target/linux/generic/pending-5.4/642-net-8021q-support-hardware-flow-table-offload.patch

   1 From: Felix Fietkau <nbd@nbd.name>
   2 Date: Thu, 15 Mar 2018 20:49:58 +0100
   3 Subject: [PATCH] net: 8021q: support hardware flow table offload
   4
   5 Add the VLAN ID and protocol information
   6
   7 Signed-off-by: Felix Fietkau <nbd@nbd.name>
   8 ---
   9
  10 --- a/net/8021q/vlan_dev.c
  11 +++ b/net/8021q/vlan_dev.c
  12 @@ -27,6 +27,11 @@
  13  #include <linux/phy.h>
  14  #include <net/arp.h>
  15
  16 +#if IS_ENABLED(CONFIG_NF_FLOW_TABLE)
  17 +#include <linux/netfilter.h>
  18 +#include <net/netfilter/nf_flow_table.h>
  19 +#endif
  20 +
  21  #include "vlan.h"
  22  #include "vlanproc.h"
  23  #include <linux/if_vlan.h>
  24 @@ -744,6 +749,27 @@ static int vlan_dev_get_iflink(const str
  25         return real_dev->ifindex;
  26  }
  27
  28 +#if IS_ENABLED(CONFIG_NF_FLOW_TABLE)
  29 +static int vlan_dev_flow_offload_check(struct flow_offload_hw_path *path)
  30 +{
  31 +       struct net_device *dev = path->dev;
  32 +       struct vlan_dev_priv *vlan = vlan_dev_priv(dev);
  33 +
  34 +       if (path->flags & FLOW_OFFLOAD_PATH_VLAN)
  35 +               return -EEXIST;
  36 +
  37 +       path->flags |= FLOW_OFFLOAD_PATH_VLAN;
  38 +       path->vlan_proto = vlan->vlan_proto;
  39 +       path->vlan_id = vlan->vlan_id;
  40 +       path->dev = vlan->real_dev;
  41 +
  42 +       if (vlan->real_dev->netdev_ops->ndo_flow_offload_check)
  43 +               return vlan->real_dev->netdev_ops->ndo_flow_offload_check(path);
  44 +
  45 +       return 0;
  46 +}
  47 +#endif /* CONFIG_NF_FLOW_TABLE */
  48 +
  49  static const struct ethtool_ops vlan_ethtool_ops = {
  50         .get_link_ksettings     = vlan_ethtool_get_link_ksettings,
  51         .get_drvinfo            = vlan_ethtool_get_drvinfo,
  52 @@ -782,6 +808,9 @@ static const struct net_device_ops vlan_
  53  #endif
  54         .ndo_fix_features       = vlan_dev_fix_features,
  55         .ndo_get_iflink         = vlan_dev_get_iflink,
  56 +#if IS_ENABLED(CONFIG_NF_FLOW_TABLE)
  57 +       .ndo_flow_offload_check = vlan_dev_flow_offload_check,
  58 +#endif
  59  };
  60
  61  static void vlan_dev_free(struct net_device *dev)