1 /* 2 * Copyright (c) 2017 Hisilicon Limited. 3 * 4 * This program is free software; you can redistribute it and/or modify 5 * it under the terms of the GNU General Public License as published by 6 * the Free Software Foundation; either version 2 of the License, or 7 * (at your option) any later version. 8 * 9 */ 10 11 #include "hisi_sas.h" 12 #define DRV_NAME "hisi_sas_v3_hw" 13 14 /* global registers need init*/ 15 #define DLVRY_QUEUE_ENABLE 0x0 16 #define IOST_BASE_ADDR_LO 0x8 17 #define IOST_BASE_ADDR_HI 0xc 18 #define ITCT_BASE_ADDR_LO 0x10 19 #define ITCT_BASE_ADDR_HI 0x14 20 #define IO_BROKEN_MSG_ADDR_LO 0x18 21 #define IO_BROKEN_MSG_ADDR_HI 0x1c 22 #define PHY_CONTEXT 0x20 23 #define PHY_STATE 0x24 24 #define PHY_PORT_NUM_MA 0x28 25 #define PHY_CONN_RATE 0x30 26 #define ITCT_CLR 0x44 27 #define ITCT_CLR_EN_OFF 16 28 #define ITCT_CLR_EN_MSK (0x1 << ITCT_CLR_EN_OFF) 29 #define ITCT_DEV_OFF 0 30 #define ITCT_DEV_MSK (0x7ff << ITCT_DEV_OFF) 31 #define IO_SATA_BROKEN_MSG_ADDR_LO 0x58 32 #define IO_SATA_BROKEN_MSG_ADDR_HI 0x5c 33 #define SATA_INITI_D2H_STORE_ADDR_LO 0x60 34 #define SATA_INITI_D2H_STORE_ADDR_HI 0x64 35 #define CFG_MAX_TAG 0x68 36 #define HGC_SAS_TX_OPEN_FAIL_RETRY_CTRL 0x84 37 #define HGC_SAS_TXFAIL_RETRY_CTRL 0x88 38 #define HGC_GET_ITV_TIME 0x90 39 #define DEVICE_MSG_WORK_MODE 0x94 40 #define OPENA_WT_CONTI_TIME 0x9c 41 #define I_T_NEXUS_LOSS_TIME 0xa0 42 #define MAX_CON_TIME_LIMIT_TIME 0xa4 43 #define BUS_INACTIVE_LIMIT_TIME 0xa8 44 #define REJECT_TO_OPEN_LIMIT_TIME 0xac 45 #define CQ_INT_CONVERGE_EN 0xb0 46 #define CFG_AGING_TIME 0xbc 47 #define HGC_DFX_CFG2 0xc0 48 #define CFG_ABT_SET_QUERY_IPTT 0xd4 49 #define CFG_SET_ABORTED_IPTT_OFF 0 50 #define CFG_SET_ABORTED_IPTT_MSK (0xfff << CFG_SET_ABORTED_IPTT_OFF) 51 #define CFG_SET_ABORTED_EN_OFF 12 52 #define CFG_ABT_SET_IPTT_DONE 0xd8 53 #define CFG_ABT_SET_IPTT_DONE_OFF 0 54 #define HGC_IOMB_PROC1_STATUS 0x104 55 #define CHNL_INT_STATUS 0x148 56 #define HGC_AXI_FIFO_ERR_INFO 0x154 57 #define AXI_ERR_INFO_OFF 0 58 #define AXI_ERR_INFO_MSK (0xff << AXI_ERR_INFO_OFF) 59 #define FIFO_ERR_INFO_OFF 8 60 #define FIFO_ERR_INFO_MSK (0xff << FIFO_ERR_INFO_OFF) 61 #define INT_COAL_EN 0x19c 62 #define OQ_INT_COAL_TIME 0x1a0 63 #define OQ_INT_COAL_CNT 0x1a4 64 #define ENT_INT_COAL_TIME 0x1a8 65 #define ENT_INT_COAL_CNT 0x1ac 66 #define OQ_INT_SRC 0x1b0 67 #define OQ_INT_SRC_MSK 0x1b4 68 #define ENT_INT_SRC1 0x1b8 69 #define ENT_INT_SRC1_D2H_FIS_CH0_OFF 0 70 #define ENT_INT_SRC1_D2H_FIS_CH0_MSK (0x1 << ENT_INT_SRC1_D2H_FIS_CH0_OFF) 71 #define ENT_INT_SRC1_D2H_FIS_CH1_OFF 8 72 #define ENT_INT_SRC1_D2H_FIS_CH1_MSK (0x1 << ENT_INT_SRC1_D2H_FIS_CH1_OFF) 73 #define ENT_INT_SRC2 0x1bc 74 #define ENT_INT_SRC3 0x1c0 75 #define ENT_INT_SRC3_WP_DEPTH_OFF 8 76 #define ENT_INT_SRC3_IPTT_SLOT_NOMATCH_OFF 9 77 #define ENT_INT_SRC3_RP_DEPTH_OFF 10 78 #define ENT_INT_SRC3_AXI_OFF 11 79 #define ENT_INT_SRC3_FIFO_OFF 12 80 #define ENT_INT_SRC3_LM_OFF 14 81 #define ENT_INT_SRC3_ITC_INT_OFF 15 82 #define ENT_INT_SRC3_ITC_INT_MSK (0x1 << ENT_INT_SRC3_ITC_INT_OFF) 83 #define ENT_INT_SRC3_ABT_OFF 16 84 #define ENT_INT_SRC_MSK1 0x1c4 85 #define ENT_INT_SRC_MSK2 0x1c8 86 #define ENT_INT_SRC_MSK3 0x1cc 87 #define ENT_INT_SRC_MSK3_ENT95_MSK_OFF 31 88 #define CHNL_PHYUPDOWN_INT_MSK 0x1d0 89 #define CHNL_ENT_INT_MSK 0x1d4 90 #define HGC_COM_INT_MSK 0x1d8 91 #define ENT_INT_SRC_MSK3_ENT95_MSK_MSK (0x1 << ENT_INT_SRC_MSK3_ENT95_MSK_OFF) 92 #define SAS_ECC_INTR 0x1e8 93 #define SAS_ECC_INTR_MSK 0x1ec 94 #define HGC_ERR_STAT_EN 0x238 95 #define CQE_SEND_CNT 0x248 96 #define DLVRY_Q_0_BASE_ADDR_LO 0x260 97 #define DLVRY_Q_0_BASE_ADDR_HI 0x264 98 #define DLVRY_Q_0_DEPTH 0x268 99 #define DLVRY_Q_0_WR_PTR 0x26c 100 #define DLVRY_Q_0_RD_PTR 0x270 101 #define HYPER_STREAM_ID_EN_CFG 0xc80 102 #define OQ0_INT_SRC_MSK 0xc90 103 #define COMPL_Q_0_BASE_ADDR_LO 0x4e0 104 #define COMPL_Q_0_BASE_ADDR_HI 0x4e4 105 #define COMPL_Q_0_DEPTH 0x4e8 106 #define COMPL_Q_0_WR_PTR 0x4ec 107 #define COMPL_Q_0_RD_PTR 0x4f0 108 #define AWQOS_AWCACHE_CFG 0xc84 109 #define ARQOS_ARCACHE_CFG 0xc88 110 #define HILINK_ERR_DFX 0xe04 111 #define SAS_GPIO_CFG_0 0x1000 112 #define SAS_GPIO_CFG_1 0x1004 113 #define SAS_GPIO_TX_0_1 0x1040 114 #define SAS_CFG_DRIVE_VLD 0x1070 115 116 /* phy registers requiring init */ 117 #define PORT_BASE (0x2000) 118 #define PHY_CFG (PORT_BASE + 0x0) 119 #define HARD_PHY_LINKRATE (PORT_BASE + 0x4) 120 #define PHY_CFG_ENA_OFF 0 121 #define PHY_CFG_ENA_MSK (0x1 << PHY_CFG_ENA_OFF) 122 #define PHY_CFG_DC_OPT_OFF 2 123 #define PHY_CFG_DC_OPT_MSK (0x1 << PHY_CFG_DC_OPT_OFF) 124 #define PHY_CFG_PHY_RST_OFF 3 125 #define PHY_CFG_PHY_RST_MSK (0x1 << PHY_CFG_PHY_RST_OFF) 126 #define PROG_PHY_LINK_RATE (PORT_BASE + 0x8) 127 #define PHY_CTRL (PORT_BASE + 0x14) 128 #define PHY_CTRL_RESET_OFF 0 129 #define PHY_CTRL_RESET_MSK (0x1 << PHY_CTRL_RESET_OFF) 130 #define CMD_HDR_PIR_OFF 8 131 #define CMD_HDR_PIR_MSK (0x1 << CMD_HDR_PIR_OFF) 132 #define SL_CFG (PORT_BASE + 0x84) 133 #define AIP_LIMIT (PORT_BASE + 0x90) 134 #define SL_CONTROL (PORT_BASE + 0x94) 135 #define SL_CONTROL_NOTIFY_EN_OFF 0 136 #define SL_CONTROL_NOTIFY_EN_MSK (0x1 << SL_CONTROL_NOTIFY_EN_OFF) 137 #define SL_CTA_OFF 17 138 #define SL_CTA_MSK (0x1 << SL_CTA_OFF) 139 #define RX_PRIMS_STATUS (PORT_BASE + 0x98) 140 #define RX_BCAST_CHG_OFF 1 141 #define RX_BCAST_CHG_MSK (0x1 << RX_BCAST_CHG_OFF) 142 #define TX_ID_DWORD0 (PORT_BASE + 0x9c) 143 #define TX_ID_DWORD1 (PORT_BASE + 0xa0) 144 #define TX_ID_DWORD2 (PORT_BASE + 0xa4) 145 #define TX_ID_DWORD3 (PORT_BASE + 0xa8) 146 #define TX_ID_DWORD4 (PORT_BASE + 0xaC) 147 #define TX_ID_DWORD5 (PORT_BASE + 0xb0) 148 #define TX_ID_DWORD6 (PORT_BASE + 0xb4) 149 #define TXID_AUTO (PORT_BASE + 0xb8) 150 #define CT3_OFF 1 151 #define CT3_MSK (0x1 << CT3_OFF) 152 #define TX_HARDRST_OFF 2 153 #define TX_HARDRST_MSK (0x1 << TX_HARDRST_OFF) 154 #define RX_IDAF_DWORD0 (PORT_BASE + 0xc4) 155 #define RXOP_CHECK_CFG_H (PORT_BASE + 0xfc) 156 #define STP_LINK_TIMER (PORT_BASE + 0x120) 157 #define STP_LINK_TIMEOUT_STATE (PORT_BASE + 0x124) 158 #define CON_CFG_DRIVER (PORT_BASE + 0x130) 159 #define SAS_SSP_CON_TIMER_CFG (PORT_BASE + 0x134) 160 #define SAS_SMP_CON_TIMER_CFG (PORT_BASE + 0x138) 161 #define SAS_STP_CON_TIMER_CFG (PORT_BASE + 0x13c) 162 #define CHL_INT0 (PORT_BASE + 0x1b4) 163 #define CHL_INT0_HOTPLUG_TOUT_OFF 0 164 #define CHL_INT0_HOTPLUG_TOUT_MSK (0x1 << CHL_INT0_HOTPLUG_TOUT_OFF) 165 #define CHL_INT0_SL_RX_BCST_ACK_OFF 1 166 #define CHL_INT0_SL_RX_BCST_ACK_MSK (0x1 << CHL_INT0_SL_RX_BCST_ACK_OFF) 167 #define CHL_INT0_SL_PHY_ENABLE_OFF 2 168 #define CHL_INT0_SL_PHY_ENABLE_MSK (0x1 << CHL_INT0_SL_PHY_ENABLE_OFF) 169 #define CHL_INT0_NOT_RDY_OFF 4 170 #define CHL_INT0_NOT_RDY_MSK (0x1 << CHL_INT0_NOT_RDY_OFF) 171 #define CHL_INT0_PHY_RDY_OFF 5 172 #define CHL_INT0_PHY_RDY_MSK (0x1 << CHL_INT0_PHY_RDY_OFF) 173 #define CHL_INT1 (PORT_BASE + 0x1b8) 174 #define CHL_INT1_DMAC_TX_ECC_ERR_OFF 15 175 #define CHL_INT1_DMAC_TX_ECC_ERR_MSK (0x1 << CHL_INT1_DMAC_TX_ECC_ERR_OFF) 176 #define CHL_INT1_DMAC_RX_ECC_ERR_OFF 17 177 #define CHL_INT1_DMAC_RX_ECC_ERR_MSK (0x1 << CHL_INT1_DMAC_RX_ECC_ERR_OFF) 178 #define CHL_INT1_DMAC_TX_AXI_WR_ERR_OFF 19 179 #define CHL_INT1_DMAC_TX_AXI_RD_ERR_OFF 20 180 #define CHL_INT1_DMAC_RX_AXI_WR_ERR_OFF 21 181 #define CHL_INT1_DMAC_RX_AXI_RD_ERR_OFF 22 182 #define CHL_INT2 (PORT_BASE + 0x1bc) 183 #define CHL_INT2_SL_IDAF_TOUT_CONF_OFF 0 184 #define CHL_INT2_RX_INVLD_DW_OFF 30 185 #define CHL_INT2_STP_LINK_TIMEOUT_OFF 31 186 #define CHL_INT0_MSK (PORT_BASE + 0x1c0) 187 #define CHL_INT1_MSK (PORT_BASE + 0x1c4) 188 #define CHL_INT2_MSK (PORT_BASE + 0x1c8) 189 #define SAS_EC_INT_COAL_TIME (PORT_BASE + 0x1cc) 190 #define CHL_INT_COAL_EN (PORT_BASE + 0x1d0) 191 #define SAS_RX_TRAIN_TIMER (PORT_BASE + 0x2a4) 192 #define PHY_CTRL_RDY_MSK (PORT_BASE + 0x2b0) 193 #define PHYCTRL_NOT_RDY_MSK (PORT_BASE + 0x2b4) 194 #define PHYCTRL_DWS_RESET_MSK (PORT_BASE + 0x2b8) 195 #define PHYCTRL_PHY_ENA_MSK (PORT_BASE + 0x2bc) 196 #define SL_RX_BCAST_CHK_MSK (PORT_BASE + 0x2c0) 197 #define PHYCTRL_OOB_RESTART_MSK (PORT_BASE + 0x2c4) 198 #define DMA_TX_STATUS (PORT_BASE + 0x2d0) 199 #define DMA_TX_STATUS_BUSY_OFF 0 200 #define DMA_TX_STATUS_BUSY_MSK (0x1 << DMA_TX_STATUS_BUSY_OFF) 201 #define DMA_RX_STATUS (PORT_BASE + 0x2e8) 202 #define DMA_RX_STATUS_BUSY_OFF 0 203 #define DMA_RX_STATUS_BUSY_MSK (0x1 << DMA_RX_STATUS_BUSY_OFF) 204 205 #define COARSETUNE_TIME (PORT_BASE + 0x304) 206 #define ERR_CNT_DWS_LOST (PORT_BASE + 0x380) 207 #define ERR_CNT_RESET_PROB (PORT_BASE + 0x384) 208 #define ERR_CNT_INVLD_DW (PORT_BASE + 0x390) 209 #define ERR_CNT_CODE_ERR (PORT_BASE + 0x394) 210 #define ERR_CNT_DISP_ERR (PORT_BASE + 0x398) 211 212 #define DEFAULT_ITCT_HW 2048 /* reset value, not reprogrammed */ 213 #if (HISI_SAS_MAX_DEVICES > DEFAULT_ITCT_HW) 214 #error Max ITCT exceeded 215 #endif 216 217 #define AXI_MASTER_CFG_BASE (0x5000) 218 #define AM_CTRL_GLOBAL (0x0) 219 #define AM_CTRL_SHUTDOWN_REQ_OFF 0 220 #define AM_CTRL_SHUTDOWN_REQ_MSK (0x1 << AM_CTRL_SHUTDOWN_REQ_OFF) 221 #define AM_CURR_TRANS_RETURN (0x150) 222 223 #define AM_CFG_MAX_TRANS (0x5010) 224 #define AM_CFG_SINGLE_PORT_MAX_TRANS (0x5014) 225 #define AXI_CFG (0x5100) 226 #define AM_ROB_ECC_ERR_ADDR (0x510c) 227 #define AM_ROB_ECC_ONEBIT_ERR_ADDR_OFF 0 228 #define AM_ROB_ECC_ONEBIT_ERR_ADDR_MSK (0xff << AM_ROB_ECC_ONEBIT_ERR_ADDR_OFF) 229 #define AM_ROB_ECC_MULBIT_ERR_ADDR_OFF 8 230 #define AM_ROB_ECC_MULBIT_ERR_ADDR_MSK (0xff << AM_ROB_ECC_MULBIT_ERR_ADDR_OFF) 231 232 /* RAS registers need init */ 233 #define RAS_BASE (0x6000) 234 #define SAS_RAS_INTR0 (RAS_BASE) 235 #define SAS_RAS_INTR1 (RAS_BASE + 0x04) 236 #define SAS_RAS_INTR0_MASK (RAS_BASE + 0x08) 237 #define SAS_RAS_INTR1_MASK (RAS_BASE + 0x0c) 238 #define CFG_SAS_RAS_INTR_MASK (RAS_BASE + 0x1c) 239 #define SAS_RAS_INTR2 (RAS_BASE + 0x20) 240 #define SAS_RAS_INTR2_MASK (RAS_BASE + 0x24) 241 242 /* HW dma structures */ 243 /* Delivery queue header */ 244 /* dw0 */ 245 #define CMD_HDR_ABORT_FLAG_OFF 0 246 #define CMD_HDR_ABORT_FLAG_MSK (0x3 << CMD_HDR_ABORT_FLAG_OFF) 247 #define CMD_HDR_ABORT_DEVICE_TYPE_OFF 2 248 #define CMD_HDR_ABORT_DEVICE_TYPE_MSK (0x1 << CMD_HDR_ABORT_DEVICE_TYPE_OFF) 249 #define CMD_HDR_RESP_REPORT_OFF 5 250 #define CMD_HDR_RESP_REPORT_MSK (0x1 << CMD_HDR_RESP_REPORT_OFF) 251 #define CMD_HDR_TLR_CTRL_OFF 6 252 #define CMD_HDR_TLR_CTRL_MSK (0x3 << CMD_HDR_TLR_CTRL_OFF) 253 #define CMD_HDR_PORT_OFF 18 254 #define CMD_HDR_PORT_MSK (0xf << CMD_HDR_PORT_OFF) 255 #define CMD_HDR_PRIORITY_OFF 27 256 #define CMD_HDR_PRIORITY_MSK (0x1 << CMD_HDR_PRIORITY_OFF) 257 #define CMD_HDR_CMD_OFF 29 258 #define CMD_HDR_CMD_MSK (0x7 << CMD_HDR_CMD_OFF) 259 /* dw1 */ 260 #define CMD_HDR_UNCON_CMD_OFF 3 261 #define CMD_HDR_DIR_OFF 5 262 #define CMD_HDR_DIR_MSK (0x3 << CMD_HDR_DIR_OFF) 263 #define CMD_HDR_RESET_OFF 7 264 #define CMD_HDR_RESET_MSK (0x1 << CMD_HDR_RESET_OFF) 265 #define CMD_HDR_VDTL_OFF 10 266 #define CMD_HDR_VDTL_MSK (0x1 << CMD_HDR_VDTL_OFF) 267 #define CMD_HDR_FRAME_TYPE_OFF 11 268 #define CMD_HDR_FRAME_TYPE_MSK (0x1f << CMD_HDR_FRAME_TYPE_OFF) 269 #define CMD_HDR_DEV_ID_OFF 16 270 #define CMD_HDR_DEV_ID_MSK (0xffff << CMD_HDR_DEV_ID_OFF) 271 /* dw2 */ 272 #define CMD_HDR_CFL_OFF 0 273 #define CMD_HDR_CFL_MSK (0x1ff << CMD_HDR_CFL_OFF) 274 #define CMD_HDR_NCQ_TAG_OFF 10 275 #define CMD_HDR_NCQ_TAG_MSK (0x1f << CMD_HDR_NCQ_TAG_OFF) 276 #define CMD_HDR_MRFL_OFF 15 277 #define CMD_HDR_MRFL_MSK (0x1ff << CMD_HDR_MRFL_OFF) 278 #define CMD_HDR_SG_MOD_OFF 24 279 #define CMD_HDR_SG_MOD_MSK (0x3 << CMD_HDR_SG_MOD_OFF) 280 /* dw3 */ 281 #define CMD_HDR_IPTT_OFF 0 282 #define CMD_HDR_IPTT_MSK (0xffff << CMD_HDR_IPTT_OFF) 283 /* dw6 */ 284 #define CMD_HDR_DIF_SGL_LEN_OFF 0 285 #define CMD_HDR_DIF_SGL_LEN_MSK (0xffff << CMD_HDR_DIF_SGL_LEN_OFF) 286 #define CMD_HDR_DATA_SGL_LEN_OFF 16 287 #define CMD_HDR_DATA_SGL_LEN_MSK (0xffff << CMD_HDR_DATA_SGL_LEN_OFF) 288 /* dw7 */ 289 #define CMD_HDR_ADDR_MODE_SEL_OFF 15 290 #define CMD_HDR_ADDR_MODE_SEL_MSK (1 << CMD_HDR_ADDR_MODE_SEL_OFF) 291 #define CMD_HDR_ABORT_IPTT_OFF 16 292 #define CMD_HDR_ABORT_IPTT_MSK (0xffff << CMD_HDR_ABORT_IPTT_OFF) 293 294 /* Completion header */ 295 /* dw0 */ 296 #define CMPLT_HDR_CMPLT_OFF 0 297 #define CMPLT_HDR_CMPLT_MSK (0x3 << CMPLT_HDR_CMPLT_OFF) 298 #define CMPLT_HDR_ERROR_PHASE_OFF 2 299 #define CMPLT_HDR_ERROR_PHASE_MSK (0xff << CMPLT_HDR_ERROR_PHASE_OFF) 300 #define CMPLT_HDR_RSPNS_XFRD_OFF 10 301 #define CMPLT_HDR_RSPNS_XFRD_MSK (0x1 << CMPLT_HDR_RSPNS_XFRD_OFF) 302 #define CMPLT_HDR_ERX_OFF 12 303 #define CMPLT_HDR_ERX_MSK (0x1 << CMPLT_HDR_ERX_OFF) 304 #define CMPLT_HDR_ABORT_STAT_OFF 13 305 #define CMPLT_HDR_ABORT_STAT_MSK (0x7 << CMPLT_HDR_ABORT_STAT_OFF) 306 /* abort_stat */ 307 #define STAT_IO_NOT_VALID 0x1 308 #define STAT_IO_NO_DEVICE 0x2 309 #define STAT_IO_COMPLETE 0x3 310 #define STAT_IO_ABORTED 0x4 311 /* dw1 */ 312 #define CMPLT_HDR_IPTT_OFF 0 313 #define CMPLT_HDR_IPTT_MSK (0xffff << CMPLT_HDR_IPTT_OFF) 314 #define CMPLT_HDR_DEV_ID_OFF 16 315 #define CMPLT_HDR_DEV_ID_MSK (0xffff << CMPLT_HDR_DEV_ID_OFF) 316 /* dw3 */ 317 #define CMPLT_HDR_IO_IN_TARGET_OFF 17 318 #define CMPLT_HDR_IO_IN_TARGET_MSK (0x1 << CMPLT_HDR_IO_IN_TARGET_OFF) 319 320 /* ITCT header */ 321 /* qw0 */ 322 #define ITCT_HDR_DEV_TYPE_OFF 0 323 #define ITCT_HDR_DEV_TYPE_MSK (0x3 << ITCT_HDR_DEV_TYPE_OFF) 324 #define ITCT_HDR_VALID_OFF 2 325 #define ITCT_HDR_VALID_MSK (0x1 << ITCT_HDR_VALID_OFF) 326 #define ITCT_HDR_MCR_OFF 5 327 #define ITCT_HDR_MCR_MSK (0xf << ITCT_HDR_MCR_OFF) 328 #define ITCT_HDR_VLN_OFF 9 329 #define ITCT_HDR_VLN_MSK (0xf << ITCT_HDR_VLN_OFF) 330 #define ITCT_HDR_SMP_TIMEOUT_OFF 16 331 #define ITCT_HDR_AWT_CONTINUE_OFF 25 332 #define ITCT_HDR_PORT_ID_OFF 28 333 #define ITCT_HDR_PORT_ID_MSK (0xf << ITCT_HDR_PORT_ID_OFF) 334 /* qw2 */ 335 #define ITCT_HDR_INLT_OFF 0 336 #define ITCT_HDR_INLT_MSK (0xffffULL << ITCT_HDR_INLT_OFF) 337 #define ITCT_HDR_RTOLT_OFF 48 338 #define ITCT_HDR_RTOLT_MSK (0xffffULL << ITCT_HDR_RTOLT_OFF) 339 340 struct hisi_sas_protect_iu_v3_hw { 341 u32 dw0; 342 u32 lbrtcv; 343 u32 lbrtgv; 344 u32 dw3; 345 u32 dw4; 346 u32 dw5; 347 u32 rsv; 348 }; 349 350 struct hisi_sas_complete_v3_hdr { 351 __le32 dw0; 352 __le32 dw1; 353 __le32 act; 354 __le32 dw3; 355 }; 356 357 struct hisi_sas_err_record_v3 { 358 /* dw0 */ 359 __le32 trans_tx_fail_type; 360 361 /* dw1 */ 362 __le32 trans_rx_fail_type; 363 364 /* dw2 */ 365 __le16 dma_tx_err_type; 366 __le16 sipc_rx_err_type; 367 368 /* dw3 */ 369 __le32 dma_rx_err_type; 370 }; 371 372 #define RX_DATA_LEN_UNDERFLOW_OFF 6 373 #define RX_DATA_LEN_UNDERFLOW_MSK (1 << RX_DATA_LEN_UNDERFLOW_OFF) 374 375 #define HISI_SAS_COMMAND_ENTRIES_V3_HW 4096 376 #define HISI_SAS_MSI_COUNT_V3_HW 32 377 378 #define DIR_NO_DATA 0 379 #define DIR_TO_INI 1 380 #define DIR_TO_DEVICE 2 381 #define DIR_RESERVED 3 382 383 #define FIS_CMD_IS_UNCONSTRAINED(fis) \ 384 ((fis.command == ATA_CMD_READ_LOG_EXT) || \ 385 (fis.command == ATA_CMD_READ_LOG_DMA_EXT) || \ 386 ((fis.command == ATA_CMD_DEV_RESET) && \ 387 ((fis.control & ATA_SRST) != 0))) 388 389 #define T10_INSRT_EN_OFF 0 390 #define T10_INSRT_EN_MSK (1 << T10_INSRT_EN_OFF) 391 #define T10_RMV_EN_OFF 1 392 #define T10_RMV_EN_MSK (1 << T10_RMV_EN_OFF) 393 #define T10_RPLC_EN_OFF 2 394 #define T10_RPLC_EN_MSK (1 << T10_RPLC_EN_OFF) 395 #define T10_CHK_EN_OFF 3 396 #define T10_CHK_EN_MSK (1 << T10_CHK_EN_OFF) 397 #define INCR_LBRT_OFF 5 398 #define INCR_LBRT_MSK (1 << INCR_LBRT_OFF) 399 #define USR_DATA_BLOCK_SZ_OFF 20 400 #define USR_DATA_BLOCK_SZ_MSK (0x3 << USR_DATA_BLOCK_SZ_OFF) 401 #define T10_CHK_MSK_OFF 16 402 403 static bool hisi_sas_intr_conv; 404 MODULE_PARM_DESC(intr_conv, "interrupt converge enable (0-1)"); 405 406 /* permit overriding the host protection capabilities mask (EEDP/T10 PI) */ 407 static int prot_mask; 408 module_param(prot_mask, int, 0); 409 MODULE_PARM_DESC(prot_mask, " host protection capabilities mask, def=0x0 "); 410 411 static u32 hisi_sas_read32(struct hisi_hba *hisi_hba, u32 off) 412 { 413 void __iomem *regs = hisi_hba->regs + off; 414 415 return readl(regs); 416 } 417 418 static u32 hisi_sas_read32_relaxed(struct hisi_hba *hisi_hba, u32 off) 419 { 420 void __iomem *regs = hisi_hba->regs + off; 421 422 return readl_relaxed(regs); 423 } 424 425 static void hisi_sas_write32(struct hisi_hba *hisi_hba, u32 off, u32 val) 426 { 427 void __iomem *regs = hisi_hba->regs + off; 428 429 writel(val, regs); 430 } 431 432 static void hisi_sas_phy_write32(struct hisi_hba *hisi_hba, int phy_no, 433 u32 off, u32 val) 434 { 435 void __iomem *regs = hisi_hba->regs + (0x400 * phy_no) + off; 436 437 writel(val, regs); 438 } 439 440 static u32 hisi_sas_phy_read32(struct hisi_hba *hisi_hba, 441 int phy_no, u32 off) 442 { 443 void __iomem *regs = hisi_hba->regs + (0x400 * phy_no) + off; 444 445 return readl(regs); 446 } 447 448 #define hisi_sas_read32_poll_timeout(off, val, cond, delay_us, \ 449 timeout_us) \ 450 ({ \ 451 void __iomem *regs = hisi_hba->regs + off; \ 452 readl_poll_timeout(regs, val, cond, delay_us, timeout_us); \ 453 }) 454 455 #define hisi_sas_read32_poll_timeout_atomic(off, val, cond, delay_us, \ 456 timeout_us) \ 457 ({ \ 458 void __iomem *regs = hisi_hba->regs + off; \ 459 readl_poll_timeout_atomic(regs, val, cond, delay_us, timeout_us);\ 460 }) 461 462 static void init_reg_v3_hw(struct hisi_hba *hisi_hba) 463 { 464 struct pci_dev *pdev = hisi_hba->pci_dev; 465 int i; 466 467 /* Global registers init */ 468 hisi_sas_write32(hisi_hba, DLVRY_QUEUE_ENABLE, 469 (u32)((1ULL << hisi_hba->queue_count) - 1)); 470 hisi_sas_write32(hisi_hba, CFG_MAX_TAG, 0xfff0400); 471 hisi_sas_write32(hisi_hba, HGC_SAS_TXFAIL_RETRY_CTRL, 0x108); 472 hisi_sas_write32(hisi_hba, CFG_AGING_TIME, 0x1); 473 hisi_sas_write32(hisi_hba, INT_COAL_EN, 0x1); 474 hisi_sas_write32(hisi_hba, OQ_INT_COAL_TIME, 0x1); 475 hisi_sas_write32(hisi_hba, OQ_INT_COAL_CNT, 0x1); 476 hisi_sas_write32(hisi_hba, CQ_INT_CONVERGE_EN, 477 hisi_sas_intr_conv); 478 hisi_sas_write32(hisi_hba, OQ_INT_SRC, 0xffff); 479 hisi_sas_write32(hisi_hba, ENT_INT_SRC1, 0xffffffff); 480 hisi_sas_write32(hisi_hba, ENT_INT_SRC2, 0xffffffff); 481 hisi_sas_write32(hisi_hba, ENT_INT_SRC3, 0xffffffff); 482 hisi_sas_write32(hisi_hba, ENT_INT_SRC_MSK1, 0xfefefefe); 483 hisi_sas_write32(hisi_hba, ENT_INT_SRC_MSK2, 0xfefefefe); 484 if (pdev->revision >= 0x21) 485 hisi_sas_write32(hisi_hba, ENT_INT_SRC_MSK3, 0xffff7aff); 486 else 487 hisi_sas_write32(hisi_hba, ENT_INT_SRC_MSK3, 0xfffe20ff); 488 hisi_sas_write32(hisi_hba, CHNL_PHYUPDOWN_INT_MSK, 0x0); 489 hisi_sas_write32(hisi_hba, CHNL_ENT_INT_MSK, 0x0); 490 hisi_sas_write32(hisi_hba, HGC_COM_INT_MSK, 0x0); 491 hisi_sas_write32(hisi_hba, SAS_ECC_INTR_MSK, 0x0); 492 hisi_sas_write32(hisi_hba, AWQOS_AWCACHE_CFG, 0xf0f0); 493 hisi_sas_write32(hisi_hba, ARQOS_ARCACHE_CFG, 0xf0f0); 494 for (i = 0; i < hisi_hba->queue_count; i++) 495 hisi_sas_write32(hisi_hba, OQ0_INT_SRC_MSK+0x4*i, 0); 496 497 hisi_sas_write32(hisi_hba, HYPER_STREAM_ID_EN_CFG, 1); 498 499 for (i = 0; i < hisi_hba->n_phy; i++) { 500 struct hisi_sas_phy *phy = &hisi_hba->phy[i]; 501 struct asd_sas_phy *sas_phy = &phy->sas_phy; 502 u32 prog_phy_link_rate = 0x800; 503 504 if (!sas_phy->phy || (sas_phy->phy->maximum_linkrate < 505 SAS_LINK_RATE_1_5_GBPS)) { 506 prog_phy_link_rate = 0x855; 507 } else { 508 enum sas_linkrate max = sas_phy->phy->maximum_linkrate; 509 510 prog_phy_link_rate = 511 hisi_sas_get_prog_phy_linkrate_mask(max) | 512 0x800; 513 } 514 hisi_sas_phy_write32(hisi_hba, i, PROG_PHY_LINK_RATE, 515 prog_phy_link_rate); 516 hisi_sas_phy_write32(hisi_hba, i, SAS_RX_TRAIN_TIMER, 0x13e80); 517 hisi_sas_phy_write32(hisi_hba, i, CHL_INT0, 0xffffffff); 518 hisi_sas_phy_write32(hisi_hba, i, CHL_INT1, 0xffffffff); 519 hisi_sas_phy_write32(hisi_hba, i, CHL_INT2, 0xffffffff); 520 hisi_sas_phy_write32(hisi_hba, i, RXOP_CHECK_CFG_H, 0x1000); 521 if (pdev->revision >= 0x21) 522 hisi_sas_phy_write32(hisi_hba, i, CHL_INT1_MSK, 523 0xffffffff); 524 else 525 hisi_sas_phy_write32(hisi_hba, i, CHL_INT1_MSK, 526 0xff87ffff); 527 hisi_sas_phy_write32(hisi_hba, i, CHL_INT2_MSK, 0xffffbfe); 528 hisi_sas_phy_write32(hisi_hba, i, PHY_CTRL_RDY_MSK, 0x0); 529 hisi_sas_phy_write32(hisi_hba, i, PHYCTRL_NOT_RDY_MSK, 0x0); 530 hisi_sas_phy_write32(hisi_hba, i, PHYCTRL_DWS_RESET_MSK, 0x0); 531 hisi_sas_phy_write32(hisi_hba, i, PHYCTRL_PHY_ENA_MSK, 0x0); 532 hisi_sas_phy_write32(hisi_hba, i, SL_RX_BCAST_CHK_MSK, 0x0); 533 hisi_sas_phy_write32(hisi_hba, i, PHYCTRL_OOB_RESTART_MSK, 0x1); 534 hisi_sas_phy_write32(hisi_hba, i, STP_LINK_TIMER, 0x7f7a120); 535 hisi_sas_phy_write32(hisi_hba, i, CON_CFG_DRIVER, 0x2a0a01); 536 hisi_sas_phy_write32(hisi_hba, i, SAS_SSP_CON_TIMER_CFG, 0x32); 537 /* used for 12G negotiate */ 538 hisi_sas_phy_write32(hisi_hba, i, COARSETUNE_TIME, 0x1e); 539 hisi_sas_phy_write32(hisi_hba, i, AIP_LIMIT, 0x2ffff); 540 } 541 542 for (i = 0; i < hisi_hba->queue_count; i++) { 543 /* Delivery queue */ 544 hisi_sas_write32(hisi_hba, 545 DLVRY_Q_0_BASE_ADDR_HI + (i * 0x14), 546 upper_32_bits(hisi_hba->cmd_hdr_dma[i])); 547 548 hisi_sas_write32(hisi_hba, DLVRY_Q_0_BASE_ADDR_LO + (i * 0x14), 549 lower_32_bits(hisi_hba->cmd_hdr_dma[i])); 550 551 hisi_sas_write32(hisi_hba, DLVRY_Q_0_DEPTH + (i * 0x14), 552 HISI_SAS_QUEUE_SLOTS); 553 554 /* Completion queue */ 555 hisi_sas_write32(hisi_hba, COMPL_Q_0_BASE_ADDR_HI + (i * 0x14), 556 upper_32_bits(hisi_hba->complete_hdr_dma[i])); 557 558 hisi_sas_write32(hisi_hba, COMPL_Q_0_BASE_ADDR_LO + (i * 0x14), 559 lower_32_bits(hisi_hba->complete_hdr_dma[i])); 560 561 hisi_sas_write32(hisi_hba, COMPL_Q_0_DEPTH + (i * 0x14), 562 HISI_SAS_QUEUE_SLOTS); 563 } 564 565 /* itct */ 566 hisi_sas_write32(hisi_hba, ITCT_BASE_ADDR_LO, 567 lower_32_bits(hisi_hba->itct_dma)); 568 569 hisi_sas_write32(hisi_hba, ITCT_BASE_ADDR_HI, 570 upper_32_bits(hisi_hba->itct_dma)); 571 572 /* iost */ 573 hisi_sas_write32(hisi_hba, IOST_BASE_ADDR_LO, 574 lower_32_bits(hisi_hba->iost_dma)); 575 576 hisi_sas_write32(hisi_hba, IOST_BASE_ADDR_HI, 577 upper_32_bits(hisi_hba->iost_dma)); 578 579 /* breakpoint */ 580 hisi_sas_write32(hisi_hba, IO_BROKEN_MSG_ADDR_LO, 581 lower_32_bits(hisi_hba->breakpoint_dma)); 582 583 hisi_sas_write32(hisi_hba, IO_BROKEN_MSG_ADDR_HI, 584 upper_32_bits(hisi_hba->breakpoint_dma)); 585 586 /* SATA broken msg */ 587 hisi_sas_write32(hisi_hba, IO_SATA_BROKEN_MSG_ADDR_LO, 588 lower_32_bits(hisi_hba->sata_breakpoint_dma)); 589 590 hisi_sas_write32(hisi_hba, IO_SATA_BROKEN_MSG_ADDR_HI, 591 upper_32_bits(hisi_hba->sata_breakpoint_dma)); 592 593 /* SATA initial fis */ 594 hisi_sas_write32(hisi_hba, SATA_INITI_D2H_STORE_ADDR_LO, 595 lower_32_bits(hisi_hba->initial_fis_dma)); 596 597 hisi_sas_write32(hisi_hba, SATA_INITI_D2H_STORE_ADDR_HI, 598 upper_32_bits(hisi_hba->initial_fis_dma)); 599 600 /* RAS registers init */ 601 hisi_sas_write32(hisi_hba, SAS_RAS_INTR0_MASK, 0x0); 602 hisi_sas_write32(hisi_hba, SAS_RAS_INTR1_MASK, 0x0); 603 hisi_sas_write32(hisi_hba, SAS_RAS_INTR2_MASK, 0x0); 604 hisi_sas_write32(hisi_hba, CFG_SAS_RAS_INTR_MASK, 0x0); 605 606 /* LED registers init */ 607 hisi_sas_write32(hisi_hba, SAS_CFG_DRIVE_VLD, 0x80000ff); 608 hisi_sas_write32(hisi_hba, SAS_GPIO_TX_0_1, 0x80808080); 609 hisi_sas_write32(hisi_hba, SAS_GPIO_TX_0_1 + 0x4, 0x80808080); 610 /* Configure blink generator rate A to 1Hz and B to 4Hz */ 611 hisi_sas_write32(hisi_hba, SAS_GPIO_CFG_1, 0x121700); 612 hisi_sas_write32(hisi_hba, SAS_GPIO_CFG_0, 0x800000); 613 } 614 615 static void config_phy_opt_mode_v3_hw(struct hisi_hba *hisi_hba, int phy_no) 616 { 617 u32 cfg = hisi_sas_phy_read32(hisi_hba, phy_no, PHY_CFG); 618 619 cfg &= ~PHY_CFG_DC_OPT_MSK; 620 cfg |= 1 << PHY_CFG_DC_OPT_OFF; 621 hisi_sas_phy_write32(hisi_hba, phy_no, PHY_CFG, cfg); 622 } 623 624 static void config_id_frame_v3_hw(struct hisi_hba *hisi_hba, int phy_no) 625 { 626 struct sas_identify_frame identify_frame; 627 u32 *identify_buffer; 628 629 memset(&identify_frame, 0, sizeof(identify_frame)); 630 identify_frame.dev_type = SAS_END_DEVICE; 631 identify_frame.frame_type = 0; 632 identify_frame._un1 = 1; 633 identify_frame.initiator_bits = SAS_PROTOCOL_ALL; 634 identify_frame.target_bits = SAS_PROTOCOL_NONE; 635 memcpy(&identify_frame._un4_11[0], hisi_hba->sas_addr, SAS_ADDR_SIZE); 636 memcpy(&identify_frame.sas_addr[0], hisi_hba->sas_addr, SAS_ADDR_SIZE); 637 identify_frame.phy_id = phy_no; 638 identify_buffer = (u32 *)(&identify_frame); 639 640 hisi_sas_phy_write32(hisi_hba, phy_no, TX_ID_DWORD0, 641 __swab32(identify_buffer[0])); 642 hisi_sas_phy_write32(hisi_hba, phy_no, TX_ID_DWORD1, 643 __swab32(identify_buffer[1])); 644 hisi_sas_phy_write32(hisi_hba, phy_no, TX_ID_DWORD2, 645 __swab32(identify_buffer[2])); 646 hisi_sas_phy_write32(hisi_hba, phy_no, TX_ID_DWORD3, 647 __swab32(identify_buffer[3])); 648 hisi_sas_phy_write32(hisi_hba, phy_no, TX_ID_DWORD4, 649 __swab32(identify_buffer[4])); 650 hisi_sas_phy_write32(hisi_hba, phy_no, TX_ID_DWORD5, 651 __swab32(identify_buffer[5])); 652 } 653 654 static void setup_itct_v3_hw(struct hisi_hba *hisi_hba, 655 struct hisi_sas_device *sas_dev) 656 { 657 struct domain_device *device = sas_dev->sas_device; 658 struct device *dev = hisi_hba->dev; 659 u64 qw0, device_id = sas_dev->device_id; 660 struct hisi_sas_itct *itct = &hisi_hba->itct[device_id]; 661 struct domain_device *parent_dev = device->parent; 662 struct asd_sas_port *sas_port = device->port; 663 struct hisi_sas_port *port = to_hisi_sas_port(sas_port); 664 u64 sas_addr; 665 666 memset(itct, 0, sizeof(*itct)); 667 668 /* qw0 */ 669 qw0 = 0; 670 switch (sas_dev->dev_type) { 671 case SAS_END_DEVICE: 672 case SAS_EDGE_EXPANDER_DEVICE: 673 case SAS_FANOUT_EXPANDER_DEVICE: 674 qw0 = HISI_SAS_DEV_TYPE_SSP << ITCT_HDR_DEV_TYPE_OFF; 675 break; 676 case SAS_SATA_DEV: 677 case SAS_SATA_PENDING: 678 if (parent_dev && DEV_IS_EXPANDER(parent_dev->dev_type)) 679 qw0 = HISI_SAS_DEV_TYPE_STP << ITCT_HDR_DEV_TYPE_OFF; 680 else 681 qw0 = HISI_SAS_DEV_TYPE_SATA << ITCT_HDR_DEV_TYPE_OFF; 682 break; 683 default: 684 dev_warn(dev, "setup itct: unsupported dev type (%d)\n", 685 sas_dev->dev_type); 686 } 687 688 qw0 |= ((1 << ITCT_HDR_VALID_OFF) | 689 (device->linkrate << ITCT_HDR_MCR_OFF) | 690 (1 << ITCT_HDR_VLN_OFF) | 691 (0xfa << ITCT_HDR_SMP_TIMEOUT_OFF) | 692 (1 << ITCT_HDR_AWT_CONTINUE_OFF) | 693 (port->id << ITCT_HDR_PORT_ID_OFF)); 694 itct->qw0 = cpu_to_le64(qw0); 695 696 /* qw1 */ 697 memcpy(&sas_addr, device->sas_addr, SAS_ADDR_SIZE); 698 itct->sas_addr = cpu_to_le64(__swab64(sas_addr)); 699 700 /* qw2 */ 701 if (!dev_is_sata(device)) 702 itct->qw2 = cpu_to_le64((5000ULL << ITCT_HDR_INLT_OFF) | 703 (0x1ULL << ITCT_HDR_RTOLT_OFF)); 704 } 705 706 static void clear_itct_v3_hw(struct hisi_hba *hisi_hba, 707 struct hisi_sas_device *sas_dev) 708 { 709 DECLARE_COMPLETION_ONSTACK(completion); 710 u64 dev_id = sas_dev->device_id; 711 struct hisi_sas_itct *itct = &hisi_hba->itct[dev_id]; 712 u32 reg_val = hisi_sas_read32(hisi_hba, ENT_INT_SRC3); 713 714 sas_dev->completion = &completion; 715 716 /* clear the itct interrupt state */ 717 if (ENT_INT_SRC3_ITC_INT_MSK & reg_val) 718 hisi_sas_write32(hisi_hba, ENT_INT_SRC3, 719 ENT_INT_SRC3_ITC_INT_MSK); 720 721 /* clear the itct table*/ 722 reg_val = ITCT_CLR_EN_MSK | (dev_id & ITCT_DEV_MSK); 723 hisi_sas_write32(hisi_hba, ITCT_CLR, reg_val); 724 725 wait_for_completion(sas_dev->completion); 726 memset(itct, 0, sizeof(struct hisi_sas_itct)); 727 } 728 729 static void dereg_device_v3_hw(struct hisi_hba *hisi_hba, 730 struct domain_device *device) 731 { 732 struct hisi_sas_slot *slot, *slot2; 733 struct hisi_sas_device *sas_dev = device->lldd_dev; 734 u32 cfg_abt_set_query_iptt; 735 736 cfg_abt_set_query_iptt = hisi_sas_read32(hisi_hba, 737 CFG_ABT_SET_QUERY_IPTT); 738 list_for_each_entry_safe(slot, slot2, &sas_dev->list, entry) { 739 cfg_abt_set_query_iptt &= ~CFG_SET_ABORTED_IPTT_MSK; 740 cfg_abt_set_query_iptt |= (1 << CFG_SET_ABORTED_EN_OFF) | 741 (slot->idx << CFG_SET_ABORTED_IPTT_OFF); 742 hisi_sas_write32(hisi_hba, CFG_ABT_SET_QUERY_IPTT, 743 cfg_abt_set_query_iptt); 744 } 745 cfg_abt_set_query_iptt &= ~(1 << CFG_SET_ABORTED_EN_OFF); 746 hisi_sas_write32(hisi_hba, CFG_ABT_SET_QUERY_IPTT, 747 cfg_abt_set_query_iptt); 748 hisi_sas_write32(hisi_hba, CFG_ABT_SET_IPTT_DONE, 749 1 << CFG_ABT_SET_IPTT_DONE_OFF); 750 } 751 752 static int reset_hw_v3_hw(struct hisi_hba *hisi_hba) 753 { 754 struct device *dev = hisi_hba->dev; 755 int ret; 756 u32 val; 757 758 hisi_sas_write32(hisi_hba, DLVRY_QUEUE_ENABLE, 0); 759 760 /* Disable all of the PHYs */ 761 hisi_sas_stop_phys(hisi_hba); 762 udelay(50); 763 764 /* Ensure axi bus idle */ 765 ret = hisi_sas_read32_poll_timeout(AXI_CFG, val, !val, 766 20000, 1000000); 767 if (ret) { 768 dev_err(dev, "axi bus is not idle, ret = %d!\n", ret); 769 return -EIO; 770 } 771 772 if (ACPI_HANDLE(dev)) { 773 acpi_status s; 774 775 s = acpi_evaluate_object(ACPI_HANDLE(dev), "_RST", NULL, NULL); 776 if (ACPI_FAILURE(s)) { 777 dev_err(dev, "Reset failed\n"); 778 return -EIO; 779 } 780 } else { 781 dev_err(dev, "no reset method!\n"); 782 return -EINVAL; 783 } 784 785 return 0; 786 } 787 788 static int hw_init_v3_hw(struct hisi_hba *hisi_hba) 789 { 790 struct device *dev = hisi_hba->dev; 791 int rc; 792 793 rc = reset_hw_v3_hw(hisi_hba); 794 if (rc) { 795 dev_err(dev, "hisi_sas_reset_hw failed, rc=%d", rc); 796 return rc; 797 } 798 799 msleep(100); 800 init_reg_v3_hw(hisi_hba); 801 802 return 0; 803 } 804 805 static void enable_phy_v3_hw(struct hisi_hba *hisi_hba, int phy_no) 806 { 807 u32 cfg = hisi_sas_phy_read32(hisi_hba, phy_no, PHY_CFG); 808 809 cfg |= PHY_CFG_ENA_MSK; 810 cfg &= ~PHY_CFG_PHY_RST_MSK; 811 hisi_sas_phy_write32(hisi_hba, phy_no, PHY_CFG, cfg); 812 } 813 814 static void disable_phy_v3_hw(struct hisi_hba *hisi_hba, int phy_no) 815 { 816 u32 cfg = hisi_sas_phy_read32(hisi_hba, phy_no, PHY_CFG); 817 u32 state; 818 819 cfg &= ~PHY_CFG_ENA_MSK; 820 hisi_sas_phy_write32(hisi_hba, phy_no, PHY_CFG, cfg); 821 822 mdelay(50); 823 824 state = hisi_sas_read32(hisi_hba, PHY_STATE); 825 if (state & BIT(phy_no)) { 826 cfg |= PHY_CFG_PHY_RST_MSK; 827 hisi_sas_phy_write32(hisi_hba, phy_no, PHY_CFG, cfg); 828 } 829 } 830 831 static void start_phy_v3_hw(struct hisi_hba *hisi_hba, int phy_no) 832 { 833 config_id_frame_v3_hw(hisi_hba, phy_no); 834 config_phy_opt_mode_v3_hw(hisi_hba, phy_no); 835 enable_phy_v3_hw(hisi_hba, phy_no); 836 } 837 838 static void phy_hard_reset_v3_hw(struct hisi_hba *hisi_hba, int phy_no) 839 { 840 struct hisi_sas_phy *phy = &hisi_hba->phy[phy_no]; 841 u32 txid_auto; 842 843 disable_phy_v3_hw(hisi_hba, phy_no); 844 if (phy->identify.device_type == SAS_END_DEVICE) { 845 txid_auto = hisi_sas_phy_read32(hisi_hba, phy_no, TXID_AUTO); 846 hisi_sas_phy_write32(hisi_hba, phy_no, TXID_AUTO, 847 txid_auto | TX_HARDRST_MSK); 848 } 849 msleep(100); 850 start_phy_v3_hw(hisi_hba, phy_no); 851 } 852 853 static enum sas_linkrate phy_get_max_linkrate_v3_hw(void) 854 { 855 return SAS_LINK_RATE_12_0_GBPS; 856 } 857 858 static void phys_init_v3_hw(struct hisi_hba *hisi_hba) 859 { 860 int i; 861 862 for (i = 0; i < hisi_hba->n_phy; i++) { 863 struct hisi_sas_phy *phy = &hisi_hba->phy[i]; 864 struct asd_sas_phy *sas_phy = &phy->sas_phy; 865 866 if (!sas_phy->phy->enabled) 867 continue; 868 869 start_phy_v3_hw(hisi_hba, i); 870 } 871 } 872 873 static void sl_notify_ssp_v3_hw(struct hisi_hba *hisi_hba, int phy_no) 874 { 875 u32 sl_control; 876 877 sl_control = hisi_sas_phy_read32(hisi_hba, phy_no, SL_CONTROL); 878 sl_control |= SL_CONTROL_NOTIFY_EN_MSK; 879 hisi_sas_phy_write32(hisi_hba, phy_no, SL_CONTROL, sl_control); 880 msleep(1); 881 sl_control = hisi_sas_phy_read32(hisi_hba, phy_no, SL_CONTROL); 882 sl_control &= ~SL_CONTROL_NOTIFY_EN_MSK; 883 hisi_sas_phy_write32(hisi_hba, phy_no, SL_CONTROL, sl_control); 884 } 885 886 static int get_wideport_bitmap_v3_hw(struct hisi_hba *hisi_hba, int port_id) 887 { 888 int i, bitmap = 0; 889 u32 phy_port_num_ma = hisi_sas_read32(hisi_hba, PHY_PORT_NUM_MA); 890 u32 phy_state = hisi_sas_read32(hisi_hba, PHY_STATE); 891 892 for (i = 0; i < hisi_hba->n_phy; i++) 893 if (phy_state & BIT(i)) 894 if (((phy_port_num_ma >> (i * 4)) & 0xf) == port_id) 895 bitmap |= BIT(i); 896 897 return bitmap; 898 } 899 900 /** 901 * The callpath to this function and upto writing the write 902 * queue pointer should be safe from interruption. 903 */ 904 static int 905 get_free_slot_v3_hw(struct hisi_hba *hisi_hba, struct hisi_sas_dq *dq) 906 { 907 struct device *dev = hisi_hba->dev; 908 int queue = dq->id; 909 u32 r, w; 910 911 w = dq->wr_point; 912 r = hisi_sas_read32_relaxed(hisi_hba, 913 DLVRY_Q_0_RD_PTR + (queue * 0x14)); 914 if (r == (w+1) % HISI_SAS_QUEUE_SLOTS) { 915 dev_warn(dev, "full queue=%d r=%d w=%d\n", 916 queue, r, w); 917 return -EAGAIN; 918 } 919 920 dq->wr_point = (dq->wr_point + 1) % HISI_SAS_QUEUE_SLOTS; 921 922 return w; 923 } 924 925 static void start_delivery_v3_hw(struct hisi_sas_dq *dq) 926 { 927 struct hisi_hba *hisi_hba = dq->hisi_hba; 928 struct hisi_sas_slot *s, *s1, *s2 = NULL; 929 int dlvry_queue = dq->id; 930 int wp; 931 932 list_for_each_entry_safe(s, s1, &dq->list, delivery) { 933 if (!s->ready) 934 break; 935 s2 = s; 936 list_del(&s->delivery); 937 } 938 939 if (!s2) 940 return; 941 942 /* 943 * Ensure that memories for slots built on other CPUs is observed. 944 */ 945 smp_rmb(); 946 wp = (s2->dlvry_queue_slot + 1) % HISI_SAS_QUEUE_SLOTS; 947 948 hisi_sas_write32(hisi_hba, DLVRY_Q_0_WR_PTR + (dlvry_queue * 0x14), wp); 949 } 950 951 static void prep_prd_sge_v3_hw(struct hisi_hba *hisi_hba, 952 struct hisi_sas_slot *slot, 953 struct hisi_sas_cmd_hdr *hdr, 954 struct scatterlist *scatter, 955 int n_elem) 956 { 957 struct hisi_sas_sge_page *sge_page = hisi_sas_sge_addr_mem(slot); 958 struct scatterlist *sg; 959 int i; 960 961 for_each_sg(scatter, sg, n_elem, i) { 962 struct hisi_sas_sge *entry = &sge_page->sge[i]; 963 964 entry->addr = cpu_to_le64(sg_dma_address(sg)); 965 entry->page_ctrl_0 = entry->page_ctrl_1 = 0; 966 entry->data_len = cpu_to_le32(sg_dma_len(sg)); 967 entry->data_off = 0; 968 } 969 970 hdr->prd_table_addr = cpu_to_le64(hisi_sas_sge_addr_dma(slot)); 971 972 hdr->sg_len = cpu_to_le32(n_elem << CMD_HDR_DATA_SGL_LEN_OFF); 973 } 974 975 static u32 get_prot_chk_msk_v3_hw(struct scsi_cmnd *scsi_cmnd) 976 { 977 unsigned char prot_flags = scsi_cmnd->prot_flags; 978 979 if (prot_flags & SCSI_PROT_TRANSFER_PI) { 980 if (prot_flags & SCSI_PROT_REF_CHECK) 981 return 0xc << 16; 982 return 0xfc << 16; 983 } 984 return 0; 985 } 986 987 static void fill_prot_v3_hw(struct scsi_cmnd *scsi_cmnd, 988 struct hisi_sas_protect_iu_v3_hw *prot) 989 { 990 unsigned char prot_op = scsi_get_prot_op(scsi_cmnd); 991 unsigned int interval = scsi_prot_interval(scsi_cmnd); 992 u32 lbrt_chk_val = t10_pi_ref_tag(scsi_cmnd->request); 993 994 switch (prot_op) { 995 case SCSI_PROT_READ_STRIP: 996 prot->dw0 |= (T10_RMV_EN_MSK | T10_CHK_EN_MSK); 997 prot->lbrtcv = lbrt_chk_val; 998 prot->dw4 |= get_prot_chk_msk_v3_hw(scsi_cmnd); 999 break; 1000 case SCSI_PROT_WRITE_INSERT: 1001 prot->dw0 |= T10_INSRT_EN_MSK; 1002 prot->lbrtgv = lbrt_chk_val; 1003 break; 1004 default: 1005 WARN(1, "prot_op(0x%x) is not valid\n", prot_op); 1006 break; 1007 } 1008 1009 switch (interval) { 1010 case 512: 1011 break; 1012 case 4096: 1013 prot->dw0 |= (0x1 << USR_DATA_BLOCK_SZ_OFF); 1014 break; 1015 case 520: 1016 prot->dw0 |= (0x2 << USR_DATA_BLOCK_SZ_OFF); 1017 break; 1018 default: 1019 WARN(1, "protection interval (0x%x) invalid\n", 1020 interval); 1021 break; 1022 } 1023 1024 prot->dw0 |= INCR_LBRT_MSK; 1025 } 1026 1027 static void prep_ssp_v3_hw(struct hisi_hba *hisi_hba, 1028 struct hisi_sas_slot *slot) 1029 { 1030 struct sas_task *task = slot->task; 1031 struct hisi_sas_cmd_hdr *hdr = slot->cmd_hdr; 1032 struct domain_device *device = task->dev; 1033 struct hisi_sas_device *sas_dev = device->lldd_dev; 1034 struct hisi_sas_port *port = slot->port; 1035 struct sas_ssp_task *ssp_task = &task->ssp_task; 1036 struct scsi_cmnd *scsi_cmnd = ssp_task->cmd; 1037 struct hisi_sas_tmf_task *tmf = slot->tmf; 1038 unsigned char prot_op = scsi_get_prot_op(scsi_cmnd); 1039 int has_data = 0, priority = !!tmf; 1040 u8 *buf_cmd; 1041 u32 dw1 = 0, dw2 = 0, len = 0; 1042 1043 hdr->dw0 = cpu_to_le32((1 << CMD_HDR_RESP_REPORT_OFF) | 1044 (2 << CMD_HDR_TLR_CTRL_OFF) | 1045 (port->id << CMD_HDR_PORT_OFF) | 1046 (priority << CMD_HDR_PRIORITY_OFF) | 1047 (1 << CMD_HDR_CMD_OFF)); /* ssp */ 1048 1049 dw1 = 1 << CMD_HDR_VDTL_OFF; 1050 if (tmf) { 1051 dw1 |= 2 << CMD_HDR_FRAME_TYPE_OFF; 1052 dw1 |= DIR_NO_DATA << CMD_HDR_DIR_OFF; 1053 } else { 1054 dw1 |= 1 << CMD_HDR_FRAME_TYPE_OFF; 1055 switch (scsi_cmnd->sc_data_direction) { 1056 case DMA_TO_DEVICE: 1057 has_data = 1; 1058 dw1 |= DIR_TO_DEVICE << CMD_HDR_DIR_OFF; 1059 break; 1060 case DMA_FROM_DEVICE: 1061 has_data = 1; 1062 dw1 |= DIR_TO_INI << CMD_HDR_DIR_OFF; 1063 break; 1064 default: 1065 dw1 &= ~CMD_HDR_DIR_MSK; 1066 } 1067 } 1068 1069 /* map itct entry */ 1070 dw1 |= sas_dev->device_id << CMD_HDR_DEV_ID_OFF; 1071 1072 dw2 = (((sizeof(struct ssp_command_iu) + sizeof(struct ssp_frame_hdr) 1073 + 3) / 4) << CMD_HDR_CFL_OFF) | 1074 ((HISI_SAS_MAX_SSP_RESP_SZ / 4) << CMD_HDR_MRFL_OFF) | 1075 (2 << CMD_HDR_SG_MOD_OFF); 1076 hdr->dw2 = cpu_to_le32(dw2); 1077 hdr->transfer_tags = cpu_to_le32(slot->idx); 1078 1079 if (has_data) 1080 prep_prd_sge_v3_hw(hisi_hba, slot, hdr, task->scatter, 1081 slot->n_elem); 1082 1083 hdr->cmd_table_addr = cpu_to_le64(hisi_sas_cmd_hdr_addr_dma(slot)); 1084 hdr->sts_buffer_addr = cpu_to_le64(hisi_sas_status_buf_addr_dma(slot)); 1085 1086 buf_cmd = hisi_sas_cmd_hdr_addr_mem(slot) + 1087 sizeof(struct ssp_frame_hdr); 1088 1089 memcpy(buf_cmd, &task->ssp_task.LUN, 8); 1090 if (!tmf) { 1091 buf_cmd[9] = ssp_task->task_attr | (ssp_task->task_prio << 3); 1092 memcpy(buf_cmd + 12, scsi_cmnd->cmnd, scsi_cmnd->cmd_len); 1093 } else { 1094 buf_cmd[10] = tmf->tmf; 1095 switch (tmf->tmf) { 1096 case TMF_ABORT_TASK: 1097 case TMF_QUERY_TASK: 1098 buf_cmd[12] = 1099 (tmf->tag_of_task_to_be_managed >> 8) & 0xff; 1100 buf_cmd[13] = 1101 tmf->tag_of_task_to_be_managed & 0xff; 1102 break; 1103 default: 1104 break; 1105 } 1106 } 1107 1108 if (has_data && (prot_op != SCSI_PROT_NORMAL)) { 1109 struct hisi_sas_protect_iu_v3_hw prot; 1110 u8 *buf_cmd_prot; 1111 1112 hdr->dw7 |= cpu_to_le32(1 << CMD_HDR_ADDR_MODE_SEL_OFF); 1113 dw1 |= CMD_HDR_PIR_MSK; 1114 buf_cmd_prot = hisi_sas_cmd_hdr_addr_mem(slot) + 1115 sizeof(struct ssp_frame_hdr) + 1116 sizeof(struct ssp_command_iu); 1117 1118 memset(&prot, 0, sizeof(struct hisi_sas_protect_iu_v3_hw)); 1119 fill_prot_v3_hw(scsi_cmnd, &prot); 1120 memcpy(buf_cmd_prot, &prot, 1121 sizeof(struct hisi_sas_protect_iu_v3_hw)); 1122 1123 /* 1124 * For READ, we need length of info read to memory, while for 1125 * WRITE we need length of data written to the disk. 1126 */ 1127 if (prot_op == SCSI_PROT_WRITE_INSERT) { 1128 unsigned int interval = scsi_prot_interval(scsi_cmnd); 1129 unsigned int ilog2_interval = ilog2(interval); 1130 1131 len = (task->total_xfer_len >> ilog2_interval) * 8; 1132 } 1133 1134 } 1135 1136 hdr->dw1 = cpu_to_le32(dw1); 1137 1138 hdr->data_transfer_len = cpu_to_le32(task->total_xfer_len + len); 1139 } 1140 1141 static void prep_smp_v3_hw(struct hisi_hba *hisi_hba, 1142 struct hisi_sas_slot *slot) 1143 { 1144 struct sas_task *task = slot->task; 1145 struct hisi_sas_cmd_hdr *hdr = slot->cmd_hdr; 1146 struct domain_device *device = task->dev; 1147 struct hisi_sas_port *port = slot->port; 1148 struct scatterlist *sg_req; 1149 struct hisi_sas_device *sas_dev = device->lldd_dev; 1150 dma_addr_t req_dma_addr; 1151 unsigned int req_len; 1152 1153 /* req */ 1154 sg_req = &task->smp_task.smp_req; 1155 req_len = sg_dma_len(sg_req); 1156 req_dma_addr = sg_dma_address(sg_req); 1157 1158 /* create header */ 1159 /* dw0 */ 1160 hdr->dw0 = cpu_to_le32((port->id << CMD_HDR_PORT_OFF) | 1161 (1 << CMD_HDR_PRIORITY_OFF) | /* high pri */ 1162 (2 << CMD_HDR_CMD_OFF)); /* smp */ 1163 1164 /* map itct entry */ 1165 hdr->dw1 = cpu_to_le32((sas_dev->device_id << CMD_HDR_DEV_ID_OFF) | 1166 (1 << CMD_HDR_FRAME_TYPE_OFF) | 1167 (DIR_NO_DATA << CMD_HDR_DIR_OFF)); 1168 1169 /* dw2 */ 1170 hdr->dw2 = cpu_to_le32((((req_len - 4) / 4) << CMD_HDR_CFL_OFF) | 1171 (HISI_SAS_MAX_SMP_RESP_SZ / 4 << 1172 CMD_HDR_MRFL_OFF)); 1173 1174 hdr->transfer_tags = cpu_to_le32(slot->idx << CMD_HDR_IPTT_OFF); 1175 1176 hdr->cmd_table_addr = cpu_to_le64(req_dma_addr); 1177 hdr->sts_buffer_addr = cpu_to_le64(hisi_sas_status_buf_addr_dma(slot)); 1178 1179 } 1180 1181 static void prep_ata_v3_hw(struct hisi_hba *hisi_hba, 1182 struct hisi_sas_slot *slot) 1183 { 1184 struct sas_task *task = slot->task; 1185 struct domain_device *device = task->dev; 1186 struct domain_device *parent_dev = device->parent; 1187 struct hisi_sas_device *sas_dev = device->lldd_dev; 1188 struct hisi_sas_cmd_hdr *hdr = slot->cmd_hdr; 1189 struct asd_sas_port *sas_port = device->port; 1190 struct hisi_sas_port *port = to_hisi_sas_port(sas_port); 1191 u8 *buf_cmd; 1192 int has_data = 0, hdr_tag = 0; 1193 u32 dw1 = 0, dw2 = 0; 1194 1195 hdr->dw0 = cpu_to_le32(port->id << CMD_HDR_PORT_OFF); 1196 if (parent_dev && DEV_IS_EXPANDER(parent_dev->dev_type)) 1197 hdr->dw0 |= cpu_to_le32(3 << CMD_HDR_CMD_OFF); 1198 else 1199 hdr->dw0 |= cpu_to_le32(4 << CMD_HDR_CMD_OFF); 1200 1201 switch (task->data_dir) { 1202 case DMA_TO_DEVICE: 1203 has_data = 1; 1204 dw1 |= DIR_TO_DEVICE << CMD_HDR_DIR_OFF; 1205 break; 1206 case DMA_FROM_DEVICE: 1207 has_data = 1; 1208 dw1 |= DIR_TO_INI << CMD_HDR_DIR_OFF; 1209 break; 1210 default: 1211 dw1 &= ~CMD_HDR_DIR_MSK; 1212 } 1213 1214 if ((task->ata_task.fis.command == ATA_CMD_DEV_RESET) && 1215 (task->ata_task.fis.control & ATA_SRST)) 1216 dw1 |= 1 << CMD_HDR_RESET_OFF; 1217 1218 dw1 |= (hisi_sas_get_ata_protocol( 1219 &task->ata_task.fis, task->data_dir)) 1220 << CMD_HDR_FRAME_TYPE_OFF; 1221 dw1 |= sas_dev->device_id << CMD_HDR_DEV_ID_OFF; 1222 1223 if (FIS_CMD_IS_UNCONSTRAINED(task->ata_task.fis)) 1224 dw1 |= 1 << CMD_HDR_UNCON_CMD_OFF; 1225 1226 hdr->dw1 = cpu_to_le32(dw1); 1227 1228 /* dw2 */ 1229 if (task->ata_task.use_ncq && hisi_sas_get_ncq_tag(task, &hdr_tag)) { 1230 task->ata_task.fis.sector_count |= (u8) (hdr_tag << 3); 1231 dw2 |= hdr_tag << CMD_HDR_NCQ_TAG_OFF; 1232 } 1233 1234 dw2 |= (HISI_SAS_MAX_STP_RESP_SZ / 4) << CMD_HDR_CFL_OFF | 1235 2 << CMD_HDR_SG_MOD_OFF; 1236 hdr->dw2 = cpu_to_le32(dw2); 1237 1238 /* dw3 */ 1239 hdr->transfer_tags = cpu_to_le32(slot->idx); 1240 1241 if (has_data) 1242 prep_prd_sge_v3_hw(hisi_hba, slot, hdr, task->scatter, 1243 slot->n_elem); 1244 1245 hdr->data_transfer_len = cpu_to_le32(task->total_xfer_len); 1246 hdr->cmd_table_addr = cpu_to_le64(hisi_sas_cmd_hdr_addr_dma(slot)); 1247 hdr->sts_buffer_addr = cpu_to_le64(hisi_sas_status_buf_addr_dma(slot)); 1248 1249 buf_cmd = hisi_sas_cmd_hdr_addr_mem(slot); 1250 1251 if (likely(!task->ata_task.device_control_reg_update)) 1252 task->ata_task.fis.flags |= 0x80; /* C=1: update ATA cmd reg */ 1253 /* fill in command FIS */ 1254 memcpy(buf_cmd, &task->ata_task.fis, sizeof(struct host_to_dev_fis)); 1255 } 1256 1257 static void prep_abort_v3_hw(struct hisi_hba *hisi_hba, 1258 struct hisi_sas_slot *slot, 1259 int device_id, int abort_flag, int tag_to_abort) 1260 { 1261 struct sas_task *task = slot->task; 1262 struct domain_device *dev = task->dev; 1263 struct hisi_sas_cmd_hdr *hdr = slot->cmd_hdr; 1264 struct hisi_sas_port *port = slot->port; 1265 1266 /* dw0 */ 1267 hdr->dw0 = cpu_to_le32((5 << CMD_HDR_CMD_OFF) | /*abort*/ 1268 (port->id << CMD_HDR_PORT_OFF) | 1269 (dev_is_sata(dev) 1270 << CMD_HDR_ABORT_DEVICE_TYPE_OFF) | 1271 (abort_flag 1272 << CMD_HDR_ABORT_FLAG_OFF)); 1273 1274 /* dw1 */ 1275 hdr->dw1 = cpu_to_le32(device_id 1276 << CMD_HDR_DEV_ID_OFF); 1277 1278 /* dw7 */ 1279 hdr->dw7 = cpu_to_le32(tag_to_abort << CMD_HDR_ABORT_IPTT_OFF); 1280 hdr->transfer_tags = cpu_to_le32(slot->idx); 1281 1282 } 1283 1284 static irqreturn_t phy_up_v3_hw(int phy_no, struct hisi_hba *hisi_hba) 1285 { 1286 int i, res; 1287 u32 context, port_id, link_rate; 1288 struct hisi_sas_phy *phy = &hisi_hba->phy[phy_no]; 1289 struct asd_sas_phy *sas_phy = &phy->sas_phy; 1290 struct device *dev = hisi_hba->dev; 1291 unsigned long flags; 1292 1293 hisi_sas_phy_write32(hisi_hba, phy_no, PHYCTRL_PHY_ENA_MSK, 1); 1294 1295 port_id = hisi_sas_read32(hisi_hba, PHY_PORT_NUM_MA); 1296 port_id = (port_id >> (4 * phy_no)) & 0xf; 1297 link_rate = hisi_sas_read32(hisi_hba, PHY_CONN_RATE); 1298 link_rate = (link_rate >> (phy_no * 4)) & 0xf; 1299 1300 if (port_id == 0xf) { 1301 dev_err(dev, "phyup: phy%d invalid portid\n", phy_no); 1302 res = IRQ_NONE; 1303 goto end; 1304 } 1305 sas_phy->linkrate = link_rate; 1306 phy->phy_type &= ~(PORT_TYPE_SAS | PORT_TYPE_SATA); 1307 1308 /* Check for SATA dev */ 1309 context = hisi_sas_read32(hisi_hba, PHY_CONTEXT); 1310 if (context & (1 << phy_no)) { 1311 struct hisi_sas_initial_fis *initial_fis; 1312 struct dev_to_host_fis *fis; 1313 u8 attached_sas_addr[SAS_ADDR_SIZE] = {0}; 1314 1315 dev_info(dev, "phyup: phy%d link_rate=%d(sata)\n", phy_no, link_rate); 1316 initial_fis = &hisi_hba->initial_fis[phy_no]; 1317 fis = &initial_fis->fis; 1318 1319 /* check ERR bit of Status Register */ 1320 if (fis->status & ATA_ERR) { 1321 dev_warn(dev, "sata int: phy%d FIS status: 0x%x\n", 1322 phy_no, fis->status); 1323 hisi_sas_notify_phy_event(phy, HISI_PHYE_LINK_RESET); 1324 res = IRQ_NONE; 1325 goto end; 1326 } 1327 1328 sas_phy->oob_mode = SATA_OOB_MODE; 1329 attached_sas_addr[0] = 0x50; 1330 attached_sas_addr[7] = phy_no; 1331 memcpy(sas_phy->attached_sas_addr, 1332 attached_sas_addr, 1333 SAS_ADDR_SIZE); 1334 memcpy(sas_phy->frame_rcvd, fis, 1335 sizeof(struct dev_to_host_fis)); 1336 phy->phy_type |= PORT_TYPE_SATA; 1337 phy->identify.device_type = SAS_SATA_DEV; 1338 phy->frame_rcvd_size = sizeof(struct dev_to_host_fis); 1339 phy->identify.target_port_protocols = SAS_PROTOCOL_SATA; 1340 } else { 1341 u32 *frame_rcvd = (u32 *)sas_phy->frame_rcvd; 1342 struct sas_identify_frame *id = 1343 (struct sas_identify_frame *)frame_rcvd; 1344 1345 dev_info(dev, "phyup: phy%d link_rate=%d\n", phy_no, link_rate); 1346 for (i = 0; i < 6; i++) { 1347 u32 idaf = hisi_sas_phy_read32(hisi_hba, phy_no, 1348 RX_IDAF_DWORD0 + (i * 4)); 1349 frame_rcvd[i] = __swab32(idaf); 1350 } 1351 sas_phy->oob_mode = SAS_OOB_MODE; 1352 memcpy(sas_phy->attached_sas_addr, 1353 &id->sas_addr, 1354 SAS_ADDR_SIZE); 1355 phy->phy_type |= PORT_TYPE_SAS; 1356 phy->identify.device_type = id->dev_type; 1357 phy->frame_rcvd_size = sizeof(struct sas_identify_frame); 1358 if (phy->identify.device_type == SAS_END_DEVICE) 1359 phy->identify.target_port_protocols = 1360 SAS_PROTOCOL_SSP; 1361 else if (phy->identify.device_type != SAS_PHY_UNUSED) 1362 phy->identify.target_port_protocols = 1363 SAS_PROTOCOL_SMP; 1364 } 1365 1366 phy->port_id = port_id; 1367 phy->phy_attached = 1; 1368 hisi_sas_notify_phy_event(phy, HISI_PHYE_PHY_UP); 1369 res = IRQ_HANDLED; 1370 spin_lock_irqsave(&phy->lock, flags); 1371 if (phy->reset_completion) { 1372 phy->in_reset = 0; 1373 complete(phy->reset_completion); 1374 } 1375 spin_unlock_irqrestore(&phy->lock, flags); 1376 end: 1377 hisi_sas_phy_write32(hisi_hba, phy_no, CHL_INT0, 1378 CHL_INT0_SL_PHY_ENABLE_MSK); 1379 hisi_sas_phy_write32(hisi_hba, phy_no, PHYCTRL_PHY_ENA_MSK, 0); 1380 1381 return res; 1382 } 1383 1384 static irqreturn_t phy_down_v3_hw(int phy_no, struct hisi_hba *hisi_hba) 1385 { 1386 u32 phy_state, sl_ctrl, txid_auto; 1387 struct device *dev = hisi_hba->dev; 1388 1389 hisi_sas_phy_write32(hisi_hba, phy_no, PHYCTRL_NOT_RDY_MSK, 1); 1390 1391 phy_state = hisi_sas_read32(hisi_hba, PHY_STATE); 1392 dev_info(dev, "phydown: phy%d phy_state=0x%x\n", phy_no, phy_state); 1393 hisi_sas_phy_down(hisi_hba, phy_no, (phy_state & 1 << phy_no) ? 1 : 0); 1394 1395 sl_ctrl = hisi_sas_phy_read32(hisi_hba, phy_no, SL_CONTROL); 1396 hisi_sas_phy_write32(hisi_hba, phy_no, SL_CONTROL, 1397 sl_ctrl&(~SL_CTA_MSK)); 1398 1399 txid_auto = hisi_sas_phy_read32(hisi_hba, phy_no, TXID_AUTO); 1400 hisi_sas_phy_write32(hisi_hba, phy_no, TXID_AUTO, 1401 txid_auto | CT3_MSK); 1402 1403 hisi_sas_phy_write32(hisi_hba, phy_no, CHL_INT0, CHL_INT0_NOT_RDY_MSK); 1404 hisi_sas_phy_write32(hisi_hba, phy_no, PHYCTRL_NOT_RDY_MSK, 0); 1405 1406 return IRQ_HANDLED; 1407 } 1408 1409 static irqreturn_t phy_bcast_v3_hw(int phy_no, struct hisi_hba *hisi_hba) 1410 { 1411 struct hisi_sas_phy *phy = &hisi_hba->phy[phy_no]; 1412 struct asd_sas_phy *sas_phy = &phy->sas_phy; 1413 struct sas_ha_struct *sas_ha = &hisi_hba->sha; 1414 u32 bcast_status; 1415 1416 hisi_sas_phy_write32(hisi_hba, phy_no, SL_RX_BCAST_CHK_MSK, 1); 1417 bcast_status = hisi_sas_phy_read32(hisi_hba, phy_no, RX_PRIMS_STATUS); 1418 if ((bcast_status & RX_BCAST_CHG_MSK) && 1419 !test_bit(HISI_SAS_RESET_BIT, &hisi_hba->flags)) 1420 sas_ha->notify_port_event(sas_phy, PORTE_BROADCAST_RCVD); 1421 hisi_sas_phy_write32(hisi_hba, phy_no, CHL_INT0, 1422 CHL_INT0_SL_RX_BCST_ACK_MSK); 1423 hisi_sas_phy_write32(hisi_hba, phy_no, SL_RX_BCAST_CHK_MSK, 0); 1424 1425 return IRQ_HANDLED; 1426 } 1427 1428 static irqreturn_t int_phy_up_down_bcast_v3_hw(int irq_no, void *p) 1429 { 1430 struct hisi_hba *hisi_hba = p; 1431 u32 irq_msk; 1432 int phy_no = 0; 1433 irqreturn_t res = IRQ_NONE; 1434 1435 irq_msk = hisi_sas_read32(hisi_hba, CHNL_INT_STATUS) 1436 & 0x11111111; 1437 while (irq_msk) { 1438 if (irq_msk & 1) { 1439 u32 irq_value = hisi_sas_phy_read32(hisi_hba, phy_no, 1440 CHL_INT0); 1441 u32 phy_state = hisi_sas_read32(hisi_hba, PHY_STATE); 1442 int rdy = phy_state & (1 << phy_no); 1443 1444 if (rdy) { 1445 if (irq_value & CHL_INT0_SL_PHY_ENABLE_MSK) 1446 /* phy up */ 1447 if (phy_up_v3_hw(phy_no, hisi_hba) 1448 == IRQ_HANDLED) 1449 res = IRQ_HANDLED; 1450 if (irq_value & CHL_INT0_SL_RX_BCST_ACK_MSK) 1451 /* phy bcast */ 1452 if (phy_bcast_v3_hw(phy_no, hisi_hba) 1453 == IRQ_HANDLED) 1454 res = IRQ_HANDLED; 1455 } else { 1456 if (irq_value & CHL_INT0_NOT_RDY_MSK) 1457 /* phy down */ 1458 if (phy_down_v3_hw(phy_no, hisi_hba) 1459 == IRQ_HANDLED) 1460 res = IRQ_HANDLED; 1461 } 1462 } 1463 irq_msk >>= 4; 1464 phy_no++; 1465 } 1466 1467 return res; 1468 } 1469 1470 static const struct hisi_sas_hw_error port_axi_error[] = { 1471 { 1472 .irq_msk = BIT(CHL_INT1_DMAC_TX_AXI_WR_ERR_OFF), 1473 .msg = "dma_tx_axi_wr_err", 1474 }, 1475 { 1476 .irq_msk = BIT(CHL_INT1_DMAC_TX_AXI_RD_ERR_OFF), 1477 .msg = "dma_tx_axi_rd_err", 1478 }, 1479 { 1480 .irq_msk = BIT(CHL_INT1_DMAC_RX_AXI_WR_ERR_OFF), 1481 .msg = "dma_rx_axi_wr_err", 1482 }, 1483 { 1484 .irq_msk = BIT(CHL_INT1_DMAC_RX_AXI_RD_ERR_OFF), 1485 .msg = "dma_rx_axi_rd_err", 1486 }, 1487 }; 1488 1489 static void handle_chl_int1_v3_hw(struct hisi_hba *hisi_hba, int phy_no) 1490 { 1491 u32 irq_value = hisi_sas_phy_read32(hisi_hba, phy_no, CHL_INT1); 1492 u32 irq_msk = hisi_sas_phy_read32(hisi_hba, phy_no, CHL_INT1_MSK); 1493 struct device *dev = hisi_hba->dev; 1494 int i; 1495 1496 irq_value &= ~irq_msk; 1497 if (!irq_value) 1498 return; 1499 1500 for (i = 0; i < ARRAY_SIZE(port_axi_error); i++) { 1501 const struct hisi_sas_hw_error *error = &port_axi_error[i]; 1502 1503 if (!(irq_value & error->irq_msk)) 1504 continue; 1505 1506 dev_err(dev, "%s error (phy%d 0x%x) found!\n", 1507 error->msg, phy_no, irq_value); 1508 queue_work(hisi_hba->wq, &hisi_hba->rst_work); 1509 } 1510 1511 hisi_sas_phy_write32(hisi_hba, phy_no, CHL_INT1, irq_value); 1512 } 1513 1514 static void handle_chl_int2_v3_hw(struct hisi_hba *hisi_hba, int phy_no) 1515 { 1516 u32 irq_msk = hisi_sas_phy_read32(hisi_hba, phy_no, CHL_INT2_MSK); 1517 u32 irq_value = hisi_sas_phy_read32(hisi_hba, phy_no, CHL_INT2); 1518 struct hisi_sas_phy *phy = &hisi_hba->phy[phy_no]; 1519 struct pci_dev *pci_dev = hisi_hba->pci_dev; 1520 struct device *dev = hisi_hba->dev; 1521 1522 irq_value &= ~irq_msk; 1523 if (!irq_value) 1524 return; 1525 1526 if (irq_value & BIT(CHL_INT2_SL_IDAF_TOUT_CONF_OFF)) { 1527 dev_warn(dev, "phy%d identify timeout\n", phy_no); 1528 hisi_sas_notify_phy_event(phy, HISI_PHYE_LINK_RESET); 1529 } 1530 1531 if (irq_value & BIT(CHL_INT2_STP_LINK_TIMEOUT_OFF)) { 1532 u32 reg_value = hisi_sas_phy_read32(hisi_hba, phy_no, 1533 STP_LINK_TIMEOUT_STATE); 1534 1535 dev_warn(dev, "phy%d stp link timeout (0x%x)\n", 1536 phy_no, reg_value); 1537 if (reg_value & BIT(4)) 1538 hisi_sas_notify_phy_event(phy, HISI_PHYE_LINK_RESET); 1539 } 1540 1541 if ((irq_value & BIT(CHL_INT2_RX_INVLD_DW_OFF)) && 1542 (pci_dev->revision == 0x20)) { 1543 u32 reg_value; 1544 int rc; 1545 1546 rc = hisi_sas_read32_poll_timeout_atomic( 1547 HILINK_ERR_DFX, reg_value, 1548 !((reg_value >> 8) & BIT(phy_no)), 1549 1000, 10000); 1550 if (rc) 1551 hisi_sas_notify_phy_event(phy, HISI_PHYE_LINK_RESET); 1552 } 1553 1554 hisi_sas_phy_write32(hisi_hba, phy_no, CHL_INT2, irq_value); 1555 } 1556 1557 static irqreturn_t int_chnl_int_v3_hw(int irq_no, void *p) 1558 { 1559 struct hisi_hba *hisi_hba = p; 1560 u32 irq_msk; 1561 int phy_no = 0; 1562 1563 irq_msk = hisi_sas_read32(hisi_hba, CHNL_INT_STATUS) 1564 & 0xeeeeeeee; 1565 1566 while (irq_msk) { 1567 u32 irq_value0 = hisi_sas_phy_read32(hisi_hba, phy_no, 1568 CHL_INT0); 1569 1570 if (irq_msk & (4 << (phy_no * 4))) 1571 handle_chl_int1_v3_hw(hisi_hba, phy_no); 1572 1573 if (irq_msk & (8 << (phy_no * 4))) 1574 handle_chl_int2_v3_hw(hisi_hba, phy_no); 1575 1576 if (irq_msk & (2 << (phy_no * 4)) && irq_value0) { 1577 hisi_sas_phy_write32(hisi_hba, phy_no, 1578 CHL_INT0, irq_value0 1579 & (~CHL_INT0_SL_RX_BCST_ACK_MSK) 1580 & (~CHL_INT0_SL_PHY_ENABLE_MSK) 1581 & (~CHL_INT0_NOT_RDY_MSK)); 1582 } 1583 irq_msk &= ~(0xe << (phy_no * 4)); 1584 phy_no++; 1585 } 1586 1587 return IRQ_HANDLED; 1588 } 1589 1590 static const struct hisi_sas_hw_error axi_error[] = { 1591 { .msk = BIT(0), .msg = "IOST_AXI_W_ERR" }, 1592 { .msk = BIT(1), .msg = "IOST_AXI_R_ERR" }, 1593 { .msk = BIT(2), .msg = "ITCT_AXI_W_ERR" }, 1594 { .msk = BIT(3), .msg = "ITCT_AXI_R_ERR" }, 1595 { .msk = BIT(4), .msg = "SATA_AXI_W_ERR" }, 1596 { .msk = BIT(5), .msg = "SATA_AXI_R_ERR" }, 1597 { .msk = BIT(6), .msg = "DQE_AXI_R_ERR" }, 1598 { .msk = BIT(7), .msg = "CQE_AXI_W_ERR" }, 1599 {}, 1600 }; 1601 1602 static const struct hisi_sas_hw_error fifo_error[] = { 1603 { .msk = BIT(8), .msg = "CQE_WINFO_FIFO" }, 1604 { .msk = BIT(9), .msg = "CQE_MSG_FIFIO" }, 1605 { .msk = BIT(10), .msg = "GETDQE_FIFO" }, 1606 { .msk = BIT(11), .msg = "CMDP_FIFO" }, 1607 { .msk = BIT(12), .msg = "AWTCTRL_FIFO" }, 1608 {}, 1609 }; 1610 1611 static const struct hisi_sas_hw_error fatal_axi_error[] = { 1612 { 1613 .irq_msk = BIT(ENT_INT_SRC3_WP_DEPTH_OFF), 1614 .msg = "write pointer and depth", 1615 }, 1616 { 1617 .irq_msk = BIT(ENT_INT_SRC3_IPTT_SLOT_NOMATCH_OFF), 1618 .msg = "iptt no match slot", 1619 }, 1620 { 1621 .irq_msk = BIT(ENT_INT_SRC3_RP_DEPTH_OFF), 1622 .msg = "read pointer and depth", 1623 }, 1624 { 1625 .irq_msk = BIT(ENT_INT_SRC3_AXI_OFF), 1626 .reg = HGC_AXI_FIFO_ERR_INFO, 1627 .sub = axi_error, 1628 }, 1629 { 1630 .irq_msk = BIT(ENT_INT_SRC3_FIFO_OFF), 1631 .reg = HGC_AXI_FIFO_ERR_INFO, 1632 .sub = fifo_error, 1633 }, 1634 { 1635 .irq_msk = BIT(ENT_INT_SRC3_LM_OFF), 1636 .msg = "LM add/fetch list", 1637 }, 1638 { 1639 .irq_msk = BIT(ENT_INT_SRC3_ABT_OFF), 1640 .msg = "SAS_HGC_ABT fetch LM list", 1641 }, 1642 }; 1643 1644 static irqreturn_t fatal_axi_int_v3_hw(int irq_no, void *p) 1645 { 1646 u32 irq_value, irq_msk; 1647 struct hisi_hba *hisi_hba = p; 1648 struct device *dev = hisi_hba->dev; 1649 struct pci_dev *pdev = hisi_hba->pci_dev; 1650 int i; 1651 1652 irq_msk = hisi_sas_read32(hisi_hba, ENT_INT_SRC_MSK3); 1653 hisi_sas_write32(hisi_hba, ENT_INT_SRC_MSK3, irq_msk | 0x1df00); 1654 1655 irq_value = hisi_sas_read32(hisi_hba, ENT_INT_SRC3); 1656 irq_value &= ~irq_msk; 1657 1658 for (i = 0; i < ARRAY_SIZE(fatal_axi_error); i++) { 1659 const struct hisi_sas_hw_error *error = &fatal_axi_error[i]; 1660 1661 if (!(irq_value & error->irq_msk)) 1662 continue; 1663 1664 if (error->sub) { 1665 const struct hisi_sas_hw_error *sub = error->sub; 1666 u32 err_value = hisi_sas_read32(hisi_hba, error->reg); 1667 1668 for (; sub->msk || sub->msg; sub++) { 1669 if (!(err_value & sub->msk)) 1670 continue; 1671 1672 dev_err(dev, "%s error (0x%x) found!\n", 1673 sub->msg, irq_value); 1674 queue_work(hisi_hba->wq, &hisi_hba->rst_work); 1675 } 1676 } else { 1677 dev_err(dev, "%s error (0x%x) found!\n", 1678 error->msg, irq_value); 1679 queue_work(hisi_hba->wq, &hisi_hba->rst_work); 1680 } 1681 1682 if (pdev->revision < 0x21) { 1683 u32 reg_val; 1684 1685 reg_val = hisi_sas_read32(hisi_hba, 1686 AXI_MASTER_CFG_BASE + 1687 AM_CTRL_GLOBAL); 1688 reg_val |= AM_CTRL_SHUTDOWN_REQ_MSK; 1689 hisi_sas_write32(hisi_hba, AXI_MASTER_CFG_BASE + 1690 AM_CTRL_GLOBAL, reg_val); 1691 } 1692 } 1693 1694 if (irq_value & BIT(ENT_INT_SRC3_ITC_INT_OFF)) { 1695 u32 reg_val = hisi_sas_read32(hisi_hba, ITCT_CLR); 1696 u32 dev_id = reg_val & ITCT_DEV_MSK; 1697 struct hisi_sas_device *sas_dev = 1698 &hisi_hba->devices[dev_id]; 1699 1700 hisi_sas_write32(hisi_hba, ITCT_CLR, 0); 1701 dev_dbg(dev, "clear ITCT ok\n"); 1702 complete(sas_dev->completion); 1703 } 1704 1705 hisi_sas_write32(hisi_hba, ENT_INT_SRC3, irq_value & 0x1df00); 1706 hisi_sas_write32(hisi_hba, ENT_INT_SRC_MSK3, irq_msk); 1707 1708 return IRQ_HANDLED; 1709 } 1710 1711 static void 1712 slot_err_v3_hw(struct hisi_hba *hisi_hba, struct sas_task *task, 1713 struct hisi_sas_slot *slot) 1714 { 1715 struct task_status_struct *ts = &task->task_status; 1716 struct hisi_sas_complete_v3_hdr *complete_queue = 1717 hisi_hba->complete_hdr[slot->cmplt_queue]; 1718 struct hisi_sas_complete_v3_hdr *complete_hdr = 1719 &complete_queue[slot->cmplt_queue_slot]; 1720 struct hisi_sas_err_record_v3 *record = 1721 hisi_sas_status_buf_addr_mem(slot); 1722 u32 dma_rx_err_type = le32_to_cpu(record->dma_rx_err_type); 1723 u32 trans_tx_fail_type = le32_to_cpu(record->trans_tx_fail_type); 1724 u32 dw3 = le32_to_cpu(complete_hdr->dw3); 1725 1726 switch (task->task_proto) { 1727 case SAS_PROTOCOL_SSP: 1728 if (dma_rx_err_type & RX_DATA_LEN_UNDERFLOW_MSK) { 1729 ts->residual = trans_tx_fail_type; 1730 ts->stat = SAS_DATA_UNDERRUN; 1731 } else if (dw3 & CMPLT_HDR_IO_IN_TARGET_MSK) { 1732 ts->stat = SAS_QUEUE_FULL; 1733 slot->abort = 1; 1734 } else { 1735 ts->stat = SAS_OPEN_REJECT; 1736 ts->open_rej_reason = SAS_OREJ_RSVD_RETRY; 1737 } 1738 break; 1739 case SAS_PROTOCOL_SATA: 1740 case SAS_PROTOCOL_STP: 1741 case SAS_PROTOCOL_SATA | SAS_PROTOCOL_STP: 1742 if (dma_rx_err_type & RX_DATA_LEN_UNDERFLOW_MSK) { 1743 ts->residual = trans_tx_fail_type; 1744 ts->stat = SAS_DATA_UNDERRUN; 1745 } else if (dw3 & CMPLT_HDR_IO_IN_TARGET_MSK) { 1746 ts->stat = SAS_PHY_DOWN; 1747 slot->abort = 1; 1748 } else { 1749 ts->stat = SAS_OPEN_REJECT; 1750 ts->open_rej_reason = SAS_OREJ_RSVD_RETRY; 1751 } 1752 hisi_sas_sata_done(task, slot); 1753 break; 1754 case SAS_PROTOCOL_SMP: 1755 ts->stat = SAM_STAT_CHECK_CONDITION; 1756 break; 1757 default: 1758 break; 1759 } 1760 } 1761 1762 static int 1763 slot_complete_v3_hw(struct hisi_hba *hisi_hba, struct hisi_sas_slot *slot) 1764 { 1765 struct sas_task *task = slot->task; 1766 struct hisi_sas_device *sas_dev; 1767 struct device *dev = hisi_hba->dev; 1768 struct task_status_struct *ts; 1769 struct domain_device *device; 1770 struct sas_ha_struct *ha; 1771 enum exec_status sts; 1772 struct hisi_sas_complete_v3_hdr *complete_queue = 1773 hisi_hba->complete_hdr[slot->cmplt_queue]; 1774 struct hisi_sas_complete_v3_hdr *complete_hdr = 1775 &complete_queue[slot->cmplt_queue_slot]; 1776 unsigned long flags; 1777 bool is_internal = slot->is_internal; 1778 u32 dw0, dw1, dw3; 1779 1780 if (unlikely(!task || !task->lldd_task || !task->dev)) 1781 return -EINVAL; 1782 1783 ts = &task->task_status; 1784 device = task->dev; 1785 ha = device->port->ha; 1786 sas_dev = device->lldd_dev; 1787 1788 spin_lock_irqsave(&task->task_state_lock, flags); 1789 task->task_state_flags &= 1790 ~(SAS_TASK_STATE_PENDING | SAS_TASK_AT_INITIATOR); 1791 spin_unlock_irqrestore(&task->task_state_lock, flags); 1792 1793 memset(ts, 0, sizeof(*ts)); 1794 ts->resp = SAS_TASK_COMPLETE; 1795 1796 if (unlikely(!sas_dev)) { 1797 dev_dbg(dev, "slot complete: port has not device\n"); 1798 ts->stat = SAS_PHY_DOWN; 1799 goto out; 1800 } 1801 1802 dw0 = le32_to_cpu(complete_hdr->dw0); 1803 dw1 = le32_to_cpu(complete_hdr->dw1); 1804 dw3 = le32_to_cpu(complete_hdr->dw3); 1805 1806 /* 1807 * Use SAS+TMF status codes 1808 */ 1809 switch ((dw0 & CMPLT_HDR_ABORT_STAT_MSK) >> CMPLT_HDR_ABORT_STAT_OFF) { 1810 case STAT_IO_ABORTED: 1811 /* this IO has been aborted by abort command */ 1812 ts->stat = SAS_ABORTED_TASK; 1813 goto out; 1814 case STAT_IO_COMPLETE: 1815 /* internal abort command complete */ 1816 ts->stat = TMF_RESP_FUNC_SUCC; 1817 goto out; 1818 case STAT_IO_NO_DEVICE: 1819 ts->stat = TMF_RESP_FUNC_COMPLETE; 1820 goto out; 1821 case STAT_IO_NOT_VALID: 1822 /* 1823 * abort single IO, the controller can't find the IO 1824 */ 1825 ts->stat = TMF_RESP_FUNC_FAILED; 1826 goto out; 1827 default: 1828 break; 1829 } 1830 1831 /* check for erroneous completion */ 1832 if ((dw0 & CMPLT_HDR_CMPLT_MSK) == 0x3) { 1833 u32 *error_info = hisi_sas_status_buf_addr_mem(slot); 1834 1835 slot_err_v3_hw(hisi_hba, task, slot); 1836 if (ts->stat != SAS_DATA_UNDERRUN) 1837 dev_info(dev, "erroneous completion iptt=%d task=%p dev id=%d " 1838 "CQ hdr: 0x%x 0x%x 0x%x 0x%x " 1839 "Error info: 0x%x 0x%x 0x%x 0x%x\n", 1840 slot->idx, task, sas_dev->device_id, 1841 dw0, dw1, complete_hdr->act, dw3, 1842 error_info[0], error_info[1], 1843 error_info[2], error_info[3]); 1844 if (unlikely(slot->abort)) 1845 return ts->stat; 1846 goto out; 1847 } 1848 1849 switch (task->task_proto) { 1850 case SAS_PROTOCOL_SSP: { 1851 struct ssp_response_iu *iu = 1852 hisi_sas_status_buf_addr_mem(slot) + 1853 sizeof(struct hisi_sas_err_record); 1854 1855 sas_ssp_task_response(dev, task, iu); 1856 break; 1857 } 1858 case SAS_PROTOCOL_SMP: { 1859 struct scatterlist *sg_resp = &task->smp_task.smp_resp; 1860 void *to; 1861 1862 ts->stat = SAM_STAT_GOOD; 1863 to = kmap_atomic(sg_page(sg_resp)); 1864 1865 dma_unmap_sg(dev, &task->smp_task.smp_resp, 1, 1866 DMA_FROM_DEVICE); 1867 dma_unmap_sg(dev, &task->smp_task.smp_req, 1, 1868 DMA_TO_DEVICE); 1869 memcpy(to + sg_resp->offset, 1870 hisi_sas_status_buf_addr_mem(slot) + 1871 sizeof(struct hisi_sas_err_record), 1872 sg_dma_len(sg_resp)); 1873 kunmap_atomic(to); 1874 break; 1875 } 1876 case SAS_PROTOCOL_SATA: 1877 case SAS_PROTOCOL_STP: 1878 case SAS_PROTOCOL_SATA | SAS_PROTOCOL_STP: 1879 ts->stat = SAM_STAT_GOOD; 1880 hisi_sas_sata_done(task, slot); 1881 break; 1882 default: 1883 ts->stat = SAM_STAT_CHECK_CONDITION; 1884 break; 1885 } 1886 1887 if (!slot->port->port_attached) { 1888 dev_warn(dev, "slot complete: port %d has removed\n", 1889 slot->port->sas_port.id); 1890 ts->stat = SAS_PHY_DOWN; 1891 } 1892 1893 out: 1894 sts = ts->stat; 1895 spin_lock_irqsave(&task->task_state_lock, flags); 1896 if (task->task_state_flags & SAS_TASK_STATE_ABORTED) { 1897 spin_unlock_irqrestore(&task->task_state_lock, flags); 1898 dev_info(dev, "slot complete: task(%p) aborted\n", task); 1899 return SAS_ABORTED_TASK; 1900 } 1901 task->task_state_flags |= SAS_TASK_STATE_DONE; 1902 spin_unlock_irqrestore(&task->task_state_lock, flags); 1903 hisi_sas_slot_task_free(hisi_hba, task, slot); 1904 1905 if (!is_internal && (task->task_proto != SAS_PROTOCOL_SMP)) { 1906 spin_lock_irqsave(&device->done_lock, flags); 1907 if (test_bit(SAS_HA_FROZEN, &ha->state)) { 1908 spin_unlock_irqrestore(&device->done_lock, flags); 1909 dev_info(dev, "slot complete: task(%p) ignored\n ", 1910 task); 1911 return sts; 1912 } 1913 spin_unlock_irqrestore(&device->done_lock, flags); 1914 } 1915 1916 if (task->task_done) 1917 task->task_done(task); 1918 1919 return sts; 1920 } 1921 1922 static void cq_tasklet_v3_hw(unsigned long val) 1923 { 1924 struct hisi_sas_cq *cq = (struct hisi_sas_cq *)val; 1925 struct hisi_hba *hisi_hba = cq->hisi_hba; 1926 struct hisi_sas_slot *slot; 1927 struct hisi_sas_complete_v3_hdr *complete_queue; 1928 u32 rd_point = cq->rd_point, wr_point; 1929 int queue = cq->id; 1930 1931 complete_queue = hisi_hba->complete_hdr[queue]; 1932 1933 wr_point = hisi_sas_read32(hisi_hba, COMPL_Q_0_WR_PTR + 1934 (0x14 * queue)); 1935 1936 while (rd_point != wr_point) { 1937 struct hisi_sas_complete_v3_hdr *complete_hdr; 1938 struct device *dev = hisi_hba->dev; 1939 u32 dw1; 1940 int iptt; 1941 1942 complete_hdr = &complete_queue[rd_point]; 1943 dw1 = le32_to_cpu(complete_hdr->dw1); 1944 1945 iptt = dw1 & CMPLT_HDR_IPTT_MSK; 1946 if (likely(iptt < HISI_SAS_COMMAND_ENTRIES_V3_HW)) { 1947 slot = &hisi_hba->slot_info[iptt]; 1948 slot->cmplt_queue_slot = rd_point; 1949 slot->cmplt_queue = queue; 1950 slot_complete_v3_hw(hisi_hba, slot); 1951 } else 1952 dev_err(dev, "IPTT %d is invalid, discard it.\n", iptt); 1953 1954 if (++rd_point >= HISI_SAS_QUEUE_SLOTS) 1955 rd_point = 0; 1956 } 1957 1958 /* update rd_point */ 1959 cq->rd_point = rd_point; 1960 hisi_sas_write32(hisi_hba, COMPL_Q_0_RD_PTR + (0x14 * queue), rd_point); 1961 } 1962 1963 static irqreturn_t cq_interrupt_v3_hw(int irq_no, void *p) 1964 { 1965 struct hisi_sas_cq *cq = p; 1966 struct hisi_hba *hisi_hba = cq->hisi_hba; 1967 int queue = cq->id; 1968 1969 hisi_sas_write32(hisi_hba, OQ_INT_SRC, 1 << queue); 1970 1971 tasklet_schedule(&cq->tasklet); 1972 1973 return IRQ_HANDLED; 1974 } 1975 1976 static int interrupt_init_v3_hw(struct hisi_hba *hisi_hba) 1977 { 1978 struct device *dev = hisi_hba->dev; 1979 struct pci_dev *pdev = hisi_hba->pci_dev; 1980 int vectors, rc; 1981 int i, k; 1982 int max_msi = HISI_SAS_MSI_COUNT_V3_HW; 1983 1984 vectors = pci_alloc_irq_vectors(hisi_hba->pci_dev, 1, 1985 max_msi, PCI_IRQ_MSI); 1986 if (vectors < max_msi) { 1987 dev_err(dev, "could not allocate all msi (%d)\n", vectors); 1988 return -ENOENT; 1989 } 1990 1991 rc = devm_request_irq(dev, pci_irq_vector(pdev, 1), 1992 int_phy_up_down_bcast_v3_hw, 0, 1993 DRV_NAME " phy", hisi_hba); 1994 if (rc) { 1995 dev_err(dev, "could not request phy interrupt, rc=%d\n", rc); 1996 rc = -ENOENT; 1997 goto free_irq_vectors; 1998 } 1999 2000 rc = devm_request_irq(dev, pci_irq_vector(pdev, 2), 2001 int_chnl_int_v3_hw, 0, 2002 DRV_NAME " channel", hisi_hba); 2003 if (rc) { 2004 dev_err(dev, "could not request chnl interrupt, rc=%d\n", rc); 2005 rc = -ENOENT; 2006 goto free_phy_irq; 2007 } 2008 2009 rc = devm_request_irq(dev, pci_irq_vector(pdev, 11), 2010 fatal_axi_int_v3_hw, 0, 2011 DRV_NAME " fatal", hisi_hba); 2012 if (rc) { 2013 dev_err(dev, "could not request fatal interrupt, rc=%d\n", rc); 2014 rc = -ENOENT; 2015 goto free_chnl_interrupt; 2016 } 2017 2018 /* Init tasklets for cq only */ 2019 for (i = 0; i < hisi_hba->queue_count; i++) { 2020 struct hisi_sas_cq *cq = &hisi_hba->cq[i]; 2021 struct tasklet_struct *t = &cq->tasklet; 2022 int nr = hisi_sas_intr_conv ? 16 : 16 + i; 2023 unsigned long irqflags = hisi_sas_intr_conv ? IRQF_SHARED : 0; 2024 2025 rc = devm_request_irq(dev, pci_irq_vector(pdev, nr), 2026 cq_interrupt_v3_hw, irqflags, 2027 DRV_NAME " cq", cq); 2028 if (rc) { 2029 dev_err(dev, 2030 "could not request cq%d interrupt, rc=%d\n", 2031 i, rc); 2032 rc = -ENOENT; 2033 goto free_cq_irqs; 2034 } 2035 2036 tasklet_init(t, cq_tasklet_v3_hw, (unsigned long)cq); 2037 } 2038 2039 return 0; 2040 2041 free_cq_irqs: 2042 for (k = 0; k < i; k++) { 2043 struct hisi_sas_cq *cq = &hisi_hba->cq[k]; 2044 int nr = hisi_sas_intr_conv ? 16 : 16 + k; 2045 2046 free_irq(pci_irq_vector(pdev, nr), cq); 2047 } 2048 free_irq(pci_irq_vector(pdev, 11), hisi_hba); 2049 free_chnl_interrupt: 2050 free_irq(pci_irq_vector(pdev, 2), hisi_hba); 2051 free_phy_irq: 2052 free_irq(pci_irq_vector(pdev, 1), hisi_hba); 2053 free_irq_vectors: 2054 pci_free_irq_vectors(pdev); 2055 return rc; 2056 } 2057 2058 static int hisi_sas_v3_init(struct hisi_hba *hisi_hba) 2059 { 2060 int rc; 2061 2062 rc = hw_init_v3_hw(hisi_hba); 2063 if (rc) 2064 return rc; 2065 2066 rc = interrupt_init_v3_hw(hisi_hba); 2067 if (rc) 2068 return rc; 2069 2070 return 0; 2071 } 2072 2073 static void phy_set_linkrate_v3_hw(struct hisi_hba *hisi_hba, int phy_no, 2074 struct sas_phy_linkrates *r) 2075 { 2076 enum sas_linkrate max = r->maximum_linkrate; 2077 u32 prog_phy_link_rate = 0x800; 2078 2079 prog_phy_link_rate |= hisi_sas_get_prog_phy_linkrate_mask(max); 2080 hisi_sas_phy_write32(hisi_hba, phy_no, PROG_PHY_LINK_RATE, 2081 prog_phy_link_rate); 2082 } 2083 2084 static void interrupt_disable_v3_hw(struct hisi_hba *hisi_hba) 2085 { 2086 struct pci_dev *pdev = hisi_hba->pci_dev; 2087 int i; 2088 2089 synchronize_irq(pci_irq_vector(pdev, 1)); 2090 synchronize_irq(pci_irq_vector(pdev, 2)); 2091 synchronize_irq(pci_irq_vector(pdev, 11)); 2092 for (i = 0; i < hisi_hba->queue_count; i++) { 2093 hisi_sas_write32(hisi_hba, OQ0_INT_SRC_MSK + 0x4 * i, 0x1); 2094 synchronize_irq(pci_irq_vector(pdev, i + 16)); 2095 } 2096 2097 hisi_sas_write32(hisi_hba, ENT_INT_SRC_MSK1, 0xffffffff); 2098 hisi_sas_write32(hisi_hba, ENT_INT_SRC_MSK2, 0xffffffff); 2099 hisi_sas_write32(hisi_hba, ENT_INT_SRC_MSK3, 0xffffffff); 2100 hisi_sas_write32(hisi_hba, SAS_ECC_INTR_MSK, 0xffffffff); 2101 2102 for (i = 0; i < hisi_hba->n_phy; i++) { 2103 hisi_sas_phy_write32(hisi_hba, i, CHL_INT1_MSK, 0xffffffff); 2104 hisi_sas_phy_write32(hisi_hba, i, CHL_INT2_MSK, 0xffffffff); 2105 hisi_sas_phy_write32(hisi_hba, i, PHYCTRL_NOT_RDY_MSK, 0x1); 2106 hisi_sas_phy_write32(hisi_hba, i, PHYCTRL_PHY_ENA_MSK, 0x1); 2107 hisi_sas_phy_write32(hisi_hba, i, SL_RX_BCAST_CHK_MSK, 0x1); 2108 } 2109 } 2110 2111 static u32 get_phys_state_v3_hw(struct hisi_hba *hisi_hba) 2112 { 2113 return hisi_sas_read32(hisi_hba, PHY_STATE); 2114 } 2115 2116 static void phy_get_events_v3_hw(struct hisi_hba *hisi_hba, int phy_no) 2117 { 2118 struct hisi_sas_phy *phy = &hisi_hba->phy[phy_no]; 2119 struct asd_sas_phy *sas_phy = &phy->sas_phy; 2120 struct sas_phy *sphy = sas_phy->phy; 2121 u32 reg_value; 2122 2123 /* loss dword sync */ 2124 reg_value = hisi_sas_phy_read32(hisi_hba, phy_no, ERR_CNT_DWS_LOST); 2125 sphy->loss_of_dword_sync_count += reg_value; 2126 2127 /* phy reset problem */ 2128 reg_value = hisi_sas_phy_read32(hisi_hba, phy_no, ERR_CNT_RESET_PROB); 2129 sphy->phy_reset_problem_count += reg_value; 2130 2131 /* invalid dword */ 2132 reg_value = hisi_sas_phy_read32(hisi_hba, phy_no, ERR_CNT_INVLD_DW); 2133 sphy->invalid_dword_count += reg_value; 2134 2135 /* disparity err */ 2136 reg_value = hisi_sas_phy_read32(hisi_hba, phy_no, ERR_CNT_DISP_ERR); 2137 sphy->running_disparity_error_count += reg_value; 2138 2139 } 2140 2141 static int disable_host_v3_hw(struct hisi_hba *hisi_hba) 2142 { 2143 struct device *dev = hisi_hba->dev; 2144 u32 status, reg_val; 2145 int rc; 2146 2147 interrupt_disable_v3_hw(hisi_hba); 2148 hisi_sas_write32(hisi_hba, DLVRY_QUEUE_ENABLE, 0x0); 2149 hisi_sas_kill_tasklets(hisi_hba); 2150 2151 hisi_sas_stop_phys(hisi_hba); 2152 2153 mdelay(10); 2154 2155 reg_val = hisi_sas_read32(hisi_hba, AXI_MASTER_CFG_BASE + 2156 AM_CTRL_GLOBAL); 2157 reg_val |= AM_CTRL_SHUTDOWN_REQ_MSK; 2158 hisi_sas_write32(hisi_hba, AXI_MASTER_CFG_BASE + 2159 AM_CTRL_GLOBAL, reg_val); 2160 2161 /* wait until bus idle */ 2162 rc = hisi_sas_read32_poll_timeout(AXI_MASTER_CFG_BASE + 2163 AM_CURR_TRANS_RETURN, status, 2164 status == 0x3, 10, 100); 2165 if (rc) { 2166 dev_err(dev, "axi bus is not idle, rc=%d\n", rc); 2167 return rc; 2168 } 2169 2170 return 0; 2171 } 2172 2173 static int soft_reset_v3_hw(struct hisi_hba *hisi_hba) 2174 { 2175 struct device *dev = hisi_hba->dev; 2176 int rc; 2177 2178 rc = disable_host_v3_hw(hisi_hba); 2179 if (rc) { 2180 dev_err(dev, "soft reset: disable host failed rc=%d\n", rc); 2181 return rc; 2182 } 2183 2184 hisi_sas_init_mem(hisi_hba); 2185 2186 return hw_init_v3_hw(hisi_hba); 2187 } 2188 2189 static int write_gpio_v3_hw(struct hisi_hba *hisi_hba, u8 reg_type, 2190 u8 reg_index, u8 reg_count, u8 *write_data) 2191 { 2192 struct device *dev = hisi_hba->dev; 2193 u32 *data = (u32 *)write_data; 2194 int i; 2195 2196 switch (reg_type) { 2197 case SAS_GPIO_REG_TX: 2198 if ((reg_index + reg_count) > ((hisi_hba->n_phy + 3) / 4)) { 2199 dev_err(dev, "write gpio: invalid reg range[%d, %d]\n", 2200 reg_index, reg_index + reg_count - 1); 2201 return -EINVAL; 2202 } 2203 2204 for (i = 0; i < reg_count; i++) 2205 hisi_sas_write32(hisi_hba, 2206 SAS_GPIO_TX_0_1 + (reg_index + i) * 4, 2207 data[i]); 2208 break; 2209 default: 2210 dev_err(dev, "write gpio: unsupported or bad reg type %d\n", 2211 reg_type); 2212 return -EINVAL; 2213 } 2214 2215 return 0; 2216 } 2217 2218 static int wait_cmds_complete_timeout_v3_hw(struct hisi_hba *hisi_hba, 2219 int delay_ms, int timeout_ms) 2220 { 2221 struct device *dev = hisi_hba->dev; 2222 int entries, entries_old = 0, time; 2223 2224 for (time = 0; time < timeout_ms; time += delay_ms) { 2225 entries = hisi_sas_read32(hisi_hba, CQE_SEND_CNT); 2226 if (entries == entries_old) 2227 break; 2228 2229 entries_old = entries; 2230 msleep(delay_ms); 2231 } 2232 2233 if (time >= timeout_ms) 2234 return -ETIMEDOUT; 2235 2236 dev_dbg(dev, "wait commands complete %dms\n", time); 2237 2238 return 0; 2239 } 2240 2241 static ssize_t intr_conv_v3_hw_show(struct device *dev, 2242 struct device_attribute *attr, char *buf) 2243 { 2244 return scnprintf(buf, PAGE_SIZE, "%u\n", hisi_sas_intr_conv); 2245 } 2246 static DEVICE_ATTR_RO(intr_conv_v3_hw); 2247 2248 static void config_intr_coal_v3_hw(struct hisi_hba *hisi_hba) 2249 { 2250 /* config those registers between enable and disable PHYs */ 2251 hisi_sas_stop_phys(hisi_hba); 2252 2253 if (hisi_hba->intr_coal_ticks == 0 || 2254 hisi_hba->intr_coal_count == 0) { 2255 hisi_sas_write32(hisi_hba, INT_COAL_EN, 0x1); 2256 hisi_sas_write32(hisi_hba, OQ_INT_COAL_TIME, 0x1); 2257 hisi_sas_write32(hisi_hba, OQ_INT_COAL_CNT, 0x1); 2258 } else { 2259 hisi_sas_write32(hisi_hba, INT_COAL_EN, 0x3); 2260 hisi_sas_write32(hisi_hba, OQ_INT_COAL_TIME, 2261 hisi_hba->intr_coal_ticks); 2262 hisi_sas_write32(hisi_hba, OQ_INT_COAL_CNT, 2263 hisi_hba->intr_coal_count); 2264 } 2265 phys_init_v3_hw(hisi_hba); 2266 } 2267 2268 static ssize_t intr_coal_ticks_v3_hw_show(struct device *dev, 2269 struct device_attribute *attr, 2270 char *buf) 2271 { 2272 struct Scsi_Host *shost = class_to_shost(dev); 2273 struct hisi_hba *hisi_hba = shost_priv(shost); 2274 2275 return scnprintf(buf, PAGE_SIZE, "%u\n", 2276 hisi_hba->intr_coal_ticks); 2277 } 2278 2279 static ssize_t intr_coal_ticks_v3_hw_store(struct device *dev, 2280 struct device_attribute *attr, 2281 const char *buf, size_t count) 2282 { 2283 struct Scsi_Host *shost = class_to_shost(dev); 2284 struct hisi_hba *hisi_hba = shost_priv(shost); 2285 u32 intr_coal_ticks; 2286 int ret; 2287 2288 ret = kstrtou32(buf, 10, &intr_coal_ticks); 2289 if (ret) { 2290 dev_err(dev, "Input data of interrupt coalesce unmatch\n"); 2291 return -EINVAL; 2292 } 2293 2294 if (intr_coal_ticks >= BIT(24)) { 2295 dev_err(dev, "intr_coal_ticks must be less than 2^24!\n"); 2296 return -EINVAL; 2297 } 2298 2299 hisi_hba->intr_coal_ticks = intr_coal_ticks; 2300 2301 config_intr_coal_v3_hw(hisi_hba); 2302 2303 return count; 2304 } 2305 static DEVICE_ATTR_RW(intr_coal_ticks_v3_hw); 2306 2307 static ssize_t intr_coal_count_v3_hw_show(struct device *dev, 2308 struct device_attribute 2309 *attr, char *buf) 2310 { 2311 struct Scsi_Host *shost = class_to_shost(dev); 2312 struct hisi_hba *hisi_hba = shost_priv(shost); 2313 2314 return scnprintf(buf, PAGE_SIZE, "%u\n", 2315 hisi_hba->intr_coal_count); 2316 } 2317 2318 static ssize_t intr_coal_count_v3_hw_store(struct device *dev, 2319 struct device_attribute 2320 *attr, const char *buf, size_t count) 2321 { 2322 struct Scsi_Host *shost = class_to_shost(dev); 2323 struct hisi_hba *hisi_hba = shost_priv(shost); 2324 u32 intr_coal_count; 2325 int ret; 2326 2327 ret = kstrtou32(buf, 10, &intr_coal_count); 2328 if (ret) { 2329 dev_err(dev, "Input data of interrupt coalesce unmatch\n"); 2330 return -EINVAL; 2331 } 2332 2333 if (intr_coal_count >= BIT(8)) { 2334 dev_err(dev, "intr_coal_count must be less than 2^8!\n"); 2335 return -EINVAL; 2336 } 2337 2338 hisi_hba->intr_coal_count = intr_coal_count; 2339 2340 config_intr_coal_v3_hw(hisi_hba); 2341 2342 return count; 2343 } 2344 static DEVICE_ATTR_RW(intr_coal_count_v3_hw); 2345 2346 static struct device_attribute *host_attrs_v3_hw[] = { 2347 &dev_attr_phy_event_threshold, 2348 &dev_attr_intr_conv_v3_hw, 2349 &dev_attr_intr_coal_ticks_v3_hw, 2350 &dev_attr_intr_coal_count_v3_hw, 2351 NULL 2352 }; 2353 2354 static const struct hisi_sas_debugfs_reg_lu debugfs_port_reg_lu[] = { 2355 HISI_SAS_DEBUGFS_REG(PHY_CFG), 2356 HISI_SAS_DEBUGFS_REG(HARD_PHY_LINKRATE), 2357 HISI_SAS_DEBUGFS_REG(PROG_PHY_LINK_RATE), 2358 HISI_SAS_DEBUGFS_REG(PHY_CTRL), 2359 HISI_SAS_DEBUGFS_REG(SL_CFG), 2360 HISI_SAS_DEBUGFS_REG(AIP_LIMIT), 2361 HISI_SAS_DEBUGFS_REG(SL_CONTROL), 2362 HISI_SAS_DEBUGFS_REG(RX_PRIMS_STATUS), 2363 HISI_SAS_DEBUGFS_REG(TX_ID_DWORD0), 2364 HISI_SAS_DEBUGFS_REG(TX_ID_DWORD1), 2365 HISI_SAS_DEBUGFS_REG(TX_ID_DWORD2), 2366 HISI_SAS_DEBUGFS_REG(TX_ID_DWORD3), 2367 HISI_SAS_DEBUGFS_REG(TX_ID_DWORD4), 2368 HISI_SAS_DEBUGFS_REG(TX_ID_DWORD5), 2369 HISI_SAS_DEBUGFS_REG(TX_ID_DWORD6), 2370 HISI_SAS_DEBUGFS_REG(TXID_AUTO), 2371 HISI_SAS_DEBUGFS_REG(RX_IDAF_DWORD0), 2372 HISI_SAS_DEBUGFS_REG(RXOP_CHECK_CFG_H), 2373 HISI_SAS_DEBUGFS_REG(STP_LINK_TIMER), 2374 HISI_SAS_DEBUGFS_REG(STP_LINK_TIMEOUT_STATE), 2375 HISI_SAS_DEBUGFS_REG(CON_CFG_DRIVER), 2376 HISI_SAS_DEBUGFS_REG(SAS_SSP_CON_TIMER_CFG), 2377 HISI_SAS_DEBUGFS_REG(SAS_SMP_CON_TIMER_CFG), 2378 HISI_SAS_DEBUGFS_REG(SAS_STP_CON_TIMER_CFG), 2379 HISI_SAS_DEBUGFS_REG(CHL_INT0), 2380 HISI_SAS_DEBUGFS_REG(CHL_INT1), 2381 HISI_SAS_DEBUGFS_REG(CHL_INT2), 2382 HISI_SAS_DEBUGFS_REG(CHL_INT0_MSK), 2383 HISI_SAS_DEBUGFS_REG(CHL_INT1_MSK), 2384 HISI_SAS_DEBUGFS_REG(CHL_INT2_MSK), 2385 HISI_SAS_DEBUGFS_REG(SAS_EC_INT_COAL_TIME), 2386 HISI_SAS_DEBUGFS_REG(CHL_INT_COAL_EN), 2387 HISI_SAS_DEBUGFS_REG(SAS_RX_TRAIN_TIMER), 2388 HISI_SAS_DEBUGFS_REG(PHY_CTRL_RDY_MSK), 2389 HISI_SAS_DEBUGFS_REG(PHYCTRL_NOT_RDY_MSK), 2390 HISI_SAS_DEBUGFS_REG(PHYCTRL_DWS_RESET_MSK), 2391 HISI_SAS_DEBUGFS_REG(PHYCTRL_PHY_ENA_MSK), 2392 HISI_SAS_DEBUGFS_REG(SL_RX_BCAST_CHK_MSK), 2393 HISI_SAS_DEBUGFS_REG(PHYCTRL_OOB_RESTART_MSK), 2394 HISI_SAS_DEBUGFS_REG(DMA_TX_STATUS), 2395 HISI_SAS_DEBUGFS_REG(DMA_RX_STATUS), 2396 HISI_SAS_DEBUGFS_REG(COARSETUNE_TIME), 2397 HISI_SAS_DEBUGFS_REG(ERR_CNT_DWS_LOST), 2398 HISI_SAS_DEBUGFS_REG(ERR_CNT_RESET_PROB), 2399 HISI_SAS_DEBUGFS_REG(ERR_CNT_INVLD_DW), 2400 HISI_SAS_DEBUGFS_REG(ERR_CNT_CODE_ERR), 2401 HISI_SAS_DEBUGFS_REG(ERR_CNT_DISP_ERR), 2402 {} 2403 }; 2404 2405 static const struct hisi_sas_debugfs_reg debugfs_port_reg = { 2406 .lu = debugfs_port_reg_lu, 2407 .count = 0x100, 2408 .base_off = PORT_BASE, 2409 .read_port_reg = hisi_sas_phy_read32, 2410 }; 2411 2412 static const struct hisi_sas_debugfs_reg_lu debugfs_global_reg_lu[] = { 2413 HISI_SAS_DEBUGFS_REG(DLVRY_QUEUE_ENABLE), 2414 HISI_SAS_DEBUGFS_REG(PHY_CONTEXT), 2415 HISI_SAS_DEBUGFS_REG(PHY_STATE), 2416 HISI_SAS_DEBUGFS_REG(PHY_PORT_NUM_MA), 2417 HISI_SAS_DEBUGFS_REG(PHY_CONN_RATE), 2418 HISI_SAS_DEBUGFS_REG(ITCT_CLR), 2419 HISI_SAS_DEBUGFS_REG(IO_SATA_BROKEN_MSG_ADDR_LO), 2420 HISI_SAS_DEBUGFS_REG(IO_SATA_BROKEN_MSG_ADDR_HI), 2421 HISI_SAS_DEBUGFS_REG(SATA_INITI_D2H_STORE_ADDR_LO), 2422 HISI_SAS_DEBUGFS_REG(SATA_INITI_D2H_STORE_ADDR_HI), 2423 HISI_SAS_DEBUGFS_REG(CFG_MAX_TAG), 2424 HISI_SAS_DEBUGFS_REG(HGC_SAS_TX_OPEN_FAIL_RETRY_CTRL), 2425 HISI_SAS_DEBUGFS_REG(HGC_SAS_TXFAIL_RETRY_CTRL), 2426 HISI_SAS_DEBUGFS_REG(HGC_GET_ITV_TIME), 2427 HISI_SAS_DEBUGFS_REG(DEVICE_MSG_WORK_MODE), 2428 HISI_SAS_DEBUGFS_REG(OPENA_WT_CONTI_TIME), 2429 HISI_SAS_DEBUGFS_REG(I_T_NEXUS_LOSS_TIME), 2430 HISI_SAS_DEBUGFS_REG(MAX_CON_TIME_LIMIT_TIME), 2431 HISI_SAS_DEBUGFS_REG(BUS_INACTIVE_LIMIT_TIME), 2432 HISI_SAS_DEBUGFS_REG(REJECT_TO_OPEN_LIMIT_TIME), 2433 HISI_SAS_DEBUGFS_REG(CQ_INT_CONVERGE_EN), 2434 HISI_SAS_DEBUGFS_REG(CFG_AGING_TIME), 2435 HISI_SAS_DEBUGFS_REG(HGC_DFX_CFG2), 2436 HISI_SAS_DEBUGFS_REG(CFG_ABT_SET_QUERY_IPTT), 2437 HISI_SAS_DEBUGFS_REG(CFG_ABT_SET_IPTT_DONE), 2438 HISI_SAS_DEBUGFS_REG(HGC_IOMB_PROC1_STATUS), 2439 HISI_SAS_DEBUGFS_REG(CHNL_INT_STATUS), 2440 HISI_SAS_DEBUGFS_REG(HGC_AXI_FIFO_ERR_INFO), 2441 HISI_SAS_DEBUGFS_REG(INT_COAL_EN), 2442 HISI_SAS_DEBUGFS_REG(OQ_INT_COAL_TIME), 2443 HISI_SAS_DEBUGFS_REG(OQ_INT_COAL_CNT), 2444 HISI_SAS_DEBUGFS_REG(ENT_INT_COAL_TIME), 2445 HISI_SAS_DEBUGFS_REG(ENT_INT_COAL_CNT), 2446 HISI_SAS_DEBUGFS_REG(OQ_INT_SRC), 2447 HISI_SAS_DEBUGFS_REG(OQ_INT_SRC_MSK), 2448 HISI_SAS_DEBUGFS_REG(ENT_INT_SRC1), 2449 HISI_SAS_DEBUGFS_REG(ENT_INT_SRC2), 2450 HISI_SAS_DEBUGFS_REG(ENT_INT_SRC3), 2451 HISI_SAS_DEBUGFS_REG(ENT_INT_SRC_MSK1), 2452 HISI_SAS_DEBUGFS_REG(ENT_INT_SRC_MSK2), 2453 HISI_SAS_DEBUGFS_REG(ENT_INT_SRC_MSK3), 2454 HISI_SAS_DEBUGFS_REG(CHNL_PHYUPDOWN_INT_MSK), 2455 HISI_SAS_DEBUGFS_REG(CHNL_ENT_INT_MSK), 2456 HISI_SAS_DEBUGFS_REG(HGC_COM_INT_MSK), 2457 HISI_SAS_DEBUGFS_REG(SAS_ECC_INTR), 2458 HISI_SAS_DEBUGFS_REG(SAS_ECC_INTR_MSK), 2459 HISI_SAS_DEBUGFS_REG(HGC_ERR_STAT_EN), 2460 HISI_SAS_DEBUGFS_REG(CQE_SEND_CNT), 2461 HISI_SAS_DEBUGFS_REG(DLVRY_Q_0_DEPTH), 2462 HISI_SAS_DEBUGFS_REG(DLVRY_Q_0_WR_PTR), 2463 HISI_SAS_DEBUGFS_REG(DLVRY_Q_0_RD_PTR), 2464 HISI_SAS_DEBUGFS_REG(HYPER_STREAM_ID_EN_CFG), 2465 HISI_SAS_DEBUGFS_REG(OQ0_INT_SRC_MSK), 2466 HISI_SAS_DEBUGFS_REG(COMPL_Q_0_DEPTH), 2467 HISI_SAS_DEBUGFS_REG(COMPL_Q_0_WR_PTR), 2468 HISI_SAS_DEBUGFS_REG(COMPL_Q_0_RD_PTR), 2469 HISI_SAS_DEBUGFS_REG(AWQOS_AWCACHE_CFG), 2470 HISI_SAS_DEBUGFS_REG(ARQOS_ARCACHE_CFG), 2471 HISI_SAS_DEBUGFS_REG(HILINK_ERR_DFX), 2472 HISI_SAS_DEBUGFS_REG(SAS_GPIO_CFG_0), 2473 HISI_SAS_DEBUGFS_REG(SAS_GPIO_CFG_1), 2474 HISI_SAS_DEBUGFS_REG(SAS_GPIO_TX_0_1), 2475 HISI_SAS_DEBUGFS_REG(SAS_CFG_DRIVE_VLD), 2476 {} 2477 }; 2478 2479 static const struct hisi_sas_debugfs_reg debugfs_global_reg = { 2480 .lu = debugfs_global_reg_lu, 2481 .count = 0x800, 2482 .read_global_reg = hisi_sas_read32, 2483 }; 2484 2485 static void debugfs_snapshot_prepare_v3_hw(struct hisi_hba *hisi_hba) 2486 { 2487 struct device *dev = hisi_hba->dev; 2488 2489 set_bit(HISI_SAS_REJECT_CMD_BIT, &hisi_hba->flags); 2490 2491 hisi_sas_write32(hisi_hba, DLVRY_QUEUE_ENABLE, 0); 2492 2493 if (wait_cmds_complete_timeout_v3_hw(hisi_hba, 100, 5000) == -ETIMEDOUT) 2494 dev_dbg(dev, "Wait commands complete timeout!\n"); 2495 2496 hisi_sas_kill_tasklets(hisi_hba); 2497 } 2498 2499 static void debugfs_snapshot_restore_v3_hw(struct hisi_hba *hisi_hba) 2500 { 2501 hisi_sas_write32(hisi_hba, DLVRY_QUEUE_ENABLE, 2502 (u32)((1ULL << hisi_hba->queue_count) - 1)); 2503 2504 clear_bit(HISI_SAS_REJECT_CMD_BIT, &hisi_hba->flags); 2505 } 2506 2507 static struct scsi_host_template sht_v3_hw = { 2508 .name = DRV_NAME, 2509 .module = THIS_MODULE, 2510 .queuecommand = sas_queuecommand, 2511 .target_alloc = sas_target_alloc, 2512 .slave_configure = hisi_sas_slave_configure, 2513 .scan_finished = hisi_sas_scan_finished, 2514 .scan_start = hisi_sas_scan_start, 2515 .change_queue_depth = sas_change_queue_depth, 2516 .bios_param = sas_bios_param, 2517 .this_id = -1, 2518 .sg_tablesize = HISI_SAS_SGE_PAGE_CNT, 2519 .max_sectors = SCSI_DEFAULT_MAX_SECTORS, 2520 .eh_device_reset_handler = sas_eh_device_reset_handler, 2521 .eh_target_reset_handler = sas_eh_target_reset_handler, 2522 .target_destroy = sas_target_destroy, 2523 .ioctl = sas_ioctl, 2524 .shost_attrs = host_attrs_v3_hw, 2525 .tag_alloc_policy = BLK_TAG_ALLOC_RR, 2526 }; 2527 2528 static const struct hisi_sas_hw hisi_sas_v3_hw = { 2529 .hw_init = hisi_sas_v3_init, 2530 .setup_itct = setup_itct_v3_hw, 2531 .max_command_entries = HISI_SAS_COMMAND_ENTRIES_V3_HW, 2532 .get_wideport_bitmap = get_wideport_bitmap_v3_hw, 2533 .complete_hdr_size = sizeof(struct hisi_sas_complete_v3_hdr), 2534 .clear_itct = clear_itct_v3_hw, 2535 .sl_notify_ssp = sl_notify_ssp_v3_hw, 2536 .prep_ssp = prep_ssp_v3_hw, 2537 .prep_smp = prep_smp_v3_hw, 2538 .prep_stp = prep_ata_v3_hw, 2539 .prep_abort = prep_abort_v3_hw, 2540 .get_free_slot = get_free_slot_v3_hw, 2541 .start_delivery = start_delivery_v3_hw, 2542 .slot_complete = slot_complete_v3_hw, 2543 .phys_init = phys_init_v3_hw, 2544 .phy_start = start_phy_v3_hw, 2545 .phy_disable = disable_phy_v3_hw, 2546 .phy_hard_reset = phy_hard_reset_v3_hw, 2547 .phy_get_max_linkrate = phy_get_max_linkrate_v3_hw, 2548 .phy_set_linkrate = phy_set_linkrate_v3_hw, 2549 .dereg_device = dereg_device_v3_hw, 2550 .soft_reset = soft_reset_v3_hw, 2551 .get_phys_state = get_phys_state_v3_hw, 2552 .get_events = phy_get_events_v3_hw, 2553 .write_gpio = write_gpio_v3_hw, 2554 .wait_cmds_complete_timeout = wait_cmds_complete_timeout_v3_hw, 2555 .debugfs_reg_global = &debugfs_global_reg, 2556 .debugfs_reg_port = &debugfs_port_reg, 2557 .snapshot_prepare = debugfs_snapshot_prepare_v3_hw, 2558 .snapshot_restore = debugfs_snapshot_restore_v3_hw, 2559 }; 2560 2561 static struct Scsi_Host * 2562 hisi_sas_shost_alloc_pci(struct pci_dev *pdev) 2563 { 2564 struct Scsi_Host *shost; 2565 struct hisi_hba *hisi_hba; 2566 struct device *dev = &pdev->dev; 2567 2568 shost = scsi_host_alloc(&sht_v3_hw, sizeof(*hisi_hba)); 2569 if (!shost) { 2570 dev_err(dev, "shost alloc failed\n"); 2571 return NULL; 2572 } 2573 hisi_hba = shost_priv(shost); 2574 2575 INIT_WORK(&hisi_hba->rst_work, hisi_sas_rst_work_handler); 2576 INIT_WORK(&hisi_hba->debugfs_work, hisi_sas_debugfs_work_handler); 2577 hisi_hba->hw = &hisi_sas_v3_hw; 2578 hisi_hba->pci_dev = pdev; 2579 hisi_hba->dev = dev; 2580 hisi_hba->shost = shost; 2581 SHOST_TO_SAS_HA(shost) = &hisi_hba->sha; 2582 2583 if (prot_mask & ~HISI_SAS_PROT_MASK) 2584 dev_err(dev, "unsupported protection mask 0x%x, using default (0x0)\n", 2585 prot_mask); 2586 else 2587 hisi_hba->prot_mask = prot_mask; 2588 2589 timer_setup(&hisi_hba->timer, NULL, 0); 2590 2591 if (hisi_sas_get_fw_info(hisi_hba) < 0) 2592 goto err_out; 2593 2594 if (hisi_sas_alloc(hisi_hba)) { 2595 hisi_sas_free(hisi_hba); 2596 goto err_out; 2597 } 2598 2599 return shost; 2600 err_out: 2601 scsi_host_put(shost); 2602 dev_err(dev, "shost alloc failed\n"); 2603 return NULL; 2604 } 2605 2606 static int 2607 hisi_sas_v3_probe(struct pci_dev *pdev, const struct pci_device_id *id) 2608 { 2609 struct Scsi_Host *shost; 2610 struct hisi_hba *hisi_hba; 2611 struct device *dev = &pdev->dev; 2612 struct asd_sas_phy **arr_phy; 2613 struct asd_sas_port **arr_port; 2614 struct sas_ha_struct *sha; 2615 int rc, phy_nr, port_nr, i; 2616 2617 rc = pci_enable_device(pdev); 2618 if (rc) 2619 goto err_out; 2620 2621 pci_set_master(pdev); 2622 2623 rc = pci_request_regions(pdev, DRV_NAME); 2624 if (rc) 2625 goto err_out_disable_device; 2626 2627 if (dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64)) || 2628 dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32))) { 2629 dev_err(dev, "No usable DMA addressing method\n"); 2630 rc = -EIO; 2631 goto err_out_regions; 2632 } 2633 2634 shost = hisi_sas_shost_alloc_pci(pdev); 2635 if (!shost) { 2636 rc = -ENOMEM; 2637 goto err_out_regions; 2638 } 2639 2640 sha = SHOST_TO_SAS_HA(shost); 2641 hisi_hba = shost_priv(shost); 2642 dev_set_drvdata(dev, sha); 2643 2644 hisi_hba->regs = pcim_iomap(pdev, 5, 0); 2645 if (!hisi_hba->regs) { 2646 dev_err(dev, "cannot map register.\n"); 2647 rc = -ENOMEM; 2648 goto err_out_ha; 2649 } 2650 2651 phy_nr = port_nr = hisi_hba->n_phy; 2652 2653 arr_phy = devm_kcalloc(dev, phy_nr, sizeof(void *), GFP_KERNEL); 2654 arr_port = devm_kcalloc(dev, port_nr, sizeof(void *), GFP_KERNEL); 2655 if (!arr_phy || !arr_port) { 2656 rc = -ENOMEM; 2657 goto err_out_ha; 2658 } 2659 2660 sha->sas_phy = arr_phy; 2661 sha->sas_port = arr_port; 2662 sha->core.shost = shost; 2663 sha->lldd_ha = hisi_hba; 2664 2665 shost->transportt = hisi_sas_stt; 2666 shost->max_id = HISI_SAS_MAX_DEVICES; 2667 shost->max_lun = ~0; 2668 shost->max_channel = 1; 2669 shost->max_cmd_len = 16; 2670 shost->can_queue = hisi_hba->hw->max_command_entries - 2671 HISI_SAS_RESERVED_IPTT_CNT; 2672 shost->cmd_per_lun = hisi_hba->hw->max_command_entries - 2673 HISI_SAS_RESERVED_IPTT_CNT; 2674 2675 sha->sas_ha_name = DRV_NAME; 2676 sha->dev = dev; 2677 sha->lldd_module = THIS_MODULE; 2678 sha->sas_addr = &hisi_hba->sas_addr[0]; 2679 sha->num_phys = hisi_hba->n_phy; 2680 sha->core.shost = hisi_hba->shost; 2681 2682 for (i = 0; i < hisi_hba->n_phy; i++) { 2683 sha->sas_phy[i] = &hisi_hba->phy[i].sas_phy; 2684 sha->sas_port[i] = &hisi_hba->port[i].sas_port; 2685 } 2686 2687 if (hisi_sas_debugfs_enable) 2688 hisi_sas_debugfs_init(hisi_hba); 2689 2690 rc = scsi_add_host(shost, dev); 2691 if (rc) 2692 goto err_out_ha; 2693 2694 rc = sas_register_ha(sha); 2695 if (rc) 2696 goto err_out_register_ha; 2697 2698 rc = hisi_hba->hw->hw_init(hisi_hba); 2699 if (rc) 2700 goto err_out_register_ha; 2701 2702 if (hisi_hba->prot_mask) { 2703 dev_info(dev, "Registering for DIF/DIX prot_mask=0x%x\n", 2704 prot_mask); 2705 scsi_host_set_prot(hisi_hba->shost, prot_mask); 2706 } 2707 2708 scsi_scan_host(shost); 2709 2710 return 0; 2711 2712 err_out_register_ha: 2713 scsi_remove_host(shost); 2714 err_out_ha: 2715 scsi_host_put(shost); 2716 err_out_regions: 2717 pci_release_regions(pdev); 2718 err_out_disable_device: 2719 pci_disable_device(pdev); 2720 err_out: 2721 return rc; 2722 } 2723 2724 static void 2725 hisi_sas_v3_destroy_irqs(struct pci_dev *pdev, struct hisi_hba *hisi_hba) 2726 { 2727 int i; 2728 2729 free_irq(pci_irq_vector(pdev, 1), hisi_hba); 2730 free_irq(pci_irq_vector(pdev, 2), hisi_hba); 2731 free_irq(pci_irq_vector(pdev, 11), hisi_hba); 2732 for (i = 0; i < hisi_hba->queue_count; i++) { 2733 struct hisi_sas_cq *cq = &hisi_hba->cq[i]; 2734 int nr = hisi_sas_intr_conv ? 16 : 16 + i; 2735 2736 free_irq(pci_irq_vector(pdev, nr), cq); 2737 } 2738 pci_free_irq_vectors(pdev); 2739 } 2740 2741 static void hisi_sas_v3_remove(struct pci_dev *pdev) 2742 { 2743 struct device *dev = &pdev->dev; 2744 struct sas_ha_struct *sha = dev_get_drvdata(dev); 2745 struct hisi_hba *hisi_hba = sha->lldd_ha; 2746 struct Scsi_Host *shost = sha->core.shost; 2747 2748 hisi_sas_debugfs_exit(hisi_hba); 2749 2750 if (timer_pending(&hisi_hba->timer)) 2751 del_timer(&hisi_hba->timer); 2752 2753 sas_unregister_ha(sha); 2754 sas_remove_host(sha->core.shost); 2755 2756 hisi_sas_v3_destroy_irqs(pdev, hisi_hba); 2757 hisi_sas_kill_tasklets(hisi_hba); 2758 pci_release_regions(pdev); 2759 pci_disable_device(pdev); 2760 hisi_sas_free(hisi_hba); 2761 scsi_host_put(shost); 2762 } 2763 2764 static const struct hisi_sas_hw_error sas_ras_intr0_nfe[] = { 2765 { .irq_msk = BIT(19), .msg = "HILINK_INT" }, 2766 { .irq_msk = BIT(20), .msg = "HILINK_PLL0_OUT_OF_LOCK" }, 2767 { .irq_msk = BIT(21), .msg = "HILINK_PLL1_OUT_OF_LOCK" }, 2768 { .irq_msk = BIT(22), .msg = "HILINK_LOSS_OF_REFCLK0" }, 2769 { .irq_msk = BIT(23), .msg = "HILINK_LOSS_OF_REFCLK1" }, 2770 { .irq_msk = BIT(24), .msg = "DMAC0_TX_POISON" }, 2771 { .irq_msk = BIT(25), .msg = "DMAC1_TX_POISON" }, 2772 { .irq_msk = BIT(26), .msg = "DMAC2_TX_POISON" }, 2773 { .irq_msk = BIT(27), .msg = "DMAC3_TX_POISON" }, 2774 { .irq_msk = BIT(28), .msg = "DMAC4_TX_POISON" }, 2775 { .irq_msk = BIT(29), .msg = "DMAC5_TX_POISON" }, 2776 { .irq_msk = BIT(30), .msg = "DMAC6_TX_POISON" }, 2777 { .irq_msk = BIT(31), .msg = "DMAC7_TX_POISON" }, 2778 }; 2779 2780 static const struct hisi_sas_hw_error sas_ras_intr1_nfe[] = { 2781 { .irq_msk = BIT(0), .msg = "RXM_CFG_MEM3_ECC2B_INTR" }, 2782 { .irq_msk = BIT(1), .msg = "RXM_CFG_MEM2_ECC2B_INTR" }, 2783 { .irq_msk = BIT(2), .msg = "RXM_CFG_MEM1_ECC2B_INTR" }, 2784 { .irq_msk = BIT(3), .msg = "RXM_CFG_MEM0_ECC2B_INTR" }, 2785 { .irq_msk = BIT(4), .msg = "HGC_CQE_ECC2B_INTR" }, 2786 { .irq_msk = BIT(5), .msg = "LM_CFG_IOSTL_ECC2B_INTR" }, 2787 { .irq_msk = BIT(6), .msg = "LM_CFG_ITCTL_ECC2B_INTR" }, 2788 { .irq_msk = BIT(7), .msg = "HGC_ITCT_ECC2B_INTR" }, 2789 { .irq_msk = BIT(8), .msg = "HGC_IOST_ECC2B_INTR" }, 2790 { .irq_msk = BIT(9), .msg = "HGC_DQE_ECC2B_INTR" }, 2791 { .irq_msk = BIT(10), .msg = "DMAC0_RAM_ECC2B_INTR" }, 2792 { .irq_msk = BIT(11), .msg = "DMAC1_RAM_ECC2B_INTR" }, 2793 { .irq_msk = BIT(12), .msg = "DMAC2_RAM_ECC2B_INTR" }, 2794 { .irq_msk = BIT(13), .msg = "DMAC3_RAM_ECC2B_INTR" }, 2795 { .irq_msk = BIT(14), .msg = "DMAC4_RAM_ECC2B_INTR" }, 2796 { .irq_msk = BIT(15), .msg = "DMAC5_RAM_ECC2B_INTR" }, 2797 { .irq_msk = BIT(16), .msg = "DMAC6_RAM_ECC2B_INTR" }, 2798 { .irq_msk = BIT(17), .msg = "DMAC7_RAM_ECC2B_INTR" }, 2799 { .irq_msk = BIT(18), .msg = "OOO_RAM_ECC2B_INTR" }, 2800 { .irq_msk = BIT(20), .msg = "HGC_DQE_POISON_INTR" }, 2801 { .irq_msk = BIT(21), .msg = "HGC_IOST_POISON_INTR" }, 2802 { .irq_msk = BIT(22), .msg = "HGC_ITCT_POISON_INTR" }, 2803 { .irq_msk = BIT(23), .msg = "HGC_ITCT_NCQ_POISON_INTR" }, 2804 { .irq_msk = BIT(24), .msg = "DMAC0_RX_POISON" }, 2805 { .irq_msk = BIT(25), .msg = "DMAC1_RX_POISON" }, 2806 { .irq_msk = BIT(26), .msg = "DMAC2_RX_POISON" }, 2807 { .irq_msk = BIT(27), .msg = "DMAC3_RX_POISON" }, 2808 { .irq_msk = BIT(28), .msg = "DMAC4_RX_POISON" }, 2809 { .irq_msk = BIT(29), .msg = "DMAC5_RX_POISON" }, 2810 { .irq_msk = BIT(30), .msg = "DMAC6_RX_POISON" }, 2811 { .irq_msk = BIT(31), .msg = "DMAC7_RX_POISON" }, 2812 }; 2813 2814 static const struct hisi_sas_hw_error sas_ras_intr2_nfe[] = { 2815 { .irq_msk = BIT(0), .msg = "DMAC0_AXI_BUS_ERR" }, 2816 { .irq_msk = BIT(1), .msg = "DMAC1_AXI_BUS_ERR" }, 2817 { .irq_msk = BIT(2), .msg = "DMAC2_AXI_BUS_ERR" }, 2818 { .irq_msk = BIT(3), .msg = "DMAC3_AXI_BUS_ERR" }, 2819 { .irq_msk = BIT(4), .msg = "DMAC4_AXI_BUS_ERR" }, 2820 { .irq_msk = BIT(5), .msg = "DMAC5_AXI_BUS_ERR" }, 2821 { .irq_msk = BIT(6), .msg = "DMAC6_AXI_BUS_ERR" }, 2822 { .irq_msk = BIT(7), .msg = "DMAC7_AXI_BUS_ERR" }, 2823 { .irq_msk = BIT(8), .msg = "DMAC0_FIFO_OMIT_ERR" }, 2824 { .irq_msk = BIT(9), .msg = "DMAC1_FIFO_OMIT_ERR" }, 2825 { .irq_msk = BIT(10), .msg = "DMAC2_FIFO_OMIT_ERR" }, 2826 { .irq_msk = BIT(11), .msg = "DMAC3_FIFO_OMIT_ERR" }, 2827 { .irq_msk = BIT(12), .msg = "DMAC4_FIFO_OMIT_ERR" }, 2828 { .irq_msk = BIT(13), .msg = "DMAC5_FIFO_OMIT_ERR" }, 2829 { .irq_msk = BIT(14), .msg = "DMAC6_FIFO_OMIT_ERR" }, 2830 { .irq_msk = BIT(15), .msg = "DMAC7_FIFO_OMIT_ERR" }, 2831 { .irq_msk = BIT(16), .msg = "HGC_RLSE_SLOT_UNMATCH" }, 2832 { .irq_msk = BIT(17), .msg = "HGC_LM_ADD_FCH_LIST_ERR" }, 2833 { .irq_msk = BIT(18), .msg = "HGC_AXI_BUS_ERR" }, 2834 { .irq_msk = BIT(19), .msg = "HGC_FIFO_OMIT_ERR" }, 2835 }; 2836 2837 static bool process_non_fatal_error_v3_hw(struct hisi_hba *hisi_hba) 2838 { 2839 struct device *dev = hisi_hba->dev; 2840 const struct hisi_sas_hw_error *ras_error; 2841 bool need_reset = false; 2842 u32 irq_value; 2843 int i; 2844 2845 irq_value = hisi_sas_read32(hisi_hba, SAS_RAS_INTR0); 2846 for (i = 0; i < ARRAY_SIZE(sas_ras_intr0_nfe); i++) { 2847 ras_error = &sas_ras_intr0_nfe[i]; 2848 if (ras_error->irq_msk & irq_value) { 2849 dev_warn(dev, "SAS_RAS_INTR0: %s(irq_value=0x%x) found.\n", 2850 ras_error->msg, irq_value); 2851 need_reset = true; 2852 } 2853 } 2854 hisi_sas_write32(hisi_hba, SAS_RAS_INTR0, irq_value); 2855 2856 irq_value = hisi_sas_read32(hisi_hba, SAS_RAS_INTR1); 2857 for (i = 0; i < ARRAY_SIZE(sas_ras_intr1_nfe); i++) { 2858 ras_error = &sas_ras_intr1_nfe[i]; 2859 if (ras_error->irq_msk & irq_value) { 2860 dev_warn(dev, "SAS_RAS_INTR1: %s(irq_value=0x%x) found.\n", 2861 ras_error->msg, irq_value); 2862 need_reset = true; 2863 } 2864 } 2865 hisi_sas_write32(hisi_hba, SAS_RAS_INTR1, irq_value); 2866 2867 irq_value = hisi_sas_read32(hisi_hba, SAS_RAS_INTR2); 2868 for (i = 0; i < ARRAY_SIZE(sas_ras_intr2_nfe); i++) { 2869 ras_error = &sas_ras_intr2_nfe[i]; 2870 if (ras_error->irq_msk & irq_value) { 2871 dev_warn(dev, "SAS_RAS_INTR2: %s(irq_value=0x%x) found.\n", 2872 ras_error->msg, irq_value); 2873 need_reset = true; 2874 } 2875 } 2876 hisi_sas_write32(hisi_hba, SAS_RAS_INTR2, irq_value); 2877 2878 return need_reset; 2879 } 2880 2881 static pci_ers_result_t hisi_sas_error_detected_v3_hw(struct pci_dev *pdev, 2882 pci_channel_state_t state) 2883 { 2884 struct sas_ha_struct *sha = pci_get_drvdata(pdev); 2885 struct hisi_hba *hisi_hba = sha->lldd_ha; 2886 struct device *dev = hisi_hba->dev; 2887 2888 dev_info(dev, "PCI error: detected callback, state(%d)!!\n", state); 2889 if (state == pci_channel_io_perm_failure) 2890 return PCI_ERS_RESULT_DISCONNECT; 2891 2892 if (process_non_fatal_error_v3_hw(hisi_hba)) 2893 return PCI_ERS_RESULT_NEED_RESET; 2894 2895 return PCI_ERS_RESULT_CAN_RECOVER; 2896 } 2897 2898 static pci_ers_result_t hisi_sas_mmio_enabled_v3_hw(struct pci_dev *pdev) 2899 { 2900 return PCI_ERS_RESULT_RECOVERED; 2901 } 2902 2903 static pci_ers_result_t hisi_sas_slot_reset_v3_hw(struct pci_dev *pdev) 2904 { 2905 struct sas_ha_struct *sha = pci_get_drvdata(pdev); 2906 struct hisi_hba *hisi_hba = sha->lldd_ha; 2907 struct device *dev = hisi_hba->dev; 2908 HISI_SAS_DECLARE_RST_WORK_ON_STACK(r); 2909 2910 dev_info(dev, "PCI error: slot reset callback!!\n"); 2911 queue_work(hisi_hba->wq, &r.work); 2912 wait_for_completion(r.completion); 2913 if (r.done) 2914 return PCI_ERS_RESULT_RECOVERED; 2915 2916 return PCI_ERS_RESULT_DISCONNECT; 2917 } 2918 2919 static void hisi_sas_reset_prepare_v3_hw(struct pci_dev *pdev) 2920 { 2921 struct sas_ha_struct *sha = pci_get_drvdata(pdev); 2922 struct hisi_hba *hisi_hba = sha->lldd_ha; 2923 struct device *dev = hisi_hba->dev; 2924 int rc; 2925 2926 dev_info(dev, "FLR prepare\n"); 2927 set_bit(HISI_SAS_RESET_BIT, &hisi_hba->flags); 2928 hisi_sas_controller_reset_prepare(hisi_hba); 2929 2930 rc = disable_host_v3_hw(hisi_hba); 2931 if (rc) 2932 dev_err(dev, "FLR: disable host failed rc=%d\n", rc); 2933 } 2934 2935 static void hisi_sas_reset_done_v3_hw(struct pci_dev *pdev) 2936 { 2937 struct sas_ha_struct *sha = pci_get_drvdata(pdev); 2938 struct hisi_hba *hisi_hba = sha->lldd_ha; 2939 struct device *dev = hisi_hba->dev; 2940 int rc; 2941 2942 hisi_sas_init_mem(hisi_hba); 2943 2944 rc = hw_init_v3_hw(hisi_hba); 2945 if (rc) { 2946 dev_err(dev, "FLR: hw init failed rc=%d\n", rc); 2947 return; 2948 } 2949 2950 hisi_sas_controller_reset_done(hisi_hba); 2951 dev_info(dev, "FLR done\n"); 2952 } 2953 2954 enum { 2955 /* instances of the controller */ 2956 hip08, 2957 }; 2958 2959 static int hisi_sas_v3_suspend(struct pci_dev *pdev, pm_message_t state) 2960 { 2961 struct sas_ha_struct *sha = pci_get_drvdata(pdev); 2962 struct hisi_hba *hisi_hba = sha->lldd_ha; 2963 struct device *dev = hisi_hba->dev; 2964 struct Scsi_Host *shost = hisi_hba->shost; 2965 pci_power_t device_state; 2966 int rc; 2967 2968 if (!pdev->pm_cap) { 2969 dev_err(dev, "PCI PM not supported\n"); 2970 return -ENODEV; 2971 } 2972 2973 if (test_and_set_bit(HISI_SAS_RESET_BIT, &hisi_hba->flags)) 2974 return -1; 2975 2976 scsi_block_requests(shost); 2977 set_bit(HISI_SAS_REJECT_CMD_BIT, &hisi_hba->flags); 2978 flush_workqueue(hisi_hba->wq); 2979 2980 rc = disable_host_v3_hw(hisi_hba); 2981 if (rc) { 2982 dev_err(dev, "PM suspend: disable host failed rc=%d\n", rc); 2983 clear_bit(HISI_SAS_REJECT_CMD_BIT, &hisi_hba->flags); 2984 clear_bit(HISI_SAS_RESET_BIT, &hisi_hba->flags); 2985 scsi_unblock_requests(shost); 2986 return rc; 2987 } 2988 2989 hisi_sas_init_mem(hisi_hba); 2990 2991 device_state = pci_choose_state(pdev, state); 2992 dev_warn(dev, "entering operating state [D%d]\n", 2993 device_state); 2994 pci_save_state(pdev); 2995 pci_disable_device(pdev); 2996 pci_set_power_state(pdev, device_state); 2997 2998 hisi_sas_release_tasks(hisi_hba); 2999 3000 sas_suspend_ha(sha); 3001 return 0; 3002 } 3003 3004 static int hisi_sas_v3_resume(struct pci_dev *pdev) 3005 { 3006 struct sas_ha_struct *sha = pci_get_drvdata(pdev); 3007 struct hisi_hba *hisi_hba = sha->lldd_ha; 3008 struct Scsi_Host *shost = hisi_hba->shost; 3009 struct device *dev = hisi_hba->dev; 3010 unsigned int rc; 3011 pci_power_t device_state = pdev->current_state; 3012 3013 dev_warn(dev, "resuming from operating state [D%d]\n", 3014 device_state); 3015 pci_set_power_state(pdev, PCI_D0); 3016 pci_enable_wake(pdev, PCI_D0, 0); 3017 pci_restore_state(pdev); 3018 rc = pci_enable_device(pdev); 3019 if (rc) 3020 dev_err(dev, "enable device failed during resume (%d)\n", rc); 3021 3022 pci_set_master(pdev); 3023 scsi_unblock_requests(shost); 3024 clear_bit(HISI_SAS_REJECT_CMD_BIT, &hisi_hba->flags); 3025 3026 sas_prep_resume_ha(sha); 3027 init_reg_v3_hw(hisi_hba); 3028 hisi_hba->hw->phys_init(hisi_hba); 3029 sas_resume_ha(sha); 3030 clear_bit(HISI_SAS_RESET_BIT, &hisi_hba->flags); 3031 3032 return 0; 3033 } 3034 3035 static const struct pci_device_id sas_v3_pci_table[] = { 3036 { PCI_VDEVICE(HUAWEI, 0xa230), hip08 }, 3037 {} 3038 }; 3039 MODULE_DEVICE_TABLE(pci, sas_v3_pci_table); 3040 3041 static const struct pci_error_handlers hisi_sas_err_handler = { 3042 .error_detected = hisi_sas_error_detected_v3_hw, 3043 .mmio_enabled = hisi_sas_mmio_enabled_v3_hw, 3044 .slot_reset = hisi_sas_slot_reset_v3_hw, 3045 .reset_prepare = hisi_sas_reset_prepare_v3_hw, 3046 .reset_done = hisi_sas_reset_done_v3_hw, 3047 }; 3048 3049 static struct pci_driver sas_v3_pci_driver = { 3050 .name = DRV_NAME, 3051 .id_table = sas_v3_pci_table, 3052 .probe = hisi_sas_v3_probe, 3053 .remove = hisi_sas_v3_remove, 3054 .suspend = hisi_sas_v3_suspend, 3055 .resume = hisi_sas_v3_resume, 3056 .err_handler = &hisi_sas_err_handler, 3057 }; 3058 3059 module_pci_driver(sas_v3_pci_driver); 3060 module_param_named(intr_conv, hisi_sas_intr_conv, bool, 0444); 3061 3062 MODULE_LICENSE("GPL"); 3063 MODULE_AUTHOR("John Garry <john.garry@huawei.com>"); 3064 MODULE_DESCRIPTION("HISILICON SAS controller v3 hw driver based on pci device"); 3065 MODULE_ALIAS("pci:" DRV_NAME); 3066