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Message-ID: <20241013064540.170722-6-tariqt@nvidia.com>
Date: Sun, 13 Oct 2024 09:45:30 +0300
From: Tariq Toukan <tariqt@...dia.com>
To: "David S. Miller" <davem@...emloft.net>, Jakub Kicinski <kuba@...nel.org>,
Paolo Abeni <pabeni@...hat.com>, Eric Dumazet <edumazet@...gle.com>
CC: <netdev@...r.kernel.org>, Saeed Mahameed <saeedm@...dia.com>, Gal Pressman
<gal@...dia.com>, Leon Romanovsky <leonro@...dia.com>, <cjubran@...dia.com>,
<cratiu@...dia.com>, Tariq Toukan <tariqt@...dia.com>
Subject: [PATCH net-next 05/15] net/mlx5: Rename vport QoS group reference to parent
From: Carolina Jubran <cjubran@...dia.com>
Rename the `group` field in the `mlx5_vport` structure to `parent` to
clarify the vport's role as a member of a parent group and distinguish
it from the concept of a general group.
Additionally, rename `group_entry` to `parent_entry` to reflect this
update.
This distinction will be important for handling more complex group
structures and scheduling elements.
Signed-off-by: Carolina Jubran <cjubran@...dia.com>
Signed-off-by: Tariq Toukan <tariqt@...dia.com>
---
.../mlx5/core/esw/diag/qos_tracepoint.h | 8 ++--
.../net/ethernet/mellanox/mlx5/core/esw/qos.c | 42 +++++++++----------
.../net/ethernet/mellanox/mlx5/core/eswitch.h | 6 ++-
3 files changed, 29 insertions(+), 27 deletions(-)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/esw/diag/qos_tracepoint.h b/drivers/net/ethernet/mellanox/mlx5/core/esw/diag/qos_tracepoint.h
index 645bad0d625f..2aea01959073 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/esw/diag/qos_tracepoint.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/esw/diag/qos_tracepoint.h
@@ -35,18 +35,18 @@ DECLARE_EVENT_CLASS(mlx5_esw_vport_qos_template,
__field(unsigned int, sched_elem_ix)
__field(unsigned int, bw_share)
__field(unsigned int, max_rate)
- __field(void *, group)
+ __field(void *, parent)
),
TP_fast_assign(__assign_str(devname);
__entry->vport_id = vport->vport;
__entry->sched_elem_ix = vport->qos.esw_sched_elem_ix;
__entry->bw_share = bw_share;
__entry->max_rate = max_rate;
- __entry->group = vport->qos.group;
+ __entry->parent = vport->qos.parent;
),
- TP_printk("(%s) vport=%hu sched_elem_ix=%u bw_share=%u, max_rate=%u group=%p\n",
+ TP_printk("(%s) vport=%hu sched_elem_ix=%u bw_share=%u, max_rate=%u parent=%p\n",
__get_str(devname), __entry->vport_id, __entry->sched_elem_ix,
- __entry->bw_share, __entry->max_rate, __entry->group
+ __entry->bw_share, __entry->max_rate, __entry->parent
)
);
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/esw/qos.c b/drivers/net/ethernet/mellanox/mlx5/core/esw/qos.c
index 65fd346d0e91..67b87f1598a5 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/esw/qos.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/esw/qos.c
@@ -84,11 +84,11 @@ struct mlx5_esw_rate_group {
struct list_head members;
};
-static void esw_qos_vport_set_group(struct mlx5_vport *vport, struct mlx5_esw_rate_group *group)
+static void esw_qos_vport_set_parent(struct mlx5_vport *vport, struct mlx5_esw_rate_group *parent)
{
- list_del_init(&vport->qos.group_entry);
- vport->qos.group = group;
- list_add_tail(&vport->qos.group_entry, &group->members);
+ list_del_init(&vport->qos.parent_entry);
+ vport->qos.parent = parent;
+ list_add_tail(&vport->qos.parent_entry, &parent->members);
}
static int esw_qos_sched_elem_config(struct mlx5_core_dev *dev, u32 sched_elem_ix,
@@ -131,7 +131,7 @@ static int esw_qos_vport_config(struct mlx5_vport *vport,
u32 max_rate, u32 bw_share,
struct netlink_ext_ack *extack)
{
- struct mlx5_core_dev *dev = vport->qos.group->esw->dev;
+ struct mlx5_core_dev *dev = vport->qos.parent->esw->dev;
int err;
err = esw_qos_sched_elem_config(dev, vport->qos.esw_sched_elem_ix, max_rate, bw_share);
@@ -157,7 +157,7 @@ static u32 esw_qos_calculate_group_min_rate_divider(struct mlx5_esw_rate_group *
/* Find max min_rate across all vports in this group.
* This will correspond to fw_max_bw_share in the final bw_share calculation.
*/
- list_for_each_entry(vport, &group->members, qos.group_entry) {
+ list_for_each_entry(vport, &group->members, qos.parent_entry) {
if (vport->qos.min_rate > max_guarantee)
max_guarantee = vport->qos.min_rate;
}
@@ -217,7 +217,7 @@ static int esw_qos_normalize_group_min_rate(struct mlx5_esw_rate_group *group,
u32 bw_share;
int err;
- list_for_each_entry(vport, &group->members, qos.group_entry) {
+ list_for_each_entry(vport, &group->members, qos.parent_entry) {
bw_share = esw_qos_calc_bw_share(vport->qos.min_rate, divider, fw_max_bw_share);
if (bw_share == vport->qos.bw_share)
@@ -286,7 +286,7 @@ static int esw_qos_set_vport_min_rate(struct mlx5_vport *vport,
previous_min_rate = vport->qos.min_rate;
vport->qos.min_rate = min_rate;
- err = esw_qos_normalize_group_min_rate(vport->qos.group, extack);
+ err = esw_qos_normalize_group_min_rate(vport->qos.parent, extack);
if (err)
vport->qos.min_rate = previous_min_rate;
@@ -311,7 +311,7 @@ static int esw_qos_set_vport_max_rate(struct mlx5_vport *vport,
/* Use parent group limit if new max rate is 0. */
if (!max_rate)
- act_max_rate = vport->qos.group->max_rate;
+ act_max_rate = vport->qos.parent->max_rate;
err = esw_qos_vport_config(vport, act_max_rate, vport->qos.bw_share, extack);
@@ -366,7 +366,7 @@ static int esw_qos_set_group_max_rate(struct mlx5_esw_rate_group *group,
group->max_rate = max_rate;
/* Any unlimited vports in the group should be set with the value of the group. */
- list_for_each_entry(vport, &group->members, qos.group_entry) {
+ list_for_each_entry(vport, &group->members, qos.parent_entry) {
if (vport->qos.max_rate)
continue;
@@ -409,9 +409,9 @@ static int esw_qos_create_group_sched_elem(struct mlx5_core_dev *dev, u32 parent
static int esw_qos_vport_create_sched_element(struct mlx5_vport *vport,
u32 max_rate, u32 bw_share)
{
+ struct mlx5_esw_rate_group *parent = vport->qos.parent;
u32 sched_ctx[MLX5_ST_SZ_DW(scheduling_context)] = {};
- struct mlx5_esw_rate_group *group = vport->qos.group;
- struct mlx5_core_dev *dev = group->esw->dev;
+ struct mlx5_core_dev *dev = parent->esw->dev;
void *attr;
int err;
@@ -424,7 +424,7 @@ static int esw_qos_vport_create_sched_element(struct mlx5_vport *vport,
SCHEDULING_CONTEXT_ELEMENT_TYPE_VPORT);
attr = MLX5_ADDR_OF(scheduling_context, sched_ctx, element_attributes);
MLX5_SET(vport_element, attr, vport_number, vport->vport);
- MLX5_SET(scheduling_context, sched_ctx, parent_element_id, group->tsar_ix);
+ MLX5_SET(scheduling_context, sched_ctx, parent_element_id, parent->tsar_ix);
MLX5_SET(scheduling_context, sched_ctx, max_average_bw, max_rate);
MLX5_SET(scheduling_context, sched_ctx, bw_share, bw_share);
@@ -458,7 +458,7 @@ static int esw_qos_update_group_scheduling_element(struct mlx5_vport *vport,
return err;
}
- esw_qos_vport_set_group(vport, new_group);
+ esw_qos_vport_set_parent(vport, new_group);
/* Use new group max rate if vport max rate is unlimited. */
max_rate = vport->qos.max_rate ? vport->qos.max_rate : new_group->max_rate;
err = esw_qos_vport_create_sched_element(vport, max_rate, vport->qos.bw_share);
@@ -470,7 +470,7 @@ static int esw_qos_update_group_scheduling_element(struct mlx5_vport *vport,
return 0;
err_sched:
- esw_qos_vport_set_group(vport, curr_group);
+ esw_qos_vport_set_parent(vport, curr_group);
max_rate = vport->qos.max_rate ? vport->qos.max_rate : curr_group->max_rate;
if (esw_qos_vport_create_sched_element(vport, max_rate, vport->qos.bw_share))
esw_warn(curr_group->esw->dev, "E-Switch vport group restore failed (vport=%d)\n",
@@ -488,7 +488,7 @@ static int esw_qos_vport_update_group(struct mlx5_vport *vport,
int err;
esw_assert_qos_lock_held(esw);
- curr_group = vport->qos.group;
+ curr_group = vport->qos.parent;
new_group = group ?: esw->qos.group0;
if (curr_group == new_group)
return 0;
@@ -714,8 +714,8 @@ static int esw_qos_vport_enable(struct mlx5_vport *vport,
if (err)
return err;
- INIT_LIST_HEAD(&vport->qos.group_entry);
- esw_qos_vport_set_group(vport, esw->qos.group0);
+ INIT_LIST_HEAD(&vport->qos.parent_entry);
+ esw_qos_vport_set_parent(vport, esw->qos.group0);
err = esw_qos_vport_create_sched_element(vport, max_rate, bw_share);
if (err)
@@ -742,10 +742,10 @@ void mlx5_esw_qos_vport_disable(struct mlx5_vport *vport)
esw_qos_lock(esw);
if (!vport->qos.enabled)
goto unlock;
- WARN(vport->qos.group != esw->qos.group0,
+ WARN(vport->qos.parent != esw->qos.group0,
"Disabling QoS on port before detaching it from group");
- dev = vport->qos.group->esw->dev;
+ dev = vport->qos.parent->esw->dev;
err = mlx5_destroy_scheduling_element_cmd(dev,
SCHEDULING_HIERARCHY_E_SWITCH,
vport->qos.esw_sched_elem_ix);
@@ -887,7 +887,7 @@ int mlx5_esw_qos_modify_vport_rate(struct mlx5_eswitch *esw, u16 vport_num, u32
/* Eswitch QoS wasn't enabled yet. Enable it and vport QoS. */
err = esw_qos_vport_enable(vport, rate_mbps, vport->qos.bw_share, NULL);
} else {
- struct mlx5_core_dev *dev = vport->qos.group->esw->dev;
+ struct mlx5_core_dev *dev = vport->qos.parent->esw->dev;
MLX5_SET(scheduling_context, ctx, max_average_bw, rate_mbps);
bitmask = MODIFY_SCHEDULING_ELEMENT_IN_MODIFY_BITMASK_MAX_AVERAGE_BW;
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h
index 3b901bd36d4b..e789fb14989b 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h
@@ -221,8 +221,10 @@ struct mlx5_vport {
u32 max_rate;
/* A computed value indicating relative min_rate between vports in a group. */
u32 bw_share;
- struct mlx5_esw_rate_group *group;
- struct list_head group_entry;
+ /* The parent group of this vport scheduling element. */
+ struct mlx5_esw_rate_group *parent;
+ /* Membership in the parent 'members' list. */
+ struct list_head parent_entry;
} qos;
u16 vport;
--
2.44.0
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