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Date: Tue, 20 Sep 2016 22:47:47 +0200 From: Jesper Dangaard Brouer <brouer@...hat.com> To: Eric Dumazet <eric.dumazet@...il.com> Cc: Alexei Starovoitov <alexei.starovoitov@...il.com>, Tom Herbert <tom@...bertland.com>, Tariq Toukan <ttoukan.linux@...il.com>, Tariq Toukan <tariqt@...lanox.com>, "David S. Miller" <davem@...emloft.net>, Linux Kernel Network Developers <netdev@...r.kernel.org>, Eran Ben Elisha <eranbe@...lanox.com>, Saeed Mahameed <saeedm@...lanox.com>, Rana Shahout <ranas@...lanox.com>, brouer@...hat.com Subject: Re: [PATCH net-next 7/8] net/mlx5e: XDP TX forwarding support On Tue, 20 Sep 2016 20:59:39 +0200 Jesper Dangaard Brouer <brouer@...hat.com> wrote: > On Tue, 20 Sep 2016 10:39:20 -0700 Eric Dumazet <eric.dumazet@...il.com> wrote: > [...] > > > Many existing supervision infrastructures collect device snmp > > counters, and run as unprivileged programs. > > A supervision infrastructures is a valid use-case. It again indicate > that such XDP stats need to structured, not just a random driver > specific ethtool counter, to make it easy for such collection daemons. > > > > tracepoints might not fit the need here, compared to a mere > > tx_ring->tx_drops++ > > I do see your point. I really liked the tracepoint idea, but now I'm > uncertain again... I've document the need for Troubleshooting and Monitoring, so we don't forget about it. See: Commit: https://github.com/netoptimizer/prototype-kernel/commit/3925249089ae4 Online doc: https://prototype-kernel.readthedocs.io/en/latest/networking/XDP/implementation/userspace_api.html#troubleshooting-and-monitoring -- Best regards, Jesper Dangaard Brouer MSc.CS, Principal Kernel Engineer at Red Hat Author of http://www.iptv-analyzer.org LinkedIn: http://www.linkedin.com/in/brouer
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