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         unsigned int i, j, nb_q_per_grp = 1, ring_idx = 0;
  64         int start_grp_id, end_grp_id = 1, rc = 0;
  65         struct bnxt_vnic_info *vnic;
  66         struct bnxt_filter_info *filter;
  67         enum rte_eth_nb_pools pools = bp->rx_cp_nr_rings, max_pools = 0;
  68         struct bnxt_rx_queue *rxq;
  69         bool rss_dflt_cr = false;
  70
  71         bp->nr_vnics = 0;
  72
  73         /* Single queue mode */
  74         if (bp->rx_cp_nr_rings < 2) {
  75                 vnic = bnxt_alloc_vnic(bp);
  76                 if (!vnic) {
  77                         RTE_LOG(ERR, PMD, "VNIC alloc failed\n");
  78                         rc = -ENOMEM;
  79                         goto err_out;
  80                 }
  81                 vnic->flags |= BNXT_VNIC_INFO_BCAST;
  82                 STAILQ_INSERT_TAIL(&bp->ff_pool[0], vnic, next);
  83                 bp->nr_vnics++;
  84
  85                 rxq = bp->eth_dev->data->rx_queues[0];
  86                 rxq->vnic = vnic;
  87
  88                 vnic->func_default = true;
  89                 vnic->ff_pool_idx = 0;
  90                 vnic->start_grp_id = 0;
  91                 vnic->end_grp_id = vnic->start_grp_id;
  92                 filter = bnxt_alloc_filter(bp);
  93                 if (!filter) {
  94                         RTE_LOG(ERR, PMD, "L2 filter alloc failed\n");
  95                         rc = -ENOMEM;
  96                         goto err_out;
  97                 }
  98                 STAILQ_INSERT_TAIL(&vnic->filter, filter, next);
  99                 goto out;
 100         }
 101
 102         /* Multi-queue mode */
 103         if (dev_conf->rxmode.mq_mode & ETH_MQ_RX_VMDQ_DCB_RSS) {
 104                 /* VMDq ONLY, VMDq+RSS, VMDq+DCB, VMDq+DCB+RSS */
 105                 const struct rte_eth_vmdq_rx_conf *conf =
 106                     &dev_conf->rx_adv_conf.vmdq_rx_conf;
 107
 108
 109                 switch (dev_conf->rxmode.mq_mode) {
 110                 case ETH_MQ_RX_VMDQ_RSS:
 111                 case ETH_MQ_RX_VMDQ_ONLY:
 112                         /* ETH_8/64_POOLs */
 113                         pools = conf->nb_queue_pools;
 114                         /* For each pool, allocate MACVLAN CFA rule & VNIC */
 115                         max_pools = RTE_MIN(bp->max_vnics,
 116                                             RTE_MIN(bp->max_l2_ctx,
 117                                             RTE_MIN(bp->max_rsscos_ctx,
 118                                                     ETH_64_POOLS)));
 119                         if (pools > max_pools)
 120                                 pools = max_pools;
 121                         break;
 122                 case ETH_MQ_RX_RSS:
 123                         pools = 1;
 124                         break;
 125                 default:
 126                         RTE_LOG(ERR, PMD, "Unsupported mq_mod %d\n",
 127                                 dev_conf->rxmode.mq_mode);
 128                         rc = -EINVAL;
 129                         goto err_out;
 130                 }
 131         }
 132         /*
 133          * If MQ RX w/o RSS no need for per VNIC filter.
 134          */
 135         if ((dev_conf->rxmode.mq_mode & ETH_MQ_RX_VMDQ_DCB) ||
 136             (bp->rx_cp_nr_rings &&
 137              !(dev_conf->rxmode.mq_mode & ETH_MQ_RX_RSS)))
 138                 rss_dflt_cr = true;
 139
 140         nb_q_per_grp = bp->rx_cp_nr_rings / pools;
 141         start_grp_id = 0;
 142         end_grp_id = nb_q_per_grp;
 143
 144         for (i = 0; i < pools; i++) {
 145                 vnic = bnxt_alloc_vnic(bp);
 146                 if (!vnic) {
 147                         RTE_LOG(ERR, PMD, "VNIC alloc failed\n");
 148                         rc = -ENOMEM;
 149                         goto err_out;
 150                 }
 151                 vnic->flags |= BNXT_VNIC_INFO_BCAST;
 152                 STAILQ_INSERT_TAIL(&bp->ff_pool[i], vnic, next);
 153                 bp->nr_vnics++;
 154
 155                 for (j = 0, ring_idx = 0; j < nb_q_per_grp; j++, ring_idx++) {
 156                         rxq = bp->eth_dev->data->rx_queues[ring_idx];
 157                         rxq->vnic = vnic;
 158                 }
 159                 if (i == 0)
 160                         vnic->func_default = true;
 161                 vnic->ff_pool_idx = i;
 162                 vnic->start_grp_id = start_grp_id;
 163                 vnic->end_grp_id = end_grp_id;
 164
 165                 if (rss_dflt_cr && i) {
 166                         vnic->rss_dflt_cr = true;
 167                         goto skip_filter_allocation;
 168                 }
 169                 filter = bnxt_alloc_filter(bp);
 170                 if (!filter) {
 171                         RTE_LOG(ERR, PMD, "L2 filter alloc failed\n");
 172                         rc = -ENOMEM;
 173                         goto err_out;
 174                 }
 175                 /*
 176                  * TODO: Configure & associate CFA rule for
 177                  * each VNIC for each VMDq with MACVLAN, MACVLAN+TC
 178                  */
 179                 STAILQ_INSERT_TAIL(&vnic->filter, filter, next);
 180
 181 skip_filter_allocation:
 182                 start_grp_id = end_grp_id;
 183                 end_grp_id += nb_q_per_grp;
 184         }
 185
 186 out:
 187         if (dev_conf->rxmode.mq_mode & ETH_MQ_RX_RSS_FLAG) {
 188                 struct rte_eth_rss_conf *rss = &dev_conf->rx_adv_conf.rss_conf;
 189                 uint16_t hash_type = 0;
 190
 191                 if (bp->flags & BNXT_FLAG_UPDATE_HASH) {
 192                         rss = &bp->rss_conf;
 193                         bp->flags &= ~BNXT_FLAG_UPDATE_HASH;
 194                 }
 195
 196                 if (rss->rss_hf & ETH_RSS_IPV4)
 197                         hash_type |= HWRM_VNIC_RSS_CFG_INPUT_HASH_TYPE_IPV4;
 198                 if (rss->rss_hf & ETH_RSS_NONFRAG_IPV4_TCP)
 199                         hash_type |= HWRM_VNIC_RSS_CFG_INPUT_HASH_TYPE_TCP_IPV4;
 200                 if (rss->rss_hf & ETH_RSS_NONFRAG_IPV4_UDP)
 201                         hash_type |= HWRM_VNIC_RSS_CFG_INPUT_HASH_TYPE_UDP_IPV4;
 202                 if (rss->rss_hf & ETH_RSS_IPV6)
 203                         hash_type |= HWRM_VNIC_RSS_CFG_INPUT_HASH_TYPE_IPV6;
 204                 if (rss->rss_hf & ETH_RSS_NONFRAG_IPV6_TCP)
 205                         hash_type |= HWRM_VNIC_RSS_CFG_INPUT_HASH_TYPE_TCP_IPV6;
 206                 if (rss->rss_hf & ETH_RSS_NONFRAG_IPV6_UDP)
 207                         hash_type |= HWRM_VNIC_RSS_CFG_INPUT_HASH_TYPE_UDP_IPV6;
 208
 209                 for (i = 0; i < bp->nr_vnics; i++) {
 210                         STAILQ_FOREACH(vnic, &bp->ff_pool[i], next) {
 211                         vnic->hash_type |= hash_type;
 212
 213                         /*
 214                          * Use the supplied key if the key length is
 215                          * acceptable and the rss_key is not NULL
 216                          */
 217                         if (rss->rss_key &&
 218                             rss->rss_key_len <= HW_HASH_KEY_SIZE)
 219                                 memcpy(vnic->rss_hash_key,
 220                                        rss->rss_key, rss->rss_key_len);
 221                         }
 222                 }
 223         }
 224
 225         return rc;
 226
 227 err_out:
 228         /* Free allocated vnic/filters */
 229
 230         return rc;
 231 }
 232
 233 static void bnxt_rx_queue_release_mbufs(struct bnxt_rx_queue *rxq)
 234 {
 235         struct bnxt_sw_rx_bd *sw_ring;
 236         struct bnxt_tpa_info *tpa_info;
 237         uint16_t i;
 238
 239         if (rxq) {
 240                 sw_ring = rxq->rx_ring->rx_buf_ring;
 241                 if (sw_ring) {
 242                         for (i = 0; i < rxq->nb_rx_desc; i++) {
 243                                 if (sw_ring[i].mbuf) {
 244                                         rte_pktmbuf_free_seg(sw_ring[i].mbuf);
 245                                         sw_ring[i].mbuf = NULL;
 246                                 }
 247                         }
 248                 }
 249                 /* Free up mbufs in Agg ring */
 250                 sw_ring = rxq->rx_ring->ag_buf_ring;
 251                 if (sw_ring) {
 252                         for (i = 0; i < rxq->nb_rx_desc; i++) {
 253                                 if (sw_ring[i].mbuf) {
 254                                         rte_pktmbuf_free_seg(sw_ring[i].mbuf);
 255                                         sw_ring[i].mbuf = NULL;
 256                                 }
 257                         }
 258                 }
 259
 260                 /* Free up mbufs in TPA */
 261                 tpa_info = rxq->rx_ring->tpa_info;
 262                 if (tpa_info) {
 263                         for (i = 0; i < BNXT_TPA_MAX; i++) {
 264                                 if (tpa_info[i].mbuf) {
 265                                         rte_pktmbuf_free_seg(tpa_info[i].mbuf);
 266                                         tpa_info[i].mbuf = NULL;
 267                                 }
 268                         }
 269                 }
 270         }
 271 }
 272
 273 void bnxt_free_rx_mbufs(struct bnxt *bp)
 274 {
 275         struct bnxt_rx_queue *rxq;
 276         int i;
 277
 278         for (i = 0; i < (int)bp->rx_nr_rings; i++) {
 279                 rxq = bp->rx_queues[i];
 280                 bnxt_rx_queue_release_mbufs(rxq);
 281         }
 282 }
 283
 284 void bnxt_rx_queue_release_op(void *rx_queue)
 285 {
 286         struct bnxt_rx_queue *rxq = (struct bnxt_rx_queue *)rx_queue;
 287
 288         if (rxq) {
 289                 bnxt_rx_queue_release_mbufs(rxq);
 290
 291                 /* Free RX ring hardware descriptors */
 292                 bnxt_free_ring(rxq->rx_ring->rx_ring_struct);
 293                 /* Free RX Agg ring hardware descriptors */
 294                 bnxt_free_ring(rxq->rx_ring->ag_ring_struct);
 295
 296                 /* Free RX completion ring hardware descriptors */
 297                 bnxt_free_ring(rxq->cp_ring->cp_ring_struct);
 298
 299                 bnxt_free_rxq_stats(rxq);
 300
 301                 rte_free(rxq);
 302         }
 303 }
 304
 305 int bnxt_rx_queue_setup_op(struct rte_eth_dev *eth_dev,
 306                                uint16_t queue_idx,
 307                                uint16_t nb_desc,
 308                                unsigned int socket_id,
 309                                const struct rte_eth_rxconf *rx_conf,
 310                                struct rte_mempool *mp)
 311 {
 312         struct bnxt *bp = (struct bnxt *)eth_dev->data->dev_private;
 313         struct bnxt_rx_queue *rxq;
 314         int rc = 0;
 315
 316         if (!nb_desc || nb_desc > MAX_RX_DESC_CNT) {
 317                 RTE_LOG(ERR, PMD, "nb_desc %d is invalid\n", nb_desc);
 318                 rc = -EINVAL;
 319                 goto out;
 320         }
 321
 322         if (eth_dev->data->rx_queues) {
 323                 rxq = eth_dev->data->rx_queues[queue_idx];
 324                 if (rxq)
 325                         bnxt_rx_queue_release_op(rxq);
 326         }
 327         rxq = rte_zmalloc_socket("bnxt_rx_queue", sizeof(struct bnxt_rx_queue),
 328                                  RTE_CACHE_LINE_SIZE, socket_id);
 329         if (!rxq) {
 330                 RTE_LOG(ERR, PMD, "bnxt_rx_queue allocation failed!\n");
 331                 rc = -ENOMEM;
 332                 goto out;
 333         }
 334         rxq->bp = bp;
 335         rxq->mb_pool = mp;
 336         rxq->nb_rx_desc = nb_desc;
 337         rxq->rx_free_thresh = rx_conf->rx_free_thresh;
 338
 339         RTE_LOG(DEBUG, PMD, "RX Buf size is %d\n", rxq->rx_buf_use_size);
 340         RTE_LOG(DEBUG, PMD, "RX Buf MTU %d\n", eth_dev->data->mtu);
 341
 342         rc = bnxt_init_rx_ring_struct(rxq, socket_id);
 343         if (rc)
 344                 goto out;
 345
 346         rxq->queue_id = queue_idx;
 347         rxq->port_id = eth_dev->data->port_id;
 348         rxq->crc_len = (uint8_t)((eth_dev->data->dev_conf.rxmode.hw_strip_crc) ?
 349                                 0 : ETHER_CRC_LEN);
 350
 351         eth_dev->data->rx_queues[queue_idx] = rxq;
 352         /* Allocate RX ring hardware descriptors */
 353         if (bnxt_alloc_rings(bp, queue_idx, NULL, rxq->rx_ring, rxq->cp_ring,
 354                         "rxr")) {
 355                 RTE_LOG(ERR, PMD,
 356                         "ring_dma_zone_reserve for rx_ring failed!\n");
 357                 bnxt_rx_queue_release_op(rxq);
 358                 rc = -ENOMEM;
 359                 goto out;
 360         }
 361
 362 out:
 363         return rc;
 364 }