diff options
Diffstat (limited to 'usr/src/uts/common/sys/vnd.h')
| -rw-r--r-- | usr/src/uts/common/sys/vnd.h | 141 |
1 files changed, 141 insertions, 0 deletions
diff --git a/usr/src/uts/common/sys/vnd.h b/usr/src/uts/common/sys/vnd.h new file mode 100644 index 0000000000..bc7c9c3122 --- /dev/null +++ b/usr/src/uts/common/sys/vnd.h @@ -0,0 +1,141 @@ +/* + * 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 (c) 2014 Joyent, Inc. All rights reserved. + */ + +#ifndef _SYS_VND_H +#define _SYS_VND_H + +#include <sys/types.h> +#include <sys/vnd_errno.h> +#include <sys/frameio.h> + +#ifdef __cplusplus +extern "C" { +#endif + +/* + * We distinguish between normal ioctls and private ioctls we issues to out + * streams version. Streams ioctls have the upper bit set in the lowest byte. + * Note that there are no STREAMs ioctls for userland and all definitions + * related to them are not present in this file. + */ +#define VND_IOC (('v' << 24) | ('n' << 16) | ('d' << 8)) + +/* + * Attach the current minor instance to a given dlpi datalink identified by a + * vnd_ioc_name_t argument. This fails if it's already been attached. Note that + * unlike the other ioctls, this is passed directly as opposed to every other + * function which is passed as a pointer to the value. + */ +#define VND_IOC_ATTACH (VND_IOC | 0x1) + +#define VND_NAMELEN 32 + +typedef struct vnd_ioc_attach { + char via_name[VND_NAMELEN]; + zoneid_t via_zoneid; + uint32_t via_errno; +} vnd_ioc_attach_t; + +/* + * Link the current minor instance into the /devices name space. + * + * This ioctl adds entries into /devices with a name of the form z%d:%s vil_zid, + * vil_name. The device will be namespaced to the zone. The global zone will be + * able to see all minor nodes. In the zone, only the /dev entries will exist. + * At this time, a given device can only have one link at a time. Note that a + * user cannot specify the zone to pass in, rather it is the zone that the + * device was attached in. + */ +#define VND_IOC_LINK (VND_IOC | 0x2) + +typedef struct vnd_ioc_link { + char vil_name[VND_NAMELEN]; + uint32_t vil_errno; +} vnd_ioc_link_t; + +/* + * Unlink the opened minor instance from the /devices name space. A zone may use + * this to unlink an extent entry in /dev; however, they will not be able to + * link it in again. + */ +#define VND_IOC_UNLINK (VND_IOC | 0x3) +typedef struct vnd_ioc_unlink { + uint32_t viu_errno; +} vnd_ioc_unlink_t; + +/* + * Controls to get and set the current buffer recieve buffer size. + */ +typedef struct vnd_ioc_buf { + uint64_t vib_size; + uint32_t vib_filler; + uint32_t vib_errno; +} vnd_ioc_buf_t; + +#define VND_IOC_GETRXBUF (VND_IOC | 0x04) +#define VND_IOC_SETRXBUF (VND_IOC | 0x05) +#define VND_IOC_GETMAXBUF (VND_IOC | 0x06) +#define VND_IOC_GETTXBUF (VND_IOC | 0x07) +#define VND_IOC_SETTXBUF (VND_IOC | 0x08) +#define VND_IOC_GETMINTU (VND_IOC | 0x09) +#define VND_IOC_GETMAXTU (VND_IOC | 0x0a) + +/* + * Information and listing ioctls + * + * This gets information about all of the active vnd instances. vl_actents is + * always updated to the number around and vl_nents is the number of + * vnd_ioc_info_t elements are allocated in vl_ents. + */ +typedef struct vnd_ioc_info { + uint32_t vii_version; + zoneid_t vii_zone; + char vii_name[VND_NAMELEN]; + char vii_datalink[VND_NAMELEN]; +} vnd_ioc_info_t; + +typedef struct vnd_ioc_list { + uint_t vl_nents; + uint_t vl_actents; + vnd_ioc_info_t *vl_ents; +} vnd_ioc_list_t; + +#ifdef _KERNEL + +typedef struct vnd_ioc_list32 { + uint_t vl_nents; + uint_t vl_actents; + caddr32_t vl_ents; +} vnd_ioc_list32_t; + +#endif /* _KERNEL */ + +#define VND_IOC_LIST (VND_IOC | 0x20) + +/* + * Framed I/O ioctls + * + * Users should use the standard frameio_t as opposed to a vnd specific type. + * This is a consolidation private ioctl pending futher stability in the form of + * specific system work. + */ +#define VND_IOC_FRAMEIO_READ (VND_IOC | 0x30) +#define VND_IOC_FRAMEIO_WRITE (VND_IOC | 0x31) + +#ifdef __cplusplus +} +#endif + +#endif /* _SYS_VND_H */ |