netdev - Re: eSwitch management

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Date:	Thu, 22 Apr 2010 22:57:51 -0700
From:	Anirban Chakraborty <anirban.chakraborty@...gic.com>
To:	Scott Feldman <scofeldm@...co.com>
CC:	David Miller <davem@...emloft.net>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	"chrisw@...hat.com" <chrisw@...hat.com>,
	Arnd Bergmann <arnd@...db.de>,
	Ameen Rahman <ameen.rahman@...gic.com>,
	Amit Salecha <amit.salecha@...gic.com>,
	Rajesh Borundia <rajesh.borundia@...gic.com>
Subject: Re: eSwitch management


On Apr 22, 2010, at 6:29 PM, Scott Feldman wrote:

> On 4/22/10 5:47 PM, "Scott Feldman" <scofeldm@...co.com> wrote:
> 
>> On 4/22/10 4:16 PM, "Anirban Chakraborty" <anirban.chakraborty@...gic.com>
>> wrote:
>> 
>>> I am following the discussions on iovnl patch closely. While it is going to
>>> take some time for iovnl patch to be reviewed and accepted, what would be the
>>> interim approach to manage the eswitch in NIC? We need to add support in
>>> qlcnic driver to configure the eswitch in our 10G NIC. Some of the things
>>> that
>>> we need to set to the switch are setting a port's VLAN, tx bandwidth etc. We
>>> would like to set these parameters for a bunch of ports at the start of the
>>> day and set it to the eswitch.
>> 
>> Are any of these settings covered in DCB?  (net/dcb/dcbnl.c).  Maybe you can
>> get a start there?  Not sure not knowing your device requirements.
> 
> Or maybe the RTM_SETLINK IFLA_VF_* ops in include/linux/if_link.h?  Those
> seem like what you're looking for.  I'm looking at moving iovnl here as well
> for port-profile.

It looks like ifla_vf_info does contain most of the data set. But if I use it, what NETLINK protocol family should I use in my driver to receive netlink messages? Do I need to create a private protocol family?

Thanks a lot,
Anirban

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