From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: <dev-bounces@dpdk.org> Received: from dpdk.org (dpdk.org [92.243.14.124]) by inbox.dpdk.org (Postfix) with ESMTP id 3312CA04CC; Mon, 21 Sep 2020 15:25:18 +0200 (CEST) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 2EA841D95B; Mon, 21 Sep 2020 15:25:17 +0200 (CEST) Received: from huawei.com (szxga07-in.huawei.com [45.249.212.35]) by dpdk.org (Postfix) with ESMTP id 517F31D90F for <dev@dpdk.org>; Mon, 21 Sep 2020 15:25:14 +0200 (CEST) Received: from DGGEMS405-HUB.china.huawei.com (unknown [172.30.72.60]) by Forcepoint Email with ESMTP id 8E9C8FE69B10D0B08334; Mon, 21 Sep 2020 21:25:12 +0800 (CST) Received: from localhost.localdomain (10.69.192.56) by DGGEMS405-HUB.china.huawei.com (10.3.19.205) with Microsoft SMTP Server id 14.3.487.0; Mon, 21 Sep 2020 21:25:04 +0800 From: Chengchang Tang <tangchengchang@huawei.com> To: <dev@dpdk.org> CC: <linuxarm@huawei.com>, <thomas@monjalon.net>, <arybchenko@solarflare.com>, <ferruh.yigit@intel.com>, <wenzhuo.lu@intel.com>, <maryam.tahhan@intel.com> Date: Mon, 21 Sep 2020 21:22:36 +0800 Message-ID: <1600694558-19120-1-git-send-email-tangchengchang@huawei.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1592483709-7076-1-git-send-email-tangchengchang@huawei.com> References: <1592483709-7076-1-git-send-email-tangchengchang@huawei.com> MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.69.192.56] X-CFilter-Loop: Reflected Subject: [dpdk-dev] [PATCH v5 0/2] add Rx buffer size for rxq info structure X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions <dev.dpdk.org> List-Unsubscribe: <https://mails.dpdk.org/options/dev>, <mailto:dev-request@dpdk.org?subject=unsubscribe> List-Archive: <http://mails.dpdk.org/archives/dev/> List-Post: <mailto:dev@dpdk.org> List-Help: <mailto:dev-request@dpdk.org?subject=help> List-Subscribe: <https://mails.dpdk.org/listinfo/dev>, <mailto:dev-request@dpdk.org?subject=subscribe> Errors-To: dev-bounces@dpdk.org Sender: "dev" <dev-bounces@dpdk.org> In common practice, PMD configure the Rx buffer size which indicate the buffer length could be used for HW in receiving packets according to the data room size of the object in mempool. But in fact, the final value is related to the specifications of HW, and its values will affect the number of fragments in receiving packets when scatter is enabled. By the way, some PMDs may force to enable scatter when the MTU is bigger than the HW Rx buffer size. At present, we have no way to expose relevant information to upper layer users. So, add a field named rx_buf_size in rte_eth_rxq_info to indicate the buffer size used in receiving packets for HW. And this field is optional, so there is no need to forcibly update all PMDs. This patchset also update testpmd, proc-info tools and add hns3 PMD implementation. v5: - squash oneline app patches and deprecation remove with ethdev patch Chengchang Tang (2): ethdev: add a field for rxq info structure net/hns3: add Rx buffer size to Rx qinfo query app/proc-info/main.c | 13 +++++++++---- app/test-pmd/config.c | 2 ++ doc/guides/rel_notes/deprecation.rst | 5 ----- drivers/net/hns3/hns3_rxtx.c | 2 ++ lib/librte_ethdev/rte_ethdev.h | 1 + 5 files changed, 14 insertions(+), 9 deletions(-) -- 2.7.4