| 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 |
| @@ -14,6 +14,10 @@ |
| #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" |
| @@ -382,6 +386,28 @@ 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, |
| @@ -410,6 +436,9 @@ 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 = { |