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proc: use seq_puts()/seq_putc() where possible
[linux-2.6/next.git] / drivers / net / bna / bfa_ioc.c
blob34933cb9569ffc070692d8031a8c50eb32b07111
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_join(__ioc) \
42 ((__ioc)->ioc_hwif->ioc_sync_join(__ioc))
43 #define bfa_ioc_sync_leave(__ioc) \
44 ((__ioc)->ioc_hwif->ioc_sync_leave(__ioc))
45 #define bfa_ioc_sync_ack(__ioc) \
46 ((__ioc)->ioc_hwif->ioc_sync_ack(__ioc))
47 #define bfa_ioc_sync_complete(__ioc) \
48 ((__ioc)->ioc_hwif->ioc_sync_complete(__ioc))
49
50 #define bfa_ioc_mbox_cmd_pending(__ioc) \
51 (!list_empty(&((__ioc)->mbox_mod.cmd_q)) || \
52 readl((__ioc)->ioc_regs.hfn_mbox_cmd))
53
54 static bool bfa_nw_auto_recover = true;
55
56 /*
57 * forward declarations
58 */
59 static void bfa_ioc_hw_sem_get(struct bfa_ioc *ioc);
60 static void bfa_ioc_hw_sem_get_cancel(struct bfa_ioc *ioc);
61 static void bfa_ioc_hwinit(struct bfa_ioc *ioc, bool force);
62 static void bfa_ioc_send_enable(struct bfa_ioc *ioc);
63 static void bfa_ioc_send_disable(struct bfa_ioc *ioc);
64 static void bfa_ioc_send_getattr(struct bfa_ioc *ioc);
65 static void bfa_ioc_hb_monitor(struct bfa_ioc *ioc);
66 static void bfa_ioc_hb_stop(struct bfa_ioc *ioc);
67 static void bfa_ioc_reset(struct bfa_ioc *ioc, bool force);
68 static void bfa_ioc_mbox_poll(struct bfa_ioc *ioc);
69 static void bfa_ioc_mbox_hbfail(struct bfa_ioc *ioc);
70 static void bfa_ioc_recover(struct bfa_ioc *ioc);
71 static void bfa_ioc_check_attr_wwns(struct bfa_ioc *ioc);
72 static void bfa_ioc_disable_comp(struct bfa_ioc *ioc);
73 static void bfa_ioc_lpu_stop(struct bfa_ioc *ioc);
74 static void bfa_ioc_fail_notify(struct bfa_ioc *ioc);
75 static void bfa_ioc_pf_enabled(struct bfa_ioc *ioc);
76 static void bfa_ioc_pf_disabled(struct bfa_ioc *ioc);
77 static void bfa_ioc_pf_initfailed(struct bfa_ioc *ioc);
78 static void bfa_ioc_pf_failed(struct bfa_ioc *ioc);
79 static void bfa_ioc_pf_fwmismatch(struct bfa_ioc *ioc);
80 static void bfa_ioc_boot(struct bfa_ioc *ioc, u32 boot_type,
81 u32 boot_param);
82 static u32 bfa_ioc_smem_pgnum(struct bfa_ioc *ioc, u32 fmaddr);
83 static u32 bfa_ioc_smem_pgoff(struct bfa_ioc *ioc, u32 fmaddr);
84 static void bfa_ioc_get_adapter_serial_num(struct bfa_ioc *ioc,
85 char *serial_num);
86 static void bfa_ioc_get_adapter_fw_ver(struct bfa_ioc *ioc,
87 char *fw_ver);
88 static void bfa_ioc_get_pci_chip_rev(struct bfa_ioc *ioc,
89 char *chip_rev);
90 static void bfa_ioc_get_adapter_optrom_ver(struct bfa_ioc *ioc,
91 char *optrom_ver);
92 static void bfa_ioc_get_adapter_manufacturer(struct bfa_ioc *ioc,
93 char *manufacturer);
94 static void bfa_ioc_get_adapter_model(struct bfa_ioc *ioc, char *model);
95 static u64 bfa_ioc_get_pwwn(struct bfa_ioc *ioc);
96
97 /**
98 * IOC state machine definitions/declarations
99 */
100 enum ioc_event {
101 IOC_E_RESET = 1, /*!< IOC reset request */
102 IOC_E_ENABLE = 2, /*!< IOC enable request */
103 IOC_E_DISABLE = 3, /*!< IOC disable request */
104 IOC_E_DETACH = 4, /*!< driver detach cleanup */
105 IOC_E_ENABLED = 5, /*!< f/w enabled */
106 IOC_E_FWRSP_GETATTR = 6, /*!< IOC get attribute response */
107 IOC_E_DISABLED = 7, /*!< f/w disabled */
108 IOC_E_INITFAILED = 8, /*!< failure notice by iocpf sm */
109 IOC_E_PFAILED = 9, /*!< failure notice by iocpf sm */
110 IOC_E_HBFAIL = 10, /*!< heartbeat failure */
111 IOC_E_HWERROR = 11, /*!< hardware error interrupt */
112 IOC_E_TIMEOUT = 12, /*!< timeout */
113 };
114
115 bfa_fsm_state_decl(bfa_ioc, uninit, struct bfa_ioc, enum ioc_event);
116 bfa_fsm_state_decl(bfa_ioc, reset, struct bfa_ioc, enum ioc_event);
117 bfa_fsm_state_decl(bfa_ioc, enabling, struct bfa_ioc, enum ioc_event);
118 bfa_fsm_state_decl(bfa_ioc, getattr, struct bfa_ioc, enum ioc_event);
119 bfa_fsm_state_decl(bfa_ioc, op, struct bfa_ioc, enum ioc_event);
120 bfa_fsm_state_decl(bfa_ioc, fail_retry, struct bfa_ioc, enum ioc_event);
121 bfa_fsm_state_decl(bfa_ioc, fail, struct bfa_ioc, enum ioc_event);
122 bfa_fsm_state_decl(bfa_ioc, disabling, struct bfa_ioc, enum ioc_event);
123 bfa_fsm_state_decl(bfa_ioc, disabled, struct bfa_ioc, enum ioc_event);
124
125 static struct bfa_sm_table ioc_sm_table[] = {
126 {BFA_SM(bfa_ioc_sm_uninit), BFA_IOC_UNINIT},
127 {BFA_SM(bfa_ioc_sm_reset), BFA_IOC_RESET},
128 {BFA_SM(bfa_ioc_sm_enabling), BFA_IOC_ENABLING},
129 {BFA_SM(bfa_ioc_sm_getattr), BFA_IOC_GETATTR},
130 {BFA_SM(bfa_ioc_sm_op), BFA_IOC_OPERATIONAL},
131 {BFA_SM(bfa_ioc_sm_fail_retry), BFA_IOC_INITFAIL},
132 {BFA_SM(bfa_ioc_sm_fail), BFA_IOC_FAIL},
133 {BFA_SM(bfa_ioc_sm_disabling), BFA_IOC_DISABLING},
134 {BFA_SM(bfa_ioc_sm_disabled), BFA_IOC_DISABLED},
135 };
136
137 /**
138 * IOCPF state machine definitions/declarations
139 */
140
141 /*
142 * Forward declareations for iocpf state machine
143 */
144 static void bfa_iocpf_enable(struct bfa_ioc *ioc);
145 static void bfa_iocpf_disable(struct bfa_ioc *ioc);
146 static void bfa_iocpf_fail(struct bfa_ioc *ioc);
147 static void bfa_iocpf_initfail(struct bfa_ioc *ioc);
148 static void bfa_iocpf_getattrfail(struct bfa_ioc *ioc);
149 static void bfa_iocpf_stop(struct bfa_ioc *ioc);
150
151 /**
152 * IOCPF state machine events
153 */
154 enum iocpf_event {
155 IOCPF_E_ENABLE = 1, /*!< IOCPF enable request */
156 IOCPF_E_DISABLE = 2, /*!< IOCPF disable request */
157 IOCPF_E_STOP = 3, /*!< stop on driver detach */
158 IOCPF_E_FWREADY = 4, /*!< f/w initialization done */
159 IOCPF_E_FWRSP_ENABLE = 5, /*!< enable f/w response */
160 IOCPF_E_FWRSP_DISABLE = 6, /*!< disable f/w response */
161 IOCPF_E_FAIL = 7, /*!< failure notice by ioc sm */
162 IOCPF_E_INITFAIL = 8, /*!< init fail notice by ioc sm */
163 IOCPF_E_GETATTRFAIL = 9, /*!< init fail notice by ioc sm */
164 IOCPF_E_SEMLOCKED = 10, /*!< h/w semaphore is locked */
165 IOCPF_E_TIMEOUT = 11, /*!< f/w response timeout */
166 };
167
168 /**
169 * IOCPF states
170 */
171 enum bfa_iocpf_state {
172 BFA_IOCPF_RESET = 1, /*!< IOC is in reset state */
173 BFA_IOCPF_SEMWAIT = 2, /*!< Waiting for IOC h/w semaphore */
174 BFA_IOCPF_HWINIT = 3, /*!< IOC h/w is being initialized */
175 BFA_IOCPF_READY = 4, /*!< IOCPF is initialized */
176 BFA_IOCPF_INITFAIL = 5, /*!< IOCPF failed */
177 BFA_IOCPF_FAIL = 6, /*!< IOCPF failed */
178 BFA_IOCPF_DISABLING = 7, /*!< IOCPF is being disabled */
179 BFA_IOCPF_DISABLED = 8, /*!< IOCPF is disabled */
180 BFA_IOCPF_FWMISMATCH = 9, /*!< IOC f/w different from drivers */
181 };
182
183 bfa_fsm_state_decl(bfa_iocpf, reset, struct bfa_iocpf, enum iocpf_event);
184 bfa_fsm_state_decl(bfa_iocpf, fwcheck, struct bfa_iocpf, enum iocpf_event);
185 bfa_fsm_state_decl(bfa_iocpf, mismatch, struct bfa_iocpf, enum iocpf_event);
186 bfa_fsm_state_decl(bfa_iocpf, semwait, struct bfa_iocpf, enum iocpf_event);
187 bfa_fsm_state_decl(bfa_iocpf, hwinit, struct bfa_iocpf, enum iocpf_event);
188 bfa_fsm_state_decl(bfa_iocpf, enabling, struct bfa_iocpf, enum iocpf_event);
189 bfa_fsm_state_decl(bfa_iocpf, ready, struct bfa_iocpf, enum iocpf_event);
190 bfa_fsm_state_decl(bfa_iocpf, initfail_sync, struct bfa_iocpf,
191 enum iocpf_event);
192 bfa_fsm_state_decl(bfa_iocpf, initfail, struct bfa_iocpf, enum iocpf_event);
193 bfa_fsm_state_decl(bfa_iocpf, fail_sync, struct bfa_iocpf, enum iocpf_event);
194 bfa_fsm_state_decl(bfa_iocpf, fail, struct bfa_iocpf, enum iocpf_event);
195 bfa_fsm_state_decl(bfa_iocpf, disabling, struct bfa_iocpf, enum iocpf_event);
196 bfa_fsm_state_decl(bfa_iocpf, disabling_sync, struct bfa_iocpf,
197 enum iocpf_event);
198 bfa_fsm_state_decl(bfa_iocpf, disabled, struct bfa_iocpf, enum iocpf_event);
199
200 static struct bfa_sm_table iocpf_sm_table[] = {
201 {BFA_SM(bfa_iocpf_sm_reset), BFA_IOCPF_RESET},
202 {BFA_SM(bfa_iocpf_sm_fwcheck), BFA_IOCPF_FWMISMATCH},
203 {BFA_SM(bfa_iocpf_sm_mismatch), BFA_IOCPF_FWMISMATCH},
204 {BFA_SM(bfa_iocpf_sm_semwait), BFA_IOCPF_SEMWAIT},
205 {BFA_SM(bfa_iocpf_sm_hwinit), BFA_IOCPF_HWINIT},
206 {BFA_SM(bfa_iocpf_sm_enabling), BFA_IOCPF_HWINIT},
207 {BFA_SM(bfa_iocpf_sm_ready), BFA_IOCPF_READY},
208 {BFA_SM(bfa_iocpf_sm_initfail_sync), BFA_IOCPF_INITFAIL},
209 {BFA_SM(bfa_iocpf_sm_initfail), BFA_IOCPF_INITFAIL},
210 {BFA_SM(bfa_iocpf_sm_fail_sync), BFA_IOCPF_FAIL},
211 {BFA_SM(bfa_iocpf_sm_fail), BFA_IOCPF_FAIL},
212 {BFA_SM(bfa_iocpf_sm_disabling), BFA_IOCPF_DISABLING},
213 {BFA_SM(bfa_iocpf_sm_disabling_sync), BFA_IOCPF_DISABLING},
214 {BFA_SM(bfa_iocpf_sm_disabled), BFA_IOCPF_DISABLED},
215 };
216
217 /**
218 * IOC State Machine
219 */
220
221 /**
222 * Beginning state. IOC uninit state.
223 */
224 static void
225 bfa_ioc_sm_uninit_entry(struct bfa_ioc *ioc)
226 {
227 }
228
229 /**
230 * IOC is in uninit state.
231 */
232 static void
233 bfa_ioc_sm_uninit(struct bfa_ioc *ioc, enum ioc_event event)
234 {
235 switch (event) {
236 case IOC_E_RESET:
237 bfa_fsm_set_state(ioc, bfa_ioc_sm_reset);
238 break;
239
240 default:
241 bfa_sm_fault(ioc, event);
242 }
243 }
244
245 /**
246 * Reset entry actions -- initialize state machine
247 */
248 static void
249 bfa_ioc_sm_reset_entry(struct bfa_ioc *ioc)
250 {
251 bfa_fsm_set_state(&ioc->iocpf, bfa_iocpf_sm_reset);
252 }
253
254 /**
255 * IOC is in reset state.
256 */
257 static void
258 bfa_ioc_sm_reset(struct bfa_ioc *ioc, enum ioc_event event)
259 {
260 switch (event) {
261 case IOC_E_ENABLE:
262 bfa_fsm_set_state(ioc, bfa_ioc_sm_enabling);
263 break;
264
265 case IOC_E_DISABLE:
266 bfa_ioc_disable_comp(ioc);
267 break;
268
269 case IOC_E_DETACH:
270 bfa_fsm_set_state(ioc, bfa_ioc_sm_uninit);
271 break;
272
273 default:
274 bfa_sm_fault(ioc, event);
275 }
276 }
277
278 static void
279 bfa_ioc_sm_enabling_entry(struct bfa_ioc *ioc)
280 {
281 bfa_iocpf_enable(ioc);
282 }
283
284 /**
285 * Host IOC function is being enabled, awaiting response from firmware.
286 * Semaphore is acquired.
287 */
288 static void
289 bfa_ioc_sm_enabling(struct bfa_ioc *ioc, enum ioc_event event)
290 {
291 switch (event) {
292 case IOC_E_ENABLED:
293 bfa_fsm_set_state(ioc, bfa_ioc_sm_getattr);
294 break;
295
296 case IOC_E_PFAILED:
297 /* !!! fall through !!! */
298 case IOC_E_HWERROR:
299 ioc->cbfn->enable_cbfn(ioc->bfa, BFA_STATUS_IOC_FAILURE);
300 bfa_fsm_set_state(ioc, bfa_ioc_sm_fail_retry);
301 if (event != IOC_E_PFAILED)
302 bfa_iocpf_initfail(ioc);
303 break;
304
305 case IOC_E_DISABLE:
306 bfa_fsm_set_state(ioc, bfa_ioc_sm_disabling);
307 break;
308
309 case IOC_E_DETACH:
310 bfa_fsm_set_state(ioc, bfa_ioc_sm_uninit);
311 bfa_iocpf_stop(ioc);
312 break;
313
314 case IOC_E_ENABLE:
315 break;
316
317 default:
318 bfa_sm_fault(ioc, event);
319 }
320 }
321
322 /**
323 * Semaphore should be acquired for version check.
324 */
325 static void
326 bfa_ioc_sm_getattr_entry(struct bfa_ioc *ioc)
327 {
328 mod_timer(&ioc->ioc_timer, jiffies +
329 msecs_to_jiffies(BFA_IOC_TOV));
330 bfa_ioc_send_getattr(ioc);
331 }
332
333 /**
334 * IOC configuration in progress. Timer is active.
335 */
336 static void
337 bfa_ioc_sm_getattr(struct bfa_ioc *ioc, enum ioc_event event)
338 {
339 switch (event) {
340 case IOC_E_FWRSP_GETATTR:
341 del_timer(&ioc->ioc_timer);
342 bfa_ioc_check_attr_wwns(ioc);
343 bfa_fsm_set_state(ioc, bfa_ioc_sm_op);
344 break;
345
346 case IOC_E_PFAILED:
347 case IOC_E_HWERROR:
348 del_timer(&ioc->ioc_timer);
349 /* fall through */
350 case IOC_E_TIMEOUT:
351 ioc->cbfn->enable_cbfn(ioc->bfa, BFA_STATUS_IOC_FAILURE);
352 bfa_fsm_set_state(ioc, bfa_ioc_sm_fail_retry);
353 if (event != IOC_E_PFAILED)
354 bfa_iocpf_getattrfail(ioc);
355 break;
356
357 case IOC_E_DISABLE:
358 del_timer(&ioc->ioc_timer);
359 bfa_fsm_set_state(ioc, bfa_ioc_sm_disabling);
360 break;
361
362 case IOC_E_ENABLE:
363 break;
364
365 default:
366 bfa_sm_fault(ioc, event);
367 }
368 }
369
370 static void
371 bfa_ioc_sm_op_entry(struct bfa_ioc *ioc)
372 {
373 ioc->cbfn->enable_cbfn(ioc->bfa, BFA_STATUS_OK);
374 bfa_ioc_hb_monitor(ioc);
375 }
376
377 static void
378 bfa_ioc_sm_op(struct bfa_ioc *ioc, enum ioc_event event)
379 {
380 switch (event) {
381 case IOC_E_ENABLE:
382 break;
383
384 case IOC_E_DISABLE:
385 bfa_ioc_hb_stop(ioc);
386 bfa_fsm_set_state(ioc, bfa_ioc_sm_disabling);
387 break;
388
389 case IOC_E_PFAILED:
390 case IOC_E_HWERROR:
391 bfa_ioc_hb_stop(ioc);
392 /* !!! fall through !!! */
393 case IOC_E_HBFAIL:
394 bfa_ioc_fail_notify(ioc);
395 if (ioc->iocpf.auto_recover)
396 bfa_fsm_set_state(ioc, bfa_ioc_sm_fail_retry);
397 else
398 bfa_fsm_set_state(ioc, bfa_ioc_sm_fail);
399
400 if (event != IOC_E_PFAILED)
401 bfa_iocpf_fail(ioc);
402 break;
403
404 default:
405 bfa_sm_fault(ioc, event);
406 }
407 }
408
409 static void
410 bfa_ioc_sm_disabling_entry(struct bfa_ioc *ioc)
411 {
412 bfa_iocpf_disable(ioc);
413 }
414
415 /**
416 * IOC is being desabled
417 */
418 static void
419 bfa_ioc_sm_disabling(struct bfa_ioc *ioc, enum ioc_event event)
420 {
421 switch (event) {
422 case IOC_E_DISABLED:
423 bfa_fsm_set_state(ioc, bfa_ioc_sm_disabled);
424 break;
425
426 case IOC_E_HWERROR:
427 /*
428 * No state change. Will move to disabled state
429 * after iocpf sm completes failure processing and
430 * moves to disabled state.
431 */
432 bfa_iocpf_fail(ioc);
433 break;
434
435 default:
436 bfa_sm_fault(ioc, event);
437 }
438 }
439
440 /**
441 * IOC desable completion entry.
442 */
443 static void
444 bfa_ioc_sm_disabled_entry(struct bfa_ioc *ioc)
445 {
446 bfa_ioc_disable_comp(ioc);
447 }
448
449 static void
450 bfa_ioc_sm_disabled(struct bfa_ioc *ioc, enum ioc_event event)
451 {
452 switch (event) {
453 case IOC_E_ENABLE:
454 bfa_fsm_set_state(ioc, bfa_ioc_sm_enabling);
455 break;
456
457 case IOC_E_DISABLE:
458 ioc->cbfn->disable_cbfn(ioc->bfa);
459 break;
460
461 case IOC_E_DETACH:
462 bfa_fsm_set_state(ioc, bfa_ioc_sm_uninit);
463 bfa_iocpf_stop(ioc);
464 break;
465
466 default:
467 bfa_sm_fault(ioc, event);
468 }
469 }
470
471 static void
472 bfa_ioc_sm_fail_retry_entry(struct bfa_ioc *ioc)
473 {
474 }
475
476 /**
477 * Hardware initialization retry.
478 */
479 static void
480 bfa_ioc_sm_fail_retry(struct bfa_ioc *ioc, enum ioc_event event)
481 {
482 switch (event) {
483 case IOC_E_ENABLED:
484 bfa_fsm_set_state(ioc, bfa_ioc_sm_getattr);
485 break;
486
487 case IOC_E_PFAILED:
488 case IOC_E_HWERROR:
489 /**
490 * Initialization retry failed.
491 */
492 ioc->cbfn->enable_cbfn(ioc->bfa, BFA_STATUS_IOC_FAILURE);
493 if (event != IOC_E_PFAILED)
494 bfa_iocpf_initfail(ioc);
495 break;
496
497 case IOC_E_INITFAILED:
498 bfa_fsm_set_state(ioc, bfa_ioc_sm_fail);
499 break;
500
501 case IOC_E_ENABLE:
502 break;
503
504 case IOC_E_DISABLE:
505 bfa_fsm_set_state(ioc, bfa_ioc_sm_disabling);
506 break;
507
508 case IOC_E_DETACH:
509 bfa_fsm_set_state(ioc, bfa_ioc_sm_uninit);
510 bfa_iocpf_stop(ioc);
511 break;
512
513 default:
514 bfa_sm_fault(ioc, event);
515 }
516 }
517
518 static void
519 bfa_ioc_sm_fail_entry(struct bfa_ioc *ioc)
520 {
521 }
522
523 /**
524 * IOC failure.
525 */
526 static void
527 bfa_ioc_sm_fail(struct bfa_ioc *ioc, enum ioc_event event)
528 {
529 switch (event) {
530 case IOC_E_ENABLE:
531 ioc->cbfn->enable_cbfn(ioc->bfa, BFA_STATUS_IOC_FAILURE);
532 break;
533
534 case IOC_E_DISABLE:
535 bfa_fsm_set_state(ioc, bfa_ioc_sm_disabling);
536 break;
537
538 case IOC_E_DETACH:
539 bfa_fsm_set_state(ioc, bfa_ioc_sm_uninit);
540 bfa_iocpf_stop(ioc);
541 break;
542
543 case IOC_E_HWERROR:
544 /* HB failure notification, ignore. */
545 break;
546
547 default:
548 bfa_sm_fault(ioc, event);
549 }
550 }
551
552 /**
553 * IOCPF State Machine
554 */
555
556 /**
557 * Reset entry actions -- initialize state machine
558 */
559 static void
560 bfa_iocpf_sm_reset_entry(struct bfa_iocpf *iocpf)
561 {
562 iocpf->retry_count = 0;
563 iocpf->auto_recover = bfa_nw_auto_recover;
564 }
565
566 /**
567 * Beginning state. IOC is in reset state.
568 */
569 static void
570 bfa_iocpf_sm_reset(struct bfa_iocpf *iocpf, enum iocpf_event event)
571 {
572 switch (event) {
573 case IOCPF_E_ENABLE:
574 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_fwcheck);
575 break;
576
577 case IOCPF_E_STOP:
578 break;
579
580 default:
581 bfa_sm_fault(iocpf->ioc, event);
582 }
583 }
584
585 /**
586 * Semaphore should be acquired for version check.
587 */
588 static void
589 bfa_iocpf_sm_fwcheck_entry(struct bfa_iocpf *iocpf)
590 {
591 bfa_ioc_hw_sem_get(iocpf->ioc);
592 }
593
594 /**
595 * Awaiting h/w semaphore to continue with version check.
596 */
597 static void
598 bfa_iocpf_sm_fwcheck(struct bfa_iocpf *iocpf, enum iocpf_event event)
599 {
600 struct bfa_ioc *ioc = iocpf->ioc;
601
602 switch (event) {
603 case IOCPF_E_SEMLOCKED:
604 if (bfa_ioc_firmware_lock(ioc)) {
605 if (bfa_ioc_sync_complete(ioc)) {
606 iocpf->retry_count = 0;
607 bfa_ioc_sync_join(ioc);
608 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_hwinit);
609 } else {
610 bfa_ioc_firmware_unlock(ioc);
611 bfa_nw_ioc_hw_sem_release(ioc);
612 mod_timer(&ioc->sem_timer, jiffies +
613 msecs_to_jiffies(BFA_IOC_HWSEM_TOV));
614 }
615 } else {
616 bfa_nw_ioc_hw_sem_release(ioc);
617 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_mismatch);
618 }
619 break;
620
621 case IOCPF_E_DISABLE:
622 bfa_ioc_hw_sem_get_cancel(ioc);
623 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_reset);
624 bfa_ioc_pf_disabled(ioc);
625 break;
626
627 case IOCPF_E_STOP:
628 bfa_ioc_hw_sem_get_cancel(ioc);
629 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_reset);
630 break;
631
632 default:
633 bfa_sm_fault(ioc, event);
634 }
635 }
636
637 /**
638 * Notify enable completion callback
639 */
640 static void
641 bfa_iocpf_sm_mismatch_entry(struct bfa_iocpf *iocpf)
642 {
643 /* Call only the first time sm enters fwmismatch state. */
644 if (iocpf->retry_count == 0)
645 bfa_ioc_pf_fwmismatch(iocpf->ioc);
646
647 iocpf->retry_count++;
648 mod_timer(&(iocpf->ioc)->iocpf_timer, jiffies +
649 msecs_to_jiffies(BFA_IOC_TOV));
650 }
651
652 /**
653 * Awaiting firmware version match.
654 */
655 static void
656 bfa_iocpf_sm_mismatch(struct bfa_iocpf *iocpf, enum iocpf_event event)
657 {
658 struct bfa_ioc *ioc = iocpf->ioc;
659
660 switch (event) {
661 case IOCPF_E_TIMEOUT:
662 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_fwcheck);
663 break;
664
665 case IOCPF_E_DISABLE:
666 del_timer(&ioc->iocpf_timer);
667 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_reset);
668 bfa_ioc_pf_disabled(ioc);
669 break;
670
671 case IOCPF_E_STOP:
672 del_timer(&ioc->iocpf_timer);
673 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_reset);
674 break;
675
676 default:
677 bfa_sm_fault(ioc, event);
678 }
679 }
680
681 /**
682 * Request for semaphore.
683 */
684 static void
685 bfa_iocpf_sm_semwait_entry(struct bfa_iocpf *iocpf)
686 {
687 bfa_ioc_hw_sem_get(iocpf->ioc);
688 }
689
690 /**
691 * Awaiting semaphore for h/w initialzation.
692 */
693 static void
694 bfa_iocpf_sm_semwait(struct bfa_iocpf *iocpf, enum iocpf_event event)
695 {
696 struct bfa_ioc *ioc = iocpf->ioc;
697
698 switch (event) {
699 case IOCPF_E_SEMLOCKED:
700 if (bfa_ioc_sync_complete(ioc)) {
701 bfa_ioc_sync_join(ioc);
702 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_hwinit);
703 } else {
704 bfa_nw_ioc_hw_sem_release(ioc);
705 mod_timer(&ioc->sem_timer, jiffies +
706 msecs_to_jiffies(BFA_IOC_HWSEM_TOV));
707 }
708 break;
709
710 case IOCPF_E_DISABLE:
711 bfa_ioc_hw_sem_get_cancel(ioc);
712 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_disabling_sync);
713 break;
714
715 default:
716 bfa_sm_fault(ioc, event);
717 }
718 }
719
720 static void
721 bfa_iocpf_sm_hwinit_entry(struct bfa_iocpf *iocpf)
722 {
723 mod_timer(&(iocpf->ioc)->iocpf_timer, jiffies +
724 msecs_to_jiffies(BFA_IOC_TOV));
725 bfa_ioc_reset(iocpf->ioc, 0);
726 }
727
728 /**
729 * Hardware is being initialized. Interrupts are enabled.
730 * Holding hardware semaphore lock.
731 */
732 static void
733 bfa_iocpf_sm_hwinit(struct bfa_iocpf *iocpf, enum iocpf_event event)
734 {
735 struct bfa_ioc *ioc = iocpf->ioc;
736
737 switch (event) {
738 case IOCPF_E_FWREADY:
739 del_timer(&ioc->iocpf_timer);
740 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_enabling);
741 break;
742
743 case IOCPF_E_INITFAIL:
744 del_timer(&ioc->iocpf_timer);
745 /*
746 * !!! fall through !!!
747 */
748
749 case IOCPF_E_TIMEOUT:
750 bfa_nw_ioc_hw_sem_release(ioc);
751 if (event == IOCPF_E_TIMEOUT)
752 bfa_ioc_pf_failed(ioc);
753 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_initfail_sync);
754 break;
755
756 case IOCPF_E_DISABLE:
757 del_timer(&ioc->iocpf_timer);
758 bfa_ioc_sync_leave(ioc);
759 bfa_nw_ioc_hw_sem_release(ioc);
760 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_disabled);
761 break;
762
763 default:
764 bfa_sm_fault(ioc, event);
765 }
766 }
767
768 static void
769 bfa_iocpf_sm_enabling_entry(struct bfa_iocpf *iocpf)
770 {
771 mod_timer(&(iocpf->ioc)->iocpf_timer, jiffies +
772 msecs_to_jiffies(BFA_IOC_TOV));
773 bfa_ioc_send_enable(iocpf->ioc);
774 }
775
776 /**
777 * Host IOC function is being enabled, awaiting response from firmware.
778 * Semaphore is acquired.
779 */
780 static void
781 bfa_iocpf_sm_enabling(struct bfa_iocpf *iocpf, enum iocpf_event event)
782 {
783 struct bfa_ioc *ioc = iocpf->ioc;
784
785 switch (event) {
786 case IOCPF_E_FWRSP_ENABLE:
787 del_timer(&ioc->iocpf_timer);
788 bfa_nw_ioc_hw_sem_release(ioc);
789 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_ready);
790 break;
791
792 case IOCPF_E_INITFAIL:
793 del_timer(&ioc->iocpf_timer);
794 /*
795 * !!! fall through !!!
796 */
797 case IOCPF_E_TIMEOUT:
798 bfa_nw_ioc_hw_sem_release(ioc);
799 if (event == IOCPF_E_TIMEOUT)
800 bfa_ioc_pf_failed(ioc);
801 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_initfail_sync);
802 break;
803
804 case IOCPF_E_DISABLE:
805 del_timer(&ioc->iocpf_timer);
806 bfa_nw_ioc_hw_sem_release(ioc);
807 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_disabling);
808 break;
809
810 case IOCPF_E_FWREADY:
811 bfa_ioc_send_enable(ioc);
812 break;
813
814 default:
815 bfa_sm_fault(ioc, event);
816 }
817 }
818
819 static bool
820 bfa_nw_ioc_is_operational(struct bfa_ioc *ioc)
821 {
822 return bfa_fsm_cmp_state(ioc, bfa_ioc_sm_op);
823 }
824
825 static void
826 bfa_iocpf_sm_ready_entry(struct bfa_iocpf *iocpf)
827 {
828 bfa_ioc_pf_enabled(iocpf->ioc);
829 }
830
831 static void
832 bfa_iocpf_sm_ready(struct bfa_iocpf *iocpf, enum iocpf_event event)
833 {
834 struct bfa_ioc *ioc = iocpf->ioc;
835
836 switch (event) {
837 case IOCPF_E_DISABLE:
838 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_disabling);
839 break;
840
841 case IOCPF_E_GETATTRFAIL:
842 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_initfail_sync);
843 break;
844
845 case IOCPF_E_FAIL:
846 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_fail_sync);
847 break;
848
849 case IOCPF_E_FWREADY:
850 bfa_ioc_pf_failed(ioc);
851 if (bfa_nw_ioc_is_operational(ioc))
852 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_fail_sync);
853 else
854 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_initfail_sync);
855 break;
856
857 default:
858 bfa_sm_fault(ioc, event);
859 }
860 }
861
862 static void
863 bfa_iocpf_sm_disabling_entry(struct bfa_iocpf *iocpf)
864 {
865 mod_timer(&(iocpf->ioc)->iocpf_timer, jiffies +
866 msecs_to_jiffies(BFA_IOC_TOV));
867 bfa_ioc_send_disable(iocpf->ioc);
868 }
869
870 /**
871 * IOC is being disabled
872 */
873 static void
874 bfa_iocpf_sm_disabling(struct bfa_iocpf *iocpf, enum iocpf_event event)
875 {
876 struct bfa_ioc *ioc = iocpf->ioc;
877
878 switch (event) {
879 case IOCPF_E_FWRSP_DISABLE:
880 case IOCPF_E_FWREADY:
881 del_timer(&ioc->iocpf_timer);
882 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_disabling_sync);
883 break;
884
885 case IOCPF_E_FAIL:
886 del_timer(&ioc->iocpf_timer);
887 /*
888 * !!! fall through !!!
889 */
890
891 case IOCPF_E_TIMEOUT:
892 writel(BFI_IOC_FAIL, ioc->ioc_regs.ioc_fwstate);
893 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_disabling_sync);
894 break;
895
896 case IOCPF_E_FWRSP_ENABLE:
897 break;
898
899 default:
900 bfa_sm_fault(ioc, event);
901 }
902 }
903
904 static void
905 bfa_iocpf_sm_disabling_sync_entry(struct bfa_iocpf *iocpf)
906 {
907 bfa_ioc_hw_sem_get(iocpf->ioc);
908 }
909
910 /**
911 * IOC hb ack request is being removed.
912 */
913 static void
914 bfa_iocpf_sm_disabling_sync(struct bfa_iocpf *iocpf, enum iocpf_event event)
915 {
916 struct bfa_ioc *ioc = iocpf->ioc;
917
918 switch (event) {
919 case IOCPF_E_SEMLOCKED:
920 bfa_ioc_sync_leave(ioc);
921 bfa_nw_ioc_hw_sem_release(ioc);
922 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_disabled);
923 break;
924
925 case IOCPF_E_FAIL:
926 break;
927
928 default:
929 bfa_sm_fault(ioc, event);
930 }
931 }
932
933 /**
934 * IOC disable completion entry.
935 */
936 static void
937 bfa_iocpf_sm_disabled_entry(struct bfa_iocpf *iocpf)
938 {
939 bfa_ioc_pf_disabled(iocpf->ioc);
940 }
941
942 static void
943 bfa_iocpf_sm_disabled(struct bfa_iocpf *iocpf, enum iocpf_event event)
944 {
945 struct bfa_ioc *ioc = iocpf->ioc;
946
947 switch (event) {
948 case IOCPF_E_ENABLE:
949 iocpf->retry_count = 0;
950 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_semwait);
951 break;
952
953 case IOCPF_E_STOP:
954 bfa_ioc_firmware_unlock(ioc);
955 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_reset);
956 break;
957
958 default:
959 bfa_sm_fault(ioc, event);
960 }
961 }
962
963 static void
964 bfa_iocpf_sm_initfail_sync_entry(struct bfa_iocpf *iocpf)
965 {
966 bfa_ioc_hw_sem_get(iocpf->ioc);
967 }
968
969 /**
970 * Hardware initialization failed.
971 */
972 static void
973 bfa_iocpf_sm_initfail_sync(struct bfa_iocpf *iocpf, enum iocpf_event event)
974 {
975 struct bfa_ioc *ioc = iocpf->ioc;
976
977 switch (event) {
978 case IOCPF_E_SEMLOCKED:
979 bfa_ioc_notify_fail(ioc);
980 bfa_ioc_sync_ack(ioc);
981 iocpf->retry_count++;
982 if (iocpf->retry_count >= BFA_IOC_HWINIT_MAX) {
983 bfa_ioc_sync_leave(ioc);
984 bfa_nw_ioc_hw_sem_release(ioc);
985 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_initfail);
986 } else {
987 if (bfa_ioc_sync_complete(ioc))
988 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_hwinit);
989 else {
990 bfa_nw_ioc_hw_sem_release(ioc);
991 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_semwait);
992 }
993 }
994 break;
995
996 case IOCPF_E_DISABLE:
997 bfa_ioc_hw_sem_get_cancel(ioc);
998 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_disabling_sync);
999 break;
1000
1001 case IOCPF_E_STOP:
1002 bfa_ioc_hw_sem_get_cancel(ioc);
1003 bfa_ioc_firmware_unlock(ioc);
1004 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_reset);
1005 break;
1006
1007 case IOCPF_E_FAIL:
1008 break;
1009
1010 default:
1011 bfa_sm_fault(ioc, event);
1012 }
1013 }
1014
1015 static void
1016 bfa_iocpf_sm_initfail_entry(struct bfa_iocpf *iocpf)
1017 {
1018 bfa_ioc_pf_initfailed(iocpf->ioc);
1019 }
1020
1021 /**
1022 * Hardware initialization failed.
1023 */
1024 static void
1025 bfa_iocpf_sm_initfail(struct bfa_iocpf *iocpf, enum iocpf_event event)
1026 {
1027 struct bfa_ioc *ioc = iocpf->ioc;
1028
1029 switch (event) {
1030 case IOCPF_E_DISABLE:
1031 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_disabled);
1032 break;
1033
1034 case IOCPF_E_STOP:
1035 bfa_ioc_firmware_unlock(ioc);
1036 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_reset);
1037 break;
1038
1039 default:
1040 bfa_sm_fault(ioc, event);
1041 }
1042 }
1043
1044 static void
1045 bfa_iocpf_sm_fail_sync_entry(struct bfa_iocpf *iocpf)
1046 {
1047 /**
1048 * Mark IOC as failed in hardware and stop firmware.
1049 */
1050 bfa_ioc_lpu_stop(iocpf->ioc);
1051
1052 /**
1053 * Flush any queued up mailbox requests.
1054 */
1055 bfa_ioc_mbox_hbfail(iocpf->ioc);
1056 bfa_ioc_hw_sem_get(iocpf->ioc);
1057 }
1058
1059 /**
1060 * IOC is in failed state.
1061 */
1062 static void
1063 bfa_iocpf_sm_fail_sync(struct bfa_iocpf *iocpf, enum iocpf_event event)
1064 {
1065 struct bfa_ioc *ioc = iocpf->ioc;
1066
1067 switch (event) {
1068 case IOCPF_E_SEMLOCKED:
1069 iocpf->retry_count = 0;
1070 bfa_ioc_sync_ack(ioc);
1071 bfa_ioc_notify_fail(ioc);
1072 if (!iocpf->auto_recover) {
1073 bfa_ioc_sync_leave(ioc);
1074 bfa_nw_ioc_hw_sem_release(ioc);
1075 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_fail);
1076 } else {
1077 if (bfa_ioc_sync_complete(ioc))
1078 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_hwinit);
1079 else {
1080 bfa_nw_ioc_hw_sem_release(ioc);
1081 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_semwait);
1082 }
1083 }
1084 break;
1085
1086 case IOCPF_E_DISABLE:
1087 bfa_ioc_hw_sem_get_cancel(ioc);
1088 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_disabling_sync);
1089 break;
1090
1091 case IOCPF_E_FAIL:
1092 break;
1093
1094 default:
1095 bfa_sm_fault(ioc, event);
1096 }
1097 }
1098
1099 static void
1100 bfa_iocpf_sm_fail_entry(struct bfa_iocpf *iocpf)
1101 {
1102 }
1103
1104 /**
1105 * @brief
1106 * IOC is in failed state.
1107 */
1108 static void
1109 bfa_iocpf_sm_fail(struct bfa_iocpf *iocpf, enum iocpf_event event)
1110 {
1111 switch (event) {
1112 case IOCPF_E_DISABLE:
1113 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_disabled);
1114 break;
1115
1116 default:
1117 bfa_sm_fault(iocpf->ioc, event);
1118 }
1119 }
1120
1121 /**
1122 * BFA IOC private functions
1123 */
1124
1125 static void
1126 bfa_ioc_disable_comp(struct bfa_ioc *ioc)
1127 {
1128 struct list_head *qe;
1129 struct bfa_ioc_hbfail_notify *notify;
1130
1131 ioc->cbfn->disable_cbfn(ioc->bfa);
1132
1133 /**
1134 * Notify common modules registered for notification.
1135 */
1136 list_for_each(qe, &ioc->hb_notify_q) {
1137 notify = (struct bfa_ioc_hbfail_notify *) qe;
1138 notify->cbfn(notify->cbarg);
1139 }
1140 }
1141
1142 bool
1143 bfa_nw_ioc_sem_get(void __iomem *sem_reg)
1144 {
1145 u32 r32;
1146 int cnt = 0;
1147 #define BFA_SEM_SPINCNT 3000
1148
1149 r32 = readl(sem_reg);
1150
1151 while (r32 && (cnt < BFA_SEM_SPINCNT)) {
1152 cnt++;
1153 udelay(2);
1154 r32 = readl(sem_reg);
1155 }
1156
1157 if (r32 == 0)
1158 return true;
1159
1160 BUG_ON(!(cnt < BFA_SEM_SPINCNT));
1161 return false;
1162 }
1163
1164 void
1165 bfa_nw_ioc_sem_release(void __iomem *sem_reg)
1166 {
1167 writel(1, sem_reg);
1168 }
1169
1170 static void
1171 bfa_ioc_hw_sem_get(struct bfa_ioc *ioc)
1172 {
1173 u32 r32;
1174
1175 /**
1176 * First read to the semaphore register will return 0, subsequent reads
1177 * will return 1. Semaphore is released by writing 1 to the register
1178 */
1179 r32 = readl(ioc->ioc_regs.ioc_sem_reg);
1180 if (r32 == 0) {
1181 bfa_fsm_send_event(&ioc->iocpf, IOCPF_E_SEMLOCKED);
1182 return;
1183 }
1184
1185 mod_timer(&ioc->sem_timer, jiffies +
1186 msecs_to_jiffies(BFA_IOC_HWSEM_TOV));
1187 }
1188
1189 void
1190 bfa_nw_ioc_hw_sem_release(struct bfa_ioc *ioc)
1191 {
1192 writel(1, ioc->ioc_regs.ioc_sem_reg);
1193 }
1194
1195 static void
1196 bfa_ioc_hw_sem_get_cancel(struct bfa_ioc *ioc)
1197 {
1198 del_timer(&ioc->sem_timer);
1199 }
1200
1201 /**
1202 * @brief
1203 * Initialize LPU local memory (aka secondary memory / SRAM)
1204 */
1205 static void
1206 bfa_ioc_lmem_init(struct bfa_ioc *ioc)
1207 {
1208 u32 pss_ctl;
1209 int i;
1210 #define PSS_LMEM_INIT_TIME 10000
1211
1212 pss_ctl = readl(ioc->ioc_regs.pss_ctl_reg);
1213 pss_ctl &= ~__PSS_LMEM_RESET;
1214 pss_ctl |= __PSS_LMEM_INIT_EN;
1215
1216 /*
1217 * i2c workaround 12.5khz clock
1218 */
1219 pss_ctl |= __PSS_I2C_CLK_DIV(3UL);
1220 writel(pss_ctl, ioc->ioc_regs.pss_ctl_reg);
1221
1222 /**
1223 * wait for memory initialization to be complete
1224 */
1225 i = 0;
1226 do {
1227 pss_ctl = readl(ioc->ioc_regs.pss_ctl_reg);
1228 i++;
1229 } while (!(pss_ctl & __PSS_LMEM_INIT_DONE) && (i < PSS_LMEM_INIT_TIME));
1230
1231 /**
1232 * If memory initialization is not successful, IOC timeout will catch
1233 * such failures.
1234 */
1235 BUG_ON(!(pss_ctl & __PSS_LMEM_INIT_DONE));
1236
1237 pss_ctl &= ~(__PSS_LMEM_INIT_DONE | __PSS_LMEM_INIT_EN);
1238 writel(pss_ctl, ioc->ioc_regs.pss_ctl_reg);
1239 }
1240
1241 static void
1242 bfa_ioc_lpu_start(struct bfa_ioc *ioc)
1243 {
1244 u32 pss_ctl;
1245
1246 /**
1247 * Take processor out of reset.
1248 */
1249 pss_ctl = readl(ioc->ioc_regs.pss_ctl_reg);
1250 pss_ctl &= ~__PSS_LPU0_RESET;
1251
1252 writel(pss_ctl, ioc->ioc_regs.pss_ctl_reg);
1253 }
1254
1255 static void
1256 bfa_ioc_lpu_stop(struct bfa_ioc *ioc)
1257 {
1258 u32 pss_ctl;
1259
1260 /**
1261 * Put processors in reset.
1262 */
1263 pss_ctl = readl(ioc->ioc_regs.pss_ctl_reg);
1264 pss_ctl |= (__PSS_LPU0_RESET | __PSS_LPU1_RESET);
1265
1266 writel(pss_ctl, ioc->ioc_regs.pss_ctl_reg);
1267 }
1268
1269 /**
1270 * Get driver and firmware versions.
1271 */
1272 void
1273 bfa_nw_ioc_fwver_get(struct bfa_ioc *ioc, struct bfi_ioc_image_hdr *fwhdr)
1274 {
1275 u32 pgnum, pgoff;
1276 u32 loff = 0;
1277 int i;
1278 u32 *fwsig = (u32 *) fwhdr;
1279
1280 pgnum = bfa_ioc_smem_pgnum(ioc, loff);
1281 pgoff = bfa_ioc_smem_pgoff(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)
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 (fwhdr.exec != drv_fwhdr->exec)
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
1356 ioc_fwstate = readl(ioc->ioc_regs.ioc_fwstate);
1357
1358 if (force)
1359 ioc_fwstate = BFI_IOC_UNINIT;
1360
1361 /**
1362 * check if firmware is valid
1363 */
1364 fwvalid = (ioc_fwstate == BFI_IOC_UNINIT) ?
1365 false : bfa_ioc_fwver_valid(ioc);
1366
1367 if (!fwvalid) {
1368 bfa_ioc_boot(ioc, BFI_BOOT_TYPE_NORMAL, ioc->pcidev.device_id);
1369 return;
1370 }
1371
1372 /**
1373 * If hardware initialization is in progress (initialized by other IOC),
1374 * just wait for an initialization completion interrupt.
1375 */
1376 if (ioc_fwstate == BFI_IOC_INITING) {
1377 ioc->cbfn->reset_cbfn(ioc->bfa);
1378 return;
1379 }
1380
1381 /**
1382 * If IOC function is disabled and firmware version is same,
1383 * just re-enable IOC.
1384 */
1385 if (ioc_fwstate == BFI_IOC_DISABLED || ioc_fwstate == BFI_IOC_OP) {
1386 /**
1387 * When using MSI-X any pending firmware ready event should
1388 * be flushed. Otherwise MSI-X interrupts are not delivered.
1389 */
1390 bfa_ioc_msgflush(ioc);
1391 ioc->cbfn->reset_cbfn(ioc->bfa);
1392 bfa_fsm_send_event(&ioc->iocpf, IOCPF_E_FWREADY);
1393 return;
1394 }
1395
1396 /**
1397 * Initialize the h/w for any other states.
1398 */
1399 bfa_ioc_boot(ioc, BFI_BOOT_TYPE_NORMAL, ioc->pcidev.device_id);
1400 }
1401
1402 void
1403 bfa_nw_ioc_timeout(void *ioc_arg)
1404 {
1405 struct bfa_ioc *ioc = (struct bfa_ioc *) ioc_arg;
1406
1407 bfa_fsm_send_event(ioc, IOC_E_TIMEOUT);
1408 }
1409
1410 static void
1411 bfa_ioc_mbox_send(struct bfa_ioc *ioc, void *ioc_msg, int len)
1412 {
1413 u32 *msgp = (u32 *) ioc_msg;
1414 u32 i;
1415
1416 BUG_ON(!(len <= BFI_IOC_MSGLEN_MAX));
1417
1418 /*
1419 * first write msg to mailbox registers
1420 */
1421 for (i = 0; i < len / sizeof(u32); i++)
1422 writel(cpu_to_le32(msgp[i]),
1423 ioc->ioc_regs.hfn_mbox + i * sizeof(u32));
1424
1425 for (; i < BFI_IOC_MSGLEN_MAX / sizeof(u32); i++)
1426 writel(0, ioc->ioc_regs.hfn_mbox + i * sizeof(u32));
1427
1428 /*
1429 * write 1 to mailbox CMD to trigger LPU event
1430 */
1431 writel(1, ioc->ioc_regs.hfn_mbox_cmd);
1432 (void) readl(ioc->ioc_regs.hfn_mbox_cmd);
1433 }
1434
1435 static void
1436 bfa_ioc_send_enable(struct bfa_ioc *ioc)
1437 {
1438 struct bfi_ioc_ctrl_req enable_req;
1439 struct timeval tv;
1440
1441 bfi_h2i_set(enable_req.mh, BFI_MC_IOC, BFI_IOC_H2I_ENABLE_REQ,
1442 bfa_ioc_portid(ioc));
1443 enable_req.ioc_class = ioc->ioc_mc;
1444 do_gettimeofday(&tv);
1445 enable_req.tv_sec = ntohl(tv.tv_sec);
1446 bfa_ioc_mbox_send(ioc, &enable_req, sizeof(struct bfi_ioc_ctrl_req));
1447 }
1448
1449 static void
1450 bfa_ioc_send_disable(struct bfa_ioc *ioc)
1451 {
1452 struct bfi_ioc_ctrl_req disable_req;
1453
1454 bfi_h2i_set(disable_req.mh, BFI_MC_IOC, BFI_IOC_H2I_DISABLE_REQ,
1455 bfa_ioc_portid(ioc));
1456 bfa_ioc_mbox_send(ioc, &disable_req, sizeof(struct bfi_ioc_ctrl_req));
1457 }
1458
1459 static void
1460 bfa_ioc_send_getattr(struct bfa_ioc *ioc)
1461 {
1462 struct bfi_ioc_getattr_req attr_req;
1463
1464 bfi_h2i_set(attr_req.mh, BFI_MC_IOC, BFI_IOC_H2I_GETATTR_REQ,
1465 bfa_ioc_portid(ioc));
1466 bfa_dma_be_addr_set(attr_req.attr_addr, ioc->attr_dma.pa);
1467 bfa_ioc_mbox_send(ioc, &attr_req, sizeof(attr_req));
1468 }
1469
1470 void
1471 bfa_nw_ioc_hb_check(void *cbarg)
1472 {
1473 struct bfa_ioc *ioc = cbarg;
1474 u32 hb_count;
1475
1476 hb_count = readl(ioc->ioc_regs.heartbeat);
1477 if (ioc->hb_count == hb_count) {
1478 bfa_ioc_recover(ioc);
1479 return;
1480 } else {
1481 ioc->hb_count = hb_count;
1482 }
1483
1484 bfa_ioc_mbox_poll(ioc);
1485 mod_timer(&ioc->hb_timer, jiffies +
1486 msecs_to_jiffies(BFA_IOC_HB_TOV));
1487 }
1488
1489 static void
1490 bfa_ioc_hb_monitor(struct bfa_ioc *ioc)
1491 {
1492 ioc->hb_count = readl(ioc->ioc_regs.heartbeat);
1493 mod_timer(&ioc->hb_timer, jiffies +
1494 msecs_to_jiffies(BFA_IOC_HB_TOV));
1495 }
1496
1497 static void
1498 bfa_ioc_hb_stop(struct bfa_ioc *ioc)
1499 {
1500 del_timer(&ioc->hb_timer);
1501 }
1502
1503 /**
1504 * @brief
1505 * Initiate a full firmware download.
1506 */
1507 static void
1508 bfa_ioc_download_fw(struct bfa_ioc *ioc, u32 boot_type,
1509 u32 boot_param)
1510 {
1511 u32 *fwimg;
1512 u32 pgnum, pgoff;
1513 u32 loff = 0;
1514 u32 chunkno = 0;
1515 u32 i;
1516
1517 /**
1518 * Initialize LMEM first before code download
1519 */
1520 bfa_ioc_lmem_init(ioc);
1521
1522 fwimg = bfa_cb_image_get_chunk(BFA_IOC_FWIMG_TYPE(ioc), chunkno);
1523
1524 pgnum = bfa_ioc_smem_pgnum(ioc, loff);
1525 pgoff = bfa_ioc_smem_pgoff(ioc, loff);
1526
1527 writel(pgnum, ioc->ioc_regs.host_page_num_fn);
1528
1529 for (i = 0; i < bfa_cb_image_get_size(BFA_IOC_FWIMG_TYPE(ioc)); i++) {
1530 if (BFA_IOC_FLASH_CHUNK_NO(i) != chunkno) {
1531 chunkno = BFA_IOC_FLASH_CHUNK_NO(i);
1532 fwimg = bfa_cb_image_get_chunk(BFA_IOC_FWIMG_TYPE(ioc),
1533 BFA_IOC_FLASH_CHUNK_ADDR(chunkno));
1534 }
1535
1536 /**
1537 * write smem
1538 */
1539 writel((swab32(fwimg[BFA_IOC_FLASH_OFFSET_IN_CHUNK(i)])),
1540 ((ioc->ioc_regs.smem_page_start) + (loff)));
1541
1542 loff += sizeof(u32);
1543
1544 /**
1545 * handle page offset wrap around
1546 */
1547 loff = PSS_SMEM_PGOFF(loff);
1548 if (loff == 0) {
1549 pgnum++;
1550 writel(pgnum,
1551 ioc->ioc_regs.host_page_num_fn);
1552 }
1553 }
1554
1555 writel(bfa_ioc_smem_pgnum(ioc, 0),
1556 ioc->ioc_regs.host_page_num_fn);
1557
1558 /*
1559 * Set boot type and boot param at the end.
1560 */
1561 writel((swab32(swab32(boot_type))), ((ioc->ioc_regs.smem_page_start)
1562 + (BFI_BOOT_TYPE_OFF)));
1563 writel((swab32(swab32(boot_param))), ((ioc->ioc_regs.smem_page_start)
1564 + (BFI_BOOT_PARAM_OFF)));
1565 }
1566
1567 static void
1568 bfa_ioc_reset(struct bfa_ioc *ioc, bool force)
1569 {
1570 bfa_ioc_hwinit(ioc, force);
1571 }
1572
1573 /**
1574 * @brief
1575 * Update BFA configuration from firmware configuration.
1576 */
1577 static void
1578 bfa_ioc_getattr_reply(struct bfa_ioc *ioc)
1579 {
1580 struct bfi_ioc_attr *attr = ioc->attr;
1581
1582 attr->adapter_prop = ntohl(attr->adapter_prop);
1583 attr->card_type = ntohl(attr->card_type);
1584 attr->maxfrsize = ntohs(attr->maxfrsize);
1585
1586 bfa_fsm_send_event(ioc, IOC_E_FWRSP_GETATTR);
1587 }
1588
1589 /**
1590 * Attach time initialization of mbox logic.
1591 */
1592 static void
1593 bfa_ioc_mbox_attach(struct bfa_ioc *ioc)
1594 {
1595 struct bfa_ioc_mbox_mod *mod = &ioc->mbox_mod;
1596 int mc;
1597
1598 INIT_LIST_HEAD(&mod->cmd_q);
1599 for (mc = 0; mc < BFI_MC_MAX; mc++) {
1600 mod->mbhdlr[mc].cbfn = NULL;
1601 mod->mbhdlr[mc].cbarg = ioc->bfa;
1602 }
1603 }
1604
1605 /**
1606 * Mbox poll timer -- restarts any pending mailbox requests.
1607 */
1608 static void
1609 bfa_ioc_mbox_poll(struct bfa_ioc *ioc)
1610 {
1611 struct bfa_ioc_mbox_mod *mod = &ioc->mbox_mod;
1612 struct bfa_mbox_cmd *cmd;
1613 u32 stat;
1614
1615 /**
1616 * If no command pending, do nothing
1617 */
1618 if (list_empty(&mod->cmd_q))
1619 return;
1620
1621 /**
1622 * If previous command is not yet fetched by firmware, do nothing
1623 */
1624 stat = readl(ioc->ioc_regs.hfn_mbox_cmd);
1625 if (stat)
1626 return;
1627
1628 /**
1629 * Enqueue command to firmware.
1630 */
1631 bfa_q_deq(&mod->cmd_q, &cmd);
1632 bfa_ioc_mbox_send(ioc, cmd->msg, sizeof(cmd->msg));
1633 }
1634
1635 /**
1636 * Cleanup any pending requests.
1637 */
1638 static void
1639 bfa_ioc_mbox_hbfail(struct bfa_ioc *ioc)
1640 {
1641 struct bfa_ioc_mbox_mod *mod = &ioc->mbox_mod;
1642 struct bfa_mbox_cmd *cmd;
1643
1644 while (!list_empty(&mod->cmd_q))
1645 bfa_q_deq(&mod->cmd_q, &cmd);
1646 }
1647
1648 static void
1649 bfa_ioc_fail_notify(struct bfa_ioc *ioc)
1650 {
1651 struct list_head *qe;
1652 struct bfa_ioc_hbfail_notify *notify;
1653
1654 /**
1655 * Notify driver and common modules registered for notification.
1656 */
1657 ioc->cbfn->hbfail_cbfn(ioc->bfa);
1658 list_for_each(qe, &ioc->hb_notify_q) {
1659 notify = (struct bfa_ioc_hbfail_notify *) qe;
1660 notify->cbfn(notify->cbarg);
1661 }
1662 }
1663
1664 static void
1665 bfa_ioc_pf_enabled(struct bfa_ioc *ioc)
1666 {
1667 bfa_fsm_send_event(ioc, IOC_E_ENABLED);
1668 }
1669
1670 static void
1671 bfa_ioc_pf_disabled(struct bfa_ioc *ioc)
1672 {
1673 bfa_fsm_send_event(ioc, IOC_E_DISABLED);
1674 }
1675
1676 static void
1677 bfa_ioc_pf_initfailed(struct bfa_ioc *ioc)
1678 {
1679 bfa_fsm_send_event(ioc, IOC_E_INITFAILED);
1680 }
1681
1682 static void
1683 bfa_ioc_pf_failed(struct bfa_ioc *ioc)
1684 {
1685 bfa_fsm_send_event(ioc, IOC_E_PFAILED);
1686 }
1687
1688 static void
1689 bfa_ioc_pf_fwmismatch(struct bfa_ioc *ioc)
1690 {
1691 /**
1692 * Provide enable completion callback and AEN notification.
1693 */
1694 ioc->cbfn->enable_cbfn(ioc->bfa, BFA_STATUS_IOC_FAILURE);
1695 }
1696
1697 /**
1698 * IOC public
1699 */
1700 static enum bfa_status
1701 bfa_ioc_pll_init(struct bfa_ioc *ioc)
1702 {
1703 /*
1704 * Hold semaphore so that nobody can access the chip during init.
1705 */
1706 bfa_nw_ioc_sem_get(ioc->ioc_regs.ioc_init_sem_reg);
1707
1708 bfa_ioc_pll_init_asic(ioc);
1709
1710 ioc->pllinit = true;
1711 /*
1712 * release semaphore.
1713 */
1714 bfa_nw_ioc_sem_release(ioc->ioc_regs.ioc_init_sem_reg);
1715
1716 return BFA_STATUS_OK;
1717 }
1718
1719 /**
1720 * Interface used by diag module to do firmware boot with memory test
1721 * as the entry vector.
1722 */
1723 static void
1724 bfa_ioc_boot(struct bfa_ioc *ioc, u32 boot_type, u32 boot_param)
1725 {
1726 void __iomem *rb;
1727
1728 bfa_ioc_stats(ioc, ioc_boots);
1729
1730 if (bfa_ioc_pll_init(ioc) != BFA_STATUS_OK)
1731 return;
1732
1733 /**
1734 * Initialize IOC state of all functions on a chip reset.
1735 */
1736 rb = ioc->pcidev.pci_bar_kva;
1737 if (boot_param == BFI_BOOT_TYPE_MEMTEST) {
1738 writel(BFI_IOC_MEMTEST, (rb + BFA_IOC0_STATE_REG));
1739 writel(BFI_IOC_MEMTEST, (rb + BFA_IOC1_STATE_REG));
1740 } else {
1741 writel(BFI_IOC_INITING, (rb + BFA_IOC0_STATE_REG));
1742 writel(BFI_IOC_INITING, (rb + BFA_IOC1_STATE_REG));
1743 }
1744
1745 bfa_ioc_msgflush(ioc);
1746 bfa_ioc_download_fw(ioc, boot_type, boot_param);
1747
1748 /**
1749 * Enable interrupts just before starting LPU
1750 */
1751 ioc->cbfn->reset_cbfn(ioc->bfa);
1752 bfa_ioc_lpu_start(ioc);
1753 }
1754
1755 /**
1756 * Enable/disable IOC failure auto recovery.
1757 */
1758 void
1759 bfa_nw_ioc_auto_recover(bool auto_recover)
1760 {
1761 bfa_nw_auto_recover = auto_recover;
1762 }
1763
1764 static void
1765 bfa_ioc_msgget(struct bfa_ioc *ioc, void *mbmsg)
1766 {
1767 u32 *msgp = mbmsg;
1768 u32 r32;
1769 int i;
1770
1771 /**
1772 * read the MBOX msg
1773 */
1774 for (i = 0; i < (sizeof(union bfi_ioc_i2h_msg_u) / sizeof(u32));
1775 i++) {
1776 r32 = readl(ioc->ioc_regs.lpu_mbox +
1777 i * sizeof(u32));
1778 msgp[i] = htonl(r32);
1779 }
1780
1781 /**
1782 * turn off mailbox interrupt by clearing mailbox status
1783 */
1784 writel(1, ioc->ioc_regs.lpu_mbox_cmd);
1785 readl(ioc->ioc_regs.lpu_mbox_cmd);
1786 }
1787
1788 static void
1789 bfa_ioc_isr(struct bfa_ioc *ioc, struct bfi_mbmsg *m)
1790 {
1791 union bfi_ioc_i2h_msg_u *msg;
1792 struct bfa_iocpf *iocpf = &ioc->iocpf;
1793
1794 msg = (union bfi_ioc_i2h_msg_u *) m;
1795
1796 bfa_ioc_stats(ioc, ioc_isrs);
1797
1798 switch (msg->mh.msg_id) {
1799 case BFI_IOC_I2H_HBEAT:
1800 break;
1801
1802 case BFI_IOC_I2H_READY_EVENT:
1803 bfa_fsm_send_event(iocpf, IOCPF_E_FWREADY);
1804 break;
1805
1806 case BFI_IOC_I2H_ENABLE_REPLY:
1807 bfa_fsm_send_event(iocpf, IOCPF_E_FWRSP_ENABLE);
1808 break;
1809
1810 case BFI_IOC_I2H_DISABLE_REPLY:
1811 bfa_fsm_send_event(iocpf, IOCPF_E_FWRSP_DISABLE);
1812 break;
1813
1814 case BFI_IOC_I2H_GETATTR_REPLY:
1815 bfa_ioc_getattr_reply(ioc);
1816 break;
1817
1818 default:
1819 BUG_ON(1);
1820 }
1821 }
1822
1823 /**
1824 * IOC attach time initialization and setup.
1825 *
1826 * @param[in] ioc memory for IOC
1827 * @param[in] bfa driver instance structure
1828 */
1829 void
1830 bfa_nw_ioc_attach(struct bfa_ioc *ioc, void *bfa, struct bfa_ioc_cbfn *cbfn)
1831 {
1832 ioc->bfa = bfa;
1833 ioc->cbfn = cbfn;
1834 ioc->fcmode = false;
1835 ioc->pllinit = false;
1836 ioc->dbg_fwsave_once = true;
1837 ioc->iocpf.ioc = ioc;
1838
1839 bfa_ioc_mbox_attach(ioc);
1840 INIT_LIST_HEAD(&ioc->hb_notify_q);
1841
1842 bfa_fsm_set_state(ioc, bfa_ioc_sm_uninit);
1843 bfa_fsm_send_event(ioc, IOC_E_RESET);
1844 }
1845
1846 /**
1847 * Driver detach time IOC cleanup.
1848 */
1849 void
1850 bfa_nw_ioc_detach(struct bfa_ioc *ioc)
1851 {
1852 bfa_fsm_send_event(ioc, IOC_E_DETACH);
1853 }
1854
1855 /**
1856 * Setup IOC PCI properties.
1857 *
1858 * @param[in] pcidev PCI device information for this IOC
1859 */
1860 void
1861 bfa_nw_ioc_pci_init(struct bfa_ioc *ioc, struct bfa_pcidev *pcidev,
1862 enum bfi_mclass mc)
1863 {
1864 ioc->ioc_mc = mc;
1865 ioc->pcidev = *pcidev;
1866 ioc->ctdev = bfa_asic_id_ct(ioc->pcidev.device_id);
1867 ioc->cna = ioc->ctdev && !ioc->fcmode;
1868
1869 bfa_nw_ioc_set_ct_hwif(ioc);
1870
1871 bfa_ioc_map_port(ioc);
1872 bfa_ioc_reg_init(ioc);
1873 }
1874
1875 /**
1876 * Initialize IOC dma memory
1877 *
1878 * @param[in] dm_kva kernel virtual address of IOC dma memory
1879 * @param[in] dm_pa physical address of IOC dma memory
1880 */
1881 void
1882 bfa_nw_ioc_mem_claim(struct bfa_ioc *ioc, u8 *dm_kva, u64 dm_pa)
1883 {
1884 /**
1885 * dma memory for firmware attribute
1886 */
1887 ioc->attr_dma.kva = dm_kva;
1888 ioc->attr_dma.pa = dm_pa;
1889 ioc->attr = (struct bfi_ioc_attr *) dm_kva;
1890 }
1891
1892 /**
1893 * Return size of dma memory required.
1894 */
1895 u32
1896 bfa_nw_ioc_meminfo(void)
1897 {
1898 return roundup(sizeof(struct bfi_ioc_attr), BFA_DMA_ALIGN_SZ);
1899 }
1900
1901 void
1902 bfa_nw_ioc_enable(struct bfa_ioc *ioc)
1903 {
1904 bfa_ioc_stats(ioc, ioc_enables);
1905 ioc->dbg_fwsave_once = true;
1906
1907 bfa_fsm_send_event(ioc, IOC_E_ENABLE);
1908 }
1909
1910 void
1911 bfa_nw_ioc_disable(struct bfa_ioc *ioc)
1912 {
1913 bfa_ioc_stats(ioc, ioc_disables);
1914 bfa_fsm_send_event(ioc, IOC_E_DISABLE);
1915 }
1916
1917 static u32
1918 bfa_ioc_smem_pgnum(struct bfa_ioc *ioc, u32 fmaddr)
1919 {
1920 return PSS_SMEM_PGNUM(ioc->ioc_regs.smem_pg0, fmaddr);
1921 }
1922
1923 static u32
1924 bfa_ioc_smem_pgoff(struct bfa_ioc *ioc, u32 fmaddr)
1925 {
1926 return PSS_SMEM_PGOFF(fmaddr);
1927 }
1928
1929 /**
1930 * Register mailbox message handler function, to be called by common modules
1931 */
1932 void
1933 bfa_nw_ioc_mbox_regisr(struct bfa_ioc *ioc, enum bfi_mclass mc,
1934 bfa_ioc_mbox_mcfunc_t cbfn, void *cbarg)
1935 {
1936 struct bfa_ioc_mbox_mod *mod = &ioc->mbox_mod;
1937
1938 mod->mbhdlr[mc].cbfn = cbfn;
1939 mod->mbhdlr[mc].cbarg = cbarg;
1940 }
1941
1942 /**
1943 * Queue a mailbox command request to firmware. Waits if mailbox is busy.
1944 * Responsibility of caller to serialize
1945 *
1946 * @param[in] ioc IOC instance
1947 * @param[i] cmd Mailbox command
1948 */
1949 void
1950 bfa_nw_ioc_mbox_queue(struct bfa_ioc *ioc, struct bfa_mbox_cmd *cmd)
1951 {
1952 struct bfa_ioc_mbox_mod *mod = &ioc->mbox_mod;
1953 u32 stat;
1954
1955 /**
1956 * If a previous command is pending, queue new command
1957 */
1958 if (!list_empty(&mod->cmd_q)) {
1959 list_add_tail(&cmd->qe, &mod->cmd_q);
1960 return;
1961 }
1962
1963 /**
1964 * If mailbox is busy, queue command for poll timer
1965 */
1966 stat = readl(ioc->ioc_regs.hfn_mbox_cmd);
1967 if (stat) {
1968 list_add_tail(&cmd->qe, &mod->cmd_q);
1969 return;
1970 }
1971
1972 /**
1973 * mailbox is free -- queue command to firmware
1974 */
1975 bfa_ioc_mbox_send(ioc, cmd->msg, sizeof(cmd->msg));
1976 }
1977
1978 /**
1979 * Handle mailbox interrupts
1980 */
1981 void
1982 bfa_nw_ioc_mbox_isr(struct bfa_ioc *ioc)
1983 {
1984 struct bfa_ioc_mbox_mod *mod = &ioc->mbox_mod;
1985 struct bfi_mbmsg m;
1986 int mc;
1987
1988 bfa_ioc_msgget(ioc, &m);
1989
1990 /**
1991 * Treat IOC message class as special.
1992 */
1993 mc = m.mh.msg_class;
1994 if (mc == BFI_MC_IOC) {
1995 bfa_ioc_isr(ioc, &m);
1996 return;
1997 }
1998
1999 if ((mc >= BFI_MC_MAX) || (mod->mbhdlr[mc].cbfn == NULL))
2000 return;
2001
2002 mod->mbhdlr[mc].cbfn(mod->mbhdlr[mc].cbarg, &m);
2003 }
2004
2005 void
2006 bfa_nw_ioc_error_isr(struct bfa_ioc *ioc)
2007 {
2008 bfa_fsm_send_event(ioc, IOC_E_HWERROR);
2009 }
2010
2011 /**
2012 * Add to IOC heartbeat failure notification queue. To be used by common
2013 * modules such as cee, port, diag.
2014 */
2015 void
2016 bfa_nw_ioc_hbfail_register(struct bfa_ioc *ioc,
2017 struct bfa_ioc_hbfail_notify *notify)
2018 {
2019 list_add_tail(&notify->qe, &ioc->hb_notify_q);
2020 }
2021
2022 #define BFA_MFG_NAME "Brocade"
2023 static void
2024 bfa_ioc_get_adapter_attr(struct bfa_ioc *ioc,
2025 struct bfa_adapter_attr *ad_attr)
2026 {
2027 struct bfi_ioc_attr *ioc_attr;
2028
2029 ioc_attr = ioc->attr;
2030
2031 bfa_ioc_get_adapter_serial_num(ioc, ad_attr->serial_num);
2032 bfa_ioc_get_adapter_fw_ver(ioc, ad_attr->fw_ver);
2033 bfa_ioc_get_adapter_optrom_ver(ioc, ad_attr->optrom_ver);
2034 bfa_ioc_get_adapter_manufacturer(ioc, ad_attr->manufacturer);
2035 memcpy(&ad_attr->vpd, &ioc_attr->vpd,
2036 sizeof(struct bfa_mfg_vpd));
2037
2038 ad_attr->nports = bfa_ioc_get_nports(ioc);
2039 ad_attr->max_speed = bfa_ioc_speed_sup(ioc);
2040
2041 bfa_ioc_get_adapter_model(ioc, ad_attr->model);
2042 /* For now, model descr uses same model string */
2043 bfa_ioc_get_adapter_model(ioc, ad_attr->model_descr);
2044
2045 ad_attr->card_type = ioc_attr->card_type;
2046 ad_attr->is_mezz = bfa_mfg_is_mezz(ioc_attr->card_type);
2047
2048 if (BFI_ADAPTER_IS_SPECIAL(ioc_attr->adapter_prop))
2049 ad_attr->prototype = 1;
2050 else
2051 ad_attr->prototype = 0;
2052
2053 ad_attr->pwwn = bfa_ioc_get_pwwn(ioc);
2054 ad_attr->mac = bfa_nw_ioc_get_mac(ioc);
2055
2056 ad_attr->pcie_gen = ioc_attr->pcie_gen;
2057 ad_attr->pcie_lanes = ioc_attr->pcie_lanes;
2058 ad_attr->pcie_lanes_orig = ioc_attr->pcie_lanes_orig;
2059 ad_attr->asic_rev = ioc_attr->asic_rev;
2060
2061 bfa_ioc_get_pci_chip_rev(ioc, ad_attr->hw_ver);
2062
2063 ad_attr->cna_capable = ioc->cna;
2064 ad_attr->trunk_capable = (ad_attr->nports > 1) && !ioc->cna;
2065 }
2066
2067 static enum bfa_ioc_type
2068 bfa_ioc_get_type(struct bfa_ioc *ioc)
2069 {
2070 if (!ioc->ctdev || ioc->fcmode)
2071 return BFA_IOC_TYPE_FC;
2072 else if (ioc->ioc_mc == BFI_MC_IOCFC)
2073 return BFA_IOC_TYPE_FCoE;
2074 else if (ioc->ioc_mc == BFI_MC_LL)
2075 return BFA_IOC_TYPE_LL;
2076 else {
2077 BUG_ON(!(ioc->ioc_mc == BFI_MC_LL));
2078 return BFA_IOC_TYPE_LL;
2079 }
2080 }
2081
2082 static void
2083 bfa_ioc_get_adapter_serial_num(struct bfa_ioc *ioc, char *serial_num)
2084 {
2085 memset(serial_num, 0, BFA_ADAPTER_SERIAL_NUM_LEN);
2086 memcpy(serial_num,
2087 (void *)ioc->attr->brcd_serialnum,
2088 BFA_ADAPTER_SERIAL_NUM_LEN);
2089 }
2090
2091 static void
2092 bfa_ioc_get_adapter_fw_ver(struct bfa_ioc *ioc, char *fw_ver)
2093 {
2094 memset(fw_ver, 0, BFA_VERSION_LEN);
2095 memcpy(fw_ver, ioc->attr->fw_version, BFA_VERSION_LEN);
2096 }
2097
2098 static void
2099 bfa_ioc_get_pci_chip_rev(struct bfa_ioc *ioc, char *chip_rev)
2100 {
2101 BUG_ON(!(chip_rev));
2102
2103 memset(chip_rev, 0, BFA_IOC_CHIP_REV_LEN);
2104
2105 chip_rev[0] = 'R';
2106 chip_rev[1] = 'e';
2107 chip_rev[2] = 'v';
2108 chip_rev[3] = '-';
2109 chip_rev[4] = ioc->attr->asic_rev;
2110 chip_rev[5] = '\0';
2111 }
2112
2113 static void
2114 bfa_ioc_get_adapter_optrom_ver(struct bfa_ioc *ioc, char *optrom_ver)
2115 {
2116 memset(optrom_ver, 0, BFA_VERSION_LEN);
2117 memcpy(optrom_ver, ioc->attr->optrom_version,
2118 BFA_VERSION_LEN);
2119 }
2120
2121 static void
2122 bfa_ioc_get_adapter_manufacturer(struct bfa_ioc *ioc, char *manufacturer)
2123 {
2124 memset(manufacturer, 0, BFA_ADAPTER_MFG_NAME_LEN);
2125 memcpy(manufacturer, BFA_MFG_NAME, BFA_ADAPTER_MFG_NAME_LEN);
2126 }
2127
2128 static void
2129 bfa_ioc_get_adapter_model(struct bfa_ioc *ioc, char *model)
2130 {
2131 struct bfi_ioc_attr *ioc_attr;
2132
2133 BUG_ON(!(model));
2134 memset(model, 0, BFA_ADAPTER_MODEL_NAME_LEN);
2135
2136 ioc_attr = ioc->attr;
2137
2138 /**
2139 * model name
2140 */
2141 snprintf(model, BFA_ADAPTER_MODEL_NAME_LEN, "%s-%u",
2142 BFA_MFG_NAME, ioc_attr->card_type);
2143 }
2144
2145 static enum bfa_ioc_state
2146 bfa_ioc_get_state(struct bfa_ioc *ioc)
2147 {
2148 enum bfa_iocpf_state iocpf_st;
2149 enum bfa_ioc_state ioc_st = bfa_sm_to_state(ioc_sm_table, ioc->fsm);
2150
2151 if (ioc_st == BFA_IOC_ENABLING ||
2152 ioc_st == BFA_IOC_FAIL || ioc_st == BFA_IOC_INITFAIL) {
2153
2154 iocpf_st = bfa_sm_to_state(iocpf_sm_table, ioc->iocpf.fsm);
2155
2156 switch (iocpf_st) {
2157 case BFA_IOCPF_SEMWAIT:
2158 ioc_st = BFA_IOC_SEMWAIT;
2159 break;
2160
2161 case BFA_IOCPF_HWINIT:
2162 ioc_st = BFA_IOC_HWINIT;
2163 break;
2164
2165 case BFA_IOCPF_FWMISMATCH:
2166 ioc_st = BFA_IOC_FWMISMATCH;
2167 break;
2168
2169 case BFA_IOCPF_FAIL:
2170 ioc_st = BFA_IOC_FAIL;
2171 break;
2172
2173 case BFA_IOCPF_INITFAIL:
2174 ioc_st = BFA_IOC_INITFAIL;
2175 break;
2176
2177 default:
2178 break;
2179 }
2180 }
2181 return ioc_st;
2182 }
2183
2184 void
2185 bfa_nw_ioc_get_attr(struct bfa_ioc *ioc, struct bfa_ioc_attr *ioc_attr)
2186 {
2187 memset((void *)ioc_attr, 0, sizeof(struct bfa_ioc_attr));
2188
2189 ioc_attr->state = bfa_ioc_get_state(ioc);
2190 ioc_attr->port_id = ioc->port_id;
2191
2192 ioc_attr->ioc_type = bfa_ioc_get_type(ioc);
2193
2194 bfa_ioc_get_adapter_attr(ioc, &ioc_attr->adapter_attr);
2195
2196 ioc_attr->pci_attr.device_id = ioc->pcidev.device_id;
2197 ioc_attr->pci_attr.pcifn = ioc->pcidev.pci_func;
2198 bfa_ioc_get_pci_chip_rev(ioc, ioc_attr->pci_attr.chip_rev);
2199 }
2200
2201 /**
2202 * WWN public
2203 */
2204 static u64
2205 bfa_ioc_get_pwwn(struct bfa_ioc *ioc)
2206 {
2207 return ioc->attr->pwwn;
2208 }
2209
2210 mac_t
2211 bfa_nw_ioc_get_mac(struct bfa_ioc *ioc)
2212 {
2213 return ioc->attr->mac;
2214 }
2215
2216 /**
2217 * Firmware failure detected. Start recovery actions.
2218 */
2219 static void
2220 bfa_ioc_recover(struct bfa_ioc *ioc)
2221 {
2222 u16 bdf;
2223
2224 bdf = (ioc->pcidev.pci_slot << 8 | ioc->pcidev.pci_func << 3 |
2225 ioc->pcidev.device_id);
2226
2227 pr_crit("Firmware heartbeat failure at %d", bdf);
2228 BUG_ON(1);
2229 }
2230
2231 static void
2232 bfa_ioc_check_attr_wwns(struct bfa_ioc *ioc)
2233 {
2234 if (bfa_ioc_get_type(ioc) == BFA_IOC_TYPE_LL)
2235 return;
2236 }
2237
2238 /**
2239 * @dg hal_iocpf_pvt BFA IOC PF private functions
2240 * @{
2241 */
2242
2243 static void
2244 bfa_iocpf_enable(struct bfa_ioc *ioc)
2245 {
2246 bfa_fsm_send_event(&ioc->iocpf, IOCPF_E_ENABLE);
2247 }
2248
2249 static void
2250 bfa_iocpf_disable(struct bfa_ioc *ioc)
2251 {
2252 bfa_fsm_send_event(&ioc->iocpf, IOCPF_E_DISABLE);
2253 }
2254
2255 static void
2256 bfa_iocpf_fail(struct bfa_ioc *ioc)
2257 {
2258 bfa_fsm_send_event(&ioc->iocpf, IOCPF_E_FAIL);
2259 }
2260
2261 static void
2262 bfa_iocpf_initfail(struct bfa_ioc *ioc)
2263 {
2264 bfa_fsm_send_event(&ioc->iocpf, IOCPF_E_INITFAIL);
2265 }
2266
2267 static void
2268 bfa_iocpf_getattrfail(struct bfa_ioc *ioc)
2269 {
2270 bfa_fsm_send_event(&ioc->iocpf, IOCPF_E_GETATTRFAIL);
2271 }
2272
2273 static void
2274 bfa_iocpf_stop(struct bfa_ioc *ioc)
2275 {
2276 bfa_fsm_send_event(&ioc->iocpf, IOCPF_E_STOP);
2277 }
2278
2279 void
2280 bfa_nw_iocpf_timeout(void *ioc_arg)
2281 {
2282 struct bfa_ioc *ioc = (struct bfa_ioc *) ioc_arg;
2283
2284 bfa_fsm_send_event(&ioc->iocpf, IOCPF_E_TIMEOUT);
2285 }
2286
2287 void
2288 bfa_nw_iocpf_sem_timeout(void *ioc_arg)
2289 {
2290 struct bfa_ioc *ioc = (struct bfa_ioc *) ioc_arg;
2291
2292 bfa_ioc_hw_sem_get(ioc);
2293 }
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