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net/mlx5: Add parent group support in rate group structure

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Introduce a `parent` field in the `mlx5_esw_rate_group` structure to
support hierarchical group relationships.

The `parent` can reference another group or be set to `NULL`,
indicating the group is connected to the root TSAR.

This change enables the ability to manage groups in a hierarchical
structure for future enhancements.

Signed-off-by: Carolina Jubran <cjubran@nvidia.com>
Reviewed-by: Cosmin Ratiu <cratiu@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Reviewed-by: Daniel Machon <daniel.machon@microchip.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
This commit is contained in:
Carolina Jubran
2024-10-16 20:36:05 +03:00
committed by Paolo Abeni
parent 4235fe2cb8
commit 54200dbc68
1 changed files with 11 additions and 6 deletions
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17
drivers/net/ethernet/mellanox/mlx5/core/esw/qos.c
View File

@@ -72,6 +72,8 @@ struct mlx5_esw_rate_group {
u32 min_rate;
/* A computed value indicating relative min_rate between group members. */
u32 bw_share;
/* The parent group of this group. */
struct mlx5_esw_rate_group *parent;
/* Membership in the parent list. */
struct list_head parent_entry;
/* The type of this group node in the rate hierarchy. */
@@ -505,7 +507,8 @@ static int esw_qos_vport_update_group(struct mlx5_vport *vport,
}
static struct mlx5_esw_rate_group *
__esw_qos_alloc_rate_group(struct mlx5_eswitch *esw, u32 tsar_ix, enum sched_node_type type)
__esw_qos_alloc_rate_group(struct mlx5_eswitch *esw, u32 tsar_ix, enum sched_node_type type,
struct mlx5_esw_rate_group *parent)
{
struct mlx5_esw_rate_group *group;
@@ -516,6 +519,7 @@ __esw_qos_alloc_rate_group(struct mlx5_eswitch *esw, u32 tsar_ix, enum sched_nod
group->esw = esw;
group->tsar_ix = tsar_ix;
group->type = type;
group->parent = parent;
INIT_LIST_HEAD(&group->members);
list_add_tail(&group->parent_entry, &esw->qos.domain->groups);
return group;
@@ -528,7 +532,8 @@ static void __esw_qos_free_rate_group(struct mlx5_esw_rate_group *group)
}
static struct mlx5_esw_rate_group *
__esw_qos_create_vports_rate_group(struct mlx5_eswitch *esw, struct netlink_ext_ack *extack)
__esw_qos_create_vports_rate_group(struct mlx5_eswitch *esw, struct mlx5_esw_rate_group *parent,
struct netlink_ext_ack *extack)
{
struct mlx5_esw_rate_group *group;
u32 tsar_ix;
@@ -540,7 +545,7 @@ __esw_qos_create_vports_rate_group(struct mlx5_eswitch *esw, struct netlink_ext_
return ERR_PTR(err);
}
group = __esw_qos_alloc_rate_group(esw, tsar_ix, SCHED_NODE_TYPE_VPORTS_TSAR);
group = __esw_qos_alloc_rate_group(esw, tsar_ix, SCHED_NODE_TYPE_VPORTS_TSAR, parent);
if (!group) {
NL_SET_ERR_MSG_MOD(extack, "E-Switch alloc group failed");
err = -ENOMEM;
@@ -583,7 +588,7 @@ esw_qos_create_vports_rate_group(struct mlx5_eswitch *esw, struct netlink_ext_ac
if (err)
return ERR_PTR(err);
group = __esw_qos_create_vports_rate_group(esw, extack);
group = __esw_qos_create_vports_rate_group(esw, NULL, extack);
if (IS_ERR(group))
esw_qos_put(esw);
@@ -628,13 +633,13 @@ static int esw_qos_create(struct mlx5_eswitch *esw, struct netlink_ext_ack *exta
}
if (MLX5_CAP_QOS(dev, log_esw_max_sched_depth)) {
esw->qos.group0 = __esw_qos_create_vports_rate_group(esw, extack);
esw->qos.group0 = __esw_qos_create_vports_rate_group(esw, NULL, extack);
} else {
/* The eswitch doesn't support scheduling groups.
* Create a software-only group0 using the root TSAR to attach vport QoS to.
*/
if (!__esw_qos_alloc_rate_group(esw, esw->qos.root_tsar_ix,
SCHED_NODE_TYPE_VPORTS_TSAR))
SCHED_NODE_TYPE_VPORTS_TSAR, NULL))
esw->qos.group0 = ERR_PTR(-ENOMEM);
}
if (IS_ERR(esw->qos.group0)) {