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1// SPDX-License-Identifier: GPL-2.0
2/* Copyright(c) 1999 - 2006 Intel Corporation. */
3
4#include "e1000.h"
5
6/* This is the only thing that needs to be changed to adjust the
7 * maximum number of ports that the driver can manage.
8 */
9
10#define E1000_MAX_NIC 32
11
12#define OPTION_UNSET -1
13#define OPTION_DISABLED 0
14#define OPTION_ENABLED 1
15
16/* All parameters are treated the same, as an integer array of values.
17 * This macro just reduces the need to repeat the same declaration code
18 * over and over (plus this helps to avoid typo bugs).
19 */
20
21#define E1000_PARAM_INIT { [0 ... E1000_MAX_NIC] = OPTION_UNSET }
22#define E1000_PARAM(X, desc) \
23 static int X[E1000_MAX_NIC+1] = E1000_PARAM_INIT; \
24 static unsigned int num_##X; \
25 module_param_array_named(X, X, int, &num_##X, 0); \
26 MODULE_PARM_DESC(X, desc);
27
28/* Transmit Descriptor Count
29 *
30 * Valid Range: 80-256 for 82542 and 82543 gigabit ethernet controllers
31 * Valid Range: 80-4096 for 82544 and newer
32 *
33 * Default Value: 256
34 */
35E1000_PARAM(TxDescriptors, "Number of transmit descriptors");
36
37/* Receive Descriptor Count
38 *
39 * Valid Range: 80-256 for 82542 and 82543 gigabit ethernet controllers
40 * Valid Range: 80-4096 for 82544 and newer
41 *
42 * Default Value: 256
43 */
44E1000_PARAM(RxDescriptors, "Number of receive descriptors");
45
46/* User Specified Speed Override
47 *
48 * Valid Range: 0, 10, 100, 1000
49 * - 0 - auto-negotiate at all supported speeds
50 * - 10 - only link at 10 Mbps
51 * - 100 - only link at 100 Mbps
52 * - 1000 - only link at 1000 Mbps
53 *
54 * Default Value: 0
55 */
56E1000_PARAM(Speed, "Speed setting");
57
58/* User Specified Duplex Override
59 *
60 * Valid Range: 0-2
61 * - 0 - auto-negotiate for duplex
62 * - 1 - only link at half duplex
63 * - 2 - only link at full duplex
64 *
65 * Default Value: 0
66 */
67E1000_PARAM(Duplex, "Duplex setting");
68
69/* Auto-negotiation Advertisement Override
70 *
71 * Valid Range: 0x01-0x0F, 0x20-0x2F (copper); 0x20 (fiber)
72 *
73 * The AutoNeg value is a bit mask describing which speed and duplex
74 * combinations should be advertised during auto-negotiation.
75 * The supported speed and duplex modes are listed below
76 *
77 * Bit 7 6 5 4 3 2 1 0
78 * Speed (Mbps) N/A N/A 1000 N/A 100 100 10 10
79 * Duplex Full Full Half Full Half
80 *
81 * Default Value: 0x2F (copper); 0x20 (fiber)
82 */
83E1000_PARAM(AutoNeg, "Advertised auto-negotiation setting");
84#define AUTONEG_ADV_DEFAULT 0x2F
85
86/* User Specified Flow Control Override
87 *
88 * Valid Range: 0-3
89 * - 0 - No Flow Control
90 * - 1 - Rx only, respond to PAUSE frames but do not generate them
91 * - 2 - Tx only, generate PAUSE frames but ignore them on receive
92 * - 3 - Full Flow Control Support
93 *
94 * Default Value: Read flow control settings from the EEPROM
95 */
96E1000_PARAM(FlowControl, "Flow Control setting");
97
98/* XsumRX - Receive Checksum Offload Enable/Disable
99 *
100 * Valid Range: 0, 1
101 * - 0 - disables all checksum offload
102 * - 1 - enables receive IP/TCP/UDP checksum offload
103 * on 82543 and newer -based NICs
104 *
105 * Default Value: 1
106 */
107E1000_PARAM(XsumRX, "Disable or enable Receive Checksum offload");
108
109/* Transmit Interrupt Delay in units of 1.024 microseconds
110 * Tx interrupt delay needs to typically be set to something non zero
111 *
112 * Valid Range: 0-65535
113 */
114E1000_PARAM(TxIntDelay, "Transmit Interrupt Delay");
115#define DEFAULT_TIDV 8
116#define MAX_TXDELAY 0xFFFF
117#define MIN_TXDELAY 0
118
119/* Transmit Absolute Interrupt Delay in units of 1.024 microseconds
120 *
121 * Valid Range: 0-65535
122 */
123E1000_PARAM(TxAbsIntDelay, "Transmit Absolute Interrupt Delay");
124#define DEFAULT_TADV 32
125#define MAX_TXABSDELAY 0xFFFF
126#define MIN_TXABSDELAY 0
127
128/* Receive Interrupt Delay in units of 1.024 microseconds
129 * hardware will likely hang if you set this to anything but zero.
130 *
131 * Valid Range: 0-65535
132 */
133E1000_PARAM(RxIntDelay, "Receive Interrupt Delay");
134#define DEFAULT_RDTR 0
135#define MAX_RXDELAY 0xFFFF
136#define MIN_RXDELAY 0
137
138/* Receive Absolute Interrupt Delay in units of 1.024 microseconds
139 *
140 * Valid Range: 0-65535
141 */
142E1000_PARAM(RxAbsIntDelay, "Receive Absolute Interrupt Delay");
143#define DEFAULT_RADV 8
144#define MAX_RXABSDELAY 0xFFFF
145#define MIN_RXABSDELAY 0
146
147/* Interrupt Throttle Rate (interrupts/sec)
148 *
149 * Valid Range: 100-100000 (0=off, 1=dynamic, 3=dynamic conservative)
150 */
151E1000_PARAM(InterruptThrottleRate, "Interrupt Throttling Rate");
152#define DEFAULT_ITR 3
153#define MAX_ITR 100000
154#define MIN_ITR 100
155
156/* Enable Smart Power Down of the PHY
157 *
158 * Valid Range: 0, 1
159 *
160 * Default Value: 0 (disabled)
161 */
162E1000_PARAM(SmartPowerDownEnable, "Enable PHY smart power down");
163
164struct e1000_option {
165 enum { enable_option, range_option, list_option } type;
166 const char *name;
167 const char *err;
168 int def;
169 union {
170 struct { /* range_option info */
171 int min;
172 int max;
173 } r;
174 struct { /* list_option info */
175 int nr;
176 const struct e1000_opt_list { int i; char *str; } *p;
177 } l;
178 } arg;
179};
180
181static int e1000_validate_option(unsigned int *value,
182 const struct e1000_option *opt,
183 struct e1000_adapter *adapter)
184{
185 if (*value == OPTION_UNSET) {
186 *value = opt->def;
187 return 0;
188 }
189
190 switch (opt->type) {
191 case enable_option:
192 switch (*value) {
193 case OPTION_ENABLED:
194 e_dev_info("%s Enabled\n", opt->name);
195 return 0;
196 case OPTION_DISABLED:
197 e_dev_info("%s Disabled\n", opt->name);
198 return 0;
199 }
200 break;
201 case range_option:
202 if (*value >= opt->arg.r.min && *value <= opt->arg.r.max) {
203 e_dev_info("%s set to %i\n", opt->name, *value);
204 return 0;
205 }
206 break;
207 case list_option: {
208 int i;
209 const struct e1000_opt_list *ent;
210
211 for (i = 0; i < opt->arg.l.nr; i++) {
212 ent = &opt->arg.l.p[i];
213 if (*value == ent->i) {
214 if (ent->str[0] != '\0')
215 e_dev_info("%s\n", ent->str);
216 return 0;
217 }
218 }
219 }
220 break;
221 default:
222 BUG();
223 }
224
225 e_dev_info("Invalid %s value specified (%i) %s\n",
226 opt->name, *value, opt->err);
227 *value = opt->def;
228 return -1;
229}
230
231static void e1000_check_fiber_options(struct e1000_adapter *adapter);
232static void e1000_check_copper_options(struct e1000_adapter *adapter);
233
234/**
235 * e1000_check_options - Range Checking for Command Line Parameters
236 * @adapter: board private structure
237 *
238 * This routine checks all command line parameters for valid user
239 * input. If an invalid value is given, or if no user specified
240 * value exists, a default value is used. The final value is stored
241 * in a variable in the adapter structure.
242 **/
243void e1000_check_options(struct e1000_adapter *adapter)
244{
245 struct e1000_option opt;
246 int bd = adapter->bd_number;
247
248 if (bd >= E1000_MAX_NIC) {
249 e_dev_warn("Warning: no configuration for board #%i "
250 "using defaults for all values\n", bd);
251 }
252
253 { /* Transmit Descriptor Count */
254 struct e1000_tx_ring *tx_ring = adapter->tx_ring;
255 int i;
256 e1000_mac_type mac_type = adapter->hw.mac_type;
257
258 opt = (struct e1000_option) {
259 .type = range_option,
260 .name = "Transmit Descriptors",
261 .err = "using default of "
262 __MODULE_STRING(E1000_DEFAULT_TXD),
263 .def = E1000_DEFAULT_TXD,
264 .arg = { .r = {
265 .min = E1000_MIN_TXD,
266 .max = mac_type < e1000_82544 ? E1000_MAX_TXD : E1000_MAX_82544_TXD
267 }}
268 };
269
270 if (num_TxDescriptors > bd) {
271 tx_ring->count = TxDescriptors[bd];
272 e1000_validate_option(&tx_ring->count, &opt, adapter);
273 tx_ring->count = ALIGN(tx_ring->count,
274 REQ_TX_DESCRIPTOR_MULTIPLE);
275 } else {
276 tx_ring->count = opt.def;
277 }
278 for (i = 0; i < adapter->num_tx_queues; i++)
279 tx_ring[i].count = tx_ring->count;
280 }
281 { /* Receive Descriptor Count */
282 struct e1000_rx_ring *rx_ring = adapter->rx_ring;
283 int i;
284 e1000_mac_type mac_type = adapter->hw.mac_type;
285
286 opt = (struct e1000_option) {
287 .type = range_option,
288 .name = "Receive Descriptors",
289 .err = "using default of "
290 __MODULE_STRING(E1000_DEFAULT_RXD),
291 .def = E1000_DEFAULT_RXD,
292 .arg = { .r = {
293 .min = E1000_MIN_RXD,
294 .max = mac_type < e1000_82544 ? E1000_MAX_RXD :
295 E1000_MAX_82544_RXD
296 }}
297 };
298
299 if (num_RxDescriptors > bd) {
300 rx_ring->count = RxDescriptors[bd];
301 e1000_validate_option(&rx_ring->count, &opt, adapter);
302 rx_ring->count = ALIGN(rx_ring->count,
303 REQ_RX_DESCRIPTOR_MULTIPLE);
304 } else {
305 rx_ring->count = opt.def;
306 }
307 for (i = 0; i < adapter->num_rx_queues; i++)
308 rx_ring[i].count = rx_ring->count;
309 }
310 { /* Checksum Offload Enable/Disable */
311 opt = (struct e1000_option) {
312 .type = enable_option,
313 .name = "Checksum Offload",
314 .err = "defaulting to Enabled",
315 .def = OPTION_ENABLED
316 };
317
318 if (num_XsumRX > bd) {
319 unsigned int rx_csum = XsumRX[bd];
320 e1000_validate_option(&rx_csum, &opt, adapter);
321 adapter->rx_csum = rx_csum;
322 } else {
323 adapter->rx_csum = opt.def;
324 }
325 }
326 { /* Flow Control */
327
328 static const struct e1000_opt_list fc_list[] = {
329 { E1000_FC_NONE, "Flow Control Disabled" },
330 { E1000_FC_RX_PAUSE, "Flow Control Receive Only" },
331 { E1000_FC_TX_PAUSE, "Flow Control Transmit Only" },
332 { E1000_FC_FULL, "Flow Control Enabled" },
333 { E1000_FC_DEFAULT, "Flow Control Hardware Default" }
334 };
335
336 opt = (struct e1000_option) {
337 .type = list_option,
338 .name = "Flow Control",
339 .err = "reading default settings from EEPROM",
340 .def = E1000_FC_DEFAULT,
341 .arg = { .l = { .nr = ARRAY_SIZE(fc_list),
342 .p = fc_list }}
343 };
344
345 if (num_FlowControl > bd) {
346 unsigned int fc = FlowControl[bd];
347 e1000_validate_option(&fc, &opt, adapter);
348 adapter->hw.fc = adapter->hw.original_fc = fc;
349 } else {
350 adapter->hw.fc = adapter->hw.original_fc = opt.def;
351 }
352 }
353 { /* Transmit Interrupt Delay */
354 opt = (struct e1000_option) {
355 .type = range_option,
356 .name = "Transmit Interrupt Delay",
357 .err = "using default of " __MODULE_STRING(DEFAULT_TIDV),
358 .def = DEFAULT_TIDV,
359 .arg = { .r = { .min = MIN_TXDELAY,
360 .max = MAX_TXDELAY }}
361 };
362
363 if (num_TxIntDelay > bd) {
364 adapter->tx_int_delay = TxIntDelay[bd];
365 e1000_validate_option(&adapter->tx_int_delay, &opt,
366 adapter);
367 } else {
368 adapter->tx_int_delay = opt.def;
369 }
370 }
371 { /* Transmit Absolute Interrupt Delay */
372 opt = (struct e1000_option) {
373 .type = range_option,
374 .name = "Transmit Absolute Interrupt Delay",
375 .err = "using default of " __MODULE_STRING(DEFAULT_TADV),
376 .def = DEFAULT_TADV,
377 .arg = { .r = { .min = MIN_TXABSDELAY,
378 .max = MAX_TXABSDELAY }}
379 };
380
381 if (num_TxAbsIntDelay > bd) {
382 adapter->tx_abs_int_delay = TxAbsIntDelay[bd];
383 e1000_validate_option(&adapter->tx_abs_int_delay, &opt,
384 adapter);
385 } else {
386 adapter->tx_abs_int_delay = opt.def;
387 }
388 }
389 { /* Receive Interrupt Delay */
390 opt = (struct e1000_option) {
391 .type = range_option,
392 .name = "Receive Interrupt Delay",
393 .err = "using default of " __MODULE_STRING(DEFAULT_RDTR),
394 .def = DEFAULT_RDTR,
395 .arg = { .r = { .min = MIN_RXDELAY,
396 .max = MAX_RXDELAY }}
397 };
398
399 if (num_RxIntDelay > bd) {
400 adapter->rx_int_delay = RxIntDelay[bd];
401 e1000_validate_option(&adapter->rx_int_delay, &opt,
402 adapter);
403 } else {
404 adapter->rx_int_delay = opt.def;
405 }
406 }
407 { /* Receive Absolute Interrupt Delay */
408 opt = (struct e1000_option) {
409 .type = range_option,
410 .name = "Receive Absolute Interrupt Delay",
411 .err = "using default of " __MODULE_STRING(DEFAULT_RADV),
412 .def = DEFAULT_RADV,
413 .arg = { .r = { .min = MIN_RXABSDELAY,
414 .max = MAX_RXABSDELAY }}
415 };
416
417 if (num_RxAbsIntDelay > bd) {
418 adapter->rx_abs_int_delay = RxAbsIntDelay[bd];
419 e1000_validate_option(&adapter->rx_abs_int_delay, &opt,
420 adapter);
421 } else {
422 adapter->rx_abs_int_delay = opt.def;
423 }
424 }
425 { /* Interrupt Throttling Rate */
426 opt = (struct e1000_option) {
427 .type = range_option,
428 .name = "Interrupt Throttling Rate (ints/sec)",
429 .err = "using default of " __MODULE_STRING(DEFAULT_ITR),
430 .def = DEFAULT_ITR,
431 .arg = { .r = { .min = MIN_ITR,
432 .max = MAX_ITR }}
433 };
434
435 if (num_InterruptThrottleRate > bd) {
436 adapter->itr = InterruptThrottleRate[bd];
437 switch (adapter->itr) {
438 case 0:
439 e_dev_info("%s turned off\n", opt.name);
440 break;
441 case 1:
442 e_dev_info("%s set to dynamic mode\n",
443 opt.name);
444 adapter->itr_setting = adapter->itr;
445 adapter->itr = 20000;
446 break;
447 case 3:
448 e_dev_info("%s set to dynamic conservative "
449 "mode\n", opt.name);
450 adapter->itr_setting = adapter->itr;
451 adapter->itr = 20000;
452 break;
453 case 4:
454 e_dev_info("%s set to simplified "
455 "(2000-8000) ints mode\n", opt.name);
456 adapter->itr_setting = adapter->itr;
457 break;
458 default:
459 e1000_validate_option(&adapter->itr, &opt,
460 adapter);
461 /* save the setting, because the dynamic bits
462 * change itr.
463 * clear the lower two bits because they are
464 * used as control
465 */
466 adapter->itr_setting = adapter->itr & ~3;
467 break;
468 }
469 } else {
470 adapter->itr_setting = opt.def;
471 adapter->itr = 20000;
472 }
473 }
474 { /* Smart Power Down */
475 opt = (struct e1000_option) {
476 .type = enable_option,
477 .name = "PHY Smart Power Down",
478 .err = "defaulting to Disabled",
479 .def = OPTION_DISABLED
480 };
481
482 if (num_SmartPowerDownEnable > bd) {
483 unsigned int spd = SmartPowerDownEnable[bd];
484 e1000_validate_option(&spd, &opt, adapter);
485 adapter->smart_power_down = spd;
486 } else {
487 adapter->smart_power_down = opt.def;
488 }
489 }
490
491 switch (adapter->hw.media_type) {
492 case e1000_media_type_fiber:
493 case e1000_media_type_internal_serdes:
494 e1000_check_fiber_options(adapter);
495 break;
496 case e1000_media_type_copper:
497 e1000_check_copper_options(adapter);
498 break;
499 default:
500 BUG();
501 }
502}
503
504/**
505 * e1000_check_fiber_options - Range Checking for Link Options, Fiber Version
506 * @adapter: board private structure
507 *
508 * Handles speed and duplex options on fiber adapters
509 **/
510static void e1000_check_fiber_options(struct e1000_adapter *adapter)
511{
512 int bd = adapter->bd_number;
513 if (num_Speed > bd) {
514 e_dev_info("Speed not valid for fiber adapters, parameter "
515 "ignored\n");
516 }
517
518 if (num_Duplex > bd) {
519 e_dev_info("Duplex not valid for fiber adapters, parameter "
520 "ignored\n");
521 }
522
523 if ((num_AutoNeg > bd) && (AutoNeg[bd] != 0x20)) {
524 e_dev_info("AutoNeg other than 1000/Full is not valid for fiber"
525 "adapters, parameter ignored\n");
526 }
527}
528
529/**
530 * e1000_check_copper_options - Range Checking for Link Options, Copper Version
531 * @adapter: board private structure
532 *
533 * Handles speed and duplex options on copper adapters
534 **/
535static void e1000_check_copper_options(struct e1000_adapter *adapter)
536{
537 struct e1000_option opt;
538 unsigned int speed, dplx, an;
539 int bd = adapter->bd_number;
540
541 { /* Speed */
542 static const struct e1000_opt_list speed_list[] = {
543 { 0, "" },
544 { SPEED_10, "" },
545 { SPEED_100, "" },
546 { SPEED_1000, "" }};
547
548 opt = (struct e1000_option) {
549 .type = list_option,
550 .name = "Speed",
551 .err = "parameter ignored",
552 .def = 0,
553 .arg = { .l = { .nr = ARRAY_SIZE(speed_list),
554 .p = speed_list }}
555 };
556
557 if (num_Speed > bd) {
558 speed = Speed[bd];
559 e1000_validate_option(&speed, &opt, adapter);
560 } else {
561 speed = opt.def;
562 }
563 }
564 { /* Duplex */
565 static const struct e1000_opt_list dplx_list[] = {
566 { 0, "" },
567 { HALF_DUPLEX, "" },
568 { FULL_DUPLEX, "" }};
569
570 opt = (struct e1000_option) {
571 .type = list_option,
572 .name = "Duplex",
573 .err = "parameter ignored",
574 .def = 0,
575 .arg = { .l = { .nr = ARRAY_SIZE(dplx_list),
576 .p = dplx_list }}
577 };
578
579 if (num_Duplex > bd) {
580 dplx = Duplex[bd];
581 e1000_validate_option(&dplx, &opt, adapter);
582 } else {
583 dplx = opt.def;
584 }
585 }
586
587 if ((num_AutoNeg > bd) && (speed != 0 || dplx != 0)) {
588 e_dev_info("AutoNeg specified along with Speed or Duplex, "
589 "parameter ignored\n");
590 adapter->hw.autoneg_advertised = AUTONEG_ADV_DEFAULT;
591 } else { /* Autoneg */
592 static const struct e1000_opt_list an_list[] =
593 #define AA "AutoNeg advertising "
594 {{ 0x01, AA "10/HD" },
595 { 0x02, AA "10/FD" },
596 { 0x03, AA "10/FD, 10/HD" },
597 { 0x04, AA "100/HD" },
598 { 0x05, AA "100/HD, 10/HD" },
599 { 0x06, AA "100/HD, 10/FD" },
600 { 0x07, AA "100/HD, 10/FD, 10/HD" },
601 { 0x08, AA "100/FD" },
602 { 0x09, AA "100/FD, 10/HD" },
603 { 0x0a, AA "100/FD, 10/FD" },
604 { 0x0b, AA "100/FD, 10/FD, 10/HD" },
605 { 0x0c, AA "100/FD, 100/HD" },
606 { 0x0d, AA "100/FD, 100/HD, 10/HD" },
607 { 0x0e, AA "100/FD, 100/HD, 10/FD" },
608 { 0x0f, AA "100/FD, 100/HD, 10/FD, 10/HD" },
609 { 0x20, AA "1000/FD" },
610 { 0x21, AA "1000/FD, 10/HD" },
611 { 0x22, AA "1000/FD, 10/FD" },
612 { 0x23, AA "1000/FD, 10/FD, 10/HD" },
613 { 0x24, AA "1000/FD, 100/HD" },
614 { 0x25, AA "1000/FD, 100/HD, 10/HD" },
615 { 0x26, AA "1000/FD, 100/HD, 10/FD" },
616 { 0x27, AA "1000/FD, 100/HD, 10/FD, 10/HD" },
617 { 0x28, AA "1000/FD, 100/FD" },
618 { 0x29, AA "1000/FD, 100/FD, 10/HD" },
619 { 0x2a, AA "1000/FD, 100/FD, 10/FD" },
620 { 0x2b, AA "1000/FD, 100/FD, 10/FD, 10/HD" },
621 { 0x2c, AA "1000/FD, 100/FD, 100/HD" },
622 { 0x2d, AA "1000/FD, 100/FD, 100/HD, 10/HD" },
623 { 0x2e, AA "1000/FD, 100/FD, 100/HD, 10/FD" },
624 { 0x2f, AA "1000/FD, 100/FD, 100/HD, 10/FD, 10/HD" }};
625
626 opt = (struct e1000_option) {
627 .type = list_option,
628 .name = "AutoNeg",
629 .err = "parameter ignored",
630 .def = AUTONEG_ADV_DEFAULT,
631 .arg = { .l = { .nr = ARRAY_SIZE(an_list),
632 .p = an_list }}
633 };
634
635 if (num_AutoNeg > bd) {
636 an = AutoNeg[bd];
637 e1000_validate_option(&an, &opt, adapter);
638 } else {
639 an = opt.def;
640 }
641 adapter->hw.autoneg_advertised = an;
642 }
643
644 switch (speed + dplx) {
645 case 0:
646 adapter->hw.autoneg = adapter->fc_autoneg = 1;
647 if ((num_Speed > bd) && (speed != 0 || dplx != 0))
648 e_dev_info("Speed and duplex autonegotiation "
649 "enabled\n");
650 break;
651 case HALF_DUPLEX:
652 e_dev_info("Half Duplex specified without Speed\n");
653 e_dev_info("Using Autonegotiation at Half Duplex only\n");
654 adapter->hw.autoneg = adapter->fc_autoneg = 1;
655 adapter->hw.autoneg_advertised = ADVERTISE_10_HALF |
656 ADVERTISE_100_HALF;
657 break;
658 case FULL_DUPLEX:
659 e_dev_info("Full Duplex specified without Speed\n");
660 e_dev_info("Using Autonegotiation at Full Duplex only\n");
661 adapter->hw.autoneg = adapter->fc_autoneg = 1;
662 adapter->hw.autoneg_advertised = ADVERTISE_10_FULL |
663 ADVERTISE_100_FULL |
664 ADVERTISE_1000_FULL;
665 break;
666 case SPEED_10:
667 e_dev_info("10 Mbps Speed specified without Duplex\n");
668 e_dev_info("Using Autonegotiation at 10 Mbps only\n");
669 adapter->hw.autoneg = adapter->fc_autoneg = 1;
670 adapter->hw.autoneg_advertised = ADVERTISE_10_HALF |
671 ADVERTISE_10_FULL;
672 break;
673 case SPEED_10 + HALF_DUPLEX:
674 e_dev_info("Forcing to 10 Mbps Half Duplex\n");
675 adapter->hw.autoneg = adapter->fc_autoneg = 0;
676 adapter->hw.forced_speed_duplex = e1000_10_half;
677 adapter->hw.autoneg_advertised = 0;
678 break;
679 case SPEED_10 + FULL_DUPLEX:
680 e_dev_info("Forcing to 10 Mbps Full Duplex\n");
681 adapter->hw.autoneg = adapter->fc_autoneg = 0;
682 adapter->hw.forced_speed_duplex = e1000_10_full;
683 adapter->hw.autoneg_advertised = 0;
684 break;
685 case SPEED_100:
686 e_dev_info("100 Mbps Speed specified without Duplex\n");
687 e_dev_info("Using Autonegotiation at 100 Mbps only\n");
688 adapter->hw.autoneg = adapter->fc_autoneg = 1;
689 adapter->hw.autoneg_advertised = ADVERTISE_100_HALF |
690 ADVERTISE_100_FULL;
691 break;
692 case SPEED_100 + HALF_DUPLEX:
693 e_dev_info("Forcing to 100 Mbps Half Duplex\n");
694 adapter->hw.autoneg = adapter->fc_autoneg = 0;
695 adapter->hw.forced_speed_duplex = e1000_100_half;
696 adapter->hw.autoneg_advertised = 0;
697 break;
698 case SPEED_100 + FULL_DUPLEX:
699 e_dev_info("Forcing to 100 Mbps Full Duplex\n");
700 adapter->hw.autoneg = adapter->fc_autoneg = 0;
701 adapter->hw.forced_speed_duplex = e1000_100_full;
702 adapter->hw.autoneg_advertised = 0;
703 break;
704 case SPEED_1000:
705 e_dev_info("1000 Mbps Speed specified without Duplex\n");
706 goto full_duplex_only;
707 case SPEED_1000 + HALF_DUPLEX:
708 e_dev_info("Half Duplex is not supported at 1000 Mbps\n");
709 fallthrough;
710 case SPEED_1000 + FULL_DUPLEX:
711full_duplex_only:
712 e_dev_info("Using Autonegotiation at 1000 Mbps Full Duplex "
713 "only\n");
714 adapter->hw.autoneg = adapter->fc_autoneg = 1;
715 adapter->hw.autoneg_advertised = ADVERTISE_1000_FULL;
716 break;
717 default:
718 BUG();
719 }
720
721 /* Speed, AutoNeg and MDI/MDI-X must all play nice */
722 if (e1000_validate_mdi_setting(&(adapter->hw)) < 0) {
723 e_dev_info("Speed, AutoNeg and MDI-X specs are incompatible. "
724 "Setting MDI-X to a compatible value.\n");
725 }
726}
727
1// SPDX-License-Identifier: GPL-2.0
2/* Copyright(c) 1999 - 2006 Intel Corporation. */
3
4#include "e1000.h"
5
6/* This is the only thing that needs to be changed to adjust the
7 * maximum number of ports that the driver can manage.
8 */
9
10#define E1000_MAX_NIC 32
11
12#define OPTION_UNSET -1
13#define OPTION_DISABLED 0
14#define OPTION_ENABLED 1
15
16/* All parameters are treated the same, as an integer array of values.
17 * This macro just reduces the need to repeat the same declaration code
18 * over and over (plus this helps to avoid typo bugs).
19 */
20
21#define E1000_PARAM_INIT { [0 ... E1000_MAX_NIC] = OPTION_UNSET }
22#define E1000_PARAM(X, desc) \
23 static int X[E1000_MAX_NIC+1] = E1000_PARAM_INIT; \
24 static unsigned int num_##X; \
25 module_param_array_named(X, X, int, &num_##X, 0); \
26 MODULE_PARM_DESC(X, desc);
27
28/* Transmit Descriptor Count
29 *
30 * Valid Range: 80-256 for 82542 and 82543 gigabit ethernet controllers
31 * Valid Range: 80-4096 for 82544 and newer
32 *
33 * Default Value: 256
34 */
35E1000_PARAM(TxDescriptors, "Number of transmit descriptors");
36
37/* Receive Descriptor Count
38 *
39 * Valid Range: 80-256 for 82542 and 82543 gigabit ethernet controllers
40 * Valid Range: 80-4096 for 82544 and newer
41 *
42 * Default Value: 256
43 */
44E1000_PARAM(RxDescriptors, "Number of receive descriptors");
45
46/* User Specified Speed Override
47 *
48 * Valid Range: 0, 10, 100, 1000
49 * - 0 - auto-negotiate at all supported speeds
50 * - 10 - only link at 10 Mbps
51 * - 100 - only link at 100 Mbps
52 * - 1000 - only link at 1000 Mbps
53 *
54 * Default Value: 0
55 */
56E1000_PARAM(Speed, "Speed setting");
57
58/* User Specified Duplex Override
59 *
60 * Valid Range: 0-2
61 * - 0 - auto-negotiate for duplex
62 * - 1 - only link at half duplex
63 * - 2 - only link at full duplex
64 *
65 * Default Value: 0
66 */
67E1000_PARAM(Duplex, "Duplex setting");
68
69/* Auto-negotiation Advertisement Override
70 *
71 * Valid Range: 0x01-0x0F, 0x20-0x2F (copper); 0x20 (fiber)
72 *
73 * The AutoNeg value is a bit mask describing which speed and duplex
74 * combinations should be advertised during auto-negotiation.
75 * The supported speed and duplex modes are listed below
76 *
77 * Bit 7 6 5 4 3 2 1 0
78 * Speed (Mbps) N/A N/A 1000 N/A 100 100 10 10
79 * Duplex Full Full Half Full Half
80 *
81 * Default Value: 0x2F (copper); 0x20 (fiber)
82 */
83E1000_PARAM(AutoNeg, "Advertised auto-negotiation setting");
84#define AUTONEG_ADV_DEFAULT 0x2F
85#define AUTONEG_ADV_MASK 0x2F
86
87/* User Specified Flow Control Override
88 *
89 * Valid Range: 0-3
90 * - 0 - No Flow Control
91 * - 1 - Rx only, respond to PAUSE frames but do not generate them
92 * - 2 - Tx only, generate PAUSE frames but ignore them on receive
93 * - 3 - Full Flow Control Support
94 *
95 * Default Value: Read flow control settings from the EEPROM
96 */
97E1000_PARAM(FlowControl, "Flow Control setting");
98#define FLOW_CONTROL_DEFAULT FLOW_CONTROL_FULL
99
100/* XsumRX - Receive Checksum Offload Enable/Disable
101 *
102 * Valid Range: 0, 1
103 * - 0 - disables all checksum offload
104 * - 1 - enables receive IP/TCP/UDP checksum offload
105 * on 82543 and newer -based NICs
106 *
107 * Default Value: 1
108 */
109E1000_PARAM(XsumRX, "Disable or enable Receive Checksum offload");
110
111/* Transmit Interrupt Delay in units of 1.024 microseconds
112 * Tx interrupt delay needs to typically be set to something non zero
113 *
114 * Valid Range: 0-65535
115 */
116E1000_PARAM(TxIntDelay, "Transmit Interrupt Delay");
117#define DEFAULT_TIDV 8
118#define MAX_TXDELAY 0xFFFF
119#define MIN_TXDELAY 0
120
121/* Transmit Absolute Interrupt Delay in units of 1.024 microseconds
122 *
123 * Valid Range: 0-65535
124 */
125E1000_PARAM(TxAbsIntDelay, "Transmit Absolute Interrupt Delay");
126#define DEFAULT_TADV 32
127#define MAX_TXABSDELAY 0xFFFF
128#define MIN_TXABSDELAY 0
129
130/* Receive Interrupt Delay in units of 1.024 microseconds
131 * hardware will likely hang if you set this to anything but zero.
132 *
133 * Valid Range: 0-65535
134 */
135E1000_PARAM(RxIntDelay, "Receive Interrupt Delay");
136#define DEFAULT_RDTR 0
137#define MAX_RXDELAY 0xFFFF
138#define MIN_RXDELAY 0
139
140/* Receive Absolute Interrupt Delay in units of 1.024 microseconds
141 *
142 * Valid Range: 0-65535
143 */
144E1000_PARAM(RxAbsIntDelay, "Receive Absolute Interrupt Delay");
145#define DEFAULT_RADV 8
146#define MAX_RXABSDELAY 0xFFFF
147#define MIN_RXABSDELAY 0
148
149/* Interrupt Throttle Rate (interrupts/sec)
150 *
151 * Valid Range: 100-100000 (0=off, 1=dynamic, 3=dynamic conservative)
152 */
153E1000_PARAM(InterruptThrottleRate, "Interrupt Throttling Rate");
154#define DEFAULT_ITR 3
155#define MAX_ITR 100000
156#define MIN_ITR 100
157
158/* Enable Smart Power Down of the PHY
159 *
160 * Valid Range: 0, 1
161 *
162 * Default Value: 0 (disabled)
163 */
164E1000_PARAM(SmartPowerDownEnable, "Enable PHY smart power down");
165
166struct e1000_option {
167 enum { enable_option, range_option, list_option } type;
168 const char *name;
169 const char *err;
170 int def;
171 union {
172 struct { /* range_option info */
173 int min;
174 int max;
175 } r;
176 struct { /* list_option info */
177 int nr;
178 const struct e1000_opt_list { int i; char *str; } *p;
179 } l;
180 } arg;
181};
182
183static int e1000_validate_option(unsigned int *value,
184 const struct e1000_option *opt,
185 struct e1000_adapter *adapter)
186{
187 if (*value == OPTION_UNSET) {
188 *value = opt->def;
189 return 0;
190 }
191
192 switch (opt->type) {
193 case enable_option:
194 switch (*value) {
195 case OPTION_ENABLED:
196 e_dev_info("%s Enabled\n", opt->name);
197 return 0;
198 case OPTION_DISABLED:
199 e_dev_info("%s Disabled\n", opt->name);
200 return 0;
201 }
202 break;
203 case range_option:
204 if (*value >= opt->arg.r.min && *value <= opt->arg.r.max) {
205 e_dev_info("%s set to %i\n", opt->name, *value);
206 return 0;
207 }
208 break;
209 case list_option: {
210 int i;
211 const struct e1000_opt_list *ent;
212
213 for (i = 0; i < opt->arg.l.nr; i++) {
214 ent = &opt->arg.l.p[i];
215 if (*value == ent->i) {
216 if (ent->str[0] != '\0')
217 e_dev_info("%s\n", ent->str);
218 return 0;
219 }
220 }
221 }
222 break;
223 default:
224 BUG();
225 }
226
227 e_dev_info("Invalid %s value specified (%i) %s\n",
228 opt->name, *value, opt->err);
229 *value = opt->def;
230 return -1;
231}
232
233static void e1000_check_fiber_options(struct e1000_adapter *adapter);
234static void e1000_check_copper_options(struct e1000_adapter *adapter);
235
236/**
237 * e1000_check_options - Range Checking for Command Line Parameters
238 * @adapter: board private structure
239 *
240 * This routine checks all command line parameters for valid user
241 * input. If an invalid value is given, or if no user specified
242 * value exists, a default value is used. The final value is stored
243 * in a variable in the adapter structure.
244 **/
245void e1000_check_options(struct e1000_adapter *adapter)
246{
247 struct e1000_option opt;
248 int bd = adapter->bd_number;
249
250 if (bd >= E1000_MAX_NIC) {
251 e_dev_warn("Warning: no configuration for board #%i "
252 "using defaults for all values\n", bd);
253 }
254
255 { /* Transmit Descriptor Count */
256 struct e1000_tx_ring *tx_ring = adapter->tx_ring;
257 int i;
258 e1000_mac_type mac_type = adapter->hw.mac_type;
259
260 opt = (struct e1000_option) {
261 .type = range_option,
262 .name = "Transmit Descriptors",
263 .err = "using default of "
264 __MODULE_STRING(E1000_DEFAULT_TXD),
265 .def = E1000_DEFAULT_TXD,
266 .arg = { .r = {
267 .min = E1000_MIN_TXD,
268 .max = mac_type < e1000_82544 ? E1000_MAX_TXD : E1000_MAX_82544_TXD
269 }}
270 };
271
272 if (num_TxDescriptors > bd) {
273 tx_ring->count = TxDescriptors[bd];
274 e1000_validate_option(&tx_ring->count, &opt, adapter);
275 tx_ring->count = ALIGN(tx_ring->count,
276 REQ_TX_DESCRIPTOR_MULTIPLE);
277 } else {
278 tx_ring->count = opt.def;
279 }
280 for (i = 0; i < adapter->num_tx_queues; i++)
281 tx_ring[i].count = tx_ring->count;
282 }
283 { /* Receive Descriptor Count */
284 struct e1000_rx_ring *rx_ring = adapter->rx_ring;
285 int i;
286 e1000_mac_type mac_type = adapter->hw.mac_type;
287
288 opt = (struct e1000_option) {
289 .type = range_option,
290 .name = "Receive Descriptors",
291 .err = "using default of "
292 __MODULE_STRING(E1000_DEFAULT_RXD),
293 .def = E1000_DEFAULT_RXD,
294 .arg = { .r = {
295 .min = E1000_MIN_RXD,
296 .max = mac_type < e1000_82544 ? E1000_MAX_RXD :
297 E1000_MAX_82544_RXD
298 }}
299 };
300
301 if (num_RxDescriptors > bd) {
302 rx_ring->count = RxDescriptors[bd];
303 e1000_validate_option(&rx_ring->count, &opt, adapter);
304 rx_ring->count = ALIGN(rx_ring->count,
305 REQ_RX_DESCRIPTOR_MULTIPLE);
306 } else {
307 rx_ring->count = opt.def;
308 }
309 for (i = 0; i < adapter->num_rx_queues; i++)
310 rx_ring[i].count = rx_ring->count;
311 }
312 { /* Checksum Offload Enable/Disable */
313 opt = (struct e1000_option) {
314 .type = enable_option,
315 .name = "Checksum Offload",
316 .err = "defaulting to Enabled",
317 .def = OPTION_ENABLED
318 };
319
320 if (num_XsumRX > bd) {
321 unsigned int rx_csum = XsumRX[bd];
322 e1000_validate_option(&rx_csum, &opt, adapter);
323 adapter->rx_csum = rx_csum;
324 } else {
325 adapter->rx_csum = opt.def;
326 }
327 }
328 { /* Flow Control */
329
330 static const struct e1000_opt_list fc_list[] = {
331 { E1000_FC_NONE, "Flow Control Disabled" },
332 { E1000_FC_RX_PAUSE, "Flow Control Receive Only" },
333 { E1000_FC_TX_PAUSE, "Flow Control Transmit Only" },
334 { E1000_FC_FULL, "Flow Control Enabled" },
335 { E1000_FC_DEFAULT, "Flow Control Hardware Default" }
336 };
337
338 opt = (struct e1000_option) {
339 .type = list_option,
340 .name = "Flow Control",
341 .err = "reading default settings from EEPROM",
342 .def = E1000_FC_DEFAULT,
343 .arg = { .l = { .nr = ARRAY_SIZE(fc_list),
344 .p = fc_list }}
345 };
346
347 if (num_FlowControl > bd) {
348 unsigned int fc = FlowControl[bd];
349 e1000_validate_option(&fc, &opt, adapter);
350 adapter->hw.fc = adapter->hw.original_fc = fc;
351 } else {
352 adapter->hw.fc = adapter->hw.original_fc = opt.def;
353 }
354 }
355 { /* Transmit Interrupt Delay */
356 opt = (struct e1000_option) {
357 .type = range_option,
358 .name = "Transmit Interrupt Delay",
359 .err = "using default of " __MODULE_STRING(DEFAULT_TIDV),
360 .def = DEFAULT_TIDV,
361 .arg = { .r = { .min = MIN_TXDELAY,
362 .max = MAX_TXDELAY }}
363 };
364
365 if (num_TxIntDelay > bd) {
366 adapter->tx_int_delay = TxIntDelay[bd];
367 e1000_validate_option(&adapter->tx_int_delay, &opt,
368 adapter);
369 } else {
370 adapter->tx_int_delay = opt.def;
371 }
372 }
373 { /* Transmit Absolute Interrupt Delay */
374 opt = (struct e1000_option) {
375 .type = range_option,
376 .name = "Transmit Absolute Interrupt Delay",
377 .err = "using default of " __MODULE_STRING(DEFAULT_TADV),
378 .def = DEFAULT_TADV,
379 .arg = { .r = { .min = MIN_TXABSDELAY,
380 .max = MAX_TXABSDELAY }}
381 };
382
383 if (num_TxAbsIntDelay > bd) {
384 adapter->tx_abs_int_delay = TxAbsIntDelay[bd];
385 e1000_validate_option(&adapter->tx_abs_int_delay, &opt,
386 adapter);
387 } else {
388 adapter->tx_abs_int_delay = opt.def;
389 }
390 }
391 { /* Receive Interrupt Delay */
392 opt = (struct e1000_option) {
393 .type = range_option,
394 .name = "Receive Interrupt Delay",
395 .err = "using default of " __MODULE_STRING(DEFAULT_RDTR),
396 .def = DEFAULT_RDTR,
397 .arg = { .r = { .min = MIN_RXDELAY,
398 .max = MAX_RXDELAY }}
399 };
400
401 if (num_RxIntDelay > bd) {
402 adapter->rx_int_delay = RxIntDelay[bd];
403 e1000_validate_option(&adapter->rx_int_delay, &opt,
404 adapter);
405 } else {
406 adapter->rx_int_delay = opt.def;
407 }
408 }
409 { /* Receive Absolute Interrupt Delay */
410 opt = (struct e1000_option) {
411 .type = range_option,
412 .name = "Receive Absolute Interrupt Delay",
413 .err = "using default of " __MODULE_STRING(DEFAULT_RADV),
414 .def = DEFAULT_RADV,
415 .arg = { .r = { .min = MIN_RXABSDELAY,
416 .max = MAX_RXABSDELAY }}
417 };
418
419 if (num_RxAbsIntDelay > bd) {
420 adapter->rx_abs_int_delay = RxAbsIntDelay[bd];
421 e1000_validate_option(&adapter->rx_abs_int_delay, &opt,
422 adapter);
423 } else {
424 adapter->rx_abs_int_delay = opt.def;
425 }
426 }
427 { /* Interrupt Throttling Rate */
428 opt = (struct e1000_option) {
429 .type = range_option,
430 .name = "Interrupt Throttling Rate (ints/sec)",
431 .err = "using default of " __MODULE_STRING(DEFAULT_ITR),
432 .def = DEFAULT_ITR,
433 .arg = { .r = { .min = MIN_ITR,
434 .max = MAX_ITR }}
435 };
436
437 if (num_InterruptThrottleRate > bd) {
438 adapter->itr = InterruptThrottleRate[bd];
439 switch (adapter->itr) {
440 case 0:
441 e_dev_info("%s turned off\n", opt.name);
442 break;
443 case 1:
444 e_dev_info("%s set to dynamic mode\n",
445 opt.name);
446 adapter->itr_setting = adapter->itr;
447 adapter->itr = 20000;
448 break;
449 case 3:
450 e_dev_info("%s set to dynamic conservative "
451 "mode\n", opt.name);
452 adapter->itr_setting = adapter->itr;
453 adapter->itr = 20000;
454 break;
455 case 4:
456 e_dev_info("%s set to simplified "
457 "(2000-8000) ints mode\n", opt.name);
458 adapter->itr_setting = adapter->itr;
459 break;
460 default:
461 e1000_validate_option(&adapter->itr, &opt,
462 adapter);
463 /* save the setting, because the dynamic bits
464 * change itr.
465 * clear the lower two bits because they are
466 * used as control
467 */
468 adapter->itr_setting = adapter->itr & ~3;
469 break;
470 }
471 } else {
472 adapter->itr_setting = opt.def;
473 adapter->itr = 20000;
474 }
475 }
476 { /* Smart Power Down */
477 opt = (struct e1000_option) {
478 .type = enable_option,
479 .name = "PHY Smart Power Down",
480 .err = "defaulting to Disabled",
481 .def = OPTION_DISABLED
482 };
483
484 if (num_SmartPowerDownEnable > bd) {
485 unsigned int spd = SmartPowerDownEnable[bd];
486 e1000_validate_option(&spd, &opt, adapter);
487 adapter->smart_power_down = spd;
488 } else {
489 adapter->smart_power_down = opt.def;
490 }
491 }
492
493 switch (adapter->hw.media_type) {
494 case e1000_media_type_fiber:
495 case e1000_media_type_internal_serdes:
496 e1000_check_fiber_options(adapter);
497 break;
498 case e1000_media_type_copper:
499 e1000_check_copper_options(adapter);
500 break;
501 default:
502 BUG();
503 }
504}
505
506/**
507 * e1000_check_fiber_options - Range Checking for Link Options, Fiber Version
508 * @adapter: board private structure
509 *
510 * Handles speed and duplex options on fiber adapters
511 **/
512static void e1000_check_fiber_options(struct e1000_adapter *adapter)
513{
514 int bd = adapter->bd_number;
515 if (num_Speed > bd) {
516 e_dev_info("Speed not valid for fiber adapters, parameter "
517 "ignored\n");
518 }
519
520 if (num_Duplex > bd) {
521 e_dev_info("Duplex not valid for fiber adapters, parameter "
522 "ignored\n");
523 }
524
525 if ((num_AutoNeg > bd) && (AutoNeg[bd] != 0x20)) {
526 e_dev_info("AutoNeg other than 1000/Full is not valid for fiber"
527 "adapters, parameter ignored\n");
528 }
529}
530
531/**
532 * e1000_check_copper_options - Range Checking for Link Options, Copper Version
533 * @adapter: board private structure
534 *
535 * Handles speed and duplex options on copper adapters
536 **/
537static void e1000_check_copper_options(struct e1000_adapter *adapter)
538{
539 struct e1000_option opt;
540 unsigned int speed, dplx, an;
541 int bd = adapter->bd_number;
542
543 { /* Speed */
544 static const struct e1000_opt_list speed_list[] = {
545 { 0, "" },
546 { SPEED_10, "" },
547 { SPEED_100, "" },
548 { SPEED_1000, "" }};
549
550 opt = (struct e1000_option) {
551 .type = list_option,
552 .name = "Speed",
553 .err = "parameter ignored",
554 .def = 0,
555 .arg = { .l = { .nr = ARRAY_SIZE(speed_list),
556 .p = speed_list }}
557 };
558
559 if (num_Speed > bd) {
560 speed = Speed[bd];
561 e1000_validate_option(&speed, &opt, adapter);
562 } else {
563 speed = opt.def;
564 }
565 }
566 { /* Duplex */
567 static const struct e1000_opt_list dplx_list[] = {
568 { 0, "" },
569 { HALF_DUPLEX, "" },
570 { FULL_DUPLEX, "" }};
571
572 opt = (struct e1000_option) {
573 .type = list_option,
574 .name = "Duplex",
575 .err = "parameter ignored",
576 .def = 0,
577 .arg = { .l = { .nr = ARRAY_SIZE(dplx_list),
578 .p = dplx_list }}
579 };
580
581 if (num_Duplex > bd) {
582 dplx = Duplex[bd];
583 e1000_validate_option(&dplx, &opt, adapter);
584 } else {
585 dplx = opt.def;
586 }
587 }
588
589 if ((num_AutoNeg > bd) && (speed != 0 || dplx != 0)) {
590 e_dev_info("AutoNeg specified along with Speed or Duplex, "
591 "parameter ignored\n");
592 adapter->hw.autoneg_advertised = AUTONEG_ADV_DEFAULT;
593 } else { /* Autoneg */
594 static const struct e1000_opt_list an_list[] =
595 #define AA "AutoNeg advertising "
596 {{ 0x01, AA "10/HD" },
597 { 0x02, AA "10/FD" },
598 { 0x03, AA "10/FD, 10/HD" },
599 { 0x04, AA "100/HD" },
600 { 0x05, AA "100/HD, 10/HD" },
601 { 0x06, AA "100/HD, 10/FD" },
602 { 0x07, AA "100/HD, 10/FD, 10/HD" },
603 { 0x08, AA "100/FD" },
604 { 0x09, AA "100/FD, 10/HD" },
605 { 0x0a, AA "100/FD, 10/FD" },
606 { 0x0b, AA "100/FD, 10/FD, 10/HD" },
607 { 0x0c, AA "100/FD, 100/HD" },
608 { 0x0d, AA "100/FD, 100/HD, 10/HD" },
609 { 0x0e, AA "100/FD, 100/HD, 10/FD" },
610 { 0x0f, AA "100/FD, 100/HD, 10/FD, 10/HD" },
611 { 0x20, AA "1000/FD" },
612 { 0x21, AA "1000/FD, 10/HD" },
613 { 0x22, AA "1000/FD, 10/FD" },
614 { 0x23, AA "1000/FD, 10/FD, 10/HD" },
615 { 0x24, AA "1000/FD, 100/HD" },
616 { 0x25, AA "1000/FD, 100/HD, 10/HD" },
617 { 0x26, AA "1000/FD, 100/HD, 10/FD" },
618 { 0x27, AA "1000/FD, 100/HD, 10/FD, 10/HD" },
619 { 0x28, AA "1000/FD, 100/FD" },
620 { 0x29, AA "1000/FD, 100/FD, 10/HD" },
621 { 0x2a, AA "1000/FD, 100/FD, 10/FD" },
622 { 0x2b, AA "1000/FD, 100/FD, 10/FD, 10/HD" },
623 { 0x2c, AA "1000/FD, 100/FD, 100/HD" },
624 { 0x2d, AA "1000/FD, 100/FD, 100/HD, 10/HD" },
625 { 0x2e, AA "1000/FD, 100/FD, 100/HD, 10/FD" },
626 { 0x2f, AA "1000/FD, 100/FD, 100/HD, 10/FD, 10/HD" }};
627
628 opt = (struct e1000_option) {
629 .type = list_option,
630 .name = "AutoNeg",
631 .err = "parameter ignored",
632 .def = AUTONEG_ADV_DEFAULT,
633 .arg = { .l = { .nr = ARRAY_SIZE(an_list),
634 .p = an_list }}
635 };
636
637 if (num_AutoNeg > bd) {
638 an = AutoNeg[bd];
639 e1000_validate_option(&an, &opt, adapter);
640 } else {
641 an = opt.def;
642 }
643 adapter->hw.autoneg_advertised = an;
644 }
645
646 switch (speed + dplx) {
647 case 0:
648 adapter->hw.autoneg = adapter->fc_autoneg = 1;
649 if ((num_Speed > bd) && (speed != 0 || dplx != 0))
650 e_dev_info("Speed and duplex autonegotiation "
651 "enabled\n");
652 break;
653 case HALF_DUPLEX:
654 e_dev_info("Half Duplex specified without Speed\n");
655 e_dev_info("Using Autonegotiation at Half Duplex only\n");
656 adapter->hw.autoneg = adapter->fc_autoneg = 1;
657 adapter->hw.autoneg_advertised = ADVERTISE_10_HALF |
658 ADVERTISE_100_HALF;
659 break;
660 case FULL_DUPLEX:
661 e_dev_info("Full Duplex specified without Speed\n");
662 e_dev_info("Using Autonegotiation at Full Duplex only\n");
663 adapter->hw.autoneg = adapter->fc_autoneg = 1;
664 adapter->hw.autoneg_advertised = ADVERTISE_10_FULL |
665 ADVERTISE_100_FULL |
666 ADVERTISE_1000_FULL;
667 break;
668 case SPEED_10:
669 e_dev_info("10 Mbps Speed specified without Duplex\n");
670 e_dev_info("Using Autonegotiation at 10 Mbps only\n");
671 adapter->hw.autoneg = adapter->fc_autoneg = 1;
672 adapter->hw.autoneg_advertised = ADVERTISE_10_HALF |
673 ADVERTISE_10_FULL;
674 break;
675 case SPEED_10 + HALF_DUPLEX:
676 e_dev_info("Forcing to 10 Mbps Half Duplex\n");
677 adapter->hw.autoneg = adapter->fc_autoneg = 0;
678 adapter->hw.forced_speed_duplex = e1000_10_half;
679 adapter->hw.autoneg_advertised = 0;
680 break;
681 case SPEED_10 + FULL_DUPLEX:
682 e_dev_info("Forcing to 10 Mbps Full Duplex\n");
683 adapter->hw.autoneg = adapter->fc_autoneg = 0;
684 adapter->hw.forced_speed_duplex = e1000_10_full;
685 adapter->hw.autoneg_advertised = 0;
686 break;
687 case SPEED_100:
688 e_dev_info("100 Mbps Speed specified without Duplex\n");
689 e_dev_info("Using Autonegotiation at 100 Mbps only\n");
690 adapter->hw.autoneg = adapter->fc_autoneg = 1;
691 adapter->hw.autoneg_advertised = ADVERTISE_100_HALF |
692 ADVERTISE_100_FULL;
693 break;
694 case SPEED_100 + HALF_DUPLEX:
695 e_dev_info("Forcing to 100 Mbps Half Duplex\n");
696 adapter->hw.autoneg = adapter->fc_autoneg = 0;
697 adapter->hw.forced_speed_duplex = e1000_100_half;
698 adapter->hw.autoneg_advertised = 0;
699 break;
700 case SPEED_100 + FULL_DUPLEX:
701 e_dev_info("Forcing to 100 Mbps Full Duplex\n");
702 adapter->hw.autoneg = adapter->fc_autoneg = 0;
703 adapter->hw.forced_speed_duplex = e1000_100_full;
704 adapter->hw.autoneg_advertised = 0;
705 break;
706 case SPEED_1000:
707 e_dev_info("1000 Mbps Speed specified without Duplex\n");
708 goto full_duplex_only;
709 case SPEED_1000 + HALF_DUPLEX:
710 e_dev_info("Half Duplex is not supported at 1000 Mbps\n");
711 fallthrough;
712 case SPEED_1000 + FULL_DUPLEX:
713full_duplex_only:
714 e_dev_info("Using Autonegotiation at 1000 Mbps Full Duplex "
715 "only\n");
716 adapter->hw.autoneg = adapter->fc_autoneg = 1;
717 adapter->hw.autoneg_advertised = ADVERTISE_1000_FULL;
718 break;
719 default:
720 BUG();
721 }
722
723 /* Speed, AutoNeg and MDI/MDI-X must all play nice */
724 if (e1000_validate_mdi_setting(&(adapter->hw)) < 0) {
725 e_dev_info("Speed, AutoNeg and MDI-X specs are incompatible. "
726 "Setting MDI-X to a compatible value.\n");
727 }
728}
729