[net-next,0/9] Add MDB bulk deletion support

Message

Ido Schimmel Dec. 17, 2023, 8:32 a.m. UTC

This patchset adds MDB bulk deletion support, allowing user space to
request the deletion of matching entries instead of dumping the entire
MDB and issuing a separate deletion request for each matching entry.
Support is added in both the bridge and VXLAN drivers in a similar
fashion to the existing FDB bulk deletion support.

The parameters according to which bulk deletion can be performed are
similar to the FDB ones, namely: Destination port, VLAN ID, state (e.g.,
"permanent"), routing protocol, source / destination VNI, destination IP
and UDP port. Flushing based on flags (e.g., "offload", "fast_leave",
"added_by_star_ex", "blocked") is not currently supported, but can be
added in the future, if a use case arises.

Patch #1 adds a new uAPI attribute to allow specifying the state mask
according to which bulk deletion will be performed, if any.

Patch #2 adds a new policy according to which bulk deletion requests
(with 'NLM_F_BULK' flag set) will be parsed.

Patches #3-#4 add a new NDO for MDB bulk deletion and invoke it from the
rtnetlink code when a bulk deletion request is made.

Patches #5-#6 implement the MDB bulk deletion NDO in the bridge and
VXLAN drivers, respectively.

Patch #7 allows user space to issue MDB bulk deletion requests by no
longer rejecting the 'NLM_F_BULK' flag when it is set in 'RTM_DELMDB'
requests.

Patches #8-#9 add selftests for both drivers, for both good and bad
flows.

iproute2 changes can be found here [1].

https://github.com/idosch/iproute2/tree/submit/mdb_flush_v1

Ido Schimmel (9):
  bridge: add MDB state mask uAPI attribute
  rtnetlink: bridge: Use a different policy for MDB bulk delete
  net: Add MDB bulk deletion device operation
  rtnetlink: bridge: Invoke MDB bulk deletion when needed
  bridge: mdb: Add MDB bulk deletion support
  vxlan: mdb: Add MDB bulk deletion support
  rtnetlink: bridge: Enable MDB bulk deletion
  selftests: bridge_mdb: Add MDB bulk deletion test
  selftests: vxlan_mdb: Add MDB bulk deletion test

 drivers/net/vxlan/vxlan_core.c                |   1 +
 drivers/net/vxlan/vxlan_mdb.c                 | 174 ++++++++++++---
 drivers/net/vxlan/vxlan_private.h             |   2 +
 include/linux/netdevice.h                     |   6 +
 include/uapi/linux/if_bridge.h                |   1 +
 net/bridge/br_device.c                        |   1 +
 net/bridge/br_mdb.c                           | 133 ++++++++++++
 net/bridge/br_private.h                       |   8 +
 net/core/rtnetlink.c                          |  62 +++++-
 .../selftests/net/forwarding/bridge_mdb.sh    | 191 ++++++++++++++++-
 tools/testing/selftests/net/test_vxlan_mdb.sh | 201 +++++++++++++++++-
 11 files changed, 749 insertions(+), 31 deletions(-)

Comments

[e-mail] Dec. 20, 2023, 11:30 a.m. UTC | #1

Hello:

This series was applied to netdev/net-next.git (main)
by David S. Miller <[e-mail]>:

On Sun, 17 Dec 2023 10:32:35 +0200 you wrote:
> This patchset adds MDB bulk deletion support, allowing user space to
> request the deletion of matching entries instead of dumping the entire
> MDB and issuing a separate deletion request for each matching entry.
> Support is added in both the bridge and VXLAN drivers in a similar
> fashion to the existing FDB bulk deletion support.
> 
> The parameters according to which bulk deletion can be performed are
> similar to the FDB ones, namely: Destination port, VLAN ID, state (e.g.,
> "permanent"), routing protocol, source / destination VNI, destination IP
> and UDP port. Flushing based on flags (e.g., "offload", "fast_leave",
> "added_by_star_ex", "blocked") is not currently supported, but can be
> added in the future, if a use case arises.
> 
> [...]

Here is the summary with links:
  - [net-next,1/9] bridge: add MDB state mask uAPI attribute
    https://git.kernel.org/netdev/net-next/c/e37a11fca418
  - [net-next,2/9] rtnetlink: bridge: Use a different policy for MDB bulk delete
    https://git.kernel.org/netdev/net-next/c/e0cd06f7fcb5
  - [net-next,3/9] net: Add MDB bulk deletion device operation
    https://git.kernel.org/netdev/net-next/c/1a36e0f50f96
  - [net-next,4/9] rtnetlink: bridge: Invoke MDB bulk deletion when needed
    https://git.kernel.org/netdev/net-next/c/d8e81f131178
  - [net-next,5/9] bridge: mdb: Add MDB bulk deletion support
    https://git.kernel.org/netdev/net-next/c/a6acb535afb2
  - [net-next,6/9] vxlan: mdb: Add MDB bulk deletion support
    https://git.kernel.org/netdev/net-next/c/4cde72fead4c
  - [net-next,7/9] rtnetlink: bridge: Enable MDB bulk deletion
    https://git.kernel.org/netdev/net-next/c/2601e9c4b117
  - [net-next,8/9] selftests: bridge_mdb: Add MDB bulk deletion test
    https://git.kernel.org/netdev/net-next/c/bd2dcb94c81e
  - [net-next,9/9] selftests: vxlan_mdb: Add MDB bulk deletion test
    https://git.kernel.org/netdev/net-next/c/c3e87a7fcd0b

You are awesome, thank you!