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Message-Id: <20221203221337.29267-11-saeed@kernel.org>
Date: Sat, 3 Dec 2022 14:13:32 -0800
From: Saeed Mahameed <saeed@...nel.org>
To: "David S. Miller" <davem@...emloft.net>,
Jakub Kicinski <kuba@...nel.org>,
Paolo Abeni <pabeni@...hat.com>,
Eric Dumazet <edumazet@...gle.com>
Cc: Saeed Mahameed <saeedm@...dia.com>, netdev@...r.kernel.org,
Tariq Toukan <tariqt@...dia.com>, Oz Shlomo <ozsh@...dia.com>,
Roi Dayan <roid@...dia.com>
Subject: [net-next 10/15] net/mlx5e: TC, init post meter rules with branching attributes
From: Oz Shlomo <ozsh@...dia.com>
Instantiate the post meter actions with the platform initialized branching
action attributes.
Signed-off-by: Oz Shlomo <ozsh@...dia.com>
Reviewed-by: Roi Dayan <roid@...dia.com>
Signed-off-by: Saeed Mahameed <saeedm@...dia.com>
---
.../mellanox/mlx5/core/en/tc/post_meter.c | 84 +++++++++++++------
.../mellanox/mlx5/core/en/tc/post_meter.h | 6 +-
.../net/ethernet/mellanox/mlx5/core/en_tc.c | 11 +--
3 files changed, 67 insertions(+), 34 deletions(-)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/tc/post_meter.c b/drivers/net/ethernet/mellanox/mlx5/core/en/tc/post_meter.c
index 60209205f683..c38211097746 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/tc/post_meter.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/tc/post_meter.c
@@ -12,7 +12,9 @@ struct mlx5e_post_meter_priv {
struct mlx5_flow_table *ft;
struct mlx5_flow_group *fg;
struct mlx5_flow_handle *green_rule;
+ struct mlx5_flow_attr *green_attr;
struct mlx5_flow_handle *red_rule;
+ struct mlx5_flow_attr *red_attr;
};
struct mlx5_flow_table *
@@ -81,15 +83,48 @@ mlx5e_post_meter_fg_create(struct mlx5e_priv *priv,
return err;
}
+static struct mlx5_flow_handle *
+mlx5e_post_meter_add_rule(struct mlx5e_priv *priv,
+ struct mlx5e_post_meter_priv *post_meter,
+ struct mlx5_flow_spec *spec,
+ struct mlx5_flow_attr *attr,
+ struct mlx5_fc *act_counter,
+ struct mlx5_fc *drop_counter)
+{
+ struct mlx5_eswitch *esw = priv->mdev->priv.eswitch;
+ struct mlx5_flow_handle *ret;
+
+ attr->action |= MLX5_FLOW_CONTEXT_ACTION_COUNT;
+ if (attr->action & MLX5_FLOW_CONTEXT_ACTION_DROP)
+ attr->counter = drop_counter;
+ else
+ attr->counter = act_counter;
+
+ attr->ft = post_meter->ft;
+ attr->flags |= MLX5_ATTR_FLAG_NO_IN_PORT;
+ attr->outer_match_level = MLX5_MATCH_NONE;
+ attr->chain = 0;
+ attr->prio = 0;
+
+ ret = mlx5_eswitch_add_offloaded_rule(esw, spec, attr);
+
+ /* We did not create the counter, so we can't delete it.
+ * Avoid freeing the counter when the attr is deleted in free_branching_attr
+ */
+ attr->action &= ~MLX5_FLOW_CONTEXT_ACTION_COUNT;
+
+ return ret;
+}
+
static int
mlx5e_post_meter_rules_create(struct mlx5e_priv *priv,
struct mlx5e_post_meter_priv *post_meter,
struct mlx5e_post_act *post_act,
struct mlx5_fc *act_counter,
- struct mlx5_fc *drop_counter)
+ struct mlx5_fc *drop_counter,
+ struct mlx5_flow_attr *green_attr,
+ struct mlx5_flow_attr *red_attr)
{
- struct mlx5_flow_destination dest[2] = {};
- struct mlx5_flow_act flow_act = {};
struct mlx5_flow_handle *rule;
struct mlx5_flow_spec *spec;
int err;
@@ -100,36 +135,28 @@ mlx5e_post_meter_rules_create(struct mlx5e_priv *priv,
mlx5e_tc_match_to_reg_match(spec, PACKET_COLOR_TO_REG,
MLX5_FLOW_METER_COLOR_RED, MLX5_PACKET_COLOR_MASK);
- flow_act.action = MLX5_FLOW_CONTEXT_ACTION_DROP |
- MLX5_FLOW_CONTEXT_ACTION_COUNT;
- flow_act.flags |= FLOW_ACT_IGNORE_FLOW_LEVEL;
- dest[0].type = MLX5_FLOW_DESTINATION_TYPE_COUNTER;
- dest[0].counter_id = mlx5_fc_id(drop_counter);
- rule = mlx5_add_flow_rules(post_meter->ft, spec, &flow_act, dest, 1);
+ rule = mlx5e_post_meter_add_rule(priv, post_meter, spec, red_attr,
+ act_counter, drop_counter);
if (IS_ERR(rule)) {
- mlx5_core_warn(priv->mdev, "Failed to create post_meter flow drop rule\n");
+ mlx5_core_warn(priv->mdev, "Failed to create post_meter exceed rule\n");
err = PTR_ERR(rule);
goto err_red;
}
post_meter->red_rule = rule;
+ post_meter->red_attr = red_attr;
mlx5e_tc_match_to_reg_match(spec, PACKET_COLOR_TO_REG,
MLX5_FLOW_METER_COLOR_GREEN, MLX5_PACKET_COLOR_MASK);
- flow_act.action = MLX5_FLOW_CONTEXT_ACTION_FWD_DEST |
- MLX5_FLOW_CONTEXT_ACTION_COUNT;
- dest[0].type = MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE;
- dest[0].ft = mlx5e_tc_post_act_get_ft(post_act);
- dest[1].type = MLX5_FLOW_DESTINATION_TYPE_COUNTER;
- dest[1].counter_id = mlx5_fc_id(act_counter);
-
- rule = mlx5_add_flow_rules(post_meter->ft, spec, &flow_act, dest, 2);
+ rule = mlx5e_post_meter_add_rule(priv, post_meter, spec, green_attr,
+ act_counter, drop_counter);
if (IS_ERR(rule)) {
- mlx5_core_warn(priv->mdev, "Failed to create post_meter flow fwd rule\n");
+ mlx5_core_warn(priv->mdev, "Failed to create post_meter notexceed rule\n");
err = PTR_ERR(rule);
goto err_green;
}
post_meter->green_rule = rule;
+ post_meter->green_attr = green_attr;
kvfree(spec);
return 0;
@@ -142,10 +169,11 @@ mlx5e_post_meter_rules_create(struct mlx5e_priv *priv,
}
static void
-mlx5e_post_meter_rules_destroy(struct mlx5e_post_meter_priv *post_meter)
+mlx5e_post_meter_rules_destroy(struct mlx5_eswitch *esw,
+ struct mlx5e_post_meter_priv *post_meter)
{
- mlx5_del_flow_rules(post_meter->red_rule);
- mlx5_del_flow_rules(post_meter->green_rule);
+ mlx5_eswitch_del_offloaded_rule(esw, post_meter->red_rule, post_meter->red_attr);
+ mlx5_eswitch_del_offloaded_rule(esw, post_meter->green_rule, post_meter->green_attr);
}
static void
@@ -165,7 +193,9 @@ mlx5e_post_meter_init(struct mlx5e_priv *priv,
enum mlx5_flow_namespace_type ns_type,
struct mlx5e_post_act *post_act,
struct mlx5_fc *act_counter,
- struct mlx5_fc *drop_counter)
+ struct mlx5_fc *drop_counter,
+ struct mlx5_flow_attr *branch_true,
+ struct mlx5_flow_attr *branch_false)
{
struct mlx5e_post_meter_priv *post_meter;
int err;
@@ -182,8 +212,8 @@ mlx5e_post_meter_init(struct mlx5e_priv *priv,
if (err)
goto err_fg;
- err = mlx5e_post_meter_rules_create(priv, post_meter, post_act,
- act_counter, drop_counter);
+ err = mlx5e_post_meter_rules_create(priv, post_meter, post_act, act_counter,
+ drop_counter, branch_true, branch_false);
if (err)
goto err_rules;
@@ -199,9 +229,9 @@ mlx5e_post_meter_init(struct mlx5e_priv *priv,
}
void
-mlx5e_post_meter_cleanup(struct mlx5e_post_meter_priv *post_meter)
+mlx5e_post_meter_cleanup(struct mlx5_eswitch *esw, struct mlx5e_post_meter_priv *post_meter)
{
- mlx5e_post_meter_rules_destroy(post_meter);
+ mlx5e_post_meter_rules_destroy(esw, post_meter);
mlx5e_post_meter_fg_destroy(post_meter);
mlx5e_post_meter_table_destroy(post_meter);
kfree(post_meter);
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/tc/post_meter.h b/drivers/net/ethernet/mellanox/mlx5/core/en/tc/post_meter.h
index 37c74e7bfb6a..a4075d33fde2 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/tc/post_meter.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/tc/post_meter.h
@@ -22,8 +22,10 @@ mlx5e_post_meter_init(struct mlx5e_priv *priv,
enum mlx5_flow_namespace_type ns_type,
struct mlx5e_post_act *post_act,
struct mlx5_fc *act_counter,
- struct mlx5_fc *drop_counter);
+ struct mlx5_fc *drop_counter,
+ struct mlx5_flow_attr *branch_true,
+ struct mlx5_flow_attr *branch_false);
void
-mlx5e_post_meter_cleanup(struct mlx5e_post_meter_priv *post_meter);
+mlx5e_post_meter_cleanup(struct mlx5_eswitch *esw, struct mlx5e_post_meter_priv *post_meter);
#endif /* __MLX5_EN_POST_METER_H__ */
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
index ce449fa4f36e..338e0b21d0b3 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
@@ -422,8 +422,9 @@ mlx5e_tc_add_flow_meter(struct mlx5e_priv *priv,
}
ns_type = mlx5e_tc_meter_get_namespace(meter->flow_meters);
- post_meter = mlx5e_post_meter_init(priv, ns_type, post_act, meter->act_counter,
- meter->drop_counter);
+ post_meter = mlx5e_post_meter_init(priv, ns_type, post_act,
+ meter->act_counter, meter->drop_counter,
+ attr->branch_true, attr->branch_false);
if (IS_ERR(post_meter)) {
mlx5_core_err(priv->mdev, "Failed to init post meter\n");
goto err_meter_init;
@@ -442,9 +443,9 @@ mlx5e_tc_add_flow_meter(struct mlx5e_priv *priv,
}
static void
-mlx5e_tc_del_flow_meter(struct mlx5_flow_attr *attr)
+mlx5e_tc_del_flow_meter(struct mlx5_eswitch *esw, struct mlx5_flow_attr *attr)
{
- mlx5e_post_meter_cleanup(attr->meter_attr.post_meter);
+ mlx5e_post_meter_cleanup(esw, attr->meter_attr.post_meter);
mlx5e_tc_meter_put(attr->meter_attr.meter);
}
@@ -505,7 +506,7 @@ mlx5e_tc_rule_unoffload(struct mlx5e_priv *priv,
mlx5_eswitch_del_offloaded_rule(esw, rule, attr);
if (attr->meter_attr.meter)
- mlx5e_tc_del_flow_meter(attr);
+ mlx5e_tc_del_flow_meter(esw, attr);
}
int
--
2.38.1
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