Query: umad_recv
OS: centos
Section: 3
Format: Original Unix Latex Style Formatted with HTML and a Horizontal Scroll Bar
UMAD_RECV(3) OpenIB Programmer's Manual UMAD_RECV(3)NAMEumad_recv - receive umadSYNOPSIS#include <infiniband/umad.h> int umad_recv(int portid, void *umad, int *length, int timeout_ms);DESCRIPTIONumad_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 VALUEumad_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 fulfilledSEE ALSOumad_poll(3)AUTHORHal Rosenstock <halr@voltaire.com> OpenIB May 11, 2007 UMAD_RECV(3)
Related Man Pages |
---|
umad_release_port(3) - centos |
umad_release_ca(3) - centos |
umad_set_grh(3) - centos |
umad_register_oui(3) - debian |
umad_set_grh(3) - debian |
Similar Topics in the Unix Linux Community |
---|
Importance of LS length in DB exchange start packet (OSPF protocol)? |