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