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  */
35 E1000_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  */
44 E1000_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  */
56 E1000_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  */
67 E1000_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  */
83 E1000_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  */
96 E1000_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  */
107 E1000_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  */
114 E1000_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  */
123 E1000_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  */
133 E1000_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  */
142 E1000_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  */
151 E1000_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  */
162 E1000_PARAM(SmartPowerDownEnable, "Enable PHY smart power down");
163 
164 struct 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 
181 static 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 
231 static void e1000_check_fiber_options(struct e1000_adapter *adapter);
232 static 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  **/
243 void 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  **/
510 static 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  **/
535 static 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:
711 full_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 
728