diff mbox series

[net-next,6/6] mlxsw: spectrum_router: Update multipath hash parameters upon netevents

Message ID 20171102161410.12171-7-jiri@resnulli.us
State Accepted, archived
Delegated to: David Miller
Headers show
Series mlxsw: Align multipath hash parameters with kernel's | expand

Commit Message

Jiri Pirko Nov. 2, 2017, 4:14 p.m. UTC 
From: Ido Schimmel <idosch@mellanox.com>

Make sure the device and the kernel are performing the multipath hash
according to the same parameters by updating the device whenever the
relevant netevent is generated.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
---
 .../net/ethernet/mellanox/mlxsw/spectrum_router.c  | 31 +++++++++++++++++++++-
 1 file changed, 30 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
index fe99d24..d657f01 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
@@ -2078,15 +2078,29 @@  static void mlxsw_sp_router_neigh_event_work(struct work_struct *work)
 	kfree(net_work);
 }
 
-static int mlxsw_sp_router_netevent_event(struct notifier_block *unused,
+static int mlxsw_sp_mp_hash_init(struct mlxsw_sp *mlxsw_sp);
+
+static void mlxsw_sp_router_mp_hash_event_work(struct work_struct *work)
+{
+	struct mlxsw_sp_netevent_work *net_work =
+		container_of(work, struct mlxsw_sp_netevent_work, work);
+	struct mlxsw_sp *mlxsw_sp = net_work->mlxsw_sp;
+
+	mlxsw_sp_mp_hash_init(mlxsw_sp);
+	kfree(net_work);
+}
+
+static int mlxsw_sp_router_netevent_event(struct notifier_block *nb,
 					  unsigned long event, void *ptr)
 {
 	struct mlxsw_sp_netevent_work *net_work;
 	struct mlxsw_sp_port *mlxsw_sp_port;
+	struct mlxsw_sp_router *router;
 	struct mlxsw_sp *mlxsw_sp;
 	unsigned long interval;
 	struct neigh_parms *p;
 	struct neighbour *n;
+	struct net *net;
 
 	switch (event) {
 	case NETEVENT_DELAY_PROBE_TIME_UPDATE:
@@ -2138,6 +2152,21 @@  static int mlxsw_sp_router_netevent_event(struct notifier_block *unused,
 		mlxsw_core_schedule_work(&net_work->work);
 		mlxsw_sp_port_dev_put(mlxsw_sp_port);
 		break;
+	case NETEVENT_MULTIPATH_HASH_UPDATE:
+		net = ptr;
+
+		if (!net_eq(net, &init_net))
+			return NOTIFY_DONE;
+
+		net_work = kzalloc(sizeof(*net_work), GFP_ATOMIC);
+		if (!net_work)
+			return NOTIFY_BAD;
+
+		router = container_of(nb, struct mlxsw_sp_router, netevent_nb);
+		INIT_WORK(&net_work->work, mlxsw_sp_router_mp_hash_event_work);
+		net_work->mlxsw_sp = router->mlxsw_sp;
+		mlxsw_core_schedule_work(&net_work->work);
+		break;
 	}
 
 	return NOTIFY_DONE;