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