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/mlx4/device.h> 39 #include <linux/in.h> 40 #include <net/ip.h> 41 #include <linux/bitmap.h> 42 #include <linux/mii.h> 43 44 #include "mlx4_en.h" 45 #include "en_port.h" 46 47 #define EN_ETHTOOL_QP_ATTACH (1ull << 63) 48 #define EN_ETHTOOL_SHORT_MASK cpu_to_be16(0xffff) 49 #define EN_ETHTOOL_WORD_MASK cpu_to_be32(0xffffffff) 50 51 int mlx4_en_moderation_update(struct mlx4_en_priv *priv) 52 { 53 int i, t; 54 int err = 0; 55 56 for (t = 0 ; t < MLX4_EN_NUM_TX_TYPES; t++) { 57 for (i = 0; i < priv->tx_ring_num[t]; i++) { 58 priv->tx_cq[t][i]->moder_cnt = priv->tx_frames; 59 priv->tx_cq[t][i]->moder_time = priv->tx_usecs; 60 if (priv->port_up) { 61 err = mlx4_en_set_cq_moder(priv, 62 priv->tx_cq[t][i]); 63 if (err) 64 return err; 65 } 66 } 67 } 68 69 if (priv->adaptive_rx_coal) 70 return 0; 71 72 for (i = 0; i < priv->rx_ring_num; i++) { 73 priv->rx_cq[i]->moder_cnt = priv->rx_frames; 74 priv->rx_cq[i]->moder_time = priv->rx_usecs; 75 priv->last_moder_time[i] = MLX4_EN_AUTO_CONF; 76 if (priv->port_up) { 77 err = mlx4_en_set_cq_moder(priv, priv->rx_cq[i]); 78 if (err) 79 return err; 80 } 81 } 82 83 return err; 84 } 85 86 static void 87 mlx4_en_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *drvinfo) 88 { 89 struct mlx4_en_priv *priv = netdev_priv(dev); 90 struct mlx4_en_dev *mdev = priv->mdev; 91 92 strlcpy(drvinfo->driver, DRV_NAME, sizeof(drvinfo->driver)); 93 strlcpy(drvinfo->version, DRV_VERSION, 94 sizeof(drvinfo->version)); 95 snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version), 96 "%d.%d.%d", 97 (u16) (mdev->dev->caps.fw_ver >> 32), 98 (u16) ((mdev->dev->caps.fw_ver >> 16) & 0xffff), 99 (u16) (mdev->dev->caps.fw_ver & 0xffff)); 100 strlcpy(drvinfo->bus_info, pci_name(mdev->dev->persist->pdev), 101 sizeof(drvinfo->bus_info)); 102 } 103 104 static const char mlx4_en_priv_flags[][ETH_GSTRING_LEN] = { 105 "blueflame", 106 "phv-bit" 107 }; 108 109 static const char main_strings[][ETH_GSTRING_LEN] = { 110 /* main statistics */ 111 "rx_packets", "tx_packets", "rx_bytes", "tx_bytes", "rx_errors", 112 "tx_errors", "rx_dropped", "tx_dropped", "multicast", "collisions", 113 "rx_length_errors", "rx_over_errors", "rx_crc_errors", 114 "rx_frame_errors", "rx_fifo_errors", "rx_missed_errors", 115 "tx_aborted_errors", "tx_carrier_errors", "tx_fifo_errors", 116 "tx_heartbeat_errors", "tx_window_errors", 117 118 /* port statistics */ 119 "tso_packets", 120 "xmit_more", 121 "queue_stopped", "wake_queue", "tx_timeout", "rx_alloc_pages", 122 "rx_csum_good", "rx_csum_none", "rx_csum_complete", "tx_chksum_offload", 123 124 /* pf statistics */ 125 "pf_rx_packets", 126 "pf_rx_bytes", 127 "pf_tx_packets", 128 "pf_tx_bytes", 129 130 /* priority flow control statistics rx */ 131 "rx_pause_prio_0", "rx_pause_duration_prio_0", 132 "rx_pause_transition_prio_0", 133 "rx_pause_prio_1", "rx_pause_duration_prio_1", 134 "rx_pause_transition_prio_1", 135 "rx_pause_prio_2", "rx_pause_duration_prio_2", 136 "rx_pause_transition_prio_2", 137 "rx_pause_prio_3", "rx_pause_duration_prio_3", 138 "rx_pause_transition_prio_3", 139 "rx_pause_prio_4", "rx_pause_duration_prio_4", 140 "rx_pause_transition_prio_4", 141 "rx_pause_prio_5", "rx_pause_duration_prio_5", 142 "rx_pause_transition_prio_5", 143 "rx_pause_prio_6", "rx_pause_duration_prio_6", 144 "rx_pause_transition_prio_6", 145 "rx_pause_prio_7", "rx_pause_duration_prio_7", 146 "rx_pause_transition_prio_7", 147 148 /* flow control statistics rx */ 149 "rx_pause", "rx_pause_duration", "rx_pause_transition", 150 151 /* priority flow control statistics tx */ 152 "tx_pause_prio_0", "tx_pause_duration_prio_0", 153 "tx_pause_transition_prio_0", 154 "tx_pause_prio_1", "tx_pause_duration_prio_1", 155 "tx_pause_transition_prio_1", 156 "tx_pause_prio_2", "tx_pause_duration_prio_2", 157 "tx_pause_transition_prio_2", 158 "tx_pause_prio_3", "tx_pause_duration_prio_3", 159 "tx_pause_transition_prio_3", 160 "tx_pause_prio_4", "tx_pause_duration_prio_4", 161 "tx_pause_transition_prio_4", 162 "tx_pause_prio_5", "tx_pause_duration_prio_5", 163 "tx_pause_transition_prio_5", 164 "tx_pause_prio_6", "tx_pause_duration_prio_6", 165 "tx_pause_transition_prio_6", 166 "tx_pause_prio_7", "tx_pause_duration_prio_7", 167 "tx_pause_transition_prio_7", 168 169 /* flow control statistics tx */ 170 "tx_pause", "tx_pause_duration", "tx_pause_transition", 171 172 /* packet statistics */ 173 "rx_multicast_packets", 174 "rx_broadcast_packets", 175 "rx_jabbers", 176 "rx_in_range_length_error", 177 "rx_out_range_length_error", 178 "tx_multicast_packets", 179 "tx_broadcast_packets", 180 "rx_prio_0_packets", "rx_prio_0_bytes", 181 "rx_prio_1_packets", "rx_prio_1_bytes", 182 "rx_prio_2_packets", "rx_prio_2_bytes", 183 "rx_prio_3_packets", "rx_prio_3_bytes", 184 "rx_prio_4_packets", "rx_prio_4_bytes", 185 "rx_prio_5_packets", "rx_prio_5_bytes", 186 "rx_prio_6_packets", "rx_prio_6_bytes", 187 "rx_prio_7_packets", "rx_prio_7_bytes", 188 "rx_novlan_packets", "rx_novlan_bytes", 189 "tx_prio_0_packets", "tx_prio_0_bytes", 190 "tx_prio_1_packets", "tx_prio_1_bytes", 191 "tx_prio_2_packets", "tx_prio_2_bytes", 192 "tx_prio_3_packets", "tx_prio_3_bytes", 193 "tx_prio_4_packets", "tx_prio_4_bytes", 194 "tx_prio_5_packets", "tx_prio_5_bytes", 195 "tx_prio_6_packets", "tx_prio_6_bytes", 196 "tx_prio_7_packets", "tx_prio_7_bytes", 197 "tx_novlan_packets", "tx_novlan_bytes", 198 199 /* xdp statistics */ 200 "rx_xdp_drop", 201 "rx_xdp_redirect", 202 "rx_xdp_redirect_fail", 203 "rx_xdp_tx", 204 "rx_xdp_tx_full", 205 206 /* phy statistics */ 207 "rx_packets_phy", "rx_bytes_phy", 208 "tx_packets_phy", "tx_bytes_phy", 209 }; 210 211 static const char mlx4_en_test_names[][ETH_GSTRING_LEN]= { 212 "Interrupt Test", 213 "Link Test", 214 "Speed Test", 215 "Register Test", 216 "Loopback Test", 217 }; 218 219 static u32 mlx4_en_get_msglevel(struct net_device *dev) 220 { 221 return ((struct mlx4_en_priv *) netdev_priv(dev))->msg_enable; 222 } 223 224 static void mlx4_en_set_msglevel(struct net_device *dev, u32 val) 225 { 226 ((struct mlx4_en_priv *) netdev_priv(dev))->msg_enable = val; 227 } 228 229 static void mlx4_en_get_wol(struct net_device *netdev, 230 struct ethtool_wolinfo *wol) 231 { 232 struct mlx4_en_priv *priv = netdev_priv(netdev); 233 struct mlx4_caps *caps = &priv->mdev->dev->caps; 234 int err = 0; 235 u64 config = 0; 236 u64 mask; 237 238 if ((priv->port < 1) || (priv->port > 2)) { 239 en_err(priv, "Failed to get WoL information\n"); 240 return; 241 } 242 243 mask = (priv->port == 1) ? MLX4_DEV_CAP_FLAG_WOL_PORT1 : 244 MLX4_DEV_CAP_FLAG_WOL_PORT2; 245 246 if (!(caps->flags & mask)) { 247 wol->supported = 0; 248 wol->wolopts = 0; 249 return; 250 } 251 252 if (caps->wol_port[priv->port]) 253 wol->supported = WAKE_MAGIC; 254 else 255 wol->supported = 0; 256 257 err = mlx4_wol_read(priv->mdev->dev, &config, priv->port); 258 if (err) { 259 en_err(priv, "Failed to get WoL information\n"); 260 return; 261 } 262 263 if ((config & MLX4_EN_WOL_ENABLED) && (config & MLX4_EN_WOL_MAGIC)) 264 wol->wolopts = WAKE_MAGIC; 265 else 266 wol->wolopts = 0; 267 } 268 269 static int mlx4_en_set_wol(struct net_device *netdev, 270 struct ethtool_wolinfo *wol) 271 { 272 struct mlx4_en_priv *priv = netdev_priv(netdev); 273 u64 config = 0; 274 int err = 0; 275 u64 mask; 276 277 if ((priv->port < 1) || (priv->port > 2)) 278 return -EOPNOTSUPP; 279 280 mask = (priv->port == 1) ? MLX4_DEV_CAP_FLAG_WOL_PORT1 : 281 MLX4_DEV_CAP_FLAG_WOL_PORT2; 282 283 if (!(priv->mdev->dev->caps.flags & mask)) 284 return -EOPNOTSUPP; 285 286 if (wol->supported & ~WAKE_MAGIC) 287 return -EINVAL; 288 289 err = mlx4_wol_read(priv->mdev->dev, &config, priv->port); 290 if (err) { 291 en_err(priv, "Failed to get WoL info, unable to modify\n"); 292 return err; 293 } 294 295 if (wol->wolopts & WAKE_MAGIC) { 296 config |= MLX4_EN_WOL_DO_MODIFY | MLX4_EN_WOL_ENABLED | 297 MLX4_EN_WOL_MAGIC; 298 } else { 299 config &= ~(MLX4_EN_WOL_ENABLED | MLX4_EN_WOL_MAGIC); 300 config |= MLX4_EN_WOL_DO_MODIFY; 301 } 302 303 err = mlx4_wol_write(priv->mdev->dev, config, priv->port); 304 if (err) 305 en_err(priv, "Failed to set WoL information\n"); 306 307 return err; 308 } 309 310 struct bitmap_iterator { 311 unsigned long *stats_bitmap; 312 unsigned int count; 313 unsigned int iterator; 314 bool advance_array; /* if set, force no increments */ 315 }; 316 317 static inline void bitmap_iterator_init(struct bitmap_iterator *h, 318 unsigned long *stats_bitmap, 319 int count) 320 { 321 h->iterator = 0; 322 h->advance_array = !bitmap_empty(stats_bitmap, count); 323 h->count = h->advance_array ? bitmap_weight(stats_bitmap, count) 324 : count; 325 h->stats_bitmap = stats_bitmap; 326 } 327 328 static inline int bitmap_iterator_test(struct bitmap_iterator *h) 329 { 330 return !h->advance_array ? 1 : test_bit(h->iterator, h->stats_bitmap); 331 } 332 333 static inline int bitmap_iterator_inc(struct bitmap_iterator *h) 334 { 335 return h->iterator++; 336 } 337 338 static inline unsigned int 339 bitmap_iterator_count(struct bitmap_iterator *h) 340 { 341 return h->count; 342 } 343 344 static int mlx4_en_get_sset_count(struct net_device *dev, int sset) 345 { 346 struct mlx4_en_priv *priv = netdev_priv(dev); 347 struct bitmap_iterator it; 348 349 bitmap_iterator_init(&it, priv->stats_bitmap.bitmap, NUM_ALL_STATS); 350 351 switch (sset) { 352 case ETH_SS_STATS: 353 return bitmap_iterator_count(&it) + 354 (priv->tx_ring_num[TX] * 2) + 355 (priv->rx_ring_num * (3 + NUM_XDP_STATS)); 356 case ETH_SS_TEST: 357 return MLX4_EN_NUM_SELF_TEST - !(priv->mdev->dev->caps.flags 358 & MLX4_DEV_CAP_FLAG_UC_LOOPBACK) * 2; 359 case ETH_SS_PRIV_FLAGS: 360 return ARRAY_SIZE(mlx4_en_priv_flags); 361 default: 362 return -EOPNOTSUPP; 363 } 364 } 365 366 static void mlx4_en_get_ethtool_stats(struct net_device *dev, 367 struct ethtool_stats *stats, uint64_t *data) 368 { 369 struct mlx4_en_priv *priv = netdev_priv(dev); 370 int index = 0; 371 int i; 372 struct bitmap_iterator it; 373 374 bitmap_iterator_init(&it, priv->stats_bitmap.bitmap, NUM_ALL_STATS); 375 376 spin_lock_bh(&priv->stats_lock); 377 378 mlx4_en_fold_software_stats(dev); 379 380 for (i = 0; i < NUM_MAIN_STATS; i++, bitmap_iterator_inc(&it)) 381 if (bitmap_iterator_test(&it)) 382 data[index++] = ((unsigned long *)&dev->stats)[i]; 383 384 for (i = 0; i < NUM_PORT_STATS; i++, bitmap_iterator_inc(&it)) 385 if (bitmap_iterator_test(&it)) 386 data[index++] = ((unsigned long *)&priv->port_stats)[i]; 387 388 for (i = 0; i < NUM_PF_STATS; i++, bitmap_iterator_inc(&it)) 389 if (bitmap_iterator_test(&it)) 390 data[index++] = 391 ((unsigned long *)&priv->pf_stats)[i]; 392 393 for (i = 0; i < NUM_FLOW_PRIORITY_STATS_RX; 394 i++, bitmap_iterator_inc(&it)) 395 if (bitmap_iterator_test(&it)) 396 data[index++] = 397 ((u64 *)&priv->rx_priority_flowstats)[i]; 398 399 for (i = 0; i < NUM_FLOW_STATS_RX; i++, bitmap_iterator_inc(&it)) 400 if (bitmap_iterator_test(&it)) 401 data[index++] = ((u64 *)&priv->rx_flowstats)[i]; 402 403 for (i = 0; i < NUM_FLOW_PRIORITY_STATS_TX; 404 i++, bitmap_iterator_inc(&it)) 405 if (bitmap_iterator_test(&it)) 406 data[index++] = 407 ((u64 *)&priv->tx_priority_flowstats)[i]; 408 409 for (i = 0; i < NUM_FLOW_STATS_TX; i++, bitmap_iterator_inc(&it)) 410 if (bitmap_iterator_test(&it)) 411 data[index++] = ((u64 *)&priv->tx_flowstats)[i]; 412 413 for (i = 0; i < NUM_PKT_STATS; i++, bitmap_iterator_inc(&it)) 414 if (bitmap_iterator_test(&it)) 415 data[index++] = ((unsigned long *)&priv->pkstats)[i]; 416 417 for (i = 0; i < NUM_XDP_STATS; i++, bitmap_iterator_inc(&it)) 418 if (bitmap_iterator_test(&it)) 419 data[index++] = ((unsigned long *)&priv->xdp_stats)[i]; 420 421 for (i = 0; i < NUM_PHY_STATS; i++, bitmap_iterator_inc(&it)) 422 if (bitmap_iterator_test(&it)) 423 data[index++] = ((unsigned long *)&priv->phy_stats)[i]; 424 425 for (i = 0; i < priv->tx_ring_num[TX]; i++) { 426 data[index++] = priv->tx_ring[TX][i]->packets; 427 data[index++] = priv->tx_ring[TX][i]->bytes; 428 } 429 for (i = 0; i < priv->rx_ring_num; i++) { 430 data[index++] = priv->rx_ring[i]->packets; 431 data[index++] = priv->rx_ring[i]->bytes; 432 data[index++] = priv->rx_ring[i]->dropped; 433 data[index++] = priv->rx_ring[i]->xdp_drop; 434 data[index++] = priv->rx_ring[i]->xdp_redirect; 435 data[index++] = priv->rx_ring[i]->xdp_redirect_fail; 436 data[index++] = priv->rx_ring[i]->xdp_tx; 437 data[index++] = priv->rx_ring[i]->xdp_tx_full; 438 } 439 spin_unlock_bh(&priv->stats_lock); 440 441 } 442 443 static void mlx4_en_self_test(struct net_device *dev, 444 struct ethtool_test *etest, u64 *buf) 445 { 446 mlx4_en_ex_selftest(dev, &etest->flags, buf); 447 } 448 449 static void mlx4_en_get_strings(struct net_device *dev, 450 uint32_t stringset, uint8_t *data) 451 { 452 struct mlx4_en_priv *priv = netdev_priv(dev); 453 int index = 0; 454 int i, strings = 0; 455 struct bitmap_iterator it; 456 457 bitmap_iterator_init(&it, priv->stats_bitmap.bitmap, NUM_ALL_STATS); 458 459 switch (stringset) { 460 case ETH_SS_TEST: 461 for (i = 0; i < MLX4_EN_NUM_SELF_TEST - 2; i++) 462 strcpy(data + i * ETH_GSTRING_LEN, mlx4_en_test_names[i]); 463 if (priv->mdev->dev->caps.flags & MLX4_DEV_CAP_FLAG_UC_LOOPBACK) 464 for (; i < MLX4_EN_NUM_SELF_TEST; i++) 465 strcpy(data + i * ETH_GSTRING_LEN, mlx4_en_test_names[i]); 466 break; 467 468 case ETH_SS_STATS: 469 /* Add main counters */ 470 for (i = 0; i < NUM_MAIN_STATS; i++, strings++, 471 bitmap_iterator_inc(&it)) 472 if (bitmap_iterator_test(&it)) 473 strcpy(data + (index++) * ETH_GSTRING_LEN, 474 main_strings[strings]); 475 476 for (i = 0; i < NUM_PORT_STATS; i++, strings++, 477 bitmap_iterator_inc(&it)) 478 if (bitmap_iterator_test(&it)) 479 strcpy(data + (index++) * ETH_GSTRING_LEN, 480 main_strings[strings]); 481 482 for (i = 0; i < NUM_PF_STATS; i++, strings++, 483 bitmap_iterator_inc(&it)) 484 if (bitmap_iterator_test(&it)) 485 strcpy(data + (index++) * ETH_GSTRING_LEN, 486 main_strings[strings]); 487 488 for (i = 0; i < NUM_FLOW_STATS; i++, strings++, 489 bitmap_iterator_inc(&it)) 490 if (bitmap_iterator_test(&it)) 491 strcpy(data + (index++) * ETH_GSTRING_LEN, 492 main_strings[strings]); 493 494 for (i = 0; i < NUM_PKT_STATS; i++, strings++, 495 bitmap_iterator_inc(&it)) 496 if (bitmap_iterator_test(&it)) 497 strcpy(data + (index++) * ETH_GSTRING_LEN, 498 main_strings[strings]); 499 500 for (i = 0; i < NUM_XDP_STATS; i++, strings++, 501 bitmap_iterator_inc(&it)) 502 if (bitmap_iterator_test(&it)) 503 strcpy(data + (index++) * ETH_GSTRING_LEN, 504 main_strings[strings]); 505 506 for (i = 0; i < NUM_PHY_STATS; i++, strings++, 507 bitmap_iterator_inc(&it)) 508 if (bitmap_iterator_test(&it)) 509 strcpy(data + (index++) * ETH_GSTRING_LEN, 510 main_strings[strings]); 511 512 for (i = 0; i < priv->tx_ring_num[TX]; i++) { 513 sprintf(data + (index++) * ETH_GSTRING_LEN, 514 "tx%d_packets", i); 515 sprintf(data + (index++) * ETH_GSTRING_LEN, 516 "tx%d_bytes", i); 517 } 518 for (i = 0; i < priv->rx_ring_num; i++) { 519 sprintf(data + (index++) * ETH_GSTRING_LEN, 520 "rx%d_packets", i); 521 sprintf(data + (index++) * ETH_GSTRING_LEN, 522 "rx%d_bytes", i); 523 sprintf(data + (index++) * ETH_GSTRING_LEN, 524 "rx%d_dropped", i); 525 sprintf(data + (index++) * ETH_GSTRING_LEN, 526 "rx%d_xdp_drop", i); 527 sprintf(data + (index++) * ETH_GSTRING_LEN, 528 "rx%d_xdp_redirect", i); 529 sprintf(data + (index++) * ETH_GSTRING_LEN, 530 "rx%d_xdp_redirect_fail", i); 531 sprintf(data + (index++) * ETH_GSTRING_LEN, 532 "rx%d_xdp_tx", i); 533 sprintf(data + (index++) * ETH_GSTRING_LEN, 534 "rx%d_xdp_tx_full", i); 535 } 536 break; 537 case ETH_SS_PRIV_FLAGS: 538 for (i = 0; i < ARRAY_SIZE(mlx4_en_priv_flags); i++) 539 strcpy(data + i * ETH_GSTRING_LEN, 540 mlx4_en_priv_flags[i]); 541 break; 542 543 } 544 } 545 546 static u32 mlx4_en_autoneg_get(struct net_device *dev) 547 { 548 struct mlx4_en_priv *priv = netdev_priv(dev); 549 struct mlx4_en_dev *mdev = priv->mdev; 550 u32 autoneg = AUTONEG_DISABLE; 551 552 if ((mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_ETH_BACKPL_AN_REP) && 553 (priv->port_state.flags & MLX4_EN_PORT_ANE)) 554 autoneg = AUTONEG_ENABLE; 555 556 return autoneg; 557 } 558 559 static void ptys2ethtool_update_supported_port(unsigned long *mask, 560 struct mlx4_ptys_reg *ptys_reg) 561 { 562 u32 eth_proto = be32_to_cpu(ptys_reg->eth_proto_cap); 563 564 if (eth_proto & (MLX4_PROT_MASK(MLX4_10GBASE_T) 565 | MLX4_PROT_MASK(MLX4_1000BASE_T) 566 | MLX4_PROT_MASK(MLX4_100BASE_TX))) { 567 __set_bit(ETHTOOL_LINK_MODE_TP_BIT, mask); 568 } else if (eth_proto & (MLX4_PROT_MASK(MLX4_10GBASE_CR) 569 | MLX4_PROT_MASK(MLX4_10GBASE_SR) 570 | MLX4_PROT_MASK(MLX4_56GBASE_SR4) 571 | MLX4_PROT_MASK(MLX4_40GBASE_CR4) 572 | MLX4_PROT_MASK(MLX4_40GBASE_SR4) 573 | MLX4_PROT_MASK(MLX4_1000BASE_CX_SGMII))) { 574 __set_bit(ETHTOOL_LINK_MODE_FIBRE_BIT, mask); 575 } else if (eth_proto & (MLX4_PROT_MASK(MLX4_56GBASE_KR4) 576 | MLX4_PROT_MASK(MLX4_40GBASE_KR4) 577 | MLX4_PROT_MASK(MLX4_20GBASE_KR2) 578 | MLX4_PROT_MASK(MLX4_10GBASE_KR) 579 | MLX4_PROT_MASK(MLX4_10GBASE_KX4) 580 | MLX4_PROT_MASK(MLX4_1000BASE_KX))) { 581 __set_bit(ETHTOOL_LINK_MODE_Backplane_BIT, mask); 582 } 583 } 584 585 static u32 ptys_get_active_port(struct mlx4_ptys_reg *ptys_reg) 586 { 587 u32 eth_proto = be32_to_cpu(ptys_reg->eth_proto_oper); 588 589 if (!eth_proto) /* link down */ 590 eth_proto = be32_to_cpu(ptys_reg->eth_proto_cap); 591 592 if (eth_proto & (MLX4_PROT_MASK(MLX4_10GBASE_T) 593 | MLX4_PROT_MASK(MLX4_1000BASE_T) 594 | MLX4_PROT_MASK(MLX4_100BASE_TX))) { 595 return PORT_TP; 596 } 597 598 if (eth_proto & (MLX4_PROT_MASK(MLX4_10GBASE_SR) 599 | MLX4_PROT_MASK(MLX4_56GBASE_SR4) 600 | MLX4_PROT_MASK(MLX4_40GBASE_SR4) 601 | MLX4_PROT_MASK(MLX4_1000BASE_CX_SGMII))) { 602 return PORT_FIBRE; 603 } 604 605 if (eth_proto & (MLX4_PROT_MASK(MLX4_10GBASE_CR) 606 | MLX4_PROT_MASK(MLX4_56GBASE_CR4) 607 | MLX4_PROT_MASK(MLX4_40GBASE_CR4))) { 608 return PORT_DA; 609 } 610 611 if (eth_proto & (MLX4_PROT_MASK(MLX4_56GBASE_KR4) 612 | MLX4_PROT_MASK(MLX4_40GBASE_KR4) 613 | MLX4_PROT_MASK(MLX4_20GBASE_KR2) 614 | MLX4_PROT_MASK(MLX4_10GBASE_KR) 615 | MLX4_PROT_MASK(MLX4_10GBASE_KX4) 616 | MLX4_PROT_MASK(MLX4_1000BASE_KX))) { 617 return PORT_NONE; 618 } 619 return PORT_OTHER; 620 } 621 622 #define MLX4_LINK_MODES_SZ \ 623 (sizeof_field(struct mlx4_ptys_reg, eth_proto_cap) * 8) 624 625 enum ethtool_report { 626 SUPPORTED = 0, 627 ADVERTISED = 1, 628 }; 629 630 struct ptys2ethtool_config { 631 __ETHTOOL_DECLARE_LINK_MODE_MASK(supported); 632 __ETHTOOL_DECLARE_LINK_MODE_MASK(advertised); 633 u32 speed; 634 }; 635 636 static unsigned long *ptys2ethtool_link_mode(struct ptys2ethtool_config *cfg, 637 enum ethtool_report report) 638 { 639 switch (report) { 640 case SUPPORTED: 641 return cfg->supported; 642 case ADVERTISED: 643 return cfg->advertised; 644 } 645 return NULL; 646 } 647 648 #define MLX4_BUILD_PTYS2ETHTOOL_CONFIG(reg_, speed_, ...) \ 649 ({ \ 650 struct ptys2ethtool_config *cfg; \ 651 static const unsigned int modes[] = { __VA_ARGS__ }; \ 652 unsigned int i; \ 653 cfg = &ptys2ethtool_map[reg_]; \ 654 cfg->speed = speed_; \ 655 linkmode_zero(cfg->supported); \ 656 linkmode_zero(cfg->advertised); \ 657 for (i = 0 ; i < ARRAY_SIZE(modes) ; ++i) { \ 658 __set_bit(modes[i], cfg->supported); \ 659 __set_bit(modes[i], cfg->advertised); \ 660 } \ 661 }) 662 663 /* Translates mlx4 link mode to equivalent ethtool Link modes/speed */ 664 static struct ptys2ethtool_config ptys2ethtool_map[MLX4_LINK_MODES_SZ]; 665 666 void __init mlx4_en_init_ptys2ethtool_map(void) 667 { 668 MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_100BASE_TX, SPEED_100, 669 ETHTOOL_LINK_MODE_100baseT_Full_BIT); 670 MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_1000BASE_T, SPEED_1000, 671 ETHTOOL_LINK_MODE_1000baseT_Full_BIT); 672 MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_1000BASE_CX_SGMII, SPEED_1000, 673 ETHTOOL_LINK_MODE_1000baseX_Full_BIT); 674 MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_1000BASE_KX, SPEED_1000, 675 ETHTOOL_LINK_MODE_1000baseKX_Full_BIT); 676 MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_10GBASE_T, SPEED_10000, 677 ETHTOOL_LINK_MODE_10000baseT_Full_BIT); 678 MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_10GBASE_CX4, SPEED_10000, 679 ETHTOOL_LINK_MODE_10000baseKX4_Full_BIT); 680 MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_10GBASE_KX4, SPEED_10000, 681 ETHTOOL_LINK_MODE_10000baseKX4_Full_BIT); 682 MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_10GBASE_KR, SPEED_10000, 683 ETHTOOL_LINK_MODE_10000baseKR_Full_BIT); 684 MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_10GBASE_CR, SPEED_10000, 685 ETHTOOL_LINK_MODE_10000baseCR_Full_BIT); 686 MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_10GBASE_SR, SPEED_10000, 687 ETHTOOL_LINK_MODE_10000baseSR_Full_BIT); 688 MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_20GBASE_KR2, SPEED_20000, 689 ETHTOOL_LINK_MODE_20000baseMLD2_Full_BIT, 690 ETHTOOL_LINK_MODE_20000baseKR2_Full_BIT); 691 MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_40GBASE_CR4, SPEED_40000, 692 ETHTOOL_LINK_MODE_40000baseCR4_Full_BIT); 693 MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_40GBASE_KR4, SPEED_40000, 694 ETHTOOL_LINK_MODE_40000baseKR4_Full_BIT); 695 MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_40GBASE_SR4, SPEED_40000, 696 ETHTOOL_LINK_MODE_40000baseSR4_Full_BIT); 697 MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_56GBASE_KR4, SPEED_56000, 698 ETHTOOL_LINK_MODE_56000baseKR4_Full_BIT); 699 MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_56GBASE_CR4, SPEED_56000, 700 ETHTOOL_LINK_MODE_56000baseCR4_Full_BIT); 701 MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_56GBASE_SR4, SPEED_56000, 702 ETHTOOL_LINK_MODE_56000baseSR4_Full_BIT); 703 }; 704 705 static void ptys2ethtool_update_link_modes(unsigned long *link_modes, 706 u32 eth_proto, 707 enum ethtool_report report) 708 { 709 int i; 710 for (i = 0; i < MLX4_LINK_MODES_SZ; i++) { 711 if (eth_proto & MLX4_PROT_MASK(i)) 712 linkmode_or(link_modes, link_modes, 713 ptys2ethtool_link_mode(&ptys2ethtool_map[i], report)); 714 } 715 } 716 717 static u32 ethtool2ptys_link_modes(const unsigned long *link_modes, 718 enum ethtool_report report) 719 { 720 int i; 721 u32 ptys_modes = 0; 722 723 for (i = 0; i < MLX4_LINK_MODES_SZ; i++) { 724 ulong *map_mode = ptys2ethtool_link_mode(&ptys2ethtool_map[i], 725 report); 726 if (linkmode_intersects(map_mode, link_modes)) 727 ptys_modes |= 1 << i; 728 } 729 return ptys_modes; 730 } 731 732 /* Convert actual speed (SPEED_XXX) to ptys link modes */ 733 static u32 speed2ptys_link_modes(u32 speed) 734 { 735 int i; 736 u32 ptys_modes = 0; 737 738 for (i = 0; i < MLX4_LINK_MODES_SZ; i++) { 739 if (ptys2ethtool_map[i].speed == speed) 740 ptys_modes |= 1 << i; 741 } 742 return ptys_modes; 743 } 744 745 static int 746 ethtool_get_ptys_link_ksettings(struct net_device *dev, 747 struct ethtool_link_ksettings *link_ksettings) 748 { 749 struct mlx4_en_priv *priv = netdev_priv(dev); 750 struct mlx4_ptys_reg ptys_reg; 751 u32 eth_proto; 752 int ret; 753 754 memset(&ptys_reg, 0, sizeof(ptys_reg)); 755 ptys_reg.local_port = priv->port; 756 ptys_reg.proto_mask = MLX4_PTYS_EN; 757 ret = mlx4_ACCESS_PTYS_REG(priv->mdev->dev, 758 MLX4_ACCESS_REG_QUERY, &ptys_reg); 759 if (ret) { 760 en_warn(priv, "Failed to run mlx4_ACCESS_PTYS_REG status(%x)", 761 ret); 762 return ret; 763 } 764 en_dbg(DRV, priv, "ptys_reg.proto_mask %x\n", 765 ptys_reg.proto_mask); 766 en_dbg(DRV, priv, "ptys_reg.eth_proto_cap %x\n", 767 be32_to_cpu(ptys_reg.eth_proto_cap)); 768 en_dbg(DRV, priv, "ptys_reg.eth_proto_admin %x\n", 769 be32_to_cpu(ptys_reg.eth_proto_admin)); 770 en_dbg(DRV, priv, "ptys_reg.eth_proto_oper %x\n", 771 be32_to_cpu(ptys_reg.eth_proto_oper)); 772 en_dbg(DRV, priv, "ptys_reg.eth_proto_lp_adv %x\n", 773 be32_to_cpu(ptys_reg.eth_proto_lp_adv)); 774 775 /* reset supported/advertising masks */ 776 ethtool_link_ksettings_zero_link_mode(link_ksettings, supported); 777 ethtool_link_ksettings_zero_link_mode(link_ksettings, advertising); 778 779 ptys2ethtool_update_supported_port(link_ksettings->link_modes.supported, 780 &ptys_reg); 781 782 eth_proto = be32_to_cpu(ptys_reg.eth_proto_cap); 783 ptys2ethtool_update_link_modes(link_ksettings->link_modes.supported, 784 eth_proto, SUPPORTED); 785 786 eth_proto = be32_to_cpu(ptys_reg.eth_proto_admin); 787 ptys2ethtool_update_link_modes(link_ksettings->link_modes.advertising, 788 eth_proto, ADVERTISED); 789 790 ethtool_link_ksettings_add_link_mode(link_ksettings, supported, 791 Pause); 792 ethtool_link_ksettings_add_link_mode(link_ksettings, supported, 793 Asym_Pause); 794 795 if (priv->prof->tx_pause) 796 ethtool_link_ksettings_add_link_mode(link_ksettings, 797 advertising, Pause); 798 if (priv->prof->tx_pause ^ priv->prof->rx_pause) 799 ethtool_link_ksettings_add_link_mode(link_ksettings, 800 advertising, Asym_Pause); 801 802 link_ksettings->base.port = ptys_get_active_port(&ptys_reg); 803 804 if (mlx4_en_autoneg_get(dev)) { 805 ethtool_link_ksettings_add_link_mode(link_ksettings, 806 supported, Autoneg); 807 ethtool_link_ksettings_add_link_mode(link_ksettings, 808 advertising, Autoneg); 809 } 810 811 link_ksettings->base.autoneg 812 = (priv->port_state.flags & MLX4_EN_PORT_ANC) ? 813 AUTONEG_ENABLE : AUTONEG_DISABLE; 814 815 eth_proto = be32_to_cpu(ptys_reg.eth_proto_lp_adv); 816 817 ethtool_link_ksettings_zero_link_mode(link_ksettings, lp_advertising); 818 ptys2ethtool_update_link_modes( 819 link_ksettings->link_modes.lp_advertising, 820 eth_proto, ADVERTISED); 821 if (priv->port_state.flags & MLX4_EN_PORT_ANC) 822 ethtool_link_ksettings_add_link_mode(link_ksettings, 823 lp_advertising, Autoneg); 824 825 link_ksettings->base.phy_address = 0; 826 link_ksettings->base.mdio_support = 0; 827 link_ksettings->base.eth_tp_mdix = ETH_TP_MDI_INVALID; 828 link_ksettings->base.eth_tp_mdix_ctrl = ETH_TP_MDI_AUTO; 829 830 return ret; 831 } 832 833 static void 834 ethtool_get_default_link_ksettings( 835 struct net_device *dev, struct ethtool_link_ksettings *link_ksettings) 836 { 837 struct mlx4_en_priv *priv = netdev_priv(dev); 838 int trans_type; 839 840 link_ksettings->base.autoneg = AUTONEG_DISABLE; 841 842 ethtool_link_ksettings_zero_link_mode(link_ksettings, supported); 843 ethtool_link_ksettings_add_link_mode(link_ksettings, supported, 844 10000baseT_Full); 845 846 ethtool_link_ksettings_zero_link_mode(link_ksettings, advertising); 847 ethtool_link_ksettings_add_link_mode(link_ksettings, advertising, 848 10000baseT_Full); 849 850 trans_type = priv->port_state.transceiver; 851 if (trans_type > 0 && trans_type <= 0xC) { 852 link_ksettings->base.port = PORT_FIBRE; 853 ethtool_link_ksettings_add_link_mode(link_ksettings, 854 supported, FIBRE); 855 ethtool_link_ksettings_add_link_mode(link_ksettings, 856 advertising, FIBRE); 857 } else if (trans_type == 0x80 || trans_type == 0) { 858 link_ksettings->base.port = PORT_TP; 859 ethtool_link_ksettings_add_link_mode(link_ksettings, 860 supported, TP); 861 ethtool_link_ksettings_add_link_mode(link_ksettings, 862 advertising, TP); 863 } else { 864 link_ksettings->base.port = -1; 865 } 866 } 867 868 static int 869 mlx4_en_get_link_ksettings(struct net_device *dev, 870 struct ethtool_link_ksettings *link_ksettings) 871 { 872 struct mlx4_en_priv *priv = netdev_priv(dev); 873 int ret = -EINVAL; 874 875 if (mlx4_en_QUERY_PORT(priv->mdev, priv->port)) 876 return -ENOMEM; 877 878 en_dbg(DRV, priv, "query port state.flags ANC(%x) ANE(%x)\n", 879 priv->port_state.flags & MLX4_EN_PORT_ANC, 880 priv->port_state.flags & MLX4_EN_PORT_ANE); 881 882 if (priv->mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_ETH_PROT_CTRL) 883 ret = ethtool_get_ptys_link_ksettings(dev, link_ksettings); 884 if (ret) /* ETH PROT CRTL is not supported or PTYS CMD failed */ 885 ethtool_get_default_link_ksettings(dev, link_ksettings); 886 887 if (netif_carrier_ok(dev)) { 888 link_ksettings->base.speed = priv->port_state.link_speed; 889 link_ksettings->base.duplex = DUPLEX_FULL; 890 } else { 891 link_ksettings->base.speed = SPEED_UNKNOWN; 892 link_ksettings->base.duplex = DUPLEX_UNKNOWN; 893 } 894 return 0; 895 } 896 897 /* Calculate PTYS admin according ethtool speed (SPEED_XXX) */ 898 static __be32 speed_set_ptys_admin(struct mlx4_en_priv *priv, u32 speed, 899 __be32 proto_cap) 900 { 901 __be32 proto_admin = 0; 902 903 if (!speed) { /* Speed = 0 ==> Reset Link modes */ 904 proto_admin = proto_cap; 905 en_info(priv, "Speed was set to 0, Reset advertised Link Modes to default (%x)\n", 906 be32_to_cpu(proto_cap)); 907 } else { 908 u32 ptys_link_modes = speed2ptys_link_modes(speed); 909 910 proto_admin = cpu_to_be32(ptys_link_modes) & proto_cap; 911 en_info(priv, "Setting Speed to %d\n", speed); 912 } 913 return proto_admin; 914 } 915 916 static int 917 mlx4_en_set_link_ksettings(struct net_device *dev, 918 const struct ethtool_link_ksettings *link_ksettings) 919 { 920 struct mlx4_en_priv *priv = netdev_priv(dev); 921 struct mlx4_ptys_reg ptys_reg; 922 __be32 proto_admin; 923 u8 cur_autoneg; 924 int ret; 925 926 u32 ptys_adv = ethtool2ptys_link_modes( 927 link_ksettings->link_modes.advertising, ADVERTISED); 928 const int speed = link_ksettings->base.speed; 929 930 en_dbg(DRV, priv, 931 "Set Speed=%d adv={%*pbl} autoneg=%d duplex=%d\n", 932 speed, __ETHTOOL_LINK_MODE_MASK_NBITS, 933 link_ksettings->link_modes.advertising, 934 link_ksettings->base.autoneg, 935 link_ksettings->base.duplex); 936 937 if (!(priv->mdev->dev->caps.flags2 & 938 MLX4_DEV_CAP_FLAG2_ETH_PROT_CTRL) || 939 (link_ksettings->base.duplex == DUPLEX_HALF)) 940 return -EINVAL; 941 942 memset(&ptys_reg, 0, sizeof(ptys_reg)); 943 ptys_reg.local_port = priv->port; 944 ptys_reg.proto_mask = MLX4_PTYS_EN; 945 ret = mlx4_ACCESS_PTYS_REG(priv->mdev->dev, 946 MLX4_ACCESS_REG_QUERY, &ptys_reg); 947 if (ret) { 948 en_warn(priv, "Failed to QUERY mlx4_ACCESS_PTYS_REG status(%x)\n", 949 ret); 950 return 0; 951 } 952 953 cur_autoneg = ptys_reg.flags & MLX4_PTYS_AN_DISABLE_ADMIN ? 954 AUTONEG_DISABLE : AUTONEG_ENABLE; 955 956 if (link_ksettings->base.autoneg == AUTONEG_DISABLE) { 957 proto_admin = speed_set_ptys_admin(priv, speed, 958 ptys_reg.eth_proto_cap); 959 if ((be32_to_cpu(proto_admin) & 960 (MLX4_PROT_MASK(MLX4_1000BASE_CX_SGMII) | 961 MLX4_PROT_MASK(MLX4_1000BASE_KX))) && 962 (ptys_reg.flags & MLX4_PTYS_AN_DISABLE_CAP)) 963 ptys_reg.flags |= MLX4_PTYS_AN_DISABLE_ADMIN; 964 } else { 965 proto_admin = cpu_to_be32(ptys_adv); 966 ptys_reg.flags &= ~MLX4_PTYS_AN_DISABLE_ADMIN; 967 } 968 969 proto_admin &= ptys_reg.eth_proto_cap; 970 if (!proto_admin) { 971 en_warn(priv, "Not supported link mode(s) requested, check supported link modes.\n"); 972 return -EINVAL; /* nothing to change due to bad input */ 973 } 974 975 if ((proto_admin == ptys_reg.eth_proto_admin) && 976 ((ptys_reg.flags & MLX4_PTYS_AN_DISABLE_CAP) && 977 (link_ksettings->base.autoneg == cur_autoneg))) 978 return 0; /* Nothing to change */ 979 980 en_dbg(DRV, priv, "mlx4_ACCESS_PTYS_REG SET: ptys_reg.eth_proto_admin = 0x%x\n", 981 be32_to_cpu(proto_admin)); 982 983 ptys_reg.eth_proto_admin = proto_admin; 984 ret = mlx4_ACCESS_PTYS_REG(priv->mdev->dev, MLX4_ACCESS_REG_WRITE, 985 &ptys_reg); 986 if (ret) { 987 en_warn(priv, "Failed to write mlx4_ACCESS_PTYS_REG eth_proto_admin(0x%x) status(0x%x)", 988 be32_to_cpu(ptys_reg.eth_proto_admin), ret); 989 return ret; 990 } 991 992 mutex_lock(&priv->mdev->state_lock); 993 if (priv->port_up) { 994 en_warn(priv, "Port link mode changed, restarting port...\n"); 995 mlx4_en_stop_port(dev, 1); 996 if (mlx4_en_start_port(dev)) 997 en_err(priv, "Failed restarting port %d\n", priv->port); 998 } 999 mutex_unlock(&priv->mdev->state_lock); 1000 return 0; 1001 } 1002 1003 static int mlx4_en_get_coalesce(struct net_device *dev, 1004 struct ethtool_coalesce *coal, 1005 struct kernel_ethtool_coalesce *kernel_coal, 1006 struct netlink_ext_ack *extack) 1007 { 1008 struct mlx4_en_priv *priv = netdev_priv(dev); 1009 1010 coal->tx_coalesce_usecs = priv->tx_usecs; 1011 coal->tx_max_coalesced_frames = priv->tx_frames; 1012 coal->tx_max_coalesced_frames_irq = priv->tx_work_limit; 1013 1014 coal->rx_coalesce_usecs = priv->rx_usecs; 1015 coal->rx_max_coalesced_frames = priv->rx_frames; 1016 1017 coal->pkt_rate_low = priv->pkt_rate_low; 1018 coal->rx_coalesce_usecs_low = priv->rx_usecs_low; 1019 coal->pkt_rate_high = priv->pkt_rate_high; 1020 coal->rx_coalesce_usecs_high = priv->rx_usecs_high; 1021 coal->rate_sample_interval = priv->sample_interval; 1022 coal->use_adaptive_rx_coalesce = priv->adaptive_rx_coal; 1023 1024 return 0; 1025 } 1026 1027 static int mlx4_en_set_coalesce(struct net_device *dev, 1028 struct ethtool_coalesce *coal, 1029 struct kernel_ethtool_coalesce *kernel_coal, 1030 struct netlink_ext_ack *extack) 1031 { 1032 struct mlx4_en_priv *priv = netdev_priv(dev); 1033 1034 if (!coal->tx_max_coalesced_frames_irq) 1035 return -EINVAL; 1036 1037 if (coal->tx_coalesce_usecs > MLX4_EN_MAX_COAL_TIME || 1038 coal->rx_coalesce_usecs > MLX4_EN_MAX_COAL_TIME || 1039 coal->rx_coalesce_usecs_low > MLX4_EN_MAX_COAL_TIME || 1040 coal->rx_coalesce_usecs_high > MLX4_EN_MAX_COAL_TIME) { 1041 netdev_info(dev, "%s: maximum coalesce time supported is %d usecs\n", 1042 __func__, MLX4_EN_MAX_COAL_TIME); 1043 return -ERANGE; 1044 } 1045 1046 if (coal->tx_max_coalesced_frames > MLX4_EN_MAX_COAL_PKTS || 1047 coal->rx_max_coalesced_frames > MLX4_EN_MAX_COAL_PKTS) { 1048 netdev_info(dev, "%s: maximum coalesced frames supported is %d\n", 1049 __func__, MLX4_EN_MAX_COAL_PKTS); 1050 return -ERANGE; 1051 } 1052 1053 priv->rx_frames = (coal->rx_max_coalesced_frames == 1054 MLX4_EN_AUTO_CONF) ? 1055 MLX4_EN_RX_COAL_TARGET : 1056 coal->rx_max_coalesced_frames; 1057 priv->rx_usecs = (coal->rx_coalesce_usecs == 1058 MLX4_EN_AUTO_CONF) ? 1059 MLX4_EN_RX_COAL_TIME : 1060 coal->rx_coalesce_usecs; 1061 1062 /* Setting TX coalescing parameters */ 1063 if (coal->tx_coalesce_usecs != priv->tx_usecs || 1064 coal->tx_max_coalesced_frames != priv->tx_frames) { 1065 priv->tx_usecs = coal->tx_coalesce_usecs; 1066 priv->tx_frames = coal->tx_max_coalesced_frames; 1067 } 1068 1069 /* Set adaptive coalescing params */ 1070 priv->pkt_rate_low = coal->pkt_rate_low; 1071 priv->rx_usecs_low = coal->rx_coalesce_usecs_low; 1072 priv->pkt_rate_high = coal->pkt_rate_high; 1073 priv->rx_usecs_high = coal->rx_coalesce_usecs_high; 1074 priv->sample_interval = coal->rate_sample_interval; 1075 priv->adaptive_rx_coal = coal->use_adaptive_rx_coalesce; 1076 priv->tx_work_limit = coal->tx_max_coalesced_frames_irq; 1077 1078 return mlx4_en_moderation_update(priv); 1079 } 1080 1081 static int mlx4_en_set_pauseparam(struct net_device *dev, 1082 struct ethtool_pauseparam *pause) 1083 { 1084 struct mlx4_en_priv *priv = netdev_priv(dev); 1085 struct mlx4_en_dev *mdev = priv->mdev; 1086 u8 tx_pause, tx_ppp, rx_pause, rx_ppp; 1087 int err; 1088 1089 if (pause->autoneg) 1090 return -EINVAL; 1091 1092 tx_pause = !!(pause->tx_pause); 1093 rx_pause = !!(pause->rx_pause); 1094 rx_ppp = (tx_pause || rx_pause) ? 0 : priv->prof->rx_ppp; 1095 tx_ppp = (tx_pause || rx_pause) ? 0 : priv->prof->tx_ppp; 1096 1097 err = mlx4_SET_PORT_general(mdev->dev, priv->port, 1098 priv->rx_skb_size + ETH_FCS_LEN, 1099 tx_pause, tx_ppp, rx_pause, rx_ppp); 1100 if (err) { 1101 en_err(priv, "Failed setting pause params, err = %d\n", err); 1102 return err; 1103 } 1104 1105 mlx4_en_update_pfc_stats_bitmap(mdev->dev, &priv->stats_bitmap, 1106 rx_ppp, rx_pause, tx_ppp, tx_pause); 1107 1108 priv->prof->tx_pause = tx_pause; 1109 priv->prof->rx_pause = rx_pause; 1110 priv->prof->tx_ppp = tx_ppp; 1111 priv->prof->rx_ppp = rx_ppp; 1112 1113 return err; 1114 } 1115 1116 static void mlx4_en_get_pause_stats(struct net_device *dev, 1117 struct ethtool_pause_stats *stats) 1118 { 1119 struct mlx4_en_priv *priv = netdev_priv(dev); 1120 struct bitmap_iterator it; 1121 1122 bitmap_iterator_init(&it, priv->stats_bitmap.bitmap, NUM_ALL_STATS); 1123 1124 spin_lock_bh(&priv->stats_lock); 1125 if (test_bit(FLOW_PRIORITY_STATS_IDX_TX_FRAMES, 1126 priv->stats_bitmap.bitmap)) 1127 stats->tx_pause_frames = priv->tx_flowstats.tx_pause; 1128 if (test_bit(FLOW_PRIORITY_STATS_IDX_RX_FRAMES, 1129 priv->stats_bitmap.bitmap)) 1130 stats->rx_pause_frames = priv->rx_flowstats.rx_pause; 1131 spin_unlock_bh(&priv->stats_lock); 1132 } 1133 1134 static void mlx4_en_get_pauseparam(struct net_device *dev, 1135 struct ethtool_pauseparam *pause) 1136 { 1137 struct mlx4_en_priv *priv = netdev_priv(dev); 1138 1139 pause->tx_pause = priv->prof->tx_pause; 1140 pause->rx_pause = priv->prof->rx_pause; 1141 } 1142 1143 static int mlx4_en_set_ringparam(struct net_device *dev, 1144 struct ethtool_ringparam *param, 1145 struct kernel_ethtool_ringparam *kernel_param, 1146 struct netlink_ext_ack *extack) 1147 { 1148 struct mlx4_en_priv *priv = netdev_priv(dev); 1149 struct mlx4_en_dev *mdev = priv->mdev; 1150 struct mlx4_en_port_profile new_prof; 1151 struct mlx4_en_priv *tmp; 1152 u32 rx_size, tx_size; 1153 int port_up = 0; 1154 int err = 0; 1155 1156 if (param->rx_jumbo_pending || param->rx_mini_pending) 1157 return -EINVAL; 1158 1159 if (param->rx_pending < MLX4_EN_MIN_RX_SIZE) { 1160 en_warn(priv, "%s: rx_pending (%d) < min (%d)\n", 1161 __func__, param->rx_pending, 1162 MLX4_EN_MIN_RX_SIZE); 1163 return -EINVAL; 1164 } 1165 if (param->tx_pending < MLX4_EN_MIN_TX_SIZE) { 1166 en_warn(priv, "%s: tx_pending (%d) < min (%lu)\n", 1167 __func__, param->tx_pending, 1168 MLX4_EN_MIN_TX_SIZE); 1169 return -EINVAL; 1170 } 1171 1172 rx_size = roundup_pow_of_two(param->rx_pending); 1173 tx_size = roundup_pow_of_two(param->tx_pending); 1174 1175 if (rx_size == (priv->port_up ? priv->rx_ring[0]->actual_size : 1176 priv->rx_ring[0]->size) && 1177 tx_size == priv->tx_ring[TX][0]->size) 1178 return 0; 1179 1180 tmp = kzalloc(sizeof(*tmp), GFP_KERNEL); 1181 if (!tmp) 1182 return -ENOMEM; 1183 1184 mutex_lock(&mdev->state_lock); 1185 memcpy(&new_prof, priv->prof, sizeof(struct mlx4_en_port_profile)); 1186 new_prof.tx_ring_size = tx_size; 1187 new_prof.rx_ring_size = rx_size; 1188 err = mlx4_en_try_alloc_resources(priv, tmp, &new_prof, true); 1189 if (err) 1190 goto out; 1191 1192 if (priv->port_up) { 1193 port_up = 1; 1194 mlx4_en_stop_port(dev, 1); 1195 } 1196 1197 mlx4_en_safe_replace_resources(priv, tmp); 1198 1199 if (port_up) { 1200 err = mlx4_en_start_port(dev); 1201 if (err) 1202 en_err(priv, "Failed starting port\n"); 1203 } 1204 1205 err = mlx4_en_moderation_update(priv); 1206 out: 1207 kfree(tmp); 1208 mutex_unlock(&mdev->state_lock); 1209 return err; 1210 } 1211 1212 static void mlx4_en_get_ringparam(struct net_device *dev, 1213 struct ethtool_ringparam *param, 1214 struct kernel_ethtool_ringparam *kernel_param, 1215 struct netlink_ext_ack *extack) 1216 { 1217 struct mlx4_en_priv *priv = netdev_priv(dev); 1218 1219 memset(param, 0, sizeof(*param)); 1220 param->rx_max_pending = MLX4_EN_MAX_RX_SIZE; 1221 param->tx_max_pending = MLX4_EN_MAX_TX_SIZE; 1222 param->rx_pending = priv->port_up ? 1223 priv->rx_ring[0]->actual_size : priv->rx_ring[0]->size; 1224 param->tx_pending = priv->tx_ring[TX][0]->size; 1225 } 1226 1227 static u32 mlx4_en_get_rxfh_indir_size(struct net_device *dev) 1228 { 1229 struct mlx4_en_priv *priv = netdev_priv(dev); 1230 1231 return rounddown_pow_of_two(priv->rx_ring_num); 1232 } 1233 1234 static u32 mlx4_en_get_rxfh_key_size(struct net_device *netdev) 1235 { 1236 return MLX4_EN_RSS_KEY_SIZE; 1237 } 1238 1239 static int mlx4_en_check_rxfh_func(struct net_device *dev, u8 hfunc) 1240 { 1241 struct mlx4_en_priv *priv = netdev_priv(dev); 1242 1243 /* check if requested function is supported by the device */ 1244 if (hfunc == ETH_RSS_HASH_TOP) { 1245 if (!(priv->mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_RSS_TOP)) 1246 return -EINVAL; 1247 if (!(dev->features & NETIF_F_RXHASH)) 1248 en_warn(priv, "Toeplitz hash function should be used in conjunction with RX hashing for optimal performance\n"); 1249 return 0; 1250 } else if (hfunc == ETH_RSS_HASH_XOR) { 1251 if (!(priv->mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_RSS_XOR)) 1252 return -EINVAL; 1253 if (dev->features & NETIF_F_RXHASH) 1254 en_warn(priv, "Enabling both XOR Hash function and RX Hashing can limit RPS functionality\n"); 1255 return 0; 1256 } 1257 1258 return -EINVAL; 1259 } 1260 1261 static int mlx4_en_get_rxfh(struct net_device *dev, u32 *ring_index, u8 *key, 1262 u8 *hfunc) 1263 { 1264 struct mlx4_en_priv *priv = netdev_priv(dev); 1265 u32 n = mlx4_en_get_rxfh_indir_size(dev); 1266 u32 i, rss_rings; 1267 1268 rss_rings = priv->prof->rss_rings ?: n; 1269 rss_rings = rounddown_pow_of_two(rss_rings); 1270 1271 for (i = 0; i < n; i++) { 1272 if (!ring_index) 1273 break; 1274 ring_index[i] = i % rss_rings; 1275 } 1276 if (key) 1277 memcpy(key, priv->rss_key, MLX4_EN_RSS_KEY_SIZE); 1278 if (hfunc) 1279 *hfunc = priv->rss_hash_fn; 1280 return 0; 1281 } 1282 1283 static int mlx4_en_set_rxfh(struct net_device *dev, const u32 *ring_index, 1284 const u8 *key, const u8 hfunc) 1285 { 1286 struct mlx4_en_priv *priv = netdev_priv(dev); 1287 u32 n = mlx4_en_get_rxfh_indir_size(dev); 1288 struct mlx4_en_dev *mdev = priv->mdev; 1289 int port_up = 0; 1290 int err = 0; 1291 int i; 1292 int rss_rings = 0; 1293 1294 /* Calculate RSS table size and make sure flows are spread evenly 1295 * between rings 1296 */ 1297 for (i = 0; i < n; i++) { 1298 if (!ring_index) 1299 break; 1300 if (i > 0 && !ring_index[i] && !rss_rings) 1301 rss_rings = i; 1302 1303 if (ring_index[i] != (i % (rss_rings ?: n))) 1304 return -EINVAL; 1305 } 1306 1307 if (!rss_rings) 1308 rss_rings = n; 1309 1310 /* RSS table size must be an order of 2 */ 1311 if (!is_power_of_2(rss_rings)) 1312 return -EINVAL; 1313 1314 if (hfunc != ETH_RSS_HASH_NO_CHANGE) { 1315 err = mlx4_en_check_rxfh_func(dev, hfunc); 1316 if (err) 1317 return err; 1318 } 1319 1320 mutex_lock(&mdev->state_lock); 1321 if (priv->port_up) { 1322 port_up = 1; 1323 mlx4_en_stop_port(dev, 1); 1324 } 1325 1326 if (ring_index) 1327 priv->prof->rss_rings = rss_rings; 1328 if (key) 1329 memcpy(priv->rss_key, key, MLX4_EN_RSS_KEY_SIZE); 1330 if (hfunc != ETH_RSS_HASH_NO_CHANGE) 1331 priv->rss_hash_fn = hfunc; 1332 1333 if (port_up) { 1334 err = mlx4_en_start_port(dev); 1335 if (err) 1336 en_err(priv, "Failed starting port\n"); 1337 } 1338 1339 mutex_unlock(&mdev->state_lock); 1340 return err; 1341 } 1342 1343 #define all_zeros_or_all_ones(field) \ 1344 ((field) == 0 || (field) == (__force typeof(field))-1) 1345 1346 static int mlx4_en_validate_flow(struct net_device *dev, 1347 struct ethtool_rxnfc *cmd) 1348 { 1349 struct ethtool_usrip4_spec *l3_mask; 1350 struct ethtool_tcpip4_spec *l4_mask; 1351 struct ethhdr *eth_mask; 1352 1353 if (cmd->fs.location >= MAX_NUM_OF_FS_RULES) 1354 return -EINVAL; 1355 1356 if (cmd->fs.flow_type & FLOW_MAC_EXT) { 1357 /* dest mac mask must be ff:ff:ff:ff:ff:ff */ 1358 if (!is_broadcast_ether_addr(cmd->fs.m_ext.h_dest)) 1359 return -EINVAL; 1360 } 1361 1362 switch (cmd->fs.flow_type & ~(FLOW_EXT | FLOW_MAC_EXT)) { 1363 case TCP_V4_FLOW: 1364 case UDP_V4_FLOW: 1365 if (cmd->fs.m_u.tcp_ip4_spec.tos) 1366 return -EINVAL; 1367 l4_mask = &cmd->fs.m_u.tcp_ip4_spec; 1368 /* don't allow mask which isn't all 0 or 1 */ 1369 if (!all_zeros_or_all_ones(l4_mask->ip4src) || 1370 !all_zeros_or_all_ones(l4_mask->ip4dst) || 1371 !all_zeros_or_all_ones(l4_mask->psrc) || 1372 !all_zeros_or_all_ones(l4_mask->pdst)) 1373 return -EINVAL; 1374 break; 1375 case IP_USER_FLOW: 1376 l3_mask = &cmd->fs.m_u.usr_ip4_spec; 1377 if (l3_mask->l4_4_bytes || l3_mask->tos || l3_mask->proto || 1378 cmd->fs.h_u.usr_ip4_spec.ip_ver != ETH_RX_NFC_IP4 || 1379 (!l3_mask->ip4src && !l3_mask->ip4dst) || 1380 !all_zeros_or_all_ones(l3_mask->ip4src) || 1381 !all_zeros_or_all_ones(l3_mask->ip4dst)) 1382 return -EINVAL; 1383 break; 1384 case ETHER_FLOW: 1385 eth_mask = &cmd->fs.m_u.ether_spec; 1386 /* source mac mask must not be set */ 1387 if (!is_zero_ether_addr(eth_mask->h_source)) 1388 return -EINVAL; 1389 1390 /* dest mac mask must be ff:ff:ff:ff:ff:ff */ 1391 if (!is_broadcast_ether_addr(eth_mask->h_dest)) 1392 return -EINVAL; 1393 1394 if (!all_zeros_or_all_ones(eth_mask->h_proto)) 1395 return -EINVAL; 1396 break; 1397 default: 1398 return -EINVAL; 1399 } 1400 1401 if ((cmd->fs.flow_type & FLOW_EXT)) { 1402 if (cmd->fs.m_ext.vlan_etype || 1403 !((cmd->fs.m_ext.vlan_tci & cpu_to_be16(VLAN_VID_MASK)) == 1404 0 || 1405 (cmd->fs.m_ext.vlan_tci & cpu_to_be16(VLAN_VID_MASK)) == 1406 cpu_to_be16(VLAN_VID_MASK))) 1407 return -EINVAL; 1408 1409 if (cmd->fs.m_ext.vlan_tci) { 1410 if (be16_to_cpu(cmd->fs.h_ext.vlan_tci) >= VLAN_N_VID) 1411 return -EINVAL; 1412 1413 } 1414 } 1415 1416 return 0; 1417 } 1418 1419 static int mlx4_en_ethtool_add_mac_rule(struct ethtool_rxnfc *cmd, 1420 struct list_head *rule_list_h, 1421 struct mlx4_spec_list *spec_l2, 1422 unsigned char *mac) 1423 { 1424 __be64 mac_msk = cpu_to_be64(MLX4_MAC_MASK << 16); 1425 1426 spec_l2->id = MLX4_NET_TRANS_RULE_ID_ETH; 1427 memcpy(spec_l2->eth.dst_mac_msk, &mac_msk, ETH_ALEN); 1428 memcpy(spec_l2->eth.dst_mac, mac, ETH_ALEN); 1429 1430 if ((cmd->fs.flow_type & FLOW_EXT) && 1431 (cmd->fs.m_ext.vlan_tci & cpu_to_be16(VLAN_VID_MASK))) { 1432 spec_l2->eth.vlan_id = cmd->fs.h_ext.vlan_tci; 1433 spec_l2->eth.vlan_id_msk = cpu_to_be16(VLAN_VID_MASK); 1434 } 1435 1436 list_add_tail(&spec_l2->list, rule_list_h); 1437 1438 return 0; 1439 } 1440 1441 static int mlx4_en_ethtool_add_mac_rule_by_ipv4(struct mlx4_en_priv *priv, 1442 struct ethtool_rxnfc *cmd, 1443 struct list_head *rule_list_h, 1444 struct mlx4_spec_list *spec_l2, 1445 __be32 ipv4_dst) 1446 { 1447 #ifdef CONFIG_INET 1448 unsigned char mac[ETH_ALEN]; 1449 1450 if (!ipv4_is_multicast(ipv4_dst)) { 1451 if (cmd->fs.flow_type & FLOW_MAC_EXT) 1452 memcpy(&mac, cmd->fs.h_ext.h_dest, ETH_ALEN); 1453 else 1454 memcpy(&mac, priv->dev->dev_addr, ETH_ALEN); 1455 } else { 1456 ip_eth_mc_map(ipv4_dst, mac); 1457 } 1458 1459 return mlx4_en_ethtool_add_mac_rule(cmd, rule_list_h, spec_l2, &mac[0]); 1460 #else 1461 return -EINVAL; 1462 #endif 1463 } 1464 1465 static int add_ip_rule(struct mlx4_en_priv *priv, 1466 struct ethtool_rxnfc *cmd, 1467 struct list_head *list_h) 1468 { 1469 int err; 1470 struct mlx4_spec_list *spec_l2 = NULL; 1471 struct mlx4_spec_list *spec_l3 = NULL; 1472 struct ethtool_usrip4_spec *l3_mask = &cmd->fs.m_u.usr_ip4_spec; 1473 1474 spec_l3 = kzalloc(sizeof(*spec_l3), GFP_KERNEL); 1475 spec_l2 = kzalloc(sizeof(*spec_l2), GFP_KERNEL); 1476 if (!spec_l2 || !spec_l3) { 1477 err = -ENOMEM; 1478 goto free_spec; 1479 } 1480 1481 err = mlx4_en_ethtool_add_mac_rule_by_ipv4(priv, cmd, list_h, spec_l2, 1482 cmd->fs.h_u. 1483 usr_ip4_spec.ip4dst); 1484 if (err) 1485 goto free_spec; 1486 spec_l3->id = MLX4_NET_TRANS_RULE_ID_IPV4; 1487 spec_l3->ipv4.src_ip = cmd->fs.h_u.usr_ip4_spec.ip4src; 1488 if (l3_mask->ip4src) 1489 spec_l3->ipv4.src_ip_msk = EN_ETHTOOL_WORD_MASK; 1490 spec_l3->ipv4.dst_ip = cmd->fs.h_u.usr_ip4_spec.ip4dst; 1491 if (l3_mask->ip4dst) 1492 spec_l3->ipv4.dst_ip_msk = EN_ETHTOOL_WORD_MASK; 1493 list_add_tail(&spec_l3->list, list_h); 1494 1495 return 0; 1496 1497 free_spec: 1498 kfree(spec_l2); 1499 kfree(spec_l3); 1500 return err; 1501 } 1502 1503 static int add_tcp_udp_rule(struct mlx4_en_priv *priv, 1504 struct ethtool_rxnfc *cmd, 1505 struct list_head *list_h, int proto) 1506 { 1507 int err; 1508 struct mlx4_spec_list *spec_l2 = NULL; 1509 struct mlx4_spec_list *spec_l3 = NULL; 1510 struct mlx4_spec_list *spec_l4 = NULL; 1511 struct ethtool_tcpip4_spec *l4_mask = &cmd->fs.m_u.tcp_ip4_spec; 1512 1513 spec_l2 = kzalloc(sizeof(*spec_l2), GFP_KERNEL); 1514 spec_l3 = kzalloc(sizeof(*spec_l3), GFP_KERNEL); 1515 spec_l4 = kzalloc(sizeof(*spec_l4), GFP_KERNEL); 1516 if (!spec_l2 || !spec_l3 || !spec_l4) { 1517 err = -ENOMEM; 1518 goto free_spec; 1519 } 1520 1521 spec_l3->id = MLX4_NET_TRANS_RULE_ID_IPV4; 1522 1523 if (proto == TCP_V4_FLOW) { 1524 err = mlx4_en_ethtool_add_mac_rule_by_ipv4(priv, cmd, list_h, 1525 spec_l2, 1526 cmd->fs.h_u. 1527 tcp_ip4_spec.ip4dst); 1528 if (err) 1529 goto free_spec; 1530 spec_l4->id = MLX4_NET_TRANS_RULE_ID_TCP; 1531 spec_l3->ipv4.src_ip = cmd->fs.h_u.tcp_ip4_spec.ip4src; 1532 spec_l3->ipv4.dst_ip = cmd->fs.h_u.tcp_ip4_spec.ip4dst; 1533 spec_l4->tcp_udp.src_port = cmd->fs.h_u.tcp_ip4_spec.psrc; 1534 spec_l4->tcp_udp.dst_port = cmd->fs.h_u.tcp_ip4_spec.pdst; 1535 } else { 1536 err = mlx4_en_ethtool_add_mac_rule_by_ipv4(priv, cmd, list_h, 1537 spec_l2, 1538 cmd->fs.h_u. 1539 udp_ip4_spec.ip4dst); 1540 if (err) 1541 goto free_spec; 1542 spec_l4->id = MLX4_NET_TRANS_RULE_ID_UDP; 1543 spec_l3->ipv4.src_ip = cmd->fs.h_u.udp_ip4_spec.ip4src; 1544 spec_l3->ipv4.dst_ip = cmd->fs.h_u.udp_ip4_spec.ip4dst; 1545 spec_l4->tcp_udp.src_port = cmd->fs.h_u.udp_ip4_spec.psrc; 1546 spec_l4->tcp_udp.dst_port = cmd->fs.h_u.udp_ip4_spec.pdst; 1547 } 1548 1549 if (l4_mask->ip4src) 1550 spec_l3->ipv4.src_ip_msk = EN_ETHTOOL_WORD_MASK; 1551 if (l4_mask->ip4dst) 1552 spec_l3->ipv4.dst_ip_msk = EN_ETHTOOL_WORD_MASK; 1553 1554 if (l4_mask->psrc) 1555 spec_l4->tcp_udp.src_port_msk = EN_ETHTOOL_SHORT_MASK; 1556 if (l4_mask->pdst) 1557 spec_l4->tcp_udp.dst_port_msk = EN_ETHTOOL_SHORT_MASK; 1558 1559 list_add_tail(&spec_l3->list, list_h); 1560 list_add_tail(&spec_l4->list, list_h); 1561 1562 return 0; 1563 1564 free_spec: 1565 kfree(spec_l2); 1566 kfree(spec_l3); 1567 kfree(spec_l4); 1568 return err; 1569 } 1570 1571 static int mlx4_en_ethtool_to_net_trans_rule(struct net_device *dev, 1572 struct ethtool_rxnfc *cmd, 1573 struct list_head *rule_list_h) 1574 { 1575 int err; 1576 struct ethhdr *eth_spec; 1577 struct mlx4_spec_list *spec_l2; 1578 struct mlx4_en_priv *priv = netdev_priv(dev); 1579 1580 err = mlx4_en_validate_flow(dev, cmd); 1581 if (err) 1582 return err; 1583 1584 switch (cmd->fs.flow_type & ~(FLOW_EXT | FLOW_MAC_EXT)) { 1585 case ETHER_FLOW: 1586 spec_l2 = kzalloc(sizeof(*spec_l2), GFP_KERNEL); 1587 if (!spec_l2) 1588 return -ENOMEM; 1589 1590 eth_spec = &cmd->fs.h_u.ether_spec; 1591 mlx4_en_ethtool_add_mac_rule(cmd, rule_list_h, spec_l2, 1592 ð_spec->h_dest[0]); 1593 spec_l2->eth.ether_type = eth_spec->h_proto; 1594 if (eth_spec->h_proto) 1595 spec_l2->eth.ether_type_enable = 1; 1596 break; 1597 case IP_USER_FLOW: 1598 err = add_ip_rule(priv, cmd, rule_list_h); 1599 break; 1600 case TCP_V4_FLOW: 1601 err = add_tcp_udp_rule(priv, cmd, rule_list_h, TCP_V4_FLOW); 1602 break; 1603 case UDP_V4_FLOW: 1604 err = add_tcp_udp_rule(priv, cmd, rule_list_h, UDP_V4_FLOW); 1605 break; 1606 } 1607 1608 return err; 1609 } 1610 1611 static int mlx4_en_flow_replace(struct net_device *dev, 1612 struct ethtool_rxnfc *cmd) 1613 { 1614 int err; 1615 struct mlx4_en_priv *priv = netdev_priv(dev); 1616 struct ethtool_flow_id *loc_rule; 1617 struct mlx4_spec_list *spec, *tmp_spec; 1618 u32 qpn; 1619 u64 reg_id; 1620 1621 struct mlx4_net_trans_rule rule = { 1622 .queue_mode = MLX4_NET_TRANS_Q_FIFO, 1623 .exclusive = 0, 1624 .allow_loopback = 1, 1625 .promisc_mode = MLX4_FS_REGULAR, 1626 }; 1627 1628 rule.port = priv->port; 1629 rule.priority = MLX4_DOMAIN_ETHTOOL | cmd->fs.location; 1630 INIT_LIST_HEAD(&rule.list); 1631 1632 /* Allow direct QP attaches if the EN_ETHTOOL_QP_ATTACH flag is set */ 1633 if (cmd->fs.ring_cookie == RX_CLS_FLOW_DISC) 1634 qpn = priv->drop_qp.qpn; 1635 else if (cmd->fs.ring_cookie & EN_ETHTOOL_QP_ATTACH) { 1636 qpn = cmd->fs.ring_cookie & (EN_ETHTOOL_QP_ATTACH - 1); 1637 } else { 1638 if (cmd->fs.ring_cookie >= priv->rx_ring_num) { 1639 en_warn(priv, "rxnfc: RX ring (%llu) doesn't exist\n", 1640 cmd->fs.ring_cookie); 1641 return -EINVAL; 1642 } 1643 qpn = priv->rss_map.qps[cmd->fs.ring_cookie].qpn; 1644 if (!qpn) { 1645 en_warn(priv, "rxnfc: RX ring (%llu) is inactive\n", 1646 cmd->fs.ring_cookie); 1647 return -EINVAL; 1648 } 1649 } 1650 rule.qpn = qpn; 1651 err = mlx4_en_ethtool_to_net_trans_rule(dev, cmd, &rule.list); 1652 if (err) 1653 goto out_free_list; 1654 1655 loc_rule = &priv->ethtool_rules[cmd->fs.location]; 1656 if (loc_rule->id) { 1657 err = mlx4_flow_detach(priv->mdev->dev, loc_rule->id); 1658 if (err) { 1659 en_err(priv, "Fail to detach network rule at location %d. registration id = %llx\n", 1660 cmd->fs.location, loc_rule->id); 1661 goto out_free_list; 1662 } 1663 loc_rule->id = 0; 1664 memset(&loc_rule->flow_spec, 0, 1665 sizeof(struct ethtool_rx_flow_spec)); 1666 list_del(&loc_rule->list); 1667 } 1668 err = mlx4_flow_attach(priv->mdev->dev, &rule, ®_id); 1669 if (err) { 1670 en_err(priv, "Fail to attach network rule at location %d\n", 1671 cmd->fs.location); 1672 goto out_free_list; 1673 } 1674 loc_rule->id = reg_id; 1675 memcpy(&loc_rule->flow_spec, &cmd->fs, 1676 sizeof(struct ethtool_rx_flow_spec)); 1677 list_add_tail(&loc_rule->list, &priv->ethtool_list); 1678 1679 out_free_list: 1680 list_for_each_entry_safe(spec, tmp_spec, &rule.list, list) { 1681 list_del(&spec->list); 1682 kfree(spec); 1683 } 1684 return err; 1685 } 1686 1687 static int mlx4_en_flow_detach(struct net_device *dev, 1688 struct ethtool_rxnfc *cmd) 1689 { 1690 int err = 0; 1691 struct ethtool_flow_id *rule; 1692 struct mlx4_en_priv *priv = netdev_priv(dev); 1693 1694 if (cmd->fs.location >= MAX_NUM_OF_FS_RULES) 1695 return -EINVAL; 1696 1697 rule = &priv->ethtool_rules[cmd->fs.location]; 1698 if (!rule->id) { 1699 err = -ENOENT; 1700 goto out; 1701 } 1702 1703 err = mlx4_flow_detach(priv->mdev->dev, rule->id); 1704 if (err) { 1705 en_err(priv, "Fail to detach network rule at location %d. registration id = 0x%llx\n", 1706 cmd->fs.location, rule->id); 1707 goto out; 1708 } 1709 rule->id = 0; 1710 memset(&rule->flow_spec, 0, sizeof(struct ethtool_rx_flow_spec)); 1711 list_del(&rule->list); 1712 out: 1713 return err; 1714 1715 } 1716 1717 static int mlx4_en_get_flow(struct net_device *dev, struct ethtool_rxnfc *cmd, 1718 int loc) 1719 { 1720 int err = 0; 1721 struct ethtool_flow_id *rule; 1722 struct mlx4_en_priv *priv = netdev_priv(dev); 1723 1724 if (loc < 0 || loc >= MAX_NUM_OF_FS_RULES) 1725 return -EINVAL; 1726 1727 rule = &priv->ethtool_rules[loc]; 1728 if (rule->id) 1729 memcpy(&cmd->fs, &rule->flow_spec, 1730 sizeof(struct ethtool_rx_flow_spec)); 1731 else 1732 err = -ENOENT; 1733 1734 return err; 1735 } 1736 1737 static int mlx4_en_get_num_flows(struct mlx4_en_priv *priv) 1738 { 1739 1740 int i, res = 0; 1741 for (i = 0; i < MAX_NUM_OF_FS_RULES; i++) { 1742 if (priv->ethtool_rules[i].id) 1743 res++; 1744 } 1745 return res; 1746 1747 } 1748 1749 static int mlx4_en_get_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd, 1750 u32 *rule_locs) 1751 { 1752 struct mlx4_en_priv *priv = netdev_priv(dev); 1753 struct mlx4_en_dev *mdev = priv->mdev; 1754 int err = 0; 1755 int i = 0, priority = 0; 1756 1757 if ((cmd->cmd == ETHTOOL_GRXCLSRLCNT || 1758 cmd->cmd == ETHTOOL_GRXCLSRULE || 1759 cmd->cmd == ETHTOOL_GRXCLSRLALL) && 1760 (mdev->dev->caps.steering_mode != 1761 MLX4_STEERING_MODE_DEVICE_MANAGED || !priv->port_up)) 1762 return -EINVAL; 1763 1764 switch (cmd->cmd) { 1765 case ETHTOOL_GRXRINGS: 1766 cmd->data = priv->rx_ring_num; 1767 break; 1768 case ETHTOOL_GRXCLSRLCNT: 1769 cmd->rule_cnt = mlx4_en_get_num_flows(priv); 1770 break; 1771 case ETHTOOL_GRXCLSRULE: 1772 err = mlx4_en_get_flow(dev, cmd, cmd->fs.location); 1773 break; 1774 case ETHTOOL_GRXCLSRLALL: 1775 cmd->data = MAX_NUM_OF_FS_RULES; 1776 while ((!err || err == -ENOENT) && priority < cmd->rule_cnt) { 1777 err = mlx4_en_get_flow(dev, cmd, i); 1778 if (!err) 1779 rule_locs[priority++] = i; 1780 i++; 1781 } 1782 err = 0; 1783 break; 1784 default: 1785 err = -EOPNOTSUPP; 1786 break; 1787 } 1788 1789 return err; 1790 } 1791 1792 static int mlx4_en_set_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd) 1793 { 1794 int err = 0; 1795 struct mlx4_en_priv *priv = netdev_priv(dev); 1796 struct mlx4_en_dev *mdev = priv->mdev; 1797 1798 if (mdev->dev->caps.steering_mode != 1799 MLX4_STEERING_MODE_DEVICE_MANAGED || !priv->port_up) 1800 return -EINVAL; 1801 1802 switch (cmd->cmd) { 1803 case ETHTOOL_SRXCLSRLINS: 1804 err = mlx4_en_flow_replace(dev, cmd); 1805 break; 1806 case ETHTOOL_SRXCLSRLDEL: 1807 err = mlx4_en_flow_detach(dev, cmd); 1808 break; 1809 default: 1810 en_warn(priv, "Unsupported ethtool command. (%d)\n", cmd->cmd); 1811 return -EINVAL; 1812 } 1813 1814 return err; 1815 } 1816 1817 static int mlx4_en_get_max_num_rx_rings(struct net_device *dev) 1818 { 1819 return min_t(int, num_online_cpus(), MAX_RX_RINGS); 1820 } 1821 1822 static void mlx4_en_get_channels(struct net_device *dev, 1823 struct ethtool_channels *channel) 1824 { 1825 struct mlx4_en_priv *priv = netdev_priv(dev); 1826 1827 channel->max_rx = mlx4_en_get_max_num_rx_rings(dev); 1828 channel->max_tx = priv->mdev->profile.max_num_tx_rings_p_up; 1829 1830 channel->rx_count = priv->rx_ring_num; 1831 channel->tx_count = priv->tx_ring_num[TX] / 1832 priv->prof->num_up; 1833 } 1834 1835 static int mlx4_en_set_channels(struct net_device *dev, 1836 struct ethtool_channels *channel) 1837 { 1838 struct mlx4_en_priv *priv = netdev_priv(dev); 1839 struct mlx4_en_dev *mdev = priv->mdev; 1840 struct mlx4_en_port_profile new_prof; 1841 struct mlx4_en_priv *tmp; 1842 int total_tx_count; 1843 int port_up = 0; 1844 int xdp_count; 1845 int err = 0; 1846 u8 up; 1847 1848 if (!channel->tx_count || !channel->rx_count) 1849 return -EINVAL; 1850 1851 tmp = kzalloc(sizeof(*tmp), GFP_KERNEL); 1852 if (!tmp) 1853 return -ENOMEM; 1854 1855 mutex_lock(&mdev->state_lock); 1856 xdp_count = priv->tx_ring_num[TX_XDP] ? channel->rx_count : 0; 1857 total_tx_count = channel->tx_count * priv->prof->num_up + xdp_count; 1858 if (total_tx_count > MAX_TX_RINGS) { 1859 err = -EINVAL; 1860 en_err(priv, 1861 "Total number of TX and XDP rings (%d) exceeds the maximum supported (%d)\n", 1862 total_tx_count, MAX_TX_RINGS); 1863 goto out; 1864 } 1865 1866 memcpy(&new_prof, priv->prof, sizeof(struct mlx4_en_port_profile)); 1867 new_prof.num_tx_rings_p_up = channel->tx_count; 1868 new_prof.tx_ring_num[TX] = channel->tx_count * priv->prof->num_up; 1869 new_prof.tx_ring_num[TX_XDP] = xdp_count; 1870 new_prof.rx_ring_num = channel->rx_count; 1871 1872 err = mlx4_en_try_alloc_resources(priv, tmp, &new_prof, true); 1873 if (err) 1874 goto out; 1875 1876 if (priv->port_up) { 1877 port_up = 1; 1878 mlx4_en_stop_port(dev, 1); 1879 } 1880 1881 mlx4_en_safe_replace_resources(priv, tmp); 1882 1883 netif_set_real_num_rx_queues(dev, priv->rx_ring_num); 1884 1885 up = (priv->prof->num_up == MLX4_EN_NUM_UP_LOW) ? 1886 0 : priv->prof->num_up; 1887 mlx4_en_setup_tc(dev, up); 1888 1889 en_warn(priv, "Using %d TX rings\n", priv->tx_ring_num[TX]); 1890 en_warn(priv, "Using %d RX rings\n", priv->rx_ring_num); 1891 1892 if (port_up) { 1893 err = mlx4_en_start_port(dev); 1894 if (err) 1895 en_err(priv, "Failed starting port\n"); 1896 } 1897 1898 err = mlx4_en_moderation_update(priv); 1899 out: 1900 mutex_unlock(&mdev->state_lock); 1901 kfree(tmp); 1902 return err; 1903 } 1904 1905 static int mlx4_en_get_ts_info(struct net_device *dev, 1906 struct ethtool_ts_info *info) 1907 { 1908 struct mlx4_en_priv *priv = netdev_priv(dev); 1909 struct mlx4_en_dev *mdev = priv->mdev; 1910 int ret; 1911 1912 ret = ethtool_op_get_ts_info(dev, info); 1913 if (ret) 1914 return ret; 1915 1916 if (mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_TS) { 1917 info->so_timestamping |= 1918 SOF_TIMESTAMPING_TX_HARDWARE | 1919 SOF_TIMESTAMPING_RX_HARDWARE | 1920 SOF_TIMESTAMPING_RAW_HARDWARE; 1921 1922 info->tx_types = 1923 (1 << HWTSTAMP_TX_OFF) | 1924 (1 << HWTSTAMP_TX_ON); 1925 1926 info->rx_filters = 1927 (1 << HWTSTAMP_FILTER_NONE) | 1928 (1 << HWTSTAMP_FILTER_ALL); 1929 1930 if (mdev->ptp_clock) 1931 info->phc_index = ptp_clock_index(mdev->ptp_clock); 1932 } 1933 1934 return ret; 1935 } 1936 1937 static int mlx4_en_set_priv_flags(struct net_device *dev, u32 flags) 1938 { 1939 struct mlx4_en_priv *priv = netdev_priv(dev); 1940 struct mlx4_en_dev *mdev = priv->mdev; 1941 bool bf_enabled_new = !!(flags & MLX4_EN_PRIV_FLAGS_BLUEFLAME); 1942 bool bf_enabled_old = !!(priv->pflags & MLX4_EN_PRIV_FLAGS_BLUEFLAME); 1943 bool phv_enabled_new = !!(flags & MLX4_EN_PRIV_FLAGS_PHV); 1944 bool phv_enabled_old = !!(priv->pflags & MLX4_EN_PRIV_FLAGS_PHV); 1945 int i; 1946 int ret = 0; 1947 1948 if (bf_enabled_new != bf_enabled_old) { 1949 int t; 1950 1951 if (bf_enabled_new) { 1952 bool bf_supported = true; 1953 1954 for (t = 0; t < MLX4_EN_NUM_TX_TYPES; t++) 1955 for (i = 0; i < priv->tx_ring_num[t]; i++) 1956 bf_supported &= 1957 priv->tx_ring[t][i]->bf_alloced; 1958 1959 if (!bf_supported) { 1960 en_err(priv, "BlueFlame is not supported\n"); 1961 return -EINVAL; 1962 } 1963 1964 priv->pflags |= MLX4_EN_PRIV_FLAGS_BLUEFLAME; 1965 } else { 1966 priv->pflags &= ~MLX4_EN_PRIV_FLAGS_BLUEFLAME; 1967 } 1968 1969 for (t = 0; t < MLX4_EN_NUM_TX_TYPES; t++) 1970 for (i = 0; i < priv->tx_ring_num[t]; i++) 1971 priv->tx_ring[t][i]->bf_enabled = 1972 bf_enabled_new; 1973 1974 en_info(priv, "BlueFlame %s\n", 1975 bf_enabled_new ? "Enabled" : "Disabled"); 1976 } 1977 1978 if (phv_enabled_new != phv_enabled_old) { 1979 ret = set_phv_bit(mdev->dev, priv->port, (int)phv_enabled_new); 1980 if (ret) 1981 return ret; 1982 else if (phv_enabled_new) 1983 priv->pflags |= MLX4_EN_PRIV_FLAGS_PHV; 1984 else 1985 priv->pflags &= ~MLX4_EN_PRIV_FLAGS_PHV; 1986 en_info(priv, "PHV bit %s\n", 1987 phv_enabled_new ? "Enabled" : "Disabled"); 1988 } 1989 return 0; 1990 } 1991 1992 static u32 mlx4_en_get_priv_flags(struct net_device *dev) 1993 { 1994 struct mlx4_en_priv *priv = netdev_priv(dev); 1995 1996 return priv->pflags; 1997 } 1998 1999 static int mlx4_en_get_tunable(struct net_device *dev, 2000 const struct ethtool_tunable *tuna, 2001 void *data) 2002 { 2003 const struct mlx4_en_priv *priv = netdev_priv(dev); 2004 int ret = 0; 2005 2006 switch (tuna->id) { 2007 case ETHTOOL_TX_COPYBREAK: 2008 *(u32 *)data = priv->prof->inline_thold; 2009 break; 2010 default: 2011 ret = -EINVAL; 2012 break; 2013 } 2014 2015 return ret; 2016 } 2017 2018 static int mlx4_en_set_tunable(struct net_device *dev, 2019 const struct ethtool_tunable *tuna, 2020 const void *data) 2021 { 2022 struct mlx4_en_priv *priv = netdev_priv(dev); 2023 int val, ret = 0; 2024 2025 switch (tuna->id) { 2026 case ETHTOOL_TX_COPYBREAK: 2027 val = *(u32 *)data; 2028 if (val < MIN_PKT_LEN || val > MAX_INLINE) 2029 ret = -EINVAL; 2030 else 2031 priv->prof->inline_thold = val; 2032 break; 2033 default: 2034 ret = -EINVAL; 2035 break; 2036 } 2037 2038 return ret; 2039 } 2040 2041 static int mlx4_en_get_module_info(struct net_device *dev, 2042 struct ethtool_modinfo *modinfo) 2043 { 2044 struct mlx4_en_priv *priv = netdev_priv(dev); 2045 struct mlx4_en_dev *mdev = priv->mdev; 2046 int ret; 2047 u8 data[4]; 2048 2049 /* Read first 2 bytes to get Module & REV ID */ 2050 ret = mlx4_get_module_info(mdev->dev, priv->port, 2051 0/*offset*/, 2/*size*/, data); 2052 if (ret < 2) 2053 return -EIO; 2054 2055 switch (data[0] /* identifier */) { 2056 case MLX4_MODULE_ID_QSFP: 2057 modinfo->type = ETH_MODULE_SFF_8436; 2058 modinfo->eeprom_len = ETH_MODULE_SFF_8436_LEN; 2059 break; 2060 case MLX4_MODULE_ID_QSFP_PLUS: 2061 if (data[1] >= 0x3) { /* revision id */ 2062 modinfo->type = ETH_MODULE_SFF_8636; 2063 modinfo->eeprom_len = ETH_MODULE_SFF_8636_LEN; 2064 } else { 2065 modinfo->type = ETH_MODULE_SFF_8436; 2066 modinfo->eeprom_len = ETH_MODULE_SFF_8436_LEN; 2067 } 2068 break; 2069 case MLX4_MODULE_ID_QSFP28: 2070 modinfo->type = ETH_MODULE_SFF_8636; 2071 modinfo->eeprom_len = ETH_MODULE_SFF_8636_LEN; 2072 break; 2073 case MLX4_MODULE_ID_SFP: 2074 modinfo->type = ETH_MODULE_SFF_8472; 2075 modinfo->eeprom_len = ETH_MODULE_SFF_8472_LEN; 2076 break; 2077 default: 2078 return -EINVAL; 2079 } 2080 2081 return 0; 2082 } 2083 2084 static int mlx4_en_get_module_eeprom(struct net_device *dev, 2085 struct ethtool_eeprom *ee, 2086 u8 *data) 2087 { 2088 struct mlx4_en_priv *priv = netdev_priv(dev); 2089 struct mlx4_en_dev *mdev = priv->mdev; 2090 int offset = ee->offset; 2091 int i = 0, ret; 2092 2093 if (ee->len == 0) 2094 return -EINVAL; 2095 2096 memset(data, 0, ee->len); 2097 2098 while (i < ee->len) { 2099 en_dbg(DRV, priv, 2100 "mlx4_get_module_info i(%d) offset(%d) len(%d)\n", 2101 i, offset, ee->len - i); 2102 2103 ret = mlx4_get_module_info(mdev->dev, priv->port, 2104 offset, ee->len - i, data + i); 2105 2106 if (!ret) /* Done reading */ 2107 return 0; 2108 2109 if (ret < 0) { 2110 en_err(priv, 2111 "mlx4_get_module_info i(%d) offset(%d) bytes_to_read(%d) - FAILED (0x%x)\n", 2112 i, offset, ee->len - i, ret); 2113 return ret; 2114 } 2115 2116 i += ret; 2117 offset += ret; 2118 } 2119 return 0; 2120 } 2121 2122 static int mlx4_en_set_phys_id(struct net_device *dev, 2123 enum ethtool_phys_id_state state) 2124 { 2125 int err; 2126 u16 beacon_duration; 2127 struct mlx4_en_priv *priv = netdev_priv(dev); 2128 struct mlx4_en_dev *mdev = priv->mdev; 2129 2130 if (!(mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_PORT_BEACON)) 2131 return -EOPNOTSUPP; 2132 2133 switch (state) { 2134 case ETHTOOL_ID_ACTIVE: 2135 beacon_duration = PORT_BEACON_MAX_LIMIT; 2136 break; 2137 case ETHTOOL_ID_INACTIVE: 2138 beacon_duration = 0; 2139 break; 2140 default: 2141 return -EOPNOTSUPP; 2142 } 2143 2144 err = mlx4_SET_PORT_BEACON(mdev->dev, priv->port, beacon_duration); 2145 return err; 2146 } 2147 2148 const struct ethtool_ops mlx4_en_ethtool_ops = { 2149 .supported_coalesce_params = ETHTOOL_COALESCE_USECS | 2150 ETHTOOL_COALESCE_MAX_FRAMES | 2151 ETHTOOL_COALESCE_TX_MAX_FRAMES_IRQ | 2152 ETHTOOL_COALESCE_PKT_RATE_RX_USECS, 2153 .get_drvinfo = mlx4_en_get_drvinfo, 2154 .get_link_ksettings = mlx4_en_get_link_ksettings, 2155 .set_link_ksettings = mlx4_en_set_link_ksettings, 2156 .get_link = ethtool_op_get_link, 2157 .get_strings = mlx4_en_get_strings, 2158 .get_sset_count = mlx4_en_get_sset_count, 2159 .get_ethtool_stats = mlx4_en_get_ethtool_stats, 2160 .self_test = mlx4_en_self_test, 2161 .set_phys_id = mlx4_en_set_phys_id, 2162 .get_wol = mlx4_en_get_wol, 2163 .set_wol = mlx4_en_set_wol, 2164 .get_msglevel = mlx4_en_get_msglevel, 2165 .set_msglevel = mlx4_en_set_msglevel, 2166 .get_coalesce = mlx4_en_get_coalesce, 2167 .set_coalesce = mlx4_en_set_coalesce, 2168 .get_pause_stats = mlx4_en_get_pause_stats, 2169 .get_pauseparam = mlx4_en_get_pauseparam, 2170 .set_pauseparam = mlx4_en_set_pauseparam, 2171 .get_ringparam = mlx4_en_get_ringparam, 2172 .set_ringparam = mlx4_en_set_ringparam, 2173 .get_rxnfc = mlx4_en_get_rxnfc, 2174 .set_rxnfc = mlx4_en_set_rxnfc, 2175 .get_rxfh_indir_size = mlx4_en_get_rxfh_indir_size, 2176 .get_rxfh_key_size = mlx4_en_get_rxfh_key_size, 2177 .get_rxfh = mlx4_en_get_rxfh, 2178 .set_rxfh = mlx4_en_set_rxfh, 2179 .get_channels = mlx4_en_get_channels, 2180 .set_channels = mlx4_en_set_channels, 2181 .get_ts_info = mlx4_en_get_ts_info, 2182 .set_priv_flags = mlx4_en_set_priv_flags, 2183 .get_priv_flags = mlx4_en_get_priv_flags, 2184 .get_tunable = mlx4_en_get_tunable, 2185 .set_tunable = mlx4_en_set_tunable, 2186 .get_module_info = mlx4_en_get_module_info, 2187 .get_module_eeprom = mlx4_en_get_module_eeprom 2188 }; 2189 2190 2191 2192 2193 2194