ubsec(4) and AES
sam at errno.com
Tue Jan 15 10:17:32 PST 2008
Gergely CZUCZY wrote:
> On Tue, Jan 15, 2008 at 09:38:00AM -0800, Sam Leffler wrote:
>> Gergely CZUCZY wrote:
>>> Good morning,
>>> I'd like to ask whether there was any updates, news, anything
>>> about the Broadcom cryptoaccelerators' AES support in the recent
>>> past. ubsec(4) tells at the BUGS section, that it's awaiting
>>> some information from broadcom. It would be nice to have AES
>>> support for these cards, since the hifn(4) ones don't provide
>>> as much performance as the broadcom ones, according to the
>>> utilities in the source tree, google, and the vendors themselves.
>>>  http://www.freebsd.org/cgi/man.cgi?query=ubsec
>> Broadcom never gave me the ok to add the AES support; will ask again.
>> As to performance I believe hifn 7956 parts were on a par w/ the 5823 but it's been a long time. The main issue isn't the speed of the
>> crypto part but the bus+dma glue.
> And also stability. I've experience system crashing with the soekris vpn1401. It was
> kinda strange. Existing things worked (like an opened ssh connect, the box is a gateway),
> but I couldn't even fork() new processes, use apache, open new ssh connections to the
> box, anything. And the interrupt load was also a bit too high. Anyways, it's a different
Hifn contributed many driver fixes for the 795x parts but some are not
yet in cvs. However I recently tested a Hifn reference 7956 card w/
HEAD and couldn't make it fail as it used to. I've requested help
getting all the hifn changes into the tree but gotten no responses.
> Silicom has drivers for both windows and linux, and they support AES. I wasn't able to
> download the driver (got an empty page), so I don't know whether its opensource or not.
More information about the freebsd-hardware