1 // SPDX-License-Identifier: GPL-2.0-or-later 2 /* 3 * Copyright (c) 2015 Linaro Ltd. 4 * Copyright (c) 2015 Hisilicon Limited. 5 */ 6 7 #include "hisi_sas.h" 8 #define DRV_NAME "hisi_sas_v1_hw" 9 10 /* global registers need init*/ 11 #define DLVRY_QUEUE_ENABLE 0x0 12 #define IOST_BASE_ADDR_LO 0x8 13 #define IOST_BASE_ADDR_HI 0xc 14 #define ITCT_BASE_ADDR_LO 0x10 15 #define ITCT_BASE_ADDR_HI 0x14 16 #define BROKEN_MSG_ADDR_LO 0x18 17 #define BROKEN_MSG_ADDR_HI 0x1c 18 #define PHY_CONTEXT 0x20 19 #define PHY_STATE 0x24 20 #define PHY_PORT_NUM_MA 0x28 21 #define PORT_STATE 0x2c 22 #define PHY_CONN_RATE 0x30 23 #define HGC_TRANS_TASK_CNT_LIMIT 0x38 24 #define AXI_AHB_CLK_CFG 0x3c 25 #define HGC_SAS_TXFAIL_RETRY_CTRL 0x84 26 #define HGC_GET_ITV_TIME 0x90 27 #define DEVICE_MSG_WORK_MODE 0x94 28 #define I_T_NEXUS_LOSS_TIME 0xa0 29 #define BUS_INACTIVE_LIMIT_TIME 0xa8 30 #define REJECT_TO_OPEN_LIMIT_TIME 0xac 31 #define CFG_AGING_TIME 0xbc 32 #define CFG_AGING_TIME_ITCT_REL_OFF 0 33 #define CFG_AGING_TIME_ITCT_REL_MSK (0x1 << CFG_AGING_TIME_ITCT_REL_OFF) 34 #define HGC_DFX_CFG2 0xc0 35 #define FIS_LIST_BADDR_L 0xc4 36 #define CFG_1US_TIMER_TRSH 0xcc 37 #define CFG_SAS_CONFIG 0xd4 38 #define HGC_IOST_ECC_ADDR 0x140 39 #define HGC_IOST_ECC_ADDR_BAD_OFF 16 40 #define HGC_IOST_ECC_ADDR_BAD_MSK (0x3ff << HGC_IOST_ECC_ADDR_BAD_OFF) 41 #define HGC_DQ_ECC_ADDR 0x144 42 #define HGC_DQ_ECC_ADDR_BAD_OFF 16 43 #define HGC_DQ_ECC_ADDR_BAD_MSK (0xfff << HGC_DQ_ECC_ADDR_BAD_OFF) 44 #define HGC_INVLD_DQE_INFO 0x148 45 #define HGC_INVLD_DQE_INFO_DQ_OFF 0 46 #define HGC_INVLD_DQE_INFO_DQ_MSK (0xffff << HGC_INVLD_DQE_INFO_DQ_OFF) 47 #define HGC_INVLD_DQE_INFO_TYPE_OFF 16 48 #define HGC_INVLD_DQE_INFO_TYPE_MSK (0x1 << HGC_INVLD_DQE_INFO_TYPE_OFF) 49 #define HGC_INVLD_DQE_INFO_FORCE_OFF 17 50 #define HGC_INVLD_DQE_INFO_FORCE_MSK (0x1 << HGC_INVLD_DQE_INFO_FORCE_OFF) 51 #define HGC_INVLD_DQE_INFO_PHY_OFF 18 52 #define HGC_INVLD_DQE_INFO_PHY_MSK (0x1 << HGC_INVLD_DQE_INFO_PHY_OFF) 53 #define HGC_INVLD_DQE_INFO_ABORT_OFF 19 54 #define HGC_INVLD_DQE_INFO_ABORT_MSK (0x1 << HGC_INVLD_DQE_INFO_ABORT_OFF) 55 #define HGC_INVLD_DQE_INFO_IPTT_OF_OFF 20 56 #define HGC_INVLD_DQE_INFO_IPTT_OF_MSK (0x1 << HGC_INVLD_DQE_INFO_IPTT_OF_OFF) 57 #define HGC_INVLD_DQE_INFO_SSP_ERR_OFF 21 58 #define HGC_INVLD_DQE_INFO_SSP_ERR_MSK (0x1 << HGC_INVLD_DQE_INFO_SSP_ERR_OFF) 59 #define HGC_INVLD_DQE_INFO_OFL_OFF 22 60 #define HGC_INVLD_DQE_INFO_OFL_MSK (0x1 << HGC_INVLD_DQE_INFO_OFL_OFF) 61 #define HGC_ITCT_ECC_ADDR 0x150 62 #define HGC_ITCT_ECC_ADDR_BAD_OFF 16 63 #define HGC_ITCT_ECC_ADDR_BAD_MSK (0x3ff << HGC_ITCT_ECC_ADDR_BAD_OFF) 64 #define HGC_AXI_FIFO_ERR_INFO 0x154 65 #define INT_COAL_EN 0x1bc 66 #define OQ_INT_COAL_TIME 0x1c0 67 #define OQ_INT_COAL_CNT 0x1c4 68 #define ENT_INT_COAL_TIME 0x1c8 69 #define ENT_INT_COAL_CNT 0x1cc 70 #define OQ_INT_SRC 0x1d0 71 #define OQ_INT_SRC_MSK 0x1d4 72 #define ENT_INT_SRC1 0x1d8 73 #define ENT_INT_SRC2 0x1dc 74 #define ENT_INT_SRC2_DQ_CFG_ERR_OFF 25 75 #define ENT_INT_SRC2_DQ_CFG_ERR_MSK (0x1 << ENT_INT_SRC2_DQ_CFG_ERR_OFF) 76 #define ENT_INT_SRC2_CQ_CFG_ERR_OFF 27 77 #define ENT_INT_SRC2_CQ_CFG_ERR_MSK (0x1 << ENT_INT_SRC2_CQ_CFG_ERR_OFF) 78 #define ENT_INT_SRC2_AXI_WRONG_INT_OFF 28 79 #define ENT_INT_SRC2_AXI_WRONG_INT_MSK (0x1 << ENT_INT_SRC2_AXI_WRONG_INT_OFF) 80 #define ENT_INT_SRC2_AXI_OVERLF_INT_OFF 29 81 #define ENT_INT_SRC2_AXI_OVERLF_INT_MSK (0x1 << ENT_INT_SRC2_AXI_OVERLF_INT_OFF) 82 #define ENT_INT_SRC_MSK1 0x1e0 83 #define ENT_INT_SRC_MSK2 0x1e4 84 #define SAS_ECC_INTR 0x1e8 85 #define SAS_ECC_INTR_DQ_ECC1B_OFF 0 86 #define SAS_ECC_INTR_DQ_ECC1B_MSK (0x1 << SAS_ECC_INTR_DQ_ECC1B_OFF) 87 #define SAS_ECC_INTR_DQ_ECCBAD_OFF 1 88 #define SAS_ECC_INTR_DQ_ECCBAD_MSK (0x1 << SAS_ECC_INTR_DQ_ECCBAD_OFF) 89 #define SAS_ECC_INTR_IOST_ECC1B_OFF 2 90 #define SAS_ECC_INTR_IOST_ECC1B_MSK (0x1 << SAS_ECC_INTR_IOST_ECC1B_OFF) 91 #define SAS_ECC_INTR_IOST_ECCBAD_OFF 3 92 #define SAS_ECC_INTR_IOST_ECCBAD_MSK (0x1 << SAS_ECC_INTR_IOST_ECCBAD_OFF) 93 #define SAS_ECC_INTR_ITCT_ECC1B_OFF 4 94 #define SAS_ECC_INTR_ITCT_ECC1B_MSK (0x1 << SAS_ECC_INTR_ITCT_ECC1B_OFF) 95 #define SAS_ECC_INTR_ITCT_ECCBAD_OFF 5 96 #define SAS_ECC_INTR_ITCT_ECCBAD_MSK (0x1 << SAS_ECC_INTR_ITCT_ECCBAD_OFF) 97 #define SAS_ECC_INTR_MSK 0x1ec 98 #define HGC_ERR_STAT_EN 0x238 99 #define DLVRY_Q_0_BASE_ADDR_LO 0x260 100 #define DLVRY_Q_0_BASE_ADDR_HI 0x264 101 #define DLVRY_Q_0_DEPTH 0x268 102 #define DLVRY_Q_0_WR_PTR 0x26c 103 #define DLVRY_Q_0_RD_PTR 0x270 104 #define COMPL_Q_0_BASE_ADDR_LO 0x4e0 105 #define COMPL_Q_0_BASE_ADDR_HI 0x4e4 106 #define COMPL_Q_0_DEPTH 0x4e8 107 #define COMPL_Q_0_WR_PTR 0x4ec 108 #define COMPL_Q_0_RD_PTR 0x4f0 109 #define HGC_ECC_ERR 0x7d0 110 111 /* phy registers need init */ 112 #define PORT_BASE (0x800) 113 114 #define PHY_CFG (PORT_BASE + 0x0) 115 #define PHY_CFG_ENA_OFF 0 116 #define PHY_CFG_ENA_MSK (0x1 << PHY_CFG_ENA_OFF) 117 #define PHY_CFG_DC_OPT_OFF 2 118 #define PHY_CFG_DC_OPT_MSK (0x1 << PHY_CFG_DC_OPT_OFF) 119 #define PROG_PHY_LINK_RATE (PORT_BASE + 0xc) 120 #define PROG_PHY_LINK_RATE_MAX_OFF 0 121 #define PROG_PHY_LINK_RATE_MAX_MSK (0xf << PROG_PHY_LINK_RATE_MAX_OFF) 122 #define PROG_PHY_LINK_RATE_MIN_OFF 4 123 #define PROG_PHY_LINK_RATE_MIN_MSK (0xf << PROG_PHY_LINK_RATE_MIN_OFF) 124 #define PROG_PHY_LINK_RATE_OOB_OFF 8 125 #define PROG_PHY_LINK_RATE_OOB_MSK (0xf << PROG_PHY_LINK_RATE_OOB_OFF) 126 #define PHY_CTRL (PORT_BASE + 0x14) 127 #define PHY_CTRL_RESET_OFF 0 128 #define PHY_CTRL_RESET_MSK (0x1 << PHY_CTRL_RESET_OFF) 129 #define PHY_RATE_NEGO (PORT_BASE + 0x30) 130 #define PHY_PCN (PORT_BASE + 0x44) 131 #define SL_TOUT_CFG (PORT_BASE + 0x8c) 132 #define SL_CONTROL (PORT_BASE + 0x94) 133 #define SL_CONTROL_NOTIFY_EN_OFF 0 134 #define SL_CONTROL_NOTIFY_EN_MSK (0x1 << SL_CONTROL_NOTIFY_EN_OFF) 135 #define TX_ID_DWORD0 (PORT_BASE + 0x9c) 136 #define TX_ID_DWORD1 (PORT_BASE + 0xa0) 137 #define TX_ID_DWORD2 (PORT_BASE + 0xa4) 138 #define TX_ID_DWORD3 (PORT_BASE + 0xa8) 139 #define TX_ID_DWORD4 (PORT_BASE + 0xaC) 140 #define TX_ID_DWORD5 (PORT_BASE + 0xb0) 141 #define TX_ID_DWORD6 (PORT_BASE + 0xb4) 142 #define RX_IDAF_DWORD0 (PORT_BASE + 0xc4) 143 #define RX_IDAF_DWORD1 (PORT_BASE + 0xc8) 144 #define RX_IDAF_DWORD2 (PORT_BASE + 0xcc) 145 #define RX_IDAF_DWORD3 (PORT_BASE + 0xd0) 146 #define RX_IDAF_DWORD4 (PORT_BASE + 0xd4) 147 #define RX_IDAF_DWORD5 (PORT_BASE + 0xd8) 148 #define RX_IDAF_DWORD6 (PORT_BASE + 0xdc) 149 #define RXOP_CHECK_CFG_H (PORT_BASE + 0xfc) 150 #define DONE_RECEIVED_TIME (PORT_BASE + 0x12c) 151 #define CON_CFG_DRIVER (PORT_BASE + 0x130) 152 #define PHY_CONFIG2 (PORT_BASE + 0x1a8) 153 #define PHY_CONFIG2_FORCE_TXDEEMPH_OFF 3 154 #define PHY_CONFIG2_FORCE_TXDEEMPH_MSK (0x1 << PHY_CONFIG2_FORCE_TXDEEMPH_OFF) 155 #define PHY_CONFIG2_TX_TRAIN_COMP_OFF 24 156 #define PHY_CONFIG2_TX_TRAIN_COMP_MSK (0x1 << PHY_CONFIG2_TX_TRAIN_COMP_OFF) 157 #define CHL_INT0 (PORT_BASE + 0x1b0) 158 #define CHL_INT0_PHYCTRL_NOTRDY_OFF 0 159 #define CHL_INT0_PHYCTRL_NOTRDY_MSK (0x1 << CHL_INT0_PHYCTRL_NOTRDY_OFF) 160 #define CHL_INT0_SN_FAIL_NGR_OFF 2 161 #define CHL_INT0_SN_FAIL_NGR_MSK (0x1 << CHL_INT0_SN_FAIL_NGR_OFF) 162 #define CHL_INT0_DWS_LOST_OFF 4 163 #define CHL_INT0_DWS_LOST_MSK (0x1 << CHL_INT0_DWS_LOST_OFF) 164 #define CHL_INT0_SL_IDAF_FAIL_OFF 10 165 #define CHL_INT0_SL_IDAF_FAIL_MSK (0x1 << CHL_INT0_SL_IDAF_FAIL_OFF) 166 #define CHL_INT0_ID_TIMEOUT_OFF 11 167 #define CHL_INT0_ID_TIMEOUT_MSK (0x1 << CHL_INT0_ID_TIMEOUT_OFF) 168 #define CHL_INT0_SL_OPAF_FAIL_OFF 12 169 #define CHL_INT0_SL_OPAF_FAIL_MSK (0x1 << CHL_INT0_SL_OPAF_FAIL_OFF) 170 #define CHL_INT0_SL_PS_FAIL_OFF 21 171 #define CHL_INT0_SL_PS_FAIL_MSK (0x1 << CHL_INT0_SL_PS_FAIL_OFF) 172 #define CHL_INT1 (PORT_BASE + 0x1b4) 173 #define CHL_INT2 (PORT_BASE + 0x1b8) 174 #define CHL_INT2_SL_RX_BC_ACK_OFF 2 175 #define CHL_INT2_SL_RX_BC_ACK_MSK (0x1 << CHL_INT2_SL_RX_BC_ACK_OFF) 176 #define CHL_INT2_SL_PHY_ENA_OFF 6 177 #define CHL_INT2_SL_PHY_ENA_MSK (0x1 << CHL_INT2_SL_PHY_ENA_OFF) 178 #define CHL_INT0_MSK (PORT_BASE + 0x1bc) 179 #define CHL_INT0_MSK_PHYCTRL_NOTRDY_OFF 0 180 #define CHL_INT0_MSK_PHYCTRL_NOTRDY_MSK (0x1 << CHL_INT0_MSK_PHYCTRL_NOTRDY_OFF) 181 #define CHL_INT1_MSK (PORT_BASE + 0x1c0) 182 #define CHL_INT2_MSK (PORT_BASE + 0x1c4) 183 #define CHL_INT_COAL_EN (PORT_BASE + 0x1d0) 184 #define DMA_TX_STATUS (PORT_BASE + 0x2d0) 185 #define DMA_TX_STATUS_BUSY_OFF 0 186 #define DMA_TX_STATUS_BUSY_MSK (0x1 << DMA_TX_STATUS_BUSY_OFF) 187 #define DMA_RX_STATUS (PORT_BASE + 0x2e8) 188 #define DMA_RX_STATUS_BUSY_OFF 0 189 #define DMA_RX_STATUS_BUSY_MSK (0x1 << DMA_RX_STATUS_BUSY_OFF) 190 191 #define AXI_CFG 0x5100 192 #define RESET_VALUE 0x7ffff 193 194 /* HW dma structures */ 195 /* Delivery queue header */ 196 /* dw0 */ 197 #define CMD_HDR_RESP_REPORT_OFF 5 198 #define CMD_HDR_RESP_REPORT_MSK 0x20 199 #define CMD_HDR_TLR_CTRL_OFF 6 200 #define CMD_HDR_TLR_CTRL_MSK 0xc0 201 #define CMD_HDR_PORT_OFF 17 202 #define CMD_HDR_PORT_MSK 0xe0000 203 #define CMD_HDR_PRIORITY_OFF 27 204 #define CMD_HDR_PRIORITY_MSK 0x8000000 205 #define CMD_HDR_MODE_OFF 28 206 #define CMD_HDR_MODE_MSK 0x10000000 207 #define CMD_HDR_CMD_OFF 29 208 #define CMD_HDR_CMD_MSK 0xe0000000 209 /* dw1 */ 210 #define CMD_HDR_VERIFY_DTL_OFF 10 211 #define CMD_HDR_VERIFY_DTL_MSK 0x400 212 #define CMD_HDR_SSP_FRAME_TYPE_OFF 13 213 #define CMD_HDR_SSP_FRAME_TYPE_MSK 0xe000 214 #define CMD_HDR_DEVICE_ID_OFF 16 215 #define CMD_HDR_DEVICE_ID_MSK 0xffff0000 216 /* dw2 */ 217 #define CMD_HDR_CFL_OFF 0 218 #define CMD_HDR_CFL_MSK 0x1ff 219 #define CMD_HDR_MRFL_OFF 15 220 #define CMD_HDR_MRFL_MSK 0xff8000 221 #define CMD_HDR_FIRST_BURST_OFF 25 222 #define CMD_HDR_FIRST_BURST_MSK 0x2000000 223 /* dw3 */ 224 #define CMD_HDR_IPTT_OFF 0 225 #define CMD_HDR_IPTT_MSK 0xffff 226 /* dw6 */ 227 #define CMD_HDR_DATA_SGL_LEN_OFF 16 228 #define CMD_HDR_DATA_SGL_LEN_MSK 0xffff0000 229 230 /* Completion header */ 231 #define CMPLT_HDR_IPTT_OFF 0 232 #define CMPLT_HDR_IPTT_MSK (0xffff << CMPLT_HDR_IPTT_OFF) 233 #define CMPLT_HDR_CMD_CMPLT_OFF 17 234 #define CMPLT_HDR_CMD_CMPLT_MSK (0x1 << CMPLT_HDR_CMD_CMPLT_OFF) 235 #define CMPLT_HDR_ERR_RCRD_XFRD_OFF 18 236 #define CMPLT_HDR_ERR_RCRD_XFRD_MSK (0x1 << CMPLT_HDR_ERR_RCRD_XFRD_OFF) 237 #define CMPLT_HDR_RSPNS_XFRD_OFF 19 238 #define CMPLT_HDR_RSPNS_XFRD_MSK (0x1 << CMPLT_HDR_RSPNS_XFRD_OFF) 239 #define CMPLT_HDR_IO_CFG_ERR_OFF 27 240 #define CMPLT_HDR_IO_CFG_ERR_MSK (0x1 << CMPLT_HDR_IO_CFG_ERR_OFF) 241 242 /* ITCT header */ 243 /* qw0 */ 244 #define ITCT_HDR_DEV_TYPE_OFF 0 245 #define ITCT_HDR_DEV_TYPE_MSK (0x3ULL << ITCT_HDR_DEV_TYPE_OFF) 246 #define ITCT_HDR_VALID_OFF 2 247 #define ITCT_HDR_VALID_MSK (0x1ULL << ITCT_HDR_VALID_OFF) 248 #define ITCT_HDR_AWT_CONTROL_OFF 4 249 #define ITCT_HDR_AWT_CONTROL_MSK (0x1ULL << ITCT_HDR_AWT_CONTROL_OFF) 250 #define ITCT_HDR_MAX_CONN_RATE_OFF 5 251 #define ITCT_HDR_MAX_CONN_RATE_MSK (0xfULL << ITCT_HDR_MAX_CONN_RATE_OFF) 252 #define ITCT_HDR_VALID_LINK_NUM_OFF 9 253 #define ITCT_HDR_VALID_LINK_NUM_MSK (0xfULL << ITCT_HDR_VALID_LINK_NUM_OFF) 254 #define ITCT_HDR_PORT_ID_OFF 13 255 #define ITCT_HDR_PORT_ID_MSK (0x7ULL << ITCT_HDR_PORT_ID_OFF) 256 #define ITCT_HDR_SMP_TIMEOUT_OFF 16 257 #define ITCT_HDR_SMP_TIMEOUT_MSK (0xffffULL << ITCT_HDR_SMP_TIMEOUT_OFF) 258 /* qw1 */ 259 #define ITCT_HDR_MAX_SAS_ADDR_OFF 0 260 #define ITCT_HDR_MAX_SAS_ADDR_MSK (0xffffffffffffffff << \ 261 ITCT_HDR_MAX_SAS_ADDR_OFF) 262 /* qw2 */ 263 #define ITCT_HDR_IT_NEXUS_LOSS_TL_OFF 0 264 #define ITCT_HDR_IT_NEXUS_LOSS_TL_MSK (0xffffULL << \ 265 ITCT_HDR_IT_NEXUS_LOSS_TL_OFF) 266 #define ITCT_HDR_BUS_INACTIVE_TL_OFF 16 267 #define ITCT_HDR_BUS_INACTIVE_TL_MSK (0xffffULL << \ 268 ITCT_HDR_BUS_INACTIVE_TL_OFF) 269 #define ITCT_HDR_MAX_CONN_TL_OFF 32 270 #define ITCT_HDR_MAX_CONN_TL_MSK (0xffffULL << \ 271 ITCT_HDR_MAX_CONN_TL_OFF) 272 #define ITCT_HDR_REJ_OPEN_TL_OFF 48 273 #define ITCT_HDR_REJ_OPEN_TL_MSK (0xffffULL << \ 274 ITCT_HDR_REJ_OPEN_TL_OFF) 275 276 /* Err record header */ 277 #define ERR_HDR_DMA_TX_ERR_TYPE_OFF 0 278 #define ERR_HDR_DMA_TX_ERR_TYPE_MSK (0xffff << ERR_HDR_DMA_TX_ERR_TYPE_OFF) 279 #define ERR_HDR_DMA_RX_ERR_TYPE_OFF 16 280 #define ERR_HDR_DMA_RX_ERR_TYPE_MSK (0xffff << ERR_HDR_DMA_RX_ERR_TYPE_OFF) 281 282 struct hisi_sas_complete_v1_hdr { 283 __le32 data; 284 }; 285 286 struct hisi_sas_err_record_v1 { 287 /* dw0 */ 288 __le32 dma_err_type; 289 290 /* dw1 */ 291 __le32 trans_tx_fail_type; 292 293 /* dw2 */ 294 __le32 trans_rx_fail_type; 295 296 /* dw3 */ 297 u32 rsvd; 298 }; 299 300 enum { 301 HISI_SAS_PHY_BCAST_ACK = 0, 302 HISI_SAS_PHY_SL_PHY_ENABLED, 303 HISI_SAS_PHY_INT_ABNORMAL, 304 HISI_SAS_PHY_INT_NR 305 }; 306 307 enum { 308 DMA_TX_ERR_BASE = 0x0, 309 DMA_RX_ERR_BASE = 0x100, 310 TRANS_TX_FAIL_BASE = 0x200, 311 TRANS_RX_FAIL_BASE = 0x300, 312 313 /* dma tx */ 314 DMA_TX_DIF_CRC_ERR = DMA_TX_ERR_BASE, /* 0x0 */ 315 DMA_TX_DIF_APP_ERR, /* 0x1 */ 316 DMA_TX_DIF_RPP_ERR, /* 0x2 */ 317 DMA_TX_AXI_BUS_ERR, /* 0x3 */ 318 DMA_TX_DATA_SGL_OVERFLOW_ERR, /* 0x4 */ 319 DMA_TX_DIF_SGL_OVERFLOW_ERR, /* 0x5 */ 320 DMA_TX_UNEXP_XFER_RDY_ERR, /* 0x6 */ 321 DMA_TX_XFER_RDY_OFFSET_ERR, /* 0x7 */ 322 DMA_TX_DATA_UNDERFLOW_ERR, /* 0x8 */ 323 DMA_TX_XFER_RDY_LENGTH_OVERFLOW_ERR, /* 0x9 */ 324 325 /* dma rx */ 326 DMA_RX_BUFFER_ECC_ERR = DMA_RX_ERR_BASE, /* 0x100 */ 327 DMA_RX_DIF_CRC_ERR, /* 0x101 */ 328 DMA_RX_DIF_APP_ERR, /* 0x102 */ 329 DMA_RX_DIF_RPP_ERR, /* 0x103 */ 330 DMA_RX_RESP_BUFFER_OVERFLOW_ERR, /* 0x104 */ 331 DMA_RX_AXI_BUS_ERR, /* 0x105 */ 332 DMA_RX_DATA_SGL_OVERFLOW_ERR, /* 0x106 */ 333 DMA_RX_DIF_SGL_OVERFLOW_ERR, /* 0x107 */ 334 DMA_RX_DATA_OFFSET_ERR, /* 0x108 */ 335 DMA_RX_UNEXP_RX_DATA_ERR, /* 0x109 */ 336 DMA_RX_DATA_OVERFLOW_ERR, /* 0x10a */ 337 DMA_RX_DATA_UNDERFLOW_ERR, /* 0x10b */ 338 DMA_RX_UNEXP_RETRANS_RESP_ERR, /* 0x10c */ 339 340 /* trans tx */ 341 TRANS_TX_RSVD0_ERR = TRANS_TX_FAIL_BASE, /* 0x200 */ 342 TRANS_TX_PHY_NOT_ENABLE_ERR, /* 0x201 */ 343 TRANS_TX_OPEN_REJCT_WRONG_DEST_ERR, /* 0x202 */ 344 TRANS_TX_OPEN_REJCT_ZONE_VIOLATION_ERR, /* 0x203 */ 345 TRANS_TX_OPEN_REJCT_BY_OTHER_ERR, /* 0x204 */ 346 TRANS_TX_RSVD1_ERR, /* 0x205 */ 347 TRANS_TX_OPEN_REJCT_AIP_TIMEOUT_ERR, /* 0x206 */ 348 TRANS_TX_OPEN_REJCT_STP_BUSY_ERR, /* 0x207 */ 349 TRANS_TX_OPEN_REJCT_PROTOCOL_NOT_SUPPORT_ERR, /* 0x208 */ 350 TRANS_TX_OPEN_REJCT_RATE_NOT_SUPPORT_ERR, /* 0x209 */ 351 TRANS_TX_OPEN_REJCT_BAD_DEST_ERR, /* 0x20a */ 352 TRANS_TX_OPEN_BREAK_RECEIVE_ERR, /* 0x20b */ 353 TRANS_TX_LOW_PHY_POWER_ERR, /* 0x20c */ 354 TRANS_TX_OPEN_REJCT_PATHWAY_BLOCKED_ERR, /* 0x20d */ 355 TRANS_TX_OPEN_TIMEOUT_ERR, /* 0x20e */ 356 TRANS_TX_OPEN_REJCT_NO_DEST_ERR, /* 0x20f */ 357 TRANS_TX_OPEN_RETRY_ERR, /* 0x210 */ 358 TRANS_TX_RSVD2_ERR, /* 0x211 */ 359 TRANS_TX_BREAK_TIMEOUT_ERR, /* 0x212 */ 360 TRANS_TX_BREAK_REQUEST_ERR, /* 0x213 */ 361 TRANS_TX_BREAK_RECEIVE_ERR, /* 0x214 */ 362 TRANS_TX_CLOSE_TIMEOUT_ERR, /* 0x215 */ 363 TRANS_TX_CLOSE_NORMAL_ERR, /* 0x216 */ 364 TRANS_TX_CLOSE_PHYRESET_ERR, /* 0x217 */ 365 TRANS_TX_WITH_CLOSE_DWS_TIMEOUT_ERR, /* 0x218 */ 366 TRANS_TX_WITH_CLOSE_COMINIT_ERR, /* 0x219 */ 367 TRANS_TX_NAK_RECEIVE_ERR, /* 0x21a */ 368 TRANS_TX_ACK_NAK_TIMEOUT_ERR, /* 0x21b */ 369 TRANS_TX_CREDIT_TIMEOUT_ERR, /* 0x21c */ 370 TRANS_TX_IPTT_CONFLICT_ERR, /* 0x21d */ 371 TRANS_TX_TXFRM_TYPE_ERR, /* 0x21e */ 372 TRANS_TX_TXSMP_LENGTH_ERR, /* 0x21f */ 373 374 /* trans rx */ 375 TRANS_RX_FRAME_CRC_ERR = TRANS_RX_FAIL_BASE, /* 0x300 */ 376 TRANS_RX_FRAME_DONE_ERR, /* 0x301 */ 377 TRANS_RX_FRAME_ERRPRM_ERR, /* 0x302 */ 378 TRANS_RX_FRAME_NO_CREDIT_ERR, /* 0x303 */ 379 TRANS_RX_RSVD0_ERR, /* 0x304 */ 380 TRANS_RX_FRAME_OVERRUN_ERR, /* 0x305 */ 381 TRANS_RX_FRAME_NO_EOF_ERR, /* 0x306 */ 382 TRANS_RX_LINK_BUF_OVERRUN_ERR, /* 0x307 */ 383 TRANS_RX_BREAK_TIMEOUT_ERR, /* 0x308 */ 384 TRANS_RX_BREAK_REQUEST_ERR, /* 0x309 */ 385 TRANS_RX_BREAK_RECEIVE_ERR, /* 0x30a */ 386 TRANS_RX_CLOSE_TIMEOUT_ERR, /* 0x30b */ 387 TRANS_RX_CLOSE_NORMAL_ERR, /* 0x30c */ 388 TRANS_RX_CLOSE_PHYRESET_ERR, /* 0x30d */ 389 TRANS_RX_WITH_CLOSE_DWS_TIMEOUT_ERR, /* 0x30e */ 390 TRANS_RX_WITH_CLOSE_COMINIT_ERR, /* 0x30f */ 391 TRANS_RX_DATA_LENGTH0_ERR, /* 0x310 */ 392 TRANS_RX_BAD_HASH_ERR, /* 0x311 */ 393 TRANS_RX_XRDY_ZERO_ERR, /* 0x312 */ 394 TRANS_RX_SSP_FRAME_LEN_ERR, /* 0x313 */ 395 TRANS_RX_TRANS_RX_RSVD1_ERR, /* 0x314 */ 396 TRANS_RX_NO_BALANCE_ERR, /* 0x315 */ 397 TRANS_RX_TRANS_RX_RSVD2_ERR, /* 0x316 */ 398 TRANS_RX_TRANS_RX_RSVD3_ERR, /* 0x317 */ 399 TRANS_RX_BAD_FRAME_TYPE_ERR, /* 0x318 */ 400 TRANS_RX_SMP_FRAME_LEN_ERR, /* 0x319 */ 401 TRANS_RX_SMP_RESP_TIMEOUT_ERR, /* 0x31a */ 402 }; 403 404 #define HISI_SAS_PHY_MAX_INT_NR (HISI_SAS_PHY_INT_NR * HISI_SAS_MAX_PHYS) 405 #define HISI_SAS_CQ_MAX_INT_NR (HISI_SAS_MAX_QUEUES) 406 #define HISI_SAS_FATAL_INT_NR (2) 407 408 #define HISI_SAS_MAX_INT_NR \ 409 (HISI_SAS_PHY_MAX_INT_NR + HISI_SAS_CQ_MAX_INT_NR +\ 410 HISI_SAS_FATAL_INT_NR) 411 412 static u32 hisi_sas_read32(struct hisi_hba *hisi_hba, u32 off) 413 { 414 void __iomem *regs = hisi_hba->regs + off; 415 416 return readl(regs); 417 } 418 419 static void hisi_sas_write32(struct hisi_hba *hisi_hba, 420 u32 off, u32 val) 421 { 422 void __iomem *regs = hisi_hba->regs + off; 423 424 writel(val, regs); 425 } 426 427 static void hisi_sas_phy_write32(struct hisi_hba *hisi_hba, 428 int phy_no, u32 off, u32 val) 429 { 430 void __iomem *regs = hisi_hba->regs + (0x400 * phy_no) + off; 431 432 writel(val, regs); 433 } 434 435 static u32 hisi_sas_phy_read32(struct hisi_hba *hisi_hba, 436 int phy_no, u32 off) 437 { 438 void __iomem *regs = hisi_hba->regs + (0x400 * phy_no) + off; 439 440 return readl(regs); 441 } 442 443 static void config_phy_opt_mode_v1_hw(struct hisi_hba *hisi_hba, int phy_no) 444 { 445 u32 cfg = hisi_sas_phy_read32(hisi_hba, phy_no, PHY_CFG); 446 447 cfg &= ~PHY_CFG_DC_OPT_MSK; 448 cfg |= 1 << PHY_CFG_DC_OPT_OFF; 449 hisi_sas_phy_write32(hisi_hba, phy_no, PHY_CFG, cfg); 450 } 451 452 static void config_tx_tfe_autoneg_v1_hw(struct hisi_hba *hisi_hba, int phy_no) 453 { 454 u32 cfg = hisi_sas_phy_read32(hisi_hba, phy_no, PHY_CONFIG2); 455 456 cfg &= ~PHY_CONFIG2_FORCE_TXDEEMPH_MSK; 457 hisi_sas_phy_write32(hisi_hba, phy_no, PHY_CONFIG2, cfg); 458 } 459 460 static void config_id_frame_v1_hw(struct hisi_hba *hisi_hba, int phy_no) 461 { 462 struct sas_identify_frame identify_frame; 463 u32 *identify_buffer; 464 465 memset(&identify_frame, 0, sizeof(identify_frame)); 466 identify_frame.dev_type = SAS_END_DEVICE; 467 identify_frame.frame_type = 0; 468 identify_frame._un1 = 1; 469 identify_frame.initiator_bits = SAS_PROTOCOL_ALL; 470 identify_frame.target_bits = SAS_PROTOCOL_NONE; 471 memcpy(&identify_frame._un4_11[0], hisi_hba->sas_addr, SAS_ADDR_SIZE); 472 memcpy(&identify_frame.sas_addr[0], hisi_hba->sas_addr, SAS_ADDR_SIZE); 473 identify_frame.phy_id = phy_no; 474 identify_buffer = (u32 *)(&identify_frame); 475 476 hisi_sas_phy_write32(hisi_hba, phy_no, TX_ID_DWORD0, 477 __swab32(identify_buffer[0])); 478 hisi_sas_phy_write32(hisi_hba, phy_no, TX_ID_DWORD1, 479 __swab32(identify_buffer[1])); 480 hisi_sas_phy_write32(hisi_hba, phy_no, TX_ID_DWORD2, 481 __swab32(identify_buffer[2])); 482 hisi_sas_phy_write32(hisi_hba, phy_no, TX_ID_DWORD3, 483 __swab32(identify_buffer[3])); 484 hisi_sas_phy_write32(hisi_hba, phy_no, TX_ID_DWORD4, 485 __swab32(identify_buffer[4])); 486 hisi_sas_phy_write32(hisi_hba, phy_no, TX_ID_DWORD5, 487 __swab32(identify_buffer[5])); 488 } 489 490 static void setup_itct_v1_hw(struct hisi_hba *hisi_hba, 491 struct hisi_sas_device *sas_dev) 492 { 493 struct domain_device *device = sas_dev->sas_device; 494 struct device *dev = hisi_hba->dev; 495 u64 qw0, device_id = sas_dev->device_id; 496 struct hisi_sas_itct *itct = &hisi_hba->itct[device_id]; 497 struct asd_sas_port *sas_port = device->port; 498 struct hisi_sas_port *port = to_hisi_sas_port(sas_port); 499 u64 sas_addr; 500 501 memset(itct, 0, sizeof(*itct)); 502 503 /* qw0 */ 504 qw0 = 0; 505 switch (sas_dev->dev_type) { 506 case SAS_END_DEVICE: 507 case SAS_EDGE_EXPANDER_DEVICE: 508 case SAS_FANOUT_EXPANDER_DEVICE: 509 qw0 = HISI_SAS_DEV_TYPE_SSP << ITCT_HDR_DEV_TYPE_OFF; 510 break; 511 default: 512 dev_warn(dev, "setup itct: unsupported dev type (%d)\n", 513 sas_dev->dev_type); 514 } 515 516 qw0 |= ((1 << ITCT_HDR_VALID_OFF) | 517 (1 << ITCT_HDR_AWT_CONTROL_OFF) | 518 (device->max_linkrate << ITCT_HDR_MAX_CONN_RATE_OFF) | 519 (1 << ITCT_HDR_VALID_LINK_NUM_OFF) | 520 (port->id << ITCT_HDR_PORT_ID_OFF)); 521 itct->qw0 = cpu_to_le64(qw0); 522 523 /* qw1 */ 524 memcpy(&sas_addr, device->sas_addr, SAS_ADDR_SIZE); 525 itct->sas_addr = cpu_to_le64(__swab64(sas_addr)); 526 527 /* qw2 */ 528 itct->qw2 = cpu_to_le64((500ULL << ITCT_HDR_IT_NEXUS_LOSS_TL_OFF) | 529 (0xff00ULL << ITCT_HDR_BUS_INACTIVE_TL_OFF) | 530 (0xff00ULL << ITCT_HDR_MAX_CONN_TL_OFF) | 531 (0xff00ULL << ITCT_HDR_REJ_OPEN_TL_OFF)); 532 } 533 534 static int clear_itct_v1_hw(struct hisi_hba *hisi_hba, 535 struct hisi_sas_device *sas_dev) 536 { 537 u64 dev_id = sas_dev->device_id; 538 struct hisi_sas_itct *itct = &hisi_hba->itct[dev_id]; 539 u64 qw0; 540 u32 reg_val = hisi_sas_read32(hisi_hba, CFG_AGING_TIME); 541 542 reg_val |= CFG_AGING_TIME_ITCT_REL_MSK; 543 hisi_sas_write32(hisi_hba, CFG_AGING_TIME, reg_val); 544 545 /* free itct */ 546 udelay(1); 547 reg_val = hisi_sas_read32(hisi_hba, CFG_AGING_TIME); 548 reg_val &= ~CFG_AGING_TIME_ITCT_REL_MSK; 549 hisi_sas_write32(hisi_hba, CFG_AGING_TIME, reg_val); 550 551 qw0 = le64_to_cpu(itct->qw0); 552 qw0 &= ~ITCT_HDR_VALID_MSK; 553 itct->qw0 = cpu_to_le64(qw0); 554 555 return 0; 556 } 557 558 static int reset_hw_v1_hw(struct hisi_hba *hisi_hba) 559 { 560 int i; 561 unsigned long end_time; 562 u32 val; 563 struct device *dev = hisi_hba->dev; 564 565 for (i = 0; i < hisi_hba->n_phy; i++) { 566 u32 phy_ctrl = hisi_sas_phy_read32(hisi_hba, i, PHY_CTRL); 567 568 phy_ctrl |= PHY_CTRL_RESET_MSK; 569 hisi_sas_phy_write32(hisi_hba, i, PHY_CTRL, phy_ctrl); 570 } 571 msleep(1); /* It is safe to wait for 50us */ 572 573 /* Ensure DMA tx & rx idle */ 574 for (i = 0; i < hisi_hba->n_phy; i++) { 575 u32 dma_tx_status, dma_rx_status; 576 577 end_time = jiffies + msecs_to_jiffies(1000); 578 579 while (1) { 580 dma_tx_status = hisi_sas_phy_read32(hisi_hba, i, 581 DMA_TX_STATUS); 582 dma_rx_status = hisi_sas_phy_read32(hisi_hba, i, 583 DMA_RX_STATUS); 584 585 if (!(dma_tx_status & DMA_TX_STATUS_BUSY_MSK) && 586 !(dma_rx_status & DMA_RX_STATUS_BUSY_MSK)) 587 break; 588 589 msleep(20); 590 if (time_after(jiffies, end_time)) 591 return -EIO; 592 } 593 } 594 595 /* Ensure axi bus idle */ 596 end_time = jiffies + msecs_to_jiffies(1000); 597 while (1) { 598 u32 axi_status = 599 hisi_sas_read32(hisi_hba, AXI_CFG); 600 601 if (axi_status == 0) 602 break; 603 604 msleep(20); 605 if (time_after(jiffies, end_time)) 606 return -EIO; 607 } 608 609 if (ACPI_HANDLE(dev)) { 610 acpi_status s; 611 612 s = acpi_evaluate_object(ACPI_HANDLE(dev), "_RST", NULL, NULL); 613 if (ACPI_FAILURE(s)) { 614 dev_err(dev, "Reset failed\n"); 615 return -EIO; 616 } 617 } else if (hisi_hba->ctrl) { 618 /* Apply reset and disable clock */ 619 /* clk disable reg is offset by +4 bytes from clk enable reg */ 620 regmap_write(hisi_hba->ctrl, hisi_hba->ctrl_reset_reg, 621 RESET_VALUE); 622 regmap_write(hisi_hba->ctrl, hisi_hba->ctrl_clock_ena_reg + 4, 623 RESET_VALUE); 624 msleep(1); 625 regmap_read(hisi_hba->ctrl, hisi_hba->ctrl_reset_sts_reg, &val); 626 if (RESET_VALUE != (val & RESET_VALUE)) { 627 dev_err(dev, "Reset failed\n"); 628 return -EIO; 629 } 630 631 /* De-reset and enable clock */ 632 /* deassert rst reg is offset by +4 bytes from assert reg */ 633 regmap_write(hisi_hba->ctrl, hisi_hba->ctrl_reset_reg + 4, 634 RESET_VALUE); 635 regmap_write(hisi_hba->ctrl, hisi_hba->ctrl_clock_ena_reg, 636 RESET_VALUE); 637 msleep(1); 638 regmap_read(hisi_hba->ctrl, hisi_hba->ctrl_reset_sts_reg, &val); 639 if (val & RESET_VALUE) { 640 dev_err(dev, "De-reset failed\n"); 641 return -EIO; 642 } 643 } else { 644 dev_warn(dev, "no reset method\n"); 645 return -EINVAL; 646 } 647 648 return 0; 649 } 650 651 static void init_reg_v1_hw(struct hisi_hba *hisi_hba) 652 { 653 int i; 654 655 /* Global registers init*/ 656 hisi_sas_write32(hisi_hba, DLVRY_QUEUE_ENABLE, 657 (u32)((1ULL << hisi_hba->queue_count) - 1)); 658 hisi_sas_write32(hisi_hba, HGC_TRANS_TASK_CNT_LIMIT, 0x11); 659 hisi_sas_write32(hisi_hba, DEVICE_MSG_WORK_MODE, 0x1); 660 hisi_sas_write32(hisi_hba, HGC_SAS_TXFAIL_RETRY_CTRL, 0x1ff); 661 hisi_sas_write32(hisi_hba, HGC_ERR_STAT_EN, 0x401); 662 hisi_sas_write32(hisi_hba, CFG_1US_TIMER_TRSH, 0x64); 663 hisi_sas_write32(hisi_hba, HGC_GET_ITV_TIME, 0x1); 664 hisi_sas_write32(hisi_hba, I_T_NEXUS_LOSS_TIME, 0x64); 665 hisi_sas_write32(hisi_hba, BUS_INACTIVE_LIMIT_TIME, 0x2710); 666 hisi_sas_write32(hisi_hba, REJECT_TO_OPEN_LIMIT_TIME, 0x1); 667 hisi_sas_write32(hisi_hba, CFG_AGING_TIME, 0x7a12); 668 hisi_sas_write32(hisi_hba, HGC_DFX_CFG2, 0x9c40); 669 hisi_sas_write32(hisi_hba, FIS_LIST_BADDR_L, 0x2); 670 hisi_sas_write32(hisi_hba, INT_COAL_EN, 0xc); 671 hisi_sas_write32(hisi_hba, OQ_INT_COAL_TIME, 0x186a0); 672 hisi_sas_write32(hisi_hba, OQ_INT_COAL_CNT, 1); 673 hisi_sas_write32(hisi_hba, ENT_INT_COAL_TIME, 0x1); 674 hisi_sas_write32(hisi_hba, ENT_INT_COAL_CNT, 0x1); 675 hisi_sas_write32(hisi_hba, OQ_INT_SRC, 0xffffffff); 676 hisi_sas_write32(hisi_hba, OQ_INT_SRC_MSK, 0); 677 hisi_sas_write32(hisi_hba, ENT_INT_SRC1, 0xffffffff); 678 hisi_sas_write32(hisi_hba, ENT_INT_SRC_MSK1, 0); 679 hisi_sas_write32(hisi_hba, ENT_INT_SRC2, 0xffffffff); 680 hisi_sas_write32(hisi_hba, ENT_INT_SRC_MSK2, 0); 681 hisi_sas_write32(hisi_hba, SAS_ECC_INTR_MSK, 0); 682 hisi_sas_write32(hisi_hba, AXI_AHB_CLK_CFG, 0x2); 683 hisi_sas_write32(hisi_hba, CFG_SAS_CONFIG, 0x22000000); 684 685 for (i = 0; i < hisi_hba->n_phy; i++) { 686 hisi_sas_phy_write32(hisi_hba, i, PROG_PHY_LINK_RATE, 0x88a); 687 hisi_sas_phy_write32(hisi_hba, i, PHY_CONFIG2, 0x7c080); 688 hisi_sas_phy_write32(hisi_hba, i, PHY_RATE_NEGO, 0x415ee00); 689 hisi_sas_phy_write32(hisi_hba, i, PHY_PCN, 0x80a80000); 690 hisi_sas_phy_write32(hisi_hba, i, SL_TOUT_CFG, 0x7d7d7d7d); 691 hisi_sas_phy_write32(hisi_hba, i, DONE_RECEIVED_TIME, 0x0); 692 hisi_sas_phy_write32(hisi_hba, i, RXOP_CHECK_CFG_H, 0x1000); 693 hisi_sas_phy_write32(hisi_hba, i, DONE_RECEIVED_TIME, 0); 694 hisi_sas_phy_write32(hisi_hba, i, CON_CFG_DRIVER, 0x13f0a); 695 hisi_sas_phy_write32(hisi_hba, i, CHL_INT_COAL_EN, 3); 696 hisi_sas_phy_write32(hisi_hba, i, DONE_RECEIVED_TIME, 8); 697 } 698 699 for (i = 0; i < hisi_hba->queue_count; i++) { 700 /* Delivery queue */ 701 hisi_sas_write32(hisi_hba, 702 DLVRY_Q_0_BASE_ADDR_HI + (i * 0x14), 703 upper_32_bits(hisi_hba->cmd_hdr_dma[i])); 704 705 hisi_sas_write32(hisi_hba, 706 DLVRY_Q_0_BASE_ADDR_LO + (i * 0x14), 707 lower_32_bits(hisi_hba->cmd_hdr_dma[i])); 708 709 hisi_sas_write32(hisi_hba, 710 DLVRY_Q_0_DEPTH + (i * 0x14), 711 HISI_SAS_QUEUE_SLOTS); 712 713 /* Completion queue */ 714 hisi_sas_write32(hisi_hba, 715 COMPL_Q_0_BASE_ADDR_HI + (i * 0x14), 716 upper_32_bits(hisi_hba->complete_hdr_dma[i])); 717 718 hisi_sas_write32(hisi_hba, 719 COMPL_Q_0_BASE_ADDR_LO + (i * 0x14), 720 lower_32_bits(hisi_hba->complete_hdr_dma[i])); 721 722 hisi_sas_write32(hisi_hba, COMPL_Q_0_DEPTH + (i * 0x14), 723 HISI_SAS_QUEUE_SLOTS); 724 } 725 726 /* itct */ 727 hisi_sas_write32(hisi_hba, ITCT_BASE_ADDR_LO, 728 lower_32_bits(hisi_hba->itct_dma)); 729 730 hisi_sas_write32(hisi_hba, ITCT_BASE_ADDR_HI, 731 upper_32_bits(hisi_hba->itct_dma)); 732 733 /* iost */ 734 hisi_sas_write32(hisi_hba, IOST_BASE_ADDR_LO, 735 lower_32_bits(hisi_hba->iost_dma)); 736 737 hisi_sas_write32(hisi_hba, IOST_BASE_ADDR_HI, 738 upper_32_bits(hisi_hba->iost_dma)); 739 740 /* breakpoint */ 741 hisi_sas_write32(hisi_hba, BROKEN_MSG_ADDR_LO, 742 lower_32_bits(hisi_hba->breakpoint_dma)); 743 744 hisi_sas_write32(hisi_hba, BROKEN_MSG_ADDR_HI, 745 upper_32_bits(hisi_hba->breakpoint_dma)); 746 } 747 748 static int hw_init_v1_hw(struct hisi_hba *hisi_hba) 749 { 750 struct device *dev = hisi_hba->dev; 751 int rc; 752 753 rc = reset_hw_v1_hw(hisi_hba); 754 if (rc) { 755 dev_err(dev, "hisi_sas_reset_hw failed, rc=%d\n", rc); 756 return rc; 757 } 758 759 msleep(100); 760 init_reg_v1_hw(hisi_hba); 761 762 return 0; 763 } 764 765 static void enable_phy_v1_hw(struct hisi_hba *hisi_hba, int phy_no) 766 { 767 u32 cfg = hisi_sas_phy_read32(hisi_hba, phy_no, PHY_CFG); 768 769 cfg |= PHY_CFG_ENA_MSK; 770 hisi_sas_phy_write32(hisi_hba, phy_no, PHY_CFG, cfg); 771 } 772 773 static void disable_phy_v1_hw(struct hisi_hba *hisi_hba, int phy_no) 774 { 775 u32 cfg = hisi_sas_phy_read32(hisi_hba, phy_no, PHY_CFG); 776 777 cfg &= ~PHY_CFG_ENA_MSK; 778 hisi_sas_phy_write32(hisi_hba, phy_no, PHY_CFG, cfg); 779 } 780 781 static void start_phy_v1_hw(struct hisi_hba *hisi_hba, int phy_no) 782 { 783 config_id_frame_v1_hw(hisi_hba, phy_no); 784 config_phy_opt_mode_v1_hw(hisi_hba, phy_no); 785 config_tx_tfe_autoneg_v1_hw(hisi_hba, phy_no); 786 enable_phy_v1_hw(hisi_hba, phy_no); 787 } 788 789 static void phy_hard_reset_v1_hw(struct hisi_hba *hisi_hba, int phy_no) 790 { 791 hisi_sas_phy_enable(hisi_hba, phy_no, 0); 792 msleep(100); 793 hisi_sas_phy_enable(hisi_hba, phy_no, 1); 794 } 795 796 static void start_phys_v1_hw(struct timer_list *t) 797 { 798 struct hisi_hba *hisi_hba = from_timer(hisi_hba, t, timer); 799 int i; 800 801 for (i = 0; i < hisi_hba->n_phy; i++) { 802 hisi_sas_phy_write32(hisi_hba, i, CHL_INT2_MSK, 0x12a); 803 hisi_sas_phy_enable(hisi_hba, i, 1); 804 } 805 } 806 807 static void phys_init_v1_hw(struct hisi_hba *hisi_hba) 808 { 809 int i; 810 struct timer_list *timer = &hisi_hba->timer; 811 812 for (i = 0; i < hisi_hba->n_phy; i++) { 813 hisi_sas_phy_write32(hisi_hba, i, CHL_INT2_MSK, 0x6a); 814 hisi_sas_phy_read32(hisi_hba, i, CHL_INT2_MSK); 815 } 816 817 timer_setup(timer, start_phys_v1_hw, 0); 818 mod_timer(timer, jiffies + HZ); 819 } 820 821 static void sl_notify_ssp_v1_hw(struct hisi_hba *hisi_hba, int phy_no) 822 { 823 u32 sl_control; 824 825 sl_control = hisi_sas_phy_read32(hisi_hba, phy_no, SL_CONTROL); 826 sl_control |= SL_CONTROL_NOTIFY_EN_MSK; 827 hisi_sas_phy_write32(hisi_hba, phy_no, SL_CONTROL, sl_control); 828 msleep(1); 829 sl_control = hisi_sas_phy_read32(hisi_hba, phy_no, SL_CONTROL); 830 sl_control &= ~SL_CONTROL_NOTIFY_EN_MSK; 831 hisi_sas_phy_write32(hisi_hba, phy_no, SL_CONTROL, sl_control); 832 } 833 834 static enum sas_linkrate phy_get_max_linkrate_v1_hw(void) 835 { 836 return SAS_LINK_RATE_6_0_GBPS; 837 } 838 839 static void phy_set_linkrate_v1_hw(struct hisi_hba *hisi_hba, int phy_no, 840 struct sas_phy_linkrates *r) 841 { 842 enum sas_linkrate max = r->maximum_linkrate; 843 u32 prog_phy_link_rate = 0x800; 844 845 prog_phy_link_rate |= hisi_sas_get_prog_phy_linkrate_mask(max); 846 hisi_sas_phy_write32(hisi_hba, phy_no, PROG_PHY_LINK_RATE, 847 prog_phy_link_rate); 848 } 849 850 static int get_wideport_bitmap_v1_hw(struct hisi_hba *hisi_hba, int port_id) 851 { 852 int i, bitmap = 0; 853 u32 phy_port_num_ma = hisi_sas_read32(hisi_hba, PHY_PORT_NUM_MA); 854 855 for (i = 0; i < hisi_hba->n_phy; i++) 856 if (((phy_port_num_ma >> (i * 4)) & 0xf) == port_id) 857 bitmap |= 1 << i; 858 859 return bitmap; 860 } 861 862 /* DQ lock must be taken here */ 863 static void start_delivery_v1_hw(struct hisi_sas_dq *dq) 864 { 865 struct hisi_hba *hisi_hba = dq->hisi_hba; 866 struct hisi_sas_slot *s, *s1, *s2 = NULL; 867 int dlvry_queue = dq->id; 868 int wp; 869 870 list_for_each_entry_safe(s, s1, &dq->list, delivery) { 871 if (!s->ready) 872 break; 873 s2 = s; 874 list_del(&s->delivery); 875 } 876 877 if (!s2) 878 return; 879 880 /* 881 * Ensure that memories for slots built on other CPUs is observed. 882 */ 883 smp_rmb(); 884 wp = (s2->dlvry_queue_slot + 1) % HISI_SAS_QUEUE_SLOTS; 885 886 hisi_sas_write32(hisi_hba, DLVRY_Q_0_WR_PTR + (dlvry_queue * 0x14), wp); 887 } 888 889 static void prep_prd_sge_v1_hw(struct hisi_hba *hisi_hba, 890 struct hisi_sas_slot *slot, 891 struct hisi_sas_cmd_hdr *hdr, 892 struct scatterlist *scatter, 893 int n_elem) 894 { 895 struct hisi_sas_sge_page *sge_page = hisi_sas_sge_addr_mem(slot); 896 struct scatterlist *sg; 897 int i; 898 899 for_each_sg(scatter, sg, n_elem, i) { 900 struct hisi_sas_sge *entry = &sge_page->sge[i]; 901 902 entry->addr = cpu_to_le64(sg_dma_address(sg)); 903 entry->page_ctrl_0 = entry->page_ctrl_1 = 0; 904 entry->data_len = cpu_to_le32(sg_dma_len(sg)); 905 entry->data_off = 0; 906 } 907 908 hdr->prd_table_addr = cpu_to_le64(hisi_sas_sge_addr_dma(slot)); 909 910 hdr->sg_len = cpu_to_le32(n_elem << CMD_HDR_DATA_SGL_LEN_OFF); 911 } 912 913 static void prep_smp_v1_hw(struct hisi_hba *hisi_hba, 914 struct hisi_sas_slot *slot) 915 { 916 struct sas_task *task = slot->task; 917 struct hisi_sas_cmd_hdr *hdr = slot->cmd_hdr; 918 struct domain_device *device = task->dev; 919 struct hisi_sas_port *port = slot->port; 920 struct scatterlist *sg_req; 921 struct hisi_sas_device *sas_dev = device->lldd_dev; 922 dma_addr_t req_dma_addr; 923 unsigned int req_len; 924 925 /* req */ 926 sg_req = &task->smp_task.smp_req; 927 req_len = sg_dma_len(sg_req); 928 req_dma_addr = sg_dma_address(sg_req); 929 930 /* create header */ 931 /* dw0 */ 932 hdr->dw0 = cpu_to_le32((port->id << CMD_HDR_PORT_OFF) | 933 (1 << CMD_HDR_PRIORITY_OFF) | /* high pri */ 934 (1 << CMD_HDR_MODE_OFF) | /* ini mode */ 935 (2 << CMD_HDR_CMD_OFF)); /* smp */ 936 937 /* map itct entry */ 938 hdr->dw1 = cpu_to_le32(sas_dev->device_id << CMD_HDR_DEVICE_ID_OFF); 939 940 /* dw2 */ 941 hdr->dw2 = cpu_to_le32((((req_len-4)/4) << CMD_HDR_CFL_OFF) | 942 (HISI_SAS_MAX_SMP_RESP_SZ/4 << 943 CMD_HDR_MRFL_OFF)); 944 945 hdr->transfer_tags = cpu_to_le32(slot->idx << CMD_HDR_IPTT_OFF); 946 947 hdr->cmd_table_addr = cpu_to_le64(req_dma_addr); 948 hdr->sts_buffer_addr = cpu_to_le64(hisi_sas_status_buf_addr_dma(slot)); 949 } 950 951 static void prep_ssp_v1_hw(struct hisi_hba *hisi_hba, 952 struct hisi_sas_slot *slot) 953 { 954 struct sas_task *task = slot->task; 955 struct hisi_sas_cmd_hdr *hdr = slot->cmd_hdr; 956 struct domain_device *device = task->dev; 957 struct hisi_sas_device *sas_dev = device->lldd_dev; 958 struct hisi_sas_port *port = slot->port; 959 struct sas_ssp_task *ssp_task = &task->ssp_task; 960 struct scsi_cmnd *scsi_cmnd = ssp_task->cmd; 961 struct hisi_sas_tmf_task *tmf = slot->tmf; 962 int has_data = 0, priority = !!tmf; 963 u8 *buf_cmd, fburst = 0; 964 u32 dw1, dw2; 965 966 /* create header */ 967 hdr->dw0 = cpu_to_le32((1 << CMD_HDR_RESP_REPORT_OFF) | 968 (0x2 << CMD_HDR_TLR_CTRL_OFF) | 969 (port->id << CMD_HDR_PORT_OFF) | 970 (priority << CMD_HDR_PRIORITY_OFF) | 971 (1 << CMD_HDR_MODE_OFF) | /* ini mode */ 972 (1 << CMD_HDR_CMD_OFF)); /* ssp */ 973 974 dw1 = 1 << CMD_HDR_VERIFY_DTL_OFF; 975 976 if (tmf) { 977 dw1 |= 3 << CMD_HDR_SSP_FRAME_TYPE_OFF; 978 } else { 979 switch (scsi_cmnd->sc_data_direction) { 980 case DMA_TO_DEVICE: 981 dw1 |= 2 << CMD_HDR_SSP_FRAME_TYPE_OFF; 982 has_data = 1; 983 break; 984 case DMA_FROM_DEVICE: 985 dw1 |= 1 << CMD_HDR_SSP_FRAME_TYPE_OFF; 986 has_data = 1; 987 break; 988 default: 989 dw1 |= 0 << CMD_HDR_SSP_FRAME_TYPE_OFF; 990 } 991 } 992 993 /* map itct entry */ 994 dw1 |= sas_dev->device_id << CMD_HDR_DEVICE_ID_OFF; 995 hdr->dw1 = cpu_to_le32(dw1); 996 997 if (tmf) { 998 dw2 = ((sizeof(struct ssp_tmf_iu) + 999 sizeof(struct ssp_frame_hdr)+3)/4) << 1000 CMD_HDR_CFL_OFF; 1001 } else { 1002 dw2 = ((sizeof(struct ssp_command_iu) + 1003 sizeof(struct ssp_frame_hdr)+3)/4) << 1004 CMD_HDR_CFL_OFF; 1005 } 1006 1007 dw2 |= (HISI_SAS_MAX_SSP_RESP_SZ/4) << CMD_HDR_MRFL_OFF; 1008 1009 hdr->transfer_tags = cpu_to_le32(slot->idx << CMD_HDR_IPTT_OFF); 1010 1011 if (has_data) 1012 prep_prd_sge_v1_hw(hisi_hba, slot, hdr, task->scatter, 1013 slot->n_elem); 1014 1015 hdr->data_transfer_len = cpu_to_le32(task->total_xfer_len); 1016 hdr->cmd_table_addr = cpu_to_le64(hisi_sas_cmd_hdr_addr_dma(slot)); 1017 hdr->sts_buffer_addr = cpu_to_le64(hisi_sas_status_buf_addr_dma(slot)); 1018 1019 buf_cmd = hisi_sas_cmd_hdr_addr_mem(slot) + 1020 sizeof(struct ssp_frame_hdr); 1021 if (task->ssp_task.enable_first_burst) { 1022 fburst = (1 << 7); 1023 dw2 |= 1 << CMD_HDR_FIRST_BURST_OFF; 1024 } 1025 hdr->dw2 = cpu_to_le32(dw2); 1026 1027 memcpy(buf_cmd, &task->ssp_task.LUN, 8); 1028 if (!tmf) { 1029 buf_cmd[9] = fburst | task->ssp_task.task_attr | 1030 (task->ssp_task.task_prio << 3); 1031 memcpy(buf_cmd + 12, task->ssp_task.cmd->cmnd, 1032 task->ssp_task.cmd->cmd_len); 1033 } else { 1034 buf_cmd[10] = tmf->tmf; 1035 switch (tmf->tmf) { 1036 case TMF_ABORT_TASK: 1037 case TMF_QUERY_TASK: 1038 buf_cmd[12] = 1039 (tmf->tag_of_task_to_be_managed >> 8) & 0xff; 1040 buf_cmd[13] = 1041 tmf->tag_of_task_to_be_managed & 0xff; 1042 break; 1043 default: 1044 break; 1045 } 1046 } 1047 } 1048 1049 /* by default, task resp is complete */ 1050 static void slot_err_v1_hw(struct hisi_hba *hisi_hba, 1051 struct sas_task *task, 1052 struct hisi_sas_slot *slot) 1053 { 1054 struct task_status_struct *ts = &task->task_status; 1055 struct hisi_sas_err_record_v1 *err_record = 1056 hisi_sas_status_buf_addr_mem(slot); 1057 struct device *dev = hisi_hba->dev; 1058 1059 switch (task->task_proto) { 1060 case SAS_PROTOCOL_SSP: 1061 { 1062 int error = -1; 1063 u32 dma_err_type = le32_to_cpu(err_record->dma_err_type); 1064 u32 dma_tx_err_type = ((dma_err_type & 1065 ERR_HDR_DMA_TX_ERR_TYPE_MSK)) >> 1066 ERR_HDR_DMA_TX_ERR_TYPE_OFF; 1067 u32 dma_rx_err_type = ((dma_err_type & 1068 ERR_HDR_DMA_RX_ERR_TYPE_MSK)) >> 1069 ERR_HDR_DMA_RX_ERR_TYPE_OFF; 1070 u32 trans_tx_fail_type = 1071 le32_to_cpu(err_record->trans_tx_fail_type); 1072 u32 trans_rx_fail_type = 1073 le32_to_cpu(err_record->trans_rx_fail_type); 1074 1075 if (dma_tx_err_type) { 1076 /* dma tx err */ 1077 error = ffs(dma_tx_err_type) 1078 - 1 + DMA_TX_ERR_BASE; 1079 } else if (dma_rx_err_type) { 1080 /* dma rx err */ 1081 error = ffs(dma_rx_err_type) 1082 - 1 + DMA_RX_ERR_BASE; 1083 } else if (trans_tx_fail_type) { 1084 /* trans tx err */ 1085 error = ffs(trans_tx_fail_type) 1086 - 1 + TRANS_TX_FAIL_BASE; 1087 } else if (trans_rx_fail_type) { 1088 /* trans rx err */ 1089 error = ffs(trans_rx_fail_type) 1090 - 1 + TRANS_RX_FAIL_BASE; 1091 } 1092 1093 switch (error) { 1094 case DMA_TX_DATA_UNDERFLOW_ERR: 1095 case DMA_RX_DATA_UNDERFLOW_ERR: 1096 { 1097 ts->residual = 0; 1098 ts->stat = SAS_DATA_UNDERRUN; 1099 break; 1100 } 1101 case DMA_TX_DATA_SGL_OVERFLOW_ERR: 1102 case DMA_TX_DIF_SGL_OVERFLOW_ERR: 1103 case DMA_TX_XFER_RDY_LENGTH_OVERFLOW_ERR: 1104 case DMA_RX_DATA_OVERFLOW_ERR: 1105 case TRANS_RX_FRAME_OVERRUN_ERR: 1106 case TRANS_RX_LINK_BUF_OVERRUN_ERR: 1107 { 1108 ts->stat = SAS_DATA_OVERRUN; 1109 ts->residual = 0; 1110 break; 1111 } 1112 case TRANS_TX_PHY_NOT_ENABLE_ERR: 1113 { 1114 ts->stat = SAS_PHY_DOWN; 1115 break; 1116 } 1117 case TRANS_TX_OPEN_REJCT_WRONG_DEST_ERR: 1118 case TRANS_TX_OPEN_REJCT_ZONE_VIOLATION_ERR: 1119 case TRANS_TX_OPEN_REJCT_BY_OTHER_ERR: 1120 case TRANS_TX_OPEN_REJCT_AIP_TIMEOUT_ERR: 1121 case TRANS_TX_OPEN_REJCT_STP_BUSY_ERR: 1122 case TRANS_TX_OPEN_REJCT_PROTOCOL_NOT_SUPPORT_ERR: 1123 case TRANS_TX_OPEN_REJCT_RATE_NOT_SUPPORT_ERR: 1124 case TRANS_TX_OPEN_REJCT_BAD_DEST_ERR: 1125 case TRANS_TX_OPEN_BREAK_RECEIVE_ERR: 1126 case TRANS_TX_OPEN_REJCT_PATHWAY_BLOCKED_ERR: 1127 case TRANS_TX_OPEN_REJCT_NO_DEST_ERR: 1128 case TRANS_TX_OPEN_RETRY_ERR: 1129 { 1130 ts->stat = SAS_OPEN_REJECT; 1131 ts->open_rej_reason = SAS_OREJ_UNKNOWN; 1132 break; 1133 } 1134 case TRANS_TX_OPEN_TIMEOUT_ERR: 1135 { 1136 ts->stat = SAS_OPEN_TO; 1137 break; 1138 } 1139 case TRANS_TX_NAK_RECEIVE_ERR: 1140 case TRANS_TX_ACK_NAK_TIMEOUT_ERR: 1141 { 1142 ts->stat = SAS_NAK_R_ERR; 1143 break; 1144 } 1145 case TRANS_TX_CREDIT_TIMEOUT_ERR: 1146 case TRANS_TX_CLOSE_NORMAL_ERR: 1147 { 1148 /* This will request a retry */ 1149 ts->stat = SAS_QUEUE_FULL; 1150 slot->abort = 1; 1151 break; 1152 } 1153 default: 1154 { 1155 ts->stat = SAM_STAT_CHECK_CONDITION; 1156 break; 1157 } 1158 } 1159 } 1160 break; 1161 case SAS_PROTOCOL_SMP: 1162 ts->stat = SAM_STAT_CHECK_CONDITION; 1163 break; 1164 1165 case SAS_PROTOCOL_SATA: 1166 case SAS_PROTOCOL_STP: 1167 case SAS_PROTOCOL_SATA | SAS_PROTOCOL_STP: 1168 { 1169 dev_err(dev, "slot err: SATA/STP not supported\n"); 1170 } 1171 break; 1172 default: 1173 break; 1174 } 1175 1176 } 1177 1178 static void slot_complete_v1_hw(struct hisi_hba *hisi_hba, 1179 struct hisi_sas_slot *slot) 1180 { 1181 struct sas_task *task = slot->task; 1182 struct hisi_sas_device *sas_dev; 1183 struct device *dev = hisi_hba->dev; 1184 struct task_status_struct *ts; 1185 struct domain_device *device; 1186 struct hisi_sas_complete_v1_hdr *complete_queue = 1187 hisi_hba->complete_hdr[slot->cmplt_queue]; 1188 struct hisi_sas_complete_v1_hdr *complete_hdr; 1189 unsigned long flags; 1190 u32 cmplt_hdr_data; 1191 1192 complete_hdr = &complete_queue[slot->cmplt_queue_slot]; 1193 cmplt_hdr_data = le32_to_cpu(complete_hdr->data); 1194 1195 if (unlikely(!task || !task->lldd_task || !task->dev)) 1196 return; 1197 1198 ts = &task->task_status; 1199 device = task->dev; 1200 sas_dev = device->lldd_dev; 1201 1202 spin_lock_irqsave(&task->task_state_lock, flags); 1203 task->task_state_flags &= 1204 ~(SAS_TASK_STATE_PENDING | SAS_TASK_AT_INITIATOR); 1205 task->task_state_flags |= SAS_TASK_STATE_DONE; 1206 spin_unlock_irqrestore(&task->task_state_lock, flags); 1207 1208 memset(ts, 0, sizeof(*ts)); 1209 ts->resp = SAS_TASK_COMPLETE; 1210 1211 if (unlikely(!sas_dev)) { 1212 dev_dbg(dev, "slot complete: port has no device\n"); 1213 ts->stat = SAS_PHY_DOWN; 1214 goto out; 1215 } 1216 1217 if (cmplt_hdr_data & CMPLT_HDR_IO_CFG_ERR_MSK) { 1218 u32 info_reg = hisi_sas_read32(hisi_hba, HGC_INVLD_DQE_INFO); 1219 1220 if (info_reg & HGC_INVLD_DQE_INFO_DQ_MSK) 1221 dev_err(dev, "slot complete: [%d:%d] has dq IPTT err\n", 1222 slot->cmplt_queue, slot->cmplt_queue_slot); 1223 1224 if (info_reg & HGC_INVLD_DQE_INFO_TYPE_MSK) 1225 dev_err(dev, "slot complete: [%d:%d] has dq type err\n", 1226 slot->cmplt_queue, slot->cmplt_queue_slot); 1227 1228 if (info_reg & HGC_INVLD_DQE_INFO_FORCE_MSK) 1229 dev_err(dev, "slot complete: [%d:%d] has dq force phy err\n", 1230 slot->cmplt_queue, slot->cmplt_queue_slot); 1231 1232 if (info_reg & HGC_INVLD_DQE_INFO_PHY_MSK) 1233 dev_err(dev, "slot complete: [%d:%d] has dq phy id err\n", 1234 slot->cmplt_queue, slot->cmplt_queue_slot); 1235 1236 if (info_reg & HGC_INVLD_DQE_INFO_ABORT_MSK) 1237 dev_err(dev, "slot complete: [%d:%d] has dq abort flag err\n", 1238 slot->cmplt_queue, slot->cmplt_queue_slot); 1239 1240 if (info_reg & HGC_INVLD_DQE_INFO_IPTT_OF_MSK) 1241 dev_err(dev, "slot complete: [%d:%d] has dq IPTT or ICT err\n", 1242 slot->cmplt_queue, slot->cmplt_queue_slot); 1243 1244 if (info_reg & HGC_INVLD_DQE_INFO_SSP_ERR_MSK) 1245 dev_err(dev, "slot complete: [%d:%d] has dq SSP frame type err\n", 1246 slot->cmplt_queue, slot->cmplt_queue_slot); 1247 1248 if (info_reg & HGC_INVLD_DQE_INFO_OFL_MSK) 1249 dev_err(dev, "slot complete: [%d:%d] has dq order frame len err\n", 1250 slot->cmplt_queue, slot->cmplt_queue_slot); 1251 1252 ts->stat = SAS_OPEN_REJECT; 1253 ts->open_rej_reason = SAS_OREJ_UNKNOWN; 1254 goto out; 1255 } 1256 1257 if (cmplt_hdr_data & CMPLT_HDR_ERR_RCRD_XFRD_MSK && 1258 !(cmplt_hdr_data & CMPLT_HDR_RSPNS_XFRD_MSK)) { 1259 1260 slot_err_v1_hw(hisi_hba, task, slot); 1261 if (unlikely(slot->abort)) { 1262 sas_task_abort(task); 1263 return; 1264 } 1265 goto out; 1266 } 1267 1268 switch (task->task_proto) { 1269 case SAS_PROTOCOL_SSP: 1270 { 1271 struct hisi_sas_status_buffer *status_buffer = 1272 hisi_sas_status_buf_addr_mem(slot); 1273 struct ssp_response_iu *iu = (struct ssp_response_iu *) 1274 &status_buffer->iu[0]; 1275 1276 sas_ssp_task_response(dev, task, iu); 1277 break; 1278 } 1279 case SAS_PROTOCOL_SMP: 1280 { 1281 struct scatterlist *sg_resp = &task->smp_task.smp_resp; 1282 void *to = page_address(sg_page(sg_resp)); 1283 1284 ts->stat = SAM_STAT_GOOD; 1285 1286 dma_unmap_sg(dev, &task->smp_task.smp_req, 1, 1287 DMA_TO_DEVICE); 1288 memcpy(to + sg_resp->offset, 1289 hisi_sas_status_buf_addr_mem(slot) + 1290 sizeof(struct hisi_sas_err_record), 1291 sg_resp->length); 1292 break; 1293 } 1294 case SAS_PROTOCOL_SATA: 1295 case SAS_PROTOCOL_STP: 1296 case SAS_PROTOCOL_SATA | SAS_PROTOCOL_STP: 1297 dev_err(dev, "slot complete: SATA/STP not supported\n"); 1298 break; 1299 1300 default: 1301 ts->stat = SAM_STAT_CHECK_CONDITION; 1302 break; 1303 } 1304 1305 if (!slot->port->port_attached) { 1306 dev_err(dev, "slot complete: port %d has removed\n", 1307 slot->port->sas_port.id); 1308 ts->stat = SAS_PHY_DOWN; 1309 } 1310 1311 out: 1312 hisi_sas_slot_task_free(hisi_hba, task, slot); 1313 1314 if (task->task_done) 1315 task->task_done(task); 1316 } 1317 1318 /* Interrupts */ 1319 static irqreturn_t int_phyup_v1_hw(int irq_no, void *p) 1320 { 1321 struct hisi_sas_phy *phy = p; 1322 struct hisi_hba *hisi_hba = phy->hisi_hba; 1323 struct device *dev = hisi_hba->dev; 1324 struct asd_sas_phy *sas_phy = &phy->sas_phy; 1325 int i, phy_no = sas_phy->id; 1326 u32 irq_value, context, port_id, link_rate; 1327 u32 *frame_rcvd = (u32 *)sas_phy->frame_rcvd; 1328 struct sas_identify_frame *id = (struct sas_identify_frame *)frame_rcvd; 1329 irqreturn_t res = IRQ_HANDLED; 1330 unsigned long flags; 1331 1332 irq_value = hisi_sas_phy_read32(hisi_hba, phy_no, CHL_INT2); 1333 if (!(irq_value & CHL_INT2_SL_PHY_ENA_MSK)) { 1334 dev_dbg(dev, "phyup: irq_value = %x not set enable bit\n", 1335 irq_value); 1336 res = IRQ_NONE; 1337 goto end; 1338 } 1339 1340 context = hisi_sas_read32(hisi_hba, PHY_CONTEXT); 1341 if (context & 1 << phy_no) { 1342 dev_err(dev, "phyup: phy%d SATA attached equipment\n", 1343 phy_no); 1344 goto end; 1345 } 1346 1347 port_id = (hisi_sas_read32(hisi_hba, PHY_PORT_NUM_MA) >> (4 * phy_no)) 1348 & 0xf; 1349 if (port_id == 0xf) { 1350 dev_err(dev, "phyup: phy%d invalid portid\n", phy_no); 1351 res = IRQ_NONE; 1352 goto end; 1353 } 1354 1355 for (i = 0; i < 6; i++) { 1356 u32 idaf = hisi_sas_phy_read32(hisi_hba, phy_no, 1357 RX_IDAF_DWORD0 + (i * 4)); 1358 frame_rcvd[i] = __swab32(idaf); 1359 } 1360 1361 /* Get the linkrate */ 1362 link_rate = hisi_sas_read32(hisi_hba, PHY_CONN_RATE); 1363 link_rate = (link_rate >> (phy_no * 4)) & 0xf; 1364 sas_phy->linkrate = link_rate; 1365 sas_phy->oob_mode = SAS_OOB_MODE; 1366 memcpy(sas_phy->attached_sas_addr, 1367 &id->sas_addr, SAS_ADDR_SIZE); 1368 dev_info(dev, "phyup: phy%d link_rate=%d\n", 1369 phy_no, link_rate); 1370 phy->port_id = port_id; 1371 phy->phy_type &= ~(PORT_TYPE_SAS | PORT_TYPE_SATA); 1372 phy->phy_type |= PORT_TYPE_SAS; 1373 phy->phy_attached = 1; 1374 phy->identify.device_type = id->dev_type; 1375 phy->frame_rcvd_size = sizeof(struct sas_identify_frame); 1376 if (phy->identify.device_type == SAS_END_DEVICE) 1377 phy->identify.target_port_protocols = 1378 SAS_PROTOCOL_SSP; 1379 else if (phy->identify.device_type != SAS_PHY_UNUSED) 1380 phy->identify.target_port_protocols = 1381 SAS_PROTOCOL_SMP; 1382 hisi_sas_notify_phy_event(phy, HISI_PHYE_PHY_UP); 1383 1384 spin_lock_irqsave(&phy->lock, flags); 1385 if (phy->reset_completion) { 1386 phy->in_reset = 0; 1387 complete(phy->reset_completion); 1388 } 1389 spin_unlock_irqrestore(&phy->lock, flags); 1390 1391 end: 1392 hisi_sas_phy_write32(hisi_hba, phy_no, CHL_INT2, 1393 CHL_INT2_SL_PHY_ENA_MSK); 1394 1395 if (irq_value & CHL_INT2_SL_PHY_ENA_MSK) { 1396 u32 chl_int0 = hisi_sas_phy_read32(hisi_hba, phy_no, CHL_INT0); 1397 1398 chl_int0 &= ~CHL_INT0_PHYCTRL_NOTRDY_MSK; 1399 hisi_sas_phy_write32(hisi_hba, phy_no, CHL_INT0, chl_int0); 1400 hisi_sas_phy_write32(hisi_hba, phy_no, CHL_INT0_MSK, 0x3ce3ee); 1401 } 1402 1403 return res; 1404 } 1405 1406 static irqreturn_t int_bcast_v1_hw(int irq, void *p) 1407 { 1408 struct hisi_sas_phy *phy = p; 1409 struct hisi_hba *hisi_hba = phy->hisi_hba; 1410 struct asd_sas_phy *sas_phy = &phy->sas_phy; 1411 struct device *dev = hisi_hba->dev; 1412 int phy_no = sas_phy->id; 1413 u32 irq_value; 1414 irqreturn_t res = IRQ_HANDLED; 1415 1416 irq_value = hisi_sas_phy_read32(hisi_hba, phy_no, CHL_INT2); 1417 1418 if (!(irq_value & CHL_INT2_SL_RX_BC_ACK_MSK)) { 1419 dev_err(dev, "bcast: irq_value = %x not set enable bit\n", 1420 irq_value); 1421 res = IRQ_NONE; 1422 goto end; 1423 } 1424 1425 if (!test_bit(HISI_SAS_RESET_BIT, &hisi_hba->flags)) 1426 sas_notify_port_event(sas_phy, PORTE_BROADCAST_RCVD, 1427 GFP_ATOMIC); 1428 1429 end: 1430 hisi_sas_phy_write32(hisi_hba, phy_no, CHL_INT2, 1431 CHL_INT2_SL_RX_BC_ACK_MSK); 1432 1433 return res; 1434 } 1435 1436 static irqreturn_t int_abnormal_v1_hw(int irq, void *p) 1437 { 1438 struct hisi_sas_phy *phy = p; 1439 struct hisi_hba *hisi_hba = phy->hisi_hba; 1440 struct device *dev = hisi_hba->dev; 1441 struct asd_sas_phy *sas_phy = &phy->sas_phy; 1442 u32 irq_value, irq_mask_old; 1443 int phy_no = sas_phy->id; 1444 1445 /* mask_int0 */ 1446 irq_mask_old = hisi_sas_phy_read32(hisi_hba, phy_no, CHL_INT0_MSK); 1447 hisi_sas_phy_write32(hisi_hba, phy_no, CHL_INT0_MSK, 0x3fffff); 1448 1449 /* read int0 */ 1450 irq_value = hisi_sas_phy_read32(hisi_hba, phy_no, CHL_INT0); 1451 1452 if (irq_value & CHL_INT0_PHYCTRL_NOTRDY_MSK) { 1453 u32 phy_state = hisi_sas_read32(hisi_hba, PHY_STATE); 1454 1455 hisi_sas_phy_down(hisi_hba, phy_no, 1456 (phy_state & 1 << phy_no) ? 1 : 0, 1457 GFP_ATOMIC); 1458 } 1459 1460 if (irq_value & CHL_INT0_ID_TIMEOUT_MSK) 1461 dev_dbg(dev, "abnormal: ID_TIMEOUT phy%d identify timeout\n", 1462 phy_no); 1463 1464 if (irq_value & CHL_INT0_DWS_LOST_MSK) 1465 dev_dbg(dev, "abnormal: DWS_LOST phy%d dws lost\n", phy_no); 1466 1467 if (irq_value & CHL_INT0_SN_FAIL_NGR_MSK) 1468 dev_dbg(dev, "abnormal: SN_FAIL_NGR phy%d sn fail ngr\n", 1469 phy_no); 1470 1471 if (irq_value & CHL_INT0_SL_IDAF_FAIL_MSK || 1472 irq_value & CHL_INT0_SL_OPAF_FAIL_MSK) 1473 dev_dbg(dev, "abnormal: SL_ID/OPAF_FAIL phy%d check adr frm err\n", 1474 phy_no); 1475 1476 if (irq_value & CHL_INT0_SL_PS_FAIL_OFF) 1477 dev_dbg(dev, "abnormal: SL_PS_FAIL phy%d fail\n", phy_no); 1478 1479 /* write to zero */ 1480 hisi_sas_phy_write32(hisi_hba, phy_no, CHL_INT0, irq_value); 1481 1482 if (irq_value & CHL_INT0_PHYCTRL_NOTRDY_MSK) 1483 hisi_sas_phy_write32(hisi_hba, phy_no, CHL_INT0_MSK, 1484 0x3fffff & ~CHL_INT0_MSK_PHYCTRL_NOTRDY_MSK); 1485 else 1486 hisi_sas_phy_write32(hisi_hba, phy_no, CHL_INT0_MSK, 1487 irq_mask_old); 1488 1489 return IRQ_HANDLED; 1490 } 1491 1492 static irqreturn_t cq_interrupt_v1_hw(int irq, void *p) 1493 { 1494 struct hisi_sas_cq *cq = p; 1495 struct hisi_hba *hisi_hba = cq->hisi_hba; 1496 struct hisi_sas_slot *slot; 1497 int queue = cq->id; 1498 struct hisi_sas_complete_v1_hdr *complete_queue = 1499 (struct hisi_sas_complete_v1_hdr *) 1500 hisi_hba->complete_hdr[queue]; 1501 u32 rd_point = cq->rd_point, wr_point; 1502 1503 spin_lock(&hisi_hba->lock); 1504 hisi_sas_write32(hisi_hba, OQ_INT_SRC, 1 << queue); 1505 wr_point = hisi_sas_read32(hisi_hba, 1506 COMPL_Q_0_WR_PTR + (0x14 * queue)); 1507 1508 while (rd_point != wr_point) { 1509 struct hisi_sas_complete_v1_hdr *complete_hdr; 1510 int idx; 1511 u32 cmplt_hdr_data; 1512 1513 complete_hdr = &complete_queue[rd_point]; 1514 cmplt_hdr_data = le32_to_cpu(complete_hdr->data); 1515 idx = (cmplt_hdr_data & CMPLT_HDR_IPTT_MSK) >> 1516 CMPLT_HDR_IPTT_OFF; 1517 slot = &hisi_hba->slot_info[idx]; 1518 1519 /* The completion queue and queue slot index are not 1520 * necessarily the same as the delivery queue and 1521 * queue slot index. 1522 */ 1523 slot->cmplt_queue_slot = rd_point; 1524 slot->cmplt_queue = queue; 1525 slot_complete_v1_hw(hisi_hba, slot); 1526 1527 if (++rd_point >= HISI_SAS_QUEUE_SLOTS) 1528 rd_point = 0; 1529 } 1530 1531 /* update rd_point */ 1532 cq->rd_point = rd_point; 1533 hisi_sas_write32(hisi_hba, COMPL_Q_0_RD_PTR + (0x14 * queue), rd_point); 1534 spin_unlock(&hisi_hba->lock); 1535 1536 return IRQ_HANDLED; 1537 } 1538 1539 static irqreturn_t fatal_ecc_int_v1_hw(int irq, void *p) 1540 { 1541 struct hisi_hba *hisi_hba = p; 1542 struct device *dev = hisi_hba->dev; 1543 u32 ecc_int = hisi_sas_read32(hisi_hba, SAS_ECC_INTR); 1544 1545 if (ecc_int & SAS_ECC_INTR_DQ_ECC1B_MSK) { 1546 u32 ecc_err = hisi_sas_read32(hisi_hba, HGC_ECC_ERR); 1547 1548 panic("%s: Fatal DQ 1b ECC interrupt (0x%x)\n", 1549 dev_name(dev), ecc_err); 1550 } 1551 1552 if (ecc_int & SAS_ECC_INTR_DQ_ECCBAD_MSK) { 1553 u32 addr = (hisi_sas_read32(hisi_hba, HGC_DQ_ECC_ADDR) & 1554 HGC_DQ_ECC_ADDR_BAD_MSK) >> 1555 HGC_DQ_ECC_ADDR_BAD_OFF; 1556 1557 panic("%s: Fatal DQ RAM ECC interrupt @ 0x%08x\n", 1558 dev_name(dev), addr); 1559 } 1560 1561 if (ecc_int & SAS_ECC_INTR_IOST_ECC1B_MSK) { 1562 u32 ecc_err = hisi_sas_read32(hisi_hba, HGC_ECC_ERR); 1563 1564 panic("%s: Fatal IOST 1b ECC interrupt (0x%x)\n", 1565 dev_name(dev), ecc_err); 1566 } 1567 1568 if (ecc_int & SAS_ECC_INTR_IOST_ECCBAD_MSK) { 1569 u32 addr = (hisi_sas_read32(hisi_hba, HGC_IOST_ECC_ADDR) & 1570 HGC_IOST_ECC_ADDR_BAD_MSK) >> 1571 HGC_IOST_ECC_ADDR_BAD_OFF; 1572 1573 panic("%s: Fatal IOST RAM ECC interrupt @ 0x%08x\n", 1574 dev_name(dev), addr); 1575 } 1576 1577 if (ecc_int & SAS_ECC_INTR_ITCT_ECCBAD_MSK) { 1578 u32 addr = (hisi_sas_read32(hisi_hba, HGC_ITCT_ECC_ADDR) & 1579 HGC_ITCT_ECC_ADDR_BAD_MSK) >> 1580 HGC_ITCT_ECC_ADDR_BAD_OFF; 1581 1582 panic("%s: Fatal TCT RAM ECC interrupt @ 0x%08x\n", 1583 dev_name(dev), addr); 1584 } 1585 1586 if (ecc_int & SAS_ECC_INTR_ITCT_ECC1B_MSK) { 1587 u32 ecc_err = hisi_sas_read32(hisi_hba, HGC_ECC_ERR); 1588 1589 panic("%s: Fatal ITCT 1b ECC interrupt (0x%x)\n", 1590 dev_name(dev), ecc_err); 1591 } 1592 1593 hisi_sas_write32(hisi_hba, SAS_ECC_INTR, ecc_int | 0x3f); 1594 1595 return IRQ_HANDLED; 1596 } 1597 1598 static irqreturn_t fatal_axi_int_v1_hw(int irq, void *p) 1599 { 1600 struct hisi_hba *hisi_hba = p; 1601 struct device *dev = hisi_hba->dev; 1602 u32 axi_int = hisi_sas_read32(hisi_hba, ENT_INT_SRC2); 1603 u32 axi_info = hisi_sas_read32(hisi_hba, HGC_AXI_FIFO_ERR_INFO); 1604 1605 if (axi_int & ENT_INT_SRC2_DQ_CFG_ERR_MSK) 1606 panic("%s: Fatal DQ_CFG_ERR interrupt (0x%x)\n", 1607 dev_name(dev), axi_info); 1608 1609 if (axi_int & ENT_INT_SRC2_CQ_CFG_ERR_MSK) 1610 panic("%s: Fatal CQ_CFG_ERR interrupt (0x%x)\n", 1611 dev_name(dev), axi_info); 1612 1613 if (axi_int & ENT_INT_SRC2_AXI_WRONG_INT_MSK) 1614 panic("%s: Fatal AXI_WRONG_INT interrupt (0x%x)\n", 1615 dev_name(dev), axi_info); 1616 1617 if (axi_int & ENT_INT_SRC2_AXI_OVERLF_INT_MSK) 1618 panic("%s: Fatal AXI_OVERLF_INT incorrect interrupt (0x%x)\n", 1619 dev_name(dev), axi_info); 1620 1621 hisi_sas_write32(hisi_hba, ENT_INT_SRC2, axi_int | 0x30000000); 1622 1623 return IRQ_HANDLED; 1624 } 1625 1626 static irq_handler_t phy_interrupts[HISI_SAS_PHY_INT_NR] = { 1627 int_bcast_v1_hw, 1628 int_phyup_v1_hw, 1629 int_abnormal_v1_hw 1630 }; 1631 1632 static irq_handler_t fatal_interrupts[HISI_SAS_MAX_QUEUES] = { 1633 fatal_ecc_int_v1_hw, 1634 fatal_axi_int_v1_hw 1635 }; 1636 1637 static int interrupt_init_v1_hw(struct hisi_hba *hisi_hba) 1638 { 1639 struct platform_device *pdev = hisi_hba->platform_dev; 1640 struct device *dev = &pdev->dev; 1641 int i, j, irq, rc, idx; 1642 1643 for (i = 0; i < hisi_hba->n_phy; i++) { 1644 struct hisi_sas_phy *phy = &hisi_hba->phy[i]; 1645 1646 idx = i * HISI_SAS_PHY_INT_NR; 1647 for (j = 0; j < HISI_SAS_PHY_INT_NR; j++, idx++) { 1648 irq = platform_get_irq(pdev, idx); 1649 if (!irq) { 1650 dev_err(dev, "irq init: fail map phy interrupt %d\n", 1651 idx); 1652 return -ENOENT; 1653 } 1654 1655 rc = devm_request_irq(dev, irq, phy_interrupts[j], 0, 1656 DRV_NAME " phy", phy); 1657 if (rc) { 1658 dev_err(dev, "irq init: could not request phy interrupt %d, rc=%d\n", 1659 irq, rc); 1660 return -ENOENT; 1661 } 1662 } 1663 } 1664 1665 idx = hisi_hba->n_phy * HISI_SAS_PHY_INT_NR; 1666 for (i = 0; i < hisi_hba->queue_count; i++, idx++) { 1667 irq = platform_get_irq(pdev, idx); 1668 if (!irq) { 1669 dev_err(dev, "irq init: could not map cq interrupt %d\n", 1670 idx); 1671 return -ENOENT; 1672 } 1673 1674 rc = devm_request_irq(dev, irq, cq_interrupt_v1_hw, 0, 1675 DRV_NAME " cq", &hisi_hba->cq[i]); 1676 if (rc) { 1677 dev_err(dev, "irq init: could not request cq interrupt %d, rc=%d\n", 1678 irq, rc); 1679 return -ENOENT; 1680 } 1681 } 1682 1683 idx = (hisi_hba->n_phy * HISI_SAS_PHY_INT_NR) + hisi_hba->queue_count; 1684 for (i = 0; i < HISI_SAS_FATAL_INT_NR; i++, idx++) { 1685 irq = platform_get_irq(pdev, idx); 1686 if (!irq) { 1687 dev_err(dev, "irq init: could not map fatal interrupt %d\n", 1688 idx); 1689 return -ENOENT; 1690 } 1691 1692 rc = devm_request_irq(dev, irq, fatal_interrupts[i], 0, 1693 DRV_NAME " fatal", hisi_hba); 1694 if (rc) { 1695 dev_err(dev, "irq init: could not request fatal interrupt %d, rc=%d\n", 1696 irq, rc); 1697 return -ENOENT; 1698 } 1699 } 1700 1701 hisi_hba->cq_nvecs = hisi_hba->queue_count; 1702 1703 return 0; 1704 } 1705 1706 static int interrupt_openall_v1_hw(struct hisi_hba *hisi_hba) 1707 { 1708 int i; 1709 u32 val; 1710 1711 for (i = 0; i < hisi_hba->n_phy; i++) { 1712 /* Clear interrupt status */ 1713 val = hisi_sas_phy_read32(hisi_hba, i, CHL_INT0); 1714 hisi_sas_phy_write32(hisi_hba, i, CHL_INT0, val); 1715 val = hisi_sas_phy_read32(hisi_hba, i, CHL_INT1); 1716 hisi_sas_phy_write32(hisi_hba, i, CHL_INT1, val); 1717 val = hisi_sas_phy_read32(hisi_hba, i, CHL_INT2); 1718 hisi_sas_phy_write32(hisi_hba, i, CHL_INT2, val); 1719 1720 /* Unmask interrupt */ 1721 hisi_sas_phy_write32(hisi_hba, i, CHL_INT0_MSK, 0x3ce3ee); 1722 hisi_sas_phy_write32(hisi_hba, i, CHL_INT1_MSK, 0x17fff); 1723 hisi_sas_phy_write32(hisi_hba, i, CHL_INT2_MSK, 0x8000012a); 1724 1725 /* bypass chip bug mask abnormal intr */ 1726 hisi_sas_phy_write32(hisi_hba, i, CHL_INT0_MSK, 1727 0x3fffff & ~CHL_INT0_MSK_PHYCTRL_NOTRDY_MSK); 1728 } 1729 1730 return 0; 1731 } 1732 1733 static int hisi_sas_v1_init(struct hisi_hba *hisi_hba) 1734 { 1735 int rc; 1736 1737 rc = hw_init_v1_hw(hisi_hba); 1738 if (rc) 1739 return rc; 1740 1741 rc = interrupt_init_v1_hw(hisi_hba); 1742 if (rc) 1743 return rc; 1744 1745 rc = interrupt_openall_v1_hw(hisi_hba); 1746 if (rc) 1747 return rc; 1748 1749 return 0; 1750 } 1751 1752 static struct device_attribute *host_attrs_v1_hw[] = { 1753 &dev_attr_phy_event_threshold, 1754 NULL 1755 }; 1756 1757 static struct scsi_host_template sht_v1_hw = { 1758 .name = DRV_NAME, 1759 .proc_name = DRV_NAME, 1760 .module = THIS_MODULE, 1761 .queuecommand = sas_queuecommand, 1762 .dma_need_drain = ata_scsi_dma_need_drain, 1763 .target_alloc = sas_target_alloc, 1764 .slave_configure = hisi_sas_slave_configure, 1765 .scan_finished = hisi_sas_scan_finished, 1766 .scan_start = hisi_sas_scan_start, 1767 .change_queue_depth = sas_change_queue_depth, 1768 .bios_param = sas_bios_param, 1769 .this_id = -1, 1770 .sg_tablesize = HISI_SAS_SGE_PAGE_CNT, 1771 .max_sectors = SCSI_DEFAULT_MAX_SECTORS, 1772 .eh_device_reset_handler = sas_eh_device_reset_handler, 1773 .eh_target_reset_handler = sas_eh_target_reset_handler, 1774 .target_destroy = sas_target_destroy, 1775 .ioctl = sas_ioctl, 1776 #ifdef CONFIG_COMPAT 1777 .compat_ioctl = sas_ioctl, 1778 #endif 1779 .shost_attrs = host_attrs_v1_hw, 1780 .host_reset = hisi_sas_host_reset, 1781 }; 1782 1783 static const struct hisi_sas_hw hisi_sas_v1_hw = { 1784 .hw_init = hisi_sas_v1_init, 1785 .setup_itct = setup_itct_v1_hw, 1786 .sl_notify_ssp = sl_notify_ssp_v1_hw, 1787 .clear_itct = clear_itct_v1_hw, 1788 .prep_smp = prep_smp_v1_hw, 1789 .prep_ssp = prep_ssp_v1_hw, 1790 .start_delivery = start_delivery_v1_hw, 1791 .phys_init = phys_init_v1_hw, 1792 .phy_start = start_phy_v1_hw, 1793 .phy_disable = disable_phy_v1_hw, 1794 .phy_hard_reset = phy_hard_reset_v1_hw, 1795 .phy_set_linkrate = phy_set_linkrate_v1_hw, 1796 .phy_get_max_linkrate = phy_get_max_linkrate_v1_hw, 1797 .get_wideport_bitmap = get_wideport_bitmap_v1_hw, 1798 .complete_hdr_size = sizeof(struct hisi_sas_complete_v1_hdr), 1799 .sht = &sht_v1_hw, 1800 }; 1801 1802 static int hisi_sas_v1_probe(struct platform_device *pdev) 1803 { 1804 return hisi_sas_probe(pdev, &hisi_sas_v1_hw); 1805 } 1806 1807 static int hisi_sas_v1_remove(struct platform_device *pdev) 1808 { 1809 return hisi_sas_remove(pdev); 1810 } 1811 1812 static const struct of_device_id sas_v1_of_match[] = { 1813 { .compatible = "hisilicon,hip05-sas-v1",}, 1814 {}, 1815 }; 1816 MODULE_DEVICE_TABLE(of, sas_v1_of_match); 1817 1818 static const struct acpi_device_id sas_v1_acpi_match[] = { 1819 { "HISI0161", 0 }, 1820 { } 1821 }; 1822 1823 MODULE_DEVICE_TABLE(acpi, sas_v1_acpi_match); 1824 1825 static struct platform_driver hisi_sas_v1_driver = { 1826 .probe = hisi_sas_v1_probe, 1827 .remove = hisi_sas_v1_remove, 1828 .driver = { 1829 .name = DRV_NAME, 1830 .of_match_table = sas_v1_of_match, 1831 .acpi_match_table = ACPI_PTR(sas_v1_acpi_match), 1832 }, 1833 }; 1834 1835 module_platform_driver(hisi_sas_v1_driver); 1836 1837 MODULE_LICENSE("GPL"); 1838 MODULE_AUTHOR("John Garry <john.garry@huawei.com>"); 1839 MODULE_DESCRIPTION("HISILICON SAS controller v1 hw driver"); 1840 MODULE_ALIAS("platform:" DRV_NAME); 1841