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// SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
/* Copyright (c) 2022, NVIDIA CORPORATION & AFFILIATES. All rights reserved. */
#include <linux/debugfs.h>
#include "eswitch.h"
enum vnic_diag_counter {
MLX5_VNIC_DIAG_TOTAL_Q_UNDER_PROCESSOR_HANDLE,
MLX5_VNIC_DIAG_SEND_QUEUE_PRIORITY_UPDATE_FLOW,
MLX5_VNIC_DIAG_COMP_EQ_OVERRUN,
MLX5_VNIC_DIAG_ASYNC_EQ_OVERRUN,
MLX5_VNIC_DIAG_CQ_OVERRUN,
MLX5_VNIC_DIAG_INVALID_COMMAND,
MLX5_VNIC_DIAG_QOUTA_EXCEEDED_COMMAND,
};
static int mlx5_esw_query_vnic_diag(struct mlx5_vport *vport, enum vnic_diag_counter counter,
u32 *val)
{
u32 out[MLX5_ST_SZ_DW(query_vnic_env_out)] = {};
u32 in[MLX5_ST_SZ_DW(query_vnic_env_in)] = {};
struct mlx5_core_dev *dev = vport->dev;
u16 vport_num = vport->vport;
void *vnic_diag_out;
int err;
MLX5_SET(query_vnic_env_in, in, opcode, MLX5_CMD_OP_QUERY_VNIC_ENV);
MLX5_SET(query_vnic_env_in, in, vport_number, vport_num);
if (!mlx5_esw_is_manager_vport(dev->priv.eswitch, vport_num))
MLX5_SET(query_vnic_env_in, in, other_vport, 1);
err = mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
if (err)
return err;
vnic_diag_out = MLX5_ADDR_OF(query_vnic_env_out, out, vport_env);
switch (counter) {
case MLX5_VNIC_DIAG_TOTAL_Q_UNDER_PROCESSOR_HANDLE:
*val = MLX5_GET(vnic_diagnostic_statistics, vnic_diag_out, total_error_queues);
break;
case MLX5_VNIC_DIAG_SEND_QUEUE_PRIORITY_UPDATE_FLOW:
*val = MLX5_GET(vnic_diagnostic_statistics, vnic_diag_out,
send_queue_priority_update_flow);
break;
case MLX5_VNIC_DIAG_COMP_EQ_OVERRUN:
*val = MLX5_GET(vnic_diagnostic_statistics, vnic_diag_out, comp_eq_overrun);
break;
case MLX5_VNIC_DIAG_ASYNC_EQ_OVERRUN:
*val = MLX5_GET(vnic_diagnostic_statistics, vnic_diag_out, async_eq_overrun);
break;
case MLX5_VNIC_DIAG_CQ_OVERRUN:
*val = MLX5_GET(vnic_diagnostic_statistics, vnic_diag_out, cq_overrun);
break;
case MLX5_VNIC_DIAG_INVALID_COMMAND:
*val = MLX5_GET(vnic_diagnostic_statistics, vnic_diag_out, invalid_command);
break;
case MLX5_VNIC_DIAG_QOUTA_EXCEEDED_COMMAND:
*val = MLX5_GET(vnic_diagnostic_statistics, vnic_diag_out, quota_exceeded_command);
break;
}
return 0;
}
static int __show_vnic_diag(struct seq_file *file, struct mlx5_vport *vport,
enum vnic_diag_counter type)
{
u32 val = 0;
int ret;
ret = mlx5_esw_query_vnic_diag(vport, type, &val);
if (ret)
return ret;
seq_printf(file, "%d\n", val);
return 0;
}
static int total_q_under_processor_handle_show(struct seq_file *file, void *priv)
{
return __show_vnic_diag(file, file->private, MLX5_VNIC_DIAG_TOTAL_Q_UNDER_PROCESSOR_HANDLE);
}
static int send_queue_priority_update_flow_show(struct seq_file *file, void *priv)
{
return __show_vnic_diag(file, file->private,
MLX5_VNIC_DIAG_SEND_QUEUE_PRIORITY_UPDATE_FLOW);
}
static int comp_eq_overrun_show(struct seq_file *file, void *priv)
{
return __show_vnic_diag(file, file->private, MLX5_VNIC_DIAG_COMP_EQ_OVERRUN);
}
static int async_eq_overrun_show(struct seq_file *file, void *priv)
{
return __show_vnic_diag(file, file->private, MLX5_VNIC_DIAG_ASYNC_EQ_OVERRUN);
}
static int cq_overrun_show(struct seq_file *file, void *priv)
{
return __show_vnic_diag(file, file->private, MLX5_VNIC_DIAG_CQ_OVERRUN);
}
static int invalid_command_show(struct seq_file *file, void *priv)
{
return __show_vnic_diag(file, file->private, MLX5_VNIC_DIAG_INVALID_COMMAND);
}
static int quota_exceeded_command_show(struct seq_file *file, void *priv)
{
return __show_vnic_diag(file, file->private, MLX5_VNIC_DIAG_QOUTA_EXCEEDED_COMMAND);
}
DEFINE_SHOW_ATTRIBUTE(total_q_under_processor_handle);
DEFINE_SHOW_ATTRIBUTE(send_queue_priority_update_flow);
DEFINE_SHOW_ATTRIBUTE(comp_eq_overrun);
DEFINE_SHOW_ATTRIBUTE(async_eq_overrun);
DEFINE_SHOW_ATTRIBUTE(cq_overrun);
DEFINE_SHOW_ATTRIBUTE(invalid_command);
DEFINE_SHOW_ATTRIBUTE(quota_exceeded_command);
void mlx5_esw_vport_debugfs_destroy(struct mlx5_eswitch *esw, u16 vport_num)
{
struct mlx5_vport *vport = mlx5_eswitch_get_vport(esw, vport_num);
debugfs_remove_recursive(vport->dbgfs);
vport->dbgfs = NULL;
}
/* vnic diag dir name is "pf", "ecpf" or "{vf/sf}_xxxx" */
#define VNIC_DIAG_DIR_NAME_MAX_LEN 8
void mlx5_esw_vport_debugfs_create(struct mlx5_eswitch *esw, u16 vport_num, bool is_sf, u16 sf_num)
{
struct mlx5_vport *vport = mlx5_eswitch_get_vport(esw, vport_num);
struct dentry *vnic_diag;
char dir_name[VNIC_DIAG_DIR_NAME_MAX_LEN];
int err;
if (!MLX5_CAP_GEN(esw->dev, vport_group_manager))
return;
if (vport_num == MLX5_VPORT_PF) {
strcpy(dir_name, "pf");
} else if (vport_num == MLX5_VPORT_ECPF) {
strcpy(dir_name, "ecpf");
} else {
err = snprintf(dir_name, VNIC_DIAG_DIR_NAME_MAX_LEN, "%s_%d", is_sf ? "sf" : "vf",
is_sf ? sf_num : vport_num - MLX5_VPORT_FIRST_VF);
if (WARN_ON(err < 0))
return;
}
vport->dbgfs = debugfs_create_dir(dir_name, esw->dbgfs);
vnic_diag = debugfs_create_dir("vnic_diag", vport->dbgfs);
if (MLX5_CAP_GEN(esw->dev, vnic_env_queue_counters)) {
debugfs_create_file("total_q_under_processor_handle", 0444, vnic_diag, vport,
&total_q_under_processor_handle_fops);
debugfs_create_file("send_queue_priority_update_flow", 0444, vnic_diag, vport,
&send_queue_priority_update_flow_fops);
}
if (MLX5_CAP_GEN(esw->dev, eq_overrun_count)) {
debugfs_create_file("comp_eq_overrun", 0444, vnic_diag, vport,
&comp_eq_overrun_fops);
debugfs_create_file("async_eq_overrun", 0444, vnic_diag, vport,
&async_eq_overrun_fops);
}
if (MLX5_CAP_GEN(esw->dev, vnic_env_cq_overrun))
debugfs_create_file("cq_overrun", 0444, vnic_diag, vport, &cq_overrun_fops);
if (MLX5_CAP_GEN(esw->dev, invalid_command_count))
debugfs_create_file("invalid_command", 0444, vnic_diag, vport,
&invalid_command_fops);
if (MLX5_CAP_GEN(esw->dev, quota_exceeded_count))
debugfs_create_file("quota_exceeded_command", 0444, vnic_diag, vport,
"a_exceeded_command_fops);
}
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