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/*
* Copyright (c) 2013-2015 Brocade Communications Systems, Inc.
*
* Copyright (c) 2015 QLogic Corporation.
* All rights reserved.
* www.qlogic.com
*
* See LICENSE.bnx2x_pmd for copyright and licensing details.
*/
#ifndef _BNX2X_RXTX_H_
#define _BNX2X_RXTX_H_
#define DEFAULT_TX_FREE_THRESH 64
#define RTE_PMD_BNX2X_TX_MAX_BURST 1
/**
* Structure associated with each descriptor of the RX ring of a RX queue.
*/
struct bnx2x_rx_entry {
struct rte_mbuf *mbuf; /**< mbuf associated with RX descriptor. */
};
/**
* Structure associated with each RX queue.
*/
struct bnx2x_rx_queue {
struct rte_mempool *mb_pool; /**< mbuf pool to populate RX ring. */
union eth_rx_cqe *cq_ring; /**< RCQ ring virtual address. */
uint64_t cq_ring_phys_addr; /**< RCQ ring DMA address. */
uint64_t *rx_ring; /**< RX ring virtual address. */
uint64_t rx_ring_phys_addr; /**< RX ring DMA address. */
struct rte_mbuf **sw_ring; /**< address of RX software ring. */
struct rte_mbuf *pkt_first_seg; /**< First segment of current packet. */
struct rte_mbuf *pkt_last_seg; /**< Last segment of current packet. */
uint16_t nb_cq_pages; /**< number of RCQ pages. */
uint16_t nb_rx_desc; /**< number of RX descriptors. */
uint16_t nb_rx_pages; /**< number of RX pages. */
uint16_t rx_bd_head; /**< Index of current rx bd. */
uint16_t rx_bd_tail; /**< Index of last rx bd. */
uint16_t rx_cq_head; /**< Index of current rcq bd. */
uint16_t rx_cq_tail; /**< Index of last rcq bd. */
uint16_t queue_id; /**< RX queue index. */
uint8_t port_id; /**< Device port identifier. */
struct bnx2x_softc *sc; /**< Ptr to dev_private data. */
};
/**
* Structure associated with each TX queue.
*/
struct bnx2x_tx_queue {
/** TX ring virtual address. */
union eth_tx_bd_types *tx_ring; /**< TX ring virtual address. */
uint64_t tx_ring_phys_addr; /**< TX ring DMA address. */
struct rte_mbuf **sw_ring; /**< virtual address of SW ring. */
uint16_t tx_pkt_tail; /**< Index of current tx pkt. */
uint16_t tx_pkt_head; /**< Index of last pkt counted by txeof. */
uint16_t tx_bd_tail; /**< Index of current tx bd. */
uint16_t tx_bd_head; /**< Index of last bd counted by txeof. */
uint16_t nb_tx_desc; /**< number of TX descriptors. */
uint16_t tx_free_thresh; /**< minimum TX before freeing. */
uint16_t nb_tx_avail; /**< Number of TX descriptors available. */
uint16_t nb_tx_pages; /**< number of TX pages */
uint16_t queue_id; /**< TX queue index. */
uint8_t port_id; /**< Device port identifier. */
struct bnx2x_softc *sc; /**< Ptr to dev_private data */
};
int bnx2x_dev_rx_queue_setup(struct rte_eth_dev *dev, uint16_t rx_queue_id,
uint16_t nb_rx_desc, unsigned int socket_id,
const struct rte_eth_rxconf *rx_conf,
struct rte_mempool *mb_pool);
int bnx2x_dev_tx_queue_setup(struct rte_eth_dev *dev, uint16_t tx_queue_id,
uint16_t nb_tx_desc, unsigned int socket_id,
const struct rte_eth_txconf *tx_conf);
void bnx2x_dev_rx_queue_release(void *rxq);
void bnx2x_dev_tx_queue_release(void *txq);
int bnx2x_dev_rx_init(struct rte_eth_dev *dev);
void bnx2x_dev_clear_queues(struct rte_eth_dev *dev);
#endif /* _BNX2X_RXTX_H_ */
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