Kalle Valo <kvalo@xxxxxxxxxxxxxx> writes: > Thomas Krause <thomaskrause@xxxxxxxxx> writes: > >> Am 10.11.20 um 09:33 schrieb Kalle Valo: >>> >>>> I was told that on Dell XPS 15 (with a working QCA6390 setup) there's a >>>> separate "Virtualisation" setting in BIOS. See if you have that and try >>>> enabling it. >>> I was informed about another setting to test: try disabling "Enable >>> Secure Boot" in the BIOS. I don't know yet why it would help, but that's >>> what few people have recommended. >>> >>> Please let me know how it goes. >>> >> I have two options under "Virtualization" in the BIOS: "Enable Intel >> Virtualization Technology (VT)" and "VT for Direct I/O". Both were >> enabled. Secure boot was also turned off. BIOS version is also at the >> most current version 1.1.1. > > This is good to know, thanks for testing. Now we have explored all > possible BIOS options as I know of. > >> Because of the dmesg errors Thomas Gleixner mentioned, I assume it >> would be best to contact Dell directly (even if I'm not sure if and >> how fast they will respond). > > I have asked our people to report this to Dell, but no response yet. > >> If the driver would manage to work with only 1 vector, I assume this >> would also make it work on my configuration, even with possible >> performance hits. > > This is the workaround we are working on at the moment. There's now a > proof of concept patch but I'm not certain if it will work. I'll post it > as soon as I can and will provide the link in this thread. The proof of concept patch for v5.10-rc2 is here: https://patchwork.kernel.org/project/linux-wireless/patch/1605121102-14352-1-git-send-email-kvalo@xxxxxxxxxxxxxx/ Hopefully it makes it possible to boot the firmware now. But this is a quick hack and most likely buggy, so keep your expectations low :) In case there are these warnings during firmware initialisation: ath11k_pci 0000:05:00.0: qmi failed memory request, err = -110 ath11k_pci 0000:05:00.0: qmi failed to respond fw mem req:-110 Try reverting this commit: 7fef431be9c9 mm/page_alloc: place pages to tail in __free_pages_core() That's another issue which is debugged here: http://lists.infradead.org/pipermail/ath11k/2020-November/000550.html -- https://patchwork.kernel.org/project/linux-wireless/list/ https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
