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/*-
* BSD LICENSE
*
* Copyright (c) 2017 Red Hat, Inc.
*
* 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 _VHOST_IOTLB_H_
#define _VHOST_IOTLB_H_
#include <stdbool.h>
#include "vhost.h"
static __rte_always_inline void
vhost_user_iotlb_rd_lock(struct vhost_virtqueue *vq)
{
rte_rwlock_read_lock(&vq->iotlb_lock);
}
static __rte_always_inline void
vhost_user_iotlb_rd_unlock(struct vhost_virtqueue *vq)
{
rte_rwlock_read_unlock(&vq->iotlb_lock);
}
static __rte_always_inline void
vhost_user_iotlb_wr_lock(struct vhost_virtqueue *vq)
{
rte_rwlock_write_lock(&vq->iotlb_lock);
}
static __rte_always_inline void
vhost_user_iotlb_wr_unlock(struct vhost_virtqueue *vq)
{
rte_rwlock_write_unlock(&vq->iotlb_lock);
}
void vhost_user_iotlb_cache_insert(struct vhost_virtqueue *vq, uint64_t iova,
uint64_t uaddr, uint64_t size,
uint8_t perm);
void vhost_user_iotlb_cache_remove(struct vhost_virtqueue *vq,
uint64_t iova, uint64_t size);
uint64_t vhost_user_iotlb_cache_find(struct vhost_virtqueue *vq, uint64_t iova,
uint64_t *size, uint8_t perm);
bool vhost_user_iotlb_pending_miss(struct vhost_virtqueue *vq, uint64_t iova,
uint8_t perm);
void vhost_user_iotlb_pending_insert(struct vhost_virtqueue *vq, uint64_t iova,
uint8_t perm);
void vhost_user_iotlb_pending_remove(struct vhost_virtqueue *vq, uint64_t iova,
uint64_t size, uint8_t perm);
void vhost_user_iotlb_flush_all(struct vhost_virtqueue *vq);
int vhost_user_iotlb_init(struct virtio_net *dev, int vq_index);
#endif /* _VHOST_IOTLB_H_ */
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