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Diffstat (limited to 'sys/scsi/scsiconf.h')
| -rw-r--r-- | sys/scsi/scsiconf.h | 618 |
1 files changed, 0 insertions, 618 deletions
diff --git a/sys/scsi/scsiconf.h b/sys/scsi/scsiconf.h deleted file mode 100644 index 6961077..0000000 --- a/sys/scsi/scsiconf.h +++ /dev/null @@ -1,618 +0,0 @@ -/* - * Written by Julian Elischer (julian@tfs.com) - * for TRW Financial Systems for use under the MACH(2.5) operating system. - * - * TRW Financial Systems, in accordance with their agreement with Carnegie - * Mellon University, makes this software available to CMU to distribute - * or use in any manner that they see fit as long as this message is kept with - * the software. For this reason TFS also grants any other persons or - * organisations permission to use or modify this software. - * - * TFS supplies this software to be publicly redistributed - * on the understanding that TFS is not responsible for the correct - * functioning of this software in any circumstances. - * - * Ported to run under 386BSD by Julian Elischer (julian@tfs.com) Sept 1992 - * - * $Id: scsiconf.h,v 1.60 1998/05/24 04:52:31 julian Exp $ - */ -#ifndef SCSI_SCSICONF_H -#define SCSI_SCSICONF_H 1 -typedef int boolean; -typedef int errval; - -#include <scsi/scsi_all.h> -#include <sys/callout.h> /* XXX For ioconf.c */ - -/* - * The following documentation tries to describe the relationship between the - * various structures defined in this file: - * - * each adapter type has a scsi_adapter struct. This describes the adapter and - * identifies routines that can be called to use the adapter. - * each device type has a scsi_device struct. This describes the device and - * identifies routines that can be called to use the device. - * each existing device position (scsibus + target + lun) - * can be described by a scsi_link struct. - * Only scsi positions that actually have devices, have a scsi_link - * structure assigned. so in effect each device has scsi_link struct. - * The scsi_link structure contains information identifying both the - * device driver and the adapter driver for that position on that scsi bus, - * and can be said to 'link' the two. - * each individual scsi bus has an array that points to all the scsi_link - * structs associated with that scsi bus. Slots with no device have - * a NULL pointer. - * each individual device also knows the address of its own scsi_link - * structure. - * - * ------------- - * - * The key to all this is the scsi_link structure which associates all the - * other structures with each other in the correct configuration. The - * scsi_link is the connecting information that allows each part of the - * scsi system to find the associated other parts. - */ - -struct buf; -struct scsi_xfer; -#ifdef PC98 -struct cfdata; -#endif - -/* Don't poke around inside of "scsi_data". Each low level - * driver has its own definition for it. - */ -struct scsi_data; -struct scsi_link; /* scsi_link refers to scsi_device and vice-versa */ - -struct proc; - -/* - * These entrypoints are called by the high-end drivers to get services from - * whatever low-end drivers they are attached to each adapter type has one of - * these statically allocated. - */ -struct scsi_adapter -{ -/* 04*/ int32_t (*scsi_cmd) __P((struct scsi_xfer *xs)); -/* 08*/ void (*scsi_minphys) __P((struct buf *bp)); -#ifdef PC98 -/* 12*/ int32_t (*open_target_lu) __P((struct scsi_link *sc_link, - struct cfdata *cf)); -#else -/* 12*/ int32_t (*open_target_lu) __P((void)); -#endif -/* 16*/ int32_t (*close_target_lu) __P((void)); -/* 20*/ u_int32_t (*adapter_info) __P((int unit)); /* see definitions below */ -/* 24*/ char *name; /* name of scsi bus controller */ -/* 32*/ u_long spare[2]; -}; - -/* - * return values for scsi_cmd() - */ -#define SUCCESSFULLY_QUEUED 0 -#define TRY_AGAIN_LATER 1 -#define COMPLETE 2 -#define HAD_ERROR 3 /* do not use this, use COMPLETE */ -#define ESCAPE_NOT_SUPPORTED 4 - -/* - * Return value from sense handler. IMHO, These ought to be merged - * in with the return codes above, all made negative to distinguish - * from valid errno values, and replace "try again later" with "do retry" - */ -#define SCSIRET_CONTINUE -1 /* Continue with standard sense processing */ -#define SCSIRET_DO_RETRY -2 /* Retry the command that got this sense */ - -/* - * Format of adapter_info() response data - * e.g. maximum number of entries queuable to a device by the adapter - */ - -/* - * These entry points are called by the low-end drivers to get services from - * whatever high-end drivers they are attached to. Each device type has one - * of these statically allocated. - * - * XXX dufault@hda.com: Each adapter driver has a scsi_device structure - * that I don't think should be there. - * This structure should be rearranged and cleaned up once the - * instance down in the adapter drivers is removed. - */ - -/* - * XXX this is so that everything that includes this bloated header doesn't - * also need to include <sys/conf.h>. - */ -typedef int yet_another_d_open_t __P((dev_t, int, int, struct proc *)); - -struct scsi_device -{ -/* 4*/ errval (*err_handler)(struct scsi_xfer *xs); -/* 8*/ void (*start)(u_int32_t unit, u_int32_t flags); -/* 12*/ int32_t (*async) __P((void)); -/* 16*/ int32_t (*done) __P((struct scsi_xfer *xs)); -/* 20*/ char *name; /* name of device type */ -/* 24*/ u_int32_t flags; /* device type dependent flags */ -/* 32*/ int32_t spare[2]; -/* 36*/ int32_t link_flags; /* set -> sc_link at attach time */ -/* 40*/ errval (*attach)(struct scsi_link *sc_link); -/* 44*/ char *desc; /* Description of device */ -/* 48*/ yet_another_d_open_t *open; -/* 52*/ int sizeof_scsi_data; -/* 56*/ int type; /* Type of device this supports */ -/* 60*/ int (*getunit)(dev_t dev); -/* 64*/ dev_t (*setunit)(dev_t dev, int unit); -/* 68*/ int (*dev_open)(dev_t dev, int flags, int fmt, struct proc *p, - struct scsi_link *sc_link); -/* 72*/ int (*dev_ioctl)(dev_t dev, u_long cmd, caddr_t arg, int mode, - struct proc *p, struct scsi_link *sc_link); -/* 76*/ int (*dev_close)(dev_t dev, int flag, int fmt, struct proc *p, - struct scsi_link *sc_link); -/* 80*/ void (*dev_strategy)(struct buf *bp, struct scsi_link *sc_link); - /* Not initialized after this */ -/* 84*/ struct extend_array *links; -/* 88*/ int free_unit; -/* 92*/ struct scsi_device *next; /* Next in list in the registry. */ -}; -/* - * Macros to access soem fields above. - */ -#define SCSI_LINK(DEV, UNIT) \ - ((struct scsi_link *)(extend_get((DEV)->links, (UNIT)))) - -#define SCSI_DATA(DEV, UNIT) \ - ((SCSI_LINK((DEV), (UNIT)) ? (SCSI_LINK((DEV), (UNIT))->sd) : NULL)) - -/* - * SCSI_DEVICE_ENTRIES: A macro to generate all the entry points from the - * name. - */ -#define SCSI_DEVICE_ENTRIES(NAME) \ -static errval NAME##attach(struct scsi_link *sc_link); \ -extern struct scsi_device NAME##_switch; /* XXX actually static */ \ -void NAME##init(void) { \ - scsi_device_register(&NAME##_switch); \ -} \ -static int NAME##open(dev_t dev, int flags, int fmt, struct proc *p) { \ - return scsi_open(dev, flags, fmt, p, &NAME##_switch); \ -} \ -static int NAME##ioctl(dev_t dev, u_long cmd, caddr_t addr, \ - int flag, struct proc *p) { \ - return scsi_ioctl(dev, cmd, addr, flag, p, &NAME##_switch); \ -} \ -static int NAME##close(dev_t dev, int flag, int fmt, struct proc *p) { \ - return scsi_close(dev, flag, fmt, p, &NAME##_switch); \ -} \ -static void NAME##minphys(struct buf *bp) { \ - scsi_minphys(bp, &NAME##_switch); \ -} \ -static void NAME##strategy(struct buf *bp) { \ - scsi_strategy(bp, &NAME##_switch); \ -} - -#ifdef KERNEL -/* Configuration tables for config. - */ -/* A unit, type, etc can be SCCONF_ANY to indicate it is a '?' - * in the config. - */ -#define SCCONF_UNSPEC 255 -#define SCCONF_ANY 254 - -struct isa_driver; -struct scsi_ctlr_config -{ - int scbus; - char *driver; - int unit; - int bus; -}; - -struct scsi_device_config -{ - char *name; /* SCSI device name (sd, st, etc) */ - int unit; /* desired device unit */ - int cunit; /* Controller unit */ - int target; /* SCSI ID (target) */ - int lun; /* SCSI lun */ - int flags; /* Flags from config */ -}; - -extern void (*scsi_tinit[])(void); -extern struct scsi_ctlr_config scsi_cinit[]; -extern struct scsi_device_config scsi_dinit[]; - -#endif - -/* - * Define various devices that we know mis-behave in some way, - * and note how they are bad, so we can correct for them - */ -struct st_mode { -/* 4*/ u_int32_t blksiz; -/* 6*/ u_int16_t quirks; /* same definitions as in XXX */ -/* 7*/ u_int8_t density; -/* 8*/ u_int8_t spare[1]; -}; - -typedef struct st_mode st_modes[4]; - -/* define behaviour codes (quirks) */ -/* common to all SCSI devices */ -#define SCSI_Q_NO_SYNC 0x8000 -#define SCSI_Q_NO_FAST 0x4000 -#define SCSI_Q_NO_WIDE 0x2000 - -/* tape specific ST_Q_* */ -#define ST_Q_NEEDS_PAGE_0 0x0001 -#define ST_Q_FORCE_FIXED_MODE 0x0002 -#define ST_Q_FORCE_VAR_MODE 0x0004 -#define ST_Q_SNS_HLP 0x0008 /* must do READ for good MODE SENSE */ -#define ST_Q_IGNORE_LOADS 0x0010 -#define ST_Q_BLKSIZ 0x0020 /* variable-block media_blksiz > 0 */ -#define ST_Q_CC_NOMSG 0x0040 /* no messages accepted in CC state */ -#define ST_Q_NO_1024 0x0080 /* never ever use 1024-byte fix blk */ - -#define ST_Q_NO_SYNC SCSI_Q_NO_SYNC -#define ST_Q_NO_FAST SCSI_Q_NO_FAST -#define ST_Q_NO_WIDE SCSI_Q_NO_WIDE - -/* disk specific SD_Q_* */ -#define SD_Q_NO_TAGS 0x0001 - -#define SD_Q_NO_SYNC SCSI_Q_NO_SYNC -#define SD_Q_NO_FAST SCSI_Q_NO_FAST -#define SD_Q_NO_WIDE SCSI_Q_NO_WIDE - -/* cd specific CD_Q_* */ -#define CD_Q_NO_TOUCH 0x0001 -#define CD_Q_BCD_TRACKS 0x0002 -#define CD_Q_NO_START 0x0004 - - -/* worm specific WORM_Q_* */ -#define WORM_Q_PLASMON 0x0001 -#define WORM_Q_PHILIPS 0x0002 -/* - * This structure describes the connection between an adapter driver and - * a device driver, and is used by each to call services provided by - * the other, and to allow generic scsi glue code to call these services - * as well. - */ -struct scsi_link -{ - u_int8_t target; /* targ of this dev */ - u_int8_t lun; /* lun of this dev */ - u_int8_t adapter_targ; /* what are we on the scsi bus*/ - u_int8_t adapter_unit; /* e.g. the 0 in aha0 */ - u_int8_t adapter_bus; /* e.g. the 0 in bus0 */ - u_int8_t scsibus; /* the Nth scsibus */ - u_int8_t dev_unit; /* e.g. the 0 in sd0 */ - u_int8_t opennings; /* available operations */ - u_int8_t active; /* operations in progress */ - u_int16_t flags; /* flags all devices have */ - u_int16_t quirks; /* device specific quirks */ - struct scsi_adapter *adapter; /* adapter entry points etc. */ - struct scsi_device *device; /* device entry points etc. */ - struct scsi_xfer *active_xs; /* operations under way */ - void *fordriver; /* for driver's private user */ - void *devmodes; /* dev specific mode tables */ - dev_t dev; /* Device major # (character) */ - struct scsi_data *sd; /* Device data structure */ - struct scsi_inquiry_data inqbuf; /* Inquiry data */ - void *adapter_softc; /* to call foo_scsi_cmd */ -}; - -/* XXX-HA: dufault@hda.com: SDEV_BOUNCE is set down in the adapter drivers - * in an sc_link structure to indicate that this host adapter requires - * ISA DMA bounce buffers. I think the link structure should - * be associated only with the type drive and not the adapter driver, - * and the bounce flag should be in something associated with the - * adapter driver. - * XXX-HA And I added the "supports residuals properly" flag that ALSO goes - * in an adapter structure. I figure I'll fix both at once. - * - * XXX SDEV_OPEN is used for two things: To prevent more than one - * open and to make unit attentions errors be logged on the console. - * These should be split up; I'm adding SDEV_IS_OPEN to enforce one - * open only. - * - * XXX SDEV_UK is used to mark the "uk" device. - */ - -#define SDEV_MEDIA_LOADED 0x0001 /* device figures are still valid */ -#define SDEV_WAITING 0x0002 /* a process is waiting for this */ -#define SDEV_OPEN 0x0004 /* at least 1 open session */ -#define SDEV_BOUNCE 0x0008 /* XXX-HA: unit needs DMA bounce buffer */ -#define SDEV_DBX 0x00F0 /* debugging flags (scsi_debug.h) */ -#define SDEV_ONCE_ONLY 0x0100 /* unit can only be opened once */ -#define SDEV_BOOTVERBOSE 0x0200 /* be noisy during boot */ -#define SDEV_RESIDS_WORK 0x0400 /* XXX-HA: Residuals work */ -#define SDEV_TARGET_OPS 0x0800 /* XXX-HA: Supports target ops */ -#define SDEV_IS_OPEN 0x1000 /* at least 1 open session */ -#define SDEV_UK 0x2000 /* this is the "uk" device */ -#define SDEV_XLOCK 0x4000 /* Device is locked */ -#define SDEV_WANT 0x8000 /* A process is waiting for lock */ - -/* - * One of these is allocated and filled in for each scsi bus. - * it holds pointers to allow the scsi bus to get to the driver - * That is running each LUN on the bus - * it also has a template entry which is the prototype struct - * supplied by the adapter driver, this is used to initialise - * the others, before they have the rest of the fields filled in - */ -struct scsibus_data { - u_char maxtarg; - u_char maxlun; - struct scsi_link *adapter_link; /* prototype supplied by adapter */ - struct scsi_link *(*sc_link)[][8]; /* dynamically allocated */ -}; - -/* - * Each scsi transaction is fully described by one of these structures - * It includes information about the source of the command and also the - * device and adapter for which the command is destined. - * (via the scsi_link structure) * - */ -struct scsi_xfer -{ -/*04*/ struct scsi_xfer *next; /* when free */ -/*08*/ u_int32_t flags; -/*12*/ struct scsi_link *sc_link; /* all about our device and adapter */ -/*13*/ u_int8_t retries; /* the number of times to retry */ -/*16*/ u_int8_t spare[3]; -/*20*/ int32_t timeout; /* in milliseconds */ -/*24*/ struct scsi_generic *cmd; /* The scsi command to execute */ -/*28*/ int32_t cmdlen; /* how long it is */ -/*32*/ u_char *data; /* dma address OR a uio address */ -/*36*/ int32_t datalen; /* data len (blank if uio) */ -/*40*/ int32_t resid; /* how much buffer was not touched */ -/*44*/ int32_t error; /* an error value */ -/*48*/ struct buf *bp; /* If we need to associate with a buf */ -/*80*/ struct scsi_sense_data sense; /* 32 bytes*/ - /* - * Believe it or not, Some targets fall on the ground with - * anything but a certain sense length. - */ -/*84*/ int32_t req_sense_length; /* Explicit request sense length */ -/*88*/ int32_t status; /* SCSI status */ -/*100*/ struct scsi_generic cmdstore; /* stash the command in here */ - /* - * Handle for scheduling - * command timeouts. - */ - struct callout_handle timeout_ch; -}; - -/* - * Per-request Flag values - */ -#define SCSI_NOSLEEP 0x01 /* Not a user... don't sleep */ -#define SCSI_NOMASK 0x02 /* dont allow interrupts.. booting */ -#define SCSI_NOSTART 0x04 /* left over from ancient history */ -#define SCSI_USER 0x08 /* Is a user cmd, call scsi_user_done */ -#define SCSI_ITSDONE 0x10 /* the transfer is as done as it gets */ -#define ITSDONE 0x10 /* the transfer is as done as it gets */ -#define SCSI_INUSE 0x20 /* The scsi_xfer block is in use */ -#define INUSE 0x20 /* The scsi_xfer block is in use */ -#define SCSI_SILENT 0x40 /* Don't report errors to console */ -#define SCSI_ERR_OK 0x80 /* An error on this operation is OK. */ -#define SCSI_RESET 0x100 /* Reset the device in question */ -#define SCSI_DATA_UIO 0x200 /* The data address refers to a UIO */ -#define SCSI_DATA_IN 0x400 /* expect data to come INTO memory */ -#define SCSI_DATA_OUT 0x800 /* expect data to flow OUT of memory */ -#define SCSI_TARGET 0x1000 /* This defines a TARGET mode op. */ -#define SCSI_ESCAPE 0x2000 /* Escape operation */ -#define SCSI_EOF 0x4000 /* The operation should return EOF */ -#define SCSI_RESID_VALID 0x8000 /* The resid field contains valid data */ - -/* - * Escape op codes. This provides an extensible setup for operations - * that are not scsi commands. They are intended for modal operations. - */ - -#define SCSI_OP_TARGET 0x0001 -#define SCSI_OP_RESET 0x0002 -#define SCSI_OP_BDINFO 0x0003 - -/* - * Error values an adapter driver may return - */ -#define XS_NOERROR 0x0 /* there is no error, (sense is invalid) */ -#define XS_SENSE 0x1 /* Check the returned sense for the error */ -#define XS_DRIVER_STUFFUP 0x2 /* Driver failed to perform operation */ -#define XS_TIMEOUT 0x03 /* The device timed out.. turned off? */ -#define XS_SWTIMEOUT 0x04 /* The Timeout reported was caught by SW */ -#define XS_BUSY 0x08 /* The device busy, try again later? */ -#define XS_LENGTH 0x09 /* Illegal length (over/under run) */ -#define XS_SELTIMEOUT 0x10 /* Device failed to respond to selection */ - -#ifdef KERNEL -void *extend_get(struct extend_array *ea, int index); -void scsi_attachdevs __P((struct scsibus_data *scbus)); -u_int32_t scsi_read_capacity __P(( struct scsi_link *sc_link, - u_int32_t *blk_size, u_int32_t flags)); -errval scsi_test_unit_ready __P(( struct scsi_link *sc_link, u_int32_t flags)); -errval scsi_reset_target __P((struct scsi_link *)); -errval scsi_target_mode __P((struct scsi_link *, int)); -errval scsi_inquire( struct scsi_link *sc_link, - struct scsi_inquiry_data *inqbuf, u_int32_t flags); -errval scsi_prevent( struct scsi_link *sc_link, u_int32_t type,u_int32_t flags); -struct scsibus_data *scsi_alloc_bus __P((void)); -errval scsi_probe_bus __P((int, int, int)); -errval scsi_probe_busses __P(( int, int, int)); -errval scsi_start_unit( struct scsi_link *sc_link, u_int32_t flags); -errval scsi_stop_unit(struct scsi_link *sc_link, u_int32_t eject, u_int32_t flags); -void scsi_done(struct scsi_xfer *xs); -void scsi_user_done(struct scsi_xfer *xs); -errval scsi_scsi_cmd __P(( struct scsi_link *, struct scsi_generic *, - u_int32_t, u_char *, - u_int32_t, u_int32_t, - u_int32_t, struct buf *, - u_int32_t)); -int scsi_do_ioctl __P((dev_t dev, u_long cmd, caddr_t addr, int mode, - struct proc *p, struct scsi_link *sc_link)); - -struct scsi_link *scsi_link_get __P((int bus, int targ, int lun)); -dev_t scsi_dev_lookup __P((int (*opener)(dev_t dev, int flags, int fmt, -struct proc *p))); - -int scsi_opened_ok __P((dev_t dev, int flag, int type, struct scsi_link *sc_link)); -errval scsi_set_bus __P((int, struct scsi_link *)); - -char *scsi_sense_desc __P((int, int)); -void scsi_sense_print __P((struct scsi_xfer *)); -void show_scsi_cmd __P((struct scsi_xfer *)); - -void scsi_uto3b __P((u_int32_t , u_char *)); -u_int32_t scsi_3btou __P((u_char *)); -int32_t scsi_3btoi __P((u_char *)); -void scsi_uto4b __P((u_int32_t, u_char *)); -u_int32_t scsi_4btou __P((u_char *)); -void scsi_uto2b __P((u_int32_t, u_char *)); -u_int32_t scsi_2btou __P((u_char *)); - -void sc_print_addr __P((struct scsi_link *)); -void sc_print_start __P((struct scsi_link *)); -void sc_print_init __P((void)); -void sc_print_finish __P((void)); - -#ifndef SCSIDEBUG -void scsi_print_info __P((struct scsi_link *)); -#endif - -void scsi_device_register __P((struct scsi_device *sd)); - -void scsi_configure_start __P((void)); -void scsi_configure_finish __P((void)); - -void ukinit __P((void)); - -#ifdef SCSI_2_DEF -errval scsi_change_def( struct scsi_link *sc_link, u_int32_t flags); -#endif -#endif /* KERNEL */ - -#define SCSI_EXTERNALLEN (sizeof(struct scsi_link)) - - -/* XXX This belongs in a tape file. - */ - -/********************************************************************** - from the scsi2 spec - Value Tracks Density(bpi) Code Type Reference Note - 0x1 9 800 NRZI R X3.22-1983 2 - 0x2 9 1600 PE R X3.39-1986 2 - 0x3 9 6250 GCR R X3.54-1986 2 - 0x5 4/9 8000 GCR C X3.136-1986 1 - 0x6 9 3200 PE R X3.157-1987 2 - 0x7 4 6400 IMFM C X3.116-1986 1 - 0x8 4 8000 GCR CS X3.158-1986 1 - 0x9 18 37871 GCR C X3B5/87-099 2 - 0xA 22 6667 MFM C X3B5/86-199 1 - 0xB 4 1600 PE C X3.56-1986 1 - 0xC 24 12690 GCR C HI-TC1 1,5 - 0xD 24 25380 GCR C HI-TC2 1,5 - 0xF 15 10000 GCR C QIC-120 1,5 - 0x10 18 10000 GCR C QIC-150 1,5 - 0x11 26 16000 GCR C QIC-320(525?) 1,5 - 0x12 30 51667 RLL C QIC-1350 1,5 - 0x13 1 61000 DDS CS X3B5/88-185A 4 - 0x14 1 43245 RLL CS X3.202-1991 4 - 0x15 1 45434 RLL CS ECMA TC17 4 - 0x16 48 10000 MFM C X3.193-1990 1 - 0x17 48 42500 MFM C X3B5/91-174 1 - - where Code means: - NRZI Non Return to Zero, change on ones - GCR Group Code Recording - PE Phase Encoded - IMFM Inverted Modified Frequency Modulation - MFM Modified Frequency Modulation - DDS Dat Data Storage - RLL Run Length Encoding - - where Type means: - R Real-to-Real - C Cartridge - CS cassette - - where Notes means: - 1 Serial Recorded - 2 Parallel Recorded - 3 Old format know as QIC-11 - 4 Helical Scan - 5 Not ANSI standard, rather industry standard. - -********************************************************************/ - -#define HALFINCH_800 0x01 -#define HALFINCH_1600 0x02 -#define HALFINCH_6250 0x03 -#define QIC_11 0x04 /* from Archive 150S Theory of Op. XXX */ -#define QIC_24 0x05 /* may be bad, works for CIPHER ST150S XXX */ -#define QIC_120 0x0f -#define QIC_150 0x10 -#define QIC_320 0x11 -#define QIC_525 0x11 -#define QIC_1320 0x12 -#define DDS 0x13 -#define DAT_1 0x13 -#define QIC_3080 0x29 - - -/* XXX (dufault@hda.com) This is used only by "su" and "sctarg". - * The minor number field conflicts with the disk slice code, - * and so it is tough to access the disks through the "su" device. - */ - -/* Device number fields: - * - * NON-FIXED SCSI devices: - * - * ?FC? ???? ???? ???? MMMMMMMM mmmmmmmm - * - * F: Fixed device (nexus in number): must be 0. - * C: Control device; only user mode ioctl is supported. - * ?: Don't know; those bits didn't use to exist, currently always 0. - * M: Major device number. - * m: Old style minor device number. - * - * FIXED SCSI devices: - * - * XXX Conflicts with the slice code. Maybe the slice code can be - * changed to respect the F bit? - * - * ?FC? ?BBB TTTT ?LLL MMMMMMMM mmmmmmmm - * - * F: Fixed device (nexus in number); must be 1. - * C: Control device; only user mode ioctl is supported. - * B: SCSI bus - * T: SCSI target ID - * L: Logical unit - * M: Major device number - * m: Old style minor device number. - */ - -#define SCSI_FIXED_MASK 0x40000000 -#define SCSI_FIXED(DEV) (((DEV) & SCSI_FIXED_MASK)) -#define SCSI_CONTROL_MASK 0x20000000 -#define SCSI_CONTROL(DEV) (((DEV) & SCSI_CONTROL_MASK)) - -#define SCSI_BUS(DEV) (((DEV) & 0x07000000) >> 24) -#define SCSI_ID(DEV) (((DEV) & 0x00F00000) >> 20) -#define SCSI_LUN(DEV) (((DEV) & 0x00070000) >> 16) - -#define SCSI_MKFIXED(B, T, L, P) ( \ - ((B) << 24) | \ - ((T) << 20) | \ - ((L) << 16) | \ - (P) | \ - SCSI_FIXED_MASK ) - -#endif /*SCSI_SCSICONF_H*/ -/* END OF FILE */ |
