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| author | Hadar Hen Zion <hadarh@mellanox.com> | 2016-08-17 12:36:11 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-08-19 08:13:13 +0200 |
| commit | f6a66927692e30bdc1792e7a1fc2107d4dfcf42d (patch) | |
| tree | 7384ae6b8d7378c945a792120b0b64fd156a5b3c /include | |
| parent | flow_dissector: For stripped vlan, get vlan info from skb->vlan_tci (diff) | |
| download | linux-f6a66927692e30bdc1792e7a1fc2107d4dfcf42d.tar.xz linux-f6a66927692e30bdc1792e7a1fc2107d4dfcf42d.zip | |
flow_dissector: Get vlan priority in addition to vlan id
Add vlan priority check to the flow dissector by adding new flow
dissector struct, flow_dissector_key_vlan which includes vlan tag
fields.
vlan_id and flow_label fields were under the same struct
(flow_dissector_key_tags). It was a convenient setting since struct
flow_dissector_key_tags is used by struct flow_keys and by setting
vlan_id and flow_label under the same struct, we get precisely 24 or 48
bytes in flow_keys from flow_dissector_key_basic.
Now, when adding vlan priority support, the code will be cleaner if
flow_label and vlan tag won't be under the same struct anymore.
Signed-off-by: Hadar Hen Zion <hadarh@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/if_vlan.h | 1 | ||||
| -rw-r--r-- | include/net/flow_dissector.h | 12 |
2 files changed, 10 insertions, 3 deletions
diff --git a/include/linux/if_vlan.h b/include/linux/if_vlan.h index a5f6ce6b578c..49d4aef1f789 100644 --- a/include/linux/if_vlan.h +++ b/include/linux/if_vlan.h @@ -81,6 +81,7 @@ static inline bool is_vlan_dev(const struct net_device *dev) #define skb_vlan_tag_present(__skb) ((__skb)->vlan_tci & VLAN_TAG_PRESENT) #define skb_vlan_tag_get(__skb) ((__skb)->vlan_tci & ~VLAN_TAG_PRESENT) #define skb_vlan_tag_get_id(__skb) ((__skb)->vlan_tci & VLAN_VID_MASK) +#define skb_vlan_tag_get_prio(__skb) ((__skb)->vlan_tci & VLAN_PRIO_MASK) /** * struct vlan_pcpu_stats - VLAN percpu rx/tx stats diff --git a/include/net/flow_dissector.h b/include/net/flow_dissector.h index d3d60dccd19f..f266b512c3bd 100644 --- a/include/net/flow_dissector.h +++ b/include/net/flow_dissector.h @@ -32,8 +32,13 @@ struct flow_dissector_key_basic { }; struct flow_dissector_key_tags { - u32 vlan_id:12, - flow_label:20; + u32 flow_label; +}; + +struct flow_dissector_key_vlan { + u16 vlan_id:12, + vlan_priority:3; + u16 padding; }; struct flow_dissector_key_keyid { @@ -119,7 +124,7 @@ enum flow_dissector_key_id { FLOW_DISSECTOR_KEY_PORTS, /* struct flow_dissector_key_ports */ FLOW_DISSECTOR_KEY_ETH_ADDRS, /* struct flow_dissector_key_eth_addrs */ FLOW_DISSECTOR_KEY_TIPC_ADDRS, /* struct flow_dissector_key_tipc_addrs */ - FLOW_DISSECTOR_KEY_VLANID, /* struct flow_dissector_key_flow_tags */ + FLOW_DISSECTOR_KEY_VLAN, /* struct flow_dissector_key_flow_vlan */ FLOW_DISSECTOR_KEY_FLOW_LABEL, /* struct flow_dissector_key_flow_tags */ FLOW_DISSECTOR_KEY_GRE_KEYID, /* struct flow_dissector_key_keyid */ FLOW_DISSECTOR_KEY_MPLS_ENTROPY, /* struct flow_dissector_key_keyid */ @@ -148,6 +153,7 @@ struct flow_keys { #define FLOW_KEYS_HASH_START_FIELD basic struct flow_dissector_key_basic basic; struct flow_dissector_key_tags tags; + struct flow_dissector_key_vlan vlan; struct flow_dissector_key_keyid keyid; struct flow_dissector_key_ports ports; struct flow_dissector_key_addrs addrs; |