kern/174851: [bxe] [patch] UDP checksum offload is wrong in bxe driver

[Adrian Chadd]

On 31 December 2012 07:58, Garrett Cooper <yanegomi at gmail.com> wrote:

> I would ask David about whether or not there was a performance
> difference because they might have some numbers for if_bxe.
>
> Not sure about the concept in general, but it seems like a reasonable
> application protocol specific request. But by and large, I agree that
> UDP checksumming doesn't make logical sense because it adds
> unnecessary overhead on a L3 protocol that's assumed to be unreliable.

People are terminating millions of VoIP calls on FreeBSD devices. All using UDP.

I can imagine large scale VoIP gateways wanting to try and benefit from this.



Adrian