--- /dev/null
+/*-
+ * BSD LICENSE
+ *
+ * Copyright(c) 2010-2015 Intel Corporation. All rights reserved.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * * Neither the name of Intel Corporation nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _I40E_RXTX_H_
+#define _I40E_RXTX_H_
+
+/**
+ * 32 bits tx flags, high 16 bits for L2TAG1 (VLAN),
+ * low 16 bits for others.
+ */
+#define I40E_TX_FLAG_L2TAG1_SHIFT 16
+#define I40E_TX_FLAG_L2TAG1_MASK 0xffff0000
+#define I40E_TX_FLAG_CSUM ((uint32_t)(1 << 0))
+#define I40E_TX_FLAG_INSERT_VLAN ((uint32_t)(1 << 1))
+#define I40E_TX_FLAG_TSYN ((uint32_t)(1 << 2))
+
+#define RTE_PMD_I40E_RX_MAX_BURST 32
+#define RTE_PMD_I40E_TX_MAX_BURST 32
+
+#define RTE_I40E_VPMD_RX_BURST 32
+#define RTE_I40E_VPMD_TX_BURST 32
+#define RTE_I40E_RXQ_REARM_THRESH 32
+#define RTE_I40E_MAX_RX_BURST RTE_I40E_RXQ_REARM_THRESH
+#define RTE_I40E_TX_MAX_FREE_BUF_SZ 64
+#define RTE_I40E_DESCS_PER_LOOP 4
+
+#define I40E_RXBUF_SZ_1024 1024
+#define I40E_RXBUF_SZ_2048 2048
+
+/* In none-PXE mode QLEN must be whole number of 32 descriptors. */
+#define I40E_ALIGN_RING_DESC 32
+
+#define I40E_MIN_RING_DESC 64
+#define I40E_MAX_RING_DESC 4096
+
+#undef container_of
+#define container_of(ptr, type, member) ({ \
+ typeof(((type *)0)->member)(*__mptr) = (ptr); \
+ (type *)((char *)__mptr - offsetof(type, member)); })
+
+#define I40E_TD_CMD (I40E_TX_DESC_CMD_ICRC |\
+ I40E_TX_DESC_CMD_EOP)
+
+enum i40e_header_split_mode {
+ i40e_header_split_none = 0,
+ i40e_header_split_enabled = 1,
+ i40e_header_split_always = 2,
+ i40e_header_split_reserved
+};
+
+#define I40E_HEADER_SPLIT_NONE ((uint8_t)0)
+#define I40E_HEADER_SPLIT_L2 ((uint8_t)(1 << 0))
+#define I40E_HEADER_SPLIT_IP ((uint8_t)(1 << 1))
+#define I40E_HEADER_SPLIT_UDP_TCP ((uint8_t)(1 << 2))
+#define I40E_HEADER_SPLIT_SCTP ((uint8_t)(1 << 3))
+#define I40E_HEADER_SPLIT_ALL (I40E_HEADER_SPLIT_L2 | \
+ I40E_HEADER_SPLIT_IP | \
+ I40E_HEADER_SPLIT_UDP_TCP | \
+ I40E_HEADER_SPLIT_SCTP)
+
+/* HW desc structure, both 16-byte and 32-byte types are supported */
+#ifdef RTE_LIBRTE_I40E_16BYTE_RX_DESC
+#define i40e_rx_desc i40e_16byte_rx_desc
+#else
+#define i40e_rx_desc i40e_32byte_rx_desc
+#endif
+
+struct i40e_rx_entry {
+ struct rte_mbuf *mbuf;
+};
+
+/*
+ * Structure associated with each RX queue.
+ */
+struct i40e_rx_queue {
+ struct rte_mempool *mp; /**< mbuf pool to populate RX ring */
+ volatile union i40e_rx_desc *rx_ring;/**< RX ring virtual address */
+ uint64_t rx_ring_phys_addr; /**< RX ring DMA address */
+ struct i40e_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 */
+#ifdef RTE_LIBRTE_I40E_RX_ALLOW_BULK_ALLOC
+ 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[RTE_PMD_I40E_RX_MAX_BURST * 2];
+#endif
+
+ 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 i40e_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 */
+ uint8_t hs_mode; /* Header Split mode */
+ bool q_set; /**< indicate if rx queue has been configured */
+ bool rx_deferred_start; /**< don't start this queue in dev start */
+ uint16_t rx_using_sse; /**<flag indicate the usage of vPMD for rx */
+ uint8_t dcb_tc; /**< Traffic class of rx queue */
+};
+
+struct i40e_tx_entry {
+ struct rte_mbuf *mbuf;
+ uint16_t next_id;
+ uint16_t last_id;
+};
+
+/*
+ * Structure associated with each TX queue.
+ */
+struct i40e_tx_queue {
+ uint16_t nb_tx_desc; /**< number of TX descriptors */
+ uint64_t tx_ring_phys_addr; /**< TX ring DMA address */
+ volatile struct i40e_tx_desc *tx_ring; /**< TX ring virtual address */
+ struct i40e_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. */
+ uint16_t reg_idx;
+ uint32_t txq_flags;
+ struct i40e_vsi *vsi; /**< the VSI this queue belongs to */
+ uint16_t tx_next_dd;
+ uint16_t tx_next_rs;
+ bool q_set; /**< indicate if tx queue has been configured */
+ bool tx_deferred_start; /**< don't start this queue in dev start */
+ uint8_t dcb_tc; /**< Traffic class of tx queue */
+};
+
+/** Offload features */
+union i40e_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 i40e_dev_rx_queue_start(struct rte_eth_dev *dev, uint16_t rx_queue_id);
+int i40e_dev_rx_queue_stop(struct rte_eth_dev *dev, uint16_t rx_queue_id);
+int i40e_dev_tx_queue_start(struct rte_eth_dev *dev, uint16_t tx_queue_id);
+int i40e_dev_tx_queue_stop(struct rte_eth_dev *dev, uint16_t tx_queue_id);
+const uint32_t *i40e_dev_supported_ptypes_get(struct rte_eth_dev *dev);
+int i40e_dev_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 i40e_dev_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);
+void i40e_dev_rx_queue_release(void *rxq);
+void i40e_dev_tx_queue_release(void *txq);
+uint16_t i40e_recv_pkts(void *rx_queue,
+ struct rte_mbuf **rx_pkts,
+ uint16_t nb_pkts);
+uint16_t i40e_recv_scattered_pkts(void *rx_queue,
+ struct rte_mbuf **rx_pkts,
+ uint16_t nb_pkts);
+uint16_t i40e_xmit_pkts(void *tx_queue,
+ struct rte_mbuf **tx_pkts,
+ uint16_t nb_pkts);
+int i40e_tx_queue_init(struct i40e_tx_queue *txq);
+int i40e_rx_queue_init(struct i40e_rx_queue *rxq);
+void i40e_free_tx_resources(struct i40e_tx_queue *txq);
+void i40e_free_rx_resources(struct i40e_rx_queue *rxq);
+void i40e_dev_clear_queues(struct rte_eth_dev *dev);
+void i40e_dev_free_queues(struct rte_eth_dev *dev);
+void i40e_reset_rx_queue(struct i40e_rx_queue *rxq);
+void i40e_reset_tx_queue(struct i40e_tx_queue *txq);
+void i40e_tx_queue_release_mbufs(struct i40e_tx_queue *txq);
+int i40e_alloc_rx_queue_mbufs(struct i40e_rx_queue *rxq);
+void i40e_rx_queue_release_mbufs(struct i40e_rx_queue *rxq);
+
+uint32_t i40e_dev_rx_queue_count(struct rte_eth_dev *dev,
+ uint16_t rx_queue_id);
+int i40e_dev_rx_descriptor_done(void *rx_queue, uint16_t offset);
+
+uint16_t i40e_recv_pkts_vec(void *rx_queue, struct rte_mbuf **rx_pkts,
+ uint16_t nb_pkts);
+uint16_t i40e_recv_scattered_pkts_vec(void *rx_queue,
+ struct rte_mbuf **rx_pkts,
+ uint16_t nb_pkts);
+int i40e_rx_vec_dev_conf_condition_check(struct rte_eth_dev *dev);
+int i40e_rxq_vec_setup(struct i40e_rx_queue *rxq);
+int i40e_txq_vec_setup(struct i40e_tx_queue *txq);
+void i40e_rx_queue_release_mbufs_vec(struct i40e_rx_queue *rxq);
+uint16_t i40e_xmit_pkts_vec(void *tx_queue, struct rte_mbuf **tx_pkts,
+ uint16_t nb_pkts);
+void i40e_set_rx_function(struct rte_eth_dev *dev);
+void i40e_set_tx_function_flag(struct rte_eth_dev *dev,
+ struct i40e_tx_queue *txq);
+void i40e_set_tx_function(struct rte_eth_dev *dev);
+
+#endif /* _I40E_RXTX_H_ */
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