net/sched: extend matchall offload for hardware statistics
Introduce a new command for matchall classifiers that allows hardware
to update statistics.
Signed-off-by: Pieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/sched/cls_matchall.c b/net/sched/cls_matchall.c
index 87bff17..da916f3 100644
--- a/net/sched/cls_matchall.c
+++ b/net/sched/cls_matchall.c
@@ -321,6 +321,23 @@ static int mall_reoffload(struct tcf_proto *tp, bool add, tc_setup_cb_t *cb,
return 0;
}
+static void mall_stats_hw_filter(struct tcf_proto *tp,
+ struct cls_mall_head *head,
+ unsigned long cookie)
+{
+ struct tc_cls_matchall_offload cls_mall = {};
+ struct tcf_block *block = tp->chain->block;
+
+ tc_cls_common_offload_init(&cls_mall.common, tp, head->flags, NULL);
+ cls_mall.command = TC_CLSMATCHALL_STATS;
+ cls_mall.cookie = cookie;
+
+ tc_setup_cb_call(block, TC_SETUP_CLSMATCHALL, &cls_mall, false);
+
+ tcf_exts_stats_update(&head->exts, cls_mall.stats.bytes,
+ cls_mall.stats.pkts, cls_mall.stats.lastused);
+}
+
static int mall_dump(struct net *net, struct tcf_proto *tp, void *fh,
struct sk_buff *skb, struct tcmsg *t, bool rtnl_held)
{
@@ -332,6 +349,9 @@ static int mall_dump(struct net *net, struct tcf_proto *tp, void *fh,
if (!head)
return skb->len;
+ if (!tc_skip_hw(head->flags))
+ mall_stats_hw_filter(tp, head, (unsigned long)head);
+
t->tcm_handle = head->handle;
nest = nla_nest_start_noflag(skb, TCA_OPTIONS);