1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(c) 2014-2018 Broadcom
11 #define BNXT_MAX_TSO_SEGS 32
12 #define BNXT_MIN_PKT_SIZE 52
14 struct bnxt_tx_ring_info {
17 struct bnxt_db_info tx_db;
19 struct tx_bd_long *tx_desc_ring;
20 struct bnxt_sw_tx_bd *tx_buf_ring;
22 rte_iova_t tx_desc_mapping;
24 struct bnxt_ring *tx_ring_struct;
27 struct bnxt_sw_tx_bd {
28 struct rte_mbuf *mbuf; /* mbuf associated with TX descriptor */
29 unsigned short nr_bds;
32 static inline uint32_t bnxt_tx_bds_in_hw(struct bnxt_tx_queue *txq)
34 return ((txq->tx_ring->tx_prod - txq->tx_ring->tx_cons) &
35 txq->tx_ring->tx_ring_struct->ring_mask);
38 static inline uint32_t bnxt_tx_avail(struct bnxt_tx_queue *txq)
40 /* Tell compiler to fetch tx indices from memory. */
41 rte_compiler_barrier();
43 return ((txq->tx_ring->tx_ring_struct->ring_size -
44 bnxt_tx_bds_in_hw(txq)) - 1);
48 * Transmit completion function for use when DEV_TX_OFFLOAD_MBUF_FAST_FREE
52 bnxt_tx_cmp_fast(struct bnxt_tx_queue *txq, int nr_pkts)
54 struct bnxt_tx_ring_info *txr = txq->tx_ring;
55 uint32_t ring_mask = txr->tx_ring_struct->ring_mask;
56 struct rte_mbuf **free = txq->free;
57 uint16_t cons = txr->tx_cons;
61 struct bnxt_sw_tx_bd *tx_buf;
63 tx_buf = &txr->tx_buf_ring[cons];
64 cons = (cons + 1) & ring_mask;
65 free[blk++] = tx_buf->mbuf;
69 rte_mempool_put_bulk(free[0]->pool, (void **)free, blk);
74 void bnxt_free_tx_rings(struct bnxt *bp);
75 int bnxt_init_one_tx_ring(struct bnxt_tx_queue *txq);
76 int bnxt_init_tx_ring_struct(struct bnxt_tx_queue *txq, unsigned int socket_id);
77 uint16_t bnxt_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
79 uint16_t bnxt_dummy_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
81 #if defined(RTE_ARCH_X86) || defined(RTE_ARCH_ARM64)
82 uint16_t bnxt_xmit_pkts_vec(void *tx_queue, struct rte_mbuf **tx_pkts,
86 int bnxt_tx_queue_start(struct rte_eth_dev *dev, uint16_t tx_queue_id);
87 int bnxt_tx_queue_stop(struct rte_eth_dev *dev, uint16_t tx_queue_id);
89 #define PKT_TX_OIP_IIP_TCP_UDP_CKSUM (PKT_TX_TCP_CKSUM | PKT_TX_UDP_CKSUM | \
90 PKT_TX_IP_CKSUM | PKT_TX_OUTER_IP_CKSUM)
91 #define PKT_TX_OIP_IIP_UDP_CKSUM (PKT_TX_UDP_CKSUM | \
92 PKT_TX_IP_CKSUM | PKT_TX_OUTER_IP_CKSUM)
93 #define PKT_TX_OIP_IIP_TCP_CKSUM (PKT_TX_TCP_CKSUM | \
94 PKT_TX_IP_CKSUM | PKT_TX_OUTER_IP_CKSUM)
95 #define PKT_TX_IIP_TCP_UDP_CKSUM (PKT_TX_TCP_CKSUM | PKT_TX_UDP_CKSUM | \
97 #define PKT_TX_IIP_TCP_CKSUM (PKT_TX_TCP_CKSUM | PKT_TX_IP_CKSUM)
98 #define PKT_TX_IIP_UDP_CKSUM (PKT_TX_UDP_CKSUM | PKT_TX_IP_CKSUM)
99 #define PKT_TX_OIP_TCP_UDP_CKSUM (PKT_TX_TCP_CKSUM | PKT_TX_UDP_CKSUM | \
100 PKT_TX_OUTER_IP_CKSUM)
101 #define PKT_TX_OIP_UDP_CKSUM (PKT_TX_UDP_CKSUM | \
102 PKT_TX_OUTER_IP_CKSUM)
103 #define PKT_TX_OIP_TCP_CKSUM (PKT_TX_TCP_CKSUM | \
104 PKT_TX_OUTER_IP_CKSUM)
105 #define PKT_TX_OIP_IIP_CKSUM (PKT_TX_IP_CKSUM | \
106 PKT_TX_OUTER_IP_CKSUM)
107 #define PKT_TX_TCP_UDP_CKSUM (PKT_TX_TCP_CKSUM | PKT_TX_UDP_CKSUM)
110 #define TX_BD_FLG_TIP_IP_TCP_UDP_CHKSUM (TX_BD_LONG_LFLAGS_TCP_UDP_CHKSUM | \
111 TX_BD_LONG_LFLAGS_T_IP_CHKSUM | \
112 TX_BD_LONG_LFLAGS_IP_CHKSUM)
113 #define TX_BD_FLG_IP_TCP_UDP_CHKSUM (TX_BD_LONG_LFLAGS_TCP_UDP_CHKSUM | \
114 TX_BD_LONG_LFLAGS_IP_CHKSUM)
115 #define TX_BD_FLG_TIP_IP_CHKSUM (TX_BD_LONG_LFLAGS_T_IP_CHKSUM | \
116 TX_BD_LONG_LFLAGS_IP_CHKSUM)
117 #define TX_BD_FLG_TIP_TCP_UDP_CHKSUM (TX_BD_LONG_LFLAGS_TCP_UDP_CHKSUM | \
118 TX_BD_LONG_LFLAGS_T_IP_CHKSUM)