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| author | Ido Schimmel <idosch@nvidia.com> | 2020-11-04 15:30:28 +0200 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2020-11-06 11:28:49 -0800 |
| commit | e95f2592f633a334b175003f13f42d3c217dc657 (patch) | |
| tree | 189ae551c4ad7d0b2d6558d268d404abe335ca73 /net/ipv4 | |
| parent | 968a83f8cf6fd5a107289c57ee3197a52c72f02c (diff) | |
| download | lwn-e95f2592f633a334b175003f13f42d3c217dc657.tar.gz lwn-e95f2592f633a334b175003f13f42d3c217dc657.zip | |
nexthop: Allow setting "offload" and "trap" indications on nexthops
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>
Diffstat (limited to 'net/ipv4')
| -rw-r--r-- | net/ipv4/nexthop.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/net/ipv4/nexthop.c b/net/ipv4/nexthop.c index 1d66f2439063..d1a1600aee18 100644 --- a/net/ipv4/nexthop.c +++ b/net/ipv4/nexthop.c @@ -2081,6 +2081,27 @@ int unregister_nexthop_notifier(struct net *net, struct notifier_block *nb) } 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(); |