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