drivers/net/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 __devinitdata 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 /* Enable Kumeran Lock Loss workaround
 192  *
 193  * Valid Range: 0, 1
 194  *
 195  * Default Value: 1 (enabled)
 196  */
 197 E1000_PARAM(KumeranLockLoss, "Enable Kumeran lock loss workaround");
 198
 199 struct e1000_option {
 200         enum { enable_option, range_option, list_option } type;
 201         const char *name;
 202         const char *err;
 203         int def;
 204         union {
 205                 struct { /* range_option info */
 206                         int min;
 207                         int max;
 208                 } r;
 209                 struct { /* list_option info */
 210                         int nr;
 211                         const struct e1000_opt_list { int i; char *str; } *p;
 212                 } l;
 213         } arg;
 214 };
 215
 216 static int __devinit e1000_validate_option(unsigned int *value,
 217                                            const struct e1000_option *opt,
 218                                            struct e1000_adapter *adapter)
 219 {
 220         if (*value == OPTION_UNSET) {
 221                 *value = opt->def;
 222                 return 0;
 223         }
 224
 225         switch (opt->type) {
 226         case enable_option:
 227                 switch (*value) {
 228                 case OPTION_ENABLED:
 229                         DPRINTK(PROBE, INFO, "%s Enabled\n", opt->name);
 230                         return 0;
 231                 case OPTION_DISABLED:
 232                         DPRINTK(PROBE, INFO, "%s Disabled\n", opt->name);
 233                         return 0;
 234                 }
 235                 break;
 236         case range_option:
 237                 if (*value >= opt->arg.r.min && *value <= opt->arg.r.max) {
 238                         DPRINTK(PROBE, INFO,
 239                                         "%s set to %i\n", opt->name, *value);
 240                         return 0;
 241                 }
 242                 break;
 243         case list_option: {
 244                 int i;
 245                 const struct e1000_opt_list *ent;
 246
 247                 for (i = 0; i < opt->arg.l.nr; i++) {
 248                         ent = &opt->arg.l.p[i];
 249                         if (*value == ent->i) {
 250                                 if (ent->str[0] != '\0')
 251                                         DPRINTK(PROBE, INFO, "%s\n", ent->str);
 252                                 return 0;
 253                         }
 254                 }
 255         }
 256                 break;
 257         default:
 258                 BUG();
 259         }
 260
 261         DPRINTK(PROBE, INFO, "Invalid %s value specified (%i) %s\n",
 262                opt->name, *value, opt->err);
 263         *value = opt->def;
 264         return -1;
 265 }
 266
 267 static void e1000_check_fiber_options(struct e1000_adapter *adapter);
 268 static void e1000_check_copper_options(struct e1000_adapter *adapter);
 269
 270 /**
 271  * e1000_check_options - Range Checking for Command Line Parameters
 272  * @adapter: board private structure
 273  *
 274  * This routine checks all command line parameters for valid user
 275  * input.  If an invalid value is given, or if no user specified
 276  * value exists, a default value is used.  The final value is stored
 277  * in a variable in the adapter structure.
 278  **/
 279
 280 void __devinit e1000_check_options(struct e1000_adapter *adapter)
 281 {
 282         struct e1000_option opt;
 283         int bd = adapter->bd_number;
 284
 285         if (bd >= E1000_MAX_NIC) {
 286                 DPRINTK(PROBE, NOTICE,
 287                        "Warning: no configuration for board #%i\n", bd);
 288                 DPRINTK(PROBE, NOTICE, "Using defaults for all values\n");
 289         }
 290
 291         { /* Transmit Descriptor Count */
 292                 struct e1000_tx_ring *tx_ring = adapter->tx_ring;
 293                 int i;
 294                 e1000_mac_type mac_type = adapter->hw.mac_type;
 295
 296                 opt = (struct e1000_option) {
 297                         .type = range_option,
 298                         .name = "Transmit Descriptors",
 299                         .err  = "using default of "
 300                                 __MODULE_STRING(E1000_DEFAULT_TXD),
 301                         .def  = E1000_DEFAULT_TXD,
 302                         .arg  = { .r = {
 303                                 .min = E1000_MIN_TXD,
 304                                 .max = mac_type < e1000_82544 ? E1000_MAX_TXD : E1000_MAX_82544_TXD
 305                                 }}
 306                 };
 307
 308                 if (num_TxDescriptors > bd) {
 309                         tx_ring->count = TxDescriptors[bd];
 310                         e1000_validate_option(&tx_ring->count, &opt, adapter);
 311                         tx_ring->count = ALIGN(tx_ring->count,
 312                                                 REQ_TX_DESCRIPTOR_MULTIPLE);
 313                 } else {
 314                         tx_ring->count = opt.def;
 315                 }
 316                 for (i = 0; i < adapter->num_tx_queues; i++)
 317                         tx_ring[i].count = tx_ring->count;
 318         }
 319         { /* Receive Descriptor Count */
 320                 struct e1000_rx_ring *rx_ring = adapter->rx_ring;
 321                 int i;
 322                 e1000_mac_type mac_type = adapter->hw.mac_type;
 323
 324                 opt = (struct e1000_option) {
 325                         .type = range_option,
 326                         .name = "Receive Descriptors",
 327                         .err  = "using default of "
 328                                 __MODULE_STRING(E1000_DEFAULT_RXD),
 329                         .def  = E1000_DEFAULT_RXD,
 330                         .arg  = { .r = {
 331                                 .min = E1000_MIN_RXD,
 332                                 .max = mac_type < e1000_82544 ? E1000_MAX_RXD : E1000_MAX_82544_RXD
 333                         }}
 334                 };
 335
 336                 if (num_RxDescriptors > bd) {
 337                         rx_ring->count = RxDescriptors[bd];
 338                         e1000_validate_option(&rx_ring->count, &opt, adapter);
 339                         rx_ring->count = ALIGN(rx_ring->count,
 340                                                 REQ_RX_DESCRIPTOR_MULTIPLE);
 341                 } else {
 342                         rx_ring->count = opt.def;
 343                 }
 344                 for (i = 0; i < adapter->num_rx_queues; i++)
 345                         rx_ring[i].count = rx_ring->count;
 346         }
 347         { /* Checksum Offload Enable/Disable */
 348                 opt = (struct e1000_option) {
 349                         .type = enable_option,
 350                         .name = "Checksum Offload",
 351                         .err  = "defaulting to Enabled",
 352                         .def  = OPTION_ENABLED
 353                 };
 354
 355                 if (num_XsumRX > bd) {
 356                         unsigned int rx_csum = XsumRX[bd];
 357                         e1000_validate_option(&rx_csum, &opt, adapter);
 358                         adapter->rx_csum = rx_csum;
 359                 } else {
 360                         adapter->rx_csum = opt.def;
 361                 }
 362         }
 363         { /* Flow Control */
 364
 365                 struct e1000_opt_list fc_list[] =
 366                         {{ E1000_FC_NONE,    "Flow Control Disabled" },
 367                          { E1000_FC_RX_PAUSE,"Flow Control Receive Only" },
 368                          { E1000_FC_TX_PAUSE,"Flow Control Transmit Only" },
 369                          { E1000_FC_FULL,    "Flow Control Enabled" },
 370                          { E1000_FC_DEFAULT, "Flow Control Hardware Default" }};
 371
 372                 opt = (struct e1000_option) {
 373                         .type = list_option,
 374                         .name = "Flow Control",
 375                         .err  = "reading default settings from EEPROM",
 376                         .def  = E1000_FC_DEFAULT,
 377                         .arg  = { .l = { .nr = ARRAY_SIZE(fc_list),
 378                                          .p = fc_list }}
 379                 };
 380
 381                 if (num_FlowControl > bd) {
 382                         unsigned int fc = FlowControl[bd];
 383                         e1000_validate_option(&fc, &opt, adapter);
 384                         adapter->hw.fc = adapter->hw.original_fc = fc;
 385                 } else {
 386                         adapter->hw.fc = adapter->hw.original_fc = opt.def;
 387                 }
 388         }
 389         { /* Transmit Interrupt Delay */
 390                 opt = (struct e1000_option) {
 391                         .type = range_option,
 392                         .name = "Transmit Interrupt Delay",
 393                         .err  = "using default of " __MODULE_STRING(DEFAULT_TIDV),
 394                         .def  = DEFAULT_TIDV,
 395                         .arg  = { .r = { .min = MIN_TXDELAY,
 396                                          .max = MAX_TXDELAY }}
 397                 };
 398
 399                 if (num_TxIntDelay > bd) {
 400                         adapter->tx_int_delay = TxIntDelay[bd];
 401                         e1000_validate_option(&adapter->tx_int_delay, &opt,
 402                                               adapter);
 403                 } else {
 404                         adapter->tx_int_delay = opt.def;
 405                 }
 406         }
 407         { /* Transmit Absolute Interrupt Delay */
 408                 opt = (struct e1000_option) {
 409                         .type = range_option,
 410                         .name = "Transmit Absolute Interrupt Delay",
 411                         .err  = "using default of " __MODULE_STRING(DEFAULT_TADV),
 412                         .def  = DEFAULT_TADV,
 413                         .arg  = { .r = { .min = MIN_TXABSDELAY,
 414                                          .max = MAX_TXABSDELAY }}
 415                 };
 416
 417                 if (num_TxAbsIntDelay > bd) {
 418                         adapter->tx_abs_int_delay = TxAbsIntDelay[bd];
 419                         e1000_validate_option(&adapter->tx_abs_int_delay, &opt,
 420                                               adapter);
 421                 } else {
 422                         adapter->tx_abs_int_delay = opt.def;
 423                 }
 424         }
 425         { /* Receive Interrupt Delay */
 426                 opt = (struct e1000_option) {
 427                         .type = range_option,
 428                         .name = "Receive Interrupt Delay",
 429                         .err  = "using default of " __MODULE_STRING(DEFAULT_RDTR),
 430                         .def  = DEFAULT_RDTR,
 431                         .arg  = { .r = { .min = MIN_RXDELAY,
 432                                          .max = MAX_RXDELAY }}
 433                 };
 434
 435                 if (num_RxIntDelay > bd) {
 436                         adapter->rx_int_delay = RxIntDelay[bd];
 437                         e1000_validate_option(&adapter->rx_int_delay, &opt,
 438                                               adapter);
 439                 } else {
 440                         adapter->rx_int_delay = opt.def;
 441                 }
 442         }
 443         { /* Receive Absolute Interrupt Delay */
 444                 opt = (struct e1000_option) {
 445                         .type = range_option,
 446                         .name = "Receive Absolute Interrupt Delay",
 447                         .err  = "using default of " __MODULE_STRING(DEFAULT_RADV),
 448                         .def  = DEFAULT_RADV,
 449                         .arg  = { .r = { .min = MIN_RXABSDELAY,
 450                                          .max = MAX_RXABSDELAY }}
 451                 };
 452
 453                 if (num_RxAbsIntDelay > bd) {
 454                         adapter->rx_abs_int_delay = RxAbsIntDelay[bd];
 455                         e1000_validate_option(&adapter->rx_abs_int_delay, &opt,
 456                                               adapter);
 457                 } else {
 458                         adapter->rx_abs_int_delay = opt.def;
 459                 }
 460         }
 461         { /* Interrupt Throttling Rate */
 462                 opt = (struct e1000_option) {
 463                         .type = range_option,
 464                         .name = "Interrupt Throttling Rate (ints/sec)",
 465                         .err  = "using default of " __MODULE_STRING(DEFAULT_ITR),
 466                         .def  = DEFAULT_ITR,
 467                         .arg  = { .r = { .min = MIN_ITR,
 468                                          .max = MAX_ITR }}
 469                 };
 470
 471                 if (num_InterruptThrottleRate > bd) {
 472                         adapter->itr = InterruptThrottleRate[bd];
 473                         switch (adapter->itr) {
 474                         case 0:
 475                                 DPRINTK(PROBE, INFO, "%s turned off\n",
 476                                         opt.name);
 477                                 break;
 478                         case 1:
 479                                 DPRINTK(PROBE, INFO, "%s set to dynamic mode\n",
 480                                         opt.name);
 481                                 adapter->itr_setting = adapter->itr;
 482                                 adapter->itr = 20000;
 483                                 break;
 484                         case 3:
 485                                 DPRINTK(PROBE, INFO,
 486                                         "%s set to dynamic conservative mode\n",
 487                                         opt.name);
 488                                 adapter->itr_setting = adapter->itr;
 489                                 adapter->itr = 20000;
 490                                 break;
 491                         default:
 492                                 e1000_validate_option(&adapter->itr, &opt,
 493                                         adapter);
 494                                 /* save the setting, because the dynamic bits change itr */
 495                                 /* clear the lower two bits because they are
 496                                  * used as control */
 497                                 adapter->itr_setting = adapter->itr & ~3;
 498                                 break;
 499                         }
 500                 } else {
 501                         adapter->itr_setting = opt.def;
 502                         adapter->itr = 20000;
 503                 }
 504         }
 505         { /* Smart Power Down */
 506                 opt = (struct e1000_option) {
 507                         .type = enable_option,
 508                         .name = "PHY Smart Power Down",
 509                         .err  = "defaulting to Disabled",
 510                         .def  = OPTION_DISABLED
 511                 };
 512
 513                 if (num_SmartPowerDownEnable > bd) {
 514                         unsigned int spd = SmartPowerDownEnable[bd];
 515                         e1000_validate_option(&spd, &opt, adapter);
 516                         adapter->smart_power_down = spd;
 517                 } else {
 518                         adapter->smart_power_down = opt.def;
 519                 }
 520         }
 521
 522         switch (adapter->hw.media_type) {
 523         case e1000_media_type_fiber:
 524         case e1000_media_type_internal_serdes:
 525                 e1000_check_fiber_options(adapter);
 526                 break;
 527         case e1000_media_type_copper:
 528                 e1000_check_copper_options(adapter);
 529                 break;
 530         default:
 531                 BUG();
 532         }
 533 }
 534
 535 /**
 536  * e1000_check_fiber_options - Range Checking for Link Options, Fiber Version
 537  * @adapter: board private structure
 538  *
 539  * Handles speed and duplex options on fiber adapters
 540  **/
 541
 542 static void __devinit e1000_check_fiber_options(struct e1000_adapter *adapter)
 543 {
 544         int bd = adapter->bd_number;
 545         if (num_Speed > bd) {
 546                 DPRINTK(PROBE, INFO, "Speed not valid for fiber adapters, "
 547                        "parameter ignored\n");
 548         }
 549
 550         if (num_Duplex > bd) {
 551                 DPRINTK(PROBE, INFO, "Duplex not valid for fiber adapters, "
 552                        "parameter ignored\n");
 553         }
 554
 555         if ((num_AutoNeg > bd) && (AutoNeg[bd] != 0x20)) {
 556                 DPRINTK(PROBE, INFO, "AutoNeg other than 1000/Full is "
 557                                  "not valid for fiber adapters, "
 558                                  "parameter ignored\n");
 559         }
 560 }
 561
 562 /**
 563  * e1000_check_copper_options - Range Checking for Link Options, Copper Version
 564  * @adapter: board private structure
 565  *
 566  * Handles speed and duplex options on copper adapters
 567  **/
 568
 569 static void __devinit e1000_check_copper_options(struct e1000_adapter *adapter)
 570 {
 571         struct e1000_option opt;
 572         unsigned int speed, dplx, an;
 573         int bd = adapter->bd_number;
 574
 575         { /* Speed */
 576                 static const struct e1000_opt_list speed_list[] = {
 577                         {          0, "" },
 578                         {   SPEED_10, "" },
 579                         {  SPEED_100, "" },
 580                         { SPEED_1000, "" }};
 581
 582                 opt = (struct e1000_option) {
 583                         .type = list_option,
 584                         .name = "Speed",
 585                         .err  = "parameter ignored",
 586                         .def  = 0,
 587                         .arg  = { .l = { .nr = ARRAY_SIZE(speed_list),
 588                                          .p = speed_list }}
 589                 };
 590
 591                 if (num_Speed > bd) {
 592                         speed = Speed[bd];
 593                         e1000_validate_option(&speed, &opt, adapter);
 594                 } else {
 595                         speed = opt.def;
 596                 }
 597         }
 598         { /* Duplex */
 599                 static const struct e1000_opt_list dplx_list[] = {
 600                         {           0, "" },
 601                         { HALF_DUPLEX, "" },
 602                         { FULL_DUPLEX, "" }};
 603
 604                 opt = (struct e1000_option) {
 605                         .type = list_option,
 606                         .name = "Duplex",
 607                         .err  = "parameter ignored",
 608                         .def  = 0,
 609                         .arg  = { .l = { .nr = ARRAY_SIZE(dplx_list),
 610                                          .p = dplx_list }}
 611                 };
 612
 613                 if (num_Duplex > bd) {
 614                         dplx = Duplex[bd];
 615                         e1000_validate_option(&dplx, &opt, adapter);
 616                 } else {
 617                         dplx = opt.def;
 618                 }
 619         }
 620
 621         if ((num_AutoNeg > bd) && (speed != 0 || dplx != 0)) {
 622                 DPRINTK(PROBE, INFO,
 623                        "AutoNeg specified along with Speed or Duplex, "
 624                        "parameter ignored\n");
 625                 adapter->hw.autoneg_advertised = AUTONEG_ADV_DEFAULT;
 626         } else { /* Autoneg */
 627                 static const struct e1000_opt_list an_list[] =
 628                         #define AA "AutoNeg advertising "
 629                         {{ 0x01, AA "10/HD" },
 630                          { 0x02, AA "10/FD" },
 631                          { 0x03, AA "10/FD, 10/HD" },
 632                          { 0x04, AA "100/HD" },
 633                          { 0x05, AA "100/HD, 10/HD" },
 634                          { 0x06, AA "100/HD, 10/FD" },
 635                          { 0x07, AA "100/HD, 10/FD, 10/HD" },
 636                          { 0x08, AA "100/FD" },
 637                          { 0x09, AA "100/FD, 10/HD" },
 638                          { 0x0a, AA "100/FD, 10/FD" },
 639                          { 0x0b, AA "100/FD, 10/FD, 10/HD" },
 640                          { 0x0c, AA "100/FD, 100/HD" },
 641                          { 0x0d, AA "100/FD, 100/HD, 10/HD" },
 642                          { 0x0e, AA "100/FD, 100/HD, 10/FD" },
 643                          { 0x0f, AA "100/FD, 100/HD, 10/FD, 10/HD" },
 644                          { 0x20, AA "1000/FD" },
 645                          { 0x21, AA "1000/FD, 10/HD" },
 646                          { 0x22, AA "1000/FD, 10/FD" },
 647                          { 0x23, AA "1000/FD, 10/FD, 10/HD" },
 648                          { 0x24, AA "1000/FD, 100/HD" },
 649                          { 0x25, AA "1000/FD, 100/HD, 10/HD" },
 650                          { 0x26, AA "1000/FD, 100/HD, 10/FD" },
 651                          { 0x27, AA "1000/FD, 100/HD, 10/FD, 10/HD" },
 652                          { 0x28, AA "1000/FD, 100/FD" },
 653                          { 0x29, AA "1000/FD, 100/FD, 10/HD" },
 654                          { 0x2a, AA "1000/FD, 100/FD, 10/FD" },
 655                          { 0x2b, AA "1000/FD, 100/FD, 10/FD, 10/HD" },
 656                          { 0x2c, AA "1000/FD, 100/FD, 100/HD" },
 657                          { 0x2d, AA "1000/FD, 100/FD, 100/HD, 10/HD" },
 658                          { 0x2e, AA "1000/FD, 100/FD, 100/HD, 10/FD" },
 659                          { 0x2f, AA "1000/FD, 100/FD, 100/HD, 10/FD, 10/HD" }};
 660
 661                 opt = (struct e1000_option) {
 662                         .type = list_option,
 663                         .name = "AutoNeg",
 664                         .err  = "parameter ignored",
 665                         .def  = AUTONEG_ADV_DEFAULT,
 666                         .arg  = { .l = { .nr = ARRAY_SIZE(an_list),
 667                                          .p = an_list }}
 668                 };
 669
 670                 if (num_AutoNeg > bd) {
 671                         an = AutoNeg[bd];
 672                         e1000_validate_option(&an, &opt, adapter);
 673                 } else {
 674                         an = opt.def;
 675                 }
 676                 adapter->hw.autoneg_advertised = an;
 677         }
 678
 679         switch (speed + dplx) {
 680         case 0:
 681                 adapter->hw.autoneg = adapter->fc_autoneg = 1;
 682                 if ((num_Speed > bd) && (speed != 0 || dplx != 0))
 683                         DPRINTK(PROBE, INFO,
 684                                "Speed and duplex autonegotiation enabled\n");
 685                 break;
 686         case HALF_DUPLEX:
 687                 DPRINTK(PROBE, INFO, "Half Duplex specified without Speed\n");
 688                 DPRINTK(PROBE, INFO, "Using Autonegotiation at "
 689                         "Half Duplex only\n");
 690                 adapter->hw.autoneg = adapter->fc_autoneg = 1;
 691                 adapter->hw.autoneg_advertised = ADVERTISE_10_HALF |
 692                                                  ADVERTISE_100_HALF;
 693                 break;
 694         case FULL_DUPLEX:
 695                 DPRINTK(PROBE, INFO, "Full Duplex specified without Speed\n");
 696                 DPRINTK(PROBE, INFO, "Using Autonegotiation at "
 697                         "Full Duplex only\n");
 698                 adapter->hw.autoneg = adapter->fc_autoneg = 1;
 699                 adapter->hw.autoneg_advertised = ADVERTISE_10_FULL |
 700                                                  ADVERTISE_100_FULL |
 701                                                  ADVERTISE_1000_FULL;
 702                 break;
 703         case SPEED_10:
 704                 DPRINTK(PROBE, INFO, "10 Mbps Speed specified "
 705                         "without Duplex\n");
 706                 DPRINTK(PROBE, INFO, "Using Autonegotiation at 10 Mbps only\n");
 707                 adapter->hw.autoneg = adapter->fc_autoneg = 1;
 708                 adapter->hw.autoneg_advertised = ADVERTISE_10_HALF |
 709                                                  ADVERTISE_10_FULL;
 710                 break;
 711         case SPEED_10 + HALF_DUPLEX:
 712                 DPRINTK(PROBE, INFO, "Forcing to 10 Mbps Half Duplex\n");
 713                 adapter->hw.autoneg = adapter->fc_autoneg = 0;
 714                 adapter->hw.forced_speed_duplex = e1000_10_half;
 715                 adapter->hw.autoneg_advertised = 0;
 716                 break;
 717         case SPEED_10 + FULL_DUPLEX:
 718                 DPRINTK(PROBE, INFO, "Forcing to 10 Mbps Full Duplex\n");
 719                 adapter->hw.autoneg = adapter->fc_autoneg = 0;
 720                 adapter->hw.forced_speed_duplex = e1000_10_full;
 721                 adapter->hw.autoneg_advertised = 0;
 722                 break;
 723         case SPEED_100:
 724                 DPRINTK(PROBE, INFO, "100 Mbps Speed specified "
 725                         "without Duplex\n");
 726                 DPRINTK(PROBE, INFO, "Using Autonegotiation at "
 727                         "100 Mbps only\n");
 728                 adapter->hw.autoneg = adapter->fc_autoneg = 1;
 729                 adapter->hw.autoneg_advertised = ADVERTISE_100_HALF |
 730                                                  ADVERTISE_100_FULL;
 731                 break;
 732         case SPEED_100 + HALF_DUPLEX:
 733                 DPRINTK(PROBE, INFO, "Forcing to 100 Mbps Half Duplex\n");
 734                 adapter->hw.autoneg = adapter->fc_autoneg = 0;
 735                 adapter->hw.forced_speed_duplex = e1000_100_half;
 736                 adapter->hw.autoneg_advertised = 0;
 737                 break;
 738         case SPEED_100 + FULL_DUPLEX:
 739                 DPRINTK(PROBE, INFO, "Forcing to 100 Mbps Full Duplex\n");
 740                 adapter->hw.autoneg = adapter->fc_autoneg = 0;
 741                 adapter->hw.forced_speed_duplex = e1000_100_full;
 742                 adapter->hw.autoneg_advertised = 0;
 743                 break;
 744         case SPEED_1000:
 745                 DPRINTK(PROBE, INFO, "1000 Mbps Speed specified without "
 746                         "Duplex\n");
 747                 goto full_duplex_only;
 748         case SPEED_1000 + HALF_DUPLEX:
 749                 DPRINTK(PROBE, INFO,
 750                         "Half Duplex is not supported at 1000 Mbps\n");
 751                 /* fall through */
 752         case SPEED_1000 + FULL_DUPLEX:
 753 full_duplex_only:
 754                 DPRINTK(PROBE, INFO,
 755                        "Using Autonegotiation at 1000 Mbps Full Duplex only\n");
 756                 adapter->hw.autoneg = adapter->fc_autoneg = 1;
 757                 adapter->hw.autoneg_advertised = ADVERTISE_1000_FULL;
 758                 break;
 759         default:
 760                 BUG();
 761         }
 762
 763         /* Speed, AutoNeg and MDI/MDI-X must all play nice */
 764         if (e1000_validate_mdi_setting(&(adapter->hw)) < 0) {
 765                 DPRINTK(PROBE, INFO,
 766                         "Speed, AutoNeg and MDI-X specifications are "
 767                         "incompatible. Setting MDI-X to a compatible value.\n");
 768         }
 769 }
 770