From: Ori Kam <orika@nvidia.com>
To: Dariusz Sosnowski <dsosnowski@nvidia.com>,
Slava Ovsiienko <viacheslavo@nvidia.com>,
Suanming Mou <suanmingm@nvidia.com>,
Matan Azrad <matan@nvidia.com>,
"NBU-Contact-Thomas Monjalon (EXTERNAL)" <thomas@monjalon.net>,
Ferruh Yigit <ferruh.yigit@amd.com>,
Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
Cc: "dev@dpdk.org" <dev@dpdk.org>
Subject: RE: [PATCH v2] ethdev: fast path async flow API
Date: Wed, 31 Jan 2024 13:20:08 +0000 [thread overview]
Message-ID: <MW2PR12MB4666278E71865CEC97B1940DD67C2@MW2PR12MB4666.namprd12.prod.outlook.com> (raw)
In-Reply-To: <20240131093523.1553028-1-dsosnowski@nvidia.com>
Hi Draiusz,
> -----Original Message-----
> From: Dariusz Sosnowski <dsosnowski@nvidia.com>
> Sent: Wednesday, January 31, 2024 11:35 AM
>
> This patch reworks the async flow API functions called in data path,
> to reduce the overhead during flow operations at the library level.
> Main source of the overhead was indirection and checks done while
> ethdev library was fetching rte_flow_ops from a given driver.
>
> This patch introduces rte_flow_fp_ops struct which holds callbacks
> to driver's implementation of fast path async flow API functions.
> Each driver implementing these functions must populate flow_fp_ops
> field inside rte_eth_dev structure with a reference to
> its own implementation.
> By default, ethdev library provides dummy callbacks with
> implementations returning ENOSYS.
> Such design provides a few assumptions:
>
> - rte_flow_fp_ops struct for given port is always available.
> - Each callback is either:
> - Default provided by library.
> - Set up by driver.
>
> As a result, no checks for availability of the implementation
> are needed at library level in data path.
> Any library-level validation checks in async flow API are compiled
> if and only if RTE_FLOW_DEBUG macro is defined.
>
> These changes apply only to the following API functions:
>
> - rte_flow_async_create()
> - rte_flow_async_create_by_index()
> - rte_flow_async_actions_update()
> - rte_flow_async_destroy()
> - rte_flow_push()
> - rte_flow_pull()
> - rte_flow_async_action_handle_create()
> - rte_flow_async_action_handle_destroy()
> - rte_flow_async_action_handle_update()
> - rte_flow_async_action_handle_query()
> - rte_flow_async_action_handle_query_update()
> - rte_flow_async_action_list_handle_create()
> - rte_flow_async_action_list_handle_destroy()
> - rte_flow_async_action_list_handle_query_update()
>
> This patch also adjusts the mlx5 PMD to the introduced flow API changes.
>
> Signed-off-by: Dariusz Sosnowski <dsosnowski@nvidia.com>
> ---
> v2:
> - Fixed mlx5 PMD build issue with older versions of rdma-core.
> ---
Acked-by: Ori Kam <orika@nvidia.com>
Best,
Ori
next prev parent reply other threads:[~2024-01-31 13:20 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-01-30 18:17 [PATCH] " Dariusz Sosnowski
2024-01-31 9:35 ` [PATCH v2] " Dariusz Sosnowski
2024-01-31 13:20 ` Ori Kam [this message]
2024-02-05 11:07 ` Thomas Monjalon
2024-02-05 13:14 ` Dariusz Sosnowski
2024-02-05 14:03 ` Thomas Monjalon
2024-02-06 17:50 ` Dariusz Sosnowski
2024-02-06 17:36 ` [PATCH v3] " Dariusz Sosnowski
2024-02-06 22:21 ` Thomas Monjalon
2024-02-07 0:57 ` Ferruh Yigit
2024-02-07 9:27 ` Thomas Monjalon
2024-02-07 10:47 ` Ferruh Yigit
2024-02-07 10:56 ` Ferruh Yigit
2024-02-07 11:54 ` Ferruh Yigit
2024-02-07 12:06 ` Dariusz Sosnowski
2024-02-07 13:31 ` Thomas Monjalon
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