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 1F758A04C5; Sat, 5 Sep 2020 11:10:17 +0200 (CEST) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 1AFA71C0BF; Sat, 5 Sep 2020 11:10:10 +0200 (CEST) Received: from huawei.com (szxga07-in.huawei.com [45.249.212.35]) by dpdk.org (Postfix) with ESMTP id 68ADA1B952 for ; Sat, 5 Sep 2020 11:10:05 +0200 (CEST) Received: from DGGEMS410-HUB.china.huawei.com (unknown [172.30.72.60]) by Forcepoint Email with ESMTP id 5659395F481AADD71344; Sat, 5 Sep 2020 17:10:00 +0800 (CST) Received: from localhost.localdomain (10.69.192.56) by DGGEMS410-HUB.china.huawei.com (10.3.19.210) with Microsoft SMTP Server id 14.3.487.0; Sat, 5 Sep 2020 17:09:49 +0800 From: Chengchang Tang To: CC: , , , , , Date: Sat, 5 Sep 2020 17:07:29 +0800 Message-ID: <1599296854-56620-1-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 v4 0/5] 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 List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" 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. v4: - remove deprecation notice once changes applied Chengchang Tang (5): ethdev: add a field for rxq info structure app/testpmd: add Rx buffer size display in queue info query app/procinfo: add Rx buffer size to --show-port net/hns3: add Rx buffer size to Rx qinfo query doc: remove rxq info structure deprecation notice app/proc-info/main.c | 2 ++ app/test-pmd/config.c | 1 + doc/guides/rel_notes/deprecation.rst | 5 ----- drivers/net/hns3/hns3_rxtx.c | 2 ++ lib/librte_ethdev/rte_ethdev.h | 2 ++ 5 files changed, 7 insertions(+), 5 deletions(-) -- 2.7.4