On Tue, Sep 01, 2015 at 04:37:18PM +0200, Martin Dra?ar wrote: > Dne 1.9.2015 v 15:45 De Lara Guarch, Pablo napsal(a): > > 82574L NIC uses em PMD, which does not support more than 1 queue. > > Therefore RSS is disabled in the NIC and then you cannot have RSS hashes. > > > > Thanks, > > Pablo > > Hi Pablo, > > that is an interesting information. I read the rationale in em_ethdev.c > and I was wondering, what would have to be done to enable RSS hash > computation on that card. I can live with just one RX queue, but hashes > would help me a lot. The computer which is using those NICs is not that > powerful and every bit of offloaded computation counts... > > Thanks, > Martin
RSS calculations are used to direct packets across multiple RX queues. With only one RX queue it cannot possibly increase performance by enabling it. Matthew.
