[PATCH 17/18] net/sched: cls_u32: Reflect HW offload status

[Talat Batheesh]

From: Or Gerlitz <ogerlitz at mellanox.com>

BugLink: https://bugs.launchpad.net/ubuntu/1668019

U32 support for the "in hw" offloading flags.

Signed-off-by: Or Gerlitz <ogerlitz at mellanox.com>
Reviewed-by: Amir Vadai <amir at vadai.me>
Signed-off-by: David S. Miller <davem at davemloft.net>
(cherry picked from commit 24d3dc6d27eae19f422a5e216e25d3a16628d4ff)
Signed-off-by: Talat Batheesh <talatb at mellanox.com>
---
 net/sched/cls_u32.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/net/sched/cls_u32.c b/net/sched/cls_u32.c
index ae83c3ae..0f250a7 100644
--- a/net/sched/cls_u32.c
+++ b/net/sched/cls_u32.c
@@ -524,6 +524,10 @@ static int u32_replace_hw_knode(struct tcf_proto *tp, struct tc_u_knode *n,
 
 	err = dev->netdev_ops->ndo_setup_tc(dev, tp->q->handle,
 					    tp->protocol, &offload);
+
+	if (!err)
+		n->flags |= TCA_CLS_FLAGS_IN_HW;
+
 	if (tc_skip_sw(flags))
 		return err;
 
@@ -896,6 +900,9 @@ static int u32_change(struct net *net, struct sk_buff *in_skb,
 			return err;
 		}
 
+		if (!tc_in_hw(new->flags))
+			new->flags |= TCA_CLS_FLAGS_NOT_IN_HW;
+
 		u32_replace_knode(tp, tp_c, new);
 		tcf_unbind_filter(tp, &n->res);
 		call_rcu(&n->rcu, u32_delete_key_rcu);
@@ -1015,6 +1022,9 @@ static int u32_change(struct net *net, struct sk_buff *in_skb,
 		if (err)
 			goto errhw;
 
+		if (!tc_in_hw(n->flags))
+			n->flags |= TCA_CLS_FLAGS_NOT_IN_HW;
+
 		ins = &ht->ht[TC_U32_HASH(handle)];
 		for (pins = rtnl_dereference(*ins); pins;
 		     ins = &pins->next, pins = rtnl_dereference(*ins))
-- 
2.5.0