/* 802.15.4 specific */
struct wpan_dev;
struct mpls_dev;
+/* UDP Tunnel offloads */
+struct udp_tunnel_info;
+struct bpf_prog;
void netdev_set_default_ethtool_ops(struct net_device *dev,
const struct ethtool_ops *ops);
#define NET_XMIT_SUCCESS 0x00
#define NET_XMIT_DROP 0x01 /* skb dropped */
#define NET_XMIT_CN 0x02 /* congestion notification */
-#define NET_XMIT_POLICED 0x03 /* skb is shot by police */
#define NET_XMIT_MASK 0x0f /* qdisc flags in net/sch_generic.h */
/* NET_XMIT_CN is special. It does not guarantee that this packet is lost. It
TC_SETUP_MQPRIO,
TC_SETUP_CLSU32,
TC_SETUP_CLSFLOWER,
+ TC_SETUP_MATCHALL,
};
struct tc_cls_u32_offload;
u8 tc;
struct tc_cls_u32_offload *cls_u32;
struct tc_cls_flower_offload *cls_flower;
+ struct tc_cls_matchall_offload *cls_mall;
};
};
+/* These structures hold the attributes of xdp state that are being passed
+ * to the netdevice through the xdp op.
+ */
+enum xdp_netdev_command {
+ /* Set or clear a bpf program used in the earliest stages of packet
+ * rx. The prog will have been loaded as BPF_PROG_TYPE_XDP. The callee
+ * is responsible for calling bpf_prog_put on any old progs that are
+ * stored. In case of error, the callee need not release the new prog
+ * reference, but on success it takes ownership and must bpf_prog_put
+ * when it is no longer used.
+ */
+ XDP_SETUP_PROG,
+ /* Check if a bpf program is set on the device. The callee should
+ * return true if a program is currently attached and running.
+ */
+ XDP_QUERY_PROG,
+};
+
+struct netdev_xdp {
+ enum xdp_netdev_command command;
+ union {
+ /* XDP_SETUP_PROG */
+ struct bpf_prog *prog;
+ /* XDP_QUERY_PROG */
+ bool prog_attached;
+ };
+};
/*
* This structure defines the management hooks for network devices.
* not implement this, it is assumed that the hw is not able to have
* multiple net devices on single physical port.
*
- * void (*ndo_add_vxlan_port)(struct net_device *dev,
- * sa_family_t sa_family, __be16 port);
- * Called by vxlan to notify a driver about the UDP port and socket
- * address family that vxlan is listening to. It is called only when
- * a new port starts listening. The operation is protected by the
- * vxlan_net->sock_lock.
- *
- * void (*ndo_add_geneve_port)(struct net_device *dev,
- * sa_family_t sa_family, __be16 port);
- * Called by geneve to notify a driver about the UDP port and socket
- * address family that geneve is listnening to. It is called only when
- * a new port starts listening. The operation is protected by the
- * geneve_net->sock_lock.
- *
- * void (*ndo_del_geneve_port)(struct net_device *dev,
- * sa_family_t sa_family, __be16 port);
- * Called by geneve to notify the driver about a UDP port and socket
- * address family that geneve is not listening to anymore. The operation
- * is protected by the geneve_net->sock_lock.
- *
- * void (*ndo_del_vxlan_port)(struct net_device *dev,
- * sa_family_t sa_family, __be16 port);
- * Called by vxlan to notify the driver about a UDP port and socket
- * address family that vxlan is not listening to anymore. The operation
- * is protected by the vxlan_net->sock_lock.
+ * void (*ndo_udp_tunnel_add)(struct net_device *dev,
+ * struct udp_tunnel_info *ti);
+ * Called by UDP tunnel to notify a driver about the UDP port and socket
+ * address family that a UDP tunnel is listnening to. It is called only
+ * when a new port starts listening. The operation is protected by the
+ * RTNL.
+ *
+ * void (*ndo_udp_tunnel_del)(struct net_device *dev,
+ * struct udp_tunnel_info *ti);
+ * Called by UDP tunnel to notify the driver about a UDP port and socket
+ * address family that the UDP tunnel is not listening to anymore. The
+ * operation is protected by the RTNL.
*
* void* (*ndo_dfwd_add_station)(struct net_device *pdev,
* struct net_device *dev)
* appropriate rx headroom value allows avoiding skb head copy on
* forward. Setting a negative value resets the rx headroom to the
* default value.
+ * int (*ndo_xdp)(struct net_device *dev, struct netdev_xdp *xdp);
+ * This function is used to set or query state related to XDP on the
+ * netdevice. See definition of enum xdp_netdev_command for details.
*
*/
struct net_device_ops {
netdev_features_t features);
int (*ndo_set_features)(struct net_device *dev,
netdev_features_t features);
- int (*ndo_neigh_construct)(struct neighbour *n);
- void (*ndo_neigh_destroy)(struct neighbour *n);
+ int (*ndo_neigh_construct)(struct net_device *dev,
+ struct neighbour *n);
+ void (*ndo_neigh_destroy)(struct net_device *dev,
+ struct neighbour *n);
int (*ndo_fdb_add)(struct ndmsg *ndm,
struct nlattr *tb[],
struct netdev_phys_item_id *ppid);
int (*ndo_get_phys_port_name)(struct net_device *dev,
char *name, size_t len);
- void (*ndo_add_vxlan_port)(struct net_device *dev,
- sa_family_t sa_family,
- __be16 port);
- void (*ndo_del_vxlan_port)(struct net_device *dev,
- sa_family_t sa_family,
- __be16 port);
- void (*ndo_add_geneve_port)(struct net_device *dev,
- sa_family_t sa_family,
- __be16 port);
- void (*ndo_del_geneve_port)(struct net_device *dev,
- sa_family_t sa_family,
- __be16 port);
+ void (*ndo_udp_tunnel_add)(struct net_device *dev,
+ struct udp_tunnel_info *ti);
+ void (*ndo_udp_tunnel_del)(struct net_device *dev,
+ struct udp_tunnel_info *ti);
void* (*ndo_dfwd_add_station)(struct net_device *pdev,
struct net_device *dev);
void (*ndo_dfwd_del_station)(struct net_device *pdev,
struct sk_buff *skb);
void (*ndo_set_rx_headroom)(struct net_device *dev,
int needed_headroom);
+ int (*ndo_xdp)(struct net_device *dev,
+ struct netdev_xdp *xdp);
};
/**
* @netdev_ops: Includes several pointers to callbacks,
* if one wants to override the ndo_*() functions
* @ethtool_ops: Management operations
+ * @ndisc_ops: Includes callbacks for different IPv6 neighbour
+ * discovery handling. Necessary for e.g. 6LoWPAN.
* @header_ops: Includes callbacks for creating,parsing,caching,etc
* of Layer 2 headers.
*
* @perm_addr: Permanent hw address
* @addr_assign_type: Hw address assignment type
* @addr_len: Hardware address length
- * @neigh_priv_len; Used in neigh_alloc(),
- * initialized only in atm/clip.c
+ * @neigh_priv_len: Used in neigh_alloc()
* @dev_id: Used to differentiate devices that share
* the same link layer address
* @dev_port: Used to differentiate devices that share
* @phydev: Physical device may attach itself
* for hardware timestamping
*
- * @qdisc_tx_busylock: XXX: need comments on this one
+ * @qdisc_tx_busylock: lockdep class annotating Qdisc->busylock spinlock
+ * @qdisc_running_key: lockdep class annotating Qdisc->running seqcount
*
* @proto_down: protocol port state information can be sent to the
* switch driver and used to set the phys state of the
#ifdef CONFIG_NET_L3_MASTER_DEV
const struct l3mdev_ops *l3mdev_ops;
#endif
+#if IS_ENABLED(CONFIG_IPV6)
+ const struct ndisc_ops *ndisc_ops;
+#endif
const struct header_ops *header_ops;
#endif
struct phy_device *phydev;
struct lock_class_key *qdisc_tx_busylock;
+ struct lock_class_key *qdisc_running_key;
bool proto_down;
};
#define to_net_dev(d) container_of(d, struct net_device, dev)
f(dev, &dev->_tx[i], arg);
}
+#define netdev_lockdep_set_classes(dev) \
+{ \
+ static struct lock_class_key qdisc_tx_busylock_key; \
+ static struct lock_class_key qdisc_running_key; \
+ static struct lock_class_key qdisc_xmit_lock_key; \
+ static struct lock_class_key dev_addr_list_lock_key; \
+ unsigned int i; \
+ \
+ (dev)->qdisc_tx_busylock = &qdisc_tx_busylock_key; \
+ (dev)->qdisc_running_key = &qdisc_running_key; \
+ lockdep_set_class(&(dev)->addr_list_lock, \
+ &dev_addr_list_lock_key); \
+ for (i = 0; i < (dev)->num_tx_queues; i++) \
+ lockdep_set_class(&(dev)->_tx[i]._xmit_lock, \
+ &qdisc_xmit_lock_key); \
+}
+
struct netdev_queue *netdev_pick_tx(struct net_device *dev,
struct sk_buff *skb,
void *accel_priv);
#define NETDEV_BONDING_INFO 0x0019
#define NETDEV_PRECHANGEUPPER 0x001A
#define NETDEV_CHANGELOWERSTATE 0x001B
-#define NETDEV_OFFLOAD_PUSH_VXLAN 0x001C
-#define NETDEV_OFFLOAD_PUSH_GENEVE 0x001D
+#define NETDEV_UDP_TUNNEL_PUSH_INFO 0x001C
+#define NETDEV_CHANGE_TX_QUEUE_LEN 0x001E
int register_netdevice_notifier(struct notifier_block *nb);
int unregister_netdevice_notifier(struct notifier_block *nb);
int init_dummy_netdev(struct net_device *dev);
DECLARE_PER_CPU(int, xmit_recursion);
+#define XMIT_RECURSION_LIMIT 10
+
static inline int dev_recursion_level(void)
{
return this_cpu_read(xmit_recursion);
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);
+int dev_change_xdp_fd(struct net_device *dev, int fd);
struct sk_buff *validate_xmit_skb_list(struct sk_buff *skb, struct net_device *dev);
struct sk_buff *dev_hard_start_xmit(struct sk_buff *skb, struct net_device *dev,
struct netdev_queue *txq, int *ret);
void *netdev_lower_get_next(struct net_device *dev,
struct list_head **iter);
+
#define netdev_for_each_lower_dev(dev, ldev, iter) \
for (iter = (dev)->adj_list.lower.next, \
ldev = netdev_lower_get_next(dev, &(iter)); \
ldev; \
ldev = netdev_lower_get_next(dev, &(iter)))
+struct net_device *netdev_all_lower_get_next(struct net_device *dev,
+ struct list_head **iter);
+struct net_device *netdev_all_lower_get_next_rcu(struct net_device *dev,
+ struct list_head **iter);
+
+#define netdev_for_each_all_lower_dev(dev, ldev, iter) \
+ for (iter = (dev)->all_adj_list.lower.next, \
+ ldev = netdev_all_lower_get_next(dev, &(iter)); \
+ ldev; \
+ ldev = netdev_all_lower_get_next(dev, &(iter)))
+
+#define netdev_for_each_all_lower_dev_rcu(dev, ldev, iter) \
+ for (iter = (dev)->all_adj_list.lower.next, \
+ ldev = netdev_all_lower_get_next_rcu(dev, &(iter)); \
+ ldev; \
+ ldev = netdev_all_lower_get_next_rcu(dev, &(iter)))
+
void *netdev_adjacent_get_private(struct list_head *adj_list);
void *netdev_lower_get_first_private_rcu(struct net_device *dev);
struct net_device *netdev_master_upper_dev_get(struct net_device *dev);
struct net_device *lower_dev);
void netdev_lower_state_changed(struct net_device *lower_dev,
void *lower_state_info);
+int netdev_default_l2upper_neigh_construct(struct net_device *dev,
+ struct neighbour *n);
+void netdev_default_l2upper_neigh_destroy(struct net_device *dev,
+ struct neighbour *n);
/* RSS keys are 40 or 52 bytes long */
#define NETDEV_RSS_KEY_LEN 52
BUILD_BUG_ON(SKB_GSO_UDP_TUNNEL_CSUM != (NETIF_F_GSO_UDP_TUNNEL_CSUM >> NETIF_F_GSO_SHIFT));
BUILD_BUG_ON(SKB_GSO_PARTIAL != (NETIF_F_GSO_PARTIAL >> NETIF_F_GSO_SHIFT));
BUILD_BUG_ON(SKB_GSO_TUNNEL_REMCSUM != (NETIF_F_GSO_TUNNEL_REMCSUM >> NETIF_F_GSO_SHIFT));
+ BUILD_BUG_ON(SKB_GSO_SCTP != (NETIF_F_GSO_SCTP >> NETIF_F_GSO_SHIFT));
return (features & feature) == feature;
}
projects / cascardo / linux.git / blobdiff