NV_MSI_X_VECTOR_ALL
enable_irq(np->msi_x_entry[NV_MSI_X_VECTOR_ALL].vector);
disable_irq(np->msi_x_entry[NV_MSI_X_VECTOR_ALL].vector);
ret = request_irq(np->msi_x_entry[NV_MSI_X_VECTOR_ALL].vector,
irq = np->msi_x_entry[NV_MSI_X_VECTOR_ALL].vector;