1 files changed, 11 insertions, 2 deletions

diff --git a/include/rdma/rdma_user_cm.h b/include/rdma/rdma_user_cm.h
index 9572ab8eeac1..f632b0c007c9 100644
--- a/include/rdma/rdma_user_cm.h
+++ b/include/rdma/rdma_user_cm.h
@@ -38,7 +38,7 @@
 #include <rdma/ib_user_verbs.h>
 #include <rdma/ib_user_sa.h>
 
-#define RDMA_USER_CM_ABI_VERSION        3
+#define RDMA_USER_CM_ABI_VERSION        4
 
 #define RDMA_MAX_PRIVATE_DATA           256
 
@@ -58,7 +58,9 @@ enum {
         RDMA_USER_CM_CMD_GET_EVENT,
         RDMA_USER_CM_CMD_GET_OPTION,
         RDMA_USER_CM_CMD_SET_OPTION,
-        RDMA_USER_CM_CMD_NOTIFY
+        RDMA_USER_CM_CMD_NOTIFY,
+        RDMA_USER_CM_CMD_JOIN_MCAST,
+        RDMA_USER_CM_CMD_LEAVE_MCAST
 };
 
 /*
@@ -188,6 +190,13 @@ struct rdma_ucm_notify {
         __u32 event;
 };
 
+struct rdma_ucm_join_mcast {
+        __u64 response;         /* rdma_ucm_create_id_resp */
+        __u64 uid;
+        struct sockaddr_in6 addr;
+        __u32 id;
+};
+
 struct rdma_ucm_get_event {
         __u64 response;
 };