diff options
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx5/core/lag.c')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/lag.c | 66 |
1 files changed, 45 insertions, 21 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/lag.c b/drivers/net/ethernet/mellanox/mlx5/core/lag.c index c6ad5ca46877..874c70e8cc54 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/lag.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/lag.c @@ -42,7 +42,7 @@ * Beware of lock dependencies (preferably, no locks should be acquired * under it). */ -static DEFINE_MUTEX(lag_mutex); +static DEFINE_SPINLOCK(lag_lock); static int mlx5_cmd_create_lag(struct mlx5_core_dev *dev, u8 remap_port1, u8 remap_port2) @@ -274,9 +274,9 @@ static void mlx5_do_bond(struct mlx5_lag *ldev) if (!dev0 || !dev1) return; - mutex_lock(&lag_mutex); + spin_lock(&lag_lock); tracker = ldev->tracker; - mutex_unlock(&lag_mutex); + spin_unlock(&lag_lock); do_bond = tracker.is_bonded && mlx5_lag_check_prereq(ldev); @@ -458,9 +458,9 @@ static int mlx5_lag_netdev_event(struct notifier_block *this, break; } - mutex_lock(&lag_mutex); + spin_lock(&lag_lock); ldev->tracker = tracker; - mutex_unlock(&lag_mutex); + spin_unlock(&lag_lock); if (changed) mlx5_queue_bond_work(ldev, 0); @@ -502,7 +502,7 @@ static void mlx5_lag_dev_add_pf(struct mlx5_lag *ldev, if (fn >= MLX5_MAX_PORTS) return; - mutex_lock(&lag_mutex); + spin_lock(&lag_lock); ldev->pf[fn].dev = dev; ldev->pf[fn].netdev = netdev; ldev->tracker.netdev_state[fn].link_up = 0; @@ -510,7 +510,7 @@ static void mlx5_lag_dev_add_pf(struct mlx5_lag *ldev, dev->priv.lag = ldev; - mutex_unlock(&lag_mutex); + spin_unlock(&lag_lock); } static void mlx5_lag_dev_remove_pf(struct mlx5_lag *ldev, @@ -525,11 +525,11 @@ static void mlx5_lag_dev_remove_pf(struct mlx5_lag *ldev, if (i == MLX5_MAX_PORTS) return; - mutex_lock(&lag_mutex); + spin_lock(&lag_lock); memset(&ldev->pf[i], 0, sizeof(*ldev->pf)); dev->priv.lag = NULL; - mutex_unlock(&lag_mutex); + spin_unlock(&lag_lock); } /* Must be called with intf_mutex held */ @@ -607,10 +607,10 @@ bool mlx5_lag_is_roce(struct mlx5_core_dev *dev) struct mlx5_lag *ldev; bool res; - mutex_lock(&lag_mutex); + spin_lock(&lag_lock); ldev = mlx5_lag_dev_get(dev); res = ldev && __mlx5_lag_is_roce(ldev); - mutex_unlock(&lag_mutex); + spin_unlock(&lag_lock); return res; } @@ -621,10 +621,10 @@ bool mlx5_lag_is_active(struct mlx5_core_dev *dev) struct mlx5_lag *ldev; bool res; - mutex_lock(&lag_mutex); + spin_lock(&lag_lock); ldev = mlx5_lag_dev_get(dev); res = ldev && __mlx5_lag_is_active(ldev); - mutex_unlock(&lag_mutex); + spin_unlock(&lag_lock); return res; } @@ -635,10 +635,10 @@ bool mlx5_lag_is_sriov(struct mlx5_core_dev *dev) struct mlx5_lag *ldev; bool res; - mutex_lock(&lag_mutex); + spin_lock(&lag_lock); ldev = mlx5_lag_dev_get(dev); res = ldev && __mlx5_lag_is_sriov(ldev); - mutex_unlock(&lag_mutex); + spin_unlock(&lag_lock); return res; } @@ -664,7 +664,7 @@ struct net_device *mlx5_lag_get_roce_netdev(struct mlx5_core_dev *dev) struct net_device *ndev = NULL; struct mlx5_lag *ldev; - mutex_lock(&lag_mutex); + spin_lock(&lag_lock); ldev = mlx5_lag_dev_get(dev); if (!(ldev && __mlx5_lag_is_roce(ldev))) @@ -681,12 +681,36 @@ struct net_device *mlx5_lag_get_roce_netdev(struct mlx5_core_dev *dev) dev_hold(ndev); unlock: - mutex_unlock(&lag_mutex); + spin_unlock(&lag_lock); return ndev; } EXPORT_SYMBOL(mlx5_lag_get_roce_netdev); +u8 mlx5_lag_get_slave_port(struct mlx5_core_dev *dev, + struct net_device *slave) +{ + struct mlx5_lag *ldev; + u8 port = 0; + + spin_lock(&lag_lock); + ldev = mlx5_lag_dev_get(dev); + if (!(ldev && __mlx5_lag_is_roce(ldev))) + goto unlock; + + if (ldev->pf[MLX5_LAG_P1].netdev == slave) + port = MLX5_LAG_P1; + else + port = MLX5_LAG_P2; + + port = ldev->v2p_map[port]; + +unlock: + spin_unlock(&lag_lock); + return port; +} +EXPORT_SYMBOL(mlx5_lag_get_slave_port); + bool mlx5_lag_intf_add(struct mlx5_interface *intf, struct mlx5_priv *priv) { struct mlx5_core_dev *dev = container_of(priv, struct mlx5_core_dev, @@ -723,7 +747,7 @@ int mlx5_lag_query_cong_counters(struct mlx5_core_dev *dev, memset(values, 0, sizeof(*values) * num_counters); - mutex_lock(&lag_mutex); + spin_lock(&lag_lock); ldev = mlx5_lag_dev_get(dev); if (ldev && __mlx5_lag_is_roce(ldev)) { num_ports = MLX5_MAX_PORTS; @@ -733,6 +757,7 @@ int mlx5_lag_query_cong_counters(struct mlx5_core_dev *dev, num_ports = 1; mdev[MLX5_LAG_P1] = dev; } + spin_unlock(&lag_lock); for (i = 0; i < num_ports; ++i) { u32 in[MLX5_ST_SZ_DW(query_cong_statistics_in)] = {}; @@ -742,14 +767,13 @@ int mlx5_lag_query_cong_counters(struct mlx5_core_dev *dev, ret = mlx5_cmd_exec_inout(mdev[i], query_cong_statistics, in, out); if (ret) - goto unlock; + goto free; for (j = 0; j < num_counters; ++j) values[j] += be64_to_cpup((__be64 *)(out + offsets[j])); } -unlock: - mutex_unlock(&lag_mutex); +free: kvfree(out); return ret; } |