summaryrefslogtreecommitdiffstats
path: root/drivers/net/sfc/selftest.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/net/sfc/selftest.c')
-rw-r--r--drivers/net/sfc/selftest.c761
1 files changed, 0 insertions, 761 deletions
diff --git a/drivers/net/sfc/selftest.c b/drivers/net/sfc/selftest.c
deleted file mode 100644
index 822f6c2a6a7c..000000000000
--- a/drivers/net/sfc/selftest.c
+++ /dev/null
@@ -1,761 +0,0 @@
-/****************************************************************************
- * Driver for Solarflare Solarstorm network controllers and boards
- * Copyright 2005-2006 Fen Systems Ltd.
- * Copyright 2006-2010 Solarflare Communications Inc.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published
- * by the Free Software Foundation, incorporated herein by reference.
- */
-
-#include <linux/netdevice.h>
-#include <linux/module.h>
-#include <linux/delay.h>
-#include <linux/kernel_stat.h>
-#include <linux/pci.h>
-#include <linux/ethtool.h>
-#include <linux/ip.h>
-#include <linux/in.h>
-#include <linux/udp.h>
-#include <linux/rtnetlink.h>
-#include <linux/slab.h>
-#include <asm/io.h>
-#include "net_driver.h"
-#include "efx.h"
-#include "nic.h"
-#include "selftest.h"
-#include "workarounds.h"
-
-/*
- * Loopback test packet structure
- *
- * The self-test should stress every RSS vector, and unfortunately
- * Falcon only performs RSS on TCP/UDP packets.
- */
-struct efx_loopback_payload {
- struct ethhdr header;
- struct iphdr ip;
- struct udphdr udp;
- __be16 iteration;
- const char msg[64];
-} __packed;
-
-/* Loopback test source MAC address */
-static const unsigned char payload_source[ETH_ALEN] = {
- 0x00, 0x0f, 0x53, 0x1b, 0x1b, 0x1b,
-};
-
-static const char payload_msg[] =
- "Hello world! This is an Efx loopback test in progress!";
-
-/* Interrupt mode names */
-static const unsigned int efx_interrupt_mode_max = EFX_INT_MODE_MAX;
-static const char *efx_interrupt_mode_names[] = {
- [EFX_INT_MODE_MSIX] = "MSI-X",
- [EFX_INT_MODE_MSI] = "MSI",
- [EFX_INT_MODE_LEGACY] = "legacy",
-};
-#define INT_MODE(efx) \
- STRING_TABLE_LOOKUP(efx->interrupt_mode, efx_interrupt_mode)
-
-/**
- * efx_loopback_state - persistent state during a loopback selftest
- * @flush: Drop all packets in efx_loopback_rx_packet
- * @packet_count: Number of packets being used in this test
- * @skbs: An array of skbs transmitted
- * @offload_csum: Checksums are being offloaded
- * @rx_good: RX good packet count
- * @rx_bad: RX bad packet count
- * @payload: Payload used in tests
- */
-struct efx_loopback_state {
- bool flush;
- int packet_count;
- struct sk_buff **skbs;
- bool offload_csum;
- atomic_t rx_good;
- atomic_t rx_bad;
- struct efx_loopback_payload payload;
-};
-
-/**************************************************************************
- *
- * MII, NVRAM and register tests
- *
- **************************************************************************/
-
-static int efx_test_phy_alive(struct efx_nic *efx, struct efx_self_tests *tests)
-{
- int rc = 0;
-
- if (efx->phy_op->test_alive) {
- rc = efx->phy_op->test_alive(efx);
- tests->phy_alive = rc ? -1 : 1;
- }
-
- return rc;
-}
-
-static int efx_test_nvram(struct efx_nic *efx, struct efx_self_tests *tests)
-{
- int rc = 0;
-
- if (efx->type->test_nvram) {
- rc = efx->type->test_nvram(efx);
- tests->nvram = rc ? -1 : 1;
- }
-
- return rc;
-}
-
-static int efx_test_chip(struct efx_nic *efx, struct efx_self_tests *tests)
-{
- int rc = 0;
-
- /* Test register access */
- if (efx->type->test_registers) {
- rc = efx->type->test_registers(efx);
- tests->registers = rc ? -1 : 1;
- }
-
- return rc;
-}
-
-/**************************************************************************
- *
- * Interrupt and event queue testing
- *
- **************************************************************************/
-
-/* Test generation and receipt of interrupts */
-static int efx_test_interrupts(struct efx_nic *efx,
- struct efx_self_tests *tests)
-{
- netif_dbg(efx, drv, efx->net_dev, "testing interrupts\n");
- tests->interrupt = -1;
-
- /* Reset interrupt flag */
- efx->last_irq_cpu = -1;
- smp_wmb();
-
- efx_nic_generate_interrupt(efx);
-
- /* Wait for arrival of test interrupt. */
- netif_dbg(efx, drv, efx->net_dev, "waiting for test interrupt\n");
- schedule_timeout_uninterruptible(HZ / 10);
- if (efx->last_irq_cpu >= 0)
- goto success;
-
- netif_err(efx, drv, efx->net_dev, "timed out waiting for interrupt\n");
- return -ETIMEDOUT;
-
- success:
- netif_dbg(efx, drv, efx->net_dev, "%s test interrupt seen on CPU%d\n",
- INT_MODE(efx),
- efx->last_irq_cpu);
- tests->interrupt = 1;
- return 0;
-}
-
-/* Test generation and receipt of interrupting events */
-static int efx_test_eventq_irq(struct efx_channel *channel,
- struct efx_self_tests *tests)
-{
- struct efx_nic *efx = channel->efx;
- unsigned int read_ptr, count;
-
- tests->eventq_dma[channel->channel] = -1;
- tests->eventq_int[channel->channel] = -1;
- tests->eventq_poll[channel->channel] = -1;
-
- read_ptr = channel->eventq_read_ptr;
- channel->efx->last_irq_cpu = -1;
- smp_wmb();
-
- efx_nic_generate_test_event(channel);
-
- /* Wait for arrival of interrupt */
- count = 0;
- do {
- schedule_timeout_uninterruptible(HZ / 100);
-
- if (ACCESS_ONCE(channel->eventq_read_ptr) != read_ptr)
- goto eventq_ok;
- } while (++count < 2);
-
- netif_err(efx, drv, efx->net_dev,
- "channel %d timed out waiting for event queue\n",
- channel->channel);
-
- /* See if interrupt arrived */
- if (channel->efx->last_irq_cpu >= 0) {
- netif_err(efx, drv, efx->net_dev,
- "channel %d saw interrupt on CPU%d "
- "during event queue test\n", channel->channel,
- raw_smp_processor_id());
- tests->eventq_int[channel->channel] = 1;
- }
-
- /* Check to see if event was received even if interrupt wasn't */
- if (efx_nic_event_present(channel)) {
- netif_err(efx, drv, efx->net_dev,
- "channel %d event was generated, but "
- "failed to trigger an interrupt\n", channel->channel);
- tests->eventq_dma[channel->channel] = 1;
- }
-
- return -ETIMEDOUT;
- eventq_ok:
- netif_dbg(efx, drv, efx->net_dev, "channel %d event queue passed\n",
- channel->channel);
- tests->eventq_dma[channel->channel] = 1;
- tests->eventq_int[channel->channel] = 1;
- tests->eventq_poll[channel->channel] = 1;
- return 0;
-}
-
-static int efx_test_phy(struct efx_nic *efx, struct efx_self_tests *tests,
- unsigned flags)
-{
- int rc;
-
- if (!efx->phy_op->run_tests)
- return 0;
-
- mutex_lock(&efx->mac_lock);
- rc = efx->phy_op->run_tests(efx, tests->phy_ext, flags);
- mutex_unlock(&efx->mac_lock);
- return rc;
-}
-
-/**************************************************************************
- *
- * Loopback testing
- * NB Only one loopback test can be executing concurrently.
- *
- **************************************************************************/
-
-/* Loopback test RX callback
- * This is called for each received packet during loopback testing.
- */
-void efx_loopback_rx_packet(struct efx_nic *efx,
- const char *buf_ptr, int pkt_len)
-{
- struct efx_loopback_state *state = efx->loopback_selftest;
- struct efx_loopback_payload *received;
- struct efx_loopback_payload *payload;
-
- BUG_ON(!buf_ptr);
-
- /* If we are just flushing, then drop the packet */
- if ((state == NULL) || state->flush)
- return;
-
- payload = &state->payload;
-
- received = (struct efx_loopback_payload *) buf_ptr;
- received->ip.saddr = payload->ip.saddr;
- if (state->offload_csum)
- received->ip.check = payload->ip.check;
-
- /* Check that header exists */
- if (pkt_len < sizeof(received->header)) {
- netif_err(efx, drv, efx->net_dev,
- "saw runt RX packet (length %d) in %s loopback "
- "test\n", pkt_len, LOOPBACK_MODE(efx));
- goto err;
- }
-
- /* Check that the ethernet header exists */
- if (memcmp(&received->header, &payload->header, ETH_HLEN) != 0) {
- netif_err(efx, drv, efx->net_dev,
- "saw non-loopback RX packet in %s loopback test\n",
- LOOPBACK_MODE(efx));
- goto err;
- }
-
- /* Check packet length */
- if (pkt_len != sizeof(*payload)) {
- netif_err(efx, drv, efx->net_dev,
- "saw incorrect RX packet length %d (wanted %d) in "
- "%s loopback test\n", pkt_len, (int)sizeof(*payload),
- LOOPBACK_MODE(efx));
- goto err;
- }
-
- /* Check that IP header matches */
- if (memcmp(&received->ip, &payload->ip, sizeof(payload->ip)) != 0) {
- netif_err(efx, drv, efx->net_dev,
- "saw corrupted IP header in %s loopback test\n",
- LOOPBACK_MODE(efx));
- goto err;
- }
-
- /* Check that msg and padding matches */
- if (memcmp(&received->msg, &payload->msg, sizeof(received->msg)) != 0) {
- netif_err(efx, drv, efx->net_dev,
- "saw corrupted RX packet in %s loopback test\n",
- LOOPBACK_MODE(efx));
- goto err;
- }
-
- /* Check that iteration matches */
- if (received->iteration != payload->iteration) {
- netif_err(efx, drv, efx->net_dev,
- "saw RX packet from iteration %d (wanted %d) in "
- "%s loopback test\n", ntohs(received->iteration),
- ntohs(payload->iteration), LOOPBACK_MODE(efx));
- goto err;
- }
-
- /* Increase correct RX count */
- netif_vdbg(efx, drv, efx->net_dev,
- "got loopback RX in %s loopback test\n", LOOPBACK_MODE(efx));
-
- atomic_inc(&state->rx_good);
- return;
-
- err:
-#ifdef EFX_ENABLE_DEBUG
- if (atomic_read(&state->rx_bad) == 0) {
- netif_err(efx, drv, efx->net_dev, "received packet:\n");
- print_hex_dump(KERN_ERR, "", DUMP_PREFIX_OFFSET, 0x10, 1,
- buf_ptr, pkt_len, 0);
- netif_err(efx, drv, efx->net_dev, "expected packet:\n");
- print_hex_dump(KERN_ERR, "", DUMP_PREFIX_OFFSET, 0x10, 1,
- &state->payload, sizeof(state->payload), 0);
- }
-#endif
- atomic_inc(&state->rx_bad);
-}
-
-/* Initialise an efx_selftest_state for a new iteration */
-static void efx_iterate_state(struct efx_nic *efx)
-{
- struct efx_loopback_state *state = efx->loopback_selftest;
- struct net_device *net_dev = efx->net_dev;
- struct efx_loopback_payload *payload = &state->payload;
-
- /* Initialise the layerII header */
- memcpy(&payload->header.h_dest, net_dev->dev_addr, ETH_ALEN);
- memcpy(&payload->header.h_source, &payload_source, ETH_ALEN);
- payload->header.h_proto = htons(ETH_P_IP);
-
- /* saddr set later and used as incrementing count */
- payload->ip.daddr = htonl(INADDR_LOOPBACK);
- payload->ip.ihl = 5;
- payload->ip.check = htons(0xdead);
- payload->ip.tot_len = htons(sizeof(*payload) - sizeof(struct ethhdr));
- payload->ip.version = IPVERSION;
- payload->ip.protocol = IPPROTO_UDP;
-
- /* Initialise udp header */
- payload->udp.source = 0;
- payload->udp.len = htons(sizeof(*payload) - sizeof(struct ethhdr) -
- sizeof(struct iphdr));
- payload->udp.check = 0; /* checksum ignored */
-
- /* Fill out payload */
- payload->iteration = htons(ntohs(payload->iteration) + 1);
- memcpy(&payload->msg, payload_msg, sizeof(payload_msg));
-
- /* Fill out remaining state members */
- atomic_set(&state->rx_good, 0);
- atomic_set(&state->rx_bad, 0);
- smp_wmb();
-}
-
-static int efx_begin_loopback(struct efx_tx_queue *tx_queue)
-{
- struct efx_nic *efx = tx_queue->efx;
- struct efx_loopback_state *state = efx->loopback_selftest;
- struct efx_loopback_payload *payload;
- struct sk_buff *skb;
- int i;
- netdev_tx_t rc;
-
- /* Transmit N copies of buffer */
- for (i = 0; i < state->packet_count; i++) {
- /* Allocate an skb, holding an extra reference for
- * transmit completion counting */
- skb = alloc_skb(sizeof(state->payload), GFP_KERNEL);
- if (!skb)
- return -ENOMEM;
- state->skbs[i] = skb;
- skb_get(skb);
-
- /* Copy the payload in, incrementing the source address to
- * exercise the rss vectors */
- payload = ((struct efx_loopback_payload *)
- skb_put(skb, sizeof(state->payload)));
- memcpy(payload, &state->payload, sizeof(state->payload));
- payload->ip.saddr = htonl(INADDR_LOOPBACK | (i << 2));
-
- /* Ensure everything we've written is visible to the
- * interrupt handler. */
- smp_wmb();
-
- if (efx_dev_registered(efx))
- netif_tx_lock_bh(efx->net_dev);
- rc = efx_enqueue_skb(tx_queue, skb);
- if (efx_dev_registered(efx))
- netif_tx_unlock_bh(efx->net_dev);
-
- if (rc != NETDEV_TX_OK) {
- netif_err(efx, drv, efx->net_dev,
- "TX queue %d could not transmit packet %d of "
- "%d in %s loopback test\n", tx_queue->queue,
- i + 1, state->packet_count,
- LOOPBACK_MODE(efx));
-
- /* Defer cleaning up the other skbs for the caller */
- kfree_skb(skb);
- return -EPIPE;
- }
- }
-
- return 0;
-}
-
-static int efx_poll_loopback(struct efx_nic *efx)
-{
- struct efx_loopback_state *state = efx->loopback_selftest;
- struct efx_channel *channel;
-
- /* NAPI polling is not enabled, so process channels
- * synchronously */
- efx_for_each_channel(channel, efx) {
- if (channel->work_pending)
- efx_process_channel_now(channel);
- }
- return atomic_read(&state->rx_good) == state->packet_count;
-}
-
-static int efx_end_loopback(struct efx_tx_queue *tx_queue,
- struct efx_loopback_self_tests *lb_tests)
-{
- struct efx_nic *efx = tx_queue->efx;
- struct efx_loopback_state *state = efx->loopback_selftest;
- struct sk_buff *skb;
- int tx_done = 0, rx_good, rx_bad;
- int i, rc = 0;
-
- if (efx_dev_registered(efx))
- netif_tx_lock_bh(efx->net_dev);
-
- /* Count the number of tx completions, and decrement the refcnt. Any
- * skbs not already completed will be free'd when the queue is flushed */
- for (i=0; i < state->packet_count; i++) {
- skb = state->skbs[i];
- if (skb && !skb_shared(skb))
- ++tx_done;
- dev_kfree_skb_any(skb);
- }
-
- if (efx_dev_registered(efx))
- netif_tx_unlock_bh(efx->net_dev);
-
- /* Check TX completion and received packet counts */
- rx_good = atomic_read(&state->rx_good);
- rx_bad = atomic_read(&state->rx_bad);
- if (tx_done != state->packet_count) {
- /* Don't free the skbs; they will be picked up on TX
- * overflow or channel teardown.
- */
- netif_err(efx, drv, efx->net_dev,
- "TX queue %d saw only %d out of an expected %d "
- "TX completion events in %s loopback test\n",
- tx_queue->queue, tx_done, state->packet_count,
- LOOPBACK_MODE(efx));
- rc = -ETIMEDOUT;
- /* Allow to fall through so we see the RX errors as well */
- }
-
- /* We may always be up to a flush away from our desired packet total */
- if (rx_good != state->packet_count) {
- netif_dbg(efx, drv, efx->net_dev,
- "TX queue %d saw only %d out of an expected %d "
- "received packets in %s loopback test\n",
- tx_queue->queue, rx_good, state->packet_count,
- LOOPBACK_MODE(efx));
- rc = -ETIMEDOUT;
- /* Fall through */
- }
-
- /* Update loopback test structure */
- lb_tests->tx_sent[tx_queue->queue] += state->packet_count;
- lb_tests->tx_done[tx_queue->queue] += tx_done;
- lb_tests->rx_good += rx_good;
- lb_tests->rx_bad += rx_bad;
-
- return rc;
-}
-
-static int
-efx_test_loopback(struct efx_tx_queue *tx_queue,
- struct efx_loopback_self_tests *lb_tests)
-{
- struct efx_nic *efx = tx_queue->efx;
- struct efx_loopback_state *state = efx->loopback_selftest;
- int i, begin_rc, end_rc;
-
- for (i = 0; i < 3; i++) {
- /* Determine how many packets to send */
- state->packet_count = efx->txq_entries / 3;
- state->packet_count = min(1 << (i << 2), state->packet_count);
- state->skbs = kzalloc(sizeof(state->skbs[0]) *
- state->packet_count, GFP_KERNEL);
- if (!state->skbs)
- return -ENOMEM;
- state->flush = false;
-
- netif_dbg(efx, drv, efx->net_dev,
- "TX queue %d testing %s loopback with %d packets\n",
- tx_queue->queue, LOOPBACK_MODE(efx),
- state->packet_count);
-
- efx_iterate_state(efx);
- begin_rc = efx_begin_loopback(tx_queue);
-
- /* This will normally complete very quickly, but be
- * prepared to wait up to 100 ms. */
- msleep(1);
- if (!efx_poll_loopback(efx)) {
- msleep(100);
- efx_poll_loopback(efx);
- }
-
- end_rc = efx_end_loopback(tx_queue, lb_tests);
- kfree(state->skbs);
-
- if (begin_rc || end_rc) {
- /* Wait a while to ensure there are no packets
- * floating around after a failure. */
- schedule_timeout_uninterruptible(HZ / 10);
- return begin_rc ? begin_rc : end_rc;
- }
- }
-
- netif_dbg(efx, drv, efx->net_dev,
- "TX queue %d passed %s loopback test with a burst length "
- "of %d packets\n", tx_queue->queue, LOOPBACK_MODE(efx),
- state->packet_count);
-
- return 0;
-}
-
-/* Wait for link up. On Falcon, we would prefer to rely on efx_monitor, but
- * any contention on the mac lock (via e.g. efx_mac_mcast_work) causes it
- * to delay and retry. Therefore, it's safer to just poll directly. Wait
- * for link up and any faults to dissipate. */
-static int efx_wait_for_link(struct efx_nic *efx)
-{
- struct efx_link_state *link_state = &efx->link_state;
- int count, link_up_count = 0;
- bool link_up;
-
- for (count = 0; count < 40; count++) {
- schedule_timeout_uninterruptible(HZ / 10);
-
- if (efx->type->monitor != NULL) {
- mutex_lock(&efx->mac_lock);
- efx->type->monitor(efx);
- mutex_unlock(&efx->mac_lock);
- } else {
- struct efx_channel *channel = efx_get_channel(efx, 0);
- if (channel->work_pending)
- efx_process_channel_now(channel);
- }
-
- mutex_lock(&efx->mac_lock);
- link_up = link_state->up;
- if (link_up)
- link_up = !efx->mac_op->check_fault(efx);
- mutex_unlock(&efx->mac_lock);
-
- if (link_up) {
- if (++link_up_count == 2)
- return 0;
- } else {
- link_up_count = 0;
- }
- }
-
- return -ETIMEDOUT;
-}
-
-static int efx_test_loopbacks(struct efx_nic *efx, struct efx_self_tests *tests,
- unsigned int loopback_modes)
-{
- enum efx_loopback_mode mode;
- struct efx_loopback_state *state;
- struct efx_channel *channel = efx_get_channel(efx, 0);
- struct efx_tx_queue *tx_queue;
- int rc = 0;
-
- /* Set the port loopback_selftest member. From this point on
- * all received packets will be dropped. Mark the state as
- * "flushing" so all inflight packets are dropped */
- state = kzalloc(sizeof(*state), GFP_KERNEL);
- if (state == NULL)
- return -ENOMEM;
- BUG_ON(efx->loopback_selftest);
- state->flush = true;
- efx->loopback_selftest = state;
-
- /* Test all supported loopback modes */
- for (mode = LOOPBACK_NONE; mode <= LOOPBACK_TEST_MAX; mode++) {
- if (!(loopback_modes & (1 << mode)))
- continue;
-
- /* Move the port into the specified loopback mode. */
- state->flush = true;
- mutex_lock(&efx->mac_lock);
- efx->loopback_mode = mode;
- rc = __efx_reconfigure_port(efx);
- mutex_unlock(&efx->mac_lock);
- if (rc) {
- netif_err(efx, drv, efx->net_dev,
- "unable to move into %s loopback\n",
- LOOPBACK_MODE(efx));
- goto out;
- }
-
- rc = efx_wait_for_link(efx);
- if (rc) {
- netif_err(efx, drv, efx->net_dev,
- "loopback %s never came up\n",
- LOOPBACK_MODE(efx));
- goto out;
- }
-
- /* Test all enabled types of TX queue */
- efx_for_each_channel_tx_queue(tx_queue, channel) {
- state->offload_csum = (tx_queue->queue &
- EFX_TXQ_TYPE_OFFLOAD);
- rc = efx_test_loopback(tx_queue,
- &tests->loopback[mode]);
- if (rc)
- goto out;
- }
- }
-
- out:
- /* Remove the flush. The caller will remove the loopback setting */
- state->flush = true;
- efx->loopback_selftest = NULL;
- wmb();
- kfree(state);
-
- return rc;
-}
-
-/**************************************************************************
- *
- * Entry point
- *
- *************************************************************************/
-
-int efx_selftest(struct efx_nic *efx, struct efx_self_tests *tests,
- unsigned flags)
-{
- enum efx_loopback_mode loopback_mode = efx->loopback_mode;
- int phy_mode = efx->phy_mode;
- enum reset_type reset_method = RESET_TYPE_INVISIBLE;
- struct efx_channel *channel;
- int rc_test = 0, rc_reset = 0, rc;
-
- /* Online (i.e. non-disruptive) testing
- * This checks interrupt generation, event delivery and PHY presence. */
-
- rc = efx_test_phy_alive(efx, tests);
- if (rc && !rc_test)
- rc_test = rc;
-
- rc = efx_test_nvram(efx, tests);
- if (rc && !rc_test)
- rc_test = rc;
-
- rc = efx_test_interrupts(efx, tests);
- if (rc && !rc_test)
- rc_test = rc;
-
- efx_for_each_channel(channel, efx) {
- rc = efx_test_eventq_irq(channel, tests);
- if (rc && !rc_test)
- rc_test = rc;
- }
-
- if (rc_test)
- return rc_test;
-
- if (!(flags & ETH_TEST_FL_OFFLINE))
- return efx_test_phy(efx, tests, flags);
-
- /* Offline (i.e. disruptive) testing
- * This checks MAC and PHY loopback on the specified port. */
-
- /* Detach the device so the kernel doesn't transmit during the
- * loopback test and the watchdog timeout doesn't fire.
- */
- netif_device_detach(efx->net_dev);
-
- mutex_lock(&efx->mac_lock);
- if (efx->loopback_modes) {
- /* We need the 312 clock from the PHY to test the XMAC
- * registers, so move into XGMII loopback if available */
- if (efx->loopback_modes & (1 << LOOPBACK_XGMII))
- efx->loopback_mode = LOOPBACK_XGMII;
- else
- efx->loopback_mode = __ffs(efx->loopback_modes);
- }
-
- __efx_reconfigure_port(efx);
- mutex_unlock(&efx->mac_lock);
-
- /* free up all consumers of SRAM (including all the queues) */
- efx_reset_down(efx, reset_method);
-
- rc = efx_test_chip(efx, tests);
- if (rc && !rc_test)
- rc_test = rc;
-
- /* reset the chip to recover from the register test */
- rc_reset = efx->type->reset(efx, reset_method);
-
- /* Ensure that the phy is powered and out of loopback
- * for the bist and loopback tests */
- efx->phy_mode &= ~PHY_MODE_LOW_POWER;
- efx->loopback_mode = LOOPBACK_NONE;
-
- rc = efx_reset_up(efx, reset_method, rc_reset == 0);
- if (rc && !rc_reset)
- rc_reset = rc;
-
- if (rc_reset) {
- netif_err(efx, drv, efx->net_dev,
- "Unable to recover from chip test\n");
- efx_schedule_reset(efx, RESET_TYPE_DISABLE);
- return rc_reset;
- }
-
- rc = efx_test_phy(efx, tests, flags);
- if (rc && !rc_test)
- rc_test = rc;
-
- rc = efx_test_loopbacks(efx, tests, efx->loopback_modes);
- if (rc && !rc_test)
- rc_test = rc;
-
- /* restore the PHY to the previous state */
- mutex_lock(&efx->mac_lock);
- efx->phy_mode = phy_mode;
- efx->loopback_mode = loopback_mode;
- __efx_reconfigure_port(efx);
- mutex_unlock(&efx->mac_lock);
-
- netif_device_attach(efx->net_dev);
-
- return rc_test;
-}
-
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-22 11:51:56 +0000