I don't think that netdde should mess with all devices disabling and reenabling the BAR while probing devices.
On Thu, Oct 29, 2026 at 9:45 PM Olivier Valentin <[email protected]> wrote: > > > > Le 29 octobre 2026 21:28:14 GMT+01:00, Michael Kelly <[email protected]> > a écrit : > > >>>> Recently I got bitten by the DDE driver, which was disabling the BAR of > >>>> my Qemu device at initialization. I suspect that the ddekit PCI code > >>>> considers that 64bits is not supported. > > >That is the case here too. Disabling the network interface allows the > >logical disk access to succeed in the 3G system. > > Yay ! 🥳 > > >I'll see if portions of a modern version of Linux pci/probe.c can be merged > >or if there is an alternative simpler workaround (assuming that the above is > >the cause, which does seem likely). > > Last week, when I looked into this code, it seemed that the test for 64bits > BARs support depends on the size of a pointer type. So I was suspecting that > ddekit was not configured correctly in the case of x86_64 (from the top of my > head, it looks like CONFIG_...PCI_64BITS). > But I could not find a single place where this config can be set. > > As you say, maybe it was fixed in a later version ? > > -- > Olivier
