diff options
Diffstat (limited to 'ANDROID_3.4.5/drivers/net/ethernet/sfc/selftest.c')
| -rw-r--r-- | ANDROID_3.4.5/drivers/net/ethernet/sfc/selftest.c | 831 |
1 files changed, 0 insertions, 831 deletions
diff --git a/ANDROID_3.4.5/drivers/net/ethernet/sfc/selftest.c b/ANDROID_3.4.5/drivers/net/ethernet/sfc/selftest.c deleted file mode 100644 index de4c0069..00000000 --- a/ANDROID_3.4.5/drivers/net/ethernet/sfc/selftest.c +++ /dev/null @@ -1,831 +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 "net_driver.h" -#include "efx.h" -#include "nic.h" -#include "selftest.h" -#include "workarounds.h" - -/* IRQ latency can be enormous because: - * - All IRQs may be disabled on a CPU for a *long* time by e.g. a - * slow serial console or an old IDE driver doing error recovery - * - The PREEMPT_RT patches mostly deal with this, but also allow a - * tasklet or normal task to be given higher priority than our IRQ - * threads - * Try to avoid blaming the hardware for this. - */ -#define IRQ_TIMEOUT HZ - -/* - * 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 *const 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; -}; - -/* How long to wait for all the packets to arrive (in ms) */ -#define LOOPBACK_TIMEOUT_MS 1000 - -/************************************************************************** - * - * 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) -{ - unsigned long timeout, wait; - int cpu; - - netif_dbg(efx, drv, efx->net_dev, "testing interrupts\n"); - tests->interrupt = -1; - - efx_nic_irq_test_start(efx); - timeout = jiffies + IRQ_TIMEOUT; - wait = 1; - - /* Wait for arrival of test interrupt. */ - netif_dbg(efx, drv, efx->net_dev, "waiting for test interrupt\n"); - do { - schedule_timeout_uninterruptible(wait); - cpu = efx_nic_irq_test_irq_cpu(efx); - if (cpu >= 0) - goto success; - wait *= 2; - } while (time_before(jiffies, timeout)); - - 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), cpu); - tests->interrupt = 1; - return 0; -} - -/* Test generation and receipt of interrupting events */ -static int efx_test_eventq_irq(struct efx_nic *efx, - struct efx_self_tests *tests) -{ - struct efx_channel *channel; - unsigned int read_ptr[EFX_MAX_CHANNELS]; - unsigned long napi_ran = 0, dma_pend = 0, int_pend = 0; - unsigned long timeout, wait; - - BUILD_BUG_ON(EFX_MAX_CHANNELS > BITS_PER_LONG); - - efx_for_each_channel(channel, efx) { - read_ptr[channel->channel] = channel->eventq_read_ptr; - set_bit(channel->channel, &dma_pend); - set_bit(channel->channel, &int_pend); - efx_nic_event_test_start(channel); - } - - timeout = jiffies + IRQ_TIMEOUT; - wait = 1; - - /* Wait for arrival of interrupts. NAPI processing may or may - * not complete in time, but we can cope in any case. - */ - do { - schedule_timeout_uninterruptible(wait); - - efx_for_each_channel(channel, efx) { - napi_disable(&channel->napi_str); - if (channel->eventq_read_ptr != - read_ptr[channel->channel]) { - set_bit(channel->channel, &napi_ran); - clear_bit(channel->channel, &dma_pend); - clear_bit(channel->channel, &int_pend); - } else { - if (efx_nic_event_present(channel)) - clear_bit(channel->channel, &dma_pend); - if (efx_nic_event_test_irq_cpu(channel) >= 0) - clear_bit(channel->channel, &int_pend); - } - napi_enable(&channel->napi_str); - efx_nic_eventq_read_ack(channel); - } - - wait *= 2; - } while ((dma_pend || int_pend) && time_before(jiffies, timeout)); - - efx_for_each_channel(channel, efx) { - bool dma_seen = !test_bit(channel->channel, &dma_pend); - bool int_seen = !test_bit(channel->channel, &int_pend); - - tests->eventq_dma[channel->channel] = dma_seen ? 1 : -1; - tests->eventq_int[channel->channel] = int_seen ? 1 : -1; - - if (dma_seen && int_seen) { - netif_dbg(efx, drv, efx->net_dev, - "channel %d event queue passed (with%s NAPI)\n", - channel->channel, - test_bit(channel->channel, &napi_ran) ? - "" : "out"); - } else { - /* Report failure and whether either interrupt or DMA - * worked - */ - netif_err(efx, drv, efx->net_dev, - "channel %d timed out waiting for event queue\n", - channel->channel); - if (int_seen) - netif_err(efx, drv, efx->net_dev, - "channel %d saw interrupt " - "during event queue test\n", - channel->channel); - if (dma_seen) - netif_err(efx, drv, efx->net_dev, - "channel %d event was generated, but " - "failed to trigger an interrupt\n", - channel->channel); - } - } - - return (dma_pend || int_pend) ? -ETIMEDOUT : 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 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(); - - netif_tx_lock_bh(efx->net_dev); - rc = efx_enqueue_skb(tx_queue, skb); - 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; - - 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); - } - - 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 = kcalloc(state->packet_count, - sizeof(state->skbs[0]), 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 much longer. */ - msleep(1); - if (!efx_poll_loopback(efx)) { - msleep(LOOPBACK_TIMEOUT_MS); - 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->type->check_mac_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; - int rc_test = 0, rc_reset = 0, rc; - - efx_selftest_async_cancel(efx); - - /* 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; - - rc = efx_test_eventq_irq(efx, 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; -} - -void efx_selftest_async_start(struct efx_nic *efx) -{ - struct efx_channel *channel; - - efx_for_each_channel(channel, efx) - efx_nic_event_test_start(channel); - schedule_delayed_work(&efx->selftest_work, IRQ_TIMEOUT); -} - -void efx_selftest_async_cancel(struct efx_nic *efx) -{ - cancel_delayed_work_sync(&efx->selftest_work); -} - -void efx_selftest_async_work(struct work_struct *data) -{ - struct efx_nic *efx = container_of(data, struct efx_nic, - selftest_work.work); - struct efx_channel *channel; - int cpu; - - efx_for_each_channel(channel, efx) { - cpu = efx_nic_event_test_irq_cpu(channel); - if (cpu < 0) - netif_err(efx, ifup, efx->net_dev, - "channel %d failed to trigger an interrupt\n", - channel->channel); - else - netif_dbg(efx, ifup, efx->net_dev, - "channel %d triggered interrupt on CPU %d\n", - channel->channel, cpu); - } -} |