From patchwork Tue Dec 2 09:02:05 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Huawei Xie X-Patchwork-Id: 1723 Return-Path: X-Original-To: patchwork@dpdk.org Delivered-To: patchwork@dpdk.org Received: from [92.243.14.124] (localhost [IPv6:::1]) by dpdk.org (Postfix) with ESMTP id 02FAE7F8C; Tue, 2 Dec 2014 10:02:21 +0100 (CET) Received: from mga14.intel.com (mga14.intel.com [192.55.52.115]) by dpdk.org (Postfix) with ESMTP id DEB977F6D for ; Tue, 2 Dec 2014 10:02:18 +0100 (CET) Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by fmsmga103.fm.intel.com with ESMTP; 02 Dec 2014 00:54:54 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.97,862,1389772800"; d="scan'208";a="423927549" Received: from shvmail01.sh.intel.com ([10.239.29.42]) by FMSMGA003.fm.intel.com with ESMTP; 02 Dec 2014 00:52:04 -0800 Received: from shecgisg003.sh.intel.com (shecgisg003.sh.intel.com [10.239.29.90]) by shvmail01.sh.intel.com with ESMTP id sB292D8c029967; Tue, 2 Dec 2014 17:02:13 +0800 Received: from shecgisg003.sh.intel.com (localhost [127.0.0.1]) by shecgisg003.sh.intel.com (8.13.6/8.13.6/SuSE Linux 0.8) with ESMTP id sB292BgT009622; Tue, 2 Dec 2014 17:02:13 +0800 Received: (from hxie5@localhost) by shecgisg003.sh.intel.com (8.13.6/8.13.6/Submit) id sB292BQD009618; Tue, 2 Dec 2014 17:02:11 +0800 From: Huawei Xie To: dev@dpdk.org Date: Tue, 2 Dec 2014 17:02:05 +0800 Message-Id: <1417510926-9580-2-git-send-email-huawei.xie@intel.com> X-Mailer: git-send-email 1.7.4.1 In-Reply-To: <1417510926-9580-1-git-send-email-huawei.xie@intel.com> References: <1417510926-9580-1-git-send-email-huawei.xie@intel.com> Subject: [dpdk-dev] [PATCH v4 1/2] lib/librte_pmd_i40e: set vlan id filter fix 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: , Errors-To: dev-bounces@dpdk.org Sender: "dev" ">> 5" rather than ">> 4" vlan id is a 12 bit value. VFTA is 128 x 32 bit array (128 double word array) which could store 2^12 vlan bits. Each bit represents whether corresponding vlan tag is set in the VSI. Use high 7 bits as the index for the double word array. Signed-off-by: Huawei Xie --- lib/librte_pmd_i40e/i40e_ethdev.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) diff --git a/lib/librte_pmd_i40e/i40e_ethdev.c b/lib/librte_pmd_i40e/i40e_ethdev.c index dacf2db..518597f 100644 --- a/lib/librte_pmd_i40e/i40e_ethdev.c +++ b/lib/librte_pmd_i40e/i40e_ethdev.c @@ -4172,14 +4172,11 @@ i40e_set_vlan_filter(struct i40e_vsi *vsi, { uint32_t vid_idx, vid_bit; -#define UINT32_BIT_MASK 0x1F -#define VALID_VLAN_BIT_MASK 0xFFF /* VFTA is 32-bits size array, each element contains 32 vlan bits, Find the * element first, then find the bits it belongs to */ - vid_idx = (uint32_t) ((vlan_id & VALID_VLAN_BIT_MASK) >> - sizeof(uint32_t)); - vid_bit = (uint32_t) (1 << (vlan_id & UINT32_BIT_MASK)); + vid_idx = (uint32_t) ((vlan_id >> 5) & 0x7F); + vid_bit = (uint32_t) (1 << (vlan_id & 0x1F)); if (on) vsi->vfta[vid_idx] |= vid_bit;