On 02/07/2013 06:50 PM, Rafał Miłecki wrote:
> 2013/2/7 Rafał Miłecki <[email protected]>:
>> The problem is that in failsafe my ethernet driver works fine (I can
>> ping router and the other way), but in normal mode (with virtual
>> interfaces) it stops working. My intention is to create all virtual
>> interfaces manually, to see where exactly my eth driver fails.
> 
> OK, I've discovered something weird. First of all:
>> # brctl show
>> bridge name     bridge id               STP enabled     interfaces
>> br-lan          8000.c83a3540c1a8       no              eth0.0
> 
> It seems there is something wrong with eth0.0. When I switch br-lan to
> eth0 (from eth0.0) using:
>> # brctl delif br-lan eth0.0
>> # brctl addif br-lan eth0
> Ethernet starts working!
> 
> Please see attached file for log with "ifconfig -a" calls.
> 
> Does anyone have any idea what may be wrong with that eth0.0
> interface? Why using it for br-lan fails? Why swtiching br-lan to eth0
> succeeds? I expected eth0.0 to work the same way as eth0.
> 
> 
> There is one more tricky part. You may wonder what happens if I switch
> br-lan back to eth0.0 (from eth0). Well pinging works again, but only
> for a limited amount of time. Sometimes I can't see even one
> "ping-pong" and sometimes it keeps working even for 20 seconds.
> Anyway, after a moment it stops again. Repeating the whole scenario:
>> brctl delif br-lan eth0.0
>> brctl addif br-lan eth0
>> brctl delif br-lan eth0
>> brctl addif br-lan eth0.0
> Makes pinging work again for few seconds.
> 

I assume the switch driver you are using is broken. I do not get some of
my devices to work with the bgmac driver + BCM53125 at all. After some
modifications to the switch driver I was able to transmit some packages
but did not receive anything. I do not want to invest many efforts in
the old switch driver that's the reason I want to get a separate phy
driver and use the b53 switch driver any try this out or fix it if
necessary. I assume your problem is also related to the switch.

Did you apply the patches I added to OpenWrt [0] and send for linux
mainline kernel inclusion? They are needed to make bridge the switch
interface, otherwise you get the problems described in this ticket [1].

Hauke

[0]: https://dev.openwrt.org/changeset/35507
[1]: https://dev.openwrt.org/ticket/12927
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