--- /dev/null
+--- a/include/linux/if_bridge.h
++++ b/include/linux/if_bridge.h
+@@ -57,6 +57,7 @@ struct br_ip_list {
+ #define BR_MRP_LOST_CONT BIT(18)
+ #define BR_MRP_LOST_IN_CONT BIT(19)
+ #define BR_BPDU_FILTER BIT(20)
++#define BR_OFFLOAD BIT(21)
+
+ #define BR_DEFAULT_AGEING_TIME (300 * HZ)
+
+--- a/net/bridge/Makefile
++++ b/net/bridge/Makefile
+@@ -5,7 +5,7 @@
+
+ obj-$(CONFIG_BRIDGE) += bridge.o
+
+-bridge-y := br.o br_device.o br_fdb.o br_forward.o br_if.o br_input.o \
++bridge-y := br.o br_device.o br_fdb.o br_forward.o br_if.o br_input.o br_offload.o \
+ br_ioctl.o br_stp.o br_stp_bpdu.o \
+ br_stp_if.o br_stp_timer.o br_netlink.o \
+ br_netlink_tunnel.o br_arp_nd_proxy.o
+--- a/net/bridge/br.c
++++ b/net/bridge/br.c
+@@ -18,6 +18,7 @@
+ #include <net/switchdev.h>
+
+ #include "br_private.h"
++#include "br_private_offload.h"
+
+ /*
+ * Handle changes in state of network devices enslaved to a bridge.
+@@ -332,6 +333,10 @@ static int __init br_init(void)
+ if (err)
+ goto err_out;
+
++ err = br_offload_init();
++ if (err)
++ goto err_out0;
++
+ err = register_pernet_subsys(&br_net_ops);
+ if (err)
+ goto err_out1;
+@@ -375,6 +380,8 @@ err_out3:
+ err_out2:
+ unregister_pernet_subsys(&br_net_ops);
+ err_out1:
++ br_offload_fini();
++err_out0:
+ br_fdb_fini();
+ err_out:
+ stp_proto_unregister(&br_stp_proto);
+@@ -396,6 +403,7 @@ static void __exit br_deinit(void)
+ #if IS_ENABLED(CONFIG_ATM_LANE)
+ br_fdb_test_addr_hook = NULL;
+ #endif
++ br_offload_fini();
+ br_fdb_fini();
+ }
+
+--- a/net/bridge/br_device.c
++++ b/net/bridge/br_device.c
+@@ -529,6 +529,8 @@ void br_dev_setup(struct net_device *dev
+ br->bridge_hello_time = br->hello_time = 2 * HZ;
+ br->bridge_forward_delay = br->forward_delay = 15 * HZ;
+ br->bridge_ageing_time = br->ageing_time = BR_DEFAULT_AGEING_TIME;
++ br->offload_cache_size = 128;
++ br->offload_cache_reserved = 8;
+ dev->max_mtu = ETH_MAX_MTU;
+
+ br_netfilter_rtable_init(br);
+--- a/net/bridge/br_fdb.c
++++ b/net/bridge/br_fdb.c
+@@ -23,6 +23,7 @@
+ #include <net/switchdev.h>
+ #include <trace/events/bridge.h>
+ #include "br_private.h"
++#include "br_private_offload.h"
+
+ static const struct rhashtable_params br_fdb_rht_params = {
+ .head_offset = offsetof(struct net_bridge_fdb_entry, rhnode),
+@@ -513,6 +514,8 @@ static struct net_bridge_fdb_entry *fdb_
+ fdb->key.vlan_id = vid;
+ fdb->flags = flags;
+ fdb->updated = fdb->used = jiffies;
++ INIT_HLIST_HEAD(&fdb->offload_in);
++ INIT_HLIST_HEAD(&fdb->offload_out);
+ if (rhashtable_lookup_insert_fast(&br->fdb_hash_tbl,
+ &fdb->rhnode,
+ br_fdb_rht_params)) {
+@@ -734,6 +737,8 @@ static void fdb_notify(struct net_bridge
+ struct sk_buff *skb;
+ int err = -ENOBUFS;
+
++ br_offload_fdb_update(fdb);
++
+ if (swdev_notify)
+ br_switchdev_fdb_notify(br, fdb, type);
+
+--- a/net/bridge/br_forward.c
++++ b/net/bridge/br_forward.c
+@@ -16,6 +16,7 @@
+ #include <linux/if_vlan.h>
+ #include <linux/netfilter_bridge.h>
+ #include "br_private.h"
++#include "br_private_offload.h"
+
+ /* Don't forward packets to originating port or forwarding disabled */
+ static inline int should_deliver(const struct net_bridge_port *p,
+@@ -32,6 +33,8 @@ static inline int should_deliver(const s
+
+ int br_dev_queue_push_xmit(struct net *net, struct sock *sk, struct sk_buff *skb)
+ {
++ br_offload_output(skb);
++
+ skb_push(skb, ETH_HLEN);
+ if (!is_skb_forwardable(skb->dev, skb))
+ goto drop;
+--- a/net/bridge/br_if.c
++++ b/net/bridge/br_if.c
+@@ -25,6 +25,7 @@
+ #include <net/net_namespace.h>
+
+ #include "br_private.h"
++#include "br_private_offload.h"
+
+ /*
+ * Determine initial path cost based on speed.
+@@ -427,7 +428,7 @@ static struct net_bridge_port *new_nbp(s
+ p->path_cost = port_cost(dev);
+ p->priority = 0x8000 >> BR_PORT_BITS;
+ p->port_no = index;
+- p->flags = BR_LEARNING | BR_FLOOD | BR_MCAST_FLOOD | BR_BCAST_FLOOD;
++ p->flags = BR_LEARNING | BR_FLOOD | BR_MCAST_FLOOD | BR_BCAST_FLOOD | BR_OFFLOAD;
+ br_init_port(p);
+ br_set_state(p, BR_STATE_DISABLED);
+ br_stp_port_timer_init(p);
+@@ -777,6 +778,9 @@ void br_port_flags_change(struct net_bri
+
+ if (mask & BR_NEIGH_SUPPRESS)
+ br_recalculate_neigh_suppress_enabled(br);
++
++ if (mask & BR_OFFLOAD)
++ br_offload_port_state(p);
+ }
+
+ bool br_port_flag_is_set(const struct net_device *dev, unsigned long flag)
+--- a/net/bridge/br_input.c
++++ b/net/bridge/br_input.c
+@@ -22,6 +22,7 @@
+ #include <linux/rculist.h>
+ #include "br_private.h"
+ #include "br_private_tunnel.h"
++#include "br_private_offload.h"
+
+ static int
+ br_netif_receive_skb(struct net *net, struct sock *sk, struct sk_buff *skb)
+@@ -162,6 +163,7 @@ int br_handle_frame_finish(struct net *n
+ dst->used = now;
+ br_forward(dst->dst, skb, local_rcv, false);
+ } else {
++ br_offload_skb_disable(skb);
+ if (!mcast_hit)
+ br_flood(br, skb, pkt_type, local_rcv, false);
+ else
+@@ -280,6 +282,9 @@ static rx_handler_result_t br_handle_fra
+ memset(skb->cb, 0, sizeof(struct br_input_skb_cb));
+
+ p = br_port_get_rcu(skb->dev);
++ if (br_offload_input(p, skb))
++ return RX_HANDLER_CONSUMED;
++
+ if (p->flags & BR_VLAN_TUNNEL) {
+ if (br_handle_ingress_vlan_tunnel(skb, p,
+ nbp_vlan_group_rcu(p)))
+--- /dev/null
++++ b/net/bridge/br_offload.c
+@@ -0,0 +1,436 @@
++// SPDX-License-Identifier: GPL-2.0-only
++#include <linux/kernel.h>
++#include <linux/workqueue.h>
++#include "br_private.h"
++#include "br_private_offload.h"
++
++static DEFINE_SPINLOCK(offload_lock);
++
++struct bridge_flow_key {
++ u8 dest[ETH_ALEN];
++ u8 src[ETH_ALEN];
++#ifdef CONFIG_BRIDGE_VLAN_FILTERING
++ u16 vlan_tag;
++ bool vlan_present;
++#endif
++};
++
++struct bridge_flow {
++ struct net_bridge_port *port;
++ struct rhash_head node;
++ struct bridge_flow_key key;
++#ifdef CONFIG_BRIDGE_VLAN_FILTERING
++ bool vlan_out_present;
++ u16 vlan_out;
++#endif
++
++ unsigned long used;
++ struct net_bridge_fdb_entry *fdb_in, *fdb_out;
++ struct hlist_node fdb_list_in, fdb_list_out;
++
++ struct rcu_head rcu;
++};
++
++static const struct rhashtable_params flow_params = {
++ .automatic_shrinking = true,
++ .head_offset = offsetof(struct bridge_flow, node),
++ .key_len = sizeof(struct bridge_flow_key),
++ .key_offset = offsetof(struct bridge_flow, key),
++};
++
++static struct kmem_cache *offload_cache __read_mostly;
++
++static void
++flow_rcu_free(struct rcu_head *head)
++{
++ struct bridge_flow *flow;
++
++ flow = container_of(head, struct bridge_flow, rcu);
++ kmem_cache_free(offload_cache, flow);
++}
++
++static void
++__br_offload_flow_free(struct bridge_flow *flow)
++{
++ flow->used = 0;
++ hlist_del(&flow->fdb_list_in);
++ hlist_del(&flow->fdb_list_out);
++
++ call_rcu(&flow->rcu, flow_rcu_free);
++}
++
++static void
++br_offload_flow_free(struct bridge_flow *flow)
++{
++ if (rhashtable_remove_fast(&flow->port->offload.rht, &flow->node,
++ flow_params) != 0)
++ return;
++
++ __br_offload_flow_free(flow);
++}
++
++static bool
++br_offload_flow_fdb_refresh_time(struct bridge_flow *flow,
++ struct net_bridge_fdb_entry *fdb)
++{
++ if (!time_after(flow->used, fdb->updated))
++ return false;
++
++ fdb->updated = flow->used;
++
++ return true;
++}
++
++
++static void
++br_offload_flow_refresh_time(struct bridge_flow *flow)
++{
++ br_offload_flow_fdb_refresh_time(flow, flow->fdb_in);
++ br_offload_flow_fdb_refresh_time(flow, flow->fdb_out);
++}
++
++static void
++br_offload_destroy_cb(void *ptr, void *arg)
++{
++ struct bridge_flow *flow = ptr;
++
++ __br_offload_flow_free(flow);
++}
++
++static bool
++br_offload_need_gc(struct net_bridge_port *p)
++{
++ return (atomic_read(&p->offload.rht.nelems) +
++ p->br->offload_cache_reserved) >= p->br->offload_cache_size;
++}
++
++static void
++br_offload_gc_work(struct work_struct *work)
++{
++ struct rhashtable_iter hti;
++ struct net_bridge_port *p;
++ struct bridge_flow *gc_flow = NULL;
++ struct bridge_flow *flow;
++ unsigned long gc_used;
++
++ p = container_of(work, struct net_bridge_port, offload.gc_work);
++
++ if (!br_offload_need_gc(p))
++ return;
++
++ rhashtable_walk_enter(&p->offload.rht, &hti);
++ rhashtable_walk_start(&hti);
++ while ((flow = rhashtable_walk_next(&hti)) != NULL) {
++ unsigned long used;
++
++ if (IS_ERR(flow))
++ continue;
++
++ used = READ_ONCE(flow->used);
++ if (!used)
++ continue;
++
++ if (gc_flow && !time_before(used, gc_used))
++ continue;
++
++ gc_flow = flow;
++ gc_used = used;
++ }
++ rhashtable_walk_stop(&hti);
++ rhashtable_walk_exit(&hti);
++
++ if (!gc_flow)
++ return;
++
++ spin_lock_bh(&offload_lock);
++ if (br_offload_need_gc(p) && gc_flow &&
++ gc_flow->used == gc_used)
++ br_offload_flow_free(gc_flow);
++ if (p->offload.enabled && br_offload_need_gc(p))
++ queue_work(system_long_wq, work);
++ spin_unlock_bh(&offload_lock);
++
++}
++
++void br_offload_port_state(struct net_bridge_port *p)
++{
++ struct net_bridge_port_offload *o = &p->offload;
++ bool enabled = true;
++ bool flush = false;
++
++ if (p->state != BR_STATE_FORWARDING ||
++ !(p->flags & BR_OFFLOAD))
++ enabled = false;
++
++ spin_lock_bh(&offload_lock);
++ if (o->enabled == enabled)
++ goto out;
++
++ if (enabled) {
++ if (!o->gc_work.func)
++ INIT_WORK(&o->gc_work, br_offload_gc_work);
++ rhashtable_init(&o->rht, &flow_params);
++ } else {
++ flush = true;
++ rhashtable_free_and_destroy(&o->rht, br_offload_destroy_cb, o);
++ }
++
++ o->enabled = enabled;
++
++out:
++ spin_unlock_bh(&offload_lock);
++
++ if (flush)
++ flush_work(&o->gc_work);
++}
++
++void br_offload_fdb_update(const struct net_bridge_fdb_entry *fdb)
++{
++ struct bridge_flow *f;
++ struct hlist_node *tmp;
++
++ spin_lock_bh(&offload_lock);
++
++ hlist_for_each_entry_safe(f, tmp, &fdb->offload_in, fdb_list_in)
++ br_offload_flow_free(f);
++
++ hlist_for_each_entry_safe(f, tmp, &fdb->offload_out, fdb_list_out)
++ br_offload_flow_free(f);
++
++ spin_unlock_bh(&offload_lock);
++}
++
++static void
++br_offload_prepare_key(struct net_bridge_port *p, struct bridge_flow_key *key,
++ struct sk_buff *skb)
++{
++ memset(key, 0, sizeof(*key));
++ memcpy(key, eth_hdr(skb), 2 * ETH_ALEN);
++#ifdef CONFIG_BRIDGE_VLAN_FILTERING
++ if (!br_opt_get(p->br, BROPT_VLAN_ENABLED))
++ return;
++
++ if (!skb_vlan_tag_present(skb) || skb->vlan_proto != p->br->vlan_proto)
++ return;
++
++ key->vlan_present = true;
++ key->vlan_tag = skb_vlan_tag_get_id(skb);
++#endif
++}
++
++void br_offload_output(struct sk_buff *skb)
++{
++ struct net_bridge_port_offload *o;
++ struct br_input_skb_cb *cb = (struct br_input_skb_cb *)skb->cb;
++ struct net_bridge_port *p, *inp;
++ struct net_device *dev;
++ struct net_bridge_fdb_entry *fdb_in, *fdb_out;
++ struct net_bridge_vlan_group *vg;
++ struct bridge_flow_key key;
++ struct bridge_flow *flow;
++ u16 vlan;
++
++ if (!cb->offload)
++ return;
++
++ rcu_read_lock();
++
++ p = br_port_get_rcu(skb->dev);
++ if (!p)
++ goto out;
++
++ o = &p->offload;
++ if (!o->enabled)
++ goto out;
++
++ if (atomic_read(&p->offload.rht.nelems) >= p->br->offload_cache_size)
++ goto out;
++
++ dev = dev_get_by_index_rcu(dev_net(p->br->dev), cb->input_ifindex);
++ if (!dev)
++ goto out;
++
++ inp = br_port_get_rcu(dev);
++ if (!p)
++ goto out;
++
++ vg = nbp_vlan_group_rcu(inp);
++ vlan = cb->input_vlan_present ? cb->input_vlan_tag : br_get_pvid(vg);
++ fdb_in = br_fdb_find_rcu(p->br, eth_hdr(skb)->h_source, vlan);
++ if (!fdb_in)
++ goto out;
++
++ vg = nbp_vlan_group_rcu(p);
++ vlan = skb_vlan_tag_present(skb) ? skb_vlan_tag_get_id(skb) : br_get_pvid(vg);
++ fdb_out = br_fdb_find_rcu(p->br, eth_hdr(skb)->h_dest, vlan);
++ if (!fdb_out)
++ goto out;
++
++ br_offload_prepare_key(p, &key, skb);
++#ifdef CONFIG_BRIDGE_VLAN_FILTERING
++ key.vlan_present = cb->input_vlan_present;
++ key.vlan_tag = cb->input_vlan_tag;
++#endif
++
++ flow = kmem_cache_alloc(offload_cache, GFP_ATOMIC);
++ flow->port = fdb_in->dst;
++ memcpy(&flow->key, &key, sizeof(key));
++
++#ifdef CONFIG_BRIDGE_VLAN_FILTERING
++ flow->vlan_out_present = skb_vlan_tag_present(skb);
++ flow->vlan_out = skb_vlan_tag_get(skb);
++#endif
++
++ flow->fdb_in = fdb_in;
++ flow->fdb_out = fdb_out;
++ flow->used = jiffies;
++
++ spin_lock_bh(&offload_lock);
++ if (!o->enabled ||
++ atomic_read(&p->offload.rht.nelems) >= p->br->offload_cache_size ||
++ rhashtable_insert_fast(&flow->port->offload.rht, &flow->node, flow_params)) {
++ kmem_cache_free(offload_cache, flow);
++ goto out_unlock;
++ }
++
++ hlist_add_head(&flow->fdb_list_in, &fdb_in->offload_in);
++ hlist_add_head(&flow->fdb_list_out, &fdb_out->offload_out);
++
++ if (br_offload_need_gc(p))
++ queue_work(system_long_wq, &p->offload.gc_work);
++
++out_unlock:
++ spin_unlock_bh(&offload_lock);
++
++out:
++ rcu_read_unlock();
++}
++
++bool br_offload_input(struct net_bridge_port *p, struct sk_buff *skb)
++{
++ struct net_bridge_port_offload *o = &p->offload;
++ struct br_input_skb_cb *cb = (struct br_input_skb_cb *)skb->cb;
++ struct bridge_flow_key key;
++ struct net_bridge_port *dst;
++ struct bridge_flow *flow;
++ unsigned long now = jiffies;
++ bool ret = false;
++
++ if (skb->len < sizeof(key))
++ return false;
++
++ if (!o->enabled)
++ return false;
++
++ if (is_multicast_ether_addr(eth_hdr(skb)->h_dest))
++ return false;
++
++ br_offload_prepare_key(p, &key, skb);
++
++ rcu_read_lock();
++ flow = rhashtable_lookup(&o->rht, &key, flow_params);
++ if (!flow) {
++ cb->offload = 1;
++#ifdef CONFIG_BRIDGE_VLAN_FILTERING
++ cb->input_vlan_present = key.vlan_present != 0;
++ cb->input_vlan_tag = key.vlan_tag;
++ cb->input_ifindex = p->dev->ifindex;
++#endif
++ goto out;
++ }
++
++ if (flow->fdb_in->dst != p)
++ goto out;
++
++ dst = flow->fdb_out->dst;
++ if (!dst)
++ goto out;
++
++ ret = true;
++#ifdef CONFIG_BRIDGE_VLAN_FILTERING
++ if (!flow->vlan_out_present && key.vlan_present) {
++ __vlan_hwaccel_clear_tag(skb);
++ } else if (flow->vlan_out_present) {
++ if (skb_vlan_tag_present(skb) &&
++ skb->vlan_proto != p->br->vlan_proto) {
++ /* Protocol-mismatch, empty out vlan_tci for new tag */
++ skb_push(skb, ETH_HLEN);
++ skb = vlan_insert_tag_set_proto(skb, skb->vlan_proto,
++ skb_vlan_tag_get(skb));
++ if (unlikely(!skb))
++ goto out;
++
++ skb_pull(skb, ETH_HLEN);
++ skb_reset_mac_len(skb);
++ }
++
++ __vlan_hwaccel_put_tag(skb, p->br->vlan_proto,
++ flow->vlan_out);
++ }
++#endif
++
++ skb->dev = dst->dev;
++ skb_push(skb, ETH_HLEN);
++
++ if (skb_warn_if_lro(skb) || !is_skb_forwardable(skb->dev, skb)) {
++ kfree_skb(skb);
++ goto out;
++ }
++
++ if (now - flow->used >= HZ) {
++ flow->used = now;
++ br_offload_flow_refresh_time(flow);
++ }
++
++ skb_forward_csum(skb);
++ dev_queue_xmit(skb);
++
++out:
++ rcu_read_unlock();
++ return ret;
++}
++
++static void
++br_offload_check_gc(struct net_bridge *br)
++{
++ struct net_bridge_port *p;
++
++ spin_lock_bh(&br->lock);
++ list_for_each_entry(p, &br->port_list, list)
++ if (br_offload_need_gc(p))
++ queue_work(system_long_wq, &p->offload.gc_work);
++ spin_unlock_bh(&br->lock);
++}
++
++
++int br_offload_set_cache_size(struct net_bridge *br, unsigned long val)
++{
++ br->offload_cache_size = val;
++ br_offload_check_gc(br);
++
++ return 0;
++}
++
++int br_offload_set_cache_reserved(struct net_bridge *br, unsigned long val)
++{
++ br->offload_cache_reserved = val;
++ br_offload_check_gc(br);
++
++ return 0;
++}
++
++int __init br_offload_init(void)
++{
++ offload_cache = kmem_cache_create("bridge_offload_cache",
++ sizeof(struct bridge_flow),
++ 0, SLAB_HWCACHE_ALIGN, NULL);
++ if (!offload_cache)
++ return -ENOMEM;
++
++ return 0;
++}
++
++void br_offload_fini(void)
++{
++ kmem_cache_destroy(offload_cache);
++}
+--- a/net/bridge/br_private.h
++++ b/net/bridge/br_private.h
+@@ -207,7 +207,13 @@ struct net_bridge_fdb_entry {
+ unsigned long updated ____cacheline_aligned_in_smp;
+ unsigned long used;
+
+- struct rcu_head rcu;
++ union {
++ struct {
++ struct hlist_head offload_in;
++ struct hlist_head offload_out;
++ };
++ struct rcu_head rcu;
++ };
+ };
+
+ #define MDB_PG_FLAGS_PERMANENT BIT(0)
+@@ -280,6 +286,12 @@ struct net_bridge_mdb_entry {
+ struct rcu_head rcu;
+ };
+
++struct net_bridge_port_offload {
++ struct rhashtable rht;
++ struct work_struct gc_work;
++ bool enabled;
++};
++
+ struct net_bridge_port {
+ struct net_bridge *br;
+ struct net_device *dev;
+@@ -337,6 +349,7 @@ struct net_bridge_port {
+ u16 backup_redirected_cnt;
+
+ struct bridge_stp_xstats stp_xstats;
++ struct net_bridge_port_offload offload;
+ };
+
+ #define kobj_to_brport(obj) container_of(obj, struct net_bridge_port, kobj)
+@@ -475,6 +488,9 @@ struct net_bridge {
+ struct kobject *ifobj;
+ u32 auto_cnt;
+
++ u32 offload_cache_size;
++ u32 offload_cache_reserved;
++
+ #ifdef CONFIG_NET_SWITCHDEV
+ int offload_fwd_mark;
+ #endif
+@@ -501,6 +517,10 @@ struct br_input_skb_cb {
+ #ifdef CONFIG_NETFILTER_FAMILY_BRIDGE
+ u8 br_netfilter_broute:1;
+ #endif
++ u8 offload:1;
++ u8 input_vlan_present:1;
++ u16 input_vlan_tag;
++ int input_ifindex;
+
+ #ifdef CONFIG_NET_SWITCHDEV
+ int offload_fwd_mark;
+--- /dev/null
++++ b/net/bridge/br_private_offload.h
+@@ -0,0 +1,21 @@
++#ifndef __BR_OFFLOAD_H
++#define __BR_OFFLOAD_H
++
++bool br_offload_input(struct net_bridge_port *p, struct sk_buff *skb);
++void br_offload_output(struct sk_buff *skb);
++void br_offload_port_state(struct net_bridge_port *p);
++void br_offload_fdb_update(const struct net_bridge_fdb_entry *fdb);
++int br_offload_init(void);
++void br_offload_fini(void);
++int br_offload_set_cache_size(struct net_bridge *br, unsigned long val);
++int br_offload_set_cache_reserved(struct net_bridge *br, unsigned long val);
++
++static inline void br_offload_skb_disable(struct sk_buff *skb)
++{
++ struct br_input_skb_cb *cb = (struct br_input_skb_cb *)skb->cb;
++
++ if (cb->offload)
++ cb->offload = 0;
++}
++
++#endif
+--- a/net/bridge/br_stp.c
++++ b/net/bridge/br_stp.c
+@@ -12,6 +12,7 @@
+
+ #include "br_private.h"
+ #include "br_private_stp.h"
++#include "br_private_offload.h"
+
+ /* since time values in bpdu are in jiffies and then scaled (1/256)
+ * before sending, make sure that is at least one STP tick.
+@@ -52,6 +53,8 @@ void br_set_state(struct net_bridge_port
+ (unsigned int) p->port_no, p->dev->name,
+ br_port_state_names[p->state]);
+
++ br_offload_port_state(p);
++
+ if (p->br->stp_enabled == BR_KERNEL_STP) {
+ switch (p->state) {
+ case BR_STATE_BLOCKING:
+--- a/net/bridge/br_sysfs_br.c
++++ b/net/bridge/br_sysfs_br.c
+@@ -18,6 +18,7 @@
+ #include <linux/sched/signal.h>
+
+ #include "br_private.h"
++#include "br_private_offload.h"
+
+ #define to_bridge(cd) ((struct net_bridge *)netdev_priv(to_net_dev(cd)))
+
+@@ -842,6 +843,38 @@ static ssize_t vlan_stats_per_port_store
+ static DEVICE_ATTR_RW(vlan_stats_per_port);
+ #endif
+
++static ssize_t offload_cache_size_show(struct device *d,
++ struct device_attribute *attr,
++ char *buf)
++{
++ struct net_bridge *br = to_bridge(d);
++ return sprintf(buf, "%u\n", br->offload_cache_size);
++}
++
++static ssize_t offload_cache_size_store(struct device *d,
++ struct device_attribute *attr,
++ const char *buf, size_t len)
++{
++ return store_bridge_parm(d, buf, len, br_offload_set_cache_size);
++}
++static DEVICE_ATTR_RW(offload_cache_size);
++
++static ssize_t offload_cache_reserved_show(struct device *d,
++ struct device_attribute *attr,
++ char *buf)
++{
++ struct net_bridge *br = to_bridge(d);
++ return sprintf(buf, "%u\n", br->offload_cache_reserved);
++}
++
++static ssize_t offload_cache_reserved_store(struct device *d,
++ struct device_attribute *attr,
++ const char *buf, size_t len)
++{
++ return store_bridge_parm(d, buf, len, br_offload_set_cache_reserved);
++}
++static DEVICE_ATTR_RW(offload_cache_reserved);
++
+ static struct attribute *bridge_attrs[] = {
+ &dev_attr_forward_delay.attr,
+ &dev_attr_hello_time.attr,
+@@ -896,6 +929,8 @@ static struct attribute *bridge_attrs[]
+ &dev_attr_vlan_stats_enabled.attr,
+ &dev_attr_vlan_stats_per_port.attr,
+ #endif
++ &dev_attr_offload_cache_size.attr,
++ &dev_attr_offload_cache_reserved.attr,
+ NULL
+ };
+
+--- a/net/bridge/br_sysfs_if.c
++++ b/net/bridge/br_sysfs_if.c
+@@ -234,6 +234,7 @@ BRPORT_ATTR_FLAG(broadcast_flood, BR_BCA
+ BRPORT_ATTR_FLAG(neigh_suppress, BR_NEIGH_SUPPRESS);
+ BRPORT_ATTR_FLAG(isolated, BR_ISOLATED);
+ BRPORT_ATTR_FLAG(bpdu_filter, BR_BPDU_FILTER);
++BRPORT_ATTR_FLAG(offload, BR_OFFLOAD);
+
+ #ifdef CONFIG_BRIDGE_IGMP_SNOOPING
+ static ssize_t show_multicast_router(struct net_bridge_port *p, char *buf)
+@@ -288,6 +289,7 @@ static const struct brport_attribute *br
+ &brport_attr_isolated,
+ &brport_attr_bpdu_filter,
+ &brport_attr_backup_port,
++ &brport_attr_offload,
+ NULL
+ };
+
+--- a/net/bridge/br_vlan_tunnel.c
++++ b/net/bridge/br_vlan_tunnel.c
+@@ -15,6 +15,7 @@
+
+ #include "br_private.h"
+ #include "br_private_tunnel.h"
++#include "br_private_offload.h"
+
+ static inline int br_vlan_tunid_cmp(struct rhashtable_compare_arg *arg,
+ const void *ptr)
+@@ -180,6 +181,7 @@ int br_handle_ingress_vlan_tunnel(struct
+ skb_dst_drop(skb);
+
+ __vlan_hwaccel_put_tag(skb, p->br->vlan_proto, vlan->vid);
++ br_offload_skb_disable(skb);
+
+ return 0;
+ }
+@@ -203,6 +205,7 @@ int br_handle_egress_vlan_tunnel(struct
+ if (err)
+ return err;
+
++ br_offload_skb_disable(skb);
+ tunnel_dst = rcu_dereference(vlan->tinfo.tunnel_dst);
+ if (tunnel_dst && dst_hold_safe(&tunnel_dst->dst))
+ skb_dst_set(skb, &tunnel_dst->dst);
projects / openwrt / openwrt.git / commitdiff