From 3579032c08c1d313bb53e67e97e9ea77bed48014 Mon Sep 17 00:00:00 2001 From: Rahul Rameshbabu Date: Wed, 3 Apr 2024 14:28:42 -0700 Subject: [PATCH] net/mlx5e: Implement ethtool hardware timestamping statistics Feed driver statistics counters related to hardware timestamping to standardized ethtool hardware timestamping statistics group. Signed-off-by: Rahul Rameshbabu Reviewed-by: Dragos Tatulea Link: https://lore.kernel.org/r/20240403212931.128541-5-rrameshbabu@nvidia.com Signed-off-by: Jakub Kicinski --- .../ethernet/mellanox/mlx5/core/en_ethtool.c | 9 ++++ .../ethernet/mellanox/mlx5/core/en_stats.c | 45 +++++++++++++++++++ .../ethernet/mellanox/mlx5/core/en_stats.h | 2 + 3 files changed, 56 insertions(+) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c b/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c index 93a13a478c117d..a4fe164a1c4c28 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c @@ -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 }; diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_stats.c b/drivers/net/ethernet/mellanox/mlx5/core/en_stats.c index aa1de8bf084102..e211c41cec06a8 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_stats.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_stats.c @@ -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) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_stats.h b/drivers/net/ethernet/mellanox/mlx5/core/en_stats.h index b0090ad133aaf9..9cee4c9472e99f 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_stats.h +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_stats.h @@ -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);