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Minusing the idx with the base(dev->vq_index) for vhost-kernel, and then adding it back for vhost-user doesn't seem right. Here introduces a new method vhost_backend_get_vq_index() for getting the right vq index for following vhost messages calls. Suggested-by: Jason Wang <jasowang@redhat.com> Signed-off-by: Yuanhan Liu <yuanhan.liu@linux.intel.com> Reviewed-by: Jason Wang <jasowang@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Yuanhan Liu <yuanhan.liu@linux.intel.com> Tested-by: Marcel Apfelbaum <marcel@redhat.com>
43 lines
1.2 KiB
C
43 lines
1.2 KiB
C
/*
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* vhost-backend
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*
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* Copyright (c) 2013 Virtual Open Systems Sarl.
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*
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* This work is licensed under the terms of the GNU GPL, version 2 or later.
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* See the COPYING file in the top-level directory.
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*
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*/
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#ifndef VHOST_BACKEND_H_
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#define VHOST_BACKEND_H_
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typedef enum VhostBackendType {
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VHOST_BACKEND_TYPE_NONE = 0,
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VHOST_BACKEND_TYPE_KERNEL = 1,
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VHOST_BACKEND_TYPE_USER = 2,
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VHOST_BACKEND_TYPE_MAX = 3,
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} VhostBackendType;
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struct vhost_dev;
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typedef int (*vhost_call)(struct vhost_dev *dev, unsigned long int request,
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void *arg);
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typedef int (*vhost_backend_init)(struct vhost_dev *dev, void *opaque);
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typedef int (*vhost_backend_cleanup)(struct vhost_dev *dev);
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typedef int (*vhost_backend_get_vq_index)(struct vhost_dev *dev, int idx);
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typedef struct VhostOps {
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VhostBackendType backend_type;
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vhost_call vhost_call;
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vhost_backend_init vhost_backend_init;
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vhost_backend_cleanup vhost_backend_cleanup;
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vhost_backend_get_vq_index vhost_backend_get_vq_index;
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} VhostOps;
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extern const VhostOps user_ops;
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int vhost_set_backend_type(struct vhost_dev *dev,
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VhostBackendType backend_type);
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#endif /* VHOST_BACKEND_H_ */
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