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List:       freebsd-hackers
Subject:    Re: Anyone using Solarflare on FreeBSD 10-STABLE ?
From:       Mark Saad <nonesuch () longcount ! org>
Date:       2017-10-30 12:46:51
Message-ID: 539BFBD6-0F30-46D0-BB23-4C4547542B51 () longcount ! org
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> On Oct 30, 2017, at 6:11 AM, Andrew Rybchenko <arybchik@freebsd.org> wrote:
> 
> > On 10/27/2017 09:02 PM, Mark Saad wrote:
> > > On Fri, Oct 27, 2017 at 2:55 AM, Andrew Rybchenko <arybchik@freebsd.org> wrote:
> > > On 10/25/2017 12:04 AM, Mark Saad wrote:
> > > 
> > > On Tue, Oct 17, 2017 at 3:44 PM, Andrew Rybchenko <arybchik@freebsd.org>
> > > wrote:
> > > 
> > > 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.
> > Andrew
> > I am using IIRC 7140's This is what I get from the various utils
> > 
> > Solarflare Flareon Ultra 7000 Series 10G Adapter
> > Firmware version:   v6.4.3
> > Controller type:    Solarflare SFC9140
> > Boot ROM version:   v5.0.4.1000
> 
> Do I understand correctly that rxdp_di_dropped_pkts grows when interface is \
> running? I.e. it is not just few packets at start up.

Correct the counter is a 6 -7 digit number, depending on which server I am looking \
at. It increases but I am not exactly sure why of the rate .
> 
> If it is possible, I'd try to enable promisc mode and check if stops the counter \
> grow. If so and traffic is not huge, I'd try to sniff on the interface and filter \
> out traffic to local MAC, broadcast and locally added multicast addresses to check \
> if unexpected traffic comes to the interface.
> 
> Andrew.

I will try this on my lab and see what happens . Thanks again for the ideas .


---
Mark Saad | nonesuch@longcount.org
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