Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next

Pull networking updates from David Miller:
 "Highlights:

   1) Support TX_RING in AF_PACKET TPACKET_V3 mode, from Sowmini
      Varadhan.

   2) Simplify classifier state on sk_buff in order to shrink it a bit.
      From Willem de Bruijn.

   3) Introduce SIPHASH and it's usage for secure sequence numbers and
      syncookies. From Jason A. Donenfeld.

   4) Reduce CPU usage for ICMP replies we are going to limit or
      suppress, from Jesper Dangaard Brouer.

   5) Introduce Shared Memory Communications socket layer, from Ursula
      Braun.

   6) Add RACK loss detection and allow it to actually trigger fast
      recovery instead of just assisting after other algorithms have
      triggered it. From Yuchung Cheng.

   7) Add xmit_more and BQL support to mvneta driver, from Simon Guinot.

   8) skb_cow_data avoidance in esp4 and esp6, from Steffen Klassert.

   9) Export MPLS packet stats via netlink, from Robert Shearman.

  10) Significantly improve inet port bind conflict handling, especially
      when an application is restarted and changes it's setting of
      reuseport. From Josef Bacik.

  11) Implement TX batching in vhost_net, from Jason Wang.

  12) Extend the dummy device so that VF (virtual function) features,
      such as configuration, can be more easily tested. From Phil
      Sutter.

  13) Avoid two atomic ops per page on x86 in bnx2x driver, from Eric
      Dumazet.

  14) Add new bpf MAP, implementing a longest prefix match trie. From
      Daniel Mack.

  15) Packet sample offloading support in mlxsw driver, from Yotam Gigi.

  16) Add new aquantia driver, from David VomLehn.

  17) Add bpf tracepoints, from Daniel Borkmann.

  18) Add support for port mirroring to b53 and bcm_sf2 drivers, from
      Florian Fainelli.

  19) Remove custom busy polling in many drivers, it is done in the core
      networking since 4.5 times. From Eric Dumazet.

  20) Support XDP adjust_head in virtio_net, from John Fastabend.

  21) Fix several major holes in neighbour entry confirmation, from
      Julian Anastasov.

  22) Add XDP support to bnxt_en driver, from Michael Chan.

  23) VXLAN offloads for enic driver, from Govindarajulu Varadarajan.

  24) Add IPVTAP driver (IP-VLAN based tap driver) from Sainath Grandhi.

  25) Support GRO in IPSEC protocols, from Steffen Klassert"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1764 commits)
  Revert "ath10k: Search SMBIOS for OEM board file extension"
  net: socket: fix recvmmsg not returning error from sock_error
  bnxt_en: use eth_hw_addr_random()
  bpf: fix unlocking of jited image when module ronx not set
  arch: add ARCH_HAS_SET_MEMORY config
  net: napi_watchdog() can use napi_schedule_irqoff()
  tcp: Revert "tcp: tcp_probe: use spin_lock_bh()"
  net/hsr: use eth_hw_addr_random()
  net: mvpp2: enable building on 64-bit platforms
  net: mvpp2: switch to build_skb() in the RX path
  net: mvpp2: simplify MVPP2_PRS_RI_* definitions
  net: mvpp2: fix indentation of MVPP2_EXT_GLOBAL_CTRL_DEFAULT
  net: mvpp2: remove unused register definitions
  net: mvpp2: simplify mvpp2_bm_bufs_add()
  net: mvpp2: drop useless fields in mvpp2_bm_pool and related code
  net: mvpp2: remove unused 'tx_skb' field of 'struct mvpp2_tx_queue'
  net: mvpp2: release reference to txq_cpu[] entry after unmapping
  net: mvpp2: handle too large value in mvpp2_rx_time_coal_set()
  net: mvpp2: handle too large value handling in mvpp2_rx_pkts_coal_set()
  net: mvpp2: remove useless arguments in mvpp2_rx_{pkts, time}_coal_set
  ...

1 files changed, 54 insertions, 32 deletions

diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h
index 8ce621e8..2288fca 100644
--- a/net/bridge/br_private.h
+++ b/net/bridge/br_private.h
@@ -91,6 +91,11 @@ struct br_vlan_stats {
 	struct u64_stats_sync syncp;
 };
 
+struct br_tunnel_info {
+	__be64			tunnel_id;
+	struct metadata_dst	*tunnel_dst;
+};
+
 /**
  * struct net_bridge_vlan - per-vlan entry
  *
@@ -113,6 +118,7 @@ struct br_vlan_stats {
  */
 struct net_bridge_vlan {
 	struct rhash_head		vnode;
+	struct rhash_head		tnode;
 	u16				vid;
 	u16				flags;
 	struct br_vlan_stats __percpu	*stats;
@@ -124,6 +130,9 @@ struct net_bridge_vlan {
 		atomic_t		refcnt;
 		struct net_bridge_vlan	*brvlan;
 	};
+
+	struct br_tunnel_info		tinfo;
+
 	struct list_head		vlist;
 
 	struct rcu_head			rcu;
@@ -145,24 +154,27 @@ struct net_bridge_vlan {
  */
 struct net_bridge_vlan_group {
 	struct rhashtable		vlan_hash;
+	struct rhashtable		tunnel_hash;
 	struct list_head		vlan_list;
 	u16				num_vlans;
 	u16				pvid;
 };
 
-struct net_bridge_fdb_entry
-{
+struct net_bridge_fdb_entry {
 	struct hlist_node		hlist;
 	struct net_bridge_port		*dst;
 
-	unsigned long			updated;
-	unsigned long			used;
 	mac_addr			addr;
 	__u16				vlan_id;
 	unsigned char			is_local:1,
 					is_static:1,
 					added_by_user:1,
 					added_by_external_learn:1;
+
+	/* write-heavy members should not affect lookups */
+	unsigned long			updated ____cacheline_aligned_in_smp;
+	unsigned long			used;
+
 	struct rcu_head			rcu;
 };
 
@@ -177,6 +189,7 @@ struct net_bridge_port_group {
 	struct timer_list		timer;
 	struct br_ip			addr;
 	unsigned char			flags;
+	unsigned char			eth_addr[ETH_ALEN];
 };
 
 struct net_bridge_mdb_entry
@@ -201,12 +214,16 @@ struct net_bridge_mdb_htable
 	u32				ver;
 };
 
-struct net_bridge_port
-{
+struct net_bridge_port {
 	struct net_bridge		*br;
 	struct net_device		*dev;
 	struct list_head		list;
 
+	unsigned long			flags;
+#ifdef CONFIG_BRIDGE_VLAN_FILTERING
+	struct net_bridge_vlan_group	__rcu *vlgrp;
+#endif
+
 	/* STP */
 	u8				priority;
 	u8				state;
@@ -227,8 +244,6 @@ struct net_bridge_port
 	struct kobject			kobj;
 	struct rcu_head			rcu;
 
-	unsigned long 			flags;
-
 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING
 	struct bridge_mcast_own_query	ip4_own_query;
 #if IS_ENABLED(CONFIG_IPV6)
@@ -248,9 +263,6 @@ struct net_bridge_port
 #ifdef CONFIG_NET_POLL_CONTROLLER
 	struct netpoll			*np;
 #endif
-#ifdef CONFIG_BRIDGE_VLAN_FILTERING
-	struct net_bridge_vlan_group	__rcu *vlgrp;
-#endif
 #ifdef CONFIG_NET_SWITCHDEV
 	int				offload_fwd_mark;
 #endif
@@ -272,14 +284,21 @@ static inline struct net_bridge_port *br_port_get_rtnl(const struct net_device *
 		rtnl_dereference(dev->rx_handler_data) : NULL;
 }
 
-struct net_bridge
-{
+struct net_bridge {
 	spinlock_t			lock;
+	spinlock_t			hash_lock;
 	struct list_head		port_list;
 	struct net_device		*dev;
-
 	struct pcpu_sw_netstats		__percpu *stats;
-	spinlock_t			hash_lock;
+	/* These fields are accessed on each packet */
+#ifdef CONFIG_BRIDGE_VLAN_FILTERING
+	u8				vlan_enabled;
+	u8				vlan_stats_enabled;
+	__be16				vlan_proto;
+	u16				default_pvid;
+	struct net_bridge_vlan_group	__rcu *vlgrp;
+#endif
+
 	struct hlist_head		hash[BR_HASH_SIZE];
 #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER)
 	union {
@@ -297,6 +316,9 @@ struct net_bridge
 	bridge_id			designated_root;
 	bridge_id			bridge_id;
 	u32				root_path_cost;
+	unsigned char			topology_change;
+	unsigned char			topology_change_detected;
+	u16				root_port;
 	unsigned long			max_age;
 	unsigned long			hello_time;
 	unsigned long			forward_delay;
@@ -308,7 +330,6 @@ struct net_bridge
 
 	u8				group_addr[ETH_ALEN];
 	bool				group_addr_set;
-	u16				root_port;
 
 	enum {
 		BR_NO_STP, 		/* no spanning tree */
@@ -316,9 +337,6 @@ struct net_bridge
 		BR_USER_STP,		/* new RSTP in userspace */
 	} stp_enabled;
 
-	unsigned char			topology_change;
-	unsigned char			topology_change_detected;
-
 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING
 	unsigned char			multicast_router;
 
@@ -363,21 +381,13 @@ struct net_bridge
 	struct timer_list		hello_timer;
 	struct timer_list		tcn_timer;
 	struct timer_list		topology_change_timer;
-	struct timer_list		gc_timer;
+	struct delayed_work		gc_work;
 	struct kobject			*ifobj;
 	u32				auto_cnt;
 
 #ifdef CONFIG_NET_SWITCHDEV
 	int offload_fwd_mark;
 #endif
-
-#ifdef CONFIG_BRIDGE_VLAN_FILTERING
-	struct net_bridge_vlan_group	__rcu *vlgrp;
-	u8				vlan_enabled;
-	u8				vlan_stats_enabled;
-	__be16				vlan_proto;
-	u16				default_pvid;
-#endif
 };
 
 struct br_input_skb_cb {
@@ -494,11 +504,12 @@ void br_fdb_find_delete_local(struct net_bridge *br,
 			      const unsigned char *addr, u16 vid);
 void br_fdb_changeaddr(struct net_bridge_port *p, const unsigned char *newaddr);
 void br_fdb_change_mac_address(struct net_bridge *br, const u8 *newaddr);
-void br_fdb_cleanup(unsigned long arg);
+void br_fdb_cleanup(struct work_struct *work);
 void br_fdb_delete_by_port(struct net_bridge *br,
 			   const struct net_bridge_port *p, u16 vid, int do_all);
-struct net_bridge_fdb_entry *__br_fdb_get(struct net_bridge *br,
-					  const unsigned char *addr, __u16 vid);
+struct net_bridge_fdb_entry *br_fdb_find_rcu(struct net_bridge *br,
+					     const unsigned char *addr,
+					     __u16 vid);
 int br_fdb_test_addr(struct net_device *dev, unsigned char *addr);
 int br_fdb_fillbuf(struct net_bridge *br, void *buf, unsigned long count,
 		   unsigned long off);
@@ -520,6 +531,15 @@ int br_fdb_external_learn_add(struct net_bridge *br, struct net_bridge_port *p,
 int br_fdb_external_learn_del(struct net_bridge *br, struct net_bridge_port *p,
 			      const unsigned char *addr, u16 vid);
 
+static inline bool br_hash_lock_held(struct net_bridge *br)
+{
+#ifdef CONFIG_LOCKDEP
+	return lockdep_is_held(&br->hash_lock);
+#else
+	return true;
+#endif
+}
+
 /* br_forward.c */
 enum br_pkt_type {
 	BR_PKT_UNICAST,
@@ -599,7 +619,7 @@ void br_multicast_free_pg(struct rcu_head *head);
 struct net_bridge_port_group *
 br_multicast_new_port_group(struct net_bridge_port *port, struct br_ip *group,
 			    struct net_bridge_port_group __rcu *next,
-			    unsigned char flags);
+			    unsigned char flags, const unsigned char *src);
 void br_mdb_init(void);
 void br_mdb_uninit(void);
 void br_mdb_notify(struct net_device *dev, struct net_bridge_port *port,
@@ -764,6 +784,7 @@ bool br_allowed_egress(struct net_bridge_vlan_group *vg,
 		       const struct sk_buff *skb);
 bool br_should_learn(struct net_bridge_port *p, struct sk_buff *skb, u16 *vid);
 struct sk_buff *br_handle_vlan(struct net_bridge *br,
+			       const struct net_bridge_port *port,
 			       struct net_bridge_vlan_group *vg,
 			       struct sk_buff *skb);
 int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags);
@@ -863,6 +884,7 @@ static inline bool br_should_learn(struct net_bridge_port *p,
 }
 
 static inline struct sk_buff *br_handle_vlan(struct net_bridge *br,
+					     const struct net_bridge_port *port,
 					     struct net_bridge_vlan_group *vg,
 					     struct sk_buff *skb)
 {