On Fri, Jan 19, 2024 at 11:03 AM Esther Shimanovich <eshimanovich@xxxxxxxxxxxx> wrote: > Next week I'll try those devices in our inventory to see if I can find > another one with this bug. I'll get back to you on that! I ended up finding 11 additional models with this bug, from various manufacturers such as HP, Dell and Lenovo, that use the following thunderbolt controllers: JHL6240, JHL6340, JHL6540, JHL7540. So making this fix apply to all affected devices would make sense. On Mon, Jan 22, 2024 at 1:10 AM Mika Westerberg <mika.westerberg@xxxxxxxxxxxxxxx> wrote: > Yes, you are missing the 1. that it needs to be directly behind the PCIe > root or downstream port that is marked as ->external_facing, and the > fact that there can't be NHI's (that's the host controller with the IDs > I listed in 3.) anywhere else except starting the topology according the > USB4 spec (and the same applies to Thunderbolt 1-3). Thanks for the explanation. I'll write up a patch that implements this and takes into account all the feedback. Then I'll test it on multiple models, and then send it your way. Let me know if it makes sense to add you as a co-author. Very much appreciate your insights.
