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| author |   Eran Ben Elisha <eranbe@mellanox.com> | 2015-03-30 17:45:24 +0300 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2015-03-31 16:36:50 -0400 |
| commit | 3da8a36cc5c2a172bb42f8dc89638f5b41d7d7a6 (patch) | |
| tree | dd68732106614f7711cb3f72e886a2d0c3b5d10b /drivers/net/ethernet/mellanox/mlx4/mlx4_en.h | |
| parent | net/mlx4_en: Support general selective view of ethtool statistics (diff) | |
| download | linux-dev-3da8a36cc5c2a172bb42f8dc89638f5b41d7d7a6.tar.xz linux-dev-3da8a36cc5c2a172bb42f8dc89638f5b41d7d7a6.zip | |
net/mlx4_en: Protect access to the statistics bitmap
This will allow parallel access to the statistics bitmap.
A pre-step for adding PFC counters, where the statistics bitmap
can be dynamically changed when modifying the PFC setting.
Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Hadar Hen Zion <hadarh@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to '')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx4/mlx4_en.h | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h b/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h index a612bfd921f7..d5d971a408f2 100644 --- a/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h +++ b/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h @@ -485,6 +485,11 @@ enum { #define MLX4_EN_MAC_HASH_SIZE (1 << BITS_PER_BYTE) #define MLX4_EN_MAC_HASH_IDX 5 +struct mlx4_en_stats_bitmap { + DECLARE_BITMAP(bitmap, NUM_ALL_STATS); + struct mutex mutex; /* for mutual access to stats bitmap */ +}; + struct mlx4_en_priv { struct mlx4_en_dev *mdev; struct mlx4_en_port_profile *prof; @@ -561,7 +566,7 @@ struct mlx4_en_priv { struct mlx4_en_perf_stats pstats; struct mlx4_en_pkt_stats pkstats; struct mlx4_en_port_stats port_stats; - DECLARE_BITMAP(stats_bitmap, NUM_ALL_STATS); + struct mlx4_en_stats_bitmap stats_bitmap; struct list_head mc_list; struct list_head curr_list; u64 broadcast_id; @@ -731,7 +736,7 @@ int mlx4_en_start_port(struct net_device *dev); void mlx4_en_stop_port(struct net_device *dev, int detach); void mlx4_en_set_stats_bitmap(struct mlx4_dev *dev, - unsigned long *stats_bitmap); + struct mlx4_en_stats_bitmap *stats_bitmap); void mlx4_en_free_resources(struct mlx4_en_priv *priv); int mlx4_en_alloc_resources(struct mlx4_en_priv *priv); |