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

Pull networking updates from David Miller:
 "Highlights:

   1) Steady transitioning of the BPF instructure to a generic spot so
      all kernel subsystems can make use of it, from Alexei Starovoitov.

   2) SFC driver supports busy polling, from Alexandre Rames.

   3) Take advantage of hash table in UDP multicast delivery, from David
      Held.

   4) Lighten locking, in particular by getting rid of the LRU lists, in
      inet frag handling.  From Florian Westphal.

   5) Add support for various RFC6458 control messages in SCTP, from
      Geir Ola Vaagland.

   6) Allow to filter bridge forwarding database dumps by device, from
      Jamal Hadi Salim.

   7) virtio-net also now supports busy polling, from Jason Wang.

   8) Some low level optimization tweaks in pktgen from Jesper Dangaard
      Brouer.

   9) Add support for ipv6 address generation modes, so that userland
      can have some input into the process.  From Jiri Pirko.

  10) Consolidate common TCP connection request code in ipv4 and ipv6,
      from Octavian Purdila.

  11) New ARP packet logger in netfilter, from Pablo Neira Ayuso.

  12) Generic resizable RCU hash table, with intial users in netlink and
      nftables.  From Thomas Graf.

  13) Maintain a name assignment type so that userspace can see where a
      network device name came from (enumerated by kernel, assigned
      explicitly by userspace, etc.) From Tom Gundersen.

  14) Automatic flow label generation on transmit in ipv6, from Tom
      Herbert.

  15) New packet timestamping facilities from Willem de Bruijn, meant to
      assist in measuring latencies going into/out-of the packet
      scheduler, latency from TCP data transmission to ACK, etc"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1536 commits)
  cxgb4 : Disable recursive mailbox commands when enabling vi
  net: reduce USB network driver config options.
  tg3: Modify tg3_tso_bug() to handle multiple TX rings
  amd-xgbe: Perform phy connect/disconnect at dev open/stop
  amd-xgbe: Use dma_set_mask_and_coherent to set DMA mask
  net: sun4i-emac: fix memory leak on bad packet
  sctp: fix possible seqlock seadlock in sctp_packet_transmit()
  Revert "net: phy: Set the driver when registering an MDIO bus device"
  cxgb4vf: Turn off SGE RX/TX Callback Timers and interrupts in PCI shutdown routine
  team: Simplify return path of team_newlink
  bridge: Update outdated comment on promiscuous mode
  net-timestamp: ACK timestamp for bytestreams
  net-timestamp: TCP timestamping
  net-timestamp: SCHED timestamp on entering packet scheduler
  net-timestamp: add key to disambiguate concurrent datagrams
  net-timestamp: move timestamp flags out of sk_flags
  net-timestamp: extend SCM_TIMESTAMPING ancillary data struct
  cxgb4i : Move stray CPL definitions to cxgb4 driver
  tcp: reduce spurious retransmits due to transient SACK reneging
  qlcnic: Initialize dcbnl_ops before register_netdev
  ...

1 files changed, 39 insertions, 22 deletions

diff --git a/net/hsr/hsr_main.h b/net/hsr/hsr_main.h
index 56fe060c0ab1..5a9c69962ded 100644
--- a/net/hsr/hsr_main.h
+++ b/net/hsr/hsr_main.h
@@ -1,4 +1,4 @@
-/* Copyright 2011-2013 Autronica Fire and Security AS
+/* Copyright 2011-2014 Autronica Fire and Security AS
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License as published by the Free
@@ -6,11 +6,11 @@
  * any later version.
  *
  * Author(s):
- *	2011-2013 Arvid Brodin, arvid.brodin@xdin.com
+ *	2011-2014 Arvid Brodin, arvid.brodin@alten.se
  */
 
-#ifndef _HSR_PRIVATE_H
-#define _HSR_PRIVATE_H
+#ifndef __HSR_PRIVATE_H
+#define __HSR_PRIVATE_H
 
 #include <linux/netdevice.h>
 #include <linux/list.h>
@@ -29,6 +29,7 @@
  * each node differ before we notify of communication problem?
  */
 #define MAX_SLAVE_DIFF			 3000 /* ms */
+#define HSR_SEQNR_START			(USHRT_MAX - 1024)
 
 
 /* How often shall we check for broken ring and remove node entries older than
@@ -46,16 +47,16 @@
  * path, LSDU_size, sequence Nr }. But we let eth_header() create { h_dest,
  * h_source, h_proto = 0x88FB }, and add { path, LSDU_size, sequence Nr,
  * encapsulated protocol } instead.
+ *
+ * Field names as defined in the IEC:2010 standard for HSR.
  */
-#define HSR_TAGLEN	6
-
-/* Field names below as defined in the IEC:2010 standard for HSR. */
 struct hsr_tag {
 	__be16		path_and_LSDU_size;
 	__be16		sequence_nr;
 	__be16		encap_proto;
 } __packed;
 
+#define HSR_HLEN	6
 
 /* The helper functions below assumes that 'path' occupies the 4 most
  * significant bits of the 16-bit field shared by 'path' and 'LSDU_size' (or
@@ -136,31 +137,47 @@ struct hsr_ethhdr_sp {
 } __packed;
 
 
-enum hsr_dev_idx {
-	HSR_DEV_NONE = -1,
-	HSR_DEV_SLAVE_A = 0,
-	HSR_DEV_SLAVE_B,
-	HSR_DEV_MASTER,
+enum hsr_port_type {
+	HSR_PT_NONE = 0,	/* Must be 0, used by framereg */
+	HSR_PT_SLAVE_A,
+	HSR_PT_SLAVE_B,
+	HSR_PT_INTERLINK,
+	HSR_PT_MASTER,
+	HSR_PT_PORTS,	/* This must be the last item in the enum */
+};
+
+struct hsr_port {
+	struct list_head	port_list;
+	struct net_device	*dev;
+	struct hsr_priv		*hsr;
+	enum hsr_port_type	type;
 };
-#define HSR_MAX_SLAVE	(HSR_DEV_SLAVE_B + 1)
-#define HSR_MAX_DEV	(HSR_DEV_MASTER + 1)
 
 struct hsr_priv {
-	struct list_head	hsr_list;	/* List of hsr devices */
 	struct rcu_head		rcu_head;
-	struct net_device	*dev;
-	struct net_device	*slave[HSR_MAX_SLAVE];
-	struct list_head	node_db;	/* Other HSR nodes */
+	struct list_head	ports;
+	struct list_head	node_db;	/* Known HSR nodes */
 	struct list_head	self_node_db;	/* MACs of slaves */
 	struct timer_list	announce_timer;	/* Supervision frame dispatch */
+	struct timer_list	prune_timer;
 	int announce_count;
 	u16 sequence_nr;
 	spinlock_t seqnr_lock;			/* locking for sequence_nr */
 	unsigned char		sup_multicast_addr[ETH_ALEN];
 };
 
-void register_hsr_master(struct hsr_priv *hsr_priv);
-void unregister_hsr_master(struct hsr_priv *hsr_priv);
-bool is_hsr_slave(struct net_device *dev);
+#define hsr_for_each_port(hsr, port) \
+	list_for_each_entry_rcu((port), &(hsr)->ports, port_list)
+
+struct hsr_port *hsr_port_get_hsr(struct hsr_priv *hsr, enum hsr_port_type pt);
+
+/* Caller must ensure skb is a valid HSR frame */
+static inline u16 hsr_get_skb_sequence_nr(struct sk_buff *skb)
+{
+	struct hsr_ethhdr *hsr_ethhdr;
+
+	hsr_ethhdr = (struct hsr_ethhdr *) skb_mac_header(skb);
+	return ntohs(hsr_ethhdr->hsr_tag.sequence_nr);
+}
 
-#endif /*  _HSR_PRIVATE_H */
+#endif /*  __HSR_PRIVATE_H */