drivers/net/ethernet/huawei/hinic/hinic_hw_if.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  * Huawei HiNIC PCI Express Linux driver
   4  * Copyright(c) 2017 Huawei Technologies Co., Ltd
   5  */
   6
   7 #ifndef HINIC_HW_IF_H
   8 #define HINIC_HW_IF_H
   9
  10 #include <linux/pci.h>
  11 #include <linux/io.h>
  12 #include <linux/types.h>
  13 #include <asm/byteorder.h>
  14
  15 #define HINIC_DMA_ATTR_ST_SHIFT                                 0
  16 #define HINIC_DMA_ATTR_AT_SHIFT                                 8
  17 #define HINIC_DMA_ATTR_PH_SHIFT                                 10
  18 #define HINIC_DMA_ATTR_NO_SNOOPING_SHIFT                        12
  19 #define HINIC_DMA_ATTR_TPH_EN_SHIFT                             13
  20
  21 #define HINIC_DMA_ATTR_ST_MASK                                  0xFF
  22 #define HINIC_DMA_ATTR_AT_MASK                                  0x3
  23 #define HINIC_DMA_ATTR_PH_MASK                                  0x3
  24 #define HINIC_DMA_ATTR_NO_SNOOPING_MASK                         0x1
  25 #define HINIC_DMA_ATTR_TPH_EN_MASK                              0x1
  26
  27 #define HINIC_DMA_ATTR_SET(val, member)                         \
  28         (((u32)(val) & HINIC_DMA_ATTR_##member##_MASK) <<       \
  29          HINIC_DMA_ATTR_##member##_SHIFT)
  30
  31 #define HINIC_DMA_ATTR_CLEAR(val, member)                       \
  32         ((val) & (~(HINIC_DMA_ATTR_##member##_MASK              \
  33          << HINIC_DMA_ATTR_##member##_SHIFT)))
  34
  35 #define HINIC_FA0_FUNC_IDX_SHIFT                                0
  36 #define HINIC_FA0_PF_IDX_SHIFT                                  10
  37 #define HINIC_FA0_PCI_INTF_IDX_SHIFT                            14
  38 /* reserved members - off 16 */
  39 #define HINIC_FA0_FUNC_TYPE_SHIFT                               24
  40
  41 #define HINIC_FA0_FUNC_IDX_MASK                                 0x3FF
  42 #define HINIC_FA0_PF_IDX_MASK                                   0xF
  43 #define HINIC_FA0_PCI_INTF_IDX_MASK                             0x3
  44 #define HINIC_FA0_FUNC_TYPE_MASK                                0x1
  45
  46 #define HINIC_FA0_GET(val, member)                              \
  47         (((val) >> HINIC_FA0_##member##_SHIFT) & HINIC_FA0_##member##_MASK)
  48
  49 #define HINIC_FA1_AEQS_PER_FUNC_SHIFT                           8
  50 /* reserved members - off 10 */
  51 #define HINIC_FA1_CEQS_PER_FUNC_SHIFT                           12
  52 /* reserved members - off 15 */
  53 #define HINIC_FA1_IRQS_PER_FUNC_SHIFT                           20
  54 #define HINIC_FA1_DMA_ATTR_PER_FUNC_SHIFT                       24
  55 /* reserved members - off 27 */
  56 #define HINIC_FA1_INIT_STATUS_SHIFT                             30
  57
  58 #define HINIC_FA1_AEQS_PER_FUNC_MASK                            0x3
  59 #define HINIC_FA1_CEQS_PER_FUNC_MASK                            0x7
  60 #define HINIC_FA1_IRQS_PER_FUNC_MASK                            0xF
  61 #define HINIC_FA1_DMA_ATTR_PER_FUNC_MASK                        0x7
  62 #define HINIC_FA1_INIT_STATUS_MASK                              0x1
  63
  64 #define HINIC_FA1_GET(val, member)                              \
  65         (((val) >> HINIC_FA1_##member##_SHIFT) & HINIC_FA1_##member##_MASK)
  66
  67 #define HINIC_FA4_OUTBOUND_STATE_SHIFT                          0
  68 #define HINIC_FA4_DB_STATE_SHIFT                                1
  69
  70 #define HINIC_FA4_OUTBOUND_STATE_MASK                           0x1
  71 #define HINIC_FA4_DB_STATE_MASK                                 0x1
  72
  73 #define HINIC_FA4_GET(val, member)                              \
  74         (((val) >> HINIC_FA4_##member##_SHIFT) & HINIC_FA4_##member##_MASK)
  75
  76 #define HINIC_FA4_SET(val, member)                              \
  77         ((((u32)val) & HINIC_FA4_##member##_MASK) << HINIC_FA4_##member##_SHIFT)
  78
  79 #define HINIC_FA4_CLEAR(val, member)                            \
  80         ((val) & (~(HINIC_FA4_##member##_MASK << HINIC_FA4_##member##_SHIFT)))
  81
  82 #define HINIC_FA5_PF_ACTION_SHIFT                               0
  83 #define HINIC_FA5_PF_ACTION_MASK                                0xFFFF
  84
  85 #define HINIC_FA5_SET(val, member)                              \
  86         (((u32)(val) & HINIC_FA5_##member##_MASK) << HINIC_FA5_##member##_SHIFT)
  87
  88 #define HINIC_FA5_CLEAR(val, member)                            \
  89         ((val) & (~(HINIC_FA5_##member##_MASK << HINIC_FA5_##member##_SHIFT)))
  90
  91 #define HINIC_PPF_ELECTION_IDX_SHIFT                            0
  92 #define HINIC_PPF_ELECTION_IDX_MASK                             0x1F
  93
  94 #define HINIC_PPF_ELECTION_SET(val, member)                     \
  95         (((u32)(val) & HINIC_PPF_ELECTION_##member##_MASK) <<   \
  96          HINIC_PPF_ELECTION_##member##_SHIFT)
  97
  98 #define HINIC_PPF_ELECTION_GET(val, member)                     \
  99         (((val) >> HINIC_PPF_ELECTION_##member##_SHIFT) &       \
 100          HINIC_PPF_ELECTION_##member##_MASK)
 101
 102 #define HINIC_PPF_ELECTION_CLEAR(val, member)                   \
 103         ((val) & (~(HINIC_PPF_ELECTION_##member##_MASK          \
 104          << HINIC_PPF_ELECTION_##member##_SHIFT)))
 105
 106 #define HINIC_MSIX_PENDING_LIMIT_SHIFT                          0
 107 #define HINIC_MSIX_COALESC_TIMER_SHIFT                          8
 108 #define HINIC_MSIX_LLI_TIMER_SHIFT                              16
 109 #define HINIC_MSIX_LLI_CREDIT_SHIFT                             24
 110 #define HINIC_MSIX_RESEND_TIMER_SHIFT                           29
 111
 112 #define HINIC_MSIX_PENDING_LIMIT_MASK                           0xFF
 113 #define HINIC_MSIX_COALESC_TIMER_MASK                           0xFF
 114 #define HINIC_MSIX_LLI_TIMER_MASK                               0xFF
 115 #define HINIC_MSIX_LLI_CREDIT_MASK                              0x1F
 116 #define HINIC_MSIX_RESEND_TIMER_MASK                            0x7
 117
 118 #define HINIC_MSIX_ATTR_SET(val, member)                        \
 119         (((u32)(val) & HINIC_MSIX_##member##_MASK) <<           \
 120          HINIC_MSIX_##member##_SHIFT)
 121
 122 #define HINIC_MSIX_ATTR_GET(val, member)                        \
 123         (((val) >> HINIC_MSIX_##member##_SHIFT) &               \
 124          HINIC_MSIX_##member##_MASK)
 125
 126 #define HINIC_MSIX_CNT_RESEND_TIMER_SHIFT                       29
 127
 128 #define HINIC_MSIX_CNT_RESEND_TIMER_MASK                        0x1
 129
 130 #define HINIC_MSIX_CNT_SET(val, member)                         \
 131         (((u32)(val) & HINIC_MSIX_CNT_##member##_MASK) <<       \
 132          HINIC_MSIX_CNT_##member##_SHIFT)
 133
 134 #define HINIC_HWIF_NUM_AEQS(hwif)       ((hwif)->attr.num_aeqs)
 135 #define HINIC_HWIF_NUM_CEQS(hwif)       ((hwif)->attr.num_ceqs)
 136 #define HINIC_HWIF_NUM_IRQS(hwif)       ((hwif)->attr.num_irqs)
 137 #define HINIC_HWIF_FUNC_IDX(hwif)       ((hwif)->attr.func_idx)
 138 #define HINIC_HWIF_PCI_INTF(hwif)       ((hwif)->attr.pci_intf_idx)
 139 #define HINIC_HWIF_PF_IDX(hwif)         ((hwif)->attr.pf_idx)
 140 #define HINIC_HWIF_PPF_IDX(hwif)        ((hwif)->attr.ppf_idx)
 141
 142 #define HINIC_FUNC_TYPE(hwif)           ((hwif)->attr.func_type)
 143 #define HINIC_IS_PF(hwif)               (HINIC_FUNC_TYPE(hwif) == HINIC_PF)
 144 #define HINIC_IS_PPF(hwif)              (HINIC_FUNC_TYPE(hwif) == HINIC_PPF)
 145
 146 #define HINIC_PCI_CFG_REGS_BAR          0
 147 #define HINIC_PCI_INTR_REGS_BAR         2
 148 #define HINIC_PCI_DB_BAR                4
 149
 150 #define HINIC_PCIE_ST_DISABLE           0
 151 #define HINIC_PCIE_AT_DISABLE           0
 152 #define HINIC_PCIE_PH_DISABLE           0
 153
 154 #define HINIC_EQ_MSIX_PENDING_LIMIT_DEFAULT     0       /* Disabled */
 155 #define HINIC_EQ_MSIX_COALESC_TIMER_DEFAULT     0xFF    /* max */
 156 #define HINIC_EQ_MSIX_LLI_TIMER_DEFAULT         0       /* Disabled */
 157 #define HINIC_EQ_MSIX_LLI_CREDIT_LIMIT_DEFAULT  0       /* Disabled */
 158 #define HINIC_EQ_MSIX_RESEND_TIMER_DEFAULT      7       /* max */
 159
 160 #define HINIC_PCI_MSIX_ENTRY_SIZE               16
 161 #define HINIC_PCI_MSIX_ENTRY_VECTOR_CTRL        12
 162 #define HINIC_PCI_MSIX_ENTRY_CTRL_MASKBIT       1
 163
 164 enum hinic_pcie_nosnoop {
 165         HINIC_PCIE_SNOOP        = 0,
 166         HINIC_PCIE_NO_SNOOP     = 1,
 167 };
 168
 169 enum hinic_pcie_tph {
 170         HINIC_PCIE_TPH_DISABLE  = 0,
 171         HINIC_PCIE_TPH_ENABLE   = 1,
 172 };
 173
 174 enum hinic_func_type {
 175         HINIC_PF        = 0,
 176         HINIC_PPF       = 2,
 177 };
 178
 179 enum hinic_mod_type {
 180         HINIC_MOD_COMM  = 0,    /* HW communication module */
 181         HINIC_MOD_L2NIC = 1,    /* L2NIC module */
 182         HINIC_MOD_CFGM  = 7,    /* Configuration module */
 183
 184         HINIC_MOD_MAX   = 15
 185 };
 186
 187 enum hinic_node_id {
 188         HINIC_NODE_ID_MGMT = 21,
 189 };
 190
 191 enum hinic_pf_action {
 192         HINIC_PF_MGMT_INIT = 0x0,
 193
 194         HINIC_PF_MGMT_ACTIVE = 0x11,
 195 };
 196
 197 enum hinic_outbound_state {
 198         HINIC_OUTBOUND_ENABLE  = 0,
 199         HINIC_OUTBOUND_DISABLE = 1,
 200 };
 201
 202 enum hinic_db_state {
 203         HINIC_DB_ENABLE  = 0,
 204         HINIC_DB_DISABLE = 1,
 205 };
 206
 207 enum hinic_msix_state {
 208         HINIC_MSIX_ENABLE,
 209         HINIC_MSIX_DISABLE,
 210 };
 211
 212 struct hinic_func_attr {
 213         u16                     func_idx;
 214         u8                      pf_idx;
 215         u8                      pci_intf_idx;
 216
 217         enum hinic_func_type    func_type;
 218
 219         u8                      ppf_idx;
 220
 221         u16                     num_irqs;
 222         u8                      num_aeqs;
 223         u8                      num_ceqs;
 224
 225         u8                      num_dma_attr;
 226 };
 227
 228 struct hinic_hwif {
 229         struct pci_dev          *pdev;
 230         void __iomem            *cfg_regs_bar;
 231         void __iomem            *intr_regs_base;
 232
 233         struct hinic_func_attr  attr;
 234 };
 235
 236 static inline u32 hinic_hwif_read_reg(struct hinic_hwif *hwif, u32 reg)
 237 {
 238         return be32_to_cpu(readl(hwif->cfg_regs_bar + reg));
 239 }
 240
 241 static inline void hinic_hwif_write_reg(struct hinic_hwif *hwif, u32 reg,
 242                                         u32 val)
 243 {
 244         writel(cpu_to_be32(val), hwif->cfg_regs_bar + reg);
 245 }
 246
 247 int hinic_msix_attr_set(struct hinic_hwif *hwif, u16 msix_index,
 248                         u8 pending_limit, u8 coalesc_timer,
 249                         u8 lli_timer_cfg, u8 lli_credit_limit,
 250                         u8 resend_timer);
 251
 252 int hinic_msix_attr_get(struct hinic_hwif *hwif, u16 msix_index,
 253                         u8 *pending_limit, u8 *coalesc_timer_cfg,
 254                         u8 *lli_timer, u8 *lli_credit_limit,
 255                         u8 *resend_timer);
 256
 257 void hinic_set_msix_state(struct hinic_hwif *hwif, u16 msix_idx,
 258                           enum hinic_msix_state flag);
 259
 260 int hinic_msix_attr_cnt_clear(struct hinic_hwif *hwif, u16 msix_index);
 261
 262 void hinic_set_pf_action(struct hinic_hwif *hwif, enum hinic_pf_action action);
 263
 264 enum hinic_outbound_state hinic_outbound_state_get(struct hinic_hwif *hwif);
 265
 266 void hinic_outbound_state_set(struct hinic_hwif *hwif,
 267                               enum hinic_outbound_state outbound_state);
 268
 269 enum hinic_db_state hinic_db_state_get(struct hinic_hwif *hwif);
 270
 271 void hinic_db_state_set(struct hinic_hwif *hwif,
 272                         enum hinic_db_state db_state);
 273
 274 int hinic_init_hwif(struct hinic_hwif *hwif, struct pci_dev *pdev);
 275
 276 void hinic_free_hwif(struct hinic_hwif *hwif);
 277
 278 #endif