link state with the new usb_net driver

[Pirmin Duss]

Hello Sebastian,

On 02.02.24 10:57, Sebastian Sumpf wrote:
> It works and is tested for all drivers except SMC95xx, where it is not 
> working. The reason is that the driver registers itself as an mdio 
> driver for itself and uses the PHY and IRQ domain infrastructure (see: 
> smsc95xx_bind -> phy_connect_direct) to track link state changes. The 
> old Linux driver did not it this way and I have not taken the time to 
> look into it because to enable the MDIO/PHY parts for virt_linux is 
> non-trivial. You could try and find out how the old Linux driver 
> implemented link-state changes and maybe there is an easier way to do it.
> 
> Btw, I had to patch the driver so it will not report link state down 
> ("NIC sessions: 0") all the time ;)

Thanks for the information. I will try to look in to this, but first I 
have more important tasks to complete.

I will also have to figure out why I do have sporadically the log line 
below while my new usb_net driver is running:

[init -> usb_host_drv] Error: lx_emul_mem_free called with invalid ptr 
0x10305

The address is changing. I did never see the message before introducing 
my new usb_net driver.


Regards,
Pirmin