netdev - [net-next PATCH v1 11/11] net: rocker: implement delete flow routine

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Date:	Wed, 31 Dec 2014 11:50:29 -0800
From:	John Fastabend <john.fastabend@...il.com>
To:	tgraf@...g.ch, sfeldma@...il.com, jiri@...nulli.us,
	jhs@...atatu.com, simon.horman@...ronome.com
Cc:	netdev@...r.kernel.org, davem@...emloft.net, andy@...yhouse.net
Subject: [net-next PATCH v1 11/11] net: rocker: implement delete flow routine

Signed-off-by: John Fastabend <john.r.fastabend@...el.com>
---
 drivers/net/ethernet/rocker/rocker.c |   39 +++++++++++++++++++++++++++++++++-
 1 file changed, 38 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/rocker/rocker.c b/drivers/net/ethernet/rocker/rocker.c
index 4ca95da..fb1e3eb 100644
--- a/drivers/net/ethernet/rocker/rocker.c
+++ b/drivers/net/ethernet/rocker/rocker.c
@@ -4523,7 +4523,44 @@ static int rocker_set_flows(struct net_device *dev,
 static int rocker_del_flows(struct net_device *dev,
 			    struct net_flow_flow *flow)
 {
-	return -EOPNOTSUPP;
+	struct rocker_port *rocker_port = netdev_priv(dev);
+	struct rocker_flow_tbl_entry *entry;
+	struct rocker_group_tbl_entry *group;
+	struct hlist_node *tmp;
+	int bkt, err = -EEXIST;
+	unsigned long flags;
+
+	spin_lock_irqsave(&rocker_port->rocker->flow_tbl_lock, flags);
+	hash_for_each_safe(rocker_port->rocker->flow_tbl,
+			   bkt, tmp, entry, entry) {
+		if (rocker_goto_value(flow->table_id) != entry->key.tbl_id ||
+		    flow->uid != entry->cookie)
+			continue;
+
+		hash_del(&entry->entry);
+		err = 0;
+		break;
+	}
+	spin_unlock_irqrestore(&rocker_port->rocker->flow_tbl_lock, flags);
+
+	if (!err)
+		return err;
+
+	spin_lock_irqsave(&rocker_port->rocker->group_tbl_lock, flags);
+	hash_for_each_safe(rocker_port->rocker->group_tbl,
+			   bkt, tmp, group, entry) {
+		if (rocker_goto_value(flow->table_id) !=
+			ROCKER_GROUP_TYPE_GET(group->group_id) ||
+		    flow->uid != group->cookie)
+			continue;
+
+		hash_del(&group->entry);
+		err = 0;
+		break;
+	}
+	spin_unlock_irqrestore(&rocker_port->rocker->group_tbl_lock, flags);
+
+	return err;
 }
 
 static int rocker_ig_port_to_flow(struct rocker_flow_tbl_key *key,

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