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.

       -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 configura-
	      tion.

       -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)