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authorLinus Torvalds <torvalds@linux-foundation.org>2011-01-06 12:30:19 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2011-01-06 12:30:19 -0800
commitabb359450f20c32ae03039d8736f12b1d561caf5 (patch)
tree6e8723885feb66a138f19f0ff31615dc13a8d859 /net/tipc/bcast.c
parentcb600d2f83c854ec3d6660063e4466431999489b (diff)
parent4e3dbdb1392a83bd21a6ff8f6bc785495058d37c (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1436 commits) cassini: Use local-mac-address prom property for Cassini MAC address net: remove the duplicate #ifdef __KERNEL__ net: bridge: check the length of skb after nf_bridge_maybe_copy_header() netconsole: clarify stopping message netconsole: don't announce stopping if nothing happened cnic: Fix the type field in SPQ messages netfilter: fix export secctx error handling netfilter: fix the race when initializing nf_ct_expect_hash_rnd ipv4: IP defragmentation must be ECN aware net: r6040: Return proper error for r6040_init_one dcb: use after free in dcb_flushapp() dcb: unlock on error in dcbnl_ieee_get() net: ixp4xx_eth: Return proper error for eth_init_one include/linux/if_ether.h: Add #define ETH_P_LINK_CTL for HPNA and wlan local tunnel net: add POLLPRI to sock_def_readable() af_unix: Avoid socket->sk NULL OOPS in stream connect security hooks. net_sched: pfifo_head_drop problem mac80211: remove stray extern mac80211: implement off-channel TX using hw r-o-c offload mac80211: implement hardware offload for remain-on-channel ...
Diffstat (limited to 'net/tipc/bcast.c')
-rw-r--r--net/tipc/bcast.c50
1 files changed, 13 insertions, 37 deletions
diff --git a/net/tipc/bcast.c b/net/tipc/bcast.c
index 22a60fc9839..70ab5ef4876 100644
--- a/net/tipc/bcast.c
+++ b/net/tipc/bcast.c
@@ -36,25 +36,14 @@
*/
#include "core.h"
-#include "msg.h"
-#include "dbg.h"
#include "link.h"
-#include "net.h"
-#include "node.h"
#include "port.h"
-#include "addr.h"
-#include "node_subscr.h"
-#include "name_distr.h"
-#include "bearer.h"
-#include "name_table.h"
#include "bcast.h"
#define MAX_PKT_DEFAULT_MCAST 1500 /* bcast link max packet size (fixed) */
#define BCLINK_WIN_DEFAULT 20 /* bcast link window size (default) */
-#define BCLINK_LOG_BUF_SIZE 0
-
/*
* Loss rate for incoming broadcast frames; used to test retransmission code.
* Set to N to cause every N'th frame to be discarded; 0 => don't discard any.
@@ -114,11 +103,14 @@ struct bclink {
};
-static struct bcbearer *bcbearer = NULL;
-static struct bclink *bclink = NULL;
-static struct link *bcl = NULL;
+static struct bcbearer *bcbearer;
+static struct bclink *bclink;
+static struct link *bcl;
static DEFINE_SPINLOCK(bc_lock);
+/* broadcast-capable node map */
+struct tipc_node_map tipc_bcast_nmap;
+
const char tipc_bclink_name[] = "broadcast-link";
static void tipc_nmap_diff(struct tipc_node_map *nm_a,
@@ -204,9 +196,8 @@ static void bclink_retransmit_pkt(u32 after, u32 to)
struct sk_buff *buf;
buf = bcl->first_out;
- while (buf && less_eq(buf_seqno(buf), after)) {
+ while (buf && less_eq(buf_seqno(buf), after))
buf = buf->next;
- }
tipc_link_retransmit(bcl, buf, mod(to - after));
}
@@ -232,9 +223,8 @@ void tipc_bclink_acknowledge(struct tipc_node *n_ptr, u32 acked)
/* Skip over packets that node has previously acknowledged */
crs = bcl->first_out;
- while (crs && less_eq(buf_seqno(crs), n_ptr->bclink.acked)) {
+ while (crs && less_eq(buf_seqno(crs), n_ptr->bclink.acked))
crs = crs->next;
- }
/* Update packets that node is now acknowledging */
@@ -433,16 +423,14 @@ int tipc_bclink_send_msg(struct sk_buff *buf)
void tipc_bclink_recv_pkt(struct sk_buff *buf)
{
#if (TIPC_BCAST_LOSS_RATE)
- static int rx_count = 0;
+ static int rx_count;
#endif
struct tipc_msg *msg = buf_msg(buf);
- struct tipc_node* node = tipc_node_find(msg_prevnode(msg));
+ struct tipc_node *node = tipc_node_find(msg_prevnode(msg));
u32 next_in;
u32 seqno;
struct sk_buff *deferred;
- msg_dbg(msg, "<BC<<<");
-
if (unlikely(!node || !tipc_node_is_up(node) || !node->bclink.supported ||
(msg_mc_netid(msg) != tipc_net_id))) {
buf_discard(buf);
@@ -450,7 +438,6 @@ void tipc_bclink_recv_pkt(struct sk_buff *buf)
}
if (unlikely(msg_user(msg) == BCAST_PROTOCOL)) {
- msg_dbg(msg, "<BCNACK<<<");
if (msg_destnode(msg) == tipc_own_addr) {
tipc_node_lock(node);
tipc_bclink_acknowledge(node, msg_bcast_ack(msg));
@@ -574,8 +561,8 @@ static int tipc_bcbearer_send(struct sk_buff *buf,
if (likely(!msg_non_seq(buf_msg(buf)))) {
struct tipc_msg *msg;
- assert(tipc_cltr_bcast_nodes.count != 0);
- bcbuf_set_acks(buf, tipc_cltr_bcast_nodes.count);
+ assert(tipc_bcast_nmap.count != 0);
+ bcbuf_set_acks(buf, tipc_bcast_nmap.count);
msg = buf_msg(buf);
msg_set_non_seq(msg, 1);
msg_set_mc_netid(msg, tipc_net_id);
@@ -584,7 +571,7 @@ static int tipc_bcbearer_send(struct sk_buff *buf,
/* Send buffer over bearers until all targets reached */
- bcbearer->remains = tipc_cltr_bcast_nodes;
+ bcbearer->remains = tipc_bcast_nmap;
for (bp_index = 0; bp_index < MAX_BEARERS; bp_index++) {
struct bearer *p = bcbearer->bpairs[bp_index].primary;
@@ -782,7 +769,6 @@ int tipc_bclink_init(void)
bcbearer = kzalloc(sizeof(*bcbearer), GFP_ATOMIC);
bclink = kzalloc(sizeof(*bclink), GFP_ATOMIC);
if (!bcbearer || !bclink) {
- nomem:
warn("Multicast link creation failed, no memory\n");
kfree(bcbearer);
bcbearer = NULL;
@@ -807,14 +793,6 @@ int tipc_bclink_init(void)
bcl->state = WORKING_WORKING;
strlcpy(bcl->name, tipc_bclink_name, TIPC_MAX_LINK_NAME);
- if (BCLINK_LOG_BUF_SIZE) {
- char *pb = kmalloc(BCLINK_LOG_BUF_SIZE, GFP_ATOMIC);
-
- if (!pb)
- goto nomem;
- tipc_printbuf_init(&bcl->print_buf, pb, BCLINK_LOG_BUF_SIZE);
- }
-
return 0;
}
@@ -823,8 +801,6 @@ void tipc_bclink_stop(void)
spin_lock_bh(&bc_lock);
if (bcbearer) {
tipc_link_stop(bcl);
- if (BCLINK_LOG_BUF_SIZE)
- kfree(bcl->print_buf.buf);
bcl = NULL;
kfree(bclink);
bclink = NULL;