Provided by: freebsd-manpages_12.0-1_all
nda — NVMe Direct Access device driver
device nvme device scbus
The nda driver provides support for direct access devices, implementing the NVMe command protocol, that are attached to the system through a host adapter supported by the CAM subsystem.
The following variables are available as both sysctl(8) variables and loader(8) tunables: kern.cam.nda.sort_io_queue This variable determines whether the software queued entries are sorted in LBA order or not. Sorting is almost always a waste of time. The default is to not sort. The following report per-device settings, and are read-only unless otherwise indicated. Replace N with the device unit number. kern.cam.nda.N.rotating This variable reports whether the storage volume is spinning or flash. It's value is hard coded to 0 indicating flash. kern.cam.nda.N.unmapped_io This variable reports whether the nda driver accepts unmapped I/O for this unit.
/dev/nda* NVMe storage device nodes
The nda driver first appeared in FreeBSD 12.0.
Warner Losh <imp@FreeBSD.org>