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| author | Parav Pandit <parav@mellanox.com> | 2017-04-16 06:29:29 +0200 |
|---|---|---|
| committer | Doug Ledford <dledford@redhat.com> | 2017-04-21 18:29:31 +0200 |
| commit | e1f24a79f424ddb03828de7c0152668c9a30146e (patch) | |
| tree | b488879662188619942742e45cd77a7828db94eb /drivers/infiniband/hw/mlx5/cmd.h | |
| parent | IB/mthca: Check validity of output parameter pointer (diff) | |
| download | linux-e1f24a79f424ddb03828de7c0152668c9a30146e.tar.xz linux-e1f24a79f424ddb03828de7c0152668c9a30146e.zip | |
IB/mlx5: Support congestion related counters
This patch adds support to query the congestion related hardware counters
through new command and links them with other hw counters being available
in hw_counters sysfs location.
In order to reuse existing infrastructure it renames related q_counter
data structures to more generic counters to reflect q_counters and
congestion counters and maybe some other counters in the future.
New hardware counters:
* rp_cnp_handled - CNP packets handled by the reaction point
* rp_cnp_ignored - CNP packets ignored by the reaction point
* np_cnp_sent - CNP packets sent by notification point to respond to
CE marked RoCE packets
* np_ecn_marked_roce_packets - CE marked RoCE packets received by
notification point
It also avoids returning ENOSYS which is specific for invalid
system call and produces the following checkpatch.pl warning.
WARNING: ENOSYS means 'invalid syscall nr' and nothing else
+ return -ENOSYS;
Signed-off-by: Parav Pandit <parav@mellanox.com>
Reviewed-by: Eli Cohen <eli@mellanox.com>
Reviewed-by: Daniel Jurgens <danielj@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers/infiniband/hw/mlx5/cmd.h')
| -rw-r--r-- | drivers/infiniband/hw/mlx5/cmd.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/mlx5/cmd.h b/drivers/infiniband/hw/mlx5/cmd.h index 7ca8a7b6434d..fa09228193a6 100644 --- a/drivers/infiniband/hw/mlx5/cmd.h +++ b/drivers/infiniband/hw/mlx5/cmd.h @@ -37,4 +37,6 @@ #include <linux/mlx5/driver.h> int mlx5_cmd_null_mkey(struct mlx5_core_dev *dev, u32 *null_mkey); +int mlx5_cmd_query_cong_counter(struct mlx5_core_dev *dev, + bool reset, void *out, int out_size); #endif /* MLX5_IB_CMD_H */ |