libsas.h

  1/* SPDX-License-Identifier: GPL-2.0-only */
  2/*
  3 * SAS host prototypes and structures header file
  4 *
  5 * Copyright (C) 2005 Adaptec, Inc.  All rights reserved.
  6 * Copyright (C) 2005 Luben Tuikov <luben_tuikov@adaptec.com>
  7 */
  8
  9#ifndef _LIBSAS_H_
 10#define _LIBSAS_H_
 11
 12
 13#include <linux/timer.h>
 14#include <linux/pci.h>
 15#include <scsi/sas.h>
 16#include <linux/libata.h>
 17#include <linux/list.h>
 18#include <scsi/scsi_device.h>
 19#include <scsi/scsi_cmnd.h>
 20#include <scsi/scsi_transport_sas.h>
 21#include <linux/scatterlist.h>
 22#include <linux/slab.h>
 23
 24struct block_device;
 25
 26enum sas_phy_role {
 27	PHY_ROLE_NONE = 0,
 28	PHY_ROLE_TARGET = 0x40,
 29	PHY_ROLE_INITIATOR = 0x80,
 30};
 31
 32/* The events are mnemonically described in sas_dump.c
 33 * so when updating/adding events here, please also
 34 * update the other file too.
 35 */
 36enum port_event {
 37	PORTE_BYTES_DMAED     = 0U,
 38	PORTE_BROADCAST_RCVD,
 39	PORTE_LINK_RESET_ERR,
 40	PORTE_TIMER_EVENT,
 41	PORTE_HARD_RESET,
 42	PORT_NUM_EVENTS,
 43};
 44
 45enum phy_event {
 46	PHYE_LOSS_OF_SIGNAL   = 0U,
 47	PHYE_OOB_DONE,
 48	PHYE_OOB_ERROR,
 49	PHYE_SPINUP_HOLD,             /* hot plug SATA, no COMWAKE sent */
 50	PHYE_RESUME_TIMEOUT,
 51	PHYE_SHUTDOWN,
 52	PHY_NUM_EVENTS,
 53};
 54
 55enum discover_event {
 56	DISCE_DISCOVER_DOMAIN   = 0U,
 57	DISCE_REVALIDATE_DOMAIN,
 58	DISCE_SUSPEND,
 59	DISCE_RESUME,
 60	DISC_NUM_EVENTS,
 61};
 62
 63/* ---------- Expander Devices ---------- */
 64
 65#define to_dom_device(_obj) container_of(_obj, struct domain_device, dev_obj)
 66#define to_dev_attr(_attr)  container_of(_attr, struct domain_dev_attribute,\
 67					 attr)
 68
 69enum routing_attribute {
 70	DIRECT_ROUTING,
 71	SUBTRACTIVE_ROUTING,
 72	TABLE_ROUTING,
 73};
 74
 75enum ex_phy_state {
 76	PHY_EMPTY,
 77	PHY_VACANT,
 78	PHY_NOT_PRESENT,
 79	PHY_DEVICE_DISCOVERED
 80};
 81
 82struct ex_phy {
 83	int    phy_id;
 84
 85	enum ex_phy_state phy_state;
 86
 87	enum sas_device_type attached_dev_type;
 88	enum sas_linkrate linkrate;
 89
 90	u8   attached_sata_host:1;
 91	u8   attached_sata_dev:1;
 92	u8   attached_sata_ps:1;
 93
 94	enum sas_protocol attached_tproto;
 95	enum sas_protocol attached_iproto;
 96
 97	u8   attached_sas_addr[SAS_ADDR_SIZE];
 98	u8   attached_phy_id;
 99
100	int phy_change_count;
101	enum routing_attribute routing_attr;
102	u8   virtual:1;
103
104	int  last_da_index;
105
106	struct sas_phy *phy;
107	struct sas_port *port;
108};
109
110struct expander_device {
111	struct list_head children;
112
113	int    ex_change_count;
114	u16    max_route_indexes;
115	u8     num_phys;
116
117	u8     t2t_supp:1;
118	u8     configuring:1;
119	u8     conf_route_table:1;
120
121	u8     enclosure_logical_id[8];
122
123	struct ex_phy *ex_phy;
124	struct sas_port *parent_port;
125
126	struct mutex cmd_mutex;
127};
128
129/* ---------- SATA device ---------- */
130#define ATA_RESP_FIS_SIZE 24
131
132struct sata_device {
133	unsigned int class;
134	u8     port_no;        /* port number, if this is a PM (Port) */
135
136	struct ata_port *ap;
137	struct ata_host *ata_host;
138	struct smp_rps_resp rps_resp ____cacheline_aligned; /* report_phy_sata_resp */
139	u8     fis[ATA_RESP_FIS_SIZE];
140};
141
142struct ssp_device {
143	struct list_head eh_list_node; /* pending a user requested eh action */
144	struct scsi_lun reset_lun;
145};
146
147enum {
148	SAS_DEV_GONE,
149	SAS_DEV_FOUND, /* device notified to lldd */
150	SAS_DEV_DESTROY,
151	SAS_DEV_EH_PENDING,
152	SAS_DEV_LU_RESET,
153	SAS_DEV_RESET,
154};
155
156struct domain_device {
157	spinlock_t done_lock;
158	enum sas_device_type dev_type;
159
160	enum sas_linkrate linkrate;
161	enum sas_linkrate min_linkrate;
162	enum sas_linkrate max_linkrate;
163
164	int  pathways;
165
166	struct domain_device *parent;
167	struct list_head siblings; /* devices on the same level */
168	struct asd_sas_port *port;        /* shortcut to root of the tree */
169	struct sas_phy *phy;
170
171	struct list_head dev_list_node;
172	struct list_head disco_list_node; /* awaiting probe or destruct */
173
174	enum sas_protocol    iproto;
175	enum sas_protocol    tproto;
176
177	struct sas_rphy *rphy;
178
179	u8  sas_addr[SAS_ADDR_SIZE];
180	u8  hashed_sas_addr[HASHED_SAS_ADDR_SIZE];
181
182	u8  frame_rcvd[32];
183
184	union {
185		struct expander_device ex_dev;
186		struct sata_device     sata_dev; /* STP & directly attached */
187		struct ssp_device      ssp_dev;
188	};
189
190	void *lldd_dev;
191	unsigned long state;
192	struct kref kref;
193};
194
195struct sas_work {
196	struct list_head drain_node;
197	struct work_struct work;
198};
199
200static inline bool dev_is_expander(enum sas_device_type type)
201{
202	return type == SAS_EDGE_EXPANDER_DEVICE ||
203	       type == SAS_FANOUT_EXPANDER_DEVICE;
204}
205
206static inline bool dev_parent_is_expander(struct domain_device *dev)
207{
208	if (!dev->parent)
209		return false;
210
211	return dev_is_expander(dev->parent->dev_type);
212}
213
214static inline void INIT_SAS_WORK(struct sas_work *sw, void (*fn)(struct work_struct *))
215{
216	INIT_WORK(&sw->work, fn);
217	INIT_LIST_HEAD(&sw->drain_node);
218}
219
220struct sas_discovery_event {
221	struct sas_work work;
222	struct asd_sas_port *port;
223};
224
225static inline struct sas_discovery_event *to_sas_discovery_event(struct work_struct *work)
226{
227	struct sas_discovery_event *ev = container_of(work, typeof(*ev), work.work);
228
229	return ev;
230}
231
232struct sas_discovery {
233	struct sas_discovery_event disc_work[DISC_NUM_EVENTS];
234	unsigned long    pending;
235	u8     fanout_sas_addr[SAS_ADDR_SIZE];
236	u8     eeds_a[SAS_ADDR_SIZE];
237	u8     eeds_b[SAS_ADDR_SIZE];
238	int    max_level;
239};
240
241/* The port struct is Class:RW, driver:RO */
242struct asd_sas_port {
243/* private: */
244	struct sas_discovery disc;
245	struct domain_device *port_dev;
246	spinlock_t dev_list_lock;
247	struct list_head dev_list;
248	struct list_head disco_list;
249	struct list_head destroy_list;
250	struct list_head sas_port_del_list;
251	enum   sas_linkrate linkrate;
252
253	struct sas_work work;
254	int suspended;
255
256/* public: */
257	int id;
258
259	u8               sas_addr[SAS_ADDR_SIZE];
260	u8               attached_sas_addr[SAS_ADDR_SIZE];
261	enum sas_protocol   iproto;
262	enum sas_protocol   tproto;
263
264	enum sas_oob_mode oob_mode;
265
266	spinlock_t       phy_list_lock;
267	struct list_head phy_list;
268	int              num_phys;
269	u32              phy_mask;
270
271	struct sas_ha_struct *ha;
272
273	struct sas_port	*port;
274
275	void *lldd_port;	  /* not touched by the sas class code */
276};
277
278struct asd_sas_event {
279	struct sas_work work;
280	struct asd_sas_phy *phy;
281	int event;
282};
283
284static inline struct asd_sas_event *to_asd_sas_event(struct work_struct *work)
285{
286	struct asd_sas_event *ev = container_of(work, typeof(*ev), work.work);
287
288	return ev;
289}
290
291static inline void INIT_SAS_EVENT(struct asd_sas_event *ev,
292		void (*fn)(struct work_struct *),
293		struct asd_sas_phy *phy, int event)
294{
295	INIT_SAS_WORK(&ev->work, fn);
296	ev->phy = phy;
297	ev->event = event;
298}
299
300#define SAS_PHY_SHUTDOWN_THRES   1024
301
302/* The phy pretty much is controlled by the LLDD.
303 * The class only reads those fields.
304 */
305struct asd_sas_phy {
306/* private: */
307	atomic_t event_nr;
308	int in_shutdown;
309	int error;
310	int suspended;
311
312	struct sas_phy *phy;
313
314/* public: */
315	/* The following are class:RO, driver:R/W */
316	int            enabled;	  /* must be set */
317
318	int            id;	  /* must be set */
319	enum sas_protocol iproto;
320	enum sas_protocol tproto;
321
322	enum sas_phy_role  role;
323	enum sas_oob_mode  oob_mode;
324	enum sas_linkrate linkrate;
325
326	u8   *sas_addr;		  /* must be set */
327	u8   attached_sas_addr[SAS_ADDR_SIZE]; /* class:RO, driver: R/W */
328
329	spinlock_t     frame_rcvd_lock;
330	u8             *frame_rcvd; /* must be set */
331	int            frame_rcvd_size;
332
333	spinlock_t     sas_prim_lock;
334	u32            sas_prim;
335
336	struct list_head port_phy_el; /* driver:RO */
337	struct asd_sas_port      *port; /* Class:RW, driver: RO */
338
339	struct sas_ha_struct *ha; /* may be set; the class sets it anyway */
340
341	void *lldd_phy;		  /* not touched by the sas_class_code */
342};
343
344enum sas_ha_state {
345	SAS_HA_REGISTERED,
346	SAS_HA_DRAINING,
347	SAS_HA_ATA_EH_ACTIVE,
348	SAS_HA_FROZEN,
349	SAS_HA_RESUMING,
350};
351
352struct sas_ha_struct {
353/* private: */
354	struct list_head  defer_q; /* work queued while draining */
355	struct mutex	  drain_mutex;
356	unsigned long	  state;
357	spinlock_t	  lock;
358	int		  eh_active;
359	wait_queue_head_t eh_wait_q;
360	struct list_head  eh_dev_q;
361
362	struct mutex disco_mutex;
363
364	struct Scsi_Host *shost;
365
366/* public: */
367	char *sas_ha_name;
368	struct device *dev;	  /* should be set */
369
370	struct workqueue_struct *event_q;
371	struct workqueue_struct *disco_q;
372
373	u8 *sas_addr;		  /* must be set */
374	u8 hashed_sas_addr[HASHED_SAS_ADDR_SIZE];
375
376	spinlock_t      phy_port_lock;
377	struct asd_sas_phy  **sas_phy; /* array of valid pointers, must be set */
378	struct asd_sas_port **sas_port; /* array of valid pointers, must be set */
379	int             num_phys; /* must be set, gt 0, static */
380
381	int strict_wide_ports; /* both sas_addr and attached_sas_addr must match
382				* their siblings when forming wide ports */
383
384	void *lldd_ha;		  /* not touched by sas class code */
385
386	struct list_head eh_done_q;  /* complete via scsi_eh_flush_done_q */
387	struct list_head eh_ata_q; /* scmds to promote from sas to ata eh */
388
389	int event_thres;
390};
391
392#define SHOST_TO_SAS_HA(_shost) (*(struct sas_ha_struct **)(_shost)->hostdata)
393
394static inline struct domain_device *
395starget_to_domain_dev(struct scsi_target *starget) {
396	return starget->hostdata;
397}
398
399static inline struct domain_device *
400sdev_to_domain_dev(struct scsi_device *sdev) {
401	return starget_to_domain_dev(sdev->sdev_target);
402}
403
404static inline struct ata_device *sas_to_ata_dev(struct domain_device *dev)
405{
406	return &dev->sata_dev.ap->link.device[0];
407}
408
409static inline struct domain_device *
410cmd_to_domain_dev(struct scsi_cmnd *cmd)
411{
412	return sdev_to_domain_dev(cmd->device);
413}
414
415/* Before calling a notify event, LLDD should use this function
416 * when the link is severed (possibly from its tasklet).
417 * The idea is that the Class only reads those, while the LLDD,
418 * can R/W these (thus avoiding a race).
419 */
420static inline void sas_phy_disconnected(struct asd_sas_phy *phy)
421{
422	phy->oob_mode = OOB_NOT_CONNECTED;
423	phy->linkrate = SAS_LINK_RATE_UNKNOWN;
424}
425
426static inline unsigned int to_sas_gpio_od(int device, int bit)
427{
428	return 3 * device + bit;
429}
430
431static inline void sas_put_local_phy(struct sas_phy *phy)
432{
433	put_device(&phy->dev);
434}
435
436#ifdef CONFIG_SCSI_SAS_HOST_SMP
437int try_test_sas_gpio_gp_bit(unsigned int od, u8 *data, u8 index, u8 count);
438#else
439static inline int try_test_sas_gpio_gp_bit(unsigned int od, u8 *data, u8 index, u8 count)
440{
441	return -1;
442}
443#endif
444
445/* ---------- Tasks ---------- */
446/*
447      service_response |  SAS_TASK_COMPLETE  |  SAS_TASK_UNDELIVERED |
448  exec_status          |                     |                       |
449  ---------------------+---------------------+-----------------------+
450       SAM_...         |         X           |                       |
451       DEV_NO_RESPONSE |         X           |           X           |
452       INTERRUPTED     |         X           |                       |
453       QUEUE_FULL      |                     |           X           |
454       DEVICE_UNKNOWN  |                     |           X           |
455       SG_ERR          |                     |           X           |
456  ---------------------+---------------------+-----------------------+
457 */
458
459enum service_response {
460	SAS_TASK_COMPLETE,
461	SAS_TASK_UNDELIVERED = -1,
462};
463
464enum exec_status {
465	/*
466	 * Values 0..0x7f are used to return the SAM_STAT_* codes.  To avoid
467	 * 'case value not in enumerated type' compiler warnings every value
468	 * returned through the exec_status enum needs an alias with the SAS_
469	 * prefix here.
470	 */
471	SAS_SAM_STAT_GOOD = SAM_STAT_GOOD,
472	SAS_SAM_STAT_BUSY = SAM_STAT_BUSY,
473	SAS_SAM_STAT_TASK_ABORTED = SAM_STAT_TASK_ABORTED,
474	SAS_SAM_STAT_CHECK_CONDITION = SAM_STAT_CHECK_CONDITION,
475
476	SAS_DEV_NO_RESPONSE = 0x80,
477	SAS_DATA_UNDERRUN,
478	SAS_DATA_OVERRUN,
479	SAS_INTERRUPTED,
480	SAS_QUEUE_FULL,
481	SAS_DEVICE_UNKNOWN,
482	SAS_OPEN_REJECT,
483	SAS_OPEN_TO,
484	SAS_PROTO_RESPONSE,
485	SAS_PHY_DOWN,
486	SAS_NAK_R_ERR,
487	SAS_PENDING,
488	SAS_ABORTED_TASK,
489};
490
491/* When a task finishes with a response, the LLDD examines the
492 * response:
493 *	- For an ATA task task_status_struct::stat is set to
494 * SAS_PROTO_RESPONSE, and the task_status_struct::buf is set to the
495 * contents of struct ata_task_resp.
496 *	- For SSP tasks, if no data is present or status/TMF response
497 * is valid, task_status_struct::stat is set.  If data is present
498 * (SENSE data), the LLDD copies up to SAS_STATUS_BUF_SIZE, sets
499 * task_status_struct::buf_valid_size, and task_status_struct::stat is
500 * set to SAM_CHECK_COND.
501 *
502 * "buf" has format SCSI Sense for SSP task, or struct ata_task_resp
503 * for ATA task.
504 *
505 * "frame_len" is the total frame length, which could be more or less
506 * than actually copied.
507 *
508 * Tasks ending with response, always set the residual field.
509 */
510struct ata_task_resp {
511	u16  frame_len;
512	u8   ending_fis[ATA_RESP_FIS_SIZE];	  /* dev to host or data-in */
513};
514
515#define SAS_STATUS_BUF_SIZE 96
516
517struct task_status_struct {
518	enum service_response resp;
519	enum exec_status      stat;
520	int  buf_valid_size;
521
522	u8   buf[SAS_STATUS_BUF_SIZE];
523
524	u32  residual;
525	enum sas_open_rej_reason open_rej_reason;
526};
527
528/* ATA and ATAPI task queuable to a SAS LLDD.
529 */
530struct sas_ata_task {
531	struct host_to_dev_fis fis;
532	u8     atapi_packet[16];  /* 0 if not ATAPI task */
533
534	u8     dma_xfer:1;	  /* PIO:0 or DMA:1 */
535	u8     use_ncq:1;
536	u8     return_fis_on_success:1;
537
538	u8     device_control_reg_update:1;
539
540	bool   force_phy;
541	int    force_phy_id;
542};
543
544/* LLDDs rely on these values */
545enum sas_internal_abort {
546	SAS_INTERNAL_ABORT_SINGLE	= 0,
547	SAS_INTERNAL_ABORT_DEV		= 1,
548};
549
550struct sas_internal_abort_task {
551	enum sas_internal_abort type;
552	unsigned int qid;
553	u16 tag;
554};
555
556struct sas_smp_task {
557	struct scatterlist smp_req;
558	struct scatterlist smp_resp;
559};
560
561enum task_attribute {
562	TASK_ATTR_SIMPLE = 0,
563	TASK_ATTR_HOQ    = 1,
564	TASK_ATTR_ORDERED= 2,
565	TASK_ATTR_ACA    = 4,
566};
567
568struct sas_ssp_task {
569	u8     LUN[8];
570	enum   task_attribute task_attr;
571	struct scsi_cmnd *cmd;
572};
573
574struct sas_tmf_task {
575	u8 tmf;
576	u16 tag_of_task_to_be_managed;
577};
578
579struct sas_task {
580	struct domain_device *dev;
581
582	spinlock_t   task_state_lock;
583	unsigned     task_state_flags;
584
585	enum   sas_protocol      task_proto;
586
587	union {
588		struct sas_ata_task ata_task;
589		struct sas_smp_task smp_task;
590		struct sas_ssp_task ssp_task;
591		struct sas_internal_abort_task abort_task;
592	};
593
594	struct scatterlist *scatter;
595	int    num_scatter;
596	u32    total_xfer_len;
597	u8     data_dir:2;	  /* Use PCI_DMA_... */
598
599	struct task_status_struct task_status;
600	void   (*task_done)(struct sas_task *);
601
602	void   *lldd_task;	  /* for use by LLDDs */
603	void   *uldd_task;
604	struct sas_task_slow *slow_task;
605	struct sas_tmf_task *tmf;
606};
607
608struct sas_task_slow {
609	/* standard/extra infrastructure for slow path commands (SMP and
610	 * internal lldd commands
611	 */
612	struct timer_list     timer;
613	struct completion     completion;
614	struct sas_task       *task;
615};
616
617#define SAS_TASK_STATE_PENDING      1
618#define SAS_TASK_STATE_DONE         2
619#define SAS_TASK_STATE_ABORTED      4
620#define SAS_TASK_NEED_DEV_RESET     8
621
622static inline bool sas_is_internal_abort(struct sas_task *task)
623{
624	return task->task_proto == SAS_PROTOCOL_INTERNAL_ABORT;
625}
626
627static inline struct request *sas_task_find_rq(struct sas_task *task)
628{
629	struct scsi_cmnd *scmd;
630
631	if (task->task_proto & SAS_PROTOCOL_STP_ALL) {
632		struct ata_queued_cmd *qc = task->uldd_task;
633
634		scmd = qc ? qc->scsicmd : NULL;
635	} else {
636		scmd = task->uldd_task;
637	}
638
639	if (!scmd)
640		return NULL;
641
642	return scsi_cmd_to_rq(scmd);
643}
644
645struct sas_domain_function_template {
646	/* The class calls these to notify the LLDD of an event. */
647	void (*lldd_port_formed)(struct asd_sas_phy *);
648	void (*lldd_port_deformed)(struct asd_sas_phy *);
649
650	/* The class calls these when a device is found or gone. */
651	int  (*lldd_dev_found)(struct domain_device *);
652	void (*lldd_dev_gone)(struct domain_device *);
653
654	int (*lldd_execute_task)(struct sas_task *, gfp_t gfp_flags);
655
656	/* Task Management Functions. Must be called from process context. */
657	int (*lldd_abort_task)(struct sas_task *);
658	int (*lldd_abort_task_set)(struct domain_device *, u8 *lun);
659	int (*lldd_clear_task_set)(struct domain_device *, u8 *lun);
660	int (*lldd_I_T_nexus_reset)(struct domain_device *);
661	int (*lldd_ata_check_ready)(struct domain_device *);
662	void (*lldd_ata_set_dmamode)(struct domain_device *);
663	int (*lldd_lu_reset)(struct domain_device *, u8 *lun);
664	int (*lldd_query_task)(struct sas_task *);
665
666	/* Special TMF callbacks */
667	void (*lldd_tmf_exec_complete)(struct domain_device *dev);
668	void (*lldd_tmf_aborted)(struct sas_task *task);
669	bool (*lldd_abort_timeout)(struct sas_task *task, void *data);
670
671	/* Port and Adapter management */
672	int (*lldd_clear_nexus_port)(struct asd_sas_port *);
673	int (*lldd_clear_nexus_ha)(struct sas_ha_struct *);
674
675	/* Phy management */
676	int (*lldd_control_phy)(struct asd_sas_phy *, enum phy_func, void *);
677
678	/* GPIO support */
679	int (*lldd_write_gpio)(struct sas_ha_struct *, u8 reg_type,
680			       u8 reg_index, u8 reg_count, u8 *write_data);
681};
682
683extern int sas_register_ha(struct sas_ha_struct *);
684extern int sas_unregister_ha(struct sas_ha_struct *);
685extern void sas_prep_resume_ha(struct sas_ha_struct *sas_ha);
686extern void sas_resume_ha(struct sas_ha_struct *sas_ha);
687extern void sas_resume_ha_no_sync(struct sas_ha_struct *sas_ha);
688extern void sas_suspend_ha(struct sas_ha_struct *sas_ha);
689
690int sas_phy_reset(struct sas_phy *phy, int hard_reset);
691int sas_phy_enable(struct sas_phy *phy, int enable);
692extern int sas_queuecommand(struct Scsi_Host *, struct scsi_cmnd *);
693extern int sas_target_alloc(struct scsi_target *);
694int sas_sdev_configure(struct scsi_device *dev, struct queue_limits *lim);
695extern int sas_change_queue_depth(struct scsi_device *, int new_depth);
696extern int sas_bios_param(struct scsi_device *, struct gendisk *,
697			  sector_t capacity, int *hsc);
698int sas_execute_internal_abort_single(struct domain_device *device,
699				      u16 tag, unsigned int qid,
700				      void *data);
701int sas_execute_internal_abort_dev(struct domain_device *device,
702				   unsigned int qid, void *data);
703extern struct scsi_transport_template *
704sas_domain_attach_transport(struct sas_domain_function_template *);
705extern struct device_attribute dev_attr_phy_event_threshold;
706
707void sas_task_abort(struct sas_task *);
708int sas_eh_abort_handler(struct scsi_cmnd *cmd);
709int sas_eh_device_reset_handler(struct scsi_cmnd *cmd);
710int sas_eh_target_reset_handler(struct scsi_cmnd *cmd);
711
712extern void sas_target_destroy(struct scsi_target *);
713extern int sas_sdev_init(struct scsi_device *);
714extern int sas_ioctl(struct scsi_device *sdev, unsigned int cmd,
715		     void __user *arg);
716extern int sas_drain_work(struct sas_ha_struct *ha);
717
718extern void sas_ssp_task_response(struct device *dev, struct sas_task *task,
719				  struct ssp_response_iu *iu);
720struct sas_phy *sas_get_local_phy(struct domain_device *dev);
721
722int sas_request_addr(struct Scsi_Host *shost, u8 *addr);
723
724int sas_abort_task_set(struct domain_device *dev, u8 *lun);
725int sas_clear_task_set(struct domain_device *dev, u8 *lun);
726int sas_lu_reset(struct domain_device *dev, u8 *lun);
727int sas_query_task(struct sas_task *task, u16 tag);
728int sas_abort_task(struct sas_task *task, u16 tag);
729int sas_find_attached_phy_id(struct expander_device *ex_dev,
730			     struct domain_device *dev);
731
732void sas_notify_port_event(struct asd_sas_phy *phy, enum port_event event,
733			   gfp_t gfp_flags);
734void sas_notify_phy_event(struct asd_sas_phy *phy, enum phy_event event,
735			   gfp_t gfp_flags);
736
737#define __LIBSAS_SHT_BASE						\
738	.module				= THIS_MODULE,			\
739	.name				= DRV_NAME,			\
740	.proc_name			= DRV_NAME,			\
741	.queuecommand			= sas_queuecommand,		\
742	.dma_need_drain			= ata_scsi_dma_need_drain,	\
743	.target_alloc			= sas_target_alloc,		\
744	.change_queue_depth		= sas_change_queue_depth,	\
745	.bios_param			= sas_bios_param,		\
746	.this_id			= -1,				\
747	.eh_device_reset_handler	= sas_eh_device_reset_handler,	\
748	.eh_target_reset_handler	= sas_eh_target_reset_handler,	\
749	.target_destroy			= sas_target_destroy,		\
750	.ioctl				= sas_ioctl,			\
751
752#ifdef CONFIG_COMPAT
753#define _LIBSAS_SHT_BASE		__LIBSAS_SHT_BASE		\
754	.compat_ioctl			= sas_ioctl,
755#else
756#define _LIBSAS_SHT_BASE		__LIBSAS_SHT_BASE
757#endif
758
759#define LIBSAS_SHT_BASE			_LIBSAS_SHT_BASE		\
760	.sdev_configure			= sas_sdev_configure,		\
761	.sdev_init			= sas_sdev_init,		\
762
763#define LIBSAS_SHT_BASE_NO_SLAVE_INIT	_LIBSAS_SHT_BASE
764
765
766#endif /* _SASLIB_H_ */