umad_recv(3) [centos man page]

UMAD_RECV(3)						    OpenIB Programmer's Manual						      UMAD_RECV(3)

NAME

       umad_recv - receive umad

SYNOPSIS

       #include <infiniband/umad.h>

       int umad_recv(int portid, void *umad, int *length, int timeout_ms);

DESCRIPTION

       umad_recv() waits up to timeout_ms milliseconds for a packet to be received from the port specified by portid.  The packet is copied to the
       umad buffer if there is sufficient room and the received length is indicated.  If the buffer is not large enough, the size of the umad buf-
       fer  needed  is	returned  in length.  A negative timeout_ms makes the function block until a packet is received. A timeout_ms parameter of
       zero indicates a non blocking read.

       Note length is a pointer to the length of the data portion of the umad buffer.  This means that umad  must  point  to  a  buffer  at  least
       umad_size() + *length bytes long.

       Note also that *length must be >= 256 bytes.

RETURN VALUE

       umad_recv() returns non negative receiving agentid on success, and a negative value on error as follows:
	-EINVAL      invalid port handle or agentid or *length is less than the minimum supported
	-EIO	     receive operation failed
	-EWOULDBLOCK non blocking read can't be fulfilled

SEE ALSO

       umad_poll(3)

AUTHOR

       Hal Rosenstock <halr@voltaire.com>

OpenIB								   May 11, 2007 						      UMAD_RECV(3)

Check Out this Related Man Page

UMAD_REGISTER_OUI(3)					    OpenIB Programmer's Manual					      UMAD_REGISTER_OUI(3)

NAME

       umad_register_oui - register the specified class in vendor range 2 for port

SYNOPSIS

       #include <infiniband/umad.h>

       int umad_register_oui(int portid, int mgmt_class, uint8_t rmpp_version, uint8_t oui[3], uint32_t method_mask[4]);

DESCRIPTION

       umad_register_oui()  registers the specified class in vendor range 2, the specified oui, and whether RMPP is being used for the port speci-
       fied by the portid handle. If method_mask array is provided, the caller is registered as a replier (server) for the  methods  having  their
       corresponding  bit  on  in  the	method_mask.   If  method_mask is NULL, the caller is registered as a MAD client, meaning that it can only
       receive replies on MADs that it sent (solicited MADs).

RETURN VALUE

       umad_register() returns non-negative agent id number on success, and a negative value on error as follows:
	-EINVAL invalid port handle or class is not in the vendor class 2 range
	-EPERM	registration failed

SEE ALSO

       umad_register(3), umad_unregister(3)

AUTHOR

       Hal Rosenstock <halr@voltaire.com>

OpenIB								   May 17, 2007 					      UMAD_REGISTER_OUI(3)

Linux and UNIX Man Pages

umad_recv(3) [centos man page]

Check Out this Related Man Page