netdev - Re: [PATCH net-next v2] docs: net: document guidance of implementing the SR-IOV NDOs

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Message-ID: <7dc51532-55b1-4f10-af8f-bf8a703e1874@infradead.org>
Date: Wed, 19 Jun 2024 17:48:42 -0700
From: Randy Dunlap <rdunlap@...radead.org>
To: Jakub Kicinski <kuba@...nel.org>, davem@...emloft.net
Cc: netdev@...r.kernel.org, edumazet@...gle.com, pabeni@...hat.com,
 corbet@....net, linux-doc@...r.kernel.org
Subject: Re: [PATCH net-next v2] docs: net: document guidance of implementing
 the SR-IOV NDOs



On 6/19/24 5:27 PM, Jakub Kicinski wrote:
> New drivers were prevented from adding ndo_set_vf_* callbacks
> over the last few years. This was expected to result in broader
> switchdev adoption, but seems to have had little effect.
> 
> Based on recent netdev meeting there is broad support for allowing
> adding those ops.
> 
> There is a problem with the current API supporting a limited number
> of VFs (100+, which is less than some modern HW supports).
> We can try to solve it by adding similar functionality on devlink
> ports, but that'd be another API variation to maintain.
> So a netlink attribute reshuffling is a more likely outcome.
> 
> Document the guidance, make it clear that the API is frozen.
> 
> Signed-off-by: Jakub Kicinski <kuba@...nel.org>
> ---
> v2:
>  - edits from Randy
> v1: https://lore.kernel.org/all/20240618192818.554646-1-kuba@kernel.org/
> 
> CC: corbet@....net
> CC: rdunlap@...radead.org
> CC: linux-doc@...r.kernel.org
> ---
>  Documentation/networking/index.rst |  1 +
>  Documentation/networking/sriov.rst | 25 +++++++++++++++++++++++++
>  2 files changed, 26 insertions(+)
>  create mode 100644 Documentation/networking/sriov.rst

Reviewed-by: Randy Dunlap <rdunlap@...radead.org>

Thanks.

-- 
~Randy