#define MACVLAN_HASH_BITS 8
#define MACVLAN_HASH_SIZE (1<<MACVLAN_HASH_BITS)
-#define MACVLAN_BC_QUEUE_LEN 1000
+#define MACVLAN_DEFAULT_BC_QUEUE_LEN 1000
#define MACVLAN_F_PASSTHRU 1
#define MACVLAN_F_ADDRCHANGE 2
struct list_head vlans;
struct sk_buff_head bc_queue;
struct work_struct bc_work;
+ u32 bc_queue_len_used;
u32 flags;
int count;
struct hlist_head vlan_source_hash[MACVLAN_HASH_SIZE];
#define MACVLAN_SKB_CB(__skb) ((struct macvlan_skb_cb *)&((__skb)->cb[0]))
static void macvlan_port_destroy(struct net_device *dev);
+static void update_port_bc_queue_len(struct macvlan_port *port);
static inline bool macvlan_passthru(const struct macvlan_port *port)
{
MACVLAN_SKB_CB(nskb)->src = src;
spin_lock(&port->bc_queue.lock);
- if (skb_queue_len(&port->bc_queue) < MACVLAN_BC_QUEUE_LEN) {
+ if (skb_queue_len(&port->bc_queue) < port->bc_queue_len_used) {
if (src)
dev_hold(src->dev);
__skb_queue_tail(&port->bc_queue, nskb);
for (i = 0; i < MACVLAN_HASH_SIZE; i++)
INIT_HLIST_HEAD(&port->vlan_source_hash[i]);
+ port->bc_queue_len_used = 0;
skb_queue_head_init(&port->bc_queue);
INIT_WORK(&port->bc_work, macvlan_process_broadcast);
goto destroy_macvlan_port;
}
+ vlan->bc_queue_len_req = MACVLAN_DEFAULT_BC_QUEUE_LEN;
+ if (data && data[IFLA_MACVLAN_BC_QUEUE_LEN])
+ vlan->bc_queue_len_req = nla_get_u32(data[IFLA_MACVLAN_BC_QUEUE_LEN]);
+
err = register_netdevice(dev);
if (err < 0)
goto destroy_macvlan_port;
goto unregister_netdev;
list_add_tail_rcu(&vlan->list, &port->vlans);
+ update_port_bc_queue_len(vlan->port);
netif_stacked_transfer_operstate(lowerdev, dev);
linkwatch_fire_event(dev);
if (vlan->mode == MACVLAN_MODE_SOURCE)
macvlan_flush_sources(vlan->port, vlan);
list_del_rcu(&vlan->list);
+ update_port_bc_queue_len(vlan->port);
unregister_netdevice_queue(dev, head);
netdev_upper_dev_unlink(vlan->lowerdev, dev);
}
}
vlan->flags = flags;
}
+
+ if (data && data[IFLA_MACVLAN_BC_QUEUE_LEN]) {
+ vlan->bc_queue_len_req = nla_get_u32(data[IFLA_MACVLAN_BC_QUEUE_LEN]);
+ update_port_bc_queue_len(vlan->port);
+ }
+
if (set_mode)
vlan->mode = mode;
if (data && data[IFLA_MACVLAN_MACADDR_MODE]) {
+ nla_total_size(2) /* IFLA_MACVLAN_FLAGS */
+ nla_total_size(4) /* IFLA_MACVLAN_MACADDR_COUNT */
+ macvlan_get_size_mac(vlan) /* IFLA_MACVLAN_MACADDR */
+ + nla_total_size(4) /* IFLA_MACVLAN_BC_QUEUE_LEN */
+ + nla_total_size(4) /* IFLA_MACVLAN_BC_QUEUE_LEN_USED */
);
}
const struct net_device *dev)
{
struct macvlan_dev *vlan = netdev_priv(dev);
+ struct macvlan_port *port = vlan->port;
int i;
struct nlattr *nest;
}
nla_nest_end(skb, nest);
}
+ if (nla_put_u32(skb, IFLA_MACVLAN_BC_QUEUE_LEN, vlan->bc_queue_len_req))
+ goto nla_put_failure;
+ if (nla_put_u32(skb, IFLA_MACVLAN_BC_QUEUE_LEN_USED, port->bc_queue_len_used))
+ goto nla_put_failure;
return 0;
nla_put_failure:
[IFLA_MACVLAN_MACADDR] = { .type = NLA_BINARY, .len = MAX_ADDR_LEN },
[IFLA_MACVLAN_MACADDR_DATA] = { .type = NLA_NESTED },
[IFLA_MACVLAN_MACADDR_COUNT] = { .type = NLA_U32 },
+ [IFLA_MACVLAN_BC_QUEUE_LEN] = { .type = NLA_U32 },
+ [IFLA_MACVLAN_BC_QUEUE_LEN_USED] = { .type = NLA_REJECT },
};
int macvlan_link_register(struct rtnl_link_ops *ops)
.priv_size = sizeof(struct macvlan_dev),
};
+static void update_port_bc_queue_len(struct macvlan_port *port)
+{
+ u32 max_bc_queue_len_req = 0;
+ struct macvlan_dev *vlan;
+
+ list_for_each_entry(vlan, &port->vlans, list) {
+ if (vlan->bc_queue_len_req > max_bc_queue_len_req)
+ max_bc_queue_len_req = vlan->bc_queue_len_req;
+ }
+ port->bc_queue_len_used = max_bc_queue_len_req;
+}
+
static int macvlan_device_event(struct notifier_block *unused,
unsigned long event, void *ptr)
{