mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-12 21:36:44 +07:00
308453aa91
The MAC address of the physical interface is only copied to the VLAN when it is first created, resulting in an inconsistency after MAC address changes of only newly created VLANs having an up-to-date MAC. The VLANs should continue inheriting the MAC address of the physical interface until the VLAN MAC address is explicitly set to any value. This allows IPv6 EUI64 addresses for the VLAN to reflect any changes to the MAC of the physical interface and thus for DAD to behave as expected. Signed-off-by: Mike Manning <mmanning@brocade.com> Signed-off-by: David S. Miller <davem@davemloft.net>
176 lines
5.4 KiB
C
176 lines
5.4 KiB
C
#ifndef __BEN_VLAN_802_1Q_INC__
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#define __BEN_VLAN_802_1Q_INC__
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#include <linux/if_vlan.h>
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#include <linux/u64_stats_sync.h>
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#include <linux/list.h>
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/* if this changes, algorithm will have to be reworked because this
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* depends on completely exhausting the VLAN identifier space. Thus
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* it gives constant time look-up, but in many cases it wastes memory.
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*/
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#define VLAN_GROUP_ARRAY_SPLIT_PARTS 8
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#define VLAN_GROUP_ARRAY_PART_LEN (VLAN_N_VID/VLAN_GROUP_ARRAY_SPLIT_PARTS)
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enum vlan_protos {
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VLAN_PROTO_8021Q = 0,
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VLAN_PROTO_8021AD,
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VLAN_PROTO_NUM,
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};
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struct vlan_group {
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unsigned int nr_vlan_devs;
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struct hlist_node hlist; /* linked list */
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struct net_device **vlan_devices_arrays[VLAN_PROTO_NUM]
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[VLAN_GROUP_ARRAY_SPLIT_PARTS];
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};
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struct vlan_info {
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struct net_device *real_dev; /* The ethernet(like) device
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* the vlan is attached to.
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*/
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struct vlan_group grp;
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struct list_head vid_list;
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unsigned int nr_vids;
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struct rcu_head rcu;
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};
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static inline unsigned int vlan_proto_idx(__be16 proto)
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{
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switch (proto) {
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case htons(ETH_P_8021Q):
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return VLAN_PROTO_8021Q;
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case htons(ETH_P_8021AD):
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return VLAN_PROTO_8021AD;
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default:
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BUG();
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return 0;
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}
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}
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static inline struct net_device *__vlan_group_get_device(struct vlan_group *vg,
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unsigned int pidx,
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u16 vlan_id)
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{
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struct net_device **array;
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array = vg->vlan_devices_arrays[pidx]
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[vlan_id / VLAN_GROUP_ARRAY_PART_LEN];
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return array ? array[vlan_id % VLAN_GROUP_ARRAY_PART_LEN] : NULL;
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}
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static inline struct net_device *vlan_group_get_device(struct vlan_group *vg,
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__be16 vlan_proto,
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u16 vlan_id)
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{
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return __vlan_group_get_device(vg, vlan_proto_idx(vlan_proto), vlan_id);
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}
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static inline void vlan_group_set_device(struct vlan_group *vg,
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__be16 vlan_proto, u16 vlan_id,
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struct net_device *dev)
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{
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struct net_device **array;
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if (!vg)
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return;
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array = vg->vlan_devices_arrays[vlan_proto_idx(vlan_proto)]
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[vlan_id / VLAN_GROUP_ARRAY_PART_LEN];
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array[vlan_id % VLAN_GROUP_ARRAY_PART_LEN] = dev;
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}
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/* Must be invoked with rcu_read_lock or with RTNL. */
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static inline struct net_device *vlan_find_dev(struct net_device *real_dev,
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__be16 vlan_proto, u16 vlan_id)
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{
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struct vlan_info *vlan_info = rcu_dereference_rtnl(real_dev->vlan_info);
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if (vlan_info)
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return vlan_group_get_device(&vlan_info->grp,
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vlan_proto, vlan_id);
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return NULL;
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}
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#define vlan_group_for_each_dev(grp, i, dev) \
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for ((i) = 0; i < VLAN_PROTO_NUM * VLAN_N_VID; i++) \
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if (((dev) = __vlan_group_get_device((grp), (i) / VLAN_N_VID, \
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(i) % VLAN_N_VID)))
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/* found in vlan_dev.c */
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void vlan_dev_set_ingress_priority(const struct net_device *dev,
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u32 skb_prio, u16 vlan_prio);
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int vlan_dev_set_egress_priority(const struct net_device *dev,
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u32 skb_prio, u16 vlan_prio);
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int vlan_dev_change_flags(const struct net_device *dev, u32 flag, u32 mask);
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void vlan_dev_get_realdev_name(const struct net_device *dev, char *result);
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int vlan_check_real_dev(struct net_device *real_dev,
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__be16 protocol, u16 vlan_id);
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void vlan_setup(struct net_device *dev);
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int register_vlan_dev(struct net_device *dev);
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void unregister_vlan_dev(struct net_device *dev, struct list_head *head);
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bool vlan_dev_inherit_address(struct net_device *dev,
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struct net_device *real_dev);
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static inline u32 vlan_get_ingress_priority(struct net_device *dev,
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u16 vlan_tci)
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{
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struct vlan_dev_priv *vip = vlan_dev_priv(dev);
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return vip->ingress_priority_map[(vlan_tci >> VLAN_PRIO_SHIFT) & 0x7];
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}
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#ifdef CONFIG_VLAN_8021Q_GVRP
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int vlan_gvrp_request_join(const struct net_device *dev);
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void vlan_gvrp_request_leave(const struct net_device *dev);
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int vlan_gvrp_init_applicant(struct net_device *dev);
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void vlan_gvrp_uninit_applicant(struct net_device *dev);
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int vlan_gvrp_init(void);
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void vlan_gvrp_uninit(void);
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#else
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static inline int vlan_gvrp_request_join(const struct net_device *dev) { return 0; }
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static inline void vlan_gvrp_request_leave(const struct net_device *dev) {}
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static inline int vlan_gvrp_init_applicant(struct net_device *dev) { return 0; }
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static inline void vlan_gvrp_uninit_applicant(struct net_device *dev) {}
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static inline int vlan_gvrp_init(void) { return 0; }
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static inline void vlan_gvrp_uninit(void) {}
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#endif
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#ifdef CONFIG_VLAN_8021Q_MVRP
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int vlan_mvrp_request_join(const struct net_device *dev);
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void vlan_mvrp_request_leave(const struct net_device *dev);
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int vlan_mvrp_init_applicant(struct net_device *dev);
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void vlan_mvrp_uninit_applicant(struct net_device *dev);
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int vlan_mvrp_init(void);
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void vlan_mvrp_uninit(void);
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#else
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static inline int vlan_mvrp_request_join(const struct net_device *dev) { return 0; }
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static inline void vlan_mvrp_request_leave(const struct net_device *dev) {}
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static inline int vlan_mvrp_init_applicant(struct net_device *dev) { return 0; }
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static inline void vlan_mvrp_uninit_applicant(struct net_device *dev) {}
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static inline int vlan_mvrp_init(void) { return 0; }
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static inline void vlan_mvrp_uninit(void) {}
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#endif
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extern const char vlan_fullname[];
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extern const char vlan_version[];
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int vlan_netlink_init(void);
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void vlan_netlink_fini(void);
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extern struct rtnl_link_ops vlan_link_ops;
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extern int vlan_net_id;
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struct proc_dir_entry;
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struct vlan_net {
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/* /proc/net/vlan */
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struct proc_dir_entry *proc_vlan_dir;
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/* /proc/net/vlan/config */
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struct proc_dir_entry *proc_vlan_conf;
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/* Determines interface naming scheme. */
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unsigned short name_type;
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};
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#endif /* !(__BEN_VLAN_802_1Q_INC__) */
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