UDADDY(1)                          librdmacm                         UDADDY(1)

NAME
       udaddy - RDMA CM datagram setup and simple ping-pong test.

SYNOPSIS
       udaddy [-s server_address] [-b bind_address] [-c connections]
                 [-C message_count] [-S message_size] [-p port_space]
       udaddy -s server_address [-b bind_address] [-c connections]
                 [-C message_count] [-S message_size] [-t tos] [-p port_space]

DESCRIPTION
       Establishes a set of unreliable RDMA datagram communication paths
       between two nodes using the librdmacm, optionally transfers datagrams
       between the nodes, then tears down the communication.

OPTIONS
       -s server_address
              The network name or IP address of the server system listening
              for communication.  The used name or address must route over an
              RDMA device.  This option must be specified by the client.

       -b bind_address
              The local network address to bind to.  To bind to any address
              with IPv6 use -b ::0 .

       -c connections
              The number of communication paths to establish between the
              client and server.  The test uses unreliable datagram
              communication, so no actual connections are formed.  (default 1)

       -C message_count
              The number of messages to transfer over each connection.
              (default 10)

       -S message_size
              The size of each message transferred, in bytes.  This value must
              be smaller than the MTU of the underlying RDMA transport, or an
              error will occur.  (default 100)

       -t tos Indicates the type of service used for the communication.  Type
              of service is implementation dependent based on subnet
              configuration.

       -p port_space
              The port space of the datagram communication.  May be either the
              RDMA UDP (0x0111) or IPoIB (0x0002) port space.  (default
              RDMA_PS_UDP)

NOTES
       Basic usage is to start udaddy on a server system, then run udaddy -s
       server_name on a client system.

       Because this test maps RDMA resources to userspace, users must ensure
       that they have available system resources and permissions.  See the
       libibverbs README file for additional details.

SEE ALSO
       rdma_cm(7), ucmatose(1), mckey(1), rping(1)

librdmacm                         2007-05-15                         UDADDY(1)