From d44296e70bb4f1b7fab42d454cef125d3d4479e3 Mon Sep 17 00:00:00 2001
From: Prabhjot Singh Sethi <prabhjot@juniper.net>
Date: Sat, 27 Feb 2016 23:21:58 +0530
Subject: [PATCH] Disable Eviction of flow in Vrouter

Vrouter will track tcp flags, but will not evict the flow
entry once the session is closed and let vrouter agent
look at the flag to delete the flow eventually.

This is required till vrouter agent handles evict event
in a more stable way

Partial-Bug: 1550759
Change-Id: Ic7074442b22fc2c11362274e4e390654f3f2400a
---
 dp-core/vr_flow.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/dp-core/vr_flow.c b/dp-core/vr_flow.c
index 809615cbe..8110173ee 100644
--- a/dp-core/vr_flow.c
+++ b/dp-core/vr_flow.c
@@ -810,8 +810,19 @@ vr_flow_action(struct vrouter *router, struct vr_flow_entry *fe,
         break;
     }
 
+    /*
+     * Eviction of Flow in vrouter add additional events to vrouter
+     * agent state machine making it complex and unstable, till
+     * agent is handling vrouter eviction appropriately, disabling
+     * eviction from vrouter.
+     * NOTE: Vrouter agent will look at VR_FLOW_TCP_DEAD flag to
+     * clear/evict flow immediately
+     * TODO(prabhjot): need to re-enable, after stablizing agent
+     */
+#if 0
     if (fe->fe_tcp_flags & VR_FLOW_TCP_DEAD)
         vr_flow_mark_evict(router, fe, index);
+#endif
 
     return result;
 }