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