The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/sys/scsiio.h

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    1 /*     $NetBSD: scsiio.h,v 1.11 2002/07/10 21:56:42 wiz Exp $        */
    2 
    3 #ifndef _SYS_SCSIIO_H_
    4 #define _SYS_SCSIIO_H_
    5 
    6 
    7 #include <sys/types.h>
    8 #include <sys/ioctl.h>
    9 
   10 #define SENSEBUFLEN 48
   11 
   12 typedef struct  scsireq {
   13         u_long  flags;          /* info about the request status and type */
   14         u_long  timeout;
   15         u_char  cmd[16];        /* 12 is actually the max */
   16         u_char  cmdlen;
   17         caddr_t databuf;        /* address in user space of buffer */
   18         u_long  datalen;        /* size of user buffer (request) */
   19         u_long  datalen_used;   /* size of user buffer (used)*/
   20         u_char  sense[SENSEBUFLEN]; /* returned sense will be in here */
   21         u_char  senselen;       /* sensedata request size (MAX of SENSEBUFLEN)*/
   22         u_char  senselen_used;  /* return value only */
   23         u_char  status;         /* what the scsi status was from the adapter */
   24         u_char  retsts;         /* the return status for the command */
   25         int     error;          /* error bits */
   26 } scsireq_t;
   27 
   28 /* bit definitions for flags */
   29 #define SCCMD_READ              0x00000001
   30 #define SCCMD_WRITE             0x00000002
   31 #define SCCMD_IOV               0x00000004
   32 #define SCCMD_ESCAPE            0x00000010
   33 #define SCCMD_TARGET            0x00000020
   34 
   35 
   36 /* definitions for the return status (retsts) */
   37 #define SCCMD_OK        0x00
   38 #define SCCMD_TIMEOUT   0x01
   39 #define SCCMD_BUSY      0x02
   40 #define SCCMD_SENSE     0x03
   41 #define SCCMD_UNKNOWN   0x04
   42 
   43 #define SCIOCCOMMAND    _IOWR('Q', 1, scsireq_t)
   44 
   45 #define SC_DB_CMDS      0x00000001      /* show all scsi cmds and errors */
   46 #define SC_DB_FLOW      0x00000002      /* show routines entered        */
   47 #define SC_DB_FLOW2     0x00000004      /* show path INSIDE routines    */
   48 #define SC_DB_DMA       0x00000008      /* show DMA segments etc        */
   49 #define SCIOCDEBUG      _IOW('Q', 2, int)       /* from 0 to 15 */
   50 
   51 struct  oscsi_addr {
   52         int     scbus;          /* -1 if wildcard */
   53         int     target;         /* -1 if wildcard */
   54         int     lun;            /* -1 if wildcard */
   55 };
   56 
   57 struct  scsi_addr {
   58         int type;       /* bus type */
   59 #define TYPE_SCSI 0
   60 #define TYPE_ATAPI 1
   61         union {
   62                 struct oscsi_addr scsi;
   63                 struct _atapi {
   64                         int atbus;  /* -1 if wildcard */
   65                         int drive;  /* -1 if wildcard */
   66                 } atapi;
   67         } addr;
   68 };
   69 
   70 /*
   71  * SCSI device ioctls
   72  */
   73 
   74 #define SCIOCIDENTIFY   _IOR('Q', 4, struct scsi_addr) /* where are you? */
   75 #define  OSCIOCIDENTIFY _IOR('Q', 4, struct oscsi_addr)
   76 #define SCIOCDECONFIG   _IO('Q', 5)     /* please disappear */
   77 #define SCIOCRECONFIG   _IO('Q', 6)     /* please check again */
   78 #define SCIOCRESET      _IO('Q', 7)     /* reset the device */
   79 
   80 /*
   81  * SCSI bus ioctls
   82  */
   83 
   84 /* Scan bus for new devices. */
   85 struct scbusioscan_args {
   86         int     sa_target;      /* target to scan; -1 for wildcard */
   87         int     sa_lun;         /* lun to scan; -1 for wildcard */
   88 };
   89 #define SCBUSIOSCAN     _IOW('U', 0, struct scbusioscan_args)
   90 
   91 #define SCBUSIORESET    _IO('U', 1)     /* reset SCSI bus */
   92 
   93 struct scbusiodetach_args {
   94         int     sa_target;      /* target to scan; -1 for wildcard */
   95         int     sa_lun;         /* lun to scan; -1 for wildcard */
   96 };
   97 #define SCBUSIODETACH   _IOW('U', 2, struct scbusiodetach_args)
   98 
   99 /* enable/disable device properties */
  100 struct scbusaccel_args {
  101         int     sa_target;      /* target to set property on */
  102         int     sa_lun;         /* lun to set property on */
  103         int     sa_flags;       /* flags to set or clear */
  104 };
  105 #define SC_ACCEL_SYNC   0x01    /* enable sync mode */
  106 #define SC_ACCEL_WIDE   0x02    /* enable wide transfers */
  107 #define SC_ACCEL_TAGS   0x04    /* enable tagged queuing */
  108 #define SCBUSACCEL      _IOW('U', 2, struct scbusaccel_args)
  109 
  110 #define SCBUSIOLLSCAN   _IO('U', 3)     /* perform low-level scan */
  111 
  112 #endif /* _SYS_SCSIIO_H_ */

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