Bug#664461: [squeeze] atl1c: AR8152: "transmit queue 0 timed out" and network is unusable until reset

["Huang, Xiong" <xiong@qca.qualcomm.com>]

> 
> I've attempted to backport these changes to Linux 2.6.32 as used in the
> current Debian stable release.  The result can be found at:
> 
> git://anonscm.debian.org/kernel/linux-2.6.git squeeze-driver-test
> 
> Please can you review the changes and test whether this works properly (I
> have no hardware to test).  The major difference I'm concerned about is in
> VLAN handling; I'm not sure that the backported version of the driver will
> configure the MAC properly for VLAN tag removal whenever it should.
> 

I will review it. but I have not environment to test VLAN :( 

> >      Most of the time, the issue of  tx q0 timeout is caused by wrong
> > HW configuration and bad cable condition.
> > It will cause the PHY/cable link unstable, and the driver doesn't
> > correctly reset the DMA engine and clear  all Pending tx-packet while
> > link down --- and timeout issue will appear.
> [...]
> 
> So is this fixed in the current driver version?  Or are you saying that this is a
> hardware bug that can't be fixed?
> 
You can think so,  I mean the latest driver.

-Xiong