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Date: Sat, 3 Apr 2021 21:19:54 -0700
From: Saeed Mahameed <saeed@...nel.org>
To: "David S. Miller" <davem@...emloft.net>,
Jakub Kicinski <kuba@...nel.org>
Cc: netdev@...r.kernel.org, Tariq Toukan <tariqt@...dia.com>,
Vu Pham <vuhuong@...dia.com>,
Saeed Mahameed <saeedm@...dia.com>
Subject: [net-next 16/16] net/mlx5e: Dynamic alloc vlan table for netdev when needed
From: Vu Pham <vuhuong@...dia.com>
Dynamic allocate vlan table in mlx5e_priv for EN netdev
when needed. Don't allocate it for representor netdev.
Signed-off-by: Vu Pham <vuhuong@...dia.com>
Signed-off-by: Saeed Mahameed <saeedm@...dia.com>
---
.../net/ethernet/mellanox/mlx5/core/en/fs.h | 18 +--
.../net/ethernet/mellanox/mlx5/core/en_fs.c | 132 +++++++++++-------
.../net/ethernet/mellanox/mlx5/core/en_main.c | 3 +-
.../net/ethernet/mellanox/mlx5/core/en_tc.c | 4 +-
4 files changed, 90 insertions(+), 67 deletions(-)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/fs.h b/drivers/net/ethernet/mellanox/mlx5/core/en/fs.h
index cbfe31fb2b12..373bd89484cb 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/fs.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/fs.h
@@ -49,18 +49,10 @@ struct mlx5e_promisc_table {
struct mlx5_flow_handle *rule;
};
-struct mlx5e_vlan_table {
- struct mlx5e_flow_table ft;
- DECLARE_BITMAP(active_cvlans, VLAN_N_VID);
- DECLARE_BITMAP(active_svlans, VLAN_N_VID);
- struct mlx5_flow_handle *active_cvlans_rule[VLAN_N_VID];
- struct mlx5_flow_handle *active_svlans_rule[VLAN_N_VID];
- struct mlx5_flow_handle *untagged_rule;
- struct mlx5_flow_handle *any_cvlan_rule;
- struct mlx5_flow_handle *any_svlan_rule;
- struct mlx5_flow_handle *trap_rule;
- bool cvlan_filter_disabled;
-};
+/* Forward declaration and APIs to get private fields of vlan_table */
+struct mlx5e_vlan_table;
+unsigned long *mlx5e_vlan_get_active_svlans(struct mlx5e_vlan_table *vlan);
+struct mlx5_flow_table *mlx5e_vlan_get_flowtable(struct mlx5e_vlan_table *vlan);
struct mlx5e_l2_table {
struct mlx5e_flow_table ft;
@@ -231,7 +223,7 @@ struct mlx5e_flow_steering {
#endif
struct mlx5e_tc_table tc;
struct mlx5e_promisc_table promisc;
- struct mlx5e_vlan_table vlan;
+ struct mlx5e_vlan_table *vlan;
struct mlx5e_l2_table l2;
struct mlx5e_ttc_table ttc;
struct mlx5e_ttc_table inner_ttc;
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_fs.c b/drivers/net/ethernet/mellanox/mlx5/core/en_fs.c
index 98f0b857947e..0d571a0c76d9 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_fs.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_fs.c
@@ -108,6 +108,29 @@ static void mlx5e_del_l2_from_hash(struct mlx5e_l2_hash_node *hn)
kfree(hn);
}
+struct mlx5e_vlan_table {
+ struct mlx5e_flow_table ft;
+ DECLARE_BITMAP(active_cvlans, VLAN_N_VID);
+ DECLARE_BITMAP(active_svlans, VLAN_N_VID);
+ struct mlx5_flow_handle *active_cvlans_rule[VLAN_N_VID];
+ struct mlx5_flow_handle *active_svlans_rule[VLAN_N_VID];
+ struct mlx5_flow_handle *untagged_rule;
+ struct mlx5_flow_handle *any_cvlan_rule;
+ struct mlx5_flow_handle *any_svlan_rule;
+ struct mlx5_flow_handle *trap_rule;
+ bool cvlan_filter_disabled;
+};
+
+unsigned long *mlx5e_vlan_get_active_svlans(struct mlx5e_vlan_table *vlan)
+{
+ return vlan->active_svlans;
+}
+
+struct mlx5_flow_table *mlx5e_vlan_get_flowtable(struct mlx5e_vlan_table *vlan)
+{
+ return vlan->ft.t;
+}
+
static int mlx5e_vport_context_update_vlans(struct mlx5e_priv *priv)
{
struct net_device *ndev = priv->netdev;
@@ -119,7 +142,7 @@ static int mlx5e_vport_context_update_vlans(struct mlx5e_priv *priv)
int i;
list_size = 0;
- for_each_set_bit(vlan, priv->fs.vlan.active_cvlans, VLAN_N_VID)
+ for_each_set_bit(vlan, priv->fs.vlan->active_cvlans, VLAN_N_VID)
list_size++;
max_list_size = 1 << MLX5_CAP_GEN(priv->mdev, log_max_vlan_list);
@@ -136,7 +159,7 @@ static int mlx5e_vport_context_update_vlans(struct mlx5e_priv *priv)
return -ENOMEM;
i = 0;
- for_each_set_bit(vlan, priv->fs.vlan.active_cvlans, VLAN_N_VID) {
+ for_each_set_bit(vlan, priv->fs.vlan->active_cvlans, VLAN_N_VID) {
if (i >= list_size)
break;
vlans[i++] = vlan;
@@ -163,7 +186,7 @@ static int __mlx5e_add_vlan_rule(struct mlx5e_priv *priv,
enum mlx5e_vlan_rule_type rule_type,
u16 vid, struct mlx5_flow_spec *spec)
{
- struct mlx5_flow_table *ft = priv->fs.vlan.ft.t;
+ struct mlx5_flow_table *ft = priv->fs.vlan->ft.t;
struct mlx5_flow_destination dest = {};
struct mlx5_flow_handle **rule_p;
MLX5_DECLARE_FLOW_ACT(flow_act);
@@ -180,24 +203,24 @@ static int __mlx5e_add_vlan_rule(struct mlx5e_priv *priv,
* disabled in match value means both S & C tags
* don't exist (untagged of both)
*/
- rule_p = &priv->fs.vlan.untagged_rule;
+ rule_p = &priv->fs.vlan->untagged_rule;
MLX5_SET_TO_ONES(fte_match_param, spec->match_criteria,
outer_headers.cvlan_tag);
break;
case MLX5E_VLAN_RULE_TYPE_ANY_CTAG_VID:
- rule_p = &priv->fs.vlan.any_cvlan_rule;
+ rule_p = &priv->fs.vlan->any_cvlan_rule;
MLX5_SET_TO_ONES(fte_match_param, spec->match_criteria,
outer_headers.cvlan_tag);
MLX5_SET(fte_match_param, spec->match_value, outer_headers.cvlan_tag, 1);
break;
case MLX5E_VLAN_RULE_TYPE_ANY_STAG_VID:
- rule_p = &priv->fs.vlan.any_svlan_rule;
+ rule_p = &priv->fs.vlan->any_svlan_rule;
MLX5_SET_TO_ONES(fte_match_param, spec->match_criteria,
outer_headers.svlan_tag);
MLX5_SET(fte_match_param, spec->match_value, outer_headers.svlan_tag, 1);
break;
case MLX5E_VLAN_RULE_TYPE_MATCH_STAG_VID:
- rule_p = &priv->fs.vlan.active_svlans_rule[vid];
+ rule_p = &priv->fs.vlan->active_svlans_rule[vid];
MLX5_SET_TO_ONES(fte_match_param, spec->match_criteria,
outer_headers.svlan_tag);
MLX5_SET(fte_match_param, spec->match_value, outer_headers.svlan_tag, 1);
@@ -207,7 +230,7 @@ static int __mlx5e_add_vlan_rule(struct mlx5e_priv *priv,
vid);
break;
default: /* MLX5E_VLAN_RULE_TYPE_MATCH_CTAG_VID */
- rule_p = &priv->fs.vlan.active_cvlans_rule[vid];
+ rule_p = &priv->fs.vlan->active_cvlans_rule[vid];
MLX5_SET_TO_ONES(fte_match_param, spec->match_criteria,
outer_headers.cvlan_tag);
MLX5_SET(fte_match_param, spec->match_value, outer_headers.cvlan_tag, 1);
@@ -257,33 +280,33 @@ static void mlx5e_del_vlan_rule(struct mlx5e_priv *priv,
{
switch (rule_type) {
case MLX5E_VLAN_RULE_TYPE_UNTAGGED:
- if (priv->fs.vlan.untagged_rule) {
- mlx5_del_flow_rules(priv->fs.vlan.untagged_rule);
- priv->fs.vlan.untagged_rule = NULL;
+ if (priv->fs.vlan->untagged_rule) {
+ mlx5_del_flow_rules(priv->fs.vlan->untagged_rule);
+ priv->fs.vlan->untagged_rule = NULL;
}
break;
case MLX5E_VLAN_RULE_TYPE_ANY_CTAG_VID:
- if (priv->fs.vlan.any_cvlan_rule) {
- mlx5_del_flow_rules(priv->fs.vlan.any_cvlan_rule);
- priv->fs.vlan.any_cvlan_rule = NULL;
+ if (priv->fs.vlan->any_cvlan_rule) {
+ mlx5_del_flow_rules(priv->fs.vlan->any_cvlan_rule);
+ priv->fs.vlan->any_cvlan_rule = NULL;
}
break;
case MLX5E_VLAN_RULE_TYPE_ANY_STAG_VID:
- if (priv->fs.vlan.any_svlan_rule) {
- mlx5_del_flow_rules(priv->fs.vlan.any_svlan_rule);
- priv->fs.vlan.any_svlan_rule = NULL;
+ if (priv->fs.vlan->any_svlan_rule) {
+ mlx5_del_flow_rules(priv->fs.vlan->any_svlan_rule);
+ priv->fs.vlan->any_svlan_rule = NULL;
}
break;
case MLX5E_VLAN_RULE_TYPE_MATCH_STAG_VID:
- if (priv->fs.vlan.active_svlans_rule[vid]) {
- mlx5_del_flow_rules(priv->fs.vlan.active_svlans_rule[vid]);
- priv->fs.vlan.active_svlans_rule[vid] = NULL;
+ if (priv->fs.vlan->active_svlans_rule[vid]) {
+ mlx5_del_flow_rules(priv->fs.vlan->active_svlans_rule[vid]);
+ priv->fs.vlan->active_svlans_rule[vid] = NULL;
}
break;
case MLX5E_VLAN_RULE_TYPE_MATCH_CTAG_VID:
- if (priv->fs.vlan.active_cvlans_rule[vid]) {
- mlx5_del_flow_rules(priv->fs.vlan.active_cvlans_rule[vid]);
- priv->fs.vlan.active_cvlans_rule[vid] = NULL;
+ if (priv->fs.vlan->active_cvlans_rule[vid]) {
+ mlx5_del_flow_rules(priv->fs.vlan->active_cvlans_rule[vid]);
+ priv->fs.vlan->active_cvlans_rule[vid] = NULL;
}
mlx5e_vport_context_update_vlans(priv);
break;
@@ -330,27 +353,27 @@ mlx5e_add_trap_rule(struct mlx5_flow_table *ft, int trap_id, int tir_num)
int mlx5e_add_vlan_trap(struct mlx5e_priv *priv, int trap_id, int tir_num)
{
- struct mlx5_flow_table *ft = priv->fs.vlan.ft.t;
+ struct mlx5_flow_table *ft = priv->fs.vlan->ft.t;
struct mlx5_flow_handle *rule;
int err;
rule = mlx5e_add_trap_rule(ft, trap_id, tir_num);
if (IS_ERR(rule)) {
err = PTR_ERR(rule);
- priv->fs.vlan.trap_rule = NULL;
+ priv->fs.vlan->trap_rule = NULL;
netdev_err(priv->netdev, "%s: add VLAN trap rule failed, err %d\n",
__func__, err);
return err;
}
- priv->fs.vlan.trap_rule = rule;
+ priv->fs.vlan->trap_rule = rule;
return 0;
}
void mlx5e_remove_vlan_trap(struct mlx5e_priv *priv)
{
- if (priv->fs.vlan.trap_rule) {
- mlx5_del_flow_rules(priv->fs.vlan.trap_rule);
- priv->fs.vlan.trap_rule = NULL;
+ if (priv->fs.vlan->trap_rule) {
+ mlx5_del_flow_rules(priv->fs.vlan->trap_rule);
+ priv->fs.vlan->trap_rule = NULL;
}
}
@@ -382,10 +405,10 @@ void mlx5e_remove_mac_trap(struct mlx5e_priv *priv)
void mlx5e_enable_cvlan_filter(struct mlx5e_priv *priv)
{
- if (!priv->fs.vlan.cvlan_filter_disabled)
+ if (!priv->fs.vlan->cvlan_filter_disabled)
return;
- priv->fs.vlan.cvlan_filter_disabled = false;
+ priv->fs.vlan->cvlan_filter_disabled = false;
if (priv->netdev->flags & IFF_PROMISC)
return;
mlx5e_del_vlan_rule(priv, MLX5E_VLAN_RULE_TYPE_ANY_CTAG_VID, 0);
@@ -393,10 +416,10 @@ void mlx5e_enable_cvlan_filter(struct mlx5e_priv *priv)
void mlx5e_disable_cvlan_filter(struct mlx5e_priv *priv)
{
- if (priv->fs.vlan.cvlan_filter_disabled)
+ if (priv->fs.vlan->cvlan_filter_disabled)
return;
- priv->fs.vlan.cvlan_filter_disabled = true;
+ priv->fs.vlan->cvlan_filter_disabled = true;
if (priv->netdev->flags & IFF_PROMISC)
return;
mlx5e_add_vlan_rule(priv, MLX5E_VLAN_RULE_TYPE_ANY_CTAG_VID, 0);
@@ -406,11 +429,11 @@ static int mlx5e_vlan_rx_add_cvid(struct mlx5e_priv *priv, u16 vid)
{
int err;
- set_bit(vid, priv->fs.vlan.active_cvlans);
+ set_bit(vid, priv->fs.vlan->active_cvlans);
err = mlx5e_add_vlan_rule(priv, MLX5E_VLAN_RULE_TYPE_MATCH_CTAG_VID, vid);
if (err)
- clear_bit(vid, priv->fs.vlan.active_cvlans);
+ clear_bit(vid, priv->fs.vlan->active_cvlans);
return err;
}
@@ -420,11 +443,11 @@ static int mlx5e_vlan_rx_add_svid(struct mlx5e_priv *priv, u16 vid)
struct net_device *netdev = priv->netdev;
int err;
- set_bit(vid, priv->fs.vlan.active_svlans);
+ set_bit(vid, priv->fs.vlan->active_svlans);
err = mlx5e_add_vlan_rule(priv, MLX5E_VLAN_RULE_TYPE_MATCH_STAG_VID, vid);
if (err) {
- clear_bit(vid, priv->fs.vlan.active_svlans);
+ clear_bit(vid, priv->fs.vlan->active_svlans);
return err;
}
@@ -456,10 +479,10 @@ int mlx5e_vlan_rx_kill_vid(struct net_device *dev, __be16 proto, u16 vid)
return 0; /* no vlan table for uplink rep */
if (be16_to_cpu(proto) == ETH_P_8021Q) {
- clear_bit(vid, priv->fs.vlan.active_cvlans);
+ clear_bit(vid, priv->fs.vlan->active_cvlans);
mlx5e_del_vlan_rule(priv, MLX5E_VLAN_RULE_TYPE_MATCH_CTAG_VID, vid);
} else if (be16_to_cpu(proto) == ETH_P_8021AD) {
- clear_bit(vid, priv->fs.vlan.active_svlans);
+ clear_bit(vid, priv->fs.vlan->active_svlans);
mlx5e_del_vlan_rule(priv, MLX5E_VLAN_RULE_TYPE_MATCH_STAG_VID, vid);
netdev_update_features(dev);
}
@@ -473,14 +496,14 @@ static void mlx5e_add_vlan_rules(struct mlx5e_priv *priv)
mlx5e_add_vlan_rule(priv, MLX5E_VLAN_RULE_TYPE_UNTAGGED, 0);
- for_each_set_bit(i, priv->fs.vlan.active_cvlans, VLAN_N_VID) {
+ for_each_set_bit(i, priv->fs.vlan->active_cvlans, VLAN_N_VID) {
mlx5e_add_vlan_rule(priv, MLX5E_VLAN_RULE_TYPE_MATCH_CTAG_VID, i);
}
- for_each_set_bit(i, priv->fs.vlan.active_svlans, VLAN_N_VID)
+ for_each_set_bit(i, priv->fs.vlan->active_svlans, VLAN_N_VID)
mlx5e_add_vlan_rule(priv, MLX5E_VLAN_RULE_TYPE_MATCH_STAG_VID, i);
- if (priv->fs.vlan.cvlan_filter_disabled)
+ if (priv->fs.vlan->cvlan_filter_disabled)
mlx5e_add_any_vid_rules(priv);
}
@@ -490,11 +513,11 @@ static void mlx5e_del_vlan_rules(struct mlx5e_priv *priv)
mlx5e_del_vlan_rule(priv, MLX5E_VLAN_RULE_TYPE_UNTAGGED, 0);
- for_each_set_bit(i, priv->fs.vlan.active_cvlans, VLAN_N_VID) {
+ for_each_set_bit(i, priv->fs.vlan->active_cvlans, VLAN_N_VID) {
mlx5e_del_vlan_rule(priv, MLX5E_VLAN_RULE_TYPE_MATCH_CTAG_VID, i);
}
- for_each_set_bit(i, priv->fs.vlan.active_svlans, VLAN_N_VID)
+ for_each_set_bit(i, priv->fs.vlan->active_svlans, VLAN_N_VID)
mlx5e_del_vlan_rule(priv, MLX5E_VLAN_RULE_TYPE_MATCH_STAG_VID, i);
WARN_ON_ONCE(!(test_bit(MLX5E_STATE_DESTROYING, &priv->state)));
@@ -504,7 +527,7 @@ static void mlx5e_del_vlan_rules(struct mlx5e_priv *priv)
/* must be called after DESTROY bit is set and
* set_rx_mode is called and flushed
*/
- if (priv->fs.vlan.cvlan_filter_disabled)
+ if (priv->fs.vlan->cvlan_filter_disabled)
mlx5e_del_any_vid_rules(priv);
}
@@ -1692,10 +1715,15 @@ static int mlx5e_create_vlan_table_groups(struct mlx5e_flow_table *ft)
static int mlx5e_create_vlan_table(struct mlx5e_priv *priv)
{
- struct mlx5e_flow_table *ft = &priv->fs.vlan.ft;
struct mlx5_flow_table_attr ft_attr = {};
+ struct mlx5e_flow_table *ft;
int err;
+ priv->fs.vlan = kvzalloc(sizeof(*priv->fs.vlan), GFP_KERNEL);
+ if (!priv->fs.vlan)
+ return -ENOMEM;
+
+ ft = &priv->fs.vlan->ft;
ft->num_groups = 0;
ft_attr.max_fte = MLX5E_VLAN_TABLE_SIZE;
@@ -1703,12 +1731,11 @@ static int mlx5e_create_vlan_table(struct mlx5e_priv *priv)
ft_attr.prio = MLX5E_NIC_PRIO;
ft->t = mlx5_create_flow_table(priv->fs.ns, &ft_attr);
-
if (IS_ERR(ft->t)) {
err = PTR_ERR(ft->t);
- ft->t = NULL;
- return err;
+ goto err_free_t;
}
+
ft->g = kcalloc(MLX5E_NUM_VLAN_GROUPS, sizeof(*ft->g), GFP_KERNEL);
if (!ft->g) {
err = -ENOMEM;
@@ -1727,7 +1754,9 @@ static int mlx5e_create_vlan_table(struct mlx5e_priv *priv)
kfree(ft->g);
err_destroy_vlan_table:
mlx5_destroy_flow_table(ft->t);
- ft->t = NULL;
+err_free_t:
+ kvfree(priv->fs.vlan);
+ priv->fs.vlan = NULL;
return err;
}
@@ -1735,7 +1764,8 @@ static int mlx5e_create_vlan_table(struct mlx5e_priv *priv)
static void mlx5e_destroy_vlan_table(struct mlx5e_priv *priv)
{
mlx5e_del_vlan_rules(priv);
- mlx5e_destroy_flow_table(&priv->fs.vlan.ft);
+ mlx5e_destroy_flow_table(&priv->fs.vlan->ft);
+ kvfree(priv->fs.vlan);
}
int mlx5e_create_flow_steering(struct mlx5e_priv *priv)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
index db2942b61fd5..773449c1424b 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
@@ -3823,7 +3823,8 @@ static netdev_features_t mlx5e_fix_features(struct net_device *netdev,
mutex_lock(&priv->state_lock);
params = &priv->channels.params;
- if (!bitmap_empty(priv->fs.vlan.active_svlans, VLAN_N_VID)) {
+ if (!priv->fs.vlan ||
+ !bitmap_empty(mlx5e_vlan_get_active_svlans(priv->fs.vlan), VLAN_N_VID)) {
/* HW strips the outer C-tag header, this is a problem
* for S-tag traffic.
*/
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
index a4a4cdecbdea..bb1e0d442b5c 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
@@ -906,7 +906,7 @@ mlx5e_add_offloaded_nic_rule(struct mlx5e_priv *priv,
if (IS_ERR(dest[dest_ix].ft))
return ERR_CAST(dest[dest_ix].ft);
} else {
- dest[dest_ix].ft = priv->fs.vlan.ft.t;
+ dest[dest_ix].ft = mlx5e_vlan_get_flowtable(priv->fs.vlan);
}
dest_ix++;
}
@@ -4753,7 +4753,7 @@ int mlx5e_tc_nic_init(struct mlx5e_priv *priv)
attr.ns = MLX5_FLOW_NAMESPACE_KERNEL;
attr.max_ft_sz = mlx5e_tc_nic_get_ft_size(dev);
attr.max_grp_num = MLX5E_TC_TABLE_NUM_GROUPS;
- attr.default_ft = priv->fs.vlan.ft.t;
+ attr.default_ft = mlx5e_vlan_get_flowtable(priv->fs.vlan);
tc->chains = mlx5_chains_create(dev, &attr);
if (IS_ERR(tc->chains)) {
--
2.30.2
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