drivers/net/bnxt/bnxt_rxq.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2014-2018 Broadcom
   3  * All rights reserved.
   4  */
   5
   6 #include <inttypes.h>
   7
   8 #include <rte_malloc.h>
   9
  10 #include "bnxt.h"
  11 #include "bnxt_cpr.h"
  12 #include "bnxt_filter.h"
  13 #include "bnxt_hwrm.h"
  14 #include "bnxt_ring.h"
  15 #include "bnxt_rxq.h"
  16 #include "bnxt_rxr.h"
  17 #include "bnxt_vnic.h"
  18 #include "hsi_struct_def_dpdk.h"
  19
  20 /*
  21  * RX Queues
  22  */
  23
  24 void bnxt_free_rxq_stats(struct bnxt_rx_queue *rxq)
  25 {
  26         if (rxq && rxq->cp_ring && rxq->cp_ring->hw_stats)
  27                 rxq->cp_ring->hw_stats = NULL;
  28 }
  29
  30 int bnxt_mq_rx_configure(struct bnxt *bp)
  31 {
  32         struct rte_eth_conf *dev_conf = &bp->eth_dev->data->dev_conf;
  33         const struct rte_eth_vmdq_rx_conf *conf =
  34                     &dev_conf->rx_adv_conf.vmdq_rx_conf;
  35         unsigned int i, j, nb_q_per_grp = 1, ring_idx = 0;
  36         int start_grp_id, end_grp_id = 1, rc = 0;
  37         struct bnxt_vnic_info *vnic;
  38         struct bnxt_filter_info *filter;
  39         enum rte_eth_nb_pools pools = bp->rx_cp_nr_rings, max_pools = 0;
  40         struct bnxt_rx_queue *rxq;
  41
  42         bp->nr_vnics = 0;
  43
  44         /* Single queue mode */
  45         if (bp->rx_cp_nr_rings < 2) {
  46                 vnic = bnxt_alloc_vnic(bp);
  47                 if (!vnic) {
  48                         PMD_DRV_LOG(ERR, "VNIC alloc failed\n");
  49                         rc = -ENOMEM;
  50                         goto err_out;
  51                 }
  52                 vnic->flags |= BNXT_VNIC_INFO_BCAST;
  53                 STAILQ_INSERT_TAIL(&bp->ff_pool[0], vnic, next);
  54                 bp->nr_vnics++;
  55
  56                 rxq = bp->eth_dev->data->rx_queues[0];
  57                 rxq->vnic = vnic;
  58
  59                 vnic->func_default = true;
  60                 vnic->ff_pool_idx = 0;
  61                 vnic->start_grp_id = 0;
  62                 vnic->end_grp_id = vnic->start_grp_id;
  63                 filter = bnxt_alloc_filter(bp);
  64                 if (!filter) {
  65                         PMD_DRV_LOG(ERR, "L2 filter alloc failed\n");
  66                         rc = -ENOMEM;
  67                         goto err_out;
  68                 }
  69                 STAILQ_INSERT_TAIL(&vnic->filter, filter, next);
  70                 goto out;
  71         }
  72
  73         /* Multi-queue mode */
  74         if (dev_conf->rxmode.mq_mode & ETH_MQ_RX_VMDQ_DCB_RSS) {
  75                 /* VMDq ONLY, VMDq+RSS, VMDq+DCB, VMDq+DCB+RSS */
  76
  77                 switch (dev_conf->rxmode.mq_mode) {
  78                 case ETH_MQ_RX_VMDQ_RSS:
  79                 case ETH_MQ_RX_VMDQ_ONLY:
  80                         /* ETH_8/64_POOLs */
  81                         pools = conf->nb_queue_pools;
  82                         /* For each pool, allocate MACVLAN CFA rule & VNIC */
  83                         max_pools = RTE_MIN(bp->max_vnics,
  84                                             RTE_MIN(bp->max_l2_ctx,
  85                                             RTE_MIN(bp->max_rsscos_ctx,
  86                                                     ETH_64_POOLS)));
  87                         if (pools > max_pools)
  88                                 pools = max_pools;
  89                         break;
  90                 case ETH_MQ_RX_RSS:
  91                         pools = 1;
  92                         break;
  93                 default:
  94                         PMD_DRV_LOG(ERR, "Unsupported mq_mod %d\n",
  95                                 dev_conf->rxmode.mq_mode);
  96                         rc = -EINVAL;
  97                         goto err_out;
  98                 }
  99         }
 100
 101         nb_q_per_grp = bp->rx_cp_nr_rings / pools;
 102         start_grp_id = 0;
 103         end_grp_id = nb_q_per_grp;
 104
 105         for (i = 0; i < pools; i++) {
 106                 vnic = bnxt_alloc_vnic(bp);
 107                 if (!vnic) {
 108                         PMD_DRV_LOG(ERR, "VNIC alloc failed\n");
 109                         rc = -ENOMEM;
 110                         goto err_out;
 111                 }
 112                 vnic->flags |= BNXT_VNIC_INFO_BCAST;
 113                 STAILQ_INSERT_TAIL(&bp->ff_pool[i], vnic, next);
 114                 bp->nr_vnics++;
 115
 116                 for (j = 0; j < nb_q_per_grp; j++, ring_idx++) {
 117                         rxq = bp->eth_dev->data->rx_queues[ring_idx];
 118                         rxq->vnic = vnic;
 119                 }
 120                 if (i == 0) {
 121                         if (dev_conf->rxmode.mq_mode & ETH_MQ_RX_VMDQ_DCB) {
 122                                 bp->eth_dev->data->promiscuous = 1;
 123                                 vnic->flags |= BNXT_VNIC_INFO_PROMISC;
 124                         }
 125                         vnic->func_default = true;
 126                 }
 127                 vnic->ff_pool_idx = i;
 128                 vnic->start_grp_id = start_grp_id;
 129                 vnic->end_grp_id = end_grp_id;
 130
 131                 if (i) {
 132                         if (dev_conf->rxmode.mq_mode & ETH_MQ_RX_VMDQ_DCB ||
 133                             !(dev_conf->rxmode.mq_mode & ETH_MQ_RX_RSS))
 134                                 vnic->rss_dflt_cr = true;
 135                         goto skip_filter_allocation;
 136                 }
 137                 filter = bnxt_alloc_filter(bp);
 138                 if (!filter) {
 139                         PMD_DRV_LOG(ERR, "L2 filter alloc failed\n");
 140                         rc = -ENOMEM;
 141                         goto err_out;
 142                 }
 143                 /*
 144                  * TODO: Configure & associate CFA rule for
 145                  * each VNIC for each VMDq with MACVLAN, MACVLAN+TC
 146                  */
 147                 STAILQ_INSERT_TAIL(&vnic->filter, filter, next);
 148
 149 skip_filter_allocation:
 150                 start_grp_id = end_grp_id;
 151                 end_grp_id += nb_q_per_grp;
 152         }
 153
 154 out:
 155         if (dev_conf->rxmode.mq_mode & ETH_MQ_RX_RSS_FLAG) {
 156                 struct rte_eth_rss_conf *rss = &dev_conf->rx_adv_conf.rss_conf;
 157                 uint16_t hash_type = 0;
 158
 159                 if (bp->flags & BNXT_FLAG_UPDATE_HASH) {
 160                         rss = &bp->rss_conf;
 161                         bp->flags &= ~BNXT_FLAG_UPDATE_HASH;
 162                 }
 163
 164                 if (rss->rss_hf & ETH_RSS_IPV4)
 165                         hash_type |= HWRM_VNIC_RSS_CFG_INPUT_HASH_TYPE_IPV4;
 166                 if (rss->rss_hf & ETH_RSS_NONFRAG_IPV4_TCP)
 167                         hash_type |= HWRM_VNIC_RSS_CFG_INPUT_HASH_TYPE_TCP_IPV4;
 168                 if (rss->rss_hf & ETH_RSS_NONFRAG_IPV4_UDP)
 169                         hash_type |= HWRM_VNIC_RSS_CFG_INPUT_HASH_TYPE_UDP_IPV4;
 170                 if (rss->rss_hf & ETH_RSS_IPV6)
 171                         hash_type |= HWRM_VNIC_RSS_CFG_INPUT_HASH_TYPE_IPV6;
 172                 if (rss->rss_hf & ETH_RSS_NONFRAG_IPV6_TCP)
 173                         hash_type |= HWRM_VNIC_RSS_CFG_INPUT_HASH_TYPE_TCP_IPV6;
 174                 if (rss->rss_hf & ETH_RSS_NONFRAG_IPV6_UDP)
 175                         hash_type |= HWRM_VNIC_RSS_CFG_INPUT_HASH_TYPE_UDP_IPV6;
 176
 177                 for (i = 0; i < bp->nr_vnics; i++) {
 178                         STAILQ_FOREACH(vnic, &bp->ff_pool[i], next) {
 179                         vnic->hash_type = hash_type;
 180
 181                         /*
 182                          * Use the supplied key if the key length is
 183                          * acceptable and the rss_key is not NULL
 184                          */
 185                         if (rss->rss_key &&
 186                             rss->rss_key_len <= HW_HASH_KEY_SIZE)
 187                                 memcpy(vnic->rss_hash_key,
 188                                        rss->rss_key, rss->rss_key_len);
 189                         }
 190                 }
 191         }
 192
 193         return rc;
 194
 195 err_out:
 196         /* Free allocated vnic/filters */
 197
 198         return rc;
 199 }
 200
 201 static void bnxt_rx_queue_release_mbufs(struct bnxt_rx_queue *rxq)
 202 {
 203         struct bnxt_sw_rx_bd *sw_ring;
 204         struct bnxt_tpa_info *tpa_info;
 205         uint16_t i;
 206
 207         if (rxq) {
 208                 sw_ring = rxq->rx_ring->rx_buf_ring;
 209                 if (sw_ring) {
 210                         for (i = 0; i < rxq->nb_rx_desc; i++) {
 211                                 if (sw_ring[i].mbuf) {
 212                                         rte_pktmbuf_free_seg(sw_ring[i].mbuf);
 213                                         sw_ring[i].mbuf = NULL;
 214                                 }
 215                         }
 216                 }
 217                 /* Free up mbufs in Agg ring */
 218                 sw_ring = rxq->rx_ring->ag_buf_ring;
 219                 if (sw_ring) {
 220                         for (i = 0; i < rxq->nb_rx_desc; i++) {
 221                                 if (sw_ring[i].mbuf) {
 222                                         rte_pktmbuf_free_seg(sw_ring[i].mbuf);
 223                                         sw_ring[i].mbuf = NULL;
 224                                 }
 225                         }
 226                 }
 227
 228                 /* Free up mbufs in TPA */
 229                 tpa_info = rxq->rx_ring->tpa_info;
 230                 if (tpa_info) {
 231                         for (i = 0; i < BNXT_TPA_MAX; i++) {
 232                                 if (tpa_info[i].mbuf) {
 233                                         rte_pktmbuf_free_seg(tpa_info[i].mbuf);
 234                                         tpa_info[i].mbuf = NULL;
 235                                 }
 236                         }
 237                 }
 238         }
 239 }
 240
 241 void bnxt_free_rx_mbufs(struct bnxt *bp)
 242 {
 243         struct bnxt_rx_queue *rxq;
 244         int i;
 245
 246         for (i = 0; i < (int)bp->rx_nr_rings; i++) {
 247                 rxq = bp->rx_queues[i];
 248                 bnxt_rx_queue_release_mbufs(rxq);
 249         }
 250 }
 251
 252 void bnxt_rx_queue_release_op(void *rx_queue)
 253 {
 254         struct bnxt_rx_queue *rxq = (struct bnxt_rx_queue *)rx_queue;
 255
 256         if (rxq) {
 257                 bnxt_rx_queue_release_mbufs(rxq);
 258
 259                 /* Free RX ring hardware descriptors */
 260                 bnxt_free_ring(rxq->rx_ring->rx_ring_struct);
 261                 /* Free RX Agg ring hardware descriptors */
 262                 bnxt_free_ring(rxq->rx_ring->ag_ring_struct);
 263
 264                 /* Free RX completion ring hardware descriptors */
 265                 bnxt_free_ring(rxq->cp_ring->cp_ring_struct);
 266
 267                 bnxt_free_rxq_stats(rxq);
 268                 rte_memzone_free(rxq->mz);
 269                 rxq->mz = NULL;
 270
 271                 rte_free(rxq);
 272         }
 273 }
 274
 275 int bnxt_rx_queue_setup_op(struct rte_eth_dev *eth_dev,
 276                                uint16_t queue_idx,
 277                                uint16_t nb_desc,
 278                                unsigned int socket_id,
 279                                const struct rte_eth_rxconf *rx_conf,
 280                                struct rte_mempool *mp)
 281 {
 282         struct bnxt *bp = (struct bnxt *)eth_dev->data->dev_private;
 283         uint64_t rx_offloads = eth_dev->data->dev_conf.rxmode.offloads;
 284         struct bnxt_rx_queue *rxq;
 285         int rc = 0;
 286
 287         if (queue_idx >= bp->max_rx_rings) {
 288                 PMD_DRV_LOG(ERR,
 289                         "Cannot create Rx ring %d. Only %d rings available\n",
 290                         queue_idx, bp->max_rx_rings);
 291                 return -EINVAL;
 292         }
 293
 294         if (!nb_desc || nb_desc > MAX_RX_DESC_CNT) {
 295                 PMD_DRV_LOG(ERR, "nb_desc %d is invalid\n", nb_desc);
 296                 rc = -EINVAL;
 297                 goto out;
 298         }
 299
 300         if (eth_dev->data->rx_queues) {
 301                 rxq = eth_dev->data->rx_queues[queue_idx];
 302                 if (rxq)
 303                         bnxt_rx_queue_release_op(rxq);
 304         }
 305         rxq = rte_zmalloc_socket("bnxt_rx_queue", sizeof(struct bnxt_rx_queue),
 306                                  RTE_CACHE_LINE_SIZE, socket_id);
 307         if (!rxq) {
 308                 PMD_DRV_LOG(ERR, "bnxt_rx_queue allocation failed!\n");
 309                 rc = -ENOMEM;
 310                 goto out;
 311         }
 312         rxq->bp = bp;
 313         rxq->mb_pool = mp;
 314         rxq->nb_rx_desc = nb_desc;
 315         rxq->rx_free_thresh = rx_conf->rx_free_thresh;
 316
 317         PMD_DRV_LOG(DEBUG, "RX Buf size is %d\n", rxq->rx_buf_use_size);
 318         PMD_DRV_LOG(DEBUG, "RX Buf MTU %d\n", eth_dev->data->mtu);
 319
 320         rc = bnxt_init_rx_ring_struct(rxq, socket_id);
 321         if (rc)
 322                 goto out;
 323
 324         rxq->queue_id = queue_idx;
 325         rxq->port_id = eth_dev->data->port_id;
 326         rxq->crc_len = rx_offloads & DEV_RX_OFFLOAD_CRC_STRIP ?
 327                 0 : ETHER_CRC_LEN;
 328
 329         eth_dev->data->rx_queues[queue_idx] = rxq;
 330         /* Allocate RX ring hardware descriptors */
 331         if (bnxt_alloc_rings(bp, queue_idx, NULL, rxq, rxq->cp_ring,
 332                         "rxr")) {
 333                 PMD_DRV_LOG(ERR,
 334                         "ring_dma_zone_reserve for rx_ring failed!\n");
 335                 bnxt_rx_queue_release_op(rxq);
 336                 rc = -ENOMEM;
 337                 goto out;
 338         }
 339         rte_atomic64_init(&rxq->rx_mbuf_alloc_fail);
 340
 341 out:
 342         return rc;
 343 }
 344
 345 int
 346 bnxt_rx_queue_intr_enable_op(struct rte_eth_dev *eth_dev, uint16_t queue_id)
 347 {
 348         struct bnxt_rx_queue *rxq;
 349         struct bnxt_cp_ring_info *cpr;
 350         int rc = 0;
 351
 352         if (eth_dev->data->rx_queues) {
 353                 rxq = eth_dev->data->rx_queues[queue_id];
 354                 if (!rxq) {
 355                         rc = -EINVAL;
 356                         return rc;
 357                 }
 358                 cpr = rxq->cp_ring;
 359                 B_CP_DB_ARM(cpr);
 360         }
 361         return rc;
 362 }
 363
 364 int
 365 bnxt_rx_queue_intr_disable_op(struct rte_eth_dev *eth_dev, uint16_t queue_id)
 366 {
 367         struct bnxt_rx_queue *rxq;
 368         struct bnxt_cp_ring_info *cpr;
 369         int rc = 0;
 370
 371         if (eth_dev->data->rx_queues) {
 372                 rxq = eth_dev->data->rx_queues[queue_id];
 373                 if (!rxq) {
 374                         rc = -EINVAL;
 375                         return rc;
 376                 }
 377                 cpr = rxq->cp_ring;
 378                 B_CP_DB_DISARM(cpr);
 379         }
 380         return rc;
 381 }
 382
 383 int bnxt_rx_queue_start(struct rte_eth_dev *dev, uint16_t rx_queue_id)
 384 {
 385         struct bnxt *bp = (struct bnxt *)dev->data->dev_private;
 386         struct rte_eth_conf *dev_conf = &bp->eth_dev->data->dev_conf;
 387         struct bnxt_rx_queue *rxq = bp->rx_queues[rx_queue_id];
 388         struct bnxt_vnic_info *vnic = NULL;
 389
 390         if (rxq == NULL) {
 391                 PMD_DRV_LOG(ERR, "Invalid Rx queue %d\n", rx_queue_id);
 392                 return -EINVAL;
 393         }
 394
 395         dev->data->rx_queue_state[rx_queue_id] = RTE_ETH_QUEUE_STATE_STARTED;
 396         rxq->rx_deferred_start = false;
 397         PMD_DRV_LOG(INFO, "Rx queue started %d\n", rx_queue_id);
 398         if (dev_conf->rxmode.mq_mode & ETH_MQ_RX_RSS_FLAG) {
 399                 vnic = rxq->vnic;
 400                 if (vnic->fw_grp_ids[rx_queue_id] != INVALID_HW_RING_ID)
 401                         return 0;
 402                 PMD_DRV_LOG(DEBUG, "vnic = %p fw_grp_id = %d\n",
 403                         vnic, bp->grp_info[rx_queue_id + 1].fw_grp_id);
 404                 vnic->fw_grp_ids[rx_queue_id] =
 405                                         bp->grp_info[rx_queue_id + 1].fw_grp_id;
 406                 return bnxt_vnic_rss_configure(bp, vnic);
 407         }
 408
 409         return 0;
 410 }
 411
 412 int bnxt_rx_queue_stop(struct rte_eth_dev *dev, uint16_t rx_queue_id)
 413 {
 414         struct bnxt *bp = (struct bnxt *)dev->data->dev_private;
 415         struct rte_eth_conf *dev_conf = &bp->eth_dev->data->dev_conf;
 416         struct bnxt_rx_queue *rxq = bp->rx_queues[rx_queue_id];
 417         struct bnxt_vnic_info *vnic = NULL;
 418
 419         if (rxq == NULL) {
 420                 PMD_DRV_LOG(ERR, "Invalid Rx queue %d\n", rx_queue_id);
 421                 return -EINVAL;
 422         }
 423
 424         dev->data->rx_queue_state[rx_queue_id] = RTE_ETH_QUEUE_STATE_STOPPED;
 425         rxq->rx_deferred_start = true;
 426         PMD_DRV_LOG(DEBUG, "Rx queue stopped\n");
 427
 428         if (dev_conf->rxmode.mq_mode & ETH_MQ_RX_RSS_FLAG) {
 429                 vnic = rxq->vnic;
 430                 vnic->fw_grp_ids[rx_queue_id] = INVALID_HW_RING_ID;
 431                 return bnxt_vnic_rss_configure(bp, vnic);
 432         }
 433         return 0;
 434 }