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net/mlx5: Verify support for scheduling element and TSAR type

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Before creating a scheduling element in a NIC or E-Switch scheduler,
ensure that the requested element type is supported. If the element is
of type Transmit Scheduling Arbiter (TSAR), also verify that the
specific TSAR type is supported.

Fixes: 214baf2287 ("net/mlx5e: Support HTB offload")
Fixes: 85c5f7c920 ("net/mlx5: E-switch, Create QoS on demand")
Fixes: 0fe132eac3 ("net/mlx5: E-switch, Allow to add vports to rate groups")
Signed-off-by: Carolina Jubran <cjubran@nvidia.com>
Reviewed-by: Cosmin Ratiu <cratiu@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
This commit is contained in:
Carolina Jubran 2024-08-05 13:13:03 +03:00 committed by Saeed Mahameed
parent 452ef7f860
commit 861cd9b9cb
2 changed files with 31 additions and 20 deletions
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44
drivers/net/ethernet/mellanox/mlx5/core/esw/qos.c
View file

@ -312,6 +312,25 @@ static int esw_qos_set_group_max_rate(struct mlx5_eswitch *esw,
return err;
}
static bool esw_qos_element_type_supported(struct mlx5_core_dev *dev, int type)
{
switch (type) {
case SCHEDULING_CONTEXT_ELEMENT_TYPE_TSAR:
return MLX5_CAP_QOS(dev, esw_element_type) &
ELEMENT_TYPE_CAP_MASK_TSAR;
case SCHEDULING_CONTEXT_ELEMENT_TYPE_VPORT:
return MLX5_CAP_QOS(dev, esw_element_type) &
ELEMENT_TYPE_CAP_MASK_VPORT;
case SCHEDULING_CONTEXT_ELEMENT_TYPE_VPORT_TC:
return MLX5_CAP_QOS(dev, esw_element_type) &
ELEMENT_TYPE_CAP_MASK_VPORT_TC;
case SCHEDULING_CONTEXT_ELEMENT_TYPE_PARA_VPORT_TC:
return MLX5_CAP_QOS(dev, esw_element_type) &
ELEMENT_TYPE_CAP_MASK_PARA_VPORT_TC;
}
return false;
}
static int esw_qos_vport_create_sched_element(struct mlx5_eswitch *esw,
struct mlx5_vport *vport,
u32 max_rate, u32 bw_share)
@ -323,6 +342,9 @@ static int esw_qos_vport_create_sched_element(struct mlx5_eswitch *esw,
void *vport_elem;
int err;
if (!esw_qos_element_type_supported(dev, SCHEDULING_CONTEXT_ELEMENT_TYPE_VPORT))
return -EOPNOTSUPP;
parent_tsar_ix = group ? group->tsar_ix : esw->qos.root_tsar_ix;
MLX5_SET(scheduling_context, sched_ctx, element_type,
SCHEDULING_CONTEXT_ELEMENT_TYPE_VPORT);
@ -533,25 +555,6 @@ static int esw_qos_destroy_rate_group(struct mlx5_eswitch *esw,
return err;
}
static bool esw_qos_element_type_supported(struct mlx5_core_dev *dev, int type)
{
switch (type) {
case SCHEDULING_CONTEXT_ELEMENT_TYPE_TSAR:
return MLX5_CAP_QOS(dev, esw_element_type) &
ELEMENT_TYPE_CAP_MASK_TSAR;
case SCHEDULING_CONTEXT_ELEMENT_TYPE_VPORT:
return MLX5_CAP_QOS(dev, esw_element_type) &
ELEMENT_TYPE_CAP_MASK_VPORT;
case SCHEDULING_CONTEXT_ELEMENT_TYPE_VPORT_TC:
return MLX5_CAP_QOS(dev, esw_element_type) &
ELEMENT_TYPE_CAP_MASK_VPORT_TC;
case SCHEDULING_CONTEXT_ELEMENT_TYPE_PARA_VPORT_TC:
return MLX5_CAP_QOS(dev, esw_element_type) &
ELEMENT_TYPE_CAP_MASK_PARA_VPORT_TC;
}
return false;
}
static int esw_qos_create(struct mlx5_eswitch *esw, struct netlink_ext_ack *extack)
{
u32 tsar_ctx[MLX5_ST_SZ_DW(scheduling_context)] = {};
@ -562,7 +565,8 @@ static int esw_qos_create(struct mlx5_eswitch *esw, struct netlink_ext_ack *exta
if (!MLX5_CAP_GEN(dev, qos) || !MLX5_CAP_QOS(dev, esw_scheduling))
return -EOPNOTSUPP;
if (!esw_qos_element_type_supported(dev, SCHEDULING_CONTEXT_ELEMENT_TYPE_TSAR))
if (!esw_qos_element_type_supported(dev, SCHEDULING_CONTEXT_ELEMENT_TYPE_TSAR) ||
!(MLX5_CAP_QOS(dev, esw_tsar_type) & TSAR_TYPE_CAP_MASK_DWRR))
return -EOPNOTSUPP;
MLX5_SET(scheduling_context, tsar_ctx, element_type,

7
drivers/net/ethernet/mellanox/mlx5/core/qos.c
View file

@ -28,6 +28,9 @@ int mlx5_qos_create_leaf_node(struct mlx5_core_dev *mdev, u32 parent_id,
{
u32 sched_ctx[MLX5_ST_SZ_DW(scheduling_context)] = {0};
if (!(MLX5_CAP_QOS(mdev, nic_element_type) & ELEMENT_TYPE_CAP_MASK_QUEUE_GROUP))
return -EOPNOTSUPP;
MLX5_SET(scheduling_context, sched_ctx, parent_element_id, parent_id);
MLX5_SET(scheduling_context, sched_ctx, element_type,
SCHEDULING_CONTEXT_ELEMENT_TYPE_QUEUE_GROUP);
@ -44,6 +47,10 @@ int mlx5_qos_create_inner_node(struct mlx5_core_dev *mdev, u32 parent_id,
u32 sched_ctx[MLX5_ST_SZ_DW(scheduling_context)] = {0};
void *attr;
if (!(MLX5_CAP_QOS(mdev, nic_element_type) & ELEMENT_TYPE_CAP_MASK_TSAR) ||
!(MLX5_CAP_QOS(mdev, nic_tsar_type) & TSAR_TYPE_CAP_MASK_DWRR))
return -EOPNOTSUPP;
MLX5_SET(scheduling_context, sched_ctx, parent_element_id, parent_id);
MLX5_SET(scheduling_context, sched_ctx, element_type,
SCHEDULING_CONTEXT_ELEMENT_TYPE_TSAR);