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 RX_CMP_L4_CS_BITS       \
  41         rte_cpu_to_le_32(RX_PKT_CMPL_FLAGS2_L4_CS_CALC | \
  42                          RX_PKT_CMPL_FLAGS2_T_L4_CS_CALC)
  43
  44 #define RX_CMP_L4_CS_ERR_BITS   \
  45         rte_cpu_to_le_32(RX_PKT_CMPL_ERRORS_L4_CS_ERROR | \
  46                          RX_PKT_CMPL_ERRORS_T_L4_CS_ERROR)
  47
  48 #define RX_CMP_L4_CS_OK(rxcmp1)                                         \
  49             (((rxcmp1)->flags2 & RX_CMP_L4_CS_BITS) &&          \
  50              !((rxcmp1)->errors_v2 & RX_CMP_L4_CS_ERR_BITS))
  51
  52 #define RX_CMP_L4_CS_UNKNOWN(rxcmp1)                                    \
  53             !((rxcmp1)->flags2 & RX_CMP_L4_CS_BITS)
  54
  55 #define RX_CMP_IP_CS_ERR_BITS   \
  56         rte_cpu_to_le_32(RX_PKT_CMPL_ERRORS_IP_CS_ERROR | \
  57                          RX_PKT_CMPL_ERRORS_T_IP_CS_ERROR)
  58
  59 #define RX_CMP_IP_CS_BITS       \
  60         rte_cpu_to_le_32(RX_PKT_CMPL_FLAGS2_IP_CS_CALC | \
  61                          RX_PKT_CMPL_FLAGS2_T_IP_CS_CALC)
  62
  63 #define RX_CMP_IP_CS_OK(rxcmp1)                                         \
  64                 (((rxcmp1)->flags2 & RX_CMP_IP_CS_BITS) &&      \
  65                 !((rxcmp1)->errors_v2 & RX_CMP_IP_CS_ERR_BITS))
  66
  67 #define RX_CMP_IP_CS_UNKNOWN(rxcmp1)                                    \
  68                 !((rxcmp1)->flags2 & RX_CMP_IP_CS_BITS)
  69
  70 struct bnxt_sw_rx_bd {
  71         struct rte_mbuf         *mbuf; /* data associated with RX descriptor */
  72 };
  73
  74 struct bnxt_rx_ring_info {
  75         uint16_t                rx_prod;
  76         void                    *rx_doorbell;
  77
  78         struct rx_prod_pkt_bd   *rx_desc_ring;
  79         struct bnxt_sw_rx_bd    *rx_buf_ring; /* sw ring */
  80
  81         phys_addr_t             rx_desc_mapping;
  82
  83         struct bnxt_ring        *rx_ring_struct;
  84 };
  85
  86 uint16_t bnxt_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts,
  87                                uint16_t nb_pkts);
  88 void bnxt_free_rx_rings(struct bnxt *bp);
  89 int bnxt_init_rx_ring_struct(struct bnxt_rx_queue *rxq, unsigned int socket_id);
  90 int bnxt_init_one_rx_ring(struct bnxt_rx_queue *rxq);
  91
  92 #endif