aboutsummaryrefslogblamecommitdiffstats
path: root/drivers/net/e1000e/ethtool.c
blob: 87f9da1b6b4ef9e2786dba5048414570a670cd66 (plain) (tree)
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















































































































                                                                                
                   




































                                                                             







                                                         
 
                                             












                                                                             









                                                            


































































































































                                                                                
                                              



















































































































































































































































































                                                                                     














































































































































































































                                                                               









                                                                     















































































































































































































































































































































































































































































































































































































































































                                                                                
                  


                                                   
                  









































                                                                    
                                                                     
 







                                       
































































































































































                                                                               

                               
































                                                                            























                                                                              
                                                     





















                                                                      
                                                 














                                                       


                                                    
                                                          
                                                        





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

  Intel PRO/1000 Linux driver
  Copyright(c) 1999 - 2007 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

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

/* ethtool support for e1000 */

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

#include "e1000.h"

struct e1000_stats {
	char stat_string[ETH_GSTRING_LEN];
	int sizeof_stat;
	int stat_offset;
};

#define E1000_STAT(m) sizeof(((struct e1000_adapter *)0)->m), \
		      offsetof(struct e1000_adapter, m)
static const struct e1000_stats e1000_gstrings_stats[] = {
	{ "rx_packets", E1000_STAT(stats.gprc) },
	{ "tx_packets", E1000_STAT(stats.gptc) },
	{ "rx_bytes", E1000_STAT(stats.gorcl) },
	{ "tx_bytes", E1000_STAT(stats.gotcl) },
	{ "rx_broadcast", E1000_STAT(stats.bprc) },
	{ "tx_broadcast", E1000_STAT(stats.bptc) },
	{ "rx_multicast", E1000_STAT(stats.mprc) },
	{ "tx_multicast", E1000_STAT(stats.mptc) },
	{ "rx_errors", E1000_STAT(net_stats.rx_errors) },
	{ "tx_errors", E1000_STAT(net_stats.tx_errors) },
	{ "tx_dropped", E1000_STAT(net_stats.tx_dropped) },
	{ "multicast", E1000_STAT(stats.mprc) },
	{ "collisions", E1000_STAT(stats.colc) },
	{ "rx_length_errors", E1000_STAT(net_stats.rx_length_errors) },
	{ "rx_over_errors", E1000_STAT(net_stats.rx_over_errors) },
	{ "rx_crc_errors", E1000_STAT(stats.crcerrs) },
	{ "rx_frame_errors", E1000_STAT(net_stats.rx_frame_errors) },
	{ "rx_no_buffer_count", E1000_STAT(stats.rnbc) },
	{ "rx_missed_errors", E1000_STAT(stats.mpc) },
	{ "tx_aborted_errors", E1000_STAT(stats.ecol) },
	{ "tx_carrier_errors", E1000_STAT(stats.tncrs) },
	{ "tx_fifo_errors", E1000_STAT(net_stats.tx_fifo_errors) },
	{ "tx_heartbeat_errors", E1000_STAT(net_stats.tx_heartbeat_errors) },
	{ "tx_window_errors", E1000_STAT(stats.latecol) },
	{ "tx_abort_late_coll", E1000_STAT(stats.latecol) },
	{ "tx_deferred_ok", E1000_STAT(stats.dc) },
	{ "tx_single_coll_ok", E1000_STAT(stats.scc) },
	{ "tx_multi_coll_ok", E1000_STAT(stats.mcc) },
	{ "tx_timeout_count", E1000_STAT(tx_timeout_count) },
	{ "tx_restart_queue", E1000_STAT(restart_queue) },
	{ "rx_long_length_errors", E1000_STAT(stats.roc) },
	{ "rx_short_length_errors", E1000_STAT(stats.ruc) },
	{ "rx_align_errors", E1000_STAT(stats.algnerrc) },
	{ "tx_tcp_seg_good", E1000_STAT(stats.tsctc) },
	{ "tx_tcp_seg_failed", E1000_STAT(stats.tsctfc) },
	{ "rx_flow_control_xon", E1000_STAT(stats.xonrxc) },
	{ "rx_flow_control_xoff", E1000_STAT(stats.xoffrxc) },
	{ "tx_flow_control_xon", E1000_STAT(stats.xontxc) },
	{ "tx_flow_control_xoff", E1000_STAT(stats.xofftxc) },
	{ "rx_long_byte_count", E1000_STAT(stats.gorcl) },
	{ "rx_csum_offload_good", E1000_STAT(hw_csum_good) },
	{ "rx_csum_offload_errors", E1000_STAT(hw_csum_err) },
	{ "rx_header_split", E1000_STAT(rx_hdr_split) },
	{ "alloc_rx_buff_failed", E1000_STAT(alloc_rx_buff_failed) },
	{ "tx_smbus", E1000_STAT(stats.mgptc) },
	{ "rx_smbus", E1000_STAT(stats.mgprc) },
	{ "dropped_smbus", E1000_STAT(stats.mgpdc) },
	{ "rx_dma_failed", E1000_STAT(rx_dma_failed) },
	{ "tx_dma_failed", E1000_STAT(tx_dma_failed) },
};

#define E1000_GLOBAL_STATS_LEN	\
	sizeof(e1000_gstrings_stats) / sizeof(struct e1000_stats)
#define E1000_STATS_LEN (E1000_GLOBAL_STATS_LEN)
static const char e1000_gstrings_test[][ETH_GSTRING_LEN] = {
	"Register test  (offline)", "Eeprom test    (offline)",
	"Interrupt test (offline)", "Loopback test  (offline)",
	"Link test   (on/offline)"
};
#define E1000_TEST_LEN sizeof(e1000_gstrings_test) / ETH_GSTRING_LEN

static int e1000_get_settings(struct net_device *netdev,
			      struct ethtool_cmd *ecmd)
{
	struct e1000_adapter *adapter = netdev_priv(netdev);
	struct e1000_hw *hw = &adapter->hw;
	u32 status;

	if (hw->media_type == e1000_media_type_copper) {

		ecmd->supported = (SUPPORTED_10baseT_Half |
				   SUPPORTED_10baseT_Full |
				   SUPPORTED_100baseT_Half |
				   SUPPORTED_100baseT_Full |
				   SUPPORTED_1000baseT_Full |
				   SUPPORTED_Autoneg |
				   SUPPORTED_TP);
		if (hw->phy.type == e1000_phy_ife)
			ecmd->supported &= ~SUPPORTED_1000baseT_Full;
		ecmd->advertising = ADVERTISED_TP;

		if (hw->mac.autoneg == 1) {
			ecmd->advertising |= ADVERTISED_Autoneg;
			/* the e1000 autoneg seems to match ethtool nicely */
			ecmd->advertising |= hw->phy.autoneg_advertised;
		}

		ecmd->port = PORT_TP;
		ecmd->phy_address = hw->phy.addr;
		ecmd->transceiver = XCVR_INTERNAL;

	} else {
		ecmd->supported   = (SUPPORTED_1000baseT_Full |
				     SUPPORTED_FIBRE |
				     SUPPORTED_Autoneg);

		ecmd->advertising = (ADVERTISED_1000baseT_Full |
				     ADVERTISED_FIBRE |
				     ADVERTISED_Autoneg);

		ecmd->port = PORT_FIBRE;
		ecmd->transceiver = XCVR_EXTERNAL;
	}

	status = er32(STATUS);
	if (status & E1000_STATUS_LU) {
		if (status & E1000_STATUS_SPEED_1000)
			ecmd->speed = 1000;
		else if (status & E1000_STATUS_SPEED_100)
			ecmd->speed = 100;
		else
			ecmd->speed = 10;

		if (status & E1000_STATUS_FD)
			ecmd->duplex = DUPLEX_FULL;
		else
			ecmd->duplex = DUPLEX_HALF;
	} else {
		ecmd->speed = -1;
		ecmd->duplex = -1;
	}

	ecmd->autoneg = ((hw->media_type == e1000_media_type_fiber) ||
			 hw->mac.autoneg) ? AUTONEG_ENABLE : AUTONEG_DISABLE;
	return 0;
}

static u32 e1000_get_link(struct net_device *netdev)
{
	struct e1000_adapter *adapter = netdev_priv(netdev);
	struct e1000_hw *hw = &adapter->hw;
	u32 status;
	
	status = er32(STATUS);
	return (status & E1000_STATUS_LU);
}

static int e1000_set_spd_dplx(struct e1000_adapter *adapter, u16 spddplx)
{
	struct e1000_mac_info *mac = &adapter->hw.mac;

	mac->autoneg = 0;

	/* Fiber NICs only allow 1000 gbps Full duplex */
	if ((adapter->hw.media_type == e1000_media_type_fiber) &&
		spddplx != (SPEED_1000 + DUPLEX_FULL)) {
		ndev_err(adapter->netdev, "Unsupported Speed/Duplex "
			 "configuration\n");
		return -EINVAL;
	}

	switch (spddplx) {
	case SPEED_10 + DUPLEX_HALF:
		mac->forced_speed_duplex = ADVERTISE_10_HALF;
		break;
	case SPEED_10 + DUPLEX_FULL:
		mac->forced_speed_duplex = ADVERTISE_10_FULL;
		break;
	case SPEED_100 + DUPLEX_HALF:
		mac->forced_speed_duplex = ADVERTISE_100_HALF;
		break;
	case SPEED_100 + DUPLEX_FULL:
		mac->forced_speed_duplex = ADVERTISE_100_FULL;
		break;
	case SPEED_1000 + DUPLEX_FULL:
		mac->autoneg = 1;
		adapter->hw.phy.autoneg_advertised = ADVERTISE_1000_FULL;
		break;
	case SPEED_1000 + DUPLEX_HALF: /* not supported */
	default:
		ndev_err(adapter->netdev, "Unsupported Speed/Duplex "
			 "configuration\n");
		return -EINVAL;
	}
	return 0;
}

static int e1000_set_settings(struct net_device *netdev,
			      struct ethtool_cmd *ecmd)
{
	struct e1000_adapter *adapter = netdev_priv(netdev);
	struct e1000_hw *hw = &adapter->hw;

	/* When SoL/IDER sessions are active, autoneg/speed/duplex
	 * cannot be changed */
	if (e1000_check_reset_block(hw)) {
		ndev_err(netdev, "Cannot change link "
			 "characteristics when SoL/IDER is active.\n");
		return -EINVAL;
	}

	while (test_and_set_bit(__E1000_RESETTING, &adapter->state))
		msleep(1);

	if (ecmd->autoneg == AUTONEG_ENABLE) {
		hw->mac.autoneg = 1;
		if (hw->media_type == e1000_media_type_fiber)
			hw->phy.autoneg_advertised = ADVERTISED_1000baseT_Full |
						     ADVERTISED_FIBRE |
						     ADVERTISED_Autoneg;
		else
			hw->phy.autoneg_advertised = ecmd->advertising |
						     ADVERTISED_TP |
						     ADVERTISED_Autoneg;
		ecmd->advertising = hw->phy.autoneg_advertised;
	} else {
		if (e1000_set_spd_dplx(adapter, ecmd->speed + ecmd->duplex)) {
			clear_bit(__E1000_RESETTING, &adapter->state);
			return -EINVAL;
		}
	}

	/* reset the link */

	if (netif_running(adapter->netdev)) {
		e1000e_down(adapter);
		e1000e_up(adapter);
	} else {
		e1000e_reset(adapter);
	}

	clear_bit(__E1000_RESETTING, &adapter->state);
	return 0;
}

static void e1000_get_pauseparam(struct net_device *netdev,
				 struct ethtool_pauseparam *pause)
{
	struct e1000_adapter *adapter = netdev_priv(netdev);
	struct e1000_hw *hw = &adapter->hw;

	pause->autoneg =
		(adapter->fc_autoneg ? AUTONEG_ENABLE : AUTONEG_DISABLE);

	if (hw->mac.fc == e1000_fc_rx_pause) {
		pause->rx_pause = 1;
	} else if (hw->mac.fc == e1000_fc_tx_pause) {
		pause->tx_pause = 1;
	} else if (hw->mac.fc == e1000_fc_full) {
		pause->rx_pause = 1;
		pause->tx_pause = 1;
	}
}

static int e1000_set_pauseparam(struct net_device *netdev,
				struct ethtool_pauseparam *pause)
{
	struct e1000_adapter *adapter = netdev_priv(netdev);
	struct e1000_hw *hw = &adapter->hw;
	int retval = 0;

	adapter->fc_autoneg = pause->autoneg;

	while (test_and_set_bit(__E1000_RESETTING, &adapter->state))
		msleep(1);

	if (pause->rx_pause && pause->tx_pause)
		hw->mac.fc = e1000_fc_full;
	else if (pause->rx_pause && !pause->tx_pause)
		hw->mac.fc = e1000_fc_rx_pause;
	else if (!pause->rx_pause && pause->tx_pause)
		hw->mac.fc = e1000_fc_tx_pause;
	else if (!pause->rx_pause && !pause->tx_pause)
		hw->mac.fc = e1000_fc_none;

	hw->mac.original_fc = hw->mac.fc;

	if (adapter->fc_autoneg == AUTONEG_ENABLE) {
		hw->mac.fc = e1000_fc_default;
		if (netif_running(adapter->netdev)) {
			e1000e_down(adapter);
			e1000e_up(adapter);
		} else {
			e1000e_reset(adapter);
		}
	} else {
		retval = ((hw->media_type == e1000_media_type_fiber) ?
			  hw->mac.ops.setup_link(hw) : e1000e_force_mac_fc(hw));
	}

	clear_bit(__E1000_RESETTING, &adapter->state);
	return retval;
}

static u32 e1000_get_rx_csum(struct net_device *netdev)
{
	struct e1000_adapter *adapter = netdev_priv(netdev);
	return (adapter->flags & FLAG_RX_CSUM_ENABLED);
}

static int e1000_set_rx_csum(struct net_device *netdev, u32 data)
{
	struct e1000_adapter *adapter = netdev_priv(netdev);

	if (data)
		adapter->flags |= FLAG_RX_CSUM_ENABLED;
	else
		adapter->flags &= ~FLAG_RX_CSUM_ENABLED;

	if (netif_running(netdev))
		e1000e_reinit_locked(adapter);
	else
		e1000e_reset(adapter);
	return 0;
}

static u32 e1000_get_tx_csum(struct net_device *netdev)
{
	return ((netdev->features & NETIF_F_HW_CSUM) != 0);
}

static int e1000_set_tx_csum(struct net_device *netdev, u32 data)
{
	if (data)
		netdev->features |= NETIF_F_HW_CSUM;
	else
		netdev->features &= ~NETIF_F_HW_CSUM;

	return 0;
}

static int e1000_set_tso(struct net_device *netdev, u32 data)
{
	struct e1000_adapter *adapter = netdev_priv(netdev);

	if (data) {
		netdev->features |= NETIF_F_TSO;
		netdev->features |= NETIF_F_TSO6;
	} else {
		netdev->features &= ~NETIF_F_TSO;
		netdev->features &= ~NETIF_F_TSO6;
	}

	ndev_info(netdev, "TSO is %s\n",
		  data ? "Enabled" : "Disabled");
	adapter->flags |= FLAG_TSO_FORCE;
	return 0;
}

static u32 e1000_get_msglevel(struct net_device *netdev)
{
	struct e1000_adapter *adapter = netdev_priv(netdev);
	return adapter->msg_enable;
}

static void e1000_set_msglevel(struct net_device *netdev, u32 data)
{
	struct e1000_adapter *adapter = netdev_priv(netdev);
	adapter->msg_enable = data;
}

static int e1000_get_regs_len(struct net_device *netdev)
{
#define E1000_REGS_LEN 32 /* overestimate */
	return E1000_REGS_LEN * sizeof(u32);
}

static void e1000_get_regs(struct net_device *netdev,
			   struct ethtool_regs *regs, void *p)
{
	struct e1000_adapter *adapter = netdev_priv(netdev);
	struct e1000_hw *hw = &adapter->hw;
	u32 *regs_buff = p;
	u16 phy_data;
	u8 revision_id;

	memset(p, 0, E1000_REGS_LEN * sizeof(u32));

	pci_read_config_byte(adapter->pdev, PCI_REVISION_ID, &revision_id);

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

	regs_buff[0]  = er32(CTRL);
	regs_buff[1]  = er32(STATUS);

	regs_buff[2]  = er32(RCTL);
	regs_buff[3]  = er32(RDLEN);
	regs_buff[4]  = er32(RDH);
	regs_buff[5]  = er32(RDT);
	regs_buff[6]  = er32(RDTR);

	regs_buff[7]  = er32(TCTL);
	regs_buff[8]  = er32(TDLEN);
	regs_buff[9]  = er32(TDH);
	regs_buff[10] = er32(TDT);
	regs_buff[11] = er32(TIDV);

	regs_buff[12] = adapter->hw.phy.type;  /* PHY type (IGP=1, M88=0) */
	if (hw->phy.type == e1000_phy_m88) {
		e1e_rphy(hw, M88E1000_PHY_SPEC_STATUS, &phy_data);
		regs_buff[13] = (u32)phy_data; /* cable length */
		regs_buff[14] = 0;  /* Dummy (to align w/ IGP phy reg dump) */
		regs_buff[15] = 0;  /* Dummy (to align w/ IGP phy reg dump) */
		regs_buff[16] = 0;  /* Dummy (to align w/ IGP phy reg dump) */
		e1e_rphy(hw, M88E1000_PHY_SPEC_CTRL, &phy_data);
		regs_buff[17] = (u32)phy_data; /* extended 10bt distance */
		regs_buff[18] = regs_buff[13]; /* cable polarity */
		regs_buff[19] = 0;  /* Dummy (to align w/ IGP phy reg dump) */
		regs_buff[20] = regs_buff[17]; /* polarity correction */
		/* phy receive errors */
		regs_buff[22] = adapter->phy_stats.receive_errors;
		regs_buff[23] = regs_buff[13]; /* mdix mode */
	}
	regs_buff[21] = adapter->phy_stats.idle_errors;  /* phy idle errors */
	e1e_rphy(hw, PHY_1000T_STATUS, &phy_data);
	regs_buff[24] = (u32)phy_data;  /* phy local receiver status */
	regs_buff[25] = regs_buff[24];  /* phy remote receiver status */
}

static int e1000_get_eeprom_len(struct net_device *netdev)
{
	struct e1000_adapter *adapter = netdev_priv(netdev);
	return adapter->hw.nvm.word_size * 2;
}

static int e1000_get_eeprom(struct net_device *netdev,
			    struct ethtool_eeprom *eeprom, u8 *bytes)
{
	struct e1000_adapter *adapter = netdev_priv(netdev);
	struct e1000_hw *hw = &adapter->hw;
	u16 *eeprom_buff;
	int first_word;
	int last_word;
	int ret_val = 0;
	u16 i;

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

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

	first_word = eeprom->offset >> 1;
	last_word = (eeprom->offset + eeprom->len - 1) >> 1;

	eeprom_buff = kmalloc(sizeof(u16) *
			(last_word - first_word + 1), GFP_KERNEL);
	if (!eeprom_buff)
		return -ENOMEM;

	if (hw->nvm.type == e1000_nvm_eeprom_spi) {
		ret_val = e1000_read_nvm(hw, first_word,
					 last_word - first_word + 1,
					 eeprom_buff);
	} else {
		for (i = 0; i < last_word - first_word + 1; i++) {
			ret_val = e1000_read_nvm(hw, first_word + i, 1,
						      &eeprom_buff[i]);
			if (ret_val)
				break;
		}
	}

	/* Device's eeprom is always little-endian, word addressable */
	for (i = 0; i < last_word - first_word + 1; i++)
		le16_to_cpus(&eeprom_buff[i]);

	memcpy(bytes, (u8 *)eeprom_buff + (eeprom->offset & 1), eeprom->len);
	kfree(eeprom_buff);

	return ret_val;
}

static int e1000_set_eeprom(struct net_device *netdev,
			    struct ethtool_eeprom *eeprom, u8 *bytes)
{
	struct e1000_adapter *adapter = netdev_priv(netdev);
	struct e1000_hw *hw = &adapter->hw;
	u16 *eeprom_buff;
	void *ptr;
	int max_len;
	int first_word;
	int last_word;
	int ret_val = 0;
	u16 i;

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

	if (eeprom->magic != (adapter->pdev->vendor | (adapter->pdev->device << 16)))
		return -EFAULT;

	max_len = hw->nvm.word_size * 2;

	first_word = eeprom->offset >> 1;
	last_word = (eeprom->offset + eeprom->len - 1) >> 1;
	eeprom_buff = kmalloc(max_len, GFP_KERNEL);
	if (!eeprom_buff)
		return -ENOMEM;

	ptr = (void *)eeprom_buff;

	if (eeprom->offset & 1) {
		/* need read/modify/write of first changed EEPROM word */
		/* only the second byte of the word is being modified */
		ret_val = e1000_read_nvm(hw, first_word, 1, &eeprom_buff[0]);
		ptr++;
	}
	if (((eeprom->offset + eeprom->len) & 1) && (ret_val == 0))
		/* need read/modify/write of last changed EEPROM word */
		/* only the first byte of the word is being modified */
		ret_val = e1000_read_nvm(hw, last_word, 1,
				  &eeprom_buff[last_word - first_word]);

	/* Device's eeprom is always little-endian, word addressable */
	for (i = 0; i < last_word - first_word + 1; i++)
		le16_to_cpus(&eeprom_buff[i]);

	memcpy(ptr, bytes, eeprom->len);

	for (i = 0; i < last_word - first_word + 1; i++)
		eeprom_buff[i] = cpu_to_le16(eeprom_buff[i]);

	ret_val = e1000_write_nvm(hw, first_word,
				  last_word - first_word + 1, eeprom_buff);

	/* Update the checksum over the first part of the EEPROM if needed
	 * and flush shadow RAM for 82573 controllers */
	if ((ret_val == 0) && ((first_word <= NVM_CHECKSUM_REG) ||
			       (hw->mac.type == e1000_82573)))
		e1000e_update_nvm_checksum(hw);

	kfree(eeprom_buff);
	return ret_val;
}

static void e1000_get_drvinfo(struct net_device *netdev,
			      struct ethtool_drvinfo *drvinfo)
{
	struct e1000_adapter *adapter = netdev_priv(netdev);
	char firmware_version[32];
	u16 eeprom_data;

	strncpy(drvinfo->driver,  e1000e_driver_name, 32);
	strncpy(drvinfo->version, e1000e_driver_version, 32);

	/* EEPROM image version # is reported as firmware version # for
	 * PCI-E controllers */
	e1000_read_nvm(&adapter->hw, 5, 1, &eeprom_data);
	sprintf(firmware_version, "%d.%d-%d",
		(eeprom_data & 0xF000) >> 12,
		(eeprom_data & 0x0FF0) >> 4,
		eeprom_data & 0x000F);

	strncpy(drvinfo->fw_version, firmware_version, 32);
	strncpy(drvinfo->bus_info, pci_name(adapter->pdev), 32);
	drvinfo->regdump_len = e1000_get_regs_len(netdev);
	drvinfo->eedump_len = e1000_get_eeprom_len(netdev);
}

static void e1000_get_ringparam(struct net_device *netdev,
				struct ethtool_ringparam *ring)
{
	struct e1000_adapter *adapter = netdev_priv(netdev);
	struct e1000_ring *tx_ring = adapter->tx_ring;
	struct e1000_ring *rx_ring = adapter->rx_ring;

	ring->rx_max_pending = E1000_MAX_RXD;
	ring->tx_max_pending = E1000_MAX_TXD;
	ring->rx_mini_max_pending = 0;
	ring->rx_jumbo_max_pending = 0;
	ring->rx_pending = rx_ring->count;
	ring->tx_pending = tx_ring->count;
	ring->rx_mini_pending = 0;
	ring->rx_jumbo_pending = 0;
}

static int e1000_set_ringparam(struct net_device *netdev,
			       struct ethtool_ringparam *ring)
{
	struct e1000_adapter *adapter = netdev_priv(netdev);
	struct e1000_ring *tx_ring, *tx_old;
	struct e1000_ring *rx_ring, *rx_old;
	int err;

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

	while (test_and_set_bit(__E1000_RESETTING, &adapter->state))
		msleep(1);

	if (netif_running(adapter->netdev))
		e1000e_down(adapter);

	tx_old = adapter->tx_ring;
	rx_old = adapter->rx_ring;

	err = -ENOMEM;
	tx_ring = kzalloc(sizeof(struct e1000_ring), GFP_KERNEL);
	if (!tx_ring)
		goto err_alloc_tx;

	rx_ring = kzalloc(sizeof(struct e1000_ring), GFP_KERNEL);
	if (!rx_ring)
		goto err_alloc_rx;

	adapter->tx_ring = tx_ring;
	adapter->rx_ring = rx_ring;

	rx_ring->count = max(ring->rx_pending, (u32)E1000_MIN_RXD);
	rx_ring->count = min(rx_ring->count, (u32)(E1000_MAX_RXD));
	rx_ring->count = ALIGN(rx_ring->count, REQ_RX_DESCRIPTOR_MULTIPLE);

	tx_ring->count = max(ring->tx_pending, (u32)E1000_MIN_TXD);
	tx_ring->count = min(tx_ring->count, (u32)(E1000_MAX_TXD));
	tx_ring->count = ALIGN(tx_ring->count, REQ_TX_DESCRIPTOR_MULTIPLE);

	if (netif_running(adapter->netdev)) {
		/* Try to get new resources before deleting old */
		err = e1000e_setup_rx_resources(adapter);
		if (err)
			goto err_setup_rx;
		err = e1000e_setup_tx_resources(adapter);
		if (err)
			goto err_setup_tx;

		/* save the new, restore the old in order to free it,
		 * then restore the new back again */
		adapter->rx_ring = rx_old;
		adapter->tx_ring = tx_old;
		e1000e_free_rx_resources(adapter);
		e1000e_free_tx_resources(adapter);
		kfree(tx_old);
		kfree(rx_old);
		adapter->rx_ring = rx_ring;
		adapter->tx_ring = tx_ring;
		err = e1000e_up(adapter);
		if (err)
			goto err_setup;
	}

	clear_bit(__E1000_RESETTING, &adapter->state);
	return 0;
err_setup_tx:
	e1000e_free_rx_resources(adapter);
err_setup_rx:
	adapter->rx_ring = rx_old;
	adapter->tx_ring = tx_old;
	kfree(rx_ring);
err_alloc_rx:
	kfree(tx_ring);
err_alloc_tx:
	e1000e_up(adapter);
err_setup:
	clear_bit(__E1000_RESETTING, &adapter->state);
	return err;
}

#define REG_PATTERN_TEST(R, M, W) REG_PATTERN_TEST_ARRAY(R, 0, M, W)
#define REG_PATTERN_TEST_ARRAY(reg, offset, mask, writeable)		      \
{									      \
	u32 _pat;							      \
	u32 _value;							      \
	u32 _test[] = {0x5A5A5A5A, 0xA5A5A5A5, 0x00000000, 0xFFFFFFFF};	      \
	for (_pat = 0; _pat < ARRAY_SIZE(_test); _pat++) {		      \
		E1000_WRITE_REG_ARRAY(hw, reg, offset,	      \
				      (_test[_pat] & writeable));	      \
		_value = E1000_READ_REG_ARRAY(hw, reg, offset);     \
		if (_value != (_test[_pat] & writeable & mask)) {	      \
			ndev_err(netdev, "pattern test reg %04X "             \
				 "failed: got 0x%08X expected 0x%08X\n",      \
				 reg + offset,  \
				 value, (_test[_pat] & writeable & mask));    \
			*data = reg;					      \
			return 1;					      \
		}							      \
	}								      \
}

#define REG_SET_AND_CHECK(R, M, W)					      \
{									      \
	u32 _value;							      \
	__ew32(hw, R, W & M);						\
	_value = __er32(hw, R);						\
	if ((W & M) != (_value & M)) {					      \
		ndev_err(netdev, "set/check reg %04X test failed: "           \
			 "got 0x%08X expected 0x%08X\n", R, (_value & M),     \
			 (W & M));					      \
		*data = R;						      \
		return 1;						      \
	}								      \
}

static int e1000_reg_test(struct e1000_adapter *adapter, u64 *data)
{
	struct e1000_hw *hw = &adapter->hw;
	struct e1000_mac_info *mac = &adapter->hw.mac;
	struct net_device *netdev = adapter->netdev;
	u32 value;
	u32 before;
	u32 after;
	u32 i;
	u32 toggle;

	/* The status register is Read Only, so a write should fail.
	 * Some bits that get toggled are ignored.
	 */
	switch (mac->type) {
	/* there are several bits on newer hardware that are r/w */
	case e1000_82571:
	case e1000_82572:
	case e1000_80003es2lan:
		toggle = 0x7FFFF3FF;
		break;
	case e1000_82573:
	case e1000_ich8lan:
	case e1000_ich9lan:
		toggle = 0x7FFFF033;
		break;
	default:
		toggle = 0xFFFFF833;
		break;
	}

	before = er32(STATUS);
	value = (er32(STATUS) & toggle);
	ew32(STATUS, toggle);
	after = er32(STATUS) & toggle;
	if (value != after) {
		ndev_err(netdev, "failed STATUS register test got: "
			 "0x%08X expected: 0x%08X\n", after, value);
		*data = 1;
		return 1;
	}
	/* restore previous status */
	ew32(STATUS, before);

	if ((mac->type != e1000_ich8lan) &&
	    (mac->type != e1000_ich9lan)) {
		REG_PATTERN_TEST(E1000_FCAL, 0xFFFFFFFF, 0xFFFFFFFF);
		REG_PATTERN_TEST(E1000_FCAH, 0x0000FFFF, 0xFFFFFFFF);
		REG_PATTERN_TEST(E1000_FCT, 0x0000FFFF, 0xFFFFFFFF);
		REG_PATTERN_TEST(E1000_VET, 0x0000FFFF, 0xFFFFFFFF);
	}

	REG_PATTERN_TEST(E1000_RDTR, 0x0000FFFF, 0xFFFFFFFF);
	REG_PATTERN_TEST(E1000_RDBAH, 0xFFFFFFFF, 0xFFFFFFFF);
	REG_PATTERN_TEST(E1000_RDLEN, 0x000FFF80, 0x000FFFFF);
	REG_PATTERN_TEST(E1000_RDH, 0x0000FFFF, 0x0000FFFF);
	REG_PATTERN_TEST(E1000_RDT, 0x0000FFFF, 0x0000FFFF);
	REG_PATTERN_TEST(E1000_FCRTH, 0x0000FFF8, 0x0000FFF8);
	REG_PATTERN_TEST(E1000_FCTTV, 0x0000FFFF, 0x0000FFFF);
	REG_PATTERN_TEST(E1000_TIPG, 0x3FFFFFFF, 0x3FFFFFFF);
	REG_PATTERN_TEST(E1000_TDBAH, 0xFFFFFFFF, 0xFFFFFFFF);
	REG_PATTERN_TEST(E1000_TDLEN, 0x000FFF80, 0x000FFFFF);

	REG_SET_AND_CHECK(E1000_RCTL, 0xFFFFFFFF, 0x00000000);

	before = (((mac->type == e1000_ich8lan) ||
		   (mac->type == e1000_ich9lan)) ? 0x06C3B33E : 0x06DFB3FE);
	REG_SET_AND_CHECK(E1000_RCTL, before, 0x003FFFFB);
	REG_SET_AND_CHECK(E1000_TCTL, 0xFFFFFFFF, 0x00000000);

	REG_SET_AND_CHECK(E1000_RCTL, before, 0xFFFFFFFF);
	REG_PATTERN_TEST(E1000_RDBAL, 0xFFFFFFF0, 0xFFFFFFFF);
	if ((mac->type != e1000_ich8lan) &&
	    (mac->type != e1000_ich9lan))
		REG_PATTERN_TEST(E1000_TXCW, 0xC000FFFF, 0x0000FFFF);
	REG_PATTERN_TEST(E1000_TDBAL, 0xFFFFFFF0, 0xFFFFFFFF);
	REG_PATTERN_TEST(E1000_TIDV, 0x0000FFFF, 0x0000FFFF);
	for (i = 0; i < mac->rar_entry_count; i++)
		REG_PATTERN_TEST_ARRAY(E1000_RA, ((i << 1) + 1),
				       0x8003FFFF, 0xFFFFFFFF);

	for (i = 0; i < mac->mta_reg_count; i++)
		REG_PATTERN_TEST_ARRAY(E1000_MTA, i, 0xFFFFFFFF, 0xFFFFFFFF);

	*data = 0;
	return 0;
}

static int e1000_eeprom_test(struct e1000_adapter *adapter, u64 *data)
{
	u16 temp;
	u16 checksum = 0;
	u16 i;

	*data = 0;
	/* Read and add up the contents of the EEPROM */
	for (i = 0; i < (NVM_CHECKSUM_REG + 1); i++) {
		if ((e1000_read_nvm(&adapter->hw, i, 1, &temp)) < 0) {
			*data = 1;
			break;
		}
		checksum += temp;
	}

	/* If Checksum is not Correct return error else test passed */
	if ((checksum != (u16) NVM_SUM) && !(*data))
		*data = 2;

	return *data;
}

static irqreturn_t e1000_test_intr(int irq, void *data)
{
	struct net_device *netdev = (struct net_device *) data;
	struct e1000_adapter *adapter = netdev_priv(netdev);
	struct e1000_hw *hw = &adapter->hw;

	adapter->test_icr |= er32(ICR);

	return IRQ_HANDLED;
}

static int e1000_intr_test(struct e1000_adapter *adapter, u64 *data)
{
	struct net_device *netdev = adapter->netdev;
	struct e1000_hw *hw = &adapter->hw;
	u32 mask;
	u32 shared_int = 1;
	u32 irq = adapter->pdev->irq;
	int i;

	*data = 0;

	/* NOTE: we don't test MSI interrupts here, yet */
	/* Hook up test interrupt handler just for this test */
	if (!request_irq(irq, &e1000_test_intr, IRQF_PROBE_SHARED, netdev->name,
			 netdev)) {
		shared_int = 0;
	} else if (request_irq(irq, &e1000_test_intr, IRQF_SHARED,
		 netdev->name, netdev)) {
		*data = 1;
		return -1;
	}
	ndev_info(netdev, "testing %s interrupt\n",
		  (shared_int ? "shared" : "unshared"));

	/* Disable all the interrupts */
	ew32(IMC, 0xFFFFFFFF);
	msleep(10);

	/* Test each interrupt */
	for (i = 0; i < 10; i++) {

		if (((adapter->hw.mac.type == e1000_ich8lan) ||
		     (adapter->hw.mac.type == e1000_ich9lan)) && i == 8)
			continue;

		/* Interrupt to test */
		mask = 1 << i;

		if (!shared_int) {
			/* Disable the interrupt to be reported in
			 * the cause register and then force the same
			 * interrupt and see if one gets posted.  If
			 * an interrupt was posted to the bus, the
			 * test failed.
			 */
			adapter->test_icr = 0;
			ew32(IMC, mask);
			ew32(ICS, mask);
			msleep(10);

			if (adapter->test_icr & mask) {
				*data = 3;
				break;
			}
		}

		/* Enable the interrupt to be reported in
		 * the cause register and then force the same
		 * interrupt and see if one gets posted.  If
		 * an interrupt was not posted to the bus, the
		 * test failed.
		 */
		adapter->test_icr = 0;
		ew32(IMS, mask);
		ew32(ICS, mask);
		msleep(10);

		if (!(adapter->test_icr & mask)) {
			*data = 4;
			break;
		}

		if (!shared_int) {
			/* Disable the other interrupts to be reported in
			 * the cause register and then force the other
			 * interrupts and see if any get posted.  If
			 * an interrupt was posted to the bus, the
			 * test failed.
			 */
			adapter->test_icr = 0;
			ew32(IMC, ~mask & 0x00007FFF);
			ew32(ICS, ~mask & 0x00007FFF);
			msleep(10);

			if (adapter->test_icr) {
				*data = 5;
				break;
			}
		}
	}

	/* Disable all the interrupts */
	ew32(IMC, 0xFFFFFFFF);
	msleep(10);

	/* Unhook test interrupt handler */
	free_irq(irq, netdev);

	return *data;
}

static void e1000_free_desc_rings(struct e1000_adapter *adapter)
{
	struct e1000_ring *tx_ring = &adapter->test_tx_ring;
	struct e1000_ring *rx_ring = &adapter->test_rx_ring;
	struct pci_dev *pdev = adapter->pdev;
	int i;

	if (tx_ring->desc && tx_ring->buffer_info) {
		for (i = 0; i < tx_ring->count; i++) {
			if (tx_ring->buffer_info[i].dma)
				pci_unmap_single(pdev,
					tx_ring->buffer_info[i].dma,
					tx_ring->buffer_info[i].length,
					PCI_DMA_TODEVICE);
			if (tx_ring->buffer_info[i].skb)
				dev_kfree_skb(tx_ring->buffer_info[i].skb);
		}
	}

	if (rx_ring->desc && rx_ring->buffer_info) {
		for (i = 0; i < rx_ring->count; i++) {
			if (rx_ring->buffer_info[i].dma)
				pci_unmap_single(pdev,
					rx_ring->buffer_info[i].dma,
					2048, PCI_DMA_FROMDEVICE);
			if (rx_ring->buffer_info[i].skb)
				dev_kfree_skb(rx_ring->buffer_info[i].skb);
		}
	}

	if (tx_ring->desc) {
		dma_free_coherent(&pdev->dev, tx_ring->size, tx_ring->desc,
				  tx_ring->dma);
		tx_ring->desc = NULL;
	}
	if (rx_ring->desc) {
		dma_free_coherent(&pdev->dev, rx_ring->size, rx_ring->desc,
				  rx_ring->dma);
		rx_ring->desc = NULL;
	}

	kfree(tx_ring->buffer_info);
	tx_ring->buffer_info = NULL;
	kfree(rx_ring->buffer_info);
	rx_ring->buffer_info = NULL;
}

static int e1000_setup_desc_rings(struct e1000_adapter *adapter)
{
	struct e1000_ring *tx_ring = &adapter->test_tx_ring;
	struct e1000_ring *rx_ring = &adapter->test_rx_ring;
	struct pci_dev *pdev = adapter->pdev;
	struct e1000_hw *hw = &adapter->hw;
	u32 rctl;
	int size;
	int i;
	int ret_val;

	/* Setup Tx descriptor ring and Tx buffers */

	if (!tx_ring->count)
		tx_ring->count = E1000_DEFAULT_TXD;

	size = tx_ring->count * sizeof(struct e1000_buffer);
	tx_ring->buffer_info = kmalloc(size, GFP_KERNEL);
	if (!tx_ring->buffer_info) {
		ret_val = 1;
		goto err_nomem;
	}
	memset(tx_ring->buffer_info, 0, size);

	tx_ring->size = tx_ring->count * sizeof(struct e1000_tx_desc);
	tx_ring->size = ALIGN(tx_ring->size, 4096);
	tx_ring->desc = dma_alloc_coherent(&pdev->dev, tx_ring->size,
					   &tx_ring->dma, GFP_KERNEL);
	if (!tx_ring->desc) {
		ret_val = 2;
		goto err_nomem;
	}
	memset(tx_ring->desc, 0, tx_ring->size);
	tx_ring->next_to_use = 0;
	tx_ring->next_to_clean = 0;

	ew32(TDBAL,
			((u64) tx_ring->dma & 0x00000000FFFFFFFF));
	ew32(TDBAH, ((u64) tx_ring->dma >> 32));
	ew32(TDLEN,
			tx_ring->count * sizeof(struct e1000_tx_desc));
	ew32(TDH, 0);
	ew32(TDT, 0);
	ew32(TCTL,
			E1000_TCTL_PSP | E1000_TCTL_EN |
			E1000_COLLISION_THRESHOLD << E1000_CT_SHIFT |
			E1000_COLLISION_DISTANCE << E1000_COLD_SHIFT);

	for (i = 0; i < tx_ring->count; i++) {
		struct e1000_tx_desc *tx_desc = E1000_TX_DESC(*tx_ring, i);
		struct sk_buff *skb;
		unsigned int skb_size = 1024;

		skb = alloc_skb(skb_size, GFP_KERNEL);
		if (!skb) {
			ret_val = 3;
			goto err_nomem;
		}
		skb_put(skb, skb_size);
		tx_ring->buffer_info[i].skb = skb;
		tx_ring->buffer_info[i].length = skb->len;
		tx_ring->buffer_info[i].dma =
			pci_map_single(pdev, skb->data, skb->len,
				       PCI_DMA_TODEVICE);
		if (pci_dma_mapping_error(tx_ring->buffer_info[i].dma)) {
			ret_val = 4;
			goto err_nomem;
		}
		tx_desc->buffer_addr = cpu_to_le64(
					 tx_ring->buffer_info[i].dma);
		tx_desc->lower.data = cpu_to_le32(skb->len);
		tx_desc->lower.data |= cpu_to_le32(E1000_TXD_CMD_EOP |
						   E1000_TXD_CMD_IFCS |
						   E1000_TXD_CMD_RPS);
		tx_desc->upper.data = 0;
	}

	/* Setup Rx descriptor ring and Rx buffers */

	if (!rx_ring->count)
		rx_ring->count = E1000_DEFAULT_RXD;

	size = rx_ring->count * sizeof(struct e1000_buffer);
	rx_ring->buffer_info = kmalloc(size, GFP_KERNEL);
	if (!rx_ring->buffer_info) {
		ret_val = 5;
		goto err_nomem;
	}
	memset(rx_ring->buffer_info, 0, size);

	rx_ring->size = rx_ring->count * sizeof(struct e1000_rx_desc);
	rx_ring->desc = dma_alloc_coherent(&pdev->dev, rx_ring->size,
					   &rx_ring->dma, GFP_KERNEL);
	if (!rx_ring->desc) {
		ret_val = 6;
		goto err_nomem;
	}
	memset(rx_ring->desc, 0, rx_ring->size);
	rx_ring->next_to_use = 0;
	rx_ring->next_to_clean = 0;

	rctl = er32(RCTL);
	ew32(RCTL, rctl & ~E1000_RCTL_EN);
	ew32(RDBAL, ((u64) rx_ring->dma & 0xFFFFFFFF));
	ew32(RDBAH, ((u64) rx_ring->dma >> 32));
	ew32(RDLEN, rx_ring->size);
	ew32(RDH, 0);
	ew32(RDT, 0);
	rctl = E1000_RCTL_EN | E1000_RCTL_BAM | E1000_RCTL_SZ_2048 |
		E1000_RCTL_LBM_NO | E1000_RCTL_RDMTS_HALF |
		(adapter->hw.mac.mc_filter_type << E1000_RCTL_MO_SHIFT);
	ew32(RCTL, rctl);

	for (i = 0; i < rx_ring->count; i++) {
		struct e1000_rx_desc *rx_desc = E1000_RX_DESC(*rx_ring, i);
		struct sk_buff *skb;

		skb = alloc_skb(2048 + NET_IP_ALIGN, GFP_KERNEL);
		if (!skb) {
			ret_val = 7;
			goto err_nomem;
		}
		skb_reserve(skb, NET_IP_ALIGN);
		rx_ring->buffer_info[i].skb = skb;
		rx_ring->buffer_info[i].dma =
			pci_map_single(pdev, skb->data, 2048,
				       PCI_DMA_FROMDEVICE);
		if (pci_dma_mapping_error(rx_ring->buffer_info[i].dma)) {
			ret_val = 8;
			goto err_nomem;
		}
		rx_desc->buffer_addr =
			cpu_to_le64(rx_ring->buffer_info[i].dma);
		memset(skb->data, 0x00, skb->len);
	}

	return 0;

err_nomem:
	e1000_free_desc_rings(adapter);
	return ret_val;
}

static void e1000_phy_disable_receiver(struct e1000_adapter *adapter)
{
	/* Write out to PHY registers 29 and 30 to disable the Receiver. */
	e1e_wphy(&adapter->hw, 29, 0x001F);
	e1e_wphy(&adapter->hw, 30, 0x8FFC);
	e1e_wphy(&adapter->hw, 29, 0x001A);
	e1e_wphy(&adapter->hw, 30, 0x8FF0);
}

static int e1000_integrated_phy_loopback(struct e1000_adapter *adapter)
{
	struct e1000_hw *hw = &adapter->hw;
	u32 ctrl_reg = 0;
	u32 stat_reg = 0;

	adapter->hw.mac.autoneg = 0;

	if (adapter->hw.phy.type == e1000_phy_m88) {
		/* Auto-MDI/MDIX Off */
		e1e_wphy(hw, M88E1000_PHY_SPEC_CTRL, 0x0808);
		/* reset to update Auto-MDI/MDIX */
		e1e_wphy(hw, PHY_CONTROL, 0x9140);
		/* autoneg off */
		e1e_wphy(hw, PHY_CONTROL, 0x8140);
	} else if (adapter->hw.phy.type == e1000_phy_gg82563)
		e1e_wphy(hw, GG82563_PHY_KMRN_MODE_CTRL, 0x1CC);

	ctrl_reg = er32(CTRL);

	if (adapter->hw.phy.type == e1000_phy_ife) {
		/* force 100, set loopback */
		e1e_wphy(hw, PHY_CONTROL, 0x6100);

		/* Now set up the MAC to the same speed/duplex as the PHY. */
		ctrl_reg &= ~E1000_CTRL_SPD_SEL; /* Clear the speed sel bits */
		ctrl_reg |= (E1000_CTRL_FRCSPD | /* Set the Force Speed Bit */
			     E1000_CTRL_FRCDPX | /* Set the Force Duplex Bit */
			     E1000_CTRL_SPD_100 |/* Force Speed to 100 */
			     E1000_CTRL_FD);	 /* Force Duplex to FULL */
	} else {
		/* force 1000, set loopback */
		e1e_wphy(hw, PHY_CONTROL, 0x4140);

		/* Now set up the MAC to the same speed/duplex as the PHY. */
		ctrl_reg = er32(CTRL);
		ctrl_reg &= ~E1000_CTRL_SPD_SEL; /* Clear the speed sel bits */
		ctrl_reg |= (E1000_CTRL_FRCSPD | /* Set the Force Speed Bit */
			     E1000_CTRL_FRCDPX | /* Set the Force Duplex Bit */
			     E1000_CTRL_SPD_1000 |/* Force Speed to 1000 */
			     E1000_CTRL_FD);	 /* Force Duplex to FULL */
	}

	if (adapter->hw.media_type == e1000_media_type_copper &&
	   adapter->hw.phy.type == e1000_phy_m88) {
		ctrl_reg |= E1000_CTRL_ILOS; /* Invert Loss of Signal */
	} else {
		/* Set the ILOS bit on the fiber Nic if half duplex link is
		 * detected. */
		stat_reg = er32(STATUS);
		if ((stat_reg & E1000_STATUS_FD) == 0)
			ctrl_reg |= (E1000_CTRL_ILOS | E1000_CTRL_SLU);
	}

	ew32(CTRL, ctrl_reg);

	/* Disable the receiver on the PHY so when a cable is plugged in, the
	 * PHY does not begin to autoneg when a cable is reconnected to the NIC.
	 */
	if (adapter->hw.phy.type == e1000_phy_m88)
		e1000_phy_disable_receiver(adapter);

	udelay(500);

	return 0;
}

static int e1000_set_82571_fiber_loopback(struct e1000_adapter *adapter)
{
	struct e1000_hw *hw = &adapter->hw;
	u32 ctrl = er32(CTRL);
	int link = 0;

	/* special requirements for 82571/82572 fiber adapters */

	/* jump through hoops to make sure link is up because serdes
	 * link is hardwired up */
	ctrl |= E1000_CTRL_SLU;
	ew32(CTRL, ctrl);

	/* disable autoneg */
	ctrl = er32(TXCW);
	ctrl &= ~(1 << 31);
	ew32(TXCW, ctrl);

	link = (er32(STATUS) & E1000_STATUS_LU);

	if (!link) {
		/* set invert loss of signal */
		ctrl = er32(CTRL);
		ctrl |= E1000_CTRL_ILOS;
		ew32(CTRL, ctrl);
	}

	/* special write to serdes control register to enable SerDes analog
	 * loopback */
#define E1000_SERDES_LB_ON 0x410
	ew32(SCTL, E1000_SERDES_LB_ON);
	msleep(10);

	return 0;
}

/* only call this for fiber/serdes connections to es2lan */
static int e1000_set_es2lan_mac_loopback(struct e1000_adapter *adapter)
{
	struct e1000_hw *hw = &adapter->hw;
	u32 ctrlext = er32(CTRL_EXT);
	u32 ctrl = er32(CTRL);

	/* save CTRL_EXT to restore later, reuse an empty variable (unused
	   on mac_type 80003es2lan) */
	adapter->tx_fifo_head = ctrlext;

	/* clear the serdes mode bits, putting the device into mac loopback */
	ctrlext &= ~E1000_CTRL_EXT_LINK_MODE_PCIE_SERDES;
	ew32(CTRL_EXT, ctrlext);

	/* force speed to 1000/FD, link up */
	ctrl &= ~(E1000_CTRL_SPD_1000 | E1000_CTRL_SPD_100);
	ctrl |= (E1000_CTRL_SLU | E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX |
		 E1000_CTRL_SPD_1000 | E1000_CTRL_FD);
	ew32(CTRL, ctrl);

	/* set mac loopback */
	ctrl = er32(RCTL);
	ctrl |= E1000_RCTL_LBM_MAC;
	ew32(RCTL, ctrl);

	/* set testing mode parameters (no need to reset later) */
#define KMRNCTRLSTA_OPMODE (0x1F << 16)
#define KMRNCTRLSTA_OPMODE_1GB_FD_GMII 0x0582
	ew32(KMRNCTRLSTA,
		(KMRNCTRLSTA_OPMODE | KMRNCTRLSTA_OPMODE_1GB_FD_GMII));

	return 0;
}

static int e1000_setup_loopback_test(struct e1000_adapter *adapter)
{
	struct e1000_hw *hw = &adapter->hw;
	u32 rctl;

	if (hw->media_type == e1000_media_type_fiber ||
	    hw->media_type == e1000_media_type_internal_serdes) {
		switch (hw->mac.type) {
		case e1000_80003es2lan:
			return e1000_set_es2lan_mac_loopback(adapter);
			break;
		case e1000_82571:
		case e1000_82572:
			return e1000_set_82571_fiber_loopback(adapter);
			break;
		default:
			rctl = er32(RCTL);
			rctl |= E1000_RCTL_LBM_TCVR;
			ew32(RCTL, rctl);
			return 0;
		}
	} else if (hw->media_type == e1000_media_type_copper) {
		return e1000_integrated_phy_loopback(adapter);
	}

	return 7;
}

static void e1000_loopback_cleanup(struct e1000_adapter *adapter)
{
	struct e1000_hw *hw = &adapter->hw;
	u32 rctl;
	u16 phy_reg;

	rctl = er32(RCTL);
	rctl &= ~(E1000_RCTL_LBM_TCVR | E1000_RCTL_LBM_MAC);
	ew32(RCTL, rctl);

	switch (hw->mac.type) {
	case e1000_80003es2lan:
		if (hw->media_type == e1000_media_type_fiber ||
		    hw->media_type == e1000_media_type_internal_serdes) {
			/* restore CTRL_EXT, stealing space from tx_fifo_head */
			ew32(CTRL_EXT,
					adapter->tx_fifo_head);
			adapter->tx_fifo_head = 0;
		}
		/* fall through */
	case e1000_82571:
	case e1000_82572:
		if (hw->media_type == e1000_media_type_fiber ||
		    hw->media_type == e1000_media_type_internal_serdes) {
#define E1000_SERDES_LB_OFF 0x400
			ew32(SCTL, E1000_SERDES_LB_OFF);
			msleep(10);
			break;
		}
		/* Fall Through */
	default:
		hw->mac.autoneg = 1;
		if (hw->phy.type == e1000_phy_gg82563)
			e1e_wphy(hw, GG82563_PHY_KMRN_MODE_CTRL, 0x180);
		e1e_rphy(hw, PHY_CONTROL, &phy_reg);
		if (phy_reg & MII_CR_LOOPBACK) {
			phy_reg &= ~MII_CR_LOOPBACK;
			e1e_wphy(hw, PHY_CONTROL, phy_reg);
			e1000e_commit_phy(hw);
		}
		break;
	}
}

static void e1000_create_lbtest_frame(struct sk_buff *skb,
				      unsigned int frame_size)
{
	memset(skb->data, 0xFF, frame_size);
	frame_size &= ~1;
	memset(&skb->data[frame_size / 2], 0xAA, frame_size / 2 - 1);
	memset(&skb->data[frame_size / 2 + 10], 0xBE, 1);
	memset(&skb->data[frame_size / 2 + 12], 0xAF, 1);
}

static int e1000_check_lbtest_frame(struct sk_buff *skb,
				    unsigned int frame_size)
{
	frame_size &= ~1;
	if (*(skb->data + 3) == 0xFF)
		if ((*(skb->data + frame_size / 2 + 10) == 0xBE) &&
		   (*(skb->data + frame_size / 2 + 12) == 0xAF))
			return 0;
	return 13;
}

static int e1000_run_loopback_test(struct e1000_adapter *adapter)
{
	struct e1000_ring *tx_ring = &adapter->test_tx_ring;
	struct e1000_ring *rx_ring = &adapter->test_rx_ring;
	struct pci_dev *pdev = adapter->pdev;
	struct e1000_hw *hw = &adapter->hw;
	int i, j, k, l;
	int lc;
	int good_cnt;
	int ret_val = 0;
	unsigned long time;

	ew32(RDT, rx_ring->count - 1);

	/* Calculate the loop count based on the largest descriptor ring
	 * The idea is to wrap the largest ring a number of times using 64
	 * send/receive pairs during each loop
	 */

	if (rx_ring->count <= tx_ring->count)
		lc = ((tx_ring->count / 64) * 2) + 1;
	else
		lc = ((rx_ring->count / 64) * 2) + 1;

	k = 0;
	l = 0;
	for (j = 0; j <= lc; j++) { /* loop count loop */
		for (i = 0; i < 64; i++) { /* send the packets */
			e1000_create_lbtest_frame(
				tx_ring->buffer_info[i].skb, 1024);
			pci_dma_sync_single_for_device(pdev,
					tx_ring->buffer_info[k].dma,
					tx_ring->buffer_info[k].length,
					PCI_DMA_TODEVICE);
			k++;
			if (k == tx_ring->count)
				k = 0;
		}
		ew32(TDT, k);
		msleep(200);
		time = jiffies; /* set the start time for the receive */
		good_cnt = 0;
		do { /* receive the sent packets */
			pci_dma_sync_single_for_cpu(pdev,
					rx_ring->buffer_info[l].dma, 2048,
					PCI_DMA_FROMDEVICE);

			ret_val = e1000_check_lbtest_frame(
					rx_ring->buffer_info[l].skb, 1024);
			if (!ret_val)
				good_cnt++;
			l++;
			if (l == rx_ring->count)
				l = 0;
			/* time + 20 msecs (200 msecs on 2.4) is more than
			 * enough time to complete the receives, if it's
			 * exceeded, break and error off
			 */
		} while ((good_cnt < 64) && !time_after(jiffies, time + 20));
		if (good_cnt != 64) {
			ret_val = 13; /* ret_val is the same as mis-compare */
			break;
		}
		if (jiffies >= (time + 2)) {
			ret_val = 14; /* error code for time out error */
			break;
		}
	} /* end loop count loop */
	return ret_val;
}

static int e1000_loopback_test(struct e1000_adapter *adapter, u64 *data)
{
	/* PHY loopback cannot be performed if SoL/IDER
	 * sessions are active */
	if (e1000_check_reset_block(&adapter->hw)) {
		ndev_err(adapter->netdev, "Cannot do PHY loopback test "
			 "when SoL/IDER is active.\n");
		*data = 0;
		goto out;
	}

	*data = e1000_setup_desc_rings(adapter);
	if (*data)
		goto out;

	*data = e1000_setup_loopback_test(adapter);
	if (*data)
		goto err_loopback;

	*data = e1000_run_loopback_test(adapter);
	e1000_loopback_cleanup(adapter);

err_loopback:
	e1000_free_desc_rings(adapter);
out:
	return *data;
}

static int e1000_link_test(struct e1000_adapter *adapter, u64 *data)
{
	struct e1000_hw *hw = &adapter->hw;

	*data = 0;
	if (hw->media_type == e1000_media_type_internal_serdes) {
		int i = 0;
		hw->mac.serdes_has_link = 0;

		/* On some blade server designs, link establishment
		 * could take as long as 2-3 minutes */
		do {
			hw->mac.ops.check_for_link(hw);
			if (hw->mac.serdes_has_link)
				return *data;
			msleep(20);
		} while (i++ < 3750);

		*data = 1;
	} else {
		hw->mac.ops.check_for_link(hw);
		if (hw->mac.autoneg)
			msleep(4000);

		if (!(er32(STATUS) &
		      E1000_STATUS_LU))
			*data = 1;
	}
	return *data;
}

static int e1000e_get_sset_count(struct net_device *netdev, int sset)
{
	switch (sset) {
	case ETH_SS_TEST:
		return E1000_TEST_LEN;
	case ETH_SS_STATS:
		return E1000_STATS_LEN;
	default:
		return -EOPNOTSUPP;
	}
}

static void e1000_diag_test(struct net_device *netdev,
			    struct ethtool_test *eth_test, u64 *data)
{
	struct e1000_adapter *adapter = netdev_priv(netdev);
	u16 autoneg_advertised;
	u8 forced_speed_duplex;
	u8 autoneg;
	bool if_running = netif_running(netdev);

	set_bit(__E1000_TESTING, &adapter->state);
	if (eth_test->flags == ETH_TEST_FL_OFFLINE) {
		/* Offline tests */

		/* save speed, duplex, autoneg settings */
		autoneg_advertised = adapter->hw.phy.autoneg_advertised;
		forced_speed_duplex = adapter->hw.mac.forced_speed_duplex;
		autoneg = adapter->hw.mac.autoneg;

		ndev_info(netdev, "offline testing starting\n");

		/* Link test performed before hardware reset so autoneg doesn't
		 * interfere with test result */
		if (e1000_link_test(adapter, &data[4]))
			eth_test->flags |= ETH_TEST_FL_FAILED;

		if (if_running)
			/* indicate we're in test mode */
			dev_close(netdev);
		else
			e1000e_reset(adapter);

		if (e1000_reg_test(adapter, &data[0]))
			eth_test->flags |= ETH_TEST_FL_FAILED;

		e1000e_reset(adapter);
		if (e1000_eeprom_test(adapter, &data[1]))
			eth_test->flags |= ETH_TEST_FL_FAILED;

		e1000e_reset(adapter);
		if (e1000_intr_test(adapter, &data[2]))
			eth_test->flags |= ETH_TEST_FL_FAILED;

		e1000e_reset(adapter);
		/* make sure the phy is powered up */
		e1000e_power_up_phy(adapter);
		if (e1000_loopback_test(adapter, &data[3]))
			eth_test->flags |= ETH_TEST_FL_FAILED;

		/* restore speed, duplex, autoneg settings */
		adapter->hw.phy.autoneg_advertised = autoneg_advertised;
		adapter->hw.mac.forced_speed_duplex = forced_speed_duplex;
		adapter->hw.mac.autoneg = autoneg;

		/* force this routine to wait until autoneg complete/timeout */
		adapter->hw.phy.wait_for_link = 1;
		e1000e_reset(adapter);
		adapter->hw.phy.wait_for_link = 0;

		clear_bit(__E1000_TESTING, &adapter->state);
		if (if_running)
			dev_open(netdev);
	} else {
		ndev_info(netdev, "online testing starting\n");
		/* Online tests */
		if (e1000_link_test(adapter, &data[4]))
			eth_test->flags |= ETH_TEST_FL_FAILED;

		/* Online tests aren't run; pass by default */
		data[0] = 0;
		data[1] = 0;
		data[2] = 0;
		data[3] = 0;

		clear_bit(__E1000_TESTING, &adapter->state);
	}
	msleep_interruptible(4 * 1000);
}

static void e1000_get_wol(struct net_device *netdev,
			  struct ethtool_wolinfo *wol)
{
	struct e1000_adapter *adapter = netdev_priv(netdev);

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

	if (!(adapter->flags & FLAG_HAS_WOL))
		return;

	wol->supported = WAKE_UCAST | WAKE_MCAST |
			 WAKE_BCAST | WAKE_MAGIC;

	/* apply any specific unsupported masks here */
	if (adapter->flags & FLAG_NO_WAKE_UCAST) {
		wol->supported &= ~WAKE_UCAST;

		if (adapter->wol & E1000_WUFC_EX)
			ndev_err(netdev, "Interface does not support "
				 "directed (unicast) frame wake-up packets\n");
	}

	if (adapter->wol & E1000_WUFC_EX)
		wol->wolopts |= WAKE_UCAST;
	if (adapter->wol & E1000_WUFC_MC)
		wol->wolopts |= WAKE_MCAST;
	if (adapter->wol & E1000_WUFC_BC)
		wol->wolopts |= WAKE_BCAST;
	if (adapter->wol & E1000_WUFC_MAG)
		wol->wolopts |= WAKE_MAGIC;
}

static int e1000_set_wol(struct net_device *netdev,
			 struct ethtool_wolinfo *wol)
{
	struct e1000_adapter *adapter = netdev_priv(netdev);

	if (wol->wolopts & (WAKE_PHY | WAKE_ARP | WAKE_MAGICSECURE))
		return -EOPNOTSUPP;

	if (!(adapter->flags & FLAG_HAS_WOL))
		return wol->wolopts ? -EOPNOTSUPP : 0;

	/* these settings will always override what we currently have */
	adapter->wol = 0;

	if (wol->wolopts & WAKE_UCAST)
		adapter->wol |= E1000_WUFC_EX;
	if (wol->wolopts & WAKE_MCAST)
		adapter->wol |= E1000_WUFC_MC;
	if (wol->wolopts & WAKE_BCAST)
		adapter->wol |= E1000_WUFC_BC;
	if (wol->wolopts & WAKE_MAGIC)
		adapter->wol |= E1000_WUFC_MAG;

	return 0;
}

/* toggle LED 4 times per second = 2 "blinks" per second */
#define E1000_ID_INTERVAL	(HZ/4)

/* bit defines for adapter->led_status */
#define E1000_LED_ON		0

static void e1000_led_blink_callback(unsigned long data)
{
	struct e1000_adapter *adapter = (struct e1000_adapter *) data;

	if (test_and_change_bit(E1000_LED_ON, &adapter->led_status))
		adapter->hw.mac.ops.led_off(&adapter->hw);
	else
		adapter->hw.mac.ops.led_on(&adapter->hw);

	mod_timer(&adapter->blink_timer, jiffies + E1000_ID_INTERVAL);
}

static int e1000_phys_id(struct net_device *netdev, u32 data)
{
	struct e1000_adapter *adapter = netdev_priv(netdev);

	if (!data)
		data = INT_MAX;

	if (adapter->hw.phy.type == e1000_phy_ife) {
		if (!adapter->blink_timer.function) {
			init_timer(&adapter->blink_timer);
			adapter->blink_timer.function =
				e1000_led_blink_callback;
			adapter->blink_timer.data = (unsigned long) adapter;
		}
		mod_timer(&adapter->blink_timer, jiffies);
		msleep_interruptible(data * 1000);
		del_timer_sync(&adapter->blink_timer);
		e1e_wphy(&adapter->hw,
				    IFE_PHY_SPECIAL_CONTROL_LED, 0);
	} else {
		e1000e_blink_led(&adapter->hw);
		msleep_interruptible(data * 1000);
	}

	adapter->hw.mac.ops.led_off(&adapter->hw);
	clear_bit(E1000_LED_ON, &adapter->led_status);
	adapter->hw.mac.ops.cleanup_led(&adapter->hw);

	return 0;
}

static int e1000_nway_reset(struct net_device *netdev)
{
	struct e1000_adapter *adapter = netdev_priv(netdev);
	if (netif_running(netdev))
		e1000e_reinit_locked(adapter);
	return 0;
}

static void e1000_get_ethtool_stats(struct net_device *netdev,
				    struct ethtool_stats *stats,
				    u64 *data)
{
	struct e1000_adapter *adapter = netdev_priv(netdev);
	int i;

	e1000e_update_stats(adapter);
	for (i = 0; i < E1000_GLOBAL_STATS_LEN; i++) {
		char *p = (char *)adapter+e1000_gstrings_stats[i].stat_offset;
		data[i] = (e1000_gstrings_stats[i].sizeof_stat ==
			sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
	}
}

static void e1000_get_strings(struct net_device *netdev, u32 stringset,
			      u8 *data)
{
	u8 *p = data;
	int i;

	switch (stringset) {
	case ETH_SS_TEST:
		memcpy(data, *e1000_gstrings_test,
			sizeof(e1000_gstrings_test));
		break;
	case ETH_SS_STATS:
		for (i = 0; i < E1000_GLOBAL_STATS_LEN; i++) {
			memcpy(p, e1000_gstrings_stats[i].stat_string,
			       ETH_GSTRING_LEN);
			p += ETH_GSTRING_LEN;
		}
		break;
	}
}

static const struct ethtool_ops e1000_ethtool_ops = {
	.get_settings		= e1000_get_settings,
	.set_settings		= e1000_set_settings,
	.get_drvinfo		= e1000_get_drvinfo,
	.get_regs_len		= e1000_get_regs_len,
	.get_regs		= e1000_get_regs,
	.get_wol		= e1000_get_wol,
	.set_wol		= e1000_set_wol,
	.get_msglevel		= e1000_get_msglevel,
	.set_msglevel		= e1000_set_msglevel,
	.nway_reset		= e1000_nway_reset,
	.get_link		= e1000_get_link,
	.get_eeprom_len		= e1000_get_eeprom_len,
	.get_eeprom		= e1000_get_eeprom,
	.set_eeprom		= e1000_set_eeprom,
	.get_ringparam		= e1000_get_ringparam,
	.set_ringparam		= e1000_set_ringparam,
	.get_pauseparam		= e1000_get_pauseparam,
	.set_pauseparam		= e1000_set_pauseparam,
	.get_rx_csum		= e1000_get_rx_csum,
	.set_rx_csum		= e1000_set_rx_csum,
	.get_tx_csum		= e1000_get_tx_csum,
	.set_tx_csum		= e1000_set_tx_csum,
	.get_sg			= ethtool_op_get_sg,
	.set_sg			= ethtool_op_set_sg,
	.get_tso		= ethtool_op_get_tso,
	.set_tso		= e1000_set_tso,
	.self_test		= e1000_diag_test,
	.get_strings		= e1000_get_strings,
	.phys_id		= e1000_phys_id,
	.get_ethtool_stats	= e1000_get_ethtool_stats,
	.get_sset_count		= e1000e_get_sset_count,
};

void e1000e_set_ethtool_ops(struct net_device *netdev)
{
	SET_ETHTOOL_OPS(netdev, &e1000_ethtool_ops);
}