>
> When using only 3 scheduler levels, the VSI node needs to be a node
> further down the scheduler hierarchy, rather than one up it as with all
> other possible level settings (5-9). Take account of this possibility in
> the code.
>
> Fixes: 4ace7701eb44 ("net/ice: provide parameter to limit scheduler layers")
> Cc: sta...@dpdk.org
>
> Signed-off-by: Bruce Richardson <bruce.richard...@intel.com>
> ---
> drivers/net/intel/ice/ice_tm.c | 12 ++++++++++++
> 1 file changed, 12 insertions(+)
>
> diff --git a/drivers/net/intel/ice/ice_tm.c b/drivers/net/intel/ice/ice_tm.c
> index ff3a6cd77f..f2d8e12181 100644
> --- a/drivers/net/intel/ice/ice_tm.c
> +++ b/drivers/net/intel/ice/ice_tm.c
> @@ -818,6 +818,18 @@ commit_new_hierarchy(struct rte_eth_dev *dev)
> uint8_t qg_lvl = q_lvl - 1;
>
> struct ice_sched_node *new_vsi_root = hw->vsi_ctx[pf->main_vsi-
> >idx]->sched.vsi_node[0];
> + /* handle case where VSI node needs to move DOWN the hierarchy */
> + while (new_vsi_root->tx_sched_layer < new_root_level) {
> + if (new_vsi_root->num_children == 0)
> + return -1;
> + /* remove all child nodes but the first */
> + while (new_vsi_root->num_children > 1)
> + free_sched_node_recursive(pi, new_vsi_root,
> + new_vsi_root->children[1],
> + new_vsi_root->vsi_handle);
> + new_vsi_root = new_vsi_root->children[0];
> + }
> + /* handle case where VSI node needs to move UP the hierarchy */
> while (new_vsi_root->tx_sched_layer > new_root_level)
> new_vsi_root = new_vsi_root->parent;
Acked-by: Ciara Loftus <ciara.lof...@intel.com>
>
> --
> 2.45.2
