From patchwork Wed Jul 22 06:38:07 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chengchang Tang X-Patchwork-Id: 74601 Return-Path: X-Original-To: patchwork@inbox.dpdk.org Delivered-To: patchwork@inbox.dpdk.org Received: from dpdk.org (dpdk.org [92.243.14.124]) by inbox.dpdk.org (Postfix) with ESMTP id 43AAFA0526; Wed, 22 Jul 2020 08:40:23 +0200 (CEST) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 927321C00D; Wed, 22 Jul 2020 08:40:16 +0200 (CEST) Received: from huawei.com (szxga06-in.huawei.com [45.249.212.32]) by dpdk.org (Postfix) with ESMTP id E33931BFF9 for ; Wed, 22 Jul 2020 08:40:12 +0200 (CEST) Received: from DGGEMS404-HUB.china.huawei.com (unknown [172.30.72.58]) by Forcepoint Email with ESMTP id C9C25BBC435C244063FA; Wed, 22 Jul 2020 14:40:08 +0800 (CST) Received: from localhost.localdomain (10.69.192.56) by DGGEMS404-HUB.china.huawei.com (10.3.19.204) with Microsoft SMTP Server id 14.3.487.0; Wed, 22 Jul 2020 14:39:57 +0800 From: Chengchang Tang To: CC: , , , Date: Wed, 22 Jul 2020 14:38:07 +0800 Message-ID: <1595399890-27300-1-git-send-email-tangchengchang@huawei.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1592894934-57856-1-git-send-email-tangchengchang@huawei.com> References: <1592894934-57856-1-git-send-email-tangchengchang@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.69.192.56] X-CFilter-Loop: Reflected Subject: [dpdk-dev] [RFC v2 0/3] add rx buffer size for rte_eth_rxq_info 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 packts 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 recieving pkts 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 seem to 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 recieving pkts for hw. And this patchset also add hns3 PMD implementation and update the testpmd to clarify intention. v2: Add hns3 implementation and update testpmd. Chengchang Tang (2): ethdev: add a field for rte_eth_rxq_info app/testpmd: Add RX buffer size dispaly in queue info querry Huisong Li (1): net/hns3: add support for query of rx/tx queue info app/test-pmd/config.c | 1 + drivers/net/hns3/hns3_ethdev.c | 2 ++ drivers/net/hns3/hns3_ethdev_vf.c | 2 ++ drivers/net/hns3/hns3_rxtx.c | 48 +++++++++++++++++++++++++++++++++++++++ drivers/net/hns3/hns3_rxtx.h | 4 ++++ lib/librte_ethdev/rte_ethdev.h | 2 ++ 6 files changed, 59 insertions(+) --- 2.7.4