sfc: Extend self-tests
Include PMA/PMD in loopback self-tests as intended. Add NVRAM checksum validation and include it in self-tests. Add register self-tests. Run PHY self-tests where available. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This commit is contained in:
Ben Hutchings
Jeff Garzik
parent
a515089c96
commit
8c8661e4ce
@ -416,12 +416,23 @@ typedef union efx_oword {
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* for read-modify-write operations.
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*
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*/
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#define EFX_INVERT_OWORD(oword) do { \
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(oword).u64[0] = ~((oword).u64[0]); \
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(oword).u64[1] = ~((oword).u64[1]); \
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} while (0)
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#define EFX_AND_OWORD(oword, from, mask) \
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do { \
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(oword).u64[0] = (from).u64[0] & (mask).u64[0]; \
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(oword).u64[1] = (from).u64[1] & (mask).u64[1]; \
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} while (0)
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#define EFX_OR_OWORD(oword, from, mask) \
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do { \
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(oword).u64[0] = (from).u64[0] | (mask).u64[0]; \
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(oword).u64[1] = (from).u64[1] | (mask).u64[1]; \
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} while (0)
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#define EFX_INSERT64(min, max, low, high, value) \
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cpu_to_le64(EFX_INSERT_NATIVE(min, max, low, high, value))
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@ -529,4 +540,10 @@ typedef union efx_oword {
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#define EFX_DMA_TYPE_WIDTH(width) \
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(((width) < DMA_ADDR_T_WIDTH) ? (width) : DMA_ADDR_T_WIDTH)
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/* Static initialiser */
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#define EFX_OWORD32(a, b, c, d) \
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{ .u32 = { __constant_cpu_to_le32(a), __constant_cpu_to_le32(b), \
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__constant_cpu_to_le32(c), __constant_cpu_to_le32(d) } }
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#endif /* EFX_BITFIELD_H */
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@ -508,6 +508,11 @@ static void efx_link_status_changed(struct efx_nic *efx)
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if (!netif_running(efx->net_dev))
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return;
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if (efx->port_inhibited) {
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netif_carrier_off(efx->net_dev);
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return;
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}
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if (efx->link_up != netif_carrier_ok(efx->net_dev)) {
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efx->n_link_state_changes++;
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@ -549,7 +554,7 @@ static void efx_link_status_changed(struct efx_nic *efx)
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/* This call reinitialises the MAC to pick up new PHY settings. The
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* caller must hold the mac_lock */
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static void __efx_reconfigure_port(struct efx_nic *efx)
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void __efx_reconfigure_port(struct efx_nic *efx)
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{
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WARN_ON(!mutex_is_locked(&efx->mac_lock));
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@ -634,6 +639,7 @@ static int efx_init_port(struct efx_nic *efx)
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return rc;
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efx->port_initialized = true;
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efx->stats_enabled = true;
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/* Reconfigure port to program MAC registers */
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falcon_reconfigure_xmac(efx);
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@ -1311,7 +1317,7 @@ static struct net_device_stats *efx_net_stats(struct net_device *net_dev)
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*/
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if (!spin_trylock(&efx->stats_lock))
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return stats;
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if (efx->state == STATE_RUNNING) {
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if (efx->stats_enabled) {
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falcon_update_stats_xmac(efx);
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falcon_update_nic_stats(efx);
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}
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@ -1529,7 +1535,7 @@ static void efx_unregister_netdev(struct efx_nic *efx)
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/* Tears down the entire software state and most of the hardware state
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* before reset. */
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static void efx_reset_down(struct efx_nic *efx, struct ethtool_cmd *ecmd)
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void efx_reset_down(struct efx_nic *efx, struct ethtool_cmd *ecmd)
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{
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int rc;
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@ -1538,6 +1544,7 @@ static void efx_reset_down(struct efx_nic *efx, struct ethtool_cmd *ecmd)
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/* The net_dev->get_stats handler is quite slow, and will fail
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* if a fetch is pending over reset. Serialise against it. */
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spin_lock(&efx->stats_lock);
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efx->stats_enabled = false;
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spin_unlock(&efx->stats_lock);
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efx_stop_all(efx);
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@ -1555,8 +1562,7 @@ static void efx_reset_down(struct efx_nic *efx, struct ethtool_cmd *ecmd)
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* that we were unable to reinitialise the hardware, and the
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* driver should be disabled. If ok is false, then the rx and tx
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* engines are not restarted, pending a RESET_DISABLE. */
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static int efx_reset_up(struct efx_nic *efx, struct ethtool_cmd *ecmd,
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bool ok)
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int efx_reset_up(struct efx_nic *efx, struct ethtool_cmd *ecmd, bool ok)
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{
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int rc;
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@ -1577,8 +1583,10 @@ static int efx_reset_up(struct efx_nic *efx, struct ethtool_cmd *ecmd,
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mutex_unlock(&efx->mac_lock);
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if (ok)
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if (ok) {
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efx_start_all(efx);
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efx->stats_enabled = true;
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}
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return rc;
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}
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@ -37,6 +37,12 @@ extern void efx_flush_queues(struct efx_nic *efx);
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/* Ports */
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extern void efx_reconfigure_port(struct efx_nic *efx);
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extern void __efx_reconfigure_port(struct efx_nic *efx);
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/* Reset handling */
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extern void efx_reset_down(struct efx_nic *efx, struct ethtool_cmd *ecmd);
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extern int efx_reset_up(struct efx_nic *efx, struct ethtool_cmd *ecmd,
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bool ok);
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/* Global */
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extern void efx_schedule_reset(struct efx_nic *efx, enum reset_type type);
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@ -333,7 +333,10 @@ static int efx_ethtool_fill_self_tests(struct efx_nic *efx,
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unsigned int n = 0;
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enum efx_loopback_mode mode;
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/* Interrupt */
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efx_fill_test(n++, strings, data, &tests->mii,
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"core", 0, "mii", NULL);
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efx_fill_test(n++, strings, data, &tests->nvram,
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"core", 0, "nvram", NULL);
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efx_fill_test(n++, strings, data, &tests->interrupt,
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"core", 0, "interrupt", NULL);
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@ -353,16 +356,17 @@ static int efx_ethtool_fill_self_tests(struct efx_nic *efx,
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"eventq.poll", NULL);
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}
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/* PHY presence */
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efx_fill_test(n++, strings, data, &tests->phy_ok,
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EFX_PORT_NAME, "phy_ok", NULL);
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efx_fill_test(n++, strings, data, &tests->registers,
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"core", 0, "registers", NULL);
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efx_fill_test(n++, strings, data, &tests->phy,
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EFX_PORT_NAME, "phy", NULL);
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/* Loopback tests */
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efx_fill_test(n++, strings, data, &tests->loopback_speed,
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EFX_PORT_NAME, "loopback.speed", NULL);
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efx_fill_test(n++, strings, data, &tests->loopback_full_duplex,
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EFX_PORT_NAME, "loopback.full_duplex", NULL);
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for (mode = LOOPBACK_NONE; mode < LOOPBACK_TEST_MAX; mode++) {
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for (mode = LOOPBACK_NONE; mode <= LOOPBACK_TEST_MAX; mode++) {
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if (!(efx->loopback_modes & (1 << mode)))
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continue;
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n = efx_fill_loopback_test(efx,
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@ -500,15 +504,9 @@ static void efx_ethtool_self_test(struct net_device *net_dev,
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goto out;
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/* Perform offline tests only if online tests passed */
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if (offline) {
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/* Stop the kernel from sending packets during the test. */
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efx_stop_queue(efx);
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efx_flush_queues(efx);
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if (offline)
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rc = efx_offline_test(efx, &efx_tests,
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efx->loopback_modes);
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efx_wake_queue(efx);
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}
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out:
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if (!already_up)
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@ -2223,6 +2223,170 @@ void falcon_set_multicast_hash(struct efx_nic *efx)
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falcon_write(efx, &mc_hash->oword[1], MAC_MCAST_HASH_REG1_KER);
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}
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/**************************************************************************
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*
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* Falcon test code
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*
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**************************************************************************/
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int falcon_read_nvram(struct efx_nic *efx, struct falcon_nvconfig *nvconfig_out)
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{
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struct falcon_nvconfig *nvconfig;
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struct efx_spi_device *spi;
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void *region;
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int rc, magic_num, struct_ver;
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__le16 *word, *limit;
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u32 csum;
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region = kmalloc(NVCONFIG_END, GFP_KERNEL);
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if (!region)
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return -ENOMEM;
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nvconfig = region + NVCONFIG_OFFSET;
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spi = efx->spi_flash ? efx->spi_flash : efx->spi_eeprom;
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rc = falcon_spi_read(spi, 0, NVCONFIG_END, NULL, region);
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if (rc) {
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EFX_ERR(efx, "Failed to read %s\n",
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efx->spi_flash ? "flash" : "EEPROM");
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rc = -EIO;
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goto out;
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}
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magic_num = le16_to_cpu(nvconfig->board_magic_num);
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struct_ver = le16_to_cpu(nvconfig->board_struct_ver);
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rc = -EINVAL;
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if (magic_num != NVCONFIG_BOARD_MAGIC_NUM) {
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EFX_ERR(efx, "NVRAM bad magic 0x%x\n", magic_num);
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goto out;
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}
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if (struct_ver < 2) {
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EFX_ERR(efx, "NVRAM has ancient version 0x%x\n", struct_ver);
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goto out;
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} else if (struct_ver < 4) {
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word = &nvconfig->board_magic_num;
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limit = (__le16 *) (nvconfig + 1);
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} else {
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word = region;
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limit = region + NVCONFIG_END;
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}
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for (csum = 0; word < limit; ++word)
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csum += le16_to_cpu(*word);
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if (~csum & 0xffff) {
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EFX_ERR(efx, "NVRAM has incorrect checksum\n");
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goto out;
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}
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rc = 0;
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if (nvconfig_out)
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memcpy(nvconfig_out, nvconfig, sizeof(*nvconfig));
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out:
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kfree(region);
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return rc;
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}
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/* Registers tested in the falcon register test */
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static struct {
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unsigned address;
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efx_oword_t mask;
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} efx_test_registers[] = {
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{ ADR_REGION_REG_KER,
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EFX_OWORD32(0x0001FFFF, 0x0001FFFF, 0x0001FFFF, 0x0001FFFF) },
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{ RX_CFG_REG_KER,
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EFX_OWORD32(0xFFFFFFFE, 0x00017FFF, 0x00000000, 0x00000000) },
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{ TX_CFG_REG_KER,
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EFX_OWORD32(0x7FFF0037, 0x00000000, 0x00000000, 0x00000000) },
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{ TX_CFG2_REG_KER,
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EFX_OWORD32(0xFFFEFE80, 0x1FFFFFFF, 0x020000FE, 0x007FFFFF) },
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{ MAC0_CTRL_REG_KER,
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EFX_OWORD32(0xFFFF0000, 0x00000000, 0x00000000, 0x00000000) },
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{ SRM_TX_DC_CFG_REG_KER,
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EFX_OWORD32(0x001FFFFF, 0x00000000, 0x00000000, 0x00000000) },
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{ RX_DC_CFG_REG_KER,
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EFX_OWORD32(0x0000000F, 0x00000000, 0x00000000, 0x00000000) },
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{ RX_DC_PF_WM_REG_KER,
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EFX_OWORD32(0x000003FF, 0x00000000, 0x00000000, 0x00000000) },
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{ DP_CTRL_REG,
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EFX_OWORD32(0x00000FFF, 0x00000000, 0x00000000, 0x00000000) },
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{ XM_GLB_CFG_REG,
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EFX_OWORD32(0x00000C68, 0x00000000, 0x00000000, 0x00000000) },
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{ XM_TX_CFG_REG,
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EFX_OWORD32(0x00080164, 0x00000000, 0x00000000, 0x00000000) },
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{ XM_RX_CFG_REG,
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EFX_OWORD32(0x07100A0C, 0x00000000, 0x00000000, 0x00000000) },
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{ XM_RX_PARAM_REG,
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EFX_OWORD32(0x00001FF8, 0x00000000, 0x00000000, 0x00000000) },
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{ XM_FC_REG,
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EFX_OWORD32(0xFFFF0001, 0x00000000, 0x00000000, 0x00000000) },
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{ XM_ADR_LO_REG,
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EFX_OWORD32(0xFFFFFFFF, 0x00000000, 0x00000000, 0x00000000) },
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{ XX_SD_CTL_REG,
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EFX_OWORD32(0x0003FF0F, 0x00000000, 0x00000000, 0x00000000) },
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};
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static bool efx_masked_compare_oword(const efx_oword_t *a, const efx_oword_t *b,
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const efx_oword_t *mask)
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{
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return ((a->u64[0] ^ b->u64[0]) & mask->u64[0]) ||
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((a->u64[1] ^ b->u64[1]) & mask->u64[1]);
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}
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int falcon_test_registers(struct efx_nic *efx)
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{
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unsigned address = 0, i, j;
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efx_oword_t mask, imask, original, reg, buf;
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/* Falcon should be in loopback to isolate the XMAC from the PHY */
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WARN_ON(!LOOPBACK_INTERNAL(efx));
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for (i = 0; i < ARRAY_SIZE(efx_test_registers); ++i) {
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address = efx_test_registers[i].address;
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mask = imask = efx_test_registers[i].mask;
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EFX_INVERT_OWORD(imask);
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falcon_read(efx, &original, address);
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/* bit sweep on and off */
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for (j = 0; j < 128; j++) {
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if (!EFX_EXTRACT_OWORD32(mask, j, j))
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continue;
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/* Test this testable bit can be set in isolation */
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EFX_AND_OWORD(reg, original, mask);
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EFX_SET_OWORD32(reg, j, j, 1);
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falcon_write(efx, ®, address);
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falcon_read(efx, &buf, address);
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if (efx_masked_compare_oword(®, &buf, &mask))
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goto fail;
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/* Test this testable bit can be cleared in isolation */
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EFX_OR_OWORD(reg, original, mask);
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EFX_SET_OWORD32(reg, j, j, 0);
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falcon_write(efx, ®, address);
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falcon_read(efx, &buf, address);
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if (efx_masked_compare_oword(®, &buf, &mask))
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goto fail;
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}
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falcon_write(efx, &original, address);
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}
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return 0;
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fail:
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EFX_ERR(efx, "wrote "EFX_OWORD_FMT" read "EFX_OWORD_FMT
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" at address 0x%x mask "EFX_OWORD_FMT"\n", EFX_OWORD_VAL(reg),
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EFX_OWORD_VAL(buf), address, EFX_OWORD_VAL(mask));
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return -EIO;
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}
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/**************************************************************************
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*
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* Device reset
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@ -2404,37 +2568,22 @@ static void falcon_remove_spi_devices(struct efx_nic *efx)
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static int falcon_probe_nvconfig(struct efx_nic *efx)
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{
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struct falcon_nvconfig *nvconfig;
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struct efx_spi_device *spi;
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int magic_num, struct_ver, board_rev;
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int board_rev;
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int rc;
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nvconfig = kmalloc(sizeof(*nvconfig), GFP_KERNEL);
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if (!nvconfig)
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return -ENOMEM;
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/* Read the whole configuration structure into memory. */
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spi = efx->spi_flash ? efx->spi_flash : efx->spi_eeprom;
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rc = falcon_spi_read(spi, NVCONFIG_BASE, sizeof(*nvconfig),
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NULL, (char *)nvconfig);
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if (rc) {
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EFX_ERR(efx, "Failed to read %s\n", efx->spi_flash ? "flash" :
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"EEPROM");
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goto fail1;
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}
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/* Read the MAC addresses */
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memcpy(efx->mac_address, nvconfig->mac_address[0], ETH_ALEN);
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/* Read the board configuration. */
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magic_num = le16_to_cpu(nvconfig->board_magic_num);
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struct_ver = le16_to_cpu(nvconfig->board_struct_ver);
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if (magic_num != NVCONFIG_BOARD_MAGIC_NUM || struct_ver < 2) {
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EFX_ERR(efx, "Non volatile memory bad magic=%x ver=%x "
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"therefore using defaults\n", magic_num, struct_ver);
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rc = falcon_read_nvram(efx, nvconfig);
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if (rc == -EINVAL) {
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EFX_ERR(efx, "NVRAM is invalid therefore using defaults\n");
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efx->phy_type = PHY_TYPE_NONE;
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efx->mii.phy_id = PHY_ADDR_INVALID;
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board_rev = 0;
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rc = 0;
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} else if (rc) {
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goto fail1;
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} else {
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struct falcon_nvconfig_board_v2 *v2 = &nvconfig->board_v2;
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struct falcon_nvconfig_board_v3 *v3 = &nvconfig->board_v3;
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@ -2443,7 +2592,7 @@ static int falcon_probe_nvconfig(struct efx_nic *efx)
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efx->mii.phy_id = v2->port0_phy_addr;
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board_rev = le16_to_cpu(v2->board_revision);
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if (struct_ver >= 3) {
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if (le16_to_cpu(nvconfig->board_struct_ver) >= 3) {
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__le32 fl = v3->spi_device_type[EE_SPI_FLASH];
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__le32 ee = v3->spi_device_type[EE_SPI_EEPROM];
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rc = falcon_spi_device_init(efx, &efx->spi_flash,
|
||||
@ -2459,6 +2608,9 @@ static int falcon_probe_nvconfig(struct efx_nic *efx)
|
||||
}
|
||||
}
|
||||
|
||||
/* Read the MAC addresses */
|
||||
memcpy(efx->mac_address, nvconfig->mac_address[0], ETH_ALEN);
|
||||
|
||||
EFX_LOG(efx, "PHY is %d phy_id %d\n", efx->phy_type, efx->mii.phy_id);
|
||||
|
||||
efx_set_board_info(efx, board_rev);
|
||||
|
||||
@ -93,6 +93,12 @@ extern void falcon_update_nic_stats(struct efx_nic *efx);
|
||||
extern void falcon_set_multicast_hash(struct efx_nic *efx);
|
||||
extern int falcon_reset_xaui(struct efx_nic *efx);
|
||||
|
||||
/* Tests */
|
||||
struct falcon_nvconfig;
|
||||
extern int falcon_read_nvram(struct efx_nic *efx,
|
||||
struct falcon_nvconfig *nvconfig);
|
||||
extern int falcon_test_registers(struct efx_nic *efx);
|
||||
|
||||
/**************************************************************************
|
||||
*
|
||||
* Falcon MAC stats
|
||||
|
||||
@ -1150,7 +1150,9 @@ struct falcon_nvconfig_board_v3 {
|
||||
#define SPI_DEV_TYPE_FIELD(type, field) \
|
||||
(((type) >> EFX_LOW_BIT(field)) & EFX_MASK32(EFX_WIDTH(field)))
|
||||
|
||||
#define NVCONFIG_BASE 0x300
|
||||
#define NVCONFIG_OFFSET 0x300
|
||||
#define NVCONFIG_END 0x400
|
||||
|
||||
#define NVCONFIG_BOARD_MAGIC_NUM 0xFA1C
|
||||
struct falcon_nvconfig {
|
||||
efx_oword_t ee_vpd_cfg_reg; /* 0x300 */
|
||||
|
||||
@ -373,17 +373,9 @@ static void falcon_reconfigure_xgxs_core(struct efx_nic *efx)
|
||||
reset_xgxs = ((xgxs_loopback != old_xgxs_loopback) ||
|
||||
(xaui_loopback != old_xaui_loopback) ||
|
||||
(xgmii_loopback != old_xgmii_loopback));
|
||||
if (reset_xgxs) {
|
||||
falcon_read(efx, ®, XX_PWR_RST_REG);
|
||||
EFX_SET_OWORD_FIELD(reg, XX_RSTXGXSTX_EN, 1);
|
||||
EFX_SET_OWORD_FIELD(reg, XX_RSTXGXSRX_EN, 1);
|
||||
falcon_write(efx, ®, XX_PWR_RST_REG);
|
||||
udelay(1);
|
||||
EFX_SET_OWORD_FIELD(reg, XX_RSTXGXSTX_EN, 0);
|
||||
EFX_SET_OWORD_FIELD(reg, XX_RSTXGXSRX_EN, 0);
|
||||
falcon_write(efx, ®, XX_PWR_RST_REG);
|
||||
udelay(1);
|
||||
}
|
||||
|
||||
if (reset_xgxs)
|
||||
falcon_reset_xaui(efx);
|
||||
}
|
||||
|
||||
falcon_read(efx, ®, XX_CORE_STAT_REG);
|
||||
|
||||
@ -515,6 +515,7 @@ struct efx_phy_operations {
|
||||
void (*clear_interrupt) (struct efx_nic *efx);
|
||||
int (*check_hw) (struct efx_nic *efx);
|
||||
void (*reset_xaui) (struct efx_nic *efx);
|
||||
int (*test) (struct efx_nic *efx);
|
||||
int mmds;
|
||||
unsigned loopbacks;
|
||||
};
|
||||
@ -533,7 +534,7 @@ enum efx_phy_mode {
|
||||
|
||||
static inline bool efx_phy_mode_disabled(enum efx_phy_mode mode)
|
||||
{
|
||||
return (mode & ~PHY_MODE_TX_DISABLED) != 0;
|
||||
return !!(mode & ~PHY_MODE_TX_DISABLED);
|
||||
}
|
||||
|
||||
/*
|
||||
@ -655,13 +656,14 @@ union efx_multicast_hash {
|
||||
* This field will be %NULL if no EEPROM device is present.
|
||||
* @n_rx_nodesc_drop_cnt: RX no descriptor drop count
|
||||
* @nic_data: Hardware dependant state
|
||||
* @mac_lock: MAC access lock. Protects @port_enabled, efx_monitor() and
|
||||
* efx_reconfigure_port()
|
||||
* @mac_lock: MAC access lock. Protects @port_enabled, @phy_mode,
|
||||
* @port_inhibited, efx_monitor() and efx_reconfigure_port()
|
||||
* @port_enabled: Port enabled indicator.
|
||||
* Serialises efx_stop_all(), efx_start_all() and efx_monitor() and
|
||||
* efx_reconfigure_work with kernel interfaces. Safe to read under any
|
||||
* one of the rtnl_lock, mac_lock, or netif_tx_lock, but all three must
|
||||
* be held to modify it.
|
||||
* @port_inhibited: If set, the netif_carrier is always off. Hold the mac_lock
|
||||
* @port_initialized: Port initialized?
|
||||
* @net_dev: Operating system network device. Consider holding the rtnl lock
|
||||
* @rx_checksum_enabled: RX checksumming enabled
|
||||
@ -671,14 +673,16 @@ union efx_multicast_hash {
|
||||
* can provide. Generic code converts these into a standard
|
||||
* &struct net_device_stats.
|
||||
* @stats_buffer: DMA buffer for statistics
|
||||
* @stats_lock: Statistics update lock
|
||||
* @stats_lock: Statistics update lock. Serialises statistics fetches
|
||||
* @stats_enabled: Temporarily disable statistics fetches.
|
||||
* Serialised by @stats_lock
|
||||
* @mac_address: Permanent MAC address
|
||||
* @phy_type: PHY type
|
||||
* @phy_lock: PHY access lock
|
||||
* @phy_op: PHY interface
|
||||
* @phy_data: PHY private data (including PHY-specific stats)
|
||||
* @mii: PHY interface
|
||||
* @phy_mode: PHY operating mode
|
||||
* @phy_mode: PHY operating mode. Serialised by @mac_lock.
|
||||
* @link_up: Link status
|
||||
* @link_options: Link options (MII/GMII format)
|
||||
* @n_link_state_changes: Number of times the link has changed state
|
||||
@ -733,6 +737,7 @@ struct efx_nic {
|
||||
|
||||
struct mutex mac_lock;
|
||||
bool port_enabled;
|
||||
bool port_inhibited;
|
||||
|
||||
bool port_initialized;
|
||||
struct net_device *net_dev;
|
||||
@ -744,6 +749,7 @@ struct efx_nic {
|
||||
struct efx_mac_stats mac_stats;
|
||||
struct efx_buffer stats_buffer;
|
||||
spinlock_t stats_lock;
|
||||
bool stats_enabled;
|
||||
|
||||
unsigned char mac_address[ETH_ALEN];
|
||||
|
||||
|
||||
@ -27,6 +27,9 @@
|
||||
#include "boards.h"
|
||||
#include "workarounds.h"
|
||||
#include "mac.h"
|
||||
#include "spi.h"
|
||||
#include "falcon_io.h"
|
||||
#include "mdio_10g.h"
|
||||
|
||||
/*
|
||||
* Loopback test packet structure
|
||||
@ -51,7 +54,7 @@ static const char *payload_msg =
|
||||
"Hello world! This is an Efx loopback test in progress!";
|
||||
|
||||
/**
|
||||
* efx_selftest_state - persistent state during a selftest
|
||||
* 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
|
||||
@ -59,7 +62,7 @@ static const char *payload_msg =
|
||||
* @rx_bad: RX bad packet count
|
||||
* @payload: Payload used in tests
|
||||
*/
|
||||
struct efx_selftest_state {
|
||||
struct efx_loopback_state {
|
||||
bool flush;
|
||||
int packet_count;
|
||||
struct sk_buff **skbs;
|
||||
@ -74,21 +77,65 @@ struct efx_selftest_state {
|
||||
|
||||
/**************************************************************************
|
||||
*
|
||||
* Configurable values
|
||||
* MII, NVRAM and register tests
|
||||
*
|
||||
**************************************************************************/
|
||||
|
||||
/* Level of loopback testing
|
||||
*
|
||||
* The maximum packet burst length is 16**(n-1), i.e.
|
||||
*
|
||||
* - Level 0 : no packets
|
||||
* - Level 1 : 1 packet
|
||||
* - Level 2 : 17 packets (1 * 1 packet, 1 * 16 packets)
|
||||
* - Level 3 : 273 packets (1 * 1 packet, 1 * 16 packet, 1 * 256 packets)
|
||||
*
|
||||
*/
|
||||
static unsigned int loopback_test_level = 3;
|
||||
static int efx_test_mii(struct efx_nic *efx, struct efx_self_tests *tests)
|
||||
{
|
||||
int rc = 0;
|
||||
u16 physid1, physid2;
|
||||
struct mii_if_info *mii = &efx->mii;
|
||||
struct net_device *net_dev = efx->net_dev;
|
||||
|
||||
if (efx->phy_type == PHY_TYPE_NONE)
|
||||
return 0;
|
||||
|
||||
mutex_lock(&efx->mac_lock);
|
||||
tests->mii = -1;
|
||||
|
||||
physid1 = mii->mdio_read(net_dev, mii->phy_id, MII_PHYSID1);
|
||||
physid2 = mii->mdio_read(net_dev, mii->phy_id, MII_PHYSID2);
|
||||
|
||||
if ((physid1 == 0x0000) || (physid1 == 0xffff) ||
|
||||
(physid2 == 0x0000) || (physid2 == 0xffff)) {
|
||||
EFX_ERR(efx, "no MII PHY present with ID %d\n",
|
||||
mii->phy_id);
|
||||
rc = -EINVAL;
|
||||
goto out;
|
||||
}
|
||||
|
||||
rc = mdio_clause45_check_mmds(efx, efx->phy_op->mmds, 0);
|
||||
if (rc)
|
||||
goto out;
|
||||
|
||||
out:
|
||||
mutex_unlock(&efx->mac_lock);
|
||||
tests->mii = rc ? -1 : 1;
|
||||
return rc;
|
||||
}
|
||||
|
||||
static int efx_test_nvram(struct efx_nic *efx, struct efx_self_tests *tests)
|
||||
{
|
||||
int rc;
|
||||
|
||||
rc = falcon_read_nvram(efx, NULL);
|
||||
tests->nvram = rc ? -1 : 1;
|
||||
return rc;
|
||||
}
|
||||
|
||||
static int efx_test_chip(struct efx_nic *efx, struct efx_self_tests *tests)
|
||||
{
|
||||
int rc;
|
||||
|
||||
/* Not supported on A-series silicon */
|
||||
if (falcon_rev(efx) < FALCON_REV_B0)
|
||||
return 0;
|
||||
|
||||
rc = falcon_test_registers(efx);
|
||||
tests->registers = rc ? -1 : 1;
|
||||
return rc;
|
||||
}
|
||||
|
||||
/**************************************************************************
|
||||
*
|
||||
@ -199,39 +246,18 @@ static int efx_test_eventq_irq(struct efx_channel *channel,
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**************************************************************************
|
||||
*
|
||||
* PHY testing
|
||||
*
|
||||
**************************************************************************/
|
||||
|
||||
/* Check PHY presence by reading the PHY ID registers */
|
||||
static int efx_test_phy(struct efx_nic *efx,
|
||||
struct efx_self_tests *tests)
|
||||
static int efx_test_phy(struct efx_nic *efx, struct efx_self_tests *tests)
|
||||
{
|
||||
u16 physid1, physid2;
|
||||
struct mii_if_info *mii = &efx->mii;
|
||||
struct net_device *net_dev = efx->net_dev;
|
||||
int rc;
|
||||
|
||||
if (efx->phy_type == PHY_TYPE_NONE)
|
||||
if (!efx->phy_op->test)
|
||||
return 0;
|
||||
|
||||
EFX_LOG(efx, "testing PHY presence\n");
|
||||
tests->phy_ok = -1;
|
||||
|
||||
physid1 = mii->mdio_read(net_dev, mii->phy_id, MII_PHYSID1);
|
||||
physid2 = mii->mdio_read(net_dev, mii->phy_id, MII_PHYSID2);
|
||||
|
||||
if ((physid1 != 0x0000) && (physid1 != 0xffff) &&
|
||||
(physid2 != 0x0000) && (physid2 != 0xffff)) {
|
||||
EFX_LOG(efx, "found MII PHY %d ID 0x%x:%x\n",
|
||||
mii->phy_id, physid1, physid2);
|
||||
tests->phy_ok = 1;
|
||||
return 0;
|
||||
}
|
||||
|
||||
EFX_ERR(efx, "no MII PHY present with ID %d\n", mii->phy_id);
|
||||
return -ENODEV;
|
||||
mutex_lock(&efx->mac_lock);
|
||||
rc = efx->phy_op->test(efx);
|
||||
mutex_unlock(&efx->mac_lock);
|
||||
tests->phy = rc ? -1 : 1;
|
||||
return rc;
|
||||
}
|
||||
|
||||
/**************************************************************************
|
||||
@ -247,7 +273,7 @@ static int efx_test_phy(struct efx_nic *efx,
|
||||
void efx_loopback_rx_packet(struct efx_nic *efx,
|
||||
const char *buf_ptr, int pkt_len)
|
||||
{
|
||||
struct efx_selftest_state *state = efx->loopback_selftest;
|
||||
struct efx_loopback_state *state = efx->loopback_selftest;
|
||||
struct efx_loopback_payload *received;
|
||||
struct efx_loopback_payload *payload;
|
||||
|
||||
@ -258,7 +284,7 @@ void efx_loopback_rx_packet(struct efx_nic *efx,
|
||||
return;
|
||||
|
||||
payload = &state->payload;
|
||||
|
||||
|
||||
received = (struct efx_loopback_payload *) buf_ptr;
|
||||
received->ip.saddr = payload->ip.saddr;
|
||||
if (state->offload_csum)
|
||||
@ -332,7 +358,7 @@ void efx_loopback_rx_packet(struct efx_nic *efx,
|
||||
/* Initialise an efx_selftest_state for a new iteration */
|
||||
static void efx_iterate_state(struct efx_nic *efx)
|
||||
{
|
||||
struct efx_selftest_state *state = efx->loopback_selftest;
|
||||
struct efx_loopback_state *state = efx->loopback_selftest;
|
||||
struct net_device *net_dev = efx->net_dev;
|
||||
struct efx_loopback_payload *payload = &state->payload;
|
||||
|
||||
@ -368,14 +394,14 @@ static void efx_iterate_state(struct efx_nic *efx)
|
||||
static int efx_begin_loopback(struct efx_tx_queue *tx_queue)
|
||||
{
|
||||
struct efx_nic *efx = tx_queue->efx;
|
||||
struct efx_selftest_state *state = efx->loopback_selftest;
|
||||
struct efx_loopback_state *state = efx->loopback_selftest;
|
||||
struct efx_loopback_payload *payload;
|
||||
struct sk_buff *skb;
|
||||
int i, rc;
|
||||
|
||||
/* Transmit N copies of buffer */
|
||||
for (i = 0; i < state->packet_count; i++) {
|
||||
/* Allocate an skb, holding an extra reference for
|
||||
/* Allocate an skb, holding an extra reference for
|
||||
* transmit completion counting */
|
||||
skb = alloc_skb(sizeof(state->payload), GFP_KERNEL);
|
||||
if (!skb)
|
||||
@ -416,7 +442,7 @@ static int efx_begin_loopback(struct efx_tx_queue *tx_queue)
|
||||
|
||||
static int efx_poll_loopback(struct efx_nic *efx)
|
||||
{
|
||||
struct efx_selftest_state *state = efx->loopback_selftest;
|
||||
struct efx_loopback_state *state = efx->loopback_selftest;
|
||||
struct efx_channel *channel;
|
||||
|
||||
/* NAPI polling is not enabled, so process channels
|
||||
@ -432,7 +458,7 @@ 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_selftest_state *state = efx->loopback_selftest;
|
||||
struct efx_loopback_state *state = efx->loopback_selftest;
|
||||
struct sk_buff *skb;
|
||||
int tx_done = 0, rx_good, rx_bad;
|
||||
int i, rc = 0;
|
||||
@ -491,10 +517,10 @@ 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_selftest_state *state = efx->loopback_selftest;
|
||||
struct efx_loopback_state *state = efx->loopback_selftest;
|
||||
int i, begin_rc, end_rc;
|
||||
|
||||
for (i = 0; i < loopback_test_level; i++) {
|
||||
for (i = 0; i < 3; i++) {
|
||||
/* Determine how many packets to send */
|
||||
state->packet_count = (efx->type->txd_ring_mask + 1) / 3;
|
||||
state->packet_count = min(1 << (i << 2), state->packet_count);
|
||||
@ -537,42 +563,28 @@ efx_test_loopback(struct efx_tx_queue *tx_queue,
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int efx_test_loopbacks(struct efx_nic *efx,
|
||||
static int efx_test_loopbacks(struct efx_nic *efx, struct ethtool_cmd ecmd,
|
||||
struct efx_self_tests *tests,
|
||||
unsigned int loopback_modes)
|
||||
{
|
||||
struct efx_selftest_state *state = efx->loopback_selftest;
|
||||
struct ethtool_cmd ecmd, ecmd_loopback;
|
||||
enum efx_loopback_mode mode;
|
||||
struct efx_loopback_state *state;
|
||||
struct efx_tx_queue *tx_queue;
|
||||
enum efx_loopback_mode old_mode, mode;
|
||||
bool link_up;
|
||||
int count, rc;
|
||||
int count, rc = 0;
|
||||
|
||||
rc = efx_ethtool_get_settings(efx->net_dev, &ecmd);
|
||||
if (rc) {
|
||||
EFX_ERR(efx, "could not get GMII settings\n");
|
||||
return rc;
|
||||
}
|
||||
old_mode = efx->loopback_mode;
|
||||
|
||||
/* Disable autonegotiation for the purposes of loopback */
|
||||
memcpy(&ecmd_loopback, &ecmd, sizeof(ecmd_loopback));
|
||||
if (ecmd_loopback.autoneg == AUTONEG_ENABLE) {
|
||||
ecmd_loopback.autoneg = AUTONEG_DISABLE;
|
||||
ecmd_loopback.duplex = DUPLEX_FULL;
|
||||
ecmd_loopback.speed = SPEED_10000;
|
||||
}
|
||||
|
||||
rc = efx_ethtool_set_settings(efx->net_dev, &ecmd_loopback);
|
||||
if (rc) {
|
||||
EFX_ERR(efx, "could not disable autonegotiation\n");
|
||||
goto out;
|
||||
}
|
||||
tests->loopback_speed = ecmd_loopback.speed;
|
||||
tests->loopback_full_duplex = ecmd_loopback.duplex;
|
||||
/* 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++) {
|
||||
for (mode = LOOPBACK_NONE; mode <= LOOPBACK_TEST_MAX; mode++) {
|
||||
if (!(loopback_modes & (1 << mode)))
|
||||
continue;
|
||||
|
||||
@ -601,7 +613,7 @@ static int efx_test_loopbacks(struct efx_nic *efx,
|
||||
*/
|
||||
link_up = efx->link_up;
|
||||
if (!falcon_xaui_link_ok(efx))
|
||||
link_up = 0;
|
||||
link_up = false;
|
||||
|
||||
} while ((++count < 20) && !link_up);
|
||||
|
||||
@ -629,10 +641,11 @@ static int efx_test_loopbacks(struct efx_nic *efx,
|
||||
}
|
||||
|
||||
out:
|
||||
/* Take out of loopback and restore PHY settings */
|
||||
/* Remove the flush. The caller will remove the loopback setting */
|
||||
state->flush = true;
|
||||
efx->loopback_mode = old_mode;
|
||||
efx_ethtool_set_settings(efx->net_dev, &ecmd);
|
||||
efx->loopback_selftest = NULL;
|
||||
wmb();
|
||||
kfree(state);
|
||||
|
||||
return rc;
|
||||
}
|
||||
@ -648,18 +661,27 @@ static int efx_test_loopbacks(struct efx_nic *efx,
|
||||
int efx_online_test(struct efx_nic *efx, struct efx_self_tests *tests)
|
||||
{
|
||||
struct efx_channel *channel;
|
||||
int rc;
|
||||
int rc, rc2 = 0;
|
||||
|
||||
rc = efx_test_mii(efx, tests);
|
||||
if (rc && !rc2)
|
||||
rc2 = rc;
|
||||
|
||||
rc = efx_test_nvram(efx, tests);
|
||||
if (rc && !rc2)
|
||||
rc2 = rc;
|
||||
|
||||
rc = efx_test_interrupts(efx, tests);
|
||||
if (rc)
|
||||
return rc;
|
||||
if (rc && !rc2)
|
||||
rc2 = rc;
|
||||
|
||||
efx_for_each_channel(channel, efx) {
|
||||
rc = efx_test_eventq_irq(channel, tests);
|
||||
if (rc)
|
||||
return rc;
|
||||
if (rc && !rc2)
|
||||
rc2 = rc;
|
||||
}
|
||||
rc = efx_test_phy(efx, tests);
|
||||
return rc;
|
||||
|
||||
return rc2;
|
||||
}
|
||||
|
||||
/* Offline (i.e. disruptive) testing
|
||||
@ -667,27 +689,66 @@ int efx_online_test(struct efx_nic *efx, struct efx_self_tests *tests)
|
||||
int efx_offline_test(struct efx_nic *efx,
|
||||
struct efx_self_tests *tests, unsigned int loopback_modes)
|
||||
{
|
||||
struct efx_selftest_state *state;
|
||||
int rc;
|
||||
enum efx_loopback_mode loopback_mode = efx->loopback_mode;
|
||||
int phy_mode = efx->phy_mode;
|
||||
struct ethtool_cmd ecmd, ecmd_test;
|
||||
int rc, rc2 = 0;
|
||||
|
||||
/* Create a selftest_state structure to hold state for the test */
|
||||
state = kzalloc(sizeof(*state), GFP_KERNEL);
|
||||
if (state == NULL)
|
||||
return -ENOMEM;
|
||||
/* force the carrier state off so the kernel doesn't transmit during
|
||||
* the loopback test, and the watchdog timeout doesn't fire. Also put
|
||||
* falcon into loopback for the register test.
|
||||
*/
|
||||
mutex_lock(&efx->mac_lock);
|
||||
efx->port_inhibited = true;
|
||||
if (efx->loopback_modes)
|
||||
efx->loopback_mode = __ffs(efx->loopback_modes);
|
||||
__efx_reconfigure_port(efx);
|
||||
mutex_unlock(&efx->mac_lock);
|
||||
|
||||
/* 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 */
|
||||
BUG_ON(efx->loopback_selftest);
|
||||
state->flush = true;
|
||||
efx->loopback_selftest = state;
|
||||
/* free up all consumers of SRAM (including all the queues) */
|
||||
efx_reset_down(efx, &ecmd);
|
||||
|
||||
rc = efx_test_loopbacks(efx, tests, loopback_modes);
|
||||
rc = efx_test_chip(efx, tests);
|
||||
if (rc && !rc2)
|
||||
rc2 = rc;
|
||||
|
||||
efx->loopback_selftest = NULL;
|
||||
wmb();
|
||||
kfree(state);
|
||||
/* reset the chip to recover from the register test */
|
||||
rc = falcon_reset_hw(efx, RESET_TYPE_ALL);
|
||||
|
||||
return rc;
|
||||
/* Modify the saved ecmd so that when efx_reset_up() restores the phy
|
||||
* state, AN is disabled, and the phy is powered, and out of loopback */
|
||||
memcpy(&ecmd_test, &ecmd, sizeof(ecmd_test));
|
||||
if (ecmd_test.autoneg == AUTONEG_ENABLE) {
|
||||
ecmd_test.autoneg = AUTONEG_DISABLE;
|
||||
ecmd_test.duplex = DUPLEX_FULL;
|
||||
ecmd_test.speed = SPEED_10000;
|
||||
}
|
||||
efx->loopback_mode = LOOPBACK_NONE;
|
||||
|
||||
rc = efx_reset_up(efx, &ecmd_test, rc == 0);
|
||||
if (rc) {
|
||||
EFX_ERR(efx, "Unable to recover from chip test\n");
|
||||
efx_schedule_reset(efx, RESET_TYPE_DISABLE);
|
||||
return rc;
|
||||
}
|
||||
|
||||
tests->loopback_speed = ecmd_test.speed;
|
||||
tests->loopback_full_duplex = ecmd_test.duplex;
|
||||
|
||||
rc = efx_test_phy(efx, tests);
|
||||
if (rc && !rc2)
|
||||
rc2 = rc;
|
||||
|
||||
rc = efx_test_loopbacks(efx, ecmd_test, tests, loopback_modes);
|
||||
if (rc && !rc2)
|
||||
rc2 = rc;
|
||||
|
||||
/* restore the PHY to the previous state */
|
||||
efx->loopback_mode = loopback_mode;
|
||||
efx->phy_mode = phy_mode;
|
||||
efx->port_inhibited = false;
|
||||
efx_ethtool_set_settings(efx->net_dev, &ecmd);
|
||||
|
||||
return rc2;
|
||||
}
|
||||
|
||||
|
||||
@ -29,14 +29,19 @@ struct efx_loopback_self_tests {
|
||||
* indicates failure.
|
||||
*/
|
||||
struct efx_self_tests {
|
||||
/* online tests */
|
||||
int mii;
|
||||
int nvram;
|
||||
int interrupt;
|
||||
int eventq_dma[EFX_MAX_CHANNELS];
|
||||
int eventq_int[EFX_MAX_CHANNELS];
|
||||
int eventq_poll[EFX_MAX_CHANNELS];
|
||||
int phy_ok;
|
||||
/* offline tests */
|
||||
int registers;
|
||||
int phy;
|
||||
int loopback_speed;
|
||||
int loopback_full_duplex;
|
||||
struct efx_loopback_self_tests loopback[LOOPBACK_TEST_MAX];
|
||||
struct efx_loopback_self_tests loopback[LOOPBACK_TEST_MAX + 1];
|
||||
};
|
||||
|
||||
extern void efx_loopback_rx_packet(struct efx_nic *efx,
|
||||
|
||||
@ -65,25 +65,10 @@
|
||||
#define PMA_PMD_LED_DEFAULT (PMA_PMD_LED_OFF << PMA_PMD_LED_RX_LBN)
|
||||
|
||||
|
||||
/* Self test (BIST) control register */
|
||||
#define PMA_PMD_BIST_CTRL_REG (0xc014)
|
||||
#define PMA_PMD_BIST_BER_LBN (2) /* Run BER test */
|
||||
#define PMA_PMD_BIST_CONT_LBN (1) /* Run continuous BIST until cleared */
|
||||
#define PMA_PMD_BIST_SINGLE_LBN (0) /* Run 1 BIST iteration (self clears) */
|
||||
/* Self test status register */
|
||||
#define PMA_PMD_BIST_STAT_REG (0xc015)
|
||||
#define PMA_PMD_BIST_ENX_LBN (3)
|
||||
#define PMA_PMD_BIST_PMA_LBN (2)
|
||||
#define PMA_PMD_BIST_RXD_LBN (1)
|
||||
#define PMA_PMD_BIST_AFE_LBN (0)
|
||||
|
||||
/* Special Software reset register */
|
||||
#define PMA_PMD_EXT_CTRL_REG 49152
|
||||
#define PMA_PMD_EXT_SSR_LBN 15
|
||||
|
||||
#define BIST_MAX_DELAY (1000)
|
||||
#define BIST_POLL_DELAY (10)
|
||||
|
||||
/* Misc register defines */
|
||||
#define PCS_CLOCK_CTRL_REG 0xd801
|
||||
#define PLL312_RST_N_LBN 2
|
||||
@ -491,6 +476,12 @@ static void tenxpress_reset_xaui(struct efx_nic *efx)
|
||||
udelay(10);
|
||||
}
|
||||
|
||||
static int tenxpress_phy_test(struct efx_nic *efx)
|
||||
{
|
||||
/* BIST is automatically run after a special software reset */
|
||||
return tenxpress_special_reset(efx);
|
||||
}
|
||||
|
||||
struct efx_phy_operations falcon_tenxpress_phy_ops = {
|
||||
.init = tenxpress_phy_init,
|
||||
.reconfigure = tenxpress_phy_reconfigure,
|
||||
@ -498,6 +489,7 @@ struct efx_phy_operations falcon_tenxpress_phy_ops = {
|
||||
.fini = tenxpress_phy_fini,
|
||||
.clear_interrupt = tenxpress_phy_clear_interrupt,
|
||||
.reset_xaui = tenxpress_reset_xaui,
|
||||
.test = tenxpress_phy_test,
|
||||
.mmds = TENXPRESS_REQUIRED_DEVS,
|
||||
.loopbacks = TENXPRESS_LOOPBACKS,
|
||||
};
|
||||
|
||||
Loading…
Reference in New Issue
Block a user