[PATCH] doc: update documentation for ICE DCB and PFC features

[Medvedkin, Vladimir]

Hi Bruce, thanks for reviewing, will send v2 addressing your comments

On 11/3/2025 3:10 PM, Bruce Richardson wrote:
> On Mon, Nov 03, 2025 at 03:02:37PM +0000, Vladimir Medvedkin wrote:
>> Add DCB and PFC documentation. Update feature matrix
>> and release notes.
>>
>> Signed-off-by: Vladimir Medvedkin <vladimir.medvedkin at intel.com>
>> ---
>>   doc/guides/nics/features/ice.ini       |  1 +
>>   doc/guides/nics/ice.rst                | 74 ++++++++++++++++++++++++++
>>   doc/guides/rel_notes/release_25_11.rst |  4 ++
>>   3 files changed, 79 insertions(+)
>>
> I should have noticed that this was all missing from the original patchset
> and flagged it before merge! Sorry.
>
> Anyway, thanks for doing this now - better late than never, as the saying
> goes! Review comments inline below.
>
> Thanks,
> /Bruce
>
<snip>
>> +
>> +PFC operates in VLAN-based mode and requires DCB to be configured first.
>> +
> So this means you need to call APIs in a specific order?

Yes, first we need to enable DCB with rte_eth_dev_configure(), then PFC 
can be configured on each individual TC. Generally speaking, PFC is a 
part of DCB standard so it should be obvious to configure DCB first.

>
<snip>
>> -- 
>> 2.43.0
>>
-- 
Regards,
Vladimir