/**************************************************************************** * 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 #include #include #include #include "net_driver.h" #include "workarounds.h" #include "selftest.h" #include "efx.h" #include "filter.h" #include "nic.h" struct ethtool_string { char name[ETH_GSTRING_LEN]; }; struct efx_ethtool_stat { const char *name; enum { EFX_ETHTOOL_STAT_SOURCE_mac_stats, EFX_ETHTOOL_STAT_SOURCE_nic, EFX_ETHTOOL_STAT_SOURCE_channel, EFX_ETHTOOL_STAT_SOURCE_tx_queue } source; unsigned offset; u64(*get_stat) (void *field); /* Reader function */ }; /* Initialiser for a struct #efx_ethtool_stat with type-checking */ #define EFX_ETHTOOL_STAT(stat_name, source_name, field, field_type, \ get_stat_function) { \ .name = #stat_name, \ .source = EFX_ETHTOOL_STAT_SOURCE_##source_name, \ .offset = ((((field_type *) 0) == \ &((struct efx_##source_name *)0)->field) ? \ offsetof(struct efx_##source_name, field) : \ offsetof(struct efx_##source_name, field)), \ .get_stat = get_stat_function, \ } static u64 efx_get_uint_stat(void *field) { return *(unsigned int *)field; } static u64 efx_get_u64_stat(void *field) { return *(u64 *) field; } static u64 efx_get_atomic_stat(void *field) { return atomic_read((atomic_t *) field); } #define EFX_ETHTOOL_U64_MAC_STAT(field) \ EFX_ETHTOOL_STAT(field, mac_stats, field, \ u64, efx_get_u64_stat) #define EFX_ETHTOOL_UINT_NIC_STAT(name) \ EFX_ETHTOOL_STAT(name, nic, n_##name, \ unsigned int, efx_get_uint_stat) #define EFX_ETHTOOL_ATOMIC_NIC_ERROR_STAT(field) \ EFX_ETHTOOL_STAT(field, nic, field, \ atomic_t, efx_get_atomic_stat) #define EFX_ETHTOOL_UINT_CHANNEL_STAT(field) \ EFX_ETHTOOL_STAT(field, channel, n_##field, \ unsigned int, efx_get_uint_stat) #define EFX_ETHTOOL_UINT_TXQ_STAT(field) \ EFX_ETHTOOL_STAT(tx_##field, tx_queue, field, \ unsigned int, efx_get_uint_stat) static const struct efx_ethtool_stat efx_ethtool_stats[] = { EFX_ETHTOOL_U64_MAC_STAT(tx_bytes), EFX_ETHTOOL_U64_MAC_STAT(tx_good_bytes), EFX_ETHTOOL_U64_MAC_STAT(tx_bad_bytes), EFX_ETHTOOL_U64_MAC_STAT(tx_packets), EFX_ETHTOOL_U64_MAC_STAT(tx_bad), EFX_ETHTOOL_U64_MAC_STAT(tx_pause), EFX_ETHTOOL_U64_MAC_STAT(tx_control), EFX_ETHTOOL_U64_MAC_STAT(tx_unicast), EFX_ETHTOOL_U64_MAC_STAT(tx_multicast), EFX_ETHTOOL_U64_MAC_STAT(tx_broadcast), EFX_ETHTOOL_U64_MAC_STAT(tx_lt64), EFX_ETHTOOL_U64_MAC_STAT(tx_64), EFX_ETHTOOL_U64_MAC_STAT(tx_65_to_127), EFX_ETHTOOL_U64_MAC_STAT(tx_128_to_255), EFX_ETHTOOL_U64_MAC_STAT(tx_256_to_511), EFX_ETHTOOL_U64_MAC_STAT(tx_512_to_1023), EFX_ETHTOOL_U64_MAC_STAT(tx_1024_to_15xx), EFX_ETHTOOL_U64_MAC_STAT(tx_15xx_to_jumbo), EFX_ETHTOOL_U64_MAC_STAT(tx_gtjumbo), EFX_ETHTOOL_U64_MAC_STAT(tx_collision), EFX_ETHTOOL_U64_MAC_STAT(tx_single_collision), EFX_ETHTOOL_U64_MAC_STAT(tx_multiple_collision), EFX_ETHTOOL_U64_MAC_STAT(tx_excessive_collision), EFX_ETHTOOL_U64_MAC_STAT(tx_deferred), EFX_ETHTOOL_U64_MAC_STAT(tx_late_collision), EFX_ETHTOOL_U64_MAC_STAT(tx_excessive_deferred), EFX_ETHTOOL_U64_MAC_STAT(tx_non_tcpudp), EFX_ETHTOOL_U64_MAC_STAT(tx_mac_src_error), EFX_ETHTOOL_U64_MAC_STAT(tx_ip_src_error), EFX_ETHTOOL_UINT_TXQ_STAT(tso_bursts), EFX_ETHTOOL_UINT_TXQ_STAT(tso_long_headers), EFX_ETHTOOL_UINT_TXQ_STAT(tso_packets), EFX_ETHTOOL_UINT_TXQ_STAT(pushes), EFX_ETHTOOL_U64_MAC_STAT(rx_bytes), EFX_ETHTOOL_U64_MAC_STAT(rx_good_bytes), EFX_ETHTOOL_U64_MAC_STAT(rx_bad_bytes), EFX_ETHTOOL_U64_MAC_STAT(rx_packets), EFX_ETHTOOL_U64_MAC_STAT(rx_good), EFX_ETHTOOL_U64_MAC_STAT(rx_bad), EFX_ETHTOOL_U64_MAC_STAT(rx_pause), EFX_ETHTOOL_U64_MAC_STAT(rx_control), EFX_ETHTOOL_U64_MAC_STAT(rx_unicast), EFX_ETHTOOL_U64_MAC_STAT(rx_multicast), EFX_ETHTOOL_U64_MAC_STAT(rx_broadcast), EFX_ETHTOOL_U64_MAC_STAT(rx_lt64), EFX_ETHTOOL_U64_MAC_STAT(rx_64), EFX_ETHTOOL_U64_MAC_STAT(rx_65_to_127), EFX_ETHTOOL_U64_MAC_STAT(rx_128_to_255), EFX_ETHTOOL_U64_MAC_STAT(rx_256_to_511), EFX_ETHTOOL_U64_MAC_STAT(rx_512_to_1023), EFX_ETHTOOL_U64_MAC_STAT(rx_1024_to_15xx), EFX_ETHTOOL_U64_MAC_STAT(rx_15xx_to_jumbo), EFX_ETHTOOL_U64_MAC_STAT(rx_gtjumbo), EFX_ETHTOOL_U64_MAC_STAT(rx_bad_lt64), EFX_ETHTOOL_U64_MAC_STAT(rx_bad_64_to_15xx), EFX_ETHTOOL_U64_MAC_STAT(rx_bad_15xx_to_jumbo), EFX_ETHTOOL_U64_MAC_STAT(rx_bad_gtjumbo), EFX_ETHTOOL_U64_MAC_STAT(rx_overflow), EFX_ETHTOOL_U64_MAC_STAT(rx_missed), EFX_ETHTOOL_U64_MAC_STAT(rx_false_carrier), EFX_ETHTOOL_U64_MAC_STAT(rx_symbol_error), EFX_ETHTOOL_U64_MAC_STAT(rx_align_error), EFX_ETHTOOL_U64_MAC_STAT(rx_length_error), EFX_ETHTOOL_U64_MAC_STAT(rx_internal_error), EFX_ETHTOOL_UINT_NIC_STAT(rx_nodesc_drop_cnt), EFX_ETHTOOL_ATOMIC_NIC_ERROR_STAT(rx_reset), EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_tobe_disc), EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_ip_hdr_chksum_err), EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_tcp_udp_chksum_err), EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_mcast_mismatch), EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_frm_trunc), }; /* Number of ethtool statistics */ #define EFX_ETHTOOL_NUM_STATS ARRAY_SIZE(efx_ethtool_stats) #define EFX_ETHTOOL_EEPROM_MAGIC 0xEFAB /************************************************************************** * * Ethtool operations * ************************************************************************** */ /* Identify device by flashing LEDs */ static int efx_ethtool_phys_id(struct net_device *net_dev, enum ethtool_phys_id_state state) { struct efx_nic *efx = netdev_priv(net_dev); enum efx_led_mode mode = EFX_LED_DEFAULT; switch (state) { case ETHTOOL_ID_ON: mode = EFX_LED_ON; break; case ETHTOOL_ID_OFF: mode = EFX_LED_OFF; break; case ETHTOOL_ID_INACTIVE: mode = EFX_LED_DEFAULT; break; case ETHTOOL_ID_ACTIVE: return 1; /* cycle on/off once per second */ } efx->type->set_id_led(efx, mode); return 0; } /* This must be called with rtnl_lock held. */ static int efx_ethtool_get_settings(struct net_device *net_dev, struct ethtool_cmd *ecmd) { struct efx_nic *efx = netdev_priv(net_dev); struct efx_link_state *link_state = &efx->link_state; mutex_lock(&efx->mac_lock); efx->phy_op->get_settings(efx, ecmd); mutex_unlock(&efx->mac_lock); /* GMAC does not support 1000Mbps HD */ ecmd->supported &= ~SUPPORTED_1000baseT_Half; /* Both MACs support pause frames (bidirectional and respond-only) */ ecmd->supported |= SUPPORTED_Pause | SUPPORTED_Asym_Pause; if (LOOPBACK_INTERNAL(efx)) { ethtool_cmd_speed_set(ecmd, link_state->speed); ecmd->duplex = link_state->fd ? DUPLEX_FULL : DUPLEX_HALF; } return 0; } /* This must be called with rtnl_lock held. */ static int efx_ethtool_set_settings(struct net_device *net_dev, struct ethtool_cmd *ecmd) { struct efx_nic *efx = netdev_priv(net_dev); int rc; /* GMAC does not support 1000Mbps HD */ if ((ethtool_cmd_speed(ecmd) == SPEED_1000) && (ecmd->duplex != DUPLEX_FULL)) { netif_dbg(efx, drv, efx->net_dev, "rejecting unsupported 1000Mbps HD setting\n"); return -EINVAL; } mutex_lock(&efx->mac_lock); rc = efx->phy_op->set_settings(efx, ecmd); mutex_unlock(&efx->mac_lock); return rc; } static void efx_ethtool_get_drvinfo(struct net_device *net_dev, struct ethtool_drvinfo *info) { struct efx_nic *efx = netdev_priv(net_dev); strlcpy(info->driver, KBUILD_MODNAME, sizeof(info->driver)); strlcpy(info->version, EFX_DRIVER_VERSION, sizeof(info->version)); if (efx_nic_rev(efx) >= EFX_REV_SIENA_A0) efx_mcdi_print_fwver(efx, info->fw_version, sizeof(info->fw_version)); strlcpy(info->bus_info, pci_name(efx->pci_dev), sizeof(info->bus_info)); } static int efx_ethtool_get_regs_len(struct net_device *net_dev) { return efx_nic_get_regs_len(netdev_priv(net_dev)); } static void efx_ethtool_get_regs(struct net_device *net_dev, struct ethtool_regs *regs, void *buf) { struct efx_nic *efx = netdev_priv(net_dev); regs->version = efx->type->revision; efx_nic_get_regs(efx, buf); } static u32 efx_ethtool_get_msglevel(struct net_device *net_dev) { struct efx_nic *efx = netdev_priv(net_dev); return efx->msg_enable; } static void efx_ethtool_set_msglevel(struct net_device *net_dev, u32 msg_enable) { struct efx_nic *efx = netdev_priv(net_dev); efx->msg_enable = msg_enable; } /** * efx_fill_test - fill in an individual self-test entry * @test_index: Index of the test * @strings: Ethtool strings, or %NULL * @data: Ethtool test results, or %NULL * @test: Pointer to test result (used only if data != %NULL) * @unit_format: Unit name format (e.g. "chan\%d") * @unit_id: Unit id (e.g. 0 for "chan0") * @test_format: Test name format (e.g. "loopback.\%s.tx.sent") * @test_id: Test id (e.g. "PHYXS" for "loopback.PHYXS.tx_sent") * * Fill in an individual self-test entry. */ static void efx_fill_test(unsigned int test_index, struct ethtool_string *strings, u64 *data, int *test, const char *unit_format, int unit_id, const char *test_format, const char *test_id) { struct ethtool_string unit_str, test_str; /* Fill data value, if applicable */ if (data) data[test_index] = *test; /* Fill string, if applicable */ if (strings) { if (strchr(unit_format, '%')) snprintf(unit_str.name, sizeof(unit_str.name), unit_format, unit_id); else strcpy(unit_str.name, unit_format); snprintf(test_str.name, sizeof(test_str.name), test_format, test_id); snprintf(strings[test_index].name, sizeof(strings[test_index].name), "%-6s %-24s", unit_str.name, test_str.name); } } #define EFX_CHANNEL_NAME(_channel) "chan%d", _channel->channel #define EFX_TX_QUEUE_NAME(_tx_queue) "txq%d", _tx_queue->queue #define EFX_RX_QUEUE_NAME(_rx_queue) "rxq%d", _rx_queue->queue #define EFX_LOOPBACK_NAME(_mode, _counter) \ "loopback.%s." _counter, STRING_TABLE_LOOKUP(_mode, efx_loopback_mode) /** * efx_fill_loopback_test - fill in a block of loopback self-test entries * @efx: Efx NIC * @lb_tests: Efx loopback self-test results structure * @mode: Loopback test mode * @test_index: Starting index of the test * @strings: Ethtool strings, or %NULL * @data: Ethtool test results, or %NULL */ static int efx_fill_loopback_test(struct efx_nic *efx, struct efx_loopback_self_tests *lb_tests, enum efx_loopback_mode mode, unsigned int test_index, struct ethtool_string *strings, u64 *data) { struct efx_channel *channel = efx_get_channel(efx, 0); struct efx_tx_queue *tx_queue; efx_for_each_channel_tx_queue(tx_queue, channel) { efx_fill_test(test_index++, strings, data, &lb_tests->tx_sent[tx_queue->queue], EFX_TX_QUEUE_NAME(tx_queue), EFX_LOOPBACK_NAME(mode, "tx_sent")); efx_fill_test(test_index++, strings, data, &lb_tests->tx_done[tx_queue->queue], EFX_TX_QUEUE_NAME(tx_queue), EFX_LOOPBACK_NAME(mode, "tx_done")); } efx_fill_test(test_index++, strings, data, &lb_tests->rx_good, "rx", 0, EFX_LOOPBACK_NAME(mode, "rx_good")); efx_fill_test(test_index++, strings, data, &lb_tests->rx_bad, "rx", 0, EFX_LOOPBACK_NAME(mode, "rx_bad")); return test_index; } /** * efx_ethtool_fill_self_tests - get self-test details * @efx: Efx NIC * @tests: Efx self-test results structure, or %NULL * @strings: Ethtool strings, or %NULL * @data: Ethtool test results, or %NULL */ static int efx_ethtool_fill_self_tests(struct efx_nic *efx, struct efx_self_tests *tests, struct ethtool_string *strings, u64 *data) { struct efx_channel *channel; unsigned int n = 0, i; enum efx_loopback_mode mode; efx_fill_test(n++, strings, data, &tests->phy_alive, "phy", 0, "alive", NULL); efx_fill_test(n++, strings, data, &tests->nvram, "core", 0, "nvram", NULL); efx_fill_test(n++, strings, data, &tests->interrupt, "core", 0, "interrupt", NULL); /* Event queues */ efx_for_each_channel(channel, efx) { efx_fill_test(n++, strings, data, &tests->eventq_dma[channel->channel], EFX_CHANNEL_NAME(channel), "eventq.dma", NULL); efx_fill_test(n++, strings, data, &tests->eventq_int[channel->channel], EFX_CHANNEL_NAME(channel), "eventq.int", NULL); } efx_fill_test(n++, strings, data, &tests->registers, "core", 0, "registers", NULL); if (efx->phy_op->run_tests != NULL) { EFX_BUG_ON_PARANOID(efx->phy_op->test_name == NULL); for (i = 0; true; ++i) { const char *name; EFX_BUG_ON_PARANOID(i >= EFX_MAX_PHY_TESTS); name = efx->phy_op->test_name(efx, i); if (name == NULL) break; efx_fill_test(n++, strings, data, &tests->phy_ext[i], "phy", 0, name, NULL); } } /* Loopback tests */ for (mode = LOOPBACK_NONE; mode <= LOOPBACK_TEST_MAX; mode++) { if (!(efx->loopback_modes & (1 << mode))) continue; n = efx_fill_loopback_test(efx, &tests->loopback[mode], mode, n, strings, data); } return n; } static int efx_ethtool_get_sset_count(struct net_device *net_dev, int string_set) { switch (string_set) { case ETH_SS_STATS: return EFX_ETHTOOL_NUM_STATS; case ETH_SS_TEST: return efx_ethtool_fill_self_tests(netdev_priv(net_dev), NULL, NULL, NULL); default: return -EINVAL; } } static void efx_ethtool_get_strings(struct net_device *net_dev, u32 string_set, u8 *strings) { struct efx_nic *efx = netdev_priv(net_dev); struct ethtool_string *ethtool_strings = (struct ethtool_string *)strings; int i; switch (string_set) { case ETH_SS_STATS: for (i = 0; i < EFX_ETHTOOL_NUM_STATS; i++) strlcpy(ethtool_strings[i].name, efx_ethtool_stats[i].name, sizeof(ethtool_strings[i].name)); break; case ETH_SS_TEST: efx_ethtool_fill_self_tests(efx, NULL, ethtool_strings, NULL); break; default: /* No other string sets */ break; } } static void efx_ethtool_get_stats(struct net_device *net_dev, struct ethtool_stats *stats, u64 *data) { struct efx_nic *efx = netdev_priv(net_dev); struct efx_mac_stats *mac_stats = &efx->mac_stats; const struct efx_ethtool_stat *stat; struct efx_channel *channel; struct efx_tx_queue *tx_queue; int i; EFX_BUG_ON_PARANOID(stats->n_stats != EFX_ETHTOOL_NUM_STATS); spin_lock_bh(&efx->stats_lock); /* Update MAC and NIC statistics */ efx->type->update_stats(efx); /* Fill detailed statistics buffer */ for (i = 0; i < EFX_ETHTOOL_NUM_STATS; i++) { stat = &efx_ethtool_stats[i]; switch (stat->source) { case EFX_ETHTOOL_STAT_SOURCE_mac_stats: data[i] = stat->get_stat((void *)mac_stats + stat->offset); break; case EFX_ETHTOOL_STAT_SOURCE_nic: data[i] = stat->get_stat((void *)efx + stat->offset); break; case EFX_ETHTOOL_STAT_SOURCE_channel: data[i] = 0; efx_for_each_channel(channel, efx) data[i] += stat->get_stat((void *)channel + stat->offset); break; case EFX_ETHTOOL_STAT_SOURCE_tx_queue: data[i] = 0; efx_for_each_channel(channel, efx) { efx_for_each_channel_tx_queue(tx_queue, channel) data[i] += stat->get_stat((void *)tx_queue + stat->offset); } break; } } spin_unlock_bh(&efx->stats_lock); } static void efx_ethtool_self_test(struct net_device *net_dev, struct ethtool_test *test, u64 *data) { struct efx_nic *efx = netdev_priv(net_dev); struct efx_self_tests *efx_tests; int already_up; int rc = -ENOMEM; efx_tests = kzalloc(sizeof(*efx_tests), GFP_KERNEL); if (!efx_tests) goto fail; if (efx->state != STATE_READY) { rc = -EIO; goto fail1; } netif_info(efx, drv, efx->net_dev, "starting %sline testing\n", (test->flags & ETH_TEST_FL_OFFLINE) ? "off" : "on"); /* We need rx buffers and interrupts. */ already_up = (efx->net_dev->flags & IFF_UP); if (!already_up) { rc = dev_open(efx->net_dev); if (rc) { netif_err(efx, drv, efx->net_dev, "failed opening device.\n"); goto fail1; } } rc = efx_selftest(efx, efx_tests, test->flags); if (!already_up) dev_close(efx->net_dev); netif_info(efx, drv, efx->net_dev, "%s %sline self-tests\n", rc == 0 ? "passed" : "failed", (test->flags & ETH_TEST_FL_OFFLINE) ? "off" : "on"); fail1: /* Fill ethtool results structures */ efx_ethtool_fill_self_tests(efx, efx_tests, NULL, data); kfree(efx_tests); fail: if (rc) test->flags |= ETH_TEST_FL_FAILED; } /* Restart autonegotiation */ static int efx_ethtool_nway_reset(struct net_device *net_dev) { struct efx_nic *efx = netdev_priv(net_dev); return mdio45_nway_restart(&efx->mdio); } /* * Each channel has a single IRQ and moderation timer, started by any * completion (or other event). Unless the module parameter * separate_tx_channels is set, IRQs and moderation are therefore * shared between RX and TX completions. In this case, when RX IRQ * moderation is explicitly changed then TX IRQ moderation is * automatically changed too, but otherwise we fail if the two values * are requested to be different. * * The hardware does not support a limit on the number of completions * before an IRQ, so we do not use the max_frames fields. We should * report and require that max_frames == (usecs != 0), but this would * invalidate existing user documentation. * * The hardware does not have distinct settings for interrupt * moderation while the previous IRQ is being handled, so we should * not use the 'irq' fields. However, an earlier developer * misunderstood the meaning of the 'irq' fields and the driver did * not support the standard fields. To avoid invalidating existing * user documentation, we report and accept changes through either the * standard or 'irq' fields. If both are changed at the same time, we * prefer the standard field. * * We implement adaptive IRQ moderation, but use a different algorithm * from that assumed in the definition of struct ethtool_coalesce. * Therefore we do not use any of the adaptive moderation parameters * in it. */ static int efx_ethtool_get_coalesce(struct net_device *net_dev, struct ethtool_coalesce *coalesce) { struct efx_nic *efx = netdev_priv(net_dev); unsigned int tx_usecs, rx_usecs; bool rx_adaptive; efx_get_irq_moderation(efx, &tx_usecs, &rx_usecs, &rx_adaptive); coalesce->tx_coalesce_usecs = tx_usecs; coalesce->tx_coalesce_usecs_irq = tx_usecs; coalesce->rx_coalesce_usecs = rx_usecs; coalesce->rx_coalesce_usecs_irq = rx_usecs; coalesce->use_adaptive_rx_coalesce = rx_adaptive; return 0; } static int efx_ethtool_set_coalesce(struct net_device *net_dev, struct ethtool_coalesce *coalesce) { struct efx_nic *efx = netdev_priv(net_dev); struct efx_channel *channel; unsigned int tx_usecs, rx_usecs; bool adaptive, rx_may_override_tx; int rc; if (coalesce->use_adaptive_tx_coalesce) return -EINVAL; efx_get_irq_moderation(efx, &tx_usecs, &rx_usecs, &adaptive); if (coalesce->rx_coalesce_usecs != rx_usecs) rx_usecs = coalesce->rx_coalesce_usecs; else rx_usecs = coalesce->rx_coalesce_usecs_irq; adaptive = coalesce->use_adaptive_rx_coalesce; /* If channels are shared, TX IRQ moderation can be quietly * overridden unless it is changed from its old value. */ rx_may_override_tx = (coalesce->tx_coalesce_usecs == tx_usecs && coalesce->tx_coalesce_usecs_irq == tx_usecs); if (coalesce->tx_coalesce_usecs != tx_usecs) tx_usecs = coalesce->tx_coalesce_usecs; else tx_usecs = coalesce->tx_coalesce_usecs_irq; rc = efx_init_irq_moderation(efx, tx_usecs, rx_usecs, adaptive, rx_may_override_tx); if (rc != 0) return rc; efx_for_each_channel(channel, efx) efx->type->push_irq_moderation(channel); return 0; } static void efx_ethtool_get_ringparam(struct net_device *net_dev, struct ethtool_ringparam *ring) { struct efx_nic *efx = netdev_priv(net_dev); ring->rx_max_pending = EFX_MAX_DMAQ_SIZE; ring->tx_max_pending = EFX_MAX_DMAQ_SIZE; ring->rx_pending = efx->rxq_entries; ring->tx_pending = efx->txq_entries; } static int efx_ethtool_set_ringparam(struct net_device *net_dev, struct ethtool_ringparam *ring) { struct efx_nic *efx = netdev_priv(net_dev); u32 txq_entries; if (ring->rx_mini_pending || ring->rx_jumbo_pending || ring->rx_pending > EFX_MAX_DMAQ_SIZE || ring->tx_pending > EFX_MAX_DMAQ_SIZE) return -EINVAL; if (ring->rx_pending < EFX_RXQ_MIN_ENT) { netif_err(efx, drv, efx->net_dev, "RX queues cannot be smaller than %u\n", EFX_RXQ_MIN_ENT); return -EINVAL; } txq_entries = max(ring->tx_pending, EFX_TXQ_MIN_ENT(efx)); if (txq_entries != ring->tx_pending) netif_warn(efx, drv, efx->net_dev, "increasing TX queue size to minimum of %u\n", txq_entries); return efx_realloc_channels(efx, ring->rx_pending, txq_entries); } static int efx_ethtool_set_pauseparam(struct net_device *net_dev, struct ethtool_pauseparam *pause) { struct efx_nic *efx = netdev_priv(net_dev); u8 wanted_fc, old_fc; u32 old_adv; bool reset; int rc = 0; mutex_lock(&efx->mac_lock); wanted_fc = ((pause->rx_pause ? EFX_FC_RX : 0) | (pause->tx_pause ? EFX_FC_TX : 0) | (pause->autoneg ? EFX_FC_AUTO : 0)); if ((wanted_fc & EFX_FC_TX) && !(wanted_fc & EFX_FC_RX)) { netif_dbg(efx, drv, efx->net_dev, "Flow control unsupported: tx ON rx OFF\n"); rc = -EINVAL; goto out; } if ((wanted_fc & EFX_FC_AUTO) && !efx->link_advertising) { netif_dbg(efx, drv, efx->net_dev, "Autonegotiation is disabled\n"); rc = -EINVAL; goto out; } /* TX flow control may automatically turn itself off if the * link partner (intermittently) stops responding to pause * frames. There isn't any indication that this has happened, * so the best we do is leave it up to the user to spot this * and fix it be cycling transmit flow control on this end. */ reset = (wanted_fc & EFX_FC_TX) && !(efx->wanted_fc & EFX_FC_TX); if (EFX_WORKAROUND_11482(efx) && reset) { if (efx_nic_rev(efx) == EFX_REV_FALCON_B0) { /* Recover by resetting the EM block */ falcon_stop_nic_stats(efx); falcon_drain_tx_fifo(efx); falcon_reconfigure_xmac(efx); falcon_start_nic_stats(efx); } else { /* Schedule a reset to recover */ efx_schedule_reset(efx, RESET_TYPE_INVISIBLE); } } old_adv = efx->link_advertising; old_fc = efx->wanted_fc; efx_link_set_wanted_fc(efx, wanted_fc); if (efx->link_advertising != old_adv || (efx->wanted_fc ^ old_fc) & EFX_FC_AUTO) { rc = efx->phy_op->reconfigure(efx); if (rc) { netif_err(efx, drv, efx->net_dev, "Unable to advertise requested flow " "control setting\n"); goto out; } } /* Reconfigure the MAC. The PHY *may* generate a link state change event * if the user just changed the advertised capabilities, but there's no * harm doing this twice */ efx->type->reconfigure_mac(efx); out: mutex_unlock(&efx->mac_lock); return rc; } static void efx_ethtool_get_pauseparam(struct net_device *net_dev, struct ethtool_pauseparam *pause) { struct efx_nic *efx = netdev_priv(net_dev); pause->rx_pause = !!(efx->wanted_fc & EFX_FC_RX); pause->tx_pause = !!(efx->wanted_fc & EFX_FC_TX); pause->autoneg = !!(efx->wanted_fc & EFX_FC_AUTO); } static void efx_ethtool_get_wol(struct net_device *net_dev, struct ethtool_wolinfo *wol) { struct efx_nic *efx = netdev_priv(net_dev); return efx->type->get_wol(efx, wol); } static int efx_ethtool_set_wol(struct net_device *net_dev, struct ethtool_wolinfo *wol) { struct efx_nic *efx = netdev_priv(net_dev); return efx->type->set_wol(efx, wol->wolopts); } static int efx_ethtool_reset(struct net_device *net_dev, u32 *flags) { struct efx_nic *efx = netdev_priv(net_dev); int rc; rc = efx->type->map_reset_flags(flags); if (rc < 0) return rc; return efx_reset(efx, rc); } /* MAC address mask including only MC flag */ static const u8 mac_addr_mc_mask[ETH_ALEN] = { 0x01, 0, 0, 0, 0, 0 }; static int efx_ethtool_get_class_rule(struct efx_nic *efx, struct ethtool_rx_flow_spec *rule) { struct ethtool_tcpip4_spec *ip_entry = &rule->h_u.tcp_ip4_spec; struct ethtool_tcpip4_spec *ip_mask = &rule->m_u.tcp_ip4_spec; struct ethhdr *mac_entry = &rule->h_u.ether_spec; struct ethhdr *mac_mask = &rule->m_u.ether_spec; struct efx_filter_spec spec; u16 vid; u8 proto; int rc; rc = efx_filter_get_filter_safe(efx, EFX_FILTER_PRI_MANUAL, rule->location, &spec); if (rc) return rc; if (spec.dmaq_id == 0xfff) rule->ring_cookie = RX_CLS_FLOW_DISC; else rule->ring_cookie = spec.dmaq_id; if (spec.type == EFX_FILTER_MC_DEF || spec.type == EFX_FILTER_UC_DEF) { rule->flow_type = ETHER_FLOW; memcpy(mac_mask->h_dest, mac_addr_mc_mask, ETH_ALEN); if (spec.type == EFX_FILTER_MC_DEF) memcpy(mac_entry->h_dest, mac_addr_mc_mask, ETH_ALEN); return 0; } rc = efx_filter_get_eth_local(&spec, &vid, mac_entry->h_dest); if (rc == 0) { rule->flow_type = ETHER_FLOW; memset(mac_mask->h_dest, ~0, ETH_ALEN); if (vid != EFX_FILTER_VID_UNSPEC) { rule->flow_type |= FLOW_EXT; rule->h_ext.vlan_tci = htons(vid); rule->m_ext.vlan_tci = htons(0xfff); } return 0; } rc = efx_filter_get_ipv4_local(&spec, &proto, &ip_entry->ip4dst, &ip_entry->pdst); if (rc != 0) { rc = efx_filter_get_ipv4_full( &spec, &proto, &ip_entry->ip4dst, &ip_entry->pdst, &ip_entry->ip4src, &ip_entry->psrc); EFX_WARN_ON_PARANOID(rc); ip_mask->ip4src = ~0; ip_mask->psrc = ~0; } rule->flow_type = (proto == IPPROTO_TCP) ? TCP_V4_FLOW : UDP_V4_FLOW; ip_mask->ip4dst = ~0; ip_mask->pdst = ~0; return rc; } static int efx_ethtool_get_rxnfc(struct net_device *net_dev, struct ethtool_rxnfc *info, u32 *rule_locs) { struct efx_nic *efx = netdev_priv(net_dev); switch (info->cmd) { case ETHTOOL_GRXRINGS: info->data = efx->n_rx_channels; return 0; case ETHTOOL_GRXFH: { unsigned min_revision = 0; info->data = 0; switch (info->flow_type) { case TCP_V4_FLOW: info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3; /* fall through */ case UDP_V4_FLOW: case SCTP_V4_FLOW: case AH_ESP_V4_FLOW: case IPV4_FLOW: info->data |= RXH_IP_SRC | RXH_IP_DST; min_revision = EFX_REV_FALCON_B0; break; case TCP_V6_FLOW: info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3; /* fall through */ case UDP_V6_FLOW: case SCTP_V6_FLOW: case AH_ESP_V6_FLOW: case IPV6_FLOW: info->data |= RXH_IP_SRC | RXH_IP_DST; min_revision = EFX_REV_SIENA_A0; break; default: break; } if (efx_nic_rev(efx) < min_revision) info->data = 0; return 0; } case ETHTOOL_GRXCLSRLCNT: info->data = efx_filter_get_rx_id_limit(efx); if (info->data == 0) return -EOPNOTSUPP; info->data |= RX_CLS_LOC_SPECIAL; info->rule_cnt = efx_filter_count_rx_used(efx, EFX_FILTER_PRI_MANUAL); return 0; case ETHTOOL_GRXCLSRULE: if (efx_filter_get_rx_id_limit(efx) == 0) return -EOPNOTSUPP; return efx_ethtool_get_class_rule(efx, &info->fs); case ETHTOOL_GRXCLSRLALL: { s32 rc; info->data = efx_filter_get_rx_id_limit(efx); if (info->data == 0) return -EOPNOTSUPP; rc = efx_filter_get_rx_ids(efx, EFX_FILTER_PRI_MANUAL, rule_locs, info->rule_cnt); if (rc < 0) return rc; info->rule_cnt = rc; return 0; } default: return -EOPNOTSUPP; } } static int efx_ethtool_set_class_rule(struct efx_nic *efx, struct ethtool_rx_flow_spec *rule) { struct ethtool_tcpip4_spec *ip_entry = &rule->h_u.tcp_ip4_spec; struct ethtool_tcpip4_spec *ip_mask = &rule->m_u.tcp_ip4_spec; struct ethhdr *mac_entry = &rule->h_u.ether_spec; struct ethhdr *mac_mask = &rule->m_u.ether_spec; struct efx_filter_spec spec; int rc; /* Check that user wants us to choose the location */ if (rule->location != RX_CLS_LOC_ANY && rule->location != RX_CLS_LOC_FIRST && rule->location != RX_CLS_LOC_LAST) return -EINVAL; /* Range-check ring_cookie */ if (rule->ring_cookie >= efx->n_rx_channels && rule->ring_cookie != RX_CLS_FLOW_DISC) return -EINVAL; /* Check for unsupported extensions */ if ((rule->flow_type & FLOW_EXT) && (rule->m_ext.vlan_etype | rule->m_ext.data[0] | rule->m_ext.data[1])) return -EINVAL; efx_filter_init_rx(&spec, EFX_FILTER_PRI_MANUAL, (rule->location == RX_CLS_LOC_FIRST) ? EFX_FILTER_FLAG_RX_OVERRIDE_IP : 0, (rule->ring_cookie == RX_CLS_FLOW_DISC) ? 0xfff : rule->ring_cookie); switch (rule->flow_type) { case TCP_V4_FLOW: case UDP_V4_FLOW: { u8 proto = (rule->flow_type == TCP_V4_FLOW ? IPPROTO_TCP : IPPROTO_UDP); /* Must match all of destination, */ if ((__force u32)~ip_mask->ip4dst | (__force u16)~ip_mask->pdst) return -EINVAL; /* all or none of source, */ if ((ip_mask->ip4src | ip_mask->psrc) && ((__force u32)~ip_mask->ip4src | (__force u16)~ip_mask->psrc)) return -EINVAL; /* and nothing else */ if (ip_mask->tos | rule->m_ext.vlan_tci) return -EINVAL; if (ip_mask->ip4src) rc = efx_filter_set_ipv4_full(&spec, proto, ip_entry->ip4dst, ip_entry->pdst, ip_entry->ip4src, ip_entry->psrc); else rc = efx_filter_set_ipv4_local(&spec, proto, ip_entry->ip4dst, ip_entry->pdst); if (rc) return rc; break; } case ETHER_FLOW | FLOW_EXT: case ETHER_FLOW: { u16 vlan_tag_mask = (rule->flow_type & FLOW_EXT ? ntohs(rule->m_ext.vlan_tci) : 0); /* Must not match on source address or Ethertype */ if (!is_zero_ether_addr(mac_mask->h_source) || mac_mask->h_proto) return -EINVAL; /* Is it a default UC or MC filter? */ if (ether_addr_equal(mac_mask->h_dest, mac_addr_mc_mask) && vlan_tag_mask == 0) { if (is_multicast_ether_addr(mac_entry->h_dest)) rc = efx_filter_set_mc_def(&spec); else rc = efx_filter_set_uc_def(&spec); } /* Otherwise, it must match all of destination and all * or none of VID. */ else if (is_broadcast_ether_addr(mac_mask->h_dest) && (vlan_tag_mask == 0xfff || vlan_tag_mask == 0)) { rc = efx_filter_set_eth_local( &spec, vlan_tag_mask ? ntohs(rule->h_ext.vlan_tci) : EFX_FILTER_VID_UNSPEC, mac_entry->h_dest); } else { rc = -EINVAL; } if (rc) return rc; break; } default: return -EINVAL; } rc = efx_filter_insert_filter(efx, &spec, true); if (rc < 0) return rc; rule->location = rc; return 0; } static int efx_ethtool_set_rxnfc(struct net_device *net_dev, struct ethtool_rxnfc *info) { struct efx_nic *efx = netdev_priv(net_dev); if (efx_filter_get_rx_id_limit(efx) == 0) return -EOPNOTSUPP; switch (info->cmd) { case ETHTOOL_SRXCLSRLINS: return efx_ethtool_set_class_rule(efx, &info->fs); case ETHTOOL_SRXCLSRLDEL: return efx_filter_remove_id_safe(efx, EFX_FILTER_PRI_MANUAL, info->fs.location); default: return -EOPNOTSUPP; } } static u32 efx_ethtool_get_rxfh_indir_size(struct net_device *net_dev) { struct efx_nic *efx = netdev_priv(net_dev); return ((efx_nic_rev(efx) < EFX_REV_FALCON_B0 || efx->n_rx_channels == 1) ? 0 : ARRAY_SIZE(efx->rx_indir_table)); } static int efx_ethtool_get_rxfh_indir(struct net_device *net_dev, u32 *indir) { struct efx_nic *efx = netdev_priv(net_dev); memcpy(indir, efx->rx_indir_table, sizeof(efx->rx_indir_table)); return 0; } static int efx_ethtool_set_rxfh_indir(struct net_device *net_dev, const u32 *indir) { struct efx_nic *efx = netdev_priv(net_dev); memcpy(efx->rx_indir_table, indir, sizeof(efx->rx_indir_table)); efx_nic_push_rx_indir_table(efx); return 0; } static int efx_ethtool_get_module_eeprom(struct net_device *net_dev, struct ethtool_eeprom *ee, u8 *data) { struct efx_nic *efx = netdev_priv(net_dev); int ret; if (!efx->phy_op || !efx->phy_op->get_module_eeprom) return -EOPNOTSUPP; mutex_lock(&efx->mac_lock); ret = efx->phy_op->get_module_eeprom(efx, ee, data); mutex_unlock(&efx->mac_lock); return ret; } static int efx_ethtool_get_module_info(struct net_device *net_dev, struct ethtool_modinfo *modinfo) { struct efx_nic *efx = netdev_priv(net_dev); int ret; if (!efx->phy_op || !efx->phy_op->get_module_info) return -EOPNOTSUPP; mutex_lock(&efx->mac_lock); ret = efx->phy_op->get_module_info(efx, modinfo); mutex_unlock(&efx->mac_lock); return ret; } const struct ethtool_ops efx_ethtool_ops = { .get_settings = efx_ethtool_get_settings, .set_settings = efx_ethtool_set_settings, .get_drvinfo = efx_ethtool_get_drvinfo, .get_regs_len = efx_ethtool_get_regs_len, .get_regs = efx_ethtool_get_regs, .get_msglevel = efx_ethtool_get_msglevel, .set_msglevel = efx_ethtool_set_msglevel, .nway_reset = efx_ethtool_nway_reset, .get_link = ethtool_op_get_link, .get_coalesce = efx_ethtool_get_coalesce, .set_coalesce = efx_ethtool_set_coalesce, .get_ringparam = efx_ethtool_get_ringparam, .set_ringparam = efx_ethtool_set_ringparam, .get_pauseparam = efx_ethtool_get_pauseparam, .set_pauseparam = efx_ethtool_set_pauseparam, .get_sset_count = efx_ethtool_get_sset_count, .self_test = efx_ethtool_self_test, .get_strings = efx_ethtool_get_strings, .set_phys_id = efx_ethtool_phys_id, .get_ethtool_stats = efx_ethtool_get_stats, .get_wol = efx_ethtool_get_wol, .set_wol = efx_ethtool_set_wol, .reset = efx_ethtool_reset, .get_rxnfc = efx_ethtool_get_rxnfc, .set_rxnfc = efx_ethtool_set_rxnfc, .get_rxfh_indir_size = efx_ethtool_get_rxfh_indir_size, .get_rxfh_indir = efx_ethtool_get_rxfh_indir, .set_rxfh_indir = efx_ethtool_set_rxfh_indir, .get_module_info = efx_ethtool_get_module_info, .get_module_eeprom = efx_ethtool_get_module_eeprom, };