config BLK_DEV_NVME tristate "NVM Express block device" depends on PCI && BLOCK ---help--- The NVM Express driver is for solid state drives directly connected to the PCI or PCI Express bus. If you know you don't have one of these, it is safe to answer N. To compile this driver as a module, choose M here: the module will be called nvme. config BLK_DEV_NVME_SCSI bool "SCSI emulation for NVMe device nodes" depends on BLK_DEV_NVME ---help--- This adds support for the SG_IO ioctl on the NVMe character and block devices nodes, as well a a translation for a small number of selected SCSI commands to NVMe commands to the NVMe driver. If you don't know what this means you probably want to say N here, and if you know what it means you probably want to say N as well.