drivers/net/bnxt/bnxt_rxq.c

   1 /*-
   2  *   BSD LICENSE
   3  *
   4  *   Copyright(c) Broadcom Limited.
   5  *   All rights reserved.
   6  *
   7  *   Redistribution and use in source and binary forms, with or without
   8  *   modification, are permitted provided that the following conditions
   9  *   are met:
  10  *
  11  *     * Redistributions of source code must retain the above copyright
  12  *       notice, this list of conditions and the following disclaimer.
  13  *     * Redistributions in binary form must reproduce the above copyright
  14  *       notice, this list of conditions and the following disclaimer in
  15  *       the documentation and/or other materials provided with the
  16  *       distribution.
  17  *     * Neither the name of Broadcom Corporation nor the names of its
  18  *       contributors may be used to endorse or promote products derived
  19  *       from this software without specific prior written permission.
  20  *
  21  *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  22  *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  23  *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  24  *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  25  *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  26  *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  27  *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  28  *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  29  *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  30  *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  31  *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  32  */
  33
  34 #include <inttypes.h>
  35
  36 #include <rte_malloc.h>
  37
  38 #include "bnxt.h"
  39 #include "bnxt_cpr.h"
  40 #include "bnxt_filter.h"
  41 #include "bnxt_hwrm.h"
  42 #include "bnxt_ring.h"
  43 #include "bnxt_rxq.h"
  44 #include "bnxt_rxr.h"
  45 #include "bnxt_vnic.h"
  46 #include "hsi_struct_def_dpdk.h"
  47
  48 /*
  49  * RX Queues
  50  */
  51
  52 void bnxt_free_rxq_stats(struct bnxt_rx_queue *rxq)
  53 {
  54         struct bnxt_cp_ring_info *cpr = rxq->cp_ring;
  55
  56         if (cpr->hw_stats)
  57                 cpr->hw_stats = NULL;
  58 }
  59
  60 int bnxt_mq_rx_configure(struct bnxt *bp)
  61 {
  62         struct rte_eth_conf *dev_conf = &bp->eth_dev->data->dev_conf;
  63         const struct rte_eth_vmdq_rx_conf *conf =
  64                     &dev_conf->rx_adv_conf.vmdq_rx_conf;
  65         unsigned int i, j, nb_q_per_grp = 1, ring_idx = 0;
  66         int start_grp_id, end_grp_id = 1, rc = 0;
  67         struct bnxt_vnic_info *vnic;
  68         struct bnxt_filter_info *filter;
  69         enum rte_eth_nb_pools pools = bp->rx_cp_nr_rings, max_pools = 0;
  70         struct bnxt_rx_queue *rxq;
  71         bool rss_dflt_cr = false;
  72
  73         bp->nr_vnics = 0;
  74
  75         /* Single queue mode */
  76         if (bp->rx_cp_nr_rings < 2) {
  77                 vnic = bnxt_alloc_vnic(bp);
  78                 if (!vnic) {
  79                         RTE_LOG(ERR, PMD, "VNIC alloc failed\n");
  80                         rc = -ENOMEM;
  81                         goto err_out;
  82                 }
  83                 vnic->flags |= BNXT_VNIC_INFO_BCAST;
  84                 STAILQ_INSERT_TAIL(&bp->ff_pool[0], vnic, next);
  85                 bp->nr_vnics++;
  86
  87                 rxq = bp->eth_dev->data->rx_queues[0];
  88                 rxq->vnic = vnic;
  89
  90                 vnic->func_default = true;
  91                 vnic->ff_pool_idx = 0;
  92                 vnic->start_grp_id = 0;
  93                 vnic->end_grp_id = vnic->start_grp_id;
  94                 filter = bnxt_alloc_filter(bp);
  95                 if (!filter) {
  96                         RTE_LOG(ERR, PMD, "L2 filter alloc failed\n");
  97                         rc = -ENOMEM;
  98                         goto err_out;
  99                 }
 100                 STAILQ_INSERT_TAIL(&vnic->filter, filter, next);
 101                 goto out;
 102         }
 103
 104         /* Multi-queue mode */
 105         if (dev_conf->rxmode.mq_mode & ETH_MQ_RX_VMDQ_DCB_RSS) {
 106                 /* VMDq ONLY, VMDq+RSS, VMDq+DCB, VMDq+DCB+RSS */
 107
 108                 switch (dev_conf->rxmode.mq_mode) {
 109                 case ETH_MQ_RX_VMDQ_RSS:
 110                 case ETH_MQ_RX_VMDQ_ONLY:
 111                         /* ETH_8/64_POOLs */
 112                         pools = conf->nb_queue_pools;
 113                         /* For each pool, allocate MACVLAN CFA rule & VNIC */
 114                         max_pools = RTE_MIN(bp->max_vnics,
 115                                             RTE_MIN(bp->max_l2_ctx,
 116                                             RTE_MIN(bp->max_rsscos_ctx,
 117                                                     ETH_64_POOLS)));
 118                         if (pools > max_pools)
 119                                 pools = max_pools;
 120                         break;
 121                 case ETH_MQ_RX_RSS:
 122                         pools = 1;
 123                         break;
 124                 default:
 125                         RTE_LOG(ERR, PMD, "Unsupported mq_mod %d\n",
 126                                 dev_conf->rxmode.mq_mode);
 127                         rc = -EINVAL;
 128                         goto err_out;
 129                 }
 130         }
 131         /*
 132          * If MQ RX w/o RSS no need for per VNIC filter.
 133          */
 134         if ((dev_conf->rxmode.mq_mode & ETH_MQ_RX_VMDQ_DCB) ||
 135             (bp->rx_cp_nr_rings &&
 136              !(dev_conf->rxmode.mq_mode & ETH_MQ_RX_RSS)))
 137                 rss_dflt_cr = true;
 138
 139         nb_q_per_grp = bp->rx_cp_nr_rings / pools;
 140         start_grp_id = 0;
 141         end_grp_id = nb_q_per_grp;
 142
 143         for (i = 0; i < pools; i++) {
 144                 vnic = bnxt_alloc_vnic(bp);
 145                 if (!vnic) {
 146                         RTE_LOG(ERR, PMD, "VNIC alloc failed\n");
 147                         rc = -ENOMEM;
 148                         goto err_out;
 149                 }
 150                 vnic->flags |= BNXT_VNIC_INFO_BCAST;
 151                 STAILQ_INSERT_TAIL(&bp->ff_pool[i], vnic, next);
 152                 bp->nr_vnics++;
 153
 154                 for (j = 0, ring_idx = 0; j < nb_q_per_grp; j++, ring_idx++) {
 155                         rxq = bp->eth_dev->data->rx_queues[ring_idx];
 156                         rxq->vnic = vnic;
 157                 }
 158                 if (i == 0) {
 159                         if (dev_conf->rxmode.mq_mode & ETH_MQ_RX_VMDQ_DCB) {
 160                                 bp->eth_dev->data->promiscuous = 1;
 161                                 vnic->flags |= BNXT_VNIC_INFO_PROMISC;
 162                         }
 163                         vnic->func_default = true;
 164                 }
 165                 vnic->ff_pool_idx = i;
 166                 vnic->start_grp_id = start_grp_id;
 167                 vnic->end_grp_id = end_grp_id;
 168
 169                 if (rss_dflt_cr && i) {
 170                         vnic->rss_dflt_cr = true;
 171                         goto skip_filter_allocation;
 172                 }
 173                 filter = bnxt_alloc_filter(bp);
 174                 if (!filter) {
 175                         RTE_LOG(ERR, PMD, "L2 filter alloc failed\n");
 176                         rc = -ENOMEM;
 177                         goto err_out;
 178                 }
 179                 for (j = 0; j < conf->nb_pool_maps; j++) {
 180                         if (conf->pool_map[j].pools & (1UL << i)) {
 181                                 RTE_LOG(ERR, PMD,
 182                                         "Add vlan %u to vmdq pool %u\n",
 183                                         conf->pool_map[j].vlan_id, i);
 184
 185                                 filter->l2_ivlan = conf->pool_map[j].vlan_id;
 186                                 filter->enables |=
 187                                 HWRM_CFA_L2_FILTER_ALLOC_INPUT_ENABLES_L2_OVLAN;
 188                         }
 189                 }
 190                 /*
 191                  * TODO: Configure & associate CFA rule for
 192                  * each VNIC for each VMDq with MACVLAN, MACVLAN+TC
 193                  */
 194                 STAILQ_INSERT_TAIL(&vnic->filter, filter, next);
 195
 196 skip_filter_allocation:
 197                 start_grp_id = end_grp_id;
 198                 end_grp_id += nb_q_per_grp;
 199         }
 200
 201 out:
 202         if (dev_conf->rxmode.mq_mode & ETH_MQ_RX_RSS_FLAG) {
 203                 struct rte_eth_rss_conf *rss = &dev_conf->rx_adv_conf.rss_conf;
 204                 uint16_t hash_type = 0;
 205
 206                 if (bp->flags & BNXT_FLAG_UPDATE_HASH) {
 207                         rss = &bp->rss_conf;
 208                         bp->flags &= ~BNXT_FLAG_UPDATE_HASH;
 209                 }
 210
 211                 if (rss->rss_hf & ETH_RSS_IPV4)
 212                         hash_type |= HWRM_VNIC_RSS_CFG_INPUT_HASH_TYPE_IPV4;
 213                 if (rss->rss_hf & ETH_RSS_NONFRAG_IPV4_TCP)
 214                         hash_type |= HWRM_VNIC_RSS_CFG_INPUT_HASH_TYPE_TCP_IPV4;
 215                 if (rss->rss_hf & ETH_RSS_NONFRAG_IPV4_UDP)
 216                         hash_type |= HWRM_VNIC_RSS_CFG_INPUT_HASH_TYPE_UDP_IPV4;
 217                 if (rss->rss_hf & ETH_RSS_IPV6)
 218                         hash_type |= HWRM_VNIC_RSS_CFG_INPUT_HASH_TYPE_IPV6;
 219                 if (rss->rss_hf & ETH_RSS_NONFRAG_IPV6_TCP)
 220                         hash_type |= HWRM_VNIC_RSS_CFG_INPUT_HASH_TYPE_TCP_IPV6;
 221                 if (rss->rss_hf & ETH_RSS_NONFRAG_IPV6_UDP)
 222                         hash_type |= HWRM_VNIC_RSS_CFG_INPUT_HASH_TYPE_UDP_IPV6;
 223
 224                 for (i = 0; i < bp->nr_vnics; i++) {
 225                         STAILQ_FOREACH(vnic, &bp->ff_pool[i], next) {
 226                         vnic->hash_type |= hash_type;
 227
 228                         /*
 229                          * Use the supplied key if the key length is
 230                          * acceptable and the rss_key is not NULL
 231                          */
 232                         if (rss->rss_key &&
 233                             rss->rss_key_len <= HW_HASH_KEY_SIZE)
 234                                 memcpy(vnic->rss_hash_key,
 235                                        rss->rss_key, rss->rss_key_len);
 236                         }
 237                 }
 238         }
 239
 240         return rc;
 241
 242 err_out:
 243         /* Free allocated vnic/filters */
 244
 245         return rc;
 246 }
 247
 248 static void bnxt_rx_queue_release_mbufs(struct bnxt_rx_queue *rxq)
 249 {
 250         struct bnxt_sw_rx_bd *sw_ring;
 251         struct bnxt_tpa_info *tpa_info;
 252         uint16_t i;
 253
 254         if (rxq) {
 255                 sw_ring = rxq->rx_ring->rx_buf_ring;
 256                 if (sw_ring) {
 257                         for (i = 0; i < rxq->nb_rx_desc; i++) {
 258                                 if (sw_ring[i].mbuf) {
 259                                         rte_pktmbuf_free_seg(sw_ring[i].mbuf);
 260                                         sw_ring[i].mbuf = NULL;
 261                                 }
 262                         }
 263                 }
 264                 /* Free up mbufs in Agg ring */
 265                 sw_ring = rxq->rx_ring->ag_buf_ring;
 266                 if (sw_ring) {
 267                         for (i = 0; i < rxq->nb_rx_desc; i++) {
 268                                 if (sw_ring[i].mbuf) {
 269                                         rte_pktmbuf_free_seg(sw_ring[i].mbuf);
 270                                         sw_ring[i].mbuf = NULL;
 271                                 }
 272                         }
 273                 }
 274
 275                 /* Free up mbufs in TPA */
 276                 tpa_info = rxq->rx_ring->tpa_info;
 277                 if (tpa_info) {
 278                         for (i = 0; i < BNXT_TPA_MAX; i++) {
 279                                 if (tpa_info[i].mbuf) {
 280                                         rte_pktmbuf_free_seg(tpa_info[i].mbuf);
 281                                         tpa_info[i].mbuf = NULL;
 282                                 }
 283                         }
 284                 }
 285         }
 286 }
 287
 288 void bnxt_free_rx_mbufs(struct bnxt *bp)
 289 {
 290         struct bnxt_rx_queue *rxq;
 291         int i;
 292
 293         for (i = 0; i < (int)bp->rx_nr_rings; i++) {
 294                 rxq = bp->rx_queues[i];
 295                 bnxt_rx_queue_release_mbufs(rxq);
 296         }
 297 }
 298
 299 void bnxt_rx_queue_release_op(void *rx_queue)
 300 {
 301         struct bnxt_rx_queue *rxq = (struct bnxt_rx_queue *)rx_queue;
 302
 303         if (rxq) {
 304                 bnxt_rx_queue_release_mbufs(rxq);
 305
 306                 /* Free RX ring hardware descriptors */
 307                 bnxt_free_ring(rxq->rx_ring->rx_ring_struct);
 308                 /* Free RX Agg ring hardware descriptors */
 309                 bnxt_free_ring(rxq->rx_ring->ag_ring_struct);
 310
 311                 /* Free RX completion ring hardware descriptors */
 312                 bnxt_free_ring(rxq->cp_ring->cp_ring_struct);
 313
 314                 bnxt_free_rxq_stats(rxq);
 315
 316                 rte_free(rxq);
 317         }
 318 }
 319
 320 int bnxt_rx_queue_setup_op(struct rte_eth_dev *eth_dev,
 321                                uint16_t queue_idx,
 322                                uint16_t nb_desc,
 323                                unsigned int socket_id,
 324                                const struct rte_eth_rxconf *rx_conf,
 325                                struct rte_mempool *mp)
 326 {
 327         struct bnxt *bp = (struct bnxt *)eth_dev->data->dev_private;
 328         struct bnxt_rx_queue *rxq;
 329         int rc = 0;
 330
 331         if (!nb_desc || nb_desc > MAX_RX_DESC_CNT) {
 332                 RTE_LOG(ERR, PMD, "nb_desc %d is invalid\n", nb_desc);
 333                 rc = -EINVAL;
 334                 goto out;
 335         }
 336
 337         if (eth_dev->data->rx_queues) {
 338                 rxq = eth_dev->data->rx_queues[queue_idx];
 339                 if (rxq)
 340                         bnxt_rx_queue_release_op(rxq);
 341         }
 342         rxq = rte_zmalloc_socket("bnxt_rx_queue", sizeof(struct bnxt_rx_queue),
 343                                  RTE_CACHE_LINE_SIZE, socket_id);
 344         if (!rxq) {
 345                 RTE_LOG(ERR, PMD, "bnxt_rx_queue allocation failed!\n");
 346                 rc = -ENOMEM;
 347                 goto out;
 348         }
 349         rxq->bp = bp;
 350         rxq->mb_pool = mp;
 351         rxq->nb_rx_desc = nb_desc;
 352         rxq->rx_free_thresh = rx_conf->rx_free_thresh;
 353
 354         RTE_LOG(DEBUG, PMD, "RX Buf size is %d\n", rxq->rx_buf_use_size);
 355         RTE_LOG(DEBUG, PMD, "RX Buf MTU %d\n", eth_dev->data->mtu);
 356
 357         rc = bnxt_init_rx_ring_struct(rxq, socket_id);
 358         if (rc)
 359                 goto out;
 360
 361         rxq->queue_id = queue_idx;
 362         rxq->port_id = eth_dev->data->port_id;
 363         rxq->crc_len = (uint8_t)((eth_dev->data->dev_conf.rxmode.hw_strip_crc) ?
 364                                 0 : ETHER_CRC_LEN);
 365
 366         eth_dev->data->rx_queues[queue_idx] = rxq;
 367         /* Allocate RX ring hardware descriptors */
 368         if (bnxt_alloc_rings(bp, queue_idx, NULL, rxq->rx_ring, rxq->cp_ring,
 369                         "rxr")) {
 370                 RTE_LOG(ERR, PMD,
 371                         "ring_dma_zone_reserve for rx_ring failed!\n");
 372                 bnxt_rx_queue_release_op(rxq);
 373                 rc = -ENOMEM;
 374                 goto out;
 375         }
 376
 377 out:
 378         return rc;
 379 }
 380
 381 int
 382 bnxt_rx_queue_intr_enable_op(struct rte_eth_dev *eth_dev, uint16_t queue_id)
 383 {
 384         struct bnxt_rx_queue *rxq;
 385         struct bnxt_cp_ring_info *cpr;
 386         int rc = 0;
 387
 388         if (eth_dev->data->rx_queues) {
 389                 rxq = eth_dev->data->rx_queues[queue_id];
 390                 if (!rxq) {
 391                         rc = -EINVAL;
 392                         return rc;
 393                 }
 394                 cpr = rxq->cp_ring;
 395                 B_CP_DB_ARM(cpr);
 396         }
 397         return rc;
 398 }
 399
 400 int
 401 bnxt_rx_queue_intr_disable_op(struct rte_eth_dev *eth_dev, uint16_t queue_id)
 402 {
 403         struct bnxt_rx_queue *rxq;
 404         struct bnxt_cp_ring_info *cpr;
 405         int rc = 0;
 406
 407         if (eth_dev->data->rx_queues) {
 408                 rxq = eth_dev->data->rx_queues[queue_id];
 409                 if (!rxq) {
 410                         rc = -EINVAL;
 411                         return rc;
 412                 }
 413                 cpr = rxq->cp_ring;
 414                 B_CP_DB_DISARM(cpr);
 415         }
 416         return rc;
 417 }