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/*-
* BSD LICENSE
*
* Copyright(c) 2010-2015 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 <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
/* State of virtio device. */
#define DEVICE_MAC_LEARNING 0
#define DEVICE_RX 1
#define DEVICE_SAFE_REMOVE 2
#define MAX_QUEUES 512
/* Max burst size for RX/TX */
#define MAX_PKT_BURST 32
/* Max number of devices. Limited by the application. */
#define MAX_DEVICES 64
enum {VIRTIO_RXQ, VIRTIO_TXQ, VIRTIO_QNUM};
/* Per-device statistics struct */
struct device_statistics {
uint64_t tx_total;
rte_atomic64_t rx_total_atomic;
uint64_t rx_total;
uint64_t tx;
rte_atomic64_t rx_atomic;
/**< Bad inner IP csum for tunneling pkt */
rte_atomic64_t rx_bad_ip_csum;
/**< Bad inner L4 csum for tunneling pkt */
rte_atomic64_t rx_bad_l4_csum;
} __rte_cache_aligned;
/**
* Device linked list structure for data path.
*/
struct vhost_dev {
int vid;
/**< Number of memory regions for gpa to hpa translation. */
uint32_t nregions_hpa;
/**< Memory region information for gpa to hpa translation. */
struct virtio_memory_regions_hpa *regions_hpa;
/**< Device MAC address (Obtained on first TX packet). */
struct ether_addr mac_address;
/**< RX queue number. */
uint16_t rx_q;
/**< 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;
} __rte_cache_aligned;
/**
* Structure containing data core specific information.
*/
struct lcore_ll_info {
/**< Pointer to head in free linked list. */
struct virtio_net_data_ll *ll_root_free;
/**< Pointer to head of used linked list. */
struct virtio_net_data_ll *ll_root_used;
/**< Number of devices on lcore. */
uint32_t device_num;
/**< Flag to synchronize device removal. */
volatile uint8_t dev_removal_flag;
};
struct lcore_info {
/**< Pointer to data core specific lcore_ll_info struct */
struct lcore_ll_info *lcore_ll;
};
struct virtio_net_data_ll {
/**< Pointer to device created by configuration core. */
struct vhost_dev *vdev;
/**< Pointer to next device in linked list. */
struct virtio_net_data_ll *next;
};
uint32_t
virtio_dev_rx(int vid, struct rte_mbuf **pkts, uint32_t count);
#endif /* _MAIN_H_ */
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