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         /* 'Unreserve' rte_memzone */
  57
  58         if (cpr->hw_stats)
  59                 cpr->hw_stats = NULL;
  60 }
  61
  62 int bnxt_mq_rx_configure(struct bnxt *bp)
  63 {
  64         struct rte_eth_conf *dev_conf = &bp->eth_dev->data->dev_conf;
  65         unsigned int i, j, nb_q_per_grp, ring_idx;
  66         int start_grp_id, end_grp_id, rc = 0;
  67         struct bnxt_vnic_info *vnic;
  68         struct bnxt_filter_info *filter;
  69         struct bnxt_rx_queue *rxq;
  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                 STAILQ_INSERT_TAIL(&bp->ff_pool[0], vnic, next);
  82                 bp->nr_vnics++;
  83
  84                 rxq = bp->eth_dev->data->rx_queues[0];
  85                 rxq->vnic = vnic;
  86
  87                 vnic->func_default = true;
  88                 vnic->ff_pool_idx = 0;
  89                 vnic->start_grp_id = 1;
  90                 vnic->end_grp_id = vnic->start_grp_id +
  91                                    bp->rx_cp_nr_rings - 1;
  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_FLAG) {
 104                 /* VMDq ONLY, VMDq+RSS, VMDq+DCB, VMDq+DCB+RSS */
 105                 enum rte_eth_nb_pools pools;
 106
 107                 switch (dev_conf->rxmode.mq_mode) {
 108                 case ETH_MQ_RX_VMDQ_RSS:
 109                 case ETH_MQ_RX_VMDQ_ONLY:
 110                         {
 111                                 const struct rte_eth_vmdq_rx_conf *conf =
 112                                     &dev_conf->rx_adv_conf.vmdq_rx_conf;
 113
 114                                 /* ETH_8/64_POOLs */
 115                                 pools = conf->nb_queue_pools;
 116                                 break;
 117                         }
 118                 default:
 119                         RTE_LOG(ERR, PMD, "Unsupported mq_mod %d\n",
 120                                 dev_conf->rxmode.mq_mode);
 121                         rc = -EINVAL;
 122                         goto err_out;
 123                 }
 124                 /* For each pool, allocate MACVLAN CFA rule & VNIC */
 125                 if (!pools) {
 126                         RTE_LOG(ERR, PMD,
 127                                 "VMDq pool not set, defaulted to 64\n");
 128                         pools = ETH_64_POOLS;
 129                 }
 130                 nb_q_per_grp = bp->rx_cp_nr_rings / pools;
 131                 start_grp_id = 1;
 132                 end_grp_id = start_grp_id + nb_q_per_grp - 1;
 133
 134                 ring_idx = 0;
 135                 for (i = 0; i < pools; i++) {
 136                         vnic = bnxt_alloc_vnic(bp);
 137                         if (!vnic) {
 138                                 RTE_LOG(ERR, PMD,
 139                                         "VNIC alloc failed\n");
 140                                 rc = -ENOMEM;
 141                                 goto err_out;
 142                         }
 143                         STAILQ_INSERT_TAIL(&bp->ff_pool[i], vnic, next);
 144                         bp->nr_vnics++;
 145
 146                         for (j = 0; j < nb_q_per_grp; j++, ring_idx++) {
 147                                 rxq = bp->eth_dev->data->rx_queues[ring_idx];
 148                                 rxq->vnic = vnic;
 149                         }
 150                         if (i == 0)
 151                                 vnic->func_default = true;
 152                         vnic->ff_pool_idx = i;
 153                         vnic->start_grp_id = start_grp_id;
 154                         vnic->end_grp_id = end_grp_id;
 155
 156                         filter = bnxt_alloc_filter(bp);
 157                         if (!filter) {
 158                                 RTE_LOG(ERR, PMD,
 159                                         "L2 filter alloc failed\n");
 160                                 rc = -ENOMEM;
 161                                 goto err_out;
 162                         }
 163                         /*
 164                          * TODO: Configure & associate CFA rule for
 165                          * each VNIC for each VMDq with MACVLAN, MACVLAN+TC
 166                          */
 167                         STAILQ_INSERT_TAIL(&vnic->filter, filter, next);
 168
 169                         start_grp_id = end_grp_id + 1;
 170                         end_grp_id += nb_q_per_grp;
 171                 }
 172                 goto out;
 173         }
 174
 175         /* Non-VMDq mode - RSS, DCB, RSS+DCB */
 176         /* Init default VNIC for RSS or DCB only */
 177         vnic = bnxt_alloc_vnic(bp);
 178         if (!vnic) {
 179                 RTE_LOG(ERR, PMD, "VNIC alloc failed\n");
 180                 rc = -ENOMEM;
 181                 goto err_out;
 182         }
 183         /* Partition the rx queues for the single pool */
 184         for (i = 0; i < bp->rx_cp_nr_rings; i++) {
 185                 rxq = bp->eth_dev->data->rx_queues[i];
 186                 rxq->vnic = vnic;
 187         }
 188         STAILQ_INSERT_TAIL(&bp->ff_pool[0], vnic, next);
 189         bp->nr_vnics++;
 190
 191         vnic->func_default = true;
 192         vnic->ff_pool_idx = 0;
 193         vnic->start_grp_id = 1;
 194         vnic->end_grp_id = vnic->start_grp_id +
 195                            bp->rx_cp_nr_rings - 1;
 196         filter = bnxt_alloc_filter(bp);
 197         if (!filter) {
 198                 RTE_LOG(ERR, PMD, "L2 filter alloc failed\n");
 199                 rc = -ENOMEM;
 200                 goto err_out;
 201         }
 202         STAILQ_INSERT_TAIL(&vnic->filter, filter, next);
 203
 204         if (dev_conf->rxmode.mq_mode & ETH_MQ_RX_RSS_FLAG)
 205                 vnic->hash_type =
 206                         HWRM_VNIC_RSS_CFG_INPUT_HASH_TYPE_IPV4 |
 207                         HWRM_VNIC_RSS_CFG_INPUT_HASH_TYPE_IPV6;
 208
 209 out:
 210         return rc;
 211
 212 err_out:
 213         /* Free allocated vnic/filters */
 214
 215         return rc;
 216 }
 217
 218 static void bnxt_rx_queue_release_mbufs(struct bnxt_rx_queue *rxq __rte_unused)
 219 {
 220         struct bnxt_sw_rx_bd *sw_ring;
 221         uint16_t i;
 222
 223         if (rxq) {
 224                 sw_ring = rxq->rx_ring->rx_buf_ring;
 225                 if (sw_ring) {
 226                         for (i = 0; i < rxq->nb_rx_desc; i++) {
 227                                 if (sw_ring[i].mbuf) {
 228                                         rte_pktmbuf_free_seg(sw_ring[i].mbuf);
 229                                         sw_ring[i].mbuf = NULL;
 230                                 }
 231                         }
 232                 }
 233         }
 234 }
 235
 236 void bnxt_free_rx_mbufs(struct bnxt *bp)
 237 {
 238         struct bnxt_rx_queue *rxq;
 239         int i;
 240
 241         for (i = 0; i < (int)bp->rx_nr_rings; i++) {
 242                 rxq = bp->rx_queues[i];
 243                 bnxt_rx_queue_release_mbufs(rxq);
 244         }
 245 }
 246
 247 void bnxt_rx_queue_release_op(void *rx_queue)
 248 {
 249         struct bnxt_rx_queue *rxq = (struct bnxt_rx_queue *)rx_queue;
 250
 251         if (rxq) {
 252                 bnxt_rx_queue_release_mbufs(rxq);
 253
 254                 /* Free RX ring hardware descriptors */
 255                 bnxt_free_ring(rxq->rx_ring->rx_ring_struct);
 256
 257                 /* Free RX completion ring hardware descriptors */
 258                 bnxt_free_ring(rxq->cp_ring->cp_ring_struct);
 259
 260                 bnxt_free_rxq_stats(rxq);
 261
 262                 rte_free(rxq);
 263         }
 264 }
 265
 266 int bnxt_rx_queue_setup_op(struct rte_eth_dev *eth_dev,
 267                                uint16_t queue_idx,
 268                                uint16_t nb_desc,
 269                                unsigned int socket_id,
 270                                const struct rte_eth_rxconf *rx_conf,
 271                                struct rte_mempool *mp)
 272 {
 273         struct bnxt *bp = (struct bnxt *)eth_dev->data->dev_private;
 274         struct bnxt_rx_queue *rxq;
 275
 276         if (!nb_desc || nb_desc > MAX_RX_DESC_CNT) {
 277                 RTE_LOG(ERR, PMD, "nb_desc %d is invalid", nb_desc);
 278                 return -EINVAL;
 279         }
 280
 281         if (eth_dev->data->rx_queues) {
 282                 rxq = eth_dev->data->rx_queues[queue_idx];
 283                 if (rxq)
 284                         bnxt_rx_queue_release_op(rxq);
 285         }
 286         rxq = rte_zmalloc_socket("bnxt_rx_queue", sizeof(struct bnxt_rx_queue),
 287                                  RTE_CACHE_LINE_SIZE, socket_id);
 288         if (!rxq) {
 289                 RTE_LOG(ERR, PMD, "bnxt_rx_queue allocation failed!");
 290                 return -ENOMEM;
 291         }
 292         rxq->bp = bp;
 293         rxq->mb_pool = mp;
 294         rxq->nb_rx_desc = nb_desc;
 295         rxq->rx_free_thresh = rx_conf->rx_free_thresh;
 296
 297         bnxt_init_rx_ring_struct(rxq);
 298
 299         rxq->queue_id = queue_idx;
 300         rxq->port_id = eth_dev->data->port_id;
 301         rxq->crc_len = (uint8_t)((eth_dev->data->dev_conf.rxmode.hw_strip_crc) ?
 302                                 0 : ETHER_CRC_LEN);
 303
 304         eth_dev->data->rx_queues[queue_idx] = rxq;
 305         /* Allocate RX ring hardware descriptors */
 306         if (bnxt_alloc_rings(bp, queue_idx, NULL, rxq->rx_ring, rxq->cp_ring,
 307                         "rxr")) {
 308                 RTE_LOG(ERR, PMD, "ring_dma_zone_reserve for rx_ring failed!");
 309                 bnxt_rx_queue_release_op(rxq);
 310                 return -ENOMEM;
 311         }
 312
 313         return 0;
 314 }