Control: tag -1 moreinfo On Wed, 2017-01-25 at 00:00 +0100, Andrea Zuccherelli wrote: > Package: src:linux > Version: 4.8.15-2 > Severity: normal > Tags: upstream > > Dear Maintainer, > > The Ethernet controller RTL8105e in my Toshiba C660 notebook had a very > strange behaviour. > It worked once but not after, being not even seen by BIOS for LAN boot on > next reboot. > A hardware issue?
It sounds like it. But all hardware has bugs, and drivers should work
around those bugs if possible.
[...]
> Searching for a solution I found that only a PCI reset, after unloading the
> driver could help:
>
> root@zbox:~# echo 1 >/sys/bus/pci/devices/0000:01:00.0/reset
>
> So I added this to my "post-down" interface configuration.
>
> Obviously this is just a workaround: so what is happening here?
> Is my hardware not resetting the PCI bus on an ACPI poweroff event?
> Should the kernel or driver do it?
> Where is the best place to force a device PCI reset so that no problem could
> arise on hibernate/suspend?
In the driver. :-)
But first, please test without these kernel parameters:
pcie_aspm=force "acpi_osi=Windows 2009" "acpi_os_name=Windows 2009"
Ben.
--
Ben Hutchings
Design a system any fool can use, and only a fool will want to use it.
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