2 * Linux network driver for Brocade Converged Network Adapter.
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
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.
14 * Copyright (c) 2005-2010 Brocade Communications Systems, Inc.
22 #include "bfi_ctreg.h"
26 * IOC local definitions
30 * Asic specific macros : see bfa_hw_cb.c and bfa_hw_ct.c for details.
33 #define bfa_ioc_firmware_lock(__ioc) \
34 ((__ioc)->ioc_hwif->ioc_firmware_lock(__ioc))
35 #define bfa_ioc_firmware_unlock(__ioc) \
36 ((__ioc)->ioc_hwif->ioc_firmware_unlock(__ioc))
37 #define bfa_ioc_reg_init(__ioc) ((__ioc)->ioc_hwif->ioc_reg_init(__ioc))
38 #define bfa_ioc_map_port(__ioc) ((__ioc)->ioc_hwif->ioc_map_port(__ioc))
39 #define bfa_ioc_notify_fail(__ioc) \
40 ((__ioc)->ioc_hwif->ioc_notify_fail(__ioc))
41 #define bfa_ioc_sync_start(__ioc) \
42 ((__ioc)->ioc_hwif->ioc_sync_start(__ioc))
43 #define bfa_ioc_sync_join(__ioc) \
44 ((__ioc)->ioc_hwif->ioc_sync_join(__ioc))
45 #define bfa_ioc_sync_leave(__ioc) \
46 ((__ioc)->ioc_hwif->ioc_sync_leave(__ioc))
47 #define bfa_ioc_sync_ack(__ioc) \
48 ((__ioc)->ioc_hwif->ioc_sync_ack(__ioc))
49 #define bfa_ioc_sync_complete(__ioc) \
50 ((__ioc)->ioc_hwif->ioc_sync_complete(__ioc))
52 #define bfa_ioc_mbox_cmd_pending(__ioc) \
53 (!list_empty(&((__ioc)->mbox_mod.cmd_q)) || \
54 readl((__ioc)->ioc_regs.hfn_mbox_cmd))
56 static bool bfa_nw_auto_recover = true;
59 * forward declarations
61 static void bfa_ioc_hw_sem_init(struct bfa_ioc *ioc);
62 static void bfa_ioc_hw_sem_get(struct bfa_ioc *ioc);
63 static void bfa_ioc_hw_sem_get_cancel(struct bfa_ioc *ioc);
64 static void bfa_ioc_hwinit(struct bfa_ioc *ioc, bool force);
65 static void bfa_ioc_send_enable(struct bfa_ioc *ioc);
66 static void bfa_ioc_send_disable(struct bfa_ioc *ioc);
67 static void bfa_ioc_send_getattr(struct bfa_ioc *ioc);
68 static void bfa_ioc_hb_monitor(struct bfa_ioc *ioc);
69 static void bfa_ioc_hb_stop(struct bfa_ioc *ioc);
70 static void bfa_ioc_reset(struct bfa_ioc *ioc, bool force);
71 static void bfa_ioc_mbox_poll(struct bfa_ioc *ioc);
72 static void bfa_ioc_mbox_flush(struct bfa_ioc *ioc);
73 static void bfa_ioc_recover(struct bfa_ioc *ioc);
74 static void bfa_ioc_check_attr_wwns(struct bfa_ioc *ioc);
75 static void bfa_ioc_event_notify(struct bfa_ioc *, enum bfa_ioc_event);
76 static void bfa_ioc_disable_comp(struct bfa_ioc *ioc);
77 static void bfa_ioc_lpu_stop(struct bfa_ioc *ioc);
78 static void bfa_ioc_fail_notify(struct bfa_ioc *ioc);
79 static void bfa_ioc_pf_enabled(struct bfa_ioc *ioc);
80 static void bfa_ioc_pf_disabled(struct bfa_ioc *ioc);
81 static void bfa_ioc_pf_initfailed(struct bfa_ioc *ioc);
82 static void bfa_ioc_pf_failed(struct bfa_ioc *ioc);
83 static void bfa_ioc_pf_fwmismatch(struct bfa_ioc *ioc);
84 static void bfa_ioc_boot(struct bfa_ioc *ioc, u32 boot_type,
86 static u32 bfa_ioc_smem_pgnum(struct bfa_ioc *ioc, u32 fmaddr);
87 static void bfa_ioc_get_adapter_serial_num(struct bfa_ioc *ioc,
89 static void bfa_ioc_get_adapter_fw_ver(struct bfa_ioc *ioc,
91 static void bfa_ioc_get_pci_chip_rev(struct bfa_ioc *ioc,
93 static void bfa_ioc_get_adapter_optrom_ver(struct bfa_ioc *ioc,
95 static void bfa_ioc_get_adapter_manufacturer(struct bfa_ioc *ioc,
97 static void bfa_ioc_get_adapter_model(struct bfa_ioc *ioc, char *model);
98 static u64 bfa_ioc_get_pwwn(struct bfa_ioc *ioc);
101 * IOC state machine definitions/declarations
104 IOC_E_RESET = 1, /*!< IOC reset request */
105 IOC_E_ENABLE = 2, /*!< IOC enable request */
106 IOC_E_DISABLE = 3, /*!< IOC disable request */
107 IOC_E_DETACH = 4, /*!< driver detach cleanup */
108 IOC_E_ENABLED = 5, /*!< f/w enabled */
109 IOC_E_FWRSP_GETATTR = 6, /*!< IOC get attribute response */
110 IOC_E_DISABLED = 7, /*!< f/w disabled */
111 IOC_E_INITFAILED = 8, /*!< failure notice by iocpf sm */
112 IOC_E_PFFAILED = 9, /*!< failure notice by iocpf sm */
113 IOC_E_HBFAIL = 10, /*!< heartbeat failure */
114 IOC_E_HWERROR = 11, /*!< hardware error interrupt */
115 IOC_E_TIMEOUT = 12, /*!< timeout */
118 bfa_fsm_state_decl(bfa_ioc, uninit, struct bfa_ioc, enum ioc_event);
119 bfa_fsm_state_decl(bfa_ioc, reset, struct bfa_ioc, enum ioc_event);
120 bfa_fsm_state_decl(bfa_ioc, enabling, struct bfa_ioc, enum ioc_event);
121 bfa_fsm_state_decl(bfa_ioc, getattr, struct bfa_ioc, enum ioc_event);
122 bfa_fsm_state_decl(bfa_ioc, op, struct bfa_ioc, enum ioc_event);
123 bfa_fsm_state_decl(bfa_ioc, fail_retry, struct bfa_ioc, enum ioc_event);
124 bfa_fsm_state_decl(bfa_ioc, fail, struct bfa_ioc, enum ioc_event);
125 bfa_fsm_state_decl(bfa_ioc, disabling, struct bfa_ioc, enum ioc_event);
126 bfa_fsm_state_decl(bfa_ioc, disabled, struct bfa_ioc, enum ioc_event);
128 static struct bfa_sm_table ioc_sm_table[] = {
129 {BFA_SM(bfa_ioc_sm_uninit), BFA_IOC_UNINIT},
130 {BFA_SM(bfa_ioc_sm_reset), BFA_IOC_RESET},
131 {BFA_SM(bfa_ioc_sm_enabling), BFA_IOC_ENABLING},
132 {BFA_SM(bfa_ioc_sm_getattr), BFA_IOC_GETATTR},
133 {BFA_SM(bfa_ioc_sm_op), BFA_IOC_OPERATIONAL},
134 {BFA_SM(bfa_ioc_sm_fail_retry), BFA_IOC_INITFAIL},
135 {BFA_SM(bfa_ioc_sm_fail), BFA_IOC_FAIL},
136 {BFA_SM(bfa_ioc_sm_disabling), BFA_IOC_DISABLING},
137 {BFA_SM(bfa_ioc_sm_disabled), BFA_IOC_DISABLED},
141 * IOCPF state machine definitions/declarations
145 * Forward declareations for iocpf state machine
147 static void bfa_iocpf_enable(struct bfa_ioc *ioc);
148 static void bfa_iocpf_disable(struct bfa_ioc *ioc);
149 static void bfa_iocpf_fail(struct bfa_ioc *ioc);
150 static void bfa_iocpf_initfail(struct bfa_ioc *ioc);
151 static void bfa_iocpf_getattrfail(struct bfa_ioc *ioc);
152 static void bfa_iocpf_stop(struct bfa_ioc *ioc);
155 * IOCPF state machine events
158 IOCPF_E_ENABLE = 1, /*!< IOCPF enable request */
159 IOCPF_E_DISABLE = 2, /*!< IOCPF disable request */
160 IOCPF_E_STOP = 3, /*!< stop on driver detach */
161 IOCPF_E_FWREADY = 4, /*!< f/w initialization done */
162 IOCPF_E_FWRSP_ENABLE = 5, /*!< enable f/w response */
163 IOCPF_E_FWRSP_DISABLE = 6, /*!< disable f/w response */
164 IOCPF_E_FAIL = 7, /*!< failure notice by ioc sm */
165 IOCPF_E_INITFAIL = 8, /*!< init fail notice by ioc sm */
166 IOCPF_E_GETATTRFAIL = 9, /*!< init fail notice by ioc sm */
167 IOCPF_E_SEMLOCKED = 10, /*!< h/w semaphore is locked */
168 IOCPF_E_TIMEOUT = 11, /*!< f/w response timeout */
174 enum bfa_iocpf_state {
175 BFA_IOCPF_RESET = 1, /*!< IOC is in reset state */
176 BFA_IOCPF_SEMWAIT = 2, /*!< Waiting for IOC h/w semaphore */
177 BFA_IOCPF_HWINIT = 3, /*!< IOC h/w is being initialized */
178 BFA_IOCPF_READY = 4, /*!< IOCPF is initialized */
179 BFA_IOCPF_INITFAIL = 5, /*!< IOCPF failed */
180 BFA_IOCPF_FAIL = 6, /*!< IOCPF failed */
181 BFA_IOCPF_DISABLING = 7, /*!< IOCPF is being disabled */
182 BFA_IOCPF_DISABLED = 8, /*!< IOCPF is disabled */
183 BFA_IOCPF_FWMISMATCH = 9, /*!< IOC f/w different from drivers */
186 bfa_fsm_state_decl(bfa_iocpf, reset, struct bfa_iocpf, enum iocpf_event);
187 bfa_fsm_state_decl(bfa_iocpf, fwcheck, struct bfa_iocpf, enum iocpf_event);
188 bfa_fsm_state_decl(bfa_iocpf, mismatch, struct bfa_iocpf, enum iocpf_event);
189 bfa_fsm_state_decl(bfa_iocpf, semwait, struct bfa_iocpf, enum iocpf_event);
190 bfa_fsm_state_decl(bfa_iocpf, hwinit, struct bfa_iocpf, enum iocpf_event);
191 bfa_fsm_state_decl(bfa_iocpf, enabling, struct bfa_iocpf, enum iocpf_event);
192 bfa_fsm_state_decl(bfa_iocpf, ready, struct bfa_iocpf, enum iocpf_event);
193 bfa_fsm_state_decl(bfa_iocpf, initfail_sync, struct bfa_iocpf,
195 bfa_fsm_state_decl(bfa_iocpf, initfail, struct bfa_iocpf, enum iocpf_event);
196 bfa_fsm_state_decl(bfa_iocpf, fail_sync, struct bfa_iocpf, enum iocpf_event);
197 bfa_fsm_state_decl(bfa_iocpf, fail, struct bfa_iocpf, enum iocpf_event);
198 bfa_fsm_state_decl(bfa_iocpf, disabling, struct bfa_iocpf, enum iocpf_event);
199 bfa_fsm_state_decl(bfa_iocpf, disabling_sync, struct bfa_iocpf,
201 bfa_fsm_state_decl(bfa_iocpf, disabled, struct bfa_iocpf, enum iocpf_event);
203 static struct bfa_sm_table iocpf_sm_table[] = {
204 {BFA_SM(bfa_iocpf_sm_reset), BFA_IOCPF_RESET},
205 {BFA_SM(bfa_iocpf_sm_fwcheck), BFA_IOCPF_FWMISMATCH},
206 {BFA_SM(bfa_iocpf_sm_mismatch), BFA_IOCPF_FWMISMATCH},
207 {BFA_SM(bfa_iocpf_sm_semwait), BFA_IOCPF_SEMWAIT},
208 {BFA_SM(bfa_iocpf_sm_hwinit), BFA_IOCPF_HWINIT},
209 {BFA_SM(bfa_iocpf_sm_enabling), BFA_IOCPF_HWINIT},
210 {BFA_SM(bfa_iocpf_sm_ready), BFA_IOCPF_READY},
211 {BFA_SM(bfa_iocpf_sm_initfail_sync), BFA_IOCPF_INITFAIL},
212 {BFA_SM(bfa_iocpf_sm_initfail), BFA_IOCPF_INITFAIL},
213 {BFA_SM(bfa_iocpf_sm_fail_sync), BFA_IOCPF_FAIL},
214 {BFA_SM(bfa_iocpf_sm_fail), BFA_IOCPF_FAIL},
215 {BFA_SM(bfa_iocpf_sm_disabling), BFA_IOCPF_DISABLING},
216 {BFA_SM(bfa_iocpf_sm_disabling_sync), BFA_IOCPF_DISABLING},
217 {BFA_SM(bfa_iocpf_sm_disabled), BFA_IOCPF_DISABLED},
225 * Beginning state. IOC uninit state.
228 bfa_ioc_sm_uninit_entry(struct bfa_ioc *ioc)
233 * IOC is in uninit state.
236 bfa_ioc_sm_uninit(struct bfa_ioc *ioc, enum ioc_event event)
240 bfa_fsm_set_state(ioc, bfa_ioc_sm_reset);
249 * Reset entry actions -- initialize state machine
252 bfa_ioc_sm_reset_entry(struct bfa_ioc *ioc)
254 bfa_fsm_set_state(&ioc->iocpf, bfa_iocpf_sm_reset);
258 * IOC is in reset state.
261 bfa_ioc_sm_reset(struct bfa_ioc *ioc, enum ioc_event event)
265 bfa_fsm_set_state(ioc, bfa_ioc_sm_enabling);
269 bfa_ioc_disable_comp(ioc);
273 bfa_fsm_set_state(ioc, bfa_ioc_sm_uninit);
282 bfa_ioc_sm_enabling_entry(struct bfa_ioc *ioc)
284 bfa_iocpf_enable(ioc);
288 * Host IOC function is being enabled, awaiting response from firmware.
289 * Semaphore is acquired.
292 bfa_ioc_sm_enabling(struct bfa_ioc *ioc, enum ioc_event event)
296 bfa_fsm_set_state(ioc, bfa_ioc_sm_getattr);
300 /* !!! fall through !!! */
302 ioc->cbfn->enable_cbfn(ioc->bfa, BFA_STATUS_IOC_FAILURE);
303 bfa_fsm_set_state(ioc, bfa_ioc_sm_fail_retry);
304 if (event != IOC_E_PFFAILED)
305 bfa_iocpf_initfail(ioc);
309 bfa_fsm_set_state(ioc, bfa_ioc_sm_disabling);
313 bfa_fsm_set_state(ioc, bfa_ioc_sm_uninit);
326 * Semaphore should be acquired for version check.
329 bfa_ioc_sm_getattr_entry(struct bfa_ioc *ioc)
331 mod_timer(&ioc->ioc_timer, jiffies +
332 msecs_to_jiffies(BFA_IOC_TOV));
333 bfa_ioc_send_getattr(ioc);
337 * IOC configuration in progress. Timer is active.
340 bfa_ioc_sm_getattr(struct bfa_ioc *ioc, enum ioc_event event)
343 case IOC_E_FWRSP_GETATTR:
344 del_timer(&ioc->ioc_timer);
345 bfa_ioc_check_attr_wwns(ioc);
346 bfa_fsm_set_state(ioc, bfa_ioc_sm_op);
351 del_timer(&ioc->ioc_timer);
354 ioc->cbfn->enable_cbfn(ioc->bfa, BFA_STATUS_IOC_FAILURE);
355 bfa_fsm_set_state(ioc, bfa_ioc_sm_fail_retry);
356 if (event != IOC_E_PFFAILED)
357 bfa_iocpf_getattrfail(ioc);
361 del_timer(&ioc->ioc_timer);
362 bfa_fsm_set_state(ioc, bfa_ioc_sm_disabling);
374 bfa_ioc_sm_op_entry(struct bfa_ioc *ioc)
376 ioc->cbfn->enable_cbfn(ioc->bfa, BFA_STATUS_OK);
377 bfa_ioc_hb_monitor(ioc);
381 bfa_ioc_sm_op(struct bfa_ioc *ioc, enum ioc_event event)
388 bfa_ioc_hb_stop(ioc);
389 bfa_fsm_set_state(ioc, bfa_ioc_sm_disabling);
394 bfa_ioc_hb_stop(ioc);
395 /* !!! fall through !!! */
397 bfa_ioc_fail_notify(ioc);
398 if (ioc->iocpf.auto_recover)
399 bfa_fsm_set_state(ioc, bfa_ioc_sm_fail_retry);
401 bfa_fsm_set_state(ioc, bfa_ioc_sm_fail);
403 if (event != IOC_E_PFFAILED)
413 bfa_ioc_sm_disabling_entry(struct bfa_ioc *ioc)
415 bfa_iocpf_disable(ioc);
419 * IOC is being desabled
422 bfa_ioc_sm_disabling(struct bfa_ioc *ioc, enum ioc_event event)
426 bfa_fsm_set_state(ioc, bfa_ioc_sm_disabled);
431 * No state change. Will move to disabled state
432 * after iocpf sm completes failure processing and
433 * moves to disabled state.
444 * IOC desable completion entry.
447 bfa_ioc_sm_disabled_entry(struct bfa_ioc *ioc)
449 bfa_ioc_disable_comp(ioc);
453 bfa_ioc_sm_disabled(struct bfa_ioc *ioc, enum ioc_event event)
457 bfa_fsm_set_state(ioc, bfa_ioc_sm_enabling);
461 ioc->cbfn->disable_cbfn(ioc->bfa);
465 bfa_fsm_set_state(ioc, bfa_ioc_sm_uninit);
475 bfa_ioc_sm_fail_retry_entry(struct bfa_ioc *ioc)
480 * Hardware initialization retry.
483 bfa_ioc_sm_fail_retry(struct bfa_ioc *ioc, enum ioc_event event)
487 bfa_fsm_set_state(ioc, bfa_ioc_sm_getattr);
493 * Initialization retry failed.
495 ioc->cbfn->enable_cbfn(ioc->bfa, BFA_STATUS_IOC_FAILURE);
496 if (event != IOC_E_PFFAILED)
497 bfa_iocpf_initfail(ioc);
500 case IOC_E_INITFAILED:
501 bfa_fsm_set_state(ioc, bfa_ioc_sm_fail);
508 bfa_fsm_set_state(ioc, bfa_ioc_sm_disabling);
512 bfa_fsm_set_state(ioc, bfa_ioc_sm_uninit);
522 bfa_ioc_sm_fail_entry(struct bfa_ioc *ioc)
530 bfa_ioc_sm_fail(struct bfa_ioc *ioc, enum ioc_event event)
534 ioc->cbfn->enable_cbfn(ioc->bfa, BFA_STATUS_IOC_FAILURE);
538 bfa_fsm_set_state(ioc, bfa_ioc_sm_disabling);
542 bfa_fsm_set_state(ioc, bfa_ioc_sm_uninit);
547 /* HB failure notification, ignore. */
556 * IOCPF State Machine
560 * Reset entry actions -- initialize state machine
563 bfa_iocpf_sm_reset_entry(struct bfa_iocpf *iocpf)
565 iocpf->retry_count = 0;
566 iocpf->auto_recover = bfa_nw_auto_recover;
570 * Beginning state. IOC is in reset state.
573 bfa_iocpf_sm_reset(struct bfa_iocpf *iocpf, enum iocpf_event event)
577 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_fwcheck);
589 * Semaphore should be acquired for version check.
592 bfa_iocpf_sm_fwcheck_entry(struct bfa_iocpf *iocpf)
594 bfa_ioc_hw_sem_init(iocpf->ioc);
595 bfa_ioc_hw_sem_get(iocpf->ioc);
599 * Awaiting h/w semaphore to continue with version check.
602 bfa_iocpf_sm_fwcheck(struct bfa_iocpf *iocpf, enum iocpf_event event)
604 struct bfa_ioc *ioc = iocpf->ioc;
607 case IOCPF_E_SEMLOCKED:
608 if (bfa_ioc_firmware_lock(ioc)) {
609 if (bfa_ioc_sync_start(ioc)) {
610 iocpf->retry_count = 0;
611 bfa_ioc_sync_join(ioc);
612 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_hwinit);
614 bfa_ioc_firmware_unlock(ioc);
615 bfa_nw_ioc_hw_sem_release(ioc);
616 mod_timer(&ioc->sem_timer, jiffies +
617 msecs_to_jiffies(BFA_IOC_HWSEM_TOV));
620 bfa_nw_ioc_hw_sem_release(ioc);
621 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_mismatch);
625 case IOCPF_E_DISABLE:
626 bfa_ioc_hw_sem_get_cancel(ioc);
627 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_reset);
628 bfa_ioc_pf_disabled(ioc);
632 bfa_ioc_hw_sem_get_cancel(ioc);
633 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_reset);
642 * Notify enable completion callback
645 bfa_iocpf_sm_mismatch_entry(struct bfa_iocpf *iocpf)
647 /* Call only the first time sm enters fwmismatch state. */
648 if (iocpf->retry_count == 0)
649 bfa_ioc_pf_fwmismatch(iocpf->ioc);
651 iocpf->retry_count++;
652 mod_timer(&(iocpf->ioc)->iocpf_timer, jiffies +
653 msecs_to_jiffies(BFA_IOC_TOV));
657 * Awaiting firmware version match.
660 bfa_iocpf_sm_mismatch(struct bfa_iocpf *iocpf, enum iocpf_event event)
662 struct bfa_ioc *ioc = iocpf->ioc;
665 case IOCPF_E_TIMEOUT:
666 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_fwcheck);
669 case IOCPF_E_DISABLE:
670 del_timer(&ioc->iocpf_timer);
671 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_reset);
672 bfa_ioc_pf_disabled(ioc);
676 del_timer(&ioc->iocpf_timer);
677 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_reset);
686 * Request for semaphore.
689 bfa_iocpf_sm_semwait_entry(struct bfa_iocpf *iocpf)
691 bfa_ioc_hw_sem_get(iocpf->ioc);
695 * Awaiting semaphore for h/w initialzation.
698 bfa_iocpf_sm_semwait(struct bfa_iocpf *iocpf, enum iocpf_event event)
700 struct bfa_ioc *ioc = iocpf->ioc;
703 case IOCPF_E_SEMLOCKED:
704 if (bfa_ioc_sync_complete(ioc)) {
705 bfa_ioc_sync_join(ioc);
706 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_hwinit);
708 bfa_nw_ioc_hw_sem_release(ioc);
709 mod_timer(&ioc->sem_timer, jiffies +
710 msecs_to_jiffies(BFA_IOC_HWSEM_TOV));
714 case IOCPF_E_DISABLE:
715 bfa_ioc_hw_sem_get_cancel(ioc);
716 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_disabling_sync);
725 bfa_iocpf_sm_hwinit_entry(struct bfa_iocpf *iocpf)
727 mod_timer(&(iocpf->ioc)->iocpf_timer, jiffies +
728 msecs_to_jiffies(BFA_IOC_TOV));
729 bfa_ioc_reset(iocpf->ioc, 0);
733 * Hardware is being initialized. Interrupts are enabled.
734 * Holding hardware semaphore lock.
737 bfa_iocpf_sm_hwinit(struct bfa_iocpf *iocpf, enum iocpf_event event)
739 struct bfa_ioc *ioc = iocpf->ioc;
742 case IOCPF_E_FWREADY:
743 del_timer(&ioc->iocpf_timer);
744 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_enabling);
747 case IOCPF_E_INITFAIL:
748 del_timer(&ioc->iocpf_timer);
750 * !!! fall through !!!
753 case IOCPF_E_TIMEOUT:
754 bfa_nw_ioc_hw_sem_release(ioc);
755 if (event == IOCPF_E_TIMEOUT)
756 bfa_ioc_pf_failed(ioc);
757 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_initfail_sync);
760 case IOCPF_E_DISABLE:
761 del_timer(&ioc->iocpf_timer);
762 bfa_ioc_sync_leave(ioc);
763 bfa_nw_ioc_hw_sem_release(ioc);
764 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_disabled);
773 bfa_iocpf_sm_enabling_entry(struct bfa_iocpf *iocpf)
775 mod_timer(&(iocpf->ioc)->iocpf_timer, jiffies +
776 msecs_to_jiffies(BFA_IOC_TOV));
777 bfa_ioc_send_enable(iocpf->ioc);
781 * Host IOC function is being enabled, awaiting response from firmware.
782 * Semaphore is acquired.
785 bfa_iocpf_sm_enabling(struct bfa_iocpf *iocpf, enum iocpf_event event)
787 struct bfa_ioc *ioc = iocpf->ioc;
790 case IOCPF_E_FWRSP_ENABLE:
791 del_timer(&ioc->iocpf_timer);
792 bfa_nw_ioc_hw_sem_release(ioc);
793 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_ready);
796 case IOCPF_E_INITFAIL:
797 del_timer(&ioc->iocpf_timer);
799 * !!! fall through !!!
801 case IOCPF_E_TIMEOUT:
802 bfa_nw_ioc_hw_sem_release(ioc);
803 if (event == IOCPF_E_TIMEOUT)
804 bfa_ioc_pf_failed(ioc);
805 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_initfail_sync);
808 case IOCPF_E_DISABLE:
809 del_timer(&ioc->iocpf_timer);
810 bfa_nw_ioc_hw_sem_release(ioc);
811 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_disabling);
814 case IOCPF_E_FWREADY:
815 bfa_ioc_send_enable(ioc);
824 bfa_nw_ioc_is_operational(struct bfa_ioc *ioc)
826 return bfa_fsm_cmp_state(ioc, bfa_ioc_sm_op);
830 bfa_iocpf_sm_ready_entry(struct bfa_iocpf *iocpf)
832 bfa_ioc_pf_enabled(iocpf->ioc);
836 bfa_iocpf_sm_ready(struct bfa_iocpf *iocpf, enum iocpf_event event)
838 struct bfa_ioc *ioc = iocpf->ioc;
841 case IOCPF_E_DISABLE:
842 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_disabling);
845 case IOCPF_E_GETATTRFAIL:
846 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_initfail_sync);
850 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_fail_sync);
853 case IOCPF_E_FWREADY:
854 bfa_ioc_pf_failed(ioc);
855 if (bfa_nw_ioc_is_operational(ioc))
856 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_fail_sync);
858 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_initfail_sync);
867 bfa_iocpf_sm_disabling_entry(struct bfa_iocpf *iocpf)
869 mod_timer(&(iocpf->ioc)->iocpf_timer, jiffies +
870 msecs_to_jiffies(BFA_IOC_TOV));
871 bfa_ioc_send_disable(iocpf->ioc);
875 * IOC is being disabled
878 bfa_iocpf_sm_disabling(struct bfa_iocpf *iocpf, enum iocpf_event event)
880 struct bfa_ioc *ioc = iocpf->ioc;
883 case IOCPF_E_FWRSP_DISABLE:
884 case IOCPF_E_FWREADY:
885 del_timer(&ioc->iocpf_timer);
886 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_disabling_sync);
890 del_timer(&ioc->iocpf_timer);
892 * !!! fall through !!!
895 case IOCPF_E_TIMEOUT:
896 writel(BFI_IOC_FAIL, ioc->ioc_regs.ioc_fwstate);
897 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_disabling_sync);
900 case IOCPF_E_FWRSP_ENABLE:
909 bfa_iocpf_sm_disabling_sync_entry(struct bfa_iocpf *iocpf)
911 bfa_ioc_hw_sem_get(iocpf->ioc);
915 * IOC hb ack request is being removed.
918 bfa_iocpf_sm_disabling_sync(struct bfa_iocpf *iocpf, enum iocpf_event event)
920 struct bfa_ioc *ioc = iocpf->ioc;
923 case IOCPF_E_SEMLOCKED:
924 bfa_ioc_sync_leave(ioc);
925 bfa_nw_ioc_hw_sem_release(ioc);
926 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_disabled);
938 * IOC disable completion entry.
941 bfa_iocpf_sm_disabled_entry(struct bfa_iocpf *iocpf)
943 bfa_ioc_mbox_flush(iocpf->ioc);
944 bfa_ioc_pf_disabled(iocpf->ioc);
948 bfa_iocpf_sm_disabled(struct bfa_iocpf *iocpf, enum iocpf_event event)
950 struct bfa_ioc *ioc = iocpf->ioc;
954 iocpf->retry_count = 0;
955 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_semwait);
959 bfa_ioc_firmware_unlock(ioc);
960 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_reset);
969 bfa_iocpf_sm_initfail_sync_entry(struct bfa_iocpf *iocpf)
971 bfa_ioc_hw_sem_get(iocpf->ioc);
975 * Hardware initialization failed.
978 bfa_iocpf_sm_initfail_sync(struct bfa_iocpf *iocpf, enum iocpf_event event)
980 struct bfa_ioc *ioc = iocpf->ioc;
983 case IOCPF_E_SEMLOCKED:
984 bfa_ioc_notify_fail(ioc);
985 bfa_ioc_sync_ack(ioc);
986 iocpf->retry_count++;
987 if (iocpf->retry_count >= BFA_IOC_HWINIT_MAX) {
988 bfa_ioc_sync_leave(ioc);
989 bfa_nw_ioc_hw_sem_release(ioc);
990 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_initfail);
992 if (bfa_ioc_sync_complete(ioc))
993 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_hwinit);
995 bfa_nw_ioc_hw_sem_release(ioc);
996 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_semwait);
1001 case IOCPF_E_DISABLE:
1002 bfa_ioc_hw_sem_get_cancel(ioc);
1003 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_disabling_sync);
1007 bfa_ioc_hw_sem_get_cancel(ioc);
1008 bfa_ioc_firmware_unlock(ioc);
1009 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_reset);
1016 bfa_sm_fault(event);
1021 bfa_iocpf_sm_initfail_entry(struct bfa_iocpf *iocpf)
1023 bfa_ioc_pf_initfailed(iocpf->ioc);
1027 * Hardware initialization failed.
1030 bfa_iocpf_sm_initfail(struct bfa_iocpf *iocpf, enum iocpf_event event)
1032 struct bfa_ioc *ioc = iocpf->ioc;
1035 case IOCPF_E_DISABLE:
1036 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_disabled);
1040 bfa_ioc_firmware_unlock(ioc);
1041 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_reset);
1045 bfa_sm_fault(event);
1050 bfa_iocpf_sm_fail_sync_entry(struct bfa_iocpf *iocpf)
1053 * Mark IOC as failed in hardware and stop firmware.
1055 bfa_ioc_lpu_stop(iocpf->ioc);
1058 * Flush any queued up mailbox requests.
1060 bfa_ioc_mbox_flush(iocpf->ioc);
1061 bfa_ioc_hw_sem_get(iocpf->ioc);
1065 * IOC is in failed state.
1068 bfa_iocpf_sm_fail_sync(struct bfa_iocpf *iocpf, enum iocpf_event event)
1070 struct bfa_ioc *ioc = iocpf->ioc;
1073 case IOCPF_E_SEMLOCKED:
1074 iocpf->retry_count = 0;
1075 bfa_ioc_sync_ack(ioc);
1076 bfa_ioc_notify_fail(ioc);
1077 if (!iocpf->auto_recover) {
1078 bfa_ioc_sync_leave(ioc);
1079 bfa_nw_ioc_hw_sem_release(ioc);
1080 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_fail);
1082 if (bfa_ioc_sync_complete(ioc))
1083 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_hwinit);
1085 bfa_nw_ioc_hw_sem_release(ioc);
1086 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_semwait);
1091 case IOCPF_E_DISABLE:
1092 bfa_ioc_hw_sem_get_cancel(ioc);
1093 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_disabling_sync);
1100 bfa_sm_fault(event);
1105 bfa_iocpf_sm_fail_entry(struct bfa_iocpf *iocpf)
1111 * IOC is in failed state.
1114 bfa_iocpf_sm_fail(struct bfa_iocpf *iocpf, enum iocpf_event event)
1117 case IOCPF_E_DISABLE:
1118 bfa_fsm_set_state(iocpf, bfa_iocpf_sm_disabled);
1122 bfa_sm_fault(event);
1127 * BFA IOC private functions
1131 * Notify common modules registered for notification.
1134 bfa_ioc_event_notify(struct bfa_ioc *ioc, enum bfa_ioc_event event)
1136 struct bfa_ioc_notify *notify;
1137 struct list_head *qe;
1139 list_for_each(qe, &ioc->notify_q) {
1140 notify = (struct bfa_ioc_notify *)qe;
1141 notify->cbfn(notify->cbarg, event);
1146 bfa_ioc_disable_comp(struct bfa_ioc *ioc)
1148 ioc->cbfn->disable_cbfn(ioc->bfa);
1149 bfa_ioc_event_notify(ioc, BFA_IOC_E_DISABLED);
1153 bfa_nw_ioc_sem_get(void __iomem *sem_reg)
1157 #define BFA_SEM_SPINCNT 3000
1159 r32 = readl(sem_reg);
1161 while (r32 && (cnt < BFA_SEM_SPINCNT)) {
1164 r32 = readl(sem_reg);
1170 BUG_ON(!(cnt < BFA_SEM_SPINCNT));
1175 bfa_nw_ioc_sem_release(void __iomem *sem_reg)
1181 bfa_ioc_hw_sem_init(struct bfa_ioc *ioc)
1183 struct bfi_ioc_image_hdr fwhdr;
1184 u32 fwstate = readl(ioc->ioc_regs.ioc_fwstate);
1186 if (fwstate == BFI_IOC_UNINIT)
1189 bfa_nw_ioc_fwver_get(ioc, &fwhdr);
1191 if (swab32(fwhdr.exec) == BFI_FWBOOT_TYPE_NORMAL)
1194 writel(BFI_IOC_UNINIT, ioc->ioc_regs.ioc_fwstate);
1197 * Try to lock and then unlock the semaphore.
1199 readl(ioc->ioc_regs.ioc_sem_reg);
1200 writel(1, ioc->ioc_regs.ioc_sem_reg);
1204 bfa_ioc_hw_sem_get(struct bfa_ioc *ioc)
1209 * First read to the semaphore register will return 0, subsequent reads
1210 * will return 1. Semaphore is released by writing 1 to the register
1212 r32 = readl(ioc->ioc_regs.ioc_sem_reg);
1214 bfa_fsm_send_event(&ioc->iocpf, IOCPF_E_SEMLOCKED);
1218 mod_timer(&ioc->sem_timer, jiffies +
1219 msecs_to_jiffies(BFA_IOC_HWSEM_TOV));
1223 bfa_nw_ioc_hw_sem_release(struct bfa_ioc *ioc)
1225 writel(1, ioc->ioc_regs.ioc_sem_reg);
1229 bfa_ioc_hw_sem_get_cancel(struct bfa_ioc *ioc)
1231 del_timer(&ioc->sem_timer);
1236 * Initialize LPU local memory (aka secondary memory / SRAM)
1239 bfa_ioc_lmem_init(struct bfa_ioc *ioc)
1243 #define PSS_LMEM_INIT_TIME 10000
1245 pss_ctl = readl(ioc->ioc_regs.pss_ctl_reg);
1246 pss_ctl &= ~__PSS_LMEM_RESET;
1247 pss_ctl |= __PSS_LMEM_INIT_EN;
1250 * i2c workaround 12.5khz clock
1252 pss_ctl |= __PSS_I2C_CLK_DIV(3UL);
1253 writel(pss_ctl, ioc->ioc_regs.pss_ctl_reg);
1256 * wait for memory initialization to be complete
1260 pss_ctl = readl(ioc->ioc_regs.pss_ctl_reg);
1262 } while (!(pss_ctl & __PSS_LMEM_INIT_DONE) && (i < PSS_LMEM_INIT_TIME));
1265 * If memory initialization is not successful, IOC timeout will catch
1268 BUG_ON(!(pss_ctl & __PSS_LMEM_INIT_DONE));
1270 pss_ctl &= ~(__PSS_LMEM_INIT_DONE | __PSS_LMEM_INIT_EN);
1271 writel(pss_ctl, ioc->ioc_regs.pss_ctl_reg);
1275 bfa_ioc_lpu_start(struct bfa_ioc *ioc)
1280 * Take processor out of reset.
1282 pss_ctl = readl(ioc->ioc_regs.pss_ctl_reg);
1283 pss_ctl &= ~__PSS_LPU0_RESET;
1285 writel(pss_ctl, ioc->ioc_regs.pss_ctl_reg);
1289 bfa_ioc_lpu_stop(struct bfa_ioc *ioc)
1294 * Put processors in reset.
1296 pss_ctl = readl(ioc->ioc_regs.pss_ctl_reg);
1297 pss_ctl |= (__PSS_LPU0_RESET | __PSS_LPU1_RESET);
1299 writel(pss_ctl, ioc->ioc_regs.pss_ctl_reg);
1303 * Get driver and firmware versions.
1306 bfa_nw_ioc_fwver_get(struct bfa_ioc *ioc, struct bfi_ioc_image_hdr *fwhdr)
1311 u32 *fwsig = (u32 *) fwhdr;
1313 pgnum = bfa_ioc_smem_pgnum(ioc, loff);
1314 writel(pgnum, ioc->ioc_regs.host_page_num_fn);
1316 for (i = 0; i < (sizeof(struct bfi_ioc_image_hdr) / sizeof(u32));
1319 swab32(readl((loff) + (ioc->ioc_regs.smem_page_start)));
1320 loff += sizeof(u32);
1325 * Returns TRUE if same.
1328 bfa_nw_ioc_fwver_cmp(struct bfa_ioc *ioc, struct bfi_ioc_image_hdr *fwhdr)
1330 struct bfi_ioc_image_hdr *drv_fwhdr;
1333 drv_fwhdr = (struct bfi_ioc_image_hdr *)
1334 bfa_cb_image_get_chunk(BFA_IOC_FWIMG_TYPE(ioc), 0);
1336 for (i = 0; i < BFI_IOC_MD5SUM_SZ; i++) {
1337 if (fwhdr->md5sum[i] != drv_fwhdr->md5sum[i])
1345 * Return true if current running version is valid. Firmware signature and
1346 * execution context (driver/bios) must match.
1349 bfa_ioc_fwver_valid(struct bfa_ioc *ioc, u32 boot_env)
1351 struct bfi_ioc_image_hdr fwhdr, *drv_fwhdr;
1353 bfa_nw_ioc_fwver_get(ioc, &fwhdr);
1354 drv_fwhdr = (struct bfi_ioc_image_hdr *)
1355 bfa_cb_image_get_chunk(BFA_IOC_FWIMG_TYPE(ioc), 0);
1357 if (fwhdr.signature != drv_fwhdr->signature)
1360 if (swab32(fwhdr.param) != boot_env)
1363 return bfa_nw_ioc_fwver_cmp(ioc, &fwhdr);
1367 * Conditionally flush any pending message from firmware at start.
1370 bfa_ioc_msgflush(struct bfa_ioc *ioc)
1374 r32 = readl(ioc->ioc_regs.lpu_mbox_cmd);
1376 writel(1, ioc->ioc_regs.lpu_mbox_cmd);
1380 * @img ioc_init_logic.jpg
1383 bfa_ioc_hwinit(struct bfa_ioc *ioc, bool force)
1385 enum bfi_ioc_state ioc_fwstate;
1389 ioc_fwstate = readl(ioc->ioc_regs.ioc_fwstate);
1391 boot_env = BFI_BOOT_LOADER_OS;
1394 ioc_fwstate = BFI_IOC_UNINIT;
1397 * check if firmware is valid
1399 fwvalid = (ioc_fwstate == BFI_IOC_UNINIT) ?
1400 false : bfa_ioc_fwver_valid(ioc, boot_env);
1403 bfa_ioc_boot(ioc, BFI_BOOT_TYPE_NORMAL, boot_env);
1408 * If hardware initialization is in progress (initialized by other IOC),
1409 * just wait for an initialization completion interrupt.
1411 if (ioc_fwstate == BFI_IOC_INITING) {
1412 ioc->cbfn->reset_cbfn(ioc->bfa);
1417 * If IOC function is disabled and firmware version is same,
1418 * just re-enable IOC.
1420 if (ioc_fwstate == BFI_IOC_DISABLED || ioc_fwstate == BFI_IOC_OP) {
1422 * When using MSI-X any pending firmware ready event should
1423 * be flushed. Otherwise MSI-X interrupts are not delivered.
1425 bfa_ioc_msgflush(ioc);
1426 ioc->cbfn->reset_cbfn(ioc->bfa);
1427 bfa_fsm_send_event(&ioc->iocpf, IOCPF_E_FWREADY);
1432 * Initialize the h/w for any other states.
1434 bfa_ioc_boot(ioc, BFI_BOOT_TYPE_NORMAL, boot_env);
1438 bfa_nw_ioc_timeout(void *ioc_arg)
1440 struct bfa_ioc *ioc = (struct bfa_ioc *) ioc_arg;
1442 bfa_fsm_send_event(ioc, IOC_E_TIMEOUT);
1446 bfa_ioc_mbox_send(struct bfa_ioc *ioc, void *ioc_msg, int len)
1448 u32 *msgp = (u32 *) ioc_msg;
1451 BUG_ON(!(len <= BFI_IOC_MSGLEN_MAX));
1454 * first write msg to mailbox registers
1456 for (i = 0; i < len / sizeof(u32); i++)
1457 writel(cpu_to_le32(msgp[i]),
1458 ioc->ioc_regs.hfn_mbox + i * sizeof(u32));
1460 for (; i < BFI_IOC_MSGLEN_MAX / sizeof(u32); i++)
1461 writel(0, ioc->ioc_regs.hfn_mbox + i * sizeof(u32));
1464 * write 1 to mailbox CMD to trigger LPU event
1466 writel(1, ioc->ioc_regs.hfn_mbox_cmd);
1467 (void) readl(ioc->ioc_regs.hfn_mbox_cmd);
1471 bfa_ioc_send_enable(struct bfa_ioc *ioc)
1473 struct bfi_ioc_ctrl_req enable_req;
1476 bfi_h2i_set(enable_req.mh, BFI_MC_IOC, BFI_IOC_H2I_ENABLE_REQ,
1477 bfa_ioc_portid(ioc));
1478 enable_req.ioc_class = ioc->ioc_mc;
1479 do_gettimeofday(&tv);
1480 enable_req.tv_sec = ntohl(tv.tv_sec);
1481 bfa_ioc_mbox_send(ioc, &enable_req, sizeof(struct bfi_ioc_ctrl_req));
1485 bfa_ioc_send_disable(struct bfa_ioc *ioc)
1487 struct bfi_ioc_ctrl_req disable_req;
1489 bfi_h2i_set(disable_req.mh, BFI_MC_IOC, BFI_IOC_H2I_DISABLE_REQ,
1490 bfa_ioc_portid(ioc));
1491 bfa_ioc_mbox_send(ioc, &disable_req, sizeof(struct bfi_ioc_ctrl_req));
1495 bfa_ioc_send_getattr(struct bfa_ioc *ioc)
1497 struct bfi_ioc_getattr_req attr_req;
1499 bfi_h2i_set(attr_req.mh, BFI_MC_IOC, BFI_IOC_H2I_GETATTR_REQ,
1500 bfa_ioc_portid(ioc));
1501 bfa_dma_be_addr_set(attr_req.attr_addr, ioc->attr_dma.pa);
1502 bfa_ioc_mbox_send(ioc, &attr_req, sizeof(attr_req));
1506 bfa_nw_ioc_hb_check(void *cbarg)
1508 struct bfa_ioc *ioc = cbarg;
1511 hb_count = readl(ioc->ioc_regs.heartbeat);
1512 if (ioc->hb_count == hb_count) {
1513 bfa_ioc_recover(ioc);
1516 ioc->hb_count = hb_count;
1519 bfa_ioc_mbox_poll(ioc);
1520 mod_timer(&ioc->hb_timer, jiffies +
1521 msecs_to_jiffies(BFA_IOC_HB_TOV));
1525 bfa_ioc_hb_monitor(struct bfa_ioc *ioc)
1527 ioc->hb_count = readl(ioc->ioc_regs.heartbeat);
1528 mod_timer(&ioc->hb_timer, jiffies +
1529 msecs_to_jiffies(BFA_IOC_HB_TOV));
1533 bfa_ioc_hb_stop(struct bfa_ioc *ioc)
1535 del_timer(&ioc->hb_timer);
1540 * Initiate a full firmware download.
1543 bfa_ioc_download_fw(struct bfa_ioc *ioc, u32 boot_type,
1553 * Initialize LMEM first before code download
1555 bfa_ioc_lmem_init(ioc);
1557 fwimg = bfa_cb_image_get_chunk(BFA_IOC_FWIMG_TYPE(ioc), chunkno);
1559 pgnum = bfa_ioc_smem_pgnum(ioc, loff);
1561 writel(pgnum, ioc->ioc_regs.host_page_num_fn);
1563 for (i = 0; i < bfa_cb_image_get_size(BFA_IOC_FWIMG_TYPE(ioc)); i++) {
1564 if (BFA_IOC_FLASH_CHUNK_NO(i) != chunkno) {
1565 chunkno = BFA_IOC_FLASH_CHUNK_NO(i);
1566 fwimg = bfa_cb_image_get_chunk(BFA_IOC_FWIMG_TYPE(ioc),
1567 BFA_IOC_FLASH_CHUNK_ADDR(chunkno));
1573 writel((swab32(fwimg[BFA_IOC_FLASH_OFFSET_IN_CHUNK(i)])),
1574 ((ioc->ioc_regs.smem_page_start) + (loff)));
1576 loff += sizeof(u32);
1579 * handle page offset wrap around
1581 loff = PSS_SMEM_PGOFF(loff);
1585 ioc->ioc_regs.host_page_num_fn);
1589 writel(bfa_ioc_smem_pgnum(ioc, 0),
1590 ioc->ioc_regs.host_page_num_fn);
1593 * Set boot type and boot param at the end.
1595 writel(boot_type, ((ioc->ioc_regs.smem_page_start)
1596 + (BFI_BOOT_TYPE_OFF)));
1597 writel(boot_env, ((ioc->ioc_regs.smem_page_start)
1598 + (BFI_BOOT_LOADER_OFF)));
1602 bfa_ioc_reset(struct bfa_ioc *ioc, bool force)
1604 bfa_ioc_hwinit(ioc, force);
1609 * Update BFA configuration from firmware configuration.
1612 bfa_ioc_getattr_reply(struct bfa_ioc *ioc)
1614 struct bfi_ioc_attr *attr = ioc->attr;
1616 attr->adapter_prop = ntohl(attr->adapter_prop);
1617 attr->card_type = ntohl(attr->card_type);
1618 attr->maxfrsize = ntohs(attr->maxfrsize);
1620 bfa_fsm_send_event(ioc, IOC_E_FWRSP_GETATTR);
1624 * Attach time initialization of mbox logic.
1627 bfa_ioc_mbox_attach(struct bfa_ioc *ioc)
1629 struct bfa_ioc_mbox_mod *mod = &ioc->mbox_mod;
1632 INIT_LIST_HEAD(&mod->cmd_q);
1633 for (mc = 0; mc < BFI_MC_MAX; mc++) {
1634 mod->mbhdlr[mc].cbfn = NULL;
1635 mod->mbhdlr[mc].cbarg = ioc->bfa;
1640 * Mbox poll timer -- restarts any pending mailbox requests.
1643 bfa_ioc_mbox_poll(struct bfa_ioc *ioc)
1645 struct bfa_ioc_mbox_mod *mod = &ioc->mbox_mod;
1646 struct bfa_mbox_cmd *cmd;
1650 * If no command pending, do nothing
1652 if (list_empty(&mod->cmd_q))
1656 * If previous command is not yet fetched by firmware, do nothing
1658 stat = readl(ioc->ioc_regs.hfn_mbox_cmd);
1663 * Enqueue command to firmware.
1665 bfa_q_deq(&mod->cmd_q, &cmd);
1666 bfa_ioc_mbox_send(ioc, cmd->msg, sizeof(cmd->msg));
1670 * Cleanup any pending requests.
1673 bfa_ioc_mbox_flush(struct bfa_ioc *ioc)
1675 struct bfa_ioc_mbox_mod *mod = &ioc->mbox_mod;
1676 struct bfa_mbox_cmd *cmd;
1678 while (!list_empty(&mod->cmd_q))
1679 bfa_q_deq(&mod->cmd_q, &cmd);
1683 bfa_ioc_fail_notify(struct bfa_ioc *ioc)
1686 * Notify driver and common modules registered for notification.
1688 ioc->cbfn->hbfail_cbfn(ioc->bfa);
1689 bfa_ioc_event_notify(ioc, BFA_IOC_E_FAILED);
1693 bfa_ioc_pf_enabled(struct bfa_ioc *ioc)
1695 bfa_fsm_send_event(ioc, IOC_E_ENABLED);
1699 bfa_ioc_pf_disabled(struct bfa_ioc *ioc)
1701 bfa_fsm_send_event(ioc, IOC_E_DISABLED);
1705 bfa_ioc_pf_initfailed(struct bfa_ioc *ioc)
1707 bfa_fsm_send_event(ioc, IOC_E_INITFAILED);
1711 bfa_ioc_pf_failed(struct bfa_ioc *ioc)
1713 bfa_fsm_send_event(ioc, IOC_E_PFFAILED);
1717 bfa_ioc_pf_fwmismatch(struct bfa_ioc *ioc)
1720 * Provide enable completion callback and AEN notification.
1722 ioc->cbfn->enable_cbfn(ioc->bfa, BFA_STATUS_IOC_FAILURE);
1728 static enum bfa_status
1729 bfa_ioc_pll_init(struct bfa_ioc *ioc)
1732 * Hold semaphore so that nobody can access the chip during init.
1734 bfa_nw_ioc_sem_get(ioc->ioc_regs.ioc_init_sem_reg);
1736 bfa_ioc_pll_init_asic(ioc);
1738 ioc->pllinit = true;
1740 * release semaphore.
1742 bfa_nw_ioc_sem_release(ioc->ioc_regs.ioc_init_sem_reg);
1744 return BFA_STATUS_OK;
1748 * Interface used by diag module to do firmware boot with memory test
1749 * as the entry vector.
1752 bfa_ioc_boot(struct bfa_ioc *ioc, u32 boot_type, u32 boot_env)
1756 bfa_ioc_stats(ioc, ioc_boots);
1758 if (bfa_ioc_pll_init(ioc) != BFA_STATUS_OK)
1762 * Initialize IOC state of all functions on a chip reset.
1764 rb = ioc->pcidev.pci_bar_kva;
1765 if (boot_type == BFI_BOOT_TYPE_MEMTEST) {
1766 writel(BFI_IOC_MEMTEST, (rb + BFA_IOC0_STATE_REG));
1767 writel(BFI_IOC_MEMTEST, (rb + BFA_IOC1_STATE_REG));
1769 writel(BFI_IOC_INITING, (rb + BFA_IOC0_STATE_REG));
1770 writel(BFI_IOC_INITING, (rb + BFA_IOC1_STATE_REG));
1773 bfa_ioc_msgflush(ioc);
1774 bfa_ioc_download_fw(ioc, boot_type, boot_env);
1777 * Enable interrupts just before starting LPU
1779 ioc->cbfn->reset_cbfn(ioc->bfa);
1780 bfa_ioc_lpu_start(ioc);
1784 * Enable/disable IOC failure auto recovery.
1787 bfa_nw_ioc_auto_recover(bool auto_recover)
1789 bfa_nw_auto_recover = auto_recover;
1793 bfa_ioc_msgget(struct bfa_ioc *ioc, void *mbmsg)
1802 for (i = 0; i < (sizeof(union bfi_ioc_i2h_msg_u) / sizeof(u32));
1804 r32 = readl(ioc->ioc_regs.lpu_mbox +
1806 msgp[i] = htonl(r32);
1810 * turn off mailbox interrupt by clearing mailbox status
1812 writel(1, ioc->ioc_regs.lpu_mbox_cmd);
1813 readl(ioc->ioc_regs.lpu_mbox_cmd);
1817 bfa_ioc_isr(struct bfa_ioc *ioc, struct bfi_mbmsg *m)
1819 union bfi_ioc_i2h_msg_u *msg;
1820 struct bfa_iocpf *iocpf = &ioc->iocpf;
1822 msg = (union bfi_ioc_i2h_msg_u *) m;
1824 bfa_ioc_stats(ioc, ioc_isrs);
1826 switch (msg->mh.msg_id) {
1827 case BFI_IOC_I2H_HBEAT:
1830 case BFI_IOC_I2H_READY_EVENT:
1831 bfa_fsm_send_event(iocpf, IOCPF_E_FWREADY);
1834 case BFI_IOC_I2H_ENABLE_REPLY:
1835 bfa_fsm_send_event(iocpf, IOCPF_E_FWRSP_ENABLE);
1838 case BFI_IOC_I2H_DISABLE_REPLY:
1839 bfa_fsm_send_event(iocpf, IOCPF_E_FWRSP_DISABLE);
1842 case BFI_IOC_I2H_GETATTR_REPLY:
1843 bfa_ioc_getattr_reply(ioc);
1852 * IOC attach time initialization and setup.
1854 * @param[in] ioc memory for IOC
1855 * @param[in] bfa driver instance structure
1858 bfa_nw_ioc_attach(struct bfa_ioc *ioc, void *bfa, struct bfa_ioc_cbfn *cbfn)
1862 ioc->fcmode = false;
1863 ioc->pllinit = false;
1864 ioc->dbg_fwsave_once = true;
1865 ioc->iocpf.ioc = ioc;
1867 bfa_ioc_mbox_attach(ioc);
1868 INIT_LIST_HEAD(&ioc->notify_q);
1870 bfa_fsm_set_state(ioc, bfa_ioc_sm_uninit);
1871 bfa_fsm_send_event(ioc, IOC_E_RESET);
1875 * Driver detach time IOC cleanup.
1878 bfa_nw_ioc_detach(struct bfa_ioc *ioc)
1880 bfa_fsm_send_event(ioc, IOC_E_DETACH);
1884 * Setup IOC PCI properties.
1886 * @param[in] pcidev PCI device information for this IOC
1889 bfa_nw_ioc_pci_init(struct bfa_ioc *ioc, struct bfa_pcidev *pcidev,
1893 ioc->pcidev = *pcidev;
1894 ioc->ctdev = bfa_asic_id_ct(ioc->pcidev.device_id);
1895 ioc->cna = ioc->ctdev && !ioc->fcmode;
1897 bfa_nw_ioc_set_ct_hwif(ioc);
1899 bfa_ioc_map_port(ioc);
1900 bfa_ioc_reg_init(ioc);
1904 * Initialize IOC dma memory
1906 * @param[in] dm_kva kernel virtual address of IOC dma memory
1907 * @param[in] dm_pa physical address of IOC dma memory
1910 bfa_nw_ioc_mem_claim(struct bfa_ioc *ioc, u8 *dm_kva, u64 dm_pa)
1913 * dma memory for firmware attribute
1915 ioc->attr_dma.kva = dm_kva;
1916 ioc->attr_dma.pa = dm_pa;
1917 ioc->attr = (struct bfi_ioc_attr *) dm_kva;
1921 * Return size of dma memory required.
1924 bfa_nw_ioc_meminfo(void)
1926 return roundup(sizeof(struct bfi_ioc_attr), BFA_DMA_ALIGN_SZ);
1930 bfa_nw_ioc_enable(struct bfa_ioc *ioc)
1932 bfa_ioc_stats(ioc, ioc_enables);
1933 ioc->dbg_fwsave_once = true;
1935 bfa_fsm_send_event(ioc, IOC_E_ENABLE);
1939 bfa_nw_ioc_disable(struct bfa_ioc *ioc)
1941 bfa_ioc_stats(ioc, ioc_disables);
1942 bfa_fsm_send_event(ioc, IOC_E_DISABLE);
1946 bfa_ioc_smem_pgnum(struct bfa_ioc *ioc, u32 fmaddr)
1948 return PSS_SMEM_PGNUM(ioc->ioc_regs.smem_pg0, fmaddr);
1952 * Register mailbox message handler function, to be called by common modules
1955 bfa_nw_ioc_mbox_regisr(struct bfa_ioc *ioc, enum bfi_mclass mc,
1956 bfa_ioc_mbox_mcfunc_t cbfn, void *cbarg)
1958 struct bfa_ioc_mbox_mod *mod = &ioc->mbox_mod;
1960 mod->mbhdlr[mc].cbfn = cbfn;
1961 mod->mbhdlr[mc].cbarg = cbarg;
1965 * Queue a mailbox command request to firmware. Waits if mailbox is busy.
1966 * Responsibility of caller to serialize
1968 * @param[in] ioc IOC instance
1969 * @param[i] cmd Mailbox command
1972 bfa_nw_ioc_mbox_queue(struct bfa_ioc *ioc, struct bfa_mbox_cmd *cmd)
1974 struct bfa_ioc_mbox_mod *mod = &ioc->mbox_mod;
1978 * If a previous command is pending, queue new command
1980 if (!list_empty(&mod->cmd_q)) {
1981 list_add_tail(&cmd->qe, &mod->cmd_q);
1986 * If mailbox is busy, queue command for poll timer
1988 stat = readl(ioc->ioc_regs.hfn_mbox_cmd);
1990 list_add_tail(&cmd->qe, &mod->cmd_q);
1995 * mailbox is free -- queue command to firmware
1997 bfa_ioc_mbox_send(ioc, cmd->msg, sizeof(cmd->msg));
2003 * Handle mailbox interrupts
2006 bfa_nw_ioc_mbox_isr(struct bfa_ioc *ioc)
2008 struct bfa_ioc_mbox_mod *mod = &ioc->mbox_mod;
2012 bfa_ioc_msgget(ioc, &m);
2015 * Treat IOC message class as special.
2017 mc = m.mh.msg_class;
2018 if (mc == BFI_MC_IOC) {
2019 bfa_ioc_isr(ioc, &m);
2023 if ((mc >= BFI_MC_MAX) || (mod->mbhdlr[mc].cbfn == NULL))
2026 mod->mbhdlr[mc].cbfn(mod->mbhdlr[mc].cbarg, &m);
2030 bfa_nw_ioc_error_isr(struct bfa_ioc *ioc)
2032 bfa_fsm_send_event(ioc, IOC_E_HWERROR);
2036 * return true if IOC is disabled
2039 bfa_nw_ioc_is_disabled(struct bfa_ioc *ioc)
2041 return bfa_fsm_cmp_state(ioc, bfa_ioc_sm_disabling) ||
2042 bfa_fsm_cmp_state(ioc, bfa_ioc_sm_disabled);
2046 * Add to IOC heartbeat failure notification queue. To be used by common
2047 * modules such as cee, port, diag.
2050 bfa_nw_ioc_notify_register(struct bfa_ioc *ioc,
2051 struct bfa_ioc_notify *notify)
2053 list_add_tail(¬ify->qe, &ioc->notify_q);
2056 #define BFA_MFG_NAME "Brocade"
2058 bfa_ioc_get_adapter_attr(struct bfa_ioc *ioc,
2059 struct bfa_adapter_attr *ad_attr)
2061 struct bfi_ioc_attr *ioc_attr;
2063 ioc_attr = ioc->attr;
2065 bfa_ioc_get_adapter_serial_num(ioc, ad_attr->serial_num);
2066 bfa_ioc_get_adapter_fw_ver(ioc, ad_attr->fw_ver);
2067 bfa_ioc_get_adapter_optrom_ver(ioc, ad_attr->optrom_ver);
2068 bfa_ioc_get_adapter_manufacturer(ioc, ad_attr->manufacturer);
2069 memcpy(&ad_attr->vpd, &ioc_attr->vpd,
2070 sizeof(struct bfa_mfg_vpd));
2072 ad_attr->nports = bfa_ioc_get_nports(ioc);
2073 ad_attr->max_speed = bfa_ioc_speed_sup(ioc);
2075 bfa_ioc_get_adapter_model(ioc, ad_attr->model);
2076 /* For now, model descr uses same model string */
2077 bfa_ioc_get_adapter_model(ioc, ad_attr->model_descr);
2079 ad_attr->card_type = ioc_attr->card_type;
2080 ad_attr->is_mezz = bfa_mfg_is_mezz(ioc_attr->card_type);
2082 if (BFI_ADAPTER_IS_SPECIAL(ioc_attr->adapter_prop))
2083 ad_attr->prototype = 1;
2085 ad_attr->prototype = 0;
2087 ad_attr->pwwn = bfa_ioc_get_pwwn(ioc);
2088 ad_attr->mac = bfa_nw_ioc_get_mac(ioc);
2090 ad_attr->pcie_gen = ioc_attr->pcie_gen;
2091 ad_attr->pcie_lanes = ioc_attr->pcie_lanes;
2092 ad_attr->pcie_lanes_orig = ioc_attr->pcie_lanes_orig;
2093 ad_attr->asic_rev = ioc_attr->asic_rev;
2095 bfa_ioc_get_pci_chip_rev(ioc, ad_attr->hw_ver);
2097 ad_attr->cna_capable = ioc->cna;
2098 ad_attr->trunk_capable = (ad_attr->nports > 1) && !ioc->cna;
2101 static enum bfa_ioc_type
2102 bfa_ioc_get_type(struct bfa_ioc *ioc)
2104 if (!ioc->ctdev || ioc->fcmode)
2105 return BFA_IOC_TYPE_FC;
2106 else if (ioc->ioc_mc == BFI_MC_IOCFC)
2107 return BFA_IOC_TYPE_FCoE;
2108 else if (ioc->ioc_mc == BFI_MC_LL)
2109 return BFA_IOC_TYPE_LL;
2111 BUG_ON(!(ioc->ioc_mc == BFI_MC_LL));
2112 return BFA_IOC_TYPE_LL;
2117 bfa_ioc_get_adapter_serial_num(struct bfa_ioc *ioc, char *serial_num)
2119 memset(serial_num, 0, BFA_ADAPTER_SERIAL_NUM_LEN);
2121 (void *)ioc->attr->brcd_serialnum,
2122 BFA_ADAPTER_SERIAL_NUM_LEN);
2126 bfa_ioc_get_adapter_fw_ver(struct bfa_ioc *ioc, char *fw_ver)
2128 memset(fw_ver, 0, BFA_VERSION_LEN);
2129 memcpy(fw_ver, ioc->attr->fw_version, BFA_VERSION_LEN);
2133 bfa_ioc_get_pci_chip_rev(struct bfa_ioc *ioc, char *chip_rev)
2135 BUG_ON(!(chip_rev));
2137 memset(chip_rev, 0, BFA_IOC_CHIP_REV_LEN);
2143 chip_rev[4] = ioc->attr->asic_rev;
2148 bfa_ioc_get_adapter_optrom_ver(struct bfa_ioc *ioc, char *optrom_ver)
2150 memset(optrom_ver, 0, BFA_VERSION_LEN);
2151 memcpy(optrom_ver, ioc->attr->optrom_version,
2156 bfa_ioc_get_adapter_manufacturer(struct bfa_ioc *ioc, char *manufacturer)
2158 memset(manufacturer, 0, BFA_ADAPTER_MFG_NAME_LEN);
2159 memcpy(manufacturer, BFA_MFG_NAME, BFA_ADAPTER_MFG_NAME_LEN);
2163 bfa_ioc_get_adapter_model(struct bfa_ioc *ioc, char *model)
2165 struct bfi_ioc_attr *ioc_attr;
2168 memset(model, 0, BFA_ADAPTER_MODEL_NAME_LEN);
2170 ioc_attr = ioc->attr;
2175 snprintf(model, BFA_ADAPTER_MODEL_NAME_LEN, "%s-%u",
2176 BFA_MFG_NAME, ioc_attr->card_type);
2179 static enum bfa_ioc_state
2180 bfa_ioc_get_state(struct bfa_ioc *ioc)
2182 enum bfa_iocpf_state iocpf_st;
2183 enum bfa_ioc_state ioc_st = bfa_sm_to_state(ioc_sm_table, ioc->fsm);
2185 if (ioc_st == BFA_IOC_ENABLING ||
2186 ioc_st == BFA_IOC_FAIL || ioc_st == BFA_IOC_INITFAIL) {
2188 iocpf_st = bfa_sm_to_state(iocpf_sm_table, ioc->iocpf.fsm);
2191 case BFA_IOCPF_SEMWAIT:
2192 ioc_st = BFA_IOC_SEMWAIT;
2195 case BFA_IOCPF_HWINIT:
2196 ioc_st = BFA_IOC_HWINIT;
2199 case BFA_IOCPF_FWMISMATCH:
2200 ioc_st = BFA_IOC_FWMISMATCH;
2203 case BFA_IOCPF_FAIL:
2204 ioc_st = BFA_IOC_FAIL;
2207 case BFA_IOCPF_INITFAIL:
2208 ioc_st = BFA_IOC_INITFAIL;
2219 bfa_nw_ioc_get_attr(struct bfa_ioc *ioc, struct bfa_ioc_attr *ioc_attr)
2221 memset((void *)ioc_attr, 0, sizeof(struct bfa_ioc_attr));
2223 ioc_attr->state = bfa_ioc_get_state(ioc);
2224 ioc_attr->port_id = ioc->port_id;
2226 ioc_attr->ioc_type = bfa_ioc_get_type(ioc);
2228 bfa_ioc_get_adapter_attr(ioc, &ioc_attr->adapter_attr);
2230 ioc_attr->pci_attr.device_id = ioc->pcidev.device_id;
2231 ioc_attr->pci_attr.pcifn = ioc->pcidev.pci_func;
2232 bfa_ioc_get_pci_chip_rev(ioc, ioc_attr->pci_attr.chip_rev);
2239 bfa_ioc_get_pwwn(struct bfa_ioc *ioc)
2241 return ioc->attr->pwwn;
2245 bfa_nw_ioc_get_mac(struct bfa_ioc *ioc)
2247 return ioc->attr->mac;
2251 * Firmware failure detected. Start recovery actions.
2254 bfa_ioc_recover(struct bfa_ioc *ioc)
2256 pr_crit("Heart Beat of IOC has failed\n");
2257 bfa_ioc_stats(ioc, ioc_hbfails);
2258 bfa_fsm_send_event(ioc, IOC_E_HBFAIL);
2262 bfa_ioc_check_attr_wwns(struct bfa_ioc *ioc)
2264 if (bfa_ioc_get_type(ioc) == BFA_IOC_TYPE_LL)
2269 * @dg hal_iocpf_pvt BFA IOC PF private functions
2274 bfa_iocpf_enable(struct bfa_ioc *ioc)
2276 bfa_fsm_send_event(&ioc->iocpf, IOCPF_E_ENABLE);
2280 bfa_iocpf_disable(struct bfa_ioc *ioc)
2282 bfa_fsm_send_event(&ioc->iocpf, IOCPF_E_DISABLE);
2286 bfa_iocpf_fail(struct bfa_ioc *ioc)
2288 bfa_fsm_send_event(&ioc->iocpf, IOCPF_E_FAIL);
2292 bfa_iocpf_initfail(struct bfa_ioc *ioc)
2294 bfa_fsm_send_event(&ioc->iocpf, IOCPF_E_INITFAIL);
2298 bfa_iocpf_getattrfail(struct bfa_ioc *ioc)
2300 bfa_fsm_send_event(&ioc->iocpf, IOCPF_E_GETATTRFAIL);
2304 bfa_iocpf_stop(struct bfa_ioc *ioc)
2306 bfa_fsm_send_event(&ioc->iocpf, IOCPF_E_STOP);
2310 bfa_nw_iocpf_timeout(void *ioc_arg)
2312 struct bfa_ioc *ioc = (struct bfa_ioc *) ioc_arg;
2314 bfa_fsm_send_event(&ioc->iocpf, IOCPF_E_TIMEOUT);
2318 bfa_nw_iocpf_sem_timeout(void *ioc_arg)
2320 struct bfa_ioc *ioc = (struct bfa_ioc *) ioc_arg;
2322 bfa_ioc_hw_sem_get(ioc);