On Thu, 4 Feb 2021 09:40:00 +0100 Loic Poulain wrote: > When device side MTU is larger than host side MTU, the packets > (typically rmnet packets) are split over multiple MHI transfers. > In that case, fragments must be re-aggregated to recover the packet > before forwarding to upper layer. > > A fragmented packet result in -EOVERFLOW MHI transaction status for > each of its fragments, except the final one. Such transfer was > previously considered as error and fragments were simply dropped. > > This change adds re-aggregation mechanism using skb chaining, via > skb frag_list. > > A warning (once) is printed since this behavior usually comes from > a misconfiguration of the device (e.g. modem MTU). > > Signed-off-by: Loic Poulain <loic.poul...@linaro.org>
Applied, thanks, but I had to invert the order of the patches. Otherwise during bisection someone may hit a point in the tree where mhi_net generates fragmented skbs but rmnet does not handle them.
