drivers/net/bnxt/bnxt_ring.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2014-2018 Broadcom
   3  * All rights reserved.
   4  */
   5
   6 #include <rte_bitmap.h>
   7 #include <rte_memzone.h>
   8 #include <rte_malloc.h>
   9 #include <unistd.h>
  10
  11 #include "bnxt.h"
  12 #include "bnxt_hwrm.h"
  13 #include "bnxt_ring.h"
  14 #include "bnxt_rxq.h"
  15 #include "bnxt_rxr.h"
  16 #include "bnxt_txq.h"
  17 #include "bnxt_txr.h"
  18
  19 #include "hsi_struct_def_dpdk.h"
  20
  21 /*
  22  * Generic ring handling
  23  */
  24
  25 void bnxt_free_ring(struct bnxt_ring *ring)
  26 {
  27         if (!ring)
  28                 return;
  29
  30         if (ring->vmem_size && *ring->vmem) {
  31                 memset((char *)*ring->vmem, 0, ring->vmem_size);
  32                 *ring->vmem = NULL;
  33         }
  34         ring->mem_zone = NULL;
  35 }
  36
  37 /*
  38  * Ring groups
  39  */
  40
  41 static void bnxt_init_ring_grps(struct bnxt *bp)
  42 {
  43         unsigned int i;
  44
  45         for (i = 0; i < bp->max_ring_grps; i++)
  46                 memset(&bp->grp_info[i], (uint8_t)HWRM_NA_SIGNATURE,
  47                        sizeof(struct bnxt_ring_grp_info));
  48 }
  49
  50 int bnxt_alloc_ring_grps(struct bnxt *bp)
  51 {
  52         if (bp->max_tx_rings == 0) {
  53                 PMD_DRV_LOG(ERR, "No TX rings available!\n");
  54                 return -EBUSY;
  55         }
  56
  57         /* THOR does not support ring groups.
  58          * But we will use the array to save RSS context IDs.
  59          */
  60         if (BNXT_CHIP_THOR(bp)) {
  61                 bp->max_ring_grps = BNXT_MAX_RSS_CTXTS_THOR;
  62         } else if (bp->max_ring_grps < bp->rx_cp_nr_rings) {
  63                 /* 1 ring is for default completion ring */
  64                 PMD_DRV_LOG(ERR, "Insufficient resource: Ring Group\n");
  65                 return -ENOSPC;
  66         }
  67
  68         if (BNXT_HAS_RING_GRPS(bp)) {
  69                 bp->grp_info = rte_zmalloc("bnxt_grp_info",
  70                                            sizeof(*bp->grp_info) *
  71                                            bp->max_ring_grps, 0);
  72                 if (!bp->grp_info) {
  73                         PMD_DRV_LOG(ERR,
  74                                     "Failed to alloc grp info tbl.\n");
  75                         return -ENOMEM;
  76                 }
  77                 bnxt_init_ring_grps(bp);
  78         }
  79
  80         return 0;
  81 }
  82
  83 /*
  84  * Allocates a completion ring with vmem and stats optionally also allocating
  85  * a TX and/or RX ring.  Passing NULL as tx_ring_info and/or rx_ring_info
  86  * to not allocate them.
  87  *
  88  * Order in the allocation is:
  89  * stats - Always non-zero length
  90  * cp vmem - Always zero-length, supported for the bnxt_ring abstraction
  91  * tx vmem - Only non-zero length if tx_ring_info is not NULL
  92  * rx vmem - Only non-zero length if rx_ring_info is not NULL
  93  * cp bd ring - Always non-zero length
  94  * tx bd ring - Only non-zero length if tx_ring_info is not NULL
  95  * rx bd ring - Only non-zero length if rx_ring_info is not NULL
  96  */
  97 int bnxt_alloc_rings(struct bnxt *bp, uint16_t qidx,
  98                             struct bnxt_tx_queue *txq,
  99                             struct bnxt_rx_queue *rxq,
 100                             struct bnxt_cp_ring_info *cp_ring_info,
 101                             struct bnxt_cp_ring_info *nq_ring_info,
 102                             const char *suffix)
 103 {
 104         struct bnxt_ring *cp_ring = cp_ring_info->cp_ring_struct;
 105         struct bnxt_rx_ring_info *rx_ring_info = rxq ? rxq->rx_ring : NULL;
 106         struct bnxt_tx_ring_info *tx_ring_info = txq ? txq->tx_ring : NULL;
 107         struct bnxt_ring *tx_ring;
 108         struct bnxt_ring *rx_ring;
 109         struct rte_pci_device *pdev = bp->pdev;
 110         uint64_t rx_offloads = bp->eth_dev->data->dev_conf.rxmode.offloads;
 111         const struct rte_memzone *mz = NULL;
 112         char mz_name[RTE_MEMZONE_NAMESIZE];
 113         rte_iova_t mz_phys_addr;
 114
 115         int stats_len = (tx_ring_info || rx_ring_info) ?
 116             RTE_CACHE_LINE_ROUNDUP(sizeof(struct hwrm_stat_ctx_query_output) -
 117                                    sizeof (struct hwrm_resp_hdr)) : 0;
 118         stats_len = RTE_ALIGN(stats_len, 128);
 119
 120         int cp_vmem_start = stats_len;
 121         int cp_vmem_len = RTE_CACHE_LINE_ROUNDUP(cp_ring->vmem_size);
 122         cp_vmem_len = RTE_ALIGN(cp_vmem_len, 128);
 123
 124         int nq_vmem_len = nq_ring_info ?
 125                 RTE_CACHE_LINE_ROUNDUP(cp_ring->vmem_size) : 0;
 126         nq_vmem_len = RTE_ALIGN(nq_vmem_len, 128);
 127
 128         int nq_vmem_start = cp_vmem_start + cp_vmem_len;
 129
 130         int tx_vmem_start = nq_vmem_start + nq_vmem_len;
 131         int tx_vmem_len =
 132             tx_ring_info ? RTE_CACHE_LINE_ROUNDUP(tx_ring_info->
 133                                                 tx_ring_struct->vmem_size) : 0;
 134         tx_vmem_len = RTE_ALIGN(tx_vmem_len, 128);
 135
 136         int rx_vmem_start = tx_vmem_start + tx_vmem_len;
 137         int rx_vmem_len = rx_ring_info ?
 138                 RTE_CACHE_LINE_ROUNDUP(rx_ring_info->
 139                                                 rx_ring_struct->vmem_size) : 0;
 140         rx_vmem_len = RTE_ALIGN(rx_vmem_len, 128);
 141         int ag_vmem_start = 0;
 142         int ag_vmem_len = 0;
 143         int cp_ring_start =  0;
 144         int nq_ring_start = 0;
 145
 146         ag_vmem_start = rx_vmem_start + rx_vmem_len;
 147         ag_vmem_len = rx_ring_info ? RTE_CACHE_LINE_ROUNDUP(
 148                                 rx_ring_info->ag_ring_struct->vmem_size) : 0;
 149         cp_ring_start = ag_vmem_start + ag_vmem_len;
 150         cp_ring_start = RTE_ALIGN(cp_ring_start, 4096);
 151
 152         int cp_ring_len = RTE_CACHE_LINE_ROUNDUP(cp_ring->ring_size *
 153                                                  sizeof(struct cmpl_base));
 154         cp_ring_len = RTE_ALIGN(cp_ring_len, 128);
 155         nq_ring_start = cp_ring_start + cp_ring_len;
 156         nq_ring_start = RTE_ALIGN(nq_ring_start, 4096);
 157
 158         int nq_ring_len = nq_ring_info ? cp_ring_len : 0;
 159
 160         int tx_ring_start = nq_ring_start + nq_ring_len;
 161         tx_ring_start = RTE_ALIGN(tx_ring_start, 4096);
 162         int tx_ring_len = tx_ring_info ?
 163             RTE_CACHE_LINE_ROUNDUP(tx_ring_info->tx_ring_struct->ring_size *
 164                                    sizeof(struct tx_bd_long)) : 0;
 165         tx_ring_len = RTE_ALIGN(tx_ring_len, 4096);
 166
 167         int rx_ring_start = tx_ring_start + tx_ring_len;
 168         rx_ring_start = RTE_ALIGN(rx_ring_start, 4096);
 169         int rx_ring_len =  rx_ring_info ?
 170                 RTE_CACHE_LINE_ROUNDUP(rx_ring_info->rx_ring_struct->ring_size *
 171                 sizeof(struct rx_prod_pkt_bd)) : 0;
 172         rx_ring_len = RTE_ALIGN(rx_ring_len, 4096);
 173
 174         int ag_ring_start = rx_ring_start + rx_ring_len;
 175         ag_ring_start = RTE_ALIGN(ag_ring_start, 4096);
 176         int ag_ring_len = rx_ring_len * AGG_RING_SIZE_FACTOR;
 177         ag_ring_len = RTE_ALIGN(ag_ring_len, 4096);
 178
 179         int ag_bitmap_start = ag_ring_start + ag_ring_len;
 180         int ag_bitmap_len =  rx_ring_info ?
 181                 RTE_CACHE_LINE_ROUNDUP(rte_bitmap_get_memory_footprint(
 182                         rx_ring_info->rx_ring_struct->ring_size *
 183                         AGG_RING_SIZE_FACTOR)) : 0;
 184
 185         int tpa_info_start = ag_bitmap_start + ag_bitmap_len;
 186         int tpa_info_len = 0;
 187
 188         if (rx_ring_info && (rx_offloads & DEV_RX_OFFLOAD_TCP_LRO)) {
 189                 int tpa_max = BNXT_TPA_MAX_AGGS(bp);
 190
 191                 tpa_info_len = tpa_max * sizeof(struct bnxt_tpa_info);
 192                 tpa_info_len = RTE_CACHE_LINE_ROUNDUP(tpa_info_len);
 193         }
 194
 195         int total_alloc_len = tpa_info_start;
 196         total_alloc_len += tpa_info_len;
 197
 198         snprintf(mz_name, RTE_MEMZONE_NAMESIZE,
 199                  "bnxt_%04x:%02x:%02x:%02x-%04x_%s", pdev->addr.domain,
 200                  pdev->addr.bus, pdev->addr.devid, pdev->addr.function, qidx,
 201                  suffix);
 202         mz_name[RTE_MEMZONE_NAMESIZE - 1] = 0;
 203         mz = rte_memzone_lookup(mz_name);
 204         if (!mz) {
 205                 mz = rte_memzone_reserve_aligned(mz_name, total_alloc_len,
 206                                 SOCKET_ID_ANY,
 207                                 RTE_MEMZONE_2MB |
 208                                 RTE_MEMZONE_SIZE_HINT_ONLY |
 209                                 RTE_MEMZONE_IOVA_CONTIG,
 210                                 getpagesize());
 211                 if (mz == NULL)
 212                         return -ENOMEM;
 213         }
 214         memset(mz->addr, 0, mz->len);
 215         mz_phys_addr = mz->iova;
 216
 217         if (tx_ring_info) {
 218                 txq->mz = mz;
 219                 tx_ring = tx_ring_info->tx_ring_struct;
 220
 221                 tx_ring->bd = ((char *)mz->addr + tx_ring_start);
 222                 tx_ring_info->tx_desc_ring = (struct tx_bd_long *)tx_ring->bd;
 223                 tx_ring->bd_dma = mz_phys_addr + tx_ring_start;
 224                 tx_ring_info->tx_desc_mapping = tx_ring->bd_dma;
 225                 tx_ring->mem_zone = (const void *)mz;
 226
 227                 if (!tx_ring->bd)
 228                         return -ENOMEM;
 229                 if (tx_ring->vmem_size) {
 230                         tx_ring->vmem =
 231                             (void **)((char *)mz->addr + tx_vmem_start);
 232                         tx_ring_info->tx_buf_ring =
 233                             (struct bnxt_sw_tx_bd *)tx_ring->vmem;
 234                 }
 235         }
 236
 237         if (rx_ring_info) {
 238                 rxq->mz = mz;
 239                 rx_ring = rx_ring_info->rx_ring_struct;
 240
 241                 rx_ring->bd = ((char *)mz->addr + rx_ring_start);
 242                 rx_ring_info->rx_desc_ring =
 243                     (struct rx_prod_pkt_bd *)rx_ring->bd;
 244                 rx_ring->bd_dma = mz_phys_addr + rx_ring_start;
 245                 rx_ring_info->rx_desc_mapping = rx_ring->bd_dma;
 246                 rx_ring->mem_zone = (const void *)mz;
 247
 248                 if (!rx_ring->bd)
 249                         return -ENOMEM;
 250                 if (rx_ring->vmem_size) {
 251                         rx_ring->vmem =
 252                             (void **)((char *)mz->addr + rx_vmem_start);
 253                         rx_ring_info->rx_buf_ring =
 254                             (struct bnxt_sw_rx_bd *)rx_ring->vmem;
 255                 }
 256
 257                 rx_ring = rx_ring_info->ag_ring_struct;
 258
 259                 rx_ring->bd = ((char *)mz->addr + ag_ring_start);
 260                 rx_ring_info->ag_desc_ring =
 261                     (struct rx_prod_pkt_bd *)rx_ring->bd;
 262                 rx_ring->bd_dma = mz->iova + ag_ring_start;
 263                 rx_ring_info->ag_desc_mapping = rx_ring->bd_dma;
 264                 rx_ring->mem_zone = (const void *)mz;
 265
 266                 if (!rx_ring->bd)
 267                         return -ENOMEM;
 268                 if (rx_ring->vmem_size) {
 269                         rx_ring->vmem =
 270                             (void **)((char *)mz->addr + ag_vmem_start);
 271                         rx_ring_info->ag_buf_ring =
 272                             (struct bnxt_sw_rx_bd *)rx_ring->vmem;
 273                 }
 274
 275                 rx_ring_info->ag_bitmap =
 276                     rte_bitmap_init(rx_ring_info->rx_ring_struct->ring_size *
 277                                     AGG_RING_SIZE_FACTOR, (uint8_t *)mz->addr +
 278                                     ag_bitmap_start, ag_bitmap_len);
 279
 280                 /* TPA info */
 281                 if (rx_offloads & DEV_RX_OFFLOAD_TCP_LRO)
 282                         rx_ring_info->tpa_info =
 283                                 ((struct bnxt_tpa_info *)((char *)mz->addr +
 284                                                           tpa_info_start));
 285         }
 286
 287         cp_ring->bd = ((char *)mz->addr + cp_ring_start);
 288         cp_ring->bd_dma = mz_phys_addr + cp_ring_start;
 289         cp_ring_info->cp_desc_ring = cp_ring->bd;
 290         cp_ring_info->cp_desc_mapping = cp_ring->bd_dma;
 291         cp_ring->mem_zone = (const void *)mz;
 292
 293         if (!cp_ring->bd)
 294                 return -ENOMEM;
 295         if (cp_ring->vmem_size)
 296                 *cp_ring->vmem = ((char *)mz->addr + stats_len);
 297         if (stats_len) {
 298                 cp_ring_info->hw_stats = mz->addr;
 299                 cp_ring_info->hw_stats_map = mz_phys_addr;
 300         }
 301         cp_ring_info->hw_stats_ctx_id = HWRM_NA_SIGNATURE;
 302
 303         if (nq_ring_info) {
 304                 struct bnxt_ring *nq_ring = nq_ring_info->cp_ring_struct;
 305
 306                 nq_ring->bd = (char *)mz->addr + nq_ring_start;
 307                 nq_ring->bd_dma = mz_phys_addr + nq_ring_start;
 308                 nq_ring_info->cp_desc_ring = nq_ring->bd;
 309                 nq_ring_info->cp_desc_mapping = nq_ring->bd_dma;
 310                 nq_ring->mem_zone = (const void *)mz;
 311
 312                 if (!nq_ring->bd)
 313                         return -ENOMEM;
 314                 if (nq_ring->vmem_size)
 315                         *nq_ring->vmem = (char *)mz->addr + nq_vmem_start;
 316
 317                 nq_ring_info->hw_stats_ctx_id = HWRM_NA_SIGNATURE;
 318         }
 319
 320         return 0;
 321 }
 322
 323 static void bnxt_init_dflt_coal(struct bnxt_coal *coal)
 324 {
 325         /* Tick values in micro seconds.
 326          * 1 coal_buf x bufs_per_record = 1 completion record.
 327          */
 328         coal->num_cmpl_aggr_int = BNXT_NUM_CMPL_AGGR_INT;
 329         /* This is a 6-bit value and must not be 0, or we'll get non stop IRQ */
 330         coal->num_cmpl_dma_aggr = BNXT_NUM_CMPL_DMA_AGGR;
 331         /* This is a 6-bit value and must not be 0, or we'll get non stop IRQ */
 332         coal->num_cmpl_dma_aggr_during_int = BNXT_NUM_CMPL_DMA_AGGR_DURING_INT;
 333         coal->int_lat_tmr_max = BNXT_INT_LAT_TMR_MAX;
 334         /* min timer set to 1/2 of interrupt timer */
 335         coal->int_lat_tmr_min = BNXT_INT_LAT_TMR_MIN;
 336         /* buf timer set to 1/4 of interrupt timer */
 337         coal->cmpl_aggr_dma_tmr = BNXT_CMPL_AGGR_DMA_TMR;
 338         coal->cmpl_aggr_dma_tmr_during_int = BNXT_CMPL_AGGR_DMA_TMR_DURING_INT;
 339 }
 340
 341 static void bnxt_set_db(struct bnxt *bp,
 342                         struct bnxt_db_info *db,
 343                         uint32_t ring_type,
 344                         uint32_t map_idx,
 345                         uint32_t fid)
 346 {
 347         if (BNXT_CHIP_THOR(bp)) {
 348                 if (BNXT_PF(bp))
 349                         db->doorbell = (char *)bp->doorbell_base + 0x10000;
 350                 else
 351                         db->doorbell = (char *)bp->doorbell_base + 0x4000;
 352                 switch (ring_type) {
 353                 case HWRM_RING_ALLOC_INPUT_RING_TYPE_TX:
 354                         db->db_key64 = DBR_PATH_L2 | DBR_TYPE_SQ;
 355                         break;
 356                 case HWRM_RING_ALLOC_INPUT_RING_TYPE_RX:
 357                 case HWRM_RING_ALLOC_INPUT_RING_TYPE_RX_AGG:
 358                         db->db_key64 = DBR_PATH_L2 | DBR_TYPE_SRQ;
 359                         break;
 360                 case HWRM_RING_ALLOC_INPUT_RING_TYPE_L2_CMPL:
 361                         db->db_key64 = DBR_PATH_L2 | DBR_TYPE_CQ;
 362                         break;
 363                 case HWRM_RING_ALLOC_INPUT_RING_TYPE_NQ:
 364                         db->db_key64 = DBR_PATH_L2;
 365                         break;
 366                 }
 367                 db->db_key64 |= (uint64_t)fid << DBR_XID_SFT;
 368                 db->db_64 = true;
 369         } else {
 370                 db->doorbell = (char *)bp->doorbell_base + map_idx * 0x80;
 371                 switch (ring_type) {
 372                 case HWRM_RING_ALLOC_INPUT_RING_TYPE_TX:
 373                         db->db_key32 = DB_KEY_TX;
 374                         break;
 375                 case HWRM_RING_ALLOC_INPUT_RING_TYPE_RX:
 376                         db->db_key32 = DB_KEY_RX;
 377                         break;
 378                 case HWRM_RING_ALLOC_INPUT_RING_TYPE_L2_CMPL:
 379                         db->db_key32 = DB_KEY_CP;
 380                         break;
 381                 }
 382                 db->db_64 = false;
 383         }
 384 }
 385
 386 static int bnxt_alloc_cmpl_ring(struct bnxt *bp, int queue_index,
 387                                 struct bnxt_cp_ring_info *cpr)
 388 {
 389         struct bnxt_ring *cp_ring = cpr->cp_ring_struct;
 390         uint32_t nq_ring_id = HWRM_NA_SIGNATURE;
 391         int cp_ring_index = queue_index + BNXT_RX_VEC_START;
 392         struct bnxt_cp_ring_info *nqr = bp->rxtx_nq_ring;
 393         uint8_t ring_type;
 394         int rc = 0;
 395
 396         ring_type = HWRM_RING_ALLOC_INPUT_RING_TYPE_L2_CMPL;
 397
 398         if (BNXT_HAS_NQ(bp)) {
 399                 if (nqr) {
 400                         nq_ring_id = nqr->cp_ring_struct->fw_ring_id;
 401                 } else {
 402                         PMD_DRV_LOG(ERR, "NQ ring is NULL\n");
 403                         return -EINVAL;
 404                 }
 405         }
 406
 407         rc = bnxt_hwrm_ring_alloc(bp, cp_ring, ring_type, cp_ring_index,
 408                                   HWRM_NA_SIGNATURE, nq_ring_id, 0);
 409         if (rc)
 410                 return rc;
 411
 412         cpr->cp_cons = 0;
 413         bnxt_set_db(bp, &cpr->cp_db, ring_type, cp_ring_index,
 414                     cp_ring->fw_ring_id);
 415         bnxt_db_cq(cpr);
 416
 417         return 0;
 418 }
 419
 420 int bnxt_alloc_rxtx_nq_ring(struct bnxt *bp)
 421 {
 422         struct bnxt_cp_ring_info *nqr;
 423         struct bnxt_ring *ring;
 424         int ring_index = BNXT_NUM_ASYNC_CPR(bp);
 425         unsigned int socket_id;
 426         uint8_t ring_type;
 427         int rc = 0;
 428
 429         if (!BNXT_HAS_NQ(bp) || bp->rxtx_nq_ring)
 430                 return 0;
 431
 432         socket_id = rte_lcore_to_socket_id(rte_get_master_lcore());
 433
 434         nqr = rte_zmalloc_socket("nqr",
 435                                  sizeof(struct bnxt_cp_ring_info),
 436                                  RTE_CACHE_LINE_SIZE, socket_id);
 437         if (nqr == NULL)
 438                 return -ENOMEM;
 439
 440         ring = rte_zmalloc_socket("bnxt_cp_ring_struct",
 441                                   sizeof(struct bnxt_ring),
 442                                   RTE_CACHE_LINE_SIZE, socket_id);
 443         if (ring == NULL) {
 444                 rte_free(nqr);
 445                 return -ENOMEM;
 446         }
 447
 448         ring->bd = (void *)nqr->cp_desc_ring;
 449         ring->bd_dma = nqr->cp_desc_mapping;
 450         ring->ring_size = rte_align32pow2(DEFAULT_CP_RING_SIZE);
 451         ring->ring_mask = ring->ring_size - 1;
 452         ring->vmem_size = 0;
 453         ring->vmem = NULL;
 454
 455         nqr->cp_ring_struct = ring;
 456         rc = bnxt_alloc_rings(bp, 0, NULL, NULL, nqr, NULL, "l2_nqr");
 457         if (rc) {
 458                 rte_free(ring);
 459                 rte_free(nqr);
 460                 return -ENOMEM;
 461         }
 462
 463         ring_type = HWRM_RING_ALLOC_INPUT_RING_TYPE_NQ;
 464
 465         rc = bnxt_hwrm_ring_alloc(bp, ring, ring_type, ring_index,
 466                                   HWRM_NA_SIGNATURE, HWRM_NA_SIGNATURE, 0);
 467         if (rc) {
 468                 rte_free(ring);
 469                 rte_free(nqr);
 470                 return rc;
 471         }
 472
 473         bnxt_set_db(bp, &nqr->cp_db, ring_type, ring_index,
 474                     ring->fw_ring_id);
 475         bnxt_db_nq(nqr);
 476
 477         bp->rxtx_nq_ring = nqr;
 478
 479         return 0;
 480 }
 481
 482 /* Free RX/TX NQ ring.  */
 483 void bnxt_free_rxtx_nq_ring(struct bnxt *bp)
 484 {
 485         struct bnxt_cp_ring_info *nqr = bp->rxtx_nq_ring;
 486
 487         if (!nqr)
 488                 return;
 489
 490         bnxt_free_nq_ring(bp, nqr);
 491
 492         bnxt_free_ring(nqr->cp_ring_struct);
 493         rte_free(nqr->cp_ring_struct);
 494         nqr->cp_ring_struct = NULL;
 495         rte_free(nqr);
 496         bp->rxtx_nq_ring = NULL;
 497 }
 498
 499 static int bnxt_alloc_rx_ring(struct bnxt *bp, int queue_index)
 500 {
 501         struct bnxt_rx_queue *rxq = bp->rx_queues[queue_index];
 502         struct bnxt_cp_ring_info *cpr = rxq->cp_ring;
 503         struct bnxt_ring *cp_ring = cpr->cp_ring_struct;
 504         struct bnxt_rx_ring_info *rxr = rxq->rx_ring;
 505         struct bnxt_ring *ring = rxr->rx_ring_struct;
 506         uint8_t ring_type;
 507         int rc = 0;
 508
 509         ring_type = HWRM_RING_ALLOC_INPUT_RING_TYPE_RX;
 510
 511         rc = bnxt_hwrm_ring_alloc(bp, ring, ring_type,
 512                                   queue_index, cpr->hw_stats_ctx_id,
 513                                   cp_ring->fw_ring_id, 0);
 514         if (rc)
 515                 return rc;
 516
 517         rxr->rx_prod = 0;
 518         if (BNXT_HAS_RING_GRPS(bp))
 519                 bp->grp_info[queue_index].rx_fw_ring_id = ring->fw_ring_id;
 520         bnxt_set_db(bp, &rxr->rx_db, ring_type, queue_index, ring->fw_ring_id);
 521         bnxt_db_write(&rxr->rx_db, rxr->rx_prod);
 522
 523         return 0;
 524 }
 525
 526 static int bnxt_alloc_rx_agg_ring(struct bnxt *bp, int queue_index)
 527 {
 528         unsigned int map_idx = queue_index + bp->rx_cp_nr_rings;
 529         struct bnxt_rx_queue *rxq = bp->rx_queues[queue_index];
 530         struct bnxt_cp_ring_info *cpr = rxq->cp_ring;
 531         struct bnxt_ring *cp_ring = cpr->cp_ring_struct;
 532         struct bnxt_rx_ring_info *rxr = rxq->rx_ring;
 533         struct bnxt_ring *ring = rxr->ag_ring_struct;
 534         uint32_t hw_stats_ctx_id = HWRM_NA_SIGNATURE;
 535         uint8_t ring_type;
 536         int rc = 0;
 537
 538         ring->fw_rx_ring_id = rxr->rx_ring_struct->fw_ring_id;
 539
 540         if (BNXT_CHIP_THOR(bp)) {
 541                 ring_type = HWRM_RING_ALLOC_INPUT_RING_TYPE_RX_AGG;
 542                 hw_stats_ctx_id = cpr->hw_stats_ctx_id;
 543         } else {
 544                 ring_type = HWRM_RING_ALLOC_INPUT_RING_TYPE_RX;
 545         }
 546
 547         rc = bnxt_hwrm_ring_alloc(bp, ring, ring_type, map_idx,
 548                                   hw_stats_ctx_id, cp_ring->fw_ring_id, 0);
 549
 550         if (rc)
 551                 return rc;
 552
 553         rxr->ag_prod = 0;
 554         if (BNXT_HAS_RING_GRPS(bp))
 555                 bp->grp_info[queue_index].ag_fw_ring_id = ring->fw_ring_id;
 556         bnxt_set_db(bp, &rxr->ag_db, ring_type, map_idx, ring->fw_ring_id);
 557         bnxt_db_write(&rxr->ag_db, rxr->ag_prod);
 558
 559         return 0;
 560 }
 561
 562 int bnxt_alloc_hwrm_rx_ring(struct bnxt *bp, int queue_index)
 563 {
 564         struct bnxt_rx_queue *rxq = bp->rx_queues[queue_index];
 565         struct bnxt_cp_ring_info *cpr = rxq->cp_ring;
 566         struct bnxt_ring *cp_ring = cpr->cp_ring_struct;
 567         struct bnxt_rx_ring_info *rxr = rxq->rx_ring;
 568         int rc;
 569
 570         rc = bnxt_alloc_cmpl_ring(bp, queue_index, cpr);
 571         if (rc)
 572                 goto err_out;
 573
 574         if (BNXT_HAS_RING_GRPS(bp)) {
 575                 bp->grp_info[queue_index].fw_stats_ctx = cpr->hw_stats_ctx_id;
 576                 bp->grp_info[queue_index].cp_fw_ring_id = cp_ring->fw_ring_id;
 577         }
 578
 579         if (!BNXT_NUM_ASYNC_CPR(bp) && !queue_index) {
 580                 /*
 581                  * If a dedicated async event completion ring is not enabled,
 582                  * use the first completion ring from PF or VF as the default
 583                  * completion ring for async event handling.
 584                  */
 585                 bp->async_cp_ring = cpr;
 586                 rc = bnxt_hwrm_set_async_event_cr(bp);
 587                 if (rc)
 588                         goto err_out;
 589         }
 590
 591         rc = bnxt_alloc_rx_ring(bp, queue_index);
 592         if (rc)
 593                 goto err_out;
 594
 595         rc = bnxt_alloc_rx_agg_ring(bp, queue_index);
 596         if (rc)
 597                 goto err_out;
 598
 599         if (rxq->rx_started) {
 600                 if (bnxt_init_one_rx_ring(rxq)) {
 601                         PMD_DRV_LOG(ERR,
 602                                 "bnxt_init_one_rx_ring failed!\n");
 603                         bnxt_rx_queue_release_op(rxq);
 604                         rc = -ENOMEM;
 605                         goto err_out;
 606                 }
 607                 bnxt_db_write(&rxr->rx_db, rxr->rx_prod);
 608                 bnxt_db_write(&rxr->ag_db, rxr->ag_prod);
 609         }
 610         rxq->index = queue_index;
 611 #ifdef RTE_ARCH_X86
 612         bnxt_rxq_vec_setup(rxq);
 613 #endif
 614
 615         return 0;
 616
 617 err_out:
 618         PMD_DRV_LOG(ERR,
 619                     "Failed to allocate receive queue %d, rc %d.\n",
 620                     queue_index, rc);
 621         return rc;
 622 }
 623
 624 /* Initialise all rings to -1, its used to free rings later if allocation
 625  * of few rings fails.
 626  */
 627 static void bnxt_init_all_rings(struct bnxt *bp)
 628 {
 629         unsigned int i = 0;
 630         struct bnxt_rx_queue *rxq;
 631         struct bnxt_ring *cp_ring;
 632         struct bnxt_ring *ring;
 633         struct bnxt_rx_ring_info *rxr;
 634         struct bnxt_tx_queue *txq;
 635
 636         for (i = 0; i < bp->rx_cp_nr_rings; i++) {
 637                 rxq = bp->rx_queues[i];
 638                 /* Rx-compl */
 639                 cp_ring = rxq->cp_ring->cp_ring_struct;
 640                 cp_ring->fw_ring_id = INVALID_HW_RING_ID;
 641                 /* Rx-Reg */
 642                 rxr = rxq->rx_ring;
 643                 ring = rxr->rx_ring_struct;
 644                 ring->fw_ring_id = INVALID_HW_RING_ID;
 645                 /* Rx-AGG */
 646                 ring = rxr->ag_ring_struct;
 647                 ring->fw_ring_id = INVALID_HW_RING_ID;
 648         }
 649         for (i = 0; i < bp->tx_cp_nr_rings; i++) {
 650                 txq = bp->tx_queues[i];
 651                 /* Tx cmpl */
 652                 cp_ring = txq->cp_ring->cp_ring_struct;
 653                 cp_ring->fw_ring_id = INVALID_HW_RING_ID;
 654                 /*Tx Ring */
 655                 ring = txq->tx_ring->tx_ring_struct;
 656                 ring->fw_ring_id = INVALID_HW_RING_ID;
 657         }
 658 }
 659
 660 /* ring_grp usage:
 661  * [0] = default completion ring
 662  * [1 -> +rx_cp_nr_rings] = rx_cp, rx rings
 663  * [1+rx_cp_nr_rings + 1 -> +tx_cp_nr_rings] = tx_cp, tx rings
 664  */
 665 int bnxt_alloc_hwrm_rings(struct bnxt *bp)
 666 {
 667         struct bnxt_coal coal;
 668         unsigned int i;
 669         uint8_t ring_type;
 670         int rc = 0;
 671
 672         bnxt_init_dflt_coal(&coal);
 673         bnxt_init_all_rings(bp);
 674
 675         for (i = 0; i < bp->rx_cp_nr_rings; i++) {
 676                 struct bnxt_rx_queue *rxq = bp->rx_queues[i];
 677                 struct bnxt_cp_ring_info *cpr = rxq->cp_ring;
 678                 struct bnxt_ring *cp_ring = cpr->cp_ring_struct;
 679                 struct bnxt_rx_ring_info *rxr = rxq->rx_ring;
 680
 681                 if (bnxt_alloc_cmpl_ring(bp, i, cpr))
 682                         goto err_out;
 683
 684                 if (BNXT_HAS_RING_GRPS(bp)) {
 685                         bp->grp_info[i].fw_stats_ctx = cpr->hw_stats_ctx_id;
 686                         bp->grp_info[i].cp_fw_ring_id = cp_ring->fw_ring_id;
 687                 }
 688
 689                 bnxt_hwrm_set_ring_coal(bp, &coal, cp_ring->fw_ring_id);
 690                 if (!BNXT_NUM_ASYNC_CPR(bp) && !i) {
 691                         /*
 692                          * If a dedicated async event completion ring is not
 693                          * enabled, use the first completion ring as the default
 694                          * completion ring for async event handling.
 695                          */
 696                         bp->async_cp_ring = cpr;
 697                         rc = bnxt_hwrm_set_async_event_cr(bp);
 698                         if (rc)
 699                                 goto err_out;
 700                 }
 701
 702                 if (bnxt_alloc_rx_ring(bp, i))
 703                         goto err_out;
 704
 705                 if (bnxt_alloc_rx_agg_ring(bp, i))
 706                         goto err_out;
 707
 708                 if (bnxt_init_one_rx_ring(rxq)) {
 709                         PMD_DRV_LOG(ERR, "bnxt_init_one_rx_ring failed!\n");
 710                         bnxt_rx_queue_release_op(rxq);
 711                         return -ENOMEM;
 712                 }
 713                 bnxt_db_write(&rxr->rx_db, rxr->rx_prod);
 714                 bnxt_db_write(&rxr->ag_db, rxr->ag_prod);
 715                 rxq->index = i;
 716 #ifdef RTE_ARCH_X86
 717                 bnxt_rxq_vec_setup(rxq);
 718 #endif
 719         }
 720
 721         for (i = 0; i < bp->tx_cp_nr_rings; i++) {
 722                 struct bnxt_tx_queue *txq = bp->tx_queues[i];
 723                 struct bnxt_cp_ring_info *cpr = txq->cp_ring;
 724                 struct bnxt_ring *cp_ring = cpr->cp_ring_struct;
 725                 struct bnxt_tx_ring_info *txr = txq->tx_ring;
 726                 struct bnxt_ring *ring = txr->tx_ring_struct;
 727                 unsigned int idx = i + bp->rx_cp_nr_rings;
 728                 uint16_t tx_cosq_id = 0;
 729
 730                 if (bnxt_alloc_cmpl_ring(bp, idx, cpr))
 731                         goto err_out;
 732
 733                 if (bp->vnic_cap_flags & BNXT_VNIC_CAP_COS_CLASSIFY)
 734                         tx_cosq_id = bp->tx_cosq_id[i < bp->max_lltc ? i : 0];
 735                 else
 736                         tx_cosq_id = bp->tx_cosq_id[0];
 737                 /* Tx ring */
 738                 ring_type = HWRM_RING_ALLOC_INPUT_RING_TYPE_TX;
 739                 rc = bnxt_hwrm_ring_alloc(bp, ring,
 740                                           ring_type,
 741                                           i, cpr->hw_stats_ctx_id,
 742                                           cp_ring->fw_ring_id,
 743                                           tx_cosq_id);
 744                 if (rc)
 745                         goto err_out;
 746
 747                 bnxt_set_db(bp, &txr->tx_db, ring_type, i, ring->fw_ring_id);
 748                 txq->index = idx;
 749                 bnxt_hwrm_set_ring_coal(bp, &coal, cp_ring->fw_ring_id);
 750         }
 751
 752 err_out:
 753         return rc;
 754 }
 755
 756 /* Allocate dedicated async completion ring. */
 757 int bnxt_alloc_async_cp_ring(struct bnxt *bp)
 758 {
 759         struct bnxt_cp_ring_info *cpr = bp->async_cp_ring;
 760         struct bnxt_ring *cp_ring;
 761         uint8_t ring_type;
 762         int rc;
 763
 764         if (BNXT_NUM_ASYNC_CPR(bp) == 0 || cpr == NULL)
 765                 return 0;
 766
 767         cp_ring = cpr->cp_ring_struct;
 768
 769         if (BNXT_HAS_NQ(bp))
 770                 ring_type = HWRM_RING_ALLOC_INPUT_RING_TYPE_NQ;
 771         else
 772                 ring_type = HWRM_RING_ALLOC_INPUT_RING_TYPE_L2_CMPL;
 773
 774         rc = bnxt_hwrm_ring_alloc(bp, cp_ring, ring_type, 0,
 775                                   HWRM_NA_SIGNATURE, HWRM_NA_SIGNATURE, 0);
 776
 777         if (rc)
 778                 return rc;
 779
 780         cpr->cp_cons = 0;
 781         cpr->valid = 0;
 782         bnxt_set_db(bp, &cpr->cp_db, ring_type, 0,
 783                     cp_ring->fw_ring_id);
 784
 785         if (BNXT_HAS_NQ(bp))
 786                 bnxt_db_nq(cpr);
 787         else
 788                 bnxt_db_cq(cpr);
 789
 790         return bnxt_hwrm_set_async_event_cr(bp);
 791 }
 792
 793 /* Free dedicated async completion ring. */
 794 void bnxt_free_async_cp_ring(struct bnxt *bp)
 795 {
 796         struct bnxt_cp_ring_info *cpr = bp->async_cp_ring;
 797
 798         if (BNXT_NUM_ASYNC_CPR(bp) == 0 || cpr == NULL)
 799                 return;
 800
 801         if (BNXT_HAS_NQ(bp))
 802                 bnxt_free_nq_ring(bp, cpr);
 803         else
 804                 bnxt_free_cp_ring(bp, cpr);
 805
 806         bnxt_free_ring(cpr->cp_ring_struct);
 807         rte_free(cpr->cp_ring_struct);
 808         cpr->cp_ring_struct = NULL;
 809         rte_free(cpr);
 810         bp->async_cp_ring = NULL;
 811 }
 812
 813 int bnxt_alloc_async_ring_struct(struct bnxt *bp)
 814 {
 815         struct bnxt_cp_ring_info *cpr = NULL;
 816         struct bnxt_ring *ring = NULL;
 817         unsigned int socket_id;
 818
 819         if (BNXT_NUM_ASYNC_CPR(bp) == 0)
 820                 return 0;
 821
 822         socket_id = rte_lcore_to_socket_id(rte_get_master_lcore());
 823
 824         cpr = rte_zmalloc_socket("cpr",
 825                                  sizeof(struct bnxt_cp_ring_info),
 826                                  RTE_CACHE_LINE_SIZE, socket_id);
 827         if (cpr == NULL)
 828                 return -ENOMEM;
 829
 830         ring = rte_zmalloc_socket("bnxt_cp_ring_struct",
 831                                   sizeof(struct bnxt_ring),
 832                                   RTE_CACHE_LINE_SIZE, socket_id);
 833         if (ring == NULL) {
 834                 rte_free(cpr);
 835                 return -ENOMEM;
 836         }
 837
 838         ring->bd = (void *)cpr->cp_desc_ring;
 839         ring->bd_dma = cpr->cp_desc_mapping;
 840         ring->ring_size = rte_align32pow2(DEFAULT_CP_RING_SIZE);
 841         ring->ring_mask = ring->ring_size - 1;
 842         ring->vmem_size = 0;
 843         ring->vmem = NULL;
 844
 845         bp->async_cp_ring = cpr;
 846         cpr->cp_ring_struct = ring;
 847
 848         return bnxt_alloc_rings(bp, 0, NULL, NULL,
 849                                 bp->async_cp_ring, NULL,
 850                                 "def_cp");
 851 }