From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from cm06fe.IST.Berkeley.EDU (cm06fe.IST.Berkeley.EDU [169.229.218.147]) by dpdk.org (Postfix) with ESMTP id DF7706A81 for ; Fri, 28 Feb 2014 01:23:20 +0100 (CET) Received: from mail-vc0-f169.google.com ([209.85.220.169]) by cm06fe.ist.berkeley.edu with esmtpsa (TLSv1:RC4-SHA:128) (Exim 4.76) (auth plain:sangjin@berkeley.edu) (envelope-from ) id 1WJBFt-00038h-KY for dev@dpdk.org; Thu, 27 Feb 2014 16:24:46 -0800 Received: by mail-vc0-f169.google.com with SMTP id hq11so3424485vcb.28 for ; Thu, 27 Feb 2014 16:24:44 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type:content-transfer-encoding; bh=mPs7N9OTxIWQ/QPrnVzejJ1ehgUYjD5MQKL7EOQOX9M=; b=YRmlnAWv73V5gzjTPiPB7TM5jJfUZxGuVYn7adbM9ZlIXHVFdkKCEvfwBDgBqwJH5k ICEkopXcLoJeOfWm1Uscd7PdZzXcdra0VsNwY70QUl/2yZLau5D8dQP5Wjkaml3lRCtT Z7VYfKU5yFbUYo+7G/Zms+tVdW7+1jwn1Ock6y6sRGrXB8ntfd07qgXMM2ZDUhcEsz8W 5+skoCWOcLJGTX88wLb/1tgiapaCOmfp8cjh5BOtX0d77HzTNZ42Nu2fnPVoL1i53SpS 2CO+A7KEposlesW3nRmzs/g1cH+OupqW+fSDT224n+19j65moxuVJTYySgN4bymo+Ef6 r7xQ== MIME-Version: 1.0 X-Received: by 10.221.20.199 with SMTP id qp7mr13185924vcb.24.1393547084456; Thu, 27 Feb 2014 16:24:44 -0800 (PST) Received: by 10.220.73.137 with HTTP; Thu, 27 Feb 2014 16:24:44 -0800 (PST) In-Reply-To: References: Date: Thu, 27 Feb 2014 16:24:44 -0800 Message-ID: From: Sangjin Han To: Daniel Kan Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Cc: dev@dpdk.org Subject: Re: [dpdk-dev] Is it possible to get symmetric hash from RSS for a given flow 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: Fri, 28 Feb 2014 00:23:21 -0000 Hi, This is exactly what you want: http://www.ndsl.kaist.edu/~shinae/papers/TR-symRSS.pdf Sangjin On Thu, Feb 27, 2014 at 4:22 PM, Daniel Kan wrote: > Hi, > It appears that the hash computed from RSS is unidirectional. Hence, for = a 5-tuple flow, packet in one direction can be routed to a queue that may b= e different than packet in the other direction. I'm wondering if there is a= configuration or mechanism to get a symmetric hash so that all packets for= a given flow will be in the same queue. Thanks in advance. > > Dan