BIT_PFC
changes |= BIT_PFC;
changes |= BIT_PFC;
if (adapter->dcb_set_bitmap & BIT_PFC) {
changes |= (BIT_PG_TX | BIT_PFC | BIT_APP_UPCHG);
u8 mask = BIT_PFC | BIT_PG_TX | BIT_PG_RX | BIT_APP_UPCHG;
changes |= (BIT_PG_RX | BIT_PFC | BIT_APP_UPCHG);