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

Pull networking updates from David Miller:
 "Highlights:

   1) Support SPI based w5100 devices, from Akinobu Mita.

   2) Partial Segmentation Offload, from Alexander Duyck.

   3) Add GMAC4 support to stmmac driver, from Alexandre TORGUE.

   4) Allow cls_flower stats offload, from Amir Vadai.

   5) Implement bpf blinding, from Daniel Borkmann.

   6) Optimize _ASYNC_ bit twiddling on sockets, unless the socket is
      actually using FASYNC these atomics are superfluous.  From Eric
      Dumazet.

   7) Run TCP more preemptibly, also from Eric Dumazet.

   8) Support LED blinking, EEPROM dumps, and rxvlan offloading in mlx5e
      driver, from Gal Pressman.

   9) Allow creating ppp devices via rtnetlink, from Guillaume Nault.

  10) Improve BPF usage documentation, from Jesper Dangaard Brouer.

  11) Support tunneling offloads in qed, from Manish Chopra.

  12) aRFS offloading in mlx5e, from Maor Gottlieb.

  13) Add RFS and RPS support to SCTP protocol, from Marcelo Ricardo
      Leitner.

  14) Add MSG_EOR support to TCP, this allows controlling packet
      coalescing on application record boundaries for more accurate
      socket timestamp sampling.  From Martin KaFai Lau.

  15) Fix alignment of 64-bit netlink attributes across the board, from
      Nicolas Dichtel.

  16) Per-vlan stats in bridging, from Nikolay Aleksandrov.

  17) Several conversions of drivers to ethtool ksettings, from Philippe
      Reynes.

  18) Checksum neutral ILA in ipv6, from Tom Herbert.

  19) Factorize all of the various marvell dsa drivers into one, from
      Vivien Didelot

  20) Add VF support to qed driver, from Yuval Mintz"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1649 commits)
  Revert "phy dp83867: Fix compilation with CONFIG_OF_MDIO=m"
  Revert "phy dp83867: Make rgmii parameters optional"
  r8169: default to 64-bit DMA on recent PCIe chips
  phy dp83867: Make rgmii parameters optional
  phy dp83867: Fix compilation with CONFIG_OF_MDIO=m
  bpf: arm64: remove callee-save registers use for tmp registers
  asix: Fix offset calculation in asix_rx_fixup() causing slow transmissions
  switchdev: pass pointer to fib_info instead of copy
  net_sched: close another race condition in tcf_mirred_release()
  tipc: fix nametable publication field in nl compat
  drivers: net: Don't print unpopulated net_device name
  qed: add support for dcbx.
  ravb: Add missing free_irq() calls to ravb_close()
  qed: Remove a stray tab
  net: ethernet: fec-mpc52xx: use phy_ethtool_{get|set}_link_ksettings
  net: ethernet: fec-mpc52xx: use phydev from struct net_device
  bpf, doc: fix typo on bpf_asm descriptions
  stmmac: hardware TX COE doesn't work when force_thresh_dma_mode is set
  net: ethernet: fs-enet: use phy_ethtool_{get|set}_link_ksettings
  net: ethernet: fs-enet: use phydev from struct net_device
  ...

1 files changed, 26 insertions, 45 deletions

diff --git a/net/mac80211/mesh.h b/net/mac80211/mesh.h
index 87c017a3b1ce..26b9ccbe1fce 100644
--- a/net/mac80211/mesh.h
+++ b/net/mac80211/mesh.h
@@ -21,8 +21,6 @@
 /**
  * enum mesh_path_flags - mac80211 mesh path flags
  *
- *
- *
  * @MESH_PATH_ACTIVE: the mesh path can be used for forwarding
  * @MESH_PATH_RESOLVING: the discovery process is running for this mesh path
  * @MESH_PATH_SN_VALID: the mesh path contains a valid destination sequence
@@ -32,6 +30,8 @@
  * @MESH_PATH_RESOLVED: the mesh path can has been resolved
  * @MESH_PATH_REQ_QUEUED: there is an unsent path request for this destination
  *	already queued up, waiting for the discovery process to start.
+ * @MESH_PATH_DELETED: the mesh path has been deleted and should no longer
+ *	be used
  *
  * MESH_PATH_RESOLVED is used by the mesh path timer to
  * decide when to stop or cancel the mesh path discovery.
@@ -43,6 +43,7 @@ enum mesh_path_flags {
 	MESH_PATH_FIXED	=	BIT(3),
 	MESH_PATH_RESOLVED =	BIT(4),
 	MESH_PATH_REQ_QUEUED =	BIT(5),
+	MESH_PATH_DELETED =	BIT(6),
 };
 
 /**
@@ -51,10 +52,6 @@ enum mesh_path_flags {
  *
  *
  * @MESH_WORK_HOUSEKEEPING: run the periodic mesh housekeeping tasks
- * @MESH_WORK_GROW_MPATH_TABLE: the mesh path table is full and needs
- * to grow.
- * @MESH_WORK_GROW_MPP_TABLE: the mesh portals table is full and needs to
- * grow
  * @MESH_WORK_ROOT: the mesh root station needs to send a frame
  * @MESH_WORK_DRIFT_ADJUST: time to compensate for clock drift relative to other
  * mesh nodes
@@ -62,8 +59,6 @@ enum mesh_path_flags {
  */
 enum mesh_deferred_task_flags {
 	MESH_WORK_HOUSEKEEPING,
-	MESH_WORK_GROW_MPATH_TABLE,
-	MESH_WORK_GROW_MPP_TABLE,
 	MESH_WORK_ROOT,
 	MESH_WORK_DRIFT_ADJUST,
 	MESH_WORK_MBSS_CHANGED,
@@ -73,12 +68,16 @@ enum mesh_deferred_task_flags {
  * struct mesh_path - mac80211 mesh path structure
  *
  * @dst: mesh path destination mac address
+ * @mpp: mesh proxy mac address
+ * @rhash: rhashtable list pointer
+ * @gate_list: list pointer for known gates list
  * @sdata: mesh subif
  * @next_hop: mesh neighbor to which frames for this destination will be
  *	forwarded
  * @timer: mesh path discovery timer
  * @frame_queue: pending queue for frames sent to this destination while the
  *	path is unresolved
+ * @rcu: rcu head for freeing mesh path
  * @sn: target sequence number
  * @metric: current metric to this destination
  * @hop_count: hops to destination
@@ -97,14 +96,16 @@ enum mesh_deferred_task_flags {
  * @is_gate: the destination station of this path is a mesh gate
  *
  *
- * The combination of dst and sdata is unique in the mesh path table. Since the
- * next_hop STA is only protected by RCU as well, deleting the STA must also
- * remove/substitute the mesh_path structure and wait until that is no longer
- * reachable before destroying the STA completely.
+ * The dst address is unique in the mesh path table. Since the mesh_path is
+ * protected by RCU, deleting the next_hop STA must remove / substitute the
+ * mesh_path structure and wait until that is no longer reachable before
+ * destroying the STA completely.
  */
 struct mesh_path {
 	u8 dst[ETH_ALEN];
 	u8 mpp[ETH_ALEN];	/* used for MPP or MAP */
+	struct rhash_head rhash;
+	struct hlist_node gate_list;
 	struct ieee80211_sub_if_data *sdata;
 	struct sta_info __rcu *next_hop;
 	struct timer_list timer;
@@ -128,34 +129,17 @@ struct mesh_path {
 /**
  * struct mesh_table
  *
- * @hash_buckets: array of hash buckets of the table
- * @hashwlock: array of locks to protect write operations, one per bucket
- * @hash_mask: 2^size_order - 1, used to compute hash idx
- * @hash_rnd: random value used for hash computations
- * @entries: number of entries in the table
- * @free_node: function to free nodes of the table
- * @copy_node: function to copy nodes of the table
- * @size_order: determines size of the table, there will be 2^size_order hash
- *	buckets
  * @known_gates: list of known mesh gates and their mpaths by the station. The
  * gate's mpath may or may not be resolved and active.
- *
- * rcu_head: RCU head to free the table
+ * @gates_lock: protects updates to known_gates
+ * @rhead: the rhashtable containing struct mesh_paths, keyed by dest addr
+ * @entries: number of entries in the table
  */
 struct mesh_table {
-	/* Number of buckets will be 2^N */
-	struct hlist_head *hash_buckets;
-	spinlock_t *hashwlock;		/* One per bucket, for add/del */
-	unsigned int hash_mask;		/* (2^size_order) - 1 */
-	__u32 hash_rnd;			/* Used for hash generation */
-	atomic_t entries;		/* Up to MAX_MESH_NEIGHBOURS */
-	void (*free_node) (struct hlist_node *p, bool free_leafs);
-	int (*copy_node) (struct hlist_node *p, struct mesh_table *newtbl);
-	int size_order;
-	struct hlist_head *known_gates;
+	struct hlist_head known_gates;
 	spinlock_t gates_lock;
-
-	struct rcu_head rcu_head;
+	struct rhashtable rhead;
+	atomic_t entries;		/* Up to MAX_MESH_NEIGHBOURS */
 };
 
 /* Recent multicast cache */
@@ -170,20 +154,21 @@ struct mesh_table {
  * @seqnum: mesh sequence number of the frame
  * @exp_time: expiration time of the entry, in jiffies
  * @sa: source address of the frame
+ * @list: hashtable list pointer
  *
  * The Recent Multicast Cache keeps track of the latest multicast frames that
  * have been received by a mesh interface and discards received multicast frames
  * that are found in the cache.
  */
 struct rmc_entry {
-	struct list_head list;
-	u32 seqnum;
+	struct hlist_node list;
 	unsigned long exp_time;
+	u32 seqnum;
 	u8 sa[ETH_ALEN];
 };
 
 struct mesh_rmc {
-	struct list_head bucket[RMC_BUCKETS];
+	struct hlist_head bucket[RMC_BUCKETS];
 	u32 idx_mask;
 };
 
@@ -234,6 +219,7 @@ void ieee80211s_init(void);
 void ieee80211s_update_metric(struct ieee80211_local *local,
 			      struct sta_info *sta, struct sk_buff *skb);
 void ieee80211_mesh_init_sdata(struct ieee80211_sub_if_data *sdata);
+void ieee80211_mesh_teardown_sdata(struct ieee80211_sub_if_data *sdata);
 int ieee80211_start_mesh(struct ieee80211_sub_if_data *sdata);
 void ieee80211_stop_mesh(struct ieee80211_sub_if_data *sdata);
 void ieee80211_mesh_root_setup(struct ieee80211_if_mesh *ifmsh);
@@ -299,9 +285,6 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata,
 void mesh_sta_cleanup(struct sta_info *sta);
 
 /* Private interfaces */
-/* Mesh tables */
-void mesh_mpath_table_grow(void);
-void mesh_mpp_table_grow(void);
 /* Mesh paths */
 int mesh_path_error_tx(struct ieee80211_sub_if_data *sdata,
 		       u8 ttl, const u8 *target, u32 target_sn,
@@ -309,8 +292,8 @@ int mesh_path_error_tx(struct ieee80211_sub_if_data *sdata,
 void mesh_path_assign_nexthop(struct mesh_path *mpath, struct sta_info *sta);
 void mesh_path_flush_pending(struct mesh_path *mpath);
 void mesh_path_tx_pending(struct mesh_path *mpath);
-int mesh_pathtbl_init(void);
-void mesh_pathtbl_unregister(void);
+int mesh_pathtbl_init(struct ieee80211_sub_if_data *sdata);
+void mesh_pathtbl_unregister(struct ieee80211_sub_if_data *sdata);
 int mesh_path_del(struct ieee80211_sub_if_data *sdata, const u8 *addr);
 void mesh_path_timer(unsigned long data);
 void mesh_path_flush_by_nexthop(struct sta_info *sta);
@@ -319,8 +302,6 @@ void mesh_path_discard_frame(struct ieee80211_sub_if_data *sdata,
 void mesh_path_tx_root_frame(struct ieee80211_sub_if_data *sdata);
 
 bool mesh_action_is_path_sel(struct ieee80211_mgmt *mgmt);
-extern int mesh_paths_generation;
-extern int mpp_paths_generation;
 
 #ifdef CONFIG_MAC80211_MESH
 static inline