1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(c) 2014-2018 Broadcom
11 #define MAX_TX_RINGS 16
12 #define BNXT_TX_PUSH_THRESH 92
13 #define BNXT_MAX_TSO_SEGS 32
14 #define BNXT_MIN_PKT_SIZE 52
16 #define B_TX_DB(db, prod) rte_write32((DB_KEY_TX | (prod)), db)
18 struct bnxt_tx_ring_info {
23 struct tx_bd_long *tx_desc_ring;
24 struct bnxt_sw_tx_bd *tx_buf_ring;
26 rte_iova_t tx_desc_mapping;
28 #define BNXT_DEV_STATE_CLOSING 0x1
31 struct bnxt_ring *tx_ring_struct;
34 struct bnxt_sw_tx_bd {
35 struct rte_mbuf *mbuf; /* mbuf associated with TX descriptor */
37 unsigned short nr_bds;
40 static inline uint32_t bnxt_tx_bds_in_hw(struct bnxt_tx_queue *txq)
42 return ((txq->tx_ring->tx_prod - txq->tx_ring->tx_cons) &
43 txq->tx_ring->tx_ring_struct->ring_mask);
46 static inline uint32_t bnxt_tx_avail(struct bnxt_tx_queue *txq)
48 /* Tell compiler to fetch tx indices from memory. */
49 rte_compiler_barrier();
51 return ((txq->tx_ring->tx_ring_struct->ring_size -
52 bnxt_tx_bds_in_hw(txq)) - 1);
55 void bnxt_free_tx_rings(struct bnxt *bp);
56 int bnxt_init_one_tx_ring(struct bnxt_tx_queue *txq);
57 int bnxt_init_tx_ring_struct(struct bnxt_tx_queue *txq, unsigned int socket_id);
58 uint16_t bnxt_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
60 int bnxt_tx_queue_start(struct rte_eth_dev *dev, uint16_t tx_queue_id);
61 int bnxt_tx_queue_stop(struct rte_eth_dev *dev, uint16_t tx_queue_id);
63 #define PKT_TX_OIP_IIP_TCP_UDP_CKSUM (PKT_TX_TCP_CKSUM | PKT_TX_UDP_CKSUM | \
64 PKT_TX_IP_CKSUM | PKT_TX_OUTER_IP_CKSUM)
65 #define PKT_TX_OIP_IIP_UDP_CKSUM (PKT_TX_UDP_CKSUM | \
66 PKT_TX_IP_CKSUM | PKT_TX_OUTER_IP_CKSUM)
67 #define PKT_TX_OIP_IIP_TCP_CKSUM (PKT_TX_TCP_CKSUM | \
68 PKT_TX_IP_CKSUM | PKT_TX_OUTER_IP_CKSUM)
69 #define PKT_TX_IIP_TCP_UDP_CKSUM (PKT_TX_TCP_CKSUM | PKT_TX_UDP_CKSUM | \
71 #define PKT_TX_IIP_TCP_CKSUM (PKT_TX_TCP_CKSUM | PKT_TX_IP_CKSUM)
72 #define PKT_TX_IIP_UDP_CKSUM (PKT_TX_UDP_CKSUM | PKT_TX_IP_CKSUM)
73 #define PKT_TX_OIP_TCP_UDP_CKSUM (PKT_TX_TCP_CKSUM | PKT_TX_UDP_CKSUM | \
74 PKT_TX_OUTER_IP_CKSUM)
75 #define PKT_TX_OIP_UDP_CKSUM (PKT_TX_UDP_CKSUM | \
76 PKT_TX_OUTER_IP_CKSUM)
77 #define PKT_TX_OIP_TCP_CKSUM (PKT_TX_TCP_CKSUM | \
78 PKT_TX_OUTER_IP_CKSUM)
79 #define PKT_TX_OIP_IIP_CKSUM (PKT_TX_IP_CKSUM | \
80 PKT_TX_OUTER_IP_CKSUM)
81 #define PKT_TX_TCP_UDP_CKSUM (PKT_TX_TCP_CKSUM | PKT_TX_UDP_CKSUM)
84 #define TX_BD_FLG_TIP_IP_TCP_UDP_CHKSUM (TX_BD_LONG_LFLAGS_TCP_UDP_CHKSUM | \
85 TX_BD_LONG_LFLAGS_T_IP_CHKSUM | \
86 TX_BD_LONG_LFLAGS_IP_CHKSUM)
87 #define TX_BD_FLG_IP_TCP_UDP_CHKSUM (TX_BD_LONG_LFLAGS_TCP_UDP_CHKSUM | \
88 TX_BD_LONG_LFLAGS_IP_CHKSUM)
89 #define TX_BD_FLG_TIP_IP_CHKSUM (TX_BD_LONG_LFLAGS_T_IP_CHKSUM | \
90 TX_BD_LONG_LFLAGS_IP_CHKSUM)
91 #define TX_BD_FLG_TIP_TCP_UDP_CHKSUM (TX_BD_LONG_LFLAGS_TCP_UDP_CHKSUM | \
92 TX_BD_LONG_LFLAGS_T_IP_CHKSUM)