diff options
| author |   Matan Barak <matanb@mellanox.com> | 2015-12-23 14:56:55 +0200 |
|---|---|---|
| committer |   Doug Ledford <dledford@redhat.com> | 2015-12-23 10:39:52 -0500 |
| commit | 045959db65c67d7189dc89ecddb5fa10aafa449d (patch) | |
| tree | 6b29c2d20fa2a8eb119f90221c04762c7ef75f2d /Documentation | |
| parent | IB/rdma_cm: Add wrapper for cma reference count (diff) | |
| download | linux-dev-045959db65c67d7189dc89ecddb5fa10aafa449d.tar.xz linux-dev-045959db65c67d7189dc89ecddb5fa10aafa449d.zip | |
IB/cma: Add configfs for rdma_cm
Users would like to control the behaviour of rdma_cm.
For example, old applications which don't set the
required RoCE gid type could be executed on RoCE V2
network types. In order to support this configuration,
we implement a configfs for rdma_cm.
In order to use the configfs, one needs to mount it and
mkdir <IB device name> inside rdma_cm directory.
The patch adds support for a single configuration file,
default_roce_mode. The mode can either be "IB/RoCE v1" or
"RoCE v2".
Signed-off-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/ABI/testing/configfs-rdma_cm | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/configfs-rdma_cm b/Documentation/ABI/testing/configfs-rdma_cm new file mode 100644 index 000000000000..5c389aaf5291 --- /dev/null +++ b/Documentation/ABI/testing/configfs-rdma_cm @@ -0,0 +1,22 @@ +What: /config/rdma_cm +Date: November 29, 2015 +KernelVersion: 4.4.0 +Description: Interface is used to configure RDMA-cable HCAs in respect to + RDMA-CM attributes. + + Attributes are visible only when configfs is mounted. To mount + configfs in /config directory use: + # mount -t configfs none /config/ + + In order to set parameters related to a specific HCA, a directory + for this HCA has to be created: + mkdir -p /config/rdma_cm/<hca> + + +What: /config/rdma_cm/<hca>/ports/<port-num>/default_roce_mode +Date: November 29, 2015 +KernelVersion: 4.4.0 +Description: RDMA-CM based connections from HCA <hca> at port <port-num> + will be initiated with this RoCE type as default. + The possible RoCE types are either "IB/RoCE v1" or "RoCE v2". + This parameter has RW access. |