BGE_MSI_MODE
BGE_SETBIT(sc, BGE_MSI_MODE, BGE_MSIMODE_ENABLE);
CSR_READ_4(sc, BGE_MSI_MODE));
msi_mode = CSR_READ_4(sc, BGE_MSI_MODE);
CSR_WRITE_4(sc, BGE_MSI_MODE, msi_mode);
CSR_READ_4(sc, BGE_MSI_MODE));
msi_mode = CSR_READ_4(sc, BGE_MSI_MODE);
CSR_WRITE_4(sc, BGE_MSI_MODE, msi_mode);