Kinston HyperX M.2 PCIe drives

[Guillermo Amaral <g@maral.me>]

Hi guys,

So I got my hands on a Kingston HyperX M.2 PCIe drive and noticed it has
really poor performance on Linux.

I get about half write speed of a SATA III SSD and about half better
read speed than a SATA III SSD (3/2) but somebody actually did a proper
benchmark on Linux:

  http://www.phoronix.com/scan.php?page=article&item=kingston-hyperx-pred

It uses a Marvell 88SS9293 controller, I was wondering if anybody else
has seen simiar issues with this controller or if there's a way to
figure out what's wrong without the datasheet (since it doesn't seem to
be publicly available).

I noticed kept getting FPDMA READ errors while testing it so I disabled
NCQ for now to avoid hangs.

I would love to help get this drive working if anybody can point me in
the right direction: I have dmesg, lcpci, hdparm output available for
anybody interested, I can also dual-boot into a *Winfferent* OS where
the drive works fine.

Cheers,
G

-- 
gamaral