2 * Copyright (c) 2005-2010 Brocade Communications Systems, Inc.
6 * Linux driver for Brocade Fibre Channel Host Bus Adapter.
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
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.
18 #include "bfa_modules.h"
19 #include "bfa_cb_ioim.h"
21 BFA_TRC_FILE(HAL, FCPIM);
25 #define bfa_fcpim_add_iostats(__l, __r, __stats) \
26 (__l->__stats += __r->__stats)
30 * BFA ITNIM Related definitions
32 static void bfa_itnim_update_del_itn_stats(struct bfa_itnim_s *itnim);
34 #define BFA_ITNIM_FROM_TAG(_fcpim, _tag) \
35 (((_fcpim)->itnim_arr + ((_tag) & ((_fcpim)->num_itnims - 1))))
37 #define bfa_fcpim_additn(__itnim) \
38 list_add_tail(&(__itnim)->qe, &(__itnim)->fcpim->itnim_q)
39 #define bfa_fcpim_delitn(__itnim) do { \
40 bfa_assert(bfa_q_is_on_q(&(__itnim)->fcpim->itnim_q, __itnim)); \
41 bfa_itnim_update_del_itn_stats(__itnim); \
42 list_del(&(__itnim)->qe); \
43 bfa_assert(list_empty(&(__itnim)->io_q)); \
44 bfa_assert(list_empty(&(__itnim)->io_cleanup_q)); \
45 bfa_assert(list_empty(&(__itnim)->pending_q)); \
48 #define bfa_itnim_online_cb(__itnim) do { \
49 if ((__itnim)->bfa->fcs) \
50 bfa_cb_itnim_online((__itnim)->ditn); \
52 bfa_cb_queue((__itnim)->bfa, &(__itnim)->hcb_qe, \
53 __bfa_cb_itnim_online, (__itnim)); \
57 #define bfa_itnim_offline_cb(__itnim) do { \
58 if ((__itnim)->bfa->fcs) \
59 bfa_cb_itnim_offline((__itnim)->ditn); \
61 bfa_cb_queue((__itnim)->bfa, &(__itnim)->hcb_qe, \
62 __bfa_cb_itnim_offline, (__itnim)); \
66 #define bfa_itnim_sler_cb(__itnim) do { \
67 if ((__itnim)->bfa->fcs) \
68 bfa_cb_itnim_sler((__itnim)->ditn); \
70 bfa_cb_queue((__itnim)->bfa, &(__itnim)->hcb_qe, \
71 __bfa_cb_itnim_sler, (__itnim)); \
76 * bfa_itnim_sm BFA itnim state machine
80 enum bfa_itnim_event {
81 BFA_ITNIM_SM_CREATE = 1, /* itnim is created */
82 BFA_ITNIM_SM_ONLINE = 2, /* itnim is online */
83 BFA_ITNIM_SM_OFFLINE = 3, /* itnim is offline */
84 BFA_ITNIM_SM_FWRSP = 4, /* firmware response */
85 BFA_ITNIM_SM_DELETE = 5, /* deleting an existing itnim */
86 BFA_ITNIM_SM_CLEANUP = 6, /* IO cleanup completion */
87 BFA_ITNIM_SM_SLER = 7, /* second level error recovery */
88 BFA_ITNIM_SM_HWFAIL = 8, /* IOC h/w failure event */
89 BFA_ITNIM_SM_QRESUME = 9, /* queue space available */
93 * BFA IOIM related definitions
95 #define bfa_ioim_move_to_comp_q(__ioim) do { \
96 list_del(&(__ioim)->qe); \
97 list_add_tail(&(__ioim)->qe, &(__ioim)->fcpim->ioim_comp_q); \
101 #define bfa_ioim_cb_profile_comp(__fcpim, __ioim) do { \
102 if ((__fcpim)->profile_comp) \
103 (__fcpim)->profile_comp(__ioim); \
106 #define bfa_ioim_cb_profile_start(__fcpim, __ioim) do { \
107 if ((__fcpim)->profile_start) \
108 (__fcpim)->profile_start(__ioim); \
115 * IO state machine events
117 enum bfa_ioim_event {
118 BFA_IOIM_SM_START = 1, /* io start request from host */
119 BFA_IOIM_SM_COMP_GOOD = 2, /* io good comp, resource free */
120 BFA_IOIM_SM_COMP = 3, /* io comp, resource is free */
121 BFA_IOIM_SM_COMP_UTAG = 4, /* io comp, resource is free */
122 BFA_IOIM_SM_DONE = 5, /* io comp, resource not free */
123 BFA_IOIM_SM_FREE = 6, /* io resource is freed */
124 BFA_IOIM_SM_ABORT = 7, /* abort request from scsi stack */
125 BFA_IOIM_SM_ABORT_COMP = 8, /* abort from f/w */
126 BFA_IOIM_SM_ABORT_DONE = 9, /* abort completion from f/w */
127 BFA_IOIM_SM_QRESUME = 10, /* CQ space available to queue IO */
128 BFA_IOIM_SM_SGALLOCED = 11, /* SG page allocation successful */
129 BFA_IOIM_SM_SQRETRY = 12, /* sequence recovery retry */
130 BFA_IOIM_SM_HCB = 13, /* bfa callback complete */
131 BFA_IOIM_SM_CLEANUP = 14, /* IO cleanup from itnim */
132 BFA_IOIM_SM_TMSTART = 15, /* IO cleanup from tskim */
133 BFA_IOIM_SM_TMDONE = 16, /* IO cleanup from tskim */
134 BFA_IOIM_SM_HWFAIL = 17, /* IOC h/w failure event */
135 BFA_IOIM_SM_IOTOV = 18, /* ITN offline TOV */
140 * BFA TSKIM related definitions
144 * task management completion handling
146 #define bfa_tskim_qcomp(__tskim, __cbfn) do { \
147 bfa_cb_queue((__tskim)->bfa, &(__tskim)->hcb_qe, __cbfn, (__tskim));\
148 bfa_tskim_notify_comp(__tskim); \
151 #define bfa_tskim_notify_comp(__tskim) do { \
152 if ((__tskim)->notify) \
153 bfa_itnim_tskdone((__tskim)->itnim); \
157 enum bfa_tskim_event {
158 BFA_TSKIM_SM_START = 1, /* TM command start */
159 BFA_TSKIM_SM_DONE = 2, /* TM completion */
160 BFA_TSKIM_SM_QRESUME = 3, /* resume after qfull */
161 BFA_TSKIM_SM_HWFAIL = 5, /* IOC h/w failure event */
162 BFA_TSKIM_SM_HCB = 6, /* BFA callback completion */
163 BFA_TSKIM_SM_IOS_DONE = 7, /* IO and sub TM completions */
164 BFA_TSKIM_SM_CLEANUP = 8, /* TM cleanup on ITN offline */
165 BFA_TSKIM_SM_CLEANUP_DONE = 9, /* TM abort completion */
169 * forward declaration for BFA ITNIM functions
171 static void bfa_itnim_iocdisable_cleanup(struct bfa_itnim_s *itnim);
172 static bfa_boolean_t bfa_itnim_send_fwcreate(struct bfa_itnim_s *itnim);
173 static bfa_boolean_t bfa_itnim_send_fwdelete(struct bfa_itnim_s *itnim);
174 static void bfa_itnim_cleanp_comp(void *itnim_cbarg);
175 static void bfa_itnim_cleanup(struct bfa_itnim_s *itnim);
176 static void __bfa_cb_itnim_online(void *cbarg, bfa_boolean_t complete);
177 static void __bfa_cb_itnim_offline(void *cbarg, bfa_boolean_t complete);
178 static void __bfa_cb_itnim_sler(void *cbarg, bfa_boolean_t complete);
179 static void bfa_itnim_iotov_online(struct bfa_itnim_s *itnim);
180 static void bfa_itnim_iotov_cleanup(struct bfa_itnim_s *itnim);
181 static void bfa_itnim_iotov(void *itnim_arg);
182 static void bfa_itnim_iotov_start(struct bfa_itnim_s *itnim);
183 static void bfa_itnim_iotov_stop(struct bfa_itnim_s *itnim);
184 static void bfa_itnim_iotov_delete(struct bfa_itnim_s *itnim);
187 * forward declaration of ITNIM state machine
189 static void bfa_itnim_sm_uninit(struct bfa_itnim_s *itnim,
190 enum bfa_itnim_event event);
191 static void bfa_itnim_sm_created(struct bfa_itnim_s *itnim,
192 enum bfa_itnim_event event);
193 static void bfa_itnim_sm_fwcreate(struct bfa_itnim_s *itnim,
194 enum bfa_itnim_event event);
195 static void bfa_itnim_sm_delete_pending(struct bfa_itnim_s *itnim,
196 enum bfa_itnim_event event);
197 static void bfa_itnim_sm_online(struct bfa_itnim_s *itnim,
198 enum bfa_itnim_event event);
199 static void bfa_itnim_sm_sler(struct bfa_itnim_s *itnim,
200 enum bfa_itnim_event event);
201 static void bfa_itnim_sm_cleanup_offline(struct bfa_itnim_s *itnim,
202 enum bfa_itnim_event event);
203 static void bfa_itnim_sm_cleanup_delete(struct bfa_itnim_s *itnim,
204 enum bfa_itnim_event event);
205 static void bfa_itnim_sm_fwdelete(struct bfa_itnim_s *itnim,
206 enum bfa_itnim_event event);
207 static void bfa_itnim_sm_offline(struct bfa_itnim_s *itnim,
208 enum bfa_itnim_event event);
209 static void bfa_itnim_sm_iocdisable(struct bfa_itnim_s *itnim,
210 enum bfa_itnim_event event);
211 static void bfa_itnim_sm_deleting(struct bfa_itnim_s *itnim,
212 enum bfa_itnim_event event);
213 static void bfa_itnim_sm_fwcreate_qfull(struct bfa_itnim_s *itnim,
214 enum bfa_itnim_event event);
215 static void bfa_itnim_sm_fwdelete_qfull(struct bfa_itnim_s *itnim,
216 enum bfa_itnim_event event);
217 static void bfa_itnim_sm_deleting_qfull(struct bfa_itnim_s *itnim,
218 enum bfa_itnim_event event);
221 * forward declaration for BFA IOIM functions
223 static bfa_boolean_t bfa_ioim_send_ioreq(struct bfa_ioim_s *ioim);
224 static bfa_boolean_t bfa_ioim_sge_setup(struct bfa_ioim_s *ioim);
225 static void bfa_ioim_sgpg_setup(struct bfa_ioim_s *ioim);
226 static bfa_boolean_t bfa_ioim_send_abort(struct bfa_ioim_s *ioim);
227 static void bfa_ioim_notify_cleanup(struct bfa_ioim_s *ioim);
228 static void __bfa_cb_ioim_good_comp(void *cbarg, bfa_boolean_t complete);
229 static void __bfa_cb_ioim_comp(void *cbarg, bfa_boolean_t complete);
230 static void __bfa_cb_ioim_abort(void *cbarg, bfa_boolean_t complete);
231 static void __bfa_cb_ioim_failed(void *cbarg, bfa_boolean_t complete);
232 static void __bfa_cb_ioim_pathtov(void *cbarg, bfa_boolean_t complete);
233 static bfa_boolean_t bfa_ioim_is_abortable(struct bfa_ioim_s *ioim);
237 * forward declaration of BFA IO state machine
239 static void bfa_ioim_sm_uninit(struct bfa_ioim_s *ioim,
240 enum bfa_ioim_event event);
241 static void bfa_ioim_sm_sgalloc(struct bfa_ioim_s *ioim,
242 enum bfa_ioim_event event);
243 static void bfa_ioim_sm_active(struct bfa_ioim_s *ioim,
244 enum bfa_ioim_event event);
245 static void bfa_ioim_sm_abort(struct bfa_ioim_s *ioim,
246 enum bfa_ioim_event event);
247 static void bfa_ioim_sm_cleanup(struct bfa_ioim_s *ioim,
248 enum bfa_ioim_event event);
249 static void bfa_ioim_sm_qfull(struct bfa_ioim_s *ioim,
250 enum bfa_ioim_event event);
251 static void bfa_ioim_sm_abort_qfull(struct bfa_ioim_s *ioim,
252 enum bfa_ioim_event event);
253 static void bfa_ioim_sm_cleanup_qfull(struct bfa_ioim_s *ioim,
254 enum bfa_ioim_event event);
255 static void bfa_ioim_sm_hcb(struct bfa_ioim_s *ioim,
256 enum bfa_ioim_event event);
257 static void bfa_ioim_sm_hcb_free(struct bfa_ioim_s *ioim,
258 enum bfa_ioim_event event);
259 static void bfa_ioim_sm_resfree(struct bfa_ioim_s *ioim,
260 enum bfa_ioim_event event);
261 static void bfa_ioim_sm_cmnd_retry(struct bfa_ioim_s *ioim,
262 enum bfa_ioim_event event);
265 * forward declaration for BFA TSKIM functions
267 static void __bfa_cb_tskim_done(void *cbarg, bfa_boolean_t complete);
268 static void __bfa_cb_tskim_failed(void *cbarg, bfa_boolean_t complete);
269 static bfa_boolean_t bfa_tskim_match_scope(struct bfa_tskim_s *tskim,
271 static void bfa_tskim_gather_ios(struct bfa_tskim_s *tskim);
272 static void bfa_tskim_cleanp_comp(void *tskim_cbarg);
273 static void bfa_tskim_cleanup_ios(struct bfa_tskim_s *tskim);
274 static bfa_boolean_t bfa_tskim_send(struct bfa_tskim_s *tskim);
275 static bfa_boolean_t bfa_tskim_send_abort(struct bfa_tskim_s *tskim);
276 static void bfa_tskim_iocdisable_ios(struct bfa_tskim_s *tskim);
280 * forward declaration of BFA TSKIM state machine
282 static void bfa_tskim_sm_uninit(struct bfa_tskim_s *tskim,
283 enum bfa_tskim_event event);
284 static void bfa_tskim_sm_active(struct bfa_tskim_s *tskim,
285 enum bfa_tskim_event event);
286 static void bfa_tskim_sm_cleanup(struct bfa_tskim_s *tskim,
287 enum bfa_tskim_event event);
288 static void bfa_tskim_sm_iocleanup(struct bfa_tskim_s *tskim,
289 enum bfa_tskim_event event);
290 static void bfa_tskim_sm_qfull(struct bfa_tskim_s *tskim,
291 enum bfa_tskim_event event);
292 static void bfa_tskim_sm_cleanup_qfull(struct bfa_tskim_s *tskim,
293 enum bfa_tskim_event event);
294 static void bfa_tskim_sm_hcb(struct bfa_tskim_s *tskim,
295 enum bfa_tskim_event event);
298 * hal_fcpim_mod BFA FCP Initiator Mode module
302 * Compute and return memory needed by FCP(im) module.
305 bfa_fcpim_meminfo(struct bfa_iocfc_cfg_s *cfg, u32 *km_len,
308 bfa_itnim_meminfo(cfg, km_len, dm_len);
313 if (cfg->fwcfg.num_ioim_reqs < BFA_IOIM_MIN)
314 cfg->fwcfg.num_ioim_reqs = BFA_IOIM_MIN;
315 else if (cfg->fwcfg.num_ioim_reqs > BFA_IOIM_MAX)
316 cfg->fwcfg.num_ioim_reqs = BFA_IOIM_MAX;
318 *km_len += cfg->fwcfg.num_ioim_reqs *
319 (sizeof(struct bfa_ioim_s) + sizeof(struct bfa_ioim_sp_s));
321 *dm_len += cfg->fwcfg.num_ioim_reqs * BFI_IOIM_SNSLEN;
324 * task management command memory
326 if (cfg->fwcfg.num_tskim_reqs < BFA_TSKIM_MIN)
327 cfg->fwcfg.num_tskim_reqs = BFA_TSKIM_MIN;
328 *km_len += cfg->fwcfg.num_tskim_reqs * sizeof(struct bfa_tskim_s);
333 bfa_fcpim_attach(struct bfa_s *bfa, void *bfad, struct bfa_iocfc_cfg_s *cfg,
334 struct bfa_meminfo_s *meminfo, struct bfa_pcidev_s *pcidev)
336 struct bfa_fcpim_mod_s *fcpim = BFA_FCPIM_MOD(bfa);
338 bfa_trc(bfa, cfg->drvcfg.path_tov);
339 bfa_trc(bfa, cfg->fwcfg.num_rports);
340 bfa_trc(bfa, cfg->fwcfg.num_ioim_reqs);
341 bfa_trc(bfa, cfg->fwcfg.num_tskim_reqs);
344 fcpim->num_itnims = cfg->fwcfg.num_rports;
345 fcpim->num_ioim_reqs = cfg->fwcfg.num_ioim_reqs;
346 fcpim->num_tskim_reqs = cfg->fwcfg.num_tskim_reqs;
347 fcpim->path_tov = cfg->drvcfg.path_tov;
348 fcpim->delay_comp = cfg->drvcfg.delay_comp;
349 fcpim->profile_comp = NULL;
350 fcpim->profile_start = NULL;
352 bfa_itnim_attach(fcpim, meminfo);
353 bfa_tskim_attach(fcpim, meminfo);
354 bfa_ioim_attach(fcpim, meminfo);
358 bfa_fcpim_detach(struct bfa_s *bfa)
360 struct bfa_fcpim_mod_s *fcpim = BFA_FCPIM_MOD(bfa);
362 bfa_ioim_detach(fcpim);
363 bfa_tskim_detach(fcpim);
367 bfa_fcpim_start(struct bfa_s *bfa)
372 bfa_fcpim_stop(struct bfa_s *bfa)
377 bfa_fcpim_iocdisable(struct bfa_s *bfa)
379 struct bfa_fcpim_mod_s *fcpim = BFA_FCPIM_MOD(bfa);
380 struct bfa_itnim_s *itnim;
381 struct list_head *qe, *qen;
383 list_for_each_safe(qe, qen, &fcpim->itnim_q) {
384 itnim = (struct bfa_itnim_s *) qe;
385 bfa_itnim_iocdisable(itnim);
390 bfa_fcpim_add_stats(struct bfa_itnim_iostats_s *lstats,
391 struct bfa_itnim_iostats_s *rstats)
393 bfa_fcpim_add_iostats(lstats, rstats, total_ios);
394 bfa_fcpim_add_iostats(lstats, rstats, qresumes);
395 bfa_fcpim_add_iostats(lstats, rstats, no_iotags);
396 bfa_fcpim_add_iostats(lstats, rstats, io_aborts);
397 bfa_fcpim_add_iostats(lstats, rstats, no_tskims);
398 bfa_fcpim_add_iostats(lstats, rstats, iocomp_ok);
399 bfa_fcpim_add_iostats(lstats, rstats, iocomp_underrun);
400 bfa_fcpim_add_iostats(lstats, rstats, iocomp_overrun);
401 bfa_fcpim_add_iostats(lstats, rstats, iocomp_aborted);
402 bfa_fcpim_add_iostats(lstats, rstats, iocomp_timedout);
403 bfa_fcpim_add_iostats(lstats, rstats, iocom_nexus_abort);
404 bfa_fcpim_add_iostats(lstats, rstats, iocom_proto_err);
405 bfa_fcpim_add_iostats(lstats, rstats, iocom_dif_err);
406 bfa_fcpim_add_iostats(lstats, rstats, iocom_sqer_needed);
407 bfa_fcpim_add_iostats(lstats, rstats, iocom_res_free);
408 bfa_fcpim_add_iostats(lstats, rstats, iocom_hostabrts);
409 bfa_fcpim_add_iostats(lstats, rstats, iocom_utags);
410 bfa_fcpim_add_iostats(lstats, rstats, io_cleanups);
411 bfa_fcpim_add_iostats(lstats, rstats, io_tmaborts);
412 bfa_fcpim_add_iostats(lstats, rstats, onlines);
413 bfa_fcpim_add_iostats(lstats, rstats, offlines);
414 bfa_fcpim_add_iostats(lstats, rstats, creates);
415 bfa_fcpim_add_iostats(lstats, rstats, deletes);
416 bfa_fcpim_add_iostats(lstats, rstats, create_comps);
417 bfa_fcpim_add_iostats(lstats, rstats, delete_comps);
418 bfa_fcpim_add_iostats(lstats, rstats, sler_events);
419 bfa_fcpim_add_iostats(lstats, rstats, fw_create);
420 bfa_fcpim_add_iostats(lstats, rstats, fw_delete);
421 bfa_fcpim_add_iostats(lstats, rstats, ioc_disabled);
422 bfa_fcpim_add_iostats(lstats, rstats, cleanup_comps);
423 bfa_fcpim_add_iostats(lstats, rstats, tm_cmnds);
424 bfa_fcpim_add_iostats(lstats, rstats, tm_fw_rsps);
425 bfa_fcpim_add_iostats(lstats, rstats, tm_success);
426 bfa_fcpim_add_iostats(lstats, rstats, tm_failures);
427 bfa_fcpim_add_iostats(lstats, rstats, tm_io_comps);
428 bfa_fcpim_add_iostats(lstats, rstats, tm_qresumes);
429 bfa_fcpim_add_iostats(lstats, rstats, tm_iocdowns);
430 bfa_fcpim_add_iostats(lstats, rstats, tm_cleanups);
431 bfa_fcpim_add_iostats(lstats, rstats, tm_cleanup_comps);
432 bfa_fcpim_add_iostats(lstats, rstats, io_comps);
433 bfa_fcpim_add_iostats(lstats, rstats, input_reqs);
434 bfa_fcpim_add_iostats(lstats, rstats, output_reqs);
435 bfa_fcpim_add_iostats(lstats, rstats, rd_throughput);
436 bfa_fcpim_add_iostats(lstats, rstats, wr_throughput);
440 bfa_fcpim_path_tov_set(struct bfa_s *bfa, u16 path_tov)
442 struct bfa_fcpim_mod_s *fcpim = BFA_FCPIM_MOD(bfa);
444 fcpim->path_tov = path_tov * 1000;
445 if (fcpim->path_tov > BFA_FCPIM_PATHTOV_MAX)
446 fcpim->path_tov = BFA_FCPIM_PATHTOV_MAX;
450 bfa_fcpim_path_tov_get(struct bfa_s *bfa)
452 struct bfa_fcpim_mod_s *fcpim = BFA_FCPIM_MOD(bfa);
454 return fcpim->path_tov / 1000;
458 bfa_fcpim_port_iostats(struct bfa_s *bfa, struct bfa_itnim_iostats_s *stats,
461 struct bfa_fcpim_mod_s *fcpim = BFA_FCPIM_MOD(bfa);
462 struct list_head *qe, *qen;
463 struct bfa_itnim_s *itnim;
465 /* accumulate IO stats from itnim */
466 bfa_os_memset(stats, 0, sizeof(struct bfa_itnim_iostats_s));
467 list_for_each_safe(qe, qen, &fcpim->itnim_q) {
468 itnim = (struct bfa_itnim_s *) qe;
469 if (itnim->rport->rport_info.lp_tag != lp_tag)
471 bfa_fcpim_add_stats(stats, &(itnim->stats));
473 return BFA_STATUS_OK;
476 bfa_fcpim_get_modstats(struct bfa_s *bfa, struct bfa_itnim_iostats_s *modstats)
478 struct bfa_fcpim_mod_s *fcpim = BFA_FCPIM_MOD(bfa);
479 struct list_head *qe, *qen;
480 struct bfa_itnim_s *itnim;
482 /* accumulate IO stats from itnim */
483 bfa_os_memset(modstats, 0, sizeof(struct bfa_itnim_iostats_s));
484 list_for_each_safe(qe, qen, &fcpim->itnim_q) {
485 itnim = (struct bfa_itnim_s *) qe;
486 bfa_fcpim_add_stats(modstats, &(itnim->stats));
488 return BFA_STATUS_OK;
492 bfa_fcpim_get_del_itn_stats(struct bfa_s *bfa,
493 struct bfa_fcpim_del_itn_stats_s *modstats)
495 struct bfa_fcpim_mod_s *fcpim = BFA_FCPIM_MOD(bfa);
497 *modstats = fcpim->del_itn_stats;
499 return BFA_STATUS_OK;
504 bfa_fcpim_profile_on(struct bfa_s *bfa, u32 time)
506 struct bfa_itnim_s *itnim;
507 struct bfa_fcpim_mod_s *fcpim = BFA_FCPIM_MOD(bfa);
508 struct list_head *qe, *qen;
510 /* accumulate IO stats from itnim */
511 list_for_each_safe(qe, qen, &fcpim->itnim_q) {
512 itnim = (struct bfa_itnim_s *) qe;
513 bfa_itnim_clear_stats(itnim);
515 fcpim->io_profile = BFA_TRUE;
516 fcpim->io_profile_start_time = time;
517 fcpim->profile_comp = bfa_ioim_profile_comp;
518 fcpim->profile_start = bfa_ioim_profile_start;
520 return BFA_STATUS_OK;
523 bfa_fcpim_profile_off(struct bfa_s *bfa)
525 struct bfa_fcpim_mod_s *fcpim = BFA_FCPIM_MOD(bfa);
526 fcpim->io_profile = BFA_FALSE;
527 fcpim->io_profile_start_time = 0;
528 fcpim->profile_comp = NULL;
529 fcpim->profile_start = NULL;
530 return BFA_STATUS_OK;
534 bfa_fcpim_port_clear_iostats(struct bfa_s *bfa, u8 lp_tag)
536 struct bfa_fcpim_mod_s *fcpim = BFA_FCPIM_MOD(bfa);
537 struct list_head *qe, *qen;
538 struct bfa_itnim_s *itnim;
540 /* clear IO stats from all active itnims */
541 list_for_each_safe(qe, qen, &fcpim->itnim_q) {
542 itnim = (struct bfa_itnim_s *) qe;
543 if (itnim->rport->rport_info.lp_tag != lp_tag)
545 bfa_itnim_clear_stats(itnim);
547 return BFA_STATUS_OK;
552 bfa_fcpim_clr_modstats(struct bfa_s *bfa)
554 struct bfa_fcpim_mod_s *fcpim = BFA_FCPIM_MOD(bfa);
555 struct list_head *qe, *qen;
556 struct bfa_itnim_s *itnim;
558 /* clear IO stats from all active itnims */
559 list_for_each_safe(qe, qen, &fcpim->itnim_q) {
560 itnim = (struct bfa_itnim_s *) qe;
561 bfa_itnim_clear_stats(itnim);
563 bfa_os_memset(&fcpim->del_itn_stats, 0,
564 sizeof(struct bfa_fcpim_del_itn_stats_s));
566 return BFA_STATUS_OK;
570 bfa_fcpim_qdepth_set(struct bfa_s *bfa, u16 q_depth)
572 struct bfa_fcpim_mod_s *fcpim = BFA_FCPIM_MOD(bfa);
574 bfa_assert(q_depth <= BFA_IOCFC_QDEPTH_MAX);
576 fcpim->q_depth = q_depth;
580 bfa_fcpim_qdepth_get(struct bfa_s *bfa)
582 struct bfa_fcpim_mod_s *fcpim = BFA_FCPIM_MOD(bfa);
584 return fcpim->q_depth;
588 bfa_fcpim_update_ioredirect(struct bfa_s *bfa)
590 bfa_boolean_t ioredirect;
593 * IO redirection is turned off when QoS is enabled and vice versa
595 ioredirect = bfa_fcport_is_qos_enabled(bfa) ? BFA_FALSE : BFA_TRUE;
599 bfa_fcpim_set_ioredirect(struct bfa_s *bfa, bfa_boolean_t state)
601 struct bfa_fcpim_mod_s *fcpim = BFA_FCPIM_MOD(bfa);
602 fcpim->ioredirect = state;
608 * BFA ITNIM module state machine functions
612 * Beginning/unallocated state - no events expected.
615 bfa_itnim_sm_uninit(struct bfa_itnim_s *itnim, enum bfa_itnim_event event)
617 bfa_trc(itnim->bfa, itnim->rport->rport_tag);
618 bfa_trc(itnim->bfa, event);
621 case BFA_ITNIM_SM_CREATE:
622 bfa_sm_set_state(itnim, bfa_itnim_sm_created);
623 itnim->is_online = BFA_FALSE;
624 bfa_fcpim_additn(itnim);
628 bfa_sm_fault(itnim->bfa, event);
633 * Beginning state, only online event expected.
636 bfa_itnim_sm_created(struct bfa_itnim_s *itnim, enum bfa_itnim_event event)
638 bfa_trc(itnim->bfa, itnim->rport->rport_tag);
639 bfa_trc(itnim->bfa, event);
642 case BFA_ITNIM_SM_ONLINE:
643 if (bfa_itnim_send_fwcreate(itnim))
644 bfa_sm_set_state(itnim, bfa_itnim_sm_fwcreate);
646 bfa_sm_set_state(itnim, bfa_itnim_sm_fwcreate_qfull);
649 case BFA_ITNIM_SM_DELETE:
650 bfa_sm_set_state(itnim, bfa_itnim_sm_uninit);
651 bfa_fcpim_delitn(itnim);
654 case BFA_ITNIM_SM_HWFAIL:
655 bfa_sm_set_state(itnim, bfa_itnim_sm_iocdisable);
659 bfa_sm_fault(itnim->bfa, event);
664 * Waiting for itnim create response from firmware.
667 bfa_itnim_sm_fwcreate(struct bfa_itnim_s *itnim, enum bfa_itnim_event event)
669 bfa_trc(itnim->bfa, itnim->rport->rport_tag);
670 bfa_trc(itnim->bfa, event);
673 case BFA_ITNIM_SM_FWRSP:
674 bfa_sm_set_state(itnim, bfa_itnim_sm_online);
675 itnim->is_online = BFA_TRUE;
676 bfa_itnim_iotov_online(itnim);
677 bfa_itnim_online_cb(itnim);
680 case BFA_ITNIM_SM_DELETE:
681 bfa_sm_set_state(itnim, bfa_itnim_sm_delete_pending);
684 case BFA_ITNIM_SM_OFFLINE:
685 if (bfa_itnim_send_fwdelete(itnim))
686 bfa_sm_set_state(itnim, bfa_itnim_sm_fwdelete);
688 bfa_sm_set_state(itnim, bfa_itnim_sm_fwdelete_qfull);
691 case BFA_ITNIM_SM_HWFAIL:
692 bfa_sm_set_state(itnim, bfa_itnim_sm_iocdisable);
696 bfa_sm_fault(itnim->bfa, event);
701 bfa_itnim_sm_fwcreate_qfull(struct bfa_itnim_s *itnim,
702 enum bfa_itnim_event event)
704 bfa_trc(itnim->bfa, itnim->rport->rport_tag);
705 bfa_trc(itnim->bfa, event);
708 case BFA_ITNIM_SM_QRESUME:
709 bfa_sm_set_state(itnim, bfa_itnim_sm_fwcreate);
710 bfa_itnim_send_fwcreate(itnim);
713 case BFA_ITNIM_SM_DELETE:
714 bfa_sm_set_state(itnim, bfa_itnim_sm_uninit);
715 bfa_reqq_wcancel(&itnim->reqq_wait);
716 bfa_fcpim_delitn(itnim);
719 case BFA_ITNIM_SM_OFFLINE:
720 bfa_sm_set_state(itnim, bfa_itnim_sm_offline);
721 bfa_reqq_wcancel(&itnim->reqq_wait);
722 bfa_itnim_offline_cb(itnim);
725 case BFA_ITNIM_SM_HWFAIL:
726 bfa_sm_set_state(itnim, bfa_itnim_sm_iocdisable);
727 bfa_reqq_wcancel(&itnim->reqq_wait);
731 bfa_sm_fault(itnim->bfa, event);
736 * Waiting for itnim create response from firmware, a delete is pending.
739 bfa_itnim_sm_delete_pending(struct bfa_itnim_s *itnim,
740 enum bfa_itnim_event event)
742 bfa_trc(itnim->bfa, itnim->rport->rport_tag);
743 bfa_trc(itnim->bfa, event);
746 case BFA_ITNIM_SM_FWRSP:
747 if (bfa_itnim_send_fwdelete(itnim))
748 bfa_sm_set_state(itnim, bfa_itnim_sm_deleting);
750 bfa_sm_set_state(itnim, bfa_itnim_sm_deleting_qfull);
753 case BFA_ITNIM_SM_HWFAIL:
754 bfa_sm_set_state(itnim, bfa_itnim_sm_uninit);
755 bfa_fcpim_delitn(itnim);
759 bfa_sm_fault(itnim->bfa, event);
764 * Online state - normal parking state.
767 bfa_itnim_sm_online(struct bfa_itnim_s *itnim, enum bfa_itnim_event event)
769 bfa_trc(itnim->bfa, itnim->rport->rport_tag);
770 bfa_trc(itnim->bfa, event);
773 case BFA_ITNIM_SM_OFFLINE:
774 bfa_sm_set_state(itnim, bfa_itnim_sm_cleanup_offline);
775 itnim->is_online = BFA_FALSE;
776 bfa_itnim_iotov_start(itnim);
777 bfa_itnim_cleanup(itnim);
780 case BFA_ITNIM_SM_DELETE:
781 bfa_sm_set_state(itnim, bfa_itnim_sm_cleanup_delete);
782 itnim->is_online = BFA_FALSE;
783 bfa_itnim_cleanup(itnim);
786 case BFA_ITNIM_SM_SLER:
787 bfa_sm_set_state(itnim, bfa_itnim_sm_sler);
788 itnim->is_online = BFA_FALSE;
789 bfa_itnim_iotov_start(itnim);
790 bfa_itnim_sler_cb(itnim);
793 case BFA_ITNIM_SM_HWFAIL:
794 bfa_sm_set_state(itnim, bfa_itnim_sm_iocdisable);
795 itnim->is_online = BFA_FALSE;
796 bfa_itnim_iotov_start(itnim);
797 bfa_itnim_iocdisable_cleanup(itnim);
801 bfa_sm_fault(itnim->bfa, event);
806 * Second level error recovery need.
809 bfa_itnim_sm_sler(struct bfa_itnim_s *itnim, enum bfa_itnim_event event)
811 bfa_trc(itnim->bfa, itnim->rport->rport_tag);
812 bfa_trc(itnim->bfa, event);
815 case BFA_ITNIM_SM_OFFLINE:
816 bfa_sm_set_state(itnim, bfa_itnim_sm_cleanup_offline);
817 bfa_itnim_cleanup(itnim);
820 case BFA_ITNIM_SM_DELETE:
821 bfa_sm_set_state(itnim, bfa_itnim_sm_cleanup_delete);
822 bfa_itnim_cleanup(itnim);
823 bfa_itnim_iotov_delete(itnim);
826 case BFA_ITNIM_SM_HWFAIL:
827 bfa_sm_set_state(itnim, bfa_itnim_sm_iocdisable);
828 bfa_itnim_iocdisable_cleanup(itnim);
832 bfa_sm_fault(itnim->bfa, event);
837 * Going offline. Waiting for active IO cleanup.
840 bfa_itnim_sm_cleanup_offline(struct bfa_itnim_s *itnim,
841 enum bfa_itnim_event event)
843 bfa_trc(itnim->bfa, itnim->rport->rport_tag);
844 bfa_trc(itnim->bfa, event);
847 case BFA_ITNIM_SM_CLEANUP:
848 if (bfa_itnim_send_fwdelete(itnim))
849 bfa_sm_set_state(itnim, bfa_itnim_sm_fwdelete);
851 bfa_sm_set_state(itnim, bfa_itnim_sm_fwdelete_qfull);
854 case BFA_ITNIM_SM_DELETE:
855 bfa_sm_set_state(itnim, bfa_itnim_sm_cleanup_delete);
856 bfa_itnim_iotov_delete(itnim);
859 case BFA_ITNIM_SM_HWFAIL:
860 bfa_sm_set_state(itnim, bfa_itnim_sm_iocdisable);
861 bfa_itnim_iocdisable_cleanup(itnim);
862 bfa_itnim_offline_cb(itnim);
865 case BFA_ITNIM_SM_SLER:
869 bfa_sm_fault(itnim->bfa, event);
874 * Deleting itnim. Waiting for active IO cleanup.
877 bfa_itnim_sm_cleanup_delete(struct bfa_itnim_s *itnim,
878 enum bfa_itnim_event event)
880 bfa_trc(itnim->bfa, itnim->rport->rport_tag);
881 bfa_trc(itnim->bfa, event);
884 case BFA_ITNIM_SM_CLEANUP:
885 if (bfa_itnim_send_fwdelete(itnim))
886 bfa_sm_set_state(itnim, bfa_itnim_sm_deleting);
888 bfa_sm_set_state(itnim, bfa_itnim_sm_deleting_qfull);
891 case BFA_ITNIM_SM_HWFAIL:
892 bfa_sm_set_state(itnim, bfa_itnim_sm_iocdisable);
893 bfa_itnim_iocdisable_cleanup(itnim);
897 bfa_sm_fault(itnim->bfa, event);
902 * Rport offline. Fimrware itnim is being deleted - awaiting f/w response.
905 bfa_itnim_sm_fwdelete(struct bfa_itnim_s *itnim, enum bfa_itnim_event event)
907 bfa_trc(itnim->bfa, itnim->rport->rport_tag);
908 bfa_trc(itnim->bfa, event);
911 case BFA_ITNIM_SM_FWRSP:
912 bfa_sm_set_state(itnim, bfa_itnim_sm_offline);
913 bfa_itnim_offline_cb(itnim);
916 case BFA_ITNIM_SM_DELETE:
917 bfa_sm_set_state(itnim, bfa_itnim_sm_deleting);
920 case BFA_ITNIM_SM_HWFAIL:
921 bfa_sm_set_state(itnim, bfa_itnim_sm_iocdisable);
922 bfa_itnim_offline_cb(itnim);
926 bfa_sm_fault(itnim->bfa, event);
931 bfa_itnim_sm_fwdelete_qfull(struct bfa_itnim_s *itnim,
932 enum bfa_itnim_event event)
934 bfa_trc(itnim->bfa, itnim->rport->rport_tag);
935 bfa_trc(itnim->bfa, event);
938 case BFA_ITNIM_SM_QRESUME:
939 bfa_sm_set_state(itnim, bfa_itnim_sm_fwdelete);
940 bfa_itnim_send_fwdelete(itnim);
943 case BFA_ITNIM_SM_DELETE:
944 bfa_sm_set_state(itnim, bfa_itnim_sm_deleting_qfull);
947 case BFA_ITNIM_SM_HWFAIL:
948 bfa_sm_set_state(itnim, bfa_itnim_sm_iocdisable);
949 bfa_reqq_wcancel(&itnim->reqq_wait);
950 bfa_itnim_offline_cb(itnim);
954 bfa_sm_fault(itnim->bfa, event);
962 bfa_itnim_sm_offline(struct bfa_itnim_s *itnim, enum bfa_itnim_event event)
964 bfa_trc(itnim->bfa, itnim->rport->rport_tag);
965 bfa_trc(itnim->bfa, event);
968 case BFA_ITNIM_SM_DELETE:
969 bfa_sm_set_state(itnim, bfa_itnim_sm_uninit);
970 bfa_itnim_iotov_delete(itnim);
971 bfa_fcpim_delitn(itnim);
974 case BFA_ITNIM_SM_ONLINE:
975 if (bfa_itnim_send_fwcreate(itnim))
976 bfa_sm_set_state(itnim, bfa_itnim_sm_fwcreate);
978 bfa_sm_set_state(itnim, bfa_itnim_sm_fwcreate_qfull);
981 case BFA_ITNIM_SM_HWFAIL:
982 bfa_sm_set_state(itnim, bfa_itnim_sm_iocdisable);
986 bfa_sm_fault(itnim->bfa, event);
991 * IOC h/w failed state.
994 bfa_itnim_sm_iocdisable(struct bfa_itnim_s *itnim,
995 enum bfa_itnim_event event)
997 bfa_trc(itnim->bfa, itnim->rport->rport_tag);
998 bfa_trc(itnim->bfa, event);
1001 case BFA_ITNIM_SM_DELETE:
1002 bfa_sm_set_state(itnim, bfa_itnim_sm_uninit);
1003 bfa_itnim_iotov_delete(itnim);
1004 bfa_fcpim_delitn(itnim);
1007 case BFA_ITNIM_SM_OFFLINE:
1008 bfa_itnim_offline_cb(itnim);
1011 case BFA_ITNIM_SM_ONLINE:
1012 if (bfa_itnim_send_fwcreate(itnim))
1013 bfa_sm_set_state(itnim, bfa_itnim_sm_fwcreate);
1015 bfa_sm_set_state(itnim, bfa_itnim_sm_fwcreate_qfull);
1018 case BFA_ITNIM_SM_HWFAIL:
1022 bfa_sm_fault(itnim->bfa, event);
1027 * Itnim is deleted, waiting for firmware response to delete.
1030 bfa_itnim_sm_deleting(struct bfa_itnim_s *itnim, enum bfa_itnim_event event)
1032 bfa_trc(itnim->bfa, itnim->rport->rport_tag);
1033 bfa_trc(itnim->bfa, event);
1036 case BFA_ITNIM_SM_FWRSP:
1037 case BFA_ITNIM_SM_HWFAIL:
1038 bfa_sm_set_state(itnim, bfa_itnim_sm_uninit);
1039 bfa_fcpim_delitn(itnim);
1043 bfa_sm_fault(itnim->bfa, event);
1048 bfa_itnim_sm_deleting_qfull(struct bfa_itnim_s *itnim,
1049 enum bfa_itnim_event event)
1051 bfa_trc(itnim->bfa, itnim->rport->rport_tag);
1052 bfa_trc(itnim->bfa, event);
1055 case BFA_ITNIM_SM_QRESUME:
1056 bfa_sm_set_state(itnim, bfa_itnim_sm_deleting);
1057 bfa_itnim_send_fwdelete(itnim);
1060 case BFA_ITNIM_SM_HWFAIL:
1061 bfa_sm_set_state(itnim, bfa_itnim_sm_uninit);
1062 bfa_reqq_wcancel(&itnim->reqq_wait);
1063 bfa_fcpim_delitn(itnim);
1067 bfa_sm_fault(itnim->bfa, event);
1072 * Initiate cleanup of all IOs on an IOC failure.
1075 bfa_itnim_iocdisable_cleanup(struct bfa_itnim_s *itnim)
1077 struct bfa_tskim_s *tskim;
1078 struct bfa_ioim_s *ioim;
1079 struct list_head *qe, *qen;
1081 list_for_each_safe(qe, qen, &itnim->tsk_q) {
1082 tskim = (struct bfa_tskim_s *) qe;
1083 bfa_tskim_iocdisable(tskim);
1086 list_for_each_safe(qe, qen, &itnim->io_q) {
1087 ioim = (struct bfa_ioim_s *) qe;
1088 bfa_ioim_iocdisable(ioim);
1092 * For IO request in pending queue, we pretend an early timeout.
1094 list_for_each_safe(qe, qen, &itnim->pending_q) {
1095 ioim = (struct bfa_ioim_s *) qe;
1099 list_for_each_safe(qe, qen, &itnim->io_cleanup_q) {
1100 ioim = (struct bfa_ioim_s *) qe;
1101 bfa_ioim_iocdisable(ioim);
1106 * IO cleanup completion
1109 bfa_itnim_cleanp_comp(void *itnim_cbarg)
1111 struct bfa_itnim_s *itnim = itnim_cbarg;
1113 bfa_stats(itnim, cleanup_comps);
1114 bfa_sm_send_event(itnim, BFA_ITNIM_SM_CLEANUP);
1118 * Initiate cleanup of all IOs.
1121 bfa_itnim_cleanup(struct bfa_itnim_s *itnim)
1123 struct bfa_ioim_s *ioim;
1124 struct bfa_tskim_s *tskim;
1125 struct list_head *qe, *qen;
1127 bfa_wc_init(&itnim->wc, bfa_itnim_cleanp_comp, itnim);
1129 list_for_each_safe(qe, qen, &itnim->io_q) {
1130 ioim = (struct bfa_ioim_s *) qe;
1133 * Move IO to a cleanup queue from active queue so that a later
1134 * TM will not pickup this IO.
1136 list_del(&ioim->qe);
1137 list_add_tail(&ioim->qe, &itnim->io_cleanup_q);
1139 bfa_wc_up(&itnim->wc);
1140 bfa_ioim_cleanup(ioim);
1143 list_for_each_safe(qe, qen, &itnim->tsk_q) {
1144 tskim = (struct bfa_tskim_s *) qe;
1145 bfa_wc_up(&itnim->wc);
1146 bfa_tskim_cleanup(tskim);
1149 bfa_wc_wait(&itnim->wc);
1153 __bfa_cb_itnim_online(void *cbarg, bfa_boolean_t complete)
1155 struct bfa_itnim_s *itnim = cbarg;
1158 bfa_cb_itnim_online(itnim->ditn);
1162 __bfa_cb_itnim_offline(void *cbarg, bfa_boolean_t complete)
1164 struct bfa_itnim_s *itnim = cbarg;
1167 bfa_cb_itnim_offline(itnim->ditn);
1171 __bfa_cb_itnim_sler(void *cbarg, bfa_boolean_t complete)
1173 struct bfa_itnim_s *itnim = cbarg;
1176 bfa_cb_itnim_sler(itnim->ditn);
1180 * Call to resume any I/O requests waiting for room in request queue.
1183 bfa_itnim_qresume(void *cbarg)
1185 struct bfa_itnim_s *itnim = cbarg;
1187 bfa_sm_send_event(itnim, BFA_ITNIM_SM_QRESUME);
1198 bfa_itnim_iodone(struct bfa_itnim_s *itnim)
1200 bfa_wc_down(&itnim->wc);
1204 bfa_itnim_tskdone(struct bfa_itnim_s *itnim)
1206 bfa_wc_down(&itnim->wc);
1210 bfa_itnim_meminfo(struct bfa_iocfc_cfg_s *cfg, u32 *km_len,
1216 *km_len += cfg->fwcfg.num_rports * sizeof(struct bfa_itnim_s);
1220 bfa_itnim_attach(struct bfa_fcpim_mod_s *fcpim, struct bfa_meminfo_s *minfo)
1222 struct bfa_s *bfa = fcpim->bfa;
1223 struct bfa_itnim_s *itnim;
1226 INIT_LIST_HEAD(&fcpim->itnim_q);
1228 itnim = (struct bfa_itnim_s *) bfa_meminfo_kva(minfo);
1229 fcpim->itnim_arr = itnim;
1231 for (i = 0; i < fcpim->num_itnims; i++, itnim++) {
1232 bfa_os_memset(itnim, 0, sizeof(struct bfa_itnim_s));
1234 itnim->fcpim = fcpim;
1235 itnim->reqq = BFA_REQQ_QOS_LO;
1236 itnim->rport = BFA_RPORT_FROM_TAG(bfa, i);
1237 itnim->iotov_active = BFA_FALSE;
1238 bfa_reqq_winit(&itnim->reqq_wait, bfa_itnim_qresume, itnim);
1240 INIT_LIST_HEAD(&itnim->io_q);
1241 INIT_LIST_HEAD(&itnim->io_cleanup_q);
1242 INIT_LIST_HEAD(&itnim->pending_q);
1243 INIT_LIST_HEAD(&itnim->tsk_q);
1244 INIT_LIST_HEAD(&itnim->delay_comp_q);
1245 for (j = 0; j < BFA_IOBUCKET_MAX; j++)
1246 itnim->ioprofile.io_latency.min[j] = ~0;
1247 bfa_sm_set_state(itnim, bfa_itnim_sm_uninit);
1250 bfa_meminfo_kva(minfo) = (u8 *) itnim;
1254 bfa_itnim_iocdisable(struct bfa_itnim_s *itnim)
1256 bfa_stats(itnim, ioc_disabled);
1257 bfa_sm_send_event(itnim, BFA_ITNIM_SM_HWFAIL);
1260 static bfa_boolean_t
1261 bfa_itnim_send_fwcreate(struct bfa_itnim_s *itnim)
1263 struct bfi_itnim_create_req_s *m;
1268 * check for room in queue to send request now
1270 m = bfa_reqq_next(itnim->bfa, itnim->reqq);
1272 bfa_reqq_wait(itnim->bfa, itnim->reqq, &itnim->reqq_wait);
1276 bfi_h2i_set(m->mh, BFI_MC_ITNIM, BFI_ITNIM_H2I_CREATE_REQ,
1277 bfa_lpuid(itnim->bfa));
1278 m->fw_handle = itnim->rport->fw_handle;
1279 m->class = FC_CLASS_3;
1280 m->seq_rec = itnim->seq_rec;
1281 m->msg_no = itnim->msg_no;
1282 bfa_stats(itnim, fw_create);
1285 * queue I/O message to firmware
1287 bfa_reqq_produce(itnim->bfa, itnim->reqq);
1291 static bfa_boolean_t
1292 bfa_itnim_send_fwdelete(struct bfa_itnim_s *itnim)
1294 struct bfi_itnim_delete_req_s *m;
1297 * check for room in queue to send request now
1299 m = bfa_reqq_next(itnim->bfa, itnim->reqq);
1301 bfa_reqq_wait(itnim->bfa, itnim->reqq, &itnim->reqq_wait);
1305 bfi_h2i_set(m->mh, BFI_MC_ITNIM, BFI_ITNIM_H2I_DELETE_REQ,
1306 bfa_lpuid(itnim->bfa));
1307 m->fw_handle = itnim->rport->fw_handle;
1308 bfa_stats(itnim, fw_delete);
1311 * queue I/O message to firmware
1313 bfa_reqq_produce(itnim->bfa, itnim->reqq);
1318 * Cleanup all pending failed inflight requests.
1321 bfa_itnim_delayed_comp(struct bfa_itnim_s *itnim, bfa_boolean_t iotov)
1323 struct bfa_ioim_s *ioim;
1324 struct list_head *qe, *qen;
1326 list_for_each_safe(qe, qen, &itnim->delay_comp_q) {
1327 ioim = (struct bfa_ioim_s *)qe;
1328 bfa_ioim_delayed_comp(ioim, iotov);
1333 * Start all pending IO requests.
1336 bfa_itnim_iotov_online(struct bfa_itnim_s *itnim)
1338 struct bfa_ioim_s *ioim;
1340 bfa_itnim_iotov_stop(itnim);
1343 * Abort all inflight IO requests in the queue
1345 bfa_itnim_delayed_comp(itnim, BFA_FALSE);
1348 * Start all pending IO requests.
1350 while (!list_empty(&itnim->pending_q)) {
1351 bfa_q_deq(&itnim->pending_q, &ioim);
1352 list_add_tail(&ioim->qe, &itnim->io_q);
1353 bfa_ioim_start(ioim);
1358 * Fail all pending IO requests
1361 bfa_itnim_iotov_cleanup(struct bfa_itnim_s *itnim)
1363 struct bfa_ioim_s *ioim;
1366 * Fail all inflight IO requests in the queue
1368 bfa_itnim_delayed_comp(itnim, BFA_TRUE);
1371 * Fail any pending IO requests.
1373 while (!list_empty(&itnim->pending_q)) {
1374 bfa_q_deq(&itnim->pending_q, &ioim);
1375 list_add_tail(&ioim->qe, &ioim->fcpim->ioim_comp_q);
1381 * IO TOV timer callback. Fail any pending IO requests.
1384 bfa_itnim_iotov(void *itnim_arg)
1386 struct bfa_itnim_s *itnim = itnim_arg;
1388 itnim->iotov_active = BFA_FALSE;
1390 bfa_cb_itnim_tov_begin(itnim->ditn);
1391 bfa_itnim_iotov_cleanup(itnim);
1392 bfa_cb_itnim_tov(itnim->ditn);
1396 * Start IO TOV timer for failing back pending IO requests in offline state.
1399 bfa_itnim_iotov_start(struct bfa_itnim_s *itnim)
1401 if (itnim->fcpim->path_tov > 0) {
1403 itnim->iotov_active = BFA_TRUE;
1404 bfa_assert(bfa_itnim_hold_io(itnim));
1405 bfa_timer_start(itnim->bfa, &itnim->timer,
1406 bfa_itnim_iotov, itnim, itnim->fcpim->path_tov);
1411 * Stop IO TOV timer.
1414 bfa_itnim_iotov_stop(struct bfa_itnim_s *itnim)
1416 if (itnim->iotov_active) {
1417 itnim->iotov_active = BFA_FALSE;
1418 bfa_timer_stop(&itnim->timer);
1423 * Stop IO TOV timer.
1426 bfa_itnim_iotov_delete(struct bfa_itnim_s *itnim)
1428 bfa_boolean_t pathtov_active = BFA_FALSE;
1430 if (itnim->iotov_active)
1431 pathtov_active = BFA_TRUE;
1433 bfa_itnim_iotov_stop(itnim);
1435 bfa_cb_itnim_tov_begin(itnim->ditn);
1436 bfa_itnim_iotov_cleanup(itnim);
1438 bfa_cb_itnim_tov(itnim->ditn);
1442 bfa_itnim_update_del_itn_stats(struct bfa_itnim_s *itnim)
1444 struct bfa_fcpim_mod_s *fcpim = BFA_FCPIM_MOD(itnim->bfa);
1445 fcpim->del_itn_stats.del_itn_iocomp_aborted +=
1446 itnim->stats.iocomp_aborted;
1447 fcpim->del_itn_stats.del_itn_iocomp_timedout +=
1448 itnim->stats.iocomp_timedout;
1449 fcpim->del_itn_stats.del_itn_iocom_sqer_needed +=
1450 itnim->stats.iocom_sqer_needed;
1451 fcpim->del_itn_stats.del_itn_iocom_res_free +=
1452 itnim->stats.iocom_res_free;
1453 fcpim->del_itn_stats.del_itn_iocom_hostabrts +=
1454 itnim->stats.iocom_hostabrts;
1455 fcpim->del_itn_stats.del_itn_total_ios += itnim->stats.total_ios;
1456 fcpim->del_itn_stats.del_io_iocdowns += itnim->stats.io_iocdowns;
1457 fcpim->del_itn_stats.del_tm_iocdowns += itnim->stats.tm_iocdowns;
1467 * Itnim interrupt processing.
1470 bfa_itnim_isr(struct bfa_s *bfa, struct bfi_msg_s *m)
1472 struct bfa_fcpim_mod_s *fcpim = BFA_FCPIM_MOD(bfa);
1473 union bfi_itnim_i2h_msg_u msg;
1474 struct bfa_itnim_s *itnim;
1476 bfa_trc(bfa, m->mhdr.msg_id);
1480 switch (m->mhdr.msg_id) {
1481 case BFI_ITNIM_I2H_CREATE_RSP:
1482 itnim = BFA_ITNIM_FROM_TAG(fcpim,
1483 msg.create_rsp->bfa_handle);
1484 bfa_assert(msg.create_rsp->status == BFA_STATUS_OK);
1485 bfa_stats(itnim, create_comps);
1486 bfa_sm_send_event(itnim, BFA_ITNIM_SM_FWRSP);
1489 case BFI_ITNIM_I2H_DELETE_RSP:
1490 itnim = BFA_ITNIM_FROM_TAG(fcpim,
1491 msg.delete_rsp->bfa_handle);
1492 bfa_assert(msg.delete_rsp->status == BFA_STATUS_OK);
1493 bfa_stats(itnim, delete_comps);
1494 bfa_sm_send_event(itnim, BFA_ITNIM_SM_FWRSP);
1497 case BFI_ITNIM_I2H_SLER_EVENT:
1498 itnim = BFA_ITNIM_FROM_TAG(fcpim,
1499 msg.sler_event->bfa_handle);
1500 bfa_stats(itnim, sler_events);
1501 bfa_sm_send_event(itnim, BFA_ITNIM_SM_SLER);
1505 bfa_trc(bfa, m->mhdr.msg_id);
1516 struct bfa_itnim_s *
1517 bfa_itnim_create(struct bfa_s *bfa, struct bfa_rport_s *rport, void *ditn)
1519 struct bfa_fcpim_mod_s *fcpim = BFA_FCPIM_MOD(bfa);
1520 struct bfa_itnim_s *itnim;
1522 itnim = BFA_ITNIM_FROM_TAG(fcpim, rport->rport_tag);
1523 bfa_assert(itnim->rport == rport);
1527 bfa_stats(itnim, creates);
1528 bfa_sm_send_event(itnim, BFA_ITNIM_SM_CREATE);
1534 bfa_itnim_delete(struct bfa_itnim_s *itnim)
1536 bfa_stats(itnim, deletes);
1537 bfa_sm_send_event(itnim, BFA_ITNIM_SM_DELETE);
1541 bfa_itnim_online(struct bfa_itnim_s *itnim, bfa_boolean_t seq_rec)
1543 itnim->seq_rec = seq_rec;
1544 bfa_stats(itnim, onlines);
1545 bfa_sm_send_event(itnim, BFA_ITNIM_SM_ONLINE);
1549 bfa_itnim_offline(struct bfa_itnim_s *itnim)
1551 bfa_stats(itnim, offlines);
1552 bfa_sm_send_event(itnim, BFA_ITNIM_SM_OFFLINE);
1556 * Return true if itnim is considered offline for holding off IO request.
1557 * IO is not held if itnim is being deleted.
1560 bfa_itnim_hold_io(struct bfa_itnim_s *itnim)
1562 return itnim->fcpim->path_tov && itnim->iotov_active &&
1563 (bfa_sm_cmp_state(itnim, bfa_itnim_sm_fwcreate) ||
1564 bfa_sm_cmp_state(itnim, bfa_itnim_sm_sler) ||
1565 bfa_sm_cmp_state(itnim, bfa_itnim_sm_cleanup_offline) ||
1566 bfa_sm_cmp_state(itnim, bfa_itnim_sm_fwdelete) ||
1567 bfa_sm_cmp_state(itnim, bfa_itnim_sm_offline) ||
1568 bfa_sm_cmp_state(itnim, bfa_itnim_sm_iocdisable));
1572 bfa_itnim_get_ioprofile(struct bfa_itnim_s *itnim,
1573 struct bfa_itnim_ioprofile_s *ioprofile)
1575 struct bfa_fcpim_mod_s *fcpim = BFA_FCPIM_MOD(itnim->bfa);
1576 if (!fcpim->io_profile)
1577 return BFA_STATUS_IOPROFILE_OFF;
1579 itnim->ioprofile.index = BFA_IOBUCKET_MAX;
1580 itnim->ioprofile.io_profile_start_time =
1581 bfa_io_profile_start_time(itnim->bfa);
1582 itnim->ioprofile.clock_res_mul = bfa_io_lat_clock_res_mul;
1583 itnim->ioprofile.clock_res_div = bfa_io_lat_clock_res_div;
1584 *ioprofile = itnim->ioprofile;
1586 return BFA_STATUS_OK;
1590 bfa_itnim_get_stats(struct bfa_itnim_s *itnim,
1591 struct bfa_itnim_iostats_s *stats)
1593 *stats = itnim->stats;
1597 bfa_itnim_clear_stats(struct bfa_itnim_s *itnim)
1600 bfa_os_memset(&itnim->stats, 0, sizeof(itnim->stats));
1601 bfa_os_memset(&itnim->ioprofile, 0, sizeof(itnim->ioprofile));
1602 for (j = 0; j < BFA_IOBUCKET_MAX; j++)
1603 itnim->ioprofile.io_latency.min[j] = ~0;
1607 * BFA IO module state machine functions
1611 * IO is not started (unallocated).
1614 bfa_ioim_sm_uninit(struct bfa_ioim_s *ioim, enum bfa_ioim_event event)
1616 bfa_trc_fp(ioim->bfa, ioim->iotag);
1617 bfa_trc_fp(ioim->bfa, event);
1620 case BFA_IOIM_SM_START:
1621 if (!bfa_itnim_is_online(ioim->itnim)) {
1622 if (!bfa_itnim_hold_io(ioim->itnim)) {
1623 bfa_sm_set_state(ioim, bfa_ioim_sm_hcb);
1624 list_del(&ioim->qe);
1625 list_add_tail(&ioim->qe,
1626 &ioim->fcpim->ioim_comp_q);
1627 bfa_cb_queue(ioim->bfa, &ioim->hcb_qe,
1628 __bfa_cb_ioim_pathtov, ioim);
1630 list_del(&ioim->qe);
1631 list_add_tail(&ioim->qe,
1632 &ioim->itnim->pending_q);
1637 if (ioim->nsges > BFI_SGE_INLINE) {
1638 if (!bfa_ioim_sge_setup(ioim)) {
1639 bfa_sm_set_state(ioim, bfa_ioim_sm_sgalloc);
1644 if (!bfa_ioim_send_ioreq(ioim)) {
1645 bfa_sm_set_state(ioim, bfa_ioim_sm_qfull);
1649 bfa_sm_set_state(ioim, bfa_ioim_sm_active);
1652 case BFA_IOIM_SM_IOTOV:
1653 bfa_sm_set_state(ioim, bfa_ioim_sm_hcb);
1654 bfa_ioim_move_to_comp_q(ioim);
1655 bfa_cb_queue(ioim->bfa, &ioim->hcb_qe,
1656 __bfa_cb_ioim_pathtov, ioim);
1659 case BFA_IOIM_SM_ABORT:
1661 * IO in pending queue can get abort requests. Complete abort
1662 * requests immediately.
1664 bfa_sm_set_state(ioim, bfa_ioim_sm_hcb);
1665 bfa_assert(bfa_q_is_on_q(&ioim->itnim->pending_q, ioim));
1666 bfa_cb_queue(ioim->bfa, &ioim->hcb_qe,
1667 __bfa_cb_ioim_abort, ioim);
1671 bfa_sm_fault(ioim->bfa, event);
1676 * IO is waiting for SG pages.
1679 bfa_ioim_sm_sgalloc(struct bfa_ioim_s *ioim, enum bfa_ioim_event event)
1681 bfa_trc(ioim->bfa, ioim->iotag);
1682 bfa_trc(ioim->bfa, event);
1685 case BFA_IOIM_SM_SGALLOCED:
1686 if (!bfa_ioim_send_ioreq(ioim)) {
1687 bfa_sm_set_state(ioim, bfa_ioim_sm_qfull);
1690 bfa_sm_set_state(ioim, bfa_ioim_sm_active);
1693 case BFA_IOIM_SM_CLEANUP:
1694 bfa_sm_set_state(ioim, bfa_ioim_sm_hcb);
1695 bfa_sgpg_wcancel(ioim->bfa, &ioim->iosp->sgpg_wqe);
1696 bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, __bfa_cb_ioim_failed,
1698 bfa_ioim_notify_cleanup(ioim);
1701 case BFA_IOIM_SM_ABORT:
1702 bfa_sm_set_state(ioim, bfa_ioim_sm_hcb);
1703 bfa_sgpg_wcancel(ioim->bfa, &ioim->iosp->sgpg_wqe);
1704 bfa_ioim_move_to_comp_q(ioim);
1705 bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, __bfa_cb_ioim_abort,
1709 case BFA_IOIM_SM_HWFAIL:
1710 bfa_sm_set_state(ioim, bfa_ioim_sm_hcb);
1711 bfa_sgpg_wcancel(ioim->bfa, &ioim->iosp->sgpg_wqe);
1712 bfa_ioim_move_to_comp_q(ioim);
1713 bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, __bfa_cb_ioim_failed,
1718 bfa_sm_fault(ioim->bfa, event);
1726 bfa_ioim_sm_active(struct bfa_ioim_s *ioim, enum bfa_ioim_event event)
1728 bfa_trc_fp(ioim->bfa, ioim->iotag);
1729 bfa_trc_fp(ioim->bfa, event);
1732 case BFA_IOIM_SM_COMP_GOOD:
1733 bfa_sm_set_state(ioim, bfa_ioim_sm_hcb);
1734 bfa_ioim_move_to_comp_q(ioim);
1735 bfa_cb_queue(ioim->bfa, &ioim->hcb_qe,
1736 __bfa_cb_ioim_good_comp, ioim);
1739 case BFA_IOIM_SM_COMP:
1740 bfa_sm_set_state(ioim, bfa_ioim_sm_hcb);
1741 bfa_ioim_move_to_comp_q(ioim);
1742 bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, __bfa_cb_ioim_comp,
1746 case BFA_IOIM_SM_DONE:
1747 bfa_sm_set_state(ioim, bfa_ioim_sm_hcb_free);
1748 bfa_ioim_move_to_comp_q(ioim);
1749 bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, __bfa_cb_ioim_comp,
1753 case BFA_IOIM_SM_ABORT:
1754 ioim->iosp->abort_explicit = BFA_TRUE;
1755 ioim->io_cbfn = __bfa_cb_ioim_abort;
1757 if (bfa_ioim_send_abort(ioim))
1758 bfa_sm_set_state(ioim, bfa_ioim_sm_abort);
1760 bfa_sm_set_state(ioim, bfa_ioim_sm_abort_qfull);
1761 bfa_stats(ioim->itnim, qwait);
1762 bfa_reqq_wait(ioim->bfa, ioim->reqq,
1763 &ioim->iosp->reqq_wait);
1767 case BFA_IOIM_SM_CLEANUP:
1768 ioim->iosp->abort_explicit = BFA_FALSE;
1769 ioim->io_cbfn = __bfa_cb_ioim_failed;
1771 if (bfa_ioim_send_abort(ioim))
1772 bfa_sm_set_state(ioim, bfa_ioim_sm_cleanup);
1774 bfa_sm_set_state(ioim, bfa_ioim_sm_cleanup_qfull);
1775 bfa_stats(ioim->itnim, qwait);
1776 bfa_reqq_wait(ioim->bfa, ioim->reqq,
1777 &ioim->iosp->reqq_wait);
1781 case BFA_IOIM_SM_HWFAIL:
1782 bfa_sm_set_state(ioim, bfa_ioim_sm_hcb);
1783 bfa_ioim_move_to_comp_q(ioim);
1784 bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, __bfa_cb_ioim_failed,
1788 case BFA_IOIM_SM_SQRETRY:
1789 if (bfa_ioim_get_iotag(ioim) != BFA_TRUE) {
1790 /* max retry completed free IO */
1791 bfa_sm_set_state(ioim, bfa_ioim_sm_hcb_free);
1792 bfa_ioim_move_to_comp_q(ioim);
1793 bfa_cb_queue(ioim->bfa, &ioim->hcb_qe,
1794 __bfa_cb_ioim_failed, ioim);
1797 /* waiting for IO tag resource free */
1798 bfa_sm_set_state(ioim, bfa_ioim_sm_cmnd_retry);
1802 bfa_sm_fault(ioim->bfa, event);
1807 * IO is retried with new tag.
1810 bfa_ioim_sm_cmnd_retry(struct bfa_ioim_s *ioim, enum bfa_ioim_event event)
1812 bfa_trc_fp(ioim->bfa, ioim->iotag);
1813 bfa_trc_fp(ioim->bfa, event);
1816 case BFA_IOIM_SM_FREE:
1817 /* abts and rrq done. Now retry the IO with new tag */
1818 if (!bfa_ioim_send_ioreq(ioim)) {
1819 bfa_sm_set_state(ioim, bfa_ioim_sm_qfull);
1822 bfa_sm_set_state(ioim, bfa_ioim_sm_active);
1825 case BFA_IOIM_SM_CLEANUP:
1826 ioim->iosp->abort_explicit = BFA_FALSE;
1827 ioim->io_cbfn = __bfa_cb_ioim_failed;
1829 if (bfa_ioim_send_abort(ioim))
1830 bfa_sm_set_state(ioim, bfa_ioim_sm_cleanup);
1832 bfa_sm_set_state(ioim, bfa_ioim_sm_cleanup_qfull);
1833 bfa_stats(ioim->itnim, qwait);
1834 bfa_reqq_wait(ioim->bfa, ioim->reqq,
1835 &ioim->iosp->reqq_wait);
1839 case BFA_IOIM_SM_HWFAIL:
1840 bfa_sm_set_state(ioim, bfa_ioim_sm_hcb);
1841 bfa_ioim_move_to_comp_q(ioim);
1842 bfa_cb_queue(ioim->bfa, &ioim->hcb_qe,
1843 __bfa_cb_ioim_failed, ioim);
1846 case BFA_IOIM_SM_ABORT:
1847 /** in this state IO abort is done.
1848 * Waiting for IO tag resource free.
1850 bfa_sm_set_state(ioim, bfa_ioim_sm_hcb_free);
1851 bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, __bfa_cb_ioim_abort,
1856 bfa_sm_fault(ioim->bfa, event);
1861 * IO is being aborted, waiting for completion from firmware.
1864 bfa_ioim_sm_abort(struct bfa_ioim_s *ioim, enum bfa_ioim_event event)
1866 bfa_trc(ioim->bfa, ioim->iotag);
1867 bfa_trc(ioim->bfa, event);
1870 case BFA_IOIM_SM_COMP_GOOD:
1871 case BFA_IOIM_SM_COMP:
1872 case BFA_IOIM_SM_DONE:
1873 case BFA_IOIM_SM_FREE:
1876 case BFA_IOIM_SM_ABORT_DONE:
1877 bfa_sm_set_state(ioim, bfa_ioim_sm_hcb_free);
1878 bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, __bfa_cb_ioim_abort,
1882 case BFA_IOIM_SM_ABORT_COMP:
1883 bfa_sm_set_state(ioim, bfa_ioim_sm_hcb);
1884 bfa_ioim_move_to_comp_q(ioim);
1885 bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, __bfa_cb_ioim_abort,
1889 case BFA_IOIM_SM_COMP_UTAG:
1890 bfa_sm_set_state(ioim, bfa_ioim_sm_hcb);
1891 bfa_ioim_move_to_comp_q(ioim);
1892 bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, __bfa_cb_ioim_abort,
1896 case BFA_IOIM_SM_CLEANUP:
1897 bfa_assert(ioim->iosp->abort_explicit == BFA_TRUE);
1898 ioim->iosp->abort_explicit = BFA_FALSE;
1900 if (bfa_ioim_send_abort(ioim))
1901 bfa_sm_set_state(ioim, bfa_ioim_sm_cleanup);
1903 bfa_sm_set_state(ioim, bfa_ioim_sm_cleanup_qfull);
1904 bfa_stats(ioim->itnim, qwait);
1905 bfa_reqq_wait(ioim->bfa, ioim->reqq,
1906 &ioim->iosp->reqq_wait);
1910 case BFA_IOIM_SM_HWFAIL:
1911 bfa_sm_set_state(ioim, bfa_ioim_sm_hcb);
1912 bfa_ioim_move_to_comp_q(ioim);
1913 bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, __bfa_cb_ioim_failed,
1918 bfa_sm_fault(ioim->bfa, event);
1923 * IO is being cleaned up (implicit abort), waiting for completion from
1927 bfa_ioim_sm_cleanup(struct bfa_ioim_s *ioim, enum bfa_ioim_event event)
1929 bfa_trc(ioim->bfa, ioim->iotag);
1930 bfa_trc(ioim->bfa, event);
1933 case BFA_IOIM_SM_COMP_GOOD:
1934 case BFA_IOIM_SM_COMP:
1935 case BFA_IOIM_SM_DONE:
1936 case BFA_IOIM_SM_FREE:
1939 case BFA_IOIM_SM_ABORT:
1941 * IO is already being aborted implicitly
1943 ioim->io_cbfn = __bfa_cb_ioim_abort;
1946 case BFA_IOIM_SM_ABORT_DONE:
1947 bfa_sm_set_state(ioim, bfa_ioim_sm_hcb_free);
1948 bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, ioim->io_cbfn, ioim);
1949 bfa_ioim_notify_cleanup(ioim);
1952 case BFA_IOIM_SM_ABORT_COMP:
1953 bfa_sm_set_state(ioim, bfa_ioim_sm_hcb);
1954 bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, ioim->io_cbfn, ioim);
1955 bfa_ioim_notify_cleanup(ioim);
1958 case BFA_IOIM_SM_COMP_UTAG:
1959 bfa_sm_set_state(ioim, bfa_ioim_sm_hcb);
1960 bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, ioim->io_cbfn, ioim);
1961 bfa_ioim_notify_cleanup(ioim);
1964 case BFA_IOIM_SM_HWFAIL:
1965 bfa_sm_set_state(ioim, bfa_ioim_sm_hcb);
1966 bfa_ioim_move_to_comp_q(ioim);
1967 bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, __bfa_cb_ioim_failed,
1971 case BFA_IOIM_SM_CLEANUP:
1973 * IO can be in cleanup state already due to TM command.
1974 * 2nd cleanup request comes from ITN offline event.
1979 bfa_sm_fault(ioim->bfa, event);
1984 * IO is waiting for room in request CQ
1987 bfa_ioim_sm_qfull(struct bfa_ioim_s *ioim, enum bfa_ioim_event event)
1989 bfa_trc(ioim->bfa, ioim->iotag);
1990 bfa_trc(ioim->bfa, event);
1993 case BFA_IOIM_SM_QRESUME:
1994 bfa_sm_set_state(ioim, bfa_ioim_sm_active);
1995 bfa_ioim_send_ioreq(ioim);
1998 case BFA_IOIM_SM_ABORT:
1999 bfa_sm_set_state(ioim, bfa_ioim_sm_hcb);
2000 bfa_reqq_wcancel(&ioim->iosp->reqq_wait);
2001 bfa_ioim_move_to_comp_q(ioim);
2002 bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, __bfa_cb_ioim_abort,
2006 case BFA_IOIM_SM_CLEANUP:
2007 bfa_sm_set_state(ioim, bfa_ioim_sm_hcb);
2008 bfa_reqq_wcancel(&ioim->iosp->reqq_wait);
2009 bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, __bfa_cb_ioim_failed,
2011 bfa_ioim_notify_cleanup(ioim);
2014 case BFA_IOIM_SM_HWFAIL:
2015 bfa_sm_set_state(ioim, bfa_ioim_sm_hcb);
2016 bfa_reqq_wcancel(&ioim->iosp->reqq_wait);
2017 bfa_ioim_move_to_comp_q(ioim);
2018 bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, __bfa_cb_ioim_failed,
2023 bfa_sm_fault(ioim->bfa, event);
2028 * Active IO is being aborted, waiting for room in request CQ.
2031 bfa_ioim_sm_abort_qfull(struct bfa_ioim_s *ioim, enum bfa_ioim_event event)
2033 bfa_trc(ioim->bfa, ioim->iotag);
2034 bfa_trc(ioim->bfa, event);
2037 case BFA_IOIM_SM_QRESUME:
2038 bfa_sm_set_state(ioim, bfa_ioim_sm_abort);
2039 bfa_ioim_send_abort(ioim);
2042 case BFA_IOIM_SM_CLEANUP:
2043 bfa_assert(ioim->iosp->abort_explicit == BFA_TRUE);
2044 ioim->iosp->abort_explicit = BFA_FALSE;
2045 bfa_sm_set_state(ioim, bfa_ioim_sm_cleanup_qfull);
2048 case BFA_IOIM_SM_COMP_GOOD:
2049 case BFA_IOIM_SM_COMP:
2050 bfa_sm_set_state(ioim, bfa_ioim_sm_hcb);
2051 bfa_reqq_wcancel(&ioim->iosp->reqq_wait);
2052 bfa_ioim_move_to_comp_q(ioim);
2053 bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, __bfa_cb_ioim_abort,
2057 case BFA_IOIM_SM_DONE:
2058 bfa_sm_set_state(ioim, bfa_ioim_sm_hcb_free);
2059 bfa_reqq_wcancel(&ioim->iosp->reqq_wait);
2060 bfa_ioim_move_to_comp_q(ioim);
2061 bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, __bfa_cb_ioim_abort,
2065 case BFA_IOIM_SM_HWFAIL:
2066 bfa_sm_set_state(ioim, bfa_ioim_sm_hcb);
2067 bfa_reqq_wcancel(&ioim->iosp->reqq_wait);
2068 bfa_ioim_move_to_comp_q(ioim);
2069 bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, __bfa_cb_ioim_failed,
2074 bfa_sm_fault(ioim->bfa, event);
2079 * Active IO is being cleaned up, waiting for room in request CQ.
2082 bfa_ioim_sm_cleanup_qfull(struct bfa_ioim_s *ioim, enum bfa_ioim_event event)
2084 bfa_trc(ioim->bfa, ioim->iotag);
2085 bfa_trc(ioim->bfa, event);
2088 case BFA_IOIM_SM_QRESUME:
2089 bfa_sm_set_state(ioim, bfa_ioim_sm_cleanup);
2090 bfa_ioim_send_abort(ioim);
2093 case BFA_IOIM_SM_ABORT:
2095 * IO is alraedy being cleaned up implicitly
2097 ioim->io_cbfn = __bfa_cb_ioim_abort;
2100 case BFA_IOIM_SM_COMP_GOOD:
2101 case BFA_IOIM_SM_COMP:
2102 bfa_sm_set_state(ioim, bfa_ioim_sm_hcb);
2103 bfa_reqq_wcancel(&ioim->iosp->reqq_wait);
2104 bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, ioim->io_cbfn, ioim);
2105 bfa_ioim_notify_cleanup(ioim);
2108 case BFA_IOIM_SM_DONE:
2109 bfa_sm_set_state(ioim, bfa_ioim_sm_hcb_free);
2110 bfa_reqq_wcancel(&ioim->iosp->reqq_wait);
2111 bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, ioim->io_cbfn, ioim);
2112 bfa_ioim_notify_cleanup(ioim);
2115 case BFA_IOIM_SM_HWFAIL:
2116 bfa_sm_set_state(ioim, bfa_ioim_sm_hcb);
2117 bfa_reqq_wcancel(&ioim->iosp->reqq_wait);
2118 bfa_ioim_move_to_comp_q(ioim);
2119 bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, __bfa_cb_ioim_failed,
2124 bfa_sm_fault(ioim->bfa, event);
2129 * IO bfa callback is pending.
2132 bfa_ioim_sm_hcb(struct bfa_ioim_s *ioim, enum bfa_ioim_event event)
2134 bfa_trc_fp(ioim->bfa, ioim->iotag);
2135 bfa_trc_fp(ioim->bfa, event);
2138 case BFA_IOIM_SM_HCB:
2139 bfa_sm_set_state(ioim, bfa_ioim_sm_uninit);
2140 bfa_ioim_free(ioim);
2143 case BFA_IOIM_SM_CLEANUP:
2144 bfa_ioim_notify_cleanup(ioim);
2147 case BFA_IOIM_SM_HWFAIL:
2151 bfa_sm_fault(ioim->bfa, event);
2156 * IO bfa callback is pending. IO resource cannot be freed.
2159 bfa_ioim_sm_hcb_free(struct bfa_ioim_s *ioim, enum bfa_ioim_event event)
2161 bfa_trc(ioim->bfa, ioim->iotag);
2162 bfa_trc(ioim->bfa, event);
2165 case BFA_IOIM_SM_HCB:
2166 bfa_sm_set_state(ioim, bfa_ioim_sm_resfree);
2167 list_del(&ioim->qe);
2168 list_add_tail(&ioim->qe, &ioim->fcpim->ioim_resfree_q);
2171 case BFA_IOIM_SM_FREE:
2172 bfa_sm_set_state(ioim, bfa_ioim_sm_hcb);
2175 case BFA_IOIM_SM_CLEANUP:
2176 bfa_ioim_notify_cleanup(ioim);
2179 case BFA_IOIM_SM_HWFAIL:
2180 bfa_sm_set_state(ioim, bfa_ioim_sm_hcb);
2184 bfa_sm_fault(ioim->bfa, event);
2189 * IO is completed, waiting resource free from firmware.
2192 bfa_ioim_sm_resfree(struct bfa_ioim_s *ioim, enum bfa_ioim_event event)
2194 bfa_trc(ioim->bfa, ioim->iotag);
2195 bfa_trc(ioim->bfa, event);
2198 case BFA_IOIM_SM_FREE:
2199 bfa_sm_set_state(ioim, bfa_ioim_sm_uninit);
2200 bfa_ioim_free(ioim);
2203 case BFA_IOIM_SM_CLEANUP:
2204 bfa_ioim_notify_cleanup(ioim);
2207 case BFA_IOIM_SM_HWFAIL:
2211 bfa_sm_fault(ioim->bfa, event);
2222 __bfa_cb_ioim_good_comp(void *cbarg, bfa_boolean_t complete)
2224 struct bfa_ioim_s *ioim = cbarg;
2227 bfa_sm_send_event(ioim, BFA_IOIM_SM_HCB);
2231 bfa_cb_ioim_good_comp(ioim->bfa->bfad, ioim->dio);
2235 __bfa_cb_ioim_comp(void *cbarg, bfa_boolean_t complete)
2237 struct bfa_ioim_s *ioim = cbarg;
2238 struct bfi_ioim_rsp_s *m;
2244 bfa_sm_send_event(ioim, BFA_IOIM_SM_HCB);
2248 m = (struct bfi_ioim_rsp_s *) &ioim->iosp->comp_rspmsg;
2249 if (m->io_status == BFI_IOIM_STS_OK) {
2251 * setup sense information, if present
2253 if ((m->scsi_status == SCSI_STATUS_CHECK_CONDITION) &&
2255 sns_len = m->sns_len;
2256 snsinfo = ioim->iosp->snsinfo;
2260 * setup residue value correctly for normal completions
2262 if (m->resid_flags == FCP_RESID_UNDER) {
2263 residue = bfa_os_ntohl(m->residue);
2264 bfa_stats(ioim->itnim, iocomp_underrun);
2266 if (m->resid_flags == FCP_RESID_OVER) {
2267 residue = bfa_os_ntohl(m->residue);
2269 bfa_stats(ioim->itnim, iocomp_overrun);
2273 bfa_cb_ioim_done(ioim->bfa->bfad, ioim->dio, m->io_status,
2274 m->scsi_status, sns_len, snsinfo, residue);
2278 __bfa_cb_ioim_failed(void *cbarg, bfa_boolean_t complete)
2280 struct bfa_ioim_s *ioim = cbarg;
2283 bfa_sm_send_event(ioim, BFA_IOIM_SM_HCB);
2287 bfa_cb_ioim_done(ioim->bfa->bfad, ioim->dio, BFI_IOIM_STS_ABORTED,
2292 __bfa_cb_ioim_pathtov(void *cbarg, bfa_boolean_t complete)
2294 struct bfa_ioim_s *ioim = cbarg;
2296 bfa_stats(ioim->itnim, path_tov_expired);
2298 bfa_sm_send_event(ioim, BFA_IOIM_SM_HCB);
2302 bfa_cb_ioim_done(ioim->bfa->bfad, ioim->dio, BFI_IOIM_STS_PATHTOV,
2307 __bfa_cb_ioim_abort(void *cbarg, bfa_boolean_t complete)
2309 struct bfa_ioim_s *ioim = cbarg;
2312 bfa_sm_send_event(ioim, BFA_IOIM_SM_HCB);
2316 bfa_cb_ioim_abort(ioim->bfa->bfad, ioim->dio);
2320 bfa_ioim_sgpg_alloced(void *cbarg)
2322 struct bfa_ioim_s *ioim = cbarg;
2324 ioim->nsgpgs = BFA_SGPG_NPAGE(ioim->nsges);
2325 list_splice_tail_init(&ioim->iosp->sgpg_wqe.sgpg_q, &ioim->sgpg_q);
2326 bfa_ioim_sgpg_setup(ioim);
2327 bfa_sm_send_event(ioim, BFA_IOIM_SM_SGALLOCED);
2331 * Send I/O request to firmware.
2333 static bfa_boolean_t
2334 bfa_ioim_send_ioreq(struct bfa_ioim_s *ioim)
2336 struct bfa_itnim_s *itnim = ioim->itnim;
2337 struct bfi_ioim_req_s *m;
2338 static struct fcp_cmnd_s cmnd_z0 = { 0 };
2339 struct bfi_sge_s *sge;
2343 struct scatterlist *sg;
2344 struct scsi_cmnd *cmnd = (struct scsi_cmnd *) ioim->dio;
2347 * check for room in queue to send request now
2349 m = bfa_reqq_next(ioim->bfa, ioim->reqq);
2351 bfa_stats(ioim->itnim, qwait);
2352 bfa_reqq_wait(ioim->bfa, ioim->reqq,
2353 &ioim->iosp->reqq_wait);
2358 * build i/o request message next
2360 m->io_tag = bfa_os_htons(ioim->iotag);
2361 m->rport_hdl = ioim->itnim->rport->fw_handle;
2362 m->io_timeout = bfa_cb_ioim_get_timeout(ioim->dio);
2365 * build inline IO SG element here
2369 sg = (struct scatterlist *)scsi_sglist(cmnd);
2370 addr = bfa_os_sgaddr(sg_dma_address(sg));
2371 sge->sga = *(union bfi_addr_u *) &addr;
2372 pgdlen = sg_dma_len(sg);
2373 sge->sg_len = pgdlen;
2374 sge->flags = (ioim->nsges > BFI_SGE_INLINE) ?
2375 BFI_SGE_DATA_CPL : BFI_SGE_DATA_LAST;
2380 if (ioim->nsges > BFI_SGE_INLINE) {
2381 sge->sga = ioim->sgpg->sgpg_pa;
2383 sge->sga.a32.addr_lo = 0;
2384 sge->sga.a32.addr_hi = 0;
2386 sge->sg_len = pgdlen;
2387 sge->flags = BFI_SGE_PGDLEN;
2391 * set up I/O command parameters
2393 bfa_os_assign(m->cmnd, cmnd_z0);
2394 m->cmnd.lun = bfa_cb_ioim_get_lun(ioim->dio);
2395 m->cmnd.iodir = bfa_cb_ioim_get_iodir(ioim->dio);
2396 bfa_os_assign(m->cmnd.cdb,
2397 *(scsi_cdb_t *)bfa_cb_ioim_get_cdb(ioim->dio));
2398 fcp_dl = bfa_cb_ioim_get_size(ioim->dio);
2399 m->cmnd.fcp_dl = bfa_os_htonl(fcp_dl);
2402 * set up I/O message header
2404 switch (m->cmnd.iodir) {
2405 case FCP_IODIR_READ:
2406 bfi_h2i_set(m->mh, BFI_MC_IOIM_READ, 0, bfa_lpuid(ioim->bfa));
2407 bfa_stats(itnim, input_reqs);
2408 ioim->itnim->stats.rd_throughput += fcp_dl;
2410 case FCP_IODIR_WRITE:
2411 bfi_h2i_set(m->mh, BFI_MC_IOIM_WRITE, 0, bfa_lpuid(ioim->bfa));
2412 bfa_stats(itnim, output_reqs);
2413 ioim->itnim->stats.wr_throughput += fcp_dl;
2416 bfa_stats(itnim, input_reqs);
2417 bfa_stats(itnim, output_reqs);
2419 bfi_h2i_set(m->mh, BFI_MC_IOIM_IO, 0, bfa_lpuid(ioim->bfa));
2421 if (itnim->seq_rec ||
2422 (bfa_cb_ioim_get_size(ioim->dio) & (sizeof(u32) - 1)))
2423 bfi_h2i_set(m->mh, BFI_MC_IOIM_IO, 0, bfa_lpuid(ioim->bfa));
2425 #ifdef IOIM_ADVANCED
2426 m->cmnd.crn = bfa_cb_ioim_get_crn(ioim->dio);
2427 m->cmnd.priority = bfa_cb_ioim_get_priority(ioim->dio);
2428 m->cmnd.taskattr = bfa_cb_ioim_get_taskattr(ioim->dio);
2431 * Handle large CDB (>16 bytes).
2433 m->cmnd.addl_cdb_len = (bfa_cb_ioim_get_cdblen(ioim->dio) -
2434 FCP_CMND_CDB_LEN) / sizeof(u32);
2435 if (m->cmnd.addl_cdb_len) {
2436 bfa_os_memcpy(&m->cmnd.cdb + 1, (scsi_cdb_t *)
2437 bfa_cb_ioim_get_cdb(ioim->dio) + 1,
2438 m->cmnd.addl_cdb_len * sizeof(u32));
2439 fcp_cmnd_fcpdl(&m->cmnd) =
2440 bfa_os_htonl(bfa_cb_ioim_get_size(ioim->dio));
2445 * queue I/O message to firmware
2447 bfa_reqq_produce(ioim->bfa, ioim->reqq);
2452 * Setup any additional SG pages needed.Inline SG element is setup
2455 static bfa_boolean_t
2456 bfa_ioim_sge_setup(struct bfa_ioim_s *ioim)
2460 bfa_assert(ioim->nsges > BFI_SGE_INLINE);
2463 * allocate SG pages needed
2465 nsgpgs = BFA_SGPG_NPAGE(ioim->nsges);
2469 if (bfa_sgpg_malloc(ioim->bfa, &ioim->sgpg_q, nsgpgs)
2471 bfa_sgpg_wait(ioim->bfa, &ioim->iosp->sgpg_wqe, nsgpgs);
2475 ioim->nsgpgs = nsgpgs;
2476 bfa_ioim_sgpg_setup(ioim);
2482 bfa_ioim_sgpg_setup(struct bfa_ioim_s *ioim)
2484 int sgeid, nsges, i;
2485 struct bfi_sge_s *sge;
2486 struct bfa_sgpg_s *sgpg;
2489 struct scatterlist *sg;
2490 struct scsi_cmnd *cmnd = (struct scsi_cmnd *) ioim->dio;
2492 sgeid = BFI_SGE_INLINE;
2493 ioim->sgpg = sgpg = bfa_q_first(&ioim->sgpg_q);
2495 sg = scsi_sglist(cmnd);
2499 sge = sgpg->sgpg->sges;
2500 nsges = ioim->nsges - sgeid;
2501 if (nsges > BFI_SGPG_DATA_SGES)
2502 nsges = BFI_SGPG_DATA_SGES;
2505 for (i = 0; i < nsges; i++, sge++, sgeid++, sg = sg_next(sg)) {
2506 addr = bfa_os_sgaddr(sg_dma_address(sg));
2507 sge->sga = *(union bfi_addr_u *) &addr;
2508 sge->sg_len = sg_dma_len(sg);
2509 pgcumsz += sge->sg_len;
2514 if (i < (nsges - 1))
2515 sge->flags = BFI_SGE_DATA;
2516 else if (sgeid < (ioim->nsges - 1))
2517 sge->flags = BFI_SGE_DATA_CPL;
2519 sge->flags = BFI_SGE_DATA_LAST;
2524 sgpg = (struct bfa_sgpg_s *) bfa_q_next(sgpg);
2527 * set the link element of each page
2529 if (sgeid == ioim->nsges) {
2530 sge->flags = BFI_SGE_PGDLEN;
2531 sge->sga.a32.addr_lo = 0;
2532 sge->sga.a32.addr_hi = 0;
2534 sge->flags = BFI_SGE_LINK;
2535 sge->sga = sgpg->sgpg_pa;
2537 sge->sg_len = pgcumsz;
2540 } while (sgeid < ioim->nsges);
2544 * Send I/O abort request to firmware.
2546 static bfa_boolean_t
2547 bfa_ioim_send_abort(struct bfa_ioim_s *ioim)
2549 struct bfi_ioim_abort_req_s *m;
2550 enum bfi_ioim_h2i msgop;
2553 * check for room in queue to send request now
2555 m = bfa_reqq_next(ioim->bfa, ioim->reqq);
2560 * build i/o request message next
2562 if (ioim->iosp->abort_explicit)
2563 msgop = BFI_IOIM_H2I_IOABORT_REQ;
2565 msgop = BFI_IOIM_H2I_IOCLEANUP_REQ;
2567 bfi_h2i_set(m->mh, BFI_MC_IOIM, msgop, bfa_lpuid(ioim->bfa));
2568 m->io_tag = bfa_os_htons(ioim->iotag);
2569 m->abort_tag = ++ioim->abort_tag;
2572 * queue I/O message to firmware
2574 bfa_reqq_produce(ioim->bfa, ioim->reqq);
2579 * Call to resume any I/O requests waiting for room in request queue.
2582 bfa_ioim_qresume(void *cbarg)
2584 struct bfa_ioim_s *ioim = cbarg;
2586 bfa_stats(ioim->itnim, qresumes);
2587 bfa_sm_send_event(ioim, BFA_IOIM_SM_QRESUME);
2592 bfa_ioim_notify_cleanup(struct bfa_ioim_s *ioim)
2595 * Move IO from itnim queue to fcpim global queue since itnim will be
2598 list_del(&ioim->qe);
2599 list_add_tail(&ioim->qe, &ioim->fcpim->ioim_comp_q);
2601 if (!ioim->iosp->tskim) {
2602 if (ioim->fcpim->delay_comp && ioim->itnim->iotov_active) {
2603 bfa_cb_dequeue(&ioim->hcb_qe);
2604 list_del(&ioim->qe);
2605 list_add_tail(&ioim->qe, &ioim->itnim->delay_comp_q);
2607 bfa_itnim_iodone(ioim->itnim);
2609 bfa_tskim_iodone(ioim->iosp->tskim);
2612 static bfa_boolean_t
2613 bfa_ioim_is_abortable(struct bfa_ioim_s *ioim)
2615 if ((bfa_sm_cmp_state(ioim, bfa_ioim_sm_uninit) &&
2616 (!bfa_q_is_on_q(&ioim->itnim->pending_q, ioim))) ||
2617 (bfa_sm_cmp_state(ioim, bfa_ioim_sm_abort)) ||
2618 (bfa_sm_cmp_state(ioim, bfa_ioim_sm_abort_qfull)) ||
2619 (bfa_sm_cmp_state(ioim, bfa_ioim_sm_hcb)) ||
2620 (bfa_sm_cmp_state(ioim, bfa_ioim_sm_hcb_free)) ||
2621 (bfa_sm_cmp_state(ioim, bfa_ioim_sm_resfree)))
2628 * or after the link comes back.
2631 bfa_ioim_delayed_comp(struct bfa_ioim_s *ioim, bfa_boolean_t iotov)
2634 * If path tov timer expired, failback with PATHTOV status - these
2635 * IO requests are not normally retried by IO stack.
2637 * Otherwise device cameback online and fail it with normal failed
2638 * status so that IO stack retries these failed IO requests.
2641 ioim->io_cbfn = __bfa_cb_ioim_pathtov;
2643 ioim->io_cbfn = __bfa_cb_ioim_failed;
2644 bfa_stats(ioim->itnim, iocom_nexus_abort);
2646 bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, ioim->io_cbfn, ioim);
2649 * Move IO to fcpim global queue since itnim will be
2652 list_del(&ioim->qe);
2653 list_add_tail(&ioim->qe, &ioim->fcpim->ioim_comp_q);
2663 * Memory allocation and initialization.
2666 bfa_ioim_attach(struct bfa_fcpim_mod_s *fcpim, struct bfa_meminfo_s *minfo)
2668 struct bfa_ioim_s *ioim;
2669 struct bfa_ioim_sp_s *iosp;
2675 * claim memory first
2677 ioim = (struct bfa_ioim_s *) bfa_meminfo_kva(minfo);
2678 fcpim->ioim_arr = ioim;
2679 bfa_meminfo_kva(minfo) = (u8 *) (ioim + fcpim->num_ioim_reqs);
2681 iosp = (struct bfa_ioim_sp_s *) bfa_meminfo_kva(minfo);
2682 fcpim->ioim_sp_arr = iosp;
2683 bfa_meminfo_kva(minfo) = (u8 *) (iosp + fcpim->num_ioim_reqs);
2686 * Claim DMA memory for per IO sense data.
2688 snsbufsz = fcpim->num_ioim_reqs * BFI_IOIM_SNSLEN;
2689 fcpim->snsbase.pa = bfa_meminfo_dma_phys(minfo);
2690 bfa_meminfo_dma_phys(minfo) += snsbufsz;
2692 fcpim->snsbase.kva = bfa_meminfo_dma_virt(minfo);
2693 bfa_meminfo_dma_virt(minfo) += snsbufsz;
2694 snsinfo = fcpim->snsbase.kva;
2695 bfa_iocfc_set_snsbase(fcpim->bfa, fcpim->snsbase.pa);
2698 * Initialize ioim free queues
2700 INIT_LIST_HEAD(&fcpim->ioim_free_q);
2701 INIT_LIST_HEAD(&fcpim->ioim_resfree_q);
2702 INIT_LIST_HEAD(&fcpim->ioim_comp_q);
2704 for (i = 0; i < fcpim->num_ioim_reqs;
2705 i++, ioim++, iosp++, snsinfo += BFI_IOIM_SNSLEN) {
2709 bfa_os_memset(ioim, 0, sizeof(struct bfa_ioim_s));
2711 ioim->bfa = fcpim->bfa;
2712 ioim->fcpim = fcpim;
2714 iosp->snsinfo = snsinfo;
2715 INIT_LIST_HEAD(&ioim->sgpg_q);
2716 bfa_reqq_winit(&ioim->iosp->reqq_wait,
2717 bfa_ioim_qresume, ioim);
2718 bfa_sgpg_winit(&ioim->iosp->sgpg_wqe,
2719 bfa_ioim_sgpg_alloced, ioim);
2720 bfa_sm_set_state(ioim, bfa_ioim_sm_uninit);
2722 list_add_tail(&ioim->qe, &fcpim->ioim_free_q);
2727 * Driver detach time call.
2730 bfa_ioim_detach(struct bfa_fcpim_mod_s *fcpim)
2735 bfa_ioim_isr(struct bfa_s *bfa, struct bfi_msg_s *m)
2737 struct bfa_fcpim_mod_s *fcpim = BFA_FCPIM_MOD(bfa);
2738 struct bfi_ioim_rsp_s *rsp = (struct bfi_ioim_rsp_s *) m;
2739 struct bfa_ioim_s *ioim;
2741 enum bfa_ioim_event evt = BFA_IOIM_SM_COMP;
2743 iotag = bfa_os_ntohs(rsp->io_tag);
2745 ioim = BFA_IOIM_FROM_TAG(fcpim, iotag);
2746 bfa_assert(ioim->iotag == iotag);
2748 bfa_trc(ioim->bfa, ioim->iotag);
2749 bfa_trc(ioim->bfa, rsp->io_status);
2750 bfa_trc(ioim->bfa, rsp->reuse_io_tag);
2752 if (bfa_sm_cmp_state(ioim, bfa_ioim_sm_active))
2753 bfa_os_assign(ioim->iosp->comp_rspmsg, *m);
2755 switch (rsp->io_status) {
2756 case BFI_IOIM_STS_OK:
2757 bfa_stats(ioim->itnim, iocomp_ok);
2758 if (rsp->reuse_io_tag == 0)
2759 evt = BFA_IOIM_SM_DONE;
2761 evt = BFA_IOIM_SM_COMP;
2764 case BFI_IOIM_STS_TIMEDOUT:
2765 bfa_stats(ioim->itnim, iocomp_timedout);
2766 case BFI_IOIM_STS_ABORTED:
2767 rsp->io_status = BFI_IOIM_STS_ABORTED;
2768 bfa_stats(ioim->itnim, iocomp_aborted);
2769 if (rsp->reuse_io_tag == 0)
2770 evt = BFA_IOIM_SM_DONE;
2772 evt = BFA_IOIM_SM_COMP;
2775 case BFI_IOIM_STS_PROTO_ERR:
2776 bfa_stats(ioim->itnim, iocom_proto_err);
2777 bfa_assert(rsp->reuse_io_tag);
2778 evt = BFA_IOIM_SM_COMP;
2781 case BFI_IOIM_STS_SQER_NEEDED:
2782 bfa_stats(ioim->itnim, iocom_sqer_needed);
2783 bfa_assert(rsp->reuse_io_tag == 0);
2784 evt = BFA_IOIM_SM_SQRETRY;
2787 case BFI_IOIM_STS_RES_FREE:
2788 bfa_stats(ioim->itnim, iocom_res_free);
2789 evt = BFA_IOIM_SM_FREE;
2792 case BFI_IOIM_STS_HOST_ABORTED:
2793 bfa_stats(ioim->itnim, iocom_hostabrts);
2794 if (rsp->abort_tag != ioim->abort_tag) {
2795 bfa_trc(ioim->bfa, rsp->abort_tag);
2796 bfa_trc(ioim->bfa, ioim->abort_tag);
2800 if (rsp->reuse_io_tag)
2801 evt = BFA_IOIM_SM_ABORT_COMP;
2803 evt = BFA_IOIM_SM_ABORT_DONE;
2806 case BFI_IOIM_STS_UTAG:
2807 bfa_stats(ioim->itnim, iocom_utags);
2808 evt = BFA_IOIM_SM_COMP_UTAG;
2815 bfa_sm_send_event(ioim, evt);
2819 bfa_ioim_good_comp_isr(struct bfa_s *bfa, struct bfi_msg_s *m)
2821 struct bfa_fcpim_mod_s *fcpim = BFA_FCPIM_MOD(bfa);
2822 struct bfi_ioim_rsp_s *rsp = (struct bfi_ioim_rsp_s *) m;
2823 struct bfa_ioim_s *ioim;
2826 iotag = bfa_os_ntohs(rsp->io_tag);
2828 ioim = BFA_IOIM_FROM_TAG(fcpim, iotag);
2829 bfa_assert(ioim->iotag == iotag);
2831 bfa_trc_fp(ioim->bfa, ioim->iotag);
2832 bfa_ioim_cb_profile_comp(fcpim, ioim);
2834 bfa_sm_send_event(ioim, BFA_IOIM_SM_COMP_GOOD);
2838 bfa_ioim_profile_start(struct bfa_ioim_s *ioim)
2840 ioim->start_time = bfa_os_get_clock();
2844 bfa_ioim_profile_comp(struct bfa_ioim_s *ioim)
2846 u32 fcp_dl = bfa_cb_ioim_get_size(ioim->dio);
2847 u32 index = bfa_ioim_get_index(fcp_dl);
2848 u64 end_time = bfa_os_get_clock();
2849 struct bfa_itnim_latency_s *io_lat =
2850 &(ioim->itnim->ioprofile.io_latency);
2851 u32 val = (u32)(end_time - ioim->start_time);
2853 bfa_itnim_ioprofile_update(ioim->itnim, index);
2855 io_lat->count[index]++;
2856 io_lat->min[index] = (io_lat->min[index] < val) ?
2857 io_lat->min[index] : val;
2858 io_lat->max[index] = (io_lat->max[index] > val) ?
2859 io_lat->max[index] : val;
2860 io_lat->avg[index] += val;
2863 * Called by itnim to clean up IO while going offline.
2866 bfa_ioim_cleanup(struct bfa_ioim_s *ioim)
2868 bfa_trc(ioim->bfa, ioim->iotag);
2869 bfa_stats(ioim->itnim, io_cleanups);
2871 ioim->iosp->tskim = NULL;
2872 bfa_sm_send_event(ioim, BFA_IOIM_SM_CLEANUP);
2876 bfa_ioim_cleanup_tm(struct bfa_ioim_s *ioim, struct bfa_tskim_s *tskim)
2878 bfa_trc(ioim->bfa, ioim->iotag);
2879 bfa_stats(ioim->itnim, io_tmaborts);
2881 ioim->iosp->tskim = tskim;
2882 bfa_sm_send_event(ioim, BFA_IOIM_SM_CLEANUP);
2886 * IOC failure handling.
2889 bfa_ioim_iocdisable(struct bfa_ioim_s *ioim)
2891 bfa_trc(ioim->bfa, ioim->iotag);
2892 bfa_stats(ioim->itnim, io_iocdowns);
2893 bfa_sm_send_event(ioim, BFA_IOIM_SM_HWFAIL);
2897 * IO offline TOV popped. Fail the pending IO.
2900 bfa_ioim_tov(struct bfa_ioim_s *ioim)
2902 bfa_trc(ioim->bfa, ioim->iotag);
2903 bfa_sm_send_event(ioim, BFA_IOIM_SM_IOTOV);
2913 * Allocate IOIM resource for initiator mode I/O request.
2916 bfa_ioim_alloc(struct bfa_s *bfa, struct bfad_ioim_s *dio,
2917 struct bfa_itnim_s *itnim, u16 nsges)
2919 struct bfa_fcpim_mod_s *fcpim = BFA_FCPIM_MOD(bfa);
2920 struct bfa_ioim_s *ioim;
2923 * alocate IOIM resource
2925 bfa_q_deq(&fcpim->ioim_free_q, &ioim);
2927 bfa_stats(itnim, no_iotags);
2932 ioim->itnim = itnim;
2933 ioim->nsges = nsges;
2936 bfa_stats(itnim, total_ios);
2937 fcpim->ios_active++;
2939 list_add_tail(&ioim->qe, &itnim->io_q);
2940 bfa_trc_fp(ioim->bfa, ioim->iotag);
2946 bfa_ioim_free(struct bfa_ioim_s *ioim)
2948 struct bfa_fcpim_mod_s *fcpim = ioim->fcpim;
2950 bfa_trc_fp(ioim->bfa, ioim->iotag);
2951 bfa_assert_fp(bfa_sm_cmp_state(ioim, bfa_ioim_sm_uninit));
2953 bfa_assert_fp(list_empty(&ioim->sgpg_q) ||
2954 (ioim->nsges > BFI_SGE_INLINE));
2956 if (ioim->nsgpgs > 0)
2957 bfa_sgpg_mfree(ioim->bfa, &ioim->sgpg_q, ioim->nsgpgs);
2959 bfa_stats(ioim->itnim, io_comps);
2960 fcpim->ios_active--;
2962 list_del(&ioim->qe);
2963 list_add_tail(&ioim->qe, &fcpim->ioim_free_q);
2967 bfa_ioim_start(struct bfa_ioim_s *ioim)
2969 bfa_trc_fp(ioim->bfa, ioim->iotag);
2971 bfa_ioim_cb_profile_start(ioim->fcpim, ioim);
2974 * Obtain the queue over which this request has to be issued
2976 ioim->reqq = bfa_fcpim_ioredirect_enabled(ioim->bfa) ?
2977 bfa_cb_ioim_get_reqq(ioim->dio) :
2978 bfa_itnim_get_reqq(ioim);
2980 bfa_sm_send_event(ioim, BFA_IOIM_SM_START);
2984 * Driver I/O abort request.
2987 bfa_ioim_abort(struct bfa_ioim_s *ioim)
2990 bfa_trc(ioim->bfa, ioim->iotag);
2992 if (!bfa_ioim_is_abortable(ioim))
2993 return BFA_STATUS_FAILED;
2995 bfa_stats(ioim->itnim, io_aborts);
2996 bfa_sm_send_event(ioim, BFA_IOIM_SM_ABORT);
2998 return BFA_STATUS_OK;
3003 * BFA TSKIM state machine functions
3007 * Task management command beginning state.
3010 bfa_tskim_sm_uninit(struct bfa_tskim_s *tskim, enum bfa_tskim_event event)
3012 bfa_trc(tskim->bfa, event);
3015 case BFA_TSKIM_SM_START:
3016 bfa_sm_set_state(tskim, bfa_tskim_sm_active);
3017 bfa_tskim_gather_ios(tskim);
3020 * If device is offline, do not send TM on wire. Just cleanup
3021 * any pending IO requests and complete TM request.
3023 if (!bfa_itnim_is_online(tskim->itnim)) {
3024 bfa_sm_set_state(tskim, bfa_tskim_sm_iocleanup);
3025 tskim->tsk_status = BFI_TSKIM_STS_OK;
3026 bfa_tskim_cleanup_ios(tskim);
3030 if (!bfa_tskim_send(tskim)) {
3031 bfa_sm_set_state(tskim, bfa_tskim_sm_qfull);
3032 bfa_stats(tskim->itnim, tm_qwait);
3033 bfa_reqq_wait(tskim->bfa, tskim->itnim->reqq,
3039 bfa_sm_fault(tskim->bfa, event);
3045 * TM command is active, awaiting completion from firmware to
3046 * cleanup IO requests in TM scope.
3049 bfa_tskim_sm_active(struct bfa_tskim_s *tskim, enum bfa_tskim_event event)
3051 bfa_trc(tskim->bfa, event);
3054 case BFA_TSKIM_SM_DONE:
3055 bfa_sm_set_state(tskim, bfa_tskim_sm_iocleanup);
3056 bfa_tskim_cleanup_ios(tskim);
3059 case BFA_TSKIM_SM_CLEANUP:
3060 bfa_sm_set_state(tskim, bfa_tskim_sm_cleanup);
3061 if (!bfa_tskim_send_abort(tskim)) {
3062 bfa_sm_set_state(tskim, bfa_tskim_sm_cleanup_qfull);
3063 bfa_stats(tskim->itnim, tm_qwait);
3064 bfa_reqq_wait(tskim->bfa, tskim->itnim->reqq,
3069 case BFA_TSKIM_SM_HWFAIL:
3070 bfa_sm_set_state(tskim, bfa_tskim_sm_hcb);
3071 bfa_tskim_iocdisable_ios(tskim);
3072 bfa_tskim_qcomp(tskim, __bfa_cb_tskim_failed);
3076 bfa_sm_fault(tskim->bfa, event);
3081 * An active TM is being cleaned up since ITN is offline. Awaiting cleanup
3082 * completion event from firmware.
3085 bfa_tskim_sm_cleanup(struct bfa_tskim_s *tskim, enum bfa_tskim_event event)
3087 bfa_trc(tskim->bfa, event);
3090 case BFA_TSKIM_SM_DONE:
3092 * Ignore and wait for ABORT completion from firmware.
3096 case BFA_TSKIM_SM_CLEANUP_DONE:
3097 bfa_sm_set_state(tskim, bfa_tskim_sm_iocleanup);
3098 bfa_tskim_cleanup_ios(tskim);
3101 case BFA_TSKIM_SM_HWFAIL:
3102 bfa_sm_set_state(tskim, bfa_tskim_sm_hcb);
3103 bfa_tskim_iocdisable_ios(tskim);
3104 bfa_tskim_qcomp(tskim, __bfa_cb_tskim_failed);
3108 bfa_sm_fault(tskim->bfa, event);
3113 bfa_tskim_sm_iocleanup(struct bfa_tskim_s *tskim, enum bfa_tskim_event event)
3115 bfa_trc(tskim->bfa, event);
3118 case BFA_TSKIM_SM_IOS_DONE:
3119 bfa_sm_set_state(tskim, bfa_tskim_sm_hcb);
3120 bfa_tskim_qcomp(tskim, __bfa_cb_tskim_done);
3123 case BFA_TSKIM_SM_CLEANUP:
3125 * Ignore, TM command completed on wire.
3126 * Notify TM conmpletion on IO cleanup completion.
3130 case BFA_TSKIM_SM_HWFAIL:
3131 bfa_sm_set_state(tskim, bfa_tskim_sm_hcb);
3132 bfa_tskim_iocdisable_ios(tskim);
3133 bfa_tskim_qcomp(tskim, __bfa_cb_tskim_failed);
3137 bfa_sm_fault(tskim->bfa, event);
3142 * Task management command is waiting for room in request CQ
3145 bfa_tskim_sm_qfull(struct bfa_tskim_s *tskim, enum bfa_tskim_event event)
3147 bfa_trc(tskim->bfa, event);
3150 case BFA_TSKIM_SM_QRESUME:
3151 bfa_sm_set_state(tskim, bfa_tskim_sm_active);
3152 bfa_tskim_send(tskim);
3155 case BFA_TSKIM_SM_CLEANUP:
3157 * No need to send TM on wire since ITN is offline.
3159 bfa_sm_set_state(tskim, bfa_tskim_sm_iocleanup);
3160 bfa_reqq_wcancel(&tskim->reqq_wait);
3161 bfa_tskim_cleanup_ios(tskim);
3164 case BFA_TSKIM_SM_HWFAIL:
3165 bfa_sm_set_state(tskim, bfa_tskim_sm_hcb);
3166 bfa_reqq_wcancel(&tskim->reqq_wait);
3167 bfa_tskim_iocdisable_ios(tskim);
3168 bfa_tskim_qcomp(tskim, __bfa_cb_tskim_failed);
3172 bfa_sm_fault(tskim->bfa, event);
3177 * Task management command is active, awaiting for room in request CQ
3178 * to send clean up request.
3181 bfa_tskim_sm_cleanup_qfull(struct bfa_tskim_s *tskim,
3182 enum bfa_tskim_event event)
3184 bfa_trc(tskim->bfa, event);
3187 case BFA_TSKIM_SM_DONE:
3188 bfa_reqq_wcancel(&tskim->reqq_wait);
3194 case BFA_TSKIM_SM_QRESUME:
3195 bfa_sm_set_state(tskim, bfa_tskim_sm_cleanup);
3196 bfa_tskim_send_abort(tskim);
3199 case BFA_TSKIM_SM_HWFAIL:
3200 bfa_sm_set_state(tskim, bfa_tskim_sm_hcb);
3201 bfa_reqq_wcancel(&tskim->reqq_wait);
3202 bfa_tskim_iocdisable_ios(tskim);
3203 bfa_tskim_qcomp(tskim, __bfa_cb_tskim_failed);
3207 bfa_sm_fault(tskim->bfa, event);
3212 * BFA callback is pending
3215 bfa_tskim_sm_hcb(struct bfa_tskim_s *tskim, enum bfa_tskim_event event)
3217 bfa_trc(tskim->bfa, event);
3220 case BFA_TSKIM_SM_HCB:
3221 bfa_sm_set_state(tskim, bfa_tskim_sm_uninit);
3222 bfa_tskim_free(tskim);
3225 case BFA_TSKIM_SM_CLEANUP:
3226 bfa_tskim_notify_comp(tskim);
3229 case BFA_TSKIM_SM_HWFAIL:
3233 bfa_sm_fault(tskim->bfa, event);
3244 __bfa_cb_tskim_done(void *cbarg, bfa_boolean_t complete)
3246 struct bfa_tskim_s *tskim = cbarg;
3249 bfa_sm_send_event(tskim, BFA_TSKIM_SM_HCB);
3253 bfa_stats(tskim->itnim, tm_success);
3254 bfa_cb_tskim_done(tskim->bfa->bfad, tskim->dtsk, tskim->tsk_status);
3258 __bfa_cb_tskim_failed(void *cbarg, bfa_boolean_t complete)
3260 struct bfa_tskim_s *tskim = cbarg;
3263 bfa_sm_send_event(tskim, BFA_TSKIM_SM_HCB);
3267 bfa_stats(tskim->itnim, tm_failures);
3268 bfa_cb_tskim_done(tskim->bfa->bfad, tskim->dtsk,
3269 BFI_TSKIM_STS_FAILED);
3272 static bfa_boolean_t
3273 bfa_tskim_match_scope(struct bfa_tskim_s *tskim, lun_t lun)
3275 switch (tskim->tm_cmnd) {
3276 case FCP_TM_TARGET_RESET:
3279 case FCP_TM_ABORT_TASK_SET:
3280 case FCP_TM_CLEAR_TASK_SET:
3281 case FCP_TM_LUN_RESET:
3282 case FCP_TM_CLEAR_ACA:
3283 return (tskim->lun == lun);
3293 * Gather affected IO requests and task management commands.
3296 bfa_tskim_gather_ios(struct bfa_tskim_s *tskim)
3298 struct bfa_itnim_s *itnim = tskim->itnim;
3299 struct bfa_ioim_s *ioim;
3300 struct list_head *qe, *qen;
3302 INIT_LIST_HEAD(&tskim->io_q);
3305 * Gather any active IO requests first.
3307 list_for_each_safe(qe, qen, &itnim->io_q) {
3308 ioim = (struct bfa_ioim_s *) qe;
3309 if (bfa_tskim_match_scope
3310 (tskim, bfa_cb_ioim_get_lun(ioim->dio))) {
3311 list_del(&ioim->qe);
3312 list_add_tail(&ioim->qe, &tskim->io_q);
3317 * Failback any pending IO requests immediately.
3319 list_for_each_safe(qe, qen, &itnim->pending_q) {
3320 ioim = (struct bfa_ioim_s *) qe;
3321 if (bfa_tskim_match_scope
3322 (tskim, bfa_cb_ioim_get_lun(ioim->dio))) {
3323 list_del(&ioim->qe);
3324 list_add_tail(&ioim->qe, &ioim->fcpim->ioim_comp_q);
3331 * IO cleanup completion
3334 bfa_tskim_cleanp_comp(void *tskim_cbarg)
3336 struct bfa_tskim_s *tskim = tskim_cbarg;
3338 bfa_stats(tskim->itnim, tm_io_comps);
3339 bfa_sm_send_event(tskim, BFA_TSKIM_SM_IOS_DONE);
3343 * Gather affected IO requests and task management commands.
3346 bfa_tskim_cleanup_ios(struct bfa_tskim_s *tskim)
3348 struct bfa_ioim_s *ioim;
3349 struct list_head *qe, *qen;
3351 bfa_wc_init(&tskim->wc, bfa_tskim_cleanp_comp, tskim);
3353 list_for_each_safe(qe, qen, &tskim->io_q) {
3354 ioim = (struct bfa_ioim_s *) qe;
3355 bfa_wc_up(&tskim->wc);
3356 bfa_ioim_cleanup_tm(ioim, tskim);
3359 bfa_wc_wait(&tskim->wc);
3363 * Send task management request to firmware.
3365 static bfa_boolean_t
3366 bfa_tskim_send(struct bfa_tskim_s *tskim)
3368 struct bfa_itnim_s *itnim = tskim->itnim;
3369 struct bfi_tskim_req_s *m;
3372 * check for room in queue to send request now
3374 m = bfa_reqq_next(tskim->bfa, itnim->reqq);
3379 * build i/o request message next
3381 bfi_h2i_set(m->mh, BFI_MC_TSKIM, BFI_TSKIM_H2I_TM_REQ,
3382 bfa_lpuid(tskim->bfa));
3384 m->tsk_tag = bfa_os_htons(tskim->tsk_tag);
3385 m->itn_fhdl = tskim->itnim->rport->fw_handle;
3386 m->t_secs = tskim->tsecs;
3387 m->lun = tskim->lun;
3388 m->tm_flags = tskim->tm_cmnd;
3391 * queue I/O message to firmware
3393 bfa_reqq_produce(tskim->bfa, itnim->reqq);
3398 * Send abort request to cleanup an active TM to firmware.
3400 static bfa_boolean_t
3401 bfa_tskim_send_abort(struct bfa_tskim_s *tskim)
3403 struct bfa_itnim_s *itnim = tskim->itnim;
3404 struct bfi_tskim_abortreq_s *m;
3407 * check for room in queue to send request now
3409 m = bfa_reqq_next(tskim->bfa, itnim->reqq);
3414 * build i/o request message next
3416 bfi_h2i_set(m->mh, BFI_MC_TSKIM, BFI_TSKIM_H2I_ABORT_REQ,
3417 bfa_lpuid(tskim->bfa));
3419 m->tsk_tag = bfa_os_htons(tskim->tsk_tag);
3422 * queue I/O message to firmware
3424 bfa_reqq_produce(tskim->bfa, itnim->reqq);
3429 * Call to resume task management cmnd waiting for room in request queue.
3432 bfa_tskim_qresume(void *cbarg)
3434 struct bfa_tskim_s *tskim = cbarg;
3436 bfa_stats(tskim->itnim, tm_qresumes);
3437 bfa_sm_send_event(tskim, BFA_TSKIM_SM_QRESUME);
3441 * Cleanup IOs associated with a task mangement command on IOC failures.
3444 bfa_tskim_iocdisable_ios(struct bfa_tskim_s *tskim)
3446 struct bfa_ioim_s *ioim;
3447 struct list_head *qe, *qen;
3449 list_for_each_safe(qe, qen, &tskim->io_q) {
3450 ioim = (struct bfa_ioim_s *) qe;
3451 bfa_ioim_iocdisable(ioim);
3462 * Notification on completions from related ioim.
3465 bfa_tskim_iodone(struct bfa_tskim_s *tskim)
3467 bfa_wc_down(&tskim->wc);
3471 * Handle IOC h/w failure notification from itnim.
3474 bfa_tskim_iocdisable(struct bfa_tskim_s *tskim)
3476 tskim->notify = BFA_FALSE;
3477 bfa_stats(tskim->itnim, tm_iocdowns);
3478 bfa_sm_send_event(tskim, BFA_TSKIM_SM_HWFAIL);
3482 * Cleanup TM command and associated IOs as part of ITNIM offline.
3485 bfa_tskim_cleanup(struct bfa_tskim_s *tskim)
3487 tskim->notify = BFA_TRUE;
3488 bfa_stats(tskim->itnim, tm_cleanups);
3489 bfa_sm_send_event(tskim, BFA_TSKIM_SM_CLEANUP);
3493 * Memory allocation and initialization.
3496 bfa_tskim_attach(struct bfa_fcpim_mod_s *fcpim, struct bfa_meminfo_s *minfo)
3498 struct bfa_tskim_s *tskim;
3501 INIT_LIST_HEAD(&fcpim->tskim_free_q);
3503 tskim = (struct bfa_tskim_s *) bfa_meminfo_kva(minfo);
3504 fcpim->tskim_arr = tskim;
3506 for (i = 0; i < fcpim->num_tskim_reqs; i++, tskim++) {
3510 bfa_os_memset(tskim, 0, sizeof(struct bfa_tskim_s));
3512 tskim->bfa = fcpim->bfa;
3513 tskim->fcpim = fcpim;
3514 tskim->notify = BFA_FALSE;
3515 bfa_reqq_winit(&tskim->reqq_wait, bfa_tskim_qresume,
3517 bfa_sm_set_state(tskim, bfa_tskim_sm_uninit);
3519 list_add_tail(&tskim->qe, &fcpim->tskim_free_q);
3522 bfa_meminfo_kva(minfo) = (u8 *) tskim;
3526 bfa_tskim_detach(struct bfa_fcpim_mod_s *fcpim)
3534 bfa_tskim_isr(struct bfa_s *bfa, struct bfi_msg_s *m)
3536 struct bfa_fcpim_mod_s *fcpim = BFA_FCPIM_MOD(bfa);
3537 struct bfi_tskim_rsp_s *rsp = (struct bfi_tskim_rsp_s *) m;
3538 struct bfa_tskim_s *tskim;
3539 u16 tsk_tag = bfa_os_ntohs(rsp->tsk_tag);
3541 tskim = BFA_TSKIM_FROM_TAG(fcpim, tsk_tag);
3542 bfa_assert(tskim->tsk_tag == tsk_tag);
3544 tskim->tsk_status = rsp->tsk_status;
3547 * Firmware sends BFI_TSKIM_STS_ABORTED status for abort
3548 * requests. All other statuses are for normal completions.
3550 if (rsp->tsk_status == BFI_TSKIM_STS_ABORTED) {
3551 bfa_stats(tskim->itnim, tm_cleanup_comps);
3552 bfa_sm_send_event(tskim, BFA_TSKIM_SM_CLEANUP_DONE);
3554 bfa_stats(tskim->itnim, tm_fw_rsps);
3555 bfa_sm_send_event(tskim, BFA_TSKIM_SM_DONE);
3566 struct bfa_tskim_s *
3567 bfa_tskim_alloc(struct bfa_s *bfa, struct bfad_tskim_s *dtsk)
3569 struct bfa_fcpim_mod_s *fcpim = BFA_FCPIM_MOD(bfa);
3570 struct bfa_tskim_s *tskim;
3572 bfa_q_deq(&fcpim->tskim_free_q, &tskim);
3581 bfa_tskim_free(struct bfa_tskim_s *tskim)
3583 bfa_assert(bfa_q_is_on_q_func(&tskim->itnim->tsk_q, &tskim->qe));
3584 list_del(&tskim->qe);
3585 list_add_tail(&tskim->qe, &tskim->fcpim->tskim_free_q);
3589 * Start a task management command.
3591 * @param[in] tskim BFA task management command instance
3592 * @param[in] itnim i-t nexus for the task management command
3593 * @param[in] lun lun, if applicable
3594 * @param[in] tm_cmnd Task management command code.
3595 * @param[in] t_secs Timeout in seconds
3600 bfa_tskim_start(struct bfa_tskim_s *tskim, struct bfa_itnim_s *itnim, lun_t lun,
3601 enum fcp_tm_cmnd tm_cmnd, u8 tsecs)
3603 tskim->itnim = itnim;
3605 tskim->tm_cmnd = tm_cmnd;
3606 tskim->tsecs = tsecs;
3607 tskim->notify = BFA_FALSE;
3608 bfa_stats(itnim, tm_cmnds);
3610 list_add_tail(&tskim->qe, &itnim->tsk_q);
3611 bfa_sm_send_event(tskim, BFA_TSKIM_SM_START);