From patchwork Wed Nov 22 09:48:58 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jie Hai X-Patchwork-Id: 134525 X-Patchwork-Delegate: ferruh.yigit@amd.com Return-Path: X-Original-To: patchwork@inbox.dpdk.org Delivered-To: patchwork@inbox.dpdk.org Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id 5D43A4339B; Wed, 22 Nov 2023 10:53:08 +0100 (CET) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 236D740A77; Wed, 22 Nov 2023 10:53:01 +0100 (CET) Received: from szxga08-in.huawei.com (szxga08-in.huawei.com [45.249.212.255]) by mails.dpdk.org (Postfix) with ESMTP id 9FA2D4028C for ; Wed, 22 Nov 2023 10:52:57 +0100 (CET) Received: from kwepemd100004.china.huawei.com (unknown [172.30.72.55]) by szxga08-in.huawei.com (SkyGuard) with ESMTP id 4SZxKf0rZTz1P8kn; Wed, 22 Nov 2023 17:49:26 +0800 (CST) Received: from localhost.localdomain (10.67.165.2) by kwepemd100004.china.huawei.com (7.221.188.31) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.2.1258.28; Wed, 22 Nov 2023 17:52:54 +0800 From: Jie Hai To: , Thomas Monjalon , Ferruh Yigit , Andrew Rybchenko CC: , , , Subject: [PATCH 1/2] ethdev: add new API to get RSS hash algorithm by name Date: Wed, 22 Nov 2023 17:48:58 +0800 Message-ID: <20231122094900.788126-2-haijie1@huawei.com> X-Mailer: git-send-email 2.30.0 In-Reply-To: <20231122094900.788126-1-haijie1@huawei.com> References: <20231122094900.788126-1-haijie1@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.67.165.2] X-ClientProxiedBy: dggems705-chm.china.huawei.com (10.3.19.182) To kwepemd100004.china.huawei.com (7.221.188.31) 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 This patch supports conversion from names to hash algorithms(see RTE_ETH_HASH_FUNCTION_XXX). Signed-off-by: Jie Hai Reviewed-by: Huisong Li --- doc/guides/rel_notes/release_23_11.rst | 3 +++ lib/ethdev/rte_ethdev.c | 15 +++++++++++++++ lib/ethdev/rte_ethdev.h | 20 ++++++++++++++++++++ lib/ethdev/version.map | 1 + 4 files changed, 39 insertions(+) diff --git a/doc/guides/rel_notes/release_23_11.rst b/doc/guides/rel_notes/release_23_11.rst index 520321c71e9c..b157fb9d307e 100644 --- a/doc/guides/rel_notes/release_23_11.rst +++ b/doc/guides/rel_notes/release_23_11.rst @@ -124,6 +124,9 @@ New Features * Added new function ``rte_eth_dev_rss_algo_name`` to get name of RSS hash algorithm. + * Added new function ``rte_eth_find_rss_algo`` + to get RSS hash algorithm by its name. + * **Added packet type flow matching criteria.** Added ``RTE_FLOW_ITEM_TYPE_PTYPE`` to allow matching on L2/L3/L4 diff --git a/lib/ethdev/rte_ethdev.c b/lib/ethdev/rte_ethdev.c index 3858983fcc80..c0398d945502 100644 --- a/lib/ethdev/rte_ethdev.c +++ b/lib/ethdev/rte_ethdev.c @@ -4826,6 +4826,21 @@ rte_eth_dev_rss_algo_name(enum rte_eth_hash_function rss_algo) return name; } +int +rte_eth_find_rss_algo(const char *name, uint32_t *algo) +{ + unsigned int i; + + for (i = 0; i < RTE_DIM(rte_eth_dev_rss_algo_names); i++) { + if (strcmp(name, rte_eth_dev_rss_algo_names[i].name) == 0) { + *algo = rte_eth_dev_rss_algo_names[i].algo; + return 0; + } + } + + return -EINVAL; +} + int rte_eth_dev_udp_tunnel_port_add(uint16_t port_id, struct rte_eth_udp_tunnel *udp_tunnel) diff --git a/lib/ethdev/rte_ethdev.h b/lib/ethdev/rte_ethdev.h index 77331ce6525e..3bde5c4c17a6 100644 --- a/lib/ethdev/rte_ethdev.h +++ b/lib/ethdev/rte_ethdev.h @@ -4667,6 +4667,26 @@ __rte_experimental const char * rte_eth_dev_rss_algo_name(enum rte_eth_hash_function rss_algo); +/** + * @warning + * @b EXPERIMENTAL: this API may change, or be removed, without prior notice. + * + * Get RSS hash algorithm by its name. + * + * @param name + * RSS hash algorithm. + * + * @param algo + * return the RSS hash algorithm found, @see rte_eth_hash_function. + * + * @return + * - (0) if successful. + * - (-EINVAL) if not found. + */ +__rte_experimental +int +rte_eth_find_rss_algo(const char *name, uint32_t *algo); + /** * Add UDP tunneling port for a type of tunnel. * diff --git a/lib/ethdev/version.map b/lib/ethdev/version.map index 5c4917c020dc..d585c12c0110 100644 --- a/lib/ethdev/version.map +++ b/lib/ethdev/version.map @@ -313,6 +313,7 @@ EXPERIMENTAL { # added in 23.11 rte_eth_dev_rss_algo_name; + rte_eth_find_rss_algo; rte_eth_recycle_rx_queue_info_get; rte_flow_group_set_miss_actions; rte_flow_calc_table_hash;