nvme: add awun / nawun sanity check
AWUN/NAWUN control the atomicity of command execution in relation to
other commands. They impose inter-command serialization of writing of
blocks of data to the NVM and prevent blocks of data ending up on the
NVM containing partial data from one new command and partial data from
one or more other new commands.
Parse awun / nawun to verify at least the physical block size
exposed is not greater than this value.
The special case of awun / nawun == 0xffff tells us we can ramp
up to mdts.
Suggested-by: Dan Helmick <dan.helmick@samsung.com>
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
2 files changed
