On Wed, Aug 17, 2011 at 6:50 PM, Greg Ungerer <g...@snapgear.com> wrote:
> Hi Nunya,
>
> On 17/08/11 02:22, nunya si wrote:
>>
>> I have project where I take new uClinux on a coldfire 5275 dev board
>> and bridge both Ethernet interfaces together with brctl.
>>
>> If Ethernet plugged in when I turn on the board everything work just
>> fine BUT if I turn on board and THEN plug in Ethernet after it has
>> booted then I can talk to the local address but nothing passes in/out
>> of the bridge. Also if I power board up with Ethernet and un-plug and
>> re-plug in Ethernet then same problem, talk locally but not across
>> bridge.
>>
>> Doing "ifconfig eth0 up" every time I plug in cable will cause
>> everything to work.
>>
>> I play with:
>>
>> fec_enet_adjust_link(struct net_device *dev) function in fec.c and if
>> run only once:
>>
>> static char rerun=0;
>> if(rerun++>0) return;
>>
>> ácan solve up/down/up issue, but not plug in after boot issue. Not
>> know how to run ifconfig from driver automatic.
>>
>> What can do to solve issue to make eth0... Work in bridge after plug
>> in/out Ethernet all by itself?
>
> Do you have either mii-tool or ethtool on your target?
> It would be good to know what they report as the link
> status on eth0.
>
> Regards
> Greg
>
>
>
Thank You Greg,
I install ethtool and report is as follows:
/> ethtool eth0
Settings for eth0:
Supported ports: [ TP MII ]
Supported link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
Supports auto-negotiation: Yes
Advertised link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
Advertised auto-negotiation: Yes
Speed: 100Mb/s
Duplex: Full
Port: MII
PHYAD: 1
Transceiver: external
Auto-negotiation: on
Link detected: yes
Also /proc/kmsg announces: "PHY: 1:01 - Link is Up - 100/Full
Also bridge reports after link up: br0: port 1(eth0) entering forwarding state
but still bridge is broken...
I have bad fix like this in fec.c last lines of function static void
fec_enet_adjust_link(struct net_device *dev):
if (status_change)
{
phy_print_status(phy_dev);
dev_ioctl(dev_net(dev), SIOCSIFFLAGS, "eth0"); // hack make
eth0 work
}
And this fixes everything so far... no right way to fix but working.
Ideas?
Regards (and thank You),
Nunya Si
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