Hi, i've been having iwm(4) instability on a X1 Gen3 issues since july (symptom/reproducer: unable to fetch base70.tgz, stalls after 100Mb and link goes down, ifconfig up/down/reassoc 'resolves' it - pkg_add -u also fails after a while, erratic ping, etc..) - tried forcing 2Ghz/5Ghz modes but that doesnt help on this laptop (forcing 5Ghz 'solves' a similar issue on a T470s but i dont remember the hw rev/model right now).
iwm0 at pci2 dev 0 function 0 "Intel AC 7265" rev 0x59, msi iwm0: hw rev 0x210, fw ver 17.3216344376.0 bisected kernels and found out that 6.9-current (GENERIC.MP) #120: Thu Jul 8 23:45:06 MDT 2021 was okay and 6.9-current (GENERIC.MP) #122: Fri Jul 9 16:29:05 MDT 2021 wasnt, which narrowed the regression around the switch to newer firmware version 29. (eg https://github.com/openbsd/src/commit/6a5f473d46d947cc596b5dbde0c8b074f6a98723) - on july 20 there's been https://github.com/openbsd/src/commit/b57370d64c440d7c4d5594a677fb066e3786fbfc too. so iwm-7265D-29 firmware doesnt work on this revision of hardware on this laptop (mpi@ has been seeing the same issues on a similar X1 gen3) but forcing the use of the older firmware 'solves' it. As stsp@ told me, the same hardware revision works in another laptop with the newer firmware... anyway, the diff below from stsp@ gives me a working iwm(4) on -current: Index: dev/pci/if_iwm.c =================================================================== RCS file: /cvs/src/sys/dev/pci/if_iwm.c,v retrieving revision 1.370 diff -u -r1.370 if_iwm.c --- dev/pci/if_iwm.c 2 Oct 2021 07:47:54 -0000 1.370 +++ dev/pci/if_iwm.c 3 Oct 2021 07:20:32 -0000 @@ -11085,11 +11085,7 @@ break; case PCI_PRODUCT_INTEL_WL_7265_1: case PCI_PRODUCT_INTEL_WL_7265_2: - if ((sc->sc_hw_rev & IWM_CSR_HW_REV_TYPE_MSK) == - IWM_CSR_HW_REV_TYPE_7265D) - sc->sc_fwname = "iwm-7265D-29"; - else - sc->sc_fwname = "iwm-7265-17"; + sc->sc_fwname = "iwm-7265-17"; sc->host_interrupt_operation_mode = 0; sc->sc_device_family = IWM_DEVICE_FAMILY_7000; sc->sc_fwdmasegsz = IWM_FWDMASEGSZ;
