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 <linux/bpf.h>
  38 #include "eswitch.h"
  39 #include "en.h"
  40 #include "en_tc.h"
  41 #include "en_rep.h"
  42 #include "en_accel/ipsec.h"
  43 #include "en_accel/ipsec_rxtx.h"
  44 #include "accel/ipsec.h"
  45 #include "vxlan.h"
  46
  47 struct mlx5e_rq_param {
  48         u32                     rqc[MLX5_ST_SZ_DW(rqc)];
  49         struct mlx5_wq_param    wq;
  50 };
  51
  52 struct mlx5e_sq_param {
  53         u32                        sqc[MLX5_ST_SZ_DW(sqc)];
  54         struct mlx5_wq_param       wq;
  55 };
  56
  57 struct mlx5e_cq_param {
  58         u32                        cqc[MLX5_ST_SZ_DW(cqc)];
  59         struct mlx5_wq_param       wq;
  60         u16                        eq_ix;
  61         u8                         cq_period_mode;
  62 };
  63
  64 struct mlx5e_channel_param {
  65         struct mlx5e_rq_param      rq;
  66         struct mlx5e_sq_param      sq;
  67         struct mlx5e_sq_param      xdp_sq;
  68         struct mlx5e_sq_param      icosq;
  69         struct mlx5e_cq_param      rx_cq;
  70         struct mlx5e_cq_param      tx_cq;
  71         struct mlx5e_cq_param      icosq_cq;
  72 };
  73
  74 static bool mlx5e_check_fragmented_striding_rq_cap(struct mlx5_core_dev *mdev)
  75 {
  76         return MLX5_CAP_GEN(mdev, striding_rq) &&
  77                 MLX5_CAP_GEN(mdev, umr_ptr_rlky) &&
  78                 MLX5_CAP_ETH(mdev, reg_umr_sq);
  79 }
  80
  81 void mlx5e_set_rq_type_params(struct mlx5_core_dev *mdev,
  82                               struct mlx5e_params *params, u8 rq_type)
  83 {
  84         params->rq_wq_type = rq_type;
  85         params->lro_wqe_sz = MLX5E_PARAMS_DEFAULT_LRO_WQE_SZ;
  86         switch (params->rq_wq_type) {
  87         case MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ:
  88                 params->log_rq_size = is_kdump_kernel() ?
  89                         MLX5E_PARAMS_MINIMUM_LOG_RQ_SIZE_MPW :
  90                         MLX5E_PARAMS_DEFAULT_LOG_RQ_SIZE_MPW;
  91                 params->mpwqe_log_stride_sz =
  92                         MLX5E_GET_PFLAG(params, MLX5E_PFLAG_RX_CQE_COMPRESS) ?
  93                         MLX5_MPWRQ_CQE_CMPRS_LOG_STRIDE_SZ(mdev) :
  94                         MLX5_MPWRQ_DEF_LOG_STRIDE_SZ(mdev);
  95                 params->mpwqe_log_num_strides = MLX5_MPWRQ_LOG_WQE_SZ -
  96                         params->mpwqe_log_stride_sz;
  97                 break;
  98         default: /* MLX5_WQ_TYPE_LINKED_LIST */
  99                 params->log_rq_size = is_kdump_kernel() ?
 100                         MLX5E_PARAMS_MINIMUM_LOG_RQ_SIZE :
 101                         MLX5E_PARAMS_DEFAULT_LOG_RQ_SIZE;
 102                 params->rq_headroom = params->xdp_prog ?
 103                         XDP_PACKET_HEADROOM : MLX5_RX_HEADROOM;
 104                 params->rq_headroom += NET_IP_ALIGN;
 105
 106                 /* Extra room needed for build_skb */
 107                 params->lro_wqe_sz -= params->rq_headroom +
 108                         SKB_DATA_ALIGN(sizeof(struct skb_shared_info));
 109         }
 110
 111         mlx5_core_info(mdev, "MLX5E: StrdRq(%d) RqSz(%ld) StrdSz(%ld) RxCqeCmprss(%d)\n",
 112                        params->rq_wq_type == MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ,
 113                        BIT(params->log_rq_size),
 114                        BIT(params->mpwqe_log_stride_sz),
 115                        MLX5E_GET_PFLAG(params, MLX5E_PFLAG_RX_CQE_COMPRESS));
 116 }
 117
 118 static void mlx5e_set_rq_params(struct mlx5_core_dev *mdev, struct mlx5e_params *params)
 119 {
 120         u8 rq_type = mlx5e_check_fragmented_striding_rq_cap(mdev) &&
 121                     !params->xdp_prog && !MLX5_IPSEC_DEV(mdev) ?
 122                     MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ :
 123                     MLX5_WQ_TYPE_LINKED_LIST;
 124         mlx5e_set_rq_type_params(mdev, params, rq_type);
 125 }
 126
 127 static void mlx5e_update_carrier(struct mlx5e_priv *priv)
 128 {
 129         struct mlx5_core_dev *mdev = priv->mdev;
 130         u8 port_state;
 131
 132         port_state = mlx5_query_vport_state(mdev,
 133                                             MLX5_QUERY_VPORT_STATE_IN_OP_MOD_VNIC_VPORT,
 134                                             0);
 135
 136         if (port_state == VPORT_STATE_UP) {
 137                 netdev_info(priv->netdev, "Link up\n");
 138                 netif_carrier_on(priv->netdev);
 139         } else {
 140                 netdev_info(priv->netdev, "Link down\n");
 141                 netif_carrier_off(priv->netdev);
 142         }
 143 }
 144
 145 static void mlx5e_update_carrier_work(struct work_struct *work)
 146 {
 147         struct mlx5e_priv *priv = container_of(work, struct mlx5e_priv,
 148                                                update_carrier_work);
 149
 150         mutex_lock(&priv->state_lock);
 151         if (test_bit(MLX5E_STATE_OPENED, &priv->state))
 152                 if (priv->profile->update_carrier)
 153                         priv->profile->update_carrier(priv);
 154         mutex_unlock(&priv->state_lock);
 155 }
 156
 157 static void mlx5e_tx_timeout_work(struct work_struct *work)
 158 {
 159         struct mlx5e_priv *priv = container_of(work, struct mlx5e_priv,
 160                                                tx_timeout_work);
 161         int err;
 162
 163         rtnl_lock();
 164         mutex_lock(&priv->state_lock);
 165         if (!test_bit(MLX5E_STATE_OPENED, &priv->state))
 166                 goto unlock;
 167         mlx5e_close_locked(priv->netdev);
 168         err = mlx5e_open_locked(priv->netdev);
 169         if (err)
 170                 netdev_err(priv->netdev, "mlx5e_open_locked failed recovering from a tx_timeout, err(%d).\n",
 171                            err);
 172 unlock:
 173         mutex_unlock(&priv->state_lock);
 174         rtnl_unlock();
 175 }
 176
 177 static void mlx5e_update_sw_counters(struct mlx5e_priv *priv)
 178 {
 179         struct mlx5e_sw_stats temp, *s = &temp;
 180         struct mlx5e_rq_stats *rq_stats;
 181         struct mlx5e_sq_stats *sq_stats;
 182         u64 tx_offload_none = 0;
 183         int i, j;
 184
 185         memset(s, 0, sizeof(*s));
 186         for (i = 0; i < priv->channels.num; i++) {
 187                 struct mlx5e_channel *c = priv->channels.c[i];
 188
 189                 rq_stats = &c->rq.stats;
 190
 191                 s->rx_packets   += rq_stats->packets;
 192                 s->rx_bytes     += rq_stats->bytes;
 193                 s->rx_lro_packets += rq_stats->lro_packets;
 194                 s->rx_lro_bytes += rq_stats->lro_bytes;
 195                 s->rx_csum_none += rq_stats->csum_none;
 196                 s->rx_csum_complete += rq_stats->csum_complete;
 197                 s->rx_csum_unnecessary_inner += rq_stats->csum_unnecessary_inner;
 198                 s->rx_xdp_drop += rq_stats->xdp_drop;
 199                 s->rx_xdp_tx += rq_stats->xdp_tx;
 200                 s->rx_xdp_tx_full += rq_stats->xdp_tx_full;
 201                 s->rx_wqe_err   += rq_stats->wqe_err;
 202                 s->rx_mpwqe_filler += rq_stats->mpwqe_filler;
 203                 s->rx_buff_alloc_err += rq_stats->buff_alloc_err;
 204                 s->rx_cqe_compress_blks += rq_stats->cqe_compress_blks;
 205                 s->rx_cqe_compress_pkts += rq_stats->cqe_compress_pkts;
 206                 s->rx_page_reuse  += rq_stats->page_reuse;
 207                 s->rx_cache_reuse += rq_stats->cache_reuse;
 208                 s->rx_cache_full  += rq_stats->cache_full;
 209                 s->rx_cache_empty += rq_stats->cache_empty;
 210                 s->rx_cache_busy  += rq_stats->cache_busy;
 211
 212                 for (j = 0; j < priv->channels.params.num_tc; j++) {
 213                         sq_stats = &c->sq[j].stats;
 214
 215                         s->tx_packets           += sq_stats->packets;
 216                         s->tx_bytes             += sq_stats->bytes;
 217                         s->tx_tso_packets       += sq_stats->tso_packets;
 218                         s->tx_tso_bytes         += sq_stats->tso_bytes;
 219                         s->tx_tso_inner_packets += sq_stats->tso_inner_packets;
 220                         s->tx_tso_inner_bytes   += sq_stats->tso_inner_bytes;
 221                         s->tx_queue_stopped     += sq_stats->stopped;
 222                         s->tx_queue_wake        += sq_stats->wake;
 223                         s->tx_queue_dropped     += sq_stats->dropped;
 224                         s->tx_xmit_more         += sq_stats->xmit_more;
 225                         s->tx_csum_partial_inner += sq_stats->csum_partial_inner;
 226                         tx_offload_none         += sq_stats->csum_none;
 227                 }
 228         }
 229
 230         /* Update calculated offload counters */
 231         s->tx_csum_partial = s->tx_packets - tx_offload_none - s->tx_csum_partial_inner;
 232         s->rx_csum_unnecessary = s->rx_packets - s->rx_csum_none - s->rx_csum_complete;
 233
 234         s->link_down_events_phy = MLX5_GET(ppcnt_reg,
 235                                 priv->stats.pport.phy_counters,
 236                                 counter_set.phys_layer_cntrs.link_down_events);
 237         memcpy(&priv->stats.sw, s, sizeof(*s));
 238 }
 239
 240 static void mlx5e_update_vport_counters(struct mlx5e_priv *priv)
 241 {
 242         int outlen = MLX5_ST_SZ_BYTES(query_vport_counter_out);
 243         u32 *out = (u32 *)priv->stats.vport.query_vport_out;
 244         u32 in[MLX5_ST_SZ_DW(query_vport_counter_in)] = {0};
 245         struct mlx5_core_dev *mdev = priv->mdev;
 246
 247         MLX5_SET(query_vport_counter_in, in, opcode,
 248                  MLX5_CMD_OP_QUERY_VPORT_COUNTER);
 249         MLX5_SET(query_vport_counter_in, in, op_mod, 0);
 250         MLX5_SET(query_vport_counter_in, in, other_vport, 0);
 251
 252         mlx5_cmd_exec(mdev, in, sizeof(in), out, outlen);
 253 }
 254
 255 static void mlx5e_update_pport_counters(struct mlx5e_priv *priv, bool full)
 256 {
 257         struct mlx5e_pport_stats *pstats = &priv->stats.pport;
 258         struct mlx5_core_dev *mdev = priv->mdev;
 259         u32 in[MLX5_ST_SZ_DW(ppcnt_reg)] = {0};
 260         int sz = MLX5_ST_SZ_BYTES(ppcnt_reg);
 261         int prio;
 262         void *out;
 263
 264         MLX5_SET(ppcnt_reg, in, local_port, 1);
 265
 266         out = pstats->IEEE_802_3_counters;
 267         MLX5_SET(ppcnt_reg, in, grp, MLX5_IEEE_802_3_COUNTERS_GROUP);
 268         mlx5_core_access_reg(mdev, in, sz, out, sz, MLX5_REG_PPCNT, 0, 0);
 269
 270         if (!full)
 271                 return;
 272
 273         out = pstats->RFC_2863_counters;
 274         MLX5_SET(ppcnt_reg, in, grp, MLX5_RFC_2863_COUNTERS_GROUP);
 275         mlx5_core_access_reg(mdev, in, sz, out, sz, MLX5_REG_PPCNT, 0, 0);
 276
 277         out = pstats->RFC_2819_counters;
 278         MLX5_SET(ppcnt_reg, in, grp, MLX5_RFC_2819_COUNTERS_GROUP);
 279         mlx5_core_access_reg(mdev, in, sz, out, sz, MLX5_REG_PPCNT, 0, 0);
 280
 281         out = pstats->phy_counters;
 282         MLX5_SET(ppcnt_reg, in, grp, MLX5_PHYSICAL_LAYER_COUNTERS_GROUP);
 283         mlx5_core_access_reg(mdev, in, sz, out, sz, MLX5_REG_PPCNT, 0, 0);
 284
 285         if (MLX5_CAP_PCAM_FEATURE(mdev, ppcnt_statistical_group)) {
 286                 out = pstats->phy_statistical_counters;
 287                 MLX5_SET(ppcnt_reg, in, grp, MLX5_PHYSICAL_LAYER_STATISTICAL_GROUP);
 288                 mlx5_core_access_reg(mdev, in, sz, out, sz, MLX5_REG_PPCNT, 0, 0);
 289         }
 290
 291         MLX5_SET(ppcnt_reg, in, grp, MLX5_PER_PRIORITY_COUNTERS_GROUP);
 292         for (prio = 0; prio < NUM_PPORT_PRIO; prio++) {
 293                 out = pstats->per_prio_counters[prio];
 294                 MLX5_SET(ppcnt_reg, in, prio_tc, prio);
 295                 mlx5_core_access_reg(mdev, in, sz, out, sz,
 296                                      MLX5_REG_PPCNT, 0, 0);
 297         }
 298 }
 299
 300 static void mlx5e_update_q_counter(struct mlx5e_priv *priv)
 301 {
 302         struct mlx5e_qcounter_stats *qcnt = &priv->stats.qcnt;
 303         u32 out[MLX5_ST_SZ_DW(query_q_counter_out)];
 304         int err;
 305
 306         if (!priv->q_counter)
 307                 return;
 308
 309         err = mlx5_core_query_q_counter(priv->mdev, priv->q_counter, 0, out, sizeof(out));
 310         if (err)
 311                 return;
 312
 313         qcnt->rx_out_of_buffer = MLX5_GET(query_q_counter_out, out, out_of_buffer);
 314 }
 315
 316 static void mlx5e_update_pcie_counters(struct mlx5e_priv *priv)
 317 {
 318         struct mlx5e_pcie_stats *pcie_stats = &priv->stats.pcie;
 319         struct mlx5_core_dev *mdev = priv->mdev;
 320         u32 in[MLX5_ST_SZ_DW(mpcnt_reg)] = {0};
 321         int sz = MLX5_ST_SZ_BYTES(mpcnt_reg);
 322         void *out;
 323
 324         if (!MLX5_CAP_MCAM_FEATURE(mdev, pcie_performance_group))
 325                 return;
 326
 327         out = pcie_stats->pcie_perf_counters;
 328         MLX5_SET(mpcnt_reg, in, grp, MLX5_PCIE_PERFORMANCE_COUNTERS_GROUP);
 329         mlx5_core_access_reg(mdev, in, sz, out, sz, MLX5_REG_MPCNT, 0, 0);
 330 }
 331
 332 void mlx5e_update_stats(struct mlx5e_priv *priv, bool full)
 333 {
 334         if (full) {
 335                 mlx5e_update_pcie_counters(priv);
 336                 mlx5e_ipsec_update_stats(priv);
 337         }
 338         mlx5e_update_pport_counters(priv, full);
 339         mlx5e_update_vport_counters(priv);
 340         mlx5e_update_q_counter(priv);
 341         mlx5e_update_sw_counters(priv);
 342 }
 343
 344 static void mlx5e_update_ndo_stats(struct mlx5e_priv *priv)
 345 {
 346         mlx5e_update_stats(priv, false);
 347 }
 348
 349 void mlx5e_update_stats_work(struct work_struct *work)
 350 {
 351         struct delayed_work *dwork = to_delayed_work(work);
 352         struct mlx5e_priv *priv = container_of(dwork, struct mlx5e_priv,
 353                                                update_stats_work);
 354         mutex_lock(&priv->state_lock);
 355         if (test_bit(MLX5E_STATE_OPENED, &priv->state)) {
 356                 priv->profile->update_stats(priv);
 357                 queue_delayed_work(priv->wq, dwork,
 358                                    msecs_to_jiffies(MLX5E_UPDATE_STATS_INTERVAL));
 359         }
 360         mutex_unlock(&priv->state_lock);
 361 }
 362
 363 static void mlx5e_async_event(struct mlx5_core_dev *mdev, void *vpriv,
 364                               enum mlx5_dev_event event, unsigned long param)
 365 {
 366         struct mlx5e_priv *priv = vpriv;
 367         struct ptp_clock_event ptp_event;
 368         struct mlx5_eqe *eqe = NULL;
 369
 370         if (!test_bit(MLX5E_STATE_ASYNC_EVENTS_ENABLED, &priv->state))
 371                 return;
 372
 373         switch (event) {
 374         case MLX5_DEV_EVENT_PORT_UP:
 375         case MLX5_DEV_EVENT_PORT_DOWN:
 376                 queue_work(priv->wq, &priv->update_carrier_work);
 377                 break;
 378         case MLX5_DEV_EVENT_PPS:
 379                 eqe = (struct mlx5_eqe *)param;
 380                 ptp_event.index = eqe->data.pps.pin;
 381                 ptp_event.timestamp =
 382                         timecounter_cyc2time(&priv->tstamp.clock,
 383                                              be64_to_cpu(eqe->data.pps.time_stamp));
 384                 mlx5e_pps_event_handler(vpriv, &ptp_event);
 385                 break;
 386         default:
 387                 break;
 388         }
 389 }
 390
 391 static void mlx5e_enable_async_events(struct mlx5e_priv *priv)
 392 {
 393         set_bit(MLX5E_STATE_ASYNC_EVENTS_ENABLED, &priv->state);
 394 }
 395
 396 static void mlx5e_disable_async_events(struct mlx5e_priv *priv)
 397 {
 398         clear_bit(MLX5E_STATE_ASYNC_EVENTS_ENABLED, &priv->state);
 399         synchronize_irq(mlx5_get_msix_vec(priv->mdev, MLX5_EQ_VEC_ASYNC));
 400 }
 401
 402 static inline int mlx5e_get_wqe_mtt_sz(void)
 403 {
 404         /* UMR copies MTTs in units of MLX5_UMR_MTT_ALIGNMENT bytes.
 405          * To avoid copying garbage after the mtt array, we allocate
 406          * a little more.
 407          */
 408         return ALIGN(MLX5_MPWRQ_PAGES_PER_WQE * sizeof(__be64),
 409                      MLX5_UMR_MTT_ALIGNMENT);
 410 }
 411
 412 static inline void mlx5e_build_umr_wqe(struct mlx5e_rq *rq,
 413                                        struct mlx5e_icosq *sq,
 414                                        struct mlx5e_umr_wqe *wqe,
 415                                        u16 ix)
 416 {
 417         struct mlx5_wqe_ctrl_seg      *cseg = &wqe->ctrl;
 418         struct mlx5_wqe_umr_ctrl_seg *ucseg = &wqe->uctrl;
 419         struct mlx5_wqe_data_seg      *dseg = &wqe->data;
 420         struct mlx5e_mpw_info *wi = &rq->mpwqe.info[ix];
 421         u8 ds_cnt = DIV_ROUND_UP(sizeof(*wqe), MLX5_SEND_WQE_DS);
 422         u32 umr_wqe_mtt_offset = mlx5e_get_wqe_mtt_offset(rq, ix);
 423
 424         cseg->qpn_ds    = cpu_to_be32((sq->sqn << MLX5_WQE_CTRL_QPN_SHIFT) |
 425                                       ds_cnt);
 426         cseg->fm_ce_se  = MLX5_WQE_CTRL_CQ_UPDATE;
 427         cseg->imm       = rq->mkey_be;
 428
 429         ucseg->flags = MLX5_UMR_TRANSLATION_OFFSET_EN;
 430         ucseg->xlt_octowords =
 431                 cpu_to_be16(MLX5_MTT_OCTW(MLX5_MPWRQ_PAGES_PER_WQE));
 432         ucseg->bsf_octowords =
 433                 cpu_to_be16(MLX5_MTT_OCTW(umr_wqe_mtt_offset));
 434         ucseg->mkey_mask     = cpu_to_be64(MLX5_MKEY_MASK_FREE);
 435
 436         dseg->lkey = sq->mkey_be;
 437         dseg->addr = cpu_to_be64(wi->umr.mtt_addr);
 438 }
 439
 440 static int mlx5e_rq_alloc_mpwqe_info(struct mlx5e_rq *rq,
 441                                      struct mlx5e_channel *c)
 442 {
 443         int wq_sz = mlx5_wq_ll_get_size(&rq->wq);
 444         int mtt_sz = mlx5e_get_wqe_mtt_sz();
 445         int mtt_alloc = mtt_sz + MLX5_UMR_ALIGN - 1;
 446         int i;
 447
 448         rq->mpwqe.info = kzalloc_node(wq_sz * sizeof(*rq->mpwqe.info),
 449                                       GFP_KERNEL, cpu_to_node(c->cpu));
 450         if (!rq->mpwqe.info)
 451                 goto err_out;
 452
 453         /* We allocate more than mtt_sz as we will align the pointer */
 454         rq->mpwqe.mtt_no_align = kzalloc_node(mtt_alloc * wq_sz, GFP_KERNEL,
 455                                         cpu_to_node(c->cpu));
 456         if (unlikely(!rq->mpwqe.mtt_no_align))
 457                 goto err_free_wqe_info;
 458
 459         for (i = 0; i < wq_sz; i++) {
 460                 struct mlx5e_mpw_info *wi = &rq->mpwqe.info[i];
 461
 462                 wi->umr.mtt = PTR_ALIGN(rq->mpwqe.mtt_no_align + i * mtt_alloc,
 463                                         MLX5_UMR_ALIGN);
 464                 wi->umr.mtt_addr = dma_map_single(c->pdev, wi->umr.mtt, mtt_sz,
 465                                                   PCI_DMA_TODEVICE);
 466                 if (unlikely(dma_mapping_error(c->pdev, wi->umr.mtt_addr)))
 467                         goto err_unmap_mtts;
 468
 469                 mlx5e_build_umr_wqe(rq, &c->icosq, &wi->umr.wqe, i);
 470         }
 471
 472         return 0;
 473
 474 err_unmap_mtts:
 475         while (--i >= 0) {
 476                 struct mlx5e_mpw_info *wi = &rq->mpwqe.info[i];
 477
 478                 dma_unmap_single(c->pdev, wi->umr.mtt_addr, mtt_sz,
 479                                  PCI_DMA_TODEVICE);
 480         }
 481         kfree(rq->mpwqe.mtt_no_align);
 482 err_free_wqe_info:
 483         kfree(rq->mpwqe.info);
 484
 485 err_out:
 486         return -ENOMEM;
 487 }
 488
 489 static void mlx5e_rq_free_mpwqe_info(struct mlx5e_rq *rq)
 490 {
 491         int wq_sz = mlx5_wq_ll_get_size(&rq->wq);
 492         int mtt_sz = mlx5e_get_wqe_mtt_sz();
 493         int i;
 494
 495         for (i = 0; i < wq_sz; i++) {
 496                 struct mlx5e_mpw_info *wi = &rq->mpwqe.info[i];
 497
 498                 dma_unmap_single(rq->pdev, wi->umr.mtt_addr, mtt_sz,
 499                                  PCI_DMA_TODEVICE);
 500         }
 501         kfree(rq->mpwqe.mtt_no_align);
 502         kfree(rq->mpwqe.info);
 503 }
 504
 505 static int mlx5e_create_umr_mkey(struct mlx5_core_dev *mdev,
 506                                  u64 npages, u8 page_shift,
 507                                  struct mlx5_core_mkey *umr_mkey)
 508 {
 509         int inlen = MLX5_ST_SZ_BYTES(create_mkey_in);
 510         void *mkc;
 511         u32 *in;
 512         int err;
 513
 514         if (!MLX5E_VALID_NUM_MTTS(npages))
 515                 return -EINVAL;
 516
 517         in = kvzalloc(inlen, GFP_KERNEL);
 518         if (!in)
 519                 return -ENOMEM;
 520
 521         mkc = MLX5_ADDR_OF(create_mkey_in, in, memory_key_mkey_entry);
 522
 523         MLX5_SET(mkc, mkc, free, 1);
 524         MLX5_SET(mkc, mkc, umr_en, 1);
 525         MLX5_SET(mkc, mkc, lw, 1);
 526         MLX5_SET(mkc, mkc, lr, 1);
 527         MLX5_SET(mkc, mkc, access_mode, MLX5_MKC_ACCESS_MODE_MTT);
 528
 529         MLX5_SET(mkc, mkc, qpn, 0xffffff);
 530         MLX5_SET(mkc, mkc, pd, mdev->mlx5e_res.pdn);
 531         MLX5_SET64(mkc, mkc, len, npages << page_shift);
 532         MLX5_SET(mkc, mkc, translations_octword_size,
 533                  MLX5_MTT_OCTW(npages));
 534         MLX5_SET(mkc, mkc, log_page_size, page_shift);
 535
 536         err = mlx5_core_create_mkey(mdev, umr_mkey, in, inlen);
 537
 538         kvfree(in);
 539         return err;
 540 }
 541
 542 static int mlx5e_create_rq_umr_mkey(struct mlx5_core_dev *mdev, struct mlx5e_rq *rq)
 543 {
 544         u64 num_mtts = MLX5E_REQUIRED_MTTS(mlx5_wq_ll_get_size(&rq->wq));
 545
 546         return mlx5e_create_umr_mkey(mdev, num_mtts, PAGE_SHIFT, &rq->umr_mkey);
 547 }
 548
 549 static int mlx5e_alloc_rq(struct mlx5e_channel *c,
 550                           struct mlx5e_params *params,
 551                           struct mlx5e_rq_param *rqp,
 552                           struct mlx5e_rq *rq)
 553 {
 554         struct mlx5_core_dev *mdev = c->mdev;
 555         void *rqc = rqp->rqc;
 556         void *rqc_wq = MLX5_ADDR_OF(rqc, rqc, wq);
 557         u32 byte_count;
 558         int npages;
 559         int wq_sz;
 560         int err;
 561         int i;
 562
 563         rqp->wq.db_numa_node = cpu_to_node(c->cpu);
 564
 565         err = mlx5_wq_ll_create(mdev, &rqp->wq, rqc_wq, &rq->wq,
 566                                 &rq->wq_ctrl);
 567         if (err)
 568                 return err;
 569
 570         rq->wq.db = &rq->wq.db[MLX5_RCV_DBR];
 571
 572         wq_sz = mlx5_wq_ll_get_size(&rq->wq);
 573
 574         rq->wq_type = params->rq_wq_type;
 575         rq->pdev    = c->pdev;
 576         rq->netdev  = c->netdev;
 577         rq->tstamp  = c->tstamp;
 578         rq->channel = c;
 579         rq->ix      = c->ix;
 580         rq->mdev    = mdev;
 581
 582         rq->xdp_prog = params->xdp_prog ? bpf_prog_inc(params->xdp_prog) : NULL;
 583         if (IS_ERR(rq->xdp_prog)) {
 584                 err = PTR_ERR(rq->xdp_prog);
 585                 rq->xdp_prog = NULL;
 586                 goto err_rq_wq_destroy;
 587         }
 588
 589         rq->buff.map_dir = rq->xdp_prog ? DMA_BIDIRECTIONAL : DMA_FROM_DEVICE;
 590         rq->rx_headroom = params->rq_headroom;
 591
 592         switch (rq->wq_type) {
 593         case MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ:
 594
 595                 rq->alloc_wqe = mlx5e_alloc_rx_mpwqe;
 596                 rq->dealloc_wqe = mlx5e_dealloc_rx_mpwqe;
 597
 598                 rq->handle_rx_cqe = c->priv->profile->rx_handlers.handle_rx_cqe_mpwqe;
 599 #ifdef CONFIG_MLX5_EN_IPSEC
 600                 if (MLX5_IPSEC_DEV(mdev)) {
 601                         err = -EINVAL;
 602                         netdev_err(c->netdev, "MPWQE RQ with IPSec offload not supported\n");
 603                         goto err_rq_wq_destroy;
 604                 }
 605 #endif
 606                 if (!rq->handle_rx_cqe) {
 607                         err = -EINVAL;
 608                         netdev_err(c->netdev, "RX handler of MPWQE RQ is not set, err %d\n", err);
 609                         goto err_rq_wq_destroy;
 610                 }
 611
 612                 rq->mpwqe_stride_sz = BIT(params->mpwqe_log_stride_sz);
 613                 rq->mpwqe_num_strides = BIT(params->mpwqe_log_num_strides);
 614
 615                 rq->buff.wqe_sz = rq->mpwqe_stride_sz * rq->mpwqe_num_strides;
 616                 byte_count = rq->buff.wqe_sz;
 617
 618                 err = mlx5e_create_rq_umr_mkey(mdev, rq);
 619                 if (err)
 620                         goto err_rq_wq_destroy;
 621                 rq->mkey_be = cpu_to_be32(rq->umr_mkey.key);
 622
 623                 err = mlx5e_rq_alloc_mpwqe_info(rq, c);
 624                 if (err)
 625                         goto err_destroy_umr_mkey;
 626                 break;
 627         default: /* MLX5_WQ_TYPE_LINKED_LIST */
 628                 rq->wqe.frag_info =
 629                         kzalloc_node(wq_sz * sizeof(*rq->wqe.frag_info),
 630                                      GFP_KERNEL, cpu_to_node(c->cpu));
 631                 if (!rq->wqe.frag_info) {
 632                         err = -ENOMEM;
 633                         goto err_rq_wq_destroy;
 634                 }
 635                 rq->alloc_wqe = mlx5e_alloc_rx_wqe;
 636                 rq->dealloc_wqe = mlx5e_dealloc_rx_wqe;
 637
 638 #ifdef CONFIG_MLX5_EN_IPSEC
 639                 if (c->priv->ipsec)
 640                         rq->handle_rx_cqe = mlx5e_ipsec_handle_rx_cqe;
 641                 else
 642 #endif
 643                         rq->handle_rx_cqe = c->priv->profile->rx_handlers.handle_rx_cqe;
 644                 if (!rq->handle_rx_cqe) {
 645                         kfree(rq->wqe.frag_info);
 646                         err = -EINVAL;
 647                         netdev_err(c->netdev, "RX handler of RQ is not set, err %d\n", err);
 648                         goto err_rq_wq_destroy;
 649                 }
 650
 651                 rq->buff.wqe_sz = params->lro_en  ?
 652                                 params->lro_wqe_sz :
 653                                 MLX5E_SW2HW_MTU(c->priv, c->netdev->mtu);
 654 #ifdef CONFIG_MLX5_EN_IPSEC
 655                 if (MLX5_IPSEC_DEV(mdev))
 656                         rq->buff.wqe_sz += MLX5E_METADATA_ETHER_LEN;
 657 #endif
 658                 rq->wqe.page_reuse = !params->xdp_prog && !params->lro_en;
 659                 byte_count = rq->buff.wqe_sz;
 660
 661                 /* calc the required page order */
 662                 rq->wqe.frag_sz = MLX5_SKB_FRAG_SZ(rq->rx_headroom + byte_count);
 663                 npages = DIV_ROUND_UP(rq->wqe.frag_sz, PAGE_SIZE);
 664                 rq->buff.page_order = order_base_2(npages);
 665
 666                 byte_count |= MLX5_HW_START_PADDING;
 667                 rq->mkey_be = c->mkey_be;
 668         }
 669
 670         for (i = 0; i < wq_sz; i++) {
 671                 struct mlx5e_rx_wqe *wqe = mlx5_wq_ll_get_wqe(&rq->wq, i);
 672
 673                 wqe->data.byte_count = cpu_to_be32(byte_count);
 674                 wqe->data.lkey = rq->mkey_be;
 675         }
 676
 677         INIT_WORK(&rq->am.work, mlx5e_rx_am_work);
 678         rq->am.mode = params->rx_cq_period_mode;
 679         rq->page_cache.head = 0;
 680         rq->page_cache.tail = 0;
 681
 682         return 0;
 683
 684 err_destroy_umr_mkey:
 685         mlx5_core_destroy_mkey(mdev, &rq->umr_mkey);
 686
 687 err_rq_wq_destroy:
 688         if (rq->xdp_prog)
 689                 bpf_prog_put(rq->xdp_prog);
 690         mlx5_wq_destroy(&rq->wq_ctrl);
 691
 692         return err;
 693 }
 694
 695 static void mlx5e_free_rq(struct mlx5e_rq *rq)
 696 {
 697         int i;
 698
 699         if (rq->xdp_prog)
 700                 bpf_prog_put(rq->xdp_prog);
 701
 702         switch (rq->wq_type) {
 703         case MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ:
 704                 mlx5e_rq_free_mpwqe_info(rq);
 705                 mlx5_core_destroy_mkey(rq->mdev, &rq->umr_mkey);
 706                 break;
 707         default: /* MLX5_WQ_TYPE_LINKED_LIST */
 708                 kfree(rq->wqe.frag_info);
 709         }
 710
 711         for (i = rq->page_cache.head; i != rq->page_cache.tail;
 712              i = (i + 1) & (MLX5E_CACHE_SIZE - 1)) {
 713                 struct mlx5e_dma_info *dma_info = &rq->page_cache.page_cache[i];
 714
 715                 mlx5e_page_release(rq, dma_info, false);
 716         }
 717         mlx5_wq_destroy(&rq->wq_ctrl);
 718 }
 719
 720 static int mlx5e_create_rq(struct mlx5e_rq *rq,
 721                            struct mlx5e_rq_param *param)
 722 {
 723         struct mlx5_core_dev *mdev = rq->mdev;
 724
 725         void *in;
 726         void *rqc;
 727         void *wq;
 728         int inlen;
 729         int err;
 730
 731         inlen = MLX5_ST_SZ_BYTES(create_rq_in) +
 732                 sizeof(u64) * rq->wq_ctrl.buf.npages;
 733         in = kvzalloc(inlen, GFP_KERNEL);
 734         if (!in)
 735                 return -ENOMEM;
 736
 737         rqc = MLX5_ADDR_OF(create_rq_in, in, ctx);
 738         wq  = MLX5_ADDR_OF(rqc, rqc, wq);
 739
 740         memcpy(rqc, param->rqc, sizeof(param->rqc));
 741
 742         MLX5_SET(rqc,  rqc, cqn,                rq->cq.mcq.cqn);
 743         MLX5_SET(rqc,  rqc, state,              MLX5_RQC_STATE_RST);
 744         MLX5_SET(wq,   wq,  log_wq_pg_sz,       rq->wq_ctrl.buf.page_shift -
 745                                                 MLX5_ADAPTER_PAGE_SHIFT);
 746         MLX5_SET64(wq, wq,  dbr_addr,           rq->wq_ctrl.db.dma);
 747
 748         mlx5_fill_page_array(&rq->wq_ctrl.buf,
 749                              (__be64 *)MLX5_ADDR_OF(wq, wq, pas));
 750
 751         err = mlx5_core_create_rq(mdev, in, inlen, &rq->rqn);
 752
 753         kvfree(in);
 754
 755         return err;
 756 }
 757
 758 static int mlx5e_modify_rq_state(struct mlx5e_rq *rq, int curr_state,
 759                                  int next_state)
 760 {
 761         struct mlx5e_channel *c = rq->channel;
 762         struct mlx5_core_dev *mdev = c->mdev;
 763
 764         void *in;
 765         void *rqc;
 766         int inlen;
 767         int err;
 768
 769         inlen = MLX5_ST_SZ_BYTES(modify_rq_in);
 770         in = kvzalloc(inlen, GFP_KERNEL);
 771         if (!in)
 772                 return -ENOMEM;
 773
 774         rqc = MLX5_ADDR_OF(modify_rq_in, in, ctx);
 775
 776         MLX5_SET(modify_rq_in, in, rq_state, curr_state);
 777         MLX5_SET(rqc, rqc, state, next_state);
 778
 779         err = mlx5_core_modify_rq(mdev, rq->rqn, in, inlen);
 780
 781         kvfree(in);
 782
 783         return err;
 784 }
 785
 786 static int mlx5e_modify_rq_scatter_fcs(struct mlx5e_rq *rq, bool enable)
 787 {
 788         struct mlx5e_channel *c = rq->channel;
 789         struct mlx5e_priv *priv = c->priv;
 790         struct mlx5_core_dev *mdev = priv->mdev;
 791
 792         void *in;
 793         void *rqc;
 794         int inlen;
 795         int err;
 796
 797         inlen = MLX5_ST_SZ_BYTES(modify_rq_in);
 798         in = kvzalloc(inlen, GFP_KERNEL);
 799         if (!in)
 800                 return -ENOMEM;
 801
 802         rqc = MLX5_ADDR_OF(modify_rq_in, in, ctx);
 803
 804         MLX5_SET(modify_rq_in, in, rq_state, MLX5_RQC_STATE_RDY);
 805         MLX5_SET64(modify_rq_in, in, modify_bitmask,
 806                    MLX5_MODIFY_RQ_IN_MODIFY_BITMASK_SCATTER_FCS);
 807         MLX5_SET(rqc, rqc, scatter_fcs, enable);
 808         MLX5_SET(rqc, rqc, state, MLX5_RQC_STATE_RDY);
 809
 810         err = mlx5_core_modify_rq(mdev, rq->rqn, in, inlen);
 811
 812         kvfree(in);
 813
 814         return err;
 815 }
 816
 817 static int mlx5e_modify_rq_vsd(struct mlx5e_rq *rq, bool vsd)
 818 {
 819         struct mlx5e_channel *c = rq->channel;
 820         struct mlx5_core_dev *mdev = c->mdev;
 821         void *in;
 822         void *rqc;
 823         int inlen;
 824         int err;
 825
 826         inlen = MLX5_ST_SZ_BYTES(modify_rq_in);
 827         in = kvzalloc(inlen, GFP_KERNEL);
 828         if (!in)
 829                 return -ENOMEM;
 830
 831         rqc = MLX5_ADDR_OF(modify_rq_in, in, ctx);
 832
 833         MLX5_SET(modify_rq_in, in, rq_state, MLX5_RQC_STATE_RDY);
 834         MLX5_SET64(modify_rq_in, in, modify_bitmask,
 835                    MLX5_MODIFY_RQ_IN_MODIFY_BITMASK_VSD);
 836         MLX5_SET(rqc, rqc, vsd, vsd);
 837         MLX5_SET(rqc, rqc, state, MLX5_RQC_STATE_RDY);
 838
 839         err = mlx5_core_modify_rq(mdev, rq->rqn, in, inlen);
 840
 841         kvfree(in);
 842
 843         return err;
 844 }
 845
 846 static void mlx5e_destroy_rq(struct mlx5e_rq *rq)
 847 {
 848         mlx5_core_destroy_rq(rq->mdev, rq->rqn);
 849 }
 850
 851 static int mlx5e_wait_for_min_rx_wqes(struct mlx5e_rq *rq)
 852 {
 853         unsigned long exp_time = jiffies + msecs_to_jiffies(20000);
 854         struct mlx5e_channel *c = rq->channel;
 855
 856         struct mlx5_wq_ll *wq = &rq->wq;
 857         u16 min_wqes = mlx5_min_rx_wqes(rq->wq_type, mlx5_wq_ll_get_size(wq));
 858
 859         while (time_before(jiffies, exp_time)) {
 860                 if (wq->cur_sz >= min_wqes)
 861                         return 0;
 862
 863                 msleep(20);
 864         }
 865
 866         netdev_warn(c->netdev, "Failed to get min RX wqes on RQN[0x%x] wq cur_sz(%d) min_rx_wqes(%d)\n",
 867                     rq->rqn, wq->cur_sz, min_wqes);
 868         return -ETIMEDOUT;
 869 }
 870
 871 static void mlx5e_free_rx_descs(struct mlx5e_rq *rq)
 872 {
 873         struct mlx5_wq_ll *wq = &rq->wq;
 874         struct mlx5e_rx_wqe *wqe;
 875         __be16 wqe_ix_be;
 876         u16 wqe_ix;
 877
 878         /* UMR WQE (if in progress) is always at wq->head */
 879         if (test_bit(MLX5E_RQ_STATE_UMR_WQE_IN_PROGRESS, &rq->state))
 880                 mlx5e_free_rx_mpwqe(rq, &rq->mpwqe.info[wq->head]);
 881
 882         while (!mlx5_wq_ll_is_empty(wq)) {
 883                 wqe_ix_be = *wq->tail_next;
 884                 wqe_ix    = be16_to_cpu(wqe_ix_be);
 885                 wqe       = mlx5_wq_ll_get_wqe(&rq->wq, wqe_ix);
 886                 rq->dealloc_wqe(rq, wqe_ix);
 887                 mlx5_wq_ll_pop(&rq->wq, wqe_ix_be,
 888                                &wqe->next.next_wqe_index);
 889         }
 890
 891         if (rq->wq_type == MLX5_WQ_TYPE_LINKED_LIST && rq->wqe.page_reuse) {
 892                 /* Clean outstanding pages on handled WQEs that decided to do page-reuse,
 893                  * but yet to be re-posted.
 894                  */
 895                 int wq_sz = mlx5_wq_ll_get_size(&rq->wq);
 896
 897                 for (wqe_ix = 0; wqe_ix < wq_sz; wqe_ix++)
 898                         rq->dealloc_wqe(rq, wqe_ix);
 899         }
 900 }
 901
 902 static int mlx5e_open_rq(struct mlx5e_channel *c,
 903                          struct mlx5e_params *params,
 904                          struct mlx5e_rq_param *param,
 905                          struct mlx5e_rq *rq)
 906 {
 907         int err;
 908
 909         err = mlx5e_alloc_rq(c, params, param, rq);
 910         if (err)
 911                 return err;
 912
 913         err = mlx5e_create_rq(rq, param);
 914         if (err)
 915                 goto err_free_rq;
 916
 917         err = mlx5e_modify_rq_state(rq, MLX5_RQC_STATE_RST, MLX5_RQC_STATE_RDY);
 918         if (err)
 919                 goto err_destroy_rq;
 920
 921         if (params->rx_am_enabled)
 922                 set_bit(MLX5E_RQ_STATE_AM, &c->rq.state);
 923
 924         return 0;
 925
 926 err_destroy_rq:
 927         mlx5e_destroy_rq(rq);
 928 err_free_rq:
 929         mlx5e_free_rq(rq);
 930
 931         return err;
 932 }
 933
 934 static void mlx5e_activate_rq(struct mlx5e_rq *rq)
 935 {
 936         struct mlx5e_icosq *sq = &rq->channel->icosq;
 937         u16 pi = sq->pc & sq->wq.sz_m1;
 938         struct mlx5e_tx_wqe *nopwqe;
 939
 940         set_bit(MLX5E_RQ_STATE_ENABLED, &rq->state);
 941         sq->db.ico_wqe[pi].opcode     = MLX5_OPCODE_NOP;
 942         sq->db.ico_wqe[pi].num_wqebbs = 1;
 943         nopwqe = mlx5e_post_nop(&sq->wq, sq->sqn, &sq->pc);
 944         mlx5e_notify_hw(&sq->wq, sq->pc, sq->uar_map, &nopwqe->ctrl);
 945 }
 946
 947 static void mlx5e_deactivate_rq(struct mlx5e_rq *rq)
 948 {
 949         clear_bit(MLX5E_RQ_STATE_ENABLED, &rq->state);
 950         napi_synchronize(&rq->channel->napi); /* prevent mlx5e_post_rx_wqes */
 951 }
 952
 953 static void mlx5e_close_rq(struct mlx5e_rq *rq)
 954 {
 955         cancel_work_sync(&rq->am.work);
 956         mlx5e_destroy_rq(rq);
 957         mlx5e_free_rx_descs(rq);
 958         mlx5e_free_rq(rq);
 959 }
 960
 961 static void mlx5e_free_xdpsq_db(struct mlx5e_xdpsq *sq)
 962 {
 963         kfree(sq->db.di);
 964 }
 965
 966 static int mlx5e_alloc_xdpsq_db(struct mlx5e_xdpsq *sq, int numa)
 967 {
 968         int wq_sz = mlx5_wq_cyc_get_size(&sq->wq);
 969
 970         sq->db.di = kzalloc_node(sizeof(*sq->db.di) * wq_sz,
 971                                      GFP_KERNEL, numa);
 972         if (!sq->db.di) {
 973                 mlx5e_free_xdpsq_db(sq);
 974                 return -ENOMEM;
 975         }
 976
 977         return 0;
 978 }
 979
 980 static int mlx5e_alloc_xdpsq(struct mlx5e_channel *c,
 981                              struct mlx5e_params *params,
 982                              struct mlx5e_sq_param *param,
 983                              struct mlx5e_xdpsq *sq)
 984 {
 985         void *sqc_wq               = MLX5_ADDR_OF(sqc, param->sqc, wq);
 986         struct mlx5_core_dev *mdev = c->mdev;
 987         int err;
 988
 989         sq->pdev      = c->pdev;
 990         sq->mkey_be   = c->mkey_be;
 991         sq->channel   = c;
 992         sq->uar_map   = mdev->mlx5e_res.bfreg.map;
 993         sq->min_inline_mode = params->tx_min_inline_mode;
 994
 995         param->wq.db_numa_node = cpu_to_node(c->cpu);
 996         err = mlx5_wq_cyc_create(mdev, &param->wq, sqc_wq, &sq->wq, &sq->wq_ctrl);
 997         if (err)
 998                 return err;
 999         sq->wq.db = &sq->wq.db[MLX5_SND_DBR];
1000
1001         err = mlx5e_alloc_xdpsq_db(sq, cpu_to_node(c->cpu));
1002         if (err)
1003                 goto err_sq_wq_destroy;
1004
1005         return 0;
1006
1007 err_sq_wq_destroy:
1008         mlx5_wq_destroy(&sq->wq_ctrl);
1009
1010         return err;
1011 }
1012
1013 static void mlx5e_free_xdpsq(struct mlx5e_xdpsq *sq)
1014 {
1015         mlx5e_free_xdpsq_db(sq);
1016         mlx5_wq_destroy(&sq->wq_ctrl);
1017 }
1018
1019 static void mlx5e_free_icosq_db(struct mlx5e_icosq *sq)
1020 {
1021         kfree(sq->db.ico_wqe);
1022 }
1023
1024 static int mlx5e_alloc_icosq_db(struct mlx5e_icosq *sq, int numa)
1025 {
1026         u8 wq_sz = mlx5_wq_cyc_get_size(&sq->wq);
1027
1028         sq->db.ico_wqe = kzalloc_node(sizeof(*sq->db.ico_wqe) * wq_sz,
1029                                       GFP_KERNEL, numa);
1030         if (!sq->db.ico_wqe)
1031                 return -ENOMEM;
1032
1033         return 0;
1034 }
1035
1036 static int mlx5e_alloc_icosq(struct mlx5e_channel *c,
1037                              struct mlx5e_sq_param *param,
1038                              struct mlx5e_icosq *sq)
1039 {
1040         void *sqc_wq               = MLX5_ADDR_OF(sqc, param->sqc, wq);
1041         struct mlx5_core_dev *mdev = c->mdev;
1042         int err;
1043
1044         sq->pdev      = c->pdev;
1045         sq->mkey_be   = c->mkey_be;
1046         sq->channel   = c;
1047         sq->uar_map   = mdev->mlx5e_res.bfreg.map;
1048
1049         param->wq.db_numa_node = cpu_to_node(c->cpu);
1050         err = mlx5_wq_cyc_create(mdev, &param->wq, sqc_wq, &sq->wq, &sq->wq_ctrl);
1051         if (err)
1052                 return err;
1053         sq->wq.db = &sq->wq.db[MLX5_SND_DBR];
1054
1055         err = mlx5e_alloc_icosq_db(sq, cpu_to_node(c->cpu));
1056         if (err)
1057                 goto err_sq_wq_destroy;
1058
1059         sq->edge = (sq->wq.sz_m1 + 1) - MLX5E_ICOSQ_MAX_WQEBBS;
1060
1061         return 0;
1062
1063 err_sq_wq_destroy:
1064         mlx5_wq_destroy(&sq->wq_ctrl);
1065
1066         return err;
1067 }
1068
1069 static void mlx5e_free_icosq(struct mlx5e_icosq *sq)
1070 {
1071         mlx5e_free_icosq_db(sq);
1072         mlx5_wq_destroy(&sq->wq_ctrl);
1073 }
1074
1075 static void mlx5e_free_txqsq_db(struct mlx5e_txqsq *sq)
1076 {
1077         kfree(sq->db.wqe_info);
1078         kfree(sq->db.dma_fifo);
1079 }
1080
1081 static int mlx5e_alloc_txqsq_db(struct mlx5e_txqsq *sq, int numa)
1082 {
1083         int wq_sz = mlx5_wq_cyc_get_size(&sq->wq);
1084         int df_sz = wq_sz * MLX5_SEND_WQEBB_NUM_DS;
1085
1086         sq->db.dma_fifo = kzalloc_node(df_sz * sizeof(*sq->db.dma_fifo),
1087                                            GFP_KERNEL, numa);
1088         sq->db.wqe_info = kzalloc_node(wq_sz * sizeof(*sq->db.wqe_info),
1089                                            GFP_KERNEL, numa);
1090         if (!sq->db.dma_fifo || !sq->db.wqe_info) {
1091                 mlx5e_free_txqsq_db(sq);
1092                 return -ENOMEM;
1093         }
1094
1095         sq->dma_fifo_mask = df_sz - 1;
1096
1097         return 0;
1098 }
1099
1100 static int mlx5e_alloc_txqsq(struct mlx5e_channel *c,
1101                              int txq_ix,
1102                              struct mlx5e_params *params,
1103                              struct mlx5e_sq_param *param,
1104                              struct mlx5e_txqsq *sq)
1105 {
1106         void *sqc_wq               = MLX5_ADDR_OF(sqc, param->sqc, wq);
1107         struct mlx5_core_dev *mdev = c->mdev;
1108         int err;
1109
1110         sq->pdev      = c->pdev;
1111         sq->tstamp    = c->tstamp;
1112         sq->mkey_be   = c->mkey_be;
1113         sq->channel   = c;
1114         sq->txq_ix    = txq_ix;
1115         sq->uar_map   = mdev->mlx5e_res.bfreg.map;
1116         sq->max_inline      = params->tx_max_inline;
1117         sq->min_inline_mode = params->tx_min_inline_mode;
1118         if (MLX5_IPSEC_DEV(c->priv->mdev))
1119                 set_bit(MLX5E_SQ_STATE_IPSEC, &sq->state);
1120
1121         param->wq.db_numa_node = cpu_to_node(c->cpu);
1122         err = mlx5_wq_cyc_create(mdev, &param->wq, sqc_wq, &sq->wq, &sq->wq_ctrl);
1123         if (err)
1124                 return err;
1125         sq->wq.db    = &sq->wq.db[MLX5_SND_DBR];
1126
1127         err = mlx5e_alloc_txqsq_db(sq, cpu_to_node(c->cpu));
1128         if (err)
1129                 goto err_sq_wq_destroy;
1130
1131         sq->edge = (sq->wq.sz_m1 + 1) - MLX5_SEND_WQE_MAX_WQEBBS;
1132
1133         return 0;
1134
1135 err_sq_wq_destroy:
1136         mlx5_wq_destroy(&sq->wq_ctrl);
1137
1138         return err;
1139 }
1140
1141 static void mlx5e_free_txqsq(struct mlx5e_txqsq *sq)
1142 {
1143         mlx5e_free_txqsq_db(sq);
1144         mlx5_wq_destroy(&sq->wq_ctrl);
1145 }
1146
1147 struct mlx5e_create_sq_param {
1148         struct mlx5_wq_ctrl        *wq_ctrl;
1149         u32                         cqn;
1150         u32                         tisn;
1151         u8                          tis_lst_sz;
1152         u8                          min_inline_mode;
1153 };
1154
1155 static int mlx5e_create_sq(struct mlx5_core_dev *mdev,
1156                            struct mlx5e_sq_param *param,
1157                            struct mlx5e_create_sq_param *csp,
1158                            u32 *sqn)
1159 {
1160         void *in;
1161         void *sqc;
1162         void *wq;
1163         int inlen;
1164         int err;
1165
1166         inlen = MLX5_ST_SZ_BYTES(create_sq_in) +
1167                 sizeof(u64) * csp->wq_ctrl->buf.npages;
1168         in = kvzalloc(inlen, GFP_KERNEL);
1169         if (!in)
1170                 return -ENOMEM;
1171
1172         sqc = MLX5_ADDR_OF(create_sq_in, in, ctx);
1173         wq = MLX5_ADDR_OF(sqc, sqc, wq);
1174
1175         memcpy(sqc, param->sqc, sizeof(param->sqc));
1176         MLX5_SET(sqc,  sqc, tis_lst_sz, csp->tis_lst_sz);
1177         MLX5_SET(sqc,  sqc, tis_num_0, csp->tisn);
1178         MLX5_SET(sqc,  sqc, cqn, csp->cqn);
1179
1180         if (MLX5_CAP_ETH(mdev, wqe_inline_mode) == MLX5_CAP_INLINE_MODE_VPORT_CONTEXT)
1181                 MLX5_SET(sqc,  sqc, min_wqe_inline_mode, csp->min_inline_mode);
1182
1183         MLX5_SET(sqc,  sqc, state, MLX5_SQC_STATE_RST);
1184
1185         MLX5_SET(wq,   wq, wq_type,       MLX5_WQ_TYPE_CYCLIC);
1186         MLX5_SET(wq,   wq, uar_page,      mdev->mlx5e_res.bfreg.index);
1187         MLX5_SET(wq,   wq, log_wq_pg_sz,  csp->wq_ctrl->buf.page_shift -
1188                                           MLX5_ADAPTER_PAGE_SHIFT);
1189         MLX5_SET64(wq, wq, dbr_addr,      csp->wq_ctrl->db.dma);
1190
1191         mlx5_fill_page_array(&csp->wq_ctrl->buf, (__be64 *)MLX5_ADDR_OF(wq, wq, pas));
1192
1193         err = mlx5_core_create_sq(mdev, in, inlen, sqn);
1194
1195         kvfree(in);
1196
1197         return err;
1198 }
1199
1200 struct mlx5e_modify_sq_param {
1201         int curr_state;
1202         int next_state;
1203         bool rl_update;
1204         int rl_index;
1205 };
1206
1207 static int mlx5e_modify_sq(struct mlx5_core_dev *mdev, u32 sqn,
1208                            struct mlx5e_modify_sq_param *p)
1209 {
1210         void *in;
1211         void *sqc;
1212         int inlen;
1213         int err;
1214
1215         inlen = MLX5_ST_SZ_BYTES(modify_sq_in);
1216         in = kvzalloc(inlen, GFP_KERNEL);
1217         if (!in)
1218                 return -ENOMEM;
1219
1220         sqc = MLX5_ADDR_OF(modify_sq_in, in, ctx);
1221
1222         MLX5_SET(modify_sq_in, in, sq_state, p->curr_state);
1223         MLX5_SET(sqc, sqc, state, p->next_state);
1224         if (p->rl_update && p->next_state == MLX5_SQC_STATE_RDY) {
1225                 MLX5_SET64(modify_sq_in, in, modify_bitmask, 1);
1226                 MLX5_SET(sqc,  sqc, packet_pacing_rate_limit_index, p->rl_index);
1227         }
1228
1229         err = mlx5_core_modify_sq(mdev, sqn, in, inlen);
1230
1231         kvfree(in);
1232
1233         return err;
1234 }
1235
1236 static void mlx5e_destroy_sq(struct mlx5_core_dev *mdev, u32 sqn)
1237 {
1238         mlx5_core_destroy_sq(mdev, sqn);
1239 }
1240
1241 static int mlx5e_create_sq_rdy(struct mlx5_core_dev *mdev,
1242                                struct mlx5e_sq_param *param,
1243                                struct mlx5e_create_sq_param *csp,
1244                                u32 *sqn)
1245 {
1246         struct mlx5e_modify_sq_param msp = {0};
1247         int err;
1248
1249         err = mlx5e_create_sq(mdev, param, csp, sqn);
1250         if (err)
1251                 return err;
1252
1253         msp.curr_state = MLX5_SQC_STATE_RST;
1254         msp.next_state = MLX5_SQC_STATE_RDY;
1255         err = mlx5e_modify_sq(mdev, *sqn, &msp);
1256         if (err)
1257                 mlx5e_destroy_sq(mdev, *sqn);
1258
1259         return err;
1260 }
1261
1262 static int mlx5e_set_sq_maxrate(struct net_device *dev,
1263                                 struct mlx5e_txqsq *sq, u32 rate);
1264
1265 static int mlx5e_open_txqsq(struct mlx5e_channel *c,
1266                             u32 tisn,
1267                             int txq_ix,
1268                             struct mlx5e_params *params,
1269                             struct mlx5e_sq_param *param,
1270                             struct mlx5e_txqsq *sq)
1271 {
1272         struct mlx5e_create_sq_param csp = {};
1273         u32 tx_rate;
1274         int err;
1275
1276         err = mlx5e_alloc_txqsq(c, txq_ix, params, param, sq);
1277         if (err)
1278                 return err;
1279
1280         csp.tisn            = tisn;
1281         csp.tis_lst_sz      = 1;
1282         csp.cqn             = sq->cq.mcq.cqn;
1283         csp.wq_ctrl         = &sq->wq_ctrl;
1284         csp.min_inline_mode = sq->min_inline_mode;
1285         err = mlx5e_create_sq_rdy(c->mdev, param, &csp, &sq->sqn);
1286         if (err)
1287                 goto err_free_txqsq;
1288
1289         tx_rate = c->priv->tx_rates[sq->txq_ix];
1290         if (tx_rate)
1291                 mlx5e_set_sq_maxrate(c->netdev, sq, tx_rate);
1292
1293         return 0;
1294
1295 err_free_txqsq:
1296         clear_bit(MLX5E_SQ_STATE_ENABLED, &sq->state);
1297         mlx5e_free_txqsq(sq);
1298
1299         return err;
1300 }
1301
1302 static void mlx5e_activate_txqsq(struct mlx5e_txqsq *sq)
1303 {
1304         sq->txq = netdev_get_tx_queue(sq->channel->netdev, sq->txq_ix);
1305         set_bit(MLX5E_SQ_STATE_ENABLED, &sq->state);
1306         netdev_tx_reset_queue(sq->txq);
1307         netif_tx_start_queue(sq->txq);
1308 }
1309
1310 static inline void netif_tx_disable_queue(struct netdev_queue *txq)
1311 {
1312         __netif_tx_lock_bh(txq);
1313         netif_tx_stop_queue(txq);
1314         __netif_tx_unlock_bh(txq);
1315 }
1316
1317 static void mlx5e_deactivate_txqsq(struct mlx5e_txqsq *sq)
1318 {
1319         struct mlx5e_channel *c = sq->channel;
1320
1321         clear_bit(MLX5E_SQ_STATE_ENABLED, &sq->state);
1322         /* prevent netif_tx_wake_queue */
1323         napi_synchronize(&c->napi);
1324
1325         netif_tx_disable_queue(sq->txq);
1326
1327         /* last doorbell out, godspeed .. */
1328         if (mlx5e_wqc_has_room_for(&sq->wq, sq->cc, sq->pc, 1)) {
1329                 struct mlx5e_tx_wqe *nop;
1330
1331                 sq->db.wqe_info[(sq->pc & sq->wq.sz_m1)].skb = NULL;
1332                 nop = mlx5e_post_nop(&sq->wq, sq->sqn, &sq->pc);
1333                 mlx5e_notify_hw(&sq->wq, sq->pc, sq->uar_map, &nop->ctrl);
1334         }
1335 }
1336
1337 static void mlx5e_close_txqsq(struct mlx5e_txqsq *sq)
1338 {
1339         struct mlx5e_channel *c = sq->channel;
1340         struct mlx5_core_dev *mdev = c->mdev;
1341
1342         mlx5e_destroy_sq(mdev, sq->sqn);
1343         if (sq->rate_limit)
1344                 mlx5_rl_remove_rate(mdev, sq->rate_limit);
1345         mlx5e_free_txqsq_descs(sq);
1346         mlx5e_free_txqsq(sq);
1347 }
1348
1349 static int mlx5e_open_icosq(struct mlx5e_channel *c,
1350                             struct mlx5e_params *params,
1351                             struct mlx5e_sq_param *param,
1352                             struct mlx5e_icosq *sq)
1353 {
1354         struct mlx5e_create_sq_param csp = {};
1355         int err;
1356
1357         err = mlx5e_alloc_icosq(c, param, sq);
1358         if (err)
1359                 return err;
1360
1361         csp.cqn             = sq->cq.mcq.cqn;
1362         csp.wq_ctrl         = &sq->wq_ctrl;
1363         csp.min_inline_mode = params->tx_min_inline_mode;
1364         set_bit(MLX5E_SQ_STATE_ENABLED, &sq->state);
1365         err = mlx5e_create_sq_rdy(c->mdev, param, &csp, &sq->sqn);
1366         if (err)
1367                 goto err_free_icosq;
1368
1369         return 0;
1370
1371 err_free_icosq:
1372         clear_bit(MLX5E_SQ_STATE_ENABLED, &sq->state);
1373         mlx5e_free_icosq(sq);
1374
1375         return err;
1376 }
1377
1378 static void mlx5e_close_icosq(struct mlx5e_icosq *sq)
1379 {
1380         struct mlx5e_channel *c = sq->channel;
1381
1382         clear_bit(MLX5E_SQ_STATE_ENABLED, &sq->state);
1383         napi_synchronize(&c->napi);
1384
1385         mlx5e_destroy_sq(c->mdev, sq->sqn);
1386         mlx5e_free_icosq(sq);
1387 }
1388
1389 static int mlx5e_open_xdpsq(struct mlx5e_channel *c,
1390                             struct mlx5e_params *params,
1391                             struct mlx5e_sq_param *param,
1392                             struct mlx5e_xdpsq *sq)
1393 {
1394         unsigned int ds_cnt = MLX5E_XDP_TX_DS_COUNT;
1395         struct mlx5e_create_sq_param csp = {};
1396         unsigned int inline_hdr_sz = 0;
1397         int err;
1398         int i;
1399
1400         err = mlx5e_alloc_xdpsq(c, params, param, sq);
1401         if (err)
1402                 return err;
1403
1404         csp.tis_lst_sz      = 1;
1405         csp.tisn            = c->priv->tisn[0]; /* tc = 0 */
1406         csp.cqn             = sq->cq.mcq.cqn;
1407         csp.wq_ctrl         = &sq->wq_ctrl;
1408         csp.min_inline_mode = sq->min_inline_mode;
1409         set_bit(MLX5E_SQ_STATE_ENABLED, &sq->state);
1410         err = mlx5e_create_sq_rdy(c->mdev, param, &csp, &sq->sqn);
1411         if (err)
1412                 goto err_free_xdpsq;
1413
1414         if (sq->min_inline_mode != MLX5_INLINE_MODE_NONE) {
1415                 inline_hdr_sz = MLX5E_XDP_MIN_INLINE;
1416                 ds_cnt++;
1417         }
1418
1419         /* Pre initialize fixed WQE fields */
1420         for (i = 0; i < mlx5_wq_cyc_get_size(&sq->wq); i++) {
1421                 struct mlx5e_tx_wqe      *wqe  = mlx5_wq_cyc_get_wqe(&sq->wq, i);
1422                 struct mlx5_wqe_ctrl_seg *cseg = &wqe->ctrl;
1423                 struct mlx5_wqe_eth_seg  *eseg = &wqe->eth;
1424                 struct mlx5_wqe_data_seg *dseg;
1425
1426                 cseg->qpn_ds = cpu_to_be32((sq->sqn << 8) | ds_cnt);
1427                 eseg->inline_hdr.sz = cpu_to_be16(inline_hdr_sz);
1428
1429                 dseg = (struct mlx5_wqe_data_seg *)cseg + (ds_cnt - 1);
1430                 dseg->lkey = sq->mkey_be;
1431         }
1432
1433         return 0;
1434
1435 err_free_xdpsq:
1436         clear_bit(MLX5E_SQ_STATE_ENABLED, &sq->state);
1437         mlx5e_free_xdpsq(sq);
1438
1439         return err;
1440 }
1441
1442 static void mlx5e_close_xdpsq(struct mlx5e_xdpsq *sq)
1443 {
1444         struct mlx5e_channel *c = sq->channel;
1445
1446         clear_bit(MLX5E_SQ_STATE_ENABLED, &sq->state);
1447         napi_synchronize(&c->napi);
1448
1449         mlx5e_destroy_sq(c->mdev, sq->sqn);
1450         mlx5e_free_xdpsq_descs(sq);
1451         mlx5e_free_xdpsq(sq);
1452 }
1453
1454 static int mlx5e_alloc_cq_common(struct mlx5_core_dev *mdev,
1455                                  struct mlx5e_cq_param *param,
1456                                  struct mlx5e_cq *cq)
1457 {
1458         struct mlx5_core_cq *mcq = &cq->mcq;
1459         int eqn_not_used;
1460         unsigned int irqn;
1461         int err;
1462         u32 i;
1463
1464         err = mlx5_cqwq_create(mdev, &param->wq, param->cqc, &cq->wq,
1465                                &cq->wq_ctrl);
1466         if (err)
1467                 return err;
1468
1469         mlx5_vector2eqn(mdev, param->eq_ix, &eqn_not_used, &irqn);
1470
1471         mcq->cqe_sz     = 64;
1472         mcq->set_ci_db  = cq->wq_ctrl.db.db;
1473         mcq->arm_db     = cq->wq_ctrl.db.db + 1;
1474         *mcq->set_ci_db = 0;
1475         *mcq->arm_db    = 0;
1476         mcq->vector     = param->eq_ix;
1477         mcq->comp       = mlx5e_completion_event;
1478         mcq->event      = mlx5e_cq_error_event;
1479         mcq->irqn       = irqn;
1480
1481         for (i = 0; i < mlx5_cqwq_get_size(&cq->wq); i++) {
1482                 struct mlx5_cqe64 *cqe = mlx5_cqwq_get_wqe(&cq->wq, i);
1483
1484                 cqe->op_own = 0xf1;
1485         }
1486
1487         cq->mdev = mdev;
1488
1489         return 0;
1490 }
1491
1492 static int mlx5e_alloc_cq(struct mlx5e_channel *c,
1493                           struct mlx5e_cq_param *param,
1494                           struct mlx5e_cq *cq)
1495 {
1496         struct mlx5_core_dev *mdev = c->priv->mdev;
1497         int err;
1498
1499         param->wq.buf_numa_node = cpu_to_node(c->cpu);
1500         param->wq.db_numa_node  = cpu_to_node(c->cpu);
1501         param->eq_ix   = c->ix;
1502
1503         err = mlx5e_alloc_cq_common(mdev, param, cq);
1504
1505         cq->napi    = &c->napi;
1506         cq->channel = c;
1507
1508         return err;
1509 }
1510
1511 static void mlx5e_free_cq(struct mlx5e_cq *cq)
1512 {
1513         mlx5_cqwq_destroy(&cq->wq_ctrl);
1514 }
1515
1516 static int mlx5e_create_cq(struct mlx5e_cq *cq, struct mlx5e_cq_param *param)
1517 {
1518         struct mlx5_core_dev *mdev = cq->mdev;
1519         struct mlx5_core_cq *mcq = &cq->mcq;
1520
1521         void *in;
1522         void *cqc;
1523         int inlen;
1524         unsigned int irqn_not_used;
1525         int eqn;
1526         int err;
1527
1528         inlen = MLX5_ST_SZ_BYTES(create_cq_in) +
1529                 sizeof(u64) * cq->wq_ctrl.frag_buf.npages;
1530         in = kvzalloc(inlen, GFP_KERNEL);
1531         if (!in)
1532                 return -ENOMEM;
1533
1534         cqc = MLX5_ADDR_OF(create_cq_in, in, cq_context);
1535
1536         memcpy(cqc, param->cqc, sizeof(param->cqc));
1537
1538         mlx5_fill_page_frag_array(&cq->wq_ctrl.frag_buf,
1539                                   (__be64 *)MLX5_ADDR_OF(create_cq_in, in, pas));
1540
1541         mlx5_vector2eqn(mdev, param->eq_ix, &eqn, &irqn_not_used);
1542
1543         MLX5_SET(cqc,   cqc, cq_period_mode, param->cq_period_mode);
1544         MLX5_SET(cqc,   cqc, c_eqn,         eqn);
1545         MLX5_SET(cqc,   cqc, uar_page,      mdev->priv.uar->index);
1546         MLX5_SET(cqc,   cqc, log_page_size, cq->wq_ctrl.frag_buf.page_shift -
1547                                             MLX5_ADAPTER_PAGE_SHIFT);
1548         MLX5_SET64(cqc, cqc, dbr_addr,      cq->wq_ctrl.db.dma);
1549
1550         err = mlx5_core_create_cq(mdev, mcq, in, inlen);
1551
1552         kvfree(in);
1553
1554         if (err)
1555                 return err;
1556
1557         mlx5e_cq_arm(cq);
1558
1559         return 0;
1560 }
1561
1562 static void mlx5e_destroy_cq(struct mlx5e_cq *cq)
1563 {
1564         mlx5_core_destroy_cq(cq->mdev, &cq->mcq);
1565 }
1566
1567 static int mlx5e_open_cq(struct mlx5e_channel *c,
1568                          struct mlx5e_cq_moder moder,
1569                          struct mlx5e_cq_param *param,
1570                          struct mlx5e_cq *cq)
1571 {
1572         struct mlx5_core_dev *mdev = c->mdev;
1573         int err;
1574
1575         err = mlx5e_alloc_cq(c, param, cq);
1576         if (err)
1577                 return err;
1578
1579         err = mlx5e_create_cq(cq, param);
1580         if (err)
1581                 goto err_free_cq;
1582
1583         if (MLX5_CAP_GEN(mdev, cq_moderation))
1584                 mlx5_core_modify_cq_moderation(mdev, &cq->mcq, moder.usec, moder.pkts);
1585         return 0;
1586
1587 err_free_cq:
1588         mlx5e_free_cq(cq);
1589
1590         return err;
1591 }
1592
1593 static void mlx5e_close_cq(struct mlx5e_cq *cq)
1594 {
1595         mlx5e_destroy_cq(cq);
1596         mlx5e_free_cq(cq);
1597 }
1598
1599 static int mlx5e_get_cpu(struct mlx5e_priv *priv, int ix)
1600 {
1601         return cpumask_first(priv->mdev->priv.irq_info[ix].mask);
1602 }
1603
1604 static int mlx5e_open_tx_cqs(struct mlx5e_channel *c,
1605                              struct mlx5e_params *params,
1606                              struct mlx5e_channel_param *cparam)
1607 {
1608         int err;
1609         int tc;
1610
1611         for (tc = 0; tc < c->num_tc; tc++) {
1612                 err = mlx5e_open_cq(c, params->tx_cq_moderation,
1613                                     &cparam->tx_cq, &c->sq[tc].cq);
1614                 if (err)
1615                         goto err_close_tx_cqs;
1616         }
1617
1618         return 0;
1619
1620 err_close_tx_cqs:
1621         for (tc--; tc >= 0; tc--)
1622                 mlx5e_close_cq(&c->sq[tc].cq);
1623
1624         return err;
1625 }
1626
1627 static void mlx5e_close_tx_cqs(struct mlx5e_channel *c)
1628 {
1629         int tc;
1630
1631         for (tc = 0; tc < c->num_tc; tc++)
1632                 mlx5e_close_cq(&c->sq[tc].cq);
1633 }
1634
1635 static int mlx5e_open_sqs(struct mlx5e_channel *c,
1636                           struct mlx5e_params *params,
1637                           struct mlx5e_channel_param *cparam)
1638 {
1639         int err;
1640         int tc;
1641
1642         for (tc = 0; tc < params->num_tc; tc++) {
1643                 int txq_ix = c->ix + tc * params->num_channels;
1644
1645                 err = mlx5e_open_txqsq(c, c->priv->tisn[tc], txq_ix,
1646                                        params, &cparam->sq, &c->sq[tc]);
1647                 if (err)
1648                         goto err_close_sqs;
1649         }
1650
1651         return 0;
1652
1653 err_close_sqs:
1654         for (tc--; tc >= 0; tc--)
1655                 mlx5e_close_txqsq(&c->sq[tc]);
1656
1657         return err;
1658 }
1659
1660 static void mlx5e_close_sqs(struct mlx5e_channel *c)
1661 {
1662         int tc;
1663
1664         for (tc = 0; tc < c->num_tc; tc++)
1665                 mlx5e_close_txqsq(&c->sq[tc]);
1666 }
1667
1668 static int mlx5e_set_sq_maxrate(struct net_device *dev,
1669                                 struct mlx5e_txqsq *sq, u32 rate)
1670 {
1671         struct mlx5e_priv *priv = netdev_priv(dev);
1672         struct mlx5_core_dev *mdev = priv->mdev;
1673         struct mlx5e_modify_sq_param msp = {0};
1674         u16 rl_index = 0;
1675         int err;
1676
1677         if (rate == sq->rate_limit)
1678                 /* nothing to do */
1679                 return 0;
1680
1681         if (sq->rate_limit)
1682                 /* remove current rl index to free space to next ones */
1683                 mlx5_rl_remove_rate(mdev, sq->rate_limit);
1684
1685         sq->rate_limit = 0;
1686
1687         if (rate) {
1688                 err = mlx5_rl_add_rate(mdev, rate, &rl_index);
1689                 if (err) {
1690                         netdev_err(dev, "Failed configuring rate %u: %d\n",
1691                                    rate, err);
1692                         return err;
1693                 }
1694         }
1695
1696         msp.curr_state = MLX5_SQC_STATE_RDY;
1697         msp.next_state = MLX5_SQC_STATE_RDY;
1698         msp.rl_index   = rl_index;
1699         msp.rl_update  = true;
1700         err = mlx5e_modify_sq(mdev, sq->sqn, &msp);
1701         if (err) {
1702                 netdev_err(dev, "Failed configuring rate %u: %d\n",
1703                            rate, err);
1704                 /* remove the rate from the table */
1705                 if (rate)
1706                         mlx5_rl_remove_rate(mdev, rate);
1707                 return err;
1708         }
1709
1710         sq->rate_limit = rate;
1711         return 0;
1712 }
1713
1714 static int mlx5e_set_tx_maxrate(struct net_device *dev, int index, u32 rate)
1715 {
1716         struct mlx5e_priv *priv = netdev_priv(dev);
1717         struct mlx5_core_dev *mdev = priv->mdev;
1718         struct mlx5e_txqsq *sq = priv->txq2sq[index];
1719         int err = 0;
1720
1721         if (!mlx5_rl_is_supported(mdev)) {
1722                 netdev_err(dev, "Rate limiting is not supported on this device\n");
1723                 return -EINVAL;
1724         }
1725
1726         /* rate is given in Mb/sec, HW config is in Kb/sec */
1727         rate = rate << 10;
1728
1729         /* Check whether rate in valid range, 0 is always valid */
1730         if (rate && !mlx5_rl_is_in_range(mdev, rate)) {
1731                 netdev_err(dev, "TX rate %u, is not in range\n", rate);
1732                 return -ERANGE;
1733         }
1734
1735         mutex_lock(&priv->state_lock);
1736         if (test_bit(MLX5E_STATE_OPENED, &priv->state))
1737                 err = mlx5e_set_sq_maxrate(dev, sq, rate);
1738         if (!err)
1739                 priv->tx_rates[index] = rate;
1740         mutex_unlock(&priv->state_lock);
1741
1742         return err;
1743 }
1744
1745 static int mlx5e_open_channel(struct mlx5e_priv *priv, int ix,
1746                               struct mlx5e_params *params,
1747                               struct mlx5e_channel_param *cparam,
1748                               struct mlx5e_channel **cp)
1749 {
1750         struct mlx5e_cq_moder icocq_moder = {0, 0};
1751         struct net_device *netdev = priv->netdev;
1752         int cpu = mlx5e_get_cpu(priv, ix);
1753         struct mlx5e_channel *c;
1754         int err;
1755
1756         c = kzalloc_node(sizeof(*c), GFP_KERNEL, cpu_to_node(cpu));
1757         if (!c)
1758                 return -ENOMEM;
1759
1760         c->priv     = priv;
1761         c->mdev     = priv->mdev;
1762         c->tstamp   = &priv->tstamp;
1763         c->ix       = ix;
1764         c->cpu      = cpu;
1765         c->pdev     = &priv->mdev->pdev->dev;
1766         c->netdev   = priv->netdev;
1767         c->mkey_be  = cpu_to_be32(priv->mdev->mlx5e_res.mkey.key);
1768         c->num_tc   = params->num_tc;
1769         c->xdp      = !!params->xdp_prog;
1770
1771         netif_napi_add(netdev, &c->napi, mlx5e_napi_poll, 64);
1772
1773         err = mlx5e_open_cq(c, icocq_moder, &cparam->icosq_cq, &c->icosq.cq);
1774         if (err)
1775                 goto err_napi_del;
1776
1777         err = mlx5e_open_tx_cqs(c, params, cparam);
1778         if (err)
1779                 goto err_close_icosq_cq;
1780
1781         err = mlx5e_open_cq(c, params->rx_cq_moderation, &cparam->rx_cq, &c->rq.cq);
1782         if (err)
1783                 goto err_close_tx_cqs;
1784
1785         /* XDP SQ CQ params are same as normal TXQ sq CQ params */
1786         err = c->xdp ? mlx5e_open_cq(c, params->tx_cq_moderation,
1787                                      &cparam->tx_cq, &c->rq.xdpsq.cq) : 0;
1788         if (err)
1789                 goto err_close_rx_cq;
1790
1791         napi_enable(&c->napi);
1792
1793         err = mlx5e_open_icosq(c, params, &cparam->icosq, &c->icosq);
1794         if (err)
1795                 goto err_disable_napi;
1796
1797         err = mlx5e_open_sqs(c, params, cparam);
1798         if (err)
1799                 goto err_close_icosq;
1800
1801         err = c->xdp ? mlx5e_open_xdpsq(c, params, &cparam->xdp_sq, &c->rq.xdpsq) : 0;
1802         if (err)
1803                 goto err_close_sqs;
1804
1805         err = mlx5e_open_rq(c, params, &cparam->rq, &c->rq);
1806         if (err)
1807                 goto err_close_xdp_sq;
1808
1809         *cp = c;
1810
1811         return 0;
1812 err_close_xdp_sq:
1813         if (c->xdp)
1814                 mlx5e_close_xdpsq(&c->rq.xdpsq);
1815
1816 err_close_sqs:
1817         mlx5e_close_sqs(c);
1818
1819 err_close_icosq:
1820         mlx5e_close_icosq(&c->icosq);
1821
1822 err_disable_napi:
1823         napi_disable(&c->napi);
1824         if (c->xdp)
1825                 mlx5e_close_cq(&c->rq.xdpsq.cq);
1826
1827 err_close_rx_cq:
1828         mlx5e_close_cq(&c->rq.cq);
1829
1830 err_close_tx_cqs:
1831         mlx5e_close_tx_cqs(c);
1832
1833 err_close_icosq_cq:
1834         mlx5e_close_cq(&c->icosq.cq);
1835
1836 err_napi_del:
1837         netif_napi_del(&c->napi);
1838         kfree(c);
1839
1840         return err;
1841 }
1842
1843 static void mlx5e_activate_channel(struct mlx5e_channel *c)
1844 {
1845         int tc;
1846
1847         for (tc = 0; tc < c->num_tc; tc++)
1848                 mlx5e_activate_txqsq(&c->sq[tc]);
1849         mlx5e_activate_rq(&c->rq);
1850         netif_set_xps_queue(c->netdev, get_cpu_mask(c->cpu), c->ix);
1851 }
1852
1853 static void mlx5e_deactivate_channel(struct mlx5e_channel *c)
1854 {
1855         int tc;
1856
1857         mlx5e_deactivate_rq(&c->rq);
1858         for (tc = 0; tc < c->num_tc; tc++)
1859                 mlx5e_deactivate_txqsq(&c->sq[tc]);
1860 }
1861
1862 static void mlx5e_close_channel(struct mlx5e_channel *c)
1863 {
1864         mlx5e_close_rq(&c->rq);
1865         if (c->xdp)
1866                 mlx5e_close_xdpsq(&c->rq.xdpsq);
1867         mlx5e_close_sqs(c);
1868         mlx5e_close_icosq(&c->icosq);
1869         napi_disable(&c->napi);
1870         if (c->xdp)
1871                 mlx5e_close_cq(&c->rq.xdpsq.cq);
1872         mlx5e_close_cq(&c->rq.cq);
1873         mlx5e_close_tx_cqs(c);
1874         mlx5e_close_cq(&c->icosq.cq);
1875         netif_napi_del(&c->napi);
1876
1877         kfree(c);
1878 }
1879
1880 static void mlx5e_build_rq_param(struct mlx5e_priv *priv,
1881                                  struct mlx5e_params *params,
1882                                  struct mlx5e_rq_param *param)
1883 {
1884         void *rqc = param->rqc;
1885         void *wq = MLX5_ADDR_OF(rqc, rqc, wq);
1886
1887         switch (params->rq_wq_type) {
1888         case MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ:
1889                 MLX5_SET(wq, wq, log_wqe_num_of_strides, params->mpwqe_log_num_strides - 9);
1890                 MLX5_SET(wq, wq, log_wqe_stride_size, params->mpwqe_log_stride_sz - 6);
1891                 MLX5_SET(wq, wq, wq_type, MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ);
1892                 break;
1893         default: /* MLX5_WQ_TYPE_LINKED_LIST */
1894                 MLX5_SET(wq, wq, wq_type, MLX5_WQ_TYPE_LINKED_LIST);
1895         }
1896
1897         MLX5_SET(wq, wq, end_padding_mode, MLX5_WQ_END_PAD_MODE_ALIGN);
1898         MLX5_SET(wq, wq, log_wq_stride,    ilog2(sizeof(struct mlx5e_rx_wqe)));
1899         MLX5_SET(wq, wq, log_wq_sz,        params->log_rq_size);
1900         MLX5_SET(wq, wq, pd,               priv->mdev->mlx5e_res.pdn);
1901         MLX5_SET(rqc, rqc, counter_set_id, priv->q_counter);
1902         MLX5_SET(rqc, rqc, vsd,            params->vlan_strip_disable);
1903         MLX5_SET(rqc, rqc, scatter_fcs,    params->scatter_fcs_en);
1904
1905         param->wq.buf_numa_node = dev_to_node(&priv->mdev->pdev->dev);
1906         param->wq.linear = 1;
1907 }
1908
1909 static void mlx5e_build_drop_rq_param(struct mlx5e_rq_param *param)
1910 {
1911         void *rqc = param->rqc;
1912         void *wq = MLX5_ADDR_OF(rqc, rqc, wq);
1913
1914         MLX5_SET(wq, wq, wq_type, MLX5_WQ_TYPE_LINKED_LIST);
1915         MLX5_SET(wq, wq, log_wq_stride,    ilog2(sizeof(struct mlx5e_rx_wqe)));
1916 }
1917
1918 static void mlx5e_build_sq_param_common(struct mlx5e_priv *priv,
1919                                         struct mlx5e_sq_param *param)
1920 {
1921         void *sqc = param->sqc;
1922         void *wq = MLX5_ADDR_OF(sqc, sqc, wq);
1923
1924         MLX5_SET(wq, wq, log_wq_stride, ilog2(MLX5_SEND_WQE_BB));
1925         MLX5_SET(wq, wq, pd,            priv->mdev->mlx5e_res.pdn);
1926
1927         param->wq.buf_numa_node = dev_to_node(&priv->mdev->pdev->dev);
1928 }
1929
1930 static void mlx5e_build_sq_param(struct mlx5e_priv *priv,
1931                                  struct mlx5e_params *params,
1932                                  struct mlx5e_sq_param *param)
1933 {
1934         void *sqc = param->sqc;
1935         void *wq = MLX5_ADDR_OF(sqc, sqc, wq);
1936
1937         mlx5e_build_sq_param_common(priv, param);
1938         MLX5_SET(wq, wq, log_wq_sz, params->log_sq_size);
1939         MLX5_SET(sqc, sqc, allow_swp, !!MLX5_IPSEC_DEV(priv->mdev));
1940 }
1941
1942 static void mlx5e_build_common_cq_param(struct mlx5e_priv *priv,
1943                                         struct mlx5e_cq_param *param)
1944 {
1945         void *cqc = param->cqc;
1946
1947         MLX5_SET(cqc, cqc, uar_page, priv->mdev->priv.uar->index);
1948 }
1949
1950 static void mlx5e_build_rx_cq_param(struct mlx5e_priv *priv,
1951                                     struct mlx5e_params *params,
1952                                     struct mlx5e_cq_param *param)
1953 {
1954         void *cqc = param->cqc;
1955         u8 log_cq_size;
1956
1957         switch (params->rq_wq_type) {
1958         case MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ:
1959                 log_cq_size = params->log_rq_size + params->mpwqe_log_num_strides;
1960                 break;
1961         default: /* MLX5_WQ_TYPE_LINKED_LIST */
1962                 log_cq_size = params->log_rq_size;
1963         }
1964
1965         MLX5_SET(cqc, cqc, log_cq_size, log_cq_size);
1966         if (MLX5E_GET_PFLAG(params, MLX5E_PFLAG_RX_CQE_COMPRESS)) {
1967                 MLX5_SET(cqc, cqc, mini_cqe_res_format, MLX5_CQE_FORMAT_CSUM);
1968                 MLX5_SET(cqc, cqc, cqe_comp_en, 1);
1969         }
1970
1971         mlx5e_build_common_cq_param(priv, param);
1972 }
1973
1974 static void mlx5e_build_tx_cq_param(struct mlx5e_priv *priv,
1975                                     struct mlx5e_params *params,
1976                                     struct mlx5e_cq_param *param)
1977 {
1978         void *cqc = param->cqc;
1979
1980         MLX5_SET(cqc, cqc, log_cq_size, params->log_sq_size);
1981
1982         mlx5e_build_common_cq_param(priv, param);
1983
1984         param->cq_period_mode = MLX5_CQ_PERIOD_MODE_START_FROM_EQE;
1985 }
1986
1987 static void mlx5e_build_ico_cq_param(struct mlx5e_priv *priv,
1988                                      u8 log_wq_size,
1989                                      struct mlx5e_cq_param *param)
1990 {
1991         void *cqc = param->cqc;
1992
1993         MLX5_SET(cqc, cqc, log_cq_size, log_wq_size);
1994
1995         mlx5e_build_common_cq_param(priv, param);
1996
1997         param->cq_period_mode = MLX5_CQ_PERIOD_MODE_START_FROM_EQE;
1998 }
1999
2000 static void mlx5e_build_icosq_param(struct mlx5e_priv *priv,
2001                                     u8 log_wq_size,
2002                                     struct mlx5e_sq_param *param)
2003 {
2004         void *sqc = param->sqc;
2005         void *wq = MLX5_ADDR_OF(sqc, sqc, wq);
2006
2007         mlx5e_build_sq_param_common(priv, param);
2008
2009         MLX5_SET(wq, wq, log_wq_sz, log_wq_size);
2010         MLX5_SET(sqc, sqc, reg_umr, MLX5_CAP_ETH(priv->mdev, reg_umr_sq));
2011 }
2012
2013 static void mlx5e_build_xdpsq_param(struct mlx5e_priv *priv,
2014                                     struct mlx5e_params *params,
2015                                     struct mlx5e_sq_param *param)
2016 {
2017         void *sqc = param->sqc;
2018         void *wq = MLX5_ADDR_OF(sqc, sqc, wq);
2019
2020         mlx5e_build_sq_param_common(priv, param);
2021         MLX5_SET(wq, wq, log_wq_sz, params->log_sq_size);
2022 }
2023
2024 static void mlx5e_build_channel_param(struct mlx5e_priv *priv,
2025                                       struct mlx5e_params *params,
2026                                       struct mlx5e_channel_param *cparam)
2027 {
2028         u8 icosq_log_wq_sz = MLX5E_PARAMS_MINIMUM_LOG_SQ_SIZE;
2029
2030         mlx5e_build_rq_param(priv, params, &cparam->rq);
2031         mlx5e_build_sq_param(priv, params, &cparam->sq);
2032         mlx5e_build_xdpsq_param(priv, params, &cparam->xdp_sq);
2033         mlx5e_build_icosq_param(priv, icosq_log_wq_sz, &cparam->icosq);
2034         mlx5e_build_rx_cq_param(priv, params, &cparam->rx_cq);
2035         mlx5e_build_tx_cq_param(priv, params, &cparam->tx_cq);
2036         mlx5e_build_ico_cq_param(priv, icosq_log_wq_sz, &cparam->icosq_cq);
2037 }
2038
2039 int mlx5e_open_channels(struct mlx5e_priv *priv,
2040                         struct mlx5e_channels *chs)
2041 {
2042         struct mlx5e_channel_param *cparam;
2043         int err = -ENOMEM;
2044         int i;
2045
2046         chs->num = chs->params.num_channels;
2047
2048         chs->c = kcalloc(chs->num, sizeof(struct mlx5e_channel *), GFP_KERNEL);
2049         cparam = kzalloc(sizeof(struct mlx5e_channel_param), GFP_KERNEL);
2050         if (!chs->c || !cparam)
2051                 goto err_free;
2052
2053         mlx5e_build_channel_param(priv, &chs->params, cparam);
2054         for (i = 0; i < chs->num; i++) {
2055                 err = mlx5e_open_channel(priv, i, &chs->params, cparam, &chs->c[i]);
2056                 if (err)
2057                         goto err_close_channels;
2058         }
2059
2060         kfree(cparam);
2061         return 0;
2062
2063 err_close_channels:
2064         for (i--; i >= 0; i--)
2065                 mlx5e_close_channel(chs->c[i]);
2066
2067 err_free:
2068         kfree(chs->c);
2069         kfree(cparam);
2070         chs->num = 0;
2071         return err;
2072 }
2073
2074 static void mlx5e_activate_channels(struct mlx5e_channels *chs)
2075 {
2076         int i;
2077
2078         for (i = 0; i < chs->num; i++)
2079                 mlx5e_activate_channel(chs->c[i]);
2080 }
2081
2082 static int mlx5e_wait_channels_min_rx_wqes(struct mlx5e_channels *chs)
2083 {
2084         int err = 0;
2085         int i;
2086
2087         for (i = 0; i < chs->num; i++) {
2088                 err = mlx5e_wait_for_min_rx_wqes(&chs->c[i]->rq);
2089                 if (err)
2090                         break;
2091         }
2092
2093         return err;
2094 }
2095
2096 static void mlx5e_deactivate_channels(struct mlx5e_channels *chs)
2097 {
2098         int i;
2099
2100         for (i = 0; i < chs->num; i++)
2101                 mlx5e_deactivate_channel(chs->c[i]);
2102 }
2103
2104 void mlx5e_close_channels(struct mlx5e_channels *chs)
2105 {
2106         int i;
2107
2108         for (i = 0; i < chs->num; i++)
2109                 mlx5e_close_channel(chs->c[i]);
2110
2111         kfree(chs->c);
2112         chs->num = 0;
2113 }
2114
2115 static int
2116 mlx5e_create_rqt(struct mlx5e_priv *priv, int sz, struct mlx5e_rqt *rqt)
2117 {
2118         struct mlx5_core_dev *mdev = priv->mdev;
2119         void *rqtc;
2120         int inlen;
2121         int err;
2122         u32 *in;
2123         int i;
2124
2125         inlen = MLX5_ST_SZ_BYTES(create_rqt_in) + sizeof(u32) * sz;
2126         in = kvzalloc(inlen, GFP_KERNEL);
2127         if (!in)
2128                 return -ENOMEM;
2129
2130         rqtc = MLX5_ADDR_OF(create_rqt_in, in, rqt_context);
2131
2132         MLX5_SET(rqtc, rqtc, rqt_actual_size, sz);
2133         MLX5_SET(rqtc, rqtc, rqt_max_size, sz);
2134
2135         for (i = 0; i < sz; i++)
2136                 MLX5_SET(rqtc, rqtc, rq_num[i], priv->drop_rq.rqn);
2137
2138         err = mlx5_core_create_rqt(mdev, in, inlen, &rqt->rqtn);
2139         if (!err)
2140                 rqt->enabled = true;
2141
2142         kvfree(in);
2143         return err;
2144 }
2145
2146 void mlx5e_destroy_rqt(struct mlx5e_priv *priv, struct mlx5e_rqt *rqt)
2147 {
2148         rqt->enabled = false;
2149         mlx5_core_destroy_rqt(priv->mdev, rqt->rqtn);
2150 }
2151
2152 int mlx5e_create_indirect_rqt(struct mlx5e_priv *priv)
2153 {
2154         struct mlx5e_rqt *rqt = &priv->indir_rqt;
2155         int err;
2156
2157         err = mlx5e_create_rqt(priv, MLX5E_INDIR_RQT_SIZE, rqt);
2158         if (err)
2159                 mlx5_core_warn(priv->mdev, "create indirect rqts failed, %d\n", err);
2160         return err;
2161 }
2162
2163 int mlx5e_create_direct_rqts(struct mlx5e_priv *priv)
2164 {
2165         struct mlx5e_rqt *rqt;
2166         int err;
2167         int ix;
2168
2169         for (ix = 0; ix < priv->profile->max_nch(priv->mdev); ix++) {
2170                 rqt = &priv->direct_tir[ix].rqt;
2171                 err = mlx5e_create_rqt(priv, 1 /*size */, rqt);
2172                 if (err)
2173                         goto err_destroy_rqts;
2174         }
2175
2176         return 0;
2177
2178 err_destroy_rqts:
2179         mlx5_core_warn(priv->mdev, "create direct rqts failed, %d\n", err);
2180         for (ix--; ix >= 0; ix--)
2181                 mlx5e_destroy_rqt(priv, &priv->direct_tir[ix].rqt);
2182
2183         return err;
2184 }
2185
2186 void mlx5e_destroy_direct_rqts(struct mlx5e_priv *priv)
2187 {
2188         int i;
2189
2190         for (i = 0; i < priv->profile->max_nch(priv->mdev); i++)
2191                 mlx5e_destroy_rqt(priv, &priv->direct_tir[i].rqt);
2192 }
2193
2194 static int mlx5e_rx_hash_fn(int hfunc)
2195 {
2196         return (hfunc == ETH_RSS_HASH_TOP) ?
2197                MLX5_RX_HASH_FN_TOEPLITZ :
2198                MLX5_RX_HASH_FN_INVERTED_XOR8;
2199 }
2200
2201 static int mlx5e_bits_invert(unsigned long a, int size)
2202 {
2203         int inv = 0;
2204         int i;
2205
2206         for (i = 0; i < size; i++)
2207                 inv |= (test_bit(size - i - 1, &a) ? 1 : 0) << i;
2208
2209         return inv;
2210 }
2211
2212 static void mlx5e_fill_rqt_rqns(struct mlx5e_priv *priv, int sz,
2213                                 struct mlx5e_redirect_rqt_param rrp, void *rqtc)
2214 {
2215         int i;
2216
2217         for (i = 0; i < sz; i++) {
2218                 u32 rqn;
2219
2220                 if (rrp.is_rss) {
2221                         int ix = i;
2222
2223                         if (rrp.rss.hfunc == ETH_RSS_HASH_XOR)
2224                                 ix = mlx5e_bits_invert(i, ilog2(sz));
2225
2226                         ix = priv->channels.params.indirection_rqt[ix];
2227                         rqn = rrp.rss.channels->c[ix]->rq.rqn;
2228                 } else {
2229                         rqn = rrp.rqn;
2230                 }
2231                 MLX5_SET(rqtc, rqtc, rq_num[i], rqn);
2232         }
2233 }
2234
2235 int mlx5e_redirect_rqt(struct mlx5e_priv *priv, u32 rqtn, int sz,
2236                        struct mlx5e_redirect_rqt_param rrp)
2237 {
2238         struct mlx5_core_dev *mdev = priv->mdev;
2239         void *rqtc;
2240         int inlen;
2241         u32 *in;
2242         int err;
2243
2244         inlen = MLX5_ST_SZ_BYTES(modify_rqt_in) + sizeof(u32) * sz;
2245         in = kvzalloc(inlen, GFP_KERNEL);
2246         if (!in)
2247                 return -ENOMEM;
2248
2249         rqtc = MLX5_ADDR_OF(modify_rqt_in, in, ctx);
2250
2251         MLX5_SET(rqtc, rqtc, rqt_actual_size, sz);
2252         MLX5_SET(modify_rqt_in, in, bitmask.rqn_list, 1);
2253         mlx5e_fill_rqt_rqns(priv, sz, rrp, rqtc);
2254         err = mlx5_core_modify_rqt(mdev, rqtn, in, inlen);
2255
2256         kvfree(in);
2257         return err;
2258 }
2259
2260 static u32 mlx5e_get_direct_rqn(struct mlx5e_priv *priv, int ix,
2261                                 struct mlx5e_redirect_rqt_param rrp)
2262 {
2263         if (!rrp.is_rss)
2264                 return rrp.rqn;
2265
2266         if (ix >= rrp.rss.channels->num)
2267                 return priv->drop_rq.rqn;
2268
2269         return rrp.rss.channels->c[ix]->rq.rqn;
2270 }
2271
2272 static void mlx5e_redirect_rqts(struct mlx5e_priv *priv,
2273                                 struct mlx5e_redirect_rqt_param rrp)
2274 {
2275         u32 rqtn;
2276         int ix;
2277
2278         if (priv->indir_rqt.enabled) {
2279                 /* RSS RQ table */
2280                 rqtn = priv->indir_rqt.rqtn;
2281                 mlx5e_redirect_rqt(priv, rqtn, MLX5E_INDIR_RQT_SIZE, rrp);
2282         }
2283
2284         for (ix = 0; ix < priv->profile->max_nch(priv->mdev); ix++) {
2285                 struct mlx5e_redirect_rqt_param direct_rrp = {
2286                         .is_rss = false,
2287                         {
2288                                 .rqn    = mlx5e_get_direct_rqn(priv, ix, rrp)
2289                         },
2290                 };
2291
2292                 /* Direct RQ Tables */
2293                 if (!priv->direct_tir[ix].rqt.enabled)
2294                         continue;
2295
2296                 rqtn = priv->direct_tir[ix].rqt.rqtn;
2297                 mlx5e_redirect_rqt(priv, rqtn, 1, direct_rrp);
2298         }
2299 }
2300
2301 static void mlx5e_redirect_rqts_to_channels(struct mlx5e_priv *priv,
2302                                             struct mlx5e_channels *chs)
2303 {
2304         struct mlx5e_redirect_rqt_param rrp = {
2305                 .is_rss        = true,
2306                 {
2307                         .rss = {
2308                                 .channels  = chs,
2309                                 .hfunc     = chs->params.rss_hfunc,
2310                         }
2311                 },
2312         };
2313
2314         mlx5e_redirect_rqts(priv, rrp);
2315 }
2316
2317 static void mlx5e_redirect_rqts_to_drop(struct mlx5e_priv *priv)
2318 {
2319         struct mlx5e_redirect_rqt_param drop_rrp = {
2320                 .is_rss = false,
2321                 {
2322                         .rqn = priv->drop_rq.rqn,
2323                 },
2324         };
2325
2326         mlx5e_redirect_rqts(priv, drop_rrp);
2327 }
2328
2329 static void mlx5e_build_tir_ctx_lro(struct mlx5e_params *params, void *tirc)
2330 {
2331         if (!params->lro_en)
2332                 return;
2333
2334 #define ROUGH_MAX_L2_L3_HDR_SZ 256
2335
2336         MLX5_SET(tirc, tirc, lro_enable_mask,
2337                  MLX5_TIRC_LRO_ENABLE_MASK_IPV4_LRO |
2338                  MLX5_TIRC_LRO_ENABLE_MASK_IPV6_LRO);
2339         MLX5_SET(tirc, tirc, lro_max_ip_payload_size,
2340                  (params->lro_wqe_sz - ROUGH_MAX_L2_L3_HDR_SZ) >> 8);
2341         MLX5_SET(tirc, tirc, lro_timeout_period_usecs, params->lro_timeout);
2342 }
2343
2344 void mlx5e_build_indir_tir_ctx_hash(struct mlx5e_params *params,
2345                                     enum mlx5e_traffic_types tt,
2346                                     void *tirc)
2347 {
2348         void *hfso = MLX5_ADDR_OF(tirc, tirc, rx_hash_field_selector_outer);
2349
2350 #define MLX5_HASH_IP            (MLX5_HASH_FIELD_SEL_SRC_IP   |\
2351                                  MLX5_HASH_FIELD_SEL_DST_IP)
2352
2353 #define MLX5_HASH_IP_L4PORTS    (MLX5_HASH_FIELD_SEL_SRC_IP   |\
2354                                  MLX5_HASH_FIELD_SEL_DST_IP   |\
2355                                  MLX5_HASH_FIELD_SEL_L4_SPORT |\
2356                                  MLX5_HASH_FIELD_SEL_L4_DPORT)
2357
2358 #define MLX5_HASH_IP_IPSEC_SPI  (MLX5_HASH_FIELD_SEL_SRC_IP   |\
2359                                  MLX5_HASH_FIELD_SEL_DST_IP   |\
2360                                  MLX5_HASH_FIELD_SEL_IPSEC_SPI)
2361
2362         MLX5_SET(tirc, tirc, rx_hash_fn, mlx5e_rx_hash_fn(params->rss_hfunc));
2363         if (params->rss_hfunc == ETH_RSS_HASH_TOP) {
2364                 void *rss_key = MLX5_ADDR_OF(tirc, tirc,
2365                                              rx_hash_toeplitz_key);
2366                 size_t len = MLX5_FLD_SZ_BYTES(tirc,
2367                                                rx_hash_toeplitz_key);
2368
2369                 MLX5_SET(tirc, tirc, rx_hash_symmetric, 1);
2370                 memcpy(rss_key, params->toeplitz_hash_key, len);
2371         }
2372
2373         switch (tt) {
2374         case MLX5E_TT_IPV4_TCP:
2375                 MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
2376                          MLX5_L3_PROT_TYPE_IPV4);
2377                 MLX5_SET(rx_hash_field_select, hfso, l4_prot_type,
2378                          MLX5_L4_PROT_TYPE_TCP);
2379                 MLX5_SET(rx_hash_field_select, hfso, selected_fields,
2380                          MLX5_HASH_IP_L4PORTS);
2381                 break;
2382
2383         case MLX5E_TT_IPV6_TCP:
2384                 MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
2385                          MLX5_L3_PROT_TYPE_IPV6);
2386                 MLX5_SET(rx_hash_field_select, hfso, l4_prot_type,
2387                          MLX5_L4_PROT_TYPE_TCP);
2388                 MLX5_SET(rx_hash_field_select, hfso, selected_fields,
2389                          MLX5_HASH_IP_L4PORTS);
2390                 break;
2391
2392         case MLX5E_TT_IPV4_UDP:
2393                 MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
2394                          MLX5_L3_PROT_TYPE_IPV4);
2395                 MLX5_SET(rx_hash_field_select, hfso, l4_prot_type,
2396                          MLX5_L4_PROT_TYPE_UDP);
2397                 MLX5_SET(rx_hash_field_select, hfso, selected_fields,
2398                          MLX5_HASH_IP_L4PORTS);
2399                 break;
2400
2401         case MLX5E_TT_IPV6_UDP:
2402                 MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
2403                          MLX5_L3_PROT_TYPE_IPV6);
2404                 MLX5_SET(rx_hash_field_select, hfso, l4_prot_type,
2405                          MLX5_L4_PROT_TYPE_UDP);
2406                 MLX5_SET(rx_hash_field_select, hfso, selected_fields,
2407                          MLX5_HASH_IP_L4PORTS);
2408                 break;
2409
2410         case MLX5E_TT_IPV4_IPSEC_AH:
2411                 MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
2412                          MLX5_L3_PROT_TYPE_IPV4);
2413                 MLX5_SET(rx_hash_field_select, hfso, selected_fields,
2414                          MLX5_HASH_IP_IPSEC_SPI);
2415                 break;
2416
2417         case MLX5E_TT_IPV6_IPSEC_AH:
2418                 MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
2419                          MLX5_L3_PROT_TYPE_IPV6);
2420                 MLX5_SET(rx_hash_field_select, hfso, selected_fields,
2421                          MLX5_HASH_IP_IPSEC_SPI);
2422                 break;
2423
2424         case MLX5E_TT_IPV4_IPSEC_ESP:
2425                 MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
2426                          MLX5_L3_PROT_TYPE_IPV4);
2427                 MLX5_SET(rx_hash_field_select, hfso, selected_fields,
2428                          MLX5_HASH_IP_IPSEC_SPI);
2429                 break;
2430
2431         case MLX5E_TT_IPV6_IPSEC_ESP:
2432                 MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
2433                          MLX5_L3_PROT_TYPE_IPV6);
2434                 MLX5_SET(rx_hash_field_select, hfso, selected_fields,
2435                          MLX5_HASH_IP_IPSEC_SPI);
2436                 break;
2437
2438         case MLX5E_TT_IPV4:
2439                 MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
2440                          MLX5_L3_PROT_TYPE_IPV4);
2441                 MLX5_SET(rx_hash_field_select, hfso, selected_fields,
2442                          MLX5_HASH_IP);
2443                 break;
2444
2445         case MLX5E_TT_IPV6:
2446                 MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
2447                          MLX5_L3_PROT_TYPE_IPV6);
2448                 MLX5_SET(rx_hash_field_select, hfso, selected_fields,
2449                          MLX5_HASH_IP);
2450                 break;
2451         default:
2452                 WARN_ONCE(true, "%s: bad traffic type!\n", __func__);
2453         }
2454 }
2455
2456 static int mlx5e_modify_tirs_lro(struct mlx5e_priv *priv)
2457 {
2458         struct mlx5_core_dev *mdev = priv->mdev;
2459
2460         void *in;
2461         void *tirc;
2462         int inlen;
2463         int err;
2464         int tt;
2465         int ix;
2466
2467         inlen = MLX5_ST_SZ_BYTES(modify_tir_in);
2468         in = kvzalloc(inlen, GFP_KERNEL);
2469         if (!in)
2470                 return -ENOMEM;
2471
2472         MLX5_SET(modify_tir_in, in, bitmask.lro, 1);
2473         tirc = MLX5_ADDR_OF(modify_tir_in, in, ctx);
2474
2475         mlx5e_build_tir_ctx_lro(&priv->channels.params, tirc);
2476
2477         for (tt = 0; tt < MLX5E_NUM_INDIR_TIRS; tt++) {
2478                 err = mlx5_core_modify_tir(mdev, priv->indir_tir[tt].tirn, in,
2479                                            inlen);
2480                 if (err)
2481                         goto free_in;
2482         }
2483
2484         for (ix = 0; ix < priv->profile->max_nch(priv->mdev); ix++) {
2485                 err = mlx5_core_modify_tir(mdev, priv->direct_tir[ix].tirn,
2486                                            in, inlen);
2487                 if (err)
2488                         goto free_in;
2489         }
2490
2491 free_in:
2492         kvfree(in);
2493
2494         return err;
2495 }
2496
2497 static int mlx5e_set_mtu(struct mlx5e_priv *priv, u16 mtu)
2498 {
2499         struct mlx5_core_dev *mdev = priv->mdev;
2500         u16 hw_mtu = MLX5E_SW2HW_MTU(priv, mtu);
2501         int err;
2502
2503         err = mlx5_set_port_mtu(mdev, hw_mtu, 1);
2504         if (err)
2505                 return err;
2506
2507         /* Update vport context MTU */
2508         mlx5_modify_nic_vport_mtu(mdev, hw_mtu);
2509         return 0;
2510 }
2511
2512 static void mlx5e_query_mtu(struct mlx5e_priv *priv, u16 *mtu)
2513 {
2514         struct mlx5_core_dev *mdev = priv->mdev;
2515         u16 hw_mtu = 0;
2516         int err;
2517
2518         err = mlx5_query_nic_vport_mtu(mdev, &hw_mtu);
2519         if (err || !hw_mtu) /* fallback to port oper mtu */
2520                 mlx5_query_port_oper_mtu(mdev, &hw_mtu, 1);
2521
2522         *mtu = MLX5E_HW2SW_MTU(priv, hw_mtu);
2523 }
2524
2525 static int mlx5e_set_dev_port_mtu(struct mlx5e_priv *priv)
2526 {
2527         struct net_device *netdev = priv->netdev;
2528         u16 mtu;
2529         int err;
2530
2531         err = mlx5e_set_mtu(priv, netdev->mtu);
2532         if (err)
2533                 return err;
2534
2535         mlx5e_query_mtu(priv, &mtu);
2536         if (mtu != netdev->mtu)
2537                 netdev_warn(netdev, "%s: VPort MTU %d is different than netdev mtu %d\n",
2538                             __func__, mtu, netdev->mtu);
2539
2540         netdev->mtu = mtu;
2541         return 0;
2542 }
2543
2544 static void mlx5e_netdev_set_tcs(struct net_device *netdev)
2545 {
2546         struct mlx5e_priv *priv = netdev_priv(netdev);
2547         int nch = priv->channels.params.num_channels;
2548         int ntc = priv->channels.params.num_tc;
2549         int tc;
2550
2551         netdev_reset_tc(netdev);
2552
2553         if (ntc == 1)
2554                 return;
2555
2556         netdev_set_num_tc(netdev, ntc);
2557
2558         /* Map netdev TCs to offset 0
2559          * We have our own UP to TXQ mapping for QoS
2560          */
2561         for (tc = 0; tc < ntc; tc++)
2562                 netdev_set_tc_queue(netdev, tc, nch, 0);
2563 }
2564
2565 static void mlx5e_build_channels_tx_maps(struct mlx5e_priv *priv)
2566 {
2567         struct mlx5e_channel *c;
2568         struct mlx5e_txqsq *sq;
2569         int i, tc;
2570
2571         for (i = 0; i < priv->channels.num; i++)
2572                 for (tc = 0; tc < priv->profile->max_tc; tc++)
2573                         priv->channel_tc2txq[i][tc] = i + tc * priv->channels.num;
2574
2575         for (i = 0; i < priv->channels.num; i++) {
2576                 c = priv->channels.c[i];
2577                 for (tc = 0; tc < c->num_tc; tc++) {
2578                         sq = &c->sq[tc];
2579                         priv->txq2sq[sq->txq_ix] = sq;
2580                 }
2581         }
2582 }
2583
2584 static bool mlx5e_is_eswitch_vport_mngr(struct mlx5_core_dev *mdev)
2585 {
2586         return (MLX5_CAP_GEN(mdev, vport_group_manager) &&
2587                 MLX5_CAP_GEN(mdev, port_type) == MLX5_CAP_PORT_TYPE_ETH);
2588 }
2589
2590 void mlx5e_activate_priv_channels(struct mlx5e_priv *priv)
2591 {
2592         int num_txqs = priv->channels.num * priv->channels.params.num_tc;
2593         struct net_device *netdev = priv->netdev;
2594
2595         mlx5e_netdev_set_tcs(netdev);
2596         netif_set_real_num_tx_queues(netdev, num_txqs);
2597         netif_set_real_num_rx_queues(netdev, priv->channels.num);
2598
2599         mlx5e_build_channels_tx_maps(priv);
2600         mlx5e_activate_channels(&priv->channels);
2601         netif_tx_start_all_queues(priv->netdev);
2602
2603         if (mlx5e_is_eswitch_vport_mngr(priv->mdev))
2604                 mlx5e_add_sqs_fwd_rules(priv);
2605
2606         mlx5e_wait_channels_min_rx_wqes(&priv->channels);
2607         mlx5e_redirect_rqts_to_channels(priv, &priv->channels);
2608 }
2609
2610 void mlx5e_deactivate_priv_channels(struct mlx5e_priv *priv)
2611 {
2612         mlx5e_redirect_rqts_to_drop(priv);
2613
2614         if (mlx5e_is_eswitch_vport_mngr(priv->mdev))
2615                 mlx5e_remove_sqs_fwd_rules(priv);
2616
2617         /* FIXME: This is a W/A only for tx timeout watch dog false alarm when
2618          * polling for inactive tx queues.
2619          */
2620         netif_tx_stop_all_queues(priv->netdev);
2621         netif_tx_disable(priv->netdev);
2622         mlx5e_deactivate_channels(&priv->channels);
2623 }
2624
2625 void mlx5e_switch_priv_channels(struct mlx5e_priv *priv,
2626                                 struct mlx5e_channels *new_chs,
2627                                 mlx5e_fp_hw_modify hw_modify)
2628 {
2629         struct net_device *netdev = priv->netdev;
2630         int new_num_txqs;
2631         int carrier_ok;
2632         new_num_txqs = new_chs->num * new_chs->params.num_tc;
2633
2634         carrier_ok = netif_carrier_ok(netdev);
2635         netif_carrier_off(netdev);
2636
2637         if (new_num_txqs < netdev->real_num_tx_queues)
2638                 netif_set_real_num_tx_queues(netdev, new_num_txqs);
2639
2640         mlx5e_deactivate_priv_channels(priv);
2641         mlx5e_close_channels(&priv->channels);
2642
2643         priv->channels = *new_chs;
2644
2645         /* New channels are ready to roll, modify HW settings if needed */
2646         if (hw_modify)
2647                 hw_modify(priv);
2648
2649         mlx5e_refresh_tirs(priv, false);
2650         mlx5e_activate_priv_channels(priv);
2651
2652         /* return carrier back if needed */
2653         if (carrier_ok)
2654                 netif_carrier_on(netdev);
2655 }
2656
2657 int mlx5e_open_locked(struct net_device *netdev)
2658 {
2659         struct mlx5e_priv *priv = netdev_priv(netdev);
2660         int err;
2661
2662         set_bit(MLX5E_STATE_OPENED, &priv->state);
2663
2664         err = mlx5e_open_channels(priv, &priv->channels);
2665         if (err)
2666                 goto err_clear_state_opened_flag;
2667
2668         mlx5e_refresh_tirs(priv, false);
2669         mlx5e_activate_priv_channels(priv);
2670         if (priv->profile->update_carrier)
2671                 priv->profile->update_carrier(priv);
2672         mlx5e_timestamp_init(priv);
2673
2674         if (priv->profile->update_stats)
2675                 queue_delayed_work(priv->wq, &priv->update_stats_work, 0);
2676
2677         return 0;
2678
2679 err_clear_state_opened_flag:
2680         clear_bit(MLX5E_STATE_OPENED, &priv->state);
2681         return err;
2682 }
2683
2684 int mlx5e_open(struct net_device *netdev)
2685 {
2686         struct mlx5e_priv *priv = netdev_priv(netdev);
2687         int err;
2688
2689         mutex_lock(&priv->state_lock);
2690         err = mlx5e_open_locked(netdev);
2691         mutex_unlock(&priv->state_lock);
2692
2693         return err;
2694 }
2695
2696 int mlx5e_close_locked(struct net_device *netdev)
2697 {
2698         struct mlx5e_priv *priv = netdev_priv(netdev);
2699
2700         /* May already be CLOSED in case a previous configuration operation
2701          * (e.g RX/TX queue size change) that involves close&open failed.
2702          */
2703         if (!test_bit(MLX5E_STATE_OPENED, &priv->state))
2704                 return 0;
2705
2706         clear_bit(MLX5E_STATE_OPENED, &priv->state);
2707
2708         mlx5e_timestamp_cleanup(priv);
2709         netif_carrier_off(priv->netdev);
2710         mlx5e_deactivate_priv_channels(priv);
2711         mlx5e_close_channels(&priv->channels);
2712
2713         return 0;
2714 }
2715
2716 int mlx5e_close(struct net_device *netdev)
2717 {
2718         struct mlx5e_priv *priv = netdev_priv(netdev);
2719         int err;
2720
2721         if (!netif_device_present(netdev))
2722                 return -ENODEV;
2723
2724         mutex_lock(&priv->state_lock);
2725         err = mlx5e_close_locked(netdev);
2726         mutex_unlock(&priv->state_lock);
2727
2728         return err;
2729 }
2730
2731 static int mlx5e_alloc_drop_rq(struct mlx5_core_dev *mdev,
2732                                struct mlx5e_rq *rq,
2733                                struct mlx5e_rq_param *param)
2734 {
2735         void *rqc = param->rqc;
2736         void *rqc_wq = MLX5_ADDR_OF(rqc, rqc, wq);
2737         int err;
2738
2739         param->wq.db_numa_node = param->wq.buf_numa_node;
2740
2741         err = mlx5_wq_ll_create(mdev, &param->wq, rqc_wq, &rq->wq,
2742                                 &rq->wq_ctrl);
2743         if (err)
2744                 return err;
2745
2746         rq->mdev = mdev;
2747
2748         return 0;
2749 }
2750
2751 static int mlx5e_alloc_drop_cq(struct mlx5_core_dev *mdev,
2752                                struct mlx5e_cq *cq,
2753                                struct mlx5e_cq_param *param)
2754 {
2755         return mlx5e_alloc_cq_common(mdev, param, cq);
2756 }
2757
2758 static int mlx5e_open_drop_rq(struct mlx5_core_dev *mdev,
2759                               struct mlx5e_rq *drop_rq)
2760 {
2761         struct mlx5e_cq_param cq_param = {};
2762         struct mlx5e_rq_param rq_param = {};
2763         struct mlx5e_cq *cq = &drop_rq->cq;
2764         int err;
2765
2766         mlx5e_build_drop_rq_param(&rq_param);
2767
2768         err = mlx5e_alloc_drop_cq(mdev, cq, &cq_param);
2769         if (err)
2770                 return err;
2771
2772         err = mlx5e_create_cq(cq, &cq_param);
2773         if (err)
2774                 goto err_free_cq;
2775
2776         err = mlx5e_alloc_drop_rq(mdev, drop_rq, &rq_param);
2777         if (err)
2778                 goto err_destroy_cq;
2779
2780         err = mlx5e_create_rq(drop_rq, &rq_param);
2781         if (err)
2782                 goto err_free_rq;
2783
2784         return 0;
2785
2786 err_free_rq:
2787         mlx5e_free_rq(drop_rq);
2788
2789 err_destroy_cq:
2790         mlx5e_destroy_cq(cq);
2791
2792 err_free_cq:
2793         mlx5e_free_cq(cq);
2794
2795         return err;
2796 }
2797
2798 static void mlx5e_close_drop_rq(struct mlx5e_rq *drop_rq)
2799 {
2800         mlx5e_destroy_rq(drop_rq);
2801         mlx5e_free_rq(drop_rq);
2802         mlx5e_destroy_cq(&drop_rq->cq);
2803         mlx5e_free_cq(&drop_rq->cq);
2804 }
2805
2806 int mlx5e_create_tis(struct mlx5_core_dev *mdev, int tc,
2807                      u32 underlay_qpn, u32 *tisn)
2808 {
2809         u32 in[MLX5_ST_SZ_DW(create_tis_in)] = {0};
2810         void *tisc = MLX5_ADDR_OF(create_tis_in, in, ctx);
2811
2812         MLX5_SET(tisc, tisc, prio, tc << 1);
2813         MLX5_SET(tisc, tisc, underlay_qpn, underlay_qpn);
2814         MLX5_SET(tisc, tisc, transport_domain, mdev->mlx5e_res.td.tdn);
2815
2816         if (mlx5_lag_is_lacp_owner(mdev))
2817                 MLX5_SET(tisc, tisc, strict_lag_tx_port_affinity, 1);
2818
2819         return mlx5_core_create_tis(mdev, in, sizeof(in), tisn);
2820 }
2821
2822 void mlx5e_destroy_tis(struct mlx5_core_dev *mdev, u32 tisn)
2823 {
2824         mlx5_core_destroy_tis(mdev, tisn);
2825 }
2826
2827 int mlx5e_create_tises(struct mlx5e_priv *priv)
2828 {
2829         int err;
2830         int tc;
2831
2832         for (tc = 0; tc < priv->profile->max_tc; tc++) {
2833                 err = mlx5e_create_tis(priv->mdev, tc, 0, &priv->tisn[tc]);
2834                 if (err)
2835                         goto err_close_tises;
2836         }
2837
2838         return 0;
2839
2840 err_close_tises:
2841         for (tc--; tc >= 0; tc--)
2842                 mlx5e_destroy_tis(priv->mdev, priv->tisn[tc]);
2843
2844         return err;
2845 }
2846
2847 void mlx5e_cleanup_nic_tx(struct mlx5e_priv *priv)
2848 {
2849         int tc;
2850
2851         for (tc = 0; tc < priv->profile->max_tc; tc++)
2852                 mlx5e_destroy_tis(priv->mdev, priv->tisn[tc]);
2853 }
2854
2855 static void mlx5e_build_indir_tir_ctx(struct mlx5e_priv *priv,
2856                                       enum mlx5e_traffic_types tt,
2857                                       u32 *tirc)
2858 {
2859         MLX5_SET(tirc, tirc, transport_domain, priv->mdev->mlx5e_res.td.tdn);
2860
2861         mlx5e_build_tir_ctx_lro(&priv->channels.params, tirc);
2862
2863         MLX5_SET(tirc, tirc, disp_type, MLX5_TIRC_DISP_TYPE_INDIRECT);
2864         MLX5_SET(tirc, tirc, indirect_table, priv->indir_rqt.rqtn);
2865         mlx5e_build_indir_tir_ctx_hash(&priv->channels.params, tt, tirc);
2866 }
2867
2868 static void mlx5e_build_direct_tir_ctx(struct mlx5e_priv *priv, u32 rqtn, u32 *tirc)
2869 {
2870         MLX5_SET(tirc, tirc, transport_domain, priv->mdev->mlx5e_res.td.tdn);
2871
2872         mlx5e_build_tir_ctx_lro(&priv->channels.params, tirc);
2873
2874         MLX5_SET(tirc, tirc, disp_type, MLX5_TIRC_DISP_TYPE_INDIRECT);
2875         MLX5_SET(tirc, tirc, indirect_table, rqtn);
2876         MLX5_SET(tirc, tirc, rx_hash_fn, MLX5_RX_HASH_FN_INVERTED_XOR8);
2877 }
2878
2879 int mlx5e_create_indirect_tirs(struct mlx5e_priv *priv)
2880 {
2881         struct mlx5e_tir *tir;
2882         void *tirc;
2883         int inlen;
2884         int err;
2885         u32 *in;
2886         int tt;
2887
2888         inlen = MLX5_ST_SZ_BYTES(create_tir_in);
2889         in = kvzalloc(inlen, GFP_KERNEL);
2890         if (!in)
2891                 return -ENOMEM;
2892
2893         for (tt = 0; tt < MLX5E_NUM_INDIR_TIRS; tt++) {
2894                 memset(in, 0, inlen);
2895                 tir = &priv->indir_tir[tt];
2896                 tirc = MLX5_ADDR_OF(create_tir_in, in, ctx);
2897                 mlx5e_build_indir_tir_ctx(priv, tt, tirc);
2898                 err = mlx5e_create_tir(priv->mdev, tir, in, inlen);
2899                 if (err)
2900                         goto err_destroy_tirs;
2901         }
2902
2903         kvfree(in);
2904
2905         return 0;
2906
2907 err_destroy_tirs:
2908         mlx5_core_warn(priv->mdev, "create indirect tirs failed, %d\n", err);
2909         for (tt--; tt >= 0; tt--)
2910                 mlx5e_destroy_tir(priv->mdev, &priv->indir_tir[tt]);
2911
2912         kvfree(in);
2913
2914         return err;
2915 }
2916
2917 int mlx5e_create_direct_tirs(struct mlx5e_priv *priv)
2918 {
2919         int nch = priv->profile->max_nch(priv->mdev);
2920         struct mlx5e_tir *tir;
2921         void *tirc;
2922         int inlen;
2923         int err;
2924         u32 *in;
2925         int ix;
2926
2927         inlen = MLX5_ST_SZ_BYTES(create_tir_in);
2928         in = kvzalloc(inlen, GFP_KERNEL);
2929         if (!in)
2930                 return -ENOMEM;
2931
2932         for (ix = 0; ix < nch; ix++) {
2933                 memset(in, 0, inlen);
2934                 tir = &priv->direct_tir[ix];
2935                 tirc = MLX5_ADDR_OF(create_tir_in, in, ctx);
2936                 mlx5e_build_direct_tir_ctx(priv, priv->direct_tir[ix].rqt.rqtn, tirc);
2937                 err = mlx5e_create_tir(priv->mdev, tir, in, inlen);
2938                 if (err)
2939                         goto err_destroy_ch_tirs;
2940         }
2941
2942         kvfree(in);
2943
2944         return 0;
2945
2946 err_destroy_ch_tirs:
2947         mlx5_core_warn(priv->mdev, "create direct tirs failed, %d\n", err);
2948         for (ix--; ix >= 0; ix--)
2949                 mlx5e_destroy_tir(priv->mdev, &priv->direct_tir[ix]);
2950
2951         kvfree(in);
2952
2953         return err;
2954 }
2955
2956 void mlx5e_destroy_indirect_tirs(struct mlx5e_priv *priv)
2957 {
2958         int i;
2959
2960         for (i = 0; i < MLX5E_NUM_INDIR_TIRS; i++)
2961                 mlx5e_destroy_tir(priv->mdev, &priv->indir_tir[i]);
2962 }
2963
2964 void mlx5e_destroy_direct_tirs(struct mlx5e_priv *priv)
2965 {
2966         int nch = priv->profile->max_nch(priv->mdev);
2967         int i;
2968
2969         for (i = 0; i < nch; i++)
2970                 mlx5e_destroy_tir(priv->mdev, &priv->direct_tir[i]);
2971 }
2972
2973 static int mlx5e_modify_channels_scatter_fcs(struct mlx5e_channels *chs, bool enable)
2974 {
2975         int err = 0;
2976         int i;
2977
2978         for (i = 0; i < chs->num; i++) {
2979                 err = mlx5e_modify_rq_scatter_fcs(&chs->c[i]->rq, enable);
2980                 if (err)
2981                         return err;
2982         }
2983
2984         return 0;
2985 }
2986
2987 static int mlx5e_modify_channels_vsd(struct mlx5e_channels *chs, bool vsd)
2988 {
2989         int err = 0;
2990         int i;
2991
2992         for (i = 0; i < chs->num; i++) {
2993                 err = mlx5e_modify_rq_vsd(&chs->c[i]->rq, vsd);
2994                 if (err)
2995                         return err;
2996         }
2997
2998         return 0;
2999 }
3000
3001 static int mlx5e_setup_tc(struct net_device *netdev, u8 tc)
3002 {
3003         struct mlx5e_priv *priv = netdev_priv(netdev);
3004         struct mlx5e_channels new_channels = {};
3005         int err = 0;
3006
3007         if (tc && tc != MLX5E_MAX_NUM_TC)
3008                 return -EINVAL;
3009
3010         mutex_lock(&priv->state_lock);
3011
3012         new_channels.params = priv->channels.params;
3013         new_channels.params.num_tc = tc ? tc : 1;
3014
3015         if (!test_bit(MLX5E_STATE_OPENED, &priv->state)) {
3016                 priv->channels.params = new_channels.params;
3017                 goto out;
3018         }
3019
3020         err = mlx5e_open_channels(priv, &new_channels);
3021         if (err)
3022                 goto out;
3023
3024         mlx5e_switch_priv_channels(priv, &new_channels, NULL);
3025 out:
3026         mutex_unlock(&priv->state_lock);
3027         return err;
3028 }
3029
3030 static int mlx5e_ndo_setup_tc(struct net_device *dev, u32 handle,
3031                               u32 chain_index, __be16 proto,
3032                               struct tc_to_netdev *tc)
3033 {
3034         struct mlx5e_priv *priv = netdev_priv(dev);
3035
3036         if (TC_H_MAJ(handle) != TC_H_MAJ(TC_H_INGRESS))
3037                 goto mqprio;
3038
3039         if (chain_index)
3040                 return -EOPNOTSUPP;
3041
3042         switch (tc->type) {
3043         case TC_SETUP_CLSFLOWER:
3044                 switch (tc->cls_flower->command) {
3045                 case TC_CLSFLOWER_REPLACE:
3046                         return mlx5e_configure_flower(priv, proto, tc->cls_flower);
3047                 case TC_CLSFLOWER_DESTROY:
3048                         return mlx5e_delete_flower(priv, tc->cls_flower);
3049                 case TC_CLSFLOWER_STATS:
3050                         return mlx5e_stats_flower(priv, tc->cls_flower);
3051                 }
3052         default:
3053                 return -EOPNOTSUPP;
3054         }
3055
3056 mqprio:
3057         if (tc->type != TC_SETUP_MQPRIO)
3058                 return -EINVAL;
3059
3060         tc->mqprio->hw = TC_MQPRIO_HW_OFFLOAD_TCS;
3061
3062         return mlx5e_setup_tc(dev, tc->mqprio->num_tc);
3063 }
3064
3065 static void
3066 mlx5e_get_stats(struct net_device *dev, struct rtnl_link_stats64 *stats)
3067 {
3068         struct mlx5e_priv *priv = netdev_priv(dev);
3069         struct mlx5e_sw_stats *sstats = &priv->stats.sw;
3070         struct mlx5e_vport_stats *vstats = &priv->stats.vport;
3071         struct mlx5e_pport_stats *pstats = &priv->stats.pport;
3072
3073         if (mlx5e_is_uplink_rep(priv)) {
3074                 stats->rx_packets = PPORT_802_3_GET(pstats, a_frames_received_ok);
3075                 stats->rx_bytes   = PPORT_802_3_GET(pstats, a_octets_received_ok);
3076                 stats->tx_packets = PPORT_802_3_GET(pstats, a_frames_transmitted_ok);
3077                 stats->tx_bytes   = PPORT_802_3_GET(pstats, a_octets_transmitted_ok);
3078         } else {
3079                 stats->rx_packets = sstats->rx_packets;
3080                 stats->rx_bytes   = sstats->rx_bytes;
3081                 stats->tx_packets = sstats->tx_packets;
3082                 stats->tx_bytes   = sstats->tx_bytes;
3083                 stats->tx_dropped = sstats->tx_queue_dropped;
3084         }
3085
3086         stats->rx_dropped = priv->stats.qcnt.rx_out_of_buffer;
3087
3088         stats->rx_length_errors =
3089                 PPORT_802_3_GET(pstats, a_in_range_length_errors) +
3090                 PPORT_802_3_GET(pstats, a_out_of_range_length_field) +
3091                 PPORT_802_3_GET(pstats, a_frame_too_long_errors);
3092         stats->rx_crc_errors =
3093                 PPORT_802_3_GET(pstats, a_frame_check_sequence_errors);
3094         stats->rx_frame_errors = PPORT_802_3_GET(pstats, a_alignment_errors);
3095         stats->tx_aborted_errors = PPORT_2863_GET(pstats, if_out_discards);
3096         stats->rx_errors = stats->rx_length_errors + stats->rx_crc_errors +
3097                            stats->rx_frame_errors;
3098         stats->tx_errors = stats->tx_aborted_errors + stats->tx_carrier_errors;
3099
3100         /* vport multicast also counts packets that are dropped due to steering
3101          * or rx out of buffer
3102          */
3103         stats->multicast =
3104                 VPORT_COUNTER_GET(vstats, received_eth_multicast.packets);
3105 }
3106
3107 static void mlx5e_set_rx_mode(struct net_device *dev)
3108 {
3109         struct mlx5e_priv *priv = netdev_priv(dev);
3110
3111         queue_work(priv->wq, &priv->set_rx_mode_work);
3112 }
3113
3114 static int mlx5e_set_mac(struct net_device *netdev, void *addr)
3115 {
3116         struct mlx5e_priv *priv = netdev_priv(netdev);
3117         struct sockaddr *saddr = addr;
3118
3119         if (!is_valid_ether_addr(saddr->sa_data))
3120                 return -EADDRNOTAVAIL;
3121
3122         netif_addr_lock_bh(netdev);
3123         ether_addr_copy(netdev->dev_addr, saddr->sa_data);
3124         netif_addr_unlock_bh(netdev);
3125
3126         queue_work(priv->wq, &priv->set_rx_mode_work);
3127
3128         return 0;
3129 }
3130
3131 #define MLX5E_SET_FEATURE(netdev, feature, enable)      \
3132         do {                                            \
3133                 if (enable)                             \
3134                         netdev->features |= feature;    \
3135                 else                                    \
3136                         netdev->features &= ~feature;   \
3137         } while (0)
3138
3139 typedef int (*mlx5e_feature_handler)(struct net_device *netdev, bool enable);
3140
3141 static int set_feature_lro(struct net_device *netdev, bool enable)
3142 {
3143         struct mlx5e_priv *priv = netdev_priv(netdev);
3144         struct mlx5e_channels new_channels = {};
3145         int err = 0;
3146         bool reset;
3147
3148         mutex_lock(&priv->state_lock);
3149
3150         reset = (priv->channels.params.rq_wq_type == MLX5_WQ_TYPE_LINKED_LIST);
3151         reset = reset && test_bit(MLX5E_STATE_OPENED, &priv->state);
3152
3153         new_channels.params = priv->channels.params;
3154         new_channels.params.lro_en = enable;
3155
3156         if (!reset) {
3157                 priv->channels.params = new_channels.params;
3158                 err = mlx5e_modify_tirs_lro(priv);
3159                 goto out;
3160         }
3161
3162         err = mlx5e_open_channels(priv, &new_channels);
3163         if (err)
3164                 goto out;
3165
3166         mlx5e_switch_priv_channels(priv, &new_channels, mlx5e_modify_tirs_lro);
3167 out:
3168         mutex_unlock(&priv->state_lock);
3169         return err;
3170 }
3171
3172 static int set_feature_vlan_filter(struct net_device *netdev, bool enable)
3173 {
3174         struct mlx5e_priv *priv = netdev_priv(netdev);
3175
3176         if (enable)
3177                 mlx5e_enable_vlan_filter(priv);
3178         else
3179                 mlx5e_disable_vlan_filter(priv);
3180
3181         return 0;
3182 }
3183
3184 static int set_feature_tc_num_filters(struct net_device *netdev, bool enable)
3185 {
3186         struct mlx5e_priv *priv = netdev_priv(netdev);
3187
3188         if (!enable && mlx5e_tc_num_filters(priv)) {
3189                 netdev_err(netdev,
3190                            "Active offloaded tc filters, can't turn hw_tc_offload off\n");
3191                 return -EINVAL;
3192         }
3193
3194         return 0;
3195 }
3196
3197 static int set_feature_rx_all(struct net_device *netdev, bool enable)
3198 {
3199         struct mlx5e_priv *priv = netdev_priv(netdev);
3200         struct mlx5_core_dev *mdev = priv->mdev;
3201
3202         return mlx5_set_port_fcs(mdev, !enable);
3203 }
3204
3205 static int set_feature_rx_fcs(struct net_device *netdev, bool enable)
3206 {
3207         struct mlx5e_priv *priv = netdev_priv(netdev);
3208         int err;
3209
3210         mutex_lock(&priv->state_lock);
3211
3212         priv->channels.params.scatter_fcs_en = enable;
3213         err = mlx5e_modify_channels_scatter_fcs(&priv->channels, enable);
3214         if (err)
3215                 priv->channels.params.scatter_fcs_en = !enable;
3216
3217         mutex_unlock(&priv->state_lock);
3218
3219         return err;
3220 }
3221
3222 static int set_feature_rx_vlan(struct net_device *netdev, bool enable)
3223 {
3224         struct mlx5e_priv *priv = netdev_priv(netdev);
3225         int err = 0;
3226
3227         mutex_lock(&priv->state_lock);
3228
3229         priv->channels.params.vlan_strip_disable = !enable;
3230         if (!test_bit(MLX5E_STATE_OPENED, &priv->state))
3231                 goto unlock;
3232
3233         err = mlx5e_modify_channels_vsd(&priv->channels, !enable);
3234         if (err)
3235                 priv->channels.params.vlan_strip_disable = enable;
3236
3237 unlock:
3238         mutex_unlock(&priv->state_lock);
3239
3240         return err;
3241 }
3242
3243 #ifdef CONFIG_RFS_ACCEL
3244 static int set_feature_arfs(struct net_device *netdev, bool enable)
3245 {
3246         struct mlx5e_priv *priv = netdev_priv(netdev);
3247         int err;
3248
3249         if (enable)
3250                 err = mlx5e_arfs_enable(priv);
3251         else
3252                 err = mlx5e_arfs_disable(priv);
3253
3254         return err;
3255 }
3256 #endif
3257
3258 static int mlx5e_handle_feature(struct net_device *netdev,
3259                                 netdev_features_t wanted_features,
3260                                 netdev_features_t feature,
3261                                 mlx5e_feature_handler feature_handler)
3262 {
3263         netdev_features_t changes = wanted_features ^ netdev->features;
3264         bool enable = !!(wanted_features & feature);
3265         int err;
3266
3267         if (!(changes & feature))
3268                 return 0;
3269
3270         err = feature_handler(netdev, enable);
3271         if (err) {
3272                 netdev_err(netdev, "%s feature 0x%llx failed err %d\n",
3273                            enable ? "Enable" : "Disable", feature, err);
3274                 return err;
3275         }
3276
3277         MLX5E_SET_FEATURE(netdev, feature, enable);
3278         return 0;
3279 }
3280
3281 static int mlx5e_set_features(struct net_device *netdev,
3282                               netdev_features_t features)
3283 {
3284         int err;
3285
3286         err  = mlx5e_handle_feature(netdev, features, NETIF_F_LRO,
3287                                     set_feature_lro);
3288         err |= mlx5e_handle_feature(netdev, features,
3289                                     NETIF_F_HW_VLAN_CTAG_FILTER,
3290                                     set_feature_vlan_filter);
3291         err |= mlx5e_handle_feature(netdev, features, NETIF_F_HW_TC,
3292                                     set_feature_tc_num_filters);
3293         err |= mlx5e_handle_feature(netdev, features, NETIF_F_RXALL,
3294                                     set_feature_rx_all);
3295         err |= mlx5e_handle_feature(netdev, features, NETIF_F_RXFCS,
3296                                     set_feature_rx_fcs);
3297         err |= mlx5e_handle_feature(netdev, features, NETIF_F_HW_VLAN_CTAG_RX,
3298                                     set_feature_rx_vlan);
3299 #ifdef CONFIG_RFS_ACCEL
3300         err |= mlx5e_handle_feature(netdev, features, NETIF_F_NTUPLE,
3301                                     set_feature_arfs);
3302 #endif
3303
3304         return err ? -EINVAL : 0;
3305 }
3306
3307 static int mlx5e_change_mtu(struct net_device *netdev, int new_mtu)
3308 {
3309         struct mlx5e_priv *priv = netdev_priv(netdev);
3310         struct mlx5e_channels new_channels = {};
3311         int curr_mtu;
3312         int err = 0;
3313         bool reset;
3314
3315         mutex_lock(&priv->state_lock);
3316
3317         reset = !priv->channels.params.lro_en &&
3318                 (priv->channels.params.rq_wq_type !=
3319                  MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ);
3320
3321         reset = reset && test_bit(MLX5E_STATE_OPENED, &priv->state);
3322
3323         curr_mtu    = netdev->mtu;
3324         netdev->mtu = new_mtu;
3325
3326         if (!reset) {
3327                 mlx5e_set_dev_port_mtu(priv);
3328                 goto out;
3329         }
3330
3331         new_channels.params = priv->channels.params;
3332         err = mlx5e_open_channels(priv, &new_channels);
3333         if (err) {
3334                 netdev->mtu = curr_mtu;
3335                 goto out;
3336         }
3337
3338         mlx5e_switch_priv_channels(priv, &new_channels, mlx5e_set_dev_port_mtu);
3339
3340 out:
3341         mutex_unlock(&priv->state_lock);
3342         return err;
3343 }
3344
3345 static int mlx5e_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
3346 {
3347         struct mlx5e_priv *priv = netdev_priv(dev);
3348
3349         switch (cmd) {
3350         case SIOCSHWTSTAMP:
3351                 return mlx5e_hwstamp_set(priv, ifr);
3352         case SIOCGHWTSTAMP:
3353                 return mlx5e_hwstamp_get(priv, ifr);
3354         default:
3355                 return -EOPNOTSUPP;
3356         }
3357 }
3358
3359 static int mlx5e_set_vf_mac(struct net_device *dev, int vf, u8 *mac)
3360 {
3361         struct mlx5e_priv *priv = netdev_priv(dev);
3362         struct mlx5_core_dev *mdev = priv->mdev;
3363
3364         return mlx5_eswitch_set_vport_mac(mdev->priv.eswitch, vf + 1, mac);
3365 }
3366
3367 static int mlx5e_set_vf_vlan(struct net_device *dev, int vf, u16 vlan, u8 qos,
3368                              __be16 vlan_proto)
3369 {
3370         struct mlx5e_priv *priv = netdev_priv(dev);
3371         struct mlx5_core_dev *mdev = priv->mdev;
3372
3373         if (vlan_proto != htons(ETH_P_8021Q))
3374                 return -EPROTONOSUPPORT;
3375
3376         return mlx5_eswitch_set_vport_vlan(mdev->priv.eswitch, vf + 1,
3377                                            vlan, qos);
3378 }
3379
3380 static int mlx5e_set_vf_spoofchk(struct net_device *dev, int vf, bool setting)
3381 {
3382         struct mlx5e_priv *priv = netdev_priv(dev);
3383         struct mlx5_core_dev *mdev = priv->mdev;
3384
3385         return mlx5_eswitch_set_vport_spoofchk(mdev->priv.eswitch, vf + 1, setting);
3386 }
3387
3388 static int mlx5e_set_vf_trust(struct net_device *dev, int vf, bool setting)
3389 {
3390         struct mlx5e_priv *priv = netdev_priv(dev);
3391         struct mlx5_core_dev *mdev = priv->mdev;
3392
3393         return mlx5_eswitch_set_vport_trust(mdev->priv.eswitch, vf + 1, setting);
3394 }
3395
3396 static int mlx5e_set_vf_rate(struct net_device *dev, int vf, int min_tx_rate,
3397                              int max_tx_rate)
3398 {
3399         struct mlx5e_priv *priv = netdev_priv(dev);
3400         struct mlx5_core_dev *mdev = priv->mdev;
3401
3402         return mlx5_eswitch_set_vport_rate(mdev->priv.eswitch, vf + 1,
3403                                            max_tx_rate, min_tx_rate);
3404 }
3405
3406 static int mlx5_vport_link2ifla(u8 esw_link)
3407 {
3408         switch (esw_link) {
3409         case MLX5_ESW_VPORT_ADMIN_STATE_DOWN:
3410                 return IFLA_VF_LINK_STATE_DISABLE;
3411         case MLX5_ESW_VPORT_ADMIN_STATE_UP:
3412                 return IFLA_VF_LINK_STATE_ENABLE;
3413         }
3414         return IFLA_VF_LINK_STATE_AUTO;
3415 }
3416
3417 static int mlx5_ifla_link2vport(u8 ifla_link)
3418 {
3419         switch (ifla_link) {
3420         case IFLA_VF_LINK_STATE_DISABLE:
3421                 return MLX5_ESW_VPORT_ADMIN_STATE_DOWN;
3422         case IFLA_VF_LINK_STATE_ENABLE:
3423                 return MLX5_ESW_VPORT_ADMIN_STATE_UP;
3424         }
3425         return MLX5_ESW_VPORT_ADMIN_STATE_AUTO;
3426 }
3427
3428 static int mlx5e_set_vf_link_state(struct net_device *dev, int vf,
3429                                    int link_state)
3430 {
3431         struct mlx5e_priv *priv = netdev_priv(dev);
3432         struct mlx5_core_dev *mdev = priv->mdev;
3433
3434         return mlx5_eswitch_set_vport_state(mdev->priv.eswitch, vf + 1,
3435                                             mlx5_ifla_link2vport(link_state));
3436 }
3437
3438 static int mlx5e_get_vf_config(struct net_device *dev,
3439                                int vf, struct ifla_vf_info *ivi)
3440 {
3441         struct mlx5e_priv *priv = netdev_priv(dev);
3442         struct mlx5_core_dev *mdev = priv->mdev;
3443         int err;
3444
3445         err = mlx5_eswitch_get_vport_config(mdev->priv.eswitch, vf + 1, ivi);
3446         if (err)
3447                 return err;
3448         ivi->linkstate = mlx5_vport_link2ifla(ivi->linkstate);
3449         return 0;
3450 }
3451
3452 static int mlx5e_get_vf_stats(struct net_device *dev,
3453                               int vf, struct ifla_vf_stats *vf_stats)
3454 {
3455         struct mlx5e_priv *priv = netdev_priv(dev);
3456         struct mlx5_core_dev *mdev = priv->mdev;
3457
3458         return mlx5_eswitch_get_vport_stats(mdev->priv.eswitch, vf + 1,
3459                                             vf_stats);
3460 }
3461
3462 static void mlx5e_add_vxlan_port(struct net_device *netdev,
3463                                  struct udp_tunnel_info *ti)
3464 {
3465         struct mlx5e_priv *priv = netdev_priv(netdev);
3466
3467         if (ti->type != UDP_TUNNEL_TYPE_VXLAN)
3468                 return;
3469
3470         if (!mlx5e_vxlan_allowed(priv->mdev))
3471                 return;
3472
3473         mlx5e_vxlan_queue_work(priv, ti->sa_family, be16_to_cpu(ti->port), 1);
3474 }
3475
3476 static void mlx5e_del_vxlan_port(struct net_device *netdev,
3477                                  struct udp_tunnel_info *ti)
3478 {
3479         struct mlx5e_priv *priv = netdev_priv(netdev);
3480
3481         if (ti->type != UDP_TUNNEL_TYPE_VXLAN)
3482                 return;
3483
3484         if (!mlx5e_vxlan_allowed(priv->mdev))
3485                 return;
3486
3487         mlx5e_vxlan_queue_work(priv, ti->sa_family, be16_to_cpu(ti->port), 0);
3488 }
3489
3490 static netdev_features_t mlx5e_vxlan_features_check(struct mlx5e_priv *priv,
3491                                                     struct sk_buff *skb,
3492                                                     netdev_features_t features)
3493 {
3494         struct udphdr *udph;
3495         u16 proto;
3496         u16 port = 0;
3497
3498         switch (vlan_get_protocol(skb)) {
3499         case htons(ETH_P_IP):
3500                 proto = ip_hdr(skb)->protocol;
3501                 break;
3502         case htons(ETH_P_IPV6):
3503                 proto = ipv6_hdr(skb)->nexthdr;
3504                 break;
3505         default:
3506                 goto out;
3507         }
3508
3509         if (proto == IPPROTO_UDP) {
3510                 udph = udp_hdr(skb);
3511                 port = be16_to_cpu(udph->dest);
3512         }
3513
3514         /* Verify if UDP port is being offloaded by HW */
3515         if (port && mlx5e_vxlan_lookup_port(priv, port))
3516                 return features;
3517
3518 out:
3519         /* Disable CSUM and GSO if the udp dport is not offloaded by HW */
3520         return features & ~(NETIF_F_CSUM_MASK | NETIF_F_GSO_MASK);
3521 }
3522
3523 static netdev_features_t mlx5e_features_check(struct sk_buff *skb,
3524                                               struct net_device *netdev,
3525                                               netdev_features_t features)
3526 {
3527         struct mlx5e_priv *priv = netdev_priv(netdev);
3528
3529         features = vlan_features_check(skb, features);
3530         features = vxlan_features_check(skb, features);
3531
3532 #ifdef CONFIG_MLX5_EN_IPSEC
3533         if (mlx5e_ipsec_feature_check(skb, netdev, features))
3534                 return features;
3535 #endif
3536
3537         /* Validate if the tunneled packet is being offloaded by HW */
3538         if (skb->encapsulation &&
3539             (features & NETIF_F_CSUM_MASK || features & NETIF_F_GSO_MASK))
3540                 return mlx5e_vxlan_features_check(priv, skb, features);
3541
3542         return features;
3543 }
3544
3545 static void mlx5e_tx_timeout(struct net_device *dev)
3546 {
3547         struct mlx5e_priv *priv = netdev_priv(dev);
3548         bool sched_work = false;
3549         int i;
3550
3551         netdev_err(dev, "TX timeout detected\n");
3552
3553         for (i = 0; i < priv->channels.num * priv->channels.params.num_tc; i++) {
3554                 struct mlx5e_txqsq *sq = priv->txq2sq[i];
3555
3556                 if (!netif_xmit_stopped(netdev_get_tx_queue(dev, i)))
3557                         continue;
3558                 sched_work = true;
3559                 clear_bit(MLX5E_SQ_STATE_ENABLED, &sq->state);
3560                 netdev_err(dev, "TX timeout on queue: %d, SQ: 0x%x, CQ: 0x%x, SQ Cons: 0x%x SQ Prod: 0x%x\n",
3561                            i, sq->sqn, sq->cq.mcq.cqn, sq->cc, sq->pc);
3562         }
3563
3564         if (sched_work && test_bit(MLX5E_STATE_OPENED, &priv->state))
3565                 schedule_work(&priv->tx_timeout_work);
3566 }
3567
3568 static int mlx5e_xdp_set(struct net_device *netdev, struct bpf_prog *prog)
3569 {
3570         struct mlx5e_priv *priv = netdev_priv(netdev);
3571         struct bpf_prog *old_prog;
3572         int err = 0;
3573         bool reset, was_opened;
3574         int i;
3575
3576         mutex_lock(&priv->state_lock);
3577
3578         if ((netdev->features & NETIF_F_LRO) && prog) {
3579                 netdev_warn(netdev, "can't set XDP while LRO is on, disable LRO first\n");
3580                 err = -EINVAL;
3581                 goto unlock;
3582         }
3583
3584         if ((netdev->features & NETIF_F_HW_ESP) && prog) {
3585                 netdev_warn(netdev, "can't set XDP with IPSec offload\n");
3586                 err = -EINVAL;
3587                 goto unlock;
3588         }
3589
3590         was_opened = test_bit(MLX5E_STATE_OPENED, &priv->state);
3591         /* no need for full reset when exchanging programs */
3592         reset = (!priv->channels.params.xdp_prog || !prog);
3593
3594         if (was_opened && reset)
3595                 mlx5e_close_locked(netdev);
3596         if (was_opened && !reset) {
3597                 /* num_channels is invariant here, so we can take the
3598                  * batched reference right upfront.
3599                  */
3600                 prog = bpf_prog_add(prog, priv->channels.num);
3601                 if (IS_ERR(prog)) {
3602                         err = PTR_ERR(prog);
3603                         goto unlock;
3604                 }
3605         }
3606
3607         /* exchange programs, extra prog reference we got from caller
3608          * as long as we don't fail from this point onwards.
3609          */
3610         old_prog = xchg(&priv->channels.params.xdp_prog, prog);
3611         if (old_prog)
3612                 bpf_prog_put(old_prog);
3613
3614         if (reset) /* change RQ type according to priv->xdp_prog */
3615                 mlx5e_set_rq_params(priv->mdev, &priv->channels.params);
3616
3617         if (was_opened && reset)
3618                 mlx5e_open_locked(netdev);
3619
3620         if (!test_bit(MLX5E_STATE_OPENED, &priv->state) || reset)
3621                 goto unlock;
3622
3623         /* exchanging programs w/o reset, we update ref counts on behalf
3624          * of the channels RQs here.
3625          */
3626         for (i = 0; i < priv->channels.num; i++) {
3627                 struct mlx5e_channel *c = priv->channels.c[i];
3628
3629                 clear_bit(MLX5E_RQ_STATE_ENABLED, &c->rq.state);
3630                 napi_synchronize(&c->napi);
3631                 /* prevent mlx5e_poll_rx_cq from accessing rq->xdp_prog */
3632
3633                 old_prog = xchg(&c->rq.xdp_prog, prog);
3634
3635                 set_bit(MLX5E_RQ_STATE_ENABLED, &c->rq.state);
3636                 /* napi_schedule in case we have missed anything */
3637                 set_bit(MLX5E_CHANNEL_NAPI_SCHED, &c->flags);
3638                 napi_schedule(&c->napi);
3639
3640                 if (old_prog)
3641                         bpf_prog_put(old_prog);
3642         }
3643
3644 unlock:
3645         mutex_unlock(&priv->state_lock);
3646         return err;
3647 }
3648
3649 static u32 mlx5e_xdp_query(struct net_device *dev)
3650 {
3651         struct mlx5e_priv *priv = netdev_priv(dev);
3652         const struct bpf_prog *xdp_prog;
3653         u32 prog_id = 0;
3654
3655         mutex_lock(&priv->state_lock);
3656         xdp_prog = priv->channels.params.xdp_prog;
3657         if (xdp_prog)
3658                 prog_id = xdp_prog->aux->id;
3659         mutex_unlock(&priv->state_lock);
3660
3661         return prog_id;
3662 }
3663
3664 static int mlx5e_xdp(struct net_device *dev, struct netdev_xdp *xdp)
3665 {
3666         switch (xdp->command) {
3667         case XDP_SETUP_PROG:
3668                 return mlx5e_xdp_set(dev, xdp->prog);
3669         case XDP_QUERY_PROG:
3670                 xdp->prog_id = mlx5e_xdp_query(dev);
3671                 xdp->prog_attached = !!xdp->prog_id;
3672                 return 0;
3673         default:
3674                 return -EINVAL;
3675         }
3676 }
3677
3678 #ifdef CONFIG_NET_POLL_CONTROLLER
3679 /* Fake "interrupt" called by netpoll (eg netconsole) to send skbs without
3680  * reenabling interrupts.
3681  */
3682 static void mlx5e_netpoll(struct net_device *dev)
3683 {
3684         struct mlx5e_priv *priv = netdev_priv(dev);
3685         struct mlx5e_channels *chs = &priv->channels;
3686
3687         int i;
3688
3689         for (i = 0; i < chs->num; i++)
3690                 napi_schedule(&chs->c[i]->napi);
3691 }
3692 #endif
3693
3694 static const struct net_device_ops mlx5e_netdev_ops_basic = {
3695         .ndo_open                = mlx5e_open,
3696         .ndo_stop                = mlx5e_close,
3697         .ndo_start_xmit          = mlx5e_xmit,
3698         .ndo_setup_tc            = mlx5e_ndo_setup_tc,
3699         .ndo_select_queue        = mlx5e_select_queue,
3700         .ndo_get_stats64         = mlx5e_get_stats,
3701         .ndo_set_rx_mode         = mlx5e_set_rx_mode,
3702         .ndo_set_mac_address     = mlx5e_set_mac,
3703         .ndo_vlan_rx_add_vid     = mlx5e_vlan_rx_add_vid,
3704         .ndo_vlan_rx_kill_vid    = mlx5e_vlan_rx_kill_vid,
3705         .ndo_set_features        = mlx5e_set_features,
3706         .ndo_change_mtu          = mlx5e_change_mtu,
3707         .ndo_do_ioctl            = mlx5e_ioctl,
3708         .ndo_set_tx_maxrate      = mlx5e_set_tx_maxrate,
3709 #ifdef CONFIG_RFS_ACCEL
3710         .ndo_rx_flow_steer       = mlx5e_rx_flow_steer,
3711 #endif
3712         .ndo_tx_timeout          = mlx5e_tx_timeout,
3713         .ndo_xdp                 = mlx5e_xdp,
3714 #ifdef CONFIG_NET_POLL_CONTROLLER
3715         .ndo_poll_controller     = mlx5e_netpoll,
3716 #endif
3717 };
3718
3719 static const struct net_device_ops mlx5e_netdev_ops_sriov = {
3720         .ndo_open                = mlx5e_open,
3721         .ndo_stop                = mlx5e_close,
3722         .ndo_start_xmit          = mlx5e_xmit,
3723         .ndo_setup_tc            = mlx5e_ndo_setup_tc,
3724         .ndo_select_queue        = mlx5e_select_queue,
3725         .ndo_get_stats64         = mlx5e_get_stats,
3726         .ndo_set_rx_mode         = mlx5e_set_rx_mode,
3727         .ndo_set_mac_address     = mlx5e_set_mac,
3728         .ndo_vlan_rx_add_vid     = mlx5e_vlan_rx_add_vid,
3729         .ndo_vlan_rx_kill_vid    = mlx5e_vlan_rx_kill_vid,
3730         .ndo_set_features        = mlx5e_set_features,
3731         .ndo_change_mtu          = mlx5e_change_mtu,
3732         .ndo_do_ioctl            = mlx5e_ioctl,
3733         .ndo_udp_tunnel_add      = mlx5e_add_vxlan_port,
3734         .ndo_udp_tunnel_del      = mlx5e_del_vxlan_port,
3735         .ndo_set_tx_maxrate      = mlx5e_set_tx_maxrate,
3736         .ndo_features_check      = mlx5e_features_check,
3737 #ifdef CONFIG_RFS_ACCEL
3738         .ndo_rx_flow_steer       = mlx5e_rx_flow_steer,
3739 #endif
3740         .ndo_set_vf_mac          = mlx5e_set_vf_mac,
3741         .ndo_set_vf_vlan         = mlx5e_set_vf_vlan,
3742         .ndo_set_vf_spoofchk     = mlx5e_set_vf_spoofchk,
3743         .ndo_set_vf_trust        = mlx5e_set_vf_trust,
3744         .ndo_set_vf_rate         = mlx5e_set_vf_rate,
3745         .ndo_get_vf_config       = mlx5e_get_vf_config,
3746         .ndo_set_vf_link_state   = mlx5e_set_vf_link_state,
3747         .ndo_get_vf_stats        = mlx5e_get_vf_stats,
3748         .ndo_tx_timeout          = mlx5e_tx_timeout,
3749         .ndo_xdp                 = mlx5e_xdp,
3750 #ifdef CONFIG_NET_POLL_CONTROLLER
3751         .ndo_poll_controller     = mlx5e_netpoll,
3752 #endif
3753         .ndo_has_offload_stats   = mlx5e_has_offload_stats,
3754         .ndo_get_offload_stats   = mlx5e_get_offload_stats,
3755 };
3756
3757 static int mlx5e_check_required_hca_cap(struct mlx5_core_dev *mdev)
3758 {
3759         if (MLX5_CAP_GEN(mdev, port_type) != MLX5_CAP_PORT_TYPE_ETH)
3760                 return -EOPNOTSUPP;
3761         if (!MLX5_CAP_GEN(mdev, eth_net_offloads) ||
3762             !MLX5_CAP_GEN(mdev, nic_flow_table) ||
3763             !MLX5_CAP_ETH(mdev, csum_cap) ||
3764             !MLX5_CAP_ETH(mdev, max_lso_cap) ||
3765             !MLX5_CAP_ETH(mdev, vlan_cap) ||
3766             !MLX5_CAP_ETH(mdev, rss_ind_tbl_cap) ||
3767             MLX5_CAP_FLOWTABLE(mdev,
3768                                flow_table_properties_nic_receive.max_ft_level)
3769                                < 3) {
3770                 mlx5_core_warn(mdev,
3771                                "Not creating net device, some required device capabilities are missing\n");
3772                 return -EOPNOTSUPP;
3773         }
3774         if (!MLX5_CAP_ETH(mdev, self_lb_en_modifiable))
3775                 mlx5_core_warn(mdev, "Self loop back prevention is not supported\n");
3776         if (!MLX5_CAP_GEN(mdev, cq_moderation))
3777                 mlx5_core_warn(mdev, "CQ moderation is not supported\n");
3778
3779         return 0;
3780 }
3781
3782 u16 mlx5e_get_max_inline_cap(struct mlx5_core_dev *mdev)
3783 {
3784         int bf_buf_size = (1 << MLX5_CAP_GEN(mdev, log_bf_reg_size)) / 2;
3785
3786         return bf_buf_size -
3787                sizeof(struct mlx5e_tx_wqe) +
3788                2 /*sizeof(mlx5e_tx_wqe.inline_hdr_start)*/;
3789 }
3790
3791 void mlx5e_build_default_indir_rqt(struct mlx5_core_dev *mdev,
3792                                    u32 *indirection_rqt, int len,
3793                                    int num_channels)
3794 {
3795         int node = mdev->priv.numa_node;
3796         int node_num_of_cores;
3797         int i;
3798
3799         if (node == -1)
3800                 node = first_online_node;
3801
3802         node_num_of_cores = cpumask_weight(cpumask_of_node(node));
3803
3804         if (node_num_of_cores)
3805                 num_channels = min_t(int, num_channels, node_num_of_cores);
3806
3807         for (i = 0; i < len; i++)
3808                 indirection_rqt[i] = i % num_channels;
3809 }
3810
3811 static int mlx5e_get_pci_bw(struct mlx5_core_dev *mdev, u32 *pci_bw)
3812 {
3813         enum pcie_link_width width;
3814         enum pci_bus_speed speed;
3815         int err = 0;
3816
3817         err = pcie_get_minimum_link(mdev->pdev, &speed, &width);
3818         if (err)
3819                 return err;
3820
3821         if (speed == PCI_SPEED_UNKNOWN || width == PCIE_LNK_WIDTH_UNKNOWN)
3822                 return -EINVAL;
3823
3824         switch (speed) {
3825         case PCIE_SPEED_2_5GT:
3826                 *pci_bw = 2500 * width;
3827                 break;
3828         case PCIE_SPEED_5_0GT:
3829                 *pci_bw = 5000 * width;
3830                 break;
3831         case PCIE_SPEED_8_0GT:
3832                 *pci_bw = 8000 * width;
3833                 break;
3834         default:
3835                 return -EINVAL;
3836         }
3837
3838         return 0;
3839 }
3840
3841 static bool cqe_compress_heuristic(u32 link_speed, u32 pci_bw)
3842 {
3843         return (link_speed && pci_bw &&
3844                 (pci_bw < 40000) && (pci_bw < link_speed));
3845 }
3846
3847 static bool hw_lro_heuristic(u32 link_speed, u32 pci_bw)
3848 {
3849         return !(link_speed && pci_bw &&
3850                  (pci_bw <= 16000) && (pci_bw < link_speed));
3851 }
3852
3853 void mlx5e_set_rx_cq_mode_params(struct mlx5e_params *params, u8 cq_period_mode)
3854 {
3855         params->rx_cq_period_mode = cq_period_mode;
3856
3857         params->rx_cq_moderation.pkts =
3858                 MLX5E_PARAMS_DEFAULT_RX_CQ_MODERATION_PKTS;
3859         params->rx_cq_moderation.usec =
3860                         MLX5E_PARAMS_DEFAULT_RX_CQ_MODERATION_USEC;
3861
3862         if (cq_period_mode == MLX5_CQ_PERIOD_MODE_START_FROM_CQE)
3863                 params->rx_cq_moderation.usec =
3864                         MLX5E_PARAMS_DEFAULT_RX_CQ_MODERATION_USEC_FROM_CQE;
3865
3866         if (params->rx_am_enabled)
3867                 params->rx_cq_moderation =
3868                         mlx5e_am_get_def_profile(params->rx_cq_period_mode);
3869
3870         MLX5E_SET_PFLAG(params, MLX5E_PFLAG_RX_CQE_BASED_MODER,
3871                         params->rx_cq_period_mode == MLX5_CQ_PERIOD_MODE_START_FROM_CQE);
3872 }
3873
3874 u32 mlx5e_choose_lro_timeout(struct mlx5_core_dev *mdev, u32 wanted_timeout)
3875 {
3876         int i;
3877
3878         /* The supported periods are organized in ascending order */
3879         for (i = 0; i < MLX5E_LRO_TIMEOUT_ARR_SIZE - 1; i++)
3880                 if (MLX5_CAP_ETH(mdev, lro_timer_supported_periods[i]) >= wanted_timeout)
3881                         break;
3882
3883         return MLX5_CAP_ETH(mdev, lro_timer_supported_periods[i]);
3884 }
3885
3886 void mlx5e_build_nic_params(struct mlx5_core_dev *mdev,
3887                             struct mlx5e_params *params,
3888                             u16 max_channels)
3889 {
3890         u8 cq_period_mode = 0;
3891         u32 link_speed = 0;
3892         u32 pci_bw = 0;
3893
3894         params->num_channels = max_channels;
3895         params->num_tc       = 1;
3896
3897         mlx5e_get_max_linkspeed(mdev, &link_speed);
3898         mlx5e_get_pci_bw(mdev, &pci_bw);
3899         mlx5_core_dbg(mdev, "Max link speed = %d, PCI BW = %d\n",
3900                       link_speed, pci_bw);
3901
3902         /* SQ */
3903         params->log_sq_size = is_kdump_kernel() ?
3904                 MLX5E_PARAMS_MINIMUM_LOG_SQ_SIZE :
3905                 MLX5E_PARAMS_DEFAULT_LOG_SQ_SIZE;
3906
3907         /* set CQE compression */
3908         params->rx_cqe_compress_def = false;
3909         if (MLX5_CAP_GEN(mdev, cqe_compression) &&
3910             MLX5_CAP_GEN(mdev, vport_group_manager))
3911                 params->rx_cqe_compress_def = cqe_compress_heuristic(link_speed, pci_bw);
3912
3913         MLX5E_SET_PFLAG(params, MLX5E_PFLAG_RX_CQE_COMPRESS, params->rx_cqe_compress_def);
3914
3915         /* RQ */
3916         mlx5e_set_rq_params(mdev, params);
3917
3918         /* HW LRO */
3919
3920         /* TODO: && MLX5_CAP_ETH(mdev, lro_cap) */
3921         if (params->rq_wq_type == MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ)
3922                 params->lro_en = hw_lro_heuristic(link_speed, pci_bw);
3923         params->lro_timeout = mlx5e_choose_lro_timeout(mdev, MLX5E_DEFAULT_LRO_TIMEOUT);
3924
3925         /* CQ moderation params */
3926         cq_period_mode = MLX5_CAP_GEN(mdev, cq_period_start_from_cqe) ?
3927                         MLX5_CQ_PERIOD_MODE_START_FROM_CQE :
3928                         MLX5_CQ_PERIOD_MODE_START_FROM_EQE;
3929         params->rx_am_enabled = MLX5_CAP_GEN(mdev, cq_moderation);
3930         mlx5e_set_rx_cq_mode_params(params, cq_period_mode);
3931
3932         params->tx_cq_moderation.usec = MLX5E_PARAMS_DEFAULT_TX_CQ_MODERATION_USEC;
3933         params->tx_cq_moderation.pkts = MLX5E_PARAMS_DEFAULT_TX_CQ_MODERATION_PKTS;
3934
3935         /* TX inline */
3936         params->tx_max_inline = mlx5e_get_max_inline_cap(mdev);
3937         mlx5_query_min_inline(mdev, &params->tx_min_inline_mode);
3938         if (params->tx_min_inline_mode == MLX5_INLINE_MODE_NONE &&
3939             !MLX5_CAP_ETH(mdev, wqe_vlan_insert))
3940                 params->tx_min_inline_mode = MLX5_INLINE_MODE_L2;
3941
3942         /* RSS */
3943         params->rss_hfunc = ETH_RSS_HASH_XOR;
3944         netdev_rss_key_fill(params->toeplitz_hash_key, sizeof(params->toeplitz_hash_key));
3945         mlx5e_build_default_indir_rqt(mdev, params->indirection_rqt,
3946                                       MLX5E_INDIR_RQT_SIZE, max_channels);
3947 }
3948
3949 static void mlx5e_build_nic_netdev_priv(struct mlx5_core_dev *mdev,
3950                                         struct net_device *netdev,
3951                                         const struct mlx5e_profile *profile,
3952                                         void *ppriv)
3953 {
3954         struct mlx5e_priv *priv = netdev_priv(netdev);
3955
3956         priv->mdev        = mdev;
3957         priv->netdev      = netdev;
3958         priv->profile     = profile;
3959         priv->ppriv       = ppriv;
3960         priv->hard_mtu = MLX5E_ETH_HARD_MTU;
3961
3962         mlx5e_build_nic_params(mdev, &priv->channels.params, profile->max_nch(mdev));
3963
3964         mutex_init(&priv->state_lock);
3965
3966         INIT_WORK(&priv->update_carrier_work, mlx5e_update_carrier_work);
3967         INIT_WORK(&priv->set_rx_mode_work, mlx5e_set_rx_mode_work);
3968         INIT_WORK(&priv->tx_timeout_work, mlx5e_tx_timeout_work);
3969         INIT_DELAYED_WORK(&priv->update_stats_work, mlx5e_update_stats_work);
3970 }
3971
3972 static void mlx5e_set_netdev_dev_addr(struct net_device *netdev)
3973 {
3974         struct mlx5e_priv *priv = netdev_priv(netdev);
3975
3976         mlx5_query_nic_vport_mac_address(priv->mdev, 0, netdev->dev_addr);
3977         if (is_zero_ether_addr(netdev->dev_addr) &&
3978             !MLX5_CAP_GEN(priv->mdev, vport_group_manager)) {
3979                 eth_hw_addr_random(netdev);
3980                 mlx5_core_info(priv->mdev, "Assigned random MAC address %pM\n", netdev->dev_addr);
3981         }
3982 }
3983
3984 static const struct switchdev_ops mlx5e_switchdev_ops = {
3985         .switchdev_port_attr_get        = mlx5e_attr_get,
3986 };
3987
3988 static void mlx5e_build_nic_netdev(struct net_device *netdev)
3989 {
3990         struct mlx5e_priv *priv = netdev_priv(netdev);
3991         struct mlx5_core_dev *mdev = priv->mdev;
3992         bool fcs_supported;
3993         bool fcs_enabled;
3994
3995         SET_NETDEV_DEV(netdev, &mdev->pdev->dev);
3996
3997         if (MLX5_CAP_GEN(mdev, vport_group_manager)) {
3998                 netdev->netdev_ops = &mlx5e_netdev_ops_sriov;
3999 #ifdef CONFIG_MLX5_CORE_EN_DCB
4000                 if (MLX5_CAP_GEN(mdev, qos))
4001                         netdev->dcbnl_ops = &mlx5e_dcbnl_ops;
4002 #endif
4003         } else {
4004                 netdev->netdev_ops = &mlx5e_netdev_ops_basic;
4005         }
4006
4007         netdev->watchdog_timeo    = 15 * HZ;
4008
4009         netdev->ethtool_ops       = &mlx5e_ethtool_ops;
4010
4011         netdev->vlan_features    |= NETIF_F_SG;
4012         netdev->vlan_features    |= NETIF_F_IP_CSUM;
4013         netdev->vlan_features    |= NETIF_F_IPV6_CSUM;
4014         netdev->vlan_features    |= NETIF_F_GRO;
4015         netdev->vlan_features    |= NETIF_F_TSO;
4016         netdev->vlan_features    |= NETIF_F_TSO6;
4017         netdev->vlan_features    |= NETIF_F_RXCSUM;
4018         netdev->vlan_features    |= NETIF_F_RXHASH;
4019
4020         if (!!MLX5_CAP_ETH(mdev, lro_cap))
4021                 netdev->vlan_features    |= NETIF_F_LRO;
4022
4023         netdev->hw_features       = netdev->vlan_features;
4024         netdev->hw_features      |= NETIF_F_HW_VLAN_CTAG_TX;
4025         netdev->hw_features      |= NETIF_F_HW_VLAN_CTAG_RX;
4026         netdev->hw_features      |= NETIF_F_HW_VLAN_CTAG_FILTER;
4027
4028         if (mlx5e_vxlan_allowed(mdev)) {
4029                 netdev->hw_features     |= NETIF_F_GSO_UDP_TUNNEL |
4030                                            NETIF_F_GSO_UDP_TUNNEL_CSUM |
4031                                            NETIF_F_GSO_PARTIAL;
4032                 netdev->hw_enc_features |= NETIF_F_IP_CSUM;
4033                 netdev->hw_enc_features |= NETIF_F_IPV6_CSUM;
4034                 netdev->hw_enc_features |= NETIF_F_TSO;
4035                 netdev->hw_enc_features |= NETIF_F_TSO6;
4036                 netdev->hw_enc_features |= NETIF_F_GSO_UDP_TUNNEL;
4037                 netdev->hw_enc_features |= NETIF_F_GSO_UDP_TUNNEL_CSUM |
4038                                            NETIF_F_GSO_PARTIAL;
4039                 netdev->gso_partial_features = NETIF_F_GSO_UDP_TUNNEL_CSUM;
4040         }
4041
4042         mlx5_query_port_fcs(mdev, &fcs_supported, &fcs_enabled);
4043
4044         if (fcs_supported)
4045                 netdev->hw_features |= NETIF_F_RXALL;
4046
4047         if (MLX5_CAP_ETH(mdev, scatter_fcs))
4048                 netdev->hw_features |= NETIF_F_RXFCS;
4049
4050         netdev->features          = netdev->hw_features;
4051         if (!priv->channels.params.lro_en)
4052                 netdev->features  &= ~NETIF_F_LRO;
4053
4054         if (fcs_enabled)
4055                 netdev->features  &= ~NETIF_F_RXALL;
4056
4057         if (!priv->channels.params.scatter_fcs_en)
4058                 netdev->features  &= ~NETIF_F_RXFCS;
4059
4060 #define FT_CAP(f) MLX5_CAP_FLOWTABLE(mdev, flow_table_properties_nic_receive.f)
4061         if (FT_CAP(flow_modify_en) &&
4062             FT_CAP(modify_root) &&
4063             FT_CAP(identified_miss_table_mode) &&
4064             FT_CAP(flow_table_modify)) {
4065                 netdev->hw_features      |= NETIF_F_HW_TC;
4066 #ifdef CONFIG_RFS_ACCEL
4067                 netdev->hw_features      |= NETIF_F_NTUPLE;
4068 #endif
4069         }
4070
4071         netdev->features         |= NETIF_F_HIGHDMA;
4072
4073         netdev->priv_flags       |= IFF_UNICAST_FLT;
4074
4075         mlx5e_set_netdev_dev_addr(netdev);
4076
4077 #ifdef CONFIG_NET_SWITCHDEV
4078         if (MLX5_CAP_GEN(mdev, vport_group_manager))
4079                 netdev->switchdev_ops = &mlx5e_switchdev_ops;
4080 #endif
4081
4082         mlx5e_ipsec_build_netdev(priv);
4083 }
4084
4085 static void mlx5e_create_q_counter(struct mlx5e_priv *priv)
4086 {
4087         struct mlx5_core_dev *mdev = priv->mdev;
4088         int err;
4089
4090         err = mlx5_core_alloc_q_counter(mdev, &priv->q_counter);
4091         if (err) {
4092                 mlx5_core_warn(mdev, "alloc queue counter failed, %d\n", err);
4093                 priv->q_counter = 0;
4094         }
4095 }
4096
4097 static void mlx5e_destroy_q_counter(struct mlx5e_priv *priv)
4098 {
4099         if (!priv->q_counter)
4100                 return;
4101
4102         mlx5_core_dealloc_q_counter(priv->mdev, priv->q_counter);
4103 }
4104
4105 static void mlx5e_nic_init(struct mlx5_core_dev *mdev,
4106                            struct net_device *netdev,
4107                            const struct mlx5e_profile *profile,
4108                            void *ppriv)
4109 {
4110         struct mlx5e_priv *priv = netdev_priv(netdev);
4111         int err;
4112
4113         mlx5e_build_nic_netdev_priv(mdev, netdev, profile, ppriv);
4114         err = mlx5e_ipsec_init(priv);
4115         if (err)
4116                 mlx5_core_err(mdev, "IPSec initialization failed, %d\n", err);
4117         mlx5e_build_nic_netdev(netdev);
4118         mlx5e_vxlan_init(priv);
4119 }
4120
4121 static void mlx5e_nic_cleanup(struct mlx5e_priv *priv)
4122 {
4123         mlx5e_ipsec_cleanup(priv);
4124         mlx5e_vxlan_cleanup(priv);
4125
4126         if (priv->channels.params.xdp_prog)
4127                 bpf_prog_put(priv->channels.params.xdp_prog);
4128 }
4129
4130 static int mlx5e_init_nic_rx(struct mlx5e_priv *priv)
4131 {
4132         struct mlx5_core_dev *mdev = priv->mdev;
4133         int err;
4134
4135         err = mlx5e_create_indirect_rqt(priv);
4136         if (err)
4137                 return err;
4138
4139         err = mlx5e_create_direct_rqts(priv);
4140         if (err)
4141                 goto err_destroy_indirect_rqts;
4142
4143         err = mlx5e_create_indirect_tirs(priv);
4144         if (err)
4145                 goto err_destroy_direct_rqts;
4146
4147         err = mlx5e_create_direct_tirs(priv);
4148         if (err)
4149                 goto err_destroy_indirect_tirs;
4150
4151         err = mlx5e_create_flow_steering(priv);
4152         if (err) {
4153                 mlx5_core_warn(mdev, "create flow steering failed, %d\n", err);
4154                 goto err_destroy_direct_tirs;
4155         }
4156
4157         err = mlx5e_tc_init(priv);
4158         if (err)
4159                 goto err_destroy_flow_steering;
4160
4161         return 0;
4162
4163 err_destroy_flow_steering:
4164         mlx5e_destroy_flow_steering(priv);
4165 err_destroy_direct_tirs:
4166         mlx5e_destroy_direct_tirs(priv);
4167 err_destroy_indirect_tirs:
4168         mlx5e_destroy_indirect_tirs(priv);
4169 err_destroy_direct_rqts:
4170         mlx5e_destroy_direct_rqts(priv);
4171 err_destroy_indirect_rqts:
4172         mlx5e_destroy_rqt(priv, &priv->indir_rqt);
4173         return err;
4174 }
4175
4176 static void mlx5e_cleanup_nic_rx(struct mlx5e_priv *priv)
4177 {
4178         mlx5e_tc_cleanup(priv);
4179         mlx5e_destroy_flow_steering(priv);
4180         mlx5e_destroy_direct_tirs(priv);
4181         mlx5e_destroy_indirect_tirs(priv);
4182         mlx5e_destroy_direct_rqts(priv);
4183         mlx5e_destroy_rqt(priv, &priv->indir_rqt);
4184 }
4185
4186 static int mlx5e_init_nic_tx(struct mlx5e_priv *priv)
4187 {
4188         int err;
4189
4190         err = mlx5e_create_tises(priv);
4191         if (err) {
4192                 mlx5_core_warn(priv->mdev, "create tises failed, %d\n", err);
4193                 return err;
4194         }
4195
4196 #ifdef CONFIG_MLX5_CORE_EN_DCB
4197         mlx5e_dcbnl_initialize(priv);
4198 #endif
4199         return 0;
4200 }
4201
4202 static void mlx5e_nic_enable(struct mlx5e_priv *priv)
4203 {
4204         struct net_device *netdev = priv->netdev;
4205         struct mlx5_core_dev *mdev = priv->mdev;
4206         u16 max_mtu;
4207
4208         mlx5e_init_l2_addr(priv);
4209
4210         /* MTU range: 68 - hw-specific max */
4211         netdev->min_mtu = ETH_MIN_MTU;
4212         mlx5_query_port_max_mtu(priv->mdev, &max_mtu, 1);
4213         netdev->max_mtu = MLX5E_HW2SW_MTU(priv, max_mtu);
4214         mlx5e_set_dev_port_mtu(priv);
4215
4216         mlx5_lag_add(mdev, netdev);
4217
4218         mlx5e_enable_async_events(priv);
4219
4220         if (MLX5_CAP_GEN(mdev, vport_group_manager))
4221                 mlx5e_register_vport_reps(priv);
4222
4223         if (netdev->reg_state != NETREG_REGISTERED)
4224                 return;
4225
4226         /* Device already registered: sync netdev system state */
4227         if (mlx5e_vxlan_allowed(mdev)) {
4228                 rtnl_lock();
4229                 udp_tunnel_get_rx_info(netdev);
4230                 rtnl_unlock();
4231         }
4232
4233         queue_work(priv->wq, &priv->set_rx_mode_work);
4234
4235         rtnl_lock();
4236         if (netif_running(netdev))
4237                 mlx5e_open(netdev);
4238         netif_device_attach(netdev);
4239         rtnl_unlock();
4240 }
4241
4242 static void mlx5e_nic_disable(struct mlx5e_priv *priv)
4243 {
4244         struct mlx5_core_dev *mdev = priv->mdev;
4245
4246         rtnl_lock();
4247         if (netif_running(priv->netdev))
4248                 mlx5e_close(priv->netdev);
4249         netif_device_detach(priv->netdev);
4250         rtnl_unlock();
4251
4252         queue_work(priv->wq, &priv->set_rx_mode_work);
4253
4254         if (MLX5_CAP_GEN(mdev, vport_group_manager))
4255                 mlx5e_unregister_vport_reps(priv);
4256
4257         mlx5e_disable_async_events(priv);
4258         mlx5_lag_remove(mdev);
4259 }
4260
4261 static const struct mlx5e_profile mlx5e_nic_profile = {
4262         .init              = mlx5e_nic_init,
4263         .cleanup           = mlx5e_nic_cleanup,
4264         .init_rx           = mlx5e_init_nic_rx,
4265         .cleanup_rx        = mlx5e_cleanup_nic_rx,
4266         .init_tx           = mlx5e_init_nic_tx,
4267         .cleanup_tx        = mlx5e_cleanup_nic_tx,
4268         .enable            = mlx5e_nic_enable,
4269         .disable           = mlx5e_nic_disable,
4270         .update_stats      = mlx5e_update_ndo_stats,
4271         .max_nch           = mlx5e_get_max_num_channels,
4272         .update_carrier    = mlx5e_update_carrier,
4273         .rx_handlers.handle_rx_cqe       = mlx5e_handle_rx_cqe,
4274         .rx_handlers.handle_rx_cqe_mpwqe = mlx5e_handle_rx_cqe_mpwrq,
4275         .max_tc            = MLX5E_MAX_NUM_TC,
4276 };
4277
4278 /* mlx5e generic netdev management API (move to en_common.c) */
4279
4280 struct net_device *mlx5e_create_netdev(struct mlx5_core_dev *mdev,
4281                                        const struct mlx5e_profile *profile,
4282                                        void *ppriv)
4283 {
4284         int nch = profile->max_nch(mdev);
4285         struct net_device *netdev;
4286         struct mlx5e_priv *priv;
4287
4288         netdev = alloc_etherdev_mqs(sizeof(struct mlx5e_priv),
4289                                     nch * profile->max_tc,
4290                                     nch);
4291         if (!netdev) {
4292                 mlx5_core_err(mdev, "alloc_etherdev_mqs() failed\n");
4293                 return NULL;
4294         }
4295
4296 #ifdef CONFIG_RFS_ACCEL
4297         netdev->rx_cpu_rmap = mdev->rmap;
4298 #endif
4299
4300         profile->init(mdev, netdev, profile, ppriv);
4301
4302         netif_carrier_off(netdev);
4303
4304         priv = netdev_priv(netdev);
4305
4306         priv->wq = create_singlethread_workqueue("mlx5e");
4307         if (!priv->wq)
4308                 goto err_cleanup_nic;
4309
4310         return netdev;
4311
4312 err_cleanup_nic:
4313         if (profile->cleanup)
4314                 profile->cleanup(priv);
4315         free_netdev(netdev);
4316
4317         return NULL;
4318 }
4319
4320 int mlx5e_attach_netdev(struct mlx5e_priv *priv)
4321 {
4322         struct mlx5_core_dev *mdev = priv->mdev;
4323         const struct mlx5e_profile *profile;
4324         int err;
4325
4326         profile = priv->profile;
4327         clear_bit(MLX5E_STATE_DESTROYING, &priv->state);
4328
4329         err = profile->init_tx(priv);
4330         if (err)
4331                 goto out;
4332
4333         err = mlx5e_open_drop_rq(mdev, &priv->drop_rq);
4334         if (err) {
4335                 mlx5_core_err(mdev, "open drop rq failed, %d\n", err);
4336                 goto err_cleanup_tx;
4337         }
4338
4339         err = profile->init_rx(priv);
4340         if (err)
4341                 goto err_close_drop_rq;
4342
4343         mlx5e_create_q_counter(priv);
4344
4345         if (profile->enable)
4346                 profile->enable(priv);
4347
4348         return 0;
4349
4350 err_close_drop_rq:
4351         mlx5e_close_drop_rq(&priv->drop_rq);
4352
4353 err_cleanup_tx:
4354         profile->cleanup_tx(priv);
4355
4356 out:
4357         return err;
4358 }
4359
4360 void mlx5e_detach_netdev(struct mlx5e_priv *priv)
4361 {
4362         const struct mlx5e_profile *profile = priv->profile;
4363
4364         set_bit(MLX5E_STATE_DESTROYING, &priv->state);
4365
4366         if (profile->disable)
4367                 profile->disable(priv);
4368         flush_workqueue(priv->wq);
4369
4370         mlx5e_destroy_q_counter(priv);
4371         profile->cleanup_rx(priv);
4372         mlx5e_close_drop_rq(&priv->drop_rq);
4373         profile->cleanup_tx(priv);
4374         cancel_delayed_work_sync(&priv->update_stats_work);
4375 }
4376
4377 void mlx5e_destroy_netdev(struct mlx5e_priv *priv)
4378 {
4379         const struct mlx5e_profile *profile = priv->profile;
4380         struct net_device *netdev = priv->netdev;
4381
4382         destroy_workqueue(priv->wq);
4383         if (profile->cleanup)
4384                 profile->cleanup(priv);
4385         free_netdev(netdev);
4386 }
4387
4388 /* mlx5e_attach and mlx5e_detach scope should be only creating/destroying
4389  * hardware contexts and to connect it to the current netdev.
4390  */
4391 static int mlx5e_attach(struct mlx5_core_dev *mdev, void *vpriv)
4392 {
4393         struct mlx5e_priv *priv = vpriv;
4394         struct net_device *netdev = priv->netdev;
4395         int err;
4396
4397         if (netif_device_present(netdev))
4398                 return 0;
4399
4400         err = mlx5e_create_mdev_resources(mdev);
4401         if (err)
4402                 return err;
4403
4404         err = mlx5e_attach_netdev(priv);
4405         if (err) {
4406                 mlx5e_destroy_mdev_resources(mdev);
4407                 return err;
4408         }
4409
4410         return 0;
4411 }
4412
4413 static void mlx5e_detach(struct mlx5_core_dev *mdev, void *vpriv)
4414 {
4415         struct mlx5e_priv *priv = vpriv;
4416         struct net_device *netdev = priv->netdev;
4417
4418         if (!netif_device_present(netdev))
4419                 return;
4420
4421         mlx5e_detach_netdev(priv);
4422         mlx5e_destroy_mdev_resources(mdev);
4423 }
4424
4425 static void *mlx5e_add(struct mlx5_core_dev *mdev)
4426 {
4427         struct mlx5_eswitch *esw = mdev->priv.eswitch;
4428         int total_vfs = MLX5_TOTAL_VPORTS(mdev);
4429         struct mlx5e_rep_priv *rpriv = NULL;
4430         void *priv;
4431         int vport;
4432         int err;
4433         struct net_device *netdev;
4434
4435         err = mlx5e_check_required_hca_cap(mdev);
4436         if (err)
4437                 return NULL;
4438
4439         if (MLX5_CAP_GEN(mdev, vport_group_manager)) {
4440                 rpriv = kzalloc(sizeof(*rpriv), GFP_KERNEL);
4441                 if (!rpriv) {
4442                         mlx5_core_warn(mdev,
4443                                        "Not creating net device, Failed to alloc rep priv data\n");
4444                         return NULL;
4445                 }
4446                 rpriv->rep = &esw->offloads.vport_reps[0];
4447         }
4448
4449         netdev = mlx5e_create_netdev(mdev, &mlx5e_nic_profile, rpriv);
4450         if (!netdev) {
4451                 mlx5_core_err(mdev, "mlx5e_create_netdev failed\n");
4452                 goto err_unregister_reps;
4453         }
4454
4455         priv = netdev_priv(netdev);
4456
4457         err = mlx5e_attach(mdev, priv);
4458         if (err) {
4459                 mlx5_core_err(mdev, "mlx5e_attach failed, %d\n", err);
4460                 goto err_destroy_netdev;
4461         }
4462
4463         err = register_netdev(netdev);
4464         if (err) {
4465                 mlx5_core_err(mdev, "register_netdev failed, %d\n", err);
4466                 goto err_detach;
4467         }
4468
4469         return priv;
4470
4471 err_detach:
4472         mlx5e_detach(mdev, priv);
4473
4474 err_destroy_netdev:
4475         mlx5e_destroy_netdev(priv);
4476
4477 err_unregister_reps:
4478         for (vport = 1; vport < total_vfs; vport++)
4479                 mlx5_eswitch_unregister_vport_rep(esw, vport);
4480
4481         kfree(rpriv);
4482         return NULL;
4483 }
4484
4485 static void mlx5e_remove(struct mlx5_core_dev *mdev, void *vpriv)
4486 {
4487         struct mlx5e_priv *priv = vpriv;
4488         void *ppriv = priv->ppriv;
4489
4490         unregister_netdev(priv->netdev);
4491         mlx5e_detach(mdev, vpriv);
4492         mlx5e_destroy_netdev(priv);
4493         kfree(ppriv);
4494 }
4495
4496 static void *mlx5e_get_netdev(void *vpriv)
4497 {
4498         struct mlx5e_priv *priv = vpriv;
4499
4500         return priv->netdev;
4501 }
4502
4503 static struct mlx5_interface mlx5e_interface = {
4504         .add       = mlx5e_add,
4505         .remove    = mlx5e_remove,
4506         .attach    = mlx5e_attach,
4507         .detach    = mlx5e_detach,
4508         .event     = mlx5e_async_event,
4509         .protocol  = MLX5_INTERFACE_PROTOCOL_ETH,
4510         .get_dev   = mlx5e_get_netdev,
4511 };
4512
4513 void mlx5e_init(void)
4514 {
4515         mlx5e_ipsec_build_inverse_table();
4516         mlx5e_build_ptys2ethtool_map();
4517         mlx5_register_interface(&mlx5e_interface);
4518 }
4519
4520 void mlx5e_cleanup(void)
4521 {
4522         mlx5_unregister_interface(&mlx5e_interface);
4523 }