diff mbox series

[net-next,v2,03/16] ipv6: Extend notifier info for multipath routes

Message ID 20190618151258.23023-4-idosch@idosch.org
State Accepted
Delegated to: David Miller
Headers show
Series mlxsw: Improve IPv6 route insertion rate | expand

Commit Message

Ido Schimmel June 18, 2019, 3:12 p.m. UTC 
From: Ido Schimmel <idosch@mellanox.com>

Extend the IPv6 FIB notifier info with number of sibling routes being
notified.

This will later allow listeners to process one notification for a
multipath routes instead of N, where N is the number of nexthops.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
---
 include/net/ip6_fib.h |  7 +++++++
 net/ipv6/ip6_fib.c    | 17 +++++++++++++++++
 2 files changed, 24 insertions(+)

Comments

David Ahern June 18, 2019, 3:26 p.m. UTC | #1 
On 6/18/19 9:12 AM, Ido Schimmel wrote:
> From: Ido Schimmel <idosch@mellanox.com>
> 
> Extend the IPv6 FIB notifier info with number of sibling routes being
> notified.
> 
> This will later allow listeners to process one notification for a
> multipath routes instead of N, where N is the number of nexthops.
> 
> Signed-off-by: Ido Schimmel <idosch@mellanox.com>
> Acked-by: Jiri Pirko <jiri@mellanox.com>
> ---
>  include/net/ip6_fib.h |  7 +++++++
>  net/ipv6/ip6_fib.c    | 17 +++++++++++++++++
>  2 files changed, 24 insertions(+)
> 

Reviewed-by: David Ahern <dsahern@gmail.com>
diff mbox series

Patch

diff --git a/include/net/ip6_fib.h b/include/net/ip6_fib.h
index 1e92f1500b87..7c3d5ab05879 100644
--- a/include/net/ip6_fib.h
+++ b/include/net/ip6_fib.h
@@ -377,6 +377,8 @@  typedef struct rt6_info *(*pol_lookup_t)(struct net *,
 struct fib6_entry_notifier_info {
 	struct fib_notifier_info info; /* must be first */
 	struct fib6_info *rt;
+	unsigned int nsiblings;
+	bool multipath_rt;
 };
 
 /*
@@ -450,6 +452,11 @@  int call_fib6_entry_notifiers(struct net *net,
 			      enum fib_event_type event_type,
 			      struct fib6_info *rt,
 			      struct netlink_ext_ack *extack);
+int call_fib6_multipath_entry_notifiers(struct net *net,
+					enum fib_event_type event_type,
+					struct fib6_info *rt,
+					unsigned int nsiblings,
+					struct netlink_ext_ack *extack);
 void fib6_rt_update(struct net *net, struct fib6_info *rt,
 		    struct nl_info *info);
 void inet6_rt_notify(int event, struct fib6_info *rt, struct nl_info *info,
diff --git a/net/ipv6/ip6_fib.c b/net/ipv6/ip6_fib.c
index 1cce2082279c..df08ba8fe6fc 100644
--- a/net/ipv6/ip6_fib.c
+++ b/net/ipv6/ip6_fib.c
@@ -381,6 +381,23 @@  int call_fib6_entry_notifiers(struct net *net,
 	return call_fib6_notifiers(net, event_type, &info.info);
 }
 
+int call_fib6_multipath_entry_notifiers(struct net *net,
+					enum fib_event_type event_type,
+					struct fib6_info *rt,
+					unsigned int nsiblings,
+					struct netlink_ext_ack *extack)
+{
+	struct fib6_entry_notifier_info info = {
+		.info.extack = extack,
+		.rt = rt,
+		.nsiblings = nsiblings,
+		.multipath_rt = true,
+	};
+
+	rt->fib6_table->fib_seq++;
+	return call_fib6_notifiers(net, event_type, &info.info);
+}
+
 struct fib6_dump_arg {
 	struct net *net;
 	struct notifier_block *nb;