netdev - Re: [PATCH] firewire: net: rate-limit log spam at transmit failure

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Date:	Sun, 07 Nov 2010 13:03:08 +0100
From:	Stefan Richter <stefanr@...6.in-berlin.de>
To:	Maxim Levitsky <maximlevitsky@...il.com>
CC:	linux1394-devel@...ts.sourceforge.net,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: Re: [PATCH] firewire: net: rate-limit log spam at transmit failure

Maxim Levitsky wrote:
> I have here my own hack to set the transaction timeout,

You can use firecontrol to set it on-the-fly.  To set it on node ffc2 i.e. the
node with phy ID 2, and controller 1 (i.e. libraw1394 "port" 1):
# echo "w . 2 0xfffff0000018 4 3" | firecontrol 1

This sets the whole-seconds part to 3, which gives you 3.1 seconds timeout if
the fractional part at 0xfffff000001c is still at its default value of 0.1
seconds, i.e. 800 << 19 (subsecond part in units of (1/8000)s shifted by 19).

# { echo "r . 2 0xfffff0000018 4"; echo "r . 2 0xfffff000001c 4"; } |
firecontrol 1

displays the current register value on node ffc2 at port 1.  Type "help" in
firecontrol for more available firecontrol commands.
-- 
Stefan Richter
-=====-==-=- =-== --===
http://arcgraph.de/sr/
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