1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(c) 2014-2023 Broadcom
3 * All rights reserved.
4 */
5
6 #ifndef _BNXT_TXR_H_
7 #define _BNXT_TXR_H_
8
9 #include <rte_io.h>
10
11 #define BNXT_MAX_TSO_SEGS 32
12 #define BNXT_MIN_PKT_SIZE 52
13
14 /* Number of transmit descriptors processed per inner loop in vector mode. */
15 #define BNXT_TX_DESCS_PER_LOOP 4U
16
17 struct bnxt_tx_ring_info {
18 uint16_t tx_raw_prod;
19 uint16_t tx_raw_cons;
20 struct bnxt_db_info tx_db;
21
22 struct tx_bd_long *tx_desc_ring;
23 struct rte_mbuf **tx_buf_ring;
24
25 rte_iova_t tx_desc_mapping;
26
27 unsigned short *nr_bds;
28 struct bnxt_ring *tx_ring_struct;
29 };
30
bnxt_tx_bds_in_hw(struct bnxt_tx_queue * txq)31 static inline uint32_t bnxt_tx_bds_in_hw(struct bnxt_tx_queue *txq)
32 {
33 return ((txq->tx_ring->tx_raw_prod - txq->tx_ring->tx_raw_cons) &
34 txq->tx_ring->tx_ring_struct->ring_mask);
35 }
36
bnxt_tx_avail(struct bnxt_tx_queue * txq)37 static inline uint32_t bnxt_tx_avail(struct bnxt_tx_queue *txq)
38 {
39 /* Tell compiler to fetch tx indices from memory. */
40 rte_compiler_barrier();
41
42 return ((txq->tx_ring->tx_ring_struct->ring_size -
43 bnxt_tx_bds_in_hw(txq)) - 1);
44 }
45
46 void bnxt_free_tx_rings(struct bnxt *bp);
47 int bnxt_init_one_tx_ring(struct bnxt_tx_queue *txq);
48 int bnxt_init_tx_ring_struct(struct bnxt_tx_queue *txq, unsigned int socket_id);
49 uint16_t bnxt_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
50 uint16_t nb_pkts);
51 uint16_t _bnxt_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
52 uint16_t nb_pkts);
53 #if defined(RTE_ARCH_X86) || defined(RTE_ARCH_ARM64)
54 uint16_t bnxt_xmit_pkts_vec(void *tx_queue, struct rte_mbuf **tx_pkts,
55 uint16_t nb_pkts);
56 #endif
57 #if defined(RTE_ARCH_X86)
58 uint16_t bnxt_xmit_pkts_vec_avx2(void *tx_queue, struct rte_mbuf **tx_pkts,
59 uint16_t nb_pkts);
60 #endif
61
62 int bnxt_tx_queue_start(struct rte_eth_dev *dev, uint16_t tx_queue_id);
63 int bnxt_tx_queue_stop(struct rte_eth_dev *dev, uint16_t tx_queue_id);
64 int bnxt_flush_tx_cmp(struct bnxt_cp_ring_info *cpr);
65
66 #define PKT_TX_OIP_IIP_TCP_UDP_CKSUM (RTE_MBUF_F_TX_TCP_CKSUM | RTE_MBUF_F_TX_UDP_CKSUM | \
67 RTE_MBUF_F_TX_IP_CKSUM | RTE_MBUF_F_TX_OUTER_IP_CKSUM)
68 #define PKT_TX_OIP_IIP_UDP_CKSUM (RTE_MBUF_F_TX_UDP_CKSUM | \
69 RTE_MBUF_F_TX_IP_CKSUM | RTE_MBUF_F_TX_OUTER_IP_CKSUM)
70 #define PKT_TX_OIP_IIP_TCP_CKSUM (RTE_MBUF_F_TX_TCP_CKSUM | \
71 RTE_MBUF_F_TX_IP_CKSUM | RTE_MBUF_F_TX_OUTER_IP_CKSUM)
72 #define PKT_TX_IIP_TCP_UDP_CKSUM (RTE_MBUF_F_TX_TCP_CKSUM | RTE_MBUF_F_TX_UDP_CKSUM | \
73 RTE_MBUF_F_TX_IP_CKSUM)
74 #define PKT_TX_IIP_TCP_CKSUM (RTE_MBUF_F_TX_TCP_CKSUM | RTE_MBUF_F_TX_IP_CKSUM)
75 #define PKT_TX_IIP_UDP_CKSUM (RTE_MBUF_F_TX_UDP_CKSUM | RTE_MBUF_F_TX_IP_CKSUM)
76 #define PKT_TX_OIP_TCP_UDP_CKSUM (RTE_MBUF_F_TX_TCP_CKSUM | RTE_MBUF_F_TX_UDP_CKSUM | \
77 RTE_MBUF_F_TX_OUTER_IP_CKSUM)
78 #define PKT_TX_OIP_UDP_CKSUM (RTE_MBUF_F_TX_UDP_CKSUM | \
79 RTE_MBUF_F_TX_OUTER_IP_CKSUM)
80 #define PKT_TX_OIP_TCP_CKSUM (RTE_MBUF_F_TX_TCP_CKSUM | \
81 RTE_MBUF_F_TX_OUTER_IP_CKSUM)
82 #define PKT_TX_OIP_IIP_CKSUM (RTE_MBUF_F_TX_IP_CKSUM | \
83 RTE_MBUF_F_TX_OUTER_IP_CKSUM)
84 #define PKT_TX_TCP_UDP_CKSUM (RTE_MBUF_F_TX_TCP_CKSUM | RTE_MBUF_F_TX_UDP_CKSUM)
85
86
87 #define TX_BD_FLG_TIP_IP_TCP_UDP_CHKSUM (TX_BD_LONG_LFLAGS_TCP_UDP_CHKSUM | \
88 TX_BD_LONG_LFLAGS_T_IP_CHKSUM | \
89 TX_BD_LONG_LFLAGS_IP_CHKSUM)
90 #define TX_BD_FLG_IP_TCP_UDP_CHKSUM (TX_BD_LONG_LFLAGS_TCP_UDP_CHKSUM | \
91 TX_BD_LONG_LFLAGS_IP_CHKSUM)
92 #define TX_BD_FLG_TIP_IP_CHKSUM (TX_BD_LONG_LFLAGS_T_IP_CHKSUM | \
93 TX_BD_LONG_LFLAGS_IP_CHKSUM)
94 #define TX_BD_FLG_TIP_TCP_UDP_CHKSUM (TX_BD_LONG_LFLAGS_TCP_UDP_CHKSUM | \
95 TX_BD_LONG_LFLAGS_T_IP_CHKSUM)
96 #endif
97