rdma_write_cm_event(3)

rdma_write_cm_event3

Write an event into a cm.

Usage

#include <rdma/rdma_cma.h>

int rdma_write_cm_event(struct rdma_cm_id *id, enum rdma_cm_event_type event, int status, uint64_t arg);

Arguments

id The RDMA identifier associated with the reported rdma_cm_event.

event The communication event value to report. This should be set to RDMA_CM_EVENT_USER.

status The status value reported in the rdma_cm_event.

arg A user-specified value reported in the rdma_cm_event.

Overview

Write an event into a CM, with a status and an argument.

Return value

On success 0 is returned, on error -1 is returned, errno will be set to indicate the failure reason.

Notes

This call allows an application to write a user-defined event to the event channel associated with the specified rdma_cm_id. Valid user events are: RDMA_CM_EVENT_USER. Applications may use this for internal signaling purposes, such as waking a thread blocked on the event channel.

Author

Mark Zhang <<[email protected]>>

From rdma-core 65.0-1 in Arch Linux 2026-11-01. Parsed by carta from the page's man source.