| b.liu | e958203 | 2025-04-17 19:18:16 +0800 | [diff] [blame] | 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 | @@ -747,6 +752,27 @@ 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 | @@ -785,6 +811,9 @@ 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) |