Commit 25660156 authored by Xingfeng Hu's avatar Xingfeng Hu Committed by David S. Miller
Browse files

flow_offload: add support for packet-per-second policing 



Allow flow_offload API to configure packet-per-second policing using rate
and burst parameters.

Dummy implementations of tcf_police_rate_pkt_ps() and
tcf_police_burst_pkt() are supplied which return 0, the unconfigured state.
This is to facilitate splitting the offload, driver, and TC code portion of
this feature into separate patches with the aim of providing a logical flow
for review. And the implementation of these helpers will be filled out by a
follow-up patch.

Signed-off-by: default avatarXingfeng Hu <xingfeng.hu@corigine.com>
Signed-off-by: default avatarSimon Horman <simon.horman@netronome.com>
Signed-off-by: default avatarLouis Peens <louis.peens@netronome.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 4849d9be

include/net/flow_offload.h

+2 −0
Original line number Diff line number Diff line
@@ -234,6 +234,8 @@ struct flow_action_entry { 
			u32			index;

			u32			burst;

			u64			rate_bytes_ps;

			u64			burst_pkt;

			u64			rate_pkt_ps;

			u32			mtu;

		} police;

		struct {				/* FLOW_ACTION_CT */

include/net/tc_act/tc_police.h

+12 −0
Original line number Diff line number Diff line
@@ -97,6 +97,18 @@ static inline u32 tcf_police_burst(const struct tc_action *act) 
	return burst;

}



static inline u64 tcf_police_rate_pkt_ps(const struct tc_action *act)

{

	/* Not implemented */

	return 0;

}



static inline u32 tcf_police_burst_pkt(const struct tc_action *act)

{

	/* Not implemented */

	return 0;

}



static inline u32 tcf_police_tcfp_mtu(const struct tc_action *act)

{

	struct tcf_police *police = to_police(act);

net/sched/cls_api.c

+3 −0
Original line number Diff line number Diff line
@@ -3661,6 +3661,9 @@ int tc_setup_flow_action(struct flow_action *flow_action, 
			entry->police.burst = tcf_police_burst(act);

			entry->police.rate_bytes_ps =

				tcf_police_rate_bytes_ps(act);

			entry->police.burst_pkt = tcf_police_burst_pkt(act);

			entry->police.rate_pkt_ps =

				tcf_police_rate_pkt_ps(act);

			entry->police.mtu = tcf_police_tcfp_mtu(act);

			entry->police.index = act->tcfa_index;

		} else if (is_tcf_ct(act)) {