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

   1 /*
   2  * Copyright (c) 2015-2016, 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 <net/tc_act/tc_gact.h>
  34 #include <net/pkt_cls.h>
  35 #include <linux/mlx5/fs.h>
  36 #include <net/vxlan.h>
  37 #include "en.h"
  38 #include "en_tc.h"
  39 #include "eswitch.h"
  40 #include "vxlan.h"
  41
  42 struct mlx5e_rq_param {
  43         u32                        rqc[MLX5_ST_SZ_DW(rqc)];
  44         struct mlx5_wq_param       wq;
  45 };
  46
  47 struct mlx5e_sq_param {
  48         u32                        sqc[MLX5_ST_SZ_DW(sqc)];
  49         struct mlx5_wq_param       wq;
  50         u16                        max_inline;
  51         bool                       icosq;
  52 };
  53
  54 struct mlx5e_cq_param {
  55         u32                        cqc[MLX5_ST_SZ_DW(cqc)];
  56         struct mlx5_wq_param       wq;
  57         u16                        eq_ix;
  58 };
  59
  60 struct mlx5e_channel_param {
  61         struct mlx5e_rq_param      rq;
  62         struct mlx5e_sq_param      sq;
  63         struct mlx5e_sq_param      icosq;
  64         struct mlx5e_cq_param      rx_cq;
  65         struct mlx5e_cq_param      tx_cq;
  66         struct mlx5e_cq_param      icosq_cq;
  67 };
  68
  69 static void mlx5e_update_carrier(struct mlx5e_priv *priv)
  70 {
  71         struct mlx5_core_dev *mdev = priv->mdev;
  72         u8 port_state;
  73
  74         port_state = mlx5_query_vport_state(mdev,
  75                 MLX5_QUERY_VPORT_STATE_IN_OP_MOD_VNIC_VPORT, 0);
  76
  77         if (port_state == VPORT_STATE_UP)
  78                 netif_carrier_on(priv->netdev);
  79         else
  80                 netif_carrier_off(priv->netdev);
  81 }
  82
  83 static void mlx5e_update_carrier_work(struct work_struct *work)
  84 {
  85         struct mlx5e_priv *priv = container_of(work, struct mlx5e_priv,
  86                                                update_carrier_work);
  87
  88         mutex_lock(&priv->state_lock);
  89         if (test_bit(MLX5E_STATE_OPENED, &priv->state))
  90                 mlx5e_update_carrier(priv);
  91         mutex_unlock(&priv->state_lock);
  92 }
  93
  94 static void mlx5e_update_sw_counters(struct mlx5e_priv *priv)
  95 {
  96         struct mlx5e_sw_stats *s = &priv->stats.sw;
  97         struct mlx5e_rq_stats *rq_stats;
  98         struct mlx5e_sq_stats *sq_stats;
  99         u64 tx_offload_none = 0;
 100         int i, j;
 101
 102         memset(s, 0, sizeof(*s));
 103         for (i = 0; i < priv->params.num_channels; i++) {
 104                 rq_stats = &priv->channel[i]->rq.stats;
 105
 106                 s->rx_packets   += rq_stats->packets;
 107                 s->rx_bytes     += rq_stats->bytes;
 108                 s->lro_packets  += rq_stats->lro_packets;
 109                 s->lro_bytes    += rq_stats->lro_bytes;
 110                 s->rx_csum_none += rq_stats->csum_none;
 111                 s->rx_csum_sw   += rq_stats->csum_sw;
 112                 s->rx_csum_inner += rq_stats->csum_inner;
 113                 s->rx_wqe_err   += rq_stats->wqe_err;
 114                 s->rx_mpwqe_filler += rq_stats->mpwqe_filler;
 115                 s->rx_mpwqe_frag   += rq_stats->mpwqe_frag;
 116                 s->rx_buff_alloc_err += rq_stats->buff_alloc_err;
 117
 118                 for (j = 0; j < priv->params.num_tc; j++) {
 119                         sq_stats = &priv->channel[i]->sq[j].stats;
 120
 121                         s->tx_packets           += sq_stats->packets;
 122                         s->tx_bytes             += sq_stats->bytes;
 123                         s->tso_packets          += sq_stats->tso_packets;
 124                         s->tso_bytes            += sq_stats->tso_bytes;
 125                         s->tso_inner_packets    += sq_stats->tso_inner_packets;
 126                         s->tso_inner_bytes      += sq_stats->tso_inner_bytes;
 127                         s->tx_queue_stopped     += sq_stats->stopped;
 128                         s->tx_queue_wake        += sq_stats->wake;
 129                         s->tx_queue_dropped     += sq_stats->dropped;
 130                         s->tx_csum_inner        += sq_stats->csum_offload_inner;
 131                         tx_offload_none         += sq_stats->csum_offload_none;
 132                 }
 133         }
 134
 135         /* Update calculated offload counters */
 136         s->tx_csum_offload = s->tx_packets - tx_offload_none - s->tx_csum_inner;
 137         s->rx_csum_good    = s->rx_packets - s->rx_csum_none -
 138                              s->rx_csum_sw;
 139
 140         s->link_down_events = MLX5_GET(ppcnt_reg,
 141                                 priv->stats.pport.phy_counters,
 142                                 counter_set.phys_layer_cntrs.link_down_events);
 143 }
 144
 145 static void mlx5e_update_vport_counters(struct mlx5e_priv *priv)
 146 {
 147         int outlen = MLX5_ST_SZ_BYTES(query_vport_counter_out);
 148         u32 *out = (u32 *)priv->stats.vport.query_vport_out;
 149         u32 in[MLX5_ST_SZ_DW(query_vport_counter_in)];
 150         struct mlx5_core_dev *mdev = priv->mdev;
 151
 152         memset(in, 0, sizeof(in));
 153
 154         MLX5_SET(query_vport_counter_in, in, opcode,
 155                  MLX5_CMD_OP_QUERY_VPORT_COUNTER);
 156         MLX5_SET(query_vport_counter_in, in, op_mod, 0);
 157         MLX5_SET(query_vport_counter_in, in, other_vport, 0);
 158
 159         memset(out, 0, outlen);
 160
 161         mlx5_cmd_exec(mdev, in, sizeof(in), out, outlen);
 162 }
 163
 164 static void mlx5e_update_pport_counters(struct mlx5e_priv *priv)
 165 {
 166         struct mlx5e_pport_stats *pstats = &priv->stats.pport;
 167         struct mlx5_core_dev *mdev = priv->mdev;
 168         int sz = MLX5_ST_SZ_BYTES(ppcnt_reg);
 169         int prio;
 170         void *out;
 171         u32 *in;
 172
 173         in = mlx5_vzalloc(sz);
 174         if (!in)
 175                 goto free_out;
 176
 177         MLX5_SET(ppcnt_reg, in, local_port, 1);
 178
 179         out = pstats->IEEE_802_3_counters;
 180         MLX5_SET(ppcnt_reg, in, grp, MLX5_IEEE_802_3_COUNTERS_GROUP);
 181         mlx5_core_access_reg(mdev, in, sz, out, sz, MLX5_REG_PPCNT, 0, 0);
 182
 183         out = pstats->RFC_2863_counters;
 184         MLX5_SET(ppcnt_reg, in, grp, MLX5_RFC_2863_COUNTERS_GROUP);
 185         mlx5_core_access_reg(mdev, in, sz, out, sz, MLX5_REG_PPCNT, 0, 0);
 186
 187         out = pstats->RFC_2819_counters;
 188         MLX5_SET(ppcnt_reg, in, grp, MLX5_RFC_2819_COUNTERS_GROUP);
 189         mlx5_core_access_reg(mdev, in, sz, out, sz, MLX5_REG_PPCNT, 0, 0);
 190
 191         out = pstats->phy_counters;
 192         MLX5_SET(ppcnt_reg, in, grp, MLX5_PHYSICAL_LAYER_COUNTERS_GROUP);
 193         mlx5_core_access_reg(mdev, in, sz, out, sz, MLX5_REG_PPCNT, 0, 0);
 194
 195         MLX5_SET(ppcnt_reg, in, grp, MLX5_PER_PRIORITY_COUNTERS_GROUP);
 196         for (prio = 0; prio < NUM_PPORT_PRIO; prio++) {
 197                 out = pstats->per_prio_counters[prio];
 198                 MLX5_SET(ppcnt_reg, in, prio_tc, prio);
 199                 mlx5_core_access_reg(mdev, in, sz, out, sz,
 200                                      MLX5_REG_PPCNT, 0, 0);
 201         }
 202
 203 free_out:
 204         kvfree(in);
 205 }
 206
 207 static void mlx5e_update_q_counter(struct mlx5e_priv *priv)
 208 {
 209         struct mlx5e_qcounter_stats *qcnt = &priv->stats.qcnt;
 210
 211         if (!priv->q_counter)
 212                 return;
 213
 214         mlx5_core_query_out_of_buffer(priv->mdev, priv->q_counter,
 215                                       &qcnt->rx_out_of_buffer);
 216 }
 217
 218 void mlx5e_update_stats(struct mlx5e_priv *priv)
 219 {
 220         mlx5e_update_q_counter(priv);
 221         mlx5e_update_vport_counters(priv);
 222         mlx5e_update_pport_counters(priv);
 223         mlx5e_update_sw_counters(priv);
 224 }
 225
 226 static void mlx5e_update_stats_work(struct work_struct *work)
 227 {
 228         struct delayed_work *dwork = to_delayed_work(work);
 229         struct mlx5e_priv *priv = container_of(dwork, struct mlx5e_priv,
 230                                                update_stats_work);
 231         mutex_lock(&priv->state_lock);
 232         if (test_bit(MLX5E_STATE_OPENED, &priv->state)) {
 233                 mlx5e_update_stats(priv);
 234                 schedule_delayed_work(dwork,
 235                                       msecs_to_jiffies(
 236                                               MLX5E_UPDATE_STATS_INTERVAL));
 237         }
 238         mutex_unlock(&priv->state_lock);
 239 }
 240
 241 static void mlx5e_async_event(struct mlx5_core_dev *mdev, void *vpriv,
 242                               enum mlx5_dev_event event, unsigned long param)
 243 {
 244         struct mlx5e_priv *priv = vpriv;
 245
 246         if (!test_bit(MLX5E_STATE_ASYNC_EVENTS_ENABLE, &priv->state))
 247                 return;
 248
 249         switch (event) {
 250         case MLX5_DEV_EVENT_PORT_UP:
 251         case MLX5_DEV_EVENT_PORT_DOWN:
 252                 schedule_work(&priv->update_carrier_work);
 253                 break;
 254
 255         default:
 256                 break;
 257         }
 258 }
 259
 260 static void mlx5e_enable_async_events(struct mlx5e_priv *priv)
 261 {
 262         set_bit(MLX5E_STATE_ASYNC_EVENTS_ENABLE, &priv->state);
 263 }
 264
 265 static void mlx5e_disable_async_events(struct mlx5e_priv *priv)
 266 {
 267         clear_bit(MLX5E_STATE_ASYNC_EVENTS_ENABLE, &priv->state);
 268         synchronize_irq(mlx5_get_msix_vec(priv->mdev, MLX5_EQ_VEC_ASYNC));
 269 }
 270
 271 #define MLX5E_HW2SW_MTU(hwmtu) (hwmtu - (ETH_HLEN + VLAN_HLEN + ETH_FCS_LEN))
 272 #define MLX5E_SW2HW_MTU(swmtu) (swmtu + (ETH_HLEN + VLAN_HLEN + ETH_FCS_LEN))
 273
 274 static int mlx5e_create_rq(struct mlx5e_channel *c,
 275                            struct mlx5e_rq_param *param,
 276                            struct mlx5e_rq *rq)
 277 {
 278         struct mlx5e_priv *priv = c->priv;
 279         struct mlx5_core_dev *mdev = priv->mdev;
 280         void *rqc = param->rqc;
 281         void *rqc_wq = MLX5_ADDR_OF(rqc, rqc, wq);
 282         u32 byte_count;
 283         int wq_sz;
 284         int err;
 285         int i;
 286
 287         param->wq.db_numa_node = cpu_to_node(c->cpu);
 288
 289         err = mlx5_wq_ll_create(mdev, &param->wq, rqc_wq, &rq->wq,
 290                                 &rq->wq_ctrl);
 291         if (err)
 292                 return err;
 293
 294         rq->wq.db = &rq->wq.db[MLX5_RCV_DBR];
 295
 296         wq_sz = mlx5_wq_ll_get_size(&rq->wq);
 297
 298         switch (priv->params.rq_wq_type) {
 299         case MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ:
 300                 rq->wqe_info = kzalloc_node(wq_sz * sizeof(*rq->wqe_info),
 301                                             GFP_KERNEL, cpu_to_node(c->cpu));
 302                 if (!rq->wqe_info) {
 303                         err = -ENOMEM;
 304                         goto err_rq_wq_destroy;
 305                 }
 306                 rq->handle_rx_cqe = mlx5e_handle_rx_cqe_mpwrq;
 307                 rq->alloc_wqe = mlx5e_alloc_rx_mpwqe;
 308
 309                 rq->wqe_sz = MLX5_MPWRQ_NUM_STRIDES * MLX5_MPWRQ_STRIDE_SIZE;
 310                 byte_count = rq->wqe_sz;
 311                 break;
 312         default: /* MLX5_WQ_TYPE_LINKED_LIST */
 313                 rq->skb = kzalloc_node(wq_sz * sizeof(*rq->skb), GFP_KERNEL,
 314                                        cpu_to_node(c->cpu));
 315                 if (!rq->skb) {
 316                         err = -ENOMEM;
 317                         goto err_rq_wq_destroy;
 318                 }
 319                 rq->handle_rx_cqe = mlx5e_handle_rx_cqe;
 320                 rq->alloc_wqe = mlx5e_alloc_rx_wqe;
 321
 322                 rq->wqe_sz = (priv->params.lro_en) ?
 323                                 priv->params.lro_wqe_sz :
 324                                 MLX5E_SW2HW_MTU(priv->netdev->mtu);
 325                 rq->wqe_sz = SKB_DATA_ALIGN(rq->wqe_sz);
 326                 byte_count = rq->wqe_sz;
 327                 byte_count |= MLX5_HW_START_PADDING;
 328         }
 329
 330         for (i = 0; i < wq_sz; i++) {
 331                 struct mlx5e_rx_wqe *wqe = mlx5_wq_ll_get_wqe(&rq->wq, i);
 332
 333                 wqe->data.byte_count = cpu_to_be32(byte_count);
 334         }
 335
 336         rq->wq_type = priv->params.rq_wq_type;
 337         rq->pdev    = c->pdev;
 338         rq->netdev  = c->netdev;
 339         rq->tstamp  = &priv->tstamp;
 340         rq->channel = c;
 341         rq->ix      = c->ix;
 342         rq->priv    = c->priv;
 343         rq->mkey_be = c->mkey_be;
 344         rq->umr_mkey_be = cpu_to_be32(c->priv->umr_mkey.key);
 345
 346         return 0;
 347
 348 err_rq_wq_destroy:
 349         mlx5_wq_destroy(&rq->wq_ctrl);
 350
 351         return err;
 352 }
 353
 354 static void mlx5e_destroy_rq(struct mlx5e_rq *rq)
 355 {
 356         switch (rq->wq_type) {
 357         case MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ:
 358                 kfree(rq->wqe_info);
 359                 break;
 360         default: /* MLX5_WQ_TYPE_LINKED_LIST */
 361                 kfree(rq->skb);
 362         }
 363
 364         mlx5_wq_destroy(&rq->wq_ctrl);
 365 }
 366
 367 static int mlx5e_enable_rq(struct mlx5e_rq *rq, struct mlx5e_rq_param *param)
 368 {
 369         struct mlx5e_priv *priv = rq->priv;
 370         struct mlx5_core_dev *mdev = priv->mdev;
 371
 372         void *in;
 373         void *rqc;
 374         void *wq;
 375         int inlen;
 376         int err;
 377
 378         inlen = MLX5_ST_SZ_BYTES(create_rq_in) +
 379                 sizeof(u64) * rq->wq_ctrl.buf.npages;
 380         in = mlx5_vzalloc(inlen);
 381         if (!in)
 382                 return -ENOMEM;
 383
 384         rqc = MLX5_ADDR_OF(create_rq_in, in, ctx);
 385         wq  = MLX5_ADDR_OF(rqc, rqc, wq);
 386
 387         memcpy(rqc, param->rqc, sizeof(param->rqc));
 388
 389         MLX5_SET(rqc,  rqc, cqn,                rq->cq.mcq.cqn);
 390         MLX5_SET(rqc,  rqc, state,              MLX5_RQC_STATE_RST);
 391         MLX5_SET(rqc,  rqc, flush_in_error_en,  1);
 392         MLX5_SET(rqc,  rqc, vsd, priv->params.vlan_strip_disable);
 393         MLX5_SET(wq,   wq,  log_wq_pg_sz,       rq->wq_ctrl.buf.page_shift -
 394                                                 MLX5_ADAPTER_PAGE_SHIFT);
 395         MLX5_SET64(wq, wq,  dbr_addr,           rq->wq_ctrl.db.dma);
 396
 397         mlx5_fill_page_array(&rq->wq_ctrl.buf,
 398                              (__be64 *)MLX5_ADDR_OF(wq, wq, pas));
 399
 400         err = mlx5_core_create_rq(mdev, in, inlen, &rq->rqn);
 401
 402         kvfree(in);
 403
 404         return err;
 405 }
 406
 407 static int mlx5e_modify_rq_state(struct mlx5e_rq *rq, int curr_state,
 408                                  int next_state)
 409 {
 410         struct mlx5e_channel *c = rq->channel;
 411         struct mlx5e_priv *priv = c->priv;
 412         struct mlx5_core_dev *mdev = priv->mdev;
 413
 414         void *in;
 415         void *rqc;
 416         int inlen;
 417         int err;
 418
 419         inlen = MLX5_ST_SZ_BYTES(modify_rq_in);
 420         in = mlx5_vzalloc(inlen);
 421         if (!in)
 422                 return -ENOMEM;
 423
 424         rqc = MLX5_ADDR_OF(modify_rq_in, in, ctx);
 425
 426         MLX5_SET(modify_rq_in, in, rq_state, curr_state);
 427         MLX5_SET(rqc, rqc, state, next_state);
 428
 429         err = mlx5_core_modify_rq(mdev, rq->rqn, in, inlen);
 430
 431         kvfree(in);
 432
 433         return err;
 434 }
 435
 436 static int mlx5e_modify_rq_vsd(struct mlx5e_rq *rq, bool vsd)
 437 {
 438         struct mlx5e_channel *c = rq->channel;
 439         struct mlx5e_priv *priv = c->priv;
 440         struct mlx5_core_dev *mdev = priv->mdev;
 441
 442         void *in;
 443         void *rqc;
 444         int inlen;
 445         int err;
 446
 447         inlen = MLX5_ST_SZ_BYTES(modify_rq_in);
 448         in = mlx5_vzalloc(inlen);
 449         if (!in)
 450                 return -ENOMEM;
 451
 452         rqc = MLX5_ADDR_OF(modify_rq_in, in, ctx);
 453
 454         MLX5_SET(modify_rq_in, in, rq_state, MLX5_RQC_STATE_RDY);
 455         MLX5_SET64(modify_rq_in, in, modify_bitmask, MLX5_RQ_BITMASK_VSD);
 456         MLX5_SET(rqc, rqc, vsd, vsd);
 457         MLX5_SET(rqc, rqc, state, MLX5_RQC_STATE_RDY);
 458
 459         err = mlx5_core_modify_rq(mdev, rq->rqn, in, inlen);
 460
 461         kvfree(in);
 462
 463         return err;
 464 }
 465
 466 static void mlx5e_disable_rq(struct mlx5e_rq *rq)
 467 {
 468         mlx5_core_destroy_rq(rq->priv->mdev, rq->rqn);
 469 }
 470
 471 static int mlx5e_wait_for_min_rx_wqes(struct mlx5e_rq *rq)
 472 {
 473         unsigned long exp_time = jiffies + msecs_to_jiffies(20000);
 474         struct mlx5e_channel *c = rq->channel;
 475         struct mlx5e_priv *priv = c->priv;
 476         struct mlx5_wq_ll *wq = &rq->wq;
 477
 478         while (time_before(jiffies, exp_time)) {
 479                 if (wq->cur_sz >= priv->params.min_rx_wqes)
 480                         return 0;
 481
 482                 msleep(20);
 483         }
 484
 485         return -ETIMEDOUT;
 486 }
 487
 488 static int mlx5e_open_rq(struct mlx5e_channel *c,
 489                          struct mlx5e_rq_param *param,
 490                          struct mlx5e_rq *rq)
 491 {
 492         struct mlx5e_sq *sq = &c->icosq;
 493         u16 pi = sq->pc & sq->wq.sz_m1;
 494         int err;
 495
 496         err = mlx5e_create_rq(c, param, rq);
 497         if (err)
 498                 return err;
 499
 500         err = mlx5e_enable_rq(rq, param);
 501         if (err)
 502                 goto err_destroy_rq;
 503
 504         err = mlx5e_modify_rq_state(rq, MLX5_RQC_STATE_RST, MLX5_RQC_STATE_RDY);
 505         if (err)
 506                 goto err_disable_rq;
 507
 508         set_bit(MLX5E_RQ_STATE_POST_WQES_ENABLE, &rq->state);
 509
 510         sq->ico_wqe_info[pi].opcode     = MLX5_OPCODE_NOP;
 511         sq->ico_wqe_info[pi].num_wqebbs = 1;
 512         mlx5e_send_nop(sq, true); /* trigger mlx5e_post_rx_wqes() */
 513
 514         return 0;
 515
 516 err_disable_rq:
 517         mlx5e_disable_rq(rq);
 518 err_destroy_rq:
 519         mlx5e_destroy_rq(rq);
 520
 521         return err;
 522 }
 523
 524 static void mlx5e_close_rq(struct mlx5e_rq *rq)
 525 {
 526         clear_bit(MLX5E_RQ_STATE_POST_WQES_ENABLE, &rq->state);
 527         napi_synchronize(&rq->channel->napi); /* prevent mlx5e_post_rx_wqes */
 528
 529         mlx5e_modify_rq_state(rq, MLX5_RQC_STATE_RDY, MLX5_RQC_STATE_ERR);
 530         while (!mlx5_wq_ll_is_empty(&rq->wq))
 531                 msleep(20);
 532
 533         /* avoid destroying rq before mlx5e_poll_rx_cq() is done with it */
 534         napi_synchronize(&rq->channel->napi);
 535
 536         mlx5e_disable_rq(rq);
 537         mlx5e_destroy_rq(rq);
 538 }
 539
 540 static void mlx5e_free_sq_db(struct mlx5e_sq *sq)
 541 {
 542         kfree(sq->wqe_info);
 543         kfree(sq->dma_fifo);
 544         kfree(sq->skb);
 545 }
 546
 547 static int mlx5e_alloc_sq_db(struct mlx5e_sq *sq, int numa)
 548 {
 549         int wq_sz = mlx5_wq_cyc_get_size(&sq->wq);
 550         int df_sz = wq_sz * MLX5_SEND_WQEBB_NUM_DS;
 551
 552         sq->skb = kzalloc_node(wq_sz * sizeof(*sq->skb), GFP_KERNEL, numa);
 553         sq->dma_fifo = kzalloc_node(df_sz * sizeof(*sq->dma_fifo), GFP_KERNEL,
 554                                     numa);
 555         sq->wqe_info = kzalloc_node(wq_sz * sizeof(*sq->wqe_info), GFP_KERNEL,
 556                                     numa);
 557
 558         if (!sq->skb || !sq->dma_fifo || !sq->wqe_info) {
 559                 mlx5e_free_sq_db(sq);
 560                 return -ENOMEM;
 561         }
 562
 563         sq->dma_fifo_mask = df_sz - 1;
 564
 565         return 0;
 566 }
 567
 568 static int mlx5e_create_sq(struct mlx5e_channel *c,
 569                            int tc,
 570                            struct mlx5e_sq_param *param,
 571                            struct mlx5e_sq *sq)
 572 {
 573         struct mlx5e_priv *priv = c->priv;
 574         struct mlx5_core_dev *mdev = priv->mdev;
 575
 576         void *sqc = param->sqc;
 577         void *sqc_wq = MLX5_ADDR_OF(sqc, sqc, wq);
 578         int err;
 579
 580         err = mlx5_alloc_map_uar(mdev, &sq->uar, true);
 581         if (err)
 582                 return err;
 583
 584         param->wq.db_numa_node = cpu_to_node(c->cpu);
 585
 586         err = mlx5_wq_cyc_create(mdev, &param->wq, sqc_wq, &sq->wq,
 587                                  &sq->wq_ctrl);
 588         if (err)
 589                 goto err_unmap_free_uar;
 590
 591         sq->wq.db       = &sq->wq.db[MLX5_SND_DBR];
 592         if (sq->uar.bf_map) {
 593                 set_bit(MLX5E_SQ_STATE_BF_ENABLE, &sq->state);
 594                 sq->uar_map = sq->uar.bf_map;
 595         } else {
 596                 sq->uar_map = sq->uar.map;
 597         }
 598         sq->bf_buf_size = (1 << MLX5_CAP_GEN(mdev, log_bf_reg_size)) / 2;
 599         sq->max_inline  = param->max_inline;
 600
 601         err = mlx5e_alloc_sq_db(sq, cpu_to_node(c->cpu));
 602         if (err)
 603                 goto err_sq_wq_destroy;
 604
 605         if (param->icosq) {
 606                 u8 wq_sz = mlx5_wq_cyc_get_size(&sq->wq);
 607
 608                 sq->ico_wqe_info = kzalloc_node(sizeof(*sq->ico_wqe_info) *
 609                                                 wq_sz,
 610                                                 GFP_KERNEL,
 611                                                 cpu_to_node(c->cpu));
 612                 if (!sq->ico_wqe_info) {
 613                         err = -ENOMEM;
 614                         goto err_free_sq_db;
 615                 }
 616         } else {
 617                 int txq_ix;
 618
 619                 txq_ix = c->ix + tc * priv->params.num_channels;
 620                 sq->txq = netdev_get_tx_queue(priv->netdev, txq_ix);
 621                 priv->txq_to_sq_map[txq_ix] = sq;
 622         }
 623
 624         sq->pdev      = c->pdev;
 625         sq->tstamp    = &priv->tstamp;
 626         sq->mkey_be   = c->mkey_be;
 627         sq->channel   = c;
 628         sq->tc        = tc;
 629         sq->edge      = (sq->wq.sz_m1 + 1) - MLX5_SEND_WQE_MAX_WQEBBS;
 630         sq->bf_budget = MLX5E_SQ_BF_BUDGET;
 631
 632         return 0;
 633
 634 err_free_sq_db:
 635         mlx5e_free_sq_db(sq);
 636
 637 err_sq_wq_destroy:
 638         mlx5_wq_destroy(&sq->wq_ctrl);
 639
 640 err_unmap_free_uar:
 641         mlx5_unmap_free_uar(mdev, &sq->uar);
 642
 643         return err;
 644 }
 645
 646 static void mlx5e_destroy_sq(struct mlx5e_sq *sq)
 647 {
 648         struct mlx5e_channel *c = sq->channel;
 649         struct mlx5e_priv *priv = c->priv;
 650
 651         kfree(sq->ico_wqe_info);
 652         mlx5e_free_sq_db(sq);
 653         mlx5_wq_destroy(&sq->wq_ctrl);
 654         mlx5_unmap_free_uar(priv->mdev, &sq->uar);
 655 }
 656
 657 static int mlx5e_enable_sq(struct mlx5e_sq *sq, struct mlx5e_sq_param *param)
 658 {
 659         struct mlx5e_channel *c = sq->channel;
 660         struct mlx5e_priv *priv = c->priv;
 661         struct mlx5_core_dev *mdev = priv->mdev;
 662
 663         void *in;
 664         void *sqc;
 665         void *wq;
 666         int inlen;
 667         int err;
 668
 669         inlen = MLX5_ST_SZ_BYTES(create_sq_in) +
 670                 sizeof(u64) * sq->wq_ctrl.buf.npages;
 671         in = mlx5_vzalloc(inlen);
 672         if (!in)
 673                 return -ENOMEM;
 674
 675         sqc = MLX5_ADDR_OF(create_sq_in, in, ctx);
 676         wq = MLX5_ADDR_OF(sqc, sqc, wq);
 677
 678         memcpy(sqc, param->sqc, sizeof(param->sqc));
 679
 680         MLX5_SET(sqc,  sqc, tis_num_0, param->icosq ? 0 : priv->tisn[sq->tc]);
 681         MLX5_SET(sqc,  sqc, cqn,                sq->cq.mcq.cqn);
 682         MLX5_SET(sqc,  sqc, state,              MLX5_SQC_STATE_RST);
 683         MLX5_SET(sqc,  sqc, tis_lst_sz,         param->icosq ? 0 : 1);
 684         MLX5_SET(sqc,  sqc, flush_in_error_en,  1);
 685
 686         MLX5_SET(wq,   wq, wq_type,       MLX5_WQ_TYPE_CYCLIC);
 687         MLX5_SET(wq,   wq, uar_page,      sq->uar.index);
 688         MLX5_SET(wq,   wq, log_wq_pg_sz,  sq->wq_ctrl.buf.page_shift -
 689                                           MLX5_ADAPTER_PAGE_SHIFT);
 690         MLX5_SET64(wq, wq, dbr_addr,      sq->wq_ctrl.db.dma);
 691
 692         mlx5_fill_page_array(&sq->wq_ctrl.buf,
 693                              (__be64 *)MLX5_ADDR_OF(wq, wq, pas));
 694
 695         err = mlx5_core_create_sq(mdev, in, inlen, &sq->sqn);
 696
 697         kvfree(in);
 698
 699         return err;
 700 }
 701
 702 static int mlx5e_modify_sq(struct mlx5e_sq *sq, int curr_state, int next_state)
 703 {
 704         struct mlx5e_channel *c = sq->channel;
 705         struct mlx5e_priv *priv = c->priv;
 706         struct mlx5_core_dev *mdev = priv->mdev;
 707
 708         void *in;
 709         void *sqc;
 710         int inlen;
 711         int err;
 712
 713         inlen = MLX5_ST_SZ_BYTES(modify_sq_in);
 714         in = mlx5_vzalloc(inlen);
 715         if (!in)
 716                 return -ENOMEM;
 717
 718         sqc = MLX5_ADDR_OF(modify_sq_in, in, ctx);
 719
 720         MLX5_SET(modify_sq_in, in, sq_state, curr_state);
 721         MLX5_SET(sqc, sqc, state, next_state);
 722
 723         err = mlx5_core_modify_sq(mdev, sq->sqn, in, inlen);
 724
 725         kvfree(in);
 726
 727         return err;
 728 }
 729
 730 static void mlx5e_disable_sq(struct mlx5e_sq *sq)
 731 {
 732         struct mlx5e_channel *c = sq->channel;
 733         struct mlx5e_priv *priv = c->priv;
 734         struct mlx5_core_dev *mdev = priv->mdev;
 735
 736         mlx5_core_destroy_sq(mdev, sq->sqn);
 737 }
 738
 739 static int mlx5e_open_sq(struct mlx5e_channel *c,
 740                          int tc,
 741                          struct mlx5e_sq_param *param,
 742                          struct mlx5e_sq *sq)
 743 {
 744         int err;
 745
 746         err = mlx5e_create_sq(c, tc, param, sq);
 747         if (err)
 748                 return err;
 749
 750         err = mlx5e_enable_sq(sq, param);
 751         if (err)
 752                 goto err_destroy_sq;
 753
 754         err = mlx5e_modify_sq(sq, MLX5_SQC_STATE_RST, MLX5_SQC_STATE_RDY);
 755         if (err)
 756                 goto err_disable_sq;
 757
 758         if (sq->txq) {
 759                 set_bit(MLX5E_SQ_STATE_WAKE_TXQ_ENABLE, &sq->state);
 760                 netdev_tx_reset_queue(sq->txq);
 761                 netif_tx_start_queue(sq->txq);
 762         }
 763
 764         return 0;
 765
 766 err_disable_sq:
 767         mlx5e_disable_sq(sq);
 768 err_destroy_sq:
 769         mlx5e_destroy_sq(sq);
 770
 771         return err;
 772 }
 773
 774 static inline void netif_tx_disable_queue(struct netdev_queue *txq)
 775 {
 776         __netif_tx_lock_bh(txq);
 777         netif_tx_stop_queue(txq);
 778         __netif_tx_unlock_bh(txq);
 779 }
 780
 781 static void mlx5e_close_sq(struct mlx5e_sq *sq)
 782 {
 783         if (sq->txq) {
 784                 clear_bit(MLX5E_SQ_STATE_WAKE_TXQ_ENABLE, &sq->state);
 785                 /* prevent netif_tx_wake_queue */
 786                 napi_synchronize(&sq->channel->napi);
 787                 netif_tx_disable_queue(sq->txq);
 788
 789                 /* ensure hw is notified of all pending wqes */
 790                 if (mlx5e_sq_has_room_for(sq, 1))
 791                         mlx5e_send_nop(sq, true);
 792
 793                 mlx5e_modify_sq(sq, MLX5_SQC_STATE_RDY, MLX5_SQC_STATE_ERR);
 794         }
 795
 796         while (sq->cc != sq->pc) /* wait till sq is empty */
 797                 msleep(20);
 798
 799         /* avoid destroying sq before mlx5e_poll_tx_cq() is done with it */
 800         napi_synchronize(&sq->channel->napi);
 801
 802         mlx5e_disable_sq(sq);
 803         mlx5e_destroy_sq(sq);
 804 }
 805
 806 static int mlx5e_create_cq(struct mlx5e_channel *c,
 807                            struct mlx5e_cq_param *param,
 808                            struct mlx5e_cq *cq)
 809 {
 810         struct mlx5e_priv *priv = c->priv;
 811         struct mlx5_core_dev *mdev = priv->mdev;
 812         struct mlx5_core_cq *mcq = &cq->mcq;
 813         int eqn_not_used;
 814         unsigned int irqn;
 815         int err;
 816         u32 i;
 817
 818         param->wq.buf_numa_node = cpu_to_node(c->cpu);
 819         param->wq.db_numa_node  = cpu_to_node(c->cpu);
 820         param->eq_ix   = c->ix;
 821
 822         err = mlx5_cqwq_create(mdev, &param->wq, param->cqc, &cq->wq,
 823                                &cq->wq_ctrl);
 824         if (err)
 825                 return err;
 826
 827         mlx5_vector2eqn(mdev, param->eq_ix, &eqn_not_used, &irqn);
 828
 829         cq->napi        = &c->napi;
 830
 831         mcq->cqe_sz     = 64;
 832         mcq->set_ci_db  = cq->wq_ctrl.db.db;
 833         mcq->arm_db     = cq->wq_ctrl.db.db + 1;
 834         *mcq->set_ci_db = 0;
 835         *mcq->arm_db    = 0;
 836         mcq->vector     = param->eq_ix;
 837         mcq->comp       = mlx5e_completion_event;
 838         mcq->event      = mlx5e_cq_error_event;
 839         mcq->irqn       = irqn;
 840         mcq->uar        = &priv->cq_uar;
 841
 842         for (i = 0; i < mlx5_cqwq_get_size(&cq->wq); i++) {
 843                 struct mlx5_cqe64 *cqe = mlx5_cqwq_get_wqe(&cq->wq, i);
 844
 845                 cqe->op_own = 0xf1;
 846         }
 847
 848         cq->channel = c;
 849         cq->priv = priv;
 850
 851         return 0;
 852 }
 853
 854 static void mlx5e_destroy_cq(struct mlx5e_cq *cq)
 855 {
 856         mlx5_wq_destroy(&cq->wq_ctrl);
 857 }
 858
 859 static int mlx5e_enable_cq(struct mlx5e_cq *cq, struct mlx5e_cq_param *param)
 860 {
 861         struct mlx5e_priv *priv = cq->priv;
 862         struct mlx5_core_dev *mdev = priv->mdev;
 863         struct mlx5_core_cq *mcq = &cq->mcq;
 864
 865         void *in;
 866         void *cqc;
 867         int inlen;
 868         unsigned int irqn_not_used;
 869         int eqn;
 870         int err;
 871
 872         inlen = MLX5_ST_SZ_BYTES(create_cq_in) +
 873                 sizeof(u64) * cq->wq_ctrl.buf.npages;
 874         in = mlx5_vzalloc(inlen);
 875         if (!in)
 876                 return -ENOMEM;
 877
 878         cqc = MLX5_ADDR_OF(create_cq_in, in, cq_context);
 879
 880         memcpy(cqc, param->cqc, sizeof(param->cqc));
 881
 882         mlx5_fill_page_array(&cq->wq_ctrl.buf,
 883                              (__be64 *)MLX5_ADDR_OF(create_cq_in, in, pas));
 884
 885         mlx5_vector2eqn(mdev, param->eq_ix, &eqn, &irqn_not_used);
 886
 887         MLX5_SET(cqc,   cqc, c_eqn,         eqn);
 888         MLX5_SET(cqc,   cqc, uar_page,      mcq->uar->index);
 889         MLX5_SET(cqc,   cqc, log_page_size, cq->wq_ctrl.buf.page_shift -
 890                                             MLX5_ADAPTER_PAGE_SHIFT);
 891         MLX5_SET64(cqc, cqc, dbr_addr,      cq->wq_ctrl.db.dma);
 892
 893         err = mlx5_core_create_cq(mdev, mcq, in, inlen);
 894
 895         kvfree(in);
 896
 897         if (err)
 898                 return err;
 899
 900         mlx5e_cq_arm(cq);
 901
 902         return 0;
 903 }
 904
 905 static void mlx5e_disable_cq(struct mlx5e_cq *cq)
 906 {
 907         struct mlx5e_priv *priv = cq->priv;
 908         struct mlx5_core_dev *mdev = priv->mdev;
 909
 910         mlx5_core_destroy_cq(mdev, &cq->mcq);
 911 }
 912
 913 static int mlx5e_open_cq(struct mlx5e_channel *c,
 914                          struct mlx5e_cq_param *param,
 915                          struct mlx5e_cq *cq,
 916                          u16 moderation_usecs,
 917                          u16 moderation_frames)
 918 {
 919         int err;
 920         struct mlx5e_priv *priv = c->priv;
 921         struct mlx5_core_dev *mdev = priv->mdev;
 922
 923         err = mlx5e_create_cq(c, param, cq);
 924         if (err)
 925                 return err;
 926
 927         err = mlx5e_enable_cq(cq, param);
 928         if (err)
 929                 goto err_destroy_cq;
 930
 931         if (MLX5_CAP_GEN(mdev, cq_moderation))
 932                 mlx5_core_modify_cq_moderation(mdev, &cq->mcq,
 933                                                moderation_usecs,
 934                                                moderation_frames);
 935         return 0;
 936
 937 err_destroy_cq:
 938         mlx5e_destroy_cq(cq);
 939
 940         return err;
 941 }
 942
 943 static void mlx5e_close_cq(struct mlx5e_cq *cq)
 944 {
 945         mlx5e_disable_cq(cq);
 946         mlx5e_destroy_cq(cq);
 947 }
 948
 949 static int mlx5e_get_cpu(struct mlx5e_priv *priv, int ix)
 950 {
 951         return cpumask_first(priv->mdev->priv.irq_info[ix].mask);
 952 }
 953
 954 static int mlx5e_open_tx_cqs(struct mlx5e_channel *c,
 955                              struct mlx5e_channel_param *cparam)
 956 {
 957         struct mlx5e_priv *priv = c->priv;
 958         int err;
 959         int tc;
 960
 961         for (tc = 0; tc < c->num_tc; tc++) {
 962                 err = mlx5e_open_cq(c, &cparam->tx_cq, &c->sq[tc].cq,
 963                                     priv->params.tx_cq_moderation_usec,
 964                                     priv->params.tx_cq_moderation_pkts);
 965                 if (err)
 966                         goto err_close_tx_cqs;
 967         }
 968
 969         return 0;
 970
 971 err_close_tx_cqs:
 972         for (tc--; tc >= 0; tc--)
 973                 mlx5e_close_cq(&c->sq[tc].cq);
 974
 975         return err;
 976 }
 977
 978 static void mlx5e_close_tx_cqs(struct mlx5e_channel *c)
 979 {
 980         int tc;
 981
 982         for (tc = 0; tc < c->num_tc; tc++)
 983                 mlx5e_close_cq(&c->sq[tc].cq);
 984 }
 985
 986 static int mlx5e_open_sqs(struct mlx5e_channel *c,
 987                           struct mlx5e_channel_param *cparam)
 988 {
 989         int err;
 990         int tc;
 991
 992         for (tc = 0; tc < c->num_tc; tc++) {
 993                 err = mlx5e_open_sq(c, tc, &cparam->sq, &c->sq[tc]);
 994                 if (err)
 995                         goto err_close_sqs;
 996         }
 997
 998         return 0;
 999
1000 err_close_sqs:
1001         for (tc--; tc >= 0; tc--)
1002                 mlx5e_close_sq(&c->sq[tc]);
1003
1004         return err;
1005 }
1006
1007 static void mlx5e_close_sqs(struct mlx5e_channel *c)
1008 {
1009         int tc;
1010
1011         for (tc = 0; tc < c->num_tc; tc++)
1012                 mlx5e_close_sq(&c->sq[tc]);
1013 }
1014
1015 static void mlx5e_build_channeltc_to_txq_map(struct mlx5e_priv *priv, int ix)
1016 {
1017         int i;
1018
1019         for (i = 0; i < MLX5E_MAX_NUM_TC; i++)
1020                 priv->channeltc_to_txq_map[ix][i] =
1021                         ix + i * priv->params.num_channels;
1022 }
1023
1024 static int mlx5e_open_channel(struct mlx5e_priv *priv, int ix,
1025                               struct mlx5e_channel_param *cparam,
1026                               struct mlx5e_channel **cp)
1027 {
1028         struct net_device *netdev = priv->netdev;
1029         int cpu = mlx5e_get_cpu(priv, ix);
1030         struct mlx5e_channel *c;
1031         int err;
1032
1033         c = kzalloc_node(sizeof(*c), GFP_KERNEL, cpu_to_node(cpu));
1034         if (!c)
1035                 return -ENOMEM;
1036
1037         c->priv     = priv;
1038         c->ix       = ix;
1039         c->cpu      = cpu;
1040         c->pdev     = &priv->mdev->pdev->dev;
1041         c->netdev   = priv->netdev;
1042         c->mkey_be  = cpu_to_be32(priv->mkey.key);
1043         c->num_tc   = priv->params.num_tc;
1044
1045         mlx5e_build_channeltc_to_txq_map(priv, ix);
1046
1047         netif_napi_add(netdev, &c->napi, mlx5e_napi_poll, 64);
1048
1049         err = mlx5e_open_cq(c, &cparam->icosq_cq, &c->icosq.cq, 0, 0);
1050         if (err)
1051                 goto err_napi_del;
1052
1053         err = mlx5e_open_tx_cqs(c, cparam);
1054         if (err)
1055                 goto err_close_icosq_cq;
1056
1057         err = mlx5e_open_cq(c, &cparam->rx_cq, &c->rq.cq,
1058                             priv->params.rx_cq_moderation_usec,
1059                             priv->params.rx_cq_moderation_pkts);
1060         if (err)
1061                 goto err_close_tx_cqs;
1062
1063         napi_enable(&c->napi);
1064
1065         err = mlx5e_open_sq(c, 0, &cparam->icosq, &c->icosq);
1066         if (err)
1067                 goto err_disable_napi;
1068
1069         err = mlx5e_open_sqs(c, cparam);
1070         if (err)
1071                 goto err_close_icosq;
1072
1073         err = mlx5e_open_rq(c, &cparam->rq, &c->rq);
1074         if (err)
1075                 goto err_close_sqs;
1076
1077         netif_set_xps_queue(netdev, get_cpu_mask(c->cpu), ix);
1078         *cp = c;
1079
1080         return 0;
1081
1082 err_close_sqs:
1083         mlx5e_close_sqs(c);
1084
1085 err_close_icosq:
1086         mlx5e_close_sq(&c->icosq);
1087
1088 err_disable_napi:
1089         napi_disable(&c->napi);
1090         mlx5e_close_cq(&c->rq.cq);
1091
1092 err_close_tx_cqs:
1093         mlx5e_close_tx_cqs(c);
1094
1095 err_close_icosq_cq:
1096         mlx5e_close_cq(&c->icosq.cq);
1097
1098 err_napi_del:
1099         netif_napi_del(&c->napi);
1100         napi_hash_del(&c->napi);
1101         kfree(c);
1102
1103         return err;
1104 }
1105
1106 static void mlx5e_close_channel(struct mlx5e_channel *c)
1107 {
1108         mlx5e_close_rq(&c->rq);
1109         mlx5e_close_sqs(c);
1110         mlx5e_close_sq(&c->icosq);
1111         napi_disable(&c->napi);
1112         mlx5e_close_cq(&c->rq.cq);
1113         mlx5e_close_tx_cqs(c);
1114         mlx5e_close_cq(&c->icosq.cq);
1115         netif_napi_del(&c->napi);
1116
1117         napi_hash_del(&c->napi);
1118         synchronize_rcu();
1119
1120         kfree(c);
1121 }
1122
1123 static void mlx5e_build_rq_param(struct mlx5e_priv *priv,
1124                                  struct mlx5e_rq_param *param)
1125 {
1126         void *rqc = param->rqc;
1127         void *wq = MLX5_ADDR_OF(rqc, rqc, wq);
1128
1129         switch (priv->params.rq_wq_type) {
1130         case MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ:
1131                 MLX5_SET(wq, wq, log_wqe_num_of_strides,
1132                          MLX5_MPWRQ_LOG_NUM_STRIDES - 9);
1133                 MLX5_SET(wq, wq, log_wqe_stride_size,
1134                          MLX5_MPWRQ_LOG_STRIDE_SIZE - 6);
1135                 MLX5_SET(wq, wq, wq_type, MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ);
1136                 break;
1137         default: /* MLX5_WQ_TYPE_LINKED_LIST */
1138                 MLX5_SET(wq, wq, wq_type, MLX5_WQ_TYPE_LINKED_LIST);
1139         }
1140
1141         MLX5_SET(wq, wq, end_padding_mode, MLX5_WQ_END_PAD_MODE_ALIGN);
1142         MLX5_SET(wq, wq, log_wq_stride,    ilog2(sizeof(struct mlx5e_rx_wqe)));
1143         MLX5_SET(wq, wq, log_wq_sz,        priv->params.log_rq_size);
1144         MLX5_SET(wq, wq, pd,               priv->pdn);
1145         MLX5_SET(rqc, rqc, counter_set_id, priv->q_counter);
1146
1147         param->wq.buf_numa_node = dev_to_node(&priv->mdev->pdev->dev);
1148         param->wq.linear = 1;
1149 }
1150
1151 static void mlx5e_build_drop_rq_param(struct mlx5e_rq_param *param)
1152 {
1153         void *rqc = param->rqc;
1154         void *wq = MLX5_ADDR_OF(rqc, rqc, wq);
1155
1156         MLX5_SET(wq, wq, wq_type, MLX5_WQ_TYPE_LINKED_LIST);
1157         MLX5_SET(wq, wq, log_wq_stride,    ilog2(sizeof(struct mlx5e_rx_wqe)));
1158 }
1159
1160 static void mlx5e_build_sq_param_common(struct mlx5e_priv *priv,
1161                                         struct mlx5e_sq_param *param)
1162 {
1163         void *sqc = param->sqc;
1164         void *wq = MLX5_ADDR_OF(sqc, sqc, wq);
1165
1166         MLX5_SET(wq, wq, log_wq_stride, ilog2(MLX5_SEND_WQE_BB));
1167         MLX5_SET(wq, wq, pd,            priv->pdn);
1168
1169         param->wq.buf_numa_node = dev_to_node(&priv->mdev->pdev->dev);
1170 }
1171
1172 static void mlx5e_build_sq_param(struct mlx5e_priv *priv,
1173                                  struct mlx5e_sq_param *param)
1174 {
1175         void *sqc = param->sqc;
1176         void *wq = MLX5_ADDR_OF(sqc, sqc, wq);
1177
1178         mlx5e_build_sq_param_common(priv, param);
1179         MLX5_SET(wq, wq, log_wq_sz,     priv->params.log_sq_size);
1180
1181         param->max_inline = priv->params.tx_max_inline;
1182 }
1183
1184 static void mlx5e_build_common_cq_param(struct mlx5e_priv *priv,
1185                                         struct mlx5e_cq_param *param)
1186 {
1187         void *cqc = param->cqc;
1188
1189         MLX5_SET(cqc, cqc, uar_page, priv->cq_uar.index);
1190 }
1191
1192 static void mlx5e_build_rx_cq_param(struct mlx5e_priv *priv,
1193                                     struct mlx5e_cq_param *param)
1194 {
1195         void *cqc = param->cqc;
1196         u8 log_cq_size;
1197
1198         switch (priv->params.rq_wq_type) {
1199         case MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ:
1200                 log_cq_size = priv->params.log_rq_size +
1201                         MLX5_MPWRQ_LOG_NUM_STRIDES;
1202                 break;
1203         default: /* MLX5_WQ_TYPE_LINKED_LIST */
1204                 log_cq_size = priv->params.log_rq_size;
1205         }
1206
1207         MLX5_SET(cqc, cqc, log_cq_size, log_cq_size);
1208
1209         mlx5e_build_common_cq_param(priv, param);
1210 }
1211
1212 static void mlx5e_build_tx_cq_param(struct mlx5e_priv *priv,
1213                                     struct mlx5e_cq_param *param)
1214 {
1215         void *cqc = param->cqc;
1216
1217         MLX5_SET(cqc, cqc, log_cq_size, priv->params.log_sq_size);
1218
1219         mlx5e_build_common_cq_param(priv, param);
1220 }
1221
1222 static void mlx5e_build_ico_cq_param(struct mlx5e_priv *priv,
1223                                      struct mlx5e_cq_param *param,
1224                                      u8 log_wq_size)
1225 {
1226         void *cqc = param->cqc;
1227
1228         MLX5_SET(cqc, cqc, log_cq_size, log_wq_size);
1229
1230         mlx5e_build_common_cq_param(priv, param);
1231 }
1232
1233 static void mlx5e_build_icosq_param(struct mlx5e_priv *priv,
1234                                     struct mlx5e_sq_param *param,
1235                                     u8 log_wq_size)
1236 {
1237         void *sqc = param->sqc;
1238         void *wq = MLX5_ADDR_OF(sqc, sqc, wq);
1239
1240         mlx5e_build_sq_param_common(priv, param);
1241
1242         MLX5_SET(wq, wq, log_wq_sz, log_wq_size);
1243         MLX5_SET(sqc, sqc, reg_umr, MLX5_CAP_ETH(priv->mdev, reg_umr_sq));
1244
1245         param->icosq = true;
1246 }
1247
1248 static void mlx5e_build_channel_param(struct mlx5e_priv *priv,
1249                                       struct mlx5e_channel_param *cparam)
1250 {
1251         u8 icosq_log_wq_sz = MLX5E_PARAMS_MINIMUM_LOG_SQ_SIZE;
1252
1253         memset(cparam, 0, sizeof(*cparam));
1254
1255         mlx5e_build_rq_param(priv, &cparam->rq);
1256         mlx5e_build_sq_param(priv, &cparam->sq);
1257         mlx5e_build_icosq_param(priv, &cparam->icosq, icosq_log_wq_sz);
1258         mlx5e_build_rx_cq_param(priv, &cparam->rx_cq);
1259         mlx5e_build_tx_cq_param(priv, &cparam->tx_cq);
1260         mlx5e_build_ico_cq_param(priv, &cparam->icosq_cq, icosq_log_wq_sz);
1261 }
1262
1263 static int mlx5e_open_channels(struct mlx5e_priv *priv)
1264 {
1265         struct mlx5e_channel_param cparam;
1266         int nch = priv->params.num_channels;
1267         int err = -ENOMEM;
1268         int i;
1269         int j;
1270
1271         priv->channel = kcalloc(nch, sizeof(struct mlx5e_channel *),
1272                                 GFP_KERNEL);
1273
1274         priv->txq_to_sq_map = kcalloc(nch * priv->params.num_tc,
1275                                       sizeof(struct mlx5e_sq *), GFP_KERNEL);
1276
1277         if (!priv->channel || !priv->txq_to_sq_map)
1278                 goto err_free_txq_to_sq_map;
1279
1280         mlx5e_build_channel_param(priv, &cparam);
1281         for (i = 0; i < nch; i++) {
1282                 err = mlx5e_open_channel(priv, i, &cparam, &priv->channel[i]);
1283                 if (err)
1284                         goto err_close_channels;
1285         }
1286
1287         for (j = 0; j < nch; j++) {
1288                 err = mlx5e_wait_for_min_rx_wqes(&priv->channel[j]->rq);
1289                 if (err)
1290                         goto err_close_channels;
1291         }
1292
1293         return 0;
1294
1295 err_close_channels:
1296         for (i--; i >= 0; i--)
1297                 mlx5e_close_channel(priv->channel[i]);
1298
1299 err_free_txq_to_sq_map:
1300         kfree(priv->txq_to_sq_map);
1301         kfree(priv->channel);
1302
1303         return err;
1304 }
1305
1306 static void mlx5e_close_channels(struct mlx5e_priv *priv)
1307 {
1308         int i;
1309
1310         for (i = 0; i < priv->params.num_channels; i++)
1311                 mlx5e_close_channel(priv->channel[i]);
1312
1313         kfree(priv->txq_to_sq_map);
1314         kfree(priv->channel);
1315 }
1316
1317 static int mlx5e_rx_hash_fn(int hfunc)
1318 {
1319         return (hfunc == ETH_RSS_HASH_TOP) ?
1320                MLX5_RX_HASH_FN_TOEPLITZ :
1321                MLX5_RX_HASH_FN_INVERTED_XOR8;
1322 }
1323
1324 static int mlx5e_bits_invert(unsigned long a, int size)
1325 {
1326         int inv = 0;
1327         int i;
1328
1329         for (i = 0; i < size; i++)
1330                 inv |= (test_bit(size - i - 1, &a) ? 1 : 0) << i;
1331
1332         return inv;
1333 }
1334
1335 static void mlx5e_fill_indir_rqt_rqns(struct mlx5e_priv *priv, void *rqtc)
1336 {
1337         int i;
1338
1339         for (i = 0; i < MLX5E_INDIR_RQT_SIZE; i++) {
1340                 int ix = i;
1341
1342                 if (priv->params.rss_hfunc == ETH_RSS_HASH_XOR)
1343                         ix = mlx5e_bits_invert(i, MLX5E_LOG_INDIR_RQT_SIZE);
1344
1345                 ix = priv->params.indirection_rqt[ix];
1346                 MLX5_SET(rqtc, rqtc, rq_num[i],
1347                          test_bit(MLX5E_STATE_OPENED, &priv->state) ?
1348                          priv->channel[ix]->rq.rqn :
1349                          priv->drop_rq.rqn);
1350         }
1351 }
1352
1353 static void mlx5e_fill_rqt_rqns(struct mlx5e_priv *priv, void *rqtc,
1354                                 enum mlx5e_rqt_ix rqt_ix)
1355 {
1356
1357         switch (rqt_ix) {
1358         case MLX5E_INDIRECTION_RQT:
1359                 mlx5e_fill_indir_rqt_rqns(priv, rqtc);
1360
1361                 break;
1362
1363         default: /* MLX5E_SINGLE_RQ_RQT */
1364                 MLX5_SET(rqtc, rqtc, rq_num[0],
1365                          test_bit(MLX5E_STATE_OPENED, &priv->state) ?
1366                          priv->channel[0]->rq.rqn :
1367                          priv->drop_rq.rqn);
1368
1369                 break;
1370         }
1371 }
1372
1373 static int mlx5e_create_rqt(struct mlx5e_priv *priv, enum mlx5e_rqt_ix rqt_ix)
1374 {
1375         struct mlx5_core_dev *mdev = priv->mdev;
1376         u32 *in;
1377         void *rqtc;
1378         int inlen;
1379         int sz;
1380         int err;
1381
1382         sz = (rqt_ix == MLX5E_SINGLE_RQ_RQT) ? 1 : MLX5E_INDIR_RQT_SIZE;
1383
1384         inlen = MLX5_ST_SZ_BYTES(create_rqt_in) + sizeof(u32) * sz;
1385         in = mlx5_vzalloc(inlen);
1386         if (!in)
1387                 return -ENOMEM;
1388
1389         rqtc = MLX5_ADDR_OF(create_rqt_in, in, rqt_context);
1390
1391         MLX5_SET(rqtc, rqtc, rqt_actual_size, sz);
1392         MLX5_SET(rqtc, rqtc, rqt_max_size, sz);
1393
1394         mlx5e_fill_rqt_rqns(priv, rqtc, rqt_ix);
1395
1396         err = mlx5_core_create_rqt(mdev, in, inlen, &priv->rqtn[rqt_ix]);
1397
1398         kvfree(in);
1399
1400         return err;
1401 }
1402
1403 int mlx5e_redirect_rqt(struct mlx5e_priv *priv, enum mlx5e_rqt_ix rqt_ix)
1404 {
1405         struct mlx5_core_dev *mdev = priv->mdev;
1406         u32 *in;
1407         void *rqtc;
1408         int inlen;
1409         int sz;
1410         int err;
1411
1412         sz = (rqt_ix == MLX5E_SINGLE_RQ_RQT) ? 1 : MLX5E_INDIR_RQT_SIZE;
1413
1414         inlen = MLX5_ST_SZ_BYTES(modify_rqt_in) + sizeof(u32) * sz;
1415         in = mlx5_vzalloc(inlen);
1416         if (!in)
1417                 return -ENOMEM;
1418
1419         rqtc = MLX5_ADDR_OF(modify_rqt_in, in, ctx);
1420
1421         MLX5_SET(rqtc, rqtc, rqt_actual_size, sz);
1422
1423         mlx5e_fill_rqt_rqns(priv, rqtc, rqt_ix);
1424
1425         MLX5_SET(modify_rqt_in, in, bitmask.rqn_list, 1);
1426
1427         err = mlx5_core_modify_rqt(mdev, priv->rqtn[rqt_ix], in, inlen);
1428
1429         kvfree(in);
1430
1431         return err;
1432 }
1433
1434 static void mlx5e_destroy_rqt(struct mlx5e_priv *priv, enum mlx5e_rqt_ix rqt_ix)
1435 {
1436         mlx5_core_destroy_rqt(priv->mdev, priv->rqtn[rqt_ix]);
1437 }
1438
1439 static void mlx5e_redirect_rqts(struct mlx5e_priv *priv)
1440 {
1441         mlx5e_redirect_rqt(priv, MLX5E_INDIRECTION_RQT);
1442         mlx5e_redirect_rqt(priv, MLX5E_SINGLE_RQ_RQT);
1443 }
1444
1445 static void mlx5e_build_tir_ctx_lro(void *tirc, struct mlx5e_priv *priv)
1446 {
1447         if (!priv->params.lro_en)
1448                 return;
1449
1450 #define ROUGH_MAX_L2_L3_HDR_SZ 256
1451
1452         MLX5_SET(tirc, tirc, lro_enable_mask,
1453                  MLX5_TIRC_LRO_ENABLE_MASK_IPV4_LRO |
1454                  MLX5_TIRC_LRO_ENABLE_MASK_IPV6_LRO);
1455         MLX5_SET(tirc, tirc, lro_max_ip_payload_size,
1456                  (priv->params.lro_wqe_sz -
1457                   ROUGH_MAX_L2_L3_HDR_SZ) >> 8);
1458         MLX5_SET(tirc, tirc, lro_timeout_period_usecs,
1459                  MLX5_CAP_ETH(priv->mdev,
1460                               lro_timer_supported_periods[2]));
1461 }
1462
1463 void mlx5e_build_tir_ctx_hash(void *tirc, struct mlx5e_priv *priv)
1464 {
1465         MLX5_SET(tirc, tirc, rx_hash_fn,
1466                  mlx5e_rx_hash_fn(priv->params.rss_hfunc));
1467         if (priv->params.rss_hfunc == ETH_RSS_HASH_TOP) {
1468                 void *rss_key = MLX5_ADDR_OF(tirc, tirc,
1469                                              rx_hash_toeplitz_key);
1470                 size_t len = MLX5_FLD_SZ_BYTES(tirc,
1471                                                rx_hash_toeplitz_key);
1472
1473                 MLX5_SET(tirc, tirc, rx_hash_symmetric, 1);
1474                 memcpy(rss_key, priv->params.toeplitz_hash_key, len);
1475         }
1476 }
1477
1478 static int mlx5e_modify_tirs_lro(struct mlx5e_priv *priv)
1479 {
1480         struct mlx5_core_dev *mdev = priv->mdev;
1481
1482         void *in;
1483         void *tirc;
1484         int inlen;
1485         int err;
1486         int tt;
1487
1488         inlen = MLX5_ST_SZ_BYTES(modify_tir_in);
1489         in = mlx5_vzalloc(inlen);
1490         if (!in)
1491                 return -ENOMEM;
1492
1493         MLX5_SET(modify_tir_in, in, bitmask.lro, 1);
1494         tirc = MLX5_ADDR_OF(modify_tir_in, in, ctx);
1495
1496         mlx5e_build_tir_ctx_lro(tirc, priv);
1497
1498         for (tt = 0; tt < MLX5E_NUM_TT; tt++) {
1499                 err = mlx5_core_modify_tir(mdev, priv->tirn[tt], in, inlen);
1500                 if (err)
1501                         break;
1502         }
1503
1504         kvfree(in);
1505
1506         return err;
1507 }
1508
1509 static int mlx5e_refresh_tir_self_loopback_enable(struct mlx5_core_dev *mdev,
1510                                                   u32 tirn)
1511 {
1512         void *in;
1513         int inlen;
1514         int err;
1515
1516         inlen = MLX5_ST_SZ_BYTES(modify_tir_in);
1517         in = mlx5_vzalloc(inlen);
1518         if (!in)
1519                 return -ENOMEM;
1520
1521         MLX5_SET(modify_tir_in, in, bitmask.self_lb_en, 1);
1522
1523         err = mlx5_core_modify_tir(mdev, tirn, in, inlen);
1524
1525         kvfree(in);
1526
1527         return err;
1528 }
1529
1530 static int mlx5e_refresh_tirs_self_loopback_enable(struct mlx5e_priv *priv)
1531 {
1532         int err;
1533         int i;
1534
1535         for (i = 0; i < MLX5E_NUM_TT; i++) {
1536                 err = mlx5e_refresh_tir_self_loopback_enable(priv->mdev,
1537                                                              priv->tirn[i]);
1538                 if (err)
1539                         return err;
1540         }
1541
1542         return 0;
1543 }
1544
1545 static int mlx5e_set_dev_port_mtu(struct net_device *netdev)
1546 {
1547         struct mlx5e_priv *priv = netdev_priv(netdev);
1548         struct mlx5_core_dev *mdev = priv->mdev;
1549         int hw_mtu;
1550         int err;
1551
1552         err = mlx5_set_port_mtu(mdev, MLX5E_SW2HW_MTU(netdev->mtu), 1);
1553         if (err)
1554                 return err;
1555
1556         mlx5_query_port_oper_mtu(mdev, &hw_mtu, 1);
1557
1558         if (MLX5E_HW2SW_MTU(hw_mtu) != netdev->mtu)
1559                 netdev_warn(netdev, "%s: Port MTU %d is different than netdev mtu %d\n",
1560                             __func__, MLX5E_HW2SW_MTU(hw_mtu), netdev->mtu);
1561
1562         netdev->mtu = MLX5E_HW2SW_MTU(hw_mtu);
1563         return 0;
1564 }
1565
1566 static void mlx5e_netdev_set_tcs(struct net_device *netdev)
1567 {
1568         struct mlx5e_priv *priv = netdev_priv(netdev);
1569         int nch = priv->params.num_channels;
1570         int ntc = priv->params.num_tc;
1571         int tc;
1572
1573         netdev_reset_tc(netdev);
1574
1575         if (ntc == 1)
1576                 return;
1577
1578         netdev_set_num_tc(netdev, ntc);
1579
1580         for (tc = 0; tc < ntc; tc++)
1581                 netdev_set_tc_queue(netdev, tc, nch, tc * nch);
1582 }
1583
1584 int mlx5e_open_locked(struct net_device *netdev)
1585 {
1586         struct mlx5e_priv *priv = netdev_priv(netdev);
1587         int num_txqs;
1588         int err;
1589
1590         set_bit(MLX5E_STATE_OPENED, &priv->state);
1591
1592         mlx5e_netdev_set_tcs(netdev);
1593
1594         num_txqs = priv->params.num_channels * priv->params.num_tc;
1595         netif_set_real_num_tx_queues(netdev, num_txqs);
1596         netif_set_real_num_rx_queues(netdev, priv->params.num_channels);
1597
1598         err = mlx5e_set_dev_port_mtu(netdev);
1599         if (err)
1600                 goto err_clear_state_opened_flag;
1601
1602         err = mlx5e_open_channels(priv);
1603         if (err) {
1604                 netdev_err(netdev, "%s: mlx5e_open_channels failed, %d\n",
1605                            __func__, err);
1606                 goto err_clear_state_opened_flag;
1607         }
1608
1609         err = mlx5e_refresh_tirs_self_loopback_enable(priv);
1610         if (err) {
1611                 netdev_err(netdev, "%s: mlx5e_refresh_tirs_self_loopback_enable failed, %d\n",
1612                            __func__, err);
1613                 goto err_close_channels;
1614         }
1615
1616         mlx5e_redirect_rqts(priv);
1617         mlx5e_update_carrier(priv);
1618         mlx5e_timestamp_init(priv);
1619
1620         schedule_delayed_work(&priv->update_stats_work, 0);
1621
1622         return 0;
1623
1624 err_close_channels:
1625         mlx5e_close_channels(priv);
1626 err_clear_state_opened_flag:
1627         clear_bit(MLX5E_STATE_OPENED, &priv->state);
1628         return err;
1629 }
1630
1631 static int mlx5e_open(struct net_device *netdev)
1632 {
1633         struct mlx5e_priv *priv = netdev_priv(netdev);
1634         int err;
1635
1636         mutex_lock(&priv->state_lock);
1637         err = mlx5e_open_locked(netdev);
1638         mutex_unlock(&priv->state_lock);
1639
1640         return err;
1641 }
1642
1643 int mlx5e_close_locked(struct net_device *netdev)
1644 {
1645         struct mlx5e_priv *priv = netdev_priv(netdev);
1646
1647         /* May already be CLOSED in case a previous configuration operation
1648          * (e.g RX/TX queue size change) that involves close&open failed.
1649          */
1650         if (!test_bit(MLX5E_STATE_OPENED, &priv->state))
1651                 return 0;
1652
1653         clear_bit(MLX5E_STATE_OPENED, &priv->state);
1654
1655         mlx5e_timestamp_cleanup(priv);
1656         netif_carrier_off(priv->netdev);
1657         mlx5e_redirect_rqts(priv);
1658         mlx5e_close_channels(priv);
1659
1660         return 0;
1661 }
1662
1663 static int mlx5e_close(struct net_device *netdev)
1664 {
1665         struct mlx5e_priv *priv = netdev_priv(netdev);
1666         int err;
1667
1668         mutex_lock(&priv->state_lock);
1669         err = mlx5e_close_locked(netdev);
1670         mutex_unlock(&priv->state_lock);
1671
1672         return err;
1673 }
1674
1675 static int mlx5e_create_drop_rq(struct mlx5e_priv *priv,
1676                                 struct mlx5e_rq *rq,
1677                                 struct mlx5e_rq_param *param)
1678 {
1679         struct mlx5_core_dev *mdev = priv->mdev;
1680         void *rqc = param->rqc;
1681         void *rqc_wq = MLX5_ADDR_OF(rqc, rqc, wq);
1682         int err;
1683
1684         param->wq.db_numa_node = param->wq.buf_numa_node;
1685
1686         err = mlx5_wq_ll_create(mdev, &param->wq, rqc_wq, &rq->wq,
1687                                 &rq->wq_ctrl);
1688         if (err)
1689                 return err;
1690
1691         rq->priv = priv;
1692
1693         return 0;
1694 }
1695
1696 static int mlx5e_create_drop_cq(struct mlx5e_priv *priv,
1697                                 struct mlx5e_cq *cq,
1698                                 struct mlx5e_cq_param *param)
1699 {
1700         struct mlx5_core_dev *mdev = priv->mdev;
1701         struct mlx5_core_cq *mcq = &cq->mcq;
1702         int eqn_not_used;
1703         unsigned int irqn;
1704         int err;
1705
1706         err = mlx5_cqwq_create(mdev, &param->wq, param->cqc, &cq->wq,
1707                                &cq->wq_ctrl);
1708         if (err)
1709                 return err;
1710
1711         mlx5_vector2eqn(mdev, param->eq_ix, &eqn_not_used, &irqn);
1712
1713         mcq->cqe_sz     = 64;
1714         mcq->set_ci_db  = cq->wq_ctrl.db.db;
1715         mcq->arm_db     = cq->wq_ctrl.db.db + 1;
1716         *mcq->set_ci_db = 0;
1717         *mcq->arm_db    = 0;
1718         mcq->vector     = param->eq_ix;
1719         mcq->comp       = mlx5e_completion_event;
1720         mcq->event      = mlx5e_cq_error_event;
1721         mcq->irqn       = irqn;
1722         mcq->uar        = &priv->cq_uar;
1723
1724         cq->priv = priv;
1725
1726         return 0;
1727 }
1728
1729 static int mlx5e_open_drop_rq(struct mlx5e_priv *priv)
1730 {
1731         struct mlx5e_cq_param cq_param;
1732         struct mlx5e_rq_param rq_param;
1733         struct mlx5e_rq *rq = &priv->drop_rq;
1734         struct mlx5e_cq *cq = &priv->drop_rq.cq;
1735         int err;
1736
1737         memset(&cq_param, 0, sizeof(cq_param));
1738         memset(&rq_param, 0, sizeof(rq_param));
1739         mlx5e_build_drop_rq_param(&rq_param);
1740
1741         err = mlx5e_create_drop_cq(priv, cq, &cq_param);
1742         if (err)
1743                 return err;
1744
1745         err = mlx5e_enable_cq(cq, &cq_param);
1746         if (err)
1747                 goto err_destroy_cq;
1748
1749         err = mlx5e_create_drop_rq(priv, rq, &rq_param);
1750         if (err)
1751                 goto err_disable_cq;
1752
1753         err = mlx5e_enable_rq(rq, &rq_param);
1754         if (err)
1755                 goto err_destroy_rq;
1756
1757         return 0;
1758
1759 err_destroy_rq:
1760         mlx5e_destroy_rq(&priv->drop_rq);
1761
1762 err_disable_cq:
1763         mlx5e_disable_cq(&priv->drop_rq.cq);
1764
1765 err_destroy_cq:
1766         mlx5e_destroy_cq(&priv->drop_rq.cq);
1767
1768         return err;
1769 }
1770
1771 static void mlx5e_close_drop_rq(struct mlx5e_priv *priv)
1772 {
1773         mlx5e_disable_rq(&priv->drop_rq);
1774         mlx5e_destroy_rq(&priv->drop_rq);
1775         mlx5e_disable_cq(&priv->drop_rq.cq);
1776         mlx5e_destroy_cq(&priv->drop_rq.cq);
1777 }
1778
1779 static int mlx5e_create_tis(struct mlx5e_priv *priv, int tc)
1780 {
1781         struct mlx5_core_dev *mdev = priv->mdev;
1782         u32 in[MLX5_ST_SZ_DW(create_tis_in)];
1783         void *tisc = MLX5_ADDR_OF(create_tis_in, in, ctx);
1784
1785         memset(in, 0, sizeof(in));
1786
1787         MLX5_SET(tisc, tisc, prio, tc << 1);
1788         MLX5_SET(tisc, tisc, transport_domain, priv->tdn);
1789
1790         return mlx5_core_create_tis(mdev, in, sizeof(in), &priv->tisn[tc]);
1791 }
1792
1793 static void mlx5e_destroy_tis(struct mlx5e_priv *priv, int tc)
1794 {
1795         mlx5_core_destroy_tis(priv->mdev, priv->tisn[tc]);
1796 }
1797
1798 static int mlx5e_create_tises(struct mlx5e_priv *priv)
1799 {
1800         int err;
1801         int tc;
1802
1803         for (tc = 0; tc < MLX5E_MAX_NUM_TC; tc++) {
1804                 err = mlx5e_create_tis(priv, tc);
1805                 if (err)
1806                         goto err_close_tises;
1807         }
1808
1809         return 0;
1810
1811 err_close_tises:
1812         for (tc--; tc >= 0; tc--)
1813                 mlx5e_destroy_tis(priv, tc);
1814
1815         return err;
1816 }
1817
1818 static void mlx5e_destroy_tises(struct mlx5e_priv *priv)
1819 {
1820         int tc;
1821
1822         for (tc = 0; tc < MLX5E_MAX_NUM_TC; tc++)
1823                 mlx5e_destroy_tis(priv, tc);
1824 }
1825
1826 static void mlx5e_build_tir_ctx(struct mlx5e_priv *priv, u32 *tirc, int tt)
1827 {
1828         void *hfso = MLX5_ADDR_OF(tirc, tirc, rx_hash_field_selector_outer);
1829
1830         MLX5_SET(tirc, tirc, transport_domain, priv->tdn);
1831
1832 #define MLX5_HASH_IP            (MLX5_HASH_FIELD_SEL_SRC_IP   |\
1833                                  MLX5_HASH_FIELD_SEL_DST_IP)
1834
1835 #define MLX5_HASH_IP_L4PORTS    (MLX5_HASH_FIELD_SEL_SRC_IP   |\
1836                                  MLX5_HASH_FIELD_SEL_DST_IP   |\
1837                                  MLX5_HASH_FIELD_SEL_L4_SPORT |\
1838                                  MLX5_HASH_FIELD_SEL_L4_DPORT)
1839
1840 #define MLX5_HASH_IP_IPSEC_SPI  (MLX5_HASH_FIELD_SEL_SRC_IP   |\
1841                                  MLX5_HASH_FIELD_SEL_DST_IP   |\
1842                                  MLX5_HASH_FIELD_SEL_IPSEC_SPI)
1843
1844         mlx5e_build_tir_ctx_lro(tirc, priv);
1845
1846         MLX5_SET(tirc, tirc, disp_type, MLX5_TIRC_DISP_TYPE_INDIRECT);
1847
1848         switch (tt) {
1849         case MLX5E_TT_ANY:
1850                 MLX5_SET(tirc, tirc, indirect_table,
1851                          priv->rqtn[MLX5E_SINGLE_RQ_RQT]);
1852                 MLX5_SET(tirc, tirc, rx_hash_fn, MLX5_RX_HASH_FN_INVERTED_XOR8);
1853                 break;
1854         default:
1855                 MLX5_SET(tirc, tirc, indirect_table,
1856                          priv->rqtn[MLX5E_INDIRECTION_RQT]);
1857                 mlx5e_build_tir_ctx_hash(tirc, priv);
1858                 break;
1859         }
1860
1861         switch (tt) {
1862         case MLX5E_TT_IPV4_TCP:
1863                 MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
1864                          MLX5_L3_PROT_TYPE_IPV4);
1865                 MLX5_SET(rx_hash_field_select, hfso, l4_prot_type,
1866                          MLX5_L4_PROT_TYPE_TCP);
1867                 MLX5_SET(rx_hash_field_select, hfso, selected_fields,
1868                          MLX5_HASH_IP_L4PORTS);
1869                 break;
1870
1871         case MLX5E_TT_IPV6_TCP:
1872                 MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
1873                          MLX5_L3_PROT_TYPE_IPV6);
1874                 MLX5_SET(rx_hash_field_select, hfso, l4_prot_type,
1875                          MLX5_L4_PROT_TYPE_TCP);
1876                 MLX5_SET(rx_hash_field_select, hfso, selected_fields,
1877                          MLX5_HASH_IP_L4PORTS);
1878                 break;
1879
1880         case MLX5E_TT_IPV4_UDP:
1881                 MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
1882                          MLX5_L3_PROT_TYPE_IPV4);
1883                 MLX5_SET(rx_hash_field_select, hfso, l4_prot_type,
1884                          MLX5_L4_PROT_TYPE_UDP);
1885                 MLX5_SET(rx_hash_field_select, hfso, selected_fields,
1886                          MLX5_HASH_IP_L4PORTS);
1887                 break;
1888
1889         case MLX5E_TT_IPV6_UDP:
1890                 MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
1891                          MLX5_L3_PROT_TYPE_IPV6);
1892                 MLX5_SET(rx_hash_field_select, hfso, l4_prot_type,
1893                          MLX5_L4_PROT_TYPE_UDP);
1894                 MLX5_SET(rx_hash_field_select, hfso, selected_fields,
1895                          MLX5_HASH_IP_L4PORTS);
1896                 break;
1897
1898         case MLX5E_TT_IPV4_IPSEC_AH:
1899                 MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
1900                          MLX5_L3_PROT_TYPE_IPV4);
1901                 MLX5_SET(rx_hash_field_select, hfso, selected_fields,
1902                          MLX5_HASH_IP_IPSEC_SPI);
1903                 break;
1904
1905         case MLX5E_TT_IPV6_IPSEC_AH:
1906                 MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
1907                          MLX5_L3_PROT_TYPE_IPV6);
1908                 MLX5_SET(rx_hash_field_select, hfso, selected_fields,
1909                          MLX5_HASH_IP_IPSEC_SPI);
1910                 break;
1911
1912         case MLX5E_TT_IPV4_IPSEC_ESP:
1913                 MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
1914                          MLX5_L3_PROT_TYPE_IPV4);
1915                 MLX5_SET(rx_hash_field_select, hfso, selected_fields,
1916                          MLX5_HASH_IP_IPSEC_SPI);
1917                 break;
1918
1919         case MLX5E_TT_IPV6_IPSEC_ESP:
1920                 MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
1921                          MLX5_L3_PROT_TYPE_IPV6);
1922                 MLX5_SET(rx_hash_field_select, hfso, selected_fields,
1923                          MLX5_HASH_IP_IPSEC_SPI);
1924                 break;
1925
1926         case MLX5E_TT_IPV4:
1927                 MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
1928                          MLX5_L3_PROT_TYPE_IPV4);
1929                 MLX5_SET(rx_hash_field_select, hfso, selected_fields,
1930                          MLX5_HASH_IP);
1931                 break;
1932
1933         case MLX5E_TT_IPV6:
1934                 MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
1935                          MLX5_L3_PROT_TYPE_IPV6);
1936                 MLX5_SET(rx_hash_field_select, hfso, selected_fields,
1937                          MLX5_HASH_IP);
1938                 break;
1939         }
1940 }
1941
1942 static int mlx5e_create_tir(struct mlx5e_priv *priv, int tt)
1943 {
1944         struct mlx5_core_dev *mdev = priv->mdev;
1945         u32 *in;
1946         void *tirc;
1947         int inlen;
1948         int err;
1949
1950         inlen = MLX5_ST_SZ_BYTES(create_tir_in);
1951         in = mlx5_vzalloc(inlen);
1952         if (!in)
1953                 return -ENOMEM;
1954
1955         tirc = MLX5_ADDR_OF(create_tir_in, in, ctx);
1956
1957         mlx5e_build_tir_ctx(priv, tirc, tt);
1958
1959         err = mlx5_core_create_tir(mdev, in, inlen, &priv->tirn[tt]);
1960
1961         kvfree(in);
1962
1963         return err;
1964 }
1965
1966 static void mlx5e_destroy_tir(struct mlx5e_priv *priv, int tt)
1967 {
1968         mlx5_core_destroy_tir(priv->mdev, priv->tirn[tt]);
1969 }
1970
1971 static int mlx5e_create_tirs(struct mlx5e_priv *priv)
1972 {
1973         int err;
1974         int i;
1975
1976         for (i = 0; i < MLX5E_NUM_TT; i++) {
1977                 err = mlx5e_create_tir(priv, i);
1978                 if (err)
1979                         goto err_destroy_tirs;
1980         }
1981
1982         return 0;
1983
1984 err_destroy_tirs:
1985         for (i--; i >= 0; i--)
1986                 mlx5e_destroy_tir(priv, i);
1987
1988         return err;
1989 }
1990
1991 static void mlx5e_destroy_tirs(struct mlx5e_priv *priv)
1992 {
1993         int i;
1994
1995         for (i = 0; i < MLX5E_NUM_TT; i++)
1996                 mlx5e_destroy_tir(priv, i);
1997 }
1998
1999 int mlx5e_modify_rqs_vsd(struct mlx5e_priv *priv, bool vsd)
2000 {
2001         int err = 0;
2002         int i;
2003
2004         if (!test_bit(MLX5E_STATE_OPENED, &priv->state))
2005                 return 0;
2006
2007         for (i = 0; i < priv->params.num_channels; i++) {
2008                 err = mlx5e_modify_rq_vsd(&priv->channel[i]->rq, vsd);
2009                 if (err)
2010                         return err;
2011         }
2012
2013         return 0;
2014 }
2015
2016 static int mlx5e_setup_tc(struct net_device *netdev, u8 tc)
2017 {
2018         struct mlx5e_priv *priv = netdev_priv(netdev);
2019         bool was_opened;
2020         int err = 0;
2021
2022         if (tc && tc != MLX5E_MAX_NUM_TC)
2023                 return -EINVAL;
2024
2025         mutex_lock(&priv->state_lock);
2026
2027         was_opened = test_bit(MLX5E_STATE_OPENED, &priv->state);
2028         if (was_opened)
2029                 mlx5e_close_locked(priv->netdev);
2030
2031         priv->params.num_tc = tc ? tc : 1;
2032
2033         if (was_opened)
2034                 err = mlx5e_open_locked(priv->netdev);
2035
2036         mutex_unlock(&priv->state_lock);
2037
2038         return err;
2039 }
2040
2041 static int mlx5e_ndo_setup_tc(struct net_device *dev, u32 handle,
2042                               __be16 proto, struct tc_to_netdev *tc)
2043 {
2044         struct mlx5e_priv *priv = netdev_priv(dev);
2045
2046         if (TC_H_MAJ(handle) != TC_H_MAJ(TC_H_INGRESS))
2047                 goto mqprio;
2048
2049         switch (tc->type) {
2050         case TC_SETUP_CLSFLOWER:
2051                 switch (tc->cls_flower->command) {
2052                 case TC_CLSFLOWER_REPLACE:
2053                         return mlx5e_configure_flower(priv, proto, tc->cls_flower);
2054                 case TC_CLSFLOWER_DESTROY:
2055                         return mlx5e_delete_flower(priv, tc->cls_flower);
2056                 }
2057         default:
2058                 return -EOPNOTSUPP;
2059         }
2060
2061 mqprio:
2062         if (tc->type != TC_SETUP_MQPRIO)
2063                 return -EINVAL;
2064
2065         return mlx5e_setup_tc(dev, tc->tc);
2066 }
2067
2068 static struct rtnl_link_stats64 *
2069 mlx5e_get_stats(struct net_device *dev, struct rtnl_link_stats64 *stats)
2070 {
2071         struct mlx5e_priv *priv = netdev_priv(dev);
2072         struct mlx5e_sw_stats *sstats = &priv->stats.sw;
2073         struct mlx5e_vport_stats *vstats = &priv->stats.vport;
2074         struct mlx5e_pport_stats *pstats = &priv->stats.pport;
2075
2076         stats->rx_packets = sstats->rx_packets;
2077         stats->rx_bytes   = sstats->rx_bytes;
2078         stats->tx_packets = sstats->tx_packets;
2079         stats->tx_bytes   = sstats->tx_bytes;
2080
2081         stats->rx_dropped = priv->stats.qcnt.rx_out_of_buffer;
2082         stats->tx_dropped = sstats->tx_queue_dropped;
2083
2084         stats->rx_length_errors =
2085                 PPORT_802_3_GET(pstats, a_in_range_length_errors) +
2086                 PPORT_802_3_GET(pstats, a_out_of_range_length_field) +
2087                 PPORT_802_3_GET(pstats, a_frame_too_long_errors);
2088         stats->rx_crc_errors =
2089                 PPORT_802_3_GET(pstats, a_frame_check_sequence_errors);
2090         stats->rx_frame_errors = PPORT_802_3_GET(pstats, a_alignment_errors);
2091         stats->tx_aborted_errors = PPORT_2863_GET(pstats, if_out_discards);
2092         stats->tx_carrier_errors =
2093                 PPORT_802_3_GET(pstats, a_symbol_error_during_carrier);
2094         stats->rx_errors = stats->rx_length_errors + stats->rx_crc_errors +
2095                            stats->rx_frame_errors;
2096         stats->tx_errors = stats->tx_aborted_errors + stats->tx_carrier_errors;
2097
2098         /* vport multicast also counts packets that are dropped due to steering
2099          * or rx out of buffer
2100          */
2101         stats->multicast =
2102                 VPORT_COUNTER_GET(vstats, received_eth_multicast.packets);
2103
2104         return stats;
2105 }
2106
2107 static void mlx5e_set_rx_mode(struct net_device *dev)
2108 {
2109         struct mlx5e_priv *priv = netdev_priv(dev);
2110
2111         schedule_work(&priv->set_rx_mode_work);
2112 }
2113
2114 static int mlx5e_set_mac(struct net_device *netdev, void *addr)
2115 {
2116         struct mlx5e_priv *priv = netdev_priv(netdev);
2117         struct sockaddr *saddr = addr;
2118
2119         if (!is_valid_ether_addr(saddr->sa_data))
2120                 return -EADDRNOTAVAIL;
2121
2122         netif_addr_lock_bh(netdev);
2123         ether_addr_copy(netdev->dev_addr, saddr->sa_data);
2124         netif_addr_unlock_bh(netdev);
2125
2126         schedule_work(&priv->set_rx_mode_work);
2127
2128         return 0;
2129 }
2130
2131 #define MLX5E_SET_FEATURE(netdev, feature, enable)      \
2132         do {                                            \
2133                 if (enable)                             \
2134                         netdev->features |= feature;    \
2135                 else                                    \
2136                         netdev->features &= ~feature;   \
2137         } while (0)
2138
2139 typedef int (*mlx5e_feature_handler)(struct net_device *netdev, bool enable);
2140
2141 static int set_feature_lro(struct net_device *netdev, bool enable)
2142 {
2143         struct mlx5e_priv *priv = netdev_priv(netdev);
2144         bool was_opened = test_bit(MLX5E_STATE_OPENED, &priv->state);
2145         int err;
2146
2147         mutex_lock(&priv->state_lock);
2148
2149         if (was_opened && (priv->params.rq_wq_type == MLX5_WQ_TYPE_LINKED_LIST))
2150                 mlx5e_close_locked(priv->netdev);
2151
2152         priv->params.lro_en = enable;
2153         err = mlx5e_modify_tirs_lro(priv);
2154         if (err) {
2155                 netdev_err(netdev, "lro modify failed, %d\n", err);
2156                 priv->params.lro_en = !enable;
2157         }
2158
2159         if (was_opened && (priv->params.rq_wq_type == MLX5_WQ_TYPE_LINKED_LIST))
2160                 mlx5e_open_locked(priv->netdev);
2161
2162         mutex_unlock(&priv->state_lock);
2163
2164         return err;
2165 }
2166
2167 static int set_feature_vlan_filter(struct net_device *netdev, bool enable)
2168 {
2169         struct mlx5e_priv *priv = netdev_priv(netdev);
2170
2171         if (enable)
2172                 mlx5e_enable_vlan_filter(priv);
2173         else
2174                 mlx5e_disable_vlan_filter(priv);
2175
2176         return 0;
2177 }
2178
2179 static int set_feature_tc_num_filters(struct net_device *netdev, bool enable)
2180 {
2181         struct mlx5e_priv *priv = netdev_priv(netdev);
2182
2183         if (!enable && mlx5e_tc_num_filters(priv)) {
2184                 netdev_err(netdev,
2185                            "Active offloaded tc filters, can't turn hw_tc_offload off\n");
2186                 return -EINVAL;
2187         }
2188
2189         return 0;
2190 }
2191
2192 static int set_feature_rx_all(struct net_device *netdev, bool enable)
2193 {
2194         struct mlx5e_priv *priv = netdev_priv(netdev);
2195         struct mlx5_core_dev *mdev = priv->mdev;
2196
2197         return mlx5_set_port_fcs(mdev, !enable);
2198 }
2199
2200 static int set_feature_rx_vlan(struct net_device *netdev, bool enable)
2201 {
2202         struct mlx5e_priv *priv = netdev_priv(netdev);
2203         int err;
2204
2205         mutex_lock(&priv->state_lock);
2206
2207         priv->params.vlan_strip_disable = !enable;
2208         err = mlx5e_modify_rqs_vsd(priv, !enable);
2209         if (err)
2210                 priv->params.vlan_strip_disable = enable;
2211
2212         mutex_unlock(&priv->state_lock);
2213
2214         return err;
2215 }
2216
2217 static int mlx5e_handle_feature(struct net_device *netdev,
2218                                 netdev_features_t wanted_features,
2219                                 netdev_features_t feature,
2220                                 mlx5e_feature_handler feature_handler)
2221 {
2222         netdev_features_t changes = wanted_features ^ netdev->features;
2223         bool enable = !!(wanted_features & feature);
2224         int err;
2225
2226         if (!(changes & feature))
2227                 return 0;
2228
2229         err = feature_handler(netdev, enable);
2230         if (err) {
2231                 netdev_err(netdev, "%s feature 0x%llx failed err %d\n",
2232                            enable ? "Enable" : "Disable", feature, err);
2233                 return err;
2234         }
2235
2236         MLX5E_SET_FEATURE(netdev, feature, enable);
2237         return 0;
2238 }
2239
2240 static int mlx5e_set_features(struct net_device *netdev,
2241                               netdev_features_t features)
2242 {
2243         int err;
2244
2245         err  = mlx5e_handle_feature(netdev, features, NETIF_F_LRO,
2246                                     set_feature_lro);
2247         err |= mlx5e_handle_feature(netdev, features,
2248                                     NETIF_F_HW_VLAN_CTAG_FILTER,
2249                                     set_feature_vlan_filter);
2250         err |= mlx5e_handle_feature(netdev, features, NETIF_F_HW_TC,
2251                                     set_feature_tc_num_filters);
2252         err |= mlx5e_handle_feature(netdev, features, NETIF_F_RXALL,
2253                                     set_feature_rx_all);
2254         err |= mlx5e_handle_feature(netdev, features, NETIF_F_HW_VLAN_CTAG_RX,
2255                                     set_feature_rx_vlan);
2256
2257         return err ? -EINVAL : 0;
2258 }
2259
2260 static int mlx5e_change_mtu(struct net_device *netdev, int new_mtu)
2261 {
2262         struct mlx5e_priv *priv = netdev_priv(netdev);
2263         struct mlx5_core_dev *mdev = priv->mdev;
2264         bool was_opened;
2265         int max_mtu;
2266         int err = 0;
2267
2268         mlx5_query_port_max_mtu(mdev, &max_mtu, 1);
2269
2270         max_mtu = MLX5E_HW2SW_MTU(max_mtu);
2271
2272         if (new_mtu > max_mtu) {
2273                 netdev_err(netdev,
2274                            "%s: Bad MTU (%d) > (%d) Max\n",
2275                            __func__, new_mtu, max_mtu);
2276                 return -EINVAL;
2277         }
2278
2279         mutex_lock(&priv->state_lock);
2280
2281         was_opened = test_bit(MLX5E_STATE_OPENED, &priv->state);
2282         if (was_opened)
2283                 mlx5e_close_locked(netdev);
2284
2285         netdev->mtu = new_mtu;
2286
2287         if (was_opened)
2288                 err = mlx5e_open_locked(netdev);
2289
2290         mutex_unlock(&priv->state_lock);
2291
2292         return err;
2293 }
2294
2295 static int mlx5e_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
2296 {
2297         switch (cmd) {
2298         case SIOCSHWTSTAMP:
2299                 return mlx5e_hwstamp_set(dev, ifr);
2300         case SIOCGHWTSTAMP:
2301                 return mlx5e_hwstamp_get(dev, ifr);
2302         default:
2303                 return -EOPNOTSUPP;
2304         }
2305 }
2306
2307 static int mlx5e_set_vf_mac(struct net_device *dev, int vf, u8 *mac)
2308 {
2309         struct mlx5e_priv *priv = netdev_priv(dev);
2310         struct mlx5_core_dev *mdev = priv->mdev;
2311
2312         return mlx5_eswitch_set_vport_mac(mdev->priv.eswitch, vf + 1, mac);
2313 }
2314
2315 static int mlx5e_set_vf_vlan(struct net_device *dev, int vf, u16 vlan, u8 qos)
2316 {
2317         struct mlx5e_priv *priv = netdev_priv(dev);
2318         struct mlx5_core_dev *mdev = priv->mdev;
2319
2320         return mlx5_eswitch_set_vport_vlan(mdev->priv.eswitch, vf + 1,
2321                                            vlan, qos);
2322 }
2323
2324 static int mlx5_vport_link2ifla(u8 esw_link)
2325 {
2326         switch (esw_link) {
2327         case MLX5_ESW_VPORT_ADMIN_STATE_DOWN:
2328                 return IFLA_VF_LINK_STATE_DISABLE;
2329         case MLX5_ESW_VPORT_ADMIN_STATE_UP:
2330                 return IFLA_VF_LINK_STATE_ENABLE;
2331         }
2332         return IFLA_VF_LINK_STATE_AUTO;
2333 }
2334
2335 static int mlx5_ifla_link2vport(u8 ifla_link)
2336 {
2337         switch (ifla_link) {
2338         case IFLA_VF_LINK_STATE_DISABLE:
2339                 return MLX5_ESW_VPORT_ADMIN_STATE_DOWN;
2340         case IFLA_VF_LINK_STATE_ENABLE:
2341                 return MLX5_ESW_VPORT_ADMIN_STATE_UP;
2342         }
2343         return MLX5_ESW_VPORT_ADMIN_STATE_AUTO;
2344 }
2345
2346 static int mlx5e_set_vf_link_state(struct net_device *dev, int vf,
2347                                    int link_state)
2348 {
2349         struct mlx5e_priv *priv = netdev_priv(dev);
2350         struct mlx5_core_dev *mdev = priv->mdev;
2351
2352         return mlx5_eswitch_set_vport_state(mdev->priv.eswitch, vf + 1,
2353                                             mlx5_ifla_link2vport(link_state));
2354 }
2355
2356 static int mlx5e_get_vf_config(struct net_device *dev,
2357                                int vf, struct ifla_vf_info *ivi)
2358 {
2359         struct mlx5e_priv *priv = netdev_priv(dev);
2360         struct mlx5_core_dev *mdev = priv->mdev;
2361         int err;
2362
2363         err = mlx5_eswitch_get_vport_config(mdev->priv.eswitch, vf + 1, ivi);
2364         if (err)
2365                 return err;
2366         ivi->linkstate = mlx5_vport_link2ifla(ivi->linkstate);
2367         return 0;
2368 }
2369
2370 static int mlx5e_get_vf_stats(struct net_device *dev,
2371                               int vf, struct ifla_vf_stats *vf_stats)
2372 {
2373         struct mlx5e_priv *priv = netdev_priv(dev);
2374         struct mlx5_core_dev *mdev = priv->mdev;
2375
2376         return mlx5_eswitch_get_vport_stats(mdev->priv.eswitch, vf + 1,
2377                                             vf_stats);
2378 }
2379
2380 static void mlx5e_add_vxlan_port(struct net_device *netdev,
2381                                  sa_family_t sa_family, __be16 port)
2382 {
2383         struct mlx5e_priv *priv = netdev_priv(netdev);
2384
2385         if (!mlx5e_vxlan_allowed(priv->mdev))
2386                 return;
2387
2388         mlx5e_vxlan_add_port(priv, be16_to_cpu(port));
2389 }
2390
2391 static void mlx5e_del_vxlan_port(struct net_device *netdev,
2392                                  sa_family_t sa_family, __be16 port)
2393 {
2394         struct mlx5e_priv *priv = netdev_priv(netdev);
2395
2396         if (!mlx5e_vxlan_allowed(priv->mdev))
2397                 return;
2398
2399         mlx5e_vxlan_del_port(priv, be16_to_cpu(port));
2400 }
2401
2402 static netdev_features_t mlx5e_vxlan_features_check(struct mlx5e_priv *priv,
2403                                                     struct sk_buff *skb,
2404                                                     netdev_features_t features)
2405 {
2406         struct udphdr *udph;
2407         u16 proto;
2408         u16 port = 0;
2409
2410         switch (vlan_get_protocol(skb)) {
2411         case htons(ETH_P_IP):
2412                 proto = ip_hdr(skb)->protocol;
2413                 break;
2414         case htons(ETH_P_IPV6):
2415                 proto = ipv6_hdr(skb)->nexthdr;
2416                 break;
2417         default:
2418                 goto out;
2419         }
2420
2421         if (proto == IPPROTO_UDP) {
2422                 udph = udp_hdr(skb);
2423                 port = be16_to_cpu(udph->dest);
2424         }
2425
2426         /* Verify if UDP port is being offloaded by HW */
2427         if (port && mlx5e_vxlan_lookup_port(priv, port))
2428                 return features;
2429
2430 out:
2431         /* Disable CSUM and GSO if the udp dport is not offloaded by HW */
2432         return features & ~(NETIF_F_CSUM_MASK | NETIF_F_GSO_MASK);
2433 }
2434
2435 static netdev_features_t mlx5e_features_check(struct sk_buff *skb,
2436                                               struct net_device *netdev,
2437                                               netdev_features_t features)
2438 {
2439         struct mlx5e_priv *priv = netdev_priv(netdev);
2440
2441         features = vlan_features_check(skb, features);
2442         features = vxlan_features_check(skb, features);
2443
2444         /* Validate if the tunneled packet is being offloaded by HW */
2445         if (skb->encapsulation &&
2446             (features & NETIF_F_CSUM_MASK || features & NETIF_F_GSO_MASK))
2447                 return mlx5e_vxlan_features_check(priv, skb, features);
2448
2449         return features;
2450 }
2451
2452 static const struct net_device_ops mlx5e_netdev_ops_basic = {
2453         .ndo_open                = mlx5e_open,
2454         .ndo_stop                = mlx5e_close,
2455         .ndo_start_xmit          = mlx5e_xmit,
2456         .ndo_setup_tc            = mlx5e_ndo_setup_tc,
2457         .ndo_select_queue        = mlx5e_select_queue,
2458         .ndo_get_stats64         = mlx5e_get_stats,
2459         .ndo_set_rx_mode         = mlx5e_set_rx_mode,
2460         .ndo_set_mac_address     = mlx5e_set_mac,
2461         .ndo_vlan_rx_add_vid     = mlx5e_vlan_rx_add_vid,
2462         .ndo_vlan_rx_kill_vid    = mlx5e_vlan_rx_kill_vid,
2463         .ndo_set_features        = mlx5e_set_features,
2464         .ndo_change_mtu          = mlx5e_change_mtu,
2465         .ndo_do_ioctl            = mlx5e_ioctl,
2466 };
2467
2468 static const struct net_device_ops mlx5e_netdev_ops_sriov = {
2469         .ndo_open                = mlx5e_open,
2470         .ndo_stop                = mlx5e_close,
2471         .ndo_start_xmit          = mlx5e_xmit,
2472         .ndo_setup_tc            = mlx5e_ndo_setup_tc,
2473         .ndo_select_queue        = mlx5e_select_queue,
2474         .ndo_get_stats64         = mlx5e_get_stats,
2475         .ndo_set_rx_mode         = mlx5e_set_rx_mode,
2476         .ndo_set_mac_address     = mlx5e_set_mac,
2477         .ndo_vlan_rx_add_vid     = mlx5e_vlan_rx_add_vid,
2478         .ndo_vlan_rx_kill_vid    = mlx5e_vlan_rx_kill_vid,
2479         .ndo_set_features        = mlx5e_set_features,
2480         .ndo_change_mtu          = mlx5e_change_mtu,
2481         .ndo_do_ioctl            = mlx5e_ioctl,
2482         .ndo_add_vxlan_port      = mlx5e_add_vxlan_port,
2483         .ndo_del_vxlan_port      = mlx5e_del_vxlan_port,
2484         .ndo_features_check      = mlx5e_features_check,
2485         .ndo_set_vf_mac          = mlx5e_set_vf_mac,
2486         .ndo_set_vf_vlan         = mlx5e_set_vf_vlan,
2487         .ndo_get_vf_config       = mlx5e_get_vf_config,
2488         .ndo_set_vf_link_state   = mlx5e_set_vf_link_state,
2489         .ndo_get_vf_stats        = mlx5e_get_vf_stats,
2490 };
2491
2492 static int mlx5e_check_required_hca_cap(struct mlx5_core_dev *mdev)
2493 {
2494         if (MLX5_CAP_GEN(mdev, port_type) != MLX5_CAP_PORT_TYPE_ETH)
2495                 return -ENOTSUPP;
2496         if (!MLX5_CAP_GEN(mdev, eth_net_offloads) ||
2497             !MLX5_CAP_GEN(mdev, nic_flow_table) ||
2498             !MLX5_CAP_ETH(mdev, csum_cap) ||
2499             !MLX5_CAP_ETH(mdev, max_lso_cap) ||
2500             !MLX5_CAP_ETH(mdev, vlan_cap) ||
2501             !MLX5_CAP_ETH(mdev, rss_ind_tbl_cap) ||
2502             MLX5_CAP_FLOWTABLE(mdev,
2503                                flow_table_properties_nic_receive.max_ft_level)
2504                                < 3) {
2505                 mlx5_core_warn(mdev,
2506                                "Not creating net device, some required device capabilities are missing\n");
2507                 return -ENOTSUPP;
2508         }
2509         if (!MLX5_CAP_ETH(mdev, self_lb_en_modifiable))
2510                 mlx5_core_warn(mdev, "Self loop back prevention is not supported\n");
2511         if (!MLX5_CAP_GEN(mdev, cq_moderation))
2512                 mlx5_core_warn(mdev, "CQ modiration is not supported\n");
2513
2514         return 0;
2515 }
2516
2517 u16 mlx5e_get_max_inline_cap(struct mlx5_core_dev *mdev)
2518 {
2519         int bf_buf_size = (1 << MLX5_CAP_GEN(mdev, log_bf_reg_size)) / 2;
2520
2521         return bf_buf_size -
2522                sizeof(struct mlx5e_tx_wqe) +
2523                2 /*sizeof(mlx5e_tx_wqe.inline_hdr_start)*/;
2524 }
2525
2526 #ifdef CONFIG_MLX5_CORE_EN_DCB
2527 static void mlx5e_ets_init(struct mlx5e_priv *priv)
2528 {
2529         int i;
2530
2531         priv->params.ets.ets_cap = mlx5_max_tc(priv->mdev) + 1;
2532         for (i = 0; i < priv->params.ets.ets_cap; i++) {
2533                 priv->params.ets.tc_tx_bw[i] = MLX5E_MAX_BW_ALLOC;
2534                 priv->params.ets.tc_tsa[i] = IEEE_8021QAZ_TSA_VENDOR;
2535                 priv->params.ets.prio_tc[i] = i;
2536         }
2537
2538         /* tclass[prio=0]=1, tclass[prio=1]=0, tclass[prio=i]=i (for i>1) */
2539         priv->params.ets.prio_tc[0] = 1;
2540         priv->params.ets.prio_tc[1] = 0;
2541 }
2542 #endif
2543
2544 void mlx5e_build_default_indir_rqt(struct mlx5_core_dev *mdev,
2545                                    u32 *indirection_rqt, int len,
2546                                    int num_channels)
2547 {
2548         int node = mdev->priv.numa_node;
2549         int node_num_of_cores;
2550         int i;
2551
2552         if (node == -1)
2553                 node = first_online_node;
2554
2555         node_num_of_cores = cpumask_weight(cpumask_of_node(node));
2556
2557         if (node_num_of_cores)
2558                 num_channels = min_t(int, num_channels, node_num_of_cores);
2559
2560         for (i = 0; i < len; i++)
2561                 indirection_rqt[i] = i % num_channels;
2562 }
2563
2564 static bool mlx5e_check_fragmented_striding_rq_cap(struct mlx5_core_dev *mdev)
2565 {
2566         return MLX5_CAP_GEN(mdev, striding_rq) &&
2567                 MLX5_CAP_GEN(mdev, umr_ptr_rlky) &&
2568                 MLX5_CAP_ETH(mdev, reg_umr_sq);
2569 }
2570
2571 static void mlx5e_build_netdev_priv(struct mlx5_core_dev *mdev,
2572                                     struct net_device *netdev,
2573                                     int num_channels)
2574 {
2575         struct mlx5e_priv *priv = netdev_priv(netdev);
2576
2577         priv->params.log_sq_size           =
2578                 MLX5E_PARAMS_DEFAULT_LOG_SQ_SIZE;
2579         priv->params.rq_wq_type = mlx5e_check_fragmented_striding_rq_cap(mdev) ?
2580                 MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ :
2581                 MLX5_WQ_TYPE_LINKED_LIST;
2582
2583         switch (priv->params.rq_wq_type) {
2584         case MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ:
2585                 priv->params.log_rq_size = MLX5E_PARAMS_DEFAULT_LOG_RQ_SIZE_MPW;
2586                 priv->params.lro_en = true;
2587                 break;
2588         default: /* MLX5_WQ_TYPE_LINKED_LIST */
2589                 priv->params.log_rq_size = MLX5E_PARAMS_DEFAULT_LOG_RQ_SIZE;
2590         }
2591
2592         priv->params.min_rx_wqes = mlx5_min_rx_wqes(priv->params.rq_wq_type,
2593                                             BIT(priv->params.log_rq_size));
2594         priv->params.rx_cq_moderation_usec =
2595                 MLX5E_PARAMS_DEFAULT_RX_CQ_MODERATION_USEC;
2596         priv->params.rx_cq_moderation_pkts =
2597                 MLX5E_PARAMS_DEFAULT_RX_CQ_MODERATION_PKTS;
2598         priv->params.tx_cq_moderation_usec =
2599                 MLX5E_PARAMS_DEFAULT_TX_CQ_MODERATION_USEC;
2600         priv->params.tx_cq_moderation_pkts =
2601                 MLX5E_PARAMS_DEFAULT_TX_CQ_MODERATION_PKTS;
2602         priv->params.tx_max_inline         = mlx5e_get_max_inline_cap(mdev);
2603         priv->params.num_tc                = 1;
2604         priv->params.rss_hfunc             = ETH_RSS_HASH_XOR;
2605
2606         netdev_rss_key_fill(priv->params.toeplitz_hash_key,
2607                             sizeof(priv->params.toeplitz_hash_key));
2608
2609         mlx5e_build_default_indir_rqt(mdev, priv->params.indirection_rqt,
2610                                       MLX5E_INDIR_RQT_SIZE, num_channels);
2611
2612         priv->params.lro_wqe_sz            =
2613                 MLX5E_PARAMS_DEFAULT_LRO_WQE_SZ;
2614
2615         priv->mdev                         = mdev;
2616         priv->netdev                       = netdev;
2617         priv->params.num_channels          = num_channels;
2618
2619 #ifdef CONFIG_MLX5_CORE_EN_DCB
2620         mlx5e_ets_init(priv);
2621 #endif
2622
2623         mutex_init(&priv->state_lock);
2624
2625         INIT_WORK(&priv->update_carrier_work, mlx5e_update_carrier_work);
2626         INIT_WORK(&priv->set_rx_mode_work, mlx5e_set_rx_mode_work);
2627         INIT_DELAYED_WORK(&priv->update_stats_work, mlx5e_update_stats_work);
2628 }
2629
2630 static void mlx5e_set_netdev_dev_addr(struct net_device *netdev)
2631 {
2632         struct mlx5e_priv *priv = netdev_priv(netdev);
2633
2634         mlx5_query_nic_vport_mac_address(priv->mdev, 0, netdev->dev_addr);
2635         if (is_zero_ether_addr(netdev->dev_addr) &&
2636             !MLX5_CAP_GEN(priv->mdev, vport_group_manager)) {
2637                 eth_hw_addr_random(netdev);
2638                 mlx5_core_info(priv->mdev, "Assigned random MAC address %pM\n", netdev->dev_addr);
2639         }
2640 }
2641
2642 static void mlx5e_build_netdev(struct net_device *netdev)
2643 {
2644         struct mlx5e_priv *priv = netdev_priv(netdev);
2645         struct mlx5_core_dev *mdev = priv->mdev;
2646         bool fcs_supported;
2647         bool fcs_enabled;
2648
2649         SET_NETDEV_DEV(netdev, &mdev->pdev->dev);
2650
2651         if (MLX5_CAP_GEN(mdev, vport_group_manager)) {
2652                 netdev->netdev_ops = &mlx5e_netdev_ops_sriov;
2653 #ifdef CONFIG_MLX5_CORE_EN_DCB
2654                 netdev->dcbnl_ops = &mlx5e_dcbnl_ops;
2655 #endif
2656         } else {
2657                 netdev->netdev_ops = &mlx5e_netdev_ops_basic;
2658         }
2659
2660         netdev->watchdog_timeo    = 15 * HZ;
2661
2662         netdev->ethtool_ops       = &mlx5e_ethtool_ops;
2663
2664         netdev->vlan_features    |= NETIF_F_SG;
2665         netdev->vlan_features    |= NETIF_F_IP_CSUM;
2666         netdev->vlan_features    |= NETIF_F_IPV6_CSUM;
2667         netdev->vlan_features    |= NETIF_F_GRO;
2668         netdev->vlan_features    |= NETIF_F_TSO;
2669         netdev->vlan_features    |= NETIF_F_TSO6;
2670         netdev->vlan_features    |= NETIF_F_RXCSUM;
2671         netdev->vlan_features    |= NETIF_F_RXHASH;
2672
2673         if (!!MLX5_CAP_ETH(mdev, lro_cap))
2674                 netdev->vlan_features    |= NETIF_F_LRO;
2675
2676         netdev->hw_features       = netdev->vlan_features;
2677         netdev->hw_features      |= NETIF_F_HW_VLAN_CTAG_TX;
2678         netdev->hw_features      |= NETIF_F_HW_VLAN_CTAG_RX;
2679         netdev->hw_features      |= NETIF_F_HW_VLAN_CTAG_FILTER;
2680
2681         if (mlx5e_vxlan_allowed(mdev)) {
2682                 netdev->hw_features     |= NETIF_F_GSO_UDP_TUNNEL;
2683                 netdev->hw_enc_features |= NETIF_F_IP_CSUM;
2684                 netdev->hw_enc_features |= NETIF_F_RXCSUM;
2685                 netdev->hw_enc_features |= NETIF_F_TSO;
2686                 netdev->hw_enc_features |= NETIF_F_TSO6;
2687                 netdev->hw_enc_features |= NETIF_F_RXHASH;
2688                 netdev->hw_enc_features |= NETIF_F_GSO_UDP_TUNNEL;
2689         }
2690
2691         mlx5_query_port_fcs(mdev, &fcs_supported, &fcs_enabled);
2692
2693         if (fcs_supported)
2694                 netdev->hw_features |= NETIF_F_RXALL;
2695
2696         netdev->features          = netdev->hw_features;
2697         if (!priv->params.lro_en)
2698                 netdev->features  &= ~NETIF_F_LRO;
2699
2700         if (fcs_enabled)
2701                 netdev->features  &= ~NETIF_F_RXALL;
2702
2703 #define FT_CAP(f) MLX5_CAP_FLOWTABLE(mdev, flow_table_properties_nic_receive.f)
2704         if (FT_CAP(flow_modify_en) &&
2705             FT_CAP(modify_root) &&
2706             FT_CAP(identified_miss_table_mode) &&
2707             FT_CAP(flow_table_modify))
2708                 priv->netdev->hw_features      |= NETIF_F_HW_TC;
2709
2710         netdev->features         |= NETIF_F_HIGHDMA;
2711
2712         netdev->priv_flags       |= IFF_UNICAST_FLT;
2713
2714         mlx5e_set_netdev_dev_addr(netdev);
2715 }
2716
2717 static int mlx5e_create_mkey(struct mlx5e_priv *priv, u32 pdn,
2718                              struct mlx5_core_mkey *mkey)
2719 {
2720         struct mlx5_core_dev *mdev = priv->mdev;
2721         struct mlx5_create_mkey_mbox_in *in;
2722         int err;
2723
2724         in = mlx5_vzalloc(sizeof(*in));
2725         if (!in)
2726                 return -ENOMEM;
2727
2728         in->seg.flags = MLX5_PERM_LOCAL_WRITE |
2729                         MLX5_PERM_LOCAL_READ  |
2730                         MLX5_ACCESS_MODE_PA;
2731         in->seg.flags_pd = cpu_to_be32(pdn | MLX5_MKEY_LEN64);
2732         in->seg.qpn_mkey7_0 = cpu_to_be32(0xffffff << 8);
2733
2734         err = mlx5_core_create_mkey(mdev, mkey, in, sizeof(*in), NULL, NULL,
2735                                     NULL);
2736
2737         kvfree(in);
2738
2739         return err;
2740 }
2741
2742 static void mlx5e_create_q_counter(struct mlx5e_priv *priv)
2743 {
2744         struct mlx5_core_dev *mdev = priv->mdev;
2745         int err;
2746
2747         err = mlx5_core_alloc_q_counter(mdev, &priv->q_counter);
2748         if (err) {
2749                 mlx5_core_warn(mdev, "alloc queue counter failed, %d\n", err);
2750                 priv->q_counter = 0;
2751         }
2752 }
2753
2754 static void mlx5e_destroy_q_counter(struct mlx5e_priv *priv)
2755 {
2756         if (!priv->q_counter)
2757                 return;
2758
2759         mlx5_core_dealloc_q_counter(priv->mdev, priv->q_counter);
2760 }
2761
2762 static int mlx5e_create_umr_mkey(struct mlx5e_priv *priv)
2763 {
2764         struct mlx5_core_dev *mdev = priv->mdev;
2765         struct mlx5_create_mkey_mbox_in *in;
2766         struct mlx5_mkey_seg *mkc;
2767         int inlen = sizeof(*in);
2768         u64 npages =
2769                 mlx5e_get_max_num_channels(mdev) * MLX5_CHANNEL_MAX_NUM_MTTS;
2770         int err;
2771
2772         in = mlx5_vzalloc(inlen);
2773         if (!in)
2774                 return -ENOMEM;
2775
2776         mkc = &in->seg;
2777         mkc->status = MLX5_MKEY_STATUS_FREE;
2778         mkc->flags = MLX5_PERM_UMR_EN |
2779                      MLX5_PERM_LOCAL_READ |
2780                      MLX5_PERM_LOCAL_WRITE |
2781                      MLX5_ACCESS_MODE_MTT;
2782
2783         mkc->qpn_mkey7_0 = cpu_to_be32(0xffffff << 8);
2784         mkc->flags_pd = cpu_to_be32(priv->pdn);
2785         mkc->len = cpu_to_be64(npages << PAGE_SHIFT);
2786         mkc->xlt_oct_size = cpu_to_be32(mlx5e_get_mtt_octw(npages));
2787         mkc->log2_page_size = PAGE_SHIFT;
2788
2789         err = mlx5_core_create_mkey(mdev, &priv->umr_mkey, in, inlen, NULL,
2790                                     NULL, NULL);
2791
2792         kvfree(in);
2793
2794         return err;
2795 }
2796
2797 static void *mlx5e_create_netdev(struct mlx5_core_dev *mdev)
2798 {
2799         struct net_device *netdev;
2800         struct mlx5e_priv *priv;
2801         int nch = mlx5e_get_max_num_channels(mdev);
2802         int err;
2803
2804         if (mlx5e_check_required_hca_cap(mdev))
2805                 return NULL;
2806
2807         netdev = alloc_etherdev_mqs(sizeof(struct mlx5e_priv),
2808                                     nch * MLX5E_MAX_NUM_TC,
2809                                     nch);
2810         if (!netdev) {
2811                 mlx5_core_err(mdev, "alloc_etherdev_mqs() failed\n");
2812                 return NULL;
2813         }
2814
2815         mlx5e_build_netdev_priv(mdev, netdev, nch);
2816         mlx5e_build_netdev(netdev);
2817
2818         netif_carrier_off(netdev);
2819
2820         priv = netdev_priv(netdev);
2821
2822         err = mlx5_alloc_map_uar(mdev, &priv->cq_uar, false);
2823         if (err) {
2824                 mlx5_core_err(mdev, "alloc_map uar failed, %d\n", err);
2825                 goto err_free_netdev;
2826         }
2827
2828         err = mlx5_core_alloc_pd(mdev, &priv->pdn);
2829         if (err) {
2830                 mlx5_core_err(mdev, "alloc pd failed, %d\n", err);
2831                 goto err_unmap_free_uar;
2832         }
2833
2834         err = mlx5_core_alloc_transport_domain(mdev, &priv->tdn);
2835         if (err) {
2836                 mlx5_core_err(mdev, "alloc td failed, %d\n", err);
2837                 goto err_dealloc_pd;
2838         }
2839
2840         err = mlx5e_create_mkey(priv, priv->pdn, &priv->mkey);
2841         if (err) {
2842                 mlx5_core_err(mdev, "create mkey failed, %d\n", err);
2843                 goto err_dealloc_transport_domain;
2844         }
2845
2846         err = mlx5e_create_umr_mkey(priv);
2847         if (err) {
2848                 mlx5_core_err(mdev, "create umr mkey failed, %d\n", err);
2849                 goto err_destroy_mkey;
2850         }
2851
2852         err = mlx5e_create_tises(priv);
2853         if (err) {
2854                 mlx5_core_warn(mdev, "create tises failed, %d\n", err);
2855                 goto err_destroy_umr_mkey;
2856         }
2857
2858         err = mlx5e_open_drop_rq(priv);
2859         if (err) {
2860                 mlx5_core_err(mdev, "open drop rq failed, %d\n", err);
2861                 goto err_destroy_tises;
2862         }
2863
2864         err = mlx5e_create_rqt(priv, MLX5E_INDIRECTION_RQT);
2865         if (err) {
2866                 mlx5_core_warn(mdev, "create rqt(INDIR) failed, %d\n", err);
2867                 goto err_close_drop_rq;
2868         }
2869
2870         err = mlx5e_create_rqt(priv, MLX5E_SINGLE_RQ_RQT);
2871         if (err) {
2872                 mlx5_core_warn(mdev, "create rqt(SINGLE) failed, %d\n", err);
2873                 goto err_destroy_rqt_indir;
2874         }
2875
2876         err = mlx5e_create_tirs(priv);
2877         if (err) {
2878                 mlx5_core_warn(mdev, "create tirs failed, %d\n", err);
2879                 goto err_destroy_rqt_single;
2880         }
2881
2882         err = mlx5e_create_flow_tables(priv);
2883         if (err) {
2884                 mlx5_core_warn(mdev, "create flow tables failed, %d\n", err);
2885                 goto err_destroy_tirs;
2886         }
2887
2888         mlx5e_create_q_counter(priv);
2889
2890         mlx5e_init_eth_addr(priv);
2891
2892         mlx5e_vxlan_init(priv);
2893
2894         err = mlx5e_tc_init(priv);
2895         if (err)
2896                 goto err_dealloc_q_counters;
2897
2898 #ifdef CONFIG_MLX5_CORE_EN_DCB
2899         mlx5e_dcbnl_ieee_setets_core(priv, &priv->params.ets);
2900 #endif
2901
2902         err = register_netdev(netdev);
2903         if (err) {
2904                 mlx5_core_err(mdev, "register_netdev failed, %d\n", err);
2905                 goto err_tc_cleanup;
2906         }
2907
2908         if (mlx5e_vxlan_allowed(mdev))
2909                 vxlan_get_rx_port(netdev);
2910
2911         mlx5e_enable_async_events(priv);
2912         schedule_work(&priv->set_rx_mode_work);
2913
2914         return priv;
2915
2916 err_tc_cleanup:
2917         mlx5e_tc_cleanup(priv);
2918
2919 err_dealloc_q_counters:
2920         mlx5e_destroy_q_counter(priv);
2921         mlx5e_destroy_flow_tables(priv);
2922
2923 err_destroy_tirs:
2924         mlx5e_destroy_tirs(priv);
2925
2926 err_destroy_rqt_single:
2927         mlx5e_destroy_rqt(priv, MLX5E_SINGLE_RQ_RQT);
2928
2929 err_destroy_rqt_indir:
2930         mlx5e_destroy_rqt(priv, MLX5E_INDIRECTION_RQT);
2931
2932 err_close_drop_rq:
2933         mlx5e_close_drop_rq(priv);
2934
2935 err_destroy_tises:
2936         mlx5e_destroy_tises(priv);
2937
2938 err_destroy_umr_mkey:
2939         mlx5_core_destroy_mkey(mdev, &priv->umr_mkey);
2940
2941 err_destroy_mkey:
2942         mlx5_core_destroy_mkey(mdev, &priv->mkey);
2943
2944 err_dealloc_transport_domain:
2945         mlx5_core_dealloc_transport_domain(mdev, priv->tdn);
2946
2947 err_dealloc_pd:
2948         mlx5_core_dealloc_pd(mdev, priv->pdn);
2949
2950 err_unmap_free_uar:
2951         mlx5_unmap_free_uar(mdev, &priv->cq_uar);
2952
2953 err_free_netdev:
2954         free_netdev(netdev);
2955
2956         return NULL;
2957 }
2958
2959 static void mlx5e_destroy_netdev(struct mlx5_core_dev *mdev, void *vpriv)
2960 {
2961         struct mlx5e_priv *priv = vpriv;
2962         struct net_device *netdev = priv->netdev;
2963
2964         set_bit(MLX5E_STATE_DESTROYING, &priv->state);
2965
2966         schedule_work(&priv->set_rx_mode_work);
2967         mlx5e_disable_async_events(priv);
2968         flush_scheduled_work();
2969         unregister_netdev(netdev);
2970         mlx5e_tc_cleanup(priv);
2971         mlx5e_vxlan_cleanup(priv);
2972         mlx5e_destroy_q_counter(priv);
2973         mlx5e_destroy_flow_tables(priv);
2974         mlx5e_destroy_tirs(priv);
2975         mlx5e_destroy_rqt(priv, MLX5E_SINGLE_RQ_RQT);
2976         mlx5e_destroy_rqt(priv, MLX5E_INDIRECTION_RQT);
2977         mlx5e_close_drop_rq(priv);
2978         mlx5e_destroy_tises(priv);
2979         mlx5_core_destroy_mkey(priv->mdev, &priv->umr_mkey);
2980         mlx5_core_destroy_mkey(priv->mdev, &priv->mkey);
2981         mlx5_core_dealloc_transport_domain(priv->mdev, priv->tdn);
2982         mlx5_core_dealloc_pd(priv->mdev, priv->pdn);
2983         mlx5_unmap_free_uar(priv->mdev, &priv->cq_uar);
2984         free_netdev(netdev);
2985 }
2986
2987 static void *mlx5e_get_netdev(void *vpriv)
2988 {
2989         struct mlx5e_priv *priv = vpriv;
2990
2991         return priv->netdev;
2992 }
2993
2994 static struct mlx5_interface mlx5e_interface = {
2995         .add       = mlx5e_create_netdev,
2996         .remove    = mlx5e_destroy_netdev,
2997         .event     = mlx5e_async_event,
2998         .protocol  = MLX5_INTERFACE_PROTOCOL_ETH,
2999         .get_dev   = mlx5e_get_netdev,
3000 };
3001
3002 void mlx5e_init(void)
3003 {
3004         mlx5_register_interface(&mlx5e_interface);
3005 }
3006
3007 void mlx5e_cleanup(void)
3008 {
3009         mlx5_unregister_interface(&mlx5e_interface);
3010 }