The merge commit 92716869375b ("Merge branch 'br-flush-filtering'") added
support for FDB flushing in bridge driver. Extend VXLAN driver to support
FDB flushing also. Add support for filtering by fields which are relevant
for VXLAN FDBs:
* Source VNI
* Nexthop ID
* 'router' flag
* Destination VNI
* Destination Port
* Destination IP
Without this set, flush for VXLAN device fails:
$ bridge fdb flush dev vx10
RTNETLINK answers: Operation not supported
With this set, such flush works with the relevant arguments, for example:
$ bridge fdb flush dev vx10 vni 5000 dst 193.2.2.1
< flush all vx10 entries with VNI 5000 and destination IP 193.2.2.1>
Some preparations are required, handle them before adding flushing support
in VXLAN driver. See more details in commit messages.
Patch set overview:
Patch #1 prepares flush policy to be used by VXLAN driver
Patches #2-#3 are preparations in VXLAN driver
Patch #4 adds an initial support for flushing in VXLAN driver
Patches #5-#9 add support for filtering by several attributes
Patch #10 adds a test for FDB flush with VXLAN
Patch #11 extends the test to check FDB flush with bridge
Amit Cohen (11):
net: Handle bulk delete policy in bridge driver
vxlan: vxlan_core: Make vxlan_flush() more generic for future use
vxlan: vxlan_core: Do not skip default entry in vxlan_flush() by
default
vxlan: vxlan_core: Add support for FDB flush
vxlan: vxlan_core: Support FDB flushing by source VNI
vxlan: vxlan_core: Support FDB flushing by nexthop ID
vxlan: vxlan_core: Support FDB flushing by destination VNI
vxlan: vxlan_core: Support FDB flushing by destination port
vxlan: vxlan_core: Support FDB flushing by destination IP
selftests: Add test cases for FDB flush with VXLAN device
selftests: fdb_flush: Add test cases for FDB flush with bridge device
drivers/net/vxlan/vxlan_core.c | 207 +++++-
include/linux/netdevice.h | 8 +-
net/bridge/br_fdb.c | 29 +-
net/bridge/br_private.h | 3 +-
net/core/rtnetlink.c | 27 +-
tools/testing/selftests/net/Makefile | 1 +
tools/testing/selftests/net/fdb_flush.sh | 812 +++++++++++++++++++++++
7 files changed, 1049 insertions(+), 38 deletions(-)
create mode 100755 tools/testing/selftests/net/fdb_flush.sh
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2.40.1
