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 43 #include "mlx4_en.h" 44 #include "en_port.h" 45 46 #define EN_ETHTOOL_QP_ATTACH (1ull << 63) 47 #define EN_ETHTOOL_SHORT_MASK cpu_to_be16(0xffff) 48 #define EN_ETHTOOL_WORD_MASK cpu_to_be32(0xffffffff) 49 50 static int mlx4_en_moderation_update(struct mlx4_en_priv *priv) 51 { 52 int i, t; 53 int err = 0; 54 55 for (t = 0 ; t < MLX4_EN_NUM_TX_TYPES; t++) { 56 for (i = 0; i < priv->tx_ring_num[t]; i++) { 57 priv->tx_cq[t][i]->moder_cnt = priv->tx_frames; 58 priv->tx_cq[t][i]->moder_time = priv->tx_usecs; 59 if (priv->port_up) { 60 err = mlx4_en_set_cq_moder(priv, 61 priv->tx_cq[t][i]); 62 if (err) 63 return err; 64 } 65 } 66 } 67 68 if (priv->adaptive_rx_coal) 69 return 0; 70 71 for (i = 0; i < priv->rx_ring_num; i++) { 72 priv->rx_cq[i]->moder_cnt = priv->rx_frames; 73 priv->rx_cq[i]->moder_time = priv->rx_usecs; 74 priv->last_moder_time[i] = MLX4_EN_AUTO_CONF; 75 if (priv->port_up) { 76 err = mlx4_en_set_cq_moder(priv, priv->rx_cq[i]); 77 if (err) 78 return err; 79 } 80 } 81 82 return err; 83 } 84 85 static void 86 mlx4_en_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *drvinfo) 87 { 88 struct mlx4_en_priv *priv = netdev_priv(dev); 89 struct mlx4_en_dev *mdev = priv->mdev; 90 91 strlcpy(drvinfo->driver, DRV_NAME, sizeof(drvinfo->driver)); 92 strlcpy(drvinfo->version, DRV_VERSION, 93 sizeof(drvinfo->version)); 94 snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version), 95 "%d.%d.%d", 96 (u16) (mdev->dev->caps.fw_ver >> 32), 97 (u16) ((mdev->dev->caps.fw_ver >> 16) & 0xffff), 98 (u16) (mdev->dev->caps.fw_ver & 0xffff)); 99 strlcpy(drvinfo->bus_info, pci_name(mdev->dev->persist->pdev), 100 sizeof(drvinfo->bus_info)); 101 } 102 103 static const char mlx4_en_priv_flags[][ETH_GSTRING_LEN] = { 104 "blueflame", 105 "phv-bit" 106 }; 107 108 static const char main_strings[][ETH_GSTRING_LEN] = { 109 /* main statistics */ 110 "rx_packets", "tx_packets", "rx_bytes", "tx_bytes", "rx_errors", 111 "tx_errors", "rx_dropped", "tx_dropped", "multicast", "collisions", 112 "rx_length_errors", "rx_over_errors", "rx_crc_errors", 113 "rx_frame_errors", "rx_fifo_errors", "rx_missed_errors", 114 "tx_aborted_errors", "tx_carrier_errors", "tx_fifo_errors", 115 "tx_heartbeat_errors", "tx_window_errors", 116 117 /* port statistics */ 118 "tso_packets", 119 "xmit_more", 120 "queue_stopped", "wake_queue", "tx_timeout", "rx_alloc_pages", 121 "rx_csum_good", "rx_csum_none", "rx_csum_complete", "tx_chksum_offload", 122 123 /* pf statistics */ 124 "pf_rx_packets", 125 "pf_rx_bytes", 126 "pf_tx_packets", 127 "pf_tx_bytes", 128 129 /* priority flow control statistics rx */ 130 "rx_pause_prio_0", "rx_pause_duration_prio_0", 131 "rx_pause_transition_prio_0", 132 "rx_pause_prio_1", "rx_pause_duration_prio_1", 133 "rx_pause_transition_prio_1", 134 "rx_pause_prio_2", "rx_pause_duration_prio_2", 135 "rx_pause_transition_prio_2", 136 "rx_pause_prio_3", "rx_pause_duration_prio_3", 137 "rx_pause_transition_prio_3", 138 "rx_pause_prio_4", "rx_pause_duration_prio_4", 139 "rx_pause_transition_prio_4", 140 "rx_pause_prio_5", "rx_pause_duration_prio_5", 141 "rx_pause_transition_prio_5", 142 "rx_pause_prio_6", "rx_pause_duration_prio_6", 143 "rx_pause_transition_prio_6", 144 "rx_pause_prio_7", "rx_pause_duration_prio_7", 145 "rx_pause_transition_prio_7", 146 147 /* flow control statistics rx */ 148 "rx_pause", "rx_pause_duration", "rx_pause_transition", 149 150 /* priority flow control statistics tx */ 151 "tx_pause_prio_0", "tx_pause_duration_prio_0", 152 "tx_pause_transition_prio_0", 153 "tx_pause_prio_1", "tx_pause_duration_prio_1", 154 "tx_pause_transition_prio_1", 155 "tx_pause_prio_2", "tx_pause_duration_prio_2", 156 "tx_pause_transition_prio_2", 157 "tx_pause_prio_3", "tx_pause_duration_prio_3", 158 "tx_pause_transition_prio_3", 159 "tx_pause_prio_4", "tx_pause_duration_prio_4", 160 "tx_pause_transition_prio_4", 161 "tx_pause_prio_5", "tx_pause_duration_prio_5", 162 "tx_pause_transition_prio_5", 163 "tx_pause_prio_6", "tx_pause_duration_prio_6", 164 "tx_pause_transition_prio_6", 165 "tx_pause_prio_7", "tx_pause_duration_prio_7", 166 "tx_pause_transition_prio_7", 167 168 /* flow control statistics tx */ 169 "tx_pause", "tx_pause_duration", "tx_pause_transition", 170 171 /* packet statistics */ 172 "rx_multicast_packets", 173 "rx_broadcast_packets", 174 "rx_jabbers", 175 "rx_in_range_length_error", 176 "rx_out_range_length_error", 177 "tx_multicast_packets", 178 "tx_broadcast_packets", 179 "rx_prio_0_packets", "rx_prio_0_bytes", 180 "rx_prio_1_packets", "rx_prio_1_bytes", 181 "rx_prio_2_packets", "rx_prio_2_bytes", 182 "rx_prio_3_packets", "rx_prio_3_bytes", 183 "rx_prio_4_packets", "rx_prio_4_bytes", 184 "rx_prio_5_packets", "rx_prio_5_bytes", 185 "rx_prio_6_packets", "rx_prio_6_bytes", 186 "rx_prio_7_packets", "rx_prio_7_bytes", 187 "rx_novlan_packets", "rx_novlan_bytes", 188 "tx_prio_0_packets", "tx_prio_0_bytes", 189 "tx_prio_1_packets", "tx_prio_1_bytes", 190 "tx_prio_2_packets", "tx_prio_2_bytes", 191 "tx_prio_3_packets", "tx_prio_3_bytes", 192 "tx_prio_4_packets", "tx_prio_4_bytes", 193 "tx_prio_5_packets", "tx_prio_5_bytes", 194 "tx_prio_6_packets", "tx_prio_6_bytes", 195 "tx_prio_7_packets", "tx_prio_7_bytes", 196 "tx_novlan_packets", "tx_novlan_bytes", 197 198 /* xdp statistics */ 199 "rx_xdp_drop", 200 "rx_xdp_tx", 201 "rx_xdp_tx_full", 202 203 /* phy statistics */ 204 "rx_packets_phy", "rx_bytes_phy", 205 "tx_packets_phy", "tx_bytes_phy", 206 }; 207 208 static const char mlx4_en_test_names[][ETH_GSTRING_LEN]= { 209 "Interrupt Test", 210 "Link Test", 211 "Speed Test", 212 "Register Test", 213 "Loopback Test", 214 }; 215 216 static u32 mlx4_en_get_msglevel(struct net_device *dev) 217 { 218 return ((struct mlx4_en_priv *) netdev_priv(dev))->msg_enable; 219 } 220 221 static void mlx4_en_set_msglevel(struct net_device *dev, u32 val) 222 { 223 ((struct mlx4_en_priv *) netdev_priv(dev))->msg_enable = val; 224 } 225 226 static void mlx4_en_get_wol(struct net_device *netdev, 227 struct ethtool_wolinfo *wol) 228 { 229 struct mlx4_en_priv *priv = netdev_priv(netdev); 230 struct mlx4_caps *caps = &priv->mdev->dev->caps; 231 int err = 0; 232 u64 config = 0; 233 u64 mask; 234 235 if ((priv->port < 1) || (priv->port > 2)) { 236 en_err(priv, "Failed to get WoL information\n"); 237 return; 238 } 239 240 mask = (priv->port == 1) ? MLX4_DEV_CAP_FLAG_WOL_PORT1 : 241 MLX4_DEV_CAP_FLAG_WOL_PORT2; 242 243 if (!(caps->flags & mask)) { 244 wol->supported = 0; 245 wol->wolopts = 0; 246 return; 247 } 248 249 if (caps->wol_port[priv->port]) 250 wol->supported = WAKE_MAGIC; 251 else 252 wol->supported = 0; 253 254 err = mlx4_wol_read(priv->mdev->dev, &config, priv->port); 255 if (err) { 256 en_err(priv, "Failed to get WoL information\n"); 257 return; 258 } 259 260 if ((config & MLX4_EN_WOL_ENABLED) && (config & MLX4_EN_WOL_MAGIC)) 261 wol->wolopts = WAKE_MAGIC; 262 else 263 wol->wolopts = 0; 264 } 265 266 static int mlx4_en_set_wol(struct net_device *netdev, 267 struct ethtool_wolinfo *wol) 268 { 269 struct mlx4_en_priv *priv = netdev_priv(netdev); 270 u64 config = 0; 271 int err = 0; 272 u64 mask; 273 274 if ((priv->port < 1) || (priv->port > 2)) 275 return -EOPNOTSUPP; 276 277 mask = (priv->port == 1) ? MLX4_DEV_CAP_FLAG_WOL_PORT1 : 278 MLX4_DEV_CAP_FLAG_WOL_PORT2; 279 280 if (!(priv->mdev->dev->caps.flags & mask)) 281 return -EOPNOTSUPP; 282 283 if (wol->supported & ~WAKE_MAGIC) 284 return -EINVAL; 285 286 err = mlx4_wol_read(priv->mdev->dev, &config, priv->port); 287 if (err) { 288 en_err(priv, "Failed to get WoL info, unable to modify\n"); 289 return err; 290 } 291 292 if (wol->wolopts & WAKE_MAGIC) { 293 config |= MLX4_EN_WOL_DO_MODIFY | MLX4_EN_WOL_ENABLED | 294 MLX4_EN_WOL_MAGIC; 295 } else { 296 config &= ~(MLX4_EN_WOL_ENABLED | MLX4_EN_WOL_MAGIC); 297 config |= MLX4_EN_WOL_DO_MODIFY; 298 } 299 300 err = mlx4_wol_write(priv->mdev->dev, config, priv->port); 301 if (err) 302 en_err(priv, "Failed to set WoL information\n"); 303 304 return err; 305 } 306 307 struct bitmap_iterator { 308 unsigned long *stats_bitmap; 309 unsigned int count; 310 unsigned int iterator; 311 bool advance_array; /* if set, force no increments */ 312 }; 313 314 static inline void bitmap_iterator_init(struct bitmap_iterator *h, 315 unsigned long *stats_bitmap, 316 int count) 317 { 318 h->iterator = 0; 319 h->advance_array = !bitmap_empty(stats_bitmap, count); 320 h->count = h->advance_array ? bitmap_weight(stats_bitmap, count) 321 : count; 322 h->stats_bitmap = stats_bitmap; 323 } 324 325 static inline int bitmap_iterator_test(struct bitmap_iterator *h) 326 { 327 return !h->advance_array ? 1 : test_bit(h->iterator, h->stats_bitmap); 328 } 329 330 static inline int bitmap_iterator_inc(struct bitmap_iterator *h) 331 { 332 return h->iterator++; 333 } 334 335 static inline unsigned int 336 bitmap_iterator_count(struct bitmap_iterator *h) 337 { 338 return h->count; 339 } 340 341 static int mlx4_en_get_sset_count(struct net_device *dev, int sset) 342 { 343 struct mlx4_en_priv *priv = netdev_priv(dev); 344 struct bitmap_iterator it; 345 346 bitmap_iterator_init(&it, priv->stats_bitmap.bitmap, NUM_ALL_STATS); 347 348 switch (sset) { 349 case ETH_SS_STATS: 350 return bitmap_iterator_count(&it) + 351 (priv->tx_ring_num[TX] * 2) + 352 (priv->rx_ring_num * (3 + NUM_XDP_STATS)); 353 case ETH_SS_TEST: 354 return MLX4_EN_NUM_SELF_TEST - !(priv->mdev->dev->caps.flags 355 & MLX4_DEV_CAP_FLAG_UC_LOOPBACK) * 2; 356 case ETH_SS_PRIV_FLAGS: 357 return ARRAY_SIZE(mlx4_en_priv_flags); 358 default: 359 return -EOPNOTSUPP; 360 } 361 } 362 363 static void mlx4_en_get_ethtool_stats(struct net_device *dev, 364 struct ethtool_stats *stats, uint64_t *data) 365 { 366 struct mlx4_en_priv *priv = netdev_priv(dev); 367 int index = 0; 368 int i; 369 struct bitmap_iterator it; 370 371 bitmap_iterator_init(&it, priv->stats_bitmap.bitmap, NUM_ALL_STATS); 372 373 spin_lock_bh(&priv->stats_lock); 374 375 mlx4_en_fold_software_stats(dev); 376 377 for (i = 0; i < NUM_MAIN_STATS; i++, bitmap_iterator_inc(&it)) 378 if (bitmap_iterator_test(&it)) 379 data[index++] = ((unsigned long *)&dev->stats)[i]; 380 381 for (i = 0; i < NUM_PORT_STATS; i++, bitmap_iterator_inc(&it)) 382 if (bitmap_iterator_test(&it)) 383 data[index++] = ((unsigned long *)&priv->port_stats)[i]; 384 385 for (i = 0; i < NUM_PF_STATS; i++, bitmap_iterator_inc(&it)) 386 if (bitmap_iterator_test(&it)) 387 data[index++] = 388 ((unsigned long *)&priv->pf_stats)[i]; 389 390 for (i = 0; i < NUM_FLOW_PRIORITY_STATS_RX; 391 i++, bitmap_iterator_inc(&it)) 392 if (bitmap_iterator_test(&it)) 393 data[index++] = 394 ((u64 *)&priv->rx_priority_flowstats)[i]; 395 396 for (i = 0; i < NUM_FLOW_STATS_RX; i++, bitmap_iterator_inc(&it)) 397 if (bitmap_iterator_test(&it)) 398 data[index++] = ((u64 *)&priv->rx_flowstats)[i]; 399 400 for (i = 0; i < NUM_FLOW_PRIORITY_STATS_TX; 401 i++, bitmap_iterator_inc(&it)) 402 if (bitmap_iterator_test(&it)) 403 data[index++] = 404 ((u64 *)&priv->tx_priority_flowstats)[i]; 405 406 for (i = 0; i < NUM_FLOW_STATS_TX; i++, bitmap_iterator_inc(&it)) 407 if (bitmap_iterator_test(&it)) 408 data[index++] = ((u64 *)&priv->tx_flowstats)[i]; 409 410 for (i = 0; i < NUM_PKT_STATS; i++, bitmap_iterator_inc(&it)) 411 if (bitmap_iterator_test(&it)) 412 data[index++] = ((unsigned long *)&priv->pkstats)[i]; 413 414 for (i = 0; i < NUM_XDP_STATS; i++, bitmap_iterator_inc(&it)) 415 if (bitmap_iterator_test(&it)) 416 data[index++] = ((unsigned long *)&priv->xdp_stats)[i]; 417 418 for (i = 0; i < NUM_PHY_STATS; i++, bitmap_iterator_inc(&it)) 419 if (bitmap_iterator_test(&it)) 420 data[index++] = ((unsigned long *)&priv->phy_stats)[i]; 421 422 for (i = 0; i < priv->tx_ring_num[TX]; i++) { 423 data[index++] = priv->tx_ring[TX][i]->packets; 424 data[index++] = priv->tx_ring[TX][i]->bytes; 425 } 426 for (i = 0; i < priv->rx_ring_num; i++) { 427 data[index++] = priv->rx_ring[i]->packets; 428 data[index++] = priv->rx_ring[i]->bytes; 429 data[index++] = priv->rx_ring[i]->dropped; 430 data[index++] = priv->rx_ring[i]->xdp_drop; 431 data[index++] = priv->rx_ring[i]->xdp_tx; 432 data[index++] = priv->rx_ring[i]->xdp_tx_full; 433 } 434 spin_unlock_bh(&priv->stats_lock); 435 436 } 437 438 static void mlx4_en_self_test(struct net_device *dev, 439 struct ethtool_test *etest, u64 *buf) 440 { 441 mlx4_en_ex_selftest(dev, &etest->flags, buf); 442 } 443 444 static void mlx4_en_get_strings(struct net_device *dev, 445 uint32_t stringset, uint8_t *data) 446 { 447 struct mlx4_en_priv *priv = netdev_priv(dev); 448 int index = 0; 449 int i, strings = 0; 450 struct bitmap_iterator it; 451 452 bitmap_iterator_init(&it, priv->stats_bitmap.bitmap, NUM_ALL_STATS); 453 454 switch (stringset) { 455 case ETH_SS_TEST: 456 for (i = 0; i < MLX4_EN_NUM_SELF_TEST - 2; i++) 457 strcpy(data + i * ETH_GSTRING_LEN, mlx4_en_test_names[i]); 458 if (priv->mdev->dev->caps.flags & MLX4_DEV_CAP_FLAG_UC_LOOPBACK) 459 for (; i < MLX4_EN_NUM_SELF_TEST; i++) 460 strcpy(data + i * ETH_GSTRING_LEN, mlx4_en_test_names[i]); 461 break; 462 463 case ETH_SS_STATS: 464 /* Add main counters */ 465 for (i = 0; i < NUM_MAIN_STATS; i++, strings++, 466 bitmap_iterator_inc(&it)) 467 if (bitmap_iterator_test(&it)) 468 strcpy(data + (index++) * ETH_GSTRING_LEN, 469 main_strings[strings]); 470 471 for (i = 0; i < NUM_PORT_STATS; i++, strings++, 472 bitmap_iterator_inc(&it)) 473 if (bitmap_iterator_test(&it)) 474 strcpy(data + (index++) * ETH_GSTRING_LEN, 475 main_strings[strings]); 476 477 for (i = 0; i < NUM_PF_STATS; i++, strings++, 478 bitmap_iterator_inc(&it)) 479 if (bitmap_iterator_test(&it)) 480 strcpy(data + (index++) * ETH_GSTRING_LEN, 481 main_strings[strings]); 482 483 for (i = 0; i < NUM_FLOW_STATS; i++, strings++, 484 bitmap_iterator_inc(&it)) 485 if (bitmap_iterator_test(&it)) 486 strcpy(data + (index++) * ETH_GSTRING_LEN, 487 main_strings[strings]); 488 489 for (i = 0; i < NUM_PKT_STATS; i++, strings++, 490 bitmap_iterator_inc(&it)) 491 if (bitmap_iterator_test(&it)) 492 strcpy(data + (index++) * ETH_GSTRING_LEN, 493 main_strings[strings]); 494 495 for (i = 0; i < NUM_XDP_STATS; i++, strings++, 496 bitmap_iterator_inc(&it)) 497 if (bitmap_iterator_test(&it)) 498 strcpy(data + (index++) * ETH_GSTRING_LEN, 499 main_strings[strings]); 500 501 for (i = 0; i < NUM_PHY_STATS; i++, strings++, 502 bitmap_iterator_inc(&it)) 503 if (bitmap_iterator_test(&it)) 504 strcpy(data + (index++) * ETH_GSTRING_LEN, 505 main_strings[strings]); 506 507 for (i = 0; i < priv->tx_ring_num[TX]; i++) { 508 sprintf(data + (index++) * ETH_GSTRING_LEN, 509 "tx%d_packets", i); 510 sprintf(data + (index++) * ETH_GSTRING_LEN, 511 "tx%d_bytes", i); 512 } 513 for (i = 0; i < priv->rx_ring_num; i++) { 514 sprintf(data + (index++) * ETH_GSTRING_LEN, 515 "rx%d_packets", i); 516 sprintf(data + (index++) * ETH_GSTRING_LEN, 517 "rx%d_bytes", i); 518 sprintf(data + (index++) * ETH_GSTRING_LEN, 519 "rx%d_dropped", i); 520 sprintf(data + (index++) * ETH_GSTRING_LEN, 521 "rx%d_xdp_drop", i); 522 sprintf(data + (index++) * ETH_GSTRING_LEN, 523 "rx%d_xdp_tx", i); 524 sprintf(data + (index++) * ETH_GSTRING_LEN, 525 "rx%d_xdp_tx_full", i); 526 } 527 break; 528 case ETH_SS_PRIV_FLAGS: 529 for (i = 0; i < ARRAY_SIZE(mlx4_en_priv_flags); i++) 530 strcpy(data + i * ETH_GSTRING_LEN, 531 mlx4_en_priv_flags[i]); 532 break; 533 534 } 535 } 536 537 static u32 mlx4_en_autoneg_get(struct net_device *dev) 538 { 539 struct mlx4_en_priv *priv = netdev_priv(dev); 540 struct mlx4_en_dev *mdev = priv->mdev; 541 u32 autoneg = AUTONEG_DISABLE; 542 543 if ((mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_ETH_BACKPL_AN_REP) && 544 (priv->port_state.flags & MLX4_EN_PORT_ANE)) 545 autoneg = AUTONEG_ENABLE; 546 547 return autoneg; 548 } 549 550 static void ptys2ethtool_update_supported_port(unsigned long *mask, 551 struct mlx4_ptys_reg *ptys_reg) 552 { 553 u32 eth_proto = be32_to_cpu(ptys_reg->eth_proto_cap); 554 555 if (eth_proto & (MLX4_PROT_MASK(MLX4_10GBASE_T) 556 | MLX4_PROT_MASK(MLX4_1000BASE_T) 557 | MLX4_PROT_MASK(MLX4_100BASE_TX))) { 558 __set_bit(ETHTOOL_LINK_MODE_TP_BIT, mask); 559 } else if (eth_proto & (MLX4_PROT_MASK(MLX4_10GBASE_CR) 560 | MLX4_PROT_MASK(MLX4_10GBASE_SR) 561 | MLX4_PROT_MASK(MLX4_56GBASE_SR4) 562 | MLX4_PROT_MASK(MLX4_40GBASE_CR4) 563 | MLX4_PROT_MASK(MLX4_40GBASE_SR4) 564 | MLX4_PROT_MASK(MLX4_1000BASE_CX_SGMII))) { 565 __set_bit(ETHTOOL_LINK_MODE_FIBRE_BIT, mask); 566 } else if (eth_proto & (MLX4_PROT_MASK(MLX4_56GBASE_KR4) 567 | MLX4_PROT_MASK(MLX4_40GBASE_KR4) 568 | MLX4_PROT_MASK(MLX4_20GBASE_KR2) 569 | MLX4_PROT_MASK(MLX4_10GBASE_KR) 570 | MLX4_PROT_MASK(MLX4_10GBASE_KX4) 571 | MLX4_PROT_MASK(MLX4_1000BASE_KX))) { 572 __set_bit(ETHTOOL_LINK_MODE_Backplane_BIT, mask); 573 } 574 } 575 576 static u32 ptys_get_active_port(struct mlx4_ptys_reg *ptys_reg) 577 { 578 u32 eth_proto = be32_to_cpu(ptys_reg->eth_proto_oper); 579 580 if (!eth_proto) /* link down */ 581 eth_proto = be32_to_cpu(ptys_reg->eth_proto_cap); 582 583 if (eth_proto & (MLX4_PROT_MASK(MLX4_10GBASE_T) 584 | MLX4_PROT_MASK(MLX4_1000BASE_T) 585 | MLX4_PROT_MASK(MLX4_100BASE_TX))) { 586 return PORT_TP; 587 } 588 589 if (eth_proto & (MLX4_PROT_MASK(MLX4_10GBASE_SR) 590 | MLX4_PROT_MASK(MLX4_56GBASE_SR4) 591 | MLX4_PROT_MASK(MLX4_40GBASE_SR4) 592 | MLX4_PROT_MASK(MLX4_1000BASE_CX_SGMII))) { 593 return PORT_FIBRE; 594 } 595 596 if (eth_proto & (MLX4_PROT_MASK(MLX4_10GBASE_CR) 597 | MLX4_PROT_MASK(MLX4_56GBASE_CR4) 598 | MLX4_PROT_MASK(MLX4_40GBASE_CR4))) { 599 return PORT_DA; 600 } 601 602 if (eth_proto & (MLX4_PROT_MASK(MLX4_56GBASE_KR4) 603 | MLX4_PROT_MASK(MLX4_40GBASE_KR4) 604 | MLX4_PROT_MASK(MLX4_20GBASE_KR2) 605 | MLX4_PROT_MASK(MLX4_10GBASE_KR) 606 | MLX4_PROT_MASK(MLX4_10GBASE_KX4) 607 | MLX4_PROT_MASK(MLX4_1000BASE_KX))) { 608 return PORT_NONE; 609 } 610 return PORT_OTHER; 611 } 612 613 #define MLX4_LINK_MODES_SZ \ 614 (FIELD_SIZEOF(struct mlx4_ptys_reg, eth_proto_cap) * 8) 615 616 enum ethtool_report { 617 SUPPORTED = 0, 618 ADVERTISED = 1, 619 }; 620 621 struct ptys2ethtool_config { 622 __ETHTOOL_DECLARE_LINK_MODE_MASK(supported); 623 __ETHTOOL_DECLARE_LINK_MODE_MASK(advertised); 624 u32 speed; 625 }; 626 627 static unsigned long *ptys2ethtool_link_mode(struct ptys2ethtool_config *cfg, 628 enum ethtool_report report) 629 { 630 switch (report) { 631 case SUPPORTED: 632 return cfg->supported; 633 case ADVERTISED: 634 return cfg->advertised; 635 } 636 return NULL; 637 } 638 639 #define MLX4_BUILD_PTYS2ETHTOOL_CONFIG(reg_, speed_, ...) \ 640 ({ \ 641 struct ptys2ethtool_config *cfg; \ 642 static const unsigned int modes[] = { __VA_ARGS__ }; \ 643 unsigned int i; \ 644 cfg = &ptys2ethtool_map[reg_]; \ 645 cfg->speed = speed_; \ 646 bitmap_zero(cfg->supported, \ 647 __ETHTOOL_LINK_MODE_MASK_NBITS); \ 648 bitmap_zero(cfg->advertised, \ 649 __ETHTOOL_LINK_MODE_MASK_NBITS); \ 650 for (i = 0 ; i < ARRAY_SIZE(modes) ; ++i) { \ 651 __set_bit(modes[i], cfg->supported); \ 652 __set_bit(modes[i], cfg->advertised); \ 653 } \ 654 }) 655 656 /* Translates mlx4 link mode to equivalent ethtool Link modes/speed */ 657 static struct ptys2ethtool_config ptys2ethtool_map[MLX4_LINK_MODES_SZ]; 658 659 void __init mlx4_en_init_ptys2ethtool_map(void) 660 { 661 MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_100BASE_TX, SPEED_100, 662 ETHTOOL_LINK_MODE_100baseT_Full_BIT); 663 MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_1000BASE_T, SPEED_1000, 664 ETHTOOL_LINK_MODE_1000baseT_Full_BIT); 665 MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_1000BASE_CX_SGMII, SPEED_1000, 666 ETHTOOL_LINK_MODE_1000baseKX_Full_BIT); 667 MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_1000BASE_KX, SPEED_1000, 668 ETHTOOL_LINK_MODE_1000baseKX_Full_BIT); 669 MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_10GBASE_T, SPEED_10000, 670 ETHTOOL_LINK_MODE_10000baseT_Full_BIT); 671 MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_10GBASE_CX4, SPEED_10000, 672 ETHTOOL_LINK_MODE_10000baseKX4_Full_BIT); 673 MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_10GBASE_KX4, SPEED_10000, 674 ETHTOOL_LINK_MODE_10000baseKX4_Full_BIT); 675 MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_10GBASE_KR, SPEED_10000, 676 ETHTOOL_LINK_MODE_10000baseKR_Full_BIT); 677 MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_10GBASE_CR, SPEED_10000, 678 ETHTOOL_LINK_MODE_10000baseKR_Full_BIT); 679 MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_10GBASE_SR, SPEED_10000, 680 ETHTOOL_LINK_MODE_10000baseKR_Full_BIT); 681 MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_20GBASE_KR2, SPEED_20000, 682 ETHTOOL_LINK_MODE_20000baseMLD2_Full_BIT, 683 ETHTOOL_LINK_MODE_20000baseKR2_Full_BIT); 684 MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_40GBASE_CR4, SPEED_40000, 685 ETHTOOL_LINK_MODE_40000baseCR4_Full_BIT); 686 MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_40GBASE_KR4, SPEED_40000, 687 ETHTOOL_LINK_MODE_40000baseKR4_Full_BIT); 688 MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_40GBASE_SR4, SPEED_40000, 689 ETHTOOL_LINK_MODE_40000baseSR4_Full_BIT); 690 MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_56GBASE_KR4, SPEED_56000, 691 ETHTOOL_LINK_MODE_56000baseKR4_Full_BIT); 692 MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_56GBASE_CR4, SPEED_56000, 693 ETHTOOL_LINK_MODE_56000baseCR4_Full_BIT); 694 MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_56GBASE_SR4, SPEED_56000, 695 ETHTOOL_LINK_MODE_56000baseSR4_Full_BIT); 696 }; 697 698 static void ptys2ethtool_update_link_modes(unsigned long *link_modes, 699 u32 eth_proto, 700 enum ethtool_report report) 701 { 702 int i; 703 for (i = 0; i < MLX4_LINK_MODES_SZ; i++) { 704 if (eth_proto & MLX4_PROT_MASK(i)) 705 bitmap_or(link_modes, link_modes, 706 ptys2ethtool_link_mode(&ptys2ethtool_map[i], 707 report), 708 __ETHTOOL_LINK_MODE_MASK_NBITS); 709 } 710 } 711 712 static u32 ethtool2ptys_link_modes(const unsigned long *link_modes, 713 enum ethtool_report report) 714 { 715 int i; 716 u32 ptys_modes = 0; 717 718 for (i = 0; i < MLX4_LINK_MODES_SZ; i++) { 719 if (bitmap_intersects( 720 ptys2ethtool_link_mode(&ptys2ethtool_map[i], 721 report), 722 link_modes, 723 __ETHTOOL_LINK_MODE_MASK_NBITS)) 724 ptys_modes |= 1 << i; 725 } 726 return ptys_modes; 727 } 728 729 /* Convert actual speed (SPEED_XXX) to ptys link modes */ 730 static u32 speed2ptys_link_modes(u32 speed) 731 { 732 int i; 733 u32 ptys_modes = 0; 734 735 for (i = 0; i < MLX4_LINK_MODES_SZ; i++) { 736 if (ptys2ethtool_map[i].speed == speed) 737 ptys_modes |= 1 << i; 738 } 739 return ptys_modes; 740 } 741 742 static int 743 ethtool_get_ptys_link_ksettings(struct net_device *dev, 744 struct ethtool_link_ksettings *link_ksettings) 745 { 746 struct mlx4_en_priv *priv = netdev_priv(dev); 747 struct mlx4_ptys_reg ptys_reg; 748 u32 eth_proto; 749 int ret; 750 751 memset(&ptys_reg, 0, sizeof(ptys_reg)); 752 ptys_reg.local_port = priv->port; 753 ptys_reg.proto_mask = MLX4_PTYS_EN; 754 ret = mlx4_ACCESS_PTYS_REG(priv->mdev->dev, 755 MLX4_ACCESS_REG_QUERY, &ptys_reg); 756 if (ret) { 757 en_warn(priv, "Failed to run mlx4_ACCESS_PTYS_REG status(%x)", 758 ret); 759 return ret; 760 } 761 en_dbg(DRV, priv, "ptys_reg.proto_mask %x\n", 762 ptys_reg.proto_mask); 763 en_dbg(DRV, priv, "ptys_reg.eth_proto_cap %x\n", 764 be32_to_cpu(ptys_reg.eth_proto_cap)); 765 en_dbg(DRV, priv, "ptys_reg.eth_proto_admin %x\n", 766 be32_to_cpu(ptys_reg.eth_proto_admin)); 767 en_dbg(DRV, priv, "ptys_reg.eth_proto_oper %x\n", 768 be32_to_cpu(ptys_reg.eth_proto_oper)); 769 en_dbg(DRV, priv, "ptys_reg.eth_proto_lp_adv %x\n", 770 be32_to_cpu(ptys_reg.eth_proto_lp_adv)); 771 772 /* reset supported/advertising masks */ 773 ethtool_link_ksettings_zero_link_mode(link_ksettings, supported); 774 ethtool_link_ksettings_zero_link_mode(link_ksettings, advertising); 775 776 ptys2ethtool_update_supported_port(link_ksettings->link_modes.supported, 777 &ptys_reg); 778 779 eth_proto = be32_to_cpu(ptys_reg.eth_proto_cap); 780 ptys2ethtool_update_link_modes(link_ksettings->link_modes.supported, 781 eth_proto, SUPPORTED); 782 783 eth_proto = be32_to_cpu(ptys_reg.eth_proto_admin); 784 ptys2ethtool_update_link_modes(link_ksettings->link_modes.advertising, 785 eth_proto, ADVERTISED); 786 787 ethtool_link_ksettings_add_link_mode(link_ksettings, supported, 788 Pause); 789 ethtool_link_ksettings_add_link_mode(link_ksettings, supported, 790 Asym_Pause); 791 792 if (priv->prof->tx_pause) 793 ethtool_link_ksettings_add_link_mode(link_ksettings, 794 advertising, Pause); 795 if (priv->prof->tx_pause ^ priv->prof->rx_pause) 796 ethtool_link_ksettings_add_link_mode(link_ksettings, 797 advertising, Asym_Pause); 798 799 link_ksettings->base.port = ptys_get_active_port(&ptys_reg); 800 801 if (mlx4_en_autoneg_get(dev)) { 802 ethtool_link_ksettings_add_link_mode(link_ksettings, 803 supported, Autoneg); 804 ethtool_link_ksettings_add_link_mode(link_ksettings, 805 advertising, Autoneg); 806 } 807 808 link_ksettings->base.autoneg 809 = (priv->port_state.flags & MLX4_EN_PORT_ANC) ? 810 AUTONEG_ENABLE : AUTONEG_DISABLE; 811 812 eth_proto = be32_to_cpu(ptys_reg.eth_proto_lp_adv); 813 814 ethtool_link_ksettings_zero_link_mode(link_ksettings, lp_advertising); 815 ptys2ethtool_update_link_modes( 816 link_ksettings->link_modes.lp_advertising, 817 eth_proto, ADVERTISED); 818 if (priv->port_state.flags & MLX4_EN_PORT_ANC) 819 ethtool_link_ksettings_add_link_mode(link_ksettings, 820 lp_advertising, Autoneg); 821 822 link_ksettings->base.phy_address = 0; 823 link_ksettings->base.mdio_support = 0; 824 link_ksettings->base.eth_tp_mdix = ETH_TP_MDI_INVALID; 825 link_ksettings->base.eth_tp_mdix_ctrl = ETH_TP_MDI_AUTO; 826 827 return ret; 828 } 829 830 static void 831 ethtool_get_default_link_ksettings( 832 struct net_device *dev, struct ethtool_link_ksettings *link_ksettings) 833 { 834 struct mlx4_en_priv *priv = netdev_priv(dev); 835 int trans_type; 836 837 link_ksettings->base.autoneg = AUTONEG_DISABLE; 838 839 ethtool_link_ksettings_zero_link_mode(link_ksettings, supported); 840 ethtool_link_ksettings_add_link_mode(link_ksettings, supported, 841 10000baseT_Full); 842 843 ethtool_link_ksettings_zero_link_mode(link_ksettings, advertising); 844 ethtool_link_ksettings_add_link_mode(link_ksettings, advertising, 845 10000baseT_Full); 846 847 trans_type = priv->port_state.transceiver; 848 if (trans_type > 0 && trans_type <= 0xC) { 849 link_ksettings->base.port = PORT_FIBRE; 850 ethtool_link_ksettings_add_link_mode(link_ksettings, 851 supported, FIBRE); 852 ethtool_link_ksettings_add_link_mode(link_ksettings, 853 advertising, FIBRE); 854 } else if (trans_type == 0x80 || trans_type == 0) { 855 link_ksettings->base.port = PORT_TP; 856 ethtool_link_ksettings_add_link_mode(link_ksettings, 857 supported, TP); 858 ethtool_link_ksettings_add_link_mode(link_ksettings, 859 advertising, TP); 860 } else { 861 link_ksettings->base.port = -1; 862 } 863 } 864 865 static int 866 mlx4_en_get_link_ksettings(struct net_device *dev, 867 struct ethtool_link_ksettings *link_ksettings) 868 { 869 struct mlx4_en_priv *priv = netdev_priv(dev); 870 int ret = -EINVAL; 871 872 if (mlx4_en_QUERY_PORT(priv->mdev, priv->port)) 873 return -ENOMEM; 874 875 en_dbg(DRV, priv, "query port state.flags ANC(%x) ANE(%x)\n", 876 priv->port_state.flags & MLX4_EN_PORT_ANC, 877 priv->port_state.flags & MLX4_EN_PORT_ANE); 878 879 if (priv->mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_ETH_PROT_CTRL) 880 ret = ethtool_get_ptys_link_ksettings(dev, link_ksettings); 881 if (ret) /* ETH PROT CRTL is not supported or PTYS CMD failed */ 882 ethtool_get_default_link_ksettings(dev, link_ksettings); 883 884 if (netif_carrier_ok(dev)) { 885 link_ksettings->base.speed = priv->port_state.link_speed; 886 link_ksettings->base.duplex = DUPLEX_FULL; 887 } else { 888 link_ksettings->base.speed = SPEED_UNKNOWN; 889 link_ksettings->base.duplex = DUPLEX_UNKNOWN; 890 } 891 return 0; 892 } 893 894 /* Calculate PTYS admin according ethtool speed (SPEED_XXX) */ 895 static __be32 speed_set_ptys_admin(struct mlx4_en_priv *priv, u32 speed, 896 __be32 proto_cap) 897 { 898 __be32 proto_admin = 0; 899 900 if (!speed) { /* Speed = 0 ==> Reset Link modes */ 901 proto_admin = proto_cap; 902 en_info(priv, "Speed was set to 0, Reset advertised Link Modes to default (%x)\n", 903 be32_to_cpu(proto_cap)); 904 } else { 905 u32 ptys_link_modes = speed2ptys_link_modes(speed); 906 907 proto_admin = cpu_to_be32(ptys_link_modes) & proto_cap; 908 en_info(priv, "Setting Speed to %d\n", speed); 909 } 910 return proto_admin; 911 } 912 913 static int 914 mlx4_en_set_link_ksettings(struct net_device *dev, 915 const struct ethtool_link_ksettings *link_ksettings) 916 { 917 struct mlx4_en_priv *priv = netdev_priv(dev); 918 struct mlx4_ptys_reg ptys_reg; 919 __be32 proto_admin; 920 u8 cur_autoneg; 921 int ret; 922 923 u32 ptys_adv = ethtool2ptys_link_modes( 924 link_ksettings->link_modes.advertising, ADVERTISED); 925 const int speed = link_ksettings->base.speed; 926 927 en_dbg(DRV, priv, 928 "Set Speed=%d adv={%*pbl} autoneg=%d duplex=%d\n", 929 speed, __ETHTOOL_LINK_MODE_MASK_NBITS, 930 link_ksettings->link_modes.advertising, 931 link_ksettings->base.autoneg, 932 link_ksettings->base.duplex); 933 934 if (!(priv->mdev->dev->caps.flags2 & 935 MLX4_DEV_CAP_FLAG2_ETH_PROT_CTRL) || 936 (link_ksettings->base.duplex == DUPLEX_HALF)) 937 return -EINVAL; 938 939 memset(&ptys_reg, 0, sizeof(ptys_reg)); 940 ptys_reg.local_port = priv->port; 941 ptys_reg.proto_mask = MLX4_PTYS_EN; 942 ret = mlx4_ACCESS_PTYS_REG(priv->mdev->dev, 943 MLX4_ACCESS_REG_QUERY, &ptys_reg); 944 if (ret) { 945 en_warn(priv, "Failed to QUERY mlx4_ACCESS_PTYS_REG status(%x)\n", 946 ret); 947 return 0; 948 } 949 950 cur_autoneg = ptys_reg.flags & MLX4_PTYS_AN_DISABLE_ADMIN ? 951 AUTONEG_DISABLE : AUTONEG_ENABLE; 952 953 if (link_ksettings->base.autoneg == AUTONEG_DISABLE) { 954 proto_admin = speed_set_ptys_admin(priv, speed, 955 ptys_reg.eth_proto_cap); 956 if ((be32_to_cpu(proto_admin) & 957 (MLX4_PROT_MASK(MLX4_1000BASE_CX_SGMII) | 958 MLX4_PROT_MASK(MLX4_1000BASE_KX))) && 959 (ptys_reg.flags & MLX4_PTYS_AN_DISABLE_CAP)) 960 ptys_reg.flags |= MLX4_PTYS_AN_DISABLE_ADMIN; 961 } else { 962 proto_admin = cpu_to_be32(ptys_adv); 963 ptys_reg.flags &= ~MLX4_PTYS_AN_DISABLE_ADMIN; 964 } 965 966 proto_admin &= ptys_reg.eth_proto_cap; 967 if (!proto_admin) { 968 en_warn(priv, "Not supported link mode(s) requested, check supported link modes.\n"); 969 return -EINVAL; /* nothing to change due to bad input */ 970 } 971 972 if ((proto_admin == ptys_reg.eth_proto_admin) && 973 ((ptys_reg.flags & MLX4_PTYS_AN_DISABLE_CAP) && 974 (link_ksettings->base.autoneg == cur_autoneg))) 975 return 0; /* Nothing to change */ 976 977 en_dbg(DRV, priv, "mlx4_ACCESS_PTYS_REG SET: ptys_reg.eth_proto_admin = 0x%x\n", 978 be32_to_cpu(proto_admin)); 979 980 ptys_reg.eth_proto_admin = proto_admin; 981 ret = mlx4_ACCESS_PTYS_REG(priv->mdev->dev, MLX4_ACCESS_REG_WRITE, 982 &ptys_reg); 983 if (ret) { 984 en_warn(priv, "Failed to write mlx4_ACCESS_PTYS_REG eth_proto_admin(0x%x) status(0x%x)", 985 be32_to_cpu(ptys_reg.eth_proto_admin), ret); 986 return ret; 987 } 988 989 mutex_lock(&priv->mdev->state_lock); 990 if (priv->port_up) { 991 en_warn(priv, "Port link mode changed, restarting port...\n"); 992 mlx4_en_stop_port(dev, 1); 993 if (mlx4_en_start_port(dev)) 994 en_err(priv, "Failed restarting port %d\n", priv->port); 995 } 996 mutex_unlock(&priv->mdev->state_lock); 997 return 0; 998 } 999 1000 static int mlx4_en_get_coalesce(struct net_device *dev, 1001 struct ethtool_coalesce *coal) 1002 { 1003 struct mlx4_en_priv *priv = netdev_priv(dev); 1004 1005 coal->tx_coalesce_usecs = priv->tx_usecs; 1006 coal->tx_max_coalesced_frames = priv->tx_frames; 1007 coal->tx_max_coalesced_frames_irq = priv->tx_work_limit; 1008 1009 coal->rx_coalesce_usecs = priv->rx_usecs; 1010 coal->rx_max_coalesced_frames = priv->rx_frames; 1011 1012 coal->pkt_rate_low = priv->pkt_rate_low; 1013 coal->rx_coalesce_usecs_low = priv->rx_usecs_low; 1014 coal->pkt_rate_high = priv->pkt_rate_high; 1015 coal->rx_coalesce_usecs_high = priv->rx_usecs_high; 1016 coal->rate_sample_interval = priv->sample_interval; 1017 coal->use_adaptive_rx_coalesce = priv->adaptive_rx_coal; 1018 1019 return 0; 1020 } 1021 1022 static int mlx4_en_set_coalesce(struct net_device *dev, 1023 struct ethtool_coalesce *coal) 1024 { 1025 struct mlx4_en_priv *priv = netdev_priv(dev); 1026 1027 if (!coal->tx_max_coalesced_frames_irq) 1028 return -EINVAL; 1029 1030 if (coal->tx_coalesce_usecs > MLX4_EN_MAX_COAL_TIME || 1031 coal->rx_coalesce_usecs > MLX4_EN_MAX_COAL_TIME || 1032 coal->rx_coalesce_usecs_low > MLX4_EN_MAX_COAL_TIME || 1033 coal->rx_coalesce_usecs_high > MLX4_EN_MAX_COAL_TIME) { 1034 netdev_info(dev, "%s: maximum coalesce time supported is %d usecs\n", 1035 __func__, MLX4_EN_MAX_COAL_TIME); 1036 return -ERANGE; 1037 } 1038 1039 if (coal->tx_max_coalesced_frames > MLX4_EN_MAX_COAL_PKTS || 1040 coal->rx_max_coalesced_frames > MLX4_EN_MAX_COAL_PKTS) { 1041 netdev_info(dev, "%s: maximum coalesced frames supported is %d\n", 1042 __func__, MLX4_EN_MAX_COAL_PKTS); 1043 return -ERANGE; 1044 } 1045 1046 priv->rx_frames = (coal->rx_max_coalesced_frames == 1047 MLX4_EN_AUTO_CONF) ? 1048 MLX4_EN_RX_COAL_TARGET : 1049 coal->rx_max_coalesced_frames; 1050 priv->rx_usecs = (coal->rx_coalesce_usecs == 1051 MLX4_EN_AUTO_CONF) ? 1052 MLX4_EN_RX_COAL_TIME : 1053 coal->rx_coalesce_usecs; 1054 1055 /* Setting TX coalescing parameters */ 1056 if (coal->tx_coalesce_usecs != priv->tx_usecs || 1057 coal->tx_max_coalesced_frames != priv->tx_frames) { 1058 priv->tx_usecs = coal->tx_coalesce_usecs; 1059 priv->tx_frames = coal->tx_max_coalesced_frames; 1060 } 1061 1062 /* Set adaptive coalescing params */ 1063 priv->pkt_rate_low = coal->pkt_rate_low; 1064 priv->rx_usecs_low = coal->rx_coalesce_usecs_low; 1065 priv->pkt_rate_high = coal->pkt_rate_high; 1066 priv->rx_usecs_high = coal->rx_coalesce_usecs_high; 1067 priv->sample_interval = coal->rate_sample_interval; 1068 priv->adaptive_rx_coal = coal->use_adaptive_rx_coalesce; 1069 priv->tx_work_limit = coal->tx_max_coalesced_frames_irq; 1070 1071 return mlx4_en_moderation_update(priv); 1072 } 1073 1074 static int mlx4_en_set_pauseparam(struct net_device *dev, 1075 struct ethtool_pauseparam *pause) 1076 { 1077 struct mlx4_en_priv *priv = netdev_priv(dev); 1078 struct mlx4_en_dev *mdev = priv->mdev; 1079 u8 tx_pause, tx_ppp, rx_pause, rx_ppp; 1080 int err; 1081 1082 if (pause->autoneg) 1083 return -EINVAL; 1084 1085 tx_pause = !!(pause->tx_pause); 1086 rx_pause = !!(pause->rx_pause); 1087 rx_ppp = (tx_pause || rx_pause) ? 0 : priv->prof->rx_ppp; 1088 tx_ppp = (tx_pause || rx_pause) ? 0 : priv->prof->tx_ppp; 1089 1090 err = mlx4_SET_PORT_general(mdev->dev, priv->port, 1091 priv->rx_skb_size + ETH_FCS_LEN, 1092 tx_pause, tx_ppp, rx_pause, rx_ppp); 1093 if (err) { 1094 en_err(priv, "Failed setting pause params, err = %d\n", err); 1095 return err; 1096 } 1097 1098 mlx4_en_update_pfc_stats_bitmap(mdev->dev, &priv->stats_bitmap, 1099 rx_ppp, rx_pause, tx_ppp, tx_pause); 1100 1101 priv->prof->tx_pause = tx_pause; 1102 priv->prof->rx_pause = rx_pause; 1103 priv->prof->tx_ppp = tx_ppp; 1104 priv->prof->rx_ppp = rx_ppp; 1105 1106 return err; 1107 } 1108 1109 static void mlx4_en_get_pauseparam(struct net_device *dev, 1110 struct ethtool_pauseparam *pause) 1111 { 1112 struct mlx4_en_priv *priv = netdev_priv(dev); 1113 1114 pause->tx_pause = priv->prof->tx_pause; 1115 pause->rx_pause = priv->prof->rx_pause; 1116 } 1117 1118 static int mlx4_en_set_ringparam(struct net_device *dev, 1119 struct ethtool_ringparam *param) 1120 { 1121 struct mlx4_en_priv *priv = netdev_priv(dev); 1122 struct mlx4_en_dev *mdev = priv->mdev; 1123 struct mlx4_en_port_profile new_prof; 1124 struct mlx4_en_priv *tmp; 1125 u32 rx_size, tx_size; 1126 int port_up = 0; 1127 int err = 0; 1128 1129 if (param->rx_jumbo_pending || param->rx_mini_pending) 1130 return -EINVAL; 1131 1132 if (param->rx_pending < MLX4_EN_MIN_RX_SIZE) { 1133 en_warn(priv, "%s: rx_pending (%d) < min (%d)\n", 1134 __func__, param->rx_pending, 1135 MLX4_EN_MIN_RX_SIZE); 1136 return -EINVAL; 1137 } 1138 if (param->tx_pending < MLX4_EN_MIN_TX_SIZE) { 1139 en_warn(priv, "%s: tx_pending (%d) < min (%lu)\n", 1140 __func__, param->tx_pending, 1141 MLX4_EN_MIN_TX_SIZE); 1142 return -EINVAL; 1143 } 1144 1145 rx_size = roundup_pow_of_two(param->rx_pending); 1146 tx_size = roundup_pow_of_two(param->tx_pending); 1147 1148 if (rx_size == (priv->port_up ? priv->rx_ring[0]->actual_size : 1149 priv->rx_ring[0]->size) && 1150 tx_size == priv->tx_ring[TX][0]->size) 1151 return 0; 1152 1153 tmp = kzalloc(sizeof(*tmp), GFP_KERNEL); 1154 if (!tmp) 1155 return -ENOMEM; 1156 1157 mutex_lock(&mdev->state_lock); 1158 memcpy(&new_prof, priv->prof, sizeof(struct mlx4_en_port_profile)); 1159 new_prof.tx_ring_size = tx_size; 1160 new_prof.rx_ring_size = rx_size; 1161 err = mlx4_en_try_alloc_resources(priv, tmp, &new_prof, true); 1162 if (err) 1163 goto out; 1164 1165 if (priv->port_up) { 1166 port_up = 1; 1167 mlx4_en_stop_port(dev, 1); 1168 } 1169 1170 mlx4_en_safe_replace_resources(priv, tmp); 1171 1172 if (port_up) { 1173 err = mlx4_en_start_port(dev); 1174 if (err) 1175 en_err(priv, "Failed starting port\n"); 1176 } 1177 1178 err = mlx4_en_moderation_update(priv); 1179 out: 1180 kfree(tmp); 1181 mutex_unlock(&mdev->state_lock); 1182 return err; 1183 } 1184 1185 static void mlx4_en_get_ringparam(struct net_device *dev, 1186 struct ethtool_ringparam *param) 1187 { 1188 struct mlx4_en_priv *priv = netdev_priv(dev); 1189 1190 memset(param, 0, sizeof(*param)); 1191 param->rx_max_pending = MLX4_EN_MAX_RX_SIZE; 1192 param->tx_max_pending = MLX4_EN_MAX_TX_SIZE; 1193 param->rx_pending = priv->port_up ? 1194 priv->rx_ring[0]->actual_size : priv->rx_ring[0]->size; 1195 param->tx_pending = priv->tx_ring[TX][0]->size; 1196 } 1197 1198 static u32 mlx4_en_get_rxfh_indir_size(struct net_device *dev) 1199 { 1200 struct mlx4_en_priv *priv = netdev_priv(dev); 1201 1202 return rounddown_pow_of_two(priv->rx_ring_num); 1203 } 1204 1205 static u32 mlx4_en_get_rxfh_key_size(struct net_device *netdev) 1206 { 1207 return MLX4_EN_RSS_KEY_SIZE; 1208 } 1209 1210 static int mlx4_en_check_rxfh_func(struct net_device *dev, u8 hfunc) 1211 { 1212 struct mlx4_en_priv *priv = netdev_priv(dev); 1213 1214 /* check if requested function is supported by the device */ 1215 if (hfunc == ETH_RSS_HASH_TOP) { 1216 if (!(priv->mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_RSS_TOP)) 1217 return -EINVAL; 1218 if (!(dev->features & NETIF_F_RXHASH)) 1219 en_warn(priv, "Toeplitz hash function should be used in conjunction with RX hashing for optimal performance\n"); 1220 return 0; 1221 } else if (hfunc == ETH_RSS_HASH_XOR) { 1222 if (!(priv->mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_RSS_XOR)) 1223 return -EINVAL; 1224 if (dev->features & NETIF_F_RXHASH) 1225 en_warn(priv, "Enabling both XOR Hash function and RX Hashing can limit RPS functionality\n"); 1226 return 0; 1227 } 1228 1229 return -EINVAL; 1230 } 1231 1232 static int mlx4_en_get_rxfh(struct net_device *dev, u32 *ring_index, u8 *key, 1233 u8 *hfunc) 1234 { 1235 struct mlx4_en_priv *priv = netdev_priv(dev); 1236 u32 n = mlx4_en_get_rxfh_indir_size(dev); 1237 u32 i, rss_rings; 1238 int err = 0; 1239 1240 rss_rings = priv->prof->rss_rings ?: n; 1241 rss_rings = rounddown_pow_of_two(rss_rings); 1242 1243 for (i = 0; i < n; i++) { 1244 if (!ring_index) 1245 break; 1246 ring_index[i] = i % rss_rings; 1247 } 1248 if (key) 1249 memcpy(key, priv->rss_key, MLX4_EN_RSS_KEY_SIZE); 1250 if (hfunc) 1251 *hfunc = priv->rss_hash_fn; 1252 return err; 1253 } 1254 1255 static int mlx4_en_set_rxfh(struct net_device *dev, const u32 *ring_index, 1256 const u8 *key, const u8 hfunc) 1257 { 1258 struct mlx4_en_priv *priv = netdev_priv(dev); 1259 u32 n = mlx4_en_get_rxfh_indir_size(dev); 1260 struct mlx4_en_dev *mdev = priv->mdev; 1261 int port_up = 0; 1262 int err = 0; 1263 int i; 1264 int rss_rings = 0; 1265 1266 /* Calculate RSS table size and make sure flows are spread evenly 1267 * between rings 1268 */ 1269 for (i = 0; i < n; i++) { 1270 if (!ring_index) 1271 break; 1272 if (i > 0 && !ring_index[i] && !rss_rings) 1273 rss_rings = i; 1274 1275 if (ring_index[i] != (i % (rss_rings ?: n))) 1276 return -EINVAL; 1277 } 1278 1279 if (!rss_rings) 1280 rss_rings = n; 1281 1282 /* RSS table size must be an order of 2 */ 1283 if (!is_power_of_2(rss_rings)) 1284 return -EINVAL; 1285 1286 if (hfunc != ETH_RSS_HASH_NO_CHANGE) { 1287 err = mlx4_en_check_rxfh_func(dev, hfunc); 1288 if (err) 1289 return err; 1290 } 1291 1292 mutex_lock(&mdev->state_lock); 1293 if (priv->port_up) { 1294 port_up = 1; 1295 mlx4_en_stop_port(dev, 1); 1296 } 1297 1298 if (ring_index) 1299 priv->prof->rss_rings = rss_rings; 1300 if (key) 1301 memcpy(priv->rss_key, key, MLX4_EN_RSS_KEY_SIZE); 1302 if (hfunc != ETH_RSS_HASH_NO_CHANGE) 1303 priv->rss_hash_fn = hfunc; 1304 1305 if (port_up) { 1306 err = mlx4_en_start_port(dev); 1307 if (err) 1308 en_err(priv, "Failed starting port\n"); 1309 } 1310 1311 mutex_unlock(&mdev->state_lock); 1312 return err; 1313 } 1314 1315 #define all_zeros_or_all_ones(field) \ 1316 ((field) == 0 || (field) == (__force typeof(field))-1) 1317 1318 static int mlx4_en_validate_flow(struct net_device *dev, 1319 struct ethtool_rxnfc *cmd) 1320 { 1321 struct ethtool_usrip4_spec *l3_mask; 1322 struct ethtool_tcpip4_spec *l4_mask; 1323 struct ethhdr *eth_mask; 1324 1325 if (cmd->fs.location >= MAX_NUM_OF_FS_RULES) 1326 return -EINVAL; 1327 1328 if (cmd->fs.flow_type & FLOW_MAC_EXT) { 1329 /* dest mac mask must be ff:ff:ff:ff:ff:ff */ 1330 if (!is_broadcast_ether_addr(cmd->fs.m_ext.h_dest)) 1331 return -EINVAL; 1332 } 1333 1334 switch (cmd->fs.flow_type & ~(FLOW_EXT | FLOW_MAC_EXT)) { 1335 case TCP_V4_FLOW: 1336 case UDP_V4_FLOW: 1337 if (cmd->fs.m_u.tcp_ip4_spec.tos) 1338 return -EINVAL; 1339 l4_mask = &cmd->fs.m_u.tcp_ip4_spec; 1340 /* don't allow mask which isn't all 0 or 1 */ 1341 if (!all_zeros_or_all_ones(l4_mask->ip4src) || 1342 !all_zeros_or_all_ones(l4_mask->ip4dst) || 1343 !all_zeros_or_all_ones(l4_mask->psrc) || 1344 !all_zeros_or_all_ones(l4_mask->pdst)) 1345 return -EINVAL; 1346 break; 1347 case IP_USER_FLOW: 1348 l3_mask = &cmd->fs.m_u.usr_ip4_spec; 1349 if (l3_mask->l4_4_bytes || l3_mask->tos || l3_mask->proto || 1350 cmd->fs.h_u.usr_ip4_spec.ip_ver != ETH_RX_NFC_IP4 || 1351 (!l3_mask->ip4src && !l3_mask->ip4dst) || 1352 !all_zeros_or_all_ones(l3_mask->ip4src) || 1353 !all_zeros_or_all_ones(l3_mask->ip4dst)) 1354 return -EINVAL; 1355 break; 1356 case ETHER_FLOW: 1357 eth_mask = &cmd->fs.m_u.ether_spec; 1358 /* source mac mask must not be set */ 1359 if (!is_zero_ether_addr(eth_mask->h_source)) 1360 return -EINVAL; 1361 1362 /* dest mac mask must be ff:ff:ff:ff:ff:ff */ 1363 if (!is_broadcast_ether_addr(eth_mask->h_dest)) 1364 return -EINVAL; 1365 1366 if (!all_zeros_or_all_ones(eth_mask->h_proto)) 1367 return -EINVAL; 1368 break; 1369 default: 1370 return -EINVAL; 1371 } 1372 1373 if ((cmd->fs.flow_type & FLOW_EXT)) { 1374 if (cmd->fs.m_ext.vlan_etype || 1375 !((cmd->fs.m_ext.vlan_tci & cpu_to_be16(VLAN_VID_MASK)) == 1376 0 || 1377 (cmd->fs.m_ext.vlan_tci & cpu_to_be16(VLAN_VID_MASK)) == 1378 cpu_to_be16(VLAN_VID_MASK))) 1379 return -EINVAL; 1380 1381 if (cmd->fs.m_ext.vlan_tci) { 1382 if (be16_to_cpu(cmd->fs.h_ext.vlan_tci) >= VLAN_N_VID) 1383 return -EINVAL; 1384 1385 } 1386 } 1387 1388 return 0; 1389 } 1390 1391 static int mlx4_en_ethtool_add_mac_rule(struct ethtool_rxnfc *cmd, 1392 struct list_head *rule_list_h, 1393 struct mlx4_spec_list *spec_l2, 1394 unsigned char *mac) 1395 { 1396 int err = 0; 1397 __be64 mac_msk = cpu_to_be64(MLX4_MAC_MASK << 16); 1398 1399 spec_l2->id = MLX4_NET_TRANS_RULE_ID_ETH; 1400 memcpy(spec_l2->eth.dst_mac_msk, &mac_msk, ETH_ALEN); 1401 memcpy(spec_l2->eth.dst_mac, mac, ETH_ALEN); 1402 1403 if ((cmd->fs.flow_type & FLOW_EXT) && 1404 (cmd->fs.m_ext.vlan_tci & cpu_to_be16(VLAN_VID_MASK))) { 1405 spec_l2->eth.vlan_id = cmd->fs.h_ext.vlan_tci; 1406 spec_l2->eth.vlan_id_msk = cpu_to_be16(VLAN_VID_MASK); 1407 } 1408 1409 list_add_tail(&spec_l2->list, rule_list_h); 1410 1411 return err; 1412 } 1413 1414 static int mlx4_en_ethtool_add_mac_rule_by_ipv4(struct mlx4_en_priv *priv, 1415 struct ethtool_rxnfc *cmd, 1416 struct list_head *rule_list_h, 1417 struct mlx4_spec_list *spec_l2, 1418 __be32 ipv4_dst) 1419 { 1420 #ifdef CONFIG_INET 1421 unsigned char mac[ETH_ALEN]; 1422 1423 if (!ipv4_is_multicast(ipv4_dst)) { 1424 if (cmd->fs.flow_type & FLOW_MAC_EXT) 1425 memcpy(&mac, cmd->fs.h_ext.h_dest, ETH_ALEN); 1426 else 1427 memcpy(&mac, priv->dev->dev_addr, ETH_ALEN); 1428 } else { 1429 ip_eth_mc_map(ipv4_dst, mac); 1430 } 1431 1432 return mlx4_en_ethtool_add_mac_rule(cmd, rule_list_h, spec_l2, &mac[0]); 1433 #else 1434 return -EINVAL; 1435 #endif 1436 } 1437 1438 static int add_ip_rule(struct mlx4_en_priv *priv, 1439 struct ethtool_rxnfc *cmd, 1440 struct list_head *list_h) 1441 { 1442 int err; 1443 struct mlx4_spec_list *spec_l2 = NULL; 1444 struct mlx4_spec_list *spec_l3 = NULL; 1445 struct ethtool_usrip4_spec *l3_mask = &cmd->fs.m_u.usr_ip4_spec; 1446 1447 spec_l3 = kzalloc(sizeof(*spec_l3), GFP_KERNEL); 1448 spec_l2 = kzalloc(sizeof(*spec_l2), GFP_KERNEL); 1449 if (!spec_l2 || !spec_l3) { 1450 err = -ENOMEM; 1451 goto free_spec; 1452 } 1453 1454 err = mlx4_en_ethtool_add_mac_rule_by_ipv4(priv, cmd, list_h, spec_l2, 1455 cmd->fs.h_u. 1456 usr_ip4_spec.ip4dst); 1457 if (err) 1458 goto free_spec; 1459 spec_l3->id = MLX4_NET_TRANS_RULE_ID_IPV4; 1460 spec_l3->ipv4.src_ip = cmd->fs.h_u.usr_ip4_spec.ip4src; 1461 if (l3_mask->ip4src) 1462 spec_l3->ipv4.src_ip_msk = EN_ETHTOOL_WORD_MASK; 1463 spec_l3->ipv4.dst_ip = cmd->fs.h_u.usr_ip4_spec.ip4dst; 1464 if (l3_mask->ip4dst) 1465 spec_l3->ipv4.dst_ip_msk = EN_ETHTOOL_WORD_MASK; 1466 list_add_tail(&spec_l3->list, list_h); 1467 1468 return 0; 1469 1470 free_spec: 1471 kfree(spec_l2); 1472 kfree(spec_l3); 1473 return err; 1474 } 1475 1476 static int add_tcp_udp_rule(struct mlx4_en_priv *priv, 1477 struct ethtool_rxnfc *cmd, 1478 struct list_head *list_h, int proto) 1479 { 1480 int err; 1481 struct mlx4_spec_list *spec_l2 = NULL; 1482 struct mlx4_spec_list *spec_l3 = NULL; 1483 struct mlx4_spec_list *spec_l4 = NULL; 1484 struct ethtool_tcpip4_spec *l4_mask = &cmd->fs.m_u.tcp_ip4_spec; 1485 1486 spec_l2 = kzalloc(sizeof(*spec_l2), GFP_KERNEL); 1487 spec_l3 = kzalloc(sizeof(*spec_l3), GFP_KERNEL); 1488 spec_l4 = kzalloc(sizeof(*spec_l4), GFP_KERNEL); 1489 if (!spec_l2 || !spec_l3 || !spec_l4) { 1490 err = -ENOMEM; 1491 goto free_spec; 1492 } 1493 1494 spec_l3->id = MLX4_NET_TRANS_RULE_ID_IPV4; 1495 1496 if (proto == TCP_V4_FLOW) { 1497 err = mlx4_en_ethtool_add_mac_rule_by_ipv4(priv, cmd, list_h, 1498 spec_l2, 1499 cmd->fs.h_u. 1500 tcp_ip4_spec.ip4dst); 1501 if (err) 1502 goto free_spec; 1503 spec_l4->id = MLX4_NET_TRANS_RULE_ID_TCP; 1504 spec_l3->ipv4.src_ip = cmd->fs.h_u.tcp_ip4_spec.ip4src; 1505 spec_l3->ipv4.dst_ip = cmd->fs.h_u.tcp_ip4_spec.ip4dst; 1506 spec_l4->tcp_udp.src_port = cmd->fs.h_u.tcp_ip4_spec.psrc; 1507 spec_l4->tcp_udp.dst_port = cmd->fs.h_u.tcp_ip4_spec.pdst; 1508 } else { 1509 err = mlx4_en_ethtool_add_mac_rule_by_ipv4(priv, cmd, list_h, 1510 spec_l2, 1511 cmd->fs.h_u. 1512 udp_ip4_spec.ip4dst); 1513 if (err) 1514 goto free_spec; 1515 spec_l4->id = MLX4_NET_TRANS_RULE_ID_UDP; 1516 spec_l3->ipv4.src_ip = cmd->fs.h_u.udp_ip4_spec.ip4src; 1517 spec_l3->ipv4.dst_ip = cmd->fs.h_u.udp_ip4_spec.ip4dst; 1518 spec_l4->tcp_udp.src_port = cmd->fs.h_u.udp_ip4_spec.psrc; 1519 spec_l4->tcp_udp.dst_port = cmd->fs.h_u.udp_ip4_spec.pdst; 1520 } 1521 1522 if (l4_mask->ip4src) 1523 spec_l3->ipv4.src_ip_msk = EN_ETHTOOL_WORD_MASK; 1524 if (l4_mask->ip4dst) 1525 spec_l3->ipv4.dst_ip_msk = EN_ETHTOOL_WORD_MASK; 1526 1527 if (l4_mask->psrc) 1528 spec_l4->tcp_udp.src_port_msk = EN_ETHTOOL_SHORT_MASK; 1529 if (l4_mask->pdst) 1530 spec_l4->tcp_udp.dst_port_msk = EN_ETHTOOL_SHORT_MASK; 1531 1532 list_add_tail(&spec_l3->list, list_h); 1533 list_add_tail(&spec_l4->list, list_h); 1534 1535 return 0; 1536 1537 free_spec: 1538 kfree(spec_l2); 1539 kfree(spec_l3); 1540 kfree(spec_l4); 1541 return err; 1542 } 1543 1544 static int mlx4_en_ethtool_to_net_trans_rule(struct net_device *dev, 1545 struct ethtool_rxnfc *cmd, 1546 struct list_head *rule_list_h) 1547 { 1548 int err; 1549 struct ethhdr *eth_spec; 1550 struct mlx4_spec_list *spec_l2; 1551 struct mlx4_en_priv *priv = netdev_priv(dev); 1552 1553 err = mlx4_en_validate_flow(dev, cmd); 1554 if (err) 1555 return err; 1556 1557 switch (cmd->fs.flow_type & ~(FLOW_EXT | FLOW_MAC_EXT)) { 1558 case ETHER_FLOW: 1559 spec_l2 = kzalloc(sizeof(*spec_l2), GFP_KERNEL); 1560 if (!spec_l2) 1561 return -ENOMEM; 1562 1563 eth_spec = &cmd->fs.h_u.ether_spec; 1564 mlx4_en_ethtool_add_mac_rule(cmd, rule_list_h, spec_l2, 1565 ð_spec->h_dest[0]); 1566 spec_l2->eth.ether_type = eth_spec->h_proto; 1567 if (eth_spec->h_proto) 1568 spec_l2->eth.ether_type_enable = 1; 1569 break; 1570 case IP_USER_FLOW: 1571 err = add_ip_rule(priv, cmd, rule_list_h); 1572 break; 1573 case TCP_V4_FLOW: 1574 err = add_tcp_udp_rule(priv, cmd, rule_list_h, TCP_V4_FLOW); 1575 break; 1576 case UDP_V4_FLOW: 1577 err = add_tcp_udp_rule(priv, cmd, rule_list_h, UDP_V4_FLOW); 1578 break; 1579 } 1580 1581 return err; 1582 } 1583 1584 static int mlx4_en_flow_replace(struct net_device *dev, 1585 struct ethtool_rxnfc *cmd) 1586 { 1587 int err; 1588 struct mlx4_en_priv *priv = netdev_priv(dev); 1589 struct ethtool_flow_id *loc_rule; 1590 struct mlx4_spec_list *spec, *tmp_spec; 1591 u32 qpn; 1592 u64 reg_id; 1593 1594 struct mlx4_net_trans_rule rule = { 1595 .queue_mode = MLX4_NET_TRANS_Q_FIFO, 1596 .exclusive = 0, 1597 .allow_loopback = 1, 1598 .promisc_mode = MLX4_FS_REGULAR, 1599 }; 1600 1601 rule.port = priv->port; 1602 rule.priority = MLX4_DOMAIN_ETHTOOL | cmd->fs.location; 1603 INIT_LIST_HEAD(&rule.list); 1604 1605 /* Allow direct QP attaches if the EN_ETHTOOL_QP_ATTACH flag is set */ 1606 if (cmd->fs.ring_cookie == RX_CLS_FLOW_DISC) 1607 qpn = priv->drop_qp.qpn; 1608 else if (cmd->fs.ring_cookie & EN_ETHTOOL_QP_ATTACH) { 1609 qpn = cmd->fs.ring_cookie & (EN_ETHTOOL_QP_ATTACH - 1); 1610 } else { 1611 if (cmd->fs.ring_cookie >= priv->rx_ring_num) { 1612 en_warn(priv, "rxnfc: RX ring (%llu) doesn't exist\n", 1613 cmd->fs.ring_cookie); 1614 return -EINVAL; 1615 } 1616 qpn = priv->rss_map.qps[cmd->fs.ring_cookie].qpn; 1617 if (!qpn) { 1618 en_warn(priv, "rxnfc: RX ring (%llu) is inactive\n", 1619 cmd->fs.ring_cookie); 1620 return -EINVAL; 1621 } 1622 } 1623 rule.qpn = qpn; 1624 err = mlx4_en_ethtool_to_net_trans_rule(dev, cmd, &rule.list); 1625 if (err) 1626 goto out_free_list; 1627 1628 loc_rule = &priv->ethtool_rules[cmd->fs.location]; 1629 if (loc_rule->id) { 1630 err = mlx4_flow_detach(priv->mdev->dev, loc_rule->id); 1631 if (err) { 1632 en_err(priv, "Fail to detach network rule at location %d. registration id = %llx\n", 1633 cmd->fs.location, loc_rule->id); 1634 goto out_free_list; 1635 } 1636 loc_rule->id = 0; 1637 memset(&loc_rule->flow_spec, 0, 1638 sizeof(struct ethtool_rx_flow_spec)); 1639 list_del(&loc_rule->list); 1640 } 1641 err = mlx4_flow_attach(priv->mdev->dev, &rule, ®_id); 1642 if (err) { 1643 en_err(priv, "Fail to attach network rule at location %d\n", 1644 cmd->fs.location); 1645 goto out_free_list; 1646 } 1647 loc_rule->id = reg_id; 1648 memcpy(&loc_rule->flow_spec, &cmd->fs, 1649 sizeof(struct ethtool_rx_flow_spec)); 1650 list_add_tail(&loc_rule->list, &priv->ethtool_list); 1651 1652 out_free_list: 1653 list_for_each_entry_safe(spec, tmp_spec, &rule.list, list) { 1654 list_del(&spec->list); 1655 kfree(spec); 1656 } 1657 return err; 1658 } 1659 1660 static int mlx4_en_flow_detach(struct net_device *dev, 1661 struct ethtool_rxnfc *cmd) 1662 { 1663 int err = 0; 1664 struct ethtool_flow_id *rule; 1665 struct mlx4_en_priv *priv = netdev_priv(dev); 1666 1667 if (cmd->fs.location >= MAX_NUM_OF_FS_RULES) 1668 return -EINVAL; 1669 1670 rule = &priv->ethtool_rules[cmd->fs.location]; 1671 if (!rule->id) { 1672 err = -ENOENT; 1673 goto out; 1674 } 1675 1676 err = mlx4_flow_detach(priv->mdev->dev, rule->id); 1677 if (err) { 1678 en_err(priv, "Fail to detach network rule at location %d. registration id = 0x%llx\n", 1679 cmd->fs.location, rule->id); 1680 goto out; 1681 } 1682 rule->id = 0; 1683 memset(&rule->flow_spec, 0, sizeof(struct ethtool_rx_flow_spec)); 1684 list_del(&rule->list); 1685 out: 1686 return err; 1687 1688 } 1689 1690 static int mlx4_en_get_flow(struct net_device *dev, struct ethtool_rxnfc *cmd, 1691 int loc) 1692 { 1693 int err = 0; 1694 struct ethtool_flow_id *rule; 1695 struct mlx4_en_priv *priv = netdev_priv(dev); 1696 1697 if (loc < 0 || loc >= MAX_NUM_OF_FS_RULES) 1698 return -EINVAL; 1699 1700 rule = &priv->ethtool_rules[loc]; 1701 if (rule->id) 1702 memcpy(&cmd->fs, &rule->flow_spec, 1703 sizeof(struct ethtool_rx_flow_spec)); 1704 else 1705 err = -ENOENT; 1706 1707 return err; 1708 } 1709 1710 static int mlx4_en_get_num_flows(struct mlx4_en_priv *priv) 1711 { 1712 1713 int i, res = 0; 1714 for (i = 0; i < MAX_NUM_OF_FS_RULES; i++) { 1715 if (priv->ethtool_rules[i].id) 1716 res++; 1717 } 1718 return res; 1719 1720 } 1721 1722 static int mlx4_en_get_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd, 1723 u32 *rule_locs) 1724 { 1725 struct mlx4_en_priv *priv = netdev_priv(dev); 1726 struct mlx4_en_dev *mdev = priv->mdev; 1727 int err = 0; 1728 int i = 0, priority = 0; 1729 1730 if ((cmd->cmd == ETHTOOL_GRXCLSRLCNT || 1731 cmd->cmd == ETHTOOL_GRXCLSRULE || 1732 cmd->cmd == ETHTOOL_GRXCLSRLALL) && 1733 (mdev->dev->caps.steering_mode != 1734 MLX4_STEERING_MODE_DEVICE_MANAGED || !priv->port_up)) 1735 return -EINVAL; 1736 1737 switch (cmd->cmd) { 1738 case ETHTOOL_GRXRINGS: 1739 cmd->data = priv->rx_ring_num; 1740 break; 1741 case ETHTOOL_GRXCLSRLCNT: 1742 cmd->rule_cnt = mlx4_en_get_num_flows(priv); 1743 break; 1744 case ETHTOOL_GRXCLSRULE: 1745 err = mlx4_en_get_flow(dev, cmd, cmd->fs.location); 1746 break; 1747 case ETHTOOL_GRXCLSRLALL: 1748 while ((!err || err == -ENOENT) && priority < cmd->rule_cnt) { 1749 err = mlx4_en_get_flow(dev, cmd, i); 1750 if (!err) 1751 rule_locs[priority++] = i; 1752 i++; 1753 } 1754 err = 0; 1755 break; 1756 default: 1757 err = -EOPNOTSUPP; 1758 break; 1759 } 1760 1761 return err; 1762 } 1763 1764 static int mlx4_en_set_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd) 1765 { 1766 int err = 0; 1767 struct mlx4_en_priv *priv = netdev_priv(dev); 1768 struct mlx4_en_dev *mdev = priv->mdev; 1769 1770 if (mdev->dev->caps.steering_mode != 1771 MLX4_STEERING_MODE_DEVICE_MANAGED || !priv->port_up) 1772 return -EINVAL; 1773 1774 switch (cmd->cmd) { 1775 case ETHTOOL_SRXCLSRLINS: 1776 err = mlx4_en_flow_replace(dev, cmd); 1777 break; 1778 case ETHTOOL_SRXCLSRLDEL: 1779 err = mlx4_en_flow_detach(dev, cmd); 1780 break; 1781 default: 1782 en_warn(priv, "Unsupported ethtool command. (%d)\n", cmd->cmd); 1783 return -EINVAL; 1784 } 1785 1786 return err; 1787 } 1788 1789 static int mlx4_en_get_max_num_rx_rings(struct net_device *dev) 1790 { 1791 return min_t(int, num_online_cpus(), MAX_RX_RINGS); 1792 } 1793 1794 static void mlx4_en_get_channels(struct net_device *dev, 1795 struct ethtool_channels *channel) 1796 { 1797 struct mlx4_en_priv *priv = netdev_priv(dev); 1798 1799 channel->max_rx = mlx4_en_get_max_num_rx_rings(dev); 1800 channel->max_tx = priv->mdev->profile.max_num_tx_rings_p_up; 1801 1802 channel->rx_count = priv->rx_ring_num; 1803 channel->tx_count = priv->tx_ring_num[TX] / 1804 priv->prof->num_up; 1805 } 1806 1807 static int mlx4_en_set_channels(struct net_device *dev, 1808 struct ethtool_channels *channel) 1809 { 1810 struct mlx4_en_priv *priv = netdev_priv(dev); 1811 struct mlx4_en_dev *mdev = priv->mdev; 1812 struct mlx4_en_port_profile new_prof; 1813 struct mlx4_en_priv *tmp; 1814 int port_up = 0; 1815 int xdp_count; 1816 int err = 0; 1817 u8 up; 1818 1819 if (!channel->tx_count || !channel->rx_count) 1820 return -EINVAL; 1821 1822 tmp = kzalloc(sizeof(*tmp), GFP_KERNEL); 1823 if (!tmp) 1824 return -ENOMEM; 1825 1826 mutex_lock(&mdev->state_lock); 1827 xdp_count = priv->tx_ring_num[TX_XDP] ? channel->rx_count : 0; 1828 if (channel->tx_count * priv->prof->num_up + xdp_count > 1829 priv->mdev->profile.max_num_tx_rings_p_up * priv->prof->num_up) { 1830 err = -EINVAL; 1831 en_err(priv, 1832 "Total number of TX and XDP rings (%d) exceeds the maximum supported (%d)\n", 1833 channel->tx_count * priv->prof->num_up + xdp_count, 1834 MAX_TX_RINGS); 1835 goto out; 1836 } 1837 1838 memcpy(&new_prof, priv->prof, sizeof(struct mlx4_en_port_profile)); 1839 new_prof.num_tx_rings_p_up = channel->tx_count; 1840 new_prof.tx_ring_num[TX] = channel->tx_count * priv->prof->num_up; 1841 new_prof.tx_ring_num[TX_XDP] = xdp_count; 1842 new_prof.rx_ring_num = channel->rx_count; 1843 1844 err = mlx4_en_try_alloc_resources(priv, tmp, &new_prof, true); 1845 if (err) 1846 goto out; 1847 1848 if (priv->port_up) { 1849 port_up = 1; 1850 mlx4_en_stop_port(dev, 1); 1851 } 1852 1853 mlx4_en_safe_replace_resources(priv, tmp); 1854 1855 netif_set_real_num_rx_queues(dev, priv->rx_ring_num); 1856 1857 up = (priv->prof->num_up == MLX4_EN_NUM_UP_LOW) ? 1858 0 : priv->prof->num_up; 1859 mlx4_en_setup_tc(dev, up); 1860 1861 en_warn(priv, "Using %d TX rings\n", priv->tx_ring_num[TX]); 1862 en_warn(priv, "Using %d RX rings\n", priv->rx_ring_num); 1863 1864 if (port_up) { 1865 err = mlx4_en_start_port(dev); 1866 if (err) 1867 en_err(priv, "Failed starting port\n"); 1868 } 1869 1870 err = mlx4_en_moderation_update(priv); 1871 out: 1872 mutex_unlock(&mdev->state_lock); 1873 kfree(tmp); 1874 return err; 1875 } 1876 1877 static int mlx4_en_get_ts_info(struct net_device *dev, 1878 struct ethtool_ts_info *info) 1879 { 1880 struct mlx4_en_priv *priv = netdev_priv(dev); 1881 struct mlx4_en_dev *mdev = priv->mdev; 1882 int ret; 1883 1884 ret = ethtool_op_get_ts_info(dev, info); 1885 if (ret) 1886 return ret; 1887 1888 if (mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_TS) { 1889 info->so_timestamping |= 1890 SOF_TIMESTAMPING_TX_HARDWARE | 1891 SOF_TIMESTAMPING_RX_HARDWARE | 1892 SOF_TIMESTAMPING_RAW_HARDWARE; 1893 1894 info->tx_types = 1895 (1 << HWTSTAMP_TX_OFF) | 1896 (1 << HWTSTAMP_TX_ON); 1897 1898 info->rx_filters = 1899 (1 << HWTSTAMP_FILTER_NONE) | 1900 (1 << HWTSTAMP_FILTER_ALL); 1901 1902 if (mdev->ptp_clock) 1903 info->phc_index = ptp_clock_index(mdev->ptp_clock); 1904 } 1905 1906 return ret; 1907 } 1908 1909 static int mlx4_en_set_priv_flags(struct net_device *dev, u32 flags) 1910 { 1911 struct mlx4_en_priv *priv = netdev_priv(dev); 1912 struct mlx4_en_dev *mdev = priv->mdev; 1913 bool bf_enabled_new = !!(flags & MLX4_EN_PRIV_FLAGS_BLUEFLAME); 1914 bool bf_enabled_old = !!(priv->pflags & MLX4_EN_PRIV_FLAGS_BLUEFLAME); 1915 bool phv_enabled_new = !!(flags & MLX4_EN_PRIV_FLAGS_PHV); 1916 bool phv_enabled_old = !!(priv->pflags & MLX4_EN_PRIV_FLAGS_PHV); 1917 int i; 1918 int ret = 0; 1919 1920 if (bf_enabled_new != bf_enabled_old) { 1921 int t; 1922 1923 if (bf_enabled_new) { 1924 bool bf_supported = true; 1925 1926 for (t = 0; t < MLX4_EN_NUM_TX_TYPES; t++) 1927 for (i = 0; i < priv->tx_ring_num[t]; i++) 1928 bf_supported &= 1929 priv->tx_ring[t][i]->bf_alloced; 1930 1931 if (!bf_supported) { 1932 en_err(priv, "BlueFlame is not supported\n"); 1933 return -EINVAL; 1934 } 1935 1936 priv->pflags |= MLX4_EN_PRIV_FLAGS_BLUEFLAME; 1937 } else { 1938 priv->pflags &= ~MLX4_EN_PRIV_FLAGS_BLUEFLAME; 1939 } 1940 1941 for (t = 0; t < MLX4_EN_NUM_TX_TYPES; t++) 1942 for (i = 0; i < priv->tx_ring_num[t]; i++) 1943 priv->tx_ring[t][i]->bf_enabled = 1944 bf_enabled_new; 1945 1946 en_info(priv, "BlueFlame %s\n", 1947 bf_enabled_new ? "Enabled" : "Disabled"); 1948 } 1949 1950 if (phv_enabled_new != phv_enabled_old) { 1951 ret = set_phv_bit(mdev->dev, priv->port, (int)phv_enabled_new); 1952 if (ret) 1953 return ret; 1954 else if (phv_enabled_new) 1955 priv->pflags |= MLX4_EN_PRIV_FLAGS_PHV; 1956 else 1957 priv->pflags &= ~MLX4_EN_PRIV_FLAGS_PHV; 1958 en_info(priv, "PHV bit %s\n", 1959 phv_enabled_new ? "Enabled" : "Disabled"); 1960 } 1961 return 0; 1962 } 1963 1964 static u32 mlx4_en_get_priv_flags(struct net_device *dev) 1965 { 1966 struct mlx4_en_priv *priv = netdev_priv(dev); 1967 1968 return priv->pflags; 1969 } 1970 1971 static int mlx4_en_get_tunable(struct net_device *dev, 1972 const struct ethtool_tunable *tuna, 1973 void *data) 1974 { 1975 const struct mlx4_en_priv *priv = netdev_priv(dev); 1976 int ret = 0; 1977 1978 switch (tuna->id) { 1979 case ETHTOOL_TX_COPYBREAK: 1980 *(u32 *)data = priv->prof->inline_thold; 1981 break; 1982 default: 1983 ret = -EINVAL; 1984 break; 1985 } 1986 1987 return ret; 1988 } 1989 1990 static int mlx4_en_set_tunable(struct net_device *dev, 1991 const struct ethtool_tunable *tuna, 1992 const void *data) 1993 { 1994 struct mlx4_en_priv *priv = netdev_priv(dev); 1995 int val, ret = 0; 1996 1997 switch (tuna->id) { 1998 case ETHTOOL_TX_COPYBREAK: 1999 val = *(u32 *)data; 2000 if (val < MIN_PKT_LEN || val > MAX_INLINE) 2001 ret = -EINVAL; 2002 else 2003 priv->prof->inline_thold = val; 2004 break; 2005 default: 2006 ret = -EINVAL; 2007 break; 2008 } 2009 2010 return ret; 2011 } 2012 2013 #define MLX4_EEPROM_PAGE_LEN 256 2014 2015 static int mlx4_en_get_module_info(struct net_device *dev, 2016 struct ethtool_modinfo *modinfo) 2017 { 2018 struct mlx4_en_priv *priv = netdev_priv(dev); 2019 struct mlx4_en_dev *mdev = priv->mdev; 2020 int ret; 2021 u8 data[4]; 2022 2023 /* Read first 2 bytes to get Module & REV ID */ 2024 ret = mlx4_get_module_info(mdev->dev, priv->port, 2025 0/*offset*/, 2/*size*/, data); 2026 if (ret < 2) 2027 return -EIO; 2028 2029 switch (data[0] /* identifier */) { 2030 case MLX4_MODULE_ID_QSFP: 2031 modinfo->type = ETH_MODULE_SFF_8436; 2032 modinfo->eeprom_len = ETH_MODULE_SFF_8436_LEN; 2033 break; 2034 case MLX4_MODULE_ID_QSFP_PLUS: 2035 if (data[1] >= 0x3) { /* revision id */ 2036 modinfo->type = ETH_MODULE_SFF_8636; 2037 modinfo->eeprom_len = ETH_MODULE_SFF_8636_LEN; 2038 } else { 2039 modinfo->type = ETH_MODULE_SFF_8436; 2040 modinfo->eeprom_len = ETH_MODULE_SFF_8436_LEN; 2041 } 2042 break; 2043 case MLX4_MODULE_ID_QSFP28: 2044 modinfo->type = ETH_MODULE_SFF_8636; 2045 modinfo->eeprom_len = ETH_MODULE_SFF_8636_LEN; 2046 break; 2047 case MLX4_MODULE_ID_SFP: 2048 modinfo->type = ETH_MODULE_SFF_8472; 2049 modinfo->eeprom_len = MLX4_EEPROM_PAGE_LEN; 2050 break; 2051 default: 2052 return -EINVAL; 2053 } 2054 2055 return 0; 2056 } 2057 2058 static int mlx4_en_get_module_eeprom(struct net_device *dev, 2059 struct ethtool_eeprom *ee, 2060 u8 *data) 2061 { 2062 struct mlx4_en_priv *priv = netdev_priv(dev); 2063 struct mlx4_en_dev *mdev = priv->mdev; 2064 int offset = ee->offset; 2065 int i = 0, ret; 2066 2067 if (ee->len == 0) 2068 return -EINVAL; 2069 2070 memset(data, 0, ee->len); 2071 2072 while (i < ee->len) { 2073 en_dbg(DRV, priv, 2074 "mlx4_get_module_info i(%d) offset(%d) len(%d)\n", 2075 i, offset, ee->len - i); 2076 2077 ret = mlx4_get_module_info(mdev->dev, priv->port, 2078 offset, ee->len - i, data + i); 2079 2080 if (!ret) /* Done reading */ 2081 return 0; 2082 2083 if (ret < 0) { 2084 en_err(priv, 2085 "mlx4_get_module_info i(%d) offset(%d) bytes_to_read(%d) - FAILED (0x%x)\n", 2086 i, offset, ee->len - i, ret); 2087 return 0; 2088 } 2089 2090 i += ret; 2091 offset += ret; 2092 } 2093 return 0; 2094 } 2095 2096 static int mlx4_en_set_phys_id(struct net_device *dev, 2097 enum ethtool_phys_id_state state) 2098 { 2099 int err; 2100 u16 beacon_duration; 2101 struct mlx4_en_priv *priv = netdev_priv(dev); 2102 struct mlx4_en_dev *mdev = priv->mdev; 2103 2104 if (!(mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_PORT_BEACON)) 2105 return -EOPNOTSUPP; 2106 2107 switch (state) { 2108 case ETHTOOL_ID_ACTIVE: 2109 beacon_duration = PORT_BEACON_MAX_LIMIT; 2110 break; 2111 case ETHTOOL_ID_INACTIVE: 2112 beacon_duration = 0; 2113 break; 2114 default: 2115 return -EOPNOTSUPP; 2116 } 2117 2118 err = mlx4_SET_PORT_BEACON(mdev->dev, priv->port, beacon_duration); 2119 return err; 2120 } 2121 2122 const struct ethtool_ops mlx4_en_ethtool_ops = { 2123 .get_drvinfo = mlx4_en_get_drvinfo, 2124 .get_link_ksettings = mlx4_en_get_link_ksettings, 2125 .set_link_ksettings = mlx4_en_set_link_ksettings, 2126 .get_link = ethtool_op_get_link, 2127 .get_strings = mlx4_en_get_strings, 2128 .get_sset_count = mlx4_en_get_sset_count, 2129 .get_ethtool_stats = mlx4_en_get_ethtool_stats, 2130 .self_test = mlx4_en_self_test, 2131 .set_phys_id = mlx4_en_set_phys_id, 2132 .get_wol = mlx4_en_get_wol, 2133 .set_wol = mlx4_en_set_wol, 2134 .get_msglevel = mlx4_en_get_msglevel, 2135 .set_msglevel = mlx4_en_set_msglevel, 2136 .get_coalesce = mlx4_en_get_coalesce, 2137 .set_coalesce = mlx4_en_set_coalesce, 2138 .get_pauseparam = mlx4_en_get_pauseparam, 2139 .set_pauseparam = mlx4_en_set_pauseparam, 2140 .get_ringparam = mlx4_en_get_ringparam, 2141 .set_ringparam = mlx4_en_set_ringparam, 2142 .get_rxnfc = mlx4_en_get_rxnfc, 2143 .set_rxnfc = mlx4_en_set_rxnfc, 2144 .get_rxfh_indir_size = mlx4_en_get_rxfh_indir_size, 2145 .get_rxfh_key_size = mlx4_en_get_rxfh_key_size, 2146 .get_rxfh = mlx4_en_get_rxfh, 2147 .set_rxfh = mlx4_en_set_rxfh, 2148 .get_channels = mlx4_en_get_channels, 2149 .set_channels = mlx4_en_set_channels, 2150 .get_ts_info = mlx4_en_get_ts_info, 2151 .set_priv_flags = mlx4_en_set_priv_flags, 2152 .get_priv_flags = mlx4_en_get_priv_flags, 2153 .get_tunable = mlx4_en_get_tunable, 2154 .set_tunable = mlx4_en_set_tunable, 2155 .get_module_info = mlx4_en_get_module_info, 2156 .get_module_eeprom = mlx4_en_get_module_eeprom 2157 }; 2158 2159 2160 2161 2162 2163