DPDK patches and discussions
 help / color / mirror / Atom feed
From: "Martin Drašar" <drasar@ics.muni.cz>
To: dev@dpdk.org
Subject: Re: [dpdk-dev] Broken RSS hash computation on Intel 82574L
Date: Tue, 1 Sep 2015 16:37:18 +0200	[thread overview]
Message-ID: <55E5B81E.8010601@ics.muni.cz> (raw)
In-Reply-To: <E115CCD9D858EF4F90C690B0DCB4D8973C7EF8C0@IRSMSX108.ger.corp.intel.com>

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

  reply	other threads:[~2015-09-01 14:37 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-08-31 12:15 Martin Drašar
2015-09-01 13:45 ` De Lara Guarch, Pablo
2015-09-01 14:37   ` Martin Drašar [this message]
2015-09-01 14:47     ` Matthew Hall
2015-09-01 14:50       ` Avi Kivity
2015-09-01 15:00         ` Martin Drašar
2015-09-01 15:19       ` Jim Thompson

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=55E5B81E.8010601@ics.muni.cz \
    --to=drasar@ics.muni.cz \
    --cc=dev@dpdk.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).