Hello world; I've got a bunch of M.2 Type A/E Wifi 6e cards from Emwicon (WMX7205) and Sparklan (WNFQ-268AXI(BT)) wirth Qualcomm WCN6856 chips. I'd like to use them on DFI AL553 3.5" SBCs with ATOM E3940 processor (https://www.dfi.com/de/product/index/1409), but I was hit by the error message "failed to get 32 MSI vectors, only -28 available". Ok, it seems that the Atom E3900 does not support VT-d. I managed to get these card working on standard PCs with i7 and i5 with active VT-d. However, when disabling VT-d in the BIOS I get the same behaviour as on the Atom boards. I tried the single MSI patch on https://wireless.wiki.kernel.org/en/users/drivers/ath11k but failed to apply these patches to an 5.15.0 kernel from Debian backports. Are there - patches for 5.15 or 5.16? - patched drivers for 5.15 or 5.16? - information where to find a matching driver source on which the patches will apply? Best Regards Frank-Christian Kruegel
