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