diff options
Diffstat (limited to 'src/spdk/lib/virtio/vhost_user.h')
| -rw-r--r-- | src/spdk/lib/virtio/vhost_user.h | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/src/spdk/lib/virtio/vhost_user.h b/src/spdk/lib/virtio/vhost_user.h new file mode 100644 index 000000000..0caf51ebc --- /dev/null +++ b/src/spdk/lib/virtio/vhost_user.h @@ -0,0 +1,69 @@ +/*- + * BSD LICENSE + * + * Copyright(c) 2010-2016 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 _VHOST_H +#define _VHOST_H + +#include "spdk/stdinc.h" + +#include "spdk_internal/log.h" +#include "spdk_internal/virtio.h" +#include "spdk_internal/vhost_user.h" + +struct virtio_user_backend_ops; + +struct virtio_user_dev { + int vhostfd; + + int callfds[SPDK_VIRTIO_MAX_VIRTQUEUES]; + int kickfds[SPDK_VIRTIO_MAX_VIRTQUEUES]; + uint32_t queue_size; + + uint8_t status; + char path[PATH_MAX]; + uint64_t protocol_features; + struct vring vrings[SPDK_VIRTIO_MAX_VIRTQUEUES]; + struct virtio_user_backend_ops *ops; + struct spdk_mem_map *mem_map; +}; + +struct virtio_user_backend_ops { + int (*setup)(struct virtio_user_dev *dev); + int (*send_request)(struct virtio_user_dev *dev, + enum vhost_user_request req, + void *arg); +}; + +extern struct virtio_user_backend_ops ops_user; + +#endif |