From 6c63efe4cfabf230a8ed4b1d880249875ffdac13 Mon Sep 17 00:00:00 2001 From: Eran Ben Elisha Date: Tue, 29 May 2018 11:06:31 +0300 Subject: net/mlx5e: Remove redundant active_channels indication Now, when all channels stats are saved regardless of the channel's state {open, closed}, we can safely remove this indication and the stats spin lock which protects it. Fixes: 76c3810bade3 ("net/mlx5e: Avoid reset netdev stats on configuration changes") Signed-off-by: Eran Ben Elisha Signed-off-by: Saeed Mahameed --- drivers/net/ethernet/mellanox/mlx5/core/en.h | 2 -- drivers/net/ethernet/mellanox/mlx5/core/en_main.c | 7 ------- drivers/net/ethernet/mellanox/mlx5/core/en_rep.c | 6 ------ drivers/net/ethernet/mellanox/mlx5/core/en_stats.c | 5 ----- 4 files changed, 20 deletions(-) (limited to 'drivers/net/ethernet') diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en.h b/drivers/net/ethernet/mellanox/mlx5/core/en.h index 1c04df043e07..372cdf8a496c 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en.h +++ b/drivers/net/ethernet/mellanox/mlx5/core/en.h @@ -777,8 +777,6 @@ struct mlx5e_priv { struct mutex state_lock; /* Protects Interface state */ struct mlx5e_rq drop_rq; - rwlock_t stats_lock; /* Protects channels SW stats updates */ - bool channels_active; struct mlx5e_channels channels; u32 tisn[MLX5E_MAX_NUM_TC]; struct mlx5e_rqt indir_rqt; diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c index adc55de6d4f4..dd119bad102d 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c @@ -2669,9 +2669,6 @@ void mlx5e_activate_priv_channels(struct mlx5e_priv *priv) mlx5e_build_tx2sq_maps(priv); mlx5e_activate_channels(&priv->channels); - write_lock(&priv->stats_lock); - priv->channels_active = true; - write_unlock(&priv->stats_lock); netif_tx_start_all_queues(priv->netdev); if (MLX5_VPORT_MANAGER(priv->mdev)) @@ -2693,9 +2690,6 @@ void mlx5e_deactivate_priv_channels(struct mlx5e_priv *priv) */ netif_tx_stop_all_queues(priv->netdev); netif_tx_disable(priv->netdev); - write_lock(&priv->stats_lock); - priv->channels_active = false; - write_unlock(&priv->stats_lock); mlx5e_deactivate_channels(&priv->channels); } @@ -4269,7 +4263,6 @@ static void mlx5e_build_nic_netdev_priv(struct mlx5_core_dev *mdev, profile->max_nch(mdev), netdev->mtu); mutex_init(&priv->state_lock); - rwlock_init(&priv->stats_lock); INIT_WORK(&priv->update_carrier_work, mlx5e_update_carrier_work); INIT_WORK(&priv->set_rx_mode_work, mlx5e_set_rx_mode_work); diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c b/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c index de6364125f0f..1fb4835eac72 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c @@ -130,10 +130,6 @@ static void mlx5e_rep_update_sw_counters(struct mlx5e_priv *priv) struct mlx5e_sq_stats *sq_stats; int i, j; - read_lock(&priv->stats_lock); - if (!priv->channels_active) - goto out; - memset(s, 0, sizeof(*s)); for (i = 0; i < priv->channels.num; i++) { struct mlx5e_channel *c = priv->channels.c[i]; @@ -150,8 +146,6 @@ static void mlx5e_rep_update_sw_counters(struct mlx5e_priv *priv) s->tx_bytes += sq_stats->bytes; } } -out: - read_unlock(&priv->stats_lock); } static void mlx5e_rep_get_ethtool_stats(struct net_device *dev, diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_stats.c b/drivers/net/ethernet/mellanox/mlx5/core/en_stats.c index 3b2aed43f660..697dc7397ba2 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_stats.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_stats.c @@ -114,9 +114,6 @@ void mlx5e_grp_sw_update_stats(struct mlx5e_priv *priv) int i; memset(s, 0, sizeof(*s)); - read_lock(&priv->stats_lock); - if (!priv->channels_active) - goto out; for (i = 0; i < priv->profile->max_nch(priv->mdev); i++) { struct mlx5e_channel_stats *channel_stats = @@ -177,8 +174,6 @@ void mlx5e_grp_sw_update_stats(struct mlx5e_priv *priv) } memcpy(&priv->stats.sw, s, sizeof(*s)); -out: - read_unlock(&priv->stats_lock); } static const struct counter_desc q_stats_desc[] = { -- cgit v1.2.3