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e1f24a79f4
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>
60 lines
2.2 KiB
C
60 lines
2.2 KiB
C
/*
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* Copyright (c) 2017, Mellanox Technologies. All rights reserved.
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*
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* This software is available to you under a choice of one of two
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* licenses. You may choose to be licensed under the terms of the GNU
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* General Public License (GPL) Version 2, available from the file
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* COPYING in the main directory of this source tree, or the
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* OpenIB.org BSD license below:
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*
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* Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met:
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*
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* - Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the following
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* disclaimer.
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*
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* - Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#include "cmd.h"
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int mlx5_cmd_null_mkey(struct mlx5_core_dev *dev, u32 *null_mkey)
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{
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u32 out[MLX5_ST_SZ_DW(query_special_contexts_out)] = {};
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u32 in[MLX5_ST_SZ_DW(query_special_contexts_in)] = {};
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int err;
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MLX5_SET(query_special_contexts_in, in, opcode,
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MLX5_CMD_OP_QUERY_SPECIAL_CONTEXTS);
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err = mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
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if (!err)
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*null_mkey = MLX5_GET(query_special_contexts_out, out,
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null_mkey);
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return err;
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}
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int mlx5_cmd_query_cong_counter(struct mlx5_core_dev *dev,
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bool reset, void *out, int out_size)
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{
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u32 in[MLX5_ST_SZ_DW(query_cong_statistics_in)] = { };
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MLX5_SET(query_cong_statistics_in, in, opcode,
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MLX5_CMD_OP_QUERY_CONG_STATISTICS);
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MLX5_SET(query_cong_statistics_in, in, clear, reset);
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return mlx5_cmd_exec(dev, in, sizeof(in), out, out_size);
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}
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