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authorLinus Torvalds <torvalds@linux-foundation.org>2010-03-02 18:55:08 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2010-03-02 18:55:08 +0300
commit6d6b89bd2e316b78d668f761d380837b81fa71ef (patch)
tree7e63c58611fc6181153526abbdafdd846ed1a19d /include/net/llc.h
parent13dda80e48439b446d0bc9bab34b91484bc8f533 (diff)
parent2507c05ff55fbf38326b08ed27eaed233bc75042 (diff)
downloadlinux-6d6b89bd2e316b78d668f761d380837b81fa71ef.tar.xz
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: (1341 commits) virtio_net: remove forgotten assignment be2net: fix tx completion polling sis190: fix cable detect via link status poll net: fix protocol sk_buff field bridge: Fix build error when IGMP_SNOOPING is not enabled bnx2x: Tx barriers and locks scm: Only support SCM_RIGHTS on unix domain sockets. vhost-net: restart tx poll on sk_sndbuf full vhost: fix get_user_pages_fast error handling vhost: initialize log eventfd context pointer vhost: logging thinko fix wireless: convert to use netdev_for_each_mc_addr ethtool: do not set some flags, if others failed ipoib: returned back addrlen check for mc addresses netlink: Adding inode field to /proc/net/netlink axnet_cs: add new id bridge: Make IGMP snooping depend upon BRIDGE. bridge: Add multicast count/interval sysfs entries bridge: Add hash elasticity/max sysfs entries bridge: Add multicast_snooping sysfs toggle ... Trivial conflicts in Documentation/feature-removal-schedule.txt
Diffstat (limited to 'include/net/llc.h')
-rw-r--r--include/net/llc.h39
1 files changed, 34 insertions, 5 deletions
diff --git a/include/net/llc.h b/include/net/llc.h
index 7940da1606e7..5503b74ab170 100644
--- a/include/net/llc.h
+++ b/include/net/llc.h
@@ -16,6 +16,9 @@
#include <linux/if_ether.h>
#include <linux/list.h>
#include <linux/spinlock.h>
+#include <linux/rculist_nulls.h>
+#include <linux/hash.h>
+#include <linux/jhash.h>
#include <asm/atomic.h>
@@ -31,6 +34,12 @@ struct llc_addr {
#define LLC_SAP_STATE_INACTIVE 1
#define LLC_SAP_STATE_ACTIVE 2
+#define LLC_SK_DEV_HASH_BITS 6
+#define LLC_SK_DEV_HASH_ENTRIES (1<<LLC_SK_DEV_HASH_BITS)
+
+#define LLC_SK_LADDR_HASH_BITS 6
+#define LLC_SK_LADDR_HASH_ENTRIES (1<<LLC_SK_LADDR_HASH_BITS)
+
/**
* struct llc_sap - Defines the SAP component
*
@@ -53,18 +62,38 @@ struct llc_sap {
struct net_device *orig_dev);
struct llc_addr laddr;
struct list_head node;
- struct {
- rwlock_t lock;
- struct hlist_head list;
- } sk_list;
+ spinlock_t sk_lock;
+ int sk_count;
+ struct hlist_nulls_head sk_laddr_hash[LLC_SK_LADDR_HASH_ENTRIES];
+ struct hlist_head sk_dev_hash[LLC_SK_DEV_HASH_ENTRIES];
};
+static inline
+struct hlist_head *llc_sk_dev_hash(struct llc_sap *sap, int ifindex)
+{
+ return &sap->sk_dev_hash[ifindex % LLC_SK_DEV_HASH_ENTRIES];
+}
+
+static inline
+u32 llc_sk_laddr_hashfn(struct llc_sap *sap, const struct llc_addr *laddr)
+{
+ return hash_32(jhash(laddr->mac, sizeof(laddr->mac), 0),
+ LLC_SK_LADDR_HASH_BITS);
+}
+
+static inline
+struct hlist_nulls_head *llc_sk_laddr_hash(struct llc_sap *sap,
+ const struct llc_addr *laddr)
+{
+ return &sap->sk_laddr_hash[llc_sk_laddr_hashfn(sap, laddr)];
+}
+
#define LLC_DEST_INVALID 0 /* Invalid LLC PDU type */
#define LLC_DEST_SAP 1 /* Type 1 goes here */
#define LLC_DEST_CONN 2 /* Type 2 goes here */
extern struct list_head llc_sap_list;
-extern rwlock_t llc_sap_list_lock;
+extern spinlock_t llc_sap_list_lock;
extern int llc_rcv(struct sk_buff *skb, struct net_device *dev,
struct packet_type *pt, struct net_device *orig_dev);