IGB_VF_MBX_PENDING
vf->flags &= ~IGB_VF_MBX_PENDING;
if ((vf->flags & IGB_VF_MBX_PENDING) == 0)
vf->flags &= ~(IGB_VF_CTS | IGB_VF_MBX_PENDING);
(IGB_VF_MBX_PENDING | IGB_VF_MBX_GAVE_UP)) == 0 &&
vf->flags |= IGB_VF_MBX_PENDING;
IGB_VF_MBX_PENDING | IGB_VF_MBX_GAVE_UP |