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 " (" DRV_RELDATE ")", 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_failed", 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 }; 203 204 static const char mlx4_en_test_names[][ETH_GSTRING_LEN]= { 205 "Interrupt Test", 206 "Link Test", 207 "Speed Test", 208 "Register Test", 209 "Loopback Test", 210 }; 211 212 static u32 mlx4_en_get_msglevel(struct net_device *dev) 213 { 214 return ((struct mlx4_en_priv *) netdev_priv(dev))->msg_enable; 215 } 216 217 static void mlx4_en_set_msglevel(struct net_device *dev, u32 val) 218 { 219 ((struct mlx4_en_priv *) netdev_priv(dev))->msg_enable = val; 220 } 221 222 static void mlx4_en_get_wol(struct net_device *netdev, 223 struct ethtool_wolinfo *wol) 224 { 225 struct mlx4_en_priv *priv = netdev_priv(netdev); 226 int err = 0; 227 u64 config = 0; 228 u64 mask; 229 230 if ((priv->port < 1) || (priv->port > 2)) { 231 en_err(priv, "Failed to get WoL information\n"); 232 return; 233 } 234 235 mask = (priv->port == 1) ? MLX4_DEV_CAP_FLAG_WOL_PORT1 : 236 MLX4_DEV_CAP_FLAG_WOL_PORT2; 237 238 if (!(priv->mdev->dev->caps.flags & mask)) { 239 wol->supported = 0; 240 wol->wolopts = 0; 241 return; 242 } 243 244 err = mlx4_wol_read(priv->mdev->dev, &config, priv->port); 245 if (err) { 246 en_err(priv, "Failed to get WoL information\n"); 247 return; 248 } 249 250 if (config & MLX4_EN_WOL_MAGIC) 251 wol->supported = WAKE_MAGIC; 252 else 253 wol->supported = 0; 254 255 if (config & MLX4_EN_WOL_ENABLED) 256 wol->wolopts = WAKE_MAGIC; 257 else 258 wol->wolopts = 0; 259 } 260 261 static int mlx4_en_set_wol(struct net_device *netdev, 262 struct ethtool_wolinfo *wol) 263 { 264 struct mlx4_en_priv *priv = netdev_priv(netdev); 265 u64 config = 0; 266 int err = 0; 267 u64 mask; 268 269 if ((priv->port < 1) || (priv->port > 2)) 270 return -EOPNOTSUPP; 271 272 mask = (priv->port == 1) ? MLX4_DEV_CAP_FLAG_WOL_PORT1 : 273 MLX4_DEV_CAP_FLAG_WOL_PORT2; 274 275 if (!(priv->mdev->dev->caps.flags & mask)) 276 return -EOPNOTSUPP; 277 278 if (wol->supported & ~WAKE_MAGIC) 279 return -EINVAL; 280 281 err = mlx4_wol_read(priv->mdev->dev, &config, priv->port); 282 if (err) { 283 en_err(priv, "Failed to get WoL info, unable to modify\n"); 284 return err; 285 } 286 287 if (wol->wolopts & WAKE_MAGIC) { 288 config |= MLX4_EN_WOL_DO_MODIFY | MLX4_EN_WOL_ENABLED | 289 MLX4_EN_WOL_MAGIC; 290 } else { 291 config &= ~(MLX4_EN_WOL_ENABLED | MLX4_EN_WOL_MAGIC); 292 config |= MLX4_EN_WOL_DO_MODIFY; 293 } 294 295 err = mlx4_wol_write(priv->mdev->dev, config, priv->port); 296 if (err) 297 en_err(priv, "Failed to set WoL information\n"); 298 299 return err; 300 } 301 302 struct bitmap_iterator { 303 unsigned long *stats_bitmap; 304 unsigned int count; 305 unsigned int iterator; 306 bool advance_array; /* if set, force no increments */ 307 }; 308 309 static inline void bitmap_iterator_init(struct bitmap_iterator *h, 310 unsigned long *stats_bitmap, 311 int count) 312 { 313 h->iterator = 0; 314 h->advance_array = !bitmap_empty(stats_bitmap, count); 315 h->count = h->advance_array ? bitmap_weight(stats_bitmap, count) 316 : count; 317 h->stats_bitmap = stats_bitmap; 318 } 319 320 static inline int bitmap_iterator_test(struct bitmap_iterator *h) 321 { 322 return !h->advance_array ? 1 : test_bit(h->iterator, h->stats_bitmap); 323 } 324 325 static inline int bitmap_iterator_inc(struct bitmap_iterator *h) 326 { 327 return h->iterator++; 328 } 329 330 static inline unsigned int 331 bitmap_iterator_count(struct bitmap_iterator *h) 332 { 333 return h->count; 334 } 335 336 static int mlx4_en_get_sset_count(struct net_device *dev, int sset) 337 { 338 struct mlx4_en_priv *priv = netdev_priv(dev); 339 struct bitmap_iterator it; 340 341 bitmap_iterator_init(&it, priv->stats_bitmap.bitmap, NUM_ALL_STATS); 342 343 switch (sset) { 344 case ETH_SS_STATS: 345 return bitmap_iterator_count(&it) + 346 (priv->tx_ring_num[TX] * 2) + 347 (priv->rx_ring_num * (3 + NUM_XDP_STATS)); 348 case ETH_SS_TEST: 349 return MLX4_EN_NUM_SELF_TEST - !(priv->mdev->dev->caps.flags 350 & MLX4_DEV_CAP_FLAG_UC_LOOPBACK) * 2; 351 case ETH_SS_PRIV_FLAGS: 352 return ARRAY_SIZE(mlx4_en_priv_flags); 353 default: 354 return -EOPNOTSUPP; 355 } 356 } 357 358 static void mlx4_en_get_ethtool_stats(struct net_device *dev, 359 struct ethtool_stats *stats, uint64_t *data) 360 { 361 struct mlx4_en_priv *priv = netdev_priv(dev); 362 int index = 0; 363 int i; 364 struct bitmap_iterator it; 365 366 bitmap_iterator_init(&it, priv->stats_bitmap.bitmap, NUM_ALL_STATS); 367 368 spin_lock_bh(&priv->stats_lock); 369 370 mlx4_en_fold_software_stats(dev); 371 372 for (i = 0; i < NUM_MAIN_STATS; i++, bitmap_iterator_inc(&it)) 373 if (bitmap_iterator_test(&it)) 374 data[index++] = ((unsigned long *)&dev->stats)[i]; 375 376 for (i = 0; i < NUM_PORT_STATS; i++, bitmap_iterator_inc(&it)) 377 if (bitmap_iterator_test(&it)) 378 data[index++] = ((unsigned long *)&priv->port_stats)[i]; 379 380 for (i = 0; i < NUM_PF_STATS; i++, bitmap_iterator_inc(&it)) 381 if (bitmap_iterator_test(&it)) 382 data[index++] = 383 ((unsigned long *)&priv->pf_stats)[i]; 384 385 for (i = 0; i < NUM_FLOW_PRIORITY_STATS_RX; 386 i++, bitmap_iterator_inc(&it)) 387 if (bitmap_iterator_test(&it)) 388 data[index++] = 389 ((u64 *)&priv->rx_priority_flowstats)[i]; 390 391 for (i = 0; i < NUM_FLOW_STATS_RX; i++, bitmap_iterator_inc(&it)) 392 if (bitmap_iterator_test(&it)) 393 data[index++] = ((u64 *)&priv->rx_flowstats)[i]; 394 395 for (i = 0; i < NUM_FLOW_PRIORITY_STATS_TX; 396 i++, bitmap_iterator_inc(&it)) 397 if (bitmap_iterator_test(&it)) 398 data[index++] = 399 ((u64 *)&priv->tx_priority_flowstats)[i]; 400 401 for (i = 0; i < NUM_FLOW_STATS_TX; i++, bitmap_iterator_inc(&it)) 402 if (bitmap_iterator_test(&it)) 403 data[index++] = ((u64 *)&priv->tx_flowstats)[i]; 404 405 for (i = 0; i < NUM_PKT_STATS; i++, bitmap_iterator_inc(&it)) 406 if (bitmap_iterator_test(&it)) 407 data[index++] = ((unsigned long *)&priv->pkstats)[i]; 408 409 for (i = 0; i < NUM_XDP_STATS; i++, bitmap_iterator_inc(&it)) 410 if (bitmap_iterator_test(&it)) 411 data[index++] = ((unsigned long *)&priv->xdp_stats)[i]; 412 413 for (i = 0; i < priv->tx_ring_num[TX]; i++) { 414 data[index++] = priv->tx_ring[TX][i]->packets; 415 data[index++] = priv->tx_ring[TX][i]->bytes; 416 } 417 for (i = 0; i < priv->rx_ring_num; i++) { 418 data[index++] = priv->rx_ring[i]->packets; 419 data[index++] = priv->rx_ring[i]->bytes; 420 data[index++] = priv->rx_ring[i]->dropped; 421 data[index++] = priv->rx_ring[i]->xdp_drop; 422 data[index++] = priv->rx_ring[i]->xdp_tx; 423 data[index++] = priv->rx_ring[i]->xdp_tx_full; 424 } 425 spin_unlock_bh(&priv->stats_lock); 426 427 } 428 429 static void mlx4_en_self_test(struct net_device *dev, 430 struct ethtool_test *etest, u64 *buf) 431 { 432 mlx4_en_ex_selftest(dev, &etest->flags, buf); 433 } 434 435 static void mlx4_en_get_strings(struct net_device *dev, 436 uint32_t stringset, uint8_t *data) 437 { 438 struct mlx4_en_priv *priv = netdev_priv(dev); 439 int index = 0; 440 int i, strings = 0; 441 struct bitmap_iterator it; 442 443 bitmap_iterator_init(&it, priv->stats_bitmap.bitmap, NUM_ALL_STATS); 444 445 switch (stringset) { 446 case ETH_SS_TEST: 447 for (i = 0; i < MLX4_EN_NUM_SELF_TEST - 2; i++) 448 strcpy(data + i * ETH_GSTRING_LEN, mlx4_en_test_names[i]); 449 if (priv->mdev->dev->caps.flags & MLX4_DEV_CAP_FLAG_UC_LOOPBACK) 450 for (; i < MLX4_EN_NUM_SELF_TEST; i++) 451 strcpy(data + i * ETH_GSTRING_LEN, mlx4_en_test_names[i]); 452 break; 453 454 case ETH_SS_STATS: 455 /* Add main counters */ 456 for (i = 0; i < NUM_MAIN_STATS; i++, strings++, 457 bitmap_iterator_inc(&it)) 458 if (bitmap_iterator_test(&it)) 459 strcpy(data + (index++) * ETH_GSTRING_LEN, 460 main_strings[strings]); 461 462 for (i = 0; i < NUM_PORT_STATS; i++, strings++, 463 bitmap_iterator_inc(&it)) 464 if (bitmap_iterator_test(&it)) 465 strcpy(data + (index++) * ETH_GSTRING_LEN, 466 main_strings[strings]); 467 468 for (i = 0; i < NUM_PF_STATS; i++, strings++, 469 bitmap_iterator_inc(&it)) 470 if (bitmap_iterator_test(&it)) 471 strcpy(data + (index++) * ETH_GSTRING_LEN, 472 main_strings[strings]); 473 474 for (i = 0; i < NUM_FLOW_STATS; i++, strings++, 475 bitmap_iterator_inc(&it)) 476 if (bitmap_iterator_test(&it)) 477 strcpy(data + (index++) * ETH_GSTRING_LEN, 478 main_strings[strings]); 479 480 for (i = 0; i < NUM_PKT_STATS; i++, strings++, 481 bitmap_iterator_inc(&it)) 482 if (bitmap_iterator_test(&it)) 483 strcpy(data + (index++) * ETH_GSTRING_LEN, 484 main_strings[strings]); 485 486 for (i = 0; i < NUM_XDP_STATS; i++, strings++, 487 bitmap_iterator_inc(&it)) 488 if (bitmap_iterator_test(&it)) 489 strcpy(data + (index++) * ETH_GSTRING_LEN, 490 main_strings[strings]); 491 492 for (i = 0; i < priv->tx_ring_num[TX]; i++) { 493 sprintf(data + (index++) * ETH_GSTRING_LEN, 494 "tx%d_packets", i); 495 sprintf(data + (index++) * ETH_GSTRING_LEN, 496 "tx%d_bytes", i); 497 } 498 for (i = 0; i < priv->rx_ring_num; i++) { 499 sprintf(data + (index++) * ETH_GSTRING_LEN, 500 "rx%d_packets", i); 501 sprintf(data + (index++) * ETH_GSTRING_LEN, 502 "rx%d_bytes", i); 503 sprintf(data + (index++) * ETH_GSTRING_LEN, 504 "rx%d_dropped", i); 505 sprintf(data + (index++) * ETH_GSTRING_LEN, 506 "rx%d_xdp_drop", i); 507 sprintf(data + (index++) * ETH_GSTRING_LEN, 508 "rx%d_xdp_tx", i); 509 sprintf(data + (index++) * ETH_GSTRING_LEN, 510 "rx%d_xdp_tx_full", i); 511 } 512 break; 513 case ETH_SS_PRIV_FLAGS: 514 for (i = 0; i < ARRAY_SIZE(mlx4_en_priv_flags); i++) 515 strcpy(data + i * ETH_GSTRING_LEN, 516 mlx4_en_priv_flags[i]); 517 break; 518 519 } 520 } 521 522 static u32 mlx4_en_autoneg_get(struct net_device *dev) 523 { 524 struct mlx4_en_priv *priv = netdev_priv(dev); 525 struct mlx4_en_dev *mdev = priv->mdev; 526 u32 autoneg = AUTONEG_DISABLE; 527 528 if ((mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_ETH_BACKPL_AN_REP) && 529 (priv->port_state.flags & MLX4_EN_PORT_ANE)) 530 autoneg = AUTONEG_ENABLE; 531 532 return autoneg; 533 } 534 535 static void ptys2ethtool_update_supported_port(unsigned long *mask, 536 struct mlx4_ptys_reg *ptys_reg) 537 { 538 u32 eth_proto = be32_to_cpu(ptys_reg->eth_proto_cap); 539 540 if (eth_proto & (MLX4_PROT_MASK(MLX4_10GBASE_T) 541 | MLX4_PROT_MASK(MLX4_1000BASE_T) 542 | MLX4_PROT_MASK(MLX4_100BASE_TX))) { 543 __set_bit(ETHTOOL_LINK_MODE_TP_BIT, mask); 544 } else if (eth_proto & (MLX4_PROT_MASK(MLX4_10GBASE_CR) 545 | MLX4_PROT_MASK(MLX4_10GBASE_SR) 546 | MLX4_PROT_MASK(MLX4_56GBASE_SR4) 547 | MLX4_PROT_MASK(MLX4_40GBASE_CR4) 548 | MLX4_PROT_MASK(MLX4_40GBASE_SR4) 549 | MLX4_PROT_MASK(MLX4_1000BASE_CX_SGMII))) { 550 __set_bit(ETHTOOL_LINK_MODE_FIBRE_BIT, mask); 551 } else if (eth_proto & (MLX4_PROT_MASK(MLX4_56GBASE_KR4) 552 | MLX4_PROT_MASK(MLX4_40GBASE_KR4) 553 | MLX4_PROT_MASK(MLX4_20GBASE_KR2) 554 | MLX4_PROT_MASK(MLX4_10GBASE_KR) 555 | MLX4_PROT_MASK(MLX4_10GBASE_KX4) 556 | MLX4_PROT_MASK(MLX4_1000BASE_KX))) { 557 __set_bit(ETHTOOL_LINK_MODE_Backplane_BIT, mask); 558 } 559 } 560 561 static u32 ptys_get_active_port(struct mlx4_ptys_reg *ptys_reg) 562 { 563 u32 eth_proto = be32_to_cpu(ptys_reg->eth_proto_oper); 564 565 if (!eth_proto) /* link down */ 566 eth_proto = be32_to_cpu(ptys_reg->eth_proto_cap); 567 568 if (eth_proto & (MLX4_PROT_MASK(MLX4_10GBASE_T) 569 | MLX4_PROT_MASK(MLX4_1000BASE_T) 570 | MLX4_PROT_MASK(MLX4_100BASE_TX))) { 571 return PORT_TP; 572 } 573 574 if (eth_proto & (MLX4_PROT_MASK(MLX4_10GBASE_SR) 575 | MLX4_PROT_MASK(MLX4_56GBASE_SR4) 576 | MLX4_PROT_MASK(MLX4_40GBASE_SR4) 577 | MLX4_PROT_MASK(MLX4_1000BASE_CX_SGMII))) { 578 return PORT_FIBRE; 579 } 580 581 if (eth_proto & (MLX4_PROT_MASK(MLX4_10GBASE_CR) 582 | MLX4_PROT_MASK(MLX4_56GBASE_CR4) 583 | MLX4_PROT_MASK(MLX4_40GBASE_CR4))) { 584 return PORT_DA; 585 } 586 587 if (eth_proto & (MLX4_PROT_MASK(MLX4_56GBASE_KR4) 588 | MLX4_PROT_MASK(MLX4_40GBASE_KR4) 589 | MLX4_PROT_MASK(MLX4_20GBASE_KR2) 590 | MLX4_PROT_MASK(MLX4_10GBASE_KR) 591 | MLX4_PROT_MASK(MLX4_10GBASE_KX4) 592 | MLX4_PROT_MASK(MLX4_1000BASE_KX))) { 593 return PORT_NONE; 594 } 595 return PORT_OTHER; 596 } 597 598 #define MLX4_LINK_MODES_SZ \ 599 (FIELD_SIZEOF(struct mlx4_ptys_reg, eth_proto_cap) * 8) 600 601 enum ethtool_report { 602 SUPPORTED = 0, 603 ADVERTISED = 1, 604 }; 605 606 struct ptys2ethtool_config { 607 __ETHTOOL_DECLARE_LINK_MODE_MASK(supported); 608 __ETHTOOL_DECLARE_LINK_MODE_MASK(advertised); 609 u32 speed; 610 }; 611 612 static unsigned long *ptys2ethtool_link_mode(struct ptys2ethtool_config *cfg, 613 enum ethtool_report report) 614 { 615 switch (report) { 616 case SUPPORTED: 617 return cfg->supported; 618 case ADVERTISED: 619 return cfg->advertised; 620 } 621 return NULL; 622 } 623 624 #define MLX4_BUILD_PTYS2ETHTOOL_CONFIG(reg_, speed_, ...) \ 625 ({ \ 626 struct ptys2ethtool_config *cfg; \ 627 const unsigned int modes[] = { __VA_ARGS__ }; \ 628 unsigned int i; \ 629 cfg = &ptys2ethtool_map[reg_]; \ 630 cfg->speed = speed_; \ 631 bitmap_zero(cfg->supported, \ 632 __ETHTOOL_LINK_MODE_MASK_NBITS); \ 633 bitmap_zero(cfg->advertised, \ 634 __ETHTOOL_LINK_MODE_MASK_NBITS); \ 635 for (i = 0 ; i < ARRAY_SIZE(modes) ; ++i) { \ 636 __set_bit(modes[i], cfg->supported); \ 637 __set_bit(modes[i], cfg->advertised); \ 638 } \ 639 }) 640 641 /* Translates mlx4 link mode to equivalent ethtool Link modes/speed */ 642 static struct ptys2ethtool_config ptys2ethtool_map[MLX4_LINK_MODES_SZ]; 643 644 void __init mlx4_en_init_ptys2ethtool_map(void) 645 { 646 MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_100BASE_TX, SPEED_100, 647 ETHTOOL_LINK_MODE_100baseT_Full_BIT); 648 MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_1000BASE_T, SPEED_1000, 649 ETHTOOL_LINK_MODE_1000baseT_Full_BIT); 650 MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_1000BASE_CX_SGMII, SPEED_1000, 651 ETHTOOL_LINK_MODE_1000baseKX_Full_BIT); 652 MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_1000BASE_KX, SPEED_1000, 653 ETHTOOL_LINK_MODE_1000baseKX_Full_BIT); 654 MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_10GBASE_T, SPEED_10000, 655 ETHTOOL_LINK_MODE_10000baseT_Full_BIT); 656 MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_10GBASE_CX4, SPEED_10000, 657 ETHTOOL_LINK_MODE_10000baseKX4_Full_BIT); 658 MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_10GBASE_KX4, SPEED_10000, 659 ETHTOOL_LINK_MODE_10000baseKX4_Full_BIT); 660 MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_10GBASE_KR, SPEED_10000, 661 ETHTOOL_LINK_MODE_10000baseKR_Full_BIT); 662 MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_10GBASE_CR, SPEED_10000, 663 ETHTOOL_LINK_MODE_10000baseKR_Full_BIT); 664 MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_10GBASE_SR, SPEED_10000, 665 ETHTOOL_LINK_MODE_10000baseKR_Full_BIT); 666 MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_20GBASE_KR2, SPEED_20000, 667 ETHTOOL_LINK_MODE_20000baseMLD2_Full_BIT, 668 ETHTOOL_LINK_MODE_20000baseKR2_Full_BIT); 669 MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_40GBASE_CR4, SPEED_40000, 670 ETHTOOL_LINK_MODE_40000baseCR4_Full_BIT); 671 MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_40GBASE_KR4, SPEED_40000, 672 ETHTOOL_LINK_MODE_40000baseKR4_Full_BIT); 673 MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_40GBASE_SR4, SPEED_40000, 674 ETHTOOL_LINK_MODE_40000baseSR4_Full_BIT); 675 MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_56GBASE_KR4, SPEED_56000, 676 ETHTOOL_LINK_MODE_56000baseKR4_Full_BIT); 677 MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_56GBASE_CR4, SPEED_56000, 678 ETHTOOL_LINK_MODE_56000baseCR4_Full_BIT); 679 MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_56GBASE_SR4, SPEED_56000, 680 ETHTOOL_LINK_MODE_56000baseSR4_Full_BIT); 681 }; 682 683 static void ptys2ethtool_update_link_modes(unsigned long *link_modes, 684 u32 eth_proto, 685 enum ethtool_report report) 686 { 687 int i; 688 for (i = 0; i < MLX4_LINK_MODES_SZ; i++) { 689 if (eth_proto & MLX4_PROT_MASK(i)) 690 bitmap_or(link_modes, link_modes, 691 ptys2ethtool_link_mode(&ptys2ethtool_map[i], 692 report), 693 __ETHTOOL_LINK_MODE_MASK_NBITS); 694 } 695 } 696 697 static u32 ethtool2ptys_link_modes(const unsigned long *link_modes, 698 enum ethtool_report report) 699 { 700 int i; 701 u32 ptys_modes = 0; 702 703 for (i = 0; i < MLX4_LINK_MODES_SZ; i++) { 704 if (bitmap_intersects( 705 ptys2ethtool_link_mode(&ptys2ethtool_map[i], 706 report), 707 link_modes, 708 __ETHTOOL_LINK_MODE_MASK_NBITS)) 709 ptys_modes |= 1 << i; 710 } 711 return ptys_modes; 712 } 713 714 /* Convert actual speed (SPEED_XXX) to ptys link modes */ 715 static u32 speed2ptys_link_modes(u32 speed) 716 { 717 int i; 718 u32 ptys_modes = 0; 719 720 for (i = 0; i < MLX4_LINK_MODES_SZ; i++) { 721 if (ptys2ethtool_map[i].speed == speed) 722 ptys_modes |= 1 << i; 723 } 724 return ptys_modes; 725 } 726 727 static int 728 ethtool_get_ptys_link_ksettings(struct net_device *dev, 729 struct ethtool_link_ksettings *link_ksettings) 730 { 731 struct mlx4_en_priv *priv = netdev_priv(dev); 732 struct mlx4_ptys_reg ptys_reg; 733 u32 eth_proto; 734 int ret; 735 736 memset(&ptys_reg, 0, sizeof(ptys_reg)); 737 ptys_reg.local_port = priv->port; 738 ptys_reg.proto_mask = MLX4_PTYS_EN; 739 ret = mlx4_ACCESS_PTYS_REG(priv->mdev->dev, 740 MLX4_ACCESS_REG_QUERY, &ptys_reg); 741 if (ret) { 742 en_warn(priv, "Failed to run mlx4_ACCESS_PTYS_REG status(%x)", 743 ret); 744 return ret; 745 } 746 en_dbg(DRV, priv, "ptys_reg.proto_mask %x\n", 747 ptys_reg.proto_mask); 748 en_dbg(DRV, priv, "ptys_reg.eth_proto_cap %x\n", 749 be32_to_cpu(ptys_reg.eth_proto_cap)); 750 en_dbg(DRV, priv, "ptys_reg.eth_proto_admin %x\n", 751 be32_to_cpu(ptys_reg.eth_proto_admin)); 752 en_dbg(DRV, priv, "ptys_reg.eth_proto_oper %x\n", 753 be32_to_cpu(ptys_reg.eth_proto_oper)); 754 en_dbg(DRV, priv, "ptys_reg.eth_proto_lp_adv %x\n", 755 be32_to_cpu(ptys_reg.eth_proto_lp_adv)); 756 757 /* reset supported/advertising masks */ 758 ethtool_link_ksettings_zero_link_mode(link_ksettings, supported); 759 ethtool_link_ksettings_zero_link_mode(link_ksettings, advertising); 760 761 ptys2ethtool_update_supported_port(link_ksettings->link_modes.supported, 762 &ptys_reg); 763 764 eth_proto = be32_to_cpu(ptys_reg.eth_proto_cap); 765 ptys2ethtool_update_link_modes(link_ksettings->link_modes.supported, 766 eth_proto, SUPPORTED); 767 768 eth_proto = be32_to_cpu(ptys_reg.eth_proto_admin); 769 ptys2ethtool_update_link_modes(link_ksettings->link_modes.advertising, 770 eth_proto, ADVERTISED); 771 772 ethtool_link_ksettings_add_link_mode(link_ksettings, supported, 773 Pause); 774 ethtool_link_ksettings_add_link_mode(link_ksettings, supported, 775 Asym_Pause); 776 777 if (priv->prof->tx_pause) 778 ethtool_link_ksettings_add_link_mode(link_ksettings, 779 advertising, Pause); 780 if (priv->prof->tx_pause ^ priv->prof->rx_pause) 781 ethtool_link_ksettings_add_link_mode(link_ksettings, 782 advertising, Asym_Pause); 783 784 link_ksettings->base.port = ptys_get_active_port(&ptys_reg); 785 786 if (mlx4_en_autoneg_get(dev)) { 787 ethtool_link_ksettings_add_link_mode(link_ksettings, 788 supported, Autoneg); 789 ethtool_link_ksettings_add_link_mode(link_ksettings, 790 advertising, Autoneg); 791 } 792 793 link_ksettings->base.autoneg 794 = (priv->port_state.flags & MLX4_EN_PORT_ANC) ? 795 AUTONEG_ENABLE : AUTONEG_DISABLE; 796 797 eth_proto = be32_to_cpu(ptys_reg.eth_proto_lp_adv); 798 799 ethtool_link_ksettings_zero_link_mode(link_ksettings, lp_advertising); 800 ptys2ethtool_update_link_modes( 801 link_ksettings->link_modes.lp_advertising, 802 eth_proto, ADVERTISED); 803 if (priv->port_state.flags & MLX4_EN_PORT_ANC) 804 ethtool_link_ksettings_add_link_mode(link_ksettings, 805 lp_advertising, Autoneg); 806 807 link_ksettings->base.phy_address = 0; 808 link_ksettings->base.mdio_support = 0; 809 link_ksettings->base.eth_tp_mdix = ETH_TP_MDI_INVALID; 810 link_ksettings->base.eth_tp_mdix_ctrl = ETH_TP_MDI_AUTO; 811 812 return ret; 813 } 814 815 static void 816 ethtool_get_default_link_ksettings( 817 struct net_device *dev, struct ethtool_link_ksettings *link_ksettings) 818 { 819 struct mlx4_en_priv *priv = netdev_priv(dev); 820 int trans_type; 821 822 link_ksettings->base.autoneg = AUTONEG_DISABLE; 823 824 ethtool_link_ksettings_zero_link_mode(link_ksettings, supported); 825 ethtool_link_ksettings_add_link_mode(link_ksettings, supported, 826 10000baseT_Full); 827 828 ethtool_link_ksettings_zero_link_mode(link_ksettings, advertising); 829 ethtool_link_ksettings_add_link_mode(link_ksettings, advertising, 830 10000baseT_Full); 831 832 trans_type = priv->port_state.transceiver; 833 if (trans_type > 0 && trans_type <= 0xC) { 834 link_ksettings->base.port = PORT_FIBRE; 835 ethtool_link_ksettings_add_link_mode(link_ksettings, 836 supported, FIBRE); 837 ethtool_link_ksettings_add_link_mode(link_ksettings, 838 advertising, FIBRE); 839 } else if (trans_type == 0x80 || trans_type == 0) { 840 link_ksettings->base.port = PORT_TP; 841 ethtool_link_ksettings_add_link_mode(link_ksettings, 842 supported, TP); 843 ethtool_link_ksettings_add_link_mode(link_ksettings, 844 advertising, TP); 845 } else { 846 link_ksettings->base.port = -1; 847 } 848 } 849 850 static int 851 mlx4_en_get_link_ksettings(struct net_device *dev, 852 struct ethtool_link_ksettings *link_ksettings) 853 { 854 struct mlx4_en_priv *priv = netdev_priv(dev); 855 int ret = -EINVAL; 856 857 if (mlx4_en_QUERY_PORT(priv->mdev, priv->port)) 858 return -ENOMEM; 859 860 en_dbg(DRV, priv, "query port state.flags ANC(%x) ANE(%x)\n", 861 priv->port_state.flags & MLX4_EN_PORT_ANC, 862 priv->port_state.flags & MLX4_EN_PORT_ANE); 863 864 if (priv->mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_ETH_PROT_CTRL) 865 ret = ethtool_get_ptys_link_ksettings(dev, link_ksettings); 866 if (ret) /* ETH PROT CRTL is not supported or PTYS CMD failed */ 867 ethtool_get_default_link_ksettings(dev, link_ksettings); 868 869 if (netif_carrier_ok(dev)) { 870 link_ksettings->base.speed = priv->port_state.link_speed; 871 link_ksettings->base.duplex = DUPLEX_FULL; 872 } else { 873 link_ksettings->base.speed = SPEED_UNKNOWN; 874 link_ksettings->base.duplex = DUPLEX_UNKNOWN; 875 } 876 return 0; 877 } 878 879 /* Calculate PTYS admin according ethtool speed (SPEED_XXX) */ 880 static __be32 speed_set_ptys_admin(struct mlx4_en_priv *priv, u32 speed, 881 __be32 proto_cap) 882 { 883 __be32 proto_admin = 0; 884 885 if (!speed) { /* Speed = 0 ==> Reset Link modes */ 886 proto_admin = proto_cap; 887 en_info(priv, "Speed was set to 0, Reset advertised Link Modes to default (%x)\n", 888 be32_to_cpu(proto_cap)); 889 } else { 890 u32 ptys_link_modes = speed2ptys_link_modes(speed); 891 892 proto_admin = cpu_to_be32(ptys_link_modes) & proto_cap; 893 en_info(priv, "Setting Speed to %d\n", speed); 894 } 895 return proto_admin; 896 } 897 898 static int 899 mlx4_en_set_link_ksettings(struct net_device *dev, 900 const struct ethtool_link_ksettings *link_ksettings) 901 { 902 struct mlx4_en_priv *priv = netdev_priv(dev); 903 struct mlx4_ptys_reg ptys_reg; 904 __be32 proto_admin; 905 u8 cur_autoneg; 906 int ret; 907 908 u32 ptys_adv = ethtool2ptys_link_modes( 909 link_ksettings->link_modes.advertising, ADVERTISED); 910 const int speed = link_ksettings->base.speed; 911 912 en_dbg(DRV, priv, 913 "Set Speed=%d adv={%*pbl} autoneg=%d duplex=%d\n", 914 speed, __ETHTOOL_LINK_MODE_MASK_NBITS, 915 link_ksettings->link_modes.advertising, 916 link_ksettings->base.autoneg, 917 link_ksettings->base.duplex); 918 919 if (!(priv->mdev->dev->caps.flags2 & 920 MLX4_DEV_CAP_FLAG2_ETH_PROT_CTRL) || 921 (link_ksettings->base.duplex == DUPLEX_HALF)) 922 return -EINVAL; 923 924 memset(&ptys_reg, 0, sizeof(ptys_reg)); 925 ptys_reg.local_port = priv->port; 926 ptys_reg.proto_mask = MLX4_PTYS_EN; 927 ret = mlx4_ACCESS_PTYS_REG(priv->mdev->dev, 928 MLX4_ACCESS_REG_QUERY, &ptys_reg); 929 if (ret) { 930 en_warn(priv, "Failed to QUERY mlx4_ACCESS_PTYS_REG status(%x)\n", 931 ret); 932 return 0; 933 } 934 935 cur_autoneg = ptys_reg.flags & MLX4_PTYS_AN_DISABLE_ADMIN ? 936 AUTONEG_DISABLE : AUTONEG_ENABLE; 937 938 if (link_ksettings->base.autoneg == AUTONEG_DISABLE) { 939 proto_admin = speed_set_ptys_admin(priv, speed, 940 ptys_reg.eth_proto_cap); 941 if ((be32_to_cpu(proto_admin) & 942 (MLX4_PROT_MASK(MLX4_1000BASE_CX_SGMII) | 943 MLX4_PROT_MASK(MLX4_1000BASE_KX))) && 944 (ptys_reg.flags & MLX4_PTYS_AN_DISABLE_CAP)) 945 ptys_reg.flags |= MLX4_PTYS_AN_DISABLE_ADMIN; 946 } else { 947 proto_admin = cpu_to_be32(ptys_adv); 948 ptys_reg.flags &= ~MLX4_PTYS_AN_DISABLE_ADMIN; 949 } 950 951 proto_admin &= ptys_reg.eth_proto_cap; 952 if (!proto_admin) { 953 en_warn(priv, "Not supported link mode(s) requested, check supported link modes.\n"); 954 return -EINVAL; /* nothing to change due to bad input */ 955 } 956 957 if ((proto_admin == ptys_reg.eth_proto_admin) && 958 ((ptys_reg.flags & MLX4_PTYS_AN_DISABLE_CAP) && 959 (link_ksettings->base.autoneg == cur_autoneg))) 960 return 0; /* Nothing to change */ 961 962 en_dbg(DRV, priv, "mlx4_ACCESS_PTYS_REG SET: ptys_reg.eth_proto_admin = 0x%x\n", 963 be32_to_cpu(proto_admin)); 964 965 ptys_reg.eth_proto_admin = proto_admin; 966 ret = mlx4_ACCESS_PTYS_REG(priv->mdev->dev, MLX4_ACCESS_REG_WRITE, 967 &ptys_reg); 968 if (ret) { 969 en_warn(priv, "Failed to write mlx4_ACCESS_PTYS_REG eth_proto_admin(0x%x) status(0x%x)", 970 be32_to_cpu(ptys_reg.eth_proto_admin), ret); 971 return ret; 972 } 973 974 mutex_lock(&priv->mdev->state_lock); 975 if (priv->port_up) { 976 en_warn(priv, "Port link mode changed, restarting port...\n"); 977 mlx4_en_stop_port(dev, 1); 978 if (mlx4_en_start_port(dev)) 979 en_err(priv, "Failed restarting port %d\n", priv->port); 980 } 981 mutex_unlock(&priv->mdev->state_lock); 982 return 0; 983 } 984 985 static int mlx4_en_get_coalesce(struct net_device *dev, 986 struct ethtool_coalesce *coal) 987 { 988 struct mlx4_en_priv *priv = netdev_priv(dev); 989 990 coal->tx_coalesce_usecs = priv->tx_usecs; 991 coal->tx_max_coalesced_frames = priv->tx_frames; 992 coal->tx_max_coalesced_frames_irq = priv->tx_work_limit; 993 994 coal->rx_coalesce_usecs = priv->rx_usecs; 995 coal->rx_max_coalesced_frames = priv->rx_frames; 996 997 coal->pkt_rate_low = priv->pkt_rate_low; 998 coal->rx_coalesce_usecs_low = priv->rx_usecs_low; 999 coal->pkt_rate_high = priv->pkt_rate_high; 1000 coal->rx_coalesce_usecs_high = priv->rx_usecs_high; 1001 coal->rate_sample_interval = priv->sample_interval; 1002 coal->use_adaptive_rx_coalesce = priv->adaptive_rx_coal; 1003 1004 return 0; 1005 } 1006 1007 static int mlx4_en_set_coalesce(struct net_device *dev, 1008 struct ethtool_coalesce *coal) 1009 { 1010 struct mlx4_en_priv *priv = netdev_priv(dev); 1011 1012 if (!coal->tx_max_coalesced_frames_irq) 1013 return -EINVAL; 1014 1015 priv->rx_frames = (coal->rx_max_coalesced_frames == 1016 MLX4_EN_AUTO_CONF) ? 1017 MLX4_EN_RX_COAL_TARGET : 1018 coal->rx_max_coalesced_frames; 1019 priv->rx_usecs = (coal->rx_coalesce_usecs == 1020 MLX4_EN_AUTO_CONF) ? 1021 MLX4_EN_RX_COAL_TIME : 1022 coal->rx_coalesce_usecs; 1023 1024 /* Setting TX coalescing parameters */ 1025 if (coal->tx_coalesce_usecs != priv->tx_usecs || 1026 coal->tx_max_coalesced_frames != priv->tx_frames) { 1027 priv->tx_usecs = coal->tx_coalesce_usecs; 1028 priv->tx_frames = coal->tx_max_coalesced_frames; 1029 } 1030 1031 /* Set adaptive coalescing params */ 1032 priv->pkt_rate_low = coal->pkt_rate_low; 1033 priv->rx_usecs_low = coal->rx_coalesce_usecs_low; 1034 priv->pkt_rate_high = coal->pkt_rate_high; 1035 priv->rx_usecs_high = coal->rx_coalesce_usecs_high; 1036 priv->sample_interval = coal->rate_sample_interval; 1037 priv->adaptive_rx_coal = coal->use_adaptive_rx_coalesce; 1038 priv->tx_work_limit = coal->tx_max_coalesced_frames_irq; 1039 1040 return mlx4_en_moderation_update(priv); 1041 } 1042 1043 static int mlx4_en_set_pauseparam(struct net_device *dev, 1044 struct ethtool_pauseparam *pause) 1045 { 1046 struct mlx4_en_priv *priv = netdev_priv(dev); 1047 struct mlx4_en_dev *mdev = priv->mdev; 1048 int err; 1049 1050 if (pause->autoneg) 1051 return -EINVAL; 1052 1053 priv->prof->tx_pause = pause->tx_pause != 0; 1054 priv->prof->rx_pause = pause->rx_pause != 0; 1055 err = mlx4_SET_PORT_general(mdev->dev, priv->port, 1056 priv->rx_skb_size + ETH_FCS_LEN, 1057 priv->prof->tx_pause, 1058 priv->prof->tx_ppp, 1059 priv->prof->rx_pause, 1060 priv->prof->rx_ppp); 1061 if (err) 1062 en_err(priv, "Failed setting pause params\n"); 1063 else 1064 mlx4_en_update_pfc_stats_bitmap(mdev->dev, &priv->stats_bitmap, 1065 priv->prof->rx_ppp, 1066 priv->prof->rx_pause, 1067 priv->prof->tx_ppp, 1068 priv->prof->tx_pause); 1069 1070 return err; 1071 } 1072 1073 static void mlx4_en_get_pauseparam(struct net_device *dev, 1074 struct ethtool_pauseparam *pause) 1075 { 1076 struct mlx4_en_priv *priv = netdev_priv(dev); 1077 1078 pause->tx_pause = priv->prof->tx_pause; 1079 pause->rx_pause = priv->prof->rx_pause; 1080 } 1081 1082 static int mlx4_en_set_ringparam(struct net_device *dev, 1083 struct ethtool_ringparam *param) 1084 { 1085 struct mlx4_en_priv *priv = netdev_priv(dev); 1086 struct mlx4_en_dev *mdev = priv->mdev; 1087 struct mlx4_en_port_profile new_prof; 1088 struct mlx4_en_priv *tmp; 1089 u32 rx_size, tx_size; 1090 int port_up = 0; 1091 int err = 0; 1092 1093 if (param->rx_jumbo_pending || param->rx_mini_pending) 1094 return -EINVAL; 1095 1096 rx_size = roundup_pow_of_two(param->rx_pending); 1097 rx_size = max_t(u32, rx_size, MLX4_EN_MIN_RX_SIZE); 1098 rx_size = min_t(u32, rx_size, MLX4_EN_MAX_RX_SIZE); 1099 tx_size = roundup_pow_of_two(param->tx_pending); 1100 tx_size = max_t(u32, tx_size, MLX4_EN_MIN_TX_SIZE); 1101 tx_size = min_t(u32, tx_size, MLX4_EN_MAX_TX_SIZE); 1102 1103 if (rx_size == (priv->port_up ? priv->rx_ring[0]->actual_size : 1104 priv->rx_ring[0]->size) && 1105 tx_size == priv->tx_ring[TX][0]->size) 1106 return 0; 1107 1108 tmp = kzalloc(sizeof(*tmp), GFP_KERNEL); 1109 if (!tmp) 1110 return -ENOMEM; 1111 1112 mutex_lock(&mdev->state_lock); 1113 memcpy(&new_prof, priv->prof, sizeof(struct mlx4_en_port_profile)); 1114 new_prof.tx_ring_size = tx_size; 1115 new_prof.rx_ring_size = rx_size; 1116 err = mlx4_en_try_alloc_resources(priv, tmp, &new_prof, true); 1117 if (err) 1118 goto out; 1119 1120 if (priv->port_up) { 1121 port_up = 1; 1122 mlx4_en_stop_port(dev, 1); 1123 } 1124 1125 mlx4_en_safe_replace_resources(priv, tmp); 1126 1127 if (port_up) { 1128 err = mlx4_en_start_port(dev); 1129 if (err) 1130 en_err(priv, "Failed starting port\n"); 1131 } 1132 1133 err = mlx4_en_moderation_update(priv); 1134 out: 1135 kfree(tmp); 1136 mutex_unlock(&mdev->state_lock); 1137 return err; 1138 } 1139 1140 static void mlx4_en_get_ringparam(struct net_device *dev, 1141 struct ethtool_ringparam *param) 1142 { 1143 struct mlx4_en_priv *priv = netdev_priv(dev); 1144 1145 memset(param, 0, sizeof(*param)); 1146 param->rx_max_pending = MLX4_EN_MAX_RX_SIZE; 1147 param->tx_max_pending = MLX4_EN_MAX_TX_SIZE; 1148 param->rx_pending = priv->port_up ? 1149 priv->rx_ring[0]->actual_size : priv->rx_ring[0]->size; 1150 param->tx_pending = priv->tx_ring[TX][0]->size; 1151 } 1152 1153 static u32 mlx4_en_get_rxfh_indir_size(struct net_device *dev) 1154 { 1155 struct mlx4_en_priv *priv = netdev_priv(dev); 1156 1157 return rounddown_pow_of_two(priv->rx_ring_num); 1158 } 1159 1160 static u32 mlx4_en_get_rxfh_key_size(struct net_device *netdev) 1161 { 1162 return MLX4_EN_RSS_KEY_SIZE; 1163 } 1164 1165 static int mlx4_en_check_rxfh_func(struct net_device *dev, u8 hfunc) 1166 { 1167 struct mlx4_en_priv *priv = netdev_priv(dev); 1168 1169 /* check if requested function is supported by the device */ 1170 if (hfunc == ETH_RSS_HASH_TOP) { 1171 if (!(priv->mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_RSS_TOP)) 1172 return -EINVAL; 1173 if (!(dev->features & NETIF_F_RXHASH)) 1174 en_warn(priv, "Toeplitz hash function should be used in conjunction with RX hashing for optimal performance\n"); 1175 return 0; 1176 } else if (hfunc == ETH_RSS_HASH_XOR) { 1177 if (!(priv->mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_RSS_XOR)) 1178 return -EINVAL; 1179 if (dev->features & NETIF_F_RXHASH) 1180 en_warn(priv, "Enabling both XOR Hash function and RX Hashing can limit RPS functionality\n"); 1181 return 0; 1182 } 1183 1184 return -EINVAL; 1185 } 1186 1187 static int mlx4_en_get_rxfh(struct net_device *dev, u32 *ring_index, u8 *key, 1188 u8 *hfunc) 1189 { 1190 struct mlx4_en_priv *priv = netdev_priv(dev); 1191 u32 n = mlx4_en_get_rxfh_indir_size(dev); 1192 u32 i, rss_rings; 1193 int err = 0; 1194 1195 rss_rings = priv->prof->rss_rings ?: n; 1196 rss_rings = rounddown_pow_of_two(rss_rings); 1197 1198 for (i = 0; i < n; i++) { 1199 if (!ring_index) 1200 break; 1201 ring_index[i] = i % rss_rings; 1202 } 1203 if (key) 1204 memcpy(key, priv->rss_key, MLX4_EN_RSS_KEY_SIZE); 1205 if (hfunc) 1206 *hfunc = priv->rss_hash_fn; 1207 return err; 1208 } 1209 1210 static int mlx4_en_set_rxfh(struct net_device *dev, const u32 *ring_index, 1211 const u8 *key, const u8 hfunc) 1212 { 1213 struct mlx4_en_priv *priv = netdev_priv(dev); 1214 u32 n = mlx4_en_get_rxfh_indir_size(dev); 1215 struct mlx4_en_dev *mdev = priv->mdev; 1216 int port_up = 0; 1217 int err = 0; 1218 int i; 1219 int rss_rings = 0; 1220 1221 /* Calculate RSS table size and make sure flows are spread evenly 1222 * between rings 1223 */ 1224 for (i = 0; i < n; i++) { 1225 if (!ring_index) 1226 break; 1227 if (i > 0 && !ring_index[i] && !rss_rings) 1228 rss_rings = i; 1229 1230 if (ring_index[i] != (i % (rss_rings ?: n))) 1231 return -EINVAL; 1232 } 1233 1234 if (!rss_rings) 1235 rss_rings = n; 1236 1237 /* RSS table size must be an order of 2 */ 1238 if (!is_power_of_2(rss_rings)) 1239 return -EINVAL; 1240 1241 if (hfunc != ETH_RSS_HASH_NO_CHANGE) { 1242 err = mlx4_en_check_rxfh_func(dev, hfunc); 1243 if (err) 1244 return err; 1245 } 1246 1247 mutex_lock(&mdev->state_lock); 1248 if (priv->port_up) { 1249 port_up = 1; 1250 mlx4_en_stop_port(dev, 1); 1251 } 1252 1253 if (ring_index) 1254 priv->prof->rss_rings = rss_rings; 1255 if (key) 1256 memcpy(priv->rss_key, key, MLX4_EN_RSS_KEY_SIZE); 1257 if (hfunc != ETH_RSS_HASH_NO_CHANGE) 1258 priv->rss_hash_fn = hfunc; 1259 1260 if (port_up) { 1261 err = mlx4_en_start_port(dev); 1262 if (err) 1263 en_err(priv, "Failed starting port\n"); 1264 } 1265 1266 mutex_unlock(&mdev->state_lock); 1267 return err; 1268 } 1269 1270 #define all_zeros_or_all_ones(field) \ 1271 ((field) == 0 || (field) == (__force typeof(field))-1) 1272 1273 static int mlx4_en_validate_flow(struct net_device *dev, 1274 struct ethtool_rxnfc *cmd) 1275 { 1276 struct ethtool_usrip4_spec *l3_mask; 1277 struct ethtool_tcpip4_spec *l4_mask; 1278 struct ethhdr *eth_mask; 1279 1280 if (cmd->fs.location >= MAX_NUM_OF_FS_RULES) 1281 return -EINVAL; 1282 1283 if (cmd->fs.flow_type & FLOW_MAC_EXT) { 1284 /* dest mac mask must be ff:ff:ff:ff:ff:ff */ 1285 if (!is_broadcast_ether_addr(cmd->fs.m_ext.h_dest)) 1286 return -EINVAL; 1287 } 1288 1289 switch (cmd->fs.flow_type & ~(FLOW_EXT | FLOW_MAC_EXT)) { 1290 case TCP_V4_FLOW: 1291 case UDP_V4_FLOW: 1292 if (cmd->fs.m_u.tcp_ip4_spec.tos) 1293 return -EINVAL; 1294 l4_mask = &cmd->fs.m_u.tcp_ip4_spec; 1295 /* don't allow mask which isn't all 0 or 1 */ 1296 if (!all_zeros_or_all_ones(l4_mask->ip4src) || 1297 !all_zeros_or_all_ones(l4_mask->ip4dst) || 1298 !all_zeros_or_all_ones(l4_mask->psrc) || 1299 !all_zeros_or_all_ones(l4_mask->pdst)) 1300 return -EINVAL; 1301 break; 1302 case IP_USER_FLOW: 1303 l3_mask = &cmd->fs.m_u.usr_ip4_spec; 1304 if (l3_mask->l4_4_bytes || l3_mask->tos || l3_mask->proto || 1305 cmd->fs.h_u.usr_ip4_spec.ip_ver != ETH_RX_NFC_IP4 || 1306 (!l3_mask->ip4src && !l3_mask->ip4dst) || 1307 !all_zeros_or_all_ones(l3_mask->ip4src) || 1308 !all_zeros_or_all_ones(l3_mask->ip4dst)) 1309 return -EINVAL; 1310 break; 1311 case ETHER_FLOW: 1312 eth_mask = &cmd->fs.m_u.ether_spec; 1313 /* source mac mask must not be set */ 1314 if (!is_zero_ether_addr(eth_mask->h_source)) 1315 return -EINVAL; 1316 1317 /* dest mac mask must be ff:ff:ff:ff:ff:ff */ 1318 if (!is_broadcast_ether_addr(eth_mask->h_dest)) 1319 return -EINVAL; 1320 1321 if (!all_zeros_or_all_ones(eth_mask->h_proto)) 1322 return -EINVAL; 1323 break; 1324 default: 1325 return -EINVAL; 1326 } 1327 1328 if ((cmd->fs.flow_type & FLOW_EXT)) { 1329 if (cmd->fs.m_ext.vlan_etype || 1330 !((cmd->fs.m_ext.vlan_tci & cpu_to_be16(VLAN_VID_MASK)) == 1331 0 || 1332 (cmd->fs.m_ext.vlan_tci & cpu_to_be16(VLAN_VID_MASK)) == 1333 cpu_to_be16(VLAN_VID_MASK))) 1334 return -EINVAL; 1335 1336 if (cmd->fs.m_ext.vlan_tci) { 1337 if (be16_to_cpu(cmd->fs.h_ext.vlan_tci) >= VLAN_N_VID) 1338 return -EINVAL; 1339 1340 } 1341 } 1342 1343 return 0; 1344 } 1345 1346 static int mlx4_en_ethtool_add_mac_rule(struct ethtool_rxnfc *cmd, 1347 struct list_head *rule_list_h, 1348 struct mlx4_spec_list *spec_l2, 1349 unsigned char *mac) 1350 { 1351 int err = 0; 1352 __be64 mac_msk = cpu_to_be64(MLX4_MAC_MASK << 16); 1353 1354 spec_l2->id = MLX4_NET_TRANS_RULE_ID_ETH; 1355 memcpy(spec_l2->eth.dst_mac_msk, &mac_msk, ETH_ALEN); 1356 memcpy(spec_l2->eth.dst_mac, mac, ETH_ALEN); 1357 1358 if ((cmd->fs.flow_type & FLOW_EXT) && 1359 (cmd->fs.m_ext.vlan_tci & cpu_to_be16(VLAN_VID_MASK))) { 1360 spec_l2->eth.vlan_id = cmd->fs.h_ext.vlan_tci; 1361 spec_l2->eth.vlan_id_msk = cpu_to_be16(VLAN_VID_MASK); 1362 } 1363 1364 list_add_tail(&spec_l2->list, rule_list_h); 1365 1366 return err; 1367 } 1368 1369 static int mlx4_en_ethtool_add_mac_rule_by_ipv4(struct mlx4_en_priv *priv, 1370 struct ethtool_rxnfc *cmd, 1371 struct list_head *rule_list_h, 1372 struct mlx4_spec_list *spec_l2, 1373 __be32 ipv4_dst) 1374 { 1375 #ifdef CONFIG_INET 1376 unsigned char mac[ETH_ALEN]; 1377 1378 if (!ipv4_is_multicast(ipv4_dst)) { 1379 if (cmd->fs.flow_type & FLOW_MAC_EXT) 1380 memcpy(&mac, cmd->fs.h_ext.h_dest, ETH_ALEN); 1381 else 1382 memcpy(&mac, priv->dev->dev_addr, ETH_ALEN); 1383 } else { 1384 ip_eth_mc_map(ipv4_dst, mac); 1385 } 1386 1387 return mlx4_en_ethtool_add_mac_rule(cmd, rule_list_h, spec_l2, &mac[0]); 1388 #else 1389 return -EINVAL; 1390 #endif 1391 } 1392 1393 static int add_ip_rule(struct mlx4_en_priv *priv, 1394 struct ethtool_rxnfc *cmd, 1395 struct list_head *list_h) 1396 { 1397 int err; 1398 struct mlx4_spec_list *spec_l2 = NULL; 1399 struct mlx4_spec_list *spec_l3 = NULL; 1400 struct ethtool_usrip4_spec *l3_mask = &cmd->fs.m_u.usr_ip4_spec; 1401 1402 spec_l3 = kzalloc(sizeof(*spec_l3), GFP_KERNEL); 1403 spec_l2 = kzalloc(sizeof(*spec_l2), GFP_KERNEL); 1404 if (!spec_l2 || !spec_l3) { 1405 err = -ENOMEM; 1406 goto free_spec; 1407 } 1408 1409 err = mlx4_en_ethtool_add_mac_rule_by_ipv4(priv, cmd, list_h, spec_l2, 1410 cmd->fs.h_u. 1411 usr_ip4_spec.ip4dst); 1412 if (err) 1413 goto free_spec; 1414 spec_l3->id = MLX4_NET_TRANS_RULE_ID_IPV4; 1415 spec_l3->ipv4.src_ip = cmd->fs.h_u.usr_ip4_spec.ip4src; 1416 if (l3_mask->ip4src) 1417 spec_l3->ipv4.src_ip_msk = EN_ETHTOOL_WORD_MASK; 1418 spec_l3->ipv4.dst_ip = cmd->fs.h_u.usr_ip4_spec.ip4dst; 1419 if (l3_mask->ip4dst) 1420 spec_l3->ipv4.dst_ip_msk = EN_ETHTOOL_WORD_MASK; 1421 list_add_tail(&spec_l3->list, list_h); 1422 1423 return 0; 1424 1425 free_spec: 1426 kfree(spec_l2); 1427 kfree(spec_l3); 1428 return err; 1429 } 1430 1431 static int add_tcp_udp_rule(struct mlx4_en_priv *priv, 1432 struct ethtool_rxnfc *cmd, 1433 struct list_head *list_h, int proto) 1434 { 1435 int err; 1436 struct mlx4_spec_list *spec_l2 = NULL; 1437 struct mlx4_spec_list *spec_l3 = NULL; 1438 struct mlx4_spec_list *spec_l4 = NULL; 1439 struct ethtool_tcpip4_spec *l4_mask = &cmd->fs.m_u.tcp_ip4_spec; 1440 1441 spec_l2 = kzalloc(sizeof(*spec_l2), GFP_KERNEL); 1442 spec_l3 = kzalloc(sizeof(*spec_l3), GFP_KERNEL); 1443 spec_l4 = kzalloc(sizeof(*spec_l4), GFP_KERNEL); 1444 if (!spec_l2 || !spec_l3 || !spec_l4) { 1445 err = -ENOMEM; 1446 goto free_spec; 1447 } 1448 1449 spec_l3->id = MLX4_NET_TRANS_RULE_ID_IPV4; 1450 1451 if (proto == TCP_V4_FLOW) { 1452 err = mlx4_en_ethtool_add_mac_rule_by_ipv4(priv, cmd, list_h, 1453 spec_l2, 1454 cmd->fs.h_u. 1455 tcp_ip4_spec.ip4dst); 1456 if (err) 1457 goto free_spec; 1458 spec_l4->id = MLX4_NET_TRANS_RULE_ID_TCP; 1459 spec_l3->ipv4.src_ip = cmd->fs.h_u.tcp_ip4_spec.ip4src; 1460 spec_l3->ipv4.dst_ip = cmd->fs.h_u.tcp_ip4_spec.ip4dst; 1461 spec_l4->tcp_udp.src_port = cmd->fs.h_u.tcp_ip4_spec.psrc; 1462 spec_l4->tcp_udp.dst_port = cmd->fs.h_u.tcp_ip4_spec.pdst; 1463 } else { 1464 err = mlx4_en_ethtool_add_mac_rule_by_ipv4(priv, cmd, list_h, 1465 spec_l2, 1466 cmd->fs.h_u. 1467 udp_ip4_spec.ip4dst); 1468 if (err) 1469 goto free_spec; 1470 spec_l4->id = MLX4_NET_TRANS_RULE_ID_UDP; 1471 spec_l3->ipv4.src_ip = cmd->fs.h_u.udp_ip4_spec.ip4src; 1472 spec_l3->ipv4.dst_ip = cmd->fs.h_u.udp_ip4_spec.ip4dst; 1473 spec_l4->tcp_udp.src_port = cmd->fs.h_u.udp_ip4_spec.psrc; 1474 spec_l4->tcp_udp.dst_port = cmd->fs.h_u.udp_ip4_spec.pdst; 1475 } 1476 1477 if (l4_mask->ip4src) 1478 spec_l3->ipv4.src_ip_msk = EN_ETHTOOL_WORD_MASK; 1479 if (l4_mask->ip4dst) 1480 spec_l3->ipv4.dst_ip_msk = EN_ETHTOOL_WORD_MASK; 1481 1482 if (l4_mask->psrc) 1483 spec_l4->tcp_udp.src_port_msk = EN_ETHTOOL_SHORT_MASK; 1484 if (l4_mask->pdst) 1485 spec_l4->tcp_udp.dst_port_msk = EN_ETHTOOL_SHORT_MASK; 1486 1487 list_add_tail(&spec_l3->list, list_h); 1488 list_add_tail(&spec_l4->list, list_h); 1489 1490 return 0; 1491 1492 free_spec: 1493 kfree(spec_l2); 1494 kfree(spec_l3); 1495 kfree(spec_l4); 1496 return err; 1497 } 1498 1499 static int mlx4_en_ethtool_to_net_trans_rule(struct net_device *dev, 1500 struct ethtool_rxnfc *cmd, 1501 struct list_head *rule_list_h) 1502 { 1503 int err; 1504 struct ethhdr *eth_spec; 1505 struct mlx4_spec_list *spec_l2; 1506 struct mlx4_en_priv *priv = netdev_priv(dev); 1507 1508 err = mlx4_en_validate_flow(dev, cmd); 1509 if (err) 1510 return err; 1511 1512 switch (cmd->fs.flow_type & ~(FLOW_EXT | FLOW_MAC_EXT)) { 1513 case ETHER_FLOW: 1514 spec_l2 = kzalloc(sizeof(*spec_l2), GFP_KERNEL); 1515 if (!spec_l2) 1516 return -ENOMEM; 1517 1518 eth_spec = &cmd->fs.h_u.ether_spec; 1519 mlx4_en_ethtool_add_mac_rule(cmd, rule_list_h, spec_l2, 1520 ð_spec->h_dest[0]); 1521 spec_l2->eth.ether_type = eth_spec->h_proto; 1522 if (eth_spec->h_proto) 1523 spec_l2->eth.ether_type_enable = 1; 1524 break; 1525 case IP_USER_FLOW: 1526 err = add_ip_rule(priv, cmd, rule_list_h); 1527 break; 1528 case TCP_V4_FLOW: 1529 err = add_tcp_udp_rule(priv, cmd, rule_list_h, TCP_V4_FLOW); 1530 break; 1531 case UDP_V4_FLOW: 1532 err = add_tcp_udp_rule(priv, cmd, rule_list_h, UDP_V4_FLOW); 1533 break; 1534 } 1535 1536 return err; 1537 } 1538 1539 static int mlx4_en_flow_replace(struct net_device *dev, 1540 struct ethtool_rxnfc *cmd) 1541 { 1542 int err; 1543 struct mlx4_en_priv *priv = netdev_priv(dev); 1544 struct ethtool_flow_id *loc_rule; 1545 struct mlx4_spec_list *spec, *tmp_spec; 1546 u32 qpn; 1547 u64 reg_id; 1548 1549 struct mlx4_net_trans_rule rule = { 1550 .queue_mode = MLX4_NET_TRANS_Q_FIFO, 1551 .exclusive = 0, 1552 .allow_loopback = 1, 1553 .promisc_mode = MLX4_FS_REGULAR, 1554 }; 1555 1556 rule.port = priv->port; 1557 rule.priority = MLX4_DOMAIN_ETHTOOL | cmd->fs.location; 1558 INIT_LIST_HEAD(&rule.list); 1559 1560 /* Allow direct QP attaches if the EN_ETHTOOL_QP_ATTACH flag is set */ 1561 if (cmd->fs.ring_cookie == RX_CLS_FLOW_DISC) 1562 qpn = priv->drop_qp.qpn; 1563 else if (cmd->fs.ring_cookie & EN_ETHTOOL_QP_ATTACH) { 1564 qpn = cmd->fs.ring_cookie & (EN_ETHTOOL_QP_ATTACH - 1); 1565 } else { 1566 if (cmd->fs.ring_cookie >= priv->rx_ring_num) { 1567 en_warn(priv, "rxnfc: RX ring (%llu) doesn't exist\n", 1568 cmd->fs.ring_cookie); 1569 return -EINVAL; 1570 } 1571 qpn = priv->rss_map.qps[cmd->fs.ring_cookie].qpn; 1572 if (!qpn) { 1573 en_warn(priv, "rxnfc: RX ring (%llu) is inactive\n", 1574 cmd->fs.ring_cookie); 1575 return -EINVAL; 1576 } 1577 } 1578 rule.qpn = qpn; 1579 err = mlx4_en_ethtool_to_net_trans_rule(dev, cmd, &rule.list); 1580 if (err) 1581 goto out_free_list; 1582 1583 loc_rule = &priv->ethtool_rules[cmd->fs.location]; 1584 if (loc_rule->id) { 1585 err = mlx4_flow_detach(priv->mdev->dev, loc_rule->id); 1586 if (err) { 1587 en_err(priv, "Fail to detach network rule at location %d. registration id = %llx\n", 1588 cmd->fs.location, loc_rule->id); 1589 goto out_free_list; 1590 } 1591 loc_rule->id = 0; 1592 memset(&loc_rule->flow_spec, 0, 1593 sizeof(struct ethtool_rx_flow_spec)); 1594 list_del(&loc_rule->list); 1595 } 1596 err = mlx4_flow_attach(priv->mdev->dev, &rule, ®_id); 1597 if (err) { 1598 en_err(priv, "Fail to attach network rule at location %d\n", 1599 cmd->fs.location); 1600 goto out_free_list; 1601 } 1602 loc_rule->id = reg_id; 1603 memcpy(&loc_rule->flow_spec, &cmd->fs, 1604 sizeof(struct ethtool_rx_flow_spec)); 1605 list_add_tail(&loc_rule->list, &priv->ethtool_list); 1606 1607 out_free_list: 1608 list_for_each_entry_safe(spec, tmp_spec, &rule.list, list) { 1609 list_del(&spec->list); 1610 kfree(spec); 1611 } 1612 return err; 1613 } 1614 1615 static int mlx4_en_flow_detach(struct net_device *dev, 1616 struct ethtool_rxnfc *cmd) 1617 { 1618 int err = 0; 1619 struct ethtool_flow_id *rule; 1620 struct mlx4_en_priv *priv = netdev_priv(dev); 1621 1622 if (cmd->fs.location >= MAX_NUM_OF_FS_RULES) 1623 return -EINVAL; 1624 1625 rule = &priv->ethtool_rules[cmd->fs.location]; 1626 if (!rule->id) { 1627 err = -ENOENT; 1628 goto out; 1629 } 1630 1631 err = mlx4_flow_detach(priv->mdev->dev, rule->id); 1632 if (err) { 1633 en_err(priv, "Fail to detach network rule at location %d. registration id = 0x%llx\n", 1634 cmd->fs.location, rule->id); 1635 goto out; 1636 } 1637 rule->id = 0; 1638 memset(&rule->flow_spec, 0, sizeof(struct ethtool_rx_flow_spec)); 1639 list_del(&rule->list); 1640 out: 1641 return err; 1642 1643 } 1644 1645 static int mlx4_en_get_flow(struct net_device *dev, struct ethtool_rxnfc *cmd, 1646 int loc) 1647 { 1648 int err = 0; 1649 struct ethtool_flow_id *rule; 1650 struct mlx4_en_priv *priv = netdev_priv(dev); 1651 1652 if (loc < 0 || loc >= MAX_NUM_OF_FS_RULES) 1653 return -EINVAL; 1654 1655 rule = &priv->ethtool_rules[loc]; 1656 if (rule->id) 1657 memcpy(&cmd->fs, &rule->flow_spec, 1658 sizeof(struct ethtool_rx_flow_spec)); 1659 else 1660 err = -ENOENT; 1661 1662 return err; 1663 } 1664 1665 static int mlx4_en_get_num_flows(struct mlx4_en_priv *priv) 1666 { 1667 1668 int i, res = 0; 1669 for (i = 0; i < MAX_NUM_OF_FS_RULES; i++) { 1670 if (priv->ethtool_rules[i].id) 1671 res++; 1672 } 1673 return res; 1674 1675 } 1676 1677 static int mlx4_en_get_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd, 1678 u32 *rule_locs) 1679 { 1680 struct mlx4_en_priv *priv = netdev_priv(dev); 1681 struct mlx4_en_dev *mdev = priv->mdev; 1682 int err = 0; 1683 int i = 0, priority = 0; 1684 1685 if ((cmd->cmd == ETHTOOL_GRXCLSRLCNT || 1686 cmd->cmd == ETHTOOL_GRXCLSRULE || 1687 cmd->cmd == ETHTOOL_GRXCLSRLALL) && 1688 (mdev->dev->caps.steering_mode != 1689 MLX4_STEERING_MODE_DEVICE_MANAGED || !priv->port_up)) 1690 return -EINVAL; 1691 1692 switch (cmd->cmd) { 1693 case ETHTOOL_GRXRINGS: 1694 cmd->data = priv->rx_ring_num; 1695 break; 1696 case ETHTOOL_GRXCLSRLCNT: 1697 cmd->rule_cnt = mlx4_en_get_num_flows(priv); 1698 break; 1699 case ETHTOOL_GRXCLSRULE: 1700 err = mlx4_en_get_flow(dev, cmd, cmd->fs.location); 1701 break; 1702 case ETHTOOL_GRXCLSRLALL: 1703 while ((!err || err == -ENOENT) && priority < cmd->rule_cnt) { 1704 err = mlx4_en_get_flow(dev, cmd, i); 1705 if (!err) 1706 rule_locs[priority++] = i; 1707 i++; 1708 } 1709 err = 0; 1710 break; 1711 default: 1712 err = -EOPNOTSUPP; 1713 break; 1714 } 1715 1716 return err; 1717 } 1718 1719 static int mlx4_en_set_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd) 1720 { 1721 int err = 0; 1722 struct mlx4_en_priv *priv = netdev_priv(dev); 1723 struct mlx4_en_dev *mdev = priv->mdev; 1724 1725 if (mdev->dev->caps.steering_mode != 1726 MLX4_STEERING_MODE_DEVICE_MANAGED || !priv->port_up) 1727 return -EINVAL; 1728 1729 switch (cmd->cmd) { 1730 case ETHTOOL_SRXCLSRLINS: 1731 err = mlx4_en_flow_replace(dev, cmd); 1732 break; 1733 case ETHTOOL_SRXCLSRLDEL: 1734 err = mlx4_en_flow_detach(dev, cmd); 1735 break; 1736 default: 1737 en_warn(priv, "Unsupported ethtool command. (%d)\n", cmd->cmd); 1738 return -EINVAL; 1739 } 1740 1741 return err; 1742 } 1743 1744 static void mlx4_en_get_channels(struct net_device *dev, 1745 struct ethtool_channels *channel) 1746 { 1747 struct mlx4_en_priv *priv = netdev_priv(dev); 1748 1749 channel->max_rx = MAX_RX_RINGS; 1750 channel->max_tx = MLX4_EN_MAX_TX_RING_P_UP; 1751 1752 channel->rx_count = priv->rx_ring_num; 1753 channel->tx_count = priv->tx_ring_num[TX] / MLX4_EN_NUM_UP; 1754 } 1755 1756 static int mlx4_en_set_channels(struct net_device *dev, 1757 struct ethtool_channels *channel) 1758 { 1759 struct mlx4_en_priv *priv = netdev_priv(dev); 1760 struct mlx4_en_dev *mdev = priv->mdev; 1761 struct mlx4_en_port_profile new_prof; 1762 struct mlx4_en_priv *tmp; 1763 int port_up = 0; 1764 int xdp_count; 1765 int err = 0; 1766 1767 if (!channel->tx_count || !channel->rx_count) 1768 return -EINVAL; 1769 1770 tmp = kzalloc(sizeof(*tmp), GFP_KERNEL); 1771 if (!tmp) 1772 return -ENOMEM; 1773 1774 mutex_lock(&mdev->state_lock); 1775 xdp_count = priv->tx_ring_num[TX_XDP] ? channel->rx_count : 0; 1776 if (channel->tx_count * MLX4_EN_NUM_UP + xdp_count > MAX_TX_RINGS) { 1777 err = -EINVAL; 1778 en_err(priv, 1779 "Total number of TX and XDP rings (%d) exceeds the maximum supported (%d)\n", 1780 channel->tx_count * MLX4_EN_NUM_UP + xdp_count, 1781 MAX_TX_RINGS); 1782 goto out; 1783 } 1784 1785 memcpy(&new_prof, priv->prof, sizeof(struct mlx4_en_port_profile)); 1786 new_prof.num_tx_rings_p_up = channel->tx_count; 1787 new_prof.tx_ring_num[TX] = channel->tx_count * MLX4_EN_NUM_UP; 1788 new_prof.tx_ring_num[TX_XDP] = xdp_count; 1789 new_prof.rx_ring_num = channel->rx_count; 1790 1791 err = mlx4_en_try_alloc_resources(priv, tmp, &new_prof, true); 1792 if (err) 1793 goto out; 1794 1795 if (priv->port_up) { 1796 port_up = 1; 1797 mlx4_en_stop_port(dev, 1); 1798 } 1799 1800 mlx4_en_safe_replace_resources(priv, tmp); 1801 1802 netif_set_real_num_tx_queues(dev, priv->tx_ring_num[TX]); 1803 netif_set_real_num_rx_queues(dev, priv->rx_ring_num); 1804 1805 if (netdev_get_num_tc(dev)) 1806 mlx4_en_setup_tc(dev, MLX4_EN_NUM_UP); 1807 1808 en_warn(priv, "Using %d TX rings\n", priv->tx_ring_num[TX]); 1809 en_warn(priv, "Using %d RX rings\n", priv->rx_ring_num); 1810 1811 if (port_up) { 1812 err = mlx4_en_start_port(dev); 1813 if (err) 1814 en_err(priv, "Failed starting port\n"); 1815 } 1816 1817 err = mlx4_en_moderation_update(priv); 1818 out: 1819 mutex_unlock(&mdev->state_lock); 1820 kfree(tmp); 1821 return err; 1822 } 1823 1824 static int mlx4_en_get_ts_info(struct net_device *dev, 1825 struct ethtool_ts_info *info) 1826 { 1827 struct mlx4_en_priv *priv = netdev_priv(dev); 1828 struct mlx4_en_dev *mdev = priv->mdev; 1829 int ret; 1830 1831 ret = ethtool_op_get_ts_info(dev, info); 1832 if (ret) 1833 return ret; 1834 1835 if (mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_TS) { 1836 info->so_timestamping |= 1837 SOF_TIMESTAMPING_TX_HARDWARE | 1838 SOF_TIMESTAMPING_RX_HARDWARE | 1839 SOF_TIMESTAMPING_RAW_HARDWARE; 1840 1841 info->tx_types = 1842 (1 << HWTSTAMP_TX_OFF) | 1843 (1 << HWTSTAMP_TX_ON); 1844 1845 info->rx_filters = 1846 (1 << HWTSTAMP_FILTER_NONE) | 1847 (1 << HWTSTAMP_FILTER_ALL); 1848 1849 if (mdev->ptp_clock) 1850 info->phc_index = ptp_clock_index(mdev->ptp_clock); 1851 } 1852 1853 return ret; 1854 } 1855 1856 static int mlx4_en_set_priv_flags(struct net_device *dev, u32 flags) 1857 { 1858 struct mlx4_en_priv *priv = netdev_priv(dev); 1859 struct mlx4_en_dev *mdev = priv->mdev; 1860 bool bf_enabled_new = !!(flags & MLX4_EN_PRIV_FLAGS_BLUEFLAME); 1861 bool bf_enabled_old = !!(priv->pflags & MLX4_EN_PRIV_FLAGS_BLUEFLAME); 1862 bool phv_enabled_new = !!(flags & MLX4_EN_PRIV_FLAGS_PHV); 1863 bool phv_enabled_old = !!(priv->pflags & MLX4_EN_PRIV_FLAGS_PHV); 1864 int i; 1865 int ret = 0; 1866 1867 if (bf_enabled_new != bf_enabled_old) { 1868 int t; 1869 1870 if (bf_enabled_new) { 1871 bool bf_supported = true; 1872 1873 for (t = 0; t < MLX4_EN_NUM_TX_TYPES; t++) 1874 for (i = 0; i < priv->tx_ring_num[t]; i++) 1875 bf_supported &= 1876 priv->tx_ring[t][i]->bf_alloced; 1877 1878 if (!bf_supported) { 1879 en_err(priv, "BlueFlame is not supported\n"); 1880 return -EINVAL; 1881 } 1882 1883 priv->pflags |= MLX4_EN_PRIV_FLAGS_BLUEFLAME; 1884 } else { 1885 priv->pflags &= ~MLX4_EN_PRIV_FLAGS_BLUEFLAME; 1886 } 1887 1888 for (t = 0; t < MLX4_EN_NUM_TX_TYPES; t++) 1889 for (i = 0; i < priv->tx_ring_num[t]; i++) 1890 priv->tx_ring[t][i]->bf_enabled = 1891 bf_enabled_new; 1892 1893 en_info(priv, "BlueFlame %s\n", 1894 bf_enabled_new ? "Enabled" : "Disabled"); 1895 } 1896 1897 if (phv_enabled_new != phv_enabled_old) { 1898 ret = set_phv_bit(mdev->dev, priv->port, (int)phv_enabled_new); 1899 if (ret) 1900 return ret; 1901 else if (phv_enabled_new) 1902 priv->pflags |= MLX4_EN_PRIV_FLAGS_PHV; 1903 else 1904 priv->pflags &= ~MLX4_EN_PRIV_FLAGS_PHV; 1905 en_info(priv, "PHV bit %s\n", 1906 phv_enabled_new ? "Enabled" : "Disabled"); 1907 } 1908 return 0; 1909 } 1910 1911 static u32 mlx4_en_get_priv_flags(struct net_device *dev) 1912 { 1913 struct mlx4_en_priv *priv = netdev_priv(dev); 1914 1915 return priv->pflags; 1916 } 1917 1918 static int mlx4_en_get_tunable(struct net_device *dev, 1919 const struct ethtool_tunable *tuna, 1920 void *data) 1921 { 1922 const struct mlx4_en_priv *priv = netdev_priv(dev); 1923 int ret = 0; 1924 1925 switch (tuna->id) { 1926 case ETHTOOL_TX_COPYBREAK: 1927 *(u32 *)data = priv->prof->inline_thold; 1928 break; 1929 default: 1930 ret = -EINVAL; 1931 break; 1932 } 1933 1934 return ret; 1935 } 1936 1937 static int mlx4_en_set_tunable(struct net_device *dev, 1938 const struct ethtool_tunable *tuna, 1939 const void *data) 1940 { 1941 struct mlx4_en_priv *priv = netdev_priv(dev); 1942 int val, ret = 0; 1943 1944 switch (tuna->id) { 1945 case ETHTOOL_TX_COPYBREAK: 1946 val = *(u32 *)data; 1947 if (val < MIN_PKT_LEN || val > MAX_INLINE) 1948 ret = -EINVAL; 1949 else 1950 priv->prof->inline_thold = val; 1951 break; 1952 default: 1953 ret = -EINVAL; 1954 break; 1955 } 1956 1957 return ret; 1958 } 1959 1960 static int mlx4_en_get_module_info(struct net_device *dev, 1961 struct ethtool_modinfo *modinfo) 1962 { 1963 struct mlx4_en_priv *priv = netdev_priv(dev); 1964 struct mlx4_en_dev *mdev = priv->mdev; 1965 int ret; 1966 u8 data[4]; 1967 1968 /* Read first 2 bytes to get Module & REV ID */ 1969 ret = mlx4_get_module_info(mdev->dev, priv->port, 1970 0/*offset*/, 2/*size*/, data); 1971 if (ret < 2) 1972 return -EIO; 1973 1974 switch (data[0] /* identifier */) { 1975 case MLX4_MODULE_ID_QSFP: 1976 modinfo->type = ETH_MODULE_SFF_8436; 1977 modinfo->eeprom_len = ETH_MODULE_SFF_8436_LEN; 1978 break; 1979 case MLX4_MODULE_ID_QSFP_PLUS: 1980 if (data[1] >= 0x3) { /* revision id */ 1981 modinfo->type = ETH_MODULE_SFF_8636; 1982 modinfo->eeprom_len = ETH_MODULE_SFF_8636_LEN; 1983 } else { 1984 modinfo->type = ETH_MODULE_SFF_8436; 1985 modinfo->eeprom_len = ETH_MODULE_SFF_8436_LEN; 1986 } 1987 break; 1988 case MLX4_MODULE_ID_QSFP28: 1989 modinfo->type = ETH_MODULE_SFF_8636; 1990 modinfo->eeprom_len = ETH_MODULE_SFF_8636_LEN; 1991 break; 1992 case MLX4_MODULE_ID_SFP: 1993 modinfo->type = ETH_MODULE_SFF_8472; 1994 modinfo->eeprom_len = ETH_MODULE_SFF_8472_LEN; 1995 break; 1996 default: 1997 return -EINVAL; 1998 } 1999 2000 return 0; 2001 } 2002 2003 static int mlx4_en_get_module_eeprom(struct net_device *dev, 2004 struct ethtool_eeprom *ee, 2005 u8 *data) 2006 { 2007 struct mlx4_en_priv *priv = netdev_priv(dev); 2008 struct mlx4_en_dev *mdev = priv->mdev; 2009 int offset = ee->offset; 2010 int i = 0, ret; 2011 2012 if (ee->len == 0) 2013 return -EINVAL; 2014 2015 memset(data, 0, ee->len); 2016 2017 while (i < ee->len) { 2018 en_dbg(DRV, priv, 2019 "mlx4_get_module_info i(%d) offset(%d) len(%d)\n", 2020 i, offset, ee->len - i); 2021 2022 ret = mlx4_get_module_info(mdev->dev, priv->port, 2023 offset, ee->len - i, data + i); 2024 2025 if (!ret) /* Done reading */ 2026 return 0; 2027 2028 if (ret < 0) { 2029 en_err(priv, 2030 "mlx4_get_module_info i(%d) offset(%d) bytes_to_read(%d) - FAILED (0x%x)\n", 2031 i, offset, ee->len - i, ret); 2032 return 0; 2033 } 2034 2035 i += ret; 2036 offset += ret; 2037 } 2038 return 0; 2039 } 2040 2041 static int mlx4_en_set_phys_id(struct net_device *dev, 2042 enum ethtool_phys_id_state state) 2043 { 2044 int err; 2045 u16 beacon_duration; 2046 struct mlx4_en_priv *priv = netdev_priv(dev); 2047 struct mlx4_en_dev *mdev = priv->mdev; 2048 2049 if (!(mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_PORT_BEACON)) 2050 return -EOPNOTSUPP; 2051 2052 switch (state) { 2053 case ETHTOOL_ID_ACTIVE: 2054 beacon_duration = PORT_BEACON_MAX_LIMIT; 2055 break; 2056 case ETHTOOL_ID_INACTIVE: 2057 beacon_duration = 0; 2058 break; 2059 default: 2060 return -EOPNOTSUPP; 2061 } 2062 2063 err = mlx4_SET_PORT_BEACON(mdev->dev, priv->port, beacon_duration); 2064 return err; 2065 } 2066 2067 const struct ethtool_ops mlx4_en_ethtool_ops = { 2068 .get_drvinfo = mlx4_en_get_drvinfo, 2069 .get_link_ksettings = mlx4_en_get_link_ksettings, 2070 .set_link_ksettings = mlx4_en_set_link_ksettings, 2071 .get_link = ethtool_op_get_link, 2072 .get_strings = mlx4_en_get_strings, 2073 .get_sset_count = mlx4_en_get_sset_count, 2074 .get_ethtool_stats = mlx4_en_get_ethtool_stats, 2075 .self_test = mlx4_en_self_test, 2076 .set_phys_id = mlx4_en_set_phys_id, 2077 .get_wol = mlx4_en_get_wol, 2078 .set_wol = mlx4_en_set_wol, 2079 .get_msglevel = mlx4_en_get_msglevel, 2080 .set_msglevel = mlx4_en_set_msglevel, 2081 .get_coalesce = mlx4_en_get_coalesce, 2082 .set_coalesce = mlx4_en_set_coalesce, 2083 .get_pauseparam = mlx4_en_get_pauseparam, 2084 .set_pauseparam = mlx4_en_set_pauseparam, 2085 .get_ringparam = mlx4_en_get_ringparam, 2086 .set_ringparam = mlx4_en_set_ringparam, 2087 .get_rxnfc = mlx4_en_get_rxnfc, 2088 .set_rxnfc = mlx4_en_set_rxnfc, 2089 .get_rxfh_indir_size = mlx4_en_get_rxfh_indir_size, 2090 .get_rxfh_key_size = mlx4_en_get_rxfh_key_size, 2091 .get_rxfh = mlx4_en_get_rxfh, 2092 .set_rxfh = mlx4_en_set_rxfh, 2093 .get_channels = mlx4_en_get_channels, 2094 .set_channels = mlx4_en_set_channels, 2095 .get_ts_info = mlx4_en_get_ts_info, 2096 .set_priv_flags = mlx4_en_set_priv_flags, 2097 .get_priv_flags = mlx4_en_get_priv_flags, 2098 .get_tunable = mlx4_en_get_tunable, 2099 .set_tunable = mlx4_en_set_tunable, 2100 .get_module_info = mlx4_en_get_module_info, 2101 .get_module_eeprom = mlx4_en_get_module_eeprom 2102 }; 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