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/*
* This file and its contents are supplied under the terms of the
* Common Development and Distribution License ("CDDL"), version 1.0.
* You may only use this file in accordance with the terms of version
* 1.0 of the CDDL.
*
* A full copy of the text of the CDDL should have accompanied this
* source. A copy of the CDDL is also available via the Internet at
* http://www.illumos.org/license/CDDL.
*/
/*
* Copyright 2022 Oxide Computer Company
*/
#ifndef _SYS_VIO9P_H
#define _SYS_VIO9P_H
/*
* VIRTIO 9P DRIVER
*/
#ifdef __cplusplus
extern "C" {
#endif
/*
* If the hypervisor supports mount tags through the VIRTIO_9P_F_MOUNT_TAG
* feature, they will have at most this many bytes:
*/
#define VIRTIO_9P_TAGLEN 32
/*
* ioctl(2) support for 9P channel devices:
*/
#define VIO9P_IOC_BASE (('9' << 16) | ('P' << 8))
#define VIO9P_IOC_MOUNT_TAG (VIO9P_IOC_BASE | 0x01)
/*
* Buffer size for the VIO9P_IOC_MOUNT_TAG ioctl, which includes one byte
* beyond the maximum tag length for NUL termination:
*/
#define VIO9P_MOUNT_TAG_SIZE (VIRTIO_9P_TAGLEN + 1)
#ifdef __cplusplus
}
#endif
#endif /* _SYS_VIO9P_H */
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