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-rw-r--r--net/core/dev.h118
1 files changed, 118 insertions, 0 deletions
diff --git a/net/core/dev.h b/net/core/dev.h
new file mode 100644
index 000000000..db9ff8cd8
--- /dev/null
+++ b/net/core/dev.h
@@ -0,0 +1,118 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+#ifndef _NET_CORE_DEV_H
+#define _NET_CORE_DEV_H
+
+#include <linux/types.h>
+
+struct net;
+struct net_device;
+struct netdev_bpf;
+struct netdev_phys_item_id;
+struct netlink_ext_ack;
+
+/* Random bits of netdevice that don't need to be exposed */
+#define FLOW_LIMIT_HISTORY (1 << 7) /* must be ^2 and !overflow buckets */
+struct sd_flow_limit {
+ u64 count;
+ unsigned int num_buckets;
+ unsigned int history_head;
+ u16 history[FLOW_LIMIT_HISTORY];
+ u8 buckets[];
+};
+
+extern int netdev_flow_limit_table_len;
+
+#ifdef CONFIG_PROC_FS
+int __init dev_proc_init(void);
+#else
+#define dev_proc_init() 0
+#endif
+
+void linkwatch_init_dev(struct net_device *dev);
+void linkwatch_forget_dev(struct net_device *dev);
+void linkwatch_run_queue(void);
+
+void dev_addr_flush(struct net_device *dev);
+int dev_addr_init(struct net_device *dev);
+void dev_addr_check(struct net_device *dev);
+
+/* sysctls not referred to from outside net/core/ */
+extern int netdev_budget;
+extern unsigned int netdev_budget_usecs;
+extern unsigned int sysctl_skb_defer_max;
+extern int netdev_tstamp_prequeue;
+extern int netdev_unregister_timeout_secs;
+extern int weight_p;
+extern int dev_weight_rx_bias;
+extern int dev_weight_tx_bias;
+
+/* rtnl helpers */
+extern struct list_head net_todo_list;
+void netdev_run_todo(void);
+
+/* netdev management, shared between various uAPI entry points */
+struct netdev_name_node {
+ struct hlist_node hlist;
+ struct list_head list;
+ struct net_device *dev;
+ const char *name;
+};
+
+int netdev_get_name(struct net *net, char *name, int ifindex);
+int dev_change_name(struct net_device *dev, const char *newname);
+
+#define netdev_for_each_altname(dev, namenode) \
+ list_for_each_entry((namenode), &(dev)->name_node->list, list)
+#define netdev_for_each_altname_safe(dev, namenode, next) \
+ list_for_each_entry_safe((namenode), (next), &(dev)->name_node->list, \
+ list)
+
+int netdev_name_node_alt_create(struct net_device *dev, const char *name);
+int netdev_name_node_alt_destroy(struct net_device *dev, const char *name);
+
+int dev_validate_mtu(struct net_device *dev, int mtu,
+ struct netlink_ext_ack *extack);
+int dev_set_mtu_ext(struct net_device *dev, int mtu,
+ struct netlink_ext_ack *extack);
+
+int dev_get_phys_port_id(struct net_device *dev,
+ struct netdev_phys_item_id *ppid);
+int dev_get_phys_port_name(struct net_device *dev,
+ char *name, size_t len);
+
+int dev_change_proto_down(struct net_device *dev, bool proto_down);
+void dev_change_proto_down_reason(struct net_device *dev, unsigned long mask,
+ u32 value);
+
+typedef int (*bpf_op_t)(struct net_device *dev, struct netdev_bpf *bpf);
+int dev_change_xdp_fd(struct net_device *dev, struct netlink_ext_ack *extack,
+ int fd, int expected_fd, u32 flags);
+
+int dev_change_tx_queue_len(struct net_device *dev, unsigned long new_len);
+void dev_set_group(struct net_device *dev, int new_group);
+int dev_change_carrier(struct net_device *dev, bool new_carrier);
+
+void __dev_set_rx_mode(struct net_device *dev);
+
+static inline void netif_set_gso_max_size(struct net_device *dev,
+ unsigned int size)
+{
+ /* dev->gso_max_size is read locklessly from sk_setup_caps() */
+ WRITE_ONCE(dev->gso_max_size, size);
+}
+
+static inline void netif_set_gso_max_segs(struct net_device *dev,
+ unsigned int segs)
+{
+ /* dev->gso_max_segs is read locklessly from sk_setup_caps() */
+ WRITE_ONCE(dev->gso_max_segs, segs);
+}
+
+static inline void netif_set_gro_max_size(struct net_device *dev,
+ unsigned int size)
+{
+ /* This pairs with the READ_ONCE() in skb_gro_receive() */
+ WRITE_ONCE(dev->gro_max_size, size);
+}
+
+#endif