/* SPDX-License-Identifier: GPL-2.0-or-later
 * Copyright Red Hat
 * Author: Laurent Vivier <lvivier@redhat.com>
 *
 * vhost-user common UDP and TCP functions
 */

#ifndef VU_COMMON_H
#define VU_COMMON_H

static inline void *vu_eth(const struct vu_dev *vdev, void *base)
{
	return ((char *)base + vdev->hdrlen);
}

static inline void *vu_ip(const struct vu_dev *vdev, void *base)
{
	return (struct ethhdr *)vu_eth(vdev, base) + 1;
}

static inline void *vu_payloadv4(const struct vu_dev *vdev, void *base)
{
	return (struct iphdr *)vu_ip(vdev, base) + 1;
}

static inline void *vu_payloadv6(const struct vu_dev *vdev, void *base)
{
	return (struct ipv6hdr *)vu_ip(vdev, base) + 1;
}

void vu_send_frame(const struct vu_dev *vdev, struct vu_virtq *vq,
		   struct vu_virtq_element *elem, const struct iovec *iov_vu,
		   int iov_used);
#endif /* VU_COMMON_H */