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Merge tag 'pci-v3.15-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaa...
[deliverable/linux.git] / drivers / net / ethernet / brocade / bna / bfa_ioc.c
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 "bfi_reg.h"
21 #include "bfa_defs.h"
22
23 /* IOC local definitions */
24
25 #define bfa_ioc_state_disabled(__sm) \
26 (((__sm) == BFI_IOC_UNINIT) || \
27 ((__sm) == BFI_IOC_INITING) || \
28 ((__sm) == BFI_IOC_HWINIT) || \
29 ((__sm) == BFI_IOC_DISABLED) || \
30 ((__sm) == BFI_IOC_FAIL) || \
31 ((__sm) == BFI_IOC_CFG_DISABLED))
32
33 /* Asic specific macros : see bfa_hw_cb.c and bfa_hw_ct.c for details. */
34
35 #define bfa_ioc_firmware_lock(__ioc) \
36 ((__ioc)->ioc_hwif->ioc_firmware_lock(__ioc))
37 #define bfa_ioc_firmware_unlock(__ioc) \
38 ((__ioc)->ioc_hwif->ioc_firmware_unlock(__ioc))
39 #define bfa_ioc_reg_init(__ioc) ((__ioc)->ioc_hwif->ioc_reg_init(__ioc))
40 #define bfa_ioc_map_port(__ioc) ((__ioc)->ioc_hwif->ioc_map_port(__ioc))
41 #define bfa_ioc_notify_fail(__ioc) \
42 ((__ioc)->ioc_hwif->ioc_notify_fail(__ioc))
43 #define bfa_ioc_sync_start(__ioc) \
44 ((__ioc)->ioc_hwif->ioc_sync_start(__ioc))
45 #define bfa_ioc_sync_join(__ioc) \
46 ((__ioc)->ioc_hwif->ioc_sync_join(__ioc))
47 #define bfa_ioc_sync_leave(__ioc) \
48 ((__ioc)->ioc_hwif->ioc_sync_leave(__ioc))
49 #define bfa_ioc_sync_ack(__ioc) \
50 ((__ioc)->ioc_hwif->ioc_sync_ack(__ioc))
51 #define bfa_ioc_sync_complete(__ioc) \
52 ((__ioc)->ioc_hwif->ioc_sync_complete(__ioc))
53 #define bfa_ioc_set_cur_ioc_fwstate(__ioc, __fwstate) \
54 ((__ioc)->ioc_hwif->ioc_set_fwstate(__ioc, __fwstate))
55 #define bfa_ioc_get_cur_ioc_fwstate(__ioc) \
56 ((__ioc)->ioc_hwif->ioc_get_fwstate(__ioc))
57 #define bfa_ioc_set_alt_ioc_fwstate(__ioc, __fwstate) \
58 ((__ioc)->ioc_hwif->ioc_set_alt_fwstate(__ioc, __fwstate))
59 #define bfa_ioc_get_alt_ioc_fwstate(__ioc) \
60 ((__ioc)->ioc_hwif->ioc_get_alt_fwstate(__ioc))
61
62 #define bfa_ioc_mbox_cmd_pending(__ioc) \
63 (!list_empty(&((__ioc)->mbox_mod.cmd_q)) || \
64 readl((__ioc)->ioc_regs.hfn_mbox_cmd))
65
66 static bool bfa_nw_auto_recover = true;
67
68 /*
69 * forward declarations
70 */
71 static void bfa_ioc_hw_sem_init(struct bfa_ioc *ioc);
72 static void bfa_ioc_hw_sem_get(struct bfa_ioc *ioc);
73 static void bfa_ioc_hw_sem_get_cancel(struct bfa_ioc *ioc);
74 static void bfa_ioc_hwinit(struct bfa_ioc *ioc, bool force);
75 static void bfa_ioc_poll_fwinit(struct bfa_ioc *ioc);
76 static void bfa_ioc_send_enable(struct bfa_ioc *ioc);
77 static void bfa_ioc_send_disable(struct bfa_ioc *ioc);
78 static void bfa_ioc_send_getattr(struct bfa_ioc *ioc);
79 static void bfa_ioc_hb_monitor(struct bfa_ioc *ioc);
80 static void bfa_ioc_hb_stop(struct bfa_ioc *ioc);
81 static void bfa_ioc_reset(struct bfa_ioc *ioc, bool force);
82 static void bfa_ioc_mbox_poll(struct bfa_ioc *ioc);
83 static void bfa_ioc_mbox_flush(struct bfa_ioc *ioc);
84 static void bfa_ioc_recover(struct bfa_ioc *ioc);
85 static void bfa_ioc_event_notify(struct bfa_ioc *, enum bfa_ioc_event);
86 static void bfa_ioc_disable_comp(struct bfa_ioc *ioc);
87 static void bfa_ioc_lpu_stop(struct bfa_ioc *ioc);
88 static void bfa_nw_ioc_debug_save_ftrc(struct bfa_ioc *ioc);
89 static void bfa_ioc_fail_notify(struct bfa_ioc *ioc);
90 static void bfa_ioc_pf_enabled(struct bfa_ioc *ioc);
91 static void bfa_ioc_pf_disabled(struct bfa_ioc *ioc);
92 static void bfa_ioc_pf_failed(struct bfa_ioc *ioc);
93 static void bfa_ioc_pf_hwfailed(struct bfa_ioc *ioc);
94 static void bfa_ioc_pf_fwmismatch(struct bfa_ioc *ioc);
95 static enum bfa_status bfa_ioc_boot(struct bfa_ioc *ioc,
96 enum bfi_fwboot_type boot_type, u32 boot_param);
97 static u32 bfa_ioc_smem_pgnum(struct bfa_ioc *ioc, u32 fmaddr);
98 static void bfa_ioc_get_adapter_serial_num(struct bfa_ioc *ioc,
99 char *serial_num);
100 static void bfa_ioc_get_adapter_fw_ver(struct bfa_ioc *ioc,
101 char *fw_ver);
102 static void bfa_ioc_get_pci_chip_rev(struct bfa_ioc *ioc,
103 char *chip_rev);
104 static void bfa_ioc_get_adapter_optrom_ver(struct bfa_ioc *ioc,
105 char *optrom_ver);
106 static void bfa_ioc_get_adapter_manufacturer(struct bfa_ioc *ioc,
107 char *manufacturer);
108 static void bfa_ioc_get_adapter_model(struct bfa_ioc *ioc, char *model);
109 static u64 bfa_ioc_get_pwwn(struct bfa_ioc *ioc);
110
111 /* IOC state machine definitions/declarations */
112 enum ioc_event {
113 IOC_E_RESET = 1, /*!< IOC reset request */
114 IOC_E_ENABLE = 2, /*!< IOC enable request */
115 IOC_E_DISABLE = 3, /*!< IOC disable request */
116 IOC_E_DETACH = 4, /*!< driver detach cleanup */
117 IOC_E_ENABLED = 5, /*!< f/w enabled */
118 IOC_E_FWRSP_GETATTR = 6, /*!< IOC get attribute response */
119 IOC_E_DISABLED = 7, /*!< f/w disabled */
120 IOC_E_PFFAILED = 8, /*!< failure notice by iocpf sm */
121 IOC_E_HBFAIL = 9, /*!< heartbeat failure */
122 IOC_E_HWERROR = 10, /*!< hardware error interrupt */
123 IOC_E_TIMEOUT = 11, /*!< timeout */
124 IOC_E_HWFAILED = 12, /*!< PCI mapping failure notice */
125 };
126
127 bfa_fsm_state_decl(bfa_ioc, uninit, struct bfa_ioc, enum ioc_event);
128 bfa_fsm_state_decl(bfa_ioc, reset, struct bfa_ioc, enum ioc_event);
129 bfa_fsm_state_decl(bfa_ioc, enabling, struct bfa_ioc, enum ioc_event);
130 bfa_fsm_state_decl(bfa_ioc, getattr, struct bfa_ioc, enum ioc_event);
131 bfa_fsm_state_decl(bfa_ioc, op, struct bfa_ioc, enum ioc_event);
132 bfa_fsm_state_decl(bfa_ioc, fail_retry, struct bfa_ioc, enum ioc_event);
133 bfa_fsm_state_decl(bfa_ioc, fail, struct bfa_ioc, enum ioc_event);
134 bfa_fsm_state_decl(bfa_ioc, disabling, struct bfa_ioc, enum ioc_event);
135 bfa_fsm_state_decl(bfa_ioc, disabled, struct bfa_ioc, enum ioc_event);
136 bfa_fsm_state_decl(bfa_ioc, hwfail, struct bfa_ioc, enum ioc_event);
137
138 static struct bfa_sm_table ioc_sm_table[] = {
139 {BFA_SM(bfa_ioc_sm_uninit), BFA_IOC_UNINIT},
140 {BFA_SM(bfa_ioc_sm_reset), BFA_IOC_RESET},
141 {BFA_SM(bfa_ioc_sm_enabling), BFA_IOC_ENABLING},
142 {BFA_SM(bfa_ioc_sm_getattr), BFA_IOC_GETATTR},
143 {BFA_SM(bfa_ioc_sm_op), BFA_IOC_OPERATIONAL},
144 {BFA_SM(bfa_ioc_sm_fail_retry), BFA_IOC_INITFAIL},
145 {BFA_SM(bfa_ioc_sm_fail), BFA_IOC_FAIL},
146 {BFA_SM(bfa_ioc_sm_disabling), BFA_IOC_DISABLING},
147 {BFA_SM(bfa_ioc_sm_disabled), BFA_IOC_DISABLED},
148 {BFA_SM(bfa_ioc_sm_hwfail), BFA_IOC_HWFAIL},
149 };
150
151 /*
152 * Forward declareations for iocpf state machine
153 */
154 static void bfa_iocpf_enable(struct bfa_ioc *ioc);
155 static void bfa_iocpf_disable(struct bfa_ioc *ioc);
156 static void bfa_iocpf_fail(struct bfa_ioc *ioc);
157 static void bfa_iocpf_initfail(struct bfa_ioc *ioc);
158 static void bfa_iocpf_getattrfail(struct bfa_ioc *ioc);
159 static void bfa_iocpf_stop(struct bfa_ioc *ioc);
160
161 /* IOCPF state machine events */
162 enum iocpf_event {
163 IOCPF_E_ENABLE = 1, /*!< IOCPF enable request */
164 IOCPF_E_DISABLE = 2, /*!< IOCPF disable request */
165 IOCPF_E_STOP = 3, /*!< stop on driver detach */
166 IOCPF_E_FWREADY = 4, /*!< f/w initialization done */
167 IOCPF_E_FWRSP_ENABLE = 5, /*!< enable f/w response */
168 IOCPF_E_FWRSP_DISABLE = 6, /*!< disable f/w response */
169 IOCPF_E_FAIL = 7, /*!< failure notice by ioc sm */
170 IOCPF_E_INITFAIL = 8, /*!< init fail notice by ioc sm */
171 IOCPF_E_GETATTRFAIL = 9, /*!< init fail notice by ioc sm */
172 IOCPF_E_SEMLOCKED = 10, /*!< h/w semaphore is locked */
173 IOCPF_E_TIMEOUT = 11, /*!< f/w response timeout */
174 IOCPF_E_SEM_ERROR = 12, /*!< h/w sem mapping error */
175 };
176
177 /* IOCPF states */
178 enum bfa_iocpf_state {
179 BFA_IOCPF_RESET = 1, /*!< IOC is in reset state */
180 BFA_IOCPF_SEMWAIT = 2, /*!< Waiting for IOC h/w semaphore */
181 BFA_IOCPF_HWINIT = 3, /*!< IOC h/w is being initialized */
182 BFA_IOCPF_READY = 4, /*!< IOCPF is initialized */
183 BFA_IOCPF_INITFAIL = 5, /*!< IOCPF failed */
184 BFA_IOCPF_FAIL = 6, /*!< IOCPF failed */
185 BFA_IOCPF_DISABLING = 7, /*!< IOCPF is being disabled */
186 BFA_IOCPF_DISABLED = 8, /*!< IOCPF is disabled */
187 BFA_IOCPF_FWMISMATCH = 9, /*!< IOC f/w different from drivers */
188 };
189
190 bfa_fsm_state_decl(bfa_iocpf, reset, struct bfa_iocpf, enum iocpf_event);
191 bfa_fsm_state_decl(bfa_iocpf, fwcheck, struct bfa_iocpf, enum iocpf_event);
192 bfa_fsm_state_decl(bfa_iocpf, mismatch, struct bfa_iocpf, enum iocpf_event);
193 bfa_fsm_state_decl(bfa_iocpf, semwait, struct bfa_iocpf, enum iocpf_event);
194 bfa_fsm_state_decl(bfa_iocpf, hwinit, struct bfa_iocpf, enum iocpf_event);
195 bfa_fsm_state_decl(bfa_iocpf, enabling, struct bfa_iocpf, enum iocpf_event);
196 bfa_fsm_state_decl(bfa_iocpf, ready, struct bfa_iocpf, enum iocpf_event);
197 bfa_fsm_state_decl(bfa_iocpf, initfail_sync, struct bfa_iocpf,
198 enum iocpf_event);
199 bfa_fsm_state_decl(bfa_iocpf, initfail, struct bfa_iocpf, enum iocpf_event);
200 bfa_fsm_state_decl(bfa_iocpf, fail_sync, struct bfa_iocpf, enum iocpf_event);
201 bfa_fsm_state_decl(bfa_iocpf, fail, struct bfa_iocpf, enum iocpf_event);
202 bfa_fsm_state_decl(bfa_iocpf, disabling, struct bfa_iocpf, enum iocpf_event);
203 bfa_fsm_state_decl(bfa_iocpf, disabling_sync, struct bfa_iocpf,
204 enum iocpf_event);
205 bfa_fsm_state_decl(bfa_iocpf, disabled, struct bfa_iocpf, enum iocpf_event);
206
207 static struct bfa_sm_table iocpf_sm_table[] = {
208 {BFA_SM(bfa_iocpf_sm_reset), BFA_IOCPF_RESET},
209 {BFA_SM(bfa_iocpf_sm_fwcheck), BFA_IOCPF_FWMISMATCH},
210 {BFA_SM(bfa_iocpf_sm_mismatch), BFA_IOCPF_FWMISMATCH},
211 {BFA_SM(bfa_iocpf_sm_semwait), BFA_IOCPF_SEMWAIT},
212 {BFA_SM(bfa_iocpf_sm_hwinit), BFA_IOCPF_HWINIT},
213 {BFA_SM(bfa_iocpf_sm_enabling), BFA_IOCPF_HWINIT},
214 {BFA_SM(bfa_iocpf_sm_ready), BFA_IOCPF_READY},
215 {BFA_SM(bfa_iocpf_sm_initfail_sync), BFA_IOCPF_INITFAIL},
216 {BFA_SM(bfa_iocpf_sm_initfail), BFA_IOCPF_INITFAIL},
217 {BFA_SM(bfa_iocpf_sm_fail_sync), BFA_IOCPF_FAIL},
218 {BFA_SM(bfa_iocpf_sm_fail), BFA_IOCPF_FAIL},
219 {BFA_SM(bfa_iocpf_sm_disabling), BFA_IOCPF_DISABLING},
220 {BFA_SM(bfa_iocpf_sm_disabling_sync), BFA_IOCPF_DISABLING},
221 {BFA_SM(bfa_iocpf_sm_disabled), BFA_IOCPF_DISABLED},
222 };
223
224 /* IOC State Machine */
225
226 /* Beginning state. IOC uninit state. */
227 static void
228 bfa_ioc_sm_uninit_entry(struct bfa_ioc *ioc)
229 {
230 }
231
232 /* IOC is in uninit state. */
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(event);
243 }
244 }
245
246 /* Reset entry actions -- initialize state machine */
247 static void
248 bfa_ioc_sm_reset_entry(struct bfa_ioc *ioc)
249 {
250 bfa_fsm_set_state(&ioc->iocpf, bfa_iocpf_sm_reset);
251 }
252
253 /* IOC is in reset state. */
254 static void
255 bfa_ioc_sm_reset(struct bfa_ioc *ioc, enum ioc_event event)
256 {
257 switch (event) {
258 case IOC_E_ENABLE:
259 bfa_fsm_set_state(ioc, bfa_ioc_sm_enabling);
260 break;
261
262 case IOC_E_DISABLE:
263 bfa_ioc_disable_comp(ioc);
264 break;
265
266 case IOC_E_DETACH:
267 bfa_fsm_set_state(ioc, bfa_ioc_sm_uninit);
268 break;
269
270 default:
271 bfa_sm_fault(event);
272 }
273 }
274
275 static void
276 bfa_ioc_sm_enabling_entry(struct bfa_ioc *ioc)
277 {
278 bfa_iocpf_enable(ioc);
279 }
280
281 /* Host IOC function is being enabled, awaiting response from firmware.
282 * Semaphore is acquired.
283 */
284 static void
285 bfa_ioc_sm_enabling(struct bfa_ioc *ioc, enum ioc_event event)
286 {
287 switch (event) {
288 case IOC_E_ENABLED:
289 bfa_fsm_set_state(ioc, bfa_ioc_sm_getattr);
290 break;
291
292 case IOC_E_PFFAILED:
293 /* !!! fall through !!! */
294 case IOC_E_HWERROR:
295 ioc->cbfn->enable_cbfn(ioc->bfa, BFA_STATUS_IOC_FAILURE);
296 bfa_fsm_set_state(ioc, bfa_ioc_sm_fail);
297 if (event != IOC_E_PFFAILED)
298 bfa_iocpf_initfail(ioc);
299 break;
300
301 case IOC_E_HWFAILED:
302 ioc->cbfn->enable_cbfn(ioc->bfa, BFA_STATUS_IOC_FAILURE);
303 bfa_fsm_set_state(ioc, bfa_ioc_sm_hwfail);
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(event);
320 }
321 }
322
323 /* Semaphore should be acquired for version check. */
324 static void
325 bfa_ioc_sm_getattr_entry(struct bfa_ioc *ioc)
326 {
327 mod_timer(&ioc->ioc_timer, jiffies +
328 msecs_to_jiffies(BFA_IOC_TOV));
329 bfa_ioc_send_getattr(ioc);
330 }
331
332 /* IOC configuration in progress. Timer is active. */
333 static void
334 bfa_ioc_sm_getattr(struct bfa_ioc *ioc, enum ioc_event event)
335 {
336 switch (event) {
337 case IOC_E_FWRSP_GETATTR:
338 del_timer(&ioc->ioc_timer);
339 bfa_fsm_set_state(ioc, bfa_ioc_sm_op);
340 break;
341
342 case IOC_E_PFFAILED:
343 case IOC_E_HWERROR:
344 del_timer(&ioc->ioc_timer);
345 /* fall through */
346 case IOC_E_TIMEOUT:
347 ioc->cbfn->enable_cbfn(ioc->bfa, BFA_STATUS_IOC_FAILURE);
348 bfa_fsm_set_state(ioc, bfa_ioc_sm_fail);
349 if (event != IOC_E_PFFAILED)
350 bfa_iocpf_getattrfail(ioc);
351 break;
352
353 case IOC_E_DISABLE:
354 del_timer(&ioc->ioc_timer);
355 bfa_fsm_set_state(ioc, bfa_ioc_sm_disabling);
356 break;
357
358 case IOC_E_ENABLE:
359 break;
360
361 default:
362 bfa_sm_fault(event);
363 }
364 }
365
366 static void
367 bfa_ioc_sm_op_entry(struct bfa_ioc *ioc)
368 {
369 ioc->cbfn->enable_cbfn(ioc->bfa, BFA_STATUS_OK);
370 bfa_ioc_event_notify(ioc, BFA_IOC_E_ENABLED);
371 bfa_ioc_hb_monitor(ioc);
372 }
373
374 static void
375 bfa_ioc_sm_op(struct bfa_ioc *ioc, enum ioc_event event)
376 {
377 switch (event) {
378 case IOC_E_ENABLE:
379 break;
380
381 case IOC_E_DISABLE:
382 bfa_ioc_hb_stop(ioc);
383 bfa_fsm_set_state(ioc, bfa_ioc_sm_disabling);
384 break;
385
386 case IOC_E_PFFAILED:
387 case IOC_E_HWERROR:
388 bfa_ioc_hb_stop(ioc);
389 /* !!! fall through !!! */
390 case IOC_E_HBFAIL:
391 if (ioc->iocpf.auto_recover)
392 bfa_fsm_set_state(ioc, bfa_ioc_sm_fail_retry);
393 else
394 bfa_fsm_set_state(ioc, bfa_ioc_sm_fail);
395
396 bfa_ioc_fail_notify(ioc);
397
398 if (event != IOC_E_PFFAILED)
399 bfa_iocpf_fail(ioc);
400 break;
401
402 default:
403 bfa_sm_fault(event);
404 }
405 }
406
407 static void
408 bfa_ioc_sm_disabling_entry(struct bfa_ioc *ioc)
409 {
410 bfa_iocpf_disable(ioc);
411 }
412
413 /* IOC is being disabled */
414 static void
415 bfa_ioc_sm_disabling(struct bfa_ioc *ioc, enum ioc_event event)
416 {
417 switch (event) {
418 case IOC_E_DISABLED:
419 bfa_fsm_set_state(ioc, bfa_ioc_sm_disabled);
420 break;
421
422 case IOC_E_HWERROR:
423 /*
424 * No state change. Will move to disabled state
425 * after iocpf sm completes failure processing and
426 * moves to disabled state.
427 */
428 bfa_iocpf_fail(ioc);
429 break;
430
431 case IOC_E_HWFAILED:
432 bfa_fsm_set_state(ioc, bfa_ioc_sm_hwfail);
433 bfa_ioc_disable_comp(ioc);
434 break;
435
436 default:
437 bfa_sm_fault(event);
438 }
439 }
440
441 /* IOC disable completion entry. */
442 static void
443 bfa_ioc_sm_disabled_entry(struct bfa_ioc *ioc)
444 {
445 bfa_ioc_disable_comp(ioc);
446 }
447
448 static void
449 bfa_ioc_sm_disabled(struct bfa_ioc *ioc, enum ioc_event event)
450 {
451 switch (event) {
452 case IOC_E_ENABLE:
453 bfa_fsm_set_state(ioc, bfa_ioc_sm_enabling);
454 break;
455
456 case IOC_E_DISABLE:
457 ioc->cbfn->disable_cbfn(ioc->bfa);
458 break;
459
460 case IOC_E_DETACH:
461 bfa_fsm_set_state(ioc, bfa_ioc_sm_uninit);
462 bfa_iocpf_stop(ioc);
463 break;
464
465 default:
466 bfa_sm_fault(event);
467 }
468 }
469
470 static void
471 bfa_ioc_sm_fail_retry_entry(struct bfa_ioc *ioc)
472 {
473 }
474
475 /* Hardware initialization retry. */
476 static void
477 bfa_ioc_sm_fail_retry(struct bfa_ioc *ioc, enum ioc_event event)
478 {
479 switch (event) {
480 case IOC_E_ENABLED:
481 bfa_fsm_set_state(ioc, bfa_ioc_sm_getattr);
482 break;
483
484 case IOC_E_PFFAILED:
485 case IOC_E_HWERROR:
486 /**
487 * Initialization retry failed.
488 */
489 ioc->cbfn->enable_cbfn(ioc->bfa, BFA_STATUS_IOC_FAILURE);
490 bfa_fsm_set_state(ioc, bfa_ioc_sm_fail);
491 if (event != IOC_E_PFFAILED)
492 bfa_iocpf_initfail(ioc);
493 break;
494
495 case IOC_E_HWFAILED:
496 ioc->cbfn->enable_cbfn(ioc->bfa, BFA_STATUS_IOC_FAILURE);
497 bfa_fsm_set_state(ioc, bfa_ioc_sm_hwfail);
498 break;
499
500 case IOC_E_ENABLE:
501 break;
502
503 case IOC_E_DISABLE:
504 bfa_fsm_set_state(ioc, bfa_ioc_sm_disabling);
505 break;
506
507 case IOC_E_DETACH:
508 bfa_fsm_set_state(ioc, bfa_ioc_sm_uninit);
509 bfa_iocpf_stop(ioc);
510 break;
511
512 default:
513 bfa_sm_fault(event);
514 }
515 }
516
517 static void
518 bfa_ioc_sm_fail_entry(struct bfa_ioc *ioc)
519 {
520 }
521
522 /* IOC failure. */
523 static void
524 bfa_ioc_sm_fail(struct bfa_ioc *ioc, enum ioc_event event)
525 {
526 switch (event) {
527 case IOC_E_ENABLE:
528 ioc->cbfn->enable_cbfn(ioc->bfa, BFA_STATUS_IOC_FAILURE);
529 break;
530
531 case IOC_E_DISABLE:
532 bfa_fsm_set_state(ioc, bfa_ioc_sm_disabling);
533 break;
534
535 case IOC_E_DETACH:
536 bfa_fsm_set_state(ioc, bfa_ioc_sm_uninit);
537 bfa_iocpf_stop(ioc);
538 break;
539
540 case IOC_E_HWERROR:
541 /* HB failure notification, ignore. */
542 break;
543
544 default:
545 bfa_sm_fault(event);
546 }
547 }
548
549 static void
550 bfa_ioc_sm_hwfail_entry(struct bfa_ioc *ioc)
551 {
552 }
553
554 /* IOC failure. */
555 static void
556 bfa_ioc_sm_hwfail(struct bfa_ioc *ioc, enum ioc_event event)
557 {
558 switch (event) {
559
560 case IOC_E_ENABLE:
561 ioc->cbfn->enable_cbfn(ioc->bfa, BFA_STATUS_IOC_FAILURE);
562 break;
563
564 case IOC_E_DISABLE:
565 ioc->cbfn->disable_cbfn(ioc->bfa);
566 break;
567
568 case IOC_E_DETACH:
569 bfa_fsm_set_state(ioc, bfa_ioc_sm_uninit);
570 break;
571
572 default:
573 bfa_sm_fault(event);
574 }
575 }
576
577 /* IOCPF State Machine */
578
579 /* Reset entry actions -- initialize state machine */
580 static void
581 bfa_iocpf_sm_reset_entry(struct bfa_iocpf *iocpf)
582 {
583 iocpf->fw_mismatch_notified = false;
584 iocpf->auto_recover = bfa_nw_auto_recover;
585 }
586
587 /* Beginning state. IOC is in reset state. */
588 static void
589 bfa_iocpf_sm_reset(struct bfa_iocpf *iocpf, enum iocpf_event event)
590 {
591 switch (event) {
592 case IOCPF_E_ENABLE:
593 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_fwcheck);
594 break;
595
596 case IOCPF_E_STOP:
597 break;
598
599 default:
600 bfa_sm_fault(event);
601 }
602 }
603
604 /* Semaphore should be acquired for version check. */
605 static void
606 bfa_iocpf_sm_fwcheck_entry(struct bfa_iocpf *iocpf)
607 {
608 bfa_ioc_hw_sem_init(iocpf->ioc);
609 bfa_ioc_hw_sem_get(iocpf->ioc);
610 }
611
612 /* Awaiting h/w semaphore to continue with version check. */
613 static void
614 bfa_iocpf_sm_fwcheck(struct bfa_iocpf *iocpf, enum iocpf_event event)
615 {
616 struct bfa_ioc *ioc = iocpf->ioc;
617
618 switch (event) {
619 case IOCPF_E_SEMLOCKED:
620 if (bfa_ioc_firmware_lock(ioc)) {
621 if (bfa_ioc_sync_start(ioc)) {
622 bfa_ioc_sync_join(ioc);
623 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_hwinit);
624 } else {
625 bfa_ioc_firmware_unlock(ioc);
626 bfa_nw_ioc_hw_sem_release(ioc);
627 mod_timer(&ioc->sem_timer, jiffies +
628 msecs_to_jiffies(BFA_IOC_HWSEM_TOV));
629 }
630 } else {
631 bfa_nw_ioc_hw_sem_release(ioc);
632 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_mismatch);
633 }
634 break;
635
636 case IOCPF_E_SEM_ERROR:
637 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_fail);
638 bfa_ioc_pf_hwfailed(ioc);
639 break;
640
641 case IOCPF_E_DISABLE:
642 bfa_ioc_hw_sem_get_cancel(ioc);
643 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_reset);
644 bfa_ioc_pf_disabled(ioc);
645 break;
646
647 case IOCPF_E_STOP:
648 bfa_ioc_hw_sem_get_cancel(ioc);
649 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_reset);
650 break;
651
652 default:
653 bfa_sm_fault(event);
654 }
655 }
656
657 /* Notify enable completion callback */
658 static void
659 bfa_iocpf_sm_mismatch_entry(struct bfa_iocpf *iocpf)
660 {
661 /* Call only the first time sm enters fwmismatch state. */
662 if (!iocpf->fw_mismatch_notified)
663 bfa_ioc_pf_fwmismatch(iocpf->ioc);
664
665 iocpf->fw_mismatch_notified = true;
666 mod_timer(&(iocpf->ioc)->iocpf_timer, jiffies +
667 msecs_to_jiffies(BFA_IOC_TOV));
668 }
669
670 /* Awaiting firmware version match. */
671 static void
672 bfa_iocpf_sm_mismatch(struct bfa_iocpf *iocpf, enum iocpf_event event)
673 {
674 struct bfa_ioc *ioc = iocpf->ioc;
675
676 switch (event) {
677 case IOCPF_E_TIMEOUT:
678 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_fwcheck);
679 break;
680
681 case IOCPF_E_DISABLE:
682 del_timer(&ioc->iocpf_timer);
683 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_reset);
684 bfa_ioc_pf_disabled(ioc);
685 break;
686
687 case IOCPF_E_STOP:
688 del_timer(&ioc->iocpf_timer);
689 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_reset);
690 break;
691
692 default:
693 bfa_sm_fault(event);
694 }
695 }
696
697 /* Request for semaphore. */
698 static void
699 bfa_iocpf_sm_semwait_entry(struct bfa_iocpf *iocpf)
700 {
701 bfa_ioc_hw_sem_get(iocpf->ioc);
702 }
703
704 /* Awaiting semaphore for h/w initialzation. */
705 static void
706 bfa_iocpf_sm_semwait(struct bfa_iocpf *iocpf, enum iocpf_event event)
707 {
708 struct bfa_ioc *ioc = iocpf->ioc;
709
710 switch (event) {
711 case IOCPF_E_SEMLOCKED:
712 if (bfa_ioc_sync_complete(ioc)) {
713 bfa_ioc_sync_join(ioc);
714 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_hwinit);
715 } else {
716 bfa_nw_ioc_hw_sem_release(ioc);
717 mod_timer(&ioc->sem_timer, jiffies +
718 msecs_to_jiffies(BFA_IOC_HWSEM_TOV));
719 }
720 break;
721
722 case IOCPF_E_SEM_ERROR:
723 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_fail);
724 bfa_ioc_pf_hwfailed(ioc);
725 break;
726
727 case IOCPF_E_DISABLE:
728 bfa_ioc_hw_sem_get_cancel(ioc);
729 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_disabling_sync);
730 break;
731
732 default:
733 bfa_sm_fault(event);
734 }
735 }
736
737 static void
738 bfa_iocpf_sm_hwinit_entry(struct bfa_iocpf *iocpf)
739 {
740 iocpf->poll_time = 0;
741 bfa_ioc_reset(iocpf->ioc, false);
742 }
743
744 /* Hardware is being initialized. Interrupts are enabled.
745 * Holding hardware semaphore lock.
746 */
747 static void
748 bfa_iocpf_sm_hwinit(struct bfa_iocpf *iocpf, enum iocpf_event event)
749 {
750 struct bfa_ioc *ioc = iocpf->ioc;
751
752 switch (event) {
753 case IOCPF_E_FWREADY:
754 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_enabling);
755 break;
756
757 case IOCPF_E_TIMEOUT:
758 bfa_nw_ioc_hw_sem_release(ioc);
759 bfa_ioc_pf_failed(ioc);
760 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_initfail_sync);
761 break;
762
763 case IOCPF_E_DISABLE:
764 del_timer(&ioc->iocpf_timer);
765 bfa_ioc_sync_leave(ioc);
766 bfa_nw_ioc_hw_sem_release(ioc);
767 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_disabled);
768 break;
769
770 default:
771 bfa_sm_fault(event);
772 }
773 }
774
775 static void
776 bfa_iocpf_sm_enabling_entry(struct bfa_iocpf *iocpf)
777 {
778 mod_timer(&(iocpf->ioc)->iocpf_timer, jiffies +
779 msecs_to_jiffies(BFA_IOC_TOV));
780 /**
781 * Enable Interrupts before sending fw IOC ENABLE cmd.
782 */
783 iocpf->ioc->cbfn->reset_cbfn(iocpf->ioc->bfa);
784 bfa_ioc_send_enable(iocpf->ioc);
785 }
786
787 /* Host IOC function is being enabled, awaiting response from firmware.
788 * Semaphore is acquired.
789 */
790 static void
791 bfa_iocpf_sm_enabling(struct bfa_iocpf *iocpf, enum iocpf_event event)
792 {
793 struct bfa_ioc *ioc = iocpf->ioc;
794
795 switch (event) {
796 case IOCPF_E_FWRSP_ENABLE:
797 del_timer(&ioc->iocpf_timer);
798 bfa_nw_ioc_hw_sem_release(ioc);
799 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_ready);
800 break;
801
802 case IOCPF_E_INITFAIL:
803 del_timer(&ioc->iocpf_timer);
804 /*
805 * !!! fall through !!!
806 */
807 case IOCPF_E_TIMEOUT:
808 bfa_nw_ioc_hw_sem_release(ioc);
809 if (event == IOCPF_E_TIMEOUT)
810 bfa_ioc_pf_failed(ioc);
811 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_initfail_sync);
812 break;
813
814 case IOCPF_E_DISABLE:
815 del_timer(&ioc->iocpf_timer);
816 bfa_nw_ioc_hw_sem_release(ioc);
817 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_disabling);
818 break;
819
820 default:
821 bfa_sm_fault(event);
822 }
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 switch (event) {
835 case IOCPF_E_DISABLE:
836 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_disabling);
837 break;
838
839 case IOCPF_E_GETATTRFAIL:
840 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_initfail_sync);
841 break;
842
843 case IOCPF_E_FAIL:
844 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_fail_sync);
845 break;
846
847 default:
848 bfa_sm_fault(event);
849 }
850 }
851
852 static void
853 bfa_iocpf_sm_disabling_entry(struct bfa_iocpf *iocpf)
854 {
855 mod_timer(&(iocpf->ioc)->iocpf_timer, jiffies +
856 msecs_to_jiffies(BFA_IOC_TOV));
857 bfa_ioc_send_disable(iocpf->ioc);
858 }
859
860 /* IOC is being disabled */
861 static void
862 bfa_iocpf_sm_disabling(struct bfa_iocpf *iocpf, enum iocpf_event event)
863 {
864 struct bfa_ioc *ioc = iocpf->ioc;
865
866 switch (event) {
867 case IOCPF_E_FWRSP_DISABLE:
868 del_timer(&ioc->iocpf_timer);
869 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_disabling_sync);
870 break;
871
872 case IOCPF_E_FAIL:
873 del_timer(&ioc->iocpf_timer);
874 /*
875 * !!! fall through !!!
876 */
877
878 case IOCPF_E_TIMEOUT:
879 bfa_ioc_set_cur_ioc_fwstate(ioc, BFI_IOC_FAIL);
880 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_disabling_sync);
881 break;
882
883 case IOCPF_E_FWRSP_ENABLE:
884 break;
885
886 default:
887 bfa_sm_fault(event);
888 }
889 }
890
891 static void
892 bfa_iocpf_sm_disabling_sync_entry(struct bfa_iocpf *iocpf)
893 {
894 bfa_ioc_hw_sem_get(iocpf->ioc);
895 }
896
897 /* IOC hb ack request is being removed. */
898 static void
899 bfa_iocpf_sm_disabling_sync(struct bfa_iocpf *iocpf, enum iocpf_event event)
900 {
901 struct bfa_ioc *ioc = iocpf->ioc;
902
903 switch (event) {
904 case IOCPF_E_SEMLOCKED:
905 bfa_ioc_sync_leave(ioc);
906 bfa_nw_ioc_hw_sem_release(ioc);
907 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_disabled);
908 break;
909
910 case IOCPF_E_SEM_ERROR:
911 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_fail);
912 bfa_ioc_pf_hwfailed(ioc);
913 break;
914
915 case IOCPF_E_FAIL:
916 break;
917
918 default:
919 bfa_sm_fault(event);
920 }
921 }
922
923 /* IOC disable completion entry. */
924 static void
925 bfa_iocpf_sm_disabled_entry(struct bfa_iocpf *iocpf)
926 {
927 bfa_ioc_mbox_flush(iocpf->ioc);
928 bfa_ioc_pf_disabled(iocpf->ioc);
929 }
930
931 static void
932 bfa_iocpf_sm_disabled(struct bfa_iocpf *iocpf, enum iocpf_event event)
933 {
934 struct bfa_ioc *ioc = iocpf->ioc;
935
936 switch (event) {
937 case IOCPF_E_ENABLE:
938 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_semwait);
939 break;
940
941 case IOCPF_E_STOP:
942 bfa_ioc_firmware_unlock(ioc);
943 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_reset);
944 break;
945
946 default:
947 bfa_sm_fault(event);
948 }
949 }
950
951 static void
952 bfa_iocpf_sm_initfail_sync_entry(struct bfa_iocpf *iocpf)
953 {
954 bfa_nw_ioc_debug_save_ftrc(iocpf->ioc);
955 bfa_ioc_hw_sem_get(iocpf->ioc);
956 }
957
958 /* Hardware initialization failed. */
959 static void
960 bfa_iocpf_sm_initfail_sync(struct bfa_iocpf *iocpf, enum iocpf_event event)
961 {
962 struct bfa_ioc *ioc = iocpf->ioc;
963
964 switch (event) {
965 case IOCPF_E_SEMLOCKED:
966 bfa_ioc_notify_fail(ioc);
967 bfa_ioc_sync_leave(ioc);
968 bfa_ioc_set_cur_ioc_fwstate(ioc, BFI_IOC_FAIL);
969 bfa_nw_ioc_hw_sem_release(ioc);
970 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_initfail);
971 break;
972
973 case IOCPF_E_SEM_ERROR:
974 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_fail);
975 bfa_ioc_pf_hwfailed(ioc);
976 break;
977
978 case IOCPF_E_DISABLE:
979 bfa_ioc_hw_sem_get_cancel(ioc);
980 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_disabling_sync);
981 break;
982
983 case IOCPF_E_STOP:
984 bfa_ioc_hw_sem_get_cancel(ioc);
985 bfa_ioc_firmware_unlock(ioc);
986 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_reset);
987 break;
988
989 case IOCPF_E_FAIL:
990 break;
991
992 default:
993 bfa_sm_fault(event);
994 }
995 }
996
997 static void
998 bfa_iocpf_sm_initfail_entry(struct bfa_iocpf *iocpf)
999 {
1000 }
1001
1002 /* Hardware initialization failed. */
1003 static void
1004 bfa_iocpf_sm_initfail(struct bfa_iocpf *iocpf, enum iocpf_event event)
1005 {
1006 struct bfa_ioc *ioc = iocpf->ioc;
1007
1008 switch (event) {
1009 case IOCPF_E_DISABLE:
1010 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_disabled);
1011 break;
1012
1013 case IOCPF_E_STOP:
1014 bfa_ioc_firmware_unlock(ioc);
1015 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_reset);
1016 break;
1017
1018 default:
1019 bfa_sm_fault(event);
1020 }
1021 }
1022
1023 static void
1024 bfa_iocpf_sm_fail_sync_entry(struct bfa_iocpf *iocpf)
1025 {
1026 /**
1027 * Mark IOC as failed in hardware and stop firmware.
1028 */
1029 bfa_ioc_lpu_stop(iocpf->ioc);
1030
1031 /**
1032 * Flush any queued up mailbox requests.
1033 */
1034 bfa_ioc_mbox_flush(iocpf->ioc);
1035 bfa_ioc_hw_sem_get(iocpf->ioc);
1036 }
1037
1038 /* IOC is in failed state. */
1039 static void
1040 bfa_iocpf_sm_fail_sync(struct bfa_iocpf *iocpf, enum iocpf_event event)
1041 {
1042 struct bfa_ioc *ioc = iocpf->ioc;
1043
1044 switch (event) {
1045 case IOCPF_E_SEMLOCKED:
1046 bfa_ioc_sync_ack(ioc);
1047 bfa_ioc_notify_fail(ioc);
1048 if (!iocpf->auto_recover) {
1049 bfa_ioc_sync_leave(ioc);
1050 bfa_ioc_set_cur_ioc_fwstate(ioc, BFI_IOC_FAIL);
1051 bfa_nw_ioc_hw_sem_release(ioc);
1052 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_fail);
1053 } else {
1054 if (bfa_ioc_sync_complete(ioc))
1055 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_hwinit);
1056 else {
1057 bfa_nw_ioc_hw_sem_release(ioc);
1058 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_semwait);
1059 }
1060 }
1061 break;
1062
1063 case IOCPF_E_SEM_ERROR:
1064 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_fail);
1065 bfa_ioc_pf_hwfailed(ioc);
1066 break;
1067
1068 case IOCPF_E_DISABLE:
1069 bfa_ioc_hw_sem_get_cancel(ioc);
1070 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_disabling_sync);
1071 break;
1072
1073 case IOCPF_E_FAIL:
1074 break;
1075
1076 default:
1077 bfa_sm_fault(event);
1078 }
1079 }
1080
1081 static void
1082 bfa_iocpf_sm_fail_entry(struct bfa_iocpf *iocpf)
1083 {
1084 }
1085
1086 /* IOC is in failed state. */
1087 static void
1088 bfa_iocpf_sm_fail(struct bfa_iocpf *iocpf, enum iocpf_event event)
1089 {
1090 switch (event) {
1091 case IOCPF_E_DISABLE:
1092 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_disabled);
1093 break;
1094
1095 default:
1096 bfa_sm_fault(event);
1097 }
1098 }
1099
1100 /* BFA IOC private functions */
1101
1102 /* Notify common modules registered for notification. */
1103 static void
1104 bfa_ioc_event_notify(struct bfa_ioc *ioc, enum bfa_ioc_event event)
1105 {
1106 struct bfa_ioc_notify *notify;
1107 struct list_head *qe;
1108
1109 list_for_each(qe, &ioc->notify_q) {
1110 notify = (struct bfa_ioc_notify *)qe;
1111 notify->cbfn(notify->cbarg, event);
1112 }
1113 }
1114
1115 static void
1116 bfa_ioc_disable_comp(struct bfa_ioc *ioc)
1117 {
1118 ioc->cbfn->disable_cbfn(ioc->bfa);
1119 bfa_ioc_event_notify(ioc, BFA_IOC_E_DISABLED);
1120 }
1121
1122 bool
1123 bfa_nw_ioc_sem_get(void __iomem *sem_reg)
1124 {
1125 u32 r32;
1126 int cnt = 0;
1127 #define BFA_SEM_SPINCNT 3000
1128
1129 r32 = readl(sem_reg);
1130
1131 while ((r32 & 1) && (cnt < BFA_SEM_SPINCNT)) {
1132 cnt++;
1133 udelay(2);
1134 r32 = readl(sem_reg);
1135 }
1136
1137 if (!(r32 & 1))
1138 return true;
1139
1140 return false;
1141 }
1142
1143 void
1144 bfa_nw_ioc_sem_release(void __iomem *sem_reg)
1145 {
1146 readl(sem_reg);
1147 writel(1, sem_reg);
1148 }
1149
1150 /* Clear fwver hdr */
1151 static void
1152 bfa_ioc_fwver_clear(struct bfa_ioc *ioc)
1153 {
1154 u32 pgnum, pgoff, loff = 0;
1155 int i;
1156
1157 pgnum = PSS_SMEM_PGNUM(ioc->ioc_regs.smem_pg0, loff);
1158 pgoff = PSS_SMEM_PGOFF(loff);
1159 writel(pgnum, ioc->ioc_regs.host_page_num_fn);
1160
1161 for (i = 0; i < (sizeof(struct bfi_ioc_image_hdr) / sizeof(u32)); i++) {
1162 writel(0, ioc->ioc_regs.smem_page_start + loff);
1163 loff += sizeof(u32);
1164 }
1165 }
1166
1167
1168 static void
1169 bfa_ioc_hw_sem_init(struct bfa_ioc *ioc)
1170 {
1171 struct bfi_ioc_image_hdr fwhdr;
1172 u32 fwstate, r32;
1173
1174 /* Spin on init semaphore to serialize. */
1175 r32 = readl(ioc->ioc_regs.ioc_init_sem_reg);
1176 while (r32 & 0x1) {
1177 udelay(20);
1178 r32 = readl(ioc->ioc_regs.ioc_init_sem_reg);
1179 }
1180
1181 fwstate = bfa_ioc_get_cur_ioc_fwstate(ioc);
1182 if (fwstate == BFI_IOC_UNINIT) {
1183 writel(1, ioc->ioc_regs.ioc_init_sem_reg);
1184 return;
1185 }
1186
1187 bfa_nw_ioc_fwver_get(ioc, &fwhdr);
1188
1189 if (swab32(fwhdr.exec) == BFI_FWBOOT_TYPE_NORMAL) {
1190 writel(1, ioc->ioc_regs.ioc_init_sem_reg);
1191 return;
1192 }
1193
1194 bfa_ioc_fwver_clear(ioc);
1195 bfa_ioc_set_cur_ioc_fwstate(ioc, BFI_IOC_UNINIT);
1196 bfa_ioc_set_alt_ioc_fwstate(ioc, BFI_IOC_UNINIT);
1197
1198 /*
1199 * Try to lock and then unlock the semaphore.
1200 */
1201 readl(ioc->ioc_regs.ioc_sem_reg);
1202 writel(1, ioc->ioc_regs.ioc_sem_reg);
1203
1204 /* Unlock init semaphore */
1205 writel(1, ioc->ioc_regs.ioc_init_sem_reg);
1206 }
1207
1208 static void
1209 bfa_ioc_hw_sem_get(struct bfa_ioc *ioc)
1210 {
1211 u32 r32;
1212
1213 /**
1214 * First read to the semaphore register will return 0, subsequent reads
1215 * will return 1. Semaphore is released by writing 1 to the register
1216 */
1217 r32 = readl(ioc->ioc_regs.ioc_sem_reg);
1218 if (r32 == ~0) {
1219 bfa_fsm_send_event(&ioc->iocpf, IOCPF_E_SEM_ERROR);
1220 return;
1221 }
1222 if (!(r32 & 1)) {
1223 bfa_fsm_send_event(&ioc->iocpf, IOCPF_E_SEMLOCKED);
1224 return;
1225 }
1226
1227 mod_timer(&ioc->sem_timer, jiffies +
1228 msecs_to_jiffies(BFA_IOC_HWSEM_TOV));
1229 }
1230
1231 void
1232 bfa_nw_ioc_hw_sem_release(struct bfa_ioc *ioc)
1233 {
1234 writel(1, ioc->ioc_regs.ioc_sem_reg);
1235 }
1236
1237 static void
1238 bfa_ioc_hw_sem_get_cancel(struct bfa_ioc *ioc)
1239 {
1240 del_timer(&ioc->sem_timer);
1241 }
1242
1243 /* Initialize LPU local memory (aka secondary memory / SRAM) */
1244 static void
1245 bfa_ioc_lmem_init(struct bfa_ioc *ioc)
1246 {
1247 u32 pss_ctl;
1248 int i;
1249 #define PSS_LMEM_INIT_TIME 10000
1250
1251 pss_ctl = readl(ioc->ioc_regs.pss_ctl_reg);
1252 pss_ctl &= ~__PSS_LMEM_RESET;
1253 pss_ctl |= __PSS_LMEM_INIT_EN;
1254
1255 /*
1256 * i2c workaround 12.5khz clock
1257 */
1258 pss_ctl |= __PSS_I2C_CLK_DIV(3UL);
1259 writel(pss_ctl, ioc->ioc_regs.pss_ctl_reg);
1260
1261 /**
1262 * wait for memory initialization to be complete
1263 */
1264 i = 0;
1265 do {
1266 pss_ctl = readl(ioc->ioc_regs.pss_ctl_reg);
1267 i++;
1268 } while (!(pss_ctl & __PSS_LMEM_INIT_DONE) && (i < PSS_LMEM_INIT_TIME));
1269
1270 /**
1271 * If memory initialization is not successful, IOC timeout will catch
1272 * such failures.
1273 */
1274 BUG_ON(!(pss_ctl & __PSS_LMEM_INIT_DONE));
1275
1276 pss_ctl &= ~(__PSS_LMEM_INIT_DONE | __PSS_LMEM_INIT_EN);
1277 writel(pss_ctl, ioc->ioc_regs.pss_ctl_reg);
1278 }
1279
1280 static void
1281 bfa_ioc_lpu_start(struct bfa_ioc *ioc)
1282 {
1283 u32 pss_ctl;
1284
1285 /**
1286 * Take processor out of reset.
1287 */
1288 pss_ctl = readl(ioc->ioc_regs.pss_ctl_reg);
1289 pss_ctl &= ~__PSS_LPU0_RESET;
1290
1291 writel(pss_ctl, ioc->ioc_regs.pss_ctl_reg);
1292 }
1293
1294 static void
1295 bfa_ioc_lpu_stop(struct bfa_ioc *ioc)
1296 {
1297 u32 pss_ctl;
1298
1299 /**
1300 * Put processors in reset.
1301 */
1302 pss_ctl = readl(ioc->ioc_regs.pss_ctl_reg);
1303 pss_ctl |= (__PSS_LPU0_RESET | __PSS_LPU1_RESET);
1304
1305 writel(pss_ctl, ioc->ioc_regs.pss_ctl_reg);
1306 }
1307
1308 /* Get driver and firmware versions. */
1309 void
1310 bfa_nw_ioc_fwver_get(struct bfa_ioc *ioc, struct bfi_ioc_image_hdr *fwhdr)
1311 {
1312 u32 pgnum;
1313 u32 loff = 0;
1314 int i;
1315 u32 *fwsig = (u32 *) fwhdr;
1316
1317 pgnum = bfa_ioc_smem_pgnum(ioc, loff);
1318 writel(pgnum, ioc->ioc_regs.host_page_num_fn);
1319
1320 for (i = 0; i < (sizeof(struct bfi_ioc_image_hdr) / sizeof(u32));
1321 i++) {
1322 fwsig[i] =
1323 swab32(readl((loff) + (ioc->ioc_regs.smem_page_start)));
1324 loff += sizeof(u32);
1325 }
1326 }
1327
1328 static bool
1329 bfa_ioc_fwver_md5_check(struct bfi_ioc_image_hdr *fwhdr_1,
1330 struct bfi_ioc_image_hdr *fwhdr_2)
1331 {
1332 int i;
1333
1334 for (i = 0; i < BFI_IOC_MD5SUM_SZ; i++) {
1335 if (fwhdr_1->md5sum[i] != fwhdr_2->md5sum[i])
1336 return false;
1337 }
1338
1339 return true;
1340 }
1341
1342 /* Returns TRUE if major minor and maintainence are same.
1343 * If patch version are same, check for MD5 Checksum to be same.
1344 */
1345 static bool
1346 bfa_ioc_fw_ver_compatible(struct bfi_ioc_image_hdr *drv_fwhdr,
1347 struct bfi_ioc_image_hdr *fwhdr_to_cmp)
1348 {
1349 if (drv_fwhdr->signature != fwhdr_to_cmp->signature)
1350 return false;
1351 if (drv_fwhdr->fwver.major != fwhdr_to_cmp->fwver.major)
1352 return false;
1353 if (drv_fwhdr->fwver.minor != fwhdr_to_cmp->fwver.minor)
1354 return false;
1355 if (drv_fwhdr->fwver.maint != fwhdr_to_cmp->fwver.maint)
1356 return false;
1357 if (drv_fwhdr->fwver.patch == fwhdr_to_cmp->fwver.patch &&
1358 drv_fwhdr->fwver.phase == fwhdr_to_cmp->fwver.phase &&
1359 drv_fwhdr->fwver.build == fwhdr_to_cmp->fwver.build)
1360 return bfa_ioc_fwver_md5_check(drv_fwhdr, fwhdr_to_cmp);
1361
1362 return true;
1363 }
1364
1365 static bool
1366 bfa_ioc_flash_fwver_valid(struct bfi_ioc_image_hdr *flash_fwhdr)
1367 {
1368 if (flash_fwhdr->fwver.major == 0 || flash_fwhdr->fwver.major == 0xFF)
1369 return false;
1370
1371 return true;
1372 }
1373
1374 static bool
1375 fwhdr_is_ga(struct bfi_ioc_image_hdr *fwhdr)
1376 {
1377 if (fwhdr->fwver.phase == 0 &&
1378 fwhdr->fwver.build == 0)
1379 return false;
1380
1381 return true;
1382 }
1383
1384 /* Returns TRUE if both are compatible and patch of fwhdr_to_cmp is better. */
1385 static enum bfi_ioc_img_ver_cmp
1386 bfa_ioc_fw_ver_patch_cmp(struct bfi_ioc_image_hdr *base_fwhdr,
1387 struct bfi_ioc_image_hdr *fwhdr_to_cmp)
1388 {
1389 if (bfa_ioc_fw_ver_compatible(base_fwhdr, fwhdr_to_cmp) == false)
1390 return BFI_IOC_IMG_VER_INCOMP;
1391
1392 if (fwhdr_to_cmp->fwver.patch > base_fwhdr->fwver.patch)
1393 return BFI_IOC_IMG_VER_BETTER;
1394 else if (fwhdr_to_cmp->fwver.patch < base_fwhdr->fwver.patch)
1395 return BFI_IOC_IMG_VER_OLD;
1396
1397 /* GA takes priority over internal builds of the same patch stream.
1398 * At this point major minor maint and patch numbers are same.
1399 */
1400 if (fwhdr_is_ga(base_fwhdr) == true)
1401 if (fwhdr_is_ga(fwhdr_to_cmp))
1402 return BFI_IOC_IMG_VER_SAME;
1403 else
1404 return BFI_IOC_IMG_VER_OLD;
1405 else
1406 if (fwhdr_is_ga(fwhdr_to_cmp))
1407 return BFI_IOC_IMG_VER_BETTER;
1408
1409 if (fwhdr_to_cmp->fwver.phase > base_fwhdr->fwver.phase)
1410 return BFI_IOC_IMG_VER_BETTER;
1411 else if (fwhdr_to_cmp->fwver.phase < base_fwhdr->fwver.phase)
1412 return BFI_IOC_IMG_VER_OLD;
1413
1414 if (fwhdr_to_cmp->fwver.build > base_fwhdr->fwver.build)
1415 return BFI_IOC_IMG_VER_BETTER;
1416 else if (fwhdr_to_cmp->fwver.build < base_fwhdr->fwver.build)
1417 return BFI_IOC_IMG_VER_OLD;
1418
1419 /* All Version Numbers are equal.
1420 * Md5 check to be done as a part of compatibility check.
1421 */
1422 return BFI_IOC_IMG_VER_SAME;
1423 }
1424
1425 /* register definitions */
1426 #define FLI_CMD_REG 0x0001d000
1427 #define FLI_WRDATA_REG 0x0001d00c
1428 #define FLI_RDDATA_REG 0x0001d010
1429 #define FLI_ADDR_REG 0x0001d004
1430 #define FLI_DEV_STATUS_REG 0x0001d014
1431
1432 #define BFA_FLASH_FIFO_SIZE 128 /* fifo size */
1433 #define BFA_FLASH_CHECK_MAX 10000 /* max # of status check */
1434 #define BFA_FLASH_BLOCKING_OP_MAX 1000000 /* max # of blocking op check */
1435 #define BFA_FLASH_WIP_MASK 0x01 /* write in progress bit mask */
1436
1437 #define NFC_STATE_RUNNING 0x20000001
1438 #define NFC_STATE_PAUSED 0x00004560
1439 #define NFC_VER_VALID 0x147
1440
1441 enum bfa_flash_cmd {
1442 BFA_FLASH_FAST_READ = 0x0b, /* fast read */
1443 BFA_FLASH_WRITE_ENABLE = 0x06, /* write enable */
1444 BFA_FLASH_SECTOR_ERASE = 0xd8, /* sector erase */
1445 BFA_FLASH_WRITE = 0x02, /* write */
1446 BFA_FLASH_READ_STATUS = 0x05, /* read status */
1447 };
1448
1449 /* hardware error definition */
1450 enum bfa_flash_err {
1451 BFA_FLASH_NOT_PRESENT = -1, /*!< flash not present */
1452 BFA_FLASH_UNINIT = -2, /*!< flash not initialized */
1453 BFA_FLASH_BAD = -3, /*!< flash bad */
1454 BFA_FLASH_BUSY = -4, /*!< flash busy */
1455 BFA_FLASH_ERR_CMD_ACT = -5, /*!< command active never cleared */
1456 BFA_FLASH_ERR_FIFO_CNT = -6, /*!< fifo count never cleared */
1457 BFA_FLASH_ERR_WIP = -7, /*!< write-in-progress never cleared */
1458 BFA_FLASH_ERR_TIMEOUT = -8, /*!< fli timeout */
1459 BFA_FLASH_ERR_LEN = -9, /*!< invalid length */
1460 };
1461
1462 /* flash command register data structure */
1463 union bfa_flash_cmd_reg {
1464 struct {
1465 #ifdef __BIG_ENDIAN
1466 u32 act:1;
1467 u32 rsv:1;
1468 u32 write_cnt:9;
1469 u32 read_cnt:9;
1470 u32 addr_cnt:4;
1471 u32 cmd:8;
1472 #else
1473 u32 cmd:8;
1474 u32 addr_cnt:4;
1475 u32 read_cnt:9;
1476 u32 write_cnt:9;
1477 u32 rsv:1;
1478 u32 act:1;
1479 #endif
1480 } r;
1481 u32 i;
1482 };
1483
1484 /* flash device status register data structure */
1485 union bfa_flash_dev_status_reg {
1486 struct {
1487 #ifdef __BIG_ENDIAN
1488 u32 rsv:21;
1489 u32 fifo_cnt:6;
1490 u32 busy:1;
1491 u32 init_status:1;
1492 u32 present:1;
1493 u32 bad:1;
1494 u32 good:1;
1495 #else
1496 u32 good:1;
1497 u32 bad:1;
1498 u32 present:1;
1499 u32 init_status:1;
1500 u32 busy:1;
1501 u32 fifo_cnt:6;
1502 u32 rsv:21;
1503 #endif
1504 } r;
1505 u32 i;
1506 };
1507
1508 /* flash address register data structure */
1509 union bfa_flash_addr_reg {
1510 struct {
1511 #ifdef __BIG_ENDIAN
1512 u32 addr:24;
1513 u32 dummy:8;
1514 #else
1515 u32 dummy:8;
1516 u32 addr:24;
1517 #endif
1518 } r;
1519 u32 i;
1520 };
1521
1522 /* Flash raw private functions */
1523 static void
1524 bfa_flash_set_cmd(void __iomem *pci_bar, u8 wr_cnt,
1525 u8 rd_cnt, u8 ad_cnt, u8 op)
1526 {
1527 union bfa_flash_cmd_reg cmd;
1528
1529 cmd.i = 0;
1530 cmd.r.act = 1;
1531 cmd.r.write_cnt = wr_cnt;
1532 cmd.r.read_cnt = rd_cnt;
1533 cmd.r.addr_cnt = ad_cnt;
1534 cmd.r.cmd = op;
1535 writel(cmd.i, (pci_bar + FLI_CMD_REG));
1536 }
1537
1538 static void
1539 bfa_flash_set_addr(void __iomem *pci_bar, u32 address)
1540 {
1541 union bfa_flash_addr_reg addr;
1542
1543 addr.r.addr = address & 0x00ffffff;
1544 addr.r.dummy = 0;
1545 writel(addr.i, (pci_bar + FLI_ADDR_REG));
1546 }
1547
1548 static int
1549 bfa_flash_cmd_act_check(void __iomem *pci_bar)
1550 {
1551 union bfa_flash_cmd_reg cmd;
1552
1553 cmd.i = readl(pci_bar + FLI_CMD_REG);
1554
1555 if (cmd.r.act)
1556 return BFA_FLASH_ERR_CMD_ACT;
1557
1558 return 0;
1559 }
1560
1561 /* Flush FLI data fifo. */
1562 static u32
1563 bfa_flash_fifo_flush(void __iomem *pci_bar)
1564 {
1565 u32 i;
1566 u32 t;
1567 union bfa_flash_dev_status_reg dev_status;
1568
1569 dev_status.i = readl(pci_bar + FLI_DEV_STATUS_REG);
1570
1571 if (!dev_status.r.fifo_cnt)
1572 return 0;
1573
1574 /* fifo counter in terms of words */
1575 for (i = 0; i < dev_status.r.fifo_cnt; i++)
1576 t = readl(pci_bar + FLI_RDDATA_REG);
1577
1578 /* Check the device status. It may take some time. */
1579 for (i = 0; i < BFA_FLASH_CHECK_MAX; i++) {
1580 dev_status.i = readl(pci_bar + FLI_DEV_STATUS_REG);
1581 if (!dev_status.r.fifo_cnt)
1582 break;
1583 }
1584
1585 if (dev_status.r.fifo_cnt)
1586 return BFA_FLASH_ERR_FIFO_CNT;
1587
1588 return 0;
1589 }
1590
1591 /* Read flash status. */
1592 static u32
1593 bfa_flash_status_read(void __iomem *pci_bar)
1594 {
1595 union bfa_flash_dev_status_reg dev_status;
1596 u32 status;
1597 u32 ret_status;
1598 int i;
1599
1600 status = bfa_flash_fifo_flush(pci_bar);
1601 if (status < 0)
1602 return status;
1603
1604 bfa_flash_set_cmd(pci_bar, 0, 4, 0, BFA_FLASH_READ_STATUS);
1605
1606 for (i = 0; i < BFA_FLASH_CHECK_MAX; i++) {
1607 status = bfa_flash_cmd_act_check(pci_bar);
1608 if (!status)
1609 break;
1610 }
1611
1612 if (status)
1613 return status;
1614
1615 dev_status.i = readl(pci_bar + FLI_DEV_STATUS_REG);
1616 if (!dev_status.r.fifo_cnt)
1617 return BFA_FLASH_BUSY;
1618
1619 ret_status = readl(pci_bar + FLI_RDDATA_REG);
1620 ret_status >>= 24;
1621
1622 status = bfa_flash_fifo_flush(pci_bar);
1623 if (status < 0)
1624 return status;
1625
1626 return ret_status;
1627 }
1628
1629 /* Start flash read operation. */
1630 static u32
1631 bfa_flash_read_start(void __iomem *pci_bar, u32 offset, u32 len,
1632 char *buf)
1633 {
1634 u32 status;
1635
1636 /* len must be mutiple of 4 and not exceeding fifo size */
1637 if (len == 0 || len > BFA_FLASH_FIFO_SIZE || (len & 0x03) != 0)
1638 return BFA_FLASH_ERR_LEN;
1639
1640 /* check status */
1641 status = bfa_flash_status_read(pci_bar);
1642 if (status == BFA_FLASH_BUSY)
1643 status = bfa_flash_status_read(pci_bar);
1644
1645 if (status < 0)
1646 return status;
1647
1648 /* check if write-in-progress bit is cleared */
1649 if (status & BFA_FLASH_WIP_MASK)
1650 return BFA_FLASH_ERR_WIP;
1651
1652 bfa_flash_set_addr(pci_bar, offset);
1653
1654 bfa_flash_set_cmd(pci_bar, 0, (u8)len, 4, BFA_FLASH_FAST_READ);
1655
1656 return 0;
1657 }
1658
1659 /* Check flash read operation. */
1660 static u32
1661 bfa_flash_read_check(void __iomem *pci_bar)
1662 {
1663 if (bfa_flash_cmd_act_check(pci_bar))
1664 return 1;
1665
1666 return 0;
1667 }
1668
1669 /* End flash read operation. */
1670 static void
1671 bfa_flash_read_end(void __iomem *pci_bar, u32 len, char *buf)
1672 {
1673 u32 i;
1674
1675 /* read data fifo up to 32 words */
1676 for (i = 0; i < len; i += 4) {
1677 u32 w = readl(pci_bar + FLI_RDDATA_REG);
1678 *((u32 *)(buf + i)) = swab32(w);
1679 }
1680
1681 bfa_flash_fifo_flush(pci_bar);
1682 }
1683
1684 /* Perform flash raw read. */
1685
1686 #define FLASH_BLOCKING_OP_MAX 500
1687 #define FLASH_SEM_LOCK_REG 0x18820
1688
1689 static int
1690 bfa_raw_sem_get(void __iomem *bar)
1691 {
1692 int locked;
1693
1694 locked = readl((bar + FLASH_SEM_LOCK_REG));
1695
1696 return !locked;
1697 }
1698
1699 static enum bfa_status
1700 bfa_flash_sem_get(void __iomem *bar)
1701 {
1702 u32 n = FLASH_BLOCKING_OP_MAX;
1703
1704 while (!bfa_raw_sem_get(bar)) {
1705 if (--n <= 0)
1706 return BFA_STATUS_BADFLASH;
1707 mdelay(10);
1708 }
1709 return BFA_STATUS_OK;
1710 }
1711
1712 static void
1713 bfa_flash_sem_put(void __iomem *bar)
1714 {
1715 writel(0, (bar + FLASH_SEM_LOCK_REG));
1716 }
1717
1718 static enum bfa_status
1719 bfa_flash_raw_read(void __iomem *pci_bar, u32 offset, char *buf,
1720 u32 len)
1721 {
1722 u32 n, status;
1723 u32 off, l, s, residue, fifo_sz;
1724
1725 residue = len;
1726 off = 0;
1727 fifo_sz = BFA_FLASH_FIFO_SIZE;
1728 status = bfa_flash_sem_get(pci_bar);
1729 if (status != BFA_STATUS_OK)
1730 return status;
1731
1732 while (residue) {
1733 s = offset + off;
1734 n = s / fifo_sz;
1735 l = (n + 1) * fifo_sz - s;
1736 if (l > residue)
1737 l = residue;
1738
1739 status = bfa_flash_read_start(pci_bar, offset + off, l,
1740 &buf[off]);
1741 if (status < 0) {
1742 bfa_flash_sem_put(pci_bar);
1743 return BFA_STATUS_FAILED;
1744 }
1745
1746 n = BFA_FLASH_BLOCKING_OP_MAX;
1747 while (bfa_flash_read_check(pci_bar)) {
1748 if (--n <= 0) {
1749 bfa_flash_sem_put(pci_bar);
1750 return BFA_STATUS_FAILED;
1751 }
1752 }
1753
1754 bfa_flash_read_end(pci_bar, l, &buf[off]);
1755
1756 residue -= l;
1757 off += l;
1758 }
1759 bfa_flash_sem_put(pci_bar);
1760
1761 return BFA_STATUS_OK;
1762 }
1763
1764 #define BFA_FLASH_PART_FWIMG_ADDR 0x100000 /* fw image address */
1765
1766 static enum bfa_status
1767 bfa_nw_ioc_flash_img_get_chnk(struct bfa_ioc *ioc, u32 off,
1768 u32 *fwimg)
1769 {
1770 return bfa_flash_raw_read(ioc->pcidev.pci_bar_kva,
1771 BFA_FLASH_PART_FWIMG_ADDR + (off * sizeof(u32)),
1772 (char *)fwimg, BFI_FLASH_CHUNK_SZ);
1773 }
1774
1775 static enum bfi_ioc_img_ver_cmp
1776 bfa_ioc_flash_fwver_cmp(struct bfa_ioc *ioc,
1777 struct bfi_ioc_image_hdr *base_fwhdr)
1778 {
1779 struct bfi_ioc_image_hdr *flash_fwhdr;
1780 enum bfa_status status;
1781 u32 fwimg[BFI_FLASH_CHUNK_SZ_WORDS];
1782
1783 status = bfa_nw_ioc_flash_img_get_chnk(ioc, 0, fwimg);
1784 if (status != BFA_STATUS_OK)
1785 return BFI_IOC_IMG_VER_INCOMP;
1786
1787 flash_fwhdr = (struct bfi_ioc_image_hdr *)fwimg;
1788 if (bfa_ioc_flash_fwver_valid(flash_fwhdr))
1789 return bfa_ioc_fw_ver_patch_cmp(base_fwhdr, flash_fwhdr);
1790 else
1791 return BFI_IOC_IMG_VER_INCOMP;
1792 }
1793
1794 /**
1795 * Returns TRUE if driver is willing to work with current smem f/w version.
1796 */
1797 bool
1798 bfa_nw_ioc_fwver_cmp(struct bfa_ioc *ioc, struct bfi_ioc_image_hdr *fwhdr)
1799 {
1800 struct bfi_ioc_image_hdr *drv_fwhdr;
1801 enum bfi_ioc_img_ver_cmp smem_flash_cmp, drv_smem_cmp;
1802
1803 drv_fwhdr = (struct bfi_ioc_image_hdr *)
1804 bfa_cb_image_get_chunk(bfa_ioc_asic_gen(ioc), 0);
1805
1806 /* If smem is incompatible or old, driver should not work with it. */
1807 drv_smem_cmp = bfa_ioc_fw_ver_patch_cmp(drv_fwhdr, fwhdr);
1808 if (drv_smem_cmp == BFI_IOC_IMG_VER_INCOMP ||
1809 drv_smem_cmp == BFI_IOC_IMG_VER_OLD) {
1810 return false;
1811 }
1812
1813 /* IF Flash has a better F/W than smem do not work with smem.
1814 * If smem f/w == flash f/w, as smem f/w not old | incmp, work with it.
1815 * If Flash is old or incomp work with smem iff smem f/w == drv f/w.
1816 */
1817 smem_flash_cmp = bfa_ioc_flash_fwver_cmp(ioc, fwhdr);
1818
1819 if (smem_flash_cmp == BFI_IOC_IMG_VER_BETTER)
1820 return false;
1821 else if (smem_flash_cmp == BFI_IOC_IMG_VER_SAME)
1822 return true;
1823 else
1824 return (drv_smem_cmp == BFI_IOC_IMG_VER_SAME) ?
1825 true : false;
1826 }
1827
1828 /* Return true if current running version is valid. Firmware signature and
1829 * execution context (driver/bios) must match.
1830 */
1831 static bool
1832 bfa_ioc_fwver_valid(struct bfa_ioc *ioc, u32 boot_env)
1833 {
1834 struct bfi_ioc_image_hdr fwhdr;
1835
1836 bfa_nw_ioc_fwver_get(ioc, &fwhdr);
1837 if (swab32(fwhdr.bootenv) != boot_env)
1838 return false;
1839
1840 return bfa_nw_ioc_fwver_cmp(ioc, &fwhdr);
1841 }
1842
1843 /* Conditionally flush any pending message from firmware at start. */
1844 static void
1845 bfa_ioc_msgflush(struct bfa_ioc *ioc)
1846 {
1847 u32 r32;
1848
1849 r32 = readl(ioc->ioc_regs.lpu_mbox_cmd);
1850 if (r32)
1851 writel(1, ioc->ioc_regs.lpu_mbox_cmd);
1852 }
1853
1854 static void
1855 bfa_ioc_hwinit(struct bfa_ioc *ioc, bool force)
1856 {
1857 enum bfi_ioc_state ioc_fwstate;
1858 bool fwvalid;
1859 u32 boot_env;
1860
1861 ioc_fwstate = bfa_ioc_get_cur_ioc_fwstate(ioc);
1862
1863 if (force)
1864 ioc_fwstate = BFI_IOC_UNINIT;
1865
1866 boot_env = BFI_FWBOOT_ENV_OS;
1867
1868 /**
1869 * check if firmware is valid
1870 */
1871 fwvalid = (ioc_fwstate == BFI_IOC_UNINIT) ?
1872 false : bfa_ioc_fwver_valid(ioc, boot_env);
1873
1874 if (!fwvalid) {
1875 if (bfa_ioc_boot(ioc, BFI_FWBOOT_TYPE_NORMAL, boot_env) ==
1876 BFA_STATUS_OK)
1877 bfa_ioc_poll_fwinit(ioc);
1878
1879 return;
1880 }
1881
1882 /**
1883 * If hardware initialization is in progress (initialized by other IOC),
1884 * just wait for an initialization completion interrupt.
1885 */
1886 if (ioc_fwstate == BFI_IOC_INITING) {
1887 bfa_ioc_poll_fwinit(ioc);
1888 return;
1889 }
1890
1891 /**
1892 * If IOC function is disabled and firmware version is same,
1893 * just re-enable IOC.
1894 */
1895 if (ioc_fwstate == BFI_IOC_DISABLED || ioc_fwstate == BFI_IOC_OP) {
1896 /**
1897 * When using MSI-X any pending firmware ready event should
1898 * be flushed. Otherwise MSI-X interrupts are not delivered.
1899 */
1900 bfa_ioc_msgflush(ioc);
1901 bfa_fsm_send_event(&ioc->iocpf, IOCPF_E_FWREADY);
1902 return;
1903 }
1904
1905 /**
1906 * Initialize the h/w for any other states.
1907 */
1908 if (bfa_ioc_boot(ioc, BFI_FWBOOT_TYPE_NORMAL, boot_env) ==
1909 BFA_STATUS_OK)
1910 bfa_ioc_poll_fwinit(ioc);
1911 }
1912
1913 void
1914 bfa_nw_ioc_timeout(void *ioc_arg)
1915 {
1916 struct bfa_ioc *ioc = (struct bfa_ioc *) ioc_arg;
1917
1918 bfa_fsm_send_event(ioc, IOC_E_TIMEOUT);
1919 }
1920
1921 static void
1922 bfa_ioc_mbox_send(struct bfa_ioc *ioc, void *ioc_msg, int len)
1923 {
1924 u32 *msgp = (u32 *) ioc_msg;
1925 u32 i;
1926
1927 BUG_ON(!(len <= BFI_IOC_MSGLEN_MAX));
1928
1929 /*
1930 * first write msg to mailbox registers
1931 */
1932 for (i = 0; i < len / sizeof(u32); i++)
1933 writel(cpu_to_le32(msgp[i]),
1934 ioc->ioc_regs.hfn_mbox + i * sizeof(u32));
1935
1936 for (; i < BFI_IOC_MSGLEN_MAX / sizeof(u32); i++)
1937 writel(0, ioc->ioc_regs.hfn_mbox + i * sizeof(u32));
1938
1939 /*
1940 * write 1 to mailbox CMD to trigger LPU event
1941 */
1942 writel(1, ioc->ioc_regs.hfn_mbox_cmd);
1943 (void) readl(ioc->ioc_regs.hfn_mbox_cmd);
1944 }
1945
1946 static void
1947 bfa_ioc_send_enable(struct bfa_ioc *ioc)
1948 {
1949 struct bfi_ioc_ctrl_req enable_req;
1950 struct timeval tv;
1951
1952 bfi_h2i_set(enable_req.mh, BFI_MC_IOC, BFI_IOC_H2I_ENABLE_REQ,
1953 bfa_ioc_portid(ioc));
1954 enable_req.clscode = htons(ioc->clscode);
1955 do_gettimeofday(&tv);
1956 enable_req.tv_sec = ntohl(tv.tv_sec);
1957 bfa_ioc_mbox_send(ioc, &enable_req, sizeof(struct bfi_ioc_ctrl_req));
1958 }
1959
1960 static void
1961 bfa_ioc_send_disable(struct bfa_ioc *ioc)
1962 {
1963 struct bfi_ioc_ctrl_req disable_req;
1964
1965 bfi_h2i_set(disable_req.mh, BFI_MC_IOC, BFI_IOC_H2I_DISABLE_REQ,
1966 bfa_ioc_portid(ioc));
1967 bfa_ioc_mbox_send(ioc, &disable_req, sizeof(struct bfi_ioc_ctrl_req));
1968 }
1969
1970 static void
1971 bfa_ioc_send_getattr(struct bfa_ioc *ioc)
1972 {
1973 struct bfi_ioc_getattr_req attr_req;
1974
1975 bfi_h2i_set(attr_req.mh, BFI_MC_IOC, BFI_IOC_H2I_GETATTR_REQ,
1976 bfa_ioc_portid(ioc));
1977 bfa_dma_be_addr_set(attr_req.attr_addr, ioc->attr_dma.pa);
1978 bfa_ioc_mbox_send(ioc, &attr_req, sizeof(attr_req));
1979 }
1980
1981 void
1982 bfa_nw_ioc_hb_check(void *cbarg)
1983 {
1984 struct bfa_ioc *ioc = cbarg;
1985 u32 hb_count;
1986
1987 hb_count = readl(ioc->ioc_regs.heartbeat);
1988 if (ioc->hb_count == hb_count) {
1989 bfa_ioc_recover(ioc);
1990 return;
1991 } else {
1992 ioc->hb_count = hb_count;
1993 }
1994
1995 bfa_ioc_mbox_poll(ioc);
1996 mod_timer(&ioc->hb_timer, jiffies +
1997 msecs_to_jiffies(BFA_IOC_HB_TOV));
1998 }
1999
2000 static void
2001 bfa_ioc_hb_monitor(struct bfa_ioc *ioc)
2002 {
2003 ioc->hb_count = readl(ioc->ioc_regs.heartbeat);
2004 mod_timer(&ioc->hb_timer, jiffies +
2005 msecs_to_jiffies(BFA_IOC_HB_TOV));
2006 }
2007
2008 static void
2009 bfa_ioc_hb_stop(struct bfa_ioc *ioc)
2010 {
2011 del_timer(&ioc->hb_timer);
2012 }
2013
2014 /* Initiate a full firmware download. */
2015 static enum bfa_status
2016 bfa_ioc_download_fw(struct bfa_ioc *ioc, u32 boot_type,
2017 u32 boot_env)
2018 {
2019 u32 *fwimg;
2020 u32 pgnum;
2021 u32 loff = 0;
2022 u32 chunkno = 0;
2023 u32 i;
2024 u32 asicmode;
2025 u32 fwimg_size;
2026 u32 fwimg_buf[BFI_FLASH_CHUNK_SZ_WORDS];
2027 enum bfa_status status;
2028
2029 if (boot_env == BFI_FWBOOT_ENV_OS &&
2030 boot_type == BFI_FWBOOT_TYPE_FLASH) {
2031 fwimg_size = BFI_FLASH_IMAGE_SZ/sizeof(u32);
2032
2033 status = bfa_nw_ioc_flash_img_get_chnk(ioc,
2034 BFA_IOC_FLASH_CHUNK_ADDR(chunkno), fwimg_buf);
2035 if (status != BFA_STATUS_OK)
2036 return status;
2037
2038 fwimg = fwimg_buf;
2039 } else {
2040 fwimg_size = bfa_cb_image_get_size(bfa_ioc_asic_gen(ioc));
2041 fwimg = bfa_cb_image_get_chunk(bfa_ioc_asic_gen(ioc),
2042 BFA_IOC_FLASH_CHUNK_ADDR(chunkno));
2043 }
2044
2045 pgnum = bfa_ioc_smem_pgnum(ioc, loff);
2046
2047 writel(pgnum, ioc->ioc_regs.host_page_num_fn);
2048
2049 for (i = 0; i < fwimg_size; i++) {
2050 if (BFA_IOC_FLASH_CHUNK_NO(i) != chunkno) {
2051 chunkno = BFA_IOC_FLASH_CHUNK_NO(i);
2052 if (boot_env == BFI_FWBOOT_ENV_OS &&
2053 boot_type == BFI_FWBOOT_TYPE_FLASH) {
2054 status = bfa_nw_ioc_flash_img_get_chnk(ioc,
2055 BFA_IOC_FLASH_CHUNK_ADDR(chunkno),
2056 fwimg_buf);
2057 if (status != BFA_STATUS_OK)
2058 return status;
2059
2060 fwimg = fwimg_buf;
2061 } else {
2062 fwimg = bfa_cb_image_get_chunk(
2063 bfa_ioc_asic_gen(ioc),
2064 BFA_IOC_FLASH_CHUNK_ADDR(chunkno));
2065 }
2066 }
2067
2068 /**
2069 * write smem
2070 */
2071 writel((swab32(fwimg[BFA_IOC_FLASH_OFFSET_IN_CHUNK(i)])),
2072 ((ioc->ioc_regs.smem_page_start) + (loff)));
2073
2074 loff += sizeof(u32);
2075
2076 /**
2077 * handle page offset wrap around
2078 */
2079 loff = PSS_SMEM_PGOFF(loff);
2080 if (loff == 0) {
2081 pgnum++;
2082 writel(pgnum,
2083 ioc->ioc_regs.host_page_num_fn);
2084 }
2085 }
2086
2087 writel(bfa_ioc_smem_pgnum(ioc, 0),
2088 ioc->ioc_regs.host_page_num_fn);
2089
2090 /*
2091 * Set boot type, env and device mode at the end.
2092 */
2093 if (boot_env == BFI_FWBOOT_ENV_OS &&
2094 boot_type == BFI_FWBOOT_TYPE_FLASH) {
2095 boot_type = BFI_FWBOOT_TYPE_NORMAL;
2096 }
2097 asicmode = BFI_FWBOOT_DEVMODE(ioc->asic_gen, ioc->asic_mode,
2098 ioc->port0_mode, ioc->port1_mode);
2099 writel(asicmode, ((ioc->ioc_regs.smem_page_start)
2100 + BFI_FWBOOT_DEVMODE_OFF));
2101 writel(boot_type, ((ioc->ioc_regs.smem_page_start)
2102 + (BFI_FWBOOT_TYPE_OFF)));
2103 writel(boot_env, ((ioc->ioc_regs.smem_page_start)
2104 + (BFI_FWBOOT_ENV_OFF)));
2105 return BFA_STATUS_OK;
2106 }
2107
2108 static void
2109 bfa_ioc_reset(struct bfa_ioc *ioc, bool force)
2110 {
2111 bfa_ioc_hwinit(ioc, force);
2112 }
2113
2114 /* BFA ioc enable reply by firmware */
2115 static void
2116 bfa_ioc_enable_reply(struct bfa_ioc *ioc, enum bfa_mode port_mode,
2117 u8 cap_bm)
2118 {
2119 struct bfa_iocpf *iocpf = &ioc->iocpf;
2120
2121 ioc->port_mode = ioc->port_mode_cfg = port_mode;
2122 ioc->ad_cap_bm = cap_bm;
2123 bfa_fsm_send_event(iocpf, IOCPF_E_FWRSP_ENABLE);
2124 }
2125
2126 /* Update BFA configuration from firmware configuration. */
2127 static void
2128 bfa_ioc_getattr_reply(struct bfa_ioc *ioc)
2129 {
2130 struct bfi_ioc_attr *attr = ioc->attr;
2131
2132 attr->adapter_prop = ntohl(attr->adapter_prop);
2133 attr->card_type = ntohl(attr->card_type);
2134 attr->maxfrsize = ntohs(attr->maxfrsize);
2135
2136 bfa_fsm_send_event(ioc, IOC_E_FWRSP_GETATTR);
2137 }
2138
2139 /* Attach time initialization of mbox logic. */
2140 static void
2141 bfa_ioc_mbox_attach(struct bfa_ioc *ioc)
2142 {
2143 struct bfa_ioc_mbox_mod *mod = &ioc->mbox_mod;
2144 int mc;
2145
2146 INIT_LIST_HEAD(&mod->cmd_q);
2147 for (mc = 0; mc < BFI_MC_MAX; mc++) {
2148 mod->mbhdlr[mc].cbfn = NULL;
2149 mod->mbhdlr[mc].cbarg = ioc->bfa;
2150 }
2151 }
2152
2153 /* Mbox poll timer -- restarts any pending mailbox requests. */
2154 static void
2155 bfa_ioc_mbox_poll(struct bfa_ioc *ioc)
2156 {
2157 struct bfa_ioc_mbox_mod *mod = &ioc->mbox_mod;
2158 struct bfa_mbox_cmd *cmd;
2159 bfa_mbox_cmd_cbfn_t cbfn;
2160 void *cbarg;
2161 u32 stat;
2162
2163 /**
2164 * If no command pending, do nothing
2165 */
2166 if (list_empty(&mod->cmd_q))
2167 return;
2168
2169 /**
2170 * If previous command is not yet fetched by firmware, do nothing
2171 */
2172 stat = readl(ioc->ioc_regs.hfn_mbox_cmd);
2173 if (stat)
2174 return;
2175
2176 /**
2177 * Enqueue command to firmware.
2178 */
2179 bfa_q_deq(&mod->cmd_q, &cmd);
2180 bfa_ioc_mbox_send(ioc, cmd->msg, sizeof(cmd->msg));
2181
2182 /**
2183 * Give a callback to the client, indicating that the command is sent
2184 */
2185 if (cmd->cbfn) {
2186 cbfn = cmd->cbfn;
2187 cbarg = cmd->cbarg;
2188 cmd->cbfn = NULL;
2189 cbfn(cbarg);
2190 }
2191 }
2192
2193 /* Cleanup any pending requests. */
2194 static void
2195 bfa_ioc_mbox_flush(struct bfa_ioc *ioc)
2196 {
2197 struct bfa_ioc_mbox_mod *mod = &ioc->mbox_mod;
2198 struct bfa_mbox_cmd *cmd;
2199
2200 while (!list_empty(&mod->cmd_q))
2201 bfa_q_deq(&mod->cmd_q, &cmd);
2202 }
2203
2204 /**
2205 * bfa_nw_ioc_smem_read - Read data from SMEM to host through PCI memmap
2206 *
2207 * @ioc: memory for IOC
2208 * @tbuf: app memory to store data from smem
2209 * @soff: smem offset
2210 * @sz: size of smem in bytes
2211 */
2212 static int
2213 bfa_nw_ioc_smem_read(struct bfa_ioc *ioc, void *tbuf, u32 soff, u32 sz)
2214 {
2215 u32 pgnum, loff, r32;
2216 int i, len;
2217 u32 *buf = tbuf;
2218
2219 pgnum = PSS_SMEM_PGNUM(ioc->ioc_regs.smem_pg0, soff);
2220 loff = PSS_SMEM_PGOFF(soff);
2221
2222 /*
2223 * Hold semaphore to serialize pll init and fwtrc.
2224 */
2225 if (bfa_nw_ioc_sem_get(ioc->ioc_regs.ioc_init_sem_reg) == 0)
2226 return 1;
2227
2228 writel(pgnum, ioc->ioc_regs.host_page_num_fn);
2229
2230 len = sz/sizeof(u32);
2231 for (i = 0; i < len; i++) {
2232 r32 = swab32(readl((loff) + (ioc->ioc_regs.smem_page_start)));
2233 buf[i] = be32_to_cpu(r32);
2234 loff += sizeof(u32);
2235
2236 /**
2237 * handle page offset wrap around
2238 */
2239 loff = PSS_SMEM_PGOFF(loff);
2240 if (loff == 0) {
2241 pgnum++;
2242 writel(pgnum, ioc->ioc_regs.host_page_num_fn);
2243 }
2244 }
2245
2246 writel(PSS_SMEM_PGNUM(ioc->ioc_regs.smem_pg0, 0),
2247 ioc->ioc_regs.host_page_num_fn);
2248
2249 /*
2250 * release semaphore
2251 */
2252 readl(ioc->ioc_regs.ioc_init_sem_reg);
2253 writel(1, ioc->ioc_regs.ioc_init_sem_reg);
2254 return 0;
2255 }
2256
2257 /* Retrieve saved firmware trace from a prior IOC failure. */
2258 int
2259 bfa_nw_ioc_debug_fwtrc(struct bfa_ioc *ioc, void *trcdata, int *trclen)
2260 {
2261 u32 loff = BFI_IOC_TRC_OFF + BNA_DBG_FWTRC_LEN * ioc->port_id;
2262 int tlen, status = 0;
2263
2264 tlen = *trclen;
2265 if (tlen > BNA_DBG_FWTRC_LEN)
2266 tlen = BNA_DBG_FWTRC_LEN;
2267
2268 status = bfa_nw_ioc_smem_read(ioc, trcdata, loff, tlen);
2269 *trclen = tlen;
2270 return status;
2271 }
2272
2273 /* Save firmware trace if configured. */
2274 static void
2275 bfa_nw_ioc_debug_save_ftrc(struct bfa_ioc *ioc)
2276 {
2277 int tlen;
2278
2279 if (ioc->dbg_fwsave_once) {
2280 ioc->dbg_fwsave_once = 0;
2281 if (ioc->dbg_fwsave_len) {
2282 tlen = ioc->dbg_fwsave_len;
2283 bfa_nw_ioc_debug_fwtrc(ioc, ioc->dbg_fwsave, &tlen);
2284 }
2285 }
2286 }
2287
2288 /* Retrieve saved firmware trace from a prior IOC failure. */
2289 int
2290 bfa_nw_ioc_debug_fwsave(struct bfa_ioc *ioc, void *trcdata, int *trclen)
2291 {
2292 int tlen;
2293
2294 if (ioc->dbg_fwsave_len == 0)
2295 return BFA_STATUS_ENOFSAVE;
2296
2297 tlen = *trclen;
2298 if (tlen > ioc->dbg_fwsave_len)
2299 tlen = ioc->dbg_fwsave_len;
2300
2301 memcpy(trcdata, ioc->dbg_fwsave, tlen);
2302 *trclen = tlen;
2303 return BFA_STATUS_OK;
2304 }
2305
2306 static void
2307 bfa_ioc_fail_notify(struct bfa_ioc *ioc)
2308 {
2309 /**
2310 * Notify driver and common modules registered for notification.
2311 */
2312 ioc->cbfn->hbfail_cbfn(ioc->bfa);
2313 bfa_ioc_event_notify(ioc, BFA_IOC_E_FAILED);
2314 bfa_nw_ioc_debug_save_ftrc(ioc);
2315 }
2316
2317 /* IOCPF to IOC interface */
2318 static void
2319 bfa_ioc_pf_enabled(struct bfa_ioc *ioc)
2320 {
2321 bfa_fsm_send_event(ioc, IOC_E_ENABLED);
2322 }
2323
2324 static void
2325 bfa_ioc_pf_disabled(struct bfa_ioc *ioc)
2326 {
2327 bfa_fsm_send_event(ioc, IOC_E_DISABLED);
2328 }
2329
2330 static void
2331 bfa_ioc_pf_failed(struct bfa_ioc *ioc)
2332 {
2333 bfa_fsm_send_event(ioc, IOC_E_PFFAILED);
2334 }
2335
2336 static void
2337 bfa_ioc_pf_hwfailed(struct bfa_ioc *ioc)
2338 {
2339 bfa_fsm_send_event(ioc, IOC_E_HWFAILED);
2340 }
2341
2342 static void
2343 bfa_ioc_pf_fwmismatch(struct bfa_ioc *ioc)
2344 {
2345 /**
2346 * Provide enable completion callback and AEN notification.
2347 */
2348 ioc->cbfn->enable_cbfn(ioc->bfa, BFA_STATUS_IOC_FAILURE);
2349 }
2350
2351 /* IOC public */
2352 static enum bfa_status
2353 bfa_ioc_pll_init(struct bfa_ioc *ioc)
2354 {
2355 /*
2356 * Hold semaphore so that nobody can access the chip during init.
2357 */
2358 bfa_nw_ioc_sem_get(ioc->ioc_regs.ioc_init_sem_reg);
2359
2360 bfa_ioc_pll_init_asic(ioc);
2361
2362 ioc->pllinit = true;
2363
2364 /* Initialize LMEM */
2365 bfa_ioc_lmem_init(ioc);
2366
2367 /*
2368 * release semaphore.
2369 */
2370 bfa_nw_ioc_sem_release(ioc->ioc_regs.ioc_init_sem_reg);
2371
2372 return BFA_STATUS_OK;
2373 }
2374
2375 /* Interface used by diag module to do firmware boot with memory test
2376 * as the entry vector.
2377 */
2378 static enum bfa_status
2379 bfa_ioc_boot(struct bfa_ioc *ioc, enum bfi_fwboot_type boot_type,
2380 u32 boot_env)
2381 {
2382 struct bfi_ioc_image_hdr *drv_fwhdr;
2383 enum bfa_status status;
2384 bfa_ioc_stats(ioc, ioc_boots);
2385
2386 if (bfa_ioc_pll_init(ioc) != BFA_STATUS_OK)
2387 return BFA_STATUS_FAILED;
2388 if (boot_env == BFI_FWBOOT_ENV_OS &&
2389 boot_type == BFI_FWBOOT_TYPE_NORMAL) {
2390 drv_fwhdr = (struct bfi_ioc_image_hdr *)
2391 bfa_cb_image_get_chunk(bfa_ioc_asic_gen(ioc), 0);
2392 /* Work with Flash iff flash f/w is better than driver f/w.
2393 * Otherwise push drivers firmware.
2394 */
2395 if (bfa_ioc_flash_fwver_cmp(ioc, drv_fwhdr) ==
2396 BFI_IOC_IMG_VER_BETTER)
2397 boot_type = BFI_FWBOOT_TYPE_FLASH;
2398 }
2399
2400 /**
2401 * Initialize IOC state of all functions on a chip reset.
2402 */
2403 if (boot_type == BFI_FWBOOT_TYPE_MEMTEST) {
2404 bfa_ioc_set_cur_ioc_fwstate(ioc, BFI_IOC_MEMTEST);
2405 bfa_ioc_set_alt_ioc_fwstate(ioc, BFI_IOC_MEMTEST);
2406 } else {
2407 bfa_ioc_set_cur_ioc_fwstate(ioc, BFI_IOC_INITING);
2408 bfa_ioc_set_alt_ioc_fwstate(ioc, BFI_IOC_INITING);
2409 }
2410
2411 bfa_ioc_msgflush(ioc);
2412 status = bfa_ioc_download_fw(ioc, boot_type, boot_env);
2413 if (status == BFA_STATUS_OK)
2414 bfa_ioc_lpu_start(ioc);
2415 else
2416 bfa_nw_iocpf_timeout(ioc);
2417
2418 return status;
2419 }
2420
2421 /* Enable/disable IOC failure auto recovery. */
2422 void
2423 bfa_nw_ioc_auto_recover(bool auto_recover)
2424 {
2425 bfa_nw_auto_recover = auto_recover;
2426 }
2427
2428 static bool
2429 bfa_ioc_msgget(struct bfa_ioc *ioc, void *mbmsg)
2430 {
2431 u32 *msgp = mbmsg;
2432 u32 r32;
2433 int i;
2434
2435 r32 = readl(ioc->ioc_regs.lpu_mbox_cmd);
2436 if ((r32 & 1) == 0)
2437 return false;
2438
2439 /**
2440 * read the MBOX msg
2441 */
2442 for (i = 0; i < (sizeof(union bfi_ioc_i2h_msg_u) / sizeof(u32));
2443 i++) {
2444 r32 = readl(ioc->ioc_regs.lpu_mbox +
2445 i * sizeof(u32));
2446 msgp[i] = htonl(r32);
2447 }
2448
2449 /**
2450 * turn off mailbox interrupt by clearing mailbox status
2451 */
2452 writel(1, ioc->ioc_regs.lpu_mbox_cmd);
2453 readl(ioc->ioc_regs.lpu_mbox_cmd);
2454
2455 return true;
2456 }
2457
2458 static void
2459 bfa_ioc_isr(struct bfa_ioc *ioc, struct bfi_mbmsg *m)
2460 {
2461 union bfi_ioc_i2h_msg_u *msg;
2462 struct bfa_iocpf *iocpf = &ioc->iocpf;
2463
2464 msg = (union bfi_ioc_i2h_msg_u *) m;
2465
2466 bfa_ioc_stats(ioc, ioc_isrs);
2467
2468 switch (msg->mh.msg_id) {
2469 case BFI_IOC_I2H_HBEAT:
2470 break;
2471
2472 case BFI_IOC_I2H_ENABLE_REPLY:
2473 bfa_ioc_enable_reply(ioc,
2474 (enum bfa_mode)msg->fw_event.port_mode,
2475 msg->fw_event.cap_bm);
2476 break;
2477
2478 case BFI_IOC_I2H_DISABLE_REPLY:
2479 bfa_fsm_send_event(iocpf, IOCPF_E_FWRSP_DISABLE);
2480 break;
2481
2482 case BFI_IOC_I2H_GETATTR_REPLY:
2483 bfa_ioc_getattr_reply(ioc);
2484 break;
2485
2486 default:
2487 BUG_ON(1);
2488 }
2489 }
2490
2491 /**
2492 * bfa_nw_ioc_attach - IOC attach time initialization and setup.
2493 *
2494 * @ioc: memory for IOC
2495 * @bfa: driver instance structure
2496 */
2497 void
2498 bfa_nw_ioc_attach(struct bfa_ioc *ioc, void *bfa, struct bfa_ioc_cbfn *cbfn)
2499 {
2500 ioc->bfa = bfa;
2501 ioc->cbfn = cbfn;
2502 ioc->fcmode = false;
2503 ioc->pllinit = false;
2504 ioc->dbg_fwsave_once = true;
2505 ioc->iocpf.ioc = ioc;
2506
2507 bfa_ioc_mbox_attach(ioc);
2508 INIT_LIST_HEAD(&ioc->notify_q);
2509
2510 bfa_fsm_set_state(ioc, bfa_ioc_sm_uninit);
2511 bfa_fsm_send_event(ioc, IOC_E_RESET);
2512 }
2513
2514 /* Driver detach time IOC cleanup. */
2515 void
2516 bfa_nw_ioc_detach(struct bfa_ioc *ioc)
2517 {
2518 bfa_fsm_send_event(ioc, IOC_E_DETACH);
2519
2520 /* Done with detach, empty the notify_q. */
2521 INIT_LIST_HEAD(&ioc->notify_q);
2522 }
2523
2524 /**
2525 * bfa_nw_ioc_pci_init - Setup IOC PCI properties.
2526 *
2527 * @pcidev: PCI device information for this IOC
2528 */
2529 void
2530 bfa_nw_ioc_pci_init(struct bfa_ioc *ioc, struct bfa_pcidev *pcidev,
2531 enum bfi_pcifn_class clscode)
2532 {
2533 ioc->clscode = clscode;
2534 ioc->pcidev = *pcidev;
2535
2536 /**
2537 * Initialize IOC and device personality
2538 */
2539 ioc->port0_mode = ioc->port1_mode = BFI_PORT_MODE_FC;
2540 ioc->asic_mode = BFI_ASIC_MODE_FC;
2541
2542 switch (pcidev->device_id) {
2543 case PCI_DEVICE_ID_BROCADE_CT:
2544 ioc->asic_gen = BFI_ASIC_GEN_CT;
2545 ioc->port0_mode = ioc->port1_mode = BFI_PORT_MODE_ETH;
2546 ioc->asic_mode = BFI_ASIC_MODE_ETH;
2547 ioc->port_mode = ioc->port_mode_cfg = BFA_MODE_CNA;
2548 ioc->ad_cap_bm = BFA_CM_CNA;
2549 break;
2550
2551 case BFA_PCI_DEVICE_ID_CT2:
2552 ioc->asic_gen = BFI_ASIC_GEN_CT2;
2553 if (clscode == BFI_PCIFN_CLASS_FC &&
2554 pcidev->ssid == BFA_PCI_CT2_SSID_FC) {
2555 ioc->asic_mode = BFI_ASIC_MODE_FC16;
2556 ioc->fcmode = true;
2557 ioc->port_mode = ioc->port_mode_cfg = BFA_MODE_HBA;
2558 ioc->ad_cap_bm = BFA_CM_HBA;
2559 } else {
2560 ioc->port0_mode = ioc->port1_mode = BFI_PORT_MODE_ETH;
2561 ioc->asic_mode = BFI_ASIC_MODE_ETH;
2562 if (pcidev->ssid == BFA_PCI_CT2_SSID_FCoE) {
2563 ioc->port_mode =
2564 ioc->port_mode_cfg = BFA_MODE_CNA;
2565 ioc->ad_cap_bm = BFA_CM_CNA;
2566 } else {
2567 ioc->port_mode =
2568 ioc->port_mode_cfg = BFA_MODE_NIC;
2569 ioc->ad_cap_bm = BFA_CM_NIC;
2570 }
2571 }
2572 break;
2573
2574 default:
2575 BUG_ON(1);
2576 }
2577
2578 /**
2579 * Set asic specific interfaces.
2580 */
2581 if (ioc->asic_gen == BFI_ASIC_GEN_CT)
2582 bfa_nw_ioc_set_ct_hwif(ioc);
2583 else {
2584 WARN_ON(ioc->asic_gen != BFI_ASIC_GEN_CT2);
2585 bfa_nw_ioc_set_ct2_hwif(ioc);
2586 bfa_nw_ioc_ct2_poweron(ioc);
2587 }
2588
2589 bfa_ioc_map_port(ioc);
2590 bfa_ioc_reg_init(ioc);
2591 }
2592
2593 /**
2594 * bfa_nw_ioc_mem_claim - Initialize IOC dma memory
2595 *
2596 * @dm_kva: kernel virtual address of IOC dma memory
2597 * @dm_pa: physical address of IOC dma memory
2598 */
2599 void
2600 bfa_nw_ioc_mem_claim(struct bfa_ioc *ioc, u8 *dm_kva, u64 dm_pa)
2601 {
2602 /**
2603 * dma memory for firmware attribute
2604 */
2605 ioc->attr_dma.kva = dm_kva;
2606 ioc->attr_dma.pa = dm_pa;
2607 ioc->attr = (struct bfi_ioc_attr *) dm_kva;
2608 }
2609
2610 /* Return size of dma memory required. */
2611 u32
2612 bfa_nw_ioc_meminfo(void)
2613 {
2614 return roundup(sizeof(struct bfi_ioc_attr), BFA_DMA_ALIGN_SZ);
2615 }
2616
2617 void
2618 bfa_nw_ioc_enable(struct bfa_ioc *ioc)
2619 {
2620 bfa_ioc_stats(ioc, ioc_enables);
2621 ioc->dbg_fwsave_once = true;
2622
2623 bfa_fsm_send_event(ioc, IOC_E_ENABLE);
2624 }
2625
2626 void
2627 bfa_nw_ioc_disable(struct bfa_ioc *ioc)
2628 {
2629 bfa_ioc_stats(ioc, ioc_disables);
2630 bfa_fsm_send_event(ioc, IOC_E_DISABLE);
2631 }
2632
2633 /* Initialize memory for saving firmware trace. */
2634 void
2635 bfa_nw_ioc_debug_memclaim(struct bfa_ioc *ioc, void *dbg_fwsave)
2636 {
2637 ioc->dbg_fwsave = dbg_fwsave;
2638 ioc->dbg_fwsave_len = ioc->iocpf.auto_recover ? BNA_DBG_FWTRC_LEN : 0;
2639 }
2640
2641 static u32
2642 bfa_ioc_smem_pgnum(struct bfa_ioc *ioc, u32 fmaddr)
2643 {
2644 return PSS_SMEM_PGNUM(ioc->ioc_regs.smem_pg0, fmaddr);
2645 }
2646
2647 /* Register mailbox message handler function, to be called by common modules */
2648 void
2649 bfa_nw_ioc_mbox_regisr(struct bfa_ioc *ioc, enum bfi_mclass mc,
2650 bfa_ioc_mbox_mcfunc_t cbfn, void *cbarg)
2651 {
2652 struct bfa_ioc_mbox_mod *mod = &ioc->mbox_mod;
2653
2654 mod->mbhdlr[mc].cbfn = cbfn;
2655 mod->mbhdlr[mc].cbarg = cbarg;
2656 }
2657
2658 /**
2659 * bfa_nw_ioc_mbox_queue - Queue a mailbox command request to firmware.
2660 *
2661 * @ioc: IOC instance
2662 * @cmd: Mailbox command
2663 *
2664 * Waits if mailbox is busy. Responsibility of caller to serialize
2665 */
2666 bool
2667 bfa_nw_ioc_mbox_queue(struct bfa_ioc *ioc, struct bfa_mbox_cmd *cmd,
2668 bfa_mbox_cmd_cbfn_t cbfn, void *cbarg)
2669 {
2670 struct bfa_ioc_mbox_mod *mod = &ioc->mbox_mod;
2671 u32 stat;
2672
2673 cmd->cbfn = cbfn;
2674 cmd->cbarg = cbarg;
2675
2676 /**
2677 * If a previous command is pending, queue new command
2678 */
2679 if (!list_empty(&mod->cmd_q)) {
2680 list_add_tail(&cmd->qe, &mod->cmd_q);
2681 return true;
2682 }
2683
2684 /**
2685 * If mailbox is busy, queue command for poll timer
2686 */
2687 stat = readl(ioc->ioc_regs.hfn_mbox_cmd);
2688 if (stat) {
2689 list_add_tail(&cmd->qe, &mod->cmd_q);
2690 return true;
2691 }
2692
2693 /**
2694 * mailbox is free -- queue command to firmware
2695 */
2696 bfa_ioc_mbox_send(ioc, cmd->msg, sizeof(cmd->msg));
2697
2698 return false;
2699 }
2700
2701 /* Handle mailbox interrupts */
2702 void
2703 bfa_nw_ioc_mbox_isr(struct bfa_ioc *ioc)
2704 {
2705 struct bfa_ioc_mbox_mod *mod = &ioc->mbox_mod;
2706 struct bfi_mbmsg m;
2707 int mc;
2708
2709 if (bfa_ioc_msgget(ioc, &m)) {
2710 /**
2711 * Treat IOC message class as special.
2712 */
2713 mc = m.mh.msg_class;
2714 if (mc == BFI_MC_IOC) {
2715 bfa_ioc_isr(ioc, &m);
2716 return;
2717 }
2718
2719 if ((mc >= BFI_MC_MAX) || (mod->mbhdlr[mc].cbfn == NULL))
2720 return;
2721
2722 mod->mbhdlr[mc].cbfn(mod->mbhdlr[mc].cbarg, &m);
2723 }
2724
2725 bfa_ioc_lpu_read_stat(ioc);
2726
2727 /**
2728 * Try to send pending mailbox commands
2729 */
2730 bfa_ioc_mbox_poll(ioc);
2731 }
2732
2733 void
2734 bfa_nw_ioc_error_isr(struct bfa_ioc *ioc)
2735 {
2736 bfa_ioc_stats(ioc, ioc_hbfails);
2737 bfa_ioc_stats_hb_count(ioc, ioc->hb_count);
2738 bfa_fsm_send_event(ioc, IOC_E_HWERROR);
2739 }
2740
2741 /* return true if IOC is disabled */
2742 bool
2743 bfa_nw_ioc_is_disabled(struct bfa_ioc *ioc)
2744 {
2745 return bfa_fsm_cmp_state(ioc, bfa_ioc_sm_disabling) ||
2746 bfa_fsm_cmp_state(ioc, bfa_ioc_sm_disabled);
2747 }
2748
2749 /* return true if IOC is operational */
2750 bool
2751 bfa_nw_ioc_is_operational(struct bfa_ioc *ioc)
2752 {
2753 return bfa_fsm_cmp_state(ioc, bfa_ioc_sm_op);
2754 }
2755
2756 /* Add to IOC heartbeat failure notification queue. To be used by common
2757 * modules such as cee, port, diag.
2758 */
2759 void
2760 bfa_nw_ioc_notify_register(struct bfa_ioc *ioc,
2761 struct bfa_ioc_notify *notify)
2762 {
2763 list_add_tail(&notify->qe, &ioc->notify_q);
2764 }
2765
2766 #define BFA_MFG_NAME "Brocade"
2767 static void
2768 bfa_ioc_get_adapter_attr(struct bfa_ioc *ioc,
2769 struct bfa_adapter_attr *ad_attr)
2770 {
2771 struct bfi_ioc_attr *ioc_attr;
2772
2773 ioc_attr = ioc->attr;
2774
2775 bfa_ioc_get_adapter_serial_num(ioc, ad_attr->serial_num);
2776 bfa_ioc_get_adapter_fw_ver(ioc, ad_attr->fw_ver);
2777 bfa_ioc_get_adapter_optrom_ver(ioc, ad_attr->optrom_ver);
2778 bfa_ioc_get_adapter_manufacturer(ioc, ad_attr->manufacturer);
2779 memcpy(&ad_attr->vpd, &ioc_attr->vpd,
2780 sizeof(struct bfa_mfg_vpd));
2781
2782 ad_attr->nports = bfa_ioc_get_nports(ioc);
2783 ad_attr->max_speed = bfa_ioc_speed_sup(ioc);
2784
2785 bfa_ioc_get_adapter_model(ioc, ad_attr->model);
2786 /* For now, model descr uses same model string */
2787 bfa_ioc_get_adapter_model(ioc, ad_attr->model_descr);
2788
2789 ad_attr->card_type = ioc_attr->card_type;
2790 ad_attr->is_mezz = bfa_mfg_is_mezz(ioc_attr->card_type);
2791
2792 if (BFI_ADAPTER_IS_SPECIAL(ioc_attr->adapter_prop))
2793 ad_attr->prototype = 1;
2794 else
2795 ad_attr->prototype = 0;
2796
2797 ad_attr->pwwn = bfa_ioc_get_pwwn(ioc);
2798 ad_attr->mac = bfa_nw_ioc_get_mac(ioc);
2799
2800 ad_attr->pcie_gen = ioc_attr->pcie_gen;
2801 ad_attr->pcie_lanes = ioc_attr->pcie_lanes;
2802 ad_attr->pcie_lanes_orig = ioc_attr->pcie_lanes_orig;
2803 ad_attr->asic_rev = ioc_attr->asic_rev;
2804
2805 bfa_ioc_get_pci_chip_rev(ioc, ad_attr->hw_ver);
2806 }
2807
2808 static enum bfa_ioc_type
2809 bfa_ioc_get_type(struct bfa_ioc *ioc)
2810 {
2811 if (ioc->clscode == BFI_PCIFN_CLASS_ETH)
2812 return BFA_IOC_TYPE_LL;
2813
2814 BUG_ON(!(ioc->clscode == BFI_PCIFN_CLASS_FC));
2815
2816 return (ioc->attr->port_mode == BFI_PORT_MODE_FC)
2817 ? BFA_IOC_TYPE_FC : BFA_IOC_TYPE_FCoE;
2818 }
2819
2820 static void
2821 bfa_ioc_get_adapter_serial_num(struct bfa_ioc *ioc, char *serial_num)
2822 {
2823 memcpy(serial_num,
2824 (void *)ioc->attr->brcd_serialnum,
2825 BFA_ADAPTER_SERIAL_NUM_LEN);
2826 }
2827
2828 static void
2829 bfa_ioc_get_adapter_fw_ver(struct bfa_ioc *ioc, char *fw_ver)
2830 {
2831 memcpy(fw_ver, ioc->attr->fw_version, BFA_VERSION_LEN);
2832 }
2833
2834 static void
2835 bfa_ioc_get_pci_chip_rev(struct bfa_ioc *ioc, char *chip_rev)
2836 {
2837 BUG_ON(!(chip_rev));
2838
2839 memset(chip_rev, 0, BFA_IOC_CHIP_REV_LEN);
2840
2841 chip_rev[0] = 'R';
2842 chip_rev[1] = 'e';
2843 chip_rev[2] = 'v';
2844 chip_rev[3] = '-';
2845 chip_rev[4] = ioc->attr->asic_rev;
2846 chip_rev[5] = '\0';
2847 }
2848
2849 static void
2850 bfa_ioc_get_adapter_optrom_ver(struct bfa_ioc *ioc, char *optrom_ver)
2851 {
2852 memcpy(optrom_ver, ioc->attr->optrom_version,
2853 BFA_VERSION_LEN);
2854 }
2855
2856 static void
2857 bfa_ioc_get_adapter_manufacturer(struct bfa_ioc *ioc, char *manufacturer)
2858 {
2859 memcpy(manufacturer, BFA_MFG_NAME, BFA_ADAPTER_MFG_NAME_LEN);
2860 }
2861
2862 static void
2863 bfa_ioc_get_adapter_model(struct bfa_ioc *ioc, char *model)
2864 {
2865 struct bfi_ioc_attr *ioc_attr;
2866
2867 BUG_ON(!(model));
2868 memset(model, 0, BFA_ADAPTER_MODEL_NAME_LEN);
2869
2870 ioc_attr = ioc->attr;
2871
2872 snprintf(model, BFA_ADAPTER_MODEL_NAME_LEN, "%s-%u",
2873 BFA_MFG_NAME, ioc_attr->card_type);
2874 }
2875
2876 static enum bfa_ioc_state
2877 bfa_ioc_get_state(struct bfa_ioc *ioc)
2878 {
2879 enum bfa_iocpf_state iocpf_st;
2880 enum bfa_ioc_state ioc_st = bfa_sm_to_state(ioc_sm_table, ioc->fsm);
2881
2882 if (ioc_st == BFA_IOC_ENABLING ||
2883 ioc_st == BFA_IOC_FAIL || ioc_st == BFA_IOC_INITFAIL) {
2884
2885 iocpf_st = bfa_sm_to_state(iocpf_sm_table, ioc->iocpf.fsm);
2886
2887 switch (iocpf_st) {
2888 case BFA_IOCPF_SEMWAIT:
2889 ioc_st = BFA_IOC_SEMWAIT;
2890 break;
2891
2892 case BFA_IOCPF_HWINIT:
2893 ioc_st = BFA_IOC_HWINIT;
2894 break;
2895
2896 case BFA_IOCPF_FWMISMATCH:
2897 ioc_st = BFA_IOC_FWMISMATCH;
2898 break;
2899
2900 case BFA_IOCPF_FAIL:
2901 ioc_st = BFA_IOC_FAIL;
2902 break;
2903
2904 case BFA_IOCPF_INITFAIL:
2905 ioc_st = BFA_IOC_INITFAIL;
2906 break;
2907
2908 default:
2909 break;
2910 }
2911 }
2912 return ioc_st;
2913 }
2914
2915 void
2916 bfa_nw_ioc_get_attr(struct bfa_ioc *ioc, struct bfa_ioc_attr *ioc_attr)
2917 {
2918 memset((void *)ioc_attr, 0, sizeof(struct bfa_ioc_attr));
2919
2920 ioc_attr->state = bfa_ioc_get_state(ioc);
2921 ioc_attr->port_id = bfa_ioc_portid(ioc);
2922 ioc_attr->port_mode = ioc->port_mode;
2923
2924 ioc_attr->port_mode_cfg = ioc->port_mode_cfg;
2925 ioc_attr->cap_bm = ioc->ad_cap_bm;
2926
2927 ioc_attr->ioc_type = bfa_ioc_get_type(ioc);
2928
2929 bfa_ioc_get_adapter_attr(ioc, &ioc_attr->adapter_attr);
2930
2931 ioc_attr->pci_attr.device_id = bfa_ioc_devid(ioc);
2932 ioc_attr->pci_attr.pcifn = bfa_ioc_pcifn(ioc);
2933 ioc_attr->def_fn = bfa_ioc_is_default(ioc);
2934 bfa_ioc_get_pci_chip_rev(ioc, ioc_attr->pci_attr.chip_rev);
2935 }
2936
2937 /* WWN public */
2938 static u64
2939 bfa_ioc_get_pwwn(struct bfa_ioc *ioc)
2940 {
2941 return ioc->attr->pwwn;
2942 }
2943
2944 mac_t
2945 bfa_nw_ioc_get_mac(struct bfa_ioc *ioc)
2946 {
2947 return ioc->attr->mac;
2948 }
2949
2950 /* Firmware failure detected. Start recovery actions. */
2951 static void
2952 bfa_ioc_recover(struct bfa_ioc *ioc)
2953 {
2954 pr_crit("Heart Beat of IOC has failed\n");
2955 bfa_ioc_stats(ioc, ioc_hbfails);
2956 bfa_ioc_stats_hb_count(ioc, ioc->hb_count);
2957 bfa_fsm_send_event(ioc, IOC_E_HBFAIL);
2958 }
2959
2960 /* BFA IOC PF private functions */
2961
2962 static void
2963 bfa_iocpf_enable(struct bfa_ioc *ioc)
2964 {
2965 bfa_fsm_send_event(&ioc->iocpf, IOCPF_E_ENABLE);
2966 }
2967
2968 static void
2969 bfa_iocpf_disable(struct bfa_ioc *ioc)
2970 {
2971 bfa_fsm_send_event(&ioc->iocpf, IOCPF_E_DISABLE);
2972 }
2973
2974 static void
2975 bfa_iocpf_fail(struct bfa_ioc *ioc)
2976 {
2977 bfa_fsm_send_event(&ioc->iocpf, IOCPF_E_FAIL);
2978 }
2979
2980 static void
2981 bfa_iocpf_initfail(struct bfa_ioc *ioc)
2982 {
2983 bfa_fsm_send_event(&ioc->iocpf, IOCPF_E_INITFAIL);
2984 }
2985
2986 static void
2987 bfa_iocpf_getattrfail(struct bfa_ioc *ioc)
2988 {
2989 bfa_fsm_send_event(&ioc->iocpf, IOCPF_E_GETATTRFAIL);
2990 }
2991
2992 static void
2993 bfa_iocpf_stop(struct bfa_ioc *ioc)
2994 {
2995 bfa_fsm_send_event(&ioc->iocpf, IOCPF_E_STOP);
2996 }
2997
2998 void
2999 bfa_nw_iocpf_timeout(void *ioc_arg)
3000 {
3001 struct bfa_ioc *ioc = (struct bfa_ioc *) ioc_arg;
3002 enum bfa_iocpf_state iocpf_st;
3003
3004 iocpf_st = bfa_sm_to_state(iocpf_sm_table, ioc->iocpf.fsm);
3005
3006 if (iocpf_st == BFA_IOCPF_HWINIT)
3007 bfa_ioc_poll_fwinit(ioc);
3008 else
3009 bfa_fsm_send_event(&ioc->iocpf, IOCPF_E_TIMEOUT);
3010 }
3011
3012 void
3013 bfa_nw_iocpf_sem_timeout(void *ioc_arg)
3014 {
3015 struct bfa_ioc *ioc = (struct bfa_ioc *) ioc_arg;
3016
3017 bfa_ioc_hw_sem_get(ioc);
3018 }
3019
3020 static void
3021 bfa_ioc_poll_fwinit(struct bfa_ioc *ioc)
3022 {
3023 u32 fwstate = bfa_ioc_get_cur_ioc_fwstate(ioc);
3024
3025 if (fwstate == BFI_IOC_DISABLED) {
3026 bfa_fsm_send_event(&ioc->iocpf, IOCPF_E_FWREADY);
3027 return;
3028 }
3029
3030 if (ioc->iocpf.poll_time >= BFA_IOC_TOV) {
3031 bfa_nw_iocpf_timeout(ioc);
3032 } else {
3033 ioc->iocpf.poll_time += BFA_IOC_POLL_TOV;
3034 mod_timer(&ioc->iocpf_timer, jiffies +
3035 msecs_to_jiffies(BFA_IOC_POLL_TOV));
3036 }
3037 }
3038
3039 /*
3040 * Flash module specific
3041 */
3042
3043 /*
3044 * FLASH DMA buffer should be big enough to hold both MFG block and
3045 * asic block(64k) at the same time and also should be 2k aligned to
3046 * avoid write segement to cross sector boundary.
3047 */
3048 #define BFA_FLASH_SEG_SZ 2048
3049 #define BFA_FLASH_DMA_BUF_SZ \
3050 roundup(0x010000 + sizeof(struct bfa_mfg_block), BFA_FLASH_SEG_SZ)
3051
3052 static void
3053 bfa_flash_cb(struct bfa_flash *flash)
3054 {
3055 flash->op_busy = 0;
3056 if (flash->cbfn)
3057 flash->cbfn(flash->cbarg, flash->status);
3058 }
3059
3060 static void
3061 bfa_flash_notify(void *cbarg, enum bfa_ioc_event event)
3062 {
3063 struct bfa_flash *flash = cbarg;
3064
3065 switch (event) {
3066 case BFA_IOC_E_DISABLED:
3067 case BFA_IOC_E_FAILED:
3068 if (flash->op_busy) {
3069 flash->status = BFA_STATUS_IOC_FAILURE;
3070 flash->cbfn(flash->cbarg, flash->status);
3071 flash->op_busy = 0;
3072 }
3073 break;
3074 default:
3075 break;
3076 }
3077 }
3078
3079 /*
3080 * Send flash write request.
3081 */
3082 static void
3083 bfa_flash_write_send(struct bfa_flash *flash)
3084 {
3085 struct bfi_flash_write_req *msg =
3086 (struct bfi_flash_write_req *) flash->mb.msg;
3087 u32 len;
3088
3089 msg->type = be32_to_cpu(flash->type);
3090 msg->instance = flash->instance;
3091 msg->offset = be32_to_cpu(flash->addr_off + flash->offset);
3092 len = (flash->residue < BFA_FLASH_DMA_BUF_SZ) ?
3093 flash->residue : BFA_FLASH_DMA_BUF_SZ;
3094 msg->length = be32_to_cpu(len);
3095
3096 /* indicate if it's the last msg of the whole write operation */
3097 msg->last = (len == flash->residue) ? 1 : 0;
3098
3099 bfi_h2i_set(msg->mh, BFI_MC_FLASH, BFI_FLASH_H2I_WRITE_REQ,
3100 bfa_ioc_portid(flash->ioc));
3101 bfa_alen_set(&msg->alen, len, flash->dbuf_pa);
3102 memcpy(flash->dbuf_kva, flash->ubuf + flash->offset, len);
3103 bfa_nw_ioc_mbox_queue(flash->ioc, &flash->mb, NULL, NULL);
3104
3105 flash->residue -= len;
3106 flash->offset += len;
3107 }
3108
3109 /**
3110 * bfa_flash_read_send - Send flash read request.
3111 *
3112 * @cbarg: callback argument
3113 */
3114 static void
3115 bfa_flash_read_send(void *cbarg)
3116 {
3117 struct bfa_flash *flash = cbarg;
3118 struct bfi_flash_read_req *msg =
3119 (struct bfi_flash_read_req *) flash->mb.msg;
3120 u32 len;
3121
3122 msg->type = be32_to_cpu(flash->type);
3123 msg->instance = flash->instance;
3124 msg->offset = be32_to_cpu(flash->addr_off + flash->offset);
3125 len = (flash->residue < BFA_FLASH_DMA_BUF_SZ) ?
3126 flash->residue : BFA_FLASH_DMA_BUF_SZ;
3127 msg->length = be32_to_cpu(len);
3128 bfi_h2i_set(msg->mh, BFI_MC_FLASH, BFI_FLASH_H2I_READ_REQ,
3129 bfa_ioc_portid(flash->ioc));
3130 bfa_alen_set(&msg->alen, len, flash->dbuf_pa);
3131 bfa_nw_ioc_mbox_queue(flash->ioc, &flash->mb, NULL, NULL);
3132 }
3133
3134 /**
3135 * bfa_flash_intr - Process flash response messages upon receiving interrupts.
3136 *
3137 * @flasharg: flash structure
3138 * @msg: message structure
3139 */
3140 static void
3141 bfa_flash_intr(void *flasharg, struct bfi_mbmsg *msg)
3142 {
3143 struct bfa_flash *flash = flasharg;
3144 u32 status;
3145
3146 union {
3147 struct bfi_flash_query_rsp *query;
3148 struct bfi_flash_write_rsp *write;
3149 struct bfi_flash_read_rsp *read;
3150 struct bfi_mbmsg *msg;
3151 } m;
3152
3153 m.msg = msg;
3154
3155 /* receiving response after ioc failure */
3156 if (!flash->op_busy && msg->mh.msg_id != BFI_FLASH_I2H_EVENT)
3157 return;
3158
3159 switch (msg->mh.msg_id) {
3160 case BFI_FLASH_I2H_QUERY_RSP:
3161 status = be32_to_cpu(m.query->status);
3162 if (status == BFA_STATUS_OK) {
3163 u32 i;
3164 struct bfa_flash_attr *attr, *f;
3165
3166 attr = (struct bfa_flash_attr *) flash->ubuf;
3167 f = (struct bfa_flash_attr *) flash->dbuf_kva;
3168 attr->status = be32_to_cpu(f->status);
3169 attr->npart = be32_to_cpu(f->npart);
3170 for (i = 0; i < attr->npart; i++) {
3171 attr->part[i].part_type =
3172 be32_to_cpu(f->part[i].part_type);
3173 attr->part[i].part_instance =
3174 be32_to_cpu(f->part[i].part_instance);
3175 attr->part[i].part_off =
3176 be32_to_cpu(f->part[i].part_off);
3177 attr->part[i].part_size =
3178 be32_to_cpu(f->part[i].part_size);
3179 attr->part[i].part_len =
3180 be32_to_cpu(f->part[i].part_len);
3181 attr->part[i].part_status =
3182 be32_to_cpu(f->part[i].part_status);
3183 }
3184 }
3185 flash->status = status;
3186 bfa_flash_cb(flash);
3187 break;
3188 case BFI_FLASH_I2H_WRITE_RSP:
3189 status = be32_to_cpu(m.write->status);
3190 if (status != BFA_STATUS_OK || flash->residue == 0) {
3191 flash->status = status;
3192 bfa_flash_cb(flash);
3193 } else
3194 bfa_flash_write_send(flash);
3195 break;
3196 case BFI_FLASH_I2H_READ_RSP:
3197 status = be32_to_cpu(m.read->status);
3198 if (status != BFA_STATUS_OK) {
3199 flash->status = status;
3200 bfa_flash_cb(flash);
3201 } else {
3202 u32 len = be32_to_cpu(m.read->length);
3203 memcpy(flash->ubuf + flash->offset,
3204 flash->dbuf_kva, len);
3205 flash->residue -= len;
3206 flash->offset += len;
3207 if (flash->residue == 0) {
3208 flash->status = status;
3209 bfa_flash_cb(flash);
3210 } else
3211 bfa_flash_read_send(flash);
3212 }
3213 break;
3214 case BFI_FLASH_I2H_BOOT_VER_RSP:
3215 case BFI_FLASH_I2H_EVENT:
3216 break;
3217 default:
3218 WARN_ON(1);
3219 }
3220 }
3221
3222 /*
3223 * Flash memory info API.
3224 */
3225 u32
3226 bfa_nw_flash_meminfo(void)
3227 {
3228 return roundup(BFA_FLASH_DMA_BUF_SZ, BFA_DMA_ALIGN_SZ);
3229 }
3230
3231 /**
3232 * bfa_nw_flash_attach - Flash attach API.
3233 *
3234 * @flash: flash structure
3235 * @ioc: ioc structure
3236 * @dev: device structure
3237 */
3238 void
3239 bfa_nw_flash_attach(struct bfa_flash *flash, struct bfa_ioc *ioc, void *dev)
3240 {
3241 flash->ioc = ioc;
3242 flash->cbfn = NULL;
3243 flash->cbarg = NULL;
3244 flash->op_busy = 0;
3245
3246 bfa_nw_ioc_mbox_regisr(flash->ioc, BFI_MC_FLASH, bfa_flash_intr, flash);
3247 bfa_q_qe_init(&flash->ioc_notify);
3248 bfa_ioc_notify_init(&flash->ioc_notify, bfa_flash_notify, flash);
3249 list_add_tail(&flash->ioc_notify.qe, &flash->ioc->notify_q);
3250 }
3251
3252 /**
3253 * bfa_nw_flash_memclaim - Claim memory for flash
3254 *
3255 * @flash: flash structure
3256 * @dm_kva: pointer to virtual memory address
3257 * @dm_pa: physical memory address
3258 */
3259 void
3260 bfa_nw_flash_memclaim(struct bfa_flash *flash, u8 *dm_kva, u64 dm_pa)
3261 {
3262 flash->dbuf_kva = dm_kva;
3263 flash->dbuf_pa = dm_pa;
3264 memset(flash->dbuf_kva, 0, BFA_FLASH_DMA_BUF_SZ);
3265 dm_kva += roundup(BFA_FLASH_DMA_BUF_SZ, BFA_DMA_ALIGN_SZ);
3266 dm_pa += roundup(BFA_FLASH_DMA_BUF_SZ, BFA_DMA_ALIGN_SZ);
3267 }
3268
3269 /**
3270 * bfa_nw_flash_get_attr - Get flash attribute.
3271 *
3272 * @flash: flash structure
3273 * @attr: flash attribute structure
3274 * @cbfn: callback function
3275 * @cbarg: callback argument
3276 *
3277 * Return status.
3278 */
3279 enum bfa_status
3280 bfa_nw_flash_get_attr(struct bfa_flash *flash, struct bfa_flash_attr *attr,
3281 bfa_cb_flash cbfn, void *cbarg)
3282 {
3283 struct bfi_flash_query_req *msg =
3284 (struct bfi_flash_query_req *) flash->mb.msg;
3285
3286 if (!bfa_nw_ioc_is_operational(flash->ioc))
3287 return BFA_STATUS_IOC_NON_OP;
3288
3289 if (flash->op_busy)
3290 return BFA_STATUS_DEVBUSY;
3291
3292 flash->op_busy = 1;
3293 flash->cbfn = cbfn;
3294 flash->cbarg = cbarg;
3295 flash->ubuf = (u8 *) attr;
3296
3297 bfi_h2i_set(msg->mh, BFI_MC_FLASH, BFI_FLASH_H2I_QUERY_REQ,
3298 bfa_ioc_portid(flash->ioc));
3299 bfa_alen_set(&msg->alen, sizeof(struct bfa_flash_attr), flash->dbuf_pa);
3300 bfa_nw_ioc_mbox_queue(flash->ioc, &flash->mb, NULL, NULL);
3301
3302 return BFA_STATUS_OK;
3303 }
3304
3305 /**
3306 * bfa_nw_flash_update_part - Update flash partition.
3307 *
3308 * @flash: flash structure
3309 * @type: flash partition type
3310 * @instance: flash partition instance
3311 * @buf: update data buffer
3312 * @len: data buffer length
3313 * @offset: offset relative to the partition starting address
3314 * @cbfn: callback function
3315 * @cbarg: callback argument
3316 *
3317 * Return status.
3318 */
3319 enum bfa_status
3320 bfa_nw_flash_update_part(struct bfa_flash *flash, u32 type, u8 instance,
3321 void *buf, u32 len, u32 offset,
3322 bfa_cb_flash cbfn, void *cbarg)
3323 {
3324 if (!bfa_nw_ioc_is_operational(flash->ioc))
3325 return BFA_STATUS_IOC_NON_OP;
3326
3327 /*
3328 * 'len' must be in word (4-byte) boundary
3329 */
3330 if (!len || (len & 0x03))
3331 return BFA_STATUS_FLASH_BAD_LEN;
3332
3333 if (type == BFA_FLASH_PART_MFG)
3334 return BFA_STATUS_EINVAL;
3335
3336 if (flash->op_busy)
3337 return BFA_STATUS_DEVBUSY;
3338
3339 flash->op_busy = 1;
3340 flash->cbfn = cbfn;
3341 flash->cbarg = cbarg;
3342 flash->type = type;
3343 flash->instance = instance;
3344 flash->residue = len;
3345 flash->offset = 0;
3346 flash->addr_off = offset;
3347 flash->ubuf = buf;
3348
3349 bfa_flash_write_send(flash);
3350
3351 return BFA_STATUS_OK;
3352 }
3353
3354 /**
3355 * bfa_nw_flash_read_part - Read flash partition.
3356 *
3357 * @flash: flash structure
3358 * @type: flash partition type
3359 * @instance: flash partition instance
3360 * @buf: read data buffer
3361 * @len: data buffer length
3362 * @offset: offset relative to the partition starting address
3363 * @cbfn: callback function
3364 * @cbarg: callback argument
3365 *
3366 * Return status.
3367 */
3368 enum bfa_status
3369 bfa_nw_flash_read_part(struct bfa_flash *flash, u32 type, u8 instance,
3370 void *buf, u32 len, u32 offset,
3371 bfa_cb_flash cbfn, void *cbarg)
3372 {
3373 if (!bfa_nw_ioc_is_operational(flash->ioc))
3374 return BFA_STATUS_IOC_NON_OP;
3375
3376 /*
3377 * 'len' must be in word (4-byte) boundary
3378 */
3379 if (!len || (len & 0x03))
3380 return BFA_STATUS_FLASH_BAD_LEN;
3381
3382 if (flash->op_busy)
3383 return BFA_STATUS_DEVBUSY;
3384
3385 flash->op_busy = 1;
3386 flash->cbfn = cbfn;
3387 flash->cbarg = cbarg;
3388 flash->type = type;
3389 flash->instance = instance;
3390 flash->residue = len;
3391 flash->offset = 0;
3392 flash->addr_off = offset;
3393 flash->ubuf = buf;
3394
3395 bfa_flash_read_send(flash);
3396
3397 return BFA_STATUS_OK;
3398 }
Linux kernel - Deliverables
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