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_cpr.h"
  13 #include "bnxt_hwrm.h"
  14 #include "bnxt_ring.h"
  15 #include "bnxt_rxq.h"
  16 #include "bnxt_rxr.h"
  17 #include "bnxt_txq.h"
  18 #include "bnxt_txr.h"
  19
  20 #include "hsi_struct_def_dpdk.h"
  21
  22 /*
  23  * Generic ring handling
  24  */
  25
  26 void bnxt_free_ring(struct bnxt_ring *ring)
  27 {
  28         if (!ring)
  29                 return;
  30
  31         if (ring->vmem_size && *ring->vmem) {
  32                 memset((char *)*ring->vmem, 0, ring->vmem_size);
  33                 *ring->vmem = NULL;
  34         }
  35         ring->mem_zone = NULL;
  36 }
  37
  38 /*
  39  * Ring groups
  40  */
  41
  42 int bnxt_init_ring_grps(struct bnxt *bp)
  43 {
  44         unsigned int i;
  45
  46         for (i = 0; i < bp->max_ring_grps; i++)
  47                 memset(&bp->grp_info[i], (uint8_t)HWRM_NA_SIGNATURE,
  48                        sizeof(struct bnxt_ring_grp_info));
  49
  50         return 0;
  51 }
  52
  53 int bnxt_alloc_ring_grps(struct bnxt *bp)
  54 {
  55         if (bp->max_tx_rings == 0) {
  56                 PMD_DRV_LOG(ERR, "No TX rings available!\n");
  57                 return -EBUSY;
  58         }
  59
  60         /* THOR does not support ring groups.
  61          * But we will use the array to save RSS context IDs.
  62          */
  63         if (BNXT_CHIP_THOR(bp)) {
  64                 bp->max_ring_grps = BNXT_MAX_RSS_CTXTS_THOR;
  65         } else if (bp->max_ring_grps < bp->rx_cp_nr_rings) {
  66                 /* 1 ring is for default completion ring */
  67                 PMD_DRV_LOG(ERR, "Insufficient resource: Ring Group\n");
  68                 return -ENOSPC;
  69         }
  70
  71         if (BNXT_HAS_RING_GRPS(bp)) {
  72                 bp->grp_info = rte_zmalloc("bnxt_grp_info",
  73                                            sizeof(*bp->grp_info) *
  74                                            bp->max_ring_grps, 0);
  75                 if (!bp->grp_info) {
  76                         PMD_DRV_LOG(ERR,
  77                                     "Failed to alloc grp info tbl.\n");
  78                         return -ENOMEM;
  79                 }
  80         }
  81
  82         return 0;
  83 }
  84
  85 /*
  86  * Allocates a completion ring with vmem and stats optionally also allocating
  87  * a TX and/or RX ring.  Passing NULL as tx_ring_info and/or rx_ring_info
  88  * to not allocate them.
  89  *
  90  * Order in the allocation is:
  91  * stats - Always non-zero length
  92  * cp vmem - Always zero-length, supported for the bnxt_ring abstraction
  93  * tx vmem - Only non-zero length if tx_ring_info is not NULL
  94  * rx vmem - Only non-zero length if rx_ring_info is not NULL
  95  * cp bd ring - Always non-zero length
  96  * tx bd ring - Only non-zero length if tx_ring_info is not NULL
  97  * rx bd ring - Only non-zero length if rx_ring_info is not NULL
  98  */
  99 int bnxt_alloc_rings(struct bnxt *bp, uint16_t qidx,
 100                             struct bnxt_tx_queue *txq,
 101                             struct bnxt_rx_queue *rxq,
 102                             struct bnxt_cp_ring_info *cp_ring_info,
 103                             struct bnxt_cp_ring_info *nq_ring_info,
 104                             const char *suffix)
 105 {
 106         struct bnxt_ring *cp_ring = cp_ring_info->cp_ring_struct;
 107         struct bnxt_rx_ring_info *rx_ring_info = rxq ? rxq->rx_ring : NULL;
 108         struct bnxt_tx_ring_info *tx_ring_info = txq ? txq->tx_ring : NULL;
 109         struct bnxt_ring *tx_ring;
 110         struct bnxt_ring *rx_ring;
 111         struct rte_pci_device *pdev = bp->pdev;
 112         uint64_t rx_offloads = bp->eth_dev->data->dev_conf.rxmode.offloads;
 113         const struct rte_memzone *mz = NULL;
 114         char mz_name[RTE_MEMZONE_NAMESIZE];
 115         rte_iova_t mz_phys_addr_base;
 116         rte_iova_t mz_phys_addr;
 117         int sz;
 118
 119         int stats_len = (tx_ring_info || rx_ring_info) ?
 120             RTE_CACHE_LINE_ROUNDUP(sizeof(struct hwrm_stat_ctx_query_output) -
 121                                    sizeof (struct hwrm_resp_hdr)) : 0;
 122         stats_len = RTE_ALIGN(stats_len, 128);
 123
 124         int cp_vmem_start = stats_len;
 125         int cp_vmem_len = RTE_CACHE_LINE_ROUNDUP(cp_ring->vmem_size);
 126         cp_vmem_len = RTE_ALIGN(cp_vmem_len, 128);
 127
 128         int nq_vmem_len = nq_ring_info ?
 129                 RTE_CACHE_LINE_ROUNDUP(cp_ring->vmem_size) : 0;
 130         nq_vmem_len = RTE_ALIGN(nq_vmem_len, 128);
 131
 132         int nq_vmem_start = cp_vmem_start + cp_vmem_len;
 133
 134         int tx_vmem_start = nq_vmem_start + nq_vmem_len;
 135         int tx_vmem_len =
 136             tx_ring_info ? RTE_CACHE_LINE_ROUNDUP(tx_ring_info->
 137                                                 tx_ring_struct->vmem_size) : 0;
 138         tx_vmem_len = RTE_ALIGN(tx_vmem_len, 128);
 139
 140         int rx_vmem_start = tx_vmem_start + tx_vmem_len;
 141         int rx_vmem_len = rx_ring_info ?
 142                 RTE_CACHE_LINE_ROUNDUP(rx_ring_info->
 143                                                 rx_ring_struct->vmem_size) : 0;
 144         rx_vmem_len = RTE_ALIGN(rx_vmem_len, 128);
 145         int ag_vmem_start = 0;
 146         int ag_vmem_len = 0;
 147         int cp_ring_start =  0;
 148         int nq_ring_start = 0;
 149
 150         ag_vmem_start = rx_vmem_start + rx_vmem_len;
 151         ag_vmem_len = rx_ring_info ? RTE_CACHE_LINE_ROUNDUP(
 152                                 rx_ring_info->ag_ring_struct->vmem_size) : 0;
 153         cp_ring_start = ag_vmem_start + ag_vmem_len;
 154         cp_ring_start = RTE_ALIGN(cp_ring_start, 4096);
 155
 156         int cp_ring_len = RTE_CACHE_LINE_ROUNDUP(cp_ring->ring_size *
 157                                                  sizeof(struct cmpl_base));
 158         cp_ring_len = RTE_ALIGN(cp_ring_len, 128);
 159         nq_ring_start = cp_ring_start + cp_ring_len;
 160         nq_ring_start = RTE_ALIGN(nq_ring_start, 4096);
 161
 162         int nq_ring_len = nq_ring_info ? cp_ring_len : 0;
 163
 164         int tx_ring_start = nq_ring_start + nq_ring_len;
 165         tx_ring_start = RTE_ALIGN(tx_ring_start, 4096);
 166         int tx_ring_len = tx_ring_info ?
 167             RTE_CACHE_LINE_ROUNDUP(tx_ring_info->tx_ring_struct->ring_size *
 168                                    sizeof(struct tx_bd_long)) : 0;
 169         tx_ring_len = RTE_ALIGN(tx_ring_len, 4096);
 170
 171         int rx_ring_start = tx_ring_start + tx_ring_len;
 172         rx_ring_start = RTE_ALIGN(rx_ring_start, 4096);
 173         int rx_ring_len =  rx_ring_info ?
 174                 RTE_CACHE_LINE_ROUNDUP(rx_ring_info->rx_ring_struct->ring_size *
 175                 sizeof(struct rx_prod_pkt_bd)) : 0;
 176         rx_ring_len = RTE_ALIGN(rx_ring_len, 4096);
 177
 178         int ag_ring_start = rx_ring_start + rx_ring_len;
 179         ag_ring_start = RTE_ALIGN(ag_ring_start, 4096);
 180         int ag_ring_len = rx_ring_len * AGG_RING_SIZE_FACTOR;
 181         ag_ring_len = RTE_ALIGN(ag_ring_len, 4096);
 182
 183         int ag_bitmap_start = ag_ring_start + ag_ring_len;
 184         int ag_bitmap_len =  rx_ring_info ?
 185                 RTE_CACHE_LINE_ROUNDUP(rte_bitmap_get_memory_footprint(
 186                         rx_ring_info->rx_ring_struct->ring_size *
 187                         AGG_RING_SIZE_FACTOR)) : 0;
 188
 189         int tpa_info_start = ag_bitmap_start + ag_bitmap_len;
 190         int tpa_info_len = 0;
 191
 192         if (rx_ring_info && (rx_offloads & DEV_RX_OFFLOAD_TCP_LRO)) {
 193                 int tpa_max = BNXT_TPA_MAX_AGGS(bp);
 194
 195                 tpa_info_len = tpa_max * sizeof(struct bnxt_tpa_info);
 196                 tpa_info_len = RTE_CACHE_LINE_ROUNDUP(tpa_info_len);
 197         }
 198
 199         int total_alloc_len = tpa_info_start;
 200         total_alloc_len += tpa_info_len;
 201
 202         snprintf(mz_name, RTE_MEMZONE_NAMESIZE,
 203                  "bnxt_%04x:%02x:%02x:%02x-%04x_%s", pdev->addr.domain,
 204                  pdev->addr.bus, pdev->addr.devid, pdev->addr.function, qidx,
 205                  suffix);
 206         mz_name[RTE_MEMZONE_NAMESIZE - 1] = 0;
 207         mz = rte_memzone_lookup(mz_name);
 208         if (!mz) {
 209                 mz = rte_memzone_reserve_aligned(mz_name, total_alloc_len,
 210                                 SOCKET_ID_ANY,
 211                                 RTE_MEMZONE_2MB |
 212                                 RTE_MEMZONE_SIZE_HINT_ONLY |
 213                                 RTE_MEMZONE_IOVA_CONTIG,
 214                                 getpagesize());
 215                 if (mz == NULL)
 216                         return -ENOMEM;
 217         }
 218         memset(mz->addr, 0, mz->len);
 219         mz_phys_addr_base = mz->iova;
 220         mz_phys_addr = mz->iova;
 221         if ((unsigned long)mz->addr == mz_phys_addr_base) {
 222                 PMD_DRV_LOG(DEBUG,
 223                             "Memzone physical address same as virtual.\n");
 224                 PMD_DRV_LOG(DEBUG, "Using rte_mem_virt2iova()\n");
 225                 for (sz = 0; sz < total_alloc_len; sz += getpagesize())
 226                         rte_mem_lock_page(((char *)mz->addr) + sz);
 227                 mz_phys_addr_base = rte_mem_virt2iova(mz->addr);
 228                 mz_phys_addr = rte_mem_virt2iova(mz->addr);
 229                 if (mz_phys_addr == RTE_BAD_IOVA) {
 230                         PMD_DRV_LOG(ERR,
 231                         "unable to map ring address to physical memory\n");
 232                         return -ENOMEM;
 233                 }
 234         }
 235
 236         if (tx_ring_info) {
 237                 txq->mz = mz;
 238                 tx_ring = tx_ring_info->tx_ring_struct;
 239
 240                 tx_ring->bd = ((char *)mz->addr + tx_ring_start);
 241                 tx_ring_info->tx_desc_ring = (struct tx_bd_long *)tx_ring->bd;
 242                 tx_ring->bd_dma = mz_phys_addr + tx_ring_start;
 243                 tx_ring_info->tx_desc_mapping = tx_ring->bd_dma;
 244                 tx_ring->mem_zone = (const void *)mz;
 245
 246                 if (!tx_ring->bd)
 247                         return -ENOMEM;
 248                 if (tx_ring->vmem_size) {
 249                         tx_ring->vmem =
 250                             (void **)((char *)mz->addr + tx_vmem_start);
 251                         tx_ring_info->tx_buf_ring =
 252                             (struct bnxt_sw_tx_bd *)tx_ring->vmem;
 253                 }
 254         }
 255
 256         if (rx_ring_info) {
 257                 rxq->mz = mz;
 258                 rx_ring = rx_ring_info->rx_ring_struct;
 259
 260                 rx_ring->bd = ((char *)mz->addr + rx_ring_start);
 261                 rx_ring_info->rx_desc_ring =
 262                     (struct rx_prod_pkt_bd *)rx_ring->bd;
 263                 rx_ring->bd_dma = mz_phys_addr + rx_ring_start;
 264                 rx_ring_info->rx_desc_mapping = rx_ring->bd_dma;
 265                 rx_ring->mem_zone = (const void *)mz;
 266
 267                 if (!rx_ring->bd)
 268                         return -ENOMEM;
 269                 if (rx_ring->vmem_size) {
 270                         rx_ring->vmem =
 271                             (void **)((char *)mz->addr + rx_vmem_start);
 272                         rx_ring_info->rx_buf_ring =
 273                             (struct bnxt_sw_rx_bd *)rx_ring->vmem;
 274                 }
 275
 276                 rx_ring = rx_ring_info->ag_ring_struct;
 277
 278                 rx_ring->bd = ((char *)mz->addr + ag_ring_start);
 279                 rx_ring_info->ag_desc_ring =
 280                     (struct rx_prod_pkt_bd *)rx_ring->bd;
 281                 rx_ring->bd_dma = mz->iova + ag_ring_start;
 282                 rx_ring_info->ag_desc_mapping = rx_ring->bd_dma;
 283                 rx_ring->mem_zone = (const void *)mz;
 284
 285                 if (!rx_ring->bd)
 286                         return -ENOMEM;
 287                 if (rx_ring->vmem_size) {
 288                         rx_ring->vmem =
 289                             (void **)((char *)mz->addr + ag_vmem_start);
 290                         rx_ring_info->ag_buf_ring =
 291                             (struct bnxt_sw_rx_bd *)rx_ring->vmem;
 292                 }
 293
 294                 rx_ring_info->ag_bitmap =
 295                     rte_bitmap_init(rx_ring_info->rx_ring_struct->ring_size *
 296                                     AGG_RING_SIZE_FACTOR, (uint8_t *)mz->addr +
 297                                     ag_bitmap_start, ag_bitmap_len);
 298
 299                 /* TPA info */
 300                 if (rx_offloads & DEV_RX_OFFLOAD_TCP_LRO)
 301                         rx_ring_info->tpa_info =
 302                                 ((struct bnxt_tpa_info *)((char *)mz->addr +
 303                                                           tpa_info_start));
 304         }
 305
 306         cp_ring->bd = ((char *)mz->addr + cp_ring_start);
 307         cp_ring->bd_dma = mz_phys_addr + cp_ring_start;
 308         cp_ring_info->cp_desc_ring = cp_ring->bd;
 309         cp_ring_info->cp_desc_mapping = cp_ring->bd_dma;
 310         cp_ring->mem_zone = (const void *)mz;
 311
 312         if (!cp_ring->bd)
 313                 return -ENOMEM;
 314         if (cp_ring->vmem_size)
 315                 *cp_ring->vmem = ((char *)mz->addr + stats_len);
 316         if (stats_len) {
 317                 cp_ring_info->hw_stats = mz->addr;
 318                 cp_ring_info->hw_stats_map = mz_phys_addr;
 319         }
 320         cp_ring_info->hw_stats_ctx_id = HWRM_NA_SIGNATURE;
 321
 322         if (nq_ring_info) {
 323                 struct bnxt_ring *nq_ring = nq_ring_info->cp_ring_struct;
 324
 325                 nq_ring->bd = (char *)mz->addr + nq_ring_start;
 326                 nq_ring->bd_dma = mz_phys_addr + nq_ring_start;
 327                 nq_ring_info->cp_desc_ring = nq_ring->bd;
 328                 nq_ring_info->cp_desc_mapping = nq_ring->bd_dma;
 329                 nq_ring->mem_zone = (const void *)mz;
 330
 331                 if (!nq_ring->bd)
 332                         return -ENOMEM;
 333                 if (nq_ring->vmem_size)
 334                         *nq_ring->vmem = (char *)mz->addr + nq_vmem_start;
 335
 336                 nq_ring_info->hw_stats_ctx_id = HWRM_NA_SIGNATURE;
 337         }
 338
 339         return 0;
 340 }
 341
 342 static void bnxt_init_dflt_coal(struct bnxt_coal *coal)
 343 {
 344         /* Tick values in micro seconds.
 345          * 1 coal_buf x bufs_per_record = 1 completion record.
 346          */
 347         coal->num_cmpl_aggr_int = BNXT_NUM_CMPL_AGGR_INT;
 348         /* This is a 6-bit value and must not be 0, or we'll get non stop IRQ */
 349         coal->num_cmpl_dma_aggr = BNXT_NUM_CMPL_DMA_AGGR;
 350         /* This is a 6-bit value and must not be 0, or we'll get non stop IRQ */
 351         coal->num_cmpl_dma_aggr_during_int = BNXT_NUM_CMPL_DMA_AGGR_DURING_INT;
 352         coal->int_lat_tmr_max = BNXT_INT_LAT_TMR_MAX;
 353         /* min timer set to 1/2 of interrupt timer */
 354         coal->int_lat_tmr_min = BNXT_INT_LAT_TMR_MIN;
 355         /* buf timer set to 1/4 of interrupt timer */
 356         coal->cmpl_aggr_dma_tmr = BNXT_CMPL_AGGR_DMA_TMR;
 357         coal->cmpl_aggr_dma_tmr_during_int = BNXT_CMPL_AGGR_DMA_TMR_DURING_INT;
 358 }
 359
 360 static void bnxt_set_db(struct bnxt *bp,
 361                         struct bnxt_db_info *db,
 362                         uint32_t ring_type,
 363                         uint32_t map_idx,
 364                         uint32_t fid)
 365 {
 366         if (BNXT_CHIP_THOR(bp)) {
 367                 if (BNXT_PF(bp))
 368                         db->doorbell = (char *)bp->doorbell_base + 0x10000;
 369                 else
 370                         db->doorbell = (char *)bp->doorbell_base + 0x4000;
 371                 switch (ring_type) {
 372                 case HWRM_RING_ALLOC_INPUT_RING_TYPE_TX:
 373                         db->db_key64 = DBR_PATH_L2 | DBR_TYPE_SQ;
 374                         break;
 375                 case HWRM_RING_ALLOC_INPUT_RING_TYPE_RX:
 376                 case HWRM_RING_ALLOC_INPUT_RING_TYPE_RX_AGG:
 377                         db->db_key64 = DBR_PATH_L2 | DBR_TYPE_SRQ;
 378                         break;
 379                 case HWRM_RING_ALLOC_INPUT_RING_TYPE_L2_CMPL:
 380                         db->db_key64 = DBR_PATH_L2 | DBR_TYPE_CQ;
 381                         break;
 382                 case HWRM_RING_ALLOC_INPUT_RING_TYPE_NQ:
 383                         db->db_key64 = DBR_PATH_L2;
 384                         break;
 385                 }
 386                 db->db_key64 |= (uint64_t)fid << DBR_XID_SFT;
 387                 db->db_64 = true;
 388         } else {
 389                 db->doorbell = (char *)bp->doorbell_base + map_idx * 0x80;
 390                 switch (ring_type) {
 391                 case HWRM_RING_ALLOC_INPUT_RING_TYPE_TX:
 392                         db->db_key32 = DB_KEY_TX;
 393                         break;
 394                 case HWRM_RING_ALLOC_INPUT_RING_TYPE_RX:
 395                         db->db_key32 = DB_KEY_RX;
 396                         break;
 397                 case HWRM_RING_ALLOC_INPUT_RING_TYPE_L2_CMPL:
 398                         db->db_key32 = DB_KEY_CP;
 399                         break;
 400                 }
 401                 db->db_64 = false;
 402         }
 403 }
 404
 405 static int bnxt_alloc_cmpl_ring(struct bnxt *bp, int queue_index,
 406                                 struct bnxt_cp_ring_info *cpr)
 407 {
 408         struct bnxt_ring *cp_ring = cpr->cp_ring_struct;
 409         uint32_t nq_ring_id = HWRM_NA_SIGNATURE;
 410         int cp_ring_index = queue_index + BNXT_NUM_ASYNC_CPR(bp);
 411         struct bnxt_cp_ring_info *nqr = bp->rxtx_nq_ring;
 412         uint8_t ring_type;
 413         int rc = 0;
 414
 415         ring_type = HWRM_RING_ALLOC_INPUT_RING_TYPE_L2_CMPL;
 416
 417         if (BNXT_HAS_NQ(bp)) {
 418                 if (nqr) {
 419                         nq_ring_id = nqr->cp_ring_struct->fw_ring_id;
 420                 } else {
 421                         PMD_DRV_LOG(ERR, "NQ ring is NULL\n");
 422                         return -EINVAL;
 423                 }
 424         }
 425
 426         rc = bnxt_hwrm_ring_alloc(bp, cp_ring, ring_type, cp_ring_index,
 427                                   HWRM_NA_SIGNATURE, nq_ring_id, 0);
 428         if (rc)
 429                 return rc;
 430
 431         cpr->cp_cons = 0;
 432         bnxt_set_db(bp, &cpr->cp_db, ring_type, cp_ring_index,
 433                     cp_ring->fw_ring_id);
 434         bnxt_db_cq(cpr);
 435
 436         return 0;
 437 }
 438
 439 int bnxt_alloc_rxtx_nq_ring(struct bnxt *bp)
 440 {
 441         struct bnxt_cp_ring_info *nqr;
 442         struct bnxt_ring *ring;
 443         int ring_index = BNXT_NUM_ASYNC_CPR(bp);
 444         unsigned int socket_id;
 445         uint8_t ring_type;
 446         int rc = 0;
 447
 448         if (!BNXT_HAS_NQ(bp) || bp->rxtx_nq_ring)
 449                 return 0;
 450
 451         socket_id = rte_lcore_to_socket_id(rte_get_master_lcore());
 452
 453         nqr = rte_zmalloc_socket("nqr",
 454                                  sizeof(struct bnxt_cp_ring_info),
 455                                  RTE_CACHE_LINE_SIZE, socket_id);
 456         if (nqr == NULL)
 457                 return -ENOMEM;
 458
 459         ring = rte_zmalloc_socket("bnxt_cp_ring_struct",
 460                                   sizeof(struct bnxt_ring),
 461                                   RTE_CACHE_LINE_SIZE, socket_id);
 462         if (ring == NULL) {
 463                 rte_free(nqr);
 464                 return -ENOMEM;
 465         }
 466
 467         ring->bd = (void *)nqr->cp_desc_ring;
 468         ring->bd_dma = nqr->cp_desc_mapping;
 469         ring->ring_size = rte_align32pow2(DEFAULT_CP_RING_SIZE);
 470         ring->ring_mask = ring->ring_size - 1;
 471         ring->vmem_size = 0;
 472         ring->vmem = NULL;
 473
 474         nqr->cp_ring_struct = ring;
 475         rc = bnxt_alloc_rings(bp, 0, NULL, NULL, nqr, NULL, "l2_nqr");
 476         if (rc) {
 477                 rte_free(ring);
 478                 rte_free(nqr);
 479                 return -ENOMEM;
 480         }
 481
 482         ring_type = HWRM_RING_ALLOC_INPUT_RING_TYPE_NQ;
 483
 484         rc = bnxt_hwrm_ring_alloc(bp, ring, ring_type, ring_index,
 485                                   HWRM_NA_SIGNATURE, HWRM_NA_SIGNATURE, 0);
 486         if (rc) {
 487                 rte_free(ring);
 488                 rte_free(nqr);
 489                 return rc;
 490         }
 491
 492         bnxt_set_db(bp, &nqr->cp_db, ring_type, ring_index,
 493                     ring->fw_ring_id);
 494         bnxt_db_nq(nqr);
 495
 496         bp->rxtx_nq_ring = nqr;
 497
 498         return 0;
 499 }
 500
 501 /* Free RX/TX NQ ring.  */
 502 void bnxt_free_rxtx_nq_ring(struct bnxt *bp)
 503 {
 504         struct bnxt_cp_ring_info *nqr = bp->rxtx_nq_ring;
 505
 506         if (!nqr)
 507                 return;
 508
 509         bnxt_free_nq_ring(bp, nqr);
 510
 511         bnxt_free_ring(nqr->cp_ring_struct);
 512         rte_free(nqr->cp_ring_struct);
 513         nqr->cp_ring_struct = NULL;
 514         rte_free(nqr);
 515         bp->rxtx_nq_ring = NULL;
 516 }
 517
 518 static int bnxt_alloc_rx_ring(struct bnxt *bp, int queue_index)
 519 {
 520         struct bnxt_rx_queue *rxq = bp->rx_queues[queue_index];
 521         struct bnxt_cp_ring_info *cpr = rxq->cp_ring;
 522         struct bnxt_ring *cp_ring = cpr->cp_ring_struct;
 523         struct bnxt_rx_ring_info *rxr = rxq->rx_ring;
 524         struct bnxt_ring *ring = rxr->rx_ring_struct;
 525         uint8_t ring_type;
 526         int rc = 0;
 527
 528         ring_type = HWRM_RING_ALLOC_INPUT_RING_TYPE_RX;
 529
 530         rc = bnxt_hwrm_ring_alloc(bp, ring, ring_type,
 531                                   queue_index, cpr->hw_stats_ctx_id,
 532                                   cp_ring->fw_ring_id, 0);
 533         if (rc)
 534                 return rc;
 535
 536         rxr->rx_prod = 0;
 537         if (BNXT_HAS_RING_GRPS(bp))
 538                 bp->grp_info[queue_index].rx_fw_ring_id = ring->fw_ring_id;
 539         bnxt_set_db(bp, &rxr->rx_db, ring_type, queue_index, ring->fw_ring_id);
 540         bnxt_db_write(&rxr->rx_db, rxr->rx_prod);
 541
 542         return 0;
 543 }
 544
 545 static int bnxt_alloc_rx_agg_ring(struct bnxt *bp, int queue_index)
 546 {
 547         unsigned int map_idx = queue_index + bp->rx_cp_nr_rings;
 548         struct bnxt_rx_queue *rxq = bp->rx_queues[queue_index];
 549         struct bnxt_cp_ring_info *cpr = rxq->cp_ring;
 550         struct bnxt_ring *cp_ring = cpr->cp_ring_struct;
 551         struct bnxt_rx_ring_info *rxr = rxq->rx_ring;
 552         struct bnxt_ring *ring = rxr->ag_ring_struct;
 553         uint32_t hw_stats_ctx_id = HWRM_NA_SIGNATURE;
 554         uint8_t ring_type;
 555         int rc = 0;
 556
 557         ring->fw_rx_ring_id = rxr->rx_ring_struct->fw_ring_id;
 558
 559         if (BNXT_CHIP_THOR(bp)) {
 560                 ring_type = HWRM_RING_ALLOC_INPUT_RING_TYPE_RX_AGG;
 561                 hw_stats_ctx_id = cpr->hw_stats_ctx_id;
 562         } else {
 563                 ring_type = HWRM_RING_ALLOC_INPUT_RING_TYPE_RX;
 564         }
 565
 566         rc = bnxt_hwrm_ring_alloc(bp, ring, ring_type, map_idx,
 567                                   hw_stats_ctx_id, cp_ring->fw_ring_id, 0);
 568
 569         if (rc)
 570                 return rc;
 571
 572         rxr->ag_prod = 0;
 573         if (BNXT_HAS_RING_GRPS(bp))
 574                 bp->grp_info[queue_index].ag_fw_ring_id = ring->fw_ring_id;
 575         bnxt_set_db(bp, &rxr->ag_db, ring_type, map_idx, ring->fw_ring_id);
 576         bnxt_db_write(&rxr->ag_db, rxr->ag_prod);
 577
 578         return 0;
 579 }
 580
 581 int bnxt_alloc_hwrm_rx_ring(struct bnxt *bp, int queue_index)
 582 {
 583         struct bnxt_rx_queue *rxq = bp->rx_queues[queue_index];
 584         struct bnxt_cp_ring_info *cpr = rxq->cp_ring;
 585         struct bnxt_ring *cp_ring = cpr->cp_ring_struct;
 586         struct bnxt_rx_ring_info *rxr = rxq->rx_ring;
 587         int rc;
 588
 589         rc = bnxt_alloc_cmpl_ring(bp, queue_index, cpr);
 590         if (rc)
 591                 goto err_out;
 592
 593         if (BNXT_HAS_RING_GRPS(bp)) {
 594                 bp->grp_info[queue_index].fw_stats_ctx = cpr->hw_stats_ctx_id;
 595                 bp->grp_info[queue_index].cp_fw_ring_id = cp_ring->fw_ring_id;
 596         }
 597
 598         if (!BNXT_NUM_ASYNC_CPR(bp) && !queue_index) {
 599                 /*
 600                  * If a dedicated async event completion ring is not enabled,
 601                  * use the first completion ring from PF or VF as the default
 602                  * completion ring for async event handling.
 603                  */
 604                 bp->async_cp_ring = cpr;
 605                 rc = bnxt_hwrm_set_async_event_cr(bp);
 606                 if (rc)
 607                         goto err_out;
 608         }
 609
 610         rc = bnxt_alloc_rx_ring(bp, queue_index);
 611         if (rc)
 612                 goto err_out;
 613
 614         rc = bnxt_alloc_rx_agg_ring(bp, queue_index);
 615         if (rc)
 616                 goto err_out;
 617
 618         if (rxq->rx_started) {
 619                 if (bnxt_init_one_rx_ring(rxq)) {
 620                         RTE_LOG(ERR, PMD,
 621                                 "bnxt_init_one_rx_ring failed!\n");
 622                         bnxt_rx_queue_release_op(rxq);
 623                         rc = -ENOMEM;
 624                         goto err_out;
 625                 }
 626                 bnxt_db_write(&rxr->rx_db, rxr->rx_prod);
 627                 bnxt_db_write(&rxr->ag_db, rxr->ag_prod);
 628         }
 629         rxq->index = queue_index;
 630
 631         return 0;
 632
 633 err_out:
 634         PMD_DRV_LOG(ERR,
 635                     "Failed to allocate receive queue %d, rc %d.\n",
 636                     queue_index, rc);
 637         return rc;
 638 }
 639
 640 /* Initialise all rings to -1, its used to free rings later if allocation
 641  * of few rings fails.
 642  */
 643 static void bnxt_init_all_rings(struct bnxt *bp)
 644 {
 645         unsigned int i = 0;
 646         struct bnxt_rx_queue *rxq;
 647         struct bnxt_ring *cp_ring;
 648         struct bnxt_ring *ring;
 649         struct bnxt_rx_ring_info *rxr;
 650         struct bnxt_tx_queue *txq;
 651
 652         for (i = 0; i < bp->rx_cp_nr_rings; i++) {
 653                 rxq = bp->rx_queues[i];
 654                 /* Rx-compl */
 655                 cp_ring = rxq->cp_ring->cp_ring_struct;
 656                 cp_ring->fw_ring_id = INVALID_HW_RING_ID;
 657                 /* Rx-Reg */
 658                 rxr = rxq->rx_ring;
 659                 ring = rxr->rx_ring_struct;
 660                 ring->fw_ring_id = INVALID_HW_RING_ID;
 661                 /* Rx-AGG */
 662                 ring = rxr->ag_ring_struct;
 663                 ring->fw_ring_id = INVALID_HW_RING_ID;
 664         }
 665         for (i = 0; i < bp->tx_cp_nr_rings; i++) {
 666                 txq = bp->tx_queues[i];
 667                 /* Tx cmpl */
 668                 cp_ring = txq->cp_ring->cp_ring_struct;
 669                 cp_ring->fw_ring_id = INVALID_HW_RING_ID;
 670                 /*Tx Ring */
 671                 ring = txq->tx_ring->tx_ring_struct;
 672                 ring->fw_ring_id = INVALID_HW_RING_ID;
 673         }
 674 }
 675
 676 /* ring_grp usage:
 677  * [0] = default completion ring
 678  * [1 -> +rx_cp_nr_rings] = rx_cp, rx rings
 679  * [1+rx_cp_nr_rings + 1 -> +tx_cp_nr_rings] = tx_cp, tx rings
 680  */
 681 int bnxt_alloc_hwrm_rings(struct bnxt *bp)
 682 {
 683         struct bnxt_coal coal;
 684         unsigned int i;
 685         uint8_t ring_type;
 686         int rc = 0;
 687
 688         bnxt_init_dflt_coal(&coal);
 689         bnxt_init_all_rings(bp);
 690
 691         for (i = 0; i < bp->rx_cp_nr_rings; i++) {
 692                 struct bnxt_rx_queue *rxq = bp->rx_queues[i];
 693                 struct bnxt_cp_ring_info *cpr = rxq->cp_ring;
 694                 struct bnxt_ring *cp_ring = cpr->cp_ring_struct;
 695                 struct bnxt_rx_ring_info *rxr = rxq->rx_ring;
 696
 697                 if (bnxt_alloc_cmpl_ring(bp, i, cpr))
 698                         goto err_out;
 699
 700                 if (BNXT_HAS_RING_GRPS(bp)) {
 701                         bp->grp_info[i].fw_stats_ctx = cpr->hw_stats_ctx_id;
 702                         bp->grp_info[i].cp_fw_ring_id = cp_ring->fw_ring_id;
 703                 }
 704
 705                 bnxt_hwrm_set_ring_coal(bp, &coal, cp_ring->fw_ring_id);
 706                 if (!BNXT_NUM_ASYNC_CPR(bp) && !i) {
 707                         /*
 708                          * If a dedicated async event completion ring is not
 709                          * enabled, use the first completion ring as the default
 710                          * completion ring for async event handling.
 711                          */
 712                         bp->async_cp_ring = cpr;
 713                         rc = bnxt_hwrm_set_async_event_cr(bp);
 714                         if (rc)
 715                                 goto err_out;
 716                 }
 717
 718                 if (bnxt_alloc_rx_ring(bp, i))
 719                         goto err_out;
 720
 721                 if (bnxt_alloc_rx_agg_ring(bp, i))
 722                         goto err_out;
 723
 724                 if (bnxt_init_one_rx_ring(rxq)) {
 725                         PMD_DRV_LOG(ERR, "bnxt_init_one_rx_ring failed!\n");
 726                         bnxt_rx_queue_release_op(rxq);
 727                         return -ENOMEM;
 728                 }
 729                 bnxt_db_write(&rxr->rx_db, rxr->rx_prod);
 730                 bnxt_db_write(&rxr->ag_db, rxr->ag_prod);
 731                 rxq->index = i;
 732 #ifdef RTE_ARCH_X86
 733                 bnxt_rxq_vec_setup(rxq);
 734 #endif
 735         }
 736
 737         for (i = 0; i < bp->tx_cp_nr_rings; i++) {
 738                 struct bnxt_tx_queue *txq = bp->tx_queues[i];
 739                 struct bnxt_cp_ring_info *cpr = txq->cp_ring;
 740                 struct bnxt_ring *cp_ring = cpr->cp_ring_struct;
 741                 struct bnxt_tx_ring_info *txr = txq->tx_ring;
 742                 struct bnxt_ring *ring = txr->tx_ring_struct;
 743                 unsigned int idx = i + bp->rx_cp_nr_rings;
 744                 uint16_t tx_cosq_id = 0;
 745
 746                 if (bnxt_alloc_cmpl_ring(bp, idx, cpr))
 747                         goto err_out;
 748
 749                 if (bp->vnic_cap_flags & BNXT_VNIC_CAP_COS_CLASSIFY)
 750                         tx_cosq_id = bp->tx_cosq_id[i < bp->max_lltc ? i : 0];
 751                 else
 752                         tx_cosq_id = bp->tx_cosq_id[0];
 753                 /* Tx ring */
 754                 ring_type = HWRM_RING_ALLOC_INPUT_RING_TYPE_TX;
 755                 rc = bnxt_hwrm_ring_alloc(bp, ring,
 756                                           ring_type,
 757                                           i, cpr->hw_stats_ctx_id,
 758                                           cp_ring->fw_ring_id,
 759                                           tx_cosq_id);
 760                 if (rc)
 761                         goto err_out;
 762
 763                 bnxt_set_db(bp, &txr->tx_db, ring_type, i, ring->fw_ring_id);
 764                 txq->index = idx;
 765                 bnxt_hwrm_set_ring_coal(bp, &coal, cp_ring->fw_ring_id);
 766         }
 767
 768 err_out:
 769         return rc;
 770 }
 771
 772 /* Allocate dedicated async completion ring. */
 773 int bnxt_alloc_async_cp_ring(struct bnxt *bp)
 774 {
 775         struct bnxt_cp_ring_info *cpr = bp->async_cp_ring;
 776         struct bnxt_ring *cp_ring;
 777         uint8_t ring_type;
 778         int rc;
 779
 780         if (BNXT_NUM_ASYNC_CPR(bp) == 0 || cpr == NULL)
 781                 return 0;
 782
 783         cp_ring = cpr->cp_ring_struct;
 784
 785         if (BNXT_HAS_NQ(bp))
 786                 ring_type = HWRM_RING_ALLOC_INPUT_RING_TYPE_NQ;
 787         else
 788                 ring_type = HWRM_RING_ALLOC_INPUT_RING_TYPE_L2_CMPL;
 789
 790         rc = bnxt_hwrm_ring_alloc(bp, cp_ring, ring_type, 0,
 791                                   HWRM_NA_SIGNATURE, HWRM_NA_SIGNATURE, 0);
 792
 793         if (rc)
 794                 return rc;
 795
 796         cpr->cp_cons = 0;
 797         cpr->valid = 0;
 798         bnxt_set_db(bp, &cpr->cp_db, ring_type, 0,
 799                     cp_ring->fw_ring_id);
 800
 801         if (BNXT_HAS_NQ(bp))
 802                 bnxt_db_nq(cpr);
 803         else
 804                 bnxt_db_cq(cpr);
 805
 806         return bnxt_hwrm_set_async_event_cr(bp);
 807 }
 808
 809 /* Free dedicated async completion ring. */
 810 void bnxt_free_async_cp_ring(struct bnxt *bp)
 811 {
 812         struct bnxt_cp_ring_info *cpr = bp->async_cp_ring;
 813
 814         if (BNXT_NUM_ASYNC_CPR(bp) == 0 || cpr == NULL)
 815                 return;
 816
 817         if (BNXT_HAS_NQ(bp))
 818                 bnxt_free_nq_ring(bp, cpr);
 819         else
 820                 bnxt_free_cp_ring(bp, cpr);
 821
 822         bnxt_free_ring(cpr->cp_ring_struct);
 823         rte_free(cpr->cp_ring_struct);
 824         cpr->cp_ring_struct = NULL;
 825         rte_free(cpr);
 826         bp->async_cp_ring = NULL;
 827 }
 828
 829 int bnxt_alloc_async_ring_struct(struct bnxt *bp)
 830 {
 831         struct bnxt_cp_ring_info *cpr = NULL;
 832         struct bnxt_ring *ring = NULL;
 833         unsigned int socket_id;
 834
 835         if (BNXT_NUM_ASYNC_CPR(bp) == 0)
 836                 return 0;
 837
 838         socket_id = rte_lcore_to_socket_id(rte_get_master_lcore());
 839
 840         cpr = rte_zmalloc_socket("cpr",
 841                                  sizeof(struct bnxt_cp_ring_info),
 842                                  RTE_CACHE_LINE_SIZE, socket_id);
 843         if (cpr == NULL)
 844                 return -ENOMEM;
 845
 846         ring = rte_zmalloc_socket("bnxt_cp_ring_struct",
 847                                   sizeof(struct bnxt_ring),
 848                                   RTE_CACHE_LINE_SIZE, socket_id);
 849         if (ring == NULL) {
 850                 rte_free(cpr);
 851                 return -ENOMEM;
 852         }
 853
 854         ring->bd = (void *)cpr->cp_desc_ring;
 855         ring->bd_dma = cpr->cp_desc_mapping;
 856         ring->ring_size = rte_align32pow2(DEFAULT_CP_RING_SIZE);
 857         ring->ring_mask = ring->ring_size - 1;
 858         ring->vmem_size = 0;
 859         ring->vmem = NULL;
 860
 861         bp->async_cp_ring = cpr;
 862         cpr->cp_ring_struct = ring;
 863
 864         return bnxt_alloc_rings(bp, 0, NULL, NULL,
 865                                 bp->async_cp_ring, NULL,
 866                                 "def_cp");
 867 }