From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wi0-f182.google.com (mail-wi0-f182.google.com [209.85.212.182]) by dpdk.org (Postfix) with ESMTP id 426E58052 for ; Mon, 15 Dec 2014 21:33:31 +0100 (CET) Received: by mail-wi0-f182.google.com with SMTP id h11so10310741wiw.15 for ; Mon, 15 Dec 2014 12:33:30 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:cc:subject:date:message-id:organization :user-agent:in-reply-to:references:mime-version :content-transfer-encoding:content-type; bh=l/AWLu/EkYPbMxXktZ89hUXZUxEclhXaMSKXGnFoflc=; b=VeXeAENLcEbTTnRiQ58tlKLX4G1UlSseWXpkcR0sRwd0pL2uEkkPNQf+4rir1dr2hs jl+XwDmFfESrR8G9/HFR9i6QNd1WjNMDWAkCNGIZlXE2QpngoSuXdnoBpTp+FGw4Qzpv 4o4ora0fDgcBmq0OGajlfIucsfREKt+s0NOGpsmOfy62Mccv6EeTBNf/zkTaXM5zrvzj i60IeB2S033Ndn9IxAmFc9RIYkiUktsgoiP4zN+pGquEt4ZYIO8ya1OgcZImioB3W6Re q/85cF5/TFBtwCpn1J5lOXrMMEwTyD0GAck4T4PtgyAtpy3Onfmbs8FrxJwBwBL9doC9 zejQ== X-Gm-Message-State: ALoCoQlZXH48w+HOEqPP+MoIEe00UlhF9Nk3Wtj9zU6vJLIC7Y8pxT0zfE+Sz2IkkkioxGLveM94 X-Received: by 10.194.237.101 with SMTP id vb5mr55671038wjc.30.1418675610099; Mon, 15 Dec 2014 12:33:30 -0800 (PST) Received: from xps13.localnet (136-92-190-109.dsl.ovh.fr. [109.190.92.136]) by mx.google.com with ESMTPSA id wa5sm14338793wjc.8.2014.12.15.12.33.28 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 15 Dec 2014 12:33:29 -0800 (PST) From: Thomas Monjalon To: Vladislav Zolotarov Date: Mon, 15 Dec 2014 21:33:04 +0100 Message-ID: <6168753.p4Vk7dlKkK@xps13> Organization: 6WIND User-Agent: KMail/4.14.3 (Linux/3.17.4-1-ARCH; KDE/4.14.3; x86_64; ; ) In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="us-ascii" Cc: dev@dpdk.org, Dor Laor , Avi Kivity , Gleb Natapov Subject: Re: [dpdk-dev] DPDK RSS support for ixgbevf PMD X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 15 Dec 2014 20:33:31 -0000 2014-12-15 21:11, Vladislav Zolotarov: > Hi, > I'm running an ixgbevf PMD on an AWS guests with extended networking > (SR-IOV functions of 82599 Intel's NIC) and noticed that even in the > current git tree there is no support for a multi-queue in this PMD: reta > size returned by rte_eth_dev_info_get() call is 0, while max_rx_queues and > max_tx_queues are both 4. > > Linux ixgbevf-2.15.3 driver on the other hand successfully initializes 2 > RSS queues: for some reason it always limits the number of RSS queues by 2. > > ixgbevf_main.c: line 2539 > u16 rss = min_t(u16, num_online_cpus(), 2); > > The above is strange since if MRQE is set to 1010b there are 4 RSS queues > available which seems to be the case in my AWS Guest. > > However, let's get back to DPDK. As I've mentioned above the SR-IOV > function i have is RSS capable (to be 100% sure I've verified both queues > are receiving packets in a multi-socket TCP test). And it's a shame I can't > utilize it with a DPDK. Yes, it is not yet supported. But a patch was recently sent: http://dpdk.org/ml/archives/dev/2014-December/010028.html > I wonder if there are any blockers to add this capability to the ixgbevf > PMD and if not is it scheduled to some time soon? Please jump in the above thread for your questions. My turn to ask a question: Does it mean DPDK is going to be supported in your system (OSv)? I've seen it in the OSv roadmap. Could we have more details about how it would be integrated? Thanks -- Thomas