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Jon Paul Maloy 66996b6c47 tipc: extend node FSM 
In the next commit, we will move link synch/failover orchestration to
the link aggregation level. In order to do this, we first need to extend
the node FSM with two more states, NODE_SYNCHING and NODE_FAILINGOVER,
plus four new events to enter and leave those states.

This commit introduces this change, without yet making use of it.
The node FSM now looks as follows:

                           +-----------------------------------------+
                           |                            PEER_DOWN_EVT|
                           |                                         |
  +------------------------+----------------+                        |
  |SELF_DOWN_EVT           |                |                        |
  |                        |                |                        |
  |              +-----------+          +-----------+                |
  |              |NODE_      |          |NODE_      |                |
  |   +----------|FAILINGOVER|<---------|SYNCHING   |------------+   |
  |   |SELF_     +-----------+ FAILOVER_+-----------+    PEER_   |   |
  |   |DOWN_EVT   |         A  BEGIN_EVT A         |     DOWN_EVT|   |
  |   |           |         |            |         |             |   |
  |   |           |         |            |         |             |   |
  |   |           |FAILOVER_|FAILOVER_   |SYNCH_   |SYNCH_       |   |
  |   |           |END_EVT  |BEGIN_EVT   |BEGIN_EVT|END_EVT      |   |
  |   |           |         |            |         |             |   |
  |   |           |         |            |         |             |   |
  |   |           |        +--------------+        |             |   |
  |   |           +------->|   SELF_UP_   |<-------+             |   |
  |   |   +----------------|   PEER_UP    |------------------+   |   |
  |   |   |SELF_DOWN_EVT   +--------------+     PEER_DOWN_EVT|   |   |
  |   |   |                   A          A                   |   |   |
  |   |   |                   |          |                   |   |   |
  |   |   |        PEER_UP_EVT|          |SELF_UP_EVT        |   |   |
  |   |   |                   |          |                   |   |   |
  V   V   V                   |          |                   V   V   V
+------------+       +-----------+    +-----------+       +------------+
|SELF_DOWN_  |       |SELF_UP_   |    |PEER_UP_   |       |PEER_DOWN   |
|PEER_LEAVING|<------|PEER_COMING|    |SELF_COMING|------>|SELF_LEAVING|
+------------+ SELF_ +-----------+    +-----------+ PEER_ +------------+
       |       DOWN_EVT       A          A          DOWN_EVT     |
       |                      |          |                       |
       |                      |          |                       |
       |           SELF_UP_EVT|          |PEER_UP_EVT            |
       |                      |          |                       |
       |                      |          |                       |
       |PEER_DOWN_EVT       +--------------+        SELF_DOWN_EVT|
       +------------------->|  SELF_DOWN_  |<--------------------+
                            |  PEER_DOWN   |
                            +--------------+

Tested-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 		2015-07-30 17:25:13 -07:00
..
6lowpan 6lowpan: add request for ipv6 module 2015-07-23 17:10:48 +02:00
9p Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2015-07-04 19:36:06 -07:00
802 net: Kill dev_rebuild_header 2015-03-02 16:43:41 -05:00
8021q vlan: Add GRO support for non hardware accelerated vlan 2015-06-01 16:50:52 -07:00
appletalk net: Pass kern from net_proto_family.create to sk_alloc 2015-05-11 10:50:17 -04:00
atm net: Pass kern from net_proto_family.create to sk_alloc 2015-05-11 10:50:17 -04:00
ax25 NET: AX.25: Stop heartbeat timer on disconnect. 2015-07-15 15:59:58 -07:00
batman-adv batman-adv: change the MAC of each VLAN upon ndo_set_mac_address 2015-06-07 17:07:20 +02:00
bluetooth Bluetooth: 6lowpan: Fix possible race 2015-07-30 14:11:36 +02:00
bridge bridge: mdb: notify on router port add and del 2015-07-26 21:19:58 -07:00
caif caif: fix leaks and race in caif_queue_rcv_skb() 2015-07-21 00:02:44 -07:00
can can: replace timestamp as unique skb attribute 2015-07-12 21:13:22 +02:00
ceph libceph: treat sockaddr_storage with uninitialized family as blank 2015-07-09 20:30:34 +03:00
core net: pktgen: Remove unused 'allocated_skbs' field 2015-07-29 23:00:39 -07:00
dcb net/dcb: Add IEEE QCN attribute 2015-03-06 21:50:02 -05:00
dccp sock_diag: specify info_size per inet protocol 2015-06-15 19:49:22 -07:00
decnet net: Pass kern from net_proto_family.create to sk_alloc 2015-05-11 10:50:17 -04:00
dns_resolver
…
dsa net: dsa: Fix off-by-one in switch address parsing 2015-07-11 23:25:16 -07:00
ethernet net: Add full IPv6 addresses to flow_keys 2015-06-04 15:44:30 -07:00
hsr net/hsr: Fix NULL pointer dereference and refcnt bugs when deleting a HSR interface. 2015-03-01 13:40:23 -05:00
ieee802154 cfg802154: add PM hooks 2015-07-23 17:10:49 +02:00
ipv4 net: Set sk_txhash from a random number 2015-07-29 22:44:04 -07:00
ipv6 net/ipv6: add sysctl option accept_ra_min_hop_limit 2015-07-30 15:56:40 -07:00
ipx net: Pass kern from net_proto_family.create to sk_alloc 2015-05-11 10:50:17 -04:00
irda irda: use msecs_to_jiffies for conversion to jiffies 2015-05-25 17:46:21 -04:00
iucv net: Pass kern from net_proto_family.create to sk_alloc 2015-05-11 10:50:17 -04:00
key Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2015-06-24 16:49:49 -07:00
l2tp net: Modify sk_alloc to not reference count the netns of kernel sockets. 2015-05-11 10:50:18 -04:00
lapb
…
llc net: Pass kern from net_proto_family.create to sk_alloc 2015-05-11 10:50:17 -04:00
mac80211 cfg80211: use RTNL locked reg_can_beacon for IR-relaxation 2015-07-17 15:02:02 +02:00
mac802154 mac802154: Fix memory corruption with global deferred transmit state. 2015-07-30 14:08:55 +02:00
mpls mpls_iptunnel: fix sparse warn: remove incorrect rcu_dereference 2015-07-22 10:50:23 -07:00
netfilter net: #ifdefify sk_classid member of struct sock 2015-07-21 16:04:30 -07:00
netlabel netlink: implement nla_put_in_addr and nla_put_in6_addr 2015-03-31 13:58:35 -04:00
netlink netlink: don't hold mutex in rcu callback when releasing mmapd ring 2015-07-21 22:22:56 -07:00
netrom netfilter: Remove spurios included of netfilter.h 2015-06-18 21:14:32 +02:00
nfc NFC: nci: fix mistake in uart generic driver 2015-06-15 18:10:37 +02:00
openvswitch openvswitch: Re-add CONFIG_OPENVSWITCH_VXLAN 2015-07-29 23:03:10 -07:00
packet packet: remove handling of tx_ring from prb_shutdown_retire_blk_timer() 2015-07-29 15:11:12 -07:00
phonet net: Pass kern from net_proto_family.create to sk_alloc 2015-05-11 10:50:17 -04:00
rds Changes for 4.2-rc 2015-07-15 17:03:03 -07:00
rfkill net: rfkill: gpio: make better use of gpiod API 2015-05-29 13:13:45 +02:00
rose Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2015-06-24 02:58:51 -07:00
rxrpc net: Pass kern from net_proto_family.create to sk_alloc 2015-05-11 10:50:17 -04:00
sched Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2015-07-23 00:41:16 -07:00
sctp sctp: fix cut and paste issue in comment 2015-07-21 00:21:32 -07:00
sunrpc NFS client updates for Linux 4.2 2015-07-02 11:32:23 -07:00
switchdev switchdev: add offload_fwd_mark generator helper 2015-07-20 18:32:44 -07:00
tipc tipc: extend node FSM 2015-07-30 17:25:13 -07:00
unix net/unix: support SCM_SECURITY for stream sockets 2015-06-10 22:49:20 -07:00
vmw_vsock net: Pass kern from net_proto_family.create to sk_alloc 2015-05-11 10:50:17 -04:00
wimax
…
wireless cfg80211: use RTNL locked reg_can_beacon for IR-relaxation 2015-07-17 15:02:02 +02:00
x25 net: Pass kern from net_proto_family.create to sk_alloc 2015-05-11 10:50:17 -04:00
xfrm xfrm: Fix a typo 2015-07-21 00:28:36 -07:00
Kconfig lwtunnel: infrastructure for handling light weight tunnels like mpls 2015-07-21 10:39:03 -07:00
Makefile mpls: Refactor how the mpls module is built 2015-03-04 00:26:06 -05:00
compat.c net: switch importing msghdr from userland to {compat_,}import_iovec() 2015-04-09 00:02:26 -04:00
socket.c net: Add a struct net parameter to sock_create_kern 2015-05-11 10:50:17 -04:00
sysctl_net.c
…