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