diff mbox series

[net-next,09/15] net/mlx5: Remove vport QoS enabled flag

Message ID 20241013064540.170722-10-tariqt@nvidia.com (mailing list archive)
State Superseded
Delegated to: Netdev Maintainers
Headers show
Series net/mlx5: Refactor esw QoS to support generalized operations | expand

Checks

Context Check Description
netdev/series_format success Posting correctly formatted
netdev/tree_selection success Clearly marked for net-next
netdev/ynl success Generated files up to date; no warnings/errors; no diff in generated;
netdev/fixes_present success Fixes tag not required for -next series
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 5 this patch: 5
netdev/build_tools success No tools touched, skip
netdev/cc_maintainers warning 1 maintainers not CCed: linux-rdma@vger.kernel.org
netdev/build_clang success Errors and warnings before: 3 this patch: 3
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/deprecated_api success None detected
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success No Fixes tag
netdev/build_allmodconfig_warn success Errors and warnings before: 5 this patch: 5
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 58 lines checked
netdev/build_clang_rust success No Rust files in patch. Skipping build
netdev/kdoc success Errors and warnings before: 1 this patch: 1
netdev/source_inline success Was 0 now: 0

Commit Message

Tariq Toukan Oct. 13, 2024, 6:45 a.m. UTC 
From: Carolina Jubran <cjubran@nvidia.com>

Remove the `enabled` flag from the `vport->qos` struct, as QoS now
relies solely on the `sched_node` pointer to determine whether QoS
features are in use.

Currently, the vport `qos` struct consists only of the `sched_node`,
introducing an unnecessary two-level reference. However, the qos struct
is retained as it will be extended in future patches to support new QoS
features.

Signed-off-by: Carolina Jubran <cjubran@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/esw/qos.c | 13 ++++++-------
 drivers/net/ethernet/mellanox/mlx5/core/eswitch.h |  2 --
 2 files changed, 6 insertions(+), 9 deletions(-)
diff mbox series

Patch

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/esw/qos.c b/drivers/net/ethernet/mellanox/mlx5/core/esw/qos.c
index 571f7c797968..0f465de4a916 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/esw/qos.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/esw/qos.c
@@ -742,7 +742,7 @@  static int esw_qos_vport_enable(struct mlx5_vport *vport,
 	int err;
 
 	esw_assert_qos_lock_held(esw);
-	if (vport->qos.enabled)
+	if (vport->qos.sched_node)
 		return 0;
 
 	err = esw_qos_get(esw, extack);
@@ -759,7 +759,6 @@  static int esw_qos_vport_enable(struct mlx5_vport *vport,
 	if (!vport->qos.sched_node)
 		goto err_alloc;
 
-	vport->qos.enabled = true;
 	vport->qos.sched_node->vport = vport;
 
 	trace_mlx5_esw_vport_qos_create(vport->dev, vport, bw_share, max_rate);
@@ -785,9 +784,9 @@  void mlx5_esw_qos_vport_disable(struct mlx5_vport *vport)
 
 	lockdep_assert_held(&esw->state_lock);
 	esw_qos_lock(esw);
-	if (!vport->qos.enabled)
-		goto unlock;
 	vport_node = vport->qos.sched_node;
+	if (!vport_node)
+		goto unlock;
 	WARN(vport_node->parent != esw->qos.node0,
 	     "Disabling QoS on port before detaching it from node");
 
@@ -834,7 +833,7 @@  bool mlx5_esw_qos_get_vport_rate(struct mlx5_vport *vport, u32 *max_rate, u32 *m
 	bool enabled;
 
 	esw_qos_lock(esw);
-	enabled = vport->qos.enabled;
+	enabled = !!vport->qos.sched_node;
 	if (enabled) {
 		*max_rate = vport->qos.sched_node->max_rate;
 		*min_rate = vport->qos.sched_node->min_rate;
@@ -931,7 +930,7 @@  int mlx5_esw_qos_modify_vport_rate(struct mlx5_eswitch *esw, u16 vport_num, u32
 	}
 
 	esw_qos_lock(esw);
-	if (!vport->qos.enabled) {
+	if (!vport->qos.sched_node) {
 		/* Eswitch QoS wasn't enabled yet. Enable it and vport QoS. */
 		err = esw_qos_vport_enable(vport, rate_mbps, vport->qos.sched_node->bw_share, NULL);
 	} else {
@@ -1140,7 +1139,7 @@  int mlx5_esw_qos_vport_update_node(struct mlx5_vport *vport,
 	}
 
 	esw_qos_lock(esw);
-	if (!vport->qos.enabled && !node)
+	if (!vport->qos.sched_node && !node)
 		goto unlock;
 
 	err = esw_qos_vport_enable(vport, 0, 0, extack);
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h
index e77ec82787de..14dd42d44e6f 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h
@@ -214,8 +214,6 @@  struct mlx5_vport {
 
 	/* Protected with the E-Switch qos domain lock. */
 	struct {
-		/* Initially false, set to true whenever any QoS features are used. */
-		bool enabled;
 		/* Vport scheduling element node. */
 		struct mlx5_esw_sched_node *sched_node;
 	} qos;