x%04x), wwid(0x%016llx)\n" , |
903 | __func__, tgtdev->dev_handle, (unsigned long long)tgtdev->wwid); |
904 | } |
905 | |
906 | /** |
907 | * mpi3mr_report_tgtdev_to_host - Expose device to upper layers |
908 | * @mrioc: Adapter instance reference |
909 | * @perst_id: Persistent ID of the device |
910 | * |
911 | * Checks whether the device can be exposed to upper layers and |
912 | * if it is not then expose the device to upper layers by |
913 | * calling scsi_scan_target(). |
914 | * |
915 | * Return: 0 on success, non zero on failure. |
916 | */ |
917 | static int mpi3mr_report_tgtdev_to_host(struct mpi3mr_ioc *mrioc, |
918 | u16 perst_id) |
919 | { |
920 | int retval = 0; |
921 | struct mpi3mr_tgt_dev *tgtdev; |
922 | |
923 | if (mrioc->reset_in_progress) |
924 | return -1; |
925 | |
926 | tgtdev = mpi3mr_get_tgtdev_by_perst_id(mrioc, persist_id: perst_id); |
927 | if (!tgtdev) { |
928 | retval = -1; |
929 | goto out; |
930 | } |
931 | if (tgtdev->is_hidden || tgtdev->host_exposed) { |
932 | retval = -1; |
933 | goto out; |
934 | } |
935 | if (!mrioc->sas_transport_enabled || (tgtdev->dev_type != |
936 | MPI3_DEVICE_DEVFORM_SAS_SATA) || tgtdev->non_stl){ |
937 | tgtdev->host_exposed = 1; |
938 | if (mrioc->current_event) |
939 | mrioc->current_event->pending_at_sml = 1; |
940 | scsi_scan_target(parent: &mrioc->shost->shost_gendev, |
941 | channel: mrioc->scsi_device_channel, id: tgtdev->perst_id, |
942 | SCAN_WILD_CARD, rescan: SCSI_SCAN_INITIAL); |
943 | if (!tgtdev->starget) |
944 | tgtdev->host_exposed = 0; |
945 | if (mrioc->current_event) { |
946 | mrioc->current_event->pending_at_sml = 0; |
947 | if (mrioc->current_event->discard) { |
948 | mpi3mr_print_device_event_notice(mrioc, device_add: true); |
949 | goto out; |
950 | } |
951 | } |
952 | } else |
953 | mpi3mr_report_tgtdev_to_sas_transport(mrioc, tgtdev); |
954 | out: |
955 | if (tgtdev) |
956 | mpi3mr_tgtdev_put(s: tgtdev); |
957 | |
958 | return retval; |
959 | } |
960 | |
961 | /** |
962 | * mpi3mr_change_queue_depth- Change QD callback handler |
963 | * @sdev: SCSI device reference |
964 | * @q_depth: Queue depth |
965 | * |
966 | * Validate and limit QD and call scsi_change_queue_depth. |
967 | * |
968 | * Return: return value of scsi_change_queue_depth |
969 | */ |
970 | static int mpi3mr_change_queue_depth(struct scsi_device *sdev, |
971 | int q_depth) |
972 | { |
973 | struct scsi_target *starget = scsi_target(sdev); |
974 | struct Scsi_Host *shost = dev_to_shost(dev: &starget->dev); |
975 | int retval = 0; |
976 | |
977 | if (!sdev->tagged_supported) |
978 | q_depth = 1; |
979 | if (q_depth > shost->can_queue) |
980 | q_depth = shost->can_queue; |
981 | else if (!q_depth) |
982 | q_depth = MPI3MR_DEFAULT_SDEV_QD; |
983 | retval = scsi_change_queue_depth(sdev, q_depth); |
984 | sdev->max_queue_depth = sdev->queue_depth; |
985 | |
986 | return retval; |
987 | } |
988 | |
989 | /** |
990 | * mpi3mr_update_sdev - Update SCSI device information |
991 | * @sdev: SCSI device reference |
992 | * @data: target device reference |
993 | * |
994 | * This is an iterator function called for each SCSI device in a |
995 | * target to update the target specific information into each |
996 | * SCSI device. |
997 | * |
998 | * Return: Nothing. |
999 | */ |
1000 | static void |
1001 | mpi3mr_update_sdev(struct scsi_device *sdev, void *data) |
1002 | { |
1003 | struct mpi3mr_tgt_dev *tgtdev; |
1004 | |
1005 | tgtdev = (struct mpi3mr_tgt_dev *)data; |
1006 | if (!tgtdev) |
1007 | return; |
1008 | |
1009 | mpi3mr_change_queue_depth(sdev, q_depth: tgtdev->q_depth); |
1010 | switch (tgtdev->dev_type) { |
1011 | case MPI3_DEVICE_DEVFORM_PCIE: |
1012 | /*The block layer hw sector size = 512*/ |
1013 | if ((tgtdev->dev_spec.pcie_inf.dev_info & |
1014 | MPI3_DEVICE0_PCIE_DEVICE_INFO_TYPE_MASK) == |
1015 | MPI3_DEVICE0_PCIE_DEVICE_INFO_TYPE_NVME_DEVICE) { |
1016 | blk_queue_max_hw_sectors(sdev->request_queue, |
1017 | tgtdev->dev_spec.pcie_inf.mdts / 512); |
1018 | if (tgtdev->dev_spec.pcie_inf.pgsz == 0) |
1019 | blk_queue_virt_boundary(sdev->request_queue, |
1020 | ((1 << MPI3MR_DEFAULT_PGSZEXP) - 1)); |
1021 | else |
1022 | blk_queue_virt_boundary(sdev->request_queue, |
1023 | ((1 << tgtdev->dev_spec.pcie_inf.pgsz) - 1)); |
1024 | } |
1025 | break; |
1026 | default: |
1027 | break; |
1028 | } |
1029 | } |
1030 | |
1031 | /** |
1032 | * mpi3mr_rfresh_tgtdevs - Refresh target device exposure |
1033 | * @mrioc: Adapter instance reference |
1034 | * |
1035 | * This is executed post controller reset to identify any |
1036 | * missing devices during reset and remove from the upper layers |
1037 | * or expose any newly detected device to the upper layers. |
1038 | * |
1039 | * Return: Nothing. |
1040 | */ |
1041 | |
1042 | void mpi3mr_rfresh_tgtdevs(struct mpi3mr_ioc *mrioc) |
1043 | { |
1044 | struct mpi3mr_tgt_dev *tgtdev, *tgtdev_next; |
1045 | struct mpi3mr_stgt_priv_data *tgt_priv; |
1046 | |
1047 | dprint_reset(mrioc, "refresh target devices: check for removals\n" ); |
1048 | list_for_each_entry_safe(tgtdev, tgtdev_next, &mrioc->tgtdev_list, |
1049 | list) { |
1050 | if ((tgtdev->dev_handle == MPI3MR_INVALID_DEV_HANDLE) && |
1051 | tgtdev->is_hidden && |
1052 | tgtdev->host_exposed && tgtdev->starget && |
1053 | tgtdev->starget->hostdata) { |
1054 | tgt_priv = tgtdev->starget->hostdata; |
1055 | tgt_priv->dev_removed = 1; |
1056 | atomic_set(v: &tgt_priv->block_io, i: 0); |
1057 | } |
1058 | } |
1059 | |
1060 | list_for_each_entry_safe(tgtdev, tgtdev_next, &mrioc->tgtdev_list, |
1061 | list) { |
1062 | if (tgtdev->dev_handle == MPI3MR_INVALID_DEV_HANDLE) { |
1063 | dprint_reset(mrioc, "removing target device with perst_id(%d)\n" , |
1064 | tgtdev->perst_id); |
1065 | if (tgtdev->host_exposed) |
1066 | mpi3mr_remove_tgtdev_from_host(mrioc, tgtdev); |
1067 | mpi3mr_tgtdev_del_from_list(mrioc, tgtdev, must_delete: true); |
1068 | mpi3mr_tgtdev_put(s: tgtdev); |
1069 | } else if (tgtdev->is_hidden & tgtdev->host_exposed) { |
1070 | dprint_reset(mrioc, "hiding target device with perst_id(%d)\n" , |
1071 | tgtdev->perst_id); |
1072 | mpi3mr_remove_tgtdev_from_host(mrioc, tgtdev); |
1073 | } |
1074 | } |
1075 | |
1076 | tgtdev = NULL; |
1077 | list_for_each_entry(tgtdev, &mrioc->tgtdev_list, list) { |
1078 | if ((tgtdev->dev_handle != MPI3MR_INVALID_DEV_HANDLE) && |
1079 | !tgtdev->is_hidden) { |
1080 | if (!tgtdev->host_exposed) |
1081 | mpi3mr_report_tgtdev_to_host(mrioc, |
1082 | perst_id: tgtdev->perst_id); |
1083 | else if (tgtdev->starget) |
1084 | starget_for_each_device(tgtdev->starget, |
1085 | (void *)tgtdev, fn: mpi3mr_update_sdev); |
1086 | } |
1087 | } |
1088 | } |
1089 | |
1090 | /** |
1091 | * mpi3mr_update_tgtdev - DevStatusChange evt bottomhalf |
1092 | * @mrioc: Adapter instance reference |
1093 | * @tgtdev: Target device internal structure |
1094 | * @dev_pg0: New device page0 |
1095 | * @is_added: Flag to indicate the device is just added |
1096 | * |
1097 | * Update the information from the device page0 into the driver |
1098 | * cached target device structure. |
1099 | * |
1100 | * Return: Nothing. |
1101 | */ |
1102 | static void mpi3mr_update_tgtdev(struct mpi3mr_ioc *mrioc, |
1103 | struct mpi3mr_tgt_dev *tgtdev, struct mpi3_device_page0 *dev_pg0, |
1104 | bool is_added) |
1105 | { |
1106 | u16 flags = 0; |
1107 | struct mpi3mr_stgt_priv_data *scsi_tgt_priv_data = NULL; |
1108 | struct mpi3mr_enclosure_node *enclosure_dev = NULL; |
1109 | u8 prot_mask = 0; |
1110 | |
1111 | tgtdev->perst_id = le16_to_cpu(dev_pg0->persistent_id); |
1112 | tgtdev->dev_handle = le16_to_cpu(dev_pg0->dev_handle); |
1113 | tgtdev->dev_type = dev_pg0->device_form; |
1114 | tgtdev->io_unit_port = dev_pg0->io_unit_port; |
1115 | tgtdev->encl_handle = le16_to_cpu(dev_pg0->enclosure_handle); |
1116 | tgtdev->parent_handle = le16_to_cpu(dev_pg0->parent_dev_handle); |
1117 | tgtdev->slot = le16_to_cpu(dev_pg0->slot); |
1118 | tgtdev->q_depth = le16_to_cpu(dev_pg0->queue_depth); |
1119 | tgtdev->wwid = le64_to_cpu(dev_pg0->wwid); |
1120 | tgtdev->devpg0_flag = le16_to_cpu(dev_pg0->flags); |
1121 | |
1122 | if (tgtdev->encl_handle) |
1123 | enclosure_dev = mpi3mr_enclosure_find_by_handle(mrioc, |
1124 | handle: tgtdev->encl_handle); |
1125 | if (enclosure_dev) |
1126 | tgtdev->enclosure_logical_id = le64_to_cpu( |
1127 | enclosure_dev->pg0.enclosure_logical_id); |
1128 | |
1129 | flags = tgtdev->devpg0_flag; |
1130 | |
1131 | tgtdev->is_hidden = (flags & MPI3_DEVICE0_FLAGS_HIDDEN); |
1132 | |
1133 | if (is_added == true) |
1134 | tgtdev->io_throttle_enabled = |
1135 | (flags & MPI3_DEVICE0_FLAGS_IO_THROTTLING_REQUIRED) ? 1 : 0; |
1136 | |
1137 | switch (flags & MPI3_DEVICE0_FLAGS_MAX_WRITE_SAME_MASK) { |
1138 | case MPI3_DEVICE0_FLAGS_MAX_WRITE_SAME_256_LB: |
1139 | tgtdev->wslen = MPI3MR_WRITE_SAME_MAX_LEN_256_BLKS; |
1140 | break; |
1141 | case MPI3_DEVICE0_FLAGS_MAX_WRITE_SAME_2048_LB: |
1142 | tgtdev->wslen = MPI3MR_WRITE_SAME_MAX_LEN_2048_BLKS; |
1143 | break; |
1144 | case MPI3_DEVICE0_FLAGS_MAX_WRITE_SAME_NO_LIMIT: |
1145 | default: |
1146 | tgtdev->wslen = 0; |
1147 | break; |
1148 | } |
1149 | |
1150 | if (tgtdev->starget && tgtdev->starget->hostdata) { |
1151 | scsi_tgt_priv_data = (struct mpi3mr_stgt_priv_data *) |
1152 | tgtdev->starget->hostdata; |
1153 | scsi_tgt_priv_data->perst_id = tgtdev->perst_id; |
1154 | scsi_tgt_priv_data->dev_handle = tgtdev->dev_handle; |
1155 | scsi_tgt_priv_data->dev_type = tgtdev->dev_type; |
1156 | scsi_tgt_priv_data->io_throttle_enabled = |
1157 | tgtdev->io_throttle_enabled; |
1158 | if (is_added == true) |
1159 | atomic_set(v: &scsi_tgt_priv_data->block_io, i: 0); |
1160 | scsi_tgt_priv_data->wslen = tgtdev->wslen; |
1161 | } |
1162 | |
1163 | switch (dev_pg0->access_status) { |
1164 | case MPI3_DEVICE0_ASTATUS_NO_ERRORS: |
1165 | case MPI3_DEVICE0_ASTATUS_PREPARE: |
1166 | case MPI3_DEVICE0_ASTATUS_NEEDS_INITIALIZATION: |
1167 | case MPI3_DEVICE0_ASTATUS_DEVICE_MISSING_DELAY: |
1168 | break; |
1169 | default: |
1170 | tgtdev->is_hidden = 1; |
1171 | break; |
1172 | } |
1173 | |
1174 | switch (tgtdev->dev_type) { |
1175 | case MPI3_DEVICE_DEVFORM_SAS_SATA: |
1176 | { |
1177 | struct mpi3_device0_sas_sata_format *sasinf = |
1178 | &dev_pg0->device_specific.sas_sata_format; |
1179 | u16 dev_info = le16_to_cpu(sasinf->device_info); |
1180 | |
1181 | tgtdev->dev_spec.sas_sata_inf.dev_info = dev_info; |
1182 | tgtdev->dev_spec.sas_sata_inf.sas_address = |
1183 | le64_to_cpu(sasinf->sas_address); |
1184 | tgtdev->dev_spec.sas_sata_inf.phy_id = sasinf->phy_num; |
1185 | tgtdev->dev_spec.sas_sata_inf.attached_phy_id = |
1186 | sasinf->attached_phy_identifier; |
1187 | if ((dev_info & MPI3_SAS_DEVICE_INFO_DEVICE_TYPE_MASK) != |
1188 | MPI3_SAS_DEVICE_INFO_DEVICE_TYPE_END_DEVICE) |
1189 | tgtdev->is_hidden = 1; |
1190 | else if (!(dev_info & (MPI3_SAS_DEVICE_INFO_STP_SATA_TARGET | |
1191 | MPI3_SAS_DEVICE_INFO_SSP_TARGET))) |
1192 | tgtdev->is_hidden = 1; |
1193 | |
1194 | if (((tgtdev->devpg0_flag & |
1195 | MPI3_DEVICE0_FLAGS_ATT_METHOD_DIR_ATTACHED) |
1196 | && (tgtdev->devpg0_flag & |
1197 | MPI3_DEVICE0_FLAGS_ATT_METHOD_VIRTUAL)) || |
1198 | (tgtdev->parent_handle == 0xFFFF)) |
1199 | tgtdev->non_stl = 1; |
1200 | if (tgtdev->dev_spec.sas_sata_inf.hba_port) |
1201 | tgtdev->dev_spec.sas_sata_inf.hba_port->port_id = |
1202 | dev_pg0->io_unit_port; |
1203 | break; |
1204 | } |
1205 | case MPI3_DEVICE_DEVFORM_PCIE: |
1206 | { |
1207 | struct mpi3_device0_pcie_format *pcieinf = |
1208 | &dev_pg0->device_specific.pcie_format; |
1209 | u16 dev_info = le16_to_cpu(pcieinf->device_info); |
1210 | |
1211 | tgtdev->dev_spec.pcie_inf.dev_info = dev_info; |
1212 | tgtdev->dev_spec.pcie_inf.capb = |
1213 | le32_to_cpu(pcieinf->capabilities); |
1214 | tgtdev->dev_spec.pcie_inf.mdts = MPI3MR_DEFAULT_MDTS; |
1215 | /* 2^12 = 4096 */ |
1216 | tgtdev->dev_spec.pcie_inf.pgsz = 12; |
1217 | if (dev_pg0->access_status == MPI3_DEVICE0_ASTATUS_NO_ERRORS) { |
1218 | tgtdev->dev_spec.pcie_inf.mdts = |
1219 | le32_to_cpu(pcieinf->maximum_data_transfer_size); |
1220 | tgtdev->dev_spec.pcie_inf.pgsz = pcieinf->page_size; |
1221 | tgtdev->dev_spec.pcie_inf.reset_to = |
1222 | max_t(u8, pcieinf->controller_reset_to, |
1223 | MPI3MR_INTADMCMD_TIMEOUT); |
1224 | tgtdev->dev_spec.pcie_inf.abort_to = |
1225 | max_t(u8, pcieinf->nvme_abort_to, |
1226 | MPI3MR_INTADMCMD_TIMEOUT); |
1227 | } |
1228 | if (tgtdev->dev_spec.pcie_inf.mdts > (1024 * 1024)) |
1229 | tgtdev->dev_spec.pcie_inf.mdts = (1024 * 1024); |
1230 | if (((dev_info & MPI3_DEVICE0_PCIE_DEVICE_INFO_TYPE_MASK) != |
1231 | MPI3_DEVICE0_PCIE_DEVICE_INFO_TYPE_NVME_DEVICE) && |
1232 | ((dev_info & MPI3_DEVICE0_PCIE_DEVICE_INFO_TYPE_MASK) != |
1233 | MPI3_DEVICE0_PCIE_DEVICE_INFO_TYPE_SCSI_DEVICE)) |
1234 | tgtdev->is_hidden = 1; |
1235 | tgtdev->non_stl = 1; |
1236 | if (!mrioc->shost) |
1237 | break; |
1238 | prot_mask = scsi_host_get_prot(shost: mrioc->shost); |
1239 | if (prot_mask & SHOST_DIX_TYPE0_PROTECTION) { |
1240 | scsi_host_set_prot(shost: mrioc->shost, mask: prot_mask & 0x77); |
1241 | ioc_info(mrioc, |
1242 | "%s : Disabling DIX0 prot capability\n" , __func__); |
1243 | ioc_info(mrioc, |
1244 | "because HBA does not support DIX0 operation on NVME drives\n" ); |
1245 | } |
1246 | break; |
1247 | } |
1248 | case MPI3_DEVICE_DEVFORM_VD: |
1249 | { |
1250 | struct mpi3_device0_vd_format *vdinf = |
1251 | &dev_pg0->device_specific.vd_format; |
1252 | struct mpi3mr_throttle_group_info *tg = NULL; |
1253 | u16 vdinf_io_throttle_group = |
1254 | le16_to_cpu(vdinf->io_throttle_group); |
1255 | |
1256 | tgtdev->dev_spec.vd_inf.state = vdinf->vd_state; |
1257 | if (vdinf->vd_state == MPI3_DEVICE0_VD_STATE_OFFLINE) |
1258 | tgtdev->is_hidden = 1; |
1259 | tgtdev->non_stl = 1; |
1260 | tgtdev->dev_spec.vd_inf.tg_id = vdinf_io_throttle_group; |
1261 | tgtdev->dev_spec.vd_inf.tg_high = |
1262 | le16_to_cpu(vdinf->io_throttle_group_high) * 2048; |
1263 | tgtdev->dev_spec.vd_inf.tg_low = |
1264 | le16_to_cpu(vdinf->io_throttle_group_low) * 2048; |
1265 | if (vdinf_io_throttle_group < mrioc->num_io_throttle_group) { |
1266 | tg = mrioc->throttle_groups + vdinf_io_throttle_group; |
1267 | tg->id = vdinf_io_throttle_group; |
1268 | tg->high = tgtdev->dev_spec.vd_inf.tg_high; |
1269 | tg->low = tgtdev->dev_spec.vd_inf.tg_low; |
1270 | tg->qd_reduction = |
1271 | tgtdev->dev_spec.vd_inf.tg_qd_reduction; |
1272 | if (is_added == true) |
1273 | tg->fw_qd = tgtdev->q_depth; |
1274 | tg->modified_qd = tgtdev->q_depth; |
1275 | } |
1276 | tgtdev->dev_spec.vd_inf.tg = tg; |
1277 | if (scsi_tgt_priv_data) |
1278 | scsi_tgt_priv_data->throttle_group = tg; |
1279 | break; |
1280 | } |
1281 | default: |
1282 | break; |
1283 | } |
1284 | } |
1285 | |
1286 | /** |
1287 | * mpi3mr_devstatuschg_evt_bh - DevStatusChange evt bottomhalf |
1288 | * @mrioc: Adapter instance reference |
1289 | * @fwevt: Firmware event information. |
1290 | * |
1291 | * Process Device status Change event and based on device's new |
1292 | * information, either expose the device to the upper layers, or |
1293 | * remove the device from upper layers. |
1294 | * |
1295 | * Return: Nothing. |
1296 | */ |
1297 | static void mpi3mr_devstatuschg_evt_bh(struct mpi3mr_ioc *mrioc, |
1298 | struct mpi3mr_fwevt *fwevt) |
1299 | { |
1300 | u16 dev_handle = 0; |
1301 | u8 uhide = 0, delete = 0, cleanup = 0; |
1302 | struct mpi3mr_tgt_dev *tgtdev = NULL; |
1303 | struct mpi3_event_data_device_status_change *evtdata = |
1304 | (struct mpi3_event_data_device_status_change *)fwevt->event_data; |
1305 | |
1306 | dev_handle = le16_to_cpu(evtdata->dev_handle); |
1307 | ioc_info(mrioc, |
1308 | "%s :device status change: handle(0x%04x): reason code(0x%x)\n" , |
1309 | __func__, dev_handle, evtdata->reason_code); |
1310 | switch (evtdata->reason_code) { |
1311 | case MPI3_EVENT_DEV_STAT_RC_HIDDEN: |
1312 | delete = 1; |
1313 | break; |
1314 | case MPI3_EVENT_DEV_STAT_RC_NOT_HIDDEN: |
1315 | uhide = 1; |
1316 | break; |
1317 | case MPI3_EVENT_DEV_STAT_RC_VD_NOT_RESPONDING: |
1318 | delete = 1; |
1319 | cleanup = 1; |
1320 | break; |
1321 | default: |
1322 | ioc_info(mrioc, "%s :Unhandled reason code(0x%x)\n" , __func__, |
1323 | evtdata->reason_code); |
1324 | break; |
1325 | } |
1326 | |
1327 | tgtdev = mpi3mr_get_tgtdev_by_handle(mrioc, handle: dev_handle); |
1328 | if (!tgtdev) |
1329 | goto out; |
1330 | if (uhide) { |
1331 | tgtdev->is_hidden = 0; |
1332 | if (!tgtdev->host_exposed) |
1333 | mpi3mr_report_tgtdev_to_host(mrioc, perst_id: tgtdev->perst_id); |
1334 | } |
1335 | |
1336 | if (delete) |
1337 | mpi3mr_remove_tgtdev_from_host(mrioc, tgtdev); |
1338 | |
1339 | if (cleanup) { |
1340 | mpi3mr_tgtdev_del_from_list(mrioc, tgtdev, must_delete: false); |
1341 | mpi3mr_tgtdev_put(s: tgtdev); |
1342 | } |
1343 | |
1344 | out: |
1345 | if (tgtdev) |
1346 | mpi3mr_tgtdev_put(s: tgtdev); |
1347 | } |
1348 | |
1349 | /** |
1350 | * mpi3mr_devinfochg_evt_bh - DeviceInfoChange evt bottomhalf |
1351 | * @mrioc: Adapter instance reference |
1352 | * @dev_pg0: New device page0 |
1353 | * |
1354 | * Process Device Info Change event and based on device's new |
1355 | * information, either expose the device to the upper layers, or |
1356 | * remove the device from upper layers or update the details of |
1357 | * the device. |
1358 | * |
1359 | * Return: Nothing. |
1360 | */ |
1361 | static void mpi3mr_devinfochg_evt_bh(struct mpi3mr_ioc *mrioc, |
1362 | struct mpi3_device_page0 *dev_pg0) |
1363 | { |
1364 | struct mpi3mr_tgt_dev *tgtdev = NULL; |
1365 | u16 dev_handle = 0, perst_id = 0; |
1366 | |
1367 | perst_id = le16_to_cpu(dev_pg0->persistent_id); |
1368 | dev_handle = le16_to_cpu(dev_pg0->dev_handle); |
1369 | ioc_info(mrioc, |
1370 | "%s :Device info change: handle(0x%04x): persist_id(0x%x)\n" , |
1371 | __func__, dev_handle, perst_id); |
1372 | tgtdev = mpi3mr_get_tgtdev_by_handle(mrioc, handle: dev_handle); |
1373 | if (!tgtdev) |
1374 | goto out; |
1375 | mpi3mr_update_tgtdev(mrioc, tgtdev, dev_pg0, is_added: false); |
1376 | if (!tgtdev->is_hidden && !tgtdev->host_exposed) |
1377 | mpi3mr_report_tgtdev_to_host(mrioc, perst_id); |
1378 | if (tgtdev->is_hidden && tgtdev->host_exposed) |
1379 | mpi3mr_remove_tgtdev_from_host(mrioc, tgtdev); |
1380 | if (!tgtdev->is_hidden && tgtdev->host_exposed && tgtdev->starget) |
1381 | starget_for_each_device(tgtdev->starget, (void *)tgtdev, |
1382 | fn: mpi3mr_update_sdev); |
1383 | out: |
1384 | if (tgtdev) |
1385 | mpi3mr_tgtdev_put(s: tgtdev); |
1386 | } |
1387 | |
1388 | /** |
1389 | * mpi3mr_free_enclosure_list - release enclosures |
1390 | * @mrioc: Adapter instance reference |
1391 | * |
1392 | * Free memory allocated during encloure add. |
1393 | * |
1394 | * Return nothing. |
1395 | */ |
1396 | void mpi3mr_free_enclosure_list(struct mpi3mr_ioc *mrioc) |
1397 | { |
1398 | struct mpi3mr_enclosure_node *enclosure_dev, *enclosure_dev_next; |
1399 | |
1400 | list_for_each_entry_safe(enclosure_dev, |
1401 | enclosure_dev_next, &mrioc->enclosure_list, list) { |
1402 | list_del(entry: &enclosure_dev->list); |
1403 | kfree(objp: enclosure_dev); |
1404 | } |
1405 | } |
1406 | |
1407 | /** |
1408 | * mpi3mr_enclosure_find_by_handle - enclosure search by handle |
1409 | * @mrioc: Adapter instance reference |
1410 | * @handle: Firmware device handle of the enclosure |
1411 | * |
1412 | * This searches for enclosure device based on handle, then returns the |
1413 | * enclosure object. |
1414 | * |
1415 | * Return: Enclosure object reference or NULL |
1416 | */ |
1417 | struct mpi3mr_enclosure_node *mpi3mr_enclosure_find_by_handle( |
1418 | struct mpi3mr_ioc *mrioc, u16 handle) |
1419 | { |
1420 | struct mpi3mr_enclosure_node *enclosure_dev, *r = NULL; |
1421 | |
1422 | list_for_each_entry(enclosure_dev, &mrioc->enclosure_list, list) { |
1423 | if (le16_to_cpu(enclosure_dev->pg0.enclosure_handle) != handle) |
1424 | continue; |
1425 | r = enclosure_dev; |
1426 | goto out; |
1427 | } |
1428 | out: |
1429 | return r; |
1430 | } |
1431 | |
1432 | /** |
1433 | * mpi3mr_encldev_add_chg_evt_debug - debug for enclosure event |
1434 | * @mrioc: Adapter instance reference |
1435 | * @encl_pg0: Enclosure page 0. |
1436 | * @is_added: Added event or not |
1437 | * |
1438 | * Return nothing. |
1439 | */ |
1440 | static void mpi3mr_encldev_add_chg_evt_debug(struct mpi3mr_ioc *mrioc, |
1441 | struct mpi3_enclosure_page0 *encl_pg0, u8 is_added) |
1442 | { |
1443 | char *reason_str = NULL; |
1444 | |
1445 | if (!(mrioc->logging_level & MPI3_DEBUG_EVENT_WORK_TASK)) |
1446 | return; |
1447 | |
1448 | if (is_added) |
1449 | reason_str = "enclosure added" ; |
1450 | else |
1451 | reason_str = "enclosure dev status changed" ; |
1452 | |
1453 | ioc_info(mrioc, |
1454 | "%s: handle(0x%04x), enclosure logical id(0x%016llx)\n" , |
1455 | reason_str, le16_to_cpu(encl_pg0->enclosure_handle), |
1456 | (unsigned long long)le64_to_cpu(encl_pg0->enclosure_logical_id)); |
1457 | ioc_info(mrioc, |
1458 | "number of slots(%d), port(%d), flags(0x%04x), present(%d)\n" , |
1459 | le16_to_cpu(encl_pg0->num_slots), encl_pg0->io_unit_port, |
1460 | le16_to_cpu(encl_pg0->flags), |
1461 | ((le16_to_cpu(encl_pg0->flags) & |
1462 | MPI3_ENCLS0_FLAGS_ENCL_DEV_PRESENT_MASK) >> 4)); |
1463 | } |
1464 | |
1465 | /** |
1466 | * mpi3mr_encldev_add_chg_evt_bh - Enclosure evt bottomhalf |
1467 | * @mrioc: Adapter instance reference |
1468 | * @fwevt: Firmware event reference |
1469 | * |
1470 | * Prints information about the Enclosure device status or |
1471 | * Enclosure add events if logging is enabled and add or remove |
1472 | * the enclosure from the controller's internal list of |
1473 | * enclosures. |
1474 | * |
1475 | * Return: Nothing. |
1476 | */ |
1477 | static void mpi3mr_encldev_add_chg_evt_bh(struct mpi3mr_ioc *mrioc, |
1478 | struct mpi3mr_fwevt *fwevt) |
1479 | { |
1480 | struct mpi3mr_enclosure_node *enclosure_dev = NULL; |
1481 | struct mpi3_enclosure_page0 *encl_pg0; |
1482 | u16 encl_handle; |
1483 | u8 added, present; |
1484 | |
1485 | encl_pg0 = (struct mpi3_enclosure_page0 *) fwevt->event_data; |
1486 | added = (fwevt->event_id == MPI3_EVENT_ENCL_DEVICE_ADDED) ? 1 : 0; |
1487 | mpi3mr_encldev_add_chg_evt_debug(mrioc, encl_pg0, is_added: added); |
1488 | |
1489 | |
1490 | encl_handle = le16_to_cpu(encl_pg0->enclosure_handle); |
1491 | present = ((le16_to_cpu(encl_pg0->flags) & |
1492 | MPI3_ENCLS0_FLAGS_ENCL_DEV_PRESENT_MASK) >> 4); |
1493 | |
1494 | if (encl_handle) |
1495 | enclosure_dev = mpi3mr_enclosure_find_by_handle(mrioc, |
1496 | handle: encl_handle); |
1497 | if (!enclosure_dev && present) { |
1498 | enclosure_dev = |
1499 | kzalloc(size: sizeof(struct mpi3mr_enclosure_node), |
1500 | GFP_KERNEL); |
1501 | if (!enclosure_dev) |
1502 | return; |
1503 | list_add_tail(new: &enclosure_dev->list, |
1504 | head: &mrioc->enclosure_list); |
1505 | } |
1506 | if (enclosure_dev) { |
1507 | if (!present) { |
1508 | list_del(entry: &enclosure_dev->list); |
1509 | kfree(objp: enclosure_dev); |
1510 | } else |
1511 | memcpy(&enclosure_dev->pg0, encl_pg0, |
1512 | sizeof(enclosure_dev->pg0)); |
1513 | |
1514 | } |
1515 | } |
1516 | |
1517 | /** |
1518 | * mpi3mr_sastopochg_evt_debug - SASTopoChange details |
1519 | * @mrioc: Adapter instance reference |
1520 | * @event_data: SAS topology change list event data |
1521 | * |
1522 | * Prints information about the SAS topology change event. |
1523 | * |
1524 | * Return: Nothing. |
1525 | */ |
1526 | static void |
1527 | mpi3mr_sastopochg_evt_debug(struct mpi3mr_ioc *mrioc, |
1528 | struct mpi3_event_data_sas_topology_change_list *event_data) |
1529 | { |
1530 | int i; |
1531 | u16 handle; |
1532 | u8 reason_code, phy_number; |
1533 | char *status_str = NULL; |
1534 | u8 link_rate, prev_link_rate; |
1535 | |
1536 | switch (event_data->exp_status) { |
1537 | case MPI3_EVENT_SAS_TOPO_ES_NOT_RESPONDING: |
1538 | status_str = "remove" ; |
1539 | break; |
1540 | case MPI3_EVENT_SAS_TOPO_ES_RESPONDING: |
1541 | status_str = "responding" ; |
1542 | break; |
1543 | case MPI3_EVENT_SAS_TOPO_ES_DELAY_NOT_RESPONDING: |
1544 | status_str = "remove delay" ; |
1545 | break; |
1546 | case MPI3_EVENT_SAS_TOPO_ES_NO_EXPANDER: |
1547 | status_str = "direct attached" ; |
1548 | break; |
1549 | default: |
1550 | status_str = "unknown status" ; |
1551 | break; |
1552 | } |
1553 | ioc_info(mrioc, "%s :sas topology change: (%s)\n" , |
1554 | __func__, status_str); |
1555 | ioc_info(mrioc, |
1556 | "%s :\texpander_handle(0x%04x), port(%d), enclosure_handle(0x%04x) start_phy(%02d), num_entries(%d)\n" , |
1557 | __func__, le16_to_cpu(event_data->expander_dev_handle), |
1558 | event_data->io_unit_port, |
1559 | le16_to_cpu(event_data->enclosure_handle), |
1560 | event_data->start_phy_num, event_data->num_entries); |
1561 | for (i = 0; i < event_data->num_entries; i++) { |
1562 | handle = le16_to_cpu(event_data->phy_entry[i].attached_dev_handle); |
1563 | if (!handle) |
1564 | continue; |
1565 | phy_number = event_data->start_phy_num + i; |
1566 | reason_code = event_data->phy_entry[i].status & |
1567 | MPI3_EVENT_SAS_TOPO_PHY_RC_MASK; |
1568 | switch (reason_code) { |
1569 | case MPI3_EVENT_SAS_TOPO_PHY_RC_TARG_NOT_RESPONDING: |
1570 | status_str = "target remove" ; |
1571 | break; |
1572 | case MPI3_EVENT_SAS_TOPO_PHY_RC_DELAY_NOT_RESPONDING: |
1573 | status_str = "delay target remove" ; |
1574 | break; |
1575 | case MPI3_EVENT_SAS_TOPO_PHY_RC_PHY_CHANGED: |
1576 | status_str = "link status change" ; |
1577 | break; |
1578 | case MPI3_EVENT_SAS_TOPO_PHY_RC_NO_CHANGE: |
1579 | status_str = "link status no change" ; |
1580 | break; |
1581 | case MPI3_EVENT_SAS_TOPO_PHY_RC_RESPONDING: |
1582 | status_str = "target responding" ; |
1583 | break; |
1584 | default: |
1585 | status_str = "unknown" ; |
1586 | break; |
1587 | } |
1588 | link_rate = event_data->phy_entry[i].link_rate >> 4; |
1589 | prev_link_rate = event_data->phy_entry[i].link_rate & 0xF; |
1590 | ioc_info(mrioc, |
1591 | "%s :\tphy(%02d), attached_handle(0x%04x): %s: link rate: new(0x%02x), old(0x%02x)\n" , |
1592 | __func__, phy_number, handle, status_str, link_rate, |
1593 | prev_link_rate); |
1594 | } |
1595 | } |
1596 | |
1597 | /** |
1598 | * mpi3mr_sastopochg_evt_bh - SASTopologyChange evt bottomhalf |
1599 | * @mrioc: Adapter instance reference |
1600 | * @fwevt: Firmware event reference |
1601 | * |
1602 | * Prints information about the SAS topology change event and |
1603 | * for "not responding" event code, removes the device from the |
1604 | * upper layers. |
1605 | * |
1606 | * Return: Nothing. |
1607 | */ |
1608 | static void mpi3mr_sastopochg_evt_bh(struct mpi3mr_ioc *mrioc, |
1609 | struct mpi3mr_fwevt *fwevt) |
1610 | { |
1611 | struct mpi3_event_data_sas_topology_change_list *event_data = |
1612 | (struct mpi3_event_data_sas_topology_change_list *)fwevt->event_data; |
1613 | int i; |
1614 | u16 handle; |
1615 | u8 reason_code; |
1616 | u64 exp_sas_address = 0, parent_sas_address = 0; |
1617 | struct mpi3mr_hba_port *hba_port = NULL; |
1618 | struct mpi3mr_tgt_dev *tgtdev = NULL; |
1619 | struct mpi3mr_sas_node *sas_expander = NULL; |
1620 | unsigned long flags; |
1621 | u8 link_rate, prev_link_rate, parent_phy_number; |
1622 | |
1623 | mpi3mr_sastopochg_evt_debug(mrioc, event_data); |
1624 | if (mrioc->sas_transport_enabled) { |
1625 | hba_port = mpi3mr_get_hba_port_by_id(mrioc, |
1626 | port_id: event_data->io_unit_port); |
1627 | if (le16_to_cpu(event_data->expander_dev_handle)) { |
1628 | spin_lock_irqsave(&mrioc->sas_node_lock, flags); |
1629 | sas_expander = __mpi3mr_expander_find_by_handle(mrioc, |
1630 | le16_to_cpu(event_data->expander_dev_handle)); |
1631 | if (sas_expander) { |
1632 | exp_sas_address = sas_expander->sas_address; |
1633 | hba_port = sas_expander->hba_port; |
1634 | } |
1635 | spin_unlock_irqrestore(lock: &mrioc->sas_node_lock, flags); |
1636 | parent_sas_address = exp_sas_address; |
1637 | } else |
1638 | parent_sas_address = mrioc->sas_hba.sas_address; |
1639 | } |
1640 | |
1641 | for (i = 0; i < event_data->num_entries; i++) { |
1642 | if (fwevt->discard) |
1643 | return; |
1644 | handle = le16_to_cpu(event_data->phy_entry[i].attached_dev_handle); |
1645 | if (!handle) |
1646 | continue; |
1647 | tgtdev = mpi3mr_get_tgtdev_by_handle(mrioc, handle); |
1648 | if (!tgtdev) |
1649 | continue; |
1650 | |
1651 | reason_code = event_data->phy_entry[i].status & |
1652 | MPI3_EVENT_SAS_TOPO_PHY_RC_MASK; |
1653 | |
1654 | switch (reason_code) { |
1655 | case MPI3_EVENT_SAS_TOPO_PHY_RC_TARG_NOT_RESPONDING: |
1656 | if (tgtdev->host_exposed) |
1657 | mpi3mr_remove_tgtdev_from_host(mrioc, tgtdev); |
1658 | mpi3mr_tgtdev_del_from_list(mrioc, tgtdev, must_delete: false); |
1659 | mpi3mr_tgtdev_put(s: tgtdev); |
1660 | break; |
1661 | case MPI3_EVENT_SAS_TOPO_PHY_RC_RESPONDING: |
1662 | case MPI3_EVENT_SAS_TOPO_PHY_RC_PHY_CHANGED: |
1663 | case MPI3_EVENT_SAS_TOPO_PHY_RC_NO_CHANGE: |
1664 | { |
1665 | if (!mrioc->sas_transport_enabled || tgtdev->non_stl |
1666 | || tgtdev->is_hidden) |
1667 | break; |
1668 | link_rate = event_data->phy_entry[i].link_rate >> 4; |
1669 | prev_link_rate = event_data->phy_entry[i].link_rate & 0xF; |
1670 | if (link_rate == prev_link_rate) |
1671 | break; |
1672 | if (!parent_sas_address) |
1673 | break; |
1674 | parent_phy_number = event_data->start_phy_num + i; |
1675 | mpi3mr_update_links(mrioc, sas_address_parent: parent_sas_address, handle, |
1676 | phy_number: parent_phy_number, link_rate, hba_port); |
1677 | break; |
1678 | } |
1679 | default: |
1680 | break; |
1681 | } |
1682 | if (tgtdev) |
1683 | mpi3mr_tgtdev_put(s: tgtdev); |
1684 | } |
1685 | |
1686 | if (mrioc->sas_transport_enabled && (event_data->exp_status == |
1687 | MPI3_EVENT_SAS_TOPO_ES_NOT_RESPONDING)) { |
1688 | if (sas_expander) |
1689 | mpi3mr_expander_remove(mrioc, sas_address: exp_sas_address, |
1690 | hba_port); |
1691 | } |
1692 | } |
1693 | |
1694 | /** |
1695 | * mpi3mr_pcietopochg_evt_debug - PCIeTopoChange details |
1696 | * @mrioc: Adapter instance reference |
1697 | * @event_data: PCIe topology change list event data |
1698 | * |
1699 | * Prints information about the PCIe topology change event. |
1700 | * |
1701 | * Return: Nothing. |
1702 | */ |
1703 | static void |
1704 | mpi3mr_pcietopochg_evt_debug(struct mpi3mr_ioc *mrioc, |
1705 | struct mpi3_event_data_pcie_topology_change_list *event_data) |
1706 | { |
1707 | int i; |
1708 | u16 handle; |
1709 | u16 reason_code; |
1710 | u8 port_number; |
1711 | char *status_str = NULL; |
1712 | u8 link_rate, prev_link_rate; |
1713 | |
1714 | switch (event_data->switch_status) { |
1715 | case MPI3_EVENT_PCIE_TOPO_SS_NOT_RESPONDING: |
1716 | status_str = "remove" ; |
1717 | break; |
1718 | case MPI3_EVENT_PCIE_TOPO_SS_RESPONDING: |
1719 | status_str = "responding" ; |
1720 | break; |
1721 | case MPI3_EVENT_PCIE_TOPO_SS_DELAY_NOT_RESPONDING: |
1722 | status_str = "remove delay" ; |
1723 | break; |
1724 | case MPI3_EVENT_PCIE_TOPO_SS_NO_PCIE_SWITCH: |
1725 | status_str = "direct attached" ; |
1726 | break; |
1727 | default: |
1728 | status_str = "unknown status" ; |
1729 | break; |
1730 | } |
1731 | ioc_info(mrioc, "%s :pcie topology change: (%s)\n" , |
1732 | __func__, status_str); |
1733 | ioc_info(mrioc, |
1734 | "%s :\tswitch_handle(0x%04x), enclosure_handle(0x%04x) start_port(%02d), num_entries(%d)\n" , |
1735 | __func__, le16_to_cpu(event_data->switch_dev_handle), |
1736 | le16_to_cpu(event_data->enclosure_handle), |
1737 | event_data->start_port_num, event_data->num_entries); |
1738 | for (i = 0; i < event_data->num_entries; i++) { |
1739 | handle = |
1740 | le16_to_cpu(event_data->port_entry[i].attached_dev_handle); |
1741 | if (!handle) |
1742 | continue; |
1743 | port_number = event_data->start_port_num + i; |
1744 | reason_code = event_data->port_entry[i].port_status; |
1745 | switch (reason_code) { |
1746 | case MPI3_EVENT_PCIE_TOPO_PS_NOT_RESPONDING: |
1747 | status_str = "target remove" ; |
1748 | break; |
1749 | case MPI3_EVENT_PCIE_TOPO_PS_DELAY_NOT_RESPONDING: |
1750 | status_str = "delay target remove" ; |
1751 | break; |
1752 | case MPI3_EVENT_PCIE_TOPO_PS_PORT_CHANGED: |
1753 | status_str = "link status change" ; |
1754 | break; |
1755 | case MPI3_EVENT_PCIE_TOPO_PS_NO_CHANGE: |
1756 | status_str = "link status no change" ; |
1757 | break; |
1758 | case MPI3_EVENT_PCIE_TOPO_PS_RESPONDING: |
1759 | status_str = "target responding" ; |
1760 | break; |
1761 | default: |
1762 | status_str = "unknown" ; |
1763 | break; |
1764 | } |
1765 | link_rate = event_data->port_entry[i].current_port_info & |
1766 | MPI3_EVENT_PCIE_TOPO_PI_RATE_MASK; |
1767 | prev_link_rate = event_data->port_entry[i].previous_port_info & |
1768 | MPI3_EVENT_PCIE_TOPO_PI_RATE_MASK; |
1769 | ioc_info(mrioc, |
1770 | "%s :\tport(%02d), attached_handle(0x%04x): %s: link rate: new(0x%02x), old(0x%02x)\n" , |
1771 | __func__, port_number, handle, status_str, link_rate, |
1772 | prev_link_rate); |
1773 | } |
1774 | } |
1775 | |
1776 | /** |
1777 | * mpi3mr_pcietopochg_evt_bh - PCIeTopologyChange evt bottomhalf |
1778 | * @mrioc: Adapter instance reference |
1779 | * @fwevt: Firmware event reference |
1780 | * |
1781 | * Prints information about the PCIe topology change event and |
1782 | * for "not responding" event code, removes the device from the |
1783 | * upper layers. |
1784 | * |
1785 | * Return: Nothing. |
1786 | */ |
1787 | static void mpi3mr_pcietopochg_evt_bh(struct mpi3mr_ioc *mrioc, |
1788 | struct mpi3mr_fwevt *fwevt) |
1789 | { |
1790 | struct mpi3_event_data_pcie_topology_change_list *event_data = |
1791 | (struct mpi3_event_data_pcie_topology_change_list *)fwevt->event_data; |
1792 | int i; |
1793 | u16 handle; |
1794 | u8 reason_code; |
1795 | struct mpi3mr_tgt_dev *tgtdev = NULL; |
1796 | |
1797 | mpi3mr_pcietopochg_evt_debug(mrioc, event_data); |
1798 | |
1799 | for (i = 0; i < event_data->num_entries; i++) { |
1800 | if (fwevt->discard) |
1801 | return; |
1802 | handle = |
1803 | le16_to_cpu(event_data->port_entry[i].attached_dev_handle); |
1804 | if (!handle) |
1805 | continue; |
1806 | tgtdev = mpi3mr_get_tgtdev_by_handle(mrioc, handle); |
1807 | if (!tgtdev) |
1808 | continue; |
1809 | |
1810 | reason_code = event_data->port_entry[i].port_status; |
1811 | |
1812 | switch (reason_code) { |
1813 | case MPI3_EVENT_PCIE_TOPO_PS_NOT_RESPONDING: |
1814 | if (tgtdev->host_exposed) |
1815 | mpi3mr_remove_tgtdev_from_host(mrioc, tgtdev); |
1816 | mpi3mr_tgtdev_del_from_list(mrioc, tgtdev, must_delete: false); |
1817 | mpi3mr_tgtdev_put(s: tgtdev); |
1818 | break; |
1819 | default: |
1820 | break; |
1821 | } |
1822 | if (tgtdev) |
1823 | mpi3mr_tgtdev_put(s: tgtdev); |
1824 | } |
1825 | } |
1826 | |
1827 | /** |
1828 | * mpi3mr_logdata_evt_bh - Log data event bottomhalf |
1829 | * @mrioc: Adapter instance reference |
1830 | * @fwevt: Firmware event reference |
1831 | * |
1832 | * Extracts the event data and calls application interfacing |
1833 | * function to process the event further. |
1834 | * |
1835 | * Return: Nothing. |
1836 | */ |
1837 | static void mpi3mr_logdata_evt_bh(struct mpi3mr_ioc *mrioc, |
1838 | struct mpi3mr_fwevt *fwevt) |
1839 | { |
1840 | mpi3mr_app_save_logdata(mrioc, event_data: fwevt->event_data, |
1841 | event_data_size: fwevt->event_data_size); |
1842 | } |
1843 | |
1844 | /** |
1845 | * mpi3mr_update_sdev_qd - Update SCSI device queue depath |
1846 | * @sdev: SCSI device reference |
1847 | * @data: Queue depth reference |
1848 | * |
1849 | * This is an iterator function called for each SCSI device in a |
1850 | * target to update the QD of each SCSI device. |
1851 | * |
1852 | * Return: Nothing. |
1853 | */ |
1854 | static void mpi3mr_update_sdev_qd(struct scsi_device *sdev, void *data) |
1855 | { |
1856 | u16 *q_depth = (u16 *)data; |
1857 | |
1858 | scsi_change_queue_depth(sdev, (int)*q_depth); |
1859 | sdev->max_queue_depth = sdev->queue_depth; |
1860 | } |
1861 | |
1862 | /** |
1863 | * mpi3mr_set_qd_for_all_vd_in_tg -set QD for TG VDs |
1864 | * @mrioc: Adapter instance reference |
1865 | * @tg: Throttle group information pointer |
1866 | * |
1867 | * Accessor to reduce QD for each device associated with the |
1868 | * given throttle group. |
1869 | * |
1870 | * Return: None. |
1871 | */ |
1872 | static void mpi3mr_set_qd_for_all_vd_in_tg(struct mpi3mr_ioc *mrioc, |
1873 | struct mpi3mr_throttle_group_info *tg) |
1874 | { |
1875 | unsigned long flags; |
1876 | struct mpi3mr_tgt_dev *tgtdev; |
1877 | struct mpi3mr_stgt_priv_data *tgt_priv; |
1878 | |
1879 | |
1880 | spin_lock_irqsave(&mrioc->tgtdev_lock, flags); |
1881 | list_for_each_entry(tgtdev, &mrioc->tgtdev_list, list) { |
1882 | if (tgtdev->starget && tgtdev->starget->hostdata) { |
1883 | tgt_priv = tgtdev->starget->hostdata; |
1884 | if (tgt_priv->throttle_group == tg) { |
1885 | dprint_event_bh(mrioc, |
1886 | "updating qd due to throttling for persist_id(%d) original_qd(%d), reduced_qd (%d)\n" , |
1887 | tgt_priv->perst_id, tgtdev->q_depth, |
1888 | tg->modified_qd); |
1889 | starget_for_each_device(tgtdev->starget, |
1890 | (void *)&tg->modified_qd, |
1891 | fn: mpi3mr_update_sdev_qd); |
1892 | } |
1893 | } |
1894 | } |
1895 | spin_unlock_irqrestore(lock: &mrioc->tgtdev_lock, flags); |
1896 | } |
1897 | |
1898 | /** |
1899 | * mpi3mr_fwevt_bh - Firmware event bottomhalf handler |
1900 | * @mrioc: Adapter instance reference |
1901 | * @fwevt: Firmware event reference |
1902 | * |
1903 | * Identifies the firmware event and calls corresponding bottomg |
1904 | * half handler and sends event acknowledgment if required. |
1905 | * |
1906 | * Return: Nothing. |
1907 | */ |
1908 | static void mpi3mr_fwevt_bh(struct mpi3mr_ioc *mrioc, |
1909 | struct mpi3mr_fwevt *fwevt) |
1910 | { |
1911 | struct mpi3_device_page0 *dev_pg0 = NULL; |
1912 | u16 perst_id, handle, dev_info; |
1913 | struct mpi3_device0_sas_sata_format *sasinf = NULL; |
1914 | |
1915 | mpi3mr_fwevt_del_from_list(mrioc, fwevt); |
1916 | mrioc->current_event = fwevt; |
1917 | |
1918 | if (mrioc->stop_drv_processing) |
1919 | goto out; |
1920 | |
1921 | if (mrioc->unrecoverable) { |
1922 | dprint_event_bh(mrioc, |
1923 | "ignoring event(0x%02x) in bottom half handler due to unrecoverable controller\n" , |
1924 | fwevt->event_id); |
1925 | goto out; |
1926 | } |
1927 | |
1928 | if (!fwevt->process_evt) |
1929 | goto evt_ack; |
1930 | |
1931 | switch (fwevt->event_id) { |
1932 | case MPI3_EVENT_DEVICE_ADDED: |
1933 | { |
1934 | dev_pg0 = (struct mpi3_device_page0 *)fwevt->event_data; |
1935 | perst_id = le16_to_cpu(dev_pg0->persistent_id); |
1936 | handle = le16_to_cpu(dev_pg0->dev_handle); |
1937 | if (perst_id != MPI3_DEVICE0_PERSISTENTID_INVALID) |
1938 | mpi3mr_report_tgtdev_to_host(mrioc, perst_id); |
1939 | else if (mrioc->sas_transport_enabled && |
1940 | (dev_pg0->device_form == MPI3_DEVICE_DEVFORM_SAS_SATA)) { |
1941 | sasinf = &dev_pg0->device_specific.sas_sata_format; |
1942 | dev_info = le16_to_cpu(sasinf->device_info); |
1943 | if (!mrioc->sas_hba.num_phys) |
1944 | mpi3mr_sas_host_add(mrioc); |
1945 | else |
1946 | mpi3mr_sas_host_refresh(mrioc); |
1947 | |
1948 | if (mpi3mr_is_expander_device(device_info: dev_info)) |
1949 | mpi3mr_expander_add(mrioc, handle); |
1950 | } |
1951 | break; |
1952 | } |
1953 | case MPI3_EVENT_DEVICE_INFO_CHANGED: |
1954 | { |
1955 | dev_pg0 = (struct mpi3_device_page0 *)fwevt->event_data; |
1956 | perst_id = le16_to_cpu(dev_pg0->persistent_id); |
1957 | if (perst_id != MPI3_DEVICE0_PERSISTENTID_INVALID) |
1958 | mpi3mr_devinfochg_evt_bh(mrioc, dev_pg0); |
1959 | break; |
1960 | } |
1961 | case MPI3_EVENT_DEVICE_STATUS_CHANGE: |
1962 | { |
1963 | mpi3mr_devstatuschg_evt_bh(mrioc, fwevt); |
1964 | break; |
1965 | } |
1966 | case MPI3_EVENT_ENCL_DEVICE_ADDED: |
1967 | case MPI3_EVENT_ENCL_DEVICE_STATUS_CHANGE: |
1968 | { |
1969 | mpi3mr_encldev_add_chg_evt_bh(mrioc, fwevt); |
1970 | break; |
1971 | } |
1972 | |
1973 | case MPI3_EVENT_SAS_TOPOLOGY_CHANGE_LIST: |
1974 | { |
1975 | mpi3mr_sastopochg_evt_bh(mrioc, fwevt); |
1976 | break; |
1977 | } |
1978 | case MPI3_EVENT_PCIE_TOPOLOGY_CHANGE_LIST: |
1979 | { |
1980 | mpi3mr_pcietopochg_evt_bh(mrioc, fwevt); |
1981 | break; |
1982 | } |
1983 | case MPI3_EVENT_LOG_DATA: |
1984 | { |
1985 | mpi3mr_logdata_evt_bh(mrioc, fwevt); |
1986 | break; |
1987 | } |
1988 | case MPI3MR_DRIVER_EVENT_TG_QD_REDUCTION: |
1989 | { |
1990 | struct mpi3mr_throttle_group_info *tg; |
1991 | |
1992 | tg = *(struct mpi3mr_throttle_group_info **)fwevt->event_data; |
1993 | dprint_event_bh(mrioc, |
1994 | "qd reduction event processed for tg_id(%d) reduction_needed(%d)\n" , |
1995 | tg->id, tg->need_qd_reduction); |
1996 | if (tg->need_qd_reduction) { |
1997 | mpi3mr_set_qd_for_all_vd_in_tg(mrioc, tg); |
1998 | tg->need_qd_reduction = 0; |
1999 | } |
2000 | break; |
2001 | } |
2002 | case MPI3_EVENT_WAIT_FOR_DEVICES_TO_REFRESH: |
2003 | { |
2004 | while (mrioc->device_refresh_on) |
2005 | msleep(msecs: 500); |
2006 | |
2007 | dprint_event_bh(mrioc, |
2008 | "scan for non responding and newly added devices after soft reset started\n" ); |
2009 | if (mrioc->sas_transport_enabled) { |
2010 | mpi3mr_refresh_sas_ports(mrioc); |
2011 | mpi3mr_refresh_expanders(mrioc); |
2012 | } |
2013 | mpi3mr_rfresh_tgtdevs(mrioc); |
2014 | ioc_info(mrioc, |
2015 | "scan for non responding and newly added devices after soft reset completed\n" ); |
2016 | break; |
2017 | } |
2018 | default: |
2019 | break; |
2020 | } |
2021 | |
2022 | evt_ack: |
2023 | if (fwevt->send_ack) |
2024 | mpi3mr_process_event_ack(mrioc, event: fwevt->event_id, |
2025 | event_ctx: fwevt->evt_ctx); |
2026 | out: |
2027 | /* Put fwevt reference count to neutralize kref_init increment */ |
2028 | mpi3mr_fwevt_put(fwevt); |
2029 | mrioc->current_event = NULL; |
2030 | } |
2031 | |
2032 | /** |
2033 | * mpi3mr_fwevt_worker - Firmware event worker |
2034 | * @work: Work struct containing firmware event |
2035 | * |
2036 | * Extracts the firmware event and calls mpi3mr_fwevt_bh. |
2037 | * |
2038 | * Return: Nothing. |
2039 | */ |
2040 | static void mpi3mr_fwevt_worker(struct work_struct *work) |
2041 | { |
2042 | struct mpi3mr_fwevt *fwevt = container_of(work, struct mpi3mr_fwevt, |
2043 | work); |
2044 | mpi3mr_fwevt_bh(mrioc: fwevt->mrioc, fwevt); |
2045 | /* |
2046 | * Put fwevt reference count after |
2047 | * dequeuing it from worker queue |
2048 | */ |
2049 | mpi3mr_fwevt_put(fwevt); |
2050 | } |
2051 | |
2052 | /** |
2053 | * mpi3mr_create_tgtdev - Create and add a target device |
2054 | * @mrioc: Adapter instance reference |
2055 | * @dev_pg0: Device Page 0 data |
2056 | * |
2057 | * If the device specified by the device page 0 data is not |
2058 | * present in the driver's internal list, allocate the memory |
2059 | * for the device, populate the data and add to the list, else |
2060 | * update the device data. The key is persistent ID. |
2061 | * |
2062 | * Return: 0 on success, -ENOMEM on memory allocation failure |
2063 | */ |
2064 | static int mpi3mr_create_tgtdev(struct mpi3mr_ioc *mrioc, |
2065 | struct mpi3_device_page0 *dev_pg0) |
2066 | { |
2067 | int retval = 0; |
2068 | struct mpi3mr_tgt_dev *tgtdev = NULL; |
2069 | u16 perst_id = 0; |
2070 | unsigned long flags; |
2071 | |
2072 | perst_id = le16_to_cpu(dev_pg0->persistent_id); |
2073 | if (perst_id == MPI3_DEVICE0_PERSISTENTID_INVALID) |
2074 | return retval; |
2075 | |
2076 | spin_lock_irqsave(&mrioc->tgtdev_lock, flags); |
2077 | tgtdev = __mpi3mr_get_tgtdev_by_perst_id(mrioc, persist_id: perst_id); |
2078 | if (tgtdev) |
2079 | tgtdev->state = MPI3MR_DEV_CREATED; |
2080 | spin_unlock_irqrestore(lock: &mrioc->tgtdev_lock, flags); |
2081 | |
2082 | if (tgtdev) { |
2083 | mpi3mr_update_tgtdev(mrioc, tgtdev, dev_pg0, is_added: true); |
2084 | mpi3mr_tgtdev_put(s: tgtdev); |
2085 | } else { |
2086 | tgtdev = mpi3mr_alloc_tgtdev(); |
2087 | if (!tgtdev) |
2088 | return -ENOMEM; |
2089 | mpi3mr_update_tgtdev(mrioc, tgtdev, dev_pg0, is_added: true); |
2090 | mpi3mr_tgtdev_add_to_list(mrioc, tgtdev); |
2091 | } |
2092 | |
2093 | return retval; |
2094 | } |
2095 | |
2096 | /** |
2097 | * mpi3mr_flush_delayed_cmd_lists - Flush pending commands |
2098 | * @mrioc: Adapter instance reference |
2099 | * |
2100 | * Flush pending commands in the delayed lists due to a |
2101 | * controller reset or driver removal as a cleanup. |
2102 | * |
2103 | * Return: Nothing |
2104 | */ |
2105 | void mpi3mr_flush_delayed_cmd_lists(struct mpi3mr_ioc *mrioc) |
2106 | { |
2107 | struct delayed_dev_rmhs_node *_rmhs_node; |
2108 | struct delayed_evt_ack_node *_evtack_node; |
2109 | |
2110 | dprint_reset(mrioc, "flushing delayed dev_remove_hs commands\n" ); |
2111 | while (!list_empty(head: &mrioc->delayed_rmhs_list)) { |
2112 | _rmhs_node = list_entry(mrioc->delayed_rmhs_list.next, |
2113 | struct delayed_dev_rmhs_node, list); |
2114 | list_del(entry: &_rmhs_node->list); |
2115 | kfree(objp: _rmhs_node); |
2116 | } |
2117 | dprint_reset(mrioc, "flushing delayed event ack commands\n" ); |
2118 | while (!list_empty(head: &mrioc->delayed_evtack_cmds_list)) { |
2119 | _evtack_node = list_entry(mrioc->delayed_evtack_cmds_list.next, |
2120 | struct delayed_evt_ack_node, list); |
2121 | list_del(entry: &_evtack_node->list); |
2122 | kfree(objp: _evtack_node); |
2123 | } |
2124 | } |
2125 | |
2126 | /** |
2127 | * mpi3mr_dev_rmhs_complete_iou - Device removal IOUC completion |
2128 | * @mrioc: Adapter instance reference |
2129 | * @drv_cmd: Internal command tracker |
2130 | * |
2131 | * Issues a target reset TM to the firmware from the device |
2132 | * removal TM pend list or retry the removal handshake sequence |
2133 | * based on the IOU control request IOC status. |
2134 | * |
2135 | * Return: Nothing |
2136 | */ |
2137 | static void mpi3mr_dev_rmhs_complete_iou(struct mpi3mr_ioc *mrioc, |
2138 | struct mpi3mr_drv_cmd *drv_cmd) |
2139 | { |
2140 | u16 cmd_idx = drv_cmd->host_tag - MPI3MR_HOSTTAG_DEVRMCMD_MIN; |
2141 | struct delayed_dev_rmhs_node *delayed_dev_rmhs = NULL; |
2142 | |
2143 | if (drv_cmd->state & MPI3MR_CMD_RESET) |
2144 | goto clear_drv_cmd; |
2145 | |
2146 | ioc_info(mrioc, |
2147 | "%s :dev_rmhs_iouctrl_complete:handle(0x%04x), ioc_status(0x%04x), loginfo(0x%08x)\n" , |
2148 | __func__, drv_cmd->dev_handle, drv_cmd->ioc_status, |
2149 | drv_cmd->ioc_loginfo); |
2150 | if (drv_cmd->ioc_status != MPI3_IOCSTATUS_SUCCESS) { |
2151 | if (drv_cmd->retry_count < MPI3MR_DEV_RMHS_RETRY_COUNT) { |
2152 | drv_cmd->retry_count++; |
2153 | ioc_info(mrioc, |
2154 | "%s :dev_rmhs_iouctrl_complete: handle(0x%04x)retrying handshake retry=%d\n" , |
2155 | __func__, drv_cmd->dev_handle, |
2156 | drv_cmd->retry_count); |
2157 | mpi3mr_dev_rmhs_send_tm(mrioc, handle: drv_cmd->dev_handle, |
2158 | cmdparam: drv_cmd, iou_rc: drv_cmd->iou_rc); |
2159 | return; |
2160 | } |
2161 | ioc_err(mrioc, |
2162 | "%s :dev removal handshake failed after all retries: handle(0x%04x)\n" , |
2163 | __func__, drv_cmd->dev_handle); |
2164 | } else { |
2165 | ioc_info(mrioc, |
2166 | "%s :dev removal handshake completed successfully: handle(0x%04x)\n" , |
2167 | __func__, drv_cmd->dev_handle); |
2168 | clear_bit(nr: drv_cmd->dev_handle, addr: mrioc->removepend_bitmap); |
2169 | } |
2170 | |
2171 | if (!list_empty(head: &mrioc->delayed_rmhs_list)) { |
2172 | delayed_dev_rmhs = list_entry(mrioc->delayed_rmhs_list.next, |
2173 | struct delayed_dev_rmhs_node, list); |
2174 | drv_cmd->dev_handle = delayed_dev_rmhs->handle; |
2175 | drv_cmd->retry_count = 0; |
2176 | drv_cmd->iou_rc = delayed_dev_rmhs->iou_rc; |
2177 | ioc_info(mrioc, |
2178 | "%s :dev_rmhs_iouctrl_complete: processing delayed TM: handle(0x%04x)\n" , |
2179 | __func__, drv_cmd->dev_handle); |
2180 | mpi3mr_dev_rmhs_send_tm(mrioc, handle: drv_cmd->dev_handle, cmdparam: drv_cmd, |
2181 | iou_rc: drv_cmd->iou_rc); |
2182 | list_del(entry: &delayed_dev_rmhs->list); |
2183 | kfree(objp: delayed_dev_rmhs); |
2184 | return; |
2185 | } |
2186 | |
2187 | clear_drv_cmd: |
2188 | drv_cmd->state = MPI3MR_CMD_NOTUSED; |
2189 | drv_cmd->callback = NULL; |
2190 | drv_cmd->retry_count = 0; |
2191 | drv_cmd->dev_handle = MPI3MR_INVALID_DEV_HANDLE; |
2192 | clear_bit(nr: cmd_idx, addr: mrioc->devrem_bitmap); |
2193 | } |
2194 | |
2195 | /** |
2196 | * mpi3mr_dev_rmhs_complete_tm - Device removal TM completion |
2197 | * @mrioc: Adapter instance reference |
2198 | * @drv_cmd: Internal command tracker |
2199 | * |
2200 | * Issues a target reset TM to the firmware from the device |
2201 | * removal TM pend list or issue IO unit control request as |
2202 | * part of device removal or hidden acknowledgment handshake. |
2203 | * |
2204 | * Return: Nothing |
2205 | */ |
2206 | static void mpi3mr_dev_rmhs_complete_tm(struct mpi3mr_ioc *mrioc, |
2207 | struct mpi3mr_drv_cmd *drv_cmd) |
2208 | { |
2209 | struct mpi3_iounit_control_request iou_ctrl; |
2210 | u16 cmd_idx = drv_cmd->host_tag - MPI3MR_HOSTTAG_DEVRMCMD_MIN; |
2211 | struct mpi3_scsi_task_mgmt_reply *tm_reply = NULL; |
2212 | int retval; |
2213 | |
2214 | if (drv_cmd->state & MPI3MR_CMD_RESET) |
2215 | goto clear_drv_cmd; |
2216 | |
2217 | if (drv_cmd->state & MPI3MR_CMD_REPLY_VALID) |
2218 | tm_reply = (struct mpi3_scsi_task_mgmt_reply *)drv_cmd->reply; |
2219 | |
2220 | if (tm_reply) |
2221 | pr_info(IOCNAME |
2222 | "dev_rmhs_tr_complete:handle(0x%04x), ioc_status(0x%04x), loginfo(0x%08x), term_count(%d)\n" , |
2223 | mrioc->name, drv_cmd->dev_handle, drv_cmd->ioc_status, |
2224 | drv_cmd->ioc_loginfo, |
2225 | le32_to_cpu(tm_reply->termination_count)); |
2226 | |
2227 | pr_info(IOCNAME "Issuing IOU CTL: handle(0x%04x) dev_rmhs idx(%d)\n" , |
2228 | mrioc->name, drv_cmd->dev_handle, cmd_idx); |
2229 | |
2230 | memset(&iou_ctrl, 0, sizeof(iou_ctrl)); |
2231 | |
2232 | drv_cmd->state = MPI3MR_CMD_PENDING; |
2233 | drv_cmd->is_waiting = 0; |
2234 | drv_cmd->callback = mpi3mr_dev_rmhs_complete_iou; |
2235 | iou_ctrl.operation = drv_cmd->iou_rc; |
2236 | iou_ctrl.param16[0] = cpu_to_le16(drv_cmd->dev_handle); |
2237 | iou_ctrl.host_tag = cpu_to_le16(drv_cmd->host_tag); |
2238 | iou_ctrl.function = MPI3_FUNCTION_IO_UNIT_CONTROL; |
2239 | |
2240 | retval = mpi3mr_admin_request_post(mrioc, admin_req: &iou_ctrl, admin_req_sz: sizeof(iou_ctrl), |
2241 | ignore_reset: 1); |
2242 | if (retval) { |
2243 | pr_err(IOCNAME "Issue DevRmHsTMIOUCTL: Admin post failed\n" , |
2244 | mrioc->name); |
2245 | goto clear_drv_cmd; |
2246 | } |
2247 | |
2248 | return; |
2249 | clear_drv_cmd: |
2250 | drv_cmd->state = MPI3MR_CMD_NOTUSED; |
2251 | drv_cmd->callback = NULL; |
2252 | drv_cmd->dev_handle = MPI3MR_INVALID_DEV_HANDLE; |
2253 | drv_cmd->retry_count = 0; |
2254 | clear_bit(nr: cmd_idx, addr: mrioc->devrem_bitmap); |
2255 | } |
2256 | |
2257 | /** |
2258 | * mpi3mr_dev_rmhs_send_tm - Issue TM for device removal |
2259 | * @mrioc: Adapter instance reference |
2260 | * @handle: Device handle |
2261 | * @cmdparam: Internal command tracker |
2262 | * @iou_rc: IO unit reason code |
2263 | * |
2264 | * Issues a target reset TM to the firmware or add it to a pend |
2265 | * list as part of device removal or hidden acknowledgment |
2266 | * handshake. |
2267 | * |
2268 | * Return: Nothing |
2269 | */ |
2270 | static void mpi3mr_dev_rmhs_send_tm(struct mpi3mr_ioc *mrioc, u16 handle, |
2271 | struct mpi3mr_drv_cmd *cmdparam, u8 iou_rc) |
2272 | { |
2273 | struct mpi3_scsi_task_mgmt_request tm_req; |
2274 | int retval = 0; |
2275 | u16 cmd_idx = MPI3MR_NUM_DEVRMCMD; |
2276 | u8 retrycount = 5; |
2277 | struct mpi3mr_drv_cmd *drv_cmd = cmdparam; |
2278 | struct delayed_dev_rmhs_node *delayed_dev_rmhs = NULL; |
2279 | struct mpi3mr_tgt_dev *tgtdev = NULL; |
2280 | unsigned long flags; |
2281 | |
2282 | spin_lock_irqsave(&mrioc->tgtdev_lock, flags); |
2283 | tgtdev = __mpi3mr_get_tgtdev_by_handle(mrioc, handle); |
2284 | if (tgtdev && (iou_rc == MPI3_CTRL_OP_REMOVE_DEVICE)) |
2285 | tgtdev->state = MPI3MR_DEV_REMOVE_HS_STARTED; |
2286 | spin_unlock_irqrestore(lock: &mrioc->tgtdev_lock, flags); |
2287 | |
2288 | if (drv_cmd) |
2289 | goto issue_cmd; |
2290 | do { |
2291 | cmd_idx = find_first_zero_bit(addr: mrioc->devrem_bitmap, |
2292 | MPI3MR_NUM_DEVRMCMD); |
2293 | if (cmd_idx < MPI3MR_NUM_DEVRMCMD) { |
2294 | if (!test_and_set_bit(nr: cmd_idx, addr: mrioc->devrem_bitmap)) |
2295 | break; |
2296 | cmd_idx = MPI3MR_NUM_DEVRMCMD; |
2297 | } |
2298 | } while (retrycount--); |
2299 | |
2300 | if (cmd_idx >= MPI3MR_NUM_DEVRMCMD) { |
2301 | delayed_dev_rmhs = kzalloc(size: sizeof(*delayed_dev_rmhs), |
2302 | GFP_ATOMIC); |
2303 | if (!delayed_dev_rmhs) |
2304 | return; |
2305 | INIT_LIST_HEAD(list: &delayed_dev_rmhs->list); |
2306 | delayed_dev_rmhs->handle = handle; |
2307 | delayed_dev_rmhs->iou_rc = iou_rc; |
2308 | list_add_tail(new: &delayed_dev_rmhs->list, |
2309 | head: &mrioc->delayed_rmhs_list); |
2310 | ioc_info(mrioc, "%s :DevRmHs: tr:handle(0x%04x) is postponed\n" , |
2311 | __func__, handle); |
2312 | return; |
2313 | } |
2314 | drv_cmd = &mrioc->dev_rmhs_cmds[cmd_idx]; |
2315 | |
2316 | issue_cmd: |
2317 | cmd_idx = drv_cmd->host_tag - MPI3MR_HOSTTAG_DEVRMCMD_MIN; |
2318 | ioc_info(mrioc, |
2319 | "%s :Issuing TR TM: for devhandle 0x%04x with dev_rmhs %d\n" , |
2320 | __func__, handle, cmd_idx); |
2321 | |
2322 | memset(&tm_req, 0, sizeof(tm_req)); |
2323 | if (drv_cmd->state & MPI3MR_CMD_PENDING) { |
2324 | ioc_err(mrioc, "%s :Issue TM: Command is in use\n" , __func__); |
2325 | goto out; |
2326 | } |
2327 | drv_cmd->state = MPI3MR_CMD_PENDING; |
2328 | drv_cmd->is_waiting = 0; |
2329 | drv_cmd->callback = mpi3mr_dev_rmhs_complete_tm; |
2330 | drv_cmd->dev_handle = handle; |
2331 | drv_cmd->iou_rc = iou_rc; |
2332 | tm_req.dev_handle = cpu_to_le16(handle); |
2333 | tm_req.task_type = MPI3_SCSITASKMGMT_TASKTYPE_TARGET_RESET; |
2334 | tm_req.host_tag = cpu_to_le16(drv_cmd->host_tag); |
2335 | tm_req.task_host_tag = cpu_to_le16(MPI3MR_HOSTTAG_INVALID); |
2336 | tm_req.function = MPI3_FUNCTION_SCSI_TASK_MGMT; |
2337 | |
2338 | set_bit(nr: handle, addr: mrioc->removepend_bitmap); |
2339 | retval = mpi3mr_admin_request_post(mrioc, admin_req: &tm_req, admin_req_sz: sizeof(tm_req), ignore_reset: 1); |
2340 | if (retval) { |
2341 | ioc_err(mrioc, "%s :Issue DevRmHsTM: Admin Post failed\n" , |
2342 | __func__); |
2343 | goto out_failed; |
2344 | } |
2345 | out: |
2346 | return; |
2347 | out_failed: |
2348 | drv_cmd->state = MPI3MR_CMD_NOTUSED; |
2349 | drv_cmd->callback = NULL; |
2350 | drv_cmd->dev_handle = MPI3MR_INVALID_DEV_HANDLE; |
2351 | drv_cmd->retry_count = 0; |
2352 | clear_bit(nr: cmd_idx, addr: mrioc->devrem_bitmap); |
2353 | } |
2354 | |
2355 | /** |
2356 | * mpi3mr_complete_evt_ack - event ack request completion |
2357 | * @mrioc: Adapter instance reference |
2358 | * @drv_cmd: Internal command tracker |
2359 | * |
2360 | * This is the completion handler for non blocking event |
2361 | * acknowledgment sent to the firmware and this will issue any |
2362 | * pending event acknowledgment request. |
2363 | * |
2364 | * Return: Nothing |
2365 | */ |
2366 | static void mpi3mr_complete_evt_ack(struct mpi3mr_ioc *mrioc, |
2367 | struct mpi3mr_drv_cmd *drv_cmd) |
2368 | { |
2369 | u16 cmd_idx = drv_cmd->host_tag - MPI3MR_HOSTTAG_EVTACKCMD_MIN; |
2370 | struct delayed_evt_ack_node *delayed_evtack = NULL; |
2371 | |
2372 | if (drv_cmd->state & MPI3MR_CMD_RESET) |
2373 | goto clear_drv_cmd; |
2374 | |
2375 | if (drv_cmd->ioc_status != MPI3_IOCSTATUS_SUCCESS) { |
2376 | dprint_event_th(mrioc, |
2377 | "immediate event ack failed with ioc_status(0x%04x) log_info(0x%08x)\n" , |
2378 | (drv_cmd->ioc_status & MPI3_IOCSTATUS_STATUS_MASK), |
2379 | drv_cmd->ioc_loginfo); |
2380 | } |
2381 | |
2382 | if (!list_empty(head: &mrioc->delayed_evtack_cmds_list)) { |
2383 | delayed_evtack = |
2384 | list_entry(mrioc->delayed_evtack_cmds_list.next, |
2385 | struct delayed_evt_ack_node, list); |
2386 | mpi3mr_send_event_ack(mrioc, event: delayed_evtack->event, cmdparam: drv_cmd, |
2387 | event_ctx: delayed_evtack->event_ctx); |
2388 | list_del(entry: &delayed_evtack->list); |
2389 | kfree(objp: delayed_evtack); |
2390 | return; |
2391 | } |
2392 | clear_drv_cmd: |
2393 | drv_cmd->state = MPI3MR_CMD_NOTUSED; |
2394 | drv_cmd->callback = NULL; |
2395 | clear_bit(nr: cmd_idx, addr: mrioc->evtack_cmds_bitmap); |
2396 | } |
2397 | |
2398 | /** |
2399 | * mpi3mr_send_event_ack - Issue event acknwoledgment request |
2400 | * @mrioc: Adapter instance reference |
2401 | * @event: MPI3 event id |
2402 | * @cmdparam: Internal command tracker |
2403 | * @event_ctx: event context |
2404 | * |
2405 | * Issues event acknowledgment request to the firmware if there |
2406 | * is a free command to send the event ack else it to a pend |
2407 | * list so that it will be processed on a completion of a prior |
2408 | * event acknowledgment . |
2409 | * |
2410 | * Return: Nothing |
2411 | */ |
2412 | static void mpi3mr_send_event_ack(struct mpi3mr_ioc *mrioc, u8 event, |
2413 | struct mpi3mr_drv_cmd *cmdparam, u32 event_ctx) |
2414 | { |
2415 | struct mpi3_event_ack_request evtack_req; |
2416 | int retval = 0; |
2417 | u8 retrycount = 5; |
2418 | u16 cmd_idx = MPI3MR_NUM_EVTACKCMD; |
2419 | struct mpi3mr_drv_cmd *drv_cmd = cmdparam; |
2420 | struct delayed_evt_ack_node *delayed_evtack = NULL; |
2421 | |
2422 | if (drv_cmd) { |
2423 | dprint_event_th(mrioc, |
2424 | "sending delayed event ack in the top half for event(0x%02x), event_ctx(0x%08x)\n" , |
2425 | event, event_ctx); |
2426 | goto issue_cmd; |
2427 | } |
2428 | dprint_event_th(mrioc, |
2429 | "sending event ack in the top half for event(0x%02x), event_ctx(0x%08x)\n" , |
2430 | event, event_ctx); |
2431 | do { |
2432 | cmd_idx = find_first_zero_bit(addr: mrioc->evtack_cmds_bitmap, |
2433 | MPI3MR_NUM_EVTACKCMD); |
2434 | if (cmd_idx < MPI3MR_NUM_EVTACKCMD) { |
2435 | if (!test_and_set_bit(nr: cmd_idx, |
2436 | addr: mrioc->evtack_cmds_bitmap)) |
2437 | break; |
2438 | cmd_idx = MPI3MR_NUM_EVTACKCMD; |
2439 | } |
2440 | } while (retrycount--); |
2441 | |
2442 | if (cmd_idx >= MPI3MR_NUM_EVTACKCMD) { |
2443 | delayed_evtack = kzalloc(size: sizeof(*delayed_evtack), |
2444 | GFP_ATOMIC); |
2445 | if (!delayed_evtack) |
2446 | return; |
2447 | INIT_LIST_HEAD(list: &delayed_evtack->list); |
2448 | delayed_evtack->event = event; |
2449 | delayed_evtack->event_ctx = event_ctx; |
2450 | list_add_tail(new: &delayed_evtack->list, |
2451 | head: &mrioc->delayed_evtack_cmds_list); |
2452 | dprint_event_th(mrioc, |
2453 | "event ack in the top half for event(0x%02x), event_ctx(0x%08x) is postponed\n" , |
2454 | event, event_ctx); |
2455 | return; |
2456 | } |
2457 | drv_cmd = &mrioc->evtack_cmds[cmd_idx]; |
2458 | |
2459 | issue_cmd: |
2460 | cmd_idx = drv_cmd->host_tag - MPI3MR_HOSTTAG_EVTACKCMD_MIN; |
2461 | |
2462 | memset(&evtack_req, 0, sizeof(evtack_req)); |
2463 | if (drv_cmd->state & MPI3MR_CMD_PENDING) { |
2464 | dprint_event_th(mrioc, |
2465 | "sending event ack failed due to command in use\n" ); |
2466 | goto out; |
2467 | } |
2468 | drv_cmd->state = MPI3MR_CMD_PENDING; |
2469 | drv_cmd->is_waiting = 0; |
2470 | drv_cmd->callback = mpi3mr_complete_evt_ack; |
2471 | evtack_req.host_tag = cpu_to_le16(drv_cmd->host_tag); |
2472 | evtack_req.function = MPI3_FUNCTION_EVENT_ACK; |
2473 | evtack_req.event = event; |
2474 | evtack_req.event_context = cpu_to_le32(event_ctx); |
2475 | retval = mpi3mr_admin_request_post(mrioc, admin_req: &evtack_req, |
2476 | admin_req_sz: sizeof(evtack_req), ignore_reset: 1); |
2477 | if (retval) { |
2478 | dprint_event_th(mrioc, |
2479 | "posting event ack request is failed\n" ); |
2480 | goto out_failed; |
2481 | } |
2482 | |
2483 | dprint_event_th(mrioc, |
2484 | "event ack in the top half for event(0x%02x), event_ctx(0x%08x) is posted\n" , |
2485 | event, event_ctx); |
2486 | out: |
2487 | return; |
2488 | out_failed: |
2489 | drv_cmd->state = MPI3MR_CMD_NOTUSED; |
2490 | drv_cmd->callback = NULL; |
2491 | clear_bit(nr: cmd_idx, addr: mrioc->evtack_cmds_bitmap); |
2492 | } |
2493 | |
2494 | /** |
2495 | * mpi3mr_pcietopochg_evt_th - PCIETopologyChange evt tophalf |
2496 | * @mrioc: Adapter instance reference |
2497 | * @event_reply: event data |
2498 | * |
2499 | * Checks for the reason code and based on that either block I/O |
2500 | * to device, or unblock I/O to the device, or start the device |
2501 | * removal handshake with reason as remove with the firmware for |
2502 | * PCIe devices. |
2503 | * |
2504 | * Return: Nothing |
2505 | */ |
2506 | static void mpi3mr_pcietopochg_evt_th(struct mpi3mr_ioc *mrioc, |
2507 | struct mpi3_event_notification_reply *event_reply) |
2508 | { |
2509 | struct mpi3_event_data_pcie_topology_change_list *topo_evt = |
2510 | (struct mpi3_event_data_pcie_topology_change_list *)event_reply->event_data; |
2511 | int i; |
2512 | u16 handle; |
2513 | u8 reason_code; |
2514 | struct mpi3mr_tgt_dev *tgtdev = NULL; |
2515 | struct mpi3mr_stgt_priv_data *scsi_tgt_priv_data = NULL; |
2516 | |
2517 | for (i = 0; i < topo_evt->num_entries; i++) { |
2518 | handle = le16_to_cpu(topo_evt->port_entry[i].attached_dev_handle); |
2519 | if (!handle) |
2520 | continue; |
2521 | reason_code = topo_evt->port_entry[i].port_status; |
2522 | scsi_tgt_priv_data = NULL; |
2523 | tgtdev = mpi3mr_get_tgtdev_by_handle(mrioc, handle); |
2524 | if (tgtdev && tgtdev->starget && tgtdev->starget->hostdata) |
2525 | scsi_tgt_priv_data = (struct mpi3mr_stgt_priv_data *) |
2526 | tgtdev->starget->hostdata; |
2527 | switch (reason_code) { |
2528 | case MPI3_EVENT_PCIE_TOPO_PS_NOT_RESPONDING: |
2529 | if (scsi_tgt_priv_data) { |
2530 | scsi_tgt_priv_data->dev_removed = 1; |
2531 | scsi_tgt_priv_data->dev_removedelay = 0; |
2532 | atomic_set(v: &scsi_tgt_priv_data->block_io, i: 0); |
2533 | } |
2534 | mpi3mr_dev_rmhs_send_tm(mrioc, handle, NULL, |
2535 | MPI3_CTRL_OP_REMOVE_DEVICE); |
2536 | break; |
2537 | case MPI3_EVENT_PCIE_TOPO_PS_DELAY_NOT_RESPONDING: |
2538 | if (scsi_tgt_priv_data) { |
2539 | scsi_tgt_priv_data->dev_removedelay = 1; |
2540 | atomic_inc(v: &scsi_tgt_priv_data->block_io); |
2541 | } |
2542 | break; |
2543 | case MPI3_EVENT_PCIE_TOPO_PS_RESPONDING: |
2544 | if (scsi_tgt_priv_data && |
2545 | scsi_tgt_priv_data->dev_removedelay) { |
2546 | scsi_tgt_priv_data->dev_removedelay = 0; |
2547 | atomic_dec_if_positive |
2548 | (v: &scsi_tgt_priv_data->block_io); |
2549 | } |
2550 | break; |
2551 | case MPI3_EVENT_PCIE_TOPO_PS_PORT_CHANGED: |
2552 | default: |
2553 | break; |
2554 | } |
2555 | if (tgtdev) |
2556 | mpi3mr_tgtdev_put(s: tgtdev); |
2557 | } |
2558 | } |
2559 | |
2560 | /** |
2561 | * mpi3mr_sastopochg_evt_th - SASTopologyChange evt tophalf |
2562 | * @mrioc: Adapter instance reference |
2563 | * @event_reply: event data |
2564 | * |
2565 | * Checks for the reason code and based on that either block I/O |
2566 | * to device, or unblock I/O to the device, or start the device |
2567 | * removal handshake with reason as remove with the firmware for |
2568 | * SAS/SATA devices. |
2569 | * |
2570 | * Return: Nothing |
2571 | */ |
2572 | static void mpi3mr_sastopochg_evt_th(struct mpi3mr_ioc *mrioc, |
2573 | struct mpi3_event_notification_reply *event_reply) |
2574 | { |
2575 | struct mpi3_event_data_sas_topology_change_list *topo_evt = |
2576 | (struct mpi3_event_data_sas_topology_change_list *)event_reply->event_data; |
2577 | int i; |
2578 | u16 handle; |
2579 | u8 reason_code; |
2580 | struct mpi3mr_tgt_dev *tgtdev = NULL; |
2581 | struct mpi3mr_stgt_priv_data *scsi_tgt_priv_data = NULL; |
2582 | |
2583 | for (i = 0; i < topo_evt->num_entries; i++) { |
2584 | handle = le16_to_cpu(topo_evt->phy_entry[i].attached_dev_handle); |
2585 | if (!handle) |
2586 | continue; |
2587 | reason_code = topo_evt->phy_entry[i].status & |
2588 | MPI3_EVENT_SAS_TOPO_PHY_RC_MASK; |
2589 | scsi_tgt_priv_data = NULL; |
2590 | tgtdev = mpi3mr_get_tgtdev_by_handle(mrioc, handle); |
2591 | if (tgtdev && tgtdev->starget && tgtdev->starget->hostdata) |
2592 | scsi_tgt_priv_data = (struct mpi3mr_stgt_priv_data *) |
2593 | tgtdev->starget->hostdata; |
2594 | switch (reason_code) { |
2595 | case MPI3_EVENT_SAS_TOPO_PHY_RC_TARG_NOT_RESPONDING: |
2596 | if (scsi_tgt_priv_data) { |
2597 | scsi_tgt_priv_data->dev_removed = 1; |
2598 | scsi_tgt_priv_data->dev_removedelay = 0; |
2599 | atomic_set(v: &scsi_tgt_priv_data->block_io, i: 0); |
2600 | } |
2601 | mpi3mr_dev_rmhs_send_tm(mrioc, handle, NULL, |
2602 | MPI3_CTRL_OP_REMOVE_DEVICE); |
2603 | break; |
2604 | case MPI3_EVENT_SAS_TOPO_PHY_RC_DELAY_NOT_RESPONDING: |
2605 | if (scsi_tgt_priv_data) { |
2606 | scsi_tgt_priv_data->dev_removedelay = 1; |
2607 | atomic_inc(v: &scsi_tgt_priv_data->block_io); |
2608 | } |
2609 | break; |
2610 | case MPI3_EVENT_SAS_TOPO_PHY_RC_RESPONDING: |
2611 | if (scsi_tgt_priv_data && |
2612 | scsi_tgt_priv_data->dev_removedelay) { |
2613 | scsi_tgt_priv_data->dev_removedelay = 0; |
2614 | atomic_dec_if_positive |
2615 | (v: &scsi_tgt_priv_data->block_io); |
2616 | } |
2617 | break; |
2618 | case MPI3_EVENT_SAS_TOPO_PHY_RC_PHY_CHANGED: |
2619 | default: |
2620 | break; |
2621 | } |
2622 | if (tgtdev) |
2623 | mpi3mr_tgtdev_put(s: tgtdev); |
2624 | } |
2625 | } |
2626 | |
2627 | /** |
2628 | * mpi3mr_devstatuschg_evt_th - DeviceStatusChange evt tophalf |
2629 | * @mrioc: Adapter instance reference |
2630 | * @event_reply: event data |
2631 | * |
2632 | * Checks for the reason code and based on that either block I/O |
2633 | * to device, or unblock I/O to the device, or start the device |
2634 | * removal handshake with reason as remove/hide acknowledgment |
2635 | * with the firmware. |
2636 | * |
2637 | * Return: Nothing |
2638 | */ |
2639 | static void mpi3mr_devstatuschg_evt_th(struct mpi3mr_ioc *mrioc, |
2640 | struct mpi3_event_notification_reply *event_reply) |
2641 | { |
2642 | u16 dev_handle = 0; |
2643 | u8 ublock = 0, block = 0, hide = 0, delete = 0, remove = 0; |
2644 | struct mpi3mr_tgt_dev *tgtdev = NULL; |
2645 | struct mpi3mr_stgt_priv_data *scsi_tgt_priv_data = NULL; |
2646 | struct mpi3_event_data_device_status_change *evtdata = |
2647 | (struct mpi3_event_data_device_status_change *)event_reply->event_data; |
2648 | |
2649 | if (mrioc->stop_drv_processing) |
2650 | goto out; |
2651 | |
2652 | dev_handle = le16_to_cpu(evtdata->dev_handle); |
2653 | |
2654 | switch (evtdata->reason_code) { |
2655 | case MPI3_EVENT_DEV_STAT_RC_INT_DEVICE_RESET_STRT: |
2656 | case MPI3_EVENT_DEV_STAT_RC_INT_IT_NEXUS_RESET_STRT: |
2657 | block = 1; |
2658 | break; |
2659 | case MPI3_EVENT_DEV_STAT_RC_HIDDEN: |
2660 | delete = 1; |
2661 | hide = 1; |
2662 | break; |
2663 | case MPI3_EVENT_DEV_STAT_RC_VD_NOT_RESPONDING: |
2664 | delete = 1; |
2665 | remove = 1; |
2666 | break; |
2667 | case MPI3_EVENT_DEV_STAT_RC_INT_DEVICE_RESET_CMP: |
2668 | case MPI3_EVENT_DEV_STAT_RC_INT_IT_NEXUS_RESET_CMP: |
2669 | ublock = 1; |
2670 | break; |
2671 | default: |
2672 | break; |
2673 | } |
2674 | |
2675 | tgtdev = mpi3mr_get_tgtdev_by_handle(mrioc, handle: dev_handle); |
2676 | if (!tgtdev) |
2677 | goto out; |
2678 | if (hide) |
2679 | tgtdev->is_hidden = hide; |
2680 | if (tgtdev->starget && tgtdev->starget->hostdata) { |
2681 | scsi_tgt_priv_data = (struct mpi3mr_stgt_priv_data *) |
2682 | tgtdev->starget->hostdata; |
2683 | if (block) |
2684 | atomic_inc(v: &scsi_tgt_priv_data->block_io); |
2685 | if (delete) |
2686 | scsi_tgt_priv_data->dev_removed = 1; |
2687 | if (ublock) |
2688 | atomic_dec_if_positive(v: &scsi_tgt_priv_data->block_io); |
2689 | } |
2690 | if (remove) |
2691 | mpi3mr_dev_rmhs_send_tm(mrioc, handle: dev_handle, NULL, |
2692 | MPI3_CTRL_OP_REMOVE_DEVICE); |
2693 | if (hide) |
2694 | mpi3mr_dev_rmhs_send_tm(mrioc, handle: dev_handle, NULL, |
2695 | MPI3_CTRL_OP_HIDDEN_ACK); |
2696 | |
2697 | out: |
2698 | if (tgtdev) |
2699 | mpi3mr_tgtdev_put(s: tgtdev); |
2700 | } |
2701 | |
2702 | /** |
2703 | * mpi3mr_preparereset_evt_th - Prepare for reset event tophalf |
2704 | * @mrioc: Adapter instance reference |
2705 | * @event_reply: event data |
2706 | * |
2707 | * Blocks and unblocks host level I/O based on the reason code |
2708 | * |
2709 | * Return: Nothing |
2710 | */ |
2711 | static void mpi3mr_preparereset_evt_th(struct mpi3mr_ioc *mrioc, |
2712 | struct mpi3_event_notification_reply *event_reply) |
2713 | { |
2714 | struct mpi3_event_data_prepare_for_reset *evtdata = |
2715 | (struct mpi3_event_data_prepare_for_reset *)event_reply->event_data; |
2716 | |
2717 | if (evtdata->reason_code == MPI3_EVENT_PREPARE_RESET_RC_START) { |
2718 | dprint_event_th(mrioc, |
2719 | "prepare for reset event top half with rc=start\n" ); |
2720 | if (mrioc->prepare_for_reset) |
2721 | return; |
2722 | mrioc->prepare_for_reset = 1; |
2723 | mrioc->prepare_for_reset_timeout_counter = 0; |
2724 | } else if (evtdata->reason_code == MPI3_EVENT_PREPARE_RESET_RC_ABORT) { |
2725 | dprint_event_th(mrioc, |
2726 | "prepare for reset top half with rc=abort\n" ); |
2727 | mrioc->prepare_for_reset = 0; |
2728 | mrioc->prepare_for_reset_timeout_counter = 0; |
2729 | } |
2730 | if ((event_reply->msg_flags & MPI3_EVENT_NOTIFY_MSGFLAGS_ACK_MASK) |
2731 | == MPI3_EVENT_NOTIFY_MSGFLAGS_ACK_REQUIRED) |
2732 | mpi3mr_send_event_ack(mrioc, event: event_reply->event, NULL, |
2733 | le32_to_cpu(event_reply->event_context)); |
2734 | } |
2735 | |
2736 | /** |
2737 | * mpi3mr_energypackchg_evt_th - Energy pack change evt tophalf |
2738 | * @mrioc: Adapter instance reference |
2739 | * @event_reply: event data |
2740 | * |
2741 | * Identifies the new shutdown timeout value and update. |
2742 | * |
2743 | * Return: Nothing |
2744 | */ |
2745 | static void mpi3mr_energypackchg_evt_th(struct mpi3mr_ioc *mrioc, |
2746 | struct mpi3_event_notification_reply *event_reply) |
2747 | { |
2748 | struct mpi3_event_data_energy_pack_change *evtdata = |
2749 | (struct mpi3_event_data_energy_pack_change *)event_reply->event_data; |
2750 | u16 shutdown_timeout = le16_to_cpu(evtdata->shutdown_timeout); |
2751 | |
2752 | if (shutdown_timeout <= 0) { |
2753 | ioc_warn(mrioc, |
2754 | "%s :Invalid Shutdown Timeout received = %d\n" , |
2755 | __func__, shutdown_timeout); |
2756 | return; |
2757 | } |
2758 | |
2759 | ioc_info(mrioc, |
2760 | "%s :Previous Shutdown Timeout Value = %d New Shutdown Timeout Value = %d\n" , |
2761 | __func__, mrioc->facts.shutdown_timeout, shutdown_timeout); |
2762 | mrioc->facts.shutdown_timeout = shutdown_timeout; |
2763 | } |
2764 | |
2765 | /** |
2766 | * mpi3mr_cablemgmt_evt_th - Cable management event tophalf |
2767 | * @mrioc: Adapter instance reference |
2768 | * @event_reply: event data |
2769 | * |
2770 | * Displays Cable manegemt event details. |
2771 | * |
2772 | * Return: Nothing |
2773 | */ |
2774 | static void mpi3mr_cablemgmt_evt_th(struct mpi3mr_ioc *mrioc, |
2775 | struct mpi3_event_notification_reply *event_reply) |
2776 | { |
2777 | struct mpi3_event_data_cable_management *evtdata = |
2778 | (struct mpi3_event_data_cable_management *)event_reply->event_data; |
2779 | |
2780 | switch (evtdata->status) { |
2781 | case MPI3_EVENT_CABLE_MGMT_STATUS_INSUFFICIENT_POWER: |
2782 | { |
2783 | ioc_info(mrioc, "An active cable with receptacle_id %d cannot be powered.\n" |
2784 | "Devices connected to this cable are not detected.\n" |
2785 | "This cable requires %d mW of power.\n" , |
2786 | evtdata->receptacle_id, |
2787 | le32_to_cpu(evtdata->active_cable_power_requirement)); |
2788 | break; |
2789 | } |
2790 | case MPI3_EVENT_CABLE_MGMT_STATUS_DEGRADED: |
2791 | { |
2792 | ioc_info(mrioc, "A cable with receptacle_id %d is not running at optimal speed\n" , |
2793 | evtdata->receptacle_id); |
2794 | break; |
2795 | } |
2796 | default: |
2797 | break; |
2798 | } |
2799 | } |
2800 | |
2801 | /** |
2802 | * mpi3mr_add_event_wait_for_device_refresh - Add Wait for Device Refresh Event |
2803 | * @mrioc: Adapter instance reference |
2804 | * |
2805 | * Add driver specific event to make sure that the driver won't process the |
2806 | * events until all the devices are refreshed during soft reset. |
2807 | * |
2808 | * Return: Nothing |
2809 | */ |
2810 | void mpi3mr_add_event_wait_for_device_refresh(struct mpi3mr_ioc *mrioc) |
2811 | { |
2812 | struct mpi3mr_fwevt *fwevt = NULL; |
2813 | |
2814 | fwevt = mpi3mr_alloc_fwevt(len: 0); |
2815 | if (!fwevt) { |
2816 | dprint_event_th(mrioc, |
2817 | "failed to schedule bottom half handler for event(0x%02x)\n" , |
2818 | MPI3_EVENT_WAIT_FOR_DEVICES_TO_REFRESH); |
2819 | return; |
2820 | } |
2821 | fwevt->mrioc = mrioc; |
2822 | fwevt->event_id = MPI3_EVENT_WAIT_FOR_DEVICES_TO_REFRESH; |
2823 | fwevt->send_ack = 0; |
2824 | fwevt->process_evt = 1; |
2825 | fwevt->evt_ctx = 0; |
2826 | fwevt->event_data_size = 0; |
2827 | mpi3mr_fwevt_add_to_list(mrioc, fwevt); |
2828 | } |
2829 | |
2830 | /** |
2831 | * mpi3mr_os_handle_events - Firmware event handler |
2832 | * @mrioc: Adapter instance reference |
2833 | * @event_reply: event data |
2834 | * |
2835 | * Identify whteher the event has to handled and acknowledged |
2836 | * and either process the event in the tophalf and/or schedule a |
2837 | * bottom half through mpi3mr_fwevt_worker. |
2838 | * |
2839 | * Return: Nothing |
2840 | */ |
2841 | void mpi3mr_os_handle_events(struct mpi3mr_ioc *mrioc, |
2842 | struct mpi3_event_notification_reply *event_reply) |
2843 | { |
2844 | u16 evt_type, sz; |
2845 | struct mpi3mr_fwevt *fwevt = NULL; |
2846 | bool ack_req = 0, process_evt_bh = 0; |
2847 | |
2848 | if (mrioc->stop_drv_processing) |
2849 | return; |
2850 | |
2851 | if ((event_reply->msg_flags & MPI3_EVENT_NOTIFY_MSGFLAGS_ACK_MASK) |
2852 | == MPI3_EVENT_NOTIFY_MSGFLAGS_ACK_REQUIRED) |
2853 | ack_req = 1; |
2854 | |
2855 | evt_type = event_reply->event; |
2856 | |
2857 | switch (evt_type) { |
2858 | case MPI3_EVENT_DEVICE_ADDED: |
2859 | { |
2860 | struct mpi3_device_page0 *dev_pg0 = |
2861 | (struct mpi3_device_page0 *)event_reply->event_data; |
2862 | if (mpi3mr_create_tgtdev(mrioc, dev_pg0)) |
2863 | ioc_err(mrioc, |
2864 | "%s :Failed to add device in the device add event\n" , |
2865 | __func__); |
2866 | else |
2867 | process_evt_bh = 1; |
2868 | break; |
2869 | } |
2870 | case MPI3_EVENT_DEVICE_STATUS_CHANGE: |
2871 | { |
2872 | process_evt_bh = 1; |
2873 | mpi3mr_devstatuschg_evt_th(mrioc, event_reply); |
2874 | break; |
2875 | } |
2876 | case MPI3_EVENT_SAS_TOPOLOGY_CHANGE_LIST: |
2877 | { |
2878 | process_evt_bh = 1; |
2879 | mpi3mr_sastopochg_evt_th(mrioc, event_reply); |
2880 | break; |
2881 | } |
2882 | case MPI3_EVENT_PCIE_TOPOLOGY_CHANGE_LIST: |
2883 | { |
2884 | process_evt_bh = 1; |
2885 | mpi3mr_pcietopochg_evt_th(mrioc, event_reply); |
2886 | break; |
2887 | } |
2888 | case MPI3_EVENT_PREPARE_FOR_RESET: |
2889 | { |
2890 | mpi3mr_preparereset_evt_th(mrioc, event_reply); |
2891 | ack_req = 0; |
2892 | break; |
2893 | } |
2894 | case MPI3_EVENT_DEVICE_INFO_CHANGED: |
2895 | case MPI3_EVENT_LOG_DATA: |
2896 | case MPI3_EVENT_ENCL_DEVICE_STATUS_CHANGE: |
2897 | case MPI3_EVENT_ENCL_DEVICE_ADDED: |
2898 | { |
2899 | process_evt_bh = 1; |
2900 | break; |
2901 | } |
2902 | case MPI3_EVENT_ENERGY_PACK_CHANGE: |
2903 | { |
2904 | mpi3mr_energypackchg_evt_th(mrioc, event_reply); |
2905 | break; |
2906 | } |
2907 | case MPI3_EVENT_CABLE_MGMT: |
2908 | { |
2909 | mpi3mr_cablemgmt_evt_th(mrioc, event_reply); |
2910 | break; |
2911 | } |
2912 | case MPI3_EVENT_SAS_DISCOVERY: |
2913 | case MPI3_EVENT_SAS_DEVICE_DISCOVERY_ERROR: |
2914 | case MPI3_EVENT_SAS_BROADCAST_PRIMITIVE: |
2915 | case MPI3_EVENT_PCIE_ENUMERATION: |
2916 | break; |
2917 | default: |
2918 | ioc_info(mrioc, "%s :event 0x%02x is not handled\n" , |
2919 | __func__, evt_type); |
2920 | break; |
2921 | } |
2922 | if (process_evt_bh || ack_req) { |
2923 | sz = event_reply->event_data_length * 4; |
2924 | fwevt = mpi3mr_alloc_fwevt(len: sz); |
2925 | if (!fwevt) { |
2926 | ioc_info(mrioc, "%s :failure at %s:%d/%s()!\n" , |
2927 | __func__, __FILE__, __LINE__, __func__); |
2928 | return; |
2929 | } |
2930 | |
2931 | memcpy(fwevt->event_data, event_reply->event_data, sz); |
2932 | fwevt->mrioc = mrioc; |
2933 | fwevt->event_id = evt_type; |
2934 | fwevt->send_ack = ack_req; |
2935 | fwevt->process_evt = process_evt_bh; |
2936 | fwevt->evt_ctx = le32_to_cpu(event_reply->event_context); |
2937 | mpi3mr_fwevt_add_to_list(mrioc, fwevt); |
2938 | } |
2939 | } |
2940 | |
2941 | /** |
2942 | * mpi3mr_setup_eedp - Setup EEDP information in MPI3 SCSI IO |
2943 | * @mrioc: Adapter instance reference |
2944 | * @scmd: SCSI command reference |
2945 | * @scsiio_req: MPI3 SCSI IO request |
2946 | * |
2947 | * Identifies the protection information flags from the SCSI |
2948 | * command and set appropriate flags in the MPI3 SCSI IO |
2949 | * request. |
2950 | * |
2951 | * Return: Nothing |
2952 | */ |
2953 | static void mpi3mr_setup_eedp(struct mpi3mr_ioc *mrioc, |
2954 | struct scsi_cmnd *scmd, struct mpi3_scsi_io_request *scsiio_req) |
2955 | { |
2956 | u16 eedp_flags = 0; |
2957 | unsigned char prot_op = scsi_get_prot_op(scmd); |
2958 | |
2959 | switch (prot_op) { |
2960 | case SCSI_PROT_NORMAL: |
2961 | return; |
2962 | case SCSI_PROT_READ_STRIP: |
2963 | eedp_flags = MPI3_EEDPFLAGS_EEDP_OP_CHECK_REMOVE; |
2964 | break; |
2965 | case SCSI_PROT_WRITE_INSERT: |
2966 | eedp_flags = MPI3_EEDPFLAGS_EEDP_OP_INSERT; |
2967 | break; |
2968 | case SCSI_PROT_READ_INSERT: |
2969 | eedp_flags = MPI3_EEDPFLAGS_EEDP_OP_INSERT; |
2970 | scsiio_req->msg_flags |= MPI3_SCSIIO_MSGFLAGS_METASGL_VALID; |
2971 | break; |
2972 | case SCSI_PROT_WRITE_STRIP: |
2973 | eedp_flags = MPI3_EEDPFLAGS_EEDP_OP_CHECK_REMOVE; |
2974 | scsiio_req->msg_flags |= MPI3_SCSIIO_MSGFLAGS_METASGL_VALID; |
2975 | break; |
2976 | case SCSI_PROT_READ_PASS: |
2977 | eedp_flags = MPI3_EEDPFLAGS_EEDP_OP_CHECK; |
2978 | scsiio_req->msg_flags |= MPI3_SCSIIO_MSGFLAGS_METASGL_VALID; |
2979 | break; |
2980 | case SCSI_PROT_WRITE_PASS: |
2981 | if (scmd->prot_flags & SCSI_PROT_IP_CHECKSUM) { |
2982 | eedp_flags = MPI3_EEDPFLAGS_EEDP_OP_CHECK_REGEN; |
2983 | scsiio_req->sgl[0].eedp.application_tag_translation_mask = |
2984 | 0xffff; |
2985 | } else |
2986 | eedp_flags = MPI3_EEDPFLAGS_EEDP_OP_CHECK; |
2987 | |
2988 | scsiio_req->msg_flags |= MPI3_SCSIIO_MSGFLAGS_METASGL_VALID; |
2989 | break; |
2990 | default: |
2991 | return; |
2992 | } |
2993 | |
2994 | if (scmd->prot_flags & SCSI_PROT_GUARD_CHECK) |
2995 | eedp_flags |= MPI3_EEDPFLAGS_CHK_GUARD; |
2996 | |
2997 | if (scmd->prot_flags & SCSI_PROT_IP_CHECKSUM) |
2998 | eedp_flags |= MPI3_EEDPFLAGS_HOST_GUARD_IP_CHKSUM; |
2999 | |
3000 | if (scmd->prot_flags & SCSI_PROT_REF_CHECK) { |
3001 | eedp_flags |= MPI3_EEDPFLAGS_CHK_REF_TAG | |
3002 | MPI3_EEDPFLAGS_INCR_PRI_REF_TAG; |
3003 | scsiio_req->cdb.eedp32.primary_reference_tag = |
3004 | cpu_to_be32(scsi_prot_ref_tag(scmd)); |
3005 | } |
3006 | |
3007 | if (scmd->prot_flags & SCSI_PROT_REF_INCREMENT) |
3008 | eedp_flags |= MPI3_EEDPFLAGS_INCR_PRI_REF_TAG; |
3009 | |
3010 | eedp_flags |= MPI3_EEDPFLAGS_ESC_MODE_APPTAG_DISABLE; |
3011 | |
3012 | switch (scsi_prot_interval(scmd)) { |
3013 | case 512: |
3014 | scsiio_req->sgl[0].eedp.user_data_size = MPI3_EEDP_UDS_512; |
3015 | break; |
3016 | case 520: |
3017 | scsiio_req->sgl[0].eedp.user_data_size = MPI3_EEDP_UDS_520; |
3018 | break; |
3019 | case 4080: |
3020 | scsiio_req->sgl[0].eedp.user_data_size = MPI3_EEDP_UDS_4080; |
3021 | break; |
3022 | case 4088: |
3023 | scsiio_req->sgl[0].eedp.user_data_size = MPI3_EEDP_UDS_4088; |
3024 | break; |
3025 | case 4096: |
3026 | scsiio_req->sgl[0].eedp.user_data_size = MPI3_EEDP_UDS_4096; |
3027 | break; |
3028 | case 4104: |
3029 | scsiio_req->sgl[0].eedp.user_data_size = MPI3_EEDP_UDS_4104; |
3030 | break; |
3031 | case 4160: |
3032 | scsiio_req->sgl[0].eedp.user_data_size = MPI3_EEDP_UDS_4160; |
3033 | break; |
3034 | default: |
3035 | break; |
3036 | } |
3037 | |
3038 | scsiio_req->sgl[0].eedp.eedp_flags = cpu_to_le16(eedp_flags); |
3039 | scsiio_req->sgl[0].eedp.flags = MPI3_SGE_FLAGS_ELEMENT_TYPE_EXTENDED; |
3040 | } |
3041 | |
3042 | /** |
3043 | * mpi3mr_build_sense_buffer - Map sense information |
3044 | * @desc: Sense type |
3045 | * @buf: Sense buffer to populate |
3046 | * @key: Sense key |
3047 | * @asc: Additional sense code |
3048 | * @ascq: Additional sense code qualifier |
3049 | * |
3050 | * Maps the given sense information into either descriptor or |
3051 | * fixed format sense data. |
3052 | * |
3053 | * Return: Nothing |
3054 | */ |
3055 | static inline void mpi3mr_build_sense_buffer(int desc, u8 *buf, u8 key, |
3056 | u8 asc, u8 ascq) |
3057 | { |
3058 | if (desc) { |
3059 | buf[0] = 0x72; /* descriptor, current */ |
3060 | buf[1] = key; |
3061 | buf[2] = asc; |
3062 | buf[3] = ascq; |
3063 | buf[7] = 0; |
3064 | } else { |
3065 | buf[0] = 0x70; /* fixed, current */ |
3066 | buf[2] = key; |
3067 | buf[7] = 0xa; |
3068 | buf[12] = asc; |
3069 | buf[13] = ascq; |
3070 | } |
3071 | } |
3072 | |
3073 | /** |
3074 | * mpi3mr_map_eedp_error - Map EEDP errors from IOC status |
3075 | * @scmd: SCSI command reference |
3076 | * @ioc_status: status of MPI3 request |
3077 | * |
3078 | * Maps the EEDP error status of the SCSI IO request to sense |
3079 | * data. |
3080 | * |
3081 | * Return: Nothing |
3082 | */ |
3083 | static void mpi3mr_map_eedp_error(struct scsi_cmnd *scmd, |
3084 | u16 ioc_status) |
3085 | { |
3086 | u8 ascq = 0; |
3087 | |
3088 | switch (ioc_status) { |
3089 | case MPI3_IOCSTATUS_EEDP_GUARD_ERROR: |
3090 | ascq = 0x01; |
3091 | break; |
3092 | case MPI3_IOCSTATUS_EEDP_APP_TAG_ERROR: |
3093 | ascq = 0x02; |
3094 | break; |
3095 | case MPI3_IOCSTATUS_EEDP_REF_TAG_ERROR: |
3096 | ascq = 0x03; |
3097 | break; |
3098 | default: |
3099 | ascq = 0x00; |
3100 | break; |
3101 | } |
3102 | |
3103 | mpi3mr_build_sense_buffer(desc: 0, buf: scmd->sense_buffer, ILLEGAL_REQUEST, |
3104 | asc: 0x10, ascq); |
3105 | scmd->result = (DID_ABORT << 16) | SAM_STAT_CHECK_CONDITION; |
3106 | } |
3107 | |
3108 | /** |
3109 | * mpi3mr_process_op_reply_desc - reply descriptor handler |
3110 | * @mrioc: Adapter instance reference |
3111 | * @reply_desc: Operational reply descriptor |
3112 | * @reply_dma: place holder for reply DMA address |
3113 | * @qidx: Operational queue index |
3114 | * |
3115 | * Process the operational reply descriptor and identifies the |
3116 | * descriptor type. Based on the descriptor map the MPI3 request |
3117 | * status to a SCSI command status and calls scsi_done call |
3118 | * back. |
3119 | * |
3120 | * Return: Nothing |
3121 | */ |
3122 | void mpi3mr_process_op_reply_desc(struct mpi3mr_ioc *mrioc, |
3123 | struct mpi3_default_reply_descriptor *reply_desc, u64 *reply_dma, u16 qidx) |
3124 | { |
3125 | u16 reply_desc_type, host_tag = 0; |
3126 | u16 ioc_status = MPI3_IOCSTATUS_SUCCESS; |
3127 | u32 ioc_loginfo = 0; |
3128 | struct mpi3_status_reply_descriptor *status_desc = NULL; |
3129 | struct mpi3_address_reply_descriptor *addr_desc = NULL; |
3130 | struct mpi3_success_reply_descriptor *success_desc = NULL; |
3131 | struct mpi3_scsi_io_reply *scsi_reply = NULL; |
3132 | struct scsi_cmnd *scmd = NULL; |
3133 | struct scmd_priv *priv = NULL; |
3134 | u8 *sense_buf = NULL; |
3135 | u8 scsi_state = 0, scsi_status = 0, sense_state = 0; |
3136 | u32 xfer_count = 0, sense_count = 0, resp_data = 0; |
3137 | u16 dev_handle = 0xFFFF; |
3138 | struct scsi_sense_hdr sshdr; |
3139 | struct mpi3mr_stgt_priv_data *stgt_priv_data = NULL; |
3140 | struct mpi3mr_sdev_priv_data *sdev_priv_data = NULL; |
3141 | u32 ioc_pend_data_len = 0, tg_pend_data_len = 0, data_len_blks = 0; |
3142 | struct mpi3mr_throttle_group_info *tg = NULL; |
3143 | u8 throttle_enabled_dev = 0; |
3144 | |
3145 | *reply_dma = 0; |
3146 | reply_desc_type = le16_to_cpu(reply_desc->reply_flags) & |
3147 | MPI3_REPLY_DESCRIPT_FLAGS_TYPE_MASK; |
3148 | switch (reply_desc_type) { |
3149 | case MPI3_REPLY_DESCRIPT_FLAGS_TYPE_STATUS: |
3150 | status_desc = (struct mpi3_status_reply_descriptor *)reply_desc; |
3151 | host_tag = le16_to_cpu(status_desc->host_tag); |
3152 | ioc_status = le16_to_cpu(status_desc->ioc_status); |
3153 | if (ioc_status & |
3154 | MPI3_REPLY_DESCRIPT_STATUS_IOCSTATUS_LOGINFOAVAIL) |
3155 | ioc_loginfo = le32_to_cpu(status_desc->ioc_log_info); |
3156 | ioc_status &= MPI3_REPLY_DESCRIPT_STATUS_IOCSTATUS_STATUS_MASK; |
3157 | break; |
3158 | case MPI3_REPLY_DESCRIPT_FLAGS_TYPE_ADDRESS_REPLY: |
3159 | addr_desc = (struct mpi3_address_reply_descriptor *)reply_desc; |
3160 | *reply_dma = le64_to_cpu(addr_desc->reply_frame_address); |
3161 | scsi_reply = mpi3mr_get_reply_virt_addr(mrioc, |
3162 | phys_addr: *reply_dma); |
3163 | if (!scsi_reply) { |
3164 | panic(fmt: "%s: scsi_reply is NULL, this shouldn't happen\n" , |
3165 | mrioc->name); |
3166 | goto out; |
3167 | } |
3168 | host_tag = le16_to_cpu(scsi_reply->host_tag); |
3169 | ioc_status = le16_to_cpu(scsi_reply->ioc_status); |
3170 | scsi_status = scsi_reply->scsi_status; |
3171 | scsi_state = scsi_reply->scsi_state; |
3172 | dev_handle = le16_to_cpu(scsi_reply->dev_handle); |
3173 | sense_state = (scsi_state & MPI3_SCSI_STATE_SENSE_MASK); |
3174 | xfer_count = le32_to_cpu(scsi_reply->transfer_count); |
3175 | sense_count = le32_to_cpu(scsi_reply->sense_count); |
3176 | resp_data = le32_to_cpu(scsi_reply->response_data); |
3177 | sense_buf = mpi3mr_get_sensebuf_virt_addr(mrioc, |
3178 | le64_to_cpu(scsi_reply->sense_data_buffer_address)); |
3179 | if (ioc_status & |
3180 | MPI3_REPLY_DESCRIPT_STATUS_IOCSTATUS_LOGINFOAVAIL) |
3181 | ioc_loginfo = le32_to_cpu(scsi_reply->ioc_log_info); |
3182 | ioc_status &= MPI3_REPLY_DESCRIPT_STATUS_IOCSTATUS_STATUS_MASK; |
3183 | if (sense_state == MPI3_SCSI_STATE_SENSE_BUFF_Q_EMPTY) |
3184 | panic(fmt: "%s: Ran out of sense buffers\n" , mrioc->name); |
3185 | break; |
3186 | case MPI3_REPLY_DESCRIPT_FLAGS_TYPE_SUCCESS: |
3187 | success_desc = (struct mpi3_success_reply_descriptor *)reply_desc; |
3188 | host_tag = le16_to_cpu(success_desc->host_tag); |
3189 | break; |
3190 | default: |
3191 | break; |
3192 | } |
3193 | scmd = mpi3mr_scmd_from_host_tag(mrioc, host_tag, qidx); |
3194 | if (!scmd) { |
3195 | panic(fmt: "%s: Cannot Identify scmd for host_tag 0x%x\n" , |
3196 | mrioc->name, host_tag); |
3197 | goto out; |
3198 | } |
3199 | priv = scsi_cmd_priv(cmd: scmd); |
3200 | |
3201 | data_len_blks = scsi_bufflen(cmd: scmd) >> 9; |
3202 | sdev_priv_data = scmd->device->hostdata; |
3203 | if (sdev_priv_data) { |
3204 | stgt_priv_data = sdev_priv_data->tgt_priv_data; |
3205 | if (stgt_priv_data) { |
3206 | tg = stgt_priv_data->throttle_group; |
3207 | throttle_enabled_dev = |
3208 | stgt_priv_data->io_throttle_enabled; |
3209 | dev_handle = stgt_priv_data->dev_handle; |
3210 | } |
3211 | } |
3212 | if (unlikely((data_len_blks >= mrioc->io_throttle_data_length) && |
3213 | throttle_enabled_dev)) { |
3214 | ioc_pend_data_len = atomic_sub_return(i: data_len_blks, |
3215 | v: &mrioc->pend_large_data_sz); |
3216 | if (tg) { |
3217 | tg_pend_data_len = atomic_sub_return(i: data_len_blks, |
3218 | v: &tg->pend_large_data_sz); |
3219 | if (tg->io_divert && ((ioc_pend_data_len <= |
3220 | mrioc->io_throttle_low) && |
3221 | (tg_pend_data_len <= tg->low))) { |
3222 | tg->io_divert = 0; |
3223 | mpi3mr_set_io_divert_for_all_vd_in_tg( |
3224 | mrioc, tg, divert_value: 0); |
3225 | } |
3226 | } else { |
3227 | if (ioc_pend_data_len <= mrioc->io_throttle_low) |
3228 | stgt_priv_data->io_divert = 0; |
3229 | } |
3230 | } else if (unlikely((stgt_priv_data && stgt_priv_data->io_divert))) { |
3231 | ioc_pend_data_len = atomic_read(v: &mrioc->pend_large_data_sz); |
3232 | if (!tg) { |
3233 | if (ioc_pend_data_len <= mrioc->io_throttle_low) |
3234 | stgt_priv_data->io_divert = 0; |
3235 | |
3236 | } else if (ioc_pend_data_len <= mrioc->io_throttle_low) { |
3237 | tg_pend_data_len = atomic_read(v: &tg->pend_large_data_sz); |
3238 | if (tg->io_divert && (tg_pend_data_len <= tg->low)) { |
3239 | tg->io_divert = 0; |
3240 | mpi3mr_set_io_divert_for_all_vd_in_tg( |
3241 | mrioc, tg, divert_value: 0); |
3242 | } |
3243 | } |
3244 | } |
3245 | |
3246 | if (success_desc) { |
3247 | scmd->result = DID_OK << 16; |
3248 | goto out_success; |
3249 | } |
3250 | |
3251 | scsi_set_resid(cmd: scmd, resid: scsi_bufflen(cmd: scmd) - xfer_count); |
3252 | if (ioc_status == MPI3_IOCSTATUS_SCSI_DATA_UNDERRUN && |
3253 | xfer_count == 0 && (scsi_status == MPI3_SCSI_STATUS_BUSY || |
3254 | scsi_status == MPI3_SCSI_STATUS_RESERVATION_CONFLICT || |
3255 | scsi_status == MPI3_SCSI_STATUS_TASK_SET_FULL)) |
3256 | ioc_status = MPI3_IOCSTATUS_SUCCESS; |
3257 | |
3258 | if ((sense_state == MPI3_SCSI_STATE_SENSE_VALID) && sense_count && |
3259 | sense_buf) { |
3260 | u32 sz = min_t(u32, SCSI_SENSE_BUFFERSIZE, sense_count); |
3261 | |
3262 | memcpy(scmd->sense_buffer, sense_buf, sz); |
3263 | } |
3264 | |
3265 | switch (ioc_status) { |
3266 | case MPI3_IOCSTATUS_BUSY: |
3267 | case MPI3_IOCSTATUS_INSUFFICIENT_RESOURCES: |
3268 | scmd->result = SAM_STAT_BUSY; |
3269 | break; |
3270 | case MPI3_IOCSTATUS_SCSI_DEVICE_NOT_THERE: |
3271 | scmd->result = DID_NO_CONNECT << 16; |
3272 | break; |
3273 | case MPI3_IOCSTATUS_SCSI_IOC_TERMINATED: |
3274 | scmd->result = DID_SOFT_ERROR << 16; |
3275 | break; |
3276 | case MPI3_IOCSTATUS_SCSI_TASK_TERMINATED: |
3277 | case MPI3_IOCSTATUS_SCSI_EXT_TERMINATED: |
3278 | scmd->result = DID_RESET << 16; |
3279 | break; |
3280 | case MPI3_IOCSTATUS_SCSI_RESIDUAL_MISMATCH: |
3281 | if ((xfer_count == 0) || (scmd->underflow > xfer_count)) |
3282 | scmd->result = DID_SOFT_ERROR << 16; |
3283 | else |
3284 | scmd->result = (DID_OK << 16) | scsi_status; |
3285 | break; |
3286 | case MPI3_IOCSTATUS_SCSI_DATA_UNDERRUN: |
3287 | scmd->result = (DID_OK << 16) | scsi_status; |
3288 | if (sense_state == MPI3_SCSI_STATE_SENSE_VALID) |
3289 | break; |
3290 | if (xfer_count < scmd->underflow) { |
3291 | if (scsi_status == SAM_STAT_BUSY) |
3292 | scmd->result = SAM_STAT_BUSY; |
3293 | else |
3294 | scmd->result = DID_SOFT_ERROR << 16; |
3295 | } else if ((scsi_state & (MPI3_SCSI_STATE_NO_SCSI_STATUS)) || |
3296 | (sense_state != MPI3_SCSI_STATE_SENSE_NOT_AVAILABLE)) |
3297 | scmd->result = DID_SOFT_ERROR << 16; |
3298 | else if (scsi_state & MPI3_SCSI_STATE_TERMINATED) |
3299 | scmd->result = DID_RESET << 16; |
3300 | break; |
3301 | case MPI3_IOCSTATUS_SCSI_DATA_OVERRUN: |
3302 | scsi_set_resid(cmd: scmd, resid: 0); |
3303 | fallthrough; |
3304 | case MPI3_IOCSTATUS_SCSI_RECOVERED_ERROR: |
3305 | case MPI3_IOCSTATUS_SUCCESS: |
3306 | scmd->result = (DID_OK << 16) | scsi_status; |
3307 | if ((scsi_state & (MPI3_SCSI_STATE_NO_SCSI_STATUS)) || |
3308 | (sense_state == MPI3_SCSI_STATE_SENSE_FAILED) || |
3309 | (sense_state == MPI3_SCSI_STATE_SENSE_BUFF_Q_EMPTY)) |
3310 | scmd->result = DID_SOFT_ERROR << 16; |
3311 | else if (scsi_state & MPI3_SCSI_STATE_TERMINATED) |
3312 | scmd->result = DID_RESET << 16; |
3313 | break; |
3314 | case MPI3_IOCSTATUS_EEDP_GUARD_ERROR: |
3315 | case MPI3_IOCSTATUS_EEDP_REF_TAG_ERROR: |
3316 | case MPI3_IOCSTATUS_EEDP_APP_TAG_ERROR: |
3317 | mpi3mr_map_eedp_error(scmd, ioc_status); |
3318 | break; |
3319 | case MPI3_IOCSTATUS_SCSI_PROTOCOL_ERROR: |
3320 | case MPI3_IOCSTATUS_INVALID_FUNCTION: |
3321 | case MPI3_IOCSTATUS_INVALID_SGL: |
3322 | case MPI3_IOCSTATUS_INTERNAL_ERROR: |
3323 | case MPI3_IOCSTATUS_INVALID_FIELD: |
3324 | case MPI3_IOCSTATUS_INVALID_STATE: |
3325 | case MPI3_IOCSTATUS_SCSI_IO_DATA_ERROR: |
3326 | case MPI3_IOCSTATUS_SCSI_TASK_MGMT_FAILED: |
3327 | case MPI3_IOCSTATUS_INSUFFICIENT_POWER: |
3328 | default: |
3329 | scmd->result = DID_SOFT_ERROR << 16; |
3330 | break; |
3331 | } |
3332 | |
3333 | if (scmd->result != (DID_OK << 16) && (scmd->cmnd[0] != ATA_12) && |
3334 | (scmd->cmnd[0] != ATA_16) && |
3335 | mrioc->logging_level & MPI3_DEBUG_SCSI_ERROR) { |
3336 | ioc_info(mrioc, "%s :scmd->result 0x%x\n" , __func__, |
3337 | scmd->result); |
3338 | scsi_print_command(scmd); |
3339 | ioc_info(mrioc, |
3340 | "%s :Command issued to handle 0x%02x returned with error 0x%04x loginfo 0x%08x, qid %d\n" , |
3341 | __func__, dev_handle, ioc_status, ioc_loginfo, |
3342 | priv->req_q_idx + 1); |
3343 | ioc_info(mrioc, |
3344 | " host_tag %d scsi_state 0x%02x scsi_status 0x%02x, xfer_cnt %d resp_data 0x%x\n" , |
3345 | host_tag, scsi_state, scsi_status, xfer_count, resp_data); |
3346 | if (sense_buf) { |
3347 | scsi_normalize_sense(sense_buffer: sense_buf, sb_len: sense_count, sshdr: &sshdr); |
3348 | ioc_info(mrioc, |
3349 | "%s :sense_count 0x%x, sense_key 0x%x ASC 0x%x, ASCQ 0x%x\n" , |
3350 | __func__, sense_count, sshdr.sense_key, |
3351 | sshdr.asc, sshdr.ascq); |
3352 | } |
3353 | } |
3354 | out_success: |
3355 | if (priv->meta_sg_valid) { |
3356 | dma_unmap_sg(&mrioc->pdev->dev, scsi_prot_sglist(scmd), |
3357 | scsi_prot_sg_count(scmd), scmd->sc_data_direction); |
3358 | } |
3359 | mpi3mr_clear_scmd_priv(mrioc, scmd); |
3360 | scsi_dma_unmap(cmd: scmd); |
3361 | scsi_done(cmd: scmd); |
3362 | out: |
3363 | if (sense_buf) |
3364 | mpi3mr_repost_sense_buf(mrioc, |
3365 | le64_to_cpu(scsi_reply->sense_data_buffer_address)); |
3366 | } |
3367 | |
3368 | /** |
3369 | * mpi3mr_get_chain_idx - get free chain buffer index |
3370 | * @mrioc: Adapter instance reference |
3371 | * |
3372 | * Try to get a free chain buffer index from the free pool. |
3373 | * |
3374 | * Return: -1 on failure or the free chain buffer index |
3375 | */ |
3376 | static int mpi3mr_get_chain_idx(struct mpi3mr_ioc *mrioc) |
3377 | { |
3378 | u8 retry_count = 5; |
3379 | int cmd_idx = -1; |
3380 | unsigned long flags; |
3381 | |
3382 | spin_lock_irqsave(&mrioc->chain_buf_lock, flags); |
3383 | do { |
3384 | cmd_idx = find_first_zero_bit(addr: mrioc->chain_bitmap, |
3385 | size: mrioc->chain_buf_count); |
3386 | if (cmd_idx < mrioc->chain_buf_count) { |
3387 | set_bit(nr: cmd_idx, addr: mrioc->chain_bitmap); |
3388 | break; |
3389 | } |
3390 | cmd_idx = -1; |
3391 | } while (retry_count--); |
3392 | spin_unlock_irqrestore(lock: &mrioc->chain_buf_lock, flags); |
3393 | return cmd_idx; |
3394 | } |
3395 | |
3396 | /** |
3397 | * mpi3mr_prepare_sg_scmd - build scatter gather list |
3398 | * @mrioc: Adapter instance reference |
3399 | * @scmd: SCSI command reference |
3400 | * @scsiio_req: MPI3 SCSI IO request |
3401 | * |
3402 | * This function maps SCSI command's data and protection SGEs to |
3403 | * MPI request SGEs. If required additional 4K chain buffer is |
3404 | * used to send the SGEs. |
3405 | * |
3406 | * Return: 0 on success, -ENOMEM on dma_map_sg failure |
3407 | */ |
3408 | static int mpi3mr_prepare_sg_scmd(struct mpi3mr_ioc *mrioc, |
3409 | struct scsi_cmnd *scmd, struct mpi3_scsi_io_request *scsiio_req) |
3410 | { |
3411 | dma_addr_t chain_dma; |
3412 | struct scatterlist *sg_scmd; |
3413 | void *sg_local, *chain; |
3414 | u32 chain_length; |
3415 | int sges_left, chain_idx; |
3416 | u32 sges_in_segment; |
3417 | u8 simple_sgl_flags; |
3418 | u8 simple_sgl_flags_last; |
3419 | u8 last_chain_sgl_flags; |
3420 | struct chain_element *chain_req; |
3421 | struct scmd_priv *priv = NULL; |
3422 | u32 meta_sg = le32_to_cpu(scsiio_req->flags) & |
3423 | MPI3_SCSIIO_FLAGS_DMAOPERATION_HOST_PI; |
3424 | |
3425 | priv = scsi_cmd_priv(cmd: scmd); |
3426 | |
3427 | simple_sgl_flags = MPI3_SGE_FLAGS_ELEMENT_TYPE_SIMPLE | |
3428 | MPI3_SGE_FLAGS_DLAS_SYSTEM; |
3429 | simple_sgl_flags_last = simple_sgl_flags | |
3430 | MPI3_SGE_FLAGS_END_OF_LIST; |
3431 | last_chain_sgl_flags = MPI3_SGE_FLAGS_ELEMENT_TYPE_LAST_CHAIN | |
3432 | MPI3_SGE_FLAGS_DLAS_SYSTEM; |
3433 | |
3434 | if (meta_sg) |
3435 | sg_local = &scsiio_req->sgl[MPI3_SCSIIO_METASGL_INDEX]; |
3436 | else |
3437 | sg_local = &scsiio_req->sgl; |
3438 | |
3439 | if (!scsiio_req->data_length && !meta_sg) { |
3440 | mpi3mr_build_zero_len_sge(paddr: sg_local); |
3441 | return 0; |
3442 | } |
3443 | |
3444 | if (meta_sg) { |
3445 | sg_scmd = scsi_prot_sglist(cmd: scmd); |
3446 | sges_left = dma_map_sg(&mrioc->pdev->dev, |
3447 | scsi_prot_sglist(scmd), |
3448 | scsi_prot_sg_count(scmd), |
3449 | scmd->sc_data_direction); |
3450 | priv->meta_sg_valid = 1; /* To unmap meta sg DMA */ |
3451 | } else { |
3452 | sg_scmd = scsi_sglist(cmd: scmd); |
3453 | sges_left = scsi_dma_map(cmd: scmd); |
3454 | } |
3455 | |
3456 | if (sges_left < 0) { |
3457 | sdev_printk(KERN_ERR, scmd->device, |
3458 | "scsi_dma_map failed: request for %d bytes!\n" , |
3459 | scsi_bufflen(scmd)); |
3460 | return -ENOMEM; |
3461 | } |
3462 | if (sges_left > mrioc->max_sgl_entries) { |
3463 | sdev_printk(KERN_ERR, scmd->device, |
3464 | "scsi_dma_map returned unsupported sge count %d!\n" , |
3465 | sges_left); |
3466 | return -ENOMEM; |
3467 | } |
3468 | |
3469 | sges_in_segment = (mrioc->facts.op_req_sz - |
3470 | offsetof(struct mpi3_scsi_io_request, sgl)) / sizeof(struct mpi3_sge_common); |
3471 | |
3472 | if (scsiio_req->sgl[0].eedp.flags == |
3473 | MPI3_SGE_FLAGS_ELEMENT_TYPE_EXTENDED && !meta_sg) { |
3474 | sg_local += sizeof(struct mpi3_sge_common); |
3475 | sges_in_segment--; |
3476 | /* Reserve 1st segment (scsiio_req->sgl[0]) for eedp */ |
3477 | } |
3478 | |
3479 | if (scsiio_req->msg_flags == |
3480 | MPI3_SCSIIO_MSGFLAGS_METASGL_VALID && !meta_sg) { |
3481 | sges_in_segment--; |
3482 | /* Reserve last segment (scsiio_req->sgl[3]) for meta sg */ |
3483 | } |
3484 | |
3485 | if (meta_sg) |
3486 | sges_in_segment = 1; |
3487 | |
3488 | if (sges_left <= sges_in_segment) |
3489 | goto fill_in_last_segment; |
3490 | |
3491 | /* fill in main message segment when there is a chain following */ |
3492 | while (sges_in_segment > 1) { |
3493 | mpi3mr_add_sg_single(paddr: sg_local, flags: simple_sgl_flags, |
3494 | sg_dma_len(sg_scmd), sg_dma_address(sg_scmd)); |
3495 | sg_scmd = sg_next(sg_scmd); |
3496 | sg_local += sizeof(struct mpi3_sge_common); |
3497 | sges_left--; |
3498 | sges_in_segment--; |
3499 | } |
3500 | |
3501 | chain_idx = mpi3mr_get_chain_idx(mrioc); |
3502 | if (chain_idx < 0) |
3503 | return -1; |
3504 | chain_req = &mrioc->chain_sgl_list[chain_idx]; |
3505 | if (meta_sg) |
3506 | priv->meta_chain_idx = chain_idx; |
3507 | else |
3508 | priv->chain_idx = chain_idx; |
3509 | |
3510 | chain = chain_req->addr; |
3511 | chain_dma = chain_req->dma_addr; |
3512 | sges_in_segment = sges_left; |
3513 | chain_length = sges_in_segment * sizeof(struct mpi3_sge_common); |
3514 | |
3515 | mpi3mr_add_sg_single(paddr: sg_local, flags: last_chain_sgl_flags, |
3516 | length: chain_length, dma_addr: chain_dma); |
3517 | |
3518 | sg_local = chain; |
3519 | |
3520 | fill_in_last_segment: |
3521 | while (sges_left > 0) { |
3522 | if (sges_left == 1) |
3523 | mpi3mr_add_sg_single(paddr: sg_local, |
3524 | flags: simple_sgl_flags_last, sg_dma_len(sg_scmd), |
3525 | sg_dma_address(sg_scmd)); |
3526 | else |
3527 | mpi3mr_add_sg_single(paddr: sg_local, flags: simple_sgl_flags, |
3528 | sg_dma_len(sg_scmd), sg_dma_address(sg_scmd)); |
3529 | sg_scmd = sg_next(sg_scmd); |
3530 | sg_local += sizeof(struct mpi3_sge_common); |
3531 | sges_left--; |
3532 | } |
3533 | |
3534 | return 0; |
3535 | } |
3536 | |
3537 | /** |
3538 | * mpi3mr_build_sg_scmd - build scatter gather list for SCSI IO |
3539 | * @mrioc: Adapter instance reference |
3540 | * @scmd: SCSI command reference |
3541 | * @scsiio_req: MPI3 SCSI IO request |
3542 | * |
3543 | * This function calls mpi3mr_prepare_sg_scmd for constructing |
3544 | * both data SGEs and protection information SGEs in the MPI |
3545 | * format from the SCSI Command as appropriate . |
3546 | * |
3547 | * Return: return value of mpi3mr_prepare_sg_scmd. |
3548 | */ |
3549 | static int mpi3mr_build_sg_scmd(struct mpi3mr_ioc *mrioc, |
3550 | struct scsi_cmnd *scmd, struct mpi3_scsi_io_request *scsiio_req) |
3551 | { |
3552 | int ret; |
3553 | |
3554 | ret = mpi3mr_prepare_sg_scmd(mrioc, scmd, scsiio_req); |
3555 | if (ret) |
3556 | return ret; |
3557 | |
3558 | if (scsiio_req->msg_flags == MPI3_SCSIIO_MSGFLAGS_METASGL_VALID) { |
3559 | /* There is a valid meta sg */ |
3560 | scsiio_req->flags |= |
3561 | cpu_to_le32(MPI3_SCSIIO_FLAGS_DMAOPERATION_HOST_PI); |
3562 | ret = mpi3mr_prepare_sg_scmd(mrioc, scmd, scsiio_req); |
3563 | } |
3564 | |
3565 | return ret; |
3566 | } |
3567 | |
3568 | /** |
3569 | * mpi3mr_tm_response_name - get TM response as a string |
3570 | * @resp_code: TM response code |
3571 | * |
3572 | * Convert known task management response code as a readable |
3573 | * string. |
3574 | * |
3575 | * Return: response code string. |
3576 | */ |
3577 | static const char *mpi3mr_tm_response_name(u8 resp_code) |
3578 | { |
3579 | char *desc; |
3580 | |
3581 | switch (resp_code) { |
3582 | case MPI3_SCSITASKMGMT_RSPCODE_TM_COMPLETE: |
3583 | desc = "task management request completed" ; |
3584 | break; |
3585 | case MPI3_SCSITASKMGMT_RSPCODE_INVALID_FRAME: |
3586 | desc = "invalid frame" ; |
3587 | break; |
3588 | case MPI3_SCSITASKMGMT_RSPCODE_TM_FUNCTION_NOT_SUPPORTED: |
3589 | desc = "task management request not supported" ; |
3590 | break; |
3591 | case MPI3_SCSITASKMGMT_RSPCODE_TM_FAILED: |
3592 | desc = "task management request failed" ; |
3593 | break; |
3594 | case MPI3_SCSITASKMGMT_RSPCODE_TM_SUCCEEDED: |
3595 | desc = "task management request succeeded" ; |
3596 | break; |
3597 | case MPI3_SCSITASKMGMT_RSPCODE_TM_INVALID_LUN: |
3598 | desc = "invalid LUN" ; |
3599 | break; |
3600 | case MPI3_SCSITASKMGMT_RSPCODE_TM_OVERLAPPED_TAG: |
3601 | desc = "overlapped tag attempted" ; |
3602 | break; |
3603 | case MPI3_SCSITASKMGMT_RSPCODE_IO_QUEUED_ON_IOC: |
3604 | desc = "task queued, however not sent to target" ; |
3605 | break; |
3606 | case MPI3_SCSITASKMGMT_RSPCODE_TM_NVME_DENIED: |
3607 | desc = "task management request denied by NVMe device" ; |
3608 | break; |
3609 | default: |
3610 | desc = "unknown" ; |
3611 | break; |
3612 | } |
3613 | |
3614 | return desc; |
3615 | } |
3616 | |
3617 | inline void mpi3mr_poll_pend_io_completions(struct mpi3mr_ioc *mrioc) |
3618 | { |
3619 | int i; |
3620 | int num_of_reply_queues = |
3621 | mrioc->num_op_reply_q + mrioc->op_reply_q_offset; |
3622 | |
3623 | for (i = mrioc->op_reply_q_offset; i < num_of_reply_queues; i++) |
3624 | mpi3mr_process_op_reply_q(mrioc, |
3625 | op_reply_q: mrioc->intr_info[i].op_reply_q); |
3626 | } |
3627 | |
3628 | /** |
3629 | * mpi3mr_issue_tm - Issue Task Management request |
3630 | * @mrioc: Adapter instance reference |
3631 | * @tm_type: Task Management type |
3632 | * @handle: Device handle |
3633 | * @lun: lun ID |
3634 | * @htag: Host tag of the TM request |
3635 | * @timeout: TM timeout value |
3636 | * @drv_cmd: Internal command tracker |
3637 | * @resp_code: Response code place holder |
3638 | * @scmd: SCSI command |
3639 | * |
3640 | * Issues a Task Management Request to the controller for a |
3641 | * specified target, lun and command and wait for its completion |
3642 | * and check TM response. Recover the TM if it timed out by |
3643 | * issuing controller reset. |
3644 | * |
3645 | * Return: 0 on success, non-zero on errors |
3646 | */ |
3647 | int mpi3mr_issue_tm(struct mpi3mr_ioc *mrioc, u8 tm_type, |
3648 | u16 handle, uint lun, u16 htag, ulong timeout, |
3649 | struct mpi3mr_drv_cmd *drv_cmd, |
3650 | u8 *resp_code, struct scsi_cmnd *scmd) |
3651 | { |
3652 | struct mpi3_scsi_task_mgmt_request tm_req; |
3653 | struct mpi3_scsi_task_mgmt_reply *tm_reply = NULL; |
3654 | int retval = 0; |
3655 | struct mpi3mr_tgt_dev *tgtdev = NULL; |
3656 | struct mpi3mr_stgt_priv_data *scsi_tgt_priv_data = NULL; |
3657 | struct scmd_priv *cmd_priv = NULL; |
3658 | struct scsi_device *sdev = NULL; |
3659 | struct mpi3mr_sdev_priv_data *sdev_priv_data = NULL; |
3660 | |
3661 | ioc_info(mrioc, "%s :Issue TM: TM type (0x%x) for devhandle 0x%04x\n" , |
3662 | __func__, tm_type, handle); |
3663 | if (mrioc->unrecoverable) { |
3664 | retval = -1; |
3665 | ioc_err(mrioc, "%s :Issue TM: Unrecoverable controller\n" , |
3666 | __func__); |
3667 | goto out; |
3668 | } |
3669 | |
3670 | memset(&tm_req, 0, sizeof(tm_req)); |
3671 | mutex_lock(&drv_cmd->mutex); |
3672 | if (drv_cmd->state & MPI3MR_CMD_PENDING) { |
3673 | retval = -1; |
3674 | ioc_err(mrioc, "%s :Issue TM: Command is in use\n" , __func__); |
3675 | mutex_unlock(lock: &drv_cmd->mutex); |
3676 | goto out; |
3677 | } |
3678 | if (mrioc->reset_in_progress) { |
3679 | retval = -1; |
3680 | ioc_err(mrioc, "%s :Issue TM: Reset in progress\n" , __func__); |
3681 | mutex_unlock(lock: &drv_cmd->mutex); |
3682 | goto out; |
3683 | } |
3684 | |
3685 | drv_cmd->state = MPI3MR_CMD_PENDING; |
3686 | drv_cmd->is_waiting = 1; |
3687 | drv_cmd->callback = NULL; |
3688 | tm_req.dev_handle = cpu_to_le16(handle); |
3689 | tm_req.task_type = tm_type; |
3690 | tm_req.host_tag = cpu_to_le16(htag); |
3691 | |
3692 | int_to_scsilun(lun, (struct scsi_lun *)tm_req.lun); |
3693 | tm_req.function = MPI3_FUNCTION_SCSI_TASK_MGMT; |
3694 | |
3695 | tgtdev = mpi3mr_get_tgtdev_by_handle(mrioc, handle); |
3696 | |
3697 | if (scmd) { |
3698 | sdev = scmd->device; |
3699 | sdev_priv_data = sdev->hostdata; |
3700 | scsi_tgt_priv_data = ((sdev_priv_data) ? |
3701 | sdev_priv_data->tgt_priv_data : NULL); |
3702 | } else { |
3703 | if (tgtdev && tgtdev->starget && tgtdev->starget->hostdata) |
3704 | scsi_tgt_priv_data = (struct mpi3mr_stgt_priv_data *) |
3705 | tgtdev->starget->hostdata; |
3706 | } |
3707 | |
3708 | if (scsi_tgt_priv_data) |
3709 | atomic_inc(v: &scsi_tgt_priv_data->block_io); |
3710 | |
3711 | if (tgtdev && (tgtdev->dev_type == MPI3_DEVICE_DEVFORM_PCIE)) { |
3712 | if (cmd_priv && tgtdev->dev_spec.pcie_inf.abort_to) |
3713 | timeout = tgtdev->dev_spec.pcie_inf.abort_to; |
3714 | else if (!cmd_priv && tgtdev->dev_spec.pcie_inf.reset_to) |
3715 | timeout = tgtdev->dev_spec.pcie_inf.reset_to; |
3716 | } |
3717 | |
3718 | init_completion(x: &drv_cmd->done); |
3719 | retval = mpi3mr_admin_request_post(mrioc, admin_req: &tm_req, admin_req_sz: sizeof(tm_req), ignore_reset: 1); |
3720 | if (retval) { |
3721 | ioc_err(mrioc, "%s :Issue TM: Admin Post failed\n" , __func__); |
3722 | goto out_unlock; |
3723 | } |
3724 | wait_for_completion_timeout(x: &drv_cmd->done, timeout: (timeout * HZ)); |
3725 | |
3726 | if (!(drv_cmd->state & MPI3MR_CMD_COMPLETE)) { |
3727 | drv_cmd->is_waiting = 0; |
3728 | retval = -1; |
3729 | if (!(drv_cmd->state & MPI3MR_CMD_RESET)) { |
3730 | dprint_tm(mrioc, |
3731 | "task management request timed out after %ld seconds\n" , |
3732 | timeout); |
3733 | if (mrioc->logging_level & MPI3_DEBUG_TM) |
3734 | dprint_dump_req(req: &tm_req, sz: sizeof(tm_req)/4); |
3735 | mpi3mr_soft_reset_handler(mrioc, |
3736 | reset_reason: MPI3MR_RESET_FROM_TM_TIMEOUT, snapdump: 1); |
3737 | } |
3738 | goto out_unlock; |
3739 | } |
3740 | |
3741 | if (!(drv_cmd->state & MPI3MR_CMD_REPLY_VALID)) { |
3742 | dprint_tm(mrioc, "invalid task management reply message\n" ); |
3743 | retval = -1; |
3744 | goto out_unlock; |
3745 | } |
3746 | |
3747 | tm_reply = (struct mpi3_scsi_task_mgmt_reply *)drv_cmd->reply; |
3748 | |
3749 | switch (drv_cmd->ioc_status) { |
3750 | case MPI3_IOCSTATUS_SUCCESS: |
3751 | *resp_code = le32_to_cpu(tm_reply->response_data) & |
3752 | MPI3MR_RI_MASK_RESPCODE; |
3753 | break; |
3754 | case MPI3_IOCSTATUS_SCSI_IOC_TERMINATED: |
3755 | *resp_code = MPI3_SCSITASKMGMT_RSPCODE_TM_COMPLETE; |
3756 | break; |
3757 | default: |
3758 | dprint_tm(mrioc, |
3759 | "task management request to handle(0x%04x) is failed with ioc_status(0x%04x) log_info(0x%08x)\n" , |
3760 | handle, drv_cmd->ioc_status, drv_cmd->ioc_loginfo); |
3761 | retval = -1; |
3762 | goto out_unlock; |
3763 | } |
3764 | |
3765 | switch (*resp_code) { |
3766 | case MPI3_SCSITASKMGMT_RSPCODE_TM_SUCCEEDED: |
3767 | case MPI3_SCSITASKMGMT_RSPCODE_TM_COMPLETE: |
3768 | break; |
3769 | case MPI3_SCSITASKMGMT_RSPCODE_IO_QUEUED_ON_IOC: |
3770 | if (tm_type != MPI3_SCSITASKMGMT_TASKTYPE_QUERY_TASK) |
3771 | retval = -1; |
3772 | break; |
3773 | default: |
3774 | retval = -1; |
3775 | break; |
3776 | } |
3777 | |
3778 | dprint_tm(mrioc, |
3779 | "task management request type(%d) completed for handle(0x%04x) with ioc_status(0x%04x), log_info(0x%08x), termination_count(%d), response:%s(0x%x)\n" , |
3780 | tm_type, handle, drv_cmd->ioc_status, drv_cmd->ioc_loginfo, |
3781 | le32_to_cpu(tm_reply->termination_count), |
3782 | mpi3mr_tm_response_name(*resp_code), *resp_code); |
3783 | |
3784 | if (!retval) { |
3785 | mpi3mr_ioc_disable_intr(mrioc); |
3786 | mpi3mr_poll_pend_io_completions(mrioc); |
3787 | mpi3mr_ioc_enable_intr(mrioc); |
3788 | mpi3mr_poll_pend_io_completions(mrioc); |
3789 | mpi3mr_process_admin_reply_q(mrioc); |
3790 | } |
3791 | switch (tm_type) { |
3792 | case MPI3_SCSITASKMGMT_TASKTYPE_TARGET_RESET: |
3793 | if (!scsi_tgt_priv_data) |
3794 | break; |
3795 | scsi_tgt_priv_data->pend_count = 0; |
3796 | blk_mq_tagset_busy_iter(tagset: &mrioc->shost->tag_set, |
3797 | fn: mpi3mr_count_tgt_pending, |
3798 | priv: (void *)scsi_tgt_priv_data->starget); |
3799 | break; |
3800 | case MPI3_SCSITASKMGMT_TASKTYPE_LOGICAL_UNIT_RESET: |
3801 | if (!sdev_priv_data) |
3802 | break; |
3803 | sdev_priv_data->pend_count = 0; |
3804 | blk_mq_tagset_busy_iter(tagset: &mrioc->shost->tag_set, |
3805 | fn: mpi3mr_count_dev_pending, priv: (void *)sdev); |
3806 | break; |
3807 | default: |
3808 | break; |
3809 | } |
3810 | |
3811 | out_unlock: |
3812 | drv_cmd->state = MPI3MR_CMD_NOTUSED; |
3813 | mutex_unlock(lock: &drv_cmd->mutex); |
3814 | if (scsi_tgt_priv_data) |
3815 | atomic_dec_if_positive(v: &scsi_tgt_priv_data->block_io); |
3816 | if (tgtdev) |
3817 | mpi3mr_tgtdev_put(s: tgtdev); |
3818 | out: |
3819 | return retval; |
3820 | } |
3821 | |
3822 | /** |
3823 | * mpi3mr_bios_param - BIOS param callback |
3824 | * @sdev: SCSI device reference |
3825 | * @bdev: Block device reference |
3826 | * @capacity: Capacity in logical sectors |
3827 | * @params: Parameter array |
3828 | * |
3829 | * Just the parameters with heads/secots/cylinders. |
3830 | * |
3831 | * Return: 0 always |
3832 | */ |
3833 | static int mpi3mr_bios_param(struct scsi_device *sdev, |
3834 | struct block_device *bdev, sector_t capacity, int params[]) |
3835 | { |
3836 | int heads; |
3837 | int sectors; |
3838 | sector_t cylinders; |
3839 | ulong dummy; |
3840 | |
3841 | heads = 64; |
3842 | sectors = 32; |
3843 | |
3844 | dummy = heads * sectors; |
3845 | cylinders = capacity; |
3846 | sector_div(cylinders, dummy); |
3847 | |
3848 | if ((ulong)capacity >= 0x200000) { |
3849 | heads = 255; |
3850 | sectors = 63; |
3851 | dummy = heads * sectors; |
3852 | cylinders = capacity; |
3853 | sector_div(cylinders, dummy); |
3854 | } |
3855 | |
3856 | params[0] = heads; |
3857 | params[1] = sectors; |
3858 | params[2] = cylinders; |
3859 | return 0; |
3860 | } |
3861 | |
3862 | /** |
3863 | * mpi3mr_map_queues - Map queues callback handler |
3864 | * @shost: SCSI host reference |
3865 | * |
3866 | * Maps default and poll queues. |
3867 | * |
3868 | * Return: return zero. |
3869 | */ |
3870 | static void mpi3mr_map_queues(struct Scsi_Host *shost) |
3871 | { |
3872 | struct mpi3mr_ioc *mrioc = shost_priv(shost); |
3873 | int i, qoff, offset; |
3874 | struct blk_mq_queue_map *map = NULL; |
3875 | |
3876 | offset = mrioc->op_reply_q_offset; |
3877 | |
3878 | for (i = 0, qoff = 0; i < HCTX_MAX_TYPES; i++) { |
3879 | map = &shost->tag_set.map[i]; |
3880 | |
3881 | map->nr_queues = 0; |
3882 | |
3883 | if (i == HCTX_TYPE_DEFAULT) |
3884 | map->nr_queues = mrioc->default_qcount; |
3885 | else if (i == HCTX_TYPE_POLL) |
3886 | map->nr_queues = mrioc->active_poll_qcount; |
3887 | |
3888 | if (!map->nr_queues) { |
3889 | BUG_ON(i == HCTX_TYPE_DEFAULT); |
3890 | continue; |
3891 | } |
3892 | |
3893 | /* |
3894 | * The poll queue(s) doesn't have an IRQ (and hence IRQ |
3895 | * affinity), so use the regular blk-mq cpu mapping |
3896 | */ |
3897 | map->queue_offset = qoff; |
3898 | if (i != HCTX_TYPE_POLL) |
3899 | blk_mq_pci_map_queues(qmap: map, pdev: mrioc->pdev, offset); |
3900 | else |
3901 | blk_mq_map_queues(qmap: map); |
3902 | |
3903 | qoff += map->nr_queues; |
3904 | offset += map->nr_queues; |
3905 | } |
3906 | } |
3907 | |
3908 | /** |
3909 | * mpi3mr_get_fw_pending_ios - Calculate pending I/O count |
3910 | * @mrioc: Adapter instance reference |
3911 | * |
3912 | * Calculate the pending I/Os for the controller and return. |
3913 | * |
3914 | * Return: Number of pending I/Os |
3915 | */ |
3916 | static inline int mpi3mr_get_fw_pending_ios(struct mpi3mr_ioc *mrioc) |
3917 | { |
3918 | u16 i; |
3919 | uint pend_ios = 0; |
3920 | |
3921 | for (i = 0; i < mrioc->num_op_reply_q; i++) |
3922 | pend_ios += atomic_read(v: &mrioc->op_reply_qinfo[i].pend_ios); |
3923 | return pend_ios; |
3924 | } |
3925 | |
3926 | /** |
3927 | * mpi3mr_print_pending_host_io - print pending I/Os |
3928 | * @mrioc: Adapter instance reference |
3929 | * |
3930 | * Print number of pending I/Os and each I/O details prior to |
3931 | * reset for debug purpose. |
3932 | * |
3933 | * Return: Nothing |
3934 | */ |
3935 | static void mpi3mr_print_pending_host_io(struct mpi3mr_ioc *mrioc) |
3936 | { |
3937 | struct Scsi_Host *shost = mrioc->shost; |
3938 | |
3939 | ioc_info(mrioc, "%s :Pending commands prior to reset: %d\n" , |
3940 | __func__, mpi3mr_get_fw_pending_ios(mrioc)); |
3941 | blk_mq_tagset_busy_iter(tagset: &shost->tag_set, |
3942 | fn: mpi3mr_print_scmd, priv: (void *)mrioc); |
3943 | } |
3944 | |
3945 | /** |
3946 | * mpi3mr_wait_for_host_io - block for I/Os to complete |
3947 | * @mrioc: Adapter instance reference |
3948 | * @timeout: time out in seconds |
3949 | * Waits for pending I/Os for the given adapter to complete or |
3950 | * to hit the timeout. |
3951 | * |
3952 | * Return: Nothing |
3953 | */ |
3954 | void mpi3mr_wait_for_host_io(struct mpi3mr_ioc *mrioc, u32 timeout) |
3955 | { |
3956 | enum mpi3mr_iocstate iocstate; |
3957 | int i = 0; |
3958 | |
3959 | iocstate = mpi3mr_get_iocstate(mrioc); |
3960 | if (iocstate != MRIOC_STATE_READY) |
3961 | return; |
3962 | |
3963 | if (!mpi3mr_get_fw_pending_ios(mrioc)) |
3964 | return; |
3965 | ioc_info(mrioc, |
3966 | "%s :Waiting for %d seconds prior to reset for %d I/O\n" , |
3967 | __func__, timeout, mpi3mr_get_fw_pending_ios(mrioc)); |
3968 | |
3969 | for (i = 0; i < timeout; i++) { |
3970 | if (!mpi3mr_get_fw_pending_ios(mrioc)) |
3971 | break; |
3972 | iocstate = mpi3mr_get_iocstate(mrioc); |
3973 | if (iocstate != MRIOC_STATE_READY) |
3974 | break; |
3975 | msleep(msecs: 1000); |
3976 | } |
3977 | |
3978 | ioc_info(mrioc, "%s :Pending I/Os after wait is: %d\n" , __func__, |
3979 | mpi3mr_get_fw_pending_ios(mrioc)); |
3980 | } |
3981 | |
3982 | /** |
3983 | * mpi3mr_setup_divert_ws - Setup Divert IO flag for write same |
3984 | * @mrioc: Adapter instance reference |
3985 | * @scmd: SCSI command reference |
3986 | * @scsiio_req: MPI3 SCSI IO request |
3987 | * @scsiio_flags: Pointer to MPI3 SCSI IO Flags |
3988 | * @wslen: write same max length |
3989 | * |
3990 | * Gets values of unmap, ndob and number of blocks from write |
3991 | * same scsi io and based on these values it sets divert IO flag |
3992 | * and reason for diverting IO to firmware. |
3993 | * |
3994 | * Return: Nothing |
3995 | */ |
3996 | static inline void mpi3mr_setup_divert_ws(struct mpi3mr_ioc *mrioc, |
3997 | struct scsi_cmnd *scmd, struct mpi3_scsi_io_request *scsiio_req, |
3998 | u32 *scsiio_flags, u16 wslen) |
3999 | { |
4000 | u8 unmap = 0, ndob = 0; |
4001 | u8 opcode = scmd->cmnd[0]; |
4002 | u32 num_blocks = 0; |
4003 | u16 sa = (scmd->cmnd[8] << 8) | (scmd->cmnd[9]); |
4004 | |
4005 | if (opcode == WRITE_SAME_16) { |
4006 | unmap = scmd->cmnd[1] & 0x08; |
4007 | ndob = scmd->cmnd[1] & 0x01; |
4008 | num_blocks = get_unaligned_be32(p: scmd->cmnd + 10); |
4009 | } else if ((opcode == VARIABLE_LENGTH_CMD) && (sa == WRITE_SAME_32)) { |
4010 | unmap = scmd->cmnd[10] & 0x08; |
4011 | ndob = scmd->cmnd[10] & 0x01; |
4012 | num_blocks = get_unaligned_be32(p: scmd->cmnd + 28); |
4013 | } else |
4014 | return; |
4015 | |
4016 | if ((unmap) && (ndob) && (num_blocks > wslen)) { |
4017 | scsiio_req->msg_flags |= |
4018 | MPI3_SCSIIO_MSGFLAGS_DIVERT_TO_FIRMWARE; |
4019 | *scsiio_flags |= |
4020 | MPI3_SCSIIO_FLAGS_DIVERT_REASON_WRITE_SAME_TOO_LARGE; |
4021 | } |
4022 | } |
4023 | |
4024 | /** |
4025 | * mpi3mr_eh_host_reset - Host reset error handling callback |
4026 | * @scmd: SCSI command reference |
4027 | * |
4028 | * Issue controller reset |
4029 | * |
4030 | * Return: SUCCESS of successful reset else FAILED |
4031 | */ |
4032 | static int mpi3mr_eh_host_reset(struct scsi_cmnd *scmd) |
4033 | { |
4034 | struct mpi3mr_ioc *mrioc = shost_priv(shost: scmd->device->host); |
4035 | int retval = FAILED, ret; |
4036 | |
4037 | ret = mpi3mr_soft_reset_handler(mrioc, |
4038 | reset_reason: MPI3MR_RESET_FROM_EH_HOS, snapdump: 1); |
4039 | if (ret) |
4040 | goto out; |
4041 | |
4042 | retval = SUCCESS; |
4043 | out: |
4044 | sdev_printk(KERN_INFO, scmd->device, |
4045 | "Host reset is %s for scmd(%p)\n" , |
4046 | ((retval == SUCCESS) ? "SUCCESS" : "FAILED" ), scmd); |
4047 | |
4048 | return retval; |
4049 | } |
4050 | |
4051 | /** |
4052 | * mpi3mr_eh_bus_reset - Bus reset error handling callback |
4053 | * @scmd: SCSI command reference |
4054 | * |
4055 | * Checks whether pending I/Os are present for the RAID volume; |
4056 | * if not there's no need to reset the adapter. |
4057 | * |
4058 | * Return: SUCCESS of successful reset else FAILED |
4059 | */ |
4060 | static int mpi3mr_eh_bus_reset(struct scsi_cmnd *scmd) |
4061 | { |
4062 | struct mpi3mr_ioc *mrioc = shost_priv(shost: scmd->device->host); |
4063 | struct mpi3mr_stgt_priv_data *stgt_priv_data; |
4064 | struct mpi3mr_sdev_priv_data *sdev_priv_data; |
4065 | u8 dev_type = MPI3_DEVICE_DEVFORM_VD; |
4066 | int retval = FAILED; |
4067 | |
4068 | sdev_priv_data = scmd->device->hostdata; |
4069 | if (sdev_priv_data && sdev_priv_data->tgt_priv_data) { |
4070 | stgt_priv_data = sdev_priv_data->tgt_priv_data; |
4071 | dev_type = stgt_priv_data->dev_type; |
4072 | } |
4073 | |
4074 | if (dev_type == MPI3_DEVICE_DEVFORM_VD) { |
4075 | mpi3mr_wait_for_host_io(mrioc, |
4076 | MPI3MR_RAID_ERRREC_RESET_TIMEOUT); |
4077 | if (!mpi3mr_get_fw_pending_ios(mrioc)) |
4078 | retval = SUCCESS; |
4079 | } |
4080 | if (retval == FAILED) |
4081 | mpi3mr_print_pending_host_io(mrioc); |
4082 | |
4083 | sdev_printk(KERN_INFO, scmd->device, |
4084 | "Bus reset is %s for scmd(%p)\n" , |
4085 | ((retval == SUCCESS) ? "SUCCESS" : "FAILED" ), scmd); |
4086 | return retval; |
4087 | } |
4088 | |
4089 | /** |
4090 | * mpi3mr_eh_target_reset - Target reset error handling callback |
4091 | * @scmd: SCSI command reference |
4092 | * |
4093 | * Issue Target reset Task Management and verify the scmd is |
4094 | * terminated successfully and return status accordingly. |
4095 | * |
4096 | * Return: SUCCESS of successful termination of the scmd else |
4097 | * FAILED |
4098 | */ |
4099 | static int mpi3mr_eh_target_reset(struct scsi_cmnd *scmd) |
4100 | { |
4101 | struct mpi3mr_ioc *mrioc = shost_priv(shost: scmd->device->host); |
4102 | struct mpi3mr_stgt_priv_data *stgt_priv_data; |
4103 | struct mpi3mr_sdev_priv_data *sdev_priv_data; |
4104 | u16 dev_handle; |
4105 | u8 resp_code = 0; |
4106 | int retval = FAILED, ret = 0; |
4107 | |
4108 | sdev_printk(KERN_INFO, scmd->device, |
4109 | "Attempting Target Reset! scmd(%p)\n" , scmd); |
4110 | scsi_print_command(scmd); |
4111 | |
4112 | sdev_priv_data = scmd->device->hostdata; |
4113 | if (!sdev_priv_data || !sdev_priv_data->tgt_priv_data) { |
4114 | sdev_printk(KERN_INFO, scmd->device, |
4115 | "SCSI device is not available\n" ); |
4116 | retval = SUCCESS; |
4117 | goto out; |
4118 | } |
4119 | |
4120 | stgt_priv_data = sdev_priv_data->tgt_priv_data; |
4121 | dev_handle = stgt_priv_data->dev_handle; |
4122 | if (stgt_priv_data->dev_removed) { |
4123 | struct scmd_priv *cmd_priv = scsi_cmd_priv(cmd: scmd); |
4124 | sdev_printk(KERN_INFO, scmd->device, |
4125 | "%s:target(handle = 0x%04x) is removed, target reset is not issued\n" , |
4126 | mrioc->name, dev_handle); |
4127 | if (!cmd_priv->in_lld_scope || cmd_priv->host_tag == MPI3MR_HOSTTAG_INVALID) |
4128 | retval = SUCCESS; |
4129 | else |
4130 | retval = FAILED; |
4131 | goto out; |
4132 | } |
4133 | sdev_printk(KERN_INFO, scmd->device, |
4134 | "Target Reset is issued to handle(0x%04x)\n" , |
4135 | dev_handle); |
4136 | |
4137 | ret = mpi3mr_issue_tm(mrioc, |
4138 | MPI3_SCSITASKMGMT_TASKTYPE_TARGET_RESET, handle: dev_handle, |
4139 | lun: sdev_priv_data->lun_id, MPI3MR_HOSTTAG_BLK_TMS, |
4140 | MPI3MR_RESETTM_TIMEOUT, drv_cmd: &mrioc->host_tm_cmds, resp_code: &resp_code, scmd); |
4141 | |
4142 | if (ret) |
4143 | goto out; |
4144 | |
4145 | if (stgt_priv_data->pend_count) { |
4146 | sdev_printk(KERN_INFO, scmd->device, |
4147 | "%s: target has %d pending commands, target reset is failed\n" , |
4148 | mrioc->name, stgt_priv_data->pend_count); |
4149 | goto out; |
4150 | } |
4151 | |
4152 | retval = SUCCESS; |
4153 | out: |
4154 | sdev_printk(KERN_INFO, scmd->device, |
4155 | "%s: target reset is %s for scmd(%p)\n" , mrioc->name, |
4156 | ((retval == SUCCESS) ? "SUCCESS" : "FAILED" ), scmd); |
4157 | |
4158 | return retval; |
4159 | } |
4160 | |
4161 | /** |
4162 | * mpi3mr_eh_dev_reset- Device reset error handling callback |
4163 | * @scmd: SCSI command reference |
4164 | * |
4165 | * Issue lun reset Task Management and verify the scmd is |
4166 | * terminated successfully and return status accordingly. |
4167 | * |
4168 | * Return: SUCCESS of successful termination of the scmd else |
4169 | * FAILED |
4170 | */ |
4171 | static int mpi3mr_eh_dev_reset(struct scsi_cmnd *scmd) |
4172 | { |
4173 | struct mpi3mr_ioc *mrioc = shost_priv(shost: scmd->device->host); |
4174 | struct mpi3mr_stgt_priv_data *stgt_priv_data; |
4175 | struct mpi3mr_sdev_priv_data *sdev_priv_data; |
4176 | u16 dev_handle; |
4177 | u8 resp_code = 0; |
4178 | int retval = FAILED, ret = 0; |
4179 | |
4180 | sdev_printk(KERN_INFO, scmd->device, |
4181 | "Attempting Device(lun) Reset! scmd(%p)\n" , scmd); |
4182 | scsi_print_command(scmd); |
4183 | |
4184 | sdev_priv_data = scmd->device->hostdata; |
4185 | if (!sdev_priv_data || !sdev_priv_data->tgt_priv_data) { |
4186 | sdev_printk(KERN_INFO, scmd->device, |
4187 | "SCSI device is not available\n" ); |
4188 | retval = SUCCESS; |
4189 | goto out; |
4190 | } |
4191 | |
4192 | stgt_priv_data = sdev_priv_data->tgt_priv_data; |
4193 | dev_handle = stgt_priv_data->dev_handle; |
4194 | if (stgt_priv_data->dev_removed) { |
4195 | struct scmd_priv *cmd_priv = scsi_cmd_priv(cmd: scmd); |
4196 | sdev_printk(KERN_INFO, scmd->device, |
4197 | "%s: device(handle = 0x%04x) is removed, device(LUN) reset is not issued\n" , |
4198 | mrioc->name, dev_handle); |
4199 | if (!cmd_priv->in_lld_scope || cmd_priv->host_tag == MPI3MR_HOSTTAG_INVALID) |
4200 | retval = SUCCESS; |
4201 | else |
4202 | retval = FAILED; |
4203 | goto out; |
4204 | } |
4205 | sdev_printk(KERN_INFO, scmd->device, |
4206 | "Device(lun) Reset is issued to handle(0x%04x)\n" , dev_handle); |
4207 | |
4208 | ret = mpi3mr_issue_tm(mrioc, |
4209 | MPI3_SCSITASKMGMT_TASKTYPE_LOGICAL_UNIT_RESET, handle: dev_handle, |
4210 | lun: sdev_priv_data->lun_id, MPI3MR_HOSTTAG_BLK_TMS, |
4211 | MPI3MR_RESETTM_TIMEOUT, drv_cmd: &mrioc->host_tm_cmds, resp_code: &resp_code, scmd); |
4212 | |
4213 | if (ret) |
4214 | goto out; |
4215 | |
4216 | if (sdev_priv_data->pend_count) { |
4217 | sdev_printk(KERN_INFO, scmd->device, |
4218 | "%s: device has %d pending commands, device(LUN) reset is failed\n" , |
4219 | mrioc->name, sdev_priv_data->pend_count); |
4220 | goto out; |
4221 | } |
4222 | retval = SUCCESS; |
4223 | out: |
4224 | sdev_printk(KERN_INFO, scmd->device, |
4225 | "%s: device(LUN) reset is %s for scmd(%p)\n" , mrioc->name, |
4226 | ((retval == SUCCESS) ? "SUCCESS" : "FAILED" ), scmd); |
4227 | |
4228 | return retval; |
4229 | } |
4230 | |
4231 | /** |
4232 | * mpi3mr_scan_start - Scan start callback handler |
4233 | * @shost: SCSI host reference |
4234 | * |
4235 | * Issue port enable request asynchronously. |
4236 | * |
4237 | * Return: Nothing |
4238 | */ |
4239 | static void mpi3mr_scan_start(struct Scsi_Host *shost) |
4240 | { |
4241 | struct mpi3mr_ioc *mrioc = shost_priv(shost); |
4242 | |
4243 | mrioc->scan_started = 1; |
4244 | ioc_info(mrioc, "%s :Issuing Port Enable\n" , __func__); |
4245 | if (mpi3mr_issue_port_enable(mrioc, async: 1)) { |
4246 | ioc_err(mrioc, "%s :Issuing port enable failed\n" , __func__); |
4247 | mrioc->scan_started = 0; |
4248 | mrioc->scan_failed = MPI3_IOCSTATUS_INTERNAL_ERROR; |
4249 | } |
4250 | } |
4251 | |
4252 | /** |
4253 | * mpi3mr_scan_finished - Scan finished callback handler |
4254 | * @shost: SCSI host reference |
4255 | * @time: Jiffies from the scan start |
4256 | * |
4257 | * Checks whether the port enable is completed or timedout or |
4258 | * failed and set the scan status accordingly after taking any |
4259 | * recovery if required. |
4260 | * |
4261 | * Return: 1 on scan finished or timed out, 0 for in progress |
4262 | */ |
4263 | static int mpi3mr_scan_finished(struct Scsi_Host *shost, |
4264 | unsigned long time) |
4265 | { |
4266 | struct mpi3mr_ioc *mrioc = shost_priv(shost); |
4267 | u32 pe_timeout = MPI3MR_PORTENABLE_TIMEOUT; |
4268 | u32 ioc_status = readl(addr: &mrioc->sysif_regs->ioc_status); |
4269 | |
4270 | if ((ioc_status & MPI3_SYSIF_IOC_STATUS_RESET_HISTORY) || |
4271 | (ioc_status & MPI3_SYSIF_IOC_STATUS_FAULT)) { |
4272 | ioc_err(mrioc, "port enable failed due to fault or reset\n" ); |
4273 | mpi3mr_print_fault_info(mrioc); |
4274 | mrioc->scan_failed = MPI3_IOCSTATUS_INTERNAL_ERROR; |
4275 | mrioc->scan_started = 0; |
4276 | mrioc->init_cmds.is_waiting = 0; |
4277 | mrioc->init_cmds.callback = NULL; |
4278 | mrioc->init_cmds.state = MPI3MR_CMD_NOTUSED; |
4279 | } |
4280 | |
4281 | if (time >= (pe_timeout * HZ)) { |
4282 | ioc_err(mrioc, "port enable failed due to time out\n" ); |
4283 | mpi3mr_check_rh_fault_ioc(mrioc, |
4284 | reason_code: MPI3MR_RESET_FROM_PE_TIMEOUT); |
4285 | mrioc->scan_failed = MPI3_IOCSTATUS_INTERNAL_ERROR; |
4286 | mrioc->scan_started = 0; |
4287 | mrioc->init_cmds.is_waiting = 0; |
4288 | mrioc->init_cmds.callback = NULL; |
4289 | mrioc->init_cmds.state = MPI3MR_CMD_NOTUSED; |
4290 | } |
4291 | |
4292 | if (mrioc->scan_started) |
4293 | return 0; |
4294 | |
4295 | if (mrioc->scan_failed) { |
4296 | ioc_err(mrioc, |
4297 | "port enable failed with status=0x%04x\n" , |
4298 | mrioc->scan_failed); |
4299 | } else |
4300 | ioc_info(mrioc, "port enable is successfully completed\n" ); |
4301 | |
4302 | mpi3mr_start_watchdog(mrioc); |
4303 | mrioc->is_driver_loading = 0; |
4304 | mrioc->stop_bsgs = 0; |
4305 | return 1; |
4306 | } |
4307 | |
4308 | /** |
4309 | * mpi3mr_slave_destroy - Slave destroy callback handler |
4310 | * @sdev: SCSI device reference |
4311 | * |
4312 | * Cleanup and free per device(lun) private data. |
4313 | * |
4314 | * Return: Nothing. |
4315 | */ |
4316 | static void mpi3mr_slave_destroy(struct scsi_device *sdev) |
4317 | { |
4318 | struct Scsi_Host *shost; |
4319 | struct mpi3mr_ioc *mrioc; |
4320 | struct mpi3mr_stgt_priv_data *scsi_tgt_priv_data; |
4321 | struct mpi3mr_tgt_dev *tgt_dev = NULL; |
4322 | unsigned long flags; |
4323 | struct scsi_target *starget; |
4324 | struct sas_rphy *rphy = NULL; |
4325 | |
4326 | if (!sdev->hostdata) |
4327 | return; |
4328 | |
4329 | starget = scsi_target(sdev); |
4330 | shost = dev_to_shost(dev: &starget->dev); |
4331 | mrioc = shost_priv(shost); |
4332 | scsi_tgt_priv_data = starget->hostdata; |
4333 | |
4334 | scsi_tgt_priv_data->num_luns--; |
4335 | |
4336 | spin_lock_irqsave(&mrioc->tgtdev_lock, flags); |
4337 | if (starget->channel == mrioc->scsi_device_channel) |
4338 | tgt_dev = __mpi3mr_get_tgtdev_by_perst_id(mrioc, persist_id: starget->id); |
4339 | else if (mrioc->sas_transport_enabled && !starget->channel) { |
4340 | rphy = dev_to_rphy(starget->dev.parent); |
4341 | tgt_dev = __mpi3mr_get_tgtdev_by_addr_and_rphy(mrioc, |
4342 | sas_address: rphy->identify.sas_address, rphy); |
4343 | } |
4344 | |
4345 | if (tgt_dev && (!scsi_tgt_priv_data->num_luns)) |
4346 | tgt_dev->starget = NULL; |
4347 | if (tgt_dev) |
4348 | mpi3mr_tgtdev_put(s: tgt_dev); |
4349 | spin_unlock_irqrestore(lock: &mrioc->tgtdev_lock, flags); |
4350 | |
4351 | kfree(objp: sdev->hostdata); |
4352 | sdev->hostdata = NULL; |
4353 | } |
4354 | |
4355 | /** |
4356 | * mpi3mr_target_destroy - Target destroy callback handler |
4357 | * @starget: SCSI target reference |
4358 | * |
4359 | * Cleanup and free per target private data. |
4360 | * |
4361 | * Return: Nothing. |
4362 | */ |
4363 | static void mpi3mr_target_destroy(struct scsi_target *starget) |
4364 | { |
4365 | struct Scsi_Host *shost; |
4366 | struct mpi3mr_ioc *mrioc; |
4367 | struct mpi3mr_stgt_priv_data *scsi_tgt_priv_data; |
4368 | struct mpi3mr_tgt_dev *tgt_dev; |
4369 | unsigned long flags; |
4370 | |
4371 | if (!starget->hostdata) |
4372 | return; |
4373 | |
4374 | shost = dev_to_shost(dev: &starget->dev); |
4375 | mrioc = shost_priv(shost); |
4376 | scsi_tgt_priv_data = starget->hostdata; |
4377 | |
4378 | spin_lock_irqsave(&mrioc->tgtdev_lock, flags); |
4379 | tgt_dev = __mpi3mr_get_tgtdev_from_tgtpriv(mrioc, tgt_priv: scsi_tgt_priv_data); |
4380 | if (tgt_dev && (tgt_dev->starget == starget) && |
4381 | (tgt_dev->perst_id == starget->id)) |
4382 | tgt_dev->starget = NULL; |
4383 | if (tgt_dev) { |
4384 | scsi_tgt_priv_data->tgt_dev = NULL; |
4385 | scsi_tgt_priv_data->perst_id = 0; |
4386 | mpi3mr_tgtdev_put(s: tgt_dev); |
4387 | mpi3mr_tgtdev_put(s: tgt_dev); |
4388 | } |
4389 | spin_unlock_irqrestore(lock: &mrioc->tgtdev_lock, flags); |
4390 | |
4391 | kfree(objp: starget->hostdata); |
4392 | starget->hostdata = NULL; |
4393 | } |
4394 | |
4395 | /** |
4396 | * mpi3mr_slave_configure - Slave configure callback handler |
4397 | * @sdev: SCSI device reference |
4398 | * |
4399 | * Configure queue depth, max hardware sectors and virt boundary |
4400 | * as required |
4401 | * |
4402 | * Return: 0 always. |
4403 | */ |
4404 | static int mpi3mr_slave_configure(struct scsi_device *sdev) |
4405 | { |
4406 | struct scsi_target *starget; |
4407 | struct Scsi_Host *shost; |
4408 | struct mpi3mr_ioc *mrioc; |
4409 | struct mpi3mr_tgt_dev *tgt_dev = NULL; |
4410 | unsigned long flags; |
4411 | int retval = 0; |
4412 | struct sas_rphy *rphy = NULL; |
4413 | |
4414 | starget = scsi_target(sdev); |
4415 | shost = dev_to_shost(dev: &starget->dev); |
4416 | mrioc = shost_priv(shost); |
4417 | |
4418 | spin_lock_irqsave(&mrioc->tgtdev_lock, flags); |
4419 | if (starget->channel == mrioc->scsi_device_channel) |
4420 | tgt_dev = __mpi3mr_get_tgtdev_by_perst_id(mrioc, persist_id: starget->id); |
4421 | else if (mrioc->sas_transport_enabled && !starget->channel) { |
4422 | rphy = dev_to_rphy(starget->dev.parent); |
4423 | tgt_dev = __mpi3mr_get_tgtdev_by_addr_and_rphy(mrioc, |
4424 | sas_address: rphy->identify.sas_address, rphy); |
4425 | } |
4426 | spin_unlock_irqrestore(lock: &mrioc->tgtdev_lock, flags); |
4427 | if (!tgt_dev) |
4428 | return -ENXIO; |
4429 | |
4430 | mpi3mr_change_queue_depth(sdev, q_depth: tgt_dev->q_depth); |
4431 | |
4432 | sdev->eh_timeout = MPI3MR_EH_SCMD_TIMEOUT; |
4433 | blk_queue_rq_timeout(sdev->request_queue, MPI3MR_SCMD_TIMEOUT); |
4434 | |
4435 | switch (tgt_dev->dev_type) { |
4436 | case MPI3_DEVICE_DEVFORM_PCIE: |
4437 | /*The block layer hw sector size = 512*/ |
4438 | if ((tgt_dev->dev_spec.pcie_inf.dev_info & |
4439 | MPI3_DEVICE0_PCIE_DEVICE_INFO_TYPE_MASK) == |
4440 | MPI3_DEVICE0_PCIE_DEVICE_INFO_TYPE_NVME_DEVICE) { |
4441 | blk_queue_max_hw_sectors(sdev->request_queue, |
4442 | tgt_dev->dev_spec.pcie_inf.mdts / 512); |
4443 | if (tgt_dev->dev_spec.pcie_inf.pgsz == 0) |
4444 | blk_queue_virt_boundary(sdev->request_queue, |
4445 | ((1 << MPI3MR_DEFAULT_PGSZEXP) - 1)); |
4446 | else |
4447 | blk_queue_virt_boundary(sdev->request_queue, |
4448 | ((1 << tgt_dev->dev_spec.pcie_inf.pgsz) - 1)); |
4449 | } |
4450 | break; |
4451 | default: |
4452 | break; |
4453 | } |
4454 | |
4455 | mpi3mr_tgtdev_put(s: tgt_dev); |
4456 | |
4457 | return retval; |
4458 | } |
4459 | |
4460 | /** |
4461 | * mpi3mr_slave_alloc -Slave alloc callback handler |
4462 | * @sdev: SCSI device reference |
4463 | * |
4464 | * Allocate per device(lun) private data and initialize it. |
4465 | * |
4466 | * Return: 0 on success -ENOMEM on memory allocation failure. |
4467 | */ |
4468 | static int mpi3mr_slave_alloc(struct scsi_device *sdev) |
4469 | { |
4470 | struct Scsi_Host *shost; |
4471 | struct mpi3mr_ioc *mrioc; |
4472 | struct mpi3mr_stgt_priv_data *scsi_tgt_priv_data; |
4473 | struct mpi3mr_tgt_dev *tgt_dev = NULL; |
4474 | struct mpi3mr_sdev_priv_data *scsi_dev_priv_data; |
4475 | unsigned long flags; |
4476 | struct scsi_target *starget; |
4477 | int retval = 0; |
4478 | struct sas_rphy *rphy = NULL; |
4479 | |
4480 | starget = scsi_target(sdev); |
4481 | shost = dev_to_shost(dev: &starget->dev); |
4482 | mrioc = shost_priv(shost); |
4483 | scsi_tgt_priv_data = starget->hostdata; |
4484 | |
4485 | spin_lock_irqsave(&mrioc->tgtdev_lock, flags); |
4486 | |
4487 | if (starget->channel == mrioc->scsi_device_channel) |
4488 | tgt_dev = __mpi3mr_get_tgtdev_by_perst_id(mrioc, persist_id: starget->id); |
4489 | else if (mrioc->sas_transport_enabled && !starget->channel) { |
4490 | rphy = dev_to_rphy(starget->dev.parent); |
4491 | tgt_dev = __mpi3mr_get_tgtdev_by_addr_and_rphy(mrioc, |
4492 | sas_address: rphy->identify.sas_address, rphy); |
4493 | } |
4494 | |
4495 | if (tgt_dev) { |
4496 | if (tgt_dev->starget == NULL) |
4497 | tgt_dev->starget = starget; |
4498 | mpi3mr_tgtdev_put(s: tgt_dev); |
4499 | retval = 0; |
4500 | } else { |
4501 | spin_unlock_irqrestore(lock: &mrioc->tgtdev_lock, flags); |
4502 | return -ENXIO; |
4503 | } |
4504 | |
4505 | spin_unlock_irqrestore(lock: &mrioc->tgtdev_lock, flags); |
4506 | |
4507 | scsi_dev_priv_data = kzalloc(size: sizeof(*scsi_dev_priv_data), GFP_KERNEL); |
4508 | if (!scsi_dev_priv_data) |
4509 | return -ENOMEM; |
4510 | |
4511 | scsi_dev_priv_data->lun_id = sdev->lun; |
4512 | scsi_dev_priv_data->tgt_priv_data = scsi_tgt_priv_data; |
4513 | sdev->hostdata = scsi_dev_priv_data; |
4514 | |
4515 | scsi_tgt_priv_data->num_luns++; |
4516 | |
4517 | return retval; |
4518 | } |
4519 | |
4520 | /** |
4521 | * mpi3mr_target_alloc - Target alloc callback handler |
4522 | * @starget: SCSI target reference |
4523 | * |
4524 | * Allocate per target private data and initialize it. |
4525 | * |
4526 | * Return: 0 on success -ENOMEM on memory allocation failure. |
4527 | */ |
4528 | static int mpi3mr_target_alloc(struct scsi_target *starget) |
4529 | { |
4530 | struct Scsi_Host *shost = dev_to_shost(dev: &starget->dev); |
4531 | struct mpi3mr_ioc *mrioc = shost_priv(shost); |
4532 | struct mpi3mr_stgt_priv_data *scsi_tgt_priv_data; |
4533 | struct mpi3mr_tgt_dev *tgt_dev; |
4534 | unsigned long flags; |
4535 | int retval = 0; |
4536 | struct sas_rphy *rphy = NULL; |
4537 | |
4538 | scsi_tgt_priv_data = kzalloc(size: sizeof(*scsi_tgt_priv_data), GFP_KERNEL); |
4539 | if (!scsi_tgt_priv_data) |
4540 | return -ENOMEM; |
4541 | |
4542 | starget->hostdata = scsi_tgt_priv_data; |
4543 | |
4544 | spin_lock_irqsave(&mrioc->tgtdev_lock, flags); |
4545 | if (starget->channel == mrioc->scsi_device_channel) { |
4546 | tgt_dev = __mpi3mr_get_tgtdev_by_perst_id(mrioc, persist_id: starget->id); |
4547 | if (tgt_dev && !tgt_dev->is_hidden) { |
4548 | scsi_tgt_priv_data->starget = starget; |
4549 | scsi_tgt_priv_data->dev_handle = tgt_dev->dev_handle; |
4550 | scsi_tgt_priv_data->perst_id = tgt_dev->perst_id; |
4551 | scsi_tgt_priv_data->dev_type = tgt_dev->dev_type; |
4552 | scsi_tgt_priv_data->tgt_dev = tgt_dev; |
4553 | tgt_dev->starget = starget; |
4554 | atomic_set(v: &scsi_tgt_priv_data->block_io, i: 0); |
4555 | retval = 0; |
4556 | if ((tgt_dev->dev_type == MPI3_DEVICE_DEVFORM_PCIE) && |
4557 | ((tgt_dev->dev_spec.pcie_inf.dev_info & |
4558 | MPI3_DEVICE0_PCIE_DEVICE_INFO_TYPE_MASK) == |
4559 | MPI3_DEVICE0_PCIE_DEVICE_INFO_TYPE_NVME_DEVICE) && |
4560 | ((tgt_dev->dev_spec.pcie_inf.dev_info & |
4561 | MPI3_DEVICE0_PCIE_DEVICE_INFO_PITYPE_MASK) != |
4562 | MPI3_DEVICE0_PCIE_DEVICE_INFO_PITYPE_0)) |
4563 | scsi_tgt_priv_data->dev_nvme_dif = 1; |
4564 | scsi_tgt_priv_data->io_throttle_enabled = tgt_dev->io_throttle_enabled; |
4565 | scsi_tgt_priv_data->wslen = tgt_dev->wslen; |
4566 | if (tgt_dev->dev_type == MPI3_DEVICE_DEVFORM_VD) |
4567 | scsi_tgt_priv_data->throttle_group = tgt_dev->dev_spec.vd_inf.tg; |
4568 | } else |
4569 | retval = -ENXIO; |
4570 | } else if (mrioc->sas_transport_enabled && !starget->channel) { |
4571 | rphy = dev_to_rphy(starget->dev.parent); |
4572 | tgt_dev = __mpi3mr_get_tgtdev_by_addr_and_rphy(mrioc, |
4573 | sas_address: rphy->identify.sas_address, rphy); |
4574 | if (tgt_dev && !tgt_dev->is_hidden && !tgt_dev->non_stl && |
4575 | (tgt_dev->dev_type == MPI3_DEVICE_DEVFORM_SAS_SATA)) { |
4576 | scsi_tgt_priv_data->starget = starget; |
4577 | scsi_tgt_priv_data->dev_handle = tgt_dev->dev_handle; |
4578 | scsi_tgt_priv_data->perst_id = tgt_dev->perst_id; |
4579 | scsi_tgt_priv_data->dev_type = tgt_dev->dev_type; |
4580 | scsi_tgt_priv_data->tgt_dev = tgt_dev; |
4581 | scsi_tgt_priv_data->io_throttle_enabled = tgt_dev->io_throttle_enabled; |
4582 | scsi_tgt_priv_data->wslen = tgt_dev->wslen; |
4583 | tgt_dev->starget = starget; |
4584 | atomic_set(v: &scsi_tgt_priv_data->block_io, i: 0); |
4585 | retval = 0; |
4586 | } else |
4587 | retval = -ENXIO; |
4588 | } |
4589 | spin_unlock_irqrestore(lock: &mrioc->tgtdev_lock, flags); |
4590 | |
4591 | return retval; |
4592 | } |
4593 | |
4594 | /** |
4595 | * mpi3mr_check_return_unmap - Whether an unmap is allowed |
4596 | * @mrioc: Adapter instance reference |
4597 | * @scmd: SCSI Command reference |
4598 | * |
4599 | * The controller hardware cannot handle certain unmap commands |
4600 | * for NVMe drives, this routine checks those and return true |
4601 | * and completes the SCSI command with proper status and sense |
4602 | * data. |
4603 | * |
4604 | * Return: TRUE for not allowed unmap, FALSE otherwise. |
4605 | */ |
4606 | static bool mpi3mr_check_return_unmap(struct mpi3mr_ioc *mrioc, |
4607 | struct scsi_cmnd *scmd) |
4608 | { |
4609 | unsigned char *buf; |
4610 | u16 param_len, desc_len, trunc_param_len; |
4611 | |
4612 | trunc_param_len = param_len = get_unaligned_be16(p: scmd->cmnd + 7); |
4613 | |
4614 | if (mrioc->pdev->revision) { |
4615 | if ((param_len > 24) && ((param_len - 8) & 0xF)) { |
4616 | trunc_param_len -= (param_len - 8) & 0xF; |
4617 | dprint_scsi_command(mrioc, scmd, MPI3_DEBUG_SCSI_ERROR); |
4618 | dprint_scsi_err(mrioc, |
4619 | "truncating param_len from (%d) to (%d)\n" , |
4620 | param_len, trunc_param_len); |
4621 | put_unaligned_be16(val: trunc_param_len, p: scmd->cmnd + 7); |
4622 | dprint_scsi_command(mrioc, scmd, MPI3_DEBUG_SCSI_ERROR); |
4623 | } |
4624 | return false; |
4625 | } |
4626 | |
4627 | if (!param_len) { |
4628 | ioc_warn(mrioc, |
4629 | "%s: cdb received with zero parameter length\n" , |
4630 | __func__); |
4631 | scsi_print_command(scmd); |
4632 | scmd->result = DID_OK << 16; |
4633 | scsi_done(cmd: scmd); |
4634 | return true; |
4635 | } |
4636 | |
4637 | if (param_len < 24) { |
4638 | ioc_warn(mrioc, |
4639 | "%s: cdb received with invalid param_len: %d\n" , |
4640 | __func__, param_len); |
4641 | scsi_print_command(scmd); |
4642 | scmd->result = SAM_STAT_CHECK_CONDITION; |
4643 | scsi_build_sense_buffer(desc: 0, buf: scmd->sense_buffer, ILLEGAL_REQUEST, |
4644 | asc: 0x1A, ascq: 0); |
4645 | scsi_done(cmd: scmd); |
4646 | return true; |
4647 | } |
4648 | if (param_len != scsi_bufflen(cmd: scmd)) { |
4649 | ioc_warn(mrioc, |
4650 | "%s: cdb received with param_len: %d bufflen: %d\n" , |
4651 | __func__, param_len, scsi_bufflen(scmd)); |
4652 | scsi_print_command(scmd); |
4653 | scmd->result = SAM_STAT_CHECK_CONDITION; |
4654 | scsi_build_sense_buffer(desc: 0, buf: scmd->sense_buffer, ILLEGAL_REQUEST, |
4655 | asc: 0x1A, ascq: 0); |
4656 | scsi_done(cmd: scmd); |
4657 | return true; |
4658 | } |
4659 | buf = kzalloc(size: scsi_bufflen(cmd: scmd), GFP_ATOMIC); |
4660 | if (!buf) { |
4661 | scsi_print_command(scmd); |
4662 | scmd->result = SAM_STAT_CHECK_CONDITION; |
4663 | scsi_build_sense_buffer(desc: 0, buf: scmd->sense_buffer, ILLEGAL_REQUEST, |
4664 | asc: 0x55, ascq: 0x03); |
4665 | scsi_done(cmd: scmd); |
4666 | return true; |
4667 | } |
4668 | scsi_sg_copy_to_buffer(cmd: scmd, buf, buflen: scsi_bufflen(cmd: scmd)); |
4669 | desc_len = get_unaligned_be16(p: &buf[2]); |
4670 | |
4671 | if (desc_len < 16) { |
4672 | ioc_warn(mrioc, |
4673 | "%s: Invalid descriptor length in param list: %d\n" , |
4674 | __func__, desc_len); |
4675 | scsi_print_command(scmd); |
4676 | scmd->result = SAM_STAT_CHECK_CONDITION; |
4677 | scsi_build_sense_buffer(desc: 0, buf: scmd->sense_buffer, ILLEGAL_REQUEST, |
4678 | asc: 0x26, ascq: 0); |
4679 | scsi_done(cmd: scmd); |
4680 | kfree(objp: buf); |
4681 | return true; |
4682 | } |
4683 | |
4684 | if (param_len > (desc_len + 8)) { |
4685 | trunc_param_len = desc_len + 8; |
4686 | scsi_print_command(scmd); |
4687 | dprint_scsi_err(mrioc, |
4688 | "truncating param_len(%d) to desc_len+8(%d)\n" , |
4689 | param_len, trunc_param_len); |
4690 | put_unaligned_be16(val: trunc_param_len, p: scmd->cmnd + 7); |
4691 | scsi_print_command(scmd); |
4692 | } |
4693 | |
4694 | kfree(objp: buf); |
4695 | return false; |
4696 | } |
4697 | |
4698 | /** |
4699 | * mpi3mr_allow_scmd_to_fw - Command is allowed during shutdown |
4700 | * @scmd: SCSI Command reference |
4701 | * |
4702 | * Checks whether a cdb is allowed during shutdown or not. |
4703 | * |
4704 | * Return: TRUE for allowed commands, FALSE otherwise. |
4705 | */ |
4706 | |
4707 | inline bool mpi3mr_allow_scmd_to_fw(struct scsi_cmnd *scmd) |
4708 | { |
4709 | switch (scmd->cmnd[0]) { |
4710 | case SYNCHRONIZE_CACHE: |
4711 | case START_STOP: |
4712 | return true; |
4713 | default: |
4714 | return false; |
4715 | } |
4716 | } |
4717 | |
4718 | /** |
4719 | * mpi3mr_qcmd - I/O request despatcher |
4720 | * @shost: SCSI Host reference |
4721 | * @scmd: SCSI Command reference |
4722 | * |
4723 | * Issues the SCSI Command as an MPI3 request. |
4724 | * |
4725 | * Return: 0 on successful queueing of the request or if the |
4726 | * request is completed with failure. |
4727 | * SCSI_MLQUEUE_DEVICE_BUSY when the device is busy. |
4728 | * SCSI_MLQUEUE_HOST_BUSY when the host queue is full. |
4729 | */ |
4730 | static int mpi3mr_qcmd(struct Scsi_Host *shost, |
4731 | struct scsi_cmnd *scmd) |
4732 | { |
4733 | struct mpi3mr_ioc *mrioc = shost_priv(shost); |
4734 | struct mpi3mr_stgt_priv_data *stgt_priv_data; |
4735 | struct mpi3mr_sdev_priv_data *sdev_priv_data; |
4736 | struct scmd_priv *scmd_priv_data = NULL; |
4737 | struct mpi3_scsi_io_request *scsiio_req = NULL; |
4738 | struct op_req_qinfo *op_req_q = NULL; |
4739 | int retval = 0; |
4740 | u16 dev_handle; |
4741 | u16 host_tag; |
4742 | u32 scsiio_flags = 0, data_len_blks = 0; |
4743 | struct request *rq = scsi_cmd_to_rq(scmd); |
4744 | int iprio_class; |
4745 | u8 is_pcie_dev = 0; |
4746 | u32 tracked_io_sz = 0; |
4747 | u32 ioc_pend_data_len = 0, tg_pend_data_len = 0; |
4748 | struct mpi3mr_throttle_group_info *tg = NULL; |
4749 | |
4750 | if (mrioc->unrecoverable) { |
4751 | scmd->result = DID_ERROR << 16; |
4752 | scsi_done(cmd: scmd); |
4753 | goto out; |
4754 | } |
4755 | |
4756 | sdev_priv_data = scmd->device->hostdata; |
4757 | if (!sdev_priv_data || !sdev_priv_data->tgt_priv_data) { |
4758 | scmd->result = DID_NO_CONNECT << 16; |
4759 | scsi_done(cmd: scmd); |
4760 | goto out; |
4761 | } |
4762 | |
4763 | if (mrioc->stop_drv_processing && |
4764 | !(mpi3mr_allow_scmd_to_fw(scmd))) { |
4765 | scmd->result = DID_NO_CONNECT << 16; |
4766 | scsi_done(cmd: scmd); |
4767 | goto out; |
4768 | } |
4769 | |
4770 | stgt_priv_data = sdev_priv_data->tgt_priv_data; |
4771 | dev_handle = stgt_priv_data->dev_handle; |
4772 | |
4773 | /* Avoid error handling escalation when device is removed or blocked */ |
4774 | |
4775 | if (scmd->device->host->shost_state == SHOST_RECOVERY && |
4776 | scmd->cmnd[0] == TEST_UNIT_READY && |
4777 | (stgt_priv_data->dev_removed || (dev_handle == MPI3MR_INVALID_DEV_HANDLE))) { |
4778 | scsi_build_sense(scmd, desc: 0, UNIT_ATTENTION, asc: 0x29, ascq: 0x07); |
4779 | scsi_done(cmd: scmd); |
4780 | goto out; |
4781 | } |
4782 | |
4783 | if (mrioc->reset_in_progress) { |
4784 | retval = SCSI_MLQUEUE_HOST_BUSY; |
4785 | goto out; |
4786 | } |
4787 | |
4788 | if (atomic_read(v: &stgt_priv_data->block_io)) { |
4789 | if (mrioc->stop_drv_processing) { |
4790 | scmd->result = DID_NO_CONNECT << 16; |
4791 | scsi_done(cmd: scmd); |
4792 | goto out; |
4793 | } |
4794 | retval = SCSI_MLQUEUE_DEVICE_BUSY; |
4795 | goto out; |
4796 | } |
4797 | |
4798 | if (dev_handle == MPI3MR_INVALID_DEV_HANDLE) { |
4799 | scmd->result = DID_NO_CONNECT << 16; |
4800 | scsi_done(cmd: scmd); |
4801 | goto out; |
4802 | } |
4803 | if (stgt_priv_data->dev_removed) { |
4804 | scmd->result = DID_NO_CONNECT << 16; |
4805 | scsi_done(cmd: scmd); |
4806 | goto out; |
4807 | } |
4808 | |
4809 | if (stgt_priv_data->dev_type == MPI3_DEVICE_DEVFORM_PCIE) |
4810 | is_pcie_dev = 1; |
4811 | if ((scmd->cmnd[0] == UNMAP) && is_pcie_dev && |
4812 | (mrioc->pdev->device == MPI3_MFGPAGE_DEVID_SAS4116) && |
4813 | mpi3mr_check_return_unmap(mrioc, scmd)) |
4814 | goto out; |
4815 | |
4816 | host_tag = mpi3mr_host_tag_for_scmd(mrioc, scmd); |
4817 | if (host_tag == MPI3MR_HOSTTAG_INVALID) { |
4818 | scmd->result = DID_ERROR << 16; |
4819 | scsi_done(cmd: scmd); |
4820 | goto out; |
4821 | } |
4822 | |
4823 | if (scmd->sc_data_direction == DMA_FROM_DEVICE) |
4824 | scsiio_flags = MPI3_SCSIIO_FLAGS_DATADIRECTION_READ; |
4825 | else if (scmd->sc_data_direction == DMA_TO_DEVICE) |
4826 | scsiio_flags = MPI3_SCSIIO_FLAGS_DATADIRECTION_WRITE; |
4827 | else |
4828 | scsiio_flags = MPI3_SCSIIO_FLAGS_DATADIRECTION_NO_DATA_TRANSFER; |
4829 | |
4830 | scsiio_flags |= MPI3_SCSIIO_FLAGS_TASKATTRIBUTE_SIMPLEQ; |
4831 | |
4832 | if (sdev_priv_data->ncq_prio_enable) { |
4833 | iprio_class = IOPRIO_PRIO_CLASS(req_get_ioprio(rq)); |
4834 | if (iprio_class == IOPRIO_CLASS_RT) |
4835 | scsiio_flags |= 1 << MPI3_SCSIIO_FLAGS_CMDPRI_SHIFT; |
4836 | } |
4837 | |
4838 | if (scmd->cmd_len > 16) |
4839 | scsiio_flags |= MPI3_SCSIIO_FLAGS_CDB_GREATER_THAN_16; |
4840 | |
4841 | scmd_priv_data = scsi_cmd_priv(cmd: scmd); |
4842 | memset(scmd_priv_data->mpi3mr_scsiio_req, 0, MPI3MR_ADMIN_REQ_FRAME_SZ); |
4843 | scsiio_req = (struct mpi3_scsi_io_request *)scmd_priv_data->mpi3mr_scsiio_req; |
4844 | scsiio_req->function = MPI3_FUNCTION_SCSI_IO; |
4845 | scsiio_req->host_tag = cpu_to_le16(host_tag); |
4846 | |
4847 | mpi3mr_setup_eedp(mrioc, scmd, scsiio_req); |
4848 | |
4849 | if (stgt_priv_data->wslen) |
4850 | mpi3mr_setup_divert_ws(mrioc, scmd, scsiio_req, scsiio_flags: &scsiio_flags, |
4851 | wslen: stgt_priv_data->wslen); |
4852 | |
4853 | memcpy(scsiio_req->cdb.cdb32, scmd->cmnd, scmd->cmd_len); |
4854 | scsiio_req->data_length = cpu_to_le32(scsi_bufflen(scmd)); |
4855 | scsiio_req->dev_handle = cpu_to_le16(dev_handle); |
4856 | scsiio_req->flags = cpu_to_le32(scsiio_flags); |
4857 | int_to_scsilun(sdev_priv_data->lun_id, |
4858 | (struct scsi_lun *)scsiio_req->lun); |
4859 | |
4860 | if (mpi3mr_build_sg_scmd(mrioc, scmd, scsiio_req)) { |
4861 | mpi3mr_clear_scmd_priv(mrioc, scmd); |
4862 | retval = SCSI_MLQUEUE_HOST_BUSY; |
4863 | goto out; |
4864 | } |
4865 | op_req_q = &mrioc->req_qinfo[scmd_priv_data->req_q_idx]; |
4866 | data_len_blks = scsi_bufflen(cmd: scmd) >> 9; |
4867 | if ((data_len_blks >= mrioc->io_throttle_data_length) && |
4868 | stgt_priv_data->io_throttle_enabled) { |
4869 | tracked_io_sz = data_len_blks; |
4870 | tg = stgt_priv_data->throttle_group; |
4871 | if (tg) { |
4872 | ioc_pend_data_len = atomic_add_return(i: data_len_blks, |
4873 | v: &mrioc->pend_large_data_sz); |
4874 | tg_pend_data_len = atomic_add_return(i: data_len_blks, |
4875 | v: &tg->pend_large_data_sz); |
4876 | if (!tg->io_divert && ((ioc_pend_data_len >= |
4877 | mrioc->io_throttle_high) || |
4878 | (tg_pend_data_len >= tg->high))) { |
4879 | tg->io_divert = 1; |
4880 | tg->need_qd_reduction = 1; |
4881 | mpi3mr_set_io_divert_for_all_vd_in_tg(mrioc, |
4882 | tg, divert_value: 1); |
4883 | mpi3mr_queue_qd_reduction_event(mrioc, tg); |
4884 | } |
4885 | } else { |
4886 | ioc_pend_data_len = atomic_add_return(i: data_len_blks, |
4887 | v: &mrioc->pend_large_data_sz); |
4888 | if (ioc_pend_data_len >= mrioc->io_throttle_high) |
4889 | stgt_priv_data->io_divert = 1; |
4890 | } |
4891 | } |
4892 | |
4893 | if (stgt_priv_data->io_divert) { |
4894 | scsiio_req->msg_flags |= |
4895 | MPI3_SCSIIO_MSGFLAGS_DIVERT_TO_FIRMWARE; |
4896 | scsiio_flags |= MPI3_SCSIIO_FLAGS_DIVERT_REASON_IO_THROTTLING; |
4897 | } |
4898 | scsiio_req->flags = cpu_to_le32(scsiio_flags); |
4899 | |
4900 | if (mpi3mr_op_request_post(mrioc, opreqq: op_req_q, |
4901 | req: scmd_priv_data->mpi3mr_scsiio_req)) { |
4902 | mpi3mr_clear_scmd_priv(mrioc, scmd); |
4903 | retval = SCSI_MLQUEUE_HOST_BUSY; |
4904 | if (tracked_io_sz) { |
4905 | atomic_sub(i: tracked_io_sz, v: &mrioc->pend_large_data_sz); |
4906 | if (tg) |
4907 | atomic_sub(i: tracked_io_sz, |
4908 | v: &tg->pend_large_data_sz); |
4909 | } |
4910 | goto out; |
4911 | } |
4912 | |
4913 | out: |
4914 | return retval; |
4915 | } |
4916 | |
4917 | static const struct scsi_host_template mpi3mr_driver_template = { |
4918 | .module = THIS_MODULE, |
4919 | .name = "MPI3 Storage Controller" , |
4920 | .proc_name = MPI3MR_DRIVER_NAME, |
4921 | .queuecommand = mpi3mr_qcmd, |
4922 | .target_alloc = mpi3mr_target_alloc, |
4923 | .slave_alloc = mpi3mr_slave_alloc, |
4924 | .slave_configure = mpi3mr_slave_configure, |
4925 | .target_destroy = mpi3mr_target_destroy, |
4926 | .slave_destroy = mpi3mr_slave_destroy, |
4927 | .scan_finished = mpi3mr_scan_finished, |
4928 | .scan_start = mpi3mr_scan_start, |
4929 | .change_queue_depth = mpi3mr_change_queue_depth, |
4930 | .eh_device_reset_handler = mpi3mr_eh_dev_reset, |
4931 | .eh_target_reset_handler = mpi3mr_eh_target_reset, |
4932 | .eh_bus_reset_handler = mpi3mr_eh_bus_reset, |
4933 | .eh_host_reset_handler = mpi3mr_eh_host_reset, |
4934 | .bios_param = mpi3mr_bios_param, |
4935 | .map_queues = mpi3mr_map_queues, |
4936 | .mq_poll = mpi3mr_blk_mq_poll, |
4937 | .no_write_same = 1, |
4938 | .can_queue = 1, |
4939 | .this_id = -1, |
4940 | .sg_tablesize = MPI3MR_DEFAULT_SGL_ENTRIES, |
4941 | /* max xfer supported is 1M (2K in 512 byte sized sectors) |
4942 | */ |
4943 | .max_sectors = (MPI3MR_DEFAULT_MAX_IO_SIZE / 512), |
4944 | .cmd_per_lun = MPI3MR_MAX_CMDS_LUN, |
4945 | .max_segment_size = 0xffffffff, |
4946 | .track_queue_depth = 1, |
4947 | .cmd_size = sizeof(struct scmd_priv), |
4948 | .shost_groups = mpi3mr_host_groups, |
4949 | .sdev_groups = mpi3mr_dev_groups, |
4950 | }; |
4951 | |
4952 | /** |
4953 | * mpi3mr_init_drv_cmd - Initialize internal command tracker |
4954 | * @cmdptr: Internal command tracker |
4955 | * @host_tag: Host tag used for the specific command |
4956 | * |
4957 | * Initialize the internal command tracker structure with |
4958 | * specified host tag. |
4959 | * |
4960 | * Return: Nothing. |
4961 | */ |
4962 | static inline void mpi3mr_init_drv_cmd(struct mpi3mr_drv_cmd *cmdptr, |
4963 | u16 host_tag) |
4964 | { |
4965 | mutex_init(&cmdptr->mutex); |
4966 | cmdptr->reply = NULL; |
4967 | cmdptr->state = MPI3MR_CMD_NOTUSED; |
4968 | cmdptr->dev_handle = MPI3MR_INVALID_DEV_HANDLE; |
4969 | cmdptr->host_tag = host_tag; |
4970 | } |
4971 | |
4972 | /** |
4973 | * osintfc_mrioc_security_status -Check controller secure status |
4974 | * @pdev: PCI device instance |
4975 | * |
4976 | * Read the Device Serial Number capability from PCI config |
4977 | * space and decide whether the controller is secure or not. |
4978 | * |
4979 | * Return: 0 on success, non-zero on failure. |
4980 | */ |
4981 | static int |
4982 | osintfc_mrioc_security_status(struct pci_dev *pdev) |
4983 | { |
4984 | u32 cap_data; |
4985 | int base; |
4986 | u32 ctlr_status; |
4987 | u32 debug_status; |
4988 | int retval = 0; |
4989 | |
4990 | base = pci_find_ext_capability(dev: pdev, PCI_EXT_CAP_ID_DSN); |
4991 | if (!base) { |
4992 | dev_err(&pdev->dev, |
4993 | "%s: PCI_EXT_CAP_ID_DSN is not supported\n" , __func__); |
4994 | return -1; |
4995 | } |
4996 | |
4997 | pci_read_config_dword(dev: pdev, where: base + 4, val: &cap_data); |
4998 | |
4999 | debug_status = cap_data & MPI3MR_CTLR_SECURE_DBG_STATUS_MASK; |
5000 | ctlr_status = cap_data & MPI3MR_CTLR_SECURITY_STATUS_MASK; |
5001 | |
5002 | switch (ctlr_status) { |
5003 | case MPI3MR_INVALID_DEVICE: |
5004 | dev_err(&pdev->dev, |
5005 | "%s: Non secure ctlr (Invalid) is detected: DID: 0x%x: SVID: 0x%x: SDID: 0x%x\n" , |
5006 | __func__, pdev->device, pdev->subsystem_vendor, |
5007 | pdev->subsystem_device); |
5008 | retval = -1; |
5009 | break; |
5010 | case MPI3MR_CONFIG_SECURE_DEVICE: |
5011 | if (!debug_status) |
5012 | dev_info(&pdev->dev, |
5013 | "%s: Config secure ctlr is detected\n" , |
5014 | __func__); |
5015 | break; |
5016 | case MPI3MR_HARD_SECURE_DEVICE: |
5017 | break; |
5018 | case MPI3MR_TAMPERED_DEVICE: |
5019 | dev_err(&pdev->dev, |
5020 | "%s: Non secure ctlr (Tampered) is detected: DID: 0x%x: SVID: 0x%x: SDID: 0x%x\n" , |
5021 | __func__, pdev->device, pdev->subsystem_vendor, |
5022 | pdev->subsystem_device); |
5023 | retval = -1; |
5024 | break; |
5025 | default: |
5026 | retval = -1; |
5027 | break; |
5028 | } |
5029 | |
5030 | if (!retval && debug_status) { |
5031 | dev_err(&pdev->dev, |
5032 | "%s: Non secure ctlr (Secure Dbg) is detected: DID: 0x%x: SVID: 0x%x: SDID: 0x%x\n" , |
5033 | __func__, pdev->device, pdev->subsystem_vendor, |
5034 | pdev->subsystem_device); |
5035 | retval = -1; |
5036 | } |
5037 | |
5038 | return retval; |
5039 | } |
5040 | |
5041 | /** |
5042 | * mpi3mr_probe - PCI probe callback |
5043 | * @pdev: PCI device instance |
5044 | * @id: PCI device ID details |
5045 | * |
5046 | * controller initialization routine. Checks the security status |
5047 | * of the controller and if it is invalid or tampered return the |
5048 | * probe without initializing the controller. Otherwise, |
5049 | * allocate per adapter instance through shost_priv and |
5050 | * initialize controller specific data structures, initializae |
5051 | * the controller hardware, add shost to the SCSI subsystem. |
5052 | * |
5053 | * Return: 0 on success, non-zero on failure. |
5054 | */ |
5055 | |
5056 | static int |
5057 | mpi3mr_probe(struct pci_dev *pdev, const struct pci_device_id *id) |
5058 | { |
5059 | struct mpi3mr_ioc *mrioc = NULL; |
5060 | struct Scsi_Host *shost = NULL; |
5061 | int retval = 0, i; |
5062 | |
5063 | if (osintfc_mrioc_security_status(pdev)) { |
5064 | warn_non_secure_ctlr = 1; |
5065 | return 1; /* For Invalid and Tampered device */ |
5066 | } |
5067 | |
5068 | shost = scsi_host_alloc(&mpi3mr_driver_template, |
5069 | sizeof(struct mpi3mr_ioc)); |
5070 | if (!shost) { |
5071 | retval = -ENODEV; |
5072 | goto shost_failed; |
5073 | } |
5074 | |
5075 | mrioc = shost_priv(shost); |
5076 | retval = ida_alloc_range(&mrioc_ida, min: 1, U8_MAX, GFP_KERNEL); |
5077 | if (retval < 0) |
5078 | goto id_alloc_failed; |
5079 | mrioc->id = (u8)retval; |
5080 | sprintf(buf: mrioc->driver_name, fmt: "%s" , MPI3MR_DRIVER_NAME); |
5081 | sprintf(buf: mrioc->name, fmt: "%s%d" , mrioc->driver_name, mrioc->id); |
5082 | INIT_LIST_HEAD(list: &mrioc->list); |
5083 | spin_lock(lock: &mrioc_list_lock); |
5084 | list_add_tail(new: &mrioc->list, head: &mrioc_list); |
5085 | spin_unlock(lock: &mrioc_list_lock); |
5086 | |
5087 | spin_lock_init(&mrioc->admin_req_lock); |
5088 | spin_lock_init(&mrioc->reply_free_queue_lock); |
5089 | spin_lock_init(&mrioc->sbq_lock); |
5090 | spin_lock_init(&mrioc->fwevt_lock); |
5091 | spin_lock_init(&mrioc->tgtdev_lock); |
5092 | spin_lock_init(&mrioc->watchdog_lock); |
5093 | spin_lock_init(&mrioc->chain_buf_lock); |
5094 | spin_lock_init(&mrioc->sas_node_lock); |
5095 | |
5096 | INIT_LIST_HEAD(list: &mrioc->fwevt_list); |
5097 | INIT_LIST_HEAD(list: &mrioc->tgtdev_list); |
5098 | INIT_LIST_HEAD(list: &mrioc->delayed_rmhs_list); |
5099 | INIT_LIST_HEAD(list: &mrioc->delayed_evtack_cmds_list); |
5100 | INIT_LIST_HEAD(list: &mrioc->sas_expander_list); |
5101 | INIT_LIST_HEAD(list: &mrioc->hba_port_table_list); |
5102 | INIT_LIST_HEAD(list: &mrioc->enclosure_list); |
5103 | |
5104 | mutex_init(&mrioc->reset_mutex); |
5105 | mpi3mr_init_drv_cmd(cmdptr: &mrioc->init_cmds, MPI3MR_HOSTTAG_INITCMDS); |
5106 | mpi3mr_init_drv_cmd(cmdptr: &mrioc->host_tm_cmds, MPI3MR_HOSTTAG_BLK_TMS); |
5107 | mpi3mr_init_drv_cmd(cmdptr: &mrioc->bsg_cmds, MPI3MR_HOSTTAG_BSG_CMDS); |
5108 | mpi3mr_init_drv_cmd(cmdptr: &mrioc->cfg_cmds, MPI3MR_HOSTTAG_CFG_CMDS); |
5109 | mpi3mr_init_drv_cmd(cmdptr: &mrioc->transport_cmds, |
5110 | MPI3MR_HOSTTAG_TRANSPORT_CMDS); |
5111 | |
5112 | for (i = 0; i < MPI3MR_NUM_DEVRMCMD; i++) |
5113 | mpi3mr_init_drv_cmd(cmdptr: &mrioc->dev_rmhs_cmds[i], |
5114 | MPI3MR_HOSTTAG_DEVRMCMD_MIN + i); |
5115 | |
5116 | for (i = 0; i < MPI3MR_NUM_EVTACKCMD; i++) |
5117 | mpi3mr_init_drv_cmd(cmdptr: &mrioc->evtack_cmds[i], |
5118 | MPI3MR_HOSTTAG_EVTACKCMD_MIN + i); |
5119 | |
5120 | if ((pdev->device == MPI3_MFGPAGE_DEVID_SAS4116) && |
5121 | !pdev->revision) |
5122 | mrioc->enable_segqueue = false; |
5123 | else |
5124 | mrioc->enable_segqueue = true; |
5125 | |
5126 | init_waitqueue_head(&mrioc->reset_waitq); |
5127 | mrioc->logging_level = logging_level; |
5128 | mrioc->shost = shost; |
5129 | mrioc->pdev = pdev; |
5130 | mrioc->stop_bsgs = 1; |
5131 | |
5132 | mrioc->max_sgl_entries = max_sgl_entries; |
5133 | if (max_sgl_entries > MPI3MR_MAX_SGL_ENTRIES) |
5134 | mrioc->max_sgl_entries = MPI3MR_MAX_SGL_ENTRIES; |
5135 | else if (max_sgl_entries < MPI3MR_DEFAULT_SGL_ENTRIES) |
5136 | mrioc->max_sgl_entries = MPI3MR_DEFAULT_SGL_ENTRIES; |
5137 | else { |
5138 | mrioc->max_sgl_entries /= MPI3MR_DEFAULT_SGL_ENTRIES; |
5139 | mrioc->max_sgl_entries *= MPI3MR_DEFAULT_SGL_ENTRIES; |
5140 | } |
5141 | |
5142 | /* init shost parameters */ |
5143 | shost->max_cmd_len = MPI3MR_MAX_CDB_LENGTH; |
5144 | shost->max_lun = -1; |
5145 | shost->unique_id = mrioc->id; |
5146 | |
5147 | shost->max_channel = 0; |
5148 | shost->max_id = 0xFFFFFFFF; |
5149 | |
5150 | shost->host_tagset = 1; |
5151 | |
5152 | if (prot_mask >= 0) |
5153 | scsi_host_set_prot(shost, mask: prot_mask); |
5154 | else { |
5155 | prot_mask = SHOST_DIF_TYPE1_PROTECTION |
5156 | | SHOST_DIF_TYPE2_PROTECTION |
5157 | | SHOST_DIF_TYPE3_PROTECTION; |
5158 | scsi_host_set_prot(shost, mask: prot_mask); |
5159 | } |
5160 | |
5161 | ioc_info(mrioc, |
5162 | "%s :host protection capabilities enabled %s%s%s%s%s%s%s\n" , |
5163 | __func__, |
5164 | (prot_mask & SHOST_DIF_TYPE1_PROTECTION) ? " DIF1" : "" , |
5165 | (prot_mask & SHOST_DIF_TYPE2_PROTECTION) ? " DIF2" : "" , |
5166 | (prot_mask & SHOST_DIF_TYPE3_PROTECTION) ? " DIF3" : "" , |
5167 | (prot_mask & SHOST_DIX_TYPE0_PROTECTION) ? " DIX0" : "" , |
5168 | (prot_mask & SHOST_DIX_TYPE1_PROTECTION) ? " DIX1" : "" , |
5169 | (prot_mask & SHOST_DIX_TYPE2_PROTECTION) ? " DIX2" : "" , |
5170 | (prot_mask & SHOST_DIX_TYPE3_PROTECTION) ? " DIX3" : "" ); |
5171 | |
5172 | if (prot_guard_mask) |
5173 | scsi_host_set_guard(shost, type: (prot_guard_mask & 3)); |
5174 | else |
5175 | scsi_host_set_guard(shost, type: SHOST_DIX_GUARD_CRC); |
5176 | |
5177 | snprintf(buf: mrioc->fwevt_worker_name, size: sizeof(mrioc->fwevt_worker_name), |
5178 | fmt: "%s%d_fwevt_wrkr" , mrioc->driver_name, mrioc->id); |
5179 | mrioc->fwevt_worker_thread = alloc_ordered_workqueue( |
5180 | mrioc->fwevt_worker_name, 0); |
5181 | if (!mrioc->fwevt_worker_thread) { |
5182 | ioc_err(mrioc, "failure at %s:%d/%s()!\n" , |
5183 | __FILE__, __LINE__, __func__); |
5184 | retval = -ENODEV; |
5185 | goto fwevtthread_failed; |
5186 | } |
5187 | |
5188 | mrioc->is_driver_loading = 1; |
5189 | mrioc->cpu_count = num_online_cpus(); |
5190 | if (mpi3mr_setup_resources(mrioc)) { |
5191 | ioc_err(mrioc, "setup resources failed\n" ); |
5192 | retval = -ENODEV; |
5193 | goto resource_alloc_failed; |
5194 | } |
5195 | if (mpi3mr_init_ioc(mrioc)) { |
5196 | ioc_err(mrioc, "initializing IOC failed\n" ); |
5197 | retval = -ENODEV; |
5198 | goto init_ioc_failed; |
5199 | } |
5200 | |
5201 | shost->nr_hw_queues = mrioc->num_op_reply_q; |
5202 | if (mrioc->active_poll_qcount) |
5203 | shost->nr_maps = 3; |
5204 | |
5205 | shost->can_queue = mrioc->max_host_ios; |
5206 | shost->sg_tablesize = mrioc->max_sgl_entries; |
5207 | shost->max_id = mrioc->facts.max_perids + 1; |
5208 | |
5209 | retval = scsi_add_host(host: shost, dev: &pdev->dev); |
5210 | if (retval) { |
5211 | ioc_err(mrioc, "failure at %s:%d/%s()!\n" , |
5212 | __FILE__, __LINE__, __func__); |
5213 | goto addhost_failed; |
5214 | } |
5215 | |
5216 | scsi_scan_host(shost); |
5217 | mpi3mr_bsg_init(mrioc); |
5218 | return retval; |
5219 | |
5220 | addhost_failed: |
5221 | mpi3mr_stop_watchdog(mrioc); |
5222 | mpi3mr_cleanup_ioc(mrioc); |
5223 | init_ioc_failed: |
5224 | mpi3mr_free_mem(mrioc); |
5225 | mpi3mr_cleanup_resources(mrioc); |
5226 | resource_alloc_failed: |
5227 | destroy_workqueue(wq: mrioc->fwevt_worker_thread); |
5228 | fwevtthread_failed: |
5229 | ida_free(&mrioc_ida, id: mrioc->id); |
5230 | spin_lock(lock: &mrioc_list_lock); |
5231 | list_del(entry: &mrioc->list); |
5232 | spin_unlock(lock: &mrioc_list_lock); |
5233 | id_alloc_failed: |
5234 | scsi_host_put(t: shost); |
5235 | shost_failed: |
5236 | return retval; |
5237 | } |
5238 | |
5239 | /** |
5240 | * mpi3mr_remove - PCI remove callback |
5241 | * @pdev: PCI device instance |
5242 | * |
5243 | * Cleanup the IOC by issuing MUR and shutdown notification. |
5244 | * Free up all memory and resources associated with the |
5245 | * controllerand target devices, unregister the shost. |
5246 | * |
5247 | * Return: Nothing. |
5248 | */ |
5249 | static void mpi3mr_remove(struct pci_dev *pdev) |
5250 | { |
5251 | struct Scsi_Host *shost = pci_get_drvdata(pdev); |
5252 | struct mpi3mr_ioc *mrioc; |
5253 | struct workqueue_struct *wq; |
5254 | unsigned long flags; |
5255 | struct mpi3mr_tgt_dev *tgtdev, *tgtdev_next; |
5256 | struct mpi3mr_hba_port *port, *hba_port_next; |
5257 | struct mpi3mr_sas_node *sas_expander, *sas_expander_next; |
5258 | |
5259 | if (!shost) |
5260 | return; |
5261 | |
5262 | mrioc = shost_priv(shost); |
5263 | while (mrioc->reset_in_progress || mrioc->is_driver_loading) |
5264 | ssleep(seconds: 1); |
5265 | |
5266 | if (!pci_device_is_present(pdev: mrioc->pdev)) { |
5267 | mrioc->unrecoverable = 1; |
5268 | mpi3mr_flush_cmds_for_unrecovered_controller(mrioc); |
5269 | } |
5270 | |
5271 | mpi3mr_bsg_exit(mrioc); |
5272 | mrioc->stop_drv_processing = 1; |
5273 | mpi3mr_cleanup_fwevt_list(mrioc); |
5274 | spin_lock_irqsave(&mrioc->fwevt_lock, flags); |
5275 | wq = mrioc->fwevt_worker_thread; |
5276 | mrioc->fwevt_worker_thread = NULL; |
5277 | spin_unlock_irqrestore(lock: &mrioc->fwevt_lock, flags); |
5278 | if (wq) |
5279 | destroy_workqueue(wq); |
5280 | |
5281 | if (mrioc->sas_transport_enabled) |
5282 | sas_remove_host(shost); |
5283 | else |
5284 | scsi_remove_host(shost); |
5285 | |
5286 | list_for_each_entry_safe(tgtdev, tgtdev_next, &mrioc->tgtdev_list, |
5287 | list) { |
5288 | mpi3mr_remove_tgtdev_from_host(mrioc, tgtdev); |
5289 | mpi3mr_tgtdev_del_from_list(mrioc, tgtdev, must_delete: true); |
5290 | mpi3mr_tgtdev_put(s: tgtdev); |
5291 | } |
5292 | mpi3mr_stop_watchdog(mrioc); |
5293 | mpi3mr_cleanup_ioc(mrioc); |
5294 | mpi3mr_free_mem(mrioc); |
5295 | mpi3mr_cleanup_resources(mrioc); |
5296 | |
5297 | spin_lock_irqsave(&mrioc->sas_node_lock, flags); |
5298 | list_for_each_entry_safe_reverse(sas_expander, sas_expander_next, |
5299 | &mrioc->sas_expander_list, list) { |
5300 | spin_unlock_irqrestore(lock: &mrioc->sas_node_lock, flags); |
5301 | mpi3mr_expander_node_remove(mrioc, sas_expander); |
5302 | spin_lock_irqsave(&mrioc->sas_node_lock, flags); |
5303 | } |
5304 | list_for_each_entry_safe(port, hba_port_next, &mrioc->hba_port_table_list, list) { |
5305 | ioc_info(mrioc, |
5306 | "removing hba_port entry: %p port: %d from hba_port list\n" , |
5307 | port, port->port_id); |
5308 | list_del(entry: &port->list); |
5309 | kfree(objp: port); |
5310 | } |
5311 | spin_unlock_irqrestore(lock: &mrioc->sas_node_lock, flags); |
5312 | |
5313 | if (mrioc->sas_hba.num_phys) { |
5314 | kfree(objp: mrioc->sas_hba.phy); |
5315 | mrioc->sas_hba.phy = NULL; |
5316 | mrioc->sas_hba.num_phys = 0; |
5317 | } |
5318 | |
5319 | ida_free(&mrioc_ida, id: mrioc->id); |
5320 | spin_lock(lock: &mrioc_list_lock); |
5321 | list_del(entry: &mrioc->list); |
5322 | spin_unlock(lock: &mrioc_list_lock); |
5323 | |
5324 | scsi_host_put(t: shost); |
5325 | } |
5326 | |
5327 | /** |
5328 | * mpi3mr_shutdown - PCI shutdown callback |
5329 | * @pdev: PCI device instance |
5330 | * |
5331 | * Free up all memory and resources associated with the |
5332 | * controller |
5333 | * |
5334 | * Return: Nothing. |
5335 | */ |
5336 | static void mpi3mr_shutdown(struct pci_dev *pdev) |
5337 | { |
5338 | struct Scsi_Host *shost = pci_get_drvdata(pdev); |
5339 | struct mpi3mr_ioc *mrioc; |
5340 | struct workqueue_struct *wq; |
5341 | unsigned long flags; |
5342 | |
5343 | if (!shost) |
5344 | return; |
5345 | |
5346 | mrioc = shost_priv(shost); |
5347 | while (mrioc->reset_in_progress || mrioc->is_driver_loading) |
5348 | ssleep(seconds: 1); |
5349 | |
5350 | mrioc->stop_drv_processing = 1; |
5351 | mpi3mr_cleanup_fwevt_list(mrioc); |
5352 | spin_lock_irqsave(&mrioc->fwevt_lock, flags); |
5353 | wq = mrioc->fwevt_worker_thread; |
5354 | mrioc->fwevt_worker_thread = NULL; |
5355 | spin_unlock_irqrestore(lock: &mrioc->fwevt_lock, flags); |
5356 | if (wq) |
5357 | destroy_workqueue(wq); |
5358 | |
5359 | mpi3mr_stop_watchdog(mrioc); |
5360 | mpi3mr_cleanup_ioc(mrioc); |
5361 | mpi3mr_cleanup_resources(mrioc); |
5362 | } |
5363 | |
5364 | /** |
5365 | * mpi3mr_suspend - PCI power management suspend callback |
5366 | * @dev: Device struct |
5367 | * |
5368 | * Change the power state to the given value and cleanup the IOC |
5369 | * by issuing MUR and shutdown notification |
5370 | * |
5371 | * Return: 0 always. |
5372 | */ |
5373 | static int __maybe_unused |
5374 | mpi3mr_suspend(struct device *dev) |
5375 | { |
5376 | struct pci_dev *pdev = to_pci_dev(dev); |
5377 | struct Scsi_Host *shost = pci_get_drvdata(pdev); |
5378 | struct mpi3mr_ioc *mrioc; |
5379 | |
5380 | if (!shost) |
5381 | return 0; |
5382 | |
5383 | mrioc = shost_priv(shost); |
5384 | while (mrioc->reset_in_progress || mrioc->is_driver_loading) |
5385 | ssleep(seconds: 1); |
5386 | mrioc->stop_drv_processing = 1; |
5387 | mpi3mr_cleanup_fwevt_list(mrioc); |
5388 | scsi_block_requests(shost); |
5389 | mpi3mr_stop_watchdog(mrioc); |
5390 | mpi3mr_cleanup_ioc(mrioc); |
5391 | |
5392 | ioc_info(mrioc, "pdev=0x%p, slot=%s, entering operating state\n" , |
5393 | pdev, pci_name(pdev)); |
5394 | mpi3mr_cleanup_resources(mrioc); |
5395 | |
5396 | return 0; |
5397 | } |
5398 | |
5399 | /** |
5400 | * mpi3mr_resume - PCI power management resume callback |
5401 | * @dev: Device struct |
5402 | * |
5403 | * Restore the power state to D0 and reinitialize the controller |
5404 | * and resume I/O operations to the target devices |
5405 | * |
5406 | * Return: 0 on success, non-zero on failure |
5407 | */ |
5408 | static int __maybe_unused |
5409 | mpi3mr_resume(struct device *dev) |
5410 | { |
5411 | struct pci_dev *pdev = to_pci_dev(dev); |
5412 | struct Scsi_Host *shost = pci_get_drvdata(pdev); |
5413 | struct mpi3mr_ioc *mrioc; |
5414 | pci_power_t device_state = pdev->current_state; |
5415 | int r; |
5416 | |
5417 | if (!shost) |
5418 | return 0; |
5419 | |
5420 | mrioc = shost_priv(shost); |
5421 | |
5422 | ioc_info(mrioc, "pdev=0x%p, slot=%s, previous operating state [D%d]\n" , |
5423 | pdev, pci_name(pdev), device_state); |
5424 | mrioc->pdev = pdev; |
5425 | mrioc->cpu_count = num_online_cpus(); |
5426 | r = mpi3mr_setup_resources(mrioc); |
5427 | if (r) { |
5428 | ioc_info(mrioc, "%s: Setup resources failed[%d]\n" , |
5429 | __func__, r); |
5430 | return r; |
5431 | } |
5432 | |
5433 | mrioc->stop_drv_processing = 0; |
5434 | mpi3mr_invalidate_devhandles(mrioc); |
5435 | mpi3mr_free_enclosure_list(mrioc); |
5436 | mpi3mr_memset_buffers(mrioc); |
5437 | r = mpi3mr_reinit_ioc(mrioc, is_resume: 1); |
5438 | if (r) { |
5439 | ioc_err(mrioc, "resuming controller failed[%d]\n" , r); |
5440 | return r; |
5441 | } |
5442 | ssleep(MPI3MR_RESET_TOPOLOGY_SETTLE_TIME); |
5443 | scsi_unblock_requests(shost); |
5444 | mrioc->device_refresh_on = 0; |
5445 | mpi3mr_start_watchdog(mrioc); |
5446 | |
5447 | return 0; |
5448 | } |
5449 | |
5450 | static const struct pci_device_id mpi3mr_pci_id_table[] = { |
5451 | { |
5452 | PCI_DEVICE_SUB(MPI3_MFGPAGE_VENDORID_BROADCOM, |
5453 | MPI3_MFGPAGE_DEVID_SAS4116, PCI_ANY_ID, PCI_ANY_ID) |
5454 | }, |
5455 | { |
5456 | PCI_DEVICE_SUB(MPI3_MFGPAGE_VENDORID_BROADCOM, |
5457 | MPI3_MFGPAGE_DEVID_SAS5116_MPI, PCI_ANY_ID, PCI_ANY_ID) |
5458 | }, |
5459 | { |
5460 | PCI_DEVICE_SUB(MPI3_MFGPAGE_VENDORID_BROADCOM, |
5461 | MPI3_MFGPAGE_DEVID_SAS5116_MPI_MGMT, PCI_ANY_ID, PCI_ANY_ID) |
5462 | }, |
5463 | { 0 } |
5464 | }; |
5465 | MODULE_DEVICE_TABLE(pci, mpi3mr_pci_id_table); |
5466 | |
5467 | static SIMPLE_DEV_PM_OPS(mpi3mr_pm_ops, mpi3mr_suspend, mpi3mr_resume); |
5468 | |
5469 | static struct pci_driver mpi3mr_pci_driver = { |
5470 | .name = MPI3MR_DRIVER_NAME, |
5471 | .id_table = mpi3mr_pci_id_table, |
5472 | .probe = mpi3mr_probe, |
5473 | .remove = mpi3mr_remove, |
5474 | .shutdown = mpi3mr_shutdown, |
5475 | .driver.pm = &mpi3mr_pm_ops, |
5476 | }; |
5477 | |
5478 | static ssize_t event_counter_show(struct device_driver *dd, char *buf) |
5479 | { |
5480 | return sprintf(buf, fmt: "%llu\n" , atomic64_read(v: &event_counter)); |
5481 | } |
5482 | static DRIVER_ATTR_RO(event_counter); |
5483 | |
5484 | static int __init mpi3mr_init(void) |
5485 | { |
5486 | int ret_val; |
5487 | |
5488 | pr_info("Loading %s version %s\n" , MPI3MR_DRIVER_NAME, |
5489 | MPI3MR_DRIVER_VERSION); |
5490 | |
5491 | mpi3mr_transport_template = |
5492 | sas_attach_transport(&mpi3mr_transport_functions); |
5493 | if (!mpi3mr_transport_template) { |
5494 | pr_err("%s failed to load due to sas transport attach failure\n" , |
5495 | MPI3MR_DRIVER_NAME); |
5496 | return -ENODEV; |
5497 | } |
5498 | |
5499 | ret_val = pci_register_driver(&mpi3mr_pci_driver); |
5500 | if (ret_val) { |
5501 | pr_err("%s failed to load due to pci register driver failure\n" , |
5502 | MPI3MR_DRIVER_NAME); |
5503 | goto err_pci_reg_fail; |
5504 | } |
5505 | |
5506 | ret_val = driver_create_file(driver: &mpi3mr_pci_driver.driver, |
5507 | attr: &driver_attr_event_counter); |
5508 | if (ret_val) |
5509 | goto err_event_counter; |
5510 | |
5511 | return ret_val; |
5512 | |
5513 | err_event_counter: |
5514 | pci_unregister_driver(dev: &mpi3mr_pci_driver); |
5515 | |
5516 | err_pci_reg_fail: |
5517 | sas_release_transport(mpi3mr_transport_template); |
5518 | return ret_val; |
5519 | } |
5520 | |
5521 | static void __exit mpi3mr_exit(void) |
5522 | { |
5523 | if (warn_non_secure_ctlr) |
5524 | pr_warn( |
5525 | "Unloading %s version %s while managing a non secure controller\n" , |
5526 | MPI3MR_DRIVER_NAME, MPI3MR_DRIVER_VERSION); |
5527 | else |
5528 | pr_info("Unloading %s version %s\n" , MPI3MR_DRIVER_NAME, |
5529 | MPI3MR_DRIVER_VERSION); |
5530 | |
5531 | driver_remove_file(driver: &mpi3mr_pci_driver.driver, |
5532 | attr: &driver_attr_event_counter); |
5533 | pci_unregister_driver(dev: &mpi3mr_pci_driver); |
5534 | sas_release_transport(mpi3mr_transport_template); |
5535 | ida_destroy(ida: &mrioc_ida); |
5536 | } |
5537 | |
5538 | module_init(mpi3mr_init); |
5539 | module_exit(mpi3mr_exit); |
5540 | |