From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id C555EC33CA9 for ; Mon, 13 Jan 2020 02:49:48 +0000 (UTC) Received: from dpdk.org (dpdk.org [92.243.14.124]) by mail.kernel.org (Postfix) with ESMTP id 8A64E206DA for ; Mon, 13 Jan 2020 02:49:48 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 8A64E206DA Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=dev-bounces@dpdk.org Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 7334E1D5F5; Mon, 13 Jan 2020 03:47:51 +0100 (CET) Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by dpdk.org (Postfix) with ESMTP id DD3831D593 for ; Mon, 13 Jan 2020 03:47:24 +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 fmsmga101.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 12 Jan 2020 18:47:24 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.69,427,1571727600"; d="scan'208";a="272916369" Received: from dpdk_yexl_af_xdp.sh.intel.com ([10.67.119.206]) by FMSMGA003.fm.intel.com with ESMTP; 12 Jan 2020 18:47:23 -0800 From: Xiaolong Ye To: Beilei Xing , Qi Zhang Cc: dev@dpdk.org, Xiaolong Ye , Doug Dziggel , Dariusz Chaberski Date: Mon, 13 Jan 2020 10:39:30 +0800 Message-Id: <20200113023949.26718-19-xiaolong.ye@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200113023949.26718-1-xiaolong.ye@intel.com> References: <20191202074935.97629-1-xiaolong.ye@intel.com> <20200113023949.26718-1-xiaolong.ye@intel.com> Subject: [dpdk-dev] [PATCH v4 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