mirror of https://github.com/F-Stack/f-stack.git
63 lines
2.5 KiB
C
63 lines
2.5 KiB
C
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/*-
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* BSD LICENSE
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*
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* Copyright(c) 2010-2016 Intel Corporation. All rights reserved.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _VIRTIO_USER_DEV_H
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#define _VIRTIO_USER_DEV_H
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#include <limits.h>
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#include "../virtio_pci.h"
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#include "../virtio_ring.h"
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struct virtio_user_dev {
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int vhostfd;
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int callfds[VIRTIO_MAX_VIRTQUEUES * 2 + 1];
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int kickfds[VIRTIO_MAX_VIRTQUEUES * 2 + 1];
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int mac_specified;
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uint32_t max_queue_pairs;
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uint32_t queue_pairs;
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uint32_t queue_size;
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uint64_t features;
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uint8_t status;
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uint8_t mac_addr[ETHER_ADDR_LEN];
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char path[PATH_MAX];
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struct vring vrings[VIRTIO_MAX_VIRTQUEUES * 2 + 1];
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};
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int virtio_user_start_device(struct virtio_user_dev *dev);
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int virtio_user_stop_device(struct virtio_user_dev *dev);
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int virtio_user_dev_init(struct virtio_user_dev *dev, char *path, int queues,
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int cq, int queue_size, const char *mac);
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void virtio_user_dev_uninit(struct virtio_user_dev *dev);
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void virtio_user_handle_cq(struct virtio_user_dev *dev, uint16_t queue_idx);
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#endif
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