On Mon, 1 Feb 2021 at 19:17, Dan Williams <d...@redhat.com> wrote: > > On Fri, 2021-01-29 at 18:21 -0800, Jakub Kicinski wrote: > > On Wed, 27 Jan 2021 18:01:17 +0100 Loic Poulain wrote: > > > MBIM has initially been specified by USB-IF for transporting data > > > (IP) > > > between a modem and a host over USB. However some modern modems > > > also > > > support MBIM over PCIe (via MHI). In the same way as QMAP(rmnet), > > > it > > > allows to aggregate IP packets and to perform context multiplexing. > > > > > > This change adds minimal MBIM support to MHI, allowing to support > > > MBIM > > > only modems. MBIM being based on USB NCM, it reuses some helpers > > > from > > > the USB stack, but the cdc-mbim driver is too USB coupled to be > > > reused. > > > > > > At some point it would be interesting to move on a factorized > > > solution, > > > having a generic MBIM network lib or dedicated MBIM netlink virtual > > > interface support. > > What would a kernel-side MBIM netlink interface do? Just data-plane > stuff (like channel setup to create new netdevs), or are you thinking > about control-plane stuff like APN definition, radio scans, etc?
Just the data-plane (mbim encoding/decoding/muxing). Loic
