MFI_OMSK
MFI_WRITE4(sc, MFI_OMSK, 0x01);
MFI_WRITE4(sc, MFI_OMSK, ~MFI_1078_EIM);
MFI_WRITE4(sc, MFI_OMSK, ~MFI_GEN2_EIM);
MFI_WRITE4(sc, MFI_OMSK, ~0x00000001);
MFI_WRITE4(sc, MFI_OMSK, 0xFFFFFFFF);
MFI_READ4(sc, MFI_OMSK);
MFI_WRITE4(sc, MFI_OMSK, ~MFI_FUSION_ENABLE_INTERRUPT_MASK);
MFI_READ4(sc, MFI_OMSK);