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| author | Roi Dayan <roid@mellanox.com> | 2018-07-02 14:06:02 +0300 |
|---|---|---|
| committer | Saeed Mahameed <saeedm@mellanox.com> | 2019-03-01 12:04:17 -0800 |
| commit | 316d5f72b4c1d4122f83cccbc9002e7b13660077 (patch) | |
| tree | 3708d599211c9c7a30e12d7d92a9cf7e4459f9aa /drivers/net | |
| parent | b4a23329e2e940cdec3b5eae781c1f7d4c669533 (diff) | |
| download | linux-stable-316d5f72b4c1d4122f83cccbc9002e7b13660077.tar.gz linux-stable-316d5f72b4c1d4122f83cccbc9002e7b13660077.tar.bz2 linux-stable-316d5f72b4c1d4122f83cccbc9002e7b13660077.zip | |
net/mlx5e: Always query offloaded tc peer rule counter
Under multipath when encap rules are duplicated to HW in the driver,
it's possible for one flow to be currently un-offloaded (e.g. lack of
next-hop route or neigh entry) while the other flow is offloaded. As
such, we move to query the counters of both flows at all times.
Signed-off-by: Roi Dayan <roid@mellanox.com>
Reviewed-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/en_tc.c | 26 |
1 files changed, 15 insertions, 11 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c index 2f0c631847fd..c44cb5083d55 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c @@ -3078,23 +3078,25 @@ int mlx5e_stats_flower(struct net_device *dev, struct mlx5e_priv *priv, struct mlx5_eswitch *peer_esw; struct mlx5e_tc_flow *flow; struct mlx5_fc *counter; - u64 bytes; - u64 packets; - u64 lastuse; + u64 lastuse = 0; + u64 packets = 0; + u64 bytes = 0; flow = rhashtable_lookup_fast(tc_ht, &f->cookie, tc_ht_params); if (!flow || !same_flow_direction(flow, flags)) return -EINVAL; - if (!(flow->flags & MLX5E_TC_FLOW_OFFLOADED)) - return 0; - - counter = mlx5e_tc_get_counter(flow); - if (!counter) - return 0; + if (flow->flags & MLX5E_TC_FLOW_OFFLOADED) { + counter = mlx5e_tc_get_counter(flow); + if (!counter) + return 0; - mlx5_fc_query_cached(counter, &bytes, &packets, &lastuse); + mlx5_fc_query_cached(counter, &bytes, &packets, &lastuse); + } + /* Under multipath it's possible for one rule to be currently + * un-offloaded while the other rule is offloaded. + */ peer_esw = mlx5_devcom_get_peer_data(devcom, MLX5_DEVCOM_ESW_OFFLOADS); if (!peer_esw) goto out; @@ -3106,6 +3108,8 @@ int mlx5e_stats_flower(struct net_device *dev, struct mlx5e_priv *priv, u64 lastuse2; counter = mlx5e_tc_get_counter(flow->peer_flow); + if (!counter) + goto no_peer_counter; mlx5_fc_query_cached(counter, &bytes2, &packets2, &lastuse2); bytes += bytes2; @@ -3113,8 +3117,8 @@ int mlx5e_stats_flower(struct net_device *dev, struct mlx5e_priv *priv, lastuse = max_t(u64, lastuse, lastuse2); } +no_peer_counter: mlx5_devcom_release_peer_data(devcom, MLX5_DEVCOM_ESW_OFFLOADS); - out: flow_stats_update(&f->stats, bytes, packets, lastuse); |