[dpdk-dev] Symmetric RSS Hashing, Part 2

[Zhang, Helin]

Hi guys

Did you guys talk about symmetric hash in software or in hardware?

If about hardware, I have one comment.
I40e supports symmetric hash by hardware, which was enabled in i40e PMD recently. You can have a try.

Regards,
Helin

> -----Original Message-----
> From: dev [mailto:dev-bounces at dpdk.org] On Behalf Of Matthew Hall
> Sent: Tuesday, March 24, 2015 5:27 AM
> To: Thomas Monjalon
> Cc: dev at dpdk.org
> Subject: Re: [dpdk-dev] Symmetric RSS Hashing, Part 2
> 
> On Mon, Mar 23, 2015 at 04:20:33PM +0100, Thomas Monjalon wrote:
> > 2015-03-23 10:05, Matt Laswell:
> > > Hey Folks,
> > >
> > > I have essentially the same question as Matthew.  Has there been
> > > progress in this area?
> >
> > No, AFAIK.
> > Submitting a patch would be a good start I think.
> 
> Hi Thomas,
> 
> We did have somebody in the past thread who tried the key recommended in a
> scientific paper to get a symmetric hash, 0x6d5a I believe. However it didn't
> seem to get the expected results when tested in real life.
> 
> We're happy to make patches but we're not sure of the content to put in there
> if the only such RSS key we heard about didn't work when it was tested. Is there
> a subject matter expert in RSS who would be able to assist in more detail to
> figure out what went wrong?
> 
> Matthew.