diff options
Diffstat (limited to 'drivers/net/sfc/efx.c')
-rw-r--r-- | drivers/net/sfc/efx.c | 809 |
1 files changed, 474 insertions, 335 deletions
diff --git a/drivers/net/sfc/efx.c b/drivers/net/sfc/efx.c index cc4b2f99989d..649a264d6a81 100644 --- a/drivers/net/sfc/efx.c +++ b/drivers/net/sfc/efx.c | |||
@@ -1,7 +1,7 @@ | |||
1 | /**************************************************************************** | 1 | /**************************************************************************** |
2 | * Driver for Solarflare Solarstorm network controllers and boards | 2 | * Driver for Solarflare Solarstorm network controllers and boards |
3 | * Copyright 2005-2006 Fen Systems Ltd. | 3 | * Copyright 2005-2006 Fen Systems Ltd. |
4 | * Copyright 2005-2008 Solarflare Communications Inc. | 4 | * Copyright 2005-2009 Solarflare Communications Inc. |
5 | * | 5 | * |
6 | * This program is free software; you can redistribute it and/or modify it | 6 | * This program is free software; you can redistribute it and/or modify it |
7 | * under the terms of the GNU General Public License version 2 as published | 7 | * under the terms of the GNU General Public License version 2 as published |
@@ -20,13 +20,75 @@ | |||
20 | #include <linux/crc32.h> | 20 | #include <linux/crc32.h> |
21 | #include <linux/ethtool.h> | 21 | #include <linux/ethtool.h> |
22 | #include <linux/topology.h> | 22 | #include <linux/topology.h> |
23 | #include <linux/gfp.h> | ||
23 | #include "net_driver.h" | 24 | #include "net_driver.h" |
24 | #include "ethtool.h" | ||
25 | #include "tx.h" | ||
26 | #include "rx.h" | ||
27 | #include "efx.h" | 25 | #include "efx.h" |
28 | #include "mdio_10g.h" | 26 | #include "mdio_10g.h" |
29 | #include "falcon.h" | 27 | #include "nic.h" |
28 | |||
29 | #include "mcdi.h" | ||
30 | |||
31 | /************************************************************************** | ||
32 | * | ||
33 | * Type name strings | ||
34 | * | ||
35 | ************************************************************************** | ||
36 | */ | ||
37 | |||
38 | /* Loopback mode names (see LOOPBACK_MODE()) */ | ||
39 | const unsigned int efx_loopback_mode_max = LOOPBACK_MAX; | ||
40 | const char *efx_loopback_mode_names[] = { | ||
41 | [LOOPBACK_NONE] = "NONE", | ||
42 | [LOOPBACK_DATA] = "DATAPATH", | ||
43 | [LOOPBACK_GMAC] = "GMAC", | ||
44 | [LOOPBACK_XGMII] = "XGMII", | ||
45 | [LOOPBACK_XGXS] = "XGXS", | ||
46 | [LOOPBACK_XAUI] = "XAUI", | ||
47 | [LOOPBACK_GMII] = "GMII", | ||
48 | [LOOPBACK_SGMII] = "SGMII", | ||
49 | [LOOPBACK_XGBR] = "XGBR", | ||
50 | [LOOPBACK_XFI] = "XFI", | ||
51 | [LOOPBACK_XAUI_FAR] = "XAUI_FAR", | ||
52 | [LOOPBACK_GMII_FAR] = "GMII_FAR", | ||
53 | [LOOPBACK_SGMII_FAR] = "SGMII_FAR", | ||
54 | [LOOPBACK_XFI_FAR] = "XFI_FAR", | ||
55 | [LOOPBACK_GPHY] = "GPHY", | ||
56 | [LOOPBACK_PHYXS] = "PHYXS", | ||
57 | [LOOPBACK_PCS] = "PCS", | ||
58 | [LOOPBACK_PMAPMD] = "PMA/PMD", | ||
59 | [LOOPBACK_XPORT] = "XPORT", | ||
60 | [LOOPBACK_XGMII_WS] = "XGMII_WS", | ||
61 | [LOOPBACK_XAUI_WS] = "XAUI_WS", | ||
62 | [LOOPBACK_XAUI_WS_FAR] = "XAUI_WS_FAR", | ||
63 | [LOOPBACK_XAUI_WS_NEAR] = "XAUI_WS_NEAR", | ||
64 | [LOOPBACK_GMII_WS] = "GMII_WS", | ||
65 | [LOOPBACK_XFI_WS] = "XFI_WS", | ||
66 | [LOOPBACK_XFI_WS_FAR] = "XFI_WS_FAR", | ||
67 | [LOOPBACK_PHYXS_WS] = "PHYXS_WS", | ||
68 | }; | ||
69 | |||
70 | /* Interrupt mode names (see INT_MODE())) */ | ||
71 | const unsigned int efx_interrupt_mode_max = EFX_INT_MODE_MAX; | ||
72 | const char *efx_interrupt_mode_names[] = { | ||
73 | [EFX_INT_MODE_MSIX] = "MSI-X", | ||
74 | [EFX_INT_MODE_MSI] = "MSI", | ||
75 | [EFX_INT_MODE_LEGACY] = "legacy", | ||
76 | }; | ||
77 | |||
78 | const unsigned int efx_reset_type_max = RESET_TYPE_MAX; | ||
79 | const char *efx_reset_type_names[] = { | ||
80 | [RESET_TYPE_INVISIBLE] = "INVISIBLE", | ||
81 | [RESET_TYPE_ALL] = "ALL", | ||
82 | [RESET_TYPE_WORLD] = "WORLD", | ||
83 | [RESET_TYPE_DISABLE] = "DISABLE", | ||
84 | [RESET_TYPE_TX_WATCHDOG] = "TX_WATCHDOG", | ||
85 | [RESET_TYPE_INT_ERROR] = "INT_ERROR", | ||
86 | [RESET_TYPE_RX_RECOVERY] = "RX_RECOVERY", | ||
87 | [RESET_TYPE_RX_DESC_FETCH] = "RX_DESC_FETCH", | ||
88 | [RESET_TYPE_TX_DESC_FETCH] = "TX_DESC_FETCH", | ||
89 | [RESET_TYPE_TX_SKIP] = "TX_SKIP", | ||
90 | [RESET_TYPE_MC_FAILURE] = "MC_FAILURE", | ||
91 | }; | ||
30 | 92 | ||
31 | #define EFX_MAX_MTU (9 * 1024) | 93 | #define EFX_MAX_MTU (9 * 1024) |
32 | 94 | ||
@@ -145,7 +207,8 @@ static void efx_fini_channels(struct efx_nic *efx); | |||
145 | 207 | ||
146 | #define EFX_ASSERT_RESET_SERIALISED(efx) \ | 208 | #define EFX_ASSERT_RESET_SERIALISED(efx) \ |
147 | do { \ | 209 | do { \ |
148 | if (efx->state == STATE_RUNNING) \ | 210 | if ((efx->state == STATE_RUNNING) || \ |
211 | (efx->state == STATE_DISABLED)) \ | ||
149 | ASSERT_RTNL(); \ | 212 | ASSERT_RTNL(); \ |
150 | } while (0) | 213 | } while (0) |
151 | 214 | ||
@@ -171,7 +234,7 @@ static int efx_process_channel(struct efx_channel *channel, int rx_quota) | |||
171 | !channel->enabled)) | 234 | !channel->enabled)) |
172 | return 0; | 235 | return 0; |
173 | 236 | ||
174 | rx_packets = falcon_process_eventq(channel, rx_quota); | 237 | rx_packets = efx_nic_process_eventq(channel, rx_quota); |
175 | if (rx_packets == 0) | 238 | if (rx_packets == 0) |
176 | return 0; | 239 | return 0; |
177 | 240 | ||
@@ -203,7 +266,7 @@ static inline void efx_channel_processed(struct efx_channel *channel) | |||
203 | channel->work_pending = false; | 266 | channel->work_pending = false; |
204 | smp_wmb(); | 267 | smp_wmb(); |
205 | 268 | ||
206 | falcon_eventq_read_ack(channel); | 269 | efx_nic_eventq_read_ack(channel); |
207 | } | 270 | } |
208 | 271 | ||
209 | /* NAPI poll handler | 272 | /* NAPI poll handler |
@@ -228,26 +291,20 @@ static int efx_poll(struct napi_struct *napi, int budget) | |||
228 | if (channel->used_flags & EFX_USED_BY_RX && | 291 | if (channel->used_flags & EFX_USED_BY_RX && |
229 | efx->irq_rx_adaptive && | 292 | efx->irq_rx_adaptive && |
230 | unlikely(++channel->irq_count == 1000)) { | 293 | unlikely(++channel->irq_count == 1000)) { |
231 | unsigned old_irq_moderation = channel->irq_moderation; | ||
232 | |||
233 | if (unlikely(channel->irq_mod_score < | 294 | if (unlikely(channel->irq_mod_score < |
234 | irq_adapt_low_thresh)) { | 295 | irq_adapt_low_thresh)) { |
235 | channel->irq_moderation = | 296 | if (channel->irq_moderation > 1) { |
236 | max_t(int, | 297 | channel->irq_moderation -= 1; |
237 | channel->irq_moderation - | 298 | efx->type->push_irq_moderation(channel); |
238 | FALCON_IRQ_MOD_RESOLUTION, | 299 | } |
239 | FALCON_IRQ_MOD_RESOLUTION); | ||
240 | } else if (unlikely(channel->irq_mod_score > | 300 | } else if (unlikely(channel->irq_mod_score > |
241 | irq_adapt_high_thresh)) { | 301 | irq_adapt_high_thresh)) { |
242 | channel->irq_moderation = | 302 | if (channel->irq_moderation < |
243 | min(channel->irq_moderation + | 303 | efx->irq_rx_moderation) { |
244 | FALCON_IRQ_MOD_RESOLUTION, | 304 | channel->irq_moderation += 1; |
245 | efx->irq_rx_moderation); | 305 | efx->type->push_irq_moderation(channel); |
306 | } | ||
246 | } | 307 | } |
247 | |||
248 | if (channel->irq_moderation != old_irq_moderation) | ||
249 | falcon_set_int_moderation(channel); | ||
250 | |||
251 | channel->irq_count = 0; | 308 | channel->irq_count = 0; |
252 | channel->irq_mod_score = 0; | 309 | channel->irq_mod_score = 0; |
253 | } | 310 | } |
@@ -280,7 +337,7 @@ void efx_process_channel_now(struct efx_channel *channel) | |||
280 | BUG_ON(!channel->enabled); | 337 | BUG_ON(!channel->enabled); |
281 | 338 | ||
282 | /* Disable interrupts and wait for ISRs to complete */ | 339 | /* Disable interrupts and wait for ISRs to complete */ |
283 | falcon_disable_interrupts(efx); | 340 | efx_nic_disable_interrupts(efx); |
284 | if (efx->legacy_irq) | 341 | if (efx->legacy_irq) |
285 | synchronize_irq(efx->legacy_irq); | 342 | synchronize_irq(efx->legacy_irq); |
286 | if (channel->irq) | 343 | if (channel->irq) |
@@ -290,14 +347,14 @@ void efx_process_channel_now(struct efx_channel *channel) | |||
290 | napi_disable(&channel->napi_str); | 347 | napi_disable(&channel->napi_str); |
291 | 348 | ||
292 | /* Poll the channel */ | 349 | /* Poll the channel */ |
293 | efx_process_channel(channel, efx->type->evq_size); | 350 | efx_process_channel(channel, EFX_EVQ_SIZE); |
294 | 351 | ||
295 | /* Ack the eventq. This may cause an interrupt to be generated | 352 | /* Ack the eventq. This may cause an interrupt to be generated |
296 | * when they are reenabled */ | 353 | * when they are reenabled */ |
297 | efx_channel_processed(channel); | 354 | efx_channel_processed(channel); |
298 | 355 | ||
299 | napi_enable(&channel->napi_str); | 356 | napi_enable(&channel->napi_str); |
300 | falcon_enable_interrupts(efx); | 357 | efx_nic_enable_interrupts(efx); |
301 | } | 358 | } |
302 | 359 | ||
303 | /* Create event queue | 360 | /* Create event queue |
@@ -309,7 +366,7 @@ static int efx_probe_eventq(struct efx_channel *channel) | |||
309 | { | 366 | { |
310 | EFX_LOG(channel->efx, "chan %d create event queue\n", channel->channel); | 367 | EFX_LOG(channel->efx, "chan %d create event queue\n", channel->channel); |
311 | 368 | ||
312 | return falcon_probe_eventq(channel); | 369 | return efx_nic_probe_eventq(channel); |
313 | } | 370 | } |
314 | 371 | ||
315 | /* Prepare channel's event queue */ | 372 | /* Prepare channel's event queue */ |
@@ -319,21 +376,21 @@ static void efx_init_eventq(struct efx_channel *channel) | |||
319 | 376 | ||
320 | channel->eventq_read_ptr = 0; | 377 | channel->eventq_read_ptr = 0; |
321 | 378 | ||
322 | falcon_init_eventq(channel); | 379 | efx_nic_init_eventq(channel); |
323 | } | 380 | } |
324 | 381 | ||
325 | static void efx_fini_eventq(struct efx_channel *channel) | 382 | static void efx_fini_eventq(struct efx_channel *channel) |
326 | { | 383 | { |
327 | EFX_LOG(channel->efx, "chan %d fini event queue\n", channel->channel); | 384 | EFX_LOG(channel->efx, "chan %d fini event queue\n", channel->channel); |
328 | 385 | ||
329 | falcon_fini_eventq(channel); | 386 | efx_nic_fini_eventq(channel); |
330 | } | 387 | } |
331 | 388 | ||
332 | static void efx_remove_eventq(struct efx_channel *channel) | 389 | static void efx_remove_eventq(struct efx_channel *channel) |
333 | { | 390 | { |
334 | EFX_LOG(channel->efx, "chan %d remove event queue\n", channel->channel); | 391 | EFX_LOG(channel->efx, "chan %d remove event queue\n", channel->channel); |
335 | 392 | ||
336 | falcon_remove_eventq(channel); | 393 | efx_nic_remove_eventq(channel); |
337 | } | 394 | } |
338 | 395 | ||
339 | /************************************************************************** | 396 | /************************************************************************** |
@@ -499,7 +556,7 @@ static void efx_fini_channels(struct efx_nic *efx) | |||
499 | EFX_ASSERT_RESET_SERIALISED(efx); | 556 | EFX_ASSERT_RESET_SERIALISED(efx); |
500 | BUG_ON(efx->port_enabled); | 557 | BUG_ON(efx->port_enabled); |
501 | 558 | ||
502 | rc = falcon_flush_queues(efx); | 559 | rc = efx_nic_flush_queues(efx); |
503 | if (rc) | 560 | if (rc) |
504 | EFX_ERR(efx, "failed to flush queues\n"); | 561 | EFX_ERR(efx, "failed to flush queues\n"); |
505 | else | 562 | else |
@@ -547,8 +604,10 @@ void efx_schedule_slow_fill(struct efx_rx_queue *rx_queue, int delay) | |||
547 | * netif_carrier_on/off) of the link status, and also maintains the | 604 | * netif_carrier_on/off) of the link status, and also maintains the |
548 | * link status's stop on the port's TX queue. | 605 | * link status's stop on the port's TX queue. |
549 | */ | 606 | */ |
550 | static void efx_link_status_changed(struct efx_nic *efx) | 607 | void efx_link_status_changed(struct efx_nic *efx) |
551 | { | 608 | { |
609 | struct efx_link_state *link_state = &efx->link_state; | ||
610 | |||
552 | /* SFC Bug 5356: A net_dev notifier is registered, so we must ensure | 611 | /* SFC Bug 5356: A net_dev notifier is registered, so we must ensure |
553 | * that no events are triggered between unregister_netdev() and the | 612 | * that no events are triggered between unregister_netdev() and the |
554 | * driver unloading. A more general condition is that NETDEV_CHANGE | 613 | * driver unloading. A more general condition is that NETDEV_CHANGE |
@@ -561,19 +620,19 @@ static void efx_link_status_changed(struct efx_nic *efx) | |||
561 | return; | 620 | return; |
562 | } | 621 | } |
563 | 622 | ||
564 | if (efx->link_up != netif_carrier_ok(efx->net_dev)) { | 623 | if (link_state->up != netif_carrier_ok(efx->net_dev)) { |
565 | efx->n_link_state_changes++; | 624 | efx->n_link_state_changes++; |
566 | 625 | ||
567 | if (efx->link_up) | 626 | if (link_state->up) |
568 | netif_carrier_on(efx->net_dev); | 627 | netif_carrier_on(efx->net_dev); |
569 | else | 628 | else |
570 | netif_carrier_off(efx->net_dev); | 629 | netif_carrier_off(efx->net_dev); |
571 | } | 630 | } |
572 | 631 | ||
573 | /* Status message for kernel log */ | 632 | /* Status message for kernel log */ |
574 | if (efx->link_up) { | 633 | if (link_state->up) { |
575 | EFX_INFO(efx, "link up at %uMbps %s-duplex (MTU %d)%s\n", | 634 | EFX_INFO(efx, "link up at %uMbps %s-duplex (MTU %d)%s\n", |
576 | efx->link_speed, efx->link_fd ? "full" : "half", | 635 | link_state->speed, link_state->fd ? "full" : "half", |
577 | efx->net_dev->mtu, | 636 | efx->net_dev->mtu, |
578 | (efx->promiscuous ? " [PROMISC]" : "")); | 637 | (efx->promiscuous ? " [PROMISC]" : "")); |
579 | } else { | 638 | } else { |
@@ -582,16 +641,49 @@ static void efx_link_status_changed(struct efx_nic *efx) | |||
582 | 641 | ||
583 | } | 642 | } |
584 | 643 | ||
644 | void efx_link_set_advertising(struct efx_nic *efx, u32 advertising) | ||
645 | { | ||
646 | efx->link_advertising = advertising; | ||
647 | if (advertising) { | ||
648 | if (advertising & ADVERTISED_Pause) | ||
649 | efx->wanted_fc |= (EFX_FC_TX | EFX_FC_RX); | ||
650 | else | ||
651 | efx->wanted_fc &= ~(EFX_FC_TX | EFX_FC_RX); | ||
652 | if (advertising & ADVERTISED_Asym_Pause) | ||
653 | efx->wanted_fc ^= EFX_FC_TX; | ||
654 | } | ||
655 | } | ||
656 | |||
657 | void efx_link_set_wanted_fc(struct efx_nic *efx, enum efx_fc_type wanted_fc) | ||
658 | { | ||
659 | efx->wanted_fc = wanted_fc; | ||
660 | if (efx->link_advertising) { | ||
661 | if (wanted_fc & EFX_FC_RX) | ||
662 | efx->link_advertising |= (ADVERTISED_Pause | | ||
663 | ADVERTISED_Asym_Pause); | ||
664 | else | ||
665 | efx->link_advertising &= ~(ADVERTISED_Pause | | ||
666 | ADVERTISED_Asym_Pause); | ||
667 | if (wanted_fc & EFX_FC_TX) | ||
668 | efx->link_advertising ^= ADVERTISED_Asym_Pause; | ||
669 | } | ||
670 | } | ||
671 | |||
585 | static void efx_fini_port(struct efx_nic *efx); | 672 | static void efx_fini_port(struct efx_nic *efx); |
586 | 673 | ||
587 | /* This call reinitialises the MAC to pick up new PHY settings. The | 674 | /* Push loopback/power/transmit disable settings to the PHY, and reconfigure |
588 | * caller must hold the mac_lock */ | 675 | * the MAC appropriately. All other PHY configuration changes are pushed |
589 | void __efx_reconfigure_port(struct efx_nic *efx) | 676 | * through phy_op->set_settings(), and pushed asynchronously to the MAC |
677 | * through efx_monitor(). | ||
678 | * | ||
679 | * Callers must hold the mac_lock | ||
680 | */ | ||
681 | int __efx_reconfigure_port(struct efx_nic *efx) | ||
590 | { | 682 | { |
591 | WARN_ON(!mutex_is_locked(&efx->mac_lock)); | 683 | enum efx_phy_mode phy_mode; |
684 | int rc; | ||
592 | 685 | ||
593 | EFX_LOG(efx, "reconfiguring MAC from PHY settings on CPU %d\n", | 686 | WARN_ON(!mutex_is_locked(&efx->mac_lock)); |
594 | raw_smp_processor_id()); | ||
595 | 687 | ||
596 | /* Serialise the promiscuous flag with efx_set_multicast_list. */ | 688 | /* Serialise the promiscuous flag with efx_set_multicast_list. */ |
597 | if (efx_dev_registered(efx)) { | 689 | if (efx_dev_registered(efx)) { |
@@ -599,61 +691,48 @@ void __efx_reconfigure_port(struct efx_nic *efx) | |||
599 | netif_addr_unlock_bh(efx->net_dev); | 691 | netif_addr_unlock_bh(efx->net_dev); |
600 | } | 692 | } |
601 | 693 | ||
602 | falcon_deconfigure_mac_wrapper(efx); | 694 | /* Disable PHY transmit in mac level loopbacks */ |
603 | 695 | phy_mode = efx->phy_mode; | |
604 | /* Reconfigure the PHY, disabling transmit in mac level loopback. */ | ||
605 | if (LOOPBACK_INTERNAL(efx)) | 696 | if (LOOPBACK_INTERNAL(efx)) |
606 | efx->phy_mode |= PHY_MODE_TX_DISABLED; | 697 | efx->phy_mode |= PHY_MODE_TX_DISABLED; |
607 | else | 698 | else |
608 | efx->phy_mode &= ~PHY_MODE_TX_DISABLED; | 699 | efx->phy_mode &= ~PHY_MODE_TX_DISABLED; |
609 | efx->phy_op->reconfigure(efx); | ||
610 | |||
611 | if (falcon_switch_mac(efx)) | ||
612 | goto fail; | ||
613 | 700 | ||
614 | efx->mac_op->reconfigure(efx); | 701 | rc = efx->type->reconfigure_port(efx); |
615 | 702 | ||
616 | /* Inform kernel of loss/gain of carrier */ | 703 | if (rc) |
617 | efx_link_status_changed(efx); | 704 | efx->phy_mode = phy_mode; |
618 | return; | ||
619 | 705 | ||
620 | fail: | 706 | return rc; |
621 | EFX_ERR(efx, "failed to reconfigure MAC\n"); | ||
622 | efx->port_enabled = false; | ||
623 | efx_fini_port(efx); | ||
624 | } | 707 | } |
625 | 708 | ||
626 | /* Reinitialise the MAC to pick up new PHY settings, even if the port is | 709 | /* Reinitialise the MAC to pick up new PHY settings, even if the port is |
627 | * disabled. */ | 710 | * disabled. */ |
628 | void efx_reconfigure_port(struct efx_nic *efx) | 711 | int efx_reconfigure_port(struct efx_nic *efx) |
629 | { | 712 | { |
713 | int rc; | ||
714 | |||
630 | EFX_ASSERT_RESET_SERIALISED(efx); | 715 | EFX_ASSERT_RESET_SERIALISED(efx); |
631 | 716 | ||
632 | mutex_lock(&efx->mac_lock); | 717 | mutex_lock(&efx->mac_lock); |
633 | __efx_reconfigure_port(efx); | 718 | rc = __efx_reconfigure_port(efx); |
634 | mutex_unlock(&efx->mac_lock); | 719 | mutex_unlock(&efx->mac_lock); |
635 | } | ||
636 | |||
637 | /* Asynchronous efx_reconfigure_port work item. To speed up efx_flush_all() | ||
638 | * we don't efx_reconfigure_port() if the port is disabled. Care is taken | ||
639 | * in efx_stop_all() and efx_start_port() to prevent PHY events being lost */ | ||
640 | static void efx_phy_work(struct work_struct *data) | ||
641 | { | ||
642 | struct efx_nic *efx = container_of(data, struct efx_nic, phy_work); | ||
643 | 720 | ||
644 | mutex_lock(&efx->mac_lock); | 721 | return rc; |
645 | if (efx->port_enabled) | ||
646 | __efx_reconfigure_port(efx); | ||
647 | mutex_unlock(&efx->mac_lock); | ||
648 | } | 722 | } |
649 | 723 | ||
724 | /* Asynchronous work item for changing MAC promiscuity and multicast | ||
725 | * hash. Avoid a drain/rx_ingress enable by reconfiguring the current | ||
726 | * MAC directly. */ | ||
650 | static void efx_mac_work(struct work_struct *data) | 727 | static void efx_mac_work(struct work_struct *data) |
651 | { | 728 | { |
652 | struct efx_nic *efx = container_of(data, struct efx_nic, mac_work); | 729 | struct efx_nic *efx = container_of(data, struct efx_nic, mac_work); |
653 | 730 | ||
654 | mutex_lock(&efx->mac_lock); | 731 | mutex_lock(&efx->mac_lock); |
655 | if (efx->port_enabled) | 732 | if (efx->port_enabled) { |
656 | efx->mac_op->irq(efx); | 733 | efx->type->push_multicast_hash(efx); |
734 | efx->mac_op->reconfigure(efx); | ||
735 | } | ||
657 | mutex_unlock(&efx->mac_lock); | 736 | mutex_unlock(&efx->mac_lock); |
658 | } | 737 | } |
659 | 738 | ||
@@ -663,14 +742,14 @@ static int efx_probe_port(struct efx_nic *efx) | |||
663 | 742 | ||
664 | EFX_LOG(efx, "create port\n"); | 743 | EFX_LOG(efx, "create port\n"); |
665 | 744 | ||
666 | /* Connect up MAC/PHY operations table and read MAC address */ | ||
667 | rc = falcon_probe_port(efx); | ||
668 | if (rc) | ||
669 | goto err; | ||
670 | |||
671 | if (phy_flash_cfg) | 745 | if (phy_flash_cfg) |
672 | efx->phy_mode = PHY_MODE_SPECIAL; | 746 | efx->phy_mode = PHY_MODE_SPECIAL; |
673 | 747 | ||
748 | /* Connect up MAC/PHY operations table */ | ||
749 | rc = efx->type->probe_port(efx); | ||
750 | if (rc) | ||
751 | goto err; | ||
752 | |||
674 | /* Sanity check MAC address */ | 753 | /* Sanity check MAC address */ |
675 | if (is_valid_ether_addr(efx->mac_address)) { | 754 | if (is_valid_ether_addr(efx->mac_address)) { |
676 | memcpy(efx->net_dev->dev_addr, efx->mac_address, ETH_ALEN); | 755 | memcpy(efx->net_dev->dev_addr, efx->mac_address, ETH_ALEN); |
@@ -699,29 +778,33 @@ static int efx_init_port(struct efx_nic *efx) | |||
699 | 778 | ||
700 | EFX_LOG(efx, "init port\n"); | 779 | EFX_LOG(efx, "init port\n"); |
701 | 780 | ||
702 | rc = efx->phy_op->init(efx); | ||
703 | if (rc) | ||
704 | return rc; | ||
705 | mutex_lock(&efx->mac_lock); | 781 | mutex_lock(&efx->mac_lock); |
706 | efx->phy_op->reconfigure(efx); | 782 | |
707 | rc = falcon_switch_mac(efx); | 783 | rc = efx->phy_op->init(efx); |
708 | mutex_unlock(&efx->mac_lock); | ||
709 | if (rc) | 784 | if (rc) |
710 | goto fail; | 785 | goto fail1; |
711 | efx->mac_op->reconfigure(efx); | ||
712 | 786 | ||
713 | efx->port_initialized = true; | 787 | efx->port_initialized = true; |
714 | efx_stats_enable(efx); | 788 | |
789 | /* Reconfigure the MAC before creating dma queues (required for | ||
790 | * Falcon/A1 where RX_INGR_EN/TX_DRAIN_EN isn't supported) */ | ||
791 | efx->mac_op->reconfigure(efx); | ||
792 | |||
793 | /* Ensure the PHY advertises the correct flow control settings */ | ||
794 | rc = efx->phy_op->reconfigure(efx); | ||
795 | if (rc) | ||
796 | goto fail2; | ||
797 | |||
798 | mutex_unlock(&efx->mac_lock); | ||
715 | return 0; | 799 | return 0; |
716 | 800 | ||
717 | fail: | 801 | fail2: |
718 | efx->phy_op->fini(efx); | 802 | efx->phy_op->fini(efx); |
803 | fail1: | ||
804 | mutex_unlock(&efx->mac_lock); | ||
719 | return rc; | 805 | return rc; |
720 | } | 806 | } |
721 | 807 | ||
722 | /* Allow efx_reconfigure_port() to be scheduled, and close the window | ||
723 | * between efx_stop_port and efx_flush_all whereby a previously scheduled | ||
724 | * efx_phy_work()/efx_mac_work() may have been cancelled */ | ||
725 | static void efx_start_port(struct efx_nic *efx) | 808 | static void efx_start_port(struct efx_nic *efx) |
726 | { | 809 | { |
727 | EFX_LOG(efx, "start port\n"); | 810 | EFX_LOG(efx, "start port\n"); |
@@ -729,15 +812,16 @@ static void efx_start_port(struct efx_nic *efx) | |||
729 | 812 | ||
730 | mutex_lock(&efx->mac_lock); | 813 | mutex_lock(&efx->mac_lock); |
731 | efx->port_enabled = true; | 814 | efx->port_enabled = true; |
732 | __efx_reconfigure_port(efx); | 815 | |
733 | efx->mac_op->irq(efx); | 816 | /* efx_mac_work() might have been scheduled after efx_stop_port(), |
817 | * and then cancelled by efx_flush_all() */ | ||
818 | efx->type->push_multicast_hash(efx); | ||
819 | efx->mac_op->reconfigure(efx); | ||
820 | |||
734 | mutex_unlock(&efx->mac_lock); | 821 | mutex_unlock(&efx->mac_lock); |
735 | } | 822 | } |
736 | 823 | ||
737 | /* Prevent efx_phy_work, efx_mac_work, and efx_monitor() from executing, | 824 | /* Prevent efx_mac_work() and efx_monitor() from working */ |
738 | * and efx_set_multicast_list() from scheduling efx_phy_work. efx_phy_work | ||
739 | * and efx_mac_work may still be scheduled via NAPI processing until | ||
740 | * efx_flush_all() is called */ | ||
741 | static void efx_stop_port(struct efx_nic *efx) | 825 | static void efx_stop_port(struct efx_nic *efx) |
742 | { | 826 | { |
743 | EFX_LOG(efx, "stop port\n"); | 827 | EFX_LOG(efx, "stop port\n"); |
@@ -760,11 +844,10 @@ static void efx_fini_port(struct efx_nic *efx) | |||
760 | if (!efx->port_initialized) | 844 | if (!efx->port_initialized) |
761 | return; | 845 | return; |
762 | 846 | ||
763 | efx_stats_disable(efx); | ||
764 | efx->phy_op->fini(efx); | 847 | efx->phy_op->fini(efx); |
765 | efx->port_initialized = false; | 848 | efx->port_initialized = false; |
766 | 849 | ||
767 | efx->link_up = false; | 850 | efx->link_state.up = false; |
768 | efx_link_status_changed(efx); | 851 | efx_link_status_changed(efx); |
769 | } | 852 | } |
770 | 853 | ||
@@ -772,7 +855,7 @@ static void efx_remove_port(struct efx_nic *efx) | |||
772 | { | 855 | { |
773 | EFX_LOG(efx, "destroying port\n"); | 856 | EFX_LOG(efx, "destroying port\n"); |
774 | 857 | ||
775 | falcon_remove_port(efx); | 858 | efx->type->remove_port(efx); |
776 | } | 859 | } |
777 | 860 | ||
778 | /************************************************************************** | 861 | /************************************************************************** |
@@ -824,9 +907,8 @@ static int efx_init_io(struct efx_nic *efx) | |||
824 | goto fail2; | 907 | goto fail2; |
825 | } | 908 | } |
826 | 909 | ||
827 | efx->membase_phys = pci_resource_start(efx->pci_dev, | 910 | efx->membase_phys = pci_resource_start(efx->pci_dev, EFX_MEM_BAR); |
828 | efx->type->mem_bar); | 911 | rc = pci_request_region(pci_dev, EFX_MEM_BAR, "sfc"); |
829 | rc = pci_request_region(pci_dev, efx->type->mem_bar, "sfc"); | ||
830 | if (rc) { | 912 | if (rc) { |
831 | EFX_ERR(efx, "request for memory BAR failed\n"); | 913 | EFX_ERR(efx, "request for memory BAR failed\n"); |
832 | rc = -EIO; | 914 | rc = -EIO; |
@@ -835,21 +917,20 @@ static int efx_init_io(struct efx_nic *efx) | |||
835 | efx->membase = ioremap_nocache(efx->membase_phys, | 917 | efx->membase = ioremap_nocache(efx->membase_phys, |
836 | efx->type->mem_map_size); | 918 | efx->type->mem_map_size); |
837 | if (!efx->membase) { | 919 | if (!efx->membase) { |
838 | EFX_ERR(efx, "could not map memory BAR %d at %llx+%x\n", | 920 | EFX_ERR(efx, "could not map memory BAR at %llx+%x\n", |
839 | efx->type->mem_bar, | ||
840 | (unsigned long long)efx->membase_phys, | 921 | (unsigned long long)efx->membase_phys, |
841 | efx->type->mem_map_size); | 922 | efx->type->mem_map_size); |
842 | rc = -ENOMEM; | 923 | rc = -ENOMEM; |
843 | goto fail4; | 924 | goto fail4; |
844 | } | 925 | } |
845 | EFX_LOG(efx, "memory BAR %u at %llx+%x (virtual %p)\n", | 926 | EFX_LOG(efx, "memory BAR at %llx+%x (virtual %p)\n", |
846 | efx->type->mem_bar, (unsigned long long)efx->membase_phys, | 927 | (unsigned long long)efx->membase_phys, |
847 | efx->type->mem_map_size, efx->membase); | 928 | efx->type->mem_map_size, efx->membase); |
848 | 929 | ||
849 | return 0; | 930 | return 0; |
850 | 931 | ||
851 | fail4: | 932 | fail4: |
852 | pci_release_region(efx->pci_dev, efx->type->mem_bar); | 933 | pci_release_region(efx->pci_dev, EFX_MEM_BAR); |
853 | fail3: | 934 | fail3: |
854 | efx->membase_phys = 0; | 935 | efx->membase_phys = 0; |
855 | fail2: | 936 | fail2: |
@@ -868,7 +949,7 @@ static void efx_fini_io(struct efx_nic *efx) | |||
868 | } | 949 | } |
869 | 950 | ||
870 | if (efx->membase_phys) { | 951 | if (efx->membase_phys) { |
871 | pci_release_region(efx->pci_dev, efx->type->mem_bar); | 952 | pci_release_region(efx->pci_dev, EFX_MEM_BAR); |
872 | efx->membase_phys = 0; | 953 | efx->membase_phys = 0; |
873 | } | 954 | } |
874 | 955 | ||
@@ -1011,7 +1092,7 @@ static int efx_probe_nic(struct efx_nic *efx) | |||
1011 | EFX_LOG(efx, "creating NIC\n"); | 1092 | EFX_LOG(efx, "creating NIC\n"); |
1012 | 1093 | ||
1013 | /* Carry out hardware-type specific initialisation */ | 1094 | /* Carry out hardware-type specific initialisation */ |
1014 | rc = falcon_probe_nic(efx); | 1095 | rc = efx->type->probe(efx); |
1015 | if (rc) | 1096 | if (rc) |
1016 | return rc; | 1097 | return rc; |
1017 | 1098 | ||
@@ -1032,7 +1113,7 @@ static void efx_remove_nic(struct efx_nic *efx) | |||
1032 | EFX_LOG(efx, "destroying NIC\n"); | 1113 | EFX_LOG(efx, "destroying NIC\n"); |
1033 | 1114 | ||
1034 | efx_remove_interrupts(efx); | 1115 | efx_remove_interrupts(efx); |
1035 | falcon_remove_nic(efx); | 1116 | efx->type->remove(efx); |
1036 | } | 1117 | } |
1037 | 1118 | ||
1038 | /************************************************************************** | 1119 | /************************************************************************** |
@@ -1112,12 +1193,31 @@ static void efx_start_all(struct efx_nic *efx) | |||
1112 | efx_for_each_channel(channel, efx) | 1193 | efx_for_each_channel(channel, efx) |
1113 | efx_start_channel(channel); | 1194 | efx_start_channel(channel); |
1114 | 1195 | ||
1115 | falcon_enable_interrupts(efx); | 1196 | efx_nic_enable_interrupts(efx); |
1116 | 1197 | ||
1117 | /* Start hardware monitor if we're in RUNNING */ | 1198 | /* Switch to event based MCDI completions after enabling interrupts. |
1118 | if (efx->state == STATE_RUNNING) | 1199 | * If a reset has been scheduled, then we need to stay in polled mode. |
1200 | * Rather than serialising efx_mcdi_mode_event() [which sleeps] and | ||
1201 | * reset_pending [modified from an atomic context], we instead guarantee | ||
1202 | * that efx_mcdi_mode_poll() isn't reverted erroneously */ | ||
1203 | efx_mcdi_mode_event(efx); | ||
1204 | if (efx->reset_pending != RESET_TYPE_NONE) | ||
1205 | efx_mcdi_mode_poll(efx); | ||
1206 | |||
1207 | /* Start the hardware monitor if there is one. Otherwise (we're link | ||
1208 | * event driven), we have to poll the PHY because after an event queue | ||
1209 | * flush, we could have a missed a link state change */ | ||
1210 | if (efx->type->monitor != NULL) { | ||
1119 | queue_delayed_work(efx->workqueue, &efx->monitor_work, | 1211 | queue_delayed_work(efx->workqueue, &efx->monitor_work, |
1120 | efx_monitor_interval); | 1212 | efx_monitor_interval); |
1213 | } else { | ||
1214 | mutex_lock(&efx->mac_lock); | ||
1215 | if (efx->phy_op->poll(efx)) | ||
1216 | efx_link_status_changed(efx); | ||
1217 | mutex_unlock(&efx->mac_lock); | ||
1218 | } | ||
1219 | |||
1220 | efx->type->start_stats(efx); | ||
1121 | } | 1221 | } |
1122 | 1222 | ||
1123 | /* Flush all delayed work. Should only be called when no more delayed work | 1223 | /* Flush all delayed work. Should only be called when no more delayed work |
@@ -1136,8 +1236,6 @@ static void efx_flush_all(struct efx_nic *efx) | |||
1136 | 1236 | ||
1137 | /* Stop scheduled port reconfigurations */ | 1237 | /* Stop scheduled port reconfigurations */ |
1138 | cancel_work_sync(&efx->mac_work); | 1238 | cancel_work_sync(&efx->mac_work); |
1139 | cancel_work_sync(&efx->phy_work); | ||
1140 | |||
1141 | } | 1239 | } |
1142 | 1240 | ||
1143 | /* Quiesce hardware and software without bringing the link down. | 1241 | /* Quiesce hardware and software without bringing the link down. |
@@ -1155,8 +1253,13 @@ static void efx_stop_all(struct efx_nic *efx) | |||
1155 | if (!efx->port_enabled) | 1253 | if (!efx->port_enabled) |
1156 | return; | 1254 | return; |
1157 | 1255 | ||
1256 | efx->type->stop_stats(efx); | ||
1257 | |||
1258 | /* Switch to MCDI polling on Siena before disabling interrupts */ | ||
1259 | efx_mcdi_mode_poll(efx); | ||
1260 | |||
1158 | /* Disable interrupts and wait for ISR to complete */ | 1261 | /* Disable interrupts and wait for ISR to complete */ |
1159 | falcon_disable_interrupts(efx); | 1262 | efx_nic_disable_interrupts(efx); |
1160 | if (efx->legacy_irq) | 1263 | if (efx->legacy_irq) |
1161 | synchronize_irq(efx->legacy_irq); | 1264 | synchronize_irq(efx->legacy_irq); |
1162 | efx_for_each_channel(channel, efx) { | 1265 | efx_for_each_channel(channel, efx) { |
@@ -1173,15 +1276,9 @@ static void efx_stop_all(struct efx_nic *efx) | |||
1173 | * window to loose phy events */ | 1276 | * window to loose phy events */ |
1174 | efx_stop_port(efx); | 1277 | efx_stop_port(efx); |
1175 | 1278 | ||
1176 | /* Flush efx_phy_work, efx_mac_work, refill_workqueue, monitor_work */ | 1279 | /* Flush efx_mac_work(), refill_workqueue, monitor_work */ |
1177 | efx_flush_all(efx); | 1280 | efx_flush_all(efx); |
1178 | 1281 | ||
1179 | /* Isolate the MAC from the TX and RX engines, so that queue | ||
1180 | * flushes will complete in a timely fashion. */ | ||
1181 | falcon_deconfigure_mac_wrapper(efx); | ||
1182 | msleep(10); /* Let the Rx FIFO drain */ | ||
1183 | falcon_drain_tx_fifo(efx); | ||
1184 | |||
1185 | /* Stop the kernel transmit interface late, so the watchdog | 1282 | /* Stop the kernel transmit interface late, so the watchdog |
1186 | * timer isn't ticking over the flush */ | 1283 | * timer isn't ticking over the flush */ |
1187 | if (efx_dev_registered(efx)) { | 1284 | if (efx_dev_registered(efx)) { |
@@ -1201,41 +1298,39 @@ static void efx_remove_all(struct efx_nic *efx) | |||
1201 | efx_remove_nic(efx); | 1298 | efx_remove_nic(efx); |
1202 | } | 1299 | } |
1203 | 1300 | ||
1204 | /* A convinience function to safely flush all the queues */ | ||
1205 | void efx_flush_queues(struct efx_nic *efx) | ||
1206 | { | ||
1207 | EFX_ASSERT_RESET_SERIALISED(efx); | ||
1208 | |||
1209 | efx_stop_all(efx); | ||
1210 | |||
1211 | efx_fini_channels(efx); | ||
1212 | efx_init_channels(efx); | ||
1213 | |||
1214 | efx_start_all(efx); | ||
1215 | } | ||
1216 | |||
1217 | /************************************************************************** | 1301 | /************************************************************************** |
1218 | * | 1302 | * |
1219 | * Interrupt moderation | 1303 | * Interrupt moderation |
1220 | * | 1304 | * |
1221 | **************************************************************************/ | 1305 | **************************************************************************/ |
1222 | 1306 | ||
1307 | static unsigned irq_mod_ticks(int usecs, int resolution) | ||
1308 | { | ||
1309 | if (usecs <= 0) | ||
1310 | return 0; /* cannot receive interrupts ahead of time :-) */ | ||
1311 | if (usecs < resolution) | ||
1312 | return 1; /* never round down to 0 */ | ||
1313 | return usecs / resolution; | ||
1314 | } | ||
1315 | |||
1223 | /* Set interrupt moderation parameters */ | 1316 | /* Set interrupt moderation parameters */ |
1224 | void efx_init_irq_moderation(struct efx_nic *efx, int tx_usecs, int rx_usecs, | 1317 | void efx_init_irq_moderation(struct efx_nic *efx, int tx_usecs, int rx_usecs, |
1225 | bool rx_adaptive) | 1318 | bool rx_adaptive) |
1226 | { | 1319 | { |
1227 | struct efx_tx_queue *tx_queue; | 1320 | struct efx_tx_queue *tx_queue; |
1228 | struct efx_rx_queue *rx_queue; | 1321 | struct efx_rx_queue *rx_queue; |
1322 | unsigned tx_ticks = irq_mod_ticks(tx_usecs, EFX_IRQ_MOD_RESOLUTION); | ||
1323 | unsigned rx_ticks = irq_mod_ticks(rx_usecs, EFX_IRQ_MOD_RESOLUTION); | ||
1229 | 1324 | ||
1230 | EFX_ASSERT_RESET_SERIALISED(efx); | 1325 | EFX_ASSERT_RESET_SERIALISED(efx); |
1231 | 1326 | ||
1232 | efx_for_each_tx_queue(tx_queue, efx) | 1327 | efx_for_each_tx_queue(tx_queue, efx) |
1233 | tx_queue->channel->irq_moderation = tx_usecs; | 1328 | tx_queue->channel->irq_moderation = tx_ticks; |
1234 | 1329 | ||
1235 | efx->irq_rx_adaptive = rx_adaptive; | 1330 | efx->irq_rx_adaptive = rx_adaptive; |
1236 | efx->irq_rx_moderation = rx_usecs; | 1331 | efx->irq_rx_moderation = rx_ticks; |
1237 | efx_for_each_rx_queue(rx_queue, efx) | 1332 | efx_for_each_rx_queue(rx_queue, efx) |
1238 | rx_queue->channel->irq_moderation = rx_usecs; | 1333 | rx_queue->channel->irq_moderation = rx_ticks; |
1239 | } | 1334 | } |
1240 | 1335 | ||
1241 | /************************************************************************** | 1336 | /************************************************************************** |
@@ -1250,10 +1345,10 @@ static void efx_monitor(struct work_struct *data) | |||
1250 | { | 1345 | { |
1251 | struct efx_nic *efx = container_of(data, struct efx_nic, | 1346 | struct efx_nic *efx = container_of(data, struct efx_nic, |
1252 | monitor_work.work); | 1347 | monitor_work.work); |
1253 | int rc; | ||
1254 | 1348 | ||
1255 | EFX_TRACE(efx, "hardware monitor executing on CPU %d\n", | 1349 | EFX_TRACE(efx, "hardware monitor executing on CPU %d\n", |
1256 | raw_smp_processor_id()); | 1350 | raw_smp_processor_id()); |
1351 | BUG_ON(efx->type->monitor == NULL); | ||
1257 | 1352 | ||
1258 | /* If the mac_lock is already held then it is likely a port | 1353 | /* If the mac_lock is already held then it is likely a port |
1259 | * reconfiguration is already in place, which will likely do | 1354 | * reconfiguration is already in place, which will likely do |
@@ -1262,15 +1357,7 @@ static void efx_monitor(struct work_struct *data) | |||
1262 | goto out_requeue; | 1357 | goto out_requeue; |
1263 | if (!efx->port_enabled) | 1358 | if (!efx->port_enabled) |
1264 | goto out_unlock; | 1359 | goto out_unlock; |
1265 | rc = efx->board_info.monitor(efx); | 1360 | efx->type->monitor(efx); |
1266 | if (rc) { | ||
1267 | EFX_ERR(efx, "Board sensor %s; shutting down PHY\n", | ||
1268 | (rc == -ERANGE) ? "reported fault" : "failed"); | ||
1269 | efx->phy_mode |= PHY_MODE_LOW_POWER; | ||
1270 | falcon_sim_phy_event(efx); | ||
1271 | } | ||
1272 | efx->phy_op->poll(efx); | ||
1273 | efx->mac_op->poll(efx); | ||
1274 | 1361 | ||
1275 | out_unlock: | 1362 | out_unlock: |
1276 | mutex_unlock(&efx->mac_lock); | 1363 | mutex_unlock(&efx->mac_lock); |
@@ -1374,6 +1461,12 @@ static int efx_net_open(struct net_device *net_dev) | |||
1374 | return -EIO; | 1461 | return -EIO; |
1375 | if (efx->phy_mode & PHY_MODE_SPECIAL) | 1462 | if (efx->phy_mode & PHY_MODE_SPECIAL) |
1376 | return -EBUSY; | 1463 | return -EBUSY; |
1464 | if (efx_mcdi_poll_reboot(efx) && efx_reset(efx, RESET_TYPE_ALL)) | ||
1465 | return -EIO; | ||
1466 | |||
1467 | /* Notify the kernel of the link state polled during driver load, | ||
1468 | * before the monitor starts running */ | ||
1469 | efx_link_status_changed(efx); | ||
1377 | 1470 | ||
1378 | efx_start_all(efx); | 1471 | efx_start_all(efx); |
1379 | return 0; | 1472 | return 0; |
@@ -1400,20 +1493,6 @@ static int efx_net_stop(struct net_device *net_dev) | |||
1400 | return 0; | 1493 | return 0; |
1401 | } | 1494 | } |
1402 | 1495 | ||
1403 | void efx_stats_disable(struct efx_nic *efx) | ||
1404 | { | ||
1405 | spin_lock(&efx->stats_lock); | ||
1406 | ++efx->stats_disable_count; | ||
1407 | spin_unlock(&efx->stats_lock); | ||
1408 | } | ||
1409 | |||
1410 | void efx_stats_enable(struct efx_nic *efx) | ||
1411 | { | ||
1412 | spin_lock(&efx->stats_lock); | ||
1413 | --efx->stats_disable_count; | ||
1414 | spin_unlock(&efx->stats_lock); | ||
1415 | } | ||
1416 | |||
1417 | /* Context: process, dev_base_lock or RTNL held, non-blocking. */ | 1496 | /* Context: process, dev_base_lock or RTNL held, non-blocking. */ |
1418 | static struct net_device_stats *efx_net_stats(struct net_device *net_dev) | 1497 | static struct net_device_stats *efx_net_stats(struct net_device *net_dev) |
1419 | { | 1498 | { |
@@ -1421,17 +1500,9 @@ static struct net_device_stats *efx_net_stats(struct net_device *net_dev) | |||
1421 | struct efx_mac_stats *mac_stats = &efx->mac_stats; | 1500 | struct efx_mac_stats *mac_stats = &efx->mac_stats; |
1422 | struct net_device_stats *stats = &net_dev->stats; | 1501 | struct net_device_stats *stats = &net_dev->stats; |
1423 | 1502 | ||
1424 | /* Update stats if possible, but do not wait if another thread | 1503 | spin_lock_bh(&efx->stats_lock); |
1425 | * is updating them or if MAC stats fetches are temporarily | 1504 | efx->type->update_stats(efx); |
1426 | * disabled; slightly stale stats are acceptable. | 1505 | spin_unlock_bh(&efx->stats_lock); |
1427 | */ | ||
1428 | if (!spin_trylock(&efx->stats_lock)) | ||
1429 | return stats; | ||
1430 | if (!efx->stats_disable_count) { | ||
1431 | efx->mac_op->update_stats(efx); | ||
1432 | falcon_update_nic_stats(efx); | ||
1433 | } | ||
1434 | spin_unlock(&efx->stats_lock); | ||
1435 | 1506 | ||
1436 | stats->rx_packets = mac_stats->rx_packets; | 1507 | stats->rx_packets = mac_stats->rx_packets; |
1437 | stats->tx_packets = mac_stats->tx_packets; | 1508 | stats->tx_packets = mac_stats->tx_packets; |
@@ -1490,7 +1561,14 @@ static int efx_change_mtu(struct net_device *net_dev, int new_mtu) | |||
1490 | EFX_LOG(efx, "changing MTU to %d\n", new_mtu); | 1561 | EFX_LOG(efx, "changing MTU to %d\n", new_mtu); |
1491 | 1562 | ||
1492 | efx_fini_channels(efx); | 1563 | efx_fini_channels(efx); |
1564 | |||
1565 | mutex_lock(&efx->mac_lock); | ||
1566 | /* Reconfigure the MAC before enabling the dma queues so that | ||
1567 | * the RX buffers don't overflow */ | ||
1493 | net_dev->mtu = new_mtu; | 1568 | net_dev->mtu = new_mtu; |
1569 | efx->mac_op->reconfigure(efx); | ||
1570 | mutex_unlock(&efx->mac_lock); | ||
1571 | |||
1494 | efx_init_channels(efx); | 1572 | efx_init_channels(efx); |
1495 | 1573 | ||
1496 | efx_start_all(efx); | 1574 | efx_start_all(efx); |
@@ -1514,7 +1592,9 @@ static int efx_set_mac_address(struct net_device *net_dev, void *data) | |||
1514 | memcpy(net_dev->dev_addr, new_addr, net_dev->addr_len); | 1592 | memcpy(net_dev->dev_addr, new_addr, net_dev->addr_len); |
1515 | 1593 | ||
1516 | /* Reconfigure the MAC */ | 1594 | /* Reconfigure the MAC */ |
1517 | efx_reconfigure_port(efx); | 1595 | mutex_lock(&efx->mac_lock); |
1596 | efx->mac_op->reconfigure(efx); | ||
1597 | mutex_unlock(&efx->mac_lock); | ||
1518 | 1598 | ||
1519 | return 0; | 1599 | return 0; |
1520 | } | 1600 | } |
@@ -1523,38 +1603,34 @@ static int efx_set_mac_address(struct net_device *net_dev, void *data) | |||
1523 | static void efx_set_multicast_list(struct net_device *net_dev) | 1603 | static void efx_set_multicast_list(struct net_device *net_dev) |
1524 | { | 1604 | { |
1525 | struct efx_nic *efx = netdev_priv(net_dev); | 1605 | struct efx_nic *efx = netdev_priv(net_dev); |
1526 | struct dev_mc_list *mc_list = net_dev->mc_list; | 1606 | struct dev_mc_list *mc_list; |
1527 | union efx_multicast_hash *mc_hash = &efx->multicast_hash; | 1607 | union efx_multicast_hash *mc_hash = &efx->multicast_hash; |
1528 | bool promiscuous = !!(net_dev->flags & IFF_PROMISC); | ||
1529 | bool changed = (efx->promiscuous != promiscuous); | ||
1530 | u32 crc; | 1608 | u32 crc; |
1531 | int bit; | 1609 | int bit; |
1532 | int i; | ||
1533 | 1610 | ||
1534 | efx->promiscuous = promiscuous; | 1611 | efx->promiscuous = !!(net_dev->flags & IFF_PROMISC); |
1535 | 1612 | ||
1536 | /* Build multicast hash table */ | 1613 | /* Build multicast hash table */ |
1537 | if (promiscuous || (net_dev->flags & IFF_ALLMULTI)) { | 1614 | if (efx->promiscuous || (net_dev->flags & IFF_ALLMULTI)) { |
1538 | memset(mc_hash, 0xff, sizeof(*mc_hash)); | 1615 | memset(mc_hash, 0xff, sizeof(*mc_hash)); |
1539 | } else { | 1616 | } else { |
1540 | memset(mc_hash, 0x00, sizeof(*mc_hash)); | 1617 | memset(mc_hash, 0x00, sizeof(*mc_hash)); |
1541 | for (i = 0; i < net_dev->mc_count; i++) { | 1618 | netdev_for_each_mc_addr(mc_list, net_dev) { |
1542 | crc = ether_crc_le(ETH_ALEN, mc_list->dmi_addr); | 1619 | crc = ether_crc_le(ETH_ALEN, mc_list->dmi_addr); |
1543 | bit = crc & (EFX_MCAST_HASH_ENTRIES - 1); | 1620 | bit = crc & (EFX_MCAST_HASH_ENTRIES - 1); |
1544 | set_bit_le(bit, mc_hash->byte); | 1621 | set_bit_le(bit, mc_hash->byte); |
1545 | mc_list = mc_list->next; | ||
1546 | } | 1622 | } |
1547 | } | ||
1548 | |||
1549 | if (!efx->port_enabled) | ||
1550 | /* Delay pushing settings until efx_start_port() */ | ||
1551 | return; | ||
1552 | 1623 | ||
1553 | if (changed) | 1624 | /* Broadcast packets go through the multicast hash filter. |
1554 | queue_work(efx->workqueue, &efx->phy_work); | 1625 | * ether_crc_le() of the broadcast address is 0xbe2612ff |
1626 | * so we always add bit 0xff to the mask. | ||
1627 | */ | ||
1628 | set_bit_le(0xff, mc_hash->byte); | ||
1629 | } | ||
1555 | 1630 | ||
1556 | /* Create and activate new global multicast hash table */ | 1631 | if (efx->port_enabled) |
1557 | falcon_set_multicast_hash(efx); | 1632 | queue_work(efx->workqueue, &efx->mac_work); |
1633 | /* Otherwise efx_start_port() will do this */ | ||
1558 | } | 1634 | } |
1559 | 1635 | ||
1560 | static const struct net_device_ops efx_netdev_ops = { | 1636 | static const struct net_device_ops efx_netdev_ops = { |
@@ -1683,21 +1759,18 @@ static void efx_unregister_netdev(struct efx_nic *efx) | |||
1683 | 1759 | ||
1684 | /* Tears down the entire software state and most of the hardware state | 1760 | /* Tears down the entire software state and most of the hardware state |
1685 | * before reset. */ | 1761 | * before reset. */ |
1686 | void efx_reset_down(struct efx_nic *efx, enum reset_type method, | 1762 | void efx_reset_down(struct efx_nic *efx, enum reset_type method) |
1687 | struct ethtool_cmd *ecmd) | ||
1688 | { | 1763 | { |
1689 | EFX_ASSERT_RESET_SERIALISED(efx); | 1764 | EFX_ASSERT_RESET_SERIALISED(efx); |
1690 | 1765 | ||
1691 | efx_stats_disable(efx); | ||
1692 | efx_stop_all(efx); | 1766 | efx_stop_all(efx); |
1693 | mutex_lock(&efx->mac_lock); | 1767 | mutex_lock(&efx->mac_lock); |
1694 | mutex_lock(&efx->spi_lock); | 1768 | mutex_lock(&efx->spi_lock); |
1695 | 1769 | ||
1696 | efx->phy_op->get_settings(efx, ecmd); | ||
1697 | |||
1698 | efx_fini_channels(efx); | 1770 | efx_fini_channels(efx); |
1699 | if (efx->port_initialized && method != RESET_TYPE_INVISIBLE) | 1771 | if (efx->port_initialized && method != RESET_TYPE_INVISIBLE) |
1700 | efx->phy_op->fini(efx); | 1772 | efx->phy_op->fini(efx); |
1773 | efx->type->fini(efx); | ||
1701 | } | 1774 | } |
1702 | 1775 | ||
1703 | /* This function will always ensure that the locks acquired in | 1776 | /* This function will always ensure that the locks acquired in |
@@ -1705,79 +1778,67 @@ void efx_reset_down(struct efx_nic *efx, enum reset_type method, | |||
1705 | * that we were unable to reinitialise the hardware, and the | 1778 | * that we were unable to reinitialise the hardware, and the |
1706 | * driver should be disabled. If ok is false, then the rx and tx | 1779 | * driver should be disabled. If ok is false, then the rx and tx |
1707 | * engines are not restarted, pending a RESET_DISABLE. */ | 1780 | * engines are not restarted, pending a RESET_DISABLE. */ |
1708 | int efx_reset_up(struct efx_nic *efx, enum reset_type method, | 1781 | int efx_reset_up(struct efx_nic *efx, enum reset_type method, bool ok) |
1709 | struct ethtool_cmd *ecmd, bool ok) | ||
1710 | { | 1782 | { |
1711 | int rc; | 1783 | int rc; |
1712 | 1784 | ||
1713 | EFX_ASSERT_RESET_SERIALISED(efx); | 1785 | EFX_ASSERT_RESET_SERIALISED(efx); |
1714 | 1786 | ||
1715 | rc = falcon_init_nic(efx); | 1787 | rc = efx->type->init(efx); |
1716 | if (rc) { | 1788 | if (rc) { |
1717 | EFX_ERR(efx, "failed to initialise NIC\n"); | 1789 | EFX_ERR(efx, "failed to initialise NIC\n"); |
1718 | ok = false; | 1790 | goto fail; |
1719 | } | 1791 | } |
1720 | 1792 | ||
1793 | if (!ok) | ||
1794 | goto fail; | ||
1795 | |||
1721 | if (efx->port_initialized && method != RESET_TYPE_INVISIBLE) { | 1796 | if (efx->port_initialized && method != RESET_TYPE_INVISIBLE) { |
1722 | if (ok) { | 1797 | rc = efx->phy_op->init(efx); |
1723 | rc = efx->phy_op->init(efx); | 1798 | if (rc) |
1724 | if (rc) | 1799 | goto fail; |
1725 | ok = false; | 1800 | if (efx->phy_op->reconfigure(efx)) |
1726 | } | 1801 | EFX_ERR(efx, "could not restore PHY settings\n"); |
1727 | if (!ok) | ||
1728 | efx->port_initialized = false; | ||
1729 | } | 1802 | } |
1730 | 1803 | ||
1731 | if (ok) { | 1804 | efx->mac_op->reconfigure(efx); |
1732 | efx_init_channels(efx); | ||
1733 | 1805 | ||
1734 | if (efx->phy_op->set_settings(efx, ecmd)) | 1806 | efx_init_channels(efx); |
1735 | EFX_ERR(efx, "could not restore PHY settings\n"); | 1807 | |
1736 | } | 1808 | mutex_unlock(&efx->spi_lock); |
1809 | mutex_unlock(&efx->mac_lock); | ||
1810 | |||
1811 | efx_start_all(efx); | ||
1812 | |||
1813 | return 0; | ||
1814 | |||
1815 | fail: | ||
1816 | efx->port_initialized = false; | ||
1737 | 1817 | ||
1738 | mutex_unlock(&efx->spi_lock); | 1818 | mutex_unlock(&efx->spi_lock); |
1739 | mutex_unlock(&efx->mac_lock); | 1819 | mutex_unlock(&efx->mac_lock); |
1740 | 1820 | ||
1741 | if (ok) { | ||
1742 | efx_start_all(efx); | ||
1743 | efx_stats_enable(efx); | ||
1744 | } | ||
1745 | return rc; | 1821 | return rc; |
1746 | } | 1822 | } |
1747 | 1823 | ||
1748 | /* Reset the NIC as transparently as possible. Do not reset the PHY | 1824 | /* Reset the NIC using the specified method. Note that the reset may |
1749 | * Note that the reset may fail, in which case the card will be left | 1825 | * fail, in which case the card will be left in an unusable state. |
1750 | * in a most-probably-unusable state. | ||
1751 | * | ||
1752 | * This function will sleep. You cannot reset from within an atomic | ||
1753 | * state; use efx_schedule_reset() instead. | ||
1754 | * | 1826 | * |
1755 | * Grabs the rtnl_lock. | 1827 | * Caller must hold the rtnl_lock. |
1756 | */ | 1828 | */ |
1757 | static int efx_reset(struct efx_nic *efx) | 1829 | int efx_reset(struct efx_nic *efx, enum reset_type method) |
1758 | { | 1830 | { |
1759 | struct ethtool_cmd ecmd; | 1831 | int rc, rc2; |
1760 | enum reset_type method = efx->reset_pending; | 1832 | bool disabled; |
1761 | int rc = 0; | ||
1762 | |||
1763 | /* Serialise with kernel interfaces */ | ||
1764 | rtnl_lock(); | ||
1765 | |||
1766 | /* If we're not RUNNING then don't reset. Leave the reset_pending | ||
1767 | * flag set so that efx_pci_probe_main will be retried */ | ||
1768 | if (efx->state != STATE_RUNNING) { | ||
1769 | EFX_INFO(efx, "scheduled reset quenched. NIC not RUNNING\n"); | ||
1770 | goto out_unlock; | ||
1771 | } | ||
1772 | 1833 | ||
1773 | EFX_INFO(efx, "resetting (%d)\n", method); | 1834 | EFX_INFO(efx, "resetting (%s)\n", RESET_TYPE(method)); |
1774 | 1835 | ||
1775 | efx_reset_down(efx, method, &ecmd); | 1836 | efx_reset_down(efx, method); |
1776 | 1837 | ||
1777 | rc = falcon_reset_hw(efx, method); | 1838 | rc = efx->type->reset(efx, method); |
1778 | if (rc) { | 1839 | if (rc) { |
1779 | EFX_ERR(efx, "failed to reset hardware\n"); | 1840 | EFX_ERR(efx, "failed to reset hardware\n"); |
1780 | goto out_disable; | 1841 | goto out; |
1781 | } | 1842 | } |
1782 | 1843 | ||
1783 | /* Allow resets to be rescheduled. */ | 1844 | /* Allow resets to be rescheduled. */ |
@@ -1789,25 +1850,23 @@ static int efx_reset(struct efx_nic *efx) | |||
1789 | * can respond to requests. */ | 1850 | * can respond to requests. */ |
1790 | pci_set_master(efx->pci_dev); | 1851 | pci_set_master(efx->pci_dev); |
1791 | 1852 | ||
1853 | out: | ||
1792 | /* Leave device stopped if necessary */ | 1854 | /* Leave device stopped if necessary */ |
1793 | if (method == RESET_TYPE_DISABLE) { | 1855 | disabled = rc || method == RESET_TYPE_DISABLE; |
1794 | efx_reset_up(efx, method, &ecmd, false); | 1856 | rc2 = efx_reset_up(efx, method, !disabled); |
1795 | rc = -EIO; | 1857 | if (rc2) { |
1796 | } else { | 1858 | disabled = true; |
1797 | rc = efx_reset_up(efx, method, &ecmd, true); | 1859 | if (!rc) |
1860 | rc = rc2; | ||
1798 | } | 1861 | } |
1799 | 1862 | ||
1800 | out_disable: | 1863 | if (disabled) { |
1801 | if (rc) { | 1864 | dev_close(efx->net_dev); |
1802 | EFX_ERR(efx, "has been disabled\n"); | 1865 | EFX_ERR(efx, "has been disabled\n"); |
1803 | efx->state = STATE_DISABLED; | 1866 | efx->state = STATE_DISABLED; |
1804 | dev_close(efx->net_dev); | ||
1805 | } else { | 1867 | } else { |
1806 | EFX_LOG(efx, "reset complete\n"); | 1868 | EFX_LOG(efx, "reset complete\n"); |
1807 | } | 1869 | } |
1808 | |||
1809 | out_unlock: | ||
1810 | rtnl_unlock(); | ||
1811 | return rc; | 1870 | return rc; |
1812 | } | 1871 | } |
1813 | 1872 | ||
@@ -1816,9 +1875,18 @@ out_unlock: | |||
1816 | */ | 1875 | */ |
1817 | static void efx_reset_work(struct work_struct *data) | 1876 | static void efx_reset_work(struct work_struct *data) |
1818 | { | 1877 | { |
1819 | struct efx_nic *nic = container_of(data, struct efx_nic, reset_work); | 1878 | struct efx_nic *efx = container_of(data, struct efx_nic, reset_work); |
1879 | |||
1880 | /* If we're not RUNNING then don't reset. Leave the reset_pending | ||
1881 | * flag set so that efx_pci_probe_main will be retried */ | ||
1882 | if (efx->state != STATE_RUNNING) { | ||
1883 | EFX_INFO(efx, "scheduled reset quenched. NIC not RUNNING\n"); | ||
1884 | return; | ||
1885 | } | ||
1820 | 1886 | ||
1821 | efx_reset(nic); | 1887 | rtnl_lock(); |
1888 | (void)efx_reset(efx, efx->reset_pending); | ||
1889 | rtnl_unlock(); | ||
1822 | } | 1890 | } |
1823 | 1891 | ||
1824 | void efx_schedule_reset(struct efx_nic *efx, enum reset_type type) | 1892 | void efx_schedule_reset(struct efx_nic *efx, enum reset_type type) |
@@ -1843,18 +1911,24 @@ void efx_schedule_reset(struct efx_nic *efx, enum reset_type type) | |||
1843 | case RESET_TYPE_TX_SKIP: | 1911 | case RESET_TYPE_TX_SKIP: |
1844 | method = RESET_TYPE_INVISIBLE; | 1912 | method = RESET_TYPE_INVISIBLE; |
1845 | break; | 1913 | break; |
1914 | case RESET_TYPE_MC_FAILURE: | ||
1846 | default: | 1915 | default: |
1847 | method = RESET_TYPE_ALL; | 1916 | method = RESET_TYPE_ALL; |
1848 | break; | 1917 | break; |
1849 | } | 1918 | } |
1850 | 1919 | ||
1851 | if (method != type) | 1920 | if (method != type) |
1852 | EFX_LOG(efx, "scheduling reset (%d:%d)\n", type, method); | 1921 | EFX_LOG(efx, "scheduling %s reset for %s\n", |
1922 | RESET_TYPE(method), RESET_TYPE(type)); | ||
1853 | else | 1923 | else |
1854 | EFX_LOG(efx, "scheduling reset (%d)\n", method); | 1924 | EFX_LOG(efx, "scheduling %s reset\n", RESET_TYPE(method)); |
1855 | 1925 | ||
1856 | efx->reset_pending = method; | 1926 | efx->reset_pending = method; |
1857 | 1927 | ||
1928 | /* efx_process_channel() will no longer read events once a | ||
1929 | * reset is scheduled. So switch back to poll'd MCDI completions. */ | ||
1930 | efx_mcdi_mode_poll(efx); | ||
1931 | |||
1858 | queue_work(reset_workqueue, &efx->reset_work); | 1932 | queue_work(reset_workqueue, &efx->reset_work); |
1859 | } | 1933 | } |
1860 | 1934 | ||
@@ -1865,17 +1939,21 @@ void efx_schedule_reset(struct efx_nic *efx, enum reset_type type) | |||
1865 | **************************************************************************/ | 1939 | **************************************************************************/ |
1866 | 1940 | ||
1867 | /* PCI device ID table */ | 1941 | /* PCI device ID table */ |
1868 | static struct pci_device_id efx_pci_table[] __devinitdata = { | 1942 | static DEFINE_PCI_DEVICE_TABLE(efx_pci_table) = { |
1869 | {PCI_DEVICE(EFX_VENDID_SFC, FALCON_A_P_DEVID), | 1943 | {PCI_DEVICE(EFX_VENDID_SFC, FALCON_A_P_DEVID), |
1870 | .driver_data = (unsigned long) &falcon_a_nic_type}, | 1944 | .driver_data = (unsigned long) &falcon_a1_nic_type}, |
1871 | {PCI_DEVICE(EFX_VENDID_SFC, FALCON_B_P_DEVID), | 1945 | {PCI_DEVICE(EFX_VENDID_SFC, FALCON_B_P_DEVID), |
1872 | .driver_data = (unsigned long) &falcon_b_nic_type}, | 1946 | .driver_data = (unsigned long) &falcon_b0_nic_type}, |
1947 | {PCI_DEVICE(EFX_VENDID_SFC, BETHPAGE_A_P_DEVID), | ||
1948 | .driver_data = (unsigned long) &siena_a0_nic_type}, | ||
1949 | {PCI_DEVICE(EFX_VENDID_SFC, SIENA_A_P_DEVID), | ||
1950 | .driver_data = (unsigned long) &siena_a0_nic_type}, | ||
1873 | {0} /* end of list */ | 1951 | {0} /* end of list */ |
1874 | }; | 1952 | }; |
1875 | 1953 | ||
1876 | /************************************************************************** | 1954 | /************************************************************************** |
1877 | * | 1955 | * |
1878 | * Dummy PHY/MAC/Board operations | 1956 | * Dummy PHY/MAC operations |
1879 | * | 1957 | * |
1880 | * Can be used for some unimplemented operations | 1958 | * Can be used for some unimplemented operations |
1881 | * Needed so all function pointers are valid and do not have to be tested | 1959 | * Needed so all function pointers are valid and do not have to be tested |
@@ -1887,29 +1965,19 @@ int efx_port_dummy_op_int(struct efx_nic *efx) | |||
1887 | return 0; | 1965 | return 0; |
1888 | } | 1966 | } |
1889 | void efx_port_dummy_op_void(struct efx_nic *efx) {} | 1967 | void efx_port_dummy_op_void(struct efx_nic *efx) {} |
1890 | void efx_port_dummy_op_blink(struct efx_nic *efx, bool blink) {} | 1968 | void efx_port_dummy_op_set_id_led(struct efx_nic *efx, enum efx_led_mode mode) |
1891 | 1969 | { | |
1892 | static struct efx_mac_operations efx_dummy_mac_operations = { | 1970 | } |
1893 | .reconfigure = efx_port_dummy_op_void, | 1971 | bool efx_port_dummy_op_poll(struct efx_nic *efx) |
1894 | .poll = efx_port_dummy_op_void, | 1972 | { |
1895 | .irq = efx_port_dummy_op_void, | 1973 | return false; |
1896 | }; | 1974 | } |
1897 | 1975 | ||
1898 | static struct efx_phy_operations efx_dummy_phy_operations = { | 1976 | static struct efx_phy_operations efx_dummy_phy_operations = { |
1899 | .init = efx_port_dummy_op_int, | 1977 | .init = efx_port_dummy_op_int, |
1900 | .reconfigure = efx_port_dummy_op_void, | 1978 | .reconfigure = efx_port_dummy_op_int, |
1901 | .poll = efx_port_dummy_op_void, | 1979 | .poll = efx_port_dummy_op_poll, |
1902 | .fini = efx_port_dummy_op_void, | 1980 | .fini = efx_port_dummy_op_void, |
1903 | .clear_interrupt = efx_port_dummy_op_void, | ||
1904 | }; | ||
1905 | |||
1906 | static struct efx_board efx_dummy_board_info = { | ||
1907 | .init = efx_port_dummy_op_int, | ||
1908 | .init_leds = efx_port_dummy_op_void, | ||
1909 | .set_id_led = efx_port_dummy_op_blink, | ||
1910 | .monitor = efx_port_dummy_op_int, | ||
1911 | .blink = efx_port_dummy_op_blink, | ||
1912 | .fini = efx_port_dummy_op_void, | ||
1913 | }; | 1981 | }; |
1914 | 1982 | ||
1915 | /************************************************************************** | 1983 | /************************************************************************** |
@@ -1932,26 +2000,26 @@ static int efx_init_struct(struct efx_nic *efx, struct efx_nic_type *type, | |||
1932 | /* Initialise common structures */ | 2000 | /* Initialise common structures */ |
1933 | memset(efx, 0, sizeof(*efx)); | 2001 | memset(efx, 0, sizeof(*efx)); |
1934 | spin_lock_init(&efx->biu_lock); | 2002 | spin_lock_init(&efx->biu_lock); |
1935 | spin_lock_init(&efx->phy_lock); | 2003 | mutex_init(&efx->mdio_lock); |
1936 | mutex_init(&efx->spi_lock); | 2004 | mutex_init(&efx->spi_lock); |
2005 | #ifdef CONFIG_SFC_MTD | ||
2006 | INIT_LIST_HEAD(&efx->mtd_list); | ||
2007 | #endif | ||
1937 | INIT_WORK(&efx->reset_work, efx_reset_work); | 2008 | INIT_WORK(&efx->reset_work, efx_reset_work); |
1938 | INIT_DELAYED_WORK(&efx->monitor_work, efx_monitor); | 2009 | INIT_DELAYED_WORK(&efx->monitor_work, efx_monitor); |
1939 | efx->pci_dev = pci_dev; | 2010 | efx->pci_dev = pci_dev; |
1940 | efx->state = STATE_INIT; | 2011 | efx->state = STATE_INIT; |
1941 | efx->reset_pending = RESET_TYPE_NONE; | 2012 | efx->reset_pending = RESET_TYPE_NONE; |
1942 | strlcpy(efx->name, pci_name(pci_dev), sizeof(efx->name)); | 2013 | strlcpy(efx->name, pci_name(pci_dev), sizeof(efx->name)); |
1943 | efx->board_info = efx_dummy_board_info; | ||
1944 | 2014 | ||
1945 | efx->net_dev = net_dev; | 2015 | efx->net_dev = net_dev; |
1946 | efx->rx_checksum_enabled = true; | 2016 | efx->rx_checksum_enabled = true; |
1947 | spin_lock_init(&efx->netif_stop_lock); | 2017 | spin_lock_init(&efx->netif_stop_lock); |
1948 | spin_lock_init(&efx->stats_lock); | 2018 | spin_lock_init(&efx->stats_lock); |
1949 | efx->stats_disable_count = 1; | ||
1950 | mutex_init(&efx->mac_lock); | 2019 | mutex_init(&efx->mac_lock); |
1951 | efx->mac_op = &efx_dummy_mac_operations; | 2020 | efx->mac_op = type->default_mac_ops; |
1952 | efx->phy_op = &efx_dummy_phy_operations; | 2021 | efx->phy_op = &efx_dummy_phy_operations; |
1953 | efx->mdio.dev = net_dev; | 2022 | efx->mdio.dev = net_dev; |
1954 | INIT_WORK(&efx->phy_work, efx_phy_work); | ||
1955 | INIT_WORK(&efx->mac_work, efx_mac_work); | 2023 | INIT_WORK(&efx->mac_work, efx_mac_work); |
1956 | atomic_set(&efx->netif_stop_count, 1); | 2024 | atomic_set(&efx->netif_stop_count, 1); |
1957 | 2025 | ||
@@ -1981,17 +2049,9 @@ static int efx_init_struct(struct efx_nic *efx, struct efx_nic_type *type, | |||
1981 | 2049 | ||
1982 | efx->type = type; | 2050 | efx->type = type; |
1983 | 2051 | ||
1984 | /* Sanity-check NIC type */ | ||
1985 | EFX_BUG_ON_PARANOID(efx->type->txd_ring_mask & | ||
1986 | (efx->type->txd_ring_mask + 1)); | ||
1987 | EFX_BUG_ON_PARANOID(efx->type->rxd_ring_mask & | ||
1988 | (efx->type->rxd_ring_mask + 1)); | ||
1989 | EFX_BUG_ON_PARANOID(efx->type->evq_size & | ||
1990 | (efx->type->evq_size - 1)); | ||
1991 | /* As close as we can get to guaranteeing that we don't overflow */ | 2052 | /* As close as we can get to guaranteeing that we don't overflow */ |
1992 | EFX_BUG_ON_PARANOID(efx->type->evq_size < | 2053 | BUILD_BUG_ON(EFX_EVQ_SIZE < EFX_TXQ_SIZE + EFX_RXQ_SIZE); |
1993 | (efx->type->txd_ring_mask + 1 + | 2054 | |
1994 | efx->type->rxd_ring_mask + 1)); | ||
1995 | EFX_BUG_ON_PARANOID(efx->type->phys_addr_channels > EFX_MAX_CHANNELS); | 2055 | EFX_BUG_ON_PARANOID(efx->type->phys_addr_channels > EFX_MAX_CHANNELS); |
1996 | 2056 | ||
1997 | /* Higher numbered interrupt modes are less capable! */ | 2057 | /* Higher numbered interrupt modes are less capable! */ |
@@ -2027,19 +2087,10 @@ static void efx_fini_struct(struct efx_nic *efx) | |||
2027 | */ | 2087 | */ |
2028 | static void efx_pci_remove_main(struct efx_nic *efx) | 2088 | static void efx_pci_remove_main(struct efx_nic *efx) |
2029 | { | 2089 | { |
2030 | EFX_ASSERT_RESET_SERIALISED(efx); | 2090 | efx_nic_fini_interrupt(efx); |
2031 | |||
2032 | /* Skip everything if we never obtained a valid membase */ | ||
2033 | if (!efx->membase) | ||
2034 | return; | ||
2035 | |||
2036 | efx_fini_channels(efx); | 2091 | efx_fini_channels(efx); |
2037 | efx_fini_port(efx); | 2092 | efx_fini_port(efx); |
2038 | 2093 | efx->type->fini(efx); | |
2039 | /* Shutdown the board, then the NIC and board state */ | ||
2040 | efx->board_info.fini(efx); | ||
2041 | falcon_fini_interrupt(efx); | ||
2042 | |||
2043 | efx_fini_napi(efx); | 2094 | efx_fini_napi(efx); |
2044 | efx_remove_all(efx); | 2095 | efx_remove_all(efx); |
2045 | } | 2096 | } |
@@ -2063,9 +2114,6 @@ static void efx_pci_remove(struct pci_dev *pci_dev) | |||
2063 | /* Allow any queued efx_resets() to complete */ | 2114 | /* Allow any queued efx_resets() to complete */ |
2064 | rtnl_unlock(); | 2115 | rtnl_unlock(); |
2065 | 2116 | ||
2066 | if (efx->membase == NULL) | ||
2067 | goto out; | ||
2068 | |||
2069 | efx_unregister_netdev(efx); | 2117 | efx_unregister_netdev(efx); |
2070 | 2118 | ||
2071 | efx_mtd_remove(efx); | 2119 | efx_mtd_remove(efx); |
@@ -2078,7 +2126,6 @@ static void efx_pci_remove(struct pci_dev *pci_dev) | |||
2078 | 2126 | ||
2079 | efx_pci_remove_main(efx); | 2127 | efx_pci_remove_main(efx); |
2080 | 2128 | ||
2081 | out: | ||
2082 | efx_fini_io(efx); | 2129 | efx_fini_io(efx); |
2083 | EFX_LOG(efx, "shutdown successful\n"); | 2130 | EFX_LOG(efx, "shutdown successful\n"); |
2084 | 2131 | ||
@@ -2103,39 +2150,31 @@ static int efx_pci_probe_main(struct efx_nic *efx) | |||
2103 | if (rc) | 2150 | if (rc) |
2104 | goto fail2; | 2151 | goto fail2; |
2105 | 2152 | ||
2106 | /* Initialise the board */ | 2153 | rc = efx->type->init(efx); |
2107 | rc = efx->board_info.init(efx); | ||
2108 | if (rc) { | ||
2109 | EFX_ERR(efx, "failed to initialise board\n"); | ||
2110 | goto fail3; | ||
2111 | } | ||
2112 | |||
2113 | rc = falcon_init_nic(efx); | ||
2114 | if (rc) { | 2154 | if (rc) { |
2115 | EFX_ERR(efx, "failed to initialise NIC\n"); | 2155 | EFX_ERR(efx, "failed to initialise NIC\n"); |
2116 | goto fail4; | 2156 | goto fail3; |
2117 | } | 2157 | } |
2118 | 2158 | ||
2119 | rc = efx_init_port(efx); | 2159 | rc = efx_init_port(efx); |
2120 | if (rc) { | 2160 | if (rc) { |
2121 | EFX_ERR(efx, "failed to initialise port\n"); | 2161 | EFX_ERR(efx, "failed to initialise port\n"); |
2122 | goto fail5; | 2162 | goto fail4; |
2123 | } | 2163 | } |
2124 | 2164 | ||
2125 | efx_init_channels(efx); | 2165 | efx_init_channels(efx); |
2126 | 2166 | ||
2127 | rc = falcon_init_interrupt(efx); | 2167 | rc = efx_nic_init_interrupt(efx); |
2128 | if (rc) | 2168 | if (rc) |
2129 | goto fail6; | 2169 | goto fail5; |
2130 | 2170 | ||
2131 | return 0; | 2171 | return 0; |
2132 | 2172 | ||
2133 | fail6: | 2173 | fail5: |
2134 | efx_fini_channels(efx); | 2174 | efx_fini_channels(efx); |
2135 | efx_fini_port(efx); | 2175 | efx_fini_port(efx); |
2136 | fail5: | ||
2137 | fail4: | 2176 | fail4: |
2138 | efx->board_info.fini(efx); | 2177 | efx->type->fini(efx); |
2139 | fail3: | 2178 | fail3: |
2140 | efx_fini_napi(efx); | 2179 | efx_fini_napi(efx); |
2141 | fail2: | 2180 | fail2: |
@@ -2165,9 +2204,11 @@ static int __devinit efx_pci_probe(struct pci_dev *pci_dev, | |||
2165 | net_dev = alloc_etherdev(sizeof(*efx)); | 2204 | net_dev = alloc_etherdev(sizeof(*efx)); |
2166 | if (!net_dev) | 2205 | if (!net_dev) |
2167 | return -ENOMEM; | 2206 | return -ENOMEM; |
2168 | net_dev->features |= (NETIF_F_IP_CSUM | NETIF_F_SG | | 2207 | net_dev->features |= (type->offload_features | NETIF_F_SG | |
2169 | NETIF_F_HIGHDMA | NETIF_F_TSO | | 2208 | NETIF_F_HIGHDMA | NETIF_F_TSO | |
2170 | NETIF_F_GRO); | 2209 | NETIF_F_GRO); |
2210 | if (type->offload_features & NETIF_F_V6_CSUM) | ||
2211 | net_dev->features |= NETIF_F_TSO6; | ||
2171 | /* Mask for features that also apply to VLAN devices */ | 2212 | /* Mask for features that also apply to VLAN devices */ |
2172 | net_dev->vlan_features |= (NETIF_F_ALL_CSUM | NETIF_F_SG | | 2213 | net_dev->vlan_features |= (NETIF_F_ALL_CSUM | NETIF_F_SG | |
2173 | NETIF_F_HIGHDMA | NETIF_F_TSO); | 2214 | NETIF_F_HIGHDMA | NETIF_F_TSO); |
@@ -2219,18 +2260,19 @@ static int __devinit efx_pci_probe(struct pci_dev *pci_dev, | |||
2219 | goto fail4; | 2260 | goto fail4; |
2220 | } | 2261 | } |
2221 | 2262 | ||
2222 | /* Switch to the running state before we expose the device to | 2263 | /* Switch to the running state before we expose the device to the OS, |
2223 | * the OS. This is to ensure that the initial gathering of | 2264 | * so that dev_open()|efx_start_all() will actually start the device */ |
2224 | * MAC stats succeeds. */ | ||
2225 | efx->state = STATE_RUNNING; | 2265 | efx->state = STATE_RUNNING; |
2226 | 2266 | ||
2227 | efx_mtd_probe(efx); /* allowed to fail */ | ||
2228 | |||
2229 | rc = efx_register_netdev(efx); | 2267 | rc = efx_register_netdev(efx); |
2230 | if (rc) | 2268 | if (rc) |
2231 | goto fail5; | 2269 | goto fail5; |
2232 | 2270 | ||
2233 | EFX_LOG(efx, "initialisation successful\n"); | 2271 | EFX_LOG(efx, "initialisation successful\n"); |
2272 | |||
2273 | rtnl_lock(); | ||
2274 | efx_mtd_probe(efx); /* allowed to fail */ | ||
2275 | rtnl_unlock(); | ||
2234 | return 0; | 2276 | return 0; |
2235 | 2277 | ||
2236 | fail5: | 2278 | fail5: |
@@ -2241,16 +2283,113 @@ static int __devinit efx_pci_probe(struct pci_dev *pci_dev, | |||
2241 | fail2: | 2283 | fail2: |
2242 | efx_fini_struct(efx); | 2284 | efx_fini_struct(efx); |
2243 | fail1: | 2285 | fail1: |
2286 | WARN_ON(rc > 0); | ||
2244 | EFX_LOG(efx, "initialisation failed. rc=%d\n", rc); | 2287 | EFX_LOG(efx, "initialisation failed. rc=%d\n", rc); |
2245 | free_netdev(net_dev); | 2288 | free_netdev(net_dev); |
2246 | return rc; | 2289 | return rc; |
2247 | } | 2290 | } |
2248 | 2291 | ||
2292 | static int efx_pm_freeze(struct device *dev) | ||
2293 | { | ||
2294 | struct efx_nic *efx = pci_get_drvdata(to_pci_dev(dev)); | ||
2295 | |||
2296 | efx->state = STATE_FINI; | ||
2297 | |||
2298 | netif_device_detach(efx->net_dev); | ||
2299 | |||
2300 | efx_stop_all(efx); | ||
2301 | efx_fini_channels(efx); | ||
2302 | |||
2303 | return 0; | ||
2304 | } | ||
2305 | |||
2306 | static int efx_pm_thaw(struct device *dev) | ||
2307 | { | ||
2308 | struct efx_nic *efx = pci_get_drvdata(to_pci_dev(dev)); | ||
2309 | |||
2310 | efx->state = STATE_INIT; | ||
2311 | |||
2312 | efx_init_channels(efx); | ||
2313 | |||
2314 | mutex_lock(&efx->mac_lock); | ||
2315 | efx->phy_op->reconfigure(efx); | ||
2316 | mutex_unlock(&efx->mac_lock); | ||
2317 | |||
2318 | efx_start_all(efx); | ||
2319 | |||
2320 | netif_device_attach(efx->net_dev); | ||
2321 | |||
2322 | efx->state = STATE_RUNNING; | ||
2323 | |||
2324 | efx->type->resume_wol(efx); | ||
2325 | |||
2326 | return 0; | ||
2327 | } | ||
2328 | |||
2329 | static int efx_pm_poweroff(struct device *dev) | ||
2330 | { | ||
2331 | struct pci_dev *pci_dev = to_pci_dev(dev); | ||
2332 | struct efx_nic *efx = pci_get_drvdata(pci_dev); | ||
2333 | |||
2334 | efx->type->fini(efx); | ||
2335 | |||
2336 | efx->reset_pending = RESET_TYPE_NONE; | ||
2337 | |||
2338 | pci_save_state(pci_dev); | ||
2339 | return pci_set_power_state(pci_dev, PCI_D3hot); | ||
2340 | } | ||
2341 | |||
2342 | /* Used for both resume and restore */ | ||
2343 | static int efx_pm_resume(struct device *dev) | ||
2344 | { | ||
2345 | struct pci_dev *pci_dev = to_pci_dev(dev); | ||
2346 | struct efx_nic *efx = pci_get_drvdata(pci_dev); | ||
2347 | int rc; | ||
2348 | |||
2349 | rc = pci_set_power_state(pci_dev, PCI_D0); | ||
2350 | if (rc) | ||
2351 | return rc; | ||
2352 | pci_restore_state(pci_dev); | ||
2353 | rc = pci_enable_device(pci_dev); | ||
2354 | if (rc) | ||
2355 | return rc; | ||
2356 | pci_set_master(efx->pci_dev); | ||
2357 | rc = efx->type->reset(efx, RESET_TYPE_ALL); | ||
2358 | if (rc) | ||
2359 | return rc; | ||
2360 | rc = efx->type->init(efx); | ||
2361 | if (rc) | ||
2362 | return rc; | ||
2363 | efx_pm_thaw(dev); | ||
2364 | return 0; | ||
2365 | } | ||
2366 | |||
2367 | static int efx_pm_suspend(struct device *dev) | ||
2368 | { | ||
2369 | int rc; | ||
2370 | |||
2371 | efx_pm_freeze(dev); | ||
2372 | rc = efx_pm_poweroff(dev); | ||
2373 | if (rc) | ||
2374 | efx_pm_resume(dev); | ||
2375 | return rc; | ||
2376 | } | ||
2377 | |||
2378 | static struct dev_pm_ops efx_pm_ops = { | ||
2379 | .suspend = efx_pm_suspend, | ||
2380 | .resume = efx_pm_resume, | ||
2381 | .freeze = efx_pm_freeze, | ||
2382 | .thaw = efx_pm_thaw, | ||
2383 | .poweroff = efx_pm_poweroff, | ||
2384 | .restore = efx_pm_resume, | ||
2385 | }; | ||
2386 | |||
2249 | static struct pci_driver efx_pci_driver = { | 2387 | static struct pci_driver efx_pci_driver = { |
2250 | .name = EFX_DRIVER_NAME, | 2388 | .name = EFX_DRIVER_NAME, |
2251 | .id_table = efx_pci_table, | 2389 | .id_table = efx_pci_table, |
2252 | .probe = efx_pci_probe, | 2390 | .probe = efx_pci_probe, |
2253 | .remove = efx_pci_remove, | 2391 | .remove = efx_pci_remove, |
2392 | .driver.pm = &efx_pm_ops, | ||
2254 | }; | 2393 | }; |
2255 | 2394 | ||
2256 | /************************************************************************** | 2395 | /************************************************************************** |
@@ -2314,8 +2453,8 @@ static void __exit efx_exit_module(void) | |||
2314 | module_init(efx_init_module); | 2453 | module_init(efx_init_module); |
2315 | module_exit(efx_exit_module); | 2454 | module_exit(efx_exit_module); |
2316 | 2455 | ||
2317 | MODULE_AUTHOR("Michael Brown <mbrown@fensystems.co.uk> and " | 2456 | MODULE_AUTHOR("Solarflare Communications and " |
2318 | "Solarflare Communications"); | 2457 | "Michael Brown <mbrown@fensystems.co.uk>"); |
2319 | MODULE_DESCRIPTION("Solarflare Communications network driver"); | 2458 | MODULE_DESCRIPTION("Solarflare Communications network driver"); |
2320 | MODULE_LICENSE("GPL"); | 2459 | MODULE_LICENSE("GPL"); |
2321 | MODULE_DEVICE_TABLE(pci, efx_pci_table); | 2460 | MODULE_DEVICE_TABLE(pci, efx_pci_table); |