1 /* SPDX-License-Identifier: BSD-3-Clause 2 * Copyright (c) 2013-2015 Brocade Communications Systems, Inc. 3 * Copyright (c) 2015-2018 Cavium Inc. 4 * All rights reserved. 5 * www.cavium.com 6 */ 7 8 #ifndef _BNX2X_RXTX_H_ 9 #define _BNX2X_RXTX_H_ 10 11 #define DEFAULT_TX_FREE_THRESH 64 12 #define RTE_PMD_BNX2X_TX_MAX_BURST 1 13 14 /** 15 * Structure associated with each descriptor of the RX ring of a RX queue. 16 */ 17 struct bnx2x_rx_entry { 18 struct rte_mbuf *mbuf; /**< mbuf associated with RX descriptor. */ 19 }; 20 21 /** 22 * Structure associated with each RX queue. 23 */ 24 struct bnx2x_rx_queue { 25 struct rte_mempool *mb_pool; /**< mbuf pool to populate RX ring. */ 26 union eth_rx_cqe *cq_ring; /**< RCQ ring virtual address. */ 27 uint64_t cq_ring_phys_addr; /**< RCQ ring DMA address. */ 28 uint64_t *rx_ring; /**< RX ring virtual address. */ 29 uint64_t rx_ring_phys_addr; /**< RX ring DMA address. */ 30 struct rte_mbuf **sw_ring; /**< address of RX software ring. */ 31 struct rte_mbuf *pkt_first_seg; /**< First segment of current packet. */ 32 struct rte_mbuf *pkt_last_seg; /**< Last segment of current packet. */ 33 uint16_t nb_cq_pages; /**< number of RCQ pages. */ 34 uint16_t nb_rx_desc; /**< number of RX descriptors. */ 35 uint16_t nb_rx_pages; /**< number of RX pages. */ 36 uint16_t rx_bd_head; /**< Index of current rx bd. */ 37 uint16_t rx_bd_tail; /**< Index of last rx bd. */ 38 uint16_t rx_cq_head; /**< Index of current rcq bd. */ 39 uint16_t rx_cq_tail; /**< Index of last rcq bd. */ 40 uint16_t queue_id; /**< RX queue index. */ 41 uint16_t port_id; /**< Device port identifier. */ 42 struct bnx2x_softc *sc; /**< Ptr to dev_private data. */ 43 }; 44 45 /** 46 * Structure associated with each TX queue. 47 */ 48 struct bnx2x_tx_queue { 49 /** TX ring virtual address. */ 50 union eth_tx_bd_types *tx_ring; /**< TX ring virtual address. */ 51 uint64_t tx_ring_phys_addr; /**< TX ring DMA address. */ 52 struct rte_mbuf **sw_ring; /**< virtual address of SW ring. */ 53 uint16_t tx_pkt_tail; /**< Index of current tx pkt. */ 54 uint16_t tx_pkt_head; /**< Index of last pkt counted by txeof. */ 55 uint16_t tx_bd_tail; /**< Index of current tx bd. */ 56 uint16_t tx_bd_head; /**< Index of last bd counted by txeof. */ 57 uint16_t nb_tx_desc; /**< number of TX descriptors. */ 58 uint16_t tx_free_thresh; /**< minimum TX before freeing. */ 59 uint16_t nb_tx_avail; /**< Number of TX descriptors available. */ 60 uint16_t nb_tx_pages; /**< number of TX pages */ 61 uint16_t queue_id; /**< TX queue index. */ 62 uint16_t port_id; /**< Device port identifier. */ 63 struct bnx2x_softc *sc; /**< Ptr to dev_private data */ 64 }; 65 66 int bnx2x_dev_rx_queue_setup(struct rte_eth_dev *dev, uint16_t rx_queue_id, 67 uint16_t nb_rx_desc, unsigned int socket_id, 68 const struct rte_eth_rxconf *rx_conf, 69 struct rte_mempool *mb_pool); 70 71 int bnx2x_dev_tx_queue_setup(struct rte_eth_dev *dev, uint16_t tx_queue_id, 72 uint16_t nb_tx_desc, unsigned int socket_id, 73 const struct rte_eth_txconf *tx_conf); 74 75 void bnx2x_dev_rx_queue_release(void *rxq); 76 void bnx2x_dev_tx_queue_release(void *txq); 77 void bnx2x_dev_rxtx_init(struct rte_eth_dev *dev); 78 void bnx2x_dev_rxtx_init_dummy(struct rte_eth_dev *dev); 79 void bnx2x_dev_clear_queues(struct rte_eth_dev *dev); 80 81 #endif /* _BNX2X_RXTX_H_ */ 82