diff options
Diffstat (limited to 'drivers/net/ethernet/sfc/falcon/ethtool.c')
| -rw-r--r-- | drivers/net/ethernet/sfc/falcon/ethtool.c | 1343 |
1 files changed, 1343 insertions, 0 deletions
diff --git a/drivers/net/ethernet/sfc/falcon/ethtool.c b/drivers/net/ethernet/sfc/falcon/ethtool.c new file mode 100644 index 000000000000..8e1929b01a32 --- /dev/null +++ b/drivers/net/ethernet/sfc/falcon/ethtool.c @@ -0,0 +1,1343 @@ +/**************************************************************************** + * 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 ef4_sw_stat_desc { + const char *name; + enum { + EF4_ETHTOOL_STAT_SOURCE_nic, + EF4_ETHTOOL_STAT_SOURCE_channel, + EF4_ETHTOOL_STAT_SOURCE_tx_queue + } source; + unsigned offset; + u64(*get_stat) (void *field); /* Reader function */ +}; + +/* Initialiser for a struct ef4_sw_stat_desc with type-checking */ +#define EF4_ETHTOOL_STAT(stat_name, source_name, field, field_type, \ + get_stat_function) { \ + .name = #stat_name, \ + .source = EF4_ETHTOOL_STAT_SOURCE_##source_name, \ + .offset = ((((field_type *) 0) == \ + &((struct ef4_##source_name *)0)->field) ? \ + offsetof(struct ef4_##source_name, field) : \ + offsetof(struct ef4_##source_name, field)), \ + .get_stat = get_stat_function, \ +} + +static u64 ef4_get_uint_stat(void *field) +{ + return *(unsigned int *)field; +} + +static u64 ef4_get_atomic_stat(void *field) +{ + return atomic_read((atomic_t *) field); +} + +#define EF4_ETHTOOL_ATOMIC_NIC_ERROR_STAT(field) \ + EF4_ETHTOOL_STAT(field, nic, field, \ + atomic_t, ef4_get_atomic_stat) + +#define EF4_ETHTOOL_UINT_CHANNEL_STAT(field) \ + EF4_ETHTOOL_STAT(field, channel, n_##field, \ + unsigned int, ef4_get_uint_stat) + +#define EF4_ETHTOOL_UINT_TXQ_STAT(field) \ + EF4_ETHTOOL_STAT(tx_##field, tx_queue, field, \ + unsigned int, ef4_get_uint_stat) + +static const struct ef4_sw_stat_desc ef4_sw_stat_desc[] = { + EF4_ETHTOOL_UINT_TXQ_STAT(merge_events), + EF4_ETHTOOL_UINT_TXQ_STAT(pushes), + EF4_ETHTOOL_UINT_TXQ_STAT(cb_packets), + EF4_ETHTOOL_ATOMIC_NIC_ERROR_STAT(rx_reset), + EF4_ETHTOOL_UINT_CHANNEL_STAT(rx_tobe_disc), + EF4_ETHTOOL_UINT_CHANNEL_STAT(rx_ip_hdr_chksum_err), + EF4_ETHTOOL_UINT_CHANNEL_STAT(rx_tcp_udp_chksum_err), + EF4_ETHTOOL_UINT_CHANNEL_STAT(rx_mcast_mismatch), + EF4_ETHTOOL_UINT_CHANNEL_STAT(rx_frm_trunc), + EF4_ETHTOOL_UINT_CHANNEL_STAT(rx_merge_events), + EF4_ETHTOOL_UINT_CHANNEL_STAT(rx_merge_packets), +}; + +#define EF4_ETHTOOL_SW_STAT_COUNT ARRAY_SIZE(ef4_sw_stat_desc) + +#define EF4_ETHTOOL_EEPROM_MAGIC 0xEFAB + +/************************************************************************** + * + * Ethtool operations + * + ************************************************************************** + */ + +/* Identify device by flashing LEDs */ +static int ef4_ethtool_phys_id(struct net_device *net_dev, + enum ethtool_phys_id_state state) +{ + struct ef4_nic *efx = netdev_priv(net_dev); + enum ef4_led_mode mode = EF4_LED_DEFAULT; + + switch (state) { + case ETHTOOL_ID_ON: + mode = EF4_LED_ON; + break; + case ETHTOOL_ID_OFF: + mode = EF4_LED_OFF; + break; + case ETHTOOL_ID_INACTIVE: + mode = EF4_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 ef4_ethtool_get_settings(struct net_device *net_dev, + struct ethtool_cmd *ecmd) +{ + struct ef4_nic *efx = netdev_priv(net_dev); + struct ef4_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 ef4_ethtool_set_settings(struct net_device *net_dev, + struct ethtool_cmd *ecmd) +{ + struct ef4_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 ef4_ethtool_get_drvinfo(struct net_device *net_dev, + struct ethtool_drvinfo *info) +{ + struct ef4_nic *efx = netdev_priv(net_dev); + + strlcpy(info->driver, KBUILD_MODNAME, sizeof(info->driver)); + strlcpy(info->version, EF4_DRIVER_VERSION, sizeof(info->version)); + strlcpy(info->bus_info, pci_name(efx->pci_dev), sizeof(info->bus_info)); +} + +static int ef4_ethtool_get_regs_len(struct net_device *net_dev) +{ + return ef4_nic_get_regs_len(netdev_priv(net_dev)); +} + +static void ef4_ethtool_get_regs(struct net_device *net_dev, + struct ethtool_regs *regs, void *buf) +{ + struct ef4_nic *efx = netdev_priv(net_dev); + + regs->version = efx->type->revision; + ef4_nic_get_regs(efx, buf); +} + +static u32 ef4_ethtool_get_msglevel(struct net_device *net_dev) +{ + struct ef4_nic *efx = netdev_priv(net_dev); + return efx->msg_enable; +} + +static void ef4_ethtool_set_msglevel(struct net_device *net_dev, u32 msg_enable) +{ + struct ef4_nic *efx = netdev_priv(net_dev); + efx->msg_enable = msg_enable; +} + +/** + * ef4_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 ef4_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 EF4_CHANNEL_NAME(_channel) "chan%d", _channel->channel +#define EF4_TX_QUEUE_NAME(_tx_queue) "txq%d", _tx_queue->queue +#define EF4_RX_QUEUE_NAME(_rx_queue) "rxq%d", _rx_queue->queue +#define EF4_LOOPBACK_NAME(_mode, _counter) \ + "loopback.%s." _counter, STRING_TABLE_LOOKUP(_mode, ef4_loopback_mode) + +/** + * ef4_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 + * + * Fill in a block of loopback self-test entries. Return new test + * index. + */ +static int ef4_fill_loopback_test(struct ef4_nic *efx, + struct ef4_loopback_self_tests *lb_tests, + enum ef4_loopback_mode mode, + unsigned int test_index, + u8 *strings, u64 *data) +{ + struct ef4_channel *channel = + ef4_get_channel(efx, efx->tx_channel_offset); + struct ef4_tx_queue *tx_queue; + + ef4_for_each_channel_tx_queue(tx_queue, channel) { + ef4_fill_test(test_index++, strings, data, + &lb_tests->tx_sent[tx_queue->queue], + EF4_TX_QUEUE_NAME(tx_queue), + EF4_LOOPBACK_NAME(mode, "tx_sent")); + ef4_fill_test(test_index++, strings, data, + &lb_tests->tx_done[tx_queue->queue], + EF4_TX_QUEUE_NAME(tx_queue), + EF4_LOOPBACK_NAME(mode, "tx_done")); + } + ef4_fill_test(test_index++, strings, data, + &lb_tests->rx_good, + "rx", 0, + EF4_LOOPBACK_NAME(mode, "rx_good")); + ef4_fill_test(test_index++, strings, data, + &lb_tests->rx_bad, + "rx", 0, + EF4_LOOPBACK_NAME(mode, "rx_bad")); + + return test_index; +} + +/** + * ef4_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 + * + * Get self-test number of strings, strings, and/or test results. + * Return number of strings (== number of test results). + * + * The reason for merging these three functions is to make sure that + * they can never be inconsistent. + */ +static int ef4_ethtool_fill_self_tests(struct ef4_nic *efx, + struct ef4_self_tests *tests, + u8 *strings, u64 *data) +{ + struct ef4_channel *channel; + unsigned int n = 0, i; + enum ef4_loopback_mode mode; + + ef4_fill_test(n++, strings, data, &tests->phy_alive, + "phy", 0, "alive", NULL); + ef4_fill_test(n++, strings, data, &tests->nvram, + "core", 0, "nvram", NULL); + ef4_fill_test(n++, strings, data, &tests->interrupt, + "core", 0, "interrupt", NULL); + + /* Event queues */ + ef4_for_each_channel(channel, efx) { + ef4_fill_test(n++, strings, data, + &tests->eventq_dma[channel->channel], + EF4_CHANNEL_NAME(channel), + "eventq.dma", NULL); + ef4_fill_test(n++, strings, data, + &tests->eventq_int[channel->channel], + EF4_CHANNEL_NAME(channel), + "eventq.int", NULL); + } + + ef4_fill_test(n++, strings, data, &tests->memory, + "core", 0, "memory", NULL); + ef4_fill_test(n++, strings, data, &tests->registers, + "core", 0, "registers", NULL); + + if (efx->phy_op->run_tests != NULL) { + EF4_BUG_ON_PARANOID(efx->phy_op->test_name == NULL); + + for (i = 0; true; ++i) { + const char *name; + + EF4_BUG_ON_PARANOID(i >= EF4_MAX_PHY_TESTS); + name = efx->phy_op->test_name(efx, i); + if (name == NULL) + break; + + ef4_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 = ef4_fill_loopback_test(efx, + &tests->loopback[mode], mode, n, + strings, data); + } + + return n; +} + +static size_t ef4_describe_per_queue_stats(struct ef4_nic *efx, u8 *strings) +{ + size_t n_stats = 0; + struct ef4_channel *channel; + + ef4_for_each_channel(channel, efx) { + if (ef4_channel_has_tx_queues(channel)) { + n_stats++; + if (strings != NULL) { + snprintf(strings, ETH_GSTRING_LEN, + "tx-%u.tx_packets", + channel->tx_queue[0].queue / + EF4_TXQ_TYPES); + + strings += ETH_GSTRING_LEN; + } + } + } + ef4_for_each_channel(channel, efx) { + if (ef4_channel_has_rx_queue(channel)) { + n_stats++; + if (strings != NULL) { + snprintf(strings, ETH_GSTRING_LEN, + "rx-%d.rx_packets", channel->channel); + strings += ETH_GSTRING_LEN; + } + } + } + return n_stats; +} + +static int ef4_ethtool_get_sset_count(struct net_device *net_dev, + int string_set) +{ + struct ef4_nic *efx = netdev_priv(net_dev); + + switch (string_set) { + case ETH_SS_STATS: + return efx->type->describe_stats(efx, NULL) + + EF4_ETHTOOL_SW_STAT_COUNT + + ef4_describe_per_queue_stats(efx, NULL); + case ETH_SS_TEST: + return ef4_ethtool_fill_self_tests(efx, NULL, NULL, NULL); + default: + return -EINVAL; + } +} + +static void ef4_ethtool_get_strings(struct net_device *net_dev, + u32 string_set, u8 *strings) +{ + struct ef4_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 < EF4_ETHTOOL_SW_STAT_COUNT; i++) + strlcpy(strings + i * ETH_GSTRING_LEN, + ef4_sw_stat_desc[i].name, ETH_GSTRING_LEN); + strings += EF4_ETHTOOL_SW_STAT_COUNT * ETH_GSTRING_LEN; + strings += (ef4_describe_per_queue_stats(efx, strings) * + ETH_GSTRING_LEN); + break; + case ETH_SS_TEST: + ef4_ethtool_fill_self_tests(efx, NULL, strings, NULL); + break; + default: + /* No other string sets */ + break; + } +} + +static void ef4_ethtool_get_stats(struct net_device *net_dev, + struct ethtool_stats *stats, + u64 *data) +{ + struct ef4_nic *efx = netdev_priv(net_dev); + const struct ef4_sw_stat_desc *stat; + struct ef4_channel *channel; + struct ef4_tx_queue *tx_queue; + struct ef4_rx_queue *rx_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 < EF4_ETHTOOL_SW_STAT_COUNT; i++) { + stat = &ef4_sw_stat_desc[i]; + switch (stat->source) { + case EF4_ETHTOOL_STAT_SOURCE_nic: + data[i] = stat->get_stat((void *)efx + stat->offset); + break; + case EF4_ETHTOOL_STAT_SOURCE_channel: + data[i] = 0; + ef4_for_each_channel(channel, efx) + data[i] += stat->get_stat((void *)channel + + stat->offset); + break; + case EF4_ETHTOOL_STAT_SOURCE_tx_queue: + data[i] = 0; + ef4_for_each_channel(channel, efx) { + ef4_for_each_channel_tx_queue(tx_queue, channel) + data[i] += + stat->get_stat((void *)tx_queue + + stat->offset); + } + break; + } + } + data += EF4_ETHTOOL_SW_STAT_COUNT; + + spin_unlock_bh(&efx->stats_lock); + + ef4_for_each_channel(channel, efx) { + if (ef4_channel_has_tx_queues(channel)) { + *data = 0; + ef4_for_each_channel_tx_queue(tx_queue, channel) { + *data += tx_queue->tx_packets; + } + data++; + } + } + ef4_for_each_channel(channel, efx) { + if (ef4_channel_has_rx_queue(channel)) { + *data = 0; + ef4_for_each_channel_rx_queue(rx_queue, channel) { + *data += rx_queue->rx_packets; + } + data++; + } + } +} + +static void ef4_ethtool_self_test(struct net_device *net_dev, + struct ethtool_test *test, u64 *data) +{ + struct ef4_nic *efx = netdev_priv(net_dev); + struct ef4_self_tests *ef4_tests; + bool already_up; + int rc = -ENOMEM; + + ef4_tests = kzalloc(sizeof(*ef4_tests), GFP_KERNEL); + if (!ef4_tests) + goto fail; + + if (efx->state != STATE_READY) { + rc = -EBUSY; + goto out; + } + + 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 out; + } + } + + rc = ef4_selftest(efx, ef4_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"); + +out: + ef4_ethtool_fill_self_tests(efx, ef4_tests, NULL, data); + kfree(ef4_tests); +fail: + if (rc) + test->flags |= ETH_TEST_FL_FAILED; +} + +/* Restart autonegotiation */ +static int ef4_ethtool_nway_reset(struct net_device *net_dev) +{ + struct ef4_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 ef4_ethtool_get_coalesce(struct net_device *net_dev, + struct ethtool_coalesce *coalesce) +{ + struct ef4_nic *efx = netdev_priv(net_dev); + unsigned int tx_usecs, rx_usecs; + bool rx_adaptive; + + ef4_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 ef4_ethtool_set_coalesce(struct net_device *net_dev, + struct ethtool_coalesce *coalesce) +{ + struct ef4_nic *efx = netdev_priv(net_dev); + struct ef4_channel *channel; + unsigned int tx_usecs, rx_usecs; + bool adaptive, rx_may_override_tx; + int rc; + + if (coalesce->use_adaptive_tx_coalesce) + return -EINVAL; + + ef4_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 = ef4_init_irq_moderation(efx, tx_usecs, rx_usecs, adaptive, + rx_may_override_tx); + if (rc != 0) + return rc; + + ef4_for_each_channel(channel, efx) + efx->type->push_irq_moderation(channel); + + return 0; +} + +static void ef4_ethtool_get_ringparam(struct net_device *net_dev, + struct ethtool_ringparam *ring) +{ + struct ef4_nic *efx = netdev_priv(net_dev); + + ring->rx_max_pending = EF4_MAX_DMAQ_SIZE; + ring->tx_max_pending = EF4_MAX_DMAQ_SIZE; + ring->rx_pending = efx->rxq_entries; + ring->tx_pending = efx->txq_entries; +} + +static int ef4_ethtool_set_ringparam(struct net_device *net_dev, + struct ethtool_ringparam *ring) +{ + struct ef4_nic *efx = netdev_priv(net_dev); + u32 txq_entries; + + if (ring->rx_mini_pending || ring->rx_jumbo_pending || + ring->rx_pending > EF4_MAX_DMAQ_SIZE || + ring->tx_pending > EF4_MAX_DMAQ_SIZE) + return -EINVAL; + + if (ring->rx_pending < EF4_RXQ_MIN_ENT) { + netif_err(efx, drv, efx->net_dev, + "RX queues cannot be smaller than %u\n", + EF4_RXQ_MIN_ENT); + return -EINVAL; + } + + txq_entries = max(ring->tx_pending, EF4_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 ef4_realloc_channels(efx, ring->rx_pending, txq_entries); +} + +static int ef4_ethtool_set_pauseparam(struct net_device *net_dev, + struct ethtool_pauseparam *pause) +{ + struct ef4_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 ? EF4_FC_RX : 0) | + (pause->tx_pause ? EF4_FC_TX : 0) | + (pause->autoneg ? EF4_FC_AUTO : 0)); + + if ((wanted_fc & EF4_FC_TX) && !(wanted_fc & EF4_FC_RX)) { + netif_dbg(efx, drv, efx->net_dev, + "Flow control unsupported: tx ON rx OFF\n"); + rc = -EINVAL; + goto out; + } + + if ((wanted_fc & EF4_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 & EF4_FC_TX) && !(efx->wanted_fc & EF4_FC_TX)) + efx->type->prepare_enable_fc_tx(efx); + + old_adv = efx->link_advertising; + old_fc = efx->wanted_fc; + ef4_link_set_wanted_fc(efx, wanted_fc); + if (efx->link_advertising != old_adv || + (efx->wanted_fc ^ old_fc) & EF4_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 */ + ef4_mac_reconfigure(efx); + +out: + mutex_unlock(&efx->mac_lock); + + return rc; +} + +static void ef4_ethtool_get_pauseparam(struct net_device *net_dev, + struct ethtool_pauseparam *pause) +{ + struct ef4_nic *efx = netdev_priv(net_dev); + + pause->rx_pause = !!(efx->wanted_fc & EF4_FC_RX); + pause->tx_pause = !!(efx->wanted_fc & EF4_FC_TX); + pause->autoneg = !!(efx->wanted_fc & EF4_FC_AUTO); +} + +static void ef4_ethtool_get_wol(struct net_device *net_dev, + struct ethtool_wolinfo *wol) +{ + struct ef4_nic *efx = netdev_priv(net_dev); + return efx->type->get_wol(efx, wol); +} + + +static int ef4_ethtool_set_wol(struct net_device *net_dev, + struct ethtool_wolinfo *wol) +{ + struct ef4_nic *efx = netdev_priv(net_dev); + return efx->type->set_wol(efx, wol->wolopts); +} + +static int ef4_ethtool_reset(struct net_device *net_dev, u32 *flags) +{ + struct ef4_nic *efx = netdev_priv(net_dev); + int rc; + + rc = efx->type->map_reset_flags(flags); + if (rc < 0) + return rc; + + return ef4_reset(efx, rc); +} + +/* MAC address mask including only I/G bit */ +static const u8 mac_addr_ig_mask[ETH_ALEN] __aligned(2) = {0x01, 0, 0, 0, 0, 0}; + +#define IP4_ADDR_FULL_MASK ((__force __be32)~0) +#define IP_PROTO_FULL_MASK 0xFF +#define PORT_FULL_MASK ((__force __be16)~0) +#define ETHER_TYPE_FULL_MASK ((__force __be16)~0) + +static inline void ip6_fill_mask(__be32 *mask) +{ + mask[0] = mask[1] = mask[2] = mask[3] = ~(__be32)0; +} + +static int ef4_ethtool_get_class_rule(struct ef4_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 ethtool_usrip4_spec *uip_entry = &rule->h_u.usr_ip4_spec; + struct ethtool_usrip4_spec *uip_mask = &rule->m_u.usr_ip4_spec; + struct ethtool_tcpip6_spec *ip6_entry = &rule->h_u.tcp_ip6_spec; + struct ethtool_tcpip6_spec *ip6_mask = &rule->m_u.tcp_ip6_spec; + struct ethtool_usrip6_spec *uip6_entry = &rule->h_u.usr_ip6_spec; + struct ethtool_usrip6_spec *uip6_mask = &rule->m_u.usr_ip6_spec; + struct ethhdr *mac_entry = &rule->h_u.ether_spec; + struct ethhdr *mac_mask = &rule->m_u.ether_spec; + struct ef4_filter_spec spec; + int rc; + + rc = ef4_filter_get_filter_safe(efx, EF4_FILTER_PRI_MANUAL, + rule->location, &spec); + if (rc) + return rc; + + if (spec.dmaq_id == EF4_FILTER_RX_DMAQ_ID_DROP) + rule->ring_cookie = RX_CLS_FLOW_DISC; + else + rule->ring_cookie = spec.dmaq_id; + + if ((spec.match_flags & EF4_FILTER_MATCH_ETHER_TYPE) && + spec.ether_type == htons(ETH_P_IP) && + (spec.match_flags & EF4_FILTER_MATCH_IP_PROTO) && + (spec.ip_proto == IPPROTO_TCP || spec.ip_proto == IPPROTO_UDP) && + !(spec.match_flags & + ~(EF4_FILTER_MATCH_ETHER_TYPE | EF4_FILTER_MATCH_OUTER_VID | + EF4_FILTER_MATCH_LOC_HOST | EF4_FILTER_MATCH_REM_HOST | + EF4_FILTER_MATCH_IP_PROTO | + EF4_FILTER_MATCH_LOC_PORT | EF4_FILTER_MATCH_REM_PORT))) { + rule->flow_type = ((spec.ip_proto == IPPROTO_TCP) ? + TCP_V4_FLOW : UDP_V4_FLOW); + if (spec.match_flags & EF4_FILTER_MATCH_LOC_HOST) { + ip_entry->ip4dst = spec.loc_host[0]; + ip_mask->ip4dst = IP4_ADDR_FULL_MASK; + } + if (spec.match_flags & EF4_FILTER_MATCH_REM_HOST) { + ip_entry->ip4src = spec.rem_host[0]; + ip_mask->ip4src = IP4_ADDR_FULL_MASK; + } + if (spec.match_flags & EF4_FILTER_MATCH_LOC_PORT) { + ip_entry->pdst = spec.loc_port; + ip_mask->pdst = PORT_FULL_MASK; + } + if (spec.match_flags & EF4_FILTER_MATCH_REM_PORT) { + ip_entry->psrc = spec.rem_port; + ip_mask->psrc = PORT_FULL_MASK; + } + } else if ((spec.match_flags & EF4_FILTER_MATCH_ETHER_TYPE) && + spec.ether_type == htons(ETH_P_IPV6) && + (spec.match_flags & EF4_FILTER_MATCH_IP_PROTO) && + (spec.ip_proto == IPPROTO_TCP || spec.ip_proto == IPPROTO_UDP) && + !(spec.match_flags & + ~(EF4_FILTER_MATCH_ETHER_TYPE | EF4_FILTER_MATCH_OUTER_VID | + EF4_FILTER_MATCH_LOC_HOST | EF4_FILTER_MATCH_REM_HOST | + EF4_FILTER_MATCH_IP_PROTO | + EF4_FILTER_MATCH_LOC_PORT | EF4_FILTER_MATCH_REM_PORT))) { + rule->flow_type = ((spec.ip_proto == IPPROTO_TCP) ? + TCP_V6_FLOW : UDP_V6_FLOW); + if (spec.match_flags & EF4_FILTER_MATCH_LOC_HOST) { + memcpy(ip6_entry->ip6dst, spec.loc_host, + sizeof(ip6_entry->ip6dst)); + ip6_fill_mask(ip6_mask->ip6dst); + } + if (spec.match_flags & EF4_FILTER_MATCH_REM_HOST) { + memcpy(ip6_entry->ip6src, spec.rem_host, + sizeof(ip6_entry->ip6src)); + ip6_fill_mask(ip6_mask->ip6src); + } + if (spec.match_flags & EF4_FILTER_MATCH_LOC_PORT) { + ip6_entry->pdst = spec.loc_port; + ip6_mask->pdst = PORT_FULL_MASK; + } + if (spec.match_flags & EF4_FILTER_MATCH_REM_PORT) { + ip6_entry->psrc = spec.rem_port; + ip6_mask->psrc = PORT_FULL_MASK; + } + } else if (!(spec.match_flags & + ~(EF4_FILTER_MATCH_LOC_MAC | EF4_FILTER_MATCH_LOC_MAC_IG | + EF4_FILTER_MATCH_REM_MAC | EF4_FILTER_MATCH_ETHER_TYPE | + EF4_FILTER_MATCH_OUTER_VID))) { + rule->flow_type = ETHER_FLOW; + if (spec.match_flags & + (EF4_FILTER_MATCH_LOC_MAC | EF4_FILTER_MATCH_LOC_MAC_IG)) { + ether_addr_copy(mac_entry->h_dest, spec.loc_mac); + if (spec.match_flags & EF4_FILTER_MATCH_LOC_MAC) + eth_broadcast_addr(mac_mask->h_dest); + else + ether_addr_copy(mac_mask->h_dest, + mac_addr_ig_mask); + } + if (spec.match_flags & EF4_FILTER_MATCH_REM_MAC) { + ether_addr_copy(mac_entry->h_source, spec.rem_mac); + eth_broadcast_addr(mac_mask->h_source); + } + if (spec.match_flags & EF4_FILTER_MATCH_ETHER_TYPE) { + mac_entry->h_proto = spec.ether_type; + mac_mask->h_proto = ETHER_TYPE_FULL_MASK; + } + } else if (spec.match_flags & EF4_FILTER_MATCH_ETHER_TYPE && + spec.ether_type == htons(ETH_P_IP) && + !(spec.match_flags & + ~(EF4_FILTER_MATCH_ETHER_TYPE | EF4_FILTER_MATCH_OUTER_VID | + EF4_FILTER_MATCH_LOC_HOST | EF4_FILTER_MATCH_REM_HOST | + EF4_FILTER_MATCH_IP_PROTO))) { + rule->flow_type = IPV4_USER_FLOW; + uip_entry->ip_ver = ETH_RX_NFC_IP4; + if (spec.match_flags & EF4_FILTER_MATCH_IP_PROTO) { + uip_mask->proto = IP_PROTO_FULL_MASK; + uip_entry->proto = spec.ip_proto; + } + if (spec.match_flags & EF4_FILTER_MATCH_LOC_HOST) { + uip_entry->ip4dst = spec.loc_host[0]; + uip_mask->ip4dst = IP4_ADDR_FULL_MASK; + } + if (spec.match_flags & EF4_FILTER_MATCH_REM_HOST) { + uip_entry->ip4src = spec.rem_host[0]; + uip_mask->ip4src = IP4_ADDR_FULL_MASK; + } + } else if (spec.match_flags & EF4_FILTER_MATCH_ETHER_TYPE && + spec.ether_type == htons(ETH_P_IPV6) && + !(spec.match_flags & + ~(EF4_FILTER_MATCH_ETHER_TYPE | EF4_FILTER_MATCH_OUTER_VID | + EF4_FILTER_MATCH_LOC_HOST | EF4_FILTER_MATCH_REM_HOST | + EF4_FILTER_MATCH_IP_PROTO))) { + rule->flow_type = IPV6_USER_FLOW; + if (spec.match_flags & EF4_FILTER_MATCH_IP_PROTO) { + uip6_mask->l4_proto = IP_PROTO_FULL_MASK; + uip6_entry->l4_proto = spec.ip_proto; + } + if (spec.match_flags & EF4_FILTER_MATCH_LOC_HOST) { + memcpy(uip6_entry->ip6dst, spec.loc_host, + sizeof(uip6_entry->ip6dst)); + ip6_fill_mask(uip6_mask->ip6dst); + } + if (spec.match_flags & EF4_FILTER_MATCH_REM_HOST) { + memcpy(uip6_entry->ip6src, spec.rem_host, + sizeof(uip6_entry->ip6src)); + ip6_fill_mask(uip6_mask->ip6src); + } + } else { + /* The above should handle all filters that we insert */ + WARN_ON(1); + return -EINVAL; + } + + if (spec.match_flags & EF4_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 +ef4_ethtool_get_rxnfc(struct net_device *net_dev, + struct ethtool_rxnfc *info, u32 *rule_locs) +{ + struct ef4_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; + 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 = EF4_REV_FALCON_B0; + break; + default: + break; + } + if (ef4_nic_rev(efx) < min_revision) + info->data = 0; + return 0; + } + + case ETHTOOL_GRXCLSRLCNT: + info->data = ef4_filter_get_rx_id_limit(efx); + if (info->data == 0) + return -EOPNOTSUPP; + info->data |= RX_CLS_LOC_SPECIAL; + info->rule_cnt = + ef4_filter_count_rx_used(efx, EF4_FILTER_PRI_MANUAL); + return 0; + + case ETHTOOL_GRXCLSRULE: + if (ef4_filter_get_rx_id_limit(efx) == 0) + return -EOPNOTSUPP; + return ef4_ethtool_get_class_rule(efx, &info->fs); + + case ETHTOOL_GRXCLSRLALL: { + s32 rc; + info->data = ef4_filter_get_rx_id_limit(efx); + if (info->data == 0) + return -EOPNOTSUPP; + rc = ef4_filter_get_rx_ids(efx, EF4_FILTER_PRI_MANUAL, + rule_locs, info->rule_cnt); + if (rc < 0) + return rc; + info->rule_cnt = rc; + return 0; + } + + default: + return -EOPNOTSUPP; + } +} + +static inline bool ip6_mask_is_full(__be32 mask[4]) +{ + return !~(mask[0] & mask[1] & mask[2] & mask[3]); +} + +static inline bool ip6_mask_is_empty(__be32 mask[4]) +{ + return !(mask[0] | mask[1] | mask[2] | mask[3]); +} + +static int ef4_ethtool_set_class_rule(struct ef4_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 ethtool_usrip4_spec *uip_entry = &rule->h_u.usr_ip4_spec; + struct ethtool_usrip4_spec *uip_mask = &rule->m_u.usr_ip4_spec; + struct ethtool_tcpip6_spec *ip6_entry = &rule->h_u.tcp_ip6_spec; + struct ethtool_tcpip6_spec *ip6_mask = &rule->m_u.tcp_ip6_spec; + struct ethtool_usrip6_spec *uip6_entry = &rule->h_u.usr_ip6_spec; + struct ethtool_usrip6_spec *uip6_mask = &rule->m_u.usr_ip6_spec; + struct ethhdr *mac_entry = &rule->h_u.ether_spec; + struct ethhdr *mac_mask = &rule->m_u.ether_spec; + struct ef4_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; + + ef4_filter_init_rx(&spec, EF4_FILTER_PRI_MANUAL, + efx->rx_scatter ? EF4_FILTER_FLAG_RX_SCATTER : 0, + (rule->ring_cookie == RX_CLS_FLOW_DISC) ? + EF4_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 = (EF4_FILTER_MATCH_ETHER_TYPE | + EF4_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 |= EF4_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 |= EF4_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 |= EF4_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 |= EF4_FILTER_MATCH_REM_PORT; + spec.rem_port = ip_entry->psrc; + } + if (ip_mask->tos) + return -EINVAL; + break; + + case TCP_V6_FLOW: + case UDP_V6_FLOW: + spec.match_flags = (EF4_FILTER_MATCH_ETHER_TYPE | + EF4_FILTER_MATCH_IP_PROTO); + spec.ether_type = htons(ETH_P_IPV6); + spec.ip_proto = ((rule->flow_type & ~FLOW_EXT) == TCP_V6_FLOW ? + IPPROTO_TCP : IPPROTO_UDP); + if (!ip6_mask_is_empty(ip6_mask->ip6dst)) { + if (!ip6_mask_is_full(ip6_mask->ip6dst)) + return -EINVAL; + spec.match_flags |= EF4_FILTER_MATCH_LOC_HOST; + memcpy(spec.loc_host, ip6_entry->ip6dst, sizeof(spec.loc_host)); + } + if (!ip6_mask_is_empty(ip6_mask->ip6src)) { + if (!ip6_mask_is_full(ip6_mask->ip6src)) + return -EINVAL; + spec.match_flags |= EF4_FILTER_MATCH_REM_HOST; + memcpy(spec.rem_host, ip6_entry->ip6src, sizeof(spec.rem_host)); + } + if (ip6_mask->pdst) { + if (ip6_mask->pdst != PORT_FULL_MASK) + return -EINVAL; + spec.match_flags |= EF4_FILTER_MATCH_LOC_PORT; + spec.loc_port = ip6_entry->pdst; + } + if (ip6_mask->psrc) { + if (ip6_mask->psrc != PORT_FULL_MASK) + return -EINVAL; + spec.match_flags |= EF4_FILTER_MATCH_REM_PORT; + spec.rem_port = ip6_entry->psrc; + } + if (ip6_mask->tclass) + return -EINVAL; + break; + + case IPV4_USER_FLOW: + if (uip_mask->l4_4_bytes || uip_mask->tos || uip_mask->ip_ver || + uip_entry->ip_ver != ETH_RX_NFC_IP4) + return -EINVAL; + spec.match_flags = EF4_FILTER_MATCH_ETHER_TYPE; + spec.ether_type = htons(ETH_P_IP); + if (uip_mask->ip4dst) { + if (uip_mask->ip4dst != IP4_ADDR_FULL_MASK) + return -EINVAL; + spec.match_flags |= EF4_FILTER_MATCH_LOC_HOST; + spec.loc_host[0] = uip_entry->ip4dst; + } + if (uip_mask->ip4src) { + if (uip_mask->ip4src != IP4_ADDR_FULL_MASK) + return -EINVAL; + spec.match_flags |= EF4_FILTER_MATCH_REM_HOST; + spec.rem_host[0] = uip_entry->ip4src; + } + if (uip_mask->proto) { + if (uip_mask->proto != IP_PROTO_FULL_MASK) + return -EINVAL; + spec.match_flags |= EF4_FILTER_MATCH_IP_PROTO; + spec.ip_proto = uip_entry->proto; + } + break; + + case IPV6_USER_FLOW: + if (uip6_mask->l4_4_bytes || uip6_mask->tclass) + return -EINVAL; + spec.match_flags = EF4_FILTER_MATCH_ETHER_TYPE; + spec.ether_type = htons(ETH_P_IPV6); + if (!ip6_mask_is_empty(uip6_mask->ip6dst)) { + if (!ip6_mask_is_full(uip6_mask->ip6dst)) + return -EINVAL; + spec.match_flags |= EF4_FILTER_MATCH_LOC_HOST; + memcpy(spec.loc_host, uip6_entry->ip6dst, sizeof(spec.loc_host)); + } + if (!ip6_mask_is_empty(uip6_mask->ip6src)) { + if (!ip6_mask_is_full(uip6_mask->ip6src)) + return -EINVAL; + spec.match_flags |= EF4_FILTER_MATCH_REM_HOST; + memcpy(spec.rem_host, uip6_entry->ip6src, sizeof(spec.rem_host)); + } + if (uip6_mask->l4_proto) { + if (uip6_mask->l4_proto != IP_PROTO_FULL_MASK) + return -EINVAL; + spec.match_flags |= EF4_FILTER_MATCH_IP_PROTO; + spec.ip_proto = uip6_entry->l4_proto; + } + 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 |= EF4_FILTER_MATCH_LOC_MAC_IG; + else if (is_broadcast_ether_addr(mac_mask->h_dest)) + spec.match_flags |= EF4_FILTER_MATCH_LOC_MAC; + else + return -EINVAL; + ether_addr_copy(spec.loc_mac, mac_entry->h_dest); + } + if (!is_zero_ether_addr(mac_mask->h_source)) { + if (!is_broadcast_ether_addr(mac_mask->h_source)) + return -EINVAL; + spec.match_flags |= EF4_FILTER_MATCH_REM_MAC; + ether_addr_copy(spec.rem_mac, mac_entry->h_source); + } + if (mac_mask->h_proto) { + if (mac_mask->h_proto != ETHER_TYPE_FULL_MASK) + return -EINVAL; + spec.match_flags |= EF4_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 |= EF4_FILTER_MATCH_OUTER_VID; + spec.outer_vid = rule->h_ext.vlan_tci; + } + + rc = ef4_filter_insert_filter(efx, &spec, true); + if (rc < 0) + return rc; + + rule->location = rc; + return 0; +} + +static int ef4_ethtool_set_rxnfc(struct net_device *net_dev, + struct ethtool_rxnfc *info) +{ + struct ef4_nic *efx = netdev_priv(net_dev); + + if (ef4_filter_get_rx_id_limit(efx) == 0) + return -EOPNOTSUPP; + + switch (info->cmd) { + case ETHTOOL_SRXCLSRLINS: + return ef4_ethtool_set_class_rule(efx, &info->fs); + + case ETHTOOL_SRXCLSRLDEL: + return ef4_filter_remove_id_safe(efx, EF4_FILTER_PRI_MANUAL, + info->fs.location); + + default: + return -EOPNOTSUPP; + } +} + +static u32 ef4_ethtool_get_rxfh_indir_size(struct net_device *net_dev) +{ + struct ef4_nic *efx = netdev_priv(net_dev); + + return ((ef4_nic_rev(efx) < EF4_REV_FALCON_B0 || + efx->n_rx_channels == 1) ? + 0 : ARRAY_SIZE(efx->rx_indir_table)); +} + +static int ef4_ethtool_get_rxfh(struct net_device *net_dev, u32 *indir, u8 *key, + u8 *hfunc) +{ + struct ef4_nic *efx = netdev_priv(net_dev); + + if (hfunc) + *hfunc = ETH_RSS_HASH_TOP; + if (indir) + memcpy(indir, efx->rx_indir_table, sizeof(efx->rx_indir_table)); + return 0; +} + +static int ef4_ethtool_set_rxfh(struct net_device *net_dev, const u32 *indir, + const u8 *key, const u8 hfunc) +{ + struct ef4_nic *efx = netdev_priv(net_dev); + + /* We do not allow change in unsupported parameters */ + if (key || + (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP)) + return -EOPNOTSUPP; + if (!indir) + return 0; + + return efx->type->rx_push_rss_config(efx, true, indir); +} + +static int ef4_ethtool_get_module_eeprom(struct net_device *net_dev, + struct ethtool_eeprom *ee, + u8 *data) +{ + struct ef4_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 ef4_ethtool_get_module_info(struct net_device *net_dev, + struct ethtool_modinfo *modinfo) +{ + struct ef4_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 ef4_ethtool_ops = { + .get_settings = ef4_ethtool_get_settings, + .set_settings = ef4_ethtool_set_settings, + .get_drvinfo = ef4_ethtool_get_drvinfo, + .get_regs_len = ef4_ethtool_get_regs_len, + .get_regs = ef4_ethtool_get_regs, + .get_msglevel = ef4_ethtool_get_msglevel, + .set_msglevel = ef4_ethtool_set_msglevel, + .nway_reset = ef4_ethtool_nway_reset, + .get_link = ethtool_op_get_link, + .get_coalesce = ef4_ethtool_get_coalesce, + .set_coalesce = ef4_ethtool_set_coalesce, + .get_ringparam = ef4_ethtool_get_ringparam, + .set_ringparam = ef4_ethtool_set_ringparam, + .get_pauseparam = ef4_ethtool_get_pauseparam, + .set_pauseparam = ef4_ethtool_set_pauseparam, + .get_sset_count = ef4_ethtool_get_sset_count, + .self_test = ef4_ethtool_self_test, + .get_strings = ef4_ethtool_get_strings, + .set_phys_id = ef4_ethtool_phys_id, + .get_ethtool_stats = ef4_ethtool_get_stats, + .get_wol = ef4_ethtool_get_wol, + .set_wol = ef4_ethtool_set_wol, + .reset = ef4_ethtool_reset, + .get_rxnfc = ef4_ethtool_get_rxnfc, + .set_rxnfc = ef4_ethtool_set_rxnfc, + .get_rxfh_indir_size = ef4_ethtool_get_rxfh_indir_size, + .get_rxfh = ef4_ethtool_get_rxfh, + .set_rxfh = ef4_ethtool_set_rxfh, + .get_module_info = ef4_ethtool_get_module_info, + .get_module_eeprom = ef4_ethtool_get_module_eeprom, +}; |