config NVME_CORE tristate config BLK_DEV_NVME tristate "NVM Express block device" depends on PCI && BLOCK select NVME_CORE ---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 NVME_CORE ---help--- This adds support for the SG_IO ioctl on the NVMe character and block devices nodes, as well as 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, unless you run a distro that abuses the SCSI emulation to provide stable device names for mount by id, like some OpenSuSE and SLES versions.