summaryrefslogtreecommitdiff
path: root/drivers/scsi/hisi_sas/hisi_sas.h
blob: 2b28dd405600326de2d3c81e08ada7594efb3a8f (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * Copyright (c) 2015 Linaro Ltd.
 * Copyright (c) 2015 Hisilicon Limited.
 */

#ifndef _HISI_SAS_H_
#define _HISI_SAS_H_

#include <linux/acpi.h>
#include <linux/blk-mq.h>
#include <linux/blk-mq-pci.h>
#include <linux/clk.h>
#include <linux/debugfs.h>
#include <linux/dmapool.h>
#include <linux/iopoll.h>
#include <linux/lcm.h>
#include <linux/libata.h>
#include <linux/mfd/syscon.h>
#include <linux/module.h>
#include <linux/of_address.h>
#include <linux/pci.h>
#include <linux/platform_device.h>
#include <linux/pm_runtime.h>
#include <linux/property.h>
#include <linux/regmap.h>
#include <linux/timer.h>
#include <scsi/sas_ata.h>
#include <scsi/libsas.h>

#define HISI_SAS_MAX_PHYS	9
#define HISI_SAS_MAX_QUEUES	32
#define HISI_SAS_QUEUE_SLOTS	4096
#define HISI_SAS_MAX_ITCT_ENTRIES 1024
#define HISI_SAS_MAX_DEVICES HISI_SAS_MAX_ITCT_ENTRIES
#define HISI_SAS_RESET_BIT	0
#define HISI_SAS_REJECT_CMD_BIT	1
#define HISI_SAS_PM_BIT		2
#define HISI_SAS_MAX_COMMANDS (HISI_SAS_QUEUE_SLOTS)
#define HISI_SAS_RESERVED_IPTT  96
#define HISI_SAS_UNRESERVED_IPTT \
	(HISI_SAS_MAX_COMMANDS - HISI_SAS_RESERVED_IPTT)

#define HISI_SAS_IOST_ITCT_CACHE_NUM 64
#define HISI_SAS_IOST_ITCT_CACHE_DW_SZ 10

#define HISI_SAS_STATUS_BUF_SZ (sizeof(struct hisi_sas_status_buffer))
#define HISI_SAS_COMMAND_TABLE_SZ (sizeof(union hisi_sas_command_table))

#define hisi_sas_status_buf_addr(buf) \
	((buf) + offsetof(struct hisi_sas_slot_buf_table, status_buffer))
#define hisi_sas_status_buf_addr_mem(slot) hisi_sas_status_buf_addr((slot)->buf)
#define hisi_sas_status_buf_addr_dma(slot) \
	hisi_sas_status_buf_addr((slot)->buf_dma)

#define hisi_sas_cmd_hdr_addr(buf) \
	((buf) + offsetof(struct hisi_sas_slot_buf_table, command_header))
#define hisi_sas_cmd_hdr_addr_mem(slot) hisi_sas_cmd_hdr_addr((slot)->buf)
#define hisi_sas_cmd_hdr_addr_dma(slot) hisi_sas_cmd_hdr_addr((slot)->buf_dma)

#define hisi_sas_sge_addr(buf) \
	((buf) + offsetof(struct hisi_sas_slot_buf_table, sge_page))
#define hisi_sas_sge_addr_mem(slot) hisi_sas_sge_addr((slot)->buf)
#define hisi_sas_sge_addr_dma(slot) hisi_sas_sge_addr((slot)->buf_dma)

#define hisi_sas_sge_dif_addr(buf) \
	((buf) + offsetof(struct hisi_sas_slot_dif_buf_table, sge_dif_page))
#define hisi_sas_sge_dif_addr_mem(slot) hisi_sas_sge_dif_addr((slot)->buf)
#define hisi_sas_sge_dif_addr_dma(slot) hisi_sas_sge_dif_addr((slot)->buf_dma)

#define HISI_SAS_MAX_SSP_RESP_SZ (sizeof(struct ssp_frame_hdr) + 1024)
#define HISI_SAS_MAX_SMP_RESP_SZ 1028
#define HISI_SAS_MAX_STP_RESP_SZ 28

#define HISI_SAS_SATA_PROTOCOL_NONDATA		0x1
#define HISI_SAS_SATA_PROTOCOL_PIO			0x2
#define HISI_SAS_SATA_PROTOCOL_DMA			0x4
#define HISI_SAS_SATA_PROTOCOL_FPDMA		0x8
#define HISI_SAS_SATA_PROTOCOL_ATAPI		0x10

#define HISI_SAS_DIF_PROT_MASK (SHOST_DIF_TYPE1_PROTECTION | \
				SHOST_DIF_TYPE2_PROTECTION | \
				SHOST_DIF_TYPE3_PROTECTION)

#define HISI_SAS_DIX_PROT_MASK (SHOST_DIX_TYPE1_PROTECTION | \
				SHOST_DIX_TYPE2_PROTECTION | \
				SHOST_DIX_TYPE3_PROTECTION)

#define HISI_SAS_PROT_MASK (HISI_SAS_DIF_PROT_MASK | HISI_SAS_DIX_PROT_MASK)

#define HISI_SAS_WAIT_PHYUP_TIMEOUT 20
#define CLEAR_ITCT_TIMEOUT	20

struct hisi_hba;

enum {
	PORT_TYPE_SAS = (1U << 1),
	PORT_TYPE_SATA = (1U << 0),
};

enum dev_status {
	HISI_SAS_DEV_INIT,
	HISI_SAS_DEV_NORMAL,
};

enum {
	HISI_SAS_INT_ABT_CMD = 0,
	HISI_SAS_INT_ABT_DEV = 1,
};

enum hisi_sas_dev_type {
	HISI_SAS_DEV_TYPE_STP = 0,
	HISI_SAS_DEV_TYPE_SSP,
	HISI_SAS_DEV_TYPE_SATA,
};

struct hisi_sas_hw_error {
	u32 irq_msk;
	u32 msk;
	int shift;
	const char *msg;
	int reg;
	const struct hisi_sas_hw_error *sub;
};

struct hisi_sas_rst {
	struct hisi_hba *hisi_hba;
	struct completion *completion;
	struct work_struct work;
	bool done;
};

#define HISI_SAS_RST_WORK_INIT(r, c) \
	{	.hisi_hba = hisi_hba, \
		.completion = &c, \
		.work = __WORK_INITIALIZER(r.work, \
				hisi_sas_sync_rst_work_handler), \
		.done = false, \
		}

#define HISI_SAS_DECLARE_RST_WORK_ON_STACK(r) \
	DECLARE_COMPLETION_ONSTACK(c); \
	struct hisi_sas_rst r = HISI_SAS_RST_WORK_INIT(r, c)

enum hisi_sas_bit_err_type {
	HISI_SAS_ERR_SINGLE_BIT_ECC = 0x0,
	HISI_SAS_ERR_MULTI_BIT_ECC = 0x1,
};

enum hisi_sas_phy_event {
	HISI_PHYE_PHY_UP   = 0U,
	HISI_PHYE_LINK_RESET,
	HISI_PHYES_NUM,
};

struct hisi_sas_phy {
	struct work_struct	works[HISI_PHYES_NUM];
	struct hisi_hba	*hisi_hba;
	struct hisi_sas_port	*port;
	struct asd_sas_phy	sas_phy;
	struct sas_identify	identify;
	struct completion *reset_completion;
	struct timer_list timer;
	spinlock_t lock;
	u64		port_id; /* from hw */
	u64		frame_rcvd_size;
	u8		frame_rcvd[32];
	u8		phy_attached;
	u8		in_reset;
	u8		reserved[2];
	u32		phy_type;
	u32		code_violation_err_count;
	enum sas_linkrate	minimum_linkrate;
	enum sas_linkrate	maximum_linkrate;
	int enable;
	atomic_t down_cnt;
};

struct hisi_sas_port {
	struct asd_sas_port	sas_port;
	u8	port_attached;
	u8	id; /* from hw */
};

struct hisi_sas_cq {
	struct hisi_hba *hisi_hba;
	const struct cpumask *irq_mask;
	int	rd_point;
	int	id;
	int	irq_no;
};

struct hisi_sas_dq {
	struct hisi_hba *hisi_hba;
	struct list_head list;
	spinlock_t lock;
	int	wr_point;
	int	id;
};

struct hisi_sas_device {
	struct hisi_hba		*hisi_hba;
	struct domain_device	*sas_device;
	struct completion *completion;
	struct hisi_sas_dq	*dq;
	struct list_head	list;
	enum sas_device_type	dev_type;
	enum dev_status dev_status;
	int device_id;
	int sata_idx;
	spinlock_t lock; /* For protecting slots */
};

struct hisi_sas_tmf_task {
	int force_phy;
	int phy_id;
	u8 tmf;
	u16 tag_of_task_to_be_managed;
};

struct hisi_sas_slot {
	struct list_head entry;
	struct list_head delivery;
	struct sas_task *task;
	struct hisi_sas_port	*port;
	u64	n_elem;
	u64	n_elem_dif;
	int	dlvry_queue;
	int	dlvry_queue_slot;
	int	cmplt_queue;
	int	cmplt_queue_slot;
	int	abort;
	int	ready;
	int	device_id;
	void	*cmd_hdr;
	dma_addr_t cmd_hdr_dma;
	struct timer_list internal_abort_timer;
	bool is_internal;
	struct hisi_sas_tmf_task *tmf;
	/* Do not reorder/change members after here */
	void	*buf;
	dma_addr_t buf_dma;
	u16	idx;
};

struct hisi_sas_iost_itct_cache {
	u32 data[HISI_SAS_IOST_ITCT_CACHE_DW_SZ];
};

enum hisi_sas_debugfs_reg_array_member {
	DEBUGFS_GLOBAL = 0,
	DEBUGFS_AXI,
	DEBUGFS_RAS,
	DEBUGFS_REGS_NUM
};

enum hisi_sas_debugfs_cache_type {
	HISI_SAS_ITCT_CACHE,
	HISI_SAS_IOST_CACHE,
};

enum hisi_sas_debugfs_bist_ffe_cfg {
	FFE_SAS_1_5_GBPS,
	FFE_SAS_3_0_GBPS,
	FFE_SAS_6_0_GBPS,
	FFE_SAS_12_0_GBPS,
	FFE_RESV,
	FFE_SATA_1_5_GBPS,
	FFE_SATA_3_0_GBPS,
	FFE_SATA_6_0_GBPS,
	FFE_CFG_MAX
};

enum hisi_sas_debugfs_bist_fixed_code {
	FIXED_CODE,
	FIXED_CODE_1,
	FIXED_CODE_MAX
};

enum {
	HISI_SAS_BIST_CODE_MODE_PRBS7,
	HISI_SAS_BIST_CODE_MODE_PRBS23,
	HISI_SAS_BIST_CODE_MODE_PRBS31,
	HISI_SAS_BIST_CODE_MODE_JTPAT,
	HISI_SAS_BIST_CODE_MODE_CJTPAT,
	HISI_SAS_BIST_CODE_MODE_SCRAMBED_0,
	HISI_SAS_BIST_CODE_MODE_TRAIN,
	HISI_SAS_BIST_CODE_MODE_TRAIN_DONE,
	HISI_SAS_BIST_CODE_MODE_HFTP,
	HISI_SAS_BIST_CODE_MODE_MFTP,
	HISI_SAS_BIST_CODE_MODE_LFTP,
	HISI_SAS_BIST_CODE_MODE_FIXED_DATA,
};

struct hisi_sas_hw {
	int (*hw_init)(struct hisi_hba *hisi_hba);
	void (*setup_itct)(struct hisi_hba *hisi_hba,
			   struct hisi_sas_device *device);
	int (*slot_index_alloc)(struct hisi_hba *hisi_hba,
				struct domain_device *device);
	struct hisi_sas_device *(*alloc_dev)(struct domain_device *device);
	void (*sl_notify_ssp)(struct hisi_hba *hisi_hba, int phy_no);
	void (*start_delivery)(struct hisi_sas_dq *dq);
	void (*prep_ssp)(struct hisi_hba *hisi_hba,
			struct hisi_sas_slot *slot);
	void (*prep_smp)(struct hisi_hba *hisi_hba,
			struct hisi_sas_slot *slot);
	void (*prep_stp)(struct hisi_hba *hisi_hba,
			struct hisi_sas_slot *slot);
	void (*prep_abort)(struct hisi_hba *hisi_hba,
			  struct hisi_sas_slot *slot,
			  int device_id, int abort_flag, int tag_to_abort);
	void (*phys_init)(struct hisi_hba *hisi_hba);
	void (*phy_start)(struct hisi_hba *hisi_hba, int phy_no);
	void (*phy_disable)(struct hisi_hba *hisi_hba, int phy_no);
	void (*phy_hard_reset)(struct hisi_hba *hisi_hba, int phy_no);
	void (*get_events)(struct hisi_hba *hisi_hba, int phy_no);
	void (*phy_set_linkrate)(struct hisi_hba *hisi_hba, int phy_no,
			struct sas_phy_linkrates *linkrates);
	enum sas_linkrate (*phy_get_max_linkrate)(void);
	int (*clear_itct)(struct hisi_hba *hisi_hba,
			  struct hisi_sas_device *dev);
	void (*free_device)(struct hisi_sas_device *sas_dev);
	int (*get_wideport_bitmap)(struct hisi_hba *hisi_hba, int port_id);
	void (*dereg_device)(struct hisi_hba *hisi_hba,
				struct domain_device *device);
	int (*soft_reset)(struct hisi_hba *hisi_hba);
	u32 (*get_phys_state)(struct hisi_hba *hisi_hba);
	int (*write_gpio)(struct hisi_hba *hisi_hba, u8 reg_type,
				u8 reg_index, u8 reg_count, u8 *write_data);
	void (*wait_cmds_complete_timeout)(struct hisi_hba *hisi_hba,
					   int delay_ms, int timeout_ms);
	void (*snapshot_prepare)(struct hisi_hba *hisi_hba);
	void (*snapshot_restore)(struct hisi_hba *hisi_hba);
	int complete_hdr_size;
	struct scsi_host_template *sht;
};

#define HISI_SAS_MAX_DEBUGFS_DUMP (50)

struct hisi_sas_debugfs_cq {
	struct hisi_sas_cq *cq;
	void *complete_hdr;
};

struct hisi_sas_debugfs_dq {
	struct hisi_sas_dq *dq;
	struct hisi_sas_cmd_hdr *hdr;
};

struct hisi_sas_debugfs_regs {
	struct hisi_hba *hisi_hba;
	u32 *data;
};

struct hisi_sas_debugfs_port {
	struct hisi_sas_phy *phy;
	u32 *data;
};

struct hisi_sas_debugfs_iost {
	struct hisi_sas_iost *iost;
};

struct hisi_sas_debugfs_itct {
	struct hisi_sas_itct *itct;
};

struct hisi_sas_debugfs_iost_cache {
	struct hisi_sas_iost_itct_cache *cache;
};

struct hisi_sas_debugfs_itct_cache {
	struct hisi_sas_iost_itct_cache *cache;
};

struct hisi_hba {
	/* This must be the first element, used by SHOST_TO_SAS_HA */
	struct sas_ha_struct *p;

	struct platform_device *platform_dev;
	struct pci_dev *pci_dev;
	struct device *dev;

	int prot_mask;

	void __iomem *regs;
	void __iomem *sgpio_regs;
	struct regmap *ctrl;
	u32 ctrl_reset_reg;
	u32 ctrl_reset_sts_reg;
	u32 ctrl_clock_ena_reg;
	u32 refclk_frequency_mhz;
	u8 sas_addr[SAS_ADDR_SIZE];

	int n_phy;
	spinlock_t lock;
	struct semaphore sem;

	struct timer_list timer;
	struct workqueue_struct *wq;

	int slot_index_count;
	int last_slot_index;
	int last_dev_id;
	unsigned long *slot_index_tags;
	unsigned long reject_stp_links_msk;

	/* SCSI/SAS glue */
	struct sas_ha_struct sha;
	struct Scsi_Host *shost;

	struct hisi_sas_cq cq[HISI_SAS_MAX_QUEUES];
	struct hisi_sas_dq dq[HISI_SAS_MAX_QUEUES];
	struct hisi_sas_phy phy[HISI_SAS_MAX_PHYS];
	struct hisi_sas_port port[HISI_SAS_MAX_PHYS];

	int	queue_count;

	struct hisi_sas_device	devices[HISI_SAS_MAX_DEVICES];
	struct hisi_sas_cmd_hdr	*cmd_hdr[HISI_SAS_MAX_QUEUES];
	dma_addr_t cmd_hdr_dma[HISI_SAS_MAX_QUEUES];
	void *complete_hdr[HISI_SAS_MAX_QUEUES];
	dma_addr_t complete_hdr_dma[HISI_SAS_MAX_QUEUES];
	struct hisi_sas_initial_fis *initial_fis;
	dma_addr_t initial_fis_dma;
	struct hisi_sas_itct *itct;
	dma_addr_t itct_dma;
	struct hisi_sas_iost *iost;
	dma_addr_t iost_dma;
	struct hisi_sas_breakpoint *breakpoint;
	dma_addr_t breakpoint_dma;
	struct hisi_sas_breakpoint *sata_breakpoint;
	dma_addr_t sata_breakpoint_dma;
	struct hisi_sas_slot	*slot_info;
	unsigned long flags;
	const struct hisi_sas_hw *hw;	/* Low level hw interface */
	unsigned long sata_dev_bitmap[BITS_TO_LONGS(HISI_SAS_MAX_DEVICES)];
	struct work_struct rst_work;
	struct work_struct debugfs_work;
	u32 phy_state;
	u32 intr_coal_ticks;	/* Time of interrupt coalesce in us */
	u32 intr_coal_count;	/* Interrupt count to coalesce */

	int cq_nvecs;

	/* bist */
	enum sas_linkrate debugfs_bist_linkrate;
	int debugfs_bist_code_mode;
	int debugfs_bist_phy_no;
	int debugfs_bist_mode;
	u32 debugfs_bist_cnt;
	int debugfs_bist_enable;
	u32 debugfs_bist_ffe[HISI_SAS_MAX_PHYS][FFE_CFG_MAX];
	u32 debugfs_bist_fixed_code[FIXED_CODE_MAX];

	/* debugfs memories */
	/* Put Global AXI and RAS Register into register array */
	struct hisi_sas_debugfs_regs debugfs_regs[HISI_SAS_MAX_DEBUGFS_DUMP][DEBUGFS_REGS_NUM];
	struct hisi_sas_debugfs_port debugfs_port_reg[HISI_SAS_MAX_DEBUGFS_DUMP][HISI_SAS_MAX_PHYS];
	struct hisi_sas_debugfs_cq debugfs_cq[HISI_SAS_MAX_DEBUGFS_DUMP][HISI_SAS_MAX_QUEUES];
	struct hisi_sas_debugfs_dq debugfs_dq[HISI_SAS_MAX_DEBUGFS_DUMP][HISI_SAS_MAX_QUEUES];
	struct hisi_sas_debugfs_iost debugfs_iost[HISI_SAS_MAX_DEBUGFS_DUMP];
	struct hisi_sas_debugfs_itct debugfs_itct[HISI_SAS_MAX_DEBUGFS_DUMP];
	struct hisi_sas_debugfs_iost_cache debugfs_iost_cache[HISI_SAS_MAX_DEBUGFS_DUMP];
	struct hisi_sas_debugfs_itct_cache debugfs_itct_cache[HISI_SAS_MAX_DEBUGFS_DUMP];

	u64 debugfs_timestamp[HISI_SAS_MAX_DEBUGFS_DUMP];
	int debugfs_dump_index;
	struct dentry *debugfs_dir;
	struct dentry *debugfs_dump_dentry;
	struct dentry *debugfs_bist_dentry;
};

/* Generic HW DMA host memory structures */
/* Delivery queue header */
struct hisi_sas_cmd_hdr {
	/* dw0 */
	__le32 dw0;

	/* dw1 */
	__le32 dw1;

	/* dw2 */
	__le32 dw2;

	/* dw3 */
	__le32 transfer_tags;

	/* dw4 */
	__le32 data_transfer_len;

	/* dw5 */
	__le32 first_burst_num;

	/* dw6 */
	__le32 sg_len;

	/* dw7 */
	__le32 dw7;

	/* dw8-9 */
	__le64 cmd_table_addr;

	/* dw10-11 */
	__le64 sts_buffer_addr;

	/* dw12-13 */
	__le64 prd_table_addr;

	/* dw14-15 */
	__le64 dif_prd_table_addr;
};

struct hisi_sas_itct {
	__le64 qw0;
	__le64 sas_addr;
	__le64 qw2;
	__le64 qw3;
	__le64 qw4_15[12];
};

struct hisi_sas_iost {
	__le64 qw0;
	__le64 qw1;
	__le64 qw2;
	__le64 qw3;
};

struct hisi_sas_err_record {
	u32	data[4];
};

struct hisi_sas_initial_fis {
	struct hisi_sas_err_record err_record;
	struct dev_to_host_fis fis;
	u32 rsvd[3];
};

struct hisi_sas_breakpoint {
	u8	data[128];
};

struct hisi_sas_sata_breakpoint {
	struct hisi_sas_breakpoint tag[32];
};

struct hisi_sas_sge {
	__le64 addr;
	__le32 page_ctrl_0;
	__le32 page_ctrl_1;
	__le32 data_len;
	__le32 data_off;
};

struct hisi_sas_command_table_smp {
	u8 bytes[44];
};

struct hisi_sas_command_table_stp {
	struct	host_to_dev_fis command_fis;
	u8	dummy[12];
	u8	atapi_cdb[ATAPI_CDB_LEN];
};

#define HISI_SAS_SGE_PAGE_CNT (124)
struct hisi_sas_sge_page {
	struct hisi_sas_sge sge[HISI_SAS_SGE_PAGE_CNT];
}  __aligned(16);

#define HISI_SAS_SGE_DIF_PAGE_CNT   HISI_SAS_SGE_PAGE_CNT
struct hisi_sas_sge_dif_page {
	struct hisi_sas_sge sge[HISI_SAS_SGE_DIF_PAGE_CNT];
}  __aligned(16);

struct hisi_sas_command_table_ssp {
	struct ssp_frame_hdr hdr;
	union {
		struct {
			struct ssp_command_iu task;
			u32 prot[7];
		};
		struct ssp_tmf_iu ssp_task;
		struct xfer_rdy_iu xfer_rdy;
		struct ssp_response_iu ssp_res;
	} u;
};

union hisi_sas_command_table {
	struct hisi_sas_command_table_ssp ssp;
	struct hisi_sas_command_table_smp smp;
	struct hisi_sas_command_table_stp stp;
}  __aligned(16);

struct hisi_sas_status_buffer {
	struct hisi_sas_err_record err;
	u8	iu[1024];
}  __aligned(16);

struct hisi_sas_slot_buf_table {
	struct hisi_sas_status_buffer status_buffer;
	union hisi_sas_command_table command_header;
	struct hisi_sas_sge_page sge_page;
};

struct hisi_sas_slot_dif_buf_table {
	struct hisi_sas_slot_buf_table slot_buf;
	struct hisi_sas_sge_dif_page sge_dif_page;
};

extern struct scsi_transport_template *hisi_sas_stt;

extern bool hisi_sas_debugfs_enable;
extern u32 hisi_sas_debugfs_dump_count;
extern struct dentry *hisi_sas_debugfs_dir;

extern void hisi_sas_stop_phys(struct hisi_hba *hisi_hba);
extern int hisi_sas_alloc(struct hisi_hba *hisi_hba);
extern void hisi_sas_free(struct hisi_hba *hisi_hba);
extern u8 hisi_sas_get_ata_protocol(struct host_to_dev_fis *fis,
				int direction);
extern struct hisi_sas_port *to_hisi_sas_port(struct asd_sas_port *sas_port);
extern void hisi_sas_sata_done(struct sas_task *task,
			    struct hisi_sas_slot *slot);
extern int hisi_sas_get_fw_info(struct hisi_hba *hisi_hba);
extern int hisi_sas_probe(struct platform_device *pdev,
			  const struct hisi_sas_hw *ops);
extern int hisi_sas_remove(struct platform_device *pdev);

extern int hisi_sas_slave_configure(struct scsi_device *sdev);
extern int hisi_sas_scan_finished(struct Scsi_Host *shost, unsigned long time);
extern void hisi_sas_scan_start(struct Scsi_Host *shost);
extern int hisi_sas_host_reset(struct Scsi_Host *shost, int reset_type);
extern void hisi_sas_phy_enable(struct hisi_hba *hisi_hba, int phy_no,
				int enable);
extern void hisi_sas_phy_down(struct hisi_hba *hisi_hba, int phy_no, int rdy);
extern void hisi_sas_slot_task_free(struct hisi_hba *hisi_hba,
				    struct sas_task *task,
				    struct hisi_sas_slot *slot);
extern void hisi_sas_init_mem(struct hisi_hba *hisi_hba);
extern void hisi_sas_rst_work_handler(struct work_struct *work);
extern void hisi_sas_sync_rst_work_handler(struct work_struct *work);
extern void hisi_sas_sync_irqs(struct hisi_hba *hisi_hba);
extern void hisi_sas_phy_oob_ready(struct hisi_hba *hisi_hba, int phy_no);
extern bool hisi_sas_notify_phy_event(struct hisi_sas_phy *phy,
				enum hisi_sas_phy_event event);
extern void hisi_sas_release_tasks(struct hisi_hba *hisi_hba);
extern u8 hisi_sas_get_prog_phy_linkrate_mask(enum sas_linkrate max);
extern void hisi_sas_controller_reset_prepare(struct hisi_hba *hisi_hba);
extern void hisi_sas_controller_reset_done(struct hisi_hba *hisi_hba);
#endif