From: Ido Schimmel <ido...@mellanox.com>
Both listeners - mlxsw and netdevsim - of IPv6 FIB notifications are now
ready to handle IPv6 multipath notifications.
Therefore, stop ignoring such notifications in both drivers and stop
sending notification for each added / deleted nexthop.
v2:
* Remove 'multipath_rt' from 'struct fib6_entry_notifier_info'
Signed-off-by: Ido Schimmel <ido...@mellanox.com>
Acked-by: Jiri Pirko <j...@mellanox.com>
---
.../ethernet/mellanox/mlxsw/spectrum_router.c | 2 --
drivers/net/netdevsim/fib.c | 7 -----
include/net/ip6_fib.h | 1 -
net/ipv6/ip6_fib.c | 29 +++++++++++--------
4 files changed, 17 insertions(+), 22 deletions(-)
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
index 92ec65188e9a..e618be7ce6c6 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
@@ -6294,8 +6294,6 @@ static int mlxsw_sp_router_fib_event(struct
notifier_block *nb,
NL_SET_ERR_MSG_MOD(info->extack, "IPv6 route
with nexthop objects is not supported");
return notifier_from_errno(-EINVAL);
}
- if (fen6_info->multipath_rt)
- return NOTIFY_DONE;
}
break;
}
diff --git a/drivers/net/netdevsim/fib.c b/drivers/net/netdevsim/fib.c
index 83ba5113210d..8c57ba747772 100644
--- a/drivers/net/netdevsim/fib.c
+++ b/drivers/net/netdevsim/fib.c
@@ -190,13 +190,6 @@ static int nsim_fib_event_nb(struct notifier_block *nb,
unsigned long event,
case FIB_EVENT_ENTRY_ADD: /* fall through */
case FIB_EVENT_ENTRY_DEL:
- if (info->family == AF_INET6) {
- struct fib6_entry_notifier_info *fen6_info = ptr;
-
- if (fen6_info->multipath_rt)
- return NOTIFY_DONE;
- }
-
err = nsim_fib_event(data, info,
event == FIB_EVENT_ENTRY_ADD);
break;
diff --git a/include/net/ip6_fib.h b/include/net/ip6_fib.h
index 7c3d5ab05879..87331f2c4af0 100644
--- a/include/net/ip6_fib.h
+++ b/include/net/ip6_fib.h
@@ -378,7 +378,6 @@ struct fib6_entry_notifier_info {
struct fib_notifier_info info; /* must be first */
struct fib6_info *rt;
unsigned int nsiblings;
- bool multipath_rt;
};
/*
diff --git a/net/ipv6/ip6_fib.c b/net/ipv6/ip6_fib.c
index df08ba8fe6fc..1d16a01eccf5 100644
--- a/net/ipv6/ip6_fib.c
+++ b/net/ipv6/ip6_fib.c
@@ -391,7 +391,6 @@ int call_fib6_multipath_entry_notifiers(struct net *net,
.info.extack = extack,
.rt = rt,
.nsiblings = nsiblings,
- .multipath_rt = true,
};
rt->fib6_table->fib_seq++;
@@ -1140,11 +1139,13 @@ static int fib6_add_rt2node(struct fib6_node *fn,
struct fib6_info *rt,
add:
nlflags |= NLM_F_CREATE;
- err = call_fib6_entry_notifiers(info->nl_net,
- FIB_EVENT_ENTRY_ADD,
- rt, extack);
- if (err)
- return err;
+ if (!info->skip_notify_kernel) {
+ err = call_fib6_entry_notifiers(info->nl_net,
+ FIB_EVENT_ENTRY_ADD,
+ rt, extack);
+ if (err)
+ return err;
+ }
rcu_assign_pointer(rt->fib6_next, iter);
fib6_info_hold(rt);
@@ -1169,11 +1170,13 @@ static int fib6_add_rt2node(struct fib6_node *fn,
struct fib6_info *rt,
return -ENOENT;
}
- err = call_fib6_entry_notifiers(info->nl_net,
- FIB_EVENT_ENTRY_REPLACE,
- rt, extack);
- if (err)
- return err;
+ if (!info->skip_notify_kernel) {
+ err = call_fib6_entry_notifiers(info->nl_net,
+ FIB_EVENT_ENTRY_REPLACE,
+ rt, extack);
+ if (err)
+ return err;
+ }
fib6_info_hold(rt);
rcu_assign_pointer(rt->fib6_node, fn);
@@ -1856,9 +1859,11 @@ static void fib6_del_route(struct fib6_table *table,
struct fib6_node *fn,
fib6_purge_rt(rt, fn, net);
- call_fib6_entry_notifiers(net, FIB_EVENT_ENTRY_DEL, rt, NULL);
+ if (!info->skip_notify_kernel)
+ call_fib6_entry_notifiers(net, FIB_EVENT_ENTRY_DEL, rt, NULL);
if (!info->skip_notify)
inet6_rt_notify(RTM_DELROUTE, rt, info, 0);
+
fib6_info_release(rt);
}
--
2.20.1
