netdev - Re: [net-next-2.6 V7 PATCH 1/2] Add netlink support for virtual port management (was iovnl)

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Date:	Fri, 14 May 2010 19:26:42 +0200
From:	Patrick McHardy <kaber@...sh.net>
To:	Scott Feldman <scofeldm@...co.com>
CC:	Arnd Bergmann <arnd@...db.de>, davem@...emloft.net,
	netdev@...r.kernel.org, chrisw@...hat.com
Subject: Re: [net-next-2.6 V7 PATCH 1/2] Add netlink support for virtual port
 management (was iovnl)

Scott Feldman wrote:
> On 5/14/10 9:42 AM, "Patrick McHardy" <kaber@...sh.net> wrote:
> 
>> Arnd Bergmann wrote:
>>> Maybe a better structure would be to separate the two cases, also allowing
>>> a port profile to be associated with both the PF and with each of its VFs?
>>>
>>> Something like this:
>>>
>>> [IFLA_NUM_VF]
>>> [IFLA_VF_PORTS]
>>>   [IFLA_VF_PORT]
>>>     [IFLA_VF_PORT_*], ...
>>>   [IFLA_VF_PORT]
>>>     [IFLA_VF_PORT_*], ...
>>> [IFLA_PORT_SELF]
>>>   [IFLA_VF_PORT_*], ...
>> That would also be fine.
> 
> I want to make sure I've got this right before starting on ver8 of patch:
> 
>     - we'll use the layout listed above
> 
>     - RTM_SETLINK msg includes the full nested layout
> 
>         - contains IFLA_VF_PORTs for all VFs of a PF
>         - OR, contains IFLA_PORT_SELF if PF is it's own VF
> 
>         - it's up to the receiver to compare for changes for each VF
> 
>     - RTM_GETLINK msg includes the full nested layout
> 
>         - same rules as RTM_SETLINK above
> 
> I think we should redo the other IFLA_VF_xxx msgs in the same style.  I'm
> not going to tackle that for IFLA_VF_PORTS patch, but it would be a good
> followup patch.

Agreed.

> Do we have a plan?

That sounds good to me. If you have any netlink related questions,
just let me know.
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