smp.h revision 4c06356b0f0fffb4fc1b6eccc8e5d8e2254a84d6
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (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 2009 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#ifndef _SYS_SCSI_TARGETS_SMP_H
#define _SYS_SCSI_TARGETS_SMP_H
#include <sys/types.h>
#include <sys/scsi/scsi.h>
#ifdef __cplusplus
extern "C" {
#endif
#if defined(_KERNEL)
/*
* smp_open_flag: field indicating open smp instance.
* 0 = closed, 1 = shared open, 2 = exclusive open.
*/
#define SMP_CLOSED 0
#define SMP_SOPENED 1
#define SMP_EXOPENED 2
typedef struct smp_state {
struct smp_device *smp_dev; /* pointer to smp_device */
kmutex_t smp_mutex; /* mutex */
uint32_t smp_open_flag; /* open flag */
kcondvar_t smp_cv; /* condition variable */
uint32_t smp_busy; /* busy */
} smp_state_t;
#define SMP_ESTIMATED_NUM_DEVS 4 /* for soft-state allocation */
#define SMP_DEFAULT_RETRY_TIMES 5
#define SMP_FLAG_REQBUF 0x1
#define SMP_FLAG_RSPBUF 0x2
#define SMP_FLAG_XFER 0x4
#endif /* defined(_KERNEL) */
#ifdef __cplusplus
}
#endif
#endif /* _SYS_SCSI_TARGETS_SMP_H */