blob: a466c2cb8955b5f0955a7a194b44475abfce3e31 [file] [log] [blame]
James Bottomley2908d772006-08-29 09:22:51 -05001/*
2 * SAS host prototypes and structures header file
3 *
4 * Copyright (C) 2005 Adaptec, Inc. All rights reserved.
5 * Copyright (C) 2005 Luben Tuikov <luben_tuikov@adaptec.com>
6 *
7 * This file is licensed under GPLv2.
8 *
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License as
11 * published by the Free Software Foundation; either version 2 of the
12 * License, or (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful, but
15 * WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
22 * USA
23 *
24 */
25
26#ifndef _LIBSAS_H_
27#define _LIBSAS_H_
28
29
30#include <linux/timer.h>
31#include <linux/pci.h>
32#include <scsi/sas.h>
Darrick J. Wongfa1c1e82006-08-10 19:19:47 -070033#include <linux/libata.h>
James Bottomley2908d772006-08-29 09:22:51 -050034#include <linux/list.h>
35#include <asm/semaphore.h>
36#include <scsi/scsi_device.h>
37#include <scsi/scsi_cmnd.h>
38#include <scsi/scsi_transport_sas.h>
Adrian Bunk87ae9af2007-10-30 10:35:04 +010039#include <linux/scatterlist.h>
James Bottomley2908d772006-08-29 09:22:51 -050040
41struct block_device;
42
43enum sas_class {
44 SAS,
45 EXPANDER
46};
47
48enum sas_phy_role {
49 PHY_ROLE_NONE = 0,
50 PHY_ROLE_TARGET = 0x40,
51 PHY_ROLE_INITIATOR = 0x80,
52};
53
54enum sas_phy_type {
55 PHY_TYPE_PHYSICAL,
56 PHY_TYPE_VIRTUAL
57};
58
59/* The events are mnemonically described in sas_dump.c
60 * so when updating/adding events here, please also
61 * update the other file too.
62 */
63enum ha_event {
64 HAE_RESET = 0U,
65 HA_NUM_EVENTS = 1,
66};
67
68enum port_event {
69 PORTE_BYTES_DMAED = 0U,
70 PORTE_BROADCAST_RCVD = 1,
71 PORTE_LINK_RESET_ERR = 2,
72 PORTE_TIMER_EVENT = 3,
73 PORTE_HARD_RESET = 4,
74 PORT_NUM_EVENTS = 5,
75};
76
77enum phy_event {
78 PHYE_LOSS_OF_SIGNAL = 0U,
79 PHYE_OOB_DONE = 1,
80 PHYE_OOB_ERROR = 2,
81 PHYE_SPINUP_HOLD = 3, /* hot plug SATA, no COMWAKE sent */
82 PHY_NUM_EVENTS = 4,
83};
84
85enum discover_event {
86 DISCE_DISCOVER_DOMAIN = 0U,
87 DISCE_REVALIDATE_DOMAIN = 1,
88 DISCE_PORT_GONE = 2,
89 DISC_NUM_EVENTS = 3,
90};
91
92/* ---------- Expander Devices ---------- */
93
94#define ETASK 0xFA
95
96#define to_dom_device(_obj) container_of(_obj, struct domain_device, dev_obj)
97#define to_dev_attr(_attr) container_of(_attr, struct domain_dev_attribute,\
98 attr)
99
100enum routing_attribute {
101 DIRECT_ROUTING,
102 SUBTRACTIVE_ROUTING,
103 TABLE_ROUTING,
104};
105
106enum ex_phy_state {
107 PHY_EMPTY,
108 PHY_VACANT,
109 PHY_NOT_PRESENT,
110 PHY_DEVICE_DISCOVERED
111};
112
113struct ex_phy {
114 int phy_id;
115
116 enum ex_phy_state phy_state;
117
118 enum sas_dev_type attached_dev_type;
James Bottomley88edf742006-09-06 17:36:13 -0500119 enum sas_linkrate linkrate;
James Bottomley2908d772006-08-29 09:22:51 -0500120
121 u8 attached_sata_host:1;
122 u8 attached_sata_dev:1;
123 u8 attached_sata_ps:1;
124
125 enum sas_proto attached_tproto;
126 enum sas_proto attached_iproto;
127
128 u8 attached_sas_addr[SAS_ADDR_SIZE];
129 u8 attached_phy_id;
130
131 u8 phy_change_count;
132 enum routing_attribute routing_attr;
133 u8 virtual:1;
134
135 int last_da_index;
136
137 struct sas_phy *phy;
138 struct sas_port *port;
139};
140
141struct expander_device {
142 struct list_head children;
143
144 u16 ex_change_count;
145 u16 max_route_indexes;
146 u8 num_phys;
147 u8 configuring:1;
148 u8 conf_route_table:1;
149 u8 enclosure_logical_id[8];
150
151 struct ex_phy *ex_phy;
152 struct sas_port *parent_port;
153};
154
155/* ---------- SATA device ---------- */
156enum ata_command_set {
157 ATA_COMMAND_SET = 0,
158 ATAPI_COMMAND_SET = 1,
159};
160
161struct sata_device {
162 enum ata_command_set command_set;
163 struct smp_resp rps_resp; /* report_phy_sata_resp */
164 __le16 *identify_device;
165 __le16 *identify_packet_device;
166
167 u8 port_no; /* port number, if this is a PM (Port) */
168 struct list_head children; /* PM Ports if this is a PM */
Darrick J. Wongfa1c1e82006-08-10 19:19:47 -0700169
170 struct ata_port *ap;
171 struct ata_host ata_host;
172 struct ata_taskfile tf;
173 u32 sstatus;
174 u32 serror;
175 u32 scontrol;
James Bottomley2908d772006-08-29 09:22:51 -0500176};
177
178/* ---------- Domain device ---------- */
179struct domain_device {
180 enum sas_dev_type dev_type;
181
James Bottomley88edf742006-09-06 17:36:13 -0500182 enum sas_linkrate linkrate;
183 enum sas_linkrate min_linkrate;
184 enum sas_linkrate max_linkrate;
James Bottomley2908d772006-08-29 09:22:51 -0500185
186 int pathways;
187
188 struct domain_device *parent;
189 struct list_head siblings; /* devices on the same level */
190 struct asd_sas_port *port; /* shortcut to root of the tree */
191
192 struct list_head dev_list_node;
193
194 enum sas_proto iproto;
195 enum sas_proto tproto;
196
197 struct sas_rphy *rphy;
198
199 u8 sas_addr[SAS_ADDR_SIZE];
200 u8 hashed_sas_addr[HASHED_SAS_ADDR_SIZE];
201
202 u8 frame_rcvd[32];
203
204 union {
205 struct expander_device ex_dev;
206 struct sata_device sata_dev; /* STP & directly attached */
207 };
208
209 void *lldd_dev;
210};
211
David Howellsc4028952006-11-22 14:57:56 +0000212struct sas_discovery_event {
213 struct work_struct work;
214 struct asd_sas_port *port;
215};
216
James Bottomley2908d772006-08-29 09:22:51 -0500217struct sas_discovery {
218 spinlock_t disc_event_lock;
David Howellsc4028952006-11-22 14:57:56 +0000219 struct sas_discovery_event disc_work[DISC_NUM_EVENTS];
James Bottomley2908d772006-08-29 09:22:51 -0500220 unsigned long pending;
221 u8 fanout_sas_addr[8];
222 u8 eeds_a[8];
223 u8 eeds_b[8];
224 int max_level;
225};
226
227
228/* The port struct is Class:RW, driver:RO */
229struct asd_sas_port {
230/* private: */
231 struct completion port_gone_completion;
232
233 struct sas_discovery disc;
234 struct domain_device *port_dev;
235 spinlock_t dev_list_lock;
236 struct list_head dev_list;
James Bottomley88edf742006-09-06 17:36:13 -0500237 enum sas_linkrate linkrate;
James Bottomley2908d772006-08-29 09:22:51 -0500238
239 struct sas_phy *phy;
240 struct work_struct work;
241
242/* public: */
243 int id;
244
245 enum sas_class class;
246 u8 sas_addr[SAS_ADDR_SIZE];
247 u8 attached_sas_addr[SAS_ADDR_SIZE];
248 enum sas_proto iproto;
249 enum sas_proto tproto;
250
251 enum sas_oob_mode oob_mode;
252
253 spinlock_t phy_list_lock;
254 struct list_head phy_list;
255 int num_phys;
256 u32 phy_mask;
257
258 struct sas_ha_struct *ha;
259
260 struct sas_port *port;
261
262 void *lldd_port; /* not touched by the sas class code */
263};
264
David Howellsc4028952006-11-22 14:57:56 +0000265struct asd_sas_event {
266 struct work_struct work;
267 struct asd_sas_phy *phy;
268};
269
James Bottomley2908d772006-08-29 09:22:51 -0500270/* The phy pretty much is controlled by the LLDD.
271 * The class only reads those fields.
272 */
273struct asd_sas_phy {
274/* private: */
275 /* protected by ha->event_lock */
David Howellsc4028952006-11-22 14:57:56 +0000276 struct asd_sas_event port_events[PORT_NUM_EVENTS];
277 struct asd_sas_event phy_events[PHY_NUM_EVENTS];
James Bottomley2908d772006-08-29 09:22:51 -0500278
279 unsigned long port_events_pending;
280 unsigned long phy_events_pending;
281
282 int error;
283
284 struct sas_phy *phy;
285
286/* public: */
287 /* The following are class:RO, driver:R/W */
288 int enabled; /* must be set */
289
290 int id; /* must be set */
291 enum sas_class class;
292 enum sas_proto iproto;
293 enum sas_proto tproto;
294
295 enum sas_phy_type type;
296 enum sas_phy_role role;
297 enum sas_oob_mode oob_mode;
James Bottomley88edf742006-09-06 17:36:13 -0500298 enum sas_linkrate linkrate;
James Bottomley2908d772006-08-29 09:22:51 -0500299
300 u8 *sas_addr; /* must be set */
301 u8 attached_sas_addr[SAS_ADDR_SIZE]; /* class:RO, driver: R/W */
302
303 spinlock_t frame_rcvd_lock;
304 u8 *frame_rcvd; /* must be set */
305 int frame_rcvd_size;
306
307 spinlock_t sas_prim_lock;
308 u32 sas_prim;
309
310 struct list_head port_phy_el; /* driver:RO */
311 struct asd_sas_port *port; /* Class:RW, driver: RO */
312
313 struct sas_ha_struct *ha; /* may be set; the class sets it anyway */
314
315 void *lldd_phy; /* not touched by the sas_class_code */
316};
317
318struct scsi_core {
319 struct Scsi_Host *shost;
320
321 spinlock_t task_queue_lock;
322 struct list_head task_queue;
323 int task_queue_size;
324
Christoph Hellwigd7a54e32007-04-26 09:38:01 -0400325 struct task_struct *queue_thread;
James Bottomley2908d772006-08-29 09:22:51 -0500326};
327
David Howellsc4028952006-11-22 14:57:56 +0000328struct sas_ha_event {
329 struct work_struct work;
330 struct sas_ha_struct *ha;
331};
332
Darrick J. Wong6b0efb82007-01-11 14:15:43 -0800333enum sas_ha_state {
334 SAS_HA_REGISTERED,
335 SAS_HA_UNREGISTERED
336};
337
James Bottomley2908d772006-08-29 09:22:51 -0500338struct sas_ha_struct {
339/* private: */
340 spinlock_t event_lock;
David Howellsc4028952006-11-22 14:57:56 +0000341 struct sas_ha_event ha_events[HA_NUM_EVENTS];
James Bottomley2908d772006-08-29 09:22:51 -0500342 unsigned long pending;
343
Darrick J. Wong6b0efb82007-01-11 14:15:43 -0800344 enum sas_ha_state state;
345 spinlock_t state_lock;
346
James Bottomley2908d772006-08-29 09:22:51 -0500347 struct scsi_core core;
348
349/* public: */
350 char *sas_ha_name;
Jeff Garzik1d1bbee2007-07-26 09:28:37 -0400351 struct device *dev; /* should be set */
James Bottomley2908d772006-08-29 09:22:51 -0500352 struct module *lldd_module; /* should be set */
353
354 u8 *sas_addr; /* must be set */
355 u8 hashed_sas_addr[HASHED_SAS_ADDR_SIZE];
356
357 spinlock_t phy_port_lock;
358 struct asd_sas_phy **sas_phy; /* array of valid pointers, must be set */
359 struct asd_sas_port **sas_port; /* array of valid pointers, must be set */
360 int num_phys; /* must be set, gt 0, static */
361
362 /* The class calls this to send a task for execution. */
363 int lldd_max_execute_num;
364 int lldd_queue_size;
365
366 /* LLDD calls these to notify the class of an event. */
367 void (*notify_ha_event)(struct sas_ha_struct *, enum ha_event);
368 void (*notify_port_event)(struct asd_sas_phy *, enum port_event);
369 void (*notify_phy_event)(struct asd_sas_phy *, enum phy_event);
370
371 void *lldd_ha; /* not touched by sas class code */
Darrick J. Wongf4563932006-10-30 15:18:39 -0800372
373 struct list_head eh_done_q;
James Bottomley2908d772006-08-29 09:22:51 -0500374};
375
376#define SHOST_TO_SAS_HA(_shost) (*(struct sas_ha_struct **)(_shost)->hostdata)
377
378static inline struct domain_device *
379starget_to_domain_dev(struct scsi_target *starget) {
380 return starget->hostdata;
381}
382
383static inline struct domain_device *
384sdev_to_domain_dev(struct scsi_device *sdev) {
385 return starget_to_domain_dev(sdev->sdev_target);
386}
387
388static inline struct domain_device *
389cmd_to_domain_dev(struct scsi_cmnd *cmd)
390{
391 return sdev_to_domain_dev(cmd->device);
392}
393
394void sas_hash_addr(u8 *hashed, const u8 *sas_addr);
395
396/* Before calling a notify event, LLDD should use this function
397 * when the link is severed (possibly from its tasklet).
398 * The idea is that the Class only reads those, while the LLDD,
399 * can R/W these (thus avoiding a race).
400 */
401static inline void sas_phy_disconnected(struct asd_sas_phy *phy)
402{
403 phy->oob_mode = OOB_NOT_CONNECTED;
James Bottomley88edf742006-09-06 17:36:13 -0500404 phy->linkrate = SAS_LINK_RATE_UNKNOWN;
James Bottomley2908d772006-08-29 09:22:51 -0500405}
406
407/* ---------- Tasks ---------- */
408/*
409 service_response | SAS_TASK_COMPLETE | SAS_TASK_UNDELIVERED |
410 exec_status | | |
411 ---------------------+---------------------+-----------------------+
412 SAM_... | X | |
413 DEV_NO_RESPONSE | X | X |
414 INTERRUPTED | X | |
415 QUEUE_FULL | | X |
416 DEVICE_UNKNOWN | | X |
417 SG_ERR | | X |
418 ---------------------+---------------------+-----------------------+
419 */
420
421enum service_response {
422 SAS_TASK_COMPLETE,
423 SAS_TASK_UNDELIVERED = -1,
424};
425
426enum exec_status {
427 SAM_GOOD = 0,
428 SAM_CHECK_COND = 2,
429 SAM_COND_MET = 4,
430 SAM_BUSY = 8,
431 SAM_INTERMEDIATE = 0x10,
432 SAM_IM_COND_MET = 0x12,
433 SAM_RESV_CONFLICT= 0x14,
434 SAM_TASK_SET_FULL= 0x28,
435 SAM_ACA_ACTIVE = 0x30,
436 SAM_TASK_ABORTED = 0x40,
437
438 SAS_DEV_NO_RESPONSE = 0x80,
439 SAS_DATA_UNDERRUN,
440 SAS_DATA_OVERRUN,
441 SAS_INTERRUPTED,
442 SAS_QUEUE_FULL,
443 SAS_DEVICE_UNKNOWN,
444 SAS_SG_ERR,
445 SAS_OPEN_REJECT,
446 SAS_OPEN_TO,
447 SAS_PROTO_RESPONSE,
448 SAS_PHY_DOWN,
449 SAS_NAK_R_ERR,
450 SAS_PENDING,
451 SAS_ABORTED_TASK,
452};
453
454/* When a task finishes with a response, the LLDD examines the
455 * response:
456 * - For an ATA task task_status_struct::stat is set to
457 * SAS_PROTO_RESPONSE, and the task_status_struct::buf is set to the
458 * contents of struct ata_task_resp.
459 * - For SSP tasks, if no data is present or status/TMF response
460 * is valid, task_status_struct::stat is set. If data is present
461 * (SENSE data), the LLDD copies up to SAS_STATUS_BUF_SIZE, sets
462 * task_status_struct::buf_valid_size, and task_status_struct::stat is
463 * set to SAM_CHECK_COND.
464 *
465 * "buf" has format SCSI Sense for SSP task, or struct ata_task_resp
466 * for ATA task.
467 *
468 * "frame_len" is the total frame length, which could be more or less
469 * than actually copied.
470 *
471 * Tasks ending with response, always set the residual field.
472 */
473struct ata_task_resp {
474 u16 frame_len;
475 u8 ending_fis[24]; /* dev to host or data-in */
476 u32 sstatus;
477 u32 serror;
478 u32 scontrol;
479 u32 sactive;
480};
481
482#define SAS_STATUS_BUF_SIZE 96
483
484struct task_status_struct {
485 enum service_response resp;
486 enum exec_status stat;
487 int buf_valid_size;
488
489 u8 buf[SAS_STATUS_BUF_SIZE];
490
491 u32 residual;
492 enum sas_open_rej_reason open_rej_reason;
493};
494
495/* ATA and ATAPI task queuable to a SAS LLDD.
496 */
497struct sas_ata_task {
498 struct host_to_dev_fis fis;
499 u8 atapi_packet[16]; /* 0 if not ATAPI task */
500
501 u8 retry_count; /* hardware retry, should be > 0 */
502
503 u8 dma_xfer:1; /* PIO:0 or DMA:1 */
504 u8 use_ncq:1;
505 u8 set_affil_pol:1;
506 u8 stp_affil_pol:1;
507
508 u8 device_control_reg_update:1;
509};
510
511struct sas_smp_task {
512 struct scatterlist smp_req;
513 struct scatterlist smp_resp;
514};
515
516enum task_attribute {
517 TASK_ATTR_SIMPLE = 0,
518 TASK_ATTR_HOQ = 1,
519 TASK_ATTR_ORDERED= 2,
520 TASK_ATTR_ACA = 4,
521};
522
523struct sas_ssp_task {
524 u8 retry_count; /* hardware retry, should be > 0 */
525
526 u8 LUN[8];
527 u8 enable_first_burst:1;
528 enum task_attribute task_attr;
529 u8 task_prio;
530 u8 cdb[16];
531};
532
533struct sas_task {
534 struct domain_device *dev;
535 struct list_head list;
536
537 spinlock_t task_state_lock;
538 unsigned task_state_flags;
539
540 enum sas_proto task_proto;
541
542 /* Used by the discovery code. */
543 struct timer_list timer;
544 struct completion completion;
545
546 union {
547 struct sas_ata_task ata_task;
548 struct sas_smp_task smp_task;
549 struct sas_ssp_task ssp_task;
550 };
551
552 struct scatterlist *scatter;
553 int num_scatter;
554 u32 total_xfer_len;
555 u8 data_dir:2; /* Use PCI_DMA_... */
556
557 struct task_status_struct task_status;
558 void (*task_done)(struct sas_task *);
559
560 void *lldd_task; /* for use by LLDDs */
561 void *uldd_task;
Darrick J. Wong79a5eb62006-10-30 15:18:50 -0800562
563 struct work_struct abort_work;
James Bottomley2908d772006-08-29 09:22:51 -0500564};
565
566
567
Darrick J. Wongf4563932006-10-30 15:18:39 -0800568#define SAS_TASK_STATE_PENDING 1
569#define SAS_TASK_STATE_DONE 2
570#define SAS_TASK_STATE_ABORTED 4
Darrick J. Wong3ebf6922007-01-11 14:15:17 -0800571#define SAS_TASK_NEED_DEV_RESET 8
Darrick J. Wongb218a0d2007-01-11 14:14:55 -0800572#define SAS_TASK_AT_INITIATOR 16
James Bottomley2908d772006-08-29 09:22:51 -0500573
Al Viro3cc27542006-09-25 02:55:40 +0100574static inline struct sas_task *sas_alloc_task(gfp_t flags)
James Bottomley2908d772006-08-29 09:22:51 -0500575{
Christoph Lametere18b8902006-12-06 20:33:20 -0800576 extern struct kmem_cache *sas_task_cache;
Robert P. J. Dayc3762222007-02-10 01:45:03 -0800577 struct sas_task *task = kmem_cache_zalloc(sas_task_cache, flags);
James Bottomley2908d772006-08-29 09:22:51 -0500578
579 if (task) {
James Bottomley2908d772006-08-29 09:22:51 -0500580 INIT_LIST_HEAD(&task->list);
581 spin_lock_init(&task->task_state_lock);
582 task->task_state_flags = SAS_TASK_STATE_PENDING;
583 init_timer(&task->timer);
584 init_completion(&task->completion);
585 }
586
587 return task;
588}
589
590static inline void sas_free_task(struct sas_task *task)
591{
592 if (task) {
Christoph Lametere18b8902006-12-06 20:33:20 -0800593 extern struct kmem_cache *sas_task_cache;
James Bottomley2908d772006-08-29 09:22:51 -0500594 BUG_ON(!list_empty(&task->list));
595 kmem_cache_free(sas_task_cache, task);
596 }
597}
598
599struct sas_domain_function_template {
600 /* The class calls these to notify the LLDD of an event. */
601 void (*lldd_port_formed)(struct asd_sas_phy *);
602 void (*lldd_port_deformed)(struct asd_sas_phy *);
603
604 /* The class calls these when a device is found or gone. */
605 int (*lldd_dev_found)(struct domain_device *);
606 void (*lldd_dev_gone)(struct domain_device *);
607
608 int (*lldd_execute_task)(struct sas_task *, int num,
Al Viro3cc27542006-09-25 02:55:40 +0100609 gfp_t gfp_flags);
James Bottomley2908d772006-08-29 09:22:51 -0500610
611 /* Task Management Functions. Must be called from process context. */
612 int (*lldd_abort_task)(struct sas_task *);
613 int (*lldd_abort_task_set)(struct domain_device *, u8 *lun);
614 int (*lldd_clear_aca)(struct domain_device *, u8 *lun);
615 int (*lldd_clear_task_set)(struct domain_device *, u8 *lun);
616 int (*lldd_I_T_nexus_reset)(struct domain_device *);
617 int (*lldd_lu_reset)(struct domain_device *, u8 *lun);
618 int (*lldd_query_task)(struct sas_task *);
619
620 /* Port and Adapter management */
621 int (*lldd_clear_nexus_port)(struct asd_sas_port *);
622 int (*lldd_clear_nexus_ha)(struct sas_ha_struct *);
623
624 /* Phy management */
James Bottomleya01e70e2006-09-06 19:28:07 -0500625 int (*lldd_control_phy)(struct asd_sas_phy *, enum phy_func, void *);
James Bottomley2908d772006-08-29 09:22:51 -0500626};
627
628extern int sas_register_ha(struct sas_ha_struct *);
629extern int sas_unregister_ha(struct sas_ha_struct *);
630
Darrick J. Wongacbf1672007-01-11 14:14:57 -0800631int sas_set_phy_speed(struct sas_phy *phy,
632 struct sas_phy_linkrates *rates);
633int sas_phy_enable(struct sas_phy *phy, int enabled);
Darrick J. Wongdea22212006-11-07 17:28:55 -0800634int sas_phy_reset(struct sas_phy *phy, int hard_reset);
Darrick J. Wong338ec572006-10-18 14:43:37 -0700635int sas_queue_up(struct sas_task *task);
James Bottomley2908d772006-08-29 09:22:51 -0500636extern int sas_queuecommand(struct scsi_cmnd *,
637 void (*scsi_done)(struct scsi_cmnd *));
638extern int sas_target_alloc(struct scsi_target *);
639extern int sas_slave_alloc(struct scsi_device *);
640extern int sas_slave_configure(struct scsi_device *);
641extern void sas_slave_destroy(struct scsi_device *);
642extern int sas_change_queue_depth(struct scsi_device *, int new_depth);
643extern int sas_change_queue_type(struct scsi_device *, int qt);
644extern int sas_bios_param(struct scsi_device *,
645 struct block_device *,
646 sector_t capacity, int *hsc);
647extern struct scsi_transport_template *
648sas_domain_attach_transport(struct sas_domain_function_template *);
649extern void sas_domain_release_transport(struct scsi_transport_template *);
650
651int sas_discover_root_expander(struct domain_device *);
652
653void sas_init_ex_attr(void);
654
655int sas_ex_revalidate_domain(struct domain_device *);
656
657void sas_unregister_domain_devices(struct asd_sas_port *port);
658void sas_init_disc(struct sas_discovery *disc, struct asd_sas_port *);
659int sas_discover_event(struct asd_sas_port *, enum discover_event ev);
660
661int sas_discover_sata(struct domain_device *);
662int sas_discover_end_dev(struct domain_device *);
663
664void sas_unregister_dev(struct domain_device *);
665
666void sas_init_dev(struct domain_device *);
667
Darrick J. Wong396819f2007-01-11 14:15:20 -0800668void sas_task_abort(struct sas_task *);
669int __sas_task_abort(struct sas_task *);
Darrick J. Wongad689232007-01-26 14:08:52 -0800670int sas_eh_device_reset_handler(struct scsi_cmnd *cmd);
Darrick J. Wonga9344e62007-01-29 23:48:19 -0800671int sas_eh_bus_reset_handler(struct scsi_cmnd *cmd);
Darrick J. Wong79a5eb62006-10-30 15:18:50 -0800672
Darrick J. Wongfa1c1e82006-08-10 19:19:47 -0700673extern void sas_target_destroy(struct scsi_target *);
674extern int sas_slave_alloc(struct scsi_device *);
675extern int sas_ioctl(struct scsi_device *sdev, int cmd, void __user *arg);
676
FUJITA Tomonoriba1fc172007-07-09 12:52:08 +0900677extern int sas_smp_handler(struct Scsi_Host *shost, struct sas_rphy *rphy,
678 struct request *req);
James Bottomley2908d772006-08-29 09:22:51 -0500679#endif /* _SASLIB_H_ */