[SCSI] ibmvfc: Suppress ABTS if target gone
Adds support for a new VIOS feature that allows ibmvfc to optimize terminate_rport_io by telling the VIOS the target is no longer accessible on the fabric and that it should not send an ABTS out on the fabric to the device. Signed-off-by: NBrian King <brking@linux.vnet.ibm.com> Acked-by: NRobert Jennings <rcj@linux.vnet.ibm.com> Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>
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