On Wed, Sep 07, 2022 at 11:24:19AM -0400, Tom Talpey wrote: > On 9/7/2022 10:06 AM, Jason Gunthorpe wrote: > > 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 > > > That's odd - your ib_uverbs "Used by" list is empty. Did some > module dependency cache force-load it? On my system, it doesn't > load at all. With the proposed siw softdep, it does. As I said, modern rdma-core auto-loads it on its own. There is no module dependency causing it to load. Jason
