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 10 static 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 42 int 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 } 54