[IB] uverbs: Add device-specific ABI version attribute

Add abi_version attribute to uverbs class devices to allow for
ABI versioning of device-specific interfaces.

Signed-off-by: Roland Dreier <rolandd@cisco.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
index e6f4c9e55df7..d13f25a78192 100644
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -951,6 +951,8 @@ struct ib_device {
                 IB_DEV_UNREGISTERED
         }                            reg_state;
 
+        int                          uverbs_abi_ver;
+
         u8                           node_type;
         u8                           phys_port_cnt;
 };