[dpdk-dev] [PATCH] ethdev: fix applications failure on configure

[Ferruh Yigit]

On 5/1/2018 3:12 PM, Thomas Monjalon wrote:
> 01/05/2018 16:08, Ferruh Yigit:
>> On 5/1/2018 3:01 PM, Thomas Monjalon wrote:
>>> 01/05/2018 15:33, Ferruh Yigit:
>>>> Many sample applications fail because of
>>>> dev_info.flow_type_rss_offloads check in rte_eth_dev_configure()
>>>
>>> We need to define the API behaviour in doxygen.
>>>
>>>> The sample applications need to be fixed/updated before returning error
>>>> on rte_eth_dev_configure()
>>>>
>>>> This patch keeps the error log but removes returning error.
>>>
>>> If the doc is updated in 18.05, we can have a deprecation notice
>>> to insert the error return in 18.08.
>>
>> +1 to add a deprecation notice for this release and do the error return on 18.08.
>>
>> Is the doc update you mentioned doxygen update?
> 
> Yes, doxygen update.
> 
>> Who can do doc update and deprecation notice patches for this release?
> 
> Either you Ferruh, or Xueming and me together.
> What do you prefer?

Or as Xueming suggested, we can take rss_hf config as best effort and not return
error at all.

I think this forces PMDs to have up-to-date flow_type_rss_offloads values, is
there any other benefit?
What was the initial motivation to add error return on this check?

> 
>>>> Fixes: 8863a1fbfc66 ("ethdev: add supported hash function check")
>>>> Cc: xuemingl at mellanox.com
>>>>
>>>> Signed-off-by: Ferruh Yigit <ferruh.yigit at intel.com>
> 
> 
>