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tipc: Remove prototype code for supporting multiple zones 

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 <Allan.Stephens@windriver.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Allan Stephens 2010-12-31 18:59:16 +00:00 committed by David S. Miller
parent aa6027cacd
commit 51f98a8d70
15 changed files with 46 additions and 325 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
include/linux/tipc_config.h
View File

@ -94,7 +94,7 @@
#define TIPC_CMD_GET_MAX_PORTS 0x4004 /* tx none, rx unsigned */ #define TIPC_CMD_GET_MAX_PORTS 0x4004 /* tx none, rx unsigned */
#define TIPC_CMD_GET_MAX_PUBL 0x4005 /* tx none, rx unsigned */ #define TIPC_CMD_GET_MAX_PUBL 0x4005 /* tx none, rx unsigned */
#define TIPC_CMD_GET_MAX_SUBSCR 0x4006 /* tx none, rx unsigned */ #define TIPC_CMD_GET_MAX_SUBSCR 0x4006 /* tx none, rx unsigned */
#define TIPC_CMD_GET_MAX_ZONES 0x4007 /* tx none, rx unsigned */ #define TIPC_CMD_GET_MAX_ZONES 0x4007 /* obsoleted */
#define TIPC_CMD_GET_MAX_CLUSTERS 0x4008 /* tx none, rx unsigned */ #define TIPC_CMD_GET_MAX_CLUSTERS 0x4008 /* tx none, rx unsigned */
#define TIPC_CMD_GET_MAX_NODES 0x4009 /* tx none, rx unsigned */ #define TIPC_CMD_GET_MAX_NODES 0x4009 /* tx none, rx unsigned */
#define TIPC_CMD_GET_MAX_SLAVES 0x400A /* tx none, rx unsigned */ #define TIPC_CMD_GET_MAX_SLAVES 0x400A /* tx none, rx unsigned */
@ -130,7 +130,7 @@
#define TIPC_CMD_SET_MAX_PORTS 0x8004 /* tx unsigned, rx none */ #define TIPC_CMD_SET_MAX_PORTS 0x8004 /* tx unsigned, rx none */
#define TIPC_CMD_SET_MAX_PUBL 0x8005 /* tx unsigned, rx none */ #define TIPC_CMD_SET_MAX_PUBL 0x8005 /* tx unsigned, rx none */
#define TIPC_CMD_SET_MAX_SUBSCR 0x8006 /* tx unsigned, rx none */ #define TIPC_CMD_SET_MAX_SUBSCR 0x8006 /* tx unsigned, rx none */
#define TIPC_CMD_SET_MAX_ZONES 0x8007 /* tx unsigned, rx none */ #define TIPC_CMD_SET_MAX_ZONES 0x8007 /* obsoleted */
#define TIPC_CMD_SET_MAX_CLUSTERS 0x8008 /* tx unsigned, rx none */ #define TIPC_CMD_SET_MAX_CLUSTERS 0x8008 /* tx unsigned, rx none */
#define TIPC_CMD_SET_MAX_NODES 0x8009 /* tx unsigned, rx none */ #define TIPC_CMD_SET_MAX_NODES 0x8009 /* tx unsigned, rx none */
#define TIPC_CMD_SET_MAX_SLAVES 0x800A /* tx unsigned, rx none */ #define TIPC_CMD_SET_MAX_SLAVES 0x800A /* tx unsigned, rx none */

12
net/tipc/Kconfig
View File

@ -29,18 +29,6 @@ config TIPC_ADVANCED
Saying Y here will open some advanced configuration for TIPC. Saying Y here will open some advanced configuration for TIPC.
Most users do not need to bother; if unsure, just say N. Most users do not need to bother; if unsure, just say N.
config TIPC_ZONES
int "Maximum number of zones in a network"
depends on TIPC_ADVANCED
range 1 255
default "3"
help
Specifies how many zones can be supported in a TIPC network.
Can range from 1 to 255 zones; default is 3.
Setting this to a smaller value saves some memory;
setting it to a higher value allows for more zones.
config TIPC_CLUSTERS config TIPC_CLUSTERS
int "Maximum number of clusters in a zone" int "Maximum number of clusters in a zone"
depends on TIPC_ADVANCED depends on TIPC_ADVANCED

2
net/tipc/Makefile
View File

@ -8,6 +8,6 @@ tipc-y += addr.o bcast.o bearer.o config.o cluster.o \
core.o handler.o link.o discover.o msg.o \ core.o handler.o link.o discover.o msg.o \
name_distr.o subscr.o name_table.o net.o \ name_distr.o subscr.o name_table.o net.o \
netlink.o node.o node_subscr.o port.o ref.o \ netlink.o node.o node_subscr.o port.o ref.o \
socket.o user_reg.o zone.o dbg.o eth_media.o socket.o user_reg.o dbg.o eth_media.o
# End of file # End of file

4
net/tipc/addr.c
View File

@ -35,8 +35,6 @@
*/ */
#include "core.h" #include "core.h"
#include "addr.h"
#include "zone.h"
#include "cluster.h" #include "cluster.h"
/** /**
@ -61,8 +59,6 @@ int tipc_addr_domain_valid(u32 addr)
return 0; return 0;
if (c > tipc_max_clusters) if (c > tipc_max_clusters)
return 0; return 0;
if (z > tipc_max_zones)
return 0;
if (n && (!z || !c)) if (n && (!z || !c))
return 0; return 0;

14
net/tipc/cluster.c
View File

@ -47,7 +47,6 @@ u32 tipc_highest_allowed_slave = 0;
struct cluster *tipc_cltr_create(u32 addr) struct cluster *tipc_cltr_create(u32 addr)
{ {
struct _zone *z_ptr;
struct cluster *c_ptr; struct cluster *c_ptr;
int max_nodes; int max_nodes;
@ -75,18 +74,7 @@ struct cluster *tipc_cltr_create(u32 addr)
c_ptr->highest_slave = LOWEST_SLAVE - 1; c_ptr->highest_slave = LOWEST_SLAVE - 1;
c_ptr->highest_node = 0; c_ptr->highest_node = 0;
z_ptr = tipc_zone_find(tipc_zone(addr)); tipc_net.clusters[1] = c_ptr;
if (!z_ptr) {
z_ptr = tipc_zone_create(addr);
}
if (!z_ptr) {
kfree(c_ptr->nodes);
kfree(c_ptr);
return NULL;
}
tipc_zone_attach_cluster(z_ptr, c_ptr);
c_ptr->owner = z_ptr;
return c_ptr; return c_ptr;
} }

10
net/tipc/cluster.h
View File

@ -38,14 +38,13 @@
#define _TIPC_CLUSTER_H #define _TIPC_CLUSTER_H
#include "addr.h" #include "addr.h"
#include "zone.h" #include "net.h"
#define LOWEST_SLAVE 2048u #define LOWEST_SLAVE 2048u
/** /**
* struct cluster - TIPC cluster structure * struct cluster - TIPC cluster structure
* @addr: network address of cluster * @addr: network address of cluster
* @owner: pointer to zone that cluster belongs to
* @nodes: array of pointers to all nodes within cluster * @nodes: array of pointers to all nodes within cluster
* @highest_node: id of highest numbered node within cluster * @highest_node: id of highest numbered node within cluster
* @highest_slave: (used for secondary node support) * @highest_slave: (used for secondary node support)
@ -53,7 +52,6 @@
struct cluster { struct cluster {
u32 addr; u32 addr;
struct _zone *owner;
struct tipc_node **nodes; struct tipc_node **nodes;
u32 highest_node; u32 highest_node;
u32 highest_slave; u32 highest_slave;
@ -82,11 +80,9 @@ void tipc_cltr_bcast_lost_route(struct cluster *c_ptr, u32 dest, u32 lo, u32 hi)
static inline struct cluster *tipc_cltr_find(u32 addr) static inline struct cluster *tipc_cltr_find(u32 addr)
{ {
struct _zone *z_ptr = tipc_zone_find(addr); if (!in_own_cluster(addr))
if (z_ptr)
return z_ptr->clusters[1];
return NULL; return NULL;
return tipc_net.clusters[1];
} }
#endif #endif

30
net/tipc/config.c
View File

@ -269,25 +269,6 @@ static struct sk_buff *cfg_set_max_ports(void)
return tipc_cfg_reply_none(); return tipc_cfg_reply_none();
} }
static struct sk_buff *cfg_set_max_zones(void)
{
u32 value;
if (!TLV_CHECK(req_tlv_area, req_tlv_space, TIPC_TLV_UNSIGNED))
return tipc_cfg_reply_error_string(TIPC_CFG_TLV_ERROR);
value = ntohl(*(__be32 *)TLV_DATA(req_tlv_area));
if (value == tipc_max_zones)
return tipc_cfg_reply_none();
if (value != delimit(value, 1, 255))
return tipc_cfg_reply_error_string(TIPC_CFG_INVALID_VALUE
" (max zones must be 1-255)");
if (tipc_mode == TIPC_NET_MODE)
return tipc_cfg_reply_error_string(TIPC_CFG_NOT_SUPPORTED
" (cannot change max zones once TIPC has joined a network)");
tipc_max_zones = value;
return tipc_cfg_reply_none();
}
static struct sk_buff *cfg_set_max_clusters(void) static struct sk_buff *cfg_set_max_clusters(void)
{ {
u32 value; u32 value;
@ -452,9 +433,6 @@ struct sk_buff *tipc_cfg_do_cmd(u32 orig_node, u16 cmd, const void *request_area
case TIPC_CMD_SET_MAX_SUBSCR: case TIPC_CMD_SET_MAX_SUBSCR:
rep_tlv_buf = cfg_set_max_subscriptions(); rep_tlv_buf = cfg_set_max_subscriptions();
break; break;
case TIPC_CMD_SET_MAX_ZONES:
rep_tlv_buf = cfg_set_max_zones();
break;
case TIPC_CMD_SET_MAX_CLUSTERS: case TIPC_CMD_SET_MAX_CLUSTERS:
rep_tlv_buf = cfg_set_max_clusters(); rep_tlv_buf = cfg_set_max_clusters();
break; break;
@ -479,9 +457,6 @@ struct sk_buff *tipc_cfg_do_cmd(u32 orig_node, u16 cmd, const void *request_area
case TIPC_CMD_GET_MAX_SUBSCR: case TIPC_CMD_GET_MAX_SUBSCR:
rep_tlv_buf = tipc_cfg_reply_unsigned(tipc_max_subscriptions); rep_tlv_buf = tipc_cfg_reply_unsigned(tipc_max_subscriptions);
break; break;
case TIPC_CMD_GET_MAX_ZONES:
rep_tlv_buf = tipc_cfg_reply_unsigned(tipc_max_zones);
break;
case TIPC_CMD_GET_MAX_CLUSTERS: case TIPC_CMD_GET_MAX_CLUSTERS:
rep_tlv_buf = tipc_cfg_reply_unsigned(tipc_max_clusters); rep_tlv_buf = tipc_cfg_reply_unsigned(tipc_max_clusters);
break; break;
@ -498,6 +473,11 @@ struct sk_buff *tipc_cfg_do_cmd(u32 orig_node, u16 cmd, const void *request_area
rep_tlv_buf = rep_tlv_buf =
tipc_cfg_reply_error_string(TIPC_CFG_NOT_NET_ADMIN); tipc_cfg_reply_error_string(TIPC_CFG_NOT_NET_ADMIN);
break; break;
case TIPC_CMD_SET_MAX_ZONES:
case TIPC_CMD_GET_MAX_ZONES:
rep_tlv_buf = tipc_cfg_reply_error_string(TIPC_CFG_NOT_SUPPORTED
" (obsolete command)");
break;
default: default:
rep_tlv_buf = tipc_cfg_reply_error_string(TIPC_CFG_NOT_SUPPORTED rep_tlv_buf = tipc_cfg_reply_error_string(TIPC_CFG_NOT_SUPPORTED
" (unknown command)"); " (unknown command)");

6
net/tipc/core.c
View File

@ -48,10 +48,6 @@
#include "config.h" #include "config.h"
#ifndef CONFIG_TIPC_ZONES
#define CONFIG_TIPC_ZONES 3
#endif
#ifndef CONFIG_TIPC_CLUSTERS #ifndef CONFIG_TIPC_CLUSTERS
#define CONFIG_TIPC_CLUSTERS 1 #define CONFIG_TIPC_CLUSTERS 1
#endif #endif
@ -84,7 +80,6 @@ const char tipc_alphabet[] =
/* configurable TIPC parameters */ /* configurable TIPC parameters */
u32 tipc_own_addr; u32 tipc_own_addr;
int tipc_max_zones;
int tipc_max_clusters; int tipc_max_clusters;
int tipc_max_nodes; int tipc_max_nodes;
int tipc_max_slaves; int tipc_max_slaves;
@ -209,7 +204,6 @@ static int __init tipc_init(void)
tipc_max_publications = 10000; tipc_max_publications = 10000;
tipc_max_subscriptions = 2000; tipc_max_subscriptions = 2000;
tipc_max_ports = CONFIG_TIPC_PORTS; tipc_max_ports = CONFIG_TIPC_PORTS;
tipc_max_zones = CONFIG_TIPC_ZONES;
tipc_max_clusters = CONFIG_TIPC_CLUSTERS; tipc_max_clusters = CONFIG_TIPC_CLUSTERS;
tipc_max_nodes = CONFIG_TIPC_NODES; tipc_max_nodes = CONFIG_TIPC_NODES;
tipc_max_slaves = CONFIG_TIPC_SLAVE_NODES; tipc_max_slaves = CONFIG_TIPC_SLAVE_NODES;

1
net/tipc/core.h
View File

@ -184,7 +184,6 @@ void tipc_dump_dbg(struct print_buf *, const char *fmt, ...);
*/ */
extern u32 tipc_own_addr; extern u32 tipc_own_addr;
extern int tipc_max_zones;
extern int tipc_max_clusters; extern int tipc_max_clusters;
extern int tipc_max_nodes; extern int tipc_max_nodes;
extern int tipc_max_slaves; extern int tipc_max_slaves;

41
net/tipc/net.c
View File

@ -36,7 +36,6 @@
#include "core.h" #include "core.h"
#include "net.h" #include "net.h"
#include "zone.h"
#include "name_table.h" #include "name_table.h"
#include "name_distr.h" #include "name_distr.h"
#include "subscr.h" #include "subscr.h"
@ -111,46 +110,56 @@
*/ */
DEFINE_RWLOCK(tipc_net_lock); DEFINE_RWLOCK(tipc_net_lock);
static struct _zone *tipc_zones[256] = { NULL, }; struct network tipc_net;
struct network tipc_net = { tipc_zones };
struct tipc_node *tipc_net_select_remote_node(u32 addr, u32 ref) struct tipc_node *tipc_net_select_remote_node(u32 addr, u32 ref)
{ {
return tipc_zone_select_remote_node(tipc_net.zones[tipc_zone(addr)], addr, ref); struct cluster *c_ptr;
c_ptr = tipc_net.clusters[1];
if (!c_ptr)
return NULL;
return tipc_cltr_select_node(c_ptr, ref);
} }
u32 tipc_net_select_router(u32 addr, u32 ref) u32 tipc_net_select_router(u32 addr, u32 ref)
{ {
return tipc_zone_select_router(tipc_net.zones[tipc_zone(addr)], addr, ref); struct cluster *c_ptr;
c_ptr = tipc_net.clusters[1];
if (!c_ptr)
return 0;
return tipc_cltr_select_router(c_ptr, ref);
} }
void tipc_net_remove_as_router(u32 router) void tipc_net_remove_as_router(u32 router)
{ {
u32 z_num; u32 c_num;
for (z_num = 1; z_num <= tipc_max_zones; z_num++) { for (c_num = 1; c_num <= tipc_max_clusters; c_num++) {
if (!tipc_net.zones[z_num]) if (!tipc_net.clusters[c_num])
continue; continue;
tipc_zone_remove_as_router(tipc_net.zones[z_num], router); tipc_cltr_remove_as_router(tipc_net.clusters[c_num], router);
} }
} }
void tipc_net_send_external_routes(u32 dest) void tipc_net_send_external_routes(u32 dest)
{ {
u32 z_num; u32 c_num;
for (z_num = 1; z_num <= tipc_max_zones; z_num++) { for (c_num = 1; c_num <= tipc_max_clusters; c_num++) {
if (tipc_net.zones[z_num]) if (tipc_net.clusters[c_num])
tipc_zone_send_external_routes(tipc_net.zones[z_num], dest); tipc_cltr_send_ext_routes(tipc_net.clusters[c_num],
dest);
} }
} }
static void net_stop(void) static void net_stop(void)
{ {
u32 z_num; u32 c_num;
for (z_num = 1; z_num <= tipc_max_zones; z_num++) for (c_num = 1; c_num <= tipc_max_clusters; c_num++)
tipc_zone_delete(tipc_net.zones[z_num]); tipc_cltr_delete(tipc_net.clusters[c_num]);
} }
static void net_route_named_msg(struct sk_buff *buf) static void net_route_named_msg(struct sk_buff *buf)

8
net/tipc/net.h
View File

@ -37,15 +37,17 @@
#ifndef _TIPC_NET_H #ifndef _TIPC_NET_H
#define _TIPC_NET_H #define _TIPC_NET_H
struct _zone; struct cluster;
/** /**
* struct network - TIPC network structure * struct network - TIPC network structure
* @zones: array of pointers to all zones within network * @clusters: array of pointers to all clusters within zone
* @links: number of (unicast) links to cluster
*/ */
struct network { struct network {
struct _zone **zones; struct cluster *clusters[2]; /* currently limited to just 1 cluster */
u32 links;
}; };

7
net/tipc/node.c
View File

@ -257,7 +257,7 @@ struct tipc_node *tipc_node_attach_link(struct link *l_ptr)
if (!n_ptr->links[bearer_id]) { if (!n_ptr->links[bearer_id]) {
n_ptr->links[bearer_id] = l_ptr; n_ptr->links[bearer_id] = l_ptr;
tipc_net.zones[tipc_zone(l_ptr->addr)]->links++; tipc_net.links++;
n_ptr->link_cnt++; n_ptr->link_cnt++;
return n_ptr; return n_ptr;
} }
@ -271,7 +271,7 @@ struct tipc_node *tipc_node_attach_link(struct link *l_ptr)
void tipc_node_detach_link(struct tipc_node *n_ptr, struct link *l_ptr) void tipc_node_detach_link(struct tipc_node *n_ptr, struct link *l_ptr)
{ {
n_ptr->links[l_ptr->b_ptr->identity] = NULL; n_ptr->links[l_ptr->b_ptr->identity] = NULL;
tipc_net.zones[tipc_zone(l_ptr->addr)]->links--; tipc_net.links--;
n_ptr->link_cnt--; n_ptr->link_cnt--;
} }
@ -656,8 +656,7 @@ struct sk_buff *tipc_node_get_links(const void *req_tlv_area, int req_tlv_space)
/* Get space for all unicast links + multicast link */ /* Get space for all unicast links + multicast link */
payload_size = TLV_SPACE(sizeof(link_info)) * payload_size = TLV_SPACE(sizeof(link_info)) * (tipc_net.links + 1);
(tipc_net.zones[tipc_zone(tipc_own_addr)]->links + 1);
if (payload_size > 32768u) { if (payload_size > 32768u) {
read_unlock_bh(&tipc_net_lock); read_unlock_bh(&tipc_net_lock);
return tipc_cfg_reply_error_string(TIPC_CFG_NOT_SUPPORTED return tipc_cfg_reply_error_string(TIPC_CFG_NOT_SUPPORTED

1
net/tipc/node.h
View File

@ -38,7 +38,6 @@
#define _TIPC_NODE_H #define _TIPC_NODE_H
#include "node_subscr.h" #include "node_subscr.h"
#include "addr.h"
#include "cluster.h" #include "cluster.h"
#include "bearer.h" #include "bearer.h"

159
net/tipc/zone.c
View File

@ -1,159 +0,0 @@
/*
* net/tipc/zone.c: TIPC zone management routines
*
* Copyright (c) 2000-2006, Ericsson AB
* Copyright (c) 2005, Wind River Systems
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the names of the copyright holders nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* Alternatively, this software may be distributed under the terms of the
* GNU General Public License ("GPL") version 2 as published by the Free
* Software Foundation.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include "core.h"
#include "zone.h"
#include "cluster.h"
#include "node.h"
struct _zone *tipc_zone_create(u32 addr)
{
struct _zone *z_ptr;
u32 z_num;
if (!tipc_addr_domain_valid(addr)) {
err("Zone creation failed, invalid domain 0x%x\n", addr);
return NULL;
}
z_ptr = kzalloc(sizeof(*z_ptr), GFP_ATOMIC);
if (!z_ptr) {
warn("Zone creation failed, insufficient memory\n");
return NULL;
}
z_num = tipc_zone(addr);
z_ptr->addr = tipc_addr(z_num, 0, 0);
tipc_net.zones[z_num] = z_ptr;
return z_ptr;
}
void tipc_zone_delete(struct _zone *z_ptr)
{
u32 c_num;
if (!z_ptr)
return;
for (c_num = 1; c_num <= tipc_max_clusters; c_num++) {
tipc_cltr_delete(z_ptr->clusters[c_num]);
}
kfree(z_ptr);
}
void tipc_zone_attach_cluster(struct _zone *z_ptr, struct cluster *c_ptr)
{
u32 c_num = tipc_cluster(c_ptr->addr);
assert(c_ptr->addr);
assert(c_num <= tipc_max_clusters);
assert(z_ptr->clusters[c_num] == NULL);
z_ptr->clusters[c_num] = c_ptr;
}
void tipc_zone_remove_as_router(struct _zone *z_ptr, u32 router)
{
u32 c_num;
for (c_num = 1; c_num <= tipc_max_clusters; c_num++) {
if (z_ptr->clusters[c_num]) {
tipc_cltr_remove_as_router(z_ptr->clusters[c_num],
router);
}
}
}
void tipc_zone_send_external_routes(struct _zone *z_ptr, u32 dest)
{
u32 c_num;
for (c_num = 1; c_num <= tipc_max_clusters; c_num++) {
if (z_ptr->clusters[c_num]) {
if (in_own_cluster(z_ptr->addr))
continue;
tipc_cltr_send_ext_routes(z_ptr->clusters[c_num], dest);
}
}
}
struct tipc_node *tipc_zone_select_remote_node(struct _zone *z_ptr, u32 addr, u32 ref)
{
struct cluster *c_ptr;
struct tipc_node *n_ptr;
u32 c_num;
if (!z_ptr)
return NULL;
c_ptr = z_ptr->clusters[tipc_cluster(addr)];
if (!c_ptr)
return NULL;
n_ptr = tipc_cltr_select_node(c_ptr, ref);
if (n_ptr)
return n_ptr;
/* Links to any other clusters within this zone ? */
for (c_num = 1; c_num <= tipc_max_clusters; c_num++) {
c_ptr = z_ptr->clusters[c_num];
if (!c_ptr)
return NULL;
n_ptr = tipc_cltr_select_node(c_ptr, ref);
if (n_ptr)
return n_ptr;
}
return NULL;
}
u32 tipc_zone_select_router(struct _zone *z_ptr, u32 addr, u32 ref)
{
struct cluster *c_ptr;
u32 c_num;
u32 router;
if (!z_ptr)
return 0;
c_ptr = z_ptr->clusters[tipc_cluster(addr)];
router = c_ptr ? tipc_cltr_select_router(c_ptr, ref) : 0;
if (router)
return router;
/* Links to any other clusters within the zone? */
for (c_num = 1; c_num <= tipc_max_clusters; c_num++) {
c_ptr = z_ptr->clusters[c_num];
router = c_ptr ? tipc_cltr_select_router(c_ptr, ref) : 0;
if (router)
return router;
}
return 0;
}

70
net/tipc/zone.h
View File

@ -1,70 +0,0 @@
/*
* net/tipc/zone.h: Include file for TIPC zone management routines
*
* Copyright (c) 2000-2006, Ericsson AB
* Copyright (c) 2005-2006, Wind River Systems
* All rights reserved.
*
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* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the names of the copyright holders nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* Alternatively, this software may be distributed under the terms of the
* GNU General Public License ("GPL") version 2 as published by the Free
* Software Foundation.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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*/
#ifndef _TIPC_ZONE_H
#define _TIPC_ZONE_H
#include "node_subscr.h"
#include "net.h"
/**
* struct _zone - TIPC zone structure
* @addr: network address of zone
* @clusters: array of pointers to all clusters within zone
* @links: number of (unicast) links to zone
*/
struct _zone {
u32 addr;
struct cluster *clusters[2]; /* currently limited to just 1 cluster */
u32 links;
};
struct tipc_node *tipc_zone_select_remote_node(struct _zone *z_ptr, u32 addr, u32 ref);
u32 tipc_zone_select_router(struct _zone *z_ptr, u32 addr, u32 ref);
void tipc_zone_remove_as_router(struct _zone *z_ptr, u32 router);
void tipc_zone_send_external_routes(struct _zone *z_ptr, u32 dest);
struct _zone *tipc_zone_create(u32 addr);
void tipc_zone_delete(struct _zone *z_ptr);
void tipc_zone_attach_cluster(struct _zone *z_ptr, struct cluster *c_ptr);
static inline struct _zone *tipc_zone_find(u32 addr)
{
return tipc_net.zones[tipc_zone(addr)];
}
#endif