sd_io.h revision fcf3ce441efd61da9bb2884968af01cb7c1452cc
/*
* 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 2008 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#ifndef _SD_IO_H
#define _SD_IO_H
#ifdef __cplusplus
extern "C" {
#endif
#define SGIO_MAX 254
#define _SD_IO_NONE 0
#define _SD_IO_INITIATE 1
#define _SD_IO_DONE 2
#define _SD_IO_FAILED 3
#define _SD_IO_DISCARDED 4
#define _SD_WRITER_NONE 0
#define _SD_WRITER_CREATE 1
#define _SD_WRITER_RUNNING 2
#ifdef _KERNEL
extern kcondvar_t _sd_flush_cv;
/* secret flush toggle flag for testing */
extern int _sdbc_flush_flag; /* 0 ==> noflushing, 1 ==> flush */
extern int _sdbc_flush_configure(void);
extern void _sdbc_flush_deconfigure(void);
extern void _sd_async_flclist(_sd_cctl_t *cclist, dev_t rdev);
extern void _sd_enqueue_io_pending(int cd, _sd_cctl_t *cclist);
extern void _sd_async_flcent(_sd_cctl_t *cc_ent, dev_t rdev);
extern int _sd_process_failure(_sd_cctl_t *cc_ent);
extern int cd_writer(int cd);
extern void _sd_ccent_rd(_sd_cctl_t *cc_ent, uint_t wanted, buf_t *bp);
extern int _sdbc_wait_pending(void);
#endif /* _KERNEL */
#ifdef __cplusplus
}
#endif
#endif /* _SD_IO_H */