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/*-
* BSD LICENSE
*
* Copyright(c) 2010-2017 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 _MAIN_H_
#define _MAIN_H_
#include <sys/queue.h>
#include <rte_ether.h>
/* Macros for printing using RTE_LOG */
#define RTE_LOGTYPE_VHOST_CONFIG RTE_LOGTYPE_USER1
#define RTE_LOGTYPE_VHOST_DATA RTE_LOGTYPE_USER2
#define RTE_LOGTYPE_VHOST_PORT RTE_LOGTYPE_USER3
enum {VIRTIO_RXQ, VIRTIO_TXQ, VIRTIO_QNUM};
#define MAX_PKT_BURST 32 /* Max burst size for RX/TX */
struct device_statistics {
uint64_t tx;
uint64_t tx_total;
rte_atomic64_t rx_atomic;
rte_atomic64_t rx_total_atomic;
};
struct vhost_queue {
struct rte_vhost_vring vr;
uint16_t last_avail_idx;
uint16_t last_used_idx;
};
struct vhost_dev {
/**< Number of memory regions for gpa to hpa translation. */
uint32_t nregions_hpa;
/**< Device MAC address (Obtained on first TX packet). */
struct ether_addr mac_address;
/**< RX VMDQ queue number. */
uint16_t vmdq_rx_q;
/**< Vlan tag assigned to the pool */
uint32_t vlan_tag;
/**< Data core that the device is added to. */
uint16_t coreid;
/**< A device is set as ready if the MAC address has been set. */
volatile uint8_t ready;
/**< Device is marked for removal from the data core. */
volatile uint8_t remove;
int vid;
uint64_t features;
size_t hdr_len;
uint16_t nr_vrings;
struct rte_vhost_memory *mem;
struct device_statistics stats;
TAILQ_ENTRY(vhost_dev) global_vdev_entry;
TAILQ_ENTRY(vhost_dev) lcore_vdev_entry;
#define MAX_QUEUE_PAIRS 4
struct vhost_queue queues[MAX_QUEUE_PAIRS * 2];
} __rte_cache_aligned;
TAILQ_HEAD(vhost_dev_tailq_list, vhost_dev);
#define REQUEST_DEV_REMOVAL 1
#define ACK_DEV_REMOVAL 0
/*
* Structure containing data core specific information.
*/
struct lcore_info {
uint32_t device_num;
/* Flag to synchronize device removal. */
volatile uint8_t dev_removal_flag;
struct vhost_dev_tailq_list vdev_list;
};
/* we implement non-extra virtio net features */
#define VIRTIO_NET_FEATURES 0
void vs_vhost_net_setup(struct vhost_dev *dev);
void vs_vhost_net_remove(struct vhost_dev *dev);
uint16_t vs_enqueue_pkts(struct vhost_dev *dev, uint16_t queue_id,
struct rte_mbuf **pkts, uint32_t count);
uint16_t vs_dequeue_pkts(struct vhost_dev *dev, uint16_t queue_id,
struct rte_mempool *mbuf_pool,
struct rte_mbuf **pkts, uint16_t count);
#endif /* _MAIN_H_ */
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