On Sat, 19 Dec 2020 10:30:57 -0500 Jamal Hadi Salim <jhs@xxxxxxxxxxxx> wrote: > On 2020-12-19 9:53 a.m., Shay Agroskin wrote: > > > > Lorenzo Bianconi <lorenzo.bianconi@xxxxxxxxxx> writes: > > > > >> for the moment I do not know if this area is used for other purposes. > >> Do you think there are other use-cases for it? Yes, all the same use-cases as SKB have. I wanted to keep this the same as skb_shared_info, but Lorenzo choose to take John's advice and it going in this direction (which is fine, we can always change and adjust this later). > Sorry to interject: > Does it make sense to use it to store arbitrary metadata or a scratchpad > in this space? Something equivalent to skb->cb which is lacking in > XDP. Well, XDP have the data_meta area. But difficult to rely on because a lot of driver don't implement it. And Saeed and I plan to use this area and populate it with driver info from RX-descriptor. -- Best regards, Jesper Dangaard Brouer MSc.CS, Principal Kernel Engineer at Red Hat LinkedIn: http://www.linkedin.com/in/brouer
