From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) by dpdk.org (Postfix) with ESMTP id 3CEB11FE for ; Fri, 11 Jul 2014 22:37:32 +0200 (CEST) Received: from orsmga002.jf.intel.com ([10.7.209.21]) by orsmga101.jf.intel.com with ESMTP; 11 Jul 2014 13:38:00 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.01,645,1400050800"; d="scan'208";a="571904473" Received: from fmsmsx108.amr.corp.intel.com ([10.19.9.228]) by orsmga002.jf.intel.com with ESMTP; 11 Jul 2014 13:35:15 -0700 Received: from shsmsx152.ccr.corp.intel.com (10.239.6.52) by FMSMSX108.amr.corp.intel.com (10.19.9.228) with Microsoft SMTP Server (TLS) id 14.3.123.3; Fri, 11 Jul 2014 13:35:04 -0700 Received: from shsmsx104.ccr.corp.intel.com ([169.254.5.122]) by SHSMSX152.ccr.corp.intel.com ([169.254.6.36]) with mapi id 14.03.0123.003; Sat, 12 Jul 2014 04:35:01 +0800 From: "Zhou, Danny" To: "Shaw, Jeffrey B" , "John W. Linville" Thread-Topic: [dpdk-dev] [PATCH] librte_pmd_packet: add PMD for AF_PACKET-based virtual devices Thread-Index: AQHPnH/oRaQYxTj0SU2+uC1eGA1pJJubHZdggAAAcLD//4FWgIAAikNwgAARukD//4MCgIAAlMdg//97/gAAENjfUA== Date: Fri, 11 Jul 2014 20:35:01 +0000 Message-ID: References: <1405024369-30058-1-git-send-email-linville@tuxdriver.com> <20140711174042.GE25478@tuxdriver.com> <20140711193139.GJ25478@tuxdriver.com> <4032A54B6BB5F04B8C08B6CFF08C59285544ECD5@FMSMSX103.amr.corp.intel.com> In-Reply-To: <4032A54B6BB5F04B8C08B6CFF08C59285544ECD5@FMSMSX103.amr.corp.intel.com> Accept-Language: zh-CN, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.239.127.40] Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Cc: "dev@dpdk.org" Subject: Re: [dpdk-dev] [PATCH] 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, 11 Jul 2014 20:37:33 -0000 Thanks Jeff, it works as expected, like below command line: ./l2fwd/build/l2fwd -c 0x3 -n 4 --vdev=3Deth_packet0,iface=3Dp786p1 --vdev= =3Deth_packet1,iface=3Dp786p2 -- -p 0x3 > -----Original Message----- > From: Shaw, Jeffrey B > Sent: Saturday, July 12, 2014 4:32 AM > To: Zhou, Danny; John W. Linville > Cc: dev@dpdk.org > Subject: RE: [dpdk-dev] [PATCH] librte_pmd_packet: add PMD for > AF_PACKET-based virtual devices >=20 > Danny, can you specify multiple --vdev parameters? > "--vdev=3Deth_packet0,iface=3Deth0 --vdev=3Deth_packet1,iface=3Deth1" >=20 >=20 > -----Original Message----- > From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of Zhou, Danny > Sent: Friday, July 11, 2014 1:27 PM > To: John W. Linville > Cc: dev@dpdk.org > Subject: Re: [dpdk-dev] [PATCH] librte_pmd_packet: add PMD for > AF_PACKET-based virtual devices >=20 > I want to run a common DPDK L2 or L3 forward benchmark for bi-direction t= raffics, > so at least two ports are required. Just like how to measure Linux bridge= or OVS > performance, you need add at least two ports into a bridge. >=20 > > -----Original Message----- > > From: John W. Linville [mailto:linville@tuxdriver.com] > > Sent: Saturday, July 12, 2014 3:32 AM > > To: Zhou, Danny > > Cc: dev@dpdk.org > > Subject: Re: [dpdk-dev] [PATCH] librte_pmd_packet: add PMD for > > AF_PACKET-based virtual devices > > > > I'm not sure that would make any sense -- the AF_PACKET sockets are > > mapped to specific interfaces. > > > > What are you trying to do with a syntax like that? > > > > John > > > > On Fri, Jul 11, 2014 at 07:04:19PM +0000, Zhou, Danny wrote: > > > Does it support specifying multiple NIC interfaces using command > > > line option like > > "--vdev=3Deth_packet0,iface=3D..."? Say "iface=3Deth0,eth1,eth2...", tr= ied > > but it doesn't work. > > > > > > > -----Original Message----- > > > > From: Zhou, Danny > > > > Sent: Saturday, July 12, 2014 2:01 AM > > > > To: 'John W. Linville' > > > > Cc: dev@dpdk.org > > > > Subject: RE: [dpdk-dev] [PATCH] librte_pmd_packet: add PMD for > > > > AF_PACKET-based virtual devices > > > > > > > > Tried on 3.12, both of them are undefined. Anyway, will comment > > > > them out and see what performance it could achieve. > > > > > > > > > -----Original Message----- > > > > > From: John W. Linville [mailto:linville@tuxdriver.com] > > > > > Sent: Saturday, July 12, 2014 1:41 AM > > > > > To: Zhou, Danny > > > > > Cc: dev@dpdk.org > > > > > Subject: Re: [dpdk-dev] [PATCH] librte_pmd_packet: add PMD for > > > > > AF_PACKET-based virtual devices > > > > > > > > > > On Fri, Jul 11, 2014 at 05:20:42PM +0000, Zhou, Danny wrote: > > > > > > Looks like you used a pretty new kernel version with new > > > > > > socket options that old > > > > > kernel like my 3.12 does not support. When I tried this patch, > > > > > it just cannot build, and compiler complains like below. Which > > > > > Linux distribution does this > > > > patch work for? > > > > > How to ensure it works for old kernels? > > > > > > > > > > > > /home/danny/dpdk.org/dpdk/lib/librte_pmd_packet/rte_eth_packet > > > > > > .c > > > > > > : In function > > > > > rte_pmd_init_internals: > > > > > > /home/danny/dpdk.org/dpdk/lib/librte_pmd_packet/rte_eth_packet > > > > > > .c > > > > > > :524 > > > > > > :1 > > > > > > 7: error: PACKET_FANOUT_FLAG_ROLLOVER undeclared (first use in > > > > > > this > > > > > > function) > > > > > > /home/danny/dpdk.org/dpdk/lib/librte_pmd_packet/rte_eth_packet > > > > > > .c > > > > > > :524 > > > > > > :1 > > > > > > 7: note: each undeclared identifier is reported only once for > > > > > > each function it appears in > > > > > > /home/danny/dpdk.org/dpdk/lib/librte_pmd_packet/rte_eth_packet > > > > > > .c > > > > > > :557 > > > > > > :3 > > > > > > 3: error: PACKET_QDISC_BYPASS undeclared (first use in this > > > > > > function) > > > > > > > > > > Both of them are isolated, so for playing with it you could just > > > > > comment those > > out. > > > > > It looks like PACKET_FANOUT_FLAG_ROLLOVER should have been in > > > > > 3.10, while PACKET_QDISC_BYPASS didn't show-up until 3.14... > > > > > > > > > > /home/linville/git/linux > > > > > [linville-x1.hq.tuxdriver.com]:> git annotate > > > > > include/uapi/linux/if_packet.h | grep PACKET_FANOUT_FLAG_ROLLOVER > > > > > 77f65ebdca506 (Willem de Bruijn 2013-03-19 10:18:11 +0000 > 64)#define > > > > > PACKET_FANOUT_FLAG_ROLLOVER 0x1000 > > > > > > > > > > /home/linville/git/linux > > > > > [linville-x1.hq.tuxdriver.com]:> git show -s --format=3Dshort > > > > > 77f65ebdca506 commit 77f65ebdca506870d99bfabe52bde222511022ec > > > > > Author: Willem de Bruijn > > > > > > > > > > packet: packet fanout rollover during socket overload > > > > > > > > > > /home/linville/git/linux > > > > > [linville-x1.hq.tuxdriver.com]:> git describe --contains > > > > > 77f65ebdca506 > > > > > v3.10-rc1~66^2~423 > > > > > > > > > > /home/linville/git/linux > > > > > [linville-x1.hq.tuxdriver.com]:> git annotate > > > > > include/uapi/linux/if_packet.h | grep PACKET_QDISC_BYPASS > > > > > d346a3fae3ff1 (Daniel Borkmann 2013-12-06 11:36:17 +0100 56)#defi= ne > > > > > PACKET_QDISC_BYPASS 20 > > > > > > > > > > /home/linville/git/linux > > > > > [linville-x1.hq.tuxdriver.com]:> git show -s --format=3Dshort > > > > > d346a3fae3ff1 commit > > > > > d346a3fae3ff1d99f5d0c819bf86edf9094a26a1 > > > > > Author: Daniel Borkmann > > > > > > > > > > packet: introduce PACKET_QDISC_BYPASS socket option > > > > > > > > > > /home/linville/git/linux > > > > > [linville-x1.hq.tuxdriver.com]:> git describe --contains > > > > > d346a3fae3ff1 > > > > > v3.14-rc1~94^2~564 > > > > > > > > > > Is there an example of code in DPDK that requires specific > > > > > kernel versions? What is the preferred method for coding such > dependencies? > > > > > > > > > > John > > > > > -- > > > > > John W. Linville Someday the world will need a hero, and you > > > > > linville@tuxdriver.com might be all we have. Be ready. > > > > > > > -- > > John W. Linville Someday the world will need a hero, and you > > linville@tuxdriver.com might be all we have. Be ready.