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         const struct rte_eth_vmdq_rx_conf *conf =
  64                     &dev_conf->rx_adv_conf.vmdq_rx_conf;
  65         unsigned int i, j, nb_q_per_grp = 1, ring_idx = 0;
  66         int start_grp_id, end_grp_id = 1, rc = 0;
  67         struct bnxt_vnic_info *vnic;
  68         struct bnxt_filter_info *filter;
  69         enum rte_eth_nb_pools pools = bp->rx_cp_nr_rings, max_pools = 0;
  70         struct bnxt_rx_queue *rxq;
  71
  72         bp->nr_vnics = 0;
  73
  74         /* Single queue mode */
  75         if (bp->rx_cp_nr_rings < 2) {
  76                 vnic = bnxt_alloc_vnic(bp);
  77                 if (!vnic) {
  78                         PMD_DRV_LOG(ERR, "VNIC alloc failed\n");
  79                         rc = -ENOMEM;
  80                         goto err_out;
  81                 }
  82                 vnic->flags |= BNXT_VNIC_INFO_BCAST;
  83                 STAILQ_INSERT_TAIL(&bp->ff_pool[0], vnic, next);
  84                 bp->nr_vnics++;
  85
  86                 rxq = bp->eth_dev->data->rx_queues[0];
  87                 rxq->vnic = vnic;
  88
  89                 vnic->func_default = true;
  90                 vnic->ff_pool_idx = 0;
  91                 vnic->start_grp_id = 0;
  92                 vnic->end_grp_id = vnic->start_grp_id;
  93                 filter = bnxt_alloc_filter(bp);
  94                 if (!filter) {
  95                         PMD_DRV_LOG(ERR, "L2 filter alloc failed\n");
  96                         rc = -ENOMEM;
  97                         goto err_out;
  98                 }
  99                 STAILQ_INSERT_TAIL(&vnic->filter, filter, next);
 100                 goto out;
 101         }
 102
 103         /* Multi-queue mode */
 104         if (dev_conf->rxmode.mq_mode & ETH_MQ_RX_VMDQ_DCB_RSS) {
 105                 /* VMDq ONLY, VMDq+RSS, VMDq+DCB, VMDq+DCB+RSS */
 106
 107                 switch (dev_conf->rxmode.mq_mode) {
 108                 case ETH_MQ_RX_VMDQ_RSS:
 109                 case ETH_MQ_RX_VMDQ_ONLY:
 110                         /* ETH_8/64_POOLs */
 111                         pools = conf->nb_queue_pools;
 112                         /* For each pool, allocate MACVLAN CFA rule & VNIC */
 113                         max_pools = RTE_MIN(bp->max_vnics,
 114                                             RTE_MIN(bp->max_l2_ctx,
 115                                             RTE_MIN(bp->max_rsscos_ctx,
 116                                                     ETH_64_POOLS)));
 117                         if (pools > max_pools)
 118                                 pools = max_pools;
 119                         break;
 120                 case ETH_MQ_RX_RSS:
 121                         pools = bp->rx_cp_nr_rings;
 122                         break;
 123                 default:
 124                         PMD_DRV_LOG(ERR, "Unsupported mq_mod %d\n",
 125                                 dev_conf->rxmode.mq_mode);
 126                         rc = -EINVAL;
 127                         goto err_out;
 128                 }
 129         }
 130
 131         nb_q_per_grp = bp->rx_cp_nr_rings / pools;
 132         start_grp_id = 0;
 133         end_grp_id = nb_q_per_grp;
 134
 135         for (i = 0; i < pools; i++) {
 136                 vnic = bnxt_alloc_vnic(bp);
 137                 if (!vnic) {
 138                         PMD_DRV_LOG(ERR, "VNIC alloc failed\n");
 139                         rc = -ENOMEM;
 140                         goto err_out;
 141                 }
 142                 vnic->flags |= BNXT_VNIC_INFO_BCAST;
 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                         if (dev_conf->rxmode.mq_mode & ETH_MQ_RX_VMDQ_DCB) {
 152                                 bp->eth_dev->data->promiscuous = 1;
 153                                 vnic->flags |= BNXT_VNIC_INFO_PROMISC;
 154                         }
 155                         vnic->func_default = true;
 156                 }
 157                 vnic->ff_pool_idx = i;
 158                 vnic->start_grp_id = start_grp_id;
 159                 vnic->end_grp_id = end_grp_id;
 160
 161                 if (i) {
 162                         if (dev_conf->rxmode.mq_mode & ETH_MQ_RX_VMDQ_DCB ||
 163                             !(dev_conf->rxmode.mq_mode & ETH_MQ_RX_RSS))
 164                                 vnic->rss_dflt_cr = true;
 165                         goto skip_filter_allocation;
 166                 }
 167                 filter = bnxt_alloc_filter(bp);
 168                 if (!filter) {
 169                         PMD_DRV_LOG(ERR, "L2 filter alloc failed\n");
 170                         rc = -ENOMEM;
 171                         goto err_out;
 172                 }
 173                 /*
 174                  * TODO: Configure & associate CFA rule for
 175                  * each VNIC for each VMDq with MACVLAN, MACVLAN+TC
 176                  */
 177                 STAILQ_INSERT_TAIL(&vnic->filter, filter, next);
 178
 179 skip_filter_allocation:
 180                 start_grp_id = end_grp_id;
 181                 end_grp_id += nb_q_per_grp;
 182         }
 183
 184 out:
 185         if (dev_conf->rxmode.mq_mode & ETH_MQ_RX_RSS_FLAG) {
 186                 struct rte_eth_rss_conf *rss = &dev_conf->rx_adv_conf.rss_conf;
 187                 uint16_t hash_type = 0;
 188
 189                 if (bp->flags & BNXT_FLAG_UPDATE_HASH) {
 190                         rss = &bp->rss_conf;
 191                         bp->flags &= ~BNXT_FLAG_UPDATE_HASH;
 192                 }
 193
 194                 if (rss->rss_hf & ETH_RSS_IPV4)
 195                         hash_type |= HWRM_VNIC_RSS_CFG_INPUT_HASH_TYPE_IPV4;
 196                 if (rss->rss_hf & ETH_RSS_NONFRAG_IPV4_TCP)
 197                         hash_type |= HWRM_VNIC_RSS_CFG_INPUT_HASH_TYPE_TCP_IPV4;
 198                 if (rss->rss_hf & ETH_RSS_NONFRAG_IPV4_UDP)
 199                         hash_type |= HWRM_VNIC_RSS_CFG_INPUT_HASH_TYPE_UDP_IPV4;
 200                 if (rss->rss_hf & ETH_RSS_IPV6)
 201                         hash_type |= HWRM_VNIC_RSS_CFG_INPUT_HASH_TYPE_IPV6;
 202                 if (rss->rss_hf & ETH_RSS_NONFRAG_IPV6_TCP)
 203                         hash_type |= HWRM_VNIC_RSS_CFG_INPUT_HASH_TYPE_TCP_IPV6;
 204                 if (rss->rss_hf & ETH_RSS_NONFRAG_IPV6_UDP)
 205                         hash_type |= HWRM_VNIC_RSS_CFG_INPUT_HASH_TYPE_UDP_IPV6;
 206
 207                 for (i = 0; i < bp->nr_vnics; i++) {
 208                         STAILQ_FOREACH(vnic, &bp->ff_pool[i], next) {
 209                         vnic->hash_type = hash_type;
 210
 211                         /*
 212                          * Use the supplied key if the key length is
 213                          * acceptable and the rss_key is not NULL
 214                          */
 215                         if (rss->rss_key &&
 216                             rss->rss_key_len <= HW_HASH_KEY_SIZE)
 217                                 memcpy(vnic->rss_hash_key,
 218                                        rss->rss_key, rss->rss_key_len);
 219                         }
 220                 }
 221         }
 222
 223         return rc;
 224
 225 err_out:
 226         /* Free allocated vnic/filters */
 227
 228         return rc;
 229 }
 230
 231 static void bnxt_rx_queue_release_mbufs(struct bnxt_rx_queue *rxq)
 232 {
 233         struct bnxt_sw_rx_bd *sw_ring;
 234         struct bnxt_tpa_info *tpa_info;
 235         uint16_t i;
 236
 237         if (rxq) {
 238                 sw_ring = rxq->rx_ring->rx_buf_ring;
 239                 if (sw_ring) {
 240                         for (i = 0; i < rxq->nb_rx_desc; i++) {
 241                                 if (sw_ring[i].mbuf) {
 242                                         rte_pktmbuf_free_seg(sw_ring[i].mbuf);
 243                                         sw_ring[i].mbuf = NULL;
 244                                 }
 245                         }
 246                 }
 247                 /* Free up mbufs in Agg ring */
 248                 sw_ring = rxq->rx_ring->ag_buf_ring;
 249                 if (sw_ring) {
 250                         for (i = 0; i < rxq->nb_rx_desc; i++) {
 251                                 if (sw_ring[i].mbuf) {
 252                                         rte_pktmbuf_free_seg(sw_ring[i].mbuf);
 253                                         sw_ring[i].mbuf = NULL;
 254                                 }
 255                         }
 256                 }
 257
 258                 /* Free up mbufs in TPA */
 259                 tpa_info = rxq->rx_ring->tpa_info;
 260                 if (tpa_info) {
 261                         for (i = 0; i < BNXT_TPA_MAX; i++) {
 262                                 if (tpa_info[i].mbuf) {
 263                                         rte_pktmbuf_free_seg(tpa_info[i].mbuf);
 264                                         tpa_info[i].mbuf = NULL;
 265                                 }
 266                         }
 267                 }
 268         }
 269 }
 270
 271 void bnxt_free_rx_mbufs(struct bnxt *bp)
 272 {
 273         struct bnxt_rx_queue *rxq;
 274         int i;
 275
 276         for (i = 0; i < (int)bp->rx_nr_rings; i++) {
 277                 rxq = bp->rx_queues[i];
 278                 bnxt_rx_queue_release_mbufs(rxq);
 279         }
 280 }
 281
 282 void bnxt_rx_queue_release_op(void *rx_queue)
 283 {
 284         struct bnxt_rx_queue *rxq = (struct bnxt_rx_queue *)rx_queue;
 285
 286         if (rxq) {
 287                 bnxt_rx_queue_release_mbufs(rxq);
 288
 289                 /* Free RX ring hardware descriptors */
 290                 bnxt_free_ring(rxq->rx_ring->rx_ring_struct);
 291                 /* Free RX Agg ring hardware descriptors */
 292                 bnxt_free_ring(rxq->rx_ring->ag_ring_struct);
 293
 294                 /* Free RX completion ring hardware descriptors */
 295                 bnxt_free_ring(rxq->cp_ring->cp_ring_struct);
 296
 297                 bnxt_free_rxq_stats(rxq);
 298
 299                 rte_free(rxq);
 300         }
 301 }
 302
 303 int bnxt_rx_queue_setup_op(struct rte_eth_dev *eth_dev,
 304                                uint16_t queue_idx,
 305                                uint16_t nb_desc,
 306                                unsigned int socket_id,
 307                                const struct rte_eth_rxconf *rx_conf,
 308                                struct rte_mempool *mp)
 309 {
 310         struct bnxt *bp = (struct bnxt *)eth_dev->data->dev_private;
 311         struct bnxt_rx_queue *rxq;
 312         int rc = 0;
 313
 314         if (queue_idx >= bp->max_rx_rings) {
 315                 PMD_DRV_LOG(ERR,
 316                         "Cannot create Rx ring %d. Only %d rings available\n",
 317                         queue_idx, bp->max_rx_rings);
 318                 return -ENOSPC;
 319         }
 320
 321         if (!nb_desc || nb_desc > MAX_RX_DESC_CNT) {
 322                 PMD_DRV_LOG(ERR, "nb_desc %d is invalid\n", nb_desc);
 323                 rc = -EINVAL;
 324                 goto out;
 325         }
 326
 327         if (eth_dev->data->rx_queues) {
 328                 rxq = eth_dev->data->rx_queues[queue_idx];
 329                 if (rxq)
 330                         bnxt_rx_queue_release_op(rxq);
 331         }
 332         rxq = rte_zmalloc_socket("bnxt_rx_queue", sizeof(struct bnxt_rx_queue),
 333                                  RTE_CACHE_LINE_SIZE, socket_id);
 334         if (!rxq) {
 335                 PMD_DRV_LOG(ERR, "bnxt_rx_queue allocation failed!\n");
 336                 rc = -ENOMEM;
 337                 goto out;
 338         }
 339         rxq->bp = bp;
 340         rxq->mb_pool = mp;
 341         rxq->nb_rx_desc = nb_desc;
 342         rxq->rx_free_thresh = rx_conf->rx_free_thresh;
 343
 344         PMD_DRV_LOG(DEBUG, "RX Buf size is %d\n", rxq->rx_buf_use_size);
 345         PMD_DRV_LOG(DEBUG, "RX Buf MTU %d\n", eth_dev->data->mtu);
 346
 347         rc = bnxt_init_rx_ring_struct(rxq, socket_id);
 348         if (rc)
 349                 goto out;
 350
 351         rxq->queue_id = queue_idx;
 352         rxq->port_id = eth_dev->data->port_id;
 353         rxq->crc_len = (uint8_t)((eth_dev->data->dev_conf.rxmode.hw_strip_crc) ?
 354                                 0 : ETHER_CRC_LEN);
 355
 356         eth_dev->data->rx_queues[queue_idx] = rxq;
 357         /* Allocate RX ring hardware descriptors */
 358         if (bnxt_alloc_rings(bp, queue_idx, NULL, rxq->rx_ring, rxq->cp_ring,
 359                         "rxr")) {
 360                 PMD_DRV_LOG(ERR,
 361                         "ring_dma_zone_reserve for rx_ring failed!\n");
 362                 bnxt_rx_queue_release_op(rxq);
 363                 rc = -ENOMEM;
 364                 goto out;
 365         }
 366
 367 out:
 368         return rc;
 369 }
 370
 371 int
 372 bnxt_rx_queue_intr_enable_op(struct rte_eth_dev *eth_dev, uint16_t queue_id)
 373 {
 374         struct bnxt_rx_queue *rxq;
 375         struct bnxt_cp_ring_info *cpr;
 376         int rc = 0;
 377
 378         if (eth_dev->data->rx_queues) {
 379                 rxq = eth_dev->data->rx_queues[queue_id];
 380                 if (!rxq) {
 381                         rc = -EINVAL;
 382                         return rc;
 383                 }
 384                 cpr = rxq->cp_ring;
 385                 B_CP_DB_ARM(cpr);
 386         }
 387         return rc;
 388 }
 389
 390 int
 391 bnxt_rx_queue_intr_disable_op(struct rte_eth_dev *eth_dev, uint16_t queue_id)
 392 {
 393         struct bnxt_rx_queue *rxq;
 394         struct bnxt_cp_ring_info *cpr;
 395         int rc = 0;
 396
 397         if (eth_dev->data->rx_queues) {
 398                 rxq = eth_dev->data->rx_queues[queue_id];
 399                 if (!rxq) {
 400                         rc = -EINVAL;
 401                         return rc;
 402                 }
 403                 cpr = rxq->cp_ring;
 404                 B_CP_DB_DISARM(cpr);
 405         }
 406         return rc;
 407 }
 408
 409 int bnxt_rx_queue_start(struct rte_eth_dev *dev, uint16_t rx_queue_id)
 410 {
 411         struct bnxt *bp = (struct bnxt *)dev->data->dev_private;
 412         struct rte_eth_conf *dev_conf = &bp->eth_dev->data->dev_conf;
 413         struct bnxt_rx_queue *rxq = bp->rx_queues[rx_queue_id];
 414         struct bnxt_vnic_info *vnic = NULL;
 415
 416         if (rxq == NULL) {
 417                 PMD_DRV_LOG(ERR, "Invalid Rx queue %d\n", rx_queue_id);
 418                 return -EINVAL;
 419         }
 420
 421         dev->data->rx_queue_state[rx_queue_id] = RTE_ETH_QUEUE_STATE_STARTED;
 422         rxq->rx_deferred_start = false;
 423         PMD_DRV_LOG(INFO, "Rx queue started %d\n", rx_queue_id);
 424         if (dev_conf->rxmode.mq_mode & ETH_MQ_RX_RSS_FLAG) {
 425                 vnic = rxq->vnic;
 426                 if (vnic->fw_grp_ids[rx_queue_id] != INVALID_HW_RING_ID)
 427                         return 0;
 428                 PMD_DRV_LOG(DEBUG, "vnic = %p fw_grp_id = %d\n",
 429                         vnic, bp->grp_info[rx_queue_id + 1].fw_grp_id);
 430                 vnic->fw_grp_ids[rx_queue_id] =
 431                                         bp->grp_info[rx_queue_id + 1].fw_grp_id;
 432                 return bnxt_vnic_rss_configure(bp, vnic);
 433         }
 434
 435         return 0;
 436 }
 437
 438 int bnxt_rx_queue_stop(struct rte_eth_dev *dev, uint16_t rx_queue_id)
 439 {
 440         struct bnxt *bp = (struct bnxt *)dev->data->dev_private;
 441         struct rte_eth_conf *dev_conf = &bp->eth_dev->data->dev_conf;
 442         struct bnxt_rx_queue *rxq = bp->rx_queues[rx_queue_id];
 443         struct bnxt_vnic_info *vnic = NULL;
 444
 445         if (rxq == NULL) {
 446                 PMD_DRV_LOG(ERR, "Invalid Rx queue %d\n", rx_queue_id);
 447                 return -EINVAL;
 448         }
 449
 450         dev->data->rx_queue_state[rx_queue_id] = RTE_ETH_QUEUE_STATE_STOPPED;
 451         rxq->rx_deferred_start = true;
 452         PMD_DRV_LOG(DEBUG, "Rx queue stopped\n");
 453
 454         if (dev_conf->rxmode.mq_mode & ETH_MQ_RX_RSS_FLAG) {
 455                 vnic = rxq->vnic;
 456                 vnic->fw_grp_ids[rx_queue_id] = INVALID_HW_RING_ID;
 457                 return bnxt_vnic_rss_configure(bp, vnic);
 458         }
 459         return 0;
 460 }