From: Jie Hai <haijie1@huawei.com>
To: <thomas@monjalon.net>, <ferruh.yigit@amd.com>, <dev@dpdk.org>,
<andrew.rybchenko@oktetlabs.ru>
Cc: <fengchengwen@huawei.com>, <lihuisong@huawei.com>
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 [thread overview]
Message-ID: <20231201085254.1545584-2-haijie1@huawei.com> (raw)
In-Reply-To: <20231201085254.1545584-1-haijie1@huawei.com>
This patch supports conversion from names to hash algorithm
(see RTE_ETH_HASH_FUNCTION_XXX).
Signed-off-by: Jie Hai <haijie1@huawei.com>
Reviewed-by: Huisong Li <lihuisong@huawei.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@amd.com>
---
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 {
--
2.30.0
next prev parent reply other threads:[~2023-12-01 8:56 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-11-22 9:48 [PATCH 0/2] app/testpmd: support set RSS hash algorithm Jie Hai
2023-11-22 9:48 ` [PATCH 1/2] ethdev: add new API to get RSS hash algorithm by name Jie Hai
2023-11-22 9:48 ` [PATCH 2/2] app/testpmd: support set RSS hash algorithm Jie Hai
2023-11-22 10:46 ` [PATCH 0/2] " Ferruh Yigit
2023-11-23 6:32 ` Jie Hai
2023-11-30 9:02 ` Ferruh Yigit
2023-11-30 10:01 ` Jie Hai
2023-11-30 10:44 ` [RESEND " Jie Hai
2023-11-30 10:44 ` [RESEND 1/2] ethdev: add new API to get RSS hash algorithm by name Jie Hai
2023-11-30 11:23 ` Ferruh Yigit
2023-11-30 10:44 ` [RESEND 2/2] app/testpmd: support set RSS hash algorithm Jie Hai
2023-11-30 11:37 ` Ferruh Yigit
2023-11-30 11:38 ` Ferruh Yigit
2023-12-01 8:52 ` [PATCH v2 0/2] " Jie Hai
2023-12-01 8:52 ` Jie Hai [this message]
2023-12-01 8:52 ` [PATCH v2 2/2] " Jie Hai
2023-12-01 11:26 ` Ferruh Yigit
2023-12-04 13:57 ` [PATCH v2 0/2] " Ferruh Yigit
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