From patchwork Fri Dec 1 08:52:53 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jie Hai X-Patchwork-Id: 134743 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 AACCD43419; Fri, 1 Dec 2023 09:56:50 +0100 (CET) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id F360442F11; Fri, 1 Dec 2023 09:56:41 +0100 (CET) Received: from szxga02-in.huawei.com (szxga02-in.huawei.com [45.249.212.188]) by mails.dpdk.org (Postfix) with ESMTP id CD7E242F02 for ; Fri, 1 Dec 2023 09:56:38 +0100 (CET) Received: from kwepemd100004.china.huawei.com (unknown [172.30.72.55]) by szxga02-in.huawei.com (SkyGuard) with ESMTP id 4ShRjc2G7HzWhxv; Fri, 1 Dec 2023 16:55:48 +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; Fri, 1 Dec 2023 16:56:34 +0800 From: Jie Hai To: , , , CC: , Subject: [PATCH v2 1/2] ethdev: add new API to get RSS hash algorithm by name Date: Fri, 1 Dec 2023 16:52:53 +0800 Message-ID: <20231201085254.1545584-2-haijie1@huawei.com> X-Mailer: git-send-email 2.30.0 In-Reply-To: <20231201085254.1545584-1-haijie1@huawei.com> References: <20231122094900.788126-1-haijie1@huawei.com> <20231201085254.1545584-1-haijie1@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.67.165.2] X-ClientProxiedBy: dggems701-chm.china.huawei.com (10.3.19.178) 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 algorithm (see RTE_ETH_HASH_FUNCTION_XXX). Signed-off-by: Jie Hai Reviewed-by: Huisong Li Reviewed-by: Ferruh Yigit --- doc/guides/rel_notes/release_24_03.rst | 5 +++++ lib/ethdev/rte_ethdev.c | 15 +++++++++++++++ lib/ethdev/rte_ethdev.h | 20 ++++++++++++++++++++ lib/ethdev/version.map | 3 +++ 4 files changed, 43 insertions(+) diff --git a/doc/guides/rel_notes/release_24_03.rst b/doc/guides/rel_notes/release_24_03.rst index e9c9717706a0..bd84875d4f17 100644 --- a/doc/guides/rel_notes/release_24_03.rst +++ b/doc/guides/rel_notes/release_24_03.rst @@ -55,6 +55,11 @@ New Features Also, make sure to start the actual text at the margin. ======================================================= +* **Improved support of RSS hash algorithm.** + + * Added new function ``rte_eth_find_rss_algo`` to get RSS hash + algorithm by its name. + Removed Items ------------- 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..a050baab0fe7 100644 --- a/lib/ethdev/version.map +++ b/lib/ethdev/version.map @@ -316,6 +316,9 @@ EXPERIMENTAL { rte_eth_recycle_rx_queue_info_get; rte_flow_group_set_miss_actions; rte_flow_calc_table_hash; + + # added in 24.03 + rte_eth_find_rss_algo; }; INTERNAL {