diff options
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/esw/qos.c | 80 |
1 files changed, 24 insertions, 56 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/esw/qos.c b/drivers/net/ethernet/mellanox/mlx5/core/esw/qos.c index 82805bb20c76..c1e7b2425ebe 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/esw/qos.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/esw/qos.c @@ -143,10 +143,21 @@ static int esw_qos_sched_elem_config(struct mlx5_esw_sched_node *node, u32 max_r if (!MLX5_CAP_GEN(dev, qos) || !MLX5_CAP_QOS(dev, esw_scheduling)) return -EOPNOTSUPP; - MLX5_SET(scheduling_context, sched_ctx, max_average_bw, max_rate); - MLX5_SET(scheduling_context, sched_ctx, bw_share, bw_share); - bitmask |= MODIFY_SCHEDULING_ELEMENT_IN_MODIFY_BITMASK_MAX_AVERAGE_BW; - bitmask |= MODIFY_SCHEDULING_ELEMENT_IN_MODIFY_BITMASK_BW_SHARE; + if (bw_share && (!MLX5_CAP_QOS(dev, esw_bw_share) || + MLX5_CAP_QOS(dev, max_tsar_bw_share) < MLX5_MIN_BW_SHARE)) + return -EOPNOTSUPP; + + if (node->max_rate == max_rate && node->bw_share == bw_share) + return 0; + + if (node->max_rate != max_rate) { + MLX5_SET(scheduling_context, sched_ctx, max_average_bw, max_rate); + bitmask |= MODIFY_SCHEDULING_ELEMENT_IN_MODIFY_BITMASK_MAX_AVERAGE_BW; + } + if (node->bw_share != bw_share) { + MLX5_SET(scheduling_context, sched_ctx, bw_share, bw_share); + bitmask |= MODIFY_SCHEDULING_ELEMENT_IN_MODIFY_BITMASK_BW_SHARE; + } err = mlx5_modify_scheduling_element_cmd(dev, SCHEDULING_HIERARCHY_E_SWITCH, @@ -160,6 +171,8 @@ static int esw_qos_sched_elem_config(struct mlx5_esw_sched_node *node, u32 max_r return err; } + node->max_rate = max_rate; + node->bw_share = bw_share; if (node->type == SCHED_NODE_TYPE_VPORTS_TSAR) trace_mlx5_esw_node_qos_config(dev, node, node->ix, bw_share, max_rate); else if (node->type == SCHED_NODE_TYPE_VPORT) @@ -217,11 +230,7 @@ static void esw_qos_update_sched_node_bw_share(struct mlx5_esw_sched_node *node, bw_share = esw_qos_calc_bw_share(node->min_rate, divider, fw_max_bw_share); - if (bw_share == node->bw_share) - return; - esw_qos_sched_elem_config(node, node->max_rate, bw_share, extack); - node->bw_share = bw_share; } static void esw_qos_normalize_min_rate(struct mlx5_eswitch *esw, @@ -250,10 +259,6 @@ static int esw_qos_set_node_min_rate(struct mlx5_esw_sched_node *node, { struct mlx5_eswitch *esw = node->esw; - if (min_rate && (!MLX5_CAP_QOS(esw->dev, esw_bw_share) || - MLX5_CAP_QOS(esw->dev, max_tsar_bw_share) < MLX5_MIN_BW_SHARE)) - return -EOPNOTSUPP; - if (min_rate == node->min_rate) return 0; @@ -263,41 +268,6 @@ static int esw_qos_set_node_min_rate(struct mlx5_esw_sched_node *node, return 0; } -static int esw_qos_set_node_max_rate(struct mlx5_esw_sched_node *node, - u32 max_rate, struct netlink_ext_ack *extack) -{ - struct mlx5_esw_sched_node *vport_node; - int err; - - if (node->max_rate == max_rate) - return 0; - - /* Use parent node limit if new max rate is 0. */ - if (!max_rate && node->parent) - max_rate = node->parent->max_rate; - - err = esw_qos_sched_elem_config(node, max_rate, node->bw_share, extack); - if (err) - return err; - - node->max_rate = max_rate; - if (node->type != SCHED_NODE_TYPE_VPORTS_TSAR) - return 0; - - /* Any unlimited vports in the node should be set with the value of the node. */ - list_for_each_entry(vport_node, &node->children, entry) { - if (vport_node->max_rate) - continue; - - err = esw_qos_sched_elem_config(vport_node, max_rate, vport_node->bw_share, extack); - if (err) - NL_SET_ERR_MSG_MOD(extack, - "E-Switch vport implicit rate limit setting failed"); - } - - return err; -} - static int esw_qos_create_node_sched_elem(struct mlx5_core_dev *dev, u32 parent_element_id, u32 *tsar_ix) { @@ -367,7 +337,6 @@ static int esw_qos_update_node_scheduling_element(struct mlx5_vport *vport, struct netlink_ext_ack *extack) { struct mlx5_esw_sched_node *vport_node = vport->qos.sched_node; - u32 max_rate; int err; err = mlx5_destroy_scheduling_element_cmd(curr_node->esw->dev, @@ -378,9 +347,7 @@ static int esw_qos_update_node_scheduling_element(struct mlx5_vport *vport, return err; } - /* Use new node max rate if vport max rate is unlimited. */ - max_rate = vport_node->max_rate ? vport_node->max_rate : new_node->max_rate; - err = esw_qos_vport_create_sched_element(vport, new_node, max_rate, + err = esw_qos_vport_create_sched_element(vport, new_node, vport_node->max_rate, vport_node->bw_share, &vport_node->ix); if (err) { @@ -393,8 +360,7 @@ static int esw_qos_update_node_scheduling_element(struct mlx5_vport *vport, return 0; err_sched: - max_rate = vport_node->max_rate ? vport_node->max_rate : curr_node->max_rate; - if (esw_qos_vport_create_sched_element(vport, curr_node, max_rate, + if (esw_qos_vport_create_sched_element(vport, curr_node, vport_node->max_rate, vport_node->bw_share, &vport_node->ix)) esw_warn(curr_node->esw->dev, "E-Switch vport node restore failed (vport=%d)\n", @@ -707,7 +673,8 @@ int mlx5_esw_qos_set_vport_rate(struct mlx5_vport *vport, u32 max_rate, u32 min_ err = esw_qos_set_node_min_rate(vport->qos.sched_node, min_rate, NULL); if (!err) - err = esw_qos_set_node_max_rate(vport->qos.sched_node, max_rate, NULL); + err = esw_qos_sched_elem_config(vport->qos.sched_node, max_rate, + vport->qos.sched_node->bw_share, NULL); unlock: esw_qos_unlock(esw); return err; @@ -930,7 +897,8 @@ int mlx5_esw_devlink_rate_leaf_tx_max_set(struct devlink_rate *rate_leaf, void * if (err) goto unlock; - err = esw_qos_set_node_max_rate(vport->qos.sched_node, tx_max, extack); + err = esw_qos_sched_elem_config(vport->qos.sched_node, tx_max, + vport->qos.sched_node->bw_share, extack); unlock: esw_qos_unlock(esw); return err; @@ -965,7 +933,7 @@ int mlx5_esw_devlink_rate_node_tx_max_set(struct devlink_rate *rate_node, void * return err; esw_qos_lock(esw); - err = esw_qos_set_node_max_rate(node, tx_max, extack); + err = esw_qos_sched_elem_config(node, tx_max, node->bw_share, extack); esw_qos_unlock(esw); return err; } |