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From: "Pathak, Pravin" <pravin.pathak@intel.com>
To: Adel Belkhiri <adel.belkhiri@gmail.com>,
	"users@dpdk.org" <users@dpdk.org>
Subject: RE: Problem configuring vhost-user NICs with multi queues (RSS) support
Date: Wed, 8 Jun 2022 00:30:53 +0000	[thread overview]
Message-ID: <BL1PR11MB54616665C4F97F5DD0D158CAF4A49@BL1PR11MB5461.namprd11.prod.outlook.com> (raw)
In-Reply-To: <CAMxxxdN++CFz9YEPKmcYq_AbsnAyyqLRfwE+1AwnzYjEqcqF7g@mail.gmail.com>

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Does your traffic have multiple 5 tuple flows to distribute it across multiple Rx queues?

From: Adel Belkhiri <adel.belkhiri@gmail.com>
Sent: Tuesday, June 7, 2022 7:29 PM
To: users@dpdk.org
Subject: Problem configuring vhost-user NICs with multi queues (RSS) support

Hi all,

I have a problem with the configuration of the sample application l3fdw for switching traffic between two vhost-user NICs, each with 4 queues. The traffic was generated using TREX, running inside a VM.

When I traced my experiment, I noticed that the traffic was only received in queue "0", while the other RX queues were empty. When I run the application, a msg is printed "Port 1 modified RSS hash function based on hardware support,requested:0xa38c configured:0".

It seems that while the vhost-user NIC implementation supports multiple queues, it does not support distributing the traffic between the RX queues.

I wonder if there is a way to make it work?

Thank you,

PS:
- DPDK version: 19.08
- Qemu version: 4.2.1

Adele

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  reply	other threads:[~2022-06-08  0:31 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-06-07 23:28 Adel Belkhiri
2022-06-08  0:30 ` Pathak, Pravin [this message]
  -- strict thread matches above, loose matches on Subject: below --
2022-06-07 23:25 Adel Belkhiri

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