These changes are the raw update to linux-4.4.6-rt14. Kernel sources
[kvmfornfv.git] / kernel / include / net / switchdev.h
index d2e69ee..1d22ce9 100644 (file)
@@ -1,6 +1,6 @@
 /*
  * include/net/switchdev.h - Switch device API
- * Copyright (c) 2014 Jiri Pirko <jiri@resnulli.us>
+ * Copyright (c) 2014-2015 Jiri Pirko <jiri@resnulli.us>
  * Copyright (c) 2014-2015 Scott Feldman <sfeldma@gmail.com>
  *
  * This program is free software; you can redistribute it and/or modify
 
 #include <linux/netdevice.h>
 #include <linux/notifier.h>
+#include <linux/list.h>
+#include <net/ip_fib.h>
 
-struct fib_info;
+#define SWITCHDEV_F_NO_RECURSE         BIT(0)
+#define SWITCHDEV_F_SKIP_EOPNOTSUPP    BIT(1)
+#define SWITCHDEV_F_DEFER              BIT(2)
+
+struct switchdev_trans_item {
+       struct list_head list;
+       void *data;
+       void (*destructor)(const void *data);
+};
+
+struct switchdev_trans {
+       struct list_head item_list;
+       bool ph_prepare;
+};
+
+static inline bool switchdev_trans_ph_prepare(struct switchdev_trans *trans)
+{
+       return trans && trans->ph_prepare;
+}
+
+static inline bool switchdev_trans_ph_commit(struct switchdev_trans *trans)
+{
+       return trans && !trans->ph_prepare;
+}
+
+enum switchdev_attr_id {
+       SWITCHDEV_ATTR_ID_UNDEFINED,
+       SWITCHDEV_ATTR_ID_PORT_PARENT_ID,
+       SWITCHDEV_ATTR_ID_PORT_STP_STATE,
+       SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS,
+       SWITCHDEV_ATTR_ID_BRIDGE_AGEING_TIME,
+};
+
+struct switchdev_attr {
+       enum switchdev_attr_id id;
+       u32 flags;
+       union {
+               struct netdev_phys_item_id ppid;        /* PORT_PARENT_ID */
+               u8 stp_state;                           /* PORT_STP_STATE */
+               unsigned long brport_flags;             /* PORT_BRIDGE_FLAGS */
+               u32 ageing_time;                        /* BRIDGE_AGEING_TIME */
+       } u;
+};
+
+enum switchdev_obj_id {
+       SWITCHDEV_OBJ_ID_UNDEFINED,
+       SWITCHDEV_OBJ_ID_PORT_VLAN,
+       SWITCHDEV_OBJ_ID_IPV4_FIB,
+       SWITCHDEV_OBJ_ID_PORT_FDB,
+};
+
+struct switchdev_obj {
+       enum switchdev_obj_id id;
+       u32 flags;
+};
+
+/* SWITCHDEV_OBJ_ID_PORT_VLAN */
+struct switchdev_obj_port_vlan {
+       struct switchdev_obj obj;
+       u16 flags;
+       u16 vid_begin;
+       u16 vid_end;
+};
+
+#define SWITCHDEV_OBJ_PORT_VLAN(obj) \
+       container_of(obj, struct switchdev_obj_port_vlan, obj)
+
+/* SWITCHDEV_OBJ_ID_IPV4_FIB */
+struct switchdev_obj_ipv4_fib {
+       struct switchdev_obj obj;
+       u32 dst;
+       int dst_len;
+       struct fib_info fi;
+       u8 tos;
+       u8 type;
+       u32 nlflags;
+       u32 tb_id;
+};
+
+#define SWITCHDEV_OBJ_IPV4_FIB(obj) \
+       container_of(obj, struct switchdev_obj_ipv4_fib, obj)
+
+/* SWITCHDEV_OBJ_ID_PORT_FDB */
+struct switchdev_obj_port_fdb {
+       struct switchdev_obj obj;
+       unsigned char addr[ETH_ALEN];
+       u16 vid;
+       u16 ndm_state;
+};
+
+#define SWITCHDEV_OBJ_PORT_FDB(obj) \
+       container_of(obj, struct switchdev_obj_port_fdb, obj)
+
+void switchdev_trans_item_enqueue(struct switchdev_trans *trans,
+                                 void *data, void (*destructor)(void const *),
+                                 struct switchdev_trans_item *tritem);
+void *switchdev_trans_item_dequeue(struct switchdev_trans *trans);
+
+typedef int switchdev_obj_dump_cb_t(struct switchdev_obj *obj);
 
 /**
  * struct switchdev_ops - switchdev operations
  *
- * @swdev_parent_id_get: Called to get an ID of the switch chip this port
- *   is part of.  If driver implements this, it indicates that it
- *   represents a port of a switch chip.
+ * @switchdev_port_attr_get: Get a port attribute (see switchdev_attr).
  *
- * @swdev_port_stp_update: Called to notify switch device port of bridge
- *   port STP state change.
+ * @switchdev_port_attr_set: Set a port attribute (see switchdev_attr).
  *
- * @swdev_fib_ipv4_add: Called to add/modify IPv4 route to switch device.
+ * @switchdev_port_obj_add: Add an object to port (see switchdev_obj_*).
  *
- * @swdev_fib_ipv4_del: Called to delete IPv4 route from switch device.
+ * @switchdev_port_obj_del: Delete an object from port (see switchdev_obj_*).
+ *
+ * @switchdev_port_obj_dump: Dump port objects (see switchdev_obj_*).
  */
-struct swdev_ops {
-       int     (*swdev_parent_id_get)(struct net_device *dev,
-                                      struct netdev_phys_item_id *psid);
-       int     (*swdev_port_stp_update)(struct net_device *dev, u8 state);
-       int     (*swdev_fib_ipv4_add)(struct net_device *dev, __be32 dst,
-                                     int dst_len, struct fib_info *fi,
-                                     u8 tos, u8 type, u32 nlflags,
-                                     u32 tb_id);
-       int     (*swdev_fib_ipv4_del)(struct net_device *dev, __be32 dst,
-                                     int dst_len, struct fib_info *fi,
-                                     u8 tos, u8 type, u32 tb_id);
+struct switchdev_ops {
+       int     (*switchdev_port_attr_get)(struct net_device *dev,
+                                          struct switchdev_attr *attr);
+       int     (*switchdev_port_attr_set)(struct net_device *dev,
+                                          const struct switchdev_attr *attr,
+                                          struct switchdev_trans *trans);
+       int     (*switchdev_port_obj_add)(struct net_device *dev,
+                                         const struct switchdev_obj *obj,
+                                         struct switchdev_trans *trans);
+       int     (*switchdev_port_obj_del)(struct net_device *dev,
+                                         const struct switchdev_obj *obj);
+       int     (*switchdev_port_obj_dump)(struct net_device *dev,
+                                          struct switchdev_obj *obj,
+                                          switchdev_obj_dump_cb_t *cb);
 };
 
-enum netdev_switch_notifier_type {
-       NETDEV_SWITCH_FDB_ADD = 1,
-       NETDEV_SWITCH_FDB_DEL,
+enum switchdev_notifier_type {
+       SWITCHDEV_FDB_ADD = 1,
+       SWITCHDEV_FDB_DEL,
 };
 
-struct netdev_switch_notifier_info {
+struct switchdev_notifier_info {
        struct net_device *dev;
 };
 
-struct netdev_switch_notifier_fdb_info {
-       struct netdev_switch_notifier_info info; /* must be first */
+struct switchdev_notifier_fdb_info {
+       struct switchdev_notifier_info info; /* must be first */
        const unsigned char *addr;
        u16 vid;
 };
 
 static inline struct net_device *
-netdev_switch_notifier_info_to_dev(const struct netdev_switch_notifier_info *info)
+switchdev_notifier_info_to_dev(const struct switchdev_notifier_info *info)
 {
        return info->dev;
 }
 
 #ifdef CONFIG_NET_SWITCHDEV
 
-int netdev_switch_parent_id_get(struct net_device *dev,
-                               struct netdev_phys_item_id *psid);
-int netdev_switch_port_stp_update(struct net_device *dev, u8 state);
-int register_netdev_switch_notifier(struct notifier_block *nb);
-int unregister_netdev_switch_notifier(struct notifier_block *nb);
-int call_netdev_switch_notifiers(unsigned long val, struct net_device *dev,
-                                struct netdev_switch_notifier_info *info);
-int netdev_switch_port_bridge_setlink(struct net_device *dev,
-                               struct nlmsghdr *nlh, u16 flags);
-int netdev_switch_port_bridge_dellink(struct net_device *dev,
-                               struct nlmsghdr *nlh, u16 flags);
-int ndo_dflt_netdev_switch_port_bridge_dellink(struct net_device *dev,
-                                              struct nlmsghdr *nlh, u16 flags);
-int ndo_dflt_netdev_switch_port_bridge_setlink(struct net_device *dev,
-                                              struct nlmsghdr *nlh, u16 flags);
-int netdev_switch_fib_ipv4_add(u32 dst, int dst_len, struct fib_info *fi,
-                              u8 tos, u8 type, u32 nlflags, u32 tb_id);
-int netdev_switch_fib_ipv4_del(u32 dst, int dst_len, struct fib_info *fi,
-                              u8 tos, u8 type, u32 tb_id);
-void netdev_switch_fib_ipv4_abort(struct fib_info *fi);
+void switchdev_deferred_process(void);
+int switchdev_port_attr_get(struct net_device *dev,
+                           struct switchdev_attr *attr);
+int switchdev_port_attr_set(struct net_device *dev,
+                           const struct switchdev_attr *attr);
+int switchdev_port_obj_add(struct net_device *dev,
+                          const struct switchdev_obj *obj);
+int switchdev_port_obj_del(struct net_device *dev,
+                          const struct switchdev_obj *obj);
+int switchdev_port_obj_dump(struct net_device *dev, struct switchdev_obj *obj,
+                           switchdev_obj_dump_cb_t *cb);
+int register_switchdev_notifier(struct notifier_block *nb);
+int unregister_switchdev_notifier(struct notifier_block *nb);
+int call_switchdev_notifiers(unsigned long val, struct net_device *dev,
+                            struct switchdev_notifier_info *info);
+int switchdev_port_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq,
+                                 struct net_device *dev, u32 filter_mask,
+                                 int nlflags);
+int switchdev_port_bridge_setlink(struct net_device *dev,
+                                 struct nlmsghdr *nlh, u16 flags);
+int switchdev_port_bridge_dellink(struct net_device *dev,
+                                 struct nlmsghdr *nlh, u16 flags);
+int switchdev_fib_ipv4_add(u32 dst, int dst_len, struct fib_info *fi,
+                          u8 tos, u8 type, u32 nlflags, u32 tb_id);
+int switchdev_fib_ipv4_del(u32 dst, int dst_len, struct fib_info *fi,
+                          u8 tos, u8 type, u32 tb_id);
+void switchdev_fib_ipv4_abort(struct fib_info *fi);
+int switchdev_port_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
+                          struct net_device *dev, const unsigned char *addr,
+                          u16 vid, u16 nlm_flags);
+int switchdev_port_fdb_del(struct ndmsg *ndm, struct nlattr *tb[],
+                          struct net_device *dev, const unsigned char *addr,
+                          u16 vid);
+int switchdev_port_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb,
+                           struct net_device *dev,
+                           struct net_device *filter_dev, int idx);
+void switchdev_port_fwd_mark_set(struct net_device *dev,
+                                struct net_device *group_dev,
+                                bool joining);
 
 #else
 
-static inline int netdev_switch_parent_id_get(struct net_device *dev,
-                                             struct netdev_phys_item_id *psid)
+static inline void switchdev_deferred_process(void)
+{
+}
+
+static inline int switchdev_port_attr_get(struct net_device *dev,
+                                         struct switchdev_attr *attr)
+{
+       return -EOPNOTSUPP;
+}
+
+static inline int switchdev_port_attr_set(struct net_device *dev,
+                                         const struct switchdev_attr *attr)
+{
+       return -EOPNOTSUPP;
+}
+
+static inline int switchdev_port_obj_add(struct net_device *dev,
+                                        const struct switchdev_obj *obj)
+{
+       return -EOPNOTSUPP;
+}
+
+static inline int switchdev_port_obj_del(struct net_device *dev,
+                                        const struct switchdev_obj *obj)
 {
        return -EOPNOTSUPP;
 }
 
-static inline int netdev_switch_port_stp_update(struct net_device *dev,
-                                               u8 state)
+static inline int switchdev_port_obj_dump(struct net_device *dev,
+                                         const struct switchdev_obj *obj,
+                                         switchdev_obj_dump_cb_t *cb)
 {
        return -EOPNOTSUPP;
 }
 
-static inline int register_netdev_switch_notifier(struct notifier_block *nb)
+static inline int register_switchdev_notifier(struct notifier_block *nb)
 {
        return 0;
 }
 
-static inline int unregister_netdev_switch_notifier(struct notifier_block *nb)
+static inline int unregister_switchdev_notifier(struct notifier_block *nb)
 {
        return 0;
 }
 
-static inline int call_netdev_switch_notifiers(unsigned long val, struct net_device *dev,
-                                              struct netdev_switch_notifier_info *info)
+static inline int call_switchdev_notifiers(unsigned long val,
+                                          struct net_device *dev,
+                                          struct switchdev_notifier_info *info)
 {
        return NOTIFY_DONE;
 }
 
-static inline int netdev_switch_port_bridge_setlink(struct net_device *dev,
-                                                   struct nlmsghdr *nlh,
-                                                   u16 flags)
+static inline int switchdev_port_bridge_getlink(struct sk_buff *skb, u32 pid,
+                                           u32 seq, struct net_device *dev,
+                                           u32 filter_mask, int nlflags)
 {
        return -EOPNOTSUPP;
 }
 
-static inline int netdev_switch_port_bridge_dellink(struct net_device *dev,
-                                                   struct nlmsghdr *nlh,
-                                                   u16 flags)
+static inline int switchdev_port_bridge_setlink(struct net_device *dev,
+                                               struct nlmsghdr *nlh,
+                                               u16 flags)
 {
        return -EOPNOTSUPP;
 }
 
-static inline int ndo_dflt_netdev_switch_port_bridge_dellink(struct net_device *dev,
-                                                       struct nlmsghdr *nlh,
-                                                       u16 flags)
+static inline int switchdev_port_bridge_dellink(struct net_device *dev,
+                                               struct nlmsghdr *nlh,
+                                               u16 flags)
 {
-       return 0;
+       return -EOPNOTSUPP;
 }
 
-static inline int ndo_dflt_netdev_switch_port_bridge_setlink(struct net_device *dev,
-                                                       struct nlmsghdr *nlh,
-                                                       u16 flags)
+static inline int switchdev_fib_ipv4_add(u32 dst, int dst_len,
+                                        struct fib_info *fi,
+                                        u8 tos, u8 type,
+                                        u32 nlflags, u32 tb_id)
 {
        return 0;
 }
 
-static inline int netdev_switch_fib_ipv4_add(u32 dst, int dst_len,
-                                            struct fib_info *fi,
-                                            u8 tos, u8 type,
-                                            u32 nlflags, u32 tb_id)
+static inline int switchdev_fib_ipv4_del(u32 dst, int dst_len,
+                                        struct fib_info *fi,
+                                        u8 tos, u8 type, u32 tb_id)
 {
        return 0;
 }
 
-static inline int netdev_switch_fib_ipv4_del(u32 dst, int dst_len,
-                                            struct fib_info *fi,
-                                            u8 tos, u8 type, u32 tb_id)
+static inline void switchdev_fib_ipv4_abort(struct fib_info *fi)
 {
-       return 0;
 }
 
-static inline void netdev_switch_fib_ipv4_abort(struct fib_info *fi)
+static inline int switchdev_port_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
+                                        struct net_device *dev,
+                                        const unsigned char *addr,
+                                        u16 vid, u16 nlm_flags)
+{
+       return -EOPNOTSUPP;
+}
+
+static inline int switchdev_port_fdb_del(struct ndmsg *ndm, struct nlattr *tb[],
+                                        struct net_device *dev,
+                                        const unsigned char *addr, u16 vid)
+{
+       return -EOPNOTSUPP;
+}
+
+static inline int switchdev_port_fdb_dump(struct sk_buff *skb,
+                                         struct netlink_callback *cb,
+                                         struct net_device *dev,
+                                         struct net_device *filter_dev,
+                                         int idx)
+{
+       return idx;
+}
+
+static inline void switchdev_port_fwd_mark_set(struct net_device *dev,
+                                              struct net_device *group_dev,
+                                              bool joining)
 {
 }