[PATCH net-next 3/4] net/mlx5: Preserve rate settings when creating a rate node
flat view
STALE582d
LANDED: 1 (1M)
From: Tariq Toukan <tariqt@nvidia.com>
Date: 2025-03-10 21:28:31
Also in:
linux-rdma, lkml
Subsystem:
mellanox mlx5 core vpi driver, networking drivers, the rest · Maintainers:
Saeed Mahameed, Leon Romanovsky, Tariq Toukan, Mark Bloch, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
1 review trailer; landed in mainline as f88c349c75e3 on 2025-03-18.
From: Carolina Jubran <redacted> Modify `esw_qos_create_node_sched_elem()` to receive max_rate and bw_share values while maintaining the previous configuration. This change is essential for the upcoming patch that will modify rate nodes and requires the existing settings to be preserved unless explicitly changed. Signed-off-by: Carolina Jubran <redacted> Reviewed-by: Dragos Tatulea <dtatulea@nvidia.com> Signed-off-by: Tariq Toukan <tariqt@nvidia.com> --- drivers/net/ethernet/mellanox/mlx5/core/esw/qos.c | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 deletions(-)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/esw/qos.c b/drivers/net/ethernet/mellanox/mlx5/core/esw/qos.c
index 959e4446327d..3c850efb4ca3 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/esw/qos.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/esw/qos.c@@ -320,8 +320,9 @@ static int esw_qos_set_node_min_rate(struct mlx5_esw_sched_node *node, return 0; } -static int esw_qos_create_node_sched_elem(struct mlx5_core_dev *dev, u32 parent_element_id, - u32 *tsar_ix) +static int +esw_qos_create_node_sched_elem(struct mlx5_core_dev *dev, u32 parent_element_id, + u32 max_rate, u32 bw_share, u32 *tsar_ix) { u32 tsar_ctx[MLX5_ST_SZ_DW(scheduling_context)] = {}; void *attr;
@@ -338,6 +339,8 @@ static int esw_qos_create_node_sched_elem(struct mlx5_core_dev *dev, u32 parent_ SCHEDULING_CONTEXT_ELEMENT_TYPE_TSAR); MLX5_SET(scheduling_context, tsar_ctx, parent_element_id, parent_element_id); + MLX5_SET(scheduling_context, tsar_ctx, max_average_bw, max_rate); + MLX5_SET(scheduling_context, tsar_ctx, bw_share, bw_share); attr = MLX5_ADDR_OF(scheduling_context, tsar_ctx, element_attributes); MLX5_SET(tsar_element, attr, tsar_type, TSAR_ELEMENT_TSAR_TYPE_DWRR);
@@ -409,7 +412,8 @@ __esw_qos_create_vports_sched_node(struct mlx5_eswitch *esw, struct mlx5_esw_sch u32 tsar_ix; int err; - err = esw_qos_create_node_sched_elem(esw->dev, esw->qos.root_tsar_ix, &tsar_ix); + err = esw_qos_create_node_sched_elem(esw->dev, esw->qos.root_tsar_ix, 0, + 0, &tsar_ix); if (err) { NL_SET_ERR_MSG_MOD(extack, "E-Switch create TSAR for node failed"); return ERR_PTR(err);
@@ -476,7 +480,8 @@ 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; - err = esw_qos_create_node_sched_elem(esw->dev, 0, &esw->qos.root_tsar_ix); + err = esw_qos_create_node_sched_elem(esw->dev, 0, 0, 0, + &esw->qos.root_tsar_ix); if (err) { esw_warn(dev, "E-Switch create root TSAR failed (%d)\n", err); return err;
--
2.31.1