drivers/net/ethernet/microchip/sparx5/sparx5_qos.h

   1 /* SPDX-License-Identifier: GPL-2.0+ */
   2 /* Microchip Sparx5 Switch driver
   3  *
   4  * Copyright (c) 2022 Microchip Technology Inc. and its subsidiaries.
   5  */
   6
   7 #ifndef __SPARX5_QOS_H__
   8 #define __SPARX5_QOS_H__
   9
  10 #include <linux/netdevice.h>
  11
  12 /* Number of Layers */
  13 #define SPX5_HSCH_LAYER_CNT 3
  14
  15 /* Scheduling elements per layer */
  16 #define SPX5_HSCH_L0_SE_CNT 5040
  17 #define SPX5_HSCH_L1_SE_CNT 64
  18 #define SPX5_HSCH_L2_SE_CNT 64
  19
  20 /* Calculate Layer 0 Scheduler Element when using normal hierarchy */
  21 #define SPX5_HSCH_L0_GET_IDX(port, queue) ((64 * (port)) + (8 * (queue)))
  22
  23 /* Number of leak groups */
  24 #define SPX5_HSCH_LEAK_GRP_CNT 4
  25
  26 /* Scheduler modes */
  27 #define SPX5_SE_MODE_LINERATE 0
  28 #define SPX5_SE_MODE_DATARATE 1
  29
  30 /* Rate and burst */
  31 #define SPX5_SE_RATE_MAX 262143
  32 #define SPX5_SE_BURST_MAX 127
  33 #define SPX5_SE_RATE_MIN 1
  34 #define SPX5_SE_BURST_MIN 1
  35 #define SPX5_SE_BURST_UNIT 4096
  36
  37 /* Dwrr */
  38 #define SPX5_DWRR_COST_MAX 63
  39
  40 struct sparx5_shaper {
  41         u32 mode;
  42         u32 rate;
  43         u32 burst;
  44 };
  45
  46 struct sparx5_lg {
  47         u32 max_rate;
  48         u32 resolution;
  49         u32 leak_time;
  50         u32 max_ses;
  51 };
  52
  53 struct sparx5_layer {
  54         struct sparx5_lg leak_groups[SPX5_HSCH_LEAK_GRP_CNT];
  55 };
  56
  57 struct sparx5_dwrr {
  58         u32 count; /* Number of inputs running dwrr */
  59         u8 cost[SPX5_PRIOS];
  60 };
  61
  62 int sparx5_qos_init(struct sparx5 *sparx5);
  63
  64 /* Multi-Queue Priority */
  65 int sparx5_tc_mqprio_add(struct net_device *ndev, u8 num_tc);
  66 int sparx5_tc_mqprio_del(struct net_device *ndev);
  67
  68 /* Token Bucket Filter */
  69 struct tc_tbf_qopt_offload_replace_params;
  70 int sparx5_tc_tbf_add(struct sparx5_port *port,
  71                       struct tc_tbf_qopt_offload_replace_params *params,
  72                       u32 layer, u32 idx);
  73 int sparx5_tc_tbf_del(struct sparx5_port *port, u32 layer, u32 idx);
  74
  75 /* Enhanced Transmission Selection */
  76 struct tc_ets_qopt_offload_replace_params;
  77 int sparx5_tc_ets_add(struct sparx5_port *port,
  78                       struct tc_ets_qopt_offload_replace_params *params);
  79
  80 int sparx5_tc_ets_del(struct sparx5_port *port);
  81
  82 u32 sparx5_get_hsch_max_group_rate(int grp);
  83
  84 #endif  /* __SPARX5_QOS_H__ */