Date: Thu, 25 May 2017 18:09:58 +0200 From: Harry Schmalzbauer <freebsd@omnilan.de> To: Vincenzo Maffione <v.maffione@gmail.com> Cc: freebsd-net <freebsd-net@freebsd.org> Subject: Re: [panic] netmap(4) and if_lagg(4) Message-ID: <592701D6.7030301@omnilan.de> In-Reply-To: <CA%2B_eA9hripEStmfJhj_Q93OF5jFf2nfQXeuA2DnuSjBmJi6j4g@mail.gmail.com> References: <58CBCD7A.8060301@omnilan.de> <CA%2B_eA9iCT7evWUcZMA_ViKfrZnSHp3OpBTS5c4iJ9=ZjO-Pfgw@mail.gmail.com> <58CC23F5.7060507@omnilan.de> <CA%2B_eA9iajZOUFsnWKdodN7zMvst8wn0xViM4xxEx%2B41jw_0B3g@mail.gmail.com> <58CFA394.8070901@omnilan.de> <CA%2B_eA9jf_VjcYUZynu5CXx-ps5z7PSxOky=QLpR-miqtxmMU5w@mail.gmail.com> <5926EE96.1010000@omnilan.de> <CA%2B_eA9gcMD1QyG35p5UY8kz6n1kF%2B56Arz3q1T8HVBfMv3XN0w@mail.gmail.com> <5926F9F9.4040706@omnilan.de> <CA%2B_eA9hripEStmfJhj_Q93OF5jFf2nfQXeuA2DnuSjBmJi6j4g@mail.gmail.com>
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Bezüglich Vincenzo Maffione's Nachricht vom 25.05.2017 17:56 (localtime): > I see the bug is in FreeBSD 11. I attached the simple patch to fix it. > Can someone commit the patch to 11/stable? > > Harry: You should be able to workaround the bug by setting > > # sysctl dev.netmap.generic_rings=1 I'll recompile with your patch, thanks a lot! > And yes, if_lagg(4) doesn't have native netmap support, like all the > meta-drivers (e.g. vlan, tunnels, etc.). > Point is that you should implement link aggregation in your application (in > user-space). Thanks for confirmation. My problem is that I can't pass frames to guests without vlan filtering first :-( Focus is not on inter-VM-connection, but most efficient port usage _and_ vm-interconnection. The more I learn the less I know what to do ;-) If I only had VF-capable hardware (actually VF-"supported" hardware, 82576 was SR-IOV enabled, but at the advent of 10GbE, SR-IOV support for older chips was removed - where initially implemented - and of course not implemented anywhere else). -harry
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