This is a note to let you know that I've just added the patch titled
net/mlx5: Explicitly set scheduling element and TSAR type
to the 5.15-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
net-mlx5-explicitly-set-scheduling-element-and-tsar-.patch
and it can be found in the queue-5.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 0a441e073a1a7b6b97a4d5c3a2b1ea5d04a7ccc0
Author: Carolina Jubran <cjubran@xxxxxxxxxx>
Date: Mon Sep 2 11:46:14 2024 +0300
net/mlx5: Explicitly set scheduling element and TSAR type
[ Upstream commit c88146abe4d0f8cf659b2b8883fdc33936d2e3b8 ]
Ensure the scheduling element type and TSAR type are explicitly
initialized in the QoS rate group creation.
This prevents potential issues due to default values.
Fixes: 1ae258f8b343 ("net/mlx5: E-switch, Introduce rate limiting groups API")
Signed-off-by: Carolina Jubran <cjubran@xxxxxxxxxx>
Reviewed-by: Cosmin Ratiu <cratiu@xxxxxxxxxx>
Signed-off-by: Saeed Mahameed <saeedm@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/esw/qos.c b/drivers/net/ethernet/mellanox/mlx5/core/esw/qos.c
index 65c8f1f08472..b7758a1c015e 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/esw/qos.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/esw/qos.c
@@ -424,6 +424,7 @@ esw_qos_create_rate_group(struct mlx5_eswitch *esw, struct netlink_ext_ack *exta
{
u32 tsar_ctx[MLX5_ST_SZ_DW(scheduling_context)] = {};
struct mlx5_esw_rate_group *group;
+ __be32 *attr;
u32 divider;
int err;
@@ -434,6 +435,12 @@ esw_qos_create_rate_group(struct mlx5_eswitch *esw, struct netlink_ext_ack *exta
if (!group)
return ERR_PTR(-ENOMEM);
+ MLX5_SET(scheduling_context, tsar_ctx, element_type,
+ SCHEDULING_CONTEXT_ELEMENT_TYPE_TSAR);
+
+ attr = MLX5_ADDR_OF(scheduling_context, tsar_ctx, element_attributes);
+ *attr = cpu_to_be32(TSAR_ELEMENT_TSAR_TYPE_DWRR << 16);
+
MLX5_SET(scheduling_context, tsar_ctx, parent_element_id,
esw->qos.root_tsar_ix);
err = mlx5_create_scheduling_element_cmd(esw->dev,
