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| author |   Hadar Hen Zion <hadarh@mellanox.com> | 2017-02-24 12:16:33 +0200 |
|---|---|---|
| committer |   Saeed Mahameed <saeedm@mellanox.com> | 2017-04-30 16:03:14 +0300 |
| commit | f6dfb4c3f2161c23ab2939dd1b5f133dcdf147c6 (patch) | |
| tree | 6cb4c342e3697ab32a22965834c852ceb29eefe6 /drivers/net/ethernet/mellanox/mlx5/core/fs_core.h | |
| parent | net/mlx5e: Add support to neighbour update flow (diff) | |
| download | wireguard-linux-f6dfb4c3f2161c23ab2939dd1b5f133dcdf147c6.tar.xz wireguard-linux-f6dfb4c3f2161c23ab2939dd1b5f133dcdf147c6.zip | |
net/mlx5e: Update neighbour 'used' state using HW flow rules counters
When IP tunnel encapsulation rules are offloaded, the kernel can't see
the traffic of the offloaded flow. The neighbour for the IP tunnel
destination of the offloaded flow can mistakenly become STALE and
deleted by the kernel since its 'used' value wasn't changed.
To make sure that a neighbour which is used by the HW won't become
STALE, we proactively update the neighbour 'used' value every
DELAY_PROBE_TIME period, when packets were matched and counted by the HW
for one of the tunnel encap flows related to this neighbour.
The periodic task that updates the used neighbours is scheduled when a
tunnel encap rule is successfully offloaded into HW and keeps re-scheduling
itself as long as the representor's neighbours list isn't empty.
Add, remove, lookup and status change operations done over the
representor's neighbours list or the neighbour hash entry encaps list
are all serialized by RTNL lock.
Signed-off-by: Hadar Hen Zion <hadarh@mellanox.com>
Reviewed-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx5/core/fs_core.h')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/fs_core.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fs_core.h b/drivers/net/ethernet/mellanox/mlx5/core/fs_core.h index 577d056bf3df..81eafc7b9dd9 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/fs_core.h +++ b/drivers/net/ethernet/mellanox/mlx5/core/fs_core.h @@ -199,6 +199,11 @@ struct mlx5_flow_root_namespace { int mlx5_init_fc_stats(struct mlx5_core_dev *dev); void mlx5_cleanup_fc_stats(struct mlx5_core_dev *dev); +void mlx5_fc_queue_stats_work(struct mlx5_core_dev *dev, + struct delayed_work *dwork, + unsigned long delay); +void mlx5_fc_update_sampling_interval(struct mlx5_core_dev *dev, + unsigned long interval); int mlx5_init_fs(struct mlx5_core_dev *dev); void mlx5_cleanup_fs(struct mlx5_core_dev *dev); |