IB/mlx4: Do not generate random node_guid for VFs

Exadata fast node detection and fail-over mechanism(s) relies on the fact
that node GUID in guest is the same as in dom0.

Orabug: 22145330

Signed-off-by: Yuval Shaia <[email protected]>
Reviewed-by: Santosh Shilimkar <[email protected]>
Reviewed-by: Qing Huang <[email protected]>

Orabug: 27510511

(cherry picked from commit d8af2ef)
cherry-pick-repo=linux-uek.git

Signed-off-by: Qing Huang <[email protected]>
Signed-off-by: Aron Silverton <[email protected]>
Signed-off-by: Somasundaram Krishnasamy <[email protected]>

Orabug: 31620959

UEK5 => UEK6

(cherry picked from commit 3a166d3)
cherry-pick-repo=UEK/production/linux-uek.git
unmodified-from-upstream: 3a166d3

Signed-off-by: Qing Huang <[email protected]>
Reviewed-by: Sharath Srinivasan <[email protected]>
Signed-off-by: Aron Silverton <[email protected]>

Orabug: 31620960

UEK6 => LUCI

(cherry picked from commit 4c8735e)
cherry-pick-repo=UEK/production/linux-uek.git
unmodified-from-upstream: 4c8735e

Signed-off-by: Sharath Srinivasan <[email protected]>
Reviewed-by: Sharon Liu <[email protected]>
Signed-off-by: Aron Silverton <[email protected]

Author: Yuval Shaia

drivers/infiniband/hw/mlx4/mad.c

@@ -2315,12 +2315,18 @@ int mlx4_ib_init_sriov(struct mlx4_ib_dev *dev)
 		return 0;
 	}
 
+#ifdef WITHOUT_ORACLE_EXTENSIONS
 	for (i = 0; i < dev->dev->caps.sqp_demux; i++) {
 		if (i == mlx4_master_func_num(dev->dev))
 			mlx4_put_slave_node_guid(dev->dev, i, dev->ib_dev.node_guid);
 		else
 			mlx4_put_slave_node_guid(dev->dev, i, mlx4_ib_gen_node_guid());
 	}
+#else
+	/* VF's node GUID is PF node GUID */
+	for (i = 0; i < dev->dev->caps.sqp_demux; i++)
+		mlx4_put_slave_node_guid(dev->dev, i, dev->ib_dev.node_guid);
+#endif /* WITHOUT_ORACLE_EXTENSIONS */
 
 	err = mlx4_ib_init_alias_guid_service(dev);
 	if (err) {