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* Question about vf rss of dpdk ixgbevf driver
@ 2022-04-14  0:45 Xiongwei Song
  2022-04-14  2:03 ` Stephen Hemminger
  2022-04-14  2:28 ` Harold Huang
  0 siblings, 2 replies; 3+ messages in thread
From: Xiongwei Song @ 2022-04-14  0:45 UTC (permalink / raw)
  To: users

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

^ permalink raw reply	[flat|nested] 3+ messages in thread

* Re: Question about vf rss of dpdk ixgbevf driver
  2022-04-14  0:45 Question about vf rss of dpdk ixgbevf driver Xiongwei Song
@ 2022-04-14  2:03 ` Stephen Hemminger
  2022-04-14  2:28 ` Harold Huang
  1 sibling, 0 replies; 3+ messages in thread
From: Stephen Hemminger @ 2022-04-14  2:03 UTC (permalink / raw)
  To: Xiongwei Song; +Cc: users

On Thu, 14 Apr 2022 08:45:46 +0800
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.


This was fixed in later versions of DPDK.

^ permalink raw reply	[flat|nested] 3+ messages in thread

* Re: Question about vf rss of dpdk ixgbevf driver
  2022-04-14  0:45 Question about vf rss of dpdk ixgbevf driver Xiongwei Song
  2022-04-14  2:03 ` Stephen Hemminger
@ 2022-04-14  2:28 ` Harold Huang
  1 sibling, 0 replies; 3+ messages in thread
From: Harold Huang @ 2022-04-14  2:28 UTC (permalink / raw)
  To: Xiongwei Song; +Cc: users, Stephen Hemminger

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.

^ permalink raw reply	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2022-04-14  2:28 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2022-04-14  0:45 Question about vf rss of dpdk ixgbevf driver Xiongwei Song
2022-04-14  2:03 ` Stephen Hemminger
2022-04-14  2:28 ` Harold Huang

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