From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from smtp.tuxdriver.com (charlotte.tuxdriver.com [70.61.120.58]) by dpdk.org (Postfix) with ESMTP id 910173F9 for ; Fri, 6 Jun 2014 21:59:55 +0200 (CEST) Received: from uucp by smtp.tuxdriver.com with local-rmail (Exim 4.63) (envelope-from ) id 1Wt0J5-0002A5-K0; Fri, 06 Jun 2014 16:00:08 -0400 Received: from linville-x1.hq.tuxdriver.com (localhost.localdomain [127.0.0.1]) by linville-x1.hq.tuxdriver.com (8.14.8/8.14.6) with ESMTP id s56Jv7Ae013931; Fri, 6 Jun 2014 15:57:07 -0400 Received: (from linville@localhost) by linville-x1.hq.tuxdriver.com (8.14.8/8.14.8/Submit) id s56Jv6rw013930; Fri, 6 Jun 2014 15:57:06 -0400 Date: Fri, 6 Jun 2014 15:57:06 -0400 From: "John W. Linville" To: Chris Wright Message-ID: <20140606195706.GB13595@tuxdriver.com> References: <1402082754-12921-1-git-send-email-linville@tuxdriver.com> <20140606194748.GT16092@x220.localdomain> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140606194748.GT16092@x220.localdomain> User-Agent: Mutt/1.5.23 (2014-03-12) Cc: dev@dpdk.org Subject: Re: [dpdk-dev] [RFC] librte_pmd_packet: add PMD for AF_PACKET-based virtual devices 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, 06 Jun 2014 19:59:55 -0000 On Fri, Jun 06, 2014 at 12:47:48PM -0700, Chris Wright wrote: > * John W. Linville (linville@tuxdriver.com) wrote: > > This is a Linux-specific virtual PMD driver backed by an AF_PACKET > > socket. The current implementation uses mmap'ed ring buffers to > > limit copying and user/kernel transitions. The intent is also to take > > advantage of fanout and any future AF_PACKET optimizations as well. > > > > This is intended to provide a means for using DPDK on a broad range > > of hardware without hardware-specifi PMDs and hopefully with better > > performance than what PCAP offers in Linux. This might be useful > > as a development platform for DPDK applications when DPDK-supported > > hardware is expensive or unavailable. > > Nice, have you compared yet w/ PCAP numbers? No, sorry -- definitely needs more testing, including performance numbers... John -- John W. Linville Someday the world will need a hero, and you linville@tuxdriver.com might be all we have. Be ready.