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ARM: 7409/1: Do not call flush_cache_user_range with mmap_sem held
[linux/fpc-iii.git] / drivers / net / bna / bfa_ioc.c
blobfcb9bb3169e05c36fb2c0c9923938e1b67c30317
1 /*
2 * Linux network driver for Brocade Converged Network Adapter.
3 *
4 * This program is free software; you can redistribute it and/or modify it
5 * under the terms of the GNU General Public License (GPL) Version 2 as
6 * published by the Free Software Foundation
7 *
8 * This program is distributed in the hope that it will be useful, but
9 * WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
11 * General Public License for more details.
12 */
13 /*
14 * Copyright (c) 2005-2010 Brocade Communications Systems, Inc.
15 * All rights reserved
16 * www.brocade.com
17 */
18
19 #include "bfa_ioc.h"
20 #include "cna.h"
21 #include "bfi.h"
22 #include "bfi_ctreg.h"
23 #include "bfa_defs.h"
24
25 /**
26 * IOC local definitions
27 */
28
29 /**
30 * Asic specific macros : see bfa_hw_cb.c and bfa_hw_ct.c for details.
31 */
32
33 #define bfa_ioc_firmware_lock(__ioc) \
34 ((__ioc)->ioc_hwif->ioc_firmware_lock(__ioc))
35 #define bfa_ioc_firmware_unlock(__ioc) \
36 ((__ioc)->ioc_hwif->ioc_firmware_unlock(__ioc))
37 #define bfa_ioc_reg_init(__ioc) ((__ioc)->ioc_hwif->ioc_reg_init(__ioc))
38 #define bfa_ioc_map_port(__ioc) ((__ioc)->ioc_hwif->ioc_map_port(__ioc))
39 #define bfa_ioc_notify_fail(__ioc) \
40 ((__ioc)->ioc_hwif->ioc_notify_fail(__ioc))
41 #define bfa_ioc_sync_start(__ioc) \
42 ((__ioc)->ioc_hwif->ioc_sync_start(__ioc))
43 #define bfa_ioc_sync_join(__ioc) \
44 ((__ioc)->ioc_hwif->ioc_sync_join(__ioc))
45 #define bfa_ioc_sync_leave(__ioc) \
46 ((__ioc)->ioc_hwif->ioc_sync_leave(__ioc))
47 #define bfa_ioc_sync_ack(__ioc) \
48 ((__ioc)->ioc_hwif->ioc_sync_ack(__ioc))
49 #define bfa_ioc_sync_complete(__ioc) \
50 ((__ioc)->ioc_hwif->ioc_sync_complete(__ioc))
51
52 #define bfa_ioc_mbox_cmd_pending(__ioc) \
53 (!list_empty(&((__ioc)->mbox_mod.cmd_q)) || \
54 readl((__ioc)->ioc_regs.hfn_mbox_cmd))
55
56 static bool bfa_nw_auto_recover = true;
57
58 /*
59 * forward declarations
60 */
61 static void bfa_ioc_hw_sem_get(struct bfa_ioc *ioc);
62 static void bfa_ioc_hw_sem_get_cancel(struct bfa_ioc *ioc);
63 static void bfa_ioc_hwinit(struct bfa_ioc *ioc, bool force);
64 static void bfa_ioc_send_enable(struct bfa_ioc *ioc);
65 static void bfa_ioc_send_disable(struct bfa_ioc *ioc);
66 static void bfa_ioc_send_getattr(struct bfa_ioc *ioc);
67 static void bfa_ioc_hb_monitor(struct bfa_ioc *ioc);
68 static void bfa_ioc_hb_stop(struct bfa_ioc *ioc);
69 static void bfa_ioc_reset(struct bfa_ioc *ioc, bool force);
70 static void bfa_ioc_mbox_poll(struct bfa_ioc *ioc);
71 static void bfa_ioc_mbox_hbfail(struct bfa_ioc *ioc);
72 static void bfa_ioc_recover(struct bfa_ioc *ioc);
73 static void bfa_ioc_check_attr_wwns(struct bfa_ioc *ioc);
74 static void bfa_ioc_disable_comp(struct bfa_ioc *ioc);
75 static void bfa_ioc_lpu_stop(struct bfa_ioc *ioc);
76 static void bfa_ioc_fail_notify(struct bfa_ioc *ioc);
77 static void bfa_ioc_pf_enabled(struct bfa_ioc *ioc);
78 static void bfa_ioc_pf_disabled(struct bfa_ioc *ioc);
79 static void bfa_ioc_pf_initfailed(struct bfa_ioc *ioc);
80 static void bfa_ioc_pf_failed(struct bfa_ioc *ioc);
81 static void bfa_ioc_pf_fwmismatch(struct bfa_ioc *ioc);
82 static void bfa_ioc_boot(struct bfa_ioc *ioc, u32 boot_type,
83 u32 boot_param);
84 static u32 bfa_ioc_smem_pgnum(struct bfa_ioc *ioc, u32 fmaddr);
85 static void bfa_ioc_get_adapter_serial_num(struct bfa_ioc *ioc,
86 char *serial_num);
87 static void bfa_ioc_get_adapter_fw_ver(struct bfa_ioc *ioc,
88 char *fw_ver);
89 static void bfa_ioc_get_pci_chip_rev(struct bfa_ioc *ioc,
90 char *chip_rev);
91 static void bfa_ioc_get_adapter_optrom_ver(struct bfa_ioc *ioc,
92 char *optrom_ver);
93 static void bfa_ioc_get_adapter_manufacturer(struct bfa_ioc *ioc,
94 char *manufacturer);
95 static void bfa_ioc_get_adapter_model(struct bfa_ioc *ioc, char *model);
96 static u64 bfa_ioc_get_pwwn(struct bfa_ioc *ioc);
97
98 /**
99 * IOC state machine definitions/declarations
100 */
101 enum ioc_event {
102 IOC_E_RESET = 1, /*!< IOC reset request */
103 IOC_E_ENABLE = 2, /*!< IOC enable request */
104 IOC_E_DISABLE = 3, /*!< IOC disable request */
105 IOC_E_DETACH = 4, /*!< driver detach cleanup */
106 IOC_E_ENABLED = 5, /*!< f/w enabled */
107 IOC_E_FWRSP_GETATTR = 6, /*!< IOC get attribute response */
108 IOC_E_DISABLED = 7, /*!< f/w disabled */
109 IOC_E_INITFAILED = 8, /*!< failure notice by iocpf sm */
110 IOC_E_PFAILED = 9, /*!< failure notice by iocpf sm */
111 IOC_E_HBFAIL = 10, /*!< heartbeat failure */
112 IOC_E_HWERROR = 11, /*!< hardware error interrupt */
113 IOC_E_TIMEOUT = 12, /*!< timeout */
114 };
115
116 bfa_fsm_state_decl(bfa_ioc, uninit, struct bfa_ioc, enum ioc_event);
117 bfa_fsm_state_decl(bfa_ioc, reset, struct bfa_ioc, enum ioc_event);
118 bfa_fsm_state_decl(bfa_ioc, enabling, struct bfa_ioc, enum ioc_event);
119 bfa_fsm_state_decl(bfa_ioc, getattr, struct bfa_ioc, enum ioc_event);
120 bfa_fsm_state_decl(bfa_ioc, op, struct bfa_ioc, enum ioc_event);
121 bfa_fsm_state_decl(bfa_ioc, fail_retry, struct bfa_ioc, enum ioc_event);
122 bfa_fsm_state_decl(bfa_ioc, fail, struct bfa_ioc, enum ioc_event);
123 bfa_fsm_state_decl(bfa_ioc, disabling, struct bfa_ioc, enum ioc_event);
124 bfa_fsm_state_decl(bfa_ioc, disabled, struct bfa_ioc, enum ioc_event);
125
126 static struct bfa_sm_table ioc_sm_table[] = {
127 {BFA_SM(bfa_ioc_sm_uninit), BFA_IOC_UNINIT},
128 {BFA_SM(bfa_ioc_sm_reset), BFA_IOC_RESET},
129 {BFA_SM(bfa_ioc_sm_enabling), BFA_IOC_ENABLING},
130 {BFA_SM(bfa_ioc_sm_getattr), BFA_IOC_GETATTR},
131 {BFA_SM(bfa_ioc_sm_op), BFA_IOC_OPERATIONAL},
132 {BFA_SM(bfa_ioc_sm_fail_retry), BFA_IOC_INITFAIL},
133 {BFA_SM(bfa_ioc_sm_fail), BFA_IOC_FAIL},
134 {BFA_SM(bfa_ioc_sm_disabling), BFA_IOC_DISABLING},
135 {BFA_SM(bfa_ioc_sm_disabled), BFA_IOC_DISABLED},
136 };
137
138 /**
139 * IOCPF state machine definitions/declarations
140 */
141
142 /*
143 * Forward declareations for iocpf state machine
144 */
145 static void bfa_iocpf_enable(struct bfa_ioc *ioc);
146 static void bfa_iocpf_disable(struct bfa_ioc *ioc);
147 static void bfa_iocpf_fail(struct bfa_ioc *ioc);
148 static void bfa_iocpf_initfail(struct bfa_ioc *ioc);
149 static void bfa_iocpf_getattrfail(struct bfa_ioc *ioc);
150 static void bfa_iocpf_stop(struct bfa_ioc *ioc);
151
152 /**
153 * IOCPF state machine events
154 */
155 enum iocpf_event {
156 IOCPF_E_ENABLE = 1, /*!< IOCPF enable request */
157 IOCPF_E_DISABLE = 2, /*!< IOCPF disable request */
158 IOCPF_E_STOP = 3, /*!< stop on driver detach */
159 IOCPF_E_FWREADY = 4, /*!< f/w initialization done */
160 IOCPF_E_FWRSP_ENABLE = 5, /*!< enable f/w response */
161 IOCPF_E_FWRSP_DISABLE = 6, /*!< disable f/w response */
162 IOCPF_E_FAIL = 7, /*!< failure notice by ioc sm */
163 IOCPF_E_INITFAIL = 8, /*!< init fail notice by ioc sm */
164 IOCPF_E_GETATTRFAIL = 9, /*!< init fail notice by ioc sm */
165 IOCPF_E_SEMLOCKED = 10, /*!< h/w semaphore is locked */
166 IOCPF_E_TIMEOUT = 11, /*!< f/w response timeout */
167 };
168
169 /**
170 * IOCPF states
171 */
172 enum bfa_iocpf_state {
173 BFA_IOCPF_RESET = 1, /*!< IOC is in reset state */
174 BFA_IOCPF_SEMWAIT = 2, /*!< Waiting for IOC h/w semaphore */
175 BFA_IOCPF_HWINIT = 3, /*!< IOC h/w is being initialized */
176 BFA_IOCPF_READY = 4, /*!< IOCPF is initialized */
177 BFA_IOCPF_INITFAIL = 5, /*!< IOCPF failed */
178 BFA_IOCPF_FAIL = 6, /*!< IOCPF failed */
179 BFA_IOCPF_DISABLING = 7, /*!< IOCPF is being disabled */
180 BFA_IOCPF_DISABLED = 8, /*!< IOCPF is disabled */
181 BFA_IOCPF_FWMISMATCH = 9, /*!< IOC f/w different from drivers */
182 };
183
184 bfa_fsm_state_decl(bfa_iocpf, reset, struct bfa_iocpf, enum iocpf_event);
185 bfa_fsm_state_decl(bfa_iocpf, fwcheck, struct bfa_iocpf, enum iocpf_event);
186 bfa_fsm_state_decl(bfa_iocpf, mismatch, struct bfa_iocpf, enum iocpf_event);
187 bfa_fsm_state_decl(bfa_iocpf, semwait, struct bfa_iocpf, enum iocpf_event);
188 bfa_fsm_state_decl(bfa_iocpf, hwinit, struct bfa_iocpf, enum iocpf_event);
189 bfa_fsm_state_decl(bfa_iocpf, enabling, struct bfa_iocpf, enum iocpf_event);
190 bfa_fsm_state_decl(bfa_iocpf, ready, struct bfa_iocpf, enum iocpf_event);
191 bfa_fsm_state_decl(bfa_iocpf, initfail_sync, struct bfa_iocpf,
192 enum iocpf_event);
193 bfa_fsm_state_decl(bfa_iocpf, initfail, struct bfa_iocpf, enum iocpf_event);
194 bfa_fsm_state_decl(bfa_iocpf, fail_sync, struct bfa_iocpf, enum iocpf_event);
195 bfa_fsm_state_decl(bfa_iocpf, fail, struct bfa_iocpf, enum iocpf_event);
196 bfa_fsm_state_decl(bfa_iocpf, disabling, struct bfa_iocpf, enum iocpf_event);
197 bfa_fsm_state_decl(bfa_iocpf, disabling_sync, struct bfa_iocpf,
198 enum iocpf_event);
199 bfa_fsm_state_decl(bfa_iocpf, disabled, struct bfa_iocpf, enum iocpf_event);
200
201 static struct bfa_sm_table iocpf_sm_table[] = {
202 {BFA_SM(bfa_iocpf_sm_reset), BFA_IOCPF_RESET},
203 {BFA_SM(bfa_iocpf_sm_fwcheck), BFA_IOCPF_FWMISMATCH},
204 {BFA_SM(bfa_iocpf_sm_mismatch), BFA_IOCPF_FWMISMATCH},
205 {BFA_SM(bfa_iocpf_sm_semwait), BFA_IOCPF_SEMWAIT},
206 {BFA_SM(bfa_iocpf_sm_hwinit), BFA_IOCPF_HWINIT},
207 {BFA_SM(bfa_iocpf_sm_enabling), BFA_IOCPF_HWINIT},
208 {BFA_SM(bfa_iocpf_sm_ready), BFA_IOCPF_READY},
209 {BFA_SM(bfa_iocpf_sm_initfail_sync), BFA_IOCPF_INITFAIL},
210 {BFA_SM(bfa_iocpf_sm_initfail), BFA_IOCPF_INITFAIL},
211 {BFA_SM(bfa_iocpf_sm_fail_sync), BFA_IOCPF_FAIL},
212 {BFA_SM(bfa_iocpf_sm_fail), BFA_IOCPF_FAIL},
213 {BFA_SM(bfa_iocpf_sm_disabling), BFA_IOCPF_DISABLING},
214 {BFA_SM(bfa_iocpf_sm_disabling_sync), BFA_IOCPF_DISABLING},
215 {BFA_SM(bfa_iocpf_sm_disabled), BFA_IOCPF_DISABLED},
216 };
217
218 /**
219 * IOC State Machine
220 */
221
222 /**
223 * Beginning state. IOC uninit state.
224 */
225 static void
226 bfa_ioc_sm_uninit_entry(struct bfa_ioc *ioc)
227 {
228 }
229
230 /**
231 * IOC is in uninit state.
232 */
233 static void
234 bfa_ioc_sm_uninit(struct bfa_ioc *ioc, enum ioc_event event)
235 {
236 switch (event) {
237 case IOC_E_RESET:
238 bfa_fsm_set_state(ioc, bfa_ioc_sm_reset);
239 break;
240
241 default:
242 bfa_sm_fault(ioc, event);
243 }
244 }
245
246 /**
247 * Reset entry actions -- initialize state machine
248 */
249 static void
250 bfa_ioc_sm_reset_entry(struct bfa_ioc *ioc)
251 {
252 bfa_fsm_set_state(&ioc->iocpf, bfa_iocpf_sm_reset);
253 }
254
255 /**
256 * IOC is in reset state.
257 */
258 static void
259 bfa_ioc_sm_reset(struct bfa_ioc *ioc, enum ioc_event event)
260 {
261 switch (event) {
262 case IOC_E_ENABLE:
263 bfa_fsm_set_state(ioc, bfa_ioc_sm_enabling);
264 break;
265
266 case IOC_E_DISABLE:
267 bfa_ioc_disable_comp(ioc);
268 break;
269
270 case IOC_E_DETACH:
271 bfa_fsm_set_state(ioc, bfa_ioc_sm_uninit);
272 break;
273
274 default:
275 bfa_sm_fault(ioc, event);
276 }
277 }
278
279 static void
280 bfa_ioc_sm_enabling_entry(struct bfa_ioc *ioc)
281 {
282 bfa_iocpf_enable(ioc);
283 }
284
285 /**
286 * Host IOC function is being enabled, awaiting response from firmware.
287 * Semaphore is acquired.
288 */
289 static void
290 bfa_ioc_sm_enabling(struct bfa_ioc *ioc, enum ioc_event event)
291 {
292 switch (event) {
293 case IOC_E_ENABLED:
294 bfa_fsm_set_state(ioc, bfa_ioc_sm_getattr);
295 break;
296
297 case IOC_E_PFAILED:
298 /* !!! fall through !!! */
299 case IOC_E_HWERROR:
300 ioc->cbfn->enable_cbfn(ioc->bfa, BFA_STATUS_IOC_FAILURE);
301 bfa_fsm_set_state(ioc, bfa_ioc_sm_fail_retry);
302 if (event != IOC_E_PFAILED)
303 bfa_iocpf_initfail(ioc);
304 break;
305
306 case IOC_E_DISABLE:
307 bfa_fsm_set_state(ioc, bfa_ioc_sm_disabling);
308 break;
309
310 case IOC_E_DETACH:
311 bfa_fsm_set_state(ioc, bfa_ioc_sm_uninit);
312 bfa_iocpf_stop(ioc);
313 break;
314
315 case IOC_E_ENABLE:
316 break;
317
318 default:
319 bfa_sm_fault(ioc, event);
320 }
321 }
322
323 /**
324 * Semaphore should be acquired for version check.
325 */
326 static void
327 bfa_ioc_sm_getattr_entry(struct bfa_ioc *ioc)
328 {
329 mod_timer(&ioc->ioc_timer, jiffies +
330 msecs_to_jiffies(BFA_IOC_TOV));
331 bfa_ioc_send_getattr(ioc);
332 }
333
334 /**
335 * IOC configuration in progress. Timer is active.
336 */
337 static void
338 bfa_ioc_sm_getattr(struct bfa_ioc *ioc, enum ioc_event event)
339 {
340 switch (event) {
341 case IOC_E_FWRSP_GETATTR:
342 del_timer(&ioc->ioc_timer);
343 bfa_ioc_check_attr_wwns(ioc);
344 bfa_fsm_set_state(ioc, bfa_ioc_sm_op);
345 break;
346
347 case IOC_E_PFAILED:
348 case IOC_E_HWERROR:
349 del_timer(&ioc->ioc_timer);
350 /* fall through */
351 case IOC_E_TIMEOUT:
352 ioc->cbfn->enable_cbfn(ioc->bfa, BFA_STATUS_IOC_FAILURE);
353 bfa_fsm_set_state(ioc, bfa_ioc_sm_fail_retry);
354 if (event != IOC_E_PFAILED)
355 bfa_iocpf_getattrfail(ioc);
356 break;
357
358 case IOC_E_DISABLE:
359 del_timer(&ioc->ioc_timer);
360 bfa_fsm_set_state(ioc, bfa_ioc_sm_disabling);
361 break;
362
363 case IOC_E_ENABLE:
364 break;
365
366 default:
367 bfa_sm_fault(ioc, event);
368 }
369 }
370
371 static void
372 bfa_ioc_sm_op_entry(struct bfa_ioc *ioc)
373 {
374 ioc->cbfn->enable_cbfn(ioc->bfa, BFA_STATUS_OK);
375 bfa_ioc_hb_monitor(ioc);
376 }
377
378 static void
379 bfa_ioc_sm_op(struct bfa_ioc *ioc, enum ioc_event event)
380 {
381 switch (event) {
382 case IOC_E_ENABLE:
383 break;
384
385 case IOC_E_DISABLE:
386 bfa_ioc_hb_stop(ioc);
387 bfa_fsm_set_state(ioc, bfa_ioc_sm_disabling);
388 break;
389
390 case IOC_E_PFAILED:
391 case IOC_E_HWERROR:
392 bfa_ioc_hb_stop(ioc);
393 /* !!! fall through !!! */
394 case IOC_E_HBFAIL:
395 bfa_ioc_fail_notify(ioc);
396 if (ioc->iocpf.auto_recover)
397 bfa_fsm_set_state(ioc, bfa_ioc_sm_fail_retry);
398 else
399 bfa_fsm_set_state(ioc, bfa_ioc_sm_fail);
400
401 if (event != IOC_E_PFAILED)
402 bfa_iocpf_fail(ioc);
403 break;
404
405 default:
406 bfa_sm_fault(ioc, event);
407 }
408 }
409
410 static void
411 bfa_ioc_sm_disabling_entry(struct bfa_ioc *ioc)
412 {
413 bfa_iocpf_disable(ioc);
414 }
415
416 /**
417 * IOC is being desabled
418 */
419 static void
420 bfa_ioc_sm_disabling(struct bfa_ioc *ioc, enum ioc_event event)
421 {
422 switch (event) {
423 case IOC_E_DISABLED:
424 bfa_fsm_set_state(ioc, bfa_ioc_sm_disabled);
425 break;
426
427 case IOC_E_HWERROR:
428 /*
429 * No state change. Will move to disabled state
430 * after iocpf sm completes failure processing and
431 * moves to disabled state.
432 */
433 bfa_iocpf_fail(ioc);
434 break;
435
436 default:
437 bfa_sm_fault(ioc, event);
438 }
439 }
440
441 /**
442 * IOC desable completion entry.
443 */
444 static void
445 bfa_ioc_sm_disabled_entry(struct bfa_ioc *ioc)
446 {
447 bfa_ioc_disable_comp(ioc);
448 }
449
450 static void
451 bfa_ioc_sm_disabled(struct bfa_ioc *ioc, enum ioc_event event)
452 {
453 switch (event) {
454 case IOC_E_ENABLE:
455 bfa_fsm_set_state(ioc, bfa_ioc_sm_enabling);
456 break;
457
458 case IOC_E_DISABLE:
459 ioc->cbfn->disable_cbfn(ioc->bfa);
460 break;
461
462 case IOC_E_DETACH:
463 bfa_fsm_set_state(ioc, bfa_ioc_sm_uninit);
464 bfa_iocpf_stop(ioc);
465 break;
466
467 default:
468 bfa_sm_fault(ioc, event);
469 }
470 }
471
472 static void
473 bfa_ioc_sm_fail_retry_entry(struct bfa_ioc *ioc)
474 {
475 }
476
477 /**
478 * Hardware initialization retry.
479 */
480 static void
481 bfa_ioc_sm_fail_retry(struct bfa_ioc *ioc, enum ioc_event event)
482 {
483 switch (event) {
484 case IOC_E_ENABLED:
485 bfa_fsm_set_state(ioc, bfa_ioc_sm_getattr);
486 break;
487
488 case IOC_E_PFAILED:
489 case IOC_E_HWERROR:
490 /**
491 * Initialization retry failed.
492 */
493 ioc->cbfn->enable_cbfn(ioc->bfa, BFA_STATUS_IOC_FAILURE);
494 if (event != IOC_E_PFAILED)
495 bfa_iocpf_initfail(ioc);
496 break;
497
498 case IOC_E_INITFAILED:
499 bfa_fsm_set_state(ioc, bfa_ioc_sm_fail);
500 break;
501
502 case IOC_E_ENABLE:
503 break;
504
505 case IOC_E_DISABLE:
506 bfa_fsm_set_state(ioc, bfa_ioc_sm_disabling);
507 break;
508
509 case IOC_E_DETACH:
510 bfa_fsm_set_state(ioc, bfa_ioc_sm_uninit);
511 bfa_iocpf_stop(ioc);
512 break;
513
514 default:
515 bfa_sm_fault(ioc, event);
516 }
517 }
518
519 static void
520 bfa_ioc_sm_fail_entry(struct bfa_ioc *ioc)
521 {
522 }
523
524 /**
525 * IOC failure.
526 */
527 static void
528 bfa_ioc_sm_fail(struct bfa_ioc *ioc, enum ioc_event event)
529 {
530 switch (event) {
531 case IOC_E_ENABLE:
532 ioc->cbfn->enable_cbfn(ioc->bfa, BFA_STATUS_IOC_FAILURE);
533 break;
534
535 case IOC_E_DISABLE:
536 bfa_fsm_set_state(ioc, bfa_ioc_sm_disabling);
537 break;
538
539 case IOC_E_DETACH:
540 bfa_fsm_set_state(ioc, bfa_ioc_sm_uninit);
541 bfa_iocpf_stop(ioc);
542 break;
543
544 case IOC_E_HWERROR:
545 /* HB failure notification, ignore. */
546 break;
547
548 default:
549 bfa_sm_fault(ioc, event);
550 }
551 }
552
553 /**
554 * IOCPF State Machine
555 */
556
557 /**
558 * Reset entry actions -- initialize state machine
559 */
560 static void
561 bfa_iocpf_sm_reset_entry(struct bfa_iocpf *iocpf)
562 {
563 iocpf->retry_count = 0;
564 iocpf->auto_recover = bfa_nw_auto_recover;
565 }
566
567 /**
568 * Beginning state. IOC is in reset state.
569 */
570 static void
571 bfa_iocpf_sm_reset(struct bfa_iocpf *iocpf, enum iocpf_event event)
572 {
573 switch (event) {
574 case IOCPF_E_ENABLE:
575 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_fwcheck);
576 break;
577
578 case IOCPF_E_STOP:
579 break;
580
581 default:
582 bfa_sm_fault(iocpf->ioc, event);
583 }
584 }
585
586 /**
587 * Semaphore should be acquired for version check.
588 */
589 static void
590 bfa_iocpf_sm_fwcheck_entry(struct bfa_iocpf *iocpf)
591 {
592 bfa_ioc_hw_sem_get(iocpf->ioc);
593 }
594
595 /**
596 * Awaiting h/w semaphore to continue with version check.
597 */
598 static void
599 bfa_iocpf_sm_fwcheck(struct bfa_iocpf *iocpf, enum iocpf_event event)
600 {
601 struct bfa_ioc *ioc = iocpf->ioc;
602
603 switch (event) {
604 case IOCPF_E_SEMLOCKED:
605 if (bfa_ioc_firmware_lock(ioc)) {
606 if (bfa_ioc_sync_start(ioc)) {
607 iocpf->retry_count = 0;
608 bfa_ioc_sync_join(ioc);
609 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_hwinit);
610 } else {
611 bfa_ioc_firmware_unlock(ioc);
612 bfa_nw_ioc_hw_sem_release(ioc);
613 mod_timer(&ioc->sem_timer, jiffies +
614 msecs_to_jiffies(BFA_IOC_HWSEM_TOV));
615 }
616 } else {
617 bfa_nw_ioc_hw_sem_release(ioc);
618 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_mismatch);
619 }
620 break;
621
622 case IOCPF_E_DISABLE:
623 bfa_ioc_hw_sem_get_cancel(ioc);
624 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_reset);
625 bfa_ioc_pf_disabled(ioc);
626 break;
627
628 case IOCPF_E_STOP:
629 bfa_ioc_hw_sem_get_cancel(ioc);
630 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_reset);
631 break;
632
633 default:
634 bfa_sm_fault(ioc, event);
635 }
636 }
637
638 /**
639 * Notify enable completion callback
640 */
641 static void
642 bfa_iocpf_sm_mismatch_entry(struct bfa_iocpf *iocpf)
643 {
644 /* Call only the first time sm enters fwmismatch state. */
645 if (iocpf->retry_count == 0)
646 bfa_ioc_pf_fwmismatch(iocpf->ioc);
647
648 iocpf->retry_count++;
649 mod_timer(&(iocpf->ioc)->iocpf_timer, jiffies +
650 msecs_to_jiffies(BFA_IOC_TOV));
651 }
652
653 /**
654 * Awaiting firmware version match.
655 */
656 static void
657 bfa_iocpf_sm_mismatch(struct bfa_iocpf *iocpf, enum iocpf_event event)
658 {
659 struct bfa_ioc *ioc = iocpf->ioc;
660
661 switch (event) {
662 case IOCPF_E_TIMEOUT:
663 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_fwcheck);
664 break;
665
666 case IOCPF_E_DISABLE:
667 del_timer(&ioc->iocpf_timer);
668 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_reset);
669 bfa_ioc_pf_disabled(ioc);
670 break;
671
672 case IOCPF_E_STOP:
673 del_timer(&ioc->iocpf_timer);
674 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_reset);
675 break;
676
677 default:
678 bfa_sm_fault(ioc, event);
679 }
680 }
681
682 /**
683 * Request for semaphore.
684 */
685 static void
686 bfa_iocpf_sm_semwait_entry(struct bfa_iocpf *iocpf)
687 {
688 bfa_ioc_hw_sem_get(iocpf->ioc);
689 }
690
691 /**
692 * Awaiting semaphore for h/w initialzation.
693 */
694 static void
695 bfa_iocpf_sm_semwait(struct bfa_iocpf *iocpf, enum iocpf_event event)
696 {
697 struct bfa_ioc *ioc = iocpf->ioc;
698
699 switch (event) {
700 case IOCPF_E_SEMLOCKED:
701 if (bfa_ioc_sync_complete(ioc)) {
702 bfa_ioc_sync_join(ioc);
703 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_hwinit);
704 } else {
705 bfa_nw_ioc_hw_sem_release(ioc);
706 mod_timer(&ioc->sem_timer, jiffies +
707 msecs_to_jiffies(BFA_IOC_HWSEM_TOV));
708 }
709 break;
710
711 case IOCPF_E_DISABLE:
712 bfa_ioc_hw_sem_get_cancel(ioc);
713 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_disabling_sync);
714 break;
715
716 default:
717 bfa_sm_fault(ioc, event);
718 }
719 }
720
721 static void
722 bfa_iocpf_sm_hwinit_entry(struct bfa_iocpf *iocpf)
723 {
724 mod_timer(&(iocpf->ioc)->iocpf_timer, jiffies +
725 msecs_to_jiffies(BFA_IOC_TOV));
726 bfa_ioc_reset(iocpf->ioc, 0);
727 }
728
729 /**
730 * Hardware is being initialized. Interrupts are enabled.
731 * Holding hardware semaphore lock.
732 */
733 static void
734 bfa_iocpf_sm_hwinit(struct bfa_iocpf *iocpf, enum iocpf_event event)
735 {
736 struct bfa_ioc *ioc = iocpf->ioc;
737
738 switch (event) {
739 case IOCPF_E_FWREADY:
740 del_timer(&ioc->iocpf_timer);
741 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_enabling);
742 break;
743
744 case IOCPF_E_INITFAIL:
745 del_timer(&ioc->iocpf_timer);
746 /*
747 * !!! fall through !!!
748 */
749
750 case IOCPF_E_TIMEOUT:
751 bfa_nw_ioc_hw_sem_release(ioc);
752 if (event == IOCPF_E_TIMEOUT)
753 bfa_ioc_pf_failed(ioc);
754 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_initfail_sync);
755 break;
756
757 case IOCPF_E_DISABLE:
758 del_timer(&ioc->iocpf_timer);
759 bfa_ioc_sync_leave(ioc);
760 bfa_nw_ioc_hw_sem_release(ioc);
761 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_disabled);
762 break;
763
764 default:
765 bfa_sm_fault(ioc, event);
766 }
767 }
768
769 static void
770 bfa_iocpf_sm_enabling_entry(struct bfa_iocpf *iocpf)
771 {
772 mod_timer(&(iocpf->ioc)->iocpf_timer, jiffies +
773 msecs_to_jiffies(BFA_IOC_TOV));
774 bfa_ioc_send_enable(iocpf->ioc);
775 }
776
777 /**
778 * Host IOC function is being enabled, awaiting response from firmware.
779 * Semaphore is acquired.
780 */
781 static void
782 bfa_iocpf_sm_enabling(struct bfa_iocpf *iocpf, enum iocpf_event event)
783 {
784 struct bfa_ioc *ioc = iocpf->ioc;
785
786 switch (event) {
787 case IOCPF_E_FWRSP_ENABLE:
788 del_timer(&ioc->iocpf_timer);
789 bfa_nw_ioc_hw_sem_release(ioc);
790 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_ready);
791 break;
792
793 case IOCPF_E_INITFAIL:
794 del_timer(&ioc->iocpf_timer);
795 /*
796 * !!! fall through !!!
797 */
798 case IOCPF_E_TIMEOUT:
799 bfa_nw_ioc_hw_sem_release(ioc);
800 if (event == IOCPF_E_TIMEOUT)
801 bfa_ioc_pf_failed(ioc);
802 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_initfail_sync);
803 break;
804
805 case IOCPF_E_DISABLE:
806 del_timer(&ioc->iocpf_timer);
807 bfa_nw_ioc_hw_sem_release(ioc);
808 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_disabling);
809 break;
810
811 case IOCPF_E_FWREADY:
812 bfa_ioc_send_enable(ioc);
813 break;
814
815 default:
816 bfa_sm_fault(ioc, event);
817 }
818 }
819
820 static bool
821 bfa_nw_ioc_is_operational(struct bfa_ioc *ioc)
822 {
823 return bfa_fsm_cmp_state(ioc, bfa_ioc_sm_op);
824 }
825
826 static void
827 bfa_iocpf_sm_ready_entry(struct bfa_iocpf *iocpf)
828 {
829 bfa_ioc_pf_enabled(iocpf->ioc);
830 }
831
832 static void
833 bfa_iocpf_sm_ready(struct bfa_iocpf *iocpf, enum iocpf_event event)
834 {
835 struct bfa_ioc *ioc = iocpf->ioc;
836
837 switch (event) {
838 case IOCPF_E_DISABLE:
839 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_disabling);
840 break;
841
842 case IOCPF_E_GETATTRFAIL:
843 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_initfail_sync);
844 break;
845
846 case IOCPF_E_FAIL:
847 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_fail_sync);
848 break;
849
850 case IOCPF_E_FWREADY:
851 bfa_ioc_pf_failed(ioc);
852 if (bfa_nw_ioc_is_operational(ioc))
853 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_fail_sync);
854 else
855 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_initfail_sync);
856 break;
857
858 default:
859 bfa_sm_fault(ioc, event);
860 }
861 }
862
863 static void
864 bfa_iocpf_sm_disabling_entry(struct bfa_iocpf *iocpf)
865 {
866 mod_timer(&(iocpf->ioc)->iocpf_timer, jiffies +
867 msecs_to_jiffies(BFA_IOC_TOV));
868 bfa_ioc_send_disable(iocpf->ioc);
869 }
870
871 /**
872 * IOC is being disabled
873 */
874 static void
875 bfa_iocpf_sm_disabling(struct bfa_iocpf *iocpf, enum iocpf_event event)
876 {
877 struct bfa_ioc *ioc = iocpf->ioc;
878
879 switch (event) {
880 case IOCPF_E_FWRSP_DISABLE:
881 case IOCPF_E_FWREADY:
882 del_timer(&ioc->iocpf_timer);
883 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_disabling_sync);
884 break;
885
886 case IOCPF_E_FAIL:
887 del_timer(&ioc->iocpf_timer);
888 /*
889 * !!! fall through !!!
890 */
891
892 case IOCPF_E_TIMEOUT:
893 writel(BFI_IOC_FAIL, ioc->ioc_regs.ioc_fwstate);
894 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_disabling_sync);
895 break;
896
897 case IOCPF_E_FWRSP_ENABLE:
898 break;
899
900 default:
901 bfa_sm_fault(ioc, event);
902 }
903 }
904
905 static void
906 bfa_iocpf_sm_disabling_sync_entry(struct bfa_iocpf *iocpf)
907 {
908 bfa_ioc_hw_sem_get(iocpf->ioc);
909 }
910
911 /**
912 * IOC hb ack request is being removed.
913 */
914 static void
915 bfa_iocpf_sm_disabling_sync(struct bfa_iocpf *iocpf, enum iocpf_event event)
916 {
917 struct bfa_ioc *ioc = iocpf->ioc;
918
919 switch (event) {
920 case IOCPF_E_SEMLOCKED:
921 bfa_ioc_sync_leave(ioc);
922 bfa_nw_ioc_hw_sem_release(ioc);
923 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_disabled);
924 break;
925
926 case IOCPF_E_FAIL:
927 break;
928
929 default:
930 bfa_sm_fault(ioc, event);
931 }
932 }
933
934 /**
935 * IOC disable completion entry.
936 */
937 static void
938 bfa_iocpf_sm_disabled_entry(struct bfa_iocpf *iocpf)
939 {
940 bfa_ioc_pf_disabled(iocpf->ioc);
941 }
942
943 static void
944 bfa_iocpf_sm_disabled(struct bfa_iocpf *iocpf, enum iocpf_event event)
945 {
946 struct bfa_ioc *ioc = iocpf->ioc;
947
948 switch (event) {
949 case IOCPF_E_ENABLE:
950 iocpf->retry_count = 0;
951 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_semwait);
952 break;
953
954 case IOCPF_E_STOP:
955 bfa_ioc_firmware_unlock(ioc);
956 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_reset);
957 break;
958
959 default:
960 bfa_sm_fault(ioc, event);
961 }
962 }
963
964 static void
965 bfa_iocpf_sm_initfail_sync_entry(struct bfa_iocpf *iocpf)
966 {
967 bfa_ioc_hw_sem_get(iocpf->ioc);
968 }
969
970 /**
971 * Hardware initialization failed.
972 */
973 static void
974 bfa_iocpf_sm_initfail_sync(struct bfa_iocpf *iocpf, enum iocpf_event event)
975 {
976 struct bfa_ioc *ioc = iocpf->ioc;
977
978 switch (event) {
979 case IOCPF_E_SEMLOCKED:
980 bfa_ioc_notify_fail(ioc);
981 bfa_ioc_sync_ack(ioc);
982 iocpf->retry_count++;
983 if (iocpf->retry_count >= BFA_IOC_HWINIT_MAX) {
984 bfa_ioc_sync_leave(ioc);
985 bfa_nw_ioc_hw_sem_release(ioc);
986 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_initfail);
987 } else {
988 if (bfa_ioc_sync_complete(ioc))
989 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_hwinit);
990 else {
991 bfa_nw_ioc_hw_sem_release(ioc);
992 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_semwait);
993 }
994 }
995 break;
996
997 case IOCPF_E_DISABLE:
998 bfa_ioc_hw_sem_get_cancel(ioc);
999 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_disabling_sync);
1000 break;
1001
1002 case IOCPF_E_STOP:
1003 bfa_ioc_hw_sem_get_cancel(ioc);
1004 bfa_ioc_firmware_unlock(ioc);
1005 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_reset);
1006 break;
1007
1008 case IOCPF_E_FAIL:
1009 break;
1010
1011 default:
1012 bfa_sm_fault(ioc, event);
1013 }
1014 }
1015
1016 static void
1017 bfa_iocpf_sm_initfail_entry(struct bfa_iocpf *iocpf)
1018 {
1019 bfa_ioc_pf_initfailed(iocpf->ioc);
1020 }
1021
1022 /**
1023 * Hardware initialization failed.
1024 */
1025 static void
1026 bfa_iocpf_sm_initfail(struct bfa_iocpf *iocpf, enum iocpf_event event)
1027 {
1028 struct bfa_ioc *ioc = iocpf->ioc;
1029
1030 switch (event) {
1031 case IOCPF_E_DISABLE:
1032 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_disabled);
1033 break;
1034
1035 case IOCPF_E_STOP:
1036 bfa_ioc_firmware_unlock(ioc);
1037 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_reset);
1038 break;
1039
1040 default:
1041 bfa_sm_fault(ioc, event);
1042 }
1043 }
1044
1045 static void
1046 bfa_iocpf_sm_fail_sync_entry(struct bfa_iocpf *iocpf)
1047 {
1048 /**
1049 * Mark IOC as failed in hardware and stop firmware.
1050 */
1051 bfa_ioc_lpu_stop(iocpf->ioc);
1052
1053 /**
1054 * Flush any queued up mailbox requests.
1055 */
1056 bfa_ioc_mbox_hbfail(iocpf->ioc);
1057 bfa_ioc_hw_sem_get(iocpf->ioc);
1058 }
1059
1060 /**
1061 * IOC is in failed state.
1062 */
1063 static void
1064 bfa_iocpf_sm_fail_sync(struct bfa_iocpf *iocpf, enum iocpf_event event)
1065 {
1066 struct bfa_ioc *ioc = iocpf->ioc;
1067
1068 switch (event) {
1069 case IOCPF_E_SEMLOCKED:
1070 iocpf->retry_count = 0;
1071 bfa_ioc_sync_ack(ioc);
1072 bfa_ioc_notify_fail(ioc);
1073 if (!iocpf->auto_recover) {
1074 bfa_ioc_sync_leave(ioc);
1075 bfa_nw_ioc_hw_sem_release(ioc);
1076 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_fail);
1077 } else {
1078 if (bfa_ioc_sync_complete(ioc))
1079 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_hwinit);
1080 else {
1081 bfa_nw_ioc_hw_sem_release(ioc);
1082 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_semwait);
1083 }
1084 }
1085 break;
1086
1087 case IOCPF_E_DISABLE:
1088 bfa_ioc_hw_sem_get_cancel(ioc);
1089 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_disabling_sync);
1090 break;
1091
1092 case IOCPF_E_FAIL:
1093 break;
1094
1095 default:
1096 bfa_sm_fault(ioc, event);
1097 }
1098 }
1099
1100 static void
1101 bfa_iocpf_sm_fail_entry(struct bfa_iocpf *iocpf)
1102 {
1103 }
1104
1105 /**
1106 * @brief
1107 * IOC is in failed state.
1108 */
1109 static void
1110 bfa_iocpf_sm_fail(struct bfa_iocpf *iocpf, enum iocpf_event event)
1111 {
1112 switch (event) {
1113 case IOCPF_E_DISABLE:
1114 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_disabled);
1115 break;
1116
1117 default:
1118 bfa_sm_fault(iocpf->ioc, event);
1119 }
1120 }
1121
1122 /**
1123 * BFA IOC private functions
1124 */
1125
1126 static void
1127 bfa_ioc_disable_comp(struct bfa_ioc *ioc)
1128 {
1129 struct list_head *qe;
1130 struct bfa_ioc_hbfail_notify *notify;
1131
1132 ioc->cbfn->disable_cbfn(ioc->bfa);
1133
1134 /**
1135 * Notify common modules registered for notification.
1136 */
1137 list_for_each(qe, &ioc->hb_notify_q) {
1138 notify = (struct bfa_ioc_hbfail_notify *) qe;
1139 notify->cbfn(notify->cbarg);
1140 }
1141 }
1142
1143 bool
1144 bfa_nw_ioc_sem_get(void __iomem *sem_reg)
1145 {
1146 u32 r32;
1147 int cnt = 0;
1148 #define BFA_SEM_SPINCNT 3000
1149
1150 r32 = readl(sem_reg);
1151
1152 while (r32 && (cnt < BFA_SEM_SPINCNT)) {
1153 cnt++;
1154 udelay(2);
1155 r32 = readl(sem_reg);
1156 }
1157
1158 if (r32 == 0)
1159 return true;
1160
1161 BUG_ON(!(cnt < BFA_SEM_SPINCNT));
1162 return false;
1163 }
1164
1165 void
1166 bfa_nw_ioc_sem_release(void __iomem *sem_reg)
1167 {
1168 writel(1, sem_reg);
1169 }
1170
1171 static void
1172 bfa_ioc_hw_sem_get(struct bfa_ioc *ioc)
1173 {
1174 u32 r32;
1175
1176 /**
1177 * First read to the semaphore register will return 0, subsequent reads
1178 * will return 1. Semaphore is released by writing 1 to the register
1179 */
1180 r32 = readl(ioc->ioc_regs.ioc_sem_reg);
1181 if (r32 == 0) {
1182 bfa_fsm_send_event(&ioc->iocpf, IOCPF_E_SEMLOCKED);
1183 return;
1184 }
1185
1186 mod_timer(&ioc->sem_timer, jiffies +
1187 msecs_to_jiffies(BFA_IOC_HWSEM_TOV));
1188 }
1189
1190 void
1191 bfa_nw_ioc_hw_sem_release(struct bfa_ioc *ioc)
1192 {
1193 writel(1, ioc->ioc_regs.ioc_sem_reg);
1194 }
1195
1196 static void
1197 bfa_ioc_hw_sem_get_cancel(struct bfa_ioc *ioc)
1198 {
1199 del_timer(&ioc->sem_timer);
1200 }
1201
1202 /**
1203 * @brief
1204 * Initialize LPU local memory (aka secondary memory / SRAM)
1205 */
1206 static void
1207 bfa_ioc_lmem_init(struct bfa_ioc *ioc)
1208 {
1209 u32 pss_ctl;
1210 int i;
1211 #define PSS_LMEM_INIT_TIME 10000
1212
1213 pss_ctl = readl(ioc->ioc_regs.pss_ctl_reg);
1214 pss_ctl &= ~__PSS_LMEM_RESET;
1215 pss_ctl |= __PSS_LMEM_INIT_EN;
1216
1217 /*
1218 * i2c workaround 12.5khz clock
1219 */
1220 pss_ctl |= __PSS_I2C_CLK_DIV(3UL);
1221 writel(pss_ctl, ioc->ioc_regs.pss_ctl_reg);
1222
1223 /**
1224 * wait for memory initialization to be complete
1225 */
1226 i = 0;
1227 do {
1228 pss_ctl = readl(ioc->ioc_regs.pss_ctl_reg);
1229 i++;
1230 } while (!(pss_ctl & __PSS_LMEM_INIT_DONE) && (i < PSS_LMEM_INIT_TIME));
1231
1232 /**
1233 * If memory initialization is not successful, IOC timeout will catch
1234 * such failures.
1235 */
1236 BUG_ON(!(pss_ctl & __PSS_LMEM_INIT_DONE));
1237
1238 pss_ctl &= ~(__PSS_LMEM_INIT_DONE | __PSS_LMEM_INIT_EN);
1239 writel(pss_ctl, ioc->ioc_regs.pss_ctl_reg);
1240 }
1241
1242 static void
1243 bfa_ioc_lpu_start(struct bfa_ioc *ioc)
1244 {
1245 u32 pss_ctl;
1246
1247 /**
1248 * Take processor out of reset.
1249 */
1250 pss_ctl = readl(ioc->ioc_regs.pss_ctl_reg);
1251 pss_ctl &= ~__PSS_LPU0_RESET;
1252
1253 writel(pss_ctl, ioc->ioc_regs.pss_ctl_reg);
1254 }
1255
1256 static void
1257 bfa_ioc_lpu_stop(struct bfa_ioc *ioc)
1258 {
1259 u32 pss_ctl;
1260
1261 /**
1262 * Put processors in reset.
1263 */
1264 pss_ctl = readl(ioc->ioc_regs.pss_ctl_reg);
1265 pss_ctl |= (__PSS_LPU0_RESET | __PSS_LPU1_RESET);
1266
1267 writel(pss_ctl, ioc->ioc_regs.pss_ctl_reg);
1268 }
1269
1270 /**
1271 * Get driver and firmware versions.
1272 */
1273 void
1274 bfa_nw_ioc_fwver_get(struct bfa_ioc *ioc, struct bfi_ioc_image_hdr *fwhdr)
1275 {
1276 u32 pgnum;
1277 u32 loff = 0;
1278 int i;
1279 u32 *fwsig = (u32 *) fwhdr;
1280
1281 pgnum = bfa_ioc_smem_pgnum(ioc, loff);
1282 writel(pgnum, ioc->ioc_regs.host_page_num_fn);
1283
1284 for (i = 0; i < (sizeof(struct bfi_ioc_image_hdr) / sizeof(u32));
1285 i++) {
1286 fwsig[i] =
1287 swab32(readl((loff) + (ioc->ioc_regs.smem_page_start)));
1288 loff += sizeof(u32);
1289 }
1290 }
1291
1292 /**
1293 * Returns TRUE if same.
1294 */
1295 bool
1296 bfa_nw_ioc_fwver_cmp(struct bfa_ioc *ioc, struct bfi_ioc_image_hdr *fwhdr)
1297 {
1298 struct bfi_ioc_image_hdr *drv_fwhdr;
1299 int i;
1300
1301 drv_fwhdr = (struct bfi_ioc_image_hdr *)
1302 bfa_cb_image_get_chunk(BFA_IOC_FWIMG_TYPE(ioc), 0);
1303
1304 for (i = 0; i < BFI_IOC_MD5SUM_SZ; i++) {
1305 if (fwhdr->md5sum[i] != drv_fwhdr->md5sum[i])
1306 return false;
1307 }
1308
1309 return true;
1310 }
1311
1312 /**
1313 * Return true if current running version is valid. Firmware signature and
1314 * execution context (driver/bios) must match.
1315 */
1316 static bool
1317 bfa_ioc_fwver_valid(struct bfa_ioc *ioc, u32 boot_env)
1318 {
1319 struct bfi_ioc_image_hdr fwhdr, *drv_fwhdr;
1320
1321 bfa_nw_ioc_fwver_get(ioc, &fwhdr);
1322 drv_fwhdr = (struct bfi_ioc_image_hdr *)
1323 bfa_cb_image_get_chunk(BFA_IOC_FWIMG_TYPE(ioc), 0);
1324
1325 if (fwhdr.signature != drv_fwhdr->signature)
1326 return false;
1327
1328 if (swab32(fwhdr.param) != boot_env)
1329 return false;
1330
1331 return bfa_nw_ioc_fwver_cmp(ioc, &fwhdr);
1332 }
1333
1334 /**
1335 * Conditionally flush any pending message from firmware at start.
1336 */
1337 static void
1338 bfa_ioc_msgflush(struct bfa_ioc *ioc)
1339 {
1340 u32 r32;
1341
1342 r32 = readl(ioc->ioc_regs.lpu_mbox_cmd);
1343 if (r32)
1344 writel(1, ioc->ioc_regs.lpu_mbox_cmd);
1345 }
1346
1347 /**
1348 * @img ioc_init_logic.jpg
1349 */
1350 static void
1351 bfa_ioc_hwinit(struct bfa_ioc *ioc, bool force)
1352 {
1353 enum bfi_ioc_state ioc_fwstate;
1354 bool fwvalid;
1355 u32 boot_env;
1356
1357 ioc_fwstate = readl(ioc->ioc_regs.ioc_fwstate);
1358
1359 boot_env = BFI_BOOT_LOADER_OS;
1360
1361 if (force)
1362 ioc_fwstate = BFI_IOC_UNINIT;
1363
1364 /**
1365 * check if firmware is valid
1366 */
1367 fwvalid = (ioc_fwstate == BFI_IOC_UNINIT) ?
1368 false : bfa_ioc_fwver_valid(ioc, boot_env);
1369
1370 if (!fwvalid) {
1371 bfa_ioc_boot(ioc, BFI_BOOT_TYPE_NORMAL, boot_env);
1372 return;
1373 }
1374
1375 /**
1376 * If hardware initialization is in progress (initialized by other IOC),
1377 * just wait for an initialization completion interrupt.
1378 */
1379 if (ioc_fwstate == BFI_IOC_INITING) {
1380 ioc->cbfn->reset_cbfn(ioc->bfa);
1381 return;
1382 }
1383
1384 /**
1385 * If IOC function is disabled and firmware version is same,
1386 * just re-enable IOC.
1387 */
1388 if (ioc_fwstate == BFI_IOC_DISABLED || ioc_fwstate == BFI_IOC_OP) {
1389 /**
1390 * When using MSI-X any pending firmware ready event should
1391 * be flushed. Otherwise MSI-X interrupts are not delivered.
1392 */
1393 bfa_ioc_msgflush(ioc);
1394 ioc->cbfn->reset_cbfn(ioc->bfa);
1395 bfa_fsm_send_event(&ioc->iocpf, IOCPF_E_FWREADY);
1396 return;
1397 }
1398
1399 /**
1400 * Initialize the h/w for any other states.
1401 */
1402 bfa_ioc_boot(ioc, BFI_BOOT_TYPE_NORMAL, boot_env);
1403 }
1404
1405 void
1406 bfa_nw_ioc_timeout(void *ioc_arg)
1407 {
1408 struct bfa_ioc *ioc = (struct bfa_ioc *) ioc_arg;
1409
1410 bfa_fsm_send_event(ioc, IOC_E_TIMEOUT);
1411 }
1412
1413 static void
1414 bfa_ioc_mbox_send(struct bfa_ioc *ioc, void *ioc_msg, int len)
1415 {
1416 u32 *msgp = (u32 *) ioc_msg;
1417 u32 i;
1418
1419 BUG_ON(!(len <= BFI_IOC_MSGLEN_MAX));
1420
1421 /*
1422 * first write msg to mailbox registers
1423 */
1424 for (i = 0; i < len / sizeof(u32); i++)
1425 writel(cpu_to_le32(msgp[i]),
1426 ioc->ioc_regs.hfn_mbox + i * sizeof(u32));
1427
1428 for (; i < BFI_IOC_MSGLEN_MAX / sizeof(u32); i++)
1429 writel(0, ioc->ioc_regs.hfn_mbox + i * sizeof(u32));
1430
1431 /*
1432 * write 1 to mailbox CMD to trigger LPU event
1433 */
1434 writel(1, ioc->ioc_regs.hfn_mbox_cmd);
1435 (void) readl(ioc->ioc_regs.hfn_mbox_cmd);
1436 }
1437
1438 static void
1439 bfa_ioc_send_enable(struct bfa_ioc *ioc)
1440 {
1441 struct bfi_ioc_ctrl_req enable_req;
1442 struct timeval tv;
1443
1444 bfi_h2i_set(enable_req.mh, BFI_MC_IOC, BFI_IOC_H2I_ENABLE_REQ,
1445 bfa_ioc_portid(ioc));
1446 enable_req.ioc_class = ioc->ioc_mc;
1447 do_gettimeofday(&tv);
1448 enable_req.tv_sec = ntohl(tv.tv_sec);
1449 bfa_ioc_mbox_send(ioc, &enable_req, sizeof(struct bfi_ioc_ctrl_req));
1450 }
1451
1452 static void
1453 bfa_ioc_send_disable(struct bfa_ioc *ioc)
1454 {
1455 struct bfi_ioc_ctrl_req disable_req;
1456
1457 bfi_h2i_set(disable_req.mh, BFI_MC_IOC, BFI_IOC_H2I_DISABLE_REQ,
1458 bfa_ioc_portid(ioc));
1459 bfa_ioc_mbox_send(ioc, &disable_req, sizeof(struct bfi_ioc_ctrl_req));
1460 }
1461
1462 static void
1463 bfa_ioc_send_getattr(struct bfa_ioc *ioc)
1464 {
1465 struct bfi_ioc_getattr_req attr_req;
1466
1467 bfi_h2i_set(attr_req.mh, BFI_MC_IOC, BFI_IOC_H2I_GETATTR_REQ,
1468 bfa_ioc_portid(ioc));
1469 bfa_dma_be_addr_set(attr_req.attr_addr, ioc->attr_dma.pa);
1470 bfa_ioc_mbox_send(ioc, &attr_req, sizeof(attr_req));
1471 }
1472
1473 void
1474 bfa_nw_ioc_hb_check(void *cbarg)
1475 {
1476 struct bfa_ioc *ioc = cbarg;
1477 u32 hb_count;
1478
1479 hb_count = readl(ioc->ioc_regs.heartbeat);
1480 if (ioc->hb_count == hb_count) {
1481 bfa_ioc_recover(ioc);
1482 return;
1483 } else {
1484 ioc->hb_count = hb_count;
1485 }
1486
1487 bfa_ioc_mbox_poll(ioc);
1488 mod_timer(&ioc->hb_timer, jiffies +
1489 msecs_to_jiffies(BFA_IOC_HB_TOV));
1490 }
1491
1492 static void
1493 bfa_ioc_hb_monitor(struct bfa_ioc *ioc)
1494 {
1495 ioc->hb_count = readl(ioc->ioc_regs.heartbeat);
1496 mod_timer(&ioc->hb_timer, jiffies +
1497 msecs_to_jiffies(BFA_IOC_HB_TOV));
1498 }
1499
1500 static void
1501 bfa_ioc_hb_stop(struct bfa_ioc *ioc)
1502 {
1503 del_timer(&ioc->hb_timer);
1504 }
1505
1506 /**
1507 * @brief
1508 * Initiate a full firmware download.
1509 */
1510 static void
1511 bfa_ioc_download_fw(struct bfa_ioc *ioc, u32 boot_type,
1512 u32 boot_env)
1513 {
1514 u32 *fwimg;
1515 u32 pgnum;
1516 u32 loff = 0;
1517 u32 chunkno = 0;
1518 u32 i;
1519
1520 /**
1521 * Initialize LMEM first before code download
1522 */
1523 bfa_ioc_lmem_init(ioc);
1524
1525 fwimg = bfa_cb_image_get_chunk(BFA_IOC_FWIMG_TYPE(ioc), chunkno);
1526
1527 pgnum = bfa_ioc_smem_pgnum(ioc, loff);
1528
1529 writel(pgnum, ioc->ioc_regs.host_page_num_fn);
1530
1531 for (i = 0; i < bfa_cb_image_get_size(BFA_IOC_FWIMG_TYPE(ioc)); i++) {
1532 if (BFA_IOC_FLASH_CHUNK_NO(i) != chunkno) {
1533 chunkno = BFA_IOC_FLASH_CHUNK_NO(i);
1534 fwimg = bfa_cb_image_get_chunk(BFA_IOC_FWIMG_TYPE(ioc),
1535 BFA_IOC_FLASH_CHUNK_ADDR(chunkno));
1536 }
1537
1538 /**
1539 * write smem
1540 */
1541 writel((swab32(fwimg[BFA_IOC_FLASH_OFFSET_IN_CHUNK(i)])),
1542 ((ioc->ioc_regs.smem_page_start) + (loff)));
1543
1544 loff += sizeof(u32);
1545
1546 /**
1547 * handle page offset wrap around
1548 */
1549 loff = PSS_SMEM_PGOFF(loff);
1550 if (loff == 0) {
1551 pgnum++;
1552 writel(pgnum,
1553 ioc->ioc_regs.host_page_num_fn);
1554 }
1555 }
1556
1557 writel(bfa_ioc_smem_pgnum(ioc, 0),
1558 ioc->ioc_regs.host_page_num_fn);
1559
1560 /*
1561 * Set boot type and boot param at the end.
1562 */
1563 writel(boot_type, ((ioc->ioc_regs.smem_page_start)
1564 + (BFI_BOOT_TYPE_OFF)));
1565 writel(boot_env, ((ioc->ioc_regs.smem_page_start)
1566 + (BFI_BOOT_LOADER_OFF)));
1567 }
1568
1569 static void
1570 bfa_ioc_reset(struct bfa_ioc *ioc, bool force)
1571 {
1572 bfa_ioc_hwinit(ioc, force);
1573 }
1574
1575 /**
1576 * @brief
1577 * Update BFA configuration from firmware configuration.
1578 */
1579 static void
1580 bfa_ioc_getattr_reply(struct bfa_ioc *ioc)
1581 {
1582 struct bfi_ioc_attr *attr = ioc->attr;
1583
1584 attr->adapter_prop = ntohl(attr->adapter_prop);
1585 attr->card_type = ntohl(attr->card_type);
1586 attr->maxfrsize = ntohs(attr->maxfrsize);
1587
1588 bfa_fsm_send_event(ioc, IOC_E_FWRSP_GETATTR);
1589 }
1590
1591 /**
1592 * Attach time initialization of mbox logic.
1593 */
1594 static void
1595 bfa_ioc_mbox_attach(struct bfa_ioc *ioc)
1596 {
1597 struct bfa_ioc_mbox_mod *mod = &ioc->mbox_mod;
1598 int mc;
1599
1600 INIT_LIST_HEAD(&mod->cmd_q);
1601 for (mc = 0; mc < BFI_MC_MAX; mc++) {
1602 mod->mbhdlr[mc].cbfn = NULL;
1603 mod->mbhdlr[mc].cbarg = ioc->bfa;
1604 }
1605 }
1606
1607 /**
1608 * Mbox poll timer -- restarts any pending mailbox requests.
1609 */
1610 static void
1611 bfa_ioc_mbox_poll(struct bfa_ioc *ioc)
1612 {
1613 struct bfa_ioc_mbox_mod *mod = &ioc->mbox_mod;
1614 struct bfa_mbox_cmd *cmd;
1615 u32 stat;
1616
1617 /**
1618 * If no command pending, do nothing
1619 */
1620 if (list_empty(&mod->cmd_q))
1621 return;
1622
1623 /**
1624 * If previous command is not yet fetched by firmware, do nothing
1625 */
1626 stat = readl(ioc->ioc_regs.hfn_mbox_cmd);
1627 if (stat)
1628 return;
1629
1630 /**
1631 * Enqueue command to firmware.
1632 */
1633 bfa_q_deq(&mod->cmd_q, &cmd);
1634 bfa_ioc_mbox_send(ioc, cmd->msg, sizeof(cmd->msg));
1635 }
1636
1637 /**
1638 * Cleanup any pending requests.
1639 */
1640 static void
1641 bfa_ioc_mbox_hbfail(struct bfa_ioc *ioc)
1642 {
1643 struct bfa_ioc_mbox_mod *mod = &ioc->mbox_mod;
1644 struct bfa_mbox_cmd *cmd;
1645
1646 while (!list_empty(&mod->cmd_q))
1647 bfa_q_deq(&mod->cmd_q, &cmd);
1648 }
1649
1650 static void
1651 bfa_ioc_fail_notify(struct bfa_ioc *ioc)
1652 {
1653 struct list_head *qe;
1654 struct bfa_ioc_hbfail_notify *notify;
1655
1656 /**
1657 * Notify driver and common modules registered for notification.
1658 */
1659 ioc->cbfn->hbfail_cbfn(ioc->bfa);
1660 list_for_each(qe, &ioc->hb_notify_q) {
1661 notify = (struct bfa_ioc_hbfail_notify *) qe;
1662 notify->cbfn(notify->cbarg);
1663 }
1664 }
1665
1666 static void
1667 bfa_ioc_pf_enabled(struct bfa_ioc *ioc)
1668 {
1669 bfa_fsm_send_event(ioc, IOC_E_ENABLED);
1670 }
1671
1672 static void
1673 bfa_ioc_pf_disabled(struct bfa_ioc *ioc)
1674 {
1675 bfa_fsm_send_event(ioc, IOC_E_DISABLED);
1676 }
1677
1678 static void
1679 bfa_ioc_pf_initfailed(struct bfa_ioc *ioc)
1680 {
1681 bfa_fsm_send_event(ioc, IOC_E_INITFAILED);
1682 }
1683
1684 static void
1685 bfa_ioc_pf_failed(struct bfa_ioc *ioc)
1686 {
1687 bfa_fsm_send_event(ioc, IOC_E_PFAILED);
1688 }
1689
1690 static void
1691 bfa_ioc_pf_fwmismatch(struct bfa_ioc *ioc)
1692 {
1693 /**
1694 * Provide enable completion callback and AEN notification.
1695 */
1696 ioc->cbfn->enable_cbfn(ioc->bfa, BFA_STATUS_IOC_FAILURE);
1697 }
1698
1699 /**
1700 * IOC public
1701 */
1702 static enum bfa_status
1703 bfa_ioc_pll_init(struct bfa_ioc *ioc)
1704 {
1705 /*
1706 * Hold semaphore so that nobody can access the chip during init.
1707 */
1708 bfa_nw_ioc_sem_get(ioc->ioc_regs.ioc_init_sem_reg);
1709
1710 bfa_ioc_pll_init_asic(ioc);
1711
1712 ioc->pllinit = true;
1713 /*
1714 * release semaphore.
1715 */
1716 bfa_nw_ioc_sem_release(ioc->ioc_regs.ioc_init_sem_reg);
1717
1718 return BFA_STATUS_OK;
1719 }
1720
1721 /**
1722 * Interface used by diag module to do firmware boot with memory test
1723 * as the entry vector.
1724 */
1725 static void
1726 bfa_ioc_boot(struct bfa_ioc *ioc, u32 boot_type, u32 boot_env)
1727 {
1728 void __iomem *rb;
1729
1730 bfa_ioc_stats(ioc, ioc_boots);
1731
1732 if (bfa_ioc_pll_init(ioc) != BFA_STATUS_OK)
1733 return;
1734
1735 /**
1736 * Initialize IOC state of all functions on a chip reset.
1737 */
1738 rb = ioc->pcidev.pci_bar_kva;
1739 if (boot_type == BFI_BOOT_TYPE_MEMTEST) {
1740 writel(BFI_IOC_MEMTEST, (rb + BFA_IOC0_STATE_REG));
1741 writel(BFI_IOC_MEMTEST, (rb + BFA_IOC1_STATE_REG));
1742 } else {
1743 writel(BFI_IOC_INITING, (rb + BFA_IOC0_STATE_REG));
1744 writel(BFI_IOC_INITING, (rb + BFA_IOC1_STATE_REG));
1745 }
1746
1747 bfa_ioc_msgflush(ioc);
1748 bfa_ioc_download_fw(ioc, boot_type, boot_env);
1749
1750 /**
1751 * Enable interrupts just before starting LPU
1752 */
1753 ioc->cbfn->reset_cbfn(ioc->bfa);
1754 bfa_ioc_lpu_start(ioc);
1755 }
1756
1757 /**
1758 * Enable/disable IOC failure auto recovery.
1759 */
1760 void
1761 bfa_nw_ioc_auto_recover(bool auto_recover)
1762 {
1763 bfa_nw_auto_recover = auto_recover;
1764 }
1765
1766 static void
1767 bfa_ioc_msgget(struct bfa_ioc *ioc, void *mbmsg)
1768 {
1769 u32 *msgp = mbmsg;
1770 u32 r32;
1771 int i;
1772
1773 /**
1774 * read the MBOX msg
1775 */
1776 for (i = 0; i < (sizeof(union bfi_ioc_i2h_msg_u) / sizeof(u32));
1777 i++) {
1778 r32 = readl(ioc->ioc_regs.lpu_mbox +
1779 i * sizeof(u32));
1780 msgp[i] = htonl(r32);
1781 }
1782
1783 /**
1784 * turn off mailbox interrupt by clearing mailbox status
1785 */
1786 writel(1, ioc->ioc_regs.lpu_mbox_cmd);
1787 readl(ioc->ioc_regs.lpu_mbox_cmd);
1788 }
1789
1790 static void
1791 bfa_ioc_isr(struct bfa_ioc *ioc, struct bfi_mbmsg *m)
1792 {
1793 union bfi_ioc_i2h_msg_u *msg;
1794 struct bfa_iocpf *iocpf = &ioc->iocpf;
1795
1796 msg = (union bfi_ioc_i2h_msg_u *) m;
1797
1798 bfa_ioc_stats(ioc, ioc_isrs);
1799
1800 switch (msg->mh.msg_id) {
1801 case BFI_IOC_I2H_HBEAT:
1802 break;
1803
1804 case BFI_IOC_I2H_READY_EVENT:
1805 bfa_fsm_send_event(iocpf, IOCPF_E_FWREADY);
1806 break;
1807
1808 case BFI_IOC_I2H_ENABLE_REPLY:
1809 bfa_fsm_send_event(iocpf, IOCPF_E_FWRSP_ENABLE);
1810 break;
1811
1812 case BFI_IOC_I2H_DISABLE_REPLY:
1813 bfa_fsm_send_event(iocpf, IOCPF_E_FWRSP_DISABLE);
1814 break;
1815
1816 case BFI_IOC_I2H_GETATTR_REPLY:
1817 bfa_ioc_getattr_reply(ioc);
1818 break;
1819
1820 default:
1821 BUG_ON(1);
1822 }
1823 }
1824
1825 /**
1826 * IOC attach time initialization and setup.
1827 *
1828 * @param[in] ioc memory for IOC
1829 * @param[in] bfa driver instance structure
1830 */
1831 void
1832 bfa_nw_ioc_attach(struct bfa_ioc *ioc, void *bfa, struct bfa_ioc_cbfn *cbfn)
1833 {
1834 ioc->bfa = bfa;
1835 ioc->cbfn = cbfn;
1836 ioc->fcmode = false;
1837 ioc->pllinit = false;
1838 ioc->dbg_fwsave_once = true;
1839 ioc->iocpf.ioc = ioc;
1840
1841 bfa_ioc_mbox_attach(ioc);
1842 INIT_LIST_HEAD(&ioc->hb_notify_q);
1843
1844 bfa_fsm_set_state(ioc, bfa_ioc_sm_uninit);
1845 bfa_fsm_send_event(ioc, IOC_E_RESET);
1846 }
1847
1848 /**
1849 * Driver detach time IOC cleanup.
1850 */
1851 void
1852 bfa_nw_ioc_detach(struct bfa_ioc *ioc)
1853 {
1854 bfa_fsm_send_event(ioc, IOC_E_DETACH);
1855 }
1856
1857 /**
1858 * Setup IOC PCI properties.
1859 *
1860 * @param[in] pcidev PCI device information for this IOC
1861 */
1862 void
1863 bfa_nw_ioc_pci_init(struct bfa_ioc *ioc, struct bfa_pcidev *pcidev,
1864 enum bfi_mclass mc)
1865 {
1866 ioc->ioc_mc = mc;
1867 ioc->pcidev = *pcidev;
1868 ioc->ctdev = bfa_asic_id_ct(ioc->pcidev.device_id);
1869 ioc->cna = ioc->ctdev && !ioc->fcmode;
1870
1871 bfa_nw_ioc_set_ct_hwif(ioc);
1872
1873 bfa_ioc_map_port(ioc);
1874 bfa_ioc_reg_init(ioc);
1875 }
1876
1877 /**
1878 * Initialize IOC dma memory
1879 *
1880 * @param[in] dm_kva kernel virtual address of IOC dma memory
1881 * @param[in] dm_pa physical address of IOC dma memory
1882 */
1883 void
1884 bfa_nw_ioc_mem_claim(struct bfa_ioc *ioc, u8 *dm_kva, u64 dm_pa)
1885 {
1886 /**
1887 * dma memory for firmware attribute
1888 */
1889 ioc->attr_dma.kva = dm_kva;
1890 ioc->attr_dma.pa = dm_pa;
1891 ioc->attr = (struct bfi_ioc_attr *) dm_kva;
1892 }
1893
1894 /**
1895 * Return size of dma memory required.
1896 */
1897 u32
1898 bfa_nw_ioc_meminfo(void)
1899 {
1900 return roundup(sizeof(struct bfi_ioc_attr), BFA_DMA_ALIGN_SZ);
1901 }
1902
1903 void
1904 bfa_nw_ioc_enable(struct bfa_ioc *ioc)
1905 {
1906 bfa_ioc_stats(ioc, ioc_enables);
1907 ioc->dbg_fwsave_once = true;
1908
1909 bfa_fsm_send_event(ioc, IOC_E_ENABLE);
1910 }
1911
1912 void
1913 bfa_nw_ioc_disable(struct bfa_ioc *ioc)
1914 {
1915 bfa_ioc_stats(ioc, ioc_disables);
1916 bfa_fsm_send_event(ioc, IOC_E_DISABLE);
1917 }
1918
1919 static u32
1920 bfa_ioc_smem_pgnum(struct bfa_ioc *ioc, u32 fmaddr)
1921 {
1922 return PSS_SMEM_PGNUM(ioc->ioc_regs.smem_pg0, fmaddr);
1923 }
1924
1925 /**
1926 * Register mailbox message handler function, to be called by common modules
1927 */
1928 void
1929 bfa_nw_ioc_mbox_regisr(struct bfa_ioc *ioc, enum bfi_mclass mc,
1930 bfa_ioc_mbox_mcfunc_t cbfn, void *cbarg)
1931 {
1932 struct bfa_ioc_mbox_mod *mod = &ioc->mbox_mod;
1933
1934 mod->mbhdlr[mc].cbfn = cbfn;
1935 mod->mbhdlr[mc].cbarg = cbarg;
1936 }
1937
1938 /**
1939 * Queue a mailbox command request to firmware. Waits if mailbox is busy.
1940 * Responsibility of caller to serialize
1941 *
1942 * @param[in] ioc IOC instance
1943 * @param[i] cmd Mailbox command
1944 */
1945 void
1946 bfa_nw_ioc_mbox_queue(struct bfa_ioc *ioc, struct bfa_mbox_cmd *cmd)
1947 {
1948 struct bfa_ioc_mbox_mod *mod = &ioc->mbox_mod;
1949 u32 stat;
1950
1951 /**
1952 * If a previous command is pending, queue new command
1953 */
1954 if (!list_empty(&mod->cmd_q)) {
1955 list_add_tail(&cmd->qe, &mod->cmd_q);
1956 return;
1957 }
1958
1959 /**
1960 * If mailbox is busy, queue command for poll timer
1961 */
1962 stat = readl(ioc->ioc_regs.hfn_mbox_cmd);
1963 if (stat) {
1964 list_add_tail(&cmd->qe, &mod->cmd_q);
1965 return;
1966 }
1967
1968 /**
1969 * mailbox is free -- queue command to firmware
1970 */
1971 bfa_ioc_mbox_send(ioc, cmd->msg, sizeof(cmd->msg));
1972 }
1973
1974 /**
1975 * Handle mailbox interrupts
1976 */
1977 void
1978 bfa_nw_ioc_mbox_isr(struct bfa_ioc *ioc)
1979 {
1980 struct bfa_ioc_mbox_mod *mod = &ioc->mbox_mod;
1981 struct bfi_mbmsg m;
1982 int mc;
1983
1984 bfa_ioc_msgget(ioc, &m);
1985
1986 /**
1987 * Treat IOC message class as special.
1988 */
1989 mc = m.mh.msg_class;
1990 if (mc == BFI_MC_IOC) {
1991 bfa_ioc_isr(ioc, &m);
1992 return;
1993 }
1994
1995 if ((mc >= BFI_MC_MAX) || (mod->mbhdlr[mc].cbfn == NULL))
1996 return;
1997
1998 mod->mbhdlr[mc].cbfn(mod->mbhdlr[mc].cbarg, &m);
1999 }
2000
2001 void
2002 bfa_nw_ioc_error_isr(struct bfa_ioc *ioc)
2003 {
2004 bfa_fsm_send_event(ioc, IOC_E_HWERROR);
2005 }
2006
2007 /**
2008 * Add to IOC heartbeat failure notification queue. To be used by common
2009 * modules such as cee, port, diag.
2010 */
2011 void
2012 bfa_nw_ioc_hbfail_register(struct bfa_ioc *ioc,
2013 struct bfa_ioc_hbfail_notify *notify)
2014 {
2015 list_add_tail(&notify->qe, &ioc->hb_notify_q);
2016 }
2017
2018 #define BFA_MFG_NAME "Brocade"
2019 static void
2020 bfa_ioc_get_adapter_attr(struct bfa_ioc *ioc,
2021 struct bfa_adapter_attr *ad_attr)
2022 {
2023 struct bfi_ioc_attr *ioc_attr;
2024
2025 ioc_attr = ioc->attr;
2026
2027 bfa_ioc_get_adapter_serial_num(ioc, ad_attr->serial_num);
2028 bfa_ioc_get_adapter_fw_ver(ioc, ad_attr->fw_ver);
2029 bfa_ioc_get_adapter_optrom_ver(ioc, ad_attr->optrom_ver);
2030 bfa_ioc_get_adapter_manufacturer(ioc, ad_attr->manufacturer);
2031 memcpy(&ad_attr->vpd, &ioc_attr->vpd,
2032 sizeof(struct bfa_mfg_vpd));
2033
2034 ad_attr->nports = bfa_ioc_get_nports(ioc);
2035 ad_attr->max_speed = bfa_ioc_speed_sup(ioc);
2036
2037 bfa_ioc_get_adapter_model(ioc, ad_attr->model);
2038 /* For now, model descr uses same model string */
2039 bfa_ioc_get_adapter_model(ioc, ad_attr->model_descr);
2040
2041 ad_attr->card_type = ioc_attr->card_type;
2042 ad_attr->is_mezz = bfa_mfg_is_mezz(ioc_attr->card_type);
2043
2044 if (BFI_ADAPTER_IS_SPECIAL(ioc_attr->adapter_prop))
2045 ad_attr->prototype = 1;
2046 else
2047 ad_attr->prototype = 0;
2048
2049 ad_attr->pwwn = bfa_ioc_get_pwwn(ioc);
2050 ad_attr->mac = bfa_nw_ioc_get_mac(ioc);
2051
2052 ad_attr->pcie_gen = ioc_attr->pcie_gen;
2053 ad_attr->pcie_lanes = ioc_attr->pcie_lanes;
2054 ad_attr->pcie_lanes_orig = ioc_attr->pcie_lanes_orig;
2055 ad_attr->asic_rev = ioc_attr->asic_rev;
2056
2057 bfa_ioc_get_pci_chip_rev(ioc, ad_attr->hw_ver);
2058
2059 ad_attr->cna_capable = ioc->cna;
2060 ad_attr->trunk_capable = (ad_attr->nports > 1) && !ioc->cna;
2061 }
2062
2063 static enum bfa_ioc_type
2064 bfa_ioc_get_type(struct bfa_ioc *ioc)
2065 {
2066 if (!ioc->ctdev || ioc->fcmode)
2067 return BFA_IOC_TYPE_FC;
2068 else if (ioc->ioc_mc == BFI_MC_IOCFC)
2069 return BFA_IOC_TYPE_FCoE;
2070 else if (ioc->ioc_mc == BFI_MC_LL)
2071 return BFA_IOC_TYPE_LL;
2072 else {
2073 BUG_ON(!(ioc->ioc_mc == BFI_MC_LL));
2074 return BFA_IOC_TYPE_LL;
2075 }
2076 }
2077
2078 static void
2079 bfa_ioc_get_adapter_serial_num(struct bfa_ioc *ioc, char *serial_num)
2080 {
2081 memset(serial_num, 0, BFA_ADAPTER_SERIAL_NUM_LEN);
2082 memcpy(serial_num,
2083 (void *)ioc->attr->brcd_serialnum,
2084 BFA_ADAPTER_SERIAL_NUM_LEN);
2085 }
2086
2087 static void
2088 bfa_ioc_get_adapter_fw_ver(struct bfa_ioc *ioc, char *fw_ver)
2089 {
2090 memset(fw_ver, 0, BFA_VERSION_LEN);
2091 memcpy(fw_ver, ioc->attr->fw_version, BFA_VERSION_LEN);
2092 }
2093
2094 static void
2095 bfa_ioc_get_pci_chip_rev(struct bfa_ioc *ioc, char *chip_rev)
2096 {
2097 BUG_ON(!(chip_rev));
2098
2099 memset(chip_rev, 0, BFA_IOC_CHIP_REV_LEN);
2100
2101 chip_rev[0] = 'R';
2102 chip_rev[1] = 'e';
2103 chip_rev[2] = 'v';
2104 chip_rev[3] = '-';
2105 chip_rev[4] = ioc->attr->asic_rev;
2106 chip_rev[5] = '\0';
2107 }
2108
2109 static void
2110 bfa_ioc_get_adapter_optrom_ver(struct bfa_ioc *ioc, char *optrom_ver)
2111 {
2112 memset(optrom_ver, 0, BFA_VERSION_LEN);
2113 memcpy(optrom_ver, ioc->attr->optrom_version,
2114 BFA_VERSION_LEN);
2115 }
2116
2117 static void
2118 bfa_ioc_get_adapter_manufacturer(struct bfa_ioc *ioc, char *manufacturer)
2119 {
2120 memset(manufacturer, 0, BFA_ADAPTER_MFG_NAME_LEN);
2121 memcpy(manufacturer, BFA_MFG_NAME, BFA_ADAPTER_MFG_NAME_LEN);
2122 }
2123
2124 static void
2125 bfa_ioc_get_adapter_model(struct bfa_ioc *ioc, char *model)
2126 {
2127 struct bfi_ioc_attr *ioc_attr;
2128
2129 BUG_ON(!(model));
2130 memset(model, 0, BFA_ADAPTER_MODEL_NAME_LEN);
2131
2132 ioc_attr = ioc->attr;
2133
2134 /**
2135 * model name
2136 */
2137 snprintf(model, BFA_ADAPTER_MODEL_NAME_LEN, "%s-%u",
2138 BFA_MFG_NAME, ioc_attr->card_type);
2139 }
2140
2141 static enum bfa_ioc_state
2142 bfa_ioc_get_state(struct bfa_ioc *ioc)
2143 {
2144 enum bfa_iocpf_state iocpf_st;
2145 enum bfa_ioc_state ioc_st = bfa_sm_to_state(ioc_sm_table, ioc->fsm);
2146
2147 if (ioc_st == BFA_IOC_ENABLING ||
2148 ioc_st == BFA_IOC_FAIL || ioc_st == BFA_IOC_INITFAIL) {
2149
2150 iocpf_st = bfa_sm_to_state(iocpf_sm_table, ioc->iocpf.fsm);
2151
2152 switch (iocpf_st) {
2153 case BFA_IOCPF_SEMWAIT:
2154 ioc_st = BFA_IOC_SEMWAIT;
2155 break;
2156
2157 case BFA_IOCPF_HWINIT:
2158 ioc_st = BFA_IOC_HWINIT;
2159 break;
2160
2161 case BFA_IOCPF_FWMISMATCH:
2162 ioc_st = BFA_IOC_FWMISMATCH;
2163 break;
2164
2165 case BFA_IOCPF_FAIL:
2166 ioc_st = BFA_IOC_FAIL;
2167 break;
2168
2169 case BFA_IOCPF_INITFAIL:
2170 ioc_st = BFA_IOC_INITFAIL;
2171 break;
2172
2173 default:
2174 break;
2175 }
2176 }
2177 return ioc_st;
2178 }
2179
2180 void
2181 bfa_nw_ioc_get_attr(struct bfa_ioc *ioc, struct bfa_ioc_attr *ioc_attr)
2182 {
2183 memset((void *)ioc_attr, 0, sizeof(struct bfa_ioc_attr));
2184
2185 ioc_attr->state = bfa_ioc_get_state(ioc);
2186 ioc_attr->port_id = ioc->port_id;
2187
2188 ioc_attr->ioc_type = bfa_ioc_get_type(ioc);
2189
2190 bfa_ioc_get_adapter_attr(ioc, &ioc_attr->adapter_attr);
2191
2192 ioc_attr->pci_attr.device_id = ioc->pcidev.device_id;
2193 ioc_attr->pci_attr.pcifn = ioc->pcidev.pci_func;
2194 bfa_ioc_get_pci_chip_rev(ioc, ioc_attr->pci_attr.chip_rev);
2195 }
2196
2197 /**
2198 * WWN public
2199 */
2200 static u64
2201 bfa_ioc_get_pwwn(struct bfa_ioc *ioc)
2202 {
2203 return ioc->attr->pwwn;
2204 }
2205
2206 mac_t
2207 bfa_nw_ioc_get_mac(struct bfa_ioc *ioc)
2208 {
2209 return ioc->attr->mac;
2210 }
2211
2212 /**
2213 * Firmware failure detected. Start recovery actions.
2214 */
2215 static void
2216 bfa_ioc_recover(struct bfa_ioc *ioc)
2217 {
2218 pr_crit("Heart Beat of IOC has failed\n");
2219 bfa_ioc_stats(ioc, ioc_hbfails);
2220 bfa_fsm_send_event(ioc, IOC_E_HBFAIL);
2221 }
2222
2223 static void
2224 bfa_ioc_check_attr_wwns(struct bfa_ioc *ioc)
2225 {
2226 if (bfa_ioc_get_type(ioc) == BFA_IOC_TYPE_LL)
2227 return;
2228 }
2229
2230 /**
2231 * @dg hal_iocpf_pvt BFA IOC PF private functions
2232 * @{
2233 */
2234
2235 static void
2236 bfa_iocpf_enable(struct bfa_ioc *ioc)
2237 {
2238 bfa_fsm_send_event(&ioc->iocpf, IOCPF_E_ENABLE);
2239 }
2240
2241 static void
2242 bfa_iocpf_disable(struct bfa_ioc *ioc)
2243 {
2244 bfa_fsm_send_event(&ioc->iocpf, IOCPF_E_DISABLE);
2245 }
2246
2247 static void
2248 bfa_iocpf_fail(struct bfa_ioc *ioc)
2249 {
2250 bfa_fsm_send_event(&ioc->iocpf, IOCPF_E_FAIL);
2251 }
2252
2253 static void
2254 bfa_iocpf_initfail(struct bfa_ioc *ioc)
2255 {
2256 bfa_fsm_send_event(&ioc->iocpf, IOCPF_E_INITFAIL);
2257 }
2258
2259 static void
2260 bfa_iocpf_getattrfail(struct bfa_ioc *ioc)
2261 {
2262 bfa_fsm_send_event(&ioc->iocpf, IOCPF_E_GETATTRFAIL);
2263 }
2264
2265 static void
2266 bfa_iocpf_stop(struct bfa_ioc *ioc)
2267 {
2268 bfa_fsm_send_event(&ioc->iocpf, IOCPF_E_STOP);
2269 }
2270
2271 void
2272 bfa_nw_iocpf_timeout(void *ioc_arg)
2273 {
2274 struct bfa_ioc *ioc = (struct bfa_ioc *) ioc_arg;
2275
2276 bfa_fsm_send_event(&ioc->iocpf, IOCPF_E_TIMEOUT);
2277 }
2278
2279 void
2280 bfa_nw_iocpf_sem_timeout(void *ioc_arg)
2281 {
2282 struct bfa_ioc *ioc = (struct bfa_ioc *) ioc_arg;
2283
2284 bfa_ioc_hw_sem_get(ioc);
2285 }
Linux with added FPC-III support