AMD Geode LX crypto accelerator (glxsb)

Niki Denev ndenev at
Sun Jun 22 18:02:08 UTC 2008

On Sun, Jun 22, 2008 at 6:05 PM, Patrick Lamaizière
<patfbsd at> wrote:
> Le Fri, 6 Jun 2008 23:41:35 +0200,
> Patrick Lamaizière <patfbsd at> a écrit :
> Hello,
>> I'm trying to port the glxsb driver from OpenBSD to FreeBSD 7-STABLE
>> (via the NetBSD port).
>> " The glxsb driver supports the security block of the Geode LX
>> series processors.  The Geode LX is a member of the AMD Geode family
>> of integrated x86 system chips.
>> Driven by periodic checks for available data from the generator,
>> glxsb supplies entropy to the random(4) driver for common usage.
>> glxsb also supports acceleration of AES-128-CBC operations for
>> crypto(4)."
> Well, I hope this is the final version.
> I added a patch for FreeBSD 6 but i'am not able to test it.
> On 7-STABLE, I've tested with hundred openssl encryptions and some flood
> pings under ipsec in the background. Looks good for me.
> If someone can test and review it, it would be cool.
> Thanks, Regards.

It compiles on without a problem on 6.2 and loads on my Soekris
Net5501-70 running pfSense (6.2-RELEASE-p11)

glxsb0: <AMD Geode LX Security Block (AES-128-CBC,RNG)> mem
0xa0000000-0xa0003fff irq 10 at device 1.2 on pci0


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