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39 /* Verbs headers do not support -pedantic. */
41 #pragma GCC diagnostic ignored "-Wpedantic"
43 #include <infiniband/verbs.h>
45 #pragma GCC diagnostic error "-Wpedantic"
48 #include <rte_ethdev.h>
50 #include <rte_mempool.h>
54 /** Rx queue counters. */
55 struct mlx4_rxq_stats {
56 unsigned int idx; /**< Mapping index. */
57 uint64_t ipackets; /**< Total of successfully received packets. */
58 uint64_t ibytes; /**< Total of successfully received bytes. */
59 uint64_t idropped; /**< Total of packets dropped when Rx ring full. */
60 uint64_t rx_nombuf; /**< Total of Rx mbuf allocation failures. */
65 struct ibv_recv_wr wr; /**< Work request. */
66 struct ibv_sge sge; /**< Scatter/gather element. */
67 struct rte_mbuf *buf; /**< Buffer. */
70 /** Rx queue descriptor. */
72 struct priv *priv; /**< Back pointer to private data. */
73 struct rte_mempool *mp; /**< Memory pool for allocations. */
74 struct ibv_mr *mr; /**< Memory region (for mp). */
75 struct ibv_cq *cq; /**< Completion queue. */
76 struct ibv_wq *wq; /**< Work queue. */
77 struct ibv_rwq_ind_table *ind; /**< Indirection table. */
78 struct ibv_qp *qp; /**< Queue pair. */
79 struct ibv_comp_channel *channel; /**< Rx completion channel. */
80 unsigned int port_id; /**< Port ID for incoming packets. */
81 unsigned int elts_n; /**< (*elts)[] length. */
82 unsigned int elts_head; /**< Current index in (*elts)[]. */
83 struct rxq_elt (*elts)[]; /**< Rx elements. */
84 struct mlx4_rxq_stats stats; /**< Rx queue counters. */
85 unsigned int socket; /**< CPU socket ID for allocations. */
86 uint8_t data[]; /**< Remaining queue resources. */
91 struct ibv_send_wr wr; /**< Work request. */
92 struct ibv_sge sge; /**< Scatter/gather element. */
93 struct rte_mbuf *buf; /**< Buffer. */
96 /** Rx queue counters. */
97 struct mlx4_txq_stats {
98 unsigned int idx; /**< Mapping index. */
99 uint64_t opackets; /**< Total of successfully sent packets. */
100 uint64_t obytes; /**< Total of successfully sent bytes. */
101 uint64_t odropped; /**< Total of packets not sent when Tx ring full. */
104 /** Tx queue descriptor. */
106 struct priv *priv; /**< Back pointer to private data. */
108 const struct rte_mempool *mp; /**< Cached memory pool. */
109 struct ibv_mr *mr; /**< Memory region (for mp). */
110 uint32_t lkey; /**< mr->lkey copy. */
111 } mp2mr[MLX4_PMD_TX_MP_CACHE]; /**< MP to MR translation table. */
112 struct ibv_cq *cq; /**< Completion queue. */
113 struct ibv_qp *qp; /**< Queue pair. */
114 uint32_t max_inline; /**< Max inline send size. */
115 unsigned int elts_n; /**< (*elts)[] length. */
116 struct txq_elt (*elts)[]; /**< Tx elements. */
117 unsigned int elts_head; /**< Current index in (*elts)[]. */
118 unsigned int elts_tail; /**< First element awaiting completion. */
119 unsigned int elts_comp; /**< Number of completion requests. */
120 unsigned int elts_comp_cd; /**< Countdown for next completion. */
121 unsigned int elts_comp_cd_init; /**< Initial value for countdown. */
122 struct mlx4_txq_stats stats; /**< Tx queue counters. */
123 unsigned int socket; /**< CPU socket ID for allocations. */
124 uint8_t data[]; /**< Remaining queue resources. */
129 int mlx4_rx_queue_setup(struct rte_eth_dev *dev, uint16_t idx,
130 uint16_t desc, unsigned int socket,
131 const struct rte_eth_rxconf *conf,
132 struct rte_mempool *mp);
133 void mlx4_rx_queue_release(void *dpdk_rxq);
137 uint32_t mlx4_txq_mp2mr(struct txq *txq, struct rte_mempool *mp);
138 uint16_t mlx4_tx_burst(void *dpdk_txq, struct rte_mbuf **pkts,
140 uint16_t mlx4_rx_burst(void *dpdk_rxq, struct rte_mbuf **pkts,
142 uint16_t mlx4_tx_burst_removed(void *dpdk_txq, struct rte_mbuf **pkts,
144 uint16_t mlx4_rx_burst_removed(void *dpdk_rxq, struct rte_mbuf **pkts,
149 int mlx4_tx_queue_setup(struct rte_eth_dev *dev, uint16_t idx,
150 uint16_t desc, unsigned int socket,
151 const struct rte_eth_txconf *conf);
152 void mlx4_tx_queue_release(void *dpdk_txq);
154 #endif /* MLX4_RXTX_H_ */