drivers/net/bnxt/bnxt_rxq.h

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2014-2018 Broadcom
   3  * All rights reserved.
   4  */
   5
   6 #ifndef _BNXT_RQX_H_
   7 #define _BNXT_RQX_H_
   8
   9 /* Maximum receive burst supported in vector mode. */
  10 #define RTE_BNXT_MAX_RX_BURST           64U
  11
  12 /* Drop by default when receive desc is not available. */
  13 #define BNXT_DEFAULT_RX_DROP_EN         1
  14
  15 struct bnxt;
  16 struct bnxt_rx_ring_info;
  17 struct bnxt_cp_ring_info;
  18 struct bnxt_rx_queue {
  19         rte_spinlock_t          lock;   /* Synchronize between rx_queue_stop
  20                                          * and fast path
  21                                          */
  22         struct rte_mempool      *mb_pool; /* mbuf pool for RX ring */
  23         struct rte_mbuf         *pkt_first_seg; /* 1st seg of pkt */
  24         struct rte_mbuf         *pkt_last_seg; /* Last seg of pkt */
  25         uint64_t                mbuf_initializer; /* val to init mbuf */
  26         uint16_t                nb_rx_desc; /* num of RX desc */
  27         uint16_t                rx_tail; /* cur val of RDT register */
  28         uint16_t                nb_rx_hold; /* num held free RX desc */
  29         uint16_t                rx_free_thresh; /* max free RX desc to hold */
  30         uint16_t                queue_id; /* RX queue index */
  31 #if defined(RTE_ARCH_X86) || defined(RTE_ARCH_ARM64)
  32         uint16_t                rxrearm_nb; /* number of descs to reinit. */
  33         uint16_t                rxrearm_start; /* next desc index to reinit. */
  34 #endif
  35         uint16_t                reg_idx; /* RX queue register index */
  36         uint16_t                port_id; /* Device port identifier */
  37         uint8_t                 crc_len; /* 0 if CRC stripped, 4 otherwise */
  38         uint8_t                 rx_deferred_start; /* not in global dev start */
  39         uint8_t                 rx_started; /* RX queue is started */
  40         uint8_t                 drop_en; /* Drop when rx desc not available. */
  41
  42         struct bnxt             *bp;
  43         int                     index;
  44         struct bnxt_vnic_info   *vnic;
  45
  46         uint32_t                        rx_buf_size;
  47         struct bnxt_rx_ring_info        *rx_ring;
  48         struct bnxt_cp_ring_info        *cp_ring;
  49         struct rte_mbuf                 fake_mbuf;
  50         rte_atomic64_t          rx_mbuf_alloc_fail;
  51         const struct rte_memzone *mz;
  52 };
  53
  54 void bnxt_free_rxq_stats(struct bnxt_rx_queue *rxq);
  55 int bnxt_mq_rx_configure(struct bnxt *bp);
  56 void bnxt_rx_queue_release_op(void *rx_queue);
  57 int bnxt_rx_queue_setup_op(struct rte_eth_dev *eth_dev,
  58                                uint16_t queue_idx,
  59                                uint16_t nb_desc,
  60                                unsigned int socket_id,
  61                                const struct rte_eth_rxconf *rx_conf,
  62                                struct rte_mempool *mp);
  63 void bnxt_free_rx_mbufs(struct bnxt *bp);
  64 int bnxt_rx_queue_intr_enable_op(struct rte_eth_dev *eth_dev,
  65                                  uint16_t queue_id);
  66 int bnxt_rx_queue_intr_disable_op(struct rte_eth_dev *eth_dev,
  67                                   uint16_t queue_id);
  68 int bnxt_rx_queue_start(struct rte_eth_dev *dev,
  69                         uint16_t rx_queue_id);
  70 int bnxt_rx_queue_stop(struct rte_eth_dev *dev,
  71                        uint16_t rx_queue_id);
  72 void bnxt_rx_queue_release_mbufs(struct bnxt_rx_queue *rxq);
  73 #endif