scsi_abort(D3X)scsi_abort(D3X)NAMEscsi_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.
NOTESscsi_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
Page 1
