1 /*- 2 * BSD LICENSE 3 * 4 * Copyright(c) 2010-2017 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 _MAIN_H_ 35 #define _MAIN_H_ 36 37 #include <sys/queue.h> 38 39 #include <rte_ether.h> 40 41 /* Macros for printing using RTE_LOG */ 42 #define RTE_LOGTYPE_VHOST_CONFIG RTE_LOGTYPE_USER1 43 #define RTE_LOGTYPE_VHOST_DATA RTE_LOGTYPE_USER2 44 #define RTE_LOGTYPE_VHOST_PORT RTE_LOGTYPE_USER3 45 46 enum {VIRTIO_RXQ, VIRTIO_TXQ, VIRTIO_QNUM}; 47 48 #define MAX_PKT_BURST 32 /* Max burst size for RX/TX */ 49 50 struct device_statistics { 51 uint64_t tx; 52 uint64_t tx_total; 53 rte_atomic64_t rx_atomic; 54 rte_atomic64_t rx_total_atomic; 55 }; 56 57 struct vhost_queue { 58 struct rte_vhost_vring vr; 59 uint16_t last_avail_idx; 60 uint16_t last_used_idx; 61 }; 62 63 struct vhost_dev { 64 /**< Number of memory regions for gpa to hpa translation. */ 65 uint32_t nregions_hpa; 66 /**< Device MAC address (Obtained on first TX packet). */ 67 struct ether_addr mac_address; 68 /**< RX VMDQ queue number. */ 69 uint16_t vmdq_rx_q; 70 /**< Vlan tag assigned to the pool */ 71 uint32_t vlan_tag; 72 /**< Data core that the device is added to. */ 73 uint16_t coreid; 74 /**< A device is set as ready if the MAC address has been set. */ 75 volatile uint8_t ready; 76 /**< Device is marked for removal from the data core. */ 77 volatile uint8_t remove; 78 79 int vid; 80 uint64_t features; 81 size_t hdr_len; 82 uint16_t nr_vrings; 83 struct rte_vhost_memory *mem; 84 struct device_statistics stats; 85 TAILQ_ENTRY(vhost_dev) global_vdev_entry; 86 TAILQ_ENTRY(vhost_dev) lcore_vdev_entry; 87 88 #define MAX_QUEUE_PAIRS 4 89 struct vhost_queue queues[MAX_QUEUE_PAIRS * 2]; 90 } __rte_cache_aligned; 91 92 TAILQ_HEAD(vhost_dev_tailq_list, vhost_dev); 93 94 95 #define REQUEST_DEV_REMOVAL 1 96 #define ACK_DEV_REMOVAL 0 97 98 /* 99 * Structure containing data core specific information. 100 */ 101 struct lcore_info { 102 uint32_t device_num; 103 104 /* Flag to synchronize device removal. */ 105 volatile uint8_t dev_removal_flag; 106 107 struct vhost_dev_tailq_list vdev_list; 108 }; 109 110 /* we implement non-extra virtio net features */ 111 #define VIRTIO_NET_FEATURES 0 112 113 void vs_vhost_net_setup(struct vhost_dev *dev); 114 void vs_vhost_net_remove(struct vhost_dev *dev); 115 uint16_t vs_enqueue_pkts(struct vhost_dev *dev, uint16_t queue_id, 116 struct rte_mbuf **pkts, uint32_t count); 117 118 uint16_t vs_dequeue_pkts(struct vhost_dev *dev, uint16_t queue_id, 119 struct rte_mempool *mbuf_pool, 120 struct rte_mbuf **pkts, uint16_t count); 121 #endif /* _MAIN_H_ */ 122