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wdvar.h revision 1.52 
      1 /*	$NetBSD: wdvar.h,v 1.52 2025/04/13 14:00:59 jakllsch Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1998, 2001 Manuel Bouyer.
      5  *
      6  * Redistribution and use in source and binary forms, with or without
      7  * modification, are permitted provided that the following conditions
      8  * are met:
      9  * 1. Redistributions of source code must retain the above copyright
     10  *    notice, this list of conditions and the following disclaimer.
     11  * 2. Redistributions in binary form must reproduce the above copyright
     12  *    notice, this list of conditions and the following disclaimer in the
     13  *    documentation and/or other materials provided with the distribution.
     14  *
     15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     16  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     17  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     18  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     19  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     20  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     21  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     22  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     24  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     25  */
     26 
     27 #ifndef _DEV_ATA_WDVAR_H_
     28 #define	_DEV_ATA_WDVAR_H_
     29 
     30 #ifdef _KERNEL_OPT
     31 #include "opt_wd.h"
     32 #endif
     33 
     34 #include <sys/types.h>
     35 
     36 #include <sys/callout.h>
     37 #include <sys/condvar.h>
     38 #include <sys/disk.h>
     39 #include <sys/mutex.h>
     40 #include <sys/sysctl.h>
     41 #include <sys/queue.h>
     42 
     43 #include <dev/ata/atareg.h>
     44 #include <dev/ata/atavar.h>
     45 #include <dev/dkvar.h>
     46 
     47 struct sysctllog;
     48 
     49 struct wd_softc {
     50 	/* General disk infos */
     51 	struct dk_softc sc_dksc;
     52 	kmutex_t sc_lock;
     53 	int sc_quirks;			/* any quirks drive might have */
     54 
     55 	/* IDE disk soft states */
     56 	struct ata_drive_datas *drvp; /* Our controller's infos */
     57 	const struct ata_bustype *atabus;
     58 	struct ataparams sc_params;/* drive characteristics found */
     59 	int sc_flags;
     60 /*
     61  * XXX Nothing resets this yet, but disk change sensing will when ATA-4 is
     62  * more fully implemented.
     63  */
     64 #define WDF_LOADED	0x010 /* parameters loaded */
     65 #define WDF_WAIT	0x020 /* waiting for resources */
     66 #define WDF_LBA		0x040 /* using LBA mode */
     67 #define WDF_LBA48	0x100 /* using 48-bit LBA mode */
     68 #define WDF_DIRTY	0x200 /* disk cache dirty */
     69 #define WDF_OPEN	0x400 /* device is open */
     70 	uint64_t sc_capacity; /* full capacity of the device */
     71 	uint64_t sc_capacity512; /* ... in DEV_BSIZE blocks */
     72 	uint32_t sc_capacity28; /* capacity accessible with LBA28 commands */
     73 	uint32_t sc_blksize; /* logical block size, in bytes */
     74 
     75 #ifdef WD_SOFTBADSECT
     76 	SLIST_HEAD(, disk_badsectors)	sc_bslist;
     77 	u_int sc_bscount;
     78 	kcondvar_t sc_bslist_cv;
     79 	u_int sc_bslist_inuse;
     80 #endif
     81 
     82 	/* Retry/requeue failed transfers */
     83 	SLIST_HEAD(, ata_xfer) sc_retry_list;
     84 	struct callout sc_retry_callout;	/* retry callout handle */
     85 	struct callout sc_restart_diskqueue;	/* restart queue processing */
     86 
     87 	SLIST_HEAD(, ata_xfer) sc_requeue_list;
     88 	struct callout sc_requeue_callout;	/* requeue callout handle */
     89 
     90 	struct ata_xfer dump_xfer;
     91 
     92 	/* Sysctl nodes specific for the disk */
     93 	struct sysctllog *nodelog;
     94 	bool drv_ncq;
     95 #define WD_USE_NCQ(wd)	\
     96 	((wd)->drv_ncq && ((wd)->drvp->drive_flags & ATA_DRIVE_NCQ))
     97 	bool drv_ncq_prio;
     98 #define WD_USE_NCQ_PRIO(wd) \
     99 	((wd)->drv_ncq_prio && ((wd)->drvp->drive_flags & ATA_DRIVE_NCQ_PRIO))
    100 #ifdef WD_CHAOS_MONKEY
    101 	int drv_chaos_freq;		/* frequency of simulated bio errors */
    102 	int drv_chaos_cnt;		/* count of processed bio read xfers */
    103 #endif
    104 	unsigned inflight;
    105 	char *sc_typename;
    106 };
    107 
    108 #endif /* _DEV_ATA_WDVAR_H_ */
    109