summaryrefslogtreecommitdiff
path: root/Documentation/cgroup-v2.txt
diff options
context:
space:
mode:
authorParav Pandit <pandit.parav@gmail.com>2017-01-10 03:02:15 +0300
committerTejun Heo <tj@kernel.org>2017-01-10 19:14:27 +0300
commit9c1e67f941019907034d7e5584c891603cce2d8e (patch)
tree491a55fc28f4a571cef46a9dbc102994bab62626 /Documentation/cgroup-v2.txt
parent43579b5f2c79d747d8294bd233db41c954e2dc4a (diff)
downloadlinux-9c1e67f941019907034d7e5584c891603cce2d8e.tar.xz
rdmacg: Added documentation for rdmacg
Added documentation for v1 and v2 version describing high level design and usage examples on using rdma controller. Signed-off-by: Parav Pandit <pandit.parav@gmail.com> Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'Documentation/cgroup-v2.txt')
-rw-r--r--Documentation/cgroup-v2.txt38
1 files changed, 38 insertions, 0 deletions
diff --git a/Documentation/cgroup-v2.txt b/Documentation/cgroup-v2.txt
index 4cc07ce3b8dd..94350d79e169 100644
--- a/Documentation/cgroup-v2.txt
+++ b/Documentation/cgroup-v2.txt
@@ -47,6 +47,8 @@ CONTENTS
5-3. IO
5-3-1. IO Interface Files
5-3-2. Writeback
+ 5-4. RDMA
+ 5-4-1. RDMA Interface Files
6. Namespace
6-1. Basics
6-2. The Root and Views
@@ -1119,6 +1121,42 @@ writeback as follows.
vm.dirty[_background]_ratio.
+5-4. RDMA
+
+The "rdma" controller regulates the distribution and accounting of
+of RDMA resources.
+
+5-4-1. RDMA Interface Files
+
+ rdma.max
+ A readwrite nested-keyed file that exists for all the cgroups
+ except root that describes current configured resource limit
+ for a RDMA/IB device.
+
+ Lines are keyed by device name and are not ordered.
+ Each line contains space separated resource name and its configured
+ limit that can be distributed.
+
+ The following nested keys are defined.
+
+ hca_handle Maximum number of HCA Handles
+ hca_object Maximum number of HCA Objects
+
+ An example for mlx4 and ocrdma device follows.
+
+ mlx4_0 hca_handle=2 hca_object=2000
+ ocrdma1 hca_handle=3 hca_object=max
+
+ rdma.current
+ A read-only file that describes current resource usage.
+ It exists for all the cgroup except root.
+
+ An example for mlx4 and ocrdma device follows.
+
+ mlx4_0 hca_handle=1 hca_object=20
+ ocrdma1 hca_handle=1 hca_object=23
+
+
6. Namespace
6-1. Basics