netdev - [PATCH net-next V2 4/6] net/sched: cls_matchall: Reflect HW offloading status

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Message-Id: <1487082640-24813-5-git-send-email-ogerlitz@mellanox.com>
Date:   Tue, 14 Feb 2017 16:30:38 +0200
From:   Or Gerlitz <ogerlitz@...lanox.com>
To:     "David S. Miller" <davem@...emloft.net>
Cc:     Jakub Kicinski <jakub.kicinski@...ronome.com>,
        John Fastabend <john.r.fastabend@...el.com>,
        Jamal Hadi Salim <jhs@...atatu.com>,
        Roi Dayan <roid@...lanox.com>,
        Paul Blakey <paulb@...lanox.com>, netdev@...r.kernel.org,
        Or Gerlitz <ogerlitz@...lanox.com>
Subject: [PATCH net-next V2 4/6] net/sched: cls_matchall: Reflect HW offloading status

Matchall support for the "in hw" offloading flags.

Signed-off-by: Or Gerlitz <ogerlitz@...lanox.com>
Reviewed-by: Amir Vadai <amir@...ai.me>
---
 net/sched/cls_matchall.c | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/net/sched/cls_matchall.c b/net/sched/cls_matchall.c
index ce2f7d4..20fda37 100644
--- a/net/sched/cls_matchall.c
+++ b/net/sched/cls_matchall.c
@@ -56,6 +56,7 @@ static int mall_replace_hw_filter(struct tcf_proto *tp,
 	struct net_device *dev = tp->q->dev_queue->dev;
 	struct tc_to_netdev offload;
 	struct tc_cls_matchall_offload mall_offload = {0};
+	int err;
 
 	offload.type = TC_SETUP_MATCHALL;
 	offload.cls_mall = &mall_offload;
@@ -63,8 +64,12 @@ static int mall_replace_hw_filter(struct tcf_proto *tp,
 	offload.cls_mall->exts = &head->exts;
 	offload.cls_mall->cookie = cookie;
 
-	return dev->netdev_ops->ndo_setup_tc(dev, tp->q->handle, tp->protocol,
-					     &offload);
+	err = dev->netdev_ops->ndo_setup_tc(dev, tp->q->handle, tp->protocol,
+					    &offload);
+	if (!err)
+		head->flags |= TCA_CLS_FLAGS_IN_HW;
+
+	return err;
 }
 
 static void mall_destroy_hw_filter(struct tcf_proto *tp,
@@ -194,6 +199,9 @@ static int mall_change(struct net *net, struct sk_buff *in_skb,
 		}
 	}
 
+	if (!(tc_in_hw(new->flags)))
+		new->flags |= TCA_CLS_FLAGS_NOT_IN_HW;
+
 	*arg = (unsigned long) head;
 	rcu_assign_pointer(tp->root, new);
 	if (head)
-- 
2.3.7