drivers/scsi/hisi_sas/hisi_sas_v2_hw.c

   1 /*
   2  * Copyright (c) 2016 Linaro Ltd.
   3  * Copyright (c) 2016 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_v2_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 IO_BROKEN_MSG_ADDR_LO           0x18
  22 #define IO_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 PORT_STATE_PHY8_PORT_NUM_OFF    16
  28 #define PORT_STATE_PHY8_PORT_NUM_MSK    (0xf << PORT_STATE_PHY8_PORT_NUM_OFF)
  29 #define PORT_STATE_PHY8_CONN_RATE_OFF   20
  30 #define PORT_STATE_PHY8_CONN_RATE_MSK   (0xf << PORT_STATE_PHY8_CONN_RATE_OFF)
  31 #define PHY_CONN_RATE                   0x30
  32 #define HGC_TRANS_TASK_CNT_LIMIT        0x38
  33 #define AXI_AHB_CLK_CFG                 0x3c
  34 #define ITCT_CLR                        0x44
  35 #define ITCT_CLR_EN_OFF                 16
  36 #define ITCT_CLR_EN_MSK                 (0x1 << ITCT_CLR_EN_OFF)
  37 #define ITCT_DEV_OFF                    0
  38 #define ITCT_DEV_MSK                    (0x7ff << ITCT_DEV_OFF)
  39 #define AXI_USER1                       0x48
  40 #define AXI_USER2                       0x4c
  41 #define IO_SATA_BROKEN_MSG_ADDR_LO      0x58
  42 #define IO_SATA_BROKEN_MSG_ADDR_HI      0x5c
  43 #define SATA_INITI_D2H_STORE_ADDR_LO    0x60
  44 #define SATA_INITI_D2H_STORE_ADDR_HI    0x64
  45 #define HGC_SAS_TX_OPEN_FAIL_RETRY_CTRL 0x84
  46 #define HGC_SAS_TXFAIL_RETRY_CTRL       0x88
  47 #define HGC_GET_ITV_TIME                0x90
  48 #define DEVICE_MSG_WORK_MODE            0x94
  49 #define OPENA_WT_CONTI_TIME             0x9c
  50 #define I_T_NEXUS_LOSS_TIME             0xa0
  51 #define MAX_CON_TIME_LIMIT_TIME         0xa4
  52 #define BUS_INACTIVE_LIMIT_TIME         0xa8
  53 #define REJECT_TO_OPEN_LIMIT_TIME       0xac
  54 #define CFG_AGING_TIME                  0xbc
  55 #define HGC_DFX_CFG2                    0xc0
  56 #define HGC_IOMB_PROC1_STATUS   0x104
  57 #define CFG_1US_TIMER_TRSH              0xcc
  58 #define HGC_LM_DFX_STATUS2              0x128
  59 #define HGC_LM_DFX_STATUS2_IOSTLIST_OFF         0
  60 #define HGC_LM_DFX_STATUS2_IOSTLIST_MSK (0xfff << \
  61                                          HGC_LM_DFX_STATUS2_IOSTLIST_OFF)
  62 #define HGC_LM_DFX_STATUS2_ITCTLIST_OFF         12
  63 #define HGC_LM_DFX_STATUS2_ITCTLIST_MSK (0x7ff << \
  64                                          HGC_LM_DFX_STATUS2_ITCTLIST_OFF)
  65 #define HGC_CQE_ECC_ADDR                0x13c
  66 #define HGC_CQE_ECC_1B_ADDR_OFF 0
  67 #define HGC_CQE_ECC_1B_ADDR_MSK (0x3f << HGC_CQE_ECC_1B_ADDR_OFF)
  68 #define HGC_CQE_ECC_MB_ADDR_OFF 8
  69 #define HGC_CQE_ECC_MB_ADDR_MSK (0x3f << HGC_CQE_ECC_MB_ADDR_OFF)
  70 #define HGC_IOST_ECC_ADDR               0x140
  71 #define HGC_IOST_ECC_1B_ADDR_OFF        0
  72 #define HGC_IOST_ECC_1B_ADDR_MSK        (0x3ff << HGC_IOST_ECC_1B_ADDR_OFF)
  73 #define HGC_IOST_ECC_MB_ADDR_OFF        16
  74 #define HGC_IOST_ECC_MB_ADDR_MSK        (0x3ff << HGC_IOST_ECC_MB_ADDR_OFF)
  75 #define HGC_DQE_ECC_ADDR                0x144
  76 #define HGC_DQE_ECC_1B_ADDR_OFF 0
  77 #define HGC_DQE_ECC_1B_ADDR_MSK (0xfff << HGC_DQE_ECC_1B_ADDR_OFF)
  78 #define HGC_DQE_ECC_MB_ADDR_OFF 16
  79 #define HGC_DQE_ECC_MB_ADDR_MSK (0xfff << HGC_DQE_ECC_MB_ADDR_OFF)
  80 #define HGC_INVLD_DQE_INFO              0x148
  81 #define HGC_INVLD_DQE_INFO_FB_CH0_OFF   9
  82 #define HGC_INVLD_DQE_INFO_FB_CH0_MSK   (0x1 << HGC_INVLD_DQE_INFO_FB_CH0_OFF)
  83 #define HGC_INVLD_DQE_INFO_FB_CH3_OFF   18
  84 #define HGC_ITCT_ECC_ADDR               0x150
  85 #define HGC_ITCT_ECC_1B_ADDR_OFF                0
  86 #define HGC_ITCT_ECC_1B_ADDR_MSK                (0x3ff << \
  87                                                  HGC_ITCT_ECC_1B_ADDR_OFF)
  88 #define HGC_ITCT_ECC_MB_ADDR_OFF                16
  89 #define HGC_ITCT_ECC_MB_ADDR_MSK                (0x3ff << \
  90                                                  HGC_ITCT_ECC_MB_ADDR_OFF)
  91 #define HGC_AXI_FIFO_ERR_INFO   0x154
  92 #define AXI_ERR_INFO_OFF                0
  93 #define AXI_ERR_INFO_MSK                (0xff << AXI_ERR_INFO_OFF)
  94 #define FIFO_ERR_INFO_OFF               8
  95 #define FIFO_ERR_INFO_MSK               (0xff << FIFO_ERR_INFO_OFF)
  96 #define INT_COAL_EN                     0x19c
  97 #define OQ_INT_COAL_TIME                0x1a0
  98 #define OQ_INT_COAL_CNT                 0x1a4
  99 #define ENT_INT_COAL_TIME               0x1a8
 100 #define ENT_INT_COAL_CNT                0x1ac
 101 #define OQ_INT_SRC                      0x1b0
 102 #define OQ_INT_SRC_MSK                  0x1b4
 103 #define ENT_INT_SRC1                    0x1b8
 104 #define ENT_INT_SRC1_D2H_FIS_CH0_OFF    0
 105 #define ENT_INT_SRC1_D2H_FIS_CH0_MSK    (0x1 << ENT_INT_SRC1_D2H_FIS_CH0_OFF)
 106 #define ENT_INT_SRC1_D2H_FIS_CH1_OFF    8
 107 #define ENT_INT_SRC1_D2H_FIS_CH1_MSK    (0x1 << ENT_INT_SRC1_D2H_FIS_CH1_OFF)
 108 #define ENT_INT_SRC2                    0x1bc
 109 #define ENT_INT_SRC3                    0x1c0
 110 #define ENT_INT_SRC3_WP_DEPTH_OFF               8
 111 #define ENT_INT_SRC3_IPTT_SLOT_NOMATCH_OFF      9
 112 #define ENT_INT_SRC3_RP_DEPTH_OFF               10
 113 #define ENT_INT_SRC3_AXI_OFF                    11
 114 #define ENT_INT_SRC3_FIFO_OFF                   12
 115 #define ENT_INT_SRC3_LM_OFF                             14
 116 #define ENT_INT_SRC3_ITC_INT_OFF        15
 117 #define ENT_INT_SRC3_ITC_INT_MSK        (0x1 << ENT_INT_SRC3_ITC_INT_OFF)
 118 #define ENT_INT_SRC3_ABT_OFF            16
 119 #define ENT_INT_SRC_MSK1                0x1c4
 120 #define ENT_INT_SRC_MSK2                0x1c8
 121 #define ENT_INT_SRC_MSK3                0x1cc
 122 #define ENT_INT_SRC_MSK3_ENT95_MSK_OFF  31
 123 #define ENT_INT_SRC_MSK3_ENT95_MSK_MSK  (0x1 << ENT_INT_SRC_MSK3_ENT95_MSK_OFF)
 124 #define SAS_ECC_INTR                    0x1e8
 125 #define SAS_ECC_INTR_DQE_ECC_1B_OFF             0
 126 #define SAS_ECC_INTR_DQE_ECC_MB_OFF             1
 127 #define SAS_ECC_INTR_IOST_ECC_1B_OFF    2
 128 #define SAS_ECC_INTR_IOST_ECC_MB_OFF    3
 129 #define SAS_ECC_INTR_ITCT_ECC_MB_OFF    4
 130 #define SAS_ECC_INTR_ITCT_ECC_1B_OFF    5
 131 #define SAS_ECC_INTR_IOSTLIST_ECC_MB_OFF        6
 132 #define SAS_ECC_INTR_IOSTLIST_ECC_1B_OFF        7
 133 #define SAS_ECC_INTR_ITCTLIST_ECC_1B_OFF        8
 134 #define SAS_ECC_INTR_ITCTLIST_ECC_MB_OFF        9
 135 #define SAS_ECC_INTR_CQE_ECC_1B_OFF             10
 136 #define SAS_ECC_INTR_CQE_ECC_MB_OFF             11
 137 #define SAS_ECC_INTR_NCQ_MEM0_ECC_MB_OFF        12
 138 #define SAS_ECC_INTR_NCQ_MEM0_ECC_1B_OFF        13
 139 #define SAS_ECC_INTR_NCQ_MEM1_ECC_MB_OFF        14
 140 #define SAS_ECC_INTR_NCQ_MEM1_ECC_1B_OFF        15
 141 #define SAS_ECC_INTR_NCQ_MEM2_ECC_MB_OFF        16
 142 #define SAS_ECC_INTR_NCQ_MEM2_ECC_1B_OFF        17
 143 #define SAS_ECC_INTR_NCQ_MEM3_ECC_MB_OFF        18
 144 #define SAS_ECC_INTR_NCQ_MEM3_ECC_1B_OFF        19
 145 #define SAS_ECC_INTR_MSK                0x1ec
 146 #define HGC_ERR_STAT_EN                 0x238
 147 #define CQE_SEND_CNT                    0x248
 148 #define DLVRY_Q_0_BASE_ADDR_LO          0x260
 149 #define DLVRY_Q_0_BASE_ADDR_HI          0x264
 150 #define DLVRY_Q_0_DEPTH                 0x268
 151 #define DLVRY_Q_0_WR_PTR                0x26c
 152 #define DLVRY_Q_0_RD_PTR                0x270
 153 #define HYPER_STREAM_ID_EN_CFG          0xc80
 154 #define OQ0_INT_SRC_MSK                 0xc90
 155 #define COMPL_Q_0_BASE_ADDR_LO          0x4e0
 156 #define COMPL_Q_0_BASE_ADDR_HI          0x4e4
 157 #define COMPL_Q_0_DEPTH                 0x4e8
 158 #define COMPL_Q_0_WR_PTR                0x4ec
 159 #define COMPL_Q_0_RD_PTR                0x4f0
 160 #define HGC_RXM_DFX_STATUS14    0xae8
 161 #define HGC_RXM_DFX_STATUS14_MEM0_OFF           0
 162 #define HGC_RXM_DFX_STATUS14_MEM0_MSK           (0x1ff << \
 163                                                  HGC_RXM_DFX_STATUS14_MEM0_OFF)
 164 #define HGC_RXM_DFX_STATUS14_MEM1_OFF           9
 165 #define HGC_RXM_DFX_STATUS14_MEM1_MSK           (0x1ff << \
 166                                                  HGC_RXM_DFX_STATUS14_MEM1_OFF)
 167 #define HGC_RXM_DFX_STATUS14_MEM2_OFF           18
 168 #define HGC_RXM_DFX_STATUS14_MEM2_MSK           (0x1ff << \
 169                                                  HGC_RXM_DFX_STATUS14_MEM2_OFF)
 170 #define HGC_RXM_DFX_STATUS15    0xaec
 171 #define HGC_RXM_DFX_STATUS15_MEM3_OFF           0
 172 #define HGC_RXM_DFX_STATUS15_MEM3_MSK           (0x1ff << \
 173                                                  HGC_RXM_DFX_STATUS15_MEM3_OFF)
 174 /* phy registers need init */
 175 #define PORT_BASE                       (0x2000)
 176
 177 #define PHY_CFG                         (PORT_BASE + 0x0)
 178 #define HARD_PHY_LINKRATE               (PORT_BASE + 0x4)
 179 #define PHY_CFG_ENA_OFF                 0
 180 #define PHY_CFG_ENA_MSK                 (0x1 << PHY_CFG_ENA_OFF)
 181 #define PHY_CFG_DC_OPT_OFF              2
 182 #define PHY_CFG_DC_OPT_MSK              (0x1 << PHY_CFG_DC_OPT_OFF)
 183 #define PROG_PHY_LINK_RATE              (PORT_BASE + 0x8)
 184 #define PROG_PHY_LINK_RATE_MAX_OFF      0
 185 #define PROG_PHY_LINK_RATE_MAX_MSK      (0xff << PROG_PHY_LINK_RATE_MAX_OFF)
 186 #define PHY_CTRL                        (PORT_BASE + 0x14)
 187 #define PHY_CTRL_RESET_OFF              0
 188 #define PHY_CTRL_RESET_MSK              (0x1 << PHY_CTRL_RESET_OFF)
 189 #define SAS_PHY_CTRL                    (PORT_BASE + 0x20)
 190 #define SL_CFG                          (PORT_BASE + 0x84)
 191 #define PHY_PCN                         (PORT_BASE + 0x44)
 192 #define SL_TOUT_CFG                     (PORT_BASE + 0x8c)
 193 #define SL_CONTROL                      (PORT_BASE + 0x94)
 194 #define SL_CONTROL_NOTIFY_EN_OFF        0
 195 #define SL_CONTROL_NOTIFY_EN_MSK        (0x1 << SL_CONTROL_NOTIFY_EN_OFF)
 196 #define SL_CONTROL_CTA_OFF              17
 197 #define SL_CONTROL_CTA_MSK              (0x1 << SL_CONTROL_CTA_OFF)
 198 #define RX_PRIMS_STATUS                 (PORT_BASE + 0x98)
 199 #define RX_BCAST_CHG_OFF                1
 200 #define RX_BCAST_CHG_MSK                (0x1 << RX_BCAST_CHG_OFF)
 201 #define TX_ID_DWORD0                    (PORT_BASE + 0x9c)
 202 #define TX_ID_DWORD1                    (PORT_BASE + 0xa0)
 203 #define TX_ID_DWORD2                    (PORT_BASE + 0xa4)
 204 #define TX_ID_DWORD3                    (PORT_BASE + 0xa8)
 205 #define TX_ID_DWORD4                    (PORT_BASE + 0xaC)
 206 #define TX_ID_DWORD5                    (PORT_BASE + 0xb0)
 207 #define TX_ID_DWORD6                    (PORT_BASE + 0xb4)
 208 #define TXID_AUTO                       (PORT_BASE + 0xb8)
 209 #define TXID_AUTO_CT3_OFF               1
 210 #define TXID_AUTO_CT3_MSK               (0x1 << TXID_AUTO_CT3_OFF)
 211 #define TXID_AUTO_CTB_OFF               11
 212 #define TXID_AUTO_CTB_MSK               (0x1 << TXID_AUTO_CTB_OFF)
 213 #define TX_HARDRST_OFF                  2
 214 #define TX_HARDRST_MSK                  (0x1 << TX_HARDRST_OFF)
 215 #define RX_IDAF_DWORD0                  (PORT_BASE + 0xc4)
 216 #define RX_IDAF_DWORD1                  (PORT_BASE + 0xc8)
 217 #define RX_IDAF_DWORD2                  (PORT_BASE + 0xcc)
 218 #define RX_IDAF_DWORD3                  (PORT_BASE + 0xd0)
 219 #define RX_IDAF_DWORD4                  (PORT_BASE + 0xd4)
 220 #define RX_IDAF_DWORD5                  (PORT_BASE + 0xd8)
 221 #define RX_IDAF_DWORD6                  (PORT_BASE + 0xdc)
 222 #define RXOP_CHECK_CFG_H                (PORT_BASE + 0xfc)
 223 #define CON_CONTROL                     (PORT_BASE + 0x118)
 224 #define CON_CONTROL_CFG_OPEN_ACC_STP_OFF        0
 225 #define CON_CONTROL_CFG_OPEN_ACC_STP_MSK        \
 226                 (0x01 << CON_CONTROL_CFG_OPEN_ACC_STP_OFF)
 227 #define DONE_RECEIVED_TIME              (PORT_BASE + 0x11c)
 228 #define CHL_INT0                        (PORT_BASE + 0x1b4)
 229 #define CHL_INT0_HOTPLUG_TOUT_OFF       0
 230 #define CHL_INT0_HOTPLUG_TOUT_MSK       (0x1 << CHL_INT0_HOTPLUG_TOUT_OFF)
 231 #define CHL_INT0_SL_RX_BCST_ACK_OFF     1
 232 #define CHL_INT0_SL_RX_BCST_ACK_MSK     (0x1 << CHL_INT0_SL_RX_BCST_ACK_OFF)
 233 #define CHL_INT0_SL_PHY_ENABLE_OFF      2
 234 #define CHL_INT0_SL_PHY_ENABLE_MSK      (0x1 << CHL_INT0_SL_PHY_ENABLE_OFF)
 235 #define CHL_INT0_NOT_RDY_OFF            4
 236 #define CHL_INT0_NOT_RDY_MSK            (0x1 << CHL_INT0_NOT_RDY_OFF)
 237 #define CHL_INT0_PHY_RDY_OFF            5
 238 #define CHL_INT0_PHY_RDY_MSK            (0x1 << CHL_INT0_PHY_RDY_OFF)
 239 #define CHL_INT1                        (PORT_BASE + 0x1b8)
 240 #define CHL_INT1_DMAC_TX_ECC_ERR_OFF    15
 241 #define CHL_INT1_DMAC_TX_ECC_ERR_MSK    (0x1 << CHL_INT1_DMAC_TX_ECC_ERR_OFF)
 242 #define CHL_INT1_DMAC_RX_ECC_ERR_OFF    17
 243 #define CHL_INT1_DMAC_RX_ECC_ERR_MSK    (0x1 << CHL_INT1_DMAC_RX_ECC_ERR_OFF)
 244 #define CHL_INT1_DMAC_TX_AXI_WR_ERR_OFF 19
 245 #define CHL_INT1_DMAC_TX_AXI_RD_ERR_OFF 20
 246 #define CHL_INT1_DMAC_RX_AXI_WR_ERR_OFF 21
 247 #define CHL_INT1_DMAC_RX_AXI_RD_ERR_OFF 22
 248 #define CHL_INT2                        (PORT_BASE + 0x1bc)
 249 #define CHL_INT2_SL_IDAF_TOUT_CONF_OFF  0
 250 #define CHL_INT0_MSK                    (PORT_BASE + 0x1c0)
 251 #define CHL_INT1_MSK                    (PORT_BASE + 0x1c4)
 252 #define CHL_INT2_MSK                    (PORT_BASE + 0x1c8)
 253 #define CHL_INT_COAL_EN                 (PORT_BASE + 0x1d0)
 254 #define DMA_TX_DFX0                             (PORT_BASE + 0x200)
 255 #define DMA_TX_DFX1                             (PORT_BASE + 0x204)
 256 #define DMA_TX_DFX1_IPTT_OFF            0
 257 #define DMA_TX_DFX1_IPTT_MSK            (0xffff << DMA_TX_DFX1_IPTT_OFF)
 258 #define DMA_TX_FIFO_DFX0                (PORT_BASE + 0x240)
 259 #define PORT_DFX0                               (PORT_BASE + 0x258)
 260 #define LINK_DFX2                                       (PORT_BASE + 0X264)
 261 #define LINK_DFX2_RCVR_HOLD_STS_OFF     9
 262 #define LINK_DFX2_RCVR_HOLD_STS_MSK     (0x1 << LINK_DFX2_RCVR_HOLD_STS_OFF)
 263 #define LINK_DFX2_SEND_HOLD_STS_OFF     10
 264 #define LINK_DFX2_SEND_HOLD_STS_MSK     (0x1 << LINK_DFX2_SEND_HOLD_STS_OFF)
 265 #define SAS_ERR_CNT4_REG                (PORT_BASE + 0x290)
 266 #define SAS_ERR_CNT6_REG                (PORT_BASE + 0x298)
 267 #define PHY_CTRL_RDY_MSK                (PORT_BASE + 0x2b0)
 268 #define PHYCTRL_NOT_RDY_MSK             (PORT_BASE + 0x2b4)
 269 #define PHYCTRL_DWS_RESET_MSK           (PORT_BASE + 0x2b8)
 270 #define PHYCTRL_PHY_ENA_MSK             (PORT_BASE + 0x2bc)
 271 #define SL_RX_BCAST_CHK_MSK             (PORT_BASE + 0x2c0)
 272 #define PHYCTRL_OOB_RESTART_MSK         (PORT_BASE + 0x2c4)
 273 #define DMA_TX_STATUS                   (PORT_BASE + 0x2d0)
 274 #define DMA_TX_STATUS_BUSY_OFF          0
 275 #define DMA_TX_STATUS_BUSY_MSK          (0x1 << DMA_TX_STATUS_BUSY_OFF)
 276 #define DMA_RX_STATUS                   (PORT_BASE + 0x2e8)
 277 #define DMA_RX_STATUS_BUSY_OFF          0
 278 #define DMA_RX_STATUS_BUSY_MSK          (0x1 << DMA_RX_STATUS_BUSY_OFF)
 279
 280 #define AXI_CFG                         (0x5100)
 281 #define AM_CFG_MAX_TRANS                (0x5010)
 282 #define AM_CFG_SINGLE_PORT_MAX_TRANS    (0x5014)
 283
 284 #define AXI_MASTER_CFG_BASE             (0x5000)
 285 #define AM_CTRL_GLOBAL                  (0x0)
 286 #define AM_CURR_TRANS_RETURN    (0x150)
 287
 288 /* HW dma structures */
 289 /* Delivery queue header */
 290 /* dw0 */
 291 #define CMD_HDR_ABORT_FLAG_OFF          0
 292 #define CMD_HDR_ABORT_FLAG_MSK          (0x3 << CMD_HDR_ABORT_FLAG_OFF)
 293 #define CMD_HDR_ABORT_DEVICE_TYPE_OFF   2
 294 #define CMD_HDR_ABORT_DEVICE_TYPE_MSK   (0x1 << CMD_HDR_ABORT_DEVICE_TYPE_OFF)
 295 #define CMD_HDR_RESP_REPORT_OFF         5
 296 #define CMD_HDR_RESP_REPORT_MSK         (0x1 << CMD_HDR_RESP_REPORT_OFF)
 297 #define CMD_HDR_TLR_CTRL_OFF            6
 298 #define CMD_HDR_TLR_CTRL_MSK            (0x3 << CMD_HDR_TLR_CTRL_OFF)
 299 #define CMD_HDR_PHY_ID_OFF              8
 300 #define CMD_HDR_PHY_ID_MSK              (0x1ff << CMD_HDR_PHY_ID_OFF)
 301 #define CMD_HDR_FORCE_PHY_OFF           17
 302 #define CMD_HDR_FORCE_PHY_MSK           (0x1 << CMD_HDR_FORCE_PHY_OFF)
 303 #define CMD_HDR_PORT_OFF                18
 304 #define CMD_HDR_PORT_MSK                (0xf << CMD_HDR_PORT_OFF)
 305 #define CMD_HDR_PRIORITY_OFF            27
 306 #define CMD_HDR_PRIORITY_MSK            (0x1 << CMD_HDR_PRIORITY_OFF)
 307 #define CMD_HDR_CMD_OFF                 29
 308 #define CMD_HDR_CMD_MSK                 (0x7 << CMD_HDR_CMD_OFF)
 309 /* dw1 */
 310 #define CMD_HDR_DIR_OFF                 5
 311 #define CMD_HDR_DIR_MSK                 (0x3 << CMD_HDR_DIR_OFF)
 312 #define CMD_HDR_RESET_OFF               7
 313 #define CMD_HDR_RESET_MSK               (0x1 << CMD_HDR_RESET_OFF)
 314 #define CMD_HDR_VDTL_OFF                10
 315 #define CMD_HDR_VDTL_MSK                (0x1 << CMD_HDR_VDTL_OFF)
 316 #define CMD_HDR_FRAME_TYPE_OFF          11
 317 #define CMD_HDR_FRAME_TYPE_MSK          (0x1f << CMD_HDR_FRAME_TYPE_OFF)
 318 #define CMD_HDR_DEV_ID_OFF              16
 319 #define CMD_HDR_DEV_ID_MSK              (0xffff << CMD_HDR_DEV_ID_OFF)
 320 /* dw2 */
 321 #define CMD_HDR_CFL_OFF                 0
 322 #define CMD_HDR_CFL_MSK                 (0x1ff << CMD_HDR_CFL_OFF)
 323 #define CMD_HDR_NCQ_TAG_OFF             10
 324 #define CMD_HDR_NCQ_TAG_MSK             (0x1f << CMD_HDR_NCQ_TAG_OFF)
 325 #define CMD_HDR_MRFL_OFF                15
 326 #define CMD_HDR_MRFL_MSK                (0x1ff << CMD_HDR_MRFL_OFF)
 327 #define CMD_HDR_SG_MOD_OFF              24
 328 #define CMD_HDR_SG_MOD_MSK              (0x3 << CMD_HDR_SG_MOD_OFF)
 329 #define CMD_HDR_FIRST_BURST_OFF         26
 330 #define CMD_HDR_FIRST_BURST_MSK         (0x1 << CMD_HDR_SG_MOD_OFF)
 331 /* dw3 */
 332 #define CMD_HDR_IPTT_OFF                0
 333 #define CMD_HDR_IPTT_MSK                (0xffff << CMD_HDR_IPTT_OFF)
 334 /* dw6 */
 335 #define CMD_HDR_DIF_SGL_LEN_OFF         0
 336 #define CMD_HDR_DIF_SGL_LEN_MSK         (0xffff << CMD_HDR_DIF_SGL_LEN_OFF)
 337 #define CMD_HDR_DATA_SGL_LEN_OFF        16
 338 #define CMD_HDR_DATA_SGL_LEN_MSK        (0xffff << CMD_HDR_DATA_SGL_LEN_OFF)
 339 #define CMD_HDR_ABORT_IPTT_OFF          16
 340 #define CMD_HDR_ABORT_IPTT_MSK          (0xffff << CMD_HDR_ABORT_IPTT_OFF)
 341
 342 /* Completion header */
 343 /* dw0 */
 344 #define CMPLT_HDR_ERR_PHASE_OFF 2
 345 #define CMPLT_HDR_ERR_PHASE_MSK (0xff << CMPLT_HDR_ERR_PHASE_OFF)
 346 #define CMPLT_HDR_RSPNS_XFRD_OFF        10
 347 #define CMPLT_HDR_RSPNS_XFRD_MSK        (0x1 << CMPLT_HDR_RSPNS_XFRD_OFF)
 348 #define CMPLT_HDR_ERX_OFF               12
 349 #define CMPLT_HDR_ERX_MSK               (0x1 << CMPLT_HDR_ERX_OFF)
 350 #define CMPLT_HDR_ABORT_STAT_OFF        13
 351 #define CMPLT_HDR_ABORT_STAT_MSK        (0x7 << CMPLT_HDR_ABORT_STAT_OFF)
 352 /* abort_stat */
 353 #define STAT_IO_NOT_VALID               0x1
 354 #define STAT_IO_NO_DEVICE               0x2
 355 #define STAT_IO_COMPLETE                0x3
 356 #define STAT_IO_ABORTED                 0x4
 357 /* dw1 */
 358 #define CMPLT_HDR_IPTT_OFF              0
 359 #define CMPLT_HDR_IPTT_MSK              (0xffff << CMPLT_HDR_IPTT_OFF)
 360 #define CMPLT_HDR_DEV_ID_OFF            16
 361 #define CMPLT_HDR_DEV_ID_MSK            (0xffff << CMPLT_HDR_DEV_ID_OFF)
 362
 363 /* ITCT header */
 364 /* qw0 */
 365 #define ITCT_HDR_DEV_TYPE_OFF           0
 366 #define ITCT_HDR_DEV_TYPE_MSK           (0x3 << ITCT_HDR_DEV_TYPE_OFF)
 367 #define ITCT_HDR_VALID_OFF              2
 368 #define ITCT_HDR_VALID_MSK              (0x1 << ITCT_HDR_VALID_OFF)
 369 #define ITCT_HDR_MCR_OFF                5
 370 #define ITCT_HDR_MCR_MSK                (0xf << ITCT_HDR_MCR_OFF)
 371 #define ITCT_HDR_VLN_OFF                9
 372 #define ITCT_HDR_VLN_MSK                (0xf << ITCT_HDR_VLN_OFF)
 373 #define ITCT_HDR_SMP_TIMEOUT_OFF        16
 374 #define ITCT_HDR_SMP_TIMEOUT_8US        1
 375 #define ITCT_HDR_SMP_TIMEOUT            (ITCT_HDR_SMP_TIMEOUT_8US * \
 376                                          250) /* 2ms */
 377 #define ITCT_HDR_AWT_CONTINUE_OFF       25
 378 #define ITCT_HDR_PORT_ID_OFF            28
 379 #define ITCT_HDR_PORT_ID_MSK            (0xf << ITCT_HDR_PORT_ID_OFF)
 380 /* qw2 */
 381 #define ITCT_HDR_INLT_OFF               0
 382 #define ITCT_HDR_INLT_MSK               (0xffffULL << ITCT_HDR_INLT_OFF)
 383 #define ITCT_HDR_BITLT_OFF              16
 384 #define ITCT_HDR_BITLT_MSK              (0xffffULL << ITCT_HDR_BITLT_OFF)
 385 #define ITCT_HDR_MCTLT_OFF              32
 386 #define ITCT_HDR_MCTLT_MSK              (0xffffULL << ITCT_HDR_MCTLT_OFF)
 387 #define ITCT_HDR_RTOLT_OFF              48
 388 #define ITCT_HDR_RTOLT_MSK              (0xffffULL << ITCT_HDR_RTOLT_OFF)
 389
 390 #define HISI_SAS_FATAL_INT_NR   2
 391
 392 struct hisi_sas_complete_v2_hdr {
 393         __le32 dw0;
 394         __le32 dw1;
 395         __le32 act;
 396         __le32 dw3;
 397 };
 398
 399 struct hisi_sas_err_record_v2 {
 400         /* dw0 */
 401         __le32 trans_tx_fail_type;
 402
 403         /* dw1 */
 404         __le32 trans_rx_fail_type;
 405
 406         /* dw2 */
 407         __le16 dma_tx_err_type;
 408         __le16 sipc_rx_err_type;
 409
 410         /* dw3 */
 411         __le32 dma_rx_err_type;
 412 };
 413
 414 struct signal_attenuation_s {
 415         u32 de_emphasis;
 416         u32 preshoot;
 417         u32 boost;
 418 };
 419
 420 struct sig_atten_lu_s {
 421         const struct signal_attenuation_s *att;
 422         u32 sas_phy_ctrl;
 423 };
 424
 425 static const struct hisi_sas_hw_error one_bit_ecc_errors[] = {
 426         {
 427                 .irq_msk = BIT(SAS_ECC_INTR_DQE_ECC_1B_OFF),
 428                 .msk = HGC_DQE_ECC_1B_ADDR_MSK,
 429                 .shift = HGC_DQE_ECC_1B_ADDR_OFF,
 430                 .msg = "hgc_dqe_acc1b_intr found: Ram address is 0x%08X\n",
 431                 .reg = HGC_DQE_ECC_ADDR,
 432         },
 433         {
 434                 .irq_msk = BIT(SAS_ECC_INTR_IOST_ECC_1B_OFF),
 435                 .msk = HGC_IOST_ECC_1B_ADDR_MSK,
 436                 .shift = HGC_IOST_ECC_1B_ADDR_OFF,
 437                 .msg = "hgc_iost_acc1b_intr found: Ram address is 0x%08X\n",
 438                 .reg = HGC_IOST_ECC_ADDR,
 439         },
 440         {
 441                 .irq_msk = BIT(SAS_ECC_INTR_ITCT_ECC_1B_OFF),
 442                 .msk = HGC_ITCT_ECC_1B_ADDR_MSK,
 443                 .shift = HGC_ITCT_ECC_1B_ADDR_OFF,
 444                 .msg = "hgc_itct_acc1b_intr found: am address is 0x%08X\n",
 445                 .reg = HGC_ITCT_ECC_ADDR,
 446         },
 447         {
 448                 .irq_msk = BIT(SAS_ECC_INTR_IOSTLIST_ECC_1B_OFF),
 449                 .msk = HGC_LM_DFX_STATUS2_IOSTLIST_MSK,
 450                 .shift = HGC_LM_DFX_STATUS2_IOSTLIST_OFF,
 451                 .msg = "hgc_iostl_acc1b_intr found: memory address is 0x%08X\n",
 452                 .reg = HGC_LM_DFX_STATUS2,
 453         },
 454         {
 455                 .irq_msk = BIT(SAS_ECC_INTR_ITCTLIST_ECC_1B_OFF),
 456                 .msk = HGC_LM_DFX_STATUS2_ITCTLIST_MSK,
 457                 .shift = HGC_LM_DFX_STATUS2_ITCTLIST_OFF,
 458                 .msg = "hgc_itctl_acc1b_intr found: memory address is 0x%08X\n",
 459                 .reg = HGC_LM_DFX_STATUS2,
 460         },
 461         {
 462                 .irq_msk = BIT(SAS_ECC_INTR_CQE_ECC_1B_OFF),
 463                 .msk = HGC_CQE_ECC_1B_ADDR_MSK,
 464                 .shift = HGC_CQE_ECC_1B_ADDR_OFF,
 465                 .msg = "hgc_cqe_acc1b_intr found: Ram address is 0x%08X\n",
 466                 .reg = HGC_CQE_ECC_ADDR,
 467         },
 468         {
 469                 .irq_msk = BIT(SAS_ECC_INTR_NCQ_MEM0_ECC_1B_OFF),
 470                 .msk = HGC_RXM_DFX_STATUS14_MEM0_MSK,
 471                 .shift = HGC_RXM_DFX_STATUS14_MEM0_OFF,
 472                 .msg = "rxm_mem0_acc1b_intr found: memory address is 0x%08X\n",
 473                 .reg = HGC_RXM_DFX_STATUS14,
 474         },
 475         {
 476                 .irq_msk = BIT(SAS_ECC_INTR_NCQ_MEM1_ECC_1B_OFF),
 477                 .msk = HGC_RXM_DFX_STATUS14_MEM1_MSK,
 478                 .shift = HGC_RXM_DFX_STATUS14_MEM1_OFF,
 479                 .msg = "rxm_mem1_acc1b_intr found: memory address is 0x%08X\n",
 480                 .reg = HGC_RXM_DFX_STATUS14,
 481         },
 482         {
 483                 .irq_msk = BIT(SAS_ECC_INTR_NCQ_MEM2_ECC_1B_OFF),
 484                 .msk = HGC_RXM_DFX_STATUS14_MEM2_MSK,
 485                 .shift = HGC_RXM_DFX_STATUS14_MEM2_OFF,
 486                 .msg = "rxm_mem2_acc1b_intr found: memory address is 0x%08X\n",
 487                 .reg = HGC_RXM_DFX_STATUS14,
 488         },
 489         {
 490                 .irq_msk = BIT(SAS_ECC_INTR_NCQ_MEM3_ECC_1B_OFF),
 491                 .msk = HGC_RXM_DFX_STATUS15_MEM3_MSK,
 492                 .shift = HGC_RXM_DFX_STATUS15_MEM3_OFF,
 493                 .msg = "rxm_mem3_acc1b_intr found: memory address is 0x%08X\n",
 494                 .reg = HGC_RXM_DFX_STATUS15,
 495         },
 496 };
 497
 498 static const struct hisi_sas_hw_error multi_bit_ecc_errors[] = {
 499         {
 500                 .irq_msk = BIT(SAS_ECC_INTR_DQE_ECC_MB_OFF),
 501                 .msk = HGC_DQE_ECC_MB_ADDR_MSK,
 502                 .shift = HGC_DQE_ECC_MB_ADDR_OFF,
 503                 .msg = "hgc_dqe_accbad_intr (0x%x) found: Ram address is 0x%08X\n",
 504                 .reg = HGC_DQE_ECC_ADDR,
 505         },
 506         {
 507                 .irq_msk = BIT(SAS_ECC_INTR_IOST_ECC_MB_OFF),
 508                 .msk = HGC_IOST_ECC_MB_ADDR_MSK,
 509                 .shift = HGC_IOST_ECC_MB_ADDR_OFF,
 510                 .msg = "hgc_iost_accbad_intr (0x%x) found: Ram address is 0x%08X\n",
 511                 .reg = HGC_IOST_ECC_ADDR,
 512         },
 513         {
 514                 .irq_msk = BIT(SAS_ECC_INTR_ITCT_ECC_MB_OFF),
 515                 .msk = HGC_ITCT_ECC_MB_ADDR_MSK,
 516                 .shift = HGC_ITCT_ECC_MB_ADDR_OFF,
 517                 .msg = "hgc_itct_accbad_intr (0x%x) found: Ram address is 0x%08X\n",
 518                 .reg = HGC_ITCT_ECC_ADDR,
 519         },
 520         {
 521                 .irq_msk = BIT(SAS_ECC_INTR_IOSTLIST_ECC_MB_OFF),
 522                 .msk = HGC_LM_DFX_STATUS2_IOSTLIST_MSK,
 523                 .shift = HGC_LM_DFX_STATUS2_IOSTLIST_OFF,
 524                 .msg = "hgc_iostl_accbad_intr (0x%x) found: memory address is 0x%08X\n",
 525                 .reg = HGC_LM_DFX_STATUS2,
 526         },
 527         {
 528                 .irq_msk = BIT(SAS_ECC_INTR_ITCTLIST_ECC_MB_OFF),
 529                 .msk = HGC_LM_DFX_STATUS2_ITCTLIST_MSK,
 530                 .shift = HGC_LM_DFX_STATUS2_ITCTLIST_OFF,
 531                 .msg = "hgc_itctl_accbad_intr (0x%x) found: memory address is 0x%08X\n",
 532                 .reg = HGC_LM_DFX_STATUS2,
 533         },
 534         {
 535                 .irq_msk = BIT(SAS_ECC_INTR_CQE_ECC_MB_OFF),
 536                 .msk = HGC_CQE_ECC_MB_ADDR_MSK,
 537                 .shift = HGC_CQE_ECC_MB_ADDR_OFF,
 538                 .msg = "hgc_cqe_accbad_intr (0x%x) found: Ram address is 0x%08X\n",
 539                 .reg = HGC_CQE_ECC_ADDR,
 540         },
 541         {
 542                 .irq_msk = BIT(SAS_ECC_INTR_NCQ_MEM0_ECC_MB_OFF),
 543                 .msk = HGC_RXM_DFX_STATUS14_MEM0_MSK,
 544                 .shift = HGC_RXM_DFX_STATUS14_MEM0_OFF,
 545                 .msg = "rxm_mem0_accbad_intr (0x%x) found: memory address is 0x%08X\n",
 546                 .reg = HGC_RXM_DFX_STATUS14,
 547         },
 548         {
 549                 .irq_msk = BIT(SAS_ECC_INTR_NCQ_MEM1_ECC_MB_OFF),
 550                 .msk = HGC_RXM_DFX_STATUS14_MEM1_MSK,
 551                 .shift = HGC_RXM_DFX_STATUS14_MEM1_OFF,
 552                 .msg = "rxm_mem1_accbad_intr (0x%x) found: memory address is 0x%08X\n",
 553                 .reg = HGC_RXM_DFX_STATUS14,
 554         },
 555         {
 556                 .irq_msk = BIT(SAS_ECC_INTR_NCQ_MEM2_ECC_MB_OFF),
 557                 .msk = HGC_RXM_DFX_STATUS14_MEM2_MSK,
 558                 .shift = HGC_RXM_DFX_STATUS14_MEM2_OFF,
 559                 .msg = "rxm_mem2_accbad_intr (0x%x) found: memory address is 0x%08X\n",
 560                 .reg = HGC_RXM_DFX_STATUS14,
 561         },
 562         {
 563                 .irq_msk = BIT(SAS_ECC_INTR_NCQ_MEM3_ECC_MB_OFF),
 564                 .msk = HGC_RXM_DFX_STATUS15_MEM3_MSK,
 565                 .shift = HGC_RXM_DFX_STATUS15_MEM3_OFF,
 566                 .msg = "rxm_mem3_accbad_intr (0x%x) found: memory address is 0x%08X\n",
 567                 .reg = HGC_RXM_DFX_STATUS15,
 568         },
 569 };
 570
 571 enum {
 572         HISI_SAS_PHY_PHY_UPDOWN,
 573         HISI_SAS_PHY_CHNL_INT,
 574         HISI_SAS_PHY_INT_NR
 575 };
 576
 577 enum {
 578         TRANS_TX_FAIL_BASE = 0x0, /* dw0 */
 579         TRANS_RX_FAIL_BASE = 0x20, /* dw1 */
 580         DMA_TX_ERR_BASE = 0x40, /* dw2 bit 15-0 */
 581         SIPC_RX_ERR_BASE = 0x50, /* dw2 bit 31-16*/
 582         DMA_RX_ERR_BASE = 0x60, /* dw3 */
 583
 584         /* trans tx*/
 585         TRANS_TX_OPEN_FAIL_WITH_IT_NEXUS_LOSS = TRANS_TX_FAIL_BASE, /* 0x0 */
 586         TRANS_TX_ERR_PHY_NOT_ENABLE, /* 0x1 */
 587         TRANS_TX_OPEN_CNX_ERR_WRONG_DESTINATION, /* 0x2 */
 588         TRANS_TX_OPEN_CNX_ERR_ZONE_VIOLATION, /* 0x3 */
 589         TRANS_TX_OPEN_CNX_ERR_BY_OTHER, /* 0x4 */
 590         RESERVED0, /* 0x5 */
 591         TRANS_TX_OPEN_CNX_ERR_AIP_TIMEOUT, /* 0x6 */
 592         TRANS_TX_OPEN_CNX_ERR_STP_RESOURCES_BUSY, /* 0x7 */
 593         TRANS_TX_OPEN_CNX_ERR_PROTOCOL_NOT_SUPPORTED, /* 0x8 */
 594         TRANS_TX_OPEN_CNX_ERR_CONNECTION_RATE_NOT_SUPPORTED, /* 0x9 */
 595         TRANS_TX_OPEN_CNX_ERR_BAD_DESTINATION, /* 0xa */
 596         TRANS_TX_OPEN_CNX_ERR_BREAK_RCVD, /* 0xb */
 597         TRANS_TX_OPEN_CNX_ERR_LOW_PHY_POWER, /* 0xc */
 598         TRANS_TX_OPEN_CNX_ERR_PATHWAY_BLOCKED, /* 0xd */
 599         TRANS_TX_OPEN_CNX_ERR_OPEN_TIMEOUT, /* 0xe */
 600         TRANS_TX_OPEN_CNX_ERR_NO_DESTINATION, /* 0xf */
 601         TRANS_TX_OPEN_RETRY_ERR_THRESHOLD_REACHED, /* 0x10 */
 602         TRANS_TX_ERR_FRAME_TXED, /* 0x11 */
 603         TRANS_TX_ERR_WITH_BREAK_TIMEOUT, /* 0x12 */
 604         TRANS_TX_ERR_WITH_BREAK_REQUEST, /* 0x13 */
 605         TRANS_TX_ERR_WITH_BREAK_RECEVIED, /* 0x14 */
 606         TRANS_TX_ERR_WITH_CLOSE_TIMEOUT, /* 0x15 */
 607         TRANS_TX_ERR_WITH_CLOSE_NORMAL, /* 0x16 for ssp*/
 608         TRANS_TX_ERR_WITH_CLOSE_PHYDISALE, /* 0x17 */
 609         TRANS_TX_ERR_WITH_CLOSE_DWS_TIMEOUT, /* 0x18 */
 610         TRANS_TX_ERR_WITH_CLOSE_COMINIT, /* 0x19 */
 611         TRANS_TX_ERR_WITH_NAK_RECEVIED, /* 0x1a for ssp*/
 612         TRANS_TX_ERR_WITH_ACK_NAK_TIMEOUT, /* 0x1b for ssp*/
 613         /*IO_TX_ERR_WITH_R_ERR_RECEVIED, [> 0x1b for sata/stp<] */
 614         TRANS_TX_ERR_WITH_CREDIT_TIMEOUT, /* 0x1c for ssp */
 615         /*IO_RX_ERR_WITH_SATA_DEVICE_LOST 0x1c for sata/stp */
 616         TRANS_TX_ERR_WITH_IPTT_CONFLICT, /* 0x1d for ssp/smp */
 617         TRANS_TX_ERR_WITH_OPEN_BY_DES_OR_OTHERS, /* 0x1e */
 618         /*IO_TX_ERR_WITH_SYNC_RXD, [> 0x1e <] for sata/stp */
 619         TRANS_TX_ERR_WITH_WAIT_RECV_TIMEOUT, /* 0x1f for sata/stp */
 620
 621         /* trans rx */
 622         TRANS_RX_ERR_WITH_RXFRAME_CRC_ERR = TRANS_RX_FAIL_BASE, /* 0x20 */
 623         TRANS_RX_ERR_WITH_RXFIS_8B10B_DISP_ERR, /* 0x21 for sata/stp */
 624         TRANS_RX_ERR_WITH_RXFRAME_HAVE_ERRPRM, /* 0x22 for ssp/smp */
 625         /*IO_ERR_WITH_RXFIS_8B10B_CODE_ERR, [> 0x22 <] for sata/stp */
 626         TRANS_RX_ERR_WITH_RXFIS_DECODE_ERROR, /* 0x23 for sata/stp */
 627         TRANS_RX_ERR_WITH_RXFIS_CRC_ERR, /* 0x24 for sata/stp */
 628         TRANS_RX_ERR_WITH_RXFRAME_LENGTH_OVERRUN, /* 0x25 for smp */
 629         /*IO_ERR_WITH_RXFIS_TX SYNCP, [> 0x25 <] for sata/stp */
 630         TRANS_RX_ERR_WITH_RXFIS_RX_SYNCP, /* 0x26 for sata/stp*/
 631         TRANS_RX_ERR_WITH_LINK_BUF_OVERRUN, /* 0x27 */
 632         TRANS_RX_ERR_WITH_BREAK_TIMEOUT, /* 0x28 */
 633         TRANS_RX_ERR_WITH_BREAK_REQUEST, /* 0x29 */
 634         TRANS_RX_ERR_WITH_BREAK_RECEVIED, /* 0x2a */
 635         RESERVED1, /* 0x2b */
 636         TRANS_RX_ERR_WITH_CLOSE_NORMAL, /* 0x2c */
 637         TRANS_RX_ERR_WITH_CLOSE_PHY_DISABLE, /* 0x2d */
 638         TRANS_RX_ERR_WITH_CLOSE_DWS_TIMEOUT, /* 0x2e */
 639         TRANS_RX_ERR_WITH_CLOSE_COMINIT, /* 0x2f */
 640         TRANS_RX_ERR_WITH_DATA_LEN0, /* 0x30 for ssp/smp */
 641         TRANS_RX_ERR_WITH_BAD_HASH, /* 0x31 for ssp */
 642         /*IO_RX_ERR_WITH_FIS_TOO_SHORT, [> 0x31 <] for sata/stp */
 643         TRANS_RX_XRDY_WLEN_ZERO_ERR, /* 0x32 for ssp*/
 644         /*IO_RX_ERR_WITH_FIS_TOO_LONG, [> 0x32 <] for sata/stp */
 645         TRANS_RX_SSP_FRM_LEN_ERR, /* 0x33 for ssp */
 646         /*IO_RX_ERR_WITH_SATA_DEVICE_LOST, [> 0x33 <] for sata */
 647         RESERVED2, /* 0x34 */
 648         RESERVED3, /* 0x35 */
 649         RESERVED4, /* 0x36 */
 650         RESERVED5, /* 0x37 */
 651         TRANS_RX_ERR_WITH_BAD_FRM_TYPE, /* 0x38 */
 652         TRANS_RX_SMP_FRM_LEN_ERR, /* 0x39 */
 653         TRANS_RX_SMP_RESP_TIMEOUT_ERR, /* 0x3a */
 654         RESERVED6, /* 0x3b */
 655         RESERVED7, /* 0x3c */
 656         RESERVED8, /* 0x3d */
 657         RESERVED9, /* 0x3e */
 658         TRANS_RX_R_ERR, /* 0x3f */
 659
 660         /* dma tx */
 661         DMA_TX_DIF_CRC_ERR = DMA_TX_ERR_BASE, /* 0x40 */
 662         DMA_TX_DIF_APP_ERR, /* 0x41 */
 663         DMA_TX_DIF_RPP_ERR, /* 0x42 */
 664         DMA_TX_DATA_SGL_OVERFLOW, /* 0x43 */
 665         DMA_TX_DIF_SGL_OVERFLOW, /* 0x44 */
 666         DMA_TX_UNEXP_XFER_ERR, /* 0x45 */
 667         DMA_TX_UNEXP_RETRANS_ERR, /* 0x46 */
 668         DMA_TX_XFER_LEN_OVERFLOW, /* 0x47 */
 669         DMA_TX_XFER_OFFSET_ERR, /* 0x48 */
 670         DMA_TX_RAM_ECC_ERR, /* 0x49 */
 671         DMA_TX_DIF_LEN_ALIGN_ERR, /* 0x4a */
 672         DMA_TX_MAX_ERR_CODE,
 673
 674         /* sipc rx */
 675         SIPC_RX_FIS_STATUS_ERR_BIT_VLD = SIPC_RX_ERR_BASE, /* 0x50 */
 676         SIPC_RX_PIO_WRSETUP_STATUS_DRQ_ERR, /* 0x51 */
 677         SIPC_RX_FIS_STATUS_BSY_BIT_ERR, /* 0x52 */
 678         SIPC_RX_WRSETUP_LEN_ODD_ERR, /* 0x53 */
 679         SIPC_RX_WRSETUP_LEN_ZERO_ERR, /* 0x54 */
 680         SIPC_RX_WRDATA_LEN_NOT_MATCH_ERR, /* 0x55 */
 681         SIPC_RX_NCQ_WRSETUP_OFFSET_ERR, /* 0x56 */
 682         SIPC_RX_NCQ_WRSETUP_AUTO_ACTIVE_ERR, /* 0x57 */
 683         SIPC_RX_SATA_UNEXP_FIS_ERR, /* 0x58 */
 684         SIPC_RX_WRSETUP_ESTATUS_ERR, /* 0x59 */
 685         SIPC_RX_DATA_UNDERFLOW_ERR, /* 0x5a */
 686         SIPC_RX_MAX_ERR_CODE,
 687
 688         /* dma rx */
 689         DMA_RX_DIF_CRC_ERR = DMA_RX_ERR_BASE, /* 0x60 */
 690         DMA_RX_DIF_APP_ERR, /* 0x61 */
 691         DMA_RX_DIF_RPP_ERR, /* 0x62 */
 692         DMA_RX_DATA_SGL_OVERFLOW, /* 0x63 */
 693         DMA_RX_DIF_SGL_OVERFLOW, /* 0x64 */
 694         DMA_RX_DATA_LEN_OVERFLOW, /* 0x65 */
 695         DMA_RX_DATA_LEN_UNDERFLOW, /* 0x66 */
 696         DMA_RX_DATA_OFFSET_ERR, /* 0x67 */
 697         RESERVED10, /* 0x68 */
 698         DMA_RX_SATA_FRAME_TYPE_ERR, /* 0x69 */
 699         DMA_RX_RESP_BUF_OVERFLOW, /* 0x6a */
 700         DMA_RX_UNEXP_RETRANS_RESP_ERR, /* 0x6b */
 701         DMA_RX_UNEXP_NORM_RESP_ERR, /* 0x6c */
 702         DMA_RX_UNEXP_RDFRAME_ERR, /* 0x6d */
 703         DMA_RX_PIO_DATA_LEN_ERR, /* 0x6e */
 704         DMA_RX_RDSETUP_STATUS_ERR, /* 0x6f */
 705         DMA_RX_RDSETUP_STATUS_DRQ_ERR, /* 0x70 */
 706         DMA_RX_RDSETUP_STATUS_BSY_ERR, /* 0x71 */
 707         DMA_RX_RDSETUP_LEN_ODD_ERR, /* 0x72 */
 708         DMA_RX_RDSETUP_LEN_ZERO_ERR, /* 0x73 */
 709         DMA_RX_RDSETUP_LEN_OVER_ERR, /* 0x74 */
 710         DMA_RX_RDSETUP_OFFSET_ERR, /* 0x75 */
 711         DMA_RX_RDSETUP_ACTIVE_ERR, /* 0x76 */
 712         DMA_RX_RDSETUP_ESTATUS_ERR, /* 0x77 */
 713         DMA_RX_RAM_ECC_ERR, /* 0x78 */
 714         DMA_RX_UNKNOWN_FRM_ERR, /* 0x79 */
 715         DMA_RX_MAX_ERR_CODE,
 716 };
 717
 718 #define HISI_SAS_COMMAND_ENTRIES_V2_HW 4096
 719 #define HISI_MAX_SATA_SUPPORT_V2_HW     (HISI_SAS_COMMAND_ENTRIES_V2_HW/64 - 1)
 720
 721 #define DIR_NO_DATA 0
 722 #define DIR_TO_INI 1
 723 #define DIR_TO_DEVICE 2
 724 #define DIR_RESERVED 3
 725
 726 #define ERR_ON_TX_PHASE(err_phase) (err_phase == 0x2 || \
 727                 err_phase == 0x4 || err_phase == 0x8 ||\
 728                 err_phase == 0x6 || err_phase == 0xa)
 729 #define ERR_ON_RX_PHASE(err_phase) (err_phase == 0x10 || \
 730                 err_phase == 0x20 || err_phase == 0x40)
 731
 732 static void link_timeout_disable_link(struct timer_list *t);
 733
 734 static u32 hisi_sas_read32(struct hisi_hba *hisi_hba, u32 off)
 735 {
 736         void __iomem *regs = hisi_hba->regs + off;
 737
 738         return readl(regs);
 739 }
 740
 741 static u32 hisi_sas_read32_relaxed(struct hisi_hba *hisi_hba, u32 off)
 742 {
 743         void __iomem *regs = hisi_hba->regs + off;
 744
 745         return readl_relaxed(regs);
 746 }
 747
 748 static void hisi_sas_write32(struct hisi_hba *hisi_hba, u32 off, u32 val)
 749 {
 750         void __iomem *regs = hisi_hba->regs + off;
 751
 752         writel(val, regs);
 753 }
 754
 755 static void hisi_sas_phy_write32(struct hisi_hba *hisi_hba, int phy_no,
 756                                  u32 off, u32 val)
 757 {
 758         void __iomem *regs = hisi_hba->regs + (0x400 * phy_no) + off;
 759
 760         writel(val, regs);
 761 }
 762
 763 static u32 hisi_sas_phy_read32(struct hisi_hba *hisi_hba,
 764                                       int phy_no, u32 off)
 765 {
 766         void __iomem *regs = hisi_hba->regs + (0x400 * phy_no) + off;
 767
 768         return readl(regs);
 769 }
 770
 771 /* This function needs to be protected from pre-emption. */
 772 static int
 773 slot_index_alloc_quirk_v2_hw(struct hisi_hba *hisi_hba,
 774                              struct domain_device *device)
 775 {
 776         int sata_dev = dev_is_sata(device);
 777         void *bitmap = hisi_hba->slot_index_tags;
 778         struct hisi_sas_device *sas_dev = device->lldd_dev;
 779         int sata_idx = sas_dev->sata_idx;
 780         int start, end;
 781         unsigned long flags;
 782
 783         if (!sata_dev) {
 784                 /*
 785                  * STP link SoC bug workaround: index starts from 1.
 786                  * additionally, we can only allocate odd IPTT(1~4095)
 787                  * for SAS/SMP device.
 788                  */
 789                 start = 1;
 790                 end = hisi_hba->slot_index_count;
 791         } else {
 792                 if (sata_idx >= HISI_MAX_SATA_SUPPORT_V2_HW)
 793                         return -EINVAL;
 794
 795                 /*
 796                  * For SATA device: allocate even IPTT in this interval
 797                  * [64*(sata_idx+1), 64*(sata_idx+2)], then each SATA device
 798                  * own 32 IPTTs. IPTT 0 shall not be used duing to STP link
 799                  * SoC bug workaround. So we ignore the first 32 even IPTTs.
 800                  */
 801                 start = 64 * (sata_idx + 1);
 802                 end = 64 * (sata_idx + 2);
 803         }
 804
 805         spin_lock_irqsave(&hisi_hba->lock, flags);
 806         while (1) {
 807                 start = find_next_zero_bit(bitmap,
 808                                         hisi_hba->slot_index_count, start);
 809                 if (start >= end) {
 810                         spin_unlock_irqrestore(&hisi_hba->lock, flags);
 811                         return -SAS_QUEUE_FULL;
 812                 }
 813                 /*
 814                   * SAS IPTT bit0 should be 1, and SATA IPTT bit0 should be 0.
 815                   */
 816                 if (sata_dev ^ (start & 1))
 817                         break;
 818                 start++;
 819         }
 820
 821         set_bit(start, bitmap);
 822         spin_unlock_irqrestore(&hisi_hba->lock, flags);
 823         return start;
 824 }
 825
 826 static bool sata_index_alloc_v2_hw(struct hisi_hba *hisi_hba, int *idx)
 827 {
 828         unsigned int index;
 829         struct device *dev = hisi_hba->dev;
 830         void *bitmap = hisi_hba->sata_dev_bitmap;
 831
 832         index = find_first_zero_bit(bitmap, HISI_MAX_SATA_SUPPORT_V2_HW);
 833         if (index >= HISI_MAX_SATA_SUPPORT_V2_HW) {
 834                 dev_warn(dev, "alloc sata index failed, index=%d\n", index);
 835                 return false;
 836         }
 837
 838         set_bit(index, bitmap);
 839         *idx = index;
 840         return true;
 841 }
 842
 843
 844 static struct
 845 hisi_sas_device *alloc_dev_quirk_v2_hw(struct domain_device *device)
 846 {
 847         struct hisi_hba *hisi_hba = device->port->ha->lldd_ha;
 848         struct hisi_sas_device *sas_dev = NULL;
 849         int i, sata_dev = dev_is_sata(device);
 850         int sata_idx = -1;
 851         unsigned long flags;
 852
 853         spin_lock_irqsave(&hisi_hba->lock, flags);
 854
 855         if (sata_dev)
 856                 if (!sata_index_alloc_v2_hw(hisi_hba, &sata_idx))
 857                         goto out;
 858
 859         for (i = 0; i < HISI_SAS_MAX_DEVICES; i++) {
 860                 /*
 861                  * SATA device id bit0 should be 0
 862                  */
 863                 if (sata_dev && (i & 1))
 864                         continue;
 865                 if (hisi_hba->devices[i].dev_type == SAS_PHY_UNUSED) {
 866                         int queue = i % hisi_hba->queue_count;
 867                         struct hisi_sas_dq *dq = &hisi_hba->dq[queue];
 868
 869                         hisi_hba->devices[i].device_id = i;
 870                         sas_dev = &hisi_hba->devices[i];
 871                         sas_dev->dev_status = HISI_SAS_DEV_NORMAL;
 872                         sas_dev->dev_type = device->dev_type;
 873                         sas_dev->hisi_hba = hisi_hba;
 874                         sas_dev->sas_device = device;
 875                         sas_dev->sata_idx = sata_idx;
 876                         sas_dev->dq = dq;
 877                         INIT_LIST_HEAD(&hisi_hba->devices[i].list);
 878                         break;
 879                 }
 880         }
 881
 882 out:
 883         spin_unlock_irqrestore(&hisi_hba->lock, flags);
 884
 885         return sas_dev;
 886 }
 887
 888 static void config_phy_opt_mode_v2_hw(struct hisi_hba *hisi_hba, int phy_no)
 889 {
 890         u32 cfg = hisi_sas_phy_read32(hisi_hba, phy_no, PHY_CFG);
 891
 892         cfg &= ~PHY_CFG_DC_OPT_MSK;
 893         cfg |= 1 << PHY_CFG_DC_OPT_OFF;
 894         hisi_sas_phy_write32(hisi_hba, phy_no, PHY_CFG, cfg);
 895 }
 896
 897 static void config_id_frame_v2_hw(struct hisi_hba *hisi_hba, int phy_no)
 898 {
 899         struct sas_identify_frame identify_frame;
 900         u32 *identify_buffer;
 901
 902         memset(&identify_frame, 0, sizeof(identify_frame));
 903         identify_frame.dev_type = SAS_END_DEVICE;
 904         identify_frame.frame_type = 0;
 905         identify_frame._un1 = 1;
 906         identify_frame.initiator_bits = SAS_PROTOCOL_ALL;
 907         identify_frame.target_bits = SAS_PROTOCOL_NONE;
 908         memcpy(&identify_frame._un4_11[0], hisi_hba->sas_addr, SAS_ADDR_SIZE);
 909         memcpy(&identify_frame.sas_addr[0], hisi_hba->sas_addr, SAS_ADDR_SIZE);
 910         identify_frame.phy_id = phy_no;
 911         identify_buffer = (u32 *)(&identify_frame);
 912
 913         hisi_sas_phy_write32(hisi_hba, phy_no, TX_ID_DWORD0,
 914                         __swab32(identify_buffer[0]));
 915         hisi_sas_phy_write32(hisi_hba, phy_no, TX_ID_DWORD1,
 916                         __swab32(identify_buffer[1]));
 917         hisi_sas_phy_write32(hisi_hba, phy_no, TX_ID_DWORD2,
 918                         __swab32(identify_buffer[2]));
 919         hisi_sas_phy_write32(hisi_hba, phy_no, TX_ID_DWORD3,
 920                         __swab32(identify_buffer[3]));
 921         hisi_sas_phy_write32(hisi_hba, phy_no, TX_ID_DWORD4,
 922                         __swab32(identify_buffer[4]));
 923         hisi_sas_phy_write32(hisi_hba, phy_no, TX_ID_DWORD5,
 924                         __swab32(identify_buffer[5]));
 925 }
 926
 927 static void setup_itct_v2_hw(struct hisi_hba *hisi_hba,
 928                              struct hisi_sas_device *sas_dev)
 929 {
 930         struct domain_device *device = sas_dev->sas_device;
 931         struct device *dev = hisi_hba->dev;
 932         u64 qw0, device_id = sas_dev->device_id;
 933         struct hisi_sas_itct *itct = &hisi_hba->itct[device_id];
 934         struct domain_device *parent_dev = device->parent;
 935         struct asd_sas_port *sas_port = device->port;
 936         struct hisi_sas_port *port = to_hisi_sas_port(sas_port);
 937
 938         memset(itct, 0, sizeof(*itct));
 939
 940         /* qw0 */
 941         qw0 = 0;
 942         switch (sas_dev->dev_type) {
 943         case SAS_END_DEVICE:
 944         case SAS_EDGE_EXPANDER_DEVICE:
 945         case SAS_FANOUT_EXPANDER_DEVICE:
 946                 qw0 = HISI_SAS_DEV_TYPE_SSP << ITCT_HDR_DEV_TYPE_OFF;
 947                 break;
 948         case SAS_SATA_DEV:
 949         case SAS_SATA_PENDING:
 950                 if (parent_dev && DEV_IS_EXPANDER(parent_dev->dev_type))
 951                         qw0 = HISI_SAS_DEV_TYPE_STP << ITCT_HDR_DEV_TYPE_OFF;
 952                 else
 953                         qw0 = HISI_SAS_DEV_TYPE_SATA << ITCT_HDR_DEV_TYPE_OFF;
 954                 break;
 955         default:
 956                 dev_warn(dev, "setup itct: unsupported dev type (%d)\n",
 957                          sas_dev->dev_type);
 958         }
 959
 960         qw0 |= ((1 << ITCT_HDR_VALID_OFF) |
 961                 (device->linkrate << ITCT_HDR_MCR_OFF) |
 962                 (1 << ITCT_HDR_VLN_OFF) |
 963                 (ITCT_HDR_SMP_TIMEOUT << ITCT_HDR_SMP_TIMEOUT_OFF) |
 964                 (1 << ITCT_HDR_AWT_CONTINUE_OFF) |
 965                 (port->id << ITCT_HDR_PORT_ID_OFF));
 966         itct->qw0 = cpu_to_le64(qw0);
 967
 968         /* qw1 */
 969         memcpy(&itct->sas_addr, device->sas_addr, SAS_ADDR_SIZE);
 970         itct->sas_addr = __swab64(itct->sas_addr);
 971
 972         /* qw2 */
 973         if (!dev_is_sata(device))
 974                 itct->qw2 = cpu_to_le64((5000ULL << ITCT_HDR_INLT_OFF) |
 975                                         (0x1ULL << ITCT_HDR_BITLT_OFF) |
 976                                         (0x32ULL << ITCT_HDR_MCTLT_OFF) |
 977                                         (0x1ULL << ITCT_HDR_RTOLT_OFF));
 978 }
 979
 980 static void clear_itct_v2_hw(struct hisi_hba *hisi_hba,
 981                               struct hisi_sas_device *sas_dev)
 982 {
 983         DECLARE_COMPLETION_ONSTACK(completion);
 984         u64 dev_id = sas_dev->device_id;
 985         struct hisi_sas_itct *itct = &hisi_hba->itct[dev_id];
 986         u32 reg_val = hisi_sas_read32(hisi_hba, ENT_INT_SRC3);
 987         int i;
 988
 989         sas_dev->completion = &completion;
 990
 991         /* clear the itct interrupt state */
 992         if (ENT_INT_SRC3_ITC_INT_MSK & reg_val)
 993                 hisi_sas_write32(hisi_hba, ENT_INT_SRC3,
 994                                  ENT_INT_SRC3_ITC_INT_MSK);
 995
 996         for (i = 0; i < 2; i++) {
 997                 reg_val = ITCT_CLR_EN_MSK | (dev_id & ITCT_DEV_MSK);
 998                 hisi_sas_write32(hisi_hba, ITCT_CLR, reg_val);
 999                 wait_for_completion(sas_dev->completion);
1000
1001                 memset(itct, 0, sizeof(struct hisi_sas_itct));
1002         }
1003 }
1004
1005 static void free_device_v2_hw(struct hisi_sas_device *sas_dev)
1006 {
1007         struct hisi_hba *hisi_hba = sas_dev->hisi_hba;
1008
1009         /* SoC bug workaround */
1010         if (dev_is_sata(sas_dev->sas_device))
1011                 clear_bit(sas_dev->sata_idx, hisi_hba->sata_dev_bitmap);
1012 }
1013
1014 static int reset_hw_v2_hw(struct hisi_hba *hisi_hba)
1015 {
1016         int i, reset_val;
1017         u32 val;
1018         unsigned long end_time;
1019         struct device *dev = hisi_hba->dev;
1020
1021         /* The mask needs to be set depending on the number of phys */
1022         if (hisi_hba->n_phy == 9)
1023                 reset_val = 0x1fffff;
1024         else
1025                 reset_val = 0x7ffff;
1026
1027         hisi_sas_write32(hisi_hba, DLVRY_QUEUE_ENABLE, 0);
1028
1029         /* Disable all of the PHYs */
1030         for (i = 0; i < hisi_hba->n_phy; i++) {
1031                 u32 phy_cfg = hisi_sas_phy_read32(hisi_hba, i, PHY_CFG);
1032
1033                 phy_cfg &= ~PHY_CTRL_RESET_MSK;
1034                 hisi_sas_phy_write32(hisi_hba, i, PHY_CFG, phy_cfg);
1035         }
1036         udelay(50);
1037
1038         /* Ensure DMA tx & rx idle */
1039         for (i = 0; i < hisi_hba->n_phy; i++) {
1040                 u32 dma_tx_status, dma_rx_status;
1041
1042                 end_time = jiffies + msecs_to_jiffies(1000);
1043
1044                 while (1) {
1045                         dma_tx_status = hisi_sas_phy_read32(hisi_hba, i,
1046                                                             DMA_TX_STATUS);
1047                         dma_rx_status = hisi_sas_phy_read32(hisi_hba, i,
1048                                                             DMA_RX_STATUS);
1049
1050                         if (!(dma_tx_status & DMA_TX_STATUS_BUSY_MSK) &&
1051                                 !(dma_rx_status & DMA_RX_STATUS_BUSY_MSK))
1052                                 break;
1053
1054                         msleep(20);
1055                         if (time_after(jiffies, end_time))
1056                                 return -EIO;
1057                 }
1058         }
1059
1060         /* Ensure axi bus idle */
1061         end_time = jiffies + msecs_to_jiffies(1000);
1062         while (1) {
1063                 u32 axi_status =
1064                         hisi_sas_read32(hisi_hba, AXI_CFG);
1065
1066                 if (axi_status == 0)
1067                         break;
1068
1069                 msleep(20);
1070                 if (time_after(jiffies, end_time))
1071                         return -EIO;
1072         }
1073
1074         if (ACPI_HANDLE(dev)) {
1075                 acpi_status s;
1076
1077                 s = acpi_evaluate_object(ACPI_HANDLE(dev), "_RST", NULL, NULL);
1078                 if (ACPI_FAILURE(s)) {
1079                         dev_err(dev, "Reset failed\n");
1080                         return -EIO;
1081                 }
1082         } else if (hisi_hba->ctrl) {
1083                 /* reset and disable clock*/
1084                 regmap_write(hisi_hba->ctrl, hisi_hba->ctrl_reset_reg,
1085                                 reset_val);
1086                 regmap_write(hisi_hba->ctrl, hisi_hba->ctrl_clock_ena_reg + 4,
1087                                 reset_val);
1088                 msleep(1);
1089                 regmap_read(hisi_hba->ctrl, hisi_hba->ctrl_reset_sts_reg, &val);
1090                 if (reset_val != (val & reset_val)) {
1091                         dev_err(dev, "SAS reset fail.\n");
1092                         return -EIO;
1093                 }
1094
1095                 /* De-reset and enable clock*/
1096                 regmap_write(hisi_hba->ctrl, hisi_hba->ctrl_reset_reg + 4,
1097                                 reset_val);
1098                 regmap_write(hisi_hba->ctrl, hisi_hba->ctrl_clock_ena_reg,
1099                                 reset_val);
1100                 msleep(1);
1101                 regmap_read(hisi_hba->ctrl, hisi_hba->ctrl_reset_sts_reg,
1102                                 &val);
1103                 if (val & reset_val) {
1104                         dev_err(dev, "SAS de-reset fail.\n");
1105                         return -EIO;
1106                 }
1107         } else {
1108                 dev_err(dev, "no reset method\n");
1109                 return -EINVAL;
1110         }
1111
1112         return 0;
1113 }
1114
1115 /* This function needs to be called after resetting SAS controller. */
1116 static void phys_reject_stp_links_v2_hw(struct hisi_hba *hisi_hba)
1117 {
1118         u32 cfg;
1119         int phy_no;
1120
1121         hisi_hba->reject_stp_links_msk = (1 << hisi_hba->n_phy) - 1;
1122         for (phy_no = 0; phy_no < hisi_hba->n_phy; phy_no++) {
1123                 cfg = hisi_sas_phy_read32(hisi_hba, phy_no, CON_CONTROL);
1124                 if (!(cfg & CON_CONTROL_CFG_OPEN_ACC_STP_MSK))
1125                         continue;
1126
1127                 cfg &= ~CON_CONTROL_CFG_OPEN_ACC_STP_MSK;
1128                 hisi_sas_phy_write32(hisi_hba, phy_no, CON_CONTROL, cfg);
1129         }
1130 }
1131
1132 static void phys_try_accept_stp_links_v2_hw(struct hisi_hba *hisi_hba)
1133 {
1134         int phy_no;
1135         u32 dma_tx_dfx1;
1136
1137         for (phy_no = 0; phy_no < hisi_hba->n_phy; phy_no++) {
1138                 if (!(hisi_hba->reject_stp_links_msk & BIT(phy_no)))
1139                         continue;
1140
1141                 dma_tx_dfx1 = hisi_sas_phy_read32(hisi_hba, phy_no,
1142                                                 DMA_TX_DFX1);
1143                 if (dma_tx_dfx1 & DMA_TX_DFX1_IPTT_MSK) {
1144                         u32 cfg = hisi_sas_phy_read32(hisi_hba,
1145                                 phy_no, CON_CONTROL);
1146
1147                         cfg |= CON_CONTROL_CFG_OPEN_ACC_STP_MSK;
1148                         hisi_sas_phy_write32(hisi_hba, phy_no,
1149                                 CON_CONTROL, cfg);
1150                         clear_bit(phy_no, &hisi_hba->reject_stp_links_msk);
1151                 }
1152         }
1153 }
1154
1155 static const struct signal_attenuation_s x6000 = {9200, 0, 10476};
1156 static const struct sig_atten_lu_s sig_atten_lu[] = {
1157         { &x6000, 0x3016a68 },
1158 };
1159
1160 static void init_reg_v2_hw(struct hisi_hba *hisi_hba)
1161 {
1162         struct device *dev = hisi_hba->dev;
1163         u32 sas_phy_ctrl = 0x30b9908;
1164         u32 signal[3];
1165         int i;
1166
1167         /* Global registers init */
1168
1169         /* Deal with am-max-transmissions quirk */
1170         if (device_property_present(dev, "hip06-sas-v2-quirk-amt")) {
1171                 hisi_sas_write32(hisi_hba, AM_CFG_MAX_TRANS, 0x2020);
1172                 hisi_sas_write32(hisi_hba, AM_CFG_SINGLE_PORT_MAX_TRANS,
1173                                  0x2020);
1174         } /* Else, use defaults -> do nothing */
1175
1176         hisi_sas_write32(hisi_hba, DLVRY_QUEUE_ENABLE,
1177                          (u32)((1ULL << hisi_hba->queue_count) - 1));
1178         hisi_sas_write32(hisi_hba, AXI_USER1, 0xc0000000);
1179         hisi_sas_write32(hisi_hba, AXI_USER2, 0x10000);
1180         hisi_sas_write32(hisi_hba, HGC_SAS_TXFAIL_RETRY_CTRL, 0x0);
1181         hisi_sas_write32(hisi_hba, HGC_SAS_TX_OPEN_FAIL_RETRY_CTRL, 0x7FF);
1182         hisi_sas_write32(hisi_hba, OPENA_WT_CONTI_TIME, 0x1);
1183         hisi_sas_write32(hisi_hba, I_T_NEXUS_LOSS_TIME, 0x1F4);
1184         hisi_sas_write32(hisi_hba, MAX_CON_TIME_LIMIT_TIME, 0x32);
1185         hisi_sas_write32(hisi_hba, BUS_INACTIVE_LIMIT_TIME, 0x1);
1186         hisi_sas_write32(hisi_hba, CFG_AGING_TIME, 0x1);
1187         hisi_sas_write32(hisi_hba, HGC_ERR_STAT_EN, 0x1);
1188         hisi_sas_write32(hisi_hba, HGC_GET_ITV_TIME, 0x1);
1189         hisi_sas_write32(hisi_hba, INT_COAL_EN, 0xc);
1190         hisi_sas_write32(hisi_hba, OQ_INT_COAL_TIME, 0x60);
1191         hisi_sas_write32(hisi_hba, OQ_INT_COAL_CNT, 0x3);
1192         hisi_sas_write32(hisi_hba, ENT_INT_COAL_TIME, 0x1);
1193         hisi_sas_write32(hisi_hba, ENT_INT_COAL_CNT, 0x1);
1194         hisi_sas_write32(hisi_hba, OQ_INT_SRC, 0x0);
1195         hisi_sas_write32(hisi_hba, ENT_INT_SRC1, 0xffffffff);
1196         hisi_sas_write32(hisi_hba, ENT_INT_SRC2, 0xffffffff);
1197         hisi_sas_write32(hisi_hba, ENT_INT_SRC3, 0xffffffff);
1198         hisi_sas_write32(hisi_hba, ENT_INT_SRC_MSK1, 0x7efefefe);
1199         hisi_sas_write32(hisi_hba, ENT_INT_SRC_MSK2, 0x7efefefe);
1200         hisi_sas_write32(hisi_hba, ENT_INT_SRC_MSK3, 0x7ffe20fe);
1201         hisi_sas_write32(hisi_hba, SAS_ECC_INTR_MSK, 0xfff00c30);
1202         for (i = 0; i < hisi_hba->queue_count; i++)
1203                 hisi_sas_write32(hisi_hba, OQ0_INT_SRC_MSK+0x4*i, 0);
1204
1205         hisi_sas_write32(hisi_hba, AXI_AHB_CLK_CFG, 1);
1206         hisi_sas_write32(hisi_hba, HYPER_STREAM_ID_EN_CFG, 1);
1207
1208         /* Get sas_phy_ctrl value to deal with TX FFE issue. */
1209         if (!device_property_read_u32_array(dev, "hisilicon,signal-attenuation",
1210                                             signal, ARRAY_SIZE(signal))) {
1211                 for (i = 0; i < ARRAY_SIZE(sig_atten_lu); i++) {
1212                         const struct sig_atten_lu_s *lookup = &sig_atten_lu[i];
1213                         const struct signal_attenuation_s *att = lookup->att;
1214
1215                         if ((signal[0] == att->de_emphasis) &&
1216                             (signal[1] == att->preshoot) &&
1217                             (signal[2] == att->boost)) {
1218                                 sas_phy_ctrl = lookup->sas_phy_ctrl;
1219                                 break;
1220                         }
1221                 }
1222
1223                 if (i == ARRAY_SIZE(sig_atten_lu))
1224                         dev_warn(dev, "unknown signal attenuation values, using default PHY ctrl config\n");
1225         }
1226
1227         for (i = 0; i < hisi_hba->n_phy; i++) {
1228                 struct hisi_sas_phy *phy = &hisi_hba->phy[i];
1229                 struct asd_sas_phy *sas_phy = &phy->sas_phy;
1230                 u32 prog_phy_link_rate = 0x800;
1231
1232                 if (!sas_phy->phy || (sas_phy->phy->maximum_linkrate <
1233                                 SAS_LINK_RATE_1_5_GBPS)) {
1234                         prog_phy_link_rate = 0x855;
1235                 } else {
1236                         enum sas_linkrate max = sas_phy->phy->maximum_linkrate;
1237
1238                         prog_phy_link_rate =
1239                                 hisi_sas_get_prog_phy_linkrate_mask(max) |
1240                                 0x800;
1241                 }
1242                 hisi_sas_phy_write32(hisi_hba, i, PROG_PHY_LINK_RATE,
1243                         prog_phy_link_rate);
1244                 hisi_sas_phy_write32(hisi_hba, i, SAS_PHY_CTRL, sas_phy_ctrl);
1245                 hisi_sas_phy_write32(hisi_hba, i, SL_TOUT_CFG, 0x7d7d7d7d);
1246                 hisi_sas_phy_write32(hisi_hba, i, SL_CONTROL, 0x0);
1247                 hisi_sas_phy_write32(hisi_hba, i, TXID_AUTO, 0x2);
1248                 hisi_sas_phy_write32(hisi_hba, i, DONE_RECEIVED_TIME, 0x8);
1249                 hisi_sas_phy_write32(hisi_hba, i, CHL_INT0, 0xffffffff);
1250                 hisi_sas_phy_write32(hisi_hba, i, CHL_INT1, 0xffffffff);
1251                 hisi_sas_phy_write32(hisi_hba, i, CHL_INT2, 0xfff87fff);
1252                 hisi_sas_phy_write32(hisi_hba, i, RXOP_CHECK_CFG_H, 0x1000);
1253                 hisi_sas_phy_write32(hisi_hba, i, CHL_INT1_MSK, 0xff857fff);
1254                 hisi_sas_phy_write32(hisi_hba, i, CHL_INT2_MSK, 0x8ffffbfe);
1255                 hisi_sas_phy_write32(hisi_hba, i, SL_CFG, 0x13f801fc);
1256                 hisi_sas_phy_write32(hisi_hba, i, PHY_CTRL_RDY_MSK, 0x0);
1257                 hisi_sas_phy_write32(hisi_hba, i, PHYCTRL_NOT_RDY_MSK, 0x0);
1258                 hisi_sas_phy_write32(hisi_hba, i, PHYCTRL_DWS_RESET_MSK, 0x0);
1259                 hisi_sas_phy_write32(hisi_hba, i, PHYCTRL_PHY_ENA_MSK, 0x0);
1260                 hisi_sas_phy_write32(hisi_hba, i, SL_RX_BCAST_CHK_MSK, 0x0);
1261                 hisi_sas_phy_write32(hisi_hba, i, CHL_INT_COAL_EN, 0x0);
1262                 hisi_sas_phy_write32(hisi_hba, i, PHYCTRL_OOB_RESTART_MSK, 0x0);
1263                 if (hisi_hba->refclk_frequency_mhz == 66)
1264                         hisi_sas_phy_write32(hisi_hba, i, PHY_CTRL, 0x199B694);
1265                 /* else, do nothing -> leave it how you found it */
1266         }
1267
1268         for (i = 0; i < hisi_hba->queue_count; i++) {
1269                 /* Delivery queue */
1270                 hisi_sas_write32(hisi_hba,
1271                                  DLVRY_Q_0_BASE_ADDR_HI + (i * 0x14),
1272                                  upper_32_bits(hisi_hba->cmd_hdr_dma[i]));
1273
1274                 hisi_sas_write32(hisi_hba, DLVRY_Q_0_BASE_ADDR_LO + (i * 0x14),
1275                                  lower_32_bits(hisi_hba->cmd_hdr_dma[i]));
1276
1277                 hisi_sas_write32(hisi_hba, DLVRY_Q_0_DEPTH + (i * 0x14),
1278                                  HISI_SAS_QUEUE_SLOTS);
1279
1280                 /* Completion queue */
1281                 hisi_sas_write32(hisi_hba, COMPL_Q_0_BASE_ADDR_HI + (i * 0x14),
1282                                  upper_32_bits(hisi_hba->complete_hdr_dma[i]));
1283
1284                 hisi_sas_write32(hisi_hba, COMPL_Q_0_BASE_ADDR_LO + (i * 0x14),
1285                                  lower_32_bits(hisi_hba->complete_hdr_dma[i]));
1286
1287                 hisi_sas_write32(hisi_hba, COMPL_Q_0_DEPTH + (i * 0x14),
1288                                  HISI_SAS_QUEUE_SLOTS);
1289         }
1290
1291         /* itct */
1292         hisi_sas_write32(hisi_hba, ITCT_BASE_ADDR_LO,
1293                          lower_32_bits(hisi_hba->itct_dma));
1294
1295         hisi_sas_write32(hisi_hba, ITCT_BASE_ADDR_HI,
1296                          upper_32_bits(hisi_hba->itct_dma));
1297
1298         /* iost */
1299         hisi_sas_write32(hisi_hba, IOST_BASE_ADDR_LO,
1300                          lower_32_bits(hisi_hba->iost_dma));
1301
1302         hisi_sas_write32(hisi_hba, IOST_BASE_ADDR_HI,
1303                          upper_32_bits(hisi_hba->iost_dma));
1304
1305         /* breakpoint */
1306         hisi_sas_write32(hisi_hba, IO_BROKEN_MSG_ADDR_LO,
1307                          lower_32_bits(hisi_hba->breakpoint_dma));
1308
1309         hisi_sas_write32(hisi_hba, IO_BROKEN_MSG_ADDR_HI,
1310                          upper_32_bits(hisi_hba->breakpoint_dma));
1311
1312         /* SATA broken msg */
1313         hisi_sas_write32(hisi_hba, IO_SATA_BROKEN_MSG_ADDR_LO,
1314                          lower_32_bits(hisi_hba->sata_breakpoint_dma));
1315
1316         hisi_sas_write32(hisi_hba, IO_SATA_BROKEN_MSG_ADDR_HI,
1317                          upper_32_bits(hisi_hba->sata_breakpoint_dma));
1318
1319         /* SATA initial fis */
1320         hisi_sas_write32(hisi_hba, SATA_INITI_D2H_STORE_ADDR_LO,
1321                          lower_32_bits(hisi_hba->initial_fis_dma));
1322
1323         hisi_sas_write32(hisi_hba, SATA_INITI_D2H_STORE_ADDR_HI,
1324                          upper_32_bits(hisi_hba->initial_fis_dma));
1325 }
1326
1327 static void link_timeout_enable_link(struct timer_list *t)
1328 {
1329         struct hisi_hba *hisi_hba = from_timer(hisi_hba, t, timer);
1330         int i, reg_val;
1331
1332         for (i = 0; i < hisi_hba->n_phy; i++) {
1333                 if (hisi_hba->reject_stp_links_msk & BIT(i))
1334                         continue;
1335
1336                 reg_val = hisi_sas_phy_read32(hisi_hba, i, CON_CONTROL);
1337                 if (!(reg_val & BIT(0))) {
1338                         hisi_sas_phy_write32(hisi_hba, i,
1339                                         CON_CONTROL, 0x7);
1340                         break;
1341                 }
1342         }
1343
1344         hisi_hba->timer.function = link_timeout_disable_link;
1345         mod_timer(&hisi_hba->timer, jiffies + msecs_to_jiffies(900));
1346 }
1347
1348 static void link_timeout_disable_link(struct timer_list *t)
1349 {
1350         struct hisi_hba *hisi_hba = from_timer(hisi_hba, t, timer);
1351         int i, reg_val;
1352
1353         reg_val = hisi_sas_read32(hisi_hba, PHY_STATE);
1354         for (i = 0; i < hisi_hba->n_phy && reg_val; i++) {
1355                 if (hisi_hba->reject_stp_links_msk & BIT(i))
1356                         continue;
1357
1358                 if (reg_val & BIT(i)) {
1359                         hisi_sas_phy_write32(hisi_hba, i,
1360                                         CON_CONTROL, 0x6);
1361                         break;
1362                 }
1363         }
1364
1365         hisi_hba->timer.function = link_timeout_enable_link;
1366         mod_timer(&hisi_hba->timer, jiffies + msecs_to_jiffies(100));
1367 }
1368
1369 static void set_link_timer_quirk(struct hisi_hba *hisi_hba)
1370 {
1371         hisi_hba->timer.function = link_timeout_disable_link;
1372         hisi_hba->timer.expires = jiffies + msecs_to_jiffies(1000);
1373         add_timer(&hisi_hba->timer);
1374 }
1375
1376 static int hw_init_v2_hw(struct hisi_hba *hisi_hba)
1377 {
1378         struct device *dev = hisi_hba->dev;
1379         int rc;
1380
1381         rc = reset_hw_v2_hw(hisi_hba);
1382         if (rc) {
1383                 dev_err(dev, "hisi_sas_reset_hw failed, rc=%d", rc);
1384                 return rc;
1385         }
1386
1387         msleep(100);
1388         init_reg_v2_hw(hisi_hba);
1389
1390         return 0;
1391 }
1392
1393 static void enable_phy_v2_hw(struct hisi_hba *hisi_hba, int phy_no)
1394 {
1395         u32 cfg = hisi_sas_phy_read32(hisi_hba, phy_no, PHY_CFG);
1396
1397         cfg |= PHY_CFG_ENA_MSK;
1398         hisi_sas_phy_write32(hisi_hba, phy_no, PHY_CFG, cfg);
1399 }
1400
1401 static bool is_sata_phy_v2_hw(struct hisi_hba *hisi_hba, int phy_no)
1402 {
1403         u32 context;
1404
1405         context = hisi_sas_read32(hisi_hba, PHY_CONTEXT);
1406         if (context & (1 << phy_no))
1407                 return true;
1408
1409         return false;
1410 }
1411
1412 static bool tx_fifo_is_empty_v2_hw(struct hisi_hba *hisi_hba, int phy_no)
1413 {
1414         u32 dfx_val;
1415
1416         dfx_val = hisi_sas_phy_read32(hisi_hba, phy_no, DMA_TX_DFX1);
1417
1418         if (dfx_val & BIT(16))
1419                 return false;
1420
1421         return true;
1422 }
1423
1424 static bool axi_bus_is_idle_v2_hw(struct hisi_hba *hisi_hba, int phy_no)
1425 {
1426         int i, max_loop = 1000;
1427         struct device *dev = hisi_hba->dev;
1428         u32 status, axi_status, dfx_val, dfx_tx_val;
1429
1430         for (i = 0; i < max_loop; i++) {
1431                 status = hisi_sas_read32_relaxed(hisi_hba,
1432                         AXI_MASTER_CFG_BASE + AM_CURR_TRANS_RETURN);
1433
1434                 axi_status = hisi_sas_read32(hisi_hba, AXI_CFG);
1435                 dfx_val = hisi_sas_phy_read32(hisi_hba, phy_no, DMA_TX_DFX1);
1436                 dfx_tx_val = hisi_sas_phy_read32(hisi_hba,
1437                         phy_no, DMA_TX_FIFO_DFX0);
1438
1439                 if ((status == 0x3) && (axi_status == 0x0) &&
1440                     (dfx_val & BIT(20)) && (dfx_tx_val & BIT(10)))
1441                         return true;
1442                 udelay(10);
1443         }
1444         dev_err(dev, "bus is not idle phy%d, axi150:0x%x axi100:0x%x port204:0x%x port240:0x%x\n",
1445                         phy_no, status, axi_status,
1446                         dfx_val, dfx_tx_val);
1447         return false;
1448 }
1449
1450 static bool wait_io_done_v2_hw(struct hisi_hba *hisi_hba, int phy_no)
1451 {
1452         int i, max_loop = 1000;
1453         struct device *dev = hisi_hba->dev;
1454         u32 status, tx_dfx0;
1455
1456         for (i = 0; i < max_loop; i++) {
1457                 status = hisi_sas_phy_read32(hisi_hba, phy_no, LINK_DFX2);
1458                 status = (status & 0x3fc0) >> 6;
1459
1460                 if (status != 0x1)
1461                         return true;
1462
1463                 tx_dfx0 = hisi_sas_phy_read32(hisi_hba, phy_no, DMA_TX_DFX0);
1464                 if ((tx_dfx0 & 0x1ff) == 0x2)
1465                         return true;
1466                 udelay(10);
1467         }
1468         dev_err(dev, "IO not done phy%d, port264:0x%x port200:0x%x\n",
1469                         phy_no, status, tx_dfx0);
1470         return false;
1471 }
1472
1473 static bool allowed_disable_phy_v2_hw(struct hisi_hba *hisi_hba, int phy_no)
1474 {
1475         if (tx_fifo_is_empty_v2_hw(hisi_hba, phy_no))
1476                 return true;
1477
1478         if (!axi_bus_is_idle_v2_hw(hisi_hba, phy_no))
1479                 return false;
1480
1481         if (!wait_io_done_v2_hw(hisi_hba, phy_no))
1482                 return false;
1483
1484         return true;
1485 }
1486
1487
1488 static void disable_phy_v2_hw(struct hisi_hba *hisi_hba, int phy_no)
1489 {
1490         u32 cfg, axi_val, dfx0_val, txid_auto;
1491         struct device *dev = hisi_hba->dev;
1492
1493         /* Close axi bus. */
1494         axi_val = hisi_sas_read32(hisi_hba, AXI_MASTER_CFG_BASE +
1495                                 AM_CTRL_GLOBAL);
1496         axi_val |= 0x1;
1497         hisi_sas_write32(hisi_hba, AXI_MASTER_CFG_BASE +
1498                 AM_CTRL_GLOBAL, axi_val);
1499
1500         if (is_sata_phy_v2_hw(hisi_hba, phy_no)) {
1501                 if (allowed_disable_phy_v2_hw(hisi_hba, phy_no))
1502                         goto do_disable;
1503
1504                 /* Reset host controller. */
1505                 queue_work(hisi_hba->wq, &hisi_hba->rst_work);
1506                 return;
1507         }
1508
1509         dfx0_val = hisi_sas_phy_read32(hisi_hba, phy_no, PORT_DFX0);
1510         dfx0_val = (dfx0_val & 0x1fc0) >> 6;
1511         if (dfx0_val != 0x4)
1512                 goto do_disable;
1513
1514         if (!tx_fifo_is_empty_v2_hw(hisi_hba, phy_no)) {
1515                 dev_warn(dev, "phy%d, wait tx fifo need send break\n",
1516                         phy_no);
1517                 txid_auto = hisi_sas_phy_read32(hisi_hba, phy_no,
1518                                         TXID_AUTO);
1519                 txid_auto |= TXID_AUTO_CTB_MSK;
1520                 hisi_sas_phy_write32(hisi_hba, phy_no, TXID_AUTO,
1521                                         txid_auto);
1522         }
1523
1524 do_disable:
1525         cfg = hisi_sas_phy_read32(hisi_hba, phy_no, PHY_CFG);
1526         cfg &= ~PHY_CFG_ENA_MSK;
1527         hisi_sas_phy_write32(hisi_hba, phy_no, PHY_CFG, cfg);
1528
1529         /* Open axi bus. */
1530         axi_val &= ~0x1;
1531         hisi_sas_write32(hisi_hba, AXI_MASTER_CFG_BASE +
1532                 AM_CTRL_GLOBAL, axi_val);
1533 }
1534
1535 static void start_phy_v2_hw(struct hisi_hba *hisi_hba, int phy_no)
1536 {
1537         config_id_frame_v2_hw(hisi_hba, phy_no);
1538         config_phy_opt_mode_v2_hw(hisi_hba, phy_no);
1539         enable_phy_v2_hw(hisi_hba, phy_no);
1540 }
1541
1542 static void phy_hard_reset_v2_hw(struct hisi_hba *hisi_hba, int phy_no)
1543 {
1544         struct hisi_sas_phy *phy = &hisi_hba->phy[phy_no];
1545         u32 txid_auto;
1546
1547         disable_phy_v2_hw(hisi_hba, phy_no);
1548         if (phy->identify.device_type == SAS_END_DEVICE) {
1549                 txid_auto = hisi_sas_phy_read32(hisi_hba, phy_no, TXID_AUTO);
1550                 hisi_sas_phy_write32(hisi_hba, phy_no, TXID_AUTO,
1551                                         txid_auto | TX_HARDRST_MSK);
1552         }
1553         msleep(100);
1554         start_phy_v2_hw(hisi_hba, phy_no);
1555 }
1556
1557 static void phy_get_events_v2_hw(struct hisi_hba *hisi_hba, int phy_no)
1558 {
1559         struct hisi_sas_phy *phy = &hisi_hba->phy[phy_no];
1560         struct asd_sas_phy *sas_phy = &phy->sas_phy;
1561         struct sas_phy *sphy = sas_phy->phy;
1562         u32 err4_reg_val, err6_reg_val;
1563
1564         /* loss dword syn, phy reset problem */
1565         err4_reg_val = hisi_sas_phy_read32(hisi_hba, phy_no, SAS_ERR_CNT4_REG);
1566
1567         /* disparity err, invalid dword */
1568         err6_reg_val = hisi_sas_phy_read32(hisi_hba, phy_no, SAS_ERR_CNT6_REG);
1569
1570         sphy->loss_of_dword_sync_count += (err4_reg_val >> 16) & 0xFFFF;
1571         sphy->phy_reset_problem_count += err4_reg_val & 0xFFFF;
1572         sphy->invalid_dword_count += (err6_reg_val & 0xFF0000) >> 16;
1573         sphy->running_disparity_error_count += err6_reg_val & 0xFF;
1574 }
1575
1576 static void phys_init_v2_hw(struct hisi_hba *hisi_hba)
1577 {
1578         int i;
1579
1580         for (i = 0; i < hisi_hba->n_phy; i++) {
1581                 struct hisi_sas_phy *phy = &hisi_hba->phy[i];
1582                 struct asd_sas_phy *sas_phy = &phy->sas_phy;
1583
1584                 if (!sas_phy->phy->enabled)
1585                         continue;
1586
1587                 start_phy_v2_hw(hisi_hba, i);
1588         }
1589 }
1590
1591 static void sl_notify_v2_hw(struct hisi_hba *hisi_hba, int phy_no)
1592 {
1593         u32 sl_control;
1594
1595         sl_control = hisi_sas_phy_read32(hisi_hba, phy_no, SL_CONTROL);
1596         sl_control |= SL_CONTROL_NOTIFY_EN_MSK;
1597         hisi_sas_phy_write32(hisi_hba, phy_no, SL_CONTROL, sl_control);
1598         msleep(1);
1599         sl_control = hisi_sas_phy_read32(hisi_hba, phy_no, SL_CONTROL);
1600         sl_control &= ~SL_CONTROL_NOTIFY_EN_MSK;
1601         hisi_sas_phy_write32(hisi_hba, phy_no, SL_CONTROL, sl_control);
1602 }
1603
1604 static enum sas_linkrate phy_get_max_linkrate_v2_hw(void)
1605 {
1606         return SAS_LINK_RATE_12_0_GBPS;
1607 }
1608
1609 static void phy_set_linkrate_v2_hw(struct hisi_hba *hisi_hba, int phy_no,
1610                 struct sas_phy_linkrates *r)
1611 {
1612         enum sas_linkrate max = r->maximum_linkrate;
1613         u32 prog_phy_link_rate = 0x800;
1614
1615         prog_phy_link_rate |= hisi_sas_get_prog_phy_linkrate_mask(max);
1616         hisi_sas_phy_write32(hisi_hba, phy_no, PROG_PHY_LINK_RATE,
1617                              prog_phy_link_rate);
1618 }
1619
1620 static int get_wideport_bitmap_v2_hw(struct hisi_hba *hisi_hba, int port_id)
1621 {
1622         int i, bitmap = 0;
1623         u32 phy_port_num_ma = hisi_sas_read32(hisi_hba, PHY_PORT_NUM_MA);
1624         u32 phy_state = hisi_sas_read32(hisi_hba, PHY_STATE);
1625
1626         for (i = 0; i < (hisi_hba->n_phy < 9 ? hisi_hba->n_phy : 8); i++)
1627                 if (phy_state & 1 << i)
1628                         if (((phy_port_num_ma >> (i * 4)) & 0xf) == port_id)
1629                                 bitmap |= 1 << i;
1630
1631         if (hisi_hba->n_phy == 9) {
1632                 u32 port_state = hisi_sas_read32(hisi_hba, PORT_STATE);
1633
1634                 if (phy_state & 1 << 8)
1635                         if (((port_state & PORT_STATE_PHY8_PORT_NUM_MSK) >>
1636                              PORT_STATE_PHY8_PORT_NUM_OFF) == port_id)
1637                                 bitmap |= 1 << 9;
1638         }
1639
1640         return bitmap;
1641 }
1642
1643 /*
1644  * The callpath to this function and upto writing the write
1645  * queue pointer should be safe from interruption.
1646  */
1647 static int
1648 get_free_slot_v2_hw(struct hisi_hba *hisi_hba, struct hisi_sas_dq *dq)
1649 {
1650         struct device *dev = hisi_hba->dev;
1651         int queue = dq->id;
1652         u32 r, w;
1653
1654         w = dq->wr_point;
1655         r = hisi_sas_read32_relaxed(hisi_hba,
1656                                 DLVRY_Q_0_RD_PTR + (queue * 0x14));
1657         if (r == (w+1) % HISI_SAS_QUEUE_SLOTS) {
1658                 dev_warn(dev, "full queue=%d r=%d w=%d\n",
1659                                 queue, r, w);
1660                 return -EAGAIN;
1661         }
1662
1663         dq->wr_point = (dq->wr_point + 1) % HISI_SAS_QUEUE_SLOTS;
1664
1665         return w;
1666 }
1667
1668 /* DQ lock must be taken here */
1669 static void start_delivery_v2_hw(struct hisi_sas_dq *dq)
1670 {
1671         struct hisi_hba *hisi_hba = dq->hisi_hba;
1672         struct hisi_sas_slot *s, *s1, *s2 = NULL;
1673         int dlvry_queue = dq->id;
1674         int wp;
1675
1676         list_for_each_entry_safe(s, s1, &dq->list, delivery) {
1677                 if (!s->ready)
1678                         break;
1679                 s2 = s;
1680                 list_del(&s->delivery);
1681         }
1682
1683         if (!s2)
1684                 return;
1685
1686         /*
1687          * Ensure that memories for slots built on other CPUs is observed.
1688          */
1689         smp_rmb();
1690         wp = (s2->dlvry_queue_slot + 1) % HISI_SAS_QUEUE_SLOTS;
1691
1692         hisi_sas_write32(hisi_hba, DLVRY_Q_0_WR_PTR + (dlvry_queue * 0x14), wp);
1693 }
1694
1695 static void prep_prd_sge_v2_hw(struct hisi_hba *hisi_hba,
1696                               struct hisi_sas_slot *slot,
1697                               struct hisi_sas_cmd_hdr *hdr,
1698                               struct scatterlist *scatter,
1699                               int n_elem)
1700 {
1701         struct hisi_sas_sge_page *sge_page = hisi_sas_sge_addr_mem(slot);
1702         struct scatterlist *sg;
1703         int i;
1704
1705         for_each_sg(scatter, sg, n_elem, i) {
1706                 struct hisi_sas_sge *entry = &sge_page->sge[i];
1707
1708                 entry->addr = cpu_to_le64(sg_dma_address(sg));
1709                 entry->page_ctrl_0 = entry->page_ctrl_1 = 0;
1710                 entry->data_len = cpu_to_le32(sg_dma_len(sg));
1711                 entry->data_off = 0;
1712         }
1713
1714         hdr->prd_table_addr = cpu_to_le64(hisi_sas_sge_addr_dma(slot));
1715
1716         hdr->sg_len = cpu_to_le32(n_elem << CMD_HDR_DATA_SGL_LEN_OFF);
1717 }
1718
1719 static void prep_smp_v2_hw(struct hisi_hba *hisi_hba,
1720                           struct hisi_sas_slot *slot)
1721 {
1722         struct sas_task *task = slot->task;
1723         struct hisi_sas_cmd_hdr *hdr = slot->cmd_hdr;
1724         struct domain_device *device = task->dev;
1725         struct hisi_sas_port *port = slot->port;
1726         struct scatterlist *sg_req;
1727         struct hisi_sas_device *sas_dev = device->lldd_dev;
1728         dma_addr_t req_dma_addr;
1729         unsigned int req_len;
1730
1731         /* req */
1732         sg_req = &task->smp_task.smp_req;
1733         req_dma_addr = sg_dma_address(sg_req);
1734         req_len = sg_dma_len(&task->smp_task.smp_req);
1735
1736         /* create header */
1737         /* dw0 */
1738         hdr->dw0 = cpu_to_le32((port->id << CMD_HDR_PORT_OFF) |
1739                                (1 << CMD_HDR_PRIORITY_OFF) | /* high pri */
1740                                (2 << CMD_HDR_CMD_OFF)); /* smp */
1741
1742         /* map itct entry */
1743         hdr->dw1 = cpu_to_le32((sas_dev->device_id << CMD_HDR_DEV_ID_OFF) |
1744                                (1 << CMD_HDR_FRAME_TYPE_OFF) |
1745                                (DIR_NO_DATA << CMD_HDR_DIR_OFF));
1746
1747         /* dw2 */
1748         hdr->dw2 = cpu_to_le32((((req_len - 4) / 4) << CMD_HDR_CFL_OFF) |
1749                                (HISI_SAS_MAX_SMP_RESP_SZ / 4 <<
1750                                CMD_HDR_MRFL_OFF));
1751
1752         hdr->transfer_tags = cpu_to_le32(slot->idx << CMD_HDR_IPTT_OFF);
1753
1754         hdr->cmd_table_addr = cpu_to_le64(req_dma_addr);
1755         hdr->sts_buffer_addr = cpu_to_le64(hisi_sas_status_buf_addr_dma(slot));
1756 }
1757
1758 static void prep_ssp_v2_hw(struct hisi_hba *hisi_hba,
1759                           struct hisi_sas_slot *slot)
1760 {
1761         struct sas_task *task = slot->task;
1762         struct hisi_sas_cmd_hdr *hdr = slot->cmd_hdr;
1763         struct domain_device *device = task->dev;
1764         struct hisi_sas_device *sas_dev = device->lldd_dev;
1765         struct hisi_sas_port *port = slot->port;
1766         struct sas_ssp_task *ssp_task = &task->ssp_task;
1767         struct scsi_cmnd *scsi_cmnd = ssp_task->cmd;
1768         struct hisi_sas_tmf_task *tmf = slot->tmf;
1769         int has_data = 0, priority = !!tmf;
1770         u8 *buf_cmd;
1771         u32 dw1 = 0, dw2 = 0;
1772
1773         hdr->dw0 = cpu_to_le32((1 << CMD_HDR_RESP_REPORT_OFF) |
1774                                (2 << CMD_HDR_TLR_CTRL_OFF) |
1775                                (port->id << CMD_HDR_PORT_OFF) |
1776                                (priority << CMD_HDR_PRIORITY_OFF) |
1777                                (1 << CMD_HDR_CMD_OFF)); /* ssp */
1778
1779         dw1 = 1 << CMD_HDR_VDTL_OFF;
1780         if (tmf) {
1781                 dw1 |= 2 << CMD_HDR_FRAME_TYPE_OFF;
1782                 dw1 |= DIR_NO_DATA << CMD_HDR_DIR_OFF;
1783         } else {
1784                 dw1 |= 1 << CMD_HDR_FRAME_TYPE_OFF;
1785                 switch (scsi_cmnd->sc_data_direction) {
1786                 case DMA_TO_DEVICE:
1787                         has_data = 1;
1788                         dw1 |= DIR_TO_DEVICE << CMD_HDR_DIR_OFF;
1789                         break;
1790                 case DMA_FROM_DEVICE:
1791                         has_data = 1;
1792                         dw1 |= DIR_TO_INI << CMD_HDR_DIR_OFF;
1793                         break;
1794                 default:
1795                         dw1 &= ~CMD_HDR_DIR_MSK;
1796                 }
1797         }
1798
1799         /* map itct entry */
1800         dw1 |= sas_dev->device_id << CMD_HDR_DEV_ID_OFF;
1801         hdr->dw1 = cpu_to_le32(dw1);
1802
1803         dw2 = (((sizeof(struct ssp_command_iu) + sizeof(struct ssp_frame_hdr)
1804               + 3) / 4) << CMD_HDR_CFL_OFF) |
1805               ((HISI_SAS_MAX_SSP_RESP_SZ / 4) << CMD_HDR_MRFL_OFF) |
1806               (2 << CMD_HDR_SG_MOD_OFF);
1807         hdr->dw2 = cpu_to_le32(dw2);
1808
1809         hdr->transfer_tags = cpu_to_le32(slot->idx);
1810
1811         if (has_data)
1812                 prep_prd_sge_v2_hw(hisi_hba, slot, hdr, task->scatter,
1813                                         slot->n_elem);
1814
1815         hdr->data_transfer_len = cpu_to_le32(task->total_xfer_len);
1816         hdr->cmd_table_addr = cpu_to_le64(hisi_sas_cmd_hdr_addr_dma(slot));
1817         hdr->sts_buffer_addr = cpu_to_le64(hisi_sas_status_buf_addr_dma(slot));
1818
1819         buf_cmd = hisi_sas_cmd_hdr_addr_mem(slot) +
1820                 sizeof(struct ssp_frame_hdr);
1821
1822         memcpy(buf_cmd, &task->ssp_task.LUN, 8);
1823         if (!tmf) {
1824                 buf_cmd[9] = task->ssp_task.task_attr |
1825                                 (task->ssp_task.task_prio << 3);
1826                 memcpy(buf_cmd + 12, task->ssp_task.cmd->cmnd,
1827                                 task->ssp_task.cmd->cmd_len);
1828         } else {
1829                 buf_cmd[10] = tmf->tmf;
1830                 switch (tmf->tmf) {
1831                 case TMF_ABORT_TASK:
1832                 case TMF_QUERY_TASK:
1833                         buf_cmd[12] =
1834                                 (tmf->tag_of_task_to_be_managed >> 8) & 0xff;
1835                         buf_cmd[13] =
1836                                 tmf->tag_of_task_to_be_managed & 0xff;
1837                         break;
1838                 default:
1839                         break;
1840                 }
1841         }
1842 }
1843
1844 #define TRANS_TX_ERR    0
1845 #define TRANS_RX_ERR    1
1846 #define DMA_TX_ERR              2
1847 #define SIPC_RX_ERR             3
1848 #define DMA_RX_ERR              4
1849
1850 #define DMA_TX_ERR_OFF  0
1851 #define DMA_TX_ERR_MSK  (0xffff << DMA_TX_ERR_OFF)
1852 #define SIPC_RX_ERR_OFF 16
1853 #define SIPC_RX_ERR_MSK (0xffff << SIPC_RX_ERR_OFF)
1854
1855 static int parse_trans_tx_err_code_v2_hw(u32 err_msk)
1856 {
1857         static const u8 trans_tx_err_code_prio[] = {
1858                 TRANS_TX_OPEN_FAIL_WITH_IT_NEXUS_LOSS,
1859                 TRANS_TX_ERR_PHY_NOT_ENABLE,
1860                 TRANS_TX_OPEN_CNX_ERR_WRONG_DESTINATION,
1861                 TRANS_TX_OPEN_CNX_ERR_ZONE_VIOLATION,
1862                 TRANS_TX_OPEN_CNX_ERR_BY_OTHER,
1863                 RESERVED0,
1864                 TRANS_TX_OPEN_CNX_ERR_AIP_TIMEOUT,
1865                 TRANS_TX_OPEN_CNX_ERR_STP_RESOURCES_BUSY,
1866                 TRANS_TX_OPEN_CNX_ERR_PROTOCOL_NOT_SUPPORTED,
1867                 TRANS_TX_OPEN_CNX_ERR_CONNECTION_RATE_NOT_SUPPORTED,
1868                 TRANS_TX_OPEN_CNX_ERR_BAD_DESTINATION,
1869                 TRANS_TX_OPEN_CNX_ERR_BREAK_RCVD,
1870                 TRANS_TX_OPEN_CNX_ERR_LOW_PHY_POWER,
1871                 TRANS_TX_OPEN_CNX_ERR_PATHWAY_BLOCKED,
1872                 TRANS_TX_OPEN_CNX_ERR_OPEN_TIMEOUT,
1873                 TRANS_TX_OPEN_CNX_ERR_NO_DESTINATION,
1874                 TRANS_TX_OPEN_RETRY_ERR_THRESHOLD_REACHED,
1875                 TRANS_TX_ERR_WITH_CLOSE_PHYDISALE,
1876                 TRANS_TX_ERR_WITH_CLOSE_DWS_TIMEOUT,
1877                 TRANS_TX_ERR_WITH_CLOSE_COMINIT,
1878                 TRANS_TX_ERR_WITH_BREAK_TIMEOUT,
1879                 TRANS_TX_ERR_WITH_BREAK_REQUEST,
1880                 TRANS_TX_ERR_WITH_BREAK_RECEVIED,
1881                 TRANS_TX_ERR_WITH_CLOSE_TIMEOUT,
1882                 TRANS_TX_ERR_WITH_CLOSE_NORMAL,
1883                 TRANS_TX_ERR_WITH_NAK_RECEVIED,
1884                 TRANS_TX_ERR_WITH_ACK_NAK_TIMEOUT,
1885                 TRANS_TX_ERR_WITH_CREDIT_TIMEOUT,
1886                 TRANS_TX_ERR_WITH_IPTT_CONFLICT,
1887                 TRANS_TX_ERR_WITH_OPEN_BY_DES_OR_OTHERS,
1888                 TRANS_TX_ERR_WITH_WAIT_RECV_TIMEOUT,
1889         };
1890         int index, i;
1891
1892         for (i = 0; i < ARRAY_SIZE(trans_tx_err_code_prio); i++) {
1893                 index = trans_tx_err_code_prio[i] - TRANS_TX_FAIL_BASE;
1894                 if (err_msk & (1 << index))
1895                         return trans_tx_err_code_prio[i];
1896         }
1897         return -1;
1898 }
1899
1900 static int parse_trans_rx_err_code_v2_hw(u32 err_msk)
1901 {
1902         static const u8 trans_rx_err_code_prio[] = {
1903                 TRANS_RX_ERR_WITH_RXFRAME_CRC_ERR,
1904                 TRANS_RX_ERR_WITH_RXFIS_8B10B_DISP_ERR,
1905                 TRANS_RX_ERR_WITH_RXFRAME_HAVE_ERRPRM,
1906                 TRANS_RX_ERR_WITH_RXFIS_DECODE_ERROR,
1907                 TRANS_RX_ERR_WITH_RXFIS_CRC_ERR,
1908                 TRANS_RX_ERR_WITH_RXFRAME_LENGTH_OVERRUN,
1909                 TRANS_RX_ERR_WITH_RXFIS_RX_SYNCP,
1910                 TRANS_RX_ERR_WITH_LINK_BUF_OVERRUN,
1911                 TRANS_RX_ERR_WITH_CLOSE_PHY_DISABLE,
1912                 TRANS_RX_ERR_WITH_CLOSE_DWS_TIMEOUT,
1913                 TRANS_RX_ERR_WITH_CLOSE_COMINIT,
1914                 TRANS_RX_ERR_WITH_BREAK_TIMEOUT,
1915                 TRANS_RX_ERR_WITH_BREAK_REQUEST,
1916                 TRANS_RX_ERR_WITH_BREAK_RECEVIED,
1917                 RESERVED1,
1918                 TRANS_RX_ERR_WITH_CLOSE_NORMAL,
1919                 TRANS_RX_ERR_WITH_DATA_LEN0,
1920                 TRANS_RX_ERR_WITH_BAD_HASH,
1921                 TRANS_RX_XRDY_WLEN_ZERO_ERR,
1922                 TRANS_RX_SSP_FRM_LEN_ERR,
1923                 RESERVED2,
1924                 RESERVED3,
1925                 RESERVED4,
1926                 RESERVED5,
1927                 TRANS_RX_ERR_WITH_BAD_FRM_TYPE,
1928                 TRANS_RX_SMP_FRM_LEN_ERR,
1929                 TRANS_RX_SMP_RESP_TIMEOUT_ERR,
1930                 RESERVED6,
1931                 RESERVED7,
1932                 RESERVED8,
1933                 RESERVED9,
1934                 TRANS_RX_R_ERR,
1935         };
1936         int index, i;
1937
1938         for (i = 0; i < ARRAY_SIZE(trans_rx_err_code_prio); i++) {
1939                 index = trans_rx_err_code_prio[i] - TRANS_RX_FAIL_BASE;
1940                 if (err_msk & (1 << index))
1941                         return trans_rx_err_code_prio[i];
1942         }
1943         return -1;
1944 }
1945
1946 static int parse_dma_tx_err_code_v2_hw(u32 err_msk)
1947 {
1948         static const u8 dma_tx_err_code_prio[] = {
1949                 DMA_TX_UNEXP_XFER_ERR,
1950                 DMA_TX_UNEXP_RETRANS_ERR,
1951                 DMA_TX_XFER_LEN_OVERFLOW,
1952                 DMA_TX_XFER_OFFSET_ERR,
1953                 DMA_TX_RAM_ECC_ERR,
1954                 DMA_TX_DIF_LEN_ALIGN_ERR,
1955                 DMA_TX_DIF_CRC_ERR,
1956                 DMA_TX_DIF_APP_ERR,
1957                 DMA_TX_DIF_RPP_ERR,
1958                 DMA_TX_DATA_SGL_OVERFLOW,
1959                 DMA_TX_DIF_SGL_OVERFLOW,
1960         };
1961         int index, i;
1962
1963         for (i = 0; i < ARRAY_SIZE(dma_tx_err_code_prio); i++) {
1964                 index = dma_tx_err_code_prio[i] - DMA_TX_ERR_BASE;
1965                 err_msk = err_msk & DMA_TX_ERR_MSK;
1966                 if (err_msk & (1 << index))
1967                         return dma_tx_err_code_prio[i];
1968         }
1969         return -1;
1970 }
1971
1972 static int parse_sipc_rx_err_code_v2_hw(u32 err_msk)
1973 {
1974         static const u8 sipc_rx_err_code_prio[] = {
1975                 SIPC_RX_FIS_STATUS_ERR_BIT_VLD,
1976                 SIPC_RX_PIO_WRSETUP_STATUS_DRQ_ERR,
1977                 SIPC_RX_FIS_STATUS_BSY_BIT_ERR,
1978                 SIPC_RX_WRSETUP_LEN_ODD_ERR,
1979                 SIPC_RX_WRSETUP_LEN_ZERO_ERR,
1980                 SIPC_RX_WRDATA_LEN_NOT_MATCH_ERR,
1981                 SIPC_RX_NCQ_WRSETUP_OFFSET_ERR,
1982                 SIPC_RX_NCQ_WRSETUP_AUTO_ACTIVE_ERR,
1983                 SIPC_RX_SATA_UNEXP_FIS_ERR,
1984                 SIPC_RX_WRSETUP_ESTATUS_ERR,
1985                 SIPC_RX_DATA_UNDERFLOW_ERR,
1986         };
1987         int index, i;
1988
1989         for (i = 0; i < ARRAY_SIZE(sipc_rx_err_code_prio); i++) {
1990                 index = sipc_rx_err_code_prio[i] - SIPC_RX_ERR_BASE;
1991                 err_msk = err_msk & SIPC_RX_ERR_MSK;
1992                 if (err_msk & (1 << (index + 0x10)))
1993                         return sipc_rx_err_code_prio[i];
1994         }
1995         return -1;
1996 }
1997
1998 static int parse_dma_rx_err_code_v2_hw(u32 err_msk)
1999 {
2000         static const u8 dma_rx_err_code_prio[] = {
2001                 DMA_RX_UNKNOWN_FRM_ERR,
2002                 DMA_RX_DATA_LEN_OVERFLOW,
2003                 DMA_RX_DATA_LEN_UNDERFLOW,
2004                 DMA_RX_DATA_OFFSET_ERR,
2005                 RESERVED10,
2006                 DMA_RX_SATA_FRAME_TYPE_ERR,
2007                 DMA_RX_RESP_BUF_OVERFLOW,
2008                 DMA_RX_UNEXP_RETRANS_RESP_ERR,
2009                 DMA_RX_UNEXP_NORM_RESP_ERR,
2010                 DMA_RX_UNEXP_RDFRAME_ERR,
2011                 DMA_RX_PIO_DATA_LEN_ERR,
2012                 DMA_RX_RDSETUP_STATUS_ERR,
2013                 DMA_RX_RDSETUP_STATUS_DRQ_ERR,
2014                 DMA_RX_RDSETUP_STATUS_BSY_ERR,
2015                 DMA_RX_RDSETUP_LEN_ODD_ERR,
2016                 DMA_RX_RDSETUP_LEN_ZERO_ERR,
2017                 DMA_RX_RDSETUP_LEN_OVER_ERR,
2018                 DMA_RX_RDSETUP_OFFSET_ERR,
2019                 DMA_RX_RDSETUP_ACTIVE_ERR,
2020                 DMA_RX_RDSETUP_ESTATUS_ERR,
2021                 DMA_RX_RAM_ECC_ERR,
2022                 DMA_RX_DIF_CRC_ERR,
2023                 DMA_RX_DIF_APP_ERR,
2024                 DMA_RX_DIF_RPP_ERR,
2025                 DMA_RX_DATA_SGL_OVERFLOW,
2026                 DMA_RX_DIF_SGL_OVERFLOW,
2027         };
2028         int index, i;
2029
2030         for (i = 0; i < ARRAY_SIZE(dma_rx_err_code_prio); i++) {
2031                 index = dma_rx_err_code_prio[i] - DMA_RX_ERR_BASE;
2032                 if (err_msk & (1 << index))
2033                         return dma_rx_err_code_prio[i];
2034         }
2035         return -1;
2036 }
2037
2038 /* by default, task resp is complete */
2039 static void slot_err_v2_hw(struct hisi_hba *hisi_hba,
2040                            struct sas_task *task,
2041                            struct hisi_sas_slot *slot,
2042                            int err_phase)
2043 {
2044         struct task_status_struct *ts = &task->task_status;
2045         struct hisi_sas_err_record_v2 *err_record =
2046                         hisi_sas_status_buf_addr_mem(slot);
2047         u32 trans_tx_fail_type = cpu_to_le32(err_record->trans_tx_fail_type);
2048         u32 trans_rx_fail_type = cpu_to_le32(err_record->trans_rx_fail_type);
2049         u16 dma_tx_err_type = cpu_to_le16(err_record->dma_tx_err_type);
2050         u16 sipc_rx_err_type = cpu_to_le16(err_record->sipc_rx_err_type);
2051         u32 dma_rx_err_type = cpu_to_le32(err_record->dma_rx_err_type);
2052         int error = -1;
2053
2054         if (err_phase == 1) {
2055                 /* error in TX phase, the priority of error is: DW2 > DW0 */
2056                 error = parse_dma_tx_err_code_v2_hw(dma_tx_err_type);
2057                 if (error == -1)
2058                         error = parse_trans_tx_err_code_v2_hw(
2059                                         trans_tx_fail_type);
2060         } else if (err_phase == 2) {
2061                 /* error in RX phase, the priority is: DW1 > DW3 > DW2 */
2062                 error = parse_trans_rx_err_code_v2_hw(
2063                                         trans_rx_fail_type);
2064                 if (error == -1) {
2065                         error = parse_dma_rx_err_code_v2_hw(
2066                                         dma_rx_err_type);
2067                         if (error == -1)
2068                                 error = parse_sipc_rx_err_code_v2_hw(
2069                                                 sipc_rx_err_type);
2070                 }
2071         }
2072
2073         switch (task->task_proto) {
2074         case SAS_PROTOCOL_SSP:
2075         {
2076                 switch (error) {
2077                 case TRANS_TX_OPEN_CNX_ERR_NO_DESTINATION:
2078                 {
2079                         ts->stat = SAS_OPEN_REJECT;
2080                         ts->open_rej_reason = SAS_OREJ_NO_DEST;
2081                         break;
2082                 }
2083                 case TRANS_TX_OPEN_CNX_ERR_PROTOCOL_NOT_SUPPORTED:
2084                 {
2085                         ts->stat = SAS_OPEN_REJECT;
2086                         ts->open_rej_reason = SAS_OREJ_EPROTO;
2087                         break;
2088                 }
2089                 case TRANS_TX_OPEN_CNX_ERR_CONNECTION_RATE_NOT_SUPPORTED:
2090                 {
2091                         ts->stat = SAS_OPEN_REJECT;
2092                         ts->open_rej_reason = SAS_OREJ_CONN_RATE;
2093                         break;
2094                 }
2095                 case TRANS_TX_OPEN_CNX_ERR_BAD_DESTINATION:
2096                 {
2097                         ts->stat = SAS_OPEN_REJECT;
2098                         ts->open_rej_reason = SAS_OREJ_BAD_DEST;
2099                         break;
2100                 }
2101                 case TRANS_TX_OPEN_CNX_ERR_WRONG_DESTINATION:
2102                 {
2103                         ts->stat = SAS_OPEN_REJECT;
2104                         ts->open_rej_reason = SAS_OREJ_WRONG_DEST;
2105                         break;
2106                 }
2107                 case DMA_RX_UNEXP_NORM_RESP_ERR:
2108                 case TRANS_TX_OPEN_CNX_ERR_ZONE_VIOLATION:
2109                 case DMA_RX_RESP_BUF_OVERFLOW:
2110                 {
2111                         ts->stat = SAS_OPEN_REJECT;
2112                         ts->open_rej_reason = SAS_OREJ_UNKNOWN;
2113                         break;
2114                 }
2115                 case TRANS_TX_OPEN_CNX_ERR_LOW_PHY_POWER:
2116                 {
2117                         /* not sure */
2118                         ts->stat = SAS_DEV_NO_RESPONSE;
2119                         break;
2120                 }
2121                 case DMA_RX_DATA_LEN_OVERFLOW:
2122                 {
2123                         ts->stat = SAS_DATA_OVERRUN;
2124                         ts->residual = 0;
2125                         break;
2126                 }
2127                 case DMA_RX_DATA_LEN_UNDERFLOW:
2128                 {
2129                         ts->residual = trans_tx_fail_type;
2130                         ts->stat = SAS_DATA_UNDERRUN;
2131                         break;
2132                 }
2133                 case TRANS_TX_OPEN_FAIL_WITH_IT_NEXUS_LOSS:
2134                 case TRANS_TX_ERR_PHY_NOT_ENABLE:
2135                 case TRANS_TX_OPEN_CNX_ERR_BY_OTHER:
2136                 case TRANS_TX_OPEN_CNX_ERR_AIP_TIMEOUT:
2137                 case TRANS_TX_OPEN_CNX_ERR_BREAK_RCVD:
2138                 case TRANS_TX_OPEN_CNX_ERR_PATHWAY_BLOCKED:
2139                 case TRANS_TX_OPEN_CNX_ERR_OPEN_TIMEOUT:
2140                 case TRANS_TX_OPEN_RETRY_ERR_THRESHOLD_REACHED:
2141                 case TRANS_TX_ERR_WITH_BREAK_TIMEOUT:
2142                 case TRANS_TX_ERR_WITH_BREAK_REQUEST:
2143                 case TRANS_TX_ERR_WITH_BREAK_RECEVIED:
2144                 case TRANS_TX_ERR_WITH_CLOSE_TIMEOUT:
2145                 case TRANS_TX_ERR_WITH_CLOSE_NORMAL:
2146                 case TRANS_TX_ERR_WITH_CLOSE_PHYDISALE:
2147                 case TRANS_TX_ERR_WITH_CLOSE_DWS_TIMEOUT:
2148                 case TRANS_TX_ERR_WITH_CLOSE_COMINIT:
2149                 case TRANS_TX_ERR_WITH_NAK_RECEVIED:
2150                 case TRANS_TX_ERR_WITH_ACK_NAK_TIMEOUT:
2151                 case TRANS_TX_ERR_WITH_CREDIT_TIMEOUT:
2152                 case TRANS_TX_ERR_WITH_IPTT_CONFLICT:
2153                 case TRANS_RX_ERR_WITH_RXFRAME_CRC_ERR:
2154                 case TRANS_RX_ERR_WITH_RXFIS_8B10B_DISP_ERR:
2155                 case TRANS_RX_ERR_WITH_RXFRAME_HAVE_ERRPRM:
2156                 case TRANS_RX_ERR_WITH_LINK_BUF_OVERRUN:
2157                 case TRANS_RX_ERR_WITH_BREAK_TIMEOUT:
2158                 case TRANS_RX_ERR_WITH_BREAK_REQUEST:
2159                 case TRANS_RX_ERR_WITH_BREAK_RECEVIED:
2160                 case TRANS_RX_ERR_WITH_CLOSE_NORMAL:
2161                 case TRANS_RX_ERR_WITH_CLOSE_DWS_TIMEOUT:
2162                 case TRANS_RX_ERR_WITH_CLOSE_COMINIT:
2163                 case TRANS_TX_ERR_FRAME_TXED:
2164                 case TRANS_RX_ERR_WITH_CLOSE_PHY_DISABLE:
2165                 case TRANS_RX_ERR_WITH_DATA_LEN0:
2166                 case TRANS_RX_ERR_WITH_BAD_HASH:
2167                 case TRANS_RX_XRDY_WLEN_ZERO_ERR:
2168                 case TRANS_RX_SSP_FRM_LEN_ERR:
2169                 case TRANS_RX_ERR_WITH_BAD_FRM_TYPE:
2170                 case DMA_TX_DATA_SGL_OVERFLOW:
2171                 case DMA_TX_UNEXP_XFER_ERR:
2172                 case DMA_TX_UNEXP_RETRANS_ERR:
2173                 case DMA_TX_XFER_LEN_OVERFLOW:
2174                 case DMA_TX_XFER_OFFSET_ERR:
2175                 case SIPC_RX_DATA_UNDERFLOW_ERR:
2176                 case DMA_RX_DATA_SGL_OVERFLOW:
2177                 case DMA_RX_DATA_OFFSET_ERR:
2178                 case DMA_RX_RDSETUP_LEN_ODD_ERR:
2179                 case DMA_RX_RDSETUP_LEN_ZERO_ERR:
2180                 case DMA_RX_RDSETUP_LEN_OVER_ERR:
2181                 case DMA_RX_SATA_FRAME_TYPE_ERR:
2182                 case DMA_RX_UNKNOWN_FRM_ERR:
2183                 {
2184                         /* This will request a retry */
2185                         ts->stat = SAS_QUEUE_FULL;
2186                         slot->abort = 1;
2187                         break;
2188                 }
2189                 default:
2190                         break;
2191                 }
2192         }
2193                 break;
2194         case SAS_PROTOCOL_SMP:
2195                 ts->stat = SAM_STAT_CHECK_CONDITION;
2196                 break;
2197
2198         case SAS_PROTOCOL_SATA:
2199         case SAS_PROTOCOL_STP:
2200         case SAS_PROTOCOL_SATA | SAS_PROTOCOL_STP:
2201         {
2202                 switch (error) {
2203                 case TRANS_TX_OPEN_CNX_ERR_NO_DESTINATION:
2204                 {
2205                         ts->stat = SAS_OPEN_REJECT;
2206                         ts->open_rej_reason = SAS_OREJ_NO_DEST;
2207                         break;
2208                 }
2209                 case TRANS_TX_OPEN_CNX_ERR_LOW_PHY_POWER:
2210                 {
2211                         ts->resp = SAS_TASK_UNDELIVERED;
2212                         ts->stat = SAS_DEV_NO_RESPONSE;
2213                         break;
2214                 }
2215                 case TRANS_TX_OPEN_CNX_ERR_PROTOCOL_NOT_SUPPORTED:
2216                 {
2217                         ts->stat = SAS_OPEN_REJECT;
2218                         ts->open_rej_reason = SAS_OREJ_EPROTO;
2219                         break;
2220                 }
2221                 case TRANS_TX_OPEN_CNX_ERR_CONNECTION_RATE_NOT_SUPPORTED:
2222                 {
2223                         ts->stat = SAS_OPEN_REJECT;
2224                         ts->open_rej_reason = SAS_OREJ_CONN_RATE;
2225                         break;
2226                 }
2227                 case TRANS_TX_OPEN_CNX_ERR_BAD_DESTINATION:
2228                 {
2229                         ts->stat = SAS_OPEN_REJECT;
2230                         ts->open_rej_reason = SAS_OREJ_CONN_RATE;
2231                         break;
2232                 }
2233                 case TRANS_TX_OPEN_CNX_ERR_WRONG_DESTINATION:
2234                 {
2235                         ts->stat = SAS_OPEN_REJECT;
2236                         ts->open_rej_reason = SAS_OREJ_WRONG_DEST;
2237                         break;
2238                 }
2239                 case DMA_RX_RESP_BUF_OVERFLOW:
2240                 case DMA_RX_UNEXP_NORM_RESP_ERR:
2241                 case TRANS_TX_OPEN_CNX_ERR_ZONE_VIOLATION:
2242                 {
2243                         ts->stat = SAS_OPEN_REJECT;
2244                         ts->open_rej_reason = SAS_OREJ_UNKNOWN;
2245                         break;
2246                 }
2247                 case DMA_RX_DATA_LEN_OVERFLOW:
2248                 {
2249                         ts->stat = SAS_DATA_OVERRUN;
2250                         ts->residual = 0;
2251                         break;
2252                 }
2253                 case DMA_RX_DATA_LEN_UNDERFLOW:
2254                 {
2255                         ts->residual = trans_tx_fail_type;
2256                         ts->stat = SAS_DATA_UNDERRUN;
2257                         break;
2258                 }
2259                 case TRANS_TX_OPEN_FAIL_WITH_IT_NEXUS_LOSS:
2260                 case TRANS_TX_ERR_PHY_NOT_ENABLE:
2261                 case TRANS_TX_OPEN_CNX_ERR_BY_OTHER:
2262                 case TRANS_TX_OPEN_CNX_ERR_AIP_TIMEOUT:
2263                 case TRANS_TX_OPEN_CNX_ERR_BREAK_RCVD:
2264                 case TRANS_TX_OPEN_CNX_ERR_PATHWAY_BLOCKED:
2265                 case TRANS_TX_OPEN_CNX_ERR_OPEN_TIMEOUT:
2266                 case TRANS_TX_OPEN_RETRY_ERR_THRESHOLD_REACHED:
2267                 case TRANS_TX_ERR_WITH_BREAK_TIMEOUT:
2268                 case TRANS_TX_ERR_WITH_BREAK_REQUEST:
2269                 case TRANS_TX_ERR_WITH_BREAK_RECEVIED:
2270                 case TRANS_TX_ERR_WITH_CLOSE_TIMEOUT:
2271                 case TRANS_TX_ERR_WITH_CLOSE_NORMAL:
2272                 case TRANS_TX_ERR_WITH_CLOSE_PHYDISALE:
2273                 case TRANS_TX_ERR_WITH_CLOSE_DWS_TIMEOUT:
2274                 case TRANS_TX_ERR_WITH_CLOSE_COMINIT:
2275                 case TRANS_TX_ERR_WITH_ACK_NAK_TIMEOUT:
2276                 case TRANS_TX_ERR_WITH_CREDIT_TIMEOUT:
2277                 case TRANS_TX_ERR_WITH_OPEN_BY_DES_OR_OTHERS:
2278                 case TRANS_TX_ERR_WITH_WAIT_RECV_TIMEOUT:
2279                 case TRANS_RX_ERR_WITH_RXFRAME_HAVE_ERRPRM:
2280                 case TRANS_RX_ERR_WITH_RXFIS_8B10B_DISP_ERR:
2281                 case TRANS_RX_ERR_WITH_RXFIS_DECODE_ERROR:
2282                 case TRANS_RX_ERR_WITH_RXFIS_CRC_ERR:
2283                 case TRANS_RX_ERR_WITH_RXFRAME_LENGTH_OVERRUN:
2284                 case TRANS_RX_ERR_WITH_RXFIS_RX_SYNCP:
2285                 case TRANS_RX_ERR_WITH_LINK_BUF_OVERRUN:
2286                 case TRANS_RX_ERR_WITH_BREAK_TIMEOUT:
2287                 case TRANS_RX_ERR_WITH_BREAK_REQUEST:
2288                 case TRANS_RX_ERR_WITH_BREAK_RECEVIED:
2289                 case TRANS_RX_ERR_WITH_CLOSE_NORMAL:
2290                 case TRANS_RX_ERR_WITH_CLOSE_PHY_DISABLE:
2291                 case TRANS_RX_ERR_WITH_CLOSE_DWS_TIMEOUT:
2292                 case TRANS_RX_ERR_WITH_CLOSE_COMINIT:
2293                 case TRANS_RX_ERR_WITH_DATA_LEN0:
2294                 case TRANS_RX_ERR_WITH_BAD_HASH:
2295                 case TRANS_RX_XRDY_WLEN_ZERO_ERR:
2296                 case TRANS_RX_ERR_WITH_BAD_FRM_TYPE:
2297                 case DMA_TX_DATA_SGL_OVERFLOW:
2298                 case DMA_TX_UNEXP_XFER_ERR:
2299                 case DMA_TX_UNEXP_RETRANS_ERR:
2300                 case DMA_TX_XFER_LEN_OVERFLOW:
2301                 case DMA_TX_XFER_OFFSET_ERR:
2302                 case SIPC_RX_FIS_STATUS_ERR_BIT_VLD:
2303                 case SIPC_RX_PIO_WRSETUP_STATUS_DRQ_ERR:
2304                 case SIPC_RX_FIS_STATUS_BSY_BIT_ERR:
2305                 case SIPC_RX_WRSETUP_LEN_ODD_ERR:
2306                 case SIPC_RX_WRSETUP_LEN_ZERO_ERR:
2307                 case SIPC_RX_WRDATA_LEN_NOT_MATCH_ERR:
2308                 case SIPC_RX_SATA_UNEXP_FIS_ERR:
2309                 case DMA_RX_DATA_SGL_OVERFLOW:
2310                 case DMA_RX_DATA_OFFSET_ERR:
2311                 case DMA_RX_SATA_FRAME_TYPE_ERR:
2312                 case DMA_RX_UNEXP_RDFRAME_ERR:
2313                 case DMA_RX_PIO_DATA_LEN_ERR:
2314                 case DMA_RX_RDSETUP_STATUS_ERR:
2315                 case DMA_RX_RDSETUP_STATUS_DRQ_ERR:
2316                 case DMA_RX_RDSETUP_STATUS_BSY_ERR:
2317                 case DMA_RX_RDSETUP_LEN_ODD_ERR:
2318                 case DMA_RX_RDSETUP_LEN_ZERO_ERR:
2319                 case DMA_RX_RDSETUP_LEN_OVER_ERR:
2320                 case DMA_RX_RDSETUP_OFFSET_ERR:
2321                 case DMA_RX_RDSETUP_ACTIVE_ERR:
2322                 case DMA_RX_RDSETUP_ESTATUS_ERR:
2323                 case DMA_RX_UNKNOWN_FRM_ERR:
2324                 case TRANS_RX_SSP_FRM_LEN_ERR:
2325                 case TRANS_TX_OPEN_CNX_ERR_STP_RESOURCES_BUSY:
2326                 {
2327                         slot->abort = 1;
2328                         ts->stat = SAS_PHY_DOWN;
2329                         break;
2330                 }
2331                 default:
2332                 {
2333                         ts->stat = SAS_PROTO_RESPONSE;
2334                         break;
2335                 }
2336                 }
2337                 hisi_sas_sata_done(task, slot);
2338         }
2339                 break;
2340         default:
2341                 break;
2342         }
2343 }
2344
2345 static int
2346 slot_complete_v2_hw(struct hisi_hba *hisi_hba, struct hisi_sas_slot *slot)
2347 {
2348         struct sas_task *task = slot->task;
2349         struct hisi_sas_device *sas_dev;
2350         struct device *dev = hisi_hba->dev;
2351         struct task_status_struct *ts;
2352         struct domain_device *device;
2353         struct sas_ha_struct *ha;
2354         enum exec_status sts;
2355         struct hisi_sas_complete_v2_hdr *complete_queue =
2356                         hisi_hba->complete_hdr[slot->cmplt_queue];
2357         struct hisi_sas_complete_v2_hdr *complete_hdr =
2358                         &complete_queue[slot->cmplt_queue_slot];
2359         unsigned long flags;
2360         bool is_internal = slot->is_internal;
2361
2362         if (unlikely(!task || !task->lldd_task || !task->dev))
2363                 return -EINVAL;
2364
2365         ts = &task->task_status;
2366         device = task->dev;
2367         ha = device->port->ha;
2368         sas_dev = device->lldd_dev;
2369
2370         spin_lock_irqsave(&task->task_state_lock, flags);
2371         task->task_state_flags &=
2372                 ~(SAS_TASK_STATE_PENDING | SAS_TASK_AT_INITIATOR);
2373         spin_unlock_irqrestore(&task->task_state_lock, flags);
2374
2375         memset(ts, 0, sizeof(*ts));
2376         ts->resp = SAS_TASK_COMPLETE;
2377
2378         if (unlikely(!sas_dev)) {
2379                 dev_dbg(dev, "slot complete: port has no device\n");
2380                 ts->stat = SAS_PHY_DOWN;
2381                 goto out;
2382         }
2383
2384         /* Use SAS+TMF status codes */
2385         switch ((complete_hdr->dw0 & CMPLT_HDR_ABORT_STAT_MSK)
2386                         >> CMPLT_HDR_ABORT_STAT_OFF) {
2387         case STAT_IO_ABORTED:
2388                 /* this io has been aborted by abort command */
2389                 ts->stat = SAS_ABORTED_TASK;
2390                 goto out;
2391         case STAT_IO_COMPLETE:
2392                 /* internal abort command complete */
2393                 ts->stat = TMF_RESP_FUNC_SUCC;
2394                 del_timer(&slot->internal_abort_timer);
2395                 goto out;
2396         case STAT_IO_NO_DEVICE:
2397                 ts->stat = TMF_RESP_FUNC_COMPLETE;
2398                 del_timer(&slot->internal_abort_timer);
2399                 goto out;
2400         case STAT_IO_NOT_VALID:
2401                 /* abort single io, controller don't find
2402                  * the io need to abort
2403                  */
2404                 ts->stat = TMF_RESP_FUNC_FAILED;
2405                 del_timer(&slot->internal_abort_timer);
2406                 goto out;
2407         default:
2408                 break;
2409         }
2410
2411         if ((complete_hdr->dw0 & CMPLT_HDR_ERX_MSK) &&
2412                 (!(complete_hdr->dw0 & CMPLT_HDR_RSPNS_XFRD_MSK))) {
2413                 u32 err_phase = (complete_hdr->dw0 & CMPLT_HDR_ERR_PHASE_MSK)
2414                                 >> CMPLT_HDR_ERR_PHASE_OFF;
2415                 u32 *error_info = hisi_sas_status_buf_addr_mem(slot);
2416
2417                 /* Analyse error happens on which phase TX or RX */
2418                 if (ERR_ON_TX_PHASE(err_phase))
2419                         slot_err_v2_hw(hisi_hba, task, slot, 1);
2420                 else if (ERR_ON_RX_PHASE(err_phase))
2421                         slot_err_v2_hw(hisi_hba, task, slot, 2);
2422
2423                 if (ts->stat != SAS_DATA_UNDERRUN)
2424                         dev_info(dev, "erroneous completion iptt=%d task=%p dev id=%d "
2425                                 "CQ hdr: 0x%x 0x%x 0x%x 0x%x "
2426                                 "Error info: 0x%x 0x%x 0x%x 0x%x\n",
2427                                 slot->idx, task, sas_dev->device_id,
2428                                 complete_hdr->dw0, complete_hdr->dw1,
2429                                 complete_hdr->act, complete_hdr->dw3,
2430                                 error_info[0], error_info[1],
2431                                 error_info[2], error_info[3]);
2432
2433                 if (unlikely(slot->abort))
2434                         return ts->stat;
2435                 goto out;
2436         }
2437
2438         switch (task->task_proto) {
2439         case SAS_PROTOCOL_SSP:
2440         {
2441                 struct hisi_sas_status_buffer *status_buffer =
2442                                 hisi_sas_status_buf_addr_mem(slot);
2443                 struct ssp_response_iu *iu = (struct ssp_response_iu *)
2444                                 &status_buffer->iu[0];
2445
2446                 sas_ssp_task_response(dev, task, iu);
2447                 break;
2448         }
2449         case SAS_PROTOCOL_SMP:
2450         {
2451                 struct scatterlist *sg_resp = &task->smp_task.smp_resp;
2452                 void *to;
2453
2454                 ts->stat = SAM_STAT_GOOD;
2455                 to = kmap_atomic(sg_page(sg_resp));
2456
2457                 dma_unmap_sg(dev, &task->smp_task.smp_resp, 1,
2458                              DMA_FROM_DEVICE);
2459                 dma_unmap_sg(dev, &task->smp_task.smp_req, 1,
2460                              DMA_TO_DEVICE);
2461                 memcpy(to + sg_resp->offset,
2462                        hisi_sas_status_buf_addr_mem(slot) +
2463                        sizeof(struct hisi_sas_err_record),
2464                        sg_dma_len(sg_resp));
2465                 kunmap_atomic(to);
2466                 break;
2467         }
2468         case SAS_PROTOCOL_SATA:
2469         case SAS_PROTOCOL_STP:
2470         case SAS_PROTOCOL_SATA | SAS_PROTOCOL_STP:
2471         {
2472                 ts->stat = SAM_STAT_GOOD;
2473                 hisi_sas_sata_done(task, slot);
2474                 break;
2475         }
2476         default:
2477                 ts->stat = SAM_STAT_CHECK_CONDITION;
2478                 break;
2479         }
2480
2481         if (!slot->port->port_attached) {
2482                 dev_warn(dev, "slot complete: port %d has removed\n",
2483                         slot->port->sas_port.id);
2484                 ts->stat = SAS_PHY_DOWN;
2485         }
2486
2487 out:
2488         sts = ts->stat;
2489         spin_lock_irqsave(&task->task_state_lock, flags);
2490         if (task->task_state_flags & SAS_TASK_STATE_ABORTED) {
2491                 spin_unlock_irqrestore(&task->task_state_lock, flags);
2492                 dev_info(dev, "slot complete: task(%p) aborted\n", task);
2493                 return SAS_ABORTED_TASK;
2494         }
2495         task->task_state_flags |= SAS_TASK_STATE_DONE;
2496         spin_unlock_irqrestore(&task->task_state_lock, flags);
2497         hisi_sas_slot_task_free(hisi_hba, task, slot);
2498
2499         if (!is_internal && (task->task_proto != SAS_PROTOCOL_SMP)) {
2500                 spin_lock_irqsave(&device->done_lock, flags);
2501                 if (test_bit(SAS_HA_FROZEN, &ha->state)) {
2502                         spin_unlock_irqrestore(&device->done_lock, flags);
2503                         dev_info(dev, "slot complete: task(%p) ignored\n ",
2504                                  task);
2505                         return sts;
2506                 }
2507                 spin_unlock_irqrestore(&device->done_lock, flags);
2508         }
2509
2510         if (task->task_done)
2511                 task->task_done(task);
2512
2513         return sts;
2514 }
2515
2516 static void prep_ata_v2_hw(struct hisi_hba *hisi_hba,
2517                           struct hisi_sas_slot *slot)
2518 {
2519         struct sas_task *task = slot->task;
2520         struct domain_device *device = task->dev;
2521         struct domain_device *parent_dev = device->parent;
2522         struct hisi_sas_device *sas_dev = device->lldd_dev;
2523         struct hisi_sas_cmd_hdr *hdr = slot->cmd_hdr;
2524         struct asd_sas_port *sas_port = device->port;
2525         struct hisi_sas_port *port = to_hisi_sas_port(sas_port);
2526         struct hisi_sas_tmf_task *tmf = slot->tmf;
2527         u8 *buf_cmd;
2528         int has_data = 0, hdr_tag = 0;
2529         u32 dw1 = 0, dw2 = 0;
2530
2531         /* create header */
2532         /* dw0 */
2533         hdr->dw0 = cpu_to_le32(port->id << CMD_HDR_PORT_OFF);
2534         if (parent_dev && DEV_IS_EXPANDER(parent_dev->dev_type))
2535                 hdr->dw0 |= cpu_to_le32(3 << CMD_HDR_CMD_OFF);
2536         else
2537                 hdr->dw0 |= cpu_to_le32(4 << CMD_HDR_CMD_OFF);
2538
2539         if (tmf && tmf->force_phy) {
2540                 hdr->dw0 |= CMD_HDR_FORCE_PHY_MSK;
2541                 hdr->dw0 |= cpu_to_le32((1 << tmf->phy_id)
2542                                 << CMD_HDR_PHY_ID_OFF);
2543         }
2544
2545         /* dw1 */
2546         switch (task->data_dir) {
2547         case DMA_TO_DEVICE:
2548                 has_data = 1;
2549                 dw1 |= DIR_TO_DEVICE << CMD_HDR_DIR_OFF;
2550                 break;
2551         case DMA_FROM_DEVICE:
2552                 has_data = 1;
2553                 dw1 |= DIR_TO_INI << CMD_HDR_DIR_OFF;
2554                 break;
2555         default:
2556                 dw1 &= ~CMD_HDR_DIR_MSK;
2557         }
2558
2559         if ((task->ata_task.fis.command == ATA_CMD_DEV_RESET) &&
2560                         (task->ata_task.fis.control & ATA_SRST))
2561                 dw1 |= 1 << CMD_HDR_RESET_OFF;
2562
2563         dw1 |= (hisi_sas_get_ata_protocol(
2564                 &task->ata_task.fis, task->data_dir))
2565                 << CMD_HDR_FRAME_TYPE_OFF;
2566         dw1 |= sas_dev->device_id << CMD_HDR_DEV_ID_OFF;
2567         hdr->dw1 = cpu_to_le32(dw1);
2568
2569         /* dw2 */
2570         if (task->ata_task.use_ncq && hisi_sas_get_ncq_tag(task, &hdr_tag)) {
2571                 task->ata_task.fis.sector_count |= (u8) (hdr_tag << 3);
2572                 dw2 |= hdr_tag << CMD_HDR_NCQ_TAG_OFF;
2573         }
2574
2575         dw2 |= (HISI_SAS_MAX_STP_RESP_SZ / 4) << CMD_HDR_CFL_OFF |
2576                         2 << CMD_HDR_SG_MOD_OFF;
2577         hdr->dw2 = cpu_to_le32(dw2);
2578
2579         /* dw3 */
2580         hdr->transfer_tags = cpu_to_le32(slot->idx);
2581
2582         if (has_data)
2583                 prep_prd_sge_v2_hw(hisi_hba, slot, hdr, task->scatter,
2584                                         slot->n_elem);
2585
2586         hdr->data_transfer_len = cpu_to_le32(task->total_xfer_len);
2587         hdr->cmd_table_addr = cpu_to_le64(hisi_sas_cmd_hdr_addr_dma(slot));
2588         hdr->sts_buffer_addr = cpu_to_le64(hisi_sas_status_buf_addr_dma(slot));
2589
2590         buf_cmd = hisi_sas_cmd_hdr_addr_mem(slot);
2591
2592         if (likely(!task->ata_task.device_control_reg_update))
2593                 task->ata_task.fis.flags |= 0x80; /* C=1: update ATA cmd reg */
2594         /* fill in command FIS */
2595         memcpy(buf_cmd, &task->ata_task.fis, sizeof(struct host_to_dev_fis));
2596 }
2597
2598 static void hisi_sas_internal_abort_quirk_timeout(struct timer_list *t)
2599 {
2600         struct hisi_sas_slot *slot = from_timer(slot, t, internal_abort_timer);
2601         struct hisi_sas_port *port = slot->port;
2602         struct asd_sas_port *asd_sas_port;
2603         struct asd_sas_phy *sas_phy;
2604
2605         if (!port)
2606                 return;
2607
2608         asd_sas_port = &port->sas_port;
2609
2610         /* Kick the hardware - send break command */
2611         list_for_each_entry(sas_phy, &asd_sas_port->phy_list, port_phy_el) {
2612                 struct hisi_sas_phy *phy = sas_phy->lldd_phy;
2613                 struct hisi_hba *hisi_hba = phy->hisi_hba;
2614                 int phy_no = sas_phy->id;
2615                 u32 link_dfx2;
2616
2617                 link_dfx2 = hisi_sas_phy_read32(hisi_hba, phy_no, LINK_DFX2);
2618                 if ((link_dfx2 == LINK_DFX2_RCVR_HOLD_STS_MSK) ||
2619                     (link_dfx2 & LINK_DFX2_SEND_HOLD_STS_MSK)) {
2620                         u32 txid_auto;
2621
2622                         txid_auto = hisi_sas_phy_read32(hisi_hba, phy_no,
2623                                                         TXID_AUTO);
2624                         txid_auto |= TXID_AUTO_CTB_MSK;
2625                         hisi_sas_phy_write32(hisi_hba, phy_no, TXID_AUTO,
2626                                              txid_auto);
2627                         return;
2628                 }
2629         }
2630 }
2631
2632 static void prep_abort_v2_hw(struct hisi_hba *hisi_hba,
2633                 struct hisi_sas_slot *slot,
2634                 int device_id, int abort_flag, int tag_to_abort)
2635 {
2636         struct sas_task *task = slot->task;
2637         struct domain_device *dev = task->dev;
2638         struct hisi_sas_cmd_hdr *hdr = slot->cmd_hdr;
2639         struct hisi_sas_port *port = slot->port;
2640         struct timer_list *timer = &slot->internal_abort_timer;
2641
2642         /* setup the quirk timer */
2643         timer_setup(timer, hisi_sas_internal_abort_quirk_timeout, 0);
2644         /* Set the timeout to 10ms less than internal abort timeout */
2645         mod_timer(timer, jiffies + msecs_to_jiffies(100));
2646
2647         /* dw0 */
2648         hdr->dw0 = cpu_to_le32((5 << CMD_HDR_CMD_OFF) | /*abort*/
2649                                (port->id << CMD_HDR_PORT_OFF) |
2650                                (dev_is_sata(dev) <<
2651                                 CMD_HDR_ABORT_DEVICE_TYPE_OFF) |
2652                                (abort_flag << CMD_HDR_ABORT_FLAG_OFF));
2653
2654         /* dw1 */
2655         hdr->dw1 = cpu_to_le32(device_id << CMD_HDR_DEV_ID_OFF);
2656
2657         /* dw7 */
2658         hdr->dw7 = cpu_to_le32(tag_to_abort << CMD_HDR_ABORT_IPTT_OFF);
2659         hdr->transfer_tags = cpu_to_le32(slot->idx);
2660 }
2661
2662 static int phy_up_v2_hw(int phy_no, struct hisi_hba *hisi_hba)
2663 {
2664         int i, res = IRQ_HANDLED;
2665         u32 port_id, link_rate;
2666         struct hisi_sas_phy *phy = &hisi_hba->phy[phy_no];
2667         struct asd_sas_phy *sas_phy = &phy->sas_phy;
2668         struct device *dev = hisi_hba->dev;
2669         u32 *frame_rcvd = (u32 *)sas_phy->frame_rcvd;
2670         struct sas_identify_frame *id = (struct sas_identify_frame *)frame_rcvd;
2671         unsigned long flags;
2672
2673         hisi_sas_phy_write32(hisi_hba, phy_no, PHYCTRL_PHY_ENA_MSK, 1);
2674
2675         if (is_sata_phy_v2_hw(hisi_hba, phy_no))
2676                 goto end;
2677
2678         if (phy_no == 8) {
2679                 u32 port_state = hisi_sas_read32(hisi_hba, PORT_STATE);
2680
2681                 port_id = (port_state & PORT_STATE_PHY8_PORT_NUM_MSK) >>
2682                           PORT_STATE_PHY8_PORT_NUM_OFF;
2683                 link_rate = (port_state & PORT_STATE_PHY8_CONN_RATE_MSK) >>
2684                             PORT_STATE_PHY8_CONN_RATE_OFF;
2685         } else {
2686                 port_id = hisi_sas_read32(hisi_hba, PHY_PORT_NUM_MA);
2687                 port_id = (port_id >> (4 * phy_no)) & 0xf;
2688                 link_rate = hisi_sas_read32(hisi_hba, PHY_CONN_RATE);
2689                 link_rate = (link_rate >> (phy_no * 4)) & 0xf;
2690         }
2691
2692         if (port_id == 0xf) {
2693                 dev_err(dev, "phyup: phy%d invalid portid\n", phy_no);
2694                 res = IRQ_NONE;
2695                 goto end;
2696         }
2697
2698         for (i = 0; i < 6; i++) {
2699                 u32 idaf = hisi_sas_phy_read32(hisi_hba, phy_no,
2700                                                RX_IDAF_DWORD0 + (i * 4));
2701                 frame_rcvd[i] = __swab32(idaf);
2702         }
2703
2704         sas_phy->linkrate = link_rate;
2705         sas_phy->oob_mode = SAS_OOB_MODE;
2706         memcpy(sas_phy->attached_sas_addr, &id->sas_addr, SAS_ADDR_SIZE);
2707         dev_info(dev, "phyup: phy%d link_rate=%d\n", phy_no, link_rate);
2708         phy->port_id = port_id;
2709         phy->phy_type &= ~(PORT_TYPE_SAS | PORT_TYPE_SATA);
2710         phy->phy_type |= PORT_TYPE_SAS;
2711         phy->phy_attached = 1;
2712         phy->identify.device_type = id->dev_type;
2713         phy->frame_rcvd_size =  sizeof(struct sas_identify_frame);
2714         if (phy->identify.device_type == SAS_END_DEVICE)
2715                 phy->identify.target_port_protocols =
2716                         SAS_PROTOCOL_SSP;
2717         else if (phy->identify.device_type != SAS_PHY_UNUSED) {
2718                 phy->identify.target_port_protocols =
2719                         SAS_PROTOCOL_SMP;
2720                 if (!timer_pending(&hisi_hba->timer))
2721                         set_link_timer_quirk(hisi_hba);
2722         }
2723         hisi_sas_notify_phy_event(phy, HISI_PHYE_PHY_UP);
2724         spin_lock_irqsave(&phy->lock, flags);
2725         if (phy->reset_completion) {
2726                 phy->in_reset = 0;
2727                 complete(phy->reset_completion);
2728         }
2729         spin_unlock_irqrestore(&phy->lock, flags);
2730
2731 end:
2732         hisi_sas_phy_write32(hisi_hba, phy_no, CHL_INT0,
2733                              CHL_INT0_SL_PHY_ENABLE_MSK);
2734         hisi_sas_phy_write32(hisi_hba, phy_no, PHYCTRL_PHY_ENA_MSK, 0);
2735
2736         return res;
2737 }
2738
2739 static bool check_any_wideports_v2_hw(struct hisi_hba *hisi_hba)
2740 {
2741         u32 port_state;
2742
2743         port_state = hisi_sas_read32(hisi_hba, PORT_STATE);
2744         if (port_state & 0x1ff)
2745                 return true;
2746
2747         return false;
2748 }
2749
2750 static int phy_down_v2_hw(int phy_no, struct hisi_hba *hisi_hba)
2751 {
2752         u32 phy_state, sl_ctrl, txid_auto;
2753         struct hisi_sas_phy *phy = &hisi_hba->phy[phy_no];
2754         struct hisi_sas_port *port = phy->port;
2755         struct device *dev = hisi_hba->dev;
2756
2757         hisi_sas_phy_write32(hisi_hba, phy_no, PHYCTRL_NOT_RDY_MSK, 1);
2758
2759         phy_state = hisi_sas_read32(hisi_hba, PHY_STATE);
2760         dev_info(dev, "phydown: phy%d phy_state=0x%x\n", phy_no, phy_state);
2761         hisi_sas_phy_down(hisi_hba, phy_no, (phy_state & 1 << phy_no) ? 1 : 0);
2762
2763         sl_ctrl = hisi_sas_phy_read32(hisi_hba, phy_no, SL_CONTROL);
2764         hisi_sas_phy_write32(hisi_hba, phy_no, SL_CONTROL,
2765                              sl_ctrl & ~SL_CONTROL_CTA_MSK);
2766         if (port && !get_wideport_bitmap_v2_hw(hisi_hba, port->id))
2767                 if (!check_any_wideports_v2_hw(hisi_hba) &&
2768                                 timer_pending(&hisi_hba->timer))
2769                         del_timer(&hisi_hba->timer);
2770
2771         txid_auto = hisi_sas_phy_read32(hisi_hba, phy_no, TXID_AUTO);
2772         hisi_sas_phy_write32(hisi_hba, phy_no, TXID_AUTO,
2773                              txid_auto | TXID_AUTO_CT3_MSK);
2774
2775         hisi_sas_phy_write32(hisi_hba, phy_no, CHL_INT0, CHL_INT0_NOT_RDY_MSK);
2776         hisi_sas_phy_write32(hisi_hba, phy_no, PHYCTRL_NOT_RDY_MSK, 0);
2777
2778         return IRQ_HANDLED;
2779 }
2780
2781 static irqreturn_t int_phy_updown_v2_hw(int irq_no, void *p)
2782 {
2783         struct hisi_hba *hisi_hba = p;
2784         u32 irq_msk;
2785         int phy_no = 0;
2786         irqreturn_t res = IRQ_NONE;
2787
2788         irq_msk = (hisi_sas_read32(hisi_hba, HGC_INVLD_DQE_INFO)
2789                    >> HGC_INVLD_DQE_INFO_FB_CH0_OFF) & 0x1ff;
2790         while (irq_msk) {
2791                 if (irq_msk  & 1) {
2792                         u32 reg_value = hisi_sas_phy_read32(hisi_hba, phy_no,
2793                                             CHL_INT0);
2794
2795                         switch (reg_value & (CHL_INT0_NOT_RDY_MSK |
2796                                         CHL_INT0_SL_PHY_ENABLE_MSK)) {
2797
2798                         case CHL_INT0_SL_PHY_ENABLE_MSK:
2799                                 /* phy up */
2800                                 if (phy_up_v2_hw(phy_no, hisi_hba) ==
2801                                     IRQ_HANDLED)
2802                                         res = IRQ_HANDLED;
2803                                 break;
2804
2805                         case CHL_INT0_NOT_RDY_MSK:
2806                                 /* phy down */
2807                                 if (phy_down_v2_hw(phy_no, hisi_hba) ==
2808                                     IRQ_HANDLED)
2809                                         res = IRQ_HANDLED;
2810                                 break;
2811
2812                         case (CHL_INT0_NOT_RDY_MSK |
2813                                         CHL_INT0_SL_PHY_ENABLE_MSK):
2814                                 reg_value = hisi_sas_read32(hisi_hba,
2815                                                 PHY_STATE);
2816                                 if (reg_value & BIT(phy_no)) {
2817                                         /* phy up */
2818                                         if (phy_up_v2_hw(phy_no, hisi_hba) ==
2819                                             IRQ_HANDLED)
2820                                                 res = IRQ_HANDLED;
2821                                 } else {
2822                                         /* phy down */
2823                                         if (phy_down_v2_hw(phy_no, hisi_hba) ==
2824                                             IRQ_HANDLED)
2825                                                 res = IRQ_HANDLED;
2826                                 }
2827                                 break;
2828
2829                         default:
2830                                 break;
2831                         }
2832
2833                 }
2834                 irq_msk >>= 1;
2835                 phy_no++;
2836         }
2837
2838         return res;
2839 }
2840
2841 static void phy_bcast_v2_hw(int phy_no, struct hisi_hba *hisi_hba)
2842 {
2843         struct hisi_sas_phy *phy = &hisi_hba->phy[phy_no];
2844         struct asd_sas_phy *sas_phy = &phy->sas_phy;
2845         struct sas_ha_struct *sas_ha = &hisi_hba->sha;
2846         u32 bcast_status;
2847
2848         hisi_sas_phy_write32(hisi_hba, phy_no, SL_RX_BCAST_CHK_MSK, 1);
2849         bcast_status = hisi_sas_phy_read32(hisi_hba, phy_no, RX_PRIMS_STATUS);
2850         if ((bcast_status & RX_BCAST_CHG_MSK) &&
2851             !test_bit(HISI_SAS_RESET_BIT, &hisi_hba->flags))
2852                 sas_ha->notify_port_event(sas_phy, PORTE_BROADCAST_RCVD);
2853         hisi_sas_phy_write32(hisi_hba, phy_no, CHL_INT0,
2854                              CHL_INT0_SL_RX_BCST_ACK_MSK);
2855         hisi_sas_phy_write32(hisi_hba, phy_no, SL_RX_BCAST_CHK_MSK, 0);
2856 }
2857
2858 static const struct hisi_sas_hw_error port_ecc_axi_error[] = {
2859         {
2860                 .irq_msk = BIT(CHL_INT1_DMAC_TX_ECC_ERR_OFF),
2861                 .msg = "dmac_tx_ecc_bad_err",
2862         },
2863         {
2864                 .irq_msk = BIT(CHL_INT1_DMAC_RX_ECC_ERR_OFF),
2865                 .msg = "dmac_rx_ecc_bad_err",
2866         },
2867         {
2868                 .irq_msk = BIT(CHL_INT1_DMAC_TX_AXI_WR_ERR_OFF),
2869                 .msg = "dma_tx_axi_wr_err",
2870         },
2871         {
2872                 .irq_msk = BIT(CHL_INT1_DMAC_TX_AXI_RD_ERR_OFF),
2873                 .msg = "dma_tx_axi_rd_err",
2874         },
2875         {
2876                 .irq_msk = BIT(CHL_INT1_DMAC_RX_AXI_WR_ERR_OFF),
2877                 .msg = "dma_rx_axi_wr_err",
2878         },
2879         {
2880                 .irq_msk = BIT(CHL_INT1_DMAC_RX_AXI_RD_ERR_OFF),
2881                 .msg = "dma_rx_axi_rd_err",
2882         },
2883 };
2884
2885 static irqreturn_t int_chnl_int_v2_hw(int irq_no, void *p)
2886 {
2887         struct hisi_hba *hisi_hba = p;
2888         struct device *dev = hisi_hba->dev;
2889         u32 ent_msk, ent_tmp, irq_msk;
2890         int phy_no = 0;
2891
2892         ent_msk = hisi_sas_read32(hisi_hba, ENT_INT_SRC_MSK3);
2893         ent_tmp = ent_msk;
2894         ent_msk |= ENT_INT_SRC_MSK3_ENT95_MSK_MSK;
2895         hisi_sas_write32(hisi_hba, ENT_INT_SRC_MSK3, ent_msk);
2896
2897         irq_msk = (hisi_sas_read32(hisi_hba, HGC_INVLD_DQE_INFO) >>
2898                         HGC_INVLD_DQE_INFO_FB_CH3_OFF) & 0x1ff;
2899
2900         while (irq_msk) {
2901                 u32 irq_value0 = hisi_sas_phy_read32(hisi_hba, phy_no,
2902                                                      CHL_INT0);
2903                 u32 irq_value1 = hisi_sas_phy_read32(hisi_hba, phy_no,
2904                                                      CHL_INT1);
2905                 u32 irq_value2 = hisi_sas_phy_read32(hisi_hba, phy_no,
2906                                                      CHL_INT2);
2907
2908                 if ((irq_msk & (1 << phy_no)) && irq_value1) {
2909                         int i;
2910
2911                         for (i = 0; i < ARRAY_SIZE(port_ecc_axi_error); i++) {
2912                                 const struct hisi_sas_hw_error *error =
2913                                                 &port_ecc_axi_error[i];
2914
2915                                 if (!(irq_value1 & error->irq_msk))
2916                                         continue;
2917
2918                                 dev_warn(dev, "%s error (phy%d 0x%x) found!\n",
2919                                         error->msg, phy_no, irq_value1);
2920                                 queue_work(hisi_hba->wq, &hisi_hba->rst_work);
2921                         }
2922
2923                         hisi_sas_phy_write32(hisi_hba, phy_no,
2924                                              CHL_INT1, irq_value1);
2925                 }
2926
2927                 if ((irq_msk & (1 << phy_no)) && irq_value2) {
2928                         struct hisi_sas_phy *phy = &hisi_hba->phy[phy_no];
2929
2930                         if (irq_value2 & BIT(CHL_INT2_SL_IDAF_TOUT_CONF_OFF)) {
2931                                 dev_warn(dev, "phy%d identify timeout\n",
2932                                                 phy_no);
2933                                 hisi_sas_notify_phy_event(phy,
2934                                                 HISI_PHYE_LINK_RESET);
2935                         }
2936
2937                         hisi_sas_phy_write32(hisi_hba, phy_no,
2938                                                  CHL_INT2, irq_value2);
2939                 }
2940
2941                 if ((irq_msk & (1 << phy_no)) && irq_value0) {
2942                         if (irq_value0 & CHL_INT0_SL_RX_BCST_ACK_MSK)
2943                                 phy_bcast_v2_hw(phy_no, hisi_hba);
2944
2945                         hisi_sas_phy_write32(hisi_hba, phy_no,
2946                                         CHL_INT0, irq_value0
2947                                         & (~CHL_INT0_HOTPLUG_TOUT_MSK)
2948                                         & (~CHL_INT0_SL_PHY_ENABLE_MSK)
2949                                         & (~CHL_INT0_NOT_RDY_MSK));
2950                 }
2951                 irq_msk &= ~(1 << phy_no);
2952                 phy_no++;
2953         }
2954
2955         hisi_sas_write32(hisi_hba, ENT_INT_SRC_MSK3, ent_tmp);
2956
2957         return IRQ_HANDLED;
2958 }
2959
2960 static void
2961 one_bit_ecc_error_process_v2_hw(struct hisi_hba *hisi_hba, u32 irq_value)
2962 {
2963         struct device *dev = hisi_hba->dev;
2964         const struct hisi_sas_hw_error *ecc_error;
2965         u32 val;
2966         int i;
2967
2968         for (i = 0; i < ARRAY_SIZE(one_bit_ecc_errors); i++) {
2969                 ecc_error = &one_bit_ecc_errors[i];
2970                 if (irq_value & ecc_error->irq_msk) {
2971                         val = hisi_sas_read32(hisi_hba, ecc_error->reg);
2972                         val &= ecc_error->msk;
2973                         val >>= ecc_error->shift;
2974                         dev_warn(dev, ecc_error->msg, val);
2975                 }
2976         }
2977 }
2978
2979 static void multi_bit_ecc_error_process_v2_hw(struct hisi_hba *hisi_hba,
2980                 u32 irq_value)
2981 {
2982         struct device *dev = hisi_hba->dev;
2983         const struct hisi_sas_hw_error *ecc_error;
2984         u32 val;
2985         int i;
2986
2987         for (i = 0; i < ARRAY_SIZE(multi_bit_ecc_errors); i++) {
2988                 ecc_error = &multi_bit_ecc_errors[i];
2989                 if (irq_value & ecc_error->irq_msk) {
2990                         val = hisi_sas_read32(hisi_hba, ecc_error->reg);
2991                         val &= ecc_error->msk;
2992                         val >>= ecc_error->shift;
2993                         dev_err(dev, ecc_error->msg, irq_value, val);
2994                         queue_work(hisi_hba->wq, &hisi_hba->rst_work);
2995                 }
2996         }
2997
2998         return;
2999 }
3000
3001 static irqreturn_t fatal_ecc_int_v2_hw(int irq_no, void *p)
3002 {
3003         struct hisi_hba *hisi_hba = p;
3004         u32 irq_value, irq_msk;
3005
3006         irq_msk = hisi_sas_read32(hisi_hba, SAS_ECC_INTR_MSK);
3007         hisi_sas_write32(hisi_hba, SAS_ECC_INTR_MSK, irq_msk | 0xffffffff);
3008
3009         irq_value = hisi_sas_read32(hisi_hba, SAS_ECC_INTR);
3010         if (irq_value) {
3011                 one_bit_ecc_error_process_v2_hw(hisi_hba, irq_value);
3012                 multi_bit_ecc_error_process_v2_hw(hisi_hba, irq_value);
3013         }
3014
3015         hisi_sas_write32(hisi_hba, SAS_ECC_INTR, irq_value);
3016         hisi_sas_write32(hisi_hba, SAS_ECC_INTR_MSK, irq_msk);
3017
3018         return IRQ_HANDLED;
3019 }
3020
3021 static const struct hisi_sas_hw_error axi_error[] = {
3022         { .msk = BIT(0), .msg = "IOST_AXI_W_ERR" },
3023         { .msk = BIT(1), .msg = "IOST_AXI_R_ERR" },
3024         { .msk = BIT(2), .msg = "ITCT_AXI_W_ERR" },
3025         { .msk = BIT(3), .msg = "ITCT_AXI_R_ERR" },
3026         { .msk = BIT(4), .msg = "SATA_AXI_W_ERR" },
3027         { .msk = BIT(5), .msg = "SATA_AXI_R_ERR" },
3028         { .msk = BIT(6), .msg = "DQE_AXI_R_ERR" },
3029         { .msk = BIT(7), .msg = "CQE_AXI_W_ERR" },
3030         {},
3031 };
3032
3033 static const struct hisi_sas_hw_error fifo_error[] = {
3034         { .msk = BIT(8),  .msg = "CQE_WINFO_FIFO" },
3035         { .msk = BIT(9),  .msg = "CQE_MSG_FIFIO" },
3036         { .msk = BIT(10), .msg = "GETDQE_FIFO" },
3037         { .msk = BIT(11), .msg = "CMDP_FIFO" },
3038         { .msk = BIT(12), .msg = "AWTCTRL_FIFO" },
3039         {},
3040 };
3041
3042 static const struct hisi_sas_hw_error fatal_axi_errors[] = {
3043         {
3044                 .irq_msk = BIT(ENT_INT_SRC3_WP_DEPTH_OFF),
3045                 .msg = "write pointer and depth",
3046         },
3047         {
3048                 .irq_msk = BIT(ENT_INT_SRC3_IPTT_SLOT_NOMATCH_OFF),
3049                 .msg = "iptt no match slot",
3050         },
3051         {
3052                 .irq_msk = BIT(ENT_INT_SRC3_RP_DEPTH_OFF),
3053                 .msg = "read pointer and depth",
3054         },
3055         {
3056                 .irq_msk = BIT(ENT_INT_SRC3_AXI_OFF),
3057                 .reg = HGC_AXI_FIFO_ERR_INFO,
3058                 .sub = axi_error,
3059         },
3060         {
3061                 .irq_msk = BIT(ENT_INT_SRC3_FIFO_OFF),
3062                 .reg = HGC_AXI_FIFO_ERR_INFO,
3063                 .sub = fifo_error,
3064         },
3065         {
3066                 .irq_msk = BIT(ENT_INT_SRC3_LM_OFF),
3067                 .msg = "LM add/fetch list",
3068         },
3069         {
3070                 .irq_msk = BIT(ENT_INT_SRC3_ABT_OFF),
3071                 .msg = "SAS_HGC_ABT fetch LM list",
3072         },
3073 };
3074
3075 static irqreturn_t fatal_axi_int_v2_hw(int irq_no, void *p)
3076 {
3077         struct hisi_hba *hisi_hba = p;
3078         u32 irq_value, irq_msk, err_value;
3079         struct device *dev = hisi_hba->dev;
3080         const struct hisi_sas_hw_error *axi_error;
3081         int i;
3082
3083         irq_msk = hisi_sas_read32(hisi_hba, ENT_INT_SRC_MSK3);
3084         hisi_sas_write32(hisi_hba, ENT_INT_SRC_MSK3, irq_msk | 0xfffffffe);
3085
3086         irq_value = hisi_sas_read32(hisi_hba, ENT_INT_SRC3);
3087
3088         for (i = 0; i < ARRAY_SIZE(fatal_axi_errors); i++) {
3089                 axi_error = &fatal_axi_errors[i];
3090                 if (!(irq_value & axi_error->irq_msk))
3091                         continue;
3092
3093                 hisi_sas_write32(hisi_hba, ENT_INT_SRC3,
3094                                  1 << axi_error->shift);
3095                 if (axi_error->sub) {
3096                         const struct hisi_sas_hw_error *sub = axi_error->sub;
3097
3098                         err_value = hisi_sas_read32(hisi_hba, axi_error->reg);
3099                         for (; sub->msk || sub->msg; sub++) {
3100                                 if (!(err_value & sub->msk))
3101                                         continue;
3102                                 dev_err(dev, "%s (0x%x) found!\n",
3103                                          sub->msg, irq_value);
3104                                 queue_work(hisi_hba->wq, &hisi_hba->rst_work);
3105                         }
3106                 } else {
3107                         dev_err(dev, "%s (0x%x) found!\n",
3108                                  axi_error->msg, irq_value);
3109                         queue_work(hisi_hba->wq, &hisi_hba->rst_work);
3110                 }
3111         }
3112
3113         if (irq_value & BIT(ENT_INT_SRC3_ITC_INT_OFF)) {
3114                 u32 reg_val = hisi_sas_read32(hisi_hba, ITCT_CLR);
3115                 u32 dev_id = reg_val & ITCT_DEV_MSK;
3116                 struct hisi_sas_device *sas_dev = &hisi_hba->devices[dev_id];
3117
3118                 hisi_sas_write32(hisi_hba, ITCT_CLR, 0);
3119                 dev_dbg(dev, "clear ITCT ok\n");
3120                 complete(sas_dev->completion);
3121         }
3122
3123         hisi_sas_write32(hisi_hba, ENT_INT_SRC3, irq_value);
3124         hisi_sas_write32(hisi_hba, ENT_INT_SRC_MSK3, irq_msk);
3125
3126         return IRQ_HANDLED;
3127 }
3128
3129 static void cq_tasklet_v2_hw(unsigned long val)
3130 {
3131         struct hisi_sas_cq *cq = (struct hisi_sas_cq *)val;
3132         struct hisi_hba *hisi_hba = cq->hisi_hba;
3133         struct hisi_sas_slot *slot;
3134         struct hisi_sas_itct *itct;
3135         struct hisi_sas_complete_v2_hdr *complete_queue;
3136         u32 rd_point = cq->rd_point, wr_point, dev_id;
3137         int queue = cq->id;
3138
3139         if (unlikely(hisi_hba->reject_stp_links_msk))
3140                 phys_try_accept_stp_links_v2_hw(hisi_hba);
3141
3142         complete_queue = hisi_hba->complete_hdr[queue];
3143
3144         wr_point = hisi_sas_read32(hisi_hba, COMPL_Q_0_WR_PTR +
3145                                    (0x14 * queue));
3146
3147         while (rd_point != wr_point) {
3148                 struct hisi_sas_complete_v2_hdr *complete_hdr;
3149                 int iptt;
3150
3151                 complete_hdr = &complete_queue[rd_point];
3152
3153                 /* Check for NCQ completion */
3154                 if (complete_hdr->act) {
3155                         u32 act_tmp = complete_hdr->act;
3156                         int ncq_tag_count = ffs(act_tmp);
3157
3158                         dev_id = (complete_hdr->dw1 & CMPLT_HDR_DEV_ID_MSK) >>
3159                                  CMPLT_HDR_DEV_ID_OFF;
3160                         itct = &hisi_hba->itct[dev_id];
3161
3162                         /* The NCQ tags are held in the itct header */
3163                         while (ncq_tag_count) {
3164                                 __le64 *ncq_tag = &itct->qw4_15[0];
3165
3166                                 ncq_tag_count -= 1;
3167                                 iptt = (ncq_tag[ncq_tag_count / 5]
3168                                         >> (ncq_tag_count % 5) * 12) & 0xfff;
3169
3170                                 slot = &hisi_hba->slot_info[iptt];
3171                                 slot->cmplt_queue_slot = rd_point;
3172                                 slot->cmplt_queue = queue;
3173                                 slot_complete_v2_hw(hisi_hba, slot);
3174
3175                                 act_tmp &= ~(1 << ncq_tag_count);
3176                                 ncq_tag_count = ffs(act_tmp);
3177                         }
3178                 } else {
3179                         iptt = (complete_hdr->dw1) & CMPLT_HDR_IPTT_MSK;
3180                         slot = &hisi_hba->slot_info[iptt];
3181                         slot->cmplt_queue_slot = rd_point;
3182                         slot->cmplt_queue = queue;
3183                         slot_complete_v2_hw(hisi_hba, slot);
3184                 }
3185
3186                 if (++rd_point >= HISI_SAS_QUEUE_SLOTS)
3187                         rd_point = 0;
3188         }
3189
3190         /* update rd_point */
3191         cq->rd_point = rd_point;
3192         hisi_sas_write32(hisi_hba, COMPL_Q_0_RD_PTR + (0x14 * queue), rd_point);
3193 }
3194
3195 static irqreturn_t cq_interrupt_v2_hw(int irq_no, void *p)
3196 {
3197         struct hisi_sas_cq *cq = p;
3198         struct hisi_hba *hisi_hba = cq->hisi_hba;
3199         int queue = cq->id;
3200
3201         hisi_sas_write32(hisi_hba, OQ_INT_SRC, 1 << queue);
3202
3203         tasklet_schedule(&cq->tasklet);
3204
3205         return IRQ_HANDLED;
3206 }
3207
3208 static irqreturn_t sata_int_v2_hw(int irq_no, void *p)
3209 {
3210         struct hisi_sas_phy *phy = p;
3211         struct hisi_hba *hisi_hba = phy->hisi_hba;
3212         struct asd_sas_phy *sas_phy = &phy->sas_phy;
3213         struct device *dev = hisi_hba->dev;
3214         struct  hisi_sas_initial_fis *initial_fis;
3215         struct dev_to_host_fis *fis;
3216         u32 ent_tmp, ent_msk, ent_int, port_id, link_rate, hard_phy_linkrate;
3217         irqreturn_t res = IRQ_HANDLED;
3218         u8 attached_sas_addr[SAS_ADDR_SIZE] = {0};
3219         unsigned long flags;
3220         int phy_no, offset;
3221
3222         phy_no = sas_phy->id;
3223         initial_fis = &hisi_hba->initial_fis[phy_no];
3224         fis = &initial_fis->fis;
3225
3226         offset = 4 * (phy_no / 4);
3227         ent_msk = hisi_sas_read32(hisi_hba, ENT_INT_SRC_MSK1 + offset);
3228         hisi_sas_write32(hisi_hba, ENT_INT_SRC_MSK1 + offset,
3229                          ent_msk | 1 << ((phy_no % 4) * 8));
3230
3231         ent_int = hisi_sas_read32(hisi_hba, ENT_INT_SRC1 + offset);
3232         ent_tmp = ent_int & (1 << (ENT_INT_SRC1_D2H_FIS_CH1_OFF *
3233                              (phy_no % 4)));
3234         ent_int >>= ENT_INT_SRC1_D2H_FIS_CH1_OFF * (phy_no % 4);
3235         if ((ent_int & ENT_INT_SRC1_D2H_FIS_CH0_MSK) == 0) {
3236                 dev_warn(dev, "sata int: phy%d did not receive FIS\n", phy_no);
3237                 res = IRQ_NONE;
3238                 goto end;
3239         }
3240
3241         /* check ERR bit of Status Register */
3242         if (fis->status & ATA_ERR) {
3243                 dev_warn(dev, "sata int: phy%d FIS status: 0x%x\n", phy_no,
3244                                 fis->status);
3245                 hisi_sas_notify_phy_event(phy, HISI_PHYE_LINK_RESET);
3246                 res = IRQ_NONE;
3247                 goto end;
3248         }
3249
3250         if (unlikely(phy_no == 8)) {
3251                 u32 port_state = hisi_sas_read32(hisi_hba, PORT_STATE);
3252
3253                 port_id = (port_state & PORT_STATE_PHY8_PORT_NUM_MSK) >>
3254                           PORT_STATE_PHY8_PORT_NUM_OFF;
3255                 link_rate = (port_state & PORT_STATE_PHY8_CONN_RATE_MSK) >>
3256                             PORT_STATE_PHY8_CONN_RATE_OFF;
3257         } else {
3258                 port_id = hisi_sas_read32(hisi_hba, PHY_PORT_NUM_MA);
3259                 port_id = (port_id >> (4 * phy_no)) & 0xf;
3260                 link_rate = hisi_sas_read32(hisi_hba, PHY_CONN_RATE);
3261                 link_rate = (link_rate >> (phy_no * 4)) & 0xf;
3262         }
3263
3264         if (port_id == 0xf) {
3265                 dev_err(dev, "sata int: phy%d invalid portid\n", phy_no);
3266                 res = IRQ_NONE;
3267                 goto end;
3268         }
3269
3270         sas_phy->linkrate = link_rate;
3271         hard_phy_linkrate = hisi_sas_phy_read32(hisi_hba, phy_no,
3272                                                 HARD_PHY_LINKRATE);
3273         phy->maximum_linkrate = hard_phy_linkrate & 0xf;
3274         phy->minimum_linkrate = (hard_phy_linkrate >> 4) & 0xf;
3275
3276         sas_phy->oob_mode = SATA_OOB_MODE;
3277         /* Make up some unique SAS address */
3278         attached_sas_addr[0] = 0x50;
3279         attached_sas_addr[6] = hisi_hba->shost->host_no;
3280         attached_sas_addr[7] = phy_no;
3281         memcpy(sas_phy->attached_sas_addr, attached_sas_addr, SAS_ADDR_SIZE);
3282         memcpy(sas_phy->frame_rcvd, fis, sizeof(struct dev_to_host_fis));
3283         dev_info(dev, "sata int phyup: phy%d link_rate=%d\n", phy_no, link_rate);
3284         phy->phy_type &= ~(PORT_TYPE_SAS | PORT_TYPE_SATA);
3285         phy->port_id = port_id;
3286         phy->phy_type |= PORT_TYPE_SATA;
3287         phy->phy_attached = 1;
3288         phy->identify.device_type = SAS_SATA_DEV;
3289         phy->frame_rcvd_size = sizeof(struct dev_to_host_fis);
3290         phy->identify.target_port_protocols = SAS_PROTOCOL_SATA;
3291         hisi_sas_notify_phy_event(phy, HISI_PHYE_PHY_UP);
3292
3293         spin_lock_irqsave(&phy->lock, flags);
3294         if (phy->reset_completion) {
3295                 phy->in_reset = 0;
3296                 complete(phy->reset_completion);
3297         }
3298         spin_unlock_irqrestore(&phy->lock, flags);
3299 end:
3300         hisi_sas_write32(hisi_hba, ENT_INT_SRC1 + offset, ent_tmp);
3301         hisi_sas_write32(hisi_hba, ENT_INT_SRC_MSK1 + offset, ent_msk);
3302
3303         return res;
3304 }
3305
3306 static irq_handler_t phy_interrupts[HISI_SAS_PHY_INT_NR] = {
3307         int_phy_updown_v2_hw,
3308         int_chnl_int_v2_hw,
3309 };
3310
3311 static irq_handler_t fatal_interrupts[HISI_SAS_FATAL_INT_NR] = {
3312         fatal_ecc_int_v2_hw,
3313         fatal_axi_int_v2_hw
3314 };
3315
3316 /**
3317  * There is a limitation in the hip06 chipset that we need
3318  * to map in all mbigen interrupts, even if they are not used.
3319  */
3320 static int interrupt_init_v2_hw(struct hisi_hba *hisi_hba)
3321 {
3322         struct platform_device *pdev = hisi_hba->platform_dev;
3323         struct device *dev = &pdev->dev;
3324         int irq, rc, irq_map[128];
3325         int i, phy_no, fatal_no, queue_no, k;
3326
3327         for (i = 0; i < 128; i++)
3328                 irq_map[i] = platform_get_irq(pdev, i);
3329
3330         for (i = 0; i < HISI_SAS_PHY_INT_NR; i++) {
3331                 irq = irq_map[i + 1]; /* Phy up/down is irq1 */
3332                 rc = devm_request_irq(dev, irq, phy_interrupts[i], 0,
3333                                       DRV_NAME " phy", hisi_hba);
3334                 if (rc) {
3335                         dev_err(dev, "irq init: could not request "
3336                                 "phy interrupt %d, rc=%d\n",
3337                                 irq, rc);
3338                         rc = -ENOENT;
3339                         goto free_phy_int_irqs;
3340                 }
3341         }
3342
3343         for (phy_no = 0; phy_no < hisi_hba->n_phy; phy_no++) {
3344                 struct hisi_sas_phy *phy = &hisi_hba->phy[phy_no];
3345
3346                 irq = irq_map[phy_no + 72];
3347                 rc = devm_request_irq(dev, irq, sata_int_v2_hw, 0,
3348                                       DRV_NAME " sata", phy);
3349                 if (rc) {
3350                         dev_err(dev, "irq init: could not request "
3351                                 "sata interrupt %d, rc=%d\n",
3352                                 irq, rc);
3353                         rc = -ENOENT;
3354                         goto free_sata_int_irqs;
3355                 }
3356         }
3357
3358         for (fatal_no = 0; fatal_no < HISI_SAS_FATAL_INT_NR; fatal_no++) {
3359                 irq = irq_map[fatal_no + 81];
3360                 rc = devm_request_irq(dev, irq, fatal_interrupts[fatal_no], 0,
3361                                       DRV_NAME " fatal", hisi_hba);
3362                 if (rc) {
3363                         dev_err(dev,
3364                                 "irq init: could not request fatal interrupt %d, rc=%d\n",
3365                                 irq, rc);
3366                         rc = -ENOENT;
3367                         goto free_fatal_int_irqs;
3368                 }
3369         }
3370
3371         for (queue_no = 0; queue_no < hisi_hba->queue_count; queue_no++) {
3372                 struct hisi_sas_cq *cq = &hisi_hba->cq[queue_no];
3373                 struct tasklet_struct *t = &cq->tasklet;
3374
3375                 irq = irq_map[queue_no + 96];
3376                 rc = devm_request_irq(dev, irq, cq_interrupt_v2_hw, 0,
3377                                       DRV_NAME " cq", cq);
3378                 if (rc) {
3379                         dev_err(dev,
3380                                 "irq init: could not request cq interrupt %d, rc=%d\n",
3381                                 irq, rc);
3382                         rc = -ENOENT;
3383                         goto free_cq_int_irqs;
3384                 }
3385                 tasklet_init(t, cq_tasklet_v2_hw, (unsigned long)cq);
3386         }
3387
3388         return 0;
3389
3390 free_cq_int_irqs:
3391         for (k = 0; k < queue_no; k++) {
3392                 struct hisi_sas_cq *cq = &hisi_hba->cq[k];
3393
3394                 free_irq(irq_map[k + 96], cq);
3395                 tasklet_kill(&cq->tasklet);
3396         }
3397 free_fatal_int_irqs:
3398         for (k = 0; k < fatal_no; k++)
3399                 free_irq(irq_map[k + 81], hisi_hba);
3400 free_sata_int_irqs:
3401         for (k = 0; k < phy_no; k++) {
3402                 struct hisi_sas_phy *phy = &hisi_hba->phy[k];
3403
3404                 free_irq(irq_map[k + 72], phy);
3405         }
3406 free_phy_int_irqs:
3407         for (k = 0; k < i; k++)
3408                 free_irq(irq_map[k + 1], hisi_hba);
3409         return rc;
3410 }
3411
3412 static int hisi_sas_v2_init(struct hisi_hba *hisi_hba)
3413 {
3414         int rc;
3415
3416         memset(hisi_hba->sata_dev_bitmap, 0, sizeof(hisi_hba->sata_dev_bitmap));
3417
3418         rc = hw_init_v2_hw(hisi_hba);
3419         if (rc)
3420                 return rc;
3421
3422         rc = interrupt_init_v2_hw(hisi_hba);
3423         if (rc)
3424                 return rc;
3425
3426         return 0;
3427 }
3428
3429 static void interrupt_disable_v2_hw(struct hisi_hba *hisi_hba)
3430 {
3431         struct platform_device *pdev = hisi_hba->platform_dev;
3432         int i;
3433
3434         for (i = 0; i < hisi_hba->queue_count; i++)
3435                 hisi_sas_write32(hisi_hba, OQ0_INT_SRC_MSK + 0x4 * i, 0x1);
3436
3437         hisi_sas_write32(hisi_hba, ENT_INT_SRC_MSK1, 0xffffffff);
3438         hisi_sas_write32(hisi_hba, ENT_INT_SRC_MSK2, 0xffffffff);
3439         hisi_sas_write32(hisi_hba, ENT_INT_SRC_MSK3, 0xffffffff);
3440         hisi_sas_write32(hisi_hba, SAS_ECC_INTR_MSK, 0xffffffff);
3441
3442         for (i = 0; i < hisi_hba->n_phy; i++) {
3443                 hisi_sas_phy_write32(hisi_hba, i, CHL_INT1_MSK, 0xffffffff);
3444                 hisi_sas_phy_write32(hisi_hba, i, CHL_INT2_MSK, 0xffffffff);
3445         }
3446
3447         for (i = 0; i < 128; i++)
3448                 synchronize_irq(platform_get_irq(pdev, i));
3449 }
3450
3451
3452 static u32 get_phys_state_v2_hw(struct hisi_hba *hisi_hba)
3453 {
3454         return hisi_sas_read32(hisi_hba, PHY_STATE);
3455 }
3456
3457 static int soft_reset_v2_hw(struct hisi_hba *hisi_hba)
3458 {
3459         struct device *dev = hisi_hba->dev;
3460         int rc, cnt;
3461
3462         interrupt_disable_v2_hw(hisi_hba);
3463         hisi_sas_write32(hisi_hba, DLVRY_QUEUE_ENABLE, 0x0);
3464         hisi_sas_kill_tasklets(hisi_hba);
3465
3466         hisi_sas_stop_phys(hisi_hba);
3467
3468         mdelay(10);
3469
3470         hisi_sas_write32(hisi_hba, AXI_MASTER_CFG_BASE + AM_CTRL_GLOBAL, 0x1);
3471
3472         /* wait until bus idle */
3473         cnt = 0;
3474         while (1) {
3475                 u32 status = hisi_sas_read32_relaxed(hisi_hba,
3476                                 AXI_MASTER_CFG_BASE + AM_CURR_TRANS_RETURN);
3477
3478                 if (status == 0x3)
3479                         break;
3480
3481                 udelay(10);
3482                 if (cnt++ > 10) {
3483                         dev_err(dev, "wait axi bus state to idle timeout!\n");
3484                         return -1;
3485                 }
3486         }
3487
3488         hisi_sas_init_mem(hisi_hba);
3489
3490         rc = hw_init_v2_hw(hisi_hba);
3491         if (rc)
3492                 return rc;
3493
3494         phys_reject_stp_links_v2_hw(hisi_hba);
3495
3496         return 0;
3497 }
3498
3499 static int write_gpio_v2_hw(struct hisi_hba *hisi_hba, u8 reg_type,
3500                         u8 reg_index, u8 reg_count, u8 *write_data)
3501 {
3502         struct device *dev = hisi_hba->dev;
3503         int phy_no, count;
3504
3505         if (!hisi_hba->sgpio_regs)
3506                 return -EOPNOTSUPP;
3507
3508         switch (reg_type) {
3509         case SAS_GPIO_REG_TX:
3510                 count = reg_count * 4;
3511                 count = min(count, hisi_hba->n_phy);
3512
3513                 for (phy_no = 0; phy_no < count; phy_no++) {
3514                         /*
3515                          * GPIO_TX[n] register has the highest numbered drive
3516                          * of the four in the first byte and the lowest
3517                          * numbered drive in the fourth byte.
3518                          * See SFF-8485 Rev. 0.7 Table 24.
3519                          */
3520                         void __iomem  *reg_addr = hisi_hba->sgpio_regs +
3521                                         reg_index * 4 + phy_no;
3522                         int data_idx = phy_no + 3 - (phy_no % 4) * 2;
3523
3524                         writeb(write_data[data_idx], reg_addr);
3525                 }
3526
3527                 break;
3528         default:
3529                 dev_err(dev, "write gpio: unsupported or bad reg type %d\n",
3530                                 reg_type);
3531                 return -EINVAL;
3532         }
3533
3534         return 0;
3535 }
3536
3537 static void wait_cmds_complete_timeout_v2_hw(struct hisi_hba *hisi_hba,
3538                                              int delay_ms, int timeout_ms)
3539 {
3540         struct device *dev = hisi_hba->dev;
3541         int entries, entries_old = 0, time;
3542
3543         for (time = 0; time < timeout_ms; time += delay_ms) {
3544                 entries = hisi_sas_read32(hisi_hba, CQE_SEND_CNT);
3545                 if (entries == entries_old)
3546                         break;
3547
3548                 entries_old = entries;
3549                 msleep(delay_ms);
3550         }
3551
3552         dev_dbg(dev, "wait commands complete %dms\n", time);
3553 }
3554
3555 static struct scsi_host_template sht_v2_hw = {
3556         .name                   = DRV_NAME,
3557         .module                 = THIS_MODULE,
3558         .queuecommand           = sas_queuecommand,
3559         .target_alloc           = sas_target_alloc,
3560         .slave_configure        = hisi_sas_slave_configure,
3561         .scan_finished          = hisi_sas_scan_finished,
3562         .scan_start             = hisi_sas_scan_start,
3563         .change_queue_depth     = sas_change_queue_depth,
3564         .bios_param             = sas_bios_param,
3565         .this_id                = -1,
3566         .sg_tablesize           = SG_ALL,
3567         .max_sectors            = SCSI_DEFAULT_MAX_SECTORS,
3568         .use_clustering         = ENABLE_CLUSTERING,
3569         .eh_device_reset_handler = sas_eh_device_reset_handler,
3570         .eh_target_reset_handler = sas_eh_target_reset_handler,
3571         .target_destroy         = sas_target_destroy,
3572         .ioctl                  = sas_ioctl,
3573         .shost_attrs            = host_attrs,
3574 };
3575
3576 static const struct hisi_sas_hw hisi_sas_v2_hw = {
3577         .hw_init = hisi_sas_v2_init,
3578         .setup_itct = setup_itct_v2_hw,
3579         .slot_index_alloc = slot_index_alloc_quirk_v2_hw,
3580         .alloc_dev = alloc_dev_quirk_v2_hw,
3581         .sl_notify = sl_notify_v2_hw,
3582         .get_wideport_bitmap = get_wideport_bitmap_v2_hw,
3583         .clear_itct = clear_itct_v2_hw,
3584         .free_device = free_device_v2_hw,
3585         .prep_smp = prep_smp_v2_hw,
3586         .prep_ssp = prep_ssp_v2_hw,
3587         .prep_stp = prep_ata_v2_hw,
3588         .prep_abort = prep_abort_v2_hw,
3589         .get_free_slot = get_free_slot_v2_hw,
3590         .start_delivery = start_delivery_v2_hw,
3591         .slot_complete = slot_complete_v2_hw,
3592         .phys_init = phys_init_v2_hw,
3593         .phy_start = start_phy_v2_hw,
3594         .phy_disable = disable_phy_v2_hw,
3595         .phy_hard_reset = phy_hard_reset_v2_hw,
3596         .get_events = phy_get_events_v2_hw,
3597         .phy_set_linkrate = phy_set_linkrate_v2_hw,
3598         .phy_get_max_linkrate = phy_get_max_linkrate_v2_hw,
3599         .max_command_entries = HISI_SAS_COMMAND_ENTRIES_V2_HW,
3600         .complete_hdr_size = sizeof(struct hisi_sas_complete_v2_hdr),
3601         .soft_reset = soft_reset_v2_hw,
3602         .get_phys_state = get_phys_state_v2_hw,
3603         .write_gpio = write_gpio_v2_hw,
3604         .wait_cmds_complete_timeout = wait_cmds_complete_timeout_v2_hw,
3605         .sht = &sht_v2_hw,
3606 };
3607
3608 static int hisi_sas_v2_probe(struct platform_device *pdev)
3609 {
3610         /*
3611          * Check if we should defer the probe before we probe the
3612          * upper layer, as it's hard to defer later on.
3613          */
3614         int ret = platform_get_irq(pdev, 0);
3615
3616         if (ret < 0) {
3617                 if (ret != -EPROBE_DEFER)
3618                         dev_err(&pdev->dev, "cannot obtain irq\n");
3619                 return ret;
3620         }
3621
3622         return hisi_sas_probe(pdev, &hisi_sas_v2_hw);
3623 }
3624
3625 static int hisi_sas_v2_remove(struct platform_device *pdev)
3626 {
3627         struct sas_ha_struct *sha = platform_get_drvdata(pdev);
3628         struct hisi_hba *hisi_hba = sha->lldd_ha;
3629
3630         hisi_sas_kill_tasklets(hisi_hba);
3631
3632         return hisi_sas_remove(pdev);
3633 }
3634
3635 static const struct of_device_id sas_v2_of_match[] = {
3636         { .compatible = "hisilicon,hip06-sas-v2",},
3637         { .compatible = "hisilicon,hip07-sas-v2",},
3638         {},
3639 };
3640 MODULE_DEVICE_TABLE(of, sas_v2_of_match);
3641
3642 static const struct acpi_device_id sas_v2_acpi_match[] = {
3643         { "HISI0162", 0 },
3644         { }
3645 };
3646
3647 MODULE_DEVICE_TABLE(acpi, sas_v2_acpi_match);
3648
3649 static struct platform_driver hisi_sas_v2_driver = {
3650         .probe = hisi_sas_v2_probe,
3651         .remove = hisi_sas_v2_remove,
3652         .driver = {
3653                 .name = DRV_NAME,
3654                 .of_match_table = sas_v2_of_match,
3655                 .acpi_match_table = ACPI_PTR(sas_v2_acpi_match),
3656         },
3657 };
3658
3659 module_platform_driver(hisi_sas_v2_driver);
3660
3661 MODULE_LICENSE("GPL");
3662 MODULE_AUTHOR("John Garry <john.garry@huawei.com>");
3663 MODULE_DESCRIPTION("HISILICON SAS controller v2 hw driver");
3664 MODULE_ALIAS("platform:" DRV_NAME);