Free Electrons

Embedded Linux Experts

  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
/*
 * Copyright (C) 2003 - 2009 NetXen, Inc.
 * Copyright (C) 2009 - QLogic Corporation.
 * All rights reserved.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
 * MA  02111-1307, USA.
 *
 * The full GNU General Public License is included in this distribution
 * in the file called "COPYING".
 *
 */

#include <linux/types.h>
#include <linux/delay.h>
#include <linux/pci.h>
#include <asm/io.h>
#include <linux/netdevice.h>
#include <linux/ethtool.h>

#include "netxen_nic.h"
#include "netxen_nic_hw.h"

struct netxen_nic_stats {
	char stat_string[ETH_GSTRING_LEN];
	int sizeof_stat;
	int stat_offset;
};

#define NETXEN_NIC_STAT(m) sizeof(((struct netxen_adapter *)0)->m), \
			offsetof(struct netxen_adapter, m)

#define NETXEN_NIC_PORT_WINDOW 0x10000
#define NETXEN_NIC_INVALID_DATA 0xDEADBEEF

static const struct netxen_nic_stats netxen_nic_gstrings_stats[] = {
	{"xmit_called", NETXEN_NIC_STAT(stats.xmitcalled)},
	{"xmit_finished", NETXEN_NIC_STAT(stats.xmitfinished)},
	{"rx_dropped", NETXEN_NIC_STAT(stats.rxdropped)},
	{"tx_dropped", NETXEN_NIC_STAT(stats.txdropped)},
	{"csummed", NETXEN_NIC_STAT(stats.csummed)},
	{"rx_pkts", NETXEN_NIC_STAT(stats.rx_pkts)},
	{"lro_pkts", NETXEN_NIC_STAT(stats.lro_pkts)},
	{"rx_bytes", NETXEN_NIC_STAT(stats.rxbytes)},
	{"tx_bytes", NETXEN_NIC_STAT(stats.txbytes)},
};

#define NETXEN_NIC_STATS_LEN	ARRAY_SIZE(netxen_nic_gstrings_stats)

static const char netxen_nic_gstrings_test[][ETH_GSTRING_LEN] = {
	"Register_Test_on_offline",
	"Link_Test_on_offline"
};

#define NETXEN_NIC_TEST_LEN	ARRAY_SIZE(netxen_nic_gstrings_test)

#define NETXEN_NIC_REGS_COUNT 30
#define NETXEN_NIC_REGS_LEN (NETXEN_NIC_REGS_COUNT * sizeof(__le32))
#define NETXEN_MAX_EEPROM_LEN   1024

static int netxen_nic_get_eeprom_len(struct net_device *dev)
{
	return NETXEN_FLASH_TOTAL_SIZE;
}

static void
netxen_nic_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *drvinfo)
{
	struct netxen_adapter *adapter = netdev_priv(dev);
	u32 fw_major = 0;
	u32 fw_minor = 0;
	u32 fw_build = 0;

	strlcpy(drvinfo->driver, netxen_nic_driver_name,
		sizeof(drvinfo->driver));
	strlcpy(drvinfo->version, NETXEN_NIC_LINUX_VERSIONID,
		sizeof(drvinfo->version));
	fw_major = NXRD32(adapter, NETXEN_FW_VERSION_MAJOR);
	fw_minor = NXRD32(adapter, NETXEN_FW_VERSION_MINOR);
	fw_build = NXRD32(adapter, NETXEN_FW_VERSION_SUB);
	snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
		"%d.%d.%d", fw_major, fw_minor, fw_build);

	strlcpy(drvinfo->bus_info, pci_name(adapter->pdev),
		sizeof(drvinfo->bus_info));
	drvinfo->regdump_len = NETXEN_NIC_REGS_LEN;
	drvinfo->eedump_len = netxen_nic_get_eeprom_len(dev);
}

static int
netxen_nic_get_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
{
	struct netxen_adapter *adapter = netdev_priv(dev);
	int check_sfp_module = 0;

	/* read which mode */
	if (adapter->ahw.port_type == NETXEN_NIC_GBE) {
		ecmd->supported = (SUPPORTED_10baseT_Half |
				   SUPPORTED_10baseT_Full |
				   SUPPORTED_100baseT_Half |
				   SUPPORTED_100baseT_Full |
				   SUPPORTED_1000baseT_Half |
				   SUPPORTED_1000baseT_Full);

		ecmd->advertising = (ADVERTISED_100baseT_Half |
				     ADVERTISED_100baseT_Full |
				     ADVERTISED_1000baseT_Half |
				     ADVERTISED_1000baseT_Full);

		ecmd->port = PORT_TP;

		ethtool_cmd_speed_set(ecmd, adapter->link_speed);
		ecmd->duplex = adapter->link_duplex;
		ecmd->autoneg = adapter->link_autoneg;

	} else if (adapter->ahw.port_type == NETXEN_NIC_XGBE) {
		u32 val;

		val = NXRD32(adapter, NETXEN_PORT_MODE_ADDR);
		if (val == NETXEN_PORT_MODE_802_3_AP) {
			ecmd->supported = SUPPORTED_1000baseT_Full;
			ecmd->advertising = ADVERTISED_1000baseT_Full;
		} else {
			ecmd->supported = SUPPORTED_10000baseT_Full;
			ecmd->advertising = ADVERTISED_10000baseT_Full;
		}

		if (netif_running(dev) && adapter->has_link_events) {
			ethtool_cmd_speed_set(ecmd, adapter->link_speed);
			ecmd->autoneg = adapter->link_autoneg;
			ecmd->duplex = adapter->link_duplex;
			goto skip;
		}

		ecmd->port = PORT_TP;

		if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
			u16 pcifn = adapter->ahw.pci_func;

			val = NXRD32(adapter, P3_LINK_SPEED_REG(pcifn));
			ethtool_cmd_speed_set(ecmd, P3_LINK_SPEED_MHZ *
					      P3_LINK_SPEED_VAL(pcifn, val));
		} else
			ethtool_cmd_speed_set(ecmd, SPEED_10000);

		ecmd->duplex = DUPLEX_FULL;
		ecmd->autoneg = AUTONEG_DISABLE;
	} else
		return -EIO;

skip:
	ecmd->phy_address = adapter->physical_port;
	ecmd->transceiver = XCVR_EXTERNAL;

	switch (adapter->ahw.board_type) {
	case NETXEN_BRDTYPE_P2_SB35_4G:
	case NETXEN_BRDTYPE_P2_SB31_2G:
	case NETXEN_BRDTYPE_P3_REF_QG:
	case NETXEN_BRDTYPE_P3_4_GB:
	case NETXEN_BRDTYPE_P3_4_GB_MM:

		ecmd->supported |= SUPPORTED_Autoneg;
		ecmd->advertising |= ADVERTISED_Autoneg;
	case NETXEN_BRDTYPE_P2_SB31_10G_CX4:
	case NETXEN_BRDTYPE_P3_10G_CX4:
	case NETXEN_BRDTYPE_P3_10G_CX4_LP:
	case NETXEN_BRDTYPE_P3_10000_BASE_T:
		ecmd->supported |= SUPPORTED_TP;
		ecmd->advertising |= ADVERTISED_TP;
		ecmd->port = PORT_TP;
		ecmd->autoneg = (adapter->ahw.board_type ==
				 NETXEN_BRDTYPE_P2_SB31_10G_CX4) ?
		    (AUTONEG_DISABLE) : (adapter->link_autoneg);
		break;
	case NETXEN_BRDTYPE_P2_SB31_10G_HMEZ:
	case NETXEN_BRDTYPE_P2_SB31_10G_IMEZ:
	case NETXEN_BRDTYPE_P3_IMEZ:
	case NETXEN_BRDTYPE_P3_XG_LOM:
	case NETXEN_BRDTYPE_P3_HMEZ:
		ecmd->supported |= SUPPORTED_MII;
		ecmd->advertising |= ADVERTISED_MII;
		ecmd->port = PORT_MII;
		ecmd->autoneg = AUTONEG_DISABLE;
		break;
	case NETXEN_BRDTYPE_P3_10G_SFP_PLUS:
	case NETXEN_BRDTYPE_P3_10G_SFP_CT:
	case NETXEN_BRDTYPE_P3_10G_SFP_QT:
		ecmd->advertising |= ADVERTISED_TP;
		ecmd->supported |= SUPPORTED_TP;
		check_sfp_module = netif_running(dev) &&
			adapter->has_link_events;
	case NETXEN_BRDTYPE_P2_SB31_10G:
	case NETXEN_BRDTYPE_P3_10G_XFP:
		ecmd->supported |= SUPPORTED_FIBRE;
		ecmd->advertising |= ADVERTISED_FIBRE;
		ecmd->port = PORT_FIBRE;
		ecmd->autoneg = AUTONEG_DISABLE;
		break;
	case NETXEN_BRDTYPE_P3_10G_TP:
		if (adapter->ahw.port_type == NETXEN_NIC_XGBE) {
			ecmd->autoneg = AUTONEG_DISABLE;
			ecmd->supported |= (SUPPORTED_FIBRE | SUPPORTED_TP);
			ecmd->advertising |=
				(ADVERTISED_FIBRE | ADVERTISED_TP);
			ecmd->port = PORT_FIBRE;
			check_sfp_module = netif_running(dev) &&
				adapter->has_link_events;
		} else {
			ecmd->supported |= (SUPPORTED_TP |SUPPORTED_Autoneg);
			ecmd->advertising |=
				(ADVERTISED_TP | ADVERTISED_Autoneg);
			ecmd->port = PORT_TP;
		}
		break;
	default:
		printk(KERN_ERR "netxen-nic: Unsupported board model %d\n",
				adapter->ahw.board_type);
		return -EIO;
	}

	if (check_sfp_module) {
		switch (adapter->module_type) {
		case LINKEVENT_MODULE_OPTICAL_UNKNOWN:
		case LINKEVENT_MODULE_OPTICAL_SRLR:
		case LINKEVENT_MODULE_OPTICAL_LRM:
		case LINKEVENT_MODULE_OPTICAL_SFP_1G:
			ecmd->port = PORT_FIBRE;
			break;
		case LINKEVENT_MODULE_TWINAX_UNSUPPORTED_CABLE:
		case LINKEVENT_MODULE_TWINAX_UNSUPPORTED_CABLELEN:
		case LINKEVENT_MODULE_TWINAX:
			ecmd->port = PORT_TP;
			break;
		default:
			ecmd->port = -1;
		}
	}

	if (!netif_running(dev) || !adapter->ahw.linkup) {
		ecmd->duplex = DUPLEX_UNKNOWN;
		ethtool_cmd_speed_set(ecmd, SPEED_UNKNOWN);
	}

	return 0;
}

static int
netxen_nic_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
{
	struct netxen_adapter *adapter = netdev_priv(dev);
	u32 speed = ethtool_cmd_speed(ecmd);
	int ret;

	if (adapter->ahw.port_type != NETXEN_NIC_GBE)
		return -EOPNOTSUPP;

	if (!(adapter->capabilities & NX_FW_CAPABILITY_GBE_LINK_CFG))
		return -EOPNOTSUPP;

	ret = nx_fw_cmd_set_gbe_port(adapter, speed, ecmd->duplex,
				     ecmd->autoneg);
	if (ret == NX_RCODE_NOT_SUPPORTED)
		return -EOPNOTSUPP;
	else if (ret)
		return -EIO;

	adapter->link_speed = speed;
	adapter->link_duplex = ecmd->duplex;
	adapter->link_autoneg = ecmd->autoneg;

	if (!netif_running(dev))
		return 0;

	dev->netdev_ops->ndo_stop(dev);
	return dev->netdev_ops->ndo_open(dev);
}

static int netxen_nic_get_regs_len(struct net_device *dev)
{
	return NETXEN_NIC_REGS_LEN;
}

static void
netxen_nic_get_regs(struct net_device *dev, struct ethtool_regs *regs, void *p)
{
	struct netxen_adapter *adapter = netdev_priv(dev);
	struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
	struct nx_host_sds_ring *sds_ring;
	u32 *regs_buff = p;
	int ring, i = 0;
	int port = adapter->physical_port;

	memset(p, 0, NETXEN_NIC_REGS_LEN);

	regs->version = (1 << 24) | (adapter->ahw.revision_id << 16) |
	    (adapter->pdev)->device;

	if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
		return;

	regs_buff[i++] = NXRD32(adapter, CRB_CMDPEG_STATE);
	regs_buff[i++] = NXRD32(adapter, CRB_RCVPEG_STATE);
	regs_buff[i++] = NXRD32(adapter, CRB_FW_CAPABILITIES_1);
	regs_buff[i++] = NXRDIO(adapter, adapter->crb_int_state_reg);
	regs_buff[i++] = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
	regs_buff[i++] = NXRD32(adapter, NX_CRB_DEV_STATE);
	regs_buff[i++] = NXRD32(adapter, NETXEN_PEG_ALIVE_COUNTER);
	regs_buff[i++] = NXRD32(adapter, NETXEN_PEG_HALT_STATUS1);
	regs_buff[i++] = NXRD32(adapter, NETXEN_PEG_HALT_STATUS2);

	regs_buff[i++] = NXRD32(adapter, NETXEN_CRB_PEG_NET_0+0x3c);
	regs_buff[i++] = NXRD32(adapter, NETXEN_CRB_PEG_NET_1+0x3c);
	regs_buff[i++] = NXRD32(adapter, NETXEN_CRB_PEG_NET_2+0x3c);
	regs_buff[i++] = NXRD32(adapter, NETXEN_CRB_PEG_NET_3+0x3c);

	if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {

		regs_buff[i++] = NXRD32(adapter, NETXEN_CRB_PEG_NET_4+0x3c);
		i += 2;

		regs_buff[i++] = NXRD32(adapter, CRB_XG_STATE_P3);
		regs_buff[i++] = le32_to_cpu(*(adapter->tx_ring->hw_consumer));

	} else {
		i++;

		regs_buff[i++] = NXRD32(adapter,
					NETXEN_NIU_XGE_CONFIG_0+(0x10000*port));
		regs_buff[i++] = NXRD32(adapter,
					NETXEN_NIU_XGE_CONFIG_1+(0x10000*port));

		regs_buff[i++] = NXRD32(adapter, CRB_XG_STATE);
		regs_buff[i++] = NXRDIO(adapter,
				 adapter->tx_ring->crb_cmd_consumer);
	}

	regs_buff[i++] = NXRDIO(adapter, adapter->tx_ring->crb_cmd_producer);

	regs_buff[i++] = NXRDIO(adapter,
			 recv_ctx->rds_rings[0].crb_rcv_producer);
	regs_buff[i++] = NXRDIO(adapter,
			 recv_ctx->rds_rings[1].crb_rcv_producer);

	regs_buff[i++] = adapter->max_sds_rings;

	for (ring = 0; ring < adapter->max_sds_rings; ring++) {
		sds_ring = &(recv_ctx->sds_rings[ring]);
		regs_buff[i++] = NXRDIO(adapter,
					sds_ring->crb_sts_consumer);
	}
}

static u32 netxen_nic_test_link(struct net_device *dev)
{
	struct netxen_adapter *adapter = netdev_priv(dev);
	u32 val, port;

	port = adapter->physical_port;
	if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
		val = NXRD32(adapter, CRB_XG_STATE_P3);
		val = XG_LINK_STATE_P3(adapter->ahw.pci_func, val);
		return (val == XG_LINK_UP_P3) ? 0 : 1;
	} else {
		val = NXRD32(adapter, CRB_XG_STATE);
		val = (val >> port*8) & 0xff;
		return (val == XG_LINK_UP) ? 0 : 1;
	}
}

static int
netxen_nic_get_eeprom(struct net_device *dev, struct ethtool_eeprom *eeprom,
		      u8 * bytes)
{
	struct netxen_adapter *adapter = netdev_priv(dev);
	int offset;
	int ret;

	if (eeprom->len == 0)
		return -EINVAL;

	eeprom->magic = (adapter->pdev)->vendor |
			((adapter->pdev)->device << 16);
	offset = eeprom->offset;

	ret = netxen_rom_fast_read_words(adapter, offset, bytes,
						eeprom->len);
	if (ret < 0)
		return ret;

	return 0;
}

static void
netxen_nic_get_ringparam(struct net_device *dev,
		struct ethtool_ringparam *ring)
{
	struct netxen_adapter *adapter = netdev_priv(dev);

	ring->rx_pending = adapter->num_rxd;
	ring->rx_jumbo_pending = adapter->num_jumbo_rxd;
	ring->rx_jumbo_pending += adapter->num_lro_rxd;
	ring->tx_pending = adapter->num_txd;

	if (adapter->ahw.port_type == NETXEN_NIC_GBE) {
		ring->rx_max_pending = MAX_RCV_DESCRIPTORS_1G;
		ring->rx_jumbo_max_pending = MAX_JUMBO_RCV_DESCRIPTORS_1G;
	} else {
		ring->rx_max_pending = MAX_RCV_DESCRIPTORS_10G;
		ring->rx_jumbo_max_pending = MAX_JUMBO_RCV_DESCRIPTORS_10G;
	}

	ring->tx_max_pending = MAX_CMD_DESCRIPTORS;
}

static u32
netxen_validate_ringparam(u32 val, u32 min, u32 max, char *r_name)
{
	u32 num_desc;
	num_desc = max(val, min);
	num_desc = min(num_desc, max);
	num_desc = roundup_pow_of_two(num_desc);

	if (val != num_desc) {
		printk(KERN_INFO "%s: setting %s ring size %d instead of %d\n",
		       netxen_nic_driver_name, r_name, num_desc, val);
	}

	return num_desc;
}

static int
netxen_nic_set_ringparam(struct net_device *dev,
		struct ethtool_ringparam *ring)
{
	struct netxen_adapter *adapter = netdev_priv(dev);
	u16 max_rcv_desc = MAX_RCV_DESCRIPTORS_10G;
	u16 max_jumbo_desc = MAX_JUMBO_RCV_DESCRIPTORS_10G;
	u16 num_rxd, num_jumbo_rxd, num_txd;

	if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
		return -EOPNOTSUPP;

	if (ring->rx_mini_pending)
		return -EOPNOTSUPP;

	if (adapter->ahw.port_type == NETXEN_NIC_GBE) {
		max_rcv_desc = MAX_RCV_DESCRIPTORS_1G;
		max_jumbo_desc = MAX_JUMBO_RCV_DESCRIPTORS_10G;
	}

	num_rxd = netxen_validate_ringparam(ring->rx_pending,
			MIN_RCV_DESCRIPTORS, max_rcv_desc, "rx");

	num_jumbo_rxd = netxen_validate_ringparam(ring->rx_jumbo_pending,
			MIN_JUMBO_DESCRIPTORS, max_jumbo_desc, "rx jumbo");

	num_txd = netxen_validate_ringparam(ring->tx_pending,
			MIN_CMD_DESCRIPTORS, MAX_CMD_DESCRIPTORS, "tx");

	if (num_rxd == adapter->num_rxd && num_txd == adapter->num_txd &&
			num_jumbo_rxd == adapter->num_jumbo_rxd)
		return 0;

	adapter->num_rxd = num_rxd;
	adapter->num_jumbo_rxd = num_jumbo_rxd;
	adapter->num_txd = num_txd;

	return netxen_nic_reset_context(adapter);
}

static void
netxen_nic_get_pauseparam(struct net_device *dev,
			  struct ethtool_pauseparam *pause)
{
	struct netxen_adapter *adapter = netdev_priv(dev);
	__u32 val;
	int port = adapter->physical_port;

	if (adapter->ahw.port_type == NETXEN_NIC_GBE) {
		if ((port < 0) || (port > NETXEN_NIU_MAX_GBE_PORTS))
			return;
		/* get flow control settings */
		val = NXRD32(adapter, NETXEN_NIU_GB_MAC_CONFIG_0(port));
		pause->rx_pause = netxen_gb_get_rx_flowctl(val);
		val = NXRD32(adapter, NETXEN_NIU_GB_PAUSE_CTL);
		switch (port) {
			case 0:
				pause->tx_pause = !(netxen_gb_get_gb0_mask(val));
				break;
			case 1:
				pause->tx_pause = !(netxen_gb_get_gb1_mask(val));
				break;
			case 2:
				pause->tx_pause = !(netxen_gb_get_gb2_mask(val));
				break;
			case 3:
			default:
				pause->tx_pause = !(netxen_gb_get_gb3_mask(val));
				break;
		}
	} else if (adapter->ahw.port_type == NETXEN_NIC_XGBE) {
		if ((port < 0) || (port > NETXEN_NIU_MAX_XG_PORTS))
			return;
		pause->rx_pause = 1;
		val = NXRD32(adapter, NETXEN_NIU_XG_PAUSE_CTL);
		if (port == 0)
			pause->tx_pause = !(netxen_xg_get_xg0_mask(val));
		else
			pause->tx_pause = !(netxen_xg_get_xg1_mask(val));
	} else {
		printk(KERN_ERR"%s: Unknown board type: %x\n",
				netxen_nic_driver_name, adapter->ahw.port_type);
	}
}

static int
netxen_nic_set_pauseparam(struct net_device *dev,
			  struct ethtool_pauseparam *pause)
{
	struct netxen_adapter *adapter = netdev_priv(dev);
	__u32 val;
	int port = adapter->physical_port;
	/* read mode */
	if (adapter->ahw.port_type == NETXEN_NIC_GBE) {
		if ((port < 0) || (port > NETXEN_NIU_MAX_GBE_PORTS))
			return -EIO;
		/* set flow control */
		val = NXRD32(adapter, NETXEN_NIU_GB_MAC_CONFIG_0(port));

		if (pause->rx_pause)
			netxen_gb_rx_flowctl(val);
		else
			netxen_gb_unset_rx_flowctl(val);

		NXWR32(adapter, NETXEN_NIU_GB_MAC_CONFIG_0(port),
				val);
		/* set autoneg */
		val = NXRD32(adapter, NETXEN_NIU_GB_PAUSE_CTL);
		switch (port) {
			case 0:
				if (pause->tx_pause)
					netxen_gb_unset_gb0_mask(val);
				else
					netxen_gb_set_gb0_mask(val);
				break;
			case 1:
				if (pause->tx_pause)
					netxen_gb_unset_gb1_mask(val);
				else
					netxen_gb_set_gb1_mask(val);
				break;
			case 2:
				if (pause->tx_pause)
					netxen_gb_unset_gb2_mask(val);
				else
					netxen_gb_set_gb2_mask(val);
				break;
			case 3:
			default:
				if (pause->tx_pause)
					netxen_gb_unset_gb3_mask(val);
				else
					netxen_gb_set_gb3_mask(val);
				break;
		}
		NXWR32(adapter, NETXEN_NIU_GB_PAUSE_CTL, val);
	} else if (adapter->ahw.port_type == NETXEN_NIC_XGBE) {
		if ((port < 0) || (port > NETXEN_NIU_MAX_XG_PORTS))
			return -EIO;
		val = NXRD32(adapter, NETXEN_NIU_XG_PAUSE_CTL);
		if (port == 0) {
			if (pause->tx_pause)
				netxen_xg_unset_xg0_mask(val);
			else
				netxen_xg_set_xg0_mask(val);
		} else {
			if (pause->tx_pause)
				netxen_xg_unset_xg1_mask(val);
			else
				netxen_xg_set_xg1_mask(val);
		}
		NXWR32(adapter, NETXEN_NIU_XG_PAUSE_CTL, val);
	} else {
		printk(KERN_ERR "%s: Unknown board type: %x\n",
				netxen_nic_driver_name,
				adapter->ahw.port_type);
	}
	return 0;
}

static int netxen_nic_reg_test(struct net_device *dev)
{
	struct netxen_adapter *adapter = netdev_priv(dev);
	u32 data_read, data_written;

	data_read = NXRD32(adapter, NETXEN_PCIX_PH_REG(0));
	if ((data_read & 0xffff) != adapter->pdev->vendor)
		return 1;

	if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
		return 0;

	data_written = (u32)0xa5a5a5a5;

	NXWR32(adapter, CRB_SCRATCHPAD_TEST, data_written);
	data_read = NXRD32(adapter, CRB_SCRATCHPAD_TEST);
	if (data_written != data_read)
		return 1;

	return 0;
}

static int netxen_get_sset_count(struct net_device *dev, int sset)
{
	switch (sset) {
	case ETH_SS_TEST:
		return NETXEN_NIC_TEST_LEN;
	case ETH_SS_STATS:
		return NETXEN_NIC_STATS_LEN;
	default:
		return -EOPNOTSUPP;
	}
}

static void
netxen_nic_diag_test(struct net_device *dev, struct ethtool_test *eth_test,
		     u64 * data)
{
	memset(data, 0, sizeof(uint64_t) * NETXEN_NIC_TEST_LEN);
	if ((data[0] = netxen_nic_reg_test(dev)))
		eth_test->flags |= ETH_TEST_FL_FAILED;
	/* link test */
	if ((data[1] = (u64) netxen_nic_test_link(dev)))
		eth_test->flags |= ETH_TEST_FL_FAILED;
}

static void
netxen_nic_get_strings(struct net_device *dev, u32 stringset, u8 * data)
{
	int index;

	switch (stringset) {
	case ETH_SS_TEST:
		memcpy(data, *netxen_nic_gstrings_test,
		       NETXEN_NIC_TEST_LEN * ETH_GSTRING_LEN);
		break;
	case ETH_SS_STATS:
		for (index = 0; index < NETXEN_NIC_STATS_LEN; index++) {
			memcpy(data + index * ETH_GSTRING_LEN,
			       netxen_nic_gstrings_stats[index].stat_string,
			       ETH_GSTRING_LEN);
		}
		break;
	}
}

static void
netxen_nic_get_ethtool_stats(struct net_device *dev,
			     struct ethtool_stats *stats, u64 * data)
{
	struct netxen_adapter *adapter = netdev_priv(dev);
	int index;

	for (index = 0; index < NETXEN_NIC_STATS_LEN; index++) {
		char *p =
		    (char *)adapter +
		    netxen_nic_gstrings_stats[index].stat_offset;
		data[index] =
		    (netxen_nic_gstrings_stats[index].sizeof_stat ==
		     sizeof(u64)) ? *(u64 *) p : *(u32 *) p;
	}
}

static void
netxen_nic_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
{
	struct netxen_adapter *adapter = netdev_priv(dev);
	u32 wol_cfg = 0;

	wol->supported = 0;
	wol->wolopts = 0;

	if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
		return;

	wol_cfg = NXRD32(adapter, NETXEN_WOL_CONFIG_NV);
	if (wol_cfg & (1UL << adapter->portnum))
		wol->supported |= WAKE_MAGIC;

	wol_cfg = NXRD32(adapter, NETXEN_WOL_CONFIG);
	if (wol_cfg & (1UL << adapter->portnum))
		wol->wolopts |= WAKE_MAGIC;
}

static int
netxen_nic_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
{
	struct netxen_adapter *adapter = netdev_priv(dev);
	u32 wol_cfg = 0;

	if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
		return -EOPNOTSUPP;

	if (wol->wolopts & ~WAKE_MAGIC)
		return -EOPNOTSUPP;

	wol_cfg = NXRD32(adapter, NETXEN_WOL_CONFIG_NV);
	if (!(wol_cfg & (1 << adapter->portnum)))
		return -EOPNOTSUPP;

	wol_cfg = NXRD32(adapter, NETXEN_WOL_CONFIG);
	if (wol->wolopts & WAKE_MAGIC)
		wol_cfg |= 1UL << adapter->portnum;
	else
		wol_cfg &= ~(1UL << adapter->portnum);
	NXWR32(adapter, NETXEN_WOL_CONFIG, wol_cfg);

	return 0;
}

/*
 * Set the coalescing parameters. Currently only normal is supported.
 * If rx_coalesce_usecs == 0 or rx_max_coalesced_frames == 0 then set the
 * firmware coalescing to default.
 */
static int netxen_set_intr_coalesce(struct net_device *netdev,
			struct ethtool_coalesce *ethcoal)
{
	struct netxen_adapter *adapter = netdev_priv(netdev);

	if (!NX_IS_REVISION_P3(adapter->ahw.revision_id))
		return -EINVAL;

	if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
		return -EINVAL;

	/*
	* Return Error if unsupported values or
	* unsupported parameters are set.
	*/
	if (ethcoal->rx_coalesce_usecs > 0xffff ||
		ethcoal->rx_max_coalesced_frames > 0xffff ||
		ethcoal->tx_coalesce_usecs > 0xffff ||
		ethcoal->tx_max_coalesced_frames > 0xffff ||
		ethcoal->rx_coalesce_usecs_irq ||
		ethcoal->rx_max_coalesced_frames_irq ||
		ethcoal->tx_coalesce_usecs_irq ||
		ethcoal->tx_max_coalesced_frames_irq ||
		ethcoal->stats_block_coalesce_usecs ||
		ethcoal->use_adaptive_rx_coalesce ||
		ethcoal->use_adaptive_tx_coalesce ||
		ethcoal->pkt_rate_low ||
		ethcoal->rx_coalesce_usecs_low ||
		ethcoal->rx_max_coalesced_frames_low ||
		ethcoal->tx_coalesce_usecs_low ||
		ethcoal->tx_max_coalesced_frames_low ||
		ethcoal->pkt_rate_high ||
		ethcoal->rx_coalesce_usecs_high ||
		ethcoal->rx_max_coalesced_frames_high ||
		ethcoal->tx_coalesce_usecs_high ||
		ethcoal->tx_max_coalesced_frames_high)
		return -EINVAL;

	if (!ethcoal->rx_coalesce_usecs ||
		!ethcoal->rx_max_coalesced_frames) {
		adapter->coal.flags = NETXEN_NIC_INTR_DEFAULT;
		adapter->coal.normal.data.rx_time_us =
			NETXEN_DEFAULT_INTR_COALESCE_RX_TIME_US;
		adapter->coal.normal.data.rx_packets =
			NETXEN_DEFAULT_INTR_COALESCE_RX_PACKETS;
	} else {
		adapter->coal.flags = 0;
		adapter->coal.normal.data.rx_time_us =
		ethcoal->rx_coalesce_usecs;
		adapter->coal.normal.data.rx_packets =
		ethcoal->rx_max_coalesced_frames;
	}
	adapter->coal.normal.data.tx_time_us = ethcoal->tx_coalesce_usecs;
	adapter->coal.normal.data.tx_packets =
	ethcoal->tx_max_coalesced_frames;

	netxen_config_intr_coalesce(adapter);

	return 0;
}

static int netxen_get_intr_coalesce(struct net_device *netdev,
			struct ethtool_coalesce *ethcoal)
{
	struct netxen_adapter *adapter = netdev_priv(netdev);

	if (!NX_IS_REVISION_P3(adapter->ahw.revision_id))
		return -EINVAL;

	if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
		return -EINVAL;

	ethcoal->rx_coalesce_usecs = adapter->coal.normal.data.rx_time_us;
	ethcoal->tx_coalesce_usecs = adapter->coal.normal.data.tx_time_us;
	ethcoal->rx_max_coalesced_frames =
		adapter->coal.normal.data.rx_packets;
	ethcoal->tx_max_coalesced_frames =
		adapter->coal.normal.data.tx_packets;

	return 0;
}

static int
netxen_get_dump_flag(struct net_device *netdev, struct ethtool_dump *dump)
{
	struct netxen_adapter *adapter = netdev_priv(netdev);
	struct netxen_minidump *mdump = &adapter->mdump;
	if (adapter->fw_mdump_rdy)
		dump->len = mdump->md_dump_size;
	else
		dump->len = 0;
	dump->flag = mdump->md_capture_mask;
	dump->version = adapter->fw_version;
	return 0;
}

static int
netxen_set_dump(struct net_device *netdev, struct ethtool_dump *val)
{
	int ret = 0;
	struct netxen_adapter *adapter = netdev_priv(netdev);
	struct netxen_minidump *mdump = &adapter->mdump;

	switch (val->flag) {
	case NX_FORCE_FW_DUMP_KEY:
		if (!mdump->md_enabled)
			mdump->md_enabled = 1;
		if (adapter->fw_mdump_rdy) {
			netdev_info(netdev, "Previous dump not cleared, not forcing dump\n");
			return ret;
		}
		netdev_info(netdev, "Forcing a fw dump\n");
		nx_dev_request_reset(adapter);
		break;
	case NX_DISABLE_FW_DUMP:
		if (mdump->md_enabled) {
			netdev_info(netdev, "Disabling FW Dump\n");
			mdump->md_enabled = 0;
		}
		break;
	case NX_ENABLE_FW_DUMP:
		if (!mdump->md_enabled) {
			netdev_info(netdev, "Enabling FW dump\n");
			mdump->md_enabled = 1;
		}
		break;
	case NX_FORCE_FW_RESET:
		netdev_info(netdev, "Forcing FW reset\n");
		nx_dev_request_reset(adapter);
		adapter->flags &= ~NETXEN_FW_RESET_OWNER;
		break;
	default:
		if (val->flag <= NX_DUMP_MASK_MAX &&
			val->flag >= NX_DUMP_MASK_MIN) {
			mdump->md_capture_mask = val->flag & 0xff;
			netdev_info(netdev, "Driver mask changed to: 0x%x\n",
					mdump->md_capture_mask);
			break;
		}
		netdev_info(netdev,
			"Invalid dump level: 0x%x\n", val->flag);
		return -EINVAL;
	}

	return ret;
}

static int
netxen_get_dump_data(struct net_device *netdev, struct ethtool_dump *dump,
			void *buffer)
{
	int i, copy_sz;
	u32 *hdr_ptr, *data;
	struct netxen_adapter *adapter = netdev_priv(netdev);
	struct netxen_minidump *mdump = &adapter->mdump;


	if (!adapter->fw_mdump_rdy) {
		netdev_info(netdev, "Dump not available\n");
		return -EINVAL;
	}
	/* Copy template header first */
	copy_sz = mdump->md_template_size;
	hdr_ptr = (u32 *) mdump->md_template;
	data = buffer;
	for (i = 0; i < copy_sz/sizeof(u32); i++)
		*data++ = cpu_to_le32(*hdr_ptr++);

	/* Copy captured dump data */
	memcpy(buffer + copy_sz,
		mdump->md_capture_buff + mdump->md_template_size,
			mdump->md_capture_size);
	dump->len = copy_sz + mdump->md_capture_size;
	dump->flag = mdump->md_capture_mask;

	/* Free dump area once data has been captured */
	vfree(mdump->md_capture_buff);
	mdump->md_capture_buff = NULL;
	adapter->fw_mdump_rdy = 0;
	netdev_info(netdev, "extracted the fw dump Successfully\n");
	return 0;
}

const struct ethtool_ops netxen_nic_ethtool_ops = {
	.get_settings = netxen_nic_get_settings,
	.set_settings = netxen_nic_set_settings,
	.get_drvinfo = netxen_nic_get_drvinfo,
	.get_regs_len = netxen_nic_get_regs_len,
	.get_regs = netxen_nic_get_regs,
	.get_link = ethtool_op_get_link,
	.get_eeprom_len = netxen_nic_get_eeprom_len,
	.get_eeprom = netxen_nic_get_eeprom,
	.get_ringparam = netxen_nic_get_ringparam,
	.set_ringparam = netxen_nic_set_ringparam,
	.get_pauseparam = netxen_nic_get_pauseparam,
	.set_pauseparam = netxen_nic_set_pauseparam,
	.get_wol = netxen_nic_get_wol,
	.set_wol = netxen_nic_set_wol,
	.self_test = netxen_nic_diag_test,
	.get_strings = netxen_nic_get_strings,
	.get_ethtool_stats = netxen_nic_get_ethtool_stats,
	.get_sset_count = netxen_get_sset_count,
	.get_coalesce = netxen_get_intr_coalesce,
	.set_coalesce = netxen_set_intr_coalesce,
	.get_dump_flag = netxen_get_dump_flag,
	.get_dump_data = netxen_get_dump_data,
	.set_dump = netxen_set_dump,
};