/drivers/net/ethernet/intel/e1000e/ethtool.c
C | 2345 lines | 1812 code | 354 blank | 179 comment | 351 complexity | 3a920fd181ef20021f6bfc81035b5643 MD5 | raw file
Large files files are truncated, but you can click here to view the full file
1// SPDX-License-Identifier: GPL-2.0 2/* Copyright(c) 1999 - 2018 Intel Corporation. */ 3 4/* ethtool support for e1000 */ 5 6#include <linux/netdevice.h> 7#include <linux/interrupt.h> 8#include <linux/ethtool.h> 9#include <linux/pci.h> 10#include <linux/slab.h> 11#include <linux/delay.h> 12#include <linux/vmalloc.h> 13#include <linux/pm_runtime.h> 14 15#include "e1000.h" 16 17enum { NETDEV_STATS, E1000_STATS }; 18 19struct e1000_stats { 20 char stat_string[ETH_GSTRING_LEN]; 21 int type; 22 int sizeof_stat; 23 int stat_offset; 24}; 25 26#define E1000_STAT(str, m) { \ 27 .stat_string = str, \ 28 .type = E1000_STATS, \ 29 .sizeof_stat = sizeof(((struct e1000_adapter *)0)->m), \ 30 .stat_offset = offsetof(struct e1000_adapter, m) } 31#define E1000_NETDEV_STAT(str, m) { \ 32 .stat_string = str, \ 33 .type = NETDEV_STATS, \ 34 .sizeof_stat = sizeof(((struct rtnl_link_stats64 *)0)->m), \ 35 .stat_offset = offsetof(struct rtnl_link_stats64, m) } 36 37static const struct e1000_stats e1000_gstrings_stats[] = { 38 E1000_STAT("rx_packets", stats.gprc), 39 E1000_STAT("tx_packets", stats.gptc), 40 E1000_STAT("rx_bytes", stats.gorc), 41 E1000_STAT("tx_bytes", stats.gotc), 42 E1000_STAT("rx_broadcast", stats.bprc), 43 E1000_STAT("tx_broadcast", stats.bptc), 44 E1000_STAT("rx_multicast", stats.mprc), 45 E1000_STAT("tx_multicast", stats.mptc), 46 E1000_NETDEV_STAT("rx_errors", rx_errors), 47 E1000_NETDEV_STAT("tx_errors", tx_errors), 48 E1000_NETDEV_STAT("tx_dropped", tx_dropped), 49 E1000_STAT("multicast", stats.mprc), 50 E1000_STAT("collisions", stats.colc), 51 E1000_NETDEV_STAT("rx_length_errors", rx_length_errors), 52 E1000_NETDEV_STAT("rx_over_errors", rx_over_errors), 53 E1000_STAT("rx_crc_errors", stats.crcerrs), 54 E1000_NETDEV_STAT("rx_frame_errors", rx_frame_errors), 55 E1000_STAT("rx_no_buffer_count", stats.rnbc), 56 E1000_STAT("rx_missed_errors", stats.mpc), 57 E1000_STAT("tx_aborted_errors", stats.ecol), 58 E1000_STAT("tx_carrier_errors", stats.tncrs), 59 E1000_NETDEV_STAT("tx_fifo_errors", tx_fifo_errors), 60 E1000_NETDEV_STAT("tx_heartbeat_errors", tx_heartbeat_errors), 61 E1000_STAT("tx_window_errors", stats.latecol), 62 E1000_STAT("tx_abort_late_coll", stats.latecol), 63 E1000_STAT("tx_deferred_ok", stats.dc), 64 E1000_STAT("tx_single_coll_ok", stats.scc), 65 E1000_STAT("tx_multi_coll_ok", stats.mcc), 66 E1000_STAT("tx_timeout_count", tx_timeout_count), 67 E1000_STAT("tx_restart_queue", restart_queue), 68 E1000_STAT("rx_long_length_errors", stats.roc), 69 E1000_STAT("rx_short_length_errors", stats.ruc), 70 E1000_STAT("rx_align_errors", stats.algnerrc), 71 E1000_STAT("tx_tcp_seg_good", stats.tsctc), 72 E1000_STAT("tx_tcp_seg_failed", stats.tsctfc), 73 E1000_STAT("rx_flow_control_xon", stats.xonrxc), 74 E1000_STAT("rx_flow_control_xoff", stats.xoffrxc), 75 E1000_STAT("tx_flow_control_xon", stats.xontxc), 76 E1000_STAT("tx_flow_control_xoff", stats.xofftxc), 77 E1000_STAT("rx_csum_offload_good", hw_csum_good), 78 E1000_STAT("rx_csum_offload_errors", hw_csum_err), 79 E1000_STAT("rx_header_split", rx_hdr_split), 80 E1000_STAT("alloc_rx_buff_failed", alloc_rx_buff_failed), 81 E1000_STAT("tx_smbus", stats.mgptc), 82 E1000_STAT("rx_smbus", stats.mgprc), 83 E1000_STAT("dropped_smbus", stats.mgpdc), 84 E1000_STAT("rx_dma_failed", rx_dma_failed), 85 E1000_STAT("tx_dma_failed", tx_dma_failed), 86 E1000_STAT("rx_hwtstamp_cleared", rx_hwtstamp_cleared), 87 E1000_STAT("uncorr_ecc_errors", uncorr_errors), 88 E1000_STAT("corr_ecc_errors", corr_errors), 89 E1000_STAT("tx_hwtstamp_timeouts", tx_hwtstamp_timeouts), 90 E1000_STAT("tx_hwtstamp_skipped", tx_hwtstamp_skipped), 91}; 92 93#define E1000_GLOBAL_STATS_LEN ARRAY_SIZE(e1000_gstrings_stats) 94#define E1000_STATS_LEN (E1000_GLOBAL_STATS_LEN) 95static const char e1000_gstrings_test[][ETH_GSTRING_LEN] = { 96 "Register test (offline)", "Eeprom test (offline)", 97 "Interrupt test (offline)", "Loopback test (offline)", 98 "Link test (on/offline)" 99}; 100 101#define E1000_TEST_LEN ARRAY_SIZE(e1000_gstrings_test) 102 103static int e1000_get_link_ksettings(struct net_device *netdev, 104 struct ethtool_link_ksettings *cmd) 105{ 106 struct e1000_adapter *adapter = netdev_priv(netdev); 107 struct e1000_hw *hw = &adapter->hw; 108 u32 speed, supported, advertising; 109 110 if (hw->phy.media_type == e1000_media_type_copper) { 111 supported = (SUPPORTED_10baseT_Half | 112 SUPPORTED_10baseT_Full | 113 SUPPORTED_100baseT_Half | 114 SUPPORTED_100baseT_Full | 115 SUPPORTED_1000baseT_Full | 116 SUPPORTED_Autoneg | 117 SUPPORTED_TP); 118 if (hw->phy.type == e1000_phy_ife) 119 supported &= ~SUPPORTED_1000baseT_Full; 120 advertising = ADVERTISED_TP; 121 122 if (hw->mac.autoneg == 1) { 123 advertising |= ADVERTISED_Autoneg; 124 /* the e1000 autoneg seems to match ethtool nicely */ 125 advertising |= hw->phy.autoneg_advertised; 126 } 127 128 cmd->base.port = PORT_TP; 129 cmd->base.phy_address = hw->phy.addr; 130 } else { 131 supported = (SUPPORTED_1000baseT_Full | 132 SUPPORTED_FIBRE | 133 SUPPORTED_Autoneg); 134 135 advertising = (ADVERTISED_1000baseT_Full | 136 ADVERTISED_FIBRE | 137 ADVERTISED_Autoneg); 138 139 cmd->base.port = PORT_FIBRE; 140 } 141 142 speed = SPEED_UNKNOWN; 143 cmd->base.duplex = DUPLEX_UNKNOWN; 144 145 if (netif_running(netdev)) { 146 if (netif_carrier_ok(netdev)) { 147 speed = adapter->link_speed; 148 cmd->base.duplex = adapter->link_duplex - 1; 149 } 150 } else if (!pm_runtime_suspended(netdev->dev.parent)) { 151 u32 status = er32(STATUS); 152 153 if (status & E1000_STATUS_LU) { 154 if (status & E1000_STATUS_SPEED_1000) 155 speed = SPEED_1000; 156 else if (status & E1000_STATUS_SPEED_100) 157 speed = SPEED_100; 158 else 159 speed = SPEED_10; 160 161 if (status & E1000_STATUS_FD) 162 cmd->base.duplex = DUPLEX_FULL; 163 else 164 cmd->base.duplex = DUPLEX_HALF; 165 } 166 } 167 168 cmd->base.speed = speed; 169 cmd->base.autoneg = ((hw->phy.media_type == e1000_media_type_fiber) || 170 hw->mac.autoneg) ? AUTONEG_ENABLE : AUTONEG_DISABLE; 171 172 /* MDI-X => 2; MDI =>1; Invalid =>0 */ 173 if ((hw->phy.media_type == e1000_media_type_copper) && 174 netif_carrier_ok(netdev)) 175 cmd->base.eth_tp_mdix = hw->phy.is_mdix ? 176 ETH_TP_MDI_X : ETH_TP_MDI; 177 else 178 cmd->base.eth_tp_mdix = ETH_TP_MDI_INVALID; 179 180 if (hw->phy.mdix == AUTO_ALL_MODES) 181 cmd->base.eth_tp_mdix_ctrl = ETH_TP_MDI_AUTO; 182 else 183 cmd->base.eth_tp_mdix_ctrl = hw->phy.mdix; 184 185 if (hw->phy.media_type != e1000_media_type_copper) 186 cmd->base.eth_tp_mdix_ctrl = ETH_TP_MDI_INVALID; 187 188 ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.supported, 189 supported); 190 ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.advertising, 191 advertising); 192 193 return 0; 194} 195 196static int e1000_set_spd_dplx(struct e1000_adapter *adapter, u32 spd, u8 dplx) 197{ 198 struct e1000_mac_info *mac = &adapter->hw.mac; 199 200 mac->autoneg = 0; 201 202 /* Make sure dplx is at most 1 bit and lsb of speed is not set 203 * for the switch() below to work 204 */ 205 if ((spd & 1) || (dplx & ~1)) 206 goto err_inval; 207 208 /* Fiber NICs only allow 1000 gbps Full duplex */ 209 if ((adapter->hw.phy.media_type == e1000_media_type_fiber) && 210 (spd != SPEED_1000) && (dplx != DUPLEX_FULL)) { 211 goto err_inval; 212 } 213 214 switch (spd + dplx) { 215 case SPEED_10 + DUPLEX_HALF: 216 mac->forced_speed_duplex = ADVERTISE_10_HALF; 217 break; 218 case SPEED_10 + DUPLEX_FULL: 219 mac->forced_speed_duplex = ADVERTISE_10_FULL; 220 break; 221 case SPEED_100 + DUPLEX_HALF: 222 mac->forced_speed_duplex = ADVERTISE_100_HALF; 223 break; 224 case SPEED_100 + DUPLEX_FULL: 225 mac->forced_speed_duplex = ADVERTISE_100_FULL; 226 break; 227 case SPEED_1000 + DUPLEX_FULL: 228 if (adapter->hw.phy.media_type == e1000_media_type_copper) { 229 mac->autoneg = 1; 230 adapter->hw.phy.autoneg_advertised = 231 ADVERTISE_1000_FULL; 232 } else { 233 mac->forced_speed_duplex = ADVERTISE_1000_FULL; 234 } 235 break; 236 case SPEED_1000 + DUPLEX_HALF: /* not supported */ 237 default: 238 goto err_inval; 239 } 240 241 /* clear MDI, MDI(-X) override is only allowed when autoneg enabled */ 242 adapter->hw.phy.mdix = AUTO_ALL_MODES; 243 244 return 0; 245 246err_inval: 247 e_err("Unsupported Speed/Duplex configuration\n"); 248 return -EINVAL; 249} 250 251static int e1000_set_link_ksettings(struct net_device *netdev, 252 const struct ethtool_link_ksettings *cmd) 253{ 254 struct e1000_adapter *adapter = netdev_priv(netdev); 255 struct e1000_hw *hw = &adapter->hw; 256 int ret_val = 0; 257 u32 advertising; 258 259 ethtool_convert_link_mode_to_legacy_u32(&advertising, 260 cmd->link_modes.advertising); 261 262 pm_runtime_get_sync(netdev->dev.parent); 263 264 /* When SoL/IDER sessions are active, autoneg/speed/duplex 265 * cannot be changed 266 */ 267 if (hw->phy.ops.check_reset_block && 268 hw->phy.ops.check_reset_block(hw)) { 269 e_err("Cannot change link characteristics when SoL/IDER is active.\n"); 270 ret_val = -EINVAL; 271 goto out; 272 } 273 274 /* MDI setting is only allowed when autoneg enabled because 275 * some hardware doesn't allow MDI setting when speed or 276 * duplex is forced. 277 */ 278 if (cmd->base.eth_tp_mdix_ctrl) { 279 if (hw->phy.media_type != e1000_media_type_copper) { 280 ret_val = -EOPNOTSUPP; 281 goto out; 282 } 283 284 if ((cmd->base.eth_tp_mdix_ctrl != ETH_TP_MDI_AUTO) && 285 (cmd->base.autoneg != AUTONEG_ENABLE)) { 286 e_err("forcing MDI/MDI-X state is not supported when link speed and/or duplex are forced\n"); 287 ret_val = -EINVAL; 288 goto out; 289 } 290 } 291 292 while (test_and_set_bit(__E1000_RESETTING, &adapter->state)) 293 usleep_range(1000, 2000); 294 295 if (cmd->base.autoneg == AUTONEG_ENABLE) { 296 hw->mac.autoneg = 1; 297 if (hw->phy.media_type == e1000_media_type_fiber) 298 hw->phy.autoneg_advertised = ADVERTISED_1000baseT_Full | 299 ADVERTISED_FIBRE | ADVERTISED_Autoneg; 300 else 301 hw->phy.autoneg_advertised = advertising | 302 ADVERTISED_TP | ADVERTISED_Autoneg; 303 advertising = hw->phy.autoneg_advertised; 304 if (adapter->fc_autoneg) 305 hw->fc.requested_mode = e1000_fc_default; 306 } else { 307 u32 speed = cmd->base.speed; 308 /* calling this overrides forced MDI setting */ 309 if (e1000_set_spd_dplx(adapter, speed, cmd->base.duplex)) { 310 ret_val = -EINVAL; 311 goto out; 312 } 313 } 314 315 /* MDI-X => 2; MDI => 1; Auto => 3 */ 316 if (cmd->base.eth_tp_mdix_ctrl) { 317 /* fix up the value for auto (3 => 0) as zero is mapped 318 * internally to auto 319 */ 320 if (cmd->base.eth_tp_mdix_ctrl == ETH_TP_MDI_AUTO) 321 hw->phy.mdix = AUTO_ALL_MODES; 322 else 323 hw->phy.mdix = cmd->base.eth_tp_mdix_ctrl; 324 } 325 326 /* reset the link */ 327 if (netif_running(adapter->netdev)) { 328 e1000e_down(adapter, true); 329 e1000e_up(adapter); 330 } else { 331 e1000e_reset(adapter); 332 } 333 334out: 335 pm_runtime_put_sync(netdev->dev.parent); 336 clear_bit(__E1000_RESETTING, &adapter->state); 337 return ret_val; 338} 339 340static void e1000_get_pauseparam(struct net_device *netdev, 341 struct ethtool_pauseparam *pause) 342{ 343 struct e1000_adapter *adapter = netdev_priv(netdev); 344 struct e1000_hw *hw = &adapter->hw; 345 346 pause->autoneg = 347 (adapter->fc_autoneg ? AUTONEG_ENABLE : AUTONEG_DISABLE); 348 349 if (hw->fc.current_mode == e1000_fc_rx_pause) { 350 pause->rx_pause = 1; 351 } else if (hw->fc.current_mode == e1000_fc_tx_pause) { 352 pause->tx_pause = 1; 353 } else if (hw->fc.current_mode == e1000_fc_full) { 354 pause->rx_pause = 1; 355 pause->tx_pause = 1; 356 } 357} 358 359static int e1000_set_pauseparam(struct net_device *netdev, 360 struct ethtool_pauseparam *pause) 361{ 362 struct e1000_adapter *adapter = netdev_priv(netdev); 363 struct e1000_hw *hw = &adapter->hw; 364 int retval = 0; 365 366 adapter->fc_autoneg = pause->autoneg; 367 368 while (test_and_set_bit(__E1000_RESETTING, &adapter->state)) 369 usleep_range(1000, 2000); 370 371 pm_runtime_get_sync(netdev->dev.parent); 372 373 if (adapter->fc_autoneg == AUTONEG_ENABLE) { 374 hw->fc.requested_mode = e1000_fc_default; 375 if (netif_running(adapter->netdev)) { 376 e1000e_down(adapter, true); 377 e1000e_up(adapter); 378 } else { 379 e1000e_reset(adapter); 380 } 381 } else { 382 if (pause->rx_pause && pause->tx_pause) 383 hw->fc.requested_mode = e1000_fc_full; 384 else if (pause->rx_pause && !pause->tx_pause) 385 hw->fc.requested_mode = e1000_fc_rx_pause; 386 else if (!pause->rx_pause && pause->tx_pause) 387 hw->fc.requested_mode = e1000_fc_tx_pause; 388 else if (!pause->rx_pause && !pause->tx_pause) 389 hw->fc.requested_mode = e1000_fc_none; 390 391 hw->fc.current_mode = hw->fc.requested_mode; 392 393 if (hw->phy.media_type == e1000_media_type_fiber) { 394 retval = hw->mac.ops.setup_link(hw); 395 /* implicit goto out */ 396 } else { 397 retval = e1000e_force_mac_fc(hw); 398 if (retval) 399 goto out; 400 e1000e_set_fc_watermarks(hw); 401 } 402 } 403 404out: 405 pm_runtime_put_sync(netdev->dev.parent); 406 clear_bit(__E1000_RESETTING, &adapter->state); 407 return retval; 408} 409 410static u32 e1000_get_msglevel(struct net_device *netdev) 411{ 412 struct e1000_adapter *adapter = netdev_priv(netdev); 413 return adapter->msg_enable; 414} 415 416static void e1000_set_msglevel(struct net_device *netdev, u32 data) 417{ 418 struct e1000_adapter *adapter = netdev_priv(netdev); 419 adapter->msg_enable = data; 420} 421 422static int e1000_get_regs_len(struct net_device __always_unused *netdev) 423{ 424#define E1000_REGS_LEN 32 /* overestimate */ 425 return E1000_REGS_LEN * sizeof(u32); 426} 427 428static void e1000_get_regs(struct net_device *netdev, 429 struct ethtool_regs *regs, void *p) 430{ 431 struct e1000_adapter *adapter = netdev_priv(netdev); 432 struct e1000_hw *hw = &adapter->hw; 433 u32 *regs_buff = p; 434 u16 phy_data; 435 436 pm_runtime_get_sync(netdev->dev.parent); 437 438 memset(p, 0, E1000_REGS_LEN * sizeof(u32)); 439 440 regs->version = (1u << 24) | 441 (adapter->pdev->revision << 16) | 442 adapter->pdev->device; 443 444 regs_buff[0] = er32(CTRL); 445 regs_buff[1] = er32(STATUS); 446 447 regs_buff[2] = er32(RCTL); 448 regs_buff[3] = er32(RDLEN(0)); 449 regs_buff[4] = er32(RDH(0)); 450 regs_buff[5] = er32(RDT(0)); 451 regs_buff[6] = er32(RDTR); 452 453 regs_buff[7] = er32(TCTL); 454 regs_buff[8] = er32(TDLEN(0)); 455 regs_buff[9] = er32(TDH(0)); 456 regs_buff[10] = er32(TDT(0)); 457 regs_buff[11] = er32(TIDV); 458 459 regs_buff[12] = adapter->hw.phy.type; /* PHY type (IGP=1, M88=0) */ 460 461 /* ethtool doesn't use anything past this point, so all this 462 * code is likely legacy junk for apps that may or may not exist 463 */ 464 if (hw->phy.type == e1000_phy_m88) { 465 e1e_rphy(hw, M88E1000_PHY_SPEC_STATUS, &phy_data); 466 regs_buff[13] = (u32)phy_data; /* cable length */ 467 regs_buff[14] = 0; /* Dummy (to align w/ IGP phy reg dump) */ 468 regs_buff[15] = 0; /* Dummy (to align w/ IGP phy reg dump) */ 469 regs_buff[16] = 0; /* Dummy (to align w/ IGP phy reg dump) */ 470 e1e_rphy(hw, M88E1000_PHY_SPEC_CTRL, &phy_data); 471 regs_buff[17] = (u32)phy_data; /* extended 10bt distance */ 472 regs_buff[18] = regs_buff[13]; /* cable polarity */ 473 regs_buff[19] = 0; /* Dummy (to align w/ IGP phy reg dump) */ 474 regs_buff[20] = regs_buff[17]; /* polarity correction */ 475 /* phy receive errors */ 476 regs_buff[22] = adapter->phy_stats.receive_errors; 477 regs_buff[23] = regs_buff[13]; /* mdix mode */ 478 } 479 regs_buff[21] = 0; /* was idle_errors */ 480 e1e_rphy(hw, MII_STAT1000, &phy_data); 481 regs_buff[24] = (u32)phy_data; /* phy local receiver status */ 482 regs_buff[25] = regs_buff[24]; /* phy remote receiver status */ 483 484 pm_runtime_put_sync(netdev->dev.parent); 485} 486 487static int e1000_get_eeprom_len(struct net_device *netdev) 488{ 489 struct e1000_adapter *adapter = netdev_priv(netdev); 490 return adapter->hw.nvm.word_size * 2; 491} 492 493static int e1000_get_eeprom(struct net_device *netdev, 494 struct ethtool_eeprom *eeprom, u8 *bytes) 495{ 496 struct e1000_adapter *adapter = netdev_priv(netdev); 497 struct e1000_hw *hw = &adapter->hw; 498 u16 *eeprom_buff; 499 int first_word; 500 int last_word; 501 int ret_val = 0; 502 u16 i; 503 504 if (eeprom->len == 0) 505 return -EINVAL; 506 507 eeprom->magic = adapter->pdev->vendor | (adapter->pdev->device << 16); 508 509 first_word = eeprom->offset >> 1; 510 last_word = (eeprom->offset + eeprom->len - 1) >> 1; 511 512 eeprom_buff = kmalloc_array(last_word - first_word + 1, sizeof(u16), 513 GFP_KERNEL); 514 if (!eeprom_buff) 515 return -ENOMEM; 516 517 pm_runtime_get_sync(netdev->dev.parent); 518 519 if (hw->nvm.type == e1000_nvm_eeprom_spi) { 520 ret_val = e1000_read_nvm(hw, first_word, 521 last_word - first_word + 1, 522 eeprom_buff); 523 } else { 524 for (i = 0; i < last_word - first_word + 1; i++) { 525 ret_val = e1000_read_nvm(hw, first_word + i, 1, 526 &eeprom_buff[i]); 527 if (ret_val) 528 break; 529 } 530 } 531 532 pm_runtime_put_sync(netdev->dev.parent); 533 534 if (ret_val) { 535 /* a read error occurred, throw away the result */ 536 memset(eeprom_buff, 0xff, sizeof(u16) * 537 (last_word - first_word + 1)); 538 } else { 539 /* Device's eeprom is always little-endian, word addressable */ 540 for (i = 0; i < last_word - first_word + 1; i++) 541 le16_to_cpus(&eeprom_buff[i]); 542 } 543 544 memcpy(bytes, (u8 *)eeprom_buff + (eeprom->offset & 1), eeprom->len); 545 kfree(eeprom_buff); 546 547 return ret_val; 548} 549 550static int e1000_set_eeprom(struct net_device *netdev, 551 struct ethtool_eeprom *eeprom, u8 *bytes) 552{ 553 struct e1000_adapter *adapter = netdev_priv(netdev); 554 struct e1000_hw *hw = &adapter->hw; 555 u16 *eeprom_buff; 556 void *ptr; 557 int max_len; 558 int first_word; 559 int last_word; 560 int ret_val = 0; 561 u16 i; 562 563 if (eeprom->len == 0) 564 return -EOPNOTSUPP; 565 566 if (eeprom->magic != 567 (adapter->pdev->vendor | (adapter->pdev->device << 16))) 568 return -EFAULT; 569 570 if (adapter->flags & FLAG_READ_ONLY_NVM) 571 return -EINVAL; 572 573 max_len = hw->nvm.word_size * 2; 574 575 first_word = eeprom->offset >> 1; 576 last_word = (eeprom->offset + eeprom->len - 1) >> 1; 577 eeprom_buff = kmalloc(max_len, GFP_KERNEL); 578 if (!eeprom_buff) 579 return -ENOMEM; 580 581 ptr = (void *)eeprom_buff; 582 583 pm_runtime_get_sync(netdev->dev.parent); 584 585 if (eeprom->offset & 1) { 586 /* need read/modify/write of first changed EEPROM word */ 587 /* only the second byte of the word is being modified */ 588 ret_val = e1000_read_nvm(hw, first_word, 1, &eeprom_buff[0]); 589 ptr++; 590 } 591 if (((eeprom->offset + eeprom->len) & 1) && (!ret_val)) 592 /* need read/modify/write of last changed EEPROM word */ 593 /* only the first byte of the word is being modified */ 594 ret_val = e1000_read_nvm(hw, last_word, 1, 595 &eeprom_buff[last_word - first_word]); 596 597 if (ret_val) 598 goto out; 599 600 /* Device's eeprom is always little-endian, word addressable */ 601 for (i = 0; i < last_word - first_word + 1; i++) 602 le16_to_cpus(&eeprom_buff[i]); 603 604 memcpy(ptr, bytes, eeprom->len); 605 606 for (i = 0; i < last_word - first_word + 1; i++) 607 cpu_to_le16s(&eeprom_buff[i]); 608 609 ret_val = e1000_write_nvm(hw, first_word, 610 last_word - first_word + 1, eeprom_buff); 611 612 if (ret_val) 613 goto out; 614 615 /* Update the checksum over the first part of the EEPROM if needed 616 * and flush shadow RAM for applicable controllers 617 */ 618 if ((first_word <= NVM_CHECKSUM_REG) || 619 (hw->mac.type == e1000_82583) || 620 (hw->mac.type == e1000_82574) || 621 (hw->mac.type == e1000_82573)) 622 ret_val = e1000e_update_nvm_checksum(hw); 623 624out: 625 pm_runtime_put_sync(netdev->dev.parent); 626 kfree(eeprom_buff); 627 return ret_val; 628} 629 630static void e1000_get_drvinfo(struct net_device *netdev, 631 struct ethtool_drvinfo *drvinfo) 632{ 633 struct e1000_adapter *adapter = netdev_priv(netdev); 634 635 strlcpy(drvinfo->driver, e1000e_driver_name, sizeof(drvinfo->driver)); 636 strlcpy(drvinfo->version, e1000e_driver_version, 637 sizeof(drvinfo->version)); 638 639 /* EEPROM image version # is reported as firmware version # for 640 * PCI-E controllers 641 */ 642 snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version), 643 "%d.%d-%d", 644 (adapter->eeprom_vers & 0xF000) >> 12, 645 (adapter->eeprom_vers & 0x0FF0) >> 4, 646 (adapter->eeprom_vers & 0x000F)); 647 648 strlcpy(drvinfo->bus_info, pci_name(adapter->pdev), 649 sizeof(drvinfo->bus_info)); 650} 651 652static void e1000_get_ringparam(struct net_device *netdev, 653 struct ethtool_ringparam *ring) 654{ 655 struct e1000_adapter *adapter = netdev_priv(netdev); 656 657 ring->rx_max_pending = E1000_MAX_RXD; 658 ring->tx_max_pending = E1000_MAX_TXD; 659 ring->rx_pending = adapter->rx_ring_count; 660 ring->tx_pending = adapter->tx_ring_count; 661} 662 663static int e1000_set_ringparam(struct net_device *netdev, 664 struct ethtool_ringparam *ring) 665{ 666 struct e1000_adapter *adapter = netdev_priv(netdev); 667 struct e1000_ring *temp_tx = NULL, *temp_rx = NULL; 668 int err = 0, size = sizeof(struct e1000_ring); 669 bool set_tx = false, set_rx = false; 670 u16 new_rx_count, new_tx_count; 671 672 if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending)) 673 return -EINVAL; 674 675 new_rx_count = clamp_t(u32, ring->rx_pending, E1000_MIN_RXD, 676 E1000_MAX_RXD); 677 new_rx_count = ALIGN(new_rx_count, REQ_RX_DESCRIPTOR_MULTIPLE); 678 679 new_tx_count = clamp_t(u32, ring->tx_pending, E1000_MIN_TXD, 680 E1000_MAX_TXD); 681 new_tx_count = ALIGN(new_tx_count, REQ_TX_DESCRIPTOR_MULTIPLE); 682 683 if ((new_tx_count == adapter->tx_ring_count) && 684 (new_rx_count == adapter->rx_ring_count)) 685 /* nothing to do */ 686 return 0; 687 688 while (test_and_set_bit(__E1000_RESETTING, &adapter->state)) 689 usleep_range(1000, 2000); 690 691 if (!netif_running(adapter->netdev)) { 692 /* Set counts now and allocate resources during open() */ 693 adapter->tx_ring->count = new_tx_count; 694 adapter->rx_ring->count = new_rx_count; 695 adapter->tx_ring_count = new_tx_count; 696 adapter->rx_ring_count = new_rx_count; 697 goto clear_reset; 698 } 699 700 set_tx = (new_tx_count != adapter->tx_ring_count); 701 set_rx = (new_rx_count != adapter->rx_ring_count); 702 703 /* Allocate temporary storage for ring updates */ 704 if (set_tx) { 705 temp_tx = vmalloc(size); 706 if (!temp_tx) { 707 err = -ENOMEM; 708 goto free_temp; 709 } 710 } 711 if (set_rx) { 712 temp_rx = vmalloc(size); 713 if (!temp_rx) { 714 err = -ENOMEM; 715 goto free_temp; 716 } 717 } 718 719 pm_runtime_get_sync(netdev->dev.parent); 720 721 e1000e_down(adapter, true); 722 723 /* We can't just free everything and then setup again, because the 724 * ISRs in MSI-X mode get passed pointers to the Tx and Rx ring 725 * structs. First, attempt to allocate new resources... 726 */ 727 if (set_tx) { 728 memcpy(temp_tx, adapter->tx_ring, size); 729 temp_tx->count = new_tx_count; 730 err = e1000e_setup_tx_resources(temp_tx); 731 if (err) 732 goto err_setup; 733 } 734 if (set_rx) { 735 memcpy(temp_rx, adapter->rx_ring, size); 736 temp_rx->count = new_rx_count; 737 err = e1000e_setup_rx_resources(temp_rx); 738 if (err) 739 goto err_setup_rx; 740 } 741 742 /* ...then free the old resources and copy back any new ring data */ 743 if (set_tx) { 744 e1000e_free_tx_resources(adapter->tx_ring); 745 memcpy(adapter->tx_ring, temp_tx, size); 746 adapter->tx_ring_count = new_tx_count; 747 } 748 if (set_rx) { 749 e1000e_free_rx_resources(adapter->rx_ring); 750 memcpy(adapter->rx_ring, temp_rx, size); 751 adapter->rx_ring_count = new_rx_count; 752 } 753 754err_setup_rx: 755 if (err && set_tx) 756 e1000e_free_tx_resources(temp_tx); 757err_setup: 758 e1000e_up(adapter); 759 pm_runtime_put_sync(netdev->dev.parent); 760free_temp: 761 vfree(temp_tx); 762 vfree(temp_rx); 763clear_reset: 764 clear_bit(__E1000_RESETTING, &adapter->state); 765 return err; 766} 767 768static bool reg_pattern_test(struct e1000_adapter *adapter, u64 *data, 769 int reg, int offset, u32 mask, u32 write) 770{ 771 u32 pat, val; 772 static const u32 test[] = { 773 0x5A5A5A5A, 0xA5A5A5A5, 0x00000000, 0xFFFFFFFF 774 }; 775 for (pat = 0; pat < ARRAY_SIZE(test); pat++) { 776 E1000_WRITE_REG_ARRAY(&adapter->hw, reg, offset, 777 (test[pat] & write)); 778 val = E1000_READ_REG_ARRAY(&adapter->hw, reg, offset); 779 if (val != (test[pat] & write & mask)) { 780 e_err("pattern test failed (reg 0x%05X): got 0x%08X expected 0x%08X\n", 781 reg + (offset << 2), val, 782 (test[pat] & write & mask)); 783 *data = reg; 784 return true; 785 } 786 } 787 return false; 788} 789 790static bool reg_set_and_check(struct e1000_adapter *adapter, u64 *data, 791 int reg, u32 mask, u32 write) 792{ 793 u32 val; 794 795 __ew32(&adapter->hw, reg, write & mask); 796 val = __er32(&adapter->hw, reg); 797 if ((write & mask) != (val & mask)) { 798 e_err("set/check test failed (reg 0x%05X): got 0x%08X expected 0x%08X\n", 799 reg, (val & mask), (write & mask)); 800 *data = reg; 801 return true; 802 } 803 return false; 804} 805 806#define REG_PATTERN_TEST_ARRAY(reg, offset, mask, write) \ 807 do { \ 808 if (reg_pattern_test(adapter, data, reg, offset, mask, write)) \ 809 return 1; \ 810 } while (0) 811#define REG_PATTERN_TEST(reg, mask, write) \ 812 REG_PATTERN_TEST_ARRAY(reg, 0, mask, write) 813 814#define REG_SET_AND_CHECK(reg, mask, write) \ 815 do { \ 816 if (reg_set_and_check(adapter, data, reg, mask, write)) \ 817 return 1; \ 818 } while (0) 819 820static int e1000_reg_test(struct e1000_adapter *adapter, u64 *data) 821{ 822 struct e1000_hw *hw = &adapter->hw; 823 struct e1000_mac_info *mac = &adapter->hw.mac; 824 u32 value; 825 u32 before; 826 u32 after; 827 u32 i; 828 u32 toggle; 829 u32 mask; 830 u32 wlock_mac = 0; 831 832 /* The status register is Read Only, so a write should fail. 833 * Some bits that get toggled are ignored. There are several bits 834 * on newer hardware that are r/w. 835 */ 836 switch (mac->type) { 837 case e1000_82571: 838 case e1000_82572: 839 case e1000_80003es2lan: 840 toggle = 0x7FFFF3FF; 841 break; 842 default: 843 toggle = 0x7FFFF033; 844 break; 845 } 846 847 before = er32(STATUS); 848 value = (er32(STATUS) & toggle); 849 ew32(STATUS, toggle); 850 after = er32(STATUS) & toggle; 851 if (value != after) { 852 e_err("failed STATUS register test got: 0x%08X expected: 0x%08X\n", 853 after, value); 854 *data = 1; 855 return 1; 856 } 857 /* restore previous status */ 858 ew32(STATUS, before); 859 860 if (!(adapter->flags & FLAG_IS_ICH)) { 861 REG_PATTERN_TEST(E1000_FCAL, 0xFFFFFFFF, 0xFFFFFFFF); 862 REG_PATTERN_TEST(E1000_FCAH, 0x0000FFFF, 0xFFFFFFFF); 863 REG_PATTERN_TEST(E1000_FCT, 0x0000FFFF, 0xFFFFFFFF); 864 REG_PATTERN_TEST(E1000_VET, 0x0000FFFF, 0xFFFFFFFF); 865 } 866 867 REG_PATTERN_TEST(E1000_RDTR, 0x0000FFFF, 0xFFFFFFFF); 868 REG_PATTERN_TEST(E1000_RDBAH(0), 0xFFFFFFFF, 0xFFFFFFFF); 869 REG_PATTERN_TEST(E1000_RDLEN(0), 0x000FFF80, 0x000FFFFF); 870 REG_PATTERN_TEST(E1000_RDH(0), 0x0000FFFF, 0x0000FFFF); 871 REG_PATTERN_TEST(E1000_RDT(0), 0x0000FFFF, 0x0000FFFF); 872 REG_PATTERN_TEST(E1000_FCRTH, 0x0000FFF8, 0x0000FFF8); 873 REG_PATTERN_TEST(E1000_FCTTV, 0x0000FFFF, 0x0000FFFF); 874 REG_PATTERN_TEST(E1000_TIPG, 0x3FFFFFFF, 0x3FFFFFFF); 875 REG_PATTERN_TEST(E1000_TDBAH(0), 0xFFFFFFFF, 0xFFFFFFFF); 876 REG_PATTERN_TEST(E1000_TDLEN(0), 0x000FFF80, 0x000FFFFF); 877 878 REG_SET_AND_CHECK(E1000_RCTL, 0xFFFFFFFF, 0x00000000); 879 880 before = ((adapter->flags & FLAG_IS_ICH) ? 0x06C3B33E : 0x06DFB3FE); 881 REG_SET_AND_CHECK(E1000_RCTL, before, 0x003FFFFB); 882 REG_SET_AND_CHECK(E1000_TCTL, 0xFFFFFFFF, 0x00000000); 883 884 REG_SET_AND_CHECK(E1000_RCTL, before, 0xFFFFFFFF); 885 REG_PATTERN_TEST(E1000_RDBAL(0), 0xFFFFFFF0, 0xFFFFFFFF); 886 if (!(adapter->flags & FLAG_IS_ICH)) 887 REG_PATTERN_TEST(E1000_TXCW, 0xC000FFFF, 0x0000FFFF); 888 REG_PATTERN_TEST(E1000_TDBAL(0), 0xFFFFFFF0, 0xFFFFFFFF); 889 REG_PATTERN_TEST(E1000_TIDV, 0x0000FFFF, 0x0000FFFF); 890 mask = 0x8003FFFF; 891 switch (mac->type) { 892 case e1000_ich10lan: 893 case e1000_pchlan: 894 case e1000_pch2lan: 895 case e1000_pch_lpt: 896 case e1000_pch_spt: 897 case e1000_pch_cnp: 898 /* fall through */ 899 case e1000_pch_tgp: 900 case e1000_pch_adp: 901 mask |= BIT(18); 902 break; 903 default: 904 break; 905 } 906 907 if (mac->type >= e1000_pch_lpt) 908 wlock_mac = (er32(FWSM) & E1000_FWSM_WLOCK_MAC_MASK) >> 909 E1000_FWSM_WLOCK_MAC_SHIFT; 910 911 for (i = 0; i < mac->rar_entry_count; i++) { 912 if (mac->type >= e1000_pch_lpt) { 913 /* Cannot test write-protected SHRAL[n] registers */ 914 if ((wlock_mac == 1) || (wlock_mac && (i > wlock_mac))) 915 continue; 916 917 /* SHRAH[9] different than the others */ 918 if (i == 10) 919 mask |= BIT(30); 920 else 921 mask &= ~BIT(30); 922 } 923 if (mac->type == e1000_pch2lan) { 924 /* SHRAH[0,1,2] different than previous */ 925 if (i == 1) 926 mask &= 0xFFF4FFFF; 927 /* SHRAH[3] different than SHRAH[0,1,2] */ 928 if (i == 4) 929 mask |= BIT(30); 930 /* RAR[1-6] owned by management engine - skipping */ 931 if (i > 0) 932 i += 6; 933 } 934 935 REG_PATTERN_TEST_ARRAY(E1000_RA, ((i << 1) + 1), mask, 936 0xFFFFFFFF); 937 /* reset index to actual value */ 938 if ((mac->type == e1000_pch2lan) && (i > 6)) 939 i -= 6; 940 } 941 942 for (i = 0; i < mac->mta_reg_count; i++) 943 REG_PATTERN_TEST_ARRAY(E1000_MTA, i, 0xFFFFFFFF, 0xFFFFFFFF); 944 945 *data = 0; 946 947 return 0; 948} 949 950static int e1000_eeprom_test(struct e1000_adapter *adapter, u64 *data) 951{ 952 u16 temp; 953 u16 checksum = 0; 954 u16 i; 955 956 *data = 0; 957 /* Read and add up the contents of the EEPROM */ 958 for (i = 0; i < (NVM_CHECKSUM_REG + 1); i++) { 959 if ((e1000_read_nvm(&adapter->hw, i, 1, &temp)) < 0) { 960 *data = 1; 961 return *data; 962 } 963 checksum += temp; 964 } 965 966 /* If Checksum is not Correct return error else test passed */ 967 if ((checksum != (u16)NVM_SUM) && !(*data)) 968 *data = 2; 969 970 return *data; 971} 972 973static irqreturn_t e1000_test_intr(int __always_unused irq, void *data) 974{ 975 struct net_device *netdev = (struct net_device *)data; 976 struct e1000_adapter *adapter = netdev_priv(netdev); 977 struct e1000_hw *hw = &adapter->hw; 978 979 adapter->test_icr |= er32(ICR); 980 981 return IRQ_HANDLED; 982} 983 984static int e1000_intr_test(struct e1000_adapter *adapter, u64 *data) 985{ 986 struct net_device *netdev = adapter->netdev; 987 struct e1000_hw *hw = &adapter->hw; 988 u32 mask; 989 u32 shared_int = 1; 990 u32 irq = adapter->pdev->irq; 991 int i; 992 int ret_val = 0; 993 int int_mode = E1000E_INT_MODE_LEGACY; 994 995 *data = 0; 996 997 /* NOTE: we don't test MSI/MSI-X interrupts here, yet */ 998 if (adapter->int_mode == E1000E_INT_MODE_MSIX) { 999 int_mode = adapter->int_mode; 1000 e1000e_reset_interrupt_capability(adapter); 1001 adapter->int_mode = E1000E_INT_MODE_LEGACY; 1002 e1000e_set_interrupt_capability(adapter); 1003 } 1004 /* Hook up test interrupt handler just for this test */ 1005 if (!request_irq(irq, e1000_test_intr, IRQF_PROBE_SHARED, netdev->name, 1006 netdev)) { 1007 shared_int = 0; 1008 } else if (request_irq(irq, e1000_test_intr, IRQF_SHARED, netdev->name, 1009 netdev)) { 1010 *data = 1; 1011 ret_val = -1; 1012 goto out; 1013 } 1014 e_info("testing %s interrupt\n", (shared_int ? "shared" : "unshared")); 1015 1016 /* Disable all the interrupts */ 1017 ew32(IMC, 0xFFFFFFFF); 1018 e1e_flush(); 1019 usleep_range(10000, 11000); 1020 1021 /* Test each interrupt */ 1022 for (i = 0; i < 10; i++) { 1023 /* Interrupt to test */ 1024 mask = BIT(i); 1025 1026 if (adapter->flags & FLAG_IS_ICH) { 1027 switch (mask) { 1028 case E1000_ICR_RXSEQ: 1029 continue; 1030 case 0x00000100: 1031 if (adapter->hw.mac.type == e1000_ich8lan || 1032 adapter->hw.mac.type == e1000_ich9lan) 1033 continue; 1034 break; 1035 default: 1036 break; 1037 } 1038 } 1039 1040 if (!shared_int) { 1041 /* Disable the interrupt to be reported in 1042 * the cause register and then force the same 1043 * interrupt and see if one gets posted. If 1044 * an interrupt was posted to the bus, the 1045 * test failed. 1046 */ 1047 adapter->test_icr = 0; 1048 ew32(IMC, mask); 1049 ew32(ICS, mask); 1050 e1e_flush(); 1051 usleep_range(10000, 11000); 1052 1053 if (adapter->test_icr & mask) { 1054 *data = 3; 1055 break; 1056 } 1057 } 1058 1059 /* Enable the interrupt to be reported in 1060 * the cause register and then force the same 1061 * interrupt and see if one gets posted. If 1062 * an interrupt was not posted to the bus, the 1063 * test failed. 1064 */ 1065 adapter->test_icr = 0; 1066 ew32(IMS, mask); 1067 ew32(ICS, mask); 1068 e1e_flush(); 1069 usleep_range(10000, 11000); 1070 1071 if (!(adapter->test_icr & mask)) { 1072 *data = 4; 1073 break; 1074 } 1075 1076 if (!shared_int) { 1077 /* Disable the other interrupts to be reported in 1078 * the cause register and then force the other 1079 * interrupts and see if any get posted. If 1080 * an interrupt was posted to the bus, the 1081 * test failed. 1082 */ 1083 adapter->test_icr = 0; 1084 ew32(IMC, ~mask & 0x00007FFF); 1085 ew32(ICS, ~mask & 0x00007FFF); 1086 e1e_flush(); 1087 usleep_range(10000, 11000); 1088 1089 if (adapter->test_icr) { 1090 *data = 5; 1091 break; 1092 } 1093 } 1094 } 1095 1096 /* Disable all the interrupts */ 1097 ew32(IMC, 0xFFFFFFFF); 1098 e1e_flush(); 1099 usleep_range(10000, 11000); 1100 1101 /* Unhook test interrupt handler */ 1102 free_irq(irq, netdev); 1103 1104out: 1105 if (int_mode == E1000E_INT_MODE_MSIX) { 1106 e1000e_reset_interrupt_capability(adapter); 1107 adapter->int_mode = int_mode; 1108 e1000e_set_interrupt_capability(adapter); 1109 } 1110 1111 return ret_val; 1112} 1113 1114static void e1000_free_desc_rings(struct e1000_adapter *adapter) 1115{ 1116 struct e1000_ring *tx_ring = &adapter->test_tx_ring; 1117 struct e1000_ring *rx_ring = &adapter->test_rx_ring; 1118 struct pci_dev *pdev = adapter->pdev; 1119 struct e1000_buffer *buffer_info; 1120 int i; 1121 1122 if (tx_ring->desc && tx_ring->buffer_info) { 1123 for (i = 0; i < tx_ring->count; i++) { 1124 buffer_info = &tx_ring->buffer_info[i]; 1125 1126 if (buffer_info->dma) 1127 dma_unmap_single(&pdev->dev, 1128 buffer_info->dma, 1129 buffer_info->length, 1130 DMA_TO_DEVICE); 1131 dev_kfree_skb(buffer_info->skb); 1132 } 1133 } 1134 1135 if (rx_ring->desc && rx_ring->buffer_info) { 1136 for (i = 0; i < rx_ring->count; i++) { 1137 buffer_info = &rx_ring->buffer_info[i]; 1138 1139 if (buffer_info->dma) 1140 dma_unmap_single(&pdev->dev, 1141 buffer_info->dma, 1142 2048, DMA_FROM_DEVICE); 1143 dev_kfree_skb(buffer_info->skb); 1144 } 1145 } 1146 1147 if (tx_ring->desc) { 1148 dma_free_coherent(&pdev->dev, tx_ring->size, tx_ring->desc, 1149 tx_ring->dma); 1150 tx_ring->desc = NULL; 1151 } 1152 if (rx_ring->desc) { 1153 dma_free_coherent(&pdev->dev, rx_ring->size, rx_ring->desc, 1154 rx_ring->dma); 1155 rx_ring->desc = NULL; 1156 } 1157 1158 kfree(tx_ring->buffer_info); 1159 tx_ring->buffer_info = NULL; 1160 kfree(rx_ring->buffer_info); 1161 rx_ring->buffer_info = NULL; 1162} 1163 1164static int e1000_setup_desc_rings(struct e1000_adapter *adapter) 1165{ 1166 struct e1000_ring *tx_ring = &adapter->test_tx_ring; 1167 struct e1000_ring *rx_ring = &adapter->test_rx_ring; 1168 struct pci_dev *pdev = adapter->pdev; 1169 struct e1000_hw *hw = &adapter->hw; 1170 u32 rctl; 1171 int i; 1172 int ret_val; 1173 1174 /* Setup Tx descriptor ring and Tx buffers */ 1175 1176 if (!tx_ring->count) 1177 tx_ring->count = E1000_DEFAULT_TXD; 1178 1179 tx_ring->buffer_info = kcalloc(tx_ring->count, 1180 sizeof(struct e1000_buffer), GFP_KERNEL); 1181 if (!tx_ring->buffer_info) { 1182 ret_val = 1; 1183 goto err_nomem; 1184 } 1185 1186 tx_ring->size = tx_ring->count * sizeof(struct e1000_tx_desc); 1187 tx_ring->size = ALIGN(tx_ring->size, 4096); 1188 tx_ring->desc = dma_alloc_coherent(&pdev->dev, tx_ring->size, 1189 &tx_ring->dma, GFP_KERNEL); 1190 if (!tx_ring->desc) { 1191 ret_val = 2; 1192 goto err_nomem; 1193 } 1194 tx_ring->next_to_use = 0; 1195 tx_ring->next_to_clean = 0; 1196 1197 ew32(TDBAL(0), ((u64)tx_ring->dma & 0x00000000FFFFFFFF)); 1198 ew32(TDBAH(0), ((u64)tx_ring->dma >> 32)); 1199 ew32(TDLEN(0), tx_ring->count * sizeof(struct e1000_tx_desc)); 1200 ew32(TDH(0), 0); 1201 ew32(TDT(0), 0); 1202 ew32(TCTL, E1000_TCTL_PSP | E1000_TCTL_EN | E1000_TCTL_MULR | 1203 E1000_COLLISION_THRESHOLD << E1000_CT_SHIFT | 1204 E1000_COLLISION_DISTANCE << E1000_COLD_SHIFT); 1205 1206 for (i = 0; i < tx_ring->count; i++) { 1207 struct e1000_tx_desc *tx_desc = E1000_TX_DESC(*tx_ring, i); 1208 struct sk_buff *skb; 1209 unsigned int skb_size = 1024; 1210 1211 skb = alloc_skb(skb_size, GFP_KERNEL); 1212 if (!skb) { 1213 ret_val = 3; 1214 goto err_nomem; 1215 } 1216 skb_put(skb, skb_size); 1217 tx_ring->buffer_info[i].skb = skb; 1218 tx_ring->buffer_info[i].length = skb->len; 1219 tx_ring->buffer_info[i].dma = 1220 dma_map_single(&pdev->dev, skb->data, skb->len, 1221 DMA_TO_DEVICE); 1222 if (dma_mapping_error(&pdev->dev, 1223 tx_ring->buffer_info[i].dma)) { 1224 ret_val = 4; 1225 goto err_nomem; 1226 } 1227 tx_desc->buffer_addr = cpu_to_le64(tx_ring->buffer_info[i].dma); 1228 tx_desc->lower.data = cpu_to_le32(skb->len); 1229 tx_desc->lower.data |= cpu_to_le32(E1000_TXD_CMD_EOP | 1230 E1000_TXD_CMD_IFCS | 1231 E1000_TXD_CMD_RS); 1232 tx_desc->upper.data = 0; 1233 } 1234 1235 /* Setup Rx descriptor ring and Rx buffers */ 1236 1237 if (!rx_ring->count) 1238 rx_ring->count = E1000_DEFAULT_RXD; 1239 1240 rx_ring->buffer_info = kcalloc(rx_ring->count, 1241 sizeof(struct e1000_buffer), GFP_KERNEL); 1242 if (!rx_ring->buffer_info) { 1243 ret_val = 5; 1244 goto err_nomem; 1245 } 1246 1247 rx_ring->size = rx_ring->count * sizeof(union e1000_rx_desc_extended); 1248 rx_ring->desc = dma_alloc_coherent(&pdev->dev, rx_ring->size, 1249 &rx_ring->dma, GFP_KERNEL); 1250 if (!rx_ring->desc) { 1251 ret_val = 6; 1252 goto err_nomem; 1253 } 1254 rx_ring->next_to_use = 0; 1255 rx_ring->next_to_clean = 0; 1256 1257 rctl = er32(RCTL); 1258 if (!(adapter->flags2 & FLAG2_NO_DISABLE_RX)) 1259 ew32(RCTL, rctl & ~E1000_RCTL_EN); 1260 ew32(RDBAL(0), ((u64)rx_ring->dma & 0xFFFFFFFF)); 1261 ew32(RDBAH(0), ((u64)rx_ring->dma >> 32)); 1262 ew32(RDLEN(0), rx_ring->size); 1263 ew32(RDH(0), 0); 1264 ew32(RDT(0), 0); 1265 rctl = E1000_RCTL_EN | E1000_RCTL_BAM | E1000_RCTL_SZ_2048 | 1266 E1000_RCTL_UPE | E1000_RCTL_MPE | E1000_RCTL_LPE | 1267 E1000_RCTL_SBP | E1000_RCTL_SECRC | 1268 E1000_RCTL_LBM_NO | E1000_RCTL_RDMTS_HALF | 1269 (adapter->hw.mac.mc_filter_type << E1000_RCTL_MO_SHIFT); 1270 ew32(RCTL, rctl); 1271 1272 for (i = 0; i < rx_ring->count; i++) { 1273 union e1000_rx_desc_extended *rx_desc; 1274 struct sk_buff *skb; 1275 1276 skb = alloc_skb(2048 + NET_IP_ALIGN, GFP_KERNEL); 1277 if (!skb) { 1278 ret_val = 7; 1279 goto err_nomem; 1280 } 1281 skb_reserve(skb, NET_IP_ALIGN); 1282 rx_ring->buffer_info[i].skb = skb; 1283 rx_ring->buffer_info[i].dma = 1284 dma_map_single(&pdev->dev, skb->data, 2048, 1285 DMA_FROM_DEVICE); 1286 if (dma_mapping_error(&pdev->dev, 1287 rx_ring->buffer_info[i].dma)) { 1288 ret_val = 8; 1289 goto err_nomem; 1290 } 1291 rx_desc = E1000_RX_DESC_EXT(*rx_ring, i); 1292 rx_desc->read.buffer_addr = 1293 cpu_to_le64(rx_ring->buffer_info[i].dma); 1294 memset(skb->data, 0x00, skb->len); 1295 } 1296 1297 return 0; 1298 1299err_nomem: 1300 e1000_free_desc_rings(adapter); 1301 return ret_val; 1302} 1303 1304static void e1000_phy_disable_receiver(struct e1000_adapter *adapter) 1305{ 1306 /* Write out to PHY registers 29 and 30 to disable the Receiver. */ 1307 e1e_wphy(&adapter->hw, 29, 0x001F); 1308 e1e_wphy(&adapter->hw, 30, 0x8FFC); 1309 e1e_wphy(&adapter->hw, 29, 0x001A); 1310 e1e_wphy(&adapter->hw, 30, 0x8FF0); 1311} 1312 1313static int e1000_integrated_phy_loopback(struct e1000_adapter *adapter) 1314{ 1315 struct e1000_hw *hw = &adapter->hw; 1316 u32 ctrl_reg = 0; 1317 u16 phy_reg = 0; 1318 s32 ret_val = 0; 1319 1320 hw->mac.autoneg = 0; 1321 1322 if (hw->phy.type == e1000_phy_ife) { 1323 /* force 100, set loopback */ 1324 e1e_wphy(hw, MII_BMCR, 0x6100); 1325 1326 /* Now set up the MAC to the same speed/duplex as the PHY. */ 1327 ctrl_reg = er32(CTRL); 1328 ctrl_reg &= ~E1000_CTRL_SPD_SEL; /* Clear the speed sel bits */ 1329 ctrl_reg |= (E1000_CTRL_FRCSPD | /* Set the Force Speed Bit */ 1330 E1000_CTRL_FRCDPX | /* Set the Force Duplex Bit */ 1331 E1000_CTRL_SPD_100 |/* Force Speed to 100 */ 1332 E1000_CTRL_FD); /* Force Duplex to FULL */ 1333 1334 ew32(CTRL, ctrl_reg); 1335 e1e_flush(); 1336 usleep_range(500, 1000); 1337 1338 return 0; 1339 } 1340 1341 /* Specific PHY configuration for loopback */ 1342 switch (hw->phy.type) { 1343 case e1000_phy_m88: 1344 /* Auto-MDI/MDIX Off */ 1345 e1e_wphy(hw, M88E1000_PHY_SPEC_CTRL, 0x0808); 1346 /* reset to update Auto-MDI/MDIX */ 1347 e1e_wphy(hw, MII_BMCR, 0x9140); 1348 /* autoneg off */ 1349 e1e_wphy(hw, MII_BMCR, 0x8140); 1350 break; 1351 case e1000_phy_gg82563: 1352 e1e_wphy(hw, GG82563_PHY_KMRN_MODE_CTRL, 0x1CC); 1353 break; 1354 case e1000_phy_bm: 1355 /* Set Default MAC Interface speed to 1GB */ 1356 e1e_rphy(hw, PHY_REG(2, 21), &phy_reg); 1357 phy_reg &= ~0x0007; 1358 phy_reg |= 0x006; 1359 e1e_wphy(hw, PHY_REG(2, 21), phy_reg); 1360 /* Assert SW reset for above settings to take effect */ 1361 hw->phy.ops.commit(hw); 1362 usleep_range(1000, 2000); 1363 /* Force Full Duplex */ 1364 e1e_rphy(hw, PHY_REG(769, 16), &phy_reg); 1365 e1e_wphy(hw, PHY_REG(769, 16), phy_reg | 0x000C); 1366 /* Set Link Up (in force link) */ 1367 e1e_rphy(hw, PHY_REG(776, 16), &phy_reg); 1368 e1e_wphy(hw, PHY_REG(776, 16), phy_reg | 0x0040); 1369 /* Force Link */ 1370 e1e_rphy(hw, PHY_REG(769, 16), &phy_reg); 1371 e1e_wphy(hw, PHY_REG(769, 16), phy_reg | 0x0040); 1372 /* Set Early Link Enable */ 1373 e1e_rphy(hw, PHY_REG(769, 20), &phy_reg); 1374 e1e_wphy(hw, PHY_REG(769, 20), phy_reg | 0x0400); 1375 break; 1376 case e1000_phy_82577: 1377 case e1000_phy_82578: 1378 /* Workaround: K1 must be disabled for stable 1Gbps operation */ 1379 ret_val = hw->phy.ops.acquire(hw); 1380 if (ret_val) { 1381 e_err("Cannot setup 1Gbps loopback.\n"); 1382 return ret_val; 1383 } 1384 e1000_configure_k1_ich8lan(hw, false); 1385 hw->phy.ops.release(hw); 1386 break; 1387 case e1000_phy_82579: 1388 /* Disable PHY energy detect power down */ 1389 e1e_rphy(hw, PHY_REG(0, 21), &phy_reg); 1390 e1e_wphy(hw, PHY_REG(0, 21), phy_reg & ~BIT(3)); 1391 /* Disable full chip energy detect */ 1392 e1e_rphy(hw, PHY_REG(776, 18), &phy_reg); 1393 e1e_wphy(hw, PHY_REG(776, 18), phy_reg | 1); 1394 /* Enable loopback on the PHY */ 1395 e1e_wphy(hw, I82577_PHY_LBK_CTRL, 0x8001); 1396 break; 1397 default: 1398 break; 1399 } 1400 1401 /* force 1000, set loopback */ 1402 e1e_wphy(hw, MII_BMCR, 0x4140); 1403 msleep(250); 1404 1405 /* Now set up the MAC to the same speed/duplex as the PHY. */ 1406 ctrl_reg = er32(CTRL); 1407 ctrl_reg &= ~E1000_CTRL_SPD_SEL; /* Clear the speed sel bits */ 1408 ctrl_reg |= (E1000_CTRL_FRCSPD | /* Set the Force Speed Bit */ 1409 E1000_CTRL_FRCDPX | /* Set the Force Duplex Bit */ 1410 E1000_CTRL_SPD_1000 |/* Force Speed to 1000 */ 1411 E1000_CTRL_FD); /* Force Duplex to FULL */ 1412 1413 if (adapter->flags & FLAG_IS_ICH) 1414 ctrl_reg |= E1000_CTRL_SLU; /* Set Link Up */ 1415 1416 if (hw->phy.media_type == e1000_media_type_copper && 1417 hw->phy.type == e1000_phy_m88) { 1418 ctrl_reg |= E1000_CTRL_ILOS; /* Invert Loss of Signal */ 1419 } else { 1420 /* Set the ILOS bit on the fiber Nic if half duplex link is 1421 * detected. 1422 */ 1423 if ((er32(STATUS) & E1000_STATUS_FD) == 0) 1424 ctrl_reg |= (E1000_CTRL_ILOS | E1000_CTRL_SLU); 1425 } 1426 1427 ew32(CTRL, ctrl_reg); 1428 1429 /* Disable the receiver on the PHY so when a cable is plugged in, the 1430 * PHY does not begin to autoneg when a cable is reconnected to the NIC. 1431 */ 1432 if (hw->phy.type == e1000_phy_m88) 1433 e1000_phy_disable_receiver(adapter); 1434 1435 usleep_range(500, 1000); 1436 1437 return 0; 1438} 1439 1440static int e1000_set_82571_fiber_loopback(struct e1000_adapter *adapter) 1441{ 1442 struct e1000_hw *hw = &adapter->hw; 1443 u32 ctrl = er32(CTRL); 1444 int link; 1445 1446 /* special requirements for 82571/82572 fiber adapters */ 1447 1448 /* jump through hoops to make sure link is up because serdes 1449 * link is hardwired up 1450 */ 1451 ctrl |= E1000_CTRL_SLU; 1452 ew32(CTRL, ctrl); 1453 1454 /* disable autoneg */ 1455 ctrl = er32(TXCW); 1456 ctrl &= ~BIT(31); 1457 ew32(TXCW, ctrl); 1458 1459 link = (er32(STATUS) & E1000_STATUS_LU); 1460 1461 if (!link) { 1462 /* set invert loss of signal */ 1463 ctrl = er32(CTRL); 1464 ctrl |= E1000_CTRL_ILOS; 1465 ew32(CTRL, ctrl); 1466 } 1467 1468 /* special write to serdes control register to enable SerDes analog 1469 * loopback 1470 */ 1471 ew32(SCTL, E1000_SCTL_ENABLE_SERDES_LOOPBACK); 1472 e1e_flush(); 1473 usleep_range(10000, 11000); 1474 1475 return 0; 1476} 1477 1478/* only call this for fiber/serdes connections to es2lan */ 1479static int e1000_set_es2lan_mac_loopback(struct e1000_adapter *adapter) 1480{ 1481 struct e1000_hw *hw = &adapter->hw; 1482 u32 ctrlext = er32(CTRL_EXT); 1483 u32 ctrl = er32(CTRL); 1484 1485 /* save CTRL_EXT to restore later, reuse an empty variable (unused 1486 * on mac_type 80003es2lan) 1487 */ 1488 adapter->tx_fifo_head = ctrlext; 1489 1490 /* clear the serdes mode bits, putting the device into mac loopback */ 1491 ctrlext &= ~E1000_CTRL_EXT_LINK_MODE_PCIE_SERDES; 1492 ew32(CTRL_EXT, ctrlext); 1493 1494 /* force speed to 1000/FD, link up */ 1495 ctrl &= ~(E1000_CTRL_SPD_1000 | E1000_CTRL_SPD_100); 1496 ctrl |= (E1000_CTRL_SLU | E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX | 1497 E1000_CTRL_SPD_1000 | E1000_CTRL_FD); 1498 ew32(CTRL, ctrl); 1499 1500 /* set mac loopback */ 1501 ctrl = er32(RCTL); 1502 ctrl |= E1000_RCTL_LBM_MAC; 1503 ew32(RCTL, ctrl); 1504 1505 /* set testing mode parameters (no need to reset later) */ 1506#define KMRNCTRLSTA_OPMODE (0x1F << 16) 1507#define KMRNCTRLSTA_OPMODE_1GB_FD_GMII 0x0582 1508 ew32(KMRNCTRLSTA, 1509 (KMRNCTRLSTA_OPMODE | KMRNCTRLSTA_OPMODE_1GB_FD_GMII)); 1510 1511 return 0; 1512} 1513 1514static int e1000_setup_loopback_test(struct e1000_adapter *adapter) 1515{ 1516 struct e1000_hw *hw = &adapter->hw; 1517 u32 rctl, fext_nvm11, tarc0; 1518 1519 if (hw->mac.type >= e1000_pch_spt) { 1520 fext_nvm11 = er32(FEXTNVM11); 1521 fext_nvm11 |= E1000_FEXTNVM11_DISABLE_MULR_FIX; 1522 ew32(FEXTNVM11, fext_nvm11); 1523 tarc0 = er32(TARC(0)); 1524 /* clear bits 28 & 29 (control of MULR concurrent requests) */ 1525 tarc0 &= 0xcfffffff; 1526 /* set bit 29 (value of MULR requests is now 2) */ 1527 tarc0 |= 0x20000000; 1528 ew32(TARC(0), tarc0); 1529 } 1530 if (hw->phy.media_type == e1000_media_type_fiber || 1531 hw->phy.media_type == e1000_media_type_internal_serdes) { 1532 switch (hw->mac.type) { 1533 case e1000_80003es2lan: 1534 return e1000_set_es2lan_mac_loopback(adapter); 1535 case e1000_82571: 1536 case e1000_82572: 1537 return e1000_set_82571_fiber_loopback(adapter); 1538 default: 1539 rctl = er32(RCTL); 1540 rctl |= E1000_RCTL_LBM_TCVR; 1541 ew32(RCTL, rctl); 1542 return 0; 1543 } 1544 } else if (hw->phy.media_type == e1000_media_type_copper) { 1545 return e1000_integrated_phy_loopback(adapter); 1546 } 1547 1548 return 7; 1549} 1550 1551static void e1000_loopback_cleanup(struct e1000_adapter *adapter) 1552{ 1553 struct e1000_hw *hw = &adapter->hw; 1554 u32 rctl, fext_nvm11, tarc0; 1555 u16 phy_reg; 1556 1557 rctl = er32(RCTL); 1558 rctl &= ~(E1000_RCTL_LBM_TCVR | E1000_RCTL_LBM_MAC); 1559 ew32(RCTL, rctl); 1560 1561 switch (hw->mac.type) { 1562 case e1000_pch_spt: 1563 case e1000_pch_cnp: 1564 case e1000_pch_tgp: 1565 case e1000_pch_adp: 1566 fext_nvm11 = er32(FEXTNVM11); 1567 fext_nvm11 &= ~E1000_FEXTNVM11_DISABLE_MULR_FIX; 1568 ew32(FEXTNVM11, fext_nvm11); 1569 tarc0 = er32(TARC(0)); 1570 /* clear bits 28 & 29 (control of MULR concurrent requests) */ 1571 /* set bit 29 (value of MULR requests is now 0) */ 1572 tarc0 &= 0xcfffffff; 1573 ew32(TARC(0), tarc0); 1574 /* fall through */ 1575 case e1000_80003es2lan: 1576 if (hw->phy.media_type == e1000_media_type_fiber || 1577 hw->phy.media_type == e1000_media_type_internal_serdes) { 1578 /* restore CTRL_EXT, stealing space from tx_fifo_head */ 1579 ew32(CTRL_EXT, adapter->tx_fifo_head); 1580 adapter->tx_fifo_head = 0; 1581 } 1582 /* fall through */ 1583 case e1000_82571: 1584 case e1000_82572: 1585 if (hw->phy.media_type == e1000_media_type_fiber || 1586 hw->phy.media_type == e1000_media_type_internal_serdes) { 1587 ew32(SCTL, E1000_SCTL_DISABLE_SERDES_LOOPBACK); 1588 e1e_flush(); 1589 usleep_range(10000, 11000); 1590 break; 1591 } 1592 /* Fall Through */ 1593 default: 1594 hw->mac.autoneg = 1; 1595 if (hw->phy.type == e1000_phy_gg82563) 1596 e1e_wphy(hw, GG82563_PHY_KMRN_MODE_CTRL, 0x180); 1597 e1e_rphy(hw, MII_BMCR, &phy_reg); 1598 if (phy_reg & BMCR_LOOPBACK) { 1599 phy_reg &= ~BMCR_LOOPBACK; 1600 e1e_wphy(hw, MII_BMCR, phy_reg); 1601 if (hw->phy.ops.commit) 1602 hw->phy.ops.commit(hw); 1603 } 1604 break; 1605 } 1606} 1607 1608static void e1000_create_lbtest_frame(struct sk_buff *skb, 1609 unsigned int frame_size) 1610{ 1611 memset(skb->data, 0xFF, frame_size); 1612 frame_size &= ~1; 1613 memset(&skb->data[frame_size / 2], 0xAA, frame_size / 2 - 1); 1614 memset(&skb->data[frame_size / 2 + 10], 0xBE, 1); 1615 memset(&skb->data[frame_size / 2 + 12], 0xAF, 1); 1616} 1617 1618static int e1000_check_lbtest_frame(struct sk_buff *skb, 1619 unsigned int frame_size) 1620{ 1621 frame_size &= ~1; 1622 if (*(skb->data + 3) == 0xFF) 1623 if ((*(skb->data + frame_size / 2 + 10) == 0xBE) && 1624 (*(skb->data + frame_size / 2 + 12) == 0xAF)) 1625 return 0; 1626 return 13; 1627} 1628 1629static int e1000_run_loopback_test(struct e1000_adapter *adapter) 1630{ 1631 struct e1000_ring *tx_ring = &adapter->test_tx_ring; 1632 struct e1000_ring *rx_ring = &adapter->test_rx_ring; 1633 struct pci_dev *pdev = adapter->pdev; 1634 struct e1000_hw *hw = &adapter->hw; 1635 struct e1000_buffer *buffer_info; 1636 int i, j, k, l; 1637 int lc; 1638 int good_cnt; 1639 int ret_val = 0; 1640 unsigned long time; 1641 1642 ew32(RDT(0), rx_ring->count - 1); 1643 1644 /* Calculate the loop count based on the largest descriptor ring 1645 * The idea is to wrap the largest ring a number of times using 64 1646 * send/receive pairs during each loop 1647 */ 1648 1649 if (rx_ring->count <= tx_ring->count) 1650 lc = ((tx_ring->count / 64) * 2) + 1; 1651 else 1652 lc = ((rx_ring->count / 64) * 2) + 1; 1653 1654 k = 0; 1655 l = 0; 1656 /* loop count loop */ 1657 for (j = 0; j <= lc; j++) { 1658 /* send the packets */ 1659 for (i = 0; i < 64; i++) { 1660 buffer_info = &tx_ring->buffer_info[k]; 1661 1662 e1000_create_lbtest_frame(buffer_info->skb, 1024); 1663 dma_sync_single_for_device(&pdev->dev, 1664 buffer_info->dma, 1665 buffer_info->length, 1666 DMA_TO_DEVICE); 1667 k++; 1668 if (k == tx_ring->count) 1669 k = 0; 1670 } 1671 ew32(TDT(0), k); 1672 e1e_flush(); 1673 msleep(200); 1674 time = jiffies; /* set the start time for the receive */ 1675 good_cnt = 0; 1676 /* receive the sent packets */ 1677 do { 1678 buffer_info = &rx_ring->buffer_info[l]; 1679 1680 dma_sync_single_for_cpu(&pdev->dev, 1681 buffer_info->dma, 2048, 1682 DMA_FROM_DEVICE); 1683 1684 ret_val = e1000_check_lbtest_frame(buffer_info->skb, 1685 1024); 1686 if (!ret_val) 1687 good_cnt++; 1688 l++; 1689 if (l == rx_ring->count) 1690 l = 0; 1691 /* time + 20 msecs (200 msecs on 2.4) is more than 1692 * enough time to complete the receives, if it's 1693 * exceeded, break and error off 1694 */ 1695 } while ((good_cnt < 64) && !time_after(jiffies, time + 20)); 1696 if (good_cnt != 64) { 1697 ret_val = 13; /* ret_val is the same as mis-compare */ 1698 break; 1699 } 1700 if (time_after(jiffies, time + 20)) { 1701 ret_val = 14; /* error code for time out error */ 1702 break; 1703 } 1704 } 1705 return ret_val; 1706} 1707 1708static int e1000_loopback_test(struct e1000_adapter *adapter, u64 *data) 1709{ 1710 struct e1000_hw *hw = &adapter->hw; 1711 1712 /* PHY loopback cannot be performed if SoL/IDER sessions are active */ 1713 if (hw->phy.ops.check_reset_block && 1714 hw->phy.ops.check_reset_block(hw)) { 1715 e_err("Cannot do PHY loopback test when SoL/IDER is active.\n"); 1716 *data = 0; 1717 goto out; 1718 } 1719 1720 *data = e1000_setup_desc_rings(adapter); 1721 if (*data) 1722 goto out; 1723 1724 *data = e1000_setup_loopback_test(adapter); 1725 if (*data) 1726 goto err_loopback; 1727 1728 *data = e1000_run_loopback_test(adapter); 1729 e1000_loopback_cleanup(adapter); 1730 1731err_loopback: 1732 e1000_free_desc_rings(adapter); 1733out: 1734 return *data; 1735} 1736 1737static int e1000_link_test(struct e1000_adapter *adapter, u64 *data) 1738{ 1739 struct e1000_hw *hw = &adapter->hw; 1740 1741 *data = 0; 1742 if (hw->phy.media_type == e1000_media_type_internal_serdes) { 1743 int i = 0; 1744 1745 hw->mac.serdes_has_link = false; 1746 1747 /* On some blade server designs, link establishment 1748 * could take as long as 2-3 minutes 1749 */ 1750 do { 1751 hw->mac.ops.check_for_link(hw); 1752 if (hw->mac.serdes_has_link) 1753 return *data; 1754 msleep(20); 1755 } while (i++ < 3750); 1756 1757 *data = 1; 1758 } else { 1759 hw->mac.ops.check_for_link(hw); 1760 if (hw->mac.autoneg) 1761 /* On some Phy/switch combinations, link establishment 1762 * can take a few seconds more than expected. 1763 */ 1764 msleep_interruptible(5000); 1765 1766 if (!(er32(STATUS) & E1000_STATUS_LU)) 1767 *data = 1; 1768 } 1769 return *data; 1770} 1771 1772static int e1000e_get_sset_count(struct net_device __always_unused *netdev, 1773 int sset) 1774{ 1775 switch (sset) { 1776 case ETH_SS_TEST: 1777 return E1000_TEST_LEN; 1778 case ETH_SS_STATS: 1779 return E1000_STATS_LEN; 1780 default: 1781 return -EOPNOTSUPP; 1782 } 1783} 1784 1785static void e1000_diag_test(struct net_device *netdev, 1786 struct ethtool_test *eth_test, u64 *data) 1787{ 1788 struct e1000_adapter *adapter = netdev_priv(netdev); 1789 u16 autoneg_advertised; 1790 u8 forced_speed_duplex; 1791 u8 autoneg; 1792 bool if_running = netif_running(netdev); 1793 1794 pm_runtime_get_sync(netdev->dev.parent); 1795 1796 set_bit(__E1000_TESTING, &adapter->state); 1797 1798 if (!if_running) { 1799 /* Get control of and reset hardware */ 1800 if (adapter->flags & FLAG_HAS_AMT) 1801 e1000e_ge…
Large files files are truncated, but you can click here to view the full file