I am trying to check working of RDMA with SoftRoCE. When I try to run rping it sends me “cma event RDMA_CM_EVENT_UNREACHABLE, error -110”
what can be the possible scenarios where this error can occur.
More details -
Server
rping -sd -a 10.213.64.106 -p 1234
port 1234
created cm_id 0x6090c0
rdma_bind_addr successful
rdma_listen
Client
rping -cd -a 10.213.41.106 -p 1234
port 1234
created cm_id 0x6090c0
cma_event type RDMA_CM_EVENT_ADDR_RESOLVED cma_id 0x6090c0 (parent)
cma_event type RDMA_CM_EVENT_ROUTE_RESOLVED cma_id 0x6090c0 (parent)
rdma_resolve_addr - rdma_resolve_route successful
created pd 0x60b630
created channel 0x60b650
created cq 0x60b670
created qp 0x60b720
rping_setup_buffers called on cb 0x606010
allocated & registered buffers…
cq_thread started.
cma_event type RDMA_CM_EVENT_UNREACHABLE cma_id 0x6090c0 (parent)
cma event RDMA_CM_EVENT_UNREACHABLE, error -110
Can you ping to the peer using linux ping (not the RDMA ping)?
What is the command line you used on both peers?
rxe_cfg start
IBOE V2
Name Link Driver Speed NMTU IPv4_addr RDEV RMTU
p4p1 yes r8169 1500 10.213.64.106 rxe0 1024 (3)
wlan0 no rtl8192cu 1500
ping 10.213.64.106
PING 10.213.64.106 (10.213.64.106) 56(84) bytes of data.
64 bytes from 10.213.64.106: icmp_seq=1 ttl=64 time=0.024 ms
I am able to ping the machine using linux ping