ceph/src/dpdk/drivers/net/virtio/virtio_ethdev.h

   1 /*-
   2  *   BSD LICENSE
   3  *
   4  *   Copyright(c) 2010-2015 Intel Corporation. All rights reserved.
   5  *   All rights reserved.
   6  *
   7  *   Redistribution and use in source and binary forms, with or without
   8  *   modification, are permitted provided that the following conditions
   9  *   are met:
  10  *
  11  *     * Redistributions of source code must retain the above copyright
  12  *       notice, this list of conditions and the following disclaimer.
  13  *     * Redistributions in binary form must reproduce the above copyright
  14  *       notice, this list of conditions and the following disclaimer in
  15  *       the documentation and/or other materials provided with the
  16  *       distribution.
  17  *     * Neither the name of Intel Corporation nor the names of its
  18  *       contributors may be used to endorse or promote products derived
  19  *       from this software without specific prior written permission.
  20  *
  21  *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  22  *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  23  *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  24  *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  25  *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  26  *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  27  *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  28  *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  29  *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  30  *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  31  *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  32  */
  33
  34 #ifndef _VIRTIO_ETHDEV_H_
  35 #define _VIRTIO_ETHDEV_H_
  36
  37 #include <stdint.h>
  38
  39 #include "virtio_pci.h"
  40
  41 #define SPEED_10        10
  42 #define SPEED_100       100
  43 #define SPEED_1000      1000
  44 #define SPEED_10G       10000
  45
  46 #ifndef PAGE_SIZE
  47 #define PAGE_SIZE 4096
  48 #endif
  49
  50 #define VIRTIO_MAX_RX_QUEUES 128U
  51 #define VIRTIO_MAX_TX_QUEUES 128U
  52 #define VIRTIO_MAX_MAC_ADDRS 64
  53 #define VIRTIO_MIN_RX_BUFSIZE 64
  54 #define VIRTIO_MAX_RX_PKTLEN  9728
  55
  56 /* Features desired/implemented by this driver. */
  57 #define VIRTIO_PMD_DEFAULT_GUEST_FEATURES       \
  58         (1u << VIRTIO_NET_F_MAC           |     \
  59          1u << VIRTIO_NET_F_STATUS        |     \
  60          1u << VIRTIO_NET_F_MQ            |     \
  61          1u << VIRTIO_NET_F_CTRL_MAC_ADDR |     \
  62          1u << VIRTIO_NET_F_CTRL_VQ       |     \
  63          1u << VIRTIO_NET_F_CTRL_RX       |     \
  64          1u << VIRTIO_NET_F_CTRL_VLAN     |     \
  65          1u << VIRTIO_NET_F_CSUM          |     \
  66          1u << VIRTIO_NET_F_HOST_TSO4     |     \
  67          1u << VIRTIO_NET_F_HOST_TSO6     |     \
  68          1u << VIRTIO_NET_F_MRG_RXBUF     |     \
  69          1u << VIRTIO_RING_F_INDIRECT_DESC |    \
  70          1ULL << VIRTIO_F_VERSION_1       |     \
  71          1ULL << VIRTIO_F_IOMMU_PLATFORM)
  72
  73 /*
  74  * CQ function prototype
  75  */
  76 void virtio_dev_cq_start(struct rte_eth_dev *dev);
  77
  78 /*
  79  * RX/TX function prototypes
  80  */
  81 int  virtio_dev_rx_queue_setup(struct rte_eth_dev *dev, uint16_t rx_queue_id,
  82                 uint16_t nb_rx_desc, unsigned int socket_id,
  83                 const struct rte_eth_rxconf *rx_conf,
  84                 struct rte_mempool *mb_pool);
  85
  86 int  virtio_dev_tx_queue_setup(struct rte_eth_dev *dev, uint16_t tx_queue_id,
  87                 uint16_t nb_tx_desc, unsigned int socket_id,
  88                 const struct rte_eth_txconf *tx_conf);
  89
  90 uint16_t virtio_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts,
  91                 uint16_t nb_pkts);
  92
  93 uint16_t virtio_recv_mergeable_pkts(void *rx_queue, struct rte_mbuf **rx_pkts,
  94                 uint16_t nb_pkts);
  95
  96 uint16_t virtio_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
  97                 uint16_t nb_pkts);
  98
  99 uint16_t virtio_recv_pkts_vec(void *rx_queue, struct rte_mbuf **rx_pkts,
 100                 uint16_t nb_pkts);
 101
 102 uint16_t virtio_xmit_pkts_simple(void *tx_queue, struct rte_mbuf **tx_pkts,
 103                 uint16_t nb_pkts);
 104
 105 int eth_virtio_dev_init(struct rte_eth_dev *eth_dev);
 106
 107 #endif /* _VIRTIO_ETHDEV_H_ */