[ovs-dev] [PATCH 1/2] datapath-windows: define mcgroup IDs for VPORT and other families

Nithin Raju nithin at vmware.com
Sat Aug 23 04:51:22 UTC 2014

dpif-linux.c makes a nl_lookup_genl_mcgroup(OVS_VPORT_FAMILY) that is not
implemented yet on Windows yet. Multicast group is used currently to
subscribe to events related to VPORTs. Whether the exact same mechanism
would be used is unclear yet.

In the interim, we can implement code to support nl_lookup_genl_mcgroup().
and make progress with the other simpler commands.

In this patch, we define a ID for the VPORT MC group and other groups. The
plan is to use only the VPORT MC group though.

Signed-off-by: Nithin Raju <nithin at vmware.com>
 datapath-windows/include/OvsDpInterfaceExt.h |    8 ++++++++
 1 files changed, 8 insertions(+), 0 deletions(-)

diff --git a/datapath-windows/include/OvsDpInterfaceExt.h b/datapath-windows/include/OvsDpInterfaceExt.h
index dd34512..24601ed 100644
--- a/datapath-windows/include/OvsDpInterfaceExt.h
+++ b/datapath-windows/include/OvsDpInterfaceExt.h
@@ -54,6 +54,14 @@
 #define OVS_WIN_NL_VPORT_FAMILY_ID           4
 #define OVS_WIN_NL_FLOW_FAMILY_ID            5
+#define OVS_WIN_NL_INVALID_MCGRP_ID          0
+#define OVS_WIN_NL_MCGRP_START_ID            100
+#define OVS_WIN_NL_CTRL_MCGRP_ID             101
+#define OVS_WIN_NL_DATAPATH_MCGRP_ID         102
+#define OVS_WIN_NL_PACKET_MCGRP_ID           103
+#define OVS_WIN_NL_VPORT_MCGRP_ID            104
+#define OVS_WIN_NL_FLOW_MCGRP_ID             105
  * Define a family of netlink command specific to Windows. This is part of the
  * extensions.

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