linux-kernel - Re: [PATCH]realtek:r8169: Bugfix or workaround for missing extended GigaMAC registers settings

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Message-ID: <20121130063500.GA9436@electric-eye.fr.zoreil.com>
Date:	Fri, 30 Nov 2012 07:35:00 +0100
From:	Francois Romieu <romieu@...zoreil.com>
To:	Wang YanQing <udknight@...il.com>
Cc:	nic_swsd@...ltek.com, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org, Hayes Wang <hayeswang@...ltek.com>
Subject: Re: [PATCH]realtek:r8169: Bugfix or workaround for missing extended GigaMAC registers settings

Wang YanQing <udknight@...il.com> :
[...]
> After add some debug code, I found this NIC only accept ethernet
> broadcast package, it can't filter out the package send to its
> MAC address, but it works good for sending.So ifconfig show the
> RX/TX status means it can receive ARP package.(It don't its MAC
> address, so below)

Which kernel version is it ?

[...]
> I haven't see any code to set GigaMAC registers in kernel when boot,
> so I guess BIOS or NIC's circuit make it, but of course one miss

I'd appreciate to figure it out (and understand why I did not notice
it when testing).

> the extended GigaMAC registers  in this problem. The probe code can
> get MAC address right, so MAC{0,4} must had been setted, but some
> guys forget the extended GigaMAC registers.
> 
> This patch fix it.

It is a good analysis job.

I'd rather see the GigaMAC registers written through a call to
rtl_rar_set when the mac address is read in rtl_init_one instead
of duplicating most of rtl_rar_set in a quite different place.

Hayes, can you specify if it would work or if it may mess the registers
init sequence ordering ?

Thanks.

-- 
Ueimor
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