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.\" -*- nroff -*- .\" .TH UMAD_SEND 3 "May 11, 2007" "OpenIB" "OpenIB Programmer\'s Manual" .SH "NAME" umad_send \- send umad .SH "SYNOPSIS" .nf .B #include <infiniband/umad.h> .sp .BI "int umad_send(int " "portid" ", int " "agentid" ", void " "*umad" ", int " "timeout_ms" ", int " "retries"); .fi .SH "DESCRIPTION" .B umad_send() sends the specified .I umad\fR buffer from the port specified by .I portid\fR, and using the agent specified by .I agentid\fR. .I timeout_ms\fR controls the solicited MADs behavior as follows: zero value means not solicited. Positive value makes kernel indicate timeout in milliseconds. If reply is not received within the specified value, the original buffer is returned in the read channel with the status field set (to non zero). Negative .I timeout_ms\fR makes kernel wait forever for the reply. .I retries\fR indicates the number of times the MAD will be retried before giving up. .SH "RETURN VALUE" .B umad_send() returns 0 on success, and a negative value on error as follows: -EINVAL invalid port handle or agentid -EIO send operation failed .SH "AUTHOR" .TP Hal Rosenstock <halr@voltaire.com>