1 // SPDX-License-Identifier: GPL-2.0 2 /* Copyright(c) 1999 - 2018 Intel Corporation. */ 3 4 /* ethtool support for ixgbevf */ 5 6 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt 7 8 #include <linux/types.h> 9 #include <linux/module.h> 10 #include <linux/slab.h> 11 #include <linux/pci.h> 12 #include <linux/netdevice.h> 13 #include <linux/ethtool.h> 14 #include <linux/vmalloc.h> 15 #include <linux/if_vlan.h> 16 #include <linux/uaccess.h> 17 18 #include "ixgbevf.h" 19 20 enum {NETDEV_STATS, IXGBEVF_STATS}; 21 22 struct ixgbe_stats { 23 char stat_string[ETH_GSTRING_LEN]; 24 int type; 25 int sizeof_stat; 26 int stat_offset; 27 }; 28 29 #define IXGBEVF_STAT(_name, _stat) { \ 30 .stat_string = _name, \ 31 .type = IXGBEVF_STATS, \ 32 .sizeof_stat = sizeof_field(struct ixgbevf_adapter, _stat), \ 33 .stat_offset = offsetof(struct ixgbevf_adapter, _stat) \ 34 } 35 36 #define IXGBEVF_NETDEV_STAT(_net_stat) { \ 37 .stat_string = #_net_stat, \ 38 .type = NETDEV_STATS, \ 39 .sizeof_stat = sizeof_field(struct net_device_stats, _net_stat), \ 40 .stat_offset = offsetof(struct net_device_stats, _net_stat) \ 41 } 42 43 static struct ixgbe_stats ixgbevf_gstrings_stats[] = { 44 IXGBEVF_NETDEV_STAT(rx_packets), 45 IXGBEVF_NETDEV_STAT(tx_packets), 46 IXGBEVF_NETDEV_STAT(rx_bytes), 47 IXGBEVF_NETDEV_STAT(tx_bytes), 48 IXGBEVF_STAT("tx_busy", tx_busy), 49 IXGBEVF_STAT("tx_restart_queue", restart_queue), 50 IXGBEVF_STAT("tx_timeout_count", tx_timeout_count), 51 IXGBEVF_NETDEV_STAT(multicast), 52 IXGBEVF_STAT("rx_csum_offload_errors", hw_csum_rx_error), 53 IXGBEVF_STAT("alloc_rx_page", alloc_rx_page), 54 IXGBEVF_STAT("alloc_rx_page_failed", alloc_rx_page_failed), 55 IXGBEVF_STAT("alloc_rx_buff_failed", alloc_rx_buff_failed), 56 IXGBEVF_STAT("tx_ipsec", tx_ipsec), 57 IXGBEVF_STAT("rx_ipsec", rx_ipsec), 58 }; 59 60 #define IXGBEVF_QUEUE_STATS_LEN ( \ 61 (((struct ixgbevf_adapter *)netdev_priv(netdev))->num_tx_queues + \ 62 ((struct ixgbevf_adapter *)netdev_priv(netdev))->num_xdp_queues + \ 63 ((struct ixgbevf_adapter *)netdev_priv(netdev))->num_rx_queues) * \ 64 (sizeof(struct ixgbevf_stats) / sizeof(u64))) 65 #define IXGBEVF_GLOBAL_STATS_LEN ARRAY_SIZE(ixgbevf_gstrings_stats) 66 67 #define IXGBEVF_STATS_LEN (IXGBEVF_GLOBAL_STATS_LEN + IXGBEVF_QUEUE_STATS_LEN) 68 static const char ixgbe_gstrings_test[][ETH_GSTRING_LEN] = { 69 "Register test (offline)", 70 "Link test (on/offline)" 71 }; 72 73 #define IXGBEVF_TEST_LEN (sizeof(ixgbe_gstrings_test) / ETH_GSTRING_LEN) 74 75 static const char ixgbevf_priv_flags_strings[][ETH_GSTRING_LEN] = { 76 #define IXGBEVF_PRIV_FLAGS_LEGACY_RX BIT(0) 77 "legacy-rx", 78 }; 79 80 #define IXGBEVF_PRIV_FLAGS_STR_LEN ARRAY_SIZE(ixgbevf_priv_flags_strings) 81 82 static int ixgbevf_get_link_ksettings(struct net_device *netdev, 83 struct ethtool_link_ksettings *cmd) 84 { 85 struct ixgbevf_adapter *adapter = netdev_priv(netdev); 86 87 ethtool_link_ksettings_zero_link_mode(cmd, supported); 88 ethtool_link_ksettings_add_link_mode(cmd, supported, 10000baseT_Full); 89 cmd->base.autoneg = AUTONEG_DISABLE; 90 cmd->base.port = -1; 91 92 if (adapter->link_up) { 93 __u32 speed = SPEED_10000; 94 95 switch (adapter->link_speed) { 96 case IXGBE_LINK_SPEED_10GB_FULL: 97 speed = SPEED_10000; 98 break; 99 case IXGBE_LINK_SPEED_1GB_FULL: 100 speed = SPEED_1000; 101 break; 102 case IXGBE_LINK_SPEED_100_FULL: 103 speed = SPEED_100; 104 break; 105 } 106 107 cmd->base.speed = speed; 108 cmd->base.duplex = DUPLEX_FULL; 109 } else { 110 cmd->base.speed = SPEED_UNKNOWN; 111 cmd->base.duplex = DUPLEX_UNKNOWN; 112 } 113 114 return 0; 115 } 116 117 static u32 ixgbevf_get_msglevel(struct net_device *netdev) 118 { 119 struct ixgbevf_adapter *adapter = netdev_priv(netdev); 120 121 return adapter->msg_enable; 122 } 123 124 static void ixgbevf_set_msglevel(struct net_device *netdev, u32 data) 125 { 126 struct ixgbevf_adapter *adapter = netdev_priv(netdev); 127 128 adapter->msg_enable = data; 129 } 130 131 static int ixgbevf_get_regs_len(struct net_device *netdev) 132 { 133 #define IXGBE_REGS_LEN 45 134 return IXGBE_REGS_LEN * sizeof(u32); 135 } 136 137 static void ixgbevf_get_regs(struct net_device *netdev, 138 struct ethtool_regs *regs, 139 void *p) 140 { 141 struct ixgbevf_adapter *adapter = netdev_priv(netdev); 142 struct ixgbe_hw *hw = &adapter->hw; 143 u32 *regs_buff = p; 144 u32 regs_len = ixgbevf_get_regs_len(netdev); 145 u8 i; 146 147 memset(p, 0, regs_len); 148 149 /* generate a number suitable for ethtool's register version */ 150 regs->version = (1u << 24) | (hw->revision_id << 16) | hw->device_id; 151 152 /* General Registers */ 153 regs_buff[0] = IXGBE_READ_REG(hw, IXGBE_VFCTRL); 154 regs_buff[1] = IXGBE_READ_REG(hw, IXGBE_VFSTATUS); 155 regs_buff[2] = IXGBE_READ_REG(hw, IXGBE_VFLINKS); 156 regs_buff[3] = IXGBE_READ_REG(hw, IXGBE_VFRXMEMWRAP); 157 regs_buff[4] = IXGBE_READ_REG(hw, IXGBE_VFFRTIMER); 158 159 /* Interrupt */ 160 /* don't read EICR because it can clear interrupt causes, instead 161 * read EICS which is a shadow but doesn't clear EICR 162 */ 163 regs_buff[5] = IXGBE_READ_REG(hw, IXGBE_VTEICS); 164 regs_buff[6] = IXGBE_READ_REG(hw, IXGBE_VTEICS); 165 regs_buff[7] = IXGBE_READ_REG(hw, IXGBE_VTEIMS); 166 regs_buff[8] = IXGBE_READ_REG(hw, IXGBE_VTEIMC); 167 regs_buff[9] = IXGBE_READ_REG(hw, IXGBE_VTEIAC); 168 regs_buff[10] = IXGBE_READ_REG(hw, IXGBE_VTEIAM); 169 regs_buff[11] = IXGBE_READ_REG(hw, IXGBE_VTEITR(0)); 170 regs_buff[12] = IXGBE_READ_REG(hw, IXGBE_VTIVAR(0)); 171 regs_buff[13] = IXGBE_READ_REG(hw, IXGBE_VTIVAR_MISC); 172 173 /* Receive DMA */ 174 for (i = 0; i < 2; i++) 175 regs_buff[14 + i] = IXGBE_READ_REG(hw, IXGBE_VFRDBAL(i)); 176 for (i = 0; i < 2; i++) 177 regs_buff[16 + i] = IXGBE_READ_REG(hw, IXGBE_VFRDBAH(i)); 178 for (i = 0; i < 2; i++) 179 regs_buff[18 + i] = IXGBE_READ_REG(hw, IXGBE_VFRDLEN(i)); 180 for (i = 0; i < 2; i++) 181 regs_buff[20 + i] = IXGBE_READ_REG(hw, IXGBE_VFRDH(i)); 182 for (i = 0; i < 2; i++) 183 regs_buff[22 + i] = IXGBE_READ_REG(hw, IXGBE_VFRDT(i)); 184 for (i = 0; i < 2; i++) 185 regs_buff[24 + i] = IXGBE_READ_REG(hw, IXGBE_VFRXDCTL(i)); 186 for (i = 0; i < 2; i++) 187 regs_buff[26 + i] = IXGBE_READ_REG(hw, IXGBE_VFSRRCTL(i)); 188 189 /* Receive */ 190 regs_buff[28] = IXGBE_READ_REG(hw, IXGBE_VFPSRTYPE); 191 192 /* Transmit */ 193 for (i = 0; i < 2; i++) 194 regs_buff[29 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDBAL(i)); 195 for (i = 0; i < 2; i++) 196 regs_buff[31 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDBAH(i)); 197 for (i = 0; i < 2; i++) 198 regs_buff[33 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDLEN(i)); 199 for (i = 0; i < 2; i++) 200 regs_buff[35 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDH(i)); 201 for (i = 0; i < 2; i++) 202 regs_buff[37 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDT(i)); 203 for (i = 0; i < 2; i++) 204 regs_buff[39 + i] = IXGBE_READ_REG(hw, IXGBE_VFTXDCTL(i)); 205 for (i = 0; i < 2; i++) 206 regs_buff[41 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDWBAL(i)); 207 for (i = 0; i < 2; i++) 208 regs_buff[43 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDWBAH(i)); 209 } 210 211 static void ixgbevf_get_drvinfo(struct net_device *netdev, 212 struct ethtool_drvinfo *drvinfo) 213 { 214 struct ixgbevf_adapter *adapter = netdev_priv(netdev); 215 216 strscpy(drvinfo->driver, ixgbevf_driver_name, sizeof(drvinfo->driver)); 217 strscpy(drvinfo->bus_info, pci_name(adapter->pdev), 218 sizeof(drvinfo->bus_info)); 219 220 drvinfo->n_priv_flags = IXGBEVF_PRIV_FLAGS_STR_LEN; 221 } 222 223 static void ixgbevf_get_ringparam(struct net_device *netdev, 224 struct ethtool_ringparam *ring, 225 struct kernel_ethtool_ringparam *kernel_ring, 226 struct netlink_ext_ack *extack) 227 { 228 struct ixgbevf_adapter *adapter = netdev_priv(netdev); 229 230 ring->rx_max_pending = IXGBEVF_MAX_RXD; 231 ring->tx_max_pending = IXGBEVF_MAX_TXD; 232 ring->rx_pending = adapter->rx_ring_count; 233 ring->tx_pending = adapter->tx_ring_count; 234 } 235 236 static int ixgbevf_set_ringparam(struct net_device *netdev, 237 struct ethtool_ringparam *ring, 238 struct kernel_ethtool_ringparam *kernel_ring, 239 struct netlink_ext_ack *extack) 240 { 241 struct ixgbevf_adapter *adapter = netdev_priv(netdev); 242 struct ixgbevf_ring *tx_ring = NULL, *rx_ring = NULL; 243 u32 new_rx_count, new_tx_count; 244 int i, j, err = 0; 245 246 if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending)) 247 return -EINVAL; 248 249 new_tx_count = max_t(u32, ring->tx_pending, IXGBEVF_MIN_TXD); 250 new_tx_count = min_t(u32, new_tx_count, IXGBEVF_MAX_TXD); 251 new_tx_count = ALIGN(new_tx_count, IXGBE_REQ_TX_DESCRIPTOR_MULTIPLE); 252 253 new_rx_count = max_t(u32, ring->rx_pending, IXGBEVF_MIN_RXD); 254 new_rx_count = min_t(u32, new_rx_count, IXGBEVF_MAX_RXD); 255 new_rx_count = ALIGN(new_rx_count, IXGBE_REQ_RX_DESCRIPTOR_MULTIPLE); 256 257 /* if nothing to do return success */ 258 if ((new_tx_count == adapter->tx_ring_count) && 259 (new_rx_count == adapter->rx_ring_count)) 260 return 0; 261 262 while (test_and_set_bit(__IXGBEVF_RESETTING, &adapter->state)) 263 usleep_range(1000, 2000); 264 265 if (!netif_running(adapter->netdev)) { 266 for (i = 0; i < adapter->num_tx_queues; i++) 267 adapter->tx_ring[i]->count = new_tx_count; 268 for (i = 0; i < adapter->num_xdp_queues; i++) 269 adapter->xdp_ring[i]->count = new_tx_count; 270 for (i = 0; i < adapter->num_rx_queues; i++) 271 adapter->rx_ring[i]->count = new_rx_count; 272 adapter->tx_ring_count = new_tx_count; 273 adapter->xdp_ring_count = new_tx_count; 274 adapter->rx_ring_count = new_rx_count; 275 goto clear_reset; 276 } 277 278 if (new_tx_count != adapter->tx_ring_count) { 279 tx_ring = vmalloc(array_size(sizeof(*tx_ring), 280 adapter->num_tx_queues + 281 adapter->num_xdp_queues)); 282 if (!tx_ring) { 283 err = -ENOMEM; 284 goto clear_reset; 285 } 286 287 for (i = 0; i < adapter->num_tx_queues; i++) { 288 /* clone ring and setup updated count */ 289 tx_ring[i] = *adapter->tx_ring[i]; 290 tx_ring[i].count = new_tx_count; 291 err = ixgbevf_setup_tx_resources(&tx_ring[i]); 292 if (err) { 293 while (i) { 294 i--; 295 ixgbevf_free_tx_resources(&tx_ring[i]); 296 } 297 298 vfree(tx_ring); 299 tx_ring = NULL; 300 301 goto clear_reset; 302 } 303 } 304 305 for (j = 0; j < adapter->num_xdp_queues; i++, j++) { 306 /* clone ring and setup updated count */ 307 tx_ring[i] = *adapter->xdp_ring[j]; 308 tx_ring[i].count = new_tx_count; 309 err = ixgbevf_setup_tx_resources(&tx_ring[i]); 310 if (err) { 311 while (i) { 312 i--; 313 ixgbevf_free_tx_resources(&tx_ring[i]); 314 } 315 316 vfree(tx_ring); 317 tx_ring = NULL; 318 319 goto clear_reset; 320 } 321 } 322 } 323 324 if (new_rx_count != adapter->rx_ring_count) { 325 rx_ring = vmalloc(array_size(sizeof(*rx_ring), 326 adapter->num_rx_queues)); 327 if (!rx_ring) { 328 err = -ENOMEM; 329 goto clear_reset; 330 } 331 332 for (i = 0; i < adapter->num_rx_queues; i++) { 333 /* clone ring and setup updated count */ 334 rx_ring[i] = *adapter->rx_ring[i]; 335 336 /* Clear copied XDP RX-queue info */ 337 memset(&rx_ring[i].xdp_rxq, 0, 338 sizeof(rx_ring[i].xdp_rxq)); 339 340 rx_ring[i].count = new_rx_count; 341 err = ixgbevf_setup_rx_resources(adapter, &rx_ring[i]); 342 if (err) { 343 while (i) { 344 i--; 345 ixgbevf_free_rx_resources(&rx_ring[i]); 346 } 347 348 vfree(rx_ring); 349 rx_ring = NULL; 350 351 goto clear_reset; 352 } 353 } 354 } 355 356 /* bring interface down to prepare for update */ 357 ixgbevf_down(adapter); 358 359 /* Tx */ 360 if (tx_ring) { 361 for (i = 0; i < adapter->num_tx_queues; i++) { 362 ixgbevf_free_tx_resources(adapter->tx_ring[i]); 363 *adapter->tx_ring[i] = tx_ring[i]; 364 } 365 adapter->tx_ring_count = new_tx_count; 366 367 for (j = 0; j < adapter->num_xdp_queues; i++, j++) { 368 ixgbevf_free_tx_resources(adapter->xdp_ring[j]); 369 *adapter->xdp_ring[j] = tx_ring[i]; 370 } 371 adapter->xdp_ring_count = new_tx_count; 372 373 vfree(tx_ring); 374 tx_ring = NULL; 375 } 376 377 /* Rx */ 378 if (rx_ring) { 379 for (i = 0; i < adapter->num_rx_queues; i++) { 380 ixgbevf_free_rx_resources(adapter->rx_ring[i]); 381 *adapter->rx_ring[i] = rx_ring[i]; 382 } 383 adapter->rx_ring_count = new_rx_count; 384 385 vfree(rx_ring); 386 rx_ring = NULL; 387 } 388 389 /* restore interface using new values */ 390 ixgbevf_up(adapter); 391 392 clear_reset: 393 /* free Tx resources if Rx error is encountered */ 394 if (tx_ring) { 395 for (i = 0; 396 i < adapter->num_tx_queues + adapter->num_xdp_queues; i++) 397 ixgbevf_free_tx_resources(&tx_ring[i]); 398 vfree(tx_ring); 399 } 400 401 clear_bit(__IXGBEVF_RESETTING, &adapter->state); 402 return err; 403 } 404 405 static int ixgbevf_get_sset_count(struct net_device *netdev, int stringset) 406 { 407 switch (stringset) { 408 case ETH_SS_TEST: 409 return IXGBEVF_TEST_LEN; 410 case ETH_SS_STATS: 411 return IXGBEVF_STATS_LEN; 412 case ETH_SS_PRIV_FLAGS: 413 return IXGBEVF_PRIV_FLAGS_STR_LEN; 414 default: 415 return -EINVAL; 416 } 417 } 418 419 static void ixgbevf_get_ethtool_stats(struct net_device *netdev, 420 struct ethtool_stats *stats, u64 *data) 421 { 422 struct ixgbevf_adapter *adapter = netdev_priv(netdev); 423 struct rtnl_link_stats64 temp; 424 const struct rtnl_link_stats64 *net_stats; 425 unsigned int start; 426 struct ixgbevf_ring *ring; 427 int i, j; 428 char *p; 429 430 ixgbevf_update_stats(adapter); 431 net_stats = dev_get_stats(netdev, &temp); 432 for (i = 0; i < IXGBEVF_GLOBAL_STATS_LEN; i++) { 433 switch (ixgbevf_gstrings_stats[i].type) { 434 case NETDEV_STATS: 435 p = (char *)net_stats + 436 ixgbevf_gstrings_stats[i].stat_offset; 437 break; 438 case IXGBEVF_STATS: 439 p = (char *)adapter + 440 ixgbevf_gstrings_stats[i].stat_offset; 441 break; 442 default: 443 data[i] = 0; 444 continue; 445 } 446 447 data[i] = (ixgbevf_gstrings_stats[i].sizeof_stat == 448 sizeof(u64)) ? *(u64 *)p : *(u32 *)p; 449 } 450 451 /* populate Tx queue data */ 452 for (j = 0; j < adapter->num_tx_queues; j++) { 453 ring = adapter->tx_ring[j]; 454 if (!ring) { 455 data[i++] = 0; 456 data[i++] = 0; 457 continue; 458 } 459 460 do { 461 start = u64_stats_fetch_begin(&ring->syncp); 462 data[i] = ring->stats.packets; 463 data[i + 1] = ring->stats.bytes; 464 } while (u64_stats_fetch_retry(&ring->syncp, start)); 465 i += 2; 466 } 467 468 /* populate XDP queue data */ 469 for (j = 0; j < adapter->num_xdp_queues; j++) { 470 ring = adapter->xdp_ring[j]; 471 if (!ring) { 472 data[i++] = 0; 473 data[i++] = 0; 474 continue; 475 } 476 477 do { 478 start = u64_stats_fetch_begin(&ring->syncp); 479 data[i] = ring->stats.packets; 480 data[i + 1] = ring->stats.bytes; 481 } while (u64_stats_fetch_retry(&ring->syncp, start)); 482 i += 2; 483 } 484 485 /* populate Rx queue data */ 486 for (j = 0; j < adapter->num_rx_queues; j++) { 487 ring = adapter->rx_ring[j]; 488 if (!ring) { 489 data[i++] = 0; 490 data[i++] = 0; 491 continue; 492 } 493 494 do { 495 start = u64_stats_fetch_begin(&ring->syncp); 496 data[i] = ring->stats.packets; 497 data[i + 1] = ring->stats.bytes; 498 } while (u64_stats_fetch_retry(&ring->syncp, start)); 499 i += 2; 500 } 501 } 502 503 static void ixgbevf_get_strings(struct net_device *netdev, u32 stringset, 504 u8 *data) 505 { 506 struct ixgbevf_adapter *adapter = netdev_priv(netdev); 507 char *p = (char *)data; 508 int i; 509 510 switch (stringset) { 511 case ETH_SS_TEST: 512 memcpy(data, *ixgbe_gstrings_test, 513 IXGBEVF_TEST_LEN * ETH_GSTRING_LEN); 514 break; 515 case ETH_SS_STATS: 516 for (i = 0; i < IXGBEVF_GLOBAL_STATS_LEN; i++) { 517 memcpy(p, ixgbevf_gstrings_stats[i].stat_string, 518 ETH_GSTRING_LEN); 519 p += ETH_GSTRING_LEN; 520 } 521 522 for (i = 0; i < adapter->num_tx_queues; i++) { 523 sprintf(p, "tx_queue_%u_packets", i); 524 p += ETH_GSTRING_LEN; 525 sprintf(p, "tx_queue_%u_bytes", i); 526 p += ETH_GSTRING_LEN; 527 } 528 for (i = 0; i < adapter->num_xdp_queues; i++) { 529 sprintf(p, "xdp_queue_%u_packets", i); 530 p += ETH_GSTRING_LEN; 531 sprintf(p, "xdp_queue_%u_bytes", i); 532 p += ETH_GSTRING_LEN; 533 } 534 for (i = 0; i < adapter->num_rx_queues; i++) { 535 sprintf(p, "rx_queue_%u_packets", i); 536 p += ETH_GSTRING_LEN; 537 sprintf(p, "rx_queue_%u_bytes", i); 538 p += ETH_GSTRING_LEN; 539 } 540 break; 541 case ETH_SS_PRIV_FLAGS: 542 memcpy(data, ixgbevf_priv_flags_strings, 543 IXGBEVF_PRIV_FLAGS_STR_LEN * ETH_GSTRING_LEN); 544 break; 545 } 546 } 547 548 static int ixgbevf_link_test(struct ixgbevf_adapter *adapter, u64 *data) 549 { 550 struct ixgbe_hw *hw = &adapter->hw; 551 bool link_up; 552 u32 link_speed = 0; 553 *data = 0; 554 555 hw->mac.ops.check_link(hw, &link_speed, &link_up, true); 556 if (!link_up) 557 *data = 1; 558 559 return *data; 560 } 561 562 /* ethtool register test data */ 563 struct ixgbevf_reg_test { 564 u16 reg; 565 u8 array_len; 566 u8 test_type; 567 u32 mask; 568 u32 write; 569 }; 570 571 /* In the hardware, registers are laid out either singly, in arrays 572 * spaced 0x40 bytes apart, or in contiguous tables. We assume 573 * most tests take place on arrays or single registers (handled 574 * as a single-element array) and special-case the tables. 575 * Table tests are always pattern tests. 576 * 577 * We also make provision for some required setup steps by specifying 578 * registers to be written without any read-back testing. 579 */ 580 581 #define PATTERN_TEST 1 582 #define SET_READ_TEST 2 583 #define WRITE_NO_TEST 3 584 #define TABLE32_TEST 4 585 #define TABLE64_TEST_LO 5 586 #define TABLE64_TEST_HI 6 587 588 /* default VF register test */ 589 static const struct ixgbevf_reg_test reg_test_vf[] = { 590 { IXGBE_VFRDBAL(0), 2, PATTERN_TEST, 0xFFFFFF80, 0xFFFFFF80 }, 591 { IXGBE_VFRDBAH(0), 2, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF }, 592 { IXGBE_VFRDLEN(0), 2, PATTERN_TEST, 0x000FFF80, 0x000FFFFF }, 593 { IXGBE_VFRXDCTL(0), 2, WRITE_NO_TEST, 0, IXGBE_RXDCTL_ENABLE }, 594 { IXGBE_VFRDT(0), 2, PATTERN_TEST, 0x0000FFFF, 0x0000FFFF }, 595 { IXGBE_VFRXDCTL(0), 2, WRITE_NO_TEST, 0, 0 }, 596 { IXGBE_VFTDBAL(0), 2, PATTERN_TEST, 0xFFFFFF80, 0xFFFFFFFF }, 597 { IXGBE_VFTDBAH(0), 2, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF }, 598 { IXGBE_VFTDLEN(0), 2, PATTERN_TEST, 0x000FFF80, 0x000FFF80 }, 599 { .reg = 0 } 600 }; 601 602 static const u32 register_test_patterns[] = { 603 0x5A5A5A5A, 0xA5A5A5A5, 0x00000000, 0xFFFFFFFF 604 }; 605 606 static bool reg_pattern_test(struct ixgbevf_adapter *adapter, u64 *data, 607 int reg, u32 mask, u32 write) 608 { 609 u32 pat, val, before; 610 611 if (IXGBE_REMOVED(adapter->hw.hw_addr)) { 612 *data = 1; 613 return true; 614 } 615 for (pat = 0; pat < ARRAY_SIZE(register_test_patterns); pat++) { 616 before = ixgbevf_read_reg(&adapter->hw, reg); 617 ixgbe_write_reg(&adapter->hw, reg, 618 register_test_patterns[pat] & write); 619 val = ixgbevf_read_reg(&adapter->hw, reg); 620 if (val != (register_test_patterns[pat] & write & mask)) { 621 hw_dbg(&adapter->hw, 622 "pattern test reg %04X failed: got 0x%08X expected 0x%08X\n", 623 reg, val, 624 register_test_patterns[pat] & write & mask); 625 *data = reg; 626 ixgbe_write_reg(&adapter->hw, reg, before); 627 return true; 628 } 629 ixgbe_write_reg(&adapter->hw, reg, before); 630 } 631 return false; 632 } 633 634 static bool reg_set_and_check(struct ixgbevf_adapter *adapter, u64 *data, 635 int reg, u32 mask, u32 write) 636 { 637 u32 val, before; 638 639 if (IXGBE_REMOVED(adapter->hw.hw_addr)) { 640 *data = 1; 641 return true; 642 } 643 before = ixgbevf_read_reg(&adapter->hw, reg); 644 ixgbe_write_reg(&adapter->hw, reg, write & mask); 645 val = ixgbevf_read_reg(&adapter->hw, reg); 646 if ((write & mask) != (val & mask)) { 647 pr_err("set/check reg %04X test failed: got 0x%08X expected 0x%08X\n", 648 reg, (val & mask), write & mask); 649 *data = reg; 650 ixgbe_write_reg(&adapter->hw, reg, before); 651 return true; 652 } 653 ixgbe_write_reg(&adapter->hw, reg, before); 654 return false; 655 } 656 657 static int ixgbevf_reg_test(struct ixgbevf_adapter *adapter, u64 *data) 658 { 659 const struct ixgbevf_reg_test *test; 660 u32 i; 661 662 if (IXGBE_REMOVED(adapter->hw.hw_addr)) { 663 dev_err(&adapter->pdev->dev, 664 "Adapter removed - register test blocked\n"); 665 *data = 1; 666 return 1; 667 } 668 test = reg_test_vf; 669 670 /* Perform the register test, looping through the test table 671 * until we either fail or reach the null entry. 672 */ 673 while (test->reg) { 674 for (i = 0; i < test->array_len; i++) { 675 bool b = false; 676 677 switch (test->test_type) { 678 case PATTERN_TEST: 679 b = reg_pattern_test(adapter, data, 680 test->reg + (i * 0x40), 681 test->mask, 682 test->write); 683 break; 684 case SET_READ_TEST: 685 b = reg_set_and_check(adapter, data, 686 test->reg + (i * 0x40), 687 test->mask, 688 test->write); 689 break; 690 case WRITE_NO_TEST: 691 ixgbe_write_reg(&adapter->hw, 692 test->reg + (i * 0x40), 693 test->write); 694 break; 695 case TABLE32_TEST: 696 b = reg_pattern_test(adapter, data, 697 test->reg + (i * 4), 698 test->mask, 699 test->write); 700 break; 701 case TABLE64_TEST_LO: 702 b = reg_pattern_test(adapter, data, 703 test->reg + (i * 8), 704 test->mask, 705 test->write); 706 break; 707 case TABLE64_TEST_HI: 708 b = reg_pattern_test(adapter, data, 709 test->reg + 4 + (i * 8), 710 test->mask, 711 test->write); 712 break; 713 } 714 if (b) 715 return 1; 716 } 717 test++; 718 } 719 720 *data = 0; 721 return *data; 722 } 723 724 static void ixgbevf_diag_test(struct net_device *netdev, 725 struct ethtool_test *eth_test, u64 *data) 726 { 727 struct ixgbevf_adapter *adapter = netdev_priv(netdev); 728 bool if_running = netif_running(netdev); 729 730 if (IXGBE_REMOVED(adapter->hw.hw_addr)) { 731 dev_err(&adapter->pdev->dev, 732 "Adapter removed - test blocked\n"); 733 data[0] = 1; 734 data[1] = 1; 735 eth_test->flags |= ETH_TEST_FL_FAILED; 736 return; 737 } 738 set_bit(__IXGBEVF_TESTING, &adapter->state); 739 if (eth_test->flags == ETH_TEST_FL_OFFLINE) { 740 /* Offline tests */ 741 742 hw_dbg(&adapter->hw, "offline testing starting\n"); 743 744 /* Link test performed before hardware reset so autoneg doesn't 745 * interfere with test result 746 */ 747 if (ixgbevf_link_test(adapter, &data[1])) 748 eth_test->flags |= ETH_TEST_FL_FAILED; 749 750 if (if_running) 751 /* indicate we're in test mode */ 752 ixgbevf_close(netdev); 753 else 754 ixgbevf_reset(adapter); 755 756 hw_dbg(&adapter->hw, "register testing starting\n"); 757 if (ixgbevf_reg_test(adapter, &data[0])) 758 eth_test->flags |= ETH_TEST_FL_FAILED; 759 760 ixgbevf_reset(adapter); 761 762 clear_bit(__IXGBEVF_TESTING, &adapter->state); 763 if (if_running) 764 ixgbevf_open(netdev); 765 } else { 766 hw_dbg(&adapter->hw, "online testing starting\n"); 767 /* Online tests */ 768 if (ixgbevf_link_test(adapter, &data[1])) 769 eth_test->flags |= ETH_TEST_FL_FAILED; 770 771 /* Online tests aren't run; pass by default */ 772 data[0] = 0; 773 774 clear_bit(__IXGBEVF_TESTING, &adapter->state); 775 } 776 msleep_interruptible(4 * 1000); 777 } 778 779 static int ixgbevf_nway_reset(struct net_device *netdev) 780 { 781 struct ixgbevf_adapter *adapter = netdev_priv(netdev); 782 783 if (netif_running(netdev)) 784 ixgbevf_reinit_locked(adapter); 785 786 return 0; 787 } 788 789 static int ixgbevf_get_coalesce(struct net_device *netdev, 790 struct ethtool_coalesce *ec, 791 struct kernel_ethtool_coalesce *kernel_coal, 792 struct netlink_ext_ack *extack) 793 { 794 struct ixgbevf_adapter *adapter = netdev_priv(netdev); 795 796 /* only valid if in constant ITR mode */ 797 if (adapter->rx_itr_setting <= 1) 798 ec->rx_coalesce_usecs = adapter->rx_itr_setting; 799 else 800 ec->rx_coalesce_usecs = adapter->rx_itr_setting >> 2; 801 802 /* if in mixed Tx/Rx queues per vector mode, report only Rx settings */ 803 if (adapter->q_vector[0]->tx.count && adapter->q_vector[0]->rx.count) 804 return 0; 805 806 /* only valid if in constant ITR mode */ 807 if (adapter->tx_itr_setting <= 1) 808 ec->tx_coalesce_usecs = adapter->tx_itr_setting; 809 else 810 ec->tx_coalesce_usecs = adapter->tx_itr_setting >> 2; 811 812 return 0; 813 } 814 815 static int ixgbevf_set_coalesce(struct net_device *netdev, 816 struct ethtool_coalesce *ec, 817 struct kernel_ethtool_coalesce *kernel_coal, 818 struct netlink_ext_ack *extack) 819 { 820 struct ixgbevf_adapter *adapter = netdev_priv(netdev); 821 struct ixgbevf_q_vector *q_vector; 822 int num_vectors, i; 823 u16 tx_itr_param, rx_itr_param; 824 825 /* don't accept Tx specific changes if we've got mixed RxTx vectors */ 826 if (adapter->q_vector[0]->tx.count && 827 adapter->q_vector[0]->rx.count && ec->tx_coalesce_usecs) 828 return -EINVAL; 829 830 if ((ec->rx_coalesce_usecs > (IXGBE_MAX_EITR >> 2)) || 831 (ec->tx_coalesce_usecs > (IXGBE_MAX_EITR >> 2))) 832 return -EINVAL; 833 834 if (ec->rx_coalesce_usecs > 1) 835 adapter->rx_itr_setting = ec->rx_coalesce_usecs << 2; 836 else 837 adapter->rx_itr_setting = ec->rx_coalesce_usecs; 838 839 if (adapter->rx_itr_setting == 1) 840 rx_itr_param = IXGBE_20K_ITR; 841 else 842 rx_itr_param = adapter->rx_itr_setting; 843 844 if (ec->tx_coalesce_usecs > 1) 845 adapter->tx_itr_setting = ec->tx_coalesce_usecs << 2; 846 else 847 adapter->tx_itr_setting = ec->tx_coalesce_usecs; 848 849 if (adapter->tx_itr_setting == 1) 850 tx_itr_param = IXGBE_12K_ITR; 851 else 852 tx_itr_param = adapter->tx_itr_setting; 853 854 num_vectors = adapter->num_msix_vectors - NON_Q_VECTORS; 855 856 for (i = 0; i < num_vectors; i++) { 857 q_vector = adapter->q_vector[i]; 858 if (q_vector->tx.count && !q_vector->rx.count) 859 /* Tx only */ 860 q_vector->itr = tx_itr_param; 861 else 862 /* Rx only or mixed */ 863 q_vector->itr = rx_itr_param; 864 ixgbevf_write_eitr(q_vector); 865 } 866 867 return 0; 868 } 869 870 static int ixgbevf_get_rxnfc(struct net_device *dev, struct ethtool_rxnfc *info, 871 u32 *rules __always_unused) 872 { 873 struct ixgbevf_adapter *adapter = netdev_priv(dev); 874 875 switch (info->cmd) { 876 case ETHTOOL_GRXRINGS: 877 info->data = adapter->num_rx_queues; 878 return 0; 879 default: 880 hw_dbg(&adapter->hw, "Command parameters not supported\n"); 881 return -EOPNOTSUPP; 882 } 883 } 884 885 static u32 ixgbevf_get_rxfh_indir_size(struct net_device *netdev) 886 { 887 struct ixgbevf_adapter *adapter = netdev_priv(netdev); 888 889 if (adapter->hw.mac.type >= ixgbe_mac_X550_vf) 890 return IXGBEVF_X550_VFRETA_SIZE; 891 892 return IXGBEVF_82599_RETA_SIZE; 893 } 894 895 static u32 ixgbevf_get_rxfh_key_size(struct net_device *netdev) 896 { 897 return IXGBEVF_RSS_HASH_KEY_SIZE; 898 } 899 900 static int ixgbevf_get_rxfh(struct net_device *netdev, 901 struct ethtool_rxfh_param *rxfh) 902 { 903 struct ixgbevf_adapter *adapter = netdev_priv(netdev); 904 int err = 0; 905 906 rxfh->hfunc = ETH_RSS_HASH_TOP; 907 908 if (adapter->hw.mac.type >= ixgbe_mac_X550_vf) { 909 if (rxfh->key) 910 memcpy(rxfh->key, adapter->rss_key, 911 ixgbevf_get_rxfh_key_size(netdev)); 912 913 if (rxfh->indir) { 914 int i; 915 916 for (i = 0; i < IXGBEVF_X550_VFRETA_SIZE; i++) 917 rxfh->indir[i] = adapter->rss_indir_tbl[i]; 918 } 919 } else { 920 /* If neither indirection table nor hash key was requested 921 * - just return a success avoiding taking any locks. 922 */ 923 if (!rxfh->indir && !rxfh->key) 924 return 0; 925 926 spin_lock_bh(&adapter->mbx_lock); 927 if (rxfh->indir) 928 err = ixgbevf_get_reta_locked(&adapter->hw, 929 rxfh->indir, 930 adapter->num_rx_queues); 931 932 if (!err && rxfh->key) 933 err = ixgbevf_get_rss_key_locked(&adapter->hw, 934 rxfh->key); 935 936 spin_unlock_bh(&adapter->mbx_lock); 937 } 938 939 return err; 940 } 941 942 static u32 ixgbevf_get_priv_flags(struct net_device *netdev) 943 { 944 struct ixgbevf_adapter *adapter = netdev_priv(netdev); 945 u32 priv_flags = 0; 946 947 if (adapter->flags & IXGBEVF_FLAGS_LEGACY_RX) 948 priv_flags |= IXGBEVF_PRIV_FLAGS_LEGACY_RX; 949 950 return priv_flags; 951 } 952 953 static int ixgbevf_set_priv_flags(struct net_device *netdev, u32 priv_flags) 954 { 955 struct ixgbevf_adapter *adapter = netdev_priv(netdev); 956 unsigned int flags = adapter->flags; 957 958 flags &= ~IXGBEVF_FLAGS_LEGACY_RX; 959 if (priv_flags & IXGBEVF_PRIV_FLAGS_LEGACY_RX) 960 flags |= IXGBEVF_FLAGS_LEGACY_RX; 961 962 if (flags != adapter->flags) { 963 adapter->flags = flags; 964 965 /* reset interface to repopulate queues */ 966 if (netif_running(netdev)) 967 ixgbevf_reinit_locked(adapter); 968 } 969 970 return 0; 971 } 972 973 static const struct ethtool_ops ixgbevf_ethtool_ops = { 974 .supported_coalesce_params = ETHTOOL_COALESCE_USECS, 975 .get_drvinfo = ixgbevf_get_drvinfo, 976 .get_regs_len = ixgbevf_get_regs_len, 977 .get_regs = ixgbevf_get_regs, 978 .nway_reset = ixgbevf_nway_reset, 979 .get_link = ethtool_op_get_link, 980 .get_ringparam = ixgbevf_get_ringparam, 981 .set_ringparam = ixgbevf_set_ringparam, 982 .get_msglevel = ixgbevf_get_msglevel, 983 .set_msglevel = ixgbevf_set_msglevel, 984 .self_test = ixgbevf_diag_test, 985 .get_sset_count = ixgbevf_get_sset_count, 986 .get_strings = ixgbevf_get_strings, 987 .get_ethtool_stats = ixgbevf_get_ethtool_stats, 988 .get_coalesce = ixgbevf_get_coalesce, 989 .set_coalesce = ixgbevf_set_coalesce, 990 .get_rxnfc = ixgbevf_get_rxnfc, 991 .get_rxfh_indir_size = ixgbevf_get_rxfh_indir_size, 992 .get_rxfh_key_size = ixgbevf_get_rxfh_key_size, 993 .get_rxfh = ixgbevf_get_rxfh, 994 .get_link_ksettings = ixgbevf_get_link_ksettings, 995 .get_priv_flags = ixgbevf_get_priv_flags, 996 .set_priv_flags = ixgbevf_set_priv_flags, 997 }; 998 999 void ixgbevf_set_ethtool_ops(struct net_device *netdev) 1000 { 1001 netdev->ethtool_ops = &ixgbevf_ethtool_ops; 1002 } 1003