net/ethtool/common.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2
   3 #include "common.h"
   4
   5 const char netdev_features_strings[NETDEV_FEATURE_COUNT][ETH_GSTRING_LEN] = {
   6         [NETIF_F_SG_BIT] =               "tx-scatter-gather",
   7         [NETIF_F_IP_CSUM_BIT] =          "tx-checksum-ipv4",
   8         [NETIF_F_HW_CSUM_BIT] =          "tx-checksum-ip-generic",
   9         [NETIF_F_IPV6_CSUM_BIT] =        "tx-checksum-ipv6",
  10         [NETIF_F_HIGHDMA_BIT] =          "highdma",
  11         [NETIF_F_FRAGLIST_BIT] =         "tx-scatter-gather-fraglist",
  12         [NETIF_F_HW_VLAN_CTAG_TX_BIT] =  "tx-vlan-hw-insert",
  13
  14         [NETIF_F_HW_VLAN_CTAG_RX_BIT] =  "rx-vlan-hw-parse",
  15         [NETIF_F_HW_VLAN_CTAG_FILTER_BIT] = "rx-vlan-filter",
  16         [NETIF_F_HW_VLAN_STAG_TX_BIT] =  "tx-vlan-stag-hw-insert",
  17         [NETIF_F_HW_VLAN_STAG_RX_BIT] =  "rx-vlan-stag-hw-parse",
  18         [NETIF_F_HW_VLAN_STAG_FILTER_BIT] = "rx-vlan-stag-filter",
  19         [NETIF_F_VLAN_CHALLENGED_BIT] =  "vlan-challenged",
  20         [NETIF_F_GSO_BIT] =              "tx-generic-segmentation",
  21         [NETIF_F_LLTX_BIT] =             "tx-lockless",
  22         [NETIF_F_NETNS_LOCAL_BIT] =      "netns-local",
  23         [NETIF_F_GRO_BIT] =              "rx-gro",
  24         [NETIF_F_GRO_HW_BIT] =           "rx-gro-hw",
  25         [NETIF_F_LRO_BIT] =              "rx-lro",
  26
  27         [NETIF_F_TSO_BIT] =              "tx-tcp-segmentation",
  28         [NETIF_F_GSO_ROBUST_BIT] =       "tx-gso-robust",
  29         [NETIF_F_TSO_ECN_BIT] =          "tx-tcp-ecn-segmentation",
  30         [NETIF_F_TSO_MANGLEID_BIT] =     "tx-tcp-mangleid-segmentation",
  31         [NETIF_F_TSO6_BIT] =             "tx-tcp6-segmentation",
  32         [NETIF_F_FSO_BIT] =              "tx-fcoe-segmentation",
  33         [NETIF_F_GSO_GRE_BIT] =          "tx-gre-segmentation",
  34         [NETIF_F_GSO_GRE_CSUM_BIT] =     "tx-gre-csum-segmentation",
  35         [NETIF_F_GSO_IPXIP4_BIT] =       "tx-ipxip4-segmentation",
  36         [NETIF_F_GSO_IPXIP6_BIT] =       "tx-ipxip6-segmentation",
  37         [NETIF_F_GSO_UDP_TUNNEL_BIT] =   "tx-udp_tnl-segmentation",
  38         [NETIF_F_GSO_UDP_TUNNEL_CSUM_BIT] = "tx-udp_tnl-csum-segmentation",
  39         [NETIF_F_GSO_PARTIAL_BIT] =      "tx-gso-partial",
  40         [NETIF_F_GSO_SCTP_BIT] =         "tx-sctp-segmentation",
  41         [NETIF_F_GSO_ESP_BIT] =          "tx-esp-segmentation",
  42         [NETIF_F_GSO_UDP_L4_BIT] =       "tx-udp-segmentation",
  43
  44         [NETIF_F_FCOE_CRC_BIT] =         "tx-checksum-fcoe-crc",
  45         [NETIF_F_SCTP_CRC_BIT] =        "tx-checksum-sctp",
  46         [NETIF_F_FCOE_MTU_BIT] =         "fcoe-mtu",
  47         [NETIF_F_NTUPLE_BIT] =           "rx-ntuple-filter",
  48         [NETIF_F_RXHASH_BIT] =           "rx-hashing",
  49         [NETIF_F_RXCSUM_BIT] =           "rx-checksum",
  50         [NETIF_F_NOCACHE_COPY_BIT] =     "tx-nocache-copy",
  51         [NETIF_F_LOOPBACK_BIT] =         "loopback",
  52         [NETIF_F_RXFCS_BIT] =            "rx-fcs",
  53         [NETIF_F_RXALL_BIT] =            "rx-all",
  54         [NETIF_F_HW_L2FW_DOFFLOAD_BIT] = "l2-fwd-offload",
  55         [NETIF_F_HW_TC_BIT] =            "hw-tc-offload",
  56         [NETIF_F_HW_ESP_BIT] =           "esp-hw-offload",
  57         [NETIF_F_HW_ESP_TX_CSUM_BIT] =   "esp-tx-csum-hw-offload",
  58         [NETIF_F_RX_UDP_TUNNEL_PORT_BIT] =       "rx-udp_tunnel-port-offload",
  59         [NETIF_F_HW_TLS_RECORD_BIT] =   "tls-hw-record",
  60         [NETIF_F_HW_TLS_TX_BIT] =        "tls-hw-tx-offload",
  61         [NETIF_F_HW_TLS_RX_BIT] =        "tls-hw-rx-offload",
  62         [NETIF_F_GRO_FRAGLIST_BIT] =     "rx-gro-list",
  63 };
  64
  65 const char
  66 rss_hash_func_strings[ETH_RSS_HASH_FUNCS_COUNT][ETH_GSTRING_LEN] = {
  67         [ETH_RSS_HASH_TOP_BIT] =        "toeplitz",
  68         [ETH_RSS_HASH_XOR_BIT] =        "xor",
  69         [ETH_RSS_HASH_CRC32_BIT] =      "crc32",
  70 };
  71
  72 const char
  73 tunable_strings[__ETHTOOL_TUNABLE_COUNT][ETH_GSTRING_LEN] = {
  74         [ETHTOOL_ID_UNSPEC]     = "Unspec",
  75         [ETHTOOL_RX_COPYBREAK]  = "rx-copybreak",
  76         [ETHTOOL_TX_COPYBREAK]  = "tx-copybreak",
  77         [ETHTOOL_PFC_PREVENTION_TOUT] = "pfc-prevention-tout",
  78 };
  79
  80 const char
  81 phy_tunable_strings[__ETHTOOL_PHY_TUNABLE_COUNT][ETH_GSTRING_LEN] = {
  82         [ETHTOOL_ID_UNSPEC]     = "Unspec",
  83         [ETHTOOL_PHY_DOWNSHIFT] = "phy-downshift",
  84         [ETHTOOL_PHY_FAST_LINK_DOWN] = "phy-fast-link-down",
  85         [ETHTOOL_PHY_EDPD]      = "phy-energy-detect-power-down",
  86 };
  87
  88 #define __LINK_MODE_NAME(speed, type, duplex) \
  89         #speed "base" #type "/" #duplex
  90 #define __DEFINE_LINK_MODE_NAME(speed, type, duplex) \
  91         [ETHTOOL_LINK_MODE(speed, type, duplex)] = \
  92         __LINK_MODE_NAME(speed, type, duplex)
  93 #define __DEFINE_SPECIAL_MODE_NAME(_mode, _name) \
  94         [ETHTOOL_LINK_MODE_ ## _mode ## _BIT] = _name
  95
  96 const char link_mode_names[][ETH_GSTRING_LEN] = {
  97         __DEFINE_LINK_MODE_NAME(10, T, Half),
  98         __DEFINE_LINK_MODE_NAME(10, T, Full),
  99         __DEFINE_LINK_MODE_NAME(100, T, Half),
 100         __DEFINE_LINK_MODE_NAME(100, T, Full),
 101         __DEFINE_LINK_MODE_NAME(1000, T, Half),
 102         __DEFINE_LINK_MODE_NAME(1000, T, Full),
 103         __DEFINE_SPECIAL_MODE_NAME(Autoneg, "Autoneg"),
 104         __DEFINE_SPECIAL_MODE_NAME(TP, "TP"),
 105         __DEFINE_SPECIAL_MODE_NAME(AUI, "AUI"),
 106         __DEFINE_SPECIAL_MODE_NAME(MII, "MII"),
 107         __DEFINE_SPECIAL_MODE_NAME(FIBRE, "FIBRE"),
 108         __DEFINE_SPECIAL_MODE_NAME(BNC, "BNC"),
 109         __DEFINE_LINK_MODE_NAME(10000, T, Full),
 110         __DEFINE_SPECIAL_MODE_NAME(Pause, "Pause"),
 111         __DEFINE_SPECIAL_MODE_NAME(Asym_Pause, "Asym_Pause"),
 112         __DEFINE_LINK_MODE_NAME(2500, X, Full),
 113         __DEFINE_SPECIAL_MODE_NAME(Backplane, "Backplane"),
 114         __DEFINE_LINK_MODE_NAME(1000, KX, Full),
 115         __DEFINE_LINK_MODE_NAME(10000, KX4, Full),
 116         __DEFINE_LINK_MODE_NAME(10000, KR, Full),
 117         __DEFINE_SPECIAL_MODE_NAME(10000baseR_FEC, "10000baseR_FEC"),
 118         __DEFINE_LINK_MODE_NAME(20000, MLD2, Full),
 119         __DEFINE_LINK_MODE_NAME(20000, KR2, Full),
 120         __DEFINE_LINK_MODE_NAME(40000, KR4, Full),
 121         __DEFINE_LINK_MODE_NAME(40000, CR4, Full),
 122         __DEFINE_LINK_MODE_NAME(40000, SR4, Full),
 123         __DEFINE_LINK_MODE_NAME(40000, LR4, Full),
 124         __DEFINE_LINK_MODE_NAME(56000, KR4, Full),
 125         __DEFINE_LINK_MODE_NAME(56000, CR4, Full),
 126         __DEFINE_LINK_MODE_NAME(56000, SR4, Full),
 127         __DEFINE_LINK_MODE_NAME(56000, LR4, Full),
 128         __DEFINE_LINK_MODE_NAME(25000, CR, Full),
 129         __DEFINE_LINK_MODE_NAME(25000, KR, Full),
 130         __DEFINE_LINK_MODE_NAME(25000, SR, Full),
 131         __DEFINE_LINK_MODE_NAME(50000, CR2, Full),
 132         __DEFINE_LINK_MODE_NAME(50000, KR2, Full),
 133         __DEFINE_LINK_MODE_NAME(100000, KR4, Full),
 134         __DEFINE_LINK_MODE_NAME(100000, SR4, Full),
 135         __DEFINE_LINK_MODE_NAME(100000, CR4, Full),
 136         __DEFINE_LINK_MODE_NAME(100000, LR4_ER4, Full),
 137         __DEFINE_LINK_MODE_NAME(50000, SR2, Full),
 138         __DEFINE_LINK_MODE_NAME(1000, X, Full),
 139         __DEFINE_LINK_MODE_NAME(10000, CR, Full),
 140         __DEFINE_LINK_MODE_NAME(10000, SR, Full),
 141         __DEFINE_LINK_MODE_NAME(10000, LR, Full),
 142         __DEFINE_LINK_MODE_NAME(10000, LRM, Full),
 143         __DEFINE_LINK_MODE_NAME(10000, ER, Full),
 144         __DEFINE_LINK_MODE_NAME(2500, T, Full),
 145         __DEFINE_LINK_MODE_NAME(5000, T, Full),
 146         __DEFINE_SPECIAL_MODE_NAME(FEC_NONE, "None"),
 147         __DEFINE_SPECIAL_MODE_NAME(FEC_RS, "RS"),
 148         __DEFINE_SPECIAL_MODE_NAME(FEC_BASER, "BASER"),
 149         __DEFINE_LINK_MODE_NAME(50000, KR, Full),
 150         __DEFINE_LINK_MODE_NAME(50000, SR, Full),
 151         __DEFINE_LINK_MODE_NAME(50000, CR, Full),
 152         __DEFINE_LINK_MODE_NAME(50000, LR_ER_FR, Full),
 153         __DEFINE_LINK_MODE_NAME(50000, DR, Full),
 154         __DEFINE_LINK_MODE_NAME(100000, KR2, Full),
 155         __DEFINE_LINK_MODE_NAME(100000, SR2, Full),
 156         __DEFINE_LINK_MODE_NAME(100000, CR2, Full),
 157         __DEFINE_LINK_MODE_NAME(100000, LR2_ER2_FR2, Full),
 158         __DEFINE_LINK_MODE_NAME(100000, DR2, Full),
 159         __DEFINE_LINK_MODE_NAME(200000, KR4, Full),
 160         __DEFINE_LINK_MODE_NAME(200000, SR4, Full),
 161         __DEFINE_LINK_MODE_NAME(200000, LR4_ER4_FR4, Full),
 162         __DEFINE_LINK_MODE_NAME(200000, DR4, Full),
 163         __DEFINE_LINK_MODE_NAME(200000, CR4, Full),
 164         __DEFINE_LINK_MODE_NAME(100, T1, Full),
 165         __DEFINE_LINK_MODE_NAME(1000, T1, Full),
 166         __DEFINE_LINK_MODE_NAME(400000, KR8, Full),
 167         __DEFINE_LINK_MODE_NAME(400000, SR8, Full),
 168         __DEFINE_LINK_MODE_NAME(400000, LR8_ER8_FR8, Full),
 169         __DEFINE_LINK_MODE_NAME(400000, DR8, Full),
 170         __DEFINE_LINK_MODE_NAME(400000, CR8, Full),
 171         __DEFINE_SPECIAL_MODE_NAME(FEC_LLRS, "LLRS"),
 172 };
 173 static_assert(ARRAY_SIZE(link_mode_names) == __ETHTOOL_LINK_MODE_MASK_NBITS);
 174
 175 const char netif_msg_class_names[][ETH_GSTRING_LEN] = {
 176         [NETIF_MSG_DRV_BIT]             = "drv",
 177         [NETIF_MSG_PROBE_BIT]           = "probe",
 178         [NETIF_MSG_LINK_BIT]            = "link",
 179         [NETIF_MSG_TIMER_BIT]           = "timer",
 180         [NETIF_MSG_IFDOWN_BIT]          = "ifdown",
 181         [NETIF_MSG_IFUP_BIT]            = "ifup",
 182         [NETIF_MSG_RX_ERR_BIT]          = "rx_err",
 183         [NETIF_MSG_TX_ERR_BIT]          = "tx_err",
 184         [NETIF_MSG_TX_QUEUED_BIT]       = "tx_queued",
 185         [NETIF_MSG_INTR_BIT]            = "intr",
 186         [NETIF_MSG_TX_DONE_BIT]         = "tx_done",
 187         [NETIF_MSG_RX_STATUS_BIT]       = "rx_status",
 188         [NETIF_MSG_PKTDATA_BIT]         = "pktdata",
 189         [NETIF_MSG_HW_BIT]              = "hw",
 190         [NETIF_MSG_WOL_BIT]             = "wol",
 191 };
 192 static_assert(ARRAY_SIZE(netif_msg_class_names) == NETIF_MSG_CLASS_COUNT);
 193
 194 const char wol_mode_names[][ETH_GSTRING_LEN] = {
 195         [const_ilog2(WAKE_PHY)]         = "phy",
 196         [const_ilog2(WAKE_UCAST)]       = "ucast",
 197         [const_ilog2(WAKE_MCAST)]       = "mcast",
 198         [const_ilog2(WAKE_BCAST)]       = "bcast",
 199         [const_ilog2(WAKE_ARP)]         = "arp",
 200         [const_ilog2(WAKE_MAGIC)]       = "magic",
 201         [const_ilog2(WAKE_MAGICSECURE)] = "magicsecure",
 202         [const_ilog2(WAKE_FILTER)]      = "filter",
 203 };
 204 static_assert(ARRAY_SIZE(wol_mode_names) == WOL_MODE_COUNT);
 205
 206 /* return false if legacy contained non-0 deprecated fields
 207  * maxtxpkt/maxrxpkt. rest of ksettings always updated
 208  */
 209 bool
 210 convert_legacy_settings_to_link_ksettings(
 211         struct ethtool_link_ksettings *link_ksettings,
 212         const struct ethtool_cmd *legacy_settings)
 213 {
 214         bool retval = true;
 215
 216         memset(link_ksettings, 0, sizeof(*link_ksettings));
 217
 218         /* This is used to tell users that driver is still using these
 219          * deprecated legacy fields, and they should not use
 220          * %ETHTOOL_GLINKSETTINGS/%ETHTOOL_SLINKSETTINGS
 221          */
 222         if (legacy_settings->maxtxpkt ||
 223             legacy_settings->maxrxpkt)
 224                 retval = false;
 225
 226         ethtool_convert_legacy_u32_to_link_mode(
 227                 link_ksettings->link_modes.supported,
 228                 legacy_settings->supported);
 229         ethtool_convert_legacy_u32_to_link_mode(
 230                 link_ksettings->link_modes.advertising,
 231                 legacy_settings->advertising);
 232         ethtool_convert_legacy_u32_to_link_mode(
 233                 link_ksettings->link_modes.lp_advertising,
 234                 legacy_settings->lp_advertising);
 235         link_ksettings->base.speed
 236                 = ethtool_cmd_speed(legacy_settings);
 237         link_ksettings->base.duplex
 238                 = legacy_settings->duplex;
 239         link_ksettings->base.port
 240                 = legacy_settings->port;
 241         link_ksettings->base.phy_address
 242                 = legacy_settings->phy_address;
 243         link_ksettings->base.autoneg
 244                 = legacy_settings->autoneg;
 245         link_ksettings->base.mdio_support
 246                 = legacy_settings->mdio_support;
 247         link_ksettings->base.eth_tp_mdix
 248                 = legacy_settings->eth_tp_mdix;
 249         link_ksettings->base.eth_tp_mdix_ctrl
 250                 = legacy_settings->eth_tp_mdix_ctrl;
 251         return retval;
 252 }
 253
 254 int __ethtool_get_link(struct net_device *dev)
 255 {
 256         if (!dev->ethtool_ops->get_link)
 257                 return -EOPNOTSUPP;
 258
 259         return netif_running(dev) && dev->ethtool_ops->get_link(dev);
 260 }
 261
 262 int ethtool_get_max_rxfh_channel(struct net_device *dev, u32 *max)
 263 {
 264         u32 dev_size, current_max = 0;
 265         u32 *indir;
 266         int ret;
 267
 268         if (!dev->ethtool_ops->get_rxfh_indir_size ||
 269             !dev->ethtool_ops->get_rxfh)
 270                 return -EOPNOTSUPP;
 271         dev_size = dev->ethtool_ops->get_rxfh_indir_size(dev);
 272         if (dev_size == 0)
 273                 return -EOPNOTSUPP;
 274
 275         indir = kcalloc(dev_size, sizeof(indir[0]), GFP_USER);
 276         if (!indir)
 277                 return -ENOMEM;
 278
 279         ret = dev->ethtool_ops->get_rxfh(dev, indir, NULL, NULL);
 280         if (ret)
 281                 goto out;
 282
 283         while (dev_size--)
 284                 current_max = max(current_max, indir[dev_size]);
 285
 286         *max = current_max;
 287
 288 out:
 289         kfree(indir);
 290         return ret;
 291 }