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mlxsw: spectrum_ethtool: Expose transceiver_overheat counter

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Add structures for port statistics which read from core and not directly
from registers.

When netdev's ethtool statistics are queried, query the corresponding
module's overheat counter from core and expose it as
"transceiver_overheat".

Signed-off-by: Amit Cohen <amcohen@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Amit Cohen 2020-09-27 10:50:15 +03:00 committed by David S. Miller
parent 05cf5828bc
commit 69f6d4ee68
1 changed files with 56 additions and 1 deletions
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57
drivers/net/ethernet/mellanox/mlxsw/spectrum_ethtool.c
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@ -2,6 +2,7 @@
/* Copyright (c) 2020 Mellanox Technologies. All rights reserved */
#include "reg.h"
#include "core.h"
#include "spectrum.h"
#include "core_env.h"
@ -552,6 +553,37 @@ static struct mlxsw_sp_port_hw_stats mlxsw_sp_port_hw_tc_stats[] = {
#define MLXSW_SP_PORT_HW_TC_STATS_LEN ARRAY_SIZE(mlxsw_sp_port_hw_tc_stats)
struct mlxsw_sp_port_stats {
char str[ETH_GSTRING_LEN];
u64 (*getter)(struct mlxsw_sp_port *mlxsw_sp_port);
};
static u64
mlxsw_sp_port_get_transceiver_overheat_stats(struct mlxsw_sp_port *mlxsw_sp_port)
{
struct mlxsw_sp_port_mapping port_mapping = mlxsw_sp_port->mapping;
struct mlxsw_core *mlxsw_core = mlxsw_sp_port->mlxsw_sp->core;
u64 stats;
int err;
err = mlxsw_env_module_overheat_counter_get(mlxsw_core,
port_mapping.module,
&stats);
if (err)
return mlxsw_sp_port->module_overheat_initial_val;
return stats - mlxsw_sp_port->module_overheat_initial_val;
}
static struct mlxsw_sp_port_stats mlxsw_sp_port_transceiver_stats[] = {
{
.str = "transceiver_overheat",
.getter = mlxsw_sp_port_get_transceiver_overheat_stats,
},
};
#define MLXSW_SP_PORT_HW_TRANSCEIVER_STATS_LEN ARRAY_SIZE(mlxsw_sp_port_transceiver_stats)
#define MLXSW_SP_PORT_ETHTOOL_STATS_LEN (MLXSW_SP_PORT_HW_STATS_LEN + \
MLXSW_SP_PORT_HW_RFC_2863_STATS_LEN + \
MLXSW_SP_PORT_HW_RFC_2819_STATS_LEN + \
@ -561,7 +593,8 @@ static struct mlxsw_sp_port_hw_stats mlxsw_sp_port_hw_tc_stats[] = {
(MLXSW_SP_PORT_HW_PRIO_STATS_LEN * \
IEEE_8021QAZ_MAX_TCS) + \
(MLXSW_SP_PORT_HW_TC_STATS_LEN * \
TC_MAX_QUEUE))
TC_MAX_QUEUE) + \
MLXSW_SP_PORT_HW_TRANSCEIVER_STATS_LEN)
static void mlxsw_sp_port_get_prio_strings(u8 **p, int prio)
{
@ -637,6 +670,12 @@ static void mlxsw_sp_port_get_strings(struct net_device *dev,
mlxsw_sp_port_get_tc_strings(&p, i);
mlxsw_sp_port->mlxsw_sp->ptp_ops->get_stats_strings(&p);
for (i = 0; i < MLXSW_SP_PORT_HW_TRANSCEIVER_STATS_LEN; i++) {
memcpy(p, mlxsw_sp_port_transceiver_stats[i].str,
ETH_GSTRING_LEN);
p += ETH_GSTRING_LEN;
}
break;
}
}
@ -732,6 +771,17 @@ static void __mlxsw_sp_port_get_stats(struct net_device *dev,
}
}
static void __mlxsw_sp_port_get_env_stats(struct net_device *dev, u64 *data, int data_index,
struct mlxsw_sp_port_stats *port_stats,
int len)
{
struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
int i;
for (i = 0; i < len; i++)
data[data_index + i] = port_stats[i].getter(mlxsw_sp_port);
}
static void mlxsw_sp_port_get_stats(struct net_device *dev,
struct ethtool_stats *stats, u64 *data)
{
@ -786,6 +836,11 @@ static void mlxsw_sp_port_get_stats(struct net_device *dev,
mlxsw_sp_port->mlxsw_sp->ptp_ops->get_stats(mlxsw_sp_port,
data, data_index);
data_index += mlxsw_sp_port->mlxsw_sp->ptp_ops->get_stats_count();
/* Transceiver counters */
__mlxsw_sp_port_get_env_stats(dev, data, data_index, mlxsw_sp_port_transceiver_stats,
MLXSW_SP_PORT_HW_TRANSCEIVER_STATS_LEN);
data_index += MLXSW_SP_PORT_HW_TRANSCEIVER_STATS_LEN;
}
static int mlxsw_sp_port_get_sset_count(struct net_device *dev, int sset)