mirror of
https://github.com/torvalds/linux.git
synced 2024-11-18 18:11:56 +00:00
7d720c3e4f
Add __percpu sparse annotations to net. These annotations are to make sparse consider percpu variables to be in a different address space and warn if accessed without going through percpu accessors. This patch doesn't affect normal builds. The macro and type tricks around snmp stats make things a bit interesting. DEFINE/DECLARE_SNMP_STAT() macros mark the target field as __percpu and SNMP_UPD_PO_STATS() macro is updated accordingly. All snmp_mib_*() users which used to cast the argument to (void **) are updated to cast it to (void __percpu **). Signed-off-by: Tejun Heo <tj@kernel.org> Acked-by: David S. Miller <davem@davemloft.net> Cc: Patrick McHardy <kaber@trash.net> Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net> Cc: Vlad Yasevich <vladislav.yasevich@hp.com> Cc: netdev@vger.kernel.org Signed-off-by: David S. Miller <davem@davemloft.net>
154 lines
5.0 KiB
C
154 lines
5.0 KiB
C
#ifndef __BEN_VLAN_802_1Q_INC__
|
|
#define __BEN_VLAN_802_1Q_INC__
|
|
|
|
#include <linux/if_vlan.h>
|
|
|
|
|
|
/**
|
|
* struct vlan_priority_tci_mapping - vlan egress priority mappings
|
|
* @priority: skb priority
|
|
* @vlan_qos: vlan priority: (skb->priority << 13) & 0xE000
|
|
* @next: pointer to next struct
|
|
*/
|
|
struct vlan_priority_tci_mapping {
|
|
u32 priority;
|
|
u16 vlan_qos;
|
|
struct vlan_priority_tci_mapping *next;
|
|
};
|
|
|
|
|
|
/**
|
|
* struct vlan_rx_stats - VLAN percpu rx stats
|
|
* @rx_packets: number of received packets
|
|
* @rx_bytes: number of received bytes
|
|
* @multicast: number of received multicast packets
|
|
* @rx_errors: number of errors
|
|
*/
|
|
struct vlan_rx_stats {
|
|
unsigned long rx_packets;
|
|
unsigned long rx_bytes;
|
|
unsigned long multicast;
|
|
unsigned long rx_errors;
|
|
};
|
|
|
|
/**
|
|
* struct vlan_dev_info - VLAN private device data
|
|
* @nr_ingress_mappings: number of ingress priority mappings
|
|
* @ingress_priority_map: ingress priority mappings
|
|
* @nr_egress_mappings: number of egress priority mappings
|
|
* @egress_priority_map: hash of egress priority mappings
|
|
* @vlan_id: VLAN identifier
|
|
* @flags: device flags
|
|
* @real_dev: underlying netdevice
|
|
* @real_dev_addr: address of underlying netdevice
|
|
* @dent: proc dir entry
|
|
* @cnt_inc_headroom_on_tx: statistic - number of skb expansions on TX
|
|
* @cnt_encap_on_xmit: statistic - number of skb encapsulations on TX
|
|
* @vlan_rx_stats: ptr to percpu rx stats
|
|
*/
|
|
struct vlan_dev_info {
|
|
unsigned int nr_ingress_mappings;
|
|
u32 ingress_priority_map[8];
|
|
unsigned int nr_egress_mappings;
|
|
struct vlan_priority_tci_mapping *egress_priority_map[16];
|
|
|
|
u16 vlan_id;
|
|
u16 flags;
|
|
|
|
struct net_device *real_dev;
|
|
unsigned char real_dev_addr[ETH_ALEN];
|
|
|
|
struct proc_dir_entry *dent;
|
|
unsigned long cnt_inc_headroom_on_tx;
|
|
unsigned long cnt_encap_on_xmit;
|
|
struct vlan_rx_stats __percpu *vlan_rx_stats;
|
|
};
|
|
|
|
static inline struct vlan_dev_info *vlan_dev_info(const struct net_device *dev)
|
|
{
|
|
return netdev_priv(dev);
|
|
}
|
|
|
|
#define VLAN_GRP_HASH_SHIFT 5
|
|
#define VLAN_GRP_HASH_SIZE (1 << VLAN_GRP_HASH_SHIFT)
|
|
#define VLAN_GRP_HASH_MASK (VLAN_GRP_HASH_SIZE - 1)
|
|
|
|
/* Find a VLAN device by the MAC address of its Ethernet device, and
|
|
* it's VLAN ID. The default configuration is to have VLAN's scope
|
|
* to be box-wide, so the MAC will be ignored. The mac will only be
|
|
* looked at if we are configured to have a separate set of VLANs per
|
|
* each MAC addressable interface. Note that this latter option does
|
|
* NOT follow the spec for VLANs, but may be useful for doing very
|
|
* large quantities of VLAN MUX/DEMUX onto FrameRelay or ATM PVCs.
|
|
*
|
|
* Must be invoked with rcu_read_lock (ie preempt disabled)
|
|
* or with RTNL.
|
|
*/
|
|
struct net_device *__find_vlan_dev(struct net_device *real_dev, u16 vlan_id);
|
|
|
|
/* found in vlan_dev.c */
|
|
int vlan_skb_recv(struct sk_buff *skb, struct net_device *dev,
|
|
struct packet_type *ptype, struct net_device *orig_dev);
|
|
void vlan_dev_set_ingress_priority(const struct net_device *dev,
|
|
u32 skb_prio, u16 vlan_prio);
|
|
int vlan_dev_set_egress_priority(const struct net_device *dev,
|
|
u32 skb_prio, u16 vlan_prio);
|
|
int vlan_dev_change_flags(const struct net_device *dev, u32 flag, u32 mask);
|
|
void vlan_dev_get_realdev_name(const struct net_device *dev, char *result);
|
|
|
|
int vlan_check_real_dev(struct net_device *real_dev, u16 vlan_id);
|
|
void vlan_setup(struct net_device *dev);
|
|
int register_vlan_dev(struct net_device *dev);
|
|
void unregister_vlan_dev(struct net_device *dev, struct list_head *head);
|
|
|
|
static inline u32 vlan_get_ingress_priority(struct net_device *dev,
|
|
u16 vlan_tci)
|
|
{
|
|
struct vlan_dev_info *vip = vlan_dev_info(dev);
|
|
|
|
return vip->ingress_priority_map[(vlan_tci >> VLAN_PRIO_SHIFT) & 0x7];
|
|
}
|
|
|
|
#ifdef CONFIG_VLAN_8021Q_GVRP
|
|
extern int vlan_gvrp_request_join(const struct net_device *dev);
|
|
extern void vlan_gvrp_request_leave(const struct net_device *dev);
|
|
extern int vlan_gvrp_init_applicant(struct net_device *dev);
|
|
extern void vlan_gvrp_uninit_applicant(struct net_device *dev);
|
|
extern int vlan_gvrp_init(void);
|
|
extern void vlan_gvrp_uninit(void);
|
|
#else
|
|
static inline int vlan_gvrp_request_join(const struct net_device *dev) { return 0; }
|
|
static inline void vlan_gvrp_request_leave(const struct net_device *dev) {}
|
|
static inline int vlan_gvrp_init_applicant(struct net_device *dev) { return 0; }
|
|
static inline void vlan_gvrp_uninit_applicant(struct net_device *dev) {}
|
|
static inline int vlan_gvrp_init(void) { return 0; }
|
|
static inline void vlan_gvrp_uninit(void) {}
|
|
#endif
|
|
|
|
extern const char vlan_fullname[];
|
|
extern const char vlan_version[];
|
|
extern int vlan_netlink_init(void);
|
|
extern void vlan_netlink_fini(void);
|
|
|
|
extern struct rtnl_link_ops vlan_link_ops;
|
|
|
|
static inline int is_vlan_dev(struct net_device *dev)
|
|
{
|
|
return dev->priv_flags & IFF_802_1Q_VLAN;
|
|
}
|
|
|
|
extern int vlan_net_id;
|
|
|
|
struct proc_dir_entry;
|
|
|
|
struct vlan_net {
|
|
/* /proc/net/vlan */
|
|
struct proc_dir_entry *proc_vlan_dir;
|
|
/* /proc/net/vlan/config */
|
|
struct proc_dir_entry *proc_vlan_conf;
|
|
/* Determines interface naming scheme. */
|
|
unsigned short name_type;
|
|
};
|
|
|
|
#endif /* !(__BEN_VLAN_802_1Q_INC__) */
|