| /**************************************************************************** |
| * Driver for Solarflare network controllers and boards |
| * Copyright 2005-2006 Fen Systems Ltd. |
| * Copyright 2006-2013 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/ethtool.h> |
| #include <linux/rtnetlink.h> |
| #include <linux/in.h> |
| #include "net_driver.h" |
| #include "workarounds.h" |
| #include "selftest.h" |
| #include "efx.h" |
| #include "filter.h" |
| #include "nic.h" |
| |
| struct efx_sw_stat_desc { |
| const char *name; |
| enum { |
| 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_sw_stat_desc 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_atomic_stat(void *field) |
| { |
| return atomic_read((atomic_t *) field); |
| } |
| |
| #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_sw_stat_desc efx_sw_stat_desc[] = { |
| EFX_ETHTOOL_UINT_TXQ_STAT(merge_events), |
| 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_UINT_TXQ_STAT(pio_packets), |
| 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), |
| EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_nodesc_trunc), |
| EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_merge_events), |
| EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_merge_packets), |
| }; |
| |
| #define EFX_ETHTOOL_SW_STAT_COUNT ARRAY_SIZE(efx_sw_stat_desc) |
| |
| #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); |
| |
| /* 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, u8 *strings, u64 *data, |
| int *test, const char *unit_format, int unit_id, |
| const char *test_format, const char *test_id) |
| { |
| char unit_str[ETH_GSTRING_LEN], test_str[ETH_GSTRING_LEN]; |
| |
| /* Fill data value, if applicable */ |
| if (data) |
| data[test_index] = *test; |
| |
| /* Fill string, if applicable */ |
| if (strings) { |
| if (strchr(unit_format, '%')) |
| snprintf(unit_str, sizeof(unit_str), |
| unit_format, unit_id); |
| else |
| strcpy(unit_str, unit_format); |
| snprintf(test_str, sizeof(test_str), test_format, test_id); |
| snprintf(strings + test_index * ETH_GSTRING_LEN, |
| ETH_GSTRING_LEN, |
| "%-6s %-24s", unit_str, test_str); |
| } |
| } |
| |
| #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, |
| u8 *strings, u64 *data) |
| { |
| struct efx_channel *channel = |
| efx_get_channel(efx, efx->tx_channel_offset); |
| 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, |
| u8 *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->memory, |
| "core", 0, "memory", 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) |
| { |
| struct efx_nic *efx = netdev_priv(net_dev); |
| |
| switch (string_set) { |
| case ETH_SS_STATS: |
| return efx->type->describe_stats(efx, NULL) + |
| EFX_ETHTOOL_SW_STAT_COUNT + |
| efx_ptp_describe_stats(efx, NULL); |
| case ETH_SS_TEST: |
| return efx_ethtool_fill_self_tests(efx, 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); |
| int i; |
| |
| switch (string_set) { |
| case ETH_SS_STATS: |
| strings += (efx->type->describe_stats(efx, strings) * |
| ETH_GSTRING_LEN); |
| for (i = 0; i < EFX_ETHTOOL_SW_STAT_COUNT; i++) |
| strlcpy(strings + i * ETH_GSTRING_LEN, |
| efx_sw_stat_desc[i].name, ETH_GSTRING_LEN); |
| strings += EFX_ETHTOOL_SW_STAT_COUNT * ETH_GSTRING_LEN; |
| efx_ptp_describe_stats(efx, strings); |
| break; |
| case ETH_SS_TEST: |
| efx_ethtool_fill_self_tests(efx, NULL, 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); |
| const struct efx_sw_stat_desc *stat; |
| struct efx_channel *channel; |
| struct efx_tx_queue *tx_queue; |
| int i; |
| |
| spin_lock_bh(&efx->stats_lock); |
| |
| /* Get NIC statistics */ |
| data += efx->type->update_stats(efx, data, NULL); |
| |
| /* Get software statistics */ |
| for (i = 0; i < EFX_ETHTOOL_SW_STAT_COUNT; i++) { |
| stat = &efx_sw_stat_desc[i]; |
| switch (stat->source) { |
| 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; |
| } |
| } |
| data += EFX_ETHTOOL_SW_STAT_COUNT; |
| |
| spin_unlock_bh(&efx->stats_lock); |
| |
| efx_ptp_update_stats(efx, data); |
| } |
| |
| 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_TXQ_MAX_ENT(efx); |
| 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_TXQ_MAX_ENT(efx)) |
| 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; |
| 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; |
| } |
| |
| /* Hook for Falcon bug 11482 workaround */ |
| if (efx->type->prepare_enable_fc_tx && |
| (wanted_fc & EFX_FC_TX) && !(efx->wanted_fc & EFX_FC_TX)) |
| efx->type->prepare_enable_fc_tx(efx); |
| |
| 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 I/G bit */ |
| static const u8 mac_addr_ig_mask[ETH_ALEN] = { 0x01, 0, 0, 0, 0, 0 }; |
| |
| #define IP4_ADDR_FULL_MASK ((__force __be32)~0) |
| #define PORT_FULL_MASK ((__force __be16)~0) |
| #define ETHER_TYPE_FULL_MASK ((__force __be16)~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; |
| int rc; |
| |
| rc = efx_filter_get_filter_safe(efx, EFX_FILTER_PRI_MANUAL, |
| rule->location, &spec); |
| if (rc) |
| return rc; |
| |
| if (spec.dmaq_id == EFX_FILTER_RX_DMAQ_ID_DROP) |
| rule->ring_cookie = RX_CLS_FLOW_DISC; |
| else |
| rule->ring_cookie = spec.dmaq_id; |
| |
| if ((spec.match_flags & EFX_FILTER_MATCH_ETHER_TYPE) && |
| spec.ether_type == htons(ETH_P_IP) && |
| (spec.match_flags & EFX_FILTER_MATCH_IP_PROTO) && |
| (spec.ip_proto == IPPROTO_TCP || spec.ip_proto == IPPROTO_UDP) && |
| !(spec.match_flags & |
| ~(EFX_FILTER_MATCH_ETHER_TYPE | EFX_FILTER_MATCH_OUTER_VID | |
| EFX_FILTER_MATCH_LOC_HOST | EFX_FILTER_MATCH_REM_HOST | |
| EFX_FILTER_MATCH_IP_PROTO | |
| EFX_FILTER_MATCH_LOC_PORT | EFX_FILTER_MATCH_REM_PORT))) { |
| rule->flow_type = ((spec.ip_proto == IPPROTO_TCP) ? |
| TCP_V4_FLOW : UDP_V4_FLOW); |
| if (spec.match_flags & EFX_FILTER_MATCH_LOC_HOST) { |
| ip_entry->ip4dst = spec.loc_host[0]; |
| ip_mask->ip4dst = IP4_ADDR_FULL_MASK; |
| } |
| if (spec.match_flags & EFX_FILTER_MATCH_REM_HOST) { |
| ip_entry->ip4src = spec.rem_host[0]; |
| ip_mask->ip4src = IP4_ADDR_FULL_MASK; |
| } |
| if (spec.match_flags & EFX_FILTER_MATCH_LOC_PORT) { |
| ip_entry->pdst = spec.loc_port; |
| ip_mask->pdst = PORT_FULL_MASK; |
| } |
| if (spec.match_flags & EFX_FILTER_MATCH_REM_PORT) { |
| ip_entry->psrc = spec.rem_port; |
| ip_mask->psrc = PORT_FULL_MASK; |
| } |
| } else if (!(spec.match_flags & |
| ~(EFX_FILTER_MATCH_LOC_MAC | EFX_FILTER_MATCH_LOC_MAC_IG | |
| EFX_FILTER_MATCH_REM_MAC | EFX_FILTER_MATCH_ETHER_TYPE | |
| EFX_FILTER_MATCH_OUTER_VID))) { |
| rule->flow_type = ETHER_FLOW; |
| if (spec.match_flags & |
| (EFX_FILTER_MATCH_LOC_MAC | EFX_FILTER_MATCH_LOC_MAC_IG)) { |
| memcpy(mac_entry->h_dest, spec.loc_mac, ETH_ALEN); |
| if (spec.match_flags & EFX_FILTER_MATCH_LOC_MAC) |
| memset(mac_mask->h_dest, ~0, ETH_ALEN); |
| else |
| memcpy(mac_mask->h_dest, mac_addr_ig_mask, |
| ETH_ALEN); |
| } |
| if (spec.match_flags & EFX_FILTER_MATCH_REM_MAC) { |
| memcpy(mac_entry->h_source, spec.rem_mac, ETH_ALEN); |
| memset(mac_mask->h_source, ~0, ETH_ALEN); |
| } |
| if (spec.match_flags & EFX_FILTER_MATCH_ETHER_TYPE) { |
| mac_entry->h_proto = spec.ether_type; |
| mac_mask->h_proto = ETHER_TYPE_FULL_MASK; |
| } |
| } else { |
| /* The above should handle all filters that we insert */ |
| WARN_ON(1); |
| return -EINVAL; |
| } |
| |
| if (spec.match_flags & EFX_FILTER_MATCH_OUTER_VID) { |
| rule->flow_type |= FLOW_EXT; |
| rule->h_ext.vlan_tci = spec.outer_vid; |
| rule->m_ext.vlan_tci = htons(0xfff); |
| } |
| |
| 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) |
| 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, |
| efx->rx_scatter ? EFX_FILTER_FLAG_RX_SCATTER : 0, |
| (rule->ring_cookie == RX_CLS_FLOW_DISC) ? |
| EFX_FILTER_RX_DMAQ_ID_DROP : rule->ring_cookie); |
| |
| switch (rule->flow_type & ~FLOW_EXT) { |
| case TCP_V4_FLOW: |
| case UDP_V4_FLOW: |
| spec.match_flags = (EFX_FILTER_MATCH_ETHER_TYPE | |
| EFX_FILTER_MATCH_IP_PROTO); |
| spec.ether_type = htons(ETH_P_IP); |
| spec.ip_proto = ((rule->flow_type & ~FLOW_EXT) == TCP_V4_FLOW ? |
| IPPROTO_TCP : IPPROTO_UDP); |
| if (ip_mask->ip4dst) { |
| if (ip_mask->ip4dst != IP4_ADDR_FULL_MASK) |
| return -EINVAL; |
| spec.match_flags |= EFX_FILTER_MATCH_LOC_HOST; |
| spec.loc_host[0] = ip_entry->ip4dst; |
| } |
| if (ip_mask->ip4src) { |
| if (ip_mask->ip4src != IP4_ADDR_FULL_MASK) |
| return -EINVAL; |
| spec.match_flags |= EFX_FILTER_MATCH_REM_HOST; |
| spec.rem_host[0] = ip_entry->ip4src; |
| } |
| if (ip_mask->pdst) { |
| if (ip_mask->pdst != PORT_FULL_MASK) |
| return -EINVAL; |
| spec.match_flags |= EFX_FILTER_MATCH_LOC_PORT; |
| spec.loc_port = ip_entry->pdst; |
| } |
| if (ip_mask->psrc) { |
| if (ip_mask->psrc != PORT_FULL_MASK) |
| return -EINVAL; |
| spec.match_flags |= EFX_FILTER_MATCH_REM_PORT; |
| spec.rem_port = ip_entry->psrc; |
| } |
| if (ip_mask->tos) |
| return -EINVAL; |
| break; |
| |
| case ETHER_FLOW: |
| if (!is_zero_ether_addr(mac_mask->h_dest)) { |
| if (ether_addr_equal(mac_mask->h_dest, |
| mac_addr_ig_mask)) |
| spec.match_flags |= EFX_FILTER_MATCH_LOC_MAC_IG; |
| else if (is_broadcast_ether_addr(mac_mask->h_dest)) |
| spec.match_flags |= EFX_FILTER_MATCH_LOC_MAC; |
| else |
| return -EINVAL; |
| memcpy(spec.loc_mac, mac_entry->h_dest, ETH_ALEN); |
| } |
| if (!is_zero_ether_addr(mac_mask->h_source)) { |
| if (!is_broadcast_ether_addr(mac_mask->h_source)) |
| return -EINVAL; |
| spec.match_flags |= EFX_FILTER_MATCH_REM_MAC; |
| memcpy(spec.rem_mac, mac_entry->h_source, ETH_ALEN); |
| } |
| if (mac_mask->h_proto) { |
| if (mac_mask->h_proto != ETHER_TYPE_FULL_MASK) |
| return -EINVAL; |
| spec.match_flags |= EFX_FILTER_MATCH_ETHER_TYPE; |
| spec.ether_type = mac_entry->h_proto; |
| } |
| break; |
| |
| default: |
| return -EINVAL; |
| } |
| |
| if ((rule->flow_type & FLOW_EXT) && rule->m_ext.vlan_tci) { |
| if (rule->m_ext.vlan_tci != htons(0xfff)) |
| return -EINVAL; |
| spec.match_flags |= EFX_FILTER_MATCH_OUTER_VID; |
| spec.outer_vid = rule->h_ext.vlan_tci; |
| } |
| |
| 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->type->rx_push_rss_config(efx); |
| return 0; |
| } |
| |
| static int efx_ethtool_get_ts_info(struct net_device *net_dev, |
| struct ethtool_ts_info *ts_info) |
| { |
| struct efx_nic *efx = netdev_priv(net_dev); |
| |
| /* Software capabilities */ |
| ts_info->so_timestamping = (SOF_TIMESTAMPING_RX_SOFTWARE | |
| SOF_TIMESTAMPING_SOFTWARE); |
| ts_info->phc_index = -1; |
| |
| efx_ptp_get_ts_info(efx, ts_info); |
| 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_ts_info = efx_ethtool_get_ts_info, |
| .get_module_info = efx_ethtool_get_module_info, |
| .get_module_eeprom = efx_ethtool_get_module_eeprom, |
| }; |