1 /* SPDX-License-Identifier: BSD-3-Clause 2 * Copyright(c) 2014-2021 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 struct bnxt_tx_ring_info { 15 uint16_t tx_raw_prod; 16 uint16_t tx_raw_cons; 17 struct bnxt_db_info tx_db; 18 19 struct tx_bd_long *tx_desc_ring; 20 struct rte_mbuf **tx_buf_ring; 21 22 rte_iova_t tx_desc_mapping; 23 24 struct bnxt_ring *tx_ring_struct; 25 }; 26 27 static inline uint32_t bnxt_tx_bds_in_hw(struct bnxt_tx_queue *txq) 28 { 29 return ((txq->tx_ring->tx_raw_prod - txq->tx_ring->tx_raw_cons) & 30 txq->tx_ring->tx_ring_struct->ring_mask); 31 } 32 33 static inline uint32_t bnxt_tx_avail(struct bnxt_tx_queue *txq) 34 { 35 /* Tell compiler to fetch tx indices from memory. */ 36 rte_compiler_barrier(); 37 38 return ((txq->tx_ring->tx_ring_struct->ring_size - 39 bnxt_tx_bds_in_hw(txq)) - 1); 40 } 41 42 void bnxt_free_tx_rings(struct bnxt *bp); 43 int bnxt_init_one_tx_ring(struct bnxt_tx_queue *txq); 44 int bnxt_init_tx_ring_struct(struct bnxt_tx_queue *txq, unsigned int socket_id); 45 uint16_t bnxt_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts, 46 uint16_t nb_pkts); 47 #if defined(RTE_ARCH_X86) || defined(RTE_ARCH_ARM64) 48 uint16_t bnxt_xmit_pkts_vec(void *tx_queue, struct rte_mbuf **tx_pkts, 49 uint16_t nb_pkts); 50 #endif 51 52 int bnxt_tx_queue_start(struct rte_eth_dev *dev, uint16_t tx_queue_id); 53 int bnxt_tx_queue_stop(struct rte_eth_dev *dev, uint16_t tx_queue_id); 54 int bnxt_flush_tx_cmp(struct bnxt_cp_ring_info *cpr); 55 56 #define PKT_TX_OIP_IIP_TCP_UDP_CKSUM (PKT_TX_TCP_CKSUM | PKT_TX_UDP_CKSUM | \ 57 PKT_TX_IP_CKSUM | PKT_TX_OUTER_IP_CKSUM) 58 #define PKT_TX_OIP_IIP_UDP_CKSUM (PKT_TX_UDP_CKSUM | \ 59 PKT_TX_IP_CKSUM | PKT_TX_OUTER_IP_CKSUM) 60 #define PKT_TX_OIP_IIP_TCP_CKSUM (PKT_TX_TCP_CKSUM | \ 61 PKT_TX_IP_CKSUM | PKT_TX_OUTER_IP_CKSUM) 62 #define PKT_TX_IIP_TCP_UDP_CKSUM (PKT_TX_TCP_CKSUM | PKT_TX_UDP_CKSUM | \ 63 PKT_TX_IP_CKSUM) 64 #define PKT_TX_IIP_TCP_CKSUM (PKT_TX_TCP_CKSUM | PKT_TX_IP_CKSUM) 65 #define PKT_TX_IIP_UDP_CKSUM (PKT_TX_UDP_CKSUM | PKT_TX_IP_CKSUM) 66 #define PKT_TX_OIP_TCP_UDP_CKSUM (PKT_TX_TCP_CKSUM | PKT_TX_UDP_CKSUM | \ 67 PKT_TX_OUTER_IP_CKSUM) 68 #define PKT_TX_OIP_UDP_CKSUM (PKT_TX_UDP_CKSUM | \ 69 PKT_TX_OUTER_IP_CKSUM) 70 #define PKT_TX_OIP_TCP_CKSUM (PKT_TX_TCP_CKSUM | \ 71 PKT_TX_OUTER_IP_CKSUM) 72 #define PKT_TX_OIP_IIP_CKSUM (PKT_TX_IP_CKSUM | \ 73 PKT_TX_OUTER_IP_CKSUM) 74 #define PKT_TX_TCP_UDP_CKSUM (PKT_TX_TCP_CKSUM | PKT_TX_UDP_CKSUM) 75 76 77 #define TX_BD_FLG_TIP_IP_TCP_UDP_CHKSUM (TX_BD_LONG_LFLAGS_TCP_UDP_CHKSUM | \ 78 TX_BD_LONG_LFLAGS_T_IP_CHKSUM | \ 79 TX_BD_LONG_LFLAGS_IP_CHKSUM) 80 #define TX_BD_FLG_IP_TCP_UDP_CHKSUM (TX_BD_LONG_LFLAGS_TCP_UDP_CHKSUM | \ 81 TX_BD_LONG_LFLAGS_IP_CHKSUM) 82 #define TX_BD_FLG_TIP_IP_CHKSUM (TX_BD_LONG_LFLAGS_T_IP_CHKSUM | \ 83 TX_BD_LONG_LFLAGS_IP_CHKSUM) 84 #define TX_BD_FLG_TIP_TCP_UDP_CHKSUM (TX_BD_LONG_LFLAGS_TCP_UDP_CHKSUM | \ 85 TX_BD_LONG_LFLAGS_T_IP_CHKSUM) 86 87 #endif 88