On 6/11/2015 7:52 PM, Hefty, Sean wrote: >>> I agree that the node type enum isn't particularly useful and should be >> retired. >> >> Are you referring to kernel space or user space or both ? > > Short term, kernel space. User space needs to keep something around for backwards compatibility. > > But the in tree code will never expose this value up. > >>> But even if we do, I'm not sure this is the correct approach. I don't >> know this for a fact, >>> but it seems more likely that someone would embed Linux on an IB switch >> than they would plug an IB switch >>> into a Linux based system. The code is designed around the latter. >> Making this a system wide setting might simplify the code and optimize the >> code paths. >> >> I think we need to discuss how user space would be addressed. > > This is an issue with out of tree drivers. We're having to guess what things might be doing. > Are all devices being exposed up as a 'switch', or is there ever a case where there's a 'switch' device > and an HCA device being reported together, or (highly unlikely) a switch device and an RNIC? Gateways are comprised of switch + HCA devices. There are other more complex cases of multiple devices. > If the real use case is to embed Linux on a switch, then we could look at making that a system wide setting, > rather than per device. This could clean up the kernel without impacting the uABI. I think that system wide is too limiting and it needs to be on a per device basis. -- 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
