1 /* $NetBSD: wdvar.h,v 1.46 2017/11/03 13:01:26 mlelstv 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 <dev/dkvar.h> 35 #include <sys/sysctl.h> 36 37 struct wd_softc { 38 /* General disk infos */ 39 struct dk_softc sc_dksc; 40 kmutex_t sc_lock; 41 int sc_quirks; /* any quirks drive might have */ 42 43 /* IDE disk soft states */ 44 struct ata_drive_datas *drvp; /* Our controller's infos */ 45 const struct ata_bustype *atabus; 46 struct ataparams sc_params;/* drive characteristics found */ 47 int sc_flags; 48 /* 49 * XXX Nothing resets this yet, but disk change sensing will when ATA-4 is 50 * more fully implemented. 51 */ 52 #define WDF_LOADED 0x010 /* parameters loaded */ 53 #define WDF_WAIT 0x020 /* waiting for resources */ 54 #define WDF_LBA 0x040 /* using LBA mode */ 55 #define WDF_LBA48 0x100 /* using 48-bit LBA mode */ 56 #define WDF_FLUSH_PEND 0x200 /* cache flush waits for free xfer */ 57 #define WDF_OPEN 0x400 /* device is open */ 58 uint64_t sc_capacity; /* full capacity of the device */ 59 uint64_t sc_capacity512; /* ... in DEV_BSIZE blocks */ 60 uint32_t sc_capacity28; /* capacity accessible with LBA28 commands */ 61 uint32_t sc_blksize; /* logical block size, in bytes */ 62 63 #ifdef WD_SOFTBADSECT 64 SLIST_HEAD(, disk_badsectors) sc_bslist; 65 u_int sc_bscount; 66 #endif 67 68 /* Sysctl nodes specific for the disk */ 69 struct sysctllog *nodelog; 70 int drv_max_tags; 71 #define WD_MAX_OPENINGS(wd) \ 72 (MAX(1, MIN((wd)->drvp->drv_openings, (wd)->drv_max_tags))) 73 bool drv_ncq; 74 #define WD_USE_NCQ(wd) \ 75 ((wd)->drv_ncq && ((wd)->drvp->drive_flags & ATA_DRIVE_NCQ)) 76 bool drv_ncq_prio; 77 #define WD_USE_NCQ_PRIO(wd) \ 78 ((wd)->drv_ncq_prio && ((wd)->drvp->drive_flags & ATA_DRIVE_NCQ_PRIO)) 79 #ifdef WD_CHAOS_MONKEY 80 int drv_chaos_freq; /* frequency of simulated bio errors */ 81 int drv_chaos_cnt; /* count of processed bio read xfers */ 82 #endif 83 }; 84 85 #endif /* _DEV_ATA_WDVAR_H_ */ 86