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