* [PATCH net-next 1/7] net: Add extack to netdev_notifier_info
2017-10-04 4:58 [PATCH net-next 0/7] net: Plumb extack error reporting to enslavements David Ahern
@ 2017-10-04 4:58 ` David Ahern
2017-10-04 4:58 ` [PATCH net-next 2/7] net: Add extack to ndo_add_slave David Ahern
` (5 subsequent siblings)
6 siblings, 0 replies; 17+ messages in thread
From: David Ahern @ 2017-10-04 4:58 UTC (permalink / raw)
To: netdev; +Cc: j.vosburgh, vfalico, andy, jiri, idosch, davem, bridge,
David Ahern
Add netlink_ext_ack to netdev_notifier_info to allow notifier
handlers to return errors to userspace.
Clean up the initialization in dev.c such that extack is easily
added in subsequent patches where relevant. Specifically, remove
the init call in call_netdevice_notifiers_info and have callers
initalize on stack when info is declared.
Signed-off-by: David Ahern <dsahern@gmail.com>
---
include/linux/netdevice.h | 10 +++++-
net/core/dev.c | 79 ++++++++++++++++++++++++++++-------------------
2 files changed, 56 insertions(+), 33 deletions(-)
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index d04424cfffba..05fcaba4b0d9 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -2309,7 +2309,8 @@ int register_netdevice_notifier(struct notifier_block *nb);
int unregister_netdevice_notifier(struct notifier_block *nb);
struct netdev_notifier_info {
- struct net_device *dev;
+ struct net_device *dev;
+ struct netlink_ext_ack *extack;
};
struct netdev_notifier_change_info {
@@ -2334,6 +2335,7 @@ static inline void netdev_notifier_info_init(struct netdev_notifier_info *info,
struct net_device *dev)
{
info->dev = dev;
+ info->extack = NULL;
}
static inline struct net_device *
@@ -2342,6 +2344,12 @@ netdev_notifier_info_to_dev(const struct netdev_notifier_info *info)
return info->dev;
}
+static inline struct netlink_ext_ack *
+netdev_notifier_info_to_extack(const struct netdev_notifier_info *info)
+{
+ return info->extack;
+}
+
int call_netdevice_notifiers(unsigned long val, struct net_device *dev);
diff --git a/net/core/dev.c b/net/core/dev.c
index 1770097cfd86..dbeeefebfbb7 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -162,7 +162,6 @@ static struct list_head offload_base __read_mostly;
static int netif_rx_internal(struct sk_buff *skb);
static int call_netdevice_notifiers_info(unsigned long val,
- struct net_device *dev,
struct netdev_notifier_info *info);
static struct napi_struct *napi_by_id(unsigned int napi_id);
@@ -1338,10 +1337,11 @@ EXPORT_SYMBOL(netdev_features_change);
void netdev_state_change(struct net_device *dev)
{
if (dev->flags & IFF_UP) {
- struct netdev_notifier_change_info change_info;
+ struct netdev_notifier_change_info change_info = {
+ .info.dev = dev,
+ };
- change_info.flags_changed = 0;
- call_netdevice_notifiers_info(NETDEV_CHANGE, dev,
+ call_netdevice_notifiers_info(NETDEV_CHANGE,
&change_info.info);
rtmsg_ifinfo(RTM_NEWLINK, dev, 0, GFP_KERNEL);
}
@@ -1562,9 +1562,10 @@ EXPORT_SYMBOL(dev_disable_lro);
static int call_netdevice_notifier(struct notifier_block *nb, unsigned long val,
struct net_device *dev)
{
- struct netdev_notifier_info info;
+ struct netdev_notifier_info info = {
+ .dev = dev,
+ };
- netdev_notifier_info_init(&info, dev);
return nb->notifier_call(nb, val, &info);
}
@@ -1689,11 +1690,9 @@ EXPORT_SYMBOL(unregister_netdevice_notifier);
*/
static int call_netdevice_notifiers_info(unsigned long val,
- struct net_device *dev,
struct netdev_notifier_info *info)
{
ASSERT_RTNL();
- netdev_notifier_info_init(info, dev);
return raw_notifier_call_chain(&netdev_chain, val, info);
}
@@ -1708,9 +1707,11 @@ static int call_netdevice_notifiers_info(unsigned long val,
int call_netdevice_notifiers(unsigned long val, struct net_device *dev)
{
- struct netdev_notifier_info info;
+ struct netdev_notifier_info info = {
+ .dev = dev,
+ };
- return call_netdevice_notifiers_info(val, dev, &info);
+ return call_netdevice_notifiers_info(val, &info);
}
EXPORT_SYMBOL(call_netdevice_notifiers);
@@ -6277,7 +6278,15 @@ static int __netdev_upper_dev_link(struct net_device *dev,
struct net_device *upper_dev, bool master,
void *upper_priv, void *upper_info)
{
- struct netdev_notifier_changeupper_info changeupper_info;
+ struct netdev_notifier_changeupper_info changeupper_info = {
+ .info = {
+ .dev = dev,
+ },
+ .upper_dev = upper_dev,
+ .master = master,
+ .linking = true,
+ .upper_info = upper_info,
+ };
int ret = 0;
ASSERT_RTNL();
@@ -6295,12 +6304,7 @@ static int __netdev_upper_dev_link(struct net_device *dev,
if (master && netdev_master_upper_dev_get(dev))
return -EBUSY;
- changeupper_info.upper_dev = upper_dev;
- changeupper_info.master = master;
- changeupper_info.linking = true;
- changeupper_info.upper_info = upper_info;
-
- ret = call_netdevice_notifiers_info(NETDEV_PRECHANGEUPPER, dev,
+ ret = call_netdevice_notifiers_info(NETDEV_PRECHANGEUPPER,
&changeupper_info.info);
ret = notifier_to_errno(ret);
if (ret)
@@ -6311,7 +6315,7 @@ static int __netdev_upper_dev_link(struct net_device *dev,
if (ret)
return ret;
- ret = call_netdevice_notifiers_info(NETDEV_CHANGEUPPER, dev,
+ ret = call_netdevice_notifiers_info(NETDEV_CHANGEUPPER,
&changeupper_info.info);
ret = notifier_to_errno(ret);
if (ret)
@@ -6375,20 +6379,24 @@ EXPORT_SYMBOL(netdev_master_upper_dev_link);
void netdev_upper_dev_unlink(struct net_device *dev,
struct net_device *upper_dev)
{
- struct netdev_notifier_changeupper_info changeupper_info;
+ struct netdev_notifier_changeupper_info changeupper_info = {
+ .info = {
+ .dev = dev,
+ },
+ .upper_dev = upper_dev,
+ .linking = false,
+ };
ASSERT_RTNL();
- changeupper_info.upper_dev = upper_dev;
changeupper_info.master = netdev_master_upper_dev_get(dev) == upper_dev;
- changeupper_info.linking = false;
- call_netdevice_notifiers_info(NETDEV_PRECHANGEUPPER, dev,
+ call_netdevice_notifiers_info(NETDEV_PRECHANGEUPPER,
&changeupper_info.info);
__netdev_adjacent_dev_unlink_neighbour(dev, upper_dev);
- call_netdevice_notifiers_info(NETDEV_CHANGEUPPER, dev,
+ call_netdevice_notifiers_info(NETDEV_CHANGEUPPER,
&changeupper_info.info);
}
EXPORT_SYMBOL(netdev_upper_dev_unlink);
@@ -6404,11 +6412,13 @@ EXPORT_SYMBOL(netdev_upper_dev_unlink);
void netdev_bonding_info_change(struct net_device *dev,
struct netdev_bonding_info *bonding_info)
{
- struct netdev_notifier_bonding_info info;
+ struct netdev_notifier_bonding_info info = {
+ .info.dev = dev,
+ };
memcpy(&info.bonding_info, bonding_info,
sizeof(struct netdev_bonding_info));
- call_netdevice_notifiers_info(NETDEV_BONDING_INFO, dev,
+ call_netdevice_notifiers_info(NETDEV_BONDING_INFO,
&info.info);
}
EXPORT_SYMBOL(netdev_bonding_info_change);
@@ -6534,11 +6544,13 @@ EXPORT_SYMBOL(dev_get_nest_level);
void netdev_lower_state_changed(struct net_device *lower_dev,
void *lower_state_info)
{
- struct netdev_notifier_changelowerstate_info changelowerstate_info;
+ struct netdev_notifier_changelowerstate_info changelowerstate_info = {
+ .info.dev = lower_dev,
+ };
ASSERT_RTNL();
changelowerstate_info.lower_state_info = lower_state_info;
- call_netdevice_notifiers_info(NETDEV_CHANGELOWERSTATE, lower_dev,
+ call_netdevice_notifiers_info(NETDEV_CHANGELOWERSTATE,
&changelowerstate_info.info);
}
EXPORT_SYMBOL(netdev_lower_state_changed);
@@ -6829,11 +6841,14 @@ void __dev_notify_flags(struct net_device *dev, unsigned int old_flags,
if (dev->flags & IFF_UP &&
(changes & ~(IFF_UP | IFF_PROMISC | IFF_ALLMULTI | IFF_VOLATILE))) {
- struct netdev_notifier_change_info change_info;
-
- change_info.flags_changed = changes;
- call_netdevice_notifiers_info(NETDEV_CHANGE, dev,
- &change_info.info);
+ struct netdev_notifier_change_info change_info = {
+ .info = {
+ .dev = dev,
+ },
+ .flags_changed = changes,
+ };
+
+ call_netdevice_notifiers_info(NETDEV_CHANGE, &change_info.info);
}
}
--
2.1.4
^ permalink raw reply related [flat|nested] 17+ messages in thread* [PATCH net-next 2/7] net: Add extack to ndo_add_slave
2017-10-04 4:58 [PATCH net-next 0/7] net: Plumb extack error reporting to enslavements David Ahern
2017-10-04 4:58 ` [PATCH net-next 1/7] net: Add extack to netdev_notifier_info David Ahern
@ 2017-10-04 4:58 ` David Ahern
2017-10-04 4:58 ` [PATCH net-next 3/7] net: Add extack to upper device linking David Ahern
` (4 subsequent siblings)
6 siblings, 0 replies; 17+ messages in thread
From: David Ahern @ 2017-10-04 4:58 UTC (permalink / raw)
To: netdev; +Cc: j.vosburgh, vfalico, andy, jiri, idosch, davem, bridge,
David Ahern
Pass extack to do_set_master and down to ndo_add_slave
Signed-off-by: David Ahern <dsahern@gmail.com>
---
drivers/net/bonding/bond_main.c | 5 +++--
drivers/net/bonding/bond_options.c | 2 +-
drivers/net/team/team.c | 3 ++-
drivers/net/vrf.c | 3 ++-
include/linux/netdevice.h | 3 ++-
include/net/bonding.h | 3 ++-
net/batman-adv/soft-interface.c | 3 ++-
net/bridge/br_device.c | 3 ++-
net/core/rtnetlink.c | 10 ++++++----
9 files changed, 22 insertions(+), 13 deletions(-)
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index b19dc033fb36..78feb94a36db 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -1328,7 +1328,8 @@ void bond_lower_state_changed(struct slave *slave)
}
/* enslave device <slave> to bond device <master> */
-int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev)
+int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev,
+ struct netlink_ext_ack *extack)
{
struct bonding *bond = netdev_priv(bond_dev);
const struct net_device_ops *slave_ops = slave_dev->netdev_ops;
@@ -3492,7 +3493,7 @@ static int bond_do_ioctl(struct net_device *bond_dev, struct ifreq *ifr, int cmd
switch (cmd) {
case BOND_ENSLAVE_OLD:
case SIOCBONDENSLAVE:
- res = bond_enslave(bond_dev, slave_dev);
+ res = bond_enslave(bond_dev, slave_dev, NULL);
break;
case BOND_RELEASE_OLD:
case SIOCBONDRELEASE:
diff --git a/drivers/net/bonding/bond_options.c b/drivers/net/bonding/bond_options.c
index 5931aa2fe997..8a9b085c2a98 100644
--- a/drivers/net/bonding/bond_options.c
+++ b/drivers/net/bonding/bond_options.c
@@ -1383,7 +1383,7 @@ static int bond_option_slaves_set(struct bonding *bond,
switch (command[0]) {
case '+':
netdev_dbg(bond->dev, "Adding slave %s\n", dev->name);
- ret = bond_enslave(bond->dev, dev);
+ ret = bond_enslave(bond->dev, dev, NULL);
break;
case '-':
diff --git a/drivers/net/team/team.c b/drivers/net/team/team.c
index ae53e899259f..4359d45aa131 100644
--- a/drivers/net/team/team.c
+++ b/drivers/net/team/team.c
@@ -1914,7 +1914,8 @@ static int team_netpoll_setup(struct net_device *dev,
}
#endif
-static int team_add_slave(struct net_device *dev, struct net_device *port_dev)
+static int team_add_slave(struct net_device *dev, struct net_device *port_dev,
+ struct netlink_ext_ack *extack)
{
struct team *team = netdev_priv(dev);
int err;
diff --git a/drivers/net/vrf.c b/drivers/net/vrf.c
index cc18b7b11612..4a082ef53533 100644
--- a/drivers/net/vrf.c
+++ b/drivers/net/vrf.c
@@ -788,7 +788,8 @@ static int do_vrf_add_slave(struct net_device *dev, struct net_device *port_dev)
return ret;
}
-static int vrf_add_slave(struct net_device *dev, struct net_device *port_dev)
+static int vrf_add_slave(struct net_device *dev, struct net_device *port_dev,
+ struct netlink_ext_ack *extack)
{
if (netif_is_l3_master(port_dev) || netif_is_l3_slave(port_dev))
return -EINVAL;
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 05fcaba4b0d9..368a5064a487 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -1246,7 +1246,8 @@ struct net_device_ops {
u32 flow_id);
#endif
int (*ndo_add_slave)(struct net_device *dev,
- struct net_device *slave_dev);
+ struct net_device *slave_dev,
+ struct netlink_ext_ack *extack);
int (*ndo_del_slave)(struct net_device *dev,
struct net_device *slave_dev);
netdev_features_t (*ndo_fix_features)(struct net_device *dev,
diff --git a/include/net/bonding.h b/include/net/bonding.h
index b2e68657a216..2860cc66c2bb 100644
--- a/include/net/bonding.h
+++ b/include/net/bonding.h
@@ -596,7 +596,8 @@ void bond_destroy_sysfs(struct bond_net *net);
void bond_prepare_sysfs_group(struct bonding *bond);
int bond_sysfs_slave_add(struct slave *slave);
void bond_sysfs_slave_del(struct slave *slave);
-int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev);
+int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev,
+ struct netlink_ext_ack *extack);
int bond_release(struct net_device *bond_dev, struct net_device *slave_dev);
u32 bond_xmit_hash(struct bonding *bond, struct sk_buff *skb);
int bond_set_carrier(struct bonding *bond);
diff --git a/net/batman-adv/soft-interface.c b/net/batman-adv/soft-interface.c
index c2c986746d0b..e7d5fbb6ad53 100644
--- a/net/batman-adv/soft-interface.c
+++ b/net/batman-adv/soft-interface.c
@@ -867,7 +867,8 @@ static int batadv_softif_init_late(struct net_device *dev)
* Return: 0 if successful or error otherwise.
*/
static int batadv_softif_slave_add(struct net_device *dev,
- struct net_device *slave_dev)
+ struct net_device *slave_dev,
+ struct netlink_ext_ack *extack)
{
struct batadv_hard_iface *hard_iface;
struct net *net = dev_net(dev);
diff --git a/net/bridge/br_device.c b/net/bridge/br_device.c
index f6b6a92f1c48..cb0131d70ab1 100644
--- a/net/bridge/br_device.c
+++ b/net/bridge/br_device.c
@@ -320,7 +320,8 @@ void br_netpoll_disable(struct net_bridge_port *p)
#endif
-static int br_add_slave(struct net_device *dev, struct net_device *slave_dev)
+static int br_add_slave(struct net_device *dev, struct net_device *slave_dev,
+ struct netlink_ext_ack *extack)
{
struct net_bridge *br = netdev_priv(dev);
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index 3961f87cdc76..1b355219e520 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -1964,7 +1964,8 @@ static int do_setvfinfo(struct net_device *dev, struct nlattr **tb)
return err;
}
-static int do_set_master(struct net_device *dev, int ifindex)
+static int do_set_master(struct net_device *dev, int ifindex,
+ struct netlink_ext_ack *extack)
{
struct net_device *upper_dev = netdev_master_upper_dev_get(dev);
const struct net_device_ops *ops;
@@ -1989,7 +1990,7 @@ static int do_set_master(struct net_device *dev, int ifindex)
return -EINVAL;
ops = upper_dev->netdev_ops;
if (ops->ndo_add_slave) {
- err = ops->ndo_add_slave(upper_dev, dev);
+ err = ops->ndo_add_slave(upper_dev, dev, extack);
if (err)
return err;
} else {
@@ -2122,7 +2123,7 @@ static int do_setlink(const struct sk_buff *skb,
}
if (tb[IFLA_MASTER]) {
- err = do_set_master(dev, nla_get_u32(tb[IFLA_MASTER]));
+ err = do_set_master(dev, nla_get_u32(tb[IFLA_MASTER]), extack);
if (err)
goto errout;
status |= DO_SETLINK_MODIFIED;
@@ -2766,7 +2767,8 @@ static int rtnl_newlink(struct sk_buff *skb, struct nlmsghdr *nlh,
goto out_unregister;
}
if (tb[IFLA_MASTER]) {
- err = do_set_master(dev, nla_get_u32(tb[IFLA_MASTER]));
+ err = do_set_master(dev, nla_get_u32(tb[IFLA_MASTER]),
+ extack);
if (err)
goto out_unregister;
}
--
2.1.4
^ permalink raw reply related [flat|nested] 17+ messages in thread* [PATCH net-next 3/7] net: Add extack to upper device linking
2017-10-04 4:58 [PATCH net-next 0/7] net: Plumb extack error reporting to enslavements David Ahern
2017-10-04 4:58 ` [PATCH net-next 1/7] net: Add extack to netdev_notifier_info David Ahern
2017-10-04 4:58 ` [PATCH net-next 2/7] net: Add extack to ndo_add_slave David Ahern
@ 2017-10-04 4:58 ` David Ahern
2017-10-04 4:58 ` [PATCH net-next 4/7] net: vrf: Add extack messages for enslave errors David Ahern
` (3 subsequent siblings)
6 siblings, 0 replies; 17+ messages in thread
From: David Ahern @ 2017-10-04 4:58 UTC (permalink / raw)
To: netdev; +Cc: j.vosburgh, vfalico, andy, jiri, idosch, davem, bridge,
David Ahern
Add extack arg to netdev_upper_dev_link and netdev_master_upper_dev_link
Signed-off-by: David Ahern <dsahern@gmail.com>
---
drivers/net/bonding/bond_main.c | 7 ++++---
drivers/net/ethernet/qualcomm/rmnet/rmnet_config.c | 2 +-
drivers/net/hyperv/netvsc_drv.c | 2 +-
drivers/net/ipvlan/ipvlan_main.c | 2 +-
drivers/net/macsec.c | 2 +-
drivers/net/macvlan.c | 7 ++++---
drivers/net/macvtap.c | 2 +-
drivers/net/team/team.c | 2 +-
drivers/net/usb/qmi_wwan.c | 2 +-
drivers/net/vrf.c | 7 ++++---
include/linux/if_macvlan.h | 3 ++-
include/linux/netdevice.h | 6 ++++--
net/8021q/vlan.c | 6 +++---
net/8021q/vlan.h | 2 +-
net/8021q/vlan_netlink.c | 2 +-
net/batman-adv/hard-interface.c | 2 +-
net/bridge/br_if.c | 2 +-
net/core/dev.c | 15 ++++++++++-----
net/openvswitch/vport-netdev.c | 3 ++-
19 files changed, 44 insertions(+), 32 deletions(-)
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 78feb94a36db..bc92307c2082 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -1217,14 +1217,15 @@ static enum netdev_lag_tx_type bond_lag_tx_type(struct bonding *bond)
}
}
-static int bond_master_upper_dev_link(struct bonding *bond, struct slave *slave)
+static int bond_master_upper_dev_link(struct bonding *bond, struct slave *slave,
+ struct netlink_ext_ack *extack)
{
struct netdev_lag_upper_info lag_upper_info;
int err;
lag_upper_info.tx_type = bond_lag_tx_type(bond);
err = netdev_master_upper_dev_link(slave->dev, bond->dev, slave,
- &lag_upper_info);
+ &lag_upper_info, extack);
if (err)
return err;
rtmsg_ifinfo(RTM_NEWLINK, slave->dev, IFF_SLAVE, GFP_KERNEL);
@@ -1710,7 +1711,7 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev,
goto err_detach;
}
- res = bond_master_upper_dev_link(bond, new_slave);
+ res = bond_master_upper_dev_link(bond, new_slave, extack);
if (res) {
netdev_dbg(bond_dev, "Error %d calling bond_master_upper_dev_link\n", res);
goto err_unregister;
diff --git a/drivers/net/ethernet/qualcomm/rmnet/rmnet_config.c b/drivers/net/ethernet/qualcomm/rmnet/rmnet_config.c
index 98f22551eb45..1af326a60cbb 100644
--- a/drivers/net/ethernet/qualcomm/rmnet/rmnet_config.c
+++ b/drivers/net/ethernet/qualcomm/rmnet/rmnet_config.c
@@ -178,7 +178,7 @@ static int rmnet_newlink(struct net *src_net, struct net_device *dev,
if (err)
goto err1;
- err = netdev_master_upper_dev_link(dev, real_dev, NULL, NULL);
+ err = netdev_master_upper_dev_link(dev, real_dev, NULL, NULL, extack);
if (err)
goto err2;
diff --git a/drivers/net/hyperv/netvsc_drv.c b/drivers/net/hyperv/netvsc_drv.c
index f300ae61c6c6..dfb986421ec6 100644
--- a/drivers/net/hyperv/netvsc_drv.c
+++ b/drivers/net/hyperv/netvsc_drv.c
@@ -1748,7 +1748,7 @@ static int netvsc_vf_join(struct net_device *vf_netdev,
goto rx_handler_failed;
}
- ret = netdev_upper_dev_link(vf_netdev, ndev);
+ ret = netdev_upper_dev_link(vf_netdev, ndev, NULL);
if (ret != 0) {
netdev_err(vf_netdev,
"can not set master device %s (err = %d)\n",
diff --git a/drivers/net/ipvlan/ipvlan_main.c b/drivers/net/ipvlan/ipvlan_main.c
index c74893c1e620..57c3856bab05 100644
--- a/drivers/net/ipvlan/ipvlan_main.c
+++ b/drivers/net/ipvlan/ipvlan_main.c
@@ -584,7 +584,7 @@ int ipvlan_link_new(struct net *src_net, struct net_device *dev,
if (err < 0)
goto remove_ida;
- err = netdev_upper_dev_link(phy_dev, dev);
+ err = netdev_upper_dev_link(phy_dev, dev, extack);
if (err) {
goto unregister_netdev;
}
diff --git a/drivers/net/macsec.c b/drivers/net/macsec.c
index 98e4deaa3a6a..ccbe4eaffe4d 100644
--- a/drivers/net/macsec.c
+++ b/drivers/net/macsec.c
@@ -3244,7 +3244,7 @@ static int macsec_newlink(struct net *net, struct net_device *dev,
&macsec_netdev_addr_lock_key,
macsec_get_nest_level(dev));
- err = netdev_upper_dev_link(real_dev, dev);
+ err = netdev_upper_dev_link(real_dev, dev, extack);
if (err < 0)
goto unregister;
diff --git a/drivers/net/macvlan.c b/drivers/net/macvlan.c
index 1ffe77e95d46..858bd66511a2 100644
--- a/drivers/net/macvlan.c
+++ b/drivers/net/macvlan.c
@@ -1344,7 +1344,8 @@ static int macvlan_changelink_sources(struct macvlan_dev *vlan, u32 mode,
}
int macvlan_common_newlink(struct net *src_net, struct net_device *dev,
- struct nlattr *tb[], struct nlattr *data[])
+ struct nlattr *tb[], struct nlattr *data[],
+ struct netlink_ext_ack *extack)
{
struct macvlan_dev *vlan = netdev_priv(dev);
struct macvlan_port *port;
@@ -1433,7 +1434,7 @@ int macvlan_common_newlink(struct net *src_net, struct net_device *dev,
goto destroy_macvlan_port;
dev->priv_flags |= IFF_MACVLAN;
- err = netdev_upper_dev_link(lowerdev, dev);
+ err = netdev_upper_dev_link(lowerdev, dev, extack);
if (err)
goto unregister_netdev;
@@ -1456,7 +1457,7 @@ static int macvlan_newlink(struct net *src_net, struct net_device *dev,
struct nlattr *tb[], struct nlattr *data[],
struct netlink_ext_ack *extack)
{
- return macvlan_common_newlink(src_net, dev, tb, data);
+ return macvlan_common_newlink(src_net, dev, tb, data, extack);
}
void macvlan_dellink(struct net_device *dev, struct list_head *head)
diff --git a/drivers/net/macvtap.c b/drivers/net/macvtap.c
index c2d0ea2fb019..f62aea2fcfa9 100644
--- a/drivers/net/macvtap.c
+++ b/drivers/net/macvtap.c
@@ -105,7 +105,7 @@ static int macvtap_newlink(struct net *src_net, struct net_device *dev,
/* Don't put anything that may fail after macvlan_common_newlink
* because we can't undo what it does.
*/
- err = macvlan_common_newlink(src_net, dev, tb, data);
+ err = macvlan_common_newlink(src_net, dev, tb, data, extack);
if (err) {
netdev_rx_handler_unregister(dev);
return err;
diff --git a/drivers/net/team/team.c b/drivers/net/team/team.c
index 4359d45aa131..a468439969df 100644
--- a/drivers/net/team/team.c
+++ b/drivers/net/team/team.c
@@ -1112,7 +1112,7 @@ static int team_upper_dev_link(struct team *team, struct team_port *port)
lag_upper_info.tx_type = team->mode->lag_tx_type;
err = netdev_master_upper_dev_link(port->dev, team->dev, NULL,
- &lag_upper_info);
+ &lag_upper_info, NULL);
if (err)
return err;
port->dev->priv_flags |= IFF_TEAM_PORT;
diff --git a/drivers/net/usb/qmi_wwan.c b/drivers/net/usb/qmi_wwan.c
index 8c3733608271..db7279d5b250 100644
--- a/drivers/net/usb/qmi_wwan.c
+++ b/drivers/net/usb/qmi_wwan.c
@@ -221,7 +221,7 @@ static int qmimux_register_device(struct net_device *real_dev, u8 mux_id)
/* Account for reference in struct qmimux_priv_priv */
dev_hold(real_dev);
- err = netdev_upper_dev_link(real_dev, new_dev);
+ err = netdev_upper_dev_link(real_dev, new_dev, NULL);
if (err)
goto out_unregister_netdev;
diff --git a/drivers/net/vrf.c b/drivers/net/vrf.c
index 4a082ef53533..77d0655a0250 100644
--- a/drivers/net/vrf.c
+++ b/drivers/net/vrf.c
@@ -764,7 +764,8 @@ static void cycle_netdev(struct net_device *dev)
}
}
-static int do_vrf_add_slave(struct net_device *dev, struct net_device *port_dev)
+static int do_vrf_add_slave(struct net_device *dev, struct net_device *port_dev,
+ struct netlink_ext_ack *extack)
{
int ret;
@@ -775,7 +776,7 @@ static int do_vrf_add_slave(struct net_device *dev, struct net_device *port_dev)
return -EOPNOTSUPP;
port_dev->priv_flags |= IFF_L3MDEV_SLAVE;
- ret = netdev_master_upper_dev_link(port_dev, dev, NULL, NULL);
+ ret = netdev_master_upper_dev_link(port_dev, dev, NULL, NULL, extack);
if (ret < 0)
goto err;
@@ -794,7 +795,7 @@ static int vrf_add_slave(struct net_device *dev, struct net_device *port_dev,
if (netif_is_l3_master(port_dev) || netif_is_l3_slave(port_dev))
return -EINVAL;
- return do_vrf_add_slave(dev, port_dev);
+ return do_vrf_add_slave(dev, port_dev, extack);
}
/* inverse of do_vrf_add_slave */
diff --git a/include/linux/if_macvlan.h b/include/linux/if_macvlan.h
index c9ec1343d187..10e319f41fb1 100644
--- a/include/linux/if_macvlan.h
+++ b/include/linux/if_macvlan.h
@@ -72,7 +72,8 @@ static inline void macvlan_count_rx(const struct macvlan_dev *vlan,
extern void macvlan_common_setup(struct net_device *dev);
extern int macvlan_common_newlink(struct net *src_net, struct net_device *dev,
- struct nlattr *tb[], struct nlattr *data[]);
+ struct nlattr *tb[], struct nlattr *data[],
+ struct netlink_ext_ack *extack);
extern void macvlan_count_rx(const struct macvlan_dev *vlan,
unsigned int len, bool success,
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 368a5064a487..31bb3010c69b 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -3919,10 +3919,12 @@ void *netdev_adjacent_get_private(struct list_head *adj_list);
void *netdev_lower_get_first_private_rcu(struct net_device *dev);
struct net_device *netdev_master_upper_dev_get(struct net_device *dev);
struct net_device *netdev_master_upper_dev_get_rcu(struct net_device *dev);
-int netdev_upper_dev_link(struct net_device *dev, struct net_device *upper_dev);
+int netdev_upper_dev_link(struct net_device *dev, struct net_device *upper_dev,
+ struct netlink_ext_ack *extack);
int netdev_master_upper_dev_link(struct net_device *dev,
struct net_device *upper_dev,
- void *upper_priv, void *upper_info);
+ void *upper_priv, void *upper_info,
+ struct netlink_ext_ack *extack);
void netdev_upper_dev_unlink(struct net_device *dev,
struct net_device *upper_dev);
void netdev_adjacent_rename_links(struct net_device *dev, char *oldname);
diff --git a/net/8021q/vlan.c b/net/8021q/vlan.c
index 9649579b5b9f..71c3e045505b 100644
--- a/net/8021q/vlan.c
+++ b/net/8021q/vlan.c
@@ -138,7 +138,7 @@ int vlan_check_real_dev(struct net_device *real_dev,
return 0;
}
-int register_vlan_dev(struct net_device *dev)
+int register_vlan_dev(struct net_device *dev, struct netlink_ext_ack *extack)
{
struct vlan_dev_priv *vlan = vlan_dev_priv(dev);
struct net_device *real_dev = vlan->real_dev;
@@ -174,7 +174,7 @@ int register_vlan_dev(struct net_device *dev)
if (err < 0)
goto out_uninit_mvrp;
- err = netdev_upper_dev_link(real_dev, dev);
+ err = netdev_upper_dev_link(real_dev, dev, extack);
if (err)
goto out_unregister_netdev;
@@ -270,7 +270,7 @@ static int register_vlan_device(struct net_device *real_dev, u16 vlan_id)
vlan->flags = VLAN_FLAG_REORDER_HDR;
new_dev->rtnl_link_ops = &vlan_link_ops;
- err = register_vlan_dev(new_dev);
+ err = register_vlan_dev(new_dev, NULL);
if (err < 0)
goto out_free_newdev;
diff --git a/net/8021q/vlan.h b/net/8021q/vlan.h
index df8bd65dd370..94f8eed9f9b3 100644
--- a/net/8021q/vlan.h
+++ b/net/8021q/vlan.h
@@ -107,7 +107,7 @@ void vlan_dev_get_realdev_name(const struct net_device *dev, char *result);
int vlan_check_real_dev(struct net_device *real_dev,
__be16 protocol, u16 vlan_id);
void vlan_setup(struct net_device *dev);
-int register_vlan_dev(struct net_device *dev);
+int register_vlan_dev(struct net_device *dev, struct netlink_ext_ack *extack);
void unregister_vlan_dev(struct net_device *dev, struct list_head *head);
bool vlan_dev_inherit_address(struct net_device *dev,
struct net_device *real_dev);
diff --git a/net/8021q/vlan_netlink.c b/net/8021q/vlan_netlink.c
index 5e831de3103e..6e7c5a6a7930 100644
--- a/net/8021q/vlan_netlink.c
+++ b/net/8021q/vlan_netlink.c
@@ -160,7 +160,7 @@ static int vlan_newlink(struct net *src_net, struct net_device *dev,
if (err < 0)
return err;
- return register_vlan_dev(dev);
+ return register_vlan_dev(dev, extack);
}
static inline size_t vlan_qos_map_size(unsigned int n)
diff --git a/net/batman-adv/hard-interface.c b/net/batman-adv/hard-interface.c
index e348f76ea8c1..f7b413b9297e 100644
--- a/net/batman-adv/hard-interface.c
+++ b/net/batman-adv/hard-interface.c
@@ -738,7 +738,7 @@ int batadv_hardif_enable_interface(struct batadv_hard_iface *hard_iface,
bat_priv = netdev_priv(hard_iface->soft_iface);
ret = netdev_master_upper_dev_link(hard_iface->net_dev,
- soft_iface, NULL, NULL);
+ soft_iface, NULL, NULL, NULL);
if (ret)
goto err_dev;
diff --git a/net/bridge/br_if.c b/net/bridge/br_if.c
index f3aef22931ab..0a3fd727048d 100644
--- a/net/bridge/br_if.c
+++ b/net/bridge/br_if.c
@@ -540,7 +540,7 @@ int br_add_if(struct net_bridge *br, struct net_device *dev)
dev->priv_flags |= IFF_BRIDGE_PORT;
- err = netdev_master_upper_dev_link(dev, br->dev, NULL, NULL);
+ err = netdev_master_upper_dev_link(dev, br->dev, NULL, NULL, NULL);
if (err)
goto err5;
diff --git a/net/core/dev.c b/net/core/dev.c
index dbeeefebfbb7..b417b76ff8fc 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -6276,11 +6276,13 @@ static void __netdev_adjacent_dev_unlink_neighbour(struct net_device *dev,
static int __netdev_upper_dev_link(struct net_device *dev,
struct net_device *upper_dev, bool master,
- void *upper_priv, void *upper_info)
+ void *upper_priv, void *upper_info,
+ struct netlink_ext_ack *extack)
{
struct netdev_notifier_changeupper_info changeupper_info = {
.info = {
.dev = dev,
+ .extack = extack,
},
.upper_dev = upper_dev,
.master = master,
@@ -6340,9 +6342,11 @@ static int __netdev_upper_dev_link(struct net_device *dev,
* returns zero.
*/
int netdev_upper_dev_link(struct net_device *dev,
- struct net_device *upper_dev)
+ struct net_device *upper_dev,
+ struct netlink_ext_ack *extack)
{
- return __netdev_upper_dev_link(dev, upper_dev, false, NULL, NULL);
+ return __netdev_upper_dev_link(dev, upper_dev, false,
+ NULL, NULL, extack);
}
EXPORT_SYMBOL(netdev_upper_dev_link);
@@ -6361,10 +6365,11 @@ EXPORT_SYMBOL(netdev_upper_dev_link);
*/
int netdev_master_upper_dev_link(struct net_device *dev,
struct net_device *upper_dev,
- void *upper_priv, void *upper_info)
+ void *upper_priv, void *upper_info,
+ struct netlink_ext_ack *extack)
{
return __netdev_upper_dev_link(dev, upper_dev, true,
- upper_priv, upper_info);
+ upper_priv, upper_info, extack);
}
EXPORT_SYMBOL(netdev_master_upper_dev_link);
diff --git a/net/openvswitch/vport-netdev.c b/net/openvswitch/vport-netdev.c
index 0389398fa4ab..2e5e7a41d8ef 100644
--- a/net/openvswitch/vport-netdev.c
+++ b/net/openvswitch/vport-netdev.c
@@ -108,7 +108,8 @@ struct vport *ovs_netdev_link(struct vport *vport, const char *name)
rtnl_lock();
err = netdev_master_upper_dev_link(vport->dev,
- get_dpdev(vport->dp), NULL, NULL);
+ get_dpdev(vport->dp),
+ NULL, NULL, NULL);
if (err)
goto error_unlock;
--
2.1.4
^ permalink raw reply related [flat|nested] 17+ messages in thread* [PATCH net-next 4/7] net: vrf: Add extack messages for enslave errors
2017-10-04 4:58 [PATCH net-next 0/7] net: Plumb extack error reporting to enslavements David Ahern
` (2 preceding siblings ...)
2017-10-04 4:58 ` [PATCH net-next 3/7] net: Add extack to upper device linking David Ahern
@ 2017-10-04 4:58 ` David Ahern
2017-10-04 4:58 ` [PATCH net-next 5/7] net: bonding: Add extack messages for some enslave failures David Ahern
` (2 subsequent siblings)
6 siblings, 0 replies; 17+ messages in thread
From: David Ahern @ 2017-10-04 4:58 UTC (permalink / raw)
To: netdev; +Cc: j.vosburgh, vfalico, andy, jiri, idosch, davem, bridge,
David Ahern
Signed-off-by: David Ahern <dsahern@gmail.com>
---
drivers/net/vrf.c | 13 +++++++++++--
1 file changed, 11 insertions(+), 2 deletions(-)
diff --git a/drivers/net/vrf.c b/drivers/net/vrf.c
index 77d0655a0250..0b54f553228e 100644
--- a/drivers/net/vrf.c
+++ b/drivers/net/vrf.c
@@ -772,8 +772,11 @@ static int do_vrf_add_slave(struct net_device *dev, struct net_device *port_dev,
/* do not allow loopback device to be enslaved to a VRF.
* The vrf device acts as the loopback for the vrf.
*/
- if (port_dev == dev_net(dev)->loopback_dev)
+ if (port_dev == dev_net(dev)->loopback_dev) {
+ NL_SET_ERR_MSG(extack,
+ "Can not enslave loopback device to a VRF");
return -EOPNOTSUPP;
+ }
port_dev->priv_flags |= IFF_L3MDEV_SLAVE;
ret = netdev_master_upper_dev_link(port_dev, dev, NULL, NULL, extack);
@@ -792,7 +795,13 @@ static int do_vrf_add_slave(struct net_device *dev, struct net_device *port_dev,
static int vrf_add_slave(struct net_device *dev, struct net_device *port_dev,
struct netlink_ext_ack *extack)
{
- if (netif_is_l3_master(port_dev) || netif_is_l3_slave(port_dev))
+ if (netif_is_l3_master(port_dev)) {
+ NL_SET_ERR_MSG(extack,
+ "Can not enslave an L3 master device to a VRF");
+ return -EINVAL;
+ }
+
+ if (netif_is_l3_slave(port_dev))
return -EINVAL;
return do_vrf_add_slave(dev, port_dev, extack);
--
2.1.4
^ permalink raw reply related [flat|nested] 17+ messages in thread* [PATCH net-next 5/7] net: bonding: Add extack messages for some enslave failures
2017-10-04 4:58 [PATCH net-next 0/7] net: Plumb extack error reporting to enslavements David Ahern
` (3 preceding siblings ...)
2017-10-04 4:58 ` [PATCH net-next 4/7] net: vrf: Add extack messages for enslave errors David Ahern
@ 2017-10-04 4:58 ` David Ahern
2017-10-04 6:38 ` Jiri Pirko
2017-10-04 4:58 ` [PATCH net-next 6/7] net: bridge: Pass extack to down to netdev_master_upper_dev_link David Ahern
2017-10-04 4:58 ` [PATCH net-next 7/7] mlxsw: spectrum: Add extack messages for enslave failures David Ahern
6 siblings, 1 reply; 17+ messages in thread
From: David Ahern @ 2017-10-04 4:58 UTC (permalink / raw)
To: netdev; +Cc: j.vosburgh, vfalico, andy, jiri, idosch, davem, bridge,
David Ahern
A number of bond_enslave errors are logged using the netdev_err API.
Return those messages to userspace via the extack facility.
Signed-off-by: David Ahern <dsahern@gmail.com>
---
drivers/net/bonding/bond_main.c | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index bc92307c2082..6688dc9154e0 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -1348,12 +1348,15 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev,
/* already in-use? */
if (netdev_is_rx_handler_busy(slave_dev)) {
+ NL_SET_ERR_MSG(extack,
+ "Device is in use and cannot be enslaved");
netdev_err(bond_dev,
"Error: Device is in use and cannot be enslaved\n");
return -EBUSY;
}
if (bond_dev == slave_dev) {
+ NL_SET_ERR_MSG(extack, "Cannot enslave bond to itself.");
netdev_err(bond_dev, "cannot enslave bond to itself.\n");
return -EPERM;
}
@@ -1364,6 +1367,8 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev,
netdev_dbg(bond_dev, "%s is NETIF_F_VLAN_CHALLENGED\n",
slave_dev->name);
if (vlan_uses_dev(bond_dev)) {
+ NL_SET_ERR_MSG(extack,
+ "Can not enslave VLAN challenged device to VLAN enabled bond");
netdev_err(bond_dev, "Error: cannot enslave VLAN challenged slave %s on VLAN enabled bond %s\n",
slave_dev->name, bond_dev->name);
return -EPERM;
@@ -1383,6 +1388,7 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev,
* enslaving it; the old ifenslave will not.
*/
if (slave_dev->flags & IFF_UP) {
+ NL_SET_ERR_MSG(extack, "Device can not be enslaved while up");
netdev_err(bond_dev, "%s is up - this may be due to an out of date ifenslave\n",
slave_dev->name);
return -EPERM;
@@ -1423,6 +1429,8 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev,
bond_dev);
}
} else if (bond_dev->type != slave_dev->type) {
+ NL_SET_ERR_MSG(extack,
+ "Device type is different from other slaves");
netdev_err(bond_dev, "%s ether type (%d) is different from other slaves (%d), can not enslave it\n",
slave_dev->name, slave_dev->type, bond_dev->type);
return -EINVAL;
@@ -1430,6 +1438,8 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev,
if (slave_dev->type == ARPHRD_INFINIBAND &&
BOND_MODE(bond) != BOND_MODE_ACTIVEBACKUP) {
+ NL_SET_ERR_MSG(extack,
+ "Only active-backup mode is supported for infiniband slaves");
netdev_warn(bond_dev, "Type (%d) supports only active-backup mode\n",
slave_dev->type);
res = -EOPNOTSUPP;
@@ -1445,6 +1455,8 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev,
bond->params.fail_over_mac = BOND_FOM_ACTIVE;
netdev_warn(bond_dev, "Setting fail_over_mac to active for active-backup mode\n");
} else {
+ NL_SET_ERR_MSG(extack,
+ "Slave device does not support setting the MAC address, but fail_over_mac is not set to active");
netdev_err(bond_dev, "The slave device specified does not support setting the MAC address, but fail_over_mac is not set to active\n");
res = -EOPNOTSUPP;
goto err_undo_flags;
--
2.1.4
^ permalink raw reply related [flat|nested] 17+ messages in thread* Re: [PATCH net-next 5/7] net: bonding: Add extack messages for some enslave failures
2017-10-04 4:58 ` [PATCH net-next 5/7] net: bonding: Add extack messages for some enslave failures David Ahern
@ 2017-10-04 6:38 ` Jiri Pirko
2017-10-04 15:35 ` David Ahern
0 siblings, 1 reply; 17+ messages in thread
From: Jiri Pirko @ 2017-10-04 6:38 UTC (permalink / raw)
To: David Ahern
Cc: netdev, j.vosburgh, vfalico, andy, jiri, idosch, davem, bridge
Wed, Oct 04, 2017 at 06:58:52AM CEST, dsahern@gmail.com wrote:
>A number of bond_enslave errors are logged using the netdev_err API.
>Return those messages to userspace via the extack facility.
>
>Signed-off-by: David Ahern <dsahern@gmail.com>
>---
> drivers/net/bonding/bond_main.c | 12 ++++++++++++
> 1 file changed, 12 insertions(+)
>
>diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
>index bc92307c2082..6688dc9154e0 100644
>--- a/drivers/net/bonding/bond_main.c
>+++ b/drivers/net/bonding/bond_main.c
>@@ -1348,12 +1348,15 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev,
>
> /* already in-use? */
> if (netdev_is_rx_handler_busy(slave_dev)) {
>+ NL_SET_ERR_MSG(extack,
>+ "Device is in use and cannot be enslaved");
Please don't do this kind of wrapping. Just let the string be on the
same line.
^ permalink raw reply [flat|nested] 17+ messages in thread* Re: [PATCH net-next 5/7] net: bonding: Add extack messages for some enslave failures
2017-10-04 6:38 ` Jiri Pirko
@ 2017-10-04 15:35 ` David Ahern
2017-10-04 18:04 ` Jiri Pirko
0 siblings, 1 reply; 17+ messages in thread
From: David Ahern @ 2017-10-04 15:35 UTC (permalink / raw)
To: Jiri Pirko; +Cc: netdev, j.vosburgh, vfalico, andy, jiri, idosch, davem, bridge
On 10/3/17 11:38 PM, Jiri Pirko wrote:
> Wed, Oct 04, 2017 at 06:58:52AM CEST, dsahern@gmail.com wrote:
>> A number of bond_enslave errors are logged using the netdev_err API.
>> Return those messages to userspace via the extack facility.
>>
>> Signed-off-by: David Ahern <dsahern@gmail.com>
>> ---
>> drivers/net/bonding/bond_main.c | 12 ++++++++++++
>> 1 file changed, 12 insertions(+)
>>
>> diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
>> index bc92307c2082..6688dc9154e0 100644
>> --- a/drivers/net/bonding/bond_main.c
>> +++ b/drivers/net/bonding/bond_main.c
>> @@ -1348,12 +1348,15 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev,
>>
>> /* already in-use? */
>> if (netdev_is_rx_handler_busy(slave_dev)) {
>> + NL_SET_ERR_MSG(extack,
>> + "Device is in use and cannot be enslaved");
>
> Please don't do this kind of wrapping. Just let the string be on the
> same line.
>
Ok, I will do that for bonding only since it is the existing style.
^ permalink raw reply [flat|nested] 17+ messages in thread* Re: [PATCH net-next 5/7] net: bonding: Add extack messages for some enslave failures
2017-10-04 15:35 ` David Ahern
@ 2017-10-04 18:04 ` Jiri Pirko
2017-10-04 18:06 ` David Ahern
0 siblings, 1 reply; 17+ messages in thread
From: Jiri Pirko @ 2017-10-04 18:04 UTC (permalink / raw)
To: David Ahern
Cc: netdev, j.vosburgh, vfalico, andy, jiri, idosch, davem, bridge
Wed, Oct 04, 2017 at 05:35:46PM CEST, dsahern@gmail.com wrote:
>On 10/3/17 11:38 PM, Jiri Pirko wrote:
>> Wed, Oct 04, 2017 at 06:58:52AM CEST, dsahern@gmail.com wrote:
>>> A number of bond_enslave errors are logged using the netdev_err API.
>>> Return those messages to userspace via the extack facility.
>>>
>>> Signed-off-by: David Ahern <dsahern@gmail.com>
>>> ---
>>> drivers/net/bonding/bond_main.c | 12 ++++++++++++
>>> 1 file changed, 12 insertions(+)
>>>
>>> diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
>>> index bc92307c2082..6688dc9154e0 100644
>>> --- a/drivers/net/bonding/bond_main.c
>>> +++ b/drivers/net/bonding/bond_main.c
>>> @@ -1348,12 +1348,15 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev,
>>>
>>> /* already in-use? */
>>> if (netdev_is_rx_handler_busy(slave_dev)) {
>>> + NL_SET_ERR_MSG(extack,
>>> + "Device is in use and cannot be enslaved");
>>
>> Please don't do this kind of wrapping. Just let the string be on the
>> same line.
>>
>
>Ok, I will do that for bonding only since it is the existing style.
I don't believe you need to do this wrap for any code. Just don't wrap.
General code stype says no wrap for strings :)
^ permalink raw reply [flat|nested] 17+ messages in thread* Re: [PATCH net-next 5/7] net: bonding: Add extack messages for some enslave failures
2017-10-04 18:04 ` Jiri Pirko
@ 2017-10-04 18:06 ` David Ahern
2017-10-04 18:39 ` Jiri Pirko
0 siblings, 1 reply; 17+ messages in thread
From: David Ahern @ 2017-10-04 18:06 UTC (permalink / raw)
To: Jiri Pirko; +Cc: netdev, j.vosburgh, vfalico, andy, jiri, idosch, davem, bridge
On 10/4/17 11:04 AM, Jiri Pirko wrote:
> Wed, Oct 04, 2017 at 05:35:46PM CEST, dsahern@gmail.com wrote:
>> On 10/3/17 11:38 PM, Jiri Pirko wrote:
>>> Wed, Oct 04, 2017 at 06:58:52AM CEST, dsahern@gmail.com wrote:
>>>> A number of bond_enslave errors are logged using the netdev_err API.
>>>> Return those messages to userspace via the extack facility.
>>>>
>>>> Signed-off-by: David Ahern <dsahern@gmail.com>
>>>> ---
>>>> drivers/net/bonding/bond_main.c | 12 ++++++++++++
>>>> 1 file changed, 12 insertions(+)
>>>>
>>>> diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
>>>> index bc92307c2082..6688dc9154e0 100644
>>>> --- a/drivers/net/bonding/bond_main.c
>>>> +++ b/drivers/net/bonding/bond_main.c
>>>> @@ -1348,12 +1348,15 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev,
>>>>
>>>> /* already in-use? */
>>>> if (netdev_is_rx_handler_busy(slave_dev)) {
>>>> + NL_SET_ERR_MSG(extack,
>>>> + "Device is in use and cannot be enslaved");
>>>
>>> Please don't do this kind of wrapping. Just let the string be on the
>>> same line.
>>>
>>
>> Ok, I will do that for bonding only since it is the existing style.
>
> I don't believe you need to do this wrap for any code. Just don't wrap.
> General code stype says no wrap for strings :)
>
I do not break / wrap strings; they need to be searchable. I assumed you
meant this is preferred for bonding:
NL_SET_ERR_MSG(extack, "Device is in use and cannot be enslaved");
over what I have done:
NL_SET_ERR_MSG(extack,
"Device is in use and cannot be enslaved");
^ permalink raw reply [flat|nested] 17+ messages in thread* Re: [PATCH net-next 5/7] net: bonding: Add extack messages for some enslave failures
2017-10-04 18:06 ` David Ahern
@ 2017-10-04 18:39 ` Jiri Pirko
0 siblings, 0 replies; 17+ messages in thread
From: Jiri Pirko @ 2017-10-04 18:39 UTC (permalink / raw)
To: David Ahern
Cc: netdev, j.vosburgh, vfalico, andy, jiri, idosch, davem, bridge
Wed, Oct 04, 2017 at 08:06:16PM CEST, dsahern@gmail.com wrote:
>On 10/4/17 11:04 AM, Jiri Pirko wrote:
>> Wed, Oct 04, 2017 at 05:35:46PM CEST, dsahern@gmail.com wrote:
>>> On 10/3/17 11:38 PM, Jiri Pirko wrote:
>>>> Wed, Oct 04, 2017 at 06:58:52AM CEST, dsahern@gmail.com wrote:
>>>>> A number of bond_enslave errors are logged using the netdev_err API.
>>>>> Return those messages to userspace via the extack facility.
>>>>>
>>>>> Signed-off-by: David Ahern <dsahern@gmail.com>
>>>>> ---
>>>>> drivers/net/bonding/bond_main.c | 12 ++++++++++++
>>>>> 1 file changed, 12 insertions(+)
>>>>>
>>>>> diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
>>>>> index bc92307c2082..6688dc9154e0 100644
>>>>> --- a/drivers/net/bonding/bond_main.c
>>>>> +++ b/drivers/net/bonding/bond_main.c
>>>>> @@ -1348,12 +1348,15 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev,
>>>>>
>>>>> /* already in-use? */
>>>>> if (netdev_is_rx_handler_busy(slave_dev)) {
>>>>> + NL_SET_ERR_MSG(extack,
>>>>> + "Device is in use and cannot be enslaved");
>>>>
>>>> Please don't do this kind of wrapping. Just let the string be on the
>>>> same line.
>>>>
>>>
>>> Ok, I will do that for bonding only since it is the existing style.
>>
>> I don't believe you need to do this wrap for any code. Just don't wrap.
>> General code stype says no wrap for strings :)
>>
>
>I do not break / wrap strings; they need to be searchable. I assumed you
>meant this is preferred for bonding:
>
>NL_SET_ERR_MSG(extack, "Device is in use and cannot be enslaved");
Yep.
>
>
>over what I have done:
>
>NL_SET_ERR_MSG(extack,
> "Device is in use and cannot be enslaved");
^ permalink raw reply [flat|nested] 17+ messages in thread
* [PATCH net-next 6/7] net: bridge: Pass extack to down to netdev_master_upper_dev_link
2017-10-04 4:58 [PATCH net-next 0/7] net: Plumb extack error reporting to enslavements David Ahern
` (4 preceding siblings ...)
2017-10-04 4:58 ` [PATCH net-next 5/7] net: bonding: Add extack messages for some enslave failures David Ahern
@ 2017-10-04 4:58 ` David Ahern
2017-10-04 15:13 ` Stephen Hemminger
2017-10-04 4:58 ` [PATCH net-next 7/7] mlxsw: spectrum: Add extack messages for enslave failures David Ahern
6 siblings, 1 reply; 17+ messages in thread
From: David Ahern @ 2017-10-04 4:58 UTC (permalink / raw)
To: netdev; +Cc: j.vosburgh, vfalico, andy, jiri, idosch, davem, bridge,
David Ahern
Pass extack arg to br_add_if. Add messages for a couple of failures
and pass arg to netdev_master_upper_dev_link.
Signed-off-by: David Ahern <dsahern@gmail.com>
---
net/bridge/br_device.c | 2 +-
net/bridge/br_if.c | 15 +++++++++++----
net/bridge/br_ioctl.c | 2 +-
net/bridge/br_private.h | 3 ++-
4 files changed, 15 insertions(+), 7 deletions(-)
diff --git a/net/bridge/br_device.c b/net/bridge/br_device.c
index cb0131d70ab1..7acb77c9bd65 100644
--- a/net/bridge/br_device.c
+++ b/net/bridge/br_device.c
@@ -326,7 +326,7 @@ static int br_add_slave(struct net_device *dev, struct net_device *slave_dev,
{
struct net_bridge *br = netdev_priv(dev);
- return br_add_if(br, slave_dev);
+ return br_add_if(br, slave_dev, extack);
}
static int br_del_slave(struct net_device *dev, struct net_device *slave_dev)
diff --git a/net/bridge/br_if.c b/net/bridge/br_if.c
index 0a3fd727048d..59a74a414e20 100644
--- a/net/bridge/br_if.c
+++ b/net/bridge/br_if.c
@@ -480,7 +480,8 @@ netdev_features_t br_features_recompute(struct net_bridge *br,
}
/* called with RTNL */
-int br_add_if(struct net_bridge *br, struct net_device *dev)
+int br_add_if(struct net_bridge *br, struct net_device *dev,
+ struct netlink_ext_ack *extack)
{
struct net_bridge_port *p;
int err = 0;
@@ -500,16 +501,22 @@ int br_add_if(struct net_bridge *br, struct net_device *dev)
return -EINVAL;
/* No bridging of bridges */
- if (dev->netdev_ops->ndo_start_xmit == br_dev_xmit)
+ if (dev->netdev_ops->ndo_start_xmit == br_dev_xmit) {
+ NL_SET_ERR_MSG(extack,
+ "Can not enslave a bridge to a bridge");
return -ELOOP;
+ }
/* Device is already being bridged */
if (br_port_exists(dev))
return -EBUSY;
/* No bridging devices that dislike that (e.g. wireless) */
- if (dev->priv_flags & IFF_DONT_BRIDGE)
+ if (dev->priv_flags & IFF_DONT_BRIDGE) {
+ NL_SET_ERR_MSG(extack,
+ "Device does not allow enslaving to a bridge");
return -EOPNOTSUPP;
+ }
p = new_nbp(br, dev);
if (IS_ERR(p))
@@ -540,7 +547,7 @@ int br_add_if(struct net_bridge *br, struct net_device *dev)
dev->priv_flags |= IFF_BRIDGE_PORT;
- err = netdev_master_upper_dev_link(dev, br->dev, NULL, NULL, NULL);
+ err = netdev_master_upper_dev_link(dev, br->dev, NULL, NULL, extack);
if (err)
goto err5;
diff --git a/net/bridge/br_ioctl.c b/net/bridge/br_ioctl.c
index 66cd98772051..8f29103935a3 100644
--- a/net/bridge/br_ioctl.c
+++ b/net/bridge/br_ioctl.c
@@ -98,7 +98,7 @@ static int add_del_if(struct net_bridge *br, int ifindex, int isadd)
return -EINVAL;
if (isadd)
- ret = br_add_if(br, dev);
+ ret = br_add_if(br, dev, NULL);
else
ret = br_del_if(br, dev);
diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h
index 020c709a017f..ab4df24f7bba 100644
--- a/net/bridge/br_private.h
+++ b/net/bridge/br_private.h
@@ -566,7 +566,8 @@ void br_flood(struct net_bridge *br, struct sk_buff *skb,
void br_port_carrier_check(struct net_bridge_port *p);
int br_add_bridge(struct net *net, const char *name);
int br_del_bridge(struct net *net, const char *name);
-int br_add_if(struct net_bridge *br, struct net_device *dev);
+int br_add_if(struct net_bridge *br, struct net_device *dev,
+ struct netlink_ext_ack *extack);
int br_del_if(struct net_bridge *br, struct net_device *dev);
int br_min_mtu(const struct net_bridge *br);
netdev_features_t br_features_recompute(struct net_bridge *br,
--
2.1.4
^ permalink raw reply related [flat|nested] 17+ messages in thread* Re: [PATCH net-next 6/7] net: bridge: Pass extack to down to netdev_master_upper_dev_link
2017-10-04 4:58 ` [PATCH net-next 6/7] net: bridge: Pass extack to down to netdev_master_upper_dev_link David Ahern
@ 2017-10-04 15:13 ` Stephen Hemminger
2017-10-04 16:16 ` David Ahern
0 siblings, 1 reply; 17+ messages in thread
From: Stephen Hemminger @ 2017-10-04 15:13 UTC (permalink / raw)
To: David Ahern
Cc: netdev, j.vosburgh, vfalico, andy, jiri, idosch, davem, bridge
On Tue, 3 Oct 2017 21:58:53 -0700
David Ahern <dsahern@gmail.com> wrote:
> Pass extack arg to br_add_if. Add messages for a couple of failures
> and pass arg to netdev_master_upper_dev_link.
>
> Signed-off-by: David Ahern <dsahern@gmail.com>
This looks good. You might want to pass the netlink_ext_ack down as
an immutable pointer (const).
Acked-by: Stephen Hemminger <stephen@networkplumber.org>
^ permalink raw reply [flat|nested] 17+ messages in thread
* Re: [PATCH net-next 6/7] net: bridge: Pass extack to down to netdev_master_upper_dev_link
2017-10-04 15:13 ` Stephen Hemminger
@ 2017-10-04 16:16 ` David Ahern
0 siblings, 0 replies; 17+ messages in thread
From: David Ahern @ 2017-10-04 16:16 UTC (permalink / raw)
To: Stephen Hemminger
Cc: netdev, j.vosburgh, vfalico, andy, jiri, idosch, davem, bridge
On 10/4/17 8:13 AM, Stephen Hemminger wrote:
> On Tue, 3 Oct 2017 21:58:53 -0700
> David Ahern <dsahern@gmail.com> wrote:
>
>> Pass extack arg to br_add_if. Add messages for a couple of failures
>> and pass arg to netdev_master_upper_dev_link.
>>
>> Signed-off-by: David Ahern <dsahern@gmail.com>
>
> This looks good. You might want to pass the netlink_ext_ack down as
> an immutable pointer (const).
Can't mark extack as const. The NL_SET_ERR_MSG sets _msg to the passed
in string.
>
> Acked-by: Stephen Hemminger <stephen@networkplumber.org>
>
^ permalink raw reply [flat|nested] 17+ messages in thread
* [PATCH net-next 7/7] mlxsw: spectrum: Add extack messages for enslave failures
2017-10-04 4:58 [PATCH net-next 0/7] net: Plumb extack error reporting to enslavements David Ahern
` (5 preceding siblings ...)
2017-10-04 4:58 ` [PATCH net-next 6/7] net: bridge: Pass extack to down to netdev_master_upper_dev_link David Ahern
@ 2017-10-04 4:58 ` David Ahern
2017-10-04 13:24 ` Ido Schimmel
6 siblings, 1 reply; 17+ messages in thread
From: David Ahern @ 2017-10-04 4:58 UTC (permalink / raw)
To: netdev; +Cc: j.vosburgh, vfalico, andy, jiri, idosch, davem, bridge,
David Ahern
mlxsw fails device enslavement for a number of reasons. Use the extack
facility to return an error message to the user stating why the enslave
is failing.
Messages are prefixed with "spectrum" so users know it is a constraint
imposed by the hardware driver. For example:
$ ip li add br0.11 link br0 type vlan id 11
$ ip li set swp11 master br0
Error: spectrum: Enslaving a port to a device that already has an upper device is not supported.
Signed-off-by: David Ahern <dsahern@gmail.com>
---
drivers/net/ethernet/mellanox/mlxsw/spectrum.c | 46 ++++++++++++++++++++------
1 file changed, 36 insertions(+), 10 deletions(-)
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
index 3adf237c951a..a6cc00e4e543 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
@@ -4019,14 +4019,20 @@ static int mlxsw_sp_lag_index_get(struct mlxsw_sp *mlxsw_sp,
static bool
mlxsw_sp_master_lag_check(struct mlxsw_sp *mlxsw_sp,
struct net_device *lag_dev,
- struct netdev_lag_upper_info *lag_upper_info)
+ struct netdev_lag_upper_info *lag_upper_info,
+ struct netlink_ext_ack *extack)
{
u16 lag_id;
- if (mlxsw_sp_lag_index_get(mlxsw_sp, lag_dev, &lag_id) != 0)
+ if (mlxsw_sp_lag_index_get(mlxsw_sp, lag_dev, &lag_id) != 0) {
+ NL_SET_ERR_MSG(extack, "spectrum: Unknown LAG device");
return false;
- if (lag_upper_info->tx_type != NETDEV_LAG_TX_TYPE_HASH)
+ }
+ if (lag_upper_info->tx_type != NETDEV_LAG_TX_TYPE_HASH) {
+ NL_SET_ERR_MSG(extack,
+ "spectrum: LAG device using unsupported Tx type");
return false;
+ }
return true;
}
@@ -4231,6 +4237,7 @@ static int mlxsw_sp_netdevice_port_upper_event(struct net_device *lower_dev,
{
struct netdev_notifier_changeupper_info *info;
struct mlxsw_sp_port *mlxsw_sp_port;
+ struct netlink_ext_ack *extack;
struct net_device *upper_dev;
struct mlxsw_sp *mlxsw_sp;
int err = 0;
@@ -4238,6 +4245,7 @@ static int mlxsw_sp_netdevice_port_upper_event(struct net_device *lower_dev,
mlxsw_sp_port = netdev_priv(dev);
mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
info = ptr;
+ extack = netdev_notifier_info_to_extack(&info->info);
switch (event) {
case NETDEV_PRECHANGEUPPER:
@@ -4245,25 +4253,43 @@ static int mlxsw_sp_netdevice_port_upper_event(struct net_device *lower_dev,
if (!is_vlan_dev(upper_dev) &&
!netif_is_lag_master(upper_dev) &&
!netif_is_bridge_master(upper_dev) &&
- !netif_is_ovs_master(upper_dev))
+ !netif_is_ovs_master(upper_dev)) {
+ NL_SET_ERR_MSG(extack,
+ "spectrum: Unknown upper device type");
return -EINVAL;
+ }
if (!info->linking)
break;
- if (netdev_has_any_upper_dev(upper_dev))
+ if (netdev_has_any_upper_dev(upper_dev)) {
+ NL_SET_ERR_MSG(extack,
+ "spectrum: Enslaving a port to a device that already has an upper device is not supported");
return -EINVAL;
+ }
if (netif_is_lag_master(upper_dev) &&
!mlxsw_sp_master_lag_check(mlxsw_sp, upper_dev,
- info->upper_info))
+ info->upper_info, extack))
return -EINVAL;
- if (netif_is_lag_master(upper_dev) && vlan_uses_dev(dev))
+ if (netif_is_lag_master(upper_dev) && vlan_uses_dev(dev)) {
+ NL_SET_ERR_MSG(extack,
+ "spectrum: Master device is a LAG master and this device has a VLAN");
return -EINVAL;
+ }
if (netif_is_lag_port(dev) && is_vlan_dev(upper_dev) &&
- !netif_is_lag_master(vlan_dev_real_dev(upper_dev)))
+ !netif_is_lag_master(vlan_dev_real_dev(upper_dev))) {
+ NL_SET_ERR_MSG(extack,
+ "spectrum: Can not put a VLAN on a LAG port");
return -EINVAL;
- if (netif_is_ovs_master(upper_dev) && vlan_uses_dev(dev))
+ }
+ if (netif_is_ovs_master(upper_dev) && vlan_uses_dev(dev)) {
+ NL_SET_ERR_MSG(extack,
+ "spectrum: Master device is an OVS master and this device has a VLAN");
return -EINVAL;
- if (netif_is_ovs_port(dev) && is_vlan_dev(upper_dev))
+ }
+ if (netif_is_ovs_port(dev) && is_vlan_dev(upper_dev)) {
+ NL_SET_ERR_MSG(extack,
+ "spectrum: Can not put a VLAN on an OVS port");
return -EINVAL;
+ }
break;
case NETDEV_CHANGEUPPER:
upper_dev = info->upper_dev;
--
2.1.4
^ permalink raw reply related [flat|nested] 17+ messages in thread* Re: [PATCH net-next 7/7] mlxsw: spectrum: Add extack messages for enslave failures
2017-10-04 4:58 ` [PATCH net-next 7/7] mlxsw: spectrum: Add extack messages for enslave failures David Ahern
@ 2017-10-04 13:24 ` Ido Schimmel
2017-10-04 15:44 ` David Ahern
0 siblings, 1 reply; 17+ messages in thread
From: Ido Schimmel @ 2017-10-04 13:24 UTC (permalink / raw)
To: David Ahern
Cc: netdev, j.vosburgh, vfalico, andy, jiri, idosch, davem, bridge
On Tue, Oct 03, 2017 at 09:58:54PM -0700, David Ahern wrote:
> mlxsw fails device enslavement for a number of reasons. Use the extack
> facility to return an error message to the user stating why the enslave
> is failing.
>
> Messages are prefixed with "spectrum" so users know it is a constraint
> imposed by the hardware driver. For example:
> $ ip li add br0.11 link br0 type vlan id 11
> $ ip li set swp11 master br0
> Error: spectrum: Enslaving a port to a device that already has an upper device is not supported.
>
> Signed-off-by: David Ahern <dsahern@gmail.com>
Great stuff, thanks David!
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Tested-by: Ido Schimmel <idosch@mellanox.com>
See one small nit below, but I would like to patch
mlxsw_sp_netdevice_port_vlan_event() as well, so I can take care of it
then.
> ---
> drivers/net/ethernet/mellanox/mlxsw/spectrum.c | 46 ++++++++++++++++++++------
> 1 file changed, 36 insertions(+), 10 deletions(-)
>
> diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
> index 3adf237c951a..a6cc00e4e543 100644
> --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
> +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
> @@ -4019,14 +4019,20 @@ static int mlxsw_sp_lag_index_get(struct mlxsw_sp *mlxsw_sp,
> static bool
> mlxsw_sp_master_lag_check(struct mlxsw_sp *mlxsw_sp,
> struct net_device *lag_dev,
> - struct netdev_lag_upper_info *lag_upper_info)
> + struct netdev_lag_upper_info *lag_upper_info,
> + struct netlink_ext_ack *extack)
> {
> u16 lag_id;
>
> - if (mlxsw_sp_lag_index_get(mlxsw_sp, lag_dev, &lag_id) != 0)
> + if (mlxsw_sp_lag_index_get(mlxsw_sp, lag_dev, &lag_id) != 0) {
> + NL_SET_ERR_MSG(extack, "spectrum: Unknown LAG device");
A more accurate message would be:
"spectrum: Exceeded number of supported LAG devices"
> return false;
> - if (lag_upper_info->tx_type != NETDEV_LAG_TX_TYPE_HASH)
> + }
> + if (lag_upper_info->tx_type != NETDEV_LAG_TX_TYPE_HASH) {
> + NL_SET_ERR_MSG(extack,
> + "spectrum: LAG device using unsupported Tx type");
> return false;
> + }
> return true;
> }
^ permalink raw reply [flat|nested] 17+ messages in thread* Re: [PATCH net-next 7/7] mlxsw: spectrum: Add extack messages for enslave failures
2017-10-04 13:24 ` Ido Schimmel
@ 2017-10-04 15:44 ` David Ahern
0 siblings, 0 replies; 17+ messages in thread
From: David Ahern @ 2017-10-04 15:44 UTC (permalink / raw)
To: Ido Schimmel
Cc: netdev, j.vosburgh, vfalico, andy, jiri, idosch, davem, bridge
On 10/4/17 6:24 AM, Ido Schimmel wrote:
> On Tue, Oct 03, 2017 at 09:58:54PM -0700, David Ahern wrote:
>> mlxsw fails device enslavement for a number of reasons. Use the extack
>> facility to return an error message to the user stating why the enslave
>> is failing.
>>
>> Messages are prefixed with "spectrum" so users know it is a constraint
>> imposed by the hardware driver. For example:
>> $ ip li add br0.11 link br0 type vlan id 11
>> $ ip li set swp11 master br0
>> Error: spectrum: Enslaving a port to a device that already has an upper device is not supported.
>>
>> Signed-off-by: David Ahern <dsahern@gmail.com>
>
> Great stuff, thanks David!
>
> Reviewed-by: Ido Schimmel <idosch@mellanox.com>
> Tested-by: Ido Schimmel <idosch@mellanox.com>
>
> See one small nit below, but I would like to patch
> mlxsw_sp_netdevice_port_vlan_event() as well, so I can take care of it
> then.
ok. Works for me. I was planning to add more error messages to mlxsw;
happy to concede that to you or someone else. For example a bridge
without vlan filtering:
$ ip li add br1 type bridge
$ ip li set swp20 master br1
RTNETLINK answers: Invalid argument
>
>> ---
>> drivers/net/ethernet/mellanox/mlxsw/spectrum.c | 46 ++++++++++++++++++++------
>> 1 file changed, 36 insertions(+), 10 deletions(-)
>>
>> diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
>> index 3adf237c951a..a6cc00e4e543 100644
>> --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
>> +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
>> @@ -4019,14 +4019,20 @@ static int mlxsw_sp_lag_index_get(struct mlxsw_sp *mlxsw_sp,
>> static bool
>> mlxsw_sp_master_lag_check(struct mlxsw_sp *mlxsw_sp,
>> struct net_device *lag_dev,
>> - struct netdev_lag_upper_info *lag_upper_info)
>> + struct netdev_lag_upper_info *lag_upper_info,
>> + struct netlink_ext_ack *extack)
>> {
>> u16 lag_id;
>>
>> - if (mlxsw_sp_lag_index_get(mlxsw_sp, lag_dev, &lag_id) != 0)
>> + if (mlxsw_sp_lag_index_get(mlxsw_sp, lag_dev, &lag_id) != 0) {
>> + NL_SET_ERR_MSG(extack, "spectrum: Unknown LAG device");
>
> A more accurate message would be:
> "spectrum: Exceeded number of supported LAG devices"
Right. will update.
>
>> return false;
>> - if (lag_upper_info->tx_type != NETDEV_LAG_TX_TYPE_HASH)
>> + }
>> + if (lag_upper_info->tx_type != NETDEV_LAG_TX_TYPE_HASH) {
>> + NL_SET_ERR_MSG(extack,
>> + "spectrum: LAG device using unsupported Tx type");
>> return false;
>> + }
>> return true;
>> }
^ permalink raw reply [flat|nested] 17+ messages in thread