dpdk/drivers/net/virtio/virtio_ethdev.h
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   1/* SPDX-License-Identifier: BSD-3-Clause
   2 * Copyright(c) 2010-2015 Intel Corporation
   3 */
   4
   5#ifndef _VIRTIO_ETHDEV_H_
   6#define _VIRTIO_ETHDEV_H_
   7
   8#include <stdint.h>
   9
  10#include <ethdev_driver.h>
  11
  12#include "virtio.h"
  13
  14#define VIRTIO_MAX_RX_QUEUES 128U
  15#define VIRTIO_MAX_TX_QUEUES 128U
  16#define VIRTIO_MAX_MAC_ADDRS 64
  17#define VIRTIO_MIN_RX_BUFSIZE 64
  18#define VIRTIO_MAX_RX_PKTLEN  9728U
  19
  20/* Features desired/implemented by this driver. */
  21#define VIRTIO_PMD_DEFAULT_GUEST_FEATURES       \
  22        (1u << VIRTIO_NET_F_MAC           |     \
  23         1u << VIRTIO_NET_F_STATUS        |     \
  24         1u << VIRTIO_NET_F_MQ            |     \
  25         1u << VIRTIO_NET_F_CTRL_MAC_ADDR |     \
  26         1u << VIRTIO_NET_F_CTRL_VQ       |     \
  27         1u << VIRTIO_NET_F_CTRL_RX       |     \
  28         1u << VIRTIO_NET_F_CTRL_VLAN     |     \
  29         1u << VIRTIO_NET_F_MRG_RXBUF     |     \
  30         1u << VIRTIO_NET_F_MTU | \
  31         1ULL << VIRTIO_NET_F_GUEST_ANNOUNCE |  \
  32         1u << VIRTIO_RING_F_INDIRECT_DESC |    \
  33         1ULL << VIRTIO_F_VERSION_1       |     \
  34         1ULL << VIRTIO_F_IN_ORDER        |     \
  35         1ULL << VIRTIO_F_RING_PACKED     |     \
  36         1ULL << VIRTIO_F_IOMMU_PLATFORM  |     \
  37         1ULL << VIRTIO_F_ORDER_PLATFORM  |     \
  38         1ULL << VIRTIO_F_NOTIFICATION_DATA | \
  39         1ULL << VIRTIO_NET_F_SPEED_DUPLEX)
  40
  41#define VIRTIO_PMD_SUPPORTED_GUEST_FEATURES     \
  42        (VIRTIO_PMD_DEFAULT_GUEST_FEATURES |    \
  43         1u << VIRTIO_NET_F_GUEST_CSUM     |    \
  44         1u << VIRTIO_NET_F_GUEST_TSO4     |    \
  45         1u << VIRTIO_NET_F_GUEST_TSO6     |    \
  46         1u << VIRTIO_NET_F_CSUM           |    \
  47         1u << VIRTIO_NET_F_HOST_TSO4      |    \
  48         1u << VIRTIO_NET_F_HOST_TSO6)
  49
  50extern const struct eth_dev_ops virtio_user_secondary_eth_dev_ops;
  51
  52/*
  53 * CQ function prototype
  54 */
  55void virtio_dev_cq_start(struct rte_eth_dev *dev);
  56
  57/*
  58 * RX/TX function prototypes
  59 */
  60
  61int virtio_dev_rx_queue_done(void *rxq, uint16_t offset);
  62
  63int  virtio_dev_rx_queue_setup(struct rte_eth_dev *dev, uint16_t rx_queue_id,
  64                uint16_t nb_rx_desc, unsigned int socket_id,
  65                const struct rte_eth_rxconf *rx_conf,
  66                struct rte_mempool *mb_pool);
  67
  68int virtio_dev_rx_queue_setup_finish(struct rte_eth_dev *dev,
  69                                uint16_t rx_queue_id);
  70
  71int  virtio_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
  75int virtio_dev_tx_queue_setup_finish(struct rte_eth_dev *dev,
  76                                uint16_t tx_queue_id);
  77
  78uint16_t virtio_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts,
  79                uint16_t nb_pkts);
  80uint16_t virtio_recv_pkts_packed(void *rx_queue, struct rte_mbuf **rx_pkts,
  81                uint16_t nb_pkts);
  82
  83uint16_t virtio_recv_mergeable_pkts(void *rx_queue, struct rte_mbuf **rx_pkts,
  84                uint16_t nb_pkts);
  85
  86uint16_t virtio_recv_mergeable_pkts_packed(void *rx_queue,
  87                struct rte_mbuf **rx_pkts, uint16_t nb_pkts);
  88
  89uint16_t virtio_recv_pkts_inorder(void *rx_queue,
  90                struct rte_mbuf **rx_pkts, uint16_t nb_pkts);
  91
  92uint16_t virtio_xmit_pkts_prepare(void *tx_queue, struct rte_mbuf **tx_pkts,
  93                uint16_t nb_pkts);
  94
  95uint16_t virtio_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
  96                uint16_t nb_pkts);
  97uint16_t virtio_xmit_pkts_packed(void *tx_queue, struct rte_mbuf **tx_pkts,
  98                uint16_t nb_pkts);
  99
 100uint16_t virtio_xmit_pkts_inorder(void *tx_queue, struct rte_mbuf **tx_pkts,
 101                uint16_t nb_pkts);
 102
 103uint16_t virtio_recv_pkts_vec(void *rx_queue, struct rte_mbuf **rx_pkts,
 104                uint16_t nb_pkts);
 105
 106uint16_t virtio_recv_pkts_packed_vec(void *rx_queue, struct rte_mbuf **rx_pkts,
 107                uint16_t nb_pkts);
 108
 109uint16_t virtio_xmit_pkts_packed_vec(void *tx_queue, struct rte_mbuf **tx_pkts,
 110                uint16_t nb_pkts);
 111
 112int eth_virtio_dev_init(struct rte_eth_dev *eth_dev);
 113
 114void virtio_interrupt_handler(void *param);
 115
 116int virtio_dev_pause(struct rte_eth_dev *dev);
 117void virtio_dev_resume(struct rte_eth_dev *dev);
 118int virtio_dev_stop(struct rte_eth_dev *dev);
 119int virtio_dev_close(struct rte_eth_dev *dev);
 120int virtio_inject_pkts(struct rte_eth_dev *dev, struct rte_mbuf **tx_pkts,
 121                int nb_pkts);
 122
 123bool virtio_rx_check_scatter(uint16_t max_rx_pkt_len, uint16_t rx_buf_size,
 124                        bool rx_scatter_enabled, const char **error);
 125
 126uint16_t virtio_rx_mem_pool_buf_size(struct rte_mempool *mp);
 127
 128#endif /* _VIRTIO_ETHDEV_H_ */
 129