Add a function that can be called by device drivers to set "offload" or
"trap" indication on nexthops following nexthop notifications.
Changes since RFC:
* s/nexthop_hw_flags_set/nexthop_set_hw_flags/
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
int register_nexthop_notifier(struct net *net, struct notifier_block *nb);
int unregister_nexthop_notifier(struct net *net, struct notifier_block *nb);
+void nexthop_set_hw_flags(struct net *net, u32 id, bool offload, bool trap);
/* caller is holding rcu or rtnl; no reference taken to nexthop */
struct nexthop *nexthop_find_by_id(struct net *net, u32 id);
}
EXPORT_SYMBOL(unregister_nexthop_notifier);
+void nexthop_set_hw_flags(struct net *net, u32 id, bool offload, bool trap)
+{
+ struct nexthop *nexthop;
+
+ rcu_read_lock();
+
+ nexthop = nexthop_find_by_id(net, id);
+ if (!nexthop)
+ goto out;
+
+ nexthop->nh_flags &= ~(RTNH_F_OFFLOAD | RTNH_F_TRAP);
+ if (offload)
+ nexthop->nh_flags |= RTNH_F_OFFLOAD;
+ if (trap)
+ nexthop->nh_flags |= RTNH_F_TRAP;
+
+out:
+ rcu_read_unlock();
+}
+EXPORT_SYMBOL(nexthop_set_hw_flags);
+
static void __net_exit nexthop_net_exit(struct net *net)
{
rtnl_lock();