2 * Copyright (c) 2013-2015 Brocade Communications Systems, Inc.
4 * Copyright (c) 2015 QLogic Corporation.
8 * See LICENSE.bnx2x_pmd for copyright and licensing details.
11 #ifndef _BNX2X_RXTX_H_
12 #define _BNX2X_RXTX_H_
15 #define DEFAULT_RX_FREE_THRESH 0
16 #define DEFAULT_TX_FREE_THRESH 512
17 #define RTE_PMD_BNX2X_TX_MAX_BURST 1
20 * Structure associated with each descriptor of the RX ring of a RX queue.
22 struct bnx2x_rx_entry {
23 struct rte_mbuf *mbuf; /**< mbuf associated with RX descriptor. */
27 * Structure associated with each RX queue.
29 struct bnx2x_rx_queue {
30 struct rte_mempool *mb_pool; /**< mbuf pool to populate RX ring. */
31 union eth_rx_cqe *cq_ring; /**< RCQ ring virtual address. */
32 uint64_t cq_ring_phys_addr; /**< RCQ ring DMA address. */
33 uint64_t *rx_ring; /**< RX ring virtual address. */
34 uint64_t rx_ring_phys_addr; /**< RX ring DMA address. */
35 struct rte_mbuf **sw_ring; /**< address of RX software ring. */
36 struct rte_mbuf *pkt_first_seg; /**< First segment of current packet. */
37 struct rte_mbuf *pkt_last_seg; /**< Last segment of current packet. */
38 uint16_t nb_cq_pages; /**< number of RCQ pages. */
39 uint16_t nb_rx_desc; /**< number of RX descriptors. */
40 uint16_t nb_rx_pages; /**< number of RX pages. */
41 uint16_t rx_bd_head; /**< Index of current rx bd. */
42 uint16_t rx_bd_tail; /**< Index of last rx bd. */
43 uint16_t rx_cq_head; /**< Index of current rcq bd. */
44 uint16_t rx_cq_tail; /**< Index of last rcq bd. */
45 uint16_t nb_rx_hold; /**< number of held free RX desc. */
46 uint16_t rx_free_thresh; /**< max free RX desc to hold. */
47 uint16_t queue_id; /**< RX queue index. */
48 uint8_t port_id; /**< Device port identifier. */
49 uint8_t crc_len; /**< 0 if CRC stripped, 4 otherwise. */
50 struct bnx2x_softc *sc; /**< Ptr to dev_private data. */
51 uint64_t rx_mbuf_alloc; /**< Number of allocated mbufs. */
55 * Structure associated with each TX queue.
57 struct bnx2x_tx_queue {
58 /** TX ring virtual address. */
59 union eth_tx_bd_types *tx_ring; /**< TX ring virtual address. */
60 uint64_t tx_ring_phys_addr; /**< TX ring DMA address. */
61 struct rte_mbuf **sw_ring; /**< virtual address of SW ring. */
62 uint16_t tx_pkt_tail; /**< Index of current tx pkt. */
63 uint16_t tx_pkt_head; /**< Index of last pkt counted by txeof. */
64 uint16_t tx_bd_tail; /**< Index of current tx bd. */
65 uint16_t tx_bd_head; /**< Index of last bd counted by txeof. */
66 uint16_t nb_tx_desc; /**< number of TX descriptors. */
67 uint16_t tx_free_thresh; /**< minimum TX before freeing. */
68 uint16_t nb_tx_avail; /**< Number of TX descriptors available. */
69 uint16_t nb_tx_pages; /**< number of TX pages */
70 uint16_t queue_id; /**< TX queue index. */
71 uint8_t port_id; /**< Device port identifier. */
72 struct bnx2x_softc *sc; /**< Ptr to dev_private data */
75 int bnx2x_dev_rx_queue_setup(struct rte_eth_dev *dev, uint16_t rx_queue_id,
76 uint16_t nb_rx_desc, unsigned int socket_id,
77 const struct rte_eth_rxconf *rx_conf,
78 struct rte_mempool *mb_pool);
80 int bnx2x_dev_tx_queue_setup(struct rte_eth_dev *dev, uint16_t tx_queue_id,
81 uint16_t nb_tx_desc, unsigned int socket_id,
82 const struct rte_eth_txconf *tx_conf);
84 void bnx2x_dev_rx_queue_release(void *rxq);
85 void bnx2x_dev_tx_queue_release(void *txq);
86 int bnx2x_dev_rx_init(struct rte_eth_dev *dev);
87 void bnx2x_dev_clear_queues(struct rte_eth_dev *dev);
89 #endif /* _BNX2X_RXTX_H_ */