netdev - [PATCH net-next 07/13] net/sched: add police action to the hardware intermediate representation

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Message-Id: <20190504114628.14755-8-jakub.kicinski@netronome.com>
Date:   Sat,  4 May 2019 04:46:22 -0700
From:   Jakub Kicinski <jakub.kicinski@...ronome.com>
To:     davem@...emloft.net
Cc:     netdev@...r.kernel.org, oss-drivers@...ronome.com,
        jiri@...nulli.us, xiyou.wangcong@...il.com, idosch@...lanox.com,
        f.fainelli@...il.com, andrew@...n.ch, vivien.didelot@...il.com,
        gerlitz.or@...il.com, simon.horman@...ronome.com,
        Pieter Jansen van Vuuren 
        <pieter.jansenvanvuuren@...ronome.com>,
        Jakub Kicinski <jakub.kicinski@...ronome.com>
Subject: [PATCH net-next 07/13] net/sched: add police action to the hardware intermediate representation

From: Pieter Jansen van Vuuren <pieter.jansenvanvuuren@...ronome.com>

Add police action to the hardware intermediate representation which
would subsequently allow it to be used by drivers for offload.

Signed-off-by: Pieter Jansen van Vuuren <pieter.jansenvanvuuren@...ronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@...ronome.com>
---
 include/net/flow_offload.h | 5 +++++
 net/sched/cls_api.c        | 6 ++++++
 2 files changed, 11 insertions(+)

diff --git a/include/net/flow_offload.h b/include/net/flow_offload.h
index 3bf67dd64be5..6200900434e1 100644
--- a/include/net/flow_offload.h
+++ b/include/net/flow_offload.h
@@ -119,6 +119,7 @@ enum flow_action_id {
 	FLOW_ACTION_WAKE,
 	FLOW_ACTION_QUEUE,
 	FLOW_ACTION_SAMPLE,
+	FLOW_ACTION_POLICE,
 };
 
 /* This is mirroring enum pedit_header_type definition for easy mapping between
@@ -164,6 +165,10 @@ struct flow_action_entry {
 			u32			trunc_size;
 			bool			truncate;
 		} sample;
+		struct {				/* FLOW_ACTION_POLICE */
+			s64			burst;
+			u64			rate_bytes_ps;
+		} police;
 	};
 };
 
diff --git a/net/sched/cls_api.c b/net/sched/cls_api.c
index f8ee2d78654a..d4699156974a 100644
--- a/net/sched/cls_api.c
+++ b/net/sched/cls_api.c
@@ -37,6 +37,7 @@
 #include <net/tc_act/tc_tunnel_key.h>
 #include <net/tc_act/tc_csum.h>
 #include <net/tc_act/tc_gact.h>
+#include <net/tc_act/tc_police.h>
 #include <net/tc_act/tc_sample.h>
 #include <net/tc_act/tc_skbedit.h>
 
@@ -3265,6 +3266,11 @@ int tc_setup_flow_action(struct flow_action *flow_action,
 			entry->sample.trunc_size = tcf_sample_trunc_size(act);
 			entry->sample.truncate = tcf_sample_truncate(act);
 			entry->sample.rate = tcf_sample_rate(act);
+		} else if (is_tcf_police(act)) {
+			entry->id = FLOW_ACTION_POLICE;
+			entry->police.burst = tcf_police_tcfp_burst(act);
+			entry->police.rate_bytes_ps =
+				tcf_police_rate_bytes_ps(act);
 		} else {
 			goto err_out;
 		}
-- 
2.21.0