br_switchdev.c | Explore in Territory

// SPDX-License-Identifier: GPL-2.0
#include <linux/kernel.h>
#include <linux/list.h>
#include <linux/netdevice.h>
#include <linux/rtnetlink.h>
#include <linux/skbuff.h>
#include <net/ip.h>
#include <net/switchdev.h>

#include "br_private.h"

static struct static_key_false br_switchdev_tx_fwd_offload;

static bool nbp_switchdev_can_offload_tx_fwd(const struct net_bridge_port *p,
					     const struct sk_buff *skb)
{ … }

bool br_switchdev_frame_uses_tx_fwd_offload(struct sk_buff *skb)
{ … }

void br_switchdev_frame_set_offload_fwd_mark(struct sk_buff *skb)
{ … }

/* Mark the frame for TX forwarding offload if this egress port supports it */
void nbp_switchdev_frame_mark_tx_fwd_offload(const struct net_bridge_port *p,
					     struct sk_buff *skb)
{ … }

/* Lazily adds the hwdom of the egress bridge port to the bit mask of hwdoms
 * that the skb has been already forwarded to, to avoid further cloning to
 * other ports in the same hwdom by making nbp_switchdev_allowed_egress()
 * return false.
 */
void nbp_switchdev_frame_mark_tx_fwd_to_hwdom(const struct net_bridge_port *p,
					      struct sk_buff *skb)
{ … }

void nbp_switchdev_frame_mark(const struct net_bridge_port *p,
			      struct sk_buff *skb)
{ … }

bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p,
				  const struct sk_buff *skb)
{ … }

/* Flags that can be offloaded to hardware */
#define BR_PORT_FLAGS_HW_OFFLOAD …

int br_switchdev_set_port_flag(struct net_bridge_port *p,
			       unsigned long flags,
			       unsigned long mask,
			       struct netlink_ext_ack *extack)
{ … }

static void br_switchdev_fdb_populate(struct net_bridge *br,
				      struct switchdev_notifier_fdb_info *item,
				      const struct net_bridge_fdb_entry *fdb,
				      const void *ctx)
{ … }

void
br_switchdev_fdb_notify(struct net_bridge *br,
			const struct net_bridge_fdb_entry *fdb, int type)
{ … }

int br_switchdev_port_vlan_add(struct net_device *dev, u16 vid, u16 flags,
			       bool changed, struct netlink_ext_ack *extack)
{ … }

int br_switchdev_port_vlan_del(struct net_device *dev, u16 vid)
{ … }

static int nbp_switchdev_hwdom_set(struct net_bridge_port *joining)
{ … }

static void nbp_switchdev_hwdom_put(struct net_bridge_port *leaving)
{ … }

static int nbp_switchdev_add(struct net_bridge_port *p,
			     struct netdev_phys_item_id ppid,
			     bool tx_fwd_offload,
			     struct netlink_ext_ack *extack)
{ … }

static void nbp_switchdev_del(struct net_bridge_port *p)
{ … }

static int
br_switchdev_fdb_replay_one(struct net_bridge *br, struct notifier_block *nb,
			    const struct net_bridge_fdb_entry *fdb,
			    unsigned long action, const void *ctx)
{ … }

static int
br_switchdev_fdb_replay(const struct net_device *br_dev, const void *ctx,
			bool adding, struct notifier_block *nb)
{ … }

static int br_switchdev_vlan_attr_replay(struct net_device *br_dev,
					 const void *ctx,
					 struct notifier_block *nb,
					 struct netlink_ext_ack *extack)
{ … }

static int
br_switchdev_vlan_replay_one(struct notifier_block *nb,
			     struct net_device *dev,
			     struct switchdev_obj_port_vlan *vlan,
			     const void *ctx, unsigned long action,
			     struct netlink_ext_ack *extack)
{ … }

static int br_switchdev_vlan_replay_group(struct notifier_block *nb,
					  struct net_device *dev,
					  struct net_bridge_vlan_group *vg,
					  const void *ctx, unsigned long action,
					  struct netlink_ext_ack *extack)
{ … }

static int br_switchdev_vlan_replay(struct net_device *br_dev,
				    const void *ctx, bool adding,
				    struct notifier_block *nb,
				    struct netlink_ext_ack *extack)
{ … }

#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
struct br_switchdev_mdb_complete_info { … };

static void br_switchdev_mdb_complete(struct net_device *dev, int err, void *priv)
{ … }

static void br_switchdev_mdb_populate(struct switchdev_obj_port_mdb *mdb,
				      const struct net_bridge_mdb_entry *mp)
{ … }

static void br_switchdev_host_mdb_one(struct net_device *dev,
				      struct net_device *lower_dev,
				      struct net_bridge_mdb_entry *mp,
				      int type)
{ … }

static void br_switchdev_host_mdb(struct net_device *dev,
				  struct net_bridge_mdb_entry *mp, int type)
{ … }

static int
br_switchdev_mdb_replay_one(struct notifier_block *nb, struct net_device *dev,
			    const struct switchdev_obj_port_mdb *mdb,
			    unsigned long action, const void *ctx,
			    struct netlink_ext_ack *extack)
{ … }

static int br_switchdev_mdb_queue_one(struct list_head *mdb_list,
				      struct net_device *dev,
				      unsigned long action,
				      enum switchdev_obj_id id,
				      const struct net_bridge_mdb_entry *mp,
				      struct net_device *orig_dev)
{ … }

void br_switchdev_mdb_notify(struct net_device *dev,
			     struct net_bridge_mdb_entry *mp,
			     struct net_bridge_port_group *pg,
			     int type)
{ … }
#endif

static int
br_switchdev_mdb_replay(struct net_device *br_dev, struct net_device *dev,
			const void *ctx, bool adding, struct notifier_block *nb,
			struct netlink_ext_ack *extack)
{ … }

static int nbp_switchdev_sync_objs(struct net_bridge_port *p, const void *ctx,
				   struct notifier_block *atomic_nb,
				   struct notifier_block *blocking_nb,
				   struct netlink_ext_ack *extack)
{ … }

static void nbp_switchdev_unsync_objs(struct net_bridge_port *p,
				      const void *ctx,
				      struct notifier_block *atomic_nb,
				      struct notifier_block *blocking_nb)
{ … }

/* Let the bridge know that this port is offloaded, so that it can assign a
 * switchdev hardware domain to it.
 */
int br_switchdev_port_offload(struct net_bridge_port *p,
			      struct net_device *dev, const void *ctx,
			      struct notifier_block *atomic_nb,
			      struct notifier_block *blocking_nb,
			      bool tx_fwd_offload,
			      struct netlink_ext_ack *extack)
{ … }

void br_switchdev_port_unoffload(struct net_bridge_port *p, const void *ctx,
				 struct notifier_block *atomic_nb,
				 struct notifier_block *blocking_nb)
{ … }

int br_switchdev_port_replay(struct net_bridge_port *p,
			     struct net_device *dev, const void *ctx,
			     struct notifier_block *atomic_nb,
			     struct notifier_block *blocking_nb,
			     struct netlink_ext_ack *extack)
{ … }
linux/net/bridge/br_switchdev.c
