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| author |   Jon Paul Maloy <jon.maloy@ericsson.com> | 2015-07-30 18:24:18 -0400 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2015-07-30 17:25:13 -0700 |
| commit | 66996b6c47ed7f6bbb01a768e23fae262c7db8e0 (patch) | |
| tree | 2567778802dedcde9c2b72430919038999512373 /net/tipc/link.h | |
| parent | tipc: reverse call order for link_reset()->node_link_down() (diff) | |
| download | linux-dev-66996b6c47ed7f6bbb01a768e23fae262c7db8e0.tar.xz linux-dev-66996b6c47ed7f6bbb01a768e23fae262c7db8e0.zip | |
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/link.h')
0 files changed, 0 insertions, 0 deletions