summaryrefslogtreecommitdiff
path: root/drivers/net/ethernet/intel/i40e/i40e_debugfs.c
blob: b829fd3656932a47a0add2bb77b2cf7087355125 (plain)
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
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
1745
1746
1747
1748
1749
1750
1751
1752
1753
1754
1755
1756
1757
1758
1759
1760
1761
1762
1763
1764
1765
1766
1767
1768
1769
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
1780
1781
1782
1783
1784
1785
1786
1787
1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1802
1803
1804
1805
1806
1807
1808
1809
1810
1811
1812
1813
1814
1815
1816
1817
1818
1819
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
1830
1831
1832
1833
1834
1835
1836
1837
/*******************************************************************************
 *
 * Intel Ethernet Controller XL710 Family Linux Driver
 * Copyright(c) 2013 - 2016 Intel Corporation.
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms and conditions of the GNU General Public License,
 * version 2, as published by the Free Software Foundation.
 *
 * This program is distributed in the hope 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, see <http://www.gnu.org/licenses/>.
 *
 * The full GNU General Public License is included in this distribution in
 * the file called "COPYING".
 *
 * Contact Information:
 * e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
 *
 ******************************************************************************/

#ifdef CONFIG_DEBUG_FS

#include <linux/fs.h>
#include <linux/debugfs.h>

#include "i40e.h"

static struct dentry *i40e_dbg_root;

/**
 * i40e_dbg_find_vsi - searches for the vsi with the given seid
 * @pf - the PF structure to search for the vsi
 * @seid - seid of the vsi it is searching for
 **/
static struct i40e_vsi *i40e_dbg_find_vsi(struct i40e_pf *pf, int seid)
{
	int i;

	if (seid < 0)
		dev_info(&pf->pdev->dev, "%d: bad seid\n", seid);
	else
		for (i = 0; i < pf->num_alloc_vsi; i++)
			if (pf->vsi[i] && (pf->vsi[i]->seid == seid))
				return pf->vsi[i];

	return NULL;
}

/**
 * i40e_dbg_find_veb - searches for the veb with the given seid
 * @pf - the PF structure to search for the veb
 * @seid - seid of the veb it is searching for
 **/
static struct i40e_veb *i40e_dbg_find_veb(struct i40e_pf *pf, int seid)
{
	int i;

	for (i = 0; i < I40E_MAX_VEB; i++)
		if (pf->veb[i] && pf->veb[i]->seid == seid)
			return pf->veb[i];
	return NULL;
}

/**************************************************************
 * command
 * The command entry in debugfs is for giving the driver commands
 * to be executed - these may be for changing the internal switch
 * setup, adding or removing filters, or other things.  Many of
 * these will be useful for some forms of unit testing.
 **************************************************************/
static char i40e_dbg_command_buf[256] = "";

/**
 * i40e_dbg_command_read - read for command datum
 * @filp: the opened file
 * @buffer: where to write the data for the user to read
 * @count: the size of the user's buffer
 * @ppos: file position offset
 **/
static ssize_t i40e_dbg_command_read(struct file *filp, char __user *buffer,
				     size_t count, loff_t *ppos)
{
	struct i40e_pf *pf = filp->private_data;
	int bytes_not_copied;
	int buf_size = 256;
	char *buf;
	int len;

	/* don't allow partial reads */
	if (*ppos != 0)
		return 0;
	if (count < buf_size)
		return -ENOSPC;

	buf = kzalloc(buf_size, GFP_KERNEL);
	if (!buf)
		return -ENOSPC;

	len = snprintf(buf, buf_size, "%s: %s\n",
		       pf->vsi[pf->lan_vsi]->netdev->name,
		       i40e_dbg_command_buf);

	bytes_not_copied = copy_to_user(buffer, buf, len);
	kfree(buf);

	if (bytes_not_copied)
		return -EFAULT;

	*ppos = len;
	return len;
}

static char *i40e_filter_state_string[] = {
	"INVALID",
	"NEW",
	"ACTIVE",
	"FAILED",
	"REMOVE",
};

/**
 * i40e_dbg_dump_vsi_seid - handles dump vsi seid write into command datum
 * @pf: the i40e_pf created in command write
 * @seid: the seid the user put in
 **/
static void i40e_dbg_dump_vsi_seid(struct i40e_pf *pf, int seid)
{
	struct rtnl_link_stats64 *nstat;
	struct i40e_mac_filter *f;
	struct i40e_vsi *vsi;
	int i, bkt;

	vsi = i40e_dbg_find_vsi(pf, seid);
	if (!vsi) {
		dev_info(&pf->pdev->dev,
			 "dump %d: seid not found\n", seid);
		return;
	}
	dev_info(&pf->pdev->dev, "vsi seid %d\n", seid);
	if (vsi->netdev) {
		struct net_device *nd = vsi->netdev;

		dev_info(&pf->pdev->dev, "    netdev: name = %s, state = %lu, flags = 0x%08x\n",
			 nd->name, nd->state, nd->flags);
		dev_info(&pf->pdev->dev, "        features      = 0x%08lx\n",
			 (unsigned long int)nd->features);
		dev_info(&pf->pdev->dev, "        hw_features   = 0x%08lx\n",
			 (unsigned long int)nd->hw_features);
		dev_info(&pf->pdev->dev, "        vlan_features = 0x%08lx\n",
			 (unsigned long int)nd->vlan_features);
	}
	dev_info(&pf->pdev->dev, "    active_vlans is %s\n",
		 vsi->active_vlans ? "<valid>" : "<null>");
	dev_info(&pf->pdev->dev,
		 "    flags = 0x%08lx, netdev_registered = %i, current_netdev_flags = 0x%04x\n",
		 vsi->flags, vsi->netdev_registered, vsi->current_netdev_flags);
	for (i = 0; i < BITS_TO_LONGS(__I40E_VSI_STATE_SIZE__); i++)
		dev_info(&pf->pdev->dev,
			 "    state[%d] = %08lx\n",
			 i, vsi->state[i]);
	if (vsi == pf->vsi[pf->lan_vsi])
		dev_info(&pf->pdev->dev, "    MAC address: %pM SAN MAC: %pM Port MAC: %pM\n",
			 pf->hw.mac.addr,
			 pf->hw.mac.san_addr,
			 pf->hw.mac.port_addr);
	hash_for_each(vsi->mac_filter_hash, bkt, f, hlist) {
		dev_info(&pf->pdev->dev,
			 "    mac_filter_hash: %pM vid=%d, state %s\n",
			 f->macaddr, f->vlan,
			 i40e_filter_state_string[f->state]);
	}
	dev_info(&pf->pdev->dev, "    active_filters %u, promisc_threshold %u, overflow promisc %s\n",
		 vsi->active_filters, vsi->promisc_threshold,
		 (test_bit(__I40E_VSI_OVERFLOW_PROMISC, vsi->state) ?
		  "ON" : "OFF"));
	nstat = i40e_get_vsi_stats_struct(vsi);
	dev_info(&pf->pdev->dev,
		 "    net_stats: rx_packets = %lu, rx_bytes = %lu, rx_errors = %lu, rx_dropped = %lu\n",
		 (unsigned long int)nstat->rx_packets,
		 (unsigned long int)nstat->rx_bytes,
		 (unsigned long int)nstat->rx_errors,
		 (unsigned long int)nstat->rx_dropped);
	dev_info(&pf->pdev->dev,
		 "    net_stats: tx_packets = %lu, tx_bytes = %lu, tx_errors = %lu, tx_dropped = %lu\n",
		 (unsigned long int)nstat->tx_packets,
		 (unsigned long int)nstat->tx_bytes,
		 (unsigned long int)nstat->tx_errors,
		 (unsigned long int)nstat->tx_dropped);
	dev_info(&pf->pdev->dev,
		 "    net_stats: multicast = %lu, collisions = %lu\n",
		 (unsigned long int)nstat->multicast,
		 (unsigned long int)nstat->collisions);
	dev_info(&pf->pdev->dev,
		 "    net_stats: rx_length_errors = %lu, rx_over_errors = %lu, rx_crc_errors = %lu\n",
		 (unsigned long int)nstat->rx_length_errors,
		 (unsigned long int)nstat->rx_over_errors,
		 (unsigned long int)nstat->rx_crc_errors);
	dev_info(&pf->pdev->dev,
		 "    net_stats: rx_frame_errors = %lu, rx_fifo_errors = %lu, rx_missed_errors = %lu\n",
		 (unsigned long int)nstat->rx_frame_errors,
		 (unsigned long int)nstat->rx_fifo_errors,
		 (unsigned long int)nstat->rx_missed_errors);
	dev_info(&pf->pdev->dev,
		 "    net_stats: tx_aborted_errors = %lu, tx_carrier_errors = %lu, tx_fifo_errors = %lu\n",
		 (unsigned long int)nstat->tx_aborted_errors,
		 (unsigned long int)nstat->tx_carrier_errors,
		 (unsigned long int)nstat->tx_fifo_errors);
	dev_info(&pf->pdev->dev,
		 "    net_stats: tx_heartbeat_errors = %lu, tx_window_errors = %lu\n",
		 (unsigned long int)nstat->tx_heartbeat_errors,
		 (unsigned long int)nstat->tx_window_errors);
	dev_info(&pf->pdev->dev,
		 "    net_stats: rx_compressed = %lu, tx_compressed = %lu\n",
		 (unsigned long int)nstat->rx_compressed,
		 (unsigned long int)nstat->tx_compressed);
	dev_info(&pf->pdev->dev,
		 "    net_stats_offsets: rx_packets = %lu, rx_bytes = %lu, rx_errors = %lu, rx_dropped = %lu\n",
		 (unsigned long int)vsi->net_stats_offsets.rx_packets,
		 (unsigned long int)vsi->net_stats_offsets.rx_bytes,
		 (unsigned long int)vsi->net_stats_offsets.rx_errors,
		 (unsigned long int)vsi->net_stats_offsets.rx_dropped);
	dev_info(&pf->pdev->dev,
		 "    net_stats_offsets: tx_packets = %lu, tx_bytes = %lu, tx_errors = %lu, tx_dropped = %lu\n",
		 (unsigned long int)vsi->net_stats_offsets.tx_packets,
		 (unsigned long int)vsi->net_stats_offsets.tx_bytes,
		 (unsigned long int)vsi->net_stats_offsets.tx_errors,
		 (unsigned long int)vsi->net_stats_offsets.tx_dropped);
	dev_info(&pf->pdev->dev,
		 "    net_stats_offsets: multicast = %lu, collisions = %lu\n",
		 (unsigned long int)vsi->net_stats_offsets.multicast,
		 (unsigned long int)vsi->net_stats_offsets.collisions);
	dev_info(&pf->pdev->dev,
		 "    net_stats_offsets: rx_length_errors = %lu, rx_over_errors = %lu, rx_crc_errors = %lu\n",
		 (unsigned long int)vsi->net_stats_offsets.rx_length_errors,
		 (unsigned long int)vsi->net_stats_offsets.rx_over_errors,
		 (unsigned long int)vsi->net_stats_offsets.rx_crc_errors);
	dev_info(&pf->pdev->dev,
		 "    net_stats_offsets: rx_frame_errors = %lu, rx_fifo_errors = %lu, rx_missed_errors = %lu\n",
		 (unsigned long int)vsi->net_stats_offsets.rx_frame_errors,
		 (unsigned long int)vsi->net_stats_offsets.rx_fifo_errors,
		 (unsigned long int)vsi->net_stats_offsets.rx_missed_errors);
	dev_info(&pf->pdev->dev,
		 "    net_stats_offsets: tx_aborted_errors = %lu, tx_carrier_errors = %lu, tx_fifo_errors = %lu\n",
		 (unsigned long int)vsi->net_stats_offsets.tx_aborted_errors,
		 (unsigned long int)vsi->net_stats_offsets.tx_carrier_errors,
		 (unsigned long int)vsi->net_stats_offsets.tx_fifo_errors);
	dev_info(&pf->pdev->dev,
		 "    net_stats_offsets: tx_heartbeat_errors = %lu, tx_window_errors = %lu\n",
		 (unsigned long int)vsi->net_stats_offsets.tx_heartbeat_errors,
		 (unsigned long int)vsi->net_stats_offsets.tx_window_errors);
	dev_info(&pf->pdev->dev,
		 "    net_stats_offsets: rx_compressed = %lu, tx_compressed = %lu\n",
		 (unsigned long int)vsi->net_stats_offsets.rx_compressed,
		 (unsigned long int)vsi->net_stats_offsets.tx_compressed);
	dev_info(&pf->pdev->dev,
		 "    tx_restart = %d, tx_busy = %d, rx_buf_failed = %d, rx_page_failed = %d\n",
		 vsi->tx_restart, vsi->tx_busy,
		 vsi->rx_buf_failed, vsi->rx_page_failed);
	rcu_read_lock();
	for (i = 0; i < vsi->num_queue_pairs; i++) {
		struct i40e_ring *rx_ring = READ_ONCE(vsi->rx_rings[i]);

		if (!rx_ring)
			continue;

		dev_info(&pf->pdev->dev,
			 "    rx_rings[%i]: state = %lu, queue_index = %d, reg_idx = %d\n",
			 i, *rx_ring->state,
			 rx_ring->queue_index,
			 rx_ring->reg_idx);
		dev_info(&pf->pdev->dev,
			 "    rx_rings[%i]: rx_buf_len = %d\n",
			 i, rx_ring->rx_buf_len);
		dev_info(&pf->pdev->dev,
			 "    rx_rings[%i]: next_to_use = %d, next_to_clean = %d, ring_active = %i\n",
			 i,
			 rx_ring->next_to_use,
			 rx_ring->next_to_clean,
			 rx_ring->ring_active);
		dev_info(&pf->pdev->dev,
			 "    rx_rings[%i]: rx_stats: packets = %lld, bytes = %lld, non_eop_descs = %lld\n",
			 i, rx_ring->stats.packets,
			 rx_ring->stats.bytes,
			 rx_ring->rx_stats.non_eop_descs);
		dev_info(&pf->pdev->dev,
			 "    rx_rings[%i]: rx_stats: alloc_page_failed = %lld, alloc_buff_failed = %lld\n",
			 i,
			 rx_ring->rx_stats.alloc_page_failed,
			 rx_ring->rx_stats.alloc_buff_failed);
		dev_info(&pf->pdev->dev,
			 "    rx_rings[%i]: rx_stats: realloc_count = %lld, page_reuse_count = %lld\n",
			 i,
			 rx_ring->rx_stats.realloc_count,
			 rx_ring->rx_stats.page_reuse_count);
		dev_info(&pf->pdev->dev,
			 "    rx_rings[%i]: size = %i\n",
			 i, rx_ring->size);
		dev_info(&pf->pdev->dev,
			 "    rx_rings[%i]: itr_setting = %d (%s)\n",
			 i, rx_ring->itr_setting,
			 ITR_IS_DYNAMIC(rx_ring->itr_setting) ? "dynamic" : "fixed");
	}
	for (i = 0; i < vsi->num_queue_pairs; i++) {
		struct i40e_ring *tx_ring = READ_ONCE(vsi->tx_rings[i]);

		if (!tx_ring)
			continue;

		dev_info(&pf->pdev->dev,
			 "    tx_rings[%i]: state = %lu, queue_index = %d, reg_idx = %d\n",
			 i, *tx_ring->state,
			 tx_ring->queue_index,
			 tx_ring->reg_idx);
		dev_info(&pf->pdev->dev,
			 "    tx_rings[%i]: next_to_use = %d, next_to_clean = %d, ring_active = %i\n",
			 i,
			 tx_ring->next_to_use,
			 tx_ring->next_to_clean,
			 tx_ring->ring_active);
		dev_info(&pf->pdev->dev,
			 "    tx_rings[%i]: tx_stats: packets = %lld, bytes = %lld, restart_queue = %lld\n",
			 i, tx_ring->stats.packets,
			 tx_ring->stats.bytes,
			 tx_ring->tx_stats.restart_queue);
		dev_info(&pf->pdev->dev,
			 "    tx_rings[%i]: tx_stats: tx_busy = %lld, tx_done_old = %lld\n",
			 i,
			 tx_ring->tx_stats.tx_busy,
			 tx_ring->tx_stats.tx_done_old);
		dev_info(&pf->pdev->dev,
			 "    tx_rings[%i]: size = %i\n",
			 i, tx_ring->size);
		dev_info(&pf->pdev->dev,
			 "    tx_rings[%i]: DCB tc = %d\n",
			 i, tx_ring->dcb_tc);
		dev_info(&pf->pdev->dev,
			 "    tx_rings[%i]: itr_setting = %d (%s)\n",
			 i, tx_ring->itr_setting,
			 ITR_IS_DYNAMIC(tx_ring->itr_setting) ? "dynamic" : "fixed");
	}
	rcu_read_unlock();
	dev_info(&pf->pdev->dev,
		 "    work_limit = %d\n",
		 vsi->work_limit);
	dev_info(&pf->pdev->dev,
		 "    max_frame = %d, rx_buf_len = %d dtype = %d\n",
		 vsi->max_frame, vsi->rx_buf_len, 0);
	dev_info(&pf->pdev->dev,
		 "    num_q_vectors = %i, base_vector = %i\n",
		 vsi->num_q_vectors, vsi->base_vector);
	dev_info(&pf->pdev->dev,
		 "    seid = %d, id = %d, uplink_seid = %d\n",
		 vsi->seid, vsi->id, vsi->uplink_seid);
	dev_info(&pf->pdev->dev,
		 "    base_queue = %d, num_queue_pairs = %d, num_desc = %d\n",
		 vsi->base_queue, vsi->num_queue_pairs, vsi->num_desc);
	dev_info(&pf->pdev->dev, "    type = %i\n", vsi->type);
	if (vsi->type == I40E_VSI_SRIOV)
		dev_info(&pf->pdev->dev, "    VF ID = %i\n", vsi->vf_id);
	dev_info(&pf->pdev->dev,
		 "    info: valid_sections = 0x%04x, switch_id = 0x%04x\n",
		 vsi->info.valid_sections, vsi->info.switch_id);
	dev_info(&pf->pdev->dev,
		 "    info: sw_reserved[] = 0x%02x 0x%02x\n",
		 vsi->info.sw_reserved[0], vsi->info.sw_reserved[1]);
	dev_info(&pf->pdev->dev,
		 "    info: sec_flags = 0x%02x, sec_reserved = 0x%02x\n",
		 vsi->info.sec_flags, vsi->info.sec_reserved);
	dev_info(&pf->pdev->dev,
		 "    info: pvid = 0x%04x, fcoe_pvid = 0x%04x, port_vlan_flags = 0x%02x\n",
		 vsi->info.pvid, vsi->info.fcoe_pvid,
		 vsi->info.port_vlan_flags);
	dev_info(&pf->pdev->dev,
		 "    info: pvlan_reserved[] = 0x%02x 0x%02x 0x%02x\n",
		 vsi->info.pvlan_reserved[0], vsi->info.pvlan_reserved[1],
		 vsi->info.pvlan_reserved[2]);
	dev_info(&pf->pdev->dev,
		 "    info: ingress_table = 0x%08x, egress_table = 0x%08x\n",
		 vsi->info.ingress_table, vsi->info.egress_table);
	dev_info(&pf->pdev->dev,
		 "    info: cas_pv_stag = 0x%04x, cas_pv_flags= 0x%02x, cas_pv_reserved = 0x%02x\n",
		 vsi->info.cas_pv_tag, vsi->info.cas_pv_flags,
		 vsi->info.cas_pv_reserved);
	dev_info(&pf->pdev->dev,
		 "    info: queue_mapping[0..7 ] = 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x\n",
		 vsi->info.queue_mapping[0], vsi->info.queue_mapping[1],
		 vsi->info.queue_mapping[2], vsi->info.queue_mapping[3],
		 vsi->info.queue_mapping[4], vsi->info.queue_mapping[5],
		 vsi->info.queue_mapping[6], vsi->info.queue_mapping[7]);
	dev_info(&pf->pdev->dev,
		 "    info: queue_mapping[8..15] = 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x\n",
		 vsi->info.queue_mapping[8], vsi->info.queue_mapping[9],
		 vsi->info.queue_mapping[10], vsi->info.queue_mapping[11],
		 vsi->info.queue_mapping[12], vsi->info.queue_mapping[13],
		 vsi->info.queue_mapping[14], vsi->info.queue_mapping[15]);
	dev_info(&pf->pdev->dev,
		 "    info: tc_mapping[] = 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x\n",
		 vsi->info.tc_mapping[0], vsi->info.tc_mapping[1],
		 vsi->info.tc_mapping[2], vsi->info.tc_mapping[3],
		 vsi->info.tc_mapping[4], vsi->info.tc_mapping[5],
		 vsi->info.tc_mapping[6], vsi->info.tc_mapping[7]);
	dev_info(&pf->pdev->dev,
		 "    info: queueing_opt_flags = 0x%02x  queueing_opt_reserved[0..2] = 0x%02x 0x%02x 0x%02x\n",
		 vsi->info.queueing_opt_flags,
		 vsi->info.queueing_opt_reserved[0],
		 vsi->info.queueing_opt_reserved[1],
		 vsi->info.queueing_opt_reserved[2]);
	dev_info(&pf->pdev->dev,
		 "    info: up_enable_bits = 0x%02x\n",
		 vsi->info.up_enable_bits);
	dev_info(&pf->pdev->dev,
		 "    info: sched_reserved = 0x%02x, outer_up_table = 0x%04x\n",
		 vsi->info.sched_reserved, vsi->info.outer_up_table);
	dev_info(&pf->pdev->dev,
		 "    info: cmd_reserved[] = 0x%02x 0x%02x 0x%02x 0x0%02x 0x%02x 0x%02x 0x%02x 0x0%02x\n",
		 vsi->info.cmd_reserved[0], vsi->info.cmd_reserved[1],
		 vsi->info.cmd_reserved[2], vsi->info.cmd_reserved[3],
		 vsi->info.cmd_reserved[4], vsi->info.cmd_reserved[5],
		 vsi->info.cmd_reserved[6], vsi->info.cmd_reserved[7]);
	dev_info(&pf->pdev->dev,
		 "    info: qs_handle[] = 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x\n",
		 vsi->info.qs_handle[0], vsi->info.qs_handle[1],
		 vsi->info.qs_handle[2], vsi->info.qs_handle[3],
		 vsi->info.qs_handle[4], vsi->info.qs_handle[5],
		 vsi->info.qs_handle[6], vsi->info.qs_handle[7]);
	dev_info(&pf->pdev->dev,
		 "    info: stat_counter_idx = 0x%04x, sched_id = 0x%04x\n",
		 vsi->info.stat_counter_idx, vsi->info.sched_id);
	dev_info(&pf->pdev->dev,
		 "    info: resp_reserved[] = 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x\n",
		 vsi->info.resp_reserved[0], vsi->info.resp_reserved[1],
		 vsi->info.resp_reserved[2], vsi->info.resp_reserved[3],
		 vsi->info.resp_reserved[4], vsi->info.resp_reserved[5],
		 vsi->info.resp_reserved[6], vsi->info.resp_reserved[7],
		 vsi->info.resp_reserved[8], vsi->info.resp_reserved[9],
		 vsi->info.resp_reserved[10], vsi->info.resp_reserved[11]);
	dev_info(&pf->pdev->dev, "    idx = %d\n", vsi->idx);
	dev_info(&pf->pdev->dev,
		 "    tc_config: numtc = %d, enabled_tc = 0x%x\n",
		 vsi->tc_config.numtc, vsi->tc_config.enabled_tc);
	for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
		dev_info(&pf->pdev->dev,
			 "    tc_config: tc = %d, qoffset = %d, qcount = %d, netdev_tc = %d\n",
			 i, vsi->tc_config.tc_info[i].qoffset,
			 vsi->tc_config.tc_info[i].qcount,
			 vsi->tc_config.tc_info[i].netdev_tc);
	}
	dev_info(&pf->pdev->dev,
		 "    bw: bw_limit = %d, bw_max_quanta = %d\n",
		 vsi->bw_limit, vsi->bw_max_quanta);
	for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
		dev_info(&pf->pdev->dev,
			 "    bw[%d]: ets_share_credits = %d, ets_limit_credits = %d, max_quanta = %d\n",
			 i, vsi->bw_ets_share_credits[i],
			 vsi->bw_ets_limit_credits[i],
			 vsi->bw_ets_max_quanta[i]);
	}
}

/**
 * i40e_dbg_dump_aq_desc - handles dump aq_desc write into command datum
 * @pf: the i40e_pf created in command write
 **/
static void i40e_dbg_dump_aq_desc(struct i40e_pf *pf)
{
	struct i40e_adminq_ring *ring;
	struct i40e_hw *hw = &pf->hw;
	char hdr[32];
	int i;

	snprintf(hdr, sizeof(hdr), "%s %s:         ",
		 dev_driver_string(&pf->pdev->dev),
		 dev_name(&pf->pdev->dev));

	/* first the send (command) ring, then the receive (event) ring */
	dev_info(&pf->pdev->dev, "AdminQ Tx Ring\n");
	ring = &(hw->aq.asq);
	for (i = 0; i < ring->count; i++) {
		struct i40e_aq_desc *d = I40E_ADMINQ_DESC(*ring, i);

		dev_info(&pf->pdev->dev,
			 "   at[%02d] flags=0x%04x op=0x%04x dlen=0x%04x ret=0x%04x cookie_h=0x%08x cookie_l=0x%08x\n",
			 i, d->flags, d->opcode, d->datalen, d->retval,
			 d->cookie_high, d->cookie_low);
		print_hex_dump(KERN_INFO, hdr, DUMP_PREFIX_NONE,
			       16, 1, d->params.raw, 16, 0);
	}

	dev_info(&pf->pdev->dev, "AdminQ Rx Ring\n");
	ring = &(hw->aq.arq);
	for (i = 0; i < ring->count; i++) {
		struct i40e_aq_desc *d = I40E_ADMINQ_DESC(*ring, i);

		dev_info(&pf->pdev->dev,
			 "   ar[%02d] flags=0x%04x op=0x%04x dlen=0x%04x ret=0x%04x cookie_h=0x%08x cookie_l=0x%08x\n",
			 i, d->flags, d->opcode, d->datalen, d->retval,
			 d->cookie_high, d->cookie_low);
		print_hex_dump(KERN_INFO, hdr, DUMP_PREFIX_NONE,
			       16, 1, d->params.raw, 16, 0);
	}
}

/**
 * i40e_dbg_dump_desc - handles dump desc write into command datum
 * @cnt: number of arguments that the user supplied
 * @vsi_seid: vsi id entered by user
 * @ring_id: ring id entered by user
 * @desc_n: descriptor number entered by user
 * @pf: the i40e_pf created in command write
 * @is_rx_ring: true if rx, false if tx
 **/
static void i40e_dbg_dump_desc(int cnt, int vsi_seid, int ring_id, int desc_n,
			       struct i40e_pf *pf, bool is_rx_ring)
{
	struct i40e_tx_desc *txd;
	union i40e_rx_desc *rxd;
	struct i40e_ring *ring;
	struct i40e_vsi *vsi;
	int i;

	vsi = i40e_dbg_find_vsi(pf, vsi_seid);
	if (!vsi) {
		dev_info(&pf->pdev->dev, "vsi %d not found\n", vsi_seid);
		return;
	}
	if (ring_id >= vsi->num_queue_pairs || ring_id < 0) {
		dev_info(&pf->pdev->dev, "ring %d not found\n", ring_id);
		return;
	}
	if (!vsi->tx_rings || !vsi->tx_rings[0]->desc) {
		dev_info(&pf->pdev->dev,
			 "descriptor rings have not been allocated for vsi %d\n",
			 vsi_seid);
		return;
	}

	ring = kmemdup(is_rx_ring
		       ? vsi->rx_rings[ring_id] : vsi->tx_rings[ring_id],
		       sizeof(*ring), GFP_KERNEL);
	if (!ring)
		return;

	if (cnt == 2) {
		dev_info(&pf->pdev->dev, "vsi = %02i %s ring = %02i\n",
			 vsi_seid, is_rx_ring ? "rx" : "tx", ring_id);
		for (i = 0; i < ring->count; i++) {
			if (!is_rx_ring) {
				txd = I40E_TX_DESC(ring, i);
				dev_info(&pf->pdev->dev,
					 "   d[%03x] = 0x%016llx 0x%016llx\n",
					 i, txd->buffer_addr,
					 txd->cmd_type_offset_bsz);
			} else {
				rxd = I40E_RX_DESC(ring, i);
				dev_info(&pf->pdev->dev,
					 "   d[%03x] = 0x%016llx 0x%016llx 0x%016llx 0x%016llx\n",
					 i, rxd->read.pkt_addr,
					 rxd->read.hdr_addr,
					 rxd->read.rsvd1, rxd->read.rsvd2);
			}
		}
	} else if (cnt == 3) {
		if (desc_n >= ring->count || desc_n < 0) {
			dev_info(&pf->pdev->dev,
				 "descriptor %d not found\n", desc_n);
			goto out;
		}
		if (!is_rx_ring) {
			txd = I40E_TX_DESC(ring, desc_n);
			dev_info(&pf->pdev->dev,
				 "vsi = %02i tx ring = %02i d[%03x] = 0x%016llx 0x%016llx\n",
				 vsi_seid, ring_id, desc_n,
				 txd->buffer_addr, txd->cmd_type_offset_bsz);
		} else {
			rxd = I40E_RX_DESC(ring, desc_n);
			dev_info(&pf->pdev->dev,
				 "vsi = %02i rx ring = %02i d[%03x] = 0x%016llx 0x%016llx 0x%016llx 0x%016llx\n",
				 vsi_seid, ring_id, desc_n,
				 rxd->read.pkt_addr, rxd->read.hdr_addr,
				 rxd->read.rsvd1, rxd->read.rsvd2);
		}
	} else {
		dev_info(&pf->pdev->dev, "dump desc rx/tx <vsi_seid> <ring_id> [<desc_n>]\n");
	}

out:
	kfree(ring);
}

/**
 * i40e_dbg_dump_vsi_no_seid - handles dump vsi write into command datum
 * @pf: the i40e_pf created in command write
 **/
static void i40e_dbg_dump_vsi_no_seid(struct i40e_pf *pf)
{
	int i;

	for (i = 0; i < pf->num_alloc_vsi; i++)
		if (pf->vsi[i])
			dev_info(&pf->pdev->dev, "dump vsi[%d]: %d\n",
				 i, pf->vsi[i]->seid);
}

/**
 * i40e_dbg_dump_stats - handles dump stats write into command datum
 * @pf: the i40e_pf created in command write
 * @estats: the eth stats structure to be dumped
 **/
static void i40e_dbg_dump_eth_stats(struct i40e_pf *pf,
				    struct i40e_eth_stats *estats)
{
	dev_info(&pf->pdev->dev, "  ethstats:\n");
	dev_info(&pf->pdev->dev,
		 "    rx_bytes = \t%lld \trx_unicast = \t\t%lld \trx_multicast = \t%lld\n",
		estats->rx_bytes, estats->rx_unicast, estats->rx_multicast);
	dev_info(&pf->pdev->dev,
		 "    rx_broadcast = \t%lld \trx_discards = \t\t%lld\n",
		 estats->rx_broadcast, estats->rx_discards);
	dev_info(&pf->pdev->dev,
		 "    rx_unknown_protocol = \t%lld \ttx_bytes = \t%lld\n",
		 estats->rx_unknown_protocol, estats->tx_bytes);
	dev_info(&pf->pdev->dev,
		 "    tx_unicast = \t%lld \ttx_multicast = \t\t%lld \ttx_broadcast = \t%lld\n",
		 estats->tx_unicast, estats->tx_multicast, estats->tx_broadcast);
	dev_info(&pf->pdev->dev,
		 "    tx_discards = \t%lld \ttx_errors = \t\t%lld\n",
		 estats->tx_discards, estats->tx_errors);
}

/**
 * i40e_dbg_dump_veb_seid - handles dump stats of a single given veb
 * @pf: the i40e_pf created in command write
 * @seid: the seid the user put in
 **/
static void i40e_dbg_dump_veb_seid(struct i40e_pf *pf, int seid)
{
	struct i40e_veb *veb;

	veb = i40e_dbg_find_veb(pf, seid);
	if (!veb) {
		dev_info(&pf->pdev->dev, "can't find veb %d\n", seid);
		return;
	}
	dev_info(&pf->pdev->dev,
		 "veb idx=%d,%d stats_ic=%d  seid=%d uplink=%d mode=%s\n",
		 veb->idx, veb->veb_idx, veb->stats_idx, veb->seid,
		 veb->uplink_seid,
		 veb->bridge_mode == BRIDGE_MODE_VEPA ? "VEPA" : "VEB");
	i40e_dbg_dump_eth_stats(pf, &veb->stats);
}

/**
 * i40e_dbg_dump_veb_all - dumps all known veb's stats
 * @pf: the i40e_pf created in command write
 **/
static void i40e_dbg_dump_veb_all(struct i40e_pf *pf)
{
	struct i40e_veb *veb;
	int i;

	for (i = 0; i < I40E_MAX_VEB; i++) {
		veb = pf->veb[i];
		if (veb)
			i40e_dbg_dump_veb_seid(pf, veb->seid);
	}
}

/**
 * i40e_dbg_dump_vf - dump VF info
 * @pf: the i40e_pf created in command write
 * @vf_id: the vf_id from the user
 **/
static void i40e_dbg_dump_vf(struct i40e_pf *pf, int vf_id)
{
	struct i40e_vf *vf;
	struct i40e_vsi *vsi;

	if (!pf->num_alloc_vfs) {
		dev_info(&pf->pdev->dev, "no VFs allocated\n");
	} else if ((vf_id >= 0) && (vf_id < pf->num_alloc_vfs)) {
		vf = &pf->vf[vf_id];
		vsi = pf->vsi[vf->lan_vsi_idx];
		dev_info(&pf->pdev->dev, "vf %2d: VSI id=%d, seid=%d, qps=%d\n",
			 vf_id, vf->lan_vsi_id, vsi->seid, vf->num_queue_pairs);
		dev_info(&pf->pdev->dev, "       num MDD=%lld, invalid msg=%lld, valid msg=%lld\n",
			 vf->num_mdd_events,
			 vf->num_invalid_msgs,
			 vf->num_valid_msgs);
	} else {
		dev_info(&pf->pdev->dev, "invalid VF id %d\n", vf_id);
	}
}

/**
 * i40e_dbg_dump_vf_all - dump VF info for all VFs
 * @pf: the i40e_pf created in command write
 **/
static void i40e_dbg_dump_vf_all(struct i40e_pf *pf)
{
	int i;

	if (!pf->num_alloc_vfs)
		dev_info(&pf->pdev->dev, "no VFs enabled!\n");
	else
		for (i = 0; i < pf->num_alloc_vfs; i++)
			i40e_dbg_dump_vf(pf, i);
}

#define I40E_MAX_DEBUG_OUT_BUFFER (4096*4)
/**
 * i40e_dbg_command_write - write into command datum
 * @filp: the opened file
 * @buffer: where to find the user's data
 * @count: the length of the user's data
 * @ppos: file position offset
 **/
static ssize_t i40e_dbg_command_write(struct file *filp,
				      const char __user *buffer,
				      size_t count, loff_t *ppos)
{
	struct i40e_pf *pf = filp->private_data;
	char *cmd_buf, *cmd_buf_tmp;
	int bytes_not_copied;
	struct i40e_vsi *vsi;
	int vsi_seid;
	int veb_seid;
	int vf_id;
	int cnt;

	/* don't allow partial writes */
	if (*ppos != 0)
		return 0;

	cmd_buf = kzalloc(count + 1, GFP_KERNEL);
	if (!cmd_buf)
		return count;
	bytes_not_copied = copy_from_user(cmd_buf, buffer, count);
	if (bytes_not_copied) {
		kfree(cmd_buf);
		return -EFAULT;
	}
	cmd_buf[count] = '\0';

	cmd_buf_tmp = strchr(cmd_buf, '\n');
	if (cmd_buf_tmp) {
		*cmd_buf_tmp = '\0';
		count = cmd_buf_tmp - cmd_buf + 1;
	}

	if (strncmp(cmd_buf, "add vsi", 7) == 0) {
		vsi_seid = -1;
		cnt = sscanf(&cmd_buf[7], "%i", &vsi_seid);
		if (cnt == 0) {
			/* default to PF VSI */
			vsi_seid = pf->vsi[pf->lan_vsi]->seid;
		} else if (vsi_seid < 0) {
			dev_info(&pf->pdev->dev, "add VSI %d: bad vsi seid\n",
				 vsi_seid);
			goto command_write_done;
		}

		/* By default we are in VEPA mode, if this is the first VF/VMDq
		 * VSI to be added switch to VEB mode.
		 */
		if (!(pf->flags & I40E_FLAG_VEB_MODE_ENABLED)) {
			pf->flags |= I40E_FLAG_VEB_MODE_ENABLED;
			i40e_do_reset_safe(pf, I40E_PF_RESET_FLAG);
		}

		vsi = i40e_vsi_setup(pf, I40E_VSI_VMDQ2, vsi_seid, 0);
		if (vsi)
			dev_info(&pf->pdev->dev, "added VSI %d to relay %d\n",
				 vsi->seid, vsi->uplink_seid);
		else
			dev_info(&pf->pdev->dev, "'%s' failed\n", cmd_buf);

	} else if (strncmp(cmd_buf, "del vsi", 7) == 0) {
		cnt = sscanf(&cmd_buf[7], "%i", &vsi_seid);
		if (cnt != 1) {
			dev_info(&pf->pdev->dev,
				 "del vsi: bad command string, cnt=%d\n",
				 cnt);
			goto command_write_done;
		}
		vsi = i40e_dbg_find_vsi(pf, vsi_seid);
		if (!vsi) {
			dev_info(&pf->pdev->dev, "del VSI %d: seid not found\n",
				 vsi_seid);
			goto command_write_done;
		}

		dev_info(&pf->pdev->dev, "deleting VSI %d\n", vsi_seid);
		i40e_vsi_release(vsi);

	} else if (strncmp(cmd_buf, "add relay", 9) == 0) {
		struct i40e_veb *veb;
		int uplink_seid, i;

		cnt = sscanf(&cmd_buf[9], "%i %i", &uplink_seid, &vsi_seid);
		if (cnt != 2) {
			dev_info(&pf->pdev->dev,
				 "add relay: bad command string, cnt=%d\n",
				 cnt);
			goto command_write_done;
		} else if (uplink_seid < 0) {
			dev_info(&pf->pdev->dev,
				 "add relay %d: bad uplink seid\n",
				 uplink_seid);
			goto command_write_done;
		}

		vsi = i40e_dbg_find_vsi(pf, vsi_seid);
		if (!vsi) {
			dev_info(&pf->pdev->dev,
				 "add relay: VSI %d not found\n", vsi_seid);
			goto command_write_done;
		}

		for (i = 0; i < I40E_MAX_VEB; i++)
			if (pf->veb[i] && pf->veb[i]->seid == uplink_seid)
				break;
		if (i >= I40E_MAX_VEB && uplink_seid != 0 &&
		    uplink_seid != pf->mac_seid) {
			dev_info(&pf->pdev->dev,
				 "add relay: relay uplink %d not found\n",
				 uplink_seid);
			goto command_write_done;
		}

		veb = i40e_veb_setup(pf, 0, uplink_seid, vsi_seid,
				     vsi->tc_config.enabled_tc);
		if (veb)
			dev_info(&pf->pdev->dev, "added relay %d\n", veb->seid);
		else
			dev_info(&pf->pdev->dev, "add relay failed\n");

	} else if (strncmp(cmd_buf, "del relay", 9) == 0) {
		int i;
		cnt = sscanf(&cmd_buf[9], "%i", &veb_seid);
		if (cnt != 1) {
			dev_info(&pf->pdev->dev,
				 "del relay: bad command string, cnt=%d\n",
				 cnt);
			goto command_write_done;
		} else if (veb_seid < 0) {
			dev_info(&pf->pdev->dev,
				 "del relay %d: bad relay seid\n", veb_seid);
			goto command_write_done;
		}

		/* find the veb */
		for (i = 0; i < I40E_MAX_VEB; i++)
			if (pf->veb[i] && pf->veb[i]->seid == veb_seid)
				break;
		if (i >= I40E_MAX_VEB) {
			dev_info(&pf->pdev->dev,
				 "del relay: relay %d not found\n", veb_seid);
			goto command_write_done;
		}

		dev_info(&pf->pdev->dev, "deleting relay %d\n", veb_seid);
		i40e_veb_release(pf->veb[i]);
	} else if (strncmp(cmd_buf, "add pvid", 8) == 0) {
		i40e_status ret;
		u16 vid;
		unsigned int v;

		cnt = sscanf(&cmd_buf[8], "%i %u", &vsi_seid, &v);
		if (cnt != 2) {
			dev_info(&pf->pdev->dev,
				 "add pvid: bad command string, cnt=%d\n", cnt);
			goto command_write_done;
		}

		vsi = i40e_dbg_find_vsi(pf, vsi_seid);
		if (!vsi) {
			dev_info(&pf->pdev->dev, "add pvid: VSI %d not found\n",
				 vsi_seid);
			goto command_write_done;
		}

		vid = v;
		ret = i40e_vsi_add_pvid(vsi, vid);
		if (!ret)
			dev_info(&pf->pdev->dev,
				 "add pvid: %d added to VSI %d\n",
				 vid, vsi_seid);
		else
			dev_info(&pf->pdev->dev,
				 "add pvid: %d to VSI %d failed, ret=%d\n",
				 vid, vsi_seid, ret);

	} else if (strncmp(cmd_buf, "del pvid", 8) == 0) {

		cnt = sscanf(&cmd_buf[8], "%i", &vsi_seid);
		if (cnt != 1) {
			dev_info(&pf->pdev->dev,
				 "del pvid: bad command string, cnt=%d\n",
				 cnt);
			goto command_write_done;
		}

		vsi = i40e_dbg_find_vsi(pf, vsi_seid);
		if (!vsi) {
			dev_info(&pf->pdev->dev,
				 "del pvid: VSI %d not found\n", vsi_seid);
			goto command_write_done;
		}

		i40e_vsi_remove_pvid(vsi);
		dev_info(&pf->pdev->dev,
			 "del pvid: removed from VSI %d\n", vsi_seid);

	} else if (strncmp(cmd_buf, "dump", 4) == 0) {
		if (strncmp(&cmd_buf[5], "switch", 6) == 0) {
			i40e_fetch_switch_configuration(pf, true);
		} else if (strncmp(&cmd_buf[5], "vsi", 3) == 0) {
			cnt = sscanf(&cmd_buf[8], "%i", &vsi_seid);
			if (cnt > 0)
				i40e_dbg_dump_vsi_seid(pf, vsi_seid);
			else
				i40e_dbg_dump_vsi_no_seid(pf);
		} else if (strncmp(&cmd_buf[5], "veb", 3) == 0) {
			cnt = sscanf(&cmd_buf[8], "%i", &vsi_seid);
			if (cnt > 0)
				i40e_dbg_dump_veb_seid(pf, vsi_seid);
			else
				i40e_dbg_dump_veb_all(pf);
		} else if (strncmp(&cmd_buf[5], "vf", 2) == 0) {
			cnt = sscanf(&cmd_buf[7], "%i", &vf_id);
			if (cnt > 0)
				i40e_dbg_dump_vf(pf, vf_id);
			else
				i40e_dbg_dump_vf_all(pf);
		} else if (strncmp(&cmd_buf[5], "desc", 4) == 0) {
			int ring_id, desc_n;
			if (strncmp(&cmd_buf[10], "rx", 2) == 0) {
				cnt = sscanf(&cmd_buf[12], "%i %i %i",
					     &vsi_seid, &ring_id, &desc_n);
				i40e_dbg_dump_desc(cnt, vsi_seid, ring_id,
						   desc_n, pf, true);
			} else if (strncmp(&cmd_buf[10], "tx", 2)
					== 0) {
				cnt = sscanf(&cmd_buf[12], "%i %i %i",
					     &vsi_seid, &ring_id, &desc_n);
				i40e_dbg_dump_desc(cnt, vsi_seid, ring_id,
						   desc_n, pf, false);
			} else if (strncmp(&cmd_buf[10], "aq", 2) == 0) {
				i40e_dbg_dump_aq_desc(pf);
			} else {
				dev_info(&pf->pdev->dev,
					 "dump desc tx <vsi_seid> <ring_id> [<desc_n>]\n");
				dev_info(&pf->pdev->dev,
					 "dump desc rx <vsi_seid> <ring_id> [<desc_n>]\n");
				dev_info(&pf->pdev->dev, "dump desc aq\n");
			}
		} else if (strncmp(&cmd_buf[5], "reset stats", 11) == 0) {
			dev_info(&pf->pdev->dev,
				 "core reset count: %d\n", pf->corer_count);
			dev_info(&pf->pdev->dev,
				 "global reset count: %d\n", pf->globr_count);
			dev_info(&pf->pdev->dev,
				 "emp reset count: %d\n", pf->empr_count);
			dev_info(&pf->pdev->dev,
				 "pf reset count: %d\n", pf->pfr_count);
			dev_info(&pf->pdev->dev,
				 "pf tx sluggish count: %d\n",
				 pf->tx_sluggish_count);
		} else if (strncmp(&cmd_buf[5], "port", 4) == 0) {
			struct i40e_aqc_query_port_ets_config_resp *bw_data;
			struct i40e_dcbx_config *cfg =
						&pf->hw.local_dcbx_config;
			struct i40e_dcbx_config *r_cfg =
						&pf->hw.remote_dcbx_config;
			int i, ret;
			u16 switch_id;

			bw_data = kzalloc(sizeof(
				    struct i40e_aqc_query_port_ets_config_resp),
					  GFP_KERNEL);
			if (!bw_data) {
				ret = -ENOMEM;
				goto command_write_done;
			}

			vsi = pf->vsi[pf->lan_vsi];
			switch_id =
				le16_to_cpu(vsi->info.switch_id) &
					    I40E_AQ_VSI_SW_ID_MASK;

			ret = i40e_aq_query_port_ets_config(&pf->hw,
							    switch_id,
							    bw_data, NULL);
			if (ret) {
				dev_info(&pf->pdev->dev,
					 "Query Port ETS Config AQ command failed =0x%x\n",
					 pf->hw.aq.asq_last_status);
				kfree(bw_data);
				bw_data = NULL;
				goto command_write_done;
			}
			dev_info(&pf->pdev->dev,
				 "port bw: tc_valid=0x%x tc_strict_prio=0x%x, tc_bw_max=0x%04x,0x%04x\n",
				 bw_data->tc_valid_bits,
				 bw_data->tc_strict_priority_bits,
				 le16_to_cpu(bw_data->tc_bw_max[0]),
				 le16_to_cpu(bw_data->tc_bw_max[1]));
			for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
				dev_info(&pf->pdev->dev, "port bw: tc_bw_share=%d tc_bw_limit=%d\n",
					 bw_data->tc_bw_share_credits[i],
					 le16_to_cpu(bw_data->tc_bw_limits[i]));
			}

			kfree(bw_data);
			bw_data = NULL;

			dev_info(&pf->pdev->dev,
				 "port dcbx_mode=%d\n", cfg->dcbx_mode);
			dev_info(&pf->pdev->dev,
				 "port ets_cfg: willing=%d cbs=%d, maxtcs=%d\n",
				 cfg->etscfg.willing, cfg->etscfg.cbs,
				 cfg->etscfg.maxtcs);
			for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
				dev_info(&pf->pdev->dev, "port ets_cfg: %d prio_tc=%d tcbw=%d tctsa=%d\n",
					 i, cfg->etscfg.prioritytable[i],
					 cfg->etscfg.tcbwtable[i],
					 cfg->etscfg.tsatable[i]);
			}
			for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
				dev_info(&pf->pdev->dev, "port ets_rec: %d prio_tc=%d tcbw=%d tctsa=%d\n",
					 i, cfg->etsrec.prioritytable[i],
					 cfg->etsrec.tcbwtable[i],
					 cfg->etsrec.tsatable[i]);
			}
			dev_info(&pf->pdev->dev,
				 "port pfc_cfg: willing=%d mbc=%d, pfccap=%d pfcenable=0x%x\n",
				 cfg->pfc.willing, cfg->pfc.mbc,
				 cfg->pfc.pfccap, cfg->pfc.pfcenable);
			dev_info(&pf->pdev->dev,
				 "port app_table: num_apps=%d\n", cfg->numapps);
			for (i = 0; i < cfg->numapps; i++) {
				dev_info(&pf->pdev->dev, "port app_table: %d prio=%d selector=%d protocol=0x%x\n",
					 i, cfg->app[i].priority,
					 cfg->app[i].selector,
					 cfg->app[i].protocolid);
			}
			/* Peer TLV DCBX data */
			dev_info(&pf->pdev->dev,
				 "remote port ets_cfg: willing=%d cbs=%d, maxtcs=%d\n",
				 r_cfg->etscfg.willing,
				 r_cfg->etscfg.cbs, r_cfg->etscfg.maxtcs);
			for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
				dev_info(&pf->pdev->dev, "remote port ets_cfg: %d prio_tc=%d tcbw=%d tctsa=%d\n",
					 i, r_cfg->etscfg.prioritytable[i],
					 r_cfg->etscfg.tcbwtable[i],
					 r_cfg->etscfg.tsatable[i]);
			}
			for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
				dev_info(&pf->pdev->dev, "remote port ets_rec: %d prio_tc=%d tcbw=%d tctsa=%d\n",
					 i, r_cfg->etsrec.prioritytable[i],
					 r_cfg->etsrec.tcbwtable[i],
					 r_cfg->etsrec.tsatable[i]);
			}
			dev_info(&pf->pdev->dev,
				 "remote port pfc_cfg: willing=%d mbc=%d, pfccap=%d pfcenable=0x%x\n",
				 r_cfg->pfc.willing,
				 r_cfg->pfc.mbc,
				 r_cfg->pfc.pfccap,
				 r_cfg->pfc.pfcenable);
			dev_info(&pf->pdev->dev,
				 "remote port app_table: num_apps=%d\n",
				 r_cfg->numapps);
			for (i = 0; i < r_cfg->numapps; i++) {
				dev_info(&pf->pdev->dev, "remote port app_table: %d prio=%d selector=%d protocol=0x%x\n",
					 i, r_cfg->app[i].priority,
					 r_cfg->app[i].selector,
					 r_cfg->app[i].protocolid);
			}
		} else if (strncmp(&cmd_buf[5], "debug fwdata", 12) == 0) {
			int cluster_id, table_id;
			int index, ret;
			u16 buff_len = 4096;
			u32 next_index;
			u8 next_table;
			u8 *buff;
			u16 rlen;

			cnt = sscanf(&cmd_buf[18], "%i %i %i",
				     &cluster_id, &table_id, &index);
			if (cnt != 3) {
				dev_info(&pf->pdev->dev,
					 "dump debug fwdata <cluster_id> <table_id> <index>\n");
				goto command_write_done;
			}

			dev_info(&pf->pdev->dev,
				 "AQ debug dump fwdata params %x %x %x %x\n",
				 cluster_id, table_id, index, buff_len);
			buff = kzalloc(buff_len, GFP_KERNEL);
			if (!buff)
				goto command_write_done;

			ret = i40e_aq_debug_dump(&pf->hw, cluster_id, table_id,
						 index, buff_len, buff, &rlen,
						 &next_table, &next_index,
						 NULL);
			if (ret) {
				dev_info(&pf->pdev->dev,
					 "debug dump fwdata AQ Failed %d 0x%x\n",
					 ret, pf->hw.aq.asq_last_status);
				kfree(buff);
				buff = NULL;
				goto command_write_done;
			}
			dev_info(&pf->pdev->dev,
				 "AQ debug dump fwdata rlen=0x%x next_table=0x%x next_index=0x%x\n",
				 rlen, next_table, next_index);
			print_hex_dump(KERN_INFO, "AQ buffer WB: ",
				       DUMP_PREFIX_OFFSET, 16, 1,
				       buff, rlen, true);
			kfree(buff);
			buff = NULL;
		} else {
			dev_info(&pf->pdev->dev,
				 "dump desc tx <vsi_seid> <ring_id> [<desc_n>], dump desc rx <vsi_seid> <ring_id> [<desc_n>],\n");
			dev_info(&pf->pdev->dev, "dump switch\n");
			dev_info(&pf->pdev->dev, "dump vsi [seid]\n");
			dev_info(&pf->pdev->dev, "dump reset stats\n");
			dev_info(&pf->pdev->dev, "dump port\n");
			dev_info(&pf->pdev->dev, "dump vf [vf_id]\n");
			dev_info(&pf->pdev->dev,
				 "dump debug fwdata <cluster_id> <table_id> <index>\n");
		}
	} else if (strncmp(cmd_buf, "pfr", 3) == 0) {
		dev_info(&pf->pdev->dev, "debugfs: forcing PFR\n");
		i40e_do_reset_safe(pf, BIT(__I40E_PF_RESET_REQUESTED));

	} else if (strncmp(cmd_buf, "corer", 5) == 0) {
		dev_info(&pf->pdev->dev, "debugfs: forcing CoreR\n");
		i40e_do_reset_safe(pf, BIT(__I40E_CORE_RESET_REQUESTED));

	} else if (strncmp(cmd_buf, "globr", 5) == 0) {
		dev_info(&pf->pdev->dev, "debugfs: forcing GlobR\n");
		i40e_do_reset_safe(pf, BIT(__I40E_GLOBAL_RESET_REQUESTED));

	} else if (strncmp(cmd_buf, "empr", 4) == 0) {
		dev_info(&pf->pdev->dev, "debugfs: forcing EMPR\n");
		i40e_do_reset_safe(pf, BIT(__I40E_EMP_RESET_REQUESTED));

	} else if (strncmp(cmd_buf, "read", 4) == 0) {
		u32 address;
		u32 value;

		cnt = sscanf(&cmd_buf[4], "%i", &address);
		if (cnt != 1) {
			dev_info(&pf->pdev->dev, "read <reg>\n");
			goto command_write_done;
		}

		/* check the range on address */
		if (address > (pf->ioremap_len - sizeof(u32))) {
			dev_info(&pf->pdev->dev, "read reg address 0x%08x too large, max=0x%08lx\n",
				 address, (unsigned long int)(pf->ioremap_len - sizeof(u32)));
			goto command_write_done;
		}

		value = rd32(&pf->hw, address);
		dev_info(&pf->pdev->dev, "read: 0x%08x = 0x%08x\n",
			 address, value);

	} else if (strncmp(cmd_buf, "write", 5) == 0) {
		u32 address, value;

		cnt = sscanf(&cmd_buf[5], "%i %i", &address, &value);
		if (cnt != 2) {
			dev_info(&pf->pdev->dev, "write <reg> <value>\n");
			goto command_write_done;
		}

		/* check the range on address */
		if (address > (pf->ioremap_len - sizeof(u32))) {
			dev_info(&pf->pdev->dev, "write reg address 0x%08x too large, max=0x%08lx\n",
				 address, (unsigned long int)(pf->ioremap_len - sizeof(u32)));
			goto command_write_done;
		}
		wr32(&pf->hw, address, value);
		value = rd32(&pf->hw, address);
		dev_info(&pf->pdev->dev, "write: 0x%08x = 0x%08x\n",
			 address, value);
	} else if (strncmp(cmd_buf, "clear_stats", 11) == 0) {
		if (strncmp(&cmd_buf[12], "vsi", 3) == 0) {
			cnt = sscanf(&cmd_buf[15], "%i", &vsi_seid);
			if (cnt == 0) {
				int i;

				for (i = 0; i < pf->num_alloc_vsi; i++)
					i40e_vsi_reset_stats(pf->vsi[i]);
				dev_info(&pf->pdev->dev, "vsi clear stats called for all vsi's\n");
			} else if (cnt == 1) {
				vsi = i40e_dbg_find_vsi(pf, vsi_seid);
				if (!vsi) {
					dev_info(&pf->pdev->dev,
						 "clear_stats vsi: bad vsi %d\n",
						 vsi_seid);
					goto command_write_done;
				}
				i40e_vsi_reset_stats(vsi);
				dev_info(&pf->pdev->dev,
					 "vsi clear stats called for vsi %d\n",
					 vsi_seid);
			} else {
				dev_info(&pf->pdev->dev, "clear_stats vsi [seid]\n");
			}
		} else if (strncmp(&cmd_buf[12], "port", 4) == 0) {
			if (pf->hw.partition_id == 1) {
				i40e_pf_reset_stats(pf);
				dev_info(&pf->pdev->dev, "port stats cleared\n");
			} else {
				dev_info(&pf->pdev->dev, "clear port stats not allowed on this port partition\n");
			}
		} else {
			dev_info(&pf->pdev->dev, "clear_stats vsi [seid] or clear_stats port\n");
		}
	} else if (strncmp(cmd_buf, "send aq_cmd", 11) == 0) {
		struct i40e_aq_desc *desc;
		i40e_status ret;

		desc = kzalloc(sizeof(struct i40e_aq_desc), GFP_KERNEL);
		if (!desc)
			goto command_write_done;
		cnt = sscanf(&cmd_buf[11],
			     "%hi %hi %hi %hi %i %i %i %i %i %i",
			     &desc->flags,
			     &desc->opcode, &desc->datalen, &desc->retval,
			     &desc->cookie_high, &desc->cookie_low,
			     &desc->params.internal.param0,
			     &desc->params.internal.param1,
			     &desc->params.internal.param2,
			     &desc->params.internal.param3);
		if (cnt != 10) {
			dev_info(&pf->pdev->dev,
				 "send aq_cmd: bad command string, cnt=%d\n",
				 cnt);
			kfree(desc);
			desc = NULL;
			goto command_write_done;
		}
		ret = i40e_asq_send_command(&pf->hw, desc, NULL, 0, NULL);
		if (!ret) {
			dev_info(&pf->pdev->dev, "AQ command sent Status : Success\n");
		} else if (ret == I40E_ERR_ADMIN_QUEUE_ERROR) {
			dev_info(&pf->pdev->dev,
				 "AQ command send failed Opcode %x AQ Error: %d\n",
				 desc->opcode, pf->hw.aq.asq_last_status);
		} else {
			dev_info(&pf->pdev->dev,
				 "AQ command send failed Opcode %x Status: %d\n",
				 desc->opcode, ret);
		}
		dev_info(&pf->pdev->dev,
			 "AQ desc WB 0x%04x 0x%04x 0x%04x 0x%04x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x\n",
			 desc->flags, desc->opcode, desc->datalen, desc->retval,
			 desc->cookie_high, desc->cookie_low,
			 desc->params.internal.param0,
			 desc->params.internal.param1,
			 desc->params.internal.param2,
			 desc->params.internal.param3);
		kfree(desc);
		desc = NULL;
	} else if (strncmp(cmd_buf, "send indirect aq_cmd", 20) == 0) {
		struct i40e_aq_desc *desc;
		i40e_status ret;
		u16 buffer_len;
		u8 *buff;

		desc = kzalloc(sizeof(struct i40e_aq_desc), GFP_KERNEL);
		if (!desc)
			goto command_write_done;
		cnt = sscanf(&cmd_buf[20],
			     "%hi %hi %hi %hi %i %i %i %i %i %i %hi",
			     &desc->flags,
			     &desc->opcode, &desc->datalen, &desc->retval,
			     &desc->cookie_high, &desc->cookie_low,
			     &desc->params.internal.param0,
			     &desc->params.internal.param1,
			     &desc->params.internal.param2,
			     &desc->params.internal.param3,
			     &buffer_len);
		if (cnt != 11) {
			dev_info(&pf->pdev->dev,
				 "send indirect aq_cmd: bad command string, cnt=%d\n",
				 cnt);
			kfree(desc);
			desc = NULL;
			goto command_write_done;
		}
		/* Just stub a buffer big enough in case user messed up */
		if (buffer_len == 0)
			buffer_len = 1280;

		buff = kzalloc(buffer_len, GFP_KERNEL);
		if (!buff) {
			kfree(desc);
			desc = NULL;
			goto command_write_done;
		}
		desc->flags |= cpu_to_le16((u16)I40E_AQ_FLAG_BUF);
		ret = i40e_asq_send_command(&pf->hw, desc, buff,
					    buffer_len, NULL);
		if (!ret) {
			dev_info(&pf->pdev->dev, "AQ command sent Status : Success\n");
		} else if (ret == I40E_ERR_ADMIN_QUEUE_ERROR) {
			dev_info(&pf->pdev->dev,
				 "AQ command send failed Opcode %x AQ Error: %d\n",
				 desc->opcode, pf->hw.aq.asq_last_status);
		} else {
			dev_info(&pf->pdev->dev,
				 "AQ command send failed Opcode %x Status: %d\n",
				 desc->opcode, ret);
		}
		dev_info(&pf->pdev->dev,
			 "AQ desc WB 0x%04x 0x%04x 0x%04x 0x%04x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x\n",
			 desc->flags, desc->opcode, desc->datalen, desc->retval,
			 desc->cookie_high, desc->cookie_low,
			 desc->params.internal.param0,
			 desc->params.internal.param1,
			 desc->params.internal.param2,
			 desc->params.internal.param3);
		print_hex_dump(KERN_INFO, "AQ buffer WB: ",
			       DUMP_PREFIX_OFFSET, 16, 1,
			       buff, buffer_len, true);
		kfree(buff);
		buff = NULL;
		kfree(desc);
		desc = NULL;
	} else if (strncmp(cmd_buf, "fd current cnt", 14) == 0) {
		dev_info(&pf->pdev->dev, "FD current total filter count for this interface: %d\n",
			 i40e_get_current_fd_count(pf));
	} else if (strncmp(cmd_buf, "lldp", 4) == 0) {
		if (strncmp(&cmd_buf[5], "stop", 4) == 0) {
			int ret;

			ret = i40e_aq_stop_lldp(&pf->hw, false, NULL);
			if (ret) {
				dev_info(&pf->pdev->dev,
					 "Stop LLDP AQ command failed =0x%x\n",
					 pf->hw.aq.asq_last_status);
				goto command_write_done;
			}
			ret = i40e_aq_add_rem_control_packet_filter(&pf->hw,
						pf->hw.mac.addr,
						I40E_ETH_P_LLDP, 0,
						pf->vsi[pf->lan_vsi]->seid,
						0, true, NULL, NULL);
			if (ret) {
				dev_info(&pf->pdev->dev,
					"%s: Add Control Packet Filter AQ command failed =0x%x\n",
					__func__, pf->hw.aq.asq_last_status);
				goto command_write_done;
			}
#ifdef CONFIG_I40E_DCB
			pf->dcbx_cap = DCB_CAP_DCBX_HOST |
				       DCB_CAP_DCBX_VER_IEEE;
#endif /* CONFIG_I40E_DCB */
		} else if (strncmp(&cmd_buf[5], "start", 5) == 0) {
			int ret;

			ret = i40e_aq_add_rem_control_packet_filter(&pf->hw,
						pf->hw.mac.addr,
						I40E_ETH_P_LLDP, 0,
						pf->vsi[pf->lan_vsi]->seid,
						0, false, NULL, NULL);
			if (ret) {
				dev_info(&pf->pdev->dev,
					"%s: Remove Control Packet Filter AQ command failed =0x%x\n",
					__func__, pf->hw.aq.asq_last_status);
				/* Continue and start FW LLDP anyways */
			}

			ret = i40e_aq_start_lldp(&pf->hw, NULL);
			if (ret) {
				dev_info(&pf->pdev->dev,
					 "Start LLDP AQ command failed =0x%x\n",
					 pf->hw.aq.asq_last_status);
				goto command_write_done;
			}
#ifdef CONFIG_I40E_DCB
			pf->dcbx_cap = DCB_CAP_DCBX_LLD_MANAGED |
				       DCB_CAP_DCBX_VER_IEEE;
#endif /* CONFIG_I40E_DCB */
		} else if (strncmp(&cmd_buf[5],
			   "get local", 9) == 0) {
			u16 llen, rlen;
			int ret;
			u8 *buff;

			buff = kzalloc(I40E_LLDPDU_SIZE, GFP_KERNEL);
			if (!buff)
				goto command_write_done;

			ret = i40e_aq_get_lldp_mib(&pf->hw, 0,
						   I40E_AQ_LLDP_MIB_LOCAL,
						   buff, I40E_LLDPDU_SIZE,
						   &llen, &rlen, NULL);
			if (ret) {
				dev_info(&pf->pdev->dev,
					 "Get LLDP MIB (local) AQ command failed =0x%x\n",
					 pf->hw.aq.asq_last_status);
				kfree(buff);
				buff = NULL;
				goto command_write_done;
			}
			dev_info(&pf->pdev->dev, "LLDP MIB (local)\n");
			print_hex_dump(KERN_INFO, "LLDP MIB (local): ",
				       DUMP_PREFIX_OFFSET, 16, 1,
				       buff, I40E_LLDPDU_SIZE, true);
			kfree(buff);
			buff = NULL;
		} else if (strncmp(&cmd_buf[5], "get remote", 10) == 0) {
			u16 llen, rlen;
			int ret;
			u8 *buff;

			buff = kzalloc(I40E_LLDPDU_SIZE, GFP_KERNEL);
			if (!buff)
				goto command_write_done;

			ret = i40e_aq_get_lldp_mib(&pf->hw,
					I40E_AQ_LLDP_BRIDGE_TYPE_NEAREST_BRIDGE,
					I40E_AQ_LLDP_MIB_REMOTE,
					buff, I40E_LLDPDU_SIZE,
					&llen, &rlen, NULL);
			if (ret) {
				dev_info(&pf->pdev->dev,
					 "Get LLDP MIB (remote) AQ command failed =0x%x\n",
					 pf->hw.aq.asq_last_status);
				kfree(buff);
				buff = NULL;
				goto command_write_done;
			}
			dev_info(&pf->pdev->dev, "LLDP MIB (remote)\n");
			print_hex_dump(KERN_INFO, "LLDP MIB (remote): ",
				       DUMP_PREFIX_OFFSET, 16, 1,
				       buff, I40E_LLDPDU_SIZE, true);
			kfree(buff);
			buff = NULL;
		} else if (strncmp(&cmd_buf[5], "event on", 8) == 0) {
			int ret;

			ret = i40e_aq_cfg_lldp_mib_change_event(&pf->hw,
								true, NULL);
			if (ret) {
				dev_info(&pf->pdev->dev,
					 "Config LLDP MIB Change Event (on) AQ command failed =0x%x\n",
					 pf->hw.aq.asq_last_status);
				goto command_write_done;
			}
		} else if (strncmp(&cmd_buf[5], "event off", 9) == 0) {
			int ret;

			ret = i40e_aq_cfg_lldp_mib_change_event(&pf->hw,
								false, NULL);
			if (ret) {
				dev_info(&pf->pdev->dev,
					 "Config LLDP MIB Change Event (off) AQ command failed =0x%x\n",
					 pf->hw.aq.asq_last_status);
				goto command_write_done;
			}
		}
	} else if (strncmp(cmd_buf, "nvm read", 8) == 0) {
		u16 buffer_len, bytes;
		u16 module;
		u32 offset;
		u16 *buff;
		int ret;

		cnt = sscanf(&cmd_buf[8], "%hx %x %hx",
			     &module, &offset, &buffer_len);
		if (cnt == 0) {
			module = 0;
			offset = 0;
			buffer_len = 0;
		} else if (cnt == 1) {
			offset = 0;
			buffer_len = 0;
		} else if (cnt == 2) {
			buffer_len = 0;
		} else if (cnt > 3) {
			dev_info(&pf->pdev->dev,
				 "nvm read: bad command string, cnt=%d\n", cnt);
			goto command_write_done;
		}

		/* set the max length */
		buffer_len = min_t(u16, buffer_len, I40E_MAX_AQ_BUF_SIZE/2);

		bytes = 2 * buffer_len;

		/* read at least 1k bytes, no more than 4kB */
		bytes = clamp(bytes, (u16)1024, (u16)I40E_MAX_AQ_BUF_SIZE);
		buff = kzalloc(bytes, GFP_KERNEL);
		if (!buff)
			goto command_write_done;

		ret = i40e_acquire_nvm(&pf->hw, I40E_RESOURCE_READ);
		if (ret) {
			dev_info(&pf->pdev->dev,
				 "Failed Acquiring NVM resource for read err=%d status=0x%x\n",
				 ret, pf->hw.aq.asq_last_status);
			kfree(buff);
			goto command_write_done;
		}

		ret = i40e_aq_read_nvm(&pf->hw, module, (2 * offset),
				       bytes, (u8 *)buff, true, NULL);
		i40e_release_nvm(&pf->hw);
		if (ret) {
			dev_info(&pf->pdev->dev,
				 "Read NVM AQ failed err=%d status=0x%x\n",
				 ret, pf->hw.aq.asq_last_status);
		} else {
			dev_info(&pf->pdev->dev,
				 "Read NVM module=0x%x offset=0x%x words=%d\n",
				 module, offset, buffer_len);
			if (bytes)
				print_hex_dump(KERN_INFO, "NVM Dump: ",
					DUMP_PREFIX_OFFSET, 16, 2,
					buff, bytes, true);
		}
		kfree(buff);
		buff = NULL;
	} else {
		dev_info(&pf->pdev->dev, "unknown command '%s'\n", cmd_buf);
		dev_info(&pf->pdev->dev, "available commands\n");
		dev_info(&pf->pdev->dev, "  add vsi [relay_seid]\n");
		dev_info(&pf->pdev->dev, "  del vsi [vsi_seid]\n");
		dev_info(&pf->pdev->dev, "  add relay <uplink_seid> <vsi_seid>\n");
		dev_info(&pf->pdev->dev, "  del relay <relay_seid>\n");
		dev_info(&pf->pdev->dev, "  add pvid <vsi_seid> <vid>\n");
		dev_info(&pf->pdev->dev, "  del pvid <vsi_seid>\n");
		dev_info(&pf->pdev->dev, "  dump switch\n");
		dev_info(&pf->pdev->dev, "  dump vsi [seid]\n");
		dev_info(&pf->pdev->dev, "  dump desc tx <vsi_seid> <ring_id> [<desc_n>]\n");
		dev_info(&pf->pdev->dev, "  dump desc rx <vsi_seid> <ring_id> [<desc_n>]\n");
		dev_info(&pf->pdev->dev, "  dump desc aq\n");
		dev_info(&pf->pdev->dev, "  dump reset stats\n");
		dev_info(&pf->pdev->dev, "  dump debug fwdata <cluster_id> <table_id> <index>\n");
		dev_info(&pf->pdev->dev, "  read <reg>\n");
		dev_info(&pf->pdev->dev, "  write <reg> <value>\n");
		dev_info(&pf->pdev->dev, "  clear_stats vsi [seid]\n");
		dev_info(&pf->pdev->dev, "  clear_stats port\n");
		dev_info(&pf->pdev->dev, "  pfr\n");
		dev_info(&pf->pdev->dev, "  corer\n");
		dev_info(&pf->pdev->dev, "  globr\n");
		dev_info(&pf->pdev->dev, "  send aq_cmd <flags> <opcode> <datalen> <retval> <cookie_h> <cookie_l> <param0> <param1> <param2> <param3>\n");
		dev_info(&pf->pdev->dev, "  send indirect aq_cmd <flags> <opcode> <datalen> <retval> <cookie_h> <cookie_l> <param0> <param1> <param2> <param3> <buffer_len>\n");
		dev_info(&pf->pdev->dev, "  fd current cnt");
		dev_info(&pf->pdev->dev, "  lldp start\n");
		dev_info(&pf->pdev->dev, "  lldp stop\n");
		dev_info(&pf->pdev->dev, "  lldp get local\n");
		dev_info(&pf->pdev->dev, "  lldp get remote\n");
		dev_info(&pf->pdev->dev, "  lldp event on\n");
		dev_info(&pf->pdev->dev, "  lldp event off\n");
		dev_info(&pf->pdev->dev, "  nvm read [module] [word_offset] [word_count]\n");
	}

command_write_done:
	kfree(cmd_buf);
	cmd_buf = NULL;
	return count;
}

static const struct file_operations i40e_dbg_command_fops = {
	.owner = THIS_MODULE,
	.open =  simple_open,
	.read =  i40e_dbg_command_read,
	.write = i40e_dbg_command_write,
};

/**************************************************************
 * netdev_ops
 * The netdev_ops entry in debugfs is for giving the driver commands
 * to be executed from the netdev operations.
 **************************************************************/
static char i40e_dbg_netdev_ops_buf[256] = "";

/**
 * i40e_dbg_netdev_ops - read for netdev_ops datum
 * @filp: the opened file
 * @buffer: where to write the data for the user to read
 * @count: the size of the user's buffer
 * @ppos: file position offset
 **/
static ssize_t i40e_dbg_netdev_ops_read(struct file *filp, char __user *buffer,
					size_t count, loff_t *ppos)
{
	struct i40e_pf *pf = filp->private_data;
	int bytes_not_copied;
	int buf_size = 256;
	char *buf;
	int len;

	/* don't allow partal reads */
	if (*ppos != 0)
		return 0;
	if (count < buf_size)
		return -ENOSPC;

	buf = kzalloc(buf_size, GFP_KERNEL);
	if (!buf)
		return -ENOSPC;

	len = snprintf(buf, buf_size, "%s: %s\n",
		       pf->vsi[pf->lan_vsi]->netdev->name,
		       i40e_dbg_netdev_ops_buf);

	bytes_not_copied = copy_to_user(buffer, buf, len);
	kfree(buf);

	if (bytes_not_copied)
		return -EFAULT;

	*ppos = len;
	return len;
}

/**
 * i40e_dbg_netdev_ops_write - write into netdev_ops datum
 * @filp: the opened file
 * @buffer: where to find the user's data
 * @count: the length of the user's data
 * @ppos: file position offset
 **/
static ssize_t i40e_dbg_netdev_ops_write(struct file *filp,
					 const char __user *buffer,
					 size_t count, loff_t *ppos)
{
	struct i40e_pf *pf = filp->private_data;
	int bytes_not_copied;
	struct i40e_vsi *vsi;
	char *buf_tmp;
	int vsi_seid;
	int i, cnt;

	/* don't allow partial writes */
	if (*ppos != 0)
		return 0;
	if (count >= sizeof(i40e_dbg_netdev_ops_buf))
		return -ENOSPC;

	memset(i40e_dbg_netdev_ops_buf, 0, sizeof(i40e_dbg_netdev_ops_buf));
	bytes_not_copied = copy_from_user(i40e_dbg_netdev_ops_buf,
					  buffer, count);
	if (bytes_not_copied)
		return -EFAULT;
	i40e_dbg_netdev_ops_buf[count] = '\0';

	buf_tmp = strchr(i40e_dbg_netdev_ops_buf, '\n');
	if (buf_tmp) {
		*buf_tmp = '\0';
		count = buf_tmp - i40e_dbg_netdev_ops_buf + 1;
	}

	if (strncmp(i40e_dbg_netdev_ops_buf, "tx_timeout", 10) == 0) {
		cnt = sscanf(&i40e_dbg_netdev_ops_buf[11], "%i", &vsi_seid);
		if (cnt != 1) {
			dev_info(&pf->pdev->dev, "tx_timeout <vsi_seid>\n");
			goto netdev_ops_write_done;
		}
		vsi = i40e_dbg_find_vsi(pf, vsi_seid);
		if (!vsi) {
			dev_info(&pf->pdev->dev,
				 "tx_timeout: VSI %d not found\n", vsi_seid);
		} else if (!vsi->netdev) {
			dev_info(&pf->pdev->dev, "tx_timeout: no netdev for VSI %d\n",
				 vsi_seid);
		} else if (test_bit(__I40E_VSI_DOWN, vsi->state)) {
			dev_info(&pf->pdev->dev, "tx_timeout: VSI %d not UP\n",
				 vsi_seid);
		} else if (rtnl_trylock()) {
			vsi->netdev->netdev_ops->ndo_tx_timeout(vsi->netdev);
			rtnl_unlock();
			dev_info(&pf->pdev->dev, "tx_timeout called\n");
		} else {
			dev_info(&pf->pdev->dev, "Could not acquire RTNL - please try again\n");
		}
	} else if (strncmp(i40e_dbg_netdev_ops_buf, "change_mtu", 10) == 0) {
		int mtu;

		cnt = sscanf(&i40e_dbg_netdev_ops_buf[11], "%i %i",
			     &vsi_seid, &mtu);
		if (cnt != 2) {
			dev_info(&pf->pdev->dev, "change_mtu <vsi_seid> <mtu>\n");
			goto netdev_ops_write_done;
		}
		vsi = i40e_dbg_find_vsi(pf, vsi_seid);
		if (!vsi) {
			dev_info(&pf->pdev->dev,
				 "change_mtu: VSI %d not found\n", vsi_seid);
		} else if (!vsi->netdev) {
			dev_info(&pf->pdev->dev, "change_mtu: no netdev for VSI %d\n",
				 vsi_seid);
		} else if (rtnl_trylock()) {
			vsi->netdev->netdev_ops->ndo_change_mtu(vsi->netdev,
								mtu);
			rtnl_unlock();
			dev_info(&pf->pdev->dev, "change_mtu called\n");
		} else {
			dev_info(&pf->pdev->dev, "Could not acquire RTNL - please try again\n");
		}

	} else if (strncmp(i40e_dbg_netdev_ops_buf, "set_rx_mode", 11) == 0) {
		cnt = sscanf(&i40e_dbg_netdev_ops_buf[11], "%i", &vsi_seid);
		if (cnt != 1) {
			dev_info(&pf->pdev->dev, "set_rx_mode <vsi_seid>\n");
			goto netdev_ops_write_done;
		}
		vsi = i40e_dbg_find_vsi(pf, vsi_seid);
		if (!vsi) {
			dev_info(&pf->pdev->dev,
				 "set_rx_mode: VSI %d not found\n", vsi_seid);
		} else if (!vsi->netdev) {
			dev_info(&pf->pdev->dev, "set_rx_mode: no netdev for VSI %d\n",
				 vsi_seid);
		} else if (rtnl_trylock()) {
			vsi->netdev->netdev_ops->ndo_set_rx_mode(vsi->netdev);
			rtnl_unlock();
			dev_info(&pf->pdev->dev, "set_rx_mode called\n");
		} else {
			dev_info(&pf->pdev->dev, "Could not acquire RTNL - please try again\n");
		}

	} else if (strncmp(i40e_dbg_netdev_ops_buf, "napi", 4) == 0) {
		cnt = sscanf(&i40e_dbg_netdev_ops_buf[4], "%i", &vsi_seid);
		if (cnt != 1) {
			dev_info(&pf->pdev->dev, "napi <vsi_seid>\n");
			goto netdev_ops_write_done;
		}
		vsi = i40e_dbg_find_vsi(pf, vsi_seid);
		if (!vsi) {
			dev_info(&pf->pdev->dev, "napi: VSI %d not found\n",
				 vsi_seid);
		} else if (!vsi->netdev) {
			dev_info(&pf->pdev->dev, "napi: no netdev for VSI %d\n",
				 vsi_seid);
		} else {
			for (i = 0; i < vsi->num_q_vectors; i++)
				napi_schedule(&vsi->q_vectors[i]->napi);
			dev_info(&pf->pdev->dev, "napi called\n");
		}
	} else {
		dev_info(&pf->pdev->dev, "unknown command '%s'\n",
			 i40e_dbg_netdev_ops_buf);
		dev_info(&pf->pdev->dev, "available commands\n");
		dev_info(&pf->pdev->dev, "  tx_timeout <vsi_seid>\n");
		dev_info(&pf->pdev->dev, "  change_mtu <vsi_seid> <mtu>\n");
		dev_info(&pf->pdev->dev, "  set_rx_mode <vsi_seid>\n");
		dev_info(&pf->pdev->dev, "  napi <vsi_seid>\n");
	}
netdev_ops_write_done:
	return count;
}

static const struct file_operations i40e_dbg_netdev_ops_fops = {
	.owner = THIS_MODULE,
	.open = simple_open,
	.read = i40e_dbg_netdev_ops_read,
	.write = i40e_dbg_netdev_ops_write,
};

/**
 * i40e_dbg_pf_init - setup the debugfs directory for the PF
 * @pf: the PF that is starting up
 **/
void i40e_dbg_pf_init(struct i40e_pf *pf)
{
	struct dentry *pfile;
	const char *name = pci_name(pf->pdev);
	const struct device *dev = &pf->pdev->dev;

	pf->i40e_dbg_pf = debugfs_create_dir(name, i40e_dbg_root);
	if (!pf->i40e_dbg_pf)
		return;

	pfile = debugfs_create_file("command", 0600, pf->i40e_dbg_pf, pf,
				    &i40e_dbg_command_fops);
	if (!pfile)
		goto create_failed;

	pfile = debugfs_create_file("netdev_ops", 0600, pf->i40e_dbg_pf, pf,
				    &i40e_dbg_netdev_ops_fops);
	if (!pfile)
		goto create_failed;

	return;

create_failed:
	dev_info(dev, "debugfs dir/file for %s failed\n", name);
	debugfs_remove_recursive(pf->i40e_dbg_pf);
}

/**
 * i40e_dbg_pf_exit - clear out the PF's debugfs entries
 * @pf: the PF that is stopping
 **/
void i40e_dbg_pf_exit(struct i40e_pf *pf)
{
	debugfs_remove_recursive(pf->i40e_dbg_pf);
	pf->i40e_dbg_pf = NULL;
}

/**
 * i40e_dbg_init - start up debugfs for the driver
 **/
void i40e_dbg_init(void)
{
	i40e_dbg_root = debugfs_create_dir(i40e_driver_name, NULL);
	if (!i40e_dbg_root)
		pr_info("init of debugfs failed\n");
}

/**
 * i40e_dbg_exit - clean out the driver's debugfs entries
 **/
void i40e_dbg_exit(void)
{
	debugfs_remove_recursive(i40e_dbg_root);
	i40e_dbg_root = NULL;
}

#endif /* CONFIG_DEBUG_FS */