[SCSI] mpt2sas: Set the phy identifier of the end device to the phy number of the parent device it is linked to

The phy_identifier inside the routine _transport_set_identify()
is set to sas_device_page_zero->PhyNum. This returns the
phy number of the parent device this device is linked to.

Signed-off-by: Nagalakshmi Nandigama <nagalakshmi.nandigama@lsi.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>

drivers/scsi/mpt2sas/mpt2sas_transport.c

@@ -169,6 +169,9 @@ _transport_set_identify(struct MPT2SAS_ADAPTER *ioc, u16 handle,
 	/* sas_address */
 	identify->sas_address = le64_to_cpu(sas_device_pg0.SASAddress);
 
+	/* phy number of the parent device this device is linked to */
+	identify->phy_identifier = sas_device_pg0.PhyNum;
+
 	/* device_type */
 	switch (device_info & MPI2_SAS_DEVICE_INFO_MASK_DEVICE_TYPE) {
 	case MPI2_SAS_DEVICE_INFO_NO_DEVICE: