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 128 51 #define VIRTIO_MAX_TX_QUEUES 128 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_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_MRG_RXBUF | \ 66 1ULL << VIRTIO_F_VERSION_1) 67 68 /* 69 * CQ function prototype 70 */ 71 void virtio_dev_cq_start(struct rte_eth_dev *dev); 72 73 /* 74 * RX/TX function prototypes 75 */ 76 void virtio_dev_rxtx_start(struct rte_eth_dev *dev); 77 78 int virtio_dev_queue_setup(struct rte_eth_dev *dev, 79 int queue_type, 80 uint16_t queue_idx, 81 uint16_t vtpci_queue_idx, 82 uint16_t nb_desc, 83 unsigned int socket_id, 84 struct virtqueue **pvq); 85 86 void virtio_dev_queue_release(struct virtqueue *vq); 87 88 int virtio_dev_rx_queue_setup(struct rte_eth_dev *dev, uint16_t rx_queue_id, 89 uint16_t nb_rx_desc, unsigned int socket_id, 90 const struct rte_eth_rxconf *rx_conf, 91 struct rte_mempool *mb_pool); 92 93 void virtio_dev_rx_queue_release(void *rxq); 94 95 int virtio_dev_tx_queue_setup(struct rte_eth_dev *dev, uint16_t tx_queue_id, 96 uint16_t nb_tx_desc, unsigned int socket_id, 97 const struct rte_eth_txconf *tx_conf); 98 99 void virtio_dev_tx_queue_release(void *txq); 100 101 uint16_t virtio_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts, 102 uint16_t nb_pkts); 103 104 uint16_t virtio_recv_mergeable_pkts(void *rx_queue, struct rte_mbuf **rx_pkts, 105 uint16_t nb_pkts); 106 107 uint16_t virtio_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts, 108 uint16_t nb_pkts); 109 110 uint16_t virtio_recv_pkts_vec(void *rx_queue, struct rte_mbuf **rx_pkts, 111 uint16_t nb_pkts); 112 113 uint16_t virtio_xmit_pkts_simple(void *tx_queue, struct rte_mbuf **tx_pkts, 114 uint16_t nb_pkts); 115 116 /* 117 * The VIRTIO_NET_F_GUEST_TSO[46] features permit the host to send us 118 * frames larger than 1514 bytes. We do not yet support software LRO 119 * via tcp_lro_rx(). 120 */ 121 #define VTNET_LRO_FEATURES (VIRTIO_NET_F_GUEST_TSO4 | \ 122 VIRTIO_NET_F_GUEST_TSO6 | VIRTIO_NET_F_GUEST_ECN) 123 124 125 #endif /* _VIRTIO_ETHDEV_H_ */ 126