On Sun, Jun 08, 2014 at 10:34:30PM +0300, Or Gerlitz wrote: > What it does is the following: > > 1. kernel rdma driver tells a user space daemon they want to reserve > (claim) the combination of IP address X and TCP port Y for the sake of > RDMA connections > > 2. user space daemon opens a socket and binds to X:Y > > Specifically, down the road, more use cases, not only the current > iWARP case may pop up.
This really seems horrible, using user space to circumvent the kernel stack because kernel maintainers don't want this kind of integration is not going to make people very happy. IIRC the patch set that tried to do this directly in the kernel was NAK'd, adding a userspace round trip doesn't really change anything. The message from netdev has, IMHO, always been pretty clear - offload can live in it's own little side world but cannot appear to the user to be integrated to the main stack (because it isn't). Jason -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
