From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by dpdk.org (Postfix) with ESMTP id D902D7F6D for ; Tue, 2 Dec 2014 10:02:20 +0100 (CET) Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga101.fm.intel.com with ESMTP; 02 Dec 2014 01:02:19 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.07,499,1413270000"; d="scan'208";a="631234878" Received: from shvmail01.sh.intel.com ([10.239.29.42]) by fmsmga001.fm.intel.com with ESMTP; 02 Dec 2014 01:02:18 -0800 Received: from shecgisg003.sh.intel.com (shecgisg003.sh.intel.com [10.239.29.90]) by shvmail01.sh.intel.com with ESMTP id sB292Hrf032581; Tue, 2 Dec 2014 17:02:17 +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 sB292EaQ009629; Tue, 2 Dec 2014 17:02:16 +0800 Received: (from hxie5@localhost) by shecgisg003.sh.intel.com (8.13.6/8.13.6/Submit) id sB292EVn009625; Tue, 2 Dec 2014 17:02:14 +0800 From: Huawei Xie To: dev@dpdk.org Date: Tue, 2 Dec 2014 17:02:06 +0800 Message-Id: <1417510926-9580-3-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 2/2] lib/librte_pmd_i40e: add I40E_VFTA_IDX and I40E_VFTA__BIT macros for VFTA related operation 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: Tue, 02 Dec 2014 09:02:22 -0000 Add two macros I40E_VFTA_IDX and I40E_VFTA_BIT for vlan filter search and set. Add vlan_id check in vlan filter search and set function. Signed-off-by: Huawei Xie --- lib/librte_pmd_i40e/i40e_ethdev.c | 17 ++++++++++------- lib/librte_pmd_i40e/i40e_ethdev.h | 9 +++++++++ 2 files changed, 19 insertions(+), 7 deletions(-) diff --git a/lib/librte_pmd_i40e/i40e_ethdev.c b/lib/librte_pmd_i40e/i40e_ethdev.c index 518597f..43b9448 100644 --- a/lib/librte_pmd_i40e/i40e_ethdev.c +++ b/lib/librte_pmd_i40e/i40e_ethdev.c @@ -4157,8 +4157,11 @@ i40e_find_vlan_filter(struct i40e_vsi *vsi, { uint32_t vid_idx, vid_bit; - vid_idx = (uint32_t) ((vlan_id >> 5) & 0x7F); - vid_bit = (uint32_t) (1 << (vlan_id & 0x1F)); + if (vlan_id > ETH_VLAN_ID_MAX) + return 0; + + vid_idx = I40E_VFTA_IDX(vlan_id); + vid_bit = I40E_VFTA_BIT(vlan_id); if (vsi->vfta[vid_idx] & vid_bit) return 1; @@ -4172,11 +4175,11 @@ i40e_set_vlan_filter(struct i40e_vsi *vsi, { uint32_t vid_idx, vid_bit; - /* 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 >> 5) & 0x7F); - vid_bit = (uint32_t) (1 << (vlan_id & 0x1F)); + if (vlan_id > ETH_VLAN_ID_MAX) + return; + + vid_idx = I40E_VFTA_IDX(vlan_id); + vid_bit = I40E_VFTA_BIT(vlan_id); if (on) vsi->vfta[vid_idx] |= vid_bit; diff --git a/lib/librte_pmd_i40e/i40e_ethdev.h b/lib/librte_pmd_i40e/i40e_ethdev.h index f99fbea..f913ea9 100644 --- a/lib/librte_pmd_i40e/i40e_ethdev.h +++ b/lib/librte_pmd_i40e/i40e_ethdev.h @@ -50,6 +50,15 @@ #define I40E_DEFAULT_QP_NUM_FDIR 1 #define I40E_UINT32_BIT_SIZE (CHAR_BIT * sizeof(uint32_t)) #define I40E_VFTA_SIZE (4096 / I40E_UINT32_BIT_SIZE) +/* + * vlan_id is a 12 bit number. + * The VFTA array is actually a 4096 bit array, 128 of 32bit elements. + * 2^5 = 32. The val of lower 5 bits specifies the bit in the 32bit element. + * The higher 7 bit val specifies VFTA array index. + */ +#define I40E_VFTA_BIT(vlan_id) (1 << ((vlan_id) & 0x1F)) +#define I40E_VFTA_IDX(vlan_id) ((vlan_id) >> 5) + /* Default TC traffic in case DCB is not enabled */ #define I40E_DEFAULT_TCMAP 0x1 #define I40E_FDIR_QUEUE_ID 0 -- 1.8.1.4