diff options
| author |   Carolina Jubran <cjubran@nvidia.com> | 2025-03-10 23:26:54 +0200 |
|---|---|---|
| committer |   Paolo Abeni <pabeni@redhat.com> | 2025-03-18 10:36:55 +0100 |
| commit | 498bd79cb92be572258a587a4abee67d464ba1de (patch) | |
| tree | d250809cb00f320a1e3308e48a7f55124a8688c7 | |
| parent | net/mlx5: Rename devlink rate parent set function for leaf nodes (diff) | |
| download | wireguard-linux-498bd79cb92be572258a587a4abee67d464ba1de.tar.xz wireguard-linux-498bd79cb92be572258a587a4abee67d464ba1de.zip | |
net/mlx5: Introduce hierarchy level tracking on scheduling nodes
Add a `level` field to `mlx5_esw_sched_node` to track the hierarchy
depth of each scheduling node. This allows enforcement of the
scheduling depth constraints based on `log_esw_max_sched_depth`.
Modify `esw_qos_node_set_parent()` and `__esw_qos_alloc_node()` to
correctly assign hierarchy levels. Ensure that nodes inherit their
parent’s level incrementally.
Signed-off-by: Carolina Jubran <cjubran@nvidia.com>
Reviewed-by: Cosmin Ratiu <cratiu@nvidia.com>
Reviewed-by: Dragos Tatulea <dtatulea@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/1741642016-44918-3-git-send-email-tariqt@nvidia.com
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/esw/qos.c | 19 |
1 files changed, 16 insertions, 3 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/esw/qos.c b/drivers/net/ethernet/mellanox/mlx5/core/esw/qos.c index c56027838a57..959e4446327d 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/esw/qos.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/esw/qos.c @@ -90,8 +90,22 @@ struct mlx5_esw_sched_node { struct list_head children; /* Valid only if this node is associated with a vport. */ struct mlx5_vport *vport; + /* Level in the hierarchy. The root node level is 1. */ + u8 level; }; +static void esw_qos_node_attach_to_parent(struct mlx5_esw_sched_node *node) +{ + if (!node->parent) { + /* Root children are assigned a depth level of 2. */ + node->level = 2; + list_add_tail(&node->entry, &node->esw->qos.domain->nodes); + } else { + node->level = node->parent->level + 1; + list_add_tail(&node->entry, &node->parent->children); + } +} + static void esw_qos_node_set_parent(struct mlx5_esw_sched_node *node, struct mlx5_esw_sched_node *parent) { @@ -99,6 +113,7 @@ esw_qos_node_set_parent(struct mlx5_esw_sched_node *node, struct mlx5_esw_sched_ node->parent = parent; list_add_tail(&node->entry, &parent->children); node->esw = parent->esw; + node->level = parent->level + 1; } void mlx5_esw_qos_vport_qos_free(struct mlx5_vport *vport) @@ -358,7 +373,6 @@ static struct mlx5_esw_sched_node * __esw_qos_alloc_node(struct mlx5_eswitch *esw, u32 tsar_ix, enum sched_node_type type, struct mlx5_esw_sched_node *parent) { - struct list_head *parent_children; struct mlx5_esw_sched_node *node; node = kzalloc(sizeof(*node), GFP_KERNEL); @@ -370,8 +384,7 @@ __esw_qos_alloc_node(struct mlx5_eswitch *esw, u32 tsar_ix, enum sched_node_type node->type = type; node->parent = parent; INIT_LIST_HEAD(&node->children); - parent_children = parent ? &parent->children : &esw->qos.domain->nodes; - list_add_tail(&node->entry, parent_children); + esw_qos_node_attach_to_parent(node); return node; } |