linux-kernel - [RFC,net-next 8/9] net: qos: police action add index for tc flower offloading

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Date:   Fri,  6 Mar 2020 20:56:06 +0800
From:   Po Liu <Po.Liu@....com>
To:     davem@...emloft.net, linux-kernel@...r.kernel.org,
        netdev@...r.kernel.org
Cc:     vinicius.gomes@...el.com, po.liu@....com, claudiu.manoil@....com,
        vladimir.oltean@....com, alexandru.marginean@....com,
        xiaoliang.yang_1@....com, roy.zang@....com, mingkai.hu@....com,
        jerry.huang@....com, leoyang.li@....com, michael.chan@...adcom.com,
        vishal@...lsio.com, saeedm@...lanox.com, leon@...nel.org,
        jiri@...lanox.com, idosch@...lanox.com,
        alexandre.belloni@...tlin.com, UNGLinuxDriver@...rochip.com,
        kuba@...nel.org, jhs@...atatu.com, xiyou.wangcong@...il.com,
        john.hurley@...ronome.com, simon.horman@...ronome.com,
        pieter.jansenvanvuuren@...ronome.com, pablo@...filter.org,
        moshe@...lanox.com, ivan.khoronzhuk@...aro.org,
        m-karicheri2@...com, andre.guedes@...ux.intel.com,
        jakub.kicinski@...ronome.com, Po Liu <Po.Liu@....com>
Subject: [RFC,net-next  8/9] net: qos: police action add index for tc flower offloading

Hardware may own many entries for police flow. So that make one(or
 multi) flow to be policed by one hardware entry. This patch add the
police action index provide to the driver side make it mapping the
driver hardware entry index.

Signed-off-by: Po Liu <Po.Liu@....com>
---
 include/net/flow_offload.h | 1 +
 net/sched/cls_api.c        | 1 +
 2 files changed, 2 insertions(+)

diff --git a/include/net/flow_offload.h b/include/net/flow_offload.h
index 54df87328edc..3b78b15ed20b 100644
--- a/include/net/flow_offload.h
+++ b/include/net/flow_offload.h
@@ -201,6 +201,7 @@ struct flow_action_entry {
 			bool			truncate;
 		} sample;
 		struct {				/* FLOW_ACTION_POLICE */
+			u32			index;
 			s64			burst;
 			u64			rate_bytes_ps;
 			u32			mtu;
diff --git a/net/sched/cls_api.c b/net/sched/cls_api.c
index 363d3991793d..ce846a9dadc1 100644
--- a/net/sched/cls_api.c
+++ b/net/sched/cls_api.c
@@ -3584,6 +3584,7 @@ int tc_setup_flow_action(struct flow_action *flow_action,
 			entry->police.rate_bytes_ps =
 				tcf_police_rate_bytes_ps(act);
 			entry->police.mtu = tcf_police_mtu(act);
+			entry->police.index = act->tcfa_index;
 		} else if (is_tcf_ct(act)) {
 			entry->id = FLOW_ACTION_CT;
 			entry->ct.action = tcf_ct_action(act);
-- 
2.17.1