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net: bridge: vlan: add rtm range support

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Add a new vlandb nl attribute - BRIDGE_VLANDB_ENTRY_RANGE which causes
RTM_NEWVLAN/DELVAN to act on a range. Dumps now automatically compress
similar vlans into ranges. This will be also used when per-vlan options
are introduced and vlans' options match, they will be put into a single
range which is encapsulated in one netlink attribute. We need to run
similar checks as br_process_vlan_info() does because these ranges will
be used for options setting and they'll be able to skip
br_process_vlan_info().

Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Nikolay Aleksandrov
2020-01-14 19:56:12 +02:00
committed by David S. Miller
parent adb3ce9bcb
commit 0ab5587951
2 changed files with 73 additions and 14 deletions
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1
include/uapi/linux/if_bridge.h
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@@ -189,6 +189,7 @@ enum {
enum {
BRIDGE_VLANDB_ENTRY_UNSPEC,
BRIDGE_VLANDB_ENTRY_INFO,
BRIDGE_VLANDB_ENTRY_RANGE,
__BRIDGE_VLANDB_ENTRY_MAX,
};
#define BRIDGE_VLANDB_ENTRY_MAX (__BRIDGE_VLANDB_ENTRY_MAX - 1)