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1// SPDX-License-Identifier: GPL-2.02/* Copyright(c) 1999 - 2006 Intel Corporation. */3 4#include "e1000.h"5 6/* This is the only thing that needs to be changed to adjust the7 * maximum number of ports that the driver can manage.8 */9 10#define E1000_MAX_NIC 3211 12#define OPTION_UNSET -113#define OPTION_DISABLED 014#define OPTION_ENABLED 115 16/* All parameters are treated the same, as an integer array of values.17 * This macro just reduces the need to repeat the same declaration code18 * over and over (plus this helps to avoid typo bugs).19 */20 21#define E1000_PARAM_INIT { [0 ... E1000_MAX_NIC] = OPTION_UNSET }22#define E1000_PARAM(X, desc) \23 static int X[E1000_MAX_NIC+1] = E1000_PARAM_INIT; \24 static unsigned int num_##X; \25 module_param_array_named(X, X, int, &num_##X, 0); \26 MODULE_PARM_DESC(X, desc);27 28/* Transmit Descriptor Count29 *30 * Valid Range: 80-256 for 82542 and 82543 gigabit ethernet controllers31 * Valid Range: 80-4096 for 82544 and newer32 *33 * Default Value: 25634 */35E1000_PARAM(TxDescriptors, "Number of transmit descriptors");36 37/* Receive Descriptor Count38 *39 * Valid Range: 80-256 for 82542 and 82543 gigabit ethernet controllers40 * Valid Range: 80-4096 for 82544 and newer41 *42 * Default Value: 25643 */44E1000_PARAM(RxDescriptors, "Number of receive descriptors");45 46/* User Specified Speed Override47 *48 * Valid Range: 0, 10, 100, 100049 * - 0 - auto-negotiate at all supported speeds50 * - 10 - only link at 10 Mbps51 * - 100 - only link at 100 Mbps52 * - 1000 - only link at 1000 Mbps53 *54 * Default Value: 055 */56E1000_PARAM(Speed, "Speed setting");57 58/* User Specified Duplex Override59 *60 * Valid Range: 0-261 * - 0 - auto-negotiate for duplex62 * - 1 - only link at half duplex63 * - 2 - only link at full duplex64 *65 * Default Value: 066 */67E1000_PARAM(Duplex, "Duplex setting");68 69/* Auto-negotiation Advertisement Override70 *71 * Valid Range: 0x01-0x0F, 0x20-0x2F (copper); 0x20 (fiber)72 *73 * The AutoNeg value is a bit mask describing which speed and duplex74 * combinations should be advertised during auto-negotiation.75 * The supported speed and duplex modes are listed below76 *77 * Bit 7 6 5 4 3 2 1 078 * Speed (Mbps) N/A N/A 1000 N/A 100 100 10 1079 * Duplex Full Full Half Full Half80 *81 * Default Value: 0x2F (copper); 0x20 (fiber)82 */83E1000_PARAM(AutoNeg, "Advertised auto-negotiation setting");84#define AUTONEG_ADV_DEFAULT 0x2F85 86/* User Specified Flow Control Override87 *88 * Valid Range: 0-389 * - 0 - No Flow Control90 * - 1 - Rx only, respond to PAUSE frames but do not generate them91 * - 2 - Tx only, generate PAUSE frames but ignore them on receive92 * - 3 - Full Flow Control Support93 *94 * Default Value: Read flow control settings from the EEPROM95 */96E1000_PARAM(FlowControl, "Flow Control setting");97 98/* XsumRX - Receive Checksum Offload Enable/Disable99 *100 * Valid Range: 0, 1101 * - 0 - disables all checksum offload102 * - 1 - enables receive IP/TCP/UDP checksum offload103 * on 82543 and newer -based NICs104 *105 * Default Value: 1106 */107E1000_PARAM(XsumRX, "Disable or enable Receive Checksum offload");108 109/* Transmit Interrupt Delay in units of 1.024 microseconds110 * Tx interrupt delay needs to typically be set to something non zero111 *112 * Valid Range: 0-65535113 */114E1000_PARAM(TxIntDelay, "Transmit Interrupt Delay");115#define DEFAULT_TIDV 8116#define MAX_TXDELAY 0xFFFF117#define MIN_TXDELAY 0118 119/* Transmit Absolute Interrupt Delay in units of 1.024 microseconds120 *121 * Valid Range: 0-65535122 */123E1000_PARAM(TxAbsIntDelay, "Transmit Absolute Interrupt Delay");124#define DEFAULT_TADV 32125#define MAX_TXABSDELAY 0xFFFF126#define MIN_TXABSDELAY 0127 128/* Receive Interrupt Delay in units of 1.024 microseconds129 * hardware will likely hang if you set this to anything but zero.130 *131 * Valid Range: 0-65535132 */133E1000_PARAM(RxIntDelay, "Receive Interrupt Delay");134#define DEFAULT_RDTR 0135#define MAX_RXDELAY 0xFFFF136#define MIN_RXDELAY 0137 138/* Receive Absolute Interrupt Delay in units of 1.024 microseconds139 *140 * Valid Range: 0-65535141 */142E1000_PARAM(RxAbsIntDelay, "Receive Absolute Interrupt Delay");143#define DEFAULT_RADV 8144#define MAX_RXABSDELAY 0xFFFF145#define MIN_RXABSDELAY 0146 147/* Interrupt Throttle Rate (interrupts/sec)148 *149 * Valid Range: 100-100000 (0=off, 1=dynamic, 3=dynamic conservative)150 */151E1000_PARAM(InterruptThrottleRate, "Interrupt Throttling Rate");152#define DEFAULT_ITR 3153#define MAX_ITR 100000154#define MIN_ITR 100155 156/* Enable Smart Power Down of the PHY157 *158 * Valid Range: 0, 1159 *160 * Default Value: 0 (disabled)161 */162E1000_PARAM(SmartPowerDownEnable, "Enable PHY smart power down");163 164struct e1000_option {165 enum { enable_option, range_option, list_option } type;166 const char *name;167 const char *err;168 int def;169 union {170 struct { /* range_option info */171 int min;172 int max;173 } r;174 struct { /* list_option info */175 int nr;176 const struct e1000_opt_list { int i; char *str; } *p;177 } l;178 } arg;179};180 181static int e1000_validate_option(unsigned int *value,182 const struct e1000_option *opt,183 struct e1000_adapter *adapter)184{185 if (*value == OPTION_UNSET) {186 *value = opt->def;187 return 0;188 }189 190 switch (opt->type) {191 case enable_option:192 switch (*value) {193 case OPTION_ENABLED:194 e_dev_info("%s Enabled\n", opt->name);195 return 0;196 case OPTION_DISABLED:197 e_dev_info("%s Disabled\n", opt->name);198 return 0;199 }200 break;201 case range_option:202 if (*value >= opt->arg.r.min && *value <= opt->arg.r.max) {203 e_dev_info("%s set to %i\n", opt->name, *value);204 return 0;205 }206 break;207 case list_option: {208 int i;209 const struct e1000_opt_list *ent;210 211 for (i = 0; i < opt->arg.l.nr; i++) {212 ent = &opt->arg.l.p[i];213 if (*value == ent->i) {214 if (ent->str[0] != '\0')215 e_dev_info("%s\n", ent->str);216 return 0;217 }218 }219 }220 break;221 default:222 BUG();223 }224 225 e_dev_info("Invalid %s value specified (%i) %s\n",226 opt->name, *value, opt->err);227 *value = opt->def;228 return -1;229}230 231static void e1000_check_fiber_options(struct e1000_adapter *adapter);232static void e1000_check_copper_options(struct e1000_adapter *adapter);233 234/**235 * e1000_check_options - Range Checking for Command Line Parameters236 * @adapter: board private structure237 *238 * This routine checks all command line parameters for valid user239 * input. If an invalid value is given, or if no user specified240 * value exists, a default value is used. The final value is stored241 * in a variable in the adapter structure.242 **/243void e1000_check_options(struct e1000_adapter *adapter)244{245 struct e1000_option opt;246 int bd = adapter->bd_number;247 248 if (bd >= E1000_MAX_NIC) {249 e_dev_warn("Warning: no configuration for board #%i "250 "using defaults for all values\n", bd);251 }252 253 { /* Transmit Descriptor Count */254 struct e1000_tx_ring *tx_ring = adapter->tx_ring;255 int i;256 e1000_mac_type mac_type = adapter->hw.mac_type;257 258 opt = (struct e1000_option) {259 .type = range_option,260 .name = "Transmit Descriptors",261 .err = "using default of "262 __MODULE_STRING(E1000_DEFAULT_TXD),263 .def = E1000_DEFAULT_TXD,264 .arg = { .r = {265 .min = E1000_MIN_TXD,266 .max = mac_type < e1000_82544 ? E1000_MAX_TXD : E1000_MAX_82544_TXD267 }}268 };269 270 if (num_TxDescriptors > bd) {271 tx_ring->count = TxDescriptors[bd];272 e1000_validate_option(&tx_ring->count, &opt, adapter);273 tx_ring->count = ALIGN(tx_ring->count,274 REQ_TX_DESCRIPTOR_MULTIPLE);275 } else {276 tx_ring->count = opt.def;277 }278 for (i = 0; i < adapter->num_tx_queues; i++)279 tx_ring[i].count = tx_ring->count;280 }281 { /* Receive Descriptor Count */282 struct e1000_rx_ring *rx_ring = adapter->rx_ring;283 int i;284 e1000_mac_type mac_type = adapter->hw.mac_type;285 286 opt = (struct e1000_option) {287 .type = range_option,288 .name = "Receive Descriptors",289 .err = "using default of "290 __MODULE_STRING(E1000_DEFAULT_RXD),291 .def = E1000_DEFAULT_RXD,292 .arg = { .r = {293 .min = E1000_MIN_RXD,294 .max = mac_type < e1000_82544 ? E1000_MAX_RXD :295 E1000_MAX_82544_RXD296 }}297 };298 299 if (num_RxDescriptors > bd) {300 rx_ring->count = RxDescriptors[bd];301 e1000_validate_option(&rx_ring->count, &opt, adapter);302 rx_ring->count = ALIGN(rx_ring->count,303 REQ_RX_DESCRIPTOR_MULTIPLE);304 } else {305 rx_ring->count = opt.def;306 }307 for (i = 0; i < adapter->num_rx_queues; i++)308 rx_ring[i].count = rx_ring->count;309 }310 { /* Checksum Offload Enable/Disable */311 opt = (struct e1000_option) {312 .type = enable_option,313 .name = "Checksum Offload",314 .err = "defaulting to Enabled",315 .def = OPTION_ENABLED316 };317 318 if (num_XsumRX > bd) {319 unsigned int rx_csum = XsumRX[bd];320 e1000_validate_option(&rx_csum, &opt, adapter);321 adapter->rx_csum = rx_csum;322 } else {323 adapter->rx_csum = opt.def;324 }325 }326 { /* Flow Control */327 328 static const struct e1000_opt_list fc_list[] = {329 { E1000_FC_NONE, "Flow Control Disabled" },330 { E1000_FC_RX_PAUSE, "Flow Control Receive Only" },331 { E1000_FC_TX_PAUSE, "Flow Control Transmit Only" },332 { E1000_FC_FULL, "Flow Control Enabled" },333 { E1000_FC_DEFAULT, "Flow Control Hardware Default" }334 };335 336 opt = (struct e1000_option) {337 .type = list_option,338 .name = "Flow Control",339 .err = "reading default settings from EEPROM",340 .def = E1000_FC_DEFAULT,341 .arg = { .l = { .nr = ARRAY_SIZE(fc_list),342 .p = fc_list }}343 };344 345 if (num_FlowControl > bd) {346 unsigned int fc = FlowControl[bd];347 e1000_validate_option(&fc, &opt, adapter);348 adapter->hw.fc = adapter->hw.original_fc = fc;349 } else {350 adapter->hw.fc = adapter->hw.original_fc = opt.def;351 }352 }353 { /* Transmit Interrupt Delay */354 opt = (struct e1000_option) {355 .type = range_option,356 .name = "Transmit Interrupt Delay",357 .err = "using default of " __MODULE_STRING(DEFAULT_TIDV),358 .def = DEFAULT_TIDV,359 .arg = { .r = { .min = MIN_TXDELAY,360 .max = MAX_TXDELAY }}361 };362 363 if (num_TxIntDelay > bd) {364 adapter->tx_int_delay = TxIntDelay[bd];365 e1000_validate_option(&adapter->tx_int_delay, &opt,366 adapter);367 } else {368 adapter->tx_int_delay = opt.def;369 }370 }371 { /* Transmit Absolute Interrupt Delay */372 opt = (struct e1000_option) {373 .type = range_option,374 .name = "Transmit Absolute Interrupt Delay",375 .err = "using default of " __MODULE_STRING(DEFAULT_TADV),376 .def = DEFAULT_TADV,377 .arg = { .r = { .min = MIN_TXABSDELAY,378 .max = MAX_TXABSDELAY }}379 };380 381 if (num_TxAbsIntDelay > bd) {382 adapter->tx_abs_int_delay = TxAbsIntDelay[bd];383 e1000_validate_option(&adapter->tx_abs_int_delay, &opt,384 adapter);385 } else {386 adapter->tx_abs_int_delay = opt.def;387 }388 }389 { /* Receive Interrupt Delay */390 opt = (struct e1000_option) {391 .type = range_option,392 .name = "Receive Interrupt Delay",393 .err = "using default of " __MODULE_STRING(DEFAULT_RDTR),394 .def = DEFAULT_RDTR,395 .arg = { .r = { .min = MIN_RXDELAY,396 .max = MAX_RXDELAY }}397 };398 399 if (num_RxIntDelay > bd) {400 adapter->rx_int_delay = RxIntDelay[bd];401 e1000_validate_option(&adapter->rx_int_delay, &opt,402 adapter);403 } else {404 adapter->rx_int_delay = opt.def;405 }406 }407 { /* Receive Absolute Interrupt Delay */408 opt = (struct e1000_option) {409 .type = range_option,410 .name = "Receive Absolute Interrupt Delay",411 .err = "using default of " __MODULE_STRING(DEFAULT_RADV),412 .def = DEFAULT_RADV,413 .arg = { .r = { .min = MIN_RXABSDELAY,414 .max = MAX_RXABSDELAY }}415 };416 417 if (num_RxAbsIntDelay > bd) {418 adapter->rx_abs_int_delay = RxAbsIntDelay[bd];419 e1000_validate_option(&adapter->rx_abs_int_delay, &opt,420 adapter);421 } else {422 adapter->rx_abs_int_delay = opt.def;423 }424 }425 { /* Interrupt Throttling Rate */426 opt = (struct e1000_option) {427 .type = range_option,428 .name = "Interrupt Throttling Rate (ints/sec)",429 .err = "using default of " __MODULE_STRING(DEFAULT_ITR),430 .def = DEFAULT_ITR,431 .arg = { .r = { .min = MIN_ITR,432 .max = MAX_ITR }}433 };434 435 if (num_InterruptThrottleRate > bd) {436 adapter->itr = InterruptThrottleRate[bd];437 switch (adapter->itr) {438 case 0:439 e_dev_info("%s turned off\n", opt.name);440 break;441 case 1:442 e_dev_info("%s set to dynamic mode\n",443 opt.name);444 adapter->itr_setting = adapter->itr;445 adapter->itr = 20000;446 break;447 case 3:448 e_dev_info("%s set to dynamic conservative "449 "mode\n", opt.name);450 adapter->itr_setting = adapter->itr;451 adapter->itr = 20000;452 break;453 case 4:454 e_dev_info("%s set to simplified "455 "(2000-8000) ints mode\n", opt.name);456 adapter->itr_setting = adapter->itr;457 break;458 default:459 e1000_validate_option(&adapter->itr, &opt,460 adapter);461 /* save the setting, because the dynamic bits462 * change itr.463 * clear the lower two bits because they are464 * used as control465 */466 adapter->itr_setting = adapter->itr & ~3;467 break;468 }469 } else {470 adapter->itr_setting = opt.def;471 adapter->itr = 20000;472 }473 }474 { /* Smart Power Down */475 opt = (struct e1000_option) {476 .type = enable_option,477 .name = "PHY Smart Power Down",478 .err = "defaulting to Disabled",479 .def = OPTION_DISABLED480 };481 482 if (num_SmartPowerDownEnable > bd) {483 unsigned int spd = SmartPowerDownEnable[bd];484 e1000_validate_option(&spd, &opt, adapter);485 adapter->smart_power_down = spd;486 } else {487 adapter->smart_power_down = opt.def;488 }489 }490 491 switch (adapter->hw.media_type) {492 case e1000_media_type_fiber:493 case e1000_media_type_internal_serdes:494 e1000_check_fiber_options(adapter);495 break;496 case e1000_media_type_copper:497 e1000_check_copper_options(adapter);498 break;499 default:500 BUG();501 }502}503 504/**505 * e1000_check_fiber_options - Range Checking for Link Options, Fiber Version506 * @adapter: board private structure507 *508 * Handles speed and duplex options on fiber adapters509 **/510static void e1000_check_fiber_options(struct e1000_adapter *adapter)511{512 int bd = adapter->bd_number;513 if (num_Speed > bd) {514 e_dev_info("Speed not valid for fiber adapters, parameter "515 "ignored\n");516 }517 518 if (num_Duplex > bd) {519 e_dev_info("Duplex not valid for fiber adapters, parameter "520 "ignored\n");521 }522 523 if ((num_AutoNeg > bd) && (AutoNeg[bd] != 0x20)) {524 e_dev_info("AutoNeg other than 1000/Full is not valid for fiber"525 "adapters, parameter ignored\n");526 }527}528 529/**530 * e1000_check_copper_options - Range Checking for Link Options, Copper Version531 * @adapter: board private structure532 *533 * Handles speed and duplex options on copper adapters534 **/535static void e1000_check_copper_options(struct e1000_adapter *adapter)536{537 struct e1000_option opt;538 unsigned int speed, dplx, an;539 int bd = adapter->bd_number;540 541 { /* Speed */542 static const struct e1000_opt_list speed_list[] = {543 { 0, "" },544 { SPEED_10, "" },545 { SPEED_100, "" },546 { SPEED_1000, "" }};547 548 opt = (struct e1000_option) {549 .type = list_option,550 .name = "Speed",551 .err = "parameter ignored",552 .def = 0,553 .arg = { .l = { .nr = ARRAY_SIZE(speed_list),554 .p = speed_list }}555 };556 557 if (num_Speed > bd) {558 speed = Speed[bd];559 e1000_validate_option(&speed, &opt, adapter);560 } else {561 speed = opt.def;562 }563 }564 { /* Duplex */565 static const struct e1000_opt_list dplx_list[] = {566 { 0, "" },567 { HALF_DUPLEX, "" },568 { FULL_DUPLEX, "" }};569 570 opt = (struct e1000_option) {571 .type = list_option,572 .name = "Duplex",573 .err = "parameter ignored",574 .def = 0,575 .arg = { .l = { .nr = ARRAY_SIZE(dplx_list),576 .p = dplx_list }}577 };578 579 if (num_Duplex > bd) {580 dplx = Duplex[bd];581 e1000_validate_option(&dplx, &opt, adapter);582 } else {583 dplx = opt.def;584 }585 }586 587 if ((num_AutoNeg > bd) && (speed != 0 || dplx != 0)) {588 e_dev_info("AutoNeg specified along with Speed or Duplex, "589 "parameter ignored\n");590 adapter->hw.autoneg_advertised = AUTONEG_ADV_DEFAULT;591 } else { /* Autoneg */592 static const struct e1000_opt_list an_list[] =593 #define AA "AutoNeg advertising "594 {{ 0x01, AA "10/HD" },595 { 0x02, AA "10/FD" },596 { 0x03, AA "10/FD, 10/HD" },597 { 0x04, AA "100/HD" },598 { 0x05, AA "100/HD, 10/HD" },599 { 0x06, AA "100/HD, 10/FD" },600 { 0x07, AA "100/HD, 10/FD, 10/HD" },601 { 0x08, AA "100/FD" },602 { 0x09, AA "100/FD, 10/HD" },603 { 0x0a, AA "100/FD, 10/FD" },604 { 0x0b, AA "100/FD, 10/FD, 10/HD" },605 { 0x0c, AA "100/FD, 100/HD" },606 { 0x0d, AA "100/FD, 100/HD, 10/HD" },607 { 0x0e, AA "100/FD, 100/HD, 10/FD" },608 { 0x0f, AA "100/FD, 100/HD, 10/FD, 10/HD" },609 { 0x20, AA "1000/FD" },610 { 0x21, AA "1000/FD, 10/HD" },611 { 0x22, AA "1000/FD, 10/FD" },612 { 0x23, AA "1000/FD, 10/FD, 10/HD" },613 { 0x24, AA "1000/FD, 100/HD" },614 { 0x25, AA "1000/FD, 100/HD, 10/HD" },615 { 0x26, AA "1000/FD, 100/HD, 10/FD" },616 { 0x27, AA "1000/FD, 100/HD, 10/FD, 10/HD" },617 { 0x28, AA "1000/FD, 100/FD" },618 { 0x29, AA "1000/FD, 100/FD, 10/HD" },619 { 0x2a, AA "1000/FD, 100/FD, 10/FD" },620 { 0x2b, AA "1000/FD, 100/FD, 10/FD, 10/HD" },621 { 0x2c, AA "1000/FD, 100/FD, 100/HD" },622 { 0x2d, AA "1000/FD, 100/FD, 100/HD, 10/HD" },623 { 0x2e, AA "1000/FD, 100/FD, 100/HD, 10/FD" },624 { 0x2f, AA "1000/FD, 100/FD, 100/HD, 10/FD, 10/HD" }};625 626 opt = (struct e1000_option) {627 .type = list_option,628 .name = "AutoNeg",629 .err = "parameter ignored",630 .def = AUTONEG_ADV_DEFAULT,631 .arg = { .l = { .nr = ARRAY_SIZE(an_list),632 .p = an_list }}633 };634 635 if (num_AutoNeg > bd) {636 an = AutoNeg[bd];637 e1000_validate_option(&an, &opt, adapter);638 } else {639 an = opt.def;640 }641 adapter->hw.autoneg_advertised = an;642 }643 644 switch (speed + dplx) {645 case 0:646 adapter->hw.autoneg = adapter->fc_autoneg = 1;647 if ((num_Speed > bd) && (speed != 0 || dplx != 0))648 e_dev_info("Speed and duplex autonegotiation "649 "enabled\n");650 break;651 case HALF_DUPLEX:652 e_dev_info("Half Duplex specified without Speed\n");653 e_dev_info("Using Autonegotiation at Half Duplex only\n");654 adapter->hw.autoneg = adapter->fc_autoneg = 1;655 adapter->hw.autoneg_advertised = ADVERTISE_10_HALF |656 ADVERTISE_100_HALF;657 break;658 case FULL_DUPLEX:659 e_dev_info("Full Duplex specified without Speed\n");660 e_dev_info("Using Autonegotiation at Full Duplex only\n");661 adapter->hw.autoneg = adapter->fc_autoneg = 1;662 adapter->hw.autoneg_advertised = ADVERTISE_10_FULL |663 ADVERTISE_100_FULL |664 ADVERTISE_1000_FULL;665 break;666 case SPEED_10:667 e_dev_info("10 Mbps Speed specified without Duplex\n");668 e_dev_info("Using Autonegotiation at 10 Mbps only\n");669 adapter->hw.autoneg = adapter->fc_autoneg = 1;670 adapter->hw.autoneg_advertised = ADVERTISE_10_HALF |671 ADVERTISE_10_FULL;672 break;673 case SPEED_10 + HALF_DUPLEX:674 e_dev_info("Forcing to 10 Mbps Half Duplex\n");675 adapter->hw.autoneg = adapter->fc_autoneg = 0;676 adapter->hw.forced_speed_duplex = e1000_10_half;677 adapter->hw.autoneg_advertised = 0;678 break;679 case SPEED_10 + FULL_DUPLEX:680 e_dev_info("Forcing to 10 Mbps Full Duplex\n");681 adapter->hw.autoneg = adapter->fc_autoneg = 0;682 adapter->hw.forced_speed_duplex = e1000_10_full;683 adapter->hw.autoneg_advertised = 0;684 break;685 case SPEED_100:686 e_dev_info("100 Mbps Speed specified without Duplex\n");687 e_dev_info("Using Autonegotiation at 100 Mbps only\n");688 adapter->hw.autoneg = adapter->fc_autoneg = 1;689 adapter->hw.autoneg_advertised = ADVERTISE_100_HALF |690 ADVERTISE_100_FULL;691 break;692 case SPEED_100 + HALF_DUPLEX:693 e_dev_info("Forcing to 100 Mbps Half Duplex\n");694 adapter->hw.autoneg = adapter->fc_autoneg = 0;695 adapter->hw.forced_speed_duplex = e1000_100_half;696 adapter->hw.autoneg_advertised = 0;697 break;698 case SPEED_100 + FULL_DUPLEX:699 e_dev_info("Forcing to 100 Mbps Full Duplex\n");700 adapter->hw.autoneg = adapter->fc_autoneg = 0;701 adapter->hw.forced_speed_duplex = e1000_100_full;702 adapter->hw.autoneg_advertised = 0;703 break;704 case SPEED_1000:705 e_dev_info("1000 Mbps Speed specified without Duplex\n");706 goto full_duplex_only;707 case SPEED_1000 + HALF_DUPLEX:708 e_dev_info("Half Duplex is not supported at 1000 Mbps\n");709 fallthrough;710 case SPEED_1000 + FULL_DUPLEX:711full_duplex_only:712 e_dev_info("Using Autonegotiation at 1000 Mbps Full Duplex "713 "only\n");714 adapter->hw.autoneg = adapter->fc_autoneg = 1;715 adapter->hw.autoneg_advertised = ADVERTISE_1000_FULL;716 break;717 default:718 BUG();719 }720 721 /* Speed, AutoNeg and MDI/MDI-X must all play nice */722 if (e1000_validate_mdi_setting(&(adapter->hw)) < 0) {723 e_dev_info("Speed, AutoNeg and MDI-X specs are incompatible. "724 "Setting MDI-X to a compatible value.\n");725 }726}727 728