On Thu, Feb 24, 2022 at 05:00:30PM +0100, Marcel Menzel wrote: > +linux-pci > > Am 24.02.2022 um 14:52 schrieb Marcel Menzel: > > Am 24.02.2022 um 14:09 schrieb Marcel Menzel: > > > Hello, > > > > > > When upgrading from kernel 5.16.2 to a newer version (tried 5.16.3 > > > and 5.16.10 with unchanged .config), the Kernel fails to detect both > > > my installed mPCIe WiFi cards in my Turris Omnia (newer version, > > > silver case, GPIO pins installed again). > > > I have two Mediatek MT7915 based cards installed. I also tried with > > > one Atheros at9k and one ath10k based card, yielding the same > > > result. On a Kernel version newer than 5.16.2, all cards aren't > > > getting recognized correctly. > > > > > > Before 5.16.3 I also had to disable PCIe ASPM via boot aragument, > > > otherwise the WiFi drivers would complain about weird device > > > behaviors and failing to initialize them, but re-enabling it does > > > not yield any different results. Please try this commit, which is headed to mainline today: https://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci.git/commit/?h=for-linus&id=c49ae619905eebd3f54598a84e4cd2bd58ba8fe9 This commit should fix the PCI enumeration problem. If you still have to disable ASPM, that sounds like a separate problem that we should also try to debug. Bjorn
