drivers/scsi/hisi_sas/hisi_sas.h

   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2 /*
   3  * Copyright (c) 2015 Linaro Ltd.
   4  * Copyright (c) 2015 Hisilicon Limited.
   5  */
   6
   7 #ifndef _HISI_SAS_H_
   8 #define _HISI_SAS_H_
   9
  10 #include <linux/acpi.h>
  11 #include <linux/blk-mq.h>
  12 #include <linux/blk-mq-pci.h>
  13 #include <linux/clk.h>
  14 #include <linux/debugfs.h>
  15 #include <linux/dmapool.h>
  16 #include <linux/iopoll.h>
  17 #include <linux/irq.h>
  18 #include <linux/lcm.h>
  19 #include <linux/libata.h>
  20 #include <linux/mfd/syscon.h>
  21 #include <linux/module.h>
  22 #include <linux/of_address.h>
  23 #include <linux/pci.h>
  24 #include <linux/platform_device.h>
  25 #include <linux/pm_runtime.h>
  26 #include <linux/property.h>
  27 #include <linux/regmap.h>
  28 #include <linux/timer.h>
  29 #include <scsi/sas_ata.h>
  30 #include <scsi/libsas.h>
  31
  32 #define HISI_SAS_MAX_PHYS       9
  33 #define HISI_SAS_MAX_QUEUES     32
  34 #define HISI_SAS_QUEUE_SLOTS    4096
  35 #define HISI_SAS_MAX_ITCT_ENTRIES 1024
  36 #define HISI_SAS_MAX_DEVICES HISI_SAS_MAX_ITCT_ENTRIES
  37 #define HISI_SAS_RESETTING_BIT  0
  38 #define HISI_SAS_REJECT_CMD_BIT 1
  39 #define HISI_SAS_PM_BIT         2
  40 #define HISI_SAS_HW_FAULT_BIT   3
  41 #define HISI_SAS_MAX_COMMANDS (HISI_SAS_QUEUE_SLOTS)
  42 #define HISI_SAS_RESERVED_IPTT  96
  43 #define HISI_SAS_UNRESERVED_IPTT \
  44         (HISI_SAS_MAX_COMMANDS - HISI_SAS_RESERVED_IPTT)
  45
  46 #define HISI_SAS_IOST_ITCT_CACHE_NUM 64
  47 #define HISI_SAS_IOST_ITCT_CACHE_DW_SZ 10
  48 #define HISI_SAS_FIFO_DATA_DW_SIZE 32
  49
  50 #define HISI_SAS_STATUS_BUF_SZ (sizeof(struct hisi_sas_status_buffer))
  51 #define HISI_SAS_COMMAND_TABLE_SZ (sizeof(union hisi_sas_command_table))
  52
  53 #define hisi_sas_status_buf_addr(buf) \
  54         ((buf) + offsetof(struct hisi_sas_slot_buf_table, status_buffer))
  55 #define hisi_sas_status_buf_addr_mem(slot) hisi_sas_status_buf_addr((slot)->buf)
  56 #define hisi_sas_status_buf_addr_dma(slot) \
  57         hisi_sas_status_buf_addr((slot)->buf_dma)
  58
  59 #define hisi_sas_cmd_hdr_addr(buf) \
  60         ((buf) + offsetof(struct hisi_sas_slot_buf_table, command_header))
  61 #define hisi_sas_cmd_hdr_addr_mem(slot) hisi_sas_cmd_hdr_addr((slot)->buf)
  62 #define hisi_sas_cmd_hdr_addr_dma(slot) hisi_sas_cmd_hdr_addr((slot)->buf_dma)
  63
  64 #define hisi_sas_sge_addr(buf) \
  65         ((buf) + offsetof(struct hisi_sas_slot_buf_table, sge_page))
  66 #define hisi_sas_sge_addr_mem(slot) hisi_sas_sge_addr((slot)->buf)
  67 #define hisi_sas_sge_addr_dma(slot) hisi_sas_sge_addr((slot)->buf_dma)
  68
  69 #define hisi_sas_sge_dif_addr(buf) \
  70         ((buf) + offsetof(struct hisi_sas_slot_dif_buf_table, sge_dif_page))
  71 #define hisi_sas_sge_dif_addr_mem(slot) hisi_sas_sge_dif_addr((slot)->buf)
  72 #define hisi_sas_sge_dif_addr_dma(slot) hisi_sas_sge_dif_addr((slot)->buf_dma)
  73
  74 #define HISI_SAS_MAX_SSP_RESP_SZ (sizeof(struct ssp_frame_hdr) + 1024)
  75 #define HISI_SAS_MAX_SMP_RESP_SZ 1028
  76 #define HISI_SAS_MAX_STP_RESP_SZ 28
  77
  78 #define HISI_SAS_SATA_PROTOCOL_NONDATA          0x1
  79 #define HISI_SAS_SATA_PROTOCOL_PIO                      0x2
  80 #define HISI_SAS_SATA_PROTOCOL_DMA                      0x4
  81 #define HISI_SAS_SATA_PROTOCOL_FPDMA            0x8
  82 #define HISI_SAS_SATA_PROTOCOL_ATAPI            0x10
  83
  84 #define HISI_SAS_DIF_PROT_MASK (SHOST_DIF_TYPE1_PROTECTION | \
  85                                 SHOST_DIF_TYPE2_PROTECTION | \
  86                                 SHOST_DIF_TYPE3_PROTECTION)
  87
  88 #define HISI_SAS_DIX_PROT_MASK (SHOST_DIX_TYPE1_PROTECTION | \
  89                                 SHOST_DIX_TYPE2_PROTECTION | \
  90                                 SHOST_DIX_TYPE3_PROTECTION)
  91
  92 #define HISI_SAS_PROT_MASK (HISI_SAS_DIF_PROT_MASK | HISI_SAS_DIX_PROT_MASK)
  93
  94 #define HISI_SAS_WAIT_PHYUP_TIMEOUT     (30 * HZ)
  95 #define HISI_SAS_CLEAR_ITCT_TIMEOUT     (20 * HZ)
  96
  97 struct hisi_hba;
  98
  99 enum {
 100         PORT_TYPE_SAS = (1U << 1),
 101         PORT_TYPE_SATA = (1U << 0),
 102 };
 103
 104 enum dev_status {
 105         HISI_SAS_DEV_INIT,
 106         HISI_SAS_DEV_NORMAL,
 107         HISI_SAS_DEV_NCQ_ERR,
 108 };
 109
 110 enum {
 111         HISI_SAS_INT_ABT_CMD = 0,
 112         HISI_SAS_INT_ABT_DEV = 1,
 113 };
 114
 115 enum hisi_sas_dev_type {
 116         HISI_SAS_DEV_TYPE_STP = 0,
 117         HISI_SAS_DEV_TYPE_SSP,
 118         HISI_SAS_DEV_TYPE_SATA,
 119 };
 120
 121 struct hisi_sas_hw_error {
 122         u32 irq_msk;
 123         u32 msk;
 124         int shift;
 125         const char *msg;
 126         int reg;
 127         const struct hisi_sas_hw_error *sub;
 128 };
 129
 130 struct hisi_sas_rst {
 131         struct hisi_hba *hisi_hba;
 132         struct completion *completion;
 133         struct work_struct work;
 134         bool done;
 135 };
 136
 137 #define HISI_SAS_RST_WORK_INIT(r, c) \
 138         {       .hisi_hba = hisi_hba, \
 139                 .completion = &c, \
 140                 .work = __WORK_INITIALIZER(r.work, \
 141                                 hisi_sas_sync_rst_work_handler), \
 142                 .done = false, \
 143                 }
 144
 145 #define HISI_SAS_DECLARE_RST_WORK_ON_STACK(r) \
 146         DECLARE_COMPLETION_ONSTACK(c); \
 147         struct hisi_sas_rst r = HISI_SAS_RST_WORK_INIT(r, c)
 148
 149 enum hisi_sas_bit_err_type {
 150         HISI_SAS_ERR_SINGLE_BIT_ECC = 0x0,
 151         HISI_SAS_ERR_MULTI_BIT_ECC = 0x1,
 152 };
 153
 154 enum hisi_sas_phy_event {
 155         HISI_PHYE_PHY_UP   = 0U,
 156         HISI_PHYE_LINK_RESET,
 157         HISI_PHYE_PHY_UP_PM,
 158         HISI_PHYES_NUM,
 159 };
 160
 161 struct hisi_sas_debugfs_fifo {
 162         u32 signal_sel;
 163         u32 dump_msk;
 164         u32 dump_mode;
 165         u32 trigger;
 166         u32 trigger_msk;
 167         u32 trigger_mode;
 168         u32 rd_data[HISI_SAS_FIFO_DATA_DW_SIZE];
 169 };
 170
 171 struct hisi_sas_phy {
 172         struct work_struct      works[HISI_PHYES_NUM];
 173         struct hisi_hba *hisi_hba;
 174         struct hisi_sas_port    *port;
 175         struct asd_sas_phy      sas_phy;
 176         struct sas_identify     identify;
 177         struct completion *reset_completion;
 178         struct timer_list timer;
 179         spinlock_t lock;
 180         u64             port_id; /* from hw */
 181         u64             frame_rcvd_size;
 182         u8              frame_rcvd[32];
 183         u8              phy_attached;
 184         u8              in_reset;
 185         u8              reserved[2];
 186         u32             phy_type;
 187         u32             code_violation_err_count;
 188         enum sas_linkrate       minimum_linkrate;
 189         enum sas_linkrate       maximum_linkrate;
 190         int enable;
 191         int wait_phyup_cnt;
 192         atomic_t down_cnt;
 193
 194         /* Trace FIFO */
 195         struct hisi_sas_debugfs_fifo fifo;
 196 };
 197
 198 struct hisi_sas_port {
 199         struct asd_sas_port     sas_port;
 200         u8      port_attached;
 201         u8      id; /* from hw */
 202 };
 203
 204 struct hisi_sas_cq {
 205         struct hisi_hba *hisi_hba;
 206         const struct cpumask *irq_mask;
 207         int     rd_point;
 208         int     id;
 209         int     irq_no;
 210         spinlock_t poll_lock;
 211 };
 212
 213 struct hisi_sas_dq {
 214         struct hisi_hba *hisi_hba;
 215         struct list_head list;
 216         spinlock_t lock;
 217         int     wr_point;
 218         int     id;
 219 };
 220
 221 struct hisi_sas_device {
 222         struct hisi_hba         *hisi_hba;
 223         struct domain_device    *sas_device;
 224         struct completion *completion;
 225         struct hisi_sas_dq      *dq;
 226         struct list_head        list;
 227         enum sas_device_type    dev_type;
 228         enum dev_status dev_status;
 229         int device_id;
 230         int sata_idx;
 231         spinlock_t lock; /* For protecting slots */
 232 };
 233
 234 struct hisi_sas_slot {
 235         struct list_head entry;
 236         struct list_head delivery;
 237         struct sas_task *task;
 238         struct hisi_sas_port    *port;
 239         u64     n_elem;
 240         u64     n_elem_dif;
 241         int     dlvry_queue;
 242         int     dlvry_queue_slot;
 243         int     cmplt_queue;
 244         int     cmplt_queue_slot;
 245         int     abort;
 246         int     ready;
 247         int     device_id;
 248         void    *cmd_hdr;
 249         dma_addr_t cmd_hdr_dma;
 250         struct timer_list internal_abort_timer;
 251         bool is_internal;
 252         struct sas_tmf_task *tmf;
 253         /* Do not reorder/change members after here */
 254         void    *buf;
 255         dma_addr_t buf_dma;
 256         u16     idx;
 257 };
 258
 259 struct hisi_sas_iost_itct_cache {
 260         u32 data[HISI_SAS_IOST_ITCT_CACHE_DW_SZ];
 261 };
 262
 263 enum hisi_sas_debugfs_reg_array_member {
 264         DEBUGFS_GLOBAL = 0,
 265         DEBUGFS_AXI,
 266         DEBUGFS_RAS,
 267         DEBUGFS_REGS_NUM
 268 };
 269
 270 enum hisi_sas_debugfs_cache_type {
 271         HISI_SAS_ITCT_CACHE,
 272         HISI_SAS_IOST_CACHE,
 273 };
 274
 275 enum hisi_sas_debugfs_bist_ffe_cfg {
 276         FFE_SAS_1_5_GBPS,
 277         FFE_SAS_3_0_GBPS,
 278         FFE_SAS_6_0_GBPS,
 279         FFE_SAS_12_0_GBPS,
 280         FFE_RESV,
 281         FFE_SATA_1_5_GBPS,
 282         FFE_SATA_3_0_GBPS,
 283         FFE_SATA_6_0_GBPS,
 284         FFE_CFG_MAX
 285 };
 286
 287 enum hisi_sas_debugfs_bist_fixed_code {
 288         FIXED_CODE,
 289         FIXED_CODE_1,
 290         FIXED_CODE_MAX
 291 };
 292
 293 enum {
 294         HISI_SAS_BIST_CODE_MODE_PRBS7,
 295         HISI_SAS_BIST_CODE_MODE_PRBS23,
 296         HISI_SAS_BIST_CODE_MODE_PRBS31,
 297         HISI_SAS_BIST_CODE_MODE_JTPAT,
 298         HISI_SAS_BIST_CODE_MODE_CJTPAT,
 299         HISI_SAS_BIST_CODE_MODE_SCRAMBED_0,
 300         HISI_SAS_BIST_CODE_MODE_TRAIN,
 301         HISI_SAS_BIST_CODE_MODE_TRAIN_DONE,
 302         HISI_SAS_BIST_CODE_MODE_HFTP,
 303         HISI_SAS_BIST_CODE_MODE_MFTP,
 304         HISI_SAS_BIST_CODE_MODE_LFTP,
 305         HISI_SAS_BIST_CODE_MODE_FIXED_DATA,
 306 };
 307
 308 struct hisi_sas_hw {
 309         int (*hw_init)(struct hisi_hba *hisi_hba);
 310         int (*fw_info_check)(struct hisi_hba *hisi_hba);
 311         int (*interrupt_preinit)(struct hisi_hba *hisi_hba);
 312         void (*setup_itct)(struct hisi_hba *hisi_hba,
 313                            struct hisi_sas_device *device);
 314         int (*slot_index_alloc)(struct hisi_hba *hisi_hba,
 315                                 struct domain_device *device);
 316         struct hisi_sas_device *(*alloc_dev)(struct domain_device *device);
 317         void (*sl_notify_ssp)(struct hisi_hba *hisi_hba, int phy_no);
 318         void (*start_delivery)(struct hisi_sas_dq *dq);
 319         void (*prep_ssp)(struct hisi_hba *hisi_hba,
 320                         struct hisi_sas_slot *slot);
 321         void (*prep_smp)(struct hisi_hba *hisi_hba,
 322                         struct hisi_sas_slot *slot);
 323         void (*prep_stp)(struct hisi_hba *hisi_hba,
 324                         struct hisi_sas_slot *slot);
 325         void (*prep_abort)(struct hisi_hba *hisi_hba,
 326                           struct hisi_sas_slot *slot);
 327         void (*phys_init)(struct hisi_hba *hisi_hba);
 328         void (*phy_start)(struct hisi_hba *hisi_hba, int phy_no);
 329         void (*phy_disable)(struct hisi_hba *hisi_hba, int phy_no);
 330         void (*phy_hard_reset)(struct hisi_hba *hisi_hba, int phy_no);
 331         void (*get_events)(struct hisi_hba *hisi_hba, int phy_no);
 332         void (*phy_set_linkrate)(struct hisi_hba *hisi_hba, int phy_no,
 333                         struct sas_phy_linkrates *linkrates);
 334         enum sas_linkrate (*phy_get_max_linkrate)(void);
 335         int (*clear_itct)(struct hisi_hba *hisi_hba,
 336                           struct hisi_sas_device *dev);
 337         void (*free_device)(struct hisi_sas_device *sas_dev);
 338         int (*get_wideport_bitmap)(struct hisi_hba *hisi_hba, int port_id);
 339         void (*dereg_device)(struct hisi_hba *hisi_hba,
 340                                 struct domain_device *device);
 341         int (*soft_reset)(struct hisi_hba *hisi_hba);
 342         u32 (*get_phys_state)(struct hisi_hba *hisi_hba);
 343         int (*write_gpio)(struct hisi_hba *hisi_hba, u8 reg_type,
 344                                 u8 reg_index, u8 reg_count, u8 *write_data);
 345         void (*wait_cmds_complete_timeout)(struct hisi_hba *hisi_hba,
 346                                            int delay_ms, int timeout_ms);
 347         int (*debugfs_snapshot_regs)(struct hisi_hba *hisi_hba);
 348         int complete_hdr_size;
 349         const struct scsi_host_template *sht;
 350 };
 351
 352 #define HISI_SAS_MAX_DEBUGFS_DUMP (50)
 353
 354 struct hisi_sas_debugfs_cq {
 355         struct hisi_sas_cq *cq;
 356         void *complete_hdr;
 357 };
 358
 359 struct hisi_sas_debugfs_dq {
 360         struct hisi_sas_dq *dq;
 361         struct hisi_sas_cmd_hdr *hdr;
 362 };
 363
 364 struct hisi_sas_debugfs_regs {
 365         struct hisi_hba *hisi_hba;
 366         u32 *data;
 367 };
 368
 369 struct hisi_sas_debugfs_port {
 370         struct hisi_sas_phy *phy;
 371         u32 *data;
 372 };
 373
 374 struct hisi_sas_debugfs_iost {
 375         struct hisi_sas_iost *iost;
 376 };
 377
 378 struct hisi_sas_debugfs_itct {
 379         struct hisi_sas_itct *itct;
 380 };
 381
 382 struct hisi_sas_debugfs_iost_cache {
 383         struct hisi_sas_iost_itct_cache *cache;
 384 };
 385
 386 struct hisi_sas_debugfs_itct_cache {
 387         struct hisi_sas_iost_itct_cache *cache;
 388 };
 389
 390 struct hisi_hba {
 391         /* This must be the first element, used by SHOST_TO_SAS_HA */
 392         struct sas_ha_struct *p;
 393
 394         struct platform_device *platform_dev;
 395         struct pci_dev *pci_dev;
 396         struct device *dev;
 397
 398         int prot_mask;
 399
 400         void __iomem *regs;
 401         void __iomem *sgpio_regs;
 402         struct regmap *ctrl;
 403         u32 ctrl_reset_reg;
 404         u32 ctrl_reset_sts_reg;
 405         u32 ctrl_clock_ena_reg;
 406         u32 refclk_frequency_mhz;
 407         u8 sas_addr[SAS_ADDR_SIZE];
 408
 409         int *irq_map; /* v2 hw */
 410
 411         int n_phy;
 412         spinlock_t lock;
 413         struct semaphore sem;
 414
 415         struct timer_list timer;
 416         struct workqueue_struct *wq;
 417
 418         int slot_index_count;
 419         int last_slot_index;
 420         int last_dev_id;
 421         unsigned long *slot_index_tags;
 422         unsigned long reject_stp_links_msk;
 423
 424         /* SCSI/SAS glue */
 425         struct sas_ha_struct sha;
 426         struct Scsi_Host *shost;
 427
 428         struct hisi_sas_cq cq[HISI_SAS_MAX_QUEUES];
 429         struct hisi_sas_dq dq[HISI_SAS_MAX_QUEUES];
 430         struct hisi_sas_phy phy[HISI_SAS_MAX_PHYS];
 431         struct hisi_sas_port port[HISI_SAS_MAX_PHYS];
 432
 433         int     queue_count;
 434
 435         struct hisi_sas_device  devices[HISI_SAS_MAX_DEVICES];
 436         struct hisi_sas_cmd_hdr *cmd_hdr[HISI_SAS_MAX_QUEUES];
 437         dma_addr_t cmd_hdr_dma[HISI_SAS_MAX_QUEUES];
 438         void *complete_hdr[HISI_SAS_MAX_QUEUES];
 439         dma_addr_t complete_hdr_dma[HISI_SAS_MAX_QUEUES];
 440         struct hisi_sas_initial_fis *initial_fis;
 441         dma_addr_t initial_fis_dma;
 442         struct hisi_sas_itct *itct;
 443         dma_addr_t itct_dma;
 444         struct hisi_sas_iost *iost;
 445         dma_addr_t iost_dma;
 446         struct hisi_sas_breakpoint *breakpoint;
 447         dma_addr_t breakpoint_dma;
 448         struct hisi_sas_breakpoint *sata_breakpoint;
 449         dma_addr_t sata_breakpoint_dma;
 450         struct hisi_sas_slot    *slot_info;
 451         unsigned long flags;
 452         const struct hisi_sas_hw *hw;   /* Low level hw interface */
 453         unsigned long sata_dev_bitmap[BITS_TO_LONGS(HISI_SAS_MAX_DEVICES)];
 454         struct work_struct rst_work;
 455         u32 phy_state;
 456         u32 intr_coal_ticks;    /* Time of interrupt coalesce in us */
 457         u32 intr_coal_count;    /* Interrupt count to coalesce */
 458
 459         int cq_nvecs;
 460
 461         /* bist */
 462         enum sas_linkrate debugfs_bist_linkrate;
 463         int debugfs_bist_code_mode;
 464         int debugfs_bist_phy_no;
 465         int debugfs_bist_mode;
 466         u32 debugfs_bist_cnt;
 467         int debugfs_bist_enable;
 468         u32 debugfs_bist_ffe[HISI_SAS_MAX_PHYS][FFE_CFG_MAX];
 469         u32 debugfs_bist_fixed_code[FIXED_CODE_MAX];
 470
 471         /* debugfs memories */
 472         /* Put Global AXI and RAS Register into register array */
 473         struct hisi_sas_debugfs_regs debugfs_regs[HISI_SAS_MAX_DEBUGFS_DUMP][DEBUGFS_REGS_NUM];
 474         struct hisi_sas_debugfs_port debugfs_port_reg[HISI_SAS_MAX_DEBUGFS_DUMP][HISI_SAS_MAX_PHYS];
 475         struct hisi_sas_debugfs_cq debugfs_cq[HISI_SAS_MAX_DEBUGFS_DUMP][HISI_SAS_MAX_QUEUES];
 476         struct hisi_sas_debugfs_dq debugfs_dq[HISI_SAS_MAX_DEBUGFS_DUMP][HISI_SAS_MAX_QUEUES];
 477         struct hisi_sas_debugfs_iost debugfs_iost[HISI_SAS_MAX_DEBUGFS_DUMP];
 478         struct hisi_sas_debugfs_itct debugfs_itct[HISI_SAS_MAX_DEBUGFS_DUMP];
 479         struct hisi_sas_debugfs_iost_cache debugfs_iost_cache[HISI_SAS_MAX_DEBUGFS_DUMP];
 480         struct hisi_sas_debugfs_itct_cache debugfs_itct_cache[HISI_SAS_MAX_DEBUGFS_DUMP];
 481
 482         u64 debugfs_timestamp[HISI_SAS_MAX_DEBUGFS_DUMP];
 483         int debugfs_dump_index;
 484         struct dentry *debugfs_dir;
 485         struct dentry *debugfs_dump_dentry;
 486         struct dentry *debugfs_bist_dentry;
 487         struct dentry *debugfs_fifo_dentry;
 488
 489         int iopoll_q_cnt;
 490 };
 491
 492 /* Generic HW DMA host memory structures */
 493 /* Delivery queue header */
 494 struct hisi_sas_cmd_hdr {
 495         /* dw0 */
 496         __le32 dw0;
 497
 498         /* dw1 */
 499         __le32 dw1;
 500
 501         /* dw2 */
 502         __le32 dw2;
 503
 504         /* dw3 */
 505         __le32 transfer_tags;
 506
 507         /* dw4 */
 508         __le32 data_transfer_len;
 509
 510         /* dw5 */
 511         __le32 first_burst_num;
 512
 513         /* dw6 */
 514         __le32 sg_len;
 515
 516         /* dw7 */
 517         __le32 dw7;
 518
 519         /* dw8-9 */
 520         __le64 cmd_table_addr;
 521
 522         /* dw10-11 */
 523         __le64 sts_buffer_addr;
 524
 525         /* dw12-13 */
 526         __le64 prd_table_addr;
 527
 528         /* dw14-15 */
 529         __le64 dif_prd_table_addr;
 530 };
 531
 532 struct hisi_sas_itct {
 533         __le64 qw0;
 534         __le64 sas_addr;
 535         __le64 qw2;
 536         __le64 qw3;
 537         __le64 qw4_15[12];
 538 };
 539
 540 struct hisi_sas_iost {
 541         __le64 qw0;
 542         __le64 qw1;
 543         __le64 qw2;
 544         __le64 qw3;
 545 };
 546
 547 struct hisi_sas_err_record {
 548         u32     data[4];
 549 };
 550
 551 struct hisi_sas_initial_fis {
 552         struct hisi_sas_err_record err_record;
 553         struct dev_to_host_fis fis;
 554         u32 rsvd[3];
 555 };
 556
 557 struct hisi_sas_breakpoint {
 558         u8      data[128];
 559 };
 560
 561 struct hisi_sas_sata_breakpoint {
 562         struct hisi_sas_breakpoint tag[32];
 563 };
 564
 565 struct hisi_sas_sge {
 566         __le64 addr;
 567         __le32 page_ctrl_0;
 568         __le32 page_ctrl_1;
 569         __le32 data_len;
 570         __le32 data_off;
 571 };
 572
 573 struct hisi_sas_command_table_smp {
 574         u8 bytes[44];
 575 };
 576
 577 struct hisi_sas_command_table_stp {
 578         struct  host_to_dev_fis command_fis;
 579         u8      dummy[12];
 580         u8      atapi_cdb[ATAPI_CDB_LEN];
 581 };
 582
 583 #define HISI_SAS_SGE_PAGE_CNT (124)
 584 struct hisi_sas_sge_page {
 585         struct hisi_sas_sge sge[HISI_SAS_SGE_PAGE_CNT];
 586 }  __aligned(16);
 587
 588 #define HISI_SAS_SGE_DIF_PAGE_CNT   HISI_SAS_SGE_PAGE_CNT
 589 struct hisi_sas_sge_dif_page {
 590         struct hisi_sas_sge sge[HISI_SAS_SGE_DIF_PAGE_CNT];
 591 }  __aligned(16);
 592
 593 struct hisi_sas_command_table_ssp {
 594         struct ssp_frame_hdr hdr;
 595         union {
 596                 struct {
 597                         struct ssp_command_iu task;
 598                         u32 prot[7];
 599                 };
 600                 struct ssp_tmf_iu ssp_task;
 601                 struct xfer_rdy_iu xfer_rdy;
 602                 struct ssp_response_iu ssp_res;
 603         } u;
 604 };
 605
 606 union hisi_sas_command_table {
 607         struct hisi_sas_command_table_ssp ssp;
 608         struct hisi_sas_command_table_smp smp;
 609         struct hisi_sas_command_table_stp stp;
 610 }  __aligned(16);
 611
 612 struct hisi_sas_status_buffer {
 613         struct hisi_sas_err_record err;
 614         u8      iu[1024];
 615 }  __aligned(16);
 616
 617 struct hisi_sas_slot_buf_table {
 618         struct hisi_sas_status_buffer status_buffer;
 619         union hisi_sas_command_table command_header;
 620         struct hisi_sas_sge_page sge_page;
 621 };
 622
 623 struct hisi_sas_slot_dif_buf_table {
 624         struct hisi_sas_slot_buf_table slot_buf;
 625         struct hisi_sas_sge_dif_page sge_dif_page;
 626 };
 627
 628 extern struct scsi_transport_template *hisi_sas_stt;
 629
 630 extern bool hisi_sas_debugfs_enable;
 631 extern u32 hisi_sas_debugfs_dump_count;
 632 extern struct dentry *hisi_sas_debugfs_dir;
 633
 634 extern void hisi_sas_stop_phys(struct hisi_hba *hisi_hba);
 635 extern int hisi_sas_alloc(struct hisi_hba *hisi_hba);
 636 extern void hisi_sas_free(struct hisi_hba *hisi_hba);
 637 extern u8 hisi_sas_get_ata_protocol(struct host_to_dev_fis *fis,
 638                                 int direction);
 639 extern struct hisi_sas_port *to_hisi_sas_port(struct asd_sas_port *sas_port);
 640 extern void hisi_sas_sata_done(struct sas_task *task,
 641                             struct hisi_sas_slot *slot);
 642 extern int hisi_sas_get_fw_info(struct hisi_hba *hisi_hba);
 643 extern int hisi_sas_probe(struct platform_device *pdev,
 644                           const struct hisi_sas_hw *ops);
 645 extern void hisi_sas_remove(struct platform_device *pdev);
 646
 647 int hisi_sas_device_configure(struct scsi_device *sdev,
 648                 struct queue_limits *lim);
 649 extern int hisi_sas_slave_alloc(struct scsi_device *sdev);
 650 extern int hisi_sas_scan_finished(struct Scsi_Host *shost, unsigned long time);
 651 extern void hisi_sas_scan_start(struct Scsi_Host *shost);
 652 extern int hisi_sas_host_reset(struct Scsi_Host *shost, int reset_type);
 653 extern void hisi_sas_phy_enable(struct hisi_hba *hisi_hba, int phy_no,
 654                                 int enable);
 655 extern void hisi_sas_phy_down(struct hisi_hba *hisi_hba, int phy_no, int rdy,
 656                               gfp_t gfp_flags);
 657 extern void hisi_sas_phy_bcast(struct hisi_sas_phy *phy);
 658 extern void hisi_sas_slot_task_free(struct hisi_hba *hisi_hba,
 659                                     struct sas_task *task,
 660                                     struct hisi_sas_slot *slot,
 661                                     bool need_lock);
 662 extern void hisi_sas_init_mem(struct hisi_hba *hisi_hba);
 663 extern void hisi_sas_rst_work_handler(struct work_struct *work);
 664 extern void hisi_sas_sync_rst_work_handler(struct work_struct *work);
 665 extern void hisi_sas_phy_oob_ready(struct hisi_hba *hisi_hba, int phy_no);
 666 extern bool hisi_sas_notify_phy_event(struct hisi_sas_phy *phy,
 667                                 enum hisi_sas_phy_event event);
 668 extern void hisi_sas_release_tasks(struct hisi_hba *hisi_hba);
 669 extern u8 hisi_sas_get_prog_phy_linkrate_mask(enum sas_linkrate max);
 670 extern void hisi_sas_sync_cqs(struct hisi_hba *hisi_hba);
 671 extern void hisi_sas_sync_poll_cqs(struct hisi_hba *hisi_hba);
 672 extern void hisi_sas_controller_reset_prepare(struct hisi_hba *hisi_hba);
 673 extern void hisi_sas_controller_reset_done(struct hisi_hba *hisi_hba);
 674 #endif