def execute(self, cmd):
"""
execute a scsi command
:param cmd: a SCSICommand
"""
if self._detect_replugged and self._is_replugged():
try:
self.close()
finally:
self.open()
_dir = linux_sgio.DXFER_NONE
if len(cmd.datain) and len(cmd.dataout):
raise NotImplemented('Indirect IO is not supported')
elif len(cmd.datain):
_dir = linux_sgio.DXFER_FROM_DEV
elif len(cmd.dataout):
_dir = linux_sgio.DXFER_TO_DEV
status = linux_sgio.execute(self._fd, _dir, cmd.cdb, cmd.dataout,
cmd.datain, cmd.sense)
if status == scsi_enum_command.SCSI_STATUS.CHECK_CONDITION:
raise self.CheckCondition(cmd.sense)
if status == scsi_enum_command.SCSI_STATUS.SGIO_ERROR:
raise self.SCSISGIOError
def execute(self, cmd):
"""
execute a scsi command
:param cmd: a SCSICommand
"""
if self._detect_replugged and self._is_replugged():
try:
self.close()
finally:
self.open()
_dir = linux_sgio.DXFER_NONE
if len(cmd.datain) and len(cmd.dataout):
raise NotImplemented('Indirect IO is not supported')
elif len(cmd.datain):
_dir = linux_sgio.DXFER_FROM_DEV
elif len(cmd.dataout):
_dir = linux_sgio.DXFER_TO_DEV
status = linux_sgio.execute(self._fd,
_dir,
cmd.cdb,
cmd.dataout,
cmd.datain,
cmd.sense)
if status == scsi_enum_command.SCSI_STATUS.CHECK_CONDITION:
raise self.CheckCondition(cmd.sense)
if status == scsi_enum_command.SCSI_STATUS.SGIO_ERROR:
raise self.SCSISGIOError
def execute(self, cdb, dataout, datain, sense):
"""
execute a scsi command
:param cdb: a byte array representing a command descriptor block
:param dataout: a byte array to hold received data from the ioctl call
:param datain: a byte array to hold data passed to the ioctl call
:param sense: a byte array to hold sense data
"""
if self.isLibSCSI:
_dir = libiscsi.SCSI_XFER_NONE
_xferlen = 0
if len(datain):
_dir = libiscsi.SCSI_XFER_READ
_xferlen = len(datain)
if len(dataout):
_dir = libiscsi.SCSI_XFER_WRITE
_xferlen = len(dataout)
_task = libiscsi.scsi_create_task(cdb, _dir, _xferlen)
if len(datain):
libiscsi.scsi_task_add_data_in_buffer(_task, datain)
if len(dataout):
libiscsi.scsi_task_add_data_out_buffer(_task, dataout)
libiscsi.iscsi_scsi_command_sync(self._iscsi, self._iscsi_url.lun,
_task, None)
_status = libiscsi.scsi_task_get_status(_task, None)
if _status == libiscsi.SCSI_STATUS_CHECK_CONDITION:
raise self.CheckCondition(sense)
if _status == libiscsi.SCSI_STATUS_GOOD:
return
raise self.SCSISGIOError
elif self.isLinuxSGIO:
_dir = linux_sgio.DXFER_NONE
if len(datain) and len(dataout):
raise NotImplemented('Indirect IO is not supported')
elif len(datain):
_dir = linux_sgio.DXFER_FROM_DEV
elif len(dataout):
_dir = linux_sgio.DXFER_TO_DEV
status = linux_sgio.execute(self._fd, _dir, cdb, dataout, datain,
sense)
if status == scsi_enum_command.SCSI_STATUS.CHECK_CONDITION:
raise self.CheckCondition(sense)
if status == scsi_enum_command.SCSI_STATUS.SGIO_ERROR:
raise self.SCSISGIOError
def execute(self, cdb, dataout, datain, sense):
"""
execute a scsi command
:param cdb: a byte array representing a command descriptor block
:param dataout: a byte array to hold received data from the ioctl call
:param datain: a byte array to hold data passed to the ioctl call
:param sense: a byte array to hold sense data
"""
if self.isLibSCSI:
_dir = libiscsi.SCSI_XFER_NONE
_xferlen = 0
if len(datain):
_dir = libiscsi.SCSI_XFER_READ
_xferlen = len(datain)
if len(dataout):
_dir = libiscsi.SCSI_XFER_WRITE
_xferlen = len(dataout)
_task = libiscsi.scsi_create_task(cdb, _dir, _xferlen)
if len(datain):
libiscsi.scsi_task_add_data_in_buffer(_task, datain)
if len(dataout):
libiscsi.scsi_task_add_data_out_buffer(_task, dataout)
libiscsi.iscsi_scsi_command_sync(self._iscsi, self._iscsi_url.lun, _task, None)
_status = libiscsi.scsi_task_get_status(_task, None)
if _status == libiscsi.SCSI_STATUS_CHECK_CONDITION:
raise self.CheckCondition(sense)
if _status == libiscsi.SCSI_STATUS_GOOD:
return
raise self.SCSISGIOError
elif self.isLinuxSGIO:
_dir = linux_sgio.DXFER_NONE
if len(datain) and len(dataout):
raise NotImplemented('Indirect IO is not supported')
elif len(datain):
_dir = linux_sgio.DXFER_FROM_DEV
elif len(dataout):
_dir = linux_sgio.DXFER_TO_DEV
status = linux_sgio.execute(self._fd, _dir, cdb, dataout, datain, sense)
if status == scsi_enum_command.SCSI_STATUS.CHECK_CONDITION:
raise self.CheckCondition(sense)
if status == scsi_enum_command.SCSI_STATUS.SGIO_ERROR:
raise self.SCSISGIOError
