drivers/net/bnxt/bnxt_ring.h

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2014-2018 Broadcom
   3  * All rights reserved.
   4  */
   5
   6 #ifndef _BNXT_RING_H_
   7 #define _BNXT_RING_H_
   8
   9 #include <inttypes.h>
  10
  11 #include <rte_memory.h>
  12
  13 #define RING_NEXT(ring, idx)            (((idx) + 1) & (ring)->ring_mask)
  14
  15 #define DB_IDX_MASK                                             0xffffff
  16 #define DB_IDX_VALID                                            (0x1 << 26)
  17 #define DB_IRQ_DIS                                              (0x1 << 27)
  18 #define DB_KEY_TX                                               (0x0 << 28)
  19 #define DB_KEY_RX                                               (0x1 << 28)
  20 #define DB_KEY_CP                                               (0x2 << 28)
  21 #define DB_KEY_ST                                               (0x3 << 28)
  22 #define DB_KEY_TX_PUSH                                          (0x4 << 28)
  23 #define DB_LONG_TX_PUSH                                         (0x2 << 24)
  24
  25 #define DEFAULT_CP_RING_SIZE    256
  26 #define DEFAULT_RX_RING_SIZE    256
  27 #define DEFAULT_TX_RING_SIZE    256
  28
  29 #define BNXT_TPA_MAX            64
  30 #define AGG_RING_SIZE_FACTOR    2
  31
  32 /* These assume 4k pages */
  33 #define MAX_RX_DESC_CNT (8 * 1024)
  34 #define MAX_TX_DESC_CNT (4 * 1024)
  35 #define MAX_CP_DESC_CNT (16 * 1024)
  36
  37 #define INVALID_HW_RING_ID      ((uint16_t)-1)
  38 #define INVALID_STATS_CTX_ID            ((uint16_t)-1)
  39
  40 struct bnxt_ring {
  41         void                    *bd;
  42         rte_iova_t              bd_dma;
  43         uint32_t                ring_size;
  44         uint32_t                ring_mask;
  45
  46         int                     vmem_size;
  47         void                    **vmem;
  48
  49         uint16_t                fw_ring_id; /* Ring id filled by Chimp FW */
  50         const void              *mem_zone;
  51 };
  52
  53 struct bnxt_ring_grp_info {
  54         uint16_t        fw_stats_ctx;
  55         uint16_t        fw_grp_id;
  56         uint16_t        rx_fw_ring_id;
  57         uint16_t        cp_fw_ring_id;
  58         uint16_t        ag_fw_ring_id;
  59 };
  60
  61 struct bnxt;
  62 struct bnxt_tx_ring_info;
  63 struct bnxt_rx_ring_info;
  64 struct bnxt_cp_ring_info;
  65 void bnxt_free_ring(struct bnxt_ring *ring);
  66 int bnxt_init_ring_grps(struct bnxt *bp);
  67 int bnxt_alloc_rings(struct bnxt *bp, uint16_t qidx,
  68                             struct bnxt_tx_queue *txq,
  69                             struct bnxt_rx_queue *rxq,
  70                             struct bnxt_cp_ring_info *cp_ring_info,
  71                             const char *suffix);
  72 int bnxt_alloc_hwrm_rings(struct bnxt *bp);
  73
  74 #endif