[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <65bfbea3-8007-43ec-af58-2d61f5488a88@redhat.com>
Date: Tue, 18 Mar 2025 10:36:32 +0100
From: Paolo Abeni <pabeni@...hat.com>
To: Tariq Toukan <tariqt@...dia.com>, "David S. Miller"
<davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>,
Jakub Kicinski <kuba@...nel.org>, Andrew Lunn <andrew+netdev@...n.ch>
Cc: Gal Pressman <gal@...dia.com>, Mark Bloch <mbloch@...dia.com>,
Moshe Shemesh <moshe@...dia.com>, Saeed Mahameed <saeedm@...dia.com>,
Leon Romanovsky <leon@...nel.org>, netdev@...r.kernel.org,
linux-rdma@...r.kernel.org, linux-kernel@...r.kernel.org,
Carolina Jubran <cjubran@...dia.com>, Cosmin Ratiu <cratiu@...dia.com>,
Dragos Tatulea <dtatulea@...dia.com>
Subject: Re: [PATCH net-next 4/4] net/mlx5: Add support for setting parent of
nodes
On 3/10/25 10:26 PM, Tariq Toukan wrote:
> @@ -1018,3 +1018,105 @@ int mlx5_esw_devlink_rate_leaf_parent_set(struct devlink_rate *devlink_rate,
> node = parent_priv;
> return mlx5_esw_qos_vport_update_parent(vport, node, extack);
> }
> +
> +static int
> +mlx5_esw_qos_node_validate_set_parent(struct mlx5_esw_sched_node *node,
> + struct mlx5_esw_sched_node *parent,
> + struct netlink_ext_ack *extack)
> +{
> + u8 new_level, max_level;
> +
> + if (parent && parent->esw != node->esw) {
> + NL_SET_ERR_MSG_MOD(extack,
> + "Cannot assign node to another E-Switch");
> + return -EOPNOTSUPP;
> + }
> +
> + if (!list_empty(&node->children)) {
> + NL_SET_ERR_MSG_MOD(extack,
> + "Cannot reassign a node that contains rate objects");
> + return -EOPNOTSUPP;
> + }
> +
> + new_level = parent ? parent->level + 1 : 2;
> + max_level = 1 << MLX5_CAP_QOS(node->esw->dev, log_esw_max_sched_depth);
> + if (new_level > max_level) {
> + NL_SET_ERR_MSG_MOD(extack,
> + "Node hierarchy depth exceeds the maximum supported level");
Minor nit for a possible small follow-up: it could be possibly useful to
add to the extact the current and max level.
/P
Powered by blists - more mailing lists