rdma_listen
Listens to the incoming connection requests.
Syntax
#include <rdma/rdma_cma.h>
int rdma_listen(struct rdma_cm_id *id, int backlog);Description
The rdma_listen function initiates a listen operation for the incoming connection requests. The listen operation is restricted to the locally bound source addresses.
Notes:
- You must have bound and associated the
rdma_cm_ididentifier with a local address by the rdma_bind_addr operation before the rdma_listen operation. - If the
rdma_cm_ididentifier is bound to a specific IP address, the listen operation is restricted to that address and the associated RDMA device. - If the
rdma_cm_ididentifier is bound to an RDMA port number, the listen operation occurs across all RDMA devices.
Parameters
| Item | Description |
|---|---|
| id | Specifies the RDMA identifier. |
| backlog | Specifies the backlog of incoming connection requests. |
Return Values
The rdma_listen function returns 0 on success, or -1 on error. If an error occurs, errno indicates the reason for failure.