blob: 9eaa3f05f9544621463c1c172d71c16f40ed42fb [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>
James Bottomley2908d772006-08-29 09:22:51 -050035#include <scsi/scsi_device.h>
36#include <scsi/scsi_cmnd.h>
37#include <scsi/scsi_transport_sas.h>
Adrian Bunk87ae9af2007-10-30 10:35:04 +010038#include <linux/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
James Bottomley2908d772006-08-29 09:22:51 -050093#define to_dom_device(_obj) container_of(_obj, struct domain_device, dev_obj)
94#define to_dev_attr(_attr) container_of(_attr, struct domain_dev_attribute,\
95 attr)
96
97enum routing_attribute {
98 DIRECT_ROUTING,
99 SUBTRACTIVE_ROUTING,
100 TABLE_ROUTING,
101};
102
103enum ex_phy_state {
104 PHY_EMPTY,
105 PHY_VACANT,
106 PHY_NOT_PRESENT,
107 PHY_DEVICE_DISCOVERED
108};
109
110struct ex_phy {
111 int phy_id;
112
113 enum ex_phy_state phy_state;
114
115 enum sas_dev_type attached_dev_type;
James Bottomley88edf742006-09-06 17:36:13 -0500116 enum sas_linkrate linkrate;
James Bottomley2908d772006-08-29 09:22:51 -0500117
118 u8 attached_sata_host:1;
119 u8 attached_sata_dev:1;
120 u8 attached_sata_ps:1;
121
Darrick J. Wong5929faf2007-11-05 11:51:17 -0800122 enum sas_protocol attached_tproto;
123 enum sas_protocol attached_iproto;
James Bottomley2908d772006-08-29 09:22:51 -0500124
125 u8 attached_sas_addr[SAS_ADDR_SIZE];
126 u8 attached_phy_id;
127
128 u8 phy_change_count;
129 enum routing_attribute routing_attr;
130 u8 virtual:1;
131
132 int last_da_index;
133
134 struct sas_phy *phy;
135 struct sas_port *port;
136};
137
138struct expander_device {
139 struct list_head children;
140
141 u16 ex_change_count;
142 u16 max_route_indexes;
143 u8 num_phys;
144 u8 configuring:1;
145 u8 conf_route_table:1;
146 u8 enclosure_logical_id[8];
147
148 struct ex_phy *ex_phy;
149 struct sas_port *parent_port;
150};
151
152/* ---------- SATA device ---------- */
153enum ata_command_set {
154 ATA_COMMAND_SET = 0,
155 ATAPI_COMMAND_SET = 1,
156};
157
158struct sata_device {
159 enum ata_command_set command_set;
160 struct smp_resp rps_resp; /* report_phy_sata_resp */
161 __le16 *identify_device;
162 __le16 *identify_packet_device;
163
164 u8 port_no; /* port number, if this is a PM (Port) */
165 struct list_head children; /* PM Ports if this is a PM */
Darrick J. Wongfa1c1e82006-08-10 19:19:47 -0700166
167 struct ata_port *ap;
168 struct ata_host ata_host;
169 struct ata_taskfile tf;
170 u32 sstatus;
171 u32 serror;
172 u32 scontrol;
James Bottomley2908d772006-08-29 09:22:51 -0500173};
174
175/* ---------- Domain device ---------- */
176struct domain_device {
177 enum sas_dev_type dev_type;
178
James Bottomley88edf742006-09-06 17:36:13 -0500179 enum sas_linkrate linkrate;
180 enum sas_linkrate min_linkrate;
181 enum sas_linkrate max_linkrate;
James Bottomley2908d772006-08-29 09:22:51 -0500182
183 int pathways;
184
185 struct domain_device *parent;
186 struct list_head siblings; /* devices on the same level */
187 struct asd_sas_port *port; /* shortcut to root of the tree */
188
189 struct list_head dev_list_node;
190
Darrick J. Wong5929faf2007-11-05 11:51:17 -0800191 enum sas_protocol iproto;
192 enum sas_protocol tproto;
James Bottomley2908d772006-08-29 09:22:51 -0500193
194 struct sas_rphy *rphy;
195
196 u8 sas_addr[SAS_ADDR_SIZE];
197 u8 hashed_sas_addr[HASHED_SAS_ADDR_SIZE];
198
199 u8 frame_rcvd[32];
200
201 union {
202 struct expander_device ex_dev;
203 struct sata_device sata_dev; /* STP & directly attached */
204 };
205
206 void *lldd_dev;
207};
208
David Howellsc4028952006-11-22 14:57:56 +0000209struct sas_discovery_event {
210 struct work_struct work;
211 struct asd_sas_port *port;
212};
213
James Bottomley2908d772006-08-29 09:22:51 -0500214struct sas_discovery {
215 spinlock_t disc_event_lock;
David Howellsc4028952006-11-22 14:57:56 +0000216 struct sas_discovery_event disc_work[DISC_NUM_EVENTS];
James Bottomley2908d772006-08-29 09:22:51 -0500217 unsigned long pending;
218 u8 fanout_sas_addr[8];
219 u8 eeds_a[8];
220 u8 eeds_b[8];
221 int max_level;
222};
223
224
225/* The port struct is Class:RW, driver:RO */
226struct asd_sas_port {
227/* private: */
228 struct completion port_gone_completion;
229
230 struct sas_discovery disc;
231 struct domain_device *port_dev;
232 spinlock_t dev_list_lock;
233 struct list_head dev_list;
James Bottomley88edf742006-09-06 17:36:13 -0500234 enum sas_linkrate linkrate;
James Bottomley2908d772006-08-29 09:22:51 -0500235
236 struct sas_phy *phy;
237 struct work_struct work;
238
239/* public: */
240 int id;
241
242 enum sas_class class;
243 u8 sas_addr[SAS_ADDR_SIZE];
244 u8 attached_sas_addr[SAS_ADDR_SIZE];
Darrick J. Wong5929faf2007-11-05 11:51:17 -0800245 enum sas_protocol iproto;
246 enum sas_protocol tproto;
James Bottomley2908d772006-08-29 09:22:51 -0500247
248 enum sas_oob_mode oob_mode;
249
250 spinlock_t phy_list_lock;
251 struct list_head phy_list;
252 int num_phys;
253 u32 phy_mask;
254
255 struct sas_ha_struct *ha;
256
257 struct sas_port *port;
258
259 void *lldd_port; /* not touched by the sas class code */
260};
261
David Howellsc4028952006-11-22 14:57:56 +0000262struct asd_sas_event {
263 struct work_struct work;
264 struct asd_sas_phy *phy;
265};
266
James Bottomley2908d772006-08-29 09:22:51 -0500267/* The phy pretty much is controlled by the LLDD.
268 * The class only reads those fields.
269 */
270struct asd_sas_phy {
271/* private: */
272 /* protected by ha->event_lock */
David Howellsc4028952006-11-22 14:57:56 +0000273 struct asd_sas_event port_events[PORT_NUM_EVENTS];
274 struct asd_sas_event phy_events[PHY_NUM_EVENTS];
James Bottomley2908d772006-08-29 09:22:51 -0500275
276 unsigned long port_events_pending;
277 unsigned long phy_events_pending;
278
279 int error;
280
281 struct sas_phy *phy;
282
283/* public: */
284 /* The following are class:RO, driver:R/W */
285 int enabled; /* must be set */
286
287 int id; /* must be set */
288 enum sas_class class;
Darrick J. Wong5929faf2007-11-05 11:51:17 -0800289 enum sas_protocol iproto;
290 enum sas_protocol tproto;
James Bottomley2908d772006-08-29 09:22:51 -0500291
292 enum sas_phy_type type;
293 enum sas_phy_role role;
294 enum sas_oob_mode oob_mode;
James Bottomley88edf742006-09-06 17:36:13 -0500295 enum sas_linkrate linkrate;
James Bottomley2908d772006-08-29 09:22:51 -0500296
297 u8 *sas_addr; /* must be set */
298 u8 attached_sas_addr[SAS_ADDR_SIZE]; /* class:RO, driver: R/W */
299
300 spinlock_t frame_rcvd_lock;
301 u8 *frame_rcvd; /* must be set */
302 int frame_rcvd_size;
303
304 spinlock_t sas_prim_lock;
305 u32 sas_prim;
306
307 struct list_head port_phy_el; /* driver:RO */
308 struct asd_sas_port *port; /* Class:RW, driver: RO */
309
310 struct sas_ha_struct *ha; /* may be set; the class sets it anyway */
311
312 void *lldd_phy; /* not touched by the sas_class_code */
313};
314
315struct scsi_core {
316 struct Scsi_Host *shost;
317
318 spinlock_t task_queue_lock;
319 struct list_head task_queue;
320 int task_queue_size;
321
Christoph Hellwigd7a54e32007-04-26 09:38:01 -0400322 struct task_struct *queue_thread;
James Bottomley2908d772006-08-29 09:22:51 -0500323};
324
David Howellsc4028952006-11-22 14:57:56 +0000325struct sas_ha_event {
326 struct work_struct work;
327 struct sas_ha_struct *ha;
328};
329
Darrick J. Wong6b0efb82007-01-11 14:15:43 -0800330enum sas_ha_state {
331 SAS_HA_REGISTERED,
332 SAS_HA_UNREGISTERED
333};
334
James Bottomley2908d772006-08-29 09:22:51 -0500335struct sas_ha_struct {
336/* private: */
337 spinlock_t event_lock;
David Howellsc4028952006-11-22 14:57:56 +0000338 struct sas_ha_event ha_events[HA_NUM_EVENTS];
James Bottomley2908d772006-08-29 09:22:51 -0500339 unsigned long pending;
340
Darrick J. Wong6b0efb82007-01-11 14:15:43 -0800341 enum sas_ha_state state;
342 spinlock_t state_lock;
343
James Bottomley2908d772006-08-29 09:22:51 -0500344 struct scsi_core core;
345
346/* public: */
347 char *sas_ha_name;
Jeff Garzik1d1bbee2007-07-26 09:28:37 -0400348 struct device *dev; /* should be set */
James Bottomley2908d772006-08-29 09:22:51 -0500349 struct module *lldd_module; /* should be set */
350
351 u8 *sas_addr; /* must be set */
352 u8 hashed_sas_addr[HASHED_SAS_ADDR_SIZE];
353
354 spinlock_t phy_port_lock;
355 struct asd_sas_phy **sas_phy; /* array of valid pointers, must be set */
356 struct asd_sas_port **sas_port; /* array of valid pointers, must be set */
357 int num_phys; /* must be set, gt 0, static */
358
359 /* The class calls this to send a task for execution. */
360 int lldd_max_execute_num;
361 int lldd_queue_size;
362
363 /* LLDD calls these to notify the class of an event. */
364 void (*notify_ha_event)(struct sas_ha_struct *, enum ha_event);
365 void (*notify_port_event)(struct asd_sas_phy *, enum port_event);
366 void (*notify_phy_event)(struct asd_sas_phy *, enum phy_event);
367
368 void *lldd_ha; /* not touched by sas class code */
Darrick J. Wongf4563932006-10-30 15:18:39 -0800369
370 struct list_head eh_done_q;
James Bottomley2908d772006-08-29 09:22:51 -0500371};
372
373#define SHOST_TO_SAS_HA(_shost) (*(struct sas_ha_struct **)(_shost)->hostdata)
374
375static inline struct domain_device *
376starget_to_domain_dev(struct scsi_target *starget) {
377 return starget->hostdata;
378}
379
380static inline struct domain_device *
381sdev_to_domain_dev(struct scsi_device *sdev) {
382 return starget_to_domain_dev(sdev->sdev_target);
383}
384
385static inline struct domain_device *
386cmd_to_domain_dev(struct scsi_cmnd *cmd)
387{
388 return sdev_to_domain_dev(cmd->device);
389}
390
391void sas_hash_addr(u8 *hashed, const u8 *sas_addr);
392
393/* Before calling a notify event, LLDD should use this function
394 * when the link is severed (possibly from its tasklet).
395 * The idea is that the Class only reads those, while the LLDD,
396 * can R/W these (thus avoiding a race).
397 */
398static inline void sas_phy_disconnected(struct asd_sas_phy *phy)
399{
400 phy->oob_mode = OOB_NOT_CONNECTED;
James Bottomley88edf742006-09-06 17:36:13 -0500401 phy->linkrate = SAS_LINK_RATE_UNKNOWN;
James Bottomley2908d772006-08-29 09:22:51 -0500402}
403
404/* ---------- Tasks ---------- */
405/*
406 service_response | SAS_TASK_COMPLETE | SAS_TASK_UNDELIVERED |
407 exec_status | | |
408 ---------------------+---------------------+-----------------------+
409 SAM_... | X | |
410 DEV_NO_RESPONSE | X | X |
411 INTERRUPTED | X | |
412 QUEUE_FULL | | X |
413 DEVICE_UNKNOWN | | X |
414 SG_ERR | | X |
415 ---------------------+---------------------+-----------------------+
416 */
417
418enum service_response {
419 SAS_TASK_COMPLETE,
420 SAS_TASK_UNDELIVERED = -1,
421};
422
423enum exec_status {
424 SAM_GOOD = 0,
425 SAM_CHECK_COND = 2,
426 SAM_COND_MET = 4,
427 SAM_BUSY = 8,
428 SAM_INTERMEDIATE = 0x10,
429 SAM_IM_COND_MET = 0x12,
430 SAM_RESV_CONFLICT= 0x14,
431 SAM_TASK_SET_FULL= 0x28,
432 SAM_ACA_ACTIVE = 0x30,
433 SAM_TASK_ABORTED = 0x40,
434
435 SAS_DEV_NO_RESPONSE = 0x80,
436 SAS_DATA_UNDERRUN,
437 SAS_DATA_OVERRUN,
438 SAS_INTERRUPTED,
439 SAS_QUEUE_FULL,
440 SAS_DEVICE_UNKNOWN,
441 SAS_SG_ERR,
442 SAS_OPEN_REJECT,
443 SAS_OPEN_TO,
444 SAS_PROTO_RESPONSE,
445 SAS_PHY_DOWN,
446 SAS_NAK_R_ERR,
447 SAS_PENDING,
448 SAS_ABORTED_TASK,
449};
450
451/* When a task finishes with a response, the LLDD examines the
452 * response:
453 * - For an ATA task task_status_struct::stat is set to
454 * SAS_PROTO_RESPONSE, and the task_status_struct::buf is set to the
455 * contents of struct ata_task_resp.
456 * - For SSP tasks, if no data is present or status/TMF response
457 * is valid, task_status_struct::stat is set. If data is present
458 * (SENSE data), the LLDD copies up to SAS_STATUS_BUF_SIZE, sets
459 * task_status_struct::buf_valid_size, and task_status_struct::stat is
460 * set to SAM_CHECK_COND.
461 *
462 * "buf" has format SCSI Sense for SSP task, or struct ata_task_resp
463 * for ATA task.
464 *
465 * "frame_len" is the total frame length, which could be more or less
466 * than actually copied.
467 *
468 * Tasks ending with response, always set the residual field.
469 */
470struct ata_task_resp {
471 u16 frame_len;
472 u8 ending_fis[24]; /* dev to host or data-in */
473 u32 sstatus;
474 u32 serror;
475 u32 scontrol;
476 u32 sactive;
477};
478
479#define SAS_STATUS_BUF_SIZE 96
480
481struct task_status_struct {
482 enum service_response resp;
483 enum exec_status stat;
484 int buf_valid_size;
485
486 u8 buf[SAS_STATUS_BUF_SIZE];
487
488 u32 residual;
489 enum sas_open_rej_reason open_rej_reason;
490};
491
492/* ATA and ATAPI task queuable to a SAS LLDD.
493 */
494struct sas_ata_task {
495 struct host_to_dev_fis fis;
496 u8 atapi_packet[16]; /* 0 if not ATAPI task */
497
498 u8 retry_count; /* hardware retry, should be > 0 */
499
500 u8 dma_xfer:1; /* PIO:0 or DMA:1 */
501 u8 use_ncq:1;
502 u8 set_affil_pol:1;
503 u8 stp_affil_pol:1;
504
505 u8 device_control_reg_update:1;
506};
507
508struct sas_smp_task {
509 struct scatterlist smp_req;
510 struct scatterlist smp_resp;
511};
512
513enum task_attribute {
514 TASK_ATTR_SIMPLE = 0,
515 TASK_ATTR_HOQ = 1,
516 TASK_ATTR_ORDERED= 2,
517 TASK_ATTR_ACA = 4,
518};
519
520struct sas_ssp_task {
521 u8 retry_count; /* hardware retry, should be > 0 */
522
523 u8 LUN[8];
524 u8 enable_first_burst:1;
525 enum task_attribute task_attr;
526 u8 task_prio;
527 u8 cdb[16];
528};
529
530struct sas_task {
531 struct domain_device *dev;
532 struct list_head list;
533
534 spinlock_t task_state_lock;
535 unsigned task_state_flags;
536
Darrick J. Wong5929faf2007-11-05 11:51:17 -0800537 enum sas_protocol task_proto;
James Bottomley2908d772006-08-29 09:22:51 -0500538
539 /* Used by the discovery code. */
540 struct timer_list timer;
541 struct completion completion;
542
543 union {
544 struct sas_ata_task ata_task;
545 struct sas_smp_task smp_task;
546 struct sas_ssp_task ssp_task;
547 };
548
549 struct scatterlist *scatter;
550 int num_scatter;
551 u32 total_xfer_len;
552 u8 data_dir:2; /* Use PCI_DMA_... */
553
554 struct task_status_struct task_status;
555 void (*task_done)(struct sas_task *);
556
557 void *lldd_task; /* for use by LLDDs */
558 void *uldd_task;
Darrick J. Wong79a5eb62006-10-30 15:18:50 -0800559
560 struct work_struct abort_work;
James Bottomley2908d772006-08-29 09:22:51 -0500561};
562
Darrick J. Wong8ee24022007-11-05 11:52:14 -0800563extern struct kmem_cache *sas_task_cache;
James Bottomley2908d772006-08-29 09:22:51 -0500564
Darrick J. Wongf4563932006-10-30 15:18:39 -0800565#define SAS_TASK_STATE_PENDING 1
566#define SAS_TASK_STATE_DONE 2
567#define SAS_TASK_STATE_ABORTED 4
Darrick J. Wong3ebf6922007-01-11 14:15:17 -0800568#define SAS_TASK_NEED_DEV_RESET 8
Darrick J. Wongb218a0d2007-01-11 14:14:55 -0800569#define SAS_TASK_AT_INITIATOR 16
James Bottomley2908d772006-08-29 09:22:51 -0500570
Al Viro3cc27542006-09-25 02:55:40 +0100571static inline struct sas_task *sas_alloc_task(gfp_t flags)
James Bottomley2908d772006-08-29 09:22:51 -0500572{
Robert P. J. Dayc3762222007-02-10 01:45:03 -0800573 struct sas_task *task = kmem_cache_zalloc(sas_task_cache, flags);
James Bottomley2908d772006-08-29 09:22:51 -0500574
575 if (task) {
James Bottomley2908d772006-08-29 09:22:51 -0500576 INIT_LIST_HEAD(&task->list);
577 spin_lock_init(&task->task_state_lock);
578 task->task_state_flags = SAS_TASK_STATE_PENDING;
579 init_timer(&task->timer);
580 init_completion(&task->completion);
581 }
582
583 return task;
584}
585
586static inline void sas_free_task(struct sas_task *task)
587{
588 if (task) {
James Bottomley2908d772006-08-29 09:22:51 -0500589 BUG_ON(!list_empty(&task->list));
590 kmem_cache_free(sas_task_cache, task);
591 }
592}
593
594struct sas_domain_function_template {
595 /* The class calls these to notify the LLDD of an event. */
596 void (*lldd_port_formed)(struct asd_sas_phy *);
597 void (*lldd_port_deformed)(struct asd_sas_phy *);
598
599 /* The class calls these when a device is found or gone. */
600 int (*lldd_dev_found)(struct domain_device *);
601 void (*lldd_dev_gone)(struct domain_device *);
602
603 int (*lldd_execute_task)(struct sas_task *, int num,
Al Viro3cc27542006-09-25 02:55:40 +0100604 gfp_t gfp_flags);
James Bottomley2908d772006-08-29 09:22:51 -0500605
606 /* Task Management Functions. Must be called from process context. */
607 int (*lldd_abort_task)(struct sas_task *);
608 int (*lldd_abort_task_set)(struct domain_device *, u8 *lun);
609 int (*lldd_clear_aca)(struct domain_device *, u8 *lun);
610 int (*lldd_clear_task_set)(struct domain_device *, u8 *lun);
611 int (*lldd_I_T_nexus_reset)(struct domain_device *);
612 int (*lldd_lu_reset)(struct domain_device *, u8 *lun);
613 int (*lldd_query_task)(struct sas_task *);
614
615 /* Port and Adapter management */
616 int (*lldd_clear_nexus_port)(struct asd_sas_port *);
617 int (*lldd_clear_nexus_ha)(struct sas_ha_struct *);
618
619 /* Phy management */
James Bottomleya01e70e2006-09-06 19:28:07 -0500620 int (*lldd_control_phy)(struct asd_sas_phy *, enum phy_func, void *);
James Bottomley2908d772006-08-29 09:22:51 -0500621};
622
623extern int sas_register_ha(struct sas_ha_struct *);
624extern int sas_unregister_ha(struct sas_ha_struct *);
625
Darrick J. Wongacbf1672007-01-11 14:14:57 -0800626int sas_set_phy_speed(struct sas_phy *phy,
627 struct sas_phy_linkrates *rates);
628int sas_phy_enable(struct sas_phy *phy, int enabled);
Darrick J. Wongdea22212006-11-07 17:28:55 -0800629int sas_phy_reset(struct sas_phy *phy, int hard_reset);
Darrick J. Wong338ec572006-10-18 14:43:37 -0700630int sas_queue_up(struct sas_task *task);
James Bottomley2908d772006-08-29 09:22:51 -0500631extern int sas_queuecommand(struct scsi_cmnd *,
632 void (*scsi_done)(struct scsi_cmnd *));
633extern int sas_target_alloc(struct scsi_target *);
634extern int sas_slave_alloc(struct scsi_device *);
635extern int sas_slave_configure(struct scsi_device *);
636extern void sas_slave_destroy(struct scsi_device *);
Mike Christiee881a172009-10-15 17:46:39 -0700637extern int sas_change_queue_depth(struct scsi_device *, int new_depth,
638 int reason);
James Bottomley2908d772006-08-29 09:22:51 -0500639extern int sas_change_queue_type(struct scsi_device *, int qt);
640extern int sas_bios_param(struct scsi_device *,
641 struct block_device *,
642 sector_t capacity, int *hsc);
643extern struct scsi_transport_template *
644sas_domain_attach_transport(struct sas_domain_function_template *);
645extern void sas_domain_release_transport(struct scsi_transport_template *);
646
647int sas_discover_root_expander(struct domain_device *);
648
649void sas_init_ex_attr(void);
650
651int sas_ex_revalidate_domain(struct domain_device *);
652
653void sas_unregister_domain_devices(struct asd_sas_port *port);
654void sas_init_disc(struct sas_discovery *disc, struct asd_sas_port *);
655int sas_discover_event(struct asd_sas_port *, enum discover_event ev);
656
657int sas_discover_sata(struct domain_device *);
658int sas_discover_end_dev(struct domain_device *);
659
660void sas_unregister_dev(struct domain_device *);
661
662void sas_init_dev(struct domain_device *);
663
Darrick J. Wong396819f2007-01-11 14:15:20 -0800664void sas_task_abort(struct sas_task *);
665int __sas_task_abort(struct sas_task *);
Darrick J. Wongad689232007-01-26 14:08:52 -0800666int sas_eh_device_reset_handler(struct scsi_cmnd *cmd);
Darrick J. Wonga9344e62007-01-29 23:48:19 -0800667int sas_eh_bus_reset_handler(struct scsi_cmnd *cmd);
Darrick J. Wong79a5eb62006-10-30 15:18:50 -0800668
Darrick J. Wongfa1c1e82006-08-10 19:19:47 -0700669extern void sas_target_destroy(struct scsi_target *);
670extern int sas_slave_alloc(struct scsi_device *);
671extern int sas_ioctl(struct scsi_device *sdev, int cmd, void __user *arg);
672
FUJITA Tomonoriba1fc172007-07-09 12:52:08 +0900673extern int sas_smp_handler(struct Scsi_Host *shost, struct sas_rphy *rphy,
674 struct request *req);
James Bottomley366ca512008-01-18 10:47:01 -0600675
676extern void sas_ssp_task_response(struct device *dev, struct sas_task *task,
677 struct ssp_response_iu *iu);
James Bottomley53195782008-02-23 23:35:44 -0600678struct sas_phy *sas_find_local_phy(struct domain_device *dev);
James Bottomley366ca512008-01-18 10:47:01 -0600679
Darrick J. Wong45e6cdf2008-02-19 10:49:40 -0800680int sas_request_addr(struct Scsi_Host *shost, u8 *addr);
681
James Bottomley2908d772006-08-29 09:22:51 -0500682#endif /* _SASLIB_H_ */