projects / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 6264f58c JK |
1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
| 2 | #ifndef _NET_CORE_DEV_H | |
| 3 | #define _NET_CORE_DEV_H | |
| 4 | ||
| 5 | #include <linux/types.h> | |
| 6 | ||
| 7 | struct net; | |
| 8 | struct net_device; | |
| 9 | struct netdev_bpf; | |
| 10 | struct netdev_phys_item_id; | |
| 11 | struct netlink_ext_ack; | |
| 12 | ||
| 13 | /* Random bits of netdevice that don't need to be exposed */ | |
| 14 | #define FLOW_LIMIT_HISTORY (1 << 7) /* must be ^2 and !overflow buckets */ | |
| 15 | struct sd_flow_limit { | |
| 16 | u64 count; | |
| 17 | unsigned int num_buckets; | |
| 18 | unsigned int history_head; | |
| 19 | u16 history[FLOW_LIMIT_HISTORY]; | |
| 20 | u8 buckets[]; | |
| 21 | }; | |
| 22 | ||
| 23 | extern int netdev_flow_limit_table_len; | |
| 24 | ||
| 25 | #ifdef CONFIG_PROC_FS | |
| 26 | int __init dev_proc_init(void); | |
| 27 | #else | |
| 28 | #define dev_proc_init() 0 | |
| 29 | #endif | |
| 30 | ||
| 31 | void linkwatch_init_dev(struct net_device *dev); | |
| 32 | void linkwatch_forget_dev(struct net_device *dev); | |
| 33 | void linkwatch_run_queue(void); | |
| 34 | ||
| 35 | void dev_addr_flush(struct net_device *dev); | |
| 36 | int dev_addr_init(struct net_device *dev); | |
| 37 | void dev_addr_check(struct net_device *dev); | |
| 38 | ||
| 39 | /* sysctls not referred to from outside net/core/ */ | |
| 40 | extern int netdev_budget; | |
| 41 | extern unsigned int netdev_budget_usecs; | |
| 39564c3f | 42 | extern unsigned int sysctl_skb_defer_max; |
| 6264f58c JK |
43 | extern int netdev_tstamp_prequeue; |
| 44 | extern int netdev_unregister_timeout_secs; | |
| 45 | extern int weight_p; | |
| 46 | extern int dev_weight_rx_bias; | |
| 47 | extern int dev_weight_tx_bias; | |
| 48 | ||
| 49 | /* rtnl helpers */ | |
| 50 | extern struct list_head net_todo_list; | |
| 51 | void netdev_run_todo(void); | |
| 52 | ||
| 53 | /* netdev management, shared between various uAPI entry points */ | |
| 54 | struct netdev_name_node { | |
| 55 | struct hlist_node hlist; | |
| 56 | struct list_head list; | |
| 57 | struct net_device *dev; | |
| 58 | const char *name; | |
| 59 | }; | |
| 60 | ||
| 61 | int netdev_get_name(struct net *net, char *name, int ifindex); | |
| 62 | int dev_change_name(struct net_device *dev, const char *newname); | |
| 63 | ||
| 64 | int netdev_name_node_alt_create(struct net_device *dev, const char *name); | |
| 65 | int netdev_name_node_alt_destroy(struct net_device *dev, const char *name); | |
| 66 | ||
| 67 | int dev_validate_mtu(struct net_device *dev, int mtu, | |
| 68 | struct netlink_ext_ack *extack); | |
| 69 | int dev_set_mtu_ext(struct net_device *dev, int mtu, | |
| 70 | struct netlink_ext_ack *extack); | |
| 71 | ||
| 72 | int dev_get_phys_port_id(struct net_device *dev, | |
| 73 | struct netdev_phys_item_id *ppid); | |
| 74 | int dev_get_phys_port_name(struct net_device *dev, | |
| 75 | char *name, size_t len); | |
| 76 | ||
| 77 | int dev_change_proto_down(struct net_device *dev, bool proto_down); | |
| 78 | void dev_change_proto_down_reason(struct net_device *dev, unsigned long mask, | |
| 79 | u32 value); | |
| 80 | ||
| 81 | typedef int (*bpf_op_t)(struct net_device *dev, struct netdev_bpf *bpf); | |
| 82 | int dev_change_xdp_fd(struct net_device *dev, struct netlink_ext_ack *extack, | |
| 83 | int fd, int expected_fd, u32 flags); | |
| 84 | ||
| 85 | int dev_change_tx_queue_len(struct net_device *dev, unsigned long new_len); | |
| 86 | void dev_set_group(struct net_device *dev, int new_group); | |
| 87 | int dev_change_carrier(struct net_device *dev, bool new_carrier); | |
| 88 | ||
| 89 | void __dev_set_rx_mode(struct net_device *dev); | |
| 90 | ||
| 744d49da JK |
91 | static inline void netif_set_gso_max_size(struct net_device *dev, |
| 92 | unsigned int size) | |
| 93 | { | |
| 94 | /* dev->gso_max_size is read locklessly from sk_setup_caps() */ | |
| 95 | WRITE_ONCE(dev->gso_max_size, size); | |
| 96 | } | |
| 97 | ||
| 98 | static inline void netif_set_gso_max_segs(struct net_device *dev, | |
| 99 | unsigned int segs) | |
| 100 | { | |
| 101 | /* dev->gso_max_segs is read locklessly from sk_setup_caps() */ | |
| 102 | WRITE_ONCE(dev->gso_max_segs, segs); | |
| 103 | } | |
| 104 | ||
| 105 | static inline void netif_set_gro_max_size(struct net_device *dev, | |
| 106 | unsigned int size) | |
| 107 | { | |
| 108 | /* This pairs with the READ_ONCE() in skb_gro_receive() */ | |
| 109 | WRITE_ONCE(dev->gro_max_size, size); | |
| 110 | } | |
| 111 | ||
| 6264f58c | 112 | #endif |