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Add support for 802.1ad (QinQ tunneling)

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Flow key handling changes:
 - Add VLAN header array in struct flow, to record multiple 802.1q VLAN
   headers.
 - Add dpif multi-VLAN capability probing. If datapath supports
   multi-VLAN, increase the maximum depth of nested OVS_KEY_ATTR_ENCAP.

Refactor VLAN handling in dpif-xlate:
 - Introduce 'xvlan' to track VLAN stack during flow processing.
 - Input and output VLAN translation according to the xbundle type.

Push VLAN action support:
 - Allow ethertype 0x88a8 in VLAN headers and push_vlan action.
 - Support push_vlan on dot1q packets.

Use other_config:vlan-limit in table Open_vSwitch to limit maximum VLANs
that can be matched. This allows us to preserve backwards compatibility.

Add test cases for VLAN depth limit, Multi-VLAN actions and QinQ VLAN
handling

Co-authored-by: Thomas F Herbert <thomasfherbert@gmail.com>
Signed-off-by: Thomas F Herbert <thomasfherbert@gmail.com>
Co-authored-by: Xiao Liang <shaw.leon@gmail.com>
Signed-off-by: Xiao Liang <shaw.leon@gmail.com>
Signed-off-by: Eric Garver <e@erig.me>
Signed-off-by: Ben Pfaff <blp@ovn.org>
This commit is contained in:
Eric Garver
2017-03-01 17:47:59 -05:00
committed by Ben Pfaff
parent 4c71600d22
commit f0fb825a37
33 changed files with 1109 additions and 577 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
include/openvswitch/ofp-actions.h
View File

@@ -68,7 +68,7 @@ struct vl_mff_map;
OFPACT(SET_VLAN_VID, ofpact_vlan_vid, ofpact, "set_vlan_vid") \
OFPACT(SET_VLAN_PCP, ofpact_vlan_pcp, ofpact, "set_vlan_pcp") \
OFPACT(STRIP_VLAN, ofpact_null, ofpact, "strip_vlan") \
OFPACT(PUSH_VLAN, ofpact_null, ofpact, "push_vlan") \
OFPACT(PUSH_VLAN, ofpact_push_vlan, ofpact, "push_vlan") \
OFPACT(SET_ETH_SRC, ofpact_mac, ofpact, "mod_dl_src") \
OFPACT(SET_ETH_DST, ofpact_mac, ofpact, "mod_dl_dst") \
OFPACT(SET_IPV4_SRC, ofpact_ipv4, ofpact, "mod_nw_src") \
@@ -390,6 +390,14 @@ struct ofpact_vlan_pcp {
bool flow_has_vlan; /* VLAN present at action validation time? */
};
/* OFPACT_PUSH_VLAN.
*
* Used for OFPAT11_PUSH_VLAN. */
struct ofpact_push_vlan {
struct ofpact ofpact;
ovs_be16 ethertype;
};
/* OFPACT_SET_ETH_SRC, OFPACT_SET_ETH_DST.
*
* Used for OFPAT10_SET_DL_SRC, OFPAT10_SET_DL_DST. */