Anyone using Solarflare on FreeBSD 10-STABLE ?

[Andrew Rybchenko]

On 10/25/2017 12:04 AM, Mark Saad wrote:
> 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.

I meant SR-IOV. Which SF NIC do you use?

Andrew.