IXGBE_VFMAILBOX_PFSTS
if (!ixgbevf_check_for_bit_vf(hw, IXGBE_VFMAILBOX_PFSTS)) {
if (vf_mailbox & IXGBE_VFMAILBOX_PFSTS) {
hw->mbx.vf_mailbox &= ~IXGBE_VFMAILBOX_PFSTS;