netdev - Re: [PATCH net-next v5 00/10] add sriov support for wangxun NICs

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Message-Id: <AADA412A-F7C4-4B73-A23A-ECD68ABFC060@net-swift.com>
Date: Tue, 6 Aug 2024 17:37:36 +0800
From: "mengyuanlou@...-swift.com" <mengyuanlou@...-swift.com>
To: Simon Horman <horms@...nel.org>
Cc: netdev@...r.kernel.org
Subject: Re: [PATCH net-next v5 00/10] add sriov support for wangxun NICs



> 2024年8月6日 00:40，Simon Horman <horms@...nel.org> 写道：
> 
> On Sun, Aug 04, 2024 at 08:48:31PM +0800, Mengyuan Lou wrote:
>> Add sriov_configure for ngbe and txgbe drivers.
>> Reallocate queue and irq resources when sriov is enabled.
>> Add wx_msg_task in interrupts handler, which is used to process the
>> configuration sent by vfs.
>> Add ping_vf for wx_pf to tell vfs about pf link change.
>> Make devlink allocation function generic to use it for PF and for VF.
>> Add PF/VF devlink port creation. It will be used to set/get VFs.
> 
> I think it would be good to summarise the overall status of SR-IOV support
> with this patch, and what follow-up work is planned. As Jakub mentioned [1]
> this does not seem complete as is.
> 

Ok，got it.

> [1] https://lore.kernel.org/netdev/988BFB51-32C8-499C-837D-91CC1C0FFE42@net-swift.com/
> 
> I mean, I understand the NDOs were removed from the patchset (see more on
> that below) but there needs to be a plan to support users of this device
> in a meaningful way.
> 
>> 
>> v5:
>> - Add devlink allocation which will be used to add uAPI.
>> - Remove unused EXPORT_SYMBOL.
>> - Unify some functions return styles in patch 1 and patch 4.
>> - Make the code line less than 80 columns.
>> v4:
>> https://lore.kernel.org/netdev/3601E5DE87D2BC4F+20240604155850.51983-1-mengyuanlou@net-swift.com/
>> - Move wx_ping_vf to patch 6.
>> - Modify return section format in Kernel docs.
>> v3:
>> https://lore.kernel.org/netdev/587FAB7876D85676+20240415110225.75132-1-mengyuanlou@net-swift.com/
>> - Do not accept any new implementations of the old SR-IOV API.
>> - So remove ndo_vf_xxx in these patches. Switch mode ops will be added
>> - in vf driver which will be submitted later.
> 
> FYI, this policy was recently significantly relaxed [2]:
> 
> [2] https://lore.kernel.org/netdev/20240620002741.1029936-1-kuba@kernel.org/
> 
>> v2:
>> https://lore.kernel.org/netdev/EF19E603F7CCA7B9+20240403092714.3027-1-mengyuanlou@net-swift.com/
>> - Fix some used uninitialised.
>> - Use poll + yield with delay instead of busy poll of 10 times in
>> mbx_lock obtain.
>> - Split msg_task and flow into separate patches.
>> v1:
>> https://lore.kernel.org/netdev/DA3033FE3CCBBB84+20240307095755.7130-1-mengyuanlou@net-swift.com/
> 
> ...
> 
>