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