Provided by: librdmacm-dev_1.0.10-1_i386 bug

NAME

       rdma_join_multicast - Joins a multicast group.

SYNOPSIS

       #include <rdma/rdma_cma.h>

       int  rdma_join_multicast (struct rdma_cm_id *id, struct sockaddr *addr,
       void *context);

ARGUMENTS

       id          Communication identifier associated with the request.

       addr        Multicast address identifying the group to join.

       context     User-defined context associated with the join request.

DESCRIPTION

       Joins a multicast group and attaches an associated QP to the group.

NOTES

       Before joining a multicast group, the rdma_cm_id must be  bound  to  an
       RDMA  device  by  calling  rdma_bind_addr or rdma_resolve_addr.  Use of
       rdma_resolve_addr requires the local  routing  tables  to  resolve  the
       multicast  address  to an RDMA device, unless a specific source address
       is provided.  The user must  call  rdma_leave_multicast  to  leave  the
       multicast  group  and  release any multicast resources.  After the join
       operation completes, any associated QP is automatically attached to the
       multicast  group,  and the join context is returned to the user through
       the private_data field in the rdma_cm_event.

SEE ALSO

       rdma_leave_multicast(3),    rdma_bind_addr(3),    rdma_resolve_addr(3),
       rdma_create_qp(3), rdma_get_cm_event(3)