LXR linux/drivers/net/ethernet/samsung/sxgbe/sxgbe

   1/* SPDX-License-Identifier: GPL-2.0-only */
   2/* 10G controller driver for Samsung SoCs
   3 *
   4 * Copyright (C) 2013 Samsung Electronics Co., Ltd.
   5 *              http://www.samsung.com
   6 *
   7 * Author: Siva Reddy Kallam <siva.kallam@samsung.com>
   8 */
   9#ifndef __SXGBE_MTL_H__
  10#define __SXGBE_MTL_H__
  11
  12#define SXGBE_MTL_OPMODE_ESTMASK        0x3
  13#define SXGBE_MTL_OPMODE_RAAMASK        0x1
  14#define SXGBE_MTL_FCMASK                0x7
  15#define SXGBE_MTL_TX_FIFO_DIV           256
  16#define SXGBE_MTL_RX_FIFO_DIV           256
  17
  18#define SXGBE_MTL_RXQ_OP_FEP            BIT(4)
  19#define SXGBE_MTL_RXQ_OP_FUP            BIT(3)
  20#define SXGBE_MTL_ENABLE_FC             0x80
  21
  22#define ETS_WRR                         0xFFFFFF9F
  23#define ETS_RST                         0xFFFFFF9F
  24#define ETS_WFQ                         0x00000020
  25#define ETS_DWRR                        0x00000040
  26#define RAA_SP                          0xFFFFFFFB
  27#define RAA_WSP                         0x00000004
  28
  29#define RX_QUEUE_DYNAMIC                0x80808080
  30#define RX_FC_ACTIVE                    8
  31#define RX_FC_DEACTIVE                  13
  32
  33enum ttc_control {
  34        MTL_CONTROL_TTC_64 = 0x00000000,
  35        MTL_CONTROL_TTC_96 = 0x00000020,
  36        MTL_CONTROL_TTC_128 = 0x00000030,
  37        MTL_CONTROL_TTC_192 = 0x00000040,
  38        MTL_CONTROL_TTC_256 = 0x00000050,
  39        MTL_CONTROL_TTC_384 = 0x00000060,
  40        MTL_CONTROL_TTC_512 = 0x00000070,
  41};
  42
  43enum rtc_control {
  44        MTL_CONTROL_RTC_64 = 0x00000000,
  45        MTL_CONTROL_RTC_96 = 0x00000002,
  46        MTL_CONTROL_RTC_128 = 0x00000003,
  47};
  48
  49enum flow_control_th {
  50        MTL_FC_FULL_1K = 0x00000000,
  51        MTL_FC_FULL_2K = 0x00000001,
  52        MTL_FC_FULL_4K = 0x00000002,
  53        MTL_FC_FULL_5K = 0x00000003,
  54        MTL_FC_FULL_6K = 0x00000004,
  55        MTL_FC_FULL_8K = 0x00000005,
  56        MTL_FC_FULL_16K = 0x00000006,
  57        MTL_FC_FULL_24K = 0x00000007,
  58};
  59
  60struct sxgbe_mtl_ops {
  61        void (*mtl_init)(void __iomem *ioaddr, unsigned int etsalg,
  62                         unsigned int raa);
  63
  64        void (*mtl_set_txfifosize)(void __iomem *ioaddr, int queue_num,
  65                                   int mtl_fifo);
  66
  67        void (*mtl_set_rxfifosize)(void __iomem *ioaddr, int queue_num,
  68                                   int queue_fifo);
  69
  70        void (*mtl_enable_txqueue)(void __iomem *ioaddr, int queue_num);
  71
  72        void (*mtl_disable_txqueue)(void __iomem *ioaddr, int queue_num);
  73
  74        void (*set_tx_mtl_mode)(void __iomem *ioaddr, int queue_num,
  75                                int tx_mode);
  76
  77        void (*set_rx_mtl_mode)(void __iomem *ioaddr, int queue_num,
  78                                int rx_mode);
  79
  80        void (*mtl_dynamic_dma_rxqueue)(void __iomem *ioaddr);
  81
  82        void (*mtl_fc_active)(void __iomem *ioaddr, int queue_num,
  83                              int threshold);
  84
  85        void (*mtl_fc_deactive)(void __iomem *ioaddr, int queue_num,
  86                                int threshold);
  87
  88        void (*mtl_fc_enable)(void __iomem *ioaddr, int queue_num);
  89
  90        void (*mtl_fep_enable)(void __iomem *ioaddr, int queue_num);
  91
  92        void (*mtl_fep_disable)(void __iomem *ioaddr, int queue_num);
  93
  94        void (*mtl_fup_enable)(void __iomem *ioaddr, int queue_num);
  95
  96        void (*mtl_fup_disable)(void __iomem *ioaddr, int queue_num);
  97};
  98
  99const struct sxgbe_mtl_ops *sxgbe_get_mtl_ops(void);
 100
 101#endif /* __SXGBE_MTL_H__ */
 102