On Tue, 7 Nov 2023 14:23:20 -0800 Stanislav Fomichev wrote:

Can we mark a socket as devmem-only? Do we have any use-case for those hybrid setups? Or, let me put it that way: do we expect API callers to handle both linear and non-linear cases correctly? As a consumer of the previous versions of these apis internally, I find all those corner cases confusing :-( Hence trying to understand whether we can make it a bit more rigid and properly defined upstream.

FWIW I'd also prefer to allow mixing. "Some NICs" can decide HDS very flexibly, incl. landing full jumbo frames into the "headers".

There's no sender API today to signal how to mark the data for selective landing, but if Mina already has the rx side written to allow that...