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       rte_cpu_to_le_32(RX_PKT_CMPL_FLAGS2_L4_CS_CALC)
  56
  57 #define RX_CMP_L4_CS_ERR_BITS   rte_cpu_to_le_32(RX_PKT_CMPL_ERRORS_L4_CS_ERROR)
  58
  59 #define RX_CMP_L4_CS_OK(rxcmp1)                                         \
  60             (((rxcmp1)->flags2 & RX_CMP_L4_CS_BITS) &&          \
  61              !((rxcmp1)->errors_v2 & RX_CMP_L4_CS_ERR_BITS))
  62
  63 #define RX_CMP_IP_CS_ERR_BITS   rte_cpu_to_le_32(RX_PKT_CMPL_ERRORS_IP_CS_ERROR)
  64
  65 #define RX_CMP_IP_CS_BITS       rte_cpu_to_le_32(RX_PKT_CMPL_FLAGS2_IP_CS_CALC)
  66
  67 #define RX_CMP_IP_CS_OK(rxcmp1)                                         \
  68                 (((rxcmp1)->flags2 & RX_CMP_IP_CS_BITS) &&      \
  69                 !((rxcmp1)->errors_v2 & RX_CMP_IP_CS_ERR_BITS))
  70
  71 enum pkt_hash_types {
  72         PKT_HASH_TYPE_NONE,     /* Undefined type */
  73         PKT_HASH_TYPE_L2,       /* Input: src_MAC, dest_MAC */
  74         PKT_HASH_TYPE_L3,       /* Input: src_IP, dst_IP */
  75         PKT_HASH_TYPE_L4,       /* Input: src_IP, dst_IP, src_port, dst_port */
  76 };
  77
  78 struct bnxt_tpa_info {
  79         struct rte_mbuf         *mbuf;
  80         uint16_t                        len;
  81         unsigned short          gso_type;
  82         uint32_t                        flags2;
  83         uint32_t                        metadata;
  84         enum pkt_hash_types     hash_type;
  85         uint32_t                        rss_hash;
  86         uint32_t                        hdr_info;
  87 };
  88
  89 struct bnxt_sw_rx_bd {
  90         struct rte_mbuf         *mbuf; /* data associated with RX descriptor */
  91 };
  92
  93 struct bnxt_rx_ring_info {
  94         uint16_t                rx_prod;
  95         uint16_t                ag_prod;
  96         void                    *rx_doorbell;
  97         void                    *ag_doorbell;
  98
  99         struct rx_prod_pkt_bd   *rx_desc_ring;
 100         struct rx_prod_pkt_bd   *ag_desc_ring;
 101         struct bnxt_sw_rx_bd    *rx_buf_ring; /* sw ring */
 102         struct bnxt_sw_rx_bd    *ag_buf_ring; /* sw ring */
 103
 104         phys_addr_t             rx_desc_mapping;
 105         phys_addr_t             ag_desc_mapping;
 106
 107         struct bnxt_ring        *rx_ring_struct;
 108         struct bnxt_ring        *ag_ring_struct;
 109
 110         /*
 111          * To deal with out of order return from TPA, use free buffer indicator
 112          */
 113         struct rte_bitmap       *ag_bitmap;
 114
 115         struct bnxt_tpa_info *tpa_info;
 116 };
 117
 118 uint16_t bnxt_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts,
 119                                uint16_t nb_pkts);
 120 void bnxt_free_rx_rings(struct bnxt *bp);
 121 int bnxt_init_rx_ring_struct(struct bnxt_rx_queue *rxq, unsigned int socket_id);
 122 int bnxt_init_one_rx_ring(struct bnxt_rx_queue *rxq);
 123
 124 #endif