netdev - [PATCH/RFC flow-net-next 10/10] net: flow: Add flow removed notification for eviction

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Date:	Mon, 29 Dec 2014 11:15:40 +0900
From:	Simon Horman <simon.horman@...ronome.com>
To:	John Fastabend <john.r.fastabend@...el.com>, netdev@...r.kernel.org
Cc:	Simon Horman <simon.horman@...ronome.com>
Subject: [PATCH/RFC flow-net-next 10/10] net: flow: Add flow removed notification for eviction

This adds a flag to flows to allow flow removed notifications
to be sent when eviction occurs.

Inspired by OpenFlow.

Signed-off-by: Simon Horman <simon.horman@...ronome.com>

---

Compile tested only
---
 include/uapi/linux/if_flow.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/include/uapi/linux/if_flow.h b/include/uapi/linux/if_flow.h
index 7264629..9db7b30 100644
--- a/include/uapi/linux/if_flow.h
+++ b/include/uapi/linux/if_flow.h
@@ -792,12 +792,14 @@ enum net_flow_rem_reason {
 	NET_FLOW_REM_FLOW_REASON_IDLE_TIMEOUT,	/* Idle timeout */
 	NET_FLOW_REM_FLOW_REASON_HARD_TIMEOUT,	/* Hard timeout */
 	NET_FLOW_REM_FLOW_REASON_DELETE,	/* Deleted (by NET_FLOW_TABLE_CMD_DEL_FLOWS) */
+	NET_FLOW_REM_FLOW_REASON_EVICTION,	/* Evicted by switch */
 };
 
 enum {
 	NET_FLOW_REM_F_IDLE_TIMEOUT	= (1 << NET_FLOW_REM_FLOW_REASON_IDLE_TIMEOUT),
 	NET_FLOW_REM_F_HARD_TIMEOUT	= (1 << NET_FLOW_REM_FLOW_REASON_HARD_TIMEOUT),
 	NET_FLOW_REM_F_DELETE		= (1 << NET_FLOW_REM_FLOW_REASON_DELETE),
+	NET_FLOW_REM_F_EVICTION		= (1 << NET_FLOW_REM_FLOW_REASON_EVICTION),
 };
 
 enum {
-- 
2.1.3

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