1// SPDX-License-Identifier: GPL-2.0 2/* Copyright(c) 1999 - 2006 Intel Corporation. */ 3 4/* ethtool support for e1000 */ 5 6#include "e1000.h" 7#include <linux/jiffies.h> 8#include <linux/uaccess.h> 9 10enum {NETDEV_STATS, E1000_STATS}; 11 12struct e1000_stats { 13 char stat_string[ETH_GSTRING_LEN]; 14 int type; 15 int sizeof_stat; 16 int stat_offset; 17}; 18 19#define E1000_STAT(m) E1000_STATS, \ 20 sizeof(((struct e1000_adapter *)0)->m), \ 21 offsetof(struct e1000_adapter, m) 22#define E1000_NETDEV_STAT(m) NETDEV_STATS, \ 23 sizeof(((struct net_device *)0)->m), \ 24 offsetof(struct net_device, m) 25 26static const struct e1000_stats e1000_gstrings_stats[] = { 27 { "rx_packets", E1000_STAT(stats.gprc) }, 28 { "tx_packets", E1000_STAT(stats.gptc) }, 29 { "rx_bytes", E1000_STAT(stats.gorcl) }, 30 { "tx_bytes", E1000_STAT(stats.gotcl) }, 31 { "rx_broadcast", E1000_STAT(stats.bprc) }, 32 { "tx_broadcast", E1000_STAT(stats.bptc) }, 33 { "rx_multicast", E1000_STAT(stats.mprc) }, 34 { "tx_multicast", E1000_STAT(stats.mptc) }, 35 { "rx_errors", E1000_STAT(stats.rxerrc) }, 36 { "tx_errors", E1000_STAT(stats.txerrc) }, 37 { "tx_dropped", E1000_NETDEV_STAT(stats.tx_dropped) }, 38 { "multicast", E1000_STAT(stats.mprc) }, 39 { "collisions", E1000_STAT(stats.colc) }, 40 { "rx_length_errors", E1000_STAT(stats.rlerrc) }, 41 { "rx_over_errors", E1000_NETDEV_STAT(stats.rx_over_errors) }, 42 { "rx_crc_errors", E1000_STAT(stats.crcerrs) }, 43 { "rx_frame_errors", E1000_NETDEV_STAT(stats.rx_frame_errors) }, 44 { "rx_no_buffer_count", E1000_STAT(stats.rnbc) }, 45 { "rx_missed_errors", E1000_STAT(stats.mpc) }, 46 { "tx_aborted_errors", E1000_STAT(stats.ecol) }, 47 { "tx_carrier_errors", E1000_STAT(stats.tncrs) }, 48 { "tx_fifo_errors", E1000_NETDEV_STAT(stats.tx_fifo_errors) }, 49 { "tx_heartbeat_errors", E1000_NETDEV_STAT(stats.tx_heartbeat_errors) }, 50 { "tx_window_errors", E1000_STAT(stats.latecol) }, 51 { "tx_abort_late_coll", E1000_STAT(stats.latecol) }, 52 { "tx_deferred_ok", E1000_STAT(stats.dc) }, 53 { "tx_single_coll_ok", E1000_STAT(stats.scc) }, 54 { "tx_multi_coll_ok", E1000_STAT(stats.mcc) }, 55 { "tx_timeout_count", E1000_STAT(tx_timeout_count) }, 56 { "tx_restart_queue", E1000_STAT(restart_queue) }, 57 { "rx_long_length_errors", E1000_STAT(stats.roc) }, 58 { "rx_short_length_errors", E1000_STAT(stats.ruc) }, 59 { "rx_align_errors", E1000_STAT(stats.algnerrc) }, 60 { "tx_tcp_seg_good", E1000_STAT(stats.tsctc) }, 61 { "tx_tcp_seg_failed", E1000_STAT(stats.tsctfc) }, 62 { "rx_flow_control_xon", E1000_STAT(stats.xonrxc) }, 63 { "rx_flow_control_xoff", E1000_STAT(stats.xoffrxc) }, 64 { "tx_flow_control_xon", E1000_STAT(stats.xontxc) }, 65 { "tx_flow_control_xoff", E1000_STAT(stats.xofftxc) }, 66 { "rx_long_byte_count", E1000_STAT(stats.gorcl) }, 67 { "rx_csum_offload_good", E1000_STAT(hw_csum_good) }, 68 { "rx_csum_offload_errors", E1000_STAT(hw_csum_err) }, 69 { "alloc_rx_buff_failed", E1000_STAT(alloc_rx_buff_failed) }, 70 { "tx_smbus", E1000_STAT(stats.mgptc) }, 71 { "rx_smbus", E1000_STAT(stats.mgprc) }, 72 { "dropped_smbus", E1000_STAT(stats.mgpdc) }, 73}; 74 75#define E1000_QUEUE_STATS_LEN 0 76#define E1000_GLOBAL_STATS_LEN ARRAY_SIZE(e1000_gstrings_stats) 77#define E1000_STATS_LEN (E1000_GLOBAL_STATS_LEN + E1000_QUEUE_STATS_LEN) 78static const char e1000_gstrings_test[][ETH_GSTRING_LEN] = { 79 "Register test (offline)", "Eeprom test (offline)", 80 "Interrupt test (offline)", "Loopback test (offline)", 81 "Link test (on/offline)" 82}; 83 84#define E1000_TEST_LEN ARRAY_SIZE(e1000_gstrings_test) 85 86static int e1000_get_link_ksettings(struct net_device *netdev, 87 struct ethtool_link_ksettings *cmd) 88{ 89 struct e1000_adapter *adapter = netdev_priv(netdev); 90 struct e1000_hw *hw = &adapter->hw; 91 u32 supported, advertising; 92 93 if (hw->media_type == e1000_media_type_copper) { 94 supported = (SUPPORTED_10baseT_Half | 95 SUPPORTED_10baseT_Full | 96 SUPPORTED_100baseT_Half | 97 SUPPORTED_100baseT_Full | 98 SUPPORTED_1000baseT_Full| 99 SUPPORTED_Autoneg | 100 SUPPORTED_TP); 101 advertising = ADVERTISED_TP; 102 103 if (hw->autoneg == 1) { 104 advertising |= ADVERTISED_Autoneg; 105 /* the e1000 autoneg seems to match ethtool nicely */ 106 advertising |= hw->autoneg_advertised; 107 } 108 109 cmd->base.port = PORT_TP; 110 cmd->base.phy_address = hw->phy_addr; 111 } else { 112 supported = (SUPPORTED_1000baseT_Full | 113 SUPPORTED_FIBRE | 114 SUPPORTED_Autoneg); 115 116 advertising = (ADVERTISED_1000baseT_Full | 117 ADVERTISED_FIBRE | 118 ADVERTISED_Autoneg); 119 120 cmd->base.port = PORT_FIBRE; 121 } 122 123 if (er32(STATUS) & E1000_STATUS_LU) { 124 e1000_get_speed_and_duplex(hw, &adapter->link_speed, 125 &adapter->link_duplex); 126 cmd->base.speed = adapter->link_speed; 127 128 /* unfortunately FULL_DUPLEX != DUPLEX_FULL 129 * and HALF_DUPLEX != DUPLEX_HALF 130 */ 131 if (adapter->link_duplex == FULL_DUPLEX) 132 cmd->base.duplex = DUPLEX_FULL; 133 else 134 cmd->base.duplex = DUPLEX_HALF; 135 } else { 136 cmd->base.speed = SPEED_UNKNOWN; 137 cmd->base.duplex = DUPLEX_UNKNOWN; 138 } 139 140 cmd->base.autoneg = ((hw->media_type == e1000_media_type_fiber) || 141 hw->autoneg) ? AUTONEG_ENABLE : AUTONEG_DISABLE; 142 143 /* MDI-X => 1; MDI => 0 */ 144 if ((hw->media_type == e1000_media_type_copper) && 145 netif_carrier_ok(netdev)) 146 cmd->base.eth_tp_mdix = (!!adapter->phy_info.mdix_mode ? 147 ETH_TP_MDI_X : ETH_TP_MDI); 148 else 149 cmd->base.eth_tp_mdix = ETH_TP_MDI_INVALID; 150 151 if (hw->mdix == AUTO_ALL_MODES) 152 cmd->base.eth_tp_mdix_ctrl = ETH_TP_MDI_AUTO; 153 else 154 cmd->base.eth_tp_mdix_ctrl = hw->mdix; 155 156 ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.supported, 157 supported); 158 ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.advertising, 159 advertising); 160 161 return 0; 162} 163 164static int e1000_set_link_ksettings(struct net_device *netdev, 165 const struct ethtool_link_ksettings *cmd) 166{ 167 struct e1000_adapter *adapter = netdev_priv(netdev); 168 struct e1000_hw *hw = &adapter->hw; 169 u32 advertising; 170 171 ethtool_convert_link_mode_to_legacy_u32(&advertising, 172 cmd->link_modes.advertising); 173 174 /* MDI setting is only allowed when autoneg enabled because 175 * some hardware doesn't allow MDI setting when speed or 176 * duplex is forced. 177 */ 178 if (cmd->base.eth_tp_mdix_ctrl) { 179 if (hw->media_type != e1000_media_type_copper) 180 return -EOPNOTSUPP; 181 182 if ((cmd->base.eth_tp_mdix_ctrl != ETH_TP_MDI_AUTO) && 183 (cmd->base.autoneg != AUTONEG_ENABLE)) { 184 e_err(drv, "forcing MDI/MDI-X state is not supported when link speed and/or duplex are forced\n"); 185 return -EINVAL; 186 } 187 } 188 189 while (test_and_set_bit(__E1000_RESETTING, &adapter->flags)) 190 msleep(1); 191 192 if (cmd->base.autoneg == AUTONEG_ENABLE) { 193 hw->autoneg = 1; 194 if (hw->media_type == e1000_media_type_fiber) 195 hw->autoneg_advertised = ADVERTISED_1000baseT_Full | 196 ADVERTISED_FIBRE | 197 ADVERTISED_Autoneg; 198 else 199 hw->autoneg_advertised = advertising | 200 ADVERTISED_TP | 201 ADVERTISED_Autoneg; 202 } else { 203 u32 speed = cmd->base.speed; 204 /* calling this overrides forced MDI setting */ 205 if (e1000_set_spd_dplx(adapter, speed, cmd->base.duplex)) { 206 clear_bit(__E1000_RESETTING, &adapter->flags); 207 return -EINVAL; 208 } 209 } 210 211 /* MDI-X => 2; MDI => 1; Auto => 3 */ 212 if (cmd->base.eth_tp_mdix_ctrl) { 213 if (cmd->base.eth_tp_mdix_ctrl == ETH_TP_MDI_AUTO) 214 hw->mdix = AUTO_ALL_MODES; 215 else 216 hw->mdix = cmd->base.eth_tp_mdix_ctrl; 217 } 218 219 /* reset the link */ 220 221 if (netif_running(adapter->netdev)) { 222 e1000_down(adapter); 223 e1000_up(adapter); 224 } else { 225 e1000_reset(adapter); 226 } 227 clear_bit(__E1000_RESETTING, &adapter->flags); 228 return 0; 229} 230 231static u32 e1000_get_link(struct net_device *netdev) 232{ 233 struct e1000_adapter *adapter = netdev_priv(netdev); 234 235 /* If the link is not reported up to netdev, interrupts are disabled, 236 * and so the physical link state may have changed since we last 237 * looked. Set get_link_status to make sure that the true link 238 * state is interrogated, rather than pulling a cached and possibly 239 * stale link state from the driver. 240 */ 241 if (!netif_carrier_ok(netdev)) 242 adapter->hw.get_link_status = 1; 243 244 return e1000_has_link(adapter); 245} 246 247static void e1000_get_pauseparam(struct net_device *netdev, 248 struct ethtool_pauseparam *pause) 249{ 250 struct e1000_adapter *adapter = netdev_priv(netdev); 251 struct e1000_hw *hw = &adapter->hw; 252 253 pause->autoneg = 254 (adapter->fc_autoneg ? AUTONEG_ENABLE : AUTONEG_DISABLE); 255 256 if (hw->fc == E1000_FC_RX_PAUSE) { 257 pause->rx_pause = 1; 258 } else if (hw->fc == E1000_FC_TX_PAUSE) { 259 pause->tx_pause = 1; 260 } else if (hw->fc == E1000_FC_FULL) { 261 pause->rx_pause = 1; 262 pause->tx_pause = 1; 263 } 264} 265 266static int e1000_set_pauseparam(struct net_device *netdev, 267 struct ethtool_pauseparam *pause) 268{ 269 struct e1000_adapter *adapter = netdev_priv(netdev); 270 struct e1000_hw *hw = &adapter->hw; 271 int retval = 0; 272 273 adapter->fc_autoneg = pause->autoneg; 274 275 while (test_and_set_bit(__E1000_RESETTING, &adapter->flags)) 276 msleep(1); 277 278 if (pause->rx_pause && pause->tx_pause) 279 hw->fc = E1000_FC_FULL; 280 else if (pause->rx_pause && !pause->tx_pause) 281 hw->fc = E1000_FC_RX_PAUSE; 282 else if (!pause->rx_pause && pause->tx_pause) 283 hw->fc = E1000_FC_TX_PAUSE; 284 else if (!pause->rx_pause && !pause->tx_pause) 285 hw->fc = E1000_FC_NONE; 286 287 hw->original_fc = hw->fc; 288 289 if (adapter->fc_autoneg == AUTONEG_ENABLE) { 290 if (netif_running(adapter->netdev)) { 291 e1000_down(adapter); 292 e1000_up(adapter); 293 } else { 294 e1000_reset(adapter); 295 } 296 } else 297 retval = ((hw->media_type == e1000_media_type_fiber) ? 298 e1000_setup_link(hw) : e1000_force_mac_fc(hw)); 299 300 clear_bit(__E1000_RESETTING, &adapter->flags); 301 return retval; 302} 303 304static u32 e1000_get_msglevel(struct net_device *netdev) 305{ 306 struct e1000_adapter *adapter = netdev_priv(netdev); 307 308 return adapter->msg_enable; 309} 310 311static void e1000_set_msglevel(struct net_device *netdev, u32 data) 312{ 313 struct e1000_adapter *adapter = netdev_priv(netdev); 314 315 adapter->msg_enable = data; 316} 317 318static int e1000_get_regs_len(struct net_device *netdev) 319{ 320#define E1000_REGS_LEN 32 321 return E1000_REGS_LEN * sizeof(u32); 322} 323 324static void e1000_get_regs(struct net_device *netdev, struct ethtool_regs *regs, 325 void *p) 326{ 327 struct e1000_adapter *adapter = netdev_priv(netdev); 328 struct e1000_hw *hw = &adapter->hw; 329 u32 *regs_buff = p; 330 u16 phy_data; 331 332 memset(p, 0, E1000_REGS_LEN * sizeof(u32)); 333 334 regs->version = (1 << 24) | (hw->revision_id << 16) | hw->device_id; 335 336 regs_buff[0] = er32(CTRL); 337 regs_buff[1] = er32(STATUS); 338 339 regs_buff[2] = er32(RCTL); 340 regs_buff[3] = er32(RDLEN); 341 regs_buff[4] = er32(RDH); 342 regs_buff[5] = er32(RDT); 343 regs_buff[6] = er32(RDTR); 344 345 regs_buff[7] = er32(TCTL); 346 regs_buff[8] = er32(TDLEN); 347 regs_buff[9] = er32(TDH); 348 regs_buff[10] = er32(TDT); 349 regs_buff[11] = er32(TIDV); 350 351 regs_buff[12] = hw->phy_type; /* PHY type (IGP=1, M88=0) */ 352 if (hw->phy_type == e1000_phy_igp) { 353 e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT, 354 IGP01E1000_PHY_AGC_A); 355 e1000_read_phy_reg(hw, IGP01E1000_PHY_AGC_A & 356 IGP01E1000_PHY_PAGE_SELECT, &phy_data); 357 regs_buff[13] = (u32)phy_data; /* cable length */ 358 e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT, 359 IGP01E1000_PHY_AGC_B); 360 e1000_read_phy_reg(hw, IGP01E1000_PHY_AGC_B & 361 IGP01E1000_PHY_PAGE_SELECT, &phy_data); 362 regs_buff[14] = (u32)phy_data; /* cable length */ 363 e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT, 364 IGP01E1000_PHY_AGC_C); 365 e1000_read_phy_reg(hw, IGP01E1000_PHY_AGC_C & 366 IGP01E1000_PHY_PAGE_SELECT, &phy_data); 367 regs_buff[15] = (u32)phy_data; /* cable length */ 368 e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT, 369 IGP01E1000_PHY_AGC_D); 370 e1000_read_phy_reg(hw, IGP01E1000_PHY_AGC_D & 371 IGP01E1000_PHY_PAGE_SELECT, &phy_data); 372 regs_buff[16] = (u32)phy_data; /* cable length */ 373 regs_buff[17] = 0; /* extended 10bt distance (not needed) */ 374 e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT, 0x0); 375 e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_STATUS & 376 IGP01E1000_PHY_PAGE_SELECT, &phy_data); 377 regs_buff[18] = (u32)phy_data; /* cable polarity */ 378 e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT, 379 IGP01E1000_PHY_PCS_INIT_REG); 380 e1000_read_phy_reg(hw, IGP01E1000_PHY_PCS_INIT_REG & 381 IGP01E1000_PHY_PAGE_SELECT, &phy_data); 382 regs_buff[19] = (u32)phy_data; /* cable polarity */ 383 regs_buff[20] = 0; /* polarity correction enabled (always) */ 384 regs_buff[22] = 0; /* phy receive errors (unavailable) */ 385 regs_buff[23] = regs_buff[18]; /* mdix mode */ 386 e1000_write_phy_reg(hw, IGP01E1000_PHY_PAGE_SELECT, 0x0); 387 } else { 388 e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_STATUS, &phy_data); 389 regs_buff[13] = (u32)phy_data; /* cable length */ 390 regs_buff[14] = 0; /* Dummy (to align w/ IGP phy reg dump) */ 391 regs_buff[15] = 0; /* Dummy (to align w/ IGP phy reg dump) */ 392 regs_buff[16] = 0; /* Dummy (to align w/ IGP phy reg dump) */ 393 e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, &phy_data); 394 regs_buff[17] = (u32)phy_data; /* extended 10bt distance */ 395 regs_buff[18] = regs_buff[13]; /* cable polarity */ 396 regs_buff[19] = 0; /* Dummy (to align w/ IGP phy reg dump) */ 397 regs_buff[20] = regs_buff[17]; /* polarity correction */ 398 /* phy receive errors */ 399 regs_buff[22] = adapter->phy_stats.receive_errors; 400 regs_buff[23] = regs_buff[13]; /* mdix mode */ 401 } 402 regs_buff[21] = adapter->phy_stats.idle_errors; /* phy idle errors */ 403 e1000_read_phy_reg(hw, PHY_1000T_STATUS, &phy_data); 404 regs_buff[24] = (u32)phy_data; /* phy local receiver status */ 405 regs_buff[25] = regs_buff[24]; /* phy remote receiver status */ 406 if (hw->mac_type >= e1000_82540 && 407 hw->media_type == e1000_media_type_copper) { 408 regs_buff[26] = er32(MANC); 409 } 410} 411 412static int e1000_get_eeprom_len(struct net_device *netdev) 413{ 414 struct e1000_adapter *adapter = netdev_priv(netdev); 415 struct e1000_hw *hw = &adapter->hw; 416 417 return hw->eeprom.word_size * 2; 418} 419 420static int e1000_get_eeprom(struct net_device *netdev, 421 struct ethtool_eeprom *eeprom, u8 *bytes) 422{ 423 struct e1000_adapter *adapter = netdev_priv(netdev); 424 struct e1000_hw *hw = &adapter->hw; 425 u16 *eeprom_buff; 426 int first_word, last_word; 427 int ret_val = 0; 428 u16 i; 429 430 if (eeprom->len == 0) 431 return -EINVAL; 432 433 eeprom->magic = hw->vendor_id | (hw->device_id << 16); 434 435 first_word = eeprom->offset >> 1; 436 last_word = (eeprom->offset + eeprom->len - 1) >> 1; 437 438 eeprom_buff = kmalloc_array(last_word - first_word + 1, sizeof(u16), 439 GFP_KERNEL); 440 if (!eeprom_buff) 441 return -ENOMEM; 442 443 if (hw->eeprom.type == e1000_eeprom_spi) 444 ret_val = e1000_read_eeprom(hw, first_word, 445 last_word - first_word + 1, 446 eeprom_buff); 447 else { 448 for (i = 0; i < last_word - first_word + 1; i++) { 449 ret_val = e1000_read_eeprom(hw, first_word + i, 1, 450 &eeprom_buff[i]); 451 if (ret_val) 452 break; 453 } 454 } 455 456 /* Device's eeprom is always little-endian, word addressable */ 457 for (i = 0; i < last_word - first_word + 1; i++) 458 le16_to_cpus(&eeprom_buff[i]); 459 460 memcpy(bytes, (u8 *)eeprom_buff + (eeprom->offset & 1), 461 eeprom->len); 462 kfree(eeprom_buff); 463 464 return ret_val; 465} 466 467static int e1000_set_eeprom(struct net_device *netdev, 468 struct ethtool_eeprom *eeprom, u8 *bytes) 469{ 470 struct e1000_adapter *adapter = netdev_priv(netdev); 471 struct e1000_hw *hw = &adapter->hw; 472 u16 *eeprom_buff; 473 void *ptr; 474 int max_len, first_word, last_word, ret_val = 0; 475 u16 i; 476 477 if (eeprom->len == 0) 478 return -EOPNOTSUPP; 479 480 if (eeprom->magic != (hw->vendor_id | (hw->device_id << 16))) 481 return -EFAULT; 482 483 max_len = hw->eeprom.word_size * 2; 484 485 first_word = eeprom->offset >> 1; 486 last_word = (eeprom->offset + eeprom->len - 1) >> 1; 487 eeprom_buff = kmalloc(max_len, GFP_KERNEL); 488 if (!eeprom_buff) 489 return -ENOMEM; 490 491 ptr = (void *)eeprom_buff; 492 493 if (eeprom->offset & 1) { 494 /* need read/modify/write of first changed EEPROM word 495 * only the second byte of the word is being modified 496 */ 497 ret_val = e1000_read_eeprom(hw, first_word, 1, 498 &eeprom_buff[0]); 499 ptr++; 500 } 501 if (((eeprom->offset + eeprom->len) & 1) && (ret_val == 0)) { 502 /* need read/modify/write of last changed EEPROM word 503 * only the first byte of the word is being modified 504 */ 505 ret_val = e1000_read_eeprom(hw, last_word, 1, 506 &eeprom_buff[last_word - first_word]); 507 } 508 509 /* Device's eeprom is always little-endian, word addressable */ 510 for (i = 0; i < last_word - first_word + 1; i++) 511 le16_to_cpus(&eeprom_buff[i]); 512 513 memcpy(ptr, bytes, eeprom->len); 514 515 for (i = 0; i < last_word - first_word + 1; i++) 516 cpu_to_le16s(&eeprom_buff[i]); 517 518 ret_val = e1000_write_eeprom(hw, first_word, 519 last_word - first_word + 1, eeprom_buff); 520 521 /* Update the checksum over the first part of the EEPROM if needed */ 522 if ((ret_val == 0) && (first_word <= EEPROM_CHECKSUM_REG)) 523 e1000_update_eeprom_checksum(hw); 524 525 kfree(eeprom_buff); 526 return ret_val; 527} 528 529static void e1000_get_drvinfo(struct net_device *netdev, 530 struct ethtool_drvinfo *drvinfo) 531{ 532 struct e1000_adapter *adapter = netdev_priv(netdev); 533 534 strscpy(drvinfo->driver, e1000_driver_name, 535 sizeof(drvinfo->driver)); 536 537 strscpy(drvinfo->bus_info, pci_name(adapter->pdev), 538 sizeof(drvinfo->bus_info)); 539} 540 541static void e1000_get_ringparam(struct net_device *netdev, 542 struct ethtool_ringparam *ring, 543 struct kernel_ethtool_ringparam *kernel_ring, 544 struct netlink_ext_ack *extack) 545{ 546 struct e1000_adapter *adapter = netdev_priv(netdev); 547 struct e1000_hw *hw = &adapter->hw; 548 e1000_mac_type mac_type = hw->mac_type; 549 struct e1000_tx_ring *txdr = adapter->tx_ring; 550 struct e1000_rx_ring *rxdr = adapter->rx_ring; 551 552 ring->rx_max_pending = (mac_type < e1000_82544) ? E1000_MAX_RXD : 553 E1000_MAX_82544_RXD; 554 ring->tx_max_pending = (mac_type < e1000_82544) ? E1000_MAX_TXD : 555 E1000_MAX_82544_TXD; 556 ring->rx_pending = rxdr->count; 557 ring->tx_pending = txdr->count; 558} 559 560static int e1000_set_ringparam(struct net_device *netdev, 561 struct ethtool_ringparam *ring, 562 struct kernel_ethtool_ringparam *kernel_ring, 563 struct netlink_ext_ack *extack) 564{ 565 struct e1000_adapter *adapter = netdev_priv(netdev); 566 struct e1000_hw *hw = &adapter->hw; 567 e1000_mac_type mac_type = hw->mac_type; 568 struct e1000_tx_ring *txdr, *tx_old; 569 struct e1000_rx_ring *rxdr, *rx_old; 570 int i, err; 571 572 if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending)) 573 return -EINVAL; 574 575 while (test_and_set_bit(__E1000_RESETTING, &adapter->flags)) 576 msleep(1); 577 578 if (netif_running(adapter->netdev)) 579 e1000_down(adapter); 580 581 tx_old = adapter->tx_ring; 582 rx_old = adapter->rx_ring; 583 584 err = -ENOMEM; 585 txdr = kcalloc(adapter->num_tx_queues, sizeof(struct e1000_tx_ring), 586 GFP_KERNEL); 587 if (!txdr) 588 goto err_alloc_tx; 589 590 rxdr = kcalloc(adapter->num_rx_queues, sizeof(struct e1000_rx_ring), 591 GFP_KERNEL); 592 if (!rxdr) 593 goto err_alloc_rx; 594 595 adapter->tx_ring = txdr; 596 adapter->rx_ring = rxdr; 597 598 rxdr->count = max(ring->rx_pending, (u32)E1000_MIN_RXD); 599 rxdr->count = min(rxdr->count, (u32)(mac_type < e1000_82544 ? 600 E1000_MAX_RXD : E1000_MAX_82544_RXD)); 601 rxdr->count = ALIGN(rxdr->count, REQ_RX_DESCRIPTOR_MULTIPLE); 602 txdr->count = max(ring->tx_pending, (u32)E1000_MIN_TXD); 603 txdr->count = min(txdr->count, (u32)(mac_type < e1000_82544 ? 604 E1000_MAX_TXD : E1000_MAX_82544_TXD)); 605 txdr->count = ALIGN(txdr->count, REQ_TX_DESCRIPTOR_MULTIPLE); 606 607 for (i = 0; i < adapter->num_tx_queues; i++) 608 txdr[i].count = txdr->count; 609 for (i = 0; i < adapter->num_rx_queues; i++) 610 rxdr[i].count = rxdr->count; 611 612 err = 0; 613 if (netif_running(adapter->netdev)) { 614 /* Try to get new resources before deleting old */ 615 err = e1000_setup_all_rx_resources(adapter); 616 if (err) 617 goto err_setup_rx; 618 err = e1000_setup_all_tx_resources(adapter); 619 if (err) 620 goto err_setup_tx; 621 622 /* save the new, restore the old in order to free it, 623 * then restore the new back again 624 */ 625 626 adapter->rx_ring = rx_old; 627 adapter->tx_ring = tx_old; 628 e1000_free_all_rx_resources(adapter); 629 e1000_free_all_tx_resources(adapter); 630 adapter->rx_ring = rxdr; 631 adapter->tx_ring = txdr; 632 err = e1000_up(adapter); 633 } 634 kfree(tx_old); 635 kfree(rx_old); 636 637 clear_bit(__E1000_RESETTING, &adapter->flags); 638 return err; 639 640err_setup_tx: 641 e1000_free_all_rx_resources(adapter); 642err_setup_rx: 643 adapter->rx_ring = rx_old; 644 adapter->tx_ring = tx_old; 645 kfree(rxdr); 646err_alloc_rx: 647 kfree(txdr); 648err_alloc_tx: 649 if (netif_running(adapter->netdev)) 650 e1000_up(adapter); 651 clear_bit(__E1000_RESETTING, &adapter->flags); 652 return err; 653} 654 655static bool reg_pattern_test(struct e1000_adapter *adapter, u64 *data, int reg, 656 u32 mask, u32 write) 657{ 658 struct e1000_hw *hw = &adapter->hw; 659 static const u32 test[] = { 660 0x5A5A5A5A, 0xA5A5A5A5, 0x00000000, 0xFFFFFFFF 661 }; 662 u8 __iomem *address = hw->hw_addr + reg; 663 u32 read; 664 int i; 665 666 for (i = 0; i < ARRAY_SIZE(test); i++) { 667 writel(write & test[i], address); 668 read = readl(address); 669 if (read != (write & test[i] & mask)) { 670 e_err(drv, "pattern test reg %04X failed: " 671 "got 0x%08X expected 0x%08X\n", 672 reg, read, (write & test[i] & mask)); 673 *data = reg; 674 return true; 675 } 676 } 677 return false; 678} 679 680static bool reg_set_and_check(struct e1000_adapter *adapter, u64 *data, int reg, 681 u32 mask, u32 write) 682{ 683 struct e1000_hw *hw = &adapter->hw; 684 u8 __iomem *address = hw->hw_addr + reg; 685 u32 read; 686 687 writel(write & mask, address); 688 read = readl(address); 689 if ((read & mask) != (write & mask)) { 690 e_err(drv, "set/check reg %04X test failed: " 691 "got 0x%08X expected 0x%08X\n", 692 reg, (read & mask), (write & mask)); 693 *data = reg; 694 return true; 695 } 696 return false; 697} 698 699#define REG_PATTERN_TEST(reg, mask, write) \ 700 do { \ 701 if (reg_pattern_test(adapter, data, \ 702 (hw->mac_type >= e1000_82543) \ 703 ? E1000_##reg : E1000_82542_##reg, \ 704 mask, write)) \ 705 return 1; \ 706 } while (0) 707 708#define REG_SET_AND_CHECK(reg, mask, write) \ 709 do { \ 710 if (reg_set_and_check(adapter, data, \ 711 (hw->mac_type >= e1000_82543) \ 712 ? E1000_##reg : E1000_82542_##reg, \ 713 mask, write)) \ 714 return 1; \ 715 } while (0) 716 717static int e1000_reg_test(struct e1000_adapter *adapter, u64 *data) 718{ 719 u32 value, before, after; 720 u32 i, toggle; 721 struct e1000_hw *hw = &adapter->hw; 722 723 /* The status register is Read Only, so a write should fail. 724 * Some bits that get toggled are ignored. 725 */ 726 727 /* there are several bits on newer hardware that are r/w */ 728 toggle = 0xFFFFF833; 729 730 before = er32(STATUS); 731 value = (er32(STATUS) & toggle); 732 ew32(STATUS, toggle); 733 after = er32(STATUS) & toggle; 734 if (value != after) { 735 e_err(drv, "failed STATUS register test got: " 736 "0x%08X expected: 0x%08X\n", after, value); 737 *data = 1; 738 return 1; 739 } 740 /* restore previous status */ 741 ew32(STATUS, before); 742 743 REG_PATTERN_TEST(FCAL, 0xFFFFFFFF, 0xFFFFFFFF); 744 REG_PATTERN_TEST(FCAH, 0x0000FFFF, 0xFFFFFFFF); 745 REG_PATTERN_TEST(FCT, 0x0000FFFF, 0xFFFFFFFF); 746 REG_PATTERN_TEST(VET, 0x0000FFFF, 0xFFFFFFFF); 747 748 REG_PATTERN_TEST(RDTR, 0x0000FFFF, 0xFFFFFFFF); 749 REG_PATTERN_TEST(RDBAH, 0xFFFFFFFF, 0xFFFFFFFF); 750 REG_PATTERN_TEST(RDLEN, 0x000FFF80, 0x000FFFFF); 751 REG_PATTERN_TEST(RDH, 0x0000FFFF, 0x0000FFFF); 752 REG_PATTERN_TEST(RDT, 0x0000FFFF, 0x0000FFFF); 753 REG_PATTERN_TEST(FCRTH, 0x0000FFF8, 0x0000FFF8); 754 REG_PATTERN_TEST(FCTTV, 0x0000FFFF, 0x0000FFFF); 755 REG_PATTERN_TEST(TIPG, 0x3FFFFFFF, 0x3FFFFFFF); 756 REG_PATTERN_TEST(TDBAH, 0xFFFFFFFF, 0xFFFFFFFF); 757 REG_PATTERN_TEST(TDLEN, 0x000FFF80, 0x000FFFFF); 758 759 REG_SET_AND_CHECK(RCTL, 0xFFFFFFFF, 0x00000000); 760 761 before = 0x06DFB3FE; 762 REG_SET_AND_CHECK(RCTL, before, 0x003FFFFB); 763 REG_SET_AND_CHECK(TCTL, 0xFFFFFFFF, 0x00000000); 764 765 if (hw->mac_type >= e1000_82543) { 766 REG_SET_AND_CHECK(RCTL, before, 0xFFFFFFFF); 767 REG_PATTERN_TEST(RDBAL, 0xFFFFFFF0, 0xFFFFFFFF); 768 REG_PATTERN_TEST(TXCW, 0xC000FFFF, 0x0000FFFF); 769 REG_PATTERN_TEST(TDBAL, 0xFFFFFFF0, 0xFFFFFFFF); 770 REG_PATTERN_TEST(TIDV, 0x0000FFFF, 0x0000FFFF); 771 value = E1000_RAR_ENTRIES; 772 for (i = 0; i < value; i++) { 773 REG_PATTERN_TEST(RA + (((i << 1) + 1) << 2), 774 0x8003FFFF, 0xFFFFFFFF); 775 } 776 } else { 777 REG_SET_AND_CHECK(RCTL, 0xFFFFFFFF, 0x01FFFFFF); 778 REG_PATTERN_TEST(RDBAL, 0xFFFFF000, 0xFFFFFFFF); 779 REG_PATTERN_TEST(TXCW, 0x0000FFFF, 0x0000FFFF); 780 REG_PATTERN_TEST(TDBAL, 0xFFFFF000, 0xFFFFFFFF); 781 } 782 783 value = E1000_MC_TBL_SIZE; 784 for (i = 0; i < value; i++) 785 REG_PATTERN_TEST(MTA + (i << 2), 0xFFFFFFFF, 0xFFFFFFFF); 786 787 *data = 0; 788 return 0; 789} 790 791static int e1000_eeprom_test(struct e1000_adapter *adapter, u64 *data) 792{ 793 struct e1000_hw *hw = &adapter->hw; 794 u16 temp; 795 u16 checksum = 0; 796 u16 i; 797 798 *data = 0; 799 /* Read and add up the contents of the EEPROM */ 800 for (i = 0; i < (EEPROM_CHECKSUM_REG + 1); i++) { 801 if ((e1000_read_eeprom(hw, i, 1, &temp)) < 0) { 802 *data = 1; 803 break; 804 } 805 checksum += temp; 806 } 807 808 /* If Checksum is not Correct return error else test passed */ 809 if ((checksum != (u16)EEPROM_SUM) && !(*data)) 810 *data = 2; 811 812 return *data; 813} 814 815static irqreturn_t e1000_test_intr(int irq, void *data) 816{ 817 struct net_device *netdev = (struct net_device *)data; 818 struct e1000_adapter *adapter = netdev_priv(netdev); 819 struct e1000_hw *hw = &adapter->hw; 820 821 adapter->test_icr |= er32(ICR); 822 823 return IRQ_HANDLED; 824} 825 826static int e1000_intr_test(struct e1000_adapter *adapter, u64 *data) 827{ 828 struct net_device *netdev = adapter->netdev; 829 u32 mask, i = 0; 830 bool shared_int = true; 831 u32 irq = adapter->pdev->irq; 832 struct e1000_hw *hw = &adapter->hw; 833 834 *data = 0; 835 836 /* NOTE: we don't test MSI interrupts here, yet 837 * Hook up test interrupt handler just for this test 838 */ 839 if (!request_irq(irq, e1000_test_intr, IRQF_PROBE_SHARED, netdev->name, 840 netdev)) 841 shared_int = false; 842 else if (request_irq(irq, e1000_test_intr, IRQF_SHARED, 843 netdev->name, netdev)) { 844 *data = 1; 845 return -1; 846 } 847 e_info(hw, "testing %s interrupt\n", (shared_int ? 848 "shared" : "unshared")); 849 850 /* Disable all the interrupts */ 851 ew32(IMC, 0xFFFFFFFF); 852 E1000_WRITE_FLUSH(); 853 msleep(10); 854 855 /* Test each interrupt */ 856 for (; i < 10; i++) { 857 /* Interrupt to test */ 858 mask = 1 << i; 859 860 if (!shared_int) { 861 /* Disable the interrupt to be reported in 862 * the cause register and then force the same 863 * interrupt and see if one gets posted. If 864 * an interrupt was posted to the bus, the 865 * test failed. 866 */ 867 adapter->test_icr = 0; 868 ew32(IMC, mask); 869 ew32(ICS, mask); 870 E1000_WRITE_FLUSH(); 871 msleep(10); 872 873 if (adapter->test_icr & mask) { 874 *data = 3; 875 break; 876 } 877 } 878 879 /* Enable the interrupt to be reported in 880 * the cause register and then force the same 881 * interrupt and see if one gets posted. If 882 * an interrupt was not posted to the bus, the 883 * test failed. 884 */ 885 adapter->test_icr = 0; 886 ew32(IMS, mask); 887 ew32(ICS, mask); 888 E1000_WRITE_FLUSH(); 889 msleep(10); 890 891 if (!(adapter->test_icr & mask)) { 892 *data = 4; 893 break; 894 } 895 896 if (!shared_int) { 897 /* Disable the other interrupts to be reported in 898 * the cause register and then force the other 899 * interrupts and see if any get posted. If 900 * an interrupt was posted to the bus, the 901 * test failed. 902 */ 903 adapter->test_icr = 0; 904 ew32(IMC, ~mask & 0x00007FFF); 905 ew32(ICS, ~mask & 0x00007FFF); 906 E1000_WRITE_FLUSH(); 907 msleep(10); 908 909 if (adapter->test_icr) { 910 *data = 5; 911 break; 912 } 913 } 914 } 915 916 /* Disable all the interrupts */ 917 ew32(IMC, 0xFFFFFFFF); 918 E1000_WRITE_FLUSH(); 919 msleep(10); 920 921 /* Unhook test interrupt handler */ 922 free_irq(irq, netdev); 923 924 return *data; 925} 926 927static void e1000_free_desc_rings(struct e1000_adapter *adapter) 928{ 929 struct e1000_tx_ring *txdr = &adapter->test_tx_ring; 930 struct e1000_rx_ring *rxdr = &adapter->test_rx_ring; 931 struct pci_dev *pdev = adapter->pdev; 932 int i; 933 934 if (txdr->desc && txdr->buffer_info) { 935 for (i = 0; i < txdr->count; i++) { 936 if (txdr->buffer_info[i].dma) 937 dma_unmap_single(&pdev->dev, 938 txdr->buffer_info[i].dma, 939 txdr->buffer_info[i].length, 940 DMA_TO_DEVICE); 941 dev_kfree_skb(txdr->buffer_info[i].skb); 942 } 943 } 944 945 if (rxdr->desc && rxdr->buffer_info) { 946 for (i = 0; i < rxdr->count; i++) { 947 if (rxdr->buffer_info[i].dma) 948 dma_unmap_single(&pdev->dev, 949 rxdr->buffer_info[i].dma, 950 E1000_RXBUFFER_2048, 951 DMA_FROM_DEVICE); 952 kfree(rxdr->buffer_info[i].rxbuf.data); 953 } 954 } 955 956 if (txdr->desc) { 957 dma_free_coherent(&pdev->dev, txdr->size, txdr->desc, 958 txdr->dma); 959 txdr->desc = NULL; 960 } 961 if (rxdr->desc) { 962 dma_free_coherent(&pdev->dev, rxdr->size, rxdr->desc, 963 rxdr->dma); 964 rxdr->desc = NULL; 965 } 966 967 kfree(txdr->buffer_info); 968 txdr->buffer_info = NULL; 969 kfree(rxdr->buffer_info); 970 rxdr->buffer_info = NULL; 971} 972 973static int e1000_setup_desc_rings(struct e1000_adapter *adapter) 974{ 975 struct e1000_hw *hw = &adapter->hw; 976 struct e1000_tx_ring *txdr = &adapter->test_tx_ring; 977 struct e1000_rx_ring *rxdr = &adapter->test_rx_ring; 978 struct pci_dev *pdev = adapter->pdev; 979 u32 rctl; 980 int i, ret_val; 981 982 /* Setup Tx descriptor ring and Tx buffers */ 983 984 if (!txdr->count) 985 txdr->count = E1000_DEFAULT_TXD; 986 987 txdr->buffer_info = kcalloc(txdr->count, sizeof(struct e1000_tx_buffer), 988 GFP_KERNEL); 989 if (!txdr->buffer_info) { 990 ret_val = 1; 991 goto err_nomem; 992 } 993 994 txdr->size = txdr->count * sizeof(struct e1000_tx_desc); 995 txdr->size = ALIGN(txdr->size, 4096); 996 txdr->desc = dma_alloc_coherent(&pdev->dev, txdr->size, &txdr->dma, 997 GFP_KERNEL); 998 if (!txdr->desc) { 999 ret_val = 2; 1000 goto err_nomem; 1001 } 1002 txdr->next_to_use = txdr->next_to_clean = 0; 1003 1004 ew32(TDBAL, ((u64)txdr->dma & 0x00000000FFFFFFFF)); 1005 ew32(TDBAH, ((u64)txdr->dma >> 32)); 1006 ew32(TDLEN, txdr->count * sizeof(struct e1000_tx_desc)); 1007 ew32(TDH, 0); 1008 ew32(TDT, 0); 1009 ew32(TCTL, E1000_TCTL_PSP | E1000_TCTL_EN | 1010 E1000_COLLISION_THRESHOLD << E1000_CT_SHIFT | 1011 E1000_FDX_COLLISION_DISTANCE << E1000_COLD_SHIFT); 1012 1013 for (i = 0; i < txdr->count; i++) { 1014 struct e1000_tx_desc *tx_desc = E1000_TX_DESC(*txdr, i); 1015 struct sk_buff *skb; 1016 unsigned int size = 1024; 1017 1018 skb = alloc_skb(size, GFP_KERNEL); 1019 if (!skb) { 1020 ret_val = 3; 1021 goto err_nomem; 1022 } 1023 skb_put(skb, size); 1024 txdr->buffer_info[i].skb = skb; 1025 txdr->buffer_info[i].length = skb->len; 1026 txdr->buffer_info[i].dma = 1027 dma_map_single(&pdev->dev, skb->data, skb->len, 1028 DMA_TO_DEVICE); 1029 if (dma_mapping_error(&pdev->dev, txdr->buffer_info[i].dma)) { 1030 ret_val = 4; 1031 goto err_nomem; 1032 } 1033 tx_desc->buffer_addr = cpu_to_le64(txdr->buffer_info[i].dma); 1034 tx_desc->lower.data = cpu_to_le32(skb->len); 1035 tx_desc->lower.data |= cpu_to_le32(E1000_TXD_CMD_EOP | 1036 E1000_TXD_CMD_IFCS | 1037 E1000_TXD_CMD_RPS); 1038 tx_desc->upper.data = 0; 1039 } 1040 1041 /* Setup Rx descriptor ring and Rx buffers */ 1042 1043 if (!rxdr->count) 1044 rxdr->count = E1000_DEFAULT_RXD; 1045 1046 rxdr->buffer_info = kcalloc(rxdr->count, sizeof(struct e1000_rx_buffer), 1047 GFP_KERNEL); 1048 if (!rxdr->buffer_info) { 1049 ret_val = 5; 1050 goto err_nomem; 1051 } 1052 1053 rxdr->size = rxdr->count * sizeof(struct e1000_rx_desc); 1054 rxdr->desc = dma_alloc_coherent(&pdev->dev, rxdr->size, &rxdr->dma, 1055 GFP_KERNEL); 1056 if (!rxdr->desc) { 1057 ret_val = 6; 1058 goto err_nomem; 1059 } 1060 rxdr->next_to_use = rxdr->next_to_clean = 0; 1061 1062 rctl = er32(RCTL); 1063 ew32(RCTL, rctl & ~E1000_RCTL_EN); 1064 ew32(RDBAL, ((u64)rxdr->dma & 0xFFFFFFFF)); 1065 ew32(RDBAH, ((u64)rxdr->dma >> 32)); 1066 ew32(RDLEN, rxdr->size); 1067 ew32(RDH, 0); 1068 ew32(RDT, 0); 1069 rctl = E1000_RCTL_EN | E1000_RCTL_BAM | E1000_RCTL_SZ_2048 | 1070 E1000_RCTL_LBM_NO | E1000_RCTL_RDMTS_HALF | 1071 (hw->mc_filter_type << E1000_RCTL_MO_SHIFT); 1072 ew32(RCTL, rctl); 1073 1074 for (i = 0; i < rxdr->count; i++) { 1075 struct e1000_rx_desc *rx_desc = E1000_RX_DESC(*rxdr, i); 1076 u8 *buf; 1077 1078 buf = kzalloc(E1000_RXBUFFER_2048 + NET_SKB_PAD + NET_IP_ALIGN, 1079 GFP_KERNEL); 1080 if (!buf) { 1081 ret_val = 7; 1082 goto err_nomem; 1083 } 1084 rxdr->buffer_info[i].rxbuf.data = buf; 1085 1086 rxdr->buffer_info[i].dma = 1087 dma_map_single(&pdev->dev, 1088 buf + NET_SKB_PAD + NET_IP_ALIGN, 1089 E1000_RXBUFFER_2048, DMA_FROM_DEVICE); 1090 if (dma_mapping_error(&pdev->dev, rxdr->buffer_info[i].dma)) { 1091 ret_val = 8; 1092 goto err_nomem; 1093 } 1094 rx_desc->buffer_addr = cpu_to_le64(rxdr->buffer_info[i].dma); 1095 } 1096 1097 return 0; 1098 1099err_nomem: 1100 e1000_free_desc_rings(adapter); 1101 return ret_val; 1102} 1103 1104static void e1000_phy_disable_receiver(struct e1000_adapter *adapter) 1105{ 1106 struct e1000_hw *hw = &adapter->hw; 1107 1108 /* Write out to PHY registers 29 and 30 to disable the Receiver. */ 1109 e1000_write_phy_reg(hw, 29, 0x001F); 1110 e1000_write_phy_reg(hw, 30, 0x8FFC); 1111 e1000_write_phy_reg(hw, 29, 0x001A); 1112 e1000_write_phy_reg(hw, 30, 0x8FF0); 1113} 1114 1115static void e1000_phy_reset_clk_and_crs(struct e1000_adapter *adapter) 1116{ 1117 struct e1000_hw *hw = &adapter->hw; 1118 u16 phy_reg; 1119 1120 /* Because we reset the PHY above, we need to re-force TX_CLK in the 1121 * Extended PHY Specific Control Register to 25MHz clock. This 1122 * value defaults back to a 2.5MHz clock when the PHY is reset. 1123 */ 1124 e1000_read_phy_reg(hw, M88E1000_EXT_PHY_SPEC_CTRL, &phy_reg); 1125 phy_reg |= M88E1000_EPSCR_TX_CLK_25; 1126 e1000_write_phy_reg(hw, M88E1000_EXT_PHY_SPEC_CTRL, phy_reg); 1127 1128 /* In addition, because of the s/w reset above, we need to enable 1129 * CRS on TX. This must be set for both full and half duplex 1130 * operation. 1131 */ 1132 e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, &phy_reg); 1133 phy_reg |= M88E1000_PSCR_ASSERT_CRS_ON_TX; 1134 e1000_write_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, phy_reg); 1135} 1136 1137static int e1000_nonintegrated_phy_loopback(struct e1000_adapter *adapter) 1138{ 1139 struct e1000_hw *hw = &adapter->hw; 1140 u32 ctrl_reg; 1141 u16 phy_reg; 1142 1143 /* Setup the Device Control Register for PHY loopback test. */ 1144 1145 ctrl_reg = er32(CTRL); 1146 ctrl_reg |= (E1000_CTRL_ILOS | /* Invert Loss-Of-Signal */ 1147 E1000_CTRL_FRCSPD | /* Set the Force Speed Bit */ 1148 E1000_CTRL_FRCDPX | /* Set the Force Duplex Bit */ 1149 E1000_CTRL_SPD_1000 | /* Force Speed to 1000 */ 1150 E1000_CTRL_FD); /* Force Duplex to FULL */ 1151 1152 ew32(CTRL, ctrl_reg); 1153 1154 /* Read the PHY Specific Control Register (0x10) */ 1155 e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, &phy_reg); 1156 1157 /* Clear Auto-Crossover bits in PHY Specific Control Register 1158 * (bits 6:5). 1159 */ 1160 phy_reg &= ~M88E1000_PSCR_AUTO_X_MODE; 1161 e1000_write_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, phy_reg); 1162 1163 /* Perform software reset on the PHY */ 1164 e1000_phy_reset(hw); 1165 1166 /* Have to setup TX_CLK and TX_CRS after software reset */ 1167 e1000_phy_reset_clk_and_crs(adapter); 1168 1169 e1000_write_phy_reg(hw, PHY_CTRL, 0x8100); 1170 1171 /* Wait for reset to complete. */ 1172 udelay(500); 1173 1174 /* Have to setup TX_CLK and TX_CRS after software reset */ 1175 e1000_phy_reset_clk_and_crs(adapter); 1176 1177 /* Write out to PHY registers 29 and 30 to disable the Receiver. */ 1178 e1000_phy_disable_receiver(adapter); 1179 1180 /* Set the loopback bit in the PHY control register. */ 1181 e1000_read_phy_reg(hw, PHY_CTRL, &phy_reg); 1182 phy_reg |= MII_CR_LOOPBACK; 1183 e1000_write_phy_reg(hw, PHY_CTRL, phy_reg); 1184 1185 /* Setup TX_CLK and TX_CRS one more time. */ 1186 e1000_phy_reset_clk_and_crs(adapter); 1187 1188 /* Check Phy Configuration */ 1189 e1000_read_phy_reg(hw, PHY_CTRL, &phy_reg); 1190 if (phy_reg != 0x4100) 1191 return 9; 1192 1193 e1000_read_phy_reg(hw, M88E1000_EXT_PHY_SPEC_CTRL, &phy_reg); 1194 if (phy_reg != 0x0070) 1195 return 10; 1196 1197 e1000_read_phy_reg(hw, 29, &phy_reg); 1198 if (phy_reg != 0x001A) 1199 return 11; 1200 1201 return 0; 1202} 1203 1204static int e1000_integrated_phy_loopback(struct e1000_adapter *adapter) 1205{ 1206 struct e1000_hw *hw = &adapter->hw; 1207 u32 ctrl_reg = 0; 1208 u32 stat_reg = 0; 1209 1210 hw->autoneg = false; 1211 1212 if (hw->phy_type == e1000_phy_m88) { 1213 /* Auto-MDI/MDIX Off */ 1214 e1000_write_phy_reg(hw, 1215 M88E1000_PHY_SPEC_CTRL, 0x0808); 1216 /* reset to update Auto-MDI/MDIX */ 1217 e1000_write_phy_reg(hw, PHY_CTRL, 0x9140); 1218 /* autoneg off */ 1219 e1000_write_phy_reg(hw, PHY_CTRL, 0x8140); 1220 } 1221 1222 ctrl_reg = er32(CTRL); 1223 1224 /* force 1000, set loopback */ 1225 e1000_write_phy_reg(hw, PHY_CTRL, 0x4140); 1226 1227 /* Now set up the MAC to the same speed/duplex as the PHY. */ 1228 ctrl_reg = er32(CTRL); 1229 ctrl_reg &= ~E1000_CTRL_SPD_SEL; /* Clear the speed sel bits */ 1230 ctrl_reg |= (E1000_CTRL_FRCSPD | /* Set the Force Speed Bit */ 1231 E1000_CTRL_FRCDPX | /* Set the Force Duplex Bit */ 1232 E1000_CTRL_SPD_1000 |/* Force Speed to 1000 */ 1233 E1000_CTRL_FD); /* Force Duplex to FULL */ 1234 1235 if (hw->media_type == e1000_media_type_copper && 1236 hw->phy_type == e1000_phy_m88) 1237 ctrl_reg |= E1000_CTRL_ILOS; /* Invert Loss of Signal */ 1238 else { 1239 /* Set the ILOS bit on the fiber Nic is half 1240 * duplex link is detected. 1241 */ 1242 stat_reg = er32(STATUS); 1243 if ((stat_reg & E1000_STATUS_FD) == 0) 1244 ctrl_reg |= (E1000_CTRL_ILOS | E1000_CTRL_SLU); 1245 } 1246 1247 ew32(CTRL, ctrl_reg); 1248 1249 /* Disable the receiver on the PHY so when a cable is plugged in, the 1250 * PHY does not begin to autoneg when a cable is reconnected to the NIC. 1251 */ 1252 if (hw->phy_type == e1000_phy_m88) 1253 e1000_phy_disable_receiver(adapter); 1254 1255 udelay(500); 1256 1257 return 0; 1258} 1259 1260static int e1000_set_phy_loopback(struct e1000_adapter *adapter) 1261{ 1262 struct e1000_hw *hw = &adapter->hw; 1263 u16 phy_reg = 0; 1264 u16 count = 0; 1265 1266 switch (hw->mac_type) { 1267 case e1000_82543: 1268 if (hw->media_type == e1000_media_type_copper) { 1269 /* Attempt to setup Loopback mode on Non-integrated PHY. 1270 * Some PHY registers get corrupted at random, so 1271 * attempt this 10 times. 1272 */ 1273 while (e1000_nonintegrated_phy_loopback(adapter) && 1274 count++ < 10); 1275 if (count < 11) 1276 return 0; 1277 } 1278 break; 1279 1280 case e1000_82544: 1281 case e1000_82540: 1282 case e1000_82545: 1283 case e1000_82545_rev_3: 1284 case e1000_82546: 1285 case e1000_82546_rev_3: 1286 case e1000_82541: 1287 case e1000_82541_rev_2: 1288 case e1000_82547: 1289 case e1000_82547_rev_2: 1290 return e1000_integrated_phy_loopback(adapter); 1291 default: 1292 /* Default PHY loopback work is to read the MII 1293 * control register and assert bit 14 (loopback mode). 1294 */ 1295 e1000_read_phy_reg(hw, PHY_CTRL, &phy_reg); 1296 phy_reg |= MII_CR_LOOPBACK; 1297 e1000_write_phy_reg(hw, PHY_CTRL, phy_reg); 1298 return 0; 1299 } 1300 1301 return 8; 1302} 1303 1304static int e1000_setup_loopback_test(struct e1000_adapter *adapter) 1305{ 1306 struct e1000_hw *hw = &adapter->hw; 1307 u32 rctl; 1308 1309 if (hw->media_type == e1000_media_type_fiber || 1310 hw->media_type == e1000_media_type_internal_serdes) { 1311 switch (hw->mac_type) { 1312 case e1000_82545: 1313 case e1000_82546: 1314 case e1000_82545_rev_3: 1315 case e1000_82546_rev_3: 1316 return e1000_set_phy_loopback(adapter); 1317 default: 1318 rctl = er32(RCTL); 1319 rctl |= E1000_RCTL_LBM_TCVR; 1320 ew32(RCTL, rctl); 1321 return 0; 1322 } 1323 } else if (hw->media_type == e1000_media_type_copper) { 1324 return e1000_set_phy_loopback(adapter); 1325 } 1326 1327 return 7; 1328} 1329 1330static void e1000_loopback_cleanup(struct e1000_adapter *adapter) 1331{ 1332 struct e1000_hw *hw = &adapter->hw; 1333 u32 rctl; 1334 u16 phy_reg; 1335 1336 rctl = er32(RCTL); 1337 rctl &= ~(E1000_RCTL_LBM_TCVR | E1000_RCTL_LBM_MAC); 1338 ew32(RCTL, rctl); 1339 1340 switch (hw->mac_type) { 1341 case e1000_82545: 1342 case e1000_82546: 1343 case e1000_82545_rev_3: 1344 case e1000_82546_rev_3: 1345 default: 1346 hw->autoneg = true; 1347 e1000_read_phy_reg(hw, PHY_CTRL, &phy_reg); 1348 if (phy_reg & MII_CR_LOOPBACK) { 1349 phy_reg &= ~MII_CR_LOOPBACK; 1350 e1000_write_phy_reg(hw, PHY_CTRL, phy_reg); 1351 e1000_phy_reset(hw); 1352 } 1353 break; 1354 } 1355} 1356 1357static void e1000_create_lbtest_frame(struct sk_buff *skb, 1358 unsigned int frame_size) 1359{ 1360 memset(skb->data, 0xFF, frame_size); 1361 frame_size &= ~1; 1362 memset(&skb->data[frame_size / 2], 0xAA, frame_size / 2 - 1); 1363 skb->data[frame_size / 2 + 10] = 0xBE; 1364 skb->data[frame_size / 2 + 12] = 0xAF; 1365} 1366 1367static int e1000_check_lbtest_frame(const unsigned char *data, 1368 unsigned int frame_size) 1369{ 1370 frame_size &= ~1; 1371 if (*(data + 3) == 0xFF) { 1372 if ((*(data + frame_size / 2 + 10) == 0xBE) && 1373 (*(data + frame_size / 2 + 12) == 0xAF)) { 1374 return 0; 1375 } 1376 } 1377 return 13; 1378} 1379 1380static int e1000_run_loopback_test(struct e1000_adapter *adapter) 1381{ 1382 struct e1000_hw *hw = &adapter->hw; 1383 struct e1000_tx_ring *txdr = &adapter->test_tx_ring; 1384 struct e1000_rx_ring *rxdr = &adapter->test_rx_ring; 1385 struct pci_dev *pdev = adapter->pdev; 1386 int i, j, k, l, lc, good_cnt, ret_val = 0; 1387 unsigned long time; 1388 1389 ew32(RDT, rxdr->count - 1); 1390 1391 /* Calculate the loop count based on the largest descriptor ring 1392 * The idea is to wrap the largest ring a number of times using 64 1393 * send/receive pairs during each loop 1394 */ 1395 1396 if (rxdr->count <= txdr->count) 1397 lc = ((txdr->count / 64) * 2) + 1; 1398 else 1399 lc = ((rxdr->count / 64) * 2) + 1; 1400 1401 k = l = 0; 1402 for (j = 0; j <= lc; j++) { /* loop count loop */ 1403 for (i = 0; i < 64; i++) { /* send the packets */ 1404 e1000_create_lbtest_frame(txdr->buffer_info[i].skb, 1405 1024); 1406 dma_sync_single_for_device(&pdev->dev, 1407 txdr->buffer_info[k].dma, 1408 txdr->buffer_info[k].length, 1409 DMA_TO_DEVICE); 1410 if (unlikely(++k == txdr->count)) 1411 k = 0; 1412 } 1413 ew32(TDT, k); 1414 E1000_WRITE_FLUSH(); 1415 msleep(200); 1416 time = jiffies; /* set the start time for the receive */ 1417 good_cnt = 0; 1418 do { /* receive the sent packets */ 1419 dma_sync_single_for_cpu(&pdev->dev, 1420 rxdr->buffer_info[l].dma, 1421 E1000_RXBUFFER_2048, 1422 DMA_FROM_DEVICE); 1423 1424 ret_val = e1000_check_lbtest_frame( 1425 rxdr->buffer_info[l].rxbuf.data + 1426 NET_SKB_PAD + NET_IP_ALIGN, 1427 1024); 1428 if (!ret_val) 1429 good_cnt++; 1430 if (unlikely(++l == rxdr->count)) 1431 l = 0; 1432 /* time + 20 msecs (200 msecs on 2.4) is more than 1433 * enough time to complete the receives, if it's 1434 * exceeded, break and error off 1435 */ 1436 } while (good_cnt < 64 && time_after(time + 20, jiffies)); 1437 1438 if (good_cnt != 64) { 1439 ret_val = 13; /* ret_val is the same as mis-compare */ 1440 break; 1441 } 1442 if (time_after_eq(jiffies, time + 2)) { 1443 ret_val = 14; /* error code for time out error */ 1444 break; 1445 } 1446 } /* end loop count loop */ 1447 return ret_val; 1448} 1449 1450static int e1000_loopback_test(struct e1000_adapter *adapter, u64 *data) 1451{ 1452 *data = e1000_setup_desc_rings(adapter); 1453 if (*data) 1454 goto out; 1455 *data = e1000_setup_loopback_test(adapter); 1456 if (*data) 1457 goto err_loopback; 1458 *data = e1000_run_loopback_test(adapter); 1459 e1000_loopback_cleanup(adapter); 1460 1461err_loopback: 1462 e1000_free_desc_rings(adapter); 1463out: 1464 return *data; 1465} 1466 1467static int e1000_link_test(struct e1000_adapter *adapter, u64 *data) 1468{ 1469 struct e1000_hw *hw = &adapter->hw; 1470 *data = 0; 1471 if (hw->media_type == e1000_media_type_internal_serdes) { 1472 int i = 0; 1473 1474 hw->serdes_has_link = false; 1475 1476 /* On some blade server designs, link establishment 1477 * could take as long as 2-3 minutes 1478 */ 1479 do { 1480 e1000_check_for_link(hw); 1481 if (hw->serdes_has_link) 1482 return *data; 1483 msleep(20); 1484 } while (i++ < 3750); 1485 1486 *data = 1; 1487 } else { 1488 e1000_check_for_link(hw); 1489 if (hw->autoneg) /* if auto_neg is set wait for it */ 1490 msleep(4000); 1491 1492 if (!(er32(STATUS) & E1000_STATUS_LU)) 1493 *data = 1; 1494 } 1495 return *data; 1496} 1497 1498static int e1000_get_sset_count(struct net_device *netdev, int sset) 1499{ 1500 switch (sset) { 1501 case ETH_SS_TEST: 1502 return E1000_TEST_LEN; 1503 case ETH_SS_STATS: 1504 return E1000_STATS_LEN; 1505 default: 1506 return -EOPNOTSUPP; 1507 } 1508} 1509 1510static void e1000_diag_test(struct net_device *netdev, 1511 struct ethtool_test *eth_test, u64 *data) 1512{ 1513 struct e1000_adapter *adapter = netdev_priv(netdev); 1514 struct e1000_hw *hw = &adapter->hw; 1515 bool if_running = netif_running(netdev); 1516 1517 set_bit(__E1000_TESTING, &adapter->flags); 1518 if (eth_test->flags == ETH_TEST_FL_OFFLINE) { 1519 /* Offline tests */ 1520 1521 /* save speed, duplex, autoneg settings */ 1522 u16 autoneg_advertised = hw->autoneg_advertised; 1523 u8 forced_speed_duplex = hw->forced_speed_duplex; 1524 u8 autoneg = hw->autoneg; 1525 1526 e_info(hw, "offline testing starting\n"); 1527 1528 /* Link test performed before hardware reset so autoneg doesn't 1529 * interfere with test result 1530 */ 1531 if (e1000_link_test(adapter, &data[4])) 1532 eth_test->flags |= ETH_TEST_FL_FAILED; 1533 1534 if (if_running) 1535 /* indicate we're in test mode */ 1536 e1000_close(netdev); 1537 else 1538 e1000_reset(adapter); 1539 1540 if (e1000_reg_test(adapter, &data[0])) 1541 eth_test->flags |= ETH_TEST_FL_FAILED; 1542 1543 e1000_reset(adapter); 1544 if (e1000_eeprom_test(adapter, &data[1])) 1545 eth_test->flags |= ETH_TEST_FL_FAILED; 1546 1547 e1000_reset(adapter); 1548 if (e1000_intr_test(adapter, &data[2])) 1549 eth_test->flags |= ETH_TEST_FL_FAILED; 1550 1551 e1000_reset(adapter); 1552 /* make sure the phy is powered up */ 1553 e1000_power_up_phy(adapter); 1554 if (e1000_loopback_test(adapter, &data[3])) 1555 eth_test->flags |= ETH_TEST_FL_FAILED; 1556 1557 /* restore speed, duplex, autoneg settings */ 1558 hw->autoneg_advertised = autoneg_advertised; 1559 hw->forced_speed_duplex = forced_speed_duplex; 1560 hw->autoneg = autoneg; 1561 1562 e1000_reset(adapter); 1563 clear_bit(__E1000_TESTING, &adapter->flags); 1564 if (if_running) 1565 e1000_open(netdev); 1566 } else { 1567 e_info(hw, "online testing starting\n"); 1568 /* Online tests */ 1569 if (e1000_link_test(adapter, &data[4])) 1570 eth_test->flags |= ETH_TEST_FL_FAILED; 1571 1572 /* Online tests aren't run; pass by default */ 1573 data[0] = 0; 1574 data[1] = 0; 1575 data[2] = 0; 1576 data[3] = 0; 1577 1578 clear_bit(__E1000_TESTING, &adapter->flags); 1579 } 1580 msleep_interruptible(4 * 1000); 1581} 1582 1583static int e1000_wol_exclusion(struct e1000_adapter *adapter, 1584 struct ethtool_wolinfo *wol) 1585{ 1586 struct e1000_hw *hw = &adapter->hw; 1587 int retval = 1; /* fail by default */ 1588 1589 switch (hw->device_id) { 1590 case E1000_DEV_ID_82542: 1591 case E1000_DEV_ID_82543GC_FIBER: 1592 case E1000_DEV_ID_82543GC_COPPER: 1593 case E1000_DEV_ID_82544EI_FIBER: 1594 case E1000_DEV_ID_82546EB_QUAD_COPPER: 1595 case E1000_DEV_ID_82545EM_FIBER: 1596 case E1000_DEV_ID_82545EM_COPPER: 1597 case E1000_DEV_ID_82546GB_QUAD_COPPER: 1598 case E1000_DEV_ID_82546GB_PCIE: 1599 /* these don't support WoL at all */ 1600 wol->supported = 0; 1601 break; 1602 case E1000_DEV_ID_82546EB_FIBER: 1603 case E1000_DEV_ID_82546GB_FIBER: 1604 /* Wake events not supported on port B */ 1605 if (er32(STATUS) & E1000_STATUS_FUNC_1) { 1606 wol->supported = 0; 1607 break; 1608 } 1609 /* return success for non excluded adapter ports */ 1610 retval = 0; 1611 break; 1612 case E1000_DEV_ID_82546GB_QUAD_COPPER_KSP3: 1613 /* quad port adapters only support WoL on port A */ 1614 if (!adapter->quad_port_a) { 1615 wol->supported = 0; 1616 break; 1617 } 1618 /* return success for non excluded adapter ports */ 1619 retval = 0; 1620 break; 1621 default: 1622 /* dual port cards only support WoL on port A from now on 1623 * unless it was enabled in the eeprom for port B 1624 * so exclude FUNC_1 ports from having WoL enabled 1625 */ 1626 if (er32(STATUS) & E1000_STATUS_FUNC_1 && 1627 !adapter->eeprom_wol) { 1628 wol->supported = 0; 1629 break; 1630 } 1631 1632 retval = 0; 1633 } 1634 1635 return retval; 1636} 1637 1638static void e1000_get_wol(struct net_device *netdev, 1639 struct ethtool_wolinfo *wol) 1640{ 1641 struct e1000_adapter *adapter = netdev_priv(netdev); 1642 struct e1000_hw *hw = &adapter->hw; 1643 1644 wol->supported = WAKE_UCAST | WAKE_MCAST | WAKE_BCAST | WAKE_MAGIC; 1645 wol->wolopts = 0; 1646 1647 /* this function will set ->supported = 0 and return 1 if wol is not 1648 * supported by this hardware 1649 */ 1650 if (e1000_wol_exclusion(adapter, wol) || 1651 !device_can_wakeup(&adapter->pdev->dev)) 1652 return; 1653 1654 /* apply any specific unsupported masks here */ 1655 switch (hw->device_id) { 1656 case E1000_DEV_ID_82546GB_QUAD_COPPER_KSP3: 1657 /* KSP3 does not support UCAST wake-ups */ 1658 wol->supported &= ~WAKE_UCAST; 1659 1660 if (adapter->wol & E1000_WUFC_EX) 1661 e_err(drv, "Interface does not support directed " 1662 "(unicast) frame wake-up packets\n"); 1663 break; 1664 default: 1665 break; 1666 } 1667 1668 if (adapter->wol & E1000_WUFC_EX) 1669 wol->wolopts |= WAKE_UCAST; 1670 if (adapter->wol & E1000_WUFC_MC) 1671 wol->wolopts |= WAKE_MCAST; 1672 if (adapter->wol & E1000_WUFC_BC) 1673 wol->wolopts |= WAKE_BCAST; 1674 if (adapter->wol & E1000_WUFC_MAG) 1675 wol->wolopts |= WAKE_MAGIC; 1676} 1677 1678static int e1000_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol) 1679{ 1680 struct e1000_adapter *adapter = netdev_priv(netdev); 1681 struct e1000_hw *hw = &adapter->hw; 1682 1683 if (wol->wolopts & (WAKE_PHY | WAKE_ARP | WAKE_MAGICSECURE)) 1684 return -EOPNOTSUPP; 1685 1686 if (e1000_wol_exclusion(adapter, wol) || 1687 !device_can_wakeup(&adapter->pdev->dev)) 1688 return wol->wolopts ? -EOPNOTSUPP : 0; 1689 1690 switch (hw->device_id) { 1691 case E1000_DEV_ID_82546GB_QUAD_COPPER_KSP3: 1692 if (wol->wolopts & WAKE_UCAST) { 1693 e_err(drv, "Interface does not support directed " 1694 "(unicast) frame wake-up packets\n"); 1695 return -EOPNOTSUPP; 1696 } 1697 break; 1698 default: 1699 break; 1700 } 1701 1702 /* these settings will always override what we currently have */ 1703 adapter->wol = 0; 1704 1705 if (wol->wolopts & WAKE_UCAST) 1706 adapter->wol |= E1000_WUFC_EX; 1707 if (wol->wolopts & WAKE_MCAST) 1708 adapter->wol |= E1000_WUFC_MC; 1709 if (wol->wolopts & WAKE_BCAST) 1710 adapter->wol |= E1000_WUFC_BC; 1711 if (wol->wolopts & WAKE_MAGIC) 1712 adapter->wol |= E1000_WUFC_MAG; 1713 1714 device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol); 1715 1716 return 0; 1717} 1718 1719static int e1000_set_phys_id(struct net_device *netdev, 1720 enum ethtool_phys_id_state state) 1721{ 1722 struct e1000_adapter *adapter = netdev_priv(netdev); 1723 struct e1000_hw *hw = &adapter->hw; 1724 1725 switch (state) { 1726 case ETHTOOL_ID_ACTIVE: 1727 e1000_setup_led(hw); 1728 return 2; 1729 1730 case ETHTOOL_ID_ON: 1731 e1000_led_on(hw); 1732 break; 1733 1734 case ETHTOOL_ID_OFF: 1735 e1000_led_off(hw); 1736 break; 1737 1738 case ETHTOOL_ID_INACTIVE: 1739 e1000_cleanup_led(hw); 1740 } 1741 1742 return 0; 1743} 1744 1745static int e1000_get_coalesce(struct net_device *netdev, 1746 struct ethtool_coalesce *ec, 1747 struct kernel_ethtool_coalesce *kernel_coal, 1748 struct netlink_ext_ack *extack) 1749{ 1750 struct e1000_adapter *adapter = netdev_priv(netdev); 1751 1752 if (adapter->hw.mac_type < e1000_82545) 1753 return -EOPNOTSUPP; 1754 1755 if (adapter->itr_setting <= 4) 1756 ec->rx_coalesce_usecs = adapter->itr_setting; 1757 else 1758 ec->rx_coalesce_usecs = 1000000 / adapter->itr_setting; 1759 1760 return 0; 1761} 1762 1763static int e1000_set_coalesce(struct net_device *netdev, 1764 struct ethtool_coalesce *ec, 1765 struct kernel_ethtool_coalesce *kernel_coal, 1766 struct netlink_ext_ack *extack) 1767{ 1768 struct e1000_adapter *adapter = netdev_priv(netdev); 1769 struct e1000_hw *hw = &adapter->hw; 1770 1771 if (hw->mac_type < e1000_82545) 1772 return -EOPNOTSUPP; 1773 1774 if ((ec->rx_coalesce_usecs > E1000_MAX_ITR_USECS) || 1775 ((ec->rx_coalesce_usecs > 4) && 1776 (ec->rx_coalesce_usecs < E1000_MIN_ITR_USECS)) || 1777 (ec->rx_coalesce_usecs == 2)) 1778 return -EINVAL; 1779 1780 if (ec->rx_coalesce_usecs == 4) { 1781 adapter->itr = adapter->itr_setting = 4; 1782 } else if (ec->rx_coalesce_usecs <= 3) { 1783 adapter->itr = 20000; 1784 adapter->itr_setting = ec->rx_coalesce_usecs; 1785 } else { 1786 adapter->itr = (1000000 / ec->rx_coalesce_usecs); 1787 adapter->itr_setting = adapter->itr & ~3; 1788 } 1789 1790 if (adapter->itr_setting != 0) 1791 ew32(ITR, 1000000000 / (adapter->itr * 256)); 1792 else 1793 ew32(ITR, 0); 1794 1795 return 0; 1796} 1797 1798static int e1000_nway_reset(struct net_device *netdev) 1799{ 1800 struct e1000_adapter *adapter = netdev_priv(netdev); 1801 1802 if (netif_running(netdev)) 1803 e1000_reinit_locked(adapter); 1804 return 0; 1805} 1806 1807static void e1000_get_ethtool_stats(struct net_device *netdev, 1808 struct ethtool_stats *stats, u64 *data) 1809{ 1810 struct e1000_adapter *adapter = netdev_priv(netdev); 1811 int i; 1812 const struct e1000_stats *stat = e1000_gstrings_stats; 1813 1814 e1000_update_stats(adapter); 1815 for (i = 0; i < E1000_GLOBAL_STATS_LEN; i++, stat++) { 1816 char *p; 1817 1818 switch (stat->type) { 1819 case NETDEV_STATS: 1820 p = (char *)netdev + stat->stat_offset; 1821 break; 1822 case E1000_STATS: 1823 p = (char *)adapter + stat->stat_offset; 1824 break; 1825 default: 1826 netdev_WARN_ONCE(netdev, "Invalid E1000 stat type: %u index %d\n", 1827 stat->type, i); 1828 continue; 1829 } 1830 1831 if (stat->sizeof_stat == sizeof(u64)) 1832 data[i] = *(u64 *)p; 1833 else 1834 data[i] = *(u32 *)p; 1835 } 1836/* BUG_ON(i != E1000_STATS_LEN); */ 1837} 1838 1839static void e1000_get_strings(struct net_device *netdev, u32 stringset, 1840 u8 *data) 1841{ 1842 u8 *p = data; 1843 int i; 1844 1845 switch (stringset) { 1846 case ETH_SS_TEST: 1847 memcpy(data, e1000_gstrings_test, sizeof(e1000_gstrings_test)); 1848 break; 1849 case ETH_SS_STATS: 1850 for (i = 0; i < E1000_GLOBAL_STATS_LEN; i++) { 1851 memcpy(p, e1000_gstrings_stats[i].stat_string, 1852 ETH_GSTRING_LEN); 1853 p += ETH_GSTRING_LEN; 1854 } 1855 /* BUG_ON(p - data != E1000_STATS_LEN * ETH_GSTRING_LEN); */ 1856 break; 1857 } 1858} 1859 1860static const struct ethtool_ops e1000_ethtool_ops = { 1861 .supported_coalesce_params = ETHTOOL_COALESCE_RX_USECS, 1862 .get_drvinfo = e1000_get_drvinfo, 1863 .get_regs_len = e1000_get_regs_len, 1864 .get_regs = e1000_get_regs, 1865 .get_wol = e1000_get_wol, 1866 .set_wol = e1000_set_wol, 1867 .get_msglevel = e1000_get_msglevel, 1868 .set_msglevel = e1000_set_msglevel, 1869 .nway_reset = e1000_nway_reset, 1870 .get_link = e1000_get_link, 1871 .get_eeprom_len = e1000_get_eeprom_len, 1872 .get_eeprom = e1000_get_eeprom, 1873 .set_eeprom = e1000_set_eeprom, 1874 .get_ringparam = e1000_get_ringparam, 1875 .set_ringparam = e1000_set_ringparam, 1876 .get_pauseparam = e1000_get_pauseparam, 1877 .set_pauseparam = e1000_set_pauseparam, 1878 .self_test = e1000_diag_test, 1879 .get_strings = e1000_get_strings, 1880 .set_phys_id = e1000_set_phys_id, 1881 .get_ethtool_stats = e1000_get_ethtool_stats, 1882 .get_sset_count = e1000_get_sset_count, 1883 .get_coalesce = e1000_get_coalesce, 1884 .set_coalesce = e1000_set_coalesce, 1885 .get_ts_info = ethtool_op_get_ts_info, 1886 .get_link_ksettings = e1000_get_link_ksettings, 1887 .set_link_ksettings = e1000_set_link_ksettings, 1888}; 1889 1890void e1000_set_ethtool_ops(struct net_device *netdev) 1891{ 1892 netdev->ethtool_ops = &e1000_ethtool_ops; 1893} 1894