Commit | Line | Data |
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7725ccfd | 1 | /* |
a36c61f9 | 2 | * Copyright (c) 2005-2010 Brocade Communications Systems, Inc. |
7725ccfd JH |
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 | ||
f16a1750 | 18 | #include "bfad_drv.h" |
a36c61f9 | 19 | #include "bfa_modules.h" |
7725ccfd JH |
20 | |
21 | BFA_TRC_FILE(HAL, FCPIM); | |
22 | BFA_MODULE(fcpim); | |
23 | ||
5fbe25c7 | 24 | /* |
a36c61f9 KG |
25 | * BFA ITNIM Related definitions |
26 | */ | |
27 | static void bfa_itnim_update_del_itn_stats(struct bfa_itnim_s *itnim); | |
28 | ||
29 | #define BFA_ITNIM_FROM_TAG(_fcpim, _tag) \ | |
30 | (((_fcpim)->itnim_arr + ((_tag) & ((_fcpim)->num_itnims - 1)))) | |
31 | ||
32 | #define bfa_fcpim_additn(__itnim) \ | |
33 | list_add_tail(&(__itnim)->qe, &(__itnim)->fcpim->itnim_q) | |
34 | #define bfa_fcpim_delitn(__itnim) do { \ | |
35 | bfa_assert(bfa_q_is_on_q(&(__itnim)->fcpim->itnim_q, __itnim)); \ | |
36 | bfa_itnim_update_del_itn_stats(__itnim); \ | |
37 | list_del(&(__itnim)->qe); \ | |
38 | bfa_assert(list_empty(&(__itnim)->io_q)); \ | |
39 | bfa_assert(list_empty(&(__itnim)->io_cleanup_q)); \ | |
40 | bfa_assert(list_empty(&(__itnim)->pending_q)); \ | |
41 | } while (0) | |
42 | ||
43 | #define bfa_itnim_online_cb(__itnim) do { \ | |
44 | if ((__itnim)->bfa->fcs) \ | |
45 | bfa_cb_itnim_online((__itnim)->ditn); \ | |
46 | else { \ | |
47 | bfa_cb_queue((__itnim)->bfa, &(__itnim)->hcb_qe, \ | |
48 | __bfa_cb_itnim_online, (__itnim)); \ | |
49 | } \ | |
50 | } while (0) | |
51 | ||
52 | #define bfa_itnim_offline_cb(__itnim) do { \ | |
53 | if ((__itnim)->bfa->fcs) \ | |
54 | bfa_cb_itnim_offline((__itnim)->ditn); \ | |
55 | else { \ | |
56 | bfa_cb_queue((__itnim)->bfa, &(__itnim)->hcb_qe, \ | |
57 | __bfa_cb_itnim_offline, (__itnim)); \ | |
58 | } \ | |
59 | } while (0) | |
60 | ||
61 | #define bfa_itnim_sler_cb(__itnim) do { \ | |
62 | if ((__itnim)->bfa->fcs) \ | |
63 | bfa_cb_itnim_sler((__itnim)->ditn); \ | |
64 | else { \ | |
65 | bfa_cb_queue((__itnim)->bfa, &(__itnim)->hcb_qe, \ | |
66 | __bfa_cb_itnim_sler, (__itnim)); \ | |
67 | } \ | |
68 | } while (0) | |
69 | ||
5fbe25c7 | 70 | /* |
da99dcc9 | 71 | * itnim state machine event |
a36c61f9 | 72 | */ |
a36c61f9 KG |
73 | enum bfa_itnim_event { |
74 | BFA_ITNIM_SM_CREATE = 1, /* itnim is created */ | |
75 | BFA_ITNIM_SM_ONLINE = 2, /* itnim is online */ | |
76 | BFA_ITNIM_SM_OFFLINE = 3, /* itnim is offline */ | |
77 | BFA_ITNIM_SM_FWRSP = 4, /* firmware response */ | |
78 | BFA_ITNIM_SM_DELETE = 5, /* deleting an existing itnim */ | |
79 | BFA_ITNIM_SM_CLEANUP = 6, /* IO cleanup completion */ | |
80 | BFA_ITNIM_SM_SLER = 7, /* second level error recovery */ | |
81 | BFA_ITNIM_SM_HWFAIL = 8, /* IOC h/w failure event */ | |
82 | BFA_ITNIM_SM_QRESUME = 9, /* queue space available */ | |
83 | }; | |
84 | ||
5fbe25c7 | 85 | /* |
a36c61f9 KG |
86 | * BFA IOIM related definitions |
87 | */ | |
88 | #define bfa_ioim_move_to_comp_q(__ioim) do { \ | |
89 | list_del(&(__ioim)->qe); \ | |
90 | list_add_tail(&(__ioim)->qe, &(__ioim)->fcpim->ioim_comp_q); \ | |
91 | } while (0) | |
92 | ||
93 | ||
94 | #define bfa_ioim_cb_profile_comp(__fcpim, __ioim) do { \ | |
95 | if ((__fcpim)->profile_comp) \ | |
96 | (__fcpim)->profile_comp(__ioim); \ | |
97 | } while (0) | |
98 | ||
99 | #define bfa_ioim_cb_profile_start(__fcpim, __ioim) do { \ | |
100 | if ((__fcpim)->profile_start) \ | |
101 | (__fcpim)->profile_start(__ioim); \ | |
102 | } while (0) | |
a36c61f9 | 103 | |
5fbe25c7 | 104 | /* |
a36c61f9 KG |
105 | * IO state machine events |
106 | */ | |
107 | enum bfa_ioim_event { | |
108 | BFA_IOIM_SM_START = 1, /* io start request from host */ | |
109 | BFA_IOIM_SM_COMP_GOOD = 2, /* io good comp, resource free */ | |
110 | BFA_IOIM_SM_COMP = 3, /* io comp, resource is free */ | |
111 | BFA_IOIM_SM_COMP_UTAG = 4, /* io comp, resource is free */ | |
112 | BFA_IOIM_SM_DONE = 5, /* io comp, resource not free */ | |
113 | BFA_IOIM_SM_FREE = 6, /* io resource is freed */ | |
114 | BFA_IOIM_SM_ABORT = 7, /* abort request from scsi stack */ | |
115 | BFA_IOIM_SM_ABORT_COMP = 8, /* abort from f/w */ | |
116 | BFA_IOIM_SM_ABORT_DONE = 9, /* abort completion from f/w */ | |
117 | BFA_IOIM_SM_QRESUME = 10, /* CQ space available to queue IO */ | |
118 | BFA_IOIM_SM_SGALLOCED = 11, /* SG page allocation successful */ | |
119 | BFA_IOIM_SM_SQRETRY = 12, /* sequence recovery retry */ | |
120 | BFA_IOIM_SM_HCB = 13, /* bfa callback complete */ | |
121 | BFA_IOIM_SM_CLEANUP = 14, /* IO cleanup from itnim */ | |
122 | BFA_IOIM_SM_TMSTART = 15, /* IO cleanup from tskim */ | |
123 | BFA_IOIM_SM_TMDONE = 16, /* IO cleanup from tskim */ | |
124 | BFA_IOIM_SM_HWFAIL = 17, /* IOC h/w failure event */ | |
125 | BFA_IOIM_SM_IOTOV = 18, /* ITN offline TOV */ | |
126 | }; | |
127 | ||
128 | ||
5fbe25c7 | 129 | /* |
a36c61f9 KG |
130 | * BFA TSKIM related definitions |
131 | */ | |
132 | ||
5fbe25c7 | 133 | /* |
a36c61f9 KG |
134 | * task management completion handling |
135 | */ | |
136 | #define bfa_tskim_qcomp(__tskim, __cbfn) do { \ | |
137 | bfa_cb_queue((__tskim)->bfa, &(__tskim)->hcb_qe, __cbfn, (__tskim));\ | |
138 | bfa_tskim_notify_comp(__tskim); \ | |
139 | } while (0) | |
140 | ||
141 | #define bfa_tskim_notify_comp(__tskim) do { \ | |
142 | if ((__tskim)->notify) \ | |
143 | bfa_itnim_tskdone((__tskim)->itnim); \ | |
144 | } while (0) | |
145 | ||
146 | ||
147 | enum bfa_tskim_event { | |
148 | BFA_TSKIM_SM_START = 1, /* TM command start */ | |
149 | BFA_TSKIM_SM_DONE = 2, /* TM completion */ | |
150 | BFA_TSKIM_SM_QRESUME = 3, /* resume after qfull */ | |
151 | BFA_TSKIM_SM_HWFAIL = 5, /* IOC h/w failure event */ | |
152 | BFA_TSKIM_SM_HCB = 6, /* BFA callback completion */ | |
153 | BFA_TSKIM_SM_IOS_DONE = 7, /* IO and sub TM completions */ | |
154 | BFA_TSKIM_SM_CLEANUP = 8, /* TM cleanup on ITN offline */ | |
155 | BFA_TSKIM_SM_CLEANUP_DONE = 9, /* TM abort completion */ | |
156 | }; | |
157 | ||
5fbe25c7 | 158 | /* |
a36c61f9 KG |
159 | * forward declaration for BFA ITNIM functions |
160 | */ | |
161 | static void bfa_itnim_iocdisable_cleanup(struct bfa_itnim_s *itnim); | |
162 | static bfa_boolean_t bfa_itnim_send_fwcreate(struct bfa_itnim_s *itnim); | |
163 | static bfa_boolean_t bfa_itnim_send_fwdelete(struct bfa_itnim_s *itnim); | |
164 | static void bfa_itnim_cleanp_comp(void *itnim_cbarg); | |
165 | static void bfa_itnim_cleanup(struct bfa_itnim_s *itnim); | |
166 | static void __bfa_cb_itnim_online(void *cbarg, bfa_boolean_t complete); | |
167 | static void __bfa_cb_itnim_offline(void *cbarg, bfa_boolean_t complete); | |
168 | static void __bfa_cb_itnim_sler(void *cbarg, bfa_boolean_t complete); | |
169 | static void bfa_itnim_iotov_online(struct bfa_itnim_s *itnim); | |
170 | static void bfa_itnim_iotov_cleanup(struct bfa_itnim_s *itnim); | |
171 | static void bfa_itnim_iotov(void *itnim_arg); | |
172 | static void bfa_itnim_iotov_start(struct bfa_itnim_s *itnim); | |
173 | static void bfa_itnim_iotov_stop(struct bfa_itnim_s *itnim); | |
174 | static void bfa_itnim_iotov_delete(struct bfa_itnim_s *itnim); | |
175 | ||
5fbe25c7 | 176 | /* |
a36c61f9 KG |
177 | * forward declaration of ITNIM state machine |
178 | */ | |
179 | static void bfa_itnim_sm_uninit(struct bfa_itnim_s *itnim, | |
180 | enum bfa_itnim_event event); | |
181 | static void bfa_itnim_sm_created(struct bfa_itnim_s *itnim, | |
182 | enum bfa_itnim_event event); | |
183 | static void bfa_itnim_sm_fwcreate(struct bfa_itnim_s *itnim, | |
184 | enum bfa_itnim_event event); | |
185 | static void bfa_itnim_sm_delete_pending(struct bfa_itnim_s *itnim, | |
186 | enum bfa_itnim_event event); | |
187 | static void bfa_itnim_sm_online(struct bfa_itnim_s *itnim, | |
188 | enum bfa_itnim_event event); | |
189 | static void bfa_itnim_sm_sler(struct bfa_itnim_s *itnim, | |
190 | enum bfa_itnim_event event); | |
191 | static void bfa_itnim_sm_cleanup_offline(struct bfa_itnim_s *itnim, | |
192 | enum bfa_itnim_event event); | |
193 | static void bfa_itnim_sm_cleanup_delete(struct bfa_itnim_s *itnim, | |
194 | enum bfa_itnim_event event); | |
195 | static void bfa_itnim_sm_fwdelete(struct bfa_itnim_s *itnim, | |
196 | enum bfa_itnim_event event); | |
197 | static void bfa_itnim_sm_offline(struct bfa_itnim_s *itnim, | |
198 | enum bfa_itnim_event event); | |
199 | static void bfa_itnim_sm_iocdisable(struct bfa_itnim_s *itnim, | |
200 | enum bfa_itnim_event event); | |
201 | static void bfa_itnim_sm_deleting(struct bfa_itnim_s *itnim, | |
202 | enum bfa_itnim_event event); | |
203 | static void bfa_itnim_sm_fwcreate_qfull(struct bfa_itnim_s *itnim, | |
204 | enum bfa_itnim_event event); | |
205 | static void bfa_itnim_sm_fwdelete_qfull(struct bfa_itnim_s *itnim, | |
206 | enum bfa_itnim_event event); | |
207 | static void bfa_itnim_sm_deleting_qfull(struct bfa_itnim_s *itnim, | |
208 | enum bfa_itnim_event event); | |
209 | ||
5fbe25c7 | 210 | /* |
a36c61f9 KG |
211 | * forward declaration for BFA IOIM functions |
212 | */ | |
213 | static bfa_boolean_t bfa_ioim_send_ioreq(struct bfa_ioim_s *ioim); | |
e3e7d3ee | 214 | static bfa_boolean_t bfa_ioim_sgpg_alloc(struct bfa_ioim_s *ioim); |
a36c61f9 KG |
215 | static bfa_boolean_t bfa_ioim_send_abort(struct bfa_ioim_s *ioim); |
216 | static void bfa_ioim_notify_cleanup(struct bfa_ioim_s *ioim); | |
217 | static void __bfa_cb_ioim_good_comp(void *cbarg, bfa_boolean_t complete); | |
218 | static void __bfa_cb_ioim_comp(void *cbarg, bfa_boolean_t complete); | |
219 | static void __bfa_cb_ioim_abort(void *cbarg, bfa_boolean_t complete); | |
220 | static void __bfa_cb_ioim_failed(void *cbarg, bfa_boolean_t complete); | |
221 | static void __bfa_cb_ioim_pathtov(void *cbarg, bfa_boolean_t complete); | |
222 | static bfa_boolean_t bfa_ioim_is_abortable(struct bfa_ioim_s *ioim); | |
223 | ||
5fbe25c7 | 224 | /* |
a36c61f9 KG |
225 | * forward declaration of BFA IO state machine |
226 | */ | |
227 | static void bfa_ioim_sm_uninit(struct bfa_ioim_s *ioim, | |
228 | enum bfa_ioim_event event); | |
229 | static void bfa_ioim_sm_sgalloc(struct bfa_ioim_s *ioim, | |
230 | enum bfa_ioim_event event); | |
231 | static void bfa_ioim_sm_active(struct bfa_ioim_s *ioim, | |
232 | enum bfa_ioim_event event); | |
233 | static void bfa_ioim_sm_abort(struct bfa_ioim_s *ioim, | |
234 | enum bfa_ioim_event event); | |
235 | static void bfa_ioim_sm_cleanup(struct bfa_ioim_s *ioim, | |
236 | enum bfa_ioim_event event); | |
237 | static void bfa_ioim_sm_qfull(struct bfa_ioim_s *ioim, | |
238 | enum bfa_ioim_event event); | |
239 | static void bfa_ioim_sm_abort_qfull(struct bfa_ioim_s *ioim, | |
240 | enum bfa_ioim_event event); | |
241 | static void bfa_ioim_sm_cleanup_qfull(struct bfa_ioim_s *ioim, | |
242 | enum bfa_ioim_event event); | |
243 | static void bfa_ioim_sm_hcb(struct bfa_ioim_s *ioim, | |
244 | enum bfa_ioim_event event); | |
245 | static void bfa_ioim_sm_hcb_free(struct bfa_ioim_s *ioim, | |
246 | enum bfa_ioim_event event); | |
247 | static void bfa_ioim_sm_resfree(struct bfa_ioim_s *ioim, | |
248 | enum bfa_ioim_event event); | |
249 | static void bfa_ioim_sm_cmnd_retry(struct bfa_ioim_s *ioim, | |
250 | enum bfa_ioim_event event); | |
5fbe25c7 | 251 | /* |
a36c61f9 KG |
252 | * forward declaration for BFA TSKIM functions |
253 | */ | |
254 | static void __bfa_cb_tskim_done(void *cbarg, bfa_boolean_t complete); | |
255 | static void __bfa_cb_tskim_failed(void *cbarg, bfa_boolean_t complete); | |
256 | static bfa_boolean_t bfa_tskim_match_scope(struct bfa_tskim_s *tskim, | |
f314878a | 257 | struct scsi_lun lun); |
a36c61f9 KG |
258 | static void bfa_tskim_gather_ios(struct bfa_tskim_s *tskim); |
259 | static void bfa_tskim_cleanp_comp(void *tskim_cbarg); | |
260 | static void bfa_tskim_cleanup_ios(struct bfa_tskim_s *tskim); | |
261 | static bfa_boolean_t bfa_tskim_send(struct bfa_tskim_s *tskim); | |
262 | static bfa_boolean_t bfa_tskim_send_abort(struct bfa_tskim_s *tskim); | |
263 | static void bfa_tskim_iocdisable_ios(struct bfa_tskim_s *tskim); | |
264 | ||
5fbe25c7 | 265 | /* |
a36c61f9 KG |
266 | * forward declaration of BFA TSKIM state machine |
267 | */ | |
268 | static void bfa_tskim_sm_uninit(struct bfa_tskim_s *tskim, | |
269 | enum bfa_tskim_event event); | |
270 | static void bfa_tskim_sm_active(struct bfa_tskim_s *tskim, | |
271 | enum bfa_tskim_event event); | |
272 | static void bfa_tskim_sm_cleanup(struct bfa_tskim_s *tskim, | |
273 | enum bfa_tskim_event event); | |
274 | static void bfa_tskim_sm_iocleanup(struct bfa_tskim_s *tskim, | |
275 | enum bfa_tskim_event event); | |
276 | static void bfa_tskim_sm_qfull(struct bfa_tskim_s *tskim, | |
277 | enum bfa_tskim_event event); | |
278 | static void bfa_tskim_sm_cleanup_qfull(struct bfa_tskim_s *tskim, | |
279 | enum bfa_tskim_event event); | |
280 | static void bfa_tskim_sm_hcb(struct bfa_tskim_s *tskim, | |
281 | enum bfa_tskim_event event); | |
5fbe25c7 | 282 | /* |
df0f1933 | 283 | * BFA FCP Initiator Mode module |
7725ccfd JH |
284 | */ |
285 | ||
5fbe25c7 | 286 | /* |
da99dcc9 | 287 | * Compute and return memory needed by FCP(im) module. |
7725ccfd JH |
288 | */ |
289 | static void | |
290 | bfa_fcpim_meminfo(struct bfa_iocfc_cfg_s *cfg, u32 *km_len, | |
291 | u32 *dm_len) | |
292 | { | |
293 | bfa_itnim_meminfo(cfg, km_len, dm_len); | |
294 | ||
5fbe25c7 | 295 | /* |
7725ccfd JH |
296 | * IO memory |
297 | */ | |
298 | if (cfg->fwcfg.num_ioim_reqs < BFA_IOIM_MIN) | |
299 | cfg->fwcfg.num_ioim_reqs = BFA_IOIM_MIN; | |
300 | else if (cfg->fwcfg.num_ioim_reqs > BFA_IOIM_MAX) | |
301 | cfg->fwcfg.num_ioim_reqs = BFA_IOIM_MAX; | |
302 | ||
303 | *km_len += cfg->fwcfg.num_ioim_reqs * | |
304 | (sizeof(struct bfa_ioim_s) + sizeof(struct bfa_ioim_sp_s)); | |
305 | ||
306 | *dm_len += cfg->fwcfg.num_ioim_reqs * BFI_IOIM_SNSLEN; | |
307 | ||
5fbe25c7 | 308 | /* |
7725ccfd JH |
309 | * task management command memory |
310 | */ | |
311 | if (cfg->fwcfg.num_tskim_reqs < BFA_TSKIM_MIN) | |
312 | cfg->fwcfg.num_tskim_reqs = BFA_TSKIM_MIN; | |
313 | *km_len += cfg->fwcfg.num_tskim_reqs * sizeof(struct bfa_tskim_s); | |
314 | } | |
315 | ||
316 | ||
317 | static void | |
318 | bfa_fcpim_attach(struct bfa_s *bfa, void *bfad, struct bfa_iocfc_cfg_s *cfg, | |
a36c61f9 | 319 | struct bfa_meminfo_s *meminfo, struct bfa_pcidev_s *pcidev) |
7725ccfd JH |
320 | { |
321 | struct bfa_fcpim_mod_s *fcpim = BFA_FCPIM_MOD(bfa); | |
322 | ||
323 | bfa_trc(bfa, cfg->drvcfg.path_tov); | |
324 | bfa_trc(bfa, cfg->fwcfg.num_rports); | |
325 | bfa_trc(bfa, cfg->fwcfg.num_ioim_reqs); | |
326 | bfa_trc(bfa, cfg->fwcfg.num_tskim_reqs); | |
327 | ||
a36c61f9 KG |
328 | fcpim->bfa = bfa; |
329 | fcpim->num_itnims = cfg->fwcfg.num_rports; | |
7725ccfd JH |
330 | fcpim->num_ioim_reqs = cfg->fwcfg.num_ioim_reqs; |
331 | fcpim->num_tskim_reqs = cfg->fwcfg.num_tskim_reqs; | |
a36c61f9 KG |
332 | fcpim->path_tov = cfg->drvcfg.path_tov; |
333 | fcpim->delay_comp = cfg->drvcfg.delay_comp; | |
334 | fcpim->profile_comp = NULL; | |
335 | fcpim->profile_start = NULL; | |
7725ccfd JH |
336 | |
337 | bfa_itnim_attach(fcpim, meminfo); | |
338 | bfa_tskim_attach(fcpim, meminfo); | |
339 | bfa_ioim_attach(fcpim, meminfo); | |
340 | } | |
341 | ||
7725ccfd JH |
342 | static void |
343 | bfa_fcpim_detach(struct bfa_s *bfa) | |
344 | { | |
7725ccfd JH |
345 | } |
346 | ||
347 | static void | |
348 | bfa_fcpim_start(struct bfa_s *bfa) | |
349 | { | |
350 | } | |
351 | ||
352 | static void | |
353 | bfa_fcpim_stop(struct bfa_s *bfa) | |
354 | { | |
355 | } | |
356 | ||
357 | static void | |
358 | bfa_fcpim_iocdisable(struct bfa_s *bfa) | |
359 | { | |
360 | struct bfa_fcpim_mod_s *fcpim = BFA_FCPIM_MOD(bfa); | |
361 | struct bfa_itnim_s *itnim; | |
a36c61f9 | 362 | struct list_head *qe, *qen; |
7725ccfd JH |
363 | |
364 | list_for_each_safe(qe, qen, &fcpim->itnim_q) { | |
365 | itnim = (struct bfa_itnim_s *) qe; | |
366 | bfa_itnim_iocdisable(itnim); | |
367 | } | |
368 | } | |
369 | ||
370 | void | |
371 | bfa_fcpim_path_tov_set(struct bfa_s *bfa, u16 path_tov) | |
372 | { | |
373 | struct bfa_fcpim_mod_s *fcpim = BFA_FCPIM_MOD(bfa); | |
374 | ||
375 | fcpim->path_tov = path_tov * 1000; | |
376 | if (fcpim->path_tov > BFA_FCPIM_PATHTOV_MAX) | |
377 | fcpim->path_tov = BFA_FCPIM_PATHTOV_MAX; | |
378 | } | |
379 | ||
380 | u16 | |
381 | bfa_fcpim_path_tov_get(struct bfa_s *bfa) | |
382 | { | |
383 | struct bfa_fcpim_mod_s *fcpim = BFA_FCPIM_MOD(bfa); | |
384 | ||
f8ceafde | 385 | return fcpim->path_tov / 1000; |
7725ccfd JH |
386 | } |
387 | ||
7725ccfd JH |
388 | u16 |
389 | bfa_fcpim_qdepth_get(struct bfa_s *bfa) | |
390 | { | |
391 | struct bfa_fcpim_mod_s *fcpim = BFA_FCPIM_MOD(bfa); | |
392 | ||
f8ceafde | 393 | return fcpim->q_depth; |
7725ccfd JH |
394 | } |
395 | ||
5fbe25c7 | 396 | /* |
a36c61f9 KG |
397 | * BFA ITNIM module state machine functions |
398 | */ | |
399 | ||
5fbe25c7 | 400 | /* |
da99dcc9 | 401 | * Beginning/unallocated state - no events expected. |
a36c61f9 KG |
402 | */ |
403 | static void | |
404 | bfa_itnim_sm_uninit(struct bfa_itnim_s *itnim, enum bfa_itnim_event event) | |
405 | { | |
406 | bfa_trc(itnim->bfa, itnim->rport->rport_tag); | |
407 | bfa_trc(itnim->bfa, event); | |
408 | ||
409 | switch (event) { | |
410 | case BFA_ITNIM_SM_CREATE: | |
411 | bfa_sm_set_state(itnim, bfa_itnim_sm_created); | |
412 | itnim->is_online = BFA_FALSE; | |
413 | bfa_fcpim_additn(itnim); | |
414 | break; | |
415 | ||
416 | default: | |
417 | bfa_sm_fault(itnim->bfa, event); | |
418 | } | |
419 | } | |
420 | ||
5fbe25c7 | 421 | /* |
da99dcc9 | 422 | * Beginning state, only online event expected. |
a36c61f9 KG |
423 | */ |
424 | static void | |
425 | bfa_itnim_sm_created(struct bfa_itnim_s *itnim, enum bfa_itnim_event event) | |
426 | { | |
427 | bfa_trc(itnim->bfa, itnim->rport->rport_tag); | |
428 | bfa_trc(itnim->bfa, event); | |
429 | ||
430 | switch (event) { | |
431 | case BFA_ITNIM_SM_ONLINE: | |
432 | if (bfa_itnim_send_fwcreate(itnim)) | |
433 | bfa_sm_set_state(itnim, bfa_itnim_sm_fwcreate); | |
434 | else | |
435 | bfa_sm_set_state(itnim, bfa_itnim_sm_fwcreate_qfull); | |
436 | break; | |
437 | ||
438 | case BFA_ITNIM_SM_DELETE: | |
439 | bfa_sm_set_state(itnim, bfa_itnim_sm_uninit); | |
440 | bfa_fcpim_delitn(itnim); | |
441 | break; | |
442 | ||
443 | case BFA_ITNIM_SM_HWFAIL: | |
444 | bfa_sm_set_state(itnim, bfa_itnim_sm_iocdisable); | |
445 | break; | |
446 | ||
447 | default: | |
448 | bfa_sm_fault(itnim->bfa, event); | |
449 | } | |
450 | } | |
451 | ||
5fbe25c7 | 452 | /* |
a36c61f9 KG |
453 | * Waiting for itnim create response from firmware. |
454 | */ | |
455 | static void | |
456 | bfa_itnim_sm_fwcreate(struct bfa_itnim_s *itnim, enum bfa_itnim_event event) | |
457 | { | |
458 | bfa_trc(itnim->bfa, itnim->rport->rport_tag); | |
459 | bfa_trc(itnim->bfa, event); | |
460 | ||
461 | switch (event) { | |
462 | case BFA_ITNIM_SM_FWRSP: | |
463 | bfa_sm_set_state(itnim, bfa_itnim_sm_online); | |
464 | itnim->is_online = BFA_TRUE; | |
465 | bfa_itnim_iotov_online(itnim); | |
466 | bfa_itnim_online_cb(itnim); | |
467 | break; | |
468 | ||
469 | case BFA_ITNIM_SM_DELETE: | |
470 | bfa_sm_set_state(itnim, bfa_itnim_sm_delete_pending); | |
471 | break; | |
472 | ||
473 | case BFA_ITNIM_SM_OFFLINE: | |
474 | if (bfa_itnim_send_fwdelete(itnim)) | |
475 | bfa_sm_set_state(itnim, bfa_itnim_sm_fwdelete); | |
476 | else | |
477 | bfa_sm_set_state(itnim, bfa_itnim_sm_fwdelete_qfull); | |
478 | break; | |
479 | ||
480 | case BFA_ITNIM_SM_HWFAIL: | |
481 | bfa_sm_set_state(itnim, bfa_itnim_sm_iocdisable); | |
482 | break; | |
483 | ||
484 | default: | |
485 | bfa_sm_fault(itnim->bfa, event); | |
486 | } | |
487 | } | |
488 | ||
489 | static void | |
490 | bfa_itnim_sm_fwcreate_qfull(struct bfa_itnim_s *itnim, | |
491 | enum bfa_itnim_event event) | |
492 | { | |
493 | bfa_trc(itnim->bfa, itnim->rport->rport_tag); | |
494 | bfa_trc(itnim->bfa, event); | |
495 | ||
496 | switch (event) { | |
497 | case BFA_ITNIM_SM_QRESUME: | |
498 | bfa_sm_set_state(itnim, bfa_itnim_sm_fwcreate); | |
499 | bfa_itnim_send_fwcreate(itnim); | |
500 | break; | |
501 | ||
502 | case BFA_ITNIM_SM_DELETE: | |
503 | bfa_sm_set_state(itnim, bfa_itnim_sm_uninit); | |
504 | bfa_reqq_wcancel(&itnim->reqq_wait); | |
505 | bfa_fcpim_delitn(itnim); | |
506 | break; | |
507 | ||
508 | case BFA_ITNIM_SM_OFFLINE: | |
509 | bfa_sm_set_state(itnim, bfa_itnim_sm_offline); | |
510 | bfa_reqq_wcancel(&itnim->reqq_wait); | |
511 | bfa_itnim_offline_cb(itnim); | |
512 | break; | |
513 | ||
514 | case BFA_ITNIM_SM_HWFAIL: | |
515 | bfa_sm_set_state(itnim, bfa_itnim_sm_iocdisable); | |
516 | bfa_reqq_wcancel(&itnim->reqq_wait); | |
517 | break; | |
518 | ||
519 | default: | |
520 | bfa_sm_fault(itnim->bfa, event); | |
521 | } | |
522 | } | |
523 | ||
5fbe25c7 | 524 | /* |
da99dcc9 | 525 | * Waiting for itnim create response from firmware, a delete is pending. |
a36c61f9 KG |
526 | */ |
527 | static void | |
528 | bfa_itnim_sm_delete_pending(struct bfa_itnim_s *itnim, | |
529 | enum bfa_itnim_event event) | |
530 | { | |
531 | bfa_trc(itnim->bfa, itnim->rport->rport_tag); | |
532 | bfa_trc(itnim->bfa, event); | |
533 | ||
534 | switch (event) { | |
535 | case BFA_ITNIM_SM_FWRSP: | |
536 | if (bfa_itnim_send_fwdelete(itnim)) | |
537 | bfa_sm_set_state(itnim, bfa_itnim_sm_deleting); | |
538 | else | |
539 | bfa_sm_set_state(itnim, bfa_itnim_sm_deleting_qfull); | |
540 | break; | |
541 | ||
542 | case BFA_ITNIM_SM_HWFAIL: | |
543 | bfa_sm_set_state(itnim, bfa_itnim_sm_uninit); | |
544 | bfa_fcpim_delitn(itnim); | |
545 | break; | |
546 | ||
547 | default: | |
548 | bfa_sm_fault(itnim->bfa, event); | |
549 | } | |
550 | } | |
551 | ||
5fbe25c7 | 552 | /* |
da99dcc9 | 553 | * Online state - normal parking state. |
a36c61f9 KG |
554 | */ |
555 | static void | |
556 | bfa_itnim_sm_online(struct bfa_itnim_s *itnim, enum bfa_itnim_event event) | |
557 | { | |
558 | bfa_trc(itnim->bfa, itnim->rport->rport_tag); | |
559 | bfa_trc(itnim->bfa, event); | |
560 | ||
561 | switch (event) { | |
562 | case BFA_ITNIM_SM_OFFLINE: | |
563 | bfa_sm_set_state(itnim, bfa_itnim_sm_cleanup_offline); | |
564 | itnim->is_online = BFA_FALSE; | |
565 | bfa_itnim_iotov_start(itnim); | |
566 | bfa_itnim_cleanup(itnim); | |
567 | break; | |
568 | ||
569 | case BFA_ITNIM_SM_DELETE: | |
570 | bfa_sm_set_state(itnim, bfa_itnim_sm_cleanup_delete); | |
571 | itnim->is_online = BFA_FALSE; | |
572 | bfa_itnim_cleanup(itnim); | |
573 | break; | |
574 | ||
575 | case BFA_ITNIM_SM_SLER: | |
576 | bfa_sm_set_state(itnim, bfa_itnim_sm_sler); | |
577 | itnim->is_online = BFA_FALSE; | |
578 | bfa_itnim_iotov_start(itnim); | |
579 | bfa_itnim_sler_cb(itnim); | |
580 | break; | |
581 | ||
582 | case BFA_ITNIM_SM_HWFAIL: | |
583 | bfa_sm_set_state(itnim, bfa_itnim_sm_iocdisable); | |
584 | itnim->is_online = BFA_FALSE; | |
585 | bfa_itnim_iotov_start(itnim); | |
586 | bfa_itnim_iocdisable_cleanup(itnim); | |
587 | break; | |
588 | ||
589 | default: | |
590 | bfa_sm_fault(itnim->bfa, event); | |
591 | } | |
592 | } | |
593 | ||
5fbe25c7 | 594 | /* |
da99dcc9 | 595 | * Second level error recovery need. |
a36c61f9 KG |
596 | */ |
597 | static void | |
598 | bfa_itnim_sm_sler(struct bfa_itnim_s *itnim, enum bfa_itnim_event event) | |
599 | { | |
600 | bfa_trc(itnim->bfa, itnim->rport->rport_tag); | |
601 | bfa_trc(itnim->bfa, event); | |
602 | ||
603 | switch (event) { | |
604 | case BFA_ITNIM_SM_OFFLINE: | |
605 | bfa_sm_set_state(itnim, bfa_itnim_sm_cleanup_offline); | |
606 | bfa_itnim_cleanup(itnim); | |
607 | break; | |
608 | ||
609 | case BFA_ITNIM_SM_DELETE: | |
610 | bfa_sm_set_state(itnim, bfa_itnim_sm_cleanup_delete); | |
611 | bfa_itnim_cleanup(itnim); | |
612 | bfa_itnim_iotov_delete(itnim); | |
613 | break; | |
614 | ||
615 | case BFA_ITNIM_SM_HWFAIL: | |
616 | bfa_sm_set_state(itnim, bfa_itnim_sm_iocdisable); | |
617 | bfa_itnim_iocdisable_cleanup(itnim); | |
618 | break; | |
619 | ||
620 | default: | |
621 | bfa_sm_fault(itnim->bfa, event); | |
622 | } | |
623 | } | |
624 | ||
5fbe25c7 | 625 | /* |
da99dcc9 | 626 | * Going offline. Waiting for active IO cleanup. |
a36c61f9 KG |
627 | */ |
628 | static void | |
629 | bfa_itnim_sm_cleanup_offline(struct bfa_itnim_s *itnim, | |
630 | enum bfa_itnim_event event) | |
631 | { | |
632 | bfa_trc(itnim->bfa, itnim->rport->rport_tag); | |
633 | bfa_trc(itnim->bfa, event); | |
634 | ||
635 | switch (event) { | |
636 | case BFA_ITNIM_SM_CLEANUP: | |
637 | if (bfa_itnim_send_fwdelete(itnim)) | |
638 | bfa_sm_set_state(itnim, bfa_itnim_sm_fwdelete); | |
639 | else | |
640 | bfa_sm_set_state(itnim, bfa_itnim_sm_fwdelete_qfull); | |
641 | break; | |
642 | ||
643 | case BFA_ITNIM_SM_DELETE: | |
644 | bfa_sm_set_state(itnim, bfa_itnim_sm_cleanup_delete); | |
645 | bfa_itnim_iotov_delete(itnim); | |
646 | break; | |
647 | ||
648 | case BFA_ITNIM_SM_HWFAIL: | |
649 | bfa_sm_set_state(itnim, bfa_itnim_sm_iocdisable); | |
650 | bfa_itnim_iocdisable_cleanup(itnim); | |
651 | bfa_itnim_offline_cb(itnim); | |
652 | break; | |
653 | ||
654 | case BFA_ITNIM_SM_SLER: | |
655 | break; | |
656 | ||
657 | default: | |
658 | bfa_sm_fault(itnim->bfa, event); | |
659 | } | |
660 | } | |
661 | ||
5fbe25c7 | 662 | /* |
da99dcc9 | 663 | * Deleting itnim. Waiting for active IO cleanup. |
a36c61f9 KG |
664 | */ |
665 | static void | |
666 | bfa_itnim_sm_cleanup_delete(struct bfa_itnim_s *itnim, | |
667 | enum bfa_itnim_event event) | |
668 | { | |
669 | bfa_trc(itnim->bfa, itnim->rport->rport_tag); | |
670 | bfa_trc(itnim->bfa, event); | |
671 | ||
672 | switch (event) { | |
673 | case BFA_ITNIM_SM_CLEANUP: | |
674 | if (bfa_itnim_send_fwdelete(itnim)) | |
675 | bfa_sm_set_state(itnim, bfa_itnim_sm_deleting); | |
676 | else | |
677 | bfa_sm_set_state(itnim, bfa_itnim_sm_deleting_qfull); | |
678 | break; | |
679 | ||
680 | case BFA_ITNIM_SM_HWFAIL: | |
681 | bfa_sm_set_state(itnim, bfa_itnim_sm_iocdisable); | |
682 | bfa_itnim_iocdisable_cleanup(itnim); | |
683 | break; | |
684 | ||
685 | default: | |
686 | bfa_sm_fault(itnim->bfa, event); | |
687 | } | |
688 | } | |
689 | ||
5fbe25c7 | 690 | /* |
a36c61f9 KG |
691 | * Rport offline. Fimrware itnim is being deleted - awaiting f/w response. |
692 | */ | |
693 | static void | |
694 | bfa_itnim_sm_fwdelete(struct bfa_itnim_s *itnim, enum bfa_itnim_event event) | |
695 | { | |
696 | bfa_trc(itnim->bfa, itnim->rport->rport_tag); | |
697 | bfa_trc(itnim->bfa, event); | |
698 | ||
699 | switch (event) { | |
700 | case BFA_ITNIM_SM_FWRSP: | |
701 | bfa_sm_set_state(itnim, bfa_itnim_sm_offline); | |
702 | bfa_itnim_offline_cb(itnim); | |
703 | break; | |
704 | ||
705 | case BFA_ITNIM_SM_DELETE: | |
706 | bfa_sm_set_state(itnim, bfa_itnim_sm_deleting); | |
707 | break; | |
708 | ||
709 | case BFA_ITNIM_SM_HWFAIL: | |
710 | bfa_sm_set_state(itnim, bfa_itnim_sm_iocdisable); | |
711 | bfa_itnim_offline_cb(itnim); | |
712 | break; | |
713 | ||
714 | default: | |
715 | bfa_sm_fault(itnim->bfa, event); | |
716 | } | |
717 | } | |
718 | ||
719 | static void | |
720 | bfa_itnim_sm_fwdelete_qfull(struct bfa_itnim_s *itnim, | |
721 | enum bfa_itnim_event event) | |
722 | { | |
723 | bfa_trc(itnim->bfa, itnim->rport->rport_tag); | |
724 | bfa_trc(itnim->bfa, event); | |
725 | ||
726 | switch (event) { | |
727 | case BFA_ITNIM_SM_QRESUME: | |
728 | bfa_sm_set_state(itnim, bfa_itnim_sm_fwdelete); | |
729 | bfa_itnim_send_fwdelete(itnim); | |
730 | break; | |
731 | ||
732 | case BFA_ITNIM_SM_DELETE: | |
733 | bfa_sm_set_state(itnim, bfa_itnim_sm_deleting_qfull); | |
734 | break; | |
735 | ||
736 | case BFA_ITNIM_SM_HWFAIL: | |
737 | bfa_sm_set_state(itnim, bfa_itnim_sm_iocdisable); | |
738 | bfa_reqq_wcancel(&itnim->reqq_wait); | |
739 | bfa_itnim_offline_cb(itnim); | |
740 | break; | |
741 | ||
742 | default: | |
743 | bfa_sm_fault(itnim->bfa, event); | |
744 | } | |
745 | } | |
746 | ||
5fbe25c7 | 747 | /* |
da99dcc9 | 748 | * Offline state. |
a36c61f9 KG |
749 | */ |
750 | static void | |
751 | bfa_itnim_sm_offline(struct bfa_itnim_s *itnim, enum bfa_itnim_event event) | |
752 | { | |
753 | bfa_trc(itnim->bfa, itnim->rport->rport_tag); | |
754 | bfa_trc(itnim->bfa, event); | |
755 | ||
756 | switch (event) { | |
757 | case BFA_ITNIM_SM_DELETE: | |
758 | bfa_sm_set_state(itnim, bfa_itnim_sm_uninit); | |
759 | bfa_itnim_iotov_delete(itnim); | |
760 | bfa_fcpim_delitn(itnim); | |
761 | break; | |
762 | ||
763 | case BFA_ITNIM_SM_ONLINE: | |
764 | if (bfa_itnim_send_fwcreate(itnim)) | |
765 | bfa_sm_set_state(itnim, bfa_itnim_sm_fwcreate); | |
766 | else | |
767 | bfa_sm_set_state(itnim, bfa_itnim_sm_fwcreate_qfull); | |
768 | break; | |
769 | ||
770 | case BFA_ITNIM_SM_HWFAIL: | |
771 | bfa_sm_set_state(itnim, bfa_itnim_sm_iocdisable); | |
772 | break; | |
773 | ||
774 | default: | |
775 | bfa_sm_fault(itnim->bfa, event); | |
776 | } | |
777 | } | |
778 | ||
a36c61f9 KG |
779 | static void |
780 | bfa_itnim_sm_iocdisable(struct bfa_itnim_s *itnim, | |
781 | enum bfa_itnim_event event) | |
782 | { | |
783 | bfa_trc(itnim->bfa, itnim->rport->rport_tag); | |
784 | bfa_trc(itnim->bfa, event); | |
785 | ||
786 | switch (event) { | |
787 | case BFA_ITNIM_SM_DELETE: | |
788 | bfa_sm_set_state(itnim, bfa_itnim_sm_uninit); | |
789 | bfa_itnim_iotov_delete(itnim); | |
790 | bfa_fcpim_delitn(itnim); | |
791 | break; | |
792 | ||
793 | case BFA_ITNIM_SM_OFFLINE: | |
794 | bfa_itnim_offline_cb(itnim); | |
795 | break; | |
796 | ||
797 | case BFA_ITNIM_SM_ONLINE: | |
798 | if (bfa_itnim_send_fwcreate(itnim)) | |
799 | bfa_sm_set_state(itnim, bfa_itnim_sm_fwcreate); | |
800 | else | |
801 | bfa_sm_set_state(itnim, bfa_itnim_sm_fwcreate_qfull); | |
802 | break; | |
803 | ||
804 | case BFA_ITNIM_SM_HWFAIL: | |
805 | break; | |
806 | ||
807 | default: | |
808 | bfa_sm_fault(itnim->bfa, event); | |
809 | } | |
810 | } | |
811 | ||
5fbe25c7 | 812 | /* |
da99dcc9 | 813 | * Itnim is deleted, waiting for firmware response to delete. |
a36c61f9 KG |
814 | */ |
815 | static void | |
816 | bfa_itnim_sm_deleting(struct bfa_itnim_s *itnim, enum bfa_itnim_event event) | |
817 | { | |
818 | bfa_trc(itnim->bfa, itnim->rport->rport_tag); | |
819 | bfa_trc(itnim->bfa, event); | |
820 | ||
821 | switch (event) { | |
822 | case BFA_ITNIM_SM_FWRSP: | |
823 | case BFA_ITNIM_SM_HWFAIL: | |
824 | bfa_sm_set_state(itnim, bfa_itnim_sm_uninit); | |
825 | bfa_fcpim_delitn(itnim); | |
826 | break; | |
827 | ||
828 | default: | |
829 | bfa_sm_fault(itnim->bfa, event); | |
830 | } | |
831 | } | |
832 | ||
833 | static void | |
834 | bfa_itnim_sm_deleting_qfull(struct bfa_itnim_s *itnim, | |
835 | enum bfa_itnim_event event) | |
836 | { | |
837 | bfa_trc(itnim->bfa, itnim->rport->rport_tag); | |
838 | bfa_trc(itnim->bfa, event); | |
839 | ||
840 | switch (event) { | |
841 | case BFA_ITNIM_SM_QRESUME: | |
842 | bfa_sm_set_state(itnim, bfa_itnim_sm_deleting); | |
843 | bfa_itnim_send_fwdelete(itnim); | |
844 | break; | |
845 | ||
846 | case BFA_ITNIM_SM_HWFAIL: | |
847 | bfa_sm_set_state(itnim, bfa_itnim_sm_uninit); | |
848 | bfa_reqq_wcancel(&itnim->reqq_wait); | |
849 | bfa_fcpim_delitn(itnim); | |
850 | break; | |
851 | ||
852 | default: | |
853 | bfa_sm_fault(itnim->bfa, event); | |
854 | } | |
855 | } | |
856 | ||
5fbe25c7 | 857 | /* |
da99dcc9 | 858 | * Initiate cleanup of all IOs on an IOC failure. |
a36c61f9 KG |
859 | */ |
860 | static void | |
861 | bfa_itnim_iocdisable_cleanup(struct bfa_itnim_s *itnim) | |
862 | { | |
863 | struct bfa_tskim_s *tskim; | |
864 | struct bfa_ioim_s *ioim; | |
865 | struct list_head *qe, *qen; | |
866 | ||
867 | list_for_each_safe(qe, qen, &itnim->tsk_q) { | |
868 | tskim = (struct bfa_tskim_s *) qe; | |
869 | bfa_tskim_iocdisable(tskim); | |
870 | } | |
871 | ||
872 | list_for_each_safe(qe, qen, &itnim->io_q) { | |
873 | ioim = (struct bfa_ioim_s *) qe; | |
874 | bfa_ioim_iocdisable(ioim); | |
875 | } | |
876 | ||
5fbe25c7 | 877 | /* |
a36c61f9 KG |
878 | * For IO request in pending queue, we pretend an early timeout. |
879 | */ | |
880 | list_for_each_safe(qe, qen, &itnim->pending_q) { | |
881 | ioim = (struct bfa_ioim_s *) qe; | |
882 | bfa_ioim_tov(ioim); | |
883 | } | |
884 | ||
885 | list_for_each_safe(qe, qen, &itnim->io_cleanup_q) { | |
886 | ioim = (struct bfa_ioim_s *) qe; | |
887 | bfa_ioim_iocdisable(ioim); | |
888 | } | |
889 | } | |
890 | ||
5fbe25c7 | 891 | /* |
da99dcc9 | 892 | * IO cleanup completion |
a36c61f9 KG |
893 | */ |
894 | static void | |
895 | bfa_itnim_cleanp_comp(void *itnim_cbarg) | |
896 | { | |
897 | struct bfa_itnim_s *itnim = itnim_cbarg; | |
898 | ||
899 | bfa_stats(itnim, cleanup_comps); | |
900 | bfa_sm_send_event(itnim, BFA_ITNIM_SM_CLEANUP); | |
901 | } | |
902 | ||
5fbe25c7 | 903 | /* |
da99dcc9 | 904 | * Initiate cleanup of all IOs. |
a36c61f9 KG |
905 | */ |
906 | static void | |
907 | bfa_itnim_cleanup(struct bfa_itnim_s *itnim) | |
908 | { | |
909 | struct bfa_ioim_s *ioim; | |
910 | struct bfa_tskim_s *tskim; | |
911 | struct list_head *qe, *qen; | |
912 | ||
913 | bfa_wc_init(&itnim->wc, bfa_itnim_cleanp_comp, itnim); | |
914 | ||
915 | list_for_each_safe(qe, qen, &itnim->io_q) { | |
916 | ioim = (struct bfa_ioim_s *) qe; | |
917 | ||
5fbe25c7 | 918 | /* |
a36c61f9 KG |
919 | * Move IO to a cleanup queue from active queue so that a later |
920 | * TM will not pickup this IO. | |
921 | */ | |
922 | list_del(&ioim->qe); | |
923 | list_add_tail(&ioim->qe, &itnim->io_cleanup_q); | |
924 | ||
925 | bfa_wc_up(&itnim->wc); | |
926 | bfa_ioim_cleanup(ioim); | |
927 | } | |
928 | ||
929 | list_for_each_safe(qe, qen, &itnim->tsk_q) { | |
930 | tskim = (struct bfa_tskim_s *) qe; | |
931 | bfa_wc_up(&itnim->wc); | |
932 | bfa_tskim_cleanup(tskim); | |
933 | } | |
934 | ||
935 | bfa_wc_wait(&itnim->wc); | |
936 | } | |
937 | ||
938 | static void | |
939 | __bfa_cb_itnim_online(void *cbarg, bfa_boolean_t complete) | |
940 | { | |
941 | struct bfa_itnim_s *itnim = cbarg; | |
942 | ||
943 | if (complete) | |
944 | bfa_cb_itnim_online(itnim->ditn); | |
945 | } | |
946 | ||
947 | static void | |
948 | __bfa_cb_itnim_offline(void *cbarg, bfa_boolean_t complete) | |
949 | { | |
950 | struct bfa_itnim_s *itnim = cbarg; | |
951 | ||
952 | if (complete) | |
953 | bfa_cb_itnim_offline(itnim->ditn); | |
954 | } | |
955 | ||
956 | static void | |
957 | __bfa_cb_itnim_sler(void *cbarg, bfa_boolean_t complete) | |
958 | { | |
959 | struct bfa_itnim_s *itnim = cbarg; | |
960 | ||
961 | if (complete) | |
962 | bfa_cb_itnim_sler(itnim->ditn); | |
963 | } | |
964 | ||
5fbe25c7 | 965 | /* |
a36c61f9 KG |
966 | * Call to resume any I/O requests waiting for room in request queue. |
967 | */ | |
968 | static void | |
969 | bfa_itnim_qresume(void *cbarg) | |
970 | { | |
971 | struct bfa_itnim_s *itnim = cbarg; | |
972 | ||
973 | bfa_sm_send_event(itnim, BFA_ITNIM_SM_QRESUME); | |
974 | } | |
975 | ||
5fbe25c7 | 976 | /* |
a36c61f9 KG |
977 | * bfa_itnim_public |
978 | */ | |
979 | ||
980 | void | |
981 | bfa_itnim_iodone(struct bfa_itnim_s *itnim) | |
982 | { | |
983 | bfa_wc_down(&itnim->wc); | |
984 | } | |
985 | ||
986 | void | |
987 | bfa_itnim_tskdone(struct bfa_itnim_s *itnim) | |
988 | { | |
989 | bfa_wc_down(&itnim->wc); | |
990 | } | |
991 | ||
992 | void | |
993 | bfa_itnim_meminfo(struct bfa_iocfc_cfg_s *cfg, u32 *km_len, | |
994 | u32 *dm_len) | |
995 | { | |
5fbe25c7 | 996 | /* |
a36c61f9 KG |
997 | * ITN memory |
998 | */ | |
999 | *km_len += cfg->fwcfg.num_rports * sizeof(struct bfa_itnim_s); | |
1000 | } | |
1001 | ||
1002 | void | |
1003 | bfa_itnim_attach(struct bfa_fcpim_mod_s *fcpim, struct bfa_meminfo_s *minfo) | |
1004 | { | |
1005 | struct bfa_s *bfa = fcpim->bfa; | |
1006 | struct bfa_itnim_s *itnim; | |
1007 | int i, j; | |
1008 | ||
1009 | INIT_LIST_HEAD(&fcpim->itnim_q); | |
1010 | ||
1011 | itnim = (struct bfa_itnim_s *) bfa_meminfo_kva(minfo); | |
1012 | fcpim->itnim_arr = itnim; | |
1013 | ||
1014 | for (i = 0; i < fcpim->num_itnims; i++, itnim++) { | |
6a18b167 | 1015 | memset(itnim, 0, sizeof(struct bfa_itnim_s)); |
a36c61f9 KG |
1016 | itnim->bfa = bfa; |
1017 | itnim->fcpim = fcpim; | |
1018 | itnim->reqq = BFA_REQQ_QOS_LO; | |
1019 | itnim->rport = BFA_RPORT_FROM_TAG(bfa, i); | |
1020 | itnim->iotov_active = BFA_FALSE; | |
1021 | bfa_reqq_winit(&itnim->reqq_wait, bfa_itnim_qresume, itnim); | |
1022 | ||
1023 | INIT_LIST_HEAD(&itnim->io_q); | |
1024 | INIT_LIST_HEAD(&itnim->io_cleanup_q); | |
1025 | INIT_LIST_HEAD(&itnim->pending_q); | |
1026 | INIT_LIST_HEAD(&itnim->tsk_q); | |
1027 | INIT_LIST_HEAD(&itnim->delay_comp_q); | |
1028 | for (j = 0; j < BFA_IOBUCKET_MAX; j++) | |
1029 | itnim->ioprofile.io_latency.min[j] = ~0; | |
1030 | bfa_sm_set_state(itnim, bfa_itnim_sm_uninit); | |
1031 | } | |
1032 | ||
1033 | bfa_meminfo_kva(minfo) = (u8 *) itnim; | |
1034 | } | |
1035 | ||
1036 | void | |
1037 | bfa_itnim_iocdisable(struct bfa_itnim_s *itnim) | |
1038 | { | |
1039 | bfa_stats(itnim, ioc_disabled); | |
1040 | bfa_sm_send_event(itnim, BFA_ITNIM_SM_HWFAIL); | |
1041 | } | |
1042 | ||
1043 | static bfa_boolean_t | |
1044 | bfa_itnim_send_fwcreate(struct bfa_itnim_s *itnim) | |
1045 | { | |
1046 | struct bfi_itnim_create_req_s *m; | |
1047 | ||
1048 | itnim->msg_no++; | |
1049 | ||
5fbe25c7 | 1050 | /* |
a36c61f9 KG |
1051 | * check for room in queue to send request now |
1052 | */ | |
1053 | m = bfa_reqq_next(itnim->bfa, itnim->reqq); | |
1054 | if (!m) { | |
1055 | bfa_reqq_wait(itnim->bfa, itnim->reqq, &itnim->reqq_wait); | |
1056 | return BFA_FALSE; | |
1057 | } | |
1058 | ||
1059 | bfi_h2i_set(m->mh, BFI_MC_ITNIM, BFI_ITNIM_H2I_CREATE_REQ, | |
1060 | bfa_lpuid(itnim->bfa)); | |
1061 | m->fw_handle = itnim->rport->fw_handle; | |
1062 | m->class = FC_CLASS_3; | |
1063 | m->seq_rec = itnim->seq_rec; | |
1064 | m->msg_no = itnim->msg_no; | |
1065 | bfa_stats(itnim, fw_create); | |
1066 | ||
5fbe25c7 | 1067 | /* |
a36c61f9 KG |
1068 | * queue I/O message to firmware |
1069 | */ | |
1070 | bfa_reqq_produce(itnim->bfa, itnim->reqq); | |
1071 | return BFA_TRUE; | |
1072 | } | |
1073 | ||
1074 | static bfa_boolean_t | |
1075 | bfa_itnim_send_fwdelete(struct bfa_itnim_s *itnim) | |
1076 | { | |
1077 | struct bfi_itnim_delete_req_s *m; | |
1078 | ||
5fbe25c7 | 1079 | /* |
a36c61f9 KG |
1080 | * check for room in queue to send request now |
1081 | */ | |
1082 | m = bfa_reqq_next(itnim->bfa, itnim->reqq); | |
1083 | if (!m) { | |
1084 | bfa_reqq_wait(itnim->bfa, itnim->reqq, &itnim->reqq_wait); | |
1085 | return BFA_FALSE; | |
1086 | } | |
1087 | ||
1088 | bfi_h2i_set(m->mh, BFI_MC_ITNIM, BFI_ITNIM_H2I_DELETE_REQ, | |
1089 | bfa_lpuid(itnim->bfa)); | |
1090 | m->fw_handle = itnim->rport->fw_handle; | |
1091 | bfa_stats(itnim, fw_delete); | |
1092 | ||
5fbe25c7 | 1093 | /* |
a36c61f9 KG |
1094 | * queue I/O message to firmware |
1095 | */ | |
1096 | bfa_reqq_produce(itnim->bfa, itnim->reqq); | |
1097 | return BFA_TRUE; | |
1098 | } | |
1099 | ||
5fbe25c7 | 1100 | /* |
a36c61f9 KG |
1101 | * Cleanup all pending failed inflight requests. |
1102 | */ | |
1103 | static void | |
1104 | bfa_itnim_delayed_comp(struct bfa_itnim_s *itnim, bfa_boolean_t iotov) | |
1105 | { | |
1106 | struct bfa_ioim_s *ioim; | |
1107 | struct list_head *qe, *qen; | |
1108 | ||
1109 | list_for_each_safe(qe, qen, &itnim->delay_comp_q) { | |
1110 | ioim = (struct bfa_ioim_s *)qe; | |
1111 | bfa_ioim_delayed_comp(ioim, iotov); | |
1112 | } | |
1113 | } | |
1114 | ||
5fbe25c7 | 1115 | /* |
a36c61f9 KG |
1116 | * Start all pending IO requests. |
1117 | */ | |
1118 | static void | |
1119 | bfa_itnim_iotov_online(struct bfa_itnim_s *itnim) | |
1120 | { | |
1121 | struct bfa_ioim_s *ioim; | |
1122 | ||
1123 | bfa_itnim_iotov_stop(itnim); | |
1124 | ||
5fbe25c7 | 1125 | /* |
a36c61f9 KG |
1126 | * Abort all inflight IO requests in the queue |
1127 | */ | |
1128 | bfa_itnim_delayed_comp(itnim, BFA_FALSE); | |
1129 | ||
5fbe25c7 | 1130 | /* |
a36c61f9 KG |
1131 | * Start all pending IO requests. |
1132 | */ | |
1133 | while (!list_empty(&itnim->pending_q)) { | |
1134 | bfa_q_deq(&itnim->pending_q, &ioim); | |
1135 | list_add_tail(&ioim->qe, &itnim->io_q); | |
1136 | bfa_ioim_start(ioim); | |
1137 | } | |
1138 | } | |
1139 | ||
5fbe25c7 | 1140 | /* |
a36c61f9 KG |
1141 | * Fail all pending IO requests |
1142 | */ | |
1143 | static void | |
1144 | bfa_itnim_iotov_cleanup(struct bfa_itnim_s *itnim) | |
1145 | { | |
1146 | struct bfa_ioim_s *ioim; | |
1147 | ||
5fbe25c7 | 1148 | /* |
a36c61f9 KG |
1149 | * Fail all inflight IO requests in the queue |
1150 | */ | |
1151 | bfa_itnim_delayed_comp(itnim, BFA_TRUE); | |
1152 | ||
5fbe25c7 | 1153 | /* |
a36c61f9 KG |
1154 | * Fail any pending IO requests. |
1155 | */ | |
1156 | while (!list_empty(&itnim->pending_q)) { | |
1157 | bfa_q_deq(&itnim->pending_q, &ioim); | |
1158 | list_add_tail(&ioim->qe, &ioim->fcpim->ioim_comp_q); | |
1159 | bfa_ioim_tov(ioim); | |
1160 | } | |
1161 | } | |
1162 | ||
5fbe25c7 | 1163 | /* |
a36c61f9 KG |
1164 | * IO TOV timer callback. Fail any pending IO requests. |
1165 | */ | |
1166 | static void | |
1167 | bfa_itnim_iotov(void *itnim_arg) | |
1168 | { | |
1169 | struct bfa_itnim_s *itnim = itnim_arg; | |
1170 | ||
1171 | itnim->iotov_active = BFA_FALSE; | |
1172 | ||
1173 | bfa_cb_itnim_tov_begin(itnim->ditn); | |
1174 | bfa_itnim_iotov_cleanup(itnim); | |
1175 | bfa_cb_itnim_tov(itnim->ditn); | |
1176 | } | |
1177 | ||
5fbe25c7 | 1178 | /* |
a36c61f9 KG |
1179 | * Start IO TOV timer for failing back pending IO requests in offline state. |
1180 | */ | |
1181 | static void | |
1182 | bfa_itnim_iotov_start(struct bfa_itnim_s *itnim) | |
1183 | { | |
1184 | if (itnim->fcpim->path_tov > 0) { | |
1185 | ||
1186 | itnim->iotov_active = BFA_TRUE; | |
1187 | bfa_assert(bfa_itnim_hold_io(itnim)); | |
1188 | bfa_timer_start(itnim->bfa, &itnim->timer, | |
1189 | bfa_itnim_iotov, itnim, itnim->fcpim->path_tov); | |
1190 | } | |
1191 | } | |
1192 | ||
5fbe25c7 | 1193 | /* |
a36c61f9 KG |
1194 | * Stop IO TOV timer. |
1195 | */ | |
1196 | static void | |
1197 | bfa_itnim_iotov_stop(struct bfa_itnim_s *itnim) | |
1198 | { | |
1199 | if (itnim->iotov_active) { | |
1200 | itnim->iotov_active = BFA_FALSE; | |
1201 | bfa_timer_stop(&itnim->timer); | |
1202 | } | |
1203 | } | |
1204 | ||
5fbe25c7 | 1205 | /* |
a36c61f9 KG |
1206 | * Stop IO TOV timer. |
1207 | */ | |
1208 | static void | |
1209 | bfa_itnim_iotov_delete(struct bfa_itnim_s *itnim) | |
1210 | { | |
1211 | bfa_boolean_t pathtov_active = BFA_FALSE; | |
1212 | ||
1213 | if (itnim->iotov_active) | |
1214 | pathtov_active = BFA_TRUE; | |
1215 | ||
1216 | bfa_itnim_iotov_stop(itnim); | |
1217 | if (pathtov_active) | |
1218 | bfa_cb_itnim_tov_begin(itnim->ditn); | |
1219 | bfa_itnim_iotov_cleanup(itnim); | |
1220 | if (pathtov_active) | |
1221 | bfa_cb_itnim_tov(itnim->ditn); | |
1222 | } | |
1223 | ||
1224 | static void | |
1225 | bfa_itnim_update_del_itn_stats(struct bfa_itnim_s *itnim) | |
1226 | { | |
1227 | struct bfa_fcpim_mod_s *fcpim = BFA_FCPIM_MOD(itnim->bfa); | |
1228 | fcpim->del_itn_stats.del_itn_iocomp_aborted += | |
1229 | itnim->stats.iocomp_aborted; | |
1230 | fcpim->del_itn_stats.del_itn_iocomp_timedout += | |
1231 | itnim->stats.iocomp_timedout; | |
1232 | fcpim->del_itn_stats.del_itn_iocom_sqer_needed += | |
1233 | itnim->stats.iocom_sqer_needed; | |
1234 | fcpim->del_itn_stats.del_itn_iocom_res_free += | |
1235 | itnim->stats.iocom_res_free; | |
1236 | fcpim->del_itn_stats.del_itn_iocom_hostabrts += | |
1237 | itnim->stats.iocom_hostabrts; | |
1238 | fcpim->del_itn_stats.del_itn_total_ios += itnim->stats.total_ios; | |
1239 | fcpim->del_itn_stats.del_io_iocdowns += itnim->stats.io_iocdowns; | |
1240 | fcpim->del_itn_stats.del_tm_iocdowns += itnim->stats.tm_iocdowns; | |
1241 | } | |
1242 | ||
5fbe25c7 | 1243 | /* |
da99dcc9 | 1244 | * bfa_itnim_public |
a36c61f9 KG |
1245 | */ |
1246 | ||
5fbe25c7 | 1247 | /* |
da99dcc9 | 1248 | * Itnim interrupt processing. |
a36c61f9 KG |
1249 | */ |
1250 | void | |
1251 | bfa_itnim_isr(struct bfa_s *bfa, struct bfi_msg_s *m) | |
1252 | { | |
1253 | struct bfa_fcpim_mod_s *fcpim = BFA_FCPIM_MOD(bfa); | |
1254 | union bfi_itnim_i2h_msg_u msg; | |
1255 | struct bfa_itnim_s *itnim; | |
1256 | ||
1257 | bfa_trc(bfa, m->mhdr.msg_id); | |
1258 | ||
1259 | msg.msg = m; | |
1260 | ||
1261 | switch (m->mhdr.msg_id) { | |
1262 | case BFI_ITNIM_I2H_CREATE_RSP: | |
1263 | itnim = BFA_ITNIM_FROM_TAG(fcpim, | |
1264 | msg.create_rsp->bfa_handle); | |
1265 | bfa_assert(msg.create_rsp->status == BFA_STATUS_OK); | |
1266 | bfa_stats(itnim, create_comps); | |
1267 | bfa_sm_send_event(itnim, BFA_ITNIM_SM_FWRSP); | |
1268 | break; | |
1269 | ||
1270 | case BFI_ITNIM_I2H_DELETE_RSP: | |
1271 | itnim = BFA_ITNIM_FROM_TAG(fcpim, | |
1272 | msg.delete_rsp->bfa_handle); | |
1273 | bfa_assert(msg.delete_rsp->status == BFA_STATUS_OK); | |
1274 | bfa_stats(itnim, delete_comps); | |
1275 | bfa_sm_send_event(itnim, BFA_ITNIM_SM_FWRSP); | |
1276 | break; | |
1277 | ||
1278 | case BFI_ITNIM_I2H_SLER_EVENT: | |
1279 | itnim = BFA_ITNIM_FROM_TAG(fcpim, | |
1280 | msg.sler_event->bfa_handle); | |
1281 | bfa_stats(itnim, sler_events); | |
1282 | bfa_sm_send_event(itnim, BFA_ITNIM_SM_SLER); | |
1283 | break; | |
1284 | ||
1285 | default: | |
1286 | bfa_trc(bfa, m->mhdr.msg_id); | |
1287 | bfa_assert(0); | |
1288 | } | |
1289 | } | |
1290 | ||
5fbe25c7 | 1291 | /* |
da99dcc9 | 1292 | * bfa_itnim_api |
a36c61f9 KG |
1293 | */ |
1294 | ||
1295 | struct bfa_itnim_s * | |
1296 | bfa_itnim_create(struct bfa_s *bfa, struct bfa_rport_s *rport, void *ditn) | |
1297 | { | |
1298 | struct bfa_fcpim_mod_s *fcpim = BFA_FCPIM_MOD(bfa); | |
1299 | struct bfa_itnim_s *itnim; | |
1300 | ||
1301 | itnim = BFA_ITNIM_FROM_TAG(fcpim, rport->rport_tag); | |
1302 | bfa_assert(itnim->rport == rport); | |
1303 | ||
1304 | itnim->ditn = ditn; | |
1305 | ||
1306 | bfa_stats(itnim, creates); | |
1307 | bfa_sm_send_event(itnim, BFA_ITNIM_SM_CREATE); | |
1308 | ||
1309 | return itnim; | |
1310 | } | |
1311 | ||
1312 | void | |
1313 | bfa_itnim_delete(struct bfa_itnim_s *itnim) | |
1314 | { | |
1315 | bfa_stats(itnim, deletes); | |
1316 | bfa_sm_send_event(itnim, BFA_ITNIM_SM_DELETE); | |
1317 | } | |
1318 | ||
1319 | void | |
1320 | bfa_itnim_online(struct bfa_itnim_s *itnim, bfa_boolean_t seq_rec) | |
1321 | { | |
1322 | itnim->seq_rec = seq_rec; | |
1323 | bfa_stats(itnim, onlines); | |
1324 | bfa_sm_send_event(itnim, BFA_ITNIM_SM_ONLINE); | |
1325 | } | |
1326 | ||
1327 | void | |
1328 | bfa_itnim_offline(struct bfa_itnim_s *itnim) | |
1329 | { | |
1330 | bfa_stats(itnim, offlines); | |
1331 | bfa_sm_send_event(itnim, BFA_ITNIM_SM_OFFLINE); | |
1332 | } | |
1333 | ||
5fbe25c7 | 1334 | /* |
a36c61f9 KG |
1335 | * Return true if itnim is considered offline for holding off IO request. |
1336 | * IO is not held if itnim is being deleted. | |
1337 | */ | |
1338 | bfa_boolean_t | |
1339 | bfa_itnim_hold_io(struct bfa_itnim_s *itnim) | |
1340 | { | |
1341 | return itnim->fcpim->path_tov && itnim->iotov_active && | |
1342 | (bfa_sm_cmp_state(itnim, bfa_itnim_sm_fwcreate) || | |
1343 | bfa_sm_cmp_state(itnim, bfa_itnim_sm_sler) || | |
1344 | bfa_sm_cmp_state(itnim, bfa_itnim_sm_cleanup_offline) || | |
1345 | bfa_sm_cmp_state(itnim, bfa_itnim_sm_fwdelete) || | |
1346 | bfa_sm_cmp_state(itnim, bfa_itnim_sm_offline) || | |
1347 | bfa_sm_cmp_state(itnim, bfa_itnim_sm_iocdisable)); | |
1348 | } | |
1349 | ||
a36c61f9 KG |
1350 | void |
1351 | bfa_itnim_clear_stats(struct bfa_itnim_s *itnim) | |
1352 | { | |
1353 | int j; | |
6a18b167 JH |
1354 | memset(&itnim->stats, 0, sizeof(itnim->stats)); |
1355 | memset(&itnim->ioprofile, 0, sizeof(itnim->ioprofile)); | |
a36c61f9 KG |
1356 | for (j = 0; j < BFA_IOBUCKET_MAX; j++) |
1357 | itnim->ioprofile.io_latency.min[j] = ~0; | |
1358 | } | |
1359 | ||
5fbe25c7 | 1360 | /* |
a36c61f9 KG |
1361 | * BFA IO module state machine functions |
1362 | */ | |
1363 | ||
5fbe25c7 | 1364 | /* |
da99dcc9 | 1365 | * IO is not started (unallocated). |
a36c61f9 KG |
1366 | */ |
1367 | static void | |
1368 | bfa_ioim_sm_uninit(struct bfa_ioim_s *ioim, enum bfa_ioim_event event) | |
1369 | { | |
1370 | bfa_trc_fp(ioim->bfa, ioim->iotag); | |
1371 | bfa_trc_fp(ioim->bfa, event); | |
1372 | ||
1373 | switch (event) { | |
1374 | case BFA_IOIM_SM_START: | |
1375 | if (!bfa_itnim_is_online(ioim->itnim)) { | |
1376 | if (!bfa_itnim_hold_io(ioim->itnim)) { | |
1377 | bfa_sm_set_state(ioim, bfa_ioim_sm_hcb); | |
1378 | list_del(&ioim->qe); | |
1379 | list_add_tail(&ioim->qe, | |
1380 | &ioim->fcpim->ioim_comp_q); | |
1381 | bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, | |
1382 | __bfa_cb_ioim_pathtov, ioim); | |
1383 | } else { | |
1384 | list_del(&ioim->qe); | |
1385 | list_add_tail(&ioim->qe, | |
1386 | &ioim->itnim->pending_q); | |
1387 | } | |
1388 | break; | |
1389 | } | |
1390 | ||
1391 | if (ioim->nsges > BFI_SGE_INLINE) { | |
e3e7d3ee | 1392 | if (!bfa_ioim_sgpg_alloc(ioim)) { |
a36c61f9 KG |
1393 | bfa_sm_set_state(ioim, bfa_ioim_sm_sgalloc); |
1394 | return; | |
1395 | } | |
1396 | } | |
1397 | ||
1398 | if (!bfa_ioim_send_ioreq(ioim)) { | |
1399 | bfa_sm_set_state(ioim, bfa_ioim_sm_qfull); | |
1400 | break; | |
1401 | } | |
1402 | ||
1403 | bfa_sm_set_state(ioim, bfa_ioim_sm_active); | |
1404 | break; | |
1405 | ||
1406 | case BFA_IOIM_SM_IOTOV: | |
1407 | bfa_sm_set_state(ioim, bfa_ioim_sm_hcb); | |
1408 | bfa_ioim_move_to_comp_q(ioim); | |
1409 | bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, | |
1410 | __bfa_cb_ioim_pathtov, ioim); | |
1411 | break; | |
1412 | ||
1413 | case BFA_IOIM_SM_ABORT: | |
5fbe25c7 | 1414 | /* |
a36c61f9 KG |
1415 | * IO in pending queue can get abort requests. Complete abort |
1416 | * requests immediately. | |
1417 | */ | |
1418 | bfa_sm_set_state(ioim, bfa_ioim_sm_hcb); | |
1419 | bfa_assert(bfa_q_is_on_q(&ioim->itnim->pending_q, ioim)); | |
1420 | bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, | |
1421 | __bfa_cb_ioim_abort, ioim); | |
1422 | break; | |
1423 | ||
1424 | default: | |
1425 | bfa_sm_fault(ioim->bfa, event); | |
1426 | } | |
1427 | } | |
1428 | ||
5fbe25c7 | 1429 | /* |
da99dcc9 | 1430 | * IO is waiting for SG pages. |
a36c61f9 KG |
1431 | */ |
1432 | static void | |
1433 | bfa_ioim_sm_sgalloc(struct bfa_ioim_s *ioim, enum bfa_ioim_event event) | |
1434 | { | |
1435 | bfa_trc(ioim->bfa, ioim->iotag); | |
1436 | bfa_trc(ioim->bfa, event); | |
1437 | ||
1438 | switch (event) { | |
1439 | case BFA_IOIM_SM_SGALLOCED: | |
1440 | if (!bfa_ioim_send_ioreq(ioim)) { | |
1441 | bfa_sm_set_state(ioim, bfa_ioim_sm_qfull); | |
1442 | break; | |
1443 | } | |
1444 | bfa_sm_set_state(ioim, bfa_ioim_sm_active); | |
1445 | break; | |
1446 | ||
1447 | case BFA_IOIM_SM_CLEANUP: | |
1448 | bfa_sm_set_state(ioim, bfa_ioim_sm_hcb); | |
1449 | bfa_sgpg_wcancel(ioim->bfa, &ioim->iosp->sgpg_wqe); | |
1450 | bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, __bfa_cb_ioim_failed, | |
1451 | ioim); | |
1452 | bfa_ioim_notify_cleanup(ioim); | |
1453 | break; | |
1454 | ||
1455 | case BFA_IOIM_SM_ABORT: | |
1456 | bfa_sm_set_state(ioim, bfa_ioim_sm_hcb); | |
1457 | bfa_sgpg_wcancel(ioim->bfa, &ioim->iosp->sgpg_wqe); | |
1458 | bfa_ioim_move_to_comp_q(ioim); | |
1459 | bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, __bfa_cb_ioim_abort, | |
1460 | ioim); | |
1461 | break; | |
1462 | ||
1463 | case BFA_IOIM_SM_HWFAIL: | |
1464 | bfa_sm_set_state(ioim, bfa_ioim_sm_hcb); | |
1465 | bfa_sgpg_wcancel(ioim->bfa, &ioim->iosp->sgpg_wqe); | |
1466 | bfa_ioim_move_to_comp_q(ioim); | |
1467 | bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, __bfa_cb_ioim_failed, | |
1468 | ioim); | |
1469 | break; | |
1470 | ||
1471 | default: | |
1472 | bfa_sm_fault(ioim->bfa, event); | |
1473 | } | |
1474 | } | |
1475 | ||
5fbe25c7 | 1476 | /* |
da99dcc9 | 1477 | * IO is active. |
a36c61f9 KG |
1478 | */ |
1479 | static void | |
1480 | bfa_ioim_sm_active(struct bfa_ioim_s *ioim, enum bfa_ioim_event event) | |
1481 | { | |
1482 | bfa_trc_fp(ioim->bfa, ioim->iotag); | |
1483 | bfa_trc_fp(ioim->bfa, event); | |
1484 | ||
1485 | switch (event) { | |
1486 | case BFA_IOIM_SM_COMP_GOOD: | |
1487 | bfa_sm_set_state(ioim, bfa_ioim_sm_hcb); | |
1488 | bfa_ioim_move_to_comp_q(ioim); | |
1489 | bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, | |
1490 | __bfa_cb_ioim_good_comp, ioim); | |
1491 | break; | |
1492 | ||
1493 | case BFA_IOIM_SM_COMP: | |
1494 | bfa_sm_set_state(ioim, bfa_ioim_sm_hcb); | |
1495 | bfa_ioim_move_to_comp_q(ioim); | |
1496 | bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, __bfa_cb_ioim_comp, | |
1497 | ioim); | |
1498 | break; | |
1499 | ||
1500 | case BFA_IOIM_SM_DONE: | |
1501 | bfa_sm_set_state(ioim, bfa_ioim_sm_hcb_free); | |
1502 | bfa_ioim_move_to_comp_q(ioim); | |
1503 | bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, __bfa_cb_ioim_comp, | |
1504 | ioim); | |
1505 | break; | |
1506 | ||
1507 | case BFA_IOIM_SM_ABORT: | |
1508 | ioim->iosp->abort_explicit = BFA_TRUE; | |
1509 | ioim->io_cbfn = __bfa_cb_ioim_abort; | |
1510 | ||
1511 | if (bfa_ioim_send_abort(ioim)) | |
1512 | bfa_sm_set_state(ioim, bfa_ioim_sm_abort); | |
1513 | else { | |
1514 | bfa_sm_set_state(ioim, bfa_ioim_sm_abort_qfull); | |
1515 | bfa_stats(ioim->itnim, qwait); | |
1516 | bfa_reqq_wait(ioim->bfa, ioim->reqq, | |
1517 | &ioim->iosp->reqq_wait); | |
1518 | } | |
1519 | break; | |
1520 | ||
1521 | case BFA_IOIM_SM_CLEANUP: | |
1522 | ioim->iosp->abort_explicit = BFA_FALSE; | |
1523 | ioim->io_cbfn = __bfa_cb_ioim_failed; | |
1524 | ||
1525 | if (bfa_ioim_send_abort(ioim)) | |
1526 | bfa_sm_set_state(ioim, bfa_ioim_sm_cleanup); | |
1527 | else { | |
1528 | bfa_sm_set_state(ioim, bfa_ioim_sm_cleanup_qfull); | |
1529 | bfa_stats(ioim->itnim, qwait); | |
1530 | bfa_reqq_wait(ioim->bfa, ioim->reqq, | |
1531 | &ioim->iosp->reqq_wait); | |
1532 | } | |
1533 | break; | |
1534 | ||
1535 | case BFA_IOIM_SM_HWFAIL: | |
1536 | bfa_sm_set_state(ioim, bfa_ioim_sm_hcb); | |
1537 | bfa_ioim_move_to_comp_q(ioim); | |
1538 | bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, __bfa_cb_ioim_failed, | |
1539 | ioim); | |
1540 | break; | |
1541 | ||
1542 | case BFA_IOIM_SM_SQRETRY: | |
1543 | if (bfa_ioim_get_iotag(ioim) != BFA_TRUE) { | |
1544 | /* max retry completed free IO */ | |
1545 | bfa_sm_set_state(ioim, bfa_ioim_sm_hcb_free); | |
1546 | bfa_ioim_move_to_comp_q(ioim); | |
1547 | bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, | |
1548 | __bfa_cb_ioim_failed, ioim); | |
1549 | break; | |
1550 | } | |
1551 | /* waiting for IO tag resource free */ | |
1552 | bfa_sm_set_state(ioim, bfa_ioim_sm_cmnd_retry); | |
1553 | break; | |
1554 | ||
1555 | default: | |
1556 | bfa_sm_fault(ioim->bfa, event); | |
1557 | } | |
1558 | } | |
1559 | ||
5fbe25c7 | 1560 | /* |
da99dcc9 MZ |
1561 | * IO is retried with new tag. |
1562 | */ | |
a36c61f9 KG |
1563 | static void |
1564 | bfa_ioim_sm_cmnd_retry(struct bfa_ioim_s *ioim, enum bfa_ioim_event event) | |
1565 | { | |
1566 | bfa_trc_fp(ioim->bfa, ioim->iotag); | |
1567 | bfa_trc_fp(ioim->bfa, event); | |
1568 | ||
1569 | switch (event) { | |
1570 | case BFA_IOIM_SM_FREE: | |
1571 | /* abts and rrq done. Now retry the IO with new tag */ | |
1572 | if (!bfa_ioim_send_ioreq(ioim)) { | |
1573 | bfa_sm_set_state(ioim, bfa_ioim_sm_qfull); | |
1574 | break; | |
1575 | } | |
1576 | bfa_sm_set_state(ioim, bfa_ioim_sm_active); | |
1577 | break; | |
1578 | ||
1579 | case BFA_IOIM_SM_CLEANUP: | |
1580 | ioim->iosp->abort_explicit = BFA_FALSE; | |
1581 | ioim->io_cbfn = __bfa_cb_ioim_failed; | |
1582 | ||
1583 | if (bfa_ioim_send_abort(ioim)) | |
1584 | bfa_sm_set_state(ioim, bfa_ioim_sm_cleanup); | |
1585 | else { | |
1586 | bfa_sm_set_state(ioim, bfa_ioim_sm_cleanup_qfull); | |
1587 | bfa_stats(ioim->itnim, qwait); | |
1588 | bfa_reqq_wait(ioim->bfa, ioim->reqq, | |
1589 | &ioim->iosp->reqq_wait); | |
1590 | } | |
1591 | break; | |
1592 | ||
1593 | case BFA_IOIM_SM_HWFAIL: | |
1594 | bfa_sm_set_state(ioim, bfa_ioim_sm_hcb); | |
1595 | bfa_ioim_move_to_comp_q(ioim); | |
1596 | bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, | |
1597 | __bfa_cb_ioim_failed, ioim); | |
1598 | break; | |
1599 | ||
1600 | case BFA_IOIM_SM_ABORT: | |
5fbe25c7 | 1601 | /* in this state IO abort is done. |
a36c61f9 KG |
1602 | * Waiting for IO tag resource free. |
1603 | */ | |
1604 | bfa_sm_set_state(ioim, bfa_ioim_sm_hcb_free); | |
1605 | bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, __bfa_cb_ioim_abort, | |
1606 | ioim); | |
1607 | break; | |
1608 | ||
1609 | default: | |
1610 | bfa_sm_fault(ioim->bfa, event); | |
1611 | } | |
1612 | } | |
1613 | ||
5fbe25c7 | 1614 | /* |
da99dcc9 | 1615 | * IO is being aborted, waiting for completion from firmware. |
a36c61f9 KG |
1616 | */ |
1617 | static void | |
1618 | bfa_ioim_sm_abort(struct bfa_ioim_s *ioim, enum bfa_ioim_event event) | |
1619 | { | |
1620 | bfa_trc(ioim->bfa, ioim->iotag); | |
1621 | bfa_trc(ioim->bfa, event); | |
1622 | ||
1623 | switch (event) { | |
1624 | case BFA_IOIM_SM_COMP_GOOD: | |
1625 | case BFA_IOIM_SM_COMP: | |
1626 | case BFA_IOIM_SM_DONE: | |
1627 | case BFA_IOIM_SM_FREE: | |
1628 | break; | |
1629 | ||
1630 | case BFA_IOIM_SM_ABORT_DONE: | |
1631 | bfa_sm_set_state(ioim, bfa_ioim_sm_hcb_free); | |
1632 | bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, __bfa_cb_ioim_abort, | |
1633 | ioim); | |
1634 | break; | |
1635 | ||
1636 | case BFA_IOIM_SM_ABORT_COMP: | |
1637 | bfa_sm_set_state(ioim, bfa_ioim_sm_hcb); | |
1638 | bfa_ioim_move_to_comp_q(ioim); | |
1639 | bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, __bfa_cb_ioim_abort, | |
1640 | ioim); | |
1641 | break; | |
1642 | ||
1643 | case BFA_IOIM_SM_COMP_UTAG: | |
1644 | bfa_sm_set_state(ioim, bfa_ioim_sm_hcb); | |
1645 | bfa_ioim_move_to_comp_q(ioim); | |
1646 | bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, __bfa_cb_ioim_abort, | |
1647 | ioim); | |
1648 | break; | |
1649 | ||
1650 | case BFA_IOIM_SM_CLEANUP: | |
1651 | bfa_assert(ioim->iosp->abort_explicit == BFA_TRUE); | |
1652 | ioim->iosp->abort_explicit = BFA_FALSE; | |
1653 | ||
1654 | if (bfa_ioim_send_abort(ioim)) | |
1655 | bfa_sm_set_state(ioim, bfa_ioim_sm_cleanup); | |
1656 | else { | |
1657 | bfa_sm_set_state(ioim, bfa_ioim_sm_cleanup_qfull); | |
1658 | bfa_stats(ioim->itnim, qwait); | |
1659 | bfa_reqq_wait(ioim->bfa, ioim->reqq, | |
1660 | &ioim->iosp->reqq_wait); | |
1661 | } | |
1662 | break; | |
1663 | ||
1664 | case BFA_IOIM_SM_HWFAIL: | |
1665 | bfa_sm_set_state(ioim, bfa_ioim_sm_hcb); | |
1666 | bfa_ioim_move_to_comp_q(ioim); | |
1667 | bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, __bfa_cb_ioim_failed, | |
1668 | ioim); | |
1669 | break; | |
1670 | ||
1671 | default: | |
1672 | bfa_sm_fault(ioim->bfa, event); | |
1673 | } | |
1674 | } | |
1675 | ||
5fbe25c7 | 1676 | /* |
a36c61f9 KG |
1677 | * IO is being cleaned up (implicit abort), waiting for completion from |
1678 | * firmware. | |
1679 | */ | |
1680 | static void | |
1681 | bfa_ioim_sm_cleanup(struct bfa_ioim_s *ioim, enum bfa_ioim_event event) | |
1682 | { | |
1683 | bfa_trc(ioim->bfa, ioim->iotag); | |
1684 | bfa_trc(ioim->bfa, event); | |
1685 | ||
1686 | switch (event) { | |
1687 | case BFA_IOIM_SM_COMP_GOOD: | |
1688 | case BFA_IOIM_SM_COMP: | |
1689 | case BFA_IOIM_SM_DONE: | |
1690 | case BFA_IOIM_SM_FREE: | |
1691 | break; | |
1692 | ||
1693 | case BFA_IOIM_SM_ABORT: | |
5fbe25c7 | 1694 | /* |
a36c61f9 KG |
1695 | * IO is already being aborted implicitly |
1696 | */ | |
1697 | ioim->io_cbfn = __bfa_cb_ioim_abort; | |
1698 | break; | |
1699 | ||
1700 | case BFA_IOIM_SM_ABORT_DONE: | |
1701 | bfa_sm_set_state(ioim, bfa_ioim_sm_hcb_free); | |
1702 | bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, ioim->io_cbfn, ioim); | |
1703 | bfa_ioim_notify_cleanup(ioim); | |
1704 | break; | |
1705 | ||
1706 | case BFA_IOIM_SM_ABORT_COMP: | |
1707 | bfa_sm_set_state(ioim, bfa_ioim_sm_hcb); | |
1708 | bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, ioim->io_cbfn, ioim); | |
1709 | bfa_ioim_notify_cleanup(ioim); | |
1710 | break; | |
1711 | ||
1712 | case BFA_IOIM_SM_COMP_UTAG: | |
1713 | bfa_sm_set_state(ioim, bfa_ioim_sm_hcb); | |
1714 | bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, ioim->io_cbfn, ioim); | |
1715 | bfa_ioim_notify_cleanup(ioim); | |
1716 | break; | |
1717 | ||
1718 | case BFA_IOIM_SM_HWFAIL: | |
1719 | bfa_sm_set_state(ioim, bfa_ioim_sm_hcb); | |
1720 | bfa_ioim_move_to_comp_q(ioim); | |
1721 | bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, __bfa_cb_ioim_failed, | |
1722 | ioim); | |
1723 | break; | |
1724 | ||
1725 | case BFA_IOIM_SM_CLEANUP: | |
5fbe25c7 | 1726 | /* |
a36c61f9 KG |
1727 | * IO can be in cleanup state already due to TM command. |
1728 | * 2nd cleanup request comes from ITN offline event. | |
1729 | */ | |
1730 | break; | |
1731 | ||
1732 | default: | |
1733 | bfa_sm_fault(ioim->bfa, event); | |
1734 | } | |
1735 | } | |
1736 | ||
5fbe25c7 | 1737 | /* |
da99dcc9 | 1738 | * IO is waiting for room in request CQ |
a36c61f9 KG |
1739 | */ |
1740 | static void | |
1741 | bfa_ioim_sm_qfull(struct bfa_ioim_s *ioim, enum bfa_ioim_event event) | |
1742 | { | |
1743 | bfa_trc(ioim->bfa, ioim->iotag); | |
1744 | bfa_trc(ioim->bfa, event); | |
1745 | ||
1746 | switch (event) { | |
1747 | case BFA_IOIM_SM_QRESUME: | |
1748 | bfa_sm_set_state(ioim, bfa_ioim_sm_active); | |
1749 | bfa_ioim_send_ioreq(ioim); | |
1750 | break; | |
1751 | ||
1752 | case BFA_IOIM_SM_ABORT: | |
1753 | bfa_sm_set_state(ioim, bfa_ioim_sm_hcb); | |
1754 | bfa_reqq_wcancel(&ioim->iosp->reqq_wait); | |
1755 | bfa_ioim_move_to_comp_q(ioim); | |
1756 | bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, __bfa_cb_ioim_abort, | |
1757 | ioim); | |
1758 | break; | |
1759 | ||
1760 | case BFA_IOIM_SM_CLEANUP: | |
1761 | bfa_sm_set_state(ioim, bfa_ioim_sm_hcb); | |
1762 | bfa_reqq_wcancel(&ioim->iosp->reqq_wait); | |
1763 | bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, __bfa_cb_ioim_failed, | |
1764 | ioim); | |
1765 | bfa_ioim_notify_cleanup(ioim); | |
1766 | break; | |
1767 | ||
1768 | case BFA_IOIM_SM_HWFAIL: | |
1769 | bfa_sm_set_state(ioim, bfa_ioim_sm_hcb); | |
1770 | bfa_reqq_wcancel(&ioim->iosp->reqq_wait); | |
1771 | bfa_ioim_move_to_comp_q(ioim); | |
1772 | bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, __bfa_cb_ioim_failed, | |
1773 | ioim); | |
1774 | break; | |
1775 | ||
1776 | default: | |
1777 | bfa_sm_fault(ioim->bfa, event); | |
1778 | } | |
1779 | } | |
1780 | ||
5fbe25c7 | 1781 | /* |
da99dcc9 | 1782 | * Active IO is being aborted, waiting for room in request CQ. |
a36c61f9 KG |
1783 | */ |
1784 | static void | |
1785 | bfa_ioim_sm_abort_qfull(struct bfa_ioim_s *ioim, enum bfa_ioim_event event) | |
1786 | { | |
1787 | bfa_trc(ioim->bfa, ioim->iotag); | |
1788 | bfa_trc(ioim->bfa, event); | |
1789 | ||
1790 | switch (event) { | |
1791 | case BFA_IOIM_SM_QRESUME: | |
1792 | bfa_sm_set_state(ioim, bfa_ioim_sm_abort); | |
1793 | bfa_ioim_send_abort(ioim); | |
1794 | break; | |
1795 | ||
1796 | case BFA_IOIM_SM_CLEANUP: | |
1797 | bfa_assert(ioim->iosp->abort_explicit == BFA_TRUE); | |
1798 | ioim->iosp->abort_explicit = BFA_FALSE; | |
1799 | bfa_sm_set_state(ioim, bfa_ioim_sm_cleanup_qfull); | |
1800 | break; | |
1801 | ||
1802 | case BFA_IOIM_SM_COMP_GOOD: | |
1803 | case BFA_IOIM_SM_COMP: | |
1804 | bfa_sm_set_state(ioim, bfa_ioim_sm_hcb); | |
1805 | bfa_reqq_wcancel(&ioim->iosp->reqq_wait); | |
1806 | bfa_ioim_move_to_comp_q(ioim); | |
1807 | bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, __bfa_cb_ioim_abort, | |
1808 | ioim); | |
1809 | break; | |
1810 | ||
1811 | case BFA_IOIM_SM_DONE: | |
1812 | bfa_sm_set_state(ioim, bfa_ioim_sm_hcb_free); | |
1813 | bfa_reqq_wcancel(&ioim->iosp->reqq_wait); | |
1814 | bfa_ioim_move_to_comp_q(ioim); | |
1815 | bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, __bfa_cb_ioim_abort, | |
1816 | ioim); | |
1817 | break; | |
1818 | ||
1819 | case BFA_IOIM_SM_HWFAIL: | |
1820 | bfa_sm_set_state(ioim, bfa_ioim_sm_hcb); | |
1821 | bfa_reqq_wcancel(&ioim->iosp->reqq_wait); | |
1822 | bfa_ioim_move_to_comp_q(ioim); | |
1823 | bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, __bfa_cb_ioim_failed, | |
1824 | ioim); | |
1825 | break; | |
1826 | ||
1827 | default: | |
1828 | bfa_sm_fault(ioim->bfa, event); | |
1829 | } | |
1830 | } | |
1831 | ||
5fbe25c7 | 1832 | /* |
da99dcc9 | 1833 | * Active IO is being cleaned up, waiting for room in request CQ. |
a36c61f9 KG |
1834 | */ |
1835 | static void | |
1836 | bfa_ioim_sm_cleanup_qfull(struct bfa_ioim_s *ioim, enum bfa_ioim_event event) | |
1837 | { | |
1838 | bfa_trc(ioim->bfa, ioim->iotag); | |
1839 | bfa_trc(ioim->bfa, event); | |
1840 | ||
1841 | switch (event) { | |
1842 | case BFA_IOIM_SM_QRESUME: | |
1843 | bfa_sm_set_state(ioim, bfa_ioim_sm_cleanup); | |
1844 | bfa_ioim_send_abort(ioim); | |
1845 | break; | |
1846 | ||
1847 | case BFA_IOIM_SM_ABORT: | |
5fbe25c7 | 1848 | /* |
a36c61f9 KG |
1849 | * IO is alraedy being cleaned up implicitly |
1850 | */ | |
1851 | ioim->io_cbfn = __bfa_cb_ioim_abort; | |
1852 | break; | |
1853 | ||
1854 | case BFA_IOIM_SM_COMP_GOOD: | |
1855 | case BFA_IOIM_SM_COMP: | |
1856 | bfa_sm_set_state(ioim, bfa_ioim_sm_hcb); | |
1857 | bfa_reqq_wcancel(&ioim->iosp->reqq_wait); | |
1858 | bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, ioim->io_cbfn, ioim); | |
1859 | bfa_ioim_notify_cleanup(ioim); | |
1860 | break; | |
1861 | ||
1862 | case BFA_IOIM_SM_DONE: | |
1863 | bfa_sm_set_state(ioim, bfa_ioim_sm_hcb_free); | |
1864 | bfa_reqq_wcancel(&ioim->iosp->reqq_wait); | |
1865 | bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, ioim->io_cbfn, ioim); | |
1866 | bfa_ioim_notify_cleanup(ioim); | |
1867 | break; | |
1868 | ||
1869 | case BFA_IOIM_SM_HWFAIL: | |
1870 | bfa_sm_set_state(ioim, bfa_ioim_sm_hcb); | |
1871 | bfa_reqq_wcancel(&ioim->iosp->reqq_wait); | |
1872 | bfa_ioim_move_to_comp_q(ioim); | |
1873 | bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, __bfa_cb_ioim_failed, | |
1874 | ioim); | |
1875 | break; | |
1876 | ||
1877 | default: | |
1878 | bfa_sm_fault(ioim->bfa, event); | |
1879 | } | |
1880 | } | |
1881 | ||
5fbe25c7 | 1882 | /* |
a36c61f9 KG |
1883 | * IO bfa callback is pending. |
1884 | */ | |
1885 | static void | |
1886 | bfa_ioim_sm_hcb(struct bfa_ioim_s *ioim, enum bfa_ioim_event event) | |
1887 | { | |
1888 | bfa_trc_fp(ioim->bfa, ioim->iotag); | |
1889 | bfa_trc_fp(ioim->bfa, event); | |
1890 | ||
1891 | switch (event) { | |
1892 | case BFA_IOIM_SM_HCB: | |
1893 | bfa_sm_set_state(ioim, bfa_ioim_sm_uninit); | |
1894 | bfa_ioim_free(ioim); | |
1895 | break; | |
1896 | ||
1897 | case BFA_IOIM_SM_CLEANUP: | |
1898 | bfa_ioim_notify_cleanup(ioim); | |
1899 | break; | |
1900 | ||
1901 | case BFA_IOIM_SM_HWFAIL: | |
1902 | break; | |
1903 | ||
1904 | default: | |
1905 | bfa_sm_fault(ioim->bfa, event); | |
1906 | } | |
1907 | } | |
1908 | ||
5fbe25c7 | 1909 | /* |
a36c61f9 KG |
1910 | * IO bfa callback is pending. IO resource cannot be freed. |
1911 | */ | |
1912 | static void | |
1913 | bfa_ioim_sm_hcb_free(struct bfa_ioim_s *ioim, enum bfa_ioim_event event) | |
1914 | { | |
1915 | bfa_trc(ioim->bfa, ioim->iotag); | |
1916 | bfa_trc(ioim->bfa, event); | |
1917 | ||
1918 | switch (event) { | |
1919 | case BFA_IOIM_SM_HCB: | |
1920 | bfa_sm_set_state(ioim, bfa_ioim_sm_resfree); | |
1921 | list_del(&ioim->qe); | |
1922 | list_add_tail(&ioim->qe, &ioim->fcpim->ioim_resfree_q); | |
1923 | break; | |
1924 | ||
1925 | case BFA_IOIM_SM_FREE: | |
1926 | bfa_sm_set_state(ioim, bfa_ioim_sm_hcb); | |
1927 | break; | |
1928 | ||
1929 | case BFA_IOIM_SM_CLEANUP: | |
1930 | bfa_ioim_notify_cleanup(ioim); | |
1931 | break; | |
1932 | ||
1933 | case BFA_IOIM_SM_HWFAIL: | |
1934 | bfa_sm_set_state(ioim, bfa_ioim_sm_hcb); | |
1935 | break; | |
1936 | ||
1937 | default: | |
1938 | bfa_sm_fault(ioim->bfa, event); | |
1939 | } | |
1940 | } | |
1941 | ||
5fbe25c7 | 1942 | /* |
a36c61f9 KG |
1943 | * IO is completed, waiting resource free from firmware. |
1944 | */ | |
1945 | static void | |
1946 | bfa_ioim_sm_resfree(struct bfa_ioim_s *ioim, enum bfa_ioim_event event) | |
1947 | { | |
1948 | bfa_trc(ioim->bfa, ioim->iotag); | |
1949 | bfa_trc(ioim->bfa, event); | |
1950 | ||
1951 | switch (event) { | |
1952 | case BFA_IOIM_SM_FREE: | |
1953 | bfa_sm_set_state(ioim, bfa_ioim_sm_uninit); | |
1954 | bfa_ioim_free(ioim); | |
1955 | break; | |
1956 | ||
1957 | case BFA_IOIM_SM_CLEANUP: | |
1958 | bfa_ioim_notify_cleanup(ioim); | |
1959 | break; | |
1960 | ||
1961 | case BFA_IOIM_SM_HWFAIL: | |
1962 | break; | |
1963 | ||
1964 | default: | |
1965 | bfa_sm_fault(ioim->bfa, event); | |
1966 | } | |
1967 | } | |
1968 | ||
1969 | ||
a36c61f9 KG |
1970 | static void |
1971 | __bfa_cb_ioim_good_comp(void *cbarg, bfa_boolean_t complete) | |
1972 | { | |
1973 | struct bfa_ioim_s *ioim = cbarg; | |
1974 | ||
1975 | if (!complete) { | |
1976 | bfa_sm_send_event(ioim, BFA_IOIM_SM_HCB); | |
1977 | return; | |
1978 | } | |
1979 | ||
1980 | bfa_cb_ioim_good_comp(ioim->bfa->bfad, ioim->dio); | |
1981 | } | |
1982 | ||
1983 | static void | |
1984 | __bfa_cb_ioim_comp(void *cbarg, bfa_boolean_t complete) | |
1985 | { | |
1986 | struct bfa_ioim_s *ioim = cbarg; | |
1987 | struct bfi_ioim_rsp_s *m; | |
1988 | u8 *snsinfo = NULL; | |
1989 | u8 sns_len = 0; | |
1990 | s32 residue = 0; | |
1991 | ||
1992 | if (!complete) { | |
1993 | bfa_sm_send_event(ioim, BFA_IOIM_SM_HCB); | |
1994 | return; | |
1995 | } | |
1996 | ||
1997 | m = (struct bfi_ioim_rsp_s *) &ioim->iosp->comp_rspmsg; | |
1998 | if (m->io_status == BFI_IOIM_STS_OK) { | |
5fbe25c7 | 1999 | /* |
a36c61f9 KG |
2000 | * setup sense information, if present |
2001 | */ | |
2002 | if ((m->scsi_status == SCSI_STATUS_CHECK_CONDITION) && | |
2003 | m->sns_len) { | |
2004 | sns_len = m->sns_len; | |
2005 | snsinfo = ioim->iosp->snsinfo; | |
2006 | } | |
2007 | ||
5fbe25c7 | 2008 | /* |
a36c61f9 KG |
2009 | * setup residue value correctly for normal completions |
2010 | */ | |
2011 | if (m->resid_flags == FCP_RESID_UNDER) { | |
ba816ea8 | 2012 | residue = be32_to_cpu(m->residue); |
a36c61f9 KG |
2013 | bfa_stats(ioim->itnim, iocomp_underrun); |
2014 | } | |
2015 | if (m->resid_flags == FCP_RESID_OVER) { | |
ba816ea8 | 2016 | residue = be32_to_cpu(m->residue); |
a36c61f9 KG |
2017 | residue = -residue; |
2018 | bfa_stats(ioim->itnim, iocomp_overrun); | |
2019 | } | |
2020 | } | |
2021 | ||
2022 | bfa_cb_ioim_done(ioim->bfa->bfad, ioim->dio, m->io_status, | |
2023 | m->scsi_status, sns_len, snsinfo, residue); | |
2024 | } | |
2025 | ||
2026 | static void | |
2027 | __bfa_cb_ioim_failed(void *cbarg, bfa_boolean_t complete) | |
2028 | { | |
2029 | struct bfa_ioim_s *ioim = cbarg; | |
2030 | ||
2031 | if (!complete) { | |
2032 | bfa_sm_send_event(ioim, BFA_IOIM_SM_HCB); | |
2033 | return; | |
2034 | } | |
2035 | ||
2036 | bfa_cb_ioim_done(ioim->bfa->bfad, ioim->dio, BFI_IOIM_STS_ABORTED, | |
2037 | 0, 0, NULL, 0); | |
2038 | } | |
2039 | ||
2040 | static void | |
2041 | __bfa_cb_ioim_pathtov(void *cbarg, bfa_boolean_t complete) | |
2042 | { | |
2043 | struct bfa_ioim_s *ioim = cbarg; | |
2044 | ||
2045 | bfa_stats(ioim->itnim, path_tov_expired); | |
2046 | if (!complete) { | |
2047 | bfa_sm_send_event(ioim, BFA_IOIM_SM_HCB); | |
2048 | return; | |
2049 | } | |
2050 | ||
2051 | bfa_cb_ioim_done(ioim->bfa->bfad, ioim->dio, BFI_IOIM_STS_PATHTOV, | |
2052 | 0, 0, NULL, 0); | |
2053 | } | |
2054 | ||
2055 | static void | |
2056 | __bfa_cb_ioim_abort(void *cbarg, bfa_boolean_t complete) | |
2057 | { | |
2058 | struct bfa_ioim_s *ioim = cbarg; | |
2059 | ||
2060 | if (!complete) { | |
2061 | bfa_sm_send_event(ioim, BFA_IOIM_SM_HCB); | |
2062 | return; | |
2063 | } | |
2064 | ||
2065 | bfa_cb_ioim_abort(ioim->bfa->bfad, ioim->dio); | |
2066 | } | |
2067 | ||
2068 | static void | |
2069 | bfa_ioim_sgpg_alloced(void *cbarg) | |
2070 | { | |
2071 | struct bfa_ioim_s *ioim = cbarg; | |
2072 | ||
2073 | ioim->nsgpgs = BFA_SGPG_NPAGE(ioim->nsges); | |
2074 | list_splice_tail_init(&ioim->iosp->sgpg_wqe.sgpg_q, &ioim->sgpg_q); | |
e3e7d3ee | 2075 | ioim->sgpg = bfa_q_first(&ioim->sgpg_q); |
a36c61f9 KG |
2076 | bfa_sm_send_event(ioim, BFA_IOIM_SM_SGALLOCED); |
2077 | } | |
2078 | ||
5fbe25c7 | 2079 | /* |
a36c61f9 KG |
2080 | * Send I/O request to firmware. |
2081 | */ | |
2082 | static bfa_boolean_t | |
2083 | bfa_ioim_send_ioreq(struct bfa_ioim_s *ioim) | |
2084 | { | |
2085 | struct bfa_itnim_s *itnim = ioim->itnim; | |
2086 | struct bfi_ioim_req_s *m; | |
da99dcc9 | 2087 | static struct fcp_cmnd_s cmnd_z0 = { { { 0 } } }; |
e3e7d3ee | 2088 | struct bfi_sge_s *sge, *sgpge; |
a36c61f9 KG |
2089 | u32 pgdlen = 0; |
2090 | u32 fcp_dl; | |
2091 | u64 addr; | |
2092 | struct scatterlist *sg; | |
e3e7d3ee | 2093 | struct bfa_sgpg_s *sgpg; |
a36c61f9 | 2094 | struct scsi_cmnd *cmnd = (struct scsi_cmnd *) ioim->dio; |
e3e7d3ee | 2095 | u32 i, sge_id, pgcumsz; |
f314878a | 2096 | enum dma_data_direction dmadir; |
a36c61f9 | 2097 | |
5fbe25c7 | 2098 | /* |
a36c61f9 KG |
2099 | * check for room in queue to send request now |
2100 | */ | |
2101 | m = bfa_reqq_next(ioim->bfa, ioim->reqq); | |
2102 | if (!m) { | |
2103 | bfa_stats(ioim->itnim, qwait); | |
2104 | bfa_reqq_wait(ioim->bfa, ioim->reqq, | |
2105 | &ioim->iosp->reqq_wait); | |
2106 | return BFA_FALSE; | |
2107 | } | |
2108 | ||
5fbe25c7 | 2109 | /* |
a36c61f9 KG |
2110 | * build i/o request message next |
2111 | */ | |
ba816ea8 | 2112 | m->io_tag = cpu_to_be16(ioim->iotag); |
a36c61f9 | 2113 | m->rport_hdl = ioim->itnim->rport->fw_handle; |
f314878a | 2114 | m->io_timeout = 0; |
a36c61f9 | 2115 | |
a36c61f9 | 2116 | sge = &m->sges[0]; |
e3e7d3ee MZ |
2117 | sgpg = ioim->sgpg; |
2118 | sge_id = 0; | |
2119 | sgpge = NULL; | |
2120 | pgcumsz = 0; | |
2121 | scsi_for_each_sg(cmnd, sg, ioim->nsges, i) { | |
2122 | if (i == 0) { | |
2123 | /* build inline IO SG element */ | |
f16a1750 | 2124 | addr = bfa_sgaddr_le(sg_dma_address(sg)); |
e3e7d3ee MZ |
2125 | sge->sga = *(union bfi_addr_u *) &addr; |
2126 | pgdlen = sg_dma_len(sg); | |
2127 | sge->sg_len = pgdlen; | |
2128 | sge->flags = (ioim->nsges > BFI_SGE_INLINE) ? | |
a36c61f9 | 2129 | BFI_SGE_DATA_CPL : BFI_SGE_DATA_LAST; |
e3e7d3ee MZ |
2130 | bfa_sge_to_be(sge); |
2131 | sge++; | |
2132 | } else { | |
2133 | if (sge_id == 0) | |
2134 | sgpge = sgpg->sgpg->sges; | |
2135 | ||
f16a1750 | 2136 | addr = bfa_sgaddr_le(sg_dma_address(sg)); |
e3e7d3ee MZ |
2137 | sgpge->sga = *(union bfi_addr_u *) &addr; |
2138 | sgpge->sg_len = sg_dma_len(sg); | |
2139 | pgcumsz += sgpge->sg_len; | |
2140 | ||
2141 | /* set flags */ | |
2142 | if (i < (ioim->nsges - 1) && | |
2143 | sge_id < (BFI_SGPG_DATA_SGES - 1)) | |
2144 | sgpge->flags = BFI_SGE_DATA; | |
2145 | else if (i < (ioim->nsges - 1)) | |
2146 | sgpge->flags = BFI_SGE_DATA_CPL; | |
2147 | else | |
2148 | sgpge->flags = BFI_SGE_DATA_LAST; | |
2149 | ||
2150 | bfa_sge_to_le(sgpge); | |
2151 | ||
2152 | sgpge++; | |
2153 | if (i == (ioim->nsges - 1)) { | |
2154 | sgpge->flags = BFI_SGE_PGDLEN; | |
2155 | sgpge->sga.a32.addr_lo = 0; | |
2156 | sgpge->sga.a32.addr_hi = 0; | |
2157 | sgpge->sg_len = pgcumsz; | |
2158 | bfa_sge_to_le(sgpge); | |
2159 | } else if (++sge_id == BFI_SGPG_DATA_SGES) { | |
2160 | sgpg = (struct bfa_sgpg_s *) bfa_q_next(sgpg); | |
2161 | sgpge->flags = BFI_SGE_LINK; | |
2162 | sgpge->sga = sgpg->sgpg_pa; | |
2163 | sgpge->sg_len = pgcumsz; | |
2164 | bfa_sge_to_le(sgpge); | |
2165 | sge_id = 0; | |
2166 | pgcumsz = 0; | |
2167 | } | |
2168 | } | |
a36c61f9 KG |
2169 | } |
2170 | ||
2171 | if (ioim->nsges > BFI_SGE_INLINE) { | |
2172 | sge->sga = ioim->sgpg->sgpg_pa; | |
2173 | } else { | |
2174 | sge->sga.a32.addr_lo = 0; | |
2175 | sge->sga.a32.addr_hi = 0; | |
2176 | } | |
2177 | sge->sg_len = pgdlen; | |
2178 | sge->flags = BFI_SGE_PGDLEN; | |
2179 | bfa_sge_to_be(sge); | |
2180 | ||
5fbe25c7 | 2181 | /* |
a36c61f9 KG |
2182 | * set up I/O command parameters |
2183 | */ | |
6a18b167 | 2184 | m->cmnd = cmnd_z0; |
f314878a MZ |
2185 | int_to_scsilun(cmnd->device->lun, &m->cmnd.lun); |
2186 | dmadir = cmnd->sc_data_direction; | |
2187 | if (dmadir == DMA_TO_DEVICE) | |
2188 | m->cmnd.iodir = FCP_IODIR_WRITE; | |
2189 | else if (dmadir == DMA_FROM_DEVICE) | |
2190 | m->cmnd.iodir = FCP_IODIR_READ; | |
2191 | else | |
2192 | m->cmnd.iodir = FCP_IODIR_NONE; | |
2193 | ||
2194 | m->cmnd.cdb = *(scsi_cdb_t *) cmnd->cmnd; | |
2195 | fcp_dl = scsi_bufflen(cmnd); | |
ba816ea8 | 2196 | m->cmnd.fcp_dl = cpu_to_be32(fcp_dl); |
a36c61f9 | 2197 | |
5fbe25c7 | 2198 | /* |
a36c61f9 KG |
2199 | * set up I/O message header |
2200 | */ | |
2201 | switch (m->cmnd.iodir) { | |
2202 | case FCP_IODIR_READ: | |
2203 | bfi_h2i_set(m->mh, BFI_MC_IOIM_READ, 0, bfa_lpuid(ioim->bfa)); | |
2204 | bfa_stats(itnim, input_reqs); | |
2205 | ioim->itnim->stats.rd_throughput += fcp_dl; | |
2206 | break; | |
2207 | case FCP_IODIR_WRITE: | |
2208 | bfi_h2i_set(m->mh, BFI_MC_IOIM_WRITE, 0, bfa_lpuid(ioim->bfa)); | |
2209 | bfa_stats(itnim, output_reqs); | |
2210 | ioim->itnim->stats.wr_throughput += fcp_dl; | |
2211 | break; | |
2212 | case FCP_IODIR_RW: | |
2213 | bfa_stats(itnim, input_reqs); | |
2214 | bfa_stats(itnim, output_reqs); | |
2215 | default: | |
2216 | bfi_h2i_set(m->mh, BFI_MC_IOIM_IO, 0, bfa_lpuid(ioim->bfa)); | |
2217 | } | |
2218 | if (itnim->seq_rec || | |
f314878a | 2219 | (scsi_bufflen(cmnd) & (sizeof(u32) - 1))) |
a36c61f9 KG |
2220 | bfi_h2i_set(m->mh, BFI_MC_IOIM_IO, 0, bfa_lpuid(ioim->bfa)); |
2221 | ||
5fbe25c7 | 2222 | /* |
a36c61f9 KG |
2223 | * queue I/O message to firmware |
2224 | */ | |
2225 | bfa_reqq_produce(ioim->bfa, ioim->reqq); | |
2226 | return BFA_TRUE; | |
2227 | } | |
2228 | ||
5fbe25c7 | 2229 | /* |
a36c61f9 KG |
2230 | * Setup any additional SG pages needed.Inline SG element is setup |
2231 | * at queuing time. | |
2232 | */ | |
2233 | static bfa_boolean_t | |
e3e7d3ee | 2234 | bfa_ioim_sgpg_alloc(struct bfa_ioim_s *ioim) |
a36c61f9 KG |
2235 | { |
2236 | u16 nsgpgs; | |
2237 | ||
2238 | bfa_assert(ioim->nsges > BFI_SGE_INLINE); | |
2239 | ||
5fbe25c7 | 2240 | /* |
a36c61f9 KG |
2241 | * allocate SG pages needed |
2242 | */ | |
2243 | nsgpgs = BFA_SGPG_NPAGE(ioim->nsges); | |
2244 | if (!nsgpgs) | |
2245 | return BFA_TRUE; | |
2246 | ||
2247 | if (bfa_sgpg_malloc(ioim->bfa, &ioim->sgpg_q, nsgpgs) | |
2248 | != BFA_STATUS_OK) { | |
2249 | bfa_sgpg_wait(ioim->bfa, &ioim->iosp->sgpg_wqe, nsgpgs); | |
2250 | return BFA_FALSE; | |
2251 | } | |
2252 | ||
2253 | ioim->nsgpgs = nsgpgs; | |
e3e7d3ee | 2254 | ioim->sgpg = bfa_q_first(&ioim->sgpg_q); |
a36c61f9 KG |
2255 | |
2256 | return BFA_TRUE; | |
2257 | } | |
2258 | ||
5fbe25c7 | 2259 | /* |
a36c61f9 KG |
2260 | * Send I/O abort request to firmware. |
2261 | */ | |
2262 | static bfa_boolean_t | |
2263 | bfa_ioim_send_abort(struct bfa_ioim_s *ioim) | |
2264 | { | |
2265 | struct bfi_ioim_abort_req_s *m; | |
2266 | enum bfi_ioim_h2i msgop; | |
2267 | ||
5fbe25c7 | 2268 | /* |
a36c61f9 KG |
2269 | * check for room in queue to send request now |
2270 | */ | |
2271 | m = bfa_reqq_next(ioim->bfa, ioim->reqq); | |
2272 | if (!m) | |
2273 | return BFA_FALSE; | |
2274 | ||
5fbe25c7 | 2275 | /* |
a36c61f9 KG |
2276 | * build i/o request message next |
2277 | */ | |
2278 | if (ioim->iosp->abort_explicit) | |
2279 | msgop = BFI_IOIM_H2I_IOABORT_REQ; | |
2280 | else | |
2281 | msgop = BFI_IOIM_H2I_IOCLEANUP_REQ; | |
2282 | ||
2283 | bfi_h2i_set(m->mh, BFI_MC_IOIM, msgop, bfa_lpuid(ioim->bfa)); | |
ba816ea8 | 2284 | m->io_tag = cpu_to_be16(ioim->iotag); |
a36c61f9 KG |
2285 | m->abort_tag = ++ioim->abort_tag; |
2286 | ||
5fbe25c7 | 2287 | /* |
a36c61f9 KG |
2288 | * queue I/O message to firmware |
2289 | */ | |
2290 | bfa_reqq_produce(ioim->bfa, ioim->reqq); | |
2291 | return BFA_TRUE; | |
2292 | } | |
2293 | ||
5fbe25c7 | 2294 | /* |
a36c61f9 KG |
2295 | * Call to resume any I/O requests waiting for room in request queue. |
2296 | */ | |
2297 | static void | |
2298 | bfa_ioim_qresume(void *cbarg) | |
2299 | { | |
2300 | struct bfa_ioim_s *ioim = cbarg; | |
2301 | ||
2302 | bfa_stats(ioim->itnim, qresumes); | |
2303 | bfa_sm_send_event(ioim, BFA_IOIM_SM_QRESUME); | |
2304 | } | |
2305 | ||
2306 | ||
2307 | static void | |
2308 | bfa_ioim_notify_cleanup(struct bfa_ioim_s *ioim) | |
2309 | { | |
5fbe25c7 | 2310 | /* |
a36c61f9 KG |
2311 | * Move IO from itnim queue to fcpim global queue since itnim will be |
2312 | * freed. | |
2313 | */ | |
2314 | list_del(&ioim->qe); | |
2315 | list_add_tail(&ioim->qe, &ioim->fcpim->ioim_comp_q); | |
2316 | ||
2317 | if (!ioim->iosp->tskim) { | |
2318 | if (ioim->fcpim->delay_comp && ioim->itnim->iotov_active) { | |
2319 | bfa_cb_dequeue(&ioim->hcb_qe); | |
2320 | list_del(&ioim->qe); | |
2321 | list_add_tail(&ioim->qe, &ioim->itnim->delay_comp_q); | |
2322 | } | |
2323 | bfa_itnim_iodone(ioim->itnim); | |
2324 | } else | |
f7f73812 | 2325 | bfa_wc_down(&ioim->iosp->tskim->wc); |
a36c61f9 KG |
2326 | } |
2327 | ||
2328 | static bfa_boolean_t | |
2329 | bfa_ioim_is_abortable(struct bfa_ioim_s *ioim) | |
2330 | { | |
2331 | if ((bfa_sm_cmp_state(ioim, bfa_ioim_sm_uninit) && | |
2332 | (!bfa_q_is_on_q(&ioim->itnim->pending_q, ioim))) || | |
2333 | (bfa_sm_cmp_state(ioim, bfa_ioim_sm_abort)) || | |
2334 | (bfa_sm_cmp_state(ioim, bfa_ioim_sm_abort_qfull)) || | |
2335 | (bfa_sm_cmp_state(ioim, bfa_ioim_sm_hcb)) || | |
2336 | (bfa_sm_cmp_state(ioim, bfa_ioim_sm_hcb_free)) || | |
2337 | (bfa_sm_cmp_state(ioim, bfa_ioim_sm_resfree))) | |
2338 | return BFA_FALSE; | |
2339 | ||
2340 | return BFA_TRUE; | |
2341 | } | |
2342 | ||
a36c61f9 KG |
2343 | void |
2344 | bfa_ioim_delayed_comp(struct bfa_ioim_s *ioim, bfa_boolean_t iotov) | |
2345 | { | |
5fbe25c7 | 2346 | /* |
a36c61f9 KG |
2347 | * If path tov timer expired, failback with PATHTOV status - these |
2348 | * IO requests are not normally retried by IO stack. | |
2349 | * | |
2350 | * Otherwise device cameback online and fail it with normal failed | |
2351 | * status so that IO stack retries these failed IO requests. | |
2352 | */ | |
2353 | if (iotov) | |
2354 | ioim->io_cbfn = __bfa_cb_ioim_pathtov; | |
2355 | else { | |
2356 | ioim->io_cbfn = __bfa_cb_ioim_failed; | |
2357 | bfa_stats(ioim->itnim, iocom_nexus_abort); | |
2358 | } | |
2359 | bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, ioim->io_cbfn, ioim); | |
2360 | ||
5fbe25c7 | 2361 | /* |
a36c61f9 KG |
2362 | * Move IO to fcpim global queue since itnim will be |
2363 | * freed. | |
2364 | */ | |
2365 | list_del(&ioim->qe); | |
2366 | list_add_tail(&ioim->qe, &ioim->fcpim->ioim_comp_q); | |
2367 | } | |
2368 | ||
2369 | ||
5fbe25c7 | 2370 | /* |
a36c61f9 KG |
2371 | * Memory allocation and initialization. |
2372 | */ | |
2373 | void | |
2374 | bfa_ioim_attach(struct bfa_fcpim_mod_s *fcpim, struct bfa_meminfo_s *minfo) | |
2375 | { | |
2376 | struct bfa_ioim_s *ioim; | |
2377 | struct bfa_ioim_sp_s *iosp; | |
2378 | u16 i; | |
2379 | u8 *snsinfo; | |
2380 | u32 snsbufsz; | |
2381 | ||
5fbe25c7 | 2382 | /* |
a36c61f9 KG |
2383 | * claim memory first |
2384 | */ | |
2385 | ioim = (struct bfa_ioim_s *) bfa_meminfo_kva(minfo); | |
2386 | fcpim->ioim_arr = ioim; | |
2387 | bfa_meminfo_kva(minfo) = (u8 *) (ioim + fcpim->num_ioim_reqs); | |
2388 | ||
2389 | iosp = (struct bfa_ioim_sp_s *) bfa_meminfo_kva(minfo); | |
2390 | fcpim->ioim_sp_arr = iosp; | |
2391 | bfa_meminfo_kva(minfo) = (u8 *) (iosp + fcpim->num_ioim_reqs); | |
2392 | ||
5fbe25c7 | 2393 | /* |
a36c61f9 KG |
2394 | * Claim DMA memory for per IO sense data. |
2395 | */ | |
2396 | snsbufsz = fcpim->num_ioim_reqs * BFI_IOIM_SNSLEN; | |
2397 | fcpim->snsbase.pa = bfa_meminfo_dma_phys(minfo); | |
2398 | bfa_meminfo_dma_phys(minfo) += snsbufsz; | |
2399 | ||
2400 | fcpim->snsbase.kva = bfa_meminfo_dma_virt(minfo); | |
2401 | bfa_meminfo_dma_virt(minfo) += snsbufsz; | |
2402 | snsinfo = fcpim->snsbase.kva; | |
2403 | bfa_iocfc_set_snsbase(fcpim->bfa, fcpim->snsbase.pa); | |
2404 | ||
5fbe25c7 | 2405 | /* |
a36c61f9 KG |
2406 | * Initialize ioim free queues |
2407 | */ | |
2408 | INIT_LIST_HEAD(&fcpim->ioim_free_q); | |
2409 | INIT_LIST_HEAD(&fcpim->ioim_resfree_q); | |
2410 | INIT_LIST_HEAD(&fcpim->ioim_comp_q); | |
2411 | ||
2412 | for (i = 0; i < fcpim->num_ioim_reqs; | |
2413 | i++, ioim++, iosp++, snsinfo += BFI_IOIM_SNSLEN) { | |
2414 | /* | |
2415 | * initialize IOIM | |
2416 | */ | |
6a18b167 | 2417 | memset(ioim, 0, sizeof(struct bfa_ioim_s)); |
a36c61f9 KG |
2418 | ioim->iotag = i; |
2419 | ioim->bfa = fcpim->bfa; | |
2420 | ioim->fcpim = fcpim; | |
2421 | ioim->iosp = iosp; | |
2422 | iosp->snsinfo = snsinfo; | |
2423 | INIT_LIST_HEAD(&ioim->sgpg_q); | |
2424 | bfa_reqq_winit(&ioim->iosp->reqq_wait, | |
2425 | bfa_ioim_qresume, ioim); | |
2426 | bfa_sgpg_winit(&ioim->iosp->sgpg_wqe, | |
2427 | bfa_ioim_sgpg_alloced, ioim); | |
2428 | bfa_sm_set_state(ioim, bfa_ioim_sm_uninit); | |
2429 | ||
2430 | list_add_tail(&ioim->qe, &fcpim->ioim_free_q); | |
2431 | } | |
2432 | } | |
2433 | ||
a36c61f9 KG |
2434 | void |
2435 | bfa_ioim_isr(struct bfa_s *bfa, struct bfi_msg_s *m) | |
2436 | { | |
2437 | struct bfa_fcpim_mod_s *fcpim = BFA_FCPIM_MOD(bfa); | |
2438 | struct bfi_ioim_rsp_s *rsp = (struct bfi_ioim_rsp_s *) m; | |
2439 | struct bfa_ioim_s *ioim; | |
2440 | u16 iotag; | |
2441 | enum bfa_ioim_event evt = BFA_IOIM_SM_COMP; | |
2442 | ||
ba816ea8 | 2443 | iotag = be16_to_cpu(rsp->io_tag); |
a36c61f9 KG |
2444 | |
2445 | ioim = BFA_IOIM_FROM_TAG(fcpim, iotag); | |
2446 | bfa_assert(ioim->iotag == iotag); | |
2447 | ||
2448 | bfa_trc(ioim->bfa, ioim->iotag); | |
2449 | bfa_trc(ioim->bfa, rsp->io_status); | |
2450 | bfa_trc(ioim->bfa, rsp->reuse_io_tag); | |
2451 | ||
2452 | if (bfa_sm_cmp_state(ioim, bfa_ioim_sm_active)) | |
6a18b167 | 2453 | ioim->iosp->comp_rspmsg = *m; |
a36c61f9 KG |
2454 | |
2455 | switch (rsp->io_status) { | |
2456 | case BFI_IOIM_STS_OK: | |
2457 | bfa_stats(ioim->itnim, iocomp_ok); | |
2458 | if (rsp->reuse_io_tag == 0) | |
2459 | evt = BFA_IOIM_SM_DONE; | |
2460 | else | |
2461 | evt = BFA_IOIM_SM_COMP; | |
2462 | break; | |
2463 | ||
2464 | case BFI_IOIM_STS_TIMEDOUT: | |
2465 | bfa_stats(ioim->itnim, iocomp_timedout); | |
2466 | case BFI_IOIM_STS_ABORTED: | |
2467 | rsp->io_status = BFI_IOIM_STS_ABORTED; | |
2468 | bfa_stats(ioim->itnim, iocomp_aborted); | |
2469 | if (rsp->reuse_io_tag == 0) | |
2470 | evt = BFA_IOIM_SM_DONE; | |
2471 | else | |
2472 | evt = BFA_IOIM_SM_COMP; | |
2473 | break; | |
2474 | ||
2475 | case BFI_IOIM_STS_PROTO_ERR: | |
2476 | bfa_stats(ioim->itnim, iocom_proto_err); | |
2477 | bfa_assert(rsp->reuse_io_tag); | |
2478 | evt = BFA_IOIM_SM_COMP; | |
2479 | break; | |
2480 | ||
2481 | case BFI_IOIM_STS_SQER_NEEDED: | |
2482 | bfa_stats(ioim->itnim, iocom_sqer_needed); | |
2483 | bfa_assert(rsp->reuse_io_tag == 0); | |
2484 | evt = BFA_IOIM_SM_SQRETRY; | |
2485 | break; | |
2486 | ||
2487 | case BFI_IOIM_STS_RES_FREE: | |
2488 | bfa_stats(ioim->itnim, iocom_res_free); | |
2489 | evt = BFA_IOIM_SM_FREE; | |
2490 | break; | |
2491 | ||
2492 | case BFI_IOIM_STS_HOST_ABORTED: | |
2493 | bfa_stats(ioim->itnim, iocom_hostabrts); | |
2494 | if (rsp->abort_tag != ioim->abort_tag) { | |
2495 | bfa_trc(ioim->bfa, rsp->abort_tag); | |
2496 | bfa_trc(ioim->bfa, ioim->abort_tag); | |
2497 | return; | |
2498 | } | |
2499 | ||
2500 | if (rsp->reuse_io_tag) | |
2501 | evt = BFA_IOIM_SM_ABORT_COMP; | |
2502 | else | |
2503 | evt = BFA_IOIM_SM_ABORT_DONE; | |
2504 | break; | |
2505 | ||
2506 | case BFI_IOIM_STS_UTAG: | |
2507 | bfa_stats(ioim->itnim, iocom_utags); | |
2508 | evt = BFA_IOIM_SM_COMP_UTAG; | |
2509 | break; | |
2510 | ||
2511 | default: | |
2512 | bfa_assert(0); | |
2513 | } | |
2514 | ||
2515 | bfa_sm_send_event(ioim, evt); | |
2516 | } | |
2517 | ||
2518 | void | |
2519 | bfa_ioim_good_comp_isr(struct bfa_s *bfa, struct bfi_msg_s *m) | |
2520 | { | |
2521 | struct bfa_fcpim_mod_s *fcpim = BFA_FCPIM_MOD(bfa); | |
2522 | struct bfi_ioim_rsp_s *rsp = (struct bfi_ioim_rsp_s *) m; | |
2523 | struct bfa_ioim_s *ioim; | |
2524 | u16 iotag; | |
2525 | ||
ba816ea8 | 2526 | iotag = be16_to_cpu(rsp->io_tag); |
a36c61f9 KG |
2527 | |
2528 | ioim = BFA_IOIM_FROM_TAG(fcpim, iotag); | |
2529 | bfa_assert(ioim->iotag == iotag); | |
2530 | ||
2531 | bfa_trc_fp(ioim->bfa, ioim->iotag); | |
2532 | bfa_ioim_cb_profile_comp(fcpim, ioim); | |
2533 | ||
2534 | bfa_sm_send_event(ioim, BFA_IOIM_SM_COMP_GOOD); | |
2535 | } | |
2536 | ||
5fbe25c7 | 2537 | /* |
a36c61f9 KG |
2538 | * Called by itnim to clean up IO while going offline. |
2539 | */ | |
2540 | void | |
2541 | bfa_ioim_cleanup(struct bfa_ioim_s *ioim) | |
2542 | { | |
2543 | bfa_trc(ioim->bfa, ioim->iotag); | |
2544 | bfa_stats(ioim->itnim, io_cleanups); | |
2545 | ||
2546 | ioim->iosp->tskim = NULL; | |
2547 | bfa_sm_send_event(ioim, BFA_IOIM_SM_CLEANUP); | |
2548 | } | |
2549 | ||
2550 | void | |
2551 | bfa_ioim_cleanup_tm(struct bfa_ioim_s *ioim, struct bfa_tskim_s *tskim) | |
2552 | { | |
2553 | bfa_trc(ioim->bfa, ioim->iotag); | |
2554 | bfa_stats(ioim->itnim, io_tmaborts); | |
2555 | ||
2556 | ioim->iosp->tskim = tskim; | |
2557 | bfa_sm_send_event(ioim, BFA_IOIM_SM_CLEANUP); | |
2558 | } | |
2559 | ||
5fbe25c7 | 2560 | /* |
a36c61f9 KG |
2561 | * IOC failure handling. |
2562 | */ | |
2563 | void | |
2564 | bfa_ioim_iocdisable(struct bfa_ioim_s *ioim) | |
2565 | { | |
2566 | bfa_trc(ioim->bfa, ioim->iotag); | |
2567 | bfa_stats(ioim->itnim, io_iocdowns); | |
2568 | bfa_sm_send_event(ioim, BFA_IOIM_SM_HWFAIL); | |
2569 | } | |
2570 | ||
5fbe25c7 | 2571 | /* |
a36c61f9 KG |
2572 | * IO offline TOV popped. Fail the pending IO. |
2573 | */ | |
2574 | void | |
2575 | bfa_ioim_tov(struct bfa_ioim_s *ioim) | |
2576 | { | |
2577 | bfa_trc(ioim->bfa, ioim->iotag); | |
2578 | bfa_sm_send_event(ioim, BFA_IOIM_SM_IOTOV); | |
2579 | } | |
2580 | ||
2581 | ||
5fbe25c7 | 2582 | /* |
a36c61f9 KG |
2583 | * Allocate IOIM resource for initiator mode I/O request. |
2584 | */ | |
2585 | struct bfa_ioim_s * | |
2586 | bfa_ioim_alloc(struct bfa_s *bfa, struct bfad_ioim_s *dio, | |
2587 | struct bfa_itnim_s *itnim, u16 nsges) | |
2588 | { | |
2589 | struct bfa_fcpim_mod_s *fcpim = BFA_FCPIM_MOD(bfa); | |
2590 | struct bfa_ioim_s *ioim; | |
2591 | ||
5fbe25c7 | 2592 | /* |
a36c61f9 KG |
2593 | * alocate IOIM resource |
2594 | */ | |
2595 | bfa_q_deq(&fcpim->ioim_free_q, &ioim); | |
2596 | if (!ioim) { | |
2597 | bfa_stats(itnim, no_iotags); | |
2598 | return NULL; | |
2599 | } | |
2600 | ||
2601 | ioim->dio = dio; | |
2602 | ioim->itnim = itnim; | |
2603 | ioim->nsges = nsges; | |
2604 | ioim->nsgpgs = 0; | |
2605 | ||
2606 | bfa_stats(itnim, total_ios); | |
2607 | fcpim->ios_active++; | |
2608 | ||
2609 | list_add_tail(&ioim->qe, &itnim->io_q); | |
2610 | bfa_trc_fp(ioim->bfa, ioim->iotag); | |
2611 | ||
2612 | return ioim; | |
2613 | } | |
2614 | ||
2615 | void | |
2616 | bfa_ioim_free(struct bfa_ioim_s *ioim) | |
2617 | { | |
2618 | struct bfa_fcpim_mod_s *fcpim = ioim->fcpim; | |
2619 | ||
2620 | bfa_trc_fp(ioim->bfa, ioim->iotag); | |
2621 | bfa_assert_fp(bfa_sm_cmp_state(ioim, bfa_ioim_sm_uninit)); | |
2622 | ||
2623 | bfa_assert_fp(list_empty(&ioim->sgpg_q) || | |
2624 | (ioim->nsges > BFI_SGE_INLINE)); | |
2625 | ||
2626 | if (ioim->nsgpgs > 0) | |
2627 | bfa_sgpg_mfree(ioim->bfa, &ioim->sgpg_q, ioim->nsgpgs); | |
2628 | ||
2629 | bfa_stats(ioim->itnim, io_comps); | |
2630 | fcpim->ios_active--; | |
2631 | ||
2632 | list_del(&ioim->qe); | |
2633 | list_add_tail(&ioim->qe, &fcpim->ioim_free_q); | |
2634 | } | |
2635 | ||
2636 | void | |
2637 | bfa_ioim_start(struct bfa_ioim_s *ioim) | |
2638 | { | |
2639 | bfa_trc_fp(ioim->bfa, ioim->iotag); | |
2640 | ||
2641 | bfa_ioim_cb_profile_start(ioim->fcpim, ioim); | |
2642 | ||
5fbe25c7 | 2643 | /* |
a36c61f9 KG |
2644 | * Obtain the queue over which this request has to be issued |
2645 | */ | |
2646 | ioim->reqq = bfa_fcpim_ioredirect_enabled(ioim->bfa) ? | |
f314878a | 2647 | BFA_FALSE : bfa_itnim_get_reqq(ioim); |
a36c61f9 KG |
2648 | |
2649 | bfa_sm_send_event(ioim, BFA_IOIM_SM_START); | |
2650 | } | |
2651 | ||
5fbe25c7 | 2652 | /* |
a36c61f9 KG |
2653 | * Driver I/O abort request. |
2654 | */ | |
2655 | bfa_status_t | |
2656 | bfa_ioim_abort(struct bfa_ioim_s *ioim) | |
2657 | { | |
2658 | ||
2659 | bfa_trc(ioim->bfa, ioim->iotag); | |
2660 | ||
2661 | if (!bfa_ioim_is_abortable(ioim)) | |
2662 | return BFA_STATUS_FAILED; | |
2663 | ||
2664 | bfa_stats(ioim->itnim, io_aborts); | |
2665 | bfa_sm_send_event(ioim, BFA_IOIM_SM_ABORT); | |
2666 | ||
2667 | return BFA_STATUS_OK; | |
2668 | } | |
2669 | ||
5fbe25c7 | 2670 | /* |
a36c61f9 KG |
2671 | * BFA TSKIM state machine functions |
2672 | */ | |
2673 | ||
5fbe25c7 | 2674 | /* |
da99dcc9 | 2675 | * Task management command beginning state. |
a36c61f9 KG |
2676 | */ |
2677 | static void | |
2678 | bfa_tskim_sm_uninit(struct bfa_tskim_s *tskim, enum bfa_tskim_event event) | |
2679 | { | |
2680 | bfa_trc(tskim->bfa, event); | |
2681 | ||
2682 | switch (event) { | |
2683 | case BFA_TSKIM_SM_START: | |
2684 | bfa_sm_set_state(tskim, bfa_tskim_sm_active); | |
2685 | bfa_tskim_gather_ios(tskim); | |
2686 | ||
5fbe25c7 | 2687 | /* |
a36c61f9 KG |
2688 | * If device is offline, do not send TM on wire. Just cleanup |
2689 | * any pending IO requests and complete TM request. | |
2690 | */ | |
2691 | if (!bfa_itnim_is_online(tskim->itnim)) { | |
2692 | bfa_sm_set_state(tskim, bfa_tskim_sm_iocleanup); | |
2693 | tskim->tsk_status = BFI_TSKIM_STS_OK; | |
2694 | bfa_tskim_cleanup_ios(tskim); | |
2695 | return; | |
2696 | } | |
2697 | ||
2698 | if (!bfa_tskim_send(tskim)) { | |
2699 | bfa_sm_set_state(tskim, bfa_tskim_sm_qfull); | |
2700 | bfa_stats(tskim->itnim, tm_qwait); | |
2701 | bfa_reqq_wait(tskim->bfa, tskim->itnim->reqq, | |
2702 | &tskim->reqq_wait); | |
2703 | } | |
2704 | break; | |
2705 | ||
2706 | default: | |
2707 | bfa_sm_fault(tskim->bfa, event); | |
2708 | } | |
2709 | } | |
2710 | ||
5fbe25c7 | 2711 | /* |
da99dcc9 MZ |
2712 | * TM command is active, awaiting completion from firmware to |
2713 | * cleanup IO requests in TM scope. | |
a36c61f9 KG |
2714 | */ |
2715 | static void | |
2716 | bfa_tskim_sm_active(struct bfa_tskim_s *tskim, enum bfa_tskim_event event) | |
2717 | { | |
2718 | bfa_trc(tskim->bfa, event); | |
2719 | ||
2720 | switch (event) { | |
2721 | case BFA_TSKIM_SM_DONE: | |
2722 | bfa_sm_set_state(tskim, bfa_tskim_sm_iocleanup); | |
2723 | bfa_tskim_cleanup_ios(tskim); | |
2724 | break; | |
2725 | ||
2726 | case BFA_TSKIM_SM_CLEANUP: | |
2727 | bfa_sm_set_state(tskim, bfa_tskim_sm_cleanup); | |
2728 | if (!bfa_tskim_send_abort(tskim)) { | |
2729 | bfa_sm_set_state(tskim, bfa_tskim_sm_cleanup_qfull); | |
2730 | bfa_stats(tskim->itnim, tm_qwait); | |
2731 | bfa_reqq_wait(tskim->bfa, tskim->itnim->reqq, | |
2732 | &tskim->reqq_wait); | |
2733 | } | |
2734 | break; | |
2735 | ||
2736 | case BFA_TSKIM_SM_HWFAIL: | |
2737 | bfa_sm_set_state(tskim, bfa_tskim_sm_hcb); | |
2738 | bfa_tskim_iocdisable_ios(tskim); | |
2739 | bfa_tskim_qcomp(tskim, __bfa_cb_tskim_failed); | |
2740 | break; | |
2741 | ||
2742 | default: | |
2743 | bfa_sm_fault(tskim->bfa, event); | |
2744 | } | |
2745 | } | |
2746 | ||
5fbe25c7 | 2747 | /* |
da99dcc9 MZ |
2748 | * An active TM is being cleaned up since ITN is offline. Awaiting cleanup |
2749 | * completion event from firmware. | |
a36c61f9 KG |
2750 | */ |
2751 | static void | |
2752 | bfa_tskim_sm_cleanup(struct bfa_tskim_s *tskim, enum bfa_tskim_event event) | |
2753 | { | |
2754 | bfa_trc(tskim->bfa, event); | |
2755 | ||
2756 | switch (event) { | |
2757 | case BFA_TSKIM_SM_DONE: | |
5fbe25c7 | 2758 | /* |
a36c61f9 KG |
2759 | * Ignore and wait for ABORT completion from firmware. |
2760 | */ | |
2761 | break; | |
2762 | ||
2763 | case BFA_TSKIM_SM_CLEANUP_DONE: | |
2764 | bfa_sm_set_state(tskim, bfa_tskim_sm_iocleanup); | |
2765 | bfa_tskim_cleanup_ios(tskim); | |
2766 | break; | |
2767 | ||
2768 | case BFA_TSKIM_SM_HWFAIL: | |
2769 | bfa_sm_set_state(tskim, bfa_tskim_sm_hcb); | |
2770 | bfa_tskim_iocdisable_ios(tskim); | |
2771 | bfa_tskim_qcomp(tskim, __bfa_cb_tskim_failed); | |
2772 | break; | |
2773 | ||
2774 | default: | |
2775 | bfa_sm_fault(tskim->bfa, event); | |
2776 | } | |
2777 | } | |
2778 | ||
2779 | static void | |
2780 | bfa_tskim_sm_iocleanup(struct bfa_tskim_s *tskim, enum bfa_tskim_event event) | |
2781 | { | |
2782 | bfa_trc(tskim->bfa, event); | |
2783 | ||
2784 | switch (event) { | |
2785 | case BFA_TSKIM_SM_IOS_DONE: | |
2786 | bfa_sm_set_state(tskim, bfa_tskim_sm_hcb); | |
2787 | bfa_tskim_qcomp(tskim, __bfa_cb_tskim_done); | |
2788 | break; | |
2789 | ||
2790 | case BFA_TSKIM_SM_CLEANUP: | |
5fbe25c7 | 2791 | /* |
a36c61f9 KG |
2792 | * Ignore, TM command completed on wire. |
2793 | * Notify TM conmpletion on IO cleanup completion. | |
2794 | */ | |
2795 | break; | |
2796 | ||
2797 | case BFA_TSKIM_SM_HWFAIL: | |
2798 | bfa_sm_set_state(tskim, bfa_tskim_sm_hcb); | |
2799 | bfa_tskim_iocdisable_ios(tskim); | |
2800 | bfa_tskim_qcomp(tskim, __bfa_cb_tskim_failed); | |
2801 | break; | |
2802 | ||
2803 | default: | |
2804 | bfa_sm_fault(tskim->bfa, event); | |
2805 | } | |
2806 | } | |
2807 | ||
5fbe25c7 | 2808 | /* |
da99dcc9 | 2809 | * Task management command is waiting for room in request CQ |
a36c61f9 KG |
2810 | */ |
2811 | static void | |
2812 | bfa_tskim_sm_qfull(struct bfa_tskim_s *tskim, enum bfa_tskim_event event) | |
2813 | { | |
2814 | bfa_trc(tskim->bfa, event); | |
2815 | ||
2816 | switch (event) { | |
2817 | case BFA_TSKIM_SM_QRESUME: | |
2818 | bfa_sm_set_state(tskim, bfa_tskim_sm_active); | |
2819 | bfa_tskim_send(tskim); | |
2820 | break; | |
2821 | ||
2822 | case BFA_TSKIM_SM_CLEANUP: | |
5fbe25c7 | 2823 | /* |
a36c61f9 KG |
2824 | * No need to send TM on wire since ITN is offline. |
2825 | */ | |
2826 | bfa_sm_set_state(tskim, bfa_tskim_sm_iocleanup); | |
2827 | bfa_reqq_wcancel(&tskim->reqq_wait); | |
2828 | bfa_tskim_cleanup_ios(tskim); | |
2829 | break; | |
2830 | ||
2831 | case BFA_TSKIM_SM_HWFAIL: | |
2832 | bfa_sm_set_state(tskim, bfa_tskim_sm_hcb); | |
2833 | bfa_reqq_wcancel(&tskim->reqq_wait); | |
2834 | bfa_tskim_iocdisable_ios(tskim); | |
2835 | bfa_tskim_qcomp(tskim, __bfa_cb_tskim_failed); | |
2836 | break; | |
2837 | ||
2838 | default: | |
2839 | bfa_sm_fault(tskim->bfa, event); | |
2840 | } | |
2841 | } | |
2842 | ||
5fbe25c7 | 2843 | /* |
da99dcc9 MZ |
2844 | * Task management command is active, awaiting for room in request CQ |
2845 | * to send clean up request. | |
a36c61f9 KG |
2846 | */ |
2847 | static void | |
2848 | bfa_tskim_sm_cleanup_qfull(struct bfa_tskim_s *tskim, | |
2849 | enum bfa_tskim_event event) | |
2850 | { | |
2851 | bfa_trc(tskim->bfa, event); | |
2852 | ||
2853 | switch (event) { | |
2854 | case BFA_TSKIM_SM_DONE: | |
2855 | bfa_reqq_wcancel(&tskim->reqq_wait); | |
5fbe25c7 | 2856 | /* |
a36c61f9 KG |
2857 | * Fall through !!! |
2858 | */ | |
a36c61f9 KG |
2859 | case BFA_TSKIM_SM_QRESUME: |
2860 | bfa_sm_set_state(tskim, bfa_tskim_sm_cleanup); | |
2861 | bfa_tskim_send_abort(tskim); | |
2862 | break; | |
2863 | ||
2864 | case BFA_TSKIM_SM_HWFAIL: | |
2865 | bfa_sm_set_state(tskim, bfa_tskim_sm_hcb); | |
2866 | bfa_reqq_wcancel(&tskim->reqq_wait); | |
2867 | bfa_tskim_iocdisable_ios(tskim); | |
2868 | bfa_tskim_qcomp(tskim, __bfa_cb_tskim_failed); | |
2869 | break; | |
2870 | ||
2871 | default: | |
2872 | bfa_sm_fault(tskim->bfa, event); | |
2873 | } | |
2874 | } | |
2875 | ||
5fbe25c7 | 2876 | /* |
da99dcc9 | 2877 | * BFA callback is pending |
a36c61f9 KG |
2878 | */ |
2879 | static void | |
2880 | bfa_tskim_sm_hcb(struct bfa_tskim_s *tskim, enum bfa_tskim_event event) | |
2881 | { | |
2882 | bfa_trc(tskim->bfa, event); | |
2883 | ||
2884 | switch (event) { | |
2885 | case BFA_TSKIM_SM_HCB: | |
2886 | bfa_sm_set_state(tskim, bfa_tskim_sm_uninit); | |
2887 | bfa_tskim_free(tskim); | |
2888 | break; | |
2889 | ||
2890 | case BFA_TSKIM_SM_CLEANUP: | |
2891 | bfa_tskim_notify_comp(tskim); | |
2892 | break; | |
2893 | ||
2894 | case BFA_TSKIM_SM_HWFAIL: | |
2895 | break; | |
2896 | ||
2897 | default: | |
2898 | bfa_sm_fault(tskim->bfa, event); | |
2899 | } | |
2900 | } | |
2901 | ||
a36c61f9 KG |
2902 | static void |
2903 | __bfa_cb_tskim_done(void *cbarg, bfa_boolean_t complete) | |
2904 | { | |
2905 | struct bfa_tskim_s *tskim = cbarg; | |
2906 | ||
2907 | if (!complete) { | |
2908 | bfa_sm_send_event(tskim, BFA_TSKIM_SM_HCB); | |
2909 | return; | |
2910 | } | |
2911 | ||
2912 | bfa_stats(tskim->itnim, tm_success); | |
2913 | bfa_cb_tskim_done(tskim->bfa->bfad, tskim->dtsk, tskim->tsk_status); | |
2914 | } | |
2915 | ||
2916 | static void | |
2917 | __bfa_cb_tskim_failed(void *cbarg, bfa_boolean_t complete) | |
2918 | { | |
2919 | struct bfa_tskim_s *tskim = cbarg; | |
2920 | ||
2921 | if (!complete) { | |
2922 | bfa_sm_send_event(tskim, BFA_TSKIM_SM_HCB); | |
2923 | return; | |
2924 | } | |
2925 | ||
2926 | bfa_stats(tskim->itnim, tm_failures); | |
2927 | bfa_cb_tskim_done(tskim->bfa->bfad, tskim->dtsk, | |
2928 | BFI_TSKIM_STS_FAILED); | |
2929 | } | |
2930 | ||
da99dcc9 | 2931 | static bfa_boolean_t |
f314878a | 2932 | bfa_tskim_match_scope(struct bfa_tskim_s *tskim, struct scsi_lun lun) |
a36c61f9 KG |
2933 | { |
2934 | switch (tskim->tm_cmnd) { | |
2935 | case FCP_TM_TARGET_RESET: | |
2936 | return BFA_TRUE; | |
2937 | ||
2938 | case FCP_TM_ABORT_TASK_SET: | |
2939 | case FCP_TM_CLEAR_TASK_SET: | |
2940 | case FCP_TM_LUN_RESET: | |
2941 | case FCP_TM_CLEAR_ACA: | |
da99dcc9 | 2942 | return !memcmp(&tskim->lun, &lun, sizeof(lun)); |
a36c61f9 KG |
2943 | |
2944 | default: | |
2945 | bfa_assert(0); | |
2946 | } | |
2947 | ||
2948 | return BFA_FALSE; | |
2949 | } | |
2950 | ||
5fbe25c7 | 2951 | /* |
da99dcc9 | 2952 | * Gather affected IO requests and task management commands. |
a36c61f9 KG |
2953 | */ |
2954 | static void | |
2955 | bfa_tskim_gather_ios(struct bfa_tskim_s *tskim) | |
2956 | { | |
2957 | struct bfa_itnim_s *itnim = tskim->itnim; | |
2958 | struct bfa_ioim_s *ioim; | |
f314878a MZ |
2959 | struct list_head *qe, *qen; |
2960 | struct scsi_cmnd *cmnd; | |
2961 | struct scsi_lun scsilun; | |
a36c61f9 KG |
2962 | |
2963 | INIT_LIST_HEAD(&tskim->io_q); | |
2964 | ||
5fbe25c7 | 2965 | /* |
a36c61f9 KG |
2966 | * Gather any active IO requests first. |
2967 | */ | |
2968 | list_for_each_safe(qe, qen, &itnim->io_q) { | |
2969 | ioim = (struct bfa_ioim_s *) qe; | |
f314878a MZ |
2970 | cmnd = (struct scsi_cmnd *) ioim->dio; |
2971 | int_to_scsilun(cmnd->device->lun, &scsilun); | |
2972 | if (bfa_tskim_match_scope(tskim, scsilun)) { | |
a36c61f9 KG |
2973 | list_del(&ioim->qe); |
2974 | list_add_tail(&ioim->qe, &tskim->io_q); | |
2975 | } | |
2976 | } | |
2977 | ||
5fbe25c7 | 2978 | /* |
a36c61f9 KG |
2979 | * Failback any pending IO requests immediately. |
2980 | */ | |
2981 | list_for_each_safe(qe, qen, &itnim->pending_q) { | |
2982 | ioim = (struct bfa_ioim_s *) qe; | |
f314878a MZ |
2983 | cmnd = (struct scsi_cmnd *) ioim->dio; |
2984 | int_to_scsilun(cmnd->device->lun, &scsilun); | |
2985 | if (bfa_tskim_match_scope(tskim, scsilun)) { | |
a36c61f9 KG |
2986 | list_del(&ioim->qe); |
2987 | list_add_tail(&ioim->qe, &ioim->fcpim->ioim_comp_q); | |
2988 | bfa_ioim_tov(ioim); | |
2989 | } | |
2990 | } | |
2991 | } | |
2992 | ||
5fbe25c7 | 2993 | /* |
da99dcc9 | 2994 | * IO cleanup completion |
a36c61f9 KG |
2995 | */ |
2996 | static void | |
2997 | bfa_tskim_cleanp_comp(void *tskim_cbarg) | |
2998 | { | |
2999 | struct bfa_tskim_s *tskim = tskim_cbarg; | |
3000 | ||
3001 | bfa_stats(tskim->itnim, tm_io_comps); | |
3002 | bfa_sm_send_event(tskim, BFA_TSKIM_SM_IOS_DONE); | |
3003 | } | |
3004 | ||
5fbe25c7 | 3005 | /* |
da99dcc9 | 3006 | * Gather affected IO requests and task management commands. |
a36c61f9 KG |
3007 | */ |
3008 | static void | |
3009 | bfa_tskim_cleanup_ios(struct bfa_tskim_s *tskim) | |
3010 | { | |
3011 | struct bfa_ioim_s *ioim; | |
3012 | struct list_head *qe, *qen; | |
3013 | ||
3014 | bfa_wc_init(&tskim->wc, bfa_tskim_cleanp_comp, tskim); | |
3015 | ||
3016 | list_for_each_safe(qe, qen, &tskim->io_q) { | |
3017 | ioim = (struct bfa_ioim_s *) qe; | |
3018 | bfa_wc_up(&tskim->wc); | |
3019 | bfa_ioim_cleanup_tm(ioim, tskim); | |
3020 | } | |
3021 | ||
3022 | bfa_wc_wait(&tskim->wc); | |
3023 | } | |
3024 | ||
5fbe25c7 | 3025 | /* |
da99dcc9 | 3026 | * Send task management request to firmware. |
a36c61f9 KG |
3027 | */ |
3028 | static bfa_boolean_t | |
3029 | bfa_tskim_send(struct bfa_tskim_s *tskim) | |
3030 | { | |
3031 | struct bfa_itnim_s *itnim = tskim->itnim; | |
3032 | struct bfi_tskim_req_s *m; | |
3033 | ||
5fbe25c7 | 3034 | /* |
a36c61f9 KG |
3035 | * check for room in queue to send request now |
3036 | */ | |
3037 | m = bfa_reqq_next(tskim->bfa, itnim->reqq); | |
3038 | if (!m) | |
3039 | return BFA_FALSE; | |
3040 | ||
5fbe25c7 | 3041 | /* |
a36c61f9 KG |
3042 | * build i/o request message next |
3043 | */ | |
3044 | bfi_h2i_set(m->mh, BFI_MC_TSKIM, BFI_TSKIM_H2I_TM_REQ, | |
3045 | bfa_lpuid(tskim->bfa)); | |
3046 | ||
ba816ea8 | 3047 | m->tsk_tag = cpu_to_be16(tskim->tsk_tag); |
a36c61f9 KG |
3048 | m->itn_fhdl = tskim->itnim->rport->fw_handle; |
3049 | m->t_secs = tskim->tsecs; | |
3050 | m->lun = tskim->lun; | |
3051 | m->tm_flags = tskim->tm_cmnd; | |
3052 | ||
5fbe25c7 | 3053 | /* |
a36c61f9 KG |
3054 | * queue I/O message to firmware |
3055 | */ | |
3056 | bfa_reqq_produce(tskim->bfa, itnim->reqq); | |
3057 | return BFA_TRUE; | |
3058 | } | |
3059 | ||
5fbe25c7 | 3060 | /* |
da99dcc9 | 3061 | * Send abort request to cleanup an active TM to firmware. |
a36c61f9 KG |
3062 | */ |
3063 | static bfa_boolean_t | |
3064 | bfa_tskim_send_abort(struct bfa_tskim_s *tskim) | |
3065 | { | |
3066 | struct bfa_itnim_s *itnim = tskim->itnim; | |
3067 | struct bfi_tskim_abortreq_s *m; | |
3068 | ||
5fbe25c7 | 3069 | /* |
a36c61f9 KG |
3070 | * check for room in queue to send request now |
3071 | */ | |
3072 | m = bfa_reqq_next(tskim->bfa, itnim->reqq); | |
3073 | if (!m) | |
3074 | return BFA_FALSE; | |
3075 | ||
5fbe25c7 | 3076 | /* |
a36c61f9 KG |
3077 | * build i/o request message next |
3078 | */ | |
3079 | bfi_h2i_set(m->mh, BFI_MC_TSKIM, BFI_TSKIM_H2I_ABORT_REQ, | |
3080 | bfa_lpuid(tskim->bfa)); | |
3081 | ||
ba816ea8 | 3082 | m->tsk_tag = cpu_to_be16(tskim->tsk_tag); |
a36c61f9 | 3083 | |
5fbe25c7 | 3084 | /* |
a36c61f9 KG |
3085 | * queue I/O message to firmware |
3086 | */ | |
3087 | bfa_reqq_produce(tskim->bfa, itnim->reqq); | |
3088 | return BFA_TRUE; | |
3089 | } | |
3090 | ||
5fbe25c7 | 3091 | /* |
da99dcc9 | 3092 | * Call to resume task management cmnd waiting for room in request queue. |
a36c61f9 KG |
3093 | */ |
3094 | static void | |
3095 | bfa_tskim_qresume(void *cbarg) | |
3096 | { | |
3097 | struct bfa_tskim_s *tskim = cbarg; | |
3098 | ||
3099 | bfa_stats(tskim->itnim, tm_qresumes); | |
3100 | bfa_sm_send_event(tskim, BFA_TSKIM_SM_QRESUME); | |
3101 | } | |
3102 | ||
5fbe25c7 | 3103 | /* |
a36c61f9 KG |
3104 | * Cleanup IOs associated with a task mangement command on IOC failures. |
3105 | */ | |
3106 | static void | |
3107 | bfa_tskim_iocdisable_ios(struct bfa_tskim_s *tskim) | |
3108 | { | |
3109 | struct bfa_ioim_s *ioim; | |
3110 | struct list_head *qe, *qen; | |
3111 | ||
3112 | list_for_each_safe(qe, qen, &tskim->io_q) { | |
3113 | ioim = (struct bfa_ioim_s *) qe; | |
3114 | bfa_ioim_iocdisable(ioim); | |
3115 | } | |
3116 | } | |
3117 | ||
5fbe25c7 | 3118 | /* |
a36c61f9 KG |
3119 | * Notification on completions from related ioim. |
3120 | */ | |
3121 | void | |
3122 | bfa_tskim_iodone(struct bfa_tskim_s *tskim) | |
3123 | { | |
3124 | bfa_wc_down(&tskim->wc); | |
3125 | } | |
3126 | ||
5fbe25c7 | 3127 | /* |
a36c61f9 KG |
3128 | * Handle IOC h/w failure notification from itnim. |
3129 | */ | |
3130 | void | |
3131 | bfa_tskim_iocdisable(struct bfa_tskim_s *tskim) | |
3132 | { | |
3133 | tskim->notify = BFA_FALSE; | |
3134 | bfa_stats(tskim->itnim, tm_iocdowns); | |
3135 | bfa_sm_send_event(tskim, BFA_TSKIM_SM_HWFAIL); | |
3136 | } | |
3137 | ||
5fbe25c7 | 3138 | /* |
a36c61f9 KG |
3139 | * Cleanup TM command and associated IOs as part of ITNIM offline. |
3140 | */ | |
3141 | void | |
3142 | bfa_tskim_cleanup(struct bfa_tskim_s *tskim) | |
3143 | { | |
3144 | tskim->notify = BFA_TRUE; | |
3145 | bfa_stats(tskim->itnim, tm_cleanups); | |
3146 | bfa_sm_send_event(tskim, BFA_TSKIM_SM_CLEANUP); | |
3147 | } | |
3148 | ||
5fbe25c7 | 3149 | /* |
da99dcc9 | 3150 | * Memory allocation and initialization. |
a36c61f9 KG |
3151 | */ |
3152 | void | |
3153 | bfa_tskim_attach(struct bfa_fcpim_mod_s *fcpim, struct bfa_meminfo_s *minfo) | |
3154 | { | |
3155 | struct bfa_tskim_s *tskim; | |
3156 | u16 i; | |
3157 | ||
3158 | INIT_LIST_HEAD(&fcpim->tskim_free_q); | |
3159 | ||
3160 | tskim = (struct bfa_tskim_s *) bfa_meminfo_kva(minfo); | |
3161 | fcpim->tskim_arr = tskim; | |
3162 | ||
3163 | for (i = 0; i < fcpim->num_tskim_reqs; i++, tskim++) { | |
3164 | /* | |
3165 | * initialize TSKIM | |
3166 | */ | |
6a18b167 | 3167 | memset(tskim, 0, sizeof(struct bfa_tskim_s)); |
a36c61f9 KG |
3168 | tskim->tsk_tag = i; |
3169 | tskim->bfa = fcpim->bfa; | |
3170 | tskim->fcpim = fcpim; | |
3171 | tskim->notify = BFA_FALSE; | |
3172 | bfa_reqq_winit(&tskim->reqq_wait, bfa_tskim_qresume, | |
3173 | tskim); | |
3174 | bfa_sm_set_state(tskim, bfa_tskim_sm_uninit); | |
3175 | ||
3176 | list_add_tail(&tskim->qe, &fcpim->tskim_free_q); | |
3177 | } | |
3178 | ||
3179 | bfa_meminfo_kva(minfo) = (u8 *) tskim; | |
3180 | } | |
3181 | ||
a36c61f9 KG |
3182 | void |
3183 | bfa_tskim_isr(struct bfa_s *bfa, struct bfi_msg_s *m) | |
3184 | { | |
3185 | struct bfa_fcpim_mod_s *fcpim = BFA_FCPIM_MOD(bfa); | |
3186 | struct bfi_tskim_rsp_s *rsp = (struct bfi_tskim_rsp_s *) m; | |
3187 | struct bfa_tskim_s *tskim; | |
ba816ea8 | 3188 | u16 tsk_tag = be16_to_cpu(rsp->tsk_tag); |
a36c61f9 KG |
3189 | |
3190 | tskim = BFA_TSKIM_FROM_TAG(fcpim, tsk_tag); | |
3191 | bfa_assert(tskim->tsk_tag == tsk_tag); | |
3192 | ||
3193 | tskim->tsk_status = rsp->tsk_status; | |
3194 | ||
5fbe25c7 | 3195 | /* |
a36c61f9 KG |
3196 | * Firmware sends BFI_TSKIM_STS_ABORTED status for abort |
3197 | * requests. All other statuses are for normal completions. | |
3198 | */ | |
3199 | if (rsp->tsk_status == BFI_TSKIM_STS_ABORTED) { | |
3200 | bfa_stats(tskim->itnim, tm_cleanup_comps); | |
3201 | bfa_sm_send_event(tskim, BFA_TSKIM_SM_CLEANUP_DONE); | |
3202 | } else { | |
3203 | bfa_stats(tskim->itnim, tm_fw_rsps); | |
3204 | bfa_sm_send_event(tskim, BFA_TSKIM_SM_DONE); | |
3205 | } | |
3206 | } | |
3207 | ||
3208 | ||
a36c61f9 KG |
3209 | struct bfa_tskim_s * |
3210 | bfa_tskim_alloc(struct bfa_s *bfa, struct bfad_tskim_s *dtsk) | |
3211 | { | |
3212 | struct bfa_fcpim_mod_s *fcpim = BFA_FCPIM_MOD(bfa); | |
3213 | struct bfa_tskim_s *tskim; | |
3214 | ||
3215 | bfa_q_deq(&fcpim->tskim_free_q, &tskim); | |
3216 | ||
3217 | if (tskim) | |
3218 | tskim->dtsk = dtsk; | |
3219 | ||
3220 | return tskim; | |
3221 | } | |
3222 | ||
3223 | void | |
3224 | bfa_tskim_free(struct bfa_tskim_s *tskim) | |
3225 | { | |
3226 | bfa_assert(bfa_q_is_on_q_func(&tskim->itnim->tsk_q, &tskim->qe)); | |
3227 | list_del(&tskim->qe); | |
3228 | list_add_tail(&tskim->qe, &tskim->fcpim->tskim_free_q); | |
3229 | } | |
3230 | ||
5fbe25c7 | 3231 | /* |
da99dcc9 | 3232 | * Start a task management command. |
a36c61f9 KG |
3233 | * |
3234 | * @param[in] tskim BFA task management command instance | |
3235 | * @param[in] itnim i-t nexus for the task management command | |
3236 | * @param[in] lun lun, if applicable | |
3237 | * @param[in] tm_cmnd Task management command code. | |
3238 | * @param[in] t_secs Timeout in seconds | |
3239 | * | |
3240 | * @return None. | |
3241 | */ | |
3242 | void | |
f314878a MZ |
3243 | bfa_tskim_start(struct bfa_tskim_s *tskim, struct bfa_itnim_s *itnim, |
3244 | struct scsi_lun lun, | |
a36c61f9 KG |
3245 | enum fcp_tm_cmnd tm_cmnd, u8 tsecs) |
3246 | { | |
3247 | tskim->itnim = itnim; | |
3248 | tskim->lun = lun; | |
3249 | tskim->tm_cmnd = tm_cmnd; | |
3250 | tskim->tsecs = tsecs; | |
3251 | tskim->notify = BFA_FALSE; | |
3252 | bfa_stats(itnim, tm_cmnds); | |
3253 | ||
3254 | list_add_tail(&tskim->qe, &itnim->tsk_q); | |
3255 | bfa_sm_send_event(tskim, BFA_TSKIM_SM_START); | |
3256 | } |