linux-toradex.git/net/tipc/net.h, branch v3.9-rc2

tipc: change tipc_net_start routine return value type

2012-08-20T09:26:30+00:00

Since now tipc_net_start() always returns a success code - 0, its
return value type should be changed from integer to void, which can
avoid unnecessary check for its return value.

Signed-off-by: Ying Xue 
Signed-off-by: Jon Maloy 
Signed-off-by: Paul Gortmaker 
Signed-off-by: David S. Miller

tipc: manually inline net_start/stop, make assoc. vars static

2011-03-13T20:35:17+00:00

Relocates network-related variables into the subsystem files where
they are now primarily used (following the recent rework of TIPC's
node table), and converts globals into locals where possible. Changes
the initialization of tipc_num_links from run-time to compile-time,
and eliminates the net_start routine that becomes empty as a result.
Also eliminates the corresponding net_stop routine by moving its
(trivial) content into the one location that called the routine.

Signed-off-by: Allan Stephens 
Signed-off-by: Paul Gortmaker

tipc: Convert node object array to a hash table

2011-03-13T20:35:17+00:00

Replaces the dynamically allocated array of pointers to the cluster's
node objects with a static hash table. Hash collisions are resolved
using chaining, with a typical hash chain having only a single node,
to avoid degrading performance during processing of incoming packets.
The conversion to a hash table reduces the memory requirements for
TIPC's node table to approximately the same size it had prior to
the previous commit.

In addition to the hash table itself, TIPC now also maintains a
linked list for the node objects, sorted by ascending network address.
This list allows TIPC to continue sending responses to user space
applications that request node and link information in sorted order.
The list also improves performance when name table update messages are
sent by making it easier to identify the nodes that must be notified.

Signed-off-by: Allan Stephens 
Signed-off-by: Paul Gortmaker

tipc: Split up unified structure of network-related variables

2011-03-13T20:35:17+00:00

Converts the fields of the global "tipc_net" structure into individual
variables.  Since the struct was never referenced as a complete unit,
its existence was pointless.  This will facilitate upcoming changes to
TIPC's node table and simpify upcoming relocation of the variables so
they are only visible to the files that actually use them.

This change is essentially cosmetic in nature, and doesn't affect the
operation of TIPC.

Signed-off-by: Allan Stephens 
Signed-off-by: Paul Gortmaker

tipc: Fix problem with missing link in "tipc-config -l" output

2011-03-13T20:35:16+00:00

Removes a race condition that could cause TIPC's internal counter
of the number of links it has to neighboring nodes to have the
incorrect value if two independent threads of control simultaneously
create new link endpoints connecting to two different nodes using two
different bearers. Such under counting would result in TIPC failing to
list the final link(s) in its response to a configuration request to
list all of the node's links. The counter is now updated atomically
to ensure that simultaneous increments do not interfere with each
other.

Thanks go to Peter Butler  for his assistance in
diagnosing and fixing this problem.

Signed-off-by: Allan Stephens 
Signed-off-by: Paul Gortmaker

tipc: Remove prototype code for supporting multiple clusters

2011-01-01T21:57:49+00:00

Eliminates routines, data structures, and files that were intended
to allow TIPC to support a network containing multiple clusters.
Currently, TIPC supports only networks consisting of a single cluster
within a single zone, so this code is unnecessary.

Signed-off-by: Allan Stephens 
Signed-off-by: Paul Gortmaker 
Signed-off-by: David S. Miller

tipc: Remove prototype code for supporting inter-cluster routing

2011-01-01T21:57:48+00:00

Eliminates routines and data structures that were intended to allow
TIPC to route messages to other clusters. Currently, TIPC supports only
networks consisting of a single cluster within a single zone, so this
code is unnecessary.

Signed-off-by: Allan Stephens 
Signed-off-by: Paul Gortmaker 
Signed-off-by: David S. Miller

tipc: Remove prototype code for supporting multiple zones

2011-01-01T21:57:47+00:00

Eliminates routines, data structures, and files that were intended
to allows TIPC to support a network containing multiple zones.
Currently, TIPC supports only networks consisting of a single cluster
within a single zone, so this code is unnecessary.

Signed-off-by: Allan Stephens 
Signed-off-by: Paul Gortmaker 
Signed-off-by: David S. Miller

tipc: Don't use structure names which easily globally conflict.

2008-09-03T06:38:32+00:00

Andrew Morton reported a build failure on sparc32, because TIPC
uses names like "struct node" and there is a like named data
structure defined in linux/node.h

This just regexp replaces "struct node*" to "struct tipc_node*"
to avoid this and any future similar problems.

Signed-off-by: David S. Miller

tipc: Fix initialization sequence problems when entering network mode

2008-05-21T21:55:04+00:00

This patch ensures that TIPC's topology service and configuration
service are shut down before switching into "network mode".  This
ensures that TIPC does not mistakenly try to send unnecessary
"publication withdraw" messages to other nodes before it is fully
initialized for sending off-node messages.  Note that the node's
current network address is now updated only after the two services
are shut down; this ensures that any existing connections to the
topology server are terminated correctly using the old address.

Signed-off-by: Allan Stephens 
Signed-off-by: David S. Miller