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         struct bnxt_cp_ring_info *cpr = rxq->cp_ring;
  27
  28         if (cpr->hw_stats)
  29                 cpr->hw_stats = NULL;
  30 }
  31
  32 int bnxt_mq_rx_configure(struct bnxt *bp)
  33 {
  34         struct rte_eth_conf *dev_conf = &bp->eth_dev->data->dev_conf;
  35         const struct rte_eth_vmdq_rx_conf *conf =
  36                     &dev_conf->rx_adv_conf.vmdq_rx_conf;
  37         unsigned int i, j, nb_q_per_grp = 1, ring_idx = 0;
  38         int start_grp_id, end_grp_id = 1, rc = 0;
  39         struct bnxt_vnic_info *vnic;
  40         struct bnxt_filter_info *filter;
  41         enum rte_eth_nb_pools pools = bp->rx_cp_nr_rings, max_pools = 0;
  42         struct bnxt_rx_queue *rxq;
  43
  44         bp->nr_vnics = 0;
  45
  46         /* Single queue mode */
  47         if (bp->rx_cp_nr_rings < 2) {
  48                 vnic = bnxt_alloc_vnic(bp);
  49                 if (!vnic) {
  50                         PMD_DRV_LOG(ERR, "VNIC alloc failed\n");
  51                         rc = -ENOMEM;
  52                         goto err_out;
  53                 }
  54                 vnic->flags |= BNXT_VNIC_INFO_BCAST;
  55                 STAILQ_INSERT_TAIL(&bp->ff_pool[0], vnic, next);
  56                 bp->nr_vnics++;
  57
  58                 rxq = bp->eth_dev->data->rx_queues[0];
  59                 rxq->vnic = vnic;
  60
  61                 vnic->func_default = true;
  62                 vnic->ff_pool_idx = 0;
  63                 vnic->start_grp_id = 0;
  64                 vnic->end_grp_id = vnic->start_grp_id;
  65                 filter = bnxt_alloc_filter(bp);
  66                 if (!filter) {
  67                         PMD_DRV_LOG(ERR, "L2 filter alloc failed\n");
  68                         rc = -ENOMEM;
  69                         goto err_out;
  70                 }
  71                 STAILQ_INSERT_TAIL(&vnic->filter, filter, next);
  72                 goto out;
  73         }
  74
  75         /* Multi-queue mode */
  76         if (dev_conf->rxmode.mq_mode & ETH_MQ_RX_VMDQ_DCB_RSS) {
  77                 /* VMDq ONLY, VMDq+RSS, VMDq+DCB, VMDq+DCB+RSS */
  78
  79                 switch (dev_conf->rxmode.mq_mode) {
  80                 case ETH_MQ_RX_VMDQ_RSS:
  81                 case ETH_MQ_RX_VMDQ_ONLY:
  82                         /* ETH_8/64_POOLs */
  83                         pools = conf->nb_queue_pools;
  84                         /* For each pool, allocate MACVLAN CFA rule & VNIC */
  85                         max_pools = RTE_MIN(bp->max_vnics,
  86                                             RTE_MIN(bp->max_l2_ctx,
  87                                             RTE_MIN(bp->max_rsscos_ctx,
  88                                                     ETH_64_POOLS)));
  89                         if (pools > max_pools)
  90                                 pools = max_pools;
  91                         break;
  92                 case ETH_MQ_RX_RSS:
  93                         pools = 1;
  94                         break;
  95                 default:
  96                         PMD_DRV_LOG(ERR, "Unsupported mq_mod %d\n",
  97                                 dev_conf->rxmode.mq_mode);
  98                         rc = -EINVAL;
  99                         goto err_out;
 100                 }
 101         }
 102
 103         nb_q_per_grp = bp->rx_cp_nr_rings / pools;
 104         start_grp_id = 0;
 105         end_grp_id = nb_q_per_grp;
 106
 107         for (i = 0; i < pools; i++) {
 108                 vnic = bnxt_alloc_vnic(bp);
 109                 if (!vnic) {
 110                         PMD_DRV_LOG(ERR, "VNIC alloc failed\n");
 111                         rc = -ENOMEM;
 112                         goto err_out;
 113                 }
 114                 vnic->flags |= BNXT_VNIC_INFO_BCAST;
 115                 STAILQ_INSERT_TAIL(&bp->ff_pool[i], vnic, next);
 116                 bp->nr_vnics++;
 117
 118                 for (j = 0; j < nb_q_per_grp; j++, ring_idx++) {
 119                         rxq = bp->eth_dev->data->rx_queues[ring_idx];
 120                         rxq->vnic = vnic;
 121                 }
 122                 if (i == 0) {
 123                         if (dev_conf->rxmode.mq_mode & ETH_MQ_RX_VMDQ_DCB) {
 124                                 bp->eth_dev->data->promiscuous = 1;
 125                                 vnic->flags |= BNXT_VNIC_INFO_PROMISC;
 126                         }
 127                         vnic->func_default = true;
 128                 }
 129                 vnic->ff_pool_idx = i;
 130                 vnic->start_grp_id = start_grp_id;
 131                 vnic->end_grp_id = end_grp_id;
 132
 133                 if (i) {
 134                         if (dev_conf->rxmode.mq_mode & ETH_MQ_RX_VMDQ_DCB ||
 135                             !(dev_conf->rxmode.mq_mode & ETH_MQ_RX_RSS))
 136                                 vnic->rss_dflt_cr = true;
 137                         goto skip_filter_allocation;
 138                 }
 139                 filter = bnxt_alloc_filter(bp);
 140                 if (!filter) {
 141                         PMD_DRV_LOG(ERR, "L2 filter alloc failed\n");
 142                         rc = -ENOMEM;
 143                         goto err_out;
 144                 }
 145                 /*
 146                  * TODO: Configure & associate CFA rule for
 147                  * each VNIC for each VMDq with MACVLAN, MACVLAN+TC
 148                  */
 149                 STAILQ_INSERT_TAIL(&vnic->filter, filter, next);
 150
 151 skip_filter_allocation:
 152                 start_grp_id = end_grp_id;
 153                 end_grp_id += nb_q_per_grp;
 154         }
 155
 156 out:
 157         if (dev_conf->rxmode.mq_mode & ETH_MQ_RX_RSS_FLAG) {
 158                 struct rte_eth_rss_conf *rss = &dev_conf->rx_adv_conf.rss_conf;
 159                 uint16_t hash_type = 0;
 160
 161                 if (bp->flags & BNXT_FLAG_UPDATE_HASH) {
 162                         rss = &bp->rss_conf;
 163                         bp->flags &= ~BNXT_FLAG_UPDATE_HASH;
 164                 }
 165
 166                 if (rss->rss_hf & ETH_RSS_IPV4)
 167                         hash_type |= HWRM_VNIC_RSS_CFG_INPUT_HASH_TYPE_IPV4;
 168                 if (rss->rss_hf & ETH_RSS_NONFRAG_IPV4_TCP)
 169                         hash_type |= HWRM_VNIC_RSS_CFG_INPUT_HASH_TYPE_TCP_IPV4;
 170                 if (rss->rss_hf & ETH_RSS_NONFRAG_IPV4_UDP)
 171                         hash_type |= HWRM_VNIC_RSS_CFG_INPUT_HASH_TYPE_UDP_IPV4;
 172                 if (rss->rss_hf & ETH_RSS_IPV6)
 173                         hash_type |= HWRM_VNIC_RSS_CFG_INPUT_HASH_TYPE_IPV6;
 174                 if (rss->rss_hf & ETH_RSS_NONFRAG_IPV6_TCP)
 175                         hash_type |= HWRM_VNIC_RSS_CFG_INPUT_HASH_TYPE_TCP_IPV6;
 176                 if (rss->rss_hf & ETH_RSS_NONFRAG_IPV6_UDP)
 177                         hash_type |= HWRM_VNIC_RSS_CFG_INPUT_HASH_TYPE_UDP_IPV6;
 178
 179                 for (i = 0; i < bp->nr_vnics; i++) {
 180                         STAILQ_FOREACH(vnic, &bp->ff_pool[i], next) {
 181                         vnic->hash_type = hash_type;
 182
 183                         /*
 184                          * Use the supplied key if the key length is
 185                          * acceptable and the rss_key is not NULL
 186                          */
 187                         if (rss->rss_key &&
 188                             rss->rss_key_len <= HW_HASH_KEY_SIZE)
 189                                 memcpy(vnic->rss_hash_key,
 190                                        rss->rss_key, rss->rss_key_len);
 191                         }
 192                 }
 193         }
 194
 195         return rc;
 196
 197 err_out:
 198         /* Free allocated vnic/filters */
 199
 200         return rc;
 201 }
 202
 203 static void bnxt_rx_queue_release_mbufs(struct bnxt_rx_queue *rxq)
 204 {
 205         struct bnxt_sw_rx_bd *sw_ring;
 206         struct bnxt_tpa_info *tpa_info;
 207         uint16_t i;
 208
 209         if (rxq) {
 210                 sw_ring = rxq->rx_ring->rx_buf_ring;
 211                 if (sw_ring) {
 212                         for (i = 0; i < rxq->nb_rx_desc; i++) {
 213                                 if (sw_ring[i].mbuf) {
 214                                         rte_pktmbuf_free_seg(sw_ring[i].mbuf);
 215                                         sw_ring[i].mbuf = NULL;
 216                                 }
 217                         }
 218                 }
 219                 /* Free up mbufs in Agg ring */
 220                 sw_ring = rxq->rx_ring->ag_buf_ring;
 221                 if (sw_ring) {
 222                         for (i = 0; i < rxq->nb_rx_desc; i++) {
 223                                 if (sw_ring[i].mbuf) {
 224                                         rte_pktmbuf_free_seg(sw_ring[i].mbuf);
 225                                         sw_ring[i].mbuf = NULL;
 226                                 }
 227                         }
 228                 }
 229
 230                 /* Free up mbufs in TPA */
 231                 tpa_info = rxq->rx_ring->tpa_info;
 232                 if (tpa_info) {
 233                         for (i = 0; i < BNXT_TPA_MAX; i++) {
 234                                 if (tpa_info[i].mbuf) {
 235                                         rte_pktmbuf_free_seg(tpa_info[i].mbuf);
 236                                         tpa_info[i].mbuf = NULL;
 237                                 }
 238                         }
 239                 }
 240         }
 241 }
 242
 243 void bnxt_free_rx_mbufs(struct bnxt *bp)
 244 {
 245         struct bnxt_rx_queue *rxq;
 246         int i;
 247
 248         for (i = 0; i < (int)bp->rx_nr_rings; i++) {
 249                 rxq = bp->rx_queues[i];
 250                 bnxt_rx_queue_release_mbufs(rxq);
 251         }
 252 }
 253
 254 void bnxt_rx_queue_release_op(void *rx_queue)
 255 {
 256         struct bnxt_rx_queue *rxq = (struct bnxt_rx_queue *)rx_queue;
 257
 258         if (rxq) {
 259                 bnxt_rx_queue_release_mbufs(rxq);
 260
 261                 /* Free RX ring hardware descriptors */
 262                 bnxt_free_ring(rxq->rx_ring->rx_ring_struct);
 263                 /* Free RX Agg ring hardware descriptors */
 264                 bnxt_free_ring(rxq->rx_ring->ag_ring_struct);
 265
 266                 /* Free RX completion ring hardware descriptors */
 267                 bnxt_free_ring(rxq->cp_ring->cp_ring_struct);
 268
 269                 bnxt_free_rxq_stats(rxq);
 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 -ENOSPC;
 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->rx_ring, 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
 340 out:
 341         return rc;
 342 }
 343
 344 int
 345 bnxt_rx_queue_intr_enable_op(struct rte_eth_dev *eth_dev, uint16_t queue_id)
 346 {
 347         struct bnxt_rx_queue *rxq;
 348         struct bnxt_cp_ring_info *cpr;
 349         int rc = 0;
 350
 351         if (eth_dev->data->rx_queues) {
 352                 rxq = eth_dev->data->rx_queues[queue_id];
 353                 if (!rxq) {
 354                         rc = -EINVAL;
 355                         return rc;
 356                 }
 357                 cpr = rxq->cp_ring;
 358                 B_CP_DB_ARM(cpr);
 359         }
 360         return rc;
 361 }
 362
 363 int
 364 bnxt_rx_queue_intr_disable_op(struct rte_eth_dev *eth_dev, uint16_t queue_id)
 365 {
 366         struct bnxt_rx_queue *rxq;
 367         struct bnxt_cp_ring_info *cpr;
 368         int rc = 0;
 369
 370         if (eth_dev->data->rx_queues) {
 371                 rxq = eth_dev->data->rx_queues[queue_id];
 372                 if (!rxq) {
 373                         rc = -EINVAL;
 374                         return rc;
 375                 }
 376                 cpr = rxq->cp_ring;
 377                 B_CP_DB_DISARM(cpr);
 378         }
 379         return rc;
 380 }
 381
 382 int bnxt_rx_queue_start(struct rte_eth_dev *dev, uint16_t rx_queue_id)
 383 {
 384         struct bnxt *bp = (struct bnxt *)dev->data->dev_private;
 385         struct rte_eth_conf *dev_conf = &bp->eth_dev->data->dev_conf;
 386         struct bnxt_rx_queue *rxq = bp->rx_queues[rx_queue_id];
 387         struct bnxt_vnic_info *vnic = NULL;
 388
 389         if (rxq == NULL) {
 390                 PMD_DRV_LOG(ERR, "Invalid Rx queue %d\n", rx_queue_id);
 391                 return -EINVAL;
 392         }
 393
 394         dev->data->rx_queue_state[rx_queue_id] = RTE_ETH_QUEUE_STATE_STARTED;
 395         rxq->rx_deferred_start = false;
 396         PMD_DRV_LOG(INFO, "Rx queue started %d\n", rx_queue_id);
 397         if (dev_conf->rxmode.mq_mode & ETH_MQ_RX_RSS_FLAG) {
 398                 vnic = rxq->vnic;
 399                 if (vnic->fw_grp_ids[rx_queue_id] != INVALID_HW_RING_ID)
 400                         return 0;
 401                 PMD_DRV_LOG(DEBUG, "vnic = %p fw_grp_id = %d\n",
 402                         vnic, bp->grp_info[rx_queue_id + 1].fw_grp_id);
 403                 vnic->fw_grp_ids[rx_queue_id] =
 404                                         bp->grp_info[rx_queue_id + 1].fw_grp_id;
 405                 return bnxt_vnic_rss_configure(bp, vnic);
 406         }
 407
 408         return 0;
 409 }
 410
 411 int bnxt_rx_queue_stop(struct rte_eth_dev *dev, uint16_t rx_queue_id)
 412 {
 413         struct bnxt *bp = (struct bnxt *)dev->data->dev_private;
 414         struct rte_eth_conf *dev_conf = &bp->eth_dev->data->dev_conf;
 415         struct bnxt_rx_queue *rxq = bp->rx_queues[rx_queue_id];
 416         struct bnxt_vnic_info *vnic = NULL;
 417
 418         if (rxq == NULL) {
 419                 PMD_DRV_LOG(ERR, "Invalid Rx queue %d\n", rx_queue_id);
 420                 return -EINVAL;
 421         }
 422
 423         dev->data->rx_queue_state[rx_queue_id] = RTE_ETH_QUEUE_STATE_STOPPED;
 424         rxq->rx_deferred_start = true;
 425         PMD_DRV_LOG(DEBUG, "Rx queue stopped\n");
 426
 427         if (dev_conf->rxmode.mq_mode & ETH_MQ_RX_RSS_FLAG) {
 428                 vnic = rxq->vnic;
 429                 vnic->fw_grp_ids[rx_queue_id] = INVALID_HW_RING_ID;
 430                 return bnxt_vnic_rss_configure(bp, vnic);
 431         }
 432         return 0;
 433 }