On Mon, Jun 08, 2015 at 05:04:42PM -0400, Doug Ledford wrote: > On Mon, 2015-06-08 at 10:42 -0600, Jason Gunthorpe wrote: > > On Sun, Jun 07, 2015 at 01:36:11PM +0300, Erez Shitrit wrote: > > > > > > When switching between modes (datagram / connected) change the MTU > > > accordingly. > > > datagram mode up to 4K, connected mode up to (64K - 0x10). > > > > Is this a bug fix (describe the user visible impact)? Should it go to > > -stable? Add a Fixes: line? > > I'm not sure I would call it a bug. Setting the MTU to max > automatically is a policy decision more than anything else. Currently, > you have to enable connected mode, then set the MTU. Both initscripts > and NetworkManager do this for you on Red Hat, so the user sees no > difference here. I can't speak to other OSes. I'm OK with setting > connected mode MTU to max by default once we get the scatter/gather > support for IPoIB added. I was thinking about the other direction, what happens when you turn connected mode off? Jason -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
