1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768697071727374757677787980818283848586878889909192939495969798991001011021031041051061071081091101111121131141151161171181191201211221231241251261271281291301311321331341351361371381391401411421431441451461471481491501511521531541551561571581591601611621631641651661671681691701711721731741751761771781791801811821831841851861871881891901911921931941951961971981992002012022032042052062072082092102112122132142152162172182192202212222232242252262272282292302312322332342352362372382392402412422432442452462472482492502512522532542552562572582592602612622632642652662672682692702712722732742752762772782792802812822832842852862872882892902912922932942952962972982993003013023033043053063073083093103113123133143153163173183193203213223233243253263273283293303313323333343353363373383393403413423433443453463473483493503513523533543553563573583593603613623633643653663673683693703713723733743753763773783793803813823833843853863873883893903913923933943953963973983994004014024034044054064074084094104114124134144154164174184194204214224234244254264274284294304314324334344354364374384394404414424434444454464474484494504514524534544554564574584594604614624634644654664674684694704714724734744754764774784794804814824834844854864874884894904914924934944954964974984995005015025035045055065075085095105115125135145155165175185195205215225235245255265275285295305315325335345355365375385395405415425435445455465475485495505515525535545555565575585595605615625635645655665675685695705715725735745755765775785795805815825835845855865875885895905915925935945955965975985996006016026036046056066076086096106116126136146156166176186196206216226236246256266276286296306316326336346356366376386396406416426436446456466476486496506516526536546556566576586596606616626636646656666676686696706716726736746756766776786796806816826836846856866876886896906916926936946956966976986997007017027037047057067077087097107117127137147157167177187197207217227237247257267277287297307317327337347357367377387397407417427437447457467477487497507517527537547557567577587597607617627637647657667677687697707717727737747757767777787797807817827837847857867877887897907917927937947957967977987998008018028038048058068078088098108118128138148158168178188198208218228238248258268278288298308318328338348358368378388398408418428438448458468478488498508518528538548558568578588598608618628638648658668678688698708718728738748758768778788798808818828838848858868878888898908918928938948958968978988999009019029039049059069079089099109119129139149159169179189199209219229239249259269279289299309319329339349359369379389399409419429439449459469479489499509519529539549559569579589599609619629639649659669679689699709719729739749759769779789799809819829839849859869879889899909919929939949959969979989991000100110021003100410051006100710081009101010111012101310141015101610171018101910201021102210231024102510261027102810291030103110321033103410351036103710381039104010411042104310441045104610471048104910501051105210531054105510561057105810591060106110621063106410651066106710681069107010711072107310741075107610771078107910801081108210831084108510861087108810891090109110921093109410951096109710981099110011011102110311041105110611071108110911101111111211131114111511161117111811191120112111221123112411251126112711281129113011311132113311341135113611371138113911401141114211431144114511461147114811491150115111521153115411551156115711581159116011611162116311641165116611671168116911701171117211731174117511761177117811791180118111821183118411851186118711881189119011911192119311941195 |
- /****************************************************************************
- * 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_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
- *
- * Fill in a block of loopback self-test entries. Return new test
- * index.
- */
- 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
- *
- * 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 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 size_t efx_describe_per_queue_stats(struct efx_nic *efx, u8 *strings)
- {
- size_t n_stats = 0;
- struct efx_channel *channel;
- efx_for_each_channel(channel, efx) {
- if (efx_channel_has_tx_queues(channel)) {
- n_stats++;
- if (strings != NULL) {
- snprintf(strings, ETH_GSTRING_LEN,
- "tx-%u.tx_packets",
- channel->tx_queue[0].queue /
- EFX_TXQ_TYPES);
- strings += ETH_GSTRING_LEN;
- }
- }
- }
- efx_for_each_channel(channel, efx) {
- if (efx_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 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_describe_per_queue_stats(efx, NULL) +
- 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;
- strings += (efx_describe_per_queue_stats(efx, strings) *
- 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;
- struct efx_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 < 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_for_each_channel(channel, efx) {
- if (efx_channel_has_tx_queues(channel)) {
- *data = 0;
- efx_for_each_channel_tx_queue(tx_queue, channel) {
- *data += tx_queue->tx_packets;
- }
- data++;
- }
- }
- efx_for_each_channel(channel, efx) {
- if (efx_channel_has_rx_queue(channel)) {
- *data = 0;
- efx_for_each_channel_rx_queue(rx_queue, channel) {
- *data += rx_queue->rx_packets;
- }
- data++;
- }
- }
- 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;
- bool already_up;
- int rc = -ENOMEM;
- efx_tests = kzalloc(sizeof(*efx_tests), GFP_KERNEL);
- if (!efx_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 = 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");
- out:
- 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_mac_reconfigure(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] __aligned(2) = {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)) {
- ether_addr_copy(mac_entry->h_dest, spec.loc_mac);
- if (spec.match_flags & EFX_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 & EFX_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 & 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;
- 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 |= EFX_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 |= 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(struct net_device *net_dev, u32 *indir, u8 *key,
- u8 *hfunc)
- {
- struct efx_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 efx_ethtool_set_rxfh(struct net_device *net_dev, const u32 *indir,
- const u8 *key, const u8 hfunc)
- {
- struct efx_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 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 = efx_ethtool_get_rxfh,
- .set_rxfh = efx_ethtool_set_rxfh,
- .get_ts_info = efx_ethtool_get_ts_info,
- .get_module_info = efx_ethtool_get_module_info,
- .get_module_eeprom = efx_ethtool_get_module_eeprom,
- };
|