On Wed, Sep 07, 2022 at 09:57:43AM -0400, Tom Talpey wrote: > You can test it easily, just load siw on a laptop without any > other RDMA provider. The ib_uverbs module will not be loaded, > and the siw provider won't be seen, rping -s will run but peers > cannot connect for example. Perhaps there is something funky with rping, it works fine in simpler cases: $ rdma link show link siw0/1 state ACTIVE physical_state LINK_UP netdev enp0s31f6 $ sudo rmmod ib_uverbs $ build/bin/ibv_devinfo hca_id: siw0 transport: iWARP (1) fw_ver: 0.0.0 node_guid: 7686:e2ff:fe28:63fc sys_image_guid: 7486:e228:63fc:0000 vendor_id: 0x626d74 vendor_part_id: 1 hw_ver: 0x0 phys_port_cnt: 1 port: 1 state: PORT_ACTIVE (4) max_mtu: 1024 (3) active_mtu: 1024 (3) sm_lid: 0 port_lid: 0 port_lmc: 0x00 link_layer: Ethernet $ lsmod | grep -i uverb ib_uverbs 163840 0 ib_core 393216 2 ib_uverbs,siw Jason