On Thu, Jan 27, 2022 at 12:13:53PM +0100, Greg KH wrote: > On Thu, Jan 27, 2022 at 12:07:42PM +0100, Oleksij Rempel wrote: > > The weakest link of usbnet devices is the USB cable. > > The weakest link of any USB device is the cable, why is this somehow > special to usbnet devices? > > > Currently there is > > no way to automatically detect cable related issues except of analyzing > > kernel log, which would differ depending on the USB host controller. > > > > The Ethernet packet counter could potentially show evidence of some USB > > related issues, but can be Ethernet related problem as well. > > > > To provide generic way to detect USB issues or HW issues on different > > levels we need to make use of devlink. > > Please make this generic to all USB devices, usbnet is not special here > at all. Ok. I'll need some help. What is the best place to attach devlink registration in the USB subsystem and the places to attach health reporters? Regards, Oleksij -- Pengutronix e.K. | | Steuerwalder Str. 21 | http://www.pengutronix.de/ | 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |
