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Date: Fri, 29 May 2020 02:25:38 +0200
From: Pablo Neira Ayuso <pablo@...filter.org>
To: netfilter-devel@...r.kernel.org
Cc: davem@...emloft.net, netdev@...r.kernel.org, paulb@...lanox.com,
ozsh@...lanox.com, vladbu@...lanox.com, jiri@...nulli.us,
kuba@...nel.org, saeedm@...lanox.com, michael.chan@...adcom.com,
sriharsha.basavapatna@...adcom.com
Subject: [PATCH net-next 5/8] mlx5: update indirect block support
Register ndo callback via flow_indr_dev_register() and
flow_indr_dev_unregister().
No need for mlx5e_rep_indr_clean_block_privs() since flow_block_cb_free()
already releases the internal mapping via ->release callback, which in
this case is mlx5e_rep_indr_tc_block_unbind().
Signed-off-by: Pablo Neira Ayuso <pablo@...filter.org>
---
.../ethernet/mellanox/mlx5/core/en/rep/tc.c | 81 ++-----------------
.../ethernet/mellanox/mlx5/core/en/rep/tc.h | 4 -
.../net/ethernet/mellanox/mlx5/core/en_rep.c | 1 -
.../net/ethernet/mellanox/mlx5/core/en_rep.h | 5 --
4 files changed, 8 insertions(+), 83 deletions(-)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/rep/tc.c b/drivers/net/ethernet/mellanox/mlx5/core/en/rep/tc.c
index c609a5e50ebc..80713123de5c 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/rep/tc.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/rep/tc.c
@@ -306,20 +306,6 @@ mlx5e_rep_indr_block_priv_lookup(struct mlx5e_rep_priv *rpriv,
return NULL;
}
-static void mlx5e_rep_indr_unregister_block(struct mlx5e_rep_priv *rpriv,
- struct net_device *netdev);
-
-void mlx5e_rep_indr_clean_block_privs(struct mlx5e_rep_priv *rpriv)
-{
- struct mlx5e_rep_indr_block_priv *cb_priv, *temp;
- struct list_head *head = &rpriv->uplink_priv.tc_indr_block_priv_list;
-
- list_for_each_entry_safe(cb_priv, temp, head, list) {
- mlx5e_rep_indr_unregister_block(rpriv, cb_priv->netdev);
- kfree(cb_priv);
- }
-}
-
static int
mlx5e_rep_indr_offload(struct net_device *netdev,
struct flow_cls_offload *flower,
@@ -423,9 +409,14 @@ mlx5e_rep_indr_setup_block(struct net_device *netdev,
struct flow_block_offload *f,
flow_setup_cb_t *setup_cb)
{
+ struct mlx5e_priv *priv = netdev_priv(rpriv->netdev);
struct mlx5e_rep_indr_block_priv *indr_priv;
struct flow_block_cb *block_cb;
+ if (!mlx5e_tc_tun_device_to_offload(priv, netdev) &&
+ !(is_vlan_dev(netdev) && vlan_dev_real_dev(netdev) == rpriv->netdev))
+ return -EOPNOTSUPP;
+
if (f->binder_type != FLOW_BLOCK_BINDER_TYPE_CLSACT_INGRESS)
return -EOPNOTSUPP;
@@ -492,76 +483,20 @@ int mlx5e_rep_indr_setup_cb(struct net_device *netdev, void *cb_priv,
}
}
-static int mlx5e_rep_indr_register_block(struct mlx5e_rep_priv *rpriv,
- struct net_device *netdev)
-{
- int err;
-
- err = __flow_indr_block_cb_register(netdev, rpriv,
- mlx5e_rep_indr_setup_cb,
- rpriv);
- if (err) {
- struct mlx5e_priv *priv = netdev_priv(rpriv->netdev);
-
- mlx5_core_err(priv->mdev, "Failed to register remote block notifier for %s err=%d\n",
- netdev_name(netdev), err);
- }
- return err;
-}
-
-static void mlx5e_rep_indr_unregister_block(struct mlx5e_rep_priv *rpriv,
- struct net_device *netdev)
-{
- __flow_indr_block_cb_unregister(netdev, mlx5e_rep_indr_setup_cb,
- rpriv);
-}
-
-static int mlx5e_nic_rep_netdevice_event(struct notifier_block *nb,
- unsigned long event, void *ptr)
-{
- struct mlx5e_rep_priv *rpriv = container_of(nb, struct mlx5e_rep_priv,
- uplink_priv.netdevice_nb);
- struct mlx5e_priv *priv = netdev_priv(rpriv->netdev);
- struct net_device *netdev = netdev_notifier_info_to_dev(ptr);
-
- if (!mlx5e_tc_tun_device_to_offload(priv, netdev) &&
- !(is_vlan_dev(netdev) && vlan_dev_real_dev(netdev) == rpriv->netdev))
- return NOTIFY_OK;
-
- switch (event) {
- case NETDEV_REGISTER:
- mlx5e_rep_indr_register_block(rpriv, netdev);
- break;
- case NETDEV_UNREGISTER:
- mlx5e_rep_indr_unregister_block(rpriv, netdev);
- break;
- }
- return NOTIFY_OK;
-}
-
int mlx5e_rep_tc_netdevice_event_register(struct mlx5e_rep_priv *rpriv)
{
struct mlx5_rep_uplink_priv *uplink_priv = &rpriv->uplink_priv;
- int err;
/* init indirect block notifications */
INIT_LIST_HEAD(&uplink_priv->tc_indr_block_priv_list);
- uplink_priv->netdevice_nb.notifier_call = mlx5e_nic_rep_netdevice_event;
- err = register_netdevice_notifier_dev_net(rpriv->netdev,
- &uplink_priv->netdevice_nb,
- &uplink_priv->netdevice_nn);
- return err;
+ return flow_indr_dev_register(mlx5e_rep_indr_setup_cb, rpriv);
}
void mlx5e_rep_tc_netdevice_event_unregister(struct mlx5e_rep_priv *rpriv)
{
- struct mlx5_rep_uplink_priv *uplink_priv = &rpriv->uplink_priv;
-
- /* clean indirect TC block notifications */
- unregister_netdevice_notifier_dev_net(rpriv->netdev,
- &uplink_priv->netdevice_nb,
- &uplink_priv->netdevice_nn);
+ flow_indr_dev_unregister(mlx5e_rep_indr_setup_cb, rpriv,
+ mlx5e_rep_indr_setup_tc_cb);
}
#if IS_ENABLED(CONFIG_NET_TC_SKB_EXT)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/rep/tc.h b/drivers/net/ethernet/mellanox/mlx5/core/en/rep/tc.h
index 86f92abf2fdd..fdf9702c2d7d 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/rep/tc.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/rep/tc.h
@@ -33,7 +33,6 @@ void mlx5e_rep_encap_entry_detach(struct mlx5e_priv *priv,
int mlx5e_rep_setup_tc(struct net_device *dev, enum tc_setup_type type,
void *type_data);
-void mlx5e_rep_indr_clean_block_privs(struct mlx5e_rep_priv *rpriv);
bool mlx5e_rep_tc_update_skb(struct mlx5_cqe64 *cqe,
struct sk_buff *skb,
@@ -65,9 +64,6 @@ static inline int
mlx5e_rep_setup_tc(struct net_device *dev, enum tc_setup_type type,
void *type_data) { return -EOPNOTSUPP; }
-static inline void
-mlx5e_rep_indr_clean_block_privs(struct mlx5e_rep_priv *rpriv) {}
-
struct mlx5e_tc_update_priv;
static inline bool
mlx5e_rep_tc_update_skb(struct mlx5_cqe64 *cqe,
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c b/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c
index 4e13e37a9ecd..fd8d198797ae 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c
@@ -1000,7 +1000,6 @@ static int mlx5e_init_rep_tx(struct mlx5e_priv *priv)
static void mlx5e_cleanup_uplink_rep_tx(struct mlx5e_rep_priv *rpriv)
{
mlx5e_rep_tc_netdevice_event_unregister(rpriv);
- mlx5e_rep_indr_clean_block_privs(rpriv);
mlx5e_rep_tc_cleanup(rpriv);
}
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_rep.h b/drivers/net/ethernet/mellanox/mlx5/core/en_rep.h
index 1c4af8522467..64a19eebe5e6 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_rep.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_rep.h
@@ -68,13 +68,8 @@ struct mlx5_rep_uplink_priv {
* tc_indr_block_cb_priv_list is used to lookup indirect callback
* private data
*
- * netdevice_nb is the netdev events notifier - used to register
- * tunnel devices for block events
- *
*/
struct list_head tc_indr_block_priv_list;
- struct notifier_block netdevice_nb;
- struct netdev_net_notifier netdevice_nn;
struct mlx5_tun_entropy tun_entropy;
--
2.20.1
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