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 #define IXGBE_ALL_RAR_ENTRIES 16 21 22 enum {NETDEV_STATS, IXGBEVF_STATS}; 23 24 struct ixgbe_stats { 25 char stat_string[ETH_GSTRING_LEN]; 26 int type; 27 int sizeof_stat; 28 int stat_offset; 29 }; 30 31 #define IXGBEVF_STAT(_name, _stat) { \ 32 .stat_string = _name, \ 33 .type = IXGBEVF_STATS, \ 34 .sizeof_stat = sizeof_field(struct ixgbevf_adapter, _stat), \ 35 .stat_offset = offsetof(struct ixgbevf_adapter, _stat) \ 36 } 37 38 #define IXGBEVF_NETDEV_STAT(_net_stat) { \ 39 .stat_string = #_net_stat, \ 40 .type = NETDEV_STATS, \ 41 .sizeof_stat = sizeof_field(struct net_device_stats, _net_stat), \ 42 .stat_offset = offsetof(struct net_device_stats, _net_stat) \ 43 } 44 45 static struct ixgbe_stats ixgbevf_gstrings_stats[] = { 46 IXGBEVF_NETDEV_STAT(rx_packets), 47 IXGBEVF_NETDEV_STAT(tx_packets), 48 IXGBEVF_NETDEV_STAT(rx_bytes), 49 IXGBEVF_NETDEV_STAT(tx_bytes), 50 IXGBEVF_STAT("tx_busy", tx_busy), 51 IXGBEVF_STAT("tx_restart_queue", restart_queue), 52 IXGBEVF_STAT("tx_timeout_count", tx_timeout_count), 53 IXGBEVF_NETDEV_STAT(multicast), 54 IXGBEVF_STAT("rx_csum_offload_errors", hw_csum_rx_error), 55 IXGBEVF_STAT("alloc_rx_page", alloc_rx_page), 56 IXGBEVF_STAT("alloc_rx_page_failed", alloc_rx_page_failed), 57 IXGBEVF_STAT("alloc_rx_buff_failed", alloc_rx_buff_failed), 58 IXGBEVF_STAT("tx_ipsec", tx_ipsec), 59 IXGBEVF_STAT("rx_ipsec", rx_ipsec), 60 }; 61 62 #define IXGBEVF_QUEUE_STATS_LEN ( \ 63 (((struct ixgbevf_adapter *)netdev_priv(netdev))->num_tx_queues + \ 64 ((struct ixgbevf_adapter *)netdev_priv(netdev))->num_xdp_queues + \ 65 ((struct ixgbevf_adapter *)netdev_priv(netdev))->num_rx_queues) * \ 66 (sizeof(struct ixgbevf_stats) / sizeof(u64))) 67 #define IXGBEVF_GLOBAL_STATS_LEN ARRAY_SIZE(ixgbevf_gstrings_stats) 68 69 #define IXGBEVF_STATS_LEN (IXGBEVF_GLOBAL_STATS_LEN + IXGBEVF_QUEUE_STATS_LEN) 70 static const char ixgbe_gstrings_test[][ETH_GSTRING_LEN] = { 71 "Register test (offline)", 72 "Link test (on/offline)" 73 }; 74 75 #define IXGBEVF_TEST_LEN (sizeof(ixgbe_gstrings_test) / ETH_GSTRING_LEN) 76 77 static const char ixgbevf_priv_flags_strings[][ETH_GSTRING_LEN] = { 78 #define IXGBEVF_PRIV_FLAGS_LEGACY_RX BIT(0) 79 "legacy-rx", 80 }; 81 82 #define IXGBEVF_PRIV_FLAGS_STR_LEN ARRAY_SIZE(ixgbevf_priv_flags_strings) 83 84 static int ixgbevf_get_link_ksettings(struct net_device *netdev, 85 struct ethtool_link_ksettings *cmd) 86 { 87 struct ixgbevf_adapter *adapter = netdev_priv(netdev); 88 89 ethtool_link_ksettings_zero_link_mode(cmd, supported); 90 ethtool_link_ksettings_add_link_mode(cmd, supported, 10000baseT_Full); 91 cmd->base.autoneg = AUTONEG_DISABLE; 92 cmd->base.port = -1; 93 94 if (adapter->link_up) { 95 __u32 speed = SPEED_10000; 96 97 switch (adapter->link_speed) { 98 case IXGBE_LINK_SPEED_10GB_FULL: 99 speed = SPEED_10000; 100 break; 101 case IXGBE_LINK_SPEED_1GB_FULL: 102 speed = SPEED_1000; 103 break; 104 case IXGBE_LINK_SPEED_100_FULL: 105 speed = SPEED_100; 106 break; 107 } 108 109 cmd->base.speed = speed; 110 cmd->base.duplex = DUPLEX_FULL; 111 } else { 112 cmd->base.speed = SPEED_UNKNOWN; 113 cmd->base.duplex = DUPLEX_UNKNOWN; 114 } 115 116 return 0; 117 } 118 119 static u32 ixgbevf_get_msglevel(struct net_device *netdev) 120 { 121 struct ixgbevf_adapter *adapter = netdev_priv(netdev); 122 123 return adapter->msg_enable; 124 } 125 126 static void ixgbevf_set_msglevel(struct net_device *netdev, u32 data) 127 { 128 struct ixgbevf_adapter *adapter = netdev_priv(netdev); 129 130 adapter->msg_enable = data; 131 } 132 133 #define IXGBE_GET_STAT(_A_, _R_) (_A_->stats._R_) 134 135 static int ixgbevf_get_regs_len(struct net_device *netdev) 136 { 137 #define IXGBE_REGS_LEN 45 138 return IXGBE_REGS_LEN * sizeof(u32); 139 } 140 141 static void ixgbevf_get_regs(struct net_device *netdev, 142 struct ethtool_regs *regs, 143 void *p) 144 { 145 struct ixgbevf_adapter *adapter = netdev_priv(netdev); 146 struct ixgbe_hw *hw = &adapter->hw; 147 u32 *regs_buff = p; 148 u32 regs_len = ixgbevf_get_regs_len(netdev); 149 u8 i; 150 151 memset(p, 0, regs_len); 152 153 /* generate a number suitable for ethtool's register version */ 154 regs->version = (1u << 24) | (hw->revision_id << 16) | hw->device_id; 155 156 /* General Registers */ 157 regs_buff[0] = IXGBE_READ_REG(hw, IXGBE_VFCTRL); 158 regs_buff[1] = IXGBE_READ_REG(hw, IXGBE_VFSTATUS); 159 regs_buff[2] = IXGBE_READ_REG(hw, IXGBE_VFLINKS); 160 regs_buff[3] = IXGBE_READ_REG(hw, IXGBE_VFRXMEMWRAP); 161 regs_buff[4] = IXGBE_READ_REG(hw, IXGBE_VFFRTIMER); 162 163 /* Interrupt */ 164 /* don't read EICR because it can clear interrupt causes, instead 165 * read EICS which is a shadow but doesn't clear EICR 166 */ 167 regs_buff[5] = IXGBE_READ_REG(hw, IXGBE_VTEICS); 168 regs_buff[6] = IXGBE_READ_REG(hw, IXGBE_VTEICS); 169 regs_buff[7] = IXGBE_READ_REG(hw, IXGBE_VTEIMS); 170 regs_buff[8] = IXGBE_READ_REG(hw, IXGBE_VTEIMC); 171 regs_buff[9] = IXGBE_READ_REG(hw, IXGBE_VTEIAC); 172 regs_buff[10] = IXGBE_READ_REG(hw, IXGBE_VTEIAM); 173 regs_buff[11] = IXGBE_READ_REG(hw, IXGBE_VTEITR(0)); 174 regs_buff[12] = IXGBE_READ_REG(hw, IXGBE_VTIVAR(0)); 175 regs_buff[13] = IXGBE_READ_REG(hw, IXGBE_VTIVAR_MISC); 176 177 /* Receive DMA */ 178 for (i = 0; i < 2; i++) 179 regs_buff[14 + i] = IXGBE_READ_REG(hw, IXGBE_VFRDBAL(i)); 180 for (i = 0; i < 2; i++) 181 regs_buff[16 + i] = IXGBE_READ_REG(hw, IXGBE_VFRDBAH(i)); 182 for (i = 0; i < 2; i++) 183 regs_buff[18 + i] = IXGBE_READ_REG(hw, IXGBE_VFRDLEN(i)); 184 for (i = 0; i < 2; i++) 185 regs_buff[20 + i] = IXGBE_READ_REG(hw, IXGBE_VFRDH(i)); 186 for (i = 0; i < 2; i++) 187 regs_buff[22 + i] = IXGBE_READ_REG(hw, IXGBE_VFRDT(i)); 188 for (i = 0; i < 2; i++) 189 regs_buff[24 + i] = IXGBE_READ_REG(hw, IXGBE_VFRXDCTL(i)); 190 for (i = 0; i < 2; i++) 191 regs_buff[26 + i] = IXGBE_READ_REG(hw, IXGBE_VFSRRCTL(i)); 192 193 /* Receive */ 194 regs_buff[28] = IXGBE_READ_REG(hw, IXGBE_VFPSRTYPE); 195 196 /* Transmit */ 197 for (i = 0; i < 2; i++) 198 regs_buff[29 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDBAL(i)); 199 for (i = 0; i < 2; i++) 200 regs_buff[31 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDBAH(i)); 201 for (i = 0; i < 2; i++) 202 regs_buff[33 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDLEN(i)); 203 for (i = 0; i < 2; i++) 204 regs_buff[35 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDH(i)); 205 for (i = 0; i < 2; i++) 206 regs_buff[37 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDT(i)); 207 for (i = 0; i < 2; i++) 208 regs_buff[39 + i] = IXGBE_READ_REG(hw, IXGBE_VFTXDCTL(i)); 209 for (i = 0; i < 2; i++) 210 regs_buff[41 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDWBAL(i)); 211 for (i = 0; i < 2; i++) 212 regs_buff[43 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDWBAH(i)); 213 } 214 215 static void ixgbevf_get_drvinfo(struct net_device *netdev, 216 struct ethtool_drvinfo *drvinfo) 217 { 218 struct ixgbevf_adapter *adapter = netdev_priv(netdev); 219 220 strlcpy(drvinfo->driver, ixgbevf_driver_name, sizeof(drvinfo->driver)); 221 strlcpy(drvinfo->bus_info, pci_name(adapter->pdev), 222 sizeof(drvinfo->bus_info)); 223 224 drvinfo->n_priv_flags = IXGBEVF_PRIV_FLAGS_STR_LEN; 225 } 226 227 static void ixgbevf_get_ringparam(struct net_device *netdev, 228 struct ethtool_ringparam *ring, 229 struct kernel_ethtool_ringparam *kernel_ring, 230 struct netlink_ext_ack *extack) 231 { 232 struct ixgbevf_adapter *adapter = netdev_priv(netdev); 233 234 ring->rx_max_pending = IXGBEVF_MAX_RXD; 235 ring->tx_max_pending = IXGBEVF_MAX_TXD; 236 ring->rx_pending = adapter->rx_ring_count; 237 ring->tx_pending = adapter->tx_ring_count; 238 } 239 240 static int ixgbevf_set_ringparam(struct net_device *netdev, 241 struct ethtool_ringparam *ring, 242 struct kernel_ethtool_ringparam *kernel_ring, 243 struct netlink_ext_ack *extack) 244 { 245 struct ixgbevf_adapter *adapter = netdev_priv(netdev); 246 struct ixgbevf_ring *tx_ring = NULL, *rx_ring = NULL; 247 u32 new_rx_count, new_tx_count; 248 int i, j, err = 0; 249 250 if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending)) 251 return -EINVAL; 252 253 new_tx_count = max_t(u32, ring->tx_pending, IXGBEVF_MIN_TXD); 254 new_tx_count = min_t(u32, new_tx_count, IXGBEVF_MAX_TXD); 255 new_tx_count = ALIGN(new_tx_count, IXGBE_REQ_TX_DESCRIPTOR_MULTIPLE); 256 257 new_rx_count = max_t(u32, ring->rx_pending, IXGBEVF_MIN_RXD); 258 new_rx_count = min_t(u32, new_rx_count, IXGBEVF_MAX_RXD); 259 new_rx_count = ALIGN(new_rx_count, IXGBE_REQ_RX_DESCRIPTOR_MULTIPLE); 260 261 /* if nothing to do return success */ 262 if ((new_tx_count == adapter->tx_ring_count) && 263 (new_rx_count == adapter->rx_ring_count)) 264 return 0; 265 266 while (test_and_set_bit(__IXGBEVF_RESETTING, &adapter->state)) 267 usleep_range(1000, 2000); 268 269 if (!netif_running(adapter->netdev)) { 270 for (i = 0; i < adapter->num_tx_queues; i++) 271 adapter->tx_ring[i]->count = new_tx_count; 272 for (i = 0; i < adapter->num_xdp_queues; i++) 273 adapter->xdp_ring[i]->count = new_tx_count; 274 for (i = 0; i < adapter->num_rx_queues; i++) 275 adapter->rx_ring[i]->count = new_rx_count; 276 adapter->tx_ring_count = new_tx_count; 277 adapter->xdp_ring_count = new_tx_count; 278 adapter->rx_ring_count = new_rx_count; 279 goto clear_reset; 280 } 281 282 if (new_tx_count != adapter->tx_ring_count) { 283 tx_ring = vmalloc(array_size(sizeof(*tx_ring), 284 adapter->num_tx_queues + 285 adapter->num_xdp_queues)); 286 if (!tx_ring) { 287 err = -ENOMEM; 288 goto clear_reset; 289 } 290 291 for (i = 0; i < adapter->num_tx_queues; i++) { 292 /* clone ring and setup updated count */ 293 tx_ring[i] = *adapter->tx_ring[i]; 294 tx_ring[i].count = new_tx_count; 295 err = ixgbevf_setup_tx_resources(&tx_ring[i]); 296 if (err) { 297 while (i) { 298 i--; 299 ixgbevf_free_tx_resources(&tx_ring[i]); 300 } 301 302 vfree(tx_ring); 303 tx_ring = NULL; 304 305 goto clear_reset; 306 } 307 } 308 309 for (j = 0; j < adapter->num_xdp_queues; i++, j++) { 310 /* clone ring and setup updated count */ 311 tx_ring[i] = *adapter->xdp_ring[j]; 312 tx_ring[i].count = new_tx_count; 313 err = ixgbevf_setup_tx_resources(&tx_ring[i]); 314 if (err) { 315 while (i) { 316 i--; 317 ixgbevf_free_tx_resources(&tx_ring[i]); 318 } 319 320 vfree(tx_ring); 321 tx_ring = NULL; 322 323 goto clear_reset; 324 } 325 } 326 } 327 328 if (new_rx_count != adapter->rx_ring_count) { 329 rx_ring = vmalloc(array_size(sizeof(*rx_ring), 330 adapter->num_rx_queues)); 331 if (!rx_ring) { 332 err = -ENOMEM; 333 goto clear_reset; 334 } 335 336 for (i = 0; i < adapter->num_rx_queues; i++) { 337 /* clone ring and setup updated count */ 338 rx_ring[i] = *adapter->rx_ring[i]; 339 340 /* Clear copied XDP RX-queue info */ 341 memset(&rx_ring[i].xdp_rxq, 0, 342 sizeof(rx_ring[i].xdp_rxq)); 343 344 rx_ring[i].count = new_rx_count; 345 err = ixgbevf_setup_rx_resources(adapter, &rx_ring[i]); 346 if (err) { 347 while (i) { 348 i--; 349 ixgbevf_free_rx_resources(&rx_ring[i]); 350 } 351 352 vfree(rx_ring); 353 rx_ring = NULL; 354 355 goto clear_reset; 356 } 357 } 358 } 359 360 /* bring interface down to prepare for update */ 361 ixgbevf_down(adapter); 362 363 /* Tx */ 364 if (tx_ring) { 365 for (i = 0; i < adapter->num_tx_queues; i++) { 366 ixgbevf_free_tx_resources(adapter->tx_ring[i]); 367 *adapter->tx_ring[i] = tx_ring[i]; 368 } 369 adapter->tx_ring_count = new_tx_count; 370 371 for (j = 0; j < adapter->num_xdp_queues; i++, j++) { 372 ixgbevf_free_tx_resources(adapter->xdp_ring[j]); 373 *adapter->xdp_ring[j] = tx_ring[i]; 374 } 375 adapter->xdp_ring_count = new_tx_count; 376 377 vfree(tx_ring); 378 tx_ring = NULL; 379 } 380 381 /* Rx */ 382 if (rx_ring) { 383 for (i = 0; i < adapter->num_rx_queues; i++) { 384 ixgbevf_free_rx_resources(adapter->rx_ring[i]); 385 *adapter->rx_ring[i] = rx_ring[i]; 386 } 387 adapter->rx_ring_count = new_rx_count; 388 389 vfree(rx_ring); 390 rx_ring = NULL; 391 } 392 393 /* restore interface using new values */ 394 ixgbevf_up(adapter); 395 396 clear_reset: 397 /* free Tx resources if Rx error is encountered */ 398 if (tx_ring) { 399 for (i = 0; 400 i < adapter->num_tx_queues + adapter->num_xdp_queues; i++) 401 ixgbevf_free_tx_resources(&tx_ring[i]); 402 vfree(tx_ring); 403 } 404 405 clear_bit(__IXGBEVF_RESETTING, &adapter->state); 406 return err; 407 } 408 409 static int ixgbevf_get_sset_count(struct net_device *netdev, int stringset) 410 { 411 switch (stringset) { 412 case ETH_SS_TEST: 413 return IXGBEVF_TEST_LEN; 414 case ETH_SS_STATS: 415 return IXGBEVF_STATS_LEN; 416 case ETH_SS_PRIV_FLAGS: 417 return IXGBEVF_PRIV_FLAGS_STR_LEN; 418 default: 419 return -EINVAL; 420 } 421 } 422 423 static void ixgbevf_get_ethtool_stats(struct net_device *netdev, 424 struct ethtool_stats *stats, u64 *data) 425 { 426 struct ixgbevf_adapter *adapter = netdev_priv(netdev); 427 struct rtnl_link_stats64 temp; 428 const struct rtnl_link_stats64 *net_stats; 429 unsigned int start; 430 struct ixgbevf_ring *ring; 431 int i, j; 432 char *p; 433 434 ixgbevf_update_stats(adapter); 435 net_stats = dev_get_stats(netdev, &temp); 436 for (i = 0; i < IXGBEVF_GLOBAL_STATS_LEN; i++) { 437 switch (ixgbevf_gstrings_stats[i].type) { 438 case NETDEV_STATS: 439 p = (char *)net_stats + 440 ixgbevf_gstrings_stats[i].stat_offset; 441 break; 442 case IXGBEVF_STATS: 443 p = (char *)adapter + 444 ixgbevf_gstrings_stats[i].stat_offset; 445 break; 446 default: 447 data[i] = 0; 448 continue; 449 } 450 451 data[i] = (ixgbevf_gstrings_stats[i].sizeof_stat == 452 sizeof(u64)) ? *(u64 *)p : *(u32 *)p; 453 } 454 455 /* populate Tx queue data */ 456 for (j = 0; j < adapter->num_tx_queues; j++) { 457 ring = adapter->tx_ring[j]; 458 if (!ring) { 459 data[i++] = 0; 460 data[i++] = 0; 461 continue; 462 } 463 464 do { 465 start = u64_stats_fetch_begin_irq(&ring->syncp); 466 data[i] = ring->stats.packets; 467 data[i + 1] = ring->stats.bytes; 468 } while (u64_stats_fetch_retry_irq(&ring->syncp, start)); 469 i += 2; 470 } 471 472 /* populate XDP queue data */ 473 for (j = 0; j < adapter->num_xdp_queues; j++) { 474 ring = adapter->xdp_ring[j]; 475 if (!ring) { 476 data[i++] = 0; 477 data[i++] = 0; 478 continue; 479 } 480 481 do { 482 start = u64_stats_fetch_begin_irq(&ring->syncp); 483 data[i] = ring->stats.packets; 484 data[i + 1] = ring->stats.bytes; 485 } while (u64_stats_fetch_retry_irq(&ring->syncp, start)); 486 i += 2; 487 } 488 489 /* populate Rx queue data */ 490 for (j = 0; j < adapter->num_rx_queues; j++) { 491 ring = adapter->rx_ring[j]; 492 if (!ring) { 493 data[i++] = 0; 494 data[i++] = 0; 495 continue; 496 } 497 498 do { 499 start = u64_stats_fetch_begin_irq(&ring->syncp); 500 data[i] = ring->stats.packets; 501 data[i + 1] = ring->stats.bytes; 502 } while (u64_stats_fetch_retry_irq(&ring->syncp, start)); 503 i += 2; 504 } 505 } 506 507 static void ixgbevf_get_strings(struct net_device *netdev, u32 stringset, 508 u8 *data) 509 { 510 struct ixgbevf_adapter *adapter = netdev_priv(netdev); 511 char *p = (char *)data; 512 int i; 513 514 switch (stringset) { 515 case ETH_SS_TEST: 516 memcpy(data, *ixgbe_gstrings_test, 517 IXGBEVF_TEST_LEN * ETH_GSTRING_LEN); 518 break; 519 case ETH_SS_STATS: 520 for (i = 0; i < IXGBEVF_GLOBAL_STATS_LEN; i++) { 521 memcpy(p, ixgbevf_gstrings_stats[i].stat_string, 522 ETH_GSTRING_LEN); 523 p += ETH_GSTRING_LEN; 524 } 525 526 for (i = 0; i < adapter->num_tx_queues; i++) { 527 sprintf(p, "tx_queue_%u_packets", i); 528 p += ETH_GSTRING_LEN; 529 sprintf(p, "tx_queue_%u_bytes", i); 530 p += ETH_GSTRING_LEN; 531 } 532 for (i = 0; i < adapter->num_xdp_queues; i++) { 533 sprintf(p, "xdp_queue_%u_packets", i); 534 p += ETH_GSTRING_LEN; 535 sprintf(p, "xdp_queue_%u_bytes", i); 536 p += ETH_GSTRING_LEN; 537 } 538 for (i = 0; i < adapter->num_rx_queues; i++) { 539 sprintf(p, "rx_queue_%u_packets", i); 540 p += ETH_GSTRING_LEN; 541 sprintf(p, "rx_queue_%u_bytes", i); 542 p += ETH_GSTRING_LEN; 543 } 544 break; 545 case ETH_SS_PRIV_FLAGS: 546 memcpy(data, ixgbevf_priv_flags_strings, 547 IXGBEVF_PRIV_FLAGS_STR_LEN * ETH_GSTRING_LEN); 548 break; 549 } 550 } 551 552 static int ixgbevf_link_test(struct ixgbevf_adapter *adapter, u64 *data) 553 { 554 struct ixgbe_hw *hw = &adapter->hw; 555 bool link_up; 556 u32 link_speed = 0; 557 *data = 0; 558 559 hw->mac.ops.check_link(hw, &link_speed, &link_up, true); 560 if (!link_up) 561 *data = 1; 562 563 return *data; 564 } 565 566 /* ethtool register test data */ 567 struct ixgbevf_reg_test { 568 u16 reg; 569 u8 array_len; 570 u8 test_type; 571 u32 mask; 572 u32 write; 573 }; 574 575 /* In the hardware, registers are laid out either singly, in arrays 576 * spaced 0x40 bytes apart, or in contiguous tables. We assume 577 * most tests take place on arrays or single registers (handled 578 * as a single-element array) and special-case the tables. 579 * Table tests are always pattern tests. 580 * 581 * We also make provision for some required setup steps by specifying 582 * registers to be written without any read-back testing. 583 */ 584 585 #define PATTERN_TEST 1 586 #define SET_READ_TEST 2 587 #define WRITE_NO_TEST 3 588 #define TABLE32_TEST 4 589 #define TABLE64_TEST_LO 5 590 #define TABLE64_TEST_HI 6 591 592 /* default VF register test */ 593 static const struct ixgbevf_reg_test reg_test_vf[] = { 594 { IXGBE_VFRDBAL(0), 2, PATTERN_TEST, 0xFFFFFF80, 0xFFFFFF80 }, 595 { IXGBE_VFRDBAH(0), 2, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF }, 596 { IXGBE_VFRDLEN(0), 2, PATTERN_TEST, 0x000FFF80, 0x000FFFFF }, 597 { IXGBE_VFRXDCTL(0), 2, WRITE_NO_TEST, 0, IXGBE_RXDCTL_ENABLE }, 598 { IXGBE_VFRDT(0), 2, PATTERN_TEST, 0x0000FFFF, 0x0000FFFF }, 599 { IXGBE_VFRXDCTL(0), 2, WRITE_NO_TEST, 0, 0 }, 600 { IXGBE_VFTDBAL(0), 2, PATTERN_TEST, 0xFFFFFF80, 0xFFFFFFFF }, 601 { IXGBE_VFTDBAH(0), 2, PATTERN_TEST, 0xFFFFFFFF, 0xFFFFFFFF }, 602 { IXGBE_VFTDLEN(0), 2, PATTERN_TEST, 0x000FFF80, 0x000FFF80 }, 603 { .reg = 0 } 604 }; 605 606 static const u32 register_test_patterns[] = { 607 0x5A5A5A5A, 0xA5A5A5A5, 0x00000000, 0xFFFFFFFF 608 }; 609 610 static bool reg_pattern_test(struct ixgbevf_adapter *adapter, u64 *data, 611 int reg, u32 mask, u32 write) 612 { 613 u32 pat, val, before; 614 615 if (IXGBE_REMOVED(adapter->hw.hw_addr)) { 616 *data = 1; 617 return true; 618 } 619 for (pat = 0; pat < ARRAY_SIZE(register_test_patterns); pat++) { 620 before = ixgbevf_read_reg(&adapter->hw, reg); 621 ixgbe_write_reg(&adapter->hw, reg, 622 register_test_patterns[pat] & write); 623 val = ixgbevf_read_reg(&adapter->hw, reg); 624 if (val != (register_test_patterns[pat] & write & mask)) { 625 hw_dbg(&adapter->hw, 626 "pattern test reg %04X failed: got 0x%08X expected 0x%08X\n", 627 reg, val, 628 register_test_patterns[pat] & write & mask); 629 *data = reg; 630 ixgbe_write_reg(&adapter->hw, reg, before); 631 return true; 632 } 633 ixgbe_write_reg(&adapter->hw, reg, before); 634 } 635 return false; 636 } 637 638 static bool reg_set_and_check(struct ixgbevf_adapter *adapter, u64 *data, 639 int reg, u32 mask, u32 write) 640 { 641 u32 val, before; 642 643 if (IXGBE_REMOVED(adapter->hw.hw_addr)) { 644 *data = 1; 645 return true; 646 } 647 before = ixgbevf_read_reg(&adapter->hw, reg); 648 ixgbe_write_reg(&adapter->hw, reg, write & mask); 649 val = ixgbevf_read_reg(&adapter->hw, reg); 650 if ((write & mask) != (val & mask)) { 651 pr_err("set/check reg %04X test failed: got 0x%08X expected 0x%08X\n", 652 reg, (val & mask), write & mask); 653 *data = reg; 654 ixgbe_write_reg(&adapter->hw, reg, before); 655 return true; 656 } 657 ixgbe_write_reg(&adapter->hw, reg, before); 658 return false; 659 } 660 661 static int ixgbevf_reg_test(struct ixgbevf_adapter *adapter, u64 *data) 662 { 663 const struct ixgbevf_reg_test *test; 664 u32 i; 665 666 if (IXGBE_REMOVED(adapter->hw.hw_addr)) { 667 dev_err(&adapter->pdev->dev, 668 "Adapter removed - register test blocked\n"); 669 *data = 1; 670 return 1; 671 } 672 test = reg_test_vf; 673 674 /* Perform the register test, looping through the test table 675 * until we either fail or reach the null entry. 676 */ 677 while (test->reg) { 678 for (i = 0; i < test->array_len; i++) { 679 bool b = false; 680 681 switch (test->test_type) { 682 case PATTERN_TEST: 683 b = reg_pattern_test(adapter, data, 684 test->reg + (i * 0x40), 685 test->mask, 686 test->write); 687 break; 688 case SET_READ_TEST: 689 b = reg_set_and_check(adapter, data, 690 test->reg + (i * 0x40), 691 test->mask, 692 test->write); 693 break; 694 case WRITE_NO_TEST: 695 ixgbe_write_reg(&adapter->hw, 696 test->reg + (i * 0x40), 697 test->write); 698 break; 699 case TABLE32_TEST: 700 b = reg_pattern_test(adapter, data, 701 test->reg + (i * 4), 702 test->mask, 703 test->write); 704 break; 705 case TABLE64_TEST_LO: 706 b = reg_pattern_test(adapter, data, 707 test->reg + (i * 8), 708 test->mask, 709 test->write); 710 break; 711 case TABLE64_TEST_HI: 712 b = reg_pattern_test(adapter, data, 713 test->reg + 4 + (i * 8), 714 test->mask, 715 test->write); 716 break; 717 } 718 if (b) 719 return 1; 720 } 721 test++; 722 } 723 724 *data = 0; 725 return *data; 726 } 727 728 static void ixgbevf_diag_test(struct net_device *netdev, 729 struct ethtool_test *eth_test, u64 *data) 730 { 731 struct ixgbevf_adapter *adapter = netdev_priv(netdev); 732 bool if_running = netif_running(netdev); 733 734 if (IXGBE_REMOVED(adapter->hw.hw_addr)) { 735 dev_err(&adapter->pdev->dev, 736 "Adapter removed - test blocked\n"); 737 data[0] = 1; 738 data[1] = 1; 739 eth_test->flags |= ETH_TEST_FL_FAILED; 740 return; 741 } 742 set_bit(__IXGBEVF_TESTING, &adapter->state); 743 if (eth_test->flags == ETH_TEST_FL_OFFLINE) { 744 /* Offline tests */ 745 746 hw_dbg(&adapter->hw, "offline testing starting\n"); 747 748 /* Link test performed before hardware reset so autoneg doesn't 749 * interfere with test result 750 */ 751 if (ixgbevf_link_test(adapter, &data[1])) 752 eth_test->flags |= ETH_TEST_FL_FAILED; 753 754 if (if_running) 755 /* indicate we're in test mode */ 756 ixgbevf_close(netdev); 757 else 758 ixgbevf_reset(adapter); 759 760 hw_dbg(&adapter->hw, "register testing starting\n"); 761 if (ixgbevf_reg_test(adapter, &data[0])) 762 eth_test->flags |= ETH_TEST_FL_FAILED; 763 764 ixgbevf_reset(adapter); 765 766 clear_bit(__IXGBEVF_TESTING, &adapter->state); 767 if (if_running) 768 ixgbevf_open(netdev); 769 } else { 770 hw_dbg(&adapter->hw, "online testing starting\n"); 771 /* Online tests */ 772 if (ixgbevf_link_test(adapter, &data[1])) 773 eth_test->flags |= ETH_TEST_FL_FAILED; 774 775 /* Online tests aren't run; pass by default */ 776 data[0] = 0; 777 778 clear_bit(__IXGBEVF_TESTING, &adapter->state); 779 } 780 msleep_interruptible(4 * 1000); 781 } 782 783 static int ixgbevf_nway_reset(struct net_device *netdev) 784 { 785 struct ixgbevf_adapter *adapter = netdev_priv(netdev); 786 787 if (netif_running(netdev)) 788 ixgbevf_reinit_locked(adapter); 789 790 return 0; 791 } 792 793 static int ixgbevf_get_coalesce(struct net_device *netdev, 794 struct ethtool_coalesce *ec, 795 struct kernel_ethtool_coalesce *kernel_coal, 796 struct netlink_ext_ack *extack) 797 { 798 struct ixgbevf_adapter *adapter = netdev_priv(netdev); 799 800 /* only valid if in constant ITR mode */ 801 if (adapter->rx_itr_setting <= 1) 802 ec->rx_coalesce_usecs = adapter->rx_itr_setting; 803 else 804 ec->rx_coalesce_usecs = adapter->rx_itr_setting >> 2; 805 806 /* if in mixed Tx/Rx queues per vector mode, report only Rx settings */ 807 if (adapter->q_vector[0]->tx.count && adapter->q_vector[0]->rx.count) 808 return 0; 809 810 /* only valid if in constant ITR mode */ 811 if (adapter->tx_itr_setting <= 1) 812 ec->tx_coalesce_usecs = adapter->tx_itr_setting; 813 else 814 ec->tx_coalesce_usecs = adapter->tx_itr_setting >> 2; 815 816 return 0; 817 } 818 819 static int ixgbevf_set_coalesce(struct net_device *netdev, 820 struct ethtool_coalesce *ec, 821 struct kernel_ethtool_coalesce *kernel_coal, 822 struct netlink_ext_ack *extack) 823 { 824 struct ixgbevf_adapter *adapter = netdev_priv(netdev); 825 struct ixgbevf_q_vector *q_vector; 826 int num_vectors, i; 827 u16 tx_itr_param, rx_itr_param; 828 829 /* don't accept Tx specific changes if we've got mixed RxTx vectors */ 830 if (adapter->q_vector[0]->tx.count && 831 adapter->q_vector[0]->rx.count && ec->tx_coalesce_usecs) 832 return -EINVAL; 833 834 if ((ec->rx_coalesce_usecs > (IXGBE_MAX_EITR >> 2)) || 835 (ec->tx_coalesce_usecs > (IXGBE_MAX_EITR >> 2))) 836 return -EINVAL; 837 838 if (ec->rx_coalesce_usecs > 1) 839 adapter->rx_itr_setting = ec->rx_coalesce_usecs << 2; 840 else 841 adapter->rx_itr_setting = ec->rx_coalesce_usecs; 842 843 if (adapter->rx_itr_setting == 1) 844 rx_itr_param = IXGBE_20K_ITR; 845 else 846 rx_itr_param = adapter->rx_itr_setting; 847 848 if (ec->tx_coalesce_usecs > 1) 849 adapter->tx_itr_setting = ec->tx_coalesce_usecs << 2; 850 else 851 adapter->tx_itr_setting = ec->tx_coalesce_usecs; 852 853 if (adapter->tx_itr_setting == 1) 854 tx_itr_param = IXGBE_12K_ITR; 855 else 856 tx_itr_param = adapter->tx_itr_setting; 857 858 num_vectors = adapter->num_msix_vectors - NON_Q_VECTORS; 859 860 for (i = 0; i < num_vectors; i++) { 861 q_vector = adapter->q_vector[i]; 862 if (q_vector->tx.count && !q_vector->rx.count) 863 /* Tx only */ 864 q_vector->itr = tx_itr_param; 865 else 866 /* Rx only or mixed */ 867 q_vector->itr = rx_itr_param; 868 ixgbevf_write_eitr(q_vector); 869 } 870 871 return 0; 872 } 873 874 static int ixgbevf_get_rxnfc(struct net_device *dev, struct ethtool_rxnfc *info, 875 u32 *rules __always_unused) 876 { 877 struct ixgbevf_adapter *adapter = netdev_priv(dev); 878 879 switch (info->cmd) { 880 case ETHTOOL_GRXRINGS: 881 info->data = adapter->num_rx_queues; 882 return 0; 883 default: 884 hw_dbg(&adapter->hw, "Command parameters not supported\n"); 885 return -EOPNOTSUPP; 886 } 887 } 888 889 static u32 ixgbevf_get_rxfh_indir_size(struct net_device *netdev) 890 { 891 struct ixgbevf_adapter *adapter = netdev_priv(netdev); 892 893 if (adapter->hw.mac.type >= ixgbe_mac_X550_vf) 894 return IXGBEVF_X550_VFRETA_SIZE; 895 896 return IXGBEVF_82599_RETA_SIZE; 897 } 898 899 static u32 ixgbevf_get_rxfh_key_size(struct net_device *netdev) 900 { 901 return IXGBEVF_RSS_HASH_KEY_SIZE; 902 } 903 904 static int ixgbevf_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key, 905 u8 *hfunc) 906 { 907 struct ixgbevf_adapter *adapter = netdev_priv(netdev); 908 int err = 0; 909 910 if (hfunc) 911 *hfunc = ETH_RSS_HASH_TOP; 912 913 if (adapter->hw.mac.type >= ixgbe_mac_X550_vf) { 914 if (key) 915 memcpy(key, adapter->rss_key, 916 ixgbevf_get_rxfh_key_size(netdev)); 917 918 if (indir) { 919 int i; 920 921 for (i = 0; i < IXGBEVF_X550_VFRETA_SIZE; i++) 922 indir[i] = adapter->rss_indir_tbl[i]; 923 } 924 } else { 925 /* If neither indirection table nor hash key was requested 926 * - just return a success avoiding taking any locks. 927 */ 928 if (!indir && !key) 929 return 0; 930 931 spin_lock_bh(&adapter->mbx_lock); 932 if (indir) 933 err = ixgbevf_get_reta_locked(&adapter->hw, indir, 934 adapter->num_rx_queues); 935 936 if (!err && key) 937 err = ixgbevf_get_rss_key_locked(&adapter->hw, key); 938 939 spin_unlock_bh(&adapter->mbx_lock); 940 } 941 942 return err; 943 } 944 945 static u32 ixgbevf_get_priv_flags(struct net_device *netdev) 946 { 947 struct ixgbevf_adapter *adapter = netdev_priv(netdev); 948 u32 priv_flags = 0; 949 950 if (adapter->flags & IXGBEVF_FLAGS_LEGACY_RX) 951 priv_flags |= IXGBEVF_PRIV_FLAGS_LEGACY_RX; 952 953 return priv_flags; 954 } 955 956 static int ixgbevf_set_priv_flags(struct net_device *netdev, u32 priv_flags) 957 { 958 struct ixgbevf_adapter *adapter = netdev_priv(netdev); 959 unsigned int flags = adapter->flags; 960 961 flags &= ~IXGBEVF_FLAGS_LEGACY_RX; 962 if (priv_flags & IXGBEVF_PRIV_FLAGS_LEGACY_RX) 963 flags |= IXGBEVF_FLAGS_LEGACY_RX; 964 965 if (flags != adapter->flags) { 966 adapter->flags = flags; 967 968 /* reset interface to repopulate queues */ 969 if (netif_running(netdev)) 970 ixgbevf_reinit_locked(adapter); 971 } 972 973 return 0; 974 } 975 976 static const struct ethtool_ops ixgbevf_ethtool_ops = { 977 .supported_coalesce_params = ETHTOOL_COALESCE_USECS, 978 .get_drvinfo = ixgbevf_get_drvinfo, 979 .get_regs_len = ixgbevf_get_regs_len, 980 .get_regs = ixgbevf_get_regs, 981 .nway_reset = ixgbevf_nway_reset, 982 .get_link = ethtool_op_get_link, 983 .get_ringparam = ixgbevf_get_ringparam, 984 .set_ringparam = ixgbevf_set_ringparam, 985 .get_msglevel = ixgbevf_get_msglevel, 986 .set_msglevel = ixgbevf_set_msglevel, 987 .self_test = ixgbevf_diag_test, 988 .get_sset_count = ixgbevf_get_sset_count, 989 .get_strings = ixgbevf_get_strings, 990 .get_ethtool_stats = ixgbevf_get_ethtool_stats, 991 .get_coalesce = ixgbevf_get_coalesce, 992 .set_coalesce = ixgbevf_set_coalesce, 993 .get_rxnfc = ixgbevf_get_rxnfc, 994 .get_rxfh_indir_size = ixgbevf_get_rxfh_indir_size, 995 .get_rxfh_key_size = ixgbevf_get_rxfh_key_size, 996 .get_rxfh = ixgbevf_get_rxfh, 997 .get_link_ksettings = ixgbevf_get_link_ksettings, 998 .get_priv_flags = ixgbevf_get_priv_flags, 999 .set_priv_flags = ixgbevf_set_priv_flags, 1000 }; 1001 1002 void ixgbevf_set_ethtool_ops(struct net_device *netdev) 1003 { 1004 netdev->ethtool_ops = &ixgbevf_ethtool_ops; 1005 } 1006