en_ethtool.c revision 377d97393d93cca146937058986050a30857eec7
1/* 2 * Copyright (c) 2007 Mellanox Technologies. All rights reserved. 3 * 4 * This software is available to you under a choice of one of two 5 * licenses. You may choose to be licensed under the terms of the GNU 6 * General Public License (GPL) Version 2, available from the file 7 * COPYING in the main directory of this source tree, or the 8 * OpenIB.org BSD license below: 9 * 10 * Redistribution and use in source and binary forms, with or 11 * without modification, are permitted provided that the following 12 * conditions are met: 13 * 14 * - Redistributions of source code must retain the above 15 * copyright notice, this list of conditions and the following 16 * disclaimer. 17 * 18 * - Redistributions in binary form must reproduce the above 19 * copyright notice, this list of conditions and the following 20 * disclaimer in the documentation and/or other materials 21 * provided with the distribution. 22 * 23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 30 * SOFTWARE. 31 * 32 */ 33 34#include <linux/kernel.h> 35#include <linux/ethtool.h> 36#include <linux/netdevice.h> 37#include <linux/mlx4/driver.h> 38#include <linux/in.h> 39#include <net/ip.h> 40 41#include "mlx4_en.h" 42#include "en_port.h" 43 44#define EN_ETHTOOL_QP_ATTACH (1ull << 63) 45#define EN_ETHTOOL_SHORT_MASK cpu_to_be16(0xffff) 46#define EN_ETHTOOL_WORD_MASK cpu_to_be32(0xffffffff) 47 48static int mlx4_en_moderation_update(struct mlx4_en_priv *priv) 49{ 50 int i; 51 int err = 0; 52 53 for (i = 0; i < priv->tx_ring_num; i++) { 54 priv->tx_cq[i].moder_cnt = priv->tx_frames; 55 priv->tx_cq[i].moder_time = priv->tx_usecs; 56 err = mlx4_en_set_cq_moder(priv, &priv->tx_cq[i]); 57 if (err) 58 return err; 59 } 60 61 if (priv->adaptive_rx_coal) 62 return 0; 63 64 for (i = 0; i < priv->rx_ring_num; i++) { 65 priv->rx_cq[i].moder_cnt = priv->rx_frames; 66 priv->rx_cq[i].moder_time = priv->rx_usecs; 67 priv->last_moder_time[i] = MLX4_EN_AUTO_CONF; 68 err = mlx4_en_set_cq_moder(priv, &priv->rx_cq[i]); 69 if (err) 70 return err; 71 } 72 73 return err; 74} 75 76static void 77mlx4_en_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *drvinfo) 78{ 79 struct mlx4_en_priv *priv = netdev_priv(dev); 80 struct mlx4_en_dev *mdev = priv->mdev; 81 82 strlcpy(drvinfo->driver, DRV_NAME, sizeof(drvinfo->driver)); 83 strlcpy(drvinfo->version, DRV_VERSION " (" DRV_RELDATE ")", 84 sizeof(drvinfo->version)); 85 snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version), 86 "%d.%d.%d", 87 (u16) (mdev->dev->caps.fw_ver >> 32), 88 (u16) ((mdev->dev->caps.fw_ver >> 16) & 0xffff), 89 (u16) (mdev->dev->caps.fw_ver & 0xffff)); 90 strlcpy(drvinfo->bus_info, pci_name(mdev->dev->pdev), 91 sizeof(drvinfo->bus_info)); 92 drvinfo->n_stats = 0; 93 drvinfo->regdump_len = 0; 94 drvinfo->eedump_len = 0; 95} 96 97static const char main_strings[][ETH_GSTRING_LEN] = { 98 "rx_packets", "tx_packets", "rx_bytes", "tx_bytes", "rx_errors", 99 "tx_errors", "rx_dropped", "tx_dropped", "multicast", "collisions", 100 "rx_length_errors", "rx_over_errors", "rx_crc_errors", 101 "rx_frame_errors", "rx_fifo_errors", "rx_missed_errors", 102 "tx_aborted_errors", "tx_carrier_errors", "tx_fifo_errors", 103 "tx_heartbeat_errors", "tx_window_errors", 104 105 /* port statistics */ 106 "tso_packets", 107 "queue_stopped", "wake_queue", "tx_timeout", "rx_alloc_failed", 108 "rx_csum_good", "rx_csum_none", "tx_chksum_offload", 109 110 /* packet statistics */ 111 "broadcast", "rx_prio_0", "rx_prio_1", "rx_prio_2", "rx_prio_3", 112 "rx_prio_4", "rx_prio_5", "rx_prio_6", "rx_prio_7", "tx_prio_0", 113 "tx_prio_1", "tx_prio_2", "tx_prio_3", "tx_prio_4", "tx_prio_5", 114 "tx_prio_6", "tx_prio_7", 115}; 116#define NUM_MAIN_STATS 21 117#define NUM_ALL_STATS (NUM_MAIN_STATS + NUM_PORT_STATS + NUM_PKT_STATS + NUM_PERF_STATS) 118 119static const char mlx4_en_test_names[][ETH_GSTRING_LEN]= { 120 "Interrupt Test", 121 "Link Test", 122 "Speed Test", 123 "Register Test", 124 "Loopback Test", 125}; 126 127static u32 mlx4_en_get_msglevel(struct net_device *dev) 128{ 129 return ((struct mlx4_en_priv *) netdev_priv(dev))->msg_enable; 130} 131 132static void mlx4_en_set_msglevel(struct net_device *dev, u32 val) 133{ 134 ((struct mlx4_en_priv *) netdev_priv(dev))->msg_enable = val; 135} 136 137static void mlx4_en_get_wol(struct net_device *netdev, 138 struct ethtool_wolinfo *wol) 139{ 140 struct mlx4_en_priv *priv = netdev_priv(netdev); 141 int err = 0; 142 u64 config = 0; 143 u64 mask; 144 145 if ((priv->port < 1) || (priv->port > 2)) { 146 en_err(priv, "Failed to get WoL information\n"); 147 return; 148 } 149 150 mask = (priv->port == 1) ? MLX4_DEV_CAP_FLAG_WOL_PORT1 : 151 MLX4_DEV_CAP_FLAG_WOL_PORT2; 152 153 if (!(priv->mdev->dev->caps.flags & mask)) { 154 wol->supported = 0; 155 wol->wolopts = 0; 156 return; 157 } 158 159 err = mlx4_wol_read(priv->mdev->dev, &config, priv->port); 160 if (err) { 161 en_err(priv, "Failed to get WoL information\n"); 162 return; 163 } 164 165 if (config & MLX4_EN_WOL_MAGIC) 166 wol->supported = WAKE_MAGIC; 167 else 168 wol->supported = 0; 169 170 if (config & MLX4_EN_WOL_ENABLED) 171 wol->wolopts = WAKE_MAGIC; 172 else 173 wol->wolopts = 0; 174} 175 176static int mlx4_en_set_wol(struct net_device *netdev, 177 struct ethtool_wolinfo *wol) 178{ 179 struct mlx4_en_priv *priv = netdev_priv(netdev); 180 u64 config = 0; 181 int err = 0; 182 u64 mask; 183 184 if ((priv->port < 1) || (priv->port > 2)) 185 return -EOPNOTSUPP; 186 187 mask = (priv->port == 1) ? MLX4_DEV_CAP_FLAG_WOL_PORT1 : 188 MLX4_DEV_CAP_FLAG_WOL_PORT2; 189 190 if (!(priv->mdev->dev->caps.flags & mask)) 191 return -EOPNOTSUPP; 192 193 if (wol->supported & ~WAKE_MAGIC) 194 return -EINVAL; 195 196 err = mlx4_wol_read(priv->mdev->dev, &config, priv->port); 197 if (err) { 198 en_err(priv, "Failed to get WoL info, unable to modify\n"); 199 return err; 200 } 201 202 if (wol->wolopts & WAKE_MAGIC) { 203 config |= MLX4_EN_WOL_DO_MODIFY | MLX4_EN_WOL_ENABLED | 204 MLX4_EN_WOL_MAGIC; 205 } else { 206 config &= ~(MLX4_EN_WOL_ENABLED | MLX4_EN_WOL_MAGIC); 207 config |= MLX4_EN_WOL_DO_MODIFY; 208 } 209 210 err = mlx4_wol_write(priv->mdev->dev, config, priv->port); 211 if (err) 212 en_err(priv, "Failed to set WoL information\n"); 213 214 return err; 215} 216 217static int mlx4_en_get_sset_count(struct net_device *dev, int sset) 218{ 219 struct mlx4_en_priv *priv = netdev_priv(dev); 220 int bit_count = hweight64(priv->stats_bitmap); 221 222 switch (sset) { 223 case ETH_SS_STATS: 224 return (priv->stats_bitmap ? bit_count : NUM_ALL_STATS) + 225 (priv->tx_ring_num + priv->rx_ring_num) * 2; 226 case ETH_SS_TEST: 227 return MLX4_EN_NUM_SELF_TEST - !(priv->mdev->dev->caps.flags 228 & MLX4_DEV_CAP_FLAG_UC_LOOPBACK) * 2; 229 default: 230 return -EOPNOTSUPP; 231 } 232} 233 234static void mlx4_en_get_ethtool_stats(struct net_device *dev, 235 struct ethtool_stats *stats, uint64_t *data) 236{ 237 struct mlx4_en_priv *priv = netdev_priv(dev); 238 int index = 0; 239 int i, j = 0; 240 241 spin_lock_bh(&priv->stats_lock); 242 243 if (!(priv->stats_bitmap)) { 244 for (i = 0; i < NUM_MAIN_STATS; i++) 245 data[index++] = 246 ((unsigned long *) &priv->stats)[i]; 247 for (i = 0; i < NUM_PORT_STATS; i++) 248 data[index++] = 249 ((unsigned long *) &priv->port_stats)[i]; 250 for (i = 0; i < NUM_PKT_STATS; i++) 251 data[index++] = 252 ((unsigned long *) &priv->pkstats)[i]; 253 } else { 254 for (i = 0; i < NUM_MAIN_STATS; i++) { 255 if ((priv->stats_bitmap >> j) & 1) 256 data[index++] = 257 ((unsigned long *) &priv->stats)[i]; 258 j++; 259 } 260 for (i = 0; i < NUM_PORT_STATS; i++) { 261 if ((priv->stats_bitmap >> j) & 1) 262 data[index++] = 263 ((unsigned long *) &priv->port_stats)[i]; 264 j++; 265 } 266 } 267 for (i = 0; i < priv->tx_ring_num; i++) { 268 data[index++] = priv->tx_ring[i].packets; 269 data[index++] = priv->tx_ring[i].bytes; 270 } 271 for (i = 0; i < priv->rx_ring_num; i++) { 272 data[index++] = priv->rx_ring[i].packets; 273 data[index++] = priv->rx_ring[i].bytes; 274 } 275 spin_unlock_bh(&priv->stats_lock); 276 277} 278 279static void mlx4_en_self_test(struct net_device *dev, 280 struct ethtool_test *etest, u64 *buf) 281{ 282 mlx4_en_ex_selftest(dev, &etest->flags, buf); 283} 284 285static void mlx4_en_get_strings(struct net_device *dev, 286 uint32_t stringset, uint8_t *data) 287{ 288 struct mlx4_en_priv *priv = netdev_priv(dev); 289 int index = 0; 290 int i; 291 292 switch (stringset) { 293 case ETH_SS_TEST: 294 for (i = 0; i < MLX4_EN_NUM_SELF_TEST - 2; i++) 295 strcpy(data + i * ETH_GSTRING_LEN, mlx4_en_test_names[i]); 296 if (priv->mdev->dev->caps.flags & MLX4_DEV_CAP_FLAG_UC_LOOPBACK) 297 for (; i < MLX4_EN_NUM_SELF_TEST; i++) 298 strcpy(data + i * ETH_GSTRING_LEN, mlx4_en_test_names[i]); 299 break; 300 301 case ETH_SS_STATS: 302 /* Add main counters */ 303 if (!priv->stats_bitmap) { 304 for (i = 0; i < NUM_MAIN_STATS; i++) 305 strcpy(data + (index++) * ETH_GSTRING_LEN, 306 main_strings[i]); 307 for (i = 0; i < NUM_PORT_STATS; i++) 308 strcpy(data + (index++) * ETH_GSTRING_LEN, 309 main_strings[i + 310 NUM_MAIN_STATS]); 311 for (i = 0; i < NUM_PKT_STATS; i++) 312 strcpy(data + (index++) * ETH_GSTRING_LEN, 313 main_strings[i + 314 NUM_MAIN_STATS + 315 NUM_PORT_STATS]); 316 } else 317 for (i = 0; i < NUM_MAIN_STATS + NUM_PORT_STATS; i++) { 318 if ((priv->stats_bitmap >> i) & 1) { 319 strcpy(data + 320 (index++) * ETH_GSTRING_LEN, 321 main_strings[i]); 322 } 323 if (!(priv->stats_bitmap >> i)) 324 break; 325 } 326 for (i = 0; i < priv->tx_ring_num; i++) { 327 sprintf(data + (index++) * ETH_GSTRING_LEN, 328 "tx%d_packets", i); 329 sprintf(data + (index++) * ETH_GSTRING_LEN, 330 "tx%d_bytes", i); 331 } 332 for (i = 0; i < priv->rx_ring_num; i++) { 333 sprintf(data + (index++) * ETH_GSTRING_LEN, 334 "rx%d_packets", i); 335 sprintf(data + (index++) * ETH_GSTRING_LEN, 336 "rx%d_bytes", i); 337 } 338 break; 339 } 340} 341 342static int mlx4_en_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) 343{ 344 struct mlx4_en_priv *priv = netdev_priv(dev); 345 int trans_type; 346 347 cmd->autoneg = AUTONEG_DISABLE; 348 cmd->supported = SUPPORTED_10000baseT_Full; 349 cmd->advertising = ADVERTISED_10000baseT_Full; 350 351 if (mlx4_en_QUERY_PORT(priv->mdev, priv->port)) 352 return -ENOMEM; 353 354 trans_type = priv->port_state.transciver; 355 if (netif_carrier_ok(dev)) { 356 ethtool_cmd_speed_set(cmd, priv->port_state.link_speed); 357 cmd->duplex = DUPLEX_FULL; 358 } else { 359 ethtool_cmd_speed_set(cmd, -1); 360 cmd->duplex = -1; 361 } 362 363 if (trans_type > 0 && trans_type <= 0xC) { 364 cmd->port = PORT_FIBRE; 365 cmd->transceiver = XCVR_EXTERNAL; 366 cmd->supported |= SUPPORTED_FIBRE; 367 cmd->advertising |= ADVERTISED_FIBRE; 368 } else if (trans_type == 0x80 || trans_type == 0) { 369 cmd->port = PORT_TP; 370 cmd->transceiver = XCVR_INTERNAL; 371 cmd->supported |= SUPPORTED_TP; 372 cmd->advertising |= ADVERTISED_TP; 373 } else { 374 cmd->port = -1; 375 cmd->transceiver = -1; 376 } 377 return 0; 378} 379 380static int mlx4_en_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) 381{ 382 if ((cmd->autoneg == AUTONEG_ENABLE) || 383 (ethtool_cmd_speed(cmd) != SPEED_10000) || 384 (cmd->duplex != DUPLEX_FULL)) 385 return -EINVAL; 386 387 /* Nothing to change */ 388 return 0; 389} 390 391static int mlx4_en_get_coalesce(struct net_device *dev, 392 struct ethtool_coalesce *coal) 393{ 394 struct mlx4_en_priv *priv = netdev_priv(dev); 395 396 coal->tx_coalesce_usecs = priv->tx_usecs; 397 coal->tx_max_coalesced_frames = priv->tx_frames; 398 coal->rx_coalesce_usecs = priv->rx_usecs; 399 coal->rx_max_coalesced_frames = priv->rx_frames; 400 401 coal->pkt_rate_low = priv->pkt_rate_low; 402 coal->rx_coalesce_usecs_low = priv->rx_usecs_low; 403 coal->pkt_rate_high = priv->pkt_rate_high; 404 coal->rx_coalesce_usecs_high = priv->rx_usecs_high; 405 coal->rate_sample_interval = priv->sample_interval; 406 coal->use_adaptive_rx_coalesce = priv->adaptive_rx_coal; 407 return 0; 408} 409 410static int mlx4_en_set_coalesce(struct net_device *dev, 411 struct ethtool_coalesce *coal) 412{ 413 struct mlx4_en_priv *priv = netdev_priv(dev); 414 415 priv->rx_frames = (coal->rx_max_coalesced_frames == 416 MLX4_EN_AUTO_CONF) ? 417 MLX4_EN_RX_COAL_TARGET : 418 coal->rx_max_coalesced_frames; 419 priv->rx_usecs = (coal->rx_coalesce_usecs == 420 MLX4_EN_AUTO_CONF) ? 421 MLX4_EN_RX_COAL_TIME : 422 coal->rx_coalesce_usecs; 423 424 /* Setting TX coalescing parameters */ 425 if (coal->tx_coalesce_usecs != priv->tx_usecs || 426 coal->tx_max_coalesced_frames != priv->tx_frames) { 427 priv->tx_usecs = coal->tx_coalesce_usecs; 428 priv->tx_frames = coal->tx_max_coalesced_frames; 429 } 430 431 /* Set adaptive coalescing params */ 432 priv->pkt_rate_low = coal->pkt_rate_low; 433 priv->rx_usecs_low = coal->rx_coalesce_usecs_low; 434 priv->pkt_rate_high = coal->pkt_rate_high; 435 priv->rx_usecs_high = coal->rx_coalesce_usecs_high; 436 priv->sample_interval = coal->rate_sample_interval; 437 priv->adaptive_rx_coal = coal->use_adaptive_rx_coalesce; 438 439 return mlx4_en_moderation_update(priv); 440} 441 442static int mlx4_en_set_pauseparam(struct net_device *dev, 443 struct ethtool_pauseparam *pause) 444{ 445 struct mlx4_en_priv *priv = netdev_priv(dev); 446 struct mlx4_en_dev *mdev = priv->mdev; 447 int err; 448 449 priv->prof->tx_pause = pause->tx_pause != 0; 450 priv->prof->rx_pause = pause->rx_pause != 0; 451 err = mlx4_SET_PORT_general(mdev->dev, priv->port, 452 priv->rx_skb_size + ETH_FCS_LEN, 453 priv->prof->tx_pause, 454 priv->prof->tx_ppp, 455 priv->prof->rx_pause, 456 priv->prof->rx_ppp); 457 if (err) 458 en_err(priv, "Failed setting pause params\n"); 459 460 return err; 461} 462 463static void mlx4_en_get_pauseparam(struct net_device *dev, 464 struct ethtool_pauseparam *pause) 465{ 466 struct mlx4_en_priv *priv = netdev_priv(dev); 467 468 pause->tx_pause = priv->prof->tx_pause; 469 pause->rx_pause = priv->prof->rx_pause; 470} 471 472static int mlx4_en_set_ringparam(struct net_device *dev, 473 struct ethtool_ringparam *param) 474{ 475 struct mlx4_en_priv *priv = netdev_priv(dev); 476 struct mlx4_en_dev *mdev = priv->mdev; 477 u32 rx_size, tx_size; 478 int port_up = 0; 479 int err = 0; 480 481 if (param->rx_jumbo_pending || param->rx_mini_pending) 482 return -EINVAL; 483 484 rx_size = roundup_pow_of_two(param->rx_pending); 485 rx_size = max_t(u32, rx_size, MLX4_EN_MIN_RX_SIZE); 486 rx_size = min_t(u32, rx_size, MLX4_EN_MAX_RX_SIZE); 487 tx_size = roundup_pow_of_two(param->tx_pending); 488 tx_size = max_t(u32, tx_size, MLX4_EN_MIN_TX_SIZE); 489 tx_size = min_t(u32, tx_size, MLX4_EN_MAX_TX_SIZE); 490 491 if (rx_size == (priv->port_up ? priv->rx_ring[0].actual_size : 492 priv->rx_ring[0].size) && 493 tx_size == priv->tx_ring[0].size) 494 return 0; 495 496 mutex_lock(&mdev->state_lock); 497 if (priv->port_up) { 498 port_up = 1; 499 mlx4_en_stop_port(dev, 1); 500 } 501 502 mlx4_en_free_resources(priv); 503 504 priv->prof->tx_ring_size = tx_size; 505 priv->prof->rx_ring_size = rx_size; 506 507 err = mlx4_en_alloc_resources(priv); 508 if (err) { 509 en_err(priv, "Failed reallocating port resources\n"); 510 goto out; 511 } 512 if (port_up) { 513 err = mlx4_en_start_port(dev); 514 if (err) 515 en_err(priv, "Failed starting port\n"); 516 } 517 518 err = mlx4_en_moderation_update(priv); 519 520out: 521 mutex_unlock(&mdev->state_lock); 522 return err; 523} 524 525static void mlx4_en_get_ringparam(struct net_device *dev, 526 struct ethtool_ringparam *param) 527{ 528 struct mlx4_en_priv *priv = netdev_priv(dev); 529 530 memset(param, 0, sizeof(*param)); 531 param->rx_max_pending = MLX4_EN_MAX_RX_SIZE; 532 param->tx_max_pending = MLX4_EN_MAX_TX_SIZE; 533 param->rx_pending = priv->port_up ? 534 priv->rx_ring[0].actual_size : priv->rx_ring[0].size; 535 param->tx_pending = priv->tx_ring[0].size; 536} 537 538static u32 mlx4_en_get_rxfh_indir_size(struct net_device *dev) 539{ 540 struct mlx4_en_priv *priv = netdev_priv(dev); 541 542 return priv->rx_ring_num; 543} 544 545static int mlx4_en_get_rxfh_indir(struct net_device *dev, u32 *ring_index) 546{ 547 struct mlx4_en_priv *priv = netdev_priv(dev); 548 struct mlx4_en_rss_map *rss_map = &priv->rss_map; 549 int rss_rings; 550 size_t n = priv->rx_ring_num; 551 int err = 0; 552 553 rss_rings = priv->prof->rss_rings ?: priv->rx_ring_num; 554 555 while (n--) { 556 ring_index[n] = rss_map->qps[n % rss_rings].qpn - 557 rss_map->base_qpn; 558 } 559 560 return err; 561} 562 563static int mlx4_en_set_rxfh_indir(struct net_device *dev, 564 const u32 *ring_index) 565{ 566 struct mlx4_en_priv *priv = netdev_priv(dev); 567 struct mlx4_en_dev *mdev = priv->mdev; 568 int port_up = 0; 569 int err = 0; 570 int i; 571 int rss_rings = 0; 572 573 /* Calculate RSS table size and make sure flows are spread evenly 574 * between rings 575 */ 576 for (i = 0; i < priv->rx_ring_num; i++) { 577 if (i > 0 && !ring_index[i] && !rss_rings) 578 rss_rings = i; 579 580 if (ring_index[i] != (i % (rss_rings ?: priv->rx_ring_num))) 581 return -EINVAL; 582 } 583 584 if (!rss_rings) 585 rss_rings = priv->rx_ring_num; 586 587 /* RSS table size must be an order of 2 */ 588 if (!is_power_of_2(rss_rings)) 589 return -EINVAL; 590 591 mutex_lock(&mdev->state_lock); 592 if (priv->port_up) { 593 port_up = 1; 594 mlx4_en_stop_port(dev, 1); 595 } 596 597 priv->prof->rss_rings = rss_rings; 598 599 if (port_up) { 600 err = mlx4_en_start_port(dev); 601 if (err) 602 en_err(priv, "Failed starting port\n"); 603 } 604 605 mutex_unlock(&mdev->state_lock); 606 return err; 607} 608 609#define all_zeros_or_all_ones(field) \ 610 ((field) == 0 || (field) == (__force typeof(field))-1) 611 612static int mlx4_en_validate_flow(struct net_device *dev, 613 struct ethtool_rxnfc *cmd) 614{ 615 struct ethtool_usrip4_spec *l3_mask; 616 struct ethtool_tcpip4_spec *l4_mask; 617 struct ethhdr *eth_mask; 618 619 if (cmd->fs.location >= MAX_NUM_OF_FS_RULES) 620 return -EINVAL; 621 622 if (cmd->fs.flow_type & FLOW_MAC_EXT) { 623 /* dest mac mask must be ff:ff:ff:ff:ff:ff */ 624 if (!is_broadcast_ether_addr(cmd->fs.m_ext.h_dest)) 625 return -EINVAL; 626 } 627 628 switch (cmd->fs.flow_type & ~(FLOW_EXT | FLOW_MAC_EXT)) { 629 case TCP_V4_FLOW: 630 case UDP_V4_FLOW: 631 if (cmd->fs.m_u.tcp_ip4_spec.tos) 632 return -EINVAL; 633 l4_mask = &cmd->fs.m_u.tcp_ip4_spec; 634 /* don't allow mask which isn't all 0 or 1 */ 635 if (!all_zeros_or_all_ones(l4_mask->ip4src) || 636 !all_zeros_or_all_ones(l4_mask->ip4dst) || 637 !all_zeros_or_all_ones(l4_mask->psrc) || 638 !all_zeros_or_all_ones(l4_mask->pdst)) 639 return -EINVAL; 640 break; 641 case IP_USER_FLOW: 642 l3_mask = &cmd->fs.m_u.usr_ip4_spec; 643 if (l3_mask->l4_4_bytes || l3_mask->tos || l3_mask->proto || 644 cmd->fs.h_u.usr_ip4_spec.ip_ver != ETH_RX_NFC_IP4 || 645 (!l3_mask->ip4src && !l3_mask->ip4dst) || 646 !all_zeros_or_all_ones(l3_mask->ip4src) || 647 !all_zeros_or_all_ones(l3_mask->ip4dst)) 648 return -EINVAL; 649 break; 650 case ETHER_FLOW: 651 eth_mask = &cmd->fs.m_u.ether_spec; 652 /* source mac mask must not be set */ 653 if (!is_zero_ether_addr(eth_mask->h_source)) 654 return -EINVAL; 655 656 /* dest mac mask must be ff:ff:ff:ff:ff:ff */ 657 if (!is_broadcast_ether_addr(eth_mask->h_dest)) 658 return -EINVAL; 659 660 if (!all_zeros_or_all_ones(eth_mask->h_proto)) 661 return -EINVAL; 662 break; 663 default: 664 return -EINVAL; 665 } 666 667 if ((cmd->fs.flow_type & FLOW_EXT)) { 668 if (cmd->fs.m_ext.vlan_etype || 669 !((cmd->fs.m_ext.vlan_tci & cpu_to_be16(VLAN_VID_MASK)) == 670 0 || 671 (cmd->fs.m_ext.vlan_tci & cpu_to_be16(VLAN_VID_MASK)) == 672 cpu_to_be16(VLAN_VID_MASK))) 673 return -EINVAL; 674 675 if (cmd->fs.m_ext.vlan_tci) { 676 if (be16_to_cpu(cmd->fs.h_ext.vlan_tci) >= VLAN_N_VID) 677 return -EINVAL; 678 679 } 680 } 681 682 return 0; 683} 684 685static int mlx4_en_ethtool_add_mac_rule(struct ethtool_rxnfc *cmd, 686 struct list_head *rule_list_h, 687 struct mlx4_spec_list *spec_l2, 688 unsigned char *mac) 689{ 690 int err = 0; 691 __be64 mac_msk = cpu_to_be64(MLX4_MAC_MASK << 16); 692 693 spec_l2->id = MLX4_NET_TRANS_RULE_ID_ETH; 694 memcpy(spec_l2->eth.dst_mac_msk, &mac_msk, ETH_ALEN); 695 memcpy(spec_l2->eth.dst_mac, mac, ETH_ALEN); 696 697 if ((cmd->fs.flow_type & FLOW_EXT) && 698 (cmd->fs.m_ext.vlan_tci & cpu_to_be16(VLAN_VID_MASK))) { 699 spec_l2->eth.vlan_id = cmd->fs.h_ext.vlan_tci; 700 spec_l2->eth.vlan_id_msk = cpu_to_be16(VLAN_VID_MASK); 701 } 702 703 list_add_tail(&spec_l2->list, rule_list_h); 704 705 return err; 706} 707 708static int mlx4_en_ethtool_add_mac_rule_by_ipv4(struct mlx4_en_priv *priv, 709 struct ethtool_rxnfc *cmd, 710 struct list_head *rule_list_h, 711 struct mlx4_spec_list *spec_l2, 712 __be32 ipv4_dst) 713{ 714 __be64 be_mac = 0; 715 unsigned char mac[ETH_ALEN]; 716 717 if (!ipv4_is_multicast(ipv4_dst)) { 718 if (cmd->fs.flow_type & FLOW_MAC_EXT) { 719 memcpy(&mac, cmd->fs.h_ext.h_dest, ETH_ALEN); 720 } else { 721 be_mac = cpu_to_be64((priv->mac & MLX4_MAC_MASK) << 16); 722 memcpy(&mac, &be_mac, ETH_ALEN); 723 } 724 } else { 725 ip_eth_mc_map(ipv4_dst, mac); 726 } 727 728 return mlx4_en_ethtool_add_mac_rule(cmd, rule_list_h, spec_l2, &mac[0]); 729} 730 731static int add_ip_rule(struct mlx4_en_priv *priv, 732 struct ethtool_rxnfc *cmd, 733 struct list_head *list_h) 734{ 735 int err; 736 struct mlx4_spec_list *spec_l2 = NULL; 737 struct mlx4_spec_list *spec_l3 = NULL; 738 struct ethtool_usrip4_spec *l3_mask = &cmd->fs.m_u.usr_ip4_spec; 739 740 spec_l3 = kzalloc(sizeof(*spec_l3), GFP_KERNEL); 741 spec_l2 = kzalloc(sizeof(*spec_l2), GFP_KERNEL); 742 if (!spec_l2 || !spec_l3) { 743 en_err(priv, "Fail to alloc ethtool rule.\n"); 744 err = -ENOMEM; 745 goto free_spec; 746 } 747 748 err = mlx4_en_ethtool_add_mac_rule_by_ipv4(priv, cmd, list_h, spec_l2, 749 cmd->fs.h_u. 750 usr_ip4_spec.ip4dst); 751 if (err) 752 goto free_spec; 753 spec_l3->id = MLX4_NET_TRANS_RULE_ID_IPV4; 754 spec_l3->ipv4.src_ip = cmd->fs.h_u.usr_ip4_spec.ip4src; 755 if (l3_mask->ip4src) 756 spec_l3->ipv4.src_ip_msk = EN_ETHTOOL_WORD_MASK; 757 spec_l3->ipv4.dst_ip = cmd->fs.h_u.usr_ip4_spec.ip4dst; 758 if (l3_mask->ip4dst) 759 spec_l3->ipv4.dst_ip_msk = EN_ETHTOOL_WORD_MASK; 760 list_add_tail(&spec_l3->list, list_h); 761 762 return 0; 763 764free_spec: 765 kfree(spec_l2); 766 kfree(spec_l3); 767 return err; 768} 769 770static int add_tcp_udp_rule(struct mlx4_en_priv *priv, 771 struct ethtool_rxnfc *cmd, 772 struct list_head *list_h, int proto) 773{ 774 int err; 775 struct mlx4_spec_list *spec_l2 = NULL; 776 struct mlx4_spec_list *spec_l3 = NULL; 777 struct mlx4_spec_list *spec_l4 = NULL; 778 struct ethtool_tcpip4_spec *l4_mask = &cmd->fs.m_u.tcp_ip4_spec; 779 780 spec_l2 = kzalloc(sizeof(*spec_l2), GFP_KERNEL); 781 spec_l3 = kzalloc(sizeof(*spec_l3), GFP_KERNEL); 782 spec_l4 = kzalloc(sizeof(*spec_l4), GFP_KERNEL); 783 if (!spec_l2 || !spec_l3 || !spec_l4) { 784 en_err(priv, "Fail to alloc ethtool rule.\n"); 785 err = -ENOMEM; 786 goto free_spec; 787 } 788 789 spec_l3->id = MLX4_NET_TRANS_RULE_ID_IPV4; 790 791 if (proto == TCP_V4_FLOW) { 792 err = mlx4_en_ethtool_add_mac_rule_by_ipv4(priv, cmd, list_h, 793 spec_l2, 794 cmd->fs.h_u. 795 tcp_ip4_spec.ip4dst); 796 if (err) 797 goto free_spec; 798 spec_l4->id = MLX4_NET_TRANS_RULE_ID_TCP; 799 spec_l3->ipv4.src_ip = cmd->fs.h_u.tcp_ip4_spec.ip4src; 800 spec_l3->ipv4.dst_ip = cmd->fs.h_u.tcp_ip4_spec.ip4dst; 801 spec_l4->tcp_udp.src_port = cmd->fs.h_u.tcp_ip4_spec.psrc; 802 spec_l4->tcp_udp.dst_port = cmd->fs.h_u.tcp_ip4_spec.pdst; 803 } else { 804 err = mlx4_en_ethtool_add_mac_rule_by_ipv4(priv, cmd, list_h, 805 spec_l2, 806 cmd->fs.h_u. 807 udp_ip4_spec.ip4dst); 808 if (err) 809 goto free_spec; 810 spec_l4->id = MLX4_NET_TRANS_RULE_ID_UDP; 811 spec_l3->ipv4.src_ip = cmd->fs.h_u.udp_ip4_spec.ip4src; 812 spec_l3->ipv4.dst_ip = cmd->fs.h_u.udp_ip4_spec.ip4dst; 813 spec_l4->tcp_udp.src_port = cmd->fs.h_u.udp_ip4_spec.psrc; 814 spec_l4->tcp_udp.dst_port = cmd->fs.h_u.udp_ip4_spec.pdst; 815 } 816 817 if (l4_mask->ip4src) 818 spec_l3->ipv4.src_ip_msk = EN_ETHTOOL_WORD_MASK; 819 if (l4_mask->ip4dst) 820 spec_l3->ipv4.dst_ip_msk = EN_ETHTOOL_WORD_MASK; 821 822 if (l4_mask->psrc) 823 spec_l4->tcp_udp.src_port_msk = EN_ETHTOOL_SHORT_MASK; 824 if (l4_mask->pdst) 825 spec_l4->tcp_udp.dst_port_msk = EN_ETHTOOL_SHORT_MASK; 826 827 list_add_tail(&spec_l3->list, list_h); 828 list_add_tail(&spec_l4->list, list_h); 829 830 return 0; 831 832free_spec: 833 kfree(spec_l2); 834 kfree(spec_l3); 835 kfree(spec_l4); 836 return err; 837} 838 839static int mlx4_en_ethtool_to_net_trans_rule(struct net_device *dev, 840 struct ethtool_rxnfc *cmd, 841 struct list_head *rule_list_h) 842{ 843 int err; 844 struct ethhdr *eth_spec; 845 struct mlx4_spec_list *spec_l2; 846 struct mlx4_en_priv *priv = netdev_priv(dev); 847 848 err = mlx4_en_validate_flow(dev, cmd); 849 if (err) 850 return err; 851 852 switch (cmd->fs.flow_type & ~(FLOW_EXT | FLOW_MAC_EXT)) { 853 case ETHER_FLOW: 854 spec_l2 = kzalloc(sizeof(*spec_l2), GFP_KERNEL); 855 if (!spec_l2) 856 return -ENOMEM; 857 858 eth_spec = &cmd->fs.h_u.ether_spec; 859 mlx4_en_ethtool_add_mac_rule(cmd, rule_list_h, spec_l2, 860 ð_spec->h_dest[0]); 861 spec_l2->eth.ether_type = eth_spec->h_proto; 862 if (eth_spec->h_proto) 863 spec_l2->eth.ether_type_enable = 1; 864 break; 865 case IP_USER_FLOW: 866 err = add_ip_rule(priv, cmd, rule_list_h); 867 break; 868 case TCP_V4_FLOW: 869 err = add_tcp_udp_rule(priv, cmd, rule_list_h, TCP_V4_FLOW); 870 break; 871 case UDP_V4_FLOW: 872 err = add_tcp_udp_rule(priv, cmd, rule_list_h, UDP_V4_FLOW); 873 break; 874 } 875 876 return err; 877} 878 879static int mlx4_en_flow_replace(struct net_device *dev, 880 struct ethtool_rxnfc *cmd) 881{ 882 int err; 883 struct mlx4_en_priv *priv = netdev_priv(dev); 884 struct ethtool_flow_id *loc_rule; 885 struct mlx4_spec_list *spec, *tmp_spec; 886 u32 qpn; 887 u64 reg_id; 888 889 struct mlx4_net_trans_rule rule = { 890 .queue_mode = MLX4_NET_TRANS_Q_FIFO, 891 .exclusive = 0, 892 .allow_loopback = 1, 893 .promisc_mode = MLX4_FS_PROMISC_NONE, 894 }; 895 896 rule.port = priv->port; 897 rule.priority = MLX4_DOMAIN_ETHTOOL | cmd->fs.location; 898 INIT_LIST_HEAD(&rule.list); 899 900 /* Allow direct QP attaches if the EN_ETHTOOL_QP_ATTACH flag is set */ 901 if (cmd->fs.ring_cookie == RX_CLS_FLOW_DISC) 902 qpn = priv->drop_qp.qpn; 903 else if (cmd->fs.ring_cookie & EN_ETHTOOL_QP_ATTACH) { 904 qpn = cmd->fs.ring_cookie & (EN_ETHTOOL_QP_ATTACH - 1); 905 } else { 906 if (cmd->fs.ring_cookie >= priv->rx_ring_num) { 907 en_warn(priv, "rxnfc: RX ring (%llu) doesn't exist.\n", 908 cmd->fs.ring_cookie); 909 return -EINVAL; 910 } 911 qpn = priv->rss_map.qps[cmd->fs.ring_cookie].qpn; 912 if (!qpn) { 913 en_warn(priv, "rxnfc: RX ring (%llu) is inactive.\n", 914 cmd->fs.ring_cookie); 915 return -EINVAL; 916 } 917 } 918 rule.qpn = qpn; 919 err = mlx4_en_ethtool_to_net_trans_rule(dev, cmd, &rule.list); 920 if (err) 921 goto out_free_list; 922 923 loc_rule = &priv->ethtool_rules[cmd->fs.location]; 924 if (loc_rule->id) { 925 err = mlx4_flow_detach(priv->mdev->dev, loc_rule->id); 926 if (err) { 927 en_err(priv, "Fail to detach network rule at location %d. registration id = %llx\n", 928 cmd->fs.location, loc_rule->id); 929 goto out_free_list; 930 } 931 loc_rule->id = 0; 932 memset(&loc_rule->flow_spec, 0, 933 sizeof(struct ethtool_rx_flow_spec)); 934 list_del(&loc_rule->list); 935 } 936 err = mlx4_flow_attach(priv->mdev->dev, &rule, ®_id); 937 if (err) { 938 en_err(priv, "Fail to attach network rule at location %d.\n", 939 cmd->fs.location); 940 goto out_free_list; 941 } 942 loc_rule->id = reg_id; 943 memcpy(&loc_rule->flow_spec, &cmd->fs, 944 sizeof(struct ethtool_rx_flow_spec)); 945 list_add_tail(&loc_rule->list, &priv->ethtool_list); 946 947out_free_list: 948 list_for_each_entry_safe(spec, tmp_spec, &rule.list, list) { 949 list_del(&spec->list); 950 kfree(spec); 951 } 952 return err; 953} 954 955static int mlx4_en_flow_detach(struct net_device *dev, 956 struct ethtool_rxnfc *cmd) 957{ 958 int err = 0; 959 struct ethtool_flow_id *rule; 960 struct mlx4_en_priv *priv = netdev_priv(dev); 961 962 if (cmd->fs.location >= MAX_NUM_OF_FS_RULES) 963 return -EINVAL; 964 965 rule = &priv->ethtool_rules[cmd->fs.location]; 966 if (!rule->id) { 967 err = -ENOENT; 968 goto out; 969 } 970 971 err = mlx4_flow_detach(priv->mdev->dev, rule->id); 972 if (err) { 973 en_err(priv, "Fail to detach network rule at location %d. registration id = 0x%llx\n", 974 cmd->fs.location, rule->id); 975 goto out; 976 } 977 rule->id = 0; 978 memset(&rule->flow_spec, 0, sizeof(struct ethtool_rx_flow_spec)); 979 list_del(&rule->list); 980out: 981 return err; 982 983} 984 985static int mlx4_en_get_flow(struct net_device *dev, struct ethtool_rxnfc *cmd, 986 int loc) 987{ 988 int err = 0; 989 struct ethtool_flow_id *rule; 990 struct mlx4_en_priv *priv = netdev_priv(dev); 991 992 if (loc < 0 || loc >= MAX_NUM_OF_FS_RULES) 993 return -EINVAL; 994 995 rule = &priv->ethtool_rules[loc]; 996 if (rule->id) 997 memcpy(&cmd->fs, &rule->flow_spec, 998 sizeof(struct ethtool_rx_flow_spec)); 999 else 1000 err = -ENOENT; 1001 1002 return err; 1003} 1004 1005static int mlx4_en_get_num_flows(struct mlx4_en_priv *priv) 1006{ 1007 1008 int i, res = 0; 1009 for (i = 0; i < MAX_NUM_OF_FS_RULES; i++) { 1010 if (priv->ethtool_rules[i].id) 1011 res++; 1012 } 1013 return res; 1014 1015} 1016 1017static int mlx4_en_get_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd, 1018 u32 *rule_locs) 1019{ 1020 struct mlx4_en_priv *priv = netdev_priv(dev); 1021 struct mlx4_en_dev *mdev = priv->mdev; 1022 int err = 0; 1023 int i = 0, priority = 0; 1024 1025 if ((cmd->cmd == ETHTOOL_GRXCLSRLCNT || 1026 cmd->cmd == ETHTOOL_GRXCLSRULE || 1027 cmd->cmd == ETHTOOL_GRXCLSRLALL) && 1028 (mdev->dev->caps.steering_mode != 1029 MLX4_STEERING_MODE_DEVICE_MANAGED || !priv->port_up)) 1030 return -EINVAL; 1031 1032 switch (cmd->cmd) { 1033 case ETHTOOL_GRXRINGS: 1034 cmd->data = priv->rx_ring_num; 1035 break; 1036 case ETHTOOL_GRXCLSRLCNT: 1037 cmd->rule_cnt = mlx4_en_get_num_flows(priv); 1038 break; 1039 case ETHTOOL_GRXCLSRULE: 1040 err = mlx4_en_get_flow(dev, cmd, cmd->fs.location); 1041 break; 1042 case ETHTOOL_GRXCLSRLALL: 1043 while ((!err || err == -ENOENT) && priority < cmd->rule_cnt) { 1044 err = mlx4_en_get_flow(dev, cmd, i); 1045 if (!err) 1046 rule_locs[priority++] = i; 1047 i++; 1048 } 1049 err = 0; 1050 break; 1051 default: 1052 err = -EOPNOTSUPP; 1053 break; 1054 } 1055 1056 return err; 1057} 1058 1059static int mlx4_en_set_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd) 1060{ 1061 int err = 0; 1062 struct mlx4_en_priv *priv = netdev_priv(dev); 1063 struct mlx4_en_dev *mdev = priv->mdev; 1064 1065 if (mdev->dev->caps.steering_mode != 1066 MLX4_STEERING_MODE_DEVICE_MANAGED || !priv->port_up) 1067 return -EINVAL; 1068 1069 switch (cmd->cmd) { 1070 case ETHTOOL_SRXCLSRLINS: 1071 err = mlx4_en_flow_replace(dev, cmd); 1072 break; 1073 case ETHTOOL_SRXCLSRLDEL: 1074 err = mlx4_en_flow_detach(dev, cmd); 1075 break; 1076 default: 1077 en_warn(priv, "Unsupported ethtool command. (%d)\n", cmd->cmd); 1078 return -EINVAL; 1079 } 1080 1081 return err; 1082} 1083 1084static void mlx4_en_get_channels(struct net_device *dev, 1085 struct ethtool_channels *channel) 1086{ 1087 struct mlx4_en_priv *priv = netdev_priv(dev); 1088 1089 memset(channel, 0, sizeof(*channel)); 1090 1091 channel->max_rx = MAX_RX_RINGS; 1092 channel->max_tx = MLX4_EN_MAX_TX_RING_P_UP; 1093 1094 channel->rx_count = priv->rx_ring_num; 1095 channel->tx_count = priv->tx_ring_num / MLX4_EN_NUM_UP; 1096} 1097 1098static int mlx4_en_set_channels(struct net_device *dev, 1099 struct ethtool_channels *channel) 1100{ 1101 struct mlx4_en_priv *priv = netdev_priv(dev); 1102 struct mlx4_en_dev *mdev = priv->mdev; 1103 int port_up; 1104 int err = 0; 1105 1106 if (channel->other_count || channel->combined_count || 1107 channel->tx_count > MLX4_EN_MAX_TX_RING_P_UP || 1108 channel->rx_count > MAX_RX_RINGS || 1109 !channel->tx_count || !channel->rx_count) 1110 return -EINVAL; 1111 1112 mutex_lock(&mdev->state_lock); 1113 if (priv->port_up) { 1114 port_up = 1; 1115 mlx4_en_stop_port(dev, 1); 1116 } 1117 1118 mlx4_en_free_resources(priv); 1119 1120 priv->num_tx_rings_p_up = channel->tx_count; 1121 priv->tx_ring_num = channel->tx_count * MLX4_EN_NUM_UP; 1122 priv->rx_ring_num = channel->rx_count; 1123 1124 err = mlx4_en_alloc_resources(priv); 1125 if (err) { 1126 en_err(priv, "Failed reallocating port resources\n"); 1127 goto out; 1128 } 1129 1130 netif_set_real_num_tx_queues(dev, priv->tx_ring_num); 1131 netif_set_real_num_rx_queues(dev, priv->rx_ring_num); 1132 1133 mlx4_en_setup_tc(dev, MLX4_EN_NUM_UP); 1134 1135 en_warn(priv, "Using %d TX rings\n", priv->tx_ring_num); 1136 en_warn(priv, "Using %d RX rings\n", priv->rx_ring_num); 1137 1138 if (port_up) { 1139 err = mlx4_en_start_port(dev); 1140 if (err) 1141 en_err(priv, "Failed starting port\n"); 1142 } 1143 1144 err = mlx4_en_moderation_update(priv); 1145 1146out: 1147 mutex_unlock(&mdev->state_lock); 1148 return err; 1149} 1150 1151const struct ethtool_ops mlx4_en_ethtool_ops = { 1152 .get_drvinfo = mlx4_en_get_drvinfo, 1153 .get_settings = mlx4_en_get_settings, 1154 .set_settings = mlx4_en_set_settings, 1155 .get_link = ethtool_op_get_link, 1156 .get_strings = mlx4_en_get_strings, 1157 .get_sset_count = mlx4_en_get_sset_count, 1158 .get_ethtool_stats = mlx4_en_get_ethtool_stats, 1159 .self_test = mlx4_en_self_test, 1160 .get_wol = mlx4_en_get_wol, 1161 .set_wol = mlx4_en_set_wol, 1162 .get_msglevel = mlx4_en_get_msglevel, 1163 .set_msglevel = mlx4_en_set_msglevel, 1164 .get_coalesce = mlx4_en_get_coalesce, 1165 .set_coalesce = mlx4_en_set_coalesce, 1166 .get_pauseparam = mlx4_en_get_pauseparam, 1167 .set_pauseparam = mlx4_en_set_pauseparam, 1168 .get_ringparam = mlx4_en_get_ringparam, 1169 .set_ringparam = mlx4_en_set_ringparam, 1170 .get_rxnfc = mlx4_en_get_rxnfc, 1171 .set_rxnfc = mlx4_en_set_rxnfc, 1172 .get_rxfh_indir_size = mlx4_en_get_rxfh_indir_size, 1173 .get_rxfh_indir = mlx4_en_get_rxfh_indir, 1174 .set_rxfh_indir = mlx4_en_set_rxfh_indir, 1175 .get_channels = mlx4_en_get_channels, 1176 .set_channels = mlx4_en_set_channels, 1177}; 1178 1179 1180 1181 1182 1183