Re: How do I know my driver support RSS?

[Ben Hutchings <bhutchings@solarflare.com>]

On Sat, 2012-03-03 at 16:25 -0500, Yuehai Xu wrote:
[...]
> Since I read the following statements from a paper, "we use a separate
> hardware receive and transmit queue for each core and configure the
> IXGBE to inspect the port number in each incoming packet header, place
> the packet on the queue dedicated to the associated memcached's core,
> and deliver the receive interrupt to that core." and the background of
> this configuration is that each memcached is pinned to a separate core
> and has its own UDP port. It seems that IXGBE's driver can detect UDP
> packets according to their port numbers and put these packets into
> corresponding receive queues in the hardware, is this achieved by
> configuring RSS in IXGBE? If it is, I am wondering whether bnx2
> supports RSS and whether it can configure in the same way.
> 
> I appreciate any help for this.

You're confusing RSS (flow hashing) with flow steering.  These are both
explained in Documentation/network/scaling.txt.

Ben.

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Ben Hutchings, Staff Engineer, Solarflare
Not speaking for my employer; that's the marketing department's job.
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