net/ethtool/common.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2
   3 #include <linux/ethtool_netlink.h>
   4 #include <linux/net_tstamp.h>
   5 #include <linux/phy.h>
   6 #include <linux/rtnetlink.h>
   7
   8 #include "common.h"
   9
  10 const char netdev_features_strings[NETDEV_FEATURE_COUNT][ETH_GSTRING_LEN] = {
  11         [NETIF_F_SG_BIT] =               "tx-scatter-gather",
  12         [NETIF_F_IP_CSUM_BIT] =          "tx-checksum-ipv4",
  13         [NETIF_F_HW_CSUM_BIT] =          "tx-checksum-ip-generic",
  14         [NETIF_F_IPV6_CSUM_BIT] =        "tx-checksum-ipv6",
  15         [NETIF_F_HIGHDMA_BIT] =          "highdma",
  16         [NETIF_F_FRAGLIST_BIT] =         "tx-scatter-gather-fraglist",
  17         [NETIF_F_HW_VLAN_CTAG_TX_BIT] =  "tx-vlan-hw-insert",
  18
  19         [NETIF_F_HW_VLAN_CTAG_RX_BIT] =  "rx-vlan-hw-parse",
  20         [NETIF_F_HW_VLAN_CTAG_FILTER_BIT] = "rx-vlan-filter",
  21         [NETIF_F_HW_VLAN_STAG_TX_BIT] =  "tx-vlan-stag-hw-insert",
  22         [NETIF_F_HW_VLAN_STAG_RX_BIT] =  "rx-vlan-stag-hw-parse",
  23         [NETIF_F_HW_VLAN_STAG_FILTER_BIT] = "rx-vlan-stag-filter",
  24         [NETIF_F_VLAN_CHALLENGED_BIT] =  "vlan-challenged",
  25         [NETIF_F_GSO_BIT] =              "tx-generic-segmentation",
  26         [NETIF_F_LLTX_BIT] =             "tx-lockless",
  27         [NETIF_F_NETNS_LOCAL_BIT] =      "netns-local",
  28         [NETIF_F_GRO_BIT] =              "rx-gro",
  29         [NETIF_F_GRO_HW_BIT] =           "rx-gro-hw",
  30         [NETIF_F_LRO_BIT] =              "rx-lro",
  31
  32         [NETIF_F_TSO_BIT] =              "tx-tcp-segmentation",
  33         [NETIF_F_GSO_ROBUST_BIT] =       "tx-gso-robust",
  34         [NETIF_F_TSO_ECN_BIT] =          "tx-tcp-ecn-segmentation",
  35         [NETIF_F_TSO_MANGLEID_BIT] =     "tx-tcp-mangleid-segmentation",
  36         [NETIF_F_TSO6_BIT] =             "tx-tcp6-segmentation",
  37         [NETIF_F_FSO_BIT] =              "tx-fcoe-segmentation",
  38         [NETIF_F_GSO_GRE_BIT] =          "tx-gre-segmentation",
  39         [NETIF_F_GSO_GRE_CSUM_BIT] =     "tx-gre-csum-segmentation",
  40         [NETIF_F_GSO_IPXIP4_BIT] =       "tx-ipxip4-segmentation",
  41         [NETIF_F_GSO_IPXIP6_BIT] =       "tx-ipxip6-segmentation",
  42         [NETIF_F_GSO_UDP_TUNNEL_BIT] =   "tx-udp_tnl-segmentation",
  43         [NETIF_F_GSO_UDP_TUNNEL_CSUM_BIT] = "tx-udp_tnl-csum-segmentation",
  44         [NETIF_F_GSO_PARTIAL_BIT] =      "tx-gso-partial",
  45         [NETIF_F_GSO_TUNNEL_REMCSUM_BIT] = "tx-tunnel-remcsum-segmentation",
  46         [NETIF_F_GSO_SCTP_BIT] =         "tx-sctp-segmentation",
  47         [NETIF_F_GSO_ESP_BIT] =          "tx-esp-segmentation",
  48         [NETIF_F_GSO_UDP_L4_BIT] =       "tx-udp-segmentation",
  49         [NETIF_F_GSO_FRAGLIST_BIT] =     "tx-gso-list",
  50
  51         [NETIF_F_FCOE_CRC_BIT] =         "tx-checksum-fcoe-crc",
  52         [NETIF_F_SCTP_CRC_BIT] =        "tx-checksum-sctp",
  53         [NETIF_F_FCOE_MTU_BIT] =         "fcoe-mtu",
  54         [NETIF_F_NTUPLE_BIT] =           "rx-ntuple-filter",
  55         [NETIF_F_RXHASH_BIT] =           "rx-hashing",
  56         [NETIF_F_RXCSUM_BIT] =           "rx-checksum",
  57         [NETIF_F_NOCACHE_COPY_BIT] =     "tx-nocache-copy",
  58         [NETIF_F_LOOPBACK_BIT] =         "loopback",
  59         [NETIF_F_RXFCS_BIT] =            "rx-fcs",
  60         [NETIF_F_RXALL_BIT] =            "rx-all",
  61         [NETIF_F_HW_L2FW_DOFFLOAD_BIT] = "l2-fwd-offload",
  62         [NETIF_F_HW_TC_BIT] =            "hw-tc-offload",
  63         [NETIF_F_HW_ESP_BIT] =           "esp-hw-offload",
  64         [NETIF_F_HW_ESP_TX_CSUM_BIT] =   "esp-tx-csum-hw-offload",
  65         [NETIF_F_RX_UDP_TUNNEL_PORT_BIT] =       "rx-udp_tunnel-port-offload",
  66         [NETIF_F_HW_TLS_RECORD_BIT] =   "tls-hw-record",
  67         [NETIF_F_HW_TLS_TX_BIT] =        "tls-hw-tx-offload",
  68         [NETIF_F_HW_TLS_RX_BIT] =        "tls-hw-rx-offload",
  69         [NETIF_F_GRO_FRAGLIST_BIT] =     "rx-gro-list",
  70         [NETIF_F_HW_MACSEC_BIT] =        "macsec-hw-offload",
  71 };
  72
  73 const char
  74 rss_hash_func_strings[ETH_RSS_HASH_FUNCS_COUNT][ETH_GSTRING_LEN] = {
  75         [ETH_RSS_HASH_TOP_BIT] =        "toeplitz",
  76         [ETH_RSS_HASH_XOR_BIT] =        "xor",
  77         [ETH_RSS_HASH_CRC32_BIT] =      "crc32",
  78 };
  79
  80 const char
  81 tunable_strings[__ETHTOOL_TUNABLE_COUNT][ETH_GSTRING_LEN] = {
  82         [ETHTOOL_ID_UNSPEC]     = "Unspec",
  83         [ETHTOOL_RX_COPYBREAK]  = "rx-copybreak",
  84         [ETHTOOL_TX_COPYBREAK]  = "tx-copybreak",
  85         [ETHTOOL_PFC_PREVENTION_TOUT] = "pfc-prevention-tout",
  86 };
  87
  88 const char
  89 phy_tunable_strings[__ETHTOOL_PHY_TUNABLE_COUNT][ETH_GSTRING_LEN] = {
  90         [ETHTOOL_ID_UNSPEC]     = "Unspec",
  91         [ETHTOOL_PHY_DOWNSHIFT] = "phy-downshift",
  92         [ETHTOOL_PHY_FAST_LINK_DOWN] = "phy-fast-link-down",
  93         [ETHTOOL_PHY_EDPD]      = "phy-energy-detect-power-down",
  94 };
  95
  96 #define __LINK_MODE_NAME(speed, type, duplex) \
  97         #speed "base" #type "/" #duplex
  98 #define __DEFINE_LINK_MODE_NAME(speed, type, duplex) \
  99         [ETHTOOL_LINK_MODE(speed, type, duplex)] = \
 100         __LINK_MODE_NAME(speed, type, duplex)
 101 #define __DEFINE_SPECIAL_MODE_NAME(_mode, _name) \
 102         [ETHTOOL_LINK_MODE_ ## _mode ## _BIT] = _name
 103
 104 const char link_mode_names[][ETH_GSTRING_LEN] = {
 105         __DEFINE_LINK_MODE_NAME(10, T, Half),
 106         __DEFINE_LINK_MODE_NAME(10, T, Full),
 107         __DEFINE_LINK_MODE_NAME(100, T, Half),
 108         __DEFINE_LINK_MODE_NAME(100, T, Full),
 109         __DEFINE_LINK_MODE_NAME(1000, T, Half),
 110         __DEFINE_LINK_MODE_NAME(1000, T, Full),
 111         __DEFINE_SPECIAL_MODE_NAME(Autoneg, "Autoneg"),
 112         __DEFINE_SPECIAL_MODE_NAME(TP, "TP"),
 113         __DEFINE_SPECIAL_MODE_NAME(AUI, "AUI"),
 114         __DEFINE_SPECIAL_MODE_NAME(MII, "MII"),
 115         __DEFINE_SPECIAL_MODE_NAME(FIBRE, "FIBRE"),
 116         __DEFINE_SPECIAL_MODE_NAME(BNC, "BNC"),
 117         __DEFINE_LINK_MODE_NAME(10000, T, Full),
 118         __DEFINE_SPECIAL_MODE_NAME(Pause, "Pause"),
 119         __DEFINE_SPECIAL_MODE_NAME(Asym_Pause, "Asym_Pause"),
 120         __DEFINE_LINK_MODE_NAME(2500, X, Full),
 121         __DEFINE_SPECIAL_MODE_NAME(Backplane, "Backplane"),
 122         __DEFINE_LINK_MODE_NAME(1000, KX, Full),
 123         __DEFINE_LINK_MODE_NAME(10000, KX4, Full),
 124         __DEFINE_LINK_MODE_NAME(10000, KR, Full),
 125         __DEFINE_SPECIAL_MODE_NAME(10000baseR_FEC, "10000baseR_FEC"),
 126         __DEFINE_LINK_MODE_NAME(20000, MLD2, Full),
 127         __DEFINE_LINK_MODE_NAME(20000, KR2, Full),
 128         __DEFINE_LINK_MODE_NAME(40000, KR4, Full),
 129         __DEFINE_LINK_MODE_NAME(40000, CR4, Full),
 130         __DEFINE_LINK_MODE_NAME(40000, SR4, Full),
 131         __DEFINE_LINK_MODE_NAME(40000, LR4, Full),
 132         __DEFINE_LINK_MODE_NAME(56000, KR4, Full),
 133         __DEFINE_LINK_MODE_NAME(56000, CR4, Full),
 134         __DEFINE_LINK_MODE_NAME(56000, SR4, Full),
 135         __DEFINE_LINK_MODE_NAME(56000, LR4, Full),
 136         __DEFINE_LINK_MODE_NAME(25000, CR, Full),
 137         __DEFINE_LINK_MODE_NAME(25000, KR, Full),
 138         __DEFINE_LINK_MODE_NAME(25000, SR, Full),
 139         __DEFINE_LINK_MODE_NAME(50000, CR2, Full),
 140         __DEFINE_LINK_MODE_NAME(50000, KR2, Full),
 141         __DEFINE_LINK_MODE_NAME(100000, KR4, Full),
 142         __DEFINE_LINK_MODE_NAME(100000, SR4, Full),
 143         __DEFINE_LINK_MODE_NAME(100000, CR4, Full),
 144         __DEFINE_LINK_MODE_NAME(100000, LR4_ER4, Full),
 145         __DEFINE_LINK_MODE_NAME(50000, SR2, Full),
 146         __DEFINE_LINK_MODE_NAME(1000, X, Full),
 147         __DEFINE_LINK_MODE_NAME(10000, CR, Full),
 148         __DEFINE_LINK_MODE_NAME(10000, SR, Full),
 149         __DEFINE_LINK_MODE_NAME(10000, LR, Full),
 150         __DEFINE_LINK_MODE_NAME(10000, LRM, Full),
 151         __DEFINE_LINK_MODE_NAME(10000, ER, Full),
 152         __DEFINE_LINK_MODE_NAME(2500, T, Full),
 153         __DEFINE_LINK_MODE_NAME(5000, T, Full),
 154         __DEFINE_SPECIAL_MODE_NAME(FEC_NONE, "None"),
 155         __DEFINE_SPECIAL_MODE_NAME(FEC_RS, "RS"),
 156         __DEFINE_SPECIAL_MODE_NAME(FEC_BASER, "BASER"),
 157         __DEFINE_LINK_MODE_NAME(50000, KR, Full),
 158         __DEFINE_LINK_MODE_NAME(50000, SR, Full),
 159         __DEFINE_LINK_MODE_NAME(50000, CR, Full),
 160         __DEFINE_LINK_MODE_NAME(50000, LR_ER_FR, Full),
 161         __DEFINE_LINK_MODE_NAME(50000, DR, Full),
 162         __DEFINE_LINK_MODE_NAME(100000, KR2, Full),
 163         __DEFINE_LINK_MODE_NAME(100000, SR2, Full),
 164         __DEFINE_LINK_MODE_NAME(100000, CR2, Full),
 165         __DEFINE_LINK_MODE_NAME(100000, LR2_ER2_FR2, Full),
 166         __DEFINE_LINK_MODE_NAME(100000, DR2, Full),
 167         __DEFINE_LINK_MODE_NAME(200000, KR4, Full),
 168         __DEFINE_LINK_MODE_NAME(200000, SR4, Full),
 169         __DEFINE_LINK_MODE_NAME(200000, LR4_ER4_FR4, Full),
 170         __DEFINE_LINK_MODE_NAME(200000, DR4, Full),
 171         __DEFINE_LINK_MODE_NAME(200000, CR4, Full),
 172         __DEFINE_LINK_MODE_NAME(100, T1, Full),
 173         __DEFINE_LINK_MODE_NAME(1000, T1, Full),
 174         __DEFINE_LINK_MODE_NAME(400000, KR8, Full),
 175         __DEFINE_LINK_MODE_NAME(400000, SR8, Full),
 176         __DEFINE_LINK_MODE_NAME(400000, LR8_ER8_FR8, Full),
 177         __DEFINE_LINK_MODE_NAME(400000, DR8, Full),
 178         __DEFINE_LINK_MODE_NAME(400000, CR8, Full),
 179         __DEFINE_SPECIAL_MODE_NAME(FEC_LLRS, "LLRS"),
 180         __DEFINE_LINK_MODE_NAME(100000, KR, Full),
 181         __DEFINE_LINK_MODE_NAME(100000, SR, Full),
 182         __DEFINE_LINK_MODE_NAME(100000, LR_ER_FR, Full),
 183         __DEFINE_LINK_MODE_NAME(100000, DR, Full),
 184         __DEFINE_LINK_MODE_NAME(100000, CR, Full),
 185         __DEFINE_LINK_MODE_NAME(200000, KR2, Full),
 186         __DEFINE_LINK_MODE_NAME(200000, SR2, Full),
 187         __DEFINE_LINK_MODE_NAME(200000, LR2_ER2_FR2, Full),
 188         __DEFINE_LINK_MODE_NAME(200000, DR2, Full),
 189         __DEFINE_LINK_MODE_NAME(200000, CR2, Full),
 190         __DEFINE_LINK_MODE_NAME(400000, KR4, Full),
 191         __DEFINE_LINK_MODE_NAME(400000, SR4, Full),
 192         __DEFINE_LINK_MODE_NAME(400000, LR4_ER4_FR4, Full),
 193         __DEFINE_LINK_MODE_NAME(400000, DR4, Full),
 194         __DEFINE_LINK_MODE_NAME(400000, CR4, Full),
 195         __DEFINE_LINK_MODE_NAME(100, FX, Half),
 196         __DEFINE_LINK_MODE_NAME(100, FX, Full),
 197 };
 198 static_assert(ARRAY_SIZE(link_mode_names) == __ETHTOOL_LINK_MODE_MASK_NBITS);
 199
 200 const char netif_msg_class_names[][ETH_GSTRING_LEN] = {
 201         [NETIF_MSG_DRV_BIT]             = "drv",
 202         [NETIF_MSG_PROBE_BIT]           = "probe",
 203         [NETIF_MSG_LINK_BIT]            = "link",
 204         [NETIF_MSG_TIMER_BIT]           = "timer",
 205         [NETIF_MSG_IFDOWN_BIT]          = "ifdown",
 206         [NETIF_MSG_IFUP_BIT]            = "ifup",
 207         [NETIF_MSG_RX_ERR_BIT]          = "rx_err",
 208         [NETIF_MSG_TX_ERR_BIT]          = "tx_err",
 209         [NETIF_MSG_TX_QUEUED_BIT]       = "tx_queued",
 210         [NETIF_MSG_INTR_BIT]            = "intr",
 211         [NETIF_MSG_TX_DONE_BIT]         = "tx_done",
 212         [NETIF_MSG_RX_STATUS_BIT]       = "rx_status",
 213         [NETIF_MSG_PKTDATA_BIT]         = "pktdata",
 214         [NETIF_MSG_HW_BIT]              = "hw",
 215         [NETIF_MSG_WOL_BIT]             = "wol",
 216 };
 217 static_assert(ARRAY_SIZE(netif_msg_class_names) == NETIF_MSG_CLASS_COUNT);
 218
 219 const char wol_mode_names[][ETH_GSTRING_LEN] = {
 220         [const_ilog2(WAKE_PHY)]         = "phy",
 221         [const_ilog2(WAKE_UCAST)]       = "ucast",
 222         [const_ilog2(WAKE_MCAST)]       = "mcast",
 223         [const_ilog2(WAKE_BCAST)]       = "bcast",
 224         [const_ilog2(WAKE_ARP)]         = "arp",
 225         [const_ilog2(WAKE_MAGIC)]       = "magic",
 226         [const_ilog2(WAKE_MAGICSECURE)] = "magicsecure",
 227         [const_ilog2(WAKE_FILTER)]      = "filter",
 228 };
 229 static_assert(ARRAY_SIZE(wol_mode_names) == WOL_MODE_COUNT);
 230
 231 const char sof_timestamping_names[][ETH_GSTRING_LEN] = {
 232         [const_ilog2(SOF_TIMESTAMPING_TX_HARDWARE)]  = "hardware-transmit",
 233         [const_ilog2(SOF_TIMESTAMPING_TX_SOFTWARE)]  = "software-transmit",
 234         [const_ilog2(SOF_TIMESTAMPING_RX_HARDWARE)]  = "hardware-receive",
 235         [const_ilog2(SOF_TIMESTAMPING_RX_SOFTWARE)]  = "software-receive",
 236         [const_ilog2(SOF_TIMESTAMPING_SOFTWARE)]     = "software-system-clock",
 237         [const_ilog2(SOF_TIMESTAMPING_SYS_HARDWARE)] = "hardware-legacy-clock",
 238         [const_ilog2(SOF_TIMESTAMPING_RAW_HARDWARE)] = "hardware-raw-clock",
 239         [const_ilog2(SOF_TIMESTAMPING_OPT_ID)]       = "option-id",
 240         [const_ilog2(SOF_TIMESTAMPING_TX_SCHED)]     = "sched-transmit",
 241         [const_ilog2(SOF_TIMESTAMPING_TX_ACK)]       = "ack-transmit",
 242         [const_ilog2(SOF_TIMESTAMPING_OPT_CMSG)]     = "option-cmsg",
 243         [const_ilog2(SOF_TIMESTAMPING_OPT_TSONLY)]   = "option-tsonly",
 244         [const_ilog2(SOF_TIMESTAMPING_OPT_STATS)]    = "option-stats",
 245         [const_ilog2(SOF_TIMESTAMPING_OPT_PKTINFO)]  = "option-pktinfo",
 246         [const_ilog2(SOF_TIMESTAMPING_OPT_TX_SWHW)]  = "option-tx-swhw",
 247 };
 248 static_assert(ARRAY_SIZE(sof_timestamping_names) == __SOF_TIMESTAMPING_CNT);
 249
 250 const char ts_tx_type_names[][ETH_GSTRING_LEN] = {
 251         [HWTSTAMP_TX_OFF]               = "off",
 252         [HWTSTAMP_TX_ON]                = "on",
 253         [HWTSTAMP_TX_ONESTEP_SYNC]      = "onestep-sync",
 254         [HWTSTAMP_TX_ONESTEP_P2P]       = "onestep-p2p",
 255 };
 256 static_assert(ARRAY_SIZE(ts_tx_type_names) == __HWTSTAMP_TX_CNT);
 257
 258 const char ts_rx_filter_names[][ETH_GSTRING_LEN] = {
 259         [HWTSTAMP_FILTER_NONE]                  = "none",
 260         [HWTSTAMP_FILTER_ALL]                   = "all",
 261         [HWTSTAMP_FILTER_SOME]                  = "some",
 262         [HWTSTAMP_FILTER_PTP_V1_L4_EVENT]       = "ptpv1-l4-event",
 263         [HWTSTAMP_FILTER_PTP_V1_L4_SYNC]        = "ptpv1-l4-sync",
 264         [HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ]   = "ptpv1-l4-delay-req",
 265         [HWTSTAMP_FILTER_PTP_V2_L4_EVENT]       = "ptpv2-l4-event",
 266         [HWTSTAMP_FILTER_PTP_V2_L4_SYNC]        = "ptpv2-l4-sync",
 267         [HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ]   = "ptpv2-l4-delay-req",
 268         [HWTSTAMP_FILTER_PTP_V2_L2_EVENT]       = "ptpv2-l2-event",
 269         [HWTSTAMP_FILTER_PTP_V2_L2_SYNC]        = "ptpv2-l2-sync",
 270         [HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ]   = "ptpv2-l2-delay-req",
 271         [HWTSTAMP_FILTER_PTP_V2_EVENT]          = "ptpv2-event",
 272         [HWTSTAMP_FILTER_PTP_V2_SYNC]           = "ptpv2-sync",
 273         [HWTSTAMP_FILTER_PTP_V2_DELAY_REQ]      = "ptpv2-delay-req",
 274         [HWTSTAMP_FILTER_NTP_ALL]               = "ntp-all",
 275 };
 276 static_assert(ARRAY_SIZE(ts_rx_filter_names) == __HWTSTAMP_FILTER_CNT);
 277
 278 const char udp_tunnel_type_names[][ETH_GSTRING_LEN] = {
 279         [ETHTOOL_UDP_TUNNEL_TYPE_VXLAN]         = "vxlan",
 280         [ETHTOOL_UDP_TUNNEL_TYPE_GENEVE]        = "geneve",
 281         [ETHTOOL_UDP_TUNNEL_TYPE_VXLAN_GPE]     = "vxlan-gpe",
 282 };
 283 static_assert(ARRAY_SIZE(udp_tunnel_type_names) ==
 284               __ETHTOOL_UDP_TUNNEL_TYPE_CNT);
 285
 286 /* return false if legacy contained non-0 deprecated fields
 287  * maxtxpkt/maxrxpkt. rest of ksettings always updated
 288  */
 289 bool
 290 convert_legacy_settings_to_link_ksettings(
 291         struct ethtool_link_ksettings *link_ksettings,
 292         const struct ethtool_cmd *legacy_settings)
 293 {
 294         bool retval = true;
 295
 296         memset(link_ksettings, 0, sizeof(*link_ksettings));
 297
 298         /* This is used to tell users that driver is still using these
 299          * deprecated legacy fields, and they should not use
 300          * %ETHTOOL_GLINKSETTINGS/%ETHTOOL_SLINKSETTINGS
 301          */
 302         if (legacy_settings->maxtxpkt ||
 303             legacy_settings->maxrxpkt)
 304                 retval = false;
 305
 306         ethtool_convert_legacy_u32_to_link_mode(
 307                 link_ksettings->link_modes.supported,
 308                 legacy_settings->supported);
 309         ethtool_convert_legacy_u32_to_link_mode(
 310                 link_ksettings->link_modes.advertising,
 311                 legacy_settings->advertising);
 312         ethtool_convert_legacy_u32_to_link_mode(
 313                 link_ksettings->link_modes.lp_advertising,
 314                 legacy_settings->lp_advertising);
 315         link_ksettings->base.speed
 316                 = ethtool_cmd_speed(legacy_settings);
 317         link_ksettings->base.duplex
 318                 = legacy_settings->duplex;
 319         link_ksettings->base.port
 320                 = legacy_settings->port;
 321         link_ksettings->base.phy_address
 322                 = legacy_settings->phy_address;
 323         link_ksettings->base.autoneg
 324                 = legacy_settings->autoneg;
 325         link_ksettings->base.mdio_support
 326                 = legacy_settings->mdio_support;
 327         link_ksettings->base.eth_tp_mdix
 328                 = legacy_settings->eth_tp_mdix;
 329         link_ksettings->base.eth_tp_mdix_ctrl
 330                 = legacy_settings->eth_tp_mdix_ctrl;
 331         return retval;
 332 }
 333
 334 int __ethtool_get_link(struct net_device *dev)
 335 {
 336         if (!dev->ethtool_ops->get_link)
 337                 return -EOPNOTSUPP;
 338
 339         return netif_running(dev) && dev->ethtool_ops->get_link(dev);
 340 }
 341
 342 int ethtool_get_max_rxfh_channel(struct net_device *dev, u32 *max)
 343 {
 344         u32 dev_size, current_max = 0;
 345         u32 *indir;
 346         int ret;
 347
 348         if (!dev->ethtool_ops->get_rxfh_indir_size ||
 349             !dev->ethtool_ops->get_rxfh)
 350                 return -EOPNOTSUPP;
 351         dev_size = dev->ethtool_ops->get_rxfh_indir_size(dev);
 352         if (dev_size == 0)
 353                 return -EOPNOTSUPP;
 354
 355         indir = kcalloc(dev_size, sizeof(indir[0]), GFP_USER);
 356         if (!indir)
 357                 return -ENOMEM;
 358
 359         ret = dev->ethtool_ops->get_rxfh(dev, indir, NULL, NULL);
 360         if (ret)
 361                 goto out;
 362
 363         while (dev_size--)
 364                 current_max = max(current_max, indir[dev_size]);
 365
 366         *max = current_max;
 367
 368 out:
 369         kfree(indir);
 370         return ret;
 371 }
 372
 373 int ethtool_check_ops(const struct ethtool_ops *ops)
 374 {
 375         if (WARN_ON(ops->set_coalesce && !ops->supported_coalesce_params))
 376                 return -EINVAL;
 377         /* NOTE: sufficiently insane drivers may swap ethtool_ops at runtime,
 378          * the fact that ops are checked at registration time does not
 379          * mean the ops attached to a netdev later on are sane.
 380          */
 381         return 0;
 382 }
 383
 384 int __ethtool_get_ts_info(struct net_device *dev, struct ethtool_ts_info *info)
 385 {
 386         const struct ethtool_ops *ops = dev->ethtool_ops;
 387         struct phy_device *phydev = dev->phydev;
 388
 389         memset(info, 0, sizeof(*info));
 390         info->cmd = ETHTOOL_GET_TS_INFO;
 391
 392         if (phy_has_tsinfo(phydev))
 393                 return phy_ts_info(phydev, info);
 394         if (ops->get_ts_info)
 395                 return ops->get_ts_info(dev, info);
 396
 397         info->so_timestamping = SOF_TIMESTAMPING_RX_SOFTWARE |
 398                                 SOF_TIMESTAMPING_SOFTWARE;
 399         info->phc_index = -1;
 400
 401         return 0;
 402 }
 403
 404 const struct ethtool_phy_ops *ethtool_phy_ops;
 405
 406 void ethtool_set_ethtool_phy_ops(const struct ethtool_phy_ops *ops)
 407 {
 408         rtnl_lock();
 409         ethtool_phy_ops = ops;
 410         rtnl_unlock();
 411 }
 412 EXPORT_SYMBOL_GPL(ethtool_set_ethtool_phy_ops);