From e1f24a79f424ddb03828de7c0152668c9a30146e Mon Sep 17 00:00:00 2001
From: Parav Pandit <parav@mellanox.com>
Date: Sun, 16 Apr 2017 07:29:29 +0300
Subject: 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>
---
include/linux/mlx5/mlx5_ifc.h | 18 +++++++++---------
1 file changed, 9 insertions(+), 9 deletions(-)
(limited to 'include/linux/mlx5')
diff --git a/include/linux/mlx5/mlx5_ifc.h b/include/linux/mlx5/mlx5_ifc.h
index 4da6e803b627..954f42c268a4 100644
--- a/include/linux/mlx5/mlx5_ifc.h
+++ b/include/linux/mlx5/mlx5_ifc.h
@@ -4735,17 +4735,17 @@ struct mlx5_ifc_query_cong_statistics_out_bits {
u8 reserved_at_40[0x40];
- u8 cur_flows[0x20];
+ u8 rp_cur_flows[0x20];
u8 sum_flows[0x20];
- u8 cnp_ignored_high[0x20];
+ u8 rp_cnp_ignored_high[0x20];
- u8 cnp_ignored_low[0x20];
+ u8 rp_cnp_ignored_low[0x20];
- u8 cnp_handled_high[0x20];
+ u8 rp_cnp_handled_high[0x20];
- u8 cnp_handled_low[0x20];
+ u8 rp_cnp_handled_low[0x20];
u8 reserved_at_140[0x100];
@@ -4755,13 +4755,13 @@ struct mlx5_ifc_query_cong_statistics_out_bits {
u8 accumulators_period[0x20];
- u8 ecn_marked_roce_packets_high[0x20];
+ u8 np_ecn_marked_roce_packets_high[0x20];
- u8 ecn_marked_roce_packets_low[0x20];
+ u8 np_ecn_marked_roce_packets_low[0x20];
- u8 cnps_sent_high[0x20];
+ u8 np_cnp_sent_high[0x20];
- u8 cnps_sent_low[0x20];
+ u8 np_cnp_sent_low[0x20];
u8 reserved_at_320[0x560];
};
--
cgit