1// SPDX-License-Identifier: GPL-2.0+
 2/* Microchip Sparx5 Switch driver
 3 *
 4 * Copyright (c) 2023 Microchip Technology Inc. and its subsidiaries.
 5 */
 6
 7#include "sparx5_main_regs.h"
 8#include "sparx5_main.h"
 9
10static int sparx5_policer_service_conf_set(struct sparx5 *sparx5,
11					   struct sparx5_policer *pol)
12{
13	u32 idx, pup_tokens, max_pup_tokens, burst, thres;
14	struct sparx5_sdlb_group *g;
15	u64 rate;
16
17	g = &sdlb_groups[pol->group];
18	idx = pol->idx;
19
20	rate = pol->rate * 1000;
21	burst = pol->burst;
22
23	pup_tokens = sparx5_sdlb_pup_token_get(sparx5, g->pup_interval, rate);
24	max_pup_tokens =
25		sparx5_sdlb_pup_token_get(sparx5, g->pup_interval, g->max_rate);
26
27	thres = DIV_ROUND_UP(burst, g->min_burst);
28
29	spx5_wr(ANA_AC_SDLB_PUP_TOKENS_PUP_TOKENS_SET(pup_tokens), sparx5,
30		ANA_AC_SDLB_PUP_TOKENS(idx, 0));
31
32	spx5_rmw(ANA_AC_SDLB_INH_CTRL_PUP_TOKENS_MAX_SET(max_pup_tokens),
33		 ANA_AC_SDLB_INH_CTRL_PUP_TOKENS_MAX, sparx5,
34		 ANA_AC_SDLB_INH_CTRL(idx, 0));
35
36	spx5_rmw(ANA_AC_SDLB_THRES_THRES_SET(thres), ANA_AC_SDLB_THRES_THRES,
37		 sparx5, ANA_AC_SDLB_THRES(idx, 0));
38
39	return 0;
40}
41
42int sparx5_policer_conf_set(struct sparx5 *sparx5, struct sparx5_policer *pol)
43{
44	/* More policer types will be added later */
45	switch (pol->type) {
46	case SPX5_POL_SERVICE:
47		return sparx5_policer_service_conf_set(sparx5, pol);
48	default:
49		break;
50	}
51
52	return 0;
53}