From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <vincent.mc.li@gmail.com>
Received: from mail-lf0-f43.google.com (mail-lf0-f43.google.com
 [209.85.215.43]) by dpdk.org (Postfix) with ESMTP id 3FDBA2A5B
 for <users@dpdk.org>; Thu, 11 Feb 2016 20:10:59 +0100 (CET)
Received: by mail-lf0-f43.google.com with SMTP id l143so38118467lfe.2
 for <users@dpdk.org>; Thu, 11 Feb 2016 11:10:59 -0800 (PST)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113;
 h=mime-version:in-reply-to:references:date:message-id:subject:from:to
 :cc:content-type;
 bh=qlM5mpAGXObpvWp4vxklgvGW/oYIn9sCOjnXfF3CaKQ=;
 b=Eby1KhK+ehtw7k3w218opA8LRm32uVqfcsZZlfL7Cugdb4dUlUG36ZmFKqSI7zW78d
 j9QTl1rwbb78vFpXYEFHVAO6UsW6oIW/sJZ70ePE0rAAjEudaCgxVz75D7Sj1uNvK7dE
 wdiHPDeGl8ChNeW5AZ0+faucEjuyUsv3j/LrIlzjIgjao6uwHk2op1iggNtkFvKNSFR3
 6rlf0hcYif0Ge4U4cXfHJ87q5b0UPToQUAU9AuvY9HGjsFNvuagpuUrLXApceL1yqvuG
 /bgCMT/3Z1a9YBxJd2HZQ8R5Nqe812azILVDLVGM8Wnvehexdj9SdkdKmQgrkDIJcgdP
 NZDQ==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
 d=1e100.net; s=20130820;
 h=x-gm-message-state:mime-version:in-reply-to:references:date
 :message-id:subject:from:to:cc:content-type;
 bh=qlM5mpAGXObpvWp4vxklgvGW/oYIn9sCOjnXfF3CaKQ=;
 b=h4AI81kvnTGlMVqqyd6wY/DYikpLBp1dKOps4o7WaPKivH7iZ2ky6432tKnqyHorUg
 2P+t8XLqjT8vh965mvU8d7DKPMPBShOSnyfhGchR3piRgxfkGr6oS9AG2TaOlw6abhvM
 Qza+Ww5syJZipvS+Vkf4GZv1UIjWJIgjqpJ86ugRR/zeandV9Q+4duZBqjUI+1RJBzl2
 EX3/kvmJ9D5xIZYVHYnyRh8xJXP9nkQLxSg7j7Na2zUYdHNi6rpdz/uXRf2Ojqr3sQiT
 S2MxSUMr6m85jQNA8KcGMtdSaHAifkEGbv0vypbn+UwyS37B6299SbMm8DnbtB/0+PkM
 9GQA==
X-Gm-Message-State: AG10YORYw+DgStt+3mqmrQZHc6xt6wlVPNDwsrpFNz+M92N2ACkJUNQWVx+PQn8jfOBkSRYGC2joDBAk9xHLkw==
MIME-Version: 1.0
X-Received: by 10.25.42.18 with SMTP id q18mr19641931lfq.151.1455217858876;
 Thu, 11 Feb 2016 11:10:58 -0800 (PST)
Received: by 10.25.90.199 with HTTP; Thu, 11 Feb 2016 11:10:58 -0800 (PST)
In-Reply-To: <CAKbMwWq4gbY2yRHiTu4qqxxsK-xoJsqsfn_--E8tBHa65sB4Ww@mail.gmail.com>
References: <CAKbMwWq4gbY2yRHiTu4qqxxsK-xoJsqsfn_--E8tBHa65sB4Ww@mail.gmail.com>
Date: Thu, 11 Feb 2016 11:10:58 -0800
Message-ID: <CAK3+h2yJn9kHYrUObvvmu744HPE9Z92KD171UUxJ6E50zmz3dw@mail.gmail.com>
From: Vincent Li <vincent.mc.li@gmail.com>
To: Non Voglio <harold.demure87@gmail.com>
Content-Type: text/plain; charset=UTF-8
Cc: users@dpdk.org
Subject: Re: [dpdk-users] DPDK 2.2 MLX4: problem with number of TX/RX queues
X-BeenThere: users@dpdk.org
X-Mailman-Version: 2.1.15
Precedence: list
List-Id: usage discussions <users.dpdk.org>
List-Unsubscribe: <http://dpdk.org/ml/options/users>,
 <mailto:users-request@dpdk.org?subject=unsubscribe>
List-Archive: <http://dpdk.org/ml/archives/users/>
List-Post: <mailto:users@dpdk.org>
List-Help: <mailto:users-request@dpdk.org?subject=help>
List-Subscribe: <http://dpdk.org/ml/listinfo/users>,
 <mailto:users-request@dpdk.org?subject=subscribe>
X-List-Received-Date: Thu, 11 Feb 2016 19:10:59 -0000

On Thu, Feb 11, 2016 at 6:24 AM, Non Voglio <harold.demure87@gmail.com> wrote:
> Hello,
>   I am new to the DPDK world and I am having some troubles in using some
> code (not written by me).
>
> In particular, I bump into this error when invoking the  rte_eth_dev_configure
> function:
>
> PMD: librte_pmd_mlx4: 0x10a4d2a0: TX queues number update: 0 -> 16
>
> PMD: librte_pmd_mlx4: 0x10a4d2a0: RX queues number update: 0 -> 16
>
> PMD: librte_pmd_mlx4: 0x10a4d2a0: only a single RX queue can be configured
> when hardware doesn't support RSS
>

it appears you must enable RSS support to use multiple RX queue

        if (!priv->hw_rss) {
                ERROR("%p: only a single RX queue can be configured when"
                      " hardware doesn't support RSS",
                      (void *)dev);
                return EINVAL;
        }

Vincent