[PATCH 5.4 50/90] net/mlx5e: Modify uplink state on interface up/down
From: Greg Kroah-Hartman
Date: Mon Aug 03 2020 - 08:28:47 EST
From: Ron Diskin <rondi@xxxxxxxxxxxx>
[ Upstream commit 7d0314b11cdd92bca8b89684c06953bf114605fc ]
When setting the PF interface up/down, notify the firmware to update
uplink state via MODIFY_VPORT_STATE, when E-Switch is enabled.
This behavior will prevent sending traffic out on uplink port when PF is
down, such as sending traffic from a VF interface which is still up.
Currently when calling mlx5e_open/close(), the driver only sends PAOS
command to notify the firmware to set the physical port state to
up/down, however, it is not sufficient. When VF is in "auto" state, it
follows the uplink state, which was not updated on mlx5e_open/close()
before this patch.
When switchdev mode is enabled and uplink representor is first enabled,
set the uplink port state value back to its FW default "AUTO".
Fixes: 63bfd399de55 ("net/mlx5e: Send PAOS command on interface up/down")
Signed-off-by: Ron Diskin <rondi@xxxxxxxxxxxx>
Reviewed-by: Roi Dayan <roid@xxxxxxxxxxxx>
Reviewed-by: Moshe Shemesh <moshe@xxxxxxxxxxxx>
Signed-off-by: Saeed Mahameed <saeedm@xxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
.../net/ethernet/mellanox/mlx5/core/en_main.c | 25 ++++++++++++++++---
.../net/ethernet/mellanox/mlx5/core/en_rep.c | 2 ++
.../net/ethernet/mellanox/mlx5/core/eswitch.c | 16 +++++++-----
.../net/ethernet/mellanox/mlx5/core/eswitch.h | 2 ++
include/linux/mlx5/mlx5_ifc.h | 1 +
5 files changed, 37 insertions(+), 9 deletions(-)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
index 15db4a8746dd7..cb3dcfced89fa 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
@@ -3038,6 +3038,25 @@ void mlx5e_timestamp_init(struct mlx5e_priv *priv)
priv->tstamp.rx_filter = HWTSTAMP_FILTER_NONE;
}
+static void mlx5e_modify_admin_state(struct mlx5_core_dev *mdev,
+ enum mlx5_port_status state)
+{
+ struct mlx5_eswitch *esw = mdev->priv.eswitch;
+ int vport_admin_state;
+
+ mlx5_set_port_admin_status(mdev, state);
+
+ if (!MLX5_ESWITCH_MANAGER(mdev) || mlx5_eswitch_mode(esw) == MLX5_ESWITCH_OFFLOADS)
+ return;
+
+ if (state == MLX5_PORT_UP)
+ vport_admin_state = MLX5_VPORT_ADMIN_STATE_AUTO;
+ else
+ vport_admin_state = MLX5_VPORT_ADMIN_STATE_DOWN;
+
+ mlx5_eswitch_set_vport_state(esw, MLX5_VPORT_UPLINK, vport_admin_state);
+}
+
int mlx5e_open_locked(struct net_device *netdev)
{
struct mlx5e_priv *priv = netdev_priv(netdev);
@@ -3070,7 +3089,7 @@ int mlx5e_open(struct net_device *netdev)
mutex_lock(&priv->state_lock);
err = mlx5e_open_locked(netdev);
if (!err)
- mlx5_set_port_admin_status(priv->mdev, MLX5_PORT_UP);
+ mlx5e_modify_admin_state(priv->mdev, MLX5_PORT_UP);
mutex_unlock(&priv->state_lock);
if (mlx5_vxlan_allowed(priv->mdev->vxlan))
@@ -3107,7 +3126,7 @@ int mlx5e_close(struct net_device *netdev)
return -ENODEV;
mutex_lock(&priv->state_lock);
- mlx5_set_port_admin_status(priv->mdev, MLX5_PORT_DOWN);
+ mlx5e_modify_admin_state(priv->mdev, MLX5_PORT_DOWN);
err = mlx5e_close_locked(netdev);
mutex_unlock(&priv->state_lock);
@@ -5172,7 +5191,7 @@ static void mlx5e_nic_enable(struct mlx5e_priv *priv)
/* Marking the link as currently not needed by the Driver */
if (!netif_running(netdev))
- mlx5_set_port_admin_status(mdev, MLX5_PORT_DOWN);
+ mlx5e_modify_admin_state(mdev, MLX5_PORT_DOWN);
mlx5e_set_netdev_mtu_boundaries(priv);
mlx5e_set_dev_port_mtu(priv);
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c b/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c
index 9b232ef36d53b..88b51f64a64ea 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_rep.c
@@ -1736,6 +1736,8 @@ static void mlx5e_uplink_rep_enable(struct mlx5e_priv *priv)
INIT_WORK(&rpriv->uplink_priv.reoffload_flows_work,
mlx5e_tc_reoffload_flows_work);
+ mlx5_modify_vport_admin_state(mdev, MLX5_VPORT_STATE_OP_MOD_UPLINK,
+ 0, 0, MLX5_VPORT_ADMIN_STATE_AUTO);
mlx5_lag_add(mdev, netdev);
priv->events_nb.notifier_call = uplink_rep_async_event;
mlx5_notifier_register(mdev, &priv->events_nb);
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
index 422a57404407d..6b711affb7da4 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
@@ -2094,6 +2094,8 @@ int mlx5_eswitch_set_vport_state(struct mlx5_eswitch *esw,
u16 vport, int link_state)
{
struct mlx5_vport *evport = mlx5_eswitch_get_vport(esw, vport);
+ int opmod = MLX5_VPORT_STATE_OP_MOD_ESW_VPORT;
+ int other_vport = 1;
int err = 0;
if (!ESW_ALLOWED(esw))
@@ -2101,15 +2103,17 @@ int mlx5_eswitch_set_vport_state(struct mlx5_eswitch *esw,
if (IS_ERR(evport))
return PTR_ERR(evport);
+ if (vport == MLX5_VPORT_UPLINK) {
+ opmod = MLX5_VPORT_STATE_OP_MOD_UPLINK;
+ other_vport = 0;
+ vport = 0;
+ }
mutex_lock(&esw->state_lock);
- err = mlx5_modify_vport_admin_state(esw->dev,
- MLX5_VPORT_STATE_OP_MOD_ESW_VPORT,
- vport, 1, link_state);
+ err = mlx5_modify_vport_admin_state(esw->dev, opmod, vport, other_vport, link_state);
if (err) {
- mlx5_core_warn(esw->dev,
- "Failed to set vport %d link state, err = %d",
- vport, err);
+ mlx5_core_warn(esw->dev, "Failed to set vport %d link state, opmod = %d, err = %d",
+ vport, opmod, err);
goto unlock;
}
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h
index 6bd6f58952442..0ddbae1e64fad 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h
@@ -606,6 +606,8 @@ static inline int mlx5_eswitch_enable(struct mlx5_eswitch *esw, int mode) { ret
static inline void mlx5_eswitch_disable(struct mlx5_eswitch *esw) {}
static inline bool mlx5_esw_lag_prereq(struct mlx5_core_dev *dev0, struct mlx5_core_dev *dev1) { return true; }
static inline bool mlx5_eswitch_is_funcs_handler(struct mlx5_core_dev *dev) { return false; }
+static inline
+int mlx5_eswitch_set_vport_state(struct mlx5_eswitch *esw, u16 vport, int link_state) { return 0; }
static inline const u32 *mlx5_esw_query_functions(struct mlx5_core_dev *dev)
{
return ERR_PTR(-EOPNOTSUPP);
diff --git a/include/linux/mlx5/mlx5_ifc.h b/include/linux/mlx5/mlx5_ifc.h
index acd859ea09d42..aba56077cfda2 100644
--- a/include/linux/mlx5/mlx5_ifc.h
+++ b/include/linux/mlx5/mlx5_ifc.h
@@ -4177,6 +4177,7 @@ struct mlx5_ifc_query_vport_state_out_bits {
enum {
MLX5_VPORT_STATE_OP_MOD_VNIC_VPORT = 0x0,
MLX5_VPORT_STATE_OP_MOD_ESW_VPORT = 0x1,
+ MLX5_VPORT_STATE_OP_MOD_UPLINK = 0x2,
};
struct mlx5_ifc_arm_monitor_counter_in_bits {
--
2.25.1