On Wed, Nov 4, 2020 at 4:00 PM Mika Westerberg <mika.westerberg@xxxxxxxxxxxxxxx> wrote: > > Hi all, > > This series adds a new Thunderbolt service driver that can be used on > manufacturing floor to test that each Thunderbolt/USB4 port is functional. > It can be done either using a special loopback dongle that has RX and TX > lanes crossed, or by connecting a cable back to the host (for those who > don't have these dongles). > > This takes advantage of the existing XDomain protocol and creates XDomain > devices for the loops back to the host where the DMA traffic test driver > can bind to. > > The DMA traffic test driver creates a tunnel through the fabric and then > sends and receives data frames over the tunnel checking for different > errors. For the whole series, Acked-by: Yehezkel Bernat <YehezkelShB@xxxxxxxxx>