[PATCH v4 net-next 1/9] net: switchdev: propagate extack to port attributes

Vladimir Oltean
2021-02-12T01:06:33Z

When a struct switchdev_attr is notified through switchdev, there is no
way to report informational messages, unlike for struct switchdev_obj.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
---
Changes in v3:
None.

Changes in v2:
Patch is new.

.../ethernet/marvell/prestera/prestera_switchdev.c | 3 ++-
.../net/ethernet/mellanox/mlxsw/spectrum_switchdev.c | 3 ++-
drivers/net/ethernet/mscc/ocelot_net.c | 3 ++-
drivers/net/ethernet/ti/cpsw_switchdev.c | 3 ++-
include/net/switchdev.h | 6 ++++--
net/dsa/slave.c | 3 ++-
net/switchdev/switchdev.c | 11 ++++++++---
7 files changed, 22 insertions(+), 10 deletions(-)

diff --git a/drivers/net/ethernet/marvell/prestera/prestera_switchdev.c b/drivers/net/ethernet/marvell/prestera/prestera_switchdev.c
index 8c2b03151736..2c1619715a4b 100644
--- a/drivers/net/ethernet/marvell/prestera/prestera_switchdev.c
+++ b/drivers/net/ethernet/marvell/prestera/prestera_switchdev.c
@@ -695,7 +695,8 @@ static int prestera_port_attr_stp_state_set(struct prestera_port *port,
}

static int prestera_port_obj_attr_set(struct net_device *dev,
- const struct switchdev_attr *attr)
+ const struct switchdev_attr *attr,
+ struct netlink_ext_ack *extack)
{
struct prestera_port *port = netdev_priv(dev);
int err = 0;
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c
index 20c4f3c2cf23..18e4f1cd5587 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c
@@ -887,7 +887,8 @@ mlxsw_sp_port_attr_br_mrouter_set(struct mlxsw_sp_port *mlxsw_sp_port,
}

static int mlxsw_sp_port_attr_set(struct net_device *dev,
- const struct switchdev_attr *attr)
+ const struct switchdev_attr *attr,
+ struct netlink_ext_ack *extack)
{
struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
int err;
diff --git a/drivers/net/ethernet/mscc/ocelot_net.c b/drivers/net/ethernet/mscc/ocelot_net.c
index 8f12fa45b1b5..f9da4aa39444 100644
--- a/drivers/net/ethernet/mscc/ocelot_net.c
+++ b/drivers/net/ethernet/mscc/ocelot_net.c
@@ -1005,7 +1005,8 @@ static void ocelot_port_attr_mc_set(struct ocelot *ocelot, int port, bool mc)
}

static int ocelot_port_attr_set(struct net_device *dev,
- const struct switchdev_attr *attr)
+ const struct switchdev_attr *attr,
+ struct netlink_ext_ack *extack)
{
struct ocelot_port_private *priv = netdev_priv(dev);
struct ocelot *ocelot = priv->port.ocelot;
diff --git a/drivers/net/ethernet/ti/cpsw_switchdev.c b/drivers/net/ethernet/ti/cpsw_switchdev.c
index 9967cf985728..13524cbaa8b6 100644
--- a/drivers/net/ethernet/ti/cpsw_switchdev.c
+++ b/drivers/net/ethernet/ti/cpsw_switchdev.c
@@ -83,7 +83,8 @@ static int cpsw_port_attr_br_flags_pre_set(struct net_device *netdev,
}

static int cpsw_port_attr_set(struct net_device *ndev,
- const struct switchdev_attr *attr)
+ const struct switchdev_attr *attr,
+ struct netlink_ext_ack *extack)
{
struct cpsw_priv *priv = netdev_priv(ndev);
int ret;
diff --git a/include/net/switchdev.h b/include/net/switchdev.h
index 6dcfc4c51a6e..9279d4245bab 100644
--- a/include/net/switchdev.h
+++ b/include/net/switchdev.h
@@ -281,7 +281,8 @@ int switchdev_handle_port_attr_set(struct net_device *dev,
struct switchdev_notifier_port_attr_info *port_attr_info,
bool (*check_cb)(const struct net_device *dev),
int (*set_cb)(struct net_device *dev,
- const struct switchdev_attr *attr));
+ const struct switchdev_attr *attr,
+ struct netlink_ext_ack *extack));
#else

static inline void switchdev_deferred_process(void)
@@ -372,7 +373,8 @@ switchdev_handle_port_attr_set(struct net_device *dev,
struct switchdev_notifier_port_attr_info *port_attr_info,
bool (*check_cb)(const struct net_device *dev),
int (*set_cb)(struct net_device *dev,
- const struct switchdev_attr *attr))
+ const struct switchdev_attr *attr,
+ struct netlink_ext_ack *extack))
{
return 0;
}
diff --git a/net/dsa/slave.c b/net/dsa/slave.c
index 431bdbdd8473..8f4c7c232e2c 100644
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c
@@ -271,7 +271,8 @@ static int dsa_slave_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
}

static int dsa_slave_port_attr_set(struct net_device *dev,
- const struct switchdev_attr *attr)
+ const struct switchdev_attr *attr,
+ struct netlink_ext_ack *extack)
{
struct dsa_port *dp = dsa_slave_to_port(dev);
int ret;
diff --git a/net/switchdev/switchdev.c b/net/switchdev/switchdev.c
index 94113ca29dcf..0b84f076591e 100644
--- a/net/switchdev/switchdev.c
+++ b/net/switchdev/switchdev.c
@@ -488,14 +488,18 @@ static int __switchdev_handle_port_attr_set(struct net_device *dev,
struct switchdev_notifier_port_attr_info *port_attr_info,
bool (*check_cb)(const struct net_device *dev),
int (*set_cb)(struct net_device *dev,
- const struct switchdev_attr *attr))
+ const struct switchdev_attr *attr,
+ struct netlink_ext_ack *extack))
{
+ struct netlink_ext_ack *extack;
struct net_device *lower_dev;
struct list_head *iter;
int err = -EOPNOTSUPP;

+ extack = switchdev_notifier_info_to_extack(&port_attr_info->info);
+
if (check_cb(dev)) {
- err = set_cb(dev, port_attr_info->attr);
+ err = set_cb(dev, port_attr_info->attr, extack);
if (err != -EOPNOTSUPP)
port_attr_info->handled = true;
return err;
@@ -525,7 +529,8 @@ int switchdev_handle_port_attr_set(struct net_device *dev,
struct switchdev_notifier_port_attr_info *port_attr_info,
bool (*check_cb)(const struct net_device *dev),
int (*set_cb)(struct net_device *dev,
- const struct switchdev_attr *attr))
+ const struct switchdev_attr *attr,
+ struct netlink_ext_ack *extack))
{
int err;

--
2.25.1