driver: support multiqueue TX
Idea for TX: If we implement TX DMA as multiple FIFOs, the SocketCAN driver could benefit from this. CAN in Linux (will shortly) support multiqueue TX (and RX). The patch mentions that it could be supported even now (without DMA) if the HW supports soft abort (which our core does).
This is, again, a pure Wishlist issue, mainly here to keep track of it.
Patches: https://lore.kernel.org/patchwork/cover/913525/ (see Related for more code). The relevant patch is merged in v4.19-rc1.