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      1 /*
      2  * CDDL HEADER START
      3  *
      4  * The contents of this file are subject to the terms of the
      5  * Common Development and Distribution License (the "License").
      6  * You may not use this file except in compliance with the License.
      7  *
      8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
      9  * or http://www.opensolaris.org/os/licensing.
     10  * See the License for the specific language governing permissions
     11  * and limitations under the License.
     12  *
     13  * When distributing Covered Code, include this CDDL HEADER in each
     14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
     15  * If applicable, add the following below this CDDL HEADER, with the
     16  * fields enclosed by brackets "[]" replaced with your own identifying
     17  * information: Portions Copyright [yyyy] [name of copyright owner]
     18  *
     19  * CDDL HEADER END
     20  */
     21 /*
     22  * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
     23  * Use is subject to license terms.
     24  */
     25 
     26 #ifndef	_SYS_SCSI_SCSI_WATCH_H
     27 #define	_SYS_SCSI_SCSI_WATCH_H
     28 
     29 #ifdef	__cplusplus
     30 extern "C" {
     31 #endif
     32 
     33 struct scsi_watch_result {
     34 	struct scsi_status		*statusp;
     35 	struct scsi_extended_sense	*sensep;
     36 	uchar_t				actual_sense_length;
     37 	uchar_t				mmc_data[8];
     38 	struct scsi_pkt			*pkt;
     39 };
     40 
     41 /*
     42  * 120 seconds is a *very* reasonable amount of time for most slow devices
     43  */
     44 #define	SCSI_WATCH_IO_TIME	120
     45 
     46 /*
     47  * values to pass in "flags" arg for scsi_watch_request_terminate()
     48  */
     49 #define	SCSI_WATCH_TERMINATE_WAIT	0x0
     50 #define	SCSI_WATCH_TERMINATE_NOWAIT	0x1
     51 #define	SCSI_WATCH_TERMINATE_ALL_WAIT	0x2
     52 
     53 #define	SCSI_WATCH_TERMINATE_SUCCESS	0x0
     54 #define	SCSI_WATCH_TERMINATE_FAIL	0x1
     55 
     56 void	scsi_watch_init();
     57 void	scsi_watch_fini();
     58 opaque_t scsi_watch_request_submit(struct scsi_device *devp,
     59 	    int interval, int sense_length,
     60 	    int (*callback)(), caddr_t cb_arg);
     61 opaque_t scsi_mmc_watch_request_submit(struct scsi_device *devp,
     62 	    int interval, int sense_length,
     63 	    int (*callback)(), caddr_t cb_arg);
     64 int	scsi_watch_request_terminate(opaque_t token, int flags);
     65 int	scsi_watch_get_ref_count(opaque_t token);
     66 void	scsi_watch_resume(opaque_t token);
     67 void	scsi_watch_suspend(opaque_t token);
     68 
     69 #ifdef	__cplusplus
     70 }
     71 #endif
     72 
     73 #endif	/* _SYS_SCSI_SCSI_WATCH_H */
     74