GNU Linux-libre 4.9.330-gnu1
[releases.git] / 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