On Mon, Aug 26, 2024 at 10:36:06PM +0530, Kanchan Joshi wrote: > Flexible Data Placement (FDP), as ratified in TP 4146a, allows the host > to control the placement of logical blocks so as to reduce the SSD WAF. > > Userspace can send the data placement information using the write hints. > Fetch the placement-identifiers if the device supports FDP. > > The incoming placement hint is mapped to a placement-identifier, which > in turn is set in the DSPEC field of the write command. > > Signed-off-by: Kanchan Joshi <joshi.k@xxxxxxxxxxx> > Signed-off-by: Nitesh Shetty <nj.shetty@xxxxxxxxxxx> > Signed-off-by: Hui Qi <hui81.qi@xxxxxxxxxxx> I'm still fine with this nvme implementation. Acked-by: Keith Busch <kbusch@xxxxxxxxxx> The reporting via fcntl looks okay to me, but I've never added anything to that interface, so not sure if there's any problem using it for this.
