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authorAmir Vadai <amirva@mellanox.com>2016-05-13 12:55:37 +0000
committerDavid S. Miller <davem@davemloft.net>2016-05-16 13:43:50 -0400
commit10cbc6843446165ee250e1ee80dc19ee325f1e6d (patch)
tree9a281054241598e1a44a6dfd3826e7d1e2657f98
parent9fea47d93bcc98946a6eca0f019ced337564a344 (diff)
downloadlinux-10cbc6843446165ee250e1ee80dc19ee325f1e6d.tar.bz2
net/sched: cls_flower: Hardware offloaded filters statistics support
Introduce a new command in ndo_setup_tc() for hardware offloaded filters, to call the NIC driver, and make it update the statistics. This will be done before dumping the filter and its statistics. Signed-off-by: Amir Vadai <amirva@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--include/net/pkt_cls.h1
-rw-r--r--net/sched/cls_flower.c21
2 files changed, 22 insertions, 0 deletions
diff --git a/include/net/pkt_cls.h b/include/net/pkt_cls.h
index 8b4893878cf4..0f7efa88f210 100644
--- a/include/net/pkt_cls.h
+++ b/include/net/pkt_cls.h
@@ -426,6 +426,7 @@ static inline bool tc_flags_valid(u32 flags)
enum tc_fl_command {
TC_CLSFLOWER_REPLACE,
TC_CLSFLOWER_DESTROY,
+ TC_CLSFLOWER_STATS,
};
struct tc_cls_flower_offload {
diff --git a/net/sched/cls_flower.c b/net/sched/cls_flower.c
index 2181ffc76638..730aacafc22d 100644
--- a/net/sched/cls_flower.c
+++ b/net/sched/cls_flower.c
@@ -210,6 +210,25 @@ static void fl_hw_replace_filter(struct tcf_proto *tp,
dev->netdev_ops->ndo_setup_tc(dev, tp->q->handle, tp->protocol, &tc);
}
+static void fl_hw_update_stats(struct tcf_proto *tp, struct cls_fl_filter *f)
+{
+ struct net_device *dev = tp->q->dev_queue->dev;
+ struct tc_cls_flower_offload offload = {0};
+ struct tc_to_netdev tc;
+
+ if (!tc_should_offload(dev, 0))
+ return;
+
+ offload.command = TC_CLSFLOWER_STATS;
+ offload.cookie = (unsigned long)f;
+ offload.exts = &f->exts;
+
+ tc.type = TC_SETUP_CLSFLOWER;
+ tc.cls_flower = &offload;
+
+ dev->netdev_ops->ndo_setup_tc(dev, tp->q->handle, tp->protocol, &tc);
+}
+
static bool fl_destroy(struct tcf_proto *tp, bool force)
{
struct cls_fl_head *head = rtnl_dereference(tp->root);
@@ -662,6 +681,8 @@ static int fl_dump(struct net *net, struct tcf_proto *tp, unsigned long fh,
goto nla_put_failure;
}
+ fl_hw_update_stats(tp, f);
+
if (fl_dump_key_val(skb, key->eth.dst, TCA_FLOWER_KEY_ETH_DST,
mask->eth.dst, TCA_FLOWER_KEY_ETH_DST_MASK,
sizeof(key->eth.dst)) ||