1
2
3
4#include "e1000.h"
5
6
7
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
17
18
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
29
30
31
32
33
34
35E1000_PARAM(TxDescriptors, "Number of transmit descriptors");
36
37
38
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42
43
44E1000_PARAM(RxDescriptors, "Number of receive descriptors");
45
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48
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54
55
56E1000_PARAM(Speed, "Speed setting");
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65
66
67E1000_PARAM(Duplex, "Duplex setting");
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69
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81
82
83E1000_PARAM(AutoNeg, "Advertised auto-negotiation setting");
84#define AUTONEG_ADV_DEFAULT 0x2F
85#define AUTONEG_ADV_MASK 0x2F
86
87
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96
97E1000_PARAM(FlowControl, "Flow Control setting");
98#define FLOW_CONTROL_DEFAULT FLOW_CONTROL_FULL
99
100
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107
108
109E1000_PARAM(XsumRX, "Disable or enable Receive Checksum offload");
110
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113
114
115
116E1000_PARAM(TxIntDelay, "Transmit Interrupt Delay");
117#define DEFAULT_TIDV 8
118#define MAX_TXDELAY 0xFFFF
119#define MIN_TXDELAY 0
120
121
122
123
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
131
132
133
134
135E1000_PARAM(RxIntDelay, "Receive Interrupt Delay");
136#define DEFAULT_RDTR 0
137#define MAX_RXDELAY 0xFFFF
138#define MIN_RXDELAY 0
139
140
141
142
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
150
151
152
153E1000_PARAM(InterruptThrottleRate, "Interrupt Throttling Rate");
154#define DEFAULT_ITR 3
155#define MAX_ITR 100000
156#define MIN_ITR 100
157
158
159
160
161
162
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 {
173 int min;
174 int max;
175 } r;
176 struct {
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
238
239
240
241
242
243
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 {
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 {
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 {
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 {
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 {
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 {
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 {
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 {
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 {
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
464
465
466
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 {
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
508
509
510
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
533
534
535
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 {
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 {
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 {
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
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
730
