| Message ID | 20201123071230.676469-1-idosch@idosch.org (mailing list archive) |
|---|---|
| Headers | show |
| Series | mlxsw: Add support for blackhole nexthops | expand |
On Mon, 23 Nov 2020 09:12:20 +0200 Ido Schimmel wrote: > This patch set adds support for blackhole nexthops in mlxsw. These > nexthops are exactly the same as other nexthops, but instead of > forwarding packets to an egress router interface (RIF), they are > programmed to silently drop them. > > Patches #1-#4 are preparations. > > Patch #5 adds support for blackhole nexthops and removes the check that > prevented them from being programmed. > > Patch #6 adds a selftests over mlxsw which tests that blackhole nexthops > can be programmed and are marked as offloaded. > > Patch #7 extends the existing nexthop forwarding test to also test > blackhole functionality. > > Patches #8-#10 add support for a new packet trap ('blackhole_nexthop') > which should be triggered whenever packets are dropped by a blackhole > nexthop. Obviously, by default, the trap action is set to 'drop' so that > dropped packets will not be reported. Applied, thanks!
From: Ido Schimmel <idosch@nvidia.com> This patch set adds support for blackhole nexthops in mlxsw. These nexthops are exactly the same as other nexthops, but instead of forwarding packets to an egress router interface (RIF), they are programmed to silently drop them. Patches #1-#4 are preparations. Patch #5 adds support for blackhole nexthops and removes the check that prevented them from being programmed. Patch #6 adds a selftests over mlxsw which tests that blackhole nexthops can be programmed and are marked as offloaded. Patch #7 extends the existing nexthop forwarding test to also test blackhole functionality. Patches #8-#10 add support for a new packet trap ('blackhole_nexthop') which should be triggered whenever packets are dropped by a blackhole nexthop. Obviously, by default, the trap action is set to 'drop' so that dropped packets will not be reported. Ido Schimmel (10): mlxsw: spectrum_router: Create loopback RIF during initialization mlxsw: spectrum_router: Use different trap identifier for unresolved nexthops mlxsw: spectrum_router: Use loopback RIF for unresolved nexthops mlxsw: spectrum_router: Resolve RIF from nexthop struct instead of neighbour mlxsw: spectrum_router: Add support for blackhole nexthops selftests: mlxsw: Add blackhole nexthop configuration tests selftests: forwarding: Add blackhole nexthops tests devlink: Add blackhole_nexthop trap mlxsw: spectrum_trap: Add blackhole_nexthop trap selftests: mlxsw: Add blackhole_nexthop trap test .../networking/devlink/devlink-trap.rst | 4 + .../ethernet/mellanox/mlxsw/spectrum_dpipe.c | 9 +- .../ethernet/mellanox/mlxsw/spectrum_router.c | 92 ++++++++++++++++--- .../ethernet/mellanox/mlxsw/spectrum_router.h | 2 + .../ethernet/mellanox/mlxsw/spectrum_trap.c | 8 +- drivers/net/ethernet/mellanox/mlxsw/trap.h | 1 + include/net/devlink.h | 4 +- net/core/devlink.c | 1 + .../net/mlxsw/devlink_trap_l3_drops.sh | 36 ++++++++ .../selftests/drivers/net/mlxsw/rtnetlink.sh | 25 ++++- .../net/forwarding/router_mpath_nh.sh | 58 +++++++++++- 11 files changed, 218 insertions(+), 22 deletions(-)