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1// SPDX-License-Identifier: GPL-2.0-only2/****************************************************************************3 * Driver for Solarflare network controllers and boards4 * Copyright 2019 Solarflare Communications Inc.5 *6 * This program is free software; you can redistribute it and/or modify it7 * under the terms of the GNU General Public License version 2 as published8 * by the Free Software Foundation, incorporated herein by reference.9 */10#include <linux/module.h>11#include <linux/netdevice.h>12#include "net_driver.h"13#include "mcdi.h"14#include "nic.h"15#include "selftest.h"16#include "rx_common.h"17#include "ethtool_common.h"18#include "mcdi_port_common.h"19 20struct efx_sw_stat_desc {21 const char *name;22 enum {23 EFX_ETHTOOL_STAT_SOURCE_nic,24 EFX_ETHTOOL_STAT_SOURCE_channel,25 EFX_ETHTOOL_STAT_SOURCE_tx_queue26 } source;27 unsigned int offset;28 u64 (*get_stat)(void *field); /* Reader function */29};30 31/* Initialiser for a struct efx_sw_stat_desc with type-checking */32#define EFX_ETHTOOL_STAT(stat_name, source_name, field, field_type, \33 get_stat_function) { \34 .name = #stat_name, \35 .source = EFX_ETHTOOL_STAT_SOURCE_##source_name, \36 .offset = ((((field_type *) 0) == \37 &((struct efx_##source_name *)0)->field) ? \38 offsetof(struct efx_##source_name, field) : \39 offsetof(struct efx_##source_name, field)), \40 .get_stat = get_stat_function, \41}42 43static u64 efx_get_uint_stat(void *field)44{45 return *(unsigned int *)field;46}47 48static u64 efx_get_atomic_stat(void *field)49{50 return atomic_read((atomic_t *) field);51}52 53#define EFX_ETHTOOL_ATOMIC_NIC_ERROR_STAT(field) \54 EFX_ETHTOOL_STAT(field, nic, field, \55 atomic_t, efx_get_atomic_stat)56 57#define EFX_ETHTOOL_UINT_CHANNEL_STAT(field) \58 EFX_ETHTOOL_STAT(field, channel, n_##field, \59 unsigned int, efx_get_uint_stat)60#define EFX_ETHTOOL_UINT_CHANNEL_STAT_NO_N(field) \61 EFX_ETHTOOL_STAT(field, channel, field, \62 unsigned int, efx_get_uint_stat)63 64#define EFX_ETHTOOL_UINT_TXQ_STAT(field) \65 EFX_ETHTOOL_STAT(tx_##field, tx_queue, field, \66 unsigned int, efx_get_uint_stat)67 68static const struct efx_sw_stat_desc efx_sw_stat_desc[] = {69 EFX_ETHTOOL_UINT_TXQ_STAT(merge_events),70 EFX_ETHTOOL_UINT_TXQ_STAT(tso_bursts),71 EFX_ETHTOOL_UINT_TXQ_STAT(tso_long_headers),72 EFX_ETHTOOL_UINT_TXQ_STAT(tso_packets),73 EFX_ETHTOOL_UINT_TXQ_STAT(tso_fallbacks),74 EFX_ETHTOOL_UINT_TXQ_STAT(pushes),75 EFX_ETHTOOL_UINT_TXQ_STAT(pio_packets),76 EFX_ETHTOOL_UINT_TXQ_STAT(cb_packets),77 EFX_ETHTOOL_ATOMIC_NIC_ERROR_STAT(rx_reset),78 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_tobe_disc),79 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_ip_hdr_chksum_err),80 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_tcp_udp_chksum_err),81 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_inner_ip_hdr_chksum_err),82 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_inner_tcp_udp_chksum_err),83 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_outer_ip_hdr_chksum_err),84 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_outer_tcp_udp_chksum_err),85 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_eth_crc_err),86 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_mcast_mismatch),87 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_frm_trunc),88 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_merge_events),89 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_merge_packets),90 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_xdp_drops),91 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_xdp_bad_drops),92 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_xdp_tx),93 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_xdp_redirect),94 EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_mport_bad),95#ifdef CONFIG_RFS_ACCEL96 EFX_ETHTOOL_UINT_CHANNEL_STAT_NO_N(rfs_filter_count),97 EFX_ETHTOOL_UINT_CHANNEL_STAT(rfs_succeeded),98 EFX_ETHTOOL_UINT_CHANNEL_STAT(rfs_failed),99#endif100};101 102#define EFX_ETHTOOL_SW_STAT_COUNT ARRAY_SIZE(efx_sw_stat_desc)103 104void efx_ethtool_get_drvinfo(struct net_device *net_dev,105 struct ethtool_drvinfo *info)106{107 struct efx_nic *efx = efx_netdev_priv(net_dev);108 109 strscpy(info->driver, KBUILD_MODNAME, sizeof(info->driver));110 efx_mcdi_print_fwver(efx, info->fw_version,111 sizeof(info->fw_version));112 strscpy(info->bus_info, pci_name(efx->pci_dev), sizeof(info->bus_info));113}114 115u32 efx_ethtool_get_msglevel(struct net_device *net_dev)116{117 struct efx_nic *efx = efx_netdev_priv(net_dev);118 119 return efx->msg_enable;120}121 122void efx_ethtool_set_msglevel(struct net_device *net_dev, u32 msg_enable)123{124 struct efx_nic *efx = efx_netdev_priv(net_dev);125 126 efx->msg_enable = msg_enable;127}128 129void efx_ethtool_self_test(struct net_device *net_dev,130 struct ethtool_test *test, u64 *data)131{132 struct efx_nic *efx = efx_netdev_priv(net_dev);133 struct efx_self_tests *efx_tests;134 bool already_up;135 int rc = -ENOMEM;136 137 efx_tests = kzalloc(sizeof(*efx_tests), GFP_KERNEL);138 if (!efx_tests)139 goto fail;140 141 if (!efx_net_active(efx->state)) {142 rc = -EBUSY;143 goto out;144 }145 146 netif_info(efx, drv, efx->net_dev, "starting %sline testing\n",147 (test->flags & ETH_TEST_FL_OFFLINE) ? "off" : "on");148 149 /* We need rx buffers and interrupts. */150 already_up = (efx->net_dev->flags & IFF_UP);151 if (!already_up) {152 rc = dev_open(efx->net_dev, NULL);153 if (rc) {154 netif_err(efx, drv, efx->net_dev,155 "failed opening device.\n");156 goto out;157 }158 }159 160 rc = efx_selftest(efx, efx_tests, test->flags);161 162 if (!already_up)163 dev_close(efx->net_dev);164 165 netif_info(efx, drv, efx->net_dev, "%s %sline self-tests\n",166 rc == 0 ? "passed" : "failed",167 (test->flags & ETH_TEST_FL_OFFLINE) ? "off" : "on");168 169out:170 efx_ethtool_fill_self_tests(efx, efx_tests, NULL, data);171 kfree(efx_tests);172fail:173 if (rc)174 test->flags |= ETH_TEST_FL_FAILED;175}176 177void efx_ethtool_get_pauseparam(struct net_device *net_dev,178 struct ethtool_pauseparam *pause)179{180 struct efx_nic *efx = efx_netdev_priv(net_dev);181 182 pause->rx_pause = !!(efx->wanted_fc & EFX_FC_RX);183 pause->tx_pause = !!(efx->wanted_fc & EFX_FC_TX);184 pause->autoneg = !!(efx->wanted_fc & EFX_FC_AUTO);185}186 187int efx_ethtool_set_pauseparam(struct net_device *net_dev,188 struct ethtool_pauseparam *pause)189{190 struct efx_nic *efx = efx_netdev_priv(net_dev);191 u8 wanted_fc, old_fc;192 u32 old_adv;193 int rc = 0;194 195 mutex_lock(&efx->mac_lock);196 197 wanted_fc = ((pause->rx_pause ? EFX_FC_RX : 0) |198 (pause->tx_pause ? EFX_FC_TX : 0) |199 (pause->autoneg ? EFX_FC_AUTO : 0));200 201 if ((wanted_fc & EFX_FC_TX) && !(wanted_fc & EFX_FC_RX)) {202 netif_dbg(efx, drv, efx->net_dev,203 "Flow control unsupported: tx ON rx OFF\n");204 rc = -EINVAL;205 goto out;206 }207 208 if ((wanted_fc & EFX_FC_AUTO) && !efx->link_advertising[0]) {209 netif_dbg(efx, drv, efx->net_dev,210 "Autonegotiation is disabled\n");211 rc = -EINVAL;212 goto out;213 }214 215 /* Hook for Falcon bug 11482 workaround */216 if (efx->type->prepare_enable_fc_tx &&217 (wanted_fc & EFX_FC_TX) && !(efx->wanted_fc & EFX_FC_TX))218 efx->type->prepare_enable_fc_tx(efx);219 220 old_adv = efx->link_advertising[0];221 old_fc = efx->wanted_fc;222 efx_link_set_wanted_fc(efx, wanted_fc);223 if (efx->link_advertising[0] != old_adv ||224 (efx->wanted_fc ^ old_fc) & EFX_FC_AUTO) {225 rc = efx_mcdi_port_reconfigure(efx);226 if (rc) {227 netif_err(efx, drv, efx->net_dev,228 "Unable to advertise requested flow "229 "control setting\n");230 goto out;231 }232 }233 234 /* Reconfigure the MAC. The PHY *may* generate a link state change event235 * if the user just changed the advertised capabilities, but there's no236 * harm doing this twice */237 efx_mac_reconfigure(efx, false);238 239out:240 mutex_unlock(&efx->mac_lock);241 242 return rc;243}244 245/**246 * efx_fill_test - fill in an individual self-test entry247 * @test_index: Index of the test248 * @strings: Ethtool strings, or %NULL249 * @data: Ethtool test results, or %NULL250 * @test: Pointer to test result (used only if data != %NULL)251 * @unit_format: Unit name format (e.g. "chan\%d")252 * @unit_id: Unit id (e.g. 0 for "chan0")253 * @test_format: Test name format (e.g. "loopback.\%s.tx.sent")254 * @test_id: Test id (e.g. "PHYXS" for "loopback.PHYXS.tx_sent")255 *256 * Fill in an individual self-test entry.257 */258static void efx_fill_test(unsigned int test_index, u8 *strings, u64 *data,259 int *test, const char *unit_format, int unit_id,260 const char *test_format, const char *test_id)261{262 char unit_str[ETH_GSTRING_LEN], test_str[ETH_GSTRING_LEN];263 264 /* Fill data value, if applicable */265 if (data)266 data[test_index] = *test;267 268 /* Fill string, if applicable */269 if (strings) {270 if (strchr(unit_format, '%'))271 snprintf(unit_str, sizeof(unit_str),272 unit_format, unit_id);273 else274 strcpy(unit_str, unit_format);275 snprintf(test_str, sizeof(test_str), test_format, test_id);276 snprintf(strings + test_index * ETH_GSTRING_LEN,277 ETH_GSTRING_LEN,278 "%-6s %-24s", unit_str, test_str);279 }280}281 282#define EFX_CHANNEL_NAME(_channel) "chan%d", _channel->channel283#define EFX_TX_QUEUE_NAME(_tx_queue) "txq%d", _tx_queue->label284#define EFX_LOOPBACK_NAME(_mode, _counter) \285 "loopback.%s." _counter, STRING_TABLE_LOOKUP(_mode, efx_loopback_mode)286 287/**288 * efx_fill_loopback_test - fill in a block of loopback self-test entries289 * @efx: Efx NIC290 * @lb_tests: Efx loopback self-test results structure291 * @mode: Loopback test mode292 * @test_index: Starting index of the test293 * @strings: Ethtool strings, or %NULL294 * @data: Ethtool test results, or %NULL295 *296 * Fill in a block of loopback self-test entries. Return new test297 * index.298 */299static int efx_fill_loopback_test(struct efx_nic *efx,300 struct efx_loopback_self_tests *lb_tests,301 enum efx_loopback_mode mode,302 unsigned int test_index,303 u8 *strings, u64 *data)304{305 struct efx_channel *channel =306 efx_get_channel(efx, efx->tx_channel_offset);307 struct efx_tx_queue *tx_queue;308 309 efx_for_each_channel_tx_queue(tx_queue, channel) {310 efx_fill_test(test_index++, strings, data,311 &lb_tests->tx_sent[tx_queue->label],312 EFX_TX_QUEUE_NAME(tx_queue),313 EFX_LOOPBACK_NAME(mode, "tx_sent"));314 efx_fill_test(test_index++, strings, data,315 &lb_tests->tx_done[tx_queue->label],316 EFX_TX_QUEUE_NAME(tx_queue),317 EFX_LOOPBACK_NAME(mode, "tx_done"));318 }319 efx_fill_test(test_index++, strings, data,320 &lb_tests->rx_good,321 "rx", 0,322 EFX_LOOPBACK_NAME(mode, "rx_good"));323 efx_fill_test(test_index++, strings, data,324 &lb_tests->rx_bad,325 "rx", 0,326 EFX_LOOPBACK_NAME(mode, "rx_bad"));327 328 return test_index;329}330 331/**332 * efx_ethtool_fill_self_tests - get self-test details333 * @efx: Efx NIC334 * @tests: Efx self-test results structure, or %NULL335 * @strings: Ethtool strings, or %NULL336 * @data: Ethtool test results, or %NULL337 *338 * Get self-test number of strings, strings, and/or test results.339 * Return number of strings (== number of test results).340 *341 * The reason for merging these three functions is to make sure that342 * they can never be inconsistent.343 */344int efx_ethtool_fill_self_tests(struct efx_nic *efx,345 struct efx_self_tests *tests,346 u8 *strings, u64 *data)347{348 struct efx_channel *channel;349 unsigned int n = 0, i;350 enum efx_loopback_mode mode;351 352 efx_fill_test(n++, strings, data, &tests->phy_alive,353 "phy", 0, "alive", NULL);354 efx_fill_test(n++, strings, data, &tests->nvram,355 "core", 0, "nvram", NULL);356 efx_fill_test(n++, strings, data, &tests->interrupt,357 "core", 0, "interrupt", NULL);358 359 /* Event queues */360 efx_for_each_channel(channel, efx) {361 efx_fill_test(n++, strings, data,362 &tests->eventq_dma[channel->channel],363 EFX_CHANNEL_NAME(channel),364 "eventq.dma", NULL);365 efx_fill_test(n++, strings, data,366 &tests->eventq_int[channel->channel],367 EFX_CHANNEL_NAME(channel),368 "eventq.int", NULL);369 }370 371 efx_fill_test(n++, strings, data, &tests->memory,372 "core", 0, "memory", NULL);373 efx_fill_test(n++, strings, data, &tests->registers,374 "core", 0, "registers", NULL);375 376 for (i = 0; true; ++i) {377 const char *name;378 379 EFX_WARN_ON_PARANOID(i >= EFX_MAX_PHY_TESTS);380 name = efx_mcdi_phy_test_name(efx, i);381 if (name == NULL)382 break;383 384 efx_fill_test(n++, strings, data, &tests->phy_ext[i], "phy", 0, name, NULL);385 }386 387 /* Loopback tests */388 for (mode = LOOPBACK_NONE; mode <= LOOPBACK_TEST_MAX; mode++) {389 if (!(efx->loopback_modes & (1 << mode)))390 continue;391 n = efx_fill_loopback_test(efx,392 &tests->loopback[mode], mode, n,393 strings, data);394 }395 396 return n;397}398 399static size_t efx_describe_per_queue_stats(struct efx_nic *efx, u8 *strings)400{401 size_t n_stats = 0;402 struct efx_channel *channel;403 404 efx_for_each_channel(channel, efx) {405 if (efx_channel_has_tx_queues(channel)) {406 n_stats++;407 if (strings != NULL) {408 snprintf(strings, ETH_GSTRING_LEN,409 "tx-%u.tx_packets",410 channel->tx_queue[0].queue /411 EFX_MAX_TXQ_PER_CHANNEL);412 413 strings += ETH_GSTRING_LEN;414 }415 }416 }417 efx_for_each_channel(channel, efx) {418 if (efx_channel_has_rx_queue(channel)) {419 n_stats++;420 if (strings != NULL) {421 snprintf(strings, ETH_GSTRING_LEN,422 "rx-%d.rx_packets", channel->channel);423 strings += ETH_GSTRING_LEN;424 }425 }426 }427 if (efx->xdp_tx_queue_count && efx->xdp_tx_queues) {428 unsigned short xdp;429 430 for (xdp = 0; xdp < efx->xdp_tx_queue_count; xdp++) {431 n_stats++;432 if (strings) {433 snprintf(strings, ETH_GSTRING_LEN,434 "tx-xdp-cpu-%hu.tx_packets", xdp);435 strings += ETH_GSTRING_LEN;436 }437 }438 }439 440 return n_stats;441}442 443int efx_ethtool_get_sset_count(struct net_device *net_dev, int string_set)444{445 struct efx_nic *efx = efx_netdev_priv(net_dev);446 447 switch (string_set) {448 case ETH_SS_STATS:449 return efx->type->describe_stats(efx, NULL) +450 EFX_ETHTOOL_SW_STAT_COUNT +451 efx_describe_per_queue_stats(efx, NULL) +452 efx_ptp_describe_stats(efx, NULL);453 case ETH_SS_TEST:454 return efx_ethtool_fill_self_tests(efx, NULL, NULL, NULL);455 default:456 return -EINVAL;457 }458}459 460void efx_ethtool_get_strings(struct net_device *net_dev,461 u32 string_set, u8 *strings)462{463 struct efx_nic *efx = efx_netdev_priv(net_dev);464 int i;465 466 switch (string_set) {467 case ETH_SS_STATS:468 strings += (efx->type->describe_stats(efx, strings) *469 ETH_GSTRING_LEN);470 for (i = 0; i < EFX_ETHTOOL_SW_STAT_COUNT; i++)471 strscpy(strings + i * ETH_GSTRING_LEN,472 efx_sw_stat_desc[i].name, ETH_GSTRING_LEN);473 strings += EFX_ETHTOOL_SW_STAT_COUNT * ETH_GSTRING_LEN;474 strings += (efx_describe_per_queue_stats(efx, strings) *475 ETH_GSTRING_LEN);476 efx_ptp_describe_stats(efx, strings);477 break;478 case ETH_SS_TEST:479 efx_ethtool_fill_self_tests(efx, NULL, strings, NULL);480 break;481 default:482 /* No other string sets */483 break;484 }485}486 487void efx_ethtool_get_stats(struct net_device *net_dev,488 struct ethtool_stats *stats,489 u64 *data)490{491 struct efx_nic *efx = efx_netdev_priv(net_dev);492 const struct efx_sw_stat_desc *stat;493 struct efx_channel *channel;494 struct efx_tx_queue *tx_queue;495 struct efx_rx_queue *rx_queue;496 int i;497 498 spin_lock_bh(&efx->stats_lock);499 500 /* Get NIC statistics */501 data += efx->type->update_stats(efx, data, NULL);502 503 /* Get software statistics */504 for (i = 0; i < EFX_ETHTOOL_SW_STAT_COUNT; i++) {505 stat = &efx_sw_stat_desc[i];506 switch (stat->source) {507 case EFX_ETHTOOL_STAT_SOURCE_nic:508 data[i] = stat->get_stat((void *)efx + stat->offset);509 break;510 case EFX_ETHTOOL_STAT_SOURCE_channel:511 data[i] = 0;512 efx_for_each_channel(channel, efx)513 data[i] += stat->get_stat((void *)channel +514 stat->offset);515 break;516 case EFX_ETHTOOL_STAT_SOURCE_tx_queue:517 data[i] = 0;518 efx_for_each_channel(channel, efx) {519 efx_for_each_channel_tx_queue(tx_queue, channel)520 data[i] +=521 stat->get_stat((void *)tx_queue522 + stat->offset);523 }524 break;525 }526 }527 data += EFX_ETHTOOL_SW_STAT_COUNT;528 529 spin_unlock_bh(&efx->stats_lock);530 531 efx_for_each_channel(channel, efx) {532 if (efx_channel_has_tx_queues(channel)) {533 *data = 0;534 efx_for_each_channel_tx_queue(tx_queue, channel) {535 *data += tx_queue->tx_packets;536 }537 data++;538 }539 }540 efx_for_each_channel(channel, efx) {541 if (efx_channel_has_rx_queue(channel)) {542 *data = 0;543 efx_for_each_channel_rx_queue(rx_queue, channel) {544 *data += rx_queue->rx_packets;545 }546 data++;547 }548 }549 if (efx->xdp_tx_queue_count && efx->xdp_tx_queues) {550 int xdp;551 552 for (xdp = 0; xdp < efx->xdp_tx_queue_count; xdp++) {553 data[0] = efx->xdp_tx_queues[xdp]->tx_packets;554 data++;555 }556 }557 558 efx_ptp_update_stats(efx, data);559}560 561/* This must be called with rtnl_lock held. */562int efx_ethtool_get_link_ksettings(struct net_device *net_dev,563 struct ethtool_link_ksettings *cmd)564{565 struct efx_nic *efx = efx_netdev_priv(net_dev);566 struct efx_link_state *link_state = &efx->link_state;567 568 mutex_lock(&efx->mac_lock);569 efx_mcdi_phy_get_link_ksettings(efx, cmd);570 mutex_unlock(&efx->mac_lock);571 572 /* Both MACs support pause frames (bidirectional and respond-only) */573 ethtool_link_ksettings_add_link_mode(cmd, supported, Pause);574 ethtool_link_ksettings_add_link_mode(cmd, supported, Asym_Pause);575 576 if (LOOPBACK_INTERNAL(efx)) {577 cmd->base.speed = link_state->speed;578 cmd->base.duplex = link_state->fd ? DUPLEX_FULL : DUPLEX_HALF;579 }580 581 return 0;582}583 584/* This must be called with rtnl_lock held. */585int efx_ethtool_set_link_ksettings(struct net_device *net_dev,586 const struct ethtool_link_ksettings *cmd)587{588 struct efx_nic *efx = efx_netdev_priv(net_dev);589 int rc;590 591 /* GMAC does not support 1000Mbps HD */592 if ((cmd->base.speed == SPEED_1000) &&593 (cmd->base.duplex != DUPLEX_FULL)) {594 netif_dbg(efx, drv, efx->net_dev,595 "rejecting unsupported 1000Mbps HD setting\n");596 return -EINVAL;597 }598 599 mutex_lock(&efx->mac_lock);600 rc = efx_mcdi_phy_set_link_ksettings(efx, cmd);601 mutex_unlock(&efx->mac_lock);602 return rc;603}604 605int efx_ethtool_get_fecparam(struct net_device *net_dev,606 struct ethtool_fecparam *fecparam)607{608 struct efx_nic *efx = efx_netdev_priv(net_dev);609 int rc;610 611 mutex_lock(&efx->mac_lock);612 rc = efx_mcdi_phy_get_fecparam(efx, fecparam);613 mutex_unlock(&efx->mac_lock);614 615 return rc;616}617 618int efx_ethtool_set_fecparam(struct net_device *net_dev,619 struct ethtool_fecparam *fecparam)620{621 struct efx_nic *efx = efx_netdev_priv(net_dev);622 int rc;623 624 mutex_lock(&efx->mac_lock);625 rc = efx_mcdi_phy_set_fecparam(efx, fecparam);626 mutex_unlock(&efx->mac_lock);627 628 return rc;629}630 631/* MAC address mask including only I/G bit */632static const u8 mac_addr_ig_mask[ETH_ALEN] __aligned(2) = {0x01, 0, 0, 0, 0, 0};633 634#define IP4_ADDR_FULL_MASK ((__force __be32)~0)635#define IP_PROTO_FULL_MASK 0xFF636#define PORT_FULL_MASK ((__force __be16)~0)637#define ETHER_TYPE_FULL_MASK ((__force __be16)~0)638 639static inline void ip6_fill_mask(__be32 *mask)640{641 mask[0] = mask[1] = mask[2] = mask[3] = ~(__be32)0;642}643 644static int efx_ethtool_get_class_rule(struct efx_nic *efx,645 struct ethtool_rx_flow_spec *rule,646 u32 *rss_context)647{648 struct ethtool_tcpip4_spec *ip_entry = &rule->h_u.tcp_ip4_spec;649 struct ethtool_tcpip4_spec *ip_mask = &rule->m_u.tcp_ip4_spec;650 struct ethtool_usrip4_spec *uip_entry = &rule->h_u.usr_ip4_spec;651 struct ethtool_usrip4_spec *uip_mask = &rule->m_u.usr_ip4_spec;652 struct ethtool_tcpip6_spec *ip6_entry = &rule->h_u.tcp_ip6_spec;653 struct ethtool_tcpip6_spec *ip6_mask = &rule->m_u.tcp_ip6_spec;654 struct ethtool_usrip6_spec *uip6_entry = &rule->h_u.usr_ip6_spec;655 struct ethtool_usrip6_spec *uip6_mask = &rule->m_u.usr_ip6_spec;656 struct ethhdr *mac_entry = &rule->h_u.ether_spec;657 struct ethhdr *mac_mask = &rule->m_u.ether_spec;658 struct efx_filter_spec spec;659 int rc;660 661 rc = efx_filter_get_filter_safe(efx, EFX_FILTER_PRI_MANUAL,662 rule->location, &spec);663 if (rc)664 return rc;665 666 if (spec.dmaq_id == EFX_FILTER_RX_DMAQ_ID_DROP)667 rule->ring_cookie = RX_CLS_FLOW_DISC;668 else669 rule->ring_cookie = spec.dmaq_id;670 671 if ((spec.match_flags & EFX_FILTER_MATCH_ETHER_TYPE) &&672 spec.ether_type == htons(ETH_P_IP) &&673 (spec.match_flags & EFX_FILTER_MATCH_IP_PROTO) &&674 (spec.ip_proto == IPPROTO_TCP || spec.ip_proto == IPPROTO_UDP) &&675 !(spec.match_flags &676 ~(EFX_FILTER_MATCH_ETHER_TYPE | EFX_FILTER_MATCH_OUTER_VID |677 EFX_FILTER_MATCH_LOC_HOST | EFX_FILTER_MATCH_REM_HOST |678 EFX_FILTER_MATCH_IP_PROTO |679 EFX_FILTER_MATCH_LOC_PORT | EFX_FILTER_MATCH_REM_PORT))) {680 rule->flow_type = ((spec.ip_proto == IPPROTO_TCP) ?681 TCP_V4_FLOW : UDP_V4_FLOW);682 if (spec.match_flags & EFX_FILTER_MATCH_LOC_HOST) {683 ip_entry->ip4dst = spec.loc_host[0];684 ip_mask->ip4dst = IP4_ADDR_FULL_MASK;685 }686 if (spec.match_flags & EFX_FILTER_MATCH_REM_HOST) {687 ip_entry->ip4src = spec.rem_host[0];688 ip_mask->ip4src = IP4_ADDR_FULL_MASK;689 }690 if (spec.match_flags & EFX_FILTER_MATCH_LOC_PORT) {691 ip_entry->pdst = spec.loc_port;692 ip_mask->pdst = PORT_FULL_MASK;693 }694 if (spec.match_flags & EFX_FILTER_MATCH_REM_PORT) {695 ip_entry->psrc = spec.rem_port;696 ip_mask->psrc = PORT_FULL_MASK;697 }698 } else if ((spec.match_flags & EFX_FILTER_MATCH_ETHER_TYPE) &&699 spec.ether_type == htons(ETH_P_IPV6) &&700 (spec.match_flags & EFX_FILTER_MATCH_IP_PROTO) &&701 (spec.ip_proto == IPPROTO_TCP || spec.ip_proto == IPPROTO_UDP) &&702 !(spec.match_flags &703 ~(EFX_FILTER_MATCH_ETHER_TYPE | EFX_FILTER_MATCH_OUTER_VID |704 EFX_FILTER_MATCH_LOC_HOST | EFX_FILTER_MATCH_REM_HOST |705 EFX_FILTER_MATCH_IP_PROTO |706 EFX_FILTER_MATCH_LOC_PORT | EFX_FILTER_MATCH_REM_PORT))) {707 rule->flow_type = ((spec.ip_proto == IPPROTO_TCP) ?708 TCP_V6_FLOW : UDP_V6_FLOW);709 if (spec.match_flags & EFX_FILTER_MATCH_LOC_HOST) {710 memcpy(ip6_entry->ip6dst, spec.loc_host,711 sizeof(ip6_entry->ip6dst));712 ip6_fill_mask(ip6_mask->ip6dst);713 }714 if (spec.match_flags & EFX_FILTER_MATCH_REM_HOST) {715 memcpy(ip6_entry->ip6src, spec.rem_host,716 sizeof(ip6_entry->ip6src));717 ip6_fill_mask(ip6_mask->ip6src);718 }719 if (spec.match_flags & EFX_FILTER_MATCH_LOC_PORT) {720 ip6_entry->pdst = spec.loc_port;721 ip6_mask->pdst = PORT_FULL_MASK;722 }723 if (spec.match_flags & EFX_FILTER_MATCH_REM_PORT) {724 ip6_entry->psrc = spec.rem_port;725 ip6_mask->psrc = PORT_FULL_MASK;726 }727 } else if (!(spec.match_flags &728 ~(EFX_FILTER_MATCH_LOC_MAC | EFX_FILTER_MATCH_LOC_MAC_IG |729 EFX_FILTER_MATCH_REM_MAC | EFX_FILTER_MATCH_ETHER_TYPE |730 EFX_FILTER_MATCH_OUTER_VID))) {731 rule->flow_type = ETHER_FLOW;732 if (spec.match_flags &733 (EFX_FILTER_MATCH_LOC_MAC | EFX_FILTER_MATCH_LOC_MAC_IG)) {734 ether_addr_copy(mac_entry->h_dest, spec.loc_mac);735 if (spec.match_flags & EFX_FILTER_MATCH_LOC_MAC)736 eth_broadcast_addr(mac_mask->h_dest);737 else738 ether_addr_copy(mac_mask->h_dest,739 mac_addr_ig_mask);740 }741 if (spec.match_flags & EFX_FILTER_MATCH_REM_MAC) {742 ether_addr_copy(mac_entry->h_source, spec.rem_mac);743 eth_broadcast_addr(mac_mask->h_source);744 }745 if (spec.match_flags & EFX_FILTER_MATCH_ETHER_TYPE) {746 mac_entry->h_proto = spec.ether_type;747 mac_mask->h_proto = ETHER_TYPE_FULL_MASK;748 }749 } else if (spec.match_flags & EFX_FILTER_MATCH_ETHER_TYPE &&750 spec.ether_type == htons(ETH_P_IP) &&751 !(spec.match_flags &752 ~(EFX_FILTER_MATCH_ETHER_TYPE | EFX_FILTER_MATCH_OUTER_VID |753 EFX_FILTER_MATCH_LOC_HOST | EFX_FILTER_MATCH_REM_HOST |754 EFX_FILTER_MATCH_IP_PROTO))) {755 rule->flow_type = IPV4_USER_FLOW;756 uip_entry->ip_ver = ETH_RX_NFC_IP4;757 if (spec.match_flags & EFX_FILTER_MATCH_IP_PROTO) {758 uip_mask->proto = IP_PROTO_FULL_MASK;759 uip_entry->proto = spec.ip_proto;760 }761 if (spec.match_flags & EFX_FILTER_MATCH_LOC_HOST) {762 uip_entry->ip4dst = spec.loc_host[0];763 uip_mask->ip4dst = IP4_ADDR_FULL_MASK;764 }765 if (spec.match_flags & EFX_FILTER_MATCH_REM_HOST) {766 uip_entry->ip4src = spec.rem_host[0];767 uip_mask->ip4src = IP4_ADDR_FULL_MASK;768 }769 } else if (spec.match_flags & EFX_FILTER_MATCH_ETHER_TYPE &&770 spec.ether_type == htons(ETH_P_IPV6) &&771 !(spec.match_flags &772 ~(EFX_FILTER_MATCH_ETHER_TYPE | EFX_FILTER_MATCH_OUTER_VID |773 EFX_FILTER_MATCH_LOC_HOST | EFX_FILTER_MATCH_REM_HOST |774 EFX_FILTER_MATCH_IP_PROTO))) {775 rule->flow_type = IPV6_USER_FLOW;776 if (spec.match_flags & EFX_FILTER_MATCH_IP_PROTO) {777 uip6_mask->l4_proto = IP_PROTO_FULL_MASK;778 uip6_entry->l4_proto = spec.ip_proto;779 }780 if (spec.match_flags & EFX_FILTER_MATCH_LOC_HOST) {781 memcpy(uip6_entry->ip6dst, spec.loc_host,782 sizeof(uip6_entry->ip6dst));783 ip6_fill_mask(uip6_mask->ip6dst);784 }785 if (spec.match_flags & EFX_FILTER_MATCH_REM_HOST) {786 memcpy(uip6_entry->ip6src, spec.rem_host,787 sizeof(uip6_entry->ip6src));788 ip6_fill_mask(uip6_mask->ip6src);789 }790 } else {791 /* The above should handle all filters that we insert */792 WARN_ON(1);793 return -EINVAL;794 }795 796 if (spec.match_flags & EFX_FILTER_MATCH_OUTER_VID) {797 rule->flow_type |= FLOW_EXT;798 rule->h_ext.vlan_tci = spec.outer_vid;799 rule->m_ext.vlan_tci = htons(0xfff);800 }801 802 if (spec.flags & EFX_FILTER_FLAG_RX_RSS) {803 rule->flow_type |= FLOW_RSS;804 *rss_context = spec.rss_context;805 }806 807 return rc;808}809 810int efx_ethtool_get_rxnfc(struct net_device *net_dev,811 struct ethtool_rxnfc *info, u32 *rule_locs)812{813 struct efx_nic *efx = efx_netdev_priv(net_dev);814 u32 rss_context = 0;815 s32 rc = 0;816 817 switch (info->cmd) {818 case ETHTOOL_GRXRINGS:819 info->data = efx->n_rx_channels;820 return 0;821 822 case ETHTOOL_GRXFH: {823 struct efx_rss_context_priv *ctx = &efx->rss_context.priv;824 __u64 data;825 826 mutex_lock(&net_dev->ethtool->rss_lock);827 if (info->flow_type & FLOW_RSS && info->rss_context) {828 ctx = efx_find_rss_context_entry(efx, info->rss_context);829 if (!ctx) {830 rc = -ENOENT;831 goto out_unlock;832 }833 }834 835 data = 0;836 if (!efx_rss_active(ctx)) /* No RSS */837 goto out_setdata_unlock;838 839 switch (info->flow_type & ~FLOW_RSS) {840 case UDP_V4_FLOW:841 case UDP_V6_FLOW:842 if (ctx->rx_hash_udp_4tuple)843 data = (RXH_L4_B_0_1 | RXH_L4_B_2_3 |844 RXH_IP_SRC | RXH_IP_DST);845 else846 data = RXH_IP_SRC | RXH_IP_DST;847 break;848 case TCP_V4_FLOW:849 case TCP_V6_FLOW:850 data = (RXH_L4_B_0_1 | RXH_L4_B_2_3 |851 RXH_IP_SRC | RXH_IP_DST);852 break;853 case SCTP_V4_FLOW:854 case SCTP_V6_FLOW:855 case AH_ESP_V4_FLOW:856 case AH_ESP_V6_FLOW:857 case IPV4_FLOW:858 case IPV6_FLOW:859 data = RXH_IP_SRC | RXH_IP_DST;860 break;861 default:862 break;863 }864out_setdata_unlock:865 info->data = data;866out_unlock:867 mutex_unlock(&net_dev->ethtool->rss_lock);868 return rc;869 }870 871 case ETHTOOL_GRXCLSRLCNT:872 info->data = efx_filter_get_rx_id_limit(efx);873 if (info->data == 0)874 return -EOPNOTSUPP;875 info->data |= RX_CLS_LOC_SPECIAL;876 info->rule_cnt =877 efx_filter_count_rx_used(efx, EFX_FILTER_PRI_MANUAL);878 return 0;879 880 case ETHTOOL_GRXCLSRULE:881 if (efx_filter_get_rx_id_limit(efx) == 0)882 return -EOPNOTSUPP;883 rc = efx_ethtool_get_class_rule(efx, &info->fs, &rss_context);884 if (rc < 0)885 return rc;886 if (info->fs.flow_type & FLOW_RSS)887 info->rss_context = rss_context;888 return 0;889 890 case ETHTOOL_GRXCLSRLALL:891 info->data = efx_filter_get_rx_id_limit(efx);892 if (info->data == 0)893 return -EOPNOTSUPP;894 rc = efx_filter_get_rx_ids(efx, EFX_FILTER_PRI_MANUAL,895 rule_locs, info->rule_cnt);896 if (rc < 0)897 return rc;898 info->rule_cnt = rc;899 return 0;900 901 default:902 return -EOPNOTSUPP;903 }904}905 906static inline bool ip6_mask_is_full(__be32 mask[4])907{908 return !~(mask[0] & mask[1] & mask[2] & mask[3]);909}910 911static inline bool ip6_mask_is_empty(__be32 mask[4])912{913 return !(mask[0] | mask[1] | mask[2] | mask[3]);914}915 916static int efx_ethtool_set_class_rule(struct efx_nic *efx,917 struct ethtool_rx_flow_spec *rule,918 u32 rss_context)919{920 struct ethtool_tcpip4_spec *ip_entry = &rule->h_u.tcp_ip4_spec;921 struct ethtool_tcpip4_spec *ip_mask = &rule->m_u.tcp_ip4_spec;922 struct ethtool_usrip4_spec *uip_entry = &rule->h_u.usr_ip4_spec;923 struct ethtool_usrip4_spec *uip_mask = &rule->m_u.usr_ip4_spec;924 struct ethtool_tcpip6_spec *ip6_entry = &rule->h_u.tcp_ip6_spec;925 struct ethtool_tcpip6_spec *ip6_mask = &rule->m_u.tcp_ip6_spec;926 struct ethtool_usrip6_spec *uip6_entry = &rule->h_u.usr_ip6_spec;927 struct ethtool_usrip6_spec *uip6_mask = &rule->m_u.usr_ip6_spec;928 u32 flow_type = rule->flow_type & ~(FLOW_EXT | FLOW_RSS);929 struct ethhdr *mac_entry = &rule->h_u.ether_spec;930 struct ethhdr *mac_mask = &rule->m_u.ether_spec;931 enum efx_filter_flags flags = 0;932 struct efx_filter_spec spec;933 int rc;934 935 /* Check that user wants us to choose the location */936 if (rule->location != RX_CLS_LOC_ANY)937 return -EINVAL;938 939 /* Range-check ring_cookie */940 if (rule->ring_cookie >= efx->n_rx_channels &&941 rule->ring_cookie != RX_CLS_FLOW_DISC)942 return -EINVAL;943 944 /* Check for unsupported extensions */945 if ((rule->flow_type & FLOW_EXT) &&946 (rule->m_ext.vlan_etype || rule->m_ext.data[0] ||947 rule->m_ext.data[1]))948 return -EINVAL;949 950 if (efx->rx_scatter)951 flags |= EFX_FILTER_FLAG_RX_SCATTER;952 if (rule->flow_type & FLOW_RSS)953 flags |= EFX_FILTER_FLAG_RX_RSS;954 955 efx_filter_init_rx(&spec, EFX_FILTER_PRI_MANUAL, flags,956 (rule->ring_cookie == RX_CLS_FLOW_DISC) ?957 EFX_FILTER_RX_DMAQ_ID_DROP : rule->ring_cookie);958 959 if (rule->flow_type & FLOW_RSS)960 spec.rss_context = rss_context;961 962 switch (flow_type) {963 case TCP_V4_FLOW:964 case UDP_V4_FLOW:965 spec.match_flags = (EFX_FILTER_MATCH_ETHER_TYPE |966 EFX_FILTER_MATCH_IP_PROTO);967 spec.ether_type = htons(ETH_P_IP);968 spec.ip_proto = flow_type == TCP_V4_FLOW ? IPPROTO_TCP969 : IPPROTO_UDP;970 if (ip_mask->ip4dst) {971 if (ip_mask->ip4dst != IP4_ADDR_FULL_MASK)972 return -EINVAL;973 spec.match_flags |= EFX_FILTER_MATCH_LOC_HOST;974 spec.loc_host[0] = ip_entry->ip4dst;975 }976 if (ip_mask->ip4src) {977 if (ip_mask->ip4src != IP4_ADDR_FULL_MASK)978 return -EINVAL;979 spec.match_flags |= EFX_FILTER_MATCH_REM_HOST;980 spec.rem_host[0] = ip_entry->ip4src;981 }982 if (ip_mask->pdst) {983 if (ip_mask->pdst != PORT_FULL_MASK)984 return -EINVAL;985 spec.match_flags |= EFX_FILTER_MATCH_LOC_PORT;986 spec.loc_port = ip_entry->pdst;987 }988 if (ip_mask->psrc) {989 if (ip_mask->psrc != PORT_FULL_MASK)990 return -EINVAL;991 spec.match_flags |= EFX_FILTER_MATCH_REM_PORT;992 spec.rem_port = ip_entry->psrc;993 }994 if (ip_mask->tos)995 return -EINVAL;996 break;997 998 case TCP_V6_FLOW:999 case UDP_V6_FLOW:1000 spec.match_flags = (EFX_FILTER_MATCH_ETHER_TYPE |1001 EFX_FILTER_MATCH_IP_PROTO);1002 spec.ether_type = htons(ETH_P_IPV6);1003 spec.ip_proto = flow_type == TCP_V6_FLOW ? IPPROTO_TCP1004 : IPPROTO_UDP;1005 if (!ip6_mask_is_empty(ip6_mask->ip6dst)) {1006 if (!ip6_mask_is_full(ip6_mask->ip6dst))1007 return -EINVAL;1008 spec.match_flags |= EFX_FILTER_MATCH_LOC_HOST;1009 memcpy(spec.loc_host, ip6_entry->ip6dst, sizeof(spec.loc_host));1010 }1011 if (!ip6_mask_is_empty(ip6_mask->ip6src)) {1012 if (!ip6_mask_is_full(ip6_mask->ip6src))1013 return -EINVAL;1014 spec.match_flags |= EFX_FILTER_MATCH_REM_HOST;1015 memcpy(spec.rem_host, ip6_entry->ip6src, sizeof(spec.rem_host));1016 }1017 if (ip6_mask->pdst) {1018 if (ip6_mask->pdst != PORT_FULL_MASK)1019 return -EINVAL;1020 spec.match_flags |= EFX_FILTER_MATCH_LOC_PORT;1021 spec.loc_port = ip6_entry->pdst;1022 }1023 if (ip6_mask->psrc) {1024 if (ip6_mask->psrc != PORT_FULL_MASK)1025 return -EINVAL;1026 spec.match_flags |= EFX_FILTER_MATCH_REM_PORT;1027 spec.rem_port = ip6_entry->psrc;1028 }1029 if (ip6_mask->tclass)1030 return -EINVAL;1031 break;1032 1033 case IPV4_USER_FLOW:1034 if (uip_mask->l4_4_bytes || uip_mask->tos || uip_mask->ip_ver ||1035 uip_entry->ip_ver != ETH_RX_NFC_IP4)1036 return -EINVAL;1037 spec.match_flags = EFX_FILTER_MATCH_ETHER_TYPE;1038 spec.ether_type = htons(ETH_P_IP);1039 if (uip_mask->ip4dst) {1040 if (uip_mask->ip4dst != IP4_ADDR_FULL_MASK)1041 return -EINVAL;1042 spec.match_flags |= EFX_FILTER_MATCH_LOC_HOST;1043 spec.loc_host[0] = uip_entry->ip4dst;1044 }1045 if (uip_mask->ip4src) {1046 if (uip_mask->ip4src != IP4_ADDR_FULL_MASK)1047 return -EINVAL;1048 spec.match_flags |= EFX_FILTER_MATCH_REM_HOST;1049 spec.rem_host[0] = uip_entry->ip4src;1050 }1051 if (uip_mask->proto) {1052 if (uip_mask->proto != IP_PROTO_FULL_MASK)1053 return -EINVAL;1054 spec.match_flags |= EFX_FILTER_MATCH_IP_PROTO;1055 spec.ip_proto = uip_entry->proto;1056 }1057 break;1058 1059 case IPV6_USER_FLOW:1060 if (uip6_mask->l4_4_bytes || uip6_mask->tclass)1061 return -EINVAL;1062 spec.match_flags = EFX_FILTER_MATCH_ETHER_TYPE;1063 spec.ether_type = htons(ETH_P_IPV6);1064 if (!ip6_mask_is_empty(uip6_mask->ip6dst)) {1065 if (!ip6_mask_is_full(uip6_mask->ip6dst))1066 return -EINVAL;1067 spec.match_flags |= EFX_FILTER_MATCH_LOC_HOST;1068 memcpy(spec.loc_host, uip6_entry->ip6dst, sizeof(spec.loc_host));1069 }1070 if (!ip6_mask_is_empty(uip6_mask->ip6src)) {1071 if (!ip6_mask_is_full(uip6_mask->ip6src))1072 return -EINVAL;1073 spec.match_flags |= EFX_FILTER_MATCH_REM_HOST;1074 memcpy(spec.rem_host, uip6_entry->ip6src, sizeof(spec.rem_host));1075 }1076 if (uip6_mask->l4_proto) {1077 if (uip6_mask->l4_proto != IP_PROTO_FULL_MASK)1078 return -EINVAL;1079 spec.match_flags |= EFX_FILTER_MATCH_IP_PROTO;1080 spec.ip_proto = uip6_entry->l4_proto;1081 }1082 break;1083 1084 case ETHER_FLOW:1085 if (!is_zero_ether_addr(mac_mask->h_dest)) {1086 if (ether_addr_equal(mac_mask->h_dest,1087 mac_addr_ig_mask))1088 spec.match_flags |= EFX_FILTER_MATCH_LOC_MAC_IG;1089 else if (is_broadcast_ether_addr(mac_mask->h_dest))1090 spec.match_flags |= EFX_FILTER_MATCH_LOC_MAC;1091 else1092 return -EINVAL;1093 ether_addr_copy(spec.loc_mac, mac_entry->h_dest);1094 }1095 if (!is_zero_ether_addr(mac_mask->h_source)) {1096 if (!is_broadcast_ether_addr(mac_mask->h_source))1097 return -EINVAL;1098 spec.match_flags |= EFX_FILTER_MATCH_REM_MAC;1099 ether_addr_copy(spec.rem_mac, mac_entry->h_source);1100 }1101 if (mac_mask->h_proto) {1102 if (mac_mask->h_proto != ETHER_TYPE_FULL_MASK)1103 return -EINVAL;1104 spec.match_flags |= EFX_FILTER_MATCH_ETHER_TYPE;1105 spec.ether_type = mac_entry->h_proto;1106 }1107 break;1108 1109 default:1110 return -EINVAL;1111 }1112 1113 if ((rule->flow_type & FLOW_EXT) && rule->m_ext.vlan_tci) {1114 if (rule->m_ext.vlan_tci != htons(0xfff))1115 return -EINVAL;1116 spec.match_flags |= EFX_FILTER_MATCH_OUTER_VID;1117 spec.outer_vid = rule->h_ext.vlan_tci;1118 }1119 1120 rc = efx_filter_insert_filter(efx, &spec, true);1121 if (rc < 0)1122 return rc;1123 1124 rule->location = rc;1125 return 0;1126}1127 1128int efx_ethtool_set_rxnfc(struct net_device *net_dev,1129 struct ethtool_rxnfc *info)1130{1131 struct efx_nic *efx = efx_netdev_priv(net_dev);1132 1133 if (efx_filter_get_rx_id_limit(efx) == 0)1134 return -EOPNOTSUPP;1135 1136 switch (info->cmd) {1137 case ETHTOOL_SRXCLSRLINS:1138 return efx_ethtool_set_class_rule(efx, &info->fs,1139 info->rss_context);1140 1141 case ETHTOOL_SRXCLSRLDEL:1142 return efx_filter_remove_id_safe(efx, EFX_FILTER_PRI_MANUAL,1143 info->fs.location);1144 1145 default:1146 return -EOPNOTSUPP;1147 }1148}1149 1150u32 efx_ethtool_get_rxfh_indir_size(struct net_device *net_dev)1151{1152 struct efx_nic *efx = efx_netdev_priv(net_dev);1153 1154 if (efx->n_rx_channels == 1)1155 return 0;1156 return ARRAY_SIZE(efx->rss_context.rx_indir_table);1157}1158 1159u32 efx_ethtool_get_rxfh_key_size(struct net_device *net_dev)1160{1161 struct efx_nic *efx = efx_netdev_priv(net_dev);1162 1163 return efx->type->rx_hash_key_size;1164}1165 1166int efx_ethtool_get_rxfh(struct net_device *net_dev,1167 struct ethtool_rxfh_param *rxfh)1168{1169 struct efx_nic *efx = efx_netdev_priv(net_dev);1170 int rc;1171 1172 if (rxfh->rss_context) /* core should never call us for these */1173 return -EINVAL;1174 1175 rc = efx->type->rx_pull_rss_config(efx);1176 if (rc)1177 return rc;1178 1179 rxfh->hfunc = ETH_RSS_HASH_TOP;1180 if (rxfh->indir)1181 memcpy(rxfh->indir, efx->rss_context.rx_indir_table,1182 sizeof(efx->rss_context.rx_indir_table));1183 if (rxfh->key)1184 memcpy(rxfh->key, efx->rss_context.rx_hash_key,1185 efx->type->rx_hash_key_size);1186 return 0;1187}1188 1189int efx_ethtool_modify_rxfh_context(struct net_device *net_dev,1190 struct ethtool_rxfh_context *ctx,1191 const struct ethtool_rxfh_param *rxfh,1192 struct netlink_ext_ack *extack)1193{1194 struct efx_nic *efx = efx_netdev_priv(net_dev);1195 struct efx_rss_context_priv *priv;1196 const u32 *indir = rxfh->indir;1197 const u8 *key = rxfh->key;1198 1199 if (!efx->type->rx_push_rss_context_config) {1200 NL_SET_ERR_MSG_MOD(extack,1201 "NIC type does not support custom contexts");1202 return -EOPNOTSUPP;1203 }1204 /* Hash function is Toeplitz, cannot be changed */1205 if (rxfh->hfunc != ETH_RSS_HASH_NO_CHANGE &&1206 rxfh->hfunc != ETH_RSS_HASH_TOP) {1207 NL_SET_ERR_MSG_MOD(extack, "Only Toeplitz hash is supported");1208 return -EOPNOTSUPP;1209 }1210 1211 priv = ethtool_rxfh_context_priv(ctx);1212 1213 if (!key)1214 key = ethtool_rxfh_context_key(ctx);1215 if (!indir)1216 indir = ethtool_rxfh_context_indir(ctx);1217 1218 return efx->type->rx_push_rss_context_config(efx, priv, indir, key,1219 false);1220}1221 1222int efx_ethtool_create_rxfh_context(struct net_device *net_dev,1223 struct ethtool_rxfh_context *ctx,1224 const struct ethtool_rxfh_param *rxfh,1225 struct netlink_ext_ack *extack)1226{1227 struct efx_nic *efx = efx_netdev_priv(net_dev);1228 struct efx_rss_context_priv *priv;1229 1230 priv = ethtool_rxfh_context_priv(ctx);1231 1232 priv->context_id = EFX_MCDI_RSS_CONTEXT_INVALID;1233 priv->rx_hash_udp_4tuple = false;1234 /* Generate default indir table and/or key if not specified.1235 * We use ctx as a place to store these; this is fine because1236 * we're doing a create, so if we fail then the ctx will just1237 * be deleted.1238 */1239 if (!rxfh->indir)1240 efx_set_default_rx_indir_table(efx, ethtool_rxfh_context_indir(ctx));1241 if (!rxfh->key)1242 netdev_rss_key_fill(ethtool_rxfh_context_key(ctx),1243 ctx->key_size);1244 if (rxfh->hfunc == ETH_RSS_HASH_NO_CHANGE)1245 ctx->hfunc = ETH_RSS_HASH_TOP;1246 if (rxfh->input_xfrm == RXH_XFRM_NO_CHANGE)1247 ctx->input_xfrm = 0;1248 return efx_ethtool_modify_rxfh_context(net_dev, ctx, rxfh, extack);1249}1250 1251int efx_ethtool_remove_rxfh_context(struct net_device *net_dev,1252 struct ethtool_rxfh_context *ctx,1253 u32 rss_context,1254 struct netlink_ext_ack *extack)1255{1256 struct efx_nic *efx = efx_netdev_priv(net_dev);1257 struct efx_rss_context_priv *priv;1258 1259 if (!efx->type->rx_push_rss_context_config) {1260 NL_SET_ERR_MSG_MOD(extack,1261 "NIC type does not support custom contexts");1262 return -EOPNOTSUPP;1263 }1264 1265 priv = ethtool_rxfh_context_priv(ctx);1266 return efx->type->rx_push_rss_context_config(efx, priv, NULL, NULL,1267 true);1268}1269 1270int efx_ethtool_set_rxfh(struct net_device *net_dev,1271 struct ethtool_rxfh_param *rxfh,1272 struct netlink_ext_ack *extack)1273{1274 struct efx_nic *efx = efx_netdev_priv(net_dev);1275 u32 *indir = rxfh->indir;1276 u8 *key = rxfh->key;1277 1278 /* Hash function is Toeplitz, cannot be changed */1279 if (rxfh->hfunc != ETH_RSS_HASH_NO_CHANGE &&1280 rxfh->hfunc != ETH_RSS_HASH_TOP)1281 return -EOPNOTSUPP;1282 1283 /* Custom contexts should use new API */1284 if (WARN_ON_ONCE(rxfh->rss_context))1285 return -EIO;1286 1287 if (!indir && !key)1288 return 0;1289 1290 if (!key)1291 key = efx->rss_context.rx_hash_key;1292 if (!indir)1293 indir = efx->rss_context.rx_indir_table;1294 1295 return efx->type->rx_push_rss_config(efx, true, indir, key);1296}1297 1298int efx_ethtool_reset(struct net_device *net_dev, u32 *flags)1299{1300 struct efx_nic *efx = efx_netdev_priv(net_dev);1301 int rc;1302 1303 rc = efx->type->map_reset_flags(flags);1304 if (rc < 0)1305 return rc;1306 1307 return efx_reset(efx, rc);1308}1309 1310int efx_ethtool_get_module_eeprom(struct net_device *net_dev,1311 struct ethtool_eeprom *ee,1312 u8 *data)1313{1314 struct efx_nic *efx = efx_netdev_priv(net_dev);1315 int ret;1316 1317 mutex_lock(&efx->mac_lock);1318 ret = efx_mcdi_phy_get_module_eeprom(efx, ee, data);1319 mutex_unlock(&efx->mac_lock);1320 1321 return ret;1322}1323 1324int efx_ethtool_get_module_info(struct net_device *net_dev,1325 struct ethtool_modinfo *modinfo)1326{1327 struct efx_nic *efx = efx_netdev_priv(net_dev);1328 int ret;1329 1330 mutex_lock(&efx->mac_lock);1331 ret = efx_mcdi_phy_get_module_info(efx, modinfo);1332 mutex_unlock(&efx->mac_lock);1333 1334 return ret;1335}1336