[RFCv2 11/16] net: cls_bpf: allow offloaded filters to update stats
From: Jakub Kicinski <hidden>
Date: 2016-08-26 18:08:56
Subsystem:
bpf [general] (safe dynamic programs and tools), bpf [networking] (tcx & tc bpf, sock_addr), networking [general], tc subsystem, the rest · Maintainers:
Alexei Starovoitov, Daniel Borkmann, Andrii Nakryiko, Eduard Zingerman, Kumar Kartikeya Dwivedi, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Jamal Hadi Salim, Jiri Pirko, Linus Torvalds
Call into offloaded filters to update stats. Signed-off-by: Jakub Kicinski <redacted> --- include/net/pkt_cls.h | 1 + net/sched/cls_bpf.c | 11 +++++++++++ 2 files changed, 12 insertions(+)
diff --git a/include/net/pkt_cls.h b/include/net/pkt_cls.h
index 0a4a51f339b4..462dc53dd8cc 100644
--- a/include/net/pkt_cls.h
+++ b/include/net/pkt_cls.h@@ -490,6 +490,7 @@ enum tc_clsbpf_command { TC_CLSBPF_ADD, TC_CLSBPF_REPLACE, TC_CLSBPF_DESTROY, + TC_CLSBPF_STATS, }; struct tc_cls_bpf_offload {
diff --git a/net/sched/cls_bpf.c b/net/sched/cls_bpf.c
index 630f296f5a90..f1095c6211c9 100644
--- a/net/sched/cls_bpf.c
+++ b/net/sched/cls_bpf.c@@ -223,6 +223,15 @@ static void cls_bpf_stop_offload(struct tcf_proto *tp, prog->offloaded = false; } +static void cls_bpf_offload_update_stats(struct tcf_proto *tp, + struct cls_bpf_prog *prog) +{ + if (!prog->offloaded) + return; + + cls_bpf_offload_cmd(tp, prog, TC_CLSBPF_STATS); +} + static int cls_bpf_init(struct tcf_proto *tp) { struct cls_bpf_head *head;
@@ -577,6 +586,8 @@ static int cls_bpf_dump(struct net *net, struct tcf_proto *tp, unsigned long fh, tm->tcm_handle = prog->handle; + cls_bpf_offload_update_stats(tp, prog); + nest = nla_nest_start(skb, TCA_OPTIONS); if (nest == NULL) goto nla_put_failure;
--
1.9.1