From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga14.intel.com (mga14.intel.com [192.55.52.115]) by dpdk.org (Postfix) with ESMTP id 4F78B2A9 for ; Fri, 11 Jul 2014 21:03:59 +0200 (CEST) Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga103.fm.intel.com with ESMTP; 11 Jul 2014 11:58:20 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.01,644,1400050800"; d="scan'208";a="560638189" Received: from fmsmsx106.amr.corp.intel.com ([10.19.9.37]) by fmsmga001.fm.intel.com with ESMTP; 11 Jul 2014 12:04:22 -0700 Received: from fmsmsx113.amr.corp.intel.com (10.18.116.7) by FMSMSX106.amr.corp.intel.com (10.19.9.37) with Microsoft SMTP Server (TLS) id 14.3.123.3; Fri, 11 Jul 2014 12:04:22 -0700 Received: from shsmsx151.ccr.corp.intel.com (10.239.6.50) by FMSMSX113.amr.corp.intel.com (10.18.116.7) with Microsoft SMTP Server (TLS) id 14.3.123.3; Fri, 11 Jul 2014 12:04:21 -0700 Received: from shsmsx104.ccr.corp.intel.com ([169.254.5.122]) by SHSMSX151.ccr.corp.intel.com ([169.254.3.188]) with mapi id 14.03.0123.003; Sat, 12 Jul 2014 03:04:20 +0800 From: "Zhou, Danny" To: "John W. Linville" Thread-Topic: [dpdk-dev] [PATCH] librte_pmd_packet: add PMD for AF_PACKET-based virtual devices Thread-Index: AQHPnH/oRaQYxTj0SU2+uC1eGA1pJJubHZdggAAAcLD//4FWgIAAikNwgAARukA= Date: Fri, 11 Jul 2014 19:04:19 +0000 Message-ID: References: <1405024369-30058-1-git-send-email-linville@tuxdriver.com> <20140711174042.GE25478@tuxdriver.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 19:03:59 -0000 Does it support specifying multiple NIC interfaces using command line optio= n like "--vdev=3Deth_packet0,iface=3D..."? Say "iface=3Deth0,eth1,eth2...",= tried 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 >=20 > Tried on 3.12, both of them are undefined. Anyway, will comment them out = and see > what performance it could achieve. >=20 > > -----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 distributi= on 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 commen= t 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)#define > > 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.