[dpdk-dev] [PATCH] examples/l3fwd: force CRC stripping for i40evf

[Ananyev, Konstantin]

> 
> Adding Helin to the conversation.
> 
> > That's a common problem across Intel VF devices. Bothe igb and ixgbe
> > overcomes that problem just by forcing ' rxmode.hw_strip_crc = 1;' at
> > PMD itself:
> 
> [...]
> 
> > Wonder, can't i40e VF do the same?
> 
> Right, however, and this (silent failure) approach was rejected by the
> maintainers. Please, refer to this thread:
> http://dpdk.org/ml/archives/dev/2016-April/037523.html
> 
>  > BTW, all other examples would experience same problem too, right?
> 
> Correct, so the broader question would be "what is the correct behavior
> for an example application, when a port configuration isn't supported by
> the hardware?".
> 
> My stand, FWIW, is that igb and ixgbe should have the same semantics as
> i40e currently has, i.e. return an error to the user if the port is
> mis-configured, NOT changing the setting behind the users back.
> 

Fine by me, but then it means that the fix haw to include changes for all apps
plus ixgbe and igb PMDs, correct? :)

Konstantin