drivers/net/ethernet/intel/e1000/e1000_param.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /* 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 the
   7  * maximum number of ports that the driver can manage.
   8  */
   9
  10 #define E1000_MAX_NIC 32
  11
  12 #define OPTION_UNSET   -1
  13 #define OPTION_DISABLED 0
  14 #define OPTION_ENABLED  1
  15
  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 code
  18  * 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 Count
  29  *
  30  * Valid Range: 80-256 for 82542 and 82543 gigabit ethernet controllers
  31  * Valid Range: 80-4096 for 82544 and newer
  32  *
  33  * Default Value: 256
  34  */
  35 E1000_PARAM(TxDescriptors, "Number of transmit descriptors");
  36
  37 /* Receive Descriptor Count
  38  *
  39  * Valid Range: 80-256 for 82542 and 82543 gigabit ethernet controllers
  40  * Valid Range: 80-4096 for 82544 and newer
  41  *
  42  * Default Value: 256
  43  */
  44 E1000_PARAM(RxDescriptors, "Number of receive descriptors");
  45
  46 /* User Specified Speed Override
  47  *
  48  * Valid Range: 0, 10, 100, 1000
  49  *  - 0    - auto-negotiate at all supported speeds
  50  *  - 10   - only link at 10 Mbps
  51  *  - 100  - only link at 100 Mbps
  52  *  - 1000 - only link at 1000 Mbps
  53  *
  54  * Default Value: 0
  55  */
  56 E1000_PARAM(Speed, "Speed setting");
  57
  58 /* User Specified Duplex Override
  59  *
  60  * Valid Range: 0-2
  61  *  - 0 - auto-negotiate for duplex
  62  *  - 1 - only link at half duplex
  63  *  - 2 - only link at full duplex
  64  *
  65  * Default Value: 0
  66  */
  67 E1000_PARAM(Duplex, "Duplex setting");
  68
  69 /* Auto-negotiation Advertisement Override
  70  *
  71  * Valid Range: 0x01-0x0F, 0x20-0x2F (copper); 0x20 (fiber)
  72  *
  73  * The AutoNeg value is a bit mask describing which speed and duplex
  74  * combinations should be advertised during auto-negotiation.
  75  * The supported speed and duplex modes are listed below
  76  *
  77  * Bit           7     6     5      4      3     2     1      0
  78  * Speed (Mbps)  N/A   N/A   1000   N/A    100   100   10     10
  79  * Duplex                    Full          Full  Half  Full   Half
  80  *
  81  * Default Value: 0x2F (copper); 0x20 (fiber)
  82  */
  83 E1000_PARAM(AutoNeg, "Advertised auto-negotiation setting");
  84 #define AUTONEG_ADV_DEFAULT  0x2F
  85 #define AUTONEG_ADV_MASK     0x2F
  86
  87 /* User Specified Flow Control Override
  88  *
  89  * Valid Range: 0-3
  90  *  - 0 - No Flow Control
  91  *  - 1 - Rx only, respond to PAUSE frames but do not generate them
  92  *  - 2 - Tx only, generate PAUSE frames but ignore them on receive
  93  *  - 3 - Full Flow Control Support
  94  *
  95  * Default Value: Read flow control settings from the EEPROM
  96  */
  97 E1000_PARAM(FlowControl, "Flow Control setting");
  98 #define FLOW_CONTROL_DEFAULT FLOW_CONTROL_FULL
  99
 100 /* XsumRX - Receive Checksum Offload Enable/Disable
 101  *
 102  * Valid Range: 0, 1
 103  *  - 0 - disables all checksum offload
 104  *  - 1 - enables receive IP/TCP/UDP checksum offload
 105  *        on 82543 and newer -based NICs
 106  *
 107  * Default Value: 1
 108  */
 109 E1000_PARAM(XsumRX, "Disable or enable Receive Checksum offload");
 110
 111 /* Transmit Interrupt Delay in units of 1.024 microseconds
 112  *  Tx interrupt delay needs to typically be set to something non zero
 113  *
 114  * Valid Range: 0-65535
 115  */
 116 E1000_PARAM(TxIntDelay, "Transmit Interrupt Delay");
 117 #define DEFAULT_TIDV                   8
 118 #define MAX_TXDELAY               0xFFFF
 119 #define MIN_TXDELAY                    0
 120
 121 /* Transmit Absolute Interrupt Delay in units of 1.024 microseconds
 122  *
 123  * Valid Range: 0-65535
 124  */
 125 E1000_PARAM(TxAbsIntDelay, "Transmit Absolute Interrupt Delay");
 126 #define DEFAULT_TADV                  32
 127 #define MAX_TXABSDELAY            0xFFFF
 128 #define MIN_TXABSDELAY                 0
 129
 130 /* Receive Interrupt Delay in units of 1.024 microseconds
 131  *   hardware will likely hang if you set this to anything but zero.
 132  *
 133  * Valid Range: 0-65535
 134  */
 135 E1000_PARAM(RxIntDelay, "Receive Interrupt Delay");
 136 #define DEFAULT_RDTR                   0
 137 #define MAX_RXDELAY               0xFFFF
 138 #define MIN_RXDELAY                    0
 139
 140 /* Receive Absolute Interrupt Delay in units of 1.024 microseconds
 141  *
 142  * Valid Range: 0-65535
 143  */
 144 E1000_PARAM(RxAbsIntDelay, "Receive Absolute Interrupt Delay");
 145 #define DEFAULT_RADV                   8
 146 #define MAX_RXABSDELAY            0xFFFF
 147 #define MIN_RXABSDELAY                 0
 148
 149 /* Interrupt Throttle Rate (interrupts/sec)
 150  *
 151  * Valid Range: 100-100000 (0=off, 1=dynamic, 3=dynamic conservative)
 152  */
 153 E1000_PARAM(InterruptThrottleRate, "Interrupt Throttling Rate");
 154 #define DEFAULT_ITR                    3
 155 #define MAX_ITR                   100000
 156 #define MIN_ITR                      100
 157
 158 /* Enable Smart Power Down of the PHY
 159  *
 160  * Valid Range: 0, 1
 161  *
 162  * Default Value: 0 (disabled)
 163  */
 164 E1000_PARAM(SmartPowerDownEnable, "Enable PHY smart power down");
 165
 166 struct e1000_option {
 167         enum { enable_option, range_option, list_option } type;
 168         const char *name;
 169         const char *err;
 170         int def;
 171         union {
 172                 struct { /* range_option info */
 173                         int min;
 174                         int max;
 175                 } r;
 176                 struct { /* list_option info */
 177                         int nr;
 178                         const struct e1000_opt_list { int i; char *str; } *p;
 179                 } l;
 180         } arg;
 181 };
 182
 183 static int e1000_validate_option(unsigned int *value,
 184                                  const struct e1000_option *opt,
 185                                  struct e1000_adapter *adapter)
 186 {
 187         if (*value == OPTION_UNSET) {
 188                 *value = opt->def;
 189                 return 0;
 190         }
 191
 192         switch (opt->type) {
 193         case enable_option:
 194                 switch (*value) {
 195                 case OPTION_ENABLED:
 196                         e_dev_info("%s Enabled\n", opt->name);
 197                         return 0;
 198                 case OPTION_DISABLED:
 199                         e_dev_info("%s Disabled\n", opt->name);
 200                         return 0;
 201                 }
 202                 break;
 203         case range_option:
 204                 if (*value >= opt->arg.r.min && *value <= opt->arg.r.max) {
 205                         e_dev_info("%s set to %i\n", opt->name, *value);
 206                         return 0;
 207                 }
 208                 break;
 209         case list_option: {
 210                 int i;
 211                 const struct e1000_opt_list *ent;
 212
 213                 for (i = 0; i < opt->arg.l.nr; i++) {
 214                         ent = &opt->arg.l.p[i];
 215                         if (*value == ent->i) {
 216                                 if (ent->str[0] != '\0')
 217                                         e_dev_info("%s\n", ent->str);
 218                                 return 0;
 219                         }
 220                 }
 221         }
 222                 break;
 223         default:
 224                 BUG();
 225         }
 226
 227         e_dev_info("Invalid %s value specified (%i) %s\n",
 228                opt->name, *value, opt->err);
 229         *value = opt->def;
 230         return -1;
 231 }
 232
 233 static void e1000_check_fiber_options(struct e1000_adapter *adapter);
 234 static void e1000_check_copper_options(struct e1000_adapter *adapter);
 235
 236 /**
 237  * e1000_check_options - Range Checking for Command Line Parameters
 238  * @adapter: board private structure
 239  *
 240  * This routine checks all command line parameters for valid user
 241  * input.  If an invalid value is given, or if no user specified
 242  * value exists, a default value is used.  The final value is stored
 243  * in a variable in the adapter structure.
 244  **/
 245 void e1000_check_options(struct e1000_adapter *adapter)
 246 {
 247         struct e1000_option opt;
 248         int bd = adapter->bd_number;
 249
 250         if (bd >= E1000_MAX_NIC) {
 251                 e_dev_warn("Warning: no configuration for board #%i "
 252                            "using defaults for all values\n", bd);
 253         }
 254
 255         { /* Transmit Descriptor Count */
 256                 struct e1000_tx_ring *tx_ring = adapter->tx_ring;
 257                 int i;
 258                 e1000_mac_type mac_type = adapter->hw.mac_type;
 259
 260                 opt = (struct e1000_option) {
 261                         .type = range_option,
 262                         .name = "Transmit Descriptors",
 263                         .err  = "using default of "
 264                                 __MODULE_STRING(E1000_DEFAULT_TXD),
 265                         .def  = E1000_DEFAULT_TXD,
 266                         .arg  = { .r = {
 267                                 .min = E1000_MIN_TXD,
 268                                 .max = mac_type < e1000_82544 ? E1000_MAX_TXD : E1000_MAX_82544_TXD
 269                                 }}
 270                 };
 271
 272                 if (num_TxDescriptors > bd) {
 273                         tx_ring->count = TxDescriptors[bd];
 274                         e1000_validate_option(&tx_ring->count, &opt, adapter);
 275                         tx_ring->count = ALIGN(tx_ring->count,
 276                                                 REQ_TX_DESCRIPTOR_MULTIPLE);
 277                 } else {
 278                         tx_ring->count = opt.def;
 279                 }
 280                 for (i = 0; i < adapter->num_tx_queues; i++)
 281                         tx_ring[i].count = tx_ring->count;
 282         }
 283         { /* Receive Descriptor Count */
 284                 struct e1000_rx_ring *rx_ring = adapter->rx_ring;
 285                 int i;
 286                 e1000_mac_type mac_type = adapter->hw.mac_type;
 287
 288                 opt = (struct e1000_option) {
 289                         .type = range_option,
 290                         .name = "Receive Descriptors",
 291                         .err  = "using default of "
 292                                 __MODULE_STRING(E1000_DEFAULT_RXD),
 293                         .def  = E1000_DEFAULT_RXD,
 294                         .arg  = { .r = {
 295                                 .min = E1000_MIN_RXD,
 296                                 .max = mac_type < e1000_82544 ? E1000_MAX_RXD :
 297                                        E1000_MAX_82544_RXD
 298                         }}
 299                 };
 300
 301                 if (num_RxDescriptors > bd) {
 302                         rx_ring->count = RxDescriptors[bd];
 303                         e1000_validate_option(&rx_ring->count, &opt, adapter);
 304                         rx_ring->count = ALIGN(rx_ring->count,
 305                                                 REQ_RX_DESCRIPTOR_MULTIPLE);
 306                 } else {
 307                         rx_ring->count = opt.def;
 308                 }
 309                 for (i = 0; i < adapter->num_rx_queues; i++)
 310                         rx_ring[i].count = rx_ring->count;
 311         }
 312         { /* Checksum Offload Enable/Disable */
 313                 opt = (struct e1000_option) {
 314                         .type = enable_option,
 315                         .name = "Checksum Offload",
 316                         .err  = "defaulting to Enabled",
 317                         .def  = OPTION_ENABLED
 318                 };
 319
 320                 if (num_XsumRX > bd) {
 321                         unsigned int rx_csum = XsumRX[bd];
 322                         e1000_validate_option(&rx_csum, &opt, adapter);
 323                         adapter->rx_csum = rx_csum;
 324                 } else {
 325                         adapter->rx_csum = opt.def;
 326                 }
 327         }
 328         { /* Flow Control */
 329
 330                 static const struct e1000_opt_list fc_list[] = {
 331                        { E1000_FC_NONE, "Flow Control Disabled" },
 332                        { E1000_FC_RX_PAUSE, "Flow Control Receive Only" },
 333                        { E1000_FC_TX_PAUSE, "Flow Control Transmit Only" },
 334                        { E1000_FC_FULL, "Flow Control Enabled" },
 335                        { E1000_FC_DEFAULT, "Flow Control Hardware Default" }
 336                 };
 337
 338                 opt = (struct e1000_option) {
 339                         .type = list_option,
 340                         .name = "Flow Control",
 341                         .err  = "reading default settings from EEPROM",
 342                         .def  = E1000_FC_DEFAULT,
 343                         .arg  = { .l = { .nr = ARRAY_SIZE(fc_list),
 344                                          .p = fc_list }}
 345                 };
 346
 347                 if (num_FlowControl > bd) {
 348                         unsigned int fc = FlowControl[bd];
 349                         e1000_validate_option(&fc, &opt, adapter);
 350                         adapter->hw.fc = adapter->hw.original_fc = fc;
 351                 } else {
 352                         adapter->hw.fc = adapter->hw.original_fc = opt.def;
 353                 }
 354         }
 355         { /* Transmit Interrupt Delay */
 356                 opt = (struct e1000_option) {
 357                         .type = range_option,
 358                         .name = "Transmit Interrupt Delay",
 359                         .err  = "using default of " __MODULE_STRING(DEFAULT_TIDV),
 360                         .def  = DEFAULT_TIDV,
 361                         .arg  = { .r = { .min = MIN_TXDELAY,
 362                                          .max = MAX_TXDELAY }}
 363                 };
 364
 365                 if (num_TxIntDelay > bd) {
 366                         adapter->tx_int_delay = TxIntDelay[bd];
 367                         e1000_validate_option(&adapter->tx_int_delay, &opt,
 368                                               adapter);
 369                 } else {
 370                         adapter->tx_int_delay = opt.def;
 371                 }
 372         }
 373         { /* Transmit Absolute Interrupt Delay */
 374                 opt = (struct e1000_option) {
 375                         .type = range_option,
 376                         .name = "Transmit Absolute Interrupt Delay",
 377                         .err  = "using default of " __MODULE_STRING(DEFAULT_TADV),
 378                         .def  = DEFAULT_TADV,
 379                         .arg  = { .r = { .min = MIN_TXABSDELAY,
 380                                          .max = MAX_TXABSDELAY }}
 381                 };
 382
 383                 if (num_TxAbsIntDelay > bd) {
 384                         adapter->tx_abs_int_delay = TxAbsIntDelay[bd];
 385                         e1000_validate_option(&adapter->tx_abs_int_delay, &opt,
 386                                               adapter);
 387                 } else {
 388                         adapter->tx_abs_int_delay = opt.def;
 389                 }
 390         }
 391         { /* Receive Interrupt Delay */
 392                 opt = (struct e1000_option) {
 393                         .type = range_option,
 394                         .name = "Receive Interrupt Delay",
 395                         .err  = "using default of " __MODULE_STRING(DEFAULT_RDTR),
 396                         .def  = DEFAULT_RDTR,
 397                         .arg  = { .r = { .min = MIN_RXDELAY,
 398                                          .max = MAX_RXDELAY }}
 399                 };
 400
 401                 if (num_RxIntDelay > bd) {
 402                         adapter->rx_int_delay = RxIntDelay[bd];
 403                         e1000_validate_option(&adapter->rx_int_delay, &opt,
 404                                               adapter);
 405                 } else {
 406                         adapter->rx_int_delay = opt.def;
 407                 }
 408         }
 409         { /* Receive Absolute Interrupt Delay */
 410                 opt = (struct e1000_option) {
 411                         .type = range_option,
 412                         .name = "Receive Absolute Interrupt Delay",
 413                         .err  = "using default of " __MODULE_STRING(DEFAULT_RADV),
 414                         .def  = DEFAULT_RADV,
 415                         .arg  = { .r = { .min = MIN_RXABSDELAY,
 416                                          .max = MAX_RXABSDELAY }}
 417                 };
 418
 419                 if (num_RxAbsIntDelay > bd) {
 420                         adapter->rx_abs_int_delay = RxAbsIntDelay[bd];
 421                         e1000_validate_option(&adapter->rx_abs_int_delay, &opt,
 422                                               adapter);
 423                 } else {
 424                         adapter->rx_abs_int_delay = opt.def;
 425                 }
 426         }
 427         { /* Interrupt Throttling Rate */
 428                 opt = (struct e1000_option) {
 429                         .type = range_option,
 430                         .name = "Interrupt Throttling Rate (ints/sec)",
 431                         .err  = "using default of " __MODULE_STRING(DEFAULT_ITR),
 432                         .def  = DEFAULT_ITR,
 433                         .arg  = { .r = { .min = MIN_ITR,
 434                                          .max = MAX_ITR }}
 435                 };
 436
 437                 if (num_InterruptThrottleRate > bd) {
 438                         adapter->itr = InterruptThrottleRate[bd];
 439                         switch (adapter->itr) {
 440                         case 0:
 441                                 e_dev_info("%s turned off\n", opt.name);
 442                                 break;
 443                         case 1:
 444                                 e_dev_info("%s set to dynamic mode\n",
 445                                            opt.name);
 446                                 adapter->itr_setting = adapter->itr;
 447                                 adapter->itr = 20000;
 448                                 break;
 449                         case 3:
 450                                 e_dev_info("%s set to dynamic conservative "
 451                                            "mode\n", opt.name);
 452                                 adapter->itr_setting = adapter->itr;
 453                                 adapter->itr = 20000;
 454                                 break;
 455                         case 4:
 456                                 e_dev_info("%s set to simplified "
 457                                            "(2000-8000) ints mode\n", opt.name);
 458                                 adapter->itr_setting = adapter->itr;
 459                                 break;
 460                         default:
 461                                 e1000_validate_option(&adapter->itr, &opt,
 462                                                       adapter);
 463                                 /* save the setting, because the dynamic bits
 464                                  * change itr.
 465                                  * clear the lower two bits because they are
 466                                  * used as control
 467                                  */
 468                                 adapter->itr_setting = adapter->itr & ~3;
 469                                 break;
 470                         }
 471                 } else {
 472                         adapter->itr_setting = opt.def;
 473                         adapter->itr = 20000;
 474                 }
 475         }
 476         { /* Smart Power Down */
 477                 opt = (struct e1000_option) {
 478                         .type = enable_option,
 479                         .name = "PHY Smart Power Down",
 480                         .err  = "defaulting to Disabled",
 481                         .def  = OPTION_DISABLED
 482                 };
 483
 484                 if (num_SmartPowerDownEnable > bd) {
 485                         unsigned int spd = SmartPowerDownEnable[bd];
 486                         e1000_validate_option(&spd, &opt, adapter);
 487                         adapter->smart_power_down = spd;
 488                 } else {
 489                         adapter->smart_power_down = opt.def;
 490                 }
 491         }
 492
 493         switch (adapter->hw.media_type) {
 494         case e1000_media_type_fiber:
 495         case e1000_media_type_internal_serdes:
 496                 e1000_check_fiber_options(adapter);
 497                 break;
 498         case e1000_media_type_copper:
 499                 e1000_check_copper_options(adapter);
 500                 break;
 501         default:
 502                 BUG();
 503         }
 504 }
 505
 506 /**
 507  * e1000_check_fiber_options - Range Checking for Link Options, Fiber Version
 508  * @adapter: board private structure
 509  *
 510  * Handles speed and duplex options on fiber adapters
 511  **/
 512 static void e1000_check_fiber_options(struct e1000_adapter *adapter)
 513 {
 514         int bd = adapter->bd_number;
 515         if (num_Speed > bd) {
 516                 e_dev_info("Speed not valid for fiber adapters, parameter "
 517                            "ignored\n");
 518         }
 519
 520         if (num_Duplex > bd) {
 521                 e_dev_info("Duplex not valid for fiber adapters, parameter "
 522                            "ignored\n");
 523         }
 524
 525         if ((num_AutoNeg > bd) && (AutoNeg[bd] != 0x20)) {
 526                 e_dev_info("AutoNeg other than 1000/Full is not valid for fiber"
 527                            "adapters, parameter ignored\n");
 528         }
 529 }
 530
 531 /**
 532  * e1000_check_copper_options - Range Checking for Link Options, Copper Version
 533  * @adapter: board private structure
 534  *
 535  * Handles speed and duplex options on copper adapters
 536  **/
 537 static void e1000_check_copper_options(struct e1000_adapter *adapter)
 538 {
 539         struct e1000_option opt;
 540         unsigned int speed, dplx, an;
 541         int bd = adapter->bd_number;
 542
 543         { /* Speed */
 544                 static const struct e1000_opt_list speed_list[] = {
 545                         {          0, "" },
 546                         {   SPEED_10, "" },
 547                         {  SPEED_100, "" },
 548                         { SPEED_1000, "" }};
 549
 550                 opt = (struct e1000_option) {
 551                         .type = list_option,
 552                         .name = "Speed",
 553                         .err  = "parameter ignored",
 554                         .def  = 0,
 555                         .arg  = { .l = { .nr = ARRAY_SIZE(speed_list),
 556                                          .p = speed_list }}
 557                 };
 558
 559                 if (num_Speed > bd) {
 560                         speed = Speed[bd];
 561                         e1000_validate_option(&speed, &opt, adapter);
 562                 } else {
 563                         speed = opt.def;
 564                 }
 565         }
 566         { /* Duplex */
 567                 static const struct e1000_opt_list dplx_list[] = {
 568                         {           0, "" },
 569                         { HALF_DUPLEX, "" },
 570                         { FULL_DUPLEX, "" }};
 571
 572                 opt = (struct e1000_option) {
 573                         .type = list_option,
 574                         .name = "Duplex",
 575                         .err  = "parameter ignored",
 576                         .def  = 0,
 577                         .arg  = { .l = { .nr = ARRAY_SIZE(dplx_list),
 578                                          .p = dplx_list }}
 579                 };
 580
 581                 if (num_Duplex > bd) {
 582                         dplx = Duplex[bd];
 583                         e1000_validate_option(&dplx, &opt, adapter);
 584                 } else {
 585                         dplx = opt.def;
 586                 }
 587         }
 588
 589         if ((num_AutoNeg > bd) && (speed != 0 || dplx != 0)) {
 590                 e_dev_info("AutoNeg specified along with Speed or Duplex, "
 591                            "parameter ignored\n");
 592                 adapter->hw.autoneg_advertised = AUTONEG_ADV_DEFAULT;
 593         } else { /* Autoneg */
 594                 static const struct e1000_opt_list an_list[] =
 595                         #define AA "AutoNeg advertising "
 596                         {{ 0x01, AA "10/HD" },
 597                          { 0x02, AA "10/FD" },
 598                          { 0x03, AA "10/FD, 10/HD" },
 599                          { 0x04, AA "100/HD" },
 600                          { 0x05, AA "100/HD, 10/HD" },
 601                          { 0x06, AA "100/HD, 10/FD" },
 602                          { 0x07, AA "100/HD, 10/FD, 10/HD" },
 603                          { 0x08, AA "100/FD" },
 604                          { 0x09, AA "100/FD, 10/HD" },
 605                          { 0x0a, AA "100/FD, 10/FD" },
 606                          { 0x0b, AA "100/FD, 10/FD, 10/HD" },
 607                          { 0x0c, AA "100/FD, 100/HD" },
 608                          { 0x0d, AA "100/FD, 100/HD, 10/HD" },
 609                          { 0x0e, AA "100/FD, 100/HD, 10/FD" },
 610                          { 0x0f, AA "100/FD, 100/HD, 10/FD, 10/HD" },
 611                          { 0x20, AA "1000/FD" },
 612                          { 0x21, AA "1000/FD, 10/HD" },
 613                          { 0x22, AA "1000/FD, 10/FD" },
 614                          { 0x23, AA "1000/FD, 10/FD, 10/HD" },
 615                          { 0x24, AA "1000/FD, 100/HD" },
 616                          { 0x25, AA "1000/FD, 100/HD, 10/HD" },
 617                          { 0x26, AA "1000/FD, 100/HD, 10/FD" },
 618                          { 0x27, AA "1000/FD, 100/HD, 10/FD, 10/HD" },
 619                          { 0x28, AA "1000/FD, 100/FD" },
 620                          { 0x29, AA "1000/FD, 100/FD, 10/HD" },
 621                          { 0x2a, AA "1000/FD, 100/FD, 10/FD" },
 622                          { 0x2b, AA "1000/FD, 100/FD, 10/FD, 10/HD" },
 623                          { 0x2c, AA "1000/FD, 100/FD, 100/HD" },
 624                          { 0x2d, AA "1000/FD, 100/FD, 100/HD, 10/HD" },
 625                          { 0x2e, AA "1000/FD, 100/FD, 100/HD, 10/FD" },
 626                          { 0x2f, AA "1000/FD, 100/FD, 100/HD, 10/FD, 10/HD" }};
 627
 628                 opt = (struct e1000_option) {
 629                         .type = list_option,
 630                         .name = "AutoNeg",
 631                         .err  = "parameter ignored",
 632                         .def  = AUTONEG_ADV_DEFAULT,
 633                         .arg  = { .l = { .nr = ARRAY_SIZE(an_list),
 634                                          .p = an_list }}
 635                 };
 636
 637                 if (num_AutoNeg > bd) {
 638                         an = AutoNeg[bd];
 639                         e1000_validate_option(&an, &opt, adapter);
 640                 } else {
 641                         an = opt.def;
 642                 }
 643                 adapter->hw.autoneg_advertised = an;
 644         }
 645
 646         switch (speed + dplx) {
 647         case 0:
 648                 adapter->hw.autoneg = adapter->fc_autoneg = 1;
 649                 if ((num_Speed > bd) && (speed != 0 || dplx != 0))
 650                         e_dev_info("Speed and duplex autonegotiation "
 651                                    "enabled\n");
 652                 break;
 653         case HALF_DUPLEX:
 654                 e_dev_info("Half Duplex specified without Speed\n");
 655                 e_dev_info("Using Autonegotiation at Half Duplex only\n");
 656                 adapter->hw.autoneg = adapter->fc_autoneg = 1;
 657                 adapter->hw.autoneg_advertised = ADVERTISE_10_HALF |
 658                                                  ADVERTISE_100_HALF;
 659                 break;
 660         case FULL_DUPLEX:
 661                 e_dev_info("Full Duplex specified without Speed\n");
 662                 e_dev_info("Using Autonegotiation at Full Duplex only\n");
 663                 adapter->hw.autoneg = adapter->fc_autoneg = 1;
 664                 adapter->hw.autoneg_advertised = ADVERTISE_10_FULL |
 665                                                  ADVERTISE_100_FULL |
 666                                                  ADVERTISE_1000_FULL;
 667                 break;
 668         case SPEED_10:
 669                 e_dev_info("10 Mbps Speed specified without Duplex\n");
 670                 e_dev_info("Using Autonegotiation at 10 Mbps only\n");
 671                 adapter->hw.autoneg = adapter->fc_autoneg = 1;
 672                 adapter->hw.autoneg_advertised = ADVERTISE_10_HALF |
 673                                                  ADVERTISE_10_FULL;
 674                 break;
 675         case SPEED_10 + HALF_DUPLEX:
 676                 e_dev_info("Forcing to 10 Mbps Half Duplex\n");
 677                 adapter->hw.autoneg = adapter->fc_autoneg = 0;
 678                 adapter->hw.forced_speed_duplex = e1000_10_half;
 679                 adapter->hw.autoneg_advertised = 0;
 680                 break;
 681         case SPEED_10 + FULL_DUPLEX:
 682                 e_dev_info("Forcing to 10 Mbps Full Duplex\n");
 683                 adapter->hw.autoneg = adapter->fc_autoneg = 0;
 684                 adapter->hw.forced_speed_duplex = e1000_10_full;
 685                 adapter->hw.autoneg_advertised = 0;
 686                 break;
 687         case SPEED_100:
 688                 e_dev_info("100 Mbps Speed specified without Duplex\n");
 689                 e_dev_info("Using Autonegotiation at 100 Mbps only\n");
 690                 adapter->hw.autoneg = adapter->fc_autoneg = 1;
 691                 adapter->hw.autoneg_advertised = ADVERTISE_100_HALF |
 692                                                  ADVERTISE_100_FULL;
 693                 break;
 694         case SPEED_100 + HALF_DUPLEX:
 695                 e_dev_info("Forcing to 100 Mbps Half Duplex\n");
 696                 adapter->hw.autoneg = adapter->fc_autoneg = 0;
 697                 adapter->hw.forced_speed_duplex = e1000_100_half;
 698                 adapter->hw.autoneg_advertised = 0;
 699                 break;
 700         case SPEED_100 + FULL_DUPLEX:
 701                 e_dev_info("Forcing to 100 Mbps Full Duplex\n");
 702                 adapter->hw.autoneg = adapter->fc_autoneg = 0;
 703                 adapter->hw.forced_speed_duplex = e1000_100_full;
 704                 adapter->hw.autoneg_advertised = 0;
 705                 break;
 706         case SPEED_1000:
 707                 e_dev_info("1000 Mbps Speed specified without Duplex\n");
 708                 goto full_duplex_only;
 709         case SPEED_1000 + HALF_DUPLEX:
 710                 e_dev_info("Half Duplex is not supported at 1000 Mbps\n");
 711                 /* fall through */
 712         case SPEED_1000 + FULL_DUPLEX:
 713 full_duplex_only:
 714                 e_dev_info("Using Autonegotiation at 1000 Mbps Full Duplex "
 715                            "only\n");
 716                 adapter->hw.autoneg = adapter->fc_autoneg = 1;
 717                 adapter->hw.autoneg_advertised = ADVERTISE_1000_FULL;
 718                 break;
 719         default:
 720                 BUG();
 721         }
 722
 723         /* Speed, AutoNeg and MDI/MDI-X must all play nice */
 724         if (e1000_validate_mdi_setting(&(adapter->hw)) < 0) {
 725                 e_dev_info("Speed, AutoNeg and MDI-X specs are incompatible. "
 726                            "Setting MDI-X to a compatible value.\n");
 727         }
 728 }
 729