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authorGilad Naaman <gnaaman@drivenets.com>2024-11-07 16:04:43 +0000
committerJakub Kicinski <kuba@kernel.org>2024-11-09 13:22:57 -0800
commitf7f52738637f4361c108cad36e23ee98959a9006 (patch)
tree937f05d064e392b6dc14002925032cc28b9c35e8 /include/linux
parenta01a67ab2fffa7458354f0a666a6d550fa2b82fc (diff)
neighbour: Create netdev->neighbour association
Create a mapping between a netdev and its neighoburs, allowing for much cheaper flushes. Signed-off-by: Gilad Naaman <gnaaman@drivenets.com> Reviewed-by: Eric Dumazet <edumazet@google.com> Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com> Link: https://patch.msgid.link/20241107160444.2913124-7-gnaaman@drivenets.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/netdevice.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 3c552b648b27..df4483598628 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -52,6 +52,7 @@
#include <net/net_trackers.h>
#include <net/net_debug.h>
#include <net/dropreason-core.h>
+#include <net/neighbour_tables.h>
struct netpoll_info;
struct device;
@@ -2032,6 +2033,9 @@ enum netdev_reg_state {
* @napi_defer_hard_irqs: If not zero, provides a counter that would
* allow to avoid NIC hard IRQ, on busy queues.
*
+ * @neighbours: List heads pointing to this device's neighbours'
+ * dev_list, one per address-family.
+ *
* FIXME: cleanup struct net_device such that network protocol info
* moves out.
*/
@@ -2440,6 +2444,9 @@ struct net_device {
*/
struct net_shaper_hierarchy *net_shaper_hierarchy;
#endif
+
+ struct hlist_head neighbours[NEIGH_NR_TABLES];
+
u8 priv[] ____cacheline_aligned
__counted_by(priv_len);
} ____cacheline_aligned;