summaryrefslogtreecommitdiff
path: root/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
blob: 44462b40f2d7666f059b6741123107755e18e415 (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
1838
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896
1897
1898
1899
1900
1901
1902
1903
1904
1905
1906
1907
1908
1909
1910
1911
1912
1913
1914
1915
1916
1917
1918
1919
1920
1921
1922
1923
1924
1925
1926
1927
1928
1929
1930
1931
1932
1933
1934
1935
1936
1937
1938
1939
1940
1941
1942
1943
1944
1945
1946
1947
1948
1949
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
2028
2029
2030
2031
2032
2033
2034
2035
2036
2037
2038
2039
2040
2041
2042
2043
2044
2045
2046
2047
2048
2049
2050
2051
2052
2053
2054
2055
2056
2057
2058
2059
2060
2061
2062
2063
2064
2065
2066
2067
2068
2069
2070
2071
2072
2073
2074
2075
2076
2077
2078
2079
2080
2081
2082
2083
2084
2085
2086
2087
2088
2089
2090
2091
2092
2093
2094
2095
2096
2097
2098
2099
2100
2101
2102
2103
2104
2105
2106
2107
2108
2109
2110
2111
2112
2113
2114
2115
2116
2117
2118
2119
2120
2121
2122
2123
2124
2125
2126
2127
2128
2129
2130
2131
2132
2133
2134
2135
2136
2137
2138
2139
2140
2141
2142
2143
2144
2145
2146
2147
2148
2149
2150
2151
2152
2153
2154
2155
2156
2157
2158
2159
2160
2161
2162
2163
2164
2165
2166
2167
2168
2169
2170
2171
2172
2173
2174
2175
2176
2177
2178
2179
2180
2181
2182
2183
2184
2185
2186
2187
2188
2189
2190
2191
2192
2193
2194
2195
2196
2197
2198
2199
2200
2201
2202
2203
2204
2205
2206
2207
2208
2209
2210
2211
2212
2213
2214
2215
2216
2217
2218
2219
2220
2221
2222
2223
2224
2225
2226
2227
2228
2229
2230
2231
2232
2233
2234
2235
2236
2237
2238
2239
2240
2241
2242
2243
2244
2245
2246
2247
2248
2249
2250
2251
2252
2253
2254
2255
2256
2257
2258
2259
2260
2261
2262
2263
2264
2265
2266
2267
2268
2269
2270
2271
2272
2273
2274
2275
2276
2277
2278
2279
2280
2281
2282
2283
2284
2285
2286
2287
2288
2289
2290
2291
2292
2293
2294
2295
2296
2297
2298
2299
2300
2301
2302
2303
2304
2305
2306
2307
2308
2309
2310
2311
2312
2313
2314
2315
2316
2317
2318
2319
2320
2321
2322
2323
2324
2325
2326
2327
2328
2329
2330
2331
2332
2333
2334
2335
2336
2337
2338
2339
2340
2341
2342
2343
2344
2345
2346
2347
2348
2349
2350
2351
2352
2353
2354
2355
2356
2357
2358
2359
2360
2361
2362
2363
2364
2365
2366
2367
2368
2369
2370
2371
2372
2373
2374
2375
2376
2377
2378
2379
2380
2381
2382
2383
2384
2385
2386
2387
2388
2389
2390
2391
2392
2393
2394
2395
2396
2397
2398
2399
2400
2401
2402
2403
2404
2405
2406
2407
2408
2409
2410
2411
2412
2413
2414
2415
2416
2417
2418
2419
2420
2421
2422
2423
2424
2425
2426
2427
2428
2429
2430
2431
2432
2433
2434
2435
2436
2437
2438
2439
2440
2441
2442
2443
2444
2445
2446
2447
2448
2449
2450
2451
2452
2453
2454
2455
2456
2457
2458
2459
2460
2461
2462
2463
2464
2465
2466
2467
2468
2469
2470
2471
2472
2473
2474
2475
2476
2477
2478
2479
2480
2481
2482
2483
/*******************************************************************************
 *
 * Intel Ethernet Controller XL710 Family Linux Driver
 * Copyright(c) 2013 - 2015 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
 *
 ******************************************************************************/

#include "i40e.h"

/*********************notification routines***********************/

/**
 * i40e_vc_vf_broadcast
 * @pf: pointer to the PF structure
 * @opcode: operation code
 * @retval: return value
 * @msg: pointer to the msg buffer
 * @msglen: msg length
 *
 * send a message to all VFs on a given PF
 **/
static void i40e_vc_vf_broadcast(struct i40e_pf *pf,
				 enum i40e_virtchnl_ops v_opcode,
				 i40e_status v_retval, u8 *msg,
				 u16 msglen)
{
	struct i40e_hw *hw = &pf->hw;
	struct i40e_vf *vf = pf->vf;
	int i;

	for (i = 0; i < pf->num_alloc_vfs; i++, vf++) {
		int abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id;
		/* Not all vfs are enabled so skip the ones that are not */
		if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states) &&
		    !test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states))
			continue;

		/* Ignore return value on purpose - a given VF may fail, but
		 * we need to keep going and send to all of them
		 */
		i40e_aq_send_msg_to_vf(hw, abs_vf_id, v_opcode, v_retval,
				       msg, msglen, NULL);
	}
}

/**
 * i40e_vc_notify_link_state
 * @vf: pointer to the VF structure
 *
 * send a link status message to a single VF
 **/
static void i40e_vc_notify_vf_link_state(struct i40e_vf *vf)
{
	struct i40e_virtchnl_pf_event pfe;
	struct i40e_pf *pf = vf->pf;
	struct i40e_hw *hw = &pf->hw;
	struct i40e_link_status *ls = &pf->hw.phy.link_info;
	int abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id;

	pfe.event = I40E_VIRTCHNL_EVENT_LINK_CHANGE;
	pfe.severity = I40E_PF_EVENT_SEVERITY_INFO;
	if (vf->link_forced) {
		pfe.event_data.link_event.link_status = vf->link_up;
		pfe.event_data.link_event.link_speed =
			(vf->link_up ? I40E_LINK_SPEED_40GB : 0);
	} else {
		pfe.event_data.link_event.link_status =
			ls->link_info & I40E_AQ_LINK_UP;
		pfe.event_data.link_event.link_speed = ls->link_speed;
	}
	i40e_aq_send_msg_to_vf(hw, abs_vf_id, I40E_VIRTCHNL_OP_EVENT,
			       0, (u8 *)&pfe, sizeof(pfe), NULL);
}

/**
 * i40e_vc_notify_link_state
 * @pf: pointer to the PF structure
 *
 * send a link status message to all VFs on a given PF
 **/
void i40e_vc_notify_link_state(struct i40e_pf *pf)
{
	int i;

	for (i = 0; i < pf->num_alloc_vfs; i++)
		i40e_vc_notify_vf_link_state(&pf->vf[i]);
}

/**
 * i40e_vc_notify_reset
 * @pf: pointer to the PF structure
 *
 * indicate a pending reset to all VFs on a given PF
 **/
void i40e_vc_notify_reset(struct i40e_pf *pf)
{
	struct i40e_virtchnl_pf_event pfe;

	pfe.event = I40E_VIRTCHNL_EVENT_RESET_IMPENDING;
	pfe.severity = I40E_PF_EVENT_SEVERITY_CERTAIN_DOOM;
	i40e_vc_vf_broadcast(pf, I40E_VIRTCHNL_OP_EVENT, 0,
			     (u8 *)&pfe, sizeof(struct i40e_virtchnl_pf_event));
}

/**
 * i40e_vc_notify_vf_reset
 * @vf: pointer to the VF structure
 *
 * indicate a pending reset to the given VF
 **/
void i40e_vc_notify_vf_reset(struct i40e_vf *vf)
{
	struct i40e_virtchnl_pf_event pfe;
	int abs_vf_id;

	/* validate the request */
	if (!vf || vf->vf_id >= vf->pf->num_alloc_vfs)
		return;

	/* verify if the VF is in either init or active before proceeding */
	if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states) &&
	    !test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states))
		return;

	abs_vf_id = vf->vf_id + vf->pf->hw.func_caps.vf_base_id;

	pfe.event = I40E_VIRTCHNL_EVENT_RESET_IMPENDING;
	pfe.severity = I40E_PF_EVENT_SEVERITY_CERTAIN_DOOM;
	i40e_aq_send_msg_to_vf(&vf->pf->hw, abs_vf_id, I40E_VIRTCHNL_OP_EVENT,
			       0, (u8 *)&pfe,
			       sizeof(struct i40e_virtchnl_pf_event), NULL);
}
/***********************misc routines*****************************/

/**
 * i40e_vc_disable_vf
 * @pf: pointer to the PF info
 * @vf: pointer to the VF info
 *
 * Disable the VF through a SW reset
 **/
static inline void i40e_vc_disable_vf(struct i40e_pf *pf, struct i40e_vf *vf)
{
	i40e_vc_notify_vf_reset(vf);
	i40e_reset_vf(vf, false);
}

/**
 * i40e_vc_isvalid_vsi_id
 * @vf: pointer to the VF info
 * @vsi_id: VF relative VSI id
 *
 * check for the valid VSI id
 **/
static inline bool i40e_vc_isvalid_vsi_id(struct i40e_vf *vf, u16 vsi_id)
{
	struct i40e_pf *pf = vf->pf;
	struct i40e_vsi *vsi = i40e_find_vsi_from_id(pf, vsi_id);

	return (vsi && (vsi->vf_id == vf->vf_id));
}

/**
 * i40e_vc_isvalid_queue_id
 * @vf: pointer to the VF info
 * @vsi_id: vsi id
 * @qid: vsi relative queue id
 *
 * check for the valid queue id
 **/
static inline bool i40e_vc_isvalid_queue_id(struct i40e_vf *vf, u16 vsi_id,
					    u8 qid)
{
	struct i40e_pf *pf = vf->pf;
	struct i40e_vsi *vsi = i40e_find_vsi_from_id(pf, vsi_id);

	return (vsi && (qid < vsi->alloc_queue_pairs));
}

/**
 * i40e_vc_isvalid_vector_id
 * @vf: pointer to the VF info
 * @vector_id: VF relative vector id
 *
 * check for the valid vector id
 **/
static inline bool i40e_vc_isvalid_vector_id(struct i40e_vf *vf, u8 vector_id)
{
	struct i40e_pf *pf = vf->pf;

	return vector_id < pf->hw.func_caps.num_msix_vectors_vf;
}

/***********************vf resource mgmt routines*****************/

/**
 * i40e_vc_get_pf_queue_id
 * @vf: pointer to the VF info
 * @vsi_id: id of VSI as provided by the FW
 * @vsi_queue_id: vsi relative queue id
 *
 * return PF relative queue id
 **/
static u16 i40e_vc_get_pf_queue_id(struct i40e_vf *vf, u16 vsi_id,
				   u8 vsi_queue_id)
{
	struct i40e_pf *pf = vf->pf;
	struct i40e_vsi *vsi = i40e_find_vsi_from_id(pf, vsi_id);
	u16 pf_queue_id = I40E_QUEUE_END_OF_LIST;

	if (!vsi)
		return pf_queue_id;

	if (le16_to_cpu(vsi->info.mapping_flags) &
	    I40E_AQ_VSI_QUE_MAP_NONCONTIG)
		pf_queue_id =
			le16_to_cpu(vsi->info.queue_mapping[vsi_queue_id]);
	else
		pf_queue_id = le16_to_cpu(vsi->info.queue_mapping[0]) +
			      vsi_queue_id;

	return pf_queue_id;
}

/**
 * i40e_config_irq_link_list
 * @vf: pointer to the VF info
 * @vsi_id: id of VSI as given by the FW
 * @vecmap: irq map info
 *
 * configure irq link list from the map
 **/
static void i40e_config_irq_link_list(struct i40e_vf *vf, u16 vsi_id,
				      struct i40e_virtchnl_vector_map *vecmap)
{
	unsigned long linklistmap = 0, tempmap;
	struct i40e_pf *pf = vf->pf;
	struct i40e_hw *hw = &pf->hw;
	u16 vsi_queue_id, pf_queue_id;
	enum i40e_queue_type qtype;
	u16 next_q, vector_id;
	u32 reg, reg_idx;
	u16 itr_idx = 0;

	vector_id = vecmap->vector_id;
	/* setup the head */
	if (0 == vector_id)
		reg_idx = I40E_VPINT_LNKLST0(vf->vf_id);
	else
		reg_idx = I40E_VPINT_LNKLSTN(
		     ((pf->hw.func_caps.num_msix_vectors_vf - 1) * vf->vf_id) +
		     (vector_id - 1));

	if (vecmap->rxq_map == 0 && vecmap->txq_map == 0) {
		/* Special case - No queues mapped on this vector */
		wr32(hw, reg_idx, I40E_VPINT_LNKLST0_FIRSTQ_INDX_MASK);
		goto irq_list_done;
	}
	tempmap = vecmap->rxq_map;
	for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) {
		linklistmap |= (BIT(I40E_VIRTCHNL_SUPPORTED_QTYPES *
				    vsi_queue_id));
	}

	tempmap = vecmap->txq_map;
	for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) {
		linklistmap |= (BIT(I40E_VIRTCHNL_SUPPORTED_QTYPES *
				     vsi_queue_id + 1));
	}

	next_q = find_first_bit(&linklistmap,
				(I40E_MAX_VSI_QP *
				 I40E_VIRTCHNL_SUPPORTED_QTYPES));
	vsi_queue_id = next_q/I40E_VIRTCHNL_SUPPORTED_QTYPES;
	qtype = next_q%I40E_VIRTCHNL_SUPPORTED_QTYPES;
	pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_id, vsi_queue_id);
	reg = ((qtype << I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_SHIFT) | pf_queue_id);

	wr32(hw, reg_idx, reg);

	while (next_q < (I40E_MAX_VSI_QP * I40E_VIRTCHNL_SUPPORTED_QTYPES)) {
		switch (qtype) {
		case I40E_QUEUE_TYPE_RX:
			reg_idx = I40E_QINT_RQCTL(pf_queue_id);
			itr_idx = vecmap->rxitr_idx;
			break;
		case I40E_QUEUE_TYPE_TX:
			reg_idx = I40E_QINT_TQCTL(pf_queue_id);
			itr_idx = vecmap->txitr_idx;
			break;
		default:
			break;
		}

		next_q = find_next_bit(&linklistmap,
				       (I40E_MAX_VSI_QP *
					I40E_VIRTCHNL_SUPPORTED_QTYPES),
				       next_q + 1);
		if (next_q <
		    (I40E_MAX_VSI_QP * I40E_VIRTCHNL_SUPPORTED_QTYPES)) {
			vsi_queue_id = next_q / I40E_VIRTCHNL_SUPPORTED_QTYPES;
			qtype = next_q % I40E_VIRTCHNL_SUPPORTED_QTYPES;
			pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_id,
							      vsi_queue_id);
		} else {
			pf_queue_id = I40E_QUEUE_END_OF_LIST;
			qtype = 0;
		}

		/* format for the RQCTL & TQCTL regs is same */
		reg = (vector_id) |
		    (qtype << I40E_QINT_RQCTL_NEXTQ_TYPE_SHIFT) |
		    (pf_queue_id << I40E_QINT_RQCTL_NEXTQ_INDX_SHIFT) |
		    BIT(I40E_QINT_RQCTL_CAUSE_ENA_SHIFT) |
		    (itr_idx << I40E_QINT_RQCTL_ITR_INDX_SHIFT);
		wr32(hw, reg_idx, reg);
	}

	/* if the vf is running in polling mode and using interrupt zero,
	 * need to disable auto-mask on enabling zero interrupt for VFs.
	 */
	if ((vf->driver_caps & I40E_VIRTCHNL_VF_OFFLOAD_RX_POLLING) &&
	    (vector_id == 0)) {
		reg = rd32(hw, I40E_GLINT_CTL);
		if (!(reg & I40E_GLINT_CTL_DIS_AUTOMASK_VF0_MASK)) {
			reg |= I40E_GLINT_CTL_DIS_AUTOMASK_VF0_MASK;
			wr32(hw, I40E_GLINT_CTL, reg);
		}
	}

irq_list_done:
	i40e_flush(hw);
}

/**
 * i40e_config_vsi_tx_queue
 * @vf: pointer to the VF info
 * @vsi_id: id of VSI as provided by the FW
 * @vsi_queue_id: vsi relative queue index
 * @info: config. info
 *
 * configure tx queue
 **/
static int i40e_config_vsi_tx_queue(struct i40e_vf *vf, u16 vsi_id,
				    u16 vsi_queue_id,
				    struct i40e_virtchnl_txq_info *info)
{
	struct i40e_pf *pf = vf->pf;
	struct i40e_hw *hw = &pf->hw;
	struct i40e_hmc_obj_txq tx_ctx;
	struct i40e_vsi *vsi;
	u16 pf_queue_id;
	u32 qtx_ctl;
	int ret = 0;

	pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_id, vsi_queue_id);
	vsi = i40e_find_vsi_from_id(pf, vsi_id);

	/* clear the context structure first */
	memset(&tx_ctx, 0, sizeof(struct i40e_hmc_obj_txq));

	/* only set the required fields */
	tx_ctx.base = info->dma_ring_addr / 128;
	tx_ctx.qlen = info->ring_len;
	tx_ctx.rdylist = le16_to_cpu(vsi->info.qs_handle[0]);
	tx_ctx.rdylist_act = 0;
	tx_ctx.head_wb_ena = info->headwb_enabled;
	tx_ctx.head_wb_addr = info->dma_headwb_addr;

	/* clear the context in the HMC */
	ret = i40e_clear_lan_tx_queue_context(hw, pf_queue_id);
	if (ret) {
		dev_err(&pf->pdev->dev,
			"Failed to clear VF LAN Tx queue context %d, error: %d\n",
			pf_queue_id, ret);
		ret = -ENOENT;
		goto error_context;
	}

	/* set the context in the HMC */
	ret = i40e_set_lan_tx_queue_context(hw, pf_queue_id, &tx_ctx);
	if (ret) {
		dev_err(&pf->pdev->dev,
			"Failed to set VF LAN Tx queue context %d error: %d\n",
			pf_queue_id, ret);
		ret = -ENOENT;
		goto error_context;
	}

	/* associate this queue with the PCI VF function */
	qtx_ctl = I40E_QTX_CTL_VF_QUEUE;
	qtx_ctl |= ((hw->pf_id << I40E_QTX_CTL_PF_INDX_SHIFT)
		    & I40E_QTX_CTL_PF_INDX_MASK);
	qtx_ctl |= (((vf->vf_id + hw->func_caps.vf_base_id)
		     << I40E_QTX_CTL_VFVM_INDX_SHIFT)
		    & I40E_QTX_CTL_VFVM_INDX_MASK);
	wr32(hw, I40E_QTX_CTL(pf_queue_id), qtx_ctl);
	i40e_flush(hw);

error_context:
	return ret;
}

/**
 * i40e_config_vsi_rx_queue
 * @vf: pointer to the VF info
 * @vsi_id: id of VSI  as provided by the FW
 * @vsi_queue_id: vsi relative queue index
 * @info: config. info
 *
 * configure rx queue
 **/
static int i40e_config_vsi_rx_queue(struct i40e_vf *vf, u16 vsi_id,
				    u16 vsi_queue_id,
				    struct i40e_virtchnl_rxq_info *info)
{
	struct i40e_pf *pf = vf->pf;
	struct i40e_hw *hw = &pf->hw;
	struct i40e_hmc_obj_rxq rx_ctx;
	u16 pf_queue_id;
	int ret = 0;

	pf_queue_id = i40e_vc_get_pf_queue_id(vf, vsi_id, vsi_queue_id);

	/* clear the context structure first */
	memset(&rx_ctx, 0, sizeof(struct i40e_hmc_obj_rxq));

	/* only set the required fields */
	rx_ctx.base = info->dma_ring_addr / 128;
	rx_ctx.qlen = info->ring_len;

	if (info->splithdr_enabled) {
		rx_ctx.hsplit_0 = I40E_RX_SPLIT_L2      |
				  I40E_RX_SPLIT_IP      |
				  I40E_RX_SPLIT_TCP_UDP |
				  I40E_RX_SPLIT_SCTP;
		/* header length validation */
		if (info->hdr_size > ((2 * 1024) - 64)) {
			ret = -EINVAL;
			goto error_param;
		}
		rx_ctx.hbuff = info->hdr_size >> I40E_RXQ_CTX_HBUFF_SHIFT;

		/* set splitalways mode 10b */
		rx_ctx.dtype = 0x2;
	}

	/* databuffer length validation */
	if (info->databuffer_size > ((16 * 1024) - 128)) {
		ret = -EINVAL;
		goto error_param;
	}
	rx_ctx.dbuff = info->databuffer_size >> I40E_RXQ_CTX_DBUFF_SHIFT;

	/* max pkt. length validation */
	if (info->max_pkt_size >= (16 * 1024) || info->max_pkt_size < 64) {
		ret = -EINVAL;
		goto error_param;
	}
	rx_ctx.rxmax = info->max_pkt_size;

	/* enable 32bytes desc always */
	rx_ctx.dsize = 1;

	/* default values */
	rx_ctx.lrxqthresh = 2;
	rx_ctx.crcstrip = 1;
	rx_ctx.prefena = 1;
	rx_ctx.l2tsel = 1;

	/* clear the context in the HMC */
	ret = i40e_clear_lan_rx_queue_context(hw, pf_queue_id);
	if (ret) {
		dev_err(&pf->pdev->dev,
			"Failed to clear VF LAN Rx queue context %d, error: %d\n",
			pf_queue_id, ret);
		ret = -ENOENT;
		goto error_param;
	}

	/* set the context in the HMC */
	ret = i40e_set_lan_rx_queue_context(hw, pf_queue_id, &rx_ctx);
	if (ret) {
		dev_err(&pf->pdev->dev,
			"Failed to set VF LAN Rx queue context %d error: %d\n",
			pf_queue_id, ret);
		ret = -ENOENT;
		goto error_param;
	}

error_param:
	return ret;
}

/**
 * i40e_alloc_vsi_res
 * @vf: pointer to the VF info
 * @type: type of VSI to allocate
 *
 * alloc VF vsi context & resources
 **/
static int i40e_alloc_vsi_res(struct i40e_vf *vf, enum i40e_vsi_type type)
{
	struct i40e_mac_filter *f = NULL;
	struct i40e_pf *pf = vf->pf;
	struct i40e_vsi *vsi;
	int ret = 0;

	vsi = i40e_vsi_setup(pf, type, pf->vsi[pf->lan_vsi]->seid, vf->vf_id);

	if (!vsi) {
		dev_err(&pf->pdev->dev,
			"add vsi failed for VF %d, aq_err %d\n",
			vf->vf_id, pf->hw.aq.asq_last_status);
		ret = -ENOENT;
		goto error_alloc_vsi_res;
	}
	if (type == I40E_VSI_SRIOV) {
		u8 brdcast[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};

		vf->lan_vsi_idx = vsi->idx;
		vf->lan_vsi_id = vsi->id;
		/* If the port VLAN has been configured and then the
		 * VF driver was removed then the VSI port VLAN
		 * configuration was destroyed.  Check if there is
		 * a port VLAN and restore the VSI configuration if
		 * needed.
		 */
		if (vf->port_vlan_id)
			i40e_vsi_add_pvid(vsi, vf->port_vlan_id);

		spin_lock_bh(&vsi->mac_filter_list_lock);
		f = i40e_add_filter(vsi, vf->default_lan_addr.addr,
				    vf->port_vlan_id ? vf->port_vlan_id : -1,
				    true, false);
		if (!f)
			dev_info(&pf->pdev->dev,
				 "Could not allocate VF MAC addr\n");
		f = i40e_add_filter(vsi, brdcast,
				    vf->port_vlan_id ? vf->port_vlan_id : -1,
				    true, false);
		if (!f)
			dev_info(&pf->pdev->dev,
				 "Could not allocate VF broadcast filter\n");
		spin_unlock_bh(&vsi->mac_filter_list_lock);
	}

	/* program mac filter */
	ret = i40e_sync_vsi_filters(vsi, false);
	if (ret)
		dev_err(&pf->pdev->dev, "Unable to program ucast filters\n");

	/* Set VF bandwidth if specified */
	if (vf->tx_rate) {
		ret = i40e_aq_config_vsi_bw_limit(&pf->hw, vsi->seid,
						  vf->tx_rate / 50, 0, NULL);
		if (ret)
			dev_err(&pf->pdev->dev, "Unable to set tx rate, VF %d, error code %d.\n",
				vf->vf_id, ret);
	}

error_alloc_vsi_res:
	return ret;
}

/**
 * i40e_enable_vf_mappings
 * @vf: pointer to the VF info
 *
 * enable VF mappings
 **/
static void i40e_enable_vf_mappings(struct i40e_vf *vf)
{
	struct i40e_pf *pf = vf->pf;
	struct i40e_hw *hw = &pf->hw;
	u32 reg, total_queue_pairs = 0;
	int j;

	/* Tell the hardware we're using noncontiguous mapping. HW requires
	 * that VF queues be mapped using this method, even when they are
	 * contiguous in real life
	 */
	wr32(hw, I40E_VSILAN_QBASE(vf->lan_vsi_id),
	     I40E_VSILAN_QBASE_VSIQTABLE_ENA_MASK);

	/* enable VF vplan_qtable mappings */
	reg = I40E_VPLAN_MAPENA_TXRX_ENA_MASK;
	wr32(hw, I40E_VPLAN_MAPENA(vf->vf_id), reg);

	/* map PF queues to VF queues */
	for (j = 0; j < pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs; j++) {
		u16 qid = i40e_vc_get_pf_queue_id(vf, vf->lan_vsi_id, j);

		reg = (qid & I40E_VPLAN_QTABLE_QINDEX_MASK);
		wr32(hw, I40E_VPLAN_QTABLE(total_queue_pairs, vf->vf_id), reg);
		total_queue_pairs++;
	}

	/* map PF queues to VSI */
	for (j = 0; j < 7; j++) {
		if (j * 2 >= pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs) {
			reg = 0x07FF07FF;	/* unused */
		} else {
			u16 qid = i40e_vc_get_pf_queue_id(vf, vf->lan_vsi_id,
							  j * 2);
			reg = qid;
			qid = i40e_vc_get_pf_queue_id(vf, vf->lan_vsi_id,
						      (j * 2) + 1);
			reg |= qid << 16;
		}
		wr32(hw, I40E_VSILAN_QTABLE(j, vf->lan_vsi_id), reg);
	}

	i40e_flush(hw);
}

/**
 * i40e_disable_vf_mappings
 * @vf: pointer to the VF info
 *
 * disable VF mappings
 **/
static void i40e_disable_vf_mappings(struct i40e_vf *vf)
{
	struct i40e_pf *pf = vf->pf;
	struct i40e_hw *hw = &pf->hw;
	int i;

	/* disable qp mappings */
	wr32(hw, I40E_VPLAN_MAPENA(vf->vf_id), 0);
	for (i = 0; i < I40E_MAX_VSI_QP; i++)
		wr32(hw, I40E_VPLAN_QTABLE(i, vf->vf_id),
		     I40E_QUEUE_END_OF_LIST);
	i40e_flush(hw);
}

/**
 * i40e_free_vf_res
 * @vf: pointer to the VF info
 *
 * free VF resources
 **/
static void i40e_free_vf_res(struct i40e_vf *vf)
{
	struct i40e_pf *pf = vf->pf;
	struct i40e_hw *hw = &pf->hw;
	u32 reg_idx, reg;
	int i, msix_vf;

	/* free vsi & disconnect it from the parent uplink */
	if (vf->lan_vsi_idx) {
		i40e_vsi_release(pf->vsi[vf->lan_vsi_idx]);
		vf->lan_vsi_idx = 0;
		vf->lan_vsi_id = 0;
	}
	msix_vf = pf->hw.func_caps.num_msix_vectors_vf;

	/* disable interrupts so the VF starts in a known state */
	for (i = 0; i < msix_vf; i++) {
		/* format is same for both registers */
		if (0 == i)
			reg_idx = I40E_VFINT_DYN_CTL0(vf->vf_id);
		else
			reg_idx = I40E_VFINT_DYN_CTLN(((msix_vf - 1) *
						      (vf->vf_id))
						     + (i - 1));
		wr32(hw, reg_idx, I40E_VFINT_DYN_CTLN_CLEARPBA_MASK);
		i40e_flush(hw);
	}

	/* clear the irq settings */
	for (i = 0; i < msix_vf; i++) {
		/* format is same for both registers */
		if (0 == i)
			reg_idx = I40E_VPINT_LNKLST0(vf->vf_id);
		else
			reg_idx = I40E_VPINT_LNKLSTN(((msix_vf - 1) *
						      (vf->vf_id))
						     + (i - 1));
		reg = (I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_MASK |
		       I40E_VPINT_LNKLSTN_FIRSTQ_INDX_MASK);
		wr32(hw, reg_idx, reg);
		i40e_flush(hw);
	}
	/* reset some of the state varibles keeping
	 * track of the resources
	 */
	vf->num_queue_pairs = 0;
	vf->vf_states = 0;
	clear_bit(I40E_VF_STAT_INIT, &vf->vf_states);
}

/**
 * i40e_alloc_vf_res
 * @vf: pointer to the VF info
 *
 * allocate VF resources
 **/
static int i40e_alloc_vf_res(struct i40e_vf *vf)
{
	struct i40e_pf *pf = vf->pf;
	int total_queue_pairs = 0;
	int ret;

	/* allocate hw vsi context & associated resources */
	ret = i40e_alloc_vsi_res(vf, I40E_VSI_SRIOV);
	if (ret)
		goto error_alloc;
	total_queue_pairs += pf->vsi[vf->lan_vsi_idx]->alloc_queue_pairs;
	set_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps);

	/* store the total qps number for the runtime
	 * VF req validation
	 */
	vf->num_queue_pairs = total_queue_pairs;

	/* VF is now completely initialized */
	set_bit(I40E_VF_STAT_INIT, &vf->vf_states);

error_alloc:
	if (ret)
		i40e_free_vf_res(vf);

	return ret;
}

#define VF_DEVICE_STATUS 0xAA
#define VF_TRANS_PENDING_MASK 0x20
/**
 * i40e_quiesce_vf_pci
 * @vf: pointer to the VF structure
 *
 * Wait for VF PCI transactions to be cleared after reset. Returns -EIO
 * if the transactions never clear.
 **/
static int i40e_quiesce_vf_pci(struct i40e_vf *vf)
{
	struct i40e_pf *pf = vf->pf;
	struct i40e_hw *hw = &pf->hw;
	int vf_abs_id, i;
	u32 reg;

	vf_abs_id = vf->vf_id + hw->func_caps.vf_base_id;

	wr32(hw, I40E_PF_PCI_CIAA,
	     VF_DEVICE_STATUS | (vf_abs_id << I40E_PF_PCI_CIAA_VF_NUM_SHIFT));
	for (i = 0; i < 100; i++) {
		reg = rd32(hw, I40E_PF_PCI_CIAD);
		if ((reg & VF_TRANS_PENDING_MASK) == 0)
			return 0;
		udelay(1);
	}
	return -EIO;
}

/**
 * i40e_reset_vf
 * @vf: pointer to the VF structure
 * @flr: VFLR was issued or not
 *
 * reset the VF
 **/
void i40e_reset_vf(struct i40e_vf *vf, bool flr)
{
	struct i40e_pf *pf = vf->pf;
	struct i40e_hw *hw = &pf->hw;
	bool rsd = false;
	int i;
	u32 reg;

	if (test_and_set_bit(__I40E_VF_DISABLE, &pf->state))
		return;

	/* warn the VF */
	clear_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states);

	/* In the case of a VFLR, the HW has already reset the VF and we
	 * just need to clean up, so don't hit the VFRTRIG register.
	 */
	if (!flr) {
		/* reset VF using VPGEN_VFRTRIG reg */
		reg = rd32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id));
		reg |= I40E_VPGEN_VFRTRIG_VFSWR_MASK;
		wr32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id), reg);
		i40e_flush(hw);
	}

	if (i40e_quiesce_vf_pci(vf))
		dev_err(&pf->pdev->dev, "VF %d PCI transactions stuck\n",
			vf->vf_id);

	/* poll VPGEN_VFRSTAT reg to make sure
	 * that reset is complete
	 */
	for (i = 0; i < 10; i++) {
		/* VF reset requires driver to first reset the VF and then
		 * poll the status register to make sure that the reset
		 * completed successfully. Due to internal HW FIFO flushes,
		 * we must wait 10ms before the register will be valid.
		 */
		usleep_range(10000, 20000);
		reg = rd32(hw, I40E_VPGEN_VFRSTAT(vf->vf_id));
		if (reg & I40E_VPGEN_VFRSTAT_VFRD_MASK) {
			rsd = true;
			break;
		}
	}

	if (flr)
		usleep_range(10000, 20000);

	if (!rsd)
		dev_err(&pf->pdev->dev, "VF reset check timeout on VF %d\n",
			vf->vf_id);
	wr32(hw, I40E_VFGEN_RSTAT1(vf->vf_id), I40E_VFR_COMPLETED);
	/* clear the reset bit in the VPGEN_VFRTRIG reg */
	reg = rd32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id));
	reg &= ~I40E_VPGEN_VFRTRIG_VFSWR_MASK;
	wr32(hw, I40E_VPGEN_VFRTRIG(vf->vf_id), reg);

	/* On initial reset, we won't have any queues */
	if (vf->lan_vsi_idx == 0)
		goto complete_reset;

	i40e_vsi_control_rings(pf->vsi[vf->lan_vsi_idx], false);
complete_reset:
	/* reallocate VF resources to reset the VSI state */
	i40e_free_vf_res(vf);
	if (!i40e_alloc_vf_res(vf)) {
		i40e_enable_vf_mappings(vf);
		set_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states);
		clear_bit(I40E_VF_STAT_DISABLED, &vf->vf_states);
	}
	/* tell the VF the reset is done */
	wr32(hw, I40E_VFGEN_RSTAT1(vf->vf_id), I40E_VFR_VFACTIVE);
	i40e_flush(hw);
	clear_bit(__I40E_VF_DISABLE, &pf->state);
}

/**
 * i40e_free_vfs
 * @pf: pointer to the PF structure
 *
 * free VF resources
 **/
void i40e_free_vfs(struct i40e_pf *pf)
{
	struct i40e_hw *hw = &pf->hw;
	u32 reg_idx, bit_idx;
	int i, tmp, vf_id;

	if (!pf->vf)
		return;
	while (test_and_set_bit(__I40E_VF_DISABLE, &pf->state))
		usleep_range(1000, 2000);

	for (i = 0; i < pf->num_alloc_vfs; i++)
		if (test_bit(I40E_VF_STAT_INIT, &pf->vf[i].vf_states))
			i40e_vsi_control_rings(pf->vsi[pf->vf[i].lan_vsi_idx],
					       false);

	for (i = 0; i < pf->num_alloc_vfs; i++)
		if (test_bit(I40E_VF_STAT_INIT, &pf->vf[i].vf_states))
			i40e_vsi_control_rings(pf->vsi[pf->vf[i].lan_vsi_idx],
					       false);

	/* Disable IOV before freeing resources. This lets any VF drivers
	 * running in the host get themselves cleaned up before we yank
	 * the carpet out from underneath their feet.
	 */
	if (!pci_vfs_assigned(pf->pdev))
		pci_disable_sriov(pf->pdev);
	else
		dev_warn(&pf->pdev->dev, "VFs are assigned - not disabling SR-IOV\n");

	msleep(20); /* let any messages in transit get finished up */

	/* free up VF resources */
	tmp = pf->num_alloc_vfs;
	pf->num_alloc_vfs = 0;
	for (i = 0; i < tmp; i++) {
		if (test_bit(I40E_VF_STAT_INIT, &pf->vf[i].vf_states))
			i40e_free_vf_res(&pf->vf[i]);
		/* disable qp mappings */
		i40e_disable_vf_mappings(&pf->vf[i]);
	}

	kfree(pf->vf);
	pf->vf = NULL;

	/* This check is for when the driver is unloaded while VFs are
	 * assigned. Setting the number of VFs to 0 through sysfs is caught
	 * before this function ever gets called.
	 */
	if (!pci_vfs_assigned(pf->pdev)) {
		/* Acknowledge VFLR for all VFS. Without this, VFs will fail to
		 * work correctly when SR-IOV gets re-enabled.
		 */
		for (vf_id = 0; vf_id < tmp; vf_id++) {
			reg_idx = (hw->func_caps.vf_base_id + vf_id) / 32;
			bit_idx = (hw->func_caps.vf_base_id + vf_id) % 32;
			wr32(hw, I40E_GLGEN_VFLRSTAT(reg_idx), BIT(bit_idx));
		}
	}
	clear_bit(__I40E_VF_DISABLE, &pf->state);
}

#ifdef CONFIG_PCI_IOV
/**
 * i40e_alloc_vfs
 * @pf: pointer to the PF structure
 * @num_alloc_vfs: number of VFs to allocate
 *
 * allocate VF resources
 **/
int i40e_alloc_vfs(struct i40e_pf *pf, u16 num_alloc_vfs)
{
	struct i40e_vf *vfs;
	int i, ret = 0;

	/* Disable interrupt 0 so we don't try to handle the VFLR. */
	i40e_irq_dynamic_disable_icr0(pf);

	/* Check to see if we're just allocating resources for extant VFs */
	if (pci_num_vf(pf->pdev) != num_alloc_vfs) {
		ret = pci_enable_sriov(pf->pdev, num_alloc_vfs);
		if (ret) {
			pf->flags &= ~I40E_FLAG_VEB_MODE_ENABLED;
			pf->num_alloc_vfs = 0;
			goto err_iov;
		}
	}
	/* allocate memory */
	vfs = kcalloc(num_alloc_vfs, sizeof(struct i40e_vf), GFP_KERNEL);
	if (!vfs) {
		ret = -ENOMEM;
		goto err_alloc;
	}
	pf->vf = vfs;

	/* apply default profile */
	for (i = 0; i < num_alloc_vfs; i++) {
		vfs[i].pf = pf;
		vfs[i].parent_type = I40E_SWITCH_ELEMENT_TYPE_VEB;
		vfs[i].vf_id = i;

		/* assign default capabilities */
		set_bit(I40E_VIRTCHNL_VF_CAP_L2, &vfs[i].vf_caps);
		vfs[i].spoofchk = true;
		/* VF resources get allocated during reset */
		i40e_reset_vf(&vfs[i], false);

	}
	pf->num_alloc_vfs = num_alloc_vfs;

err_alloc:
	if (ret)
		i40e_free_vfs(pf);
err_iov:
	/* Re-enable interrupt 0. */
	i40e_irq_dynamic_enable_icr0(pf);
	return ret;
}

#endif
/**
 * i40e_pci_sriov_enable
 * @pdev: pointer to a pci_dev structure
 * @num_vfs: number of VFs to allocate
 *
 * Enable or change the number of VFs
 **/
static int i40e_pci_sriov_enable(struct pci_dev *pdev, int num_vfs)
{
#ifdef CONFIG_PCI_IOV
	struct i40e_pf *pf = pci_get_drvdata(pdev);
	int pre_existing_vfs = pci_num_vf(pdev);
	int err = 0;

	if (test_bit(__I40E_TESTING, &pf->state)) {
		dev_warn(&pdev->dev,
			 "Cannot enable SR-IOV virtual functions while the device is undergoing diagnostic testing\n");
		err = -EPERM;
		goto err_out;
	}

	if (pre_existing_vfs && pre_existing_vfs != num_vfs)
		i40e_free_vfs(pf);
	else if (pre_existing_vfs && pre_existing_vfs == num_vfs)
		goto out;

	if (num_vfs > pf->num_req_vfs) {
		dev_warn(&pdev->dev, "Unable to enable %d VFs. Limited to %d VFs due to device resource constraints.\n",
			 num_vfs, pf->num_req_vfs);
		err = -EPERM;
		goto err_out;
	}

	dev_info(&pdev->dev, "Allocating %d VFs.\n", num_vfs);
	err = i40e_alloc_vfs(pf, num_vfs);
	if (err) {
		dev_warn(&pdev->dev, "Failed to enable SR-IOV: %d\n", err);
		goto err_out;
	}

out:
	return num_vfs;

err_out:
	return err;
#endif
	return 0;
}

/**
 * i40e_pci_sriov_configure
 * @pdev: pointer to a pci_dev structure
 * @num_vfs: number of VFs to allocate
 *
 * Enable or change the number of VFs. Called when the user updates the number
 * of VFs in sysfs.
 **/
int i40e_pci_sriov_configure(struct pci_dev *pdev, int num_vfs)
{
	struct i40e_pf *pf = pci_get_drvdata(pdev);

	if (num_vfs) {
		if (!(pf->flags & I40E_FLAG_VEB_MODE_ENABLED)) {
			pf->flags |= I40E_FLAG_VEB_MODE_ENABLED;
			i40e_do_reset_safe(pf,
					   BIT_ULL(__I40E_PF_RESET_REQUESTED));
		}
		return i40e_pci_sriov_enable(pdev, num_vfs);
	}

	if (!pci_vfs_assigned(pf->pdev)) {
		i40e_free_vfs(pf);
		pf->flags &= ~I40E_FLAG_VEB_MODE_ENABLED;
		i40e_do_reset_safe(pf, BIT_ULL(__I40E_PF_RESET_REQUESTED));
	} else {
		dev_warn(&pdev->dev, "Unable to free VFs because some are assigned to VMs.\n");
		return -EINVAL;
	}
	return 0;
}

/***********************virtual channel routines******************/

/**
 * i40e_vc_send_msg_to_vf
 * @vf: pointer to the VF info
 * @v_opcode: virtual channel opcode
 * @v_retval: virtual channel return value
 * @msg: pointer to the msg buffer
 * @msglen: msg length
 *
 * send msg to VF
 **/
static int i40e_vc_send_msg_to_vf(struct i40e_vf *vf, u32 v_opcode,
				  u32 v_retval, u8 *msg, u16 msglen)
{
	struct i40e_pf *pf;
	struct i40e_hw *hw;
	int abs_vf_id;
	i40e_status aq_ret;

	/* validate the request */
	if (!vf || vf->vf_id >= vf->pf->num_alloc_vfs)
		return -EINVAL;

	pf = vf->pf;
	hw = &pf->hw;
	abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id;

	/* single place to detect unsuccessful return values */
	if (v_retval) {
		vf->num_invalid_msgs++;
		dev_err(&pf->pdev->dev, "Failed opcode %d Error: %d\n",
			v_opcode, v_retval);
		if (vf->num_invalid_msgs >
		    I40E_DEFAULT_NUM_INVALID_MSGS_ALLOWED) {
			dev_err(&pf->pdev->dev,
				"Number of invalid messages exceeded for VF %d\n",
				vf->vf_id);
			dev_err(&pf->pdev->dev, "Use PF Control I/F to enable the VF\n");
			set_bit(I40E_VF_STAT_DISABLED, &vf->vf_states);
		}
	} else {
		vf->num_valid_msgs++;
		/* reset the invalid counter, if a valid message is received. */
		vf->num_invalid_msgs = 0;
	}

	aq_ret = i40e_aq_send_msg_to_vf(hw, abs_vf_id,	v_opcode, v_retval,
					msg, msglen, NULL);
	if (aq_ret) {
		dev_err(&pf->pdev->dev,
			"Unable to send the message to VF %d aq_err %d\n",
			vf->vf_id, pf->hw.aq.asq_last_status);
		return -EIO;
	}

	return 0;
}

/**
 * i40e_vc_send_resp_to_vf
 * @vf: pointer to the VF info
 * @opcode: operation code
 * @retval: return value
 *
 * send resp msg to VF
 **/
static int i40e_vc_send_resp_to_vf(struct i40e_vf *vf,
				   enum i40e_virtchnl_ops opcode,
				   i40e_status retval)
{
	return i40e_vc_send_msg_to_vf(vf, opcode, retval, NULL, 0);
}

/**
 * i40e_vc_get_version_msg
 * @vf: pointer to the VF info
 *
 * called from the VF to request the API version used by the PF
 **/
static int i40e_vc_get_version_msg(struct i40e_vf *vf, u8 *msg)
{
	struct i40e_virtchnl_version_info info = {
		I40E_VIRTCHNL_VERSION_MAJOR, I40E_VIRTCHNL_VERSION_MINOR
	};

	vf->vf_ver = *(struct i40e_virtchnl_version_info *)msg;
	/* VFs running the 1.0 API expect to get 1.0 back or they will cry. */
	if (VF_IS_V10(vf))
		info.minor = I40E_VIRTCHNL_VERSION_MINOR_NO_VF_CAPS;
	return i40e_vc_send_msg_to_vf(vf, I40E_VIRTCHNL_OP_VERSION,
				      I40E_SUCCESS, (u8 *)&info,
				      sizeof(struct
					     i40e_virtchnl_version_info));
}

/**
 * i40e_vc_get_vf_resources_msg
 * @vf: pointer to the VF info
 * @msg: pointer to the msg buffer
 * @msglen: msg length
 *
 * called from the VF to request its resources
 **/
static int i40e_vc_get_vf_resources_msg(struct i40e_vf *vf, u8 *msg)
{
	struct i40e_virtchnl_vf_resource *vfres = NULL;
	struct i40e_pf *pf = vf->pf;
	i40e_status aq_ret = 0;
	struct i40e_vsi *vsi;
	int i = 0, len = 0;
	int num_vsis = 1;
	int ret;

	if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) {
		aq_ret = I40E_ERR_PARAM;
		goto err;
	}

	len = (sizeof(struct i40e_virtchnl_vf_resource) +
	       sizeof(struct i40e_virtchnl_vsi_resource) * num_vsis);

	vfres = kzalloc(len, GFP_KERNEL);
	if (!vfres) {
		aq_ret = I40E_ERR_NO_MEMORY;
		len = 0;
		goto err;
	}
	if (VF_IS_V11(vf))
		vf->driver_caps = *(u32 *)msg;
	else
		vf->driver_caps = I40E_VIRTCHNL_VF_OFFLOAD_L2 |
				  I40E_VIRTCHNL_VF_OFFLOAD_RSS_REG |
				  I40E_VIRTCHNL_VF_OFFLOAD_VLAN;

	vfres->vf_offload_flags = I40E_VIRTCHNL_VF_OFFLOAD_L2;
	vsi = pf->vsi[vf->lan_vsi_idx];
	if (!vsi->info.pvid)
		vfres->vf_offload_flags |= I40E_VIRTCHNL_VF_OFFLOAD_VLAN;
	if (pf->flags & I40E_FLAG_RSS_AQ_CAPABLE) {
		if (vf->driver_caps & I40E_VIRTCHNL_VF_OFFLOAD_RSS_AQ)
			vfres->vf_offload_flags |=
				I40E_VIRTCHNL_VF_OFFLOAD_RSS_AQ;
	} else {
		vfres->vf_offload_flags |= I40E_VIRTCHNL_VF_OFFLOAD_RSS_REG;
	}

	if (vf->driver_caps & I40E_VIRTCHNL_VF_OFFLOAD_RX_POLLING)
		vfres->vf_offload_flags |= I40E_VIRTCHNL_VF_OFFLOAD_RX_POLLING;

	vfres->num_vsis = num_vsis;
	vfres->num_queue_pairs = vf->num_queue_pairs;
	vfres->max_vectors = pf->hw.func_caps.num_msix_vectors_vf;
	if (vf->lan_vsi_idx) {
		vfres->vsi_res[i].vsi_id = vf->lan_vsi_id;
		vfres->vsi_res[i].vsi_type = I40E_VSI_SRIOV;
		vfres->vsi_res[i].num_queue_pairs = vsi->alloc_queue_pairs;
		/* VFs only use TC 0 */
		vfres->vsi_res[i].qset_handle
					  = le16_to_cpu(vsi->info.qs_handle[0]);
		ether_addr_copy(vfres->vsi_res[i].default_mac_addr,
				vf->default_lan_addr.addr);
		i++;
	}
	set_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states);

err:
	/* send the response back to the VF */
	ret = i40e_vc_send_msg_to_vf(vf, I40E_VIRTCHNL_OP_GET_VF_RESOURCES,
				     aq_ret, (u8 *)vfres, len);

	kfree(vfres);
	return ret;
}

/**
 * i40e_vc_reset_vf_msg
 * @vf: pointer to the VF info
 * @msg: pointer to the msg buffer
 * @msglen: msg length
 *
 * called from the VF to reset itself,
 * unlike other virtchnl messages, PF driver
 * doesn't send the response back to the VF
 **/
static void i40e_vc_reset_vf_msg(struct i40e_vf *vf)
{
	if (test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states))
		i40e_reset_vf(vf, false);
}

/**
 * i40e_vc_config_promiscuous_mode_msg
 * @vf: pointer to the VF info
 * @msg: pointer to the msg buffer
 * @msglen: msg length
 *
 * called from the VF to configure the promiscuous mode of
 * VF vsis
 **/
static int i40e_vc_config_promiscuous_mode_msg(struct i40e_vf *vf,
					       u8 *msg, u16 msglen)
{
	struct i40e_virtchnl_promisc_info *info =
	    (struct i40e_virtchnl_promisc_info *)msg;
	struct i40e_pf *pf = vf->pf;
	struct i40e_hw *hw = &pf->hw;
	struct i40e_vsi *vsi;
	bool allmulti = false;
	i40e_status aq_ret;

	vsi = i40e_find_vsi_from_id(pf, info->vsi_id);
	if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
	    !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) ||
	    !i40e_vc_isvalid_vsi_id(vf, info->vsi_id) ||
	    (vsi->type != I40E_VSI_FCOE)) {
		aq_ret = I40E_ERR_PARAM;
		goto error_param;
	}
	if (info->flags & I40E_FLAG_VF_MULTICAST_PROMISC)
		allmulti = true;
	aq_ret = i40e_aq_set_vsi_multicast_promiscuous(hw, vsi->seid,
						       allmulti, NULL);

error_param:
	/* send the response to the VF */
	return i40e_vc_send_resp_to_vf(vf,
				       I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE,
				       aq_ret);
}

/**
 * i40e_vc_config_queues_msg
 * @vf: pointer to the VF info
 * @msg: pointer to the msg buffer
 * @msglen: msg length
 *
 * called from the VF to configure the rx/tx
 * queues
 **/
static int i40e_vc_config_queues_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
{
	struct i40e_virtchnl_vsi_queue_config_info *qci =
	    (struct i40e_virtchnl_vsi_queue_config_info *)msg;
	struct i40e_virtchnl_queue_pair_info *qpi;
	struct i40e_pf *pf = vf->pf;
	u16 vsi_id, vsi_queue_id;
	i40e_status aq_ret = 0;
	int i;

	if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) {
		aq_ret = I40E_ERR_PARAM;
		goto error_param;
	}

	vsi_id = qci->vsi_id;
	if (!i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
		aq_ret = I40E_ERR_PARAM;
		goto error_param;
	}
	for (i = 0; i < qci->num_queue_pairs; i++) {
		qpi = &qci->qpair[i];
		vsi_queue_id = qpi->txq.queue_id;
		if ((qpi->txq.vsi_id != vsi_id) ||
		    (qpi->rxq.vsi_id != vsi_id) ||
		    (qpi->rxq.queue_id != vsi_queue_id) ||
		    !i40e_vc_isvalid_queue_id(vf, vsi_id, vsi_queue_id)) {
			aq_ret = I40E_ERR_PARAM;
			goto error_param;
		}

		if (i40e_config_vsi_rx_queue(vf, vsi_id, vsi_queue_id,
					     &qpi->rxq) ||
		    i40e_config_vsi_tx_queue(vf, vsi_id, vsi_queue_id,
					     &qpi->txq)) {
			aq_ret = I40E_ERR_PARAM;
			goto error_param;
		}
	}
	/* set vsi num_queue_pairs in use to num configured by VF */
	pf->vsi[vf->lan_vsi_idx]->num_queue_pairs = qci->num_queue_pairs;

error_param:
	/* send the response to the VF */
	return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES,
				       aq_ret);
}

/**
 * i40e_vc_config_irq_map_msg
 * @vf: pointer to the VF info
 * @msg: pointer to the msg buffer
 * @msglen: msg length
 *
 * called from the VF to configure the irq to
 * queue map
 **/
static int i40e_vc_config_irq_map_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
{
	struct i40e_virtchnl_irq_map_info *irqmap_info =
	    (struct i40e_virtchnl_irq_map_info *)msg;
	struct i40e_virtchnl_vector_map *map;
	u16 vsi_id, vsi_queue_id, vector_id;
	i40e_status aq_ret = 0;
	unsigned long tempmap;
	int i;

	if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) {
		aq_ret = I40E_ERR_PARAM;
		goto error_param;
	}

	for (i = 0; i < irqmap_info->num_vectors; i++) {
		map = &irqmap_info->vecmap[i];

		vector_id = map->vector_id;
		vsi_id = map->vsi_id;
		/* validate msg params */
		if (!i40e_vc_isvalid_vector_id(vf, vector_id) ||
		    !i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
			aq_ret = I40E_ERR_PARAM;
			goto error_param;
		}

		/* lookout for the invalid queue index */
		tempmap = map->rxq_map;
		for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) {
			if (!i40e_vc_isvalid_queue_id(vf, vsi_id,
						      vsi_queue_id)) {
				aq_ret = I40E_ERR_PARAM;
				goto error_param;
			}
		}

		tempmap = map->txq_map;
		for_each_set_bit(vsi_queue_id, &tempmap, I40E_MAX_VSI_QP) {
			if (!i40e_vc_isvalid_queue_id(vf, vsi_id,
						      vsi_queue_id)) {
				aq_ret = I40E_ERR_PARAM;
				goto error_param;
			}
		}

		i40e_config_irq_link_list(vf, vsi_id, map);
	}
error_param:
	/* send the response to the VF */
	return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP,
				       aq_ret);
}

/**
 * i40e_vc_enable_queues_msg
 * @vf: pointer to the VF info
 * @msg: pointer to the msg buffer
 * @msglen: msg length
 *
 * called from the VF to enable all or specific queue(s)
 **/
static int i40e_vc_enable_queues_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
{
	struct i40e_virtchnl_queue_select *vqs =
	    (struct i40e_virtchnl_queue_select *)msg;
	struct i40e_pf *pf = vf->pf;
	u16 vsi_id = vqs->vsi_id;
	i40e_status aq_ret = 0;

	if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) {
		aq_ret = I40E_ERR_PARAM;
		goto error_param;
	}

	if (!i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
		aq_ret = I40E_ERR_PARAM;
		goto error_param;
	}

	if ((0 == vqs->rx_queues) && (0 == vqs->tx_queues)) {
		aq_ret = I40E_ERR_PARAM;
		goto error_param;
	}

	if (i40e_vsi_control_rings(pf->vsi[vf->lan_vsi_idx], true))
		aq_ret = I40E_ERR_TIMEOUT;
error_param:
	/* send the response to the VF */
	return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_ENABLE_QUEUES,
				       aq_ret);
}

/**
 * i40e_vc_disable_queues_msg
 * @vf: pointer to the VF info
 * @msg: pointer to the msg buffer
 * @msglen: msg length
 *
 * called from the VF to disable all or specific
 * queue(s)
 **/
static int i40e_vc_disable_queues_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
{
	struct i40e_virtchnl_queue_select *vqs =
	    (struct i40e_virtchnl_queue_select *)msg;
	struct i40e_pf *pf = vf->pf;
	i40e_status aq_ret = 0;

	if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) {
		aq_ret = I40E_ERR_PARAM;
		goto error_param;
	}

	if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) {
		aq_ret = I40E_ERR_PARAM;
		goto error_param;
	}

	if ((0 == vqs->rx_queues) && (0 == vqs->tx_queues)) {
		aq_ret = I40E_ERR_PARAM;
		goto error_param;
	}

	if (i40e_vsi_control_rings(pf->vsi[vf->lan_vsi_idx], false))
		aq_ret = I40E_ERR_TIMEOUT;

error_param:
	/* send the response to the VF */
	return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_DISABLE_QUEUES,
				       aq_ret);
}

/**
 * i40e_vc_get_stats_msg
 * @vf: pointer to the VF info
 * @msg: pointer to the msg buffer
 * @msglen: msg length
 *
 * called from the VF to get vsi stats
 **/
static int i40e_vc_get_stats_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
{
	struct i40e_virtchnl_queue_select *vqs =
	    (struct i40e_virtchnl_queue_select *)msg;
	struct i40e_pf *pf = vf->pf;
	struct i40e_eth_stats stats;
	i40e_status aq_ret = 0;
	struct i40e_vsi *vsi;

	memset(&stats, 0, sizeof(struct i40e_eth_stats));

	if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states)) {
		aq_ret = I40E_ERR_PARAM;
		goto error_param;
	}

	if (!i40e_vc_isvalid_vsi_id(vf, vqs->vsi_id)) {
		aq_ret = I40E_ERR_PARAM;
		goto error_param;
	}

	vsi = pf->vsi[vf->lan_vsi_idx];
	if (!vsi) {
		aq_ret = I40E_ERR_PARAM;
		goto error_param;
	}
	i40e_update_eth_stats(vsi);
	stats = vsi->eth_stats;

error_param:
	/* send the response back to the VF */
	return i40e_vc_send_msg_to_vf(vf, I40E_VIRTCHNL_OP_GET_STATS, aq_ret,
				      (u8 *)&stats, sizeof(stats));
}

/**
 * i40e_check_vf_permission
 * @vf: pointer to the VF info
 * @macaddr: pointer to the MAC Address being checked
 *
 * Check if the VF has permission to add or delete unicast MAC address
 * filters and return error code -EPERM if not.  Then check if the
 * address filter requested is broadcast or zero and if so return
 * an invalid MAC address error code.
 **/
static inline int i40e_check_vf_permission(struct i40e_vf *vf, u8 *macaddr)
{
	struct i40e_pf *pf = vf->pf;
	int ret = 0;

	if (is_broadcast_ether_addr(macaddr) ||
		   is_zero_ether_addr(macaddr)) {
		dev_err(&pf->pdev->dev, "invalid VF MAC addr %pM\n", macaddr);
		ret = I40E_ERR_INVALID_MAC_ADDR;
	} else if (vf->pf_set_mac && !is_multicast_ether_addr(macaddr) &&
		   !ether_addr_equal(macaddr, vf->default_lan_addr.addr)) {
		/* If the host VMM administrator has set the VF MAC address
		 * administratively via the ndo_set_vf_mac command then deny
		 * permission to the VF to add or delete unicast MAC addresses.
		 * The VF may request to set the MAC address filter already
		 * assigned to it so do not return an error in that case.
		 */
		dev_err(&pf->pdev->dev,
			"VF attempting to override administratively set MAC address\nPlease reload the VF driver to resume normal operation\n");
		ret = -EPERM;
	}
	return ret;
}

/**
 * i40e_vc_add_mac_addr_msg
 * @vf: pointer to the VF info
 * @msg: pointer to the msg buffer
 * @msglen: msg length
 *
 * add guest mac address filter
 **/
static int i40e_vc_add_mac_addr_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
{
	struct i40e_virtchnl_ether_addr_list *al =
	    (struct i40e_virtchnl_ether_addr_list *)msg;
	struct i40e_pf *pf = vf->pf;
	struct i40e_vsi *vsi = NULL;
	u16 vsi_id = al->vsi_id;
	i40e_status ret = 0;
	int i;

	if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
	    !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) ||
	    !i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
		ret = I40E_ERR_PARAM;
		goto error_param;
	}

	for (i = 0; i < al->num_elements; i++) {
		ret = i40e_check_vf_permission(vf, al->list[i].addr);
		if (ret)
			goto error_param;
	}
	vsi = pf->vsi[vf->lan_vsi_idx];

	/* Lock once, because all function inside for loop accesses VSI's
	 * MAC filter list which needs to be protected using same lock.
	 */
	spin_lock_bh(&vsi->mac_filter_list_lock);

	/* add new addresses to the list */
	for (i = 0; i < al->num_elements; i++) {
		struct i40e_mac_filter *f;

		f = i40e_find_mac(vsi, al->list[i].addr, true, false);
		if (!f) {
			if (i40e_is_vsi_in_vlan(vsi))
				f = i40e_put_mac_in_vlan(vsi, al->list[i].addr,
							 true, false);
			else
				f = i40e_add_filter(vsi, al->list[i].addr, -1,
						    true, false);
		}

		if (!f) {
			dev_err(&pf->pdev->dev,
				"Unable to add VF MAC filter\n");
			ret = I40E_ERR_PARAM;
			spin_unlock_bh(&vsi->mac_filter_list_lock);
			goto error_param;
		}
	}
	spin_unlock_bh(&vsi->mac_filter_list_lock);

	/* program the updated filter list */
	if (i40e_sync_vsi_filters(vsi, false))
		dev_err(&pf->pdev->dev, "Unable to program VF MAC filters\n");

error_param:
	/* send the response to the VF */
	return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS,
				       ret);
}

/**
 * i40e_vc_del_mac_addr_msg
 * @vf: pointer to the VF info
 * @msg: pointer to the msg buffer
 * @msglen: msg length
 *
 * remove guest mac address filter
 **/
static int i40e_vc_del_mac_addr_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
{
	struct i40e_virtchnl_ether_addr_list *al =
	    (struct i40e_virtchnl_ether_addr_list *)msg;
	struct i40e_pf *pf = vf->pf;
	struct i40e_vsi *vsi = NULL;
	u16 vsi_id = al->vsi_id;
	i40e_status ret = 0;
	int i;

	if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
	    !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) ||
	    !i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
		ret = I40E_ERR_PARAM;
		goto error_param;
	}

	for (i = 0; i < al->num_elements; i++) {
		if (is_broadcast_ether_addr(al->list[i].addr) ||
		    is_zero_ether_addr(al->list[i].addr)) {
			dev_err(&pf->pdev->dev, "invalid VF MAC addr %pM\n",
				al->list[i].addr);
			ret = I40E_ERR_INVALID_MAC_ADDR;
			goto error_param;
		}
	}
	vsi = pf->vsi[vf->lan_vsi_idx];

	spin_lock_bh(&vsi->mac_filter_list_lock);
	/* delete addresses from the list */
	for (i = 0; i < al->num_elements; i++)
		i40e_del_filter(vsi, al->list[i].addr,
				I40E_VLAN_ANY, true, false);
	spin_unlock_bh(&vsi->mac_filter_list_lock);

	/* program the updated filter list */
	if (i40e_sync_vsi_filters(vsi, false))
		dev_err(&pf->pdev->dev, "Unable to program VF MAC filters\n");

error_param:
	/* send the response to the VF */
	return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS,
				       ret);
}

/**
 * i40e_vc_add_vlan_msg
 * @vf: pointer to the VF info
 * @msg: pointer to the msg buffer
 * @msglen: msg length
 *
 * program guest vlan id
 **/
static int i40e_vc_add_vlan_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
{
	struct i40e_virtchnl_vlan_filter_list *vfl =
	    (struct i40e_virtchnl_vlan_filter_list *)msg;
	struct i40e_pf *pf = vf->pf;
	struct i40e_vsi *vsi = NULL;
	u16 vsi_id = vfl->vsi_id;
	i40e_status aq_ret = 0;
	int i;

	if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
	    !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) ||
	    !i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
		aq_ret = I40E_ERR_PARAM;
		goto error_param;
	}

	for (i = 0; i < vfl->num_elements; i++) {
		if (vfl->vlan_id[i] > I40E_MAX_VLANID) {
			aq_ret = I40E_ERR_PARAM;
			dev_err(&pf->pdev->dev,
				"invalid VF VLAN id %d\n", vfl->vlan_id[i]);
			goto error_param;
		}
	}
	vsi = pf->vsi[vf->lan_vsi_idx];
	if (vsi->info.pvid) {
		aq_ret = I40E_ERR_PARAM;
		goto error_param;
	}

	i40e_vlan_stripping_enable(vsi);
	for (i = 0; i < vfl->num_elements; i++) {
		/* add new VLAN filter */
		int ret = i40e_vsi_add_vlan(vsi, vfl->vlan_id[i]);

		if (ret)
			dev_err(&pf->pdev->dev,
				"Unable to add VF vlan filter %d, error %d\n",
				vfl->vlan_id[i], ret);
	}

error_param:
	/* send the response to the VF */
	return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_ADD_VLAN, aq_ret);
}

/**
 * i40e_vc_remove_vlan_msg
 * @vf: pointer to the VF info
 * @msg: pointer to the msg buffer
 * @msglen: msg length
 *
 * remove programmed guest vlan id
 **/
static int i40e_vc_remove_vlan_msg(struct i40e_vf *vf, u8 *msg, u16 msglen)
{
	struct i40e_virtchnl_vlan_filter_list *vfl =
	    (struct i40e_virtchnl_vlan_filter_list *)msg;
	struct i40e_pf *pf = vf->pf;
	struct i40e_vsi *vsi = NULL;
	u16 vsi_id = vfl->vsi_id;
	i40e_status aq_ret = 0;
	int i;

	if (!test_bit(I40E_VF_STAT_ACTIVE, &vf->vf_states) ||
	    !test_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps) ||
	    !i40e_vc_isvalid_vsi_id(vf, vsi_id)) {
		aq_ret = I40E_ERR_PARAM;
		goto error_param;
	}

	for (i = 0; i < vfl->num_elements; i++) {
		if (vfl->vlan_id[i] > I40E_MAX_VLANID) {
			aq_ret = I40E_ERR_PARAM;
			goto error_param;
		}
	}

	vsi = pf->vsi[vf->lan_vsi_idx];
	if (vsi->info.pvid) {
		aq_ret = I40E_ERR_PARAM;
		goto error_param;
	}

	for (i = 0; i < vfl->num_elements; i++) {
		int ret = i40e_vsi_kill_vlan(vsi, vfl->vlan_id[i]);

		if (ret)
			dev_err(&pf->pdev->dev,
				"Unable to delete VF vlan filter %d, error %d\n",
				vfl->vlan_id[i], ret);
	}

error_param:
	/* send the response to the VF */
	return i40e_vc_send_resp_to_vf(vf, I40E_VIRTCHNL_OP_DEL_VLAN, aq_ret);
}

/**
 * i40e_vc_validate_vf_msg
 * @vf: pointer to the VF info
 * @msg: pointer to the msg buffer
 * @msglen: msg length
 * @msghndl: msg handle
 *
 * validate msg
 **/
static int i40e_vc_validate_vf_msg(struct i40e_vf *vf, u32 v_opcode,
				   u32 v_retval, u8 *msg, u16 msglen)
{
	bool err_msg_format = false;
	int valid_len;

	/* Check if VF is disabled. */
	if (test_bit(I40E_VF_STAT_DISABLED, &vf->vf_states))
		return I40E_ERR_PARAM;

	/* Validate message length. */
	switch (v_opcode) {
	case I40E_VIRTCHNL_OP_VERSION:
		valid_len = sizeof(struct i40e_virtchnl_version_info);
		break;
	case I40E_VIRTCHNL_OP_RESET_VF:
		valid_len = 0;
		break;
	case I40E_VIRTCHNL_OP_GET_VF_RESOURCES:
		if (VF_IS_V11(vf))
			valid_len = sizeof(u32);
		else
			valid_len = 0;
		break;
	case I40E_VIRTCHNL_OP_CONFIG_TX_QUEUE:
		valid_len = sizeof(struct i40e_virtchnl_txq_info);
		break;
	case I40E_VIRTCHNL_OP_CONFIG_RX_QUEUE:
		valid_len = sizeof(struct i40e_virtchnl_rxq_info);
		break;
	case I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES:
		valid_len = sizeof(struct i40e_virtchnl_vsi_queue_config_info);
		if (msglen >= valid_len) {
			struct i40e_virtchnl_vsi_queue_config_info *vqc =
			    (struct i40e_virtchnl_vsi_queue_config_info *)msg;
			valid_len += (vqc->num_queue_pairs *
				      sizeof(struct
					     i40e_virtchnl_queue_pair_info));
			if (vqc->num_queue_pairs == 0)
				err_msg_format = true;
		}
		break;
	case I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP:
		valid_len = sizeof(struct i40e_virtchnl_irq_map_info);
		if (msglen >= valid_len) {
			struct i40e_virtchnl_irq_map_info *vimi =
			    (struct i40e_virtchnl_irq_map_info *)msg;
			valid_len += (vimi->num_vectors *
				      sizeof(struct i40e_virtchnl_vector_map));
			if (vimi->num_vectors == 0)
				err_msg_format = true;
		}
		break;
	case I40E_VIRTCHNL_OP_ENABLE_QUEUES:
	case I40E_VIRTCHNL_OP_DISABLE_QUEUES:
		valid_len = sizeof(struct i40e_virtchnl_queue_select);
		break;
	case I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS:
	case I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS:
		valid_len = sizeof(struct i40e_virtchnl_ether_addr_list);
		if (msglen >= valid_len) {
			struct i40e_virtchnl_ether_addr_list *veal =
			    (struct i40e_virtchnl_ether_addr_list *)msg;
			valid_len += veal->num_elements *
			    sizeof(struct i40e_virtchnl_ether_addr);
			if (veal->num_elements == 0)
				err_msg_format = true;
		}
		break;
	case I40E_VIRTCHNL_OP_ADD_VLAN:
	case I40E_VIRTCHNL_OP_DEL_VLAN:
		valid_len = sizeof(struct i40e_virtchnl_vlan_filter_list);
		if (msglen >= valid_len) {
			struct i40e_virtchnl_vlan_filter_list *vfl =
			    (struct i40e_virtchnl_vlan_filter_list *)msg;
			valid_len += vfl->num_elements * sizeof(u16);
			if (vfl->num_elements == 0)
				err_msg_format = true;
		}
		break;
	case I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE:
		valid_len = sizeof(struct i40e_virtchnl_promisc_info);
		break;
	case I40E_VIRTCHNL_OP_GET_STATS:
		valid_len = sizeof(struct i40e_virtchnl_queue_select);
		break;
	/* These are always errors coming from the VF. */
	case I40E_VIRTCHNL_OP_EVENT:
	case I40E_VIRTCHNL_OP_UNKNOWN:
	default:
		return -EPERM;
	}
	/* few more checks */
	if ((valid_len != msglen) || (err_msg_format)) {
		i40e_vc_send_resp_to_vf(vf, v_opcode, I40E_ERR_PARAM);
		return -EINVAL;
	} else {
		return 0;
	}
}

/**
 * i40e_vc_process_vf_msg
 * @pf: pointer to the PF structure
 * @vf_id: source VF id
 * @msg: pointer to the msg buffer
 * @msglen: msg length
 * @msghndl: msg handle
 *
 * called from the common aeq/arq handler to
 * process request from VF
 **/
int i40e_vc_process_vf_msg(struct i40e_pf *pf, u16 vf_id, u32 v_opcode,
			   u32 v_retval, u8 *msg, u16 msglen)
{
	struct i40e_hw *hw = &pf->hw;
	unsigned int local_vf_id = vf_id - hw->func_caps.vf_base_id;
	struct i40e_vf *vf;
	int ret;

	pf->vf_aq_requests++;
	if (local_vf_id >= pf->num_alloc_vfs)
		return -EINVAL;
	vf = &(pf->vf[local_vf_id]);
	/* perform basic checks on the msg */
	ret = i40e_vc_validate_vf_msg(vf, v_opcode, v_retval, msg, msglen);

	if (ret) {
		dev_err(&pf->pdev->dev, "Invalid message from VF %d, opcode %d, len %d\n",
			local_vf_id, v_opcode, msglen);
		return ret;
	}

	switch (v_opcode) {
	case I40E_VIRTCHNL_OP_VERSION:
		ret = i40e_vc_get_version_msg(vf, msg);
		break;
	case I40E_VIRTCHNL_OP_GET_VF_RESOURCES:
		ret = i40e_vc_get_vf_resources_msg(vf, msg);
		break;
	case I40E_VIRTCHNL_OP_RESET_VF:
		i40e_vc_reset_vf_msg(vf);
		ret = 0;
		break;
	case I40E_VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE:
		ret = i40e_vc_config_promiscuous_mode_msg(vf, msg, msglen);
		break;
	case I40E_VIRTCHNL_OP_CONFIG_VSI_QUEUES:
		ret = i40e_vc_config_queues_msg(vf, msg, msglen);
		break;
	case I40E_VIRTCHNL_OP_CONFIG_IRQ_MAP:
		ret = i40e_vc_config_irq_map_msg(vf, msg, msglen);
		break;
	case I40E_VIRTCHNL_OP_ENABLE_QUEUES:
		ret = i40e_vc_enable_queues_msg(vf, msg, msglen);
		i40e_vc_notify_vf_link_state(vf);
		break;
	case I40E_VIRTCHNL_OP_DISABLE_QUEUES:
		ret = i40e_vc_disable_queues_msg(vf, msg, msglen);
		break;
	case I40E_VIRTCHNL_OP_ADD_ETHER_ADDRESS:
		ret = i40e_vc_add_mac_addr_msg(vf, msg, msglen);
		break;
	case I40E_VIRTCHNL_OP_DEL_ETHER_ADDRESS:
		ret = i40e_vc_del_mac_addr_msg(vf, msg, msglen);
		break;
	case I40E_VIRTCHNL_OP_ADD_VLAN:
		ret = i40e_vc_add_vlan_msg(vf, msg, msglen);
		break;
	case I40E_VIRTCHNL_OP_DEL_VLAN:
		ret = i40e_vc_remove_vlan_msg(vf, msg, msglen);
		break;
	case I40E_VIRTCHNL_OP_GET_STATS:
		ret = i40e_vc_get_stats_msg(vf, msg, msglen);
		break;
	case I40E_VIRTCHNL_OP_UNKNOWN:
	default:
		dev_err(&pf->pdev->dev, "Unsupported opcode %d from VF %d\n",
			v_opcode, local_vf_id);
		ret = i40e_vc_send_resp_to_vf(vf, v_opcode,
					      I40E_ERR_NOT_IMPLEMENTED);
		break;
	}

	return ret;
}

/**
 * i40e_vc_process_vflr_event
 * @pf: pointer to the PF structure
 *
 * called from the vlfr irq handler to
 * free up VF resources and state variables
 **/
int i40e_vc_process_vflr_event(struct i40e_pf *pf)
{
	u32 reg, reg_idx, bit_idx, vf_id;
	struct i40e_hw *hw = &pf->hw;
	struct i40e_vf *vf;

	if (!test_bit(__I40E_VFLR_EVENT_PENDING, &pf->state))
		return 0;

	/* re-enable vflr interrupt cause */
	reg = rd32(hw, I40E_PFINT_ICR0_ENA);
	reg |= I40E_PFINT_ICR0_ENA_VFLR_MASK;
	wr32(hw, I40E_PFINT_ICR0_ENA, reg);
	i40e_flush(hw);

	clear_bit(__I40E_VFLR_EVENT_PENDING, &pf->state);
	for (vf_id = 0; vf_id < pf->num_alloc_vfs; vf_id++) {
		reg_idx = (hw->func_caps.vf_base_id + vf_id) / 32;
		bit_idx = (hw->func_caps.vf_base_id + vf_id) % 32;
		/* read GLGEN_VFLRSTAT register to find out the flr VFs */
		vf = &pf->vf[vf_id];
		reg = rd32(hw, I40E_GLGEN_VFLRSTAT(reg_idx));
		if (reg & BIT(bit_idx)) {
			/* clear the bit in GLGEN_VFLRSTAT */
			wr32(hw, I40E_GLGEN_VFLRSTAT(reg_idx), BIT(bit_idx));

			if (!test_bit(__I40E_DOWN, &pf->state))
				i40e_reset_vf(vf, true);
		}
	}

	return 0;
}

/**
 * i40e_ndo_set_vf_mac
 * @netdev: network interface device structure
 * @vf_id: VF identifier
 * @mac: mac address
 *
 * program VF mac address
 **/
int i40e_ndo_set_vf_mac(struct net_device *netdev, int vf_id, u8 *mac)
{
	struct i40e_netdev_priv *np = netdev_priv(netdev);
	struct i40e_vsi *vsi = np->vsi;
	struct i40e_pf *pf = vsi->back;
	struct i40e_mac_filter *f;
	struct i40e_vf *vf;
	int ret = 0;

	/* validate the request */
	if (vf_id >= pf->num_alloc_vfs) {
		dev_err(&pf->pdev->dev,
			"Invalid VF Identifier %d\n", vf_id);
		ret = -EINVAL;
		goto error_param;
	}

	vf = &(pf->vf[vf_id]);
	vsi = pf->vsi[vf->lan_vsi_idx];
	if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) {
		dev_err(&pf->pdev->dev,
			"Uninitialized VF %d\n", vf_id);
		ret = -EINVAL;
		goto error_param;
	}

	if (!is_valid_ether_addr(mac)) {
		dev_err(&pf->pdev->dev,
			"Invalid VF ethernet address\n");
		ret = -EINVAL;
		goto error_param;
	}

	/* Lock once because below invoked function add/del_filter requires
	 * mac_filter_list_lock to be held
	 */
	spin_lock_bh(&vsi->mac_filter_list_lock);

	/* delete the temporary mac address */
	i40e_del_filter(vsi, vf->default_lan_addr.addr,
			vf->port_vlan_id ? vf->port_vlan_id : -1,
			true, false);

	/* Delete all the filters for this VSI - we're going to kill it
	 * anyway.
	 */
	list_for_each_entry(f, &vsi->mac_filter_list, list)
		i40e_del_filter(vsi, f->macaddr, f->vlan, true, false);

	spin_unlock_bh(&vsi->mac_filter_list_lock);

	dev_info(&pf->pdev->dev, "Setting MAC %pM on VF %d\n", mac, vf_id);
	/* program mac filter */
	if (i40e_sync_vsi_filters(vsi, false)) {
		dev_err(&pf->pdev->dev, "Unable to program ucast filters\n");
		ret = -EIO;
		goto error_param;
	}
	ether_addr_copy(vf->default_lan_addr.addr, mac);
	vf->pf_set_mac = true;
	/* Force the VF driver stop so it has to reload with new MAC address */
	i40e_vc_disable_vf(pf, vf);
	dev_info(&pf->pdev->dev, "Reload the VF driver to make this change effective.\n");

error_param:
	return ret;
}

/**
 * i40e_ndo_set_vf_port_vlan
 * @netdev: network interface device structure
 * @vf_id: VF identifier
 * @vlan_id: mac address
 * @qos: priority setting
 *
 * program VF vlan id and/or qos
 **/
int i40e_ndo_set_vf_port_vlan(struct net_device *netdev,
			      int vf_id, u16 vlan_id, u8 qos)
{
	u16 vlanprio = vlan_id | (qos << I40E_VLAN_PRIORITY_SHIFT);
	struct i40e_netdev_priv *np = netdev_priv(netdev);
	struct i40e_pf *pf = np->vsi->back;
	bool is_vsi_in_vlan = false;
	struct i40e_vsi *vsi;
	struct i40e_vf *vf;
	int ret = 0;

	/* validate the request */
	if (vf_id >= pf->num_alloc_vfs) {
		dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
		ret = -EINVAL;
		goto error_pvid;
	}

	if ((vlan_id > I40E_MAX_VLANID) || (qos > 7)) {
		dev_err(&pf->pdev->dev, "Invalid VF Parameters\n");
		ret = -EINVAL;
		goto error_pvid;
	}

	vf = &(pf->vf[vf_id]);
	vsi = pf->vsi[vf->lan_vsi_idx];
	if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) {
		dev_err(&pf->pdev->dev, "Uninitialized VF %d\n", vf_id);
		ret = -EINVAL;
		goto error_pvid;
	}

	if (le16_to_cpu(vsi->info.pvid) == vlanprio)
		/* duplicate request, so just return success */
		goto error_pvid;

	spin_lock_bh(&vsi->mac_filter_list_lock);
	is_vsi_in_vlan = i40e_is_vsi_in_vlan(vsi);
	spin_unlock_bh(&vsi->mac_filter_list_lock);

	if (le16_to_cpu(vsi->info.pvid) == 0 && is_vsi_in_vlan) {
		dev_err(&pf->pdev->dev,
			"VF %d has already configured VLAN filters and the administrator is requesting a port VLAN override.\nPlease unload and reload the VF driver for this change to take effect.\n",
			vf_id);
		/* Administrator Error - knock the VF offline until he does
		 * the right thing by reconfiguring his network correctly
		 * and then reloading the VF driver.
		 */
		i40e_vc_disable_vf(pf, vf);
	}

	/* Check for condition where there was already a port VLAN ID
	 * filter set and now it is being deleted by setting it to zero.
	 * Additionally check for the condition where there was a port
	 * VLAN but now there is a new and different port VLAN being set.
	 * Before deleting all the old VLAN filters we must add new ones
	 * with -1 (I40E_VLAN_ANY) or otherwise we're left with all our
	 * MAC addresses deleted.
	 */
	if ((!(vlan_id || qos) ||
	    vlanprio != le16_to_cpu(vsi->info.pvid)) &&
	    vsi->info.pvid)
		ret = i40e_vsi_add_vlan(vsi, I40E_VLAN_ANY);

	if (vsi->info.pvid) {
		/* kill old VLAN */
		ret = i40e_vsi_kill_vlan(vsi, (le16_to_cpu(vsi->info.pvid) &
					       VLAN_VID_MASK));
		if (ret) {
			dev_info(&vsi->back->pdev->dev,
				 "remove VLAN failed, ret=%d, aq_err=%d\n",
				 ret, pf->hw.aq.asq_last_status);
		}
	}
	if (vlan_id || qos)
		ret = i40e_vsi_add_pvid(vsi, vlanprio);
	else
		i40e_vsi_remove_pvid(vsi);

	if (vlan_id) {
		dev_info(&pf->pdev->dev, "Setting VLAN %d, QOS 0x%x on VF %d\n",
			 vlan_id, qos, vf_id);

		/* add new VLAN filter */
		ret = i40e_vsi_add_vlan(vsi, vlan_id);
		if (ret) {
			dev_info(&vsi->back->pdev->dev,
				 "add VF VLAN failed, ret=%d aq_err=%d\n", ret,
				 vsi->back->hw.aq.asq_last_status);
			goto error_pvid;
		}
		/* Kill non-vlan MAC filters - ignore error return since
		 * there might not be any non-vlan MAC filters.
		 */
		i40e_vsi_kill_vlan(vsi, I40E_VLAN_ANY);
	}

	if (ret) {
		dev_err(&pf->pdev->dev, "Unable to update VF vsi context\n");
		goto error_pvid;
	}
	/* The Port VLAN needs to be saved across resets the same as the
	 * default LAN MAC address.
	 */
	vf->port_vlan_id = le16_to_cpu(vsi->info.pvid);
	ret = 0;

error_pvid:
	return ret;
}

#define I40E_BW_CREDIT_DIVISOR 50     /* 50Mbps per BW credit */
#define I40E_MAX_BW_INACTIVE_ACCUM 4  /* device can accumulate 4 credits max */
/**
 * i40e_ndo_set_vf_bw
 * @netdev: network interface device structure
 * @vf_id: VF identifier
 * @tx_rate: Tx rate
 *
 * configure VF Tx rate
 **/
int i40e_ndo_set_vf_bw(struct net_device *netdev, int vf_id, int min_tx_rate,
		       int max_tx_rate)
{
	struct i40e_netdev_priv *np = netdev_priv(netdev);
	struct i40e_pf *pf = np->vsi->back;
	struct i40e_vsi *vsi;
	struct i40e_vf *vf;
	int speed = 0;
	int ret = 0;

	/* validate the request */
	if (vf_id >= pf->num_alloc_vfs) {
		dev_err(&pf->pdev->dev, "Invalid VF Identifier %d.\n", vf_id);
		ret = -EINVAL;
		goto error;
	}

	if (min_tx_rate) {
		dev_err(&pf->pdev->dev, "Invalid min tx rate (%d) (greater than 0) specified for VF %d.\n",
			min_tx_rate, vf_id);
		return -EINVAL;
	}

	vf = &(pf->vf[vf_id]);
	vsi = pf->vsi[vf->lan_vsi_idx];
	if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) {
		dev_err(&pf->pdev->dev, "Uninitialized VF %d.\n", vf_id);
		ret = -EINVAL;
		goto error;
	}

	switch (pf->hw.phy.link_info.link_speed) {
	case I40E_LINK_SPEED_40GB:
		speed = 40000;
		break;
	case I40E_LINK_SPEED_10GB:
		speed = 10000;
		break;
	case I40E_LINK_SPEED_1GB:
		speed = 1000;
		break;
	default:
		break;
	}

	if (max_tx_rate > speed) {
		dev_err(&pf->pdev->dev, "Invalid max tx rate %d specified for VF %d.",
			max_tx_rate, vf->vf_id);
		ret = -EINVAL;
		goto error;
	}

	if ((max_tx_rate < 50) && (max_tx_rate > 0)) {
		dev_warn(&pf->pdev->dev, "Setting max Tx rate to minimum usable value of 50Mbps.\n");
		max_tx_rate = 50;
	}

	/* Tx rate credits are in values of 50Mbps, 0 is disabled*/
	ret = i40e_aq_config_vsi_bw_limit(&pf->hw, vsi->seid,
					  max_tx_rate / I40E_BW_CREDIT_DIVISOR,
					  I40E_MAX_BW_INACTIVE_ACCUM, NULL);
	if (ret) {
		dev_err(&pf->pdev->dev, "Unable to set max tx rate, error code %d.\n",
			ret);
		ret = -EIO;
		goto error;
	}
	vf->tx_rate = max_tx_rate;
error:
	return ret;
}

/**
 * i40e_ndo_get_vf_config
 * @netdev: network interface device structure
 * @vf_id: VF identifier
 * @ivi: VF configuration structure
 *
 * return VF configuration
 **/
int i40e_ndo_get_vf_config(struct net_device *netdev,
			   int vf_id, struct ifla_vf_info *ivi)
{
	struct i40e_netdev_priv *np = netdev_priv(netdev);
	struct i40e_vsi *vsi = np->vsi;
	struct i40e_pf *pf = vsi->back;
	struct i40e_vf *vf;
	int ret = 0;

	/* validate the request */
	if (vf_id >= pf->num_alloc_vfs) {
		dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
		ret = -EINVAL;
		goto error_param;
	}

	vf = &(pf->vf[vf_id]);
	/* first vsi is always the LAN vsi */
	vsi = pf->vsi[vf->lan_vsi_idx];
	if (!test_bit(I40E_VF_STAT_INIT, &vf->vf_states)) {
		dev_err(&pf->pdev->dev, "Uninitialized VF %d\n", vf_id);
		ret = -EINVAL;
		goto error_param;
	}

	ivi->vf = vf_id;

	ether_addr_copy(ivi->mac, vf->default_lan_addr.addr);

	ivi->max_tx_rate = vf->tx_rate;
	ivi->min_tx_rate = 0;
	ivi->vlan = le16_to_cpu(vsi->info.pvid) & I40E_VLAN_MASK;
	ivi->qos = (le16_to_cpu(vsi->info.pvid) & I40E_PRIORITY_MASK) >>
		   I40E_VLAN_PRIORITY_SHIFT;
	if (vf->link_forced == false)
		ivi->linkstate = IFLA_VF_LINK_STATE_AUTO;
	else if (vf->link_up == true)
		ivi->linkstate = IFLA_VF_LINK_STATE_ENABLE;
	else
		ivi->linkstate = IFLA_VF_LINK_STATE_DISABLE;
	ivi->spoofchk = vf->spoofchk;
	ret = 0;

error_param:
	return ret;
}

/**
 * i40e_ndo_set_vf_link_state
 * @netdev: network interface device structure
 * @vf_id: VF identifier
 * @link: required link state
 *
 * Set the link state of a specified VF, regardless of physical link state
 **/
int i40e_ndo_set_vf_link_state(struct net_device *netdev, int vf_id, int link)
{
	struct i40e_netdev_priv *np = netdev_priv(netdev);
	struct i40e_pf *pf = np->vsi->back;
	struct i40e_virtchnl_pf_event pfe;
	struct i40e_hw *hw = &pf->hw;
	struct i40e_vf *vf;
	int abs_vf_id;
	int ret = 0;

	/* validate the request */
	if (vf_id >= pf->num_alloc_vfs) {
		dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
		ret = -EINVAL;
		goto error_out;
	}

	vf = &pf->vf[vf_id];
	abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id;

	pfe.event = I40E_VIRTCHNL_EVENT_LINK_CHANGE;
	pfe.severity = I40E_PF_EVENT_SEVERITY_INFO;

	switch (link) {
	case IFLA_VF_LINK_STATE_AUTO:
		vf->link_forced = false;
		pfe.event_data.link_event.link_status =
			pf->hw.phy.link_info.link_info & I40E_AQ_LINK_UP;
		pfe.event_data.link_event.link_speed =
			pf->hw.phy.link_info.link_speed;
		break;
	case IFLA_VF_LINK_STATE_ENABLE:
		vf->link_forced = true;
		vf->link_up = true;
		pfe.event_data.link_event.link_status = true;
		pfe.event_data.link_event.link_speed = I40E_LINK_SPEED_40GB;
		break;
	case IFLA_VF_LINK_STATE_DISABLE:
		vf->link_forced = true;
		vf->link_up = false;
		pfe.event_data.link_event.link_status = false;
		pfe.event_data.link_event.link_speed = 0;
		break;
	default:
		ret = -EINVAL;
		goto error_out;
	}
	/* Notify the VF of its new link state */
	i40e_aq_send_msg_to_vf(hw, abs_vf_id, I40E_VIRTCHNL_OP_EVENT,
			       0, (u8 *)&pfe, sizeof(pfe), NULL);

error_out:
	return ret;
}

/**
 * i40e_ndo_set_vf_spoofchk
 * @netdev: network interface device structure
 * @vf_id: VF identifier
 * @enable: flag to enable or disable feature
 *
 * Enable or disable VF spoof checking
 **/
int i40e_ndo_set_vf_spoofchk(struct net_device *netdev, int vf_id, bool enable)
{
	struct i40e_netdev_priv *np = netdev_priv(netdev);
	struct i40e_vsi *vsi = np->vsi;
	struct i40e_pf *pf = vsi->back;
	struct i40e_vsi_context ctxt;
	struct i40e_hw *hw = &pf->hw;
	struct i40e_vf *vf;
	int ret = 0;

	/* validate the request */
	if (vf_id >= pf->num_alloc_vfs) {
		dev_err(&pf->pdev->dev, "Invalid VF Identifier %d\n", vf_id);
		ret = -EINVAL;
		goto out;
	}

	vf = &(pf->vf[vf_id]);

	if (enable == vf->spoofchk)
		goto out;

	vf->spoofchk = enable;
	memset(&ctxt, 0, sizeof(ctxt));
	ctxt.seid = pf->vsi[vf->lan_vsi_idx]->seid;
	ctxt.pf_num = pf->hw.pf_id;
	ctxt.info.valid_sections = cpu_to_le16(I40E_AQ_VSI_PROP_SECURITY_VALID);
	if (enable)
		ctxt.info.sec_flags |= (I40E_AQ_VSI_SEC_FLAG_ENABLE_VLAN_CHK |
					I40E_AQ_VSI_SEC_FLAG_ENABLE_MAC_CHK);
	ret = i40e_aq_update_vsi_params(hw, &ctxt, NULL);
	if (ret) {
		dev_err(&pf->pdev->dev, "Error %d updating VSI parameters\n",
			ret);
		ret = -EIO;
	}
out:
	return ret;
}