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authorRoland Dreier <rolandd@cisco.com>2005-09-29 14:17:48 -0700
committerRoland Dreier <rolandd@cisco.com>2005-10-17 15:20:26 -0700
commit274c0891637c44ac71f3ac40be91b43c2318883a (patch)
treefc7d9f07ab7e663a8acb771069cb9f1053ca2302 /drivers/infiniband/hw/mthca/mthca_user.h
parenteb9d3cd5ce2828fbb99ed7270089ea152c8f64b3 (diff)
[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>
Diffstat (limited to 'drivers/infiniband/hw/mthca/mthca_user.h')
-rw-r--r--drivers/infiniband/hw/mthca/mthca_user.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/mthca/mthca_user.h b/drivers/infiniband/hw/mthca/mthca_user.h
index 41613ec8a04e..bb015c6494c4 100644
--- a/drivers/infiniband/hw/mthca/mthca_user.h
+++ b/drivers/infiniband/hw/mthca/mthca_user.h
@@ -38,6 +38,12 @@
#include <linux/types.h>
/*
+ * Increment this value if any changes that break userspace ABI
+ * compatibility are made.
+ */
+#define MTHCA_UVERBS_ABI_VERSION 1
+
+/*
* Make sure that all structs defined in this file remain laid out so
* that they pack the same way on 32-bit and 64-bit architectures (to
* avoid incompatibility between 32-bit userspace and 64-bit kernels).