drivers/scsi/hisi_sas/hisi_sas.h

   1 /*
   2  * Copyright (c) 2015 Linaro Ltd.
   3  * Copyright (c) 2015 Hisilicon Limited.
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  */
  11
  12 #ifndef _HISI_SAS_H_
  13 #define _HISI_SAS_H_
  14
  15 #include <linux/acpi.h>
  16 #include <linux/clk.h>
  17 #include <linux/debugfs.h>
  18 #include <linux/dmapool.h>
  19 #include <linux/iopoll.h>
  20 #include <linux/lcm.h>
  21 #include <linux/libata.h>
  22 #include <linux/mfd/syscon.h>
  23 #include <linux/module.h>
  24 #include <linux/of_address.h>
  25 #include <linux/pci.h>
  26 #include <linux/platform_device.h>
  27 #include <linux/property.h>
  28 #include <linux/regmap.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_RESET_BIT      0
  38 #define HISI_SAS_REJECT_CMD_BIT 1
  39 #define HISI_SAS_RESERVED_IPTT_CNT  96
  40
  41 #define HISI_SAS_STATUS_BUF_SZ (sizeof(struct hisi_sas_status_buffer))
  42 #define HISI_SAS_COMMAND_TABLE_SZ (sizeof(union hisi_sas_command_table))
  43
  44 #define hisi_sas_status_buf_addr(buf) \
  45         ((buf) + offsetof(struct hisi_sas_slot_buf_table, status_buffer))
  46 #define hisi_sas_status_buf_addr_mem(slot) hisi_sas_status_buf_addr((slot)->buf)
  47 #define hisi_sas_status_buf_addr_dma(slot) \
  48         hisi_sas_status_buf_addr((slot)->buf_dma)
  49
  50 #define hisi_sas_cmd_hdr_addr(buf) \
  51         ((buf) + offsetof(struct hisi_sas_slot_buf_table, command_header))
  52 #define hisi_sas_cmd_hdr_addr_mem(slot) hisi_sas_cmd_hdr_addr((slot)->buf)
  53 #define hisi_sas_cmd_hdr_addr_dma(slot) hisi_sas_cmd_hdr_addr((slot)->buf_dma)
  54
  55 #define hisi_sas_sge_addr(buf) \
  56         ((buf) + offsetof(struct hisi_sas_slot_buf_table, sge_page))
  57 #define hisi_sas_sge_addr_mem(slot) hisi_sas_sge_addr((slot)->buf)
  58 #define hisi_sas_sge_addr_dma(slot) hisi_sas_sge_addr((slot)->buf_dma)
  59
  60 #define hisi_sas_sge_dif_addr(buf) \
  61         ((buf) + offsetof(struct hisi_sas_slot_dif_buf_table, sge_dif_page))
  62 #define hisi_sas_sge_dif_addr_mem(slot) hisi_sas_sge_dif_addr((slot)->buf)
  63 #define hisi_sas_sge_dif_addr_dma(slot) hisi_sas_sge_dif_addr((slot)->buf_dma)
  64
  65 #define HISI_SAS_MAX_SSP_RESP_SZ (sizeof(struct ssp_frame_hdr) + 1024)
  66 #define HISI_SAS_MAX_SMP_RESP_SZ 1028
  67 #define HISI_SAS_MAX_STP_RESP_SZ 28
  68
  69 #define DEV_IS_EXPANDER(type) \
  70         ((type == SAS_EDGE_EXPANDER_DEVICE) || \
  71         (type == SAS_FANOUT_EXPANDER_DEVICE))
  72
  73 #define HISI_SAS_SATA_PROTOCOL_NONDATA          0x1
  74 #define HISI_SAS_SATA_PROTOCOL_PIO                      0x2
  75 #define HISI_SAS_SATA_PROTOCOL_DMA                      0x4
  76 #define HISI_SAS_SATA_PROTOCOL_FPDMA            0x8
  77 #define HISI_SAS_SATA_PROTOCOL_ATAPI            0x10
  78
  79 #define HISI_SAS_DIF_PROT_MASK (SHOST_DIF_TYPE1_PROTECTION | \
  80                                 SHOST_DIF_TYPE2_PROTECTION | \
  81                                 SHOST_DIF_TYPE3_PROTECTION)
  82
  83 #define HISI_SAS_DIX_PROT_MASK (SHOST_DIX_TYPE1_PROTECTION | \
  84                                 SHOST_DIX_TYPE2_PROTECTION | \
  85                                 SHOST_DIX_TYPE3_PROTECTION)
  86
  87 #define HISI_SAS_PROT_MASK (HISI_SAS_DIF_PROT_MASK | HISI_SAS_DIX_PROT_MASK)
  88
  89 #define HISI_SAS_WAIT_PHYUP_TIMEOUT 20
  90
  91 struct hisi_hba;
  92
  93 enum {
  94         PORT_TYPE_SAS = (1U << 1),
  95         PORT_TYPE_SATA = (1U << 0),
  96 };
  97
  98 enum dev_status {
  99         HISI_SAS_DEV_INIT,
 100         HISI_SAS_DEV_NORMAL,
 101 };
 102
 103 enum {
 104         HISI_SAS_INT_ABT_CMD = 0,
 105         HISI_SAS_INT_ABT_DEV = 1,
 106 };
 107
 108 enum hisi_sas_dev_type {
 109         HISI_SAS_DEV_TYPE_STP = 0,
 110         HISI_SAS_DEV_TYPE_SSP,
 111         HISI_SAS_DEV_TYPE_SATA,
 112 };
 113
 114 struct hisi_sas_hw_error {
 115         u32 irq_msk;
 116         u32 msk;
 117         int shift;
 118         const char *msg;
 119         int reg;
 120         const struct hisi_sas_hw_error *sub;
 121 };
 122
 123 struct hisi_sas_rst {
 124         struct hisi_hba *hisi_hba;
 125         struct completion *completion;
 126         struct work_struct work;
 127         bool done;
 128 };
 129
 130 #define HISI_SAS_RST_WORK_INIT(r, c) \
 131         {       .hisi_hba = hisi_hba, \
 132                 .completion = &c, \
 133                 .work = __WORK_INITIALIZER(r.work, \
 134                                 hisi_sas_sync_rst_work_handler), \
 135                 .done = false, \
 136                 }
 137
 138 #define HISI_SAS_DECLARE_RST_WORK_ON_STACK(r) \
 139         DECLARE_COMPLETION_ONSTACK(c); \
 140         DECLARE_WORK(w, hisi_sas_sync_rst_work_handler); \
 141         struct hisi_sas_rst r = HISI_SAS_RST_WORK_INIT(r, c)
 142
 143 enum hisi_sas_bit_err_type {
 144         HISI_SAS_ERR_SINGLE_BIT_ECC = 0x0,
 145         HISI_SAS_ERR_MULTI_BIT_ECC = 0x1,
 146 };
 147
 148 enum hisi_sas_phy_event {
 149         HISI_PHYE_PHY_UP   = 0U,
 150         HISI_PHYE_LINK_RESET,
 151         HISI_PHYES_NUM,
 152 };
 153
 154 struct hisi_sas_phy {
 155         struct work_struct      works[HISI_PHYES_NUM];
 156         struct hisi_hba *hisi_hba;
 157         struct hisi_sas_port    *port;
 158         struct asd_sas_phy      sas_phy;
 159         struct sas_identify     identify;
 160         struct completion *reset_completion;
 161         struct timer_list timer;
 162         spinlock_t lock;
 163         u64             port_id; /* from hw */
 164         u64             frame_rcvd_size;
 165         u8              frame_rcvd[32];
 166         u8              phy_attached;
 167         u8              in_reset;
 168         u8              reserved[2];
 169         u32             phy_type;
 170         u32             code_violation_err_count;
 171         enum sas_linkrate       minimum_linkrate;
 172         enum sas_linkrate       maximum_linkrate;
 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 *pci_irq_mask;
 184         struct tasklet_struct tasklet;
 185         int     rd_point;
 186         int     id;
 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_hw {
 261         int (*hw_init)(struct hisi_hba *hisi_hba);
 262         void (*setup_itct)(struct hisi_hba *hisi_hba,
 263                            struct hisi_sas_device *device);
 264         int (*slot_index_alloc)(struct hisi_hba *hisi_hba,
 265                                 struct domain_device *device);
 266         struct hisi_sas_device *(*alloc_dev)(struct domain_device *device);
 267         void (*sl_notify_ssp)(struct hisi_hba *hisi_hba, int phy_no);
 268         int (*get_free_slot)(struct hisi_hba *hisi_hba, struct hisi_sas_dq *dq);
 269         void (*start_delivery)(struct hisi_sas_dq *dq);
 270         void (*prep_ssp)(struct hisi_hba *hisi_hba,
 271                         struct hisi_sas_slot *slot);
 272         void (*prep_smp)(struct hisi_hba *hisi_hba,
 273                         struct hisi_sas_slot *slot);
 274         void (*prep_stp)(struct hisi_hba *hisi_hba,
 275                         struct hisi_sas_slot *slot);
 276         void (*prep_abort)(struct hisi_hba *hisi_hba,
 277                           struct hisi_sas_slot *slot,
 278                           int device_id, int abort_flag, int tag_to_abort);
 279         int (*slot_complete)(struct hisi_hba *hisi_hba,
 280                              struct hisi_sas_slot *slot);
 281         void (*phys_init)(struct hisi_hba *hisi_hba);
 282         void (*phy_start)(struct hisi_hba *hisi_hba, int phy_no);
 283         void (*phy_disable)(struct hisi_hba *hisi_hba, int phy_no);
 284         void (*phy_hard_reset)(struct hisi_hba *hisi_hba, int phy_no);
 285         void (*get_events)(struct hisi_hba *hisi_hba, int phy_no);
 286         void (*phy_set_linkrate)(struct hisi_hba *hisi_hba, int phy_no,
 287                         struct sas_phy_linkrates *linkrates);
 288         enum sas_linkrate (*phy_get_max_linkrate)(void);
 289         void (*clear_itct)(struct hisi_hba *hisi_hba,
 290                             struct hisi_sas_device *dev);
 291         void (*free_device)(struct hisi_sas_device *sas_dev);
 292         int (*get_wideport_bitmap)(struct hisi_hba *hisi_hba, int port_id);
 293         void (*dereg_device)(struct hisi_hba *hisi_hba,
 294                                 struct domain_device *device);
 295         int (*soft_reset)(struct hisi_hba *hisi_hba);
 296         u32 (*get_phys_state)(struct hisi_hba *hisi_hba);
 297         int (*write_gpio)(struct hisi_hba *hisi_hba, u8 reg_type,
 298                                 u8 reg_index, u8 reg_count, u8 *write_data);
 299         int (*wait_cmds_complete_timeout)(struct hisi_hba *hisi_hba,
 300                                           int delay_ms, int timeout_ms);
 301         void (*snapshot_prepare)(struct hisi_hba *hisi_hba);
 302         void (*snapshot_restore)(struct hisi_hba *hisi_hba);
 303         int max_command_entries;
 304         int complete_hdr_size;
 305         struct scsi_host_template *sht;
 306
 307         const struct hisi_sas_debugfs_reg *debugfs_reg_global;
 308         const struct hisi_sas_debugfs_reg *debugfs_reg_port;
 309 };
 310
 311 struct hisi_hba {
 312         /* This must be the first element, used by SHOST_TO_SAS_HA */
 313         struct sas_ha_struct *p;
 314
 315         struct platform_device *platform_dev;
 316         struct pci_dev *pci_dev;
 317         struct device *dev;
 318
 319         int prot_mask;
 320
 321         void __iomem *regs;
 322         void __iomem *sgpio_regs;
 323         struct regmap *ctrl;
 324         u32 ctrl_reset_reg;
 325         u32 ctrl_reset_sts_reg;
 326         u32 ctrl_clock_ena_reg;
 327         u32 refclk_frequency_mhz;
 328         u8 sas_addr[SAS_ADDR_SIZE];
 329
 330         int n_phy;
 331         spinlock_t lock;
 332         struct semaphore sem;
 333
 334         struct timer_list timer;
 335         struct workqueue_struct *wq;
 336
 337         int slot_index_count;
 338         int last_slot_index;
 339         int last_dev_id;
 340         unsigned long *slot_index_tags;
 341         unsigned long reject_stp_links_msk;
 342
 343         /* SCSI/SAS glue */
 344         struct sas_ha_struct sha;
 345         struct Scsi_Host *shost;
 346
 347         struct hisi_sas_cq cq[HISI_SAS_MAX_QUEUES];
 348         struct hisi_sas_dq dq[HISI_SAS_MAX_QUEUES];
 349         struct hisi_sas_phy phy[HISI_SAS_MAX_PHYS];
 350         struct hisi_sas_port port[HISI_SAS_MAX_PHYS];
 351
 352         int     queue_count;
 353
 354         struct hisi_sas_device  devices[HISI_SAS_MAX_DEVICES];
 355         struct hisi_sas_cmd_hdr *cmd_hdr[HISI_SAS_MAX_QUEUES];
 356         dma_addr_t cmd_hdr_dma[HISI_SAS_MAX_QUEUES];
 357         void *complete_hdr[HISI_SAS_MAX_QUEUES];
 358         dma_addr_t complete_hdr_dma[HISI_SAS_MAX_QUEUES];
 359         struct hisi_sas_initial_fis *initial_fis;
 360         dma_addr_t initial_fis_dma;
 361         struct hisi_sas_itct *itct;
 362         dma_addr_t itct_dma;
 363         struct hisi_sas_iost *iost;
 364         dma_addr_t iost_dma;
 365         struct hisi_sas_breakpoint *breakpoint;
 366         dma_addr_t breakpoint_dma;
 367         struct hisi_sas_breakpoint *sata_breakpoint;
 368         dma_addr_t sata_breakpoint_dma;
 369         struct hisi_sas_slot    *slot_info;
 370         unsigned long flags;
 371         const struct hisi_sas_hw *hw;   /* Low level hw interface */
 372         unsigned long sata_dev_bitmap[BITS_TO_LONGS(HISI_SAS_MAX_DEVICES)];
 373         struct work_struct rst_work;
 374         struct work_struct debugfs_work;
 375         u32 phy_state;
 376         u32 intr_coal_ticks;    /* Time of interrupt coalesce in us */
 377         u32 intr_coal_count;    /* Interrupt count to coalesce */
 378
 379         int cq_nvecs;
 380         unsigned int *reply_map;
 381
 382         /* debugfs memories */
 383         u32 *debugfs_global_reg;
 384         u32 *debugfs_port_reg[HISI_SAS_MAX_PHYS];
 385         void *debugfs_complete_hdr[HISI_SAS_MAX_QUEUES];
 386         struct hisi_sas_cmd_hdr *debugfs_cmd_hdr[HISI_SAS_MAX_QUEUES];
 387         struct hisi_sas_iost *debugfs_iost;
 388         struct hisi_sas_itct *debugfs_itct;
 389
 390         struct dentry *debugfs_dir;
 391         struct dentry *debugfs_dump_dentry;
 392         bool debugfs_snapshot;
 393 };
 394
 395 /* Generic HW DMA host memory structures */
 396 /* Delivery queue header */
 397 struct hisi_sas_cmd_hdr {
 398         /* dw0 */
 399         __le32 dw0;
 400
 401         /* dw1 */
 402         __le32 dw1;
 403
 404         /* dw2 */
 405         __le32 dw2;
 406
 407         /* dw3 */
 408         __le32 transfer_tags;
 409
 410         /* dw4 */
 411         __le32 data_transfer_len;
 412
 413         /* dw5 */
 414         __le32 first_burst_num;
 415
 416         /* dw6 */
 417         __le32 sg_len;
 418
 419         /* dw7 */
 420         __le32 dw7;
 421
 422         /* dw8-9 */
 423         __le64 cmd_table_addr;
 424
 425         /* dw10-11 */
 426         __le64 sts_buffer_addr;
 427
 428         /* dw12-13 */
 429         __le64 prd_table_addr;
 430
 431         /* dw14-15 */
 432         __le64 dif_prd_table_addr;
 433 };
 434
 435 struct hisi_sas_itct {
 436         __le64 qw0;
 437         __le64 sas_addr;
 438         __le64 qw2;
 439         __le64 qw3;
 440         __le64 qw4_15[12];
 441 };
 442
 443 struct hisi_sas_iost {
 444         __le64 qw0;
 445         __le64 qw1;
 446         __le64 qw2;
 447         __le64 qw3;
 448 };
 449
 450 struct hisi_sas_err_record {
 451         u32     data[4];
 452 };
 453
 454 struct hisi_sas_initial_fis {
 455         struct hisi_sas_err_record err_record;
 456         struct dev_to_host_fis fis;
 457         u32 rsvd[3];
 458 };
 459
 460 struct hisi_sas_breakpoint {
 461         u8      data[128];
 462 };
 463
 464 struct hisi_sas_sata_breakpoint {
 465         struct hisi_sas_breakpoint tag[32];
 466 };
 467
 468 struct hisi_sas_sge {
 469         __le64 addr;
 470         __le32 page_ctrl_0;
 471         __le32 page_ctrl_1;
 472         __le32 data_len;
 473         __le32 data_off;
 474 };
 475
 476 struct hisi_sas_command_table_smp {
 477         u8 bytes[44];
 478 };
 479
 480 struct hisi_sas_command_table_stp {
 481         struct  host_to_dev_fis command_fis;
 482         u8      dummy[12];
 483         u8      atapi_cdb[ATAPI_CDB_LEN];
 484 };
 485
 486 #define HISI_SAS_SGE_PAGE_CNT SG_CHUNK_SIZE
 487 struct hisi_sas_sge_page {
 488         struct hisi_sas_sge sge[HISI_SAS_SGE_PAGE_CNT];
 489 }  __aligned(16);
 490
 491 #define HISI_SAS_SGE_DIF_PAGE_CNT   SG_CHUNK_SIZE
 492 struct hisi_sas_sge_dif_page {
 493         struct hisi_sas_sge sge[HISI_SAS_SGE_DIF_PAGE_CNT];
 494 }  __aligned(16);
 495
 496 struct hisi_sas_command_table_ssp {
 497         struct ssp_frame_hdr hdr;
 498         union {
 499                 struct {
 500                         struct ssp_command_iu task;
 501                         u32 prot[7];
 502                 };
 503                 struct ssp_tmf_iu ssp_task;
 504                 struct xfer_rdy_iu xfer_rdy;
 505                 struct ssp_response_iu ssp_res;
 506         } u;
 507 };
 508
 509 union hisi_sas_command_table {
 510         struct hisi_sas_command_table_ssp ssp;
 511         struct hisi_sas_command_table_smp smp;
 512         struct hisi_sas_command_table_stp stp;
 513 }  __aligned(16);
 514
 515 struct hisi_sas_status_buffer {
 516         struct hisi_sas_err_record err;
 517         u8      iu[1024];
 518 }  __aligned(16);
 519
 520 struct hisi_sas_slot_buf_table {
 521         struct hisi_sas_status_buffer status_buffer;
 522         union hisi_sas_command_table command_header;
 523         struct hisi_sas_sge_page sge_page;
 524 };
 525
 526 struct hisi_sas_slot_dif_buf_table {
 527         struct hisi_sas_slot_buf_table slot_buf;
 528         struct hisi_sas_sge_dif_page sge_dif_page;
 529 };
 530
 531 extern struct scsi_transport_template *hisi_sas_stt;
 532
 533 extern bool hisi_sas_debugfs_enable;
 534 extern struct dentry *hisi_sas_debugfs_dir;
 535
 536 extern void hisi_sas_stop_phys(struct hisi_hba *hisi_hba);
 537 extern int hisi_sas_alloc(struct hisi_hba *hisi_hba);
 538 extern void hisi_sas_free(struct hisi_hba *hisi_hba);
 539 extern u8 hisi_sas_get_ata_protocol(struct host_to_dev_fis *fis,
 540                                 int direction);
 541 extern struct hisi_sas_port *to_hisi_sas_port(struct asd_sas_port *sas_port);
 542 extern void hisi_sas_sata_done(struct sas_task *task,
 543                             struct hisi_sas_slot *slot);
 544 extern int hisi_sas_get_ncq_tag(struct sas_task *task, u32 *tag);
 545 extern int hisi_sas_get_fw_info(struct hisi_hba *hisi_hba);
 546 extern int hisi_sas_probe(struct platform_device *pdev,
 547                           const struct hisi_sas_hw *ops);
 548 extern int hisi_sas_remove(struct platform_device *pdev);
 549
 550 extern int hisi_sas_slave_configure(struct scsi_device *sdev);
 551 extern int hisi_sas_scan_finished(struct Scsi_Host *shost, unsigned long time);
 552 extern void hisi_sas_scan_start(struct Scsi_Host *shost);
 553 extern int hisi_sas_host_reset(struct Scsi_Host *shost, int reset_type);
 554 extern void hisi_sas_phy_down(struct hisi_hba *hisi_hba, int phy_no, int rdy);
 555 extern void hisi_sas_slot_task_free(struct hisi_hba *hisi_hba,
 556                                     struct sas_task *task,
 557                                     struct hisi_sas_slot *slot);
 558 extern void hisi_sas_init_mem(struct hisi_hba *hisi_hba);
 559 extern void hisi_sas_rst_work_handler(struct work_struct *work);
 560 extern void hisi_sas_sync_rst_work_handler(struct work_struct *work);
 561 extern void hisi_sas_kill_tasklets(struct hisi_hba *hisi_hba);
 562 extern void hisi_sas_phy_oob_ready(struct hisi_hba *hisi_hba, int phy_no);
 563 extern bool hisi_sas_notify_phy_event(struct hisi_sas_phy *phy,
 564                                 enum hisi_sas_phy_event event);
 565 extern void hisi_sas_release_tasks(struct hisi_hba *hisi_hba);
 566 extern u8 hisi_sas_get_prog_phy_linkrate_mask(enum sas_linkrate max);
 567 extern void hisi_sas_controller_reset_prepare(struct hisi_hba *hisi_hba);
 568 extern void hisi_sas_controller_reset_done(struct hisi_hba *hisi_hba);
 569 extern void hisi_sas_debugfs_init(struct hisi_hba *hisi_hba);
 570 extern void hisi_sas_debugfs_exit(struct hisi_hba *hisi_hba);
 571 extern void hisi_sas_debugfs_work_handler(struct work_struct *work);
 572 #endif