Fix to accommodate a hardware bug in multiqueue mode that does not
 work properly when acknowledgement of MSIX Interrupts is disabled.
Signed-off-by: NAnirban Chakraborty <anirban.chakraborty@qlogic.com>
Signed-off-by: NGiridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>