> > On Fri, Jul 28, 2017 at 08:51:28AM -0500, Steve Wise wrote: > > > Bringing down the NIC interfaces doesn't totally stop the adapter nor destroy > > the queues needed for RDMA. It does bring the links down on the ethernet > > interfaces though. So it behaves like I thought. I tested this by running an > > rping, and while it was pushing rdma traffic, I did 'ifconfig ethX 0.0.0.0 down' > > on the interface in use. The data flow stopped (and the iWARP/TCP stack started > > retransmitting). I then brought the link back up, and after a few seconds the > > rping traffic continued on. > > So, why defer creating queues until the first ifup? > > I can understand a nic driver that frees all memory when down (that is > fairly common), but this arrangement seems really strange.. Maybe I'm mistaken about the need to wait for ifup to register the ULDs. I do see the same queues are actually available after cxgb4 loads and before an ifup. So maybe I can change the uld activation to earlier. -- 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
