diff --git a/man7/cgroups.7 b/man7/cgroups.7
index 19a5061d7..a98ab18b9 100644
--- a/man7/cgroups.7
+++ b/man7/cgroups.7
@@ -354,6 +354,13 @@ in a cgroup (and its descendants).
 .IP
 Further information can be found in the kernel source file
 .IR Documentation/cgroup-v1/pids.txt .
+.TP
+.IR rdma " (since Linux 4.11; " \fBCONFIG_CGROUP_RDMA\fP )
+RDMA controller allows user to limit RDMA/IB specific resources that a given
+set of processes can use.
+.IP
+Further information can be found in the kernel source file
+.IR Documentation/cgroup-v1/rdma.txt .
 .\"
 .SS Creating cgroups and moving processes
 A cgroup filesystem initially contains a single root cgroup, '/',