From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id 3492841F63; Wed, 30 Aug 2023 09:50:36 +0200 (CEST) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id B80B740279; Wed, 30 Aug 2023 09:50:35 +0200 (CEST) Received: from szxga03-in.huawei.com (szxga03-in.huawei.com [45.249.212.189]) by mails.dpdk.org (Postfix) with ESMTP id 0826440277 for ; Wed, 30 Aug 2023 09:50:33 +0200 (CEST) Received: from kwepemm600004.china.huawei.com (unknown [172.30.72.54]) by szxga03-in.huawei.com (SkyGuard) with ESMTP id 4RbGbV4S0HzLpBf; Wed, 30 Aug 2023 15:47:18 +0800 (CST) Received: from [10.67.121.59] (10.67.121.59) by kwepemm600004.china.huawei.com (7.193.23.242) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.31; Wed, 30 Aug 2023 15:50:30 +0800 Message-ID: <0926596b-7474-8821-55af-45699d5fc878@huawei.com> Date: Wed, 30 Aug 2023 15:50:30 +0800 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:91.0) Gecko/20100101 Thunderbird/91.2.0 Subject: Re: [PATCH v2 1/2] ethdev: add new symmetric hash function To: Xueming Li , Ori Kam CC: , , Ivan Malov References: <20230807115456.17478-1-xuemingl@nvidia.com> <20230827081745.31906-1-xuemingl@nvidia.com> From: "lihuisong (C)" In-Reply-To: <20230827081745.31906-1-xuemingl@nvidia.com> Content-Type: text/plain; charset="UTF-8"; format=flowed Content-Transfer-Encoding: 8bit X-Originating-IP: [10.67.121.59] X-ClientProxiedBy: dggems704-chm.china.huawei.com (10.3.19.181) To kwepemm600004.china.huawei.com (7.193.23.242) X-CFilter-Loop: Reflected X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Hi Xueming, 在 2023/8/27 16:17, Xueming Li 写道: > The new symmetric hash function swap src/dst L3 address and > L4 ports automatically by sorting. > > Signed-off-by: Xueming Li > --- > lib/ethdev/rte_flow.h | 7 +++++++ > 1 file changed, 7 insertions(+) > > diff --git a/lib/ethdev/rte_flow.h b/lib/ethdev/rte_flow.h > index 2ebb76dbc0..4f4421ca50 100644 > --- a/lib/ethdev/rte_flow.h > +++ b/lib/ethdev/rte_flow.h > @@ -3196,6 +3196,13 @@ enum rte_eth_hash_function { > * src or dst address will xor with zero pair. > */ > RTE_ETH_HASH_FUNCTION_SYMMETRIC_TOEPLITZ, > + /** > + * Symmetric Toeplitz: L3 and L4 fields are sorted prior to > + * the hash function. > + * If src_ip > dst_ip, swap src_ip and dst_ip. > + * If src_port > dst_port, swap src_port and dst_port. > + */ If hash result are computed by the order: "src_ip+dst_ip+src_port+dst_port" How to obtain the value of every L3 and L4 field obove? I still cannot understand how to swap and set these values for these fields? > + RTE_ETH_HASH_FUNCTION_SYMMETRIC_TOEPLITZ_SORT, > RTE_ETH_HASH_FUNCTION_MAX, > }; >