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