[qca-nss-sfe] Add src iface check with no flush flag

This is required to re-inject the packets to the stack,
if L2 acceleration is not enabled for the flows. By doing
this check, first pass of the flow with the L2 interface will be
skipped and the flow will come to SFE with the L3 interface in the
second pass.

Change-Id: I83585c3cf937451545e7854f51a0389c2ca557c5
Signed-off-by: Murat Sezgin <quic_msezgin@quicinc.com>
diff --git a/sfe_ipv4.h b/sfe_ipv4.h
index f19adb1..6c058e0 100644
--- a/sfe_ipv4.h
+++ b/sfe_ipv4.h
@@ -70,7 +70,7 @@
 #define SFE_IPV4_CONNECTION_MATCH_FLAG_INSERT_EGRESS_VLAN_TAG (1<<12)
 					/* Insert VLAN tag */
 #define SFE_IPV4_CONNECTION_MATCH_FLAG_SRC_INTERFACE_CHECK (1<<13)
-					/* Source interface check.*/
+					/* Source interface check */
 #define SFE_IPV4_CONNECTION_MATCH_FLAG_PASSTHROUGH (1<<14)
 					/* passthrough flow: encap/decap to be skipped for this flow */
 #define SFE_IPV4_CONNECTION_MATCH_FLAG_FAST_XMIT (1<<15)
@@ -79,6 +79,8 @@
 					/* Fast xmit flow checked or not */
 #define SFE_IPV4_CONNECTION_MATCH_FLAG_FAST_XMIT_DEV_ADMISSION (1<<17)
 					/* Fast xmit may be possible for this flow, if SFE check passes */
+#define SFE_IPV4_CONNECTION_MATCH_FLAG_SRC_INTERFACE_CHECK_NO_FLUSH (1<<18)
+					/* Source interface check but do not flush the connection */
 
 /*
  * IPv4 connection matching structure.