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From: Harold Huang <baymaxhuang@gmail.com>
To: Xiongwei Song <sxwjean@gmail.com>
Cc: users@dpdk.org, Stephen Hemminger <stephen@networkplumber.org>
Subject: Re: Question about vf rss of dpdk ixgbevf driver
Date: Thu, 14 Apr 2022 10:28:30 +0800
Message-ID: <CAHJXk3aKk-PeMnH2kEsrXt3jvi9M-WB8v_PseDk14YMco9eMgg@mail.gmail.com> (raw)
In-Reply-To: <CAEVVKH_ATVrA=ysh0FdOpdnNab5xkM=JyEe+HOqS8fB=Bi48eg@mail.gmail.com>

On Thu, Apr 14, 2022 at 8:46 AM Xiongwei Song <sxwjean@gmail.com> wrote:
>
> Hi Experts,
>
> I am a dpdk beginner. I am investigating how to use vf rss with Linux ixgbe
> and dpdk ixgbevf.
>
> I saw the description on Intel 82599 from
> https://doc.dpdk.org/guides/nics/intel_vf.html:
> "The current implementation of the DPDK ixgbevf driver supports a single
> queue pair (RX/TX) per Virtual Function."
> Does it mean the DPDK ixgbevf driver doesn't support vf rss? I'm using
> dpdk-16.11.
>
> I would appreciate your help.
>
> Regards,
> Xiongwei

Do you use fdir to match and send specific flow to vf? It seems that
vf rss hash is not supported in 82599 nic. I have also met the same
problem and finally I have to disable RSS hash in the vf driver in a
tricky way. See this thread below:
https://mails.dpdk.org/archives/users/2022-March/006261.html

--
Thanks, Harold.

      parent reply	other threads:[~2022-04-14  2:28 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-04-14  0:45 Xiongwei Song
2022-04-14  2:03 ` Stephen Hemminger
2022-04-14  2:28 ` Harold Huang [this message]

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