1 /****************************************************************************
2 * Driver for Solarflare Solarstorm network controllers and boards
3 * Copyright 2005-2006 Fen Systems Ltd.
4 * Copyright 2006-2010 Solarflare Communications Inc.
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
8 * by the Free Software Foundation, incorporated herein by reference.
11 #include <linux/netdevice.h>
12 #include <linux/module.h>
13 #include <linux/delay.h>
14 #include <linux/kernel_stat.h>
15 #include <linux/pci.h>
16 #include <linux/ethtool.h>
19 #include <linux/udp.h>
20 #include <linux/rtnetlink.h>
21 #include <linux/slab.h>
22 #include "net_driver.h"
26 #include "workarounds.h"
28 /* IRQ latency can be enormous because:
29 * - All IRQs may be disabled on a CPU for a *long* time by e.g. a
30 * slow serial console or an old IDE driver doing error recovery
31 * - The PREEMPT_RT patches mostly deal with this, but also allow a
32 * tasklet or normal task to be given higher priority than our IRQ
34 * Try to avoid blaming the hardware for this.
36 #define IRQ_TIMEOUT HZ
39 * Loopback test packet structure
41 * The self-test should stress every RSS vector, and unfortunately
42 * Falcon only performs RSS on TCP/UDP packets.
44 struct efx_loopback_payload
{
52 /* Loopback test source MAC address */
53 static const unsigned char payload_source
[ETH_ALEN
] = {
54 0x00, 0x0f, 0x53, 0x1b, 0x1b, 0x1b,
57 static const char payload_msg
[] =
58 "Hello world! This is an Efx loopback test in progress!";
60 /* Interrupt mode names */
61 static const unsigned int efx_interrupt_mode_max
= EFX_INT_MODE_MAX
;
62 static const char *const efx_interrupt_mode_names
[] = {
63 [EFX_INT_MODE_MSIX
] = "MSI-X",
64 [EFX_INT_MODE_MSI
] = "MSI",
65 [EFX_INT_MODE_LEGACY
] = "legacy",
67 #define INT_MODE(efx) \
68 STRING_TABLE_LOOKUP(efx->interrupt_mode, efx_interrupt_mode)
71 * efx_loopback_state - persistent state during a loopback selftest
72 * @flush: Drop all packets in efx_loopback_rx_packet
73 * @packet_count: Number of packets being used in this test
74 * @skbs: An array of skbs transmitted
75 * @offload_csum: Checksums are being offloaded
76 * @rx_good: RX good packet count
77 * @rx_bad: RX bad packet count
78 * @payload: Payload used in tests
80 struct efx_loopback_state
{
83 struct sk_buff
**skbs
;
87 struct efx_loopback_payload payload
;
90 /* How long to wait for all the packets to arrive (in ms) */
91 #define LOOPBACK_TIMEOUT_MS 1000
93 /**************************************************************************
95 * MII, NVRAM and register tests
97 **************************************************************************/
99 static int efx_test_phy_alive(struct efx_nic
*efx
, struct efx_self_tests
*tests
)
103 if (efx
->phy_op
->test_alive
) {
104 rc
= efx
->phy_op
->test_alive(efx
);
105 tests
->phy_alive
= rc
? -1 : 1;
111 static int efx_test_nvram(struct efx_nic
*efx
, struct efx_self_tests
*tests
)
115 if (efx
->type
->test_nvram
) {
116 rc
= efx
->type
->test_nvram(efx
);
117 tests
->nvram
= rc
? -1 : 1;
123 static int efx_test_chip(struct efx_nic
*efx
, struct efx_self_tests
*tests
)
127 /* Test register access */
128 if (efx
->type
->test_registers
) {
129 rc
= efx
->type
->test_registers(efx
);
130 tests
->registers
= rc
? -1 : 1;
136 /**************************************************************************
138 * Interrupt and event queue testing
140 **************************************************************************/
142 /* Test generation and receipt of interrupts */
143 static int efx_test_interrupts(struct efx_nic
*efx
,
144 struct efx_self_tests
*tests
)
146 unsigned long timeout
, wait
;
149 netif_dbg(efx
, drv
, efx
->net_dev
, "testing interrupts\n");
150 tests
->interrupt
= -1;
152 efx_nic_irq_test_start(efx
);
153 timeout
= jiffies
+ IRQ_TIMEOUT
;
156 /* Wait for arrival of test interrupt. */
157 netif_dbg(efx
, drv
, efx
->net_dev
, "waiting for test interrupt\n");
159 schedule_timeout_uninterruptible(wait
);
160 cpu
= efx_nic_irq_test_irq_cpu(efx
);
164 } while (time_before(jiffies
, timeout
));
166 netif_err(efx
, drv
, efx
->net_dev
, "timed out waiting for interrupt\n");
170 netif_dbg(efx
, drv
, efx
->net_dev
, "%s test interrupt seen on CPU%d\n",
172 tests
->interrupt
= 1;
176 /* Test generation and receipt of interrupting events */
177 static int efx_test_eventq_irq(struct efx_nic
*efx
,
178 struct efx_self_tests
*tests
)
180 struct efx_channel
*channel
;
181 unsigned int read_ptr
[EFX_MAX_CHANNELS
];
182 unsigned long napi_ran
= 0, dma_pend
= 0, int_pend
= 0;
183 unsigned long timeout
, wait
;
185 BUILD_BUG_ON(EFX_MAX_CHANNELS
> BITS_PER_LONG
);
187 efx_for_each_channel(channel
, efx
) {
188 read_ptr
[channel
->channel
] = channel
->eventq_read_ptr
;
189 set_bit(channel
->channel
, &dma_pend
);
190 set_bit(channel
->channel
, &int_pend
);
191 efx_nic_event_test_start(channel
);
194 timeout
= jiffies
+ IRQ_TIMEOUT
;
197 /* Wait for arrival of interrupts. NAPI processing may or may
198 * not complete in time, but we can cope in any case.
201 schedule_timeout_uninterruptible(wait
);
203 efx_for_each_channel(channel
, efx
) {
204 napi_disable(&channel
->napi_str
);
205 if (channel
->eventq_read_ptr
!=
206 read_ptr
[channel
->channel
]) {
207 set_bit(channel
->channel
, &napi_ran
);
208 clear_bit(channel
->channel
, &dma_pend
);
209 clear_bit(channel
->channel
, &int_pend
);
211 if (efx_nic_event_present(channel
))
212 clear_bit(channel
->channel
, &dma_pend
);
213 if (efx_nic_event_test_irq_cpu(channel
) >= 0)
214 clear_bit(channel
->channel
, &int_pend
);
216 napi_enable(&channel
->napi_str
);
217 efx_nic_eventq_read_ack(channel
);
221 } while ((dma_pend
|| int_pend
) && time_before(jiffies
, timeout
));
223 efx_for_each_channel(channel
, efx
) {
224 bool dma_seen
= !test_bit(channel
->channel
, &dma_pend
);
225 bool int_seen
= !test_bit(channel
->channel
, &int_pend
);
227 tests
->eventq_dma
[channel
->channel
] = dma_seen
? 1 : -1;
228 tests
->eventq_int
[channel
->channel
] = int_seen
? 1 : -1;
230 if (dma_seen
&& int_seen
) {
231 netif_dbg(efx
, drv
, efx
->net_dev
,
232 "channel %d event queue passed (with%s NAPI)\n",
234 test_bit(channel
->channel
, &napi_ran
) ?
237 /* Report failure and whether either interrupt or DMA
240 netif_err(efx
, drv
, efx
->net_dev
,
241 "channel %d timed out waiting for event queue\n",
244 netif_err(efx
, drv
, efx
->net_dev
,
245 "channel %d saw interrupt "
246 "during event queue test\n",
249 netif_err(efx
, drv
, efx
->net_dev
,
250 "channel %d event was generated, but "
251 "failed to trigger an interrupt\n",
256 return (dma_pend
|| int_pend
) ? -ETIMEDOUT
: 0;
259 static int efx_test_phy(struct efx_nic
*efx
, struct efx_self_tests
*tests
,
264 if (!efx
->phy_op
->run_tests
)
267 mutex_lock(&efx
->mac_lock
);
268 rc
= efx
->phy_op
->run_tests(efx
, tests
->phy_ext
, flags
);
269 mutex_unlock(&efx
->mac_lock
);
273 /**************************************************************************
276 * NB Only one loopback test can be executing concurrently.
278 **************************************************************************/
280 /* Loopback test RX callback
281 * This is called for each received packet during loopback testing.
283 void efx_loopback_rx_packet(struct efx_nic
*efx
,
284 const char *buf_ptr
, int pkt_len
)
286 struct efx_loopback_state
*state
= efx
->loopback_selftest
;
287 struct efx_loopback_payload
*received
;
288 struct efx_loopback_payload
*payload
;
292 /* If we are just flushing, then drop the packet */
293 if ((state
== NULL
) || state
->flush
)
296 payload
= &state
->payload
;
298 received
= (struct efx_loopback_payload
*) buf_ptr
;
299 received
->ip
.saddr
= payload
->ip
.saddr
;
300 if (state
->offload_csum
)
301 received
->ip
.check
= payload
->ip
.check
;
303 /* Check that header exists */
304 if (pkt_len
< sizeof(received
->header
)) {
305 netif_err(efx
, drv
, efx
->net_dev
,
306 "saw runt RX packet (length %d) in %s loopback "
307 "test\n", pkt_len
, LOOPBACK_MODE(efx
));
311 /* Check that the ethernet header exists */
312 if (memcmp(&received
->header
, &payload
->header
, ETH_HLEN
) != 0) {
313 netif_err(efx
, drv
, efx
->net_dev
,
314 "saw non-loopback RX packet in %s loopback test\n",
319 /* Check packet length */
320 if (pkt_len
!= sizeof(*payload
)) {
321 netif_err(efx
, drv
, efx
->net_dev
,
322 "saw incorrect RX packet length %d (wanted %d) in "
323 "%s loopback test\n", pkt_len
, (int)sizeof(*payload
),
328 /* Check that IP header matches */
329 if (memcmp(&received
->ip
, &payload
->ip
, sizeof(payload
->ip
)) != 0) {
330 netif_err(efx
, drv
, efx
->net_dev
,
331 "saw corrupted IP header in %s loopback test\n",
336 /* Check that msg and padding matches */
337 if (memcmp(&received
->msg
, &payload
->msg
, sizeof(received
->msg
)) != 0) {
338 netif_err(efx
, drv
, efx
->net_dev
,
339 "saw corrupted RX packet in %s loopback test\n",
344 /* Check that iteration matches */
345 if (received
->iteration
!= payload
->iteration
) {
346 netif_err(efx
, drv
, efx
->net_dev
,
347 "saw RX packet from iteration %d (wanted %d) in "
348 "%s loopback test\n", ntohs(received
->iteration
),
349 ntohs(payload
->iteration
), LOOPBACK_MODE(efx
));
353 /* Increase correct RX count */
354 netif_vdbg(efx
, drv
, efx
->net_dev
,
355 "got loopback RX in %s loopback test\n", LOOPBACK_MODE(efx
));
357 atomic_inc(&state
->rx_good
);
362 if (atomic_read(&state
->rx_bad
) == 0) {
363 netif_err(efx
, drv
, efx
->net_dev
, "received packet:\n");
364 print_hex_dump(KERN_ERR
, "", DUMP_PREFIX_OFFSET
, 0x10, 1,
365 buf_ptr
, pkt_len
, 0);
366 netif_err(efx
, drv
, efx
->net_dev
, "expected packet:\n");
367 print_hex_dump(KERN_ERR
, "", DUMP_PREFIX_OFFSET
, 0x10, 1,
368 &state
->payload
, sizeof(state
->payload
), 0);
371 atomic_inc(&state
->rx_bad
);
374 /* Initialise an efx_selftest_state for a new iteration */
375 static void efx_iterate_state(struct efx_nic
*efx
)
377 struct efx_loopback_state
*state
= efx
->loopback_selftest
;
378 struct net_device
*net_dev
= efx
->net_dev
;
379 struct efx_loopback_payload
*payload
= &state
->payload
;
381 /* Initialise the layerII header */
382 memcpy(&payload
->header
.h_dest
, net_dev
->dev_addr
, ETH_ALEN
);
383 memcpy(&payload
->header
.h_source
, &payload_source
, ETH_ALEN
);
384 payload
->header
.h_proto
= htons(ETH_P_IP
);
386 /* saddr set later and used as incrementing count */
387 payload
->ip
.daddr
= htonl(INADDR_LOOPBACK
);
389 payload
->ip
.check
= htons(0xdead);
390 payload
->ip
.tot_len
= htons(sizeof(*payload
) - sizeof(struct ethhdr
));
391 payload
->ip
.version
= IPVERSION
;
392 payload
->ip
.protocol
= IPPROTO_UDP
;
394 /* Initialise udp header */
395 payload
->udp
.source
= 0;
396 payload
->udp
.len
= htons(sizeof(*payload
) - sizeof(struct ethhdr
) -
397 sizeof(struct iphdr
));
398 payload
->udp
.check
= 0; /* checksum ignored */
400 /* Fill out payload */
401 payload
->iteration
= htons(ntohs(payload
->iteration
) + 1);
402 memcpy(&payload
->msg
, payload_msg
, sizeof(payload_msg
));
404 /* Fill out remaining state members */
405 atomic_set(&state
->rx_good
, 0);
406 atomic_set(&state
->rx_bad
, 0);
410 static int efx_begin_loopback(struct efx_tx_queue
*tx_queue
)
412 struct efx_nic
*efx
= tx_queue
->efx
;
413 struct efx_loopback_state
*state
= efx
->loopback_selftest
;
414 struct efx_loopback_payload
*payload
;
419 /* Transmit N copies of buffer */
420 for (i
= 0; i
< state
->packet_count
; i
++) {
421 /* Allocate an skb, holding an extra reference for
422 * transmit completion counting */
423 skb
= alloc_skb(sizeof(state
->payload
), GFP_KERNEL
);
426 state
->skbs
[i
] = skb
;
429 /* Copy the payload in, incrementing the source address to
430 * exercise the rss vectors */
431 payload
= ((struct efx_loopback_payload
*)
432 skb_put(skb
, sizeof(state
->payload
)));
433 memcpy(payload
, &state
->payload
, sizeof(state
->payload
));
434 payload
->ip
.saddr
= htonl(INADDR_LOOPBACK
| (i
<< 2));
436 /* Ensure everything we've written is visible to the
437 * interrupt handler. */
440 netif_tx_lock_bh(efx
->net_dev
);
441 rc
= efx_enqueue_skb(tx_queue
, skb
);
442 netif_tx_unlock_bh(efx
->net_dev
);
444 if (rc
!= NETDEV_TX_OK
) {
445 netif_err(efx
, drv
, efx
->net_dev
,
446 "TX queue %d could not transmit packet %d of "
447 "%d in %s loopback test\n", tx_queue
->queue
,
448 i
+ 1, state
->packet_count
,
451 /* Defer cleaning up the other skbs for the caller */
460 static int efx_poll_loopback(struct efx_nic
*efx
)
462 struct efx_loopback_state
*state
= efx
->loopback_selftest
;
463 struct efx_channel
*channel
;
465 /* NAPI polling is not enabled, so process channels
467 efx_for_each_channel(channel
, efx
) {
468 if (channel
->work_pending
)
469 efx_process_channel_now(channel
);
471 return atomic_read(&state
->rx_good
) == state
->packet_count
;
474 static int efx_end_loopback(struct efx_tx_queue
*tx_queue
,
475 struct efx_loopback_self_tests
*lb_tests
)
477 struct efx_nic
*efx
= tx_queue
->efx
;
478 struct efx_loopback_state
*state
= efx
->loopback_selftest
;
480 int tx_done
= 0, rx_good
, rx_bad
;
483 netif_tx_lock_bh(efx
->net_dev
);
485 /* Count the number of tx completions, and decrement the refcnt. Any
486 * skbs not already completed will be free'd when the queue is flushed */
487 for (i
= 0; i
< state
->packet_count
; i
++) {
488 skb
= state
->skbs
[i
];
489 if (skb
&& !skb_shared(skb
))
491 dev_kfree_skb_any(skb
);
494 netif_tx_unlock_bh(efx
->net_dev
);
496 /* Check TX completion and received packet counts */
497 rx_good
= atomic_read(&state
->rx_good
);
498 rx_bad
= atomic_read(&state
->rx_bad
);
499 if (tx_done
!= state
->packet_count
) {
500 /* Don't free the skbs; they will be picked up on TX
501 * overflow or channel teardown.
503 netif_err(efx
, drv
, efx
->net_dev
,
504 "TX queue %d saw only %d out of an expected %d "
505 "TX completion events in %s loopback test\n",
506 tx_queue
->queue
, tx_done
, state
->packet_count
,
509 /* Allow to fall through so we see the RX errors as well */
512 /* We may always be up to a flush away from our desired packet total */
513 if (rx_good
!= state
->packet_count
) {
514 netif_dbg(efx
, drv
, efx
->net_dev
,
515 "TX queue %d saw only %d out of an expected %d "
516 "received packets in %s loopback test\n",
517 tx_queue
->queue
, rx_good
, state
->packet_count
,
523 /* Update loopback test structure */
524 lb_tests
->tx_sent
[tx_queue
->queue
] += state
->packet_count
;
525 lb_tests
->tx_done
[tx_queue
->queue
] += tx_done
;
526 lb_tests
->rx_good
+= rx_good
;
527 lb_tests
->rx_bad
+= rx_bad
;
533 efx_test_loopback(struct efx_tx_queue
*tx_queue
,
534 struct efx_loopback_self_tests
*lb_tests
)
536 struct efx_nic
*efx
= tx_queue
->efx
;
537 struct efx_loopback_state
*state
= efx
->loopback_selftest
;
538 int i
, begin_rc
, end_rc
;
540 for (i
= 0; i
< 3; i
++) {
541 /* Determine how many packets to send */
542 state
->packet_count
= efx
->txq_entries
/ 3;
543 state
->packet_count
= min(1 << (i
<< 2), state
->packet_count
);
544 state
->skbs
= kcalloc(state
->packet_count
,
545 sizeof(state
->skbs
[0]), GFP_KERNEL
);
548 state
->flush
= false;
550 netif_dbg(efx
, drv
, efx
->net_dev
,
551 "TX queue %d testing %s loopback with %d packets\n",
552 tx_queue
->queue
, LOOPBACK_MODE(efx
),
553 state
->packet_count
);
555 efx_iterate_state(efx
);
556 begin_rc
= efx_begin_loopback(tx_queue
);
558 /* This will normally complete very quickly, but be
559 * prepared to wait much longer. */
561 if (!efx_poll_loopback(efx
)) {
562 msleep(LOOPBACK_TIMEOUT_MS
);
563 efx_poll_loopback(efx
);
566 end_rc
= efx_end_loopback(tx_queue
, lb_tests
);
569 if (begin_rc
|| end_rc
) {
570 /* Wait a while to ensure there are no packets
571 * floating around after a failure. */
572 schedule_timeout_uninterruptible(HZ
/ 10);
573 return begin_rc
? begin_rc
: end_rc
;
577 netif_dbg(efx
, drv
, efx
->net_dev
,
578 "TX queue %d passed %s loopback test with a burst length "
579 "of %d packets\n", tx_queue
->queue
, LOOPBACK_MODE(efx
),
580 state
->packet_count
);
585 /* Wait for link up. On Falcon, we would prefer to rely on efx_monitor, but
586 * any contention on the mac lock (via e.g. efx_mac_mcast_work) causes it
587 * to delay and retry. Therefore, it's safer to just poll directly. Wait
588 * for link up and any faults to dissipate. */
589 static int efx_wait_for_link(struct efx_nic
*efx
)
591 struct efx_link_state
*link_state
= &efx
->link_state
;
592 int count
, link_up_count
= 0;
595 for (count
= 0; count
< 40; count
++) {
596 schedule_timeout_uninterruptible(HZ
/ 10);
598 if (efx
->type
->monitor
!= NULL
) {
599 mutex_lock(&efx
->mac_lock
);
600 efx
->type
->monitor(efx
);
601 mutex_unlock(&efx
->mac_lock
);
603 struct efx_channel
*channel
= efx_get_channel(efx
, 0);
604 if (channel
->work_pending
)
605 efx_process_channel_now(channel
);
608 mutex_lock(&efx
->mac_lock
);
609 link_up
= link_state
->up
;
611 link_up
= !efx
->type
->check_mac_fault(efx
);
612 mutex_unlock(&efx
->mac_lock
);
615 if (++link_up_count
== 2)
625 static int efx_test_loopbacks(struct efx_nic
*efx
, struct efx_self_tests
*tests
,
626 unsigned int loopback_modes
)
628 enum efx_loopback_mode mode
;
629 struct efx_loopback_state
*state
;
630 struct efx_channel
*channel
= efx_get_channel(efx
, 0);
631 struct efx_tx_queue
*tx_queue
;
634 /* Set the port loopback_selftest member. From this point on
635 * all received packets will be dropped. Mark the state as
636 * "flushing" so all inflight packets are dropped */
637 state
= kzalloc(sizeof(*state
), GFP_KERNEL
);
640 BUG_ON(efx
->loopback_selftest
);
642 efx
->loopback_selftest
= state
;
644 /* Test all supported loopback modes */
645 for (mode
= LOOPBACK_NONE
; mode
<= LOOPBACK_TEST_MAX
; mode
++) {
646 if (!(loopback_modes
& (1 << mode
)))
649 /* Move the port into the specified loopback mode. */
651 mutex_lock(&efx
->mac_lock
);
652 efx
->loopback_mode
= mode
;
653 rc
= __efx_reconfigure_port(efx
);
654 mutex_unlock(&efx
->mac_lock
);
656 netif_err(efx
, drv
, efx
->net_dev
,
657 "unable to move into %s loopback\n",
662 rc
= efx_wait_for_link(efx
);
664 netif_err(efx
, drv
, efx
->net_dev
,
665 "loopback %s never came up\n",
670 /* Test all enabled types of TX queue */
671 efx_for_each_channel_tx_queue(tx_queue
, channel
) {
672 state
->offload_csum
= (tx_queue
->queue
&
673 EFX_TXQ_TYPE_OFFLOAD
);
674 rc
= efx_test_loopback(tx_queue
,
675 &tests
->loopback
[mode
]);
682 /* Remove the flush. The caller will remove the loopback setting */
684 efx
->loopback_selftest
= NULL
;
691 /**************************************************************************
695 *************************************************************************/
697 int efx_selftest(struct efx_nic
*efx
, struct efx_self_tests
*tests
,
700 enum efx_loopback_mode loopback_mode
= efx
->loopback_mode
;
701 int phy_mode
= efx
->phy_mode
;
702 enum reset_type reset_method
= RESET_TYPE_INVISIBLE
;
703 int rc_test
= 0, rc_reset
= 0, rc
;
705 efx_selftest_async_cancel(efx
);
707 /* Online (i.e. non-disruptive) testing
708 * This checks interrupt generation, event delivery and PHY presence. */
710 rc
= efx_test_phy_alive(efx
, tests
);
714 rc
= efx_test_nvram(efx
, tests
);
718 rc
= efx_test_interrupts(efx
, tests
);
722 rc
= efx_test_eventq_irq(efx
, tests
);
729 if (!(flags
& ETH_TEST_FL_OFFLINE
))
730 return efx_test_phy(efx
, tests
, flags
);
732 /* Offline (i.e. disruptive) testing
733 * This checks MAC and PHY loopback on the specified port. */
735 /* Detach the device so the kernel doesn't transmit during the
736 * loopback test and the watchdog timeout doesn't fire.
738 netif_device_detach(efx
->net_dev
);
740 mutex_lock(&efx
->mac_lock
);
741 if (efx
->loopback_modes
) {
742 /* We need the 312 clock from the PHY to test the XMAC
743 * registers, so move into XGMII loopback if available */
744 if (efx
->loopback_modes
& (1 << LOOPBACK_XGMII
))
745 efx
->loopback_mode
= LOOPBACK_XGMII
;
747 efx
->loopback_mode
= __ffs(efx
->loopback_modes
);
750 __efx_reconfigure_port(efx
);
751 mutex_unlock(&efx
->mac_lock
);
753 /* free up all consumers of SRAM (including all the queues) */
754 efx_reset_down(efx
, reset_method
);
756 rc
= efx_test_chip(efx
, tests
);
760 /* reset the chip to recover from the register test */
761 rc_reset
= efx
->type
->reset(efx
, reset_method
);
763 /* Ensure that the phy is powered and out of loopback
764 * for the bist and loopback tests */
765 efx
->phy_mode
&= ~PHY_MODE_LOW_POWER
;
766 efx
->loopback_mode
= LOOPBACK_NONE
;
768 rc
= efx_reset_up(efx
, reset_method
, rc_reset
== 0);
773 netif_err(efx
, drv
, efx
->net_dev
,
774 "Unable to recover from chip test\n");
775 efx_schedule_reset(efx
, RESET_TYPE_DISABLE
);
779 rc
= efx_test_phy(efx
, tests
, flags
);
783 rc
= efx_test_loopbacks(efx
, tests
, efx
->loopback_modes
);
787 /* restore the PHY to the previous state */
788 mutex_lock(&efx
->mac_lock
);
789 efx
->phy_mode
= phy_mode
;
790 efx
->loopback_mode
= loopback_mode
;
791 __efx_reconfigure_port(efx
);
792 mutex_unlock(&efx
->mac_lock
);
794 netif_device_attach(efx
->net_dev
);
799 void efx_selftest_async_start(struct efx_nic
*efx
)
801 struct efx_channel
*channel
;
803 efx_for_each_channel(channel
, efx
)
804 efx_nic_event_test_start(channel
);
805 schedule_delayed_work(&efx
->selftest_work
, IRQ_TIMEOUT
);
808 void efx_selftest_async_cancel(struct efx_nic
*efx
)
810 cancel_delayed_work_sync(&efx
->selftest_work
);
813 void efx_selftest_async_work(struct work_struct
*data
)
815 struct efx_nic
*efx
= container_of(data
, struct efx_nic
,
817 struct efx_channel
*channel
;
820 efx_for_each_channel(channel
, efx
) {
821 cpu
= efx_nic_event_test_irq_cpu(channel
);
823 netif_err(efx
, ifup
, efx
->net_dev
,
824 "channel %d failed to trigger an interrupt\n",
827 netif_dbg(efx
, ifup
, efx
->net_dev
,
828 "channel %d triggered interrupt on CPU %d\n",
829 channel
->channel
, cpu
);