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authorAmir Vadai <amir@vadai.me>2016-08-18 21:09:06 +0300
committerDavid S. Miller <davem@davemloft.net>2016-08-19 16:09:55 -0700
commit6c3b4f90861c7ed59d0287b0ff7f2623f9d93d73 (patch)
treea1bdb22fd938edbd0f726b2a284d3087138d17cf /drivers
parent2c0f8ce1b584a4d7b8ff53140d21dfed99834940 (diff)
downloadlinux-6c3b4f90861c7ed59d0287b0ff7f2623f9d93d73.tar.bz2
net/mlx5: Update last-use statistics for flow rules
Set lastuse statistic, when number of packets is changed compared to last query. This was wrongly dropped when bulk counter reading was added. Fixes: a351a1b03bf1 ('net/mlx5: Introduce bulk reading of flow counters') Signed-off-by: Amir Vadai <amirva@mellanox.com> Reported-by: Paul Blakey <paulb@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/ethernet/mellanox/mlx5/core/fs_counters.c11
1 files changed, 10 insertions, 1 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fs_counters.c b/drivers/net/ethernet/mellanox/mlx5/core/fs_counters.c
index c2877e9de8a1..3a9195b4169d 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/fs_counters.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/fs_counters.c
@@ -126,12 +126,21 @@ static struct rb_node *mlx5_fc_stats_query(struct mlx5_core_dev *dev,
for (node = &first->node; node; node = rb_next(node)) {
struct mlx5_fc *counter = rb_entry(node, struct mlx5_fc, node);
struct mlx5_fc_cache *c = &counter->cache;
+ u64 packets;
+ u64 bytes;
if (counter->id > last_id)
break;
mlx5_cmd_fc_bulk_get(dev, b,
- counter->id, &c->packets, &c->bytes);
+ counter->id, &packets, &bytes);
+
+ if (c->packets == packets)
+ continue;
+
+ c->packets = packets;
+ c->bytes = bytes;
+ c->lastuse = jiffies;
}
out: