drivers/scsi/hisi_sas/hisi_sas_v1_hw.c

   1 /*
   2  * Copyright (c) 2015 Linaro Ltd.
   3  * Copyright (c) 2015 Hisilicon Limited.
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  */
  11
  12 #include "hisi_sas.h"
  13 #define DRV_NAME "hisi_sas_v1_hw"
  14
  15 /* global registers need init*/
  16 #define DLVRY_QUEUE_ENABLE              0x0
  17 #define IOST_BASE_ADDR_LO               0x8
  18 #define IOST_BASE_ADDR_HI               0xc
  19 #define ITCT_BASE_ADDR_LO               0x10
  20 #define ITCT_BASE_ADDR_HI               0x14
  21 #define BROKEN_MSG_ADDR_LO              0x18
  22 #define BROKEN_MSG_ADDR_HI              0x1c
  23 #define PHY_CONTEXT                     0x20
  24 #define PHY_STATE                       0x24
  25 #define PHY_PORT_NUM_MA                 0x28
  26 #define PORT_STATE                      0x2c
  27 #define PHY_CONN_RATE                   0x30
  28 #define HGC_TRANS_TASK_CNT_LIMIT        0x38
  29 #define AXI_AHB_CLK_CFG                 0x3c
  30 #define HGC_SAS_TXFAIL_RETRY_CTRL       0x84
  31 #define HGC_GET_ITV_TIME                0x90
  32 #define DEVICE_MSG_WORK_MODE            0x94
  33 #define I_T_NEXUS_LOSS_TIME             0xa0
  34 #define BUS_INACTIVE_LIMIT_TIME         0xa8
  35 #define REJECT_TO_OPEN_LIMIT_TIME       0xac
  36 #define CFG_AGING_TIME                  0xbc
  37 #define CFG_AGING_TIME_ITCT_REL_OFF     0
  38 #define CFG_AGING_TIME_ITCT_REL_MSK     (0x1 << CFG_AGING_TIME_ITCT_REL_OFF)
  39 #define HGC_DFX_CFG2                    0xc0
  40 #define FIS_LIST_BADDR_L                0xc4
  41 #define CFG_1US_TIMER_TRSH              0xcc
  42 #define CFG_SAS_CONFIG                  0xd4
  43 #define HGC_IOST_ECC_ADDR               0x140
  44 #define HGC_IOST_ECC_ADDR_BAD_OFF       16
  45 #define HGC_IOST_ECC_ADDR_BAD_MSK       (0x3ff << HGC_IOST_ECC_ADDR_BAD_OFF)
  46 #define HGC_DQ_ECC_ADDR                 0x144
  47 #define HGC_DQ_ECC_ADDR_BAD_OFF         16
  48 #define HGC_DQ_ECC_ADDR_BAD_MSK         (0xfff << HGC_DQ_ECC_ADDR_BAD_OFF)
  49 #define HGC_INVLD_DQE_INFO              0x148
  50 #define HGC_INVLD_DQE_INFO_DQ_OFF       0
  51 #define HGC_INVLD_DQE_INFO_DQ_MSK       (0xffff << HGC_INVLD_DQE_INFO_DQ_OFF)
  52 #define HGC_INVLD_DQE_INFO_TYPE_OFF     16
  53 #define HGC_INVLD_DQE_INFO_TYPE_MSK     (0x1 << HGC_INVLD_DQE_INFO_TYPE_OFF)
  54 #define HGC_INVLD_DQE_INFO_FORCE_OFF    17
  55 #define HGC_INVLD_DQE_INFO_FORCE_MSK    (0x1 << HGC_INVLD_DQE_INFO_FORCE_OFF)
  56 #define HGC_INVLD_DQE_INFO_PHY_OFF      18
  57 #define HGC_INVLD_DQE_INFO_PHY_MSK      (0x1 << HGC_INVLD_DQE_INFO_PHY_OFF)
  58 #define HGC_INVLD_DQE_INFO_ABORT_OFF    19
  59 #define HGC_INVLD_DQE_INFO_ABORT_MSK    (0x1 << HGC_INVLD_DQE_INFO_ABORT_OFF)
  60 #define HGC_INVLD_DQE_INFO_IPTT_OF_OFF  20
  61 #define HGC_INVLD_DQE_INFO_IPTT_OF_MSK  (0x1 << HGC_INVLD_DQE_INFO_IPTT_OF_OFF)
  62 #define HGC_INVLD_DQE_INFO_SSP_ERR_OFF  21
  63 #define HGC_INVLD_DQE_INFO_SSP_ERR_MSK  (0x1 << HGC_INVLD_DQE_INFO_SSP_ERR_OFF)
  64 #define HGC_INVLD_DQE_INFO_OFL_OFF      22
  65 #define HGC_INVLD_DQE_INFO_OFL_MSK      (0x1 << HGC_INVLD_DQE_INFO_OFL_OFF)
  66 #define HGC_ITCT_ECC_ADDR               0x150
  67 #define HGC_ITCT_ECC_ADDR_BAD_OFF       16
  68 #define HGC_ITCT_ECC_ADDR_BAD_MSK       (0x3ff << HGC_ITCT_ECC_ADDR_BAD_OFF)
  69 #define HGC_AXI_FIFO_ERR_INFO           0x154
  70 #define INT_COAL_EN                     0x1bc
  71 #define OQ_INT_COAL_TIME                0x1c0
  72 #define OQ_INT_COAL_CNT                 0x1c4
  73 #define ENT_INT_COAL_TIME               0x1c8
  74 #define ENT_INT_COAL_CNT                0x1cc
  75 #define OQ_INT_SRC                      0x1d0
  76 #define OQ_INT_SRC_MSK                  0x1d4
  77 #define ENT_INT_SRC1                    0x1d8
  78 #define ENT_INT_SRC2                    0x1dc
  79 #define ENT_INT_SRC2_DQ_CFG_ERR_OFF     25
  80 #define ENT_INT_SRC2_DQ_CFG_ERR_MSK     (0x1 << ENT_INT_SRC2_DQ_CFG_ERR_OFF)
  81 #define ENT_INT_SRC2_CQ_CFG_ERR_OFF     27
  82 #define ENT_INT_SRC2_CQ_CFG_ERR_MSK     (0x1 << ENT_INT_SRC2_CQ_CFG_ERR_OFF)
  83 #define ENT_INT_SRC2_AXI_WRONG_INT_OFF  28
  84 #define ENT_INT_SRC2_AXI_WRONG_INT_MSK  (0x1 << ENT_INT_SRC2_AXI_WRONG_INT_OFF)
  85 #define ENT_INT_SRC2_AXI_OVERLF_INT_OFF 29
  86 #define ENT_INT_SRC2_AXI_OVERLF_INT_MSK (0x1 << ENT_INT_SRC2_AXI_OVERLF_INT_OFF)
  87 #define ENT_INT_SRC_MSK1                0x1e0
  88 #define ENT_INT_SRC_MSK2                0x1e4
  89 #define SAS_ECC_INTR                    0x1e8
  90 #define SAS_ECC_INTR_DQ_ECC1B_OFF       0
  91 #define SAS_ECC_INTR_DQ_ECC1B_MSK       (0x1 << SAS_ECC_INTR_DQ_ECC1B_OFF)
  92 #define SAS_ECC_INTR_DQ_ECCBAD_OFF      1
  93 #define SAS_ECC_INTR_DQ_ECCBAD_MSK      (0x1 << SAS_ECC_INTR_DQ_ECCBAD_OFF)
  94 #define SAS_ECC_INTR_IOST_ECC1B_OFF     2
  95 #define SAS_ECC_INTR_IOST_ECC1B_MSK     (0x1 << SAS_ECC_INTR_IOST_ECC1B_OFF)
  96 #define SAS_ECC_INTR_IOST_ECCBAD_OFF    3
  97 #define SAS_ECC_INTR_IOST_ECCBAD_MSK    (0x1 << SAS_ECC_INTR_IOST_ECCBAD_OFF)
  98 #define SAS_ECC_INTR_ITCT_ECC1B_OFF     4
  99 #define SAS_ECC_INTR_ITCT_ECC1B_MSK     (0x1 << SAS_ECC_INTR_ITCT_ECC1B_OFF)
 100 #define SAS_ECC_INTR_ITCT_ECCBAD_OFF    5
 101 #define SAS_ECC_INTR_ITCT_ECCBAD_MSK    (0x1 << SAS_ECC_INTR_ITCT_ECCBAD_OFF)
 102 #define SAS_ECC_INTR_MSK                0x1ec
 103 #define HGC_ERR_STAT_EN                 0x238
 104 #define DLVRY_Q_0_BASE_ADDR_LO          0x260
 105 #define DLVRY_Q_0_BASE_ADDR_HI          0x264
 106 #define DLVRY_Q_0_DEPTH                 0x268
 107 #define DLVRY_Q_0_WR_PTR                0x26c
 108 #define DLVRY_Q_0_RD_PTR                0x270
 109 #define COMPL_Q_0_BASE_ADDR_LO          0x4e0
 110 #define COMPL_Q_0_BASE_ADDR_HI          0x4e4
 111 #define COMPL_Q_0_DEPTH                 0x4e8
 112 #define COMPL_Q_0_WR_PTR                0x4ec
 113 #define COMPL_Q_0_RD_PTR                0x4f0
 114 #define HGC_ECC_ERR                     0x7d0
 115
 116 /* phy registers need init */
 117 #define PORT_BASE                       (0x800)
 118
 119 #define PHY_CFG                         (PORT_BASE + 0x0)
 120 #define PHY_CFG_ENA_OFF                 0
 121 #define PHY_CFG_ENA_MSK                 (0x1 << PHY_CFG_ENA_OFF)
 122 #define PHY_CFG_DC_OPT_OFF              2
 123 #define PHY_CFG_DC_OPT_MSK              (0x1 << PHY_CFG_DC_OPT_OFF)
 124 #define PROG_PHY_LINK_RATE              (PORT_BASE + 0xc)
 125 #define PROG_PHY_LINK_RATE_MAX_OFF      0
 126 #define PROG_PHY_LINK_RATE_MAX_MSK      (0xf << PROG_PHY_LINK_RATE_MAX_OFF)
 127 #define PROG_PHY_LINK_RATE_MIN_OFF      4
 128 #define PROG_PHY_LINK_RATE_MIN_MSK      (0xf << PROG_PHY_LINK_RATE_MIN_OFF)
 129 #define PROG_PHY_LINK_RATE_OOB_OFF      8
 130 #define PROG_PHY_LINK_RATE_OOB_MSK      (0xf << PROG_PHY_LINK_RATE_OOB_OFF)
 131 #define PHY_CTRL                        (PORT_BASE + 0x14)
 132 #define PHY_CTRL_RESET_OFF              0
 133 #define PHY_CTRL_RESET_MSK              (0x1 << PHY_CTRL_RESET_OFF)
 134 #define PHY_RATE_NEGO                   (PORT_BASE + 0x30)
 135 #define PHY_PCN                         (PORT_BASE + 0x44)
 136 #define SL_TOUT_CFG                     (PORT_BASE + 0x8c)
 137 #define SL_CONTROL                      (PORT_BASE + 0x94)
 138 #define SL_CONTROL_NOTIFY_EN_OFF        0
 139 #define SL_CONTROL_NOTIFY_EN_MSK        (0x1 << SL_CONTROL_NOTIFY_EN_OFF)
 140 #define TX_ID_DWORD0                    (PORT_BASE + 0x9c)
 141 #define TX_ID_DWORD1                    (PORT_BASE + 0xa0)
 142 #define TX_ID_DWORD2                    (PORT_BASE + 0xa4)
 143 #define TX_ID_DWORD3                    (PORT_BASE + 0xa8)
 144 #define TX_ID_DWORD4                    (PORT_BASE + 0xaC)
 145 #define TX_ID_DWORD5                    (PORT_BASE + 0xb0)
 146 #define TX_ID_DWORD6                    (PORT_BASE + 0xb4)
 147 #define RX_IDAF_DWORD0                  (PORT_BASE + 0xc4)
 148 #define RX_IDAF_DWORD1                  (PORT_BASE + 0xc8)
 149 #define RX_IDAF_DWORD2                  (PORT_BASE + 0xcc)
 150 #define RX_IDAF_DWORD3                  (PORT_BASE + 0xd0)
 151 #define RX_IDAF_DWORD4                  (PORT_BASE + 0xd4)
 152 #define RX_IDAF_DWORD5                  (PORT_BASE + 0xd8)
 153 #define RX_IDAF_DWORD6                  (PORT_BASE + 0xdc)
 154 #define RXOP_CHECK_CFG_H                (PORT_BASE + 0xfc)
 155 #define DONE_RECEIVED_TIME              (PORT_BASE + 0x12c)
 156 #define CON_CFG_DRIVER                  (PORT_BASE + 0x130)
 157 #define PHY_CONFIG2                     (PORT_BASE + 0x1a8)
 158 #define PHY_CONFIG2_FORCE_TXDEEMPH_OFF  3
 159 #define PHY_CONFIG2_FORCE_TXDEEMPH_MSK  (0x1 << PHY_CONFIG2_FORCE_TXDEEMPH_OFF)
 160 #define PHY_CONFIG2_TX_TRAIN_COMP_OFF   24
 161 #define PHY_CONFIG2_TX_TRAIN_COMP_MSK   (0x1 << PHY_CONFIG2_TX_TRAIN_COMP_OFF)
 162 #define CHL_INT0                        (PORT_BASE + 0x1b0)
 163 #define CHL_INT0_PHYCTRL_NOTRDY_OFF     0
 164 #define CHL_INT0_PHYCTRL_NOTRDY_MSK     (0x1 << CHL_INT0_PHYCTRL_NOTRDY_OFF)
 165 #define CHL_INT0_SN_FAIL_NGR_OFF        2
 166 #define CHL_INT0_SN_FAIL_NGR_MSK        (0x1 << CHL_INT0_SN_FAIL_NGR_OFF)
 167 #define CHL_INT0_DWS_LOST_OFF           4
 168 #define CHL_INT0_DWS_LOST_MSK           (0x1 << CHL_INT0_DWS_LOST_OFF)
 169 #define CHL_INT0_SL_IDAF_FAIL_OFF       10
 170 #define CHL_INT0_SL_IDAF_FAIL_MSK       (0x1 << CHL_INT0_SL_IDAF_FAIL_OFF)
 171 #define CHL_INT0_ID_TIMEOUT_OFF         11
 172 #define CHL_INT0_ID_TIMEOUT_MSK         (0x1 << CHL_INT0_ID_TIMEOUT_OFF)
 173 #define CHL_INT0_SL_OPAF_FAIL_OFF       12
 174 #define CHL_INT0_SL_OPAF_FAIL_MSK       (0x1 << CHL_INT0_SL_OPAF_FAIL_OFF)
 175 #define CHL_INT0_SL_PS_FAIL_OFF         21
 176 #define CHL_INT0_SL_PS_FAIL_MSK         (0x1 << CHL_INT0_SL_PS_FAIL_OFF)
 177 #define CHL_INT1                        (PORT_BASE + 0x1b4)
 178 #define CHL_INT2                        (PORT_BASE + 0x1b8)
 179 #define CHL_INT2_SL_RX_BC_ACK_OFF       2
 180 #define CHL_INT2_SL_RX_BC_ACK_MSK       (0x1 << CHL_INT2_SL_RX_BC_ACK_OFF)
 181 #define CHL_INT2_SL_PHY_ENA_OFF         6
 182 #define CHL_INT2_SL_PHY_ENA_MSK         (0x1 << CHL_INT2_SL_PHY_ENA_OFF)
 183 #define CHL_INT0_MSK                    (PORT_BASE + 0x1bc)
 184 #define CHL_INT0_MSK_PHYCTRL_NOTRDY_OFF 0
 185 #define CHL_INT0_MSK_PHYCTRL_NOTRDY_MSK (0x1 << CHL_INT0_MSK_PHYCTRL_NOTRDY_OFF)
 186 #define CHL_INT1_MSK                    (PORT_BASE + 0x1c0)
 187 #define CHL_INT2_MSK                    (PORT_BASE + 0x1c4)
 188 #define CHL_INT_COAL_EN                 (PORT_BASE + 0x1d0)
 189 #define DMA_TX_STATUS                   (PORT_BASE + 0x2d0)
 190 #define DMA_TX_STATUS_BUSY_OFF          0
 191 #define DMA_TX_STATUS_BUSY_MSK          (0x1 << DMA_TX_STATUS_BUSY_OFF)
 192 #define DMA_RX_STATUS                   (PORT_BASE + 0x2e8)
 193 #define DMA_RX_STATUS_BUSY_OFF          0
 194 #define DMA_RX_STATUS_BUSY_MSK          (0x1 << DMA_RX_STATUS_BUSY_OFF)
 195
 196 #define AXI_CFG                         0x5100
 197 #define RESET_VALUE                     0x7ffff
 198
 199 /* HW dma structures */
 200 /* Delivery queue header */
 201 /* dw0 */
 202 #define CMD_HDR_RESP_REPORT_OFF         5
 203 #define CMD_HDR_RESP_REPORT_MSK         0x20
 204 #define CMD_HDR_TLR_CTRL_OFF            6
 205 #define CMD_HDR_TLR_CTRL_MSK            0xc0
 206 #define CMD_HDR_PORT_OFF                17
 207 #define CMD_HDR_PORT_MSK                0xe0000
 208 #define CMD_HDR_PRIORITY_OFF            27
 209 #define CMD_HDR_PRIORITY_MSK            0x8000000
 210 #define CMD_HDR_MODE_OFF                28
 211 #define CMD_HDR_MODE_MSK                0x10000000
 212 #define CMD_HDR_CMD_OFF                 29
 213 #define CMD_HDR_CMD_MSK                 0xe0000000
 214 /* dw1 */
 215 #define CMD_HDR_VERIFY_DTL_OFF          10
 216 #define CMD_HDR_VERIFY_DTL_MSK          0x400
 217 #define CMD_HDR_SSP_FRAME_TYPE_OFF      13
 218 #define CMD_HDR_SSP_FRAME_TYPE_MSK      0xe000
 219 #define CMD_HDR_DEVICE_ID_OFF           16
 220 #define CMD_HDR_DEVICE_ID_MSK           0xffff0000
 221 /* dw2 */
 222 #define CMD_HDR_CFL_OFF                 0
 223 #define CMD_HDR_CFL_MSK                 0x1ff
 224 #define CMD_HDR_MRFL_OFF                15
 225 #define CMD_HDR_MRFL_MSK                0xff8000
 226 #define CMD_HDR_FIRST_BURST_OFF         25
 227 #define CMD_HDR_FIRST_BURST_MSK         0x2000000
 228 /* dw3 */
 229 #define CMD_HDR_IPTT_OFF                0
 230 #define CMD_HDR_IPTT_MSK                0xffff
 231 /* dw6 */
 232 #define CMD_HDR_DATA_SGL_LEN_OFF        16
 233 #define CMD_HDR_DATA_SGL_LEN_MSK        0xffff0000
 234
 235 /* Completion header */
 236 #define CMPLT_HDR_IPTT_OFF              0
 237 #define CMPLT_HDR_IPTT_MSK              (0xffff << CMPLT_HDR_IPTT_OFF)
 238 #define CMPLT_HDR_CMD_CMPLT_OFF         17
 239 #define CMPLT_HDR_CMD_CMPLT_MSK         (0x1 << CMPLT_HDR_CMD_CMPLT_OFF)
 240 #define CMPLT_HDR_ERR_RCRD_XFRD_OFF     18
 241 #define CMPLT_HDR_ERR_RCRD_XFRD_MSK     (0x1 << CMPLT_HDR_ERR_RCRD_XFRD_OFF)
 242 #define CMPLT_HDR_RSPNS_XFRD_OFF        19
 243 #define CMPLT_HDR_RSPNS_XFRD_MSK        (0x1 << CMPLT_HDR_RSPNS_XFRD_OFF)
 244 #define CMPLT_HDR_IO_CFG_ERR_OFF        27
 245 #define CMPLT_HDR_IO_CFG_ERR_MSK        (0x1 << CMPLT_HDR_IO_CFG_ERR_OFF)
 246
 247 /* ITCT header */
 248 /* qw0 */
 249 #define ITCT_HDR_DEV_TYPE_OFF           0
 250 #define ITCT_HDR_DEV_TYPE_MSK           (0x3ULL << ITCT_HDR_DEV_TYPE_OFF)
 251 #define ITCT_HDR_VALID_OFF              2
 252 #define ITCT_HDR_VALID_MSK              (0x1ULL << ITCT_HDR_VALID_OFF)
 253 #define ITCT_HDR_AWT_CONTROL_OFF        4
 254 #define ITCT_HDR_AWT_CONTROL_MSK        (0x1ULL << ITCT_HDR_AWT_CONTROL_OFF)
 255 #define ITCT_HDR_MAX_CONN_RATE_OFF      5
 256 #define ITCT_HDR_MAX_CONN_RATE_MSK      (0xfULL << ITCT_HDR_MAX_CONN_RATE_OFF)
 257 #define ITCT_HDR_VALID_LINK_NUM_OFF     9
 258 #define ITCT_HDR_VALID_LINK_NUM_MSK     (0xfULL << ITCT_HDR_VALID_LINK_NUM_OFF)
 259 #define ITCT_HDR_PORT_ID_OFF            13
 260 #define ITCT_HDR_PORT_ID_MSK            (0x7ULL << ITCT_HDR_PORT_ID_OFF)
 261 #define ITCT_HDR_SMP_TIMEOUT_OFF        16
 262 #define ITCT_HDR_SMP_TIMEOUT_MSK        (0xffffULL << ITCT_HDR_SMP_TIMEOUT_OFF)
 263 /* qw1 */
 264 #define ITCT_HDR_MAX_SAS_ADDR_OFF       0
 265 #define ITCT_HDR_MAX_SAS_ADDR_MSK       (0xffffffffffffffff << \
 266                                         ITCT_HDR_MAX_SAS_ADDR_OFF)
 267 /* qw2 */
 268 #define ITCT_HDR_IT_NEXUS_LOSS_TL_OFF   0
 269 #define ITCT_HDR_IT_NEXUS_LOSS_TL_MSK   (0xffffULL << \
 270                                         ITCT_HDR_IT_NEXUS_LOSS_TL_OFF)
 271 #define ITCT_HDR_BUS_INACTIVE_TL_OFF    16
 272 #define ITCT_HDR_BUS_INACTIVE_TL_MSK    (0xffffULL << \
 273                                         ITCT_HDR_BUS_INACTIVE_TL_OFF)
 274 #define ITCT_HDR_MAX_CONN_TL_OFF        32
 275 #define ITCT_HDR_MAX_CONN_TL_MSK        (0xffffULL << \
 276                                         ITCT_HDR_MAX_CONN_TL_OFF)
 277 #define ITCT_HDR_REJ_OPEN_TL_OFF        48
 278 #define ITCT_HDR_REJ_OPEN_TL_MSK        (0xffffULL << \
 279                                         ITCT_HDR_REJ_OPEN_TL_OFF)
 280
 281 /* Err record header */
 282 #define ERR_HDR_DMA_TX_ERR_TYPE_OFF     0
 283 #define ERR_HDR_DMA_TX_ERR_TYPE_MSK     (0xffff << ERR_HDR_DMA_TX_ERR_TYPE_OFF)
 284 #define ERR_HDR_DMA_RX_ERR_TYPE_OFF     16
 285 #define ERR_HDR_DMA_RX_ERR_TYPE_MSK     (0xffff << ERR_HDR_DMA_RX_ERR_TYPE_OFF)
 286
 287 struct hisi_sas_complete_v1_hdr {
 288         __le32 data;
 289 };
 290
 291 struct hisi_sas_err_record_v1 {
 292         /* dw0 */
 293         __le32 dma_err_type;
 294
 295         /* dw1 */
 296         __le32 trans_tx_fail_type;
 297
 298         /* dw2 */
 299         __le32 trans_rx_fail_type;
 300
 301         /* dw3 */
 302         u32 rsvd;
 303 };
 304
 305 enum {
 306         HISI_SAS_PHY_BCAST_ACK = 0,
 307         HISI_SAS_PHY_SL_PHY_ENABLED,
 308         HISI_SAS_PHY_INT_ABNORMAL,
 309         HISI_SAS_PHY_INT_NR
 310 };
 311
 312 enum {
 313         DMA_TX_ERR_BASE = 0x0,
 314         DMA_RX_ERR_BASE = 0x100,
 315         TRANS_TX_FAIL_BASE = 0x200,
 316         TRANS_RX_FAIL_BASE = 0x300,
 317
 318         /* dma tx */
 319         DMA_TX_DIF_CRC_ERR = DMA_TX_ERR_BASE, /* 0x0 */
 320         DMA_TX_DIF_APP_ERR, /* 0x1 */
 321         DMA_TX_DIF_RPP_ERR, /* 0x2 */
 322         DMA_TX_AXI_BUS_ERR, /* 0x3 */
 323         DMA_TX_DATA_SGL_OVERFLOW_ERR, /* 0x4 */
 324         DMA_TX_DIF_SGL_OVERFLOW_ERR, /* 0x5 */
 325         DMA_TX_UNEXP_XFER_RDY_ERR, /* 0x6 */
 326         DMA_TX_XFER_RDY_OFFSET_ERR, /* 0x7 */
 327         DMA_TX_DATA_UNDERFLOW_ERR, /* 0x8 */
 328         DMA_TX_XFER_RDY_LENGTH_OVERFLOW_ERR, /* 0x9 */
 329
 330         /* dma rx */
 331         DMA_RX_BUFFER_ECC_ERR = DMA_RX_ERR_BASE, /* 0x100 */
 332         DMA_RX_DIF_CRC_ERR, /* 0x101 */
 333         DMA_RX_DIF_APP_ERR, /* 0x102 */
 334         DMA_RX_DIF_RPP_ERR, /* 0x103 */
 335         DMA_RX_RESP_BUFFER_OVERFLOW_ERR, /* 0x104 */
 336         DMA_RX_AXI_BUS_ERR, /* 0x105 */
 337         DMA_RX_DATA_SGL_OVERFLOW_ERR, /* 0x106 */
 338         DMA_RX_DIF_SGL_OVERFLOW_ERR, /* 0x107 */
 339         DMA_RX_DATA_OFFSET_ERR, /* 0x108 */
 340         DMA_RX_UNEXP_RX_DATA_ERR, /* 0x109 */
 341         DMA_RX_DATA_OVERFLOW_ERR, /* 0x10a */
 342         DMA_RX_DATA_UNDERFLOW_ERR, /* 0x10b */
 343         DMA_RX_UNEXP_RETRANS_RESP_ERR, /* 0x10c */
 344
 345         /* trans tx */
 346         TRANS_TX_RSVD0_ERR = TRANS_TX_FAIL_BASE, /* 0x200 */
 347         TRANS_TX_PHY_NOT_ENABLE_ERR, /* 0x201 */
 348         TRANS_TX_OPEN_REJCT_WRONG_DEST_ERR, /* 0x202 */
 349         TRANS_TX_OPEN_REJCT_ZONE_VIOLATION_ERR, /* 0x203 */
 350         TRANS_TX_OPEN_REJCT_BY_OTHER_ERR, /* 0x204 */
 351         TRANS_TX_RSVD1_ERR, /* 0x205 */
 352         TRANS_TX_OPEN_REJCT_AIP_TIMEOUT_ERR, /* 0x206 */
 353         TRANS_TX_OPEN_REJCT_STP_BUSY_ERR, /* 0x207 */
 354         TRANS_TX_OPEN_REJCT_PROTOCOL_NOT_SUPPORT_ERR, /* 0x208 */
 355         TRANS_TX_OPEN_REJCT_RATE_NOT_SUPPORT_ERR, /* 0x209 */
 356         TRANS_TX_OPEN_REJCT_BAD_DEST_ERR, /* 0x20a */
 357         TRANS_TX_OPEN_BREAK_RECEIVE_ERR, /* 0x20b */
 358         TRANS_TX_LOW_PHY_POWER_ERR, /* 0x20c */
 359         TRANS_TX_OPEN_REJCT_PATHWAY_BLOCKED_ERR, /* 0x20d */
 360         TRANS_TX_OPEN_TIMEOUT_ERR, /* 0x20e */
 361         TRANS_TX_OPEN_REJCT_NO_DEST_ERR, /* 0x20f */
 362         TRANS_TX_OPEN_RETRY_ERR, /* 0x210 */
 363         TRANS_TX_RSVD2_ERR, /* 0x211 */
 364         TRANS_TX_BREAK_TIMEOUT_ERR, /* 0x212 */
 365         TRANS_TX_BREAK_REQUEST_ERR, /* 0x213 */
 366         TRANS_TX_BREAK_RECEIVE_ERR, /* 0x214 */
 367         TRANS_TX_CLOSE_TIMEOUT_ERR, /* 0x215 */
 368         TRANS_TX_CLOSE_NORMAL_ERR, /* 0x216 */
 369         TRANS_TX_CLOSE_PHYRESET_ERR, /* 0x217 */
 370         TRANS_TX_WITH_CLOSE_DWS_TIMEOUT_ERR, /* 0x218 */
 371         TRANS_TX_WITH_CLOSE_COMINIT_ERR, /* 0x219 */
 372         TRANS_TX_NAK_RECEIVE_ERR, /* 0x21a */
 373         TRANS_TX_ACK_NAK_TIMEOUT_ERR, /* 0x21b */
 374         TRANS_TX_CREDIT_TIMEOUT_ERR, /* 0x21c */
 375         TRANS_TX_IPTT_CONFLICT_ERR, /* 0x21d */
 376         TRANS_TX_TXFRM_TYPE_ERR, /* 0x21e */
 377         TRANS_TX_TXSMP_LENGTH_ERR, /* 0x21f */
 378
 379         /* trans rx */
 380         TRANS_RX_FRAME_CRC_ERR = TRANS_RX_FAIL_BASE, /* 0x300 */
 381         TRANS_RX_FRAME_DONE_ERR, /* 0x301 */
 382         TRANS_RX_FRAME_ERRPRM_ERR, /* 0x302 */
 383         TRANS_RX_FRAME_NO_CREDIT_ERR, /* 0x303 */
 384         TRANS_RX_RSVD0_ERR, /* 0x304 */
 385         TRANS_RX_FRAME_OVERRUN_ERR, /* 0x305 */
 386         TRANS_RX_FRAME_NO_EOF_ERR, /* 0x306 */
 387         TRANS_RX_LINK_BUF_OVERRUN_ERR, /* 0x307 */
 388         TRANS_RX_BREAK_TIMEOUT_ERR, /* 0x308 */
 389         TRANS_RX_BREAK_REQUEST_ERR, /* 0x309 */
 390         TRANS_RX_BREAK_RECEIVE_ERR, /* 0x30a */
 391         TRANS_RX_CLOSE_TIMEOUT_ERR, /* 0x30b */
 392         TRANS_RX_CLOSE_NORMAL_ERR, /* 0x30c */
 393         TRANS_RX_CLOSE_PHYRESET_ERR, /* 0x30d */
 394         TRANS_RX_WITH_CLOSE_DWS_TIMEOUT_ERR, /* 0x30e */
 395         TRANS_RX_WITH_CLOSE_COMINIT_ERR, /* 0x30f */
 396         TRANS_RX_DATA_LENGTH0_ERR, /* 0x310 */
 397         TRANS_RX_BAD_HASH_ERR, /* 0x311 */
 398         TRANS_RX_XRDY_ZERO_ERR, /* 0x312 */
 399         TRANS_RX_SSP_FRAME_LEN_ERR, /* 0x313 */
 400         TRANS_RX_TRANS_RX_RSVD1_ERR, /* 0x314 */
 401         TRANS_RX_NO_BALANCE_ERR, /* 0x315 */
 402         TRANS_RX_TRANS_RX_RSVD2_ERR, /* 0x316 */
 403         TRANS_RX_TRANS_RX_RSVD3_ERR, /* 0x317 */
 404         TRANS_RX_BAD_FRAME_TYPE_ERR, /* 0x318 */
 405         TRANS_RX_SMP_FRAME_LEN_ERR, /* 0x319 */
 406         TRANS_RX_SMP_RESP_TIMEOUT_ERR, /* 0x31a */
 407 };
 408
 409 #define HISI_SAS_COMMAND_ENTRIES_V1_HW 8192
 410
 411 #define HISI_SAS_PHY_MAX_INT_NR (HISI_SAS_PHY_INT_NR * HISI_SAS_MAX_PHYS)
 412 #define HISI_SAS_CQ_MAX_INT_NR (HISI_SAS_MAX_QUEUES)
 413 #define HISI_SAS_FATAL_INT_NR (2)
 414
 415 #define HISI_SAS_MAX_INT_NR \
 416         (HISI_SAS_PHY_MAX_INT_NR + HISI_SAS_CQ_MAX_INT_NR +\
 417         HISI_SAS_FATAL_INT_NR)
 418
 419 static u32 hisi_sas_read32(struct hisi_hba *hisi_hba, u32 off)
 420 {
 421         void __iomem *regs = hisi_hba->regs + off;
 422
 423         return readl(regs);
 424 }
 425
 426 static u32 hisi_sas_read32_relaxed(struct hisi_hba *hisi_hba, u32 off)
 427 {
 428         void __iomem *regs = hisi_hba->regs + off;
 429
 430         return readl_relaxed(regs);
 431 }
 432
 433 static void hisi_sas_write32(struct hisi_hba *hisi_hba,
 434                                     u32 off, u32 val)
 435 {
 436         void __iomem *regs = hisi_hba->regs + off;
 437
 438         writel(val, regs);
 439 }
 440
 441 static void hisi_sas_phy_write32(struct hisi_hba *hisi_hba,
 442                                         int phy_no, u32 off, u32 val)
 443 {
 444         void __iomem *regs = hisi_hba->regs + (0x400 * phy_no) + off;
 445
 446         writel(val, regs);
 447 }
 448
 449 static u32 hisi_sas_phy_read32(struct hisi_hba *hisi_hba,
 450                                       int phy_no, u32 off)
 451 {
 452         void __iomem *regs = hisi_hba->regs + (0x400 * phy_no) + off;
 453
 454         return readl(regs);
 455 }
 456
 457 static void config_phy_opt_mode_v1_hw(struct hisi_hba *hisi_hba, int phy_no)
 458 {
 459         u32 cfg = hisi_sas_phy_read32(hisi_hba, phy_no, PHY_CFG);
 460
 461         cfg &= ~PHY_CFG_DC_OPT_MSK;
 462         cfg |= 1 << PHY_CFG_DC_OPT_OFF;
 463         hisi_sas_phy_write32(hisi_hba, phy_no, PHY_CFG, cfg);
 464 }
 465
 466 static void config_tx_tfe_autoneg_v1_hw(struct hisi_hba *hisi_hba, int phy_no)
 467 {
 468         u32 cfg = hisi_sas_phy_read32(hisi_hba, phy_no, PHY_CONFIG2);
 469
 470         cfg &= ~PHY_CONFIG2_FORCE_TXDEEMPH_MSK;
 471         hisi_sas_phy_write32(hisi_hba, phy_no, PHY_CONFIG2, cfg);
 472 }
 473
 474 static void config_id_frame_v1_hw(struct hisi_hba *hisi_hba, int phy_no)
 475 {
 476         struct sas_identify_frame identify_frame;
 477         u32 *identify_buffer;
 478
 479         memset(&identify_frame, 0, sizeof(identify_frame));
 480         identify_frame.dev_type = SAS_END_DEVICE;
 481         identify_frame.frame_type = 0;
 482         identify_frame._un1 = 1;
 483         identify_frame.initiator_bits = SAS_PROTOCOL_ALL;
 484         identify_frame.target_bits = SAS_PROTOCOL_NONE;
 485         memcpy(&identify_frame._un4_11[0], hisi_hba->sas_addr, SAS_ADDR_SIZE);
 486         memcpy(&identify_frame.sas_addr[0], hisi_hba->sas_addr, SAS_ADDR_SIZE);
 487         identify_frame.phy_id = phy_no;
 488         identify_buffer = (u32 *)(&identify_frame);
 489
 490         hisi_sas_phy_write32(hisi_hba, phy_no, TX_ID_DWORD0,
 491                         __swab32(identify_buffer[0]));
 492         hisi_sas_phy_write32(hisi_hba, phy_no, TX_ID_DWORD1,
 493                         __swab32(identify_buffer[1]));
 494         hisi_sas_phy_write32(hisi_hba, phy_no, TX_ID_DWORD2,
 495                         __swab32(identify_buffer[2]));
 496         hisi_sas_phy_write32(hisi_hba, phy_no, TX_ID_DWORD3,
 497                         __swab32(identify_buffer[3]));
 498         hisi_sas_phy_write32(hisi_hba, phy_no, TX_ID_DWORD4,
 499                         __swab32(identify_buffer[4]));
 500         hisi_sas_phy_write32(hisi_hba, phy_no, TX_ID_DWORD5,
 501                         __swab32(identify_buffer[5]));
 502 }
 503
 504 static void setup_itct_v1_hw(struct hisi_hba *hisi_hba,
 505                              struct hisi_sas_device *sas_dev)
 506 {
 507         struct domain_device *device = sas_dev->sas_device;
 508         struct device *dev = hisi_hba->dev;
 509         u64 qw0, device_id = sas_dev->device_id;
 510         struct hisi_sas_itct *itct = &hisi_hba->itct[device_id];
 511         struct asd_sas_port *sas_port = device->port;
 512         struct hisi_sas_port *port = to_hisi_sas_port(sas_port);
 513
 514         memset(itct, 0, sizeof(*itct));
 515
 516         /* qw0 */
 517         qw0 = 0;
 518         switch (sas_dev->dev_type) {
 519         case SAS_END_DEVICE:
 520         case SAS_EDGE_EXPANDER_DEVICE:
 521         case SAS_FANOUT_EXPANDER_DEVICE:
 522                 qw0 = HISI_SAS_DEV_TYPE_SSP << ITCT_HDR_DEV_TYPE_OFF;
 523                 break;
 524         default:
 525                 dev_warn(dev, "setup itct: unsupported dev type (%d)\n",
 526                          sas_dev->dev_type);
 527         }
 528
 529         qw0 |= ((1 << ITCT_HDR_VALID_OFF) |
 530                 (1 << ITCT_HDR_AWT_CONTROL_OFF) |
 531                 (device->max_linkrate << ITCT_HDR_MAX_CONN_RATE_OFF) |
 532                 (1 << ITCT_HDR_VALID_LINK_NUM_OFF) |
 533                 (port->id << ITCT_HDR_PORT_ID_OFF));
 534         itct->qw0 = cpu_to_le64(qw0);
 535
 536         /* qw1 */
 537         memcpy(&itct->sas_addr, device->sas_addr, SAS_ADDR_SIZE);
 538         itct->sas_addr = __swab64(itct->sas_addr);
 539
 540         /* qw2 */
 541         itct->qw2 = cpu_to_le64((500ULL << ITCT_HDR_IT_NEXUS_LOSS_TL_OFF) |
 542                                 (0xff00ULL << ITCT_HDR_BUS_INACTIVE_TL_OFF) |
 543                                 (0xff00ULL << ITCT_HDR_MAX_CONN_TL_OFF) |
 544                                 (0xff00ULL << ITCT_HDR_REJ_OPEN_TL_OFF));
 545 }
 546
 547 static void free_device_v1_hw(struct hisi_hba *hisi_hba,
 548                               struct hisi_sas_device *sas_dev)
 549 {
 550         u64 dev_id = sas_dev->device_id;
 551         struct hisi_sas_itct *itct = &hisi_hba->itct[dev_id];
 552         u64 qw0;
 553         u32 reg_val = hisi_sas_read32(hisi_hba, CFG_AGING_TIME);
 554
 555         reg_val |= CFG_AGING_TIME_ITCT_REL_MSK;
 556         hisi_sas_write32(hisi_hba, CFG_AGING_TIME, reg_val);
 557
 558         /* free itct */
 559         udelay(1);
 560         reg_val = hisi_sas_read32(hisi_hba, CFG_AGING_TIME);
 561         reg_val &= ~CFG_AGING_TIME_ITCT_REL_MSK;
 562         hisi_sas_write32(hisi_hba, CFG_AGING_TIME, reg_val);
 563
 564         qw0 = cpu_to_le64(itct->qw0);
 565         qw0 &= ~ITCT_HDR_VALID_MSK;
 566         itct->qw0 = cpu_to_le64(qw0);
 567 }
 568
 569 static int reset_hw_v1_hw(struct hisi_hba *hisi_hba)
 570 {
 571         int i;
 572         unsigned long end_time;
 573         u32 val;
 574         struct device *dev = hisi_hba->dev;
 575
 576         for (i = 0; i < hisi_hba->n_phy; i++) {
 577                 u32 phy_ctrl = hisi_sas_phy_read32(hisi_hba, i, PHY_CTRL);
 578
 579                 phy_ctrl |= PHY_CTRL_RESET_MSK;
 580                 hisi_sas_phy_write32(hisi_hba, i, PHY_CTRL, phy_ctrl);
 581         }
 582         msleep(1); /* It is safe to wait for 50us */
 583
 584         /* Ensure DMA tx & rx idle */
 585         for (i = 0; i < hisi_hba->n_phy; i++) {
 586                 u32 dma_tx_status, dma_rx_status;
 587
 588                 end_time = jiffies + msecs_to_jiffies(1000);
 589
 590                 while (1) {
 591                         dma_tx_status = hisi_sas_phy_read32(hisi_hba, i,
 592                                                             DMA_TX_STATUS);
 593                         dma_rx_status = hisi_sas_phy_read32(hisi_hba, i,
 594                                                             DMA_RX_STATUS);
 595
 596                         if (!(dma_tx_status & DMA_TX_STATUS_BUSY_MSK) &&
 597                                 !(dma_rx_status & DMA_RX_STATUS_BUSY_MSK))
 598                                 break;
 599
 600                         msleep(20);
 601                         if (time_after(jiffies, end_time))
 602                                 return -EIO;
 603                 }
 604         }
 605
 606         /* Ensure axi bus idle */
 607         end_time = jiffies + msecs_to_jiffies(1000);
 608         while (1) {
 609                 u32 axi_status =
 610                         hisi_sas_read32(hisi_hba, AXI_CFG);
 611
 612                 if (axi_status == 0)
 613                         break;
 614
 615                 msleep(20);
 616                 if (time_after(jiffies, end_time))
 617                         return -EIO;
 618         }
 619
 620         if (ACPI_HANDLE(dev)) {
 621                 acpi_status s;
 622
 623                 s = acpi_evaluate_object(ACPI_HANDLE(dev), "_RST", NULL, NULL);
 624                 if (ACPI_FAILURE(s)) {
 625                         dev_err(dev, "Reset failed\n");
 626                         return -EIO;
 627                 }
 628         } else if (hisi_hba->ctrl) {
 629                 /* Apply reset and disable clock */
 630                 /* clk disable reg is offset by +4 bytes from clk enable reg */
 631                 regmap_write(hisi_hba->ctrl, hisi_hba->ctrl_reset_reg,
 632                              RESET_VALUE);
 633                 regmap_write(hisi_hba->ctrl, hisi_hba->ctrl_clock_ena_reg + 4,
 634                              RESET_VALUE);
 635                 msleep(1);
 636                 regmap_read(hisi_hba->ctrl, hisi_hba->ctrl_reset_sts_reg, &val);
 637                 if (RESET_VALUE != (val & RESET_VALUE)) {
 638                         dev_err(dev, "Reset failed\n");
 639                         return -EIO;
 640                 }
 641
 642                 /* De-reset and enable clock */
 643                 /* deassert rst reg is offset by +4 bytes from assert reg */
 644                 regmap_write(hisi_hba->ctrl, hisi_hba->ctrl_reset_reg + 4,
 645                              RESET_VALUE);
 646                 regmap_write(hisi_hba->ctrl, hisi_hba->ctrl_clock_ena_reg,
 647                              RESET_VALUE);
 648                 msleep(1);
 649                 regmap_read(hisi_hba->ctrl, hisi_hba->ctrl_reset_sts_reg, &val);
 650                 if (val & RESET_VALUE) {
 651                         dev_err(dev, "De-reset failed\n");
 652                         return -EIO;
 653                 }
 654         } else
 655                 dev_warn(dev, "no reset method\n");
 656
 657         return 0;
 658 }
 659
 660 static void init_reg_v1_hw(struct hisi_hba *hisi_hba)
 661 {
 662         int i;
 663
 664         /* Global registers init*/
 665         hisi_sas_write32(hisi_hba, DLVRY_QUEUE_ENABLE,
 666                          (u32)((1ULL << hisi_hba->queue_count) - 1));
 667         hisi_sas_write32(hisi_hba, HGC_TRANS_TASK_CNT_LIMIT, 0x11);
 668         hisi_sas_write32(hisi_hba, DEVICE_MSG_WORK_MODE, 0x1);
 669         hisi_sas_write32(hisi_hba, HGC_SAS_TXFAIL_RETRY_CTRL, 0x1ff);
 670         hisi_sas_write32(hisi_hba, HGC_ERR_STAT_EN, 0x401);
 671         hisi_sas_write32(hisi_hba, CFG_1US_TIMER_TRSH, 0x64);
 672         hisi_sas_write32(hisi_hba, HGC_GET_ITV_TIME, 0x1);
 673         hisi_sas_write32(hisi_hba, I_T_NEXUS_LOSS_TIME, 0x64);
 674         hisi_sas_write32(hisi_hba, BUS_INACTIVE_LIMIT_TIME, 0x2710);
 675         hisi_sas_write32(hisi_hba, REJECT_TO_OPEN_LIMIT_TIME, 0x1);
 676         hisi_sas_write32(hisi_hba, CFG_AGING_TIME, 0x7a12);
 677         hisi_sas_write32(hisi_hba, HGC_DFX_CFG2, 0x9c40);
 678         hisi_sas_write32(hisi_hba, FIS_LIST_BADDR_L, 0x2);
 679         hisi_sas_write32(hisi_hba, INT_COAL_EN, 0xc);
 680         hisi_sas_write32(hisi_hba, OQ_INT_COAL_TIME, 0x186a0);
 681         hisi_sas_write32(hisi_hba, OQ_INT_COAL_CNT, 1);
 682         hisi_sas_write32(hisi_hba, ENT_INT_COAL_TIME, 0x1);
 683         hisi_sas_write32(hisi_hba, ENT_INT_COAL_CNT, 0x1);
 684         hisi_sas_write32(hisi_hba, OQ_INT_SRC, 0xffffffff);
 685         hisi_sas_write32(hisi_hba, OQ_INT_SRC_MSK, 0);
 686         hisi_sas_write32(hisi_hba, ENT_INT_SRC1, 0xffffffff);
 687         hisi_sas_write32(hisi_hba, ENT_INT_SRC_MSK1, 0);
 688         hisi_sas_write32(hisi_hba, ENT_INT_SRC2, 0xffffffff);
 689         hisi_sas_write32(hisi_hba, ENT_INT_SRC_MSK2, 0);
 690         hisi_sas_write32(hisi_hba, SAS_ECC_INTR_MSK, 0);
 691         hisi_sas_write32(hisi_hba, AXI_AHB_CLK_CFG, 0x2);
 692         hisi_sas_write32(hisi_hba, CFG_SAS_CONFIG, 0x22000000);
 693
 694         for (i = 0; i < hisi_hba->n_phy; i++) {
 695                 hisi_sas_phy_write32(hisi_hba, i, PROG_PHY_LINK_RATE, 0x88a);
 696                 hisi_sas_phy_write32(hisi_hba, i, PHY_CONFIG2, 0x7c080);
 697                 hisi_sas_phy_write32(hisi_hba, i, PHY_RATE_NEGO, 0x415ee00);
 698                 hisi_sas_phy_write32(hisi_hba, i, PHY_PCN, 0x80a80000);
 699                 hisi_sas_phy_write32(hisi_hba, i, SL_TOUT_CFG, 0x7d7d7d7d);
 700                 hisi_sas_phy_write32(hisi_hba, i, DONE_RECEIVED_TIME, 0x0);
 701                 hisi_sas_phy_write32(hisi_hba, i, RXOP_CHECK_CFG_H, 0x1000);
 702                 hisi_sas_phy_write32(hisi_hba, i, DONE_RECEIVED_TIME, 0);
 703                 hisi_sas_phy_write32(hisi_hba, i, CON_CFG_DRIVER, 0x13f0a);
 704                 hisi_sas_phy_write32(hisi_hba, i, CHL_INT_COAL_EN, 3);
 705                 hisi_sas_phy_write32(hisi_hba, i, DONE_RECEIVED_TIME, 8);
 706         }
 707
 708         for (i = 0; i < hisi_hba->queue_count; i++) {
 709                 /* Delivery queue */
 710                 hisi_sas_write32(hisi_hba,
 711                                  DLVRY_Q_0_BASE_ADDR_HI + (i * 0x14),
 712                                  upper_32_bits(hisi_hba->cmd_hdr_dma[i]));
 713
 714                 hisi_sas_write32(hisi_hba,
 715                                  DLVRY_Q_0_BASE_ADDR_LO + (i * 0x14),
 716                                  lower_32_bits(hisi_hba->cmd_hdr_dma[i]));
 717
 718                 hisi_sas_write32(hisi_hba,
 719                                  DLVRY_Q_0_DEPTH + (i * 0x14),
 720                                  HISI_SAS_QUEUE_SLOTS);
 721
 722                 /* Completion queue */
 723                 hisi_sas_write32(hisi_hba,
 724                                  COMPL_Q_0_BASE_ADDR_HI + (i * 0x14),
 725                                  upper_32_bits(hisi_hba->complete_hdr_dma[i]));
 726
 727                 hisi_sas_write32(hisi_hba,
 728                                  COMPL_Q_0_BASE_ADDR_LO + (i * 0x14),
 729                                  lower_32_bits(hisi_hba->complete_hdr_dma[i]));
 730
 731                 hisi_sas_write32(hisi_hba, COMPL_Q_0_DEPTH + (i * 0x14),
 732                                  HISI_SAS_QUEUE_SLOTS);
 733         }
 734
 735         /* itct */
 736         hisi_sas_write32(hisi_hba, ITCT_BASE_ADDR_LO,
 737                          lower_32_bits(hisi_hba->itct_dma));
 738
 739         hisi_sas_write32(hisi_hba, ITCT_BASE_ADDR_HI,
 740                          upper_32_bits(hisi_hba->itct_dma));
 741
 742         /* iost */
 743         hisi_sas_write32(hisi_hba, IOST_BASE_ADDR_LO,
 744                          lower_32_bits(hisi_hba->iost_dma));
 745
 746         hisi_sas_write32(hisi_hba, IOST_BASE_ADDR_HI,
 747                          upper_32_bits(hisi_hba->iost_dma));
 748
 749         /* breakpoint */
 750         hisi_sas_write32(hisi_hba, BROKEN_MSG_ADDR_LO,
 751                          lower_32_bits(hisi_hba->breakpoint_dma));
 752
 753         hisi_sas_write32(hisi_hba, BROKEN_MSG_ADDR_HI,
 754                          upper_32_bits(hisi_hba->breakpoint_dma));
 755 }
 756
 757 static int hw_init_v1_hw(struct hisi_hba *hisi_hba)
 758 {
 759         struct device *dev = hisi_hba->dev;
 760         int rc;
 761
 762         rc = reset_hw_v1_hw(hisi_hba);
 763         if (rc) {
 764                 dev_err(dev, "hisi_sas_reset_hw failed, rc=%d", rc);
 765                 return rc;
 766         }
 767
 768         msleep(100);
 769         init_reg_v1_hw(hisi_hba);
 770
 771         return 0;
 772 }
 773
 774 static void enable_phy_v1_hw(struct hisi_hba *hisi_hba, int phy_no)
 775 {
 776         u32 cfg = hisi_sas_phy_read32(hisi_hba, phy_no, PHY_CFG);
 777
 778         cfg |= PHY_CFG_ENA_MSK;
 779         hisi_sas_phy_write32(hisi_hba, phy_no, PHY_CFG, cfg);
 780 }
 781
 782 static void disable_phy_v1_hw(struct hisi_hba *hisi_hba, int phy_no)
 783 {
 784         u32 cfg = hisi_sas_phy_read32(hisi_hba, phy_no, PHY_CFG);
 785
 786         cfg &= ~PHY_CFG_ENA_MSK;
 787         hisi_sas_phy_write32(hisi_hba, phy_no, PHY_CFG, cfg);
 788 }
 789
 790 static void start_phy_v1_hw(struct hisi_hba *hisi_hba, int phy_no)
 791 {
 792         config_id_frame_v1_hw(hisi_hba, phy_no);
 793         config_phy_opt_mode_v1_hw(hisi_hba, phy_no);
 794         config_tx_tfe_autoneg_v1_hw(hisi_hba, phy_no);
 795         enable_phy_v1_hw(hisi_hba, phy_no);
 796 }
 797
 798 static void stop_phy_v1_hw(struct hisi_hba *hisi_hba, int phy_no)
 799 {
 800         disable_phy_v1_hw(hisi_hba, phy_no);
 801 }
 802
 803 static void phy_hard_reset_v1_hw(struct hisi_hba *hisi_hba, int phy_no)
 804 {
 805         stop_phy_v1_hw(hisi_hba, phy_no);
 806         msleep(100);
 807         start_phy_v1_hw(hisi_hba, phy_no);
 808 }
 809
 810 static void start_phys_v1_hw(unsigned long data)
 811 {
 812         struct hisi_hba *hisi_hba = (struct hisi_hba *)data;
 813         int i;
 814
 815         for (i = 0; i < hisi_hba->n_phy; i++) {
 816                 hisi_sas_phy_write32(hisi_hba, i, CHL_INT2_MSK, 0x12a);
 817                 start_phy_v1_hw(hisi_hba, i);
 818         }
 819 }
 820
 821 static void phys_init_v1_hw(struct hisi_hba *hisi_hba)
 822 {
 823         int i;
 824         struct timer_list *timer = &hisi_hba->timer;
 825
 826         for (i = 0; i < hisi_hba->n_phy; i++) {
 827                 hisi_sas_phy_write32(hisi_hba, i, CHL_INT2_MSK, 0x6a);
 828                 hisi_sas_phy_read32(hisi_hba, i, CHL_INT2_MSK);
 829         }
 830
 831         setup_timer(timer, start_phys_v1_hw, (unsigned long)hisi_hba);
 832         mod_timer(timer, jiffies + HZ);
 833 }
 834
 835 static void sl_notify_v1_hw(struct hisi_hba *hisi_hba, int phy_no)
 836 {
 837         u32 sl_control;
 838
 839         sl_control = hisi_sas_phy_read32(hisi_hba, phy_no, SL_CONTROL);
 840         sl_control |= SL_CONTROL_NOTIFY_EN_MSK;
 841         hisi_sas_phy_write32(hisi_hba, phy_no, SL_CONTROL, sl_control);
 842         msleep(1);
 843         sl_control = hisi_sas_phy_read32(hisi_hba, phy_no, SL_CONTROL);
 844         sl_control &= ~SL_CONTROL_NOTIFY_EN_MSK;
 845         hisi_sas_phy_write32(hisi_hba, phy_no, SL_CONTROL, sl_control);
 846 }
 847
 848 static enum sas_linkrate phy_get_max_linkrate_v1_hw(void)
 849 {
 850         return SAS_LINK_RATE_6_0_GBPS;
 851 }
 852
 853 static void phy_set_linkrate_v1_hw(struct hisi_hba *hisi_hba, int phy_no,
 854                 struct sas_phy_linkrates *r)
 855 {
 856         u32 prog_phy_link_rate =
 857                 hisi_sas_phy_read32(hisi_hba, phy_no, PROG_PHY_LINK_RATE);
 858         struct hisi_sas_phy *phy = &hisi_hba->phy[phy_no];
 859         struct asd_sas_phy *sas_phy = &phy->sas_phy;
 860         int i;
 861         enum sas_linkrate min, max;
 862         u32 rate_mask = 0;
 863
 864         if (r->maximum_linkrate == SAS_LINK_RATE_UNKNOWN) {
 865                 max = sas_phy->phy->maximum_linkrate;
 866                 min = r->minimum_linkrate;
 867         } else if (r->minimum_linkrate == SAS_LINK_RATE_UNKNOWN) {
 868                 max = r->maximum_linkrate;
 869                 min = sas_phy->phy->minimum_linkrate;
 870         } else
 871                 return;
 872
 873         sas_phy->phy->maximum_linkrate = max;
 874         sas_phy->phy->minimum_linkrate = min;
 875
 876         min -= SAS_LINK_RATE_1_5_GBPS;
 877         max -= SAS_LINK_RATE_1_5_GBPS;
 878
 879         for (i = 0; i <= max; i++)
 880                 rate_mask |= 1 << (i * 2);
 881
 882         prog_phy_link_rate &= ~0xff;
 883         prog_phy_link_rate |= rate_mask;
 884
 885         hisi_sas_phy_write32(hisi_hba, phy_no, PROG_PHY_LINK_RATE,
 886                         prog_phy_link_rate);
 887
 888         phy_hard_reset_v1_hw(hisi_hba, phy_no);
 889 }
 890
 891 static int get_wideport_bitmap_v1_hw(struct hisi_hba *hisi_hba, int port_id)
 892 {
 893         int i, bitmap = 0;
 894         u32 phy_port_num_ma = hisi_sas_read32(hisi_hba, PHY_PORT_NUM_MA);
 895
 896         for (i = 0; i < hisi_hba->n_phy; i++)
 897                 if (((phy_port_num_ma >> (i * 4)) & 0xf) == port_id)
 898                         bitmap |= 1 << i;
 899
 900         return bitmap;
 901 }
 902
 903 /*
 904  * The callpath to this function and upto writing the write
 905  * queue pointer should be safe from interruption.
 906  */
 907 static int
 908 get_free_slot_v1_hw(struct hisi_hba *hisi_hba, struct hisi_sas_dq *dq)
 909 {
 910         struct device *dev = hisi_hba->dev;
 911         int queue = dq->id;
 912         u32 r, w;
 913
 914         w = dq->wr_point;
 915         r = hisi_sas_read32_relaxed(hisi_hba,
 916                                 DLVRY_Q_0_RD_PTR + (queue * 0x14));
 917         if (r == (w+1) % HISI_SAS_QUEUE_SLOTS) {
 918                 dev_warn(dev, "could not find free slot\n");
 919                 return -EAGAIN;
 920         }
 921
 922         return 0;
 923 }
 924
 925 static void start_delivery_v1_hw(struct hisi_sas_dq *dq)
 926 {
 927         struct hisi_hba *hisi_hba = dq->hisi_hba;
 928         int dlvry_queue = dq->slot_prep->dlvry_queue;
 929         int dlvry_queue_slot = dq->slot_prep->dlvry_queue_slot;
 930
 931         dq->wr_point = ++dlvry_queue_slot % HISI_SAS_QUEUE_SLOTS;
 932         hisi_sas_write32(hisi_hba, DLVRY_Q_0_WR_PTR + (dlvry_queue * 0x14),
 933                          dq->wr_point);
 934 }
 935
 936 static int prep_prd_sge_v1_hw(struct hisi_hba *hisi_hba,
 937                               struct hisi_sas_slot *slot,
 938                               struct hisi_sas_cmd_hdr *hdr,
 939                               struct scatterlist *scatter,
 940                               int n_elem)
 941 {
 942         struct hisi_sas_sge_page *sge_page = hisi_sas_sge_addr_mem(slot);
 943         struct device *dev = hisi_hba->dev;
 944         struct scatterlist *sg;
 945         int i;
 946
 947         if (n_elem > HISI_SAS_SGE_PAGE_CNT) {
 948                 dev_err(dev, "prd err: n_elem(%d) > HISI_SAS_SGE_PAGE_CNT",
 949                         n_elem);
 950                 return -EINVAL;
 951         }
 952
 953         for_each_sg(scatter, sg, n_elem, i) {
 954                 struct hisi_sas_sge *entry = &sge_page->sge[i];
 955
 956                 entry->addr = cpu_to_le64(sg_dma_address(sg));
 957                 entry->page_ctrl_0 = entry->page_ctrl_1 = 0;
 958                 entry->data_len = cpu_to_le32(sg_dma_len(sg));
 959                 entry->data_off = 0;
 960         }
 961
 962         hdr->prd_table_addr = cpu_to_le64(hisi_sas_sge_addr_dma(slot));
 963
 964         hdr->sg_len = cpu_to_le32(n_elem << CMD_HDR_DATA_SGL_LEN_OFF);
 965
 966         return 0;
 967 }
 968
 969 static int prep_smp_v1_hw(struct hisi_hba *hisi_hba,
 970                           struct hisi_sas_slot *slot)
 971 {
 972         struct sas_task *task = slot->task;
 973         struct hisi_sas_cmd_hdr *hdr = slot->cmd_hdr;
 974         struct domain_device *device = task->dev;
 975         struct device *dev = hisi_hba->dev;
 976         struct hisi_sas_port *port = slot->port;
 977         struct scatterlist *sg_req, *sg_resp;
 978         struct hisi_sas_device *sas_dev = device->lldd_dev;
 979         dma_addr_t req_dma_addr;
 980         unsigned int req_len, resp_len;
 981         int elem, rc;
 982
 983         /*
 984         * DMA-map SMP request, response buffers
 985         */
 986         /* req */
 987         sg_req = &task->smp_task.smp_req;
 988         elem = dma_map_sg(dev, sg_req, 1, DMA_TO_DEVICE);
 989         if (!elem)
 990                 return -ENOMEM;
 991         req_len = sg_dma_len(sg_req);
 992         req_dma_addr = sg_dma_address(sg_req);
 993
 994         /* resp */
 995         sg_resp = &task->smp_task.smp_resp;
 996         elem = dma_map_sg(dev, sg_resp, 1, DMA_FROM_DEVICE);
 997         if (!elem) {
 998                 rc = -ENOMEM;
 999                 goto err_out_req;
1000         }
1001         resp_len = sg_dma_len(sg_resp);
1002         if ((req_len & 0x3) || (resp_len & 0x3)) {
1003                 rc = -EINVAL;
1004                 goto err_out_resp;
1005         }
1006
1007         /* create header */
1008         /* dw0 */
1009         hdr->dw0 = cpu_to_le32((port->id << CMD_HDR_PORT_OFF) |
1010                                (1 << CMD_HDR_PRIORITY_OFF) | /* high pri */
1011                                (1 << CMD_HDR_MODE_OFF) | /* ini mode */
1012                                (2 << CMD_HDR_CMD_OFF)); /* smp */
1013
1014         /* map itct entry */
1015         hdr->dw1 = cpu_to_le32(sas_dev->device_id << CMD_HDR_DEVICE_ID_OFF);
1016
1017         /* dw2 */
1018         hdr->dw2 = cpu_to_le32((((req_len-4)/4) << CMD_HDR_CFL_OFF) |
1019                                (HISI_SAS_MAX_SMP_RESP_SZ/4 <<
1020                                CMD_HDR_MRFL_OFF));
1021
1022         hdr->transfer_tags = cpu_to_le32(slot->idx << CMD_HDR_IPTT_OFF);
1023
1024         hdr->cmd_table_addr = cpu_to_le64(req_dma_addr);
1025         hdr->sts_buffer_addr = cpu_to_le64(hisi_sas_status_buf_addr_dma(slot));
1026
1027         return 0;
1028
1029 err_out_resp:
1030         dma_unmap_sg(dev, &slot->task->smp_task.smp_resp, 1,
1031                      DMA_FROM_DEVICE);
1032 err_out_req:
1033         dma_unmap_sg(dev, &slot->task->smp_task.smp_req, 1,
1034                      DMA_TO_DEVICE);
1035         return rc;
1036 }
1037
1038 static int prep_ssp_v1_hw(struct hisi_hba *hisi_hba,
1039                           struct hisi_sas_slot *slot, int is_tmf,
1040                           struct hisi_sas_tmf_task *tmf)
1041 {
1042         struct sas_task *task = slot->task;
1043         struct hisi_sas_cmd_hdr *hdr = slot->cmd_hdr;
1044         struct domain_device *device = task->dev;
1045         struct hisi_sas_device *sas_dev = device->lldd_dev;
1046         struct hisi_sas_port *port = slot->port;
1047         struct sas_ssp_task *ssp_task = &task->ssp_task;
1048         struct scsi_cmnd *scsi_cmnd = ssp_task->cmd;
1049         int has_data = 0, rc, priority = is_tmf;
1050         u8 *buf_cmd, fburst = 0;
1051         u32 dw1, dw2;
1052
1053         /* create header */
1054         hdr->dw0 = cpu_to_le32((1 << CMD_HDR_RESP_REPORT_OFF) |
1055                                (0x2 << CMD_HDR_TLR_CTRL_OFF) |
1056                                (port->id << CMD_HDR_PORT_OFF) |
1057                                (priority << CMD_HDR_PRIORITY_OFF) |
1058                                (1 << CMD_HDR_MODE_OFF) | /* ini mode */
1059                                (1 << CMD_HDR_CMD_OFF)); /* ssp */
1060
1061         dw1 = 1 << CMD_HDR_VERIFY_DTL_OFF;
1062
1063         if (is_tmf) {
1064                 dw1 |= 3 << CMD_HDR_SSP_FRAME_TYPE_OFF;
1065         } else {
1066                 switch (scsi_cmnd->sc_data_direction) {
1067                 case DMA_TO_DEVICE:
1068                         dw1 |= 2 << CMD_HDR_SSP_FRAME_TYPE_OFF;
1069                         has_data = 1;
1070                         break;
1071                 case DMA_FROM_DEVICE:
1072                         dw1 |= 1 << CMD_HDR_SSP_FRAME_TYPE_OFF;
1073                         has_data = 1;
1074                         break;
1075                 default:
1076                         dw1 |= 0 << CMD_HDR_SSP_FRAME_TYPE_OFF;
1077                 }
1078         }
1079
1080         /* map itct entry */
1081         dw1 |= sas_dev->device_id << CMD_HDR_DEVICE_ID_OFF;
1082         hdr->dw1 = cpu_to_le32(dw1);
1083
1084         if (is_tmf) {
1085                 dw2 = ((sizeof(struct ssp_tmf_iu) +
1086                         sizeof(struct ssp_frame_hdr)+3)/4) <<
1087                         CMD_HDR_CFL_OFF;
1088         } else {
1089                 dw2 = ((sizeof(struct ssp_command_iu) +
1090                         sizeof(struct ssp_frame_hdr)+3)/4) <<
1091                         CMD_HDR_CFL_OFF;
1092         }
1093
1094         dw2 |= (HISI_SAS_MAX_SSP_RESP_SZ/4) << CMD_HDR_MRFL_OFF;
1095
1096         hdr->transfer_tags = cpu_to_le32(slot->idx << CMD_HDR_IPTT_OFF);
1097
1098         if (has_data) {
1099                 rc = prep_prd_sge_v1_hw(hisi_hba, slot, hdr, task->scatter,
1100                                         slot->n_elem);
1101                 if (rc)
1102                         return rc;
1103         }
1104
1105         hdr->data_transfer_len = cpu_to_le32(task->total_xfer_len);
1106         hdr->cmd_table_addr = cpu_to_le64(hisi_sas_cmd_hdr_addr_dma(slot));
1107         hdr->sts_buffer_addr = cpu_to_le64(hisi_sas_status_buf_addr_dma(slot));
1108
1109         buf_cmd = hisi_sas_cmd_hdr_addr_mem(slot) +
1110                 sizeof(struct ssp_frame_hdr);
1111         if (task->ssp_task.enable_first_burst) {
1112                 fburst = (1 << 7);
1113                 dw2 |= 1 << CMD_HDR_FIRST_BURST_OFF;
1114         }
1115         hdr->dw2 = cpu_to_le32(dw2);
1116
1117         memcpy(buf_cmd, &task->ssp_task.LUN, 8);
1118         if (!is_tmf) {
1119                 buf_cmd[9] = fburst | task->ssp_task.task_attr |
1120                                 (task->ssp_task.task_prio << 3);
1121                 memcpy(buf_cmd + 12, task->ssp_task.cmd->cmnd,
1122                                 task->ssp_task.cmd->cmd_len);
1123         } else {
1124                 buf_cmd[10] = tmf->tmf;
1125                 switch (tmf->tmf) {
1126                 case TMF_ABORT_TASK:
1127                 case TMF_QUERY_TASK:
1128                         buf_cmd[12] =
1129                                 (tmf->tag_of_task_to_be_managed >> 8) & 0xff;
1130                         buf_cmd[13] =
1131                                 tmf->tag_of_task_to_be_managed & 0xff;
1132                         break;
1133                 default:
1134                         break;
1135                 }
1136         }
1137
1138         return 0;
1139 }
1140
1141 /* by default, task resp is complete */
1142 static void slot_err_v1_hw(struct hisi_hba *hisi_hba,
1143                            struct sas_task *task,
1144                            struct hisi_sas_slot *slot)
1145 {
1146         struct task_status_struct *ts = &task->task_status;
1147         struct hisi_sas_err_record_v1 *err_record =
1148                         hisi_sas_status_buf_addr_mem(slot);
1149         struct device *dev = hisi_hba->dev;
1150
1151         switch (task->task_proto) {
1152         case SAS_PROTOCOL_SSP:
1153         {
1154                 int error = -1;
1155                 u32 dma_err_type = cpu_to_le32(err_record->dma_err_type);
1156                 u32 dma_tx_err_type = ((dma_err_type &
1157                                         ERR_HDR_DMA_TX_ERR_TYPE_MSK)) >>
1158                                         ERR_HDR_DMA_TX_ERR_TYPE_OFF;
1159                 u32 dma_rx_err_type = ((dma_err_type &
1160                                         ERR_HDR_DMA_RX_ERR_TYPE_MSK)) >>
1161                                         ERR_HDR_DMA_RX_ERR_TYPE_OFF;
1162                 u32 trans_tx_fail_type =
1163                                 cpu_to_le32(err_record->trans_tx_fail_type);
1164                 u32 trans_rx_fail_type =
1165                                 cpu_to_le32(err_record->trans_rx_fail_type);
1166
1167                 if (dma_tx_err_type) {
1168                         /* dma tx err */
1169                         error = ffs(dma_tx_err_type)
1170                                 - 1 + DMA_TX_ERR_BASE;
1171                 } else if (dma_rx_err_type) {
1172                         /* dma rx err */
1173                         error = ffs(dma_rx_err_type)
1174                                 - 1 + DMA_RX_ERR_BASE;
1175                 } else if (trans_tx_fail_type) {
1176                         /* trans tx err */
1177                         error = ffs(trans_tx_fail_type)
1178                                 - 1 + TRANS_TX_FAIL_BASE;
1179                 } else if (trans_rx_fail_type) {
1180                         /* trans rx err */
1181                         error = ffs(trans_rx_fail_type)
1182                                 - 1 + TRANS_RX_FAIL_BASE;
1183                 }
1184
1185                 switch (error) {
1186                 case DMA_TX_DATA_UNDERFLOW_ERR:
1187                 case DMA_RX_DATA_UNDERFLOW_ERR:
1188                 {
1189                         ts->residual = 0;
1190                         ts->stat = SAS_DATA_UNDERRUN;
1191                         break;
1192                 }
1193                 case DMA_TX_DATA_SGL_OVERFLOW_ERR:
1194                 case DMA_TX_DIF_SGL_OVERFLOW_ERR:
1195                 case DMA_TX_XFER_RDY_LENGTH_OVERFLOW_ERR:
1196                 case DMA_RX_DATA_OVERFLOW_ERR:
1197                 case TRANS_RX_FRAME_OVERRUN_ERR:
1198                 case TRANS_RX_LINK_BUF_OVERRUN_ERR:
1199                 {
1200                         ts->stat = SAS_DATA_OVERRUN;
1201                         ts->residual = 0;
1202                         break;
1203                 }
1204                 case TRANS_TX_PHY_NOT_ENABLE_ERR:
1205                 {
1206                         ts->stat = SAS_PHY_DOWN;
1207                         break;
1208                 }
1209                 case TRANS_TX_OPEN_REJCT_WRONG_DEST_ERR:
1210                 case TRANS_TX_OPEN_REJCT_ZONE_VIOLATION_ERR:
1211                 case TRANS_TX_OPEN_REJCT_BY_OTHER_ERR:
1212                 case TRANS_TX_OPEN_REJCT_AIP_TIMEOUT_ERR:
1213                 case TRANS_TX_OPEN_REJCT_STP_BUSY_ERR:
1214                 case TRANS_TX_OPEN_REJCT_PROTOCOL_NOT_SUPPORT_ERR:
1215                 case TRANS_TX_OPEN_REJCT_RATE_NOT_SUPPORT_ERR:
1216                 case TRANS_TX_OPEN_REJCT_BAD_DEST_ERR:
1217                 case TRANS_TX_OPEN_BREAK_RECEIVE_ERR:
1218                 case TRANS_TX_OPEN_REJCT_PATHWAY_BLOCKED_ERR:
1219                 case TRANS_TX_OPEN_REJCT_NO_DEST_ERR:
1220                 case TRANS_TX_OPEN_RETRY_ERR:
1221                 {
1222                         ts->stat = SAS_OPEN_REJECT;
1223                         ts->open_rej_reason = SAS_OREJ_UNKNOWN;
1224                         break;
1225                 }
1226                 case TRANS_TX_OPEN_TIMEOUT_ERR:
1227                 {
1228                         ts->stat = SAS_OPEN_TO;
1229                         break;
1230                 }
1231                 case TRANS_TX_NAK_RECEIVE_ERR:
1232                 case TRANS_TX_ACK_NAK_TIMEOUT_ERR:
1233                 {
1234                         ts->stat = SAS_NAK_R_ERR;
1235                         break;
1236                 }
1237                 case TRANS_TX_CREDIT_TIMEOUT_ERR:
1238                 case TRANS_TX_CLOSE_NORMAL_ERR:
1239                 {
1240                         /* This will request a retry */
1241                         ts->stat = SAS_QUEUE_FULL;
1242                         slot->abort = 1;
1243                         break;
1244                 }
1245                 default:
1246                 {
1247                         ts->stat = SAM_STAT_CHECK_CONDITION;
1248                         break;
1249                 }
1250                 }
1251         }
1252                 break;
1253         case SAS_PROTOCOL_SMP:
1254                 ts->stat = SAM_STAT_CHECK_CONDITION;
1255                 break;
1256
1257         case SAS_PROTOCOL_SATA:
1258         case SAS_PROTOCOL_STP:
1259         case SAS_PROTOCOL_SATA | SAS_PROTOCOL_STP:
1260         {
1261                 dev_err(dev, "slot err: SATA/STP not supported");
1262         }
1263                 break;
1264         default:
1265                 break;
1266         }
1267
1268 }
1269
1270 static int slot_complete_v1_hw(struct hisi_hba *hisi_hba,
1271                                struct hisi_sas_slot *slot)
1272 {
1273         struct sas_task *task = slot->task;
1274         struct hisi_sas_device *sas_dev;
1275         struct device *dev = hisi_hba->dev;
1276         struct task_status_struct *ts;
1277         struct domain_device *device;
1278         enum exec_status sts;
1279         struct hisi_sas_complete_v1_hdr *complete_queue =
1280                         hisi_hba->complete_hdr[slot->cmplt_queue];
1281         struct hisi_sas_complete_v1_hdr *complete_hdr;
1282         unsigned long flags;
1283         u32 cmplt_hdr_data;
1284
1285         complete_hdr = &complete_queue[slot->cmplt_queue_slot];
1286         cmplt_hdr_data = le32_to_cpu(complete_hdr->data);
1287
1288         if (unlikely(!task || !task->lldd_task || !task->dev))
1289                 return -EINVAL;
1290
1291         ts = &task->task_status;
1292         device = task->dev;
1293         sas_dev = device->lldd_dev;
1294
1295         spin_lock_irqsave(&task->task_state_lock, flags);
1296         task->task_state_flags &=
1297                 ~(SAS_TASK_STATE_PENDING | SAS_TASK_AT_INITIATOR);
1298         task->task_state_flags |= SAS_TASK_STATE_DONE;
1299         spin_unlock_irqrestore(&task->task_state_lock, flags);
1300
1301         memset(ts, 0, sizeof(*ts));
1302         ts->resp = SAS_TASK_COMPLETE;
1303
1304         if (unlikely(!sas_dev)) {
1305                 dev_dbg(dev, "slot complete: port has no device\n");
1306                 ts->stat = SAS_PHY_DOWN;
1307                 goto out;
1308         }
1309
1310         if (cmplt_hdr_data & CMPLT_HDR_IO_CFG_ERR_MSK) {
1311                 u32 info_reg = hisi_sas_read32(hisi_hba, HGC_INVLD_DQE_INFO);
1312
1313                 if (info_reg & HGC_INVLD_DQE_INFO_DQ_MSK)
1314                         dev_err(dev, "slot complete: [%d:%d] has dq IPTT err",
1315                                 slot->cmplt_queue, slot->cmplt_queue_slot);
1316
1317                 if (info_reg & HGC_INVLD_DQE_INFO_TYPE_MSK)
1318                         dev_err(dev, "slot complete: [%d:%d] has dq type err",
1319                                 slot->cmplt_queue, slot->cmplt_queue_slot);
1320
1321                 if (info_reg & HGC_INVLD_DQE_INFO_FORCE_MSK)
1322                         dev_err(dev, "slot complete: [%d:%d] has dq force phy err",
1323                                 slot->cmplt_queue, slot->cmplt_queue_slot);
1324
1325                 if (info_reg & HGC_INVLD_DQE_INFO_PHY_MSK)
1326                         dev_err(dev, "slot complete: [%d:%d] has dq phy id err",
1327                                 slot->cmplt_queue, slot->cmplt_queue_slot);
1328
1329                 if (info_reg & HGC_INVLD_DQE_INFO_ABORT_MSK)
1330                         dev_err(dev, "slot complete: [%d:%d] has dq abort flag err",
1331                                 slot->cmplt_queue, slot->cmplt_queue_slot);
1332
1333                 if (info_reg & HGC_INVLD_DQE_INFO_IPTT_OF_MSK)
1334                         dev_err(dev, "slot complete: [%d:%d] has dq IPTT or ICT err",
1335                                 slot->cmplt_queue, slot->cmplt_queue_slot);
1336
1337                 if (info_reg & HGC_INVLD_DQE_INFO_SSP_ERR_MSK)
1338                         dev_err(dev, "slot complete: [%d:%d] has dq SSP frame type err",
1339                                 slot->cmplt_queue, slot->cmplt_queue_slot);
1340
1341                 if (info_reg & HGC_INVLD_DQE_INFO_OFL_MSK)
1342                         dev_err(dev, "slot complete: [%d:%d] has dq order frame len err",
1343                                 slot->cmplt_queue, slot->cmplt_queue_slot);
1344
1345                 ts->stat = SAS_OPEN_REJECT;
1346                 ts->open_rej_reason = SAS_OREJ_UNKNOWN;
1347                 goto out;
1348         }
1349
1350         if (cmplt_hdr_data & CMPLT_HDR_ERR_RCRD_XFRD_MSK &&
1351                 !(cmplt_hdr_data & CMPLT_HDR_RSPNS_XFRD_MSK)) {
1352
1353                 slot_err_v1_hw(hisi_hba, task, slot);
1354                 if (unlikely(slot->abort)) {
1355                         queue_work(hisi_hba->wq, &slot->abort_slot);
1356                         /* immediately return and do not complete */
1357                         return ts->stat;
1358                 }
1359                 goto out;
1360         }
1361
1362         switch (task->task_proto) {
1363         case SAS_PROTOCOL_SSP:
1364         {
1365                 struct hisi_sas_status_buffer *status_buffer =
1366                                 hisi_sas_status_buf_addr_mem(slot);
1367                 struct ssp_response_iu *iu = (struct ssp_response_iu *)
1368                                 &status_buffer->iu[0];
1369
1370                 sas_ssp_task_response(dev, task, iu);
1371                 break;
1372         }
1373         case SAS_PROTOCOL_SMP:
1374         {
1375                 void *to;
1376                 struct scatterlist *sg_resp = &task->smp_task.smp_resp;
1377
1378                 ts->stat = SAM_STAT_GOOD;
1379                 to = kmap_atomic(sg_page(sg_resp));
1380
1381                 dma_unmap_sg(dev, &task->smp_task.smp_resp, 1,
1382                              DMA_FROM_DEVICE);
1383                 dma_unmap_sg(dev, &task->smp_task.smp_req, 1,
1384                              DMA_TO_DEVICE);
1385                 memcpy(to + sg_resp->offset,
1386                        hisi_sas_status_buf_addr_mem(slot) +
1387                        sizeof(struct hisi_sas_err_record),
1388                        sg_dma_len(sg_resp));
1389                 kunmap_atomic(to);
1390                 break;
1391         }
1392         case SAS_PROTOCOL_SATA:
1393         case SAS_PROTOCOL_STP:
1394         case SAS_PROTOCOL_SATA | SAS_PROTOCOL_STP:
1395                 dev_err(dev, "slot complete: SATA/STP not supported");
1396                 break;
1397
1398         default:
1399                 ts->stat = SAM_STAT_CHECK_CONDITION;
1400                 break;
1401         }
1402
1403         if (!slot->port->port_attached) {
1404                 dev_err(dev, "slot complete: port %d has removed\n",
1405                         slot->port->sas_port.id);
1406                 ts->stat = SAS_PHY_DOWN;
1407         }
1408
1409 out:
1410         if (sas_dev)
1411                 atomic64_dec(&sas_dev->running_req);
1412
1413         hisi_sas_slot_task_free(hisi_hba, task, slot);
1414         sts = ts->stat;
1415
1416         if (task->task_done)
1417                 task->task_done(task);
1418
1419         return sts;
1420 }
1421
1422 /* Interrupts */
1423 static irqreturn_t int_phyup_v1_hw(int irq_no, void *p)
1424 {
1425         struct hisi_sas_phy *phy = p;
1426         struct hisi_hba *hisi_hba = phy->hisi_hba;
1427         struct device *dev = hisi_hba->dev;
1428         struct asd_sas_phy *sas_phy = &phy->sas_phy;
1429         int i, phy_no = sas_phy->id;
1430         u32 irq_value, context, port_id, link_rate;
1431         u32 *frame_rcvd = (u32 *)sas_phy->frame_rcvd;
1432         struct sas_identify_frame *id = (struct sas_identify_frame *)frame_rcvd;
1433         irqreturn_t res = IRQ_HANDLED;
1434
1435         irq_value = hisi_sas_phy_read32(hisi_hba, phy_no, CHL_INT2);
1436         if (!(irq_value & CHL_INT2_SL_PHY_ENA_MSK)) {
1437                 dev_dbg(dev, "phyup: irq_value = %x not set enable bit\n",
1438                         irq_value);
1439                 res = IRQ_NONE;
1440                 goto end;
1441         }
1442
1443         context = hisi_sas_read32(hisi_hba, PHY_CONTEXT);
1444         if (context & 1 << phy_no) {
1445                 dev_err(dev, "phyup: phy%d SATA attached equipment\n",
1446                         phy_no);
1447                 goto end;
1448         }
1449
1450         port_id = (hisi_sas_read32(hisi_hba, PHY_PORT_NUM_MA) >> (4 * phy_no))
1451                   & 0xf;
1452         if (port_id == 0xf) {
1453                 dev_err(dev, "phyup: phy%d invalid portid\n", phy_no);
1454                 res = IRQ_NONE;
1455                 goto end;
1456         }
1457
1458         for (i = 0; i < 6; i++) {
1459                 u32 idaf = hisi_sas_phy_read32(hisi_hba, phy_no,
1460                                         RX_IDAF_DWORD0 + (i * 4));
1461                 frame_rcvd[i] = __swab32(idaf);
1462         }
1463
1464         /* Get the linkrate */
1465         link_rate = hisi_sas_read32(hisi_hba, PHY_CONN_RATE);
1466         link_rate = (link_rate >> (phy_no * 4)) & 0xf;
1467         sas_phy->linkrate = link_rate;
1468         sas_phy->oob_mode = SAS_OOB_MODE;
1469         memcpy(sas_phy->attached_sas_addr,
1470                 &id->sas_addr, SAS_ADDR_SIZE);
1471         dev_info(dev, "phyup: phy%d link_rate=%d\n",
1472                  phy_no, link_rate);
1473         phy->port_id = port_id;
1474         phy->phy_type &= ~(PORT_TYPE_SAS | PORT_TYPE_SATA);
1475         phy->phy_type |= PORT_TYPE_SAS;
1476         phy->phy_attached = 1;
1477         phy->identify.device_type = id->dev_type;
1478         phy->frame_rcvd_size =  sizeof(struct sas_identify_frame);
1479         if (phy->identify.device_type == SAS_END_DEVICE)
1480                 phy->identify.target_port_protocols =
1481                         SAS_PROTOCOL_SSP;
1482         else if (phy->identify.device_type != SAS_PHY_UNUSED)
1483                 phy->identify.target_port_protocols =
1484                         SAS_PROTOCOL_SMP;
1485         queue_work(hisi_hba->wq, &phy->phyup_ws);
1486
1487 end:
1488         hisi_sas_phy_write32(hisi_hba, phy_no, CHL_INT2,
1489                              CHL_INT2_SL_PHY_ENA_MSK);
1490
1491         if (irq_value & CHL_INT2_SL_PHY_ENA_MSK) {
1492                 u32 chl_int0 = hisi_sas_phy_read32(hisi_hba, phy_no, CHL_INT0);
1493
1494                 chl_int0 &= ~CHL_INT0_PHYCTRL_NOTRDY_MSK;
1495                 hisi_sas_phy_write32(hisi_hba, phy_no, CHL_INT0, chl_int0);
1496                 hisi_sas_phy_write32(hisi_hba, phy_no, CHL_INT0_MSK, 0x3ce3ee);
1497         }
1498
1499         return res;
1500 }
1501
1502 static irqreturn_t int_bcast_v1_hw(int irq, void *p)
1503 {
1504         struct hisi_sas_phy *phy = p;
1505         struct hisi_hba *hisi_hba = phy->hisi_hba;
1506         struct asd_sas_phy *sas_phy = &phy->sas_phy;
1507         struct sas_ha_struct *sha = &hisi_hba->sha;
1508         struct device *dev = hisi_hba->dev;
1509         int phy_no = sas_phy->id;
1510         u32 irq_value;
1511         irqreturn_t res = IRQ_HANDLED;
1512
1513         irq_value = hisi_sas_phy_read32(hisi_hba, phy_no, CHL_INT2);
1514
1515         if (!(irq_value & CHL_INT2_SL_RX_BC_ACK_MSK)) {
1516                 dev_err(dev, "bcast: irq_value = %x not set enable bit",
1517                         irq_value);
1518                 res = IRQ_NONE;
1519                 goto end;
1520         }
1521
1522         sha->notify_port_event(sas_phy, PORTE_BROADCAST_RCVD);
1523
1524 end:
1525         hisi_sas_phy_write32(hisi_hba, phy_no, CHL_INT2,
1526                              CHL_INT2_SL_RX_BC_ACK_MSK);
1527
1528         return res;
1529 }
1530
1531 static irqreturn_t int_abnormal_v1_hw(int irq, void *p)
1532 {
1533         struct hisi_sas_phy *phy = p;
1534         struct hisi_hba *hisi_hba = phy->hisi_hba;
1535         struct device *dev = hisi_hba->dev;
1536         struct asd_sas_phy *sas_phy = &phy->sas_phy;
1537         u32 irq_value, irq_mask_old;
1538         int phy_no = sas_phy->id;
1539
1540         /* mask_int0 */
1541         irq_mask_old = hisi_sas_phy_read32(hisi_hba, phy_no, CHL_INT0_MSK);
1542         hisi_sas_phy_write32(hisi_hba, phy_no, CHL_INT0_MSK, 0x3fffff);
1543
1544         /* read int0 */
1545         irq_value = hisi_sas_phy_read32(hisi_hba, phy_no, CHL_INT0);
1546
1547         if (irq_value & CHL_INT0_PHYCTRL_NOTRDY_MSK) {
1548                 u32 phy_state = hisi_sas_read32(hisi_hba, PHY_STATE);
1549
1550                 hisi_sas_phy_down(hisi_hba, phy_no,
1551                                   (phy_state & 1 << phy_no) ? 1 : 0);
1552         }
1553
1554         if (irq_value & CHL_INT0_ID_TIMEOUT_MSK)
1555                 dev_dbg(dev, "abnormal: ID_TIMEOUT phy%d identify timeout\n",
1556                         phy_no);
1557
1558         if (irq_value & CHL_INT0_DWS_LOST_MSK)
1559                 dev_dbg(dev, "abnormal: DWS_LOST phy%d dws lost\n", phy_no);
1560
1561         if (irq_value & CHL_INT0_SN_FAIL_NGR_MSK)
1562                 dev_dbg(dev, "abnormal: SN_FAIL_NGR phy%d sn fail ngr\n",
1563                         phy_no);
1564
1565         if (irq_value & CHL_INT0_SL_IDAF_FAIL_MSK ||
1566                 irq_value & CHL_INT0_SL_OPAF_FAIL_MSK)
1567                 dev_dbg(dev, "abnormal: SL_ID/OPAF_FAIL phy%d check adr frm err\n",
1568                         phy_no);
1569
1570         if (irq_value & CHL_INT0_SL_PS_FAIL_OFF)
1571                 dev_dbg(dev, "abnormal: SL_PS_FAIL phy%d fail\n", phy_no);
1572
1573         /* write to zero */
1574         hisi_sas_phy_write32(hisi_hba, phy_no, CHL_INT0, irq_value);
1575
1576         if (irq_value & CHL_INT0_PHYCTRL_NOTRDY_MSK)
1577                 hisi_sas_phy_write32(hisi_hba, phy_no, CHL_INT0_MSK,
1578                                 0x3fffff & ~CHL_INT0_MSK_PHYCTRL_NOTRDY_MSK);
1579         else
1580                 hisi_sas_phy_write32(hisi_hba, phy_no, CHL_INT0_MSK,
1581                                 irq_mask_old);
1582
1583         return IRQ_HANDLED;
1584 }
1585
1586 static irqreturn_t cq_interrupt_v1_hw(int irq, void *p)
1587 {
1588         struct hisi_sas_cq *cq = p;
1589         struct hisi_hba *hisi_hba = cq->hisi_hba;
1590         struct hisi_sas_slot *slot;
1591         int queue = cq->id;
1592         struct hisi_sas_complete_v1_hdr *complete_queue =
1593                         (struct hisi_sas_complete_v1_hdr *)
1594                         hisi_hba->complete_hdr[queue];
1595         u32 irq_value, rd_point = cq->rd_point, wr_point;
1596
1597         spin_lock(&hisi_hba->lock);
1598         irq_value = hisi_sas_read32(hisi_hba, OQ_INT_SRC);
1599
1600         hisi_sas_write32(hisi_hba, OQ_INT_SRC, 1 << queue);
1601         wr_point = hisi_sas_read32(hisi_hba,
1602                         COMPL_Q_0_WR_PTR + (0x14 * queue));
1603
1604         while (rd_point != wr_point) {
1605                 struct hisi_sas_complete_v1_hdr *complete_hdr;
1606                 int idx;
1607                 u32 cmplt_hdr_data;
1608
1609                 complete_hdr = &complete_queue[rd_point];
1610                 cmplt_hdr_data = cpu_to_le32(complete_hdr->data);
1611                 idx = (cmplt_hdr_data & CMPLT_HDR_IPTT_MSK) >>
1612                       CMPLT_HDR_IPTT_OFF;
1613                 slot = &hisi_hba->slot_info[idx];
1614
1615                 /* The completion queue and queue slot index are not
1616                  * necessarily the same as the delivery queue and
1617                  * queue slot index.
1618                  */
1619                 slot->cmplt_queue_slot = rd_point;
1620                 slot->cmplt_queue = queue;
1621                 slot_complete_v1_hw(hisi_hba, slot);
1622
1623                 if (++rd_point >= HISI_SAS_QUEUE_SLOTS)
1624                         rd_point = 0;
1625         }
1626
1627         /* update rd_point */
1628         cq->rd_point = rd_point;
1629         hisi_sas_write32(hisi_hba, COMPL_Q_0_RD_PTR + (0x14 * queue), rd_point);
1630         spin_unlock(&hisi_hba->lock);
1631
1632         return IRQ_HANDLED;
1633 }
1634
1635 static irqreturn_t fatal_ecc_int_v1_hw(int irq, void *p)
1636 {
1637         struct hisi_hba *hisi_hba = p;
1638         struct device *dev = hisi_hba->dev;
1639         u32 ecc_int = hisi_sas_read32(hisi_hba, SAS_ECC_INTR);
1640
1641         if (ecc_int & SAS_ECC_INTR_DQ_ECC1B_MSK) {
1642                 u32 ecc_err = hisi_sas_read32(hisi_hba, HGC_ECC_ERR);
1643
1644                 panic("%s: Fatal DQ 1b ECC interrupt (0x%x)\n",
1645                       dev_name(dev), ecc_err);
1646         }
1647
1648         if (ecc_int & SAS_ECC_INTR_DQ_ECCBAD_MSK) {
1649                 u32 addr = (hisi_sas_read32(hisi_hba, HGC_DQ_ECC_ADDR) &
1650                                 HGC_DQ_ECC_ADDR_BAD_MSK) >>
1651                                 HGC_DQ_ECC_ADDR_BAD_OFF;
1652
1653                 panic("%s: Fatal DQ RAM ECC interrupt @ 0x%08x\n",
1654                       dev_name(dev), addr);
1655         }
1656
1657         if (ecc_int & SAS_ECC_INTR_IOST_ECC1B_MSK) {
1658                 u32 ecc_err = hisi_sas_read32(hisi_hba, HGC_ECC_ERR);
1659
1660                 panic("%s: Fatal IOST 1b ECC interrupt (0x%x)\n",
1661                       dev_name(dev), ecc_err);
1662         }
1663
1664         if (ecc_int & SAS_ECC_INTR_IOST_ECCBAD_MSK) {
1665                 u32 addr = (hisi_sas_read32(hisi_hba, HGC_IOST_ECC_ADDR) &
1666                                 HGC_IOST_ECC_ADDR_BAD_MSK) >>
1667                                 HGC_IOST_ECC_ADDR_BAD_OFF;
1668
1669                 panic("%s: Fatal IOST RAM ECC interrupt @ 0x%08x\n",
1670                       dev_name(dev), addr);
1671         }
1672
1673         if (ecc_int & SAS_ECC_INTR_ITCT_ECCBAD_MSK) {
1674                 u32 addr = (hisi_sas_read32(hisi_hba, HGC_ITCT_ECC_ADDR) &
1675                                 HGC_ITCT_ECC_ADDR_BAD_MSK) >>
1676                                 HGC_ITCT_ECC_ADDR_BAD_OFF;
1677
1678                 panic("%s: Fatal TCT RAM ECC interrupt @ 0x%08x\n",
1679                       dev_name(dev), addr);
1680         }
1681
1682         if (ecc_int & SAS_ECC_INTR_ITCT_ECC1B_MSK) {
1683                 u32 ecc_err = hisi_sas_read32(hisi_hba, HGC_ECC_ERR);
1684
1685                 panic("%s: Fatal ITCT 1b ECC interrupt (0x%x)\n",
1686                       dev_name(dev), ecc_err);
1687         }
1688
1689         hisi_sas_write32(hisi_hba, SAS_ECC_INTR, ecc_int | 0x3f);
1690
1691         return IRQ_HANDLED;
1692 }
1693
1694 static irqreturn_t fatal_axi_int_v1_hw(int irq, void *p)
1695 {
1696         struct hisi_hba *hisi_hba = p;
1697         struct device *dev = hisi_hba->dev;
1698         u32 axi_int = hisi_sas_read32(hisi_hba, ENT_INT_SRC2);
1699         u32 axi_info = hisi_sas_read32(hisi_hba, HGC_AXI_FIFO_ERR_INFO);
1700
1701         if (axi_int & ENT_INT_SRC2_DQ_CFG_ERR_MSK)
1702                 panic("%s: Fatal DQ_CFG_ERR interrupt (0x%x)\n",
1703                       dev_name(dev), axi_info);
1704
1705         if (axi_int & ENT_INT_SRC2_CQ_CFG_ERR_MSK)
1706                 panic("%s: Fatal CQ_CFG_ERR interrupt (0x%x)\n",
1707                       dev_name(dev), axi_info);
1708
1709         if (axi_int & ENT_INT_SRC2_AXI_WRONG_INT_MSK)
1710                 panic("%s: Fatal AXI_WRONG_INT interrupt (0x%x)\n",
1711                       dev_name(dev), axi_info);
1712
1713         if (axi_int & ENT_INT_SRC2_AXI_OVERLF_INT_MSK)
1714                 panic("%s: Fatal AXI_OVERLF_INT incorrect interrupt (0x%x)\n",
1715                       dev_name(dev), axi_info);
1716
1717         hisi_sas_write32(hisi_hba, ENT_INT_SRC2, axi_int | 0x30000000);
1718
1719         return IRQ_HANDLED;
1720 }
1721
1722 static irq_handler_t phy_interrupts[HISI_SAS_PHY_INT_NR] = {
1723         int_bcast_v1_hw,
1724         int_phyup_v1_hw,
1725         int_abnormal_v1_hw
1726 };
1727
1728 static irq_handler_t fatal_interrupts[HISI_SAS_MAX_QUEUES] = {
1729         fatal_ecc_int_v1_hw,
1730         fatal_axi_int_v1_hw
1731 };
1732
1733 static int interrupt_init_v1_hw(struct hisi_hba *hisi_hba)
1734 {
1735         struct platform_device *pdev = hisi_hba->platform_dev;
1736         struct device *dev = &pdev->dev;
1737         int i, j, irq, rc, idx;
1738
1739         for (i = 0; i < hisi_hba->n_phy; i++) {
1740                 struct hisi_sas_phy *phy = &hisi_hba->phy[i];
1741
1742                 idx = i * HISI_SAS_PHY_INT_NR;
1743                 for (j = 0; j < HISI_SAS_PHY_INT_NR; j++, idx++) {
1744                         irq = platform_get_irq(pdev, idx);
1745                         if (!irq) {
1746                                 dev_err(dev,
1747                                         "irq init: fail map phy interrupt %d\n",
1748                                         idx);
1749                                 return -ENOENT;
1750                         }
1751
1752                         rc = devm_request_irq(dev, irq, phy_interrupts[j], 0,
1753                                               DRV_NAME " phy", phy);
1754                         if (rc) {
1755                                 dev_err(dev, "irq init: could not request "
1756                                         "phy interrupt %d, rc=%d\n",
1757                                         irq, rc);
1758                                 return -ENOENT;
1759                         }
1760                 }
1761         }
1762
1763         idx = hisi_hba->n_phy * HISI_SAS_PHY_INT_NR;
1764         for (i = 0; i < hisi_hba->queue_count; i++, idx++) {
1765                 irq = platform_get_irq(pdev, idx);
1766                 if (!irq) {
1767                         dev_err(dev, "irq init: could not map cq interrupt %d\n",
1768                                 idx);
1769                         return -ENOENT;
1770                 }
1771
1772                 rc = devm_request_irq(dev, irq, cq_interrupt_v1_hw, 0,
1773                                       DRV_NAME " cq", &hisi_hba->cq[i]);
1774                 if (rc) {
1775                         dev_err(dev, "irq init: could not request cq interrupt %d, rc=%d\n",
1776                                 irq, rc);
1777                         return -ENOENT;
1778                 }
1779         }
1780
1781         idx = (hisi_hba->n_phy * HISI_SAS_PHY_INT_NR) + hisi_hba->queue_count;
1782         for (i = 0; i < HISI_SAS_FATAL_INT_NR; i++, idx++) {
1783                 irq = platform_get_irq(pdev, idx);
1784                 if (!irq) {
1785                         dev_err(dev, "irq init: could not map fatal interrupt %d\n",
1786                                 idx);
1787                         return -ENOENT;
1788                 }
1789
1790                 rc = devm_request_irq(dev, irq, fatal_interrupts[i], 0,
1791                                       DRV_NAME " fatal", hisi_hba);
1792                 if (rc) {
1793                         dev_err(dev,
1794                                 "irq init: could not request fatal interrupt %d, rc=%d\n",
1795                                 irq, rc);
1796                         return -ENOENT;
1797                 }
1798         }
1799
1800         return 0;
1801 }
1802
1803 static int interrupt_openall_v1_hw(struct hisi_hba *hisi_hba)
1804 {
1805         int i;
1806         u32 val;
1807
1808         for (i = 0; i < hisi_hba->n_phy; i++) {
1809                 /* Clear interrupt status */
1810                 val = hisi_sas_phy_read32(hisi_hba, i, CHL_INT0);
1811                 hisi_sas_phy_write32(hisi_hba, i, CHL_INT0, val);
1812                 val = hisi_sas_phy_read32(hisi_hba, i, CHL_INT1);
1813                 hisi_sas_phy_write32(hisi_hba, i, CHL_INT1, val);
1814                 val = hisi_sas_phy_read32(hisi_hba, i, CHL_INT2);
1815                 hisi_sas_phy_write32(hisi_hba, i, CHL_INT2, val);
1816
1817                 /* Unmask interrupt */
1818                 hisi_sas_phy_write32(hisi_hba, i, CHL_INT0_MSK, 0x3ce3ee);
1819                 hisi_sas_phy_write32(hisi_hba, i, CHL_INT1_MSK, 0x17fff);
1820                 hisi_sas_phy_write32(hisi_hba, i, CHL_INT2_MSK, 0x8000012a);
1821
1822                 /* bypass chip bug mask abnormal intr */
1823                 hisi_sas_phy_write32(hisi_hba, i, CHL_INT0_MSK,
1824                                 0x3fffff & ~CHL_INT0_MSK_PHYCTRL_NOTRDY_MSK);
1825         }
1826
1827         return 0;
1828 }
1829
1830 static int hisi_sas_v1_init(struct hisi_hba *hisi_hba)
1831 {
1832         int rc;
1833
1834         rc = hw_init_v1_hw(hisi_hba);
1835         if (rc)
1836                 return rc;
1837
1838         rc = interrupt_init_v1_hw(hisi_hba);
1839         if (rc)
1840                 return rc;
1841
1842         rc = interrupt_openall_v1_hw(hisi_hba);
1843         if (rc)
1844                 return rc;
1845
1846         return 0;
1847 }
1848
1849 static const struct hisi_sas_hw hisi_sas_v1_hw = {
1850         .hw_init = hisi_sas_v1_init,
1851         .setup_itct = setup_itct_v1_hw,
1852         .sl_notify = sl_notify_v1_hw,
1853         .free_device = free_device_v1_hw,
1854         .prep_smp = prep_smp_v1_hw,
1855         .prep_ssp = prep_ssp_v1_hw,
1856         .get_free_slot = get_free_slot_v1_hw,
1857         .start_delivery = start_delivery_v1_hw,
1858         .slot_complete = slot_complete_v1_hw,
1859         .phys_init = phys_init_v1_hw,
1860         .phy_enable = enable_phy_v1_hw,
1861         .phy_disable = disable_phy_v1_hw,
1862         .phy_hard_reset = phy_hard_reset_v1_hw,
1863         .phy_set_linkrate = phy_set_linkrate_v1_hw,
1864         .phy_get_max_linkrate = phy_get_max_linkrate_v1_hw,
1865         .get_wideport_bitmap = get_wideport_bitmap_v1_hw,
1866         .max_command_entries = HISI_SAS_COMMAND_ENTRIES_V1_HW,
1867         .complete_hdr_size = sizeof(struct hisi_sas_complete_v1_hdr),
1868 };
1869
1870 static int hisi_sas_v1_probe(struct platform_device *pdev)
1871 {
1872         return hisi_sas_probe(pdev, &hisi_sas_v1_hw);
1873 }
1874
1875 static int hisi_sas_v1_remove(struct platform_device *pdev)
1876 {
1877         return hisi_sas_remove(pdev);
1878 }
1879
1880 static const struct of_device_id sas_v1_of_match[] = {
1881         { .compatible = "hisilicon,hip05-sas-v1",},
1882         {},
1883 };
1884 MODULE_DEVICE_TABLE(of, sas_v1_of_match);
1885
1886 static const struct acpi_device_id sas_v1_acpi_match[] = {
1887         { "HISI0161", 0 },
1888         { }
1889 };
1890
1891 MODULE_DEVICE_TABLE(acpi, sas_v1_acpi_match);
1892
1893 static struct platform_driver hisi_sas_v1_driver = {
1894         .probe = hisi_sas_v1_probe,
1895         .remove = hisi_sas_v1_remove,
1896         .driver = {
1897                 .name = DRV_NAME,
1898                 .of_match_table = sas_v1_of_match,
1899                 .acpi_match_table = ACPI_PTR(sas_v1_acpi_match),
1900         },
1901 };
1902
1903 module_platform_driver(hisi_sas_v1_driver);
1904
1905 MODULE_LICENSE("GPL");
1906 MODULE_AUTHOR("John Garry <john.garry@huawei.com>");
1907 MODULE_DESCRIPTION("HISILICON SAS controller v1 hw driver");
1908 MODULE_ALIAS("platform:" DRV_NAME);