summaryrefslogtreecommitdiffstats
path: root/kernel/drivers/net/ethernet/intel/ixgbe/ixgbe_82599.c
blob: a39afcf03e2c4a84fb6e6aea7960c47a3d589528 (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
/*******************************************************************************

  Intel 10 Gigabit PCI Express Linux driver
  Copyright(c) 1999 - 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, write to the Free Software Foundation, Inc.,
  51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.

  The full GNU General Public License is included in this distribution in
  the file called "COPYING".

  Contact Information:
  Linux NICS <linux.nics@intel.com>
  e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
  Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497

*******************************************************************************/

#include <linux/pci.h>
#include <linux/delay.h>
#include <linux/sched.h>

#include "ixgbe.h"
#include "ixgbe_phy.h"
#include "ixgbe_mbx.h"

#define IXGBE_82599_MAX_TX_QUEUES 128
#define IXGBE_82599_MAX_RX_QUEUES 128
#define IXGBE_82599_RAR_ENTRIES   128
#define IXGBE_82599_MC_TBL_SIZE   128
#define IXGBE_82599_VFT_TBL_SIZE  128
#define IXGBE_82599_RX_PB_SIZE	  512

static void ixgbe_disable_tx_laser_multispeed_fiber(struct ixgbe_hw *hw);
static void ixgbe_enable_tx_laser_multispeed_fiber(struct ixgbe_hw *hw);
static void ixgbe_flap_tx_laser_multispeed_fiber(struct ixgbe_hw *hw);
static void
ixgbe_set_hard_rate_select_speed(struct ixgbe_hw *, ixgbe_link_speed);
static s32 ixgbe_setup_mac_link_smartspeed(struct ixgbe_hw *hw,
					   ixgbe_link_speed speed,
					   bool autoneg_wait_to_complete);
static void ixgbe_stop_mac_link_on_d3_82599(struct ixgbe_hw *hw);
static s32 ixgbe_start_mac_link_82599(struct ixgbe_hw *hw,
				      bool autoneg_wait_to_complete);
static s32 ixgbe_setup_mac_link_82599(struct ixgbe_hw *hw,
			       ixgbe_link_speed speed,
			       bool autoneg_wait_to_complete);
static s32 ixgbe_setup_copper_link_82599(struct ixgbe_hw *hw,
					 ixgbe_link_speed speed,
					 bool autoneg_wait_to_complete);
static s32 ixgbe_verify_fw_version_82599(struct ixgbe_hw *hw);
static s32 ixgbe_read_i2c_byte_82599(struct ixgbe_hw *hw, u8 byte_offset,
				     u8 dev_addr, u8 *data);
static s32 ixgbe_write_i2c_byte_82599(struct ixgbe_hw *hw, u8 byte_offset,
				      u8 dev_addr, u8 data);
static s32 ixgbe_reset_pipeline_82599(struct ixgbe_hw *hw);
static bool ixgbe_verify_lesm_fw_enabled_82599(struct ixgbe_hw *hw);

bool ixgbe_mng_enabled(struct ixgbe_hw *hw)
{
	u32 fwsm, manc, factps;

	fwsm = IXGBE_READ_REG(hw, IXGBE_FWSM(hw));
	if ((fwsm & IXGBE_FWSM_MODE_MASK) != IXGBE_FWSM_FW_MODE_PT)
		return false;

	manc = IXGBE_READ_REG(hw, IXGBE_MANC);
	if (!(manc & IXGBE_MANC_RCV_TCO_EN))
		return false;

	factps = IXGBE_READ_REG(hw, IXGBE_FACTPS(hw));
	if (factps & IXGBE_FACTPS_MNGCG)
		return false;

	return true;
}

static void ixgbe_init_mac_link_ops_82599(struct ixgbe_hw *hw)
{
	struct ixgbe_mac_info *mac = &hw->mac;

	/* enable the laser control functions for SFP+ fiber
	 * and MNG not enabled
	 */
	if ((mac->ops.get_media_type(hw) == ixgbe_media_type_fiber) &&
	    !ixgbe_mng_enabled(hw)) {
		mac->ops.disable_tx_laser =
				       &ixgbe_disable_tx_laser_multispeed_fiber;
		mac->ops.enable_tx_laser =
					&ixgbe_enable_tx_laser_multispeed_fiber;
		mac->ops.flap_tx_laser = &ixgbe_flap_tx_laser_multispeed_fiber;
	} else {
		mac->ops.disable_tx_laser = NULL;
		mac->ops.enable_tx_laser = NULL;
		mac->ops.flap_tx_laser = NULL;
	}

	if (hw->phy.multispeed_fiber) {
		/* Set up dual speed SFP+ support */
		mac->ops.setup_link = &ixgbe_setup_mac_link_multispeed_fiber;
		mac->ops.setup_mac_link = ixgbe_setup_mac_link_82599;
		mac->ops.set_rate_select_speed =
					       ixgbe_set_hard_rate_select_speed;
	} else {
		if ((mac->ops.get_media_type(hw) ==
		     ixgbe_media_type_backplane) &&
		    (hw->phy.smart_speed == ixgbe_smart_speed_auto ||
		     hw->phy.smart_speed == ixgbe_smart_speed_on) &&
		     !ixgbe_verify_lesm_fw_enabled_82599(hw))
			mac->ops.setup_link = &ixgbe_setup_mac_link_smartspeed;
		else
			mac->ops.setup_link = &ixgbe_setup_mac_link_82599;
	}
}

static s32 ixgbe_setup_sfp_modules_82599(struct ixgbe_hw *hw)
{
	s32 ret_val;
	u16 list_offset, data_offset, data_value;

	if (hw->phy.sfp_type != ixgbe_sfp_type_unknown) {
		ixgbe_init_mac_link_ops_82599(hw);

		hw->phy.ops.reset = NULL;

		ret_val = ixgbe_get_sfp_init_sequence_offsets(hw, &list_offset,
							      &data_offset);
		if (ret_val)
			return ret_val;

		/* PHY config will finish before releasing the semaphore */
		ret_val = hw->mac.ops.acquire_swfw_sync(hw,
							IXGBE_GSSR_MAC_CSR_SM);
		if (ret_val)
			return IXGBE_ERR_SWFW_SYNC;

		if (hw->eeprom.ops.read(hw, ++data_offset, &data_value))
			goto setup_sfp_err;
		while (data_value != 0xffff) {
			IXGBE_WRITE_REG(hw, IXGBE_CORECTL, data_value);
			IXGBE_WRITE_FLUSH(hw);
			if (hw->eeprom.ops.read(hw, ++data_offset, &data_value))
				goto setup_sfp_err;
		}

		/* Release the semaphore */
		hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_MAC_CSR_SM);
		/*
		 * Delay obtaining semaphore again to allow FW access,
		 * semaphore_delay is in ms usleep_range needs us.
		 */
		usleep_range(hw->eeprom.semaphore_delay * 1000,
			     hw->eeprom.semaphore_delay * 2000);

		/* Restart DSP and set SFI mode */
		ret_val = hw->mac.ops.prot_autoc_write(hw,
			hw->mac.orig_autoc | IXGBE_AUTOC_LMS_10G_SERIAL,
			false);

		if (ret_val) {
			hw_dbg(hw, " sfp module setup not complete\n");
			return IXGBE_ERR_SFP_SETUP_NOT_COMPLETE;
		}
	}

	return 0;

setup_sfp_err:
	/* Release the semaphore */
	hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_MAC_CSR_SM);
	/* Delay obtaining semaphore again to allow FW access,
	 * semaphore_delay is in ms usleep_range needs us.
	 */
	usleep_range(hw->eeprom.semaphore_delay * 1000,
		     hw->eeprom.semaphore_delay * 2000);
	hw_err(hw, "eeprom read at offset %d failed\n", data_offset);
	return IXGBE_ERR_SFP_SETUP_NOT_COMPLETE;
}

/**
 *  prot_autoc_read_82599 - Hides MAC differences needed for AUTOC read
 *  @hw: pointer to hardware structure
 *  @locked: Return the if we locked for this read.
 *  @reg_val: Value we read from AUTOC
 *
 *  For this part (82599) we need to wrap read-modify-writes with a possible
 *  FW/SW lock.  It is assumed this lock will be freed with the next
 *  prot_autoc_write_82599().  Note, that locked can only be true in cases
 *  where this function doesn't return an error.
 **/
static s32 prot_autoc_read_82599(struct ixgbe_hw *hw, bool *locked,
				 u32 *reg_val)
{
	s32 ret_val;

	*locked = false;
	/* If LESM is on then we need to hold the SW/FW semaphore. */
	if (ixgbe_verify_lesm_fw_enabled_82599(hw)) {
		ret_val = hw->mac.ops.acquire_swfw_sync(hw,
					IXGBE_GSSR_MAC_CSR_SM);
		if (ret_val)
			return IXGBE_ERR_SWFW_SYNC;

		*locked = true;
	}

	*reg_val = IXGBE_READ_REG(hw, IXGBE_AUTOC);
	return 0;
}

/**
 * prot_autoc_write_82599 - Hides MAC differences needed for AUTOC write
 * @hw: pointer to hardware structure
 * @reg_val: value to write to AUTOC
 * @locked: bool to indicate whether the SW/FW lock was already taken by
 *	     previous proc_autoc_read_82599.
 *
 * This part (82599) may need to hold a the SW/FW lock around all writes to
 * AUTOC. Likewise after a write we need to do a pipeline reset.
 **/
static s32 prot_autoc_write_82599(struct ixgbe_hw *hw, u32 autoc, bool locked)
{
	s32 ret_val = 0;

	/* Blocked by MNG FW so bail */
	if (ixgbe_check_reset_blocked(hw))
		goto out;

	/* We only need to get the lock if:
	 *  - We didn't do it already (in the read part of a read-modify-write)
	 *  - LESM is enabled.
	 */
	if (!locked && ixgbe_verify_lesm_fw_enabled_82599(hw)) {
		ret_val = hw->mac.ops.acquire_swfw_sync(hw,
					IXGBE_GSSR_MAC_CSR_SM);
		if (ret_val)
			return IXGBE_ERR_SWFW_SYNC;

		locked = true;
	}

	IXGBE_WRITE_REG(hw, IXGBE_AUTOC, autoc);
	ret_val = ixgbe_reset_pipeline_82599(hw);

out:
	/* Free the SW/FW semaphore as we either grabbed it here or
	 * already had it when this function was called.
	 */
	if (locked)
		hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_MAC_CSR_SM);

	return ret_val;
}

static s32 ixgbe_get_invariants_82599(struct ixgbe_hw *hw)
{
	struct ixgbe_mac_info *mac = &hw->mac;

	ixgbe_init_mac_link_ops_82599(hw);

	mac->mcft_size = IXGBE_82599_MC_TBL_SIZE;
	mac->vft_size = IXGBE_82599_VFT_TBL_SIZE;
	mac->num_rar_entries = IXGBE_82599_RAR_ENTRIES;
	mac->rx_pb_size = IXGBE_82599_RX_PB_SIZE;
	mac->max_rx_queues = IXGBE_82599_MAX_RX_QUEUES;
	mac->max_tx_queues = IXGBE_82599_MAX_TX_QUEUES;
	mac->max_msix_vectors = ixgbe_get_pcie_msix_count_generic(hw);

	return 0;
}

/**
 *  ixgbe_init_phy_ops_82599 - PHY/SFP specific init
 *  @hw: pointer to hardware structure
 *
 *  Initialize any function pointers that were not able to be
 *  set during get_invariants because the PHY/SFP type was
 *  not known.  Perform the SFP init if necessary.
 *
 **/
static s32 ixgbe_init_phy_ops_82599(struct ixgbe_hw *hw)
{
	struct ixgbe_mac_info *mac = &hw->mac;
	struct ixgbe_phy_info *phy = &hw->phy;
	s32 ret_val;
	u32 esdp;

	if (hw->device_id == IXGBE_DEV_ID_82599_QSFP_SF_QP) {
		/* Store flag indicating I2C bus access control unit. */
		hw->phy.qsfp_shared_i2c_bus = true;

		/* Initialize access to QSFP+ I2C bus */
		esdp = IXGBE_READ_REG(hw, IXGBE_ESDP);
		esdp |= IXGBE_ESDP_SDP0_DIR;
		esdp &= ~IXGBE_ESDP_SDP1_DIR;
		esdp &= ~IXGBE_ESDP_SDP0;
		esdp &= ~IXGBE_ESDP_SDP0_NATIVE;
		esdp &= ~IXGBE_ESDP_SDP1_NATIVE;
		IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp);
		IXGBE_WRITE_FLUSH(hw);

		phy->ops.read_i2c_byte = &ixgbe_read_i2c_byte_82599;
		phy->ops.write_i2c_byte = &ixgbe_write_i2c_byte_82599;
	}

	/* Identify the PHY or SFP module */
	ret_val = phy->ops.identify(hw);

	/* Setup function pointers based on detected SFP module and speeds */
	ixgbe_init_mac_link_ops_82599(hw);

	/* If copper media, overwrite with copper function pointers */
	if (mac->ops.get_media_type(hw) == ixgbe_media_type_copper) {
		mac->ops.setup_link = &ixgbe_setup_copper_link_82599;
		mac->ops.get_link_capabilities =
			&ixgbe_get_copper_link_capabilities_generic;
	}

	/* Set necessary function pointers based on phy type */
	switch (hw->phy.type) {
	case ixgbe_phy_tn:
		phy->ops.check_link = &ixgbe_check_phy_link_tnx;
		phy->ops.setup_link = &ixgbe_setup_phy_link_tnx;
		phy->ops.get_firmware_version =
			     &ixgbe_get_phy_firmware_version_tnx;
		break;
	default:
		break;
	}

	return ret_val;
}

/**
 *  ixgbe_get_link_capabilities_82599 - Determines link capabilities
 *  @hw: pointer to hardware structure
 *  @speed: pointer to link speed
 *  @autoneg: true when autoneg or autotry is enabled
 *
 *  Determines the link capabilities by reading the AUTOC register.
 **/
static s32 ixgbe_get_link_capabilities_82599(struct ixgbe_hw *hw,
					     ixgbe_link_speed *speed,
					     bool *autoneg)
{
	u32 autoc = 0;

	/* Determine 1G link capabilities off of SFP+ type */
	if (hw->phy.sfp_type == ixgbe_sfp_type_1g_cu_core0 ||
	    hw->phy.sfp_type == ixgbe_sfp_type_1g_cu_core1 ||
	    hw->phy.sfp_type == ixgbe_sfp_type_1g_lx_core0 ||
	    hw->phy.sfp_type == ixgbe_sfp_type_1g_lx_core1 ||
	    hw->phy.sfp_type == ixgbe_sfp_type_1g_sx_core0 ||
	    hw->phy.sfp_type == ixgbe_sfp_type_1g_sx_core1) {
		*speed = IXGBE_LINK_SPEED_1GB_FULL;
		*autoneg = true;
		return 0;
	}

	/*
	 * Determine link capabilities based on the stored value of AUTOC,
	 * which represents EEPROM defaults.  If AUTOC value has not been
	 * stored, use the current register value.
	 */
	if (hw->mac.orig_link_settings_stored)
		autoc = hw->mac.orig_autoc;
	else
		autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC);

	switch (autoc & IXGBE_AUTOC_LMS_MASK) {
	case IXGBE_AUTOC_LMS_1G_LINK_NO_AN:
		*speed = IXGBE_LINK_SPEED_1GB_FULL;
		*autoneg = false;
		break;

	case IXGBE_AUTOC_LMS_10G_LINK_NO_AN:
		*speed = IXGBE_LINK_SPEED_10GB_FULL;
		*autoneg = false;
		break;

	case IXGBE_AUTOC_LMS_1G_AN:
		*speed = IXGBE_LINK_SPEED_1GB_FULL;
		*autoneg = true;
		break;

	case IXGBE_AUTOC_LMS_10G_SERIAL:
		*speed = IXGBE_LINK_SPEED_10GB_FULL;
		*autoneg = false;
		break;

	case IXGBE_AUTOC_LMS_KX4_KX_KR:
	case IXGBE_AUTOC_LMS_KX4_KX_KR_1G_AN:
		*speed = IXGBE_LINK_SPEED_UNKNOWN;
		if (autoc & IXGBE_AUTOC_KR_SUPP)
			*speed |= IXGBE_LINK_SPEED_10GB_FULL;
		if (autoc & IXGBE_AUTOC_KX4_SUPP)
			*speed |= IXGBE_LINK_SPEED_10GB_FULL;
		if (autoc & IXGBE_AUTOC_KX_SUPP)
			*speed |= IXGBE_LINK_SPEED_1GB_FULL;
		*autoneg = true;
		break;

	case IXGBE_AUTOC_LMS_KX4_KX_KR_SGMII:
		*speed = IXGBE_LINK_SPEED_100_FULL;
		if (autoc & IXGBE_AUTOC_KR_SUPP)
			*speed |= IXGBE_LINK_SPEED_10GB_FULL;
		if (autoc & IXGBE_AUTOC_KX4_SUPP)
			*speed |= IXGBE_LINK_SPEED_10GB_FULL;
		if (autoc & IXGBE_AUTOC_KX_SUPP)
			*speed |= IXGBE_LINK_SPEED_1GB_FULL;
		*autoneg = true;
		break;

	case IXGBE_AUTOC_LMS_SGMII_1G_100M:
		*speed = IXGBE_LINK_SPEED_1GB_FULL | IXGBE_LINK_SPEED_100_FULL;
		*autoneg = false;
		break;

	default:
		return IXGBE_ERR_LINK_SETUP;
	}

	if (hw->phy.multispeed_fiber) {
		*speed |= IXGBE_LINK_SPEED_10GB_FULL |
			  IXGBE_LINK_SPEED_1GB_FULL;

		/* QSFP must not enable auto-negotiation */
		if (hw->phy.media_type == ixgbe_media_type_fiber_qsfp)
			*autoneg = false;
		else
			*autoneg = true;
	}

	return 0;
}

/**
 *  ixgbe_get_media_type_82599 - Get media type
 *  @hw: pointer to hardware structure
 *
 *  Returns the media type (fiber, copper, backplane)
 **/
static enum ixgbe_media_type ixgbe_get_media_type_82599(struct ixgbe_hw *hw)
{
	/* Detect if there is a copper PHY attached. */
	switch (hw->phy.type) {
	case ixgbe_phy_cu_unknown:
	case ixgbe_phy_tn:
		return ixgbe_media_type_copper;

	default:
		break;
	}

	switch (hw->device_id) {
	case IXGBE_DEV_ID_82599_KX4:
	case IXGBE_DEV_ID_82599_KX4_MEZZ:
	case IXGBE_DEV_ID_82599_COMBO_BACKPLANE:
	case IXGBE_DEV_ID_82599_KR:
	case IXGBE_DEV_ID_82599_BACKPLANE_FCOE:
	case IXGBE_DEV_ID_82599_XAUI_LOM:
		/* Default device ID is mezzanine card KX/KX4 */
		return ixgbe_media_type_backplane;

	case IXGBE_DEV_ID_82599_SFP:
	case IXGBE_DEV_ID_82599_SFP_FCOE:
	case IXGBE_DEV_ID_82599_SFP_EM:
	case IXGBE_DEV_ID_82599_SFP_SF2:
	case IXGBE_DEV_ID_82599_SFP_SF_QP:
	case IXGBE_DEV_ID_82599EN_SFP:
		return ixgbe_media_type_fiber;

	case IXGBE_DEV_ID_82599_CX4:
		return ixgbe_media_type_cx4;

	case IXGBE_DEV_ID_82599_T3_LOM:
		return ixgbe_media_type_copper;

	case IXGBE_DEV_ID_82599_LS:
		return ixgbe_media_type_fiber_lco;

	case IXGBE_DEV_ID_82599_QSFP_SF_QP:
		return ixgbe_media_type_fiber_qsfp;

	default:
		return ixgbe_media_type_unknown;
	}
}

/**
 * ixgbe_stop_mac_link_on_d3_82599 - Disables link on D3
 * @hw: pointer to hardware structure
 *
 * Disables link, should be called during D3 power down sequence.
 *
 **/
static void ixgbe_stop_mac_link_on_d3_82599(struct ixgbe_hw *hw)
{
	u32 autoc2_reg;
	u16 ee_ctrl_2 = 0;

	hw->eeprom.ops.read(hw, IXGBE_EEPROM_CTRL_2, &ee_ctrl_2);

	if (!ixgbe_mng_present(hw) && !hw->wol_enabled &&
	    ee_ctrl_2 & IXGBE_EEPROM_CCD_BIT) {
		autoc2_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC2);
		autoc2_reg |= IXGBE_AUTOC2_LINK_DISABLE_ON_D3_MASK;
		IXGBE_WRITE_REG(hw, IXGBE_AUTOC2, autoc2_reg);
	}
}

/**
 *  ixgbe_start_mac_link_82599 - Setup MAC link settings
 *  @hw: pointer to hardware structure
 *  @autoneg_wait_to_complete: true when waiting for completion is needed
 *
 *  Configures link settings based on values in the ixgbe_hw struct.
 *  Restarts the link.  Performs autonegotiation if needed.
 **/
static s32 ixgbe_start_mac_link_82599(struct ixgbe_hw *hw,
			       bool autoneg_wait_to_complete)
{
	u32 autoc_reg;
	u32 links_reg;
	u32 i;
	s32 status = 0;
	bool got_lock = false;

	if (ixgbe_verify_lesm_fw_enabled_82599(hw)) {
		status = hw->mac.ops.acquire_swfw_sync(hw,
						IXGBE_GSSR_MAC_CSR_SM);
		if (status)
			return status;

		got_lock = true;
	}

	/* Restart link */
	ixgbe_reset_pipeline_82599(hw);

	if (got_lock)
		hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_MAC_CSR_SM);

	/* Only poll for autoneg to complete if specified to do so */
	if (autoneg_wait_to_complete) {
		autoc_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC);
		if ((autoc_reg & IXGBE_AUTOC_LMS_MASK) ==
		     IXGBE_AUTOC_LMS_KX4_KX_KR ||
		    (autoc_reg & IXGBE_AUTOC_LMS_MASK) ==
		     IXGBE_AUTOC_LMS_KX4_KX_KR_1G_AN ||
		    (autoc_reg & IXGBE_AUTOC_LMS_MASK) ==
		     IXGBE_AUTOC_LMS_KX4_KX_KR_SGMII) {
			links_reg = 0; /* Just in case Autoneg time = 0 */
			for (i = 0; i < IXGBE_AUTO_NEG_TIME; i++) {
				links_reg = IXGBE_READ_REG(hw, IXGBE_LINKS);
				if (links_reg & IXGBE_LINKS_KX_AN_COMP)
					break;
				msleep(100);
			}
			if (!(links_reg & IXGBE_LINKS_KX_AN_COMP)) {
				status = IXGBE_ERR_AUTONEG_NOT_COMPLETE;
				hw_dbg(hw, "Autoneg did not complete.\n");
			}
		}
	}

	/* Add delay to filter out noises during initial link setup */
	msleep(50);

	return status;
}

/**
 *  ixgbe_disable_tx_laser_multispeed_fiber - Disable Tx laser
 *  @hw: pointer to hardware structure
 *
 *  The base drivers may require better control over SFP+ module
 *  PHY states.  This includes selectively shutting down the Tx
 *  laser on the PHY, effectively halting physical link.
 **/
static void ixgbe_disable_tx_laser_multispeed_fiber(struct ixgbe_hw *hw)
{
	u32 esdp_reg = IXGBE_READ_REG(hw, IXGBE_ESDP);

	/* Blocked by MNG FW so bail */
	if (ixgbe_check_reset_blocked(hw))
		return;

	/* Disable tx laser; allow 100us to go dark per spec */
	esdp_reg |= IXGBE_ESDP_SDP3;
	IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp_reg);
	IXGBE_WRITE_FLUSH(hw);
	udelay(100);
}

/**
 *  ixgbe_enable_tx_laser_multispeed_fiber - Enable Tx laser
 *  @hw: pointer to hardware structure
 *
 *  The base drivers may require better control over SFP+ module
 *  PHY states.  This includes selectively turning on the Tx
 *  laser on the PHY, effectively starting physical link.
 **/
static void ixgbe_enable_tx_laser_multispeed_fiber(struct ixgbe_hw *hw)
{
	u32 esdp_reg = IXGBE_READ_REG(hw, IXGBE_ESDP);

	/* Enable tx laser; allow 100ms to light up */
	esdp_reg &= ~IXGBE_ESDP_SDP3;
	IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp_reg);
	IXGBE_WRITE_FLUSH(hw);
	msleep(100);
}

/**
 *  ixgbe_flap_tx_laser_multispeed_fiber - Flap Tx laser
 *  @hw: pointer to hardware structure
 *
 *  When the driver changes the link speeds that it can support,
 *  it sets autotry_restart to true to indicate that we need to
 *  initiate a new autotry session with the link partner.  To do
 *  so, we set the speed then disable and re-enable the tx laser, to
 *  alert the link partner that it also needs to restart autotry on its
 *  end.  This is consistent with true clause 37 autoneg, which also
 *  involves a loss of signal.
 **/
static void ixgbe_flap_tx_laser_multispeed_fiber(struct ixgbe_hw *hw)
{
	/* Blocked by MNG FW so bail */
	if (ixgbe_check_reset_blocked(hw))
		return;

	if (hw->mac.autotry_restart) {
		ixgbe_disable_tx_laser_multispeed_fiber(hw);
		ixgbe_enable_tx_laser_multispeed_fiber(hw);
		hw->mac.autotry_restart = false;
	}
}

/**
 * ixgbe_set_hard_rate_select_speed - Set module link speed
 * @hw: pointer to hardware structure
 * @speed: link speed to set
 *
 * Set module link speed via RS0/RS1 rate select pins.
 */
static void
ixgbe_set_hard_rate_select_speed(struct ixgbe_hw *hw, ixgbe_link_speed speed)
{
	u32 esdp_reg = IXGBE_READ_REG(hw, IXGBE_ESDP);

	switch (speed) {
	case IXGBE_LINK_SPEED_10GB_FULL:
		esdp_reg |= (IXGBE_ESDP_SDP5_DIR | IXGBE_ESDP_SDP5);
		break;
	case IXGBE_LINK_SPEED_1GB_FULL:
		esdp_reg &= ~IXGBE_ESDP_SDP5;
		esdp_reg |= IXGBE_ESDP_SDP5_DIR;
		break;
	default:
		hw_dbg(hw, "Invalid fixed module speed\n");
		return;
	}

	IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp_reg);
	IXGBE_WRITE_FLUSH(hw);
}

/**
 *  ixgbe_setup_mac_link_smartspeed - Set MAC link speed using SmartSpeed
 *  @hw: pointer to hardware structure
 *  @speed: new link speed
 *  @autoneg_wait_to_complete: true when waiting for completion is needed
 *
 *  Implements the Intel SmartSpeed algorithm.
 **/
static s32 ixgbe_setup_mac_link_smartspeed(struct ixgbe_hw *hw,
				     ixgbe_link_speed speed,
				     bool autoneg_wait_to_complete)
{
	s32 status = 0;
	ixgbe_link_speed link_speed = IXGBE_LINK_SPEED_UNKNOWN;
	s32 i, j;
	bool link_up = false;
	u32 autoc_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC);

	 /* Set autoneg_advertised value based on input link speed */
	hw->phy.autoneg_advertised = 0;

	if (speed & IXGBE_LINK_SPEED_10GB_FULL)
		hw->phy.autoneg_advertised |= IXGBE_LINK_SPEED_10GB_FULL;

	if (speed & IXGBE_LINK_SPEED_1GB_FULL)
		hw->phy.autoneg_advertised |= IXGBE_LINK_SPEED_1GB_FULL;

	if (speed & IXGBE_LINK_SPEED_100_FULL)
		hw->phy.autoneg_advertised |= IXGBE_LINK_SPEED_100_FULL;

	/*
	 * Implement Intel SmartSpeed algorithm.  SmartSpeed will reduce the
	 * autoneg advertisement if link is unable to be established at the
	 * highest negotiated rate.  This can sometimes happen due to integrity
	 * issues with the physical media connection.
	 */

	/* First, try to get link with full advertisement */
	hw->phy.smart_speed_active = false;
	for (j = 0; j < IXGBE_SMARTSPEED_MAX_RETRIES; j++) {
		status = ixgbe_setup_mac_link_82599(hw, speed,
						    autoneg_wait_to_complete);
		if (status != 0)
			goto out;

		/*
		 * Wait for the controller to acquire link.  Per IEEE 802.3ap,
		 * Section 73.10.2, we may have to wait up to 500ms if KR is
		 * attempted, or 200ms if KX/KX4/BX/BX4 is attempted, per
		 * Table 9 in the AN MAS.
		 */
		for (i = 0; i < 5; i++) {
			mdelay(100);

			/* If we have link, just jump out */
			status = hw->mac.ops.check_link(hw, &link_speed,
							&link_up, false);
			if (status != 0)
				goto out;

			if (link_up)
				goto out;
		}
	}

	/*
	 * We didn't get link.  If we advertised KR plus one of KX4/KX
	 * (or BX4/BX), then disable KR and try again.
	 */
	if (((autoc_reg & IXGBE_AUTOC_KR_SUPP) == 0) ||
	    ((autoc_reg & IXGBE_AUTOC_KX4_KX_SUPP_MASK) == 0))
		goto out;

	/* Turn SmartSpeed on to disable KR support */
	hw->phy.smart_speed_active = true;
	status = ixgbe_setup_mac_link_82599(hw, speed,
					    autoneg_wait_to_complete);
	if (status != 0)
		goto out;

	/*
	 * Wait for the controller to acquire link.  600ms will allow for
	 * the AN link_fail_inhibit_timer as well for multiple cycles of
	 * parallel detect, both 10g and 1g. This allows for the maximum
	 * connect attempts as defined in the AN MAS table 73-7.
	 */
	for (i = 0; i < 6; i++) {
		mdelay(100);

		/* If we have link, just jump out */
		status = hw->mac.ops.check_link(hw, &link_speed,
						&link_up, false);
		if (status != 0)
			goto out;

		if (link_up)
			goto out;
	}

	/* We didn't get link.  Turn SmartSpeed back off. */
	hw->phy.smart_speed_active = false;
	status = ixgbe_setup_mac_link_82599(hw, speed,
					    autoneg_wait_to_complete);

out:
	if (link_up && (link_speed == IXGBE_LINK_SPEED_1GB_FULL))
		hw_dbg(hw, "Smartspeed has downgraded the link speed from the maximum advertised\n");
	return status;
}

/**
 *  ixgbe_setup_mac_link_82599 - Set MAC link speed
 *  @hw: pointer to hardware structure
 *  @speed: new link speed
 *  @autoneg_wait_to_complete: true when waiting for completion is needed
 *
 *  Set the link speed in the AUTOC register and restarts link.
 **/
static s32 ixgbe_setup_mac_link_82599(struct ixgbe_hw *hw,
				      ixgbe_link_speed speed,
				      bool autoneg_wait_to_complete)
{
	bool autoneg = false;
	s32 status;
	u32 pma_pmd_1g, link_mode, links_reg, i;
	u32 autoc2 = IXGBE_READ_REG(hw, IXGBE_AUTOC2);
	u32 pma_pmd_10g_serial = autoc2 & IXGBE_AUTOC2_10G_SERIAL_PMA_PMD_MASK;
	ixgbe_link_speed link_capabilities = IXGBE_LINK_SPEED_UNKNOWN;

	/* holds the value of AUTOC register at this current point in time */
	u32 current_autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC);
	/* holds the cached value of AUTOC register */
	u32 orig_autoc = 0;
	/* temporary variable used for comparison purposes */
	u32 autoc = current_autoc;

	/* Check to see if speed passed in is supported. */
	status = hw->mac.ops.get_link_capabilities(hw, &link_capabilities,
						   &autoneg);
	if (status)
		return status;

	speed &= link_capabilities;

	if (speed == IXGBE_LINK_SPEED_UNKNOWN)
		return IXGBE_ERR_LINK_SETUP;

	/* Use stored value (EEPROM defaults) of AUTOC to find KR/KX4 support*/
	if (hw->mac.orig_link_settings_stored)
		orig_autoc = hw->mac.orig_autoc;
	else
		orig_autoc = autoc;

	link_mode = autoc & IXGBE_AUTOC_LMS_MASK;
	pma_pmd_1g = autoc & IXGBE_AUTOC_1G_PMA_PMD_MASK;

	if (link_mode == IXGBE_AUTOC_LMS_KX4_KX_KR ||
	    link_mode == IXGBE_AUTOC_LMS_KX4_KX_KR_1G_AN ||
	    link_mode == IXGBE_AUTOC_LMS_KX4_KX_KR_SGMII) {
		/* Set KX4/KX/KR support according to speed requested */
		autoc &= ~(IXGBE_AUTOC_KX4_KX_SUPP_MASK | IXGBE_AUTOC_KR_SUPP);
		if (speed & IXGBE_LINK_SPEED_10GB_FULL) {
			if (orig_autoc & IXGBE_AUTOC_KX4_SUPP)
				autoc |= IXGBE_AUTOC_KX4_SUPP;
			if ((orig_autoc & IXGBE_AUTOC_KR_SUPP) &&
			    (hw->phy.smart_speed_active == false))
				autoc |= IXGBE_AUTOC_KR_SUPP;
		}
		if (speed & IXGBE_LINK_SPEED_1GB_FULL)
			autoc |= IXGBE_AUTOC_KX_SUPP;
	} else if ((pma_pmd_1g == IXGBE_AUTOC_1G_SFI) &&
		   (link_mode == IXGBE_AUTOC_LMS_1G_LINK_NO_AN ||
		    link_mode == IXGBE_AUTOC_LMS_1G_AN)) {
		/* Switch from 1G SFI to 10G SFI if requested */
		if ((speed == IXGBE_LINK_SPEED_10GB_FULL) &&
		    (pma_pmd_10g_serial == IXGBE_AUTOC2_10G_SFI)) {
			autoc &= ~IXGBE_AUTOC_LMS_MASK;
			autoc |= IXGBE_AUTOC_LMS_10G_SERIAL;
		}
	} else if ((pma_pmd_10g_serial == IXGBE_AUTOC2_10G_SFI) &&
		   (link_mode == IXGBE_AUTOC_LMS_10G_SERIAL)) {
		/* Switch from 10G SFI to 1G SFI if requested */
		if ((speed == IXGBE_LINK_SPEED_1GB_FULL) &&
		    (pma_pmd_1g == IXGBE_AUTOC_1G_SFI)) {
			autoc &= ~IXGBE_AUTOC_LMS_MASK;
			if (autoneg)
				autoc |= IXGBE_AUTOC_LMS_1G_AN;
			else
				autoc |= IXGBE_AUTOC_LMS_1G_LINK_NO_AN;
		}
	}

	if (autoc != current_autoc) {
		/* Restart link */
		status = hw->mac.ops.prot_autoc_write(hw, autoc, false);
		if (status)
			return status;

		/* Only poll for autoneg to complete if specified to do so */
		if (autoneg_wait_to_complete) {
			if (link_mode == IXGBE_AUTOC_LMS_KX4_KX_KR ||
			    link_mode == IXGBE_AUTOC_LMS_KX4_KX_KR_1G_AN ||
			    link_mode == IXGBE_AUTOC_LMS_KX4_KX_KR_SGMII) {
				links_reg = 0; /*Just in case Autoneg time=0*/
				for (i = 0; i < IXGBE_AUTO_NEG_TIME; i++) {
					links_reg =
					       IXGBE_READ_REG(hw, IXGBE_LINKS);
					if (links_reg & IXGBE_LINKS_KX_AN_COMP)
						break;
					msleep(100);
				}
				if (!(links_reg & IXGBE_LINKS_KX_AN_COMP)) {
					status =
						IXGBE_ERR_AUTONEG_NOT_COMPLETE;
					hw_dbg(hw, "Autoneg did not complete.\n");
				}
			}
		}

		/* Add delay to filter out noises during initial link setup */
		msleep(50);
	}

	return status;
}

/**
 *  ixgbe_setup_copper_link_82599 - Set the PHY autoneg advertised field
 *  @hw: pointer to hardware structure
 *  @speed: new link speed
 *  @autoneg_wait_to_complete: true if waiting is needed to complete
 *
 *  Restarts link on PHY and MAC based on settings passed in.
 **/
static s32 ixgbe_setup_copper_link_82599(struct ixgbe_hw *hw,
					 ixgbe_link_speed speed,
					 bool autoneg_wait_to_complete)
{
	s32 status;

	/* Setup the PHY according to input speed */
	status = hw->phy.ops.setup_link_speed(hw, speed,
					      autoneg_wait_to_complete);
	/* Set up MAC */
	ixgbe_start_mac_link_82599(hw, autoneg_wait_to_complete);

	return status;
}

/**
 *  ixgbe_reset_hw_82599 - Perform hardware reset
 *  @hw: pointer to hardware structure
 *
 *  Resets the hardware by resetting the transmit and receive units, masks
 *  and clears all interrupts, perform a PHY reset, and perform a link (MAC)
 *  reset.
 **/
static s32 ixgbe_reset_hw_82599(struct ixgbe_hw *hw)
{
	ixgbe_link_speed link_speed;
	s32 status;
	u32 ctrl, i, autoc, autoc2;
	u32 curr_lms;
	bool link_up = false;

	/* Call adapter stop to disable tx/rx and clear interrupts */
	status = hw->mac.ops.stop_adapter(hw);
	if (status)
		return status;

	/* flush pending Tx transactions */
	ixgbe_clear_tx_pending(hw);

	/* PHY ops must be identified and initialized prior to reset */

	/* Identify PHY and related function pointers */
	status = hw->phy.ops.init(hw);

	if (status == IXGBE_ERR_SFP_NOT_SUPPORTED)
		return status;

	/* Setup SFP module if there is one present. */
	if (hw->phy.sfp_setup_needed) {
		status = hw->mac.ops.setup_sfp(hw);
		hw->phy.sfp_setup_needed = false;
	}

	if (status == IXGBE_ERR_SFP_NOT_SUPPORTED)
		return status;

	/* Reset PHY */
	if (hw->phy.reset_disable == false && hw->phy.ops.reset != NULL)
		hw->phy.ops.reset(hw);

	/* remember AUTOC from before we reset */
	curr_lms = IXGBE_READ_REG(hw, IXGBE_AUTOC) & IXGBE_AUTOC_LMS_MASK;

mac_reset_top:
	/*
	 * Issue global reset to the MAC. Needs to be SW reset if link is up.
	 * If link reset is used when link is up, it might reset the PHY when
	 * mng is using it.  If link is down or the flag to force full link
	 * reset is set, then perform link reset.
	 */
	ctrl = IXGBE_CTRL_LNK_RST;
	if (!hw->force_full_reset) {
		hw->mac.ops.check_link(hw, &link_speed, &link_up, false);
		if (link_up)
			ctrl = IXGBE_CTRL_RST;
	}

	ctrl |= IXGBE_READ_REG(hw, IXGBE_CTRL);
	IXGBE_WRITE_REG(hw, IXGBE_CTRL, ctrl);
	IXGBE_WRITE_FLUSH(hw);

	/* Poll for reset bit to self-clear indicating reset is complete */
	for (i = 0; i < 10; i++) {
		udelay(1);
		ctrl = IXGBE_READ_REG(hw, IXGBE_CTRL);
		if (!(ctrl & IXGBE_CTRL_RST_MASK))
			break;
	}

	if (ctrl & IXGBE_CTRL_RST_MASK) {
		status = IXGBE_ERR_RESET_FAILED;
		hw_dbg(hw, "Reset polling failed to complete.\n");
	}

	msleep(50);

	/*
	 * Double resets are required for recovery from certain error
	 * conditions.  Between resets, it is necessary to stall to allow time
	 * for any pending HW events to complete.
	 */
	if (hw->mac.flags & IXGBE_FLAGS_DOUBLE_RESET_REQUIRED) {
		hw->mac.flags &= ~IXGBE_FLAGS_DOUBLE_RESET_REQUIRED;
		goto mac_reset_top;
	}

	/*
	 * Store the original AUTOC/AUTOC2 values if they have not been
	 * stored off yet.  Otherwise restore the stored original
	 * values since the reset operation sets back to defaults.
	 */
	autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC);
	autoc2 = IXGBE_READ_REG(hw, IXGBE_AUTOC2);

	/* Enable link if disabled in NVM */
	if (autoc2 & IXGBE_AUTOC2_LINK_DISABLE_MASK) {
		autoc2 &= ~IXGBE_AUTOC2_LINK_DISABLE_MASK;
		IXGBE_WRITE_REG(hw, IXGBE_AUTOC2, autoc2);
		IXGBE_WRITE_FLUSH(hw);
	}

	if (hw->mac.orig_link_settings_stored == false) {
		hw->mac.orig_autoc = autoc;
		hw->mac.orig_autoc2 = autoc2;
		hw->mac.orig_link_settings_stored = true;
	} else {

		/* If MNG FW is running on a multi-speed device that
		 * doesn't autoneg with out driver support we need to
		 * leave LMS in the state it was before we MAC reset.
		 * Likewise if we support WoL we don't want change the
		 * LMS state either.
		 */
		if ((hw->phy.multispeed_fiber && ixgbe_mng_enabled(hw)) ||
		    hw->wol_enabled)
			hw->mac.orig_autoc =
				(hw->mac.orig_autoc & ~IXGBE_AUTOC_LMS_MASK) |
				curr_lms;

		if (autoc != hw->mac.orig_autoc) {
			status = hw->mac.ops.prot_autoc_write(hw,
							hw->mac.orig_autoc,
							false);
			if (status)
				return status;
		}

		if ((autoc2 & IXGBE_AUTOC2_UPPER_MASK) !=
		    (hw->mac.orig_autoc2 & IXGBE_AUTOC2_UPPER_MASK)) {
			autoc2 &= ~IXGBE_AUTOC2_UPPER_MASK;
			autoc2 |= (hw->mac.orig_autoc2 &
				   IXGBE_AUTOC2_UPPER_MASK);
			IXGBE_WRITE_REG(hw, IXGBE_AUTOC2, autoc2);
		}
	}

	/* Store the permanent mac address */
	hw->mac.ops.get_mac_addr(hw, hw->mac.perm_addr);

	/*
	 * Store MAC address from RAR0, clear receive address registers, and
	 * clear the multicast table.  Also reset num_rar_entries to 128,
	 * since we modify this value when programming the SAN MAC address.
	 */
	hw->mac.num_rar_entries = 128;
	hw->mac.ops.init_rx_addrs(hw);

	/* Store the permanent SAN mac address */
	hw->mac.ops.get_san_mac_addr(hw, hw->mac.san_addr);

	/* Add the SAN MAC address to the RAR only if it's a valid address */
	if (is_valid_ether_addr(hw->mac.san_addr)) {
		hw->mac.ops.set_rar(hw, hw->mac.num_rar_entries - 1,
				    hw->mac.san_addr, 0, IXGBE_RAH_AV);

		/* Save the SAN MAC RAR index */
		hw->mac.san_mac_rar_index = hw->mac.num_rar_entries - 1;

		/* Reserve the last RAR for the SAN MAC address */
		hw->mac.num_rar_entries--;
	}

	/* Store the alternative WWNN/WWPN prefix */
	hw->mac.ops.get_wwn_prefix(hw, &hw->mac.wwnn_prefix,
				       &hw->mac.wwpn_prefix);

	return status;
}

/**
 * ixgbe_fdir_check_cmd_complete - poll to check whether FDIRCMD is complete
 * @hw: pointer to hardware structure
 * @fdircmd: current value of FDIRCMD register
 */
static s32 ixgbe_fdir_check_cmd_complete(struct ixgbe_hw *hw, u32 *fdircmd)
{
	int i;

	for (i = 0; i < IXGBE_FDIRCMD_CMD_POLL; i++) {
		*fdircmd = IXGBE_READ_REG(hw, IXGBE_FDIRCMD);
		if (!(*fdircmd & IXGBE_FDIRCMD_CMD_MASK))
			return 0;
		udelay(10);
	}

	return IXGBE_ERR_FDIR_CMD_INCOMPLETE;
}

/**
 *  ixgbe_reinit_fdir_tables_82599 - Reinitialize Flow Director tables.
 *  @hw: pointer to hardware structure
 **/
s32 ixgbe_reinit_fdir_tables_82599(struct ixgbe_hw *hw)
{
	int i;
	u32 fdirctrl = IXGBE_READ_REG(hw, IXGBE_FDIRCTRL);
	u32 fdircmd;
	s32 err;

	fdirctrl &= ~IXGBE_FDIRCTRL_INIT_DONE;

	/*
	 * Before starting reinitialization process,
	 * FDIRCMD.CMD must be zero.
	 */
	err = ixgbe_fdir_check_cmd_complete(hw, &fdircmd);
	if (err) {
		hw_dbg(hw, "Flow Director previous command did not complete, aborting table re-initialization.\n");
		return err;
	}

	IXGBE_WRITE_REG(hw, IXGBE_FDIRFREE, 0);
	IXGBE_WRITE_FLUSH(hw);
	/*
	 * 82599 adapters flow director init flow cannot be restarted,
	 * Workaround 82599 silicon errata by performing the following steps
	 * before re-writing the FDIRCTRL control register with the same value.
	 * - write 1 to bit 8 of FDIRCMD register &
	 * - write 0 to bit 8 of FDIRCMD register
	 */
	IXGBE_WRITE_REG(hw, IXGBE_FDIRCMD,
			(IXGBE_READ_REG(hw, IXGBE_FDIRCMD) |
			 IXGBE_FDIRCMD_CLEARHT));
	IXGBE_WRITE_FLUSH(hw);
	IXGBE_WRITE_REG(hw, IXGBE_FDIRCMD,
			(IXGBE_READ_REG(hw, IXGBE_FDIRCMD) &
			 ~IXGBE_FDIRCMD_CLEARHT));
	IXGBE_WRITE_FLUSH(hw);
	/*
	 * Clear FDIR Hash register to clear any leftover hashes
	 * waiting to be programmed.
	 */
	IXGBE_WRITE_REG(hw, IXGBE_FDIRHASH, 0x00);
	IXGBE_WRITE_FLUSH(hw);

	IXGBE_WRITE_REG(hw, IXGBE_FDIRCTRL, fdirctrl);
	IXGBE_WRITE_FLUSH(hw);

	/* Poll init-done after we write FDIRCTRL register */
	for (i = 0; i < IXGBE_FDIR_INIT_DONE_POLL; i++) {
		if (IXGBE_READ_REG(hw, IXGBE_FDIRCTRL) &
				   IXGBE_FDIRCTRL_INIT_DONE)
			break;
		usleep_range(1000, 2000);
	}
	if (i >= IXGBE_FDIR_INIT_DONE_POLL) {
		hw_dbg(hw, "Flow Director Signature poll time exceeded!\n");
		return IXGBE_ERR_FDIR_REINIT_FAILED;
	}

	/* Clear FDIR statistics registers (read to clear) */
	IXGBE_READ_REG(hw, IXGBE_FDIRUSTAT);
	IXGBE_READ_REG(hw, IXGBE_FDIRFSTAT);
	IXGBE_READ_REG(hw, IXGBE_FDIRMATCH);
	IXGBE_READ_REG(hw, IXGBE_FDIRMISS);
	IXGBE_READ_REG(hw, IXGBE_FDIRLEN);

	return 0;
}

/**
 *  ixgbe_fdir_enable_82599 - Initialize Flow Director control registers
 *  @hw: pointer to hardware structure
 *  @fdirctrl: value to write to flow director control register
 **/
static void ixgbe_fdir_enable_82599(struct ixgbe_hw *hw, u32 fdirctrl)
{
	int i;

	/* Prime the keys for hashing */
	IXGBE_WRITE_REG(hw, IXGBE_FDIRHKEY, IXGBE_ATR_BUCKET_HASH_KEY);
	IXGBE_WRITE_REG(hw, IXGBE_FDIRSKEY, IXGBE_ATR_SIGNATURE_HASH_KEY);

	/*
	 * Poll init-done after we write the register.  Estimated times:
	 *      10G: PBALLOC = 11b, timing is 60us
	 *       1G: PBALLOC = 11b, timing is 600us
	 *     100M: PBALLOC = 11b, timing is 6ms
	 *
	 *     Multiple these timings by 4 if under full Rx load
	 *
	 * So we'll poll for IXGBE_FDIR_INIT_DONE_POLL times, sleeping for
	 * 1 msec per poll time.  If we're at line rate and drop to 100M, then
	 * this might not finish in our poll time, but we can live with that
	 * for now.
	 */
	IXGBE_WRITE_REG(hw, IXGBE_FDIRCTRL, fdirctrl);
	IXGBE_WRITE_FLUSH(hw);
	for (i = 0; i < IXGBE_FDIR_INIT_DONE_POLL; i++) {
		if (IXGBE_READ_REG(hw, IXGBE_FDIRCTRL) &
				   IXGBE_FDIRCTRL_INIT_DONE)
			break;
		usleep_range(1000, 2000);
	}

	if (i >= IXGBE_FDIR_INIT_DONE_POLL)
		hw_dbg(hw, "Flow Director poll time exceeded!\n");
}

/**
 *  ixgbe_init_fdir_signature_82599 - Initialize Flow Director signature filters
 *  @hw: pointer to hardware structure
 *  @fdirctrl: value to write to flow director control register, initially
 *             contains just the value of the Rx packet buffer allocation
 **/
s32 ixgbe_init_fdir_signature_82599(struct ixgbe_hw *hw, u32 fdirctrl)
{
	/*
	 * Continue setup of fdirctrl register bits:
	 *  Move the flexible bytes to use the ethertype - shift 6 words
	 *  Set the maximum length per hash bucket to 0xA filters
	 *  Send interrupt when 64 filters are left
	 */
	fdirctrl |= (0x6 << IXGBE_FDIRCTRL_FLEX_SHIFT) |
		    (0xA << IXGBE_FDIRCTRL_MAX_LENGTH_SHIFT) |
		    (4 << IXGBE_FDIRCTRL_FULL_THRESH_SHIFT);

	/* write hashes and fdirctrl register, poll for completion */
	ixgbe_fdir_enable_82599(hw, fdirctrl);

	return 0;
}

/**
 *  ixgbe_init_fdir_perfect_82599 - Initialize Flow Director perfect filters
 *  @hw: pointer to hardware structure
 *  @fdirctrl: value to write to flow director control register, initially
 *             contains just the value of the Rx packet buffer allocation
 **/
s32 ixgbe_init_fdir_perfect_82599(struct ixgbe_hw *hw, u32 fdirctrl)
{
	/*
	 * Continue setup of fdirctrl register bits:
	 *  Turn perfect match filtering on
	 *  Initialize the drop queue
	 *  Move the flexible bytes to use the ethertype - shift 6 words
	 *  Set the maximum length per hash bucket to 0xA filters
	 *  Send interrupt when 64 (0x4 * 16) filters are left
	 */
	fdirctrl |= IXGBE_FDIRCTRL_PERFECT_MATCH |
		    (IXGBE_FDIR_DROP_QUEUE << IXGBE_FDIRCTRL_DROP_Q_SHIFT) |
		    (0x6 << IXGBE_FDIRCTRL_FLEX_SHIFT) |
		    (0xA << IXGBE_FDIRCTRL_MAX_LENGTH_SHIFT) |
		    (4 << IXGBE_FDIRCTRL_FULL_THRESH_SHIFT);

	/* write hashes and fdirctrl register, poll for completion */
	ixgbe_fdir_enable_82599(hw, fdirctrl);

	return 0;
}

/*
 * These defines allow us to quickly generate all of the necessary instructions
 * in the function below by simply calling out IXGBE_COMPUTE_SIG_HASH_ITERATION
 * for values 0 through 15
 */
#define IXGBE_ATR_COMMON_HASH_KEY \
		(IXGBE_ATR_BUCKET_HASH_KEY & IXGBE_ATR_SIGNATURE_HASH_KEY)
#define IXGBE_COMPUTE_SIG_HASH_ITERATION(_n) \
do { \
	u32 n = (_n); \
	if (IXGBE_ATR_COMMON_HASH_KEY & (0x01 << n)) \
		common_hash ^= lo_hash_dword >> n; \
	else if (IXGBE_ATR_BUCKET_HASH_KEY & (0x01 << n)) \
		bucket_hash ^= lo_hash_dword >> n; \
	else if (IXGBE_ATR_SIGNATURE_HASH_KEY & (0x01 << n)) \
		sig_hash ^= lo_hash_dword << (16 - n); \
	if (IXGBE_ATR_COMMON_HASH_KEY & (0x01 << (n + 16))) \
		common_hash ^= hi_hash_dword >> n; \
	else if (IXGBE_ATR_BUCKET_HASH_KEY & (0x01 << (n + 16))) \
		bucket_hash ^= hi_hash_dword >> n; \
	else if (IXGBE_ATR_SIGNATURE_HASH_KEY & (0x01 << (n + 16))) \
		sig_hash ^= hi_hash_dword << (16 - n); \
} while (0)

/**
 *  ixgbe_atr_compute_sig_hash_82599 - Compute the signature hash
 *  @stream: input bitstream to compute the hash on
 *
 *  This function is almost identical to the function above but contains
 *  several optomizations such as unwinding all of the loops, letting the
 *  compiler work out all of the conditional ifs since the keys are static
 *  defines, and computing two keys at once since the hashed dword stream
 *  will be the same for both keys.
 **/
static u32 ixgbe_atr_compute_sig_hash_82599(union ixgbe_atr_hash_dword input,
					    union ixgbe_atr_hash_dword common)
{
	u32 hi_hash_dword, lo_hash_dword, flow_vm_vlan;
	u32 sig_hash = 0, bucket_hash = 0, common_hash = 0;

	/* record the flow_vm_vlan bits as they are a key part to the hash */
	flow_vm_vlan = ntohl(input.dword);

	/* generate common hash dword */
	hi_hash_dword = ntohl(common.dword);

	/* low dword is word swapped version of common */
	lo_hash_dword = (hi_hash_dword >> 16) | (hi_hash_dword << 16);

	/* apply flow ID/VM pool/VLAN ID bits to hash words */
	hi_hash_dword ^= flow_vm_vlan ^ (flow_vm_vlan >> 16);

	/* Process bits 0 and 16 */
	IXGBE_COMPUTE_SIG_HASH_ITERATION(0);

	/*
	 * apply flow ID/VM pool/VLAN ID bits to lo hash dword, we had to
	 * delay this because bit 0 of the stream should not be processed
	 * so we do not add the vlan until after bit 0 was processed
	 */
	lo_hash_dword ^= flow_vm_vlan ^ (flow_vm_vlan << 16);

	/* Process remaining 30 bit of the key */
	IXGBE_COMPUTE_SIG_HASH_ITERATION(1);
	IXGBE_COMPUTE_SIG_HASH_ITERATION(2);
	IXGBE_COMPUTE_SIG_HASH_ITERATION(3);
	IXGBE_COMPUTE_SIG_HASH_ITERATION(4);
	IXGBE_COMPUTE_SIG_HASH_ITERATION(5);
	IXGBE_COMPUTE_SIG_HASH_ITERATION(6);
	IXGBE_COMPUTE_SIG_HASH_ITERATION(7);
	IXGBE_COMPUTE_SIG_HASH_ITERATION(8);
	IXGBE_COMPUTE_SIG_HASH_ITERATION(9);
	IXGBE_COMPUTE_SIG_HASH_ITERATION(10);
	IXGBE_COMPUTE_SIG_HASH_ITERATION(11);
	IXGBE_COMPUTE_SIG_HASH_ITERATION(12);
	IXGBE_COMPUTE_SIG_HASH_ITERATION(13);
	IXGBE_COMPUTE_SIG_HASH_ITERATION(14);
	IXGBE_COMPUTE_SIG_HASH_ITERATION(15);

	/* combine common_hash result with signature and bucket hashes */
	bucket_hash ^= common_hash;
	bucket_hash &= IXGBE_ATR_HASH_MASK;

	sig_hash ^= common_hash << 16;
	sig_hash &= IXGBE_ATR_HASH_MASK << 16;

	/* return completed signature hash */
	return sig_hash ^ bucket_hash;
}

/**
 *  ixgbe_atr_add_signature_filter_82599 - Adds a signature hash filter
 *  @hw: pointer to hardware structure
 *  @input: unique input dword
 *  @common: compressed common input dword
 *  @queue: queue index to direct traffic to
 *
 * Note that the tunnel bit in input must not be set when the hardware
 * tunneling support does not exist.
 **/
s32 ixgbe_fdir_add_signature_filter_82599(struct ixgbe_hw *hw,
					  union ixgbe_atr_hash_dword input,
					  union ixgbe_atr_hash_dword common,
					  u8 queue)
{
	u64 fdirhashcmd;
	u8 flow_type;
	bool tunnel;
	u32 fdircmd;

	/*
	 * Get the flow_type in order to program FDIRCMD properly
	 * lowest 2 bits are FDIRCMD.L4TYPE, third lowest bit is FDIRCMD.IPV6
	 */
	tunnel = !!(input.formatted.flow_type & IXGBE_ATR_L4TYPE_TUNNEL_MASK);
	flow_type = input.formatted.flow_type &
		    (IXGBE_ATR_L4TYPE_TUNNEL_MASK - 1);
	switch (flow_type) {
	case IXGBE_ATR_FLOW_TYPE_TCPV4:
	case IXGBE_ATR_FLOW_TYPE_UDPV4:
	case IXGBE_ATR_FLOW_TYPE_SCTPV4:
	case IXGBE_ATR_FLOW_TYPE_TCPV6:
	case IXGBE_ATR_FLOW_TYPE_UDPV6:
	case IXGBE_ATR_FLOW_TYPE_SCTPV6:
		break;
	default:
		hw_dbg(hw, " Error on flow type input\n");
		return IXGBE_ERR_CONFIG;
	}

	/* configure FDIRCMD register */
	fdircmd = IXGBE_FDIRCMD_CMD_ADD_FLOW | IXGBE_FDIRCMD_FILTER_UPDATE |
		  IXGBE_FDIRCMD_LAST | IXGBE_FDIRCMD_QUEUE_EN;
	fdircmd |= (u32)flow_type << IXGBE_FDIRCMD_FLOW_TYPE_SHIFT;
	fdircmd |= (u32)queue << IXGBE_FDIRCMD_RX_QUEUE_SHIFT;
	if (tunnel)
		fdircmd |= IXGBE_FDIRCMD_TUNNEL_FILTER;

	/*
	 * The lower 32-bits of fdirhashcmd is for FDIRHASH, the upper 32-bits
	 * is for FDIRCMD.  Then do a 64-bit register write from FDIRHASH.
	 */
	fdirhashcmd = (u64)fdircmd << 32;
	fdirhashcmd |= ixgbe_atr_compute_sig_hash_82599(input, common);
	IXGBE_WRITE_REG64(hw, IXGBE_FDIRHASH, fdirhashcmd);

	hw_dbg(hw, "Tx Queue=%x hash=%x\n", queue, (u32)fdirhashcmd);

	return 0;
}

#define IXGBE_COMPUTE_BKT_HASH_ITERATION(_n) \
do { \
	u32 n = (_n); \
	if (IXGBE_ATR_BUCKET_HASH_KEY & (0x01 << n)) \
		bucket_hash ^= lo_hash_dword >> n; \
	if (IXGBE_ATR_BUCKET_HASH_KEY & (0x01 << (n + 16))) \
		bucket_hash ^= hi_hash_dword >> n; \
} while (0)

/**
 *  ixgbe_atr_compute_perfect_hash_82599 - Compute the perfect filter hash
 *  @atr_input: input bitstream to compute the hash on
 *  @input_mask: mask for the input bitstream
 *
 *  This function serves two main purposes.  First it applys the input_mask
 *  to the atr_input resulting in a cleaned up atr_input data stream.
 *  Secondly it computes the hash and stores it in the bkt_hash field at
 *  the end of the input byte stream.  This way it will be available for
 *  future use without needing to recompute the hash.
 **/
void ixgbe_atr_compute_perfect_hash_82599(union ixgbe_atr_input *input,
					  union ixgbe_atr_input *input_mask)
{

	u32 hi_hash_dword, lo_hash_dword, flow_vm_vlan;
	u32 bucket_hash = 0, hi_dword = 0;
	int i;

	/* Apply masks to input data */
	for (i = 0; i <= 10; i++)
		input->dword_stream[i] &= input_mask->dword_stream[i];

	/* record the flow_vm_vlan bits as they are a key part to the hash */
	flow_vm_vlan = ntohl(input->dword_stream[0]);

	/* generate common hash dword */
	for (i = 1; i <= 10; i++)
		hi_dword ^= input->dword_stream[i];
	hi_hash_dword = ntohl(hi_dword);

	/* low dword is word swapped version of common */
	lo_hash_dword = (hi_hash_dword >> 16) | (hi_hash_dword << 16);

	/* apply flow ID/VM pool/VLAN ID bits to hash words */
	hi_hash_dword ^= flow_vm_vlan ^ (flow_vm_vlan >> 16);

	/* Process bits 0 and 16 */
	IXGBE_COMPUTE_BKT_HASH_ITERATION(0);

	/*
	 * apply flow ID/VM pool/VLAN ID bits to lo hash dword, we had to
	 * delay this because bit 0 of the stream should not be processed
	 * so we do not add the vlan until after bit 0 was processed
	 */
	lo_hash_dword ^= flow_vm_vlan ^ (flow_vm_vlan << 16);

	/* Process remaining 30 bit of the key */
	for (i = 1; i <= 15; i++)
		IXGBE_COMPUTE_BKT_HASH_ITERATION(i);

	/*
	 * Limit hash to 13 bits since max bucket count is 8K.
	 * Store result at the end of the input stream.
	 */
	input->formatted.bkt_hash = bucket_hash & 0x1FFF;
}

/**
 *  ixgbe_get_fdirtcpm_82599 - generate a tcp port from atr_input_masks
 *  @input_mask: mask to be bit swapped
 *
 *  The source and destination port masks for flow director are bit swapped
 *  in that bit 15 effects bit 0, 14 effects 1, 13, 2 etc.  In order to
 *  generate a correctly swapped value we need to bit swap the mask and that
 *  is what is accomplished by this function.
 **/
static u32 ixgbe_get_fdirtcpm_82599(union ixgbe_atr_input *input_mask)
{
	u32 mask = ntohs(input_mask->formatted.dst_port);

	mask <<= IXGBE_FDIRTCPM_DPORTM_SHIFT;
	mask |= ntohs(input_mask->formatted.src_port);
	mask = ((mask & 0x55555555) << 1) | ((mask & 0xAAAAAAAA) >> 1);
	mask = ((mask & 0x33333333) << 2) | ((mask & 0xCCCCCCCC) >> 2);
	mask = ((mask & 0x0F0F0F0F) << 4) | ((mask & 0xF0F0F0F0) >> 4);
	return ((mask & 0x00FF00FF) << 8) | ((mask & 0xFF00FF00) >> 8);
}

/*
 * These two macros are meant to address the fact that we have registers
 * that are either all or in part big-endian.  As a result on big-endian
 * systems we will end up byte swapping the value to little-endian before
 * it is byte swapped again and written to the hardware in the original
 * big-endian format.
 */
#define IXGBE_STORE_AS_BE32(_value) \
	(((u32)(_value) >> 24) | (((u32)(_value) & 0x00FF0000) >> 8) | \
	 (((u32)(_value) & 0x0000FF00) << 8) | ((u32)(_value) << 24))

#define IXGBE_WRITE_REG_BE32(a, reg, value) \
	IXGBE_WRITE_REG((a), (reg), IXGBE_STORE_AS_BE32(ntohl(value)))

#define IXGBE_STORE_AS_BE16(_value) \
	ntohs(((u16)(_value) >> 8) | ((u16)(_value) << 8))

s32 ixgbe_fdir_set_input_mask_82599(struct ixgbe_hw *hw,
				    union ixgbe_atr_input *input_mask)
{
	/* mask IPv6 since it is currently not supported */
	u32 fdirm = IXGBE_FDIRM_DIPv6;
	u32 fdirtcpm;

	/*
	 * Program the relevant mask registers.  If src/dst_port or src/dst_addr
	 * are zero, then assume a full mask for that field.  Also assume that
	 * a VLAN of 0 is unspecified, so mask that out as well.  L4type
	 * cannot be masked out in this implementation.
	 *
	 * This also assumes IPv4 only.  IPv6 masking isn't supported at this
	 * point in time.
	 */

	/* verify bucket hash is cleared on hash generation */
	if (input_mask->formatted.bkt_hash)
		hw_dbg(hw, " bucket hash should always be 0 in mask\n");

	/* Program FDIRM and verify partial masks */
	switch (input_mask->formatted.vm_pool & 0x7F) {
	case 0x0:
		fdirm |= IXGBE_FDIRM_POOL;
	case 0x7F:
		break;
	default:
		hw_dbg(hw, " Error on vm pool mask\n");
		return IXGBE_ERR_CONFIG;
	}

	switch (input_mask->formatted.flow_type & IXGBE_ATR_L4TYPE_MASK) {
	case 0x0:
		fdirm |= IXGBE_FDIRM_L4P;
		if (input_mask->formatted.dst_port ||
		    input_mask->formatted.src_port) {
			hw_dbg(hw, " Error on src/dst port mask\n");
			return IXGBE_ERR_CONFIG;
		}
	case IXGBE_ATR_L4TYPE_MASK:
		break;
	default:
		hw_dbg(hw, " Error on flow type mask\n");
		return IXGBE_ERR_CONFIG;
	}

	switch (ntohs(input_mask->formatted.vlan_id) & 0xEFFF) {
	case 0x0000:
		/* mask VLAN ID, fall through to mask VLAN priority */
		fdirm |= IXGBE_FDIRM_VLANID;
	case 0x0FFF:
		/* mask VLAN priority */
		fdirm |= IXGBE_FDIRM_VLANP;
		break;
	case 0xE000:
		/* mask VLAN ID only, fall through */
		fdirm |= IXGBE_FDIRM_VLANID;
	case 0xEFFF:
		/* no VLAN fields masked */
		break;
	default:
		hw_dbg(hw, " Error on VLAN mask\n");
		return IXGBE_ERR_CONFIG;
	}

	switch (input_mask->formatted.flex_bytes & 0xFFFF) {
	case 0x0000:
		/* Mask Flex Bytes, fall through */
		fdirm |= IXGBE_FDIRM_FLEX;
	case 0xFFFF:
		break;
	default:
		hw_dbg(hw, " Error on flexible byte mask\n");
		return IXGBE_ERR_CONFIG;
	}

	/* Now mask VM pool and destination IPv6 - bits 5 and 2 */
	IXGBE_WRITE_REG(hw, IXGBE_FDIRM, fdirm);

	/* store the TCP/UDP port masks, bit reversed from port layout */
	fdirtcpm = ixgbe_get_fdirtcpm_82599(input_mask);

	/* write both the same so that UDP and TCP use the same mask */
	IXGBE_WRITE_REG(hw, IXGBE_FDIRTCPM, ~fdirtcpm);
	IXGBE_WRITE_REG(hw, IXGBE_FDIRUDPM, ~fdirtcpm);

	/* also use it for SCTP */
	switch (hw->mac.type) {
	case ixgbe_mac_X550:
	case ixgbe_mac_X550EM_x:
		IXGBE_WRITE_REG(hw, IXGBE_FDIRSCTPM, ~fdirtcpm);
		break;
	default:
		break;
	}

	/* store source and destination IP masks (big-enian) */
	IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRSIP4M,
			     ~input_mask->formatted.src_ip[0]);
	IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRDIP4M,
			     ~input_mask->formatted.dst_ip[0]);

	return 0;
}

s32 ixgbe_fdir_write_perfect_filter_82599(struct ixgbe_hw *hw,
					  union ixgbe_atr_input *input,
					  u16 soft_id, u8 queue)
{
	u32 fdirport, fdirvlan, fdirhash, fdircmd;
	s32 err;

	/* currently IPv6 is not supported, must be programmed with 0 */
	IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRSIPv6(0),
			     input->formatted.src_ip[0]);
	IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRSIPv6(1),
			     input->formatted.src_ip[1]);
	IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRSIPv6(2),
			     input->formatted.src_ip[2]);

	/* record the source address (big-endian) */
	IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRIPSA, input->formatted.src_ip[0]);

	/* record the first 32 bits of the destination address (big-endian) */
	IXGBE_WRITE_REG_BE32(hw, IXGBE_FDIRIPDA, input->formatted.dst_ip[0]);

	/* record source and destination port (little-endian)*/
	fdirport = ntohs(input->formatted.dst_port);
	fdirport <<= IXGBE_FDIRPORT_DESTINATION_SHIFT;
	fdirport |= ntohs(input->formatted.src_port);
	IXGBE_WRITE_REG(hw, IXGBE_FDIRPORT, fdirport);

	/* record vlan (little-endian) and flex_bytes(big-endian) */
	fdirvlan = IXGBE_STORE_AS_BE16(input->formatted.flex_bytes);
	fdirvlan <<= IXGBE_FDIRVLAN_FLEX_SHIFT;
	fdirvlan |= ntohs(input->formatted.vlan_id);
	IXGBE_WRITE_REG(hw, IXGBE_FDIRVLAN, fdirvlan);

	/* configure FDIRHASH register */
	fdirhash = input->formatted.bkt_hash;
	fdirhash |= soft_id << IXGBE_FDIRHASH_SIG_SW_INDEX_SHIFT;
	IXGBE_WRITE_REG(hw, IXGBE_FDIRHASH, fdirhash);

	/*
	 * flush all previous writes to make certain registers are
	 * programmed prior to issuing the command
	 */
	IXGBE_WRITE_FLUSH(hw);

	/* configure FDIRCMD register */
	fdircmd = IXGBE_FDIRCMD_CMD_ADD_FLOW | IXGBE_FDIRCMD_FILTER_UPDATE |
		  IXGBE_FDIRCMD_LAST | IXGBE_FDIRCMD_QUEUE_EN;
	if (queue == IXGBE_FDIR_DROP_QUEUE)
		fdircmd |= IXGBE_FDIRCMD_DROP;
	fdircmd |= input->formatted.flow_type << IXGBE_FDIRCMD_FLOW_TYPE_SHIFT;
	fdircmd |= (u32)queue << IXGBE_FDIRCMD_RX_QUEUE_SHIFT;
	fdircmd |= (u32)input->formatted.vm_pool << IXGBE_FDIRCMD_VT_POOL_SHIFT;

	IXGBE_WRITE_REG(hw, IXGBE_FDIRCMD, fdircmd);
	err = ixgbe_fdir_check_cmd_complete(hw, &fdircmd);
	if (err) {
		hw_dbg(hw, "Flow Director command did not complete!\n");
		return err;
	}

	return 0;
}

s32 ixgbe_fdir_erase_perfect_filter_82599(struct ixgbe_hw *hw,
					  union ixgbe_atr_input *input,
					  u16 soft_id)
{
	u32 fdirhash;
	u32 fdircmd;
	s32 err;

	/* configure FDIRHASH register */
	fdirhash = input->formatted.bkt_hash;
	fdirhash |= soft_id << IXGBE_FDIRHASH_SIG_SW_INDEX_SHIFT;
	IXGBE_WRITE_REG(hw, IXGBE_FDIRHASH, fdirhash);

	/* flush hash to HW */
	IXGBE_WRITE_FLUSH(hw);

	/* Query if filter is present */
	IXGBE_WRITE_REG(hw, IXGBE_FDIRCMD, IXGBE_FDIRCMD_CMD_QUERY_REM_FILT);

	err = ixgbe_fdir_check_cmd_complete(hw, &fdircmd);
	if (err) {
		hw_dbg(hw, "Flow Director command did not complete!\n");
		return err;
	}

	/* if filter exists in hardware then remove it */
	if (fdircmd & IXGBE_FDIRCMD_FILTER_VALID) {
		IXGBE_WRITE_REG(hw, IXGBE_FDIRHASH, fdirhash);
		IXGBE_WRITE_FLUSH(hw);
		IXGBE_WRITE_REG(hw, IXGBE_FDIRCMD,
				IXGBE_FDIRCMD_CMD_REMOVE_FLOW);
	}

	return 0;
}

/**
 *  ixgbe_read_analog_reg8_82599 - Reads 8 bit Omer analog register
 *  @hw: pointer to hardware structure
 *  @reg: analog register to read
 *  @val: read value
 *
 *  Performs read operation to Omer analog register specified.
 **/
static s32 ixgbe_read_analog_reg8_82599(struct ixgbe_hw *hw, u32 reg, u8 *val)
{
	u32  core_ctl;

	IXGBE_WRITE_REG(hw, IXGBE_CORECTL, IXGBE_CORECTL_WRITE_CMD |
			(reg << 8));
	IXGBE_WRITE_FLUSH(hw);
	udelay(10);
	core_ctl = IXGBE_READ_REG(hw, IXGBE_CORECTL);
	*val = (u8)core_ctl;

	return 0;
}

/**
 *  ixgbe_write_analog_reg8_82599 - Writes 8 bit Omer analog register
 *  @hw: pointer to hardware structure
 *  @reg: atlas register to write
 *  @val: value to write
 *
 *  Performs write operation to Omer analog register specified.
 **/
static s32 ixgbe_write_analog_reg8_82599(struct ixgbe_hw *hw, u32 reg, u8 val)
{
	u32  core_ctl;

	core_ctl = (reg << 8) | val;
	IXGBE_WRITE_REG(hw, IXGBE_CORECTL, core_ctl);
	IXGBE_WRITE_FLUSH(hw);
	udelay(10);

	return 0;
}

/**
 *  ixgbe_start_hw_82599 - Prepare hardware for Tx/Rx
 *  @hw: pointer to hardware structure
 *
 *  Starts the hardware using the generic start_hw function
 *  and the generation start_hw function.
 *  Then performs revision-specific operations, if any.
 **/
static s32 ixgbe_start_hw_82599(struct ixgbe_hw *hw)
{
	s32 ret_val = 0;

	ret_val = ixgbe_start_hw_generic(hw);
	if (ret_val)
		return ret_val;

	ret_val = ixgbe_start_hw_gen2(hw);
	if (ret_val)
		return ret_val;

	/* We need to run link autotry after the driver loads */
	hw->mac.autotry_restart = true;

	if (ret_val)
		return ret_val;

	return ixgbe_verify_fw_version_82599(hw);
}

/**
 *  ixgbe_identify_phy_82599 - Get physical layer module
 *  @hw: pointer to hardware structure
 *
 *  Determines the physical layer module found on the current adapter.
 *  If PHY already detected, maintains current PHY type in hw struct,
 *  otherwise executes the PHY detection routine.
 **/
static s32 ixgbe_identify_phy_82599(struct ixgbe_hw *hw)
{
	s32 status;

	/* Detect PHY if not unknown - returns success if already detected. */
	status = ixgbe_identify_phy_generic(hw);
	if (status) {
		/* 82599 10GBASE-T requires an external PHY */
		if (hw->mac.ops.get_media_type(hw) == ixgbe_media_type_copper)
			return status;
		status = ixgbe_identify_module_generic(hw);
	}

	/* Set PHY type none if no PHY detected */
	if (hw->phy.type == ixgbe_phy_unknown) {
		hw->phy.type = ixgbe_phy_none;
		status = 0;
	}

	/* Return error if SFP module has been detected but is not supported */
	if (hw->phy.type == ixgbe_phy_sfp_unsupported)
		return IXGBE_ERR_SFP_NOT_SUPPORTED;

	return status;
}

/**
 *  ixgbe_enable_rx_dma_82599 - Enable the Rx DMA unit on 82599
 *  @hw: pointer to hardware structure
 *  @regval: register value to write to RXCTRL
 *
 *  Enables the Rx DMA unit for 82599
 **/
static s32 ixgbe_enable_rx_dma_82599(struct ixgbe_hw *hw, u32 regval)
{
	/*
	 * Workaround for 82599 silicon errata when enabling the Rx datapath.
	 * If traffic is incoming before we enable the Rx unit, it could hang
	 * the Rx DMA unit.  Therefore, make sure the security engine is
	 * completely disabled prior to enabling the Rx unit.
	 */
	hw->mac.ops.disable_rx_buff(hw);

	if (regval & IXGBE_RXCTRL_RXEN)
		hw->mac.ops.enable_rx(hw);
	else
		hw->mac.ops.disable_rx(hw);

	hw->mac.ops.enable_rx_buff(hw);

	return 0;
}

/**
 *  ixgbe_verify_fw_version_82599 - verify fw version for 82599
 *  @hw: pointer to hardware structure
 *
 *  Verifies that installed the firmware version is 0.6 or higher
 *  for SFI devices. All 82599 SFI devices should have version 0.6 or higher.
 *
 *  Returns IXGBE_ERR_EEPROM_VERSION if the FW is not present or
 *  if the FW version is not supported.
 **/
static s32 ixgbe_verify_fw_version_82599(struct ixgbe_hw *hw)
{
	s32 status = IXGBE_ERR_EEPROM_VERSION;
	u16 fw_offset, fw_ptp_cfg_offset;
	u16 offset;
	u16 fw_version = 0;

	/* firmware check is only necessary for SFI devices */
	if (hw->phy.media_type != ixgbe_media_type_fiber)
		return 0;

	/* get the offset to the Firmware Module block */
	offset = IXGBE_FW_PTR;
	if (hw->eeprom.ops.read(hw, offset, &fw_offset))
		goto fw_version_err;

	if (fw_offset == 0 || fw_offset == 0xFFFF)
		return IXGBE_ERR_EEPROM_VERSION;

	/* get the offset to the Pass Through Patch Configuration block */
	offset = fw_offset + IXGBE_FW_PASSTHROUGH_PATCH_CONFIG_PTR;
	if (hw->eeprom.ops.read(hw, offset, &fw_ptp_cfg_offset))
		goto fw_version_err;

	if (fw_ptp_cfg_offset == 0 || fw_ptp_cfg_offset == 0xFFFF)
		return IXGBE_ERR_EEPROM_VERSION;

	/* get the firmware version */
	offset = fw_ptp_cfg_offset + IXGBE_FW_PATCH_VERSION_4;
	if (hw->eeprom.ops.read(hw, offset, &fw_version))
		goto fw_version_err;

	if (fw_version > 0x5)
		status = 0;

	return status;

fw_version_err:
	hw_err(hw, "eeprom read at offset %d failed\n", offset);
	return IXGBE_ERR_EEPROM_VERSION;
}

/**
 *  ixgbe_verify_lesm_fw_enabled_82599 - Checks LESM FW module state.
 *  @hw: pointer to hardware structure
 *
 *  Returns true if the LESM FW module is present and enabled. Otherwise
 *  returns false. Smart Speed must be disabled if LESM FW module is enabled.
 **/
static bool ixgbe_verify_lesm_fw_enabled_82599(struct ixgbe_hw *hw)
{
	u16 fw_offset, fw_lesm_param_offset, fw_lesm_state;
	s32 status;

	/* get the offset to the Firmware Module block */
	status = hw->eeprom.ops.read(hw, IXGBE_FW_PTR, &fw_offset);

	if (status || fw_offset == 0 || fw_offset == 0xFFFF)
		return false;

	/* get the offset to the LESM Parameters block */
	status = hw->eeprom.ops.read(hw, (fw_offset +
				     IXGBE_FW_LESM_PARAMETERS_PTR),
				     &fw_lesm_param_offset);

	if (status ||
	    fw_lesm_param_offset == 0 || fw_lesm_param_offset == 0xFFFF)
		return false;

	/* get the lesm state word */
	status = hw->eeprom.ops.read(hw, (fw_lesm_param_offset +
				     IXGBE_FW_LESM_STATE_1),
				     &fw_lesm_state);

	if (!status && (fw_lesm_state & IXGBE_FW_LESM_STATE_ENABLED))
		return true;

	return false;
}

/**
 *  ixgbe_read_eeprom_buffer_82599 - Read EEPROM word(s) using
 *  fastest available method
 *
 *  @hw: pointer to hardware structure
 *  @offset: offset of  word in EEPROM to read
 *  @words: number of words
 *  @data: word(s) read from the EEPROM
 *
 *  Retrieves 16 bit word(s) read from EEPROM
 **/
static s32 ixgbe_read_eeprom_buffer_82599(struct ixgbe_hw *hw, u16 offset,
					  u16 words, u16 *data)
{
	struct ixgbe_eeprom_info *eeprom = &hw->eeprom;

	/* If EEPROM is detected and can be addressed using 14 bits,
	 * use EERD otherwise use bit bang
	 */
	if (eeprom->type == ixgbe_eeprom_spi &&
	    offset + (words - 1) <= IXGBE_EERD_MAX_ADDR)
		return ixgbe_read_eerd_buffer_generic(hw, offset, words, data);

	return ixgbe_read_eeprom_buffer_bit_bang_generic(hw, offset, words,
							 data);
}

/**
 *  ixgbe_read_eeprom_82599 - Read EEPROM word using
 *  fastest available method
 *
 *  @hw: pointer to hardware structure
 *  @offset: offset of  word in the EEPROM to read
 *  @data: word read from the EEPROM
 *
 *  Reads a 16 bit word from the EEPROM
 **/
static s32 ixgbe_read_eeprom_82599(struct ixgbe_hw *hw,
				   u16 offset, u16 *data)
{
	struct ixgbe_eeprom_info *eeprom = &hw->eeprom;

	/*
	 * If EEPROM is detected and can be addressed using 14 bits,
	 * use EERD otherwise use bit bang
	 */
	if (eeprom->type == ixgbe_eeprom_spi && offset <= IXGBE_EERD_MAX_ADDR)
		return ixgbe_read_eerd_generic(hw, offset, data);

	return ixgbe_read_eeprom_bit_bang_generic(hw, offset, data);
}

/**
 * ixgbe_reset_pipeline_82599 - perform pipeline reset
 *
 * @hw: pointer to hardware structure
 *
 * Reset pipeline by asserting Restart_AN together with LMS change to ensure
 * full pipeline reset.  Note - We must hold the SW/FW semaphore before writing
 * to AUTOC, so this function assumes the semaphore is held.
 **/
static s32 ixgbe_reset_pipeline_82599(struct ixgbe_hw *hw)
{
	s32 ret_val;
	u32 anlp1_reg = 0;
	u32 i, autoc_reg, autoc2_reg;

	/* Enable link if disabled in NVM */
	autoc2_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC2);
	if (autoc2_reg & IXGBE_AUTOC2_LINK_DISABLE_MASK) {
		autoc2_reg &= ~IXGBE_AUTOC2_LINK_DISABLE_MASK;
		IXGBE_WRITE_REG(hw, IXGBE_AUTOC2, autoc2_reg);
		IXGBE_WRITE_FLUSH(hw);
	}

	autoc_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC);
	autoc_reg |= IXGBE_AUTOC_AN_RESTART;

	/* Write AUTOC register with toggled LMS[2] bit and Restart_AN */
	IXGBE_WRITE_REG(hw, IXGBE_AUTOC,
			autoc_reg ^ (0x4 << IXGBE_AUTOC_LMS_SHIFT));

	/* Wait for AN to leave state 0 */
	for (i = 0; i < 10; i++) {
		usleep_range(4000, 8000);
		anlp1_reg = IXGBE_READ_REG(hw, IXGBE_ANLP1);
		if (anlp1_reg & IXGBE_ANLP1_AN_STATE_MASK)
			break;
	}

	if (!(anlp1_reg & IXGBE_ANLP1_AN_STATE_MASK)) {
		hw_dbg(hw, "auto negotiation not completed\n");
		ret_val = IXGBE_ERR_RESET_FAILED;
		goto reset_pipeline_out;
	}

	ret_val = 0;

reset_pipeline_out:
	/* Write AUTOC register with original LMS field and Restart_AN */
	IXGBE_WRITE_REG(hw, IXGBE_AUTOC, autoc_reg);
	IXGBE_WRITE_FLUSH(hw);

	return ret_val;
}

/**
 *  ixgbe_read_i2c_byte_82599 - Reads 8 bit word over I2C
 *  @hw: pointer to hardware structure
 *  @byte_offset: byte offset to read
 *  @data: value read
 *
 *  Performs byte read operation to SFP module's EEPROM over I2C interface at
 *  a specified device address.
 **/
static s32 ixgbe_read_i2c_byte_82599(struct ixgbe_hw *hw, u8 byte_offset,
				     u8 dev_addr, u8 *data)
{
	u32 esdp;
	s32 status;
	s32 timeout = 200;

	if (hw->phy.qsfp_shared_i2c_bus == true) {
		/* Acquire I2C bus ownership. */
		esdp = IXGBE_READ_REG(hw, IXGBE_ESDP);
		esdp |= IXGBE_ESDP_SDP0;
		IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp);
		IXGBE_WRITE_FLUSH(hw);

		while (timeout) {
			esdp = IXGBE_READ_REG(hw, IXGBE_ESDP);
			if (esdp & IXGBE_ESDP_SDP1)
				break;

			usleep_range(5000, 10000);
			timeout--;
		}

		if (!timeout) {
			hw_dbg(hw, "Driver can't access resource, acquiring I2C bus timeout.\n");
			status = IXGBE_ERR_I2C;
			goto release_i2c_access;
		}
	}

	status = ixgbe_read_i2c_byte_generic(hw, byte_offset, dev_addr, data);

release_i2c_access:
	if (hw->phy.qsfp_shared_i2c_bus == true) {
		/* Release I2C bus ownership. */
		esdp = IXGBE_READ_REG(hw, IXGBE_ESDP);
		esdp &= ~IXGBE_ESDP_SDP0;
		IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp);
		IXGBE_WRITE_FLUSH(hw);
	}

	return status;
}

/**
 *  ixgbe_write_i2c_byte_82599 - Writes 8 bit word over I2C
 *  @hw: pointer to hardware structure
 *  @byte_offset: byte offset to write
 *  @data: value to write
 *
 *  Performs byte write operation to SFP module's EEPROM over I2C interface at
 *  a specified device address.
 **/
static s32 ixgbe_write_i2c_byte_82599(struct ixgbe_hw *hw, u8 byte_offset,
				      u8 dev_addr, u8 data)
{
	u32 esdp;
	s32 status;
	s32 timeout = 200;

	if (hw->phy.qsfp_shared_i2c_bus == true) {
		/* Acquire I2C bus ownership. */
		esdp = IXGBE_READ_REG(hw, IXGBE_ESDP);
		esdp |= IXGBE_ESDP_SDP0;
		IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp);
		IXGBE_WRITE_FLUSH(hw);

		while (timeout) {
			esdp = IXGBE_READ_REG(hw, IXGBE_ESDP);
			if (esdp & IXGBE_ESDP_SDP1)
				break;

			usleep_range(5000, 10000);
			timeout--;
		}

		if (!timeout) {
			hw_dbg(hw, "Driver can't access resource, acquiring I2C bus timeout.\n");
			status = IXGBE_ERR_I2C;
			goto release_i2c_access;
		}
	}

	status = ixgbe_write_i2c_byte_generic(hw, byte_offset, dev_addr, data);

release_i2c_access:
	if (hw->phy.qsfp_shared_i2c_bus == true) {
		/* Release I2C bus ownership. */
		esdp = IXGBE_READ_REG(hw, IXGBE_ESDP);
		esdp &= ~IXGBE_ESDP_SDP0;
		IXGBE_WRITE_REG(hw, IXGBE_ESDP, esdp);
		IXGBE_WRITE_FLUSH(hw);
	}

	return status;
}

static struct ixgbe_mac_operations mac_ops_82599 = {
	.init_hw                = &ixgbe_init_hw_generic,
	.reset_hw               = &ixgbe_reset_hw_82599,
	.start_hw               = &ixgbe_start_hw_82599,
	.clear_hw_cntrs         = &ixgbe_clear_hw_cntrs_generic,
	.get_media_type         = &ixgbe_get_media_type_82599,
	.enable_rx_dma          = &ixgbe_enable_rx_dma_82599,
	.disable_rx_buff	= &ixgbe_disable_rx_buff_generic,
	.enable_rx_buff		= &ixgbe_enable_rx_buff_generic,
	.get_mac_addr           = &ixgbe_get_mac_addr_generic,
	.get_san_mac_addr       = &ixgbe_get_san_mac_addr_generic,
	.get_device_caps        = &ixgbe_get_device_caps_generic,
	.get_wwn_prefix         = &ixgbe_get_wwn_prefix_generic,
	.stop_adapter           = &ixgbe_stop_adapter_generic,
	.get_bus_info           = &ixgbe_get_bus_info_generic,
	.set_lan_id             = &ixgbe_set_lan_id_multi_port_pcie,
	.read_analog_reg8       = &ixgbe_read_analog_reg8_82599,
	.write_analog_reg8      = &ixgbe_write_analog_reg8_82599,
	.stop_link_on_d3	= &ixgbe_stop_mac_link_on_d3_82599,
	.setup_link             = &ixgbe_setup_mac_link_82599,
	.set_rxpba		= &ixgbe_set_rxpba_generic,
	.check_link             = &ixgbe_check_mac_link_generic,
	.get_link_capabilities  = &ixgbe_get_link_capabilities_82599,
	.led_on                 = &ixgbe_led_on_generic,
	.led_off                = &ixgbe_led_off_generic,
	.blink_led_start        = &ixgbe_blink_led_start_generic,
	.blink_led_stop         = &ixgbe_blink_led_stop_generic,
	.set_rar                = &ixgbe_set_rar_generic,
	.clear_rar              = &ixgbe_clear_rar_generic,
	.set_vmdq               = &ixgbe_set_vmdq_generic,
	.set_vmdq_san_mac	= &ixgbe_set_vmdq_san_mac_generic,
	.clear_vmdq             = &ixgbe_clear_vmdq_generic,
	.init_rx_addrs          = &ixgbe_init_rx_addrs_generic,
	.update_mc_addr_list    = &ixgbe_update_mc_addr_list_generic,
	.enable_mc              = &ixgbe_enable_mc_generic,
	.disable_mc             = &ixgbe_disable_mc_generic,
	.clear_vfta             = &ixgbe_clear_vfta_generic,
	.set_vfta               = &ixgbe_set_vfta_generic,
	.fc_enable              = &ixgbe_fc_enable_generic,
	.set_fw_drv_ver         = &ixgbe_set_fw_drv_ver_generic,
	.init_uta_tables        = &ixgbe_init_uta_tables_generic,
	.setup_sfp              = &ixgbe_setup_sfp_modules_82599,
	.set_mac_anti_spoofing  = &ixgbe_set_mac_anti_spoofing,
	.set_vlan_anti_spoofing = &ixgbe_set_vlan_anti_spoofing,
	.acquire_swfw_sync      = &ixgbe_acquire_swfw_sync,
	.release_swfw_sync      = &ixgbe_release_swfw_sync,
	.get_thermal_sensor_data = &ixgbe_get_thermal_sensor_data_generic,
	.init_thermal_sensor_thresh = &ixgbe_init_thermal_sensor_thresh_generic,
	.prot_autoc_read	= &prot_autoc_read_82599,
	.prot_autoc_write	= &prot_autoc_write_82599,
	.enable_rx		= &ixgbe_enable_rx_generic,
	.disable_rx		= &ixgbe_disable_rx_generic,
};

static struct ixgbe_eeprom_operations eeprom_ops_82599 = {
	.init_params		= &ixgbe_init_eeprom_params_generic,
	.read			= &ixgbe_read_eeprom_82599,
	.read_buffer		= &ixgbe_read_eeprom_buffer_82599,
	.write			= &ixgbe_write_eeprom_generic,
	.write_buffer		= &ixgbe_write_eeprom_buffer_bit_bang_generic,
	.calc_checksum		= &ixgbe_calc_eeprom_checksum_generic,
	.validate_checksum	= &ixgbe_validate_eeprom_checksum_generic,
	.update_checksum	= &ixgbe_update_eeprom_checksum_generic,
};

static struct ixgbe_phy_operations phy_ops_82599 = {
	.identify		= &ixgbe_identify_phy_82599,
	.identify_sfp		= &ixgbe_identify_module_generic,
	.init			= &ixgbe_init_phy_ops_82599,
	.reset			= &ixgbe_reset_phy_generic,
	.read_reg		= &ixgbe_read_phy_reg_generic,
	.write_reg		= &ixgbe_write_phy_reg_generic,
	.setup_link		= &ixgbe_setup_phy_link_generic,
	.setup_link_speed	= &ixgbe_setup_phy_link_speed_generic,
	.read_i2c_byte		= &ixgbe_read_i2c_byte_generic,
	.write_i2c_byte		= &ixgbe_write_i2c_byte_generic,
	.read_i2c_sff8472	= &ixgbe_read_i2c_sff8472_generic,
	.read_i2c_eeprom	= &ixgbe_read_i2c_eeprom_generic,
	.write_i2c_eeprom	= &ixgbe_write_i2c_eeprom_generic,
	.check_overtemp		= &ixgbe_tn_check_overtemp,
};

struct ixgbe_info ixgbe_82599_info = {
	.mac                    = ixgbe_mac_82599EB,
	.get_invariants         = &ixgbe_get_invariants_82599,
	.mac_ops                = &mac_ops_82599,
	.eeprom_ops             = &eeprom_ops_82599,
	.phy_ops                = &phy_ops_82599,
	.mbx_ops                = &mbx_ops_generic,
	.mvals			= ixgbe_mvals_8259X,
};