drivers/net/bnxt/bnxt_rxr.h

   1 /*-
   2  *   BSD LICENSE
   3  *
   4  *   Copyright(c) Broadcom Limited.
   5  *   All rights reserved.
   6  *
   7  *   Redistribution and use in source and binary forms, with or without
   8  *   modification, are permitted provided that the following conditions
   9  *   are met:
  10  *
  11  *     * Redistributions of source code must retain the above copyright
  12  *       notice, this list of conditions and the following disclaimer.
  13  *     * Redistributions in binary form must reproduce the above copyright
  14  *       notice, this list of conditions and the following disclaimer in
  15  *       the documentation and/or other materials provided with the
  16  *       distribution.
  17  *     * Neither the name of Broadcom Corporation nor the names of its
  18  *       contributors may be used to endorse or promote products derived
  19  *       from this software without specific prior written permission.
  20  *
  21  *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  22  *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  23  *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  24  *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  25  *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  26  *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  27  *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  28  *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  29  *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  30  *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  31  *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  32  */
  33
  34 #ifndef _BNXT_RXR_H_
  35 #define _BNXT_RXR_H_
  36
  37 #define B_RX_DB(db, prod)                                               \
  38                 (*(uint32_t *)db = (DB_KEY_RX | prod))
  39
  40 #define BNXT_TPA_L4_SIZE(x)     \
  41         { \
  42                 typeof(x) hdr_info = (x); \
  43                 (((hdr_info) & 0xf8000000) ? ((hdr_info) >> 27) : 32) \
  44         }
  45
  46 #define BNXT_TPA_INNER_L3_OFF(hdr_info) \
  47         (((hdr_info) >> 18) & 0x1ff)
  48
  49 #define BNXT_TPA_INNER_L2_OFF(hdr_info) \
  50         (((hdr_info) >> 9) & 0x1ff)
  51
  52 #define BNXT_TPA_OUTER_L3_OFF(hdr_info) \
  53         ((hdr_info) & 0x1ff)
  54
  55 #define RX_CMP_L4_CS_BITS       \
  56         rte_cpu_to_le_32(RX_PKT_CMPL_FLAGS2_L4_CS_CALC | \
  57                          RX_PKT_CMPL_FLAGS2_T_L4_CS_CALC)
  58
  59 #define RX_CMP_L4_CS_ERR_BITS   \
  60         rte_cpu_to_le_32(RX_PKT_CMPL_ERRORS_L4_CS_ERROR | \
  61                          RX_PKT_CMPL_ERRORS_T_L4_CS_ERROR)
  62
  63 #define RX_CMP_L4_CS_OK(rxcmp1)                                         \
  64             (((rxcmp1)->flags2 & RX_CMP_L4_CS_BITS) &&          \
  65              !((rxcmp1)->errors_v2 & RX_CMP_L4_CS_ERR_BITS))
  66
  67 #define RX_CMP_L4_CS_UNKNOWN(rxcmp1)                                    \
  68             !((rxcmp1)->flags2 & RX_CMP_L4_CS_BITS)
  69
  70 #define RX_CMP_IP_CS_ERR_BITS   \
  71         rte_cpu_to_le_32(RX_PKT_CMPL_ERRORS_IP_CS_ERROR | \
  72                          RX_PKT_CMPL_ERRORS_T_IP_CS_ERROR)
  73
  74 #define RX_CMP_IP_CS_BITS       \
  75         rte_cpu_to_le_32(RX_PKT_CMPL_FLAGS2_IP_CS_CALC | \
  76                          RX_PKT_CMPL_FLAGS2_T_IP_CS_CALC)
  77
  78 #define RX_CMP_IP_CS_OK(rxcmp1)                                         \
  79                 (((rxcmp1)->flags2 & RX_CMP_IP_CS_BITS) &&      \
  80                 !((rxcmp1)->errors_v2 & RX_CMP_IP_CS_ERR_BITS))
  81
  82 #define RX_CMP_IP_CS_UNKNOWN(rxcmp1)                                    \
  83                 !((rxcmp1)->flags2 & RX_CMP_IP_CS_BITS)
  84
  85 enum pkt_hash_types {
  86         PKT_HASH_TYPE_NONE,     /* Undefined type */
  87         PKT_HASH_TYPE_L2,       /* Input: src_MAC, dest_MAC */
  88         PKT_HASH_TYPE_L3,       /* Input: src_IP, dst_IP */
  89         PKT_HASH_TYPE_L4,       /* Input: src_IP, dst_IP, src_port, dst_port */
  90 };
  91
  92 struct bnxt_tpa_info {
  93         struct rte_mbuf         *mbuf;
  94         uint16_t                        len;
  95         unsigned short          gso_type;
  96         uint32_t                        flags2;
  97         uint32_t                        metadata;
  98         enum pkt_hash_types     hash_type;
  99         uint32_t                        rss_hash;
 100         uint32_t                        hdr_info;
 101 };
 102
 103 struct bnxt_sw_rx_bd {
 104         struct rte_mbuf         *mbuf; /* data associated with RX descriptor */
 105 };
 106
 107 struct bnxt_rx_ring_info {
 108         uint16_t                rx_prod;
 109         uint16_t                ag_prod;
 110         void                    *rx_doorbell;
 111         void                    *ag_doorbell;
 112
 113         struct rx_prod_pkt_bd   *rx_desc_ring;
 114         struct rx_prod_pkt_bd   *ag_desc_ring;
 115         struct bnxt_sw_rx_bd    *rx_buf_ring; /* sw ring */
 116         struct bnxt_sw_rx_bd    *ag_buf_ring; /* sw ring */
 117
 118         rte_iova_t              rx_desc_mapping;
 119         rte_iova_t              ag_desc_mapping;
 120
 121         struct bnxt_ring        *rx_ring_struct;
 122         struct bnxt_ring        *ag_ring_struct;
 123
 124         /*
 125          * To deal with out of order return from TPA, use free buffer indicator
 126          */
 127         struct rte_bitmap       *ag_bitmap;
 128
 129         struct bnxt_tpa_info *tpa_info;
 130 };
 131
 132 uint16_t bnxt_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts,
 133                                uint16_t nb_pkts);
 134 void bnxt_free_rx_rings(struct bnxt *bp);
 135 int bnxt_init_rx_ring_struct(struct bnxt_rx_queue *rxq, unsigned int socket_id);
 136 int bnxt_init_one_rx_ring(struct bnxt_rx_queue *rxq);
 137
 138 #endif