[SCSI] cleanup setting task state in scsi_error_handler()
[deliverable/linux.git] / include / scsi / libsas.h
CommitLineData
2908d778
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1/*
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>
fa1c1e8f 33#include <linux/libata.h>
2908d778 34#include <linux/list.h>
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35#include <scsi/scsi_device.h>
36#include <scsi/scsi_cmnd.h>
37#include <scsi/scsi_transport_sas.h>
87ae9afd 38#include <linux/scatterlist.h>
5a0e3ad6 39#include <linux/slab.h>
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40
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,
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89 DISCE_PROBE = 3,
90 DISCE_DESTRUCT = 4,
91 DISC_NUM_EVENTS = 5,
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92};
93
94/* ---------- Expander Devices ---------- */
95
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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;
88edf746 119 enum sas_linkrate linkrate;
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120
121 u8 attached_sata_host:1;
122 u8 attached_sata_dev:1;
123 u8 attached_sata_ps:1;
124
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125 enum sas_protocol attached_tproto;
126 enum sas_protocol attached_iproto;
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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;
ffaac8f4
LT
147
148 u8 t2t_supp:1;
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149 u8 configuring:1;
150 u8 conf_route_table:1;
ffaac8f4 151
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152 u8 enclosure_logical_id[8];
153
154 struct ex_phy *ex_phy;
155 struct sas_port *parent_port;
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156
157 struct mutex cmd_mutex;
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158};
159
160/* ---------- SATA device ---------- */
161enum ata_command_set {
162 ATA_COMMAND_SET = 0,
163 ATAPI_COMMAND_SET = 1,
164};
165
6ef1b512
DW
166#define ATA_RESP_FIS_SIZE 24
167
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168struct sata_device {
169 enum ata_command_set command_set;
170 struct smp_resp rps_resp; /* report_phy_sata_resp */
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171 u8 port_no; /* port number, if this is a PM (Port) */
172 struct list_head children; /* PM Ports if this is a PM */
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173
174 struct ata_port *ap;
175 struct ata_host ata_host;
6ef1b512 176 u8 fis[ATA_RESP_FIS_SIZE];
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177};
178
e139942d
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179enum {
180 SAS_DEV_GONE,
87c8331f 181 SAS_DEV_DESTROY,
e4a9c373 182 SAS_DEV_EH_PENDING,
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183};
184
2908d778 185struct domain_device {
9095a64a 186 spinlock_t done_lock;
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187 enum sas_dev_type dev_type;
188
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JB
189 enum sas_linkrate linkrate;
190 enum sas_linkrate min_linkrate;
191 enum sas_linkrate max_linkrate;
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192
193 int pathways;
194
195 struct domain_device *parent;
196 struct list_head siblings; /* devices on the same level */
197 struct asd_sas_port *port; /* shortcut to root of the tree */
f41a0c44 198 struct sas_phy *phy;
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199
200 struct list_head dev_list_node;
87c8331f 201 struct list_head disco_list_node; /* awaiting probe or destruct */
2908d778 202
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DW
203 enum sas_protocol iproto;
204 enum sas_protocol tproto;
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205
206 struct sas_rphy *rphy;
207
208 u8 sas_addr[SAS_ADDR_SIZE];
209 u8 hashed_sas_addr[HASHED_SAS_ADDR_SIZE];
210
211 u8 frame_rcvd[32];
212
213 union {
214 struct expander_device ex_dev;
215 struct sata_device sata_dev; /* STP & directly attached */
216 };
217
218 void *lldd_dev;
e139942d 219 unsigned long state;
735f7d2f 220 struct kref kref;
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221};
222
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223struct sas_work {
224 struct list_head drain_node;
c4028958 225 struct work_struct work;
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226};
227
228static inline void INIT_SAS_WORK(struct sas_work *sw, void (*fn)(struct work_struct *))
229{
230 INIT_WORK(&sw->work, fn);
231 INIT_LIST_HEAD(&sw->drain_node);
232}
233
234struct sas_discovery_event {
235 struct sas_work work;
c4028958
DH
236 struct asd_sas_port *port;
237};
238
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239static inline struct sas_discovery_event *to_sas_discovery_event(struct work_struct *work)
240{
241 struct sas_discovery_event *ev = container_of(work, typeof(*ev), work.work);
242
243 return ev;
244}
245
2908d778 246struct sas_discovery {
c4028958 247 struct sas_discovery_event disc_work[DISC_NUM_EVENTS];
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248 unsigned long pending;
249 u8 fanout_sas_addr[8];
250 u8 eeds_a[8];
251 u8 eeds_b[8];
252 int max_level;
253};
254
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255/* The port struct is Class:RW, driver:RO */
256struct asd_sas_port {
257/* private: */
258 struct completion port_gone_completion;
259
260 struct sas_discovery disc;
261 struct domain_device *port_dev;
262 spinlock_t dev_list_lock;
263 struct list_head dev_list;
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264 struct list_head disco_list;
265 struct list_head destroy_list;
88edf746 266 enum sas_linkrate linkrate;
2908d778 267
22b9153f 268 struct sas_work work;
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269
270/* public: */
271 int id;
272
273 enum sas_class class;
274 u8 sas_addr[SAS_ADDR_SIZE];
275 u8 attached_sas_addr[SAS_ADDR_SIZE];
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276 enum sas_protocol iproto;
277 enum sas_protocol tproto;
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278
279 enum sas_oob_mode oob_mode;
280
281 spinlock_t phy_list_lock;
282 struct list_head phy_list;
283 int num_phys;
284 u32 phy_mask;
285
286 struct sas_ha_struct *ha;
287
288 struct sas_port *port;
289
290 void *lldd_port; /* not touched by the sas class code */
291};
292
c4028958 293struct asd_sas_event {
22b9153f 294 struct sas_work work;
c4028958
DH
295 struct asd_sas_phy *phy;
296};
297
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298static inline struct asd_sas_event *to_asd_sas_event(struct work_struct *work)
299{
300 struct asd_sas_event *ev = container_of(work, typeof(*ev), work.work);
301
302 return ev;
303}
304
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305/* The phy pretty much is controlled by the LLDD.
306 * The class only reads those fields.
307 */
308struct asd_sas_phy {
309/* private: */
c4028958
DH
310 struct asd_sas_event port_events[PORT_NUM_EVENTS];
311 struct asd_sas_event phy_events[PHY_NUM_EVENTS];
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312
313 unsigned long port_events_pending;
314 unsigned long phy_events_pending;
315
316 int error;
317
318 struct sas_phy *phy;
319
320/* public: */
321 /* The following are class:RO, driver:R/W */
322 int enabled; /* must be set */
323
324 int id; /* must be set */
325 enum sas_class class;
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326 enum sas_protocol iproto;
327 enum sas_protocol tproto;
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328
329 enum sas_phy_type type;
330 enum sas_phy_role role;
331 enum sas_oob_mode oob_mode;
88edf746 332 enum sas_linkrate linkrate;
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333
334 u8 *sas_addr; /* must be set */
335 u8 attached_sas_addr[SAS_ADDR_SIZE]; /* class:RO, driver: R/W */
336
337 spinlock_t frame_rcvd_lock;
338 u8 *frame_rcvd; /* must be set */
339 int frame_rcvd_size;
340
341 spinlock_t sas_prim_lock;
342 u32 sas_prim;
343
344 struct list_head port_phy_el; /* driver:RO */
345 struct asd_sas_port *port; /* Class:RW, driver: RO */
346
347 struct sas_ha_struct *ha; /* may be set; the class sets it anyway */
348
349 void *lldd_phy; /* not touched by the sas_class_code */
350};
351
352struct scsi_core {
353 struct Scsi_Host *shost;
354
9095a64a 355 struct mutex task_queue_flush;
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356 spinlock_t task_queue_lock;
357 struct list_head task_queue;
358 int task_queue_size;
359
d7a54e30 360 struct task_struct *queue_thread;
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361};
362
c4028958 363struct sas_ha_event {
22b9153f 364 struct sas_work work;
c4028958
DH
365 struct sas_ha_struct *ha;
366};
367
22b9153f
DW
368static inline struct sas_ha_event *to_sas_ha_event(struct work_struct *work)
369{
370 struct sas_ha_event *ev = container_of(work, typeof(*ev), work.work);
371
372 return ev;
373}
374
6b0efb85
DW
375enum sas_ha_state {
376 SAS_HA_REGISTERED,
b1124cd3 377 SAS_HA_DRAINING,
87c8331f 378 SAS_HA_ATA_EH_ACTIVE,
9095a64a 379 SAS_HA_FROZEN,
6b0efb85
DW
380};
381
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382struct sas_ha_struct {
383/* private: */
c4028958 384 struct sas_ha_event ha_events[HA_NUM_EVENTS];
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385 unsigned long pending;
386
b1124cd3
DW
387 struct list_head defer_q; /* work queued while draining */
388 struct mutex drain_mutex;
f8daa6e6 389 unsigned long state;
e4a9c373
DW
390 spinlock_t lock;
391 int eh_active;
6b0efb85 392
87c8331f
DW
393 struct mutex disco_mutex;
394
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395 struct scsi_core core;
396
397/* public: */
398 char *sas_ha_name;
1d1bbee6 399 struct device *dev; /* should be set */
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400 struct module *lldd_module; /* should be set */
401
402 u8 *sas_addr; /* must be set */
403 u8 hashed_sas_addr[HASHED_SAS_ADDR_SIZE];
404
405 spinlock_t phy_port_lock;
406 struct asd_sas_phy **sas_phy; /* array of valid pointers, must be set */
407 struct asd_sas_port **sas_port; /* array of valid pointers, must be set */
408 int num_phys; /* must be set, gt 0, static */
409
410 /* The class calls this to send a task for execution. */
411 int lldd_max_execute_num;
412 int lldd_queue_size;
00f0254e
DW
413 int strict_wide_ports; /* both sas_addr and attached_sas_addr must match
414 * their siblings when forming wide ports */
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415
416 /* LLDD calls these to notify the class of an event. */
417 void (*notify_ha_event)(struct sas_ha_struct *, enum ha_event);
418 void (*notify_port_event)(struct asd_sas_phy *, enum port_event);
419 void (*notify_phy_event)(struct asd_sas_phy *, enum phy_event);
420
421 void *lldd_ha; /* not touched by sas class code */
f456393e 422
3944f509
DW
423 struct list_head eh_done_q; /* complete via scsi_eh_flush_done_q */
424 struct list_head eh_ata_q; /* scmds to promote from sas to ata eh */
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425};
426
427#define SHOST_TO_SAS_HA(_shost) (*(struct sas_ha_struct **)(_shost)->hostdata)
428
429static inline struct domain_device *
430starget_to_domain_dev(struct scsi_target *starget) {
431 return starget->hostdata;
432}
433
434static inline struct domain_device *
435sdev_to_domain_dev(struct scsi_device *sdev) {
436 return starget_to_domain_dev(sdev->sdev_target);
437}
438
b50102d3
DW
439static inline struct ata_device *sas_to_ata_dev(struct domain_device *dev)
440{
441 return &dev->sata_dev.ap->link.device[0];
442}
443
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444static inline struct domain_device *
445cmd_to_domain_dev(struct scsi_cmnd *cmd)
446{
447 return sdev_to_domain_dev(cmd->device);
448}
449
450void sas_hash_addr(u8 *hashed, const u8 *sas_addr);
451
452/* Before calling a notify event, LLDD should use this function
453 * when the link is severed (possibly from its tasklet).
454 * The idea is that the Class only reads those, while the LLDD,
455 * can R/W these (thus avoiding a race).
456 */
457static inline void sas_phy_disconnected(struct asd_sas_phy *phy)
458{
459 phy->oob_mode = OOB_NOT_CONNECTED;
88edf746 460 phy->linkrate = SAS_LINK_RATE_UNKNOWN;
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461}
462
8ec6552f
DW
463static inline unsigned int to_sas_gpio_od(int device, int bit)
464{
465 return 3 * device + bit;
466}
467
f41a0c44
DW
468static inline void sas_put_local_phy(struct sas_phy *phy)
469{
470 put_device(&phy->dev);
471}
472
d962480e 473#ifdef CONFIG_SCSI_SAS_HOST_SMP
8ec6552f 474int try_test_sas_gpio_gp_bit(unsigned int od, u8 *data, u8 index, u8 count);
d962480e
DW
475#else
476static inline int try_test_sas_gpio_gp_bit(unsigned int od, u8 *data, u8 index, u8 count)
477{
478 return -1;
479}
480#endif
8ec6552f 481
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482/* ---------- Tasks ---------- */
483/*
484 service_response | SAS_TASK_COMPLETE | SAS_TASK_UNDELIVERED |
485 exec_status | | |
486 ---------------------+---------------------+-----------------------+
487 SAM_... | X | |
488 DEV_NO_RESPONSE | X | X |
489 INTERRUPTED | X | |
490 QUEUE_FULL | | X |
491 DEVICE_UNKNOWN | | X |
492 SG_ERR | | X |
493 ---------------------+---------------------+-----------------------+
494 */
495
496enum service_response {
497 SAS_TASK_COMPLETE,
498 SAS_TASK_UNDELIVERED = -1,
499};
500
501enum exec_status {
a3a14252
DW
502 /* The SAM_STAT_.. codes fit in the lower 6 bits, alias some of
503 * them here to silence 'case value not in enumerated type' warnings
504 */
505 __SAM_STAT_CHECK_CONDITION = SAM_STAT_CHECK_CONDITION,
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506
507 SAS_DEV_NO_RESPONSE = 0x80,
508 SAS_DATA_UNDERRUN,
509 SAS_DATA_OVERRUN,
510 SAS_INTERRUPTED,
511 SAS_QUEUE_FULL,
512 SAS_DEVICE_UNKNOWN,
513 SAS_SG_ERR,
514 SAS_OPEN_REJECT,
515 SAS_OPEN_TO,
516 SAS_PROTO_RESPONSE,
517 SAS_PHY_DOWN,
518 SAS_NAK_R_ERR,
519 SAS_PENDING,
520 SAS_ABORTED_TASK,
521};
522
523/* When a task finishes with a response, the LLDD examines the
524 * response:
525 * - For an ATA task task_status_struct::stat is set to
526 * SAS_PROTO_RESPONSE, and the task_status_struct::buf is set to the
527 * contents of struct ata_task_resp.
528 * - For SSP tasks, if no data is present or status/TMF response
529 * is valid, task_status_struct::stat is set. If data is present
530 * (SENSE data), the LLDD copies up to SAS_STATUS_BUF_SIZE, sets
531 * task_status_struct::buf_valid_size, and task_status_struct::stat is
532 * set to SAM_CHECK_COND.
533 *
534 * "buf" has format SCSI Sense for SSP task, or struct ata_task_resp
535 * for ATA task.
536 *
537 * "frame_len" is the total frame length, which could be more or less
538 * than actually copied.
539 *
540 * Tasks ending with response, always set the residual field.
541 */
542struct ata_task_resp {
543 u16 frame_len;
6ef1b512 544 u8 ending_fis[ATA_RESP_FIS_SIZE]; /* dev to host or data-in */
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545};
546
547#define SAS_STATUS_BUF_SIZE 96
548
549struct task_status_struct {
550 enum service_response resp;
551 enum exec_status stat;
552 int buf_valid_size;
553
554 u8 buf[SAS_STATUS_BUF_SIZE];
555
556 u32 residual;
557 enum sas_open_rej_reason open_rej_reason;
558};
559
560/* ATA and ATAPI task queuable to a SAS LLDD.
561 */
562struct sas_ata_task {
563 struct host_to_dev_fis fis;
564 u8 atapi_packet[16]; /* 0 if not ATAPI task */
565
566 u8 retry_count; /* hardware retry, should be > 0 */
567
568 u8 dma_xfer:1; /* PIO:0 or DMA:1 */
569 u8 use_ncq:1;
570 u8 set_affil_pol:1;
571 u8 stp_affil_pol:1;
572
573 u8 device_control_reg_update:1;
574};
575
576struct sas_smp_task {
577 struct scatterlist smp_req;
578 struct scatterlist smp_resp;
579};
580
581enum task_attribute {
582 TASK_ATTR_SIMPLE = 0,
583 TASK_ATTR_HOQ = 1,
584 TASK_ATTR_ORDERED= 2,
585 TASK_ATTR_ACA = 4,
586};
587
588struct sas_ssp_task {
589 u8 retry_count; /* hardware retry, should be > 0 */
590
591 u8 LUN[8];
592 u8 enable_first_burst:1;
593 enum task_attribute task_attr;
594 u8 task_prio;
595 u8 cdb[16];
596};
597
598struct sas_task {
599 struct domain_device *dev;
600 struct list_head list;
601
602 spinlock_t task_state_lock;
603 unsigned task_state_flags;
604
5929faf3 605 enum sas_protocol task_proto;
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606
607 /* Used by the discovery code. */
608 struct timer_list timer;
609 struct completion completion;
610
611 union {
612 struct sas_ata_task ata_task;
613 struct sas_smp_task smp_task;
614 struct sas_ssp_task ssp_task;
615 };
616
617 struct scatterlist *scatter;
618 int num_scatter;
619 u32 total_xfer_len;
620 u8 data_dir:2; /* Use PCI_DMA_... */
621
622 struct task_status_struct task_status;
623 void (*task_done)(struct sas_task *);
624
625 void *lldd_task; /* for use by LLDDs */
626 void *uldd_task;
79a5eb60
DW
627
628 struct work_struct abort_work;
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629};
630
f456393e
DW
631#define SAS_TASK_STATE_PENDING 1
632#define SAS_TASK_STATE_DONE 2
633#define SAS_TASK_STATE_ABORTED 4
3ebf6922 634#define SAS_TASK_NEED_DEV_RESET 8
b218a0d8 635#define SAS_TASK_AT_INITIATOR 16
2908d778 636
4fcf812c
DW
637extern struct sas_task *sas_alloc_task(gfp_t flags);
638extern void sas_free_task(struct sas_task *task);
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JB
639
640struct sas_domain_function_template {
641 /* The class calls these to notify the LLDD of an event. */
642 void (*lldd_port_formed)(struct asd_sas_phy *);
643 void (*lldd_port_deformed)(struct asd_sas_phy *);
644
645 /* The class calls these when a device is found or gone. */
646 int (*lldd_dev_found)(struct domain_device *);
647 void (*lldd_dev_gone)(struct domain_device *);
648
649 int (*lldd_execute_task)(struct sas_task *, int num,
3cc27547 650 gfp_t gfp_flags);
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JB
651
652 /* Task Management Functions. Must be called from process context. */
653 int (*lldd_abort_task)(struct sas_task *);
654 int (*lldd_abort_task_set)(struct domain_device *, u8 *lun);
655 int (*lldd_clear_aca)(struct domain_device *, u8 *lun);
656 int (*lldd_clear_task_set)(struct domain_device *, u8 *lun);
657 int (*lldd_I_T_nexus_reset)(struct domain_device *);
36a39947 658 int (*lldd_ata_check_ready)(struct domain_device *);
b91bb296 659 void (*lldd_ata_set_dmamode)(struct domain_device *);
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JB
660 int (*lldd_lu_reset)(struct domain_device *, u8 *lun);
661 int (*lldd_query_task)(struct sas_task *);
662
663 /* Port and Adapter management */
664 int (*lldd_clear_nexus_port)(struct asd_sas_port *);
665 int (*lldd_clear_nexus_ha)(struct sas_ha_struct *);
666
667 /* Phy management */
a01e70e5 668 int (*lldd_control_phy)(struct asd_sas_phy *, enum phy_func, void *);
8ec6552f
DW
669
670 /* GPIO support */
671 int (*lldd_write_gpio)(struct sas_ha_struct *, u8 reg_type,
672 u8 reg_index, u8 reg_count, u8 *write_data);
2908d778
JB
673};
674
675extern int sas_register_ha(struct sas_ha_struct *);
676extern int sas_unregister_ha(struct sas_ha_struct *);
677
acbf167d
DW
678int sas_set_phy_speed(struct sas_phy *phy,
679 struct sas_phy_linkrates *rates);
dea22214 680int sas_phy_reset(struct sas_phy *phy, int hard_reset);
338ec570 681int sas_queue_up(struct sas_task *task);
f281233d 682extern int sas_queuecommand(struct Scsi_Host * ,struct scsi_cmnd *);
2908d778 683extern int sas_target_alloc(struct scsi_target *);
2908d778 684extern int sas_slave_configure(struct scsi_device *);
e881a172
MC
685extern int sas_change_queue_depth(struct scsi_device *, int new_depth,
686 int reason);
2908d778
JB
687extern int sas_change_queue_type(struct scsi_device *, int qt);
688extern int sas_bios_param(struct scsi_device *,
689 struct block_device *,
690 sector_t capacity, int *hsc);
691extern struct scsi_transport_template *
692sas_domain_attach_transport(struct sas_domain_function_template *);
693extern void sas_domain_release_transport(struct scsi_transport_template *);
694
695int sas_discover_root_expander(struct domain_device *);
696
697void sas_init_ex_attr(void);
698
699int sas_ex_revalidate_domain(struct domain_device *);
700
7d05919a 701void sas_unregister_domain_devices(struct asd_sas_port *port, int gone);
2908d778
JB
702void sas_init_disc(struct sas_discovery *disc, struct asd_sas_port *);
703int sas_discover_event(struct asd_sas_port *, enum discover_event ev);
704
705int sas_discover_sata(struct domain_device *);
706int sas_discover_end_dev(struct domain_device *);
707
1a34c064 708void sas_unregister_dev(struct asd_sas_port *port, struct domain_device *);
2908d778
JB
709
710void sas_init_dev(struct domain_device *);
711
396819fb 712void sas_task_abort(struct sas_task *);
ad689233 713int sas_eh_device_reset_handler(struct scsi_cmnd *cmd);
a9344e68 714int sas_eh_bus_reset_handler(struct scsi_cmnd *cmd);
79a5eb60 715
fa1c1e8f
DW
716extern void sas_target_destroy(struct scsi_target *);
717extern int sas_slave_alloc(struct scsi_device *);
718extern int sas_ioctl(struct scsi_device *sdev, int cmd, void __user *arg);
b1124cd3 719extern int sas_drain_work(struct sas_ha_struct *ha);
fa1c1e8f 720
ba1fc175
FT
721extern int sas_smp_handler(struct Scsi_Host *shost, struct sas_rphy *rphy,
722 struct request *req);
366ca51f
JB
723
724extern void sas_ssp_task_response(struct device *dev, struct sas_task *task,
725 struct ssp_response_iu *iu);
f41a0c44 726struct sas_phy *sas_get_local_phy(struct domain_device *dev);
366ca51f 727
45e6cdf4
DW
728int sas_request_addr(struct Scsi_Host *shost, u8 *addr);
729
2908d778 730#endif /* _SASLIB_H_ */
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