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net: sched: expose HW stats types per action used by drivers

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It may be up to the driver (in case ANY HW stats is passed) to select
which type of HW stats he is going to use. Add an infrastructure to
expose this information to user.

$ tc filter add dev enp3s0np1 ingress proto ip handle 1 pref 1 flower dst_ip 192.168.1.1 action drop
$ tc -s filter show dev enp3s0np1 ingress
filter protocol ip pref 1 flower chain 0
filter protocol ip pref 1 flower chain 0 handle 0x1
  eth_type ipv4
  dst_ip 192.168.1.1
  in_hw in_hw_count 2
        action order 1: gact action drop
         random type none pass val 0
         index 1 ref 1 bind 1 installed 10 sec used 10 sec
        Action statistics:
        Sent 0 bytes 0 pkt (dropped 0, overlimits 0 requeues 0)
        backlog 0b 0p requeues 0
        used_hw_stats immediate     <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jiri Pirko
2020-03-28 16:37:43 +01:00
committed by David S. Miller
parent 8953b0770f
commit 93a129eb8c
18 changed files with 54 additions and 17 deletions
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5
net/sched/act_api.c
View File

@@ -794,6 +794,11 @@ tcf_action_dump_1(struct sk_buff *skb, struct tc_action *a, int bind, int ref)
a->hw_stats, TCA_ACT_HW_STATS_ANY))
goto nla_put_failure;
if (a->used_hw_stats_valid &&
nla_put_bitfield32(skb, TCA_ACT_USED_HW_STATS,
a->used_hw_stats, TCA_ACT_HW_STATS_ANY))
goto nla_put_failure;
if (a->tcfa_flags &&
nla_put_bitfield32(skb, TCA_ACT_FLAGS,
a->tcfa_flags, a->tcfa_flags))

4
net/sched/cls_flower.c
View File

@@ -492,7 +492,9 @@ static void fl_hw_update_stats(struct tcf_proto *tp, struct cls_fl_filter *f,
tcf_exts_stats_update(&f->exts, cls_flower.stats.bytes,
cls_flower.stats.pkts,
cls_flower.stats.lastused);
cls_flower.stats.lastused,
cls_flower.stats.used_hw_stats,
cls_flower.stats.used_hw_stats_valid);
}
static void __fl_put(struct cls_fl_filter *f)

4
net/sched/cls_matchall.c
View File

@@ -338,7 +338,9 @@ static void mall_stats_hw_filter(struct tcf_proto *tp,
tc_setup_cb_call(block, TC_SETUP_CLSMATCHALL, &cls_mall, false, true);
tcf_exts_stats_update(&head->exts, cls_mall.stats.bytes,
cls_mall.stats.pkts, cls_mall.stats.lastused);
cls_mall.stats.pkts, cls_mall.stats.lastused,
cls_mall.stats.used_hw_stats,
cls_mall.stats.used_hw_stats_valid);
}
static int mall_dump(struct net *net, struct tcf_proto *tp, void *fh,