Anyone using Solarflare on FreeBSD 10-STABLE ?

[Mark Saad]

On Tue, Oct 17, 2017 at 3:44 PM, Andrew Rybchenko <arybchik at freebsd.org> wrote:
> On 10/17/2017 08:54 PM, Philip Paeps wrote:
>>
>> On 2017-10-17 19:36:20 (+0200), Allan Jude wrote:
>>>
>>> On 10/17/2017 12:32, Mark Saad wrote:
>>>>
>>>> Speificly I wanted to know if anyone knew what this sysctl refers to
>>>>
>>>> dev.sfxge.NN.stats.rxdp_di_dropped_pkts
>>>
>>>
>>> I have two 11.1 boxes with a dual ported sfxge each, but I have no idea
>>> what that counter is trying to describe.
>>>
>>> The man page says this is Philip's fault.
>>
>>
>> This code is not my fault! ;-)  I believe arybchik added it.
>>
>> Looking at the code, it's packets that have been dropped in the data path
>> by the dispatcher cpu.  Probably related to virtual functions?
>
>
> Philip, thanks. I don't think in this particular case it is related to
> virtual functions.
>
> Basically the counter means that ingress packet does not match any installed
> filter. E.g. promiscuous mode is disabled and:
>  - destination MAC is unicast and not the interface MAC address, OR
>  - destination MAC is multicast and there is no matching multicast address
> added.
>
> There is a race condition as well on interface bring up when packet is
> received but default filters are not installed yet.
>
> SFN8522 and SFN8542 have other cases for encapsulated traffic depending on
> driver version (right now I don't remember the state in 10-STABLE).
>
> Mark, let me know if I can help more.
>
> Andrew.

Could you clarify what was meant by Virtual Functions ? Vlans , laggs
etc or srv-io ?
 Also I do have IGMP snoop enabled and routing is done locally on each
router -, the freebsd box with the sfxge cards.


-- 
mark saad | nonesuch at longcount.org