-struct mlx4_rxq_stats {
- unsigned int idx; /**< Mapping index. */
-#ifdef MLX4_PMD_SOFT_COUNTERS
- uint64_t ipackets; /**< Total of successfully received packets. */
- uint64_t ibytes; /**< Total of successfully received bytes. */
-#endif
- uint64_t idropped; /**< Total of packets dropped when RX ring full. */
- uint64_t rx_nombuf; /**< Total of RX mbuf allocation failures. */
-};
-
-struct mlx4_txq_stats {
- unsigned int idx; /**< Mapping index. */
-#ifdef MLX4_PMD_SOFT_COUNTERS
- uint64_t opackets; /**< Total of successfully sent packets. */
- uint64_t obytes; /**< Total of successfully sent bytes. */
-#endif
- uint64_t odropped; /**< Total of packets not sent when TX ring full. */
-};
-
-/* RX element (scattered packets). */
-struct rxq_elt_sp {
- struct ibv_recv_wr wr; /* Work Request. */
- struct ibv_sge sges[MLX4_PMD_SGE_WR_N]; /* Scatter/Gather Elements. */
- struct rte_mbuf *bufs[MLX4_PMD_SGE_WR_N]; /* SGEs buffers. */
-};
-
-/* RX element. */
-struct rxq_elt {
- struct ibv_recv_wr wr; /* Work Request. */
- struct ibv_sge sge; /* Scatter/Gather Element. */
- /* mbuf pointer is derived from WR_ID(wr.wr_id).offset. */
-};
-
-/* RX queue descriptor. */
-struct rxq {
- struct priv *priv; /* Back pointer to private data. */
- struct rte_mempool *mp; /* Memory Pool for allocations. */
- struct ibv_mr *mr; /* Memory Region (for mp). */
- struct ibv_cq *cq; /* Completion Queue. */
- struct ibv_qp *qp; /* Queue Pair. */
- struct ibv_exp_qp_burst_family *if_qp; /* QP burst interface. */
- struct ibv_exp_cq_family *if_cq; /* CQ interface. */
- /*
- * Each VLAN ID requires a separate flow steering rule.
- */
- BITFIELD_DECLARE(mac_configured, uint32_t, MLX4_MAX_MAC_ADDRESSES);
- struct ibv_flow *mac_flow[MLX4_MAX_MAC_ADDRESSES][MLX4_MAX_VLAN_IDS];
- struct ibv_flow *promisc_flow; /* Promiscuous flow. */
- struct ibv_flow *allmulti_flow; /* Multicast flow. */
- unsigned int port_id; /* Port ID for incoming packets. */
- unsigned int elts_n; /* (*elts)[] length. */
- unsigned int elts_head; /* Current index in (*elts)[]. */
- union {
- struct rxq_elt_sp (*sp)[]; /* Scattered RX elements. */
- struct rxq_elt (*no_sp)[]; /* RX elements. */
- } elts;
- unsigned int sp:1; /* Use scattered RX elements. */
- unsigned int csum:1; /* Enable checksum offloading. */
- unsigned int csum_l2tun:1; /* Same for L2 tunnels. */
- uint32_t mb_len; /* Length of a mp-issued mbuf. */
- struct mlx4_rxq_stats stats; /* RX queue counters. */
- unsigned int socket; /* CPU socket ID for allocations. */
- struct ibv_exp_res_domain *rd; /* Resource Domain. */
-};
-
-/* TX element. */
-struct txq_elt {
- struct rte_mbuf *buf;
-};
-
-/* Linear buffer type. It is used when transmitting buffers with too many
- * segments that do not fit the hardware queue (see max_send_sge).
- * Extra segments are copied (linearized) in such buffers, replacing the
- * last SGE during TX.
- * The size is arbitrary but large enough to hold a jumbo frame with
- * 8 segments considering mbuf.buf_len is about 2048 bytes. */
-typedef uint8_t linear_t[16384];
-
-/* TX queue descriptor. */
-struct txq {
- struct priv *priv; /* Back pointer to private data. */
- struct {
- const struct rte_mempool *mp; /* Cached Memory Pool. */
- struct ibv_mr *mr; /* Memory Region (for mp). */
- uint32_t lkey; /* mr->lkey */
- } mp2mr[MLX4_PMD_TX_MP_CACHE]; /* MP to MR translation table. */
- struct ibv_cq *cq; /* Completion Queue. */
- struct ibv_qp *qp; /* Queue Pair. */
- struct ibv_exp_qp_burst_family *if_qp; /* QP burst interface. */
- struct ibv_exp_cq_family *if_cq; /* CQ interface. */
-#if MLX4_PMD_MAX_INLINE > 0
- uint32_t max_inline; /* Max inline send size <= MLX4_PMD_MAX_INLINE. */
-#endif
- unsigned int elts_n; /* (*elts)[] length. */
- struct txq_elt (*elts)[]; /* TX elements. */
- unsigned int elts_head; /* Current index in (*elts)[]. */
- unsigned int elts_tail; /* First element awaiting completion. */
- unsigned int elts_comp; /* Number of completion requests. */
- unsigned int elts_comp_cd; /* Countdown for next completion request. */
- unsigned int elts_comp_cd_init; /* Initial value for countdown. */
- struct mlx4_txq_stats stats; /* TX queue counters. */
- linear_t (*elts_linear)[]; /* Linearized buffers. */
- struct ibv_mr *mr_linear; /* Memory Region for linearized buffers. */
- unsigned int socket; /* CPU socket ID for allocations. */
- struct ibv_exp_res_domain *rd; /* Resource Domain. */
-};
-
-struct priv {
- struct rte_eth_dev *dev; /* Ethernet device. */
- struct ibv_context *ctx; /* Verbs context. */
- struct ibv_device_attr device_attr; /* Device properties. */
- struct ibv_pd *pd; /* Protection Domain. */
- /*
- * MAC addresses array and configuration bit-field.
- * An extra entry that cannot be modified by the DPDK is reserved
- * for broadcast frames (destination MAC address ff:ff:ff:ff:ff:ff).
- */
- struct ether_addr mac[MLX4_MAX_MAC_ADDRESSES];
- BITFIELD_DECLARE(mac_configured, uint32_t, MLX4_MAX_MAC_ADDRESSES);
- /* VLAN filters. */
- struct {
- unsigned int enabled:1; /* If enabled. */
- unsigned int id:12; /* VLAN ID (0-4095). */
- } vlan_filter[MLX4_MAX_VLAN_IDS]; /* VLAN filters table. */
- /* Device properties. */
- uint16_t mtu; /* Configured MTU. */
- uint8_t port; /* Physical port number. */
- unsigned int started:1; /* Device started, flows enabled. */
- unsigned int promisc:1; /* Device in promiscuous mode. */
- unsigned int allmulti:1; /* Device receives all multicast packets. */
- unsigned int hw_qpg:1; /* QP groups are supported. */
- unsigned int hw_tss:1; /* TSS is supported. */
- unsigned int hw_rss:1; /* RSS is supported. */
- unsigned int hw_csum:1; /* Checksum offload is supported. */
- unsigned int hw_csum_l2tun:1; /* Same for L2 tunnels. */
- unsigned int rss:1; /* RSS is enabled. */
- unsigned int vf:1; /* This is a VF device. */
- unsigned int pending_alarm:1; /* An alarm is pending. */
-#ifdef INLINE_RECV
- unsigned int inl_recv_size; /* Inline recv size */
-#endif
- unsigned int max_rss_tbl_sz; /* Maximum number of RSS queues. */
- /* RX/TX queues. */
- struct rxq rxq_parent; /* Parent queue when RSS is enabled. */
- unsigned int rxqs_n; /* RX queues array size. */
- unsigned int txqs_n; /* TX queues array size. */
- struct rxq *(*rxqs)[]; /* RX queues. */
- struct txq *(*txqs)[]; /* TX queues. */
- struct rte_intr_handle intr_handle; /* Interrupt handler. */
- rte_spinlock_t lock; /* Lock for control functions. */
-};
-