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- 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 = {
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