Re: Question about the mechanism of RoCEv2 VLAN validation

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On 2021/1/28 22:12, Jason Gunthorpe wrote:
> On Thu, Jan 28, 2021 at 02:08:21PM +0000, liweihang wrote:
> 
>> UD is connectionless-oriented, an UD QP won't record VLAN info in it's QPC,
>> so how to achieve the checking mechanism? Or a UD QP should just ignore the
>> unmatched VLAN ID?
> 
> Right, UD QPs recieve all packets for the entire device that match the
> UD QPN
> 
> They indirectly report the incoming gid table index they were matched
> with in the completion and the first 40 bytes
> 
> If an app only wants to look at certain gid table entries then it is
> up to the app to filter
> 
> Jason
> 

Thank you, Jason. It's really helpful.

Weihang



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