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Re: [PATCH] support for Cobalt Networks (x86 only) systems (forrealthis

To: jamal <hadi@xxxxxxxxxx>
Subject: Re: [PATCH] support for Cobalt Networks (x86 only) systems (forrealthis
From: Bogdan Costescu <bogdan.costescu@xxxxxxxxxxxxxxxxxxxxx>
Date: Sun, 3 Jun 2001 14:09:01 +0200 (CEST)
Cc: Jeff Garzik <jgarzik@xxxxxxxxxxxxxxxx>, Alan Cox <alan@xxxxxxxxxxxxxxxxxxx>, Pete Zaitcev <zaitcev@xxxxxxxxxx>, Linux Kernel Mailing List <linux-kernel@xxxxxxxxxxxxxxx>, <netdev@xxxxxxxxxxx>
In-reply-to: <Pine.GSO.4.30.0106011357000.11540-100000@shell.cyberus.ca>
Sender: owner-netdev@xxxxxxxxxxx
On Sat, 2 Jun 2001, jamal wrote:

> Still, the tx watchdogs are a good source of fault detection in the case
> of non-availabilty of MII detection and even with the presence of MII.

Agreed. But my question was a bit different: is there any legit situation
where Tx timeouts can happen in a row _without_ having a link loss ? In
this situation, we'd have false positives...

> "Dynamic" in the above sense means trying to totaly avoid making it a
> synchronous poll. The poll rate is a function of how many packets go out
> that device per average measurement time. Basically, the period that the
> user space app dumps "hello" netlink packets to the kernel is a variable.

Sounds nice, but could this be implemented light enough ?

-- 
Bogdan Costescu

IWR - Interdisziplinaeres Zentrum fuer Wissenschaftliches Rechnen
Universitaet Heidelberg, INF 368, D-69120 Heidelberg, GERMANY
Telephone: +49 6221 54 8869, Telefax: +49 6221 54 8868
E-mail: Bogdan.Costescu@xxxxxxxxxxxxxxxxxxxxx


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