[qca-nss-sfe] Add PPPoE bridge support
Change-Id: Ic55a3ec2bad9c5cf7b94964ab5a9ca9b3a9bc2ba
Signed-off-by: Guduri Prathyusha <quic_gprathyu@quicinc.com>
diff --git a/sfe_ipv6_udp.c b/sfe_ipv6_udp.c
index fc260bd..9258ae7 100644
--- a/sfe_ipv6_udp.c
+++ b/sfe_ipv6_udp.c
@@ -305,12 +305,23 @@
} else if (unlikely(sfe_l2_parse_flag_check(l2_info, SFE_L2_PARSE_FLAGS_PPPOE_INGRESS))) {
/*
- * If packet contains PPPOE header but CME doesn't contain PPPoE flag yet we are exceptioning the packet to linux
+ * If packet contains PPPoE header but CME doesn't contain PPPoE flag yet we are exceptioning the packet to linux
*/
- rcu_read_unlock();
- DEBUG_TRACE("%px: PPPoE is not parsed\n", skb);
- sfe_ipv6_exception_stats_inc(si, SFE_IPV6_EXCEPTION_EVENT_INCORRECT_PPPOE_PARSING);
- return 0;
+
+ if (unlikely(!(cm->flags & SFE_IPV6_CONNECTION_MATCH_FLAG_BRIDGE_FLOW))) {
+ rcu_read_unlock();
+ DEBUG_TRACE("%px: CME doesn't contain PPPoE flag but packet has PPPoE header\n", skb);
+ sfe_ipv6_exception_stats_inc(si, SFE_IPV6_EXCEPTION_EVENT_INCORRECT_PPPOE_PARSING);
+ return 0;
+ }
+
+ /*
+ * For bridged flows when packet contains PPPoE header, restore the header back and forward to xmit interface
+ */
+ __skb_push(skb, (sizeof(struct pppoe_hdr) + sizeof(struct sfe_ppp_hdr)));
+ l2_info->l2_hdr_size -= (sizeof(struct pppoe_hdr) + sizeof(struct sfe_ppp_hdr));
+ this_cpu_inc(si->stats_pcpu->pppoe_bridge_packets_forwarded64);
+
}
/*
@@ -330,7 +341,7 @@
/*
* For PPPoE flows, add PPPoE header before L2 header is added.
*/
- if (cm->flags & SFE_IPV6_CONNECTION_MATCH_FLAG_PPPOE_ENCAP) {
+ if (unlikely(cm->flags & SFE_IPV6_CONNECTION_MATCH_FLAG_PPPOE_ENCAP)) {
sfe_pppoe_add_header(skb, cm->pppoe_session_id, PPP_IPV6);
this_cpu_inc(si->stats_pcpu->pppoe_encap_packets_forwarded64);
}