scsi_abort(D3X)

NAME
     scsi_abort - abort a command previously issued by scsi_command

SYNOPSIS
     #include <sys/types.h>
     #include <sys/scsi.h>

     void
     (*scsi_abort)(struct scsi_request *req);

DESCRIPTION
     The host adapter driver scsi_abort function aborts a command previously
     issued through the scsi_command interface.  If the command has been
     completed, or is not otherwise found in the driver or host adapter
     queues, scsi_abort does nothing.  The caller (a kernel level SCSI device
     driver) passes in a scsi_request structure corresponding to the command
     to be aborted.

     There is no kernel object called scsi_abort; rather, there is a pointer
     to each host adapter's scsi_abort function in the sci_abort field of the
     scsi_ctlr_info structure, which is attached to the vertex corresponding
     to the host adapter.

     The sr_lun_vhdl field of the request structure must contain the vertex
     handle of the device.  A kernel panic will result if this is not done.

     The scsi_abort function returns 0 if the abort was unable to be sent;
     otherwise it returns 1.

NOTES
     scsi_abort is stored as a function pointer in the information hanging off
     the vertex handle corresponding to the host adapter in the hwgraph.
     Given a lun_vhdl (vertex handle of the device) the scsi_abort function
     can be called as follows:

              scsi_lun_info_t *scsi_lun_info;
            ...
              scsi_lun_info = scsi_lun_info_get(lun_vhdl);
              SLI_ABORT(scsi_lun_info)(scsi_request);


SEE ALSO
     comments in /usr/include/sys/scsi.h, hwgraph.intro(D4X), scsi_alloc(D3X),
     scsi_free(D3X), scsi_info(D3X), scsi_command(D3X), scsi_ioctl(D3X), SCSI
     chapter of the IRIX Device Driver Programmer's Guide