1UDADDY(1)                          librdmacm                         UDADDY(1)
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NAME

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

9       udaddy [-s server_address] [-b bind_address] [-c connections]
10                 [-C message_count] [-S message_size] [-p port_space]
11       udaddy -s server_address [-b bind_address] [-c connections]
12                 [-C message_count] [-S message_size] [-t tos] [-p port_space]
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DESCRIPTION

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

20       -s server_address
21              The  network  name  or IP address of the server system listening
22              for communication.  The used name or address must route over  an
23              RDMA device.  This option must be specified by the client.
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25       -b bind_address
26              The local network address to bind to.
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28       -c connections
29              The  number  of  communication  paths  to  establish between the
30              client and server.  The test uses unreliable datagram communica‐
31              tion, so no actual connections are formed.  (default 1)
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33       -C message_count
34              The  number  of  messages  to  transfer  over  each  connection.
35              (default 10)
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37       -S message_size
38              The size of each message transferred, in bytes.  This value must
39              be  smaller than the MTU of the underlying RDMA transport, or an
40              error will occur.  (default 100)
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42       -t tos Indicates the type of service used for the communication.   Type
43              of  service is implementation dependent based on subnet configu‐
44              ration.
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46       -p port_space
47              The port space of the datagram communication.  May be either the
48              RDMA  UDP  (0x0111)  or  IPoIB  (0x0002)  port  space.  (default
49              RDMA_PS_UDP)
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NOTES

52       Basic usage is to start udaddy on a server system, then run  udaddy  -s
53       server_name on a client system.
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55       Because  this  test maps RDMA resources to userspace, users must ensure
56       that they have available system resources  and  permissions.   See  the
57       libibverbs README file for additional details.
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SEE ALSO

60       rdma_cm(7), ucmatose(1), mckey(1), rping(1)
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64librdmacm                         2007-05-15                         UDADDY(1)
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