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authorJon Paul Maloy <jon.maloy@ericsson.com>2015-07-31 01:24:18 +0300
committerDavid S. Miller <davem@davemloft.net>2015-07-31 03:25:13 +0300
commit66996b6c47ed7f6bbb01a768e23fae262c7db8e0 (patch)
tree2567778802dedcde9c2b72430919038999512373 /net/tipc/node.h
parent655fb243b8ae5e652f744311bcb6e806e83cea1e (diff)
downloadlinux-66996b6c47ed7f6bbb01a768e23fae262c7db8e0.tar.xz
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>
Diffstat (limited to 'net/tipc/node.h')
-rw-r--r--net/tipc/node.h14
1 files changed, 10 insertions, 4 deletions
diff --git a/net/tipc/node.h b/net/tipc/node.h
index 49df0e934a65..65e2728f66a6 100644
--- a/net/tipc/node.h
+++ b/net/tipc/node.h
@@ -56,13 +56,19 @@ enum {
SELF_UP_PEER_COMING = 0xac,
SELF_COMING_PEER_UP = 0xca,
SELF_LEAVING_PEER_DOWN = 0x1d,
+ NODE_FAILINGOVER = 0xf0,
+ NODE_SYNCHING = 0xcc
};
enum {
- SELF_ESTABL_CONTACT_EVT = 0xec,
- SELF_LOST_CONTACT_EVT = 0x1c,
- PEER_ESTABL_CONTACT_EVT = 0xfec,
- PEER_LOST_CONTACT_EVT = 0xf1c
+ SELF_ESTABL_CONTACT_EVT = 0xece,
+ SELF_LOST_CONTACT_EVT = 0x1ce,
+ PEER_ESTABL_CONTACT_EVT = 0xfece,
+ PEER_LOST_CONTACT_EVT = 0xf1ce,
+ NODE_FAILOVER_BEGIN_EVT = 0xfbe,
+ NODE_FAILOVER_END_EVT = 0xfee,
+ NODE_SYNCH_BEGIN_EVT = 0xcbe,
+ NODE_SYNCH_END_EVT = 0xcee
};
/* Flags used to take different actions according to flag type