From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from dpdk.org (dpdk.org [92.243.14.124]) by inbox.dpdk.org (Postfix) with ESMTP id 12D5EA04B3; Mon, 16 Dec 2019 03:52:08 +0100 (CET) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 93B971C06B; Mon, 16 Dec 2019 03:50:02 +0100 (CET) Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) by dpdk.org (Postfix) with ESMTP id 716411C034 for ; Mon, 16 Dec 2019 03:49:49 +0100 (CET) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by orsmga102.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 15 Dec 2019 18:49:49 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.69,320,1571727600"; d="scan'208";a="266134745" Received: from dpdk_yexl_af_xdp.sh.intel.com ([10.67.119.186]) by FMSMGA003.fm.intel.com with ESMTP; 15 Dec 2019 18:49:47 -0800 From: Xiaolong Ye To: Beilei Xing , Qi Zhang Cc: dev@dpdk.org, paul.m.stillwell.jr@intel.com, Xiaolong Ye , Doug Dziggel , Dariusz Chaberski Date: Mon, 16 Dec 2019 10:43:18 +0800 Message-Id: <20191216024336.174318-19-xiaolong.ye@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20191216024336.174318-1-xiaolong.ye@intel.com> References: <20191202074935.97629-1-xiaolong.ye@intel.com> <20191216024336.174318-1-xiaolong.ye@intel.com> Subject: [dpdk-dev] [PATCH v3 18/36] net/i40e/base: change of the incorrect Tx descriptors number X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" The existing driver allows setting the number of TX descriptors to the value that is indivisible by 32. This is not properly supported by x710 hardware. The patch limits the number of TX descriptors to the whole value of 32. Signed-off-by: Doug Dziggel Signed-off-by: Dariusz Chaberski Signed-off-by: Xiaolong Ye --- drivers/net/i40e/base/i40e_type.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/i40e/base/i40e_type.h b/drivers/net/i40e/base/i40e_type.h index 8d257e00a..f0e4b667a 100644 --- a/drivers/net/i40e/base/i40e_type.h +++ b/drivers/net/i40e/base/i40e_type.h @@ -79,8 +79,8 @@ typedef void (*I40E_ADMINQ_CALLBACK)(struct i40e_hw *, struct i40e_aq_desc *); #define I40E_HI_BYTE(x) ((u8)(((x) >> 8) & 0xFF)) #define I40E_LO_BYTE(x) ((u8)((x) & 0xFF)) -/* Number of Transmit Descriptors must be a multiple of 8. */ -#define I40E_REQ_TX_DESCRIPTOR_MULTIPLE 8 +/* Number of Transmit Descriptors must be a multiple of 32. */ +#define I40E_REQ_TX_DESCRIPTOR_MULTIPLE 32 /* Number of Receive Descriptors must be a multiple of 32 if * the number of descriptors is greater than 32. */ -- 2.17.1