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net/mlx5e: Implement ethtool hardware timestamping statistics

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Feed driver statistics counters related to hardware timestamping to
standardized ethtool hardware timestamping statistics group.

Signed-off-by: Rahul Rameshbabu <rrameshbabu@nvidia.com>
Reviewed-by: Dragos Tatulea <dtatulea@nvidia.com>
Link: https://lore.kernel.org/r/20240403212931.128541-5-rrameshbabu@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Rahul Rameshbabu 2024-04-03 14:28:42 -07:00 committed by Jakub Kicinski
parent cd429012f0
commit 3579032c08
3 changed files with 56 additions and 0 deletions
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9
drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
View File

@ -2387,6 +2387,14 @@ static void mlx5e_get_rmon_stats(struct net_device *netdev,
mlx5e_stats_rmon_get(priv, rmon_stats, ranges);
}
static void mlx5e_get_ts_stats(struct net_device *netdev,
struct ethtool_ts_stats *ts_stats)
{
struct mlx5e_priv *priv = netdev_priv(netdev);
mlx5e_stats_ts_get(priv, ts_stats);
}
const struct ethtool_ops mlx5e_ethtool_ops = {
.cap_rss_ctx_supported = true,
.supported_coalesce_params = ETHTOOL_COALESCE_USECS |
@ -2436,5 +2444,6 @@ const struct ethtool_ops mlx5e_ethtool_ops = {
.get_eth_mac_stats = mlx5e_get_eth_mac_stats,
.get_eth_ctrl_stats = mlx5e_get_eth_ctrl_stats,
.get_rmon_stats = mlx5e_get_rmon_stats,
.get_ts_stats = mlx5e_get_ts_stats,
.get_link_ext_stats = mlx5e_get_link_ext_stats
};

45
drivers/net/ethernet/mellanox/mlx5/core/en_stats.c
View File

@ -1172,6 +1172,51 @@ void mlx5e_stats_rmon_get(struct mlx5e_priv *priv,
*ranges = mlx5e_rmon_ranges;
}
void mlx5e_stats_ts_get(struct mlx5e_priv *priv,
struct ethtool_ts_stats *ts_stats)
{
int i, j;
mutex_lock(&priv->state_lock);
if (priv->tx_ptp_opened) {
struct mlx5e_ptp *ptp = priv->channels.ptp;
ts_stats->pkts = 0;
ts_stats->err = 0;
ts_stats->lost = 0;
/* Aggregate stats across all TCs */
for (i = 0; i < ptp->num_tc; i++) {
struct mlx5e_ptp_cq_stats *stats =
ptp->ptpsq[i].cq_stats;
ts_stats->pkts += stats->cqe;
ts_stats->err += stats->abort + stats->err_cqe +
stats->late_cqe;
ts_stats->lost += stats->lost_cqe;
}
} else {
/* DMA layer will always successfully timestamp packets. Other
* counters do not make sense for this layer.
*/
ts_stats->pkts = 0;
/* Aggregate stats across all SQs */
for (j = 0; j < priv->channels.num; j++) {
struct mlx5e_channel *c = priv->channels.c[j];
for (i = 0; i < c->num_tc; i++) {
struct mlx5e_sq_stats *stats = c->sq[i].stats;
ts_stats->pkts += stats->timestamps;
}
}
}
mutex_unlock(&priv->state_lock);
}
#define PPORT_PHY_STATISTICAL_OFF(c) \
MLX5_BYTE_OFF(ppcnt_reg, \
counter_set.phys_layer_statistical_cntrs.c##_high)

2
drivers/net/ethernet/mellanox/mlx5/core/en_stats.h
View File

@ -128,6 +128,8 @@ void mlx5e_stats_eth_ctrl_get(struct mlx5e_priv *priv,
void mlx5e_stats_rmon_get(struct mlx5e_priv *priv,
struct ethtool_rmon_stats *rmon,
const struct ethtool_rmon_hist_range **ranges);
void mlx5e_stats_ts_get(struct mlx5e_priv *priv,
struct ethtool_ts_stats *ts_stats);
void mlx5e_get_link_ext_stats(struct net_device *dev,
struct ethtool_link_ext_stats *stats);