sys/dev/mlx5/mlx5_en/mlx5_en_main.c

   1 /*-
   2  * Copyright (c) 2015 Mellanox Technologies. All rights reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions
   6  * are met:
   7  * 1. Redistributions of source code must retain the above copyright
   8  *    notice, this list of conditions and the following disclaimer.
   9  * 2. Redistributions in binary form must reproduce the above copyright
  10  *    notice, this list of conditions and the following disclaimer in the
  11  *    documentation and/or other materials provided with the distribution.
  12  *
  13  * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS `AS IS' AND
  14  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  16  * ARE DISCLAIMED.  IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
  17  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  18  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  19  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  20  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  21  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  22  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  23  * SUCH DAMAGE.
  24  *
  25  * $FreeBSD$
  26  */
  27
  28 #include "en.h"
  29
  30 #include <sys/sockio.h>
  31 #include <machine/atomic.h>
  32
  33 #define ETH_DRIVER_VERSION      "3.1.0-dev"
  34 char mlx5e_version[] = "Mellanox Ethernet driver"
  35     " (" ETH_DRIVER_VERSION ")";
  36
  37 struct mlx5e_channel_param {
  38         struct mlx5e_rq_param rq;
  39         struct mlx5e_sq_param sq;
  40         struct mlx5e_cq_param rx_cq;
  41         struct mlx5e_cq_param tx_cq;
  42 };
  43
  44 static const struct {
  45         u32     subtype;
  46         u64     baudrate;
  47 }       mlx5e_mode_table[MLX5E_LINK_MODES_NUMBER] = {
  48
  49         [MLX5E_1000BASE_CX_SGMII] = {
  50                 .subtype = IFM_1000_CX_SGMII,
  51                 .baudrate = IF_Mbps(1000ULL),
  52         },
  53         [MLX5E_1000BASE_KX] = {
  54                 .subtype = IFM_1000_KX,
  55                 .baudrate = IF_Mbps(1000ULL),
  56         },
  57         [MLX5E_10GBASE_CX4] = {
  58                 .subtype = IFM_10G_CX4,
  59                 .baudrate = IF_Gbps(10ULL),
  60         },
  61         [MLX5E_10GBASE_KX4] = {
  62                 .subtype = IFM_10G_KX4,
  63                 .baudrate = IF_Gbps(10ULL),
  64         },
  65         [MLX5E_10GBASE_KR] = {
  66                 .subtype = IFM_10G_KR,
  67                 .baudrate = IF_Gbps(10ULL),
  68         },
  69         [MLX5E_20GBASE_KR2] = {
  70                 .subtype = IFM_20G_KR2,
  71                 .baudrate = IF_Gbps(20ULL),
  72         },
  73         [MLX5E_40GBASE_CR4] = {
  74                 .subtype = IFM_40G_CR4,
  75                 .baudrate = IF_Gbps(40ULL),
  76         },
  77         [MLX5E_40GBASE_KR4] = {
  78                 .subtype = IFM_40G_KR4,
  79                 .baudrate = IF_Gbps(40ULL),
  80         },
  81         [MLX5E_56GBASE_R4] = {
  82                 .subtype = IFM_56G_R4,
  83                 .baudrate = IF_Gbps(56ULL),
  84         },
  85         [MLX5E_10GBASE_CR] = {
  86                 .subtype = IFM_10G_CR1,
  87                 .baudrate = IF_Gbps(10ULL),
  88         },
  89         [MLX5E_10GBASE_SR] = {
  90                 .subtype = IFM_10G_SR,
  91                 .baudrate = IF_Gbps(10ULL),
  92         },
  93         [MLX5E_10GBASE_LR] = {
  94                 .subtype = IFM_10G_LR,
  95                 .baudrate = IF_Gbps(10ULL),
  96         },
  97         [MLX5E_40GBASE_SR4] = {
  98                 .subtype = IFM_40G_SR4,
  99                 .baudrate = IF_Gbps(40ULL),
 100         },
 101         [MLX5E_40GBASE_LR4] = {
 102                 .subtype = IFM_40G_LR4,
 103                 .baudrate = IF_Gbps(40ULL),
 104         },
 105         [MLX5E_100GBASE_CR4] = {
 106                 .subtype = IFM_100G_CR4,
 107                 .baudrate = IF_Gbps(100ULL),
 108         },
 109         [MLX5E_100GBASE_SR4] = {
 110                 .subtype = IFM_100G_SR4,
 111                 .baudrate = IF_Gbps(100ULL),
 112         },
 113         [MLX5E_100GBASE_KR4] = {
 114                 .subtype = IFM_100G_KR4,
 115                 .baudrate = IF_Gbps(100ULL),
 116         },
 117         [MLX5E_100GBASE_LR4] = {
 118                 .subtype = IFM_100G_LR4,
 119                 .baudrate = IF_Gbps(100ULL),
 120         },
 121         [MLX5E_100BASE_TX] = {
 122                 .subtype = IFM_100_TX,
 123                 .baudrate = IF_Mbps(100ULL),
 124         },
 125         [MLX5E_100BASE_T] = {
 126                 .subtype = IFM_100_T,
 127                 .baudrate = IF_Mbps(100ULL),
 128         },
 129         [MLX5E_10GBASE_T] = {
 130                 .subtype = IFM_10G_T,
 131                 .baudrate = IF_Gbps(10ULL),
 132         },
 133         [MLX5E_25GBASE_CR] = {
 134                 .subtype = IFM_25G_CR,
 135                 .baudrate = IF_Gbps(25ULL),
 136         },
 137         [MLX5E_25GBASE_KR] = {
 138                 .subtype = IFM_25G_KR,
 139                 .baudrate = IF_Gbps(25ULL),
 140         },
 141         [MLX5E_25GBASE_SR] = {
 142                 .subtype = IFM_25G_SR,
 143                 .baudrate = IF_Gbps(25ULL),
 144         },
 145         [MLX5E_50GBASE_CR2] = {
 146                 .subtype = IFM_50G_CR2,
 147                 .baudrate = IF_Gbps(50ULL),
 148         },
 149         [MLX5E_50GBASE_KR2] = {
 150                 .subtype = IFM_50G_KR2,
 151                 .baudrate = IF_Gbps(50ULL),
 152         },
 153 };
 154
 155 MALLOC_DEFINE(M_MLX5EN, "MLX5EN", "MLX5 Ethernet");
 156
 157 static void
 158 mlx5e_update_carrier(struct mlx5e_priv *priv)
 159 {
 160         struct mlx5_core_dev *mdev = priv->mdev;
 161         u32 out[MLX5_ST_SZ_DW(ptys_reg)];
 162         u32 eth_proto_oper;
 163         int error;
 164         u8 port_state;
 165         u8 i;
 166
 167         port_state = mlx5_query_vport_state(mdev,
 168             MLX5_QUERY_VPORT_STATE_IN_OP_MOD_VNIC_VPORT, 0);
 169
 170         if (port_state == VPORT_STATE_UP) {
 171                 priv->media_status_last |= IFM_ACTIVE;
 172         } else {
 173                 priv->media_status_last &= ~IFM_ACTIVE;
 174                 priv->media_active_last = IFM_ETHER;
 175                 if_link_state_change(priv->ifp, LINK_STATE_DOWN);
 176                 return;
 177         }
 178
 179         error = mlx5_query_port_ptys(mdev, out, sizeof(out), MLX5_PTYS_EN);
 180         if (error) {
 181                 priv->media_active_last = IFM_ETHER;
 182                 priv->ifp->if_baudrate = 1;
 183                 if_printf(priv->ifp, "%s: query port ptys failed: 0x%x\n",
 184                     __func__, error);
 185                 return;
 186         }
 187         eth_proto_oper = MLX5_GET(ptys_reg, out, eth_proto_oper);
 188
 189         for (i = 0; i != MLX5E_LINK_MODES_NUMBER; i++) {
 190                 if (mlx5e_mode_table[i].baudrate == 0)
 191                         continue;
 192                 if (MLX5E_PROT_MASK(i) & eth_proto_oper) {
 193                         priv->ifp->if_baudrate =
 194                             mlx5e_mode_table[i].baudrate;
 195                         priv->media_active_last =
 196                             mlx5e_mode_table[i].subtype | IFM_ETHER | IFM_FDX;
 197                 }
 198         }
 199         if_link_state_change(priv->ifp, LINK_STATE_UP);
 200 }
 201
 202 static void
 203 mlx5e_media_status(struct ifnet *dev, struct ifmediareq *ifmr)
 204 {
 205         struct mlx5e_priv *priv = dev->if_softc;
 206
 207         ifmr->ifm_status = priv->media_status_last;
 208         ifmr->ifm_active = priv->media_active_last |
 209             (priv->params.rx_pauseframe_control ? IFM_ETH_RXPAUSE : 0) |
 210             (priv->params.tx_pauseframe_control ? IFM_ETH_TXPAUSE : 0);
 211
 212 }
 213
 214 static u32
 215 mlx5e_find_link_mode(u32 subtype)
 216 {
 217         u32 i;
 218         u32 link_mode = 0;
 219
 220         for (i = 0; i < MLX5E_LINK_MODES_NUMBER; ++i) {
 221                 if (mlx5e_mode_table[i].baudrate == 0)
 222                         continue;
 223                 if (mlx5e_mode_table[i].subtype == subtype)
 224                         link_mode |= MLX5E_PROT_MASK(i);
 225         }
 226
 227         return (link_mode);
 228 }
 229
 230 static int
 231 mlx5e_media_change(struct ifnet *dev)
 232 {
 233         struct mlx5e_priv *priv = dev->if_softc;
 234         struct mlx5_core_dev *mdev = priv->mdev;
 235         u32 eth_proto_cap;
 236         u32 link_mode;
 237         int was_opened;
 238         int locked;
 239         int error;
 240
 241         locked = PRIV_LOCKED(priv);
 242         if (!locked)
 243                 PRIV_LOCK(priv);
 244
 245         if (IFM_TYPE(priv->media.ifm_media) != IFM_ETHER) {
 246                 error = EINVAL;
 247                 goto done;
 248         }
 249         link_mode = mlx5e_find_link_mode(IFM_SUBTYPE(priv->media.ifm_media));
 250
 251         /* query supported capabilities */
 252         error = mlx5_query_port_proto_cap(mdev, &eth_proto_cap, MLX5_PTYS_EN);
 253         if (error != 0) {
 254                 if_printf(dev, "Query port media capability failed\n");
 255                 goto done;
 256         }
 257         /* check for autoselect */
 258         if (IFM_SUBTYPE(priv->media.ifm_media) == IFM_AUTO) {
 259                 link_mode = eth_proto_cap;
 260                 if (link_mode == 0) {
 261                         if_printf(dev, "Port media capability is zero\n");
 262                         error = EINVAL;
 263                         goto done;
 264                 }
 265         } else {
 266                 link_mode = link_mode & eth_proto_cap;
 267                 if (link_mode == 0) {
 268                         if_printf(dev, "Not supported link mode requested\n");
 269                         error = EINVAL;
 270                         goto done;
 271                 }
 272         }
 273         /* update pauseframe control bits */
 274         priv->params.rx_pauseframe_control =
 275             (priv->media.ifm_media & IFM_ETH_RXPAUSE) ? 1 : 0;
 276         priv->params.tx_pauseframe_control =
 277             (priv->media.ifm_media & IFM_ETH_TXPAUSE) ? 1 : 0;
 278
 279         /* check if device is opened */
 280         was_opened = test_bit(MLX5E_STATE_OPENED, &priv->state);
 281
 282         /* reconfigure the hardware */
 283         mlx5_set_port_status(mdev, MLX5_PORT_DOWN);
 284         mlx5_set_port_proto(mdev, link_mode, MLX5_PTYS_EN);
 285         mlx5_set_port_pause(mdev, 1,
 286             priv->params.rx_pauseframe_control,
 287             priv->params.tx_pauseframe_control);
 288         if (was_opened)
 289                 mlx5_set_port_status(mdev, MLX5_PORT_UP);
 290
 291 done:
 292         if (!locked)
 293                 PRIV_UNLOCK(priv);
 294         return (error);
 295 }
 296
 297 static void
 298 mlx5e_update_carrier_work(struct work_struct *work)
 299 {
 300         struct mlx5e_priv *priv = container_of(work, struct mlx5e_priv,
 301             update_carrier_work);
 302
 303         PRIV_LOCK(priv);
 304         if (test_bit(MLX5E_STATE_OPENED, &priv->state))
 305                 mlx5e_update_carrier(priv);
 306         PRIV_UNLOCK(priv);
 307 }
 308
 309 /*
 310  * This function reads the physical port counters from the firmware
 311  * using a pre-defined layout defined by various MLX5E_PPORT_XXX()
 312  * macros. The output is converted from big-endian 64-bit values into
 313  * host endian ones and stored in the "priv->stats.pport" structure.
 314  */
 315 static void
 316 mlx5e_update_pport_counters(struct mlx5e_priv *priv)
 317 {
 318         struct mlx5_core_dev *mdev = priv->mdev;
 319         struct mlx5e_pport_stats *s = &priv->stats.pport;
 320         struct mlx5e_port_stats_debug *s_debug = &priv->stats.port_stats_debug;
 321         u32 *in;
 322         u32 *out;
 323         const u64 *ptr;
 324         unsigned sz = MLX5_ST_SZ_BYTES(ppcnt_reg);
 325         unsigned x;
 326         unsigned y;
 327
 328         /* allocate firmware request structures */
 329         in = mlx5_vzalloc(sz);
 330         out = mlx5_vzalloc(sz);
 331         if (in == NULL || out == NULL)
 332                 goto free_out;
 333
 334         /*
 335          * Get pointer to the 64-bit counter set which is located at a
 336          * fixed offset in the output firmware request structure:
 337          */
 338         ptr = (const uint64_t *)MLX5_ADDR_OF(ppcnt_reg, out, counter_set);
 339
 340         MLX5_SET(ppcnt_reg, in, local_port, 1);
 341
 342         /* read IEEE802_3 counter group using predefined counter layout */
 343         MLX5_SET(ppcnt_reg, in, grp, MLX5_IEEE_802_3_COUNTERS_GROUP);
 344         mlx5_core_access_reg(mdev, in, sz, out, sz, MLX5_REG_PPCNT, 0, 0);
 345         for (x = y = 0; x != MLX5E_PPORT_IEEE802_3_STATS_NUM; x++, y++)
 346                 s->arg[y] = be64toh(ptr[x]);
 347
 348         /* read RFC2819 counter group using predefined counter layout */
 349         MLX5_SET(ppcnt_reg, in, grp, MLX5_RFC_2819_COUNTERS_GROUP);
 350         mlx5_core_access_reg(mdev, in, sz, out, sz, MLX5_REG_PPCNT, 0, 0);
 351         for (x = 0; x != MLX5E_PPORT_RFC2819_STATS_NUM; x++, y++)
 352                 s->arg[y] = be64toh(ptr[x]);
 353         for (y = 0; x != MLX5E_PPORT_RFC2819_STATS_NUM +
 354             MLX5E_PPORT_RFC2819_STATS_DEBUG_NUM; x++, y++)
 355                 s_debug->arg[y] = be64toh(ptr[x]);
 356
 357         /* read RFC2863 counter group using predefined counter layout */
 358         MLX5_SET(ppcnt_reg, in, grp, MLX5_RFC_2863_COUNTERS_GROUP);
 359         mlx5_core_access_reg(mdev, in, sz, out, sz, MLX5_REG_PPCNT, 0, 0);
 360         for (x = 0; x != MLX5E_PPORT_RFC2863_STATS_DEBUG_NUM; x++, y++)
 361                 s_debug->arg[y] = be64toh(ptr[x]);
 362
 363         /* read physical layer stats counter group using predefined counter layout */
 364         MLX5_SET(ppcnt_reg, in, grp, MLX5_PHYSICAL_LAYER_COUNTERS_GROUP);
 365         mlx5_core_access_reg(mdev, in, sz, out, sz, MLX5_REG_PPCNT, 0, 0);
 366         for (x = 0; x != MLX5E_PPORT_PHYSICAL_LAYER_STATS_DEBUG_NUM; x++, y++)
 367                 s_debug->arg[y] = be64toh(ptr[x]);
 368 free_out:
 369         /* free firmware request structures */
 370         kvfree(in);
 371         kvfree(out);
 372 }
 373
 374 /*
 375  * This function is called regularly to collect all statistics
 376  * counters from the firmware. The values can be viewed through the
 377  * sysctl interface. Execution is serialized using the priv's global
 378  * configuration lock.
 379  */
 380 static void
 381 mlx5e_update_stats_work(struct work_struct *work)
 382 {
 383         struct mlx5e_priv *priv = container_of(work, struct mlx5e_priv,
 384             update_stats_work);
 385         struct mlx5_core_dev *mdev = priv->mdev;
 386         struct mlx5e_vport_stats *s = &priv->stats.vport;
 387         struct mlx5e_rq_stats *rq_stats;
 388         struct mlx5e_sq_stats *sq_stats;
 389         struct buf_ring *sq_br;
 390 #if (__FreeBSD_version < 1100000)
 391         struct ifnet *ifp = priv->ifp;
 392 #endif
 393
 394         u32 in[MLX5_ST_SZ_DW(query_vport_counter_in)];
 395         u32 *out;
 396         int outlen = MLX5_ST_SZ_BYTES(query_vport_counter_out);
 397         u64 tso_packets = 0;
 398         u64 tso_bytes = 0;
 399         u64 tx_queue_dropped = 0;
 400         u64 tx_defragged = 0;
 401         u64 tx_offload_none = 0;
 402         u64 lro_packets = 0;
 403         u64 lro_bytes = 0;
 404         u64 sw_lro_queued = 0;
 405         u64 sw_lro_flushed = 0;
 406         u64 rx_csum_none = 0;
 407         u64 rx_wqe_err = 0;
 408         u32 rx_out_of_buffer = 0;
 409         int i;
 410         int j;
 411
 412         PRIV_LOCK(priv);
 413         out = mlx5_vzalloc(outlen);
 414         if (out == NULL)
 415                 goto free_out;
 416         if (test_bit(MLX5E_STATE_OPENED, &priv->state) == 0)
 417                 goto free_out;
 418
 419         /* Collect firts the SW counters and then HW for consistency */
 420         for (i = 0; i < priv->params.num_channels; i++) {
 421                 struct mlx5e_rq *rq = &priv->channel[i]->rq;
 422
 423                 rq_stats = &priv->channel[i]->rq.stats;
 424
 425                 /* collect stats from LRO */
 426                 rq_stats->sw_lro_queued = rq->lro.lro_queued;
 427                 rq_stats->sw_lro_flushed = rq->lro.lro_flushed;
 428                 sw_lro_queued += rq_stats->sw_lro_queued;
 429                 sw_lro_flushed += rq_stats->sw_lro_flushed;
 430                 lro_packets += rq_stats->lro_packets;
 431                 lro_bytes += rq_stats->lro_bytes;
 432                 rx_csum_none += rq_stats->csum_none;
 433                 rx_wqe_err += rq_stats->wqe_err;
 434
 435                 for (j = 0; j < priv->num_tc; j++) {
 436                         sq_stats = &priv->channel[i]->sq[j].stats;
 437                         sq_br = priv->channel[i]->sq[j].br;
 438
 439                         tso_packets += sq_stats->tso_packets;
 440                         tso_bytes += sq_stats->tso_bytes;
 441                         tx_queue_dropped += sq_stats->dropped;
 442                         if (sq_br != NULL)
 443                                 tx_queue_dropped += sq_br->br_drops;
 444                         tx_defragged += sq_stats->defragged;
 445                         tx_offload_none += sq_stats->csum_offload_none;
 446                 }
 447         }
 448
 449         /* update counters */
 450         s->tso_packets = tso_packets;
 451         s->tso_bytes = tso_bytes;
 452         s->tx_queue_dropped = tx_queue_dropped;
 453         s->tx_defragged = tx_defragged;
 454         s->lro_packets = lro_packets;
 455         s->lro_bytes = lro_bytes;
 456         s->sw_lro_queued = sw_lro_queued;
 457         s->sw_lro_flushed = sw_lro_flushed;
 458         s->rx_csum_none = rx_csum_none;
 459         s->rx_wqe_err = rx_wqe_err;
 460
 461         /* HW counters */
 462         memset(in, 0, sizeof(in));
 463
 464         MLX5_SET(query_vport_counter_in, in, opcode,
 465             MLX5_CMD_OP_QUERY_VPORT_COUNTER);
 466         MLX5_SET(query_vport_counter_in, in, op_mod, 0);
 467         MLX5_SET(query_vport_counter_in, in, other_vport, 0);
 468
 469         memset(out, 0, outlen);
 470
 471         /* get number of out-of-buffer drops first */
 472         if (mlx5_vport_query_out_of_rx_buffer(mdev, priv->counter_set_id,
 473             &rx_out_of_buffer))
 474                 goto free_out;
 475
 476         /* accumulate difference into a 64-bit counter */
 477         s->rx_out_of_buffer += (u64)(u32)(rx_out_of_buffer - s->rx_out_of_buffer_prev);
 478         s->rx_out_of_buffer_prev = rx_out_of_buffer;
 479
 480         /* get port statistics */
 481         if (mlx5_cmd_exec(mdev, in, sizeof(in), out, outlen))
 482                 goto free_out;
 483
 484 #define MLX5_GET_CTR(out, x) \
 485         MLX5_GET64(query_vport_counter_out, out, x)
 486
 487         s->rx_error_packets =
 488             MLX5_GET_CTR(out, received_errors.packets);
 489         s->rx_error_bytes =
 490             MLX5_GET_CTR(out, received_errors.octets);
 491         s->tx_error_packets =
 492             MLX5_GET_CTR(out, transmit_errors.packets);
 493         s->tx_error_bytes =
 494             MLX5_GET_CTR(out, transmit_errors.octets);
 495
 496         s->rx_unicast_packets =
 497             MLX5_GET_CTR(out, received_eth_unicast.packets);
 498         s->rx_unicast_bytes =
 499             MLX5_GET_CTR(out, received_eth_unicast.octets);
 500         s->tx_unicast_packets =
 501             MLX5_GET_CTR(out, transmitted_eth_unicast.packets);
 502         s->tx_unicast_bytes =
 503             MLX5_GET_CTR(out, transmitted_eth_unicast.octets);
 504
 505         s->rx_multicast_packets =
 506             MLX5_GET_CTR(out, received_eth_multicast.packets);
 507         s->rx_multicast_bytes =
 508             MLX5_GET_CTR(out, received_eth_multicast.octets);
 509         s->tx_multicast_packets =
 510             MLX5_GET_CTR(out, transmitted_eth_multicast.packets);
 511         s->tx_multicast_bytes =
 512             MLX5_GET_CTR(out, transmitted_eth_multicast.octets);
 513
 514         s->rx_broadcast_packets =
 515             MLX5_GET_CTR(out, received_eth_broadcast.packets);
 516         s->rx_broadcast_bytes =
 517             MLX5_GET_CTR(out, received_eth_broadcast.octets);
 518         s->tx_broadcast_packets =
 519             MLX5_GET_CTR(out, transmitted_eth_broadcast.packets);
 520         s->tx_broadcast_bytes =
 521             MLX5_GET_CTR(out, transmitted_eth_broadcast.octets);
 522
 523         s->rx_packets =
 524             s->rx_unicast_packets +
 525             s->rx_multicast_packets +
 526             s->rx_broadcast_packets -
 527             s->rx_out_of_buffer;
 528         s->rx_bytes =
 529             s->rx_unicast_bytes +
 530             s->rx_multicast_bytes +
 531             s->rx_broadcast_bytes;
 532         s->tx_packets =
 533             s->tx_unicast_packets +
 534             s->tx_multicast_packets +
 535             s->tx_broadcast_packets;
 536         s->tx_bytes =
 537             s->tx_unicast_bytes +
 538             s->tx_multicast_bytes +
 539             s->tx_broadcast_bytes;
 540
 541         /* Update calculated offload counters */
 542         s->tx_csum_offload = s->tx_packets - tx_offload_none;
 543         s->rx_csum_good = s->rx_packets - s->rx_csum_none;
 544
 545         /* Get physical port counters */
 546         mlx5e_update_pport_counters(priv);
 547
 548 #if (__FreeBSD_version < 1100000)
 549         /* no get_counters interface in fbsd 10 */
 550         ifp->if_ipackets = s->rx_packets;
 551         ifp->if_ierrors = s->rx_error_packets +
 552             priv->stats.pport.alignment_err +
 553             priv->stats.pport.check_seq_err +
 554             priv->stats.pport.crc_align_errors +
 555             priv->stats.pport.in_range_len_errors +
 556             priv->stats.pport.jabbers +
 557             priv->stats.pport.out_of_range_len +
 558             priv->stats.pport.oversize_pkts +
 559             priv->stats.pport.symbol_err +
 560             priv->stats.pport.too_long_errors +
 561             priv->stats.pport.undersize_pkts +
 562             priv->stats.pport.unsupported_op_rx;
 563         ifp->if_iqdrops = s->rx_out_of_buffer +
 564             priv->stats.pport.drop_events;
 565         ifp->if_opackets = s->tx_packets;
 566         ifp->if_oerrors = s->tx_error_packets;
 567         ifp->if_snd.ifq_drops = s->tx_queue_dropped;
 568         ifp->if_ibytes = s->rx_bytes;
 569         ifp->if_obytes = s->tx_bytes;
 570         ifp->if_collisions =
 571             priv->stats.pport.collisions;
 572 #endif
 573
 574 free_out:
 575         kvfree(out);
 576
 577         /* Update diagnostics, if any */
 578         if (priv->params_ethtool.diag_pci_enable ||
 579             priv->params_ethtool.diag_general_enable) {
 580                 int error = mlx5_core_get_diagnostics_full(mdev,
 581                     priv->params_ethtool.diag_pci_enable ? &priv->params_pci : NULL,
 582                     priv->params_ethtool.diag_general_enable ? &priv->params_general : NULL);
 583                 if (error != 0)
 584                         if_printf(priv->ifp, "Failed reading diagnostics: %d\n", error);
 585         }
 586         PRIV_UNLOCK(priv);
 587 }
 588
 589 static void
 590 mlx5e_update_stats(void *arg)
 591 {
 592         struct mlx5e_priv *priv = arg;
 593
 594         schedule_work(&priv->update_stats_work);
 595
 596         callout_reset(&priv->watchdog, hz, &mlx5e_update_stats, priv);
 597 }
 598
 599 static void
 600 mlx5e_async_event_sub(struct mlx5e_priv *priv,
 601     enum mlx5_dev_event event)
 602 {
 603         switch (event) {
 604         case MLX5_DEV_EVENT_PORT_UP:
 605         case MLX5_DEV_EVENT_PORT_DOWN:
 606                 schedule_work(&priv->update_carrier_work);
 607                 break;
 608
 609         default:
 610                 break;
 611         }
 612 }
 613
 614 static void
 615 mlx5e_async_event(struct mlx5_core_dev *mdev, void *vpriv,
 616     enum mlx5_dev_event event, unsigned long param)
 617 {
 618         struct mlx5e_priv *priv = vpriv;
 619
 620         mtx_lock(&priv->async_events_mtx);
 621         if (test_bit(MLX5E_STATE_ASYNC_EVENTS_ENABLE, &priv->state))
 622                 mlx5e_async_event_sub(priv, event);
 623         mtx_unlock(&priv->async_events_mtx);
 624 }
 625
 626 static void
 627 mlx5e_enable_async_events(struct mlx5e_priv *priv)
 628 {
 629         set_bit(MLX5E_STATE_ASYNC_EVENTS_ENABLE, &priv->state);
 630 }
 631
 632 static void
 633 mlx5e_disable_async_events(struct mlx5e_priv *priv)
 634 {
 635         mtx_lock(&priv->async_events_mtx);
 636         clear_bit(MLX5E_STATE_ASYNC_EVENTS_ENABLE, &priv->state);
 637         mtx_unlock(&priv->async_events_mtx);
 638 }
 639
 640 static const char *mlx5e_rq_stats_desc[] = {
 641         MLX5E_RQ_STATS(MLX5E_STATS_DESC)
 642 };
 643
 644 static int
 645 mlx5e_create_rq(struct mlx5e_channel *c,
 646     struct mlx5e_rq_param *param,
 647     struct mlx5e_rq *rq)
 648 {
 649         struct mlx5e_priv *priv = c->priv;
 650         struct mlx5_core_dev *mdev = priv->mdev;
 651         char buffer[16];
 652         void *rqc = param->rqc;
 653         void *rqc_wq = MLX5_ADDR_OF(rqc, rqc, wq);
 654         int wq_sz;
 655         int err;
 656         int i;
 657
 658         /* Create DMA descriptor TAG */
 659         if ((err = -bus_dma_tag_create(
 660             bus_get_dma_tag(mdev->pdev->dev.bsddev),
 661             1,                          /* any alignment */
 662             0,                          /* no boundary */
 663             BUS_SPACE_MAXADDR,          /* lowaddr */
 664             BUS_SPACE_MAXADDR,          /* highaddr */
 665             NULL, NULL,                 /* filter, filterarg */
 666             MJUM16BYTES,                /* maxsize */
 667             1,                          /* nsegments */
 668             MJUM16BYTES,                /* maxsegsize */
 669             0,                          /* flags */
 670             NULL, NULL,                 /* lockfunc, lockfuncarg */
 671             &rq->dma_tag)))
 672                 goto done;
 673
 674         err = mlx5_wq_ll_create(mdev, &param->wq, rqc_wq, &rq->wq,
 675             &rq->wq_ctrl);
 676         if (err)
 677                 goto err_free_dma_tag;
 678
 679         rq->wq.db = &rq->wq.db[MLX5_RCV_DBR];
 680
 681         if (priv->params.hw_lro_en) {
 682                 rq->wqe_sz = priv->params.lro_wqe_sz;
 683         } else {
 684                 rq->wqe_sz = MLX5E_SW2MB_MTU(priv->ifp->if_mtu);
 685         }
 686         if (rq->wqe_sz > MJUM16BYTES) {
 687                 err = -ENOMEM;
 688                 goto err_rq_wq_destroy;
 689         } else if (rq->wqe_sz > MJUM9BYTES) {
 690                 rq->wqe_sz = MJUM16BYTES;
 691         } else if (rq->wqe_sz > MJUMPAGESIZE) {
 692                 rq->wqe_sz = MJUM9BYTES;
 693         } else if (rq->wqe_sz > MCLBYTES) {
 694                 rq->wqe_sz = MJUMPAGESIZE;
 695         } else {
 696                 rq->wqe_sz = MCLBYTES;
 697         }
 698
 699         wq_sz = mlx5_wq_ll_get_size(&rq->wq);
 700
 701         err = -tcp_lro_init_args(&rq->lro, c->ifp, TCP_LRO_ENTRIES, wq_sz);
 702         if (err)
 703                 goto err_rq_wq_destroy;
 704
 705         rq->mbuf = malloc(wq_sz * sizeof(rq->mbuf[0]), M_MLX5EN, M_WAITOK | M_ZERO);
 706         for (i = 0; i != wq_sz; i++) {
 707                 struct mlx5e_rx_wqe *wqe = mlx5_wq_ll_get_wqe(&rq->wq, i);
 708                 uint32_t byte_count = rq->wqe_sz - MLX5E_NET_IP_ALIGN;
 709
 710                 err = -bus_dmamap_create(rq->dma_tag, 0, &rq->mbuf[i].dma_map);
 711                 if (err != 0) {
 712                         while (i--)
 713                                 bus_dmamap_destroy(rq->dma_tag, rq->mbuf[i].dma_map);
 714                         goto err_rq_mbuf_free;
 715                 }
 716                 wqe->data.lkey = c->mkey_be;
 717                 wqe->data.byte_count = cpu_to_be32(byte_count | MLX5_HW_START_PADDING);
 718         }
 719
 720         rq->ifp = c->ifp;
 721         rq->channel = c;
 722         rq->ix = c->ix;
 723
 724         snprintf(buffer, sizeof(buffer), "rxstat%d", c->ix);
 725         mlx5e_create_stats(&rq->stats.ctx, SYSCTL_CHILDREN(priv->sysctl_ifnet),
 726             buffer, mlx5e_rq_stats_desc, MLX5E_RQ_STATS_NUM,
 727             rq->stats.arg);
 728         return (0);
 729
 730 err_rq_mbuf_free:
 731         free(rq->mbuf, M_MLX5EN);
 732         tcp_lro_free(&rq->lro);
 733 err_rq_wq_destroy:
 734         mlx5_wq_destroy(&rq->wq_ctrl);
 735 err_free_dma_tag:
 736         bus_dma_tag_destroy(rq->dma_tag);
 737 done:
 738         return (err);
 739 }
 740
 741 static void
 742 mlx5e_destroy_rq(struct mlx5e_rq *rq)
 743 {
 744         int wq_sz;
 745         int i;
 746
 747         /* destroy all sysctl nodes */
 748         sysctl_ctx_free(&rq->stats.ctx);
 749
 750         /* free leftover LRO packets, if any */
 751         tcp_lro_free(&rq->lro);
 752
 753         wq_sz = mlx5_wq_ll_get_size(&rq->wq);
 754         for (i = 0; i != wq_sz; i++) {
 755                 if (rq->mbuf[i].mbuf != NULL) {
 756                         bus_dmamap_unload(rq->dma_tag,
 757                             rq->mbuf[i].dma_map);
 758                         m_freem(rq->mbuf[i].mbuf);
 759                 }
 760                 bus_dmamap_destroy(rq->dma_tag, rq->mbuf[i].dma_map);
 761         }
 762         free(rq->mbuf, M_MLX5EN);
 763         mlx5_wq_destroy(&rq->wq_ctrl);
 764 }
 765
 766 static int
 767 mlx5e_enable_rq(struct mlx5e_rq *rq, struct mlx5e_rq_param *param)
 768 {
 769         struct mlx5e_channel *c = rq->channel;
 770         struct mlx5e_priv *priv = c->priv;
 771         struct mlx5_core_dev *mdev = priv->mdev;
 772
 773         void *in;
 774         void *rqc;
 775         void *wq;
 776         int inlen;
 777         int err;
 778
 779         inlen = MLX5_ST_SZ_BYTES(create_rq_in) +
 780             sizeof(u64) * rq->wq_ctrl.buf.npages;
 781         in = mlx5_vzalloc(inlen);
 782         if (in == NULL)
 783                 return (-ENOMEM);
 784
 785         rqc = MLX5_ADDR_OF(create_rq_in, in, ctx);
 786         wq = MLX5_ADDR_OF(rqc, rqc, wq);
 787
 788         memcpy(rqc, param->rqc, sizeof(param->rqc));
 789
 790         MLX5_SET(rqc, rqc, cqn, c->rq.cq.mcq.cqn);
 791         MLX5_SET(rqc, rqc, state, MLX5_RQC_STATE_RST);
 792         MLX5_SET(rqc, rqc, flush_in_error_en, 1);
 793         if (priv->counter_set_id >= 0)
 794                 MLX5_SET(rqc, rqc, counter_set_id, priv->counter_set_id);
 795         MLX5_SET(wq, wq, log_wq_pg_sz, rq->wq_ctrl.buf.page_shift -
 796             PAGE_SHIFT);
 797         MLX5_SET64(wq, wq, dbr_addr, rq->wq_ctrl.db.dma);
 798
 799         mlx5_fill_page_array(&rq->wq_ctrl.buf,
 800             (__be64 *) MLX5_ADDR_OF(wq, wq, pas));
 801
 802         err = mlx5_core_create_rq(mdev, in, inlen, &rq->rqn);
 803
 804         kvfree(in);
 805
 806         return (err);
 807 }
 808
 809 static int
 810 mlx5e_modify_rq(struct mlx5e_rq *rq, int curr_state, int next_state)
 811 {
 812         struct mlx5e_channel *c = rq->channel;
 813         struct mlx5e_priv *priv = c->priv;
 814         struct mlx5_core_dev *mdev = priv->mdev;
 815
 816         void *in;
 817         void *rqc;
 818         int inlen;
 819         int err;
 820
 821         inlen = MLX5_ST_SZ_BYTES(modify_rq_in);
 822         in = mlx5_vzalloc(inlen);
 823         if (in == NULL)
 824                 return (-ENOMEM);
 825
 826         rqc = MLX5_ADDR_OF(modify_rq_in, in, ctx);
 827
 828         MLX5_SET(modify_rq_in, in, rqn, rq->rqn);
 829         MLX5_SET(modify_rq_in, in, rq_state, curr_state);
 830         MLX5_SET(rqc, rqc, state, next_state);
 831
 832         err = mlx5_core_modify_rq(mdev, in, inlen);
 833
 834         kvfree(in);
 835
 836         return (err);
 837 }
 838
 839 static void
 840 mlx5e_disable_rq(struct mlx5e_rq *rq)
 841 {
 842         struct mlx5e_channel *c = rq->channel;
 843         struct mlx5e_priv *priv = c->priv;
 844         struct mlx5_core_dev *mdev = priv->mdev;
 845
 846         mlx5_core_destroy_rq(mdev, rq->rqn);
 847 }
 848
 849 static int
 850 mlx5e_wait_for_min_rx_wqes(struct mlx5e_rq *rq)
 851 {
 852         struct mlx5e_channel *c = rq->channel;
 853         struct mlx5e_priv *priv = c->priv;
 854         struct mlx5_wq_ll *wq = &rq->wq;
 855         int i;
 856
 857         for (i = 0; i < 1000; i++) {
 858                 if (wq->cur_sz >= priv->params.min_rx_wqes)
 859                         return (0);
 860
 861                 msleep(4);
 862         }
 863         return (-ETIMEDOUT);
 864 }
 865
 866 static int
 867 mlx5e_open_rq(struct mlx5e_channel *c,
 868     struct mlx5e_rq_param *param,
 869     struct mlx5e_rq *rq)
 870 {
 871         int err;
 872
 873         err = mlx5e_create_rq(c, param, rq);
 874         if (err)
 875                 return (err);
 876
 877         err = mlx5e_enable_rq(rq, param);
 878         if (err)
 879                 goto err_destroy_rq;
 880
 881         err = mlx5e_modify_rq(rq, MLX5_RQC_STATE_RST, MLX5_RQC_STATE_RDY);
 882         if (err)
 883                 goto err_disable_rq;
 884
 885         c->rq.enabled = 1;
 886
 887         return (0);
 888
 889 err_disable_rq:
 890         mlx5e_disable_rq(rq);
 891 err_destroy_rq:
 892         mlx5e_destroy_rq(rq);
 893
 894         return (err);
 895 }
 896
 897 static void
 898 mlx5e_close_rq(struct mlx5e_rq *rq)
 899 {
 900         mtx_lock(&rq->mtx);
 901         rq->enabled = 0;
 902         callout_stop(&rq->watchdog);
 903         mtx_unlock(&rq->mtx);
 904
 905         callout_drain(&rq->watchdog);
 906
 907         mlx5e_modify_rq(rq, MLX5_RQC_STATE_RDY, MLX5_RQC_STATE_ERR);
 908 }
 909
 910 static void
 911 mlx5e_close_rq_wait(struct mlx5e_rq *rq)
 912 {
 913         /* wait till RQ is empty */
 914         while (!mlx5_wq_ll_is_empty(&rq->wq)) {
 915                 msleep(4);
 916                 rq->cq.mcq.comp(&rq->cq.mcq);
 917         }
 918
 919         mlx5e_disable_rq(rq);
 920         mlx5e_destroy_rq(rq);
 921 }
 922
 923 void
 924 mlx5e_free_sq_db(struct mlx5e_sq *sq)
 925 {
 926         int wq_sz = mlx5_wq_cyc_get_size(&sq->wq);
 927         int x;
 928
 929         for (x = 0; x != wq_sz; x++)
 930                 bus_dmamap_destroy(sq->dma_tag, sq->mbuf[x].dma_map);
 931         free(sq->mbuf, M_MLX5EN);
 932 }
 933
 934 int
 935 mlx5e_alloc_sq_db(struct mlx5e_sq *sq)
 936 {
 937         int wq_sz = mlx5_wq_cyc_get_size(&sq->wq);
 938         int err;
 939         int x;
 940
 941         sq->mbuf = malloc(wq_sz * sizeof(sq->mbuf[0]), M_MLX5EN, M_WAITOK | M_ZERO);
 942
 943         /* Create DMA descriptor MAPs */
 944         for (x = 0; x != wq_sz; x++) {
 945                 err = -bus_dmamap_create(sq->dma_tag, 0, &sq->mbuf[x].dma_map);
 946                 if (err != 0) {
 947                         while (x--)
 948                                 bus_dmamap_destroy(sq->dma_tag, sq->mbuf[x].dma_map);
 949                         free(sq->mbuf, M_MLX5EN);
 950                         return (err);
 951                 }
 952         }
 953         return (0);
 954 }
 955
 956 static const char *mlx5e_sq_stats_desc[] = {
 957         MLX5E_SQ_STATS(MLX5E_STATS_DESC)
 958 };
 959
 960 static int
 961 mlx5e_create_sq(struct mlx5e_channel *c,
 962     int tc,
 963     struct mlx5e_sq_param *param,
 964     struct mlx5e_sq *sq)
 965 {
 966         struct mlx5e_priv *priv = c->priv;
 967         struct mlx5_core_dev *mdev = priv->mdev;
 968         char buffer[16];
 969
 970         void *sqc = param->sqc;
 971         void *sqc_wq = MLX5_ADDR_OF(sqc, sqc, wq);
 972 #ifdef RSS
 973         cpuset_t cpu_mask;
 974         int cpu_id;
 975 #endif
 976         int err;
 977
 978         /* Create DMA descriptor TAG */
 979         if ((err = -bus_dma_tag_create(
 980             bus_get_dma_tag(mdev->pdev->dev.bsddev),
 981             1,                          /* any alignment */
 982             0,                          /* no boundary */
 983             BUS_SPACE_MAXADDR,          /* lowaddr */
 984             BUS_SPACE_MAXADDR,          /* highaddr */
 985             NULL, NULL,                 /* filter, filterarg */
 986             MLX5E_MAX_TX_PAYLOAD_SIZE,  /* maxsize */
 987             MLX5E_MAX_TX_MBUF_FRAGS,    /* nsegments */
 988             MLX5E_MAX_TX_MBUF_SIZE,     /* maxsegsize */
 989             0,                          /* flags */
 990             NULL, NULL,                 /* lockfunc, lockfuncarg */
 991             &sq->dma_tag)))
 992                 goto done;
 993
 994         err = mlx5_alloc_map_uar(mdev, &sq->uar);
 995         if (err)
 996                 goto err_free_dma_tag;
 997
 998         err = mlx5_wq_cyc_create(mdev, &param->wq, sqc_wq, &sq->wq,
 999             &sq->wq_ctrl);
1000         if (err)
1001                 goto err_unmap_free_uar;
1002
1003         sq->wq.db = &sq->wq.db[MLX5_SND_DBR];
1004         sq->bf_buf_size = (1 << MLX5_CAP_GEN(mdev, log_bf_reg_size)) / 2;
1005
1006         err = mlx5e_alloc_sq_db(sq);
1007         if (err)
1008                 goto err_sq_wq_destroy;
1009
1010         sq->mkey_be = c->mkey_be;
1011         sq->ifp = priv->ifp;
1012         sq->priv = priv;
1013         sq->tc = tc;
1014
1015         /* check if we should allocate a second packet buffer */
1016         if (priv->params_ethtool.tx_bufring_disable == 0) {
1017                 sq->br = buf_ring_alloc(MLX5E_SQ_TX_QUEUE_SIZE, M_MLX5EN,
1018                     M_WAITOK, &sq->lock);
1019                 if (sq->br == NULL) {
1020                         if_printf(c->ifp, "%s: Failed allocating sq drbr buffer\n",
1021                             __func__);
1022                         err = -ENOMEM;
1023                         goto err_free_sq_db;
1024                 }
1025
1026                 sq->sq_tq = taskqueue_create_fast("mlx5e_que", M_WAITOK,
1027                     taskqueue_thread_enqueue, &sq->sq_tq);
1028                 if (sq->sq_tq == NULL) {
1029                         if_printf(c->ifp, "%s: Failed allocating taskqueue\n",
1030                             __func__);
1031                         err = -ENOMEM;
1032                         goto err_free_drbr;
1033                 }
1034
1035                 TASK_INIT(&sq->sq_task, 0, mlx5e_tx_que, sq);
1036 #ifdef RSS
1037                 cpu_id = rss_getcpu(c->ix % rss_getnumbuckets());
1038                 CPU_SETOF(cpu_id, &cpu_mask);
1039                 taskqueue_start_threads_cpuset(&sq->sq_tq, 1, PI_NET, &cpu_mask,
1040                     "%s TX SQ%d.%d CPU%d", c->ifp->if_xname, c->ix, tc, cpu_id);
1041 #else
1042                 taskqueue_start_threads(&sq->sq_tq, 1, PI_NET,
1043                     "%s TX SQ%d.%d", c->ifp->if_xname, c->ix, tc);
1044 #endif
1045         }
1046         snprintf(buffer, sizeof(buffer), "txstat%dtc%d", c->ix, tc);
1047         mlx5e_create_stats(&sq->stats.ctx, SYSCTL_CHILDREN(priv->sysctl_ifnet),
1048             buffer, mlx5e_sq_stats_desc, MLX5E_SQ_STATS_NUM,
1049             sq->stats.arg);
1050
1051         return (0);
1052
1053 err_free_drbr:
1054         buf_ring_free(sq->br, M_MLX5EN);
1055 err_free_sq_db:
1056         mlx5e_free_sq_db(sq);
1057 err_sq_wq_destroy:
1058         mlx5_wq_destroy(&sq->wq_ctrl);
1059
1060 err_unmap_free_uar:
1061         mlx5_unmap_free_uar(mdev, &sq->uar);
1062
1063 err_free_dma_tag:
1064         bus_dma_tag_destroy(sq->dma_tag);
1065 done:
1066         return (err);
1067 }
1068
1069 static void
1070 mlx5e_destroy_sq(struct mlx5e_sq *sq)
1071 {
1072         /* destroy all sysctl nodes */
1073         sysctl_ctx_free(&sq->stats.ctx);
1074
1075         mlx5e_free_sq_db(sq);
1076         mlx5_wq_destroy(&sq->wq_ctrl);
1077         mlx5_unmap_free_uar(sq->priv->mdev, &sq->uar);
1078         if (sq->sq_tq != NULL) {
1079                 taskqueue_drain(sq->sq_tq, &sq->sq_task);
1080                 taskqueue_free(sq->sq_tq);
1081         }
1082         if (sq->br != NULL)
1083                 buf_ring_free(sq->br, M_MLX5EN);
1084 }
1085
1086 int
1087 mlx5e_enable_sq(struct mlx5e_sq *sq, struct mlx5e_sq_param *param,
1088     int tis_num)
1089 {
1090         void *in;
1091         void *sqc;
1092         void *wq;
1093         int inlen;
1094         int err;
1095
1096         inlen = MLX5_ST_SZ_BYTES(create_sq_in) +
1097             sizeof(u64) * sq->wq_ctrl.buf.npages;
1098         in = mlx5_vzalloc(inlen);
1099         if (in == NULL)
1100                 return (-ENOMEM);
1101
1102         sqc = MLX5_ADDR_OF(create_sq_in, in, ctx);
1103         wq = MLX5_ADDR_OF(sqc, sqc, wq);
1104
1105         memcpy(sqc, param->sqc, sizeof(param->sqc));
1106
1107         MLX5_SET(sqc, sqc, tis_num_0, tis_num);
1108         MLX5_SET(sqc, sqc, cqn, sq->cq.mcq.cqn);
1109         MLX5_SET(sqc, sqc, state, MLX5_SQC_STATE_RST);
1110         MLX5_SET(sqc, sqc, tis_lst_sz, 1);
1111         MLX5_SET(sqc, sqc, flush_in_error_en, 1);
1112
1113         MLX5_SET(wq, wq, wq_type, MLX5_WQ_TYPE_CYCLIC);
1114         MLX5_SET(wq, wq, uar_page, sq->uar.index);
1115         MLX5_SET(wq, wq, log_wq_pg_sz, sq->wq_ctrl.buf.page_shift -
1116             PAGE_SHIFT);
1117         MLX5_SET64(wq, wq, dbr_addr, sq->wq_ctrl.db.dma);
1118
1119         mlx5_fill_page_array(&sq->wq_ctrl.buf,
1120             (__be64 *) MLX5_ADDR_OF(wq, wq, pas));
1121
1122         err = mlx5_core_create_sq(sq->priv->mdev, in, inlen, &sq->sqn);
1123
1124         kvfree(in);
1125
1126         return (err);
1127 }
1128
1129 int
1130 mlx5e_modify_sq(struct mlx5e_sq *sq, int curr_state, int next_state)
1131 {
1132         void *in;
1133         void *sqc;
1134         int inlen;
1135         int err;
1136
1137         inlen = MLX5_ST_SZ_BYTES(modify_sq_in);
1138         in = mlx5_vzalloc(inlen);
1139         if (in == NULL)
1140                 return (-ENOMEM);
1141
1142         sqc = MLX5_ADDR_OF(modify_sq_in, in, ctx);
1143
1144         MLX5_SET(modify_sq_in, in, sqn, sq->sqn);
1145         MLX5_SET(modify_sq_in, in, sq_state, curr_state);
1146         MLX5_SET(sqc, sqc, state, next_state);
1147
1148         err = mlx5_core_modify_sq(sq->priv->mdev, in, inlen);
1149
1150         kvfree(in);
1151
1152         return (err);
1153 }
1154
1155 void
1156 mlx5e_disable_sq(struct mlx5e_sq *sq)
1157 {
1158
1159         mlx5_core_destroy_sq(sq->priv->mdev, sq->sqn);
1160 }
1161
1162 static int
1163 mlx5e_open_sq(struct mlx5e_channel *c,
1164     int tc,
1165     struct mlx5e_sq_param *param,
1166     struct mlx5e_sq *sq)
1167 {
1168         int err;
1169
1170         err = mlx5e_create_sq(c, tc, param, sq);
1171         if (err)
1172                 return (err);
1173
1174         err = mlx5e_enable_sq(sq, param, c->priv->tisn[tc]);
1175         if (err)
1176                 goto err_destroy_sq;
1177
1178         err = mlx5e_modify_sq(sq, MLX5_SQC_STATE_RST, MLX5_SQC_STATE_RDY);
1179         if (err)
1180                 goto err_disable_sq;
1181
1182         atomic_store_rel_int(&sq->queue_state, MLX5E_SQ_READY);
1183
1184         return (0);
1185
1186 err_disable_sq:
1187         mlx5e_disable_sq(sq);
1188 err_destroy_sq:
1189         mlx5e_destroy_sq(sq);
1190
1191         return (err);
1192 }
1193
1194 static void
1195 mlx5e_sq_send_nops_locked(struct mlx5e_sq *sq, int can_sleep)
1196 {
1197         /* fill up remainder with NOPs */
1198         while (sq->cev_counter != 0) {
1199                 while (!mlx5e_sq_has_room_for(sq, 1)) {
1200                         if (can_sleep != 0) {
1201                                 mtx_unlock(&sq->lock);
1202                                 msleep(4);
1203                                 mtx_lock(&sq->lock);
1204                         } else {
1205                                 goto done;
1206                         }
1207                 }
1208                 /* send a single NOP */
1209                 mlx5e_send_nop(sq, 1);
1210                 wmb();
1211         }
1212 done:
1213         /* Check if we need to write the doorbell */
1214         if (likely(sq->doorbell.d64 != 0)) {
1215                 mlx5e_tx_notify_hw(sq, sq->doorbell.d32, 0);
1216                 sq->doorbell.d64 = 0;
1217         }
1218 }
1219
1220 void
1221 mlx5e_sq_cev_timeout(void *arg)
1222 {
1223         struct mlx5e_sq *sq = arg;
1224
1225         mtx_assert(&sq->lock, MA_OWNED);
1226
1227         /* check next state */
1228         switch (sq->cev_next_state) {
1229         case MLX5E_CEV_STATE_SEND_NOPS:
1230                 /* fill TX ring with NOPs, if any */
1231                 mlx5e_sq_send_nops_locked(sq, 0);
1232
1233                 /* check if completed */
1234                 if (sq->cev_counter == 0) {
1235                         sq->cev_next_state = MLX5E_CEV_STATE_INITIAL;
1236                         return;
1237                 }
1238                 break;
1239         default:
1240                 /* send NOPs on next timeout */
1241                 sq->cev_next_state = MLX5E_CEV_STATE_SEND_NOPS;
1242                 break;
1243         }
1244
1245         /* restart timer */
1246         callout_reset_curcpu(&sq->cev_callout, hz, mlx5e_sq_cev_timeout, sq);
1247 }
1248
1249 void
1250 mlx5e_drain_sq(struct mlx5e_sq *sq)
1251 {
1252         int error;
1253
1254         /*
1255          * Check if already stopped.
1256          *
1257          * NOTE: The "stopped" variable is only written when both the
1258          * priv's configuration lock and the SQ's lock is locked. It
1259          * can therefore safely be read when only one of the two locks
1260          * is locked. This function is always called when the priv's
1261          * configuration lock is locked.
1262          */
1263         if (sq->stopped != 0)
1264                 return;
1265
1266         mtx_lock(&sq->lock);
1267
1268         /* don't put more packets into the SQ */
1269         sq->stopped = 1;
1270
1271         /* teardown event factor timer, if any */
1272         sq->cev_next_state = MLX5E_CEV_STATE_HOLD_NOPS;
1273         callout_stop(&sq->cev_callout);
1274
1275         /* send dummy NOPs in order to flush the transmit ring */
1276         mlx5e_sq_send_nops_locked(sq, 1);
1277         mtx_unlock(&sq->lock);
1278
1279         /* make sure it is safe to free the callout */
1280         callout_drain(&sq->cev_callout);
1281
1282         /* wait till SQ is empty or link is down */
1283         mtx_lock(&sq->lock);
1284         while (sq->cc != sq->pc &&
1285             (sq->priv->media_status_last & IFM_ACTIVE) != 0) {
1286                 mtx_unlock(&sq->lock);
1287                 msleep(1);
1288                 sq->cq.mcq.comp(&sq->cq.mcq);
1289                 mtx_lock(&sq->lock);
1290         }
1291         mtx_unlock(&sq->lock);
1292
1293         /* error out remaining requests */
1294         error = mlx5e_modify_sq(sq, MLX5_SQC_STATE_RDY, MLX5_SQC_STATE_ERR);
1295         if (error != 0) {
1296                 if_printf(sq->ifp,
1297                     "mlx5e_modify_sq() from RDY to ERR failed: %d\n", error);
1298         }
1299
1300         /* wait till SQ is empty */
1301         mtx_lock(&sq->lock);
1302         while (sq->cc != sq->pc) {
1303                 mtx_unlock(&sq->lock);
1304                 msleep(1);
1305                 sq->cq.mcq.comp(&sq->cq.mcq);
1306                 mtx_lock(&sq->lock);
1307         }
1308         mtx_unlock(&sq->lock);
1309 }
1310
1311 static void
1312 mlx5e_close_sq_wait(struct mlx5e_sq *sq)
1313 {
1314
1315         mlx5e_drain_sq(sq);
1316         mlx5e_disable_sq(sq);
1317         mlx5e_destroy_sq(sq);
1318 }
1319
1320 static int
1321 mlx5e_create_cq(struct mlx5e_priv *priv,
1322     struct mlx5e_cq_param *param,
1323     struct mlx5e_cq *cq,
1324     mlx5e_cq_comp_t *comp,
1325     int eq_ix)
1326 {
1327         struct mlx5_core_dev *mdev = priv->mdev;
1328         struct mlx5_core_cq *mcq = &cq->mcq;
1329         int eqn_not_used;
1330         int irqn;
1331         int err;
1332         u32 i;
1333
1334         param->wq.buf_numa_node = 0;
1335         param->wq.db_numa_node = 0;
1336
1337         err = mlx5_cqwq_create(mdev, &param->wq, param->cqc, &cq->wq,
1338             &cq->wq_ctrl);
1339         if (err)
1340                 return (err);
1341
1342         mlx5_vector2eqn(mdev, eq_ix, &eqn_not_used, &irqn);
1343
1344         mcq->cqe_sz = 64;
1345         mcq->set_ci_db = cq->wq_ctrl.db.db;
1346         mcq->arm_db = cq->wq_ctrl.db.db + 1;
1347         *mcq->set_ci_db = 0;
1348         *mcq->arm_db = 0;
1349         mcq->vector = eq_ix;
1350         mcq->comp = comp;
1351         mcq->event = mlx5e_cq_error_event;
1352         mcq->irqn = irqn;
1353         mcq->uar = &priv->cq_uar;
1354
1355         for (i = 0; i < mlx5_cqwq_get_size(&cq->wq); i++) {
1356                 struct mlx5_cqe64 *cqe = mlx5_cqwq_get_wqe(&cq->wq, i);
1357
1358                 cqe->op_own = 0xf1;
1359         }
1360
1361         cq->priv = priv;
1362
1363         return (0);
1364 }
1365
1366 static void
1367 mlx5e_destroy_cq(struct mlx5e_cq *cq)
1368 {
1369         mlx5_wq_destroy(&cq->wq_ctrl);
1370 }
1371
1372 static int
1373 mlx5e_enable_cq(struct mlx5e_cq *cq, struct mlx5e_cq_param *param, int eq_ix)
1374 {
1375         struct mlx5_core_cq *mcq = &cq->mcq;
1376         void *in;
1377         void *cqc;
1378         int inlen;
1379         int irqn_not_used;
1380         int eqn;
1381         int err;
1382
1383         inlen = MLX5_ST_SZ_BYTES(create_cq_in) +
1384             sizeof(u64) * cq->wq_ctrl.buf.npages;
1385         in = mlx5_vzalloc(inlen);
1386         if (in == NULL)
1387                 return (-ENOMEM);
1388
1389         cqc = MLX5_ADDR_OF(create_cq_in, in, cq_context);
1390
1391         memcpy(cqc, param->cqc, sizeof(param->cqc));
1392
1393         mlx5_fill_page_array(&cq->wq_ctrl.buf,
1394             (__be64 *) MLX5_ADDR_OF(create_cq_in, in, pas));
1395
1396         mlx5_vector2eqn(cq->priv->mdev, eq_ix, &eqn, &irqn_not_used);
1397
1398         MLX5_SET(cqc, cqc, c_eqn, eqn);
1399         MLX5_SET(cqc, cqc, uar_page, mcq->uar->index);
1400         MLX5_SET(cqc, cqc, log_page_size, cq->wq_ctrl.buf.page_shift -
1401             PAGE_SHIFT);
1402         MLX5_SET64(cqc, cqc, dbr_addr, cq->wq_ctrl.db.dma);
1403
1404         err = mlx5_core_create_cq(cq->priv->mdev, mcq, in, inlen);
1405
1406         kvfree(in);
1407
1408         if (err)
1409                 return (err);
1410
1411         mlx5e_cq_arm(cq, MLX5_GET_DOORBELL_LOCK(&cq->priv->doorbell_lock));
1412
1413         return (0);
1414 }
1415
1416 static void
1417 mlx5e_disable_cq(struct mlx5e_cq *cq)
1418 {
1419
1420         mlx5_core_destroy_cq(cq->priv->mdev, &cq->mcq);
1421 }
1422
1423 int
1424 mlx5e_open_cq(struct mlx5e_priv *priv,
1425     struct mlx5e_cq_param *param,
1426     struct mlx5e_cq *cq,
1427     mlx5e_cq_comp_t *comp,
1428     int eq_ix)
1429 {
1430         int err;
1431
1432         err = mlx5e_create_cq(priv, param, cq, comp, eq_ix);
1433         if (err)
1434                 return (err);
1435
1436         err = mlx5e_enable_cq(cq, param, eq_ix);
1437         if (err)
1438                 goto err_destroy_cq;
1439
1440         return (0);
1441
1442 err_destroy_cq:
1443         mlx5e_destroy_cq(cq);
1444
1445         return (err);
1446 }
1447
1448 void
1449 mlx5e_close_cq(struct mlx5e_cq *cq)
1450 {
1451         mlx5e_disable_cq(cq);
1452         mlx5e_destroy_cq(cq);
1453 }
1454
1455 static int
1456 mlx5e_open_tx_cqs(struct mlx5e_channel *c,
1457     struct mlx5e_channel_param *cparam)
1458 {
1459         int err;
1460         int tc;
1461
1462         for (tc = 0; tc < c->num_tc; tc++) {
1463                 /* open completion queue */
1464                 err = mlx5e_open_cq(c->priv, &cparam->tx_cq, &c->sq[tc].cq,
1465                     &mlx5e_tx_cq_comp, c->ix);
1466                 if (err)
1467                         goto err_close_tx_cqs;
1468         }
1469         return (0);
1470
1471 err_close_tx_cqs:
1472         for (tc--; tc >= 0; tc--)
1473                 mlx5e_close_cq(&c->sq[tc].cq);
1474
1475         return (err);
1476 }
1477
1478 static void
1479 mlx5e_close_tx_cqs(struct mlx5e_channel *c)
1480 {
1481         int tc;
1482
1483         for (tc = 0; tc < c->num_tc; tc++)
1484                 mlx5e_close_cq(&c->sq[tc].cq);
1485 }
1486
1487 static int
1488 mlx5e_open_sqs(struct mlx5e_channel *c,
1489     struct mlx5e_channel_param *cparam)
1490 {
1491         int err;
1492         int tc;
1493
1494         for (tc = 0; tc < c->num_tc; tc++) {
1495                 err = mlx5e_open_sq(c, tc, &cparam->sq, &c->sq[tc]);
1496                 if (err)
1497                         goto err_close_sqs;
1498         }
1499
1500         return (0);
1501
1502 err_close_sqs:
1503         for (tc--; tc >= 0; tc--)
1504                 mlx5e_close_sq_wait(&c->sq[tc]);
1505
1506         return (err);
1507 }
1508
1509 static void
1510 mlx5e_close_sqs_wait(struct mlx5e_channel *c)
1511 {
1512         int tc;
1513
1514         for (tc = 0; tc < c->num_tc; tc++)
1515                 mlx5e_close_sq_wait(&c->sq[tc]);
1516 }
1517
1518 static void
1519 mlx5e_chan_mtx_init(struct mlx5e_channel *c)
1520 {
1521         int tc;
1522
1523         mtx_init(&c->rq.mtx, "mlx5rx", MTX_NETWORK_LOCK, MTX_DEF);
1524
1525         callout_init_mtx(&c->rq.watchdog, &c->rq.mtx, 0);
1526
1527         for (tc = 0; tc < c->num_tc; tc++) {
1528                 struct mlx5e_sq *sq = c->sq + tc;
1529
1530                 mtx_init(&sq->lock, "mlx5tx",
1531                     MTX_NETWORK_LOCK " TX", MTX_DEF);
1532                 mtx_init(&sq->comp_lock, "mlx5comp",
1533                     MTX_NETWORK_LOCK " TX", MTX_DEF);
1534
1535                 callout_init_mtx(&sq->cev_callout, &sq->lock, 0);
1536
1537                 sq->cev_factor = c->priv->params_ethtool.tx_completion_fact;
1538
1539                 /* ensure the TX completion event factor is not zero */
1540                 if (sq->cev_factor == 0)
1541                         sq->cev_factor = 1;
1542         }
1543 }
1544
1545 static void
1546 mlx5e_chan_mtx_destroy(struct mlx5e_channel *c)
1547 {
1548         int tc;
1549
1550         mtx_destroy(&c->rq.mtx);
1551
1552         for (tc = 0; tc < c->num_tc; tc++) {
1553                 mtx_destroy(&c->sq[tc].lock);
1554                 mtx_destroy(&c->sq[tc].comp_lock);
1555         }
1556 }
1557
1558 static int
1559 mlx5e_open_channel(struct mlx5e_priv *priv, int ix,
1560     struct mlx5e_channel_param *cparam,
1561     struct mlx5e_channel *volatile *cp)
1562 {
1563         struct mlx5e_channel *c;
1564         int err;
1565
1566         c = malloc(sizeof(*c), M_MLX5EN, M_WAITOK | M_ZERO);
1567         c->priv = priv;
1568         c->ix = ix;
1569         c->cpu = 0;
1570         c->ifp = priv->ifp;
1571         c->mkey_be = cpu_to_be32(priv->mr.key);
1572         c->num_tc = priv->num_tc;
1573
1574         /* init mutexes */
1575         mlx5e_chan_mtx_init(c);
1576
1577         /* open transmit completion queue */
1578         err = mlx5e_open_tx_cqs(c, cparam);
1579         if (err)
1580                 goto err_free;
1581
1582         /* open receive completion queue */
1583         err = mlx5e_open_cq(c->priv, &cparam->rx_cq, &c->rq.cq,
1584             &mlx5e_rx_cq_comp, c->ix);
1585         if (err)
1586                 goto err_close_tx_cqs;
1587
1588         err = mlx5e_open_sqs(c, cparam);
1589         if (err)
1590                 goto err_close_rx_cq;
1591
1592         err = mlx5e_open_rq(c, &cparam->rq, &c->rq);
1593         if (err)
1594                 goto err_close_sqs;
1595
1596         /* store channel pointer */
1597         *cp = c;
1598
1599         /* poll receive queue initially */
1600         c->rq.cq.mcq.comp(&c->rq.cq.mcq);
1601
1602         return (0);
1603
1604 err_close_sqs:
1605         mlx5e_close_sqs_wait(c);
1606
1607 err_close_rx_cq:
1608         mlx5e_close_cq(&c->rq.cq);
1609
1610 err_close_tx_cqs:
1611         mlx5e_close_tx_cqs(c);
1612
1613 err_free:
1614         /* destroy mutexes */
1615         mlx5e_chan_mtx_destroy(c);
1616         free(c, M_MLX5EN);
1617         return (err);
1618 }
1619
1620 static void
1621 mlx5e_close_channel(struct mlx5e_channel *volatile *pp)
1622 {
1623         struct mlx5e_channel *c = *pp;
1624
1625         /* check if channel is already closed */
1626         if (c == NULL)
1627                 return;
1628         mlx5e_close_rq(&c->rq);
1629 }
1630
1631 static void
1632 mlx5e_close_channel_wait(struct mlx5e_channel *volatile *pp)
1633 {
1634         struct mlx5e_channel *c = *pp;
1635
1636         /* check if channel is already closed */
1637         if (c == NULL)
1638                 return;
1639         /* ensure channel pointer is no longer used */
1640         *pp = NULL;
1641
1642         mlx5e_close_rq_wait(&c->rq);
1643         mlx5e_close_sqs_wait(c);
1644         mlx5e_close_cq(&c->rq.cq);
1645         mlx5e_close_tx_cqs(c);
1646         /* destroy mutexes */
1647         mlx5e_chan_mtx_destroy(c);
1648         free(c, M_MLX5EN);
1649 }
1650
1651 static void
1652 mlx5e_build_rq_param(struct mlx5e_priv *priv,
1653     struct mlx5e_rq_param *param)
1654 {
1655         void *rqc = param->rqc;
1656         void *wq = MLX5_ADDR_OF(rqc, rqc, wq);
1657
1658         MLX5_SET(wq, wq, wq_type, MLX5_WQ_TYPE_LINKED_LIST);
1659         MLX5_SET(wq, wq, end_padding_mode, MLX5_WQ_END_PAD_MODE_ALIGN);
1660         MLX5_SET(wq, wq, log_wq_stride, ilog2(sizeof(struct mlx5e_rx_wqe)));
1661         MLX5_SET(wq, wq, log_wq_sz, priv->params.log_rq_size);
1662         MLX5_SET(wq, wq, pd, priv->pdn);
1663
1664         param->wq.buf_numa_node = 0;
1665         param->wq.db_numa_node = 0;
1666         param->wq.linear = 1;
1667 }
1668
1669 static void
1670 mlx5e_build_sq_param(struct mlx5e_priv *priv,
1671     struct mlx5e_sq_param *param)
1672 {
1673         void *sqc = param->sqc;
1674         void *wq = MLX5_ADDR_OF(sqc, sqc, wq);
1675
1676         MLX5_SET(wq, wq, log_wq_sz, priv->params.log_sq_size);
1677         MLX5_SET(wq, wq, log_wq_stride, ilog2(MLX5_SEND_WQE_BB));
1678         MLX5_SET(wq, wq, pd, priv->pdn);
1679
1680         param->wq.buf_numa_node = 0;
1681         param->wq.db_numa_node = 0;
1682         param->wq.linear = 1;
1683 }
1684
1685 static void
1686 mlx5e_build_common_cq_param(struct mlx5e_priv *priv,
1687     struct mlx5e_cq_param *param)
1688 {
1689         void *cqc = param->cqc;
1690
1691         MLX5_SET(cqc, cqc, uar_page, priv->cq_uar.index);
1692 }
1693
1694 static void
1695 mlx5e_build_rx_cq_param(struct mlx5e_priv *priv,
1696     struct mlx5e_cq_param *param)
1697 {
1698         void *cqc = param->cqc;
1699
1700
1701         /*
1702          * TODO The sysctl to control on/off is a bool value for now, which means
1703          * we only support CSUM, once HASH is implemnted we'll need to address that.
1704          */
1705         if (priv->params.cqe_zipping_en) {
1706                 MLX5_SET(cqc, cqc, mini_cqe_res_format, MLX5_CQE_FORMAT_CSUM);
1707                 MLX5_SET(cqc, cqc, cqe_compression_en, 1);
1708         }
1709
1710         MLX5_SET(cqc, cqc, log_cq_size, priv->params.log_rq_size);
1711         MLX5_SET(cqc, cqc, cq_period, priv->params.rx_cq_moderation_usec);
1712         MLX5_SET(cqc, cqc, cq_max_count, priv->params.rx_cq_moderation_pkts);
1713
1714         switch (priv->params.rx_cq_moderation_mode) {
1715         case 0:
1716                 MLX5_SET(cqc, cqc, cq_period_mode, MLX5_CQ_PERIOD_MODE_START_FROM_EQE);
1717                 break;
1718         default:
1719                 if (MLX5_CAP_GEN(priv->mdev, cq_period_start_from_cqe))
1720                         MLX5_SET(cqc, cqc, cq_period_mode, MLX5_CQ_PERIOD_MODE_START_FROM_CQE);
1721                 else
1722                         MLX5_SET(cqc, cqc, cq_period_mode, MLX5_CQ_PERIOD_MODE_START_FROM_EQE);
1723                 break;
1724         }
1725
1726         mlx5e_build_common_cq_param(priv, param);
1727 }
1728
1729 static void
1730 mlx5e_build_tx_cq_param(struct mlx5e_priv *priv,
1731     struct mlx5e_cq_param *param)
1732 {
1733         void *cqc = param->cqc;
1734
1735         MLX5_SET(cqc, cqc, log_cq_size, priv->params.log_sq_size);
1736         MLX5_SET(cqc, cqc, cq_period, priv->params.tx_cq_moderation_usec);
1737         MLX5_SET(cqc, cqc, cq_max_count, priv->params.tx_cq_moderation_pkts);
1738
1739         switch (priv->params.tx_cq_moderation_mode) {
1740         case 0:
1741                 MLX5_SET(cqc, cqc, cq_period_mode, MLX5_CQ_PERIOD_MODE_START_FROM_EQE);
1742                 break;
1743         default:
1744                 if (MLX5_CAP_GEN(priv->mdev, cq_period_start_from_cqe))
1745                         MLX5_SET(cqc, cqc, cq_period_mode, MLX5_CQ_PERIOD_MODE_START_FROM_CQE);
1746                 else
1747                         MLX5_SET(cqc, cqc, cq_period_mode, MLX5_CQ_PERIOD_MODE_START_FROM_EQE);
1748                 break;
1749         }
1750
1751         mlx5e_build_common_cq_param(priv, param);
1752 }
1753
1754 static void
1755 mlx5e_build_channel_param(struct mlx5e_priv *priv,
1756     struct mlx5e_channel_param *cparam)
1757 {
1758         memset(cparam, 0, sizeof(*cparam));
1759
1760         mlx5e_build_rq_param(priv, &cparam->rq);
1761         mlx5e_build_sq_param(priv, &cparam->sq);
1762         mlx5e_build_rx_cq_param(priv, &cparam->rx_cq);
1763         mlx5e_build_tx_cq_param(priv, &cparam->tx_cq);
1764 }
1765
1766 static int
1767 mlx5e_open_channels(struct mlx5e_priv *priv)
1768 {
1769         struct mlx5e_channel_param cparam;
1770         void *ptr;
1771         int err;
1772         int i;
1773         int j;
1774
1775         priv->channel = malloc(priv->params.num_channels *
1776             sizeof(struct mlx5e_channel *), M_MLX5EN, M_WAITOK | M_ZERO);
1777
1778         mlx5e_build_channel_param(priv, &cparam);
1779         for (i = 0; i < priv->params.num_channels; i++) {
1780                 err = mlx5e_open_channel(priv, i, &cparam, &priv->channel[i]);
1781                 if (err)
1782                         goto err_close_channels;
1783         }
1784
1785         for (j = 0; j < priv->params.num_channels; j++) {
1786                 err = mlx5e_wait_for_min_rx_wqes(&priv->channel[j]->rq);
1787                 if (err)
1788                         goto err_close_channels;
1789         }
1790
1791         return (0);
1792
1793 err_close_channels:
1794         for (i--; i >= 0; i--) {
1795                 mlx5e_close_channel(&priv->channel[i]);
1796                 mlx5e_close_channel_wait(&priv->channel[i]);
1797         }
1798
1799         /* remove "volatile" attribute from "channel" pointer */
1800         ptr = __DECONST(void *, priv->channel);
1801         priv->channel = NULL;
1802
1803         free(ptr, M_MLX5EN);
1804
1805         return (err);
1806 }
1807
1808 static void
1809 mlx5e_close_channels(struct mlx5e_priv *priv)
1810 {
1811         void *ptr;
1812         int i;
1813
1814         if (priv->channel == NULL)
1815                 return;
1816
1817         for (i = 0; i < priv->params.num_channels; i++)
1818                 mlx5e_close_channel(&priv->channel[i]);
1819         for (i = 0; i < priv->params.num_channels; i++)
1820                 mlx5e_close_channel_wait(&priv->channel[i]);
1821
1822         /* remove "volatile" attribute from "channel" pointer */
1823         ptr = __DECONST(void *, priv->channel);
1824         priv->channel = NULL;
1825
1826         free(ptr, M_MLX5EN);
1827 }
1828
1829 static int
1830 mlx5e_refresh_sq_params(struct mlx5e_priv *priv, struct mlx5e_sq *sq)
1831 {
1832
1833         if (MLX5_CAP_GEN(priv->mdev, cq_period_mode_modify)) {
1834                 uint8_t cq_mode;
1835
1836                 switch (priv->params.tx_cq_moderation_mode) {
1837                 case 0:
1838                         cq_mode = MLX5_CQ_PERIOD_MODE_START_FROM_EQE;
1839                         break;
1840                 default:
1841                         cq_mode = MLX5_CQ_PERIOD_MODE_START_FROM_CQE;
1842                         break;
1843                 }
1844
1845                 return (mlx5_core_modify_cq_moderation_mode(priv->mdev, &sq->cq.mcq,
1846                     priv->params.tx_cq_moderation_usec,
1847                     priv->params.tx_cq_moderation_pkts,
1848                     cq_mode));
1849         }
1850
1851         return (mlx5_core_modify_cq_moderation(priv->mdev, &sq->cq.mcq,
1852             priv->params.tx_cq_moderation_usec,
1853             priv->params.tx_cq_moderation_pkts));
1854 }
1855
1856 static int
1857 mlx5e_refresh_rq_params(struct mlx5e_priv *priv, struct mlx5e_rq *rq)
1858 {
1859
1860         if (MLX5_CAP_GEN(priv->mdev, cq_period_mode_modify)) {
1861                 uint8_t cq_mode;
1862                 int retval;
1863
1864                 switch (priv->params.rx_cq_moderation_mode) {
1865                 case 0:
1866                         cq_mode = MLX5_CQ_PERIOD_MODE_START_FROM_EQE;
1867                         break;
1868                 default:
1869                         cq_mode = MLX5_CQ_PERIOD_MODE_START_FROM_CQE;
1870                         break;
1871                 }
1872
1873                 retval = mlx5_core_modify_cq_moderation_mode(priv->mdev, &rq->cq.mcq,
1874                     priv->params.rx_cq_moderation_usec,
1875                     priv->params.rx_cq_moderation_pkts,
1876                     cq_mode);
1877
1878                 return (retval);
1879         }
1880
1881         return (mlx5_core_modify_cq_moderation(priv->mdev, &rq->cq.mcq,
1882             priv->params.rx_cq_moderation_usec,
1883             priv->params.rx_cq_moderation_pkts));
1884 }
1885
1886 static int
1887 mlx5e_refresh_channel_params_sub(struct mlx5e_priv *priv, struct mlx5e_channel *c)
1888 {
1889         int err;
1890         int i;
1891
1892         if (c == NULL)
1893                 return (EINVAL);
1894
1895         err = mlx5e_refresh_rq_params(priv, &c->rq);
1896         if (err)
1897                 goto done;
1898
1899         for (i = 0; i != c->num_tc; i++) {
1900                 err = mlx5e_refresh_sq_params(priv, &c->sq[i]);
1901                 if (err)
1902                         goto done;
1903         }
1904 done:
1905         return (err);
1906 }
1907
1908 int
1909 mlx5e_refresh_channel_params(struct mlx5e_priv *priv)
1910 {
1911         int i;
1912
1913         if (priv->channel == NULL)
1914                 return (EINVAL);
1915
1916         for (i = 0; i < priv->params.num_channels; i++) {
1917                 int err;
1918
1919                 err = mlx5e_refresh_channel_params_sub(priv, priv->channel[i]);
1920                 if (err)
1921                         return (err);
1922         }
1923         return (0);
1924 }
1925
1926 static int
1927 mlx5e_open_tis(struct mlx5e_priv *priv, int tc)
1928 {
1929         struct mlx5_core_dev *mdev = priv->mdev;
1930         u32 in[MLX5_ST_SZ_DW(create_tis_in)];
1931         void *tisc = MLX5_ADDR_OF(create_tis_in, in, ctx);
1932
1933         memset(in, 0, sizeof(in));
1934
1935         MLX5_SET(tisc, tisc, prio, tc);
1936         MLX5_SET(tisc, tisc, transport_domain, priv->tdn);
1937
1938         return (mlx5_core_create_tis(mdev, in, sizeof(in), &priv->tisn[tc]));
1939 }
1940
1941 static void
1942 mlx5e_close_tis(struct mlx5e_priv *priv, int tc)
1943 {
1944         mlx5_core_destroy_tis(priv->mdev, priv->tisn[tc]);
1945 }
1946
1947 static int
1948 mlx5e_open_tises(struct mlx5e_priv *priv)
1949 {
1950         int num_tc = priv->num_tc;
1951         int err;
1952         int tc;
1953
1954         for (tc = 0; tc < num_tc; tc++) {
1955                 err = mlx5e_open_tis(priv, tc);
1956                 if (err)
1957                         goto err_close_tises;
1958         }
1959
1960         return (0);
1961
1962 err_close_tises:
1963         for (tc--; tc >= 0; tc--)
1964                 mlx5e_close_tis(priv, tc);
1965
1966         return (err);
1967 }
1968
1969 static void
1970 mlx5e_close_tises(struct mlx5e_priv *priv)
1971 {
1972         int num_tc = priv->num_tc;
1973         int tc;
1974
1975         for (tc = 0; tc < num_tc; tc++)
1976                 mlx5e_close_tis(priv, tc);
1977 }
1978
1979 static int
1980 mlx5e_open_rqt(struct mlx5e_priv *priv)
1981 {
1982         struct mlx5_core_dev *mdev = priv->mdev;
1983         u32 *in;
1984         u32 out[MLX5_ST_SZ_DW(create_rqt_out)];
1985         void *rqtc;
1986         int inlen;
1987         int err;
1988         int sz;
1989         int i;
1990
1991         sz = 1 << priv->params.rx_hash_log_tbl_sz;
1992
1993         inlen = MLX5_ST_SZ_BYTES(create_rqt_in) + sizeof(u32) * sz;
1994         in = mlx5_vzalloc(inlen);
1995         if (in == NULL)
1996                 return (-ENOMEM);
1997         rqtc = MLX5_ADDR_OF(create_rqt_in, in, rqt_context);
1998
1999         MLX5_SET(rqtc, rqtc, rqt_actual_size, sz);
2000         MLX5_SET(rqtc, rqtc, rqt_max_size, sz);
2001
2002         for (i = 0; i < sz; i++) {
2003                 int ix;
2004 #ifdef RSS
2005                 ix = rss_get_indirection_to_bucket(i);
2006 #else
2007                 ix = i;
2008 #endif
2009                 /* ensure we don't overflow */
2010                 ix %= priv->params.num_channels;
2011                 MLX5_SET(rqtc, rqtc, rq_num[i], priv->channel[ix]->rq.rqn);
2012         }
2013
2014         MLX5_SET(create_rqt_in, in, opcode, MLX5_CMD_OP_CREATE_RQT);
2015
2016         memset(out, 0, sizeof(out));
2017         err = mlx5_cmd_exec_check_status(mdev, in, inlen, out, sizeof(out));
2018         if (!err)
2019                 priv->rqtn = MLX5_GET(create_rqt_out, out, rqtn);
2020
2021         kvfree(in);
2022
2023         return (err);
2024 }
2025
2026 static void
2027 mlx5e_close_rqt(struct mlx5e_priv *priv)
2028 {
2029         u32 in[MLX5_ST_SZ_DW(destroy_rqt_in)];
2030         u32 out[MLX5_ST_SZ_DW(destroy_rqt_out)];
2031
2032         memset(in, 0, sizeof(in));
2033
2034         MLX5_SET(destroy_rqt_in, in, opcode, MLX5_CMD_OP_DESTROY_RQT);
2035         MLX5_SET(destroy_rqt_in, in, rqtn, priv->rqtn);
2036
2037         mlx5_cmd_exec_check_status(priv->mdev, in, sizeof(in), out,
2038             sizeof(out));
2039 }
2040
2041 static void
2042 mlx5e_build_tir_ctx(struct mlx5e_priv *priv, u32 * tirc, int tt)
2043 {
2044         void *hfso = MLX5_ADDR_OF(tirc, tirc, rx_hash_field_selector_outer);
2045         __be32 *hkey;
2046
2047         MLX5_SET(tirc, tirc, transport_domain, priv->tdn);
2048
2049 #define ROUGH_MAX_L2_L3_HDR_SZ 256
2050
2051 #define MLX5_HASH_IP     (MLX5_HASH_FIELD_SEL_SRC_IP   |\
2052                           MLX5_HASH_FIELD_SEL_DST_IP)
2053
2054 #define MLX5_HASH_ALL    (MLX5_HASH_FIELD_SEL_SRC_IP   |\
2055                           MLX5_HASH_FIELD_SEL_DST_IP   |\
2056                           MLX5_HASH_FIELD_SEL_L4_SPORT |\
2057                           MLX5_HASH_FIELD_SEL_L4_DPORT)
2058
2059 #define MLX5_HASH_IP_IPSEC_SPI  (MLX5_HASH_FIELD_SEL_SRC_IP   |\
2060                                  MLX5_HASH_FIELD_SEL_DST_IP   |\
2061                                  MLX5_HASH_FIELD_SEL_IPSEC_SPI)
2062
2063         if (priv->params.hw_lro_en) {
2064                 MLX5_SET(tirc, tirc, lro_enable_mask,
2065                     MLX5_TIRC_LRO_ENABLE_MASK_IPV4_LRO |
2066                     MLX5_TIRC_LRO_ENABLE_MASK_IPV6_LRO);
2067                 MLX5_SET(tirc, tirc, lro_max_msg_sz,
2068                     (priv->params.lro_wqe_sz -
2069                     ROUGH_MAX_L2_L3_HDR_SZ) >> 8);
2070                 /* TODO: add the option to choose timer value dynamically */
2071                 MLX5_SET(tirc, tirc, lro_timeout_period_usecs,
2072                     MLX5_CAP_ETH(priv->mdev,
2073                     lro_timer_supported_periods[2]));
2074         }
2075
2076         /* setup parameters for hashing TIR type, if any */
2077         switch (tt) {
2078         case MLX5E_TT_ANY:
2079                 MLX5_SET(tirc, tirc, disp_type,
2080                     MLX5_TIRC_DISP_TYPE_DIRECT);
2081                 MLX5_SET(tirc, tirc, inline_rqn,
2082                     priv->channel[0]->rq.rqn);
2083                 break;
2084         default:
2085                 MLX5_SET(tirc, tirc, disp_type,
2086                     MLX5_TIRC_DISP_TYPE_INDIRECT);
2087                 MLX5_SET(tirc, tirc, indirect_table,
2088                     priv->rqtn);
2089                 MLX5_SET(tirc, tirc, rx_hash_fn,
2090                     MLX5_TIRC_RX_HASH_FN_HASH_TOEPLITZ);
2091                 hkey = (__be32 *) MLX5_ADDR_OF(tirc, tirc, rx_hash_toeplitz_key);
2092 #ifdef RSS
2093                 /*
2094                  * The FreeBSD RSS implementation does currently not
2095                  * support symmetric Toeplitz hashes:
2096                  */
2097                 MLX5_SET(tirc, tirc, rx_hash_symmetric, 0);
2098                 rss_getkey((uint8_t *)hkey);
2099 #else
2100                 MLX5_SET(tirc, tirc, rx_hash_symmetric, 1);
2101                 hkey[0] = cpu_to_be32(0xD181C62C);
2102                 hkey[1] = cpu_to_be32(0xF7F4DB5B);
2103                 hkey[2] = cpu_to_be32(0x1983A2FC);
2104                 hkey[3] = cpu_to_be32(0x943E1ADB);
2105                 hkey[4] = cpu_to_be32(0xD9389E6B);
2106                 hkey[5] = cpu_to_be32(0xD1039C2C);
2107                 hkey[6] = cpu_to_be32(0xA74499AD);
2108                 hkey[7] = cpu_to_be32(0x593D56D9);
2109                 hkey[8] = cpu_to_be32(0xF3253C06);
2110                 hkey[9] = cpu_to_be32(0x2ADC1FFC);
2111 #endif
2112                 break;
2113         }
2114
2115         switch (tt) {
2116         case MLX5E_TT_IPV4_TCP:
2117                 MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
2118                     MLX5_L3_PROT_TYPE_IPV4);
2119                 MLX5_SET(rx_hash_field_select, hfso, l4_prot_type,
2120                     MLX5_L4_PROT_TYPE_TCP);
2121 #ifdef RSS
2122                 if (!(rss_gethashconfig() & RSS_HASHTYPE_RSS_TCP_IPV4)) {
2123                         MLX5_SET(rx_hash_field_select, hfso, selected_fields,
2124                             MLX5_HASH_IP);
2125                 } else
2126 #endif
2127                 MLX5_SET(rx_hash_field_select, hfso, selected_fields,
2128                     MLX5_HASH_ALL);
2129                 break;
2130
2131         case MLX5E_TT_IPV6_TCP:
2132                 MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
2133                     MLX5_L3_PROT_TYPE_IPV6);
2134                 MLX5_SET(rx_hash_field_select, hfso, l4_prot_type,
2135                     MLX5_L4_PROT_TYPE_TCP);
2136 #ifdef RSS
2137                 if (!(rss_gethashconfig() & RSS_HASHTYPE_RSS_TCP_IPV6)) {
2138                         MLX5_SET(rx_hash_field_select, hfso, selected_fields,
2139                             MLX5_HASH_IP);
2140                 } else
2141 #endif
2142                 MLX5_SET(rx_hash_field_select, hfso, selected_fields,
2143                     MLX5_HASH_ALL);
2144                 break;
2145
2146         case MLX5E_TT_IPV4_UDP:
2147                 MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
2148                     MLX5_L3_PROT_TYPE_IPV4);
2149                 MLX5_SET(rx_hash_field_select, hfso, l4_prot_type,
2150                     MLX5_L4_PROT_TYPE_UDP);
2151 #ifdef RSS
2152                 if (!(rss_gethashconfig() & RSS_HASHTYPE_RSS_UDP_IPV4)) {
2153                         MLX5_SET(rx_hash_field_select, hfso, selected_fields,
2154                             MLX5_HASH_IP);
2155                 } else
2156 #endif
2157                 MLX5_SET(rx_hash_field_select, hfso, selected_fields,
2158                     MLX5_HASH_ALL);
2159                 break;
2160
2161         case MLX5E_TT_IPV6_UDP:
2162                 MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
2163                     MLX5_L3_PROT_TYPE_IPV6);
2164                 MLX5_SET(rx_hash_field_select, hfso, l4_prot_type,
2165                     MLX5_L4_PROT_TYPE_UDP);
2166 #ifdef RSS
2167                 if (!(rss_gethashconfig() & RSS_HASHTYPE_RSS_UDP_IPV6)) {
2168                         MLX5_SET(rx_hash_field_select, hfso, selected_fields,
2169                             MLX5_HASH_IP);
2170                 } else
2171 #endif
2172                 MLX5_SET(rx_hash_field_select, hfso, selected_fields,
2173                     MLX5_HASH_ALL);
2174                 break;
2175
2176         case MLX5E_TT_IPV4_IPSEC_AH:
2177                 MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
2178                     MLX5_L3_PROT_TYPE_IPV4);
2179                 MLX5_SET(rx_hash_field_select, hfso, selected_fields,
2180                     MLX5_HASH_IP_IPSEC_SPI);
2181                 break;
2182
2183         case MLX5E_TT_IPV6_IPSEC_AH:
2184                 MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
2185                     MLX5_L3_PROT_TYPE_IPV6);
2186                 MLX5_SET(rx_hash_field_select, hfso, selected_fields,
2187                     MLX5_HASH_IP_IPSEC_SPI);
2188                 break;
2189
2190         case MLX5E_TT_IPV4_IPSEC_ESP:
2191                 MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
2192                     MLX5_L3_PROT_TYPE_IPV4);
2193                 MLX5_SET(rx_hash_field_select, hfso, selected_fields,
2194                     MLX5_HASH_IP_IPSEC_SPI);
2195                 break;
2196
2197         case MLX5E_TT_IPV6_IPSEC_ESP:
2198                 MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
2199                     MLX5_L3_PROT_TYPE_IPV6);
2200                 MLX5_SET(rx_hash_field_select, hfso, selected_fields,
2201                     MLX5_HASH_IP_IPSEC_SPI);
2202                 break;
2203
2204         case MLX5E_TT_IPV4:
2205                 MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
2206                     MLX5_L3_PROT_TYPE_IPV4);
2207                 MLX5_SET(rx_hash_field_select, hfso, selected_fields,
2208                     MLX5_HASH_IP);
2209                 break;
2210
2211         case MLX5E_TT_IPV6:
2212                 MLX5_SET(rx_hash_field_select, hfso, l3_prot_type,
2213                     MLX5_L3_PROT_TYPE_IPV6);
2214                 MLX5_SET(rx_hash_field_select, hfso, selected_fields,
2215                     MLX5_HASH_IP);
2216                 break;
2217
2218         default:
2219                 break;
2220         }
2221 }
2222
2223 static int
2224 mlx5e_open_tir(struct mlx5e_priv *priv, int tt)
2225 {
2226         struct mlx5_core_dev *mdev = priv->mdev;
2227         u32 *in;
2228         void *tirc;
2229         int inlen;
2230         int err;
2231
2232         inlen = MLX5_ST_SZ_BYTES(create_tir_in);
2233         in = mlx5_vzalloc(inlen);
2234         if (in == NULL)
2235                 return (-ENOMEM);
2236         tirc = MLX5_ADDR_OF(create_tir_in, in, tir_context);
2237
2238         mlx5e_build_tir_ctx(priv, tirc, tt);
2239
2240         err = mlx5_core_create_tir(mdev, in, inlen, &priv->tirn[tt]);
2241
2242         kvfree(in);
2243
2244         return (err);
2245 }
2246
2247 static void
2248 mlx5e_close_tir(struct mlx5e_priv *priv, int tt)
2249 {
2250         mlx5_core_destroy_tir(priv->mdev, priv->tirn[tt]);
2251 }
2252
2253 static int
2254 mlx5e_open_tirs(struct mlx5e_priv *priv)
2255 {
2256         int err;
2257         int i;
2258
2259         for (i = 0; i < MLX5E_NUM_TT; i++) {
2260                 err = mlx5e_open_tir(priv, i);
2261                 if (err)
2262                         goto err_close_tirs;
2263         }
2264
2265         return (0);
2266
2267 err_close_tirs:
2268         for (i--; i >= 0; i--)
2269                 mlx5e_close_tir(priv, i);
2270
2271         return (err);
2272 }
2273
2274 static void
2275 mlx5e_close_tirs(struct mlx5e_priv *priv)
2276 {
2277         int i;
2278
2279         for (i = 0; i < MLX5E_NUM_TT; i++)
2280                 mlx5e_close_tir(priv, i);
2281 }
2282
2283 /*
2284  * SW MTU does not include headers,
2285  * HW MTU includes all headers and checksums.
2286  */
2287 static int
2288 mlx5e_set_dev_port_mtu(struct ifnet *ifp, int sw_mtu)
2289 {
2290         struct mlx5e_priv *priv = ifp->if_softc;
2291         struct mlx5_core_dev *mdev = priv->mdev;
2292         int hw_mtu;
2293         int err;
2294
2295         err = mlx5_set_port_mtu(mdev, MLX5E_SW2HW_MTU(sw_mtu));
2296         if (err) {
2297                 if_printf(ifp, "%s: mlx5_set_port_mtu failed setting %d, err=%d\n",
2298                     __func__, sw_mtu, err);
2299                 return (err);
2300         }
2301
2302         ifp->if_mtu = sw_mtu;
2303         err = mlx5_query_port_oper_mtu(mdev, &hw_mtu);
2304         if (err) {
2305                 if_printf(ifp, "Query port MTU, after setting new "
2306                     "MTU value, failed\n");
2307                 return (err);
2308         } else if (MLX5E_HW2SW_MTU(hw_mtu) < sw_mtu) {
2309                 err = -E2BIG,
2310                 if_printf(ifp, "Port MTU %d is smaller than "
2311                     "ifp mtu %d\n", hw_mtu, sw_mtu);
2312         } else if (MLX5E_HW2SW_MTU(hw_mtu) > sw_mtu) {
2313                 err = -EINVAL;
2314                 if_printf(ifp, "Port MTU %d is bigger than "
2315                     "ifp mtu %d\n", hw_mtu, sw_mtu);
2316         }
2317         priv->params_ethtool.hw_mtu = hw_mtu;
2318
2319         return (err);
2320 }
2321
2322 int
2323 mlx5e_open_locked(struct ifnet *ifp)
2324 {
2325         struct mlx5e_priv *priv = ifp->if_softc;
2326         int err;
2327         u16 set_id;
2328
2329         /* check if already opened */
2330         if (test_bit(MLX5E_STATE_OPENED, &priv->state) != 0)
2331                 return (0);
2332
2333 #ifdef RSS
2334         if (rss_getnumbuckets() > priv->params.num_channels) {
2335                 if_printf(ifp, "NOTE: There are more RSS buckets(%u) than "
2336                     "channels(%u) available\n", rss_getnumbuckets(),
2337                     priv->params.num_channels);
2338         }
2339 #endif
2340         err = mlx5e_open_tises(priv);
2341         if (err) {
2342                 if_printf(ifp, "%s: mlx5e_open_tises failed, %d\n",
2343                     __func__, err);
2344                 return (err);
2345         }
2346         err = mlx5_vport_alloc_q_counter(priv->mdev,
2347             MLX5_INTERFACE_PROTOCOL_ETH, &set_id);
2348         if (err) {
2349                 if_printf(priv->ifp,
2350                     "%s: mlx5_vport_alloc_q_counter failed: %d\n",
2351                     __func__, err);
2352                 goto err_close_tises;
2353         }
2354         /* store counter set ID */
2355         priv->counter_set_id = set_id;
2356
2357         err = mlx5e_open_channels(priv);
2358         if (err) {
2359                 if_printf(ifp, "%s: mlx5e_open_channels failed, %d\n",
2360                     __func__, err);
2361                 goto err_dalloc_q_counter;
2362         }
2363         err = mlx5e_open_rqt(priv);
2364         if (err) {
2365                 if_printf(ifp, "%s: mlx5e_open_rqt failed, %d\n",
2366                     __func__, err);
2367                 goto err_close_channels;
2368         }
2369         err = mlx5e_open_tirs(priv);
2370         if (err) {
2371                 if_printf(ifp, "%s: mlx5e_open_tir failed, %d\n",
2372                     __func__, err);
2373                 goto err_close_rqls;
2374         }
2375         err = mlx5e_open_flow_table(priv);
2376         if (err) {
2377                 if_printf(ifp, "%s: mlx5e_open_flow_table failed, %d\n",
2378                     __func__, err);
2379                 goto err_close_tirs;
2380         }
2381         err = mlx5e_add_all_vlan_rules(priv);
2382         if (err) {
2383                 if_printf(ifp, "%s: mlx5e_add_all_vlan_rules failed, %d\n",
2384                     __func__, err);
2385                 goto err_close_flow_table;
2386         }
2387         set_bit(MLX5E_STATE_OPENED, &priv->state);
2388
2389         mlx5e_update_carrier(priv);
2390         mlx5e_set_rx_mode_core(priv);
2391
2392         return (0);
2393
2394 err_close_flow_table:
2395         mlx5e_close_flow_table(priv);
2396
2397 err_close_tirs:
2398         mlx5e_close_tirs(priv);
2399
2400 err_close_rqls:
2401         mlx5e_close_rqt(priv);
2402
2403 err_close_channels:
2404         mlx5e_close_channels(priv);
2405
2406 err_dalloc_q_counter:
2407         mlx5_vport_dealloc_q_counter(priv->mdev,
2408             MLX5_INTERFACE_PROTOCOL_ETH, priv->counter_set_id);
2409
2410 err_close_tises:
2411         mlx5e_close_tises(priv);
2412
2413         return (err);
2414 }
2415
2416 static void
2417 mlx5e_open(void *arg)
2418 {
2419         struct mlx5e_priv *priv = arg;
2420
2421         PRIV_LOCK(priv);
2422         if (mlx5_set_port_status(priv->mdev, MLX5_PORT_UP))
2423                 if_printf(priv->ifp,
2424                     "%s: Setting port status to up failed\n",
2425                     __func__);
2426
2427         mlx5e_open_locked(priv->ifp);
2428         priv->ifp->if_drv_flags |= IFF_DRV_RUNNING;
2429         PRIV_UNLOCK(priv);
2430 }
2431
2432 int
2433 mlx5e_close_locked(struct ifnet *ifp)
2434 {
2435         struct mlx5e_priv *priv = ifp->if_softc;
2436
2437         /* check if already closed */
2438         if (test_bit(MLX5E_STATE_OPENED, &priv->state) == 0)
2439                 return (0);
2440
2441         clear_bit(MLX5E_STATE_OPENED, &priv->state);
2442
2443         mlx5e_set_rx_mode_core(priv);
2444         mlx5e_del_all_vlan_rules(priv);
2445         if_link_state_change(priv->ifp, LINK_STATE_DOWN);
2446         mlx5e_close_flow_table(priv);
2447         mlx5e_close_tirs(priv);
2448         mlx5e_close_rqt(priv);
2449         mlx5e_close_channels(priv);
2450         mlx5_vport_dealloc_q_counter(priv->mdev,
2451             MLX5_INTERFACE_PROTOCOL_ETH, priv->counter_set_id);
2452         mlx5e_close_tises(priv);
2453
2454         return (0);
2455 }
2456
2457 #if (__FreeBSD_version >= 1100000)
2458 static uint64_t
2459 mlx5e_get_counter(struct ifnet *ifp, ift_counter cnt)
2460 {
2461         struct mlx5e_priv *priv = ifp->if_softc;
2462         u64 retval;
2463
2464         /* PRIV_LOCK(priv); XXX not allowed */
2465         switch (cnt) {
2466         case IFCOUNTER_IPACKETS:
2467                 retval = priv->stats.vport.rx_packets;
2468                 break;
2469         case IFCOUNTER_IERRORS:
2470                 retval = priv->stats.vport.rx_error_packets +
2471                     priv->stats.pport.alignment_err +
2472                     priv->stats.pport.check_seq_err +
2473                     priv->stats.pport.crc_align_errors +
2474                     priv->stats.pport.in_range_len_errors +
2475                     priv->stats.pport.jabbers +
2476                     priv->stats.pport.out_of_range_len +
2477                     priv->stats.pport.oversize_pkts +
2478                     priv->stats.pport.symbol_err +
2479                     priv->stats.pport.too_long_errors +
2480                     priv->stats.pport.undersize_pkts +
2481                     priv->stats.pport.unsupported_op_rx;
2482                 break;
2483         case IFCOUNTER_IQDROPS:
2484                 retval = priv->stats.vport.rx_out_of_buffer +
2485                     priv->stats.pport.drop_events;
2486                 break;
2487         case IFCOUNTER_OPACKETS:
2488                 retval = priv->stats.vport.tx_packets;
2489                 break;
2490         case IFCOUNTER_OERRORS:
2491                 retval = priv->stats.vport.tx_error_packets;
2492                 break;
2493         case IFCOUNTER_IBYTES:
2494                 retval = priv->stats.vport.rx_bytes;
2495                 break;
2496         case IFCOUNTER_OBYTES:
2497                 retval = priv->stats.vport.tx_bytes;
2498                 break;
2499         case IFCOUNTER_IMCASTS:
2500                 retval = priv->stats.vport.rx_multicast_packets;
2501                 break;
2502         case IFCOUNTER_OMCASTS:
2503                 retval = priv->stats.vport.tx_multicast_packets;
2504                 break;
2505         case IFCOUNTER_OQDROPS:
2506                 retval = priv->stats.vport.tx_queue_dropped;
2507                 break;
2508         case IFCOUNTER_COLLISIONS:
2509                 retval = priv->stats.pport.collisions;
2510                 break;
2511         default:
2512                 retval = if_get_counter_default(ifp, cnt);
2513                 break;
2514         }
2515         /* PRIV_UNLOCK(priv); XXX not allowed */
2516         return (retval);
2517 }
2518 #endif
2519
2520 static void
2521 mlx5e_set_rx_mode(struct ifnet *ifp)
2522 {
2523         struct mlx5e_priv *priv = ifp->if_softc;
2524
2525         schedule_work(&priv->set_rx_mode_work);
2526 }
2527
2528 static int
2529 mlx5e_ioctl(struct ifnet *ifp, u_long command, caddr_t data)
2530 {
2531         struct mlx5e_priv *priv;
2532         struct ifreq *ifr;
2533         struct ifi2creq i2c;
2534         int error = 0;
2535         int mask = 0;
2536         int size_read = 0;
2537         int module_num;
2538         int max_mtu;
2539         uint8_t read_addr;
2540
2541         priv = ifp->if_softc;
2542
2543         /* check if detaching */
2544         if (priv == NULL || priv->gone != 0)
2545                 return (ENXIO);
2546
2547         switch (command) {
2548         case SIOCSIFMTU:
2549                 ifr = (struct ifreq *)data;
2550
2551                 PRIV_LOCK(priv);
2552                 mlx5_query_port_max_mtu(priv->mdev, &max_mtu);
2553
2554                 if (ifr->ifr_mtu >= MLX5E_MTU_MIN &&
2555                     ifr->ifr_mtu <= MIN(MLX5E_MTU_MAX, max_mtu)) {
2556                         int was_opened;
2557
2558                         was_opened = test_bit(MLX5E_STATE_OPENED, &priv->state);
2559                         if (was_opened)
2560                                 mlx5e_close_locked(ifp);
2561
2562                         /* set new MTU */
2563                         mlx5e_set_dev_port_mtu(ifp, ifr->ifr_mtu);
2564
2565                         if (was_opened)
2566                                 mlx5e_open_locked(ifp);
2567                 } else {
2568                         error = EINVAL;
2569                         if_printf(ifp, "Invalid MTU value. Min val: %d, Max val: %d\n",
2570                             MLX5E_MTU_MIN, MIN(MLX5E_MTU_MAX, max_mtu));
2571                 }
2572                 PRIV_UNLOCK(priv);
2573                 break;
2574         case SIOCSIFFLAGS:
2575                 if ((ifp->if_flags & IFF_UP) &&
2576                     (ifp->if_drv_flags & IFF_DRV_RUNNING)) {
2577                         mlx5e_set_rx_mode(ifp);
2578                         break;
2579                 }
2580                 PRIV_LOCK(priv);
2581                 if (ifp->if_flags & IFF_UP) {
2582                         if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) {
2583                                 if (test_bit(MLX5E_STATE_OPENED, &priv->state) == 0)
2584                                         mlx5e_open_locked(ifp);
2585                                 ifp->if_drv_flags |= IFF_DRV_RUNNING;
2586                                 mlx5_set_port_status(priv->mdev, MLX5_PORT_UP);
2587                         }
2588                 } else {
2589                         if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
2590                                 mlx5_set_port_status(priv->mdev,
2591                                     MLX5_PORT_DOWN);
2592                                 if (test_bit(MLX5E_STATE_OPENED, &priv->state) != 0)
2593                                         mlx5e_close_locked(ifp);
2594                                 mlx5e_update_carrier(priv);
2595                                 ifp->if_drv_flags &= ~IFF_DRV_RUNNING;
2596                         }
2597                 }
2598                 PRIV_UNLOCK(priv);
2599                 break;
2600         case SIOCADDMULTI:
2601         case SIOCDELMULTI:
2602                 mlx5e_set_rx_mode(ifp);
2603                 break;
2604         case SIOCSIFMEDIA:
2605         case SIOCGIFMEDIA:
2606         case SIOCGIFXMEDIA:
2607                 ifr = (struct ifreq *)data;
2608                 error = ifmedia_ioctl(ifp, ifr, &priv->media, command);
2609                 break;
2610         case SIOCSIFCAP:
2611                 ifr = (struct ifreq *)data;
2612                 PRIV_LOCK(priv);
2613                 mask = ifr->ifr_reqcap ^ ifp->if_capenable;
2614
2615                 if (mask & IFCAP_TXCSUM) {
2616                         ifp->if_capenable ^= IFCAP_TXCSUM;
2617                         ifp->if_hwassist ^= (CSUM_TCP | CSUM_UDP | CSUM_IP);
2618
2619                         if (IFCAP_TSO4 & ifp->if_capenable &&
2620                             !(IFCAP_TXCSUM & ifp->if_capenable)) {
2621                                 ifp->if_capenable &= ~IFCAP_TSO4;
2622                                 ifp->if_hwassist &= ~CSUM_IP_TSO;
2623                                 if_printf(ifp,
2624                                     "tso4 disabled due to -txcsum.\n");
2625                         }
2626                 }
2627                 if (mask & IFCAP_TXCSUM_IPV6) {
2628                         ifp->if_capenable ^= IFCAP_TXCSUM_IPV6;
2629                         ifp->if_hwassist ^= (CSUM_UDP_IPV6 | CSUM_TCP_IPV6);
2630
2631                         if (IFCAP_TSO6 & ifp->if_capenable &&
2632                             !(IFCAP_TXCSUM_IPV6 & ifp->if_capenable)) {
2633                                 ifp->if_capenable &= ~IFCAP_TSO6;
2634                                 ifp->if_hwassist &= ~CSUM_IP6_TSO;
2635                                 if_printf(ifp,
2636                                     "tso6 disabled due to -txcsum6.\n");
2637                         }
2638                 }
2639                 if (mask & IFCAP_RXCSUM)
2640                         ifp->if_capenable ^= IFCAP_RXCSUM;
2641                 if (mask & IFCAP_RXCSUM_IPV6)
2642                         ifp->if_capenable ^= IFCAP_RXCSUM_IPV6;
2643                 if (mask & IFCAP_TSO4) {
2644                         if (!(IFCAP_TSO4 & ifp->if_capenable) &&
2645                             !(IFCAP_TXCSUM & ifp->if_capenable)) {
2646                                 if_printf(ifp, "enable txcsum first.\n");
2647                                 error = EAGAIN;
2648                                 goto out;
2649                         }
2650                         ifp->if_capenable ^= IFCAP_TSO4;
2651                         ifp->if_hwassist ^= CSUM_IP_TSO;
2652                 }
2653                 if (mask & IFCAP_TSO6) {
2654                         if (!(IFCAP_TSO6 & ifp->if_capenable) &&
2655                             !(IFCAP_TXCSUM_IPV6 & ifp->if_capenable)) {
2656                                 if_printf(ifp, "enable txcsum6 first.\n");
2657                                 error = EAGAIN;
2658                                 goto out;
2659                         }
2660                         ifp->if_capenable ^= IFCAP_TSO6;
2661                         ifp->if_hwassist ^= CSUM_IP6_TSO;
2662                 }
2663                 if (mask & IFCAP_VLAN_HWFILTER) {
2664                         if (ifp->if_capenable & IFCAP_VLAN_HWFILTER)
2665                                 mlx5e_disable_vlan_filter(priv);
2666                         else
2667                                 mlx5e_enable_vlan_filter(priv);
2668
2669                         ifp->if_capenable ^= IFCAP_VLAN_HWFILTER;
2670                 }
2671                 if (mask & IFCAP_VLAN_HWTAGGING)
2672                         ifp->if_capenable ^= IFCAP_VLAN_HWTAGGING;
2673                 if (mask & IFCAP_WOL_MAGIC)
2674                         ifp->if_capenable ^= IFCAP_WOL_MAGIC;
2675
2676                 VLAN_CAPABILITIES(ifp);
2677                 /* turn off LRO means also turn of HW LRO - if it's on */
2678                 if (mask & IFCAP_LRO) {
2679                         int was_opened = test_bit(MLX5E_STATE_OPENED, &priv->state);
2680                         bool need_restart = false;
2681
2682                         ifp->if_capenable ^= IFCAP_LRO;
2683                         if (!(ifp->if_capenable & IFCAP_LRO)) {
2684                                 if (priv->params.hw_lro_en) {
2685                                         priv->params.hw_lro_en = false;
2686                                         need_restart = true;
2687                                         /* Not sure this is the correct way */
2688                                         priv->params_ethtool.hw_lro = priv->params.hw_lro_en;
2689                                 }
2690                         }
2691                         if (was_opened && need_restart) {
2692                                 mlx5e_close_locked(ifp);
2693                                 mlx5e_open_locked(ifp);
2694                         }
2695                 }
2696 out:
2697                 PRIV_UNLOCK(priv);
2698                 break;
2699
2700         case SIOCGI2C:
2701                 ifr = (struct ifreq *)data;
2702
2703                 /*
2704                  * Copy from the user-space address ifr_data to the
2705                  * kernel-space address i2c
2706                  */
2707                 error = copyin(ifr->ifr_data, &i2c, sizeof(i2c));
2708                 if (error)
2709                         break;
2710
2711                 if (i2c.len > sizeof(i2c.data)) {
2712                         error = EINVAL;
2713                         break;
2714                 }
2715
2716                 PRIV_LOCK(priv);
2717                 /* Get module_num which is required for the query_eeprom */
2718                 error = mlx5_query_module_num(priv->mdev, &module_num);
2719                 if (error) {
2720                         if_printf(ifp, "Query module num failed, eeprom "
2721                             "reading is not supported\n");
2722                         error = EINVAL;
2723                         goto err_i2c;
2724                 }
2725                 /* Check if module is present before doing an access */
2726                 if (mlx5_query_module_status(priv->mdev, module_num) !=
2727                     MLX5_MODULE_STATUS_PLUGGED) {
2728                         error = EINVAL;
2729                         goto err_i2c;
2730                 }
2731                 /*
2732                  * Currently 0XA0 and 0xA2 are the only addresses permitted.
2733                  * The internal conversion is as follows:
2734                  */
2735                 if (i2c.dev_addr == 0xA0)
2736                         read_addr = MLX5E_I2C_ADDR_LOW;
2737                 else if (i2c.dev_addr == 0xA2)
2738                         read_addr = MLX5E_I2C_ADDR_HIGH;
2739                 else {
2740                         if_printf(ifp, "Query eeprom failed, "
2741                             "Invalid Address: %X\n", i2c.dev_addr);
2742                         error = EINVAL;
2743                         goto err_i2c;
2744                 }
2745                 error = mlx5_query_eeprom(priv->mdev,
2746                     read_addr, MLX5E_EEPROM_LOW_PAGE,
2747                     (uint32_t)i2c.offset, (uint32_t)i2c.len, module_num,
2748                     (uint32_t *)i2c.data, &size_read);
2749                 if (error) {
2750                         if_printf(ifp, "Query eeprom failed, eeprom "
2751                             "reading is not supported\n");
2752                         error = EINVAL;
2753                         goto err_i2c;
2754                 }
2755
2756                 if (i2c.len > MLX5_EEPROM_MAX_BYTES) {
2757                         error = mlx5_query_eeprom(priv->mdev,
2758                             read_addr, MLX5E_EEPROM_LOW_PAGE,
2759                             (uint32_t)(i2c.offset + size_read),
2760                             (uint32_t)(i2c.len - size_read), module_num,
2761                             (uint32_t *)(i2c.data + size_read), &size_read);
2762                 }
2763                 if (error) {
2764                         if_printf(ifp, "Query eeprom failed, eeprom "
2765                             "reading is not supported\n");
2766                         error = EINVAL;
2767                         goto err_i2c;
2768                 }
2769
2770                 error = copyout(&i2c, ifr->ifr_data, sizeof(i2c));
2771 err_i2c:
2772                 PRIV_UNLOCK(priv);
2773                 break;
2774
2775         default:
2776                 error = ether_ioctl(ifp, command, data);
2777                 break;
2778         }
2779         return (error);
2780 }
2781
2782 static int
2783 mlx5e_check_required_hca_cap(struct mlx5_core_dev *mdev)
2784 {
2785         /*
2786          * TODO: uncoment once FW really sets all these bits if
2787          * (!mdev->caps.eth.rss_ind_tbl_cap || !mdev->caps.eth.csum_cap ||
2788          * !mdev->caps.eth.max_lso_cap || !mdev->caps.eth.vlan_cap ||
2789          * !(mdev->caps.gen.flags & MLX5_DEV_CAP_FLAG_SCQE_BRK_MOD)) return
2790          * -ENOTSUPP;
2791          */
2792
2793         /* TODO: add more must-to-have features */
2794
2795         if (MLX5_CAP_GEN(mdev, port_type) != MLX5_CAP_PORT_TYPE_ETH)
2796                 return (-ENODEV);
2797
2798         return (0);
2799 }
2800
2801 static void
2802 mlx5e_build_ifp_priv(struct mlx5_core_dev *mdev,
2803     struct mlx5e_priv *priv,
2804     int num_comp_vectors)
2805 {
2806         /*
2807          * TODO: Consider link speed for setting "log_sq_size",
2808          * "log_rq_size" and "cq_moderation_xxx":
2809          */
2810         priv->params.log_sq_size =
2811             MLX5E_PARAMS_DEFAULT_LOG_SQ_SIZE;
2812         priv->params.log_rq_size =
2813             MLX5E_PARAMS_DEFAULT_LOG_RQ_SIZE;
2814         priv->params.rx_cq_moderation_usec =
2815             MLX5_CAP_GEN(mdev, cq_period_start_from_cqe) ?
2816             MLX5E_PARAMS_DEFAULT_RX_CQ_MODERATION_USEC_FROM_CQE :
2817             MLX5E_PARAMS_DEFAULT_RX_CQ_MODERATION_USEC;
2818         priv->params.rx_cq_moderation_mode =
2819             MLX5_CAP_GEN(mdev, cq_period_start_from_cqe) ? 1 : 0;
2820         priv->params.rx_cq_moderation_pkts =
2821             MLX5E_PARAMS_DEFAULT_RX_CQ_MODERATION_PKTS;
2822         priv->params.tx_cq_moderation_usec =
2823             MLX5E_PARAMS_DEFAULT_TX_CQ_MODERATION_USEC;
2824         priv->params.tx_cq_moderation_pkts =
2825             MLX5E_PARAMS_DEFAULT_TX_CQ_MODERATION_PKTS;
2826         priv->params.min_rx_wqes =
2827             MLX5E_PARAMS_DEFAULT_MIN_RX_WQES;
2828         priv->params.rx_hash_log_tbl_sz =
2829             (order_base_2(num_comp_vectors) >
2830             MLX5E_PARAMS_DEFAULT_RX_HASH_LOG_TBL_SZ) ?
2831             order_base_2(num_comp_vectors) :
2832             MLX5E_PARAMS_DEFAULT_RX_HASH_LOG_TBL_SZ;
2833         priv->params.num_tc = 1;
2834         priv->params.default_vlan_prio = 0;
2835         priv->counter_set_id = -1;
2836
2837         /*
2838          * hw lro is currently defaulted to off. when it won't anymore we
2839          * will consider the HW capability: "!!MLX5_CAP_ETH(mdev, lro_cap)"
2840          */
2841         priv->params.hw_lro_en = false;
2842         priv->params.lro_wqe_sz = MLX5E_PARAMS_DEFAULT_LRO_WQE_SZ;
2843
2844         priv->params.cqe_zipping_en = !!MLX5_CAP_GEN(mdev, cqe_compression);
2845
2846         priv->mdev = mdev;
2847         priv->params.num_channels = num_comp_vectors;
2848         priv->order_base_2_num_channels = order_base_2(num_comp_vectors);
2849         priv->queue_mapping_channel_mask =
2850             roundup_pow_of_two(num_comp_vectors) - 1;
2851         priv->num_tc = priv->params.num_tc;
2852         priv->default_vlan_prio = priv->params.default_vlan_prio;
2853
2854         INIT_WORK(&priv->update_stats_work, mlx5e_update_stats_work);
2855         INIT_WORK(&priv->update_carrier_work, mlx5e_update_carrier_work);
2856         INIT_WORK(&priv->set_rx_mode_work, mlx5e_set_rx_mode_work);
2857 }
2858
2859 static int
2860 mlx5e_create_mkey(struct mlx5e_priv *priv, u32 pdn,
2861     struct mlx5_core_mr *mr)
2862 {
2863         struct ifnet *ifp = priv->ifp;
2864         struct mlx5_core_dev *mdev = priv->mdev;
2865         struct mlx5_create_mkey_mbox_in *in;
2866         int err;
2867
2868         in = mlx5_vzalloc(sizeof(*in));
2869         if (in == NULL) {
2870                 if_printf(ifp, "%s: failed to allocate inbox\n", __func__);
2871                 return (-ENOMEM);
2872         }
2873         in->seg.flags = MLX5_PERM_LOCAL_WRITE |
2874             MLX5_PERM_LOCAL_READ |
2875             MLX5_ACCESS_MODE_PA;
2876         in->seg.flags_pd = cpu_to_be32(pdn | MLX5_MKEY_LEN64);
2877         in->seg.qpn_mkey7_0 = cpu_to_be32(0xffffff << 8);
2878
2879         err = mlx5_core_create_mkey(mdev, mr, in, sizeof(*in), NULL, NULL,
2880             NULL);
2881         if (err)
2882                 if_printf(ifp, "%s: mlx5_core_create_mkey failed, %d\n",
2883                     __func__, err);
2884
2885         kvfree(in);
2886
2887         return (err);
2888 }
2889
2890 static const char *mlx5e_vport_stats_desc[] = {
2891         MLX5E_VPORT_STATS(MLX5E_STATS_DESC)
2892 };
2893
2894 static const char *mlx5e_pport_stats_desc[] = {
2895         MLX5E_PPORT_STATS(MLX5E_STATS_DESC)
2896 };
2897
2898 static void
2899 mlx5e_priv_mtx_init(struct mlx5e_priv *priv)
2900 {
2901         mtx_init(&priv->async_events_mtx, "mlx5async", MTX_NETWORK_LOCK, MTX_DEF);
2902         sx_init(&priv->state_lock, "mlx5state");
2903         callout_init_mtx(&priv->watchdog, &priv->async_events_mtx, 0);
2904         MLX5_INIT_DOORBELL_LOCK(&priv->doorbell_lock);
2905 }
2906
2907 static void
2908 mlx5e_priv_mtx_destroy(struct mlx5e_priv *priv)
2909 {
2910         mtx_destroy(&priv->async_events_mtx);
2911         sx_destroy(&priv->state_lock);
2912 }
2913
2914 static int
2915 sysctl_firmware(SYSCTL_HANDLER_ARGS)
2916 {
2917         /*
2918          * %d.%d%.d the string format.
2919          * fw_rev_{maj,min,sub} return u16, 2^16 = 65536.
2920          * We need at most 5 chars to store that.
2921          * It also has: two "." and NULL at the end, which means we need 18
2922          * (5*3 + 3) chars at most.
2923          */
2924         char fw[18];
2925         struct mlx5e_priv *priv = arg1;
2926         int error;
2927
2928         snprintf(fw, sizeof(fw), "%d.%d.%d", fw_rev_maj(priv->mdev), fw_rev_min(priv->mdev),
2929             fw_rev_sub(priv->mdev));
2930         error = sysctl_handle_string(oidp, fw, sizeof(fw), req);
2931         return (error);
2932 }
2933
2934 static void
2935 mlx5e_disable_tx_dma(struct mlx5e_channel *ch)
2936 {
2937         int i;
2938
2939         for (i = 0; i < ch->num_tc; i++)
2940                 mlx5e_drain_sq(&ch->sq[i]);
2941 }
2942
2943 static void
2944 mlx5e_reset_sq_doorbell_record(struct mlx5e_sq *sq)
2945 {
2946
2947         sq->doorbell.d32[0] = cpu_to_be32(MLX5_OPCODE_NOP);
2948         sq->doorbell.d32[1] = cpu_to_be32(sq->sqn << 8);
2949         mlx5e_tx_notify_hw(sq, sq->doorbell.d32, 0);
2950         sq->doorbell.d64 = 0;
2951 }
2952
2953 void
2954 mlx5e_resume_sq(struct mlx5e_sq *sq)
2955 {
2956         int err;
2957
2958         /* check if already enabled */
2959         if (sq->stopped == 0)
2960                 return;
2961
2962         err = mlx5e_modify_sq(sq, MLX5_SQC_STATE_ERR,
2963             MLX5_SQC_STATE_RST);
2964         if (err != 0) {
2965                 if_printf(sq->ifp,
2966                     "mlx5e_modify_sq() from ERR to RST failed: %d\n", err);
2967         }
2968
2969         sq->cc = 0;
2970         sq->pc = 0;
2971
2972         /* reset doorbell prior to moving from RST to RDY */
2973         mlx5e_reset_sq_doorbell_record(sq);
2974
2975         err = mlx5e_modify_sq(sq, MLX5_SQC_STATE_RST,
2976             MLX5_SQC_STATE_RDY);
2977         if (err != 0) {
2978                 if_printf(sq->ifp,
2979                     "mlx5e_modify_sq() from RST to RDY failed: %d\n", err);
2980         }
2981
2982         mtx_lock(&sq->lock);
2983         sq->cev_next_state = MLX5E_CEV_STATE_INITIAL;
2984         sq->stopped = 0;
2985         mtx_unlock(&sq->lock);
2986
2987 }
2988
2989 static void
2990 mlx5e_enable_tx_dma(struct mlx5e_channel *ch)
2991 {
2992         int i;
2993
2994         for (i = 0; i < ch->num_tc; i++)
2995                 mlx5e_resume_sq(&ch->sq[i]);
2996 }
2997
2998 static void
2999 mlx5e_disable_rx_dma(struct mlx5e_channel *ch)
3000 {
3001         struct mlx5e_rq *rq = &ch->rq;
3002         int err;
3003
3004         mtx_lock(&rq->mtx);
3005         rq->enabled = 0;
3006         callout_stop(&rq->watchdog);
3007         mtx_unlock(&rq->mtx);
3008
3009         callout_drain(&rq->watchdog);
3010
3011         err = mlx5e_modify_rq(rq, MLX5_RQC_STATE_RDY, MLX5_RQC_STATE_ERR);
3012         if (err != 0) {
3013                 if_printf(rq->ifp,
3014                     "mlx5e_modify_rq() from RDY to RST failed: %d\n", err);
3015         }
3016
3017         while (!mlx5_wq_ll_is_empty(&rq->wq)) {
3018                 msleep(1);
3019                 rq->cq.mcq.comp(&rq->cq.mcq);
3020         }
3021
3022         /*
3023          * Transitioning into RST state will allow the FW to track less ERR state queues,
3024          * thus reducing the recv queue flushing time
3025          */
3026         err = mlx5e_modify_rq(rq, MLX5_RQC_STATE_ERR, MLX5_RQC_STATE_RST);
3027         if (err != 0) {
3028                 if_printf(rq->ifp,
3029                     "mlx5e_modify_rq() from ERR to RST failed: %d\n", err);
3030         }
3031 }
3032
3033 static void
3034 mlx5e_enable_rx_dma(struct mlx5e_channel *ch)
3035 {
3036         struct mlx5e_rq *rq = &ch->rq;
3037         int err;
3038
3039         rq->wq.wqe_ctr = 0;
3040         mlx5_wq_ll_update_db_record(&rq->wq);
3041         err = mlx5e_modify_rq(rq, MLX5_RQC_STATE_RST, MLX5_RQC_STATE_RDY);
3042         if (err != 0) {
3043                 if_printf(rq->ifp,
3044                     "mlx5e_modify_rq() from RST to RDY failed: %d\n", err);
3045         }
3046
3047         rq->enabled = 1;
3048
3049         rq->cq.mcq.comp(&rq->cq.mcq);
3050 }
3051
3052 void
3053 mlx5e_modify_tx_dma(struct mlx5e_priv *priv, uint8_t value)
3054 {
3055         int i;
3056
3057         if (priv->channel == NULL)
3058                 return;
3059
3060         for (i = 0; i < priv->params.num_channels; i++) {
3061
3062                 if (!priv->channel[i])
3063                         continue;
3064
3065                 if (value)
3066                         mlx5e_disable_tx_dma(priv->channel[i]);
3067                 else
3068                         mlx5e_enable_tx_dma(priv->channel[i]);
3069         }
3070 }
3071
3072 void
3073 mlx5e_modify_rx_dma(struct mlx5e_priv *priv, uint8_t value)
3074 {
3075         int i;
3076
3077         if (priv->channel == NULL)
3078                 return;
3079
3080         for (i = 0; i < priv->params.num_channels; i++) {
3081
3082                 if (!priv->channel[i])
3083                         continue;
3084
3085                 if (value)
3086                         mlx5e_disable_rx_dma(priv->channel[i]);
3087                 else
3088                         mlx5e_enable_rx_dma(priv->channel[i]);
3089         }
3090 }
3091
3092 static void
3093 mlx5e_add_hw_stats(struct mlx5e_priv *priv)
3094 {
3095         SYSCTL_ADD_PROC(&priv->sysctl_ctx, SYSCTL_CHILDREN(priv->sysctl_hw),
3096             OID_AUTO, "fw_version", CTLTYPE_STRING | CTLFLAG_RD, priv, 0,
3097             sysctl_firmware, "A", "HCA firmware version");
3098
3099         SYSCTL_ADD_STRING(&priv->sysctl_ctx, SYSCTL_CHILDREN(priv->sysctl_hw),
3100             OID_AUTO, "board_id", CTLFLAG_RD, priv->mdev->board_id, 0,
3101             "Board ID");
3102 }
3103
3104 static void
3105 mlx5e_setup_pauseframes(struct mlx5e_priv *priv)
3106 {
3107 #if (__FreeBSD_version < 1100000)
3108         char path[64];
3109
3110 #endif
3111         /* Only receiving pauseframes is enabled by default */
3112         priv->params.tx_pauseframe_control = 0;
3113         priv->params.rx_pauseframe_control = 1;
3114
3115 #if (__FreeBSD_version < 1100000)
3116         /* compute path for sysctl */
3117         snprintf(path, sizeof(path), "dev.mce.%d.tx_pauseframe_control",
3118             device_get_unit(priv->mdev->pdev->dev.bsddev));
3119
3120         /* try to fetch tunable, if any */
3121         TUNABLE_INT_FETCH(path, &priv->params.tx_pauseframe_control);
3122
3123         /* compute path for sysctl */
3124         snprintf(path, sizeof(path), "dev.mce.%d.rx_pauseframe_control",
3125             device_get_unit(priv->mdev->pdev->dev.bsddev));
3126
3127         /* try to fetch tunable, if any */
3128         TUNABLE_INT_FETCH(path, &priv->params.rx_pauseframe_control);
3129 #endif
3130
3131         /* register pausframe SYSCTLs */
3132         SYSCTL_ADD_INT(&priv->sysctl_ctx, SYSCTL_CHILDREN(priv->sysctl_ifnet),
3133             OID_AUTO, "tx_pauseframe_control", CTLFLAG_RDTUN,
3134             &priv->params.tx_pauseframe_control, 0,
3135             "Set to enable TX pause frames. Clear to disable.");
3136
3137         SYSCTL_ADD_INT(&priv->sysctl_ctx, SYSCTL_CHILDREN(priv->sysctl_ifnet),
3138             OID_AUTO, "rx_pauseframe_control", CTLFLAG_RDTUN,
3139             &priv->params.rx_pauseframe_control, 0,
3140             "Set to enable RX pause frames. Clear to disable.");
3141
3142         /* range check */
3143         priv->params.tx_pauseframe_control =
3144             priv->params.tx_pauseframe_control ? 1 : 0;
3145         priv->params.rx_pauseframe_control =
3146             priv->params.rx_pauseframe_control ? 1 : 0;
3147
3148         /* update firmware */
3149         mlx5_set_port_pause(priv->mdev, 1,
3150             priv->params.rx_pauseframe_control,
3151             priv->params.tx_pauseframe_control);
3152 }
3153
3154 static void *
3155 mlx5e_create_ifp(struct mlx5_core_dev *mdev)
3156 {
3157         static volatile int mlx5_en_unit;
3158         struct ifnet *ifp;
3159         struct mlx5e_priv *priv;
3160         u8 dev_addr[ETHER_ADDR_LEN] __aligned(4);
3161         struct sysctl_oid_list *child;
3162         int ncv = mdev->priv.eq_table.num_comp_vectors;
3163         char unit[16];
3164         int err;
3165         int i;
3166         u32 eth_proto_cap;
3167
3168         if (mlx5e_check_required_hca_cap(mdev)) {
3169                 mlx5_core_dbg(mdev, "mlx5e_check_required_hca_cap() failed\n");
3170                 return (NULL);
3171         }
3172         priv = malloc(sizeof(*priv), M_MLX5EN, M_WAITOK | M_ZERO);
3173         mlx5e_priv_mtx_init(priv);
3174
3175         ifp = priv->ifp = if_alloc(IFT_ETHER);
3176         if (ifp == NULL) {
3177                 mlx5_core_err(mdev, "if_alloc() failed\n");
3178                 goto err_free_priv;
3179         }
3180         ifp->if_softc = priv;
3181         if_initname(ifp, "mce", atomic_fetchadd_int(&mlx5_en_unit, 1));
3182         ifp->if_mtu = ETHERMTU;
3183         ifp->if_init = mlx5e_open;
3184         ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
3185         ifp->if_ioctl = mlx5e_ioctl;
3186         ifp->if_transmit = mlx5e_xmit;
3187         ifp->if_qflush = if_qflush;
3188 #if (__FreeBSD_version >= 1100000)
3189         ifp->if_get_counter = mlx5e_get_counter;
3190 #endif
3191         ifp->if_snd.ifq_maxlen = ifqmaxlen;
3192         /*
3193          * Set driver features
3194          */
3195         ifp->if_capabilities |= IFCAP_HWCSUM | IFCAP_HWCSUM_IPV6;
3196         ifp->if_capabilities |= IFCAP_VLAN_MTU | IFCAP_VLAN_HWTAGGING;
3197         ifp->if_capabilities |= IFCAP_VLAN_HWCSUM | IFCAP_VLAN_HWFILTER;
3198         ifp->if_capabilities |= IFCAP_LINKSTATE | IFCAP_JUMBO_MTU;
3199         ifp->if_capabilities |= IFCAP_LRO;
3200         ifp->if_capabilities |= IFCAP_TSO | IFCAP_VLAN_HWTSO;
3201         ifp->if_capabilities |= IFCAP_HWSTATS;
3202
3203         /* set TSO limits so that we don't have to drop TX packets */
3204         ifp->if_hw_tsomax = MLX5E_MAX_TX_PAYLOAD_SIZE - (ETHER_HDR_LEN + ETHER_VLAN_ENCAP_LEN);
3205         ifp->if_hw_tsomaxsegcount = MLX5E_MAX_TX_MBUF_FRAGS - 1 /* hdr */;
3206         ifp->if_hw_tsomaxsegsize = MLX5E_MAX_TX_MBUF_SIZE;
3207
3208         ifp->if_capenable = ifp->if_capabilities;
3209         ifp->if_hwassist = 0;
3210         if (ifp->if_capenable & IFCAP_TSO)
3211                 ifp->if_hwassist |= CSUM_TSO;
3212         if (ifp->if_capenable & IFCAP_TXCSUM)
3213                 ifp->if_hwassist |= (CSUM_TCP | CSUM_UDP | CSUM_IP);
3214         if (ifp->if_capenable & IFCAP_TXCSUM_IPV6)
3215                 ifp->if_hwassist |= (CSUM_UDP_IPV6 | CSUM_TCP_IPV6);
3216
3217         /* ifnet sysctl tree */
3218         sysctl_ctx_init(&priv->sysctl_ctx);
3219         priv->sysctl_ifnet = SYSCTL_ADD_NODE(&priv->sysctl_ctx, SYSCTL_STATIC_CHILDREN(_dev),
3220             OID_AUTO, ifp->if_dname, CTLFLAG_RD, 0, "MLX5 ethernet - interface name");
3221         if (priv->sysctl_ifnet == NULL) {
3222                 mlx5_core_err(mdev, "SYSCTL_ADD_NODE() failed\n");
3223                 goto err_free_sysctl;
3224         }
3225         snprintf(unit, sizeof(unit), "%d", ifp->if_dunit);
3226         priv->sysctl_ifnet = SYSCTL_ADD_NODE(&priv->sysctl_ctx, SYSCTL_CHILDREN(priv->sysctl_ifnet),
3227             OID_AUTO, unit, CTLFLAG_RD, 0, "MLX5 ethernet - interface unit");
3228         if (priv->sysctl_ifnet == NULL) {
3229                 mlx5_core_err(mdev, "SYSCTL_ADD_NODE() failed\n");
3230                 goto err_free_sysctl;
3231         }
3232
3233         /* HW sysctl tree */
3234         child = SYSCTL_CHILDREN(device_get_sysctl_tree(mdev->pdev->dev.bsddev));
3235         priv->sysctl_hw = SYSCTL_ADD_NODE(&priv->sysctl_ctx, child,
3236             OID_AUTO, "hw", CTLFLAG_RD, 0, "MLX5 ethernet dev hw");
3237         if (priv->sysctl_hw == NULL) {
3238                 mlx5_core_err(mdev, "SYSCTL_ADD_NODE() failed\n");
3239                 goto err_free_sysctl;
3240         }
3241         mlx5e_build_ifp_priv(mdev, priv, ncv);
3242         err = mlx5_alloc_map_uar(mdev, &priv->cq_uar);
3243         if (err) {
3244                 if_printf(ifp, "%s: mlx5_alloc_map_uar failed, %d\n",
3245                     __func__, err);
3246                 goto err_free_sysctl;
3247         }
3248         err = mlx5_core_alloc_pd(mdev, &priv->pdn);
3249         if (err) {
3250                 if_printf(ifp, "%s: mlx5_core_alloc_pd failed, %d\n",
3251                     __func__, err);
3252                 goto err_unmap_free_uar;
3253         }
3254         err = mlx5_alloc_transport_domain(mdev, &priv->tdn);
3255         if (err) {
3256                 if_printf(ifp, "%s: mlx5_alloc_transport_domain failed, %d\n",
3257                     __func__, err);
3258                 goto err_dealloc_pd;
3259         }
3260         err = mlx5e_create_mkey(priv, priv->pdn, &priv->mr);
3261         if (err) {
3262                 if_printf(ifp, "%s: mlx5e_create_mkey failed, %d\n",
3263                     __func__, err);
3264                 goto err_dealloc_transport_domain;
3265         }
3266         mlx5_query_nic_vport_mac_address(priv->mdev, 0, dev_addr);
3267
3268         /* check if we should generate a random MAC address */
3269         if (MLX5_CAP_GEN(priv->mdev, vport_group_manager) == 0 &&
3270             is_zero_ether_addr(dev_addr)) {
3271                 random_ether_addr(dev_addr);
3272                 if_printf(ifp, "Assigned random MAC address\n");
3273         }
3274
3275         /* set default MTU */
3276         mlx5e_set_dev_port_mtu(ifp, ifp->if_mtu);
3277
3278         /* Set desc */
3279         device_set_desc(mdev->pdev->dev.bsddev, mlx5e_version);
3280
3281         /* Set default media status */
3282         priv->media_status_last = IFM_AVALID;
3283         priv->media_active_last = IFM_ETHER | IFM_AUTO |
3284             IFM_ETH_RXPAUSE | IFM_FDX;
3285
3286         /* setup default pauseframes configuration */
3287         mlx5e_setup_pauseframes(priv);
3288
3289         err = mlx5_query_port_proto_cap(mdev, &eth_proto_cap, MLX5_PTYS_EN);
3290         if (err) {
3291                 eth_proto_cap = 0;
3292                 if_printf(ifp, "%s: Query port media capability failed, %d\n",
3293                     __func__, err);
3294         }
3295
3296         /* Setup supported medias */
3297         ifmedia_init(&priv->media, IFM_IMASK | IFM_ETH_FMASK,
3298             mlx5e_media_change, mlx5e_media_status);
3299
3300         for (i = 0; i < MLX5E_LINK_MODES_NUMBER; ++i) {
3301                 if (mlx5e_mode_table[i].baudrate == 0)
3302                         continue;
3303                 if (MLX5E_PROT_MASK(i) & eth_proto_cap) {
3304                         ifmedia_add(&priv->media,
3305                             mlx5e_mode_table[i].subtype |
3306                             IFM_ETHER, 0, NULL);
3307                         ifmedia_add(&priv->media,
3308                             mlx5e_mode_table[i].subtype |
3309                             IFM_ETHER | IFM_FDX |
3310                             IFM_ETH_RXPAUSE | IFM_ETH_TXPAUSE, 0, NULL);
3311                 }
3312         }
3313
3314         ifmedia_add(&priv->media, IFM_ETHER | IFM_AUTO, 0, NULL);
3315         ifmedia_add(&priv->media, IFM_ETHER | IFM_AUTO | IFM_FDX |
3316             IFM_ETH_RXPAUSE | IFM_ETH_TXPAUSE, 0, NULL);
3317
3318         /* Set autoselect by default */
3319         ifmedia_set(&priv->media, IFM_ETHER | IFM_AUTO | IFM_FDX |
3320             IFM_ETH_RXPAUSE | IFM_ETH_TXPAUSE);
3321         ether_ifattach(ifp, dev_addr);
3322
3323         /* Register for VLAN events */
3324         priv->vlan_attach = EVENTHANDLER_REGISTER(vlan_config,
3325             mlx5e_vlan_rx_add_vid, priv, EVENTHANDLER_PRI_FIRST);
3326         priv->vlan_detach = EVENTHANDLER_REGISTER(vlan_unconfig,
3327             mlx5e_vlan_rx_kill_vid, priv, EVENTHANDLER_PRI_FIRST);
3328
3329         /* Link is down by default */
3330         if_link_state_change(ifp, LINK_STATE_DOWN);
3331
3332         mlx5e_enable_async_events(priv);
3333
3334         mlx5e_add_hw_stats(priv);
3335
3336         mlx5e_create_stats(&priv->stats.vport.ctx, SYSCTL_CHILDREN(priv->sysctl_ifnet),
3337             "vstats", mlx5e_vport_stats_desc, MLX5E_VPORT_STATS_NUM,
3338             priv->stats.vport.arg);
3339
3340         mlx5e_create_stats(&priv->stats.pport.ctx, SYSCTL_CHILDREN(priv->sysctl_ifnet),
3341             "pstats", mlx5e_pport_stats_desc, MLX5E_PPORT_STATS_NUM,
3342             priv->stats.pport.arg);
3343
3344         mlx5e_create_ethtool(priv);
3345
3346         mtx_lock(&priv->async_events_mtx);
3347         mlx5e_update_stats(priv);
3348         mtx_unlock(&priv->async_events_mtx);
3349
3350         return (priv);
3351
3352 err_dealloc_transport_domain:
3353         mlx5_dealloc_transport_domain(mdev, priv->tdn);
3354
3355 err_dealloc_pd:
3356         mlx5_core_dealloc_pd(mdev, priv->pdn);
3357
3358 err_unmap_free_uar:
3359         mlx5_unmap_free_uar(mdev, &priv->cq_uar);
3360
3361 err_free_sysctl:
3362         sysctl_ctx_free(&priv->sysctl_ctx);
3363
3364         if_free(ifp);
3365
3366 err_free_priv:
3367         mlx5e_priv_mtx_destroy(priv);
3368         free(priv, M_MLX5EN);
3369         return (NULL);
3370 }
3371
3372 static void
3373 mlx5e_destroy_ifp(struct mlx5_core_dev *mdev, void *vpriv)
3374 {
3375         struct mlx5e_priv *priv = vpriv;
3376         struct ifnet *ifp = priv->ifp;
3377
3378         /* don't allow more IOCTLs */
3379         priv->gone = 1;
3380
3381         /*
3382          * Clear the device description to avoid use after free,
3383          * because the bsddev is not destroyed when this module is
3384          * unloaded:
3385          */
3386         device_set_desc(mdev->pdev->dev.bsddev, NULL);
3387
3388         /* XXX wait a bit to allow IOCTL handlers to complete */
3389         pause("W", hz);
3390
3391         /* stop watchdog timer */
3392         callout_drain(&priv->watchdog);
3393
3394         if (priv->vlan_attach != NULL)
3395                 EVENTHANDLER_DEREGISTER(vlan_config, priv->vlan_attach);
3396         if (priv->vlan_detach != NULL)
3397                 EVENTHANDLER_DEREGISTER(vlan_unconfig, priv->vlan_detach);
3398
3399         /* make sure device gets closed */
3400         PRIV_LOCK(priv);
3401         mlx5e_close_locked(ifp);
3402         PRIV_UNLOCK(priv);
3403
3404         /* unregister device */
3405         ifmedia_removeall(&priv->media);
3406         ether_ifdetach(ifp);
3407         if_free(ifp);
3408
3409         /* destroy all remaining sysctl nodes */
3410         if (priv->sysctl_debug)
3411                 sysctl_ctx_free(&priv->stats.port_stats_debug.ctx);
3412         sysctl_ctx_free(&priv->stats.vport.ctx);
3413         sysctl_ctx_free(&priv->stats.pport.ctx);
3414         sysctl_ctx_free(&priv->sysctl_ctx);
3415
3416         mlx5_core_destroy_mkey(priv->mdev, &priv->mr);
3417         mlx5_dealloc_transport_domain(priv->mdev, priv->tdn);
3418         mlx5_core_dealloc_pd(priv->mdev, priv->pdn);
3419         mlx5_unmap_free_uar(priv->mdev, &priv->cq_uar);
3420         mlx5e_disable_async_events(priv);
3421         flush_scheduled_work();
3422         mlx5e_priv_mtx_destroy(priv);
3423         free(priv, M_MLX5EN);
3424 }
3425
3426 static void *
3427 mlx5e_get_ifp(void *vpriv)
3428 {
3429         struct mlx5e_priv *priv = vpriv;
3430
3431         return (priv->ifp);
3432 }
3433
3434 static struct mlx5_interface mlx5e_interface = {
3435         .add = mlx5e_create_ifp,
3436         .remove = mlx5e_destroy_ifp,
3437         .event = mlx5e_async_event,
3438         .protocol = MLX5_INTERFACE_PROTOCOL_ETH,
3439         .get_dev = mlx5e_get_ifp,
3440 };
3441
3442 void
3443 mlx5e_init(void)
3444 {
3445         mlx5_register_interface(&mlx5e_interface);
3446 }
3447
3448 void
3449 mlx5e_cleanup(void)
3450 {
3451         mlx5_unregister_interface(&mlx5e_interface);
3452 }
3453
3454 module_init_order(mlx5e_init, SI_ORDER_THIRD);
3455 module_exit_order(mlx5e_cleanup, SI_ORDER_THIRD);
3456
3457 #if (__FreeBSD_version >= 1100000)
3458 MODULE_DEPEND(mlx5en, linuxkpi, 1, 1, 1);
3459 #endif
3460 MODULE_DEPEND(mlx5en, mlx5, 1, 1, 1);
3461 MODULE_VERSION(mlx5en, 1);