openwrt/target/linux/generic/pending-4.19/643-net-bridge-support-hardware-flow-table-offload.patch
Hauke Mehrtens 52a82ce3dd kernel: Copy patches from kernel 4.14 to 4.19
This just copies the files from the kernel 4.14 specific folders into
the kernel 4.19 specific folder, no changes are done to the files in
this commit.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
2018-12-15 12:50:06 +01:00

62 lines
1.7 KiB
Diff

From: Felix Fietkau <nbd@nbd.name>
Date: Thu, 15 Mar 2018 20:50:37 +0100
Subject: [PATCH] net: bridge: support hardware flow table offload
Look up the real device and pass it on
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
--- a/net/bridge/br_device.c
+++ b/net/bridge/br_device.c
@@ -18,6 +18,10 @@
#include <linux/ethtool.h>
#include <linux/list.h>
#include <linux/netfilter_bridge.h>
+#if IS_ENABLED(CONFIG_NF_FLOW_TABLE)
+#include <linux/netfilter.h>
+#include <net/netfilter/nf_flow_table.h>
+#endif
#include <linux/uaccess.h>
#include "br_private.h"
@@ -340,6 +344,28 @@ static const struct ethtool_ops br_ethto
.get_link = ethtool_op_get_link,
};
+#if IS_ENABLED(CONFIG_NF_FLOW_TABLE)
+static int br_flow_offload_check(struct flow_offload_hw_path *path)
+{
+ struct net_device *dev = path->dev;
+ struct net_bridge *br = netdev_priv(dev);
+ struct net_bridge_fdb_entry *dst;
+
+ if (!(path->flags & FLOW_OFFLOAD_PATH_ETHERNET))
+ return -EINVAL;
+
+ dst = br_fdb_find_rcu(br, path->eth_dest, path->vlan_id);
+ if (!dst || !dst->dst)
+ return -ENOENT;
+
+ path->dev = dst->dst->dev;
+ if (path->dev->netdev_ops->ndo_flow_offload_check)
+ return path->dev->netdev_ops->ndo_flow_offload_check(path);
+
+ return 0;
+}
+#endif /* CONFIG_NF_FLOW_TABLE */
+
static const struct net_device_ops br_netdev_ops = {
.ndo_open = br_dev_open,
.ndo_stop = br_dev_stop,
@@ -367,6 +393,9 @@ static const struct net_device_ops br_ne
.ndo_bridge_setlink = br_setlink,
.ndo_bridge_dellink = br_dellink,
.ndo_features_check = passthru_features_check,
+#if IS_ENABLED(CONFIG_NF_FLOW_TABLE)
+ .ndo_flow_offload_check = br_flow_offload_check,
+#endif
};
static struct device_type br_type = {