mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-09-14 06:35:12 +00:00
0d2cfbd41c
There is a slight inconvenience in the switchdev replay helpers added recently, and this is when: ip link add br0 type bridge ip link add bond0 type bond ip link set bond0 master br0 bridge vlan add dev bond0 vid 100 ip link set swp0 master bond0 ip link set swp1 master bond0 Since the underlying driver (currently only DSA) asks for a replay of VLANs when swp0 and swp1 join the LAG because it is bridged, what will happen is that DSA will try to react twice on the VLAN event for swp0. This is not really a huge problem right now, because most drivers accept duplicates since the bridge itself does, but it will become a problem when we add support for replaying switchdev object deletions. Let's fix this by adding a blank void *ctx in the replay helpers, which will be passed on by the bridge in the switchdev notifications. If the context is NULL, everything is the same as before. But if the context is populated with a valid pointer, the underlying switchdev driver (currently DSA) can use the pointer to 'see through' the bridge port (which in the example above is bond0) and 'know' that the event is only for a particular physical port offloading that bridge port, and not for all of them. Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
209 lines
5.4 KiB
C
209 lines
5.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
|
|
/*
|
|
* Linux ethernet bridge
|
|
*
|
|
* Authors:
|
|
* Lennert Buytenhek <buytenh@gnu.org>
|
|
*/
|
|
#ifndef _LINUX_IF_BRIDGE_H
|
|
#define _LINUX_IF_BRIDGE_H
|
|
|
|
|
|
#include <linux/netdevice.h>
|
|
#include <uapi/linux/if_bridge.h>
|
|
#include <linux/bitops.h>
|
|
|
|
struct br_ip {
|
|
union {
|
|
__be32 ip4;
|
|
#if IS_ENABLED(CONFIG_IPV6)
|
|
struct in6_addr ip6;
|
|
#endif
|
|
} src;
|
|
union {
|
|
__be32 ip4;
|
|
#if IS_ENABLED(CONFIG_IPV6)
|
|
struct in6_addr ip6;
|
|
#endif
|
|
unsigned char mac_addr[ETH_ALEN];
|
|
} dst;
|
|
__be16 proto;
|
|
__u16 vid;
|
|
};
|
|
|
|
struct br_ip_list {
|
|
struct list_head list;
|
|
struct br_ip addr;
|
|
};
|
|
|
|
#define BR_HAIRPIN_MODE BIT(0)
|
|
#define BR_BPDU_GUARD BIT(1)
|
|
#define BR_ROOT_BLOCK BIT(2)
|
|
#define BR_MULTICAST_FAST_LEAVE BIT(3)
|
|
#define BR_ADMIN_COST BIT(4)
|
|
#define BR_LEARNING BIT(5)
|
|
#define BR_FLOOD BIT(6)
|
|
#define BR_AUTO_MASK (BR_FLOOD | BR_LEARNING)
|
|
#define BR_PROMISC BIT(7)
|
|
#define BR_PROXYARP BIT(8)
|
|
#define BR_LEARNING_SYNC BIT(9)
|
|
#define BR_PROXYARP_WIFI BIT(10)
|
|
#define BR_MCAST_FLOOD BIT(11)
|
|
#define BR_MULTICAST_TO_UNICAST BIT(12)
|
|
#define BR_VLAN_TUNNEL BIT(13)
|
|
#define BR_BCAST_FLOOD BIT(14)
|
|
#define BR_NEIGH_SUPPRESS BIT(15)
|
|
#define BR_ISOLATED BIT(16)
|
|
#define BR_MRP_AWARE BIT(17)
|
|
#define BR_MRP_LOST_CONT BIT(18)
|
|
#define BR_MRP_LOST_IN_CONT BIT(19)
|
|
|
|
#define BR_DEFAULT_AGEING_TIME (300 * HZ)
|
|
|
|
extern void brioctl_set(int (*ioctl_hook)(struct net *, unsigned int, void __user *));
|
|
|
|
#if IS_ENABLED(CONFIG_BRIDGE) && IS_ENABLED(CONFIG_BRIDGE_IGMP_SNOOPING)
|
|
int br_multicast_list_adjacent(struct net_device *dev,
|
|
struct list_head *br_ip_list);
|
|
bool br_multicast_has_querier_anywhere(struct net_device *dev, int proto);
|
|
bool br_multicast_has_querier_adjacent(struct net_device *dev, int proto);
|
|
bool br_multicast_has_router_adjacent(struct net_device *dev, int proto);
|
|
bool br_multicast_enabled(const struct net_device *dev);
|
|
bool br_multicast_router(const struct net_device *dev);
|
|
int br_mdb_replay(struct net_device *br_dev, struct net_device *dev,
|
|
const void *ctx, struct notifier_block *nb,
|
|
struct netlink_ext_ack *extack);
|
|
#else
|
|
static inline int br_multicast_list_adjacent(struct net_device *dev,
|
|
struct list_head *br_ip_list)
|
|
{
|
|
return 0;
|
|
}
|
|
static inline bool br_multicast_has_querier_anywhere(struct net_device *dev,
|
|
int proto)
|
|
{
|
|
return false;
|
|
}
|
|
static inline bool br_multicast_has_querier_adjacent(struct net_device *dev,
|
|
int proto)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
static inline bool br_multicast_has_router_adjacent(struct net_device *dev,
|
|
int proto)
|
|
{
|
|
return true;
|
|
}
|
|
|
|
static inline bool br_multicast_enabled(const struct net_device *dev)
|
|
{
|
|
return false;
|
|
}
|
|
static inline bool br_multicast_router(const struct net_device *dev)
|
|
{
|
|
return false;
|
|
}
|
|
static inline int br_mdb_replay(struct net_device *br_dev,
|
|
struct net_device *dev, const void *ctx,
|
|
struct notifier_block *nb,
|
|
struct netlink_ext_ack *extack)
|
|
{
|
|
return -EOPNOTSUPP;
|
|
}
|
|
#endif
|
|
|
|
#if IS_ENABLED(CONFIG_BRIDGE) && IS_ENABLED(CONFIG_BRIDGE_VLAN_FILTERING)
|
|
bool br_vlan_enabled(const struct net_device *dev);
|
|
int br_vlan_get_pvid(const struct net_device *dev, u16 *p_pvid);
|
|
int br_vlan_get_pvid_rcu(const struct net_device *dev, u16 *p_pvid);
|
|
int br_vlan_get_proto(const struct net_device *dev, u16 *p_proto);
|
|
int br_vlan_get_info(const struct net_device *dev, u16 vid,
|
|
struct bridge_vlan_info *p_vinfo);
|
|
int br_vlan_replay(struct net_device *br_dev, struct net_device *dev,
|
|
const void *ctx, struct notifier_block *nb,
|
|
struct netlink_ext_ack *extack);
|
|
#else
|
|
static inline bool br_vlan_enabled(const struct net_device *dev)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
static inline int br_vlan_get_pvid(const struct net_device *dev, u16 *p_pvid)
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
|
|
static inline int br_vlan_get_proto(const struct net_device *dev, u16 *p_proto)
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
|
|
static inline int br_vlan_get_pvid_rcu(const struct net_device *dev, u16 *p_pvid)
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
|
|
static inline int br_vlan_get_info(const struct net_device *dev, u16 vid,
|
|
struct bridge_vlan_info *p_vinfo)
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
|
|
static inline int br_vlan_replay(struct net_device *br_dev,
|
|
struct net_device *dev, const void *ctx,
|
|
struct notifier_block *nb,
|
|
struct netlink_ext_ack *extack)
|
|
{
|
|
return -EOPNOTSUPP;
|
|
}
|
|
#endif
|
|
|
|
#if IS_ENABLED(CONFIG_BRIDGE)
|
|
struct net_device *br_fdb_find_port(const struct net_device *br_dev,
|
|
const unsigned char *addr,
|
|
__u16 vid);
|
|
void br_fdb_clear_offload(const struct net_device *dev, u16 vid);
|
|
bool br_port_flag_is_set(const struct net_device *dev, unsigned long flag);
|
|
u8 br_port_get_stp_state(const struct net_device *dev);
|
|
clock_t br_get_ageing_time(struct net_device *br_dev);
|
|
int br_fdb_replay(struct net_device *br_dev, struct net_device *dev,
|
|
const void *ctx, struct notifier_block *nb);
|
|
#else
|
|
static inline struct net_device *
|
|
br_fdb_find_port(const struct net_device *br_dev,
|
|
const unsigned char *addr,
|
|
__u16 vid)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
static inline void br_fdb_clear_offload(const struct net_device *dev, u16 vid)
|
|
{
|
|
}
|
|
|
|
static inline bool
|
|
br_port_flag_is_set(const struct net_device *dev, unsigned long flag)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
static inline u8 br_port_get_stp_state(const struct net_device *dev)
|
|
{
|
|
return BR_STATE_DISABLED;
|
|
}
|
|
|
|
static inline clock_t br_get_ageing_time(struct net_device *br_dev)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline int br_fdb_replay(struct net_device *br_dev,
|
|
struct net_device *dev, const void *ctx,
|
|
struct notifier_block *nb)
|
|
{
|
|
return -EOPNOTSUPP;
|
|
}
|
|
#endif
|
|
|
|
#endif
|