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Date: Wed, 7 Feb 2024 10:47:32 +0000
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Subject: Re: [PATCH v3] ethdev: fast path async flow API
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To: Thomas Monjalon <thomas@monjalon.net>,
 Dariusz Sosnowski <dsosnowski@nvidia.com>
Cc: Matan Azrad <matan@nvidia.com>,
 Viacheslav Ovsiienko <viacheslavo@nvidia.com>, Ori Kam <orika@nvidia.com>,
 Suanming Mou <suanmingm@nvidia.com>,
 Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>, dev@dpdk.org
References: <20240131093523.1553028-1-dsosnowski@nvidia.com>
 <13882742.RDIVbhacDa@thomas> <2b0c7fe0-5713-4416-987e-34da0dc4aaef@amd.com>
 <2956397.VdNmn5OnKV@thomas>
From: Ferruh Yigit <ferruh.yigit@amd.com>
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On 2/7/2024 9:27 AM, Thomas Monjalon wrote:
> 07/02/2024 01:57, Ferruh Yigit:
>> On 2/6/2024 10:21 PM, Thomas Monjalon wrote:
>>> 06/02/2024 18:36, Dariusz Sosnowski:
>>>> --- a/doc/guides/nics/build_and_test.rst
>>>> +++ b/doc/guides/nics/build_and_test.rst
>>>> +- ``RTE_FLOW_DEBUG`` (default **disabled**; enabled automatically on debug builds)
>>>> +
>>>> +  Build with debug code in asynchronous flow APIs.
>>>> +
>>>>  .. Note::
>>>>
>>>> -   The ethdev library use above options to wrap debug code to trace invalid parameters
>>>> +   The ethdev library uses above options to wrap debug code to trace invalid parameters
>>>>     on data path APIs, so performance downgrade is expected when enabling those options.
>>>> -   Each PMD can decide to reuse them to wrap their own debug code in the Rx/Tx path.
>>>> +   Each PMD can decide to reuse them to wrap their own debug code in the Rx/Tx path
>>>> +   and in asynchronous flow APIs implementation.
>>>
>>> Good
>>>
>>>> --- a/doc/guides/rel_notes/release_24_03.rst
>>>> +++ b/doc/guides/rel_notes/release_24_03.rst
>>>> +* ethdev: PMDs implementing asynchronous flow operations are required to provide relevant functions
>>>> +  implementation through ``rte_flow_fp_ops`` struct, instead of ``rte_flow_ops`` struct.
>>>> +  Pointer to device-dependent ``rte_flow_fp_ops`` should be provided to ``rte_eth_dev.flow_fp_ops``.
>>>
>>> That's a change only for the driver.
>>> If there is no change for the application, it should not appear in the release notes.
>>> BTW, API means Application Programming Interface :)
>>>
>>>> +  This change applies 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``
>>>> +
>>>> +* ethdev: Removed the following fields from ``rte_flow_ops`` struct:
>>>> +
>>>> +   * ``async_create``
>>>> +   * ``async_create_by_index``
>>>> +   * ``async_actions_update``
>>>> +   * ``async_destroy``
>>>> +   * ``push``
>>>> +   * ``pull``
>>>> +   * ``async_action_handle_create``
>>>> +   * ``async_action_handle_destroy``
>>>> +   * ``async_action_handle_update``
>>>> +   * ``async_action_handle_query``
>>>> +   * ``async_action_handle_query_update``
>>>> +   * ``async_action_list_handle_create``
>>>> +   * ``async_action_list_handle_destroy``
>>>> +   * ``async_action_list_handle_query_update``
>>>
>>> [...]
>>>> --- a/lib/ethdev/ethdev_driver.h
>>>> +++ b/lib/ethdev/ethdev_driver.h
>>>> @@ -71,6 +71,10 @@ struct rte_eth_dev {
>>>>  	struct rte_eth_dev_data *data;
>>>>  	void *process_private; /**< Pointer to per-process device data */
>>>>  	const struct eth_dev_ops *dev_ops; /**< Functions exported by PMD */
>>>> +	/**
>>>> +	 * Fast path flow API functions exported by PMD.
>>>> +	 */
>>>
>>> This comment may be on one single line.
>>>
>>>> +	const struct rte_flow_fp_ops *flow_fp_ops;
>>>>  	struct rte_device *device; /**< Backing device */
>>>>  	struct rte_intr_handle *intr_handle; /**< Device interrupt handle */
>>>
>>>> --- a/lib/ethdev/meson.build
>>>> +++ b/lib/ethdev/meson.build
>>>> +if get_option('buildtype').contains('debug')
>>>> +    cflags += ['-DRTE_FLOW_DEBUG']
>>>> +endif
>>>
>>> This looks OK.
>>>
>>> Acked-by: Thomas Monjalon <thomas@monjalon.net>
>>>
>>>
>>
>> Acked-by: Ferruh Yigit <ferruh.yigit@amd.com>
>>
>> Applied to dpdk-next-net/main, thanks.
> 
> Ferruh, I was expecting a new version.
> Did you address yourself the comments above?
> 
> 

No, I missed the comment, if it is simple I can apply in next-net, let
me sync with Dariusz.