Commit 1db82abf authored by Daniel Machon's avatar Daniel Machon Committed by David S. Miller
Browse files

net: microchip: sparx5: add support for service policers 



Add initial API for configuring policers. This patch add support for
service policers.

Signed-off-by: default avatarDaniel Machon <daniel.machon@microchip.com>
Reviewed-by: default avatarSimon Horman <simon.horman@corigine.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 9bf50889

drivers/net/ethernet/microchip/sparx5/Makefile

+1 −1
Original line number Diff line number Diff line
@@ -10,7 +10,7 @@ sparx5-switch-y := sparx5_main.o sparx5_packet.o \ 
 sparx5_switchdev.o sparx5_calendar.o sparx5_ethtool.o sparx5_fdma.o \

 sparx5_ptp.o sparx5_pgid.o sparx5_tc.o sparx5_qos.o \

 sparx5_vcap_impl.o sparx5_vcap_ag_api.o sparx5_tc_flower.o \

 sparx5_tc_matchall.o sparx5_pool.o sparx5_sdlb.o

 sparx5_tc_matchall.o sparx5_pool.o sparx5_sdlb.o sparx5_police.o



sparx5-switch-$(CONFIG_SPARX5_DCB) += sparx5_dcb.o

sparx5-switch-$(CONFIG_DEBUG_FS) += sparx5_vcap_debugfs.o

drivers/net/ethernet/microchip/sparx5/sparx5_main.h

+16 −0
Original line number Diff line number Diff line
@@ -455,6 +455,22 @@ int sparx5_sdlb_group_del(struct sparx5 *sparx5, u32 group, u32 idx); 


void sparx5_sdlb_group_init(struct sparx5 *sparx5, u64 max_rate, u32 min_burst,

			    u32 frame_size, u32 idx);

/* sparx5_police.c */

enum {

	/* More policer types will be added later */

	SPX5_POL_SERVICE

};



struct sparx5_policer {

	u32 type;

	u32 idx;

	u64 rate;

	u32 burst;

	u32 group;

	u8 event_mask;

};



int sparx5_policer_conf_set(struct sparx5 *sparx5, struct sparx5_policer *pol);



/* Clock period in picoseconds */

static inline u32 sparx5_clk_period(enum sparx5_core_clockfreq cclock)

drivers/net/ethernet/microchip/sparx5/sparx5_police.c

0 → 100644
+53 −0
Original line number Diff line number Diff line 
// SPDX-License-Identifier: GPL-2.0+

/* Microchip Sparx5 Switch driver

 *

 * Copyright (c) 2023 Microchip Technology Inc. and its subsidiaries.

 */



#include "sparx5_main_regs.h"

#include "sparx5_main.h"



static int sparx5_policer_service_conf_set(struct sparx5 *sparx5,

					   struct sparx5_policer *pol)

{

	u32 idx, pup_tokens, max_pup_tokens, burst, thres;

	struct sparx5_sdlb_group *g;

	u64 rate;



	g = &sdlb_groups[pol->group];

	idx = pol->idx;



	rate = pol->rate * 1000;

	burst = pol->burst;



	pup_tokens = sparx5_sdlb_pup_token_get(sparx5, g->pup_interval, rate);

	max_pup_tokens =

		sparx5_sdlb_pup_token_get(sparx5, g->pup_interval, g->max_rate);



	thres = DIV_ROUND_UP(burst, g->min_burst);



	spx5_wr(ANA_AC_SDLB_PUP_TOKENS_PUP_TOKENS_SET(pup_tokens), sparx5,

		ANA_AC_SDLB_PUP_TOKENS(idx, 0));



	spx5_rmw(ANA_AC_SDLB_INH_CTRL_PUP_TOKENS_MAX_SET(max_pup_tokens),

		 ANA_AC_SDLB_INH_CTRL_PUP_TOKENS_MAX, sparx5,

		 ANA_AC_SDLB_INH_CTRL(idx, 0));



	spx5_rmw(ANA_AC_SDLB_THRES_THRES_SET(thres), ANA_AC_SDLB_THRES_THRES,

		 sparx5, ANA_AC_SDLB_THRES(idx, 0));



	return 0;

}



int sparx5_policer_conf_set(struct sparx5 *sparx5, struct sparx5_policer *pol)

{

	/* More policer types will be added later */

	switch (pol->type) {

	case SPX5_POL_SERVICE:

		return sparx5_policer_service_conf_set(sparx5, pol);

	default:

		break;

	}



	return 0;

}