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

   1 /*******************************************************************************
   2
   3   Intel PRO/1000 Linux driver
   4   Copyright(c) 1999 - 2006 Intel Corporation.
   5
   6   This program is free software; you can redistribute it and/or modify it
   7   under the terms and conditions of the GNU General Public License,
   8   version 2, as published by the Free Software Foundation.
   9
  10   This program is distributed in the hope it will be useful, but WITHOUT
  11   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  12   FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  13   more details.
  14
  15   You should have received a copy of the GNU General Public License along with
  16   this program; if not, write to the Free Software Foundation, Inc.,
  17   51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
  18
  19   The full GNU General Public License is included in this distribution in
  20   the file called "COPYING".
  21
  22   Contact Information:
  23   Linux NICS <linux.nics@intel.com>
  24   e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
  25   Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  26
  27 *******************************************************************************/
  28
  29 #include "e1000.h"
  30
  31 /* This is the only thing that needs to be changed to adjust the
  32  * maximum number of ports that the driver can manage.
  33  */
  34
  35 #define E1000_MAX_NIC 32
  36
  37 #define OPTION_UNSET   -1
  38 #define OPTION_DISABLED 0
  39 #define OPTION_ENABLED  1
  40
  41 /* All parameters are treated the same, as an integer array of values.
  42  * This macro just reduces the need to repeat the same declaration code
  43  * over and over (plus this helps to avoid typo bugs).
  44  */
  45
  46 #define E1000_PARAM_INIT { [0 ... E1000_MAX_NIC] = OPTION_UNSET }
  47 #define E1000_PARAM(X, desc) \
  48         static int X[E1000_MAX_NIC+1] = E1000_PARAM_INIT; \
  49         static unsigned int num_##X; \
  50         module_param_array_named(X, X, int, &num_##X, 0); \
  51         MODULE_PARM_DESC(X, desc);
  52
  53 /* Transmit Descriptor Count
  54  *
  55  * Valid Range: 80-256 for 82542 and 82543 gigabit ethernet controllers
  56  * Valid Range: 80-4096 for 82544 and newer
  57  *
  58  * Default Value: 256
  59  */
  60 E1000_PARAM(TxDescriptors, "Number of transmit descriptors");
  61
  62 /* Receive Descriptor Count
  63  *
  64  * Valid Range: 80-256 for 82542 and 82543 gigabit ethernet controllers
  65  * Valid Range: 80-4096 for 82544 and newer
  66  *
  67  * Default Value: 256
  68  */
  69 E1000_PARAM(RxDescriptors, "Number of receive descriptors");
  70
  71 /* User Specified Speed Override
  72  *
  73  * Valid Range: 0, 10, 100, 1000
  74  *  - 0    - auto-negotiate at all supported speeds
  75  *  - 10   - only link at 10 Mbps
  76  *  - 100  - only link at 100 Mbps
  77  *  - 1000 - only link at 1000 Mbps
  78  *
  79  * Default Value: 0
  80  */
  81 E1000_PARAM(Speed, "Speed setting");
  82
  83 /* User Specified Duplex Override
  84  *
  85  * Valid Range: 0-2
  86  *  - 0 - auto-negotiate for duplex
  87  *  - 1 - only link at half duplex
  88  *  - 2 - only link at full duplex
  89  *
  90  * Default Value: 0
  91  */
  92 E1000_PARAM(Duplex, "Duplex setting");
  93
  94 /* Auto-negotiation Advertisement Override
  95  *
  96  * Valid Range: 0x01-0x0F, 0x20-0x2F (copper); 0x20 (fiber)
  97  *
  98  * The AutoNeg value is a bit mask describing which speed and duplex
  99  * combinations should be advertised during auto-negotiation.
 100  * The supported speed and duplex modes are listed below
 101  *
 102  * Bit           7     6     5      4      3     2     1      0
 103  * Speed (Mbps)  N/A   N/A   1000   N/A    100   100   10     10
 104  * Duplex                    Full          Full  Half  Full   Half
 105  *
 106  * Default Value: 0x2F (copper); 0x20 (fiber)
 107  */
 108 E1000_PARAM(AutoNeg, "Advertised auto-negotiation setting");
 109 #define AUTONEG_ADV_DEFAULT  0x2F
 110 #define AUTONEG_ADV_MASK     0x2F
 111
 112 /* User Specified Flow Control Override
 113  *
 114  * Valid Range: 0-3
 115  *  - 0 - No Flow Control
 116  *  - 1 - Rx only, respond to PAUSE frames but do not generate them
 117  *  - 2 - Tx only, generate PAUSE frames but ignore them on receive
 118  *  - 3 - Full Flow Control Support
 119  *
 120  * Default Value: Read flow control settings from the EEPROM
 121  */
 122 E1000_PARAM(FlowControl, "Flow Control setting");
 123 #define FLOW_CONTROL_DEFAULT FLOW_CONTROL_FULL
 124
 125 /* XsumRX - Receive Checksum Offload Enable/Disable
 126  *
 127  * Valid Range: 0, 1
 128  *  - 0 - disables all checksum offload
 129  *  - 1 - enables receive IP/TCP/UDP checksum offload
 130  *        on 82543 and newer -based NICs
 131  *
 132  * Default Value: 1
 133  */
 134 E1000_PARAM(XsumRX, "Disable or enable Receive Checksum offload");
 135
 136 /* Transmit Interrupt Delay in units of 1.024 microseconds
 137  *  Tx interrupt delay needs to typically be set to something non zero
 138  *
 139  * Valid Range: 0-65535
 140  */
 141 E1000_PARAM(TxIntDelay, "Transmit Interrupt Delay");
 142 #define DEFAULT_TIDV                   8
 143 #define MAX_TXDELAY               0xFFFF
 144 #define MIN_TXDELAY                    0
 145
 146 /* Transmit Absolute Interrupt Delay in units of 1.024 microseconds
 147  *
 148  * Valid Range: 0-65535
 149  */
 150 E1000_PARAM(TxAbsIntDelay, "Transmit Absolute Interrupt Delay");
 151 #define DEFAULT_TADV                  32
 152 #define MAX_TXABSDELAY            0xFFFF
 153 #define MIN_TXABSDELAY                 0
 154
 155 /* Receive Interrupt Delay in units of 1.024 microseconds
 156  *   hardware will likely hang if you set this to anything but zero.
 157  *
 158  * Valid Range: 0-65535
 159  */
 160 E1000_PARAM(RxIntDelay, "Receive Interrupt Delay");
 161 #define DEFAULT_RDTR                   0
 162 #define MAX_RXDELAY               0xFFFF
 163 #define MIN_RXDELAY                    0
 164
 165 /* Receive Absolute Interrupt Delay in units of 1.024 microseconds
 166  *
 167  * Valid Range: 0-65535
 168  */
 169 E1000_PARAM(RxAbsIntDelay, "Receive Absolute Interrupt Delay");
 170 #define DEFAULT_RADV                   8
 171 #define MAX_RXABSDELAY            0xFFFF
 172 #define MIN_RXABSDELAY                 0
 173
 174 /* Interrupt Throttle Rate (interrupts/sec)
 175  *
 176  * Valid Range: 100-100000 (0=off, 1=dynamic, 3=dynamic conservative)
 177  */
 178 E1000_PARAM(InterruptThrottleRate, "Interrupt Throttling Rate");
 179 #define DEFAULT_ITR                    3
 180 #define MAX_ITR                   100000
 181 #define MIN_ITR                      100
 182
 183 /* Enable Smart Power Down of the PHY
 184  *
 185  * Valid Range: 0, 1
 186  *
 187  * Default Value: 0 (disabled)
 188  */
 189 E1000_PARAM(SmartPowerDownEnable, "Enable PHY smart power down");
 190
 191 struct e1000_option {
 192         enum { enable_option, range_option, list_option } type;
 193         const char *name;
 194         const char *err;
 195         int def;
 196         union {
 197                 struct { /* range_option info */
 198                         int min;
 199                         int max;
 200                 } r;
 201                 struct { /* list_option info */
 202                         int nr;
 203                         const struct e1000_opt_list { int i; char *str; } *p;
 204                 } l;
 205         } arg;
 206 };
 207
 208 static int e1000_validate_option(unsigned int *value,
 209                                  const struct e1000_option *opt,
 210                                  struct e1000_adapter *adapter)
 211 {
 212         if (*value == OPTION_UNSET) {
 213                 *value = opt->def;
 214                 return 0;
 215         }
 216
 217         switch (opt->type) {
 218         case enable_option:
 219                 switch (*value) {
 220                 case OPTION_ENABLED:
 221                         e_dev_info("%s Enabled\n", opt->name);
 222                         return 0;
 223                 case OPTION_DISABLED:
 224                         e_dev_info("%s Disabled\n", opt->name);
 225                         return 0;
 226                 }
 227                 break;
 228         case range_option:
 229                 if (*value >= opt->arg.r.min && *value <= opt->arg.r.max) {
 230                         e_dev_info("%s set to %i\n", opt->name, *value);
 231                         return 0;
 232                 }
 233                 break;
 234         case list_option: {
 235                 int i;
 236                 const struct e1000_opt_list *ent;
 237
 238                 for (i = 0; i < opt->arg.l.nr; i++) {
 239                         ent = &opt->arg.l.p[i];
 240                         if (*value == ent->i) {
 241                                 if (ent->str[0] != '\0')
 242                                         e_dev_info("%s\n", ent->str);
 243                                 return 0;
 244                         }
 245                 }
 246         }
 247                 break;
 248         default:
 249                 BUG();
 250         }
 251
 252         e_dev_info("Invalid %s value specified (%i) %s\n",
 253                opt->name, *value, opt->err);
 254         *value = opt->def;
 255         return -1;
 256 }
 257
 258 static void e1000_check_fiber_options(struct e1000_adapter *adapter);
 259 static void e1000_check_copper_options(struct e1000_adapter *adapter);
 260
 261 /**
 262  * e1000_check_options - Range Checking for Command Line Parameters
 263  * @adapter: board private structure
 264  *
 265  * This routine checks all command line parameters for valid user
 266  * input.  If an invalid value is given, or if no user specified
 267  * value exists, a default value is used.  The final value is stored
 268  * in a variable in the adapter structure.
 269  **/
 270 void e1000_check_options(struct e1000_adapter *adapter)
 271 {
 272         struct e1000_option opt;
 273         int bd = adapter->bd_number;
 274
 275         if (bd >= E1000_MAX_NIC) {
 276                 e_dev_warn("Warning: no configuration for board #%i "
 277                            "using defaults for all values\n", bd);
 278         }
 279
 280         { /* Transmit Descriptor Count */
 281                 struct e1000_tx_ring *tx_ring = adapter->tx_ring;
 282                 int i;
 283                 e1000_mac_type mac_type = adapter->hw.mac_type;
 284
 285                 opt = (struct e1000_option) {
 286                         .type = range_option,
 287                         .name = "Transmit Descriptors",
 288                         .err  = "using default of "
 289                                 __MODULE_STRING(E1000_DEFAULT_TXD),
 290                         .def  = E1000_DEFAULT_TXD,
 291                         .arg  = { .r = {
 292                                 .min = E1000_MIN_TXD,
 293                                 .max = mac_type < e1000_82544 ? E1000_MAX_TXD : E1000_MAX_82544_TXD
 294                                 }}
 295                 };
 296
 297                 if (num_TxDescriptors > bd) {
 298                         tx_ring->count = TxDescriptors[bd];
 299                         e1000_validate_option(&tx_ring->count, &opt, adapter);
 300                         tx_ring->count = ALIGN(tx_ring->count,
 301                                                 REQ_TX_DESCRIPTOR_MULTIPLE);
 302                 } else {
 303                         tx_ring->count = opt.def;
 304                 }
 305                 for (i = 0; i < adapter->num_tx_queues; i++)
 306                         tx_ring[i].count = tx_ring->count;
 307         }
 308         { /* Receive Descriptor Count */
 309                 struct e1000_rx_ring *rx_ring = adapter->rx_ring;
 310                 int i;
 311                 e1000_mac_type mac_type = adapter->hw.mac_type;
 312
 313                 opt = (struct e1000_option) {
 314                         .type = range_option,
 315                         .name = "Receive Descriptors",
 316                         .err  = "using default of "
 317                                 __MODULE_STRING(E1000_DEFAULT_RXD),
 318                         .def  = E1000_DEFAULT_RXD,
 319                         .arg  = { .r = {
 320                                 .min = E1000_MIN_RXD,
 321                                 .max = mac_type < e1000_82544 ? E1000_MAX_RXD :
 322                                        E1000_MAX_82544_RXD
 323                         }}
 324                 };
 325
 326                 if (num_RxDescriptors > bd) {
 327                         rx_ring->count = RxDescriptors[bd];
 328                         e1000_validate_option(&rx_ring->count, &opt, adapter);
 329                         rx_ring->count = ALIGN(rx_ring->count,
 330                                                 REQ_RX_DESCRIPTOR_MULTIPLE);
 331                 } else {
 332                         rx_ring->count = opt.def;
 333                 }
 334                 for (i = 0; i < adapter->num_rx_queues; i++)
 335                         rx_ring[i].count = rx_ring->count;
 336         }
 337         { /* Checksum Offload Enable/Disable */
 338                 opt = (struct e1000_option) {
 339                         .type = enable_option,
 340                         .name = "Checksum Offload",
 341                         .err  = "defaulting to Enabled",
 342                         .def  = OPTION_ENABLED
 343                 };
 344
 345                 if (num_XsumRX > bd) {
 346                         unsigned int rx_csum = XsumRX[bd];
 347                         e1000_validate_option(&rx_csum, &opt, adapter);
 348                         adapter->rx_csum = rx_csum;
 349                 } else {
 350                         adapter->rx_csum = opt.def;
 351                 }
 352         }
 353         { /* Flow Control */
 354
 355                 static const struct e1000_opt_list fc_list[] = {
 356                        { E1000_FC_NONE, "Flow Control Disabled" },
 357                        { E1000_FC_RX_PAUSE, "Flow Control Receive Only" },
 358                        { E1000_FC_TX_PAUSE, "Flow Control Transmit Only" },
 359                        { E1000_FC_FULL, "Flow Control Enabled" },
 360                        { E1000_FC_DEFAULT, "Flow Control Hardware Default" }
 361                 };
 362
 363                 opt = (struct e1000_option) {
 364                         .type = list_option,
 365                         .name = "Flow Control",
 366                         .err  = "reading default settings from EEPROM",
 367                         .def  = E1000_FC_DEFAULT,
 368                         .arg  = { .l = { .nr = ARRAY_SIZE(fc_list),
 369                                          .p = fc_list }}
 370                 };
 371
 372                 if (num_FlowControl > bd) {
 373                         unsigned int fc = FlowControl[bd];
 374                         e1000_validate_option(&fc, &opt, adapter);
 375                         adapter->hw.fc = adapter->hw.original_fc = fc;
 376                 } else {
 377                         adapter->hw.fc = adapter->hw.original_fc = opt.def;
 378                 }
 379         }
 380         { /* Transmit Interrupt Delay */
 381                 opt = (struct e1000_option) {
 382                         .type = range_option,
 383                         .name = "Transmit Interrupt Delay",
 384                         .err  = "using default of " __MODULE_STRING(DEFAULT_TIDV),
 385                         .def  = DEFAULT_TIDV,
 386                         .arg  = { .r = { .min = MIN_TXDELAY,
 387                                          .max = MAX_TXDELAY }}
 388                 };
 389
 390                 if (num_TxIntDelay > bd) {
 391                         adapter->tx_int_delay = TxIntDelay[bd];
 392                         e1000_validate_option(&adapter->tx_int_delay, &opt,
 393                                               adapter);
 394                 } else {
 395                         adapter->tx_int_delay = opt.def;
 396                 }
 397         }
 398         { /* Transmit Absolute Interrupt Delay */
 399                 opt = (struct e1000_option) {
 400                         .type = range_option,
 401                         .name = "Transmit Absolute Interrupt Delay",
 402                         .err  = "using default of " __MODULE_STRING(DEFAULT_TADV),
 403                         .def  = DEFAULT_TADV,
 404                         .arg  = { .r = { .min = MIN_TXABSDELAY,
 405                                          .max = MAX_TXABSDELAY }}
 406                 };
 407
 408                 if (num_TxAbsIntDelay > bd) {
 409                         adapter->tx_abs_int_delay = TxAbsIntDelay[bd];
 410                         e1000_validate_option(&adapter->tx_abs_int_delay, &opt,
 411                                               adapter);
 412                 } else {
 413                         adapter->tx_abs_int_delay = opt.def;
 414                 }
 415         }
 416         { /* Receive Interrupt Delay */
 417                 opt = (struct e1000_option) {
 418                         .type = range_option,
 419                         .name = "Receive Interrupt Delay",
 420                         .err  = "using default of " __MODULE_STRING(DEFAULT_RDTR),
 421                         .def  = DEFAULT_RDTR,
 422                         .arg  = { .r = { .min = MIN_RXDELAY,
 423                                          .max = MAX_RXDELAY }}
 424                 };
 425
 426                 if (num_RxIntDelay > bd) {
 427                         adapter->rx_int_delay = RxIntDelay[bd];
 428                         e1000_validate_option(&adapter->rx_int_delay, &opt,
 429                                               adapter);
 430                 } else {
 431                         adapter->rx_int_delay = opt.def;
 432                 }
 433         }
 434         { /* Receive Absolute Interrupt Delay */
 435                 opt = (struct e1000_option) {
 436                         .type = range_option,
 437                         .name = "Receive Absolute Interrupt Delay",
 438                         .err  = "using default of " __MODULE_STRING(DEFAULT_RADV),
 439                         .def  = DEFAULT_RADV,
 440                         .arg  = { .r = { .min = MIN_RXABSDELAY,
 441                                          .max = MAX_RXABSDELAY }}
 442                 };
 443
 444                 if (num_RxAbsIntDelay > bd) {
 445                         adapter->rx_abs_int_delay = RxAbsIntDelay[bd];
 446                         e1000_validate_option(&adapter->rx_abs_int_delay, &opt,
 447                                               adapter);
 448                 } else {
 449                         adapter->rx_abs_int_delay = opt.def;
 450                 }
 451         }
 452         { /* Interrupt Throttling Rate */
 453                 opt = (struct e1000_option) {
 454                         .type = range_option,
 455                         .name = "Interrupt Throttling Rate (ints/sec)",
 456                         .err  = "using default of " __MODULE_STRING(DEFAULT_ITR),
 457                         .def  = DEFAULT_ITR,
 458                         .arg  = { .r = { .min = MIN_ITR,
 459                                          .max = MAX_ITR }}
 460                 };
 461
 462                 if (num_InterruptThrottleRate > bd) {
 463                         adapter->itr = InterruptThrottleRate[bd];
 464                         switch (adapter->itr) {
 465                         case 0:
 466                                 e_dev_info("%s turned off\n", opt.name);
 467                                 break;
 468                         case 1:
 469                                 e_dev_info("%s set to dynamic mode\n",
 470                                            opt.name);
 471                                 adapter->itr_setting = adapter->itr;
 472                                 adapter->itr = 20000;
 473                                 break;
 474                         case 3:
 475                                 e_dev_info("%s set to dynamic conservative "
 476                                            "mode\n", opt.name);
 477                                 adapter->itr_setting = adapter->itr;
 478                                 adapter->itr = 20000;
 479                                 break;
 480                         case 4:
 481                                 e_dev_info("%s set to simplified "
 482                                            "(2000-8000) ints mode\n", opt.name);
 483                                 adapter->itr_setting = adapter->itr;
 484                                 break;
 485                         default:
 486                                 e1000_validate_option(&adapter->itr, &opt,
 487                                                       adapter);
 488                                 /* save the setting, because the dynamic bits
 489                                  * change itr.
 490                                  * clear the lower two bits because they are
 491                                  * used as control
 492                                  */
 493                                 adapter->itr_setting = adapter->itr & ~3;
 494                                 break;
 495                         }
 496                 } else {
 497                         adapter->itr_setting = opt.def;
 498                         adapter->itr = 20000;
 499                 }
 500         }
 501         { /* Smart Power Down */
 502                 opt = (struct e1000_option) {
 503                         .type = enable_option,
 504                         .name = "PHY Smart Power Down",
 505                         .err  = "defaulting to Disabled",
 506                         .def  = OPTION_DISABLED
 507                 };
 508
 509                 if (num_SmartPowerDownEnable > bd) {
 510                         unsigned int spd = SmartPowerDownEnable[bd];
 511                         e1000_validate_option(&spd, &opt, adapter);
 512                         adapter->smart_power_down = spd;
 513                 } else {
 514                         adapter->smart_power_down = opt.def;
 515                 }
 516         }
 517
 518         switch (adapter->hw.media_type) {
 519         case e1000_media_type_fiber:
 520         case e1000_media_type_internal_serdes:
 521                 e1000_check_fiber_options(adapter);
 522                 break;
 523         case e1000_media_type_copper:
 524                 e1000_check_copper_options(adapter);
 525                 break;
 526         default:
 527                 BUG();
 528         }
 529 }
 530
 531 /**
 532  * e1000_check_fiber_options - Range Checking for Link Options, Fiber Version
 533  * @adapter: board private structure
 534  *
 535  * Handles speed and duplex options on fiber adapters
 536  **/
 537 static void e1000_check_fiber_options(struct e1000_adapter *adapter)
 538 {
 539         int bd = adapter->bd_number;
 540         if (num_Speed > bd) {
 541                 e_dev_info("Speed not valid for fiber adapters, parameter "
 542                            "ignored\n");
 543         }
 544
 545         if (num_Duplex > bd) {
 546                 e_dev_info("Duplex not valid for fiber adapters, parameter "
 547                            "ignored\n");
 548         }
 549
 550         if ((num_AutoNeg > bd) && (AutoNeg[bd] != 0x20)) {
 551                 e_dev_info("AutoNeg other than 1000/Full is not valid for fiber"
 552                            "adapters, parameter ignored\n");
 553         }
 554 }
 555
 556 /**
 557  * e1000_check_copper_options - Range Checking for Link Options, Copper Version
 558  * @adapter: board private structure
 559  *
 560  * Handles speed and duplex options on copper adapters
 561  **/
 562 static void e1000_check_copper_options(struct e1000_adapter *adapter)
 563 {
 564         struct e1000_option opt;
 565         unsigned int speed, dplx, an;
 566         int bd = adapter->bd_number;
 567
 568         { /* Speed */
 569                 static const struct e1000_opt_list speed_list[] = {
 570                         {          0, "" },
 571                         {   SPEED_10, "" },
 572                         {  SPEED_100, "" },
 573                         { SPEED_1000, "" }};
 574
 575                 opt = (struct e1000_option) {
 576                         .type = list_option,
 577                         .name = "Speed",
 578                         .err  = "parameter ignored",
 579                         .def  = 0,
 580                         .arg  = { .l = { .nr = ARRAY_SIZE(speed_list),
 581                                          .p = speed_list }}
 582                 };
 583
 584                 if (num_Speed > bd) {
 585                         speed = Speed[bd];
 586                         e1000_validate_option(&speed, &opt, adapter);
 587                 } else {
 588                         speed = opt.def;
 589                 }
 590         }
 591         { /* Duplex */
 592                 static const struct e1000_opt_list dplx_list[] = {
 593                         {           0, "" },
 594                         { HALF_DUPLEX, "" },
 595                         { FULL_DUPLEX, "" }};
 596
 597                 opt = (struct e1000_option) {
 598                         .type = list_option,
 599                         .name = "Duplex",
 600                         .err  = "parameter ignored",
 601                         .def  = 0,
 602                         .arg  = { .l = { .nr = ARRAY_SIZE(dplx_list),
 603                                          .p = dplx_list }}
 604                 };
 605
 606                 if (num_Duplex > bd) {
 607                         dplx = Duplex[bd];
 608                         e1000_validate_option(&dplx, &opt, adapter);
 609                 } else {
 610                         dplx = opt.def;
 611                 }
 612         }
 613
 614         if ((num_AutoNeg > bd) && (speed != 0 || dplx != 0)) {
 615                 e_dev_info("AutoNeg specified along with Speed or Duplex, "
 616                            "parameter ignored\n");
 617                 adapter->hw.autoneg_advertised = AUTONEG_ADV_DEFAULT;
 618         } else { /* Autoneg */
 619                 static const struct e1000_opt_list an_list[] =
 620                         #define AA "AutoNeg advertising "
 621                         {{ 0x01, AA "10/HD" },
 622                          { 0x02, AA "10/FD" },
 623                          { 0x03, AA "10/FD, 10/HD" },
 624                          { 0x04, AA "100/HD" },
 625                          { 0x05, AA "100/HD, 10/HD" },
 626                          { 0x06, AA "100/HD, 10/FD" },
 627                          { 0x07, AA "100/HD, 10/FD, 10/HD" },
 628                          { 0x08, AA "100/FD" },
 629                          { 0x09, AA "100/FD, 10/HD" },
 630                          { 0x0a, AA "100/FD, 10/FD" },
 631                          { 0x0b, AA "100/FD, 10/FD, 10/HD" },
 632                          { 0x0c, AA "100/FD, 100/HD" },
 633                          { 0x0d, AA "100/FD, 100/HD, 10/HD" },
 634                          { 0x0e, AA "100/FD, 100/HD, 10/FD" },
 635                          { 0x0f, AA "100/FD, 100/HD, 10/FD, 10/HD" },
 636                          { 0x20, AA "1000/FD" },
 637                          { 0x21, AA "1000/FD, 10/HD" },
 638                          { 0x22, AA "1000/FD, 10/FD" },
 639                          { 0x23, AA "1000/FD, 10/FD, 10/HD" },
 640                          { 0x24, AA "1000/FD, 100/HD" },
 641                          { 0x25, AA "1000/FD, 100/HD, 10/HD" },
 642                          { 0x26, AA "1000/FD, 100/HD, 10/FD" },
 643                          { 0x27, AA "1000/FD, 100/HD, 10/FD, 10/HD" },
 644                          { 0x28, AA "1000/FD, 100/FD" },
 645                          { 0x29, AA "1000/FD, 100/FD, 10/HD" },
 646                          { 0x2a, AA "1000/FD, 100/FD, 10/FD" },
 647                          { 0x2b, AA "1000/FD, 100/FD, 10/FD, 10/HD" },
 648                          { 0x2c, AA "1000/FD, 100/FD, 100/HD" },
 649                          { 0x2d, AA "1000/FD, 100/FD, 100/HD, 10/HD" },
 650                          { 0x2e, AA "1000/FD, 100/FD, 100/HD, 10/FD" },
 651                          { 0x2f, AA "1000/FD, 100/FD, 100/HD, 10/FD, 10/HD" }};
 652
 653                 opt = (struct e1000_option) {
 654                         .type = list_option,
 655                         .name = "AutoNeg",
 656                         .err  = "parameter ignored",
 657                         .def  = AUTONEG_ADV_DEFAULT,
 658                         .arg  = { .l = { .nr = ARRAY_SIZE(an_list),
 659                                          .p = an_list }}
 660                 };
 661
 662                 if (num_AutoNeg > bd) {
 663                         an = AutoNeg[bd];
 664                         e1000_validate_option(&an, &opt, adapter);
 665                 } else {
 666                         an = opt.def;
 667                 }
 668                 adapter->hw.autoneg_advertised = an;
 669         }
 670
 671         switch (speed + dplx) {
 672         case 0:
 673                 adapter->hw.autoneg = adapter->fc_autoneg = 1;
 674                 if ((num_Speed > bd) && (speed != 0 || dplx != 0))
 675                         e_dev_info("Speed and duplex autonegotiation "
 676                                    "enabled\n");
 677                 break;
 678         case HALF_DUPLEX:
 679                 e_dev_info("Half Duplex specified without Speed\n");
 680                 e_dev_info("Using Autonegotiation at Half Duplex only\n");
 681                 adapter->hw.autoneg = adapter->fc_autoneg = 1;
 682                 adapter->hw.autoneg_advertised = ADVERTISE_10_HALF |
 683                                                  ADVERTISE_100_HALF;
 684                 break;
 685         case FULL_DUPLEX:
 686                 e_dev_info("Full Duplex specified without Speed\n");
 687                 e_dev_info("Using Autonegotiation at Full Duplex only\n");
 688                 adapter->hw.autoneg = adapter->fc_autoneg = 1;
 689                 adapter->hw.autoneg_advertised = ADVERTISE_10_FULL |
 690                                                  ADVERTISE_100_FULL |
 691                                                  ADVERTISE_1000_FULL;
 692                 break;
 693         case SPEED_10:
 694                 e_dev_info("10 Mbps Speed specified without Duplex\n");
 695                 e_dev_info("Using Autonegotiation at 10 Mbps only\n");
 696                 adapter->hw.autoneg = adapter->fc_autoneg = 1;
 697                 adapter->hw.autoneg_advertised = ADVERTISE_10_HALF |
 698                                                  ADVERTISE_10_FULL;
 699                 break;
 700         case SPEED_10 + HALF_DUPLEX:
 701                 e_dev_info("Forcing to 10 Mbps Half Duplex\n");
 702                 adapter->hw.autoneg = adapter->fc_autoneg = 0;
 703                 adapter->hw.forced_speed_duplex = e1000_10_half;
 704                 adapter->hw.autoneg_advertised = 0;
 705                 break;
 706         case SPEED_10 + FULL_DUPLEX:
 707                 e_dev_info("Forcing to 10 Mbps Full Duplex\n");
 708                 adapter->hw.autoneg = adapter->fc_autoneg = 0;
 709                 adapter->hw.forced_speed_duplex = e1000_10_full;
 710                 adapter->hw.autoneg_advertised = 0;
 711                 break;
 712         case SPEED_100:
 713                 e_dev_info("100 Mbps Speed specified without Duplex\n");
 714                 e_dev_info("Using Autonegotiation at 100 Mbps only\n");
 715                 adapter->hw.autoneg = adapter->fc_autoneg = 1;
 716                 adapter->hw.autoneg_advertised = ADVERTISE_100_HALF |
 717                                                  ADVERTISE_100_FULL;
 718                 break;
 719         case SPEED_100 + HALF_DUPLEX:
 720                 e_dev_info("Forcing to 100 Mbps Half Duplex\n");
 721                 adapter->hw.autoneg = adapter->fc_autoneg = 0;
 722                 adapter->hw.forced_speed_duplex = e1000_100_half;
 723                 adapter->hw.autoneg_advertised = 0;
 724                 break;
 725         case SPEED_100 + FULL_DUPLEX:
 726                 e_dev_info("Forcing to 100 Mbps Full Duplex\n");
 727                 adapter->hw.autoneg = adapter->fc_autoneg = 0;
 728                 adapter->hw.forced_speed_duplex = e1000_100_full;
 729                 adapter->hw.autoneg_advertised = 0;
 730                 break;
 731         case SPEED_1000:
 732                 e_dev_info("1000 Mbps Speed specified without Duplex\n");
 733                 goto full_duplex_only;
 734         case SPEED_1000 + HALF_DUPLEX:
 735                 e_dev_info("Half Duplex is not supported at 1000 Mbps\n");
 736                 /* fall through */
 737         case SPEED_1000 + FULL_DUPLEX:
 738 full_duplex_only:
 739                 e_dev_info("Using Autonegotiation at 1000 Mbps Full Duplex "
 740                            "only\n");
 741                 adapter->hw.autoneg = adapter->fc_autoneg = 1;
 742                 adapter->hw.autoneg_advertised = ADVERTISE_1000_FULL;
 743                 break;
 744         default:
 745                 BUG();
 746         }
 747
 748         /* Speed, AutoNeg and MDI/MDI-X must all play nice */
 749         if (e1000_validate_mdi_setting(&(adapter->hw)) < 0) {
 750                 e_dev_info("Speed, AutoNeg and MDI-X specs are incompatible. "
 751                            "Setting MDI-X to a compatible value.\n");
 752         }
 753 }
 754