On Tue, Mar 15, 2016 at 07:09:14PM +0100, Karsten Merker wrote:

On Tue, Mar 15, 2016 at 06:41:39AM +0100, Michael Haas wrote:

...

This change is required to get GBIT Ethernet to work reliably on my board. Without CONFIG_GMAC_TX_DELAY=4, the connection suffers severe packet loss and SSH becomes unusable.

--- 192.168.1.1 ping statistics --- 100 packets transmitted, 100 received, 0% packet loss, time 19842ms rtt min/avg/max/mdev = 0.260/0.334/0.527/0.038 ms

I have also tried CONFIG_GMAC_TX_DELAY=3, which still yielded 11-13% packet loss.

Hello,

unfortunately this change doesn't solve the gigabit issues on my LIME2 - it even seems to make them worse on my board.

Sometimes I wonder if we don't need to make a way to make this tweakable at run time instead. On my board I forget what the setting is that makes it mostly usable, but it's not the default one for sure.