drivers/net/ethernet/mellanox/mlx5/core/en_rep.c

   1 /*
   2  * Copyright (c) 2016, Mellanox Technologies. All rights reserved.
   3  *
   4  * This software is available to you under a choice of one of two
   5  * licenses.  You may choose to be licensed under the terms of the GNU
   6  * General Public License (GPL) Version 2, available from the file
   7  * COPYING in the main directory of this source tree, or the
   8  * OpenIB.org BSD license below:
   9  *
  10  *     Redistribution and use in source and binary forms, with or
  11  *     without modification, are permitted provided that the following
  12  *     conditions are met:
  13  *
  14  *      - Redistributions of source code must retain the above
  15  *        copyright notice, this list of conditions and the following
  16  *        disclaimer.
  17  *
  18  *      - Redistributions in binary form must reproduce the above
  19  *        copyright notice, this list of conditions and the following
  20  *        disclaimer in the documentation and/or other materials
  21  *        provided with the distribution.
  22  *
  23  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  24  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  25  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  26  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  27  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  28  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  29  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  30  * SOFTWARE.
  31  */
  32
  33 #include <generated/utsrelease.h>
  34 #include <linux/mlx5/fs.h>
  35 #include <net/switchdev.h>
  36 #include <net/pkt_cls.h>
  37 #include <net/act_api.h>
  38 #include <net/netevent.h>
  39 #include <net/arp.h>
  40 #include <net/devlink.h>
  41
  42 #include "eswitch.h"
  43 #include "en.h"
  44 #include "en_rep.h"
  45 #include "en_tc.h"
  46 #include "en/tc_tun.h"
  47 #include "fs_core.h"
  48 #include "lib/port_tun.h"
  49
  50 #define MLX5E_REP_PARAMS_DEF_LOG_SQ_SIZE \
  51         max(0x7, MLX5E_PARAMS_MINIMUM_LOG_SQ_SIZE)
  52 #define MLX5E_REP_PARAMS_DEF_NUM_CHANNELS 1
  53
  54 static const char mlx5e_rep_driver_name[] = "mlx5e_rep";
  55
  56 struct mlx5e_rep_indr_block_priv {
  57         struct net_device *netdev;
  58         struct mlx5e_rep_priv *rpriv;
  59
  60         struct list_head list;
  61 };
  62
  63 static void mlx5e_rep_indr_unregister_block(struct mlx5e_rep_priv *rpriv,
  64                                             struct net_device *netdev);
  65
  66 static void mlx5e_rep_get_drvinfo(struct net_device *dev,
  67                                   struct ethtool_drvinfo *drvinfo)
  68 {
  69         struct mlx5e_priv *priv = netdev_priv(dev);
  70         struct mlx5_core_dev *mdev = priv->mdev;
  71
  72         strlcpy(drvinfo->driver, mlx5e_rep_driver_name,
  73                 sizeof(drvinfo->driver));
  74         strlcpy(drvinfo->version, UTS_RELEASE, sizeof(drvinfo->version));
  75         snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
  76                  "%d.%d.%04d (%.16s)",
  77                  fw_rev_maj(mdev), fw_rev_min(mdev),
  78                  fw_rev_sub(mdev), mdev->board_id);
  79 }
  80
  81 static void mlx5e_uplink_rep_get_drvinfo(struct net_device *dev,
  82                                          struct ethtool_drvinfo *drvinfo)
  83 {
  84         struct mlx5e_priv *priv = netdev_priv(dev);
  85
  86         mlx5e_rep_get_drvinfo(dev, drvinfo);
  87         strlcpy(drvinfo->bus_info, pci_name(priv->mdev->pdev),
  88                 sizeof(drvinfo->bus_info));
  89 }
  90
  91 static const struct counter_desc sw_rep_stats_desc[] = {
  92         { MLX5E_DECLARE_STAT(struct mlx5e_sw_stats, rx_packets) },
  93         { MLX5E_DECLARE_STAT(struct mlx5e_sw_stats, rx_bytes) },
  94         { MLX5E_DECLARE_STAT(struct mlx5e_sw_stats, tx_packets) },
  95         { MLX5E_DECLARE_STAT(struct mlx5e_sw_stats, tx_bytes) },
  96 };
  97
  98 struct vport_stats {
  99         u64 vport_rx_packets;
 100         u64 vport_tx_packets;
 101         u64 vport_rx_bytes;
 102         u64 vport_tx_bytes;
 103 };
 104
 105 static const struct counter_desc vport_rep_stats_desc[] = {
 106         { MLX5E_DECLARE_STAT(struct vport_stats, vport_rx_packets) },
 107         { MLX5E_DECLARE_STAT(struct vport_stats, vport_rx_bytes) },
 108         { MLX5E_DECLARE_STAT(struct vport_stats, vport_tx_packets) },
 109         { MLX5E_DECLARE_STAT(struct vport_stats, vport_tx_bytes) },
 110 };
 111
 112 #define NUM_VPORT_REP_SW_COUNTERS ARRAY_SIZE(sw_rep_stats_desc)
 113 #define NUM_VPORT_REP_HW_COUNTERS ARRAY_SIZE(vport_rep_stats_desc)
 114
 115 static void mlx5e_rep_get_strings(struct net_device *dev,
 116                                   u32 stringset, uint8_t *data)
 117 {
 118         int i, j;
 119
 120         switch (stringset) {
 121         case ETH_SS_STATS:
 122                 for (i = 0; i < NUM_VPORT_REP_SW_COUNTERS; i++)
 123                         strcpy(data + (i * ETH_GSTRING_LEN),
 124                                sw_rep_stats_desc[i].format);
 125                 for (j = 0; j < NUM_VPORT_REP_HW_COUNTERS; j++, i++)
 126                         strcpy(data + (i * ETH_GSTRING_LEN),
 127                                vport_rep_stats_desc[j].format);
 128                 break;
 129         }
 130 }
 131
 132 static void mlx5e_rep_update_hw_counters(struct mlx5e_priv *priv)
 133 {
 134         struct mlx5_eswitch *esw = priv->mdev->priv.eswitch;
 135         struct mlx5e_rep_priv *rpriv = priv->ppriv;
 136         struct mlx5_eswitch_rep *rep = rpriv->rep;
 137         struct rtnl_link_stats64 *vport_stats;
 138         struct ifla_vf_stats vf_stats;
 139         int err;
 140
 141         err = mlx5_eswitch_get_vport_stats(esw, rep->vport, &vf_stats);
 142         if (err) {
 143                 pr_warn("vport %d error %d reading stats\n", rep->vport, err);
 144                 return;
 145         }
 146
 147         vport_stats = &priv->stats.vf_vport;
 148         /* flip tx/rx as we are reporting the counters for the switch vport */
 149         vport_stats->rx_packets = vf_stats.tx_packets;
 150         vport_stats->rx_bytes   = vf_stats.tx_bytes;
 151         vport_stats->tx_packets = vf_stats.rx_packets;
 152         vport_stats->tx_bytes   = vf_stats.rx_bytes;
 153 }
 154
 155 static void mlx5e_uplink_rep_update_hw_counters(struct mlx5e_priv *priv)
 156 {
 157         struct mlx5e_pport_stats *pstats = &priv->stats.pport;
 158         struct rtnl_link_stats64 *vport_stats;
 159
 160         mlx5e_grp_802_3_update_stats(priv);
 161
 162         vport_stats = &priv->stats.vf_vport;
 163
 164         vport_stats->rx_packets = PPORT_802_3_GET(pstats, a_frames_received_ok);
 165         vport_stats->rx_bytes   = PPORT_802_3_GET(pstats, a_octets_received_ok);
 166         vport_stats->tx_packets = PPORT_802_3_GET(pstats, a_frames_transmitted_ok);
 167         vport_stats->tx_bytes   = PPORT_802_3_GET(pstats, a_octets_transmitted_ok);
 168 }
 169
 170 static void mlx5e_rep_update_sw_counters(struct mlx5e_priv *priv)
 171 {
 172         struct mlx5e_sw_stats *s = &priv->stats.sw;
 173         struct rtnl_link_stats64 stats64 = {};
 174
 175         memset(s, 0, sizeof(*s));
 176         mlx5e_fold_sw_stats64(priv, &stats64);
 177
 178         s->rx_packets = stats64.rx_packets;
 179         s->rx_bytes   = stats64.rx_bytes;
 180         s->tx_packets = stats64.tx_packets;
 181         s->tx_bytes   = stats64.tx_bytes;
 182         s->tx_queue_dropped = stats64.tx_dropped;
 183 }
 184
 185 static void mlx5e_rep_get_ethtool_stats(struct net_device *dev,
 186                                         struct ethtool_stats *stats, u64 *data)
 187 {
 188         struct mlx5e_priv *priv = netdev_priv(dev);
 189         int i, j;
 190
 191         if (!data)
 192                 return;
 193
 194         mutex_lock(&priv->state_lock);
 195         mlx5e_rep_update_sw_counters(priv);
 196         priv->profile->update_stats(priv);
 197         mutex_unlock(&priv->state_lock);
 198
 199         for (i = 0; i < NUM_VPORT_REP_SW_COUNTERS; i++)
 200                 data[i] = MLX5E_READ_CTR64_CPU(&priv->stats.sw,
 201                                                sw_rep_stats_desc, i);
 202
 203         for (j = 0; j < NUM_VPORT_REP_HW_COUNTERS; j++, i++)
 204                 data[i] = MLX5E_READ_CTR64_CPU(&priv->stats.vf_vport,
 205                                                vport_rep_stats_desc, j);
 206 }
 207
 208 static int mlx5e_rep_get_sset_count(struct net_device *dev, int sset)
 209 {
 210         switch (sset) {
 211         case ETH_SS_STATS:
 212                 return NUM_VPORT_REP_SW_COUNTERS + NUM_VPORT_REP_HW_COUNTERS;
 213         default:
 214                 return -EOPNOTSUPP;
 215         }
 216 }
 217
 218 static void mlx5e_rep_get_ringparam(struct net_device *dev,
 219                                 struct ethtool_ringparam *param)
 220 {
 221         struct mlx5e_priv *priv = netdev_priv(dev);
 222
 223         mlx5e_ethtool_get_ringparam(priv, param);
 224 }
 225
 226 static int mlx5e_rep_set_ringparam(struct net_device *dev,
 227                                struct ethtool_ringparam *param)
 228 {
 229         struct mlx5e_priv *priv = netdev_priv(dev);
 230
 231         return mlx5e_ethtool_set_ringparam(priv, param);
 232 }
 233
 234 static int mlx5e_replace_rep_vport_rx_rule(struct mlx5e_priv *priv,
 235                                            struct mlx5_flow_destination *dest)
 236 {
 237         struct mlx5_eswitch *esw = priv->mdev->priv.eswitch;
 238         struct mlx5e_rep_priv *rpriv = priv->ppriv;
 239         struct mlx5_eswitch_rep *rep = rpriv->rep;
 240         struct mlx5_flow_handle *flow_rule;
 241
 242         flow_rule = mlx5_eswitch_create_vport_rx_rule(esw,
 243                                                       rep->vport,
 244                                                       dest);
 245         if (IS_ERR(flow_rule))
 246                 return PTR_ERR(flow_rule);
 247
 248         mlx5_del_flow_rules(rpriv->vport_rx_rule);
 249         rpriv->vport_rx_rule = flow_rule;
 250         return 0;
 251 }
 252
 253 static void mlx5e_rep_get_channels(struct net_device *dev,
 254                                    struct ethtool_channels *ch)
 255 {
 256         struct mlx5e_priv *priv = netdev_priv(dev);
 257
 258         mlx5e_ethtool_get_channels(priv, ch);
 259 }
 260
 261 static int mlx5e_rep_set_channels(struct net_device *dev,
 262                                   struct ethtool_channels *ch)
 263 {
 264         struct mlx5e_priv *priv = netdev_priv(dev);
 265         u16 curr_channels_amount = priv->channels.params.num_channels;
 266         u32 new_channels_amount = ch->combined_count;
 267         struct mlx5_flow_destination new_dest;
 268         int err = 0;
 269
 270         err = mlx5e_ethtool_set_channels(priv, ch);
 271         if (err)
 272                 return err;
 273
 274         if (curr_channels_amount == 1 && new_channels_amount > 1) {
 275                 new_dest.type = MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE;
 276                 new_dest.ft = priv->fs.ttc.ft.t;
 277         } else if (new_channels_amount == 1 && curr_channels_amount > 1) {
 278                 new_dest.type = MLX5_FLOW_DESTINATION_TYPE_TIR;
 279                 new_dest.tir_num = priv->direct_tir[0].tirn;
 280         } else {
 281                 return 0;
 282         }
 283
 284         err = mlx5e_replace_rep_vport_rx_rule(priv, &new_dest);
 285         if (err) {
 286                 netdev_warn(priv->netdev, "Failed to update vport rx rule, when going from (%d) channels to (%d) channels\n",
 287                             curr_channels_amount, new_channels_amount);
 288                 return err;
 289         }
 290
 291         return 0;
 292 }
 293
 294 static int mlx5e_rep_get_coalesce(struct net_device *netdev,
 295                                   struct ethtool_coalesce *coal)
 296 {
 297         struct mlx5e_priv *priv = netdev_priv(netdev);
 298
 299         return mlx5e_ethtool_get_coalesce(priv, coal);
 300 }
 301
 302 static int mlx5e_rep_set_coalesce(struct net_device *netdev,
 303                                   struct ethtool_coalesce *coal)
 304 {
 305         struct mlx5e_priv *priv = netdev_priv(netdev);
 306
 307         return mlx5e_ethtool_set_coalesce(priv, coal);
 308 }
 309
 310 static u32 mlx5e_rep_get_rxfh_key_size(struct net_device *netdev)
 311 {
 312         struct mlx5e_priv *priv = netdev_priv(netdev);
 313
 314         return mlx5e_ethtool_get_rxfh_key_size(priv);
 315 }
 316
 317 static u32 mlx5e_rep_get_rxfh_indir_size(struct net_device *netdev)
 318 {
 319         struct mlx5e_priv *priv = netdev_priv(netdev);
 320
 321         return mlx5e_ethtool_get_rxfh_indir_size(priv);
 322 }
 323
 324 static void mlx5e_uplink_rep_get_pauseparam(struct net_device *netdev,
 325                                             struct ethtool_pauseparam *pauseparam)
 326 {
 327         struct mlx5e_priv *priv = netdev_priv(netdev);
 328
 329         mlx5e_ethtool_get_pauseparam(priv, pauseparam);
 330 }
 331
 332 static int mlx5e_uplink_rep_set_pauseparam(struct net_device *netdev,
 333                                            struct ethtool_pauseparam *pauseparam)
 334 {
 335         struct mlx5e_priv *priv = netdev_priv(netdev);
 336
 337         return mlx5e_ethtool_set_pauseparam(priv, pauseparam);
 338 }
 339
 340 static int mlx5e_uplink_rep_get_link_ksettings(struct net_device *netdev,
 341                                                struct ethtool_link_ksettings *link_ksettings)
 342 {
 343         struct mlx5e_priv *priv = netdev_priv(netdev);
 344
 345         return mlx5e_ethtool_get_link_ksettings(priv, link_ksettings);
 346 }
 347
 348 static int mlx5e_uplink_rep_set_link_ksettings(struct net_device *netdev,
 349                                                const struct ethtool_link_ksettings *link_ksettings)
 350 {
 351         struct mlx5e_priv *priv = netdev_priv(netdev);
 352
 353         return mlx5e_ethtool_set_link_ksettings(priv, link_ksettings);
 354 }
 355
 356 static const struct ethtool_ops mlx5e_rep_ethtool_ops = {
 357         .get_drvinfo       = mlx5e_rep_get_drvinfo,
 358         .get_link          = ethtool_op_get_link,
 359         .get_strings       = mlx5e_rep_get_strings,
 360         .get_sset_count    = mlx5e_rep_get_sset_count,
 361         .get_ethtool_stats = mlx5e_rep_get_ethtool_stats,
 362         .get_ringparam     = mlx5e_rep_get_ringparam,
 363         .set_ringparam     = mlx5e_rep_set_ringparam,
 364         .get_channels      = mlx5e_rep_get_channels,
 365         .set_channels      = mlx5e_rep_set_channels,
 366         .get_coalesce      = mlx5e_rep_get_coalesce,
 367         .set_coalesce      = mlx5e_rep_set_coalesce,
 368         .get_rxfh_key_size   = mlx5e_rep_get_rxfh_key_size,
 369         .get_rxfh_indir_size = mlx5e_rep_get_rxfh_indir_size,
 370 };
 371
 372 static const struct ethtool_ops mlx5e_uplink_rep_ethtool_ops = {
 373         .get_drvinfo       = mlx5e_uplink_rep_get_drvinfo,
 374         .get_link          = ethtool_op_get_link,
 375         .get_strings       = mlx5e_rep_get_strings,
 376         .get_sset_count    = mlx5e_rep_get_sset_count,
 377         .get_ethtool_stats = mlx5e_rep_get_ethtool_stats,
 378         .get_ringparam     = mlx5e_rep_get_ringparam,
 379         .set_ringparam     = mlx5e_rep_set_ringparam,
 380         .get_channels      = mlx5e_rep_get_channels,
 381         .set_channels      = mlx5e_rep_set_channels,
 382         .get_coalesce      = mlx5e_rep_get_coalesce,
 383         .set_coalesce      = mlx5e_rep_set_coalesce,
 384         .get_link_ksettings = mlx5e_uplink_rep_get_link_ksettings,
 385         .set_link_ksettings = mlx5e_uplink_rep_set_link_ksettings,
 386         .get_rxfh_key_size   = mlx5e_rep_get_rxfh_key_size,
 387         .get_rxfh_indir_size = mlx5e_rep_get_rxfh_indir_size,
 388         .get_pauseparam    = mlx5e_uplink_rep_get_pauseparam,
 389         .set_pauseparam    = mlx5e_uplink_rep_set_pauseparam,
 390 };
 391
 392 static int mlx5e_rep_get_port_parent_id(struct net_device *dev,
 393                                         struct netdev_phys_item_id *ppid)
 394 {
 395         struct mlx5_eswitch *esw;
 396         struct mlx5e_priv *priv;
 397         u64 parent_id;
 398
 399         priv = netdev_priv(dev);
 400         esw = priv->mdev->priv.eswitch;
 401
 402         if (esw->mode == MLX5_ESWITCH_NONE)
 403                 return -EOPNOTSUPP;
 404
 405         parent_id = mlx5_query_nic_system_image_guid(priv->mdev);
 406         ppid->id_len = sizeof(parent_id);
 407         memcpy(ppid->id, &parent_id, sizeof(parent_id));
 408
 409         return 0;
 410 }
 411
 412 static void mlx5e_sqs2vport_stop(struct mlx5_eswitch *esw,
 413                                  struct mlx5_eswitch_rep *rep)
 414 {
 415         struct mlx5e_rep_sq *rep_sq, *tmp;
 416         struct mlx5e_rep_priv *rpriv;
 417
 418         if (esw->mode != MLX5_ESWITCH_OFFLOADS)
 419                 return;
 420
 421         rpriv = mlx5e_rep_to_rep_priv(rep);
 422         list_for_each_entry_safe(rep_sq, tmp, &rpriv->vport_sqs_list, list) {
 423                 mlx5_eswitch_del_send_to_vport_rule(rep_sq->send_to_vport_rule);
 424                 list_del(&rep_sq->list);
 425                 kfree(rep_sq);
 426         }
 427 }
 428
 429 static int mlx5e_sqs2vport_start(struct mlx5_eswitch *esw,
 430                                  struct mlx5_eswitch_rep *rep,
 431                                  u32 *sqns_array, int sqns_num)
 432 {
 433         struct mlx5_flow_handle *flow_rule;
 434         struct mlx5e_rep_priv *rpriv;
 435         struct mlx5e_rep_sq *rep_sq;
 436         int err;
 437         int i;
 438
 439         if (esw->mode != MLX5_ESWITCH_OFFLOADS)
 440                 return 0;
 441
 442         rpriv = mlx5e_rep_to_rep_priv(rep);
 443         for (i = 0; i < sqns_num; i++) {
 444                 rep_sq = kzalloc(sizeof(*rep_sq), GFP_KERNEL);
 445                 if (!rep_sq) {
 446                         err = -ENOMEM;
 447                         goto out_err;
 448                 }
 449
 450                 /* Add re-inject rule to the PF/representor sqs */
 451                 flow_rule = mlx5_eswitch_add_send_to_vport_rule(esw,
 452                                                                 rep->vport,
 453                                                                 sqns_array[i]);
 454                 if (IS_ERR(flow_rule)) {
 455                         err = PTR_ERR(flow_rule);
 456                         kfree(rep_sq);
 457                         goto out_err;
 458                 }
 459                 rep_sq->send_to_vport_rule = flow_rule;
 460                 list_add(&rep_sq->list, &rpriv->vport_sqs_list);
 461         }
 462         return 0;
 463
 464 out_err:
 465         mlx5e_sqs2vport_stop(esw, rep);
 466         return err;
 467 }
 468
 469 int mlx5e_add_sqs_fwd_rules(struct mlx5e_priv *priv)
 470 {
 471         struct mlx5_eswitch *esw = priv->mdev->priv.eswitch;
 472         struct mlx5e_rep_priv *rpriv = priv->ppriv;
 473         struct mlx5_eswitch_rep *rep = rpriv->rep;
 474         struct mlx5e_channel *c;
 475         int n, tc, num_sqs = 0;
 476         int err = -ENOMEM;
 477         u32 *sqs;
 478
 479         sqs = kcalloc(priv->channels.num * priv->channels.params.num_tc, sizeof(*sqs), GFP_KERNEL);
 480         if (!sqs)
 481                 goto out;
 482
 483         for (n = 0; n < priv->channels.num; n++) {
 484                 c = priv->channels.c[n];
 485                 for (tc = 0; tc < c->num_tc; tc++)
 486                         sqs[num_sqs++] = c->sq[tc].sqn;
 487         }
 488
 489         err = mlx5e_sqs2vport_start(esw, rep, sqs, num_sqs);
 490         kfree(sqs);
 491
 492 out:
 493         if (err)
 494                 netdev_warn(priv->netdev, "Failed to add SQs FWD rules %d\n", err);
 495         return err;
 496 }
 497
 498 void mlx5e_remove_sqs_fwd_rules(struct mlx5e_priv *priv)
 499 {
 500         struct mlx5_eswitch *esw = priv->mdev->priv.eswitch;
 501         struct mlx5e_rep_priv *rpriv = priv->ppriv;
 502         struct mlx5_eswitch_rep *rep = rpriv->rep;
 503
 504         mlx5e_sqs2vport_stop(esw, rep);
 505 }
 506
 507 static void mlx5e_rep_neigh_update_init_interval(struct mlx5e_rep_priv *rpriv)
 508 {
 509 #if IS_ENABLED(CONFIG_IPV6)
 510         unsigned long ipv6_interval = NEIGH_VAR(&nd_tbl.parms,
 511                                                 DELAY_PROBE_TIME);
 512 #else
 513         unsigned long ipv6_interval = ~0UL;
 514 #endif
 515         unsigned long ipv4_interval = NEIGH_VAR(&arp_tbl.parms,
 516                                                 DELAY_PROBE_TIME);
 517         struct net_device *netdev = rpriv->netdev;
 518         struct mlx5e_priv *priv = netdev_priv(netdev);
 519
 520         rpriv->neigh_update.min_interval = min_t(unsigned long, ipv6_interval, ipv4_interval);
 521         mlx5_fc_update_sampling_interval(priv->mdev, rpriv->neigh_update.min_interval);
 522 }
 523
 524 void mlx5e_rep_queue_neigh_stats_work(struct mlx5e_priv *priv)
 525 {
 526         struct mlx5e_rep_priv *rpriv = priv->ppriv;
 527         struct mlx5e_neigh_update_table *neigh_update = &rpriv->neigh_update;
 528
 529         mlx5_fc_queue_stats_work(priv->mdev,
 530                                  &neigh_update->neigh_stats_work,
 531                                  neigh_update->min_interval);
 532 }
 533
 534 static void mlx5e_rep_neigh_stats_work(struct work_struct *work)
 535 {
 536         struct mlx5e_rep_priv *rpriv = container_of(work, struct mlx5e_rep_priv,
 537                                                     neigh_update.neigh_stats_work.work);
 538         struct net_device *netdev = rpriv->netdev;
 539         struct mlx5e_priv *priv = netdev_priv(netdev);
 540         struct mlx5e_neigh_hash_entry *nhe;
 541
 542         rtnl_lock();
 543         if (!list_empty(&rpriv->neigh_update.neigh_list))
 544                 mlx5e_rep_queue_neigh_stats_work(priv);
 545
 546         list_for_each_entry(nhe, &rpriv->neigh_update.neigh_list, neigh_list)
 547                 mlx5e_tc_update_neigh_used_value(nhe);
 548
 549         rtnl_unlock();
 550 }
 551
 552 static void mlx5e_rep_neigh_entry_hold(struct mlx5e_neigh_hash_entry *nhe)
 553 {
 554         refcount_inc(&nhe->refcnt);
 555 }
 556
 557 static void mlx5e_rep_neigh_entry_release(struct mlx5e_neigh_hash_entry *nhe)
 558 {
 559         if (refcount_dec_and_test(&nhe->refcnt))
 560                 kfree(nhe);
 561 }
 562
 563 static void mlx5e_rep_update_flows(struct mlx5e_priv *priv,
 564                                    struct mlx5e_encap_entry *e,
 565                                    bool neigh_connected,
 566                                    unsigned char ha[ETH_ALEN])
 567 {
 568         struct ethhdr *eth = (struct ethhdr *)e->encap_header;
 569
 570         ASSERT_RTNL();
 571
 572         if ((e->flags & MLX5_ENCAP_ENTRY_VALID) &&
 573             (!neigh_connected || !ether_addr_equal(e->h_dest, ha)))
 574                 mlx5e_tc_encap_flows_del(priv, e);
 575
 576         if (neigh_connected && !(e->flags & MLX5_ENCAP_ENTRY_VALID)) {
 577                 ether_addr_copy(e->h_dest, ha);
 578                 ether_addr_copy(eth->h_dest, ha);
 579                 /* Update the encap source mac, in case that we delete
 580                  * the flows when encap source mac changed.
 581                  */
 582                 ether_addr_copy(eth->h_source, e->route_dev->dev_addr);
 583
 584                 mlx5e_tc_encap_flows_add(priv, e);
 585         }
 586 }
 587
 588 static void mlx5e_rep_neigh_update(struct work_struct *work)
 589 {
 590         struct mlx5e_neigh_hash_entry *nhe =
 591                 container_of(work, struct mlx5e_neigh_hash_entry, neigh_update_work);
 592         struct neighbour *n = nhe->n;
 593         struct mlx5e_encap_entry *e;
 594         unsigned char ha[ETH_ALEN];
 595         struct mlx5e_priv *priv;
 596         bool neigh_connected;
 597         bool encap_connected;
 598         u8 nud_state, dead;
 599
 600         rtnl_lock();
 601
 602         /* If these parameters are changed after we release the lock,
 603          * we'll receive another event letting us know about it.
 604          * We use this lock to avoid inconsistency between the neigh validity
 605          * and it's hw address.
 606          */
 607         read_lock_bh(&n->lock);
 608         memcpy(ha, n->ha, ETH_ALEN);
 609         nud_state = n->nud_state;
 610         dead = n->dead;
 611         read_unlock_bh(&n->lock);
 612
 613         neigh_connected = (nud_state & NUD_VALID) && !dead;
 614
 615         list_for_each_entry(e, &nhe->encap_list, encap_list) {
 616                 encap_connected = !!(e->flags & MLX5_ENCAP_ENTRY_VALID);
 617                 priv = netdev_priv(e->out_dev);
 618
 619                 if (encap_connected != neigh_connected ||
 620                     !ether_addr_equal(e->h_dest, ha))
 621                         mlx5e_rep_update_flows(priv, e, neigh_connected, ha);
 622         }
 623         mlx5e_rep_neigh_entry_release(nhe);
 624         rtnl_unlock();
 625         neigh_release(n);
 626 }
 627
 628 static struct mlx5e_rep_indr_block_priv *
 629 mlx5e_rep_indr_block_priv_lookup(struct mlx5e_rep_priv *rpriv,
 630                                  struct net_device *netdev)
 631 {
 632         struct mlx5e_rep_indr_block_priv *cb_priv;
 633
 634         /* All callback list access should be protected by RTNL. */
 635         ASSERT_RTNL();
 636
 637         list_for_each_entry(cb_priv,
 638                             &rpriv->uplink_priv.tc_indr_block_priv_list,
 639                             list)
 640                 if (cb_priv->netdev == netdev)
 641                         return cb_priv;
 642
 643         return NULL;
 644 }
 645
 646 static void mlx5e_rep_indr_clean_block_privs(struct mlx5e_rep_priv *rpriv)
 647 {
 648         struct mlx5e_rep_indr_block_priv *cb_priv, *temp;
 649         struct list_head *head = &rpriv->uplink_priv.tc_indr_block_priv_list;
 650
 651         list_for_each_entry_safe(cb_priv, temp, head, list) {
 652                 mlx5e_rep_indr_unregister_block(rpriv, cb_priv->netdev);
 653                 kfree(cb_priv);
 654         }
 655 }
 656
 657 static int
 658 mlx5e_rep_indr_offload(struct net_device *netdev,
 659                        struct flow_cls_offload *flower,
 660                        struct mlx5e_rep_indr_block_priv *indr_priv)
 661 {
 662         struct mlx5e_priv *priv = netdev_priv(indr_priv->rpriv->netdev);
 663         int flags = MLX5E_TC_EGRESS | MLX5E_TC_ESW_OFFLOAD;
 664         int err = 0;
 665
 666         switch (flower->command) {
 667         case FLOW_CLS_REPLACE:
 668                 err = mlx5e_configure_flower(netdev, priv, flower, flags);
 669                 break;
 670         case FLOW_CLS_DESTROY:
 671                 err = mlx5e_delete_flower(netdev, priv, flower, flags);
 672                 break;
 673         case FLOW_CLS_STATS:
 674                 err = mlx5e_stats_flower(netdev, priv, flower, flags);
 675                 break;
 676         default:
 677                 err = -EOPNOTSUPP;
 678         }
 679
 680         return err;
 681 }
 682
 683 static int mlx5e_rep_indr_setup_block_cb(enum tc_setup_type type,
 684                                          void *type_data, void *indr_priv)
 685 {
 686         struct mlx5e_rep_indr_block_priv *priv = indr_priv;
 687
 688         switch (type) {
 689         case TC_SETUP_CLSFLOWER:
 690                 return mlx5e_rep_indr_offload(priv->netdev, type_data, priv);
 691         default:
 692                 return -EOPNOTSUPP;
 693         }
 694 }
 695
 696 static void mlx5e_rep_indr_tc_block_unbind(void *cb_priv)
 697 {
 698         struct mlx5e_rep_indr_block_priv *indr_priv = cb_priv;
 699
 700         list_del(&indr_priv->list);
 701         kfree(indr_priv);
 702 }
 703
 704 static LIST_HEAD(mlx5e_block_cb_list);
 705
 706 static int
 707 mlx5e_rep_indr_setup_tc_block(struct net_device *netdev,
 708                               struct mlx5e_rep_priv *rpriv,
 709                               struct flow_block_offload *f)
 710 {
 711         struct mlx5e_rep_indr_block_priv *indr_priv;
 712         struct flow_block_cb *block_cb;
 713
 714         if (f->binder_type != FLOW_BLOCK_BINDER_TYPE_CLSACT_INGRESS)
 715                 return -EOPNOTSUPP;
 716
 717         f->driver_block_list = &mlx5e_block_cb_list;
 718
 719         switch (f->command) {
 720         case FLOW_BLOCK_BIND:
 721                 indr_priv = mlx5e_rep_indr_block_priv_lookup(rpriv, netdev);
 722                 if (indr_priv)
 723                         return -EEXIST;
 724
 725                 if (flow_block_cb_is_busy(mlx5e_rep_indr_setup_block_cb,
 726                                           indr_priv, &mlx5e_block_cb_list))
 727                         return -EBUSY;
 728
 729                 indr_priv = kmalloc(sizeof(*indr_priv), GFP_KERNEL);
 730                 if (!indr_priv)
 731                         return -ENOMEM;
 732
 733                 indr_priv->netdev = netdev;
 734                 indr_priv->rpriv = rpriv;
 735                 list_add(&indr_priv->list,
 736                          &rpriv->uplink_priv.tc_indr_block_priv_list);
 737
 738                 block_cb = flow_block_cb_alloc(mlx5e_rep_indr_setup_block_cb,
 739                                                indr_priv, indr_priv,
 740                                                mlx5e_rep_indr_tc_block_unbind);
 741                 if (IS_ERR(block_cb)) {
 742                         list_del(&indr_priv->list);
 743                         kfree(indr_priv);
 744                         return PTR_ERR(block_cb);
 745                 }
 746                 flow_block_cb_add(block_cb, f);
 747                 list_add_tail(&block_cb->driver_list, &mlx5e_block_cb_list);
 748
 749                 return 0;
 750         case FLOW_BLOCK_UNBIND:
 751                 indr_priv = mlx5e_rep_indr_block_priv_lookup(rpriv, netdev);
 752                 if (!indr_priv)
 753                         return -ENOENT;
 754
 755                 block_cb = flow_block_cb_lookup(f->block,
 756                                                 mlx5e_rep_indr_setup_block_cb,
 757                                                 indr_priv);
 758                 if (!block_cb)
 759                         return -ENOENT;
 760
 761                 flow_block_cb_remove(block_cb, f);
 762                 list_del(&block_cb->driver_list);
 763                 return 0;
 764         default:
 765                 return -EOPNOTSUPP;
 766         }
 767         return 0;
 768 }
 769
 770 static
 771 int mlx5e_rep_indr_setup_tc_cb(struct net_device *netdev, void *cb_priv,
 772                                enum tc_setup_type type, void *type_data)
 773 {
 774         switch (type) {
 775         case TC_SETUP_BLOCK:
 776                 return mlx5e_rep_indr_setup_tc_block(netdev, cb_priv,
 777                                                       type_data);
 778         default:
 779                 return -EOPNOTSUPP;
 780         }
 781 }
 782
 783 static int mlx5e_rep_indr_register_block(struct mlx5e_rep_priv *rpriv,
 784                                          struct net_device *netdev)
 785 {
 786         int err;
 787
 788         err = __tc_indr_block_cb_register(netdev, rpriv,
 789                                           mlx5e_rep_indr_setup_tc_cb,
 790                                           rpriv);
 791         if (err) {
 792                 struct mlx5e_priv *priv = netdev_priv(rpriv->netdev);
 793
 794                 mlx5_core_err(priv->mdev, "Failed to register remote block notifier for %s err=%d\n",
 795                               netdev_name(netdev), err);
 796         }
 797         return err;
 798 }
 799
 800 static void mlx5e_rep_indr_unregister_block(struct mlx5e_rep_priv *rpriv,
 801                                             struct net_device *netdev)
 802 {
 803         __tc_indr_block_cb_unregister(netdev, mlx5e_rep_indr_setup_tc_cb,
 804                                       rpriv);
 805 }
 806
 807 static int mlx5e_nic_rep_netdevice_event(struct notifier_block *nb,
 808                                          unsigned long event, void *ptr)
 809 {
 810         struct mlx5e_rep_priv *rpriv = container_of(nb, struct mlx5e_rep_priv,
 811                                                      uplink_priv.netdevice_nb);
 812         struct mlx5e_priv *priv = netdev_priv(rpriv->netdev);
 813         struct net_device *netdev = netdev_notifier_info_to_dev(ptr);
 814
 815         if (!mlx5e_tc_tun_device_to_offload(priv, netdev) &&
 816             !(is_vlan_dev(netdev) && vlan_dev_real_dev(netdev) == rpriv->netdev))
 817                 return NOTIFY_OK;
 818
 819         switch (event) {
 820         case NETDEV_REGISTER:
 821                 mlx5e_rep_indr_register_block(rpriv, netdev);
 822                 break;
 823         case NETDEV_UNREGISTER:
 824                 mlx5e_rep_indr_unregister_block(rpriv, netdev);
 825                 break;
 826         }
 827         return NOTIFY_OK;
 828 }
 829
 830 static struct mlx5e_neigh_hash_entry *
 831 mlx5e_rep_neigh_entry_lookup(struct mlx5e_priv *priv,
 832                              struct mlx5e_neigh *m_neigh);
 833
 834 static int mlx5e_rep_netevent_event(struct notifier_block *nb,
 835                                     unsigned long event, void *ptr)
 836 {
 837         struct mlx5e_rep_priv *rpriv = container_of(nb, struct mlx5e_rep_priv,
 838                                                     neigh_update.netevent_nb);
 839         struct mlx5e_neigh_update_table *neigh_update = &rpriv->neigh_update;
 840         struct net_device *netdev = rpriv->netdev;
 841         struct mlx5e_priv *priv = netdev_priv(netdev);
 842         struct mlx5e_neigh_hash_entry *nhe = NULL;
 843         struct mlx5e_neigh m_neigh = {};
 844         struct neigh_parms *p;
 845         struct neighbour *n;
 846         bool found = false;
 847
 848         switch (event) {
 849         case NETEVENT_NEIGH_UPDATE:
 850                 n = ptr;
 851 #if IS_ENABLED(CONFIG_IPV6)
 852                 if (n->tbl != &nd_tbl && n->tbl != &arp_tbl)
 853 #else
 854                 if (n->tbl != &arp_tbl)
 855 #endif
 856                         return NOTIFY_DONE;
 857
 858                 m_neigh.dev = n->dev;
 859                 m_neigh.family = n->ops->family;
 860                 memcpy(&m_neigh.dst_ip, n->primary_key, n->tbl->key_len);
 861
 862                 /* We are in atomic context and can't take RTNL mutex, so use
 863                  * spin_lock_bh to lookup the neigh table. bh is used since
 864                  * netevent can be called from a softirq context.
 865                  */
 866                 spin_lock_bh(&neigh_update->encap_lock);
 867                 nhe = mlx5e_rep_neigh_entry_lookup(priv, &m_neigh);
 868                 if (!nhe) {
 869                         spin_unlock_bh(&neigh_update->encap_lock);
 870                         return NOTIFY_DONE;
 871                 }
 872
 873                 /* This assignment is valid as long as the the neigh reference
 874                  * is taken
 875                  */
 876                 nhe->n = n;
 877
 878                 /* Take a reference to ensure the neighbour and mlx5 encap
 879                  * entry won't be destructed until we drop the reference in
 880                  * delayed work.
 881                  */
 882                 neigh_hold(n);
 883                 mlx5e_rep_neigh_entry_hold(nhe);
 884
 885                 if (!queue_work(priv->wq, &nhe->neigh_update_work)) {
 886                         mlx5e_rep_neigh_entry_release(nhe);
 887                         neigh_release(n);
 888                 }
 889                 spin_unlock_bh(&neigh_update->encap_lock);
 890                 break;
 891
 892         case NETEVENT_DELAY_PROBE_TIME_UPDATE:
 893                 p = ptr;
 894
 895                 /* We check the device is present since we don't care about
 896                  * changes in the default table, we only care about changes
 897                  * done per device delay prob time parameter.
 898                  */
 899 #if IS_ENABLED(CONFIG_IPV6)
 900                 if (!p->dev || (p->tbl != &nd_tbl && p->tbl != &arp_tbl))
 901 #else
 902                 if (!p->dev || p->tbl != &arp_tbl)
 903 #endif
 904                         return NOTIFY_DONE;
 905
 906                 /* We are in atomic context and can't take RTNL mutex,
 907                  * so use spin_lock_bh to walk the neigh list and look for
 908                  * the relevant device. bh is used since netevent can be
 909                  * called from a softirq context.
 910                  */
 911                 spin_lock_bh(&neigh_update->encap_lock);
 912                 list_for_each_entry(nhe, &neigh_update->neigh_list, neigh_list) {
 913                         if (p->dev == nhe->m_neigh.dev) {
 914                                 found = true;
 915                                 break;
 916                         }
 917                 }
 918                 spin_unlock_bh(&neigh_update->encap_lock);
 919                 if (!found)
 920                         return NOTIFY_DONE;
 921
 922                 neigh_update->min_interval = min_t(unsigned long,
 923                                                    NEIGH_VAR(p, DELAY_PROBE_TIME),
 924                                                    neigh_update->min_interval);
 925                 mlx5_fc_update_sampling_interval(priv->mdev,
 926                                                  neigh_update->min_interval);
 927                 break;
 928         }
 929         return NOTIFY_DONE;
 930 }
 931
 932 static const struct rhashtable_params mlx5e_neigh_ht_params = {
 933         .head_offset = offsetof(struct mlx5e_neigh_hash_entry, rhash_node),
 934         .key_offset = offsetof(struct mlx5e_neigh_hash_entry, m_neigh),
 935         .key_len = sizeof(struct mlx5e_neigh),
 936         .automatic_shrinking = true,
 937 };
 938
 939 static int mlx5e_rep_neigh_init(struct mlx5e_rep_priv *rpriv)
 940 {
 941         struct mlx5e_neigh_update_table *neigh_update = &rpriv->neigh_update;
 942         int err;
 943
 944         err = rhashtable_init(&neigh_update->neigh_ht, &mlx5e_neigh_ht_params);
 945         if (err)
 946                 return err;
 947
 948         INIT_LIST_HEAD(&neigh_update->neigh_list);
 949         spin_lock_init(&neigh_update->encap_lock);
 950         INIT_DELAYED_WORK(&neigh_update->neigh_stats_work,
 951                           mlx5e_rep_neigh_stats_work);
 952         mlx5e_rep_neigh_update_init_interval(rpriv);
 953
 954         rpriv->neigh_update.netevent_nb.notifier_call = mlx5e_rep_netevent_event;
 955         err = register_netevent_notifier(&rpriv->neigh_update.netevent_nb);
 956         if (err)
 957                 goto out_err;
 958         return 0;
 959
 960 out_err:
 961         rhashtable_destroy(&neigh_update->neigh_ht);
 962         return err;
 963 }
 964
 965 static void mlx5e_rep_neigh_cleanup(struct mlx5e_rep_priv *rpriv)
 966 {
 967         struct mlx5e_neigh_update_table *neigh_update = &rpriv->neigh_update;
 968         struct mlx5e_priv *priv = netdev_priv(rpriv->netdev);
 969
 970         unregister_netevent_notifier(&neigh_update->netevent_nb);
 971
 972         flush_workqueue(priv->wq); /* flush neigh update works */
 973
 974         cancel_delayed_work_sync(&rpriv->neigh_update.neigh_stats_work);
 975
 976         rhashtable_destroy(&neigh_update->neigh_ht);
 977 }
 978
 979 static int mlx5e_rep_neigh_entry_insert(struct mlx5e_priv *priv,
 980                                         struct mlx5e_neigh_hash_entry *nhe)
 981 {
 982         struct mlx5e_rep_priv *rpriv = priv->ppriv;
 983         int err;
 984
 985         err = rhashtable_insert_fast(&rpriv->neigh_update.neigh_ht,
 986                                      &nhe->rhash_node,
 987                                      mlx5e_neigh_ht_params);
 988         if (err)
 989                 return err;
 990
 991         list_add(&nhe->neigh_list, &rpriv->neigh_update.neigh_list);
 992
 993         return err;
 994 }
 995
 996 static void mlx5e_rep_neigh_entry_remove(struct mlx5e_priv *priv,
 997                                          struct mlx5e_neigh_hash_entry *nhe)
 998 {
 999         struct mlx5e_rep_priv *rpriv = priv->ppriv;
1000
1001         spin_lock_bh(&rpriv->neigh_update.encap_lock);
1002
1003         list_del(&nhe->neigh_list);
1004
1005         rhashtable_remove_fast(&rpriv->neigh_update.neigh_ht,
1006                                &nhe->rhash_node,
1007                                mlx5e_neigh_ht_params);
1008         spin_unlock_bh(&rpriv->neigh_update.encap_lock);
1009 }
1010
1011 /* This function must only be called under RTNL lock or under the
1012  * representor's encap_lock in case RTNL mutex can't be held.
1013  */
1014 static struct mlx5e_neigh_hash_entry *
1015 mlx5e_rep_neigh_entry_lookup(struct mlx5e_priv *priv,
1016                              struct mlx5e_neigh *m_neigh)
1017 {
1018         struct mlx5e_rep_priv *rpriv = priv->ppriv;
1019         struct mlx5e_neigh_update_table *neigh_update = &rpriv->neigh_update;
1020
1021         return rhashtable_lookup_fast(&neigh_update->neigh_ht, m_neigh,
1022                                       mlx5e_neigh_ht_params);
1023 }
1024
1025 static int mlx5e_rep_neigh_entry_create(struct mlx5e_priv *priv,
1026                                         struct mlx5e_encap_entry *e,
1027                                         struct mlx5e_neigh_hash_entry **nhe)
1028 {
1029         int err;
1030
1031         *nhe = kzalloc(sizeof(**nhe), GFP_KERNEL);
1032         if (!*nhe)
1033                 return -ENOMEM;
1034
1035         memcpy(&(*nhe)->m_neigh, &e->m_neigh, sizeof(e->m_neigh));
1036         INIT_WORK(&(*nhe)->neigh_update_work, mlx5e_rep_neigh_update);
1037         INIT_LIST_HEAD(&(*nhe)->encap_list);
1038         refcount_set(&(*nhe)->refcnt, 1);
1039
1040         err = mlx5e_rep_neigh_entry_insert(priv, *nhe);
1041         if (err)
1042                 goto out_free;
1043         return 0;
1044
1045 out_free:
1046         kfree(*nhe);
1047         return err;
1048 }
1049
1050 static void mlx5e_rep_neigh_entry_destroy(struct mlx5e_priv *priv,
1051                                           struct mlx5e_neigh_hash_entry *nhe)
1052 {
1053         /* The neigh hash entry must be removed from the hash table regardless
1054          * of the reference count value, so it won't be found by the next
1055          * neigh notification call. The neigh hash entry reference count is
1056          * incremented only during creation and neigh notification calls and
1057          * protects from freeing the nhe struct.
1058          */
1059         mlx5e_rep_neigh_entry_remove(priv, nhe);
1060         mlx5e_rep_neigh_entry_release(nhe);
1061 }
1062
1063 int mlx5e_rep_encap_entry_attach(struct mlx5e_priv *priv,
1064                                  struct mlx5e_encap_entry *e)
1065 {
1066         struct mlx5e_rep_priv *rpriv = priv->ppriv;
1067         struct mlx5_rep_uplink_priv *uplink_priv = &rpriv->uplink_priv;
1068         struct mlx5_tun_entropy *tun_entropy = &uplink_priv->tun_entropy;
1069         struct mlx5e_neigh_hash_entry *nhe;
1070         int err;
1071
1072         err = mlx5_tun_entropy_refcount_inc(tun_entropy, e->reformat_type);
1073         if (err)
1074                 return err;
1075         nhe = mlx5e_rep_neigh_entry_lookup(priv, &e->m_neigh);
1076         if (!nhe) {
1077                 err = mlx5e_rep_neigh_entry_create(priv, e, &nhe);
1078                 if (err) {
1079                         mlx5_tun_entropy_refcount_dec(tun_entropy,
1080                                                       e->reformat_type);
1081                         return err;
1082                 }
1083         }
1084         list_add(&e->encap_list, &nhe->encap_list);
1085         return 0;
1086 }
1087
1088 void mlx5e_rep_encap_entry_detach(struct mlx5e_priv *priv,
1089                                   struct mlx5e_encap_entry *e)
1090 {
1091         struct mlx5e_rep_priv *rpriv = priv->ppriv;
1092         struct mlx5_rep_uplink_priv *uplink_priv = &rpriv->uplink_priv;
1093         struct mlx5_tun_entropy *tun_entropy = &uplink_priv->tun_entropy;
1094         struct mlx5e_neigh_hash_entry *nhe;
1095
1096         list_del(&e->encap_list);
1097         nhe = mlx5e_rep_neigh_entry_lookup(priv, &e->m_neigh);
1098
1099         if (list_empty(&nhe->encap_list))
1100                 mlx5e_rep_neigh_entry_destroy(priv, nhe);
1101         mlx5_tun_entropy_refcount_dec(tun_entropy, e->reformat_type);
1102 }
1103
1104 static int mlx5e_rep_open(struct net_device *dev)
1105 {
1106         struct mlx5e_priv *priv = netdev_priv(dev);
1107         struct mlx5e_rep_priv *rpriv = priv->ppriv;
1108         struct mlx5_eswitch_rep *rep = rpriv->rep;
1109         int err;
1110
1111         mutex_lock(&priv->state_lock);
1112         err = mlx5e_open_locked(dev);
1113         if (err)
1114                 goto unlock;
1115
1116         if (!mlx5_modify_vport_admin_state(priv->mdev,
1117                                            MLX5_VPORT_STATE_OP_MOD_ESW_VPORT,
1118                                            rep->vport, 1,
1119                                            MLX5_VPORT_ADMIN_STATE_UP))
1120                 netif_carrier_on(dev);
1121
1122 unlock:
1123         mutex_unlock(&priv->state_lock);
1124         return err;
1125 }
1126
1127 static int mlx5e_rep_close(struct net_device *dev)
1128 {
1129         struct mlx5e_priv *priv = netdev_priv(dev);
1130         struct mlx5e_rep_priv *rpriv = priv->ppriv;
1131         struct mlx5_eswitch_rep *rep = rpriv->rep;
1132         int ret;
1133
1134         mutex_lock(&priv->state_lock);
1135         mlx5_modify_vport_admin_state(priv->mdev,
1136                                       MLX5_VPORT_STATE_OP_MOD_ESW_VPORT,
1137                                       rep->vport, 1,
1138                                       MLX5_VPORT_ADMIN_STATE_DOWN);
1139         ret = mlx5e_close_locked(dev);
1140         mutex_unlock(&priv->state_lock);
1141         return ret;
1142 }
1143
1144 static int
1145 mlx5e_rep_setup_tc_cls_flower(struct mlx5e_priv *priv,
1146                               struct flow_cls_offload *cls_flower, int flags)
1147 {
1148         switch (cls_flower->command) {
1149         case FLOW_CLS_REPLACE:
1150                 return mlx5e_configure_flower(priv->netdev, priv, cls_flower,
1151                                               flags);
1152         case FLOW_CLS_DESTROY:
1153                 return mlx5e_delete_flower(priv->netdev, priv, cls_flower,
1154                                            flags);
1155         case FLOW_CLS_STATS:
1156                 return mlx5e_stats_flower(priv->netdev, priv, cls_flower,
1157                                           flags);
1158         default:
1159                 return -EOPNOTSUPP;
1160         }
1161 }
1162
1163 static int mlx5e_rep_setup_tc_cb(enum tc_setup_type type, void *type_data,
1164                                  void *cb_priv)
1165 {
1166         struct mlx5e_priv *priv = cb_priv;
1167
1168         switch (type) {
1169         case TC_SETUP_CLSFLOWER:
1170                 return mlx5e_rep_setup_tc_cls_flower(priv, type_data, MLX5E_TC_INGRESS |
1171                                                      MLX5E_TC_ESW_OFFLOAD);
1172         default:
1173                 return -EOPNOTSUPP;
1174         }
1175 }
1176
1177 static LIST_HEAD(mlx5e_rep_block_cb_list);
1178
1179 static int mlx5e_rep_setup_tc(struct net_device *dev, enum tc_setup_type type,
1180                               void *type_data)
1181 {
1182         struct mlx5e_priv *priv = netdev_priv(dev);
1183
1184         switch (type) {
1185         case TC_SETUP_BLOCK:
1186                 return flow_block_cb_setup_simple(type_data,
1187                                                   &mlx5e_rep_block_cb_list,
1188                                                   mlx5e_rep_setup_tc_cb,
1189                                                   priv, priv, true);
1190         default:
1191                 return -EOPNOTSUPP;
1192         }
1193 }
1194
1195 bool mlx5e_is_uplink_rep(struct mlx5e_priv *priv)
1196 {
1197         struct mlx5e_rep_priv *rpriv = priv->ppriv;
1198         struct mlx5_eswitch_rep *rep;
1199
1200         if (!MLX5_ESWITCH_MANAGER(priv->mdev))
1201                 return false;
1202
1203         if (!rpriv) /* non vport rep mlx5e instances don't use this field */
1204                 return false;
1205
1206         rep = rpriv->rep;
1207         return (rep->vport == MLX5_VPORT_UPLINK);
1208 }
1209
1210 static bool mlx5e_rep_has_offload_stats(const struct net_device *dev, int attr_id)
1211 {
1212         switch (attr_id) {
1213         case IFLA_OFFLOAD_XSTATS_CPU_HIT:
1214                         return true;
1215         }
1216
1217         return false;
1218 }
1219
1220 static int
1221 mlx5e_get_sw_stats64(const struct net_device *dev,
1222                      struct rtnl_link_stats64 *stats)
1223 {
1224         struct mlx5e_priv *priv = netdev_priv(dev);
1225
1226         mlx5e_fold_sw_stats64(priv, stats);
1227         return 0;
1228 }
1229
1230 static int mlx5e_rep_get_offload_stats(int attr_id, const struct net_device *dev,
1231                                        void *sp)
1232 {
1233         switch (attr_id) {
1234         case IFLA_OFFLOAD_XSTATS_CPU_HIT:
1235                 return mlx5e_get_sw_stats64(dev, sp);
1236         }
1237
1238         return -EINVAL;
1239 }
1240
1241 static void
1242 mlx5e_rep_get_stats(struct net_device *dev, struct rtnl_link_stats64 *stats)
1243 {
1244         struct mlx5e_priv *priv = netdev_priv(dev);
1245
1246         /* update HW stats in background for next time */
1247         mlx5e_queue_update_stats(priv);
1248         memcpy(stats, &priv->stats.vf_vport, sizeof(*stats));
1249 }
1250
1251 static int mlx5e_rep_change_mtu(struct net_device *netdev, int new_mtu)
1252 {
1253         return mlx5e_change_mtu(netdev, new_mtu, NULL);
1254 }
1255
1256 static int mlx5e_uplink_rep_change_mtu(struct net_device *netdev, int new_mtu)
1257 {
1258         return mlx5e_change_mtu(netdev, new_mtu, mlx5e_set_dev_port_mtu);
1259 }
1260
1261 static int mlx5e_uplink_rep_set_mac(struct net_device *netdev, void *addr)
1262 {
1263         struct sockaddr *saddr = addr;
1264
1265         if (!is_valid_ether_addr(saddr->sa_data))
1266                 return -EADDRNOTAVAIL;
1267
1268         ether_addr_copy(netdev->dev_addr, saddr->sa_data);
1269         return 0;
1270 }
1271
1272 static int mlx5e_uplink_rep_set_vf_vlan(struct net_device *dev, int vf, u16 vlan, u8 qos,
1273                                         __be16 vlan_proto)
1274 {
1275         netdev_warn_once(dev, "legacy vf vlan setting isn't supported in switchdev mode\n");
1276
1277         if (vlan != 0)
1278                 return -EOPNOTSUPP;
1279
1280         /* allow setting 0-vid for compatibility with libvirt */
1281         return 0;
1282 }
1283
1284 static struct devlink_port *mlx5e_get_devlink_port(struct net_device *dev)
1285 {
1286         struct mlx5e_priv *priv = netdev_priv(dev);
1287         struct mlx5e_rep_priv *rpriv = priv->ppriv;
1288
1289         return &rpriv->dl_port;
1290 }
1291
1292 static const struct net_device_ops mlx5e_netdev_ops_rep = {
1293         .ndo_open                = mlx5e_rep_open,
1294         .ndo_stop                = mlx5e_rep_close,
1295         .ndo_start_xmit          = mlx5e_xmit,
1296         .ndo_setup_tc            = mlx5e_rep_setup_tc,
1297         .ndo_get_devlink_port = mlx5e_get_devlink_port,
1298         .ndo_get_stats64         = mlx5e_rep_get_stats,
1299         .ndo_has_offload_stats   = mlx5e_rep_has_offload_stats,
1300         .ndo_get_offload_stats   = mlx5e_rep_get_offload_stats,
1301         .ndo_change_mtu          = mlx5e_rep_change_mtu,
1302 };
1303
1304 static const struct net_device_ops mlx5e_netdev_ops_uplink_rep = {
1305         .ndo_open                = mlx5e_open,
1306         .ndo_stop                = mlx5e_close,
1307         .ndo_start_xmit          = mlx5e_xmit,
1308         .ndo_set_mac_address     = mlx5e_uplink_rep_set_mac,
1309         .ndo_setup_tc            = mlx5e_rep_setup_tc,
1310         .ndo_get_devlink_port = mlx5e_get_devlink_port,
1311         .ndo_get_stats64         = mlx5e_get_stats,
1312         .ndo_has_offload_stats   = mlx5e_rep_has_offload_stats,
1313         .ndo_get_offload_stats   = mlx5e_rep_get_offload_stats,
1314         .ndo_change_mtu          = mlx5e_uplink_rep_change_mtu,
1315         .ndo_udp_tunnel_add      = mlx5e_add_vxlan_port,
1316         .ndo_udp_tunnel_del      = mlx5e_del_vxlan_port,
1317         .ndo_features_check      = mlx5e_features_check,
1318         .ndo_set_vf_mac          = mlx5e_set_vf_mac,
1319         .ndo_set_vf_rate         = mlx5e_set_vf_rate,
1320         .ndo_get_vf_config       = mlx5e_get_vf_config,
1321         .ndo_get_vf_stats        = mlx5e_get_vf_stats,
1322         .ndo_set_vf_vlan         = mlx5e_uplink_rep_set_vf_vlan,
1323         .ndo_set_features        = mlx5e_set_features,
1324 };
1325
1326 bool mlx5e_eswitch_rep(struct net_device *netdev)
1327 {
1328         if (netdev->netdev_ops == &mlx5e_netdev_ops_rep ||
1329             netdev->netdev_ops == &mlx5e_netdev_ops_uplink_rep)
1330                 return true;
1331
1332         return false;
1333 }
1334
1335 static void mlx5e_build_rep_params(struct net_device *netdev)
1336 {
1337         struct mlx5e_priv *priv = netdev_priv(netdev);
1338         struct mlx5e_rep_priv *rpriv = priv->ppriv;
1339         struct mlx5_eswitch_rep *rep = rpriv->rep;
1340         struct mlx5_core_dev *mdev = priv->mdev;
1341         struct mlx5e_params *params;
1342
1343         u8 cq_period_mode = MLX5_CAP_GEN(mdev, cq_period_start_from_cqe) ?
1344                                          MLX5_CQ_PERIOD_MODE_START_FROM_CQE :
1345                                          MLX5_CQ_PERIOD_MODE_START_FROM_EQE;
1346
1347         params = &priv->channels.params;
1348         params->hard_mtu    = MLX5E_ETH_HARD_MTU;
1349         params->sw_mtu      = netdev->mtu;
1350
1351         /* SQ */
1352         if (rep->vport == MLX5_VPORT_UPLINK)
1353                 params->log_sq_size = MLX5E_PARAMS_DEFAULT_LOG_SQ_SIZE;
1354         else
1355                 params->log_sq_size = MLX5E_REP_PARAMS_DEF_LOG_SQ_SIZE;
1356
1357         /* RQ */
1358         mlx5e_build_rq_params(mdev, params);
1359
1360         /* CQ moderation params */
1361         params->rx_dim_enabled = MLX5_CAP_GEN(mdev, cq_moderation);
1362         mlx5e_set_rx_cq_mode_params(params, cq_period_mode);
1363
1364         params->num_tc                = 1;
1365         params->tunneled_offload_en = false;
1366
1367         mlx5_query_min_inline(mdev, &params->tx_min_inline_mode);
1368
1369         /* RSS */
1370         mlx5e_build_rss_params(&priv->rss_params, params->num_channels);
1371 }
1372
1373 static void mlx5e_build_rep_netdev(struct net_device *netdev)
1374 {
1375         struct mlx5e_priv *priv = netdev_priv(netdev);
1376         struct mlx5e_rep_priv *rpriv = priv->ppriv;
1377         struct mlx5_eswitch_rep *rep = rpriv->rep;
1378         struct mlx5_core_dev *mdev = priv->mdev;
1379
1380         if (rep->vport == MLX5_VPORT_UPLINK) {
1381                 SET_NETDEV_DEV(netdev, mdev->device);
1382                 netdev->netdev_ops = &mlx5e_netdev_ops_uplink_rep;
1383                 /* we want a persistent mac for the uplink rep */
1384                 mlx5_query_mac_address(mdev, netdev->dev_addr);
1385                 netdev->ethtool_ops = &mlx5e_uplink_rep_ethtool_ops;
1386 #ifdef CONFIG_MLX5_CORE_EN_DCB
1387                 if (MLX5_CAP_GEN(mdev, qos))
1388                         netdev->dcbnl_ops = &mlx5e_dcbnl_ops;
1389 #endif
1390         } else {
1391                 netdev->netdev_ops = &mlx5e_netdev_ops_rep;
1392                 eth_hw_addr_random(netdev);
1393                 netdev->ethtool_ops = &mlx5e_rep_ethtool_ops;
1394         }
1395
1396         netdev->watchdog_timeo    = 15 * HZ;
1397
1398         netdev->features       |= NETIF_F_NETNS_LOCAL;
1399
1400         netdev->hw_features    |= NETIF_F_HW_TC;
1401         netdev->hw_features    |= NETIF_F_SG;
1402         netdev->hw_features    |= NETIF_F_IP_CSUM;
1403         netdev->hw_features    |= NETIF_F_IPV6_CSUM;
1404         netdev->hw_features    |= NETIF_F_GRO;
1405         netdev->hw_features    |= NETIF_F_TSO;
1406         netdev->hw_features    |= NETIF_F_TSO6;
1407         netdev->hw_features    |= NETIF_F_RXCSUM;
1408
1409         if (rep->vport == MLX5_VPORT_UPLINK)
1410                 netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_RX;
1411         else
1412                 netdev->features |= NETIF_F_VLAN_CHALLENGED;
1413
1414         netdev->features |= netdev->hw_features;
1415 }
1416
1417 static int mlx5e_init_rep(struct mlx5_core_dev *mdev,
1418                           struct net_device *netdev,
1419                           const struct mlx5e_profile *profile,
1420                           void *ppriv)
1421 {
1422         struct mlx5e_priv *priv = netdev_priv(netdev);
1423         int err;
1424
1425         err = mlx5e_netdev_init(netdev, priv, mdev, profile, ppriv);
1426         if (err)
1427                 return err;
1428
1429         priv->channels.params.num_channels = MLX5E_REP_PARAMS_DEF_NUM_CHANNELS;
1430
1431         mlx5e_build_rep_params(netdev);
1432         mlx5e_build_rep_netdev(netdev);
1433
1434         mlx5e_timestamp_init(priv);
1435
1436         return 0;
1437 }
1438
1439 static void mlx5e_cleanup_rep(struct mlx5e_priv *priv)
1440 {
1441         mlx5e_netdev_cleanup(priv->netdev, priv);
1442 }
1443
1444 static int mlx5e_create_rep_ttc_table(struct mlx5e_priv *priv)
1445 {
1446         struct ttc_params ttc_params = {};
1447         int tt, err;
1448
1449         priv->fs.ns = mlx5_get_flow_namespace(priv->mdev,
1450                                               MLX5_FLOW_NAMESPACE_KERNEL);
1451
1452         /* The inner_ttc in the ttc params is intentionally not set */
1453         ttc_params.any_tt_tirn = priv->direct_tir[0].tirn;
1454         mlx5e_set_ttc_ft_params(&ttc_params);
1455         for (tt = 0; tt < MLX5E_NUM_INDIR_TIRS; tt++)
1456                 ttc_params.indir_tirn[tt] = priv->indir_tir[tt].tirn;
1457
1458         err = mlx5e_create_ttc_table(priv, &ttc_params, &priv->fs.ttc);
1459         if (err) {
1460                 netdev_err(priv->netdev, "Failed to create rep ttc table, err=%d\n", err);
1461                 return err;
1462         }
1463         return 0;
1464 }
1465
1466 static int mlx5e_create_rep_vport_rx_rule(struct mlx5e_priv *priv)
1467 {
1468         struct mlx5_eswitch *esw = priv->mdev->priv.eswitch;
1469         struct mlx5e_rep_priv *rpriv = priv->ppriv;
1470         struct mlx5_eswitch_rep *rep = rpriv->rep;
1471         struct mlx5_flow_handle *flow_rule;
1472         struct mlx5_flow_destination dest;
1473
1474         dest.type = MLX5_FLOW_DESTINATION_TYPE_TIR;
1475         dest.tir_num = priv->direct_tir[0].tirn;
1476         flow_rule = mlx5_eswitch_create_vport_rx_rule(esw,
1477                                                       rep->vport,
1478                                                       &dest);
1479         if (IS_ERR(flow_rule))
1480                 return PTR_ERR(flow_rule);
1481         rpriv->vport_rx_rule = flow_rule;
1482         return 0;
1483 }
1484
1485 static int mlx5e_init_rep_rx(struct mlx5e_priv *priv)
1486 {
1487         struct mlx5_core_dev *mdev = priv->mdev;
1488         int err;
1489
1490         mlx5e_init_l2_addr(priv);
1491
1492         err = mlx5e_open_drop_rq(priv, &priv->drop_rq);
1493         if (err) {
1494                 mlx5_core_err(mdev, "open drop rq failed, %d\n", err);
1495                 return err;
1496         }
1497
1498         err = mlx5e_create_indirect_rqt(priv);
1499         if (err)
1500                 goto err_close_drop_rq;
1501
1502         err = mlx5e_create_direct_rqts(priv, priv->direct_tir);
1503         if (err)
1504                 goto err_destroy_indirect_rqts;
1505
1506         err = mlx5e_create_indirect_tirs(priv, false);
1507         if (err)
1508                 goto err_destroy_direct_rqts;
1509
1510         err = mlx5e_create_direct_tirs(priv, priv->direct_tir);
1511         if (err)
1512                 goto err_destroy_indirect_tirs;
1513
1514         err = mlx5e_create_rep_ttc_table(priv);
1515         if (err)
1516                 goto err_destroy_direct_tirs;
1517
1518         err = mlx5e_create_rep_vport_rx_rule(priv);
1519         if (err)
1520                 goto err_destroy_ttc_table;
1521
1522         return 0;
1523
1524 err_destroy_ttc_table:
1525         mlx5e_destroy_ttc_table(priv, &priv->fs.ttc);
1526 err_destroy_direct_tirs:
1527         mlx5e_destroy_direct_tirs(priv, priv->direct_tir);
1528 err_destroy_indirect_tirs:
1529         mlx5e_destroy_indirect_tirs(priv, false);
1530 err_destroy_direct_rqts:
1531         mlx5e_destroy_direct_rqts(priv, priv->direct_tir);
1532 err_destroy_indirect_rqts:
1533         mlx5e_destroy_rqt(priv, &priv->indir_rqt);
1534 err_close_drop_rq:
1535         mlx5e_close_drop_rq(&priv->drop_rq);
1536         return err;
1537 }
1538
1539 static void mlx5e_cleanup_rep_rx(struct mlx5e_priv *priv)
1540 {
1541         struct mlx5e_rep_priv *rpriv = priv->ppriv;
1542
1543         mlx5_del_flow_rules(rpriv->vport_rx_rule);
1544         mlx5e_destroy_ttc_table(priv, &priv->fs.ttc);
1545         mlx5e_destroy_direct_tirs(priv, priv->direct_tir);
1546         mlx5e_destroy_indirect_tirs(priv, false);
1547         mlx5e_destroy_direct_rqts(priv, priv->direct_tir);
1548         mlx5e_destroy_rqt(priv, &priv->indir_rqt);
1549         mlx5e_close_drop_rq(&priv->drop_rq);
1550 }
1551
1552 static int mlx5e_init_rep_tx(struct mlx5e_priv *priv)
1553 {
1554         struct mlx5e_rep_priv *rpriv = priv->ppriv;
1555         struct mlx5_rep_uplink_priv *uplink_priv;
1556         int tc, err;
1557
1558         err = mlx5e_create_tises(priv);
1559         if (err) {
1560                 mlx5_core_warn(priv->mdev, "create tises failed, %d\n", err);
1561                 return err;
1562         }
1563
1564         if (rpriv->rep->vport == MLX5_VPORT_UPLINK) {
1565                 uplink_priv = &rpriv->uplink_priv;
1566
1567                 INIT_LIST_HEAD(&uplink_priv->unready_flows);
1568
1569                 /* init shared tc flow table */
1570                 err = mlx5e_tc_esw_init(&uplink_priv->tc_ht);
1571                 if (err)
1572                         goto destroy_tises;
1573
1574                 mlx5_init_port_tun_entropy(&uplink_priv->tun_entropy, priv->mdev);
1575
1576                 /* init indirect block notifications */
1577                 INIT_LIST_HEAD(&uplink_priv->tc_indr_block_priv_list);
1578                 uplink_priv->netdevice_nb.notifier_call = mlx5e_nic_rep_netdevice_event;
1579                 err = register_netdevice_notifier(&uplink_priv->netdevice_nb);
1580                 if (err) {
1581                         mlx5_core_err(priv->mdev, "Failed to register netdev notifier\n");
1582                         goto tc_esw_cleanup;
1583                 }
1584         }
1585
1586         return 0;
1587
1588 tc_esw_cleanup:
1589         mlx5e_tc_esw_cleanup(&uplink_priv->tc_ht);
1590 destroy_tises:
1591         for (tc = 0; tc < priv->profile->max_tc; tc++)
1592                 mlx5e_destroy_tis(priv->mdev, priv->tisn[tc]);
1593         return err;
1594 }
1595
1596 static void mlx5e_cleanup_rep_tx(struct mlx5e_priv *priv)
1597 {
1598         struct mlx5e_rep_priv *rpriv = priv->ppriv;
1599         int tc;
1600
1601         for (tc = 0; tc < priv->profile->max_tc; tc++)
1602                 mlx5e_destroy_tis(priv->mdev, priv->tisn[tc]);
1603
1604         if (rpriv->rep->vport == MLX5_VPORT_UPLINK) {
1605                 /* clean indirect TC block notifications */
1606                 unregister_netdevice_notifier(&rpriv->uplink_priv.netdevice_nb);
1607                 mlx5e_rep_indr_clean_block_privs(rpriv);
1608
1609                 /* delete shared tc flow table */
1610                 mlx5e_tc_esw_cleanup(&rpriv->uplink_priv.tc_ht);
1611         }
1612 }
1613
1614 static void mlx5e_rep_enable(struct mlx5e_priv *priv)
1615 {
1616         mlx5e_set_netdev_mtu_boundaries(priv);
1617 }
1618
1619 static int mlx5e_update_rep_rx(struct mlx5e_priv *priv)
1620 {
1621         return 0;
1622 }
1623
1624 static int uplink_rep_async_event(struct notifier_block *nb, unsigned long event, void *data)
1625 {
1626         struct mlx5e_priv *priv = container_of(nb, struct mlx5e_priv, events_nb);
1627
1628         if (event == MLX5_EVENT_TYPE_PORT_CHANGE) {
1629                 struct mlx5_eqe *eqe = data;
1630
1631                 switch (eqe->sub_type) {
1632                 case MLX5_PORT_CHANGE_SUBTYPE_DOWN:
1633                 case MLX5_PORT_CHANGE_SUBTYPE_ACTIVE:
1634                         queue_work(priv->wq, &priv->update_carrier_work);
1635                         break;
1636                 default:
1637                         return NOTIFY_DONE;
1638                 }
1639
1640                 return NOTIFY_OK;
1641         }
1642
1643         if (event == MLX5_DEV_EVENT_PORT_AFFINITY) {
1644                 struct mlx5e_rep_priv *rpriv = priv->ppriv;
1645
1646                 queue_work(priv->wq, &rpriv->uplink_priv.reoffload_flows_work);
1647
1648                 return NOTIFY_OK;
1649         }
1650
1651         return NOTIFY_DONE;
1652 }
1653
1654 static void mlx5e_uplink_rep_enable(struct mlx5e_priv *priv)
1655 {
1656         struct net_device *netdev = priv->netdev;
1657         struct mlx5_core_dev *mdev = priv->mdev;
1658         struct mlx5e_rep_priv *rpriv = priv->ppriv;
1659         u16 max_mtu;
1660
1661         netdev->min_mtu = ETH_MIN_MTU;
1662         mlx5_query_port_max_mtu(priv->mdev, &max_mtu, 1);
1663         netdev->max_mtu = MLX5E_HW2SW_MTU(&priv->channels.params, max_mtu);
1664         mlx5e_set_dev_port_mtu(priv);
1665
1666         INIT_WORK(&rpriv->uplink_priv.reoffload_flows_work,
1667                   mlx5e_tc_reoffload_flows_work);
1668
1669         mlx5_lag_add(mdev, netdev);
1670         priv->events_nb.notifier_call = uplink_rep_async_event;
1671         mlx5_notifier_register(mdev, &priv->events_nb);
1672 #ifdef CONFIG_MLX5_CORE_EN_DCB
1673         mlx5e_dcbnl_initialize(priv);
1674         mlx5e_dcbnl_init_app(priv);
1675 #endif
1676 }
1677
1678 static void mlx5e_uplink_rep_disable(struct mlx5e_priv *priv)
1679 {
1680         struct mlx5_core_dev *mdev = priv->mdev;
1681         struct mlx5e_rep_priv *rpriv = priv->ppriv;
1682
1683 #ifdef CONFIG_MLX5_CORE_EN_DCB
1684         mlx5e_dcbnl_delete_app(priv);
1685 #endif
1686         mlx5_notifier_unregister(mdev, &priv->events_nb);
1687         cancel_work_sync(&rpriv->uplink_priv.reoffload_flows_work);
1688         mlx5_lag_remove(mdev);
1689 }
1690
1691 static const struct mlx5e_profile mlx5e_rep_profile = {
1692         .init                   = mlx5e_init_rep,
1693         .cleanup                = mlx5e_cleanup_rep,
1694         .init_rx                = mlx5e_init_rep_rx,
1695         .cleanup_rx             = mlx5e_cleanup_rep_rx,
1696         .init_tx                = mlx5e_init_rep_tx,
1697         .cleanup_tx             = mlx5e_cleanup_rep_tx,
1698         .enable                 = mlx5e_rep_enable,
1699         .update_rx              = mlx5e_update_rep_rx,
1700         .update_stats           = mlx5e_rep_update_hw_counters,
1701         .rx_handlers.handle_rx_cqe       = mlx5e_handle_rx_cqe_rep,
1702         .rx_handlers.handle_rx_cqe_mpwqe = mlx5e_handle_rx_cqe_mpwrq,
1703         .max_tc                 = 1,
1704         .rq_groups              = MLX5E_NUM_RQ_GROUPS(REGULAR),
1705 };
1706
1707 static const struct mlx5e_profile mlx5e_uplink_rep_profile = {
1708         .init                   = mlx5e_init_rep,
1709         .cleanup                = mlx5e_cleanup_rep,
1710         .init_rx                = mlx5e_init_rep_rx,
1711         .cleanup_rx             = mlx5e_cleanup_rep_rx,
1712         .init_tx                = mlx5e_init_rep_tx,
1713         .cleanup_tx             = mlx5e_cleanup_rep_tx,
1714         .enable                 = mlx5e_uplink_rep_enable,
1715         .disable                = mlx5e_uplink_rep_disable,
1716         .update_rx              = mlx5e_update_rep_rx,
1717         .update_stats           = mlx5e_uplink_rep_update_hw_counters,
1718         .update_carrier         = mlx5e_update_carrier,
1719         .rx_handlers.handle_rx_cqe       = mlx5e_handle_rx_cqe_rep,
1720         .rx_handlers.handle_rx_cqe_mpwqe = mlx5e_handle_rx_cqe_mpwrq,
1721         .max_tc                 = MLX5E_MAX_NUM_TC,
1722         .rq_groups              = MLX5E_NUM_RQ_GROUPS(REGULAR),
1723 };
1724
1725 static bool
1726 is_devlink_port_supported(const struct mlx5_core_dev *dev,
1727                           const struct mlx5e_rep_priv *rpriv)
1728 {
1729         return rpriv->rep->vport == MLX5_VPORT_UPLINK ||
1730                rpriv->rep->vport == MLX5_VPORT_PF ||
1731                mlx5_eswitch_is_vf_vport(dev->priv.eswitch, rpriv->rep->vport);
1732 }
1733
1734 static int register_devlink_port(struct mlx5_core_dev *dev,
1735                                  struct mlx5e_rep_priv *rpriv)
1736 {
1737         struct devlink *devlink = priv_to_devlink(dev);
1738         struct mlx5_eswitch_rep *rep = rpriv->rep;
1739         struct netdev_phys_item_id ppid = {};
1740         int ret;
1741
1742         if (!is_devlink_port_supported(dev, rpriv))
1743                 return 0;
1744
1745         ret = mlx5e_rep_get_port_parent_id(rpriv->netdev, &ppid);
1746         if (ret)
1747                 return ret;
1748
1749         if (rep->vport == MLX5_VPORT_UPLINK)
1750                 devlink_port_attrs_set(&rpriv->dl_port,
1751                                        DEVLINK_PORT_FLAVOUR_PHYSICAL,
1752                                        PCI_FUNC(dev->pdev->devfn), false, 0,
1753                                        &ppid.id[0], ppid.id_len);
1754         else if (rep->vport == MLX5_VPORT_PF)
1755                 devlink_port_attrs_pci_pf_set(&rpriv->dl_port,
1756                                               &ppid.id[0], ppid.id_len,
1757                                               dev->pdev->devfn);
1758         else if (mlx5_eswitch_is_vf_vport(dev->priv.eswitch, rpriv->rep->vport))
1759                 devlink_port_attrs_pci_vf_set(&rpriv->dl_port,
1760                                               &ppid.id[0], ppid.id_len,
1761                                               dev->pdev->devfn,
1762                                               rep->vport - 1);
1763
1764         return devlink_port_register(devlink, &rpriv->dl_port, rep->vport);
1765 }
1766
1767 static void unregister_devlink_port(struct mlx5_core_dev *dev,
1768                                     struct mlx5e_rep_priv *rpriv)
1769 {
1770         if (is_devlink_port_supported(dev, rpriv))
1771                 devlink_port_unregister(&rpriv->dl_port);
1772 }
1773
1774 /* e-Switch vport representors */
1775 static int
1776 mlx5e_vport_rep_load(struct mlx5_core_dev *dev, struct mlx5_eswitch_rep *rep)
1777 {
1778         const struct mlx5e_profile *profile;
1779         struct mlx5e_rep_priv *rpriv;
1780         struct net_device *netdev;
1781         int nch, err;
1782
1783         rpriv = kzalloc(sizeof(*rpriv), GFP_KERNEL);
1784         if (!rpriv)
1785                 return -ENOMEM;
1786
1787         /* rpriv->rep to be looked up when profile->init() is called */
1788         rpriv->rep = rep;
1789
1790         nch = mlx5e_get_max_num_channels(dev);
1791         profile = (rep->vport == MLX5_VPORT_UPLINK) ?
1792                   &mlx5e_uplink_rep_profile : &mlx5e_rep_profile;
1793         netdev = mlx5e_create_netdev(dev, profile, nch, rpriv);
1794         if (!netdev) {
1795                 pr_warn("Failed to create representor netdev for vport %d\n",
1796                         rep->vport);
1797                 kfree(rpriv);
1798                 return -EINVAL;
1799         }
1800
1801         rpriv->netdev = netdev;
1802         rep->rep_data[REP_ETH].priv = rpriv;
1803         INIT_LIST_HEAD(&rpriv->vport_sqs_list);
1804
1805         if (rep->vport == MLX5_VPORT_UPLINK) {
1806                 err = mlx5e_create_mdev_resources(dev);
1807                 if (err)
1808                         goto err_destroy_netdev;
1809         }
1810
1811         err = mlx5e_attach_netdev(netdev_priv(netdev));
1812         if (err) {
1813                 pr_warn("Failed to attach representor netdev for vport %d\n",
1814                         rep->vport);
1815                 goto err_destroy_mdev_resources;
1816         }
1817
1818         err = mlx5e_rep_neigh_init(rpriv);
1819         if (err) {
1820                 pr_warn("Failed to initialized neighbours handling for vport %d\n",
1821                         rep->vport);
1822                 goto err_detach_netdev;
1823         }
1824
1825         err = register_devlink_port(dev, rpriv);
1826         if (err) {
1827                 esw_warn(dev, "Failed to register devlink port %d\n",
1828                          rep->vport);
1829                 goto err_neigh_cleanup;
1830         }
1831
1832         err = register_netdev(netdev);
1833         if (err) {
1834                 pr_warn("Failed to register representor netdev for vport %d\n",
1835                         rep->vport);
1836                 goto err_devlink_cleanup;
1837         }
1838
1839         if (is_devlink_port_supported(dev, rpriv))
1840                 devlink_port_type_eth_set(&rpriv->dl_port, netdev);
1841         return 0;
1842
1843 err_devlink_cleanup:
1844         unregister_devlink_port(dev, rpriv);
1845
1846 err_neigh_cleanup:
1847         mlx5e_rep_neigh_cleanup(rpriv);
1848
1849 err_detach_netdev:
1850         mlx5e_detach_netdev(netdev_priv(netdev));
1851
1852 err_destroy_mdev_resources:
1853         if (rep->vport == MLX5_VPORT_UPLINK)
1854                 mlx5e_destroy_mdev_resources(dev);
1855
1856 err_destroy_netdev:
1857         mlx5e_destroy_netdev(netdev_priv(netdev));
1858         kfree(rpriv);
1859         return err;
1860 }
1861
1862 static void
1863 mlx5e_vport_rep_unload(struct mlx5_eswitch_rep *rep)
1864 {
1865         struct mlx5e_rep_priv *rpriv = mlx5e_rep_to_rep_priv(rep);
1866         struct net_device *netdev = rpriv->netdev;
1867         struct mlx5e_priv *priv = netdev_priv(netdev);
1868         struct mlx5_core_dev *dev = priv->mdev;
1869         void *ppriv = priv->ppriv;
1870
1871         if (is_devlink_port_supported(dev, rpriv))
1872                 devlink_port_type_clear(&rpriv->dl_port);
1873         unregister_netdev(netdev);
1874         unregister_devlink_port(dev, rpriv);
1875         mlx5e_rep_neigh_cleanup(rpriv);
1876         mlx5e_detach_netdev(priv);
1877         if (rep->vport == MLX5_VPORT_UPLINK)
1878                 mlx5e_destroy_mdev_resources(priv->mdev);
1879         mlx5e_destroy_netdev(priv);
1880         kfree(ppriv); /* mlx5e_rep_priv */
1881 }
1882
1883 static void *mlx5e_vport_rep_get_proto_dev(struct mlx5_eswitch_rep *rep)
1884 {
1885         struct mlx5e_rep_priv *rpriv;
1886
1887         rpriv = mlx5e_rep_to_rep_priv(rep);
1888
1889         return rpriv->netdev;
1890 }
1891
1892 static const struct mlx5_eswitch_rep_ops rep_ops = {
1893         .load = mlx5e_vport_rep_load,
1894         .unload = mlx5e_vport_rep_unload,
1895         .get_proto_dev = mlx5e_vport_rep_get_proto_dev
1896 };
1897
1898 void mlx5e_rep_register_vport_reps(struct mlx5_core_dev *mdev)
1899 {
1900         struct mlx5_eswitch *esw = mdev->priv.eswitch;
1901
1902         mlx5_eswitch_register_vport_reps(esw, &rep_ops, REP_ETH);
1903 }
1904
1905 void mlx5e_rep_unregister_vport_reps(struct mlx5_core_dev *mdev)
1906 {
1907         struct mlx5_eswitch *esw = mdev->priv.eswitch;
1908
1909         mlx5_eswitch_unregister_vport_reps(esw, REP_ETH);
1910 }