From: Ido Schimmel <idosch@mellanox.com>
Date: Wed, 2 Aug 2017 09:56:05 +0200
Subject: mlxsw: spectrum_router: Refresh offload indication upon group refresh
Patch-mainline: v4.14-rc1
Git-commit: 77d964e66cfad007db14077fc952ce13bdaa2733
References: bsc#1112374

Now that we provide offload indication using the nexthop's flags we must
refresh the offload indication whenever the offload state within the
group changes.

This didn't matter until now, as offload indication was provided using
the FIB info flags and multipath routes were marked as offloaded as long
as one of the nexthops was offloaded.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Tested-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c |   22 ++++++++++++++++++
 1 file changed, 22 insertions(+)

--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
@@ -1653,6 +1653,24 @@ mlxsw_sp_nexthop_fib_entries_update(stru
 }
 
 static void
+mlxsw_sp_fib_entry_offload_refresh(struct mlxsw_sp_fib_entry *fib_entry,
+				   enum mlxsw_reg_ralue_op op, int err);
+
+static void
+mlxsw_sp_nexthop_fib_entries_refresh(struct mlxsw_sp_nexthop_group *nh_grp)
+{
+	enum mlxsw_reg_ralue_op op = MLXSW_REG_RALUE_OP_WRITE_WRITE;
+	struct mlxsw_sp_fib_entry *fib_entry;
+
+	list_for_each_entry(fib_entry, &nh_grp->fib_list, nexthop_group_node) {
+		if (!mlxsw_sp_fib_node_entry_is_first(fib_entry->fib_node,
+						      fib_entry))
+			continue;
+		mlxsw_sp_fib_entry_offload_refresh(fib_entry, op, 0);
+	}
+}
+
+static void
 mlxsw_sp_nexthop_group_refresh(struct mlxsw_sp *mlxsw_sp,
 			       struct mlxsw_sp_nexthop_group *nh_grp)
 {
@@ -1739,6 +1757,10 @@ mlxsw_sp_nexthop_group_refresh(struct ml
 		dev_warn(mlxsw_sp->bus_info->dev, "Failed to mass-update adjacency index for nexthop group.\n");
 		goto set_trap;
 	}
+
+	/* Offload state within the group changed, so update the flags. */
+	mlxsw_sp_nexthop_fib_entries_refresh(nh_grp);
+
 	return;
 
 set_trap: