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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright (c) 1990-1998 by Sun Microsystems, Inc.
* All rights reserved.
*/
#ifndef _SYS_SUNTPI_H
#define _SYS_SUNTPI_H
#pragma ident "%Z%%M% %I% %E% SMI"
#include <sys/types.h>
#include <sys/ksynch.h>
#include <sys/stream.h>
#ifdef __cplusplus
extern "C" {
#endif
#ifdef _KERNEL
/*
* Persistent information about the capabilities of transport providers.
* This structure is for the internal use of sockfs and timod. Because
* bitfield operations are not atomic, the lock must be used to avoid
* inconsistencies.
*/
typedef struct tpi_provinfo {
struct tpi_provinfo *tpi_next;
void *tpi_key;
size_t tpi_keylen;
kmutex_t tpi_lock;
uint32_t tpi_capability : 2,
tpi_myname : 2,
tpi_peername : 2,
_tpi_unused : 26;
} tpi_provinfo_t;
/*
* Possible values for the above 2-bitfields. A capability is either
* supported, unsupported or unknown.
*/
#define PI_DONTKNOW 0
#define PI_NO 1
#define PI_YES 2
extern void tpi_init(void);
extern tpi_provinfo_t *tpi_findprov(queue_t *);
#define PI_PROVLOCK(tp) mutex_enter(&(tp)->tpi_lock)
#define PI_PROVUNLOCK(tp) mutex_exit(&(tp)->tpi_lock)
extern mblk_t *tpi_ack_alloc(mblk_t *, size_t, uchar_t, t_scalar_t);
#endif /* _KERNEL */
#ifdef __cplusplus
}
#endif
#endif /* _SYS_SUNTPI_H */
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