diff options
| author | Parav Pandit <parav@mellanox.com> | 2019-02-26 14:01:45 +0200 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@mellanox.com> | 2019-03-28 14:52:02 -0300 |
| commit | a56bc45b27b92954d99c811cb047e789b6cc5a81 (patch) | |
| tree | a7b5a6460d73c0479b96b36076d12828496a1ad9 | |
| parent | 5417783eabb2c66738394149123fbcdd0cca0f51 (diff) | |
RDMA/core: Add module param to disable device sharing among net ns
Add module parameter to change a sharing mode of ib_core early in the
boot process. This parameter helps to those systems where modern up
to date rdma tool (iproute2) package may not be available during
kernel upgrade cycle.
Signed-off-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
| -rw-r--r-- | drivers/infiniband/core/device.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/infiniband/core/device.c b/drivers/infiniband/core/device.c index 0735f8b8167e..ebc0b0e58eca 100644 --- a/drivers/infiniband/core/device.c +++ b/drivers/infiniband/core/device.c @@ -127,6 +127,10 @@ static DEFINE_XARRAY_FLAGS(rdma_nets, XA_FLAGS_ALLOC); */ static DECLARE_RWSEM(rdma_nets_rwsem); +static bool ib_devices_shared_netns = true; +module_param_named(netns_mode, ib_devices_shared_netns, bool, 0444); +MODULE_PARM_DESC(netns_mode, + "Share device among net namespaces; default=1 (shared)"); /* * xarray has this behavior where it won't iterate over NULL values stored in * allocated arrays. So we need our own iterator to see all values stored in @@ -736,6 +740,9 @@ static int add_one_compat_dev(struct ib_device *device, struct ib_core_device *cdev; int ret; + if (!ib_devices_shared_netns) + return 0; + /* * Create and add compat device in all namespaces other than where it * is currently bound to. |