[][Add initial mtk feed for OpenWRT v21.02]
[Description]
Add initial mtk feed for OpenWRT v21.02
[Release-log]
N/A
Change-Id: I8051c6ba87f1ccf26c02fdd88a17d66f63c0b101
Reviewed-on: https://gerrit.mediatek.inc/c/openwrt/feeds/mtk_openwrt_feeds/+/4495320
diff --git a/target/linux/mediatek/patches-5.4/1002-mtkhnat-add-support-for-virtual-interface-acceleration.patch b/target/linux/mediatek/patches-5.4/1002-mtkhnat-add-support-for-virtual-interface-acceleration.patch
new file mode 100644
index 0000000..150087a
--- /dev/null
+++ b/target/linux/mediatek/patches-5.4/1002-mtkhnat-add-support-for-virtual-interface-acceleration.patch
@@ -0,0 +1,127 @@
+diff --git a/include/net/netfilter/nf_flow_table.h b/include/net/netfilter/nf_flow_table.h
+index 3d73c0c..960ade1 100644
+--- a/include/net/netfilter/nf_flow_table.h
++++ b/include/net/netfilter/nf_flow_table.h
+@@ -92,9 +92,12 @@ struct flow_offload {
+ #define FLOW_OFFLOAD_PATH_VLAN BIT(1)
+ #define FLOW_OFFLOAD_PATH_PPPOE BIT(2)
+ #define FLOW_OFFLOAD_PATH_DSA BIT(3)
++#define FLOW_OFFLOAD_PATH_DSLITE BIT(4)
++#define FLOW_OFFLOAD_PATH_6RD BIT(5)
+
+ struct flow_offload_hw_path {
+ struct net_device *dev;
++ struct net_device *virt_dev;
+ u32 flags;
+
+ u8 eth_src[ETH_ALEN];
+diff --git a/net/8021q/vlan_dev.c b/net/8021q/vlan_dev.c
+index be6801524..c51af70f6 100644
+--- a/net/8021q/vlan_dev.c
++++ b/net/8021q/vlan_dev.c
+@@ -761,6 +761,7 @@ static int vlan_dev_flow_offload_check(struct flow_offload_hw_path *path)
+ path->flags |= FLOW_OFFLOAD_PATH_VLAN;
+ path->vlan_proto = vlan->vlan_proto;
+ path->vlan_id = vlan->vlan_id;
++ path->virt_dev = dev;
+ path->dev = vlan->real_dev;
+
+ if (vlan->real_dev->netdev_ops->ndo_flow_offload_check)
+diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c
+index 1b7e3141c..da4e34f74 100644
+--- a/net/ipv6/ip6_tunnel.c
++++ b/net/ipv6/ip6_tunnel.c
+@@ -57,6 +57,11 @@
+ #include <net/netns/generic.h>
+ #include <net/dst_metadata.h>
+
++#if IS_ENABLED(CONFIG_NF_FLOW_TABLE)
++#include <linux/netfilter.h>
++#include <net/netfilter/nf_flow_table.h>
++#endif
++
+ MODULE_AUTHOR("Ville Nuorvala");
+ MODULE_DESCRIPTION("IPv6 tunneling device");
+ MODULE_LICENSE("GPL");
+@@ -1880,6 +1885,22 @@ int ip6_tnl_get_iflink(const struct net_device *dev)
+ }
+ EXPORT_SYMBOL(ip6_tnl_get_iflink);
+
++#if IS_ENABLED(CONFIG_NF_FLOW_TABLE)
++static int ipip6_dev_flow_offload_check(struct flow_offload_hw_path *path)
++{
++ struct net_device *dev = path->dev;
++ struct ip6_tnl *tnl = netdev_priv(dev);
++
++ if (path->flags & FLOW_OFFLOAD_PATH_DSLITE)
++ return -EEXIST;
++
++ path->flags |= FLOW_OFFLOAD_PATH_DSLITE;
++ path->dev = tnl->dev;
++
++ return 0;
++}
++#endif /* CONFIG_NF_FLOW_TABLE */
++
+ int ip6_tnl_encap_add_ops(const struct ip6_tnl_encap_ops *ops,
+ unsigned int num)
+ {
+@@ -1941,6 +1962,9 @@ static const struct net_device_ops ip6_tnl_netdev_ops = {
+ .ndo_change_mtu = ip6_tnl_change_mtu,
+ .ndo_get_stats = ip6_get_stats,
+ .ndo_get_iflink = ip6_tnl_get_iflink,
++#if IS_ENABLED(CONFIG_NF_FLOW_TABLE)
++ .ndo_flow_offload_check = ipip6_dev_flow_offload_check,
++#endif
+ };
+
+ #define IPXIPX_FEATURES (NETIF_F_SG | \
+diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c
+index 98954830c..42b6e8c4c 100644
+--- a/net/ipv6/sit.c
++++ b/net/ipv6/sit.c
+@@ -52,6 +52,11 @@
+ #include <net/net_namespace.h>
+ #include <net/netns/generic.h>
+
++#if IS_ENABLED(CONFIG_NF_FLOW_TABLE)
++#include <linux/netfilter.h>
++#include <net/netfilter/nf_flow_table.h>
++#endif
++
+ /*
+ This version of net/ipv6/sit.c is cloned of net/ipv4/ip_gre.c
+
+@@ -1345,6 +1350,22 @@ ipip6_tunnel_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
+ return err;
+ }
+
++#if IS_ENABLED(CONFIG_NF_FLOW_TABLE)
++static int ipip6_dev_flow_offload_check(struct flow_offload_hw_path *path)
++{
++ struct net_device *dev = path->dev;
++ struct ip_tunnel *tnl = netdev_priv(dev);
++
++ if (path->flags & FLOW_OFFLOAD_PATH_6RD)
++ return -EEXIST;
++
++ path->flags |= FLOW_OFFLOAD_PATH_6RD;
++ path->dev = tnl->dev;
++
++ return 0;
++}
++#endif /* CONFIG_NF_FLOW_TABLE */
++
+ static const struct net_device_ops ipip6_netdev_ops = {
+ .ndo_init = ipip6_tunnel_init,
+ .ndo_uninit = ipip6_tunnel_uninit,
+@@ -1352,6 +1373,9 @@ static const struct net_device_ops ipip6_netdev_ops = {
+ .ndo_do_ioctl = ipip6_tunnel_ioctl,
+ .ndo_get_stats64 = ip_tunnel_get_stats64,
+ .ndo_get_iflink = ip_tunnel_get_iflink,
++#if IS_ENABLED(CONFIG_NF_FLOW_TABLE)
++ .ndo_flow_offload_check = ipip6_dev_flow_offload_check,
++#endif
+ };
+
+ static void ipip6_dev_free(struct net_device *dev)