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 BB614A04A5; Thu, 18 Jun 2020 15:59:02 +0200 (CEST) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 0ACDC1BF54; Thu, 18 Jun 2020 15:59:02 +0200 (CEST) Received: from huawei.com (szxga06-in.huawei.com [45.249.212.32]) by dpdk.org (Postfix) with ESMTP id BBA474CA7 for ; Thu, 18 Jun 2020 14:36:48 +0200 (CEST) Received: from DGGEMS406-HUB.china.huawei.com (unknown [172.30.72.60]) by Forcepoint Email with ESMTP id 3B6CD669CE9ADF8CD26C; Thu, 18 Jun 2020 20:36:47 +0800 (CST) Received: from localhost.localdomain (10.69.192.56) by DGGEMS406-HUB.china.huawei.com (10.3.19.206) with Microsoft SMTP Server id 14.3.487.0; Thu, 18 Jun 2020 20:36:37 +0800 From: Chengchang Tang To: CC: , , , Date: Thu, 18 Jun 2020 20:35:09 +0800 Message-ID: <1592483709-7076-1-git-send-email-tangchengchang@huawei.com> X-Mailer: git-send-email 2.7.4 MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.69.192.56] X-CFilter-Loop: Reflected X-Mailman-Approved-At: Thu, 18 Jun 2020 15:59:00 +0200 Subject: [dpdk-dev] [RFC] ethdev: add a field 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_buf_size 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. At present, we seem to have no way to espose relevant information to upper layer users. Add a field named rx_bufsize in rte_eth_rxq_info to indicate the buffer size used in recieving pkts for hw. Signed-off-by: Chengchang Tang --- lib/librte_ethdev/rte_ethdev.h | 1 + 1 file changed, 1 insertion(+) diff --git a/lib/librte_ethdev/rte_ethdev.h b/lib/librte_ethdev/rte_ethdev.h index 0f6d053..82b7e98 100644 --- a/lib/librte_ethdev/rte_ethdev.h +++ b/lib/librte_ethdev/rte_ethdev.h @@ -1306,6 +1306,7 @@ struct rte_eth_rxq_info { struct rte_eth_rxconf conf; /**< queue config parameters. */ uint8_t scattered_rx; /**< scattered packets RX supported. */ uint16_t nb_desc; /**< configured number of RXDs. */ + uint16_t rx_bufsize; /**< size of RX buffer. */ } __rte_cache_min_aligned; /** -- 2.7.4