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-rw-r--r--net/tipc/link.c41
-rw-r--r--net/tipc/link.h1
-rw-r--r--net/tipc/name_distr.c76
-rw-r--r--net/tipc/name_distr.h2
-rw-r--r--net/tipc/node.c13
5 files changed, 48 insertions, 85 deletions
diff --git a/net/tipc/link.c b/net/tipc/link.c
index a235b245f682..367b0f5886f8 100644
--- a/net/tipc/link.c
+++ b/net/tipc/link.c
@@ -1033,47 +1033,6 @@ static void tipc_link_sync_rcv(struct tipc_node *n, struct sk_buff *buf)
}
/*
- * tipc_link_names_xmit - send name table entries to new neighbor
- *
- * Send routine for bulk delivery of name table messages when contact
- * with a new neighbor occurs. No link congestion checking is performed
- * because name table messages *must* be delivered. The messages must be
- * small enough not to require fragmentation.
- * Called without any locks held.
- */
-void tipc_link_names_xmit(struct list_head *message_list, u32 dest)
-{
- struct tipc_node *n_ptr;
- struct tipc_link *l_ptr;
- struct sk_buff *buf;
- struct sk_buff *temp_buf;
-
- if (list_empty(message_list))
- return;
-
- n_ptr = tipc_node_find(dest);
- if (n_ptr) {
- tipc_node_lock(n_ptr);
- l_ptr = n_ptr->active_links[0];
- if (l_ptr) {
- /* convert circular list to linear list */
- ((struct sk_buff *)message_list->prev)->next = NULL;
- link_add_chain_to_outqueue(l_ptr,
- (struct sk_buff *)message_list->next, 0);
- tipc_link_push_queue(l_ptr);
- INIT_LIST_HEAD(message_list);
- }
- tipc_node_unlock(n_ptr);
- }
-
- /* discard the messages if they couldn't be sent */
- list_for_each_safe(buf, temp_buf, ((struct sk_buff *)message_list)) {
- list_del((struct list_head *)buf);
- kfree_skb(buf);
- }
-}
-
-/*
* tipc_link_push_packet: Push one unsent packet to the media
*/
static u32 tipc_link_push_packet(struct tipc_link *l_ptr)
diff --git a/net/tipc/link.h b/net/tipc/link.h
index 227ff8120897..04a59c58d385 100644
--- a/net/tipc/link.h
+++ b/net/tipc/link.h
@@ -228,7 +228,6 @@ void tipc_link_reset(struct tipc_link *l_ptr);
void tipc_link_reset_list(unsigned int bearer_id);
int tipc_link_xmit(struct sk_buff *buf, u32 dest, u32 selector);
int tipc_link_xmit2(struct sk_buff *buf, u32 dest, u32 selector);
-void tipc_link_names_xmit(struct list_head *message_list, u32 dest);
int __tipc_link_xmit(struct tipc_link *l_ptr, struct sk_buff *buf);
int __tipc_link_xmit2(struct tipc_link *link, struct sk_buff *buf);
int tipc_link_send_buf(struct tipc_link *l_ptr, struct sk_buff *buf);
diff --git a/net/tipc/name_distr.c b/net/tipc/name_distr.c
index 8ce730984aa1..d16f9475fa76 100644
--- a/net/tipc/name_distr.c
+++ b/net/tipc/name_distr.c
@@ -101,24 +101,22 @@ static struct sk_buff *named_prepare_buf(u32 type, u32 size, u32 dest)
void named_cluster_distribute(struct sk_buff *buf)
{
- struct sk_buff *buf_copy;
- struct tipc_node *n_ptr;
- struct tipc_link *l_ptr;
+ struct sk_buff *obuf;
+ struct tipc_node *node;
+ u32 dnode;
rcu_read_lock();
- list_for_each_entry_rcu(n_ptr, &tipc_node_list, list) {
- tipc_node_lock(n_ptr);
- l_ptr = n_ptr->active_links[n_ptr->addr & 1];
- if (l_ptr) {
- buf_copy = skb_copy(buf, GFP_ATOMIC);
- if (!buf_copy) {
- tipc_node_unlock(n_ptr);
- break;
- }
- msg_set_destnode(buf_msg(buf_copy), n_ptr->addr);
- __tipc_link_xmit(l_ptr, buf_copy);
- }
- tipc_node_unlock(n_ptr);
+ list_for_each_entry_rcu(node, &tipc_node_list, list) {
+ dnode = node->addr;
+ if (in_own_node(dnode))
+ continue;
+ if (!tipc_node_active_links(node))
+ continue;
+ obuf = skb_copy(buf, GFP_ATOMIC);
+ if (!obuf)
+ break;
+ msg_set_destnode(buf_msg(obuf), dnode);
+ tipc_link_xmit2(obuf, dnode, dnode);
}
rcu_read_unlock();
@@ -175,34 +173,44 @@ struct sk_buff *tipc_named_withdraw(struct publication *publ)
return buf;
}
-/*
+/**
* named_distribute - prepare name info for bulk distribution to another node
+ * @msg_list: list of messages (buffers) to be returned from this function
+ * @dnode: node to be updated
+ * @pls: linked list of publication items to be packed into buffer chain
*/
-static void named_distribute(struct list_head *message_list, u32 node,
- struct publ_list *pls, u32 max_item_buf)
+static void named_distribute(struct list_head *msg_list, u32 dnode,
+ struct publ_list *pls)
{
struct publication *publ;
struct sk_buff *buf = NULL;
struct distr_item *item = NULL;
- u32 left = 0;
- u32 rest = pls->size * ITEM_SIZE;
+ uint dsz = pls->size * ITEM_SIZE;
+ uint msg_dsz = (tipc_node_get_mtu(dnode, 0) / ITEM_SIZE) * ITEM_SIZE;
+ uint rem = dsz;
+ uint msg_rem = 0;
list_for_each_entry(publ, &pls->list, local_list) {
+ /* Prepare next buffer: */
if (!buf) {
- left = (rest <= max_item_buf) ? rest : max_item_buf;
- rest -= left;
- buf = named_prepare_buf(PUBLICATION, left, node);
+ msg_rem = min_t(uint, rem, msg_dsz);
+ rem -= msg_rem;
+ buf = named_prepare_buf(PUBLICATION, msg_rem, dnode);
if (!buf) {
pr_warn("Bulk publication failure\n");
return;
}
item = (struct distr_item *)msg_data(buf_msg(buf));
}
+
+ /* Pack publication into message: */
publ_to_item(item, publ);
item++;
- left -= ITEM_SIZE;
- if (!left) {
- list_add_tail((struct list_head *)buf, message_list);
+ msg_rem -= ITEM_SIZE;
+
+ /* Append full buffer to list: */
+ if (!msg_rem) {
+ list_add_tail((struct list_head *)buf, msg_list);
buf = NULL;
}
}
@@ -211,16 +219,20 @@ static void named_distribute(struct list_head *message_list, u32 node,
/**
* tipc_named_node_up - tell specified node about all publications by this node
*/
-void tipc_named_node_up(u32 max_item_buf, u32 node)
+void tipc_named_node_up(u32 dnode)
{
- LIST_HEAD(message_list);
+ LIST_HEAD(msg_list);
+ struct sk_buff *buf_chain;
read_lock_bh(&tipc_nametbl_lock);
- named_distribute(&message_list, node, &publ_cluster, max_item_buf);
- named_distribute(&message_list, node, &publ_zone, max_item_buf);
+ named_distribute(&msg_list, dnode, &publ_cluster);
+ named_distribute(&msg_list, dnode, &publ_zone);
read_unlock_bh(&tipc_nametbl_lock);
- tipc_link_names_xmit(&message_list, node);
+ /* Convert circular list to linear list and send: */
+ buf_chain = (struct sk_buff *)msg_list.next;
+ ((struct sk_buff *)msg_list.prev)->next = NULL;
+ tipc_link_xmit2(buf_chain, dnode, dnode);
}
/**
diff --git a/net/tipc/name_distr.h b/net/tipc/name_distr.h
index b2eed4ec1526..8afe32b7fc9a 100644
--- a/net/tipc/name_distr.h
+++ b/net/tipc/name_distr.h
@@ -70,7 +70,7 @@ struct distr_item {
struct sk_buff *tipc_named_publish(struct publication *publ);
struct sk_buff *tipc_named_withdraw(struct publication *publ);
void named_cluster_distribute(struct sk_buff *buf);
-void tipc_named_node_up(u32 max_item_buf, u32 node);
+void tipc_named_node_up(u32 dnode);
void tipc_named_rcv(struct sk_buff *buf);
void tipc_named_reinit(void);
diff --git a/net/tipc/node.c b/net/tipc/node.c
index d959343043fd..f7069299943f 100644
--- a/net/tipc/node.c
+++ b/net/tipc/node.c
@@ -474,8 +474,6 @@ int tipc_node_get_linkname(u32 bearer_id, u32 addr, char *linkname, size_t len)
void tipc_node_unlock(struct tipc_node *node)
{
LIST_HEAD(nsub_list);
- struct tipc_link *link;
- int pkt_sz = 0;
u32 addr = 0;
if (likely(!node->action_flags)) {
@@ -488,18 +486,13 @@ void tipc_node_unlock(struct tipc_node *node)
node->action_flags &= ~TIPC_NOTIFY_NODE_DOWN;
}
if (node->action_flags & TIPC_NOTIFY_NODE_UP) {
- link = node->active_links[0];
node->action_flags &= ~TIPC_NOTIFY_NODE_UP;
- if (link) {
- pkt_sz = ((link->max_pkt - INT_H_SIZE) / ITEM_SIZE) *
- ITEM_SIZE;
- addr = node->addr;
- }
+ addr = node->addr;
}
spin_unlock_bh(&node->lock);
if (!list_empty(&nsub_list))
tipc_nodesub_notify(&nsub_list);
- if (pkt_sz)
- tipc_named_node_up(pkt_sz, addr);
+ if (addr)
+ tipc_named_node_up(addr);
}