Lines Matching +full:reboot +full:- +full:offset
1 // SPDX-License-Identifier: GPL-2.0-only
4 * Copyright 2008-2013 Solarflare Communications Inc.
18 * Management-Controller-to-Driver Interface
25 /* A reboot/assertion causes the MCDI status word to be set after the
26 * command word is set or a REBOOT event is sent. If we notice a reboot
58 "Enable MCDI logging on newly-probed functions");
65 int rc = -ENOMEM; in efx_mcdi_init()
67 efx->mcdi = kzalloc(sizeof(*efx->mcdi), GFP_KERNEL); in efx_mcdi_init()
68 if (!efx->mcdi) in efx_mcdi_init()
72 mcdi->efx = efx; in efx_mcdi_init()
74 /* consuming code assumes buffer is page-sized */ in efx_mcdi_init()
75 mcdi->logging_buffer = (char *)__get_free_page(GFP_KERNEL); in efx_mcdi_init()
76 if (!mcdi->logging_buffer) in efx_mcdi_init()
78 mcdi->logging_enabled = mcdi_logging_default; in efx_mcdi_init()
80 init_waitqueue_head(&mcdi->wq); in efx_mcdi_init()
81 init_waitqueue_head(&mcdi->proxy_rx_wq); in efx_mcdi_init()
82 spin_lock_init(&mcdi->iface_lock); in efx_mcdi_init()
83 mcdi->state = MCDI_STATE_QUIESCENT; in efx_mcdi_init()
84 mcdi->mode = MCDI_MODE_POLL; in efx_mcdi_init()
85 spin_lock_init(&mcdi->async_lock); in efx_mcdi_init()
86 INIT_LIST_HEAD(&mcdi->async_list); in efx_mcdi_init()
87 timer_setup(&mcdi->async_timer, efx_mcdi_timeout_async, 0); in efx_mcdi_init()
90 mcdi->new_epoch = true; in efx_mcdi_init()
102 netif_err(efx, probe, efx->net_dev, in efx_mcdi_init()
108 netif_err(efx, probe, efx->net_dev, in efx_mcdi_init()
111 if (efx->mcdi->fn_flags & in efx_mcdi_init()
113 efx->primary = efx; in efx_mcdi_init()
118 free_page((unsigned long)mcdi->logging_buffer); in efx_mcdi_init()
121 kfree(efx->mcdi); in efx_mcdi_init()
122 efx->mcdi = NULL; in efx_mcdi_init()
129 if (!efx->mcdi) in efx_mcdi_detach()
132 BUG_ON(efx->mcdi->iface.state != MCDI_STATE_QUIESCENT); in efx_mcdi_detach()
140 if (!efx->mcdi) in efx_mcdi_fini()
144 free_page((unsigned long)efx->mcdi->iface.logging_buffer); in efx_mcdi_fini()
147 kfree(efx->mcdi); in efx_mcdi_fini()
155 char *buf = mcdi->logging_buffer; /* page-sized */ in efx_mcdi_send_request()
161 BUG_ON(mcdi->state == MCDI_STATE_QUIESCENT); in efx_mcdi_send_request()
164 spin_lock_bh(&mcdi->iface_lock); in efx_mcdi_send_request()
165 ++mcdi->seqno; in efx_mcdi_send_request()
166 spin_unlock_bh(&mcdi->iface_lock); in efx_mcdi_send_request()
168 seqno = mcdi->seqno & SEQ_MASK; in efx_mcdi_send_request()
170 if (mcdi->mode == MCDI_MODE_EVENTS) in efx_mcdi_send_request()
173 if (efx->type->mcdi_max_ver == 1) { in efx_mcdi_send_request()
182 MCDI_HEADER_NOT_EPOCH, !mcdi->new_epoch); in efx_mcdi_send_request()
194 MCDI_HEADER_NOT_EPOCH, !mcdi->new_epoch); in efx_mcdi_send_request()
202 if (mcdi->logging_enabled && !WARN_ON_ONCE(!buf)) { in efx_mcdi_send_request()
215 bytes += scnprintf(buf + bytes, PAGE_SIZE - bytes, in efx_mcdi_send_request()
220 bytes += scnprintf(buf + bytes, PAGE_SIZE - bytes, in efx_mcdi_send_request()
224 netif_info(efx, hw, efx->net_dev, "MCDI RPC REQ:%s\n", buf); in efx_mcdi_send_request()
228 efx->type->mcdi_request(efx, hdr, hdr_len, inbuf, inlen); in efx_mcdi_send_request()
230 mcdi->new_epoch = false; in efx_mcdi_send_request()
240 return -name; in efx_mcdi_errno()
255 return -EOPNOTSUPP; in efx_mcdi_errno()
257 return -ENOBUFS; in efx_mcdi_errno()
259 return -EADDRINUSE; in efx_mcdi_errno()
261 return -EPROTO; in efx_mcdi_errno()
270 char *buf = mcdi->logging_buffer; /* page-sized */ in efx_mcdi_read_response_header()
274 efx->type->mcdi_read_response(efx, &hdr, 0, 4); in efx_mcdi_read_response_header()
280 mcdi->resp_hdr_len = 4; in efx_mcdi_read_response_header()
281 mcdi->resp_data_len = EFX_DWORD_FIELD(hdr, MCDI_HEADER_DATALEN); in efx_mcdi_read_response_header()
283 efx->type->mcdi_read_response(efx, &hdr, 4, 4); in efx_mcdi_read_response_header()
284 mcdi->resp_hdr_len = 8; in efx_mcdi_read_response_header()
285 mcdi->resp_data_len = in efx_mcdi_read_response_header()
290 if (mcdi->logging_enabled && !WARN_ON_ONCE(!buf)) { in efx_mcdi_read_response_header()
295 WARN_ON_ONCE(mcdi->resp_hdr_len % 4); in efx_mcdi_read_response_header()
296 hdr_len = mcdi->resp_hdr_len / 4; in efx_mcdi_read_response_header()
300 data_len = DIV_ROUND_UP(mcdi->resp_data_len, 4); in efx_mcdi_read_response_header()
306 efx->type->mcdi_read_response(efx, &hdr, (i * 4), 4); in efx_mcdi_read_response_header()
307 bytes += scnprintf(buf + bytes, PAGE_SIZE - bytes, in efx_mcdi_read_response_header()
312 efx->type->mcdi_read_response(efx, &hdr, in efx_mcdi_read_response_header()
313 mcdi->resp_hdr_len + (i * 4), 4); in efx_mcdi_read_response_header()
314 bytes += scnprintf(buf + bytes, PAGE_SIZE - bytes, in efx_mcdi_read_response_header()
318 netif_info(efx, hw, efx->net_dev, "MCDI RPC RESP:%s\n", buf); in efx_mcdi_read_response_header()
322 mcdi->resprc_raw = 0; in efx_mcdi_read_response_header()
323 if (error && mcdi->resp_data_len == 0) { in efx_mcdi_read_response_header()
324 netif_err(efx, hw, efx->net_dev, "MC rebooted\n"); in efx_mcdi_read_response_header()
325 mcdi->resprc = -EIO; in efx_mcdi_read_response_header()
326 } else if ((respseq ^ mcdi->seqno) & SEQ_MASK) { in efx_mcdi_read_response_header()
327 netif_err(efx, hw, efx->net_dev, in efx_mcdi_read_response_header()
329 respseq, mcdi->seqno); in efx_mcdi_read_response_header()
330 mcdi->resprc = -EIO; in efx_mcdi_read_response_header()
332 efx->type->mcdi_read_response(efx, &hdr, mcdi->resp_hdr_len, 4); in efx_mcdi_read_response_header()
333 mcdi->resprc_raw = EFX_DWORD_FIELD(hdr, EFX_DWORD_0); in efx_mcdi_read_response_header()
334 mcdi->resprc = efx_mcdi_errno(mcdi->resprc_raw); in efx_mcdi_read_response_header()
336 mcdi->resprc = 0; in efx_mcdi_read_response_header()
345 if (!efx->type->mcdi_poll_response(efx)) in efx_mcdi_poll_once()
348 spin_lock_bh(&mcdi->iface_lock); in efx_mcdi_poll_once()
350 spin_unlock_bh(&mcdi->iface_lock); in efx_mcdi_poll_once()
362 /* Check for a reboot atomically with respect to efx_mcdi_copyout() */ in efx_mcdi_poll()
365 spin_lock_bh(&mcdi->iface_lock); in efx_mcdi_poll()
366 mcdi->resprc = rc; in efx_mcdi_poll()
367 mcdi->resp_hdr_len = 0; in efx_mcdi_poll()
368 mcdi->resp_data_len = 0; in efx_mcdi_poll()
369 spin_unlock_bh(&mcdi->iface_lock); in efx_mcdi_poll()
382 --spins; in efx_mcdi_poll()
394 return -ETIMEDOUT; in efx_mcdi_poll()
401 /* Test and clear MC-rebooted flag for this port/function; reset
406 if (!efx->mcdi) in efx_mcdi_poll_reboot()
409 return efx->type->mcdi_poll_reboot(efx); in efx_mcdi_poll_reboot()
414 return cmpxchg(&mcdi->state, in efx_mcdi_acquire_async()
424 wait_event(mcdi->wq, in efx_mcdi_acquire_sync()
425 cmpxchg(&mcdi->state, in efx_mcdi_acquire_sync()
434 if (wait_event_timeout(mcdi->wq, mcdi->state == MCDI_STATE_COMPLETED, in efx_mcdi_await_completion()
436 return -ETIMEDOUT; in efx_mcdi_await_completion()
446 if (mcdi->mode == MCDI_MODE_POLL) in efx_mcdi_await_completion()
457 if (cmpxchg(&mcdi->state, in efx_mcdi_complete_sync()
460 wake_up(&mcdi->wq); in efx_mcdi_complete_sync()
469 if (mcdi->mode == MCDI_MODE_EVENTS) { in efx_mcdi_release()
471 struct efx_nic *efx = mcdi->efx; in efx_mcdi_release()
474 spin_lock_bh(&mcdi->async_lock); in efx_mcdi_release()
476 &mcdi->async_list, struct efx_mcdi_async_param, list); in efx_mcdi_release()
478 mcdi->state = MCDI_STATE_RUNNING_ASYNC; in efx_mcdi_release()
479 efx_mcdi_send_request(efx, async->cmd, in efx_mcdi_release()
481 async->inlen); in efx_mcdi_release()
482 mod_timer(&mcdi->async_timer, in efx_mcdi_release()
485 spin_unlock_bh(&mcdi->async_lock); in efx_mcdi_release()
491 mcdi->state = MCDI_STATE_QUIESCENT; in efx_mcdi_release()
492 wake_up(&mcdi->wq); in efx_mcdi_release()
497 * Return whether this was done. Must be called in bh-disabled
502 struct efx_nic *efx = mcdi->efx; in efx_mcdi_complete_async()
509 if (cmpxchg(&mcdi->state, in efx_mcdi_complete_async()
514 spin_lock(&mcdi->iface_lock); in efx_mcdi_complete_async()
519 ++mcdi->seqno; in efx_mcdi_complete_async()
520 ++mcdi->credits; in efx_mcdi_complete_async()
521 rc = -ETIMEDOUT; in efx_mcdi_complete_async()
525 rc = mcdi->resprc; in efx_mcdi_complete_async()
526 hdr_len = mcdi->resp_hdr_len; in efx_mcdi_complete_async()
527 data_len = mcdi->resp_data_len; in efx_mcdi_complete_async()
529 spin_unlock(&mcdi->iface_lock); in efx_mcdi_complete_async()
536 del_timer_sync(&mcdi->async_timer); in efx_mcdi_complete_async()
538 spin_lock(&mcdi->async_lock); in efx_mcdi_complete_async()
539 async = list_first_entry(&mcdi->async_list, in efx_mcdi_complete_async()
541 list_del(&async->list); in efx_mcdi_complete_async()
542 spin_unlock(&mcdi->async_lock); in efx_mcdi_complete_async()
545 efx->type->mcdi_read_response(efx, outbuf, hdr_len, in efx_mcdi_complete_async()
546 min(async->outlen, data_len)); in efx_mcdi_complete_async()
547 if (!timeout && rc && !async->quiet) { in efx_mcdi_complete_async()
549 efx->type->mcdi_read_response(efx, errbuf, hdr_len, in efx_mcdi_complete_async()
551 efx_mcdi_display_error(efx, async->cmd, async->inlen, errbuf, in efx_mcdi_complete_async()
555 if (async->complete) in efx_mcdi_complete_async()
556 async->complete(efx, async->cookie, rc, outbuf, in efx_mcdi_complete_async()
557 min(async->outlen, data_len)); in efx_mcdi_complete_async()
571 spin_lock(&mcdi->iface_lock); in efx_mcdi_ev_cpl()
573 if ((seqno ^ mcdi->seqno) & SEQ_MASK) { in efx_mcdi_ev_cpl()
574 if (mcdi->credits) in efx_mcdi_ev_cpl()
576 --mcdi->credits; in efx_mcdi_ev_cpl()
578 netif_err(efx, hw, efx->net_dev, in efx_mcdi_ev_cpl()
580 "seq 0x%x\n", seqno, mcdi->seqno); in efx_mcdi_ev_cpl()
582 if (efx->type->mcdi_max_ver >= 2) { in efx_mcdi_ev_cpl()
586 mcdi->resprc = efx_mcdi_errno(mcdi_err); in efx_mcdi_ev_cpl()
587 mcdi->resp_hdr_len = 4; in efx_mcdi_ev_cpl()
588 mcdi->resp_data_len = datalen; in efx_mcdi_ev_cpl()
594 spin_unlock(&mcdi->iface_lock); in efx_mcdi_ev_cpl()
619 if (efx->type->mcdi_max_ver < 0 || in efx_mcdi_check_supported()
620 (efx->type->mcdi_max_ver < 2 && in efx_mcdi_check_supported()
622 return -EINVAL; in efx_mcdi_check_supported()
625 (efx->type->mcdi_max_ver < 2 && in efx_mcdi_check_supported()
627 return -EMSGSIZE; in efx_mcdi_check_supported()
642 efx->type->mcdi_read_response(efx, testbuf, hdr_len, buflen); in efx_mcdi_get_proxy_handle()
661 if (mcdi->mode == MCDI_MODE_POLL) in _efx_mcdi_rpc_finish()
667 netif_err(efx, hw, efx->net_dev, in _efx_mcdi_rpc_finish()
669 cmd, (int)inlen, mcdi->mode); in _efx_mcdi_rpc_finish()
671 if (mcdi->mode == MCDI_MODE_EVENTS && efx_mcdi_poll_once(efx)) { in _efx_mcdi_rpc_finish()
672 netif_err(efx, hw, efx->net_dev, in _efx_mcdi_rpc_finish()
683 spin_lock_bh(&mcdi->iface_lock); in _efx_mcdi_rpc_finish()
684 ++mcdi->seqno; in _efx_mcdi_rpc_finish()
685 ++mcdi->credits; in _efx_mcdi_rpc_finish()
686 spin_unlock_bh(&mcdi->iface_lock); in _efx_mcdi_rpc_finish()
702 spin_lock_bh(&mcdi->iface_lock); in _efx_mcdi_rpc_finish()
703 rc = mcdi->resprc; in _efx_mcdi_rpc_finish()
705 *raw_rc = mcdi->resprc_raw; in _efx_mcdi_rpc_finish()
706 hdr_len = mcdi->resp_hdr_len; in _efx_mcdi_rpc_finish()
707 data_len = mcdi->resp_data_len; in _efx_mcdi_rpc_finish()
709 spin_unlock_bh(&mcdi->iface_lock); in _efx_mcdi_rpc_finish()
713 efx->type->mcdi_read_response(efx, outbuf, hdr_len, in _efx_mcdi_rpc_finish()
718 efx->type->mcdi_read_response(efx, errbuf, hdr_len, err_len); in _efx_mcdi_rpc_finish()
720 if (cmd == MC_CMD_REBOOT && rc == -EIO) { in _efx_mcdi_rpc_finish()
722 } else if (rc == -EIO || rc == -EINTR) { in _efx_mcdi_rpc_finish()
723 netif_err(efx, hw, efx->net_dev, "MC reboot detected\n"); in _efx_mcdi_rpc_finish()
724 netif_dbg(efx, hw, efx->net_dev, "MC rebooted during command %d rc %d\n", in _efx_mcdi_rpc_finish()
725 cmd, -rc); in _efx_mcdi_rpc_finish()
726 if (efx->type->mcdi_reboot_detected) in _efx_mcdi_rpc_finish()
727 efx->type->mcdi_reboot_detected(efx); in _efx_mcdi_rpc_finish()
729 } else if (proxy_handle && (rc == -EPROTO) && in _efx_mcdi_rpc_finish()
732 mcdi->proxy_rx_status = 0; in _efx_mcdi_rpc_finish()
733 mcdi->proxy_rx_handle = 0; in _efx_mcdi_rpc_finish()
734 mcdi->state = MCDI_STATE_PROXY_WAIT; in _efx_mcdi_rpc_finish()
740 if (rc == -EIO || rc == -EINTR) { in _efx_mcdi_rpc_finish()
743 mcdi->new_epoch = true; in _efx_mcdi_rpc_finish()
754 if (mcdi->state == MCDI_STATE_PROXY_WAIT) { in efx_mcdi_proxy_abort()
756 mcdi->proxy_rx_status = -EINTR; in efx_mcdi_proxy_abort()
757 wake_up(&mcdi->proxy_rx_wq); in efx_mcdi_proxy_abort()
766 WARN_ON(mcdi->state != MCDI_STATE_PROXY_WAIT); in efx_mcdi_ev_proxy_response()
768 mcdi->proxy_rx_status = efx_mcdi_errno(status); in efx_mcdi_ev_proxy_response()
773 mcdi->proxy_rx_handle = handle; in efx_mcdi_ev_proxy_response()
774 wake_up(&mcdi->proxy_rx_wq); in efx_mcdi_ev_proxy_response()
783 rc = wait_event_timeout(mcdi->proxy_rx_wq, in efx_mcdi_proxy_wait()
784 mcdi->proxy_rx_handle != 0 || in efx_mcdi_proxy_wait()
785 mcdi->proxy_rx_status == -EINTR, in efx_mcdi_proxy_wait()
789 netif_dbg(efx, hw, efx->net_dev, in efx_mcdi_proxy_wait()
791 return -ETIMEDOUT; in efx_mcdi_proxy_wait()
792 } else if (mcdi->proxy_rx_handle != handle) { in efx_mcdi_proxy_wait()
793 netif_warn(efx, hw, efx->net_dev, in efx_mcdi_proxy_wait()
795 mcdi->proxy_rx_handle, handle); in efx_mcdi_proxy_wait()
796 return -EINVAL; in efx_mcdi_proxy_wait()
799 return mcdi->proxy_rx_status; in efx_mcdi_proxy_wait()
813 return -EINVAL; in _efx_mcdi_rpc()
830 netif_dbg(efx, hw, efx->net_dev, in _efx_mcdi_rpc()
836 netif_dbg(efx, hw, efx->net_dev, in _efx_mcdi_rpc()
840 mcdi->state = MCDI_STATE_RUNNING_SYNC; in _efx_mcdi_rpc()
847 netif_cond_dbg(efx, hw, efx->net_dev, rc == -EPERM, err, in _efx_mcdi_rpc()
851 if (rc == -EINTR || rc == -EIO) in _efx_mcdi_rpc()
871 if ((rc == -EPROTO) && (raw_rc == MC_CMD_ERR_NO_EVB_PORT) && in _efx_mcdi_rpc_evb_retry()
872 efx->type->is_vf) { in _efx_mcdi_rpc_evb_retry()
880 netif_dbg(efx, hw, efx->net_dev, in _efx_mcdi_rpc_evb_retry()
891 } while ((rc == -EPROTO) && in _efx_mcdi_rpc_evb_retry()
896 if (rc && !quiet && !(cmd == MC_CMD_REBOOT && rc == -EIO)) in _efx_mcdi_rpc_evb_retry()
904 * efx_mcdi_rpc - Issue an MCDI command and wait for completion
963 if (efx->mc_bist_for_other_fn) in efx_mcdi_rpc_start()
964 return -ENETDOWN; in efx_mcdi_rpc_start()
966 if (mcdi->mode == MCDI_MODE_FAIL) in efx_mcdi_rpc_start()
967 return -ENETDOWN; in efx_mcdi_rpc_start()
988 if (efx->mc_bist_for_other_fn) in _efx_mcdi_rpc_async()
989 return -ENETDOWN; in _efx_mcdi_rpc_async()
994 return -ENOMEM; in _efx_mcdi_rpc_async()
996 async->cmd = cmd; in _efx_mcdi_rpc_async()
997 async->inlen = inlen; in _efx_mcdi_rpc_async()
998 async->outlen = outlen; in _efx_mcdi_rpc_async()
999 async->quiet = quiet; in _efx_mcdi_rpc_async()
1000 async->complete = complete; in _efx_mcdi_rpc_async()
1001 async->cookie = cookie; in _efx_mcdi_rpc_async()
1004 spin_lock_bh(&mcdi->async_lock); in _efx_mcdi_rpc_async()
1006 if (mcdi->mode == MCDI_MODE_EVENTS) { in _efx_mcdi_rpc_async()
1007 list_add_tail(&async->list, &mcdi->async_list); in _efx_mcdi_rpc_async()
1012 if (mcdi->async_list.next == &async->list && in _efx_mcdi_rpc_async()
1015 mod_timer(&mcdi->async_timer, in _efx_mcdi_rpc_async()
1020 rc = -ENETDOWN; in _efx_mcdi_rpc_async()
1023 spin_unlock_bh(&mcdi->async_lock); in _efx_mcdi_rpc_async()
1029 * efx_mcdi_rpc_async - Schedule an MCDI command to run asynchronously
1046 * (c) the request times-out (in timer context)
1092 netif_cond_dbg(efx, hw, efx->net_dev, rc == -EPERM, err, in efx_mcdi_display_error()
1105 if (!efx->mcdi) in efx_mcdi_mode_poll()
1110 * If in fail-fast state, don't switch to polled completion. in efx_mcdi_mode_poll()
1113 if (mcdi->mode == MCDI_MODE_POLL || mcdi->mode == MCDI_MODE_FAIL) in efx_mcdi_mode_poll()
1124 mcdi->mode = MCDI_MODE_POLL; in efx_mcdi_mode_poll()
1137 if (!efx->mcdi) in efx_mcdi_flush_async()
1143 BUG_ON(mcdi->mode == MCDI_MODE_EVENTS); in efx_mcdi_flush_async()
1145 del_timer_sync(&mcdi->async_timer); in efx_mcdi_flush_async()
1151 if (mcdi->state == MCDI_STATE_RUNNING_ASYNC) { in efx_mcdi_flush_async()
1153 mcdi->state = MCDI_STATE_QUIESCENT; in efx_mcdi_flush_async()
1161 list_for_each_entry_safe(async, next, &mcdi->async_list, list) { in efx_mcdi_flush_async()
1162 if (async->complete) in efx_mcdi_flush_async()
1163 async->complete(efx, async->cookie, -ENETDOWN, NULL, 0); in efx_mcdi_flush_async()
1164 list_del(&async->list); in efx_mcdi_flush_async()
1173 if (!efx->mcdi) in efx_mcdi_mode_event()
1178 * If in fail-fast state, don't switch to event completion. FLR in efx_mcdi_mode_event()
1181 if (mcdi->mode == MCDI_MODE_EVENTS || mcdi->mode == MCDI_MODE_FAIL) in efx_mcdi_mode_event()
1192 mcdi->mode = MCDI_MODE_EVENTS; in efx_mcdi_mode_event()
1201 * either by a BADASSERT or REBOOT event. If the mcdi interface is in efx_mcdi_ev_death()
1202 * in polled mode, then do nothing because the MC reboot handler will in efx_mcdi_ev_death()
1213 * we might receive a REBOOT event *before* the request has in efx_mcdi_ev_death()
1216 * event mode, this condition is just an edge-case of in efx_mcdi_ev_death()
1217 * receiving a REBOOT event after posting the MCDI in efx_mcdi_ev_death()
1218 * request. Did the mc reboot before or after the copyout? The in efx_mcdi_ev_death()
1224 spin_lock(&mcdi->iface_lock); in efx_mcdi_ev_death()
1228 if (mcdi->mode == MCDI_MODE_EVENTS) { in efx_mcdi_ev_death()
1229 mcdi->resprc = rc; in efx_mcdi_ev_death()
1230 mcdi->resp_hdr_len = 0; in efx_mcdi_ev_death()
1231 mcdi->resp_data_len = 0; in efx_mcdi_ev_death()
1232 ++mcdi->credits; in efx_mcdi_ev_death()
1246 * reboot detection in efx_mcdi_poll_reboot() being triggered. in efx_mcdi_ev_death()
1248 * efx_mcdi_poll_reboot(), the MC reboot wasn't noticed but the in efx_mcdi_ev_death()
1251 if (!rc && efx->type->mcdi_reboot_detected) in efx_mcdi_ev_death()
1252 efx->type->mcdi_reboot_detected(efx); in efx_mcdi_ev_death()
1254 mcdi->new_epoch = true; in efx_mcdi_ev_death()
1260 spin_unlock(&mcdi->iface_lock); in efx_mcdi_ev_death()
1264 * new MCDI, cancel any outstanding MCDI and and schedule a BIST-type reset
1272 spin_lock(&mcdi->iface_lock); in efx_mcdi_ev_bist()
1273 efx->mc_bist_for_other_fn = true; in efx_mcdi_ev_bist()
1277 if (mcdi->mode == MCDI_MODE_EVENTS) { in efx_mcdi_ev_bist()
1278 mcdi->resprc = -EIO; in efx_mcdi_ev_bist()
1279 mcdi->resp_hdr_len = 0; in efx_mcdi_ev_bist()
1280 mcdi->resp_data_len = 0; in efx_mcdi_ev_bist()
1281 ++mcdi->credits; in efx_mcdi_ev_bist()
1284 mcdi->new_epoch = true; in efx_mcdi_ev_bist()
1286 spin_unlock(&mcdi->iface_lock); in efx_mcdi_ev_bist()
1289 /* MCDI timeouts seen, so make all MCDI calls fail-fast and issue an FLR to try
1296 if (xchg(&mcdi->mode, MCDI_MODE_FAIL) == MCDI_MODE_FAIL) in efx_mcdi_abandon()
1298 netif_dbg(efx, hw, efx->net_dev, "MCDI is timing out; trying to recover\n"); in efx_mcdi_abandon()
1304 if (atomic_dec_and_test(&efx->active_queues)) in efx_handle_drain_event()
1305 wake_up(&efx->flush_wq); in efx_handle_drain_event()
1307 WARN_ON(atomic_read(&efx->active_queues) < 0); in efx_handle_drain_event()
1314 struct efx_nic *efx = channel->efx; in efx_mcdi_process_event()
1320 netif_err(efx, hw, efx->net_dev, in efx_mcdi_process_event()
1322 efx_mcdi_ev_death(efx, -EINTR); in efx_mcdi_process_event()
1326 netif_info(efx, wol, efx->net_dev, "MCDI PM event.\n"); in efx_mcdi_process_event()
1343 netif_dbg(efx, hw, efx->net_dev, in efx_mcdi_process_event()
1348 netif_info(efx, hw, efx->net_dev, "MC Reboot\n"); in efx_mcdi_process_event()
1349 efx_mcdi_ev_death(efx, -EIO); in efx_mcdi_process_event()
1352 netif_info(efx, hw, efx->net_dev, "MC entered BIST mode\n"); in efx_mcdi_process_event()
1359 if (efx->type->sriov_flr) in efx_mcdi_process_event()
1360 efx->type->sriov_flr(efx, in efx_mcdi_process_event()
1386 netif_err(efx, hw, efx->net_dev, in efx_mcdi_process_event()
1398 netif_err(efx, hw, efx->net_dev, in efx_mcdi_process_event()
1416 size_t offset; in efx_mcdi_print_fwver() local
1425 rc = -EIO; in efx_mcdi_print_fwver()
1430 offset = scnprintf(buf, len, "%u.%u.%u.%u", in efx_mcdi_print_fwver()
1436 if (efx->type->print_additional_fwver) in efx_mcdi_print_fwver()
1437 offset += efx->type->print_additional_fwver(efx, buf + offset, in efx_mcdi_print_fwver()
1438 len - offset); in efx_mcdi_print_fwver()
1444 if (WARN_ON(offset >= len)) in efx_mcdi_print_fwver()
1450 netif_err(efx, probe, efx->net_dev, "%s: failed rc=%d\n", __func__, rc); in efx_mcdi_print_fwver()
1473 if (rc == -EPERM) { in efx_mcdi_drv_attach()
1474 netif_dbg(efx, probe, efx->net_dev, in efx_mcdi_drv_attach()
1475 "efx_mcdi_drv_attach with fw-variant setting failed EPERM, trying without it\n"); in efx_mcdi_drv_attach()
1488 rc = -EIO; in efx_mcdi_drv_attach()
1494 efx->mcdi->fn_flags = in efx_mcdi_drv_attach()
1499 efx->mcdi->fn_flags = in efx_mcdi_drv_attach()
1517 netif_err(efx, probe, efx->net_dev, "%s: failed rc=%d\n", __func__, rc); in efx_mcdi_drv_attach()
1540 rc = -EIO; in efx_mcdi_get_board_cfg()
1571 netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d len=%d\n", in efx_mcdi_get_board_cfg()
1611 rc = -EIO; in efx_mcdi_nvram_types()
1619 netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", in efx_mcdi_nvram_types()
1634 return -ENOMEM; in efx_new_mcdi_nvram_types()
1669 rc = -EIO; in efx_mcdi_nvram_info()
1680 netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc); in efx_mcdi_nvram_info()
1702 return -EIO; in efx_mcdi_nvram_test()
1715 return -ENOMEM; in efx_new_mcdi_nvram_test_all()
1722 rc = -EAGAIN; in efx_new_mcdi_nvram_test_all()
1763 netif_err(efx, hw, efx->net_dev, "%s: failed type=%u\n", in efx_mcdi_nvram_test_all()
1766 netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc); in efx_mcdi_nvram_test_all()
1783 /* Attempt to read any stored assertion state before we reboot in efx_mcdi_read_assertion()
1785 * because a boot-time assertion might cause this command to fail in efx_mcdi_read_assertion()
1794 if (rc == -EPERM) in efx_mcdi_read_assertion()
1796 } while ((rc == -EINTR || rc == -EIO) && retry-- > 0); in efx_mcdi_read_assertion()
1805 return -EIO; in efx_mcdi_read_assertion()
1813 ? "system-level assertion" in efx_mcdi_read_assertion()
1815 ? "thread-level assertion" in efx_mcdi_read_assertion()
1819 netif_err(efx, hw, efx->net_dev, in efx_mcdi_read_assertion()
1828 netif_err(efx, hw, efx->net_dev, "R%.2d (?): 0x%.8x\n", in efx_mcdi_read_assertion()
1843 * reboot. We set a flag that makes the command a no-op if it in efx_mcdi_exit_assertion()
1845 * The MCDI will thus return either 0 or -EIO. in efx_mcdi_exit_assertion()
1852 if (rc == -EIO) in efx_mcdi_exit_assertion()
1909 if (rc == -EIO) in efx_mcdi_reset_mc()
1912 rc = -EIO; in efx_mcdi_reset_mc()
1927 rc = pci_reset_function(efx->pci_dev); in efx_mcdi_reset()
1930 /* Re-enable polled MCDI completion */ in efx_mcdi_reset()
1931 if (efx->mcdi) { in efx_mcdi_reset()
1933 mcdi->mode = MCDI_MODE_POLL; in efx_mcdi_reset()
1938 /* Recover from a failed assertion pre-reset */ in efx_mcdi_reset()
1970 rc = -EIO; in efx_mcdi_wol_filter_set()
1979 *id_out = -1; in efx_mcdi_wol_filter_set()
1980 netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc); in efx_mcdi_wol_filter_set()
2005 rc = -EIO; in efx_mcdi_wol_filter_get_magic()
2014 *id_out = -1; in efx_mcdi_wol_filter_get_magic()
2015 netif_err(efx, hw, efx->net_dev, "%s: failed rc=%d\n", __func__, rc); in efx_mcdi_wol_filter_get_magic()
2046 if (rx_queue->flush_pending) { in efx_mcdi_flush_rxqs()
2047 rx_queue->flush_pending = false; in efx_mcdi_flush_rxqs()
2048 atomic_dec(&efx->rxq_flush_pending); in efx_mcdi_flush_rxqs()
2112 rc = -EIO; in efx_mcdi_get_workarounds()
2128 netif_cond_dbg(efx, hw, efx->net_dev, rc == -ENOSYS, err, in efx_mcdi_get_workarounds()
2156 loff_t offset, u8 *buffer, size_t length) in efx_mcdi_nvram_read() argument
2165 MCDI_SET_DWORD(inbuf, NVRAM_READ_IN_OFFSET, offset); in efx_mcdi_nvram_read()
2180 loff_t offset, const u8 *buffer, size_t length) in efx_mcdi_nvram_write() argument
2187 MCDI_SET_DWORD(inbuf, NVRAM_WRITE_IN_OFFSET, offset); in efx_mcdi_nvram_write()
2200 loff_t offset, size_t length) in efx_mcdi_nvram_erase() argument
2206 MCDI_SET_DWORD(inbuf, NVRAM_ERASE_IN_OFFSET, offset); in efx_mcdi_nvram_erase()
2234 netif_err(efx, drv, efx->net_dev, in efx_mcdi_nvram_update_finish()
2245 rc = -EIO; in efx_mcdi_nvram_update_finish()
2249 rc = -EINVAL; in efx_mcdi_nvram_update_finish()
2254 rc = -EPERM; in efx_mcdi_nvram_update_finish()
2257 netif_err(efx, drv, efx->net_dev, in efx_mcdi_nvram_update_finish()
2259 rc = -EIO; in efx_mcdi_nvram_update_finish()
2270 struct efx_nic *efx = mtd->priv; in efx_mcdi_mtd_read()
2271 loff_t offset = start; in efx_mcdi_mtd_read() local
2272 loff_t end = min_t(loff_t, start + len, mtd->size); in efx_mcdi_mtd_read()
2276 while (offset < end) { in efx_mcdi_mtd_read()
2277 chunk = min_t(size_t, end - offset, EFX_MCDI_NVRAM_LEN_MAX); in efx_mcdi_mtd_read()
2278 rc = efx_mcdi_nvram_read(efx, part->nvram_type, offset, in efx_mcdi_mtd_read()
2282 offset += chunk; in efx_mcdi_mtd_read()
2286 *retlen = offset - start; in efx_mcdi_mtd_read()
2293 struct efx_nic *efx = mtd->priv; in efx_mcdi_mtd_erase()
2294 loff_t offset = start & ~((loff_t)(mtd->erasesize - 1)); in efx_mcdi_mtd_erase() local
2295 loff_t end = min_t(loff_t, start + len, mtd->size); in efx_mcdi_mtd_erase()
2296 size_t chunk = part->common.mtd.erasesize; in efx_mcdi_mtd_erase()
2299 if (!part->updating) { in efx_mcdi_mtd_erase()
2300 rc = efx_mcdi_nvram_update_start(efx, part->nvram_type); in efx_mcdi_mtd_erase()
2303 part->updating = true; in efx_mcdi_mtd_erase()
2309 while (offset < end) { in efx_mcdi_mtd_erase()
2310 rc = efx_mcdi_nvram_erase(efx, part->nvram_type, offset, in efx_mcdi_mtd_erase()
2314 offset += chunk; in efx_mcdi_mtd_erase()
2324 struct efx_nic *efx = mtd->priv; in efx_mcdi_mtd_write()
2325 loff_t offset = start; in efx_mcdi_mtd_write() local
2326 loff_t end = min_t(loff_t, start + len, mtd->size); in efx_mcdi_mtd_write()
2330 if (!part->updating) { in efx_mcdi_mtd_write()
2331 rc = efx_mcdi_nvram_update_start(efx, part->nvram_type); in efx_mcdi_mtd_write()
2334 part->updating = true; in efx_mcdi_mtd_write()
2337 while (offset < end) { in efx_mcdi_mtd_write()
2338 chunk = min_t(size_t, end - offset, EFX_MCDI_NVRAM_LEN_MAX); in efx_mcdi_mtd_write()
2339 rc = efx_mcdi_nvram_write(efx, part->nvram_type, offset, in efx_mcdi_mtd_write()
2343 offset += chunk; in efx_mcdi_mtd_write()
2347 *retlen = offset - start; in efx_mcdi_mtd_write()
2354 struct efx_nic *efx = mtd->priv; in efx_mcdi_mtd_sync()
2357 if (part->updating) { in efx_mcdi_mtd_sync()
2358 part->updating = false; in efx_mcdi_mtd_sync()
2359 rc = efx_mcdi_nvram_update_finish(efx, part->nvram_type); in efx_mcdi_mtd_sync()
2369 struct efx_nic *efx = part->mtd.priv; in efx_mcdi_mtd_rename()
2371 snprintf(part->name, sizeof(part->name), "%s %s:%02x", in efx_mcdi_mtd_rename()
2372 efx->name, part->type_name, mcdi_part->fw_subtype); in efx_mcdi_mtd_rename()