From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) by dpdk.org (Postfix) with ESMTP id 430FB5A53 for ; Fri, 30 Oct 2015 07:25:33 +0100 (CET) Received: from orsmga003.jf.intel.com ([10.7.209.27]) by orsmga102.jf.intel.com with ESMTP; 29 Oct 2015 23:25:31 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.20,217,1444719600"; d="scan'208";a="674856030" Received: from fmsmsx107.amr.corp.intel.com ([10.18.124.205]) by orsmga003.jf.intel.com with ESMTP; 29 Oct 2015 23:25:32 -0700 Received: from fmsmsx113.amr.corp.intel.com (10.18.116.7) by fmsmsx107.amr.corp.intel.com (10.18.124.205) with Microsoft SMTP Server (TLS) id 14.3.248.2; Thu, 29 Oct 2015 23:25:31 -0700 Received: from shsmsx102.ccr.corp.intel.com (10.239.4.154) by FMSMSX113.amr.corp.intel.com (10.18.116.7) with Microsoft SMTP Server (TLS) id 14.3.248.2; Thu, 29 Oct 2015 23:25:30 -0700 Received: from shsmsx104.ccr.corp.intel.com ([169.254.5.194]) by shsmsx102.ccr.corp.intel.com ([169.254.2.253]) with mapi id 14.03.0248.002; Fri, 30 Oct 2015 14:24:49 +0800 From: "Zhang, Helin" To: "Wu, Jingjing" , "dev@dpdk.org" Thread-Topic: [PATCH v2] i40e: fix the write back issue in FVL VF Thread-Index: AQHRC6a3Gc3A/1Rhm0WjbiYl5vi4m56Dn+iQ Date: Fri, 30 Oct 2015 06:24:49 +0000 Message-ID: References: <1444378608-708-1-git-send-email-jingjing.wu@intel.com> <1445393871-21775-1-git-send-email-jingjing.wu@intel.com> In-Reply-To: <1445393871-21775-1-git-send-email-jingjing.wu@intel.com> Accept-Language: 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 Subject: Re: [dpdk-dev] [PATCH v2] i40e: fix the write back issue in FVL VF 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, 30 Oct 2015 06:25:33 -0000 > -----Original Message----- > From: Wu, Jingjing > Sent: Wednesday, October 21, 2015 10:18 AM > To: dev@dpdk.org > Cc: Wu, Jingjing; Zhang, Helin; Pei, Yulong > Subject: [PATCH v2] i40e: fix the write back issue in FVL VF >=20 > If DPDK is used on VF while the host is using Linux Kernel driver as PF d= river on > FVL NIC, then VF Rx is reported only in batches of > 4 packets. It is due to the kernel driver assumes VF driver is working in= interrupt > mode, but DPDK VF is working in Polling mode. > This patch fixes this issue by using the V1.1 virtual channel with Linux = i40e PF > driver. >=20 > Signed-off-by: Jingjing Wu Acked-by: Helin Zhang