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_vnic.h"
  45 #include "hsi_struct_def_dpdk.h"
  46
  47 /*
  48  * RX Queues
  49  */
  50
  51 void bnxt_free_rxq_stats(struct bnxt_rx_queue *rxq)
  52 {
  53         struct bnxt_cp_ring_info *cpr = rxq->cp_ring;
  54
  55         /* 'Unreserve' rte_memzone */
  56
  57         if (cpr->hw_stats)
  58                 cpr->hw_stats = NULL;
  59 }
  60
  61 int bnxt_mq_rx_configure(struct bnxt *bp)
  62 {
  63         struct rte_eth_conf *dev_conf = &bp->eth_dev->data->dev_conf;
  64         unsigned int i, j, nb_q_per_grp, ring_idx;
  65         int start_grp_id, end_grp_id, rc = 0;
  66         struct bnxt_vnic_info *vnic;
  67         struct bnxt_filter_info *filter;
  68         struct bnxt_rx_queue *rxq;
  69
  70         bp->nr_vnics = 0;
  71
  72         /* Single queue mode */
  73         if (bp->rx_cp_nr_rings < 2) {
  74                 vnic = bnxt_alloc_vnic(bp);
  75                 if (!vnic) {
  76                         RTE_LOG(ERR, PMD, "VNIC alloc failed\n");
  77                         rc = -ENOMEM;
  78                         goto err_out;
  79                 }
  80                 STAILQ_INSERT_TAIL(&bp->ff_pool[0], vnic, next);
  81                 bp->nr_vnics++;
  82
  83                 rxq = bp->eth_dev->data->rx_queues[0];
  84                 rxq->vnic = vnic;
  85
  86                 vnic->func_default = true;
  87                 vnic->ff_pool_idx = 0;
  88                 vnic->start_grp_id = 1;
  89                 vnic->end_grp_id = vnic->start_grp_id +
  90                                    bp->rx_cp_nr_rings - 1;
  91                 filter = bnxt_alloc_filter(bp);
  92                 if (!filter) {
  93                         RTE_LOG(ERR, PMD, "L2 filter alloc failed\n");
  94                         rc = -ENOMEM;
  95                         goto err_out;
  96                 }
  97                 STAILQ_INSERT_TAIL(&vnic->filter, filter, next);
  98                 goto out;
  99         }
 100
 101         /* Multi-queue mode */
 102         if (dev_conf->rxmode.mq_mode & ETH_MQ_RX_VMDQ_FLAG) {
 103                 /* VMDq ONLY, VMDq+RSS, VMDq+DCB, VMDq+DCB+RSS */
 104                 enum rte_eth_nb_pools pools;
 105
 106                 switch (dev_conf->rxmode.mq_mode) {
 107                 case ETH_MQ_RX_VMDQ_RSS:
 108                 case ETH_MQ_RX_VMDQ_ONLY:
 109                         {
 110                                 const struct rte_eth_vmdq_rx_conf *conf =
 111                                     &dev_conf->rx_adv_conf.vmdq_rx_conf;
 112
 113                                 /* ETH_8/64_POOLs */
 114                                 pools = conf->nb_queue_pools;
 115                                 break;
 116                         }
 117                 default:
 118                         RTE_LOG(ERR, PMD, "Unsupported mq_mod %d\n",
 119                                 dev_conf->rxmode.mq_mode);
 120                         rc = -EINVAL;
 121                         goto err_out;
 122                 }
 123                 /* For each pool, allocate MACVLAN CFA rule & VNIC */
 124                 if (!pools) {
 125                         RTE_LOG(ERR, PMD,
 126                                 "VMDq pool not set, defaulted to 64\n");
 127                         pools = ETH_64_POOLS;
 128                 }
 129                 nb_q_per_grp = bp->rx_cp_nr_rings / pools;
 130                 start_grp_id = 1;
 131                 end_grp_id = start_grp_id + nb_q_per_grp - 1;
 132
 133                 ring_idx = 0;
 134                 for (i = 0; i < pools; i++) {
 135                         vnic = bnxt_alloc_vnic(bp);
 136                         if (!vnic) {
 137                                 RTE_LOG(ERR, PMD,
 138                                         "VNIC alloc failed\n");
 139                                 rc = -ENOMEM;
 140                                 goto err_out;
 141                         }
 142                         STAILQ_INSERT_TAIL(&bp->ff_pool[i], vnic, next);
 143                         bp->nr_vnics++;
 144
 145                         for (j = 0; j < nb_q_per_grp; j++, ring_idx++) {
 146                                 rxq = bp->eth_dev->data->rx_queues[ring_idx];
 147                                 rxq->vnic = vnic;
 148                         }
 149                         if (i == 0)
 150                                 vnic->func_default = true;
 151                         vnic->ff_pool_idx = i;
 152                         vnic->start_grp_id = start_grp_id;
 153                         vnic->end_grp_id = end_grp_id;
 154
 155                         filter = bnxt_alloc_filter(bp);
 156                         if (!filter) {
 157                                 RTE_LOG(ERR, PMD,
 158                                         "L2 filter alloc failed\n");
 159                                 rc = -ENOMEM;
 160                                 goto err_out;
 161                         }
 162                         /*
 163                          * TODO: Configure & associate CFA rule for
 164                          * each VNIC for each VMDq with MACVLAN, MACVLAN+TC
 165                          */
 166                         STAILQ_INSERT_TAIL(&vnic->filter, filter, next);
 167
 168                         start_grp_id = end_grp_id + 1;
 169                         end_grp_id += nb_q_per_grp;
 170                 }
 171                 goto out;
 172         }
 173
 174         /* Non-VMDq mode - RSS, DCB, RSS+DCB */
 175         /* Init default VNIC for RSS or DCB only */
 176         vnic = bnxt_alloc_vnic(bp);
 177         if (!vnic) {
 178                 RTE_LOG(ERR, PMD, "VNIC alloc failed\n");
 179                 rc = -ENOMEM;
 180                 goto err_out;
 181         }
 182         /* Partition the rx queues for the single pool */
 183         for (i = 0; i < bp->rx_cp_nr_rings; i++) {
 184                 rxq = bp->eth_dev->data->rx_queues[i];
 185                 rxq->vnic = vnic;
 186         }
 187         STAILQ_INSERT_TAIL(&bp->ff_pool[0], vnic, next);
 188         bp->nr_vnics++;
 189
 190         vnic->func_default = true;
 191         vnic->ff_pool_idx = 0;
 192         vnic->start_grp_id = 1;
 193         vnic->end_grp_id = vnic->start_grp_id +
 194                            bp->rx_cp_nr_rings - 1;
 195         filter = bnxt_alloc_filter(bp);
 196         if (!filter) {
 197                 RTE_LOG(ERR, PMD, "L2 filter alloc failed\n");
 198                 rc = -ENOMEM;
 199                 goto err_out;
 200         }
 201         STAILQ_INSERT_TAIL(&vnic->filter, filter, next);
 202
 203         if (dev_conf->rxmode.mq_mode & ETH_MQ_RX_RSS_FLAG)
 204                 vnic->hash_type =
 205                         HWRM_VNIC_RSS_CFG_INPUT_HASH_TYPE_IPV4 |
 206                         HWRM_VNIC_RSS_CFG_INPUT_HASH_TYPE_IPV6;
 207
 208 out:
 209         return rc;
 210
 211 err_out:
 212         /* Free allocated vnic/filters */
 213
 214         return rc;
 215 }
 216
 217 static void bnxt_rx_queue_release_mbufs(struct bnxt_rx_queue *rxq __rte_unused)
 218 {
 219         /* TODO: Requires interaction with TX ring */
 220 }
 221
 222 void bnxt_free_rx_mbufs(struct bnxt *bp)
 223 {
 224         struct bnxt_rx_queue *rxq;
 225         int i;
 226
 227         for (i = 0; i < (int)bp->rx_nr_rings; i++) {
 228                 rxq = bp->rx_queues[i];
 229                 bnxt_rx_queue_release_mbufs(rxq);
 230         }
 231 }
 232
 233 void bnxt_rx_queue_release_op(void *rx_queue)
 234 {
 235         struct bnxt_rx_queue *rxq = (struct bnxt_rx_queue *)rx_queue;
 236
 237         if (rxq) {
 238                 bnxt_rx_queue_release_mbufs(rxq);
 239
 240                 /* TODO: Free ring and stats here */
 241
 242                 rte_free(rxq);
 243         }
 244 }
 245
 246 int bnxt_rx_queue_setup_op(struct rte_eth_dev *eth_dev,
 247                                uint16_t queue_idx,
 248                                uint16_t nb_desc,
 249                                unsigned int socket_id,
 250                                const struct rte_eth_rxconf *rx_conf,
 251                                struct rte_mempool *mp)
 252 {
 253         struct bnxt *bp = (struct bnxt *)eth_dev->data->dev_private;
 254         struct bnxt_rx_queue *rxq;
 255
 256         if (!nb_desc || nb_desc > MAX_RX_DESC_CNT) {
 257                 RTE_LOG(ERR, PMD, "nb_desc %d is invalid", nb_desc);
 258                 return -EINVAL;
 259         }
 260
 261         if (eth_dev->data->rx_queues) {
 262                 rxq = eth_dev->data->rx_queues[queue_idx];
 263                 if (rxq)
 264                         bnxt_rx_queue_release_op(rxq);
 265         }
 266         rxq = rte_zmalloc_socket("bnxt_rx_queue", sizeof(struct bnxt_rx_queue),
 267                                  RTE_CACHE_LINE_SIZE, socket_id);
 268         if (!rxq) {
 269                 RTE_LOG(ERR, PMD, "bnxt_rx_queue allocation failed!");
 270                 return -ENOMEM;
 271         }
 272         rxq->bp = bp;
 273         rxq->mb_pool = mp;
 274         rxq->nb_rx_desc = nb_desc;
 275         rxq->rx_free_thresh = rx_conf->rx_free_thresh;
 276
 277         /* TODO: Initialize ring structure */
 278
 279         rxq->queue_id = queue_idx;
 280         rxq->port_id = eth_dev->data->port_id;
 281         rxq->crc_len = (uint8_t)((eth_dev->data->dev_conf.rxmode.hw_strip_crc) ?
 282                                 0 : ETHER_CRC_LEN);
 283
 284         eth_dev->data->rx_queues[queue_idx] = rxq;
 285         /* TODO: Allocate RX ring hardware descriptors */
 286
 287         return 0;
 288 }