From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mo6-p00-ob.smtp.rzone.de (mo6-p00-ob.smtp.rzone.de [IPv6:2a01:238:20a:202:5300::1]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 3zcFw74SMbzF12j for ; Thu, 8 Feb 2018 09:13:41 +1100 (AEDT) Content-Type: multipart/alternative; boundary=Apple-Mail-83BC7C2C-F4A1-41A1-96C8-94D195D79D13 Mime-Version: 1.0 (1.0) Subject: Re: DPAA Ethernet traffice troubles with Linux kernel From: Christian Zigotzky In-Reply-To: <20180207211725.GA27167@lunn.ch> Date: Wed, 7 Feb 2018 23:13:27 +0100 Cc: mad skateman , Madalin-cristian Bucur , "linuxppc-dev@lists.ozlabs.org" , Jamie Krueger Message-Id: <9FB0E24D-AC58-45EA-9DDD-740E76A8C62E@xenosoft.de> References: <1516125454.18795.87.camel@infinera.com> <20180116205342.GA29888@lunn.ch> <1516189651.18795.99.camel@infinera.com> <20180117134339.GC32299@lunn.ch> <1d62c827-0ff7-0372-a2f8-f1930e9f788c@xenosoft.de> <20180207211725.GA27167@lunn.ch> To: Andrew Lunn List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , --Apple-Mail-83BC7C2C-F4A1-41A1-96C8-94D195D79D13 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Hi Andrew, How can we fix the buffer problem? Thanks, Christian On 7. Feb 2018, at 22:17, Andrew Lunn wrote: On Wed, Feb 07, 2018 at 10:00:45PM +0100, mad skateman wrote: Hi, I just found out that something goes wrong within the ARP table (well thats what i think). I hope someone has a clue.. =E2=80=94=E2=80=94=E2=80=94=E2=80=94=E2=80=94=E2=80=94 This looks like 'normal' behaviour. It has been reported that the device runs out of buffers. That means it will fail to receive ARP replies. So the ARP entry will time out and be removed, as it should. Fix the buffer problem, and ARP will likely work properly. Andrew= --Apple-Mail-83BC7C2C-F4A1-41A1-96C8-94D195D79D13 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: quoted-printable

Hi Andrew,


How can we fix= the buffer problem?


Thanks,

Christian

<= p style=3D"margin: 0px; font-stretch: normal; font-size: 12px; line-height: n= ormal; font-family: Helvetica; min-height: 13.8px;">


On 7. Feb 2018, at 22:17, Andrew Lu= nn <andrew@lunn.ch> wrote:


On Wed, Feb 07, 2018 at 10:00:45PM +0100, mad skateman= wrote:

Hi,

=

I just found out that something goes w= rong within the ARP table (well thats

what i think). I hope someone has a c= lue..


<= span style=3D"font-size: 12pt;">=E2=80=94=E2=80=94=E2=80=94=E2=80=94=E2=80=94= =E2=80=94


This looks like 'normal' behaviour. It h= as been reported that the

device runs out of buffers. That means it will fai= l to receive ARP

replies. So the ARP entry will time out and be removed, as= it should.

=

Fix the buffer problem, and ARP will l= ikely work properly.


 = ;  Andrew

= --Apple-Mail-83BC7C2C-F4A1-41A1-96C8-94D195D79D13--