blob: 2e6bdc4e7a0ae1deb116b7d9e96e8e29bbf05b99 [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>
33#include <linux/list.h>
34#include <asm/semaphore.h>
35#include <scsi/scsi_device.h>
36#include <scsi/scsi_cmnd.h>
37#include <scsi/scsi_transport_sas.h>
Dave Jones4195bdb2006-11-27 23:58:11 -050038#include <asm/scatterlist.h>
James Bottomley2908d772006-08-29 09:22:51 -050039
40struct block_device;
41
42enum sas_class {
43 SAS,
44 EXPANDER
45};
46
47enum sas_phy_role {
48 PHY_ROLE_NONE = 0,
49 PHY_ROLE_TARGET = 0x40,
50 PHY_ROLE_INITIATOR = 0x80,
51};
52
53enum sas_phy_type {
54 PHY_TYPE_PHYSICAL,
55 PHY_TYPE_VIRTUAL
56};
57
58/* The events are mnemonically described in sas_dump.c
59 * so when updating/adding events here, please also
60 * update the other file too.
61 */
62enum ha_event {
63 HAE_RESET = 0U,
64 HA_NUM_EVENTS = 1,
65};
66
67enum port_event {
68 PORTE_BYTES_DMAED = 0U,
69 PORTE_BROADCAST_RCVD = 1,
70 PORTE_LINK_RESET_ERR = 2,
71 PORTE_TIMER_EVENT = 3,
72 PORTE_HARD_RESET = 4,
73 PORT_NUM_EVENTS = 5,
74};
75
76enum phy_event {
77 PHYE_LOSS_OF_SIGNAL = 0U,
78 PHYE_OOB_DONE = 1,
79 PHYE_OOB_ERROR = 2,
80 PHYE_SPINUP_HOLD = 3, /* hot plug SATA, no COMWAKE sent */
81 PHY_NUM_EVENTS = 4,
82};
83
84enum discover_event {
85 DISCE_DISCOVER_DOMAIN = 0U,
86 DISCE_REVALIDATE_DOMAIN = 1,
87 DISCE_PORT_GONE = 2,
88 DISC_NUM_EVENTS = 3,
89};
90
91/* ---------- Expander Devices ---------- */
92
93#define ETASK 0xFA
94
95#define to_dom_device(_obj) container_of(_obj, struct domain_device, dev_obj)
96#define to_dev_attr(_attr) container_of(_attr, struct domain_dev_attribute,\
97 attr)
98
99enum routing_attribute {
100 DIRECT_ROUTING,
101 SUBTRACTIVE_ROUTING,
102 TABLE_ROUTING,
103};
104
105enum ex_phy_state {
106 PHY_EMPTY,
107 PHY_VACANT,
108 PHY_NOT_PRESENT,
109 PHY_DEVICE_DISCOVERED
110};
111
112struct ex_phy {
113 int phy_id;
114
115 enum ex_phy_state phy_state;
116
117 enum sas_dev_type attached_dev_type;
James Bottomley88edf742006-09-06 17:36:13 -0500118 enum sas_linkrate linkrate;
James Bottomley2908d772006-08-29 09:22:51 -0500119
120 u8 attached_sata_host:1;
121 u8 attached_sata_dev:1;
122 u8 attached_sata_ps:1;
123
124 enum sas_proto attached_tproto;
125 enum sas_proto attached_iproto;
126
127 u8 attached_sas_addr[SAS_ADDR_SIZE];
128 u8 attached_phy_id;
129
130 u8 phy_change_count;
131 enum routing_attribute routing_attr;
132 u8 virtual:1;
133
134 int last_da_index;
135
136 struct sas_phy *phy;
137 struct sas_port *port;
138};
139
140struct expander_device {
141 struct list_head children;
142
143 u16 ex_change_count;
144 u16 max_route_indexes;
145 u8 num_phys;
146 u8 configuring:1;
147 u8 conf_route_table:1;
148 u8 enclosure_logical_id[8];
149
150 struct ex_phy *ex_phy;
151 struct sas_port *parent_port;
152};
153
154/* ---------- SATA device ---------- */
155enum ata_command_set {
156 ATA_COMMAND_SET = 0,
157 ATAPI_COMMAND_SET = 1,
158};
159
160struct sata_device {
161 enum ata_command_set command_set;
162 struct smp_resp rps_resp; /* report_phy_sata_resp */
163 __le16 *identify_device;
164 __le16 *identify_packet_device;
165
166 u8 port_no; /* port number, if this is a PM (Port) */
167 struct list_head children; /* PM Ports if this is a PM */
168};
169
170/* ---------- Domain device ---------- */
171struct domain_device {
172 enum sas_dev_type dev_type;
173
James Bottomley88edf742006-09-06 17:36:13 -0500174 enum sas_linkrate linkrate;
175 enum sas_linkrate min_linkrate;
176 enum sas_linkrate max_linkrate;
James Bottomley2908d772006-08-29 09:22:51 -0500177
178 int pathways;
179
180 struct domain_device *parent;
181 struct list_head siblings; /* devices on the same level */
182 struct asd_sas_port *port; /* shortcut to root of the tree */
183
184 struct list_head dev_list_node;
185
186 enum sas_proto iproto;
187 enum sas_proto tproto;
188
189 struct sas_rphy *rphy;
190
191 u8 sas_addr[SAS_ADDR_SIZE];
192 u8 hashed_sas_addr[HASHED_SAS_ADDR_SIZE];
193
194 u8 frame_rcvd[32];
195
196 union {
197 struct expander_device ex_dev;
198 struct sata_device sata_dev; /* STP & directly attached */
199 };
200
201 void *lldd_dev;
202};
203
David Howellsc4028952006-11-22 14:57:56 +0000204struct sas_discovery_event {
205 struct work_struct work;
206 struct asd_sas_port *port;
207};
208
James Bottomley2908d772006-08-29 09:22:51 -0500209struct sas_discovery {
210 spinlock_t disc_event_lock;
David Howellsc4028952006-11-22 14:57:56 +0000211 struct sas_discovery_event disc_work[DISC_NUM_EVENTS];
James Bottomley2908d772006-08-29 09:22:51 -0500212 unsigned long pending;
213 u8 fanout_sas_addr[8];
214 u8 eeds_a[8];
215 u8 eeds_b[8];
216 int max_level;
217};
218
219
220/* The port struct is Class:RW, driver:RO */
221struct asd_sas_port {
222/* private: */
223 struct completion port_gone_completion;
224
225 struct sas_discovery disc;
226 struct domain_device *port_dev;
227 spinlock_t dev_list_lock;
228 struct list_head dev_list;
James Bottomley88edf742006-09-06 17:36:13 -0500229 enum sas_linkrate linkrate;
James Bottomley2908d772006-08-29 09:22:51 -0500230
231 struct sas_phy *phy;
232 struct work_struct work;
233
234/* public: */
235 int id;
236
237 enum sas_class class;
238 u8 sas_addr[SAS_ADDR_SIZE];
239 u8 attached_sas_addr[SAS_ADDR_SIZE];
240 enum sas_proto iproto;
241 enum sas_proto tproto;
242
243 enum sas_oob_mode oob_mode;
244
245 spinlock_t phy_list_lock;
246 struct list_head phy_list;
247 int num_phys;
248 u32 phy_mask;
249
250 struct sas_ha_struct *ha;
251
252 struct sas_port *port;
253
254 void *lldd_port; /* not touched by the sas class code */
255};
256
David Howellsc4028952006-11-22 14:57:56 +0000257struct asd_sas_event {
258 struct work_struct work;
259 struct asd_sas_phy *phy;
260};
261
James Bottomley2908d772006-08-29 09:22:51 -0500262/* The phy pretty much is controlled by the LLDD.
263 * The class only reads those fields.
264 */
265struct asd_sas_phy {
266/* private: */
267 /* protected by ha->event_lock */
David Howellsc4028952006-11-22 14:57:56 +0000268 struct asd_sas_event port_events[PORT_NUM_EVENTS];
269 struct asd_sas_event phy_events[PHY_NUM_EVENTS];
James Bottomley2908d772006-08-29 09:22:51 -0500270
271 unsigned long port_events_pending;
272 unsigned long phy_events_pending;
273
274 int error;
275
276 struct sas_phy *phy;
277
278/* public: */
279 /* The following are class:RO, driver:R/W */
280 int enabled; /* must be set */
281
282 int id; /* must be set */
283 enum sas_class class;
284 enum sas_proto iproto;
285 enum sas_proto tproto;
286
287 enum sas_phy_type type;
288 enum sas_phy_role role;
289 enum sas_oob_mode oob_mode;
James Bottomley88edf742006-09-06 17:36:13 -0500290 enum sas_linkrate linkrate;
James Bottomley2908d772006-08-29 09:22:51 -0500291
292 u8 *sas_addr; /* must be set */
293 u8 attached_sas_addr[SAS_ADDR_SIZE]; /* class:RO, driver: R/W */
294
295 spinlock_t frame_rcvd_lock;
296 u8 *frame_rcvd; /* must be set */
297 int frame_rcvd_size;
298
299 spinlock_t sas_prim_lock;
300 u32 sas_prim;
301
302 struct list_head port_phy_el; /* driver:RO */
303 struct asd_sas_port *port; /* Class:RW, driver: RO */
304
305 struct sas_ha_struct *ha; /* may be set; the class sets it anyway */
306
307 void *lldd_phy; /* not touched by the sas_class_code */
308};
309
310struct scsi_core {
311 struct Scsi_Host *shost;
312
313 spinlock_t task_queue_lock;
314 struct list_head task_queue;
315 int task_queue_size;
316
Christoph Hellwigd7a54e32007-04-26 09:38:01 -0400317 struct task_struct *queue_thread;
James Bottomley2908d772006-08-29 09:22:51 -0500318};
319
David Howellsc4028952006-11-22 14:57:56 +0000320struct sas_ha_event {
321 struct work_struct work;
322 struct sas_ha_struct *ha;
323};
324
Darrick J. Wong6b0efb82007-01-11 14:15:43 -0800325enum sas_ha_state {
326 SAS_HA_REGISTERED,
327 SAS_HA_UNREGISTERED
328};
329
James Bottomley2908d772006-08-29 09:22:51 -0500330struct sas_ha_struct {
331/* private: */
332 spinlock_t event_lock;
David Howellsc4028952006-11-22 14:57:56 +0000333 struct sas_ha_event ha_events[HA_NUM_EVENTS];
James Bottomley2908d772006-08-29 09:22:51 -0500334 unsigned long pending;
335
Darrick J. Wong6b0efb82007-01-11 14:15:43 -0800336 enum sas_ha_state state;
337 spinlock_t state_lock;
338
James Bottomley2908d772006-08-29 09:22:51 -0500339 struct scsi_core core;
340
341/* public: */
342 char *sas_ha_name;
343 struct pci_dev *pcidev; /* should be set */
344 struct module *lldd_module; /* should be set */
345
346 u8 *sas_addr; /* must be set */
347 u8 hashed_sas_addr[HASHED_SAS_ADDR_SIZE];
348
349 spinlock_t phy_port_lock;
350 struct asd_sas_phy **sas_phy; /* array of valid pointers, must be set */
351 struct asd_sas_port **sas_port; /* array of valid pointers, must be set */
352 int num_phys; /* must be set, gt 0, static */
353
354 /* The class calls this to send a task for execution. */
355 int lldd_max_execute_num;
356 int lldd_queue_size;
357
358 /* LLDD calls these to notify the class of an event. */
359 void (*notify_ha_event)(struct sas_ha_struct *, enum ha_event);
360 void (*notify_port_event)(struct asd_sas_phy *, enum port_event);
361 void (*notify_phy_event)(struct asd_sas_phy *, enum phy_event);
362
363 void *lldd_ha; /* not touched by sas class code */
Darrick J. Wongf4563932006-10-30 15:18:39 -0800364
365 struct list_head eh_done_q;
James Bottomley2908d772006-08-29 09:22:51 -0500366};
367
368#define SHOST_TO_SAS_HA(_shost) (*(struct sas_ha_struct **)(_shost)->hostdata)
369
370static inline struct domain_device *
371starget_to_domain_dev(struct scsi_target *starget) {
372 return starget->hostdata;
373}
374
375static inline struct domain_device *
376sdev_to_domain_dev(struct scsi_device *sdev) {
377 return starget_to_domain_dev(sdev->sdev_target);
378}
379
380static inline struct domain_device *
381cmd_to_domain_dev(struct scsi_cmnd *cmd)
382{
383 return sdev_to_domain_dev(cmd->device);
384}
385
386void sas_hash_addr(u8 *hashed, const u8 *sas_addr);
387
388/* Before calling a notify event, LLDD should use this function
389 * when the link is severed (possibly from its tasklet).
390 * The idea is that the Class only reads those, while the LLDD,
391 * can R/W these (thus avoiding a race).
392 */
393static inline void sas_phy_disconnected(struct asd_sas_phy *phy)
394{
395 phy->oob_mode = OOB_NOT_CONNECTED;
James Bottomley88edf742006-09-06 17:36:13 -0500396 phy->linkrate = SAS_LINK_RATE_UNKNOWN;
James Bottomley2908d772006-08-29 09:22:51 -0500397}
398
399/* ---------- Tasks ---------- */
400/*
401 service_response | SAS_TASK_COMPLETE | SAS_TASK_UNDELIVERED |
402 exec_status | | |
403 ---------------------+---------------------+-----------------------+
404 SAM_... | X | |
405 DEV_NO_RESPONSE | X | X |
406 INTERRUPTED | X | |
407 QUEUE_FULL | | X |
408 DEVICE_UNKNOWN | | X |
409 SG_ERR | | X |
410 ---------------------+---------------------+-----------------------+
411 */
412
413enum service_response {
414 SAS_TASK_COMPLETE,
415 SAS_TASK_UNDELIVERED = -1,
416};
417
418enum exec_status {
419 SAM_GOOD = 0,
420 SAM_CHECK_COND = 2,
421 SAM_COND_MET = 4,
422 SAM_BUSY = 8,
423 SAM_INTERMEDIATE = 0x10,
424 SAM_IM_COND_MET = 0x12,
425 SAM_RESV_CONFLICT= 0x14,
426 SAM_TASK_SET_FULL= 0x28,
427 SAM_ACA_ACTIVE = 0x30,
428 SAM_TASK_ABORTED = 0x40,
429
430 SAS_DEV_NO_RESPONSE = 0x80,
431 SAS_DATA_UNDERRUN,
432 SAS_DATA_OVERRUN,
433 SAS_INTERRUPTED,
434 SAS_QUEUE_FULL,
435 SAS_DEVICE_UNKNOWN,
436 SAS_SG_ERR,
437 SAS_OPEN_REJECT,
438 SAS_OPEN_TO,
439 SAS_PROTO_RESPONSE,
440 SAS_PHY_DOWN,
441 SAS_NAK_R_ERR,
442 SAS_PENDING,
443 SAS_ABORTED_TASK,
444};
445
446/* When a task finishes with a response, the LLDD examines the
447 * response:
448 * - For an ATA task task_status_struct::stat is set to
449 * SAS_PROTO_RESPONSE, and the task_status_struct::buf is set to the
450 * contents of struct ata_task_resp.
451 * - For SSP tasks, if no data is present or status/TMF response
452 * is valid, task_status_struct::stat is set. If data is present
453 * (SENSE data), the LLDD copies up to SAS_STATUS_BUF_SIZE, sets
454 * task_status_struct::buf_valid_size, and task_status_struct::stat is
455 * set to SAM_CHECK_COND.
456 *
457 * "buf" has format SCSI Sense for SSP task, or struct ata_task_resp
458 * for ATA task.
459 *
460 * "frame_len" is the total frame length, which could be more or less
461 * than actually copied.
462 *
463 * Tasks ending with response, always set the residual field.
464 */
465struct ata_task_resp {
466 u16 frame_len;
467 u8 ending_fis[24]; /* dev to host or data-in */
468 u32 sstatus;
469 u32 serror;
470 u32 scontrol;
471 u32 sactive;
472};
473
474#define SAS_STATUS_BUF_SIZE 96
475
476struct task_status_struct {
477 enum service_response resp;
478 enum exec_status stat;
479 int buf_valid_size;
480
481 u8 buf[SAS_STATUS_BUF_SIZE];
482
483 u32 residual;
484 enum sas_open_rej_reason open_rej_reason;
485};
486
487/* ATA and ATAPI task queuable to a SAS LLDD.
488 */
489struct sas_ata_task {
490 struct host_to_dev_fis fis;
491 u8 atapi_packet[16]; /* 0 if not ATAPI task */
492
493 u8 retry_count; /* hardware retry, should be > 0 */
494
495 u8 dma_xfer:1; /* PIO:0 or DMA:1 */
496 u8 use_ncq:1;
497 u8 set_affil_pol:1;
498 u8 stp_affil_pol:1;
499
500 u8 device_control_reg_update:1;
501};
502
503struct sas_smp_task {
504 struct scatterlist smp_req;
505 struct scatterlist smp_resp;
506};
507
508enum task_attribute {
509 TASK_ATTR_SIMPLE = 0,
510 TASK_ATTR_HOQ = 1,
511 TASK_ATTR_ORDERED= 2,
512 TASK_ATTR_ACA = 4,
513};
514
515struct sas_ssp_task {
516 u8 retry_count; /* hardware retry, should be > 0 */
517
518 u8 LUN[8];
519 u8 enable_first_burst:1;
520 enum task_attribute task_attr;
521 u8 task_prio;
522 u8 cdb[16];
523};
524
525struct sas_task {
526 struct domain_device *dev;
527 struct list_head list;
528
529 spinlock_t task_state_lock;
530 unsigned task_state_flags;
531
532 enum sas_proto task_proto;
533
534 /* Used by the discovery code. */
535 struct timer_list timer;
536 struct completion completion;
537
538 union {
539 struct sas_ata_task ata_task;
540 struct sas_smp_task smp_task;
541 struct sas_ssp_task ssp_task;
542 };
543
544 struct scatterlist *scatter;
545 int num_scatter;
546 u32 total_xfer_len;
547 u8 data_dir:2; /* Use PCI_DMA_... */
548
549 struct task_status_struct task_status;
550 void (*task_done)(struct sas_task *);
551
552 void *lldd_task; /* for use by LLDDs */
553 void *uldd_task;
Darrick J. Wong79a5eb62006-10-30 15:18:50 -0800554
555 struct work_struct abort_work;
James Bottomley2908d772006-08-29 09:22:51 -0500556};
557
558
559
Darrick J. Wongf4563932006-10-30 15:18:39 -0800560#define SAS_TASK_STATE_PENDING 1
561#define SAS_TASK_STATE_DONE 2
562#define SAS_TASK_STATE_ABORTED 4
Darrick J. Wong3ebf6922007-01-11 14:15:17 -0800563#define SAS_TASK_NEED_DEV_RESET 8
Darrick J. Wongb218a0d2007-01-11 14:14:55 -0800564#define SAS_TASK_AT_INITIATOR 16
James Bottomley2908d772006-08-29 09:22:51 -0500565
Al Viro3cc27542006-09-25 02:55:40 +0100566static inline struct sas_task *sas_alloc_task(gfp_t flags)
James Bottomley2908d772006-08-29 09:22:51 -0500567{
Christoph Lametere18b8902006-12-06 20:33:20 -0800568 extern struct kmem_cache *sas_task_cache;
Robert P. J. Dayc3762222007-02-10 01:45:03 -0800569 struct sas_task *task = kmem_cache_zalloc(sas_task_cache, flags);
James Bottomley2908d772006-08-29 09:22:51 -0500570
571 if (task) {
James Bottomley2908d772006-08-29 09:22:51 -0500572 INIT_LIST_HEAD(&task->list);
573 spin_lock_init(&task->task_state_lock);
574 task->task_state_flags = SAS_TASK_STATE_PENDING;
575 init_timer(&task->timer);
576 init_completion(&task->completion);
577 }
578
579 return task;
580}
581
582static inline void sas_free_task(struct sas_task *task)
583{
584 if (task) {
Christoph Lametere18b8902006-12-06 20:33:20 -0800585 extern struct kmem_cache *sas_task_cache;
James Bottomley2908d772006-08-29 09:22:51 -0500586 BUG_ON(!list_empty(&task->list));
587 kmem_cache_free(sas_task_cache, task);
588 }
589}
590
591struct sas_domain_function_template {
592 /* The class calls these to notify the LLDD of an event. */
593 void (*lldd_port_formed)(struct asd_sas_phy *);
594 void (*lldd_port_deformed)(struct asd_sas_phy *);
595
596 /* The class calls these when a device is found or gone. */
597 int (*lldd_dev_found)(struct domain_device *);
598 void (*lldd_dev_gone)(struct domain_device *);
599
600 int (*lldd_execute_task)(struct sas_task *, int num,
Al Viro3cc27542006-09-25 02:55:40 +0100601 gfp_t gfp_flags);
James Bottomley2908d772006-08-29 09:22:51 -0500602
603 /* Task Management Functions. Must be called from process context. */
604 int (*lldd_abort_task)(struct sas_task *);
605 int (*lldd_abort_task_set)(struct domain_device *, u8 *lun);
606 int (*lldd_clear_aca)(struct domain_device *, u8 *lun);
607 int (*lldd_clear_task_set)(struct domain_device *, u8 *lun);
608 int (*lldd_I_T_nexus_reset)(struct domain_device *);
609 int (*lldd_lu_reset)(struct domain_device *, u8 *lun);
610 int (*lldd_query_task)(struct sas_task *);
611
612 /* Port and Adapter management */
613 int (*lldd_clear_nexus_port)(struct asd_sas_port *);
614 int (*lldd_clear_nexus_ha)(struct sas_ha_struct *);
615
616 /* Phy management */
James Bottomleya01e70e2006-09-06 19:28:07 -0500617 int (*lldd_control_phy)(struct asd_sas_phy *, enum phy_func, void *);
James Bottomley2908d772006-08-29 09:22:51 -0500618};
619
620extern int sas_register_ha(struct sas_ha_struct *);
621extern int sas_unregister_ha(struct sas_ha_struct *);
622
Darrick J. Wongacbf1672007-01-11 14:14:57 -0800623int sas_set_phy_speed(struct sas_phy *phy,
624 struct sas_phy_linkrates *rates);
625int sas_phy_enable(struct sas_phy *phy, int enabled);
Darrick J. Wongdea22212006-11-07 17:28:55 -0800626int sas_phy_reset(struct sas_phy *phy, int hard_reset);
James Bottomley2908d772006-08-29 09:22:51 -0500627extern int sas_queuecommand(struct scsi_cmnd *,
628 void (*scsi_done)(struct scsi_cmnd *));
629extern int sas_target_alloc(struct scsi_target *);
630extern int sas_slave_alloc(struct scsi_device *);
631extern int sas_slave_configure(struct scsi_device *);
632extern void sas_slave_destroy(struct scsi_device *);
633extern int sas_change_queue_depth(struct scsi_device *, int new_depth);
634extern int sas_change_queue_type(struct scsi_device *, int qt);
635extern int sas_bios_param(struct scsi_device *,
636 struct block_device *,
637 sector_t capacity, int *hsc);
638extern struct scsi_transport_template *
639sas_domain_attach_transport(struct sas_domain_function_template *);
640extern void sas_domain_release_transport(struct scsi_transport_template *);
641
642int sas_discover_root_expander(struct domain_device *);
643
644void sas_init_ex_attr(void);
645
646int sas_ex_revalidate_domain(struct domain_device *);
647
648void sas_unregister_domain_devices(struct asd_sas_port *port);
649void sas_init_disc(struct sas_discovery *disc, struct asd_sas_port *);
650int sas_discover_event(struct asd_sas_port *, enum discover_event ev);
651
652int sas_discover_sata(struct domain_device *);
653int sas_discover_end_dev(struct domain_device *);
654
655void sas_unregister_dev(struct domain_device *);
656
657void sas_init_dev(struct domain_device *);
658
Darrick J. Wong396819f2007-01-11 14:15:20 -0800659void sas_task_abort(struct sas_task *);
660int __sas_task_abort(struct sas_task *);
Darrick J. Wongad689232007-01-26 14:08:52 -0800661int sas_eh_device_reset_handler(struct scsi_cmnd *cmd);
Darrick J. Wonga9344e62007-01-29 23:48:19 -0800662int sas_eh_bus_reset_handler(struct scsi_cmnd *cmd);
Darrick J. Wong79a5eb62006-10-30 15:18:50 -0800663
James Bottomley2908d772006-08-29 09:22:51 -0500664#endif /* _SASLIB_H_ */