netdev - Re: [PATCH net-next RESEND] net: Do not call ndo_dflt_fdb_dump if ndo_fdb

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Message-ID: <54911A92.9020909@cumulusnetworks.com>
Date:	Tue, 16 Dec 2014 21:54:26 -0800
From:	Roopa Prabhu <roopa@...ulusnetworks.com>
To:	"Samudrala, Sridhar" <sridhar.samudrala@...el.com>
CC:	John Fastabend <john.fastabend@...il.com>,
	Jamal Hadi Salim <jhs@...atatu.com>,
	Hubert Sokolowski <h.sokolowski@....edu.pl>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	Vlad Yasevich <vyasevic@...hat.com>
Subject: Re: [PATCH net-next RESEND] net: Do not call ndo_dflt_fdb_dump if
 ndo_fdb_dump is defined.

On 12/16/14, 12:11 PM, Samudrala, Sridhar wrote:
>
> On 12/16/2014 11:30 AM, Roopa Prabhu wrote:
>> On 12/16/14, 9:21 AM, Samudrala, Sridhar wrote:
>>>
>>> On 12/16/2014 8:35 AM, John Fastabend wrote:
>>>>
>>>>> Is there no way to get the unicast/multicast mac addresses for such
>>>>> a driver?
>>>>
>>>> You can almost infer it from ip link by looking at all the stacked
>>>> drivers and figuring out how the address are propagated down. Then
>>>> look at the routes and figure out multicast address. But other than
>>>> the fdb dump mechanism I don't think there is anything.
>>>
>>> It looks like we can get the device specific unicast/multicast mac 
>>> addresses via 'ip maddr' too.
>> if i remember correctly, 'ip maddr' was only for multicast list. And 
>> there was no way to dump the unicast list until bridge self was 
>> introduced.
>> the only way to dump unicast addresses today is by using the `bridge 
>> fdb show self`
> Yes. 'ip maddr show' only lists the multicast macs as the name 
> suggests. I stand corrected.
> May be we need 'ip uaddr show' to list unicast macs instead of 
> overloading 'bridge fdb show' to show unicast lists.
>
maybe too late for that ..., 'bridge fdb show self' has been out for 
sometime now and in use
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