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Date: Mon, 27 Aug 2012 11:32:27 +0100 From: Aníbal Almeida Pinto <anibal.pinto@...cec.com> To: Eric Dumazet <eric.dumazet@...il.com> CC: <netdev@...r.kernel.org> Subject: Re: Gianfar ethernet drop package Em 24-08-2012 19:17, Eric Dumazet escreveu: > On Fri, 2012-08-24 at 17:14 +0100, Aníbal Almeida Pinto wrote: >> Hi, >> >> I have an board with a ppc with a 8379, kernel 3.0.39 and with a Gianfar >> Ethernet Controller Version 1.2. >> >> When connect the board to office network the number of dropped packets >> reported by ifconfig continues to increase. >> >> Following the test made at [1] I use tcpdump and when running it the >> number of drop packages don't have increased. >> >> When executing ethtool eth0 -S it return a rx-dropped-by-kernel != 0. >> And the rest of drop packages >> >> Is possible to get info why the packages are dropped? > > You receive frames for unknown protocols. So they are dropped. > > When running tcpdump, your tcpdump get them, they are not dropped. > > So just parse your tcpdump output ? > I generate the log on the board with tcpdump -i eth0 -w log_eth0.txt and loaded the result on wireshark (on other pc). On the wireshark everything appears to be fine don't have nothing that indicate the protocol isn't supported. On /etc/protocols is a list with protocols, it there is a place where exist a place with protocols supported by kernel ? Thanks -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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