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net: ndo_bridge_setlink: Add extack

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Drivers may not be able to implement a VLAN addition or reconfiguration.
In those cases it's desirable to explain to the user that it was
rejected (and why).

To that end, add extack argument to ndo_bridge_setlink. Adapt all users
to that change.

Following patches will use the new argument in the bridge driver.

Signed-off-by: Petr Machata <petrm@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Petr Machata 2018-12-12 17:02:48 +00:00 committed by David S. Miller
parent 351cbde969
commit 2fd527b72b
9 changed files with 20 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/net/ethernet/broadcom/bnxt/bnxt.c
View File

@ -9618,7 +9618,7 @@ static int bnxt_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq,
} }
static int bnxt_bridge_setlink(struct net_device *dev, struct nlmsghdr *nlh, static int bnxt_bridge_setlink(struct net_device *dev, struct nlmsghdr *nlh,
u16 flags) u16 flags, struct netlink_ext_ack *extack)
{ {
struct bnxt *bp = netdev_priv(dev); struct bnxt *bp = netdev_priv(dev);
struct nlattr *attr, *br_spec; struct nlattr *attr, *br_spec;

2
drivers/net/ethernet/emulex/benet/be_main.c
View File

@ -4955,7 +4955,7 @@ int be_load_fw(struct be_adapter *adapter, u8 *fw_file)
} }
static int be_ndo_bridge_setlink(struct net_device *dev, struct nlmsghdr *nlh, static int be_ndo_bridge_setlink(struct net_device *dev, struct nlmsghdr *nlh,
u16 flags) u16 flags, struct netlink_ext_ack *extack)
{ {
struct be_adapter *adapter = netdev_priv(dev); struct be_adapter *adapter = netdev_priv(dev);
struct nlattr *attr, *br_spec; struct nlattr *attr, *br_spec;

4
drivers/net/ethernet/intel/i40e/i40e_main.c
View File

@ -11685,6 +11685,7 @@ static int i40e_ndo_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
* @dev: the netdev being configured * @dev: the netdev being configured
* @nlh: RTNL message * @nlh: RTNL message
* @flags: bridge flags * @flags: bridge flags
* @extack: netlink extended ack
* *
* Inserts a new hardware bridge if not already created and * Inserts a new hardware bridge if not already created and
* enables the bridging mode requested (VEB or VEPA). If the * enables the bridging mode requested (VEB or VEPA). If the
@ -11697,7 +11698,8 @@ static int i40e_ndo_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
**/ **/
static int i40e_ndo_bridge_setlink(struct net_device *dev, static int i40e_ndo_bridge_setlink(struct net_device *dev,
struct nlmsghdr *nlh, struct nlmsghdr *nlh,
u16 flags) u16 flags,
struct netlink_ext_ack *extack)
{ {
struct i40e_netdev_priv *np = netdev_priv(dev); struct i40e_netdev_priv *np = netdev_priv(dev);
struct i40e_vsi *vsi = np->vsi; struct i40e_vsi *vsi = np->vsi;

3
drivers/net/ethernet/intel/ice/ice_main.c
View File

@ -3624,6 +3624,7 @@ static int ice_vsi_update_bridge_mode(struct ice_vsi *vsi, u16 bmode)
* @dev: the netdev being configured * @dev: the netdev being configured
* @nlh: RTNL message * @nlh: RTNL message
* @flags: bridge setlink flags * @flags: bridge setlink flags
* @extack: netlink extended ack
* *
* Sets the bridge mode (VEB/VEPA) of the switch to which the netdev (VSI) is * Sets the bridge mode (VEB/VEPA) of the switch to which the netdev (VSI) is
* hooked up to. Iterates through the PF VSI list and sets the loopback mode (if * hooked up to. Iterates through the PF VSI list and sets the loopback mode (if
@ -3632,7 +3633,7 @@ static int ice_vsi_update_bridge_mode(struct ice_vsi *vsi, u16 bmode)
*/ */
static int static int
ice_bridge_setlink(struct net_device *dev, struct nlmsghdr *nlh, ice_bridge_setlink(struct net_device *dev, struct nlmsghdr *nlh,
u16 __always_unused flags) u16 __always_unused flags, struct netlink_ext_ack *extack)
{ {
struct ice_netdev_priv *np = netdev_priv(dev); struct ice_netdev_priv *np = netdev_priv(dev);
struct ice_pf *pf = np->vsi->back; struct ice_pf *pf = np->vsi->back;

3
drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
View File

@ -9979,7 +9979,8 @@ static int ixgbe_configure_bridge_mode(struct ixgbe_adapter *adapter,
} }
static int ixgbe_ndo_bridge_setlink(struct net_device *dev, static int ixgbe_ndo_bridge_setlink(struct net_device *dev,
struct nlmsghdr *nlh, u16 flags) struct nlmsghdr *nlh, u16 flags,
struct netlink_ext_ack *extack)
{ {
struct ixgbe_adapter *adapter = netdev_priv(dev); struct ixgbe_adapter *adapter = netdev_priv(dev);
struct nlattr *attr, *br_spec; struct nlattr *attr, *br_spec;

5
include/linux/netdevice.h
View File

@ -1165,7 +1165,7 @@ struct dev_ifalias {
* entries to skb and update idx with the number of entries. * entries to skb and update idx with the number of entries.
* *
* int (*ndo_bridge_setlink)(struct net_device *dev, struct nlmsghdr *nlh, * int (*ndo_bridge_setlink)(struct net_device *dev, struct nlmsghdr *nlh,
* u16 flags) * u16 flags, struct netlink_ext_ack *extack)
* int (*ndo_bridge_getlink)(struct sk_buff *skb, u32 pid, u32 seq, * int (*ndo_bridge_getlink)(struct sk_buff *skb, u32 pid, u32 seq,
* struct net_device *dev, u32 filter_mask, * struct net_device *dev, u32 filter_mask,
* int nlflags) * int nlflags)
@ -1390,7 +1390,8 @@ struct net_device_ops {
int (*ndo_bridge_setlink)(struct net_device *dev, int (*ndo_bridge_setlink)(struct net_device *dev,
struct nlmsghdr *nlh, struct nlmsghdr *nlh,
u16 flags); u16 flags,
struct netlink_ext_ack *extack);
int (*ndo_bridge_getlink)(struct sk_buff *skb, int (*ndo_bridge_getlink)(struct sk_buff *skb,
u32 pid, u32 seq, u32 pid, u32 seq,
struct net_device *dev, struct net_device *dev,

3
net/bridge/br_netlink.c
View File

@ -850,7 +850,8 @@ static int br_setport(struct net_bridge_port *p, struct nlattr *tb[])
} }
/* Change state and parameters on port. */ /* Change state and parameters on port. */
int br_setlink(struct net_device *dev, struct nlmsghdr *nlh, u16 flags) int br_setlink(struct net_device *dev, struct nlmsghdr *nlh, u16 flags,
struct netlink_ext_ack *extack)
{ {
struct net_bridge *br = (struct net_bridge *)netdev_priv(dev); struct net_bridge *br = (struct net_bridge *)netdev_priv(dev);
struct nlattr *tb[IFLA_BRPORT_MAX + 1]; struct nlattr *tb[IFLA_BRPORT_MAX + 1];

3
net/bridge/br_private.h
View File

@ -1138,7 +1138,8 @@ int br_netlink_init(void);
void br_netlink_fini(void); void br_netlink_fini(void);
void br_ifinfo_notify(int event, const struct net_bridge *br, void br_ifinfo_notify(int event, const struct net_bridge *br,
const struct net_bridge_port *port); const struct net_bridge_port *port);
int br_setlink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags); int br_setlink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags,
struct netlink_ext_ack *extack);
int br_dellink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags); int br_dellink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags);
int br_getlink(struct sk_buff *skb, u32 pid, u32 seq, struct net_device *dev, int br_getlink(struct sk_buff *skb, u32 pid, u32 seq, struct net_device *dev,
u32 filter_mask, int nlflags); u32 filter_mask, int nlflags);

6
net/core/rtnetlink.c
View File

@ -4332,7 +4332,8 @@ static int rtnl_bridge_setlink(struct sk_buff *skb, struct nlmsghdr *nlh,
goto out; goto out;
} }
err = br_dev->netdev_ops->ndo_bridge_setlink(dev, nlh, flags); err = br_dev->netdev_ops->ndo_bridge_setlink(dev, nlh, flags,
extack);
if (err) if (err)
goto out; goto out;
@ -4344,7 +4345,8 @@ static int rtnl_bridge_setlink(struct sk_buff *skb, struct nlmsghdr *nlh,
err = -EOPNOTSUPP; err = -EOPNOTSUPP;
else else
err = dev->netdev_ops->ndo_bridge_setlink(dev, nlh, err = dev->netdev_ops->ndo_bridge_setlink(dev, nlh,
flags); flags,
extack);
if (!err) { if (!err) {
flags &= ~BRIDGE_FLAGS_SELF; flags &= ~BRIDGE_FLAGS_SELF;