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-rw-r--r--drivers/net/ethernet/intel/igc/igc_ethtool.c839
1 files changed, 835 insertions, 4 deletions
diff --git a/drivers/net/ethernet/intel/igc/igc_ethtool.c b/drivers/net/ethernet/intel/igc/igc_ethtool.c
index eff37a6c0afa..ac98f1d96892 100644
--- a/drivers/net/ethernet/intel/igc/igc_ethtool.c
+++ b/drivers/net/ethernet/intel/igc/igc_ethtool.c
@@ -2,10 +2,120 @@
2/* Copyright (c) 2018 Intel Corporation */ 2/* Copyright (c) 2018 Intel Corporation */
3 3
4/* ethtool support for igc */ 4/* ethtool support for igc */
5#include <linux/if_vlan.h>
5#include <linux/pm_runtime.h> 6#include <linux/pm_runtime.h>
6 7
7#include "igc.h" 8#include "igc.h"
8 9
10/* forward declaration */
11struct igc_stats {
12 char stat_string[ETH_GSTRING_LEN];
13 int sizeof_stat;
14 int stat_offset;
15};
16
17#define IGC_STAT(_name, _stat) { \
18 .stat_string = _name, \
19 .sizeof_stat = FIELD_SIZEOF(struct igc_adapter, _stat), \
20 .stat_offset = offsetof(struct igc_adapter, _stat) \
21}
22
23static const struct igc_stats igc_gstrings_stats[] = {
24 IGC_STAT("rx_packets", stats.gprc),
25 IGC_STAT("tx_packets", stats.gptc),
26 IGC_STAT("rx_bytes", stats.gorc),
27 IGC_STAT("tx_bytes", stats.gotc),
28 IGC_STAT("rx_broadcast", stats.bprc),
29 IGC_STAT("tx_broadcast", stats.bptc),
30 IGC_STAT("rx_multicast", stats.mprc),
31 IGC_STAT("tx_multicast", stats.mptc),
32 IGC_STAT("multicast", stats.mprc),
33 IGC_STAT("collisions", stats.colc),
34 IGC_STAT("rx_crc_errors", stats.crcerrs),
35 IGC_STAT("rx_no_buffer_count", stats.rnbc),
36 IGC_STAT("rx_missed_errors", stats.mpc),
37 IGC_STAT("tx_aborted_errors", stats.ecol),
38 IGC_STAT("tx_carrier_errors", stats.tncrs),
39 IGC_STAT("tx_window_errors", stats.latecol),
40 IGC_STAT("tx_abort_late_coll", stats.latecol),
41 IGC_STAT("tx_deferred_ok", stats.dc),
42 IGC_STAT("tx_single_coll_ok", stats.scc),
43 IGC_STAT("tx_multi_coll_ok", stats.mcc),
44 IGC_STAT("tx_timeout_count", tx_timeout_count),
45 IGC_STAT("rx_long_length_errors", stats.roc),
46 IGC_STAT("rx_short_length_errors", stats.ruc),
47 IGC_STAT("rx_align_errors", stats.algnerrc),
48 IGC_STAT("tx_tcp_seg_good", stats.tsctc),
49 IGC_STAT("tx_tcp_seg_failed", stats.tsctfc),
50 IGC_STAT("rx_flow_control_xon", stats.xonrxc),
51 IGC_STAT("rx_flow_control_xoff", stats.xoffrxc),
52 IGC_STAT("tx_flow_control_xon", stats.xontxc),
53 IGC_STAT("tx_flow_control_xoff", stats.xofftxc),
54 IGC_STAT("rx_long_byte_count", stats.gorc),
55 IGC_STAT("tx_dma_out_of_sync", stats.doosync),
56 IGC_STAT("tx_smbus", stats.mgptc),
57 IGC_STAT("rx_smbus", stats.mgprc),
58 IGC_STAT("dropped_smbus", stats.mgpdc),
59 IGC_STAT("os2bmc_rx_by_bmc", stats.o2bgptc),
60 IGC_STAT("os2bmc_tx_by_bmc", stats.b2ospc),
61 IGC_STAT("os2bmc_tx_by_host", stats.o2bspc),
62 IGC_STAT("os2bmc_rx_by_host", stats.b2ogprc),
63 IGC_STAT("tx_hwtstamp_timeouts", tx_hwtstamp_timeouts),
64 IGC_STAT("tx_hwtstamp_skipped", tx_hwtstamp_skipped),
65 IGC_STAT("rx_hwtstamp_cleared", rx_hwtstamp_cleared),
66};
67
68#define IGC_NETDEV_STAT(_net_stat) { \
69 .stat_string = __stringify(_net_stat), \
70 .sizeof_stat = FIELD_SIZEOF(struct rtnl_link_stats64, _net_stat), \
71 .stat_offset = offsetof(struct rtnl_link_stats64, _net_stat) \
72}
73
74static const struct igc_stats igc_gstrings_net_stats[] = {
75 IGC_NETDEV_STAT(rx_errors),
76 IGC_NETDEV_STAT(tx_errors),
77 IGC_NETDEV_STAT(tx_dropped),
78 IGC_NETDEV_STAT(rx_length_errors),
79 IGC_NETDEV_STAT(rx_over_errors),
80 IGC_NETDEV_STAT(rx_frame_errors),
81 IGC_NETDEV_STAT(rx_fifo_errors),
82 IGC_NETDEV_STAT(tx_fifo_errors),
83 IGC_NETDEV_STAT(tx_heartbeat_errors)
84};
85
86enum igc_diagnostics_results {
87 TEST_REG = 0,
88 TEST_EEP,
89 TEST_IRQ,
90 TEST_LOOP,
91 TEST_LINK
92};
93
94static const char igc_gstrings_test[][ETH_GSTRING_LEN] = {
95 [TEST_REG] = "Register test (offline)",
96 [TEST_EEP] = "Eeprom test (offline)",
97 [TEST_IRQ] = "Interrupt test (offline)",
98 [TEST_LOOP] = "Loopback test (offline)",
99 [TEST_LINK] = "Link test (on/offline)"
100};
101
102#define IGC_TEST_LEN (sizeof(igc_gstrings_test) / ETH_GSTRING_LEN)
103
104#define IGC_GLOBAL_STATS_LEN \
105 (sizeof(igc_gstrings_stats) / sizeof(struct igc_stats))
106#define IGC_NETDEV_STATS_LEN \
107 (sizeof(igc_gstrings_net_stats) / sizeof(struct igc_stats))
108#define IGC_RX_QUEUE_STATS_LEN \
109 (sizeof(struct igc_rx_queue_stats) / sizeof(u64))
110#define IGC_TX_QUEUE_STATS_LEN 3 /* packets, bytes, restart_queue */
111#define IGC_QUEUE_STATS_LEN \
112 ((((struct igc_adapter *)netdev_priv(netdev))->num_rx_queues * \
113 IGC_RX_QUEUE_STATS_LEN) + \
114 (((struct igc_adapter *)netdev_priv(netdev))->num_tx_queues * \
115 IGC_TX_QUEUE_STATS_LEN))
116#define IGC_STATS_LEN \
117 (IGC_GLOBAL_STATS_LEN + IGC_NETDEV_STATS_LEN + IGC_QUEUE_STATS_LEN)
118
9static const char igc_priv_flags_strings[][ETH_GSTRING_LEN] = { 119static const char igc_priv_flags_strings[][ETH_GSTRING_LEN] = {
10#define IGC_PRIV_FLAGS_LEGACY_RX BIT(0) 120#define IGC_PRIV_FLAGS_LEGACY_RX BIT(0)
11 "legacy-rx", 121 "legacy-rx",
@@ -545,6 +655,127 @@ static int igc_set_pauseparam(struct net_device *netdev,
545 return retval; 655 return retval;
546} 656}
547 657
658static void igc_get_strings(struct net_device *netdev, u32 stringset, u8 *data)
659{
660 struct igc_adapter *adapter = netdev_priv(netdev);
661 u8 *p = data;
662 int i;
663
664 switch (stringset) {
665 case ETH_SS_TEST:
666 memcpy(data, *igc_gstrings_test,
667 IGC_TEST_LEN * ETH_GSTRING_LEN);
668 break;
669 case ETH_SS_STATS:
670 for (i = 0; i < IGC_GLOBAL_STATS_LEN; i++) {
671 memcpy(p, igc_gstrings_stats[i].stat_string,
672 ETH_GSTRING_LEN);
673 p += ETH_GSTRING_LEN;
674 }
675 for (i = 0; i < IGC_NETDEV_STATS_LEN; i++) {
676 memcpy(p, igc_gstrings_net_stats[i].stat_string,
677 ETH_GSTRING_LEN);
678 p += ETH_GSTRING_LEN;
679 }
680 for (i = 0; i < adapter->num_tx_queues; i++) {
681 sprintf(p, "tx_queue_%u_packets", i);
682 p += ETH_GSTRING_LEN;
683 sprintf(p, "tx_queue_%u_bytes", i);
684 p += ETH_GSTRING_LEN;
685 sprintf(p, "tx_queue_%u_restart", i);
686 p += ETH_GSTRING_LEN;
687 }
688 for (i = 0; i < adapter->num_rx_queues; i++) {
689 sprintf(p, "rx_queue_%u_packets", i);
690 p += ETH_GSTRING_LEN;
691 sprintf(p, "rx_queue_%u_bytes", i);
692 p += ETH_GSTRING_LEN;
693 sprintf(p, "rx_queue_%u_drops", i);
694 p += ETH_GSTRING_LEN;
695 sprintf(p, "rx_queue_%u_csum_err", i);
696 p += ETH_GSTRING_LEN;
697 sprintf(p, "rx_queue_%u_alloc_failed", i);
698 p += ETH_GSTRING_LEN;
699 }
700 /* BUG_ON(p - data != IGC_STATS_LEN * ETH_GSTRING_LEN); */
701 break;
702 case ETH_SS_PRIV_FLAGS:
703 memcpy(data, igc_priv_flags_strings,
704 IGC_PRIV_FLAGS_STR_LEN * ETH_GSTRING_LEN);
705 break;
706 }
707}
708
709static int igc_get_sset_count(struct net_device *netdev, int sset)
710{
711 switch (sset) {
712 case ETH_SS_STATS:
713 return IGC_STATS_LEN;
714 case ETH_SS_TEST:
715 return IGC_TEST_LEN;
716 case ETH_SS_PRIV_FLAGS:
717 return IGC_PRIV_FLAGS_STR_LEN;
718 default:
719 return -ENOTSUPP;
720 }
721}
722
723static void igc_get_ethtool_stats(struct net_device *netdev,
724 struct ethtool_stats *stats, u64 *data)
725{
726 struct igc_adapter *adapter = netdev_priv(netdev);
727 struct rtnl_link_stats64 *net_stats = &adapter->stats64;
728 unsigned int start;
729 struct igc_ring *ring;
730 int i, j;
731 char *p;
732
733 spin_lock(&adapter->stats64_lock);
734 igc_update_stats(adapter);
735
736 for (i = 0; i < IGC_GLOBAL_STATS_LEN; i++) {
737 p = (char *)adapter + igc_gstrings_stats[i].stat_offset;
738 data[i] = (igc_gstrings_stats[i].sizeof_stat ==
739 sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
740 }
741 for (j = 0; j < IGC_NETDEV_STATS_LEN; j++, i++) {
742 p = (char *)net_stats + igc_gstrings_net_stats[j].stat_offset;
743 data[i] = (igc_gstrings_net_stats[j].sizeof_stat ==
744 sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
745 }
746 for (j = 0; j < adapter->num_tx_queues; j++) {
747 u64 restart2;
748
749 ring = adapter->tx_ring[j];
750 do {
751 start = u64_stats_fetch_begin_irq(&ring->tx_syncp);
752 data[i] = ring->tx_stats.packets;
753 data[i + 1] = ring->tx_stats.bytes;
754 data[i + 2] = ring->tx_stats.restart_queue;
755 } while (u64_stats_fetch_retry_irq(&ring->tx_syncp, start));
756 do {
757 start = u64_stats_fetch_begin_irq(&ring->tx_syncp2);
758 restart2 = ring->tx_stats.restart_queue2;
759 } while (u64_stats_fetch_retry_irq(&ring->tx_syncp2, start));
760 data[i + 2] += restart2;
761
762 i += IGC_TX_QUEUE_STATS_LEN;
763 }
764 for (j = 0; j < adapter->num_rx_queues; j++) {
765 ring = adapter->rx_ring[j];
766 do {
767 start = u64_stats_fetch_begin_irq(&ring->rx_syncp);
768 data[i] = ring->rx_stats.packets;
769 data[i + 1] = ring->rx_stats.bytes;
770 data[i + 2] = ring->rx_stats.drops;
771 data[i + 3] = ring->rx_stats.csum_err;
772 data[i + 4] = ring->rx_stats.alloc_failed;
773 } while (u64_stats_fetch_retry_irq(&ring->rx_syncp, start));
774 i += IGC_RX_QUEUE_STATS_LEN;
775 }
776 spin_unlock(&adapter->stats64_lock);
777}
778
548static int igc_get_coalesce(struct net_device *netdev, 779static int igc_get_coalesce(struct net_device *netdev,
549 struct ethtool_coalesce *ec) 780 struct ethtool_coalesce *ec)
550{ 781{
@@ -643,6 +874,605 @@ static int igc_set_coalesce(struct net_device *netdev,
643 return 0; 874 return 0;
644} 875}
645 876
877#define ETHER_TYPE_FULL_MASK ((__force __be16)~0)
878static int igc_get_ethtool_nfc_entry(struct igc_adapter *adapter,
879 struct ethtool_rxnfc *cmd)
880{
881 struct ethtool_rx_flow_spec *fsp = &cmd->fs;
882 struct igc_nfc_filter *rule = NULL;
883
884 /* report total rule count */
885 cmd->data = IGC_MAX_RXNFC_FILTERS;
886
887 hlist_for_each_entry(rule, &adapter->nfc_filter_list, nfc_node) {
888 if (fsp->location <= rule->sw_idx)
889 break;
890 }
891
892 if (!rule || fsp->location != rule->sw_idx)
893 return -EINVAL;
894
895 if (rule->filter.match_flags) {
896 fsp->flow_type = ETHER_FLOW;
897 fsp->ring_cookie = rule->action;
898 if (rule->filter.match_flags & IGC_FILTER_FLAG_ETHER_TYPE) {
899 fsp->h_u.ether_spec.h_proto = rule->filter.etype;
900 fsp->m_u.ether_spec.h_proto = ETHER_TYPE_FULL_MASK;
901 }
902 if (rule->filter.match_flags & IGC_FILTER_FLAG_VLAN_TCI) {
903 fsp->flow_type |= FLOW_EXT;
904 fsp->h_ext.vlan_tci = rule->filter.vlan_tci;
905 fsp->m_ext.vlan_tci = htons(VLAN_PRIO_MASK);
906 }
907 if (rule->filter.match_flags & IGC_FILTER_FLAG_DST_MAC_ADDR) {
908 ether_addr_copy(fsp->h_u.ether_spec.h_dest,
909 rule->filter.dst_addr);
910 /* As we only support matching by the full
911 * mask, return the mask to userspace
912 */
913 eth_broadcast_addr(fsp->m_u.ether_spec.h_dest);
914 }
915 if (rule->filter.match_flags & IGC_FILTER_FLAG_SRC_MAC_ADDR) {
916 ether_addr_copy(fsp->h_u.ether_spec.h_source,
917 rule->filter.src_addr);
918 /* As we only support matching by the full
919 * mask, return the mask to userspace
920 */
921 eth_broadcast_addr(fsp->m_u.ether_spec.h_source);
922 }
923
924 return 0;
925 }
926 return -EINVAL;
927}
928
929static int igc_get_ethtool_nfc_all(struct igc_adapter *adapter,
930 struct ethtool_rxnfc *cmd,
931 u32 *rule_locs)
932{
933 struct igc_nfc_filter *rule;
934 int cnt = 0;
935
936 /* report total rule count */
937 cmd->data = IGC_MAX_RXNFC_FILTERS;
938
939 hlist_for_each_entry(rule, &adapter->nfc_filter_list, nfc_node) {
940 if (cnt == cmd->rule_cnt)
941 return -EMSGSIZE;
942 rule_locs[cnt] = rule->sw_idx;
943 cnt++;
944 }
945
946 cmd->rule_cnt = cnt;
947
948 return 0;
949}
950
951static int igc_get_rss_hash_opts(struct igc_adapter *adapter,
952 struct ethtool_rxnfc *cmd)
953{
954 cmd->data = 0;
955
956 /* Report default options for RSS on igc */
957 switch (cmd->flow_type) {
958 case TCP_V4_FLOW:
959 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
960 /* Fall through */
961 case UDP_V4_FLOW:
962 if (adapter->flags & IGC_FLAG_RSS_FIELD_IPV4_UDP)
963 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
964 /* Fall through */
965 case SCTP_V4_FLOW:
966 /* Fall through */
967 case AH_ESP_V4_FLOW:
968 /* Fall through */
969 case AH_V4_FLOW:
970 /* Fall through */
971 case ESP_V4_FLOW:
972 /* Fall through */
973 case IPV4_FLOW:
974 cmd->data |= RXH_IP_SRC | RXH_IP_DST;
975 break;
976 case TCP_V6_FLOW:
977 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
978 /* Fall through */
979 case UDP_V6_FLOW:
980 if (adapter->flags & IGC_FLAG_RSS_FIELD_IPV6_UDP)
981 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
982 /* Fall through */
983 case SCTP_V6_FLOW:
984 /* Fall through */
985 case AH_ESP_V6_FLOW:
986 /* Fall through */
987 case AH_V6_FLOW:
988 /* Fall through */
989 case ESP_V6_FLOW:
990 /* Fall through */
991 case IPV6_FLOW:
992 cmd->data |= RXH_IP_SRC | RXH_IP_DST;
993 break;
994 default:
995 return -EINVAL;
996 }
997
998 return 0;
999}
1000
1001static int igc_get_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd,
1002 u32 *rule_locs)
1003{
1004 struct igc_adapter *adapter = netdev_priv(dev);
1005 int ret = -EOPNOTSUPP;
1006
1007 switch (cmd->cmd) {
1008 case ETHTOOL_GRXRINGS:
1009 cmd->data = adapter->num_rx_queues;
1010 ret = 0;
1011 break;
1012 case ETHTOOL_GRXCLSRLCNT:
1013 cmd->rule_cnt = adapter->nfc_filter_count;
1014 ret = 0;
1015 break;
1016 case ETHTOOL_GRXCLSRULE:
1017 ret = igc_get_ethtool_nfc_entry(adapter, cmd);
1018 break;
1019 case ETHTOOL_GRXCLSRLALL:
1020 ret = igc_get_ethtool_nfc_all(adapter, cmd, rule_locs);
1021 break;
1022 case ETHTOOL_GRXFH:
1023 ret = igc_get_rss_hash_opts(adapter, cmd);
1024 break;
1025 default:
1026 break;
1027 }
1028
1029 return ret;
1030}
1031
1032#define UDP_RSS_FLAGS (IGC_FLAG_RSS_FIELD_IPV4_UDP | \
1033 IGC_FLAG_RSS_FIELD_IPV6_UDP)
1034static int igc_set_rss_hash_opt(struct igc_adapter *adapter,
1035 struct ethtool_rxnfc *nfc)
1036{
1037 u32 flags = adapter->flags;
1038
1039 /* RSS does not support anything other than hashing
1040 * to queues on src and dst IPs and ports
1041 */
1042 if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST |
1043 RXH_L4_B_0_1 | RXH_L4_B_2_3))
1044 return -EINVAL;
1045
1046 switch (nfc->flow_type) {
1047 case TCP_V4_FLOW:
1048 case TCP_V6_FLOW:
1049 if (!(nfc->data & RXH_IP_SRC) ||
1050 !(nfc->data & RXH_IP_DST) ||
1051 !(nfc->data & RXH_L4_B_0_1) ||
1052 !(nfc->data & RXH_L4_B_2_3))
1053 return -EINVAL;
1054 break;
1055 case UDP_V4_FLOW:
1056 if (!(nfc->data & RXH_IP_SRC) ||
1057 !(nfc->data & RXH_IP_DST))
1058 return -EINVAL;
1059 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
1060 case 0:
1061 flags &= ~IGC_FLAG_RSS_FIELD_IPV4_UDP;
1062 break;
1063 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
1064 flags |= IGC_FLAG_RSS_FIELD_IPV4_UDP;
1065 break;
1066 default:
1067 return -EINVAL;
1068 }
1069 break;
1070 case UDP_V6_FLOW:
1071 if (!(nfc->data & RXH_IP_SRC) ||
1072 !(nfc->data & RXH_IP_DST))
1073 return -EINVAL;
1074 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
1075 case 0:
1076 flags &= ~IGC_FLAG_RSS_FIELD_IPV6_UDP;
1077 break;
1078 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
1079 flags |= IGC_FLAG_RSS_FIELD_IPV6_UDP;
1080 break;
1081 default:
1082 return -EINVAL;
1083 }
1084 break;
1085 case AH_ESP_V4_FLOW:
1086 case AH_V4_FLOW:
1087 case ESP_V4_FLOW:
1088 case SCTP_V4_FLOW:
1089 case AH_ESP_V6_FLOW:
1090 case AH_V6_FLOW:
1091 case ESP_V6_FLOW:
1092 case SCTP_V6_FLOW:
1093 if (!(nfc->data & RXH_IP_SRC) ||
1094 !(nfc->data & RXH_IP_DST) ||
1095 (nfc->data & RXH_L4_B_0_1) ||
1096 (nfc->data & RXH_L4_B_2_3))
1097 return -EINVAL;
1098 break;
1099 default:
1100 return -EINVAL;
1101 }
1102
1103 /* if we changed something we need to update flags */
1104 if (flags != adapter->flags) {
1105 struct igc_hw *hw = &adapter->hw;
1106 u32 mrqc = rd32(IGC_MRQC);
1107
1108 if ((flags & UDP_RSS_FLAGS) &&
1109 !(adapter->flags & UDP_RSS_FLAGS))
1110 dev_err(&adapter->pdev->dev,
1111 "enabling UDP RSS: fragmented packets may arrive out of order to the stack above\n");
1112
1113 adapter->flags = flags;
1114
1115 /* Perform hash on these packet types */
1116 mrqc |= IGC_MRQC_RSS_FIELD_IPV4 |
1117 IGC_MRQC_RSS_FIELD_IPV4_TCP |
1118 IGC_MRQC_RSS_FIELD_IPV6 |
1119 IGC_MRQC_RSS_FIELD_IPV6_TCP;
1120
1121 mrqc &= ~(IGC_MRQC_RSS_FIELD_IPV4_UDP |
1122 IGC_MRQC_RSS_FIELD_IPV6_UDP);
1123
1124 if (flags & IGC_FLAG_RSS_FIELD_IPV4_UDP)
1125 mrqc |= IGC_MRQC_RSS_FIELD_IPV4_UDP;
1126
1127 if (flags & IGC_FLAG_RSS_FIELD_IPV6_UDP)
1128 mrqc |= IGC_MRQC_RSS_FIELD_IPV6_UDP;
1129
1130 wr32(IGC_MRQC, mrqc);
1131 }
1132
1133 return 0;
1134}
1135
1136static int igc_rxnfc_write_etype_filter(struct igc_adapter *adapter,
1137 struct igc_nfc_filter *input)
1138{
1139 struct igc_hw *hw = &adapter->hw;
1140 u8 i;
1141 u32 etqf;
1142 u16 etype;
1143
1144 /* find an empty etype filter register */
1145 for (i = 0; i < MAX_ETYPE_FILTER; ++i) {
1146 if (!adapter->etype_bitmap[i])
1147 break;
1148 }
1149 if (i == MAX_ETYPE_FILTER) {
1150 dev_err(&adapter->pdev->dev, "ethtool -N: etype filters are all used.\n");
1151 return -EINVAL;
1152 }
1153
1154 adapter->etype_bitmap[i] = true;
1155
1156 etqf = rd32(IGC_ETQF(i));
1157 etype = ntohs(input->filter.etype & ETHER_TYPE_FULL_MASK);
1158
1159 etqf |= IGC_ETQF_FILTER_ENABLE;
1160 etqf &= ~IGC_ETQF_ETYPE_MASK;
1161 etqf |= (etype & IGC_ETQF_ETYPE_MASK);
1162
1163 etqf &= ~IGC_ETQF_QUEUE_MASK;
1164 etqf |= ((input->action << IGC_ETQF_QUEUE_SHIFT)
1165 & IGC_ETQF_QUEUE_MASK);
1166 etqf |= IGC_ETQF_QUEUE_ENABLE;
1167
1168 wr32(IGC_ETQF(i), etqf);
1169
1170 input->etype_reg_index = i;
1171
1172 return 0;
1173}
1174
1175static int igc_rxnfc_write_vlan_prio_filter(struct igc_adapter *adapter,
1176 struct igc_nfc_filter *input)
1177{
1178 struct igc_hw *hw = &adapter->hw;
1179 u8 vlan_priority;
1180 u16 queue_index;
1181 u32 vlapqf;
1182
1183 vlapqf = rd32(IGC_VLAPQF);
1184 vlan_priority = (ntohs(input->filter.vlan_tci) & VLAN_PRIO_MASK)
1185 >> VLAN_PRIO_SHIFT;
1186 queue_index = (vlapqf >> (vlan_priority * 4)) & IGC_VLAPQF_QUEUE_MASK;
1187
1188 /* check whether this vlan prio is already set */
1189 if (vlapqf & IGC_VLAPQF_P_VALID(vlan_priority) &&
1190 queue_index != input->action) {
1191 dev_err(&adapter->pdev->dev, "ethtool rxnfc set vlan prio filter failed.\n");
1192 return -EEXIST;
1193 }
1194
1195 vlapqf |= IGC_VLAPQF_P_VALID(vlan_priority);
1196 vlapqf |= IGC_VLAPQF_QUEUE_SEL(vlan_priority, input->action);
1197
1198 wr32(IGC_VLAPQF, vlapqf);
1199
1200 return 0;
1201}
1202
1203int igc_add_filter(struct igc_adapter *adapter, struct igc_nfc_filter *input)
1204{
1205 struct igc_hw *hw = &adapter->hw;
1206 int err = -EINVAL;
1207
1208 if (hw->mac.type == igc_i225 &&
1209 !(input->filter.match_flags & ~IGC_FILTER_FLAG_SRC_MAC_ADDR)) {
1210 dev_err(&adapter->pdev->dev,
1211 "i225 doesn't support flow classification rules specifying only source addresses.\n");
1212 return -EOPNOTSUPP;
1213 }
1214
1215 if (input->filter.match_flags & IGC_FILTER_FLAG_ETHER_TYPE) {
1216 err = igc_rxnfc_write_etype_filter(adapter, input);
1217 if (err)
1218 return err;
1219 }
1220
1221 if (input->filter.match_flags & IGC_FILTER_FLAG_DST_MAC_ADDR) {
1222 err = igc_add_mac_steering_filter(adapter,
1223 input->filter.dst_addr,
1224 input->action, 0);
1225 err = min_t(int, err, 0);
1226 if (err)
1227 return err;
1228 }
1229
1230 if (input->filter.match_flags & IGC_FILTER_FLAG_SRC_MAC_ADDR) {
1231 err = igc_add_mac_steering_filter(adapter,
1232 input->filter.src_addr,
1233 input->action,
1234 IGC_MAC_STATE_SRC_ADDR);
1235 err = min_t(int, err, 0);
1236 if (err)
1237 return err;
1238 }
1239
1240 if (input->filter.match_flags & IGC_FILTER_FLAG_VLAN_TCI)
1241 err = igc_rxnfc_write_vlan_prio_filter(adapter, input);
1242
1243 return err;
1244}
1245
1246static void igc_clear_etype_filter_regs(struct igc_adapter *adapter,
1247 u16 reg_index)
1248{
1249 struct igc_hw *hw = &adapter->hw;
1250 u32 etqf = rd32(IGC_ETQF(reg_index));
1251
1252 etqf &= ~IGC_ETQF_QUEUE_ENABLE;
1253 etqf &= ~IGC_ETQF_QUEUE_MASK;
1254 etqf &= ~IGC_ETQF_FILTER_ENABLE;
1255
1256 wr32(IGC_ETQF(reg_index), etqf);
1257
1258 adapter->etype_bitmap[reg_index] = false;
1259}
1260
1261static void igc_clear_vlan_prio_filter(struct igc_adapter *adapter,
1262 u16 vlan_tci)
1263{
1264 struct igc_hw *hw = &adapter->hw;
1265 u8 vlan_priority;
1266 u32 vlapqf;
1267
1268 vlan_priority = (vlan_tci & VLAN_PRIO_MASK) >> VLAN_PRIO_SHIFT;
1269
1270 vlapqf = rd32(IGC_VLAPQF);
1271 vlapqf &= ~IGC_VLAPQF_P_VALID(vlan_priority);
1272 vlapqf &= ~IGC_VLAPQF_QUEUE_SEL(vlan_priority,
1273 IGC_VLAPQF_QUEUE_MASK);
1274
1275 wr32(IGC_VLAPQF, vlapqf);
1276}
1277
1278int igc_erase_filter(struct igc_adapter *adapter, struct igc_nfc_filter *input)
1279{
1280 if (input->filter.match_flags & IGC_FILTER_FLAG_ETHER_TYPE)
1281 igc_clear_etype_filter_regs(adapter,
1282 input->etype_reg_index);
1283
1284 if (input->filter.match_flags & IGC_FILTER_FLAG_VLAN_TCI)
1285 igc_clear_vlan_prio_filter(adapter,
1286 ntohs(input->filter.vlan_tci));
1287
1288 if (input->filter.match_flags & IGC_FILTER_FLAG_SRC_MAC_ADDR)
1289 igc_del_mac_steering_filter(adapter, input->filter.src_addr,
1290 input->action,
1291 IGC_MAC_STATE_SRC_ADDR);
1292
1293 if (input->filter.match_flags & IGC_FILTER_FLAG_DST_MAC_ADDR)
1294 igc_del_mac_steering_filter(adapter, input->filter.dst_addr,
1295 input->action, 0);
1296
1297 return 0;
1298}
1299
1300static int igc_update_ethtool_nfc_entry(struct igc_adapter *adapter,
1301 struct igc_nfc_filter *input,
1302 u16 sw_idx)
1303{
1304 struct igc_nfc_filter *rule, *parent;
1305 int err = -EINVAL;
1306
1307 parent = NULL;
1308 rule = NULL;
1309
1310 hlist_for_each_entry(rule, &adapter->nfc_filter_list, nfc_node) {
1311 /* hash found, or no matching entry */
1312 if (rule->sw_idx >= sw_idx)
1313 break;
1314 parent = rule;
1315 }
1316
1317 /* if there is an old rule occupying our place remove it */
1318 if (rule && rule->sw_idx == sw_idx) {
1319 if (!input)
1320 err = igc_erase_filter(adapter, rule);
1321
1322 hlist_del(&rule->nfc_node);
1323 kfree(rule);
1324 adapter->nfc_filter_count--;
1325 }
1326
1327 /* If no input this was a delete, err should be 0 if a rule was
1328 * successfully found and removed from the list else -EINVAL
1329 */
1330 if (!input)
1331 return err;
1332
1333 /* initialize node */
1334 INIT_HLIST_NODE(&input->nfc_node);
1335
1336 /* add filter to the list */
1337 if (parent)
1338 hlist_add_behind(&input->nfc_node, &parent->nfc_node);
1339 else
1340 hlist_add_head(&input->nfc_node, &adapter->nfc_filter_list);
1341
1342 /* update counts */
1343 adapter->nfc_filter_count++;
1344
1345 return 0;
1346}
1347
1348static int igc_add_ethtool_nfc_entry(struct igc_adapter *adapter,
1349 struct ethtool_rxnfc *cmd)
1350{
1351 struct net_device *netdev = adapter->netdev;
1352 struct ethtool_rx_flow_spec *fsp =
1353 (struct ethtool_rx_flow_spec *)&cmd->fs;
1354 struct igc_nfc_filter *input, *rule;
1355 int err = 0;
1356
1357 if (!(netdev->hw_features & NETIF_F_NTUPLE))
1358 return -EOPNOTSUPP;
1359
1360 /* Don't allow programming if the action is a queue greater than
1361 * the number of online Rx queues.
1362 */
1363 if (fsp->ring_cookie == RX_CLS_FLOW_DISC ||
1364 fsp->ring_cookie >= adapter->num_rx_queues) {
1365 dev_err(&adapter->pdev->dev, "ethtool -N: The specified action is invalid\n");
1366 return -EINVAL;
1367 }
1368
1369 /* Don't allow indexes to exist outside of available space */
1370 if (fsp->location >= IGC_MAX_RXNFC_FILTERS) {
1371 dev_err(&adapter->pdev->dev, "Location out of range\n");
1372 return -EINVAL;
1373 }
1374
1375 if ((fsp->flow_type & ~FLOW_EXT) != ETHER_FLOW)
1376 return -EINVAL;
1377
1378 input = kzalloc(sizeof(*input), GFP_KERNEL);
1379 if (!input)
1380 return -ENOMEM;
1381
1382 if (fsp->m_u.ether_spec.h_proto == ETHER_TYPE_FULL_MASK) {
1383 input->filter.etype = fsp->h_u.ether_spec.h_proto;
1384 input->filter.match_flags = IGC_FILTER_FLAG_ETHER_TYPE;
1385 }
1386
1387 /* Only support matching addresses by the full mask */
1388 if (is_broadcast_ether_addr(fsp->m_u.ether_spec.h_source)) {
1389 input->filter.match_flags |= IGC_FILTER_FLAG_SRC_MAC_ADDR;
1390 ether_addr_copy(input->filter.src_addr,
1391 fsp->h_u.ether_spec.h_source);
1392 }
1393
1394 /* Only support matching addresses by the full mask */
1395 if (is_broadcast_ether_addr(fsp->m_u.ether_spec.h_dest)) {
1396 input->filter.match_flags |= IGC_FILTER_FLAG_DST_MAC_ADDR;
1397 ether_addr_copy(input->filter.dst_addr,
1398 fsp->h_u.ether_spec.h_dest);
1399 }
1400
1401 if ((fsp->flow_type & FLOW_EXT) && fsp->m_ext.vlan_tci) {
1402 if (fsp->m_ext.vlan_tci != htons(VLAN_PRIO_MASK)) {
1403 err = -EINVAL;
1404 goto err_out;
1405 }
1406 input->filter.vlan_tci = fsp->h_ext.vlan_tci;
1407 input->filter.match_flags |= IGC_FILTER_FLAG_VLAN_TCI;
1408 }
1409
1410 input->action = fsp->ring_cookie;
1411 input->sw_idx = fsp->location;
1412
1413 spin_lock(&adapter->nfc_lock);
1414
1415 hlist_for_each_entry(rule, &adapter->nfc_filter_list, nfc_node) {
1416 if (!memcmp(&input->filter, &rule->filter,
1417 sizeof(input->filter))) {
1418 err = -EEXIST;
1419 dev_err(&adapter->pdev->dev,
1420 "ethtool: this filter is already set\n");
1421 goto err_out_w_lock;
1422 }
1423 }
1424
1425 err = igc_add_filter(adapter, input);
1426 if (err)
1427 goto err_out_w_lock;
1428
1429 igc_update_ethtool_nfc_entry(adapter, input, input->sw_idx);
1430
1431 spin_unlock(&adapter->nfc_lock);
1432 return 0;
1433
1434err_out_w_lock:
1435 spin_unlock(&adapter->nfc_lock);
1436err_out:
1437 kfree(input);
1438 return err;
1439}
1440
1441static int igc_del_ethtool_nfc_entry(struct igc_adapter *adapter,
1442 struct ethtool_rxnfc *cmd)
1443{
1444 struct ethtool_rx_flow_spec *fsp =
1445 (struct ethtool_rx_flow_spec *)&cmd->fs;
1446 int err;
1447
1448 spin_lock(&adapter->nfc_lock);
1449 err = igc_update_ethtool_nfc_entry(adapter, NULL, fsp->location);
1450 spin_unlock(&adapter->nfc_lock);
1451
1452 return err;
1453}
1454
1455static int igc_set_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd)
1456{
1457 struct igc_adapter *adapter = netdev_priv(dev);
1458 int ret = -EOPNOTSUPP;
1459
1460 switch (cmd->cmd) {
1461 case ETHTOOL_SRXFH:
1462 ret = igc_set_rss_hash_opt(adapter, cmd);
1463 break;
1464 case ETHTOOL_SRXCLSRLINS:
1465 ret = igc_add_ethtool_nfc_entry(adapter, cmd);
1466 break;
1467 case ETHTOOL_SRXCLSRLDEL:
1468 ret = igc_del_ethtool_nfc_entry(adapter, cmd);
1469 default:
1470 break;
1471 }
1472
1473 return ret;
1474}
1475
646void igc_write_rss_indir_tbl(struct igc_adapter *adapter) 1476void igc_write_rss_indir_tbl(struct igc_adapter *adapter)
647{ 1477{
648 struct igc_hw *hw = &adapter->hw; 1478 struct igc_hw *hw = &adapter->hw;
@@ -885,17 +1715,13 @@ static int igc_get_link_ksettings(struct net_device *netdev,
885 if (hw->mac.type == igc_i225 && 1715 if (hw->mac.type == igc_i225 &&
886 (status & IGC_STATUS_SPEED_2500)) { 1716 (status & IGC_STATUS_SPEED_2500)) {
887 speed = SPEED_2500; 1717 speed = SPEED_2500;
888 hw_dbg("2500 Mbs, ");
889 } else { 1718 } else {
890 speed = SPEED_1000; 1719 speed = SPEED_1000;
891 hw_dbg("1000 Mbs, ");
892 } 1720 }
893 } else if (status & IGC_STATUS_SPEED_100) { 1721 } else if (status & IGC_STATUS_SPEED_100) {
894 speed = SPEED_100; 1722 speed = SPEED_100;
895 hw_dbg("100 Mbs, ");
896 } else { 1723 } else {
897 speed = SPEED_10; 1724 speed = SPEED_10;
898 hw_dbg("10 Mbs, ");
899 } 1725 }
900 if ((status & IGC_STATUS_FD) || 1726 if ((status & IGC_STATUS_FD) ||
901 hw->phy.media_type != igc_media_type_copper) 1727 hw->phy.media_type != igc_media_type_copper)
@@ -1011,8 +1837,13 @@ static const struct ethtool_ops igc_ethtool_ops = {
1011 .set_ringparam = igc_set_ringparam, 1837 .set_ringparam = igc_set_ringparam,
1012 .get_pauseparam = igc_get_pauseparam, 1838 .get_pauseparam = igc_get_pauseparam,
1013 .set_pauseparam = igc_set_pauseparam, 1839 .set_pauseparam = igc_set_pauseparam,
1840 .get_strings = igc_get_strings,
1841 .get_sset_count = igc_get_sset_count,
1842 .get_ethtool_stats = igc_get_ethtool_stats,
1014 .get_coalesce = igc_get_coalesce, 1843 .get_coalesce = igc_get_coalesce,
1015 .set_coalesce = igc_set_coalesce, 1844 .set_coalesce = igc_set_coalesce,
1845 .get_rxnfc = igc_get_rxnfc,
1846 .set_rxnfc = igc_set_rxnfc,
1016 .get_rxfh_indir_size = igc_get_rxfh_indir_size, 1847 .get_rxfh_indir_size = igc_get_rxfh_indir_size,
1017 .get_rxfh = igc_get_rxfh, 1848 .get_rxfh = igc_get_rxfh,
1018 .set_rxfh = igc_set_rxfh, 1849 .set_rxfh = igc_set_rxfh,
generated by cgit v1.2.2 (git 2.25.0) at 2025-12-29 17:29:35 -0500