From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wg0-f42.google.com (mail-wg0-f42.google.com [74.125.82.42]) by dpdk.org (Postfix) with ESMTP id 2B5C85942 for ; Mon, 3 Nov 2014 08:49:18 +0100 (CET) Received: by mail-wg0-f42.google.com with SMTP id k14so11815499wgh.1 for ; Sun, 02 Nov 2014 23:58:31 -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=dUB86HQG1tM7CUOqFES4XAgCgHCfROEjE+AXx0rxwaU=; b=b6iIWVmFHKVNbt4n9QnNkhvk4HO6DUVAOa9gcj6wxQ0bv3bgmtYNAaxHcrqff20USg ZblWb1w5/LKPgq7jNdLKjGbuF1/T/FtcGZuipTBlq2kQx4tJ6KHXdCCJVJVDeoHKI3hJ BWESJ1Tljn6sX84MHB6qNkP5AGowgPs3qKyiJJo9DH5UV45gATrRH5Wx6xU/fDLPF2CF 3V+7iDZJI5Ivso+FyFx5uTogE/GuLBeHV6sGEez/kNl6aD+O5lIijWMdJmmTMoTySSB2 fSRn7AtjYHblaDdSezTfYY1Z9wa9/fUU6vx+V8HObkB5SoZF+PalXcBDCbJ5mFDh62lx gjlQ== X-Gm-Message-State: ALoCoQnGn5dyvLXnbPruSqkrsIakRiCb53qH2qh/PuzbWxvirmawkLqBg9n2Iw0H36vbM97Cj3ge X-Received: by 10.180.96.162 with SMTP id dt2mr9289811wib.66.1415001511273; Sun, 02 Nov 2014 23:58:31 -0800 (PST) Received: from xps13.localnet (3.17.90.92.rev.sfr.net. [92.90.17.3]) by mx.google.com with ESMTPSA id r10sm7783050wiy.19.2014.11.02.23.58.29 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sun, 02 Nov 2014 23:58:30 -0800 (PST) From: Thomas Monjalon To: Helin Zhang Date: Mon, 03 Nov 2014 08:49:40 +0100 Message-ID: <1493143.C52zTo8RWN@xps13> Organization: 6WIND User-Agent: KMail/4.14.2 (Linux/3.17.1-1-ARCH; KDE/4.14.2; x86_64; ; ) In-Reply-To: <1413861289-26662-2-git-send-email-helin.zhang@intel.com> References: <1413180766-12211-1-git-send-email-helin.zhang@intel.com> <1413861289-26662-1-git-send-email-helin.zhang@intel.com> <1413861289-26662-2-git-send-email-helin.zhang@intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="us-ascii" Cc: dev@dpdk.org Subject: Re: [dpdk-dev] [PATCH v5 1/5] i40e: Use constant random hash keys 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, 03 Nov 2014 07:49:18 -0000 Hi Helin, The title is a bit surprising: - it should be about RSS - a constant cannot be really random ;) 2014-10-21 11:14, Helin Zhang: > To be simpler, and remove the race condition, it uses prepared > constant random hash keys to replace runtime generating the hash > keys. Could you explain what is the role of rss_key_default? Thanks -- Thomas