On Mon, 2020-12-07 at 22:37 +0100, Maciej Fijalkowski wrote: > On Mon, Dec 07, 2020 at 01:15:00PM -0800, Alexander Duyck wrote: > > On Mon, Dec 7, 2020 at 8:36 AM Lorenzo Bianconi <lorenzo@xxxxxxxxxx > > > wrote: > > > Initialize multi-buffer bit (mb) to 0 in all XDP-capable drivers. > > > This is a preliminary patch to enable xdp multi-buffer support. > > > > > > Signed-off-by: Lorenzo Bianconi <lorenzo@xxxxxxxxxx> > > > > I'm really not a fan of this design. Having to update every driver > > in > > order to initialize a field that was fragmented is a pain. At a > > minimum it seems like it might be time to consider introducing some > > sort of initializer function for this so that you can update things > > in > > one central place the next time you have to add a new field instead > > of > > having to update every individual driver that supports XDP. > > Otherwise > > this isn't going to scale going forward. > > Also, a good example of why this might be bothering for us is a fact > that > in the meantime the dpaa driver got XDP support and this patch hasn't > been > updated to include mb setting in that driver. > something like init_xdp_buff(hard_start, headroom, len, frame_sz, rxq); would work for most of the drivers.
