/* SPDX-License-Identifier: BSD-3-Clause * Copyright(c) 2018 Intel Corporation */ #ifndef _ICE_RXTX_H_ #define _ICE_RXTX_H_ #include "ice_ethdev.h" #define ICE_ALIGN_RING_DESC 32 #define ICE_MIN_RING_DESC 64 #define ICE_MAX_RING_DESC 4096 #define ICE_DMA_MEM_ALIGN 4096 #define ICE_RING_BASE_ALIGN 128 #define ICE_RX_MAX_BURST 32 #define ICE_TX_MAX_BURST 32 #define ICE_CHK_Q_ENA_COUNT 100 #define ICE_CHK_Q_ENA_INTERVAL_US 100 #ifdef RTE_LIBRTE_ICE_16BYTE_RX_DESC #define ice_rx_desc ice_16byte_rx_desc #else #define ice_rx_desc ice_32byte_rx_desc #endif #define ICE_SUPPORT_CHAIN_NUM 5 #define ICE_TD_CMD ICE_TX_DESC_CMD_EOP #define ICE_VPMD_RX_BURST 32 #define ICE_VPMD_TX_BURST 32 #define ICE_RXQ_REARM_THRESH 32 #define ICE_MAX_RX_BURST ICE_RXQ_REARM_THRESH #define ICE_TX_MAX_FREE_BUF_SZ 64 #define ICE_DESCS_PER_LOOP 4 typedef void (*ice_rx_release_mbufs_t)(struct ice_rx_queue *rxq); typedef void (*ice_tx_release_mbufs_t)(struct ice_tx_queue *txq); struct ice_rx_entry { struct rte_mbuf *mbuf; }; struct ice_rx_queue { struct rte_mempool *mp; /* mbuf pool to populate RX ring */ volatile union ice_rx_desc *rx_ring;/* RX ring virtual address */ rte_iova_t rx_ring_dma; /* RX ring DMA address */ struct ice_rx_entry *sw_ring; /* address of RX soft ring */ uint16_t nb_rx_desc; /* number of RX descriptors */ uint16_t rx_free_thresh; /* max free RX desc to hold */ uint16_t rx_tail; /* current value of tail */ uint16_t nb_rx_hold; /* number of held free RX desc */ struct rte_mbuf *pkt_first_seg; /**< first segment of current packet */ struct rte_mbuf *pkt_last_seg; /**< last segment of current packet */ uint16_t rx_nb_avail; /**< number of staged packets ready */ uint16_t rx_next_avail; /**< index of next staged packets */ uint16_t rx_free_trigger; /**< triggers rx buffer allocation */ struct rte_mbuf fake_mbuf; /**< dummy mbuf */ struct rte_mbuf *rx_stage[ICE_RX_MAX_BURST * 2]; uint16_t rxrearm_nb; /**< number of remaining to be re-armed */ uint16_t rxrearm_start; /**< the idx we start the re-arming from */ uint64_t mbuf_initializer; /**< value to init mbufs */ uint8_t port_id; /* device port ID */ uint8_t crc_len; /* 0 if CRC stripped, 4 otherwise */ uint16_t queue_id; /* RX queue index */ uint16_t reg_idx; /* RX queue register index */ uint8_t drop_en; /* if not 0, set register bit */ volatile uint8_t *qrx_tail; /* register address of tail */ struct ice_vsi *vsi; /* the VSI this queue belongs to */ uint16_t rx_buf_len; /* The packet buffer size */ uint16_t rx_hdr_len; /* The header buffer size */ uint16_t max_pkt_len; /* Maximum packet length */ bool q_set; /* indicate if rx queue has been configured */ bool rx_deferred_start; /* don't start this queue in dev start */ ice_rx_release_mbufs_t rx_rel_mbufs; }; struct ice_tx_entry { struct rte_mbuf *mbuf; uint16_t next_id; uint16_t last_id; }; struct ice_tx_queue { uint16_t nb_tx_desc; /* number of TX descriptors */ rte_iova_t tx_ring_dma; /* TX ring DMA address */ volatile struct ice_tx_desc *tx_ring; /* TX ring virtual address */ struct ice_tx_entry *sw_ring; /* virtual address of SW ring */ uint16_t tx_tail; /* current value of tail register */ volatile uint8_t *qtx_tail; /* register address of tail */ uint16_t nb_tx_used; /* number of TX desc used since RS bit set */ /* index to last TX descriptor to have been cleaned */ uint16_t last_desc_cleaned; /* Total number of TX descriptors ready to be allocated. */ uint16_t nb_tx_free; /* Start freeing TX buffers if there are less free descriptors than * this value. */ uint16_t tx_free_thresh; /* Number of TX descriptors to use before RS bit is set. */ uint16_t tx_rs_thresh; uint8_t pthresh; /**< Prefetch threshold register. */ uint8_t hthresh; /**< Host threshold register. */ uint8_t wthresh; /**< Write-back threshold reg. */ uint8_t port_id; /* Device port identifier. */ uint16_t queue_id; /* TX queue index. */ uint32_t q_teid; /* TX schedule node id. */ uint16_t reg_idx; uint64_t offloads; struct ice_vsi *vsi; /* the VSI this queue belongs to */ uint16_t tx_next_dd; uint16_t tx_next_rs; bool tx_deferred_start; /* don't start this queue in dev start */ bool q_set; /* indicate if tx queue has been configured */ ice_tx_release_mbufs_t tx_rel_mbufs; }; /* Offload features */ union ice_tx_offload { uint64_t data; struct { uint64_t l2_len:7; /* L2 (MAC) Header Length. */ uint64_t l3_len:9; /* L3 (IP) Header Length. */ uint64_t l4_len:8; /* L4 Header Length. */ uint64_t tso_segsz:16; /* TCP TSO segment size */ uint64_t outer_l2_len:8; /* outer L2 Header Length */ uint64_t outer_l3_len:16; /* outer L3 Header Length */ }; }; int ice_rx_queue_setup(struct rte_eth_dev *dev, uint16_t queue_idx, uint16_t nb_desc, unsigned int socket_id, const struct rte_eth_rxconf *rx_conf, struct rte_mempool *mp); int ice_tx_queue_setup(struct rte_eth_dev *dev, uint16_t queue_idx, uint16_t nb_desc, unsigned int socket_id, const struct rte_eth_txconf *tx_conf); int ice_rx_queue_start(struct rte_eth_dev *dev, uint16_t rx_queue_id); int ice_rx_queue_stop(struct rte_eth_dev *dev, uint16_t rx_queue_id); int ice_tx_queue_start(struct rte_eth_dev *dev, uint16_t tx_queue_id); int ice_tx_queue_stop(struct rte_eth_dev *dev, uint16_t tx_queue_id); void ice_rx_queue_release(void *rxq); void ice_tx_queue_release(void *txq); void ice_clear_queues(struct rte_eth_dev *dev); void ice_free_queues(struct rte_eth_dev *dev); uint16_t ice_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts, uint16_t nb_pkts); uint16_t ice_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts, uint16_t nb_pkts); void ice_set_rx_function(struct rte_eth_dev *dev); uint16_t ice_prep_pkts(__rte_unused void *tx_queue, struct rte_mbuf **tx_pkts, uint16_t nb_pkts); void ice_set_tx_function_flag(struct rte_eth_dev *dev, struct ice_tx_queue *txq); void ice_set_tx_function(struct rte_eth_dev *dev); uint32_t ice_rx_queue_count(struct rte_eth_dev *dev, uint16_t rx_queue_id); void ice_rxq_info_get(struct rte_eth_dev *dev, uint16_t queue_id, struct rte_eth_rxq_info *qinfo); void ice_txq_info_get(struct rte_eth_dev *dev, uint16_t queue_id, struct rte_eth_txq_info *qinfo); int ice_rx_descriptor_status(void *rx_queue, uint16_t offset); int ice_tx_descriptor_status(void *tx_queue, uint16_t offset); void ice_set_default_ptype_table(struct rte_eth_dev *dev); const uint32_t *ice_dev_supported_ptypes_get(struct rte_eth_dev *dev); int ice_rx_vec_dev_check(struct rte_eth_dev *dev); int ice_tx_vec_dev_check(struct rte_eth_dev *dev); int ice_rxq_vec_setup(struct ice_rx_queue *rxq); int ice_txq_vec_setup(struct ice_tx_queue *txq); uint16_t ice_recv_pkts_vec(void *rx_queue, struct rte_mbuf **rx_pkts, uint16_t nb_pkts); uint16_t ice_recv_scattered_pkts_vec(void *rx_queue, struct rte_mbuf **rx_pkts, uint16_t nb_pkts); uint16_t ice_xmit_pkts_vec(void *tx_queue, struct rte_mbuf **tx_pkts, uint16_t nb_pkts); uint16_t ice_recv_pkts_vec_avx2(void *rx_queue, struct rte_mbuf **rx_pkts, uint16_t nb_pkts); uint16_t ice_recv_scattered_pkts_vec_avx2(void *rx_queue, struct rte_mbuf **rx_pkts, uint16_t nb_pkts); uint16_t ice_xmit_pkts_vec_avx2(void *tx_queue, struct rte_mbuf **tx_pkts, uint16_t nb_pkts); #endif /* _ICE_RXTX_H_ */