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 10 enum {NETDEV_STATS, E1000_STATS}; 11 12 struct 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 26 static 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) 78 static 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 86 static 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 } 163 164 static 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 } 230 231 static 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 } 246 247 static 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 } 265 266 static 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 } 303 304 static u32 e1000_get_msglevel(struct net_device *netdev) 305 { 306 struct e1000_adapter *adapter = netdev_priv(netdev); 307 308 return adapter->msg_enable; 309 } 310 311 static 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 } 317 318 static int e1000_get_regs_len(struct net_device *netdev) 319 { 320 #define E1000_REGS_LEN 32 321 return E1000_REGS_LEN * sizeof(u32); 322 } 323 324 static 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 } 411 412 static 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 } 419 420 static 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 } 466 467 static 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 if (ret_val) 500 goto out; 501 502 /* Device's eeprom is always little-endian, word addressable */ 503 le16_to_cpus(&eeprom_buff[0]); 504 505 ptr++; 506 } 507 if ((eeprom->offset + eeprom->len) & 1) { 508 /* need read/modify/write of last changed EEPROM word 509 * only the first byte of the word is being modified 510 */ 511 ret_val = e1000_read_eeprom(hw, last_word, 1, 512 &eeprom_buff[last_word - first_word]); 513 if (ret_val) 514 goto out; 515 516 /* Device's eeprom is always little-endian, word addressable */ 517 le16_to_cpus(&eeprom_buff[last_word - first_word]); 518 } 519 520 memcpy(ptr, bytes, eeprom->len); 521 522 for (i = 0; i < last_word - first_word + 1; i++) 523 cpu_to_le16s(&eeprom_buff[i]); 524 525 ret_val = e1000_write_eeprom(hw, first_word, 526 last_word - first_word + 1, eeprom_buff); 527 528 /* Update the checksum over the first part of the EEPROM if needed */ 529 if ((ret_val == 0) && (first_word <= EEPROM_CHECKSUM_REG)) 530 e1000_update_eeprom_checksum(hw); 531 532 out: 533 kfree(eeprom_buff); 534 return ret_val; 535 } 536 537 static void e1000_get_drvinfo(struct net_device *netdev, 538 struct ethtool_drvinfo *drvinfo) 539 { 540 struct e1000_adapter *adapter = netdev_priv(netdev); 541 542 strscpy(drvinfo->driver, e1000_driver_name, 543 sizeof(drvinfo->driver)); 544 545 strscpy(drvinfo->bus_info, pci_name(adapter->pdev), 546 sizeof(drvinfo->bus_info)); 547 } 548 549 static void e1000_get_ringparam(struct net_device *netdev, 550 struct ethtool_ringparam *ring, 551 struct kernel_ethtool_ringparam *kernel_ring, 552 struct netlink_ext_ack *extack) 553 { 554 struct e1000_adapter *adapter = netdev_priv(netdev); 555 struct e1000_hw *hw = &adapter->hw; 556 e1000_mac_type mac_type = hw->mac_type; 557 struct e1000_tx_ring *txdr = adapter->tx_ring; 558 struct e1000_rx_ring *rxdr = adapter->rx_ring; 559 560 ring->rx_max_pending = (mac_type < e1000_82544) ? E1000_MAX_RXD : 561 E1000_MAX_82544_RXD; 562 ring->tx_max_pending = (mac_type < e1000_82544) ? E1000_MAX_TXD : 563 E1000_MAX_82544_TXD; 564 ring->rx_pending = rxdr->count; 565 ring->tx_pending = txdr->count; 566 } 567 568 static int e1000_set_ringparam(struct net_device *netdev, 569 struct ethtool_ringparam *ring, 570 struct kernel_ethtool_ringparam *kernel_ring, 571 struct netlink_ext_ack *extack) 572 { 573 struct e1000_adapter *adapter = netdev_priv(netdev); 574 struct e1000_hw *hw = &adapter->hw; 575 e1000_mac_type mac_type = hw->mac_type; 576 struct e1000_tx_ring *txdr, *tx_old; 577 struct e1000_rx_ring *rxdr, *rx_old; 578 int i, err; 579 580 if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending)) 581 return -EINVAL; 582 583 while (test_and_set_bit(__E1000_RESETTING, &adapter->flags)) 584 msleep(1); 585 586 if (netif_running(adapter->netdev)) 587 e1000_down(adapter); 588 589 tx_old = adapter->tx_ring; 590 rx_old = adapter->rx_ring; 591 592 err = -ENOMEM; 593 txdr = kzalloc_objs(struct e1000_tx_ring, adapter->num_tx_queues); 594 if (!txdr) 595 goto err_alloc_tx; 596 597 rxdr = kzalloc_objs(struct e1000_rx_ring, adapter->num_rx_queues); 598 if (!rxdr) 599 goto err_alloc_rx; 600 601 adapter->tx_ring = txdr; 602 adapter->rx_ring = rxdr; 603 604 rxdr->count = max(ring->rx_pending, (u32)E1000_MIN_RXD); 605 rxdr->count = min(rxdr->count, (u32)(mac_type < e1000_82544 ? 606 E1000_MAX_RXD : E1000_MAX_82544_RXD)); 607 rxdr->count = ALIGN(rxdr->count, REQ_RX_DESCRIPTOR_MULTIPLE); 608 txdr->count = max(ring->tx_pending, (u32)E1000_MIN_TXD); 609 txdr->count = min(txdr->count, (u32)(mac_type < e1000_82544 ? 610 E1000_MAX_TXD : E1000_MAX_82544_TXD)); 611 txdr->count = ALIGN(txdr->count, REQ_TX_DESCRIPTOR_MULTIPLE); 612 613 for (i = 0; i < adapter->num_tx_queues; i++) 614 txdr[i].count = txdr->count; 615 for (i = 0; i < adapter->num_rx_queues; i++) 616 rxdr[i].count = rxdr->count; 617 618 err = 0; 619 if (netif_running(adapter->netdev)) { 620 /* Try to get new resources before deleting old */ 621 err = e1000_setup_all_rx_resources(adapter); 622 if (err) 623 goto err_setup_rx; 624 err = e1000_setup_all_tx_resources(adapter); 625 if (err) 626 goto err_setup_tx; 627 628 /* save the new, restore the old in order to free it, 629 * then restore the new back again 630 */ 631 632 adapter->rx_ring = rx_old; 633 adapter->tx_ring = tx_old; 634 e1000_free_all_rx_resources(adapter); 635 e1000_free_all_tx_resources(adapter); 636 adapter->rx_ring = rxdr; 637 adapter->tx_ring = txdr; 638 err = e1000_up(adapter); 639 } 640 kfree(tx_old); 641 kfree(rx_old); 642 643 clear_bit(__E1000_RESETTING, &adapter->flags); 644 return err; 645 646 err_setup_tx: 647 e1000_free_all_rx_resources(adapter); 648 err_setup_rx: 649 adapter->rx_ring = rx_old; 650 adapter->tx_ring = tx_old; 651 kfree(rxdr); 652 err_alloc_rx: 653 kfree(txdr); 654 err_alloc_tx: 655 if (netif_running(adapter->netdev)) 656 e1000_up(adapter); 657 clear_bit(__E1000_RESETTING, &adapter->flags); 658 return err; 659 } 660 661 static bool reg_pattern_test(struct e1000_adapter *adapter, u64 *data, int reg, 662 u32 mask, u32 write) 663 { 664 struct e1000_hw *hw = &adapter->hw; 665 static const u32 test[] = { 666 0x5A5A5A5A, 0xA5A5A5A5, 0x00000000, 0xFFFFFFFF 667 }; 668 u8 __iomem *address = hw->hw_addr + reg; 669 u32 read; 670 int i; 671 672 for (i = 0; i < ARRAY_SIZE(test); i++) { 673 writel(write & test[i], address); 674 read = readl(address); 675 if (read != (write & test[i] & mask)) { 676 e_err(drv, "pattern test reg %04X failed: " 677 "got 0x%08X expected 0x%08X\n", 678 reg, read, (write & test[i] & mask)); 679 *data = reg; 680 return true; 681 } 682 } 683 return false; 684 } 685 686 static bool reg_set_and_check(struct e1000_adapter *adapter, u64 *data, int reg, 687 u32 mask, u32 write) 688 { 689 struct e1000_hw *hw = &adapter->hw; 690 u8 __iomem *address = hw->hw_addr + reg; 691 u32 read; 692 693 writel(write & mask, address); 694 read = readl(address); 695 if ((read & mask) != (write & mask)) { 696 e_err(drv, "set/check reg %04X test failed: " 697 "got 0x%08X expected 0x%08X\n", 698 reg, (read & mask), (write & mask)); 699 *data = reg; 700 return true; 701 } 702 return false; 703 } 704 705 #define REG_PATTERN_TEST(reg, mask, write) \ 706 do { \ 707 if (reg_pattern_test(adapter, data, \ 708 (hw->mac_type >= e1000_82543) \ 709 ? E1000_##reg : E1000_82542_##reg, \ 710 mask, write)) \ 711 return 1; \ 712 } while (0) 713 714 #define REG_SET_AND_CHECK(reg, mask, write) \ 715 do { \ 716 if (reg_set_and_check(adapter, data, \ 717 (hw->mac_type >= e1000_82543) \ 718 ? E1000_##reg : E1000_82542_##reg, \ 719 mask, write)) \ 720 return 1; \ 721 } while (0) 722 723 static int e1000_reg_test(struct e1000_adapter *adapter, u64 *data) 724 { 725 u32 value, before, after; 726 u32 i, toggle; 727 struct e1000_hw *hw = &adapter->hw; 728 729 /* The status register is Read Only, so a write should fail. 730 * Some bits that get toggled are ignored. 731 */ 732 733 /* there are several bits on newer hardware that are r/w */ 734 toggle = 0xFFFFF833; 735 736 before = er32(STATUS); 737 value = (er32(STATUS) & toggle); 738 ew32(STATUS, toggle); 739 after = er32(STATUS) & toggle; 740 if (value != after) { 741 e_err(drv, "failed STATUS register test got: " 742 "0x%08X expected: 0x%08X\n", after, value); 743 *data = 1; 744 return 1; 745 } 746 /* restore previous status */ 747 ew32(STATUS, before); 748 749 REG_PATTERN_TEST(FCAL, 0xFFFFFFFF, 0xFFFFFFFF); 750 REG_PATTERN_TEST(FCAH, 0x0000FFFF, 0xFFFFFFFF); 751 REG_PATTERN_TEST(FCT, 0x0000FFFF, 0xFFFFFFFF); 752 REG_PATTERN_TEST(VET, 0x0000FFFF, 0xFFFFFFFF); 753 754 REG_PATTERN_TEST(RDTR, 0x0000FFFF, 0xFFFFFFFF); 755 REG_PATTERN_TEST(RDBAH, 0xFFFFFFFF, 0xFFFFFFFF); 756 REG_PATTERN_TEST(RDLEN, 0x000FFF80, 0x000FFFFF); 757 REG_PATTERN_TEST(RDH, 0x0000FFFF, 0x0000FFFF); 758 REG_PATTERN_TEST(RDT, 0x0000FFFF, 0x0000FFFF); 759 REG_PATTERN_TEST(FCRTH, 0x0000FFF8, 0x0000FFF8); 760 REG_PATTERN_TEST(FCTTV, 0x0000FFFF, 0x0000FFFF); 761 REG_PATTERN_TEST(TIPG, 0x3FFFFFFF, 0x3FFFFFFF); 762 REG_PATTERN_TEST(TDBAH, 0xFFFFFFFF, 0xFFFFFFFF); 763 REG_PATTERN_TEST(TDLEN, 0x000FFF80, 0x000FFFFF); 764 765 REG_SET_AND_CHECK(RCTL, 0xFFFFFFFF, 0x00000000); 766 767 before = 0x06DFB3FE; 768 REG_SET_AND_CHECK(RCTL, before, 0x003FFFFB); 769 REG_SET_AND_CHECK(TCTL, 0xFFFFFFFF, 0x00000000); 770 771 if (hw->mac_type >= e1000_82543) { 772 REG_SET_AND_CHECK(RCTL, before, 0xFFFFFFFF); 773 REG_PATTERN_TEST(RDBAL, 0xFFFFFFF0, 0xFFFFFFFF); 774 REG_PATTERN_TEST(TXCW, 0xC000FFFF, 0x0000FFFF); 775 REG_PATTERN_TEST(TDBAL, 0xFFFFFFF0, 0xFFFFFFFF); 776 REG_PATTERN_TEST(TIDV, 0x0000FFFF, 0x0000FFFF); 777 value = E1000_RAR_ENTRIES; 778 for (i = 0; i < value; i++) { 779 REG_PATTERN_TEST(RA + (((i << 1) + 1) << 2), 780 0x8003FFFF, 0xFFFFFFFF); 781 } 782 } else { 783 REG_SET_AND_CHECK(RCTL, 0xFFFFFFFF, 0x01FFFFFF); 784 REG_PATTERN_TEST(RDBAL, 0xFFFFF000, 0xFFFFFFFF); 785 REG_PATTERN_TEST(TXCW, 0x0000FFFF, 0x0000FFFF); 786 REG_PATTERN_TEST(TDBAL, 0xFFFFF000, 0xFFFFFFFF); 787 } 788 789 value = E1000_MC_TBL_SIZE; 790 for (i = 0; i < value; i++) 791 REG_PATTERN_TEST(MTA + (i << 2), 0xFFFFFFFF, 0xFFFFFFFF); 792 793 *data = 0; 794 return 0; 795 } 796 797 static int e1000_eeprom_test(struct e1000_adapter *adapter, u64 *data) 798 { 799 struct e1000_hw *hw = &adapter->hw; 800 u16 temp; 801 u16 checksum = 0; 802 u16 i; 803 804 *data = 0; 805 /* Read and add up the contents of the EEPROM */ 806 for (i = 0; i < (EEPROM_CHECKSUM_REG + 1); i++) { 807 if ((e1000_read_eeprom(hw, i, 1, &temp)) < 0) { 808 *data = 1; 809 break; 810 } 811 checksum += temp; 812 } 813 814 /* If Checksum is not Correct return error else test passed */ 815 if (checksum != EEPROM_SUM && !(*data)) 816 *data = 2; 817 818 return *data; 819 } 820 821 static irqreturn_t e1000_test_intr(int irq, void *data) 822 { 823 struct net_device *netdev = (struct net_device *)data; 824 struct e1000_adapter *adapter = netdev_priv(netdev); 825 struct e1000_hw *hw = &adapter->hw; 826 827 adapter->test_icr |= er32(ICR); 828 829 return IRQ_HANDLED; 830 } 831 832 static int e1000_intr_test(struct e1000_adapter *adapter, u64 *data) 833 { 834 struct net_device *netdev = adapter->netdev; 835 u32 mask, i = 0; 836 bool shared_int = true; 837 u32 irq = adapter->pdev->irq; 838 struct e1000_hw *hw = &adapter->hw; 839 840 *data = 0; 841 842 /* NOTE: we don't test MSI interrupts here, yet 843 * Hook up test interrupt handler just for this test 844 */ 845 if (!request_irq(irq, e1000_test_intr, IRQF_PROBE_SHARED, netdev->name, 846 netdev)) 847 shared_int = false; 848 else if (request_irq(irq, e1000_test_intr, IRQF_SHARED, 849 netdev->name, netdev)) { 850 *data = 1; 851 return -1; 852 } 853 e_info(hw, "testing %s interrupt\n", (shared_int ? 854 "shared" : "unshared")); 855 856 /* Disable all the interrupts */ 857 ew32(IMC, 0xFFFFFFFF); 858 E1000_WRITE_FLUSH(); 859 msleep(10); 860 861 /* Test each interrupt */ 862 for (; i < 10; i++) { 863 /* Interrupt to test */ 864 mask = 1 << i; 865 866 if (!shared_int) { 867 /* Disable the interrupt to be reported in 868 * the cause register and then force the same 869 * interrupt and see if one gets posted. If 870 * an interrupt was posted to the bus, the 871 * test failed. 872 */ 873 adapter->test_icr = 0; 874 ew32(IMC, mask); 875 ew32(ICS, mask); 876 E1000_WRITE_FLUSH(); 877 msleep(10); 878 879 if (adapter->test_icr & mask) { 880 *data = 3; 881 break; 882 } 883 } 884 885 /* Enable the interrupt to be reported in 886 * the cause register and then force the same 887 * interrupt and see if one gets posted. If 888 * an interrupt was not posted to the bus, the 889 * test failed. 890 */ 891 adapter->test_icr = 0; 892 ew32(IMS, mask); 893 ew32(ICS, mask); 894 E1000_WRITE_FLUSH(); 895 msleep(10); 896 897 if (!(adapter->test_icr & mask)) { 898 *data = 4; 899 break; 900 } 901 902 if (!shared_int) { 903 /* Disable the other interrupts to be reported in 904 * the cause register and then force the other 905 * interrupts and see if any get posted. If 906 * an interrupt was posted to the bus, the 907 * test failed. 908 */ 909 adapter->test_icr = 0; 910 ew32(IMC, ~mask & 0x00007FFF); 911 ew32(ICS, ~mask & 0x00007FFF); 912 E1000_WRITE_FLUSH(); 913 msleep(10); 914 915 if (adapter->test_icr) { 916 *data = 5; 917 break; 918 } 919 } 920 } 921 922 /* Disable all the interrupts */ 923 ew32(IMC, 0xFFFFFFFF); 924 E1000_WRITE_FLUSH(); 925 msleep(10); 926 927 /* Unhook test interrupt handler */ 928 free_irq(irq, netdev); 929 930 return *data; 931 } 932 933 static void e1000_free_desc_rings(struct e1000_adapter *adapter) 934 { 935 struct e1000_tx_ring *txdr = &adapter->test_tx_ring; 936 struct e1000_rx_ring *rxdr = &adapter->test_rx_ring; 937 struct pci_dev *pdev = adapter->pdev; 938 int i; 939 940 if (txdr->desc && txdr->buffer_info) { 941 for (i = 0; i < txdr->count; i++) { 942 if (txdr->buffer_info[i].dma) 943 dma_unmap_single(&pdev->dev, 944 txdr->buffer_info[i].dma, 945 txdr->buffer_info[i].length, 946 DMA_TO_DEVICE); 947 dev_kfree_skb(txdr->buffer_info[i].skb); 948 } 949 } 950 951 if (rxdr->desc && rxdr->buffer_info) { 952 for (i = 0; i < rxdr->count; i++) { 953 if (rxdr->buffer_info[i].dma) 954 dma_unmap_single(&pdev->dev, 955 rxdr->buffer_info[i].dma, 956 E1000_RXBUFFER_2048, 957 DMA_FROM_DEVICE); 958 kfree(rxdr->buffer_info[i].rxbuf.data); 959 } 960 } 961 962 if (txdr->desc) { 963 dma_free_coherent(&pdev->dev, txdr->size, txdr->desc, 964 txdr->dma); 965 txdr->desc = NULL; 966 } 967 if (rxdr->desc) { 968 dma_free_coherent(&pdev->dev, rxdr->size, rxdr->desc, 969 rxdr->dma); 970 rxdr->desc = NULL; 971 } 972 973 kfree(txdr->buffer_info); 974 txdr->buffer_info = NULL; 975 kfree(rxdr->buffer_info); 976 rxdr->buffer_info = NULL; 977 } 978 979 static int e1000_setup_desc_rings(struct e1000_adapter *adapter) 980 { 981 struct e1000_hw *hw = &adapter->hw; 982 struct e1000_tx_ring *txdr = &adapter->test_tx_ring; 983 struct e1000_rx_ring *rxdr = &adapter->test_rx_ring; 984 struct pci_dev *pdev = adapter->pdev; 985 u32 rctl; 986 int i, ret_val; 987 988 /* Setup Tx descriptor ring and Tx buffers */ 989 990 if (!txdr->count) 991 txdr->count = E1000_DEFAULT_TXD; 992 993 txdr->buffer_info = kzalloc_objs(struct e1000_tx_buffer, txdr->count); 994 if (!txdr->buffer_info) { 995 ret_val = 1; 996 goto err_nomem; 997 } 998 999 txdr->size = txdr->count * sizeof(struct e1000_tx_desc); 1000 txdr->size = ALIGN(txdr->size, 4096); 1001 txdr->desc = dma_alloc_coherent(&pdev->dev, txdr->size, &txdr->dma, 1002 GFP_KERNEL); 1003 if (!txdr->desc) { 1004 ret_val = 2; 1005 goto err_nomem; 1006 } 1007 txdr->next_to_use = txdr->next_to_clean = 0; 1008 1009 ew32(TDBAL, ((u64)txdr->dma & 0x00000000FFFFFFFF)); 1010 ew32(TDBAH, ((u64)txdr->dma >> 32)); 1011 ew32(TDLEN, txdr->count * sizeof(struct e1000_tx_desc)); 1012 ew32(TDH, 0); 1013 ew32(TDT, 0); 1014 ew32(TCTL, E1000_TCTL_PSP | E1000_TCTL_EN | 1015 E1000_COLLISION_THRESHOLD << E1000_CT_SHIFT | 1016 E1000_FDX_COLLISION_DISTANCE << E1000_COLD_SHIFT); 1017 1018 for (i = 0; i < txdr->count; i++) { 1019 struct e1000_tx_desc *tx_desc = E1000_TX_DESC(*txdr, i); 1020 struct sk_buff *skb; 1021 unsigned int size = 1024; 1022 1023 skb = alloc_skb(size, GFP_KERNEL); 1024 if (!skb) { 1025 ret_val = 3; 1026 goto err_nomem; 1027 } 1028 skb_put(skb, size); 1029 txdr->buffer_info[i].skb = skb; 1030 txdr->buffer_info[i].length = skb->len; 1031 txdr->buffer_info[i].dma = 1032 dma_map_single(&pdev->dev, skb->data, skb->len, 1033 DMA_TO_DEVICE); 1034 if (dma_mapping_error(&pdev->dev, txdr->buffer_info[i].dma)) { 1035 ret_val = 4; 1036 goto err_nomem; 1037 } 1038 tx_desc->buffer_addr = cpu_to_le64(txdr->buffer_info[i].dma); 1039 tx_desc->lower.data = cpu_to_le32(skb->len); 1040 tx_desc->lower.data |= cpu_to_le32(E1000_TXD_CMD_EOP | 1041 E1000_TXD_CMD_IFCS | 1042 E1000_TXD_CMD_RPS); 1043 tx_desc->upper.data = 0; 1044 } 1045 1046 /* Setup Rx descriptor ring and Rx buffers */ 1047 1048 if (!rxdr->count) 1049 rxdr->count = E1000_DEFAULT_RXD; 1050 1051 rxdr->buffer_info = kzalloc_objs(struct e1000_rx_buffer, rxdr->count); 1052 if (!rxdr->buffer_info) { 1053 ret_val = 5; 1054 goto err_nomem; 1055 } 1056 1057 rxdr->size = rxdr->count * sizeof(struct e1000_rx_desc); 1058 rxdr->desc = dma_alloc_coherent(&pdev->dev, rxdr->size, &rxdr->dma, 1059 GFP_KERNEL); 1060 if (!rxdr->desc) { 1061 ret_val = 6; 1062 goto err_nomem; 1063 } 1064 rxdr->next_to_use = rxdr->next_to_clean = 0; 1065 1066 rctl = er32(RCTL); 1067 ew32(RCTL, rctl & ~E1000_RCTL_EN); 1068 ew32(RDBAL, ((u64)rxdr->dma & 0xFFFFFFFF)); 1069 ew32(RDBAH, ((u64)rxdr->dma >> 32)); 1070 ew32(RDLEN, rxdr->size); 1071 ew32(RDH, 0); 1072 ew32(RDT, 0); 1073 rctl = E1000_RCTL_EN | E1000_RCTL_BAM | E1000_RCTL_SZ_2048 | 1074 E1000_RCTL_LBM_NO | E1000_RCTL_RDMTS_HALF | 1075 (hw->mc_filter_type << E1000_RCTL_MO_SHIFT); 1076 ew32(RCTL, rctl); 1077 1078 for (i = 0; i < rxdr->count; i++) { 1079 struct e1000_rx_desc *rx_desc = E1000_RX_DESC(*rxdr, i); 1080 u8 *buf; 1081 1082 buf = kzalloc(E1000_RXBUFFER_2048 + NET_SKB_PAD + NET_IP_ALIGN, 1083 GFP_KERNEL); 1084 if (!buf) { 1085 ret_val = 7; 1086 goto err_nomem; 1087 } 1088 rxdr->buffer_info[i].rxbuf.data = buf; 1089 1090 rxdr->buffer_info[i].dma = 1091 dma_map_single(&pdev->dev, 1092 buf + NET_SKB_PAD + NET_IP_ALIGN, 1093 E1000_RXBUFFER_2048, DMA_FROM_DEVICE); 1094 if (dma_mapping_error(&pdev->dev, rxdr->buffer_info[i].dma)) { 1095 ret_val = 8; 1096 goto err_nomem; 1097 } 1098 rx_desc->buffer_addr = cpu_to_le64(rxdr->buffer_info[i].dma); 1099 } 1100 1101 return 0; 1102 1103 err_nomem: 1104 e1000_free_desc_rings(adapter); 1105 return ret_val; 1106 } 1107 1108 static void e1000_phy_disable_receiver(struct e1000_adapter *adapter) 1109 { 1110 struct e1000_hw *hw = &adapter->hw; 1111 1112 /* Write out to PHY registers 29 and 30 to disable the Receiver. */ 1113 e1000_write_phy_reg(hw, 29, 0x001F); 1114 e1000_write_phy_reg(hw, 30, 0x8FFC); 1115 e1000_write_phy_reg(hw, 29, 0x001A); 1116 e1000_write_phy_reg(hw, 30, 0x8FF0); 1117 } 1118 1119 static void e1000_phy_reset_clk_and_crs(struct e1000_adapter *adapter) 1120 { 1121 struct e1000_hw *hw = &adapter->hw; 1122 u16 phy_reg; 1123 1124 /* Because we reset the PHY above, we need to re-force TX_CLK in the 1125 * Extended PHY Specific Control Register to 25MHz clock. This 1126 * value defaults back to a 2.5MHz clock when the PHY is reset. 1127 */ 1128 e1000_read_phy_reg(hw, M88E1000_EXT_PHY_SPEC_CTRL, &phy_reg); 1129 phy_reg |= M88E1000_EPSCR_TX_CLK_25; 1130 e1000_write_phy_reg(hw, M88E1000_EXT_PHY_SPEC_CTRL, phy_reg); 1131 1132 /* In addition, because of the s/w reset above, we need to enable 1133 * CRS on TX. This must be set for both full and half duplex 1134 * operation. 1135 */ 1136 e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, &phy_reg); 1137 phy_reg |= M88E1000_PSCR_ASSERT_CRS_ON_TX; 1138 e1000_write_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, phy_reg); 1139 } 1140 1141 static int e1000_nonintegrated_phy_loopback(struct e1000_adapter *adapter) 1142 { 1143 struct e1000_hw *hw = &adapter->hw; 1144 u32 ctrl_reg; 1145 u16 phy_reg; 1146 1147 /* Setup the Device Control Register for PHY loopback test. */ 1148 1149 ctrl_reg = er32(CTRL); 1150 ctrl_reg |= (E1000_CTRL_ILOS | /* Invert Loss-Of-Signal */ 1151 E1000_CTRL_FRCSPD | /* Set the Force Speed Bit */ 1152 E1000_CTRL_FRCDPX | /* Set the Force Duplex Bit */ 1153 E1000_CTRL_SPD_1000 | /* Force Speed to 1000 */ 1154 E1000_CTRL_FD); /* Force Duplex to FULL */ 1155 1156 ew32(CTRL, ctrl_reg); 1157 1158 /* Read the PHY Specific Control Register (0x10) */ 1159 e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, &phy_reg); 1160 1161 /* Clear Auto-Crossover bits in PHY Specific Control Register 1162 * (bits 6:5). 1163 */ 1164 phy_reg &= ~M88E1000_PSCR_AUTO_X_MODE; 1165 e1000_write_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, phy_reg); 1166 1167 /* Perform software reset on the PHY */ 1168 e1000_phy_reset(hw); 1169 1170 /* Have to setup TX_CLK and TX_CRS after software reset */ 1171 e1000_phy_reset_clk_and_crs(adapter); 1172 1173 e1000_write_phy_reg(hw, PHY_CTRL, 0x8100); 1174 1175 /* Wait for reset to complete. */ 1176 udelay(500); 1177 1178 /* Have to setup TX_CLK and TX_CRS after software reset */ 1179 e1000_phy_reset_clk_and_crs(adapter); 1180 1181 /* Write out to PHY registers 29 and 30 to disable the Receiver. */ 1182 e1000_phy_disable_receiver(adapter); 1183 1184 /* Set the loopback bit in the PHY control register. */ 1185 e1000_read_phy_reg(hw, PHY_CTRL, &phy_reg); 1186 phy_reg |= MII_CR_LOOPBACK; 1187 e1000_write_phy_reg(hw, PHY_CTRL, phy_reg); 1188 1189 /* Setup TX_CLK and TX_CRS one more time. */ 1190 e1000_phy_reset_clk_and_crs(adapter); 1191 1192 /* Check Phy Configuration */ 1193 e1000_read_phy_reg(hw, PHY_CTRL, &phy_reg); 1194 if (phy_reg != 0x4100) 1195 return 9; 1196 1197 e1000_read_phy_reg(hw, M88E1000_EXT_PHY_SPEC_CTRL, &phy_reg); 1198 if (phy_reg != 0x0070) 1199 return 10; 1200 1201 e1000_read_phy_reg(hw, 29, &phy_reg); 1202 if (phy_reg != 0x001A) 1203 return 11; 1204 1205 return 0; 1206 } 1207 1208 static int e1000_integrated_phy_loopback(struct e1000_adapter *adapter) 1209 { 1210 struct e1000_hw *hw = &adapter->hw; 1211 u32 ctrl_reg = 0; 1212 u32 stat_reg = 0; 1213 1214 hw->autoneg = false; 1215 1216 if (hw->phy_type == e1000_phy_m88) { 1217 /* Auto-MDI/MDIX Off */ 1218 e1000_write_phy_reg(hw, 1219 M88E1000_PHY_SPEC_CTRL, 0x0808); 1220 /* reset to update Auto-MDI/MDIX */ 1221 e1000_write_phy_reg(hw, PHY_CTRL, 0x9140); 1222 /* autoneg off */ 1223 e1000_write_phy_reg(hw, PHY_CTRL, 0x8140); 1224 } 1225 1226 ctrl_reg = er32(CTRL); 1227 1228 /* force 1000, set loopback */ 1229 e1000_write_phy_reg(hw, PHY_CTRL, 0x4140); 1230 1231 /* Now set up the MAC to the same speed/duplex as the PHY. */ 1232 ctrl_reg = er32(CTRL); 1233 ctrl_reg &= ~E1000_CTRL_SPD_SEL; /* Clear the speed sel bits */ 1234 ctrl_reg |= (E1000_CTRL_FRCSPD | /* Set the Force Speed Bit */ 1235 E1000_CTRL_FRCDPX | /* Set the Force Duplex Bit */ 1236 E1000_CTRL_SPD_1000 |/* Force Speed to 1000 */ 1237 E1000_CTRL_FD); /* Force Duplex to FULL */ 1238 1239 if (hw->media_type == e1000_media_type_copper && 1240 hw->phy_type == e1000_phy_m88) 1241 ctrl_reg |= E1000_CTRL_ILOS; /* Invert Loss of Signal */ 1242 else { 1243 /* Set the ILOS bit on the fiber Nic is half 1244 * duplex link is detected. 1245 */ 1246 stat_reg = er32(STATUS); 1247 if ((stat_reg & E1000_STATUS_FD) == 0) 1248 ctrl_reg |= (E1000_CTRL_ILOS | E1000_CTRL_SLU); 1249 } 1250 1251 ew32(CTRL, ctrl_reg); 1252 1253 /* Disable the receiver on the PHY so when a cable is plugged in, the 1254 * PHY does not begin to autoneg when a cable is reconnected to the NIC. 1255 */ 1256 if (hw->phy_type == e1000_phy_m88) 1257 e1000_phy_disable_receiver(adapter); 1258 1259 udelay(500); 1260 1261 return 0; 1262 } 1263 1264 static int e1000_set_phy_loopback(struct e1000_adapter *adapter) 1265 { 1266 struct e1000_hw *hw = &adapter->hw; 1267 u16 phy_reg = 0; 1268 u16 count = 0; 1269 1270 switch (hw->mac_type) { 1271 case e1000_82543: 1272 if (hw->media_type == e1000_media_type_copper) { 1273 /* Attempt to setup Loopback mode on Non-integrated PHY. 1274 * Some PHY registers get corrupted at random, so 1275 * attempt this 10 times. 1276 */ 1277 while (e1000_nonintegrated_phy_loopback(adapter) && 1278 count++ < 10); 1279 if (count < 11) 1280 return 0; 1281 } 1282 break; 1283 1284 case e1000_82544: 1285 case e1000_82540: 1286 case e1000_82545: 1287 case e1000_82545_rev_3: 1288 case e1000_82546: 1289 case e1000_82546_rev_3: 1290 case e1000_82541: 1291 case e1000_82541_rev_2: 1292 case e1000_82547: 1293 case e1000_82547_rev_2: 1294 return e1000_integrated_phy_loopback(adapter); 1295 default: 1296 /* Default PHY loopback work is to read the MII 1297 * control register and assert bit 14 (loopback mode). 1298 */ 1299 e1000_read_phy_reg(hw, PHY_CTRL, &phy_reg); 1300 phy_reg |= MII_CR_LOOPBACK; 1301 e1000_write_phy_reg(hw, PHY_CTRL, phy_reg); 1302 return 0; 1303 } 1304 1305 return 8; 1306 } 1307 1308 static int e1000_setup_loopback_test(struct e1000_adapter *adapter) 1309 { 1310 struct e1000_hw *hw = &adapter->hw; 1311 u32 rctl; 1312 1313 if (hw->media_type == e1000_media_type_fiber || 1314 hw->media_type == e1000_media_type_internal_serdes) { 1315 switch (hw->mac_type) { 1316 case e1000_82545: 1317 case e1000_82546: 1318 case e1000_82545_rev_3: 1319 case e1000_82546_rev_3: 1320 return e1000_set_phy_loopback(adapter); 1321 default: 1322 rctl = er32(RCTL); 1323 rctl |= E1000_RCTL_LBM_TCVR; 1324 ew32(RCTL, rctl); 1325 return 0; 1326 } 1327 } else if (hw->media_type == e1000_media_type_copper) { 1328 return e1000_set_phy_loopback(adapter); 1329 } 1330 1331 return 7; 1332 } 1333 1334 static void e1000_loopback_cleanup(struct e1000_adapter *adapter) 1335 { 1336 struct e1000_hw *hw = &adapter->hw; 1337 u32 rctl; 1338 u16 phy_reg; 1339 1340 rctl = er32(RCTL); 1341 rctl &= ~(E1000_RCTL_LBM_TCVR | E1000_RCTL_LBM_MAC); 1342 ew32(RCTL, rctl); 1343 1344 switch (hw->mac_type) { 1345 case e1000_82545: 1346 case e1000_82546: 1347 case e1000_82545_rev_3: 1348 case e1000_82546_rev_3: 1349 default: 1350 hw->autoneg = true; 1351 e1000_read_phy_reg(hw, PHY_CTRL, &phy_reg); 1352 if (phy_reg & MII_CR_LOOPBACK) { 1353 phy_reg &= ~MII_CR_LOOPBACK; 1354 e1000_write_phy_reg(hw, PHY_CTRL, phy_reg); 1355 e1000_phy_reset(hw); 1356 } 1357 break; 1358 } 1359 } 1360 1361 static void e1000_create_lbtest_frame(struct sk_buff *skb, 1362 unsigned int frame_size) 1363 { 1364 memset(skb->data, 0xFF, frame_size); 1365 frame_size &= ~1; 1366 memset(&skb->data[frame_size / 2], 0xAA, frame_size / 2 - 1); 1367 skb->data[frame_size / 2 + 10] = 0xBE; 1368 skb->data[frame_size / 2 + 12] = 0xAF; 1369 } 1370 1371 static int e1000_check_lbtest_frame(const unsigned char *data, 1372 unsigned int frame_size) 1373 { 1374 frame_size &= ~1; 1375 if (*(data + 3) == 0xFF) { 1376 if ((*(data + frame_size / 2 + 10) == 0xBE) && 1377 (*(data + frame_size / 2 + 12) == 0xAF)) { 1378 return 0; 1379 } 1380 } 1381 return 13; 1382 } 1383 1384 static int e1000_run_loopback_test(struct e1000_adapter *adapter) 1385 { 1386 struct e1000_hw *hw = &adapter->hw; 1387 struct e1000_tx_ring *txdr = &adapter->test_tx_ring; 1388 struct e1000_rx_ring *rxdr = &adapter->test_rx_ring; 1389 struct pci_dev *pdev = adapter->pdev; 1390 int i, j, k, l, lc, good_cnt, ret_val = 0; 1391 unsigned long time; 1392 1393 ew32(RDT, rxdr->count - 1); 1394 1395 /* Calculate the loop count based on the largest descriptor ring 1396 * The idea is to wrap the largest ring a number of times using 64 1397 * send/receive pairs during each loop 1398 */ 1399 1400 if (rxdr->count <= txdr->count) 1401 lc = ((txdr->count / 64) * 2) + 1; 1402 else 1403 lc = ((rxdr->count / 64) * 2) + 1; 1404 1405 k = l = 0; 1406 for (j = 0; j <= lc; j++) { /* loop count loop */ 1407 for (i = 0; i < 64; i++) { /* send the packets */ 1408 e1000_create_lbtest_frame(txdr->buffer_info[i].skb, 1409 1024); 1410 dma_sync_single_for_device(&pdev->dev, 1411 txdr->buffer_info[k].dma, 1412 txdr->buffer_info[k].length, 1413 DMA_TO_DEVICE); 1414 if (unlikely(++k == txdr->count)) 1415 k = 0; 1416 } 1417 ew32(TDT, k); 1418 E1000_WRITE_FLUSH(); 1419 msleep(200); 1420 time = jiffies; /* set the start time for the receive */ 1421 good_cnt = 0; 1422 do { /* receive the sent packets */ 1423 dma_sync_single_for_cpu(&pdev->dev, 1424 rxdr->buffer_info[l].dma, 1425 E1000_RXBUFFER_2048, 1426 DMA_FROM_DEVICE); 1427 1428 ret_val = e1000_check_lbtest_frame( 1429 rxdr->buffer_info[l].rxbuf.data + 1430 NET_SKB_PAD + NET_IP_ALIGN, 1431 1024); 1432 if (!ret_val) 1433 good_cnt++; 1434 if (unlikely(++l == rxdr->count)) 1435 l = 0; 1436 /* time + 20 msecs (200 msecs on 2.4) is more than 1437 * enough time to complete the receives, if it's 1438 * exceeded, break and error off 1439 */ 1440 } while (good_cnt < 64 && time_after(time + 20, jiffies)); 1441 1442 if (good_cnt != 64) { 1443 ret_val = 13; /* ret_val is the same as mis-compare */ 1444 break; 1445 } 1446 if (time_after_eq(jiffies, time + 2)) { 1447 ret_val = 14; /* error code for time out error */ 1448 break; 1449 } 1450 } /* end loop count loop */ 1451 return ret_val; 1452 } 1453 1454 static int e1000_loopback_test(struct e1000_adapter *adapter, u64 *data) 1455 { 1456 *data = e1000_setup_desc_rings(adapter); 1457 if (*data) 1458 goto out; 1459 *data = e1000_setup_loopback_test(adapter); 1460 if (*data) 1461 goto err_loopback; 1462 *data = e1000_run_loopback_test(adapter); 1463 e1000_loopback_cleanup(adapter); 1464 1465 err_loopback: 1466 e1000_free_desc_rings(adapter); 1467 out: 1468 return *data; 1469 } 1470 1471 static int e1000_link_test(struct e1000_adapter *adapter, u64 *data) 1472 { 1473 struct e1000_hw *hw = &adapter->hw; 1474 *data = 0; 1475 if (hw->media_type == e1000_media_type_internal_serdes) { 1476 int i = 0; 1477 1478 hw->serdes_has_link = false; 1479 1480 /* On some blade server designs, link establishment 1481 * could take as long as 2-3 minutes 1482 */ 1483 do { 1484 e1000_check_for_link(hw); 1485 if (hw->serdes_has_link) 1486 return *data; 1487 msleep(20); 1488 } while (i++ < 3750); 1489 1490 *data = 1; 1491 } else { 1492 e1000_check_for_link(hw); 1493 if (hw->autoneg) /* if auto_neg is set wait for it */ 1494 msleep(4000); 1495 1496 if (!(er32(STATUS) & E1000_STATUS_LU)) 1497 *data = 1; 1498 } 1499 return *data; 1500 } 1501 1502 static int e1000_get_sset_count(struct net_device *netdev, int sset) 1503 { 1504 switch (sset) { 1505 case ETH_SS_TEST: 1506 return E1000_TEST_LEN; 1507 case ETH_SS_STATS: 1508 return E1000_STATS_LEN; 1509 default: 1510 return -EOPNOTSUPP; 1511 } 1512 } 1513 1514 static void e1000_diag_test(struct net_device *netdev, 1515 struct ethtool_test *eth_test, u64 *data) 1516 { 1517 struct e1000_adapter *adapter = netdev_priv(netdev); 1518 struct e1000_hw *hw = &adapter->hw; 1519 bool if_running = netif_running(netdev); 1520 1521 set_bit(__E1000_TESTING, &adapter->flags); 1522 if (eth_test->flags == ETH_TEST_FL_OFFLINE) { 1523 /* Offline tests */ 1524 1525 /* save speed, duplex, autoneg settings */ 1526 u16 autoneg_advertised = hw->autoneg_advertised; 1527 u8 forced_speed_duplex = hw->forced_speed_duplex; 1528 u8 autoneg = hw->autoneg; 1529 1530 e_info(hw, "offline testing starting\n"); 1531 1532 /* Link test performed before hardware reset so autoneg doesn't 1533 * interfere with test result 1534 */ 1535 if (e1000_link_test(adapter, &data[4])) 1536 eth_test->flags |= ETH_TEST_FL_FAILED; 1537 1538 if (if_running) 1539 /* indicate we're in test mode */ 1540 e1000_close(netdev); 1541 else 1542 e1000_reset(adapter); 1543 1544 if (e1000_reg_test(adapter, &data[0])) 1545 eth_test->flags |= ETH_TEST_FL_FAILED; 1546 1547 e1000_reset(adapter); 1548 if (e1000_eeprom_test(adapter, &data[1])) 1549 eth_test->flags |= ETH_TEST_FL_FAILED; 1550 1551 e1000_reset(adapter); 1552 if (e1000_intr_test(adapter, &data[2])) 1553 eth_test->flags |= ETH_TEST_FL_FAILED; 1554 1555 e1000_reset(adapter); 1556 /* make sure the phy is powered up */ 1557 e1000_power_up_phy(adapter); 1558 if (e1000_loopback_test(adapter, &data[3])) 1559 eth_test->flags |= ETH_TEST_FL_FAILED; 1560 1561 /* restore speed, duplex, autoneg settings */ 1562 hw->autoneg_advertised = autoneg_advertised; 1563 hw->forced_speed_duplex = forced_speed_duplex; 1564 hw->autoneg = autoneg; 1565 1566 e1000_reset(adapter); 1567 clear_bit(__E1000_TESTING, &adapter->flags); 1568 if (if_running) 1569 e1000_open(netdev); 1570 } else { 1571 e_info(hw, "online testing starting\n"); 1572 /* Online tests */ 1573 if (e1000_link_test(adapter, &data[4])) 1574 eth_test->flags |= ETH_TEST_FL_FAILED; 1575 1576 /* Online tests aren't run; pass by default */ 1577 data[0] = 0; 1578 data[1] = 0; 1579 data[2] = 0; 1580 data[3] = 0; 1581 1582 clear_bit(__E1000_TESTING, &adapter->flags); 1583 } 1584 msleep_interruptible(4 * 1000); 1585 } 1586 1587 static int e1000_wol_exclusion(struct e1000_adapter *adapter, 1588 struct ethtool_wolinfo *wol) 1589 { 1590 struct e1000_hw *hw = &adapter->hw; 1591 int retval = 1; /* fail by default */ 1592 1593 switch (hw->device_id) { 1594 case E1000_DEV_ID_82542: 1595 case E1000_DEV_ID_82543GC_FIBER: 1596 case E1000_DEV_ID_82543GC_COPPER: 1597 case E1000_DEV_ID_82544EI_FIBER: 1598 case E1000_DEV_ID_82546EB_QUAD_COPPER: 1599 case E1000_DEV_ID_82545EM_FIBER: 1600 case E1000_DEV_ID_82545EM_COPPER: 1601 case E1000_DEV_ID_82546GB_QUAD_COPPER: 1602 case E1000_DEV_ID_82546GB_PCIE: 1603 /* these don't support WoL at all */ 1604 wol->supported = 0; 1605 break; 1606 case E1000_DEV_ID_82546EB_FIBER: 1607 case E1000_DEV_ID_82546GB_FIBER: 1608 /* Wake events not supported on port B */ 1609 if (er32(STATUS) & E1000_STATUS_FUNC_1) { 1610 wol->supported = 0; 1611 break; 1612 } 1613 /* return success for non excluded adapter ports */ 1614 retval = 0; 1615 break; 1616 case E1000_DEV_ID_82546GB_QUAD_COPPER_KSP3: 1617 /* quad port adapters only support WoL on port A */ 1618 if (!adapter->quad_port_a) { 1619 wol->supported = 0; 1620 break; 1621 } 1622 /* return success for non excluded adapter ports */ 1623 retval = 0; 1624 break; 1625 default: 1626 /* dual port cards only support WoL on port A from now on 1627 * unless it was enabled in the eeprom for port B 1628 * so exclude FUNC_1 ports from having WoL enabled 1629 */ 1630 if (er32(STATUS) & E1000_STATUS_FUNC_1 && 1631 !adapter->eeprom_wol) { 1632 wol->supported = 0; 1633 break; 1634 } 1635 1636 retval = 0; 1637 } 1638 1639 return retval; 1640 } 1641 1642 static void e1000_get_wol(struct net_device *netdev, 1643 struct ethtool_wolinfo *wol) 1644 { 1645 struct e1000_adapter *adapter = netdev_priv(netdev); 1646 struct e1000_hw *hw = &adapter->hw; 1647 1648 wol->supported = WAKE_UCAST | WAKE_MCAST | WAKE_BCAST | WAKE_MAGIC; 1649 wol->wolopts = 0; 1650 1651 /* this function will set ->supported = 0 and return 1 if wol is not 1652 * supported by this hardware 1653 */ 1654 if (e1000_wol_exclusion(adapter, wol) || 1655 !device_can_wakeup(&adapter->pdev->dev)) 1656 return; 1657 1658 /* apply any specific unsupported masks here */ 1659 switch (hw->device_id) { 1660 case E1000_DEV_ID_82546GB_QUAD_COPPER_KSP3: 1661 /* KSP3 does not support UCAST wake-ups */ 1662 wol->supported &= ~WAKE_UCAST; 1663 1664 if (adapter->wol & E1000_WUFC_EX) 1665 e_err(drv, "Interface does not support directed " 1666 "(unicast) frame wake-up packets\n"); 1667 break; 1668 default: 1669 break; 1670 } 1671 1672 if (adapter->wol & E1000_WUFC_EX) 1673 wol->wolopts |= WAKE_UCAST; 1674 if (adapter->wol & E1000_WUFC_MC) 1675 wol->wolopts |= WAKE_MCAST; 1676 if (adapter->wol & E1000_WUFC_BC) 1677 wol->wolopts |= WAKE_BCAST; 1678 if (adapter->wol & E1000_WUFC_MAG) 1679 wol->wolopts |= WAKE_MAGIC; 1680 } 1681 1682 static int e1000_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol) 1683 { 1684 struct e1000_adapter *adapter = netdev_priv(netdev); 1685 struct e1000_hw *hw = &adapter->hw; 1686 1687 if (wol->wolopts & (WAKE_PHY | WAKE_ARP | WAKE_MAGICSECURE)) 1688 return -EOPNOTSUPP; 1689 1690 if (e1000_wol_exclusion(adapter, wol) || 1691 !device_can_wakeup(&adapter->pdev->dev)) 1692 return wol->wolopts ? -EOPNOTSUPP : 0; 1693 1694 switch (hw->device_id) { 1695 case E1000_DEV_ID_82546GB_QUAD_COPPER_KSP3: 1696 if (wol->wolopts & WAKE_UCAST) { 1697 e_err(drv, "Interface does not support directed " 1698 "(unicast) frame wake-up packets\n"); 1699 return -EOPNOTSUPP; 1700 } 1701 break; 1702 default: 1703 break; 1704 } 1705 1706 /* these settings will always override what we currently have */ 1707 adapter->wol = 0; 1708 1709 if (wol->wolopts & WAKE_UCAST) 1710 adapter->wol |= E1000_WUFC_EX; 1711 if (wol->wolopts & WAKE_MCAST) 1712 adapter->wol |= E1000_WUFC_MC; 1713 if (wol->wolopts & WAKE_BCAST) 1714 adapter->wol |= E1000_WUFC_BC; 1715 if (wol->wolopts & WAKE_MAGIC) 1716 adapter->wol |= E1000_WUFC_MAG; 1717 1718 device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol); 1719 1720 return 0; 1721 } 1722 1723 static int e1000_set_phys_id(struct net_device *netdev, 1724 enum ethtool_phys_id_state state) 1725 { 1726 struct e1000_adapter *adapter = netdev_priv(netdev); 1727 struct e1000_hw *hw = &adapter->hw; 1728 1729 switch (state) { 1730 case ETHTOOL_ID_ACTIVE: 1731 e1000_setup_led(hw); 1732 return 2; 1733 1734 case ETHTOOL_ID_ON: 1735 e1000_led_on(hw); 1736 break; 1737 1738 case ETHTOOL_ID_OFF: 1739 e1000_led_off(hw); 1740 break; 1741 1742 case ETHTOOL_ID_INACTIVE: 1743 e1000_cleanup_led(hw); 1744 } 1745 1746 return 0; 1747 } 1748 1749 static int e1000_get_coalesce(struct net_device *netdev, 1750 struct ethtool_coalesce *ec, 1751 struct kernel_ethtool_coalesce *kernel_coal, 1752 struct netlink_ext_ack *extack) 1753 { 1754 struct e1000_adapter *adapter = netdev_priv(netdev); 1755 1756 if (adapter->hw.mac_type < e1000_82545) 1757 return -EOPNOTSUPP; 1758 1759 if (adapter->itr_setting <= 4) 1760 ec->rx_coalesce_usecs = adapter->itr_setting; 1761 else 1762 ec->rx_coalesce_usecs = 1000000 / adapter->itr_setting; 1763 1764 return 0; 1765 } 1766 1767 static int e1000_set_coalesce(struct net_device *netdev, 1768 struct ethtool_coalesce *ec, 1769 struct kernel_ethtool_coalesce *kernel_coal, 1770 struct netlink_ext_ack *extack) 1771 { 1772 struct e1000_adapter *adapter = netdev_priv(netdev); 1773 struct e1000_hw *hw = &adapter->hw; 1774 1775 if (hw->mac_type < e1000_82545) 1776 return -EOPNOTSUPP; 1777 1778 if ((ec->rx_coalesce_usecs > E1000_MAX_ITR_USECS) || 1779 ((ec->rx_coalesce_usecs > 4) && 1780 (ec->rx_coalesce_usecs < E1000_MIN_ITR_USECS)) || 1781 (ec->rx_coalesce_usecs == 2)) 1782 return -EINVAL; 1783 1784 if (ec->rx_coalesce_usecs == 4) { 1785 adapter->itr = adapter->itr_setting = 4; 1786 } else if (ec->rx_coalesce_usecs <= 3) { 1787 adapter->itr = 20000; 1788 adapter->itr_setting = ec->rx_coalesce_usecs; 1789 } else { 1790 adapter->itr = (1000000 / ec->rx_coalesce_usecs); 1791 adapter->itr_setting = adapter->itr & ~3; 1792 } 1793 1794 if (adapter->itr_setting != 0) 1795 ew32(ITR, 1000000000 / (adapter->itr * 256)); 1796 else 1797 ew32(ITR, 0); 1798 1799 return 0; 1800 } 1801 1802 static int e1000_nway_reset(struct net_device *netdev) 1803 { 1804 struct e1000_adapter *adapter = netdev_priv(netdev); 1805 1806 if (netif_running(netdev)) 1807 e1000_reinit_locked(adapter); 1808 return 0; 1809 } 1810 1811 static void e1000_get_ethtool_stats(struct net_device *netdev, 1812 struct ethtool_stats *stats, u64 *data) 1813 { 1814 struct e1000_adapter *adapter = netdev_priv(netdev); 1815 int i; 1816 const struct e1000_stats *stat = e1000_gstrings_stats; 1817 1818 e1000_update_stats(adapter); 1819 for (i = 0; i < E1000_GLOBAL_STATS_LEN; i++, stat++) { 1820 char *p; 1821 1822 switch (stat->type) { 1823 case NETDEV_STATS: 1824 p = (char *)netdev + stat->stat_offset; 1825 break; 1826 case E1000_STATS: 1827 p = (char *)adapter + stat->stat_offset; 1828 break; 1829 default: 1830 netdev_WARN_ONCE(netdev, "Invalid E1000 stat type: %u index %d\n", 1831 stat->type, i); 1832 continue; 1833 } 1834 1835 if (stat->sizeof_stat == sizeof(u64)) 1836 data[i] = *(u64 *)p; 1837 else 1838 data[i] = *(u32 *)p; 1839 } 1840 /* BUG_ON(i != E1000_STATS_LEN); */ 1841 } 1842 1843 static void e1000_get_strings(struct net_device *netdev, u32 stringset, 1844 u8 *data) 1845 { 1846 u8 *p = data; 1847 int i; 1848 1849 switch (stringset) { 1850 case ETH_SS_TEST: 1851 memcpy(data, e1000_gstrings_test, sizeof(e1000_gstrings_test)); 1852 break; 1853 case ETH_SS_STATS: 1854 for (i = 0; i < E1000_GLOBAL_STATS_LEN; i++) { 1855 memcpy(p, e1000_gstrings_stats[i].stat_string, 1856 ETH_GSTRING_LEN); 1857 p += ETH_GSTRING_LEN; 1858 } 1859 /* BUG_ON(p - data != E1000_STATS_LEN * ETH_GSTRING_LEN); */ 1860 break; 1861 } 1862 } 1863 1864 static const struct ethtool_ops e1000_ethtool_ops = { 1865 .supported_coalesce_params = ETHTOOL_COALESCE_RX_USECS, 1866 .get_drvinfo = e1000_get_drvinfo, 1867 .get_regs_len = e1000_get_regs_len, 1868 .get_regs = e1000_get_regs, 1869 .get_wol = e1000_get_wol, 1870 .set_wol = e1000_set_wol, 1871 .get_msglevel = e1000_get_msglevel, 1872 .set_msglevel = e1000_set_msglevel, 1873 .nway_reset = e1000_nway_reset, 1874 .get_link = e1000_get_link, 1875 .get_eeprom_len = e1000_get_eeprom_len, 1876 .get_eeprom = e1000_get_eeprom, 1877 .set_eeprom = e1000_set_eeprom, 1878 .get_ringparam = e1000_get_ringparam, 1879 .set_ringparam = e1000_set_ringparam, 1880 .get_pauseparam = e1000_get_pauseparam, 1881 .set_pauseparam = e1000_set_pauseparam, 1882 .self_test = e1000_diag_test, 1883 .get_strings = e1000_get_strings, 1884 .set_phys_id = e1000_set_phys_id, 1885 .get_ethtool_stats = e1000_get_ethtool_stats, 1886 .get_sset_count = e1000_get_sset_count, 1887 .get_coalesce = e1000_get_coalesce, 1888 .set_coalesce = e1000_set_coalesce, 1889 .get_ts_info = ethtool_op_get_ts_info, 1890 .get_link_ksettings = e1000_get_link_ksettings, 1891 .set_link_ksettings = e1000_set_link_ksettings, 1892 }; 1893 1894 void e1000_set_ethtool_ops(struct net_device *netdev) 1895 { 1896 netdev->ethtool_ops = &e1000_ethtool_ops; 1897 } 1898