drivers/net/bnxt/bnxt_rxr.h

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2014-2018 Broadcom
   3  * All rights reserved.
   4  */
   5
   6 #ifndef _BNXT_RXR_H_
   7 #define _BNXT_RXR_H_
   8
   9 #define B_RX_DB(db, prod)                                               \
  10                 (*(uint32_t *)db = (DB_KEY_RX | prod))
  11
  12 #define BNXT_TPA_L4_SIZE(x)     \
  13         { \
  14                 typeof(x) hdr_info = (x); \
  15                 (((hdr_info) & 0xf8000000) ? ((hdr_info) >> 27) : 32) \
  16         }
  17
  18 #define BNXT_TPA_INNER_L3_OFF(hdr_info) \
  19         (((hdr_info) >> 18) & 0x1ff)
  20
  21 #define BNXT_TPA_INNER_L2_OFF(hdr_info) \
  22         (((hdr_info) >> 9) & 0x1ff)
  23
  24 #define BNXT_TPA_OUTER_L3_OFF(hdr_info) \
  25         ((hdr_info) & 0x1ff)
  26
  27 #define RX_CMP_L4_CS_BITS       \
  28         rte_cpu_to_le_32(RX_PKT_CMPL_FLAGS2_L4_CS_CALC | \
  29                          RX_PKT_CMPL_FLAGS2_T_L4_CS_CALC)
  30
  31 #define RX_CMP_L4_CS_ERR_BITS   \
  32         rte_cpu_to_le_32(RX_PKT_CMPL_ERRORS_L4_CS_ERROR | \
  33                          RX_PKT_CMPL_ERRORS_T_L4_CS_ERROR)
  34
  35 #define RX_CMP_L4_CS_OK(rxcmp1)                                         \
  36             (((rxcmp1)->flags2 & RX_CMP_L4_CS_BITS) &&          \
  37              !((rxcmp1)->errors_v2 & RX_CMP_L4_CS_ERR_BITS))
  38
  39 #define RX_CMP_L4_CS_UNKNOWN(rxcmp1)                                    \
  40             !((rxcmp1)->flags2 & RX_CMP_L4_CS_BITS)
  41
  42 #define RX_CMP_IP_CS_ERR_BITS   \
  43         rte_cpu_to_le_32(RX_PKT_CMPL_ERRORS_IP_CS_ERROR | \
  44                          RX_PKT_CMPL_ERRORS_T_IP_CS_ERROR)
  45
  46 #define RX_CMP_IP_CS_BITS       \
  47         rte_cpu_to_le_32(RX_PKT_CMPL_FLAGS2_IP_CS_CALC | \
  48                          RX_PKT_CMPL_FLAGS2_T_IP_CS_CALC)
  49
  50 #define RX_CMP_IP_CS_OK(rxcmp1)                                         \
  51                 (((rxcmp1)->flags2 & RX_CMP_IP_CS_BITS) &&      \
  52                 !((rxcmp1)->errors_v2 & RX_CMP_IP_CS_ERR_BITS))
  53
  54 #define RX_CMP_IP_CS_UNKNOWN(rxcmp1)                                    \
  55                 !((rxcmp1)->flags2 & RX_CMP_IP_CS_BITS)
  56
  57 #define BNXT_RX_POST_THRESH     32
  58
  59 enum pkt_hash_types {
  60         PKT_HASH_TYPE_NONE,     /* Undefined type */
  61         PKT_HASH_TYPE_L2,       /* Input: src_MAC, dest_MAC */
  62         PKT_HASH_TYPE_L3,       /* Input: src_IP, dst_IP */
  63         PKT_HASH_TYPE_L4,       /* Input: src_IP, dst_IP, src_port, dst_port */
  64 };
  65
  66 struct bnxt_tpa_info {
  67         struct rte_mbuf         *mbuf;
  68         uint16_t                        len;
  69         unsigned short          gso_type;
  70         uint32_t                        flags2;
  71         uint32_t                        metadata;
  72         enum pkt_hash_types     hash_type;
  73         uint32_t                        rss_hash;
  74         uint32_t                        hdr_info;
  75 };
  76
  77 struct bnxt_sw_rx_bd {
  78         struct rte_mbuf         *mbuf; /* data associated with RX descriptor */
  79 };
  80
  81 struct bnxt_rx_ring_info {
  82         uint16_t                rx_prod;
  83         uint16_t                ag_prod;
  84         void                    *rx_doorbell;
  85         void                    *ag_doorbell;
  86
  87         struct rx_prod_pkt_bd   *rx_desc_ring;
  88         struct rx_prod_pkt_bd   *ag_desc_ring;
  89         struct bnxt_sw_rx_bd    *rx_buf_ring; /* sw ring */
  90         struct bnxt_sw_rx_bd    *ag_buf_ring; /* sw ring */
  91
  92         rte_iova_t              rx_desc_mapping;
  93         rte_iova_t              ag_desc_mapping;
  94
  95         struct bnxt_ring        *rx_ring_struct;
  96         struct bnxt_ring        *ag_ring_struct;
  97
  98         /*
  99          * To deal with out of order return from TPA, use free buffer indicator
 100          */
 101         struct rte_bitmap       *ag_bitmap;
 102
 103         struct bnxt_tpa_info *tpa_info;
 104 };
 105
 106 uint16_t bnxt_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts,
 107                                uint16_t nb_pkts);
 108 void bnxt_free_rx_rings(struct bnxt *bp);
 109 int bnxt_init_rx_ring_struct(struct bnxt_rx_queue *rxq, unsigned int socket_id);
 110 int bnxt_init_one_rx_ring(struct bnxt_rx_queue *rxq);
 111 int bnxt_rx_queue_start(struct rte_eth_dev *dev, uint16_t rx_queue_id);
 112 int bnxt_rx_queue_stop(struct rte_eth_dev *dev, uint16_t rx_queue_id);
 113 #endif