FC_FCTL_REL_OFF_SHIFT
#define FC_FCTL_REL_OFF_MASK (0x1 << FC_FCTL_REL_OFF_SHIFT)
#define FC_FCTL_REL_OFF_FALSE (0x0 << FC_FCTL_REL_OFF_SHIFT)
#define FC_FCTL_REL_OFF_TRUE (0x1 << FC_FCTL_REL_OFF_SHIFT)