summaryrefslogtreecommitdiffstats
path: root/drivers/scsi/pm8001/pm8001_sas.h
blob: b97c8ab0c20e744f5b37ffe6e5e549381ada7c05 (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
/*
 * PMC-Sierra SPC 8001 SAS/SATA based host adapters driver
 *
 * Copyright (c) 2008-2009 USI Co., Ltd.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions, and the following disclaimer,
 *    without modification.
 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
 *    substantially similar to the "NO WARRANTY" disclaimer below
 *    ("Disclaimer") and any redistribution must be conditioned upon
 *    including a substantially similar Disclaimer requirement for further
 *    binary redistribution.
 * 3. Neither the names of the above-listed copyright holders nor the names
 *    of any contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * Alternatively, this software may be distributed under the terms of the
 * GNU General Public License ("GPL") version 2 as published by the Free
 * Software Foundation.
 *
 * NO WARRANTY
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGES.
 *
 */

#ifndef _PM8001_SAS_H_
#define _PM8001_SAS_H_

#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/spinlock.h>
#include <linux/delay.h>
#include <linux/types.h>
#include <linux/ctype.h>
#include <linux/dma-mapping.h>
#include <linux/pci.h>
#include <linux/interrupt.h>
#include <linux/workqueue.h>
#include <scsi/libsas.h>
#include <scsi/scsi_tcq.h>
#include <scsi/sas_ata.h>
#include <linux/atomic.h>
#include "pm8001_defs.h"

#define DRV_NAME		"pm8001"
#define DRV_VERSION		"0.1.36"
#define PM8001_FAIL_LOGGING	0x01 /* Error message logging */
#define PM8001_INIT_LOGGING	0x02 /* driver init logging */
#define PM8001_DISC_LOGGING	0x04 /* discovery layer logging */
#define PM8001_IO_LOGGING	0x08 /* I/O path logging */
#define PM8001_EH_LOGGING	0x10 /* libsas EH function logging*/
#define PM8001_IOCTL_LOGGING	0x20 /* IOCTL message logging */
#define PM8001_MSG_LOGGING	0x40 /* misc message logging */
#define pm8001_printk(format, arg...)	printk(KERN_INFO "%s %d:" format,\
				__func__, __LINE__, ## arg)
#define PM8001_CHECK_LOGGING(HBA, LEVEL, CMD)	\
do {						\
	if (unlikely(HBA->logging_level & LEVEL))	\
		do {					\
			CMD;				\
		} while (0);				\
} while (0);

#define PM8001_EH_DBG(HBA, CMD)			\
	PM8001_CHECK_LOGGING(HBA, PM8001_EH_LOGGING, CMD)

#define PM8001_INIT_DBG(HBA, CMD)		\
	PM8001_CHECK_LOGGING(HBA, PM8001_INIT_LOGGING, CMD)

#define PM8001_DISC_DBG(HBA, CMD)		\
	PM8001_CHECK_LOGGING(HBA, PM8001_DISC_LOGGING, CMD)

#define PM8001_IO_DBG(HBA, CMD)		\
	PM8001_CHECK_LOGGING(HBA, PM8001_IO_LOGGING, CMD)

#define PM8001_FAIL_DBG(HBA, CMD)		\
	PM8001_CHECK_LOGGING(HBA, PM8001_FAIL_LOGGING, CMD)

#define PM8001_IOCTL_DBG(HBA, CMD)		\
	PM8001_CHECK_LOGGING(HBA, PM8001_IOCTL_LOGGING, CMD)

#define PM8001_MSG_DBG(HBA, CMD)		\
	PM8001_CHECK_LOGGING(HBA, PM8001_MSG_LOGGING, CMD)


#define PM8001_USE_TASKLET
#define PM8001_USE_MSIX
#define PM8001_READ_VPD


#define DEV_IS_EXPANDER(type)	((type == EDGE_DEV) || (type == FANOUT_DEV))

#define PM8001_NAME_LENGTH		32/* generic length of strings */
extern struct list_head hba_list;
extern const struct pm8001_dispatch pm8001_8001_dispatch;

struct pm8001_hba_info;
struct pm8001_ccb_info;
struct pm8001_device;
/* define task management IU */
struct pm8001_tmf_task {
	u8	tmf;
	u32	tag_of_task_to_be_managed;
};
struct pm8001_ioctl_payload {
	u32	signature;
	u16	major_function;
	u16	minor_function;
	u16	length;
	u16	status;
	u16	offset;
	u16	id;
	u8	*func_specific;
};

struct pm8001_dispatch {
	char *name;
	int (*chip_init)(struct pm8001_hba_info *pm8001_ha);
	int (*chip_soft_rst)(struct pm8001_hba_info *pm8001_ha, u32 signature);
	void (*chip_rst)(struct pm8001_hba_info *pm8001_ha);
	int (*chip_ioremap)(struct pm8001_hba_info *pm8001_ha);
	void (*chip_iounmap)(struct pm8001_hba_info *pm8001_ha);
	irqreturn_t (*isr)(struct pm8001_hba_info *pm8001_ha);
	u32 (*is_our_interupt)(struct pm8001_hba_info *pm8001_ha);
	int (*isr_process_oq)(struct pm8001_hba_info *pm8001_ha);
	void (*interrupt_enable)(struct pm8001_hba_info *pm8001_ha);
	void (*interrupt_disable)(struct pm8001_hba_info *pm8001_ha);
	void (*make_prd)(struct scatterlist *scatter, int nr, void *prd);
	int (*smp_req)(struct pm8001_hba_info *pm8001_ha,
		struct pm8001_ccb_info *ccb);
	int (*ssp_io_req)(struct pm8001_hba_info *pm8001_ha,
		struct pm8001_ccb_info *ccb);
	int (*sata_req)(struct pm8001_hba_info *pm8001_ha,
		struct pm8001_ccb_info *ccb);
	int (*phy_start_req)(struct pm8001_hba_info *pm8001_ha,	u8 phy_id);
	int (*phy_stop_req)(struct pm8001_hba_info *pm8001_ha, u8 phy_id);
	int (*reg_dev_req)(struct pm8001_hba_info *pm8001_ha,
		struct pm8001_device *pm8001_dev, u32 flag);
	int (*dereg_dev_req)(struct pm8001_hba_info *pm8001_ha, u32 device_id);
	int (*phy_ctl_req)(struct pm8001_hba_info *pm8001_ha,
		u32 phy_id, u32 phy_op);
	int (*task_abort)(struct pm8001_hba_info *pm8001_ha,
		struct pm8001_device *pm8001_dev, u8 flag, u32 task_tag,
		u32 cmd_tag);
	int (*ssp_tm_req)(struct pm8001_hba_info *pm8001_ha,
		struct pm8001_ccb_info *ccb, struct pm8001_tmf_task *tmf);
	int (*get_nvmd_req)(struct pm8001_hba_info *pm8001_ha, void *payload);
	int (*set_nvmd_req)(struct pm8001_hba_info *pm8001_ha, void *payload);
	int (*fw_flash_update_req)(struct pm8001_hba_info *pm8001_ha,
		void *payload);
	int (*set_dev_state_req)(struct pm8001_hba_info *pm8001_ha,
		struct pm8001_device *pm8001_dev, u32 state);
	int (*sas_diag_start_end_req)(struct pm8001_hba_info *pm8001_ha,
		u32 state);
	int (*sas_diag_execute_req)(struct pm8001_hba_info *pm8001_ha,
		u32 state);
	int (*sas_re_init_req)(struct pm8001_hba_info *pm8001_ha);
};

struct pm8001_chip_info {
	u32	n_phy;
	const struct pm8001_dispatch	*dispatch;
};
#define PM8001_CHIP_DISP	(pm8001_ha->chip->dispatch)

struct pm8001_port {
	struct asd_sas_port	sas_port;
	u8			port_attached;
	u8			wide_port_phymap;
	u8			port_state;
	struct list_head	list;
};

struct pm8001_phy {
	struct pm8001_hba_info	*pm8001_ha;
	struct pm8001_port	*port;
	struct asd_sas_phy	sas_phy;
	struct sas_identify	identify;
	struct scsi_device	*sdev;
	u64			dev_sas_addr;
	u32			phy_type;
	struct completion	*enable_completion;
	u32			frame_rcvd_size;
	u8			frame_rcvd[32];
	u8			phy_attached;
	u8			phy_state;
	enum sas_linkrate	minimum_linkrate;
	enum sas_linkrate	maximum_linkrate;
};

struct pm8001_device {
	enum sas_dev_type	dev_type;
	struct domain_device	*sas_device;
	u32			attached_phy;
	u32			id;
	struct completion	*dcompletion;
	struct completion	*setds_completion;
	u32			device_id;
	u32			running_req;
};

struct pm8001_prd_imt {
	__le32			len;
	__le32			e;
};

struct pm8001_prd {
	__le64			addr;		/* 64-bit buffer address */
	struct pm8001_prd_imt	im_len;		/* 64-bit length */
} __attribute__ ((packed));
/*
 * CCB(Command Control Block)
 */
struct pm8001_ccb_info {
	struct list_head	entry;
	struct sas_task		*task;
	u32			n_elem;
	u32			ccb_tag;
	dma_addr_t		ccb_dma_handle;
	struct pm8001_device	*device;
	struct pm8001_prd	buf_prd[PM8001_MAX_DMA_SG];
	struct fw_control_ex	*fw_control_context;
};

struct mpi_mem {
	void			*virt_ptr;
	dma_addr_t		phys_addr;
	u32			phys_addr_hi;
	u32			phys_addr_lo;
	u32			total_len;
	u32			num_elements;
	u32			element_size;
	u32			alignment;
};

struct mpi_mem_req {
	/* The number of element in the  mpiMemory array */
	u32			count;
	/* The array of structures that define memroy regions*/
	struct mpi_mem		region[USI_MAX_MEMCNT];
};

struct main_cfg_table {
	u32			signature;
	u32			interface_rev;
	u32			firmware_rev;
	u32			max_out_io;
	u32			max_sgl;
	u32			ctrl_cap_flag;
	u32			gst_offset;
	u32			inbound_queue_offset;
	u32			outbound_queue_offset;
	u32			inbound_q_nppd_hppd;
	u32			outbound_hw_event_pid0_3;
	u32			outbound_hw_event_pid4_7;
	u32			outbound_ncq_event_pid0_3;
	u32			outbound_ncq_event_pid4_7;
	u32			outbound_tgt_ITNexus_event_pid0_3;
	u32			outbound_tgt_ITNexus_event_pid4_7;
	u32			outbound_tgt_ssp_event_pid0_3;
	u32			outbound_tgt_ssp_event_pid4_7;
	u32			outbound_tgt_smp_event_pid0_3;
	u32			outbound_tgt_smp_event_pid4_7;
	u32			upper_event_log_addr;
	u32			lower_event_log_addr;
	u32			event_log_size;
	u32			event_log_option;
	u32			upper_iop_event_log_addr;
	u32			lower_iop_event_log_addr;
	u32			iop_event_log_size;
	u32			iop_event_log_option;
	u32			fatal_err_interrupt;
	u32			fatal_err_dump_offset0;
	u32			fatal_err_dump_length0;
	u32			fatal_err_dump_offset1;
	u32			fatal_err_dump_length1;
	u32			hda_mode_flag;
	u32			anolog_setup_table_offset;
};
struct general_status_table {
	u32			gst_len_mpistate;
	u32			iq_freeze_state0;
	u32			iq_freeze_state1;
	u32			msgu_tcnt;
	u32			iop_tcnt;
	u32			reserved;
	u32			phy_state[8];
	u32			reserved1;
	u32			reserved2;
	u32			reserved3;
	u32			recover_err_info[8];
};
struct inbound_queue_table {
	u32			element_pri_size_cnt;
	u32			upper_base_addr;
	u32			lower_base_addr;
	u32			ci_upper_base_addr;
	u32			ci_lower_base_addr;
	u32			pi_pci_bar;
	u32			pi_offset;
	u32			total_length;
	void			*base_virt;
	void			*ci_virt;
	u32			reserved;
	__le32			consumer_index;
	u32			producer_idx;
};
struct outbound_queue_table {
	u32			element_size_cnt;
	u32			upper_base_addr;
	u32			lower_base_addr;
	void			*base_virt;
	u32			pi_upper_base_addr;
	u32			pi_lower_base_addr;
	u32			ci_pci_bar;
	u32			ci_offset;
	u32			total_length;
	void			*pi_virt;
	u32			interrup_vec_cnt_delay;
	u32			dinterrup_to_pci_offset;
	__le32			producer_index;
	u32			consumer_idx;
};
struct pm8001_hba_memspace {
	void __iomem  		*memvirtaddr;
	u64			membase;
	u32			memsize;
};
struct pm8001_hba_info {
	char			name[PM8001_NAME_LENGTH];
	struct list_head	list;
	unsigned long		flags;
	spinlock_t		lock;/* host-wide lock */
	struct pci_dev		*pdev;/* our device */
	struct device		*dev;
	struct pm8001_hba_memspace io_mem[6];
	struct mpi_mem_req	memoryMap;
	void __iomem	*msg_unit_tbl_addr;/*Message Unit Table Addr*/
	void __iomem	*main_cfg_tbl_addr;/*Main Config Table Addr*/
	void __iomem	*general_stat_tbl_addr;/*General Status Table Addr*/
	void __iomem	*inbnd_q_tbl_addr;/*Inbound Queue Config Table Addr*/
	void __iomem	*outbnd_q_tbl_addr;/*Outbound Queue Config Table Addr*/
	struct main_cfg_table	main_cfg_tbl;
	struct general_status_table	gs_tbl;
	struct inbound_queue_table	inbnd_q_tbl[PM8001_MAX_INB_NUM];
	struct outbound_queue_table	outbnd_q_tbl[PM8001_MAX_OUTB_NUM];
	u8			sas_addr[SAS_ADDR_SIZE];
	struct sas_ha_struct	*sas;/* SCSI/SAS glue */
	struct Scsi_Host	*shost;
	u32			chip_id;
	const struct pm8001_chip_info	*chip;
	struct completion	*nvmd_completion;
	int			tags_num;
	unsigned long		*tags;
	struct pm8001_phy	phy[PM8001_MAX_PHYS];
	struct pm8001_port	port[PM8001_MAX_PHYS];
	u32			id;
	u32			irq;
	struct pm8001_device	*devices;
	struct pm8001_ccb_info	*ccb_info;
#ifdef PM8001_USE_MSIX
	struct msix_entry	msix_entries[16];/*for msi-x interrupt*/
	int			number_of_intr;/*will be used in remove()*/
#endif
#ifdef PM8001_USE_TASKLET
	struct tasklet_struct	tasklet;
#endif
	u32			logging_level;
	u32			fw_status;
	const struct firmware 	*fw_image;
};

struct pm8001_work {
	struct work_struct work;
	struct pm8001_hba_info *pm8001_ha;
	void *data;
	int handler;
};

struct pm8001_fw_image_header {
	u8 vender_id[8];
	u8 product_id;
	u8 hardware_rev;
	u8 dest_partition;
	u8 reserved;
	u8 fw_rev[4];
	__be32  image_length;
	__be32 image_crc;
	__be32 startup_entry;
} __attribute__((packed, aligned(4)));


/**
 * FW Flash Update status values
 */
#define FLASH_UPDATE_COMPLETE_PENDING_REBOOT	0x00
#define FLASH_UPDATE_IN_PROGRESS		0x01
#define FLASH_UPDATE_HDR_ERR			0x02
#define FLASH_UPDATE_OFFSET_ERR			0x03
#define FLASH_UPDATE_CRC_ERR			0x04
#define FLASH_UPDATE_LENGTH_ERR			0x05
#define FLASH_UPDATE_HW_ERR			0x06
#define FLASH_UPDATE_DNLD_NOT_SUPPORTED		0x10
#define FLASH_UPDATE_DISABLED			0x11

/**
 * brief param structure for firmware flash update.
 */
struct fw_flash_updata_info {
	u32			cur_image_offset;
	u32			cur_image_len;
	u32			total_image_len;
	struct pm8001_prd	sgl;
};

struct fw_control_info {
	u32			retcode;/*ret code (status)*/
	u32			phase;/*ret code phase*/
	u32			phaseCmplt;/*percent complete for the current
	update phase */
	u32			version;/*Hex encoded firmware version number*/
	u32			offset;/*Used for downloading firmware	*/
	u32			len; /*len of buffer*/
	u32			size;/* Used in OS VPD and Trace get size
	operations.*/
	u32			reserved;/* padding required for 64 bit
	alignment */
	u8			buffer[1];/* Start of buffer */
};
struct fw_control_ex {
	struct fw_control_info *fw_control;
	void			*buffer;/* keep buffer pointer to be
	freed when the response comes*/
	void			*virtAddr;/* keep virtual address of the data */
	void			*usrAddr;/* keep virtual address of the
	user data */
	dma_addr_t		phys_addr;
	u32			len; /* len of buffer  */
	void			*payload; /* pointer to IOCTL Payload */
	u8			inProgress;/*if 1 - the IOCTL request is in
	progress */
	void			*param1;
	void			*param2;
	void			*param3;
};

/* pm8001 workqueue */
extern struct workqueue_struct *pm8001_wq;

/******************** function prototype *********************/
int pm8001_tag_alloc(struct pm8001_hba_info *pm8001_ha, u32 *tag_out);
void pm8001_tag_init(struct pm8001_hba_info *pm8001_ha);
u32 pm8001_get_ncq_tag(struct sas_task *task, u32 *tag);
void pm8001_ccb_free(struct pm8001_hba_info *pm8001_ha, u32 ccb_idx);
void pm8001_ccb_task_free(struct pm8001_hba_info *pm8001_ha,
	struct sas_task *task, struct pm8001_ccb_info *ccb, u32 ccb_idx);
int pm8001_phy_control(struct asd_sas_phy *sas_phy, enum phy_func func,
	void *funcdata);
int pm8001_slave_alloc(struct scsi_device *scsi_dev);
int pm8001_slave_configure(struct scsi_device *sdev);
void pm8001_scan_start(struct Scsi_Host *shost);
int pm8001_scan_finished(struct Scsi_Host *shost, unsigned long time);
int pm8001_queue_command(struct sas_task *task, const int num,
	gfp_t gfp_flags);
int pm8001_abort_task(struct sas_task *task);
int pm8001_abort_task_set(struct domain_device *dev, u8 *lun);
int pm8001_clear_aca(struct domain_device *dev, u8 *lun);
int pm8001_clear_task_set(struct domain_device *dev, u8 *lun);
int pm8001_dev_found(struct domain_device *dev);
void pm8001_dev_gone(struct domain_device *dev);
int pm8001_lu_reset(struct domain_device *dev, u8 *lun);
int pm8001_I_T_nexus_reset(struct domain_device *dev);
int pm8001_query_task(struct sas_task *task);
int pm8001_mem_alloc(struct pci_dev *pdev, void **virt_addr,
	dma_addr_t *pphys_addr, u32 *pphys_addr_hi, u32 *pphys_addr_lo,
	u32 mem_size, u32 align);


/* ctl shared API */
extern struct device_attribute *pm8001_host_attrs[];

#endif

OpenPOWER on IntegriCloud