On Mon, Oct 09, 2017 at 08:45:41AM -0700, Tom Herbert wrote: > On Mon, Oct 9, 2017 at 1:05 AM, Simon Horman <simon.hor...@netronome.com> > wrote: > > On Fri, Oct 06, 2017 at 08:34:59AM -0700, Tom Herbert wrote: > >> Simon, > >> > >> Maybe a bit off topic, but I had the impression netronome would > >> support BPF so that filters could be programmed for arbitrary > >> protocols and fields. Is that true? If so, what is the relationship > >> between that functionality and these patches? > > > > Hi Tom, > > > > you are correct in thinking that Netronome is supporting BPF offload > > in its nfp driver. That support continues to be enhanced and supported. > > > > This patch-set relates to a different set of functionality, offload of the > > TC flower classifier. At this point there is no relationship between the > > two sets of functionality and they cannot be used at the same time; > > different firmware images are required and the driver initiates itself > > according to the firmware loaded. > > > > In future it may be possible to use both BPF and TC flower offloads at the > > same time but that is not the case at this time. > > > > Does that answer your question? > > Yes... A couple of follow up questions. If someone uses tc-bpf would > that be offloaded to nfp? Is there anything that TC flower offloads > can do that the BPF solution can't do?
I believe that the NFP driver also offloads tc-bpf. Jakub can correct me if I am wrong. I would expect that in general one can write BPF programs to offload use-cases cases covered by the TC flower offloads.
