diff options
Diffstat (limited to 'drivers/scsi/bfa/bfa_tskim.c')
-rw-r--r-- | drivers/scsi/bfa/bfa_tskim.c | 690 |
1 files changed, 0 insertions, 690 deletions
diff --git a/drivers/scsi/bfa/bfa_tskim.c b/drivers/scsi/bfa/bfa_tskim.c deleted file mode 100644 index ad9aaaedd3f1..000000000000 --- a/drivers/scsi/bfa/bfa_tskim.c +++ /dev/null | |||
@@ -1,690 +0,0 @@ | |||
1 | /* | ||
2 | * Copyright (c) 2005-2009 Brocade Communications Systems, Inc. | ||
3 | * All rights reserved | ||
4 | * www.brocade.com | ||
5 | * | ||
6 | * Linux driver for Brocade Fibre Channel Host Bus Adapter. | ||
7 | * | ||
8 | * This program is free software; you can redistribute it and/or modify it | ||
9 | * under the terms of the GNU General Public License (GPL) Version 2 as | ||
10 | * published by the Free Software Foundation | ||
11 | * | ||
12 | * This program is distributed in the hope that it will be useful, but | ||
13 | * WITHOUT ANY WARRANTY; without even the implied warranty of | ||
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
15 | * General Public License for more details. | ||
16 | */ | ||
17 | |||
18 | #include <bfa.h> | ||
19 | #include <bfa_cb_ioim_macros.h> | ||
20 | |||
21 | BFA_TRC_FILE(HAL, TSKIM); | ||
22 | |||
23 | /** | ||
24 | * task management completion handling | ||
25 | */ | ||
26 | #define bfa_tskim_qcomp(__tskim, __cbfn) do { \ | ||
27 | bfa_cb_queue((__tskim)->bfa, &(__tskim)->hcb_qe, \ | ||
28 | __cbfn, (__tskim)); \ | ||
29 | bfa_tskim_notify_comp(__tskim); \ | ||
30 | } while (0) | ||
31 | |||
32 | #define bfa_tskim_notify_comp(__tskim) do { \ | ||
33 | if ((__tskim)->notify) \ | ||
34 | bfa_itnim_tskdone((__tskim)->itnim); \ | ||
35 | } while (0) | ||
36 | |||
37 | /* | ||
38 | * forward declarations | ||
39 | */ | ||
40 | static void __bfa_cb_tskim_done(void *cbarg, bfa_boolean_t complete); | ||
41 | static void __bfa_cb_tskim_failed(void *cbarg, bfa_boolean_t complete); | ||
42 | static bfa_boolean_t bfa_tskim_match_scope(struct bfa_tskim_s *tskim, | ||
43 | lun_t lun); | ||
44 | static void bfa_tskim_gather_ios(struct bfa_tskim_s *tskim); | ||
45 | static void bfa_tskim_cleanp_comp(void *tskim_cbarg); | ||
46 | static void bfa_tskim_cleanup_ios(struct bfa_tskim_s *tskim); | ||
47 | static bfa_boolean_t bfa_tskim_send(struct bfa_tskim_s *tskim); | ||
48 | static bfa_boolean_t bfa_tskim_send_abort(struct bfa_tskim_s *tskim); | ||
49 | static void bfa_tskim_iocdisable_ios(struct bfa_tskim_s *tskim); | ||
50 | |||
51 | /** | ||
52 | * bfa_tskim_sm | ||
53 | */ | ||
54 | |||
55 | enum bfa_tskim_event { | ||
56 | BFA_TSKIM_SM_START = 1, /* TM command start */ | ||
57 | BFA_TSKIM_SM_DONE = 2, /* TM completion */ | ||
58 | BFA_TSKIM_SM_QRESUME = 3, /* resume after qfull */ | ||
59 | BFA_TSKIM_SM_HWFAIL = 5, /* IOC h/w failure event */ | ||
60 | BFA_TSKIM_SM_HCB = 6, /* BFA callback completion */ | ||
61 | BFA_TSKIM_SM_IOS_DONE = 7, /* IO and sub TM completions */ | ||
62 | BFA_TSKIM_SM_CLEANUP = 8, /* TM cleanup on ITN offline */ | ||
63 | BFA_TSKIM_SM_CLEANUP_DONE = 9, /* TM abort completion */ | ||
64 | }; | ||
65 | |||
66 | static void bfa_tskim_sm_uninit(struct bfa_tskim_s *tskim, | ||
67 | enum bfa_tskim_event event); | ||
68 | static void bfa_tskim_sm_active(struct bfa_tskim_s *tskim, | ||
69 | enum bfa_tskim_event event); | ||
70 | static void bfa_tskim_sm_cleanup(struct bfa_tskim_s *tskim, | ||
71 | enum bfa_tskim_event event); | ||
72 | static void bfa_tskim_sm_iocleanup(struct bfa_tskim_s *tskim, | ||
73 | enum bfa_tskim_event event); | ||
74 | static void bfa_tskim_sm_qfull(struct bfa_tskim_s *tskim, | ||
75 | enum bfa_tskim_event event); | ||
76 | static void bfa_tskim_sm_cleanup_qfull(struct bfa_tskim_s *tskim, | ||
77 | enum bfa_tskim_event event); | ||
78 | static void bfa_tskim_sm_hcb(struct bfa_tskim_s *tskim, | ||
79 | enum bfa_tskim_event event); | ||
80 | |||
81 | /** | ||
82 | * Task management command beginning state. | ||
83 | */ | ||
84 | static void | ||
85 | bfa_tskim_sm_uninit(struct bfa_tskim_s *tskim, enum bfa_tskim_event event) | ||
86 | { | ||
87 | bfa_trc(tskim->bfa, event); | ||
88 | |||
89 | switch (event) { | ||
90 | case BFA_TSKIM_SM_START: | ||
91 | bfa_sm_set_state(tskim, bfa_tskim_sm_active); | ||
92 | bfa_tskim_gather_ios(tskim); | ||
93 | |||
94 | /** | ||
95 | * If device is offline, do not send TM on wire. Just cleanup | ||
96 | * any pending IO requests and complete TM request. | ||
97 | */ | ||
98 | if (!bfa_itnim_is_online(tskim->itnim)) { | ||
99 | bfa_sm_set_state(tskim, bfa_tskim_sm_iocleanup); | ||
100 | tskim->tsk_status = BFI_TSKIM_STS_OK; | ||
101 | bfa_tskim_cleanup_ios(tskim); | ||
102 | return; | ||
103 | } | ||
104 | |||
105 | if (!bfa_tskim_send(tskim)) { | ||
106 | bfa_sm_set_state(tskim, bfa_tskim_sm_qfull); | ||
107 | bfa_reqq_wait(tskim->bfa, tskim->itnim->reqq, | ||
108 | &tskim->reqq_wait); | ||
109 | } | ||
110 | break; | ||
111 | |||
112 | default: | ||
113 | bfa_sm_fault(tskim->bfa, event); | ||
114 | } | ||
115 | } | ||
116 | |||
117 | /** | ||
118 | * brief | ||
119 | * TM command is active, awaiting completion from firmware to | ||
120 | * cleanup IO requests in TM scope. | ||
121 | */ | ||
122 | static void | ||
123 | bfa_tskim_sm_active(struct bfa_tskim_s *tskim, enum bfa_tskim_event event) | ||
124 | { | ||
125 | bfa_trc(tskim->bfa, event); | ||
126 | |||
127 | switch (event) { | ||
128 | case BFA_TSKIM_SM_DONE: | ||
129 | bfa_sm_set_state(tskim, bfa_tskim_sm_iocleanup); | ||
130 | bfa_tskim_cleanup_ios(tskim); | ||
131 | break; | ||
132 | |||
133 | case BFA_TSKIM_SM_CLEANUP: | ||
134 | bfa_sm_set_state(tskim, bfa_tskim_sm_cleanup); | ||
135 | if (!bfa_tskim_send_abort(tskim)) { | ||
136 | bfa_sm_set_state(tskim, bfa_tskim_sm_cleanup_qfull); | ||
137 | bfa_reqq_wait(tskim->bfa, tskim->itnim->reqq, | ||
138 | &tskim->reqq_wait); | ||
139 | } | ||
140 | break; | ||
141 | |||
142 | case BFA_TSKIM_SM_HWFAIL: | ||
143 | bfa_sm_set_state(tskim, bfa_tskim_sm_hcb); | ||
144 | bfa_tskim_iocdisable_ios(tskim); | ||
145 | bfa_tskim_qcomp(tskim, __bfa_cb_tskim_failed); | ||
146 | break; | ||
147 | |||
148 | default: | ||
149 | bfa_sm_fault(tskim->bfa, event); | ||
150 | } | ||
151 | } | ||
152 | |||
153 | /** | ||
154 | * An active TM is being cleaned up since ITN is offline. Awaiting cleanup | ||
155 | * completion event from firmware. | ||
156 | */ | ||
157 | static void | ||
158 | bfa_tskim_sm_cleanup(struct bfa_tskim_s *tskim, enum bfa_tskim_event event) | ||
159 | { | ||
160 | bfa_trc(tskim->bfa, event); | ||
161 | |||
162 | switch (event) { | ||
163 | case BFA_TSKIM_SM_DONE: | ||
164 | /** | ||
165 | * Ignore and wait for ABORT completion from firmware. | ||
166 | */ | ||
167 | break; | ||
168 | |||
169 | case BFA_TSKIM_SM_CLEANUP_DONE: | ||
170 | bfa_sm_set_state(tskim, bfa_tskim_sm_iocleanup); | ||
171 | bfa_tskim_cleanup_ios(tskim); | ||
172 | break; | ||
173 | |||
174 | case BFA_TSKIM_SM_HWFAIL: | ||
175 | bfa_sm_set_state(tskim, bfa_tskim_sm_hcb); | ||
176 | bfa_tskim_iocdisable_ios(tskim); | ||
177 | bfa_tskim_qcomp(tskim, __bfa_cb_tskim_failed); | ||
178 | break; | ||
179 | |||
180 | default: | ||
181 | bfa_sm_fault(tskim->bfa, event); | ||
182 | } | ||
183 | } | ||
184 | |||
185 | static void | ||
186 | bfa_tskim_sm_iocleanup(struct bfa_tskim_s *tskim, enum bfa_tskim_event event) | ||
187 | { | ||
188 | bfa_trc(tskim->bfa, event); | ||
189 | |||
190 | switch (event) { | ||
191 | case BFA_TSKIM_SM_IOS_DONE: | ||
192 | bfa_sm_set_state(tskim, bfa_tskim_sm_hcb); | ||
193 | bfa_tskim_qcomp(tskim, __bfa_cb_tskim_done); | ||
194 | break; | ||
195 | |||
196 | case BFA_TSKIM_SM_CLEANUP: | ||
197 | /** | ||
198 | * Ignore, TM command completed on wire. | ||
199 | * Notify TM conmpletion on IO cleanup completion. | ||
200 | */ | ||
201 | break; | ||
202 | |||
203 | case BFA_TSKIM_SM_HWFAIL: | ||
204 | bfa_sm_set_state(tskim, bfa_tskim_sm_hcb); | ||
205 | bfa_tskim_iocdisable_ios(tskim); | ||
206 | bfa_tskim_qcomp(tskim, __bfa_cb_tskim_failed); | ||
207 | break; | ||
208 | |||
209 | default: | ||
210 | bfa_sm_fault(tskim->bfa, event); | ||
211 | } | ||
212 | } | ||
213 | |||
214 | /** | ||
215 | * Task management command is waiting for room in request CQ | ||
216 | */ | ||
217 | static void | ||
218 | bfa_tskim_sm_qfull(struct bfa_tskim_s *tskim, enum bfa_tskim_event event) | ||
219 | { | ||
220 | bfa_trc(tskim->bfa, event); | ||
221 | |||
222 | switch (event) { | ||
223 | case BFA_TSKIM_SM_QRESUME: | ||
224 | bfa_sm_set_state(tskim, bfa_tskim_sm_active); | ||
225 | bfa_tskim_send(tskim); | ||
226 | break; | ||
227 | |||
228 | case BFA_TSKIM_SM_CLEANUP: | ||
229 | /** | ||
230 | * No need to send TM on wire since ITN is offline. | ||
231 | */ | ||
232 | bfa_sm_set_state(tskim, bfa_tskim_sm_iocleanup); | ||
233 | bfa_reqq_wcancel(&tskim->reqq_wait); | ||
234 | bfa_tskim_cleanup_ios(tskim); | ||
235 | break; | ||
236 | |||
237 | case BFA_TSKIM_SM_HWFAIL: | ||
238 | bfa_sm_set_state(tskim, bfa_tskim_sm_hcb); | ||
239 | bfa_reqq_wcancel(&tskim->reqq_wait); | ||
240 | bfa_tskim_iocdisable_ios(tskim); | ||
241 | bfa_tskim_qcomp(tskim, __bfa_cb_tskim_failed); | ||
242 | break; | ||
243 | |||
244 | default: | ||
245 | bfa_sm_fault(tskim->bfa, event); | ||
246 | } | ||
247 | } | ||
248 | |||
249 | /** | ||
250 | * Task management command is active, awaiting for room in request CQ | ||
251 | * to send clean up request. | ||
252 | */ | ||
253 | static void | ||
254 | bfa_tskim_sm_cleanup_qfull(struct bfa_tskim_s *tskim, | ||
255 | enum bfa_tskim_event event) | ||
256 | { | ||
257 | bfa_trc(tskim->bfa, event); | ||
258 | |||
259 | switch (event) { | ||
260 | case BFA_TSKIM_SM_DONE: | ||
261 | bfa_reqq_wcancel(&tskim->reqq_wait); | ||
262 | /** | ||
263 | * | ||
264 | * Fall through !!! | ||
265 | */ | ||
266 | |||
267 | case BFA_TSKIM_SM_QRESUME: | ||
268 | bfa_sm_set_state(tskim, bfa_tskim_sm_cleanup); | ||
269 | bfa_tskim_send_abort(tskim); | ||
270 | break; | ||
271 | |||
272 | case BFA_TSKIM_SM_HWFAIL: | ||
273 | bfa_sm_set_state(tskim, bfa_tskim_sm_hcb); | ||
274 | bfa_reqq_wcancel(&tskim->reqq_wait); | ||
275 | bfa_tskim_iocdisable_ios(tskim); | ||
276 | bfa_tskim_qcomp(tskim, __bfa_cb_tskim_failed); | ||
277 | break; | ||
278 | |||
279 | default: | ||
280 | bfa_sm_fault(tskim->bfa, event); | ||
281 | } | ||
282 | } | ||
283 | |||
284 | /** | ||
285 | * BFA callback is pending | ||
286 | */ | ||
287 | static void | ||
288 | bfa_tskim_sm_hcb(struct bfa_tskim_s *tskim, enum bfa_tskim_event event) | ||
289 | { | ||
290 | bfa_trc(tskim->bfa, event); | ||
291 | |||
292 | switch (event) { | ||
293 | case BFA_TSKIM_SM_HCB: | ||
294 | bfa_sm_set_state(tskim, bfa_tskim_sm_uninit); | ||
295 | bfa_tskim_free(tskim); | ||
296 | break; | ||
297 | |||
298 | case BFA_TSKIM_SM_CLEANUP: | ||
299 | bfa_tskim_notify_comp(tskim); | ||
300 | break; | ||
301 | |||
302 | case BFA_TSKIM_SM_HWFAIL: | ||
303 | break; | ||
304 | |||
305 | default: | ||
306 | bfa_sm_fault(tskim->bfa, event); | ||
307 | } | ||
308 | } | ||
309 | |||
310 | |||
311 | |||
312 | /** | ||
313 | * bfa_tskim_private | ||
314 | */ | ||
315 | |||
316 | static void | ||
317 | __bfa_cb_tskim_done(void *cbarg, bfa_boolean_t complete) | ||
318 | { | ||
319 | struct bfa_tskim_s *tskim = cbarg; | ||
320 | |||
321 | if (!complete) { | ||
322 | bfa_sm_send_event(tskim, BFA_TSKIM_SM_HCB); | ||
323 | return; | ||
324 | } | ||
325 | |||
326 | bfa_stats(tskim->itnim, tm_success); | ||
327 | bfa_cb_tskim_done(tskim->bfa->bfad, tskim->dtsk, tskim->tsk_status); | ||
328 | } | ||
329 | |||
330 | static void | ||
331 | __bfa_cb_tskim_failed(void *cbarg, bfa_boolean_t complete) | ||
332 | { | ||
333 | struct bfa_tskim_s *tskim = cbarg; | ||
334 | |||
335 | if (!complete) { | ||
336 | bfa_sm_send_event(tskim, BFA_TSKIM_SM_HCB); | ||
337 | return; | ||
338 | } | ||
339 | |||
340 | bfa_stats(tskim->itnim, tm_failures); | ||
341 | bfa_cb_tskim_done(tskim->bfa->bfad, tskim->dtsk, | ||
342 | BFI_TSKIM_STS_FAILED); | ||
343 | } | ||
344 | |||
345 | static bfa_boolean_t | ||
346 | bfa_tskim_match_scope(struct bfa_tskim_s *tskim, lun_t lun) | ||
347 | { | ||
348 | switch (tskim->tm_cmnd) { | ||
349 | case FCP_TM_TARGET_RESET: | ||
350 | return BFA_TRUE; | ||
351 | |||
352 | case FCP_TM_ABORT_TASK_SET: | ||
353 | case FCP_TM_CLEAR_TASK_SET: | ||
354 | case FCP_TM_LUN_RESET: | ||
355 | case FCP_TM_CLEAR_ACA: | ||
356 | return (tskim->lun == lun); | ||
357 | |||
358 | default: | ||
359 | bfa_assert(0); | ||
360 | } | ||
361 | |||
362 | return BFA_FALSE; | ||
363 | } | ||
364 | |||
365 | /** | ||
366 | * Gather affected IO requests and task management commands. | ||
367 | */ | ||
368 | static void | ||
369 | bfa_tskim_gather_ios(struct bfa_tskim_s *tskim) | ||
370 | { | ||
371 | struct bfa_itnim_s *itnim = tskim->itnim; | ||
372 | struct bfa_ioim_s *ioim; | ||
373 | struct list_head *qe, *qen; | ||
374 | |||
375 | INIT_LIST_HEAD(&tskim->io_q); | ||
376 | |||
377 | /** | ||
378 | * Gather any active IO requests first. | ||
379 | */ | ||
380 | list_for_each_safe(qe, qen, &itnim->io_q) { | ||
381 | ioim = (struct bfa_ioim_s *) qe; | ||
382 | if (bfa_tskim_match_scope | ||
383 | (tskim, bfa_cb_ioim_get_lun(ioim->dio))) { | ||
384 | list_del(&ioim->qe); | ||
385 | list_add_tail(&ioim->qe, &tskim->io_q); | ||
386 | } | ||
387 | } | ||
388 | |||
389 | /** | ||
390 | * Failback any pending IO requests immediately. | ||
391 | */ | ||
392 | list_for_each_safe(qe, qen, &itnim->pending_q) { | ||
393 | ioim = (struct bfa_ioim_s *) qe; | ||
394 | if (bfa_tskim_match_scope | ||
395 | (tskim, bfa_cb_ioim_get_lun(ioim->dio))) { | ||
396 | list_del(&ioim->qe); | ||
397 | list_add_tail(&ioim->qe, &ioim->fcpim->ioim_comp_q); | ||
398 | bfa_ioim_tov(ioim); | ||
399 | } | ||
400 | } | ||
401 | } | ||
402 | |||
403 | /** | ||
404 | * IO cleanup completion | ||
405 | */ | ||
406 | static void | ||
407 | bfa_tskim_cleanp_comp(void *tskim_cbarg) | ||
408 | { | ||
409 | struct bfa_tskim_s *tskim = tskim_cbarg; | ||
410 | |||
411 | bfa_stats(tskim->itnim, tm_io_comps); | ||
412 | bfa_sm_send_event(tskim, BFA_TSKIM_SM_IOS_DONE); | ||
413 | } | ||
414 | |||
415 | /** | ||
416 | * Gather affected IO requests and task management commands. | ||
417 | */ | ||
418 | static void | ||
419 | bfa_tskim_cleanup_ios(struct bfa_tskim_s *tskim) | ||
420 | { | ||
421 | struct bfa_ioim_s *ioim; | ||
422 | struct list_head *qe, *qen; | ||
423 | |||
424 | bfa_wc_init(&tskim->wc, bfa_tskim_cleanp_comp, tskim); | ||
425 | |||
426 | list_for_each_safe(qe, qen, &tskim->io_q) { | ||
427 | ioim = (struct bfa_ioim_s *) qe; | ||
428 | bfa_wc_up(&tskim->wc); | ||
429 | bfa_ioim_cleanup_tm(ioim, tskim); | ||
430 | } | ||
431 | |||
432 | bfa_wc_wait(&tskim->wc); | ||
433 | } | ||
434 | |||
435 | /** | ||
436 | * Send task management request to firmware. | ||
437 | */ | ||
438 | static bfa_boolean_t | ||
439 | bfa_tskim_send(struct bfa_tskim_s *tskim) | ||
440 | { | ||
441 | struct bfa_itnim_s *itnim = tskim->itnim; | ||
442 | struct bfi_tskim_req_s *m; | ||
443 | |||
444 | /** | ||
445 | * check for room in queue to send request now | ||
446 | */ | ||
447 | m = bfa_reqq_next(tskim->bfa, itnim->reqq); | ||
448 | if (!m) | ||
449 | return BFA_FALSE; | ||
450 | |||
451 | /** | ||
452 | * build i/o request message next | ||
453 | */ | ||
454 | bfi_h2i_set(m->mh, BFI_MC_TSKIM, BFI_TSKIM_H2I_TM_REQ, | ||
455 | bfa_lpuid(tskim->bfa)); | ||
456 | |||
457 | m->tsk_tag = bfa_os_htons(tskim->tsk_tag); | ||
458 | m->itn_fhdl = tskim->itnim->rport->fw_handle; | ||
459 | m->t_secs = tskim->tsecs; | ||
460 | m->lun = tskim->lun; | ||
461 | m->tm_flags = tskim->tm_cmnd; | ||
462 | |||
463 | /** | ||
464 | * queue I/O message to firmware | ||
465 | */ | ||
466 | bfa_reqq_produce(tskim->bfa, itnim->reqq); | ||
467 | return BFA_TRUE; | ||
468 | } | ||
469 | |||
470 | /** | ||
471 | * Send abort request to cleanup an active TM to firmware. | ||
472 | */ | ||
473 | static bfa_boolean_t | ||
474 | bfa_tskim_send_abort(struct bfa_tskim_s *tskim) | ||
475 | { | ||
476 | struct bfa_itnim_s *itnim = tskim->itnim; | ||
477 | struct bfi_tskim_abortreq_s *m; | ||
478 | |||
479 | /** | ||
480 | * check for room in queue to send request now | ||
481 | */ | ||
482 | m = bfa_reqq_next(tskim->bfa, itnim->reqq); | ||
483 | if (!m) | ||
484 | return BFA_FALSE; | ||
485 | |||
486 | /** | ||
487 | * build i/o request message next | ||
488 | */ | ||
489 | bfi_h2i_set(m->mh, BFI_MC_TSKIM, BFI_TSKIM_H2I_ABORT_REQ, | ||
490 | bfa_lpuid(tskim->bfa)); | ||
491 | |||
492 | m->tsk_tag = bfa_os_htons(tskim->tsk_tag); | ||
493 | |||
494 | /** | ||
495 | * queue I/O message to firmware | ||
496 | */ | ||
497 | bfa_reqq_produce(tskim->bfa, itnim->reqq); | ||
498 | return BFA_TRUE; | ||
499 | } | ||
500 | |||
501 | /** | ||
502 | * Call to resume task management cmnd waiting for room in request queue. | ||
503 | */ | ||
504 | static void | ||
505 | bfa_tskim_qresume(void *cbarg) | ||
506 | { | ||
507 | struct bfa_tskim_s *tskim = cbarg; | ||
508 | |||
509 | bfa_fcpim_stats(tskim->fcpim, qresumes); | ||
510 | bfa_stats(tskim->itnim, tm_qresumes); | ||
511 | bfa_sm_send_event(tskim, BFA_TSKIM_SM_QRESUME); | ||
512 | } | ||
513 | |||
514 | /** | ||
515 | * Cleanup IOs associated with a task mangement command on IOC failures. | ||
516 | */ | ||
517 | static void | ||
518 | bfa_tskim_iocdisable_ios(struct bfa_tskim_s *tskim) | ||
519 | { | ||
520 | struct bfa_ioim_s *ioim; | ||
521 | struct list_head *qe, *qen; | ||
522 | |||
523 | list_for_each_safe(qe, qen, &tskim->io_q) { | ||
524 | ioim = (struct bfa_ioim_s *) qe; | ||
525 | bfa_ioim_iocdisable(ioim); | ||
526 | } | ||
527 | } | ||
528 | |||
529 | |||
530 | |||
531 | /** | ||
532 | * bfa_tskim_friend | ||
533 | */ | ||
534 | |||
535 | /** | ||
536 | * Notification on completions from related ioim. | ||
537 | */ | ||
538 | void | ||
539 | bfa_tskim_iodone(struct bfa_tskim_s *tskim) | ||
540 | { | ||
541 | bfa_wc_down(&tskim->wc); | ||
542 | } | ||
543 | |||
544 | /** | ||
545 | * Handle IOC h/w failure notification from itnim. | ||
546 | */ | ||
547 | void | ||
548 | bfa_tskim_iocdisable(struct bfa_tskim_s *tskim) | ||
549 | { | ||
550 | tskim->notify = BFA_FALSE; | ||
551 | bfa_stats(tskim->itnim, tm_iocdowns); | ||
552 | bfa_sm_send_event(tskim, BFA_TSKIM_SM_HWFAIL); | ||
553 | } | ||
554 | |||
555 | /** | ||
556 | * Cleanup TM command and associated IOs as part of ITNIM offline. | ||
557 | */ | ||
558 | void | ||
559 | bfa_tskim_cleanup(struct bfa_tskim_s *tskim) | ||
560 | { | ||
561 | tskim->notify = BFA_TRUE; | ||
562 | bfa_stats(tskim->itnim, tm_cleanups); | ||
563 | bfa_sm_send_event(tskim, BFA_TSKIM_SM_CLEANUP); | ||
564 | } | ||
565 | |||
566 | /** | ||
567 | * Memory allocation and initialization. | ||
568 | */ | ||
569 | void | ||
570 | bfa_tskim_attach(struct bfa_fcpim_mod_s *fcpim, struct bfa_meminfo_s *minfo) | ||
571 | { | ||
572 | struct bfa_tskim_s *tskim; | ||
573 | u16 i; | ||
574 | |||
575 | INIT_LIST_HEAD(&fcpim->tskim_free_q); | ||
576 | |||
577 | tskim = (struct bfa_tskim_s *) bfa_meminfo_kva(minfo); | ||
578 | fcpim->tskim_arr = tskim; | ||
579 | |||
580 | for (i = 0; i < fcpim->num_tskim_reqs; i++, tskim++) { | ||
581 | /* | ||
582 | * initialize TSKIM | ||
583 | */ | ||
584 | bfa_os_memset(tskim, 0, sizeof(struct bfa_tskim_s)); | ||
585 | tskim->tsk_tag = i; | ||
586 | tskim->bfa = fcpim->bfa; | ||
587 | tskim->fcpim = fcpim; | ||
588 | tskim->notify = BFA_FALSE; | ||
589 | bfa_reqq_winit(&tskim->reqq_wait, bfa_tskim_qresume, | ||
590 | tskim); | ||
591 | bfa_sm_set_state(tskim, bfa_tskim_sm_uninit); | ||
592 | |||
593 | list_add_tail(&tskim->qe, &fcpim->tskim_free_q); | ||
594 | } | ||
595 | |||
596 | bfa_meminfo_kva(minfo) = (u8 *) tskim; | ||
597 | } | ||
598 | |||
599 | void | ||
600 | bfa_tskim_detach(struct bfa_fcpim_mod_s *fcpim) | ||
601 | { | ||
602 | /** | ||
603 | * @todo | ||
604 | */ | ||
605 | } | ||
606 | |||
607 | void | ||
608 | bfa_tskim_isr(struct bfa_s *bfa, struct bfi_msg_s *m) | ||
609 | { | ||
610 | struct bfa_fcpim_mod_s *fcpim = BFA_FCPIM_MOD(bfa); | ||
611 | struct bfi_tskim_rsp_s *rsp = (struct bfi_tskim_rsp_s *) m; | ||
612 | struct bfa_tskim_s *tskim; | ||
613 | u16 tsk_tag = bfa_os_ntohs(rsp->tsk_tag); | ||
614 | |||
615 | tskim = BFA_TSKIM_FROM_TAG(fcpim, tsk_tag); | ||
616 | bfa_assert(tskim->tsk_tag == tsk_tag); | ||
617 | |||
618 | tskim->tsk_status = rsp->tsk_status; | ||
619 | |||
620 | /** | ||
621 | * Firmware sends BFI_TSKIM_STS_ABORTED status for abort | ||
622 | * requests. All other statuses are for normal completions. | ||
623 | */ | ||
624 | if (rsp->tsk_status == BFI_TSKIM_STS_ABORTED) { | ||
625 | bfa_stats(tskim->itnim, tm_cleanup_comps); | ||
626 | bfa_sm_send_event(tskim, BFA_TSKIM_SM_CLEANUP_DONE); | ||
627 | } else { | ||
628 | bfa_stats(tskim->itnim, tm_fw_rsps); | ||
629 | bfa_sm_send_event(tskim, BFA_TSKIM_SM_DONE); | ||
630 | } | ||
631 | } | ||
632 | |||
633 | |||
634 | |||
635 | /** | ||
636 | * bfa_tskim_api | ||
637 | */ | ||
638 | |||
639 | |||
640 | struct bfa_tskim_s * | ||
641 | bfa_tskim_alloc(struct bfa_s *bfa, struct bfad_tskim_s *dtsk) | ||
642 | { | ||
643 | struct bfa_fcpim_mod_s *fcpim = BFA_FCPIM_MOD(bfa); | ||
644 | struct bfa_tskim_s *tskim; | ||
645 | |||
646 | bfa_q_deq(&fcpim->tskim_free_q, &tskim); | ||
647 | |||
648 | if (!tskim) | ||
649 | bfa_fcpim_stats(fcpim, no_tskims); | ||
650 | else | ||
651 | tskim->dtsk = dtsk; | ||
652 | |||
653 | return tskim; | ||
654 | } | ||
655 | |||
656 | void | ||
657 | bfa_tskim_free(struct bfa_tskim_s *tskim) | ||
658 | { | ||
659 | bfa_assert(bfa_q_is_on_q_func(&tskim->itnim->tsk_q, &tskim->qe)); | ||
660 | list_del(&tskim->qe); | ||
661 | list_add_tail(&tskim->qe, &tskim->fcpim->tskim_free_q); | ||
662 | } | ||
663 | |||
664 | /** | ||
665 | * Start a task management command. | ||
666 | * | ||
667 | * @param[in] tskim BFA task management command instance | ||
668 | * @param[in] itnim i-t nexus for the task management command | ||
669 | * @param[in] lun lun, if applicable | ||
670 | * @param[in] tm_cmnd Task management command code. | ||
671 | * @param[in] t_secs Timeout in seconds | ||
672 | * | ||
673 | * @return None. | ||
674 | */ | ||
675 | void | ||
676 | bfa_tskim_start(struct bfa_tskim_s *tskim, struct bfa_itnim_s *itnim, lun_t lun, | ||
677 | enum fcp_tm_cmnd tm_cmnd, u8 tsecs) | ||
678 | { | ||
679 | tskim->itnim = itnim; | ||
680 | tskim->lun = lun; | ||
681 | tskim->tm_cmnd = tm_cmnd; | ||
682 | tskim->tsecs = tsecs; | ||
683 | tskim->notify = BFA_FALSE; | ||
684 | bfa_stats(itnim, tm_cmnds); | ||
685 | |||
686 | list_add_tail(&tskim->qe, &itnim->tsk_q); | ||
687 | bfa_sm_send_event(tskim, BFA_TSKIM_SM_START); | ||
688 | } | ||
689 | |||
690 | |||