ethtool.c 28.9 KB
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011
/****************************************************************************
 * Driver for Solarflare Solarstorm network controllers and boards
 * Copyright 2005-2006 Fen Systems Ltd.
 * Copyright 2006-2010 Solarflare Communications Inc.
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 as published
 * by the Free Software Foundation, incorporated herein by reference.
 */

#include <linux/netdevice.h>
#include <linux/ethtool.h>
#include <linux/rtnetlink.h>
#include <linux/in.h>
#include "net_driver.h"
#include "workarounds.h"
#include "selftest.h"
#include "efx.h"
#include "filter.h"
#include "nic.h"

struct ethtool_string {
	char name[ETH_GSTRING_LEN];
};

struct efx_ethtool_stat {
	const char *name;
	enum {
		EFX_ETHTOOL_STAT_SOURCE_mac_stats,
		EFX_ETHTOOL_STAT_SOURCE_nic,
		EFX_ETHTOOL_STAT_SOURCE_channel,
		EFX_ETHTOOL_STAT_SOURCE_tx_queue
	} source;
	unsigned offset;
	u64(*get_stat) (void *field); /* Reader function */
};

/* Initialiser for a struct #efx_ethtool_stat with type-checking */
#define EFX_ETHTOOL_STAT(stat_name, source_name, field, field_type, \
				get_stat_function) {			\
	.name = #stat_name,						\
	.source = EFX_ETHTOOL_STAT_SOURCE_##source_name,		\
	.offset = ((((field_type *) 0) ==				\
		      &((struct efx_##source_name *)0)->field) ?	\
		    offsetof(struct efx_##source_name, field) :		\
		    offsetof(struct efx_##source_name, field)),		\
	.get_stat = get_stat_function,					\
}

static u64 efx_get_uint_stat(void *field)
{
	return *(unsigned int *)field;
}

static u64 efx_get_ulong_stat(void *field)
{
	return *(unsigned long *)field;
}

static u64 efx_get_u64_stat(void *field)
{
	return *(u64 *) field;
}

static u64 efx_get_atomic_stat(void *field)
{
	return atomic_read((atomic_t *) field);
}

#define EFX_ETHTOOL_ULONG_MAC_STAT(field)			\
	EFX_ETHTOOL_STAT(field, mac_stats, field, 		\
			  unsigned long, efx_get_ulong_stat)

#define EFX_ETHTOOL_U64_MAC_STAT(field)				\
	EFX_ETHTOOL_STAT(field, mac_stats, field, 		\
			  u64, efx_get_u64_stat)

#define EFX_ETHTOOL_UINT_NIC_STAT(name)				\
	EFX_ETHTOOL_STAT(name, nic, n_##name,			\
			 unsigned int, efx_get_uint_stat)

#define EFX_ETHTOOL_ATOMIC_NIC_ERROR_STAT(field)		\
	EFX_ETHTOOL_STAT(field, nic, field,			\
			 atomic_t, efx_get_atomic_stat)

#define EFX_ETHTOOL_UINT_CHANNEL_STAT(field)			\
	EFX_ETHTOOL_STAT(field, channel, n_##field,		\
			 unsigned int, efx_get_uint_stat)

#define EFX_ETHTOOL_UINT_TXQ_STAT(field)			\
	EFX_ETHTOOL_STAT(tx_##field, tx_queue, field,		\
			 unsigned int, efx_get_uint_stat)

static struct efx_ethtool_stat efx_ethtool_stats[] = {
	EFX_ETHTOOL_U64_MAC_STAT(tx_bytes),
	EFX_ETHTOOL_U64_MAC_STAT(tx_good_bytes),
	EFX_ETHTOOL_U64_MAC_STAT(tx_bad_bytes),
	EFX_ETHTOOL_ULONG_MAC_STAT(tx_packets),
	EFX_ETHTOOL_ULONG_MAC_STAT(tx_bad),
	EFX_ETHTOOL_ULONG_MAC_STAT(tx_pause),
	EFX_ETHTOOL_ULONG_MAC_STAT(tx_control),
	EFX_ETHTOOL_ULONG_MAC_STAT(tx_unicast),
	EFX_ETHTOOL_ULONG_MAC_STAT(tx_multicast),
	EFX_ETHTOOL_ULONG_MAC_STAT(tx_broadcast),
	EFX_ETHTOOL_ULONG_MAC_STAT(tx_lt64),
	EFX_ETHTOOL_ULONG_MAC_STAT(tx_64),
	EFX_ETHTOOL_ULONG_MAC_STAT(tx_65_to_127),
	EFX_ETHTOOL_ULONG_MAC_STAT(tx_128_to_255),
	EFX_ETHTOOL_ULONG_MAC_STAT(tx_256_to_511),
	EFX_ETHTOOL_ULONG_MAC_STAT(tx_512_to_1023),
	EFX_ETHTOOL_ULONG_MAC_STAT(tx_1024_to_15xx),
	EFX_ETHTOOL_ULONG_MAC_STAT(tx_15xx_to_jumbo),
	EFX_ETHTOOL_ULONG_MAC_STAT(tx_gtjumbo),
	EFX_ETHTOOL_ULONG_MAC_STAT(tx_collision),
	EFX_ETHTOOL_ULONG_MAC_STAT(tx_single_collision),
	EFX_ETHTOOL_ULONG_MAC_STAT(tx_multiple_collision),
	EFX_ETHTOOL_ULONG_MAC_STAT(tx_excessive_collision),
	EFX_ETHTOOL_ULONG_MAC_STAT(tx_deferred),
	EFX_ETHTOOL_ULONG_MAC_STAT(tx_late_collision),
	EFX_ETHTOOL_ULONG_MAC_STAT(tx_excessive_deferred),
	EFX_ETHTOOL_ULONG_MAC_STAT(tx_non_tcpudp),
	EFX_ETHTOOL_ULONG_MAC_STAT(tx_mac_src_error),
	EFX_ETHTOOL_ULONG_MAC_STAT(tx_ip_src_error),
	EFX_ETHTOOL_UINT_TXQ_STAT(tso_bursts),
	EFX_ETHTOOL_UINT_TXQ_STAT(tso_long_headers),
	EFX_ETHTOOL_UINT_TXQ_STAT(tso_packets),
	EFX_ETHTOOL_UINT_TXQ_STAT(pushes),
	EFX_ETHTOOL_U64_MAC_STAT(rx_bytes),
	EFX_ETHTOOL_U64_MAC_STAT(rx_good_bytes),
	EFX_ETHTOOL_U64_MAC_STAT(rx_bad_bytes),
	EFX_ETHTOOL_ULONG_MAC_STAT(rx_packets),
	EFX_ETHTOOL_ULONG_MAC_STAT(rx_good),
	EFX_ETHTOOL_ULONG_MAC_STAT(rx_bad),
	EFX_ETHTOOL_ULONG_MAC_STAT(rx_pause),
	EFX_ETHTOOL_ULONG_MAC_STAT(rx_control),
	EFX_ETHTOOL_ULONG_MAC_STAT(rx_unicast),
	EFX_ETHTOOL_ULONG_MAC_STAT(rx_multicast),
	EFX_ETHTOOL_ULONG_MAC_STAT(rx_broadcast),
	EFX_ETHTOOL_ULONG_MAC_STAT(rx_lt64),
	EFX_ETHTOOL_ULONG_MAC_STAT(rx_64),
	EFX_ETHTOOL_ULONG_MAC_STAT(rx_65_to_127),
	EFX_ETHTOOL_ULONG_MAC_STAT(rx_128_to_255),
	EFX_ETHTOOL_ULONG_MAC_STAT(rx_256_to_511),
	EFX_ETHTOOL_ULONG_MAC_STAT(rx_512_to_1023),
	EFX_ETHTOOL_ULONG_MAC_STAT(rx_1024_to_15xx),
	EFX_ETHTOOL_ULONG_MAC_STAT(rx_15xx_to_jumbo),
	EFX_ETHTOOL_ULONG_MAC_STAT(rx_gtjumbo),
	EFX_ETHTOOL_ULONG_MAC_STAT(rx_bad_lt64),
	EFX_ETHTOOL_ULONG_MAC_STAT(rx_bad_64_to_15xx),
	EFX_ETHTOOL_ULONG_MAC_STAT(rx_bad_15xx_to_jumbo),
	EFX_ETHTOOL_ULONG_MAC_STAT(rx_bad_gtjumbo),
	EFX_ETHTOOL_ULONG_MAC_STAT(rx_overflow),
	EFX_ETHTOOL_ULONG_MAC_STAT(rx_missed),
	EFX_ETHTOOL_ULONG_MAC_STAT(rx_false_carrier),
	EFX_ETHTOOL_ULONG_MAC_STAT(rx_symbol_error),
	EFX_ETHTOOL_ULONG_MAC_STAT(rx_align_error),
	EFX_ETHTOOL_ULONG_MAC_STAT(rx_length_error),
	EFX_ETHTOOL_ULONG_MAC_STAT(rx_internal_error),
	EFX_ETHTOOL_UINT_NIC_STAT(rx_nodesc_drop_cnt),
	EFX_ETHTOOL_ATOMIC_NIC_ERROR_STAT(rx_reset),
	EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_tobe_disc),
	EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_ip_hdr_chksum_err),
	EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_tcp_udp_chksum_err),
	EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_mcast_mismatch),
	EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_frm_trunc),
};

/* Number of ethtool statistics */
#define EFX_ETHTOOL_NUM_STATS ARRAY_SIZE(efx_ethtool_stats)

#define EFX_ETHTOOL_EEPROM_MAGIC 0xEFAB

/**************************************************************************
 *
 * Ethtool operations
 *
 **************************************************************************
 */

/* Identify device by flashing LEDs */
static int efx_ethtool_phys_id(struct net_device *net_dev,
			       enum ethtool_phys_id_state state)
{
	struct efx_nic *efx = netdev_priv(net_dev);
	enum efx_led_mode mode = EFX_LED_DEFAULT;

	switch (state) {
	case ETHTOOL_ID_ON:
		mode = EFX_LED_ON;
		break;
	case ETHTOOL_ID_OFF:
		mode = EFX_LED_OFF;
		break;
	case ETHTOOL_ID_INACTIVE:
		mode = EFX_LED_DEFAULT;
		break;
	case ETHTOOL_ID_ACTIVE:
		return 1;	/* cycle on/off once per second */
	}

	efx->type->set_id_led(efx, mode);
	return 0;
}

/* This must be called with rtnl_lock held. */
static int efx_ethtool_get_settings(struct net_device *net_dev,
				    struct ethtool_cmd *ecmd)
{
	struct efx_nic *efx = netdev_priv(net_dev);
	struct efx_link_state *link_state = &efx->link_state;

	mutex_lock(&efx->mac_lock);
	efx->phy_op->get_settings(efx, ecmd);
	mutex_unlock(&efx->mac_lock);

	/* GMAC does not support 1000Mbps HD */
	ecmd->supported &= ~SUPPORTED_1000baseT_Half;
	/* Both MACs support pause frames (bidirectional and respond-only) */
	ecmd->supported |= SUPPORTED_Pause | SUPPORTED_Asym_Pause;

	if (LOOPBACK_INTERNAL(efx)) {
		ethtool_cmd_speed_set(ecmd, link_state->speed);
		ecmd->duplex = link_state->fd ? DUPLEX_FULL : DUPLEX_HALF;
	}

	return 0;
}

/* This must be called with rtnl_lock held. */
static int efx_ethtool_set_settings(struct net_device *net_dev,
				    struct ethtool_cmd *ecmd)
{
	struct efx_nic *efx = netdev_priv(net_dev);
	int rc;

	/* GMAC does not support 1000Mbps HD */
	if ((ethtool_cmd_speed(ecmd) == SPEED_1000) &&
	    (ecmd->duplex != DUPLEX_FULL)) {
		netif_dbg(efx, drv, efx->net_dev,
			  "rejecting unsupported 1000Mbps HD setting\n");
		return -EINVAL;
	}

	mutex_lock(&efx->mac_lock);
	rc = efx->phy_op->set_settings(efx, ecmd);
	mutex_unlock(&efx->mac_lock);
	return rc;
}

static void efx_ethtool_get_drvinfo(struct net_device *net_dev,
				    struct ethtool_drvinfo *info)
{
	struct efx_nic *efx = netdev_priv(net_dev);

	strlcpy(info->driver, KBUILD_MODNAME, sizeof(info->driver));
	strlcpy(info->version, EFX_DRIVER_VERSION, sizeof(info->version));
	if (efx_nic_rev(efx) >= EFX_REV_SIENA_A0)
		efx_mcdi_print_fwver(efx, info->fw_version,
				     sizeof(info->fw_version));
	strlcpy(info->bus_info, pci_name(efx->pci_dev), sizeof(info->bus_info));
}

static int efx_ethtool_get_regs_len(struct net_device *net_dev)
{
	return efx_nic_get_regs_len(netdev_priv(net_dev));
}

static void efx_ethtool_get_regs(struct net_device *net_dev,
				 struct ethtool_regs *regs, void *buf)
{
	struct efx_nic *efx = netdev_priv(net_dev);

	regs->version = efx->type->revision;
	efx_nic_get_regs(efx, buf);
}

static u32 efx_ethtool_get_msglevel(struct net_device *net_dev)
{
	struct efx_nic *efx = netdev_priv(net_dev);
	return efx->msg_enable;
}

static void efx_ethtool_set_msglevel(struct net_device *net_dev, u32 msg_enable)
{
	struct efx_nic *efx = netdev_priv(net_dev);
	efx->msg_enable = msg_enable;
}

/**
 * efx_fill_test - fill in an individual self-test entry
 * @test_index:		Index of the test
 * @strings:		Ethtool strings, or %NULL
 * @data:		Ethtool test results, or %NULL
 * @test:		Pointer to test result (used only if data != %NULL)
 * @unit_format:	Unit name format (e.g. "chan\%d")
 * @unit_id:		Unit id (e.g. 0 for "chan0")
 * @test_format:	Test name format (e.g. "loopback.\%s.tx.sent")
 * @test_id:		Test id (e.g. "PHYXS" for "loopback.PHYXS.tx_sent")
 *
 * Fill in an individual self-test entry.
 */
static void efx_fill_test(unsigned int test_index,
			  struct ethtool_string *strings, u64 *data,
			  int *test, const char *unit_format, int unit_id,
			  const char *test_format, const char *test_id)
{
	struct ethtool_string unit_str, test_str;

	/* Fill data value, if applicable */
	if (data)
		data[test_index] = *test;

	/* Fill string, if applicable */
	if (strings) {
		if (strchr(unit_format, '%'))
			snprintf(unit_str.name, sizeof(unit_str.name),
				 unit_format, unit_id);
		else
			strcpy(unit_str.name, unit_format);
		snprintf(test_str.name, sizeof(test_str.name),
			 test_format, test_id);
		snprintf(strings[test_index].name,
			 sizeof(strings[test_index].name),
			 "%-6s %-24s", unit_str.name, test_str.name);
	}
}

#define EFX_CHANNEL_NAME(_channel) "chan%d", _channel->channel
#define EFX_TX_QUEUE_NAME(_tx_queue) "txq%d", _tx_queue->queue
#define EFX_RX_QUEUE_NAME(_rx_queue) "rxq%d", _rx_queue->queue
#define EFX_LOOPBACK_NAME(_mode, _counter)			\
	"loopback.%s." _counter, STRING_TABLE_LOOKUP(_mode, efx_loopback_mode)

/**
 * efx_fill_loopback_test - fill in a block of loopback self-test entries
 * @efx:		Efx NIC
 * @lb_tests:		Efx loopback self-test results structure
 * @mode:		Loopback test mode
 * @test_index:		Starting index of the test
 * @strings:		Ethtool strings, or %NULL
 * @data:		Ethtool test results, or %NULL
 */
static int efx_fill_loopback_test(struct efx_nic *efx,
				  struct efx_loopback_self_tests *lb_tests,
				  enum efx_loopback_mode mode,
				  unsigned int test_index,
				  struct ethtool_string *strings, u64 *data)
{
	struct efx_channel *channel = efx_get_channel(efx, 0);
	struct efx_tx_queue *tx_queue;

	efx_for_each_channel_tx_queue(tx_queue, channel) {
		efx_fill_test(test_index++, strings, data,
			      &lb_tests->tx_sent[tx_queue->queue],
			      EFX_TX_QUEUE_NAME(tx_queue),
			      EFX_LOOPBACK_NAME(mode, "tx_sent"));
		efx_fill_test(test_index++, strings, data,
			      &lb_tests->tx_done[tx_queue->queue],
			      EFX_TX_QUEUE_NAME(tx_queue),
			      EFX_LOOPBACK_NAME(mode, "tx_done"));
	}
	efx_fill_test(test_index++, strings, data,
		      &lb_tests->rx_good,
		      "rx", 0,
		      EFX_LOOPBACK_NAME(mode, "rx_good"));
	efx_fill_test(test_index++, strings, data,
		      &lb_tests->rx_bad,
		      "rx", 0,
		      EFX_LOOPBACK_NAME(mode, "rx_bad"));

	return test_index;
}

/**
 * efx_ethtool_fill_self_tests - get self-test details
 * @efx:		Efx NIC
 * @tests:		Efx self-test results structure, or %NULL
 * @strings:		Ethtool strings, or %NULL
 * @data:		Ethtool test results, or %NULL
 */
static int efx_ethtool_fill_self_tests(struct efx_nic *efx,
				       struct efx_self_tests *tests,
				       struct ethtool_string *strings,
				       u64 *data)
{
	struct efx_channel *channel;
	unsigned int n = 0, i;
	enum efx_loopback_mode mode;

	efx_fill_test(n++, strings, data, &tests->phy_alive,
		      "phy", 0, "alive", NULL);
	efx_fill_test(n++, strings, data, &tests->nvram,
		      "core", 0, "nvram", NULL);
	efx_fill_test(n++, strings, data, &tests->interrupt,
		      "core", 0, "interrupt", NULL);

	/* Event queues */
	efx_for_each_channel(channel, efx) {
		efx_fill_test(n++, strings, data,
			      &tests->eventq_dma[channel->channel],
			      EFX_CHANNEL_NAME(channel),
			      "eventq.dma", NULL);
		efx_fill_test(n++, strings, data,
			      &tests->eventq_int[channel->channel],
			      EFX_CHANNEL_NAME(channel),
			      "eventq.int", NULL);
		efx_fill_test(n++, strings, data,
			      &tests->eventq_poll[channel->channel],
			      EFX_CHANNEL_NAME(channel),
			      "eventq.poll", NULL);
	}

	efx_fill_test(n++, strings, data, &tests->registers,
		      "core", 0, "registers", NULL);

	if (efx->phy_op->run_tests != NULL) {
		EFX_BUG_ON_PARANOID(efx->phy_op->test_name == NULL);

		for (i = 0; true; ++i) {
			const char *name;

			EFX_BUG_ON_PARANOID(i >= EFX_MAX_PHY_TESTS);
			name = efx->phy_op->test_name(efx, i);
			if (name == NULL)
				break;

			efx_fill_test(n++, strings, data, &tests->phy_ext[i],
				      "phy", 0, name, NULL);
		}
	}

	/* Loopback tests */
	for (mode = LOOPBACK_NONE; mode <= LOOPBACK_TEST_MAX; mode++) {
		if (!(efx->loopback_modes & (1 << mode)))
			continue;
		n = efx_fill_loopback_test(efx,
					   &tests->loopback[mode], mode, n,
					   strings, data);
	}

	return n;
}

static int efx_ethtool_get_sset_count(struct net_device *net_dev,
				      int string_set)
{
	switch (string_set) {
	case ETH_SS_STATS:
		return EFX_ETHTOOL_NUM_STATS;
	case ETH_SS_TEST:
		return efx_ethtool_fill_self_tests(netdev_priv(net_dev),
						   NULL, NULL, NULL);
	default:
		return -EINVAL;
	}
}

static void efx_ethtool_get_strings(struct net_device *net_dev,
				    u32 string_set, u8 *strings)
{
	struct efx_nic *efx = netdev_priv(net_dev);
	struct ethtool_string *ethtool_strings =
		(struct ethtool_string *)strings;
	int i;

	switch (string_set) {
	case ETH_SS_STATS:
		for (i = 0; i < EFX_ETHTOOL_NUM_STATS; i++)
			strncpy(ethtool_strings[i].name,
				efx_ethtool_stats[i].name,
				sizeof(ethtool_strings[i].name));
		break;
	case ETH_SS_TEST:
		efx_ethtool_fill_self_tests(efx, NULL,
					    ethtool_strings, NULL);
		break;
	default:
		/* No other string sets */
		break;
	}
}

static void efx_ethtool_get_stats(struct net_device *net_dev,
				  struct ethtool_stats *stats,
				  u64 *data)
{
	struct efx_nic *efx = netdev_priv(net_dev);
	struct efx_mac_stats *mac_stats = &efx->mac_stats;
	struct efx_ethtool_stat *stat;
	struct efx_channel *channel;
	struct efx_tx_queue *tx_queue;
	struct rtnl_link_stats64 temp;
	int i;

	EFX_BUG_ON_PARANOID(stats->n_stats != EFX_ETHTOOL_NUM_STATS);

	/* Update MAC and NIC statistics */
	dev_get_stats(net_dev, &temp);

	/* Fill detailed statistics buffer */
	for (i = 0; i < EFX_ETHTOOL_NUM_STATS; i++) {
		stat = &efx_ethtool_stats[i];
		switch (stat->source) {
		case EFX_ETHTOOL_STAT_SOURCE_mac_stats:
			data[i] = stat->get_stat((void *)mac_stats +
						 stat->offset);
			break;
		case EFX_ETHTOOL_STAT_SOURCE_nic:
			data[i] = stat->get_stat((void *)efx + stat->offset);
			break;
		case EFX_ETHTOOL_STAT_SOURCE_channel:
			data[i] = 0;
			efx_for_each_channel(channel, efx)
				data[i] += stat->get_stat((void *)channel +
							  stat->offset);
			break;
		case EFX_ETHTOOL_STAT_SOURCE_tx_queue:
			data[i] = 0;
			efx_for_each_channel(channel, efx) {
				efx_for_each_channel_tx_queue(tx_queue, channel)
					data[i] +=
						stat->get_stat((void *)tx_queue
							       + stat->offset);
			}
			break;
		}
	}
}

static void efx_ethtool_self_test(struct net_device *net_dev,
				  struct ethtool_test *test, u64 *data)
{
	struct efx_nic *efx = netdev_priv(net_dev);
	struct efx_self_tests *efx_tests;
	int already_up;
	int rc = -ENOMEM;

	efx_tests = kzalloc(sizeof(*efx_tests), GFP_KERNEL);
	if (!efx_tests)
		goto fail;


	ASSERT_RTNL();
	if (efx->state != STATE_RUNNING) {
		rc = -EIO;
		goto fail1;
	}

	netif_info(efx, drv, efx->net_dev, "starting %sline testing\n",
		   (test->flags & ETH_TEST_FL_OFFLINE) ? "off" : "on");

	/* We need rx buffers and interrupts. */
	already_up = (efx->net_dev->flags & IFF_UP);
	if (!already_up) {
		rc = dev_open(efx->net_dev);
		if (rc) {
			netif_err(efx, drv, efx->net_dev,
				  "failed opening device.\n");
			goto fail1;
		}
	}

	rc = efx_selftest(efx, efx_tests, test->flags);

	if (!already_up)
		dev_close(efx->net_dev);

	netif_info(efx, drv, efx->net_dev, "%s %sline self-tests\n",
		   rc == 0 ? "passed" : "failed",
		   (test->flags & ETH_TEST_FL_OFFLINE) ? "off" : "on");

fail1:
	/* Fill ethtool results structures */
	efx_ethtool_fill_self_tests(efx, efx_tests, NULL, data);
	kfree(efx_tests);
fail:
	if (rc)
		test->flags |= ETH_TEST_FL_FAILED;
}

/* Restart autonegotiation */
static int efx_ethtool_nway_reset(struct net_device *net_dev)
{
	struct efx_nic *efx = netdev_priv(net_dev);

	return mdio45_nway_restart(&efx->mdio);
}

/*
 * Each channel has a single IRQ and moderation timer, started by any
 * completion (or other event).  Unless the module parameter
 * separate_tx_channels is set, IRQs and moderation are therefore
 * shared between RX and TX completions.  In this case, when RX IRQ
 * moderation is explicitly changed then TX IRQ moderation is
 * automatically changed too, but otherwise we fail if the two values
 * are requested to be different.
 *
 * We implement adaptive IRQ moderation, but use a different algorithm
 * from that assumed in the definition of struct ethtool_coalesce.
 * Therefore we do not use any of the adaptive moderation parameters
 * in it.
 */

static int efx_ethtool_get_coalesce(struct net_device *net_dev,
				    struct ethtool_coalesce *coalesce)
{
	struct efx_nic *efx = netdev_priv(net_dev);
	unsigned int tx_usecs, rx_usecs;
	bool rx_adaptive;

	efx_get_irq_moderation(efx, &tx_usecs, &rx_usecs, &rx_adaptive);

	coalesce->tx_coalesce_usecs_irq = tx_usecs;
	coalesce->rx_coalesce_usecs_irq = rx_usecs;
	coalesce->use_adaptive_rx_coalesce = rx_adaptive;

	return 0;
}

static int efx_ethtool_set_coalesce(struct net_device *net_dev,
				    struct ethtool_coalesce *coalesce)
{
	struct efx_nic *efx = netdev_priv(net_dev);
	struct efx_channel *channel;
	unsigned int tx_usecs, rx_usecs;
	bool adaptive, rx_may_override_tx;
	int rc;

	if (coalesce->use_adaptive_tx_coalesce)
		return -EINVAL;

	if (coalesce->rx_coalesce_usecs || coalesce->tx_coalesce_usecs) {
		netif_err(efx, drv, efx->net_dev, "invalid coalescing setting. "
			  "Only rx/tx_coalesce_usecs_irq are supported\n");
		return -EINVAL;
	}

	efx_get_irq_moderation(efx, &tx_usecs, &rx_usecs, &adaptive);

	rx_usecs = coalesce->rx_coalesce_usecs_irq;
	adaptive = coalesce->use_adaptive_rx_coalesce;

	/* If channels are shared, TX IRQ moderation can be quietly
	 * overridden unless it is changed from its old value.
	 */
	rx_may_override_tx = coalesce->tx_coalesce_usecs_irq == tx_usecs;
	tx_usecs = coalesce->tx_coalesce_usecs_irq;

	rc = efx_init_irq_moderation(efx, tx_usecs, rx_usecs, adaptive,
				     rx_may_override_tx);
	if (rc != 0)
		return rc;

	efx_for_each_channel(channel, efx)
		efx->type->push_irq_moderation(channel);

	return 0;
}

static void efx_ethtool_get_ringparam(struct net_device *net_dev,
				      struct ethtool_ringparam *ring)
{
	struct efx_nic *efx = netdev_priv(net_dev);

	ring->rx_max_pending = EFX_MAX_DMAQ_SIZE;
	ring->tx_max_pending = EFX_MAX_DMAQ_SIZE;
	ring->rx_mini_max_pending = 0;
	ring->rx_jumbo_max_pending = 0;
	ring->rx_pending = efx->rxq_entries;
	ring->tx_pending = efx->txq_entries;
	ring->rx_mini_pending = 0;
	ring->rx_jumbo_pending = 0;
}

static int efx_ethtool_set_ringparam(struct net_device *net_dev,
				     struct ethtool_ringparam *ring)
{
	struct efx_nic *efx = netdev_priv(net_dev);

	if (ring->rx_mini_pending || ring->rx_jumbo_pending ||
	    ring->rx_pending > EFX_MAX_DMAQ_SIZE ||
	    ring->tx_pending > EFX_MAX_DMAQ_SIZE)
		return -EINVAL;

	if (ring->rx_pending < EFX_MIN_RING_SIZE ||
	    ring->tx_pending < EFX_MIN_RING_SIZE) {
		netif_err(efx, drv, efx->net_dev,
			  "TX and RX queues cannot be smaller than %ld\n",
			  EFX_MIN_RING_SIZE);
		return -EINVAL;
	}

	return efx_realloc_channels(efx, ring->rx_pending, ring->tx_pending);
}

static int efx_ethtool_set_pauseparam(struct net_device *net_dev,
				      struct ethtool_pauseparam *pause)
{
	struct efx_nic *efx = netdev_priv(net_dev);
	u8 wanted_fc, old_fc;
	u32 old_adv;
	bool reset;
	int rc = 0;

	mutex_lock(&efx->mac_lock);

	wanted_fc = ((pause->rx_pause ? EFX_FC_RX : 0) |
		     (pause->tx_pause ? EFX_FC_TX : 0) |
		     (pause->autoneg ? EFX_FC_AUTO : 0));

	if ((wanted_fc & EFX_FC_TX) && !(wanted_fc & EFX_FC_RX)) {
		netif_dbg(efx, drv, efx->net_dev,
			  "Flow control unsupported: tx ON rx OFF\n");
		rc = -EINVAL;
		goto out;
	}

	if ((wanted_fc & EFX_FC_AUTO) && !efx->link_advertising) {
		netif_dbg(efx, drv, efx->net_dev,
			  "Autonegotiation is disabled\n");
		rc = -EINVAL;
		goto out;
	}

	/* TX flow control may automatically turn itself off if the
	 * link partner (intermittently) stops responding to pause
	 * frames. There isn't any indication that this has happened,
	 * so the best we do is leave it up to the user to spot this
	 * and fix it be cycling transmit flow control on this end. */
	reset = (wanted_fc & EFX_FC_TX) && !(efx->wanted_fc & EFX_FC_TX);
	if (EFX_WORKAROUND_11482(efx) && reset) {
		if (efx_nic_rev(efx) == EFX_REV_FALCON_B0) {
			/* Recover by resetting the EM block */
			falcon_stop_nic_stats(efx);
			falcon_drain_tx_fifo(efx);
			efx->mac_op->reconfigure(efx);
			falcon_start_nic_stats(efx);
		} else {
			/* Schedule a reset to recover */
			efx_schedule_reset(efx, RESET_TYPE_INVISIBLE);
		}
	}

	old_adv = efx->link_advertising;
	old_fc = efx->wanted_fc;
	efx_link_set_wanted_fc(efx, wanted_fc);
	if (efx->link_advertising != old_adv ||
	    (efx->wanted_fc ^ old_fc) & EFX_FC_AUTO) {
		rc = efx->phy_op->reconfigure(efx);
		if (rc) {
			netif_err(efx, drv, efx->net_dev,
				  "Unable to advertise requested flow "
				  "control setting\n");
			goto out;
		}
	}

	/* Reconfigure the MAC. The PHY *may* generate a link state change event
	 * if the user just changed the advertised capabilities, but there's no
	 * harm doing this twice */
	efx->mac_op->reconfigure(efx);

out:
	mutex_unlock(&efx->mac_lock);

	return rc;
}

static void efx_ethtool_get_pauseparam(struct net_device *net_dev,
				       struct ethtool_pauseparam *pause)
{
	struct efx_nic *efx = netdev_priv(net_dev);

	pause->rx_pause = !!(efx->wanted_fc & EFX_FC_RX);
	pause->tx_pause = !!(efx->wanted_fc & EFX_FC_TX);
	pause->autoneg = !!(efx->wanted_fc & EFX_FC_AUTO);
}


static void efx_ethtool_get_wol(struct net_device *net_dev,
				struct ethtool_wolinfo *wol)
{
	struct efx_nic *efx = netdev_priv(net_dev);
	return efx->type->get_wol(efx, wol);
}


static int efx_ethtool_set_wol(struct net_device *net_dev,
			       struct ethtool_wolinfo *wol)
{
	struct efx_nic *efx = netdev_priv(net_dev);
	return efx->type->set_wol(efx, wol->wolopts);
}

static int efx_ethtool_reset(struct net_device *net_dev, u32 *flags)
{
	struct efx_nic *efx = netdev_priv(net_dev);
	int rc;

	rc = efx->type->map_reset_flags(flags);
	if (rc < 0)
		return rc;

	return efx_reset(efx, rc);
}

static int
efx_ethtool_get_rxnfc(struct net_device *net_dev,
		      struct ethtool_rxnfc *info, void *rules __always_unused)
{
	struct efx_nic *efx = netdev_priv(net_dev);

	switch (info->cmd) {
	case ETHTOOL_GRXRINGS:
		info->data = efx->n_rx_channels;
		return 0;

	case ETHTOOL_GRXFH: {
		unsigned min_revision = 0;

		info->data = 0;
		switch (info->flow_type) {
		case TCP_V4_FLOW:
			info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
			/* fall through */
		case UDP_V4_FLOW:
		case SCTP_V4_FLOW:
		case AH_ESP_V4_FLOW:
		case IPV4_FLOW:
			info->data |= RXH_IP_SRC | RXH_IP_DST;
			min_revision = EFX_REV_FALCON_B0;
			break;
		case TCP_V6_FLOW:
			info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
			/* fall through */
		case UDP_V6_FLOW:
		case SCTP_V6_FLOW:
		case AH_ESP_V6_FLOW:
		case IPV6_FLOW:
			info->data |= RXH_IP_SRC | RXH_IP_DST;
			min_revision = EFX_REV_SIENA_A0;
			break;
		default:
			break;
		}
		if (efx_nic_rev(efx) < min_revision)
			info->data = 0;
		return 0;
	}

	default:
		return -EOPNOTSUPP;
	}
}

static int efx_ethtool_set_rx_ntuple(struct net_device *net_dev,
				     struct ethtool_rx_ntuple *ntuple)
{
	struct efx_nic *efx = netdev_priv(net_dev);
	struct ethtool_tcpip4_spec *ip_entry = &ntuple->fs.h_u.tcp_ip4_spec;
	struct ethtool_tcpip4_spec *ip_mask = &ntuple->fs.m_u.tcp_ip4_spec;
	struct ethhdr *mac_entry = &ntuple->fs.h_u.ether_spec;
	struct ethhdr *mac_mask = &ntuple->fs.m_u.ether_spec;
	struct efx_filter_spec filter;
	int rc;

	/* Range-check action */
	if (ntuple->fs.action < ETHTOOL_RXNTUPLE_ACTION_CLEAR ||
	    ntuple->fs.action >= (s32)efx->n_rx_channels)
		return -EINVAL;

	if (~ntuple->fs.data_mask)
		return -EINVAL;

	efx_filter_init_rx(&filter, EFX_FILTER_PRI_MANUAL, 0,
			   (ntuple->fs.action == ETHTOOL_RXNTUPLE_ACTION_DROP) ?
			   0xfff : ntuple->fs.action);

	switch (ntuple->fs.flow_type) {
	case TCP_V4_FLOW:
	case UDP_V4_FLOW: {
		u8 proto = (ntuple->fs.flow_type == TCP_V4_FLOW ?
			    IPPROTO_TCP : IPPROTO_UDP);

		/* Must match all of destination, */
		if (ip_mask->ip4dst | ip_mask->pdst)
			return -EINVAL;
		/* all or none of source, */
		if ((ip_mask->ip4src | ip_mask->psrc) &&
		    ((__force u32)~ip_mask->ip4src |
		     (__force u16)~ip_mask->psrc))
			return -EINVAL;
		/* and nothing else */
		if ((u8)~ip_mask->tos | (u16)~ntuple->fs.vlan_tag_mask)
			return -EINVAL;

		if (!ip_mask->ip4src)
			rc = efx_filter_set_ipv4_full(&filter, proto,
						      ip_entry->ip4dst,
						      ip_entry->pdst,
						      ip_entry->ip4src,
						      ip_entry->psrc);
		else
			rc = efx_filter_set_ipv4_local(&filter, proto,
						       ip_entry->ip4dst,
						       ip_entry->pdst);
		if (rc)
			return rc;
		break;
	}

	case ETHER_FLOW:
		/* Must match all of destination, */
		if (!is_zero_ether_addr(mac_mask->h_dest))
			return -EINVAL;
		/* all or none of VID, */
		if (ntuple->fs.vlan_tag_mask != 0xf000 &&
		    ntuple->fs.vlan_tag_mask != 0xffff)
			return -EINVAL;
		/* and nothing else */
		if (!is_broadcast_ether_addr(mac_mask->h_source) ||
		    mac_mask->h_proto != htons(0xffff))
			return -EINVAL;

		rc = efx_filter_set_eth_local(
			&filter,
			(ntuple->fs.vlan_tag_mask == 0xf000) ?
			ntuple->fs.vlan_tag : EFX_FILTER_VID_UNSPEC,
			mac_entry->h_dest);
		if (rc)
			return rc;
		break;

	default:
		return -EINVAL;
	}

	if (ntuple->fs.action == ETHTOOL_RXNTUPLE_ACTION_CLEAR)
		return efx_filter_remove_filter(efx, &filter);

	rc = efx_filter_insert_filter(efx, &filter, true);
	return rc < 0 ? rc : 0;
}

static int efx_ethtool_get_rxfh_indir(struct net_device *net_dev,
				      struct ethtool_rxfh_indir *indir)
{
	struct efx_nic *efx = netdev_priv(net_dev);
	size_t copy_size =
		min_t(size_t, indir->size, ARRAY_SIZE(efx->rx_indir_table));

	if (efx_nic_rev(efx) < EFX_REV_FALCON_B0)
		return -EOPNOTSUPP;

	indir->size = ARRAY_SIZE(efx->rx_indir_table);
	memcpy(indir->ring_index, efx->rx_indir_table,
	       copy_size * sizeof(indir->ring_index[0]));
	return 0;
}

static int efx_ethtool_set_rxfh_indir(struct net_device *net_dev,
				      const struct ethtool_rxfh_indir *indir)
{
	struct efx_nic *efx = netdev_priv(net_dev);
	size_t i;

	if (efx_nic_rev(efx) < EFX_REV_FALCON_B0)
		return -EOPNOTSUPP;

	/* Validate size and indices */
	if (indir->size != ARRAY_SIZE(efx->rx_indir_table))
		return -EINVAL;
	for (i = 0; i < ARRAY_SIZE(efx->rx_indir_table); i++)
		if (indir->ring_index[i] >= efx->n_rx_channels)
			return -EINVAL;

	memcpy(efx->rx_indir_table, indir->ring_index,
	       sizeof(efx->rx_indir_table));
	efx_nic_push_rx_indir_table(efx);
	return 0;
}

const struct ethtool_ops efx_ethtool_ops = {
	.get_settings		= efx_ethtool_get_settings,
	.set_settings		= efx_ethtool_set_settings,
	.get_drvinfo		= efx_ethtool_get_drvinfo,
	.get_regs_len		= efx_ethtool_get_regs_len,
	.get_regs		= efx_ethtool_get_regs,
	.get_msglevel		= efx_ethtool_get_msglevel,
	.set_msglevel		= efx_ethtool_set_msglevel,
	.nway_reset		= efx_ethtool_nway_reset,
	.get_link		= ethtool_op_get_link,
	.get_coalesce		= efx_ethtool_get_coalesce,
	.set_coalesce		= efx_ethtool_set_coalesce,
	.get_ringparam		= efx_ethtool_get_ringparam,
	.set_ringparam		= efx_ethtool_set_ringparam,
	.get_pauseparam         = efx_ethtool_get_pauseparam,
	.set_pauseparam         = efx_ethtool_set_pauseparam,
	.get_sset_count		= efx_ethtool_get_sset_count,
	.self_test		= efx_ethtool_self_test,
	.get_strings		= efx_ethtool_get_strings,
	.set_phys_id		= efx_ethtool_phys_id,
	.get_ethtool_stats	= efx_ethtool_get_stats,
	.get_wol                = efx_ethtool_get_wol,
	.set_wol                = efx_ethtool_set_wol,
	.reset			= efx_ethtool_reset,
	.get_rxnfc		= efx_ethtool_get_rxnfc,
	.set_rx_ntuple		= efx_ethtool_set_rx_ntuple,
	.get_rxfh_indir		= efx_ethtool_get_rxfh_indir,
	.set_rxfh_indir		= efx_ethtool_set_rxfh_indir,
};
反馈
建议
客服 返回
顶部