drivers/net/ethernet/hisilicon/hns3/hns3pf/hns3_ethtool.c

   1 /*
   2  * Copyright (c) 2016~2017 Hisilicon Limited.
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8  */
   9
  10 #include <linux/etherdevice.h>
  11 #include <linux/string.h>
  12
  13 #include "hns3_enet.h"
  14
  15 struct hns3_stats {
  16         char stats_string[ETH_GSTRING_LEN];
  17         int stats_size;
  18         int stats_offset;
  19 };
  20
  21 /* tqp related stats */
  22 #define HNS3_TQP_STAT(_string, _member) {                       \
  23         .stats_string = _string,                                \
  24         .stats_size = FIELD_SIZEOF(struct ring_stats, _member), \
  25         .stats_offset = offsetof(struct hns3_enet_ring, stats) +\
  26                         offsetof(struct ring_stats, _member),   \
  27 }                                                               \
  28
  29 static const struct hns3_stats hns3_txq_stats[] = {
  30         /* Tx per-queue statistics */
  31         HNS3_TQP_STAT("tx_io_err_cnt", io_err_cnt),
  32         HNS3_TQP_STAT("tx_sw_err_cnt", sw_err_cnt),
  33         HNS3_TQP_STAT("tx_seg_pkt_cnt", seg_pkt_cnt),
  34         HNS3_TQP_STAT("tx_pkts", tx_pkts),
  35         HNS3_TQP_STAT("tx_bytes", tx_bytes),
  36         HNS3_TQP_STAT("tx_err_cnt", tx_err_cnt),
  37         HNS3_TQP_STAT("tx_restart_queue", restart_queue),
  38         HNS3_TQP_STAT("tx_busy", tx_busy),
  39 };
  40
  41 #define HNS3_TXQ_STATS_COUNT ARRAY_SIZE(hns3_txq_stats)
  42
  43 static const struct hns3_stats hns3_rxq_stats[] = {
  44         /* Rx per-queue statistics */
  45         HNS3_TQP_STAT("rx_io_err_cnt", io_err_cnt),
  46         HNS3_TQP_STAT("rx_sw_err_cnt", sw_err_cnt),
  47         HNS3_TQP_STAT("rx_seg_pkt_cnt", seg_pkt_cnt),
  48         HNS3_TQP_STAT("rx_pkts", rx_pkts),
  49         HNS3_TQP_STAT("rx_bytes", rx_bytes),
  50         HNS3_TQP_STAT("rx_err_cnt", rx_err_cnt),
  51         HNS3_TQP_STAT("rx_reuse_pg_cnt", reuse_pg_cnt),
  52         HNS3_TQP_STAT("rx_err_pkt_len", err_pkt_len),
  53         HNS3_TQP_STAT("rx_non_vld_descs", non_vld_descs),
  54         HNS3_TQP_STAT("rx_err_bd_num", err_bd_num),
  55         HNS3_TQP_STAT("rx_l2_err", l2_err),
  56         HNS3_TQP_STAT("rx_l3l4_csum_err", l3l4_csum_err),
  57 };
  58
  59 #define HNS3_RXQ_STATS_COUNT ARRAY_SIZE(hns3_rxq_stats)
  60
  61 #define HNS3_TQP_STATS_COUNT (HNS3_TXQ_STATS_COUNT + HNS3_RXQ_STATS_COUNT)
  62
  63 struct hns3_link_mode_mapping {
  64         u32 hns3_link_mode;
  65         u32 ethtool_link_mode;
  66 };
  67
  68 static const struct hns3_link_mode_mapping hns3_lm_map[] = {
  69         {HNS3_LM_FIBRE_BIT, ETHTOOL_LINK_MODE_FIBRE_BIT},
  70         {HNS3_LM_AUTONEG_BIT, ETHTOOL_LINK_MODE_Autoneg_BIT},
  71         {HNS3_LM_TP_BIT, ETHTOOL_LINK_MODE_TP_BIT},
  72         {HNS3_LM_PAUSE_BIT, ETHTOOL_LINK_MODE_Pause_BIT},
  73         {HNS3_LM_BACKPLANE_BIT, ETHTOOL_LINK_MODE_Backplane_BIT},
  74         {HNS3_LM_10BASET_HALF_BIT, ETHTOOL_LINK_MODE_10baseT_Half_BIT},
  75         {HNS3_LM_10BASET_FULL_BIT, ETHTOOL_LINK_MODE_10baseT_Full_BIT},
  76         {HNS3_LM_100BASET_HALF_BIT, ETHTOOL_LINK_MODE_100baseT_Half_BIT},
  77         {HNS3_LM_100BASET_FULL_BIT, ETHTOOL_LINK_MODE_100baseT_Full_BIT},
  78         {HNS3_LM_1000BASET_FULL_BIT, ETHTOOL_LINK_MODE_1000baseT_Full_BIT},
  79 };
  80
  81 static void hns3_driv_to_eth_caps(u32 caps, struct ethtool_link_ksettings *cmd,
  82                                   bool is_advertised)
  83 {
  84         int i;
  85
  86         for (i = 0; i < ARRAY_SIZE(hns3_lm_map); i++) {
  87                 if (!(caps & hns3_lm_map[i].hns3_link_mode))
  88                         continue;
  89
  90                 if (is_advertised) {
  91                         ethtool_link_ksettings_zero_link_mode(cmd,
  92                                                               advertising);
  93                         __set_bit(hns3_lm_map[i].ethtool_link_mode,
  94                                   cmd->link_modes.advertising);
  95                 } else {
  96                         ethtool_link_ksettings_zero_link_mode(cmd,
  97                                                               supported);
  98                         __set_bit(hns3_lm_map[i].ethtool_link_mode,
  99                                   cmd->link_modes.supported);
 100                 }
 101         }
 102 }
 103
 104 static int hns3_get_sset_count(struct net_device *netdev, int stringset)
 105 {
 106         struct hns3_nic_priv *priv = netdev_priv(netdev);
 107         struct hnae3_handle *h = priv->ae_handle;
 108         const struct hnae3_ae_ops *ops = h->ae_algo->ops;
 109
 110         if (!ops->get_sset_count)
 111                 return -EOPNOTSUPP;
 112
 113         switch (stringset) {
 114         case ETH_SS_STATS:
 115                 return ((HNS3_TQP_STATS_COUNT * h->kinfo.num_tqps) +
 116                         ops->get_sset_count(h, stringset));
 117
 118         case ETH_SS_TEST:
 119                 return ops->get_sset_count(h, stringset);
 120         }
 121
 122         return 0;
 123 }
 124
 125 static void *hns3_update_strings(u8 *data, const struct hns3_stats *stats,
 126                                  u32 stat_count, u32 num_tqps)
 127 {
 128 #define MAX_PREFIX_SIZE (8 + 4)
 129         u32 size_left;
 130         u32 i, j;
 131         u32 n1;
 132
 133         for (i = 0; i < num_tqps; i++) {
 134                 for (j = 0; j < stat_count; j++) {
 135                         data[ETH_GSTRING_LEN - 1] = '\0';
 136
 137                         /* first, prepend the prefix string */
 138                         n1 = snprintf(data, MAX_PREFIX_SIZE, "rcb_q%d_", i);
 139                         n1 = min_t(uint, n1, MAX_PREFIX_SIZE - 1);
 140                         size_left = (ETH_GSTRING_LEN - 1) - n1;
 141
 142                         /* now, concatenate the stats string to it */
 143                         strncat(data, stats[j].stats_string, size_left);
 144                         data += ETH_GSTRING_LEN;
 145                 }
 146         }
 147
 148         return data;
 149 }
 150
 151 static u8 *hns3_get_strings_tqps(struct hnae3_handle *handle, u8 *data)
 152 {
 153         struct hnae3_knic_private_info *kinfo = &handle->kinfo;
 154
 155         /* get strings for Tx */
 156         data = hns3_update_strings(data, hns3_txq_stats, HNS3_TXQ_STATS_COUNT,
 157                                    kinfo->num_tqps);
 158
 159         /* get strings for Rx */
 160         data = hns3_update_strings(data, hns3_rxq_stats, HNS3_RXQ_STATS_COUNT,
 161                                    kinfo->num_tqps);
 162
 163         return data;
 164 }
 165
 166 static void hns3_get_strings(struct net_device *netdev, u32 stringset, u8 *data)
 167 {
 168         struct hns3_nic_priv *priv = netdev_priv(netdev);
 169         struct hnae3_handle *h = priv->ae_handle;
 170         const struct hnae3_ae_ops *ops = h->ae_algo->ops;
 171         char *buff = (char *)data;
 172
 173         if (!ops->get_strings)
 174                 return;
 175
 176         switch (stringset) {
 177         case ETH_SS_STATS:
 178                 buff = hns3_get_strings_tqps(h, buff);
 179                 h->ae_algo->ops->get_strings(h, stringset, (u8 *)buff);
 180                 break;
 181         case ETH_SS_TEST:
 182                 ops->get_strings(h, stringset, data);
 183                 break;
 184         }
 185 }
 186
 187 static u64 *hns3_get_stats_tqps(struct hnae3_handle *handle, u64 *data)
 188 {
 189         struct hns3_nic_priv *nic_priv = (struct hns3_nic_priv *)handle->priv;
 190         struct hnae3_knic_private_info *kinfo = &handle->kinfo;
 191         struct hns3_enet_ring *ring;
 192         u8 *stat;
 193         int i, j;
 194
 195         /* get stats for Tx */
 196         for (i = 0; i < kinfo->num_tqps; i++) {
 197                 ring = nic_priv->ring_data[i].ring;
 198                 for (j = 0; j < HNS3_TXQ_STATS_COUNT; j++) {
 199                         stat = (u8 *)ring + hns3_txq_stats[j].stats_offset;
 200                         *data++ = *(u64 *)stat;
 201                 }
 202         }
 203
 204         /* get stats for Rx */
 205         for (i = 0; i < kinfo->num_tqps; i++) {
 206                 ring = nic_priv->ring_data[i + kinfo->num_tqps].ring;
 207                 for (j = 0; j < HNS3_RXQ_STATS_COUNT; j++) {
 208                         stat = (u8 *)ring + hns3_rxq_stats[j].stats_offset;
 209                         *data++ = *(u64 *)stat;
 210                 }
 211         }
 212
 213         return data;
 214 }
 215
 216 /* hns3_get_stats - get detail statistics.
 217  * @netdev: net device
 218  * @stats: statistics info.
 219  * @data: statistics data.
 220  */
 221 void hns3_get_stats(struct net_device *netdev, struct ethtool_stats *stats,
 222                     u64 *data)
 223 {
 224         struct hns3_nic_priv *priv = netdev_priv(netdev);
 225         struct hnae3_handle *h = priv->ae_handle;
 226         u64 *p = data;
 227
 228         if (!h->ae_algo->ops->get_stats || !h->ae_algo->ops->update_stats) {
 229                 netdev_err(netdev, "could not get any statistics\n");
 230                 return;
 231         }
 232
 233         h->ae_algo->ops->update_stats(h, &netdev->stats);
 234
 235         /* get per-queue stats */
 236         p = hns3_get_stats_tqps(h, p);
 237
 238         /* get MAC & other misc hardware stats */
 239         h->ae_algo->ops->get_stats(h, p);
 240 }
 241
 242 static void hns3_get_drvinfo(struct net_device *netdev,
 243                              struct ethtool_drvinfo *drvinfo)
 244 {
 245         struct hns3_nic_priv *priv = netdev_priv(netdev);
 246         struct hnae3_handle *h = priv->ae_handle;
 247
 248         strncpy(drvinfo->version, hns3_driver_version,
 249                 sizeof(drvinfo->version));
 250         drvinfo->version[sizeof(drvinfo->version) - 1] = '\0';
 251
 252         strncpy(drvinfo->driver, h->pdev->driver->name,
 253                 sizeof(drvinfo->driver));
 254         drvinfo->driver[sizeof(drvinfo->driver) - 1] = '\0';
 255
 256         strncpy(drvinfo->bus_info, pci_name(h->pdev),
 257                 sizeof(drvinfo->bus_info));
 258         drvinfo->bus_info[ETHTOOL_BUSINFO_LEN - 1] = '\0';
 259
 260         snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version), "0x%08x",
 261                  priv->ae_handle->ae_algo->ops->get_fw_version(h));
 262 }
 263
 264 static u32 hns3_get_link(struct net_device *netdev)
 265 {
 266         struct hns3_nic_priv *priv = netdev_priv(netdev);
 267         struct hnae3_handle *h;
 268
 269         h = priv->ae_handle;
 270
 271         if (h->ae_algo && h->ae_algo->ops && h->ae_algo->ops->get_status)
 272                 return h->ae_algo->ops->get_status(h);
 273         else
 274                 return 0;
 275 }
 276
 277 static void hns3_get_ringparam(struct net_device *netdev,
 278                                struct ethtool_ringparam *param)
 279 {
 280         struct hns3_nic_priv *priv = netdev_priv(netdev);
 281         int queue_num = priv->ae_handle->kinfo.num_tqps;
 282
 283         param->tx_max_pending = HNS3_RING_MAX_PENDING;
 284         param->rx_max_pending = HNS3_RING_MAX_PENDING;
 285
 286         param->tx_pending = priv->ring_data[0].ring->desc_num;
 287         param->rx_pending = priv->ring_data[queue_num].ring->desc_num;
 288 }
 289
 290 static void hns3_get_pauseparam(struct net_device *netdev,
 291                                 struct ethtool_pauseparam *param)
 292 {
 293         struct hns3_nic_priv *priv = netdev_priv(netdev);
 294         struct hnae3_handle *h = priv->ae_handle;
 295
 296         if (h->ae_algo && h->ae_algo->ops && h->ae_algo->ops->get_pauseparam)
 297                 h->ae_algo->ops->get_pauseparam(h, &param->autoneg,
 298                         &param->rx_pause, &param->tx_pause);
 299 }
 300
 301 static int hns3_get_link_ksettings(struct net_device *netdev,
 302                                    struct ethtool_link_ksettings *cmd)
 303 {
 304         struct hns3_nic_priv *priv = netdev_priv(netdev);
 305         struct hnae3_handle *h = priv->ae_handle;
 306         u32 supported_caps;
 307         u32 advertised_caps;
 308         u8 media_type = HNAE3_MEDIA_TYPE_UNKNOWN;
 309         u8 link_stat;
 310         u8 auto_neg;
 311         u8 duplex;
 312         u32 speed;
 313
 314         if (!h->ae_algo || !h->ae_algo->ops)
 315                 return -EOPNOTSUPP;
 316
 317         /* 1.auto_neg & speed & duplex from cmd */
 318         if (h->ae_algo->ops->get_ksettings_an_result) {
 319                 h->ae_algo->ops->get_ksettings_an_result(h, &auto_neg,
 320                                                          &speed, &duplex);
 321                 cmd->base.autoneg = auto_neg;
 322                 cmd->base.speed = speed;
 323                 cmd->base.duplex = duplex;
 324
 325                 link_stat = hns3_get_link(netdev);
 326                 if (!link_stat) {
 327                         cmd->base.speed = (u32)SPEED_UNKNOWN;
 328                         cmd->base.duplex = DUPLEX_UNKNOWN;
 329                 }
 330         }
 331
 332         /* 2.media_type get from bios parameter block */
 333         if (h->ae_algo->ops->get_media_type) {
 334                 h->ae_algo->ops->get_media_type(h, &media_type);
 335
 336                 switch (media_type) {
 337                 case HNAE3_MEDIA_TYPE_FIBER:
 338                         cmd->base.port = PORT_FIBRE;
 339                         supported_caps = HNS3_LM_FIBRE_BIT |
 340                                          HNS3_LM_AUTONEG_BIT |
 341                                          HNS3_LM_PAUSE_BIT |
 342                                          HNS3_LM_1000BASET_FULL_BIT;
 343
 344                         advertised_caps = supported_caps;
 345                         break;
 346                 case HNAE3_MEDIA_TYPE_COPPER:
 347                         cmd->base.port = PORT_TP;
 348                         supported_caps = HNS3_LM_TP_BIT |
 349                                          HNS3_LM_AUTONEG_BIT |
 350                                          HNS3_LM_PAUSE_BIT |
 351                                          HNS3_LM_1000BASET_FULL_BIT |
 352                                          HNS3_LM_100BASET_FULL_BIT |
 353                                          HNS3_LM_100BASET_HALF_BIT |
 354                                          HNS3_LM_10BASET_FULL_BIT |
 355                                          HNS3_LM_10BASET_HALF_BIT;
 356                         advertised_caps = supported_caps;
 357                         break;
 358                 case HNAE3_MEDIA_TYPE_BACKPLANE:
 359                         cmd->base.port = PORT_NONE;
 360                         supported_caps = HNS3_LM_BACKPLANE_BIT |
 361                                          HNS3_LM_PAUSE_BIT |
 362                                          HNS3_LM_AUTONEG_BIT |
 363                                          HNS3_LM_1000BASET_FULL_BIT |
 364                                          HNS3_LM_100BASET_FULL_BIT |
 365                                          HNS3_LM_100BASET_HALF_BIT |
 366                                          HNS3_LM_10BASET_FULL_BIT |
 367                                          HNS3_LM_10BASET_HALF_BIT;
 368
 369                         advertised_caps = supported_caps;
 370                         break;
 371                 case HNAE3_MEDIA_TYPE_UNKNOWN:
 372                 default:
 373                         cmd->base.port = PORT_OTHER;
 374                         supported_caps = 0;
 375                         advertised_caps = 0;
 376                         break;
 377                 }
 378
 379                 if (!cmd->base.autoneg)
 380                         advertised_caps &= ~HNS3_LM_AUTONEG_BIT;
 381
 382                 /* now, map driver link modes to ethtool link modes */
 383                 hns3_driv_to_eth_caps(supported_caps, cmd, false);
 384                 hns3_driv_to_eth_caps(advertised_caps, cmd, true);
 385         }
 386
 387         /* 3.mdix_ctrl&mdix get from phy reg */
 388         if (h->ae_algo->ops->get_mdix_mode)
 389                 h->ae_algo->ops->get_mdix_mode(h, &cmd->base.eth_tp_mdix_ctrl,
 390                                                &cmd->base.eth_tp_mdix);
 391         /* 4.mdio_support */
 392         cmd->base.mdio_support = ETH_MDIO_SUPPORTS_C22;
 393
 394         return 0;
 395 }
 396
 397 static u32 hns3_get_rss_key_size(struct net_device *netdev)
 398 {
 399         struct hns3_nic_priv *priv = netdev_priv(netdev);
 400         struct hnae3_handle *h = priv->ae_handle;
 401
 402         if (!h->ae_algo || !h->ae_algo->ops ||
 403             !h->ae_algo->ops->get_rss_key_size)
 404                 return -EOPNOTSUPP;
 405
 406         return h->ae_algo->ops->get_rss_key_size(h);
 407 }
 408
 409 static u32 hns3_get_rss_indir_size(struct net_device *netdev)
 410 {
 411         struct hns3_nic_priv *priv = netdev_priv(netdev);
 412         struct hnae3_handle *h = priv->ae_handle;
 413
 414         if (!h->ae_algo || !h->ae_algo->ops ||
 415             !h->ae_algo->ops->get_rss_indir_size)
 416                 return -EOPNOTSUPP;
 417
 418         return h->ae_algo->ops->get_rss_indir_size(h);
 419 }
 420
 421 static int hns3_get_rss(struct net_device *netdev, u32 *indir, u8 *key,
 422                         u8 *hfunc)
 423 {
 424         struct hns3_nic_priv *priv = netdev_priv(netdev);
 425         struct hnae3_handle *h = priv->ae_handle;
 426
 427         if (!h->ae_algo || !h->ae_algo->ops || !h->ae_algo->ops->get_rss)
 428                 return -EOPNOTSUPP;
 429
 430         return h->ae_algo->ops->get_rss(h, indir, key, hfunc);
 431 }
 432
 433 static int hns3_set_rss(struct net_device *netdev, const u32 *indir,
 434                         const u8 *key, const u8 hfunc)
 435 {
 436         struct hns3_nic_priv *priv = netdev_priv(netdev);
 437         struct hnae3_handle *h = priv->ae_handle;
 438
 439         if (!h->ae_algo || !h->ae_algo->ops || !h->ae_algo->ops->set_rss)
 440                 return -EOPNOTSUPP;
 441
 442         /* currently we only support Toeplitz hash */
 443         if ((hfunc != ETH_RSS_HASH_NO_CHANGE) && (hfunc != ETH_RSS_HASH_TOP)) {
 444                 netdev_err(netdev,
 445                            "hash func not supported (only Toeplitz hash)\n");
 446                 return -EOPNOTSUPP;
 447         }
 448         if (!indir) {
 449                 netdev_err(netdev,
 450                            "set rss failed for indir is empty\n");
 451                 return -EOPNOTSUPP;
 452         }
 453
 454         return h->ae_algo->ops->set_rss(h, indir, key, hfunc);
 455 }
 456
 457 static int hns3_get_rxnfc(struct net_device *netdev,
 458                           struct ethtool_rxnfc *cmd,
 459                           u32 *rule_locs)
 460 {
 461         struct hns3_nic_priv *priv = netdev_priv(netdev);
 462         struct hnae3_handle *h = priv->ae_handle;
 463
 464         if (!h->ae_algo || !h->ae_algo->ops || !h->ae_algo->ops->get_tc_size)
 465                 return -EOPNOTSUPP;
 466
 467         switch (cmd->cmd) {
 468         case ETHTOOL_GRXRINGS:
 469                 cmd->data = h->ae_algo->ops->get_tc_size(h);
 470                 break;
 471         default:
 472                 return -EOPNOTSUPP;
 473         }
 474
 475         return 0;
 476 }
 477
 478 static const struct ethtool_ops hns3_ethtool_ops = {
 479         .get_drvinfo = hns3_get_drvinfo,
 480         .get_link = hns3_get_link,
 481         .get_ringparam = hns3_get_ringparam,
 482         .get_pauseparam = hns3_get_pauseparam,
 483         .get_strings = hns3_get_strings,
 484         .get_ethtool_stats = hns3_get_stats,
 485         .get_sset_count = hns3_get_sset_count,
 486         .get_rxnfc = hns3_get_rxnfc,
 487         .get_rxfh_key_size = hns3_get_rss_key_size,
 488         .get_rxfh_indir_size = hns3_get_rss_indir_size,
 489         .get_rxfh = hns3_get_rss,
 490         .set_rxfh = hns3_set_rss,
 491         .get_link_ksettings = hns3_get_link_ksettings,
 492 };
 493
 494 void hns3_ethtool_set_ops(struct net_device *netdev)
 495 {
 496         netdev->ethtool_ops = &hns3_ethtool_ops;
 497 }