Demonstrations of rdmaucma, the Linux eBPF/bcc version.


This program traces RDMA UCMA(Userspace Connection Manager Access) events,
then help us to analyze issues on RDMA CM.

Example of rdmaucma:
# ./rdmaucma
Tracing RDMA Userspace Connection Manager Access event... Hit Ctrl-C to end.
Timestamp Event            Family Local                                         Remote
09:47:49  connect request  IPv6   fdcc:abcd:15:479::165:6379                    fdcc:abcd:15:479::166:61293
09:47:49  established      IPv6   fdcc:abcd:15:479::165:6379                    fdcc:abcd:15:479::166:61293
09:47:51  disconnected     IPv6   fdcc:abcd:15:479::165:6379                    fdcc:abcd:15:479::166:61293
09:47:52  connect request  IPv6   fdcc:abcd:15:479::165:6379                    fdcc:abcd:15:479::166:33402
09:47:52  established      IPv6   fdcc:abcd:15:479::165:6379                    fdcc:abcd:15:479::166:33402
09:47:53  disconnected     IPv6   fdcc:abcd:15:479::165:6379                    fdcc:abcd:15:479::166:33402
09:48:06  connect request  IPv4   192.168.122.165:6379                          192.168.122.166:41498
09:48:06  established      IPv4   192.168.122.165:6379                          192.168.122.166:41498
09:48:10  disconnected     IPv4   192.168.122.165:6379                          192.168.122.166:41498
09:48:11  connect request  IPv4   192.168.122.165:6379                          192.168.122.166:19047
09:48:11  established      IPv4   192.168.122.165:6379                          192.168.122.166:19047
09:48:11  disconnected     IPv4   192.168.122.165:6379                          192.168.122.166:19047

Full USAGE:

# ./rdmaucma -h
usage: rdmaucma [-h] [-D]

Trace RDMA Userspace Connection Manager Access Event

optional arguments:
  -h, --help   show this help message and exit
  -D, --debug  print BPF program before starting (for debugging purposes)

examples:
    ./rdmaucma            # Trace all RDMA Userspace Connection Manager Access Event