Signed-off-by: Roi Dayan <[email protected]>
---
lib/dpif-netdev.c | 1 +
lib/dpif-netlink.c | 1 +
lib/dpif-provider.h | 9 +++++++++
3 files changed, 11 insertions(+)
diff --git a/lib/dpif-netdev.c b/lib/dpif-netdev.c
index de6aa49a5feb..eace324bde35 100644
--- a/lib/dpif-netdev.c
+++ b/lib/dpif-netdev.c
@@ -9996,6 +9996,7 @@ dpif_netdev_is_userspace(void)
const struct dpif_class dpif_netdev_class = {
"netdev",
+ dpif_class_version,
true, /* cleanup_required */
true, /* synced_dp_layers */
dpif_netdev_init,
diff --git a/lib/dpif-netlink.c b/lib/dpif-netlink.c
index 3434796177aa..c94d65af4994 100644
--- a/lib/dpif-netlink.c
+++ b/lib/dpif-netlink.c
@@ -4502,6 +4502,7 @@ dpif_netlink_cache_set_size(struct dpif *dpif_, uint32_t
level, uint32_t size)
const struct dpif_class dpif_netlink_class = {
"system",
+ dpif_class_version,
false, /* cleanup_required */
false, /* synced_dp_layers */
NULL, /* init */
diff --git a/lib/dpif-provider.h b/lib/dpif-provider.h
index 6bc4e0c229ad..10f43dfaf156 100644
--- a/lib/dpif-provider.h
+++ b/lib/dpif-provider.h
@@ -108,6 +108,10 @@ struct dpif_ipf_status {
unsigned int nfrag_max;
};
+/* The version should be increased for any change to the
+ * datapath interface class structure. */
+static const unsigned int dpif_class_version = 1234;
+
/* Datapath interface class structure, to be defined by each implementation of
* a datapath interface.
*
@@ -125,6 +129,11 @@ struct dpif_class {
* the type assumed if no type is specified when opening a dpif. */
const char *type;
+ /* Should match dpif_class_version.
+ * External dpif classed compiled elsewhere expected to set a version
+ * matching the implemented class. */
+ unsigned int class_version;
+
/* If 'true', datapath ports should be destroyed on ofproto destruction.
*
* This is used by the vswitch at exit, so that it can clean any
--
2.46.1
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