Commit | Line | Data |
---|---|---|
2908d778 JB |
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> | |
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> | |
4195bdbe | 38 | #include <asm/scatterlist.h> |
2908d778 JB |
39 | |
40 | struct block_device; | |
41 | ||
42 | enum sas_class { | |
43 | SAS, | |
44 | EXPANDER | |
45 | }; | |
46 | ||
47 | enum sas_phy_role { | |
48 | PHY_ROLE_NONE = 0, | |
49 | PHY_ROLE_TARGET = 0x40, | |
50 | PHY_ROLE_INITIATOR = 0x80, | |
51 | }; | |
52 | ||
53 | enum 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 | */ | |
62 | enum ha_event { | |
63 | HAE_RESET = 0U, | |
64 | HA_NUM_EVENTS = 1, | |
65 | }; | |
66 | ||
67 | enum 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 | ||
76 | enum 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 | ||
84 | enum 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 | ||
99 | enum routing_attribute { | |
100 | DIRECT_ROUTING, | |
101 | SUBTRACTIVE_ROUTING, | |
102 | TABLE_ROUTING, | |
103 | }; | |
104 | ||
105 | enum ex_phy_state { | |
106 | PHY_EMPTY, | |
107 | PHY_VACANT, | |
108 | PHY_NOT_PRESENT, | |
109 | PHY_DEVICE_DISCOVERED | |
110 | }; | |
111 | ||
112 | struct ex_phy { | |
113 | int phy_id; | |
114 | ||
115 | enum ex_phy_state phy_state; | |
116 | ||
117 | enum sas_dev_type attached_dev_type; | |
88edf746 | 118 | enum sas_linkrate linkrate; |
2908d778 JB |
119 | |
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 | ||
140 | struct 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 ---------- */ | |
155 | enum ata_command_set { | |
156 | ATA_COMMAND_SET = 0, | |
157 | ATAPI_COMMAND_SET = 1, | |
158 | }; | |
159 | ||
160 | struct 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 ---------- */ | |
171 | struct domain_device { | |
172 | enum sas_dev_type dev_type; | |
173 | ||
88edf746 JB |
174 | enum sas_linkrate linkrate; |
175 | enum sas_linkrate min_linkrate; | |
176 | enum sas_linkrate max_linkrate; | |
2908d778 JB |
177 | |
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 | ||
c4028958 DH |
204 | struct sas_discovery_event { |
205 | struct work_struct work; | |
206 | struct asd_sas_port *port; | |
207 | }; | |
208 | ||
2908d778 JB |
209 | struct sas_discovery { |
210 | spinlock_t disc_event_lock; | |
c4028958 | 211 | struct sas_discovery_event disc_work[DISC_NUM_EVENTS]; |
2908d778 JB |
212 | 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 */ | |
221 | struct 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; | |
88edf746 | 229 | enum sas_linkrate linkrate; |
2908d778 JB |
230 | |
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 | ||
c4028958 DH |
257 | struct asd_sas_event { |
258 | struct work_struct work; | |
259 | struct asd_sas_phy *phy; | |
260 | }; | |
261 | ||
2908d778 JB |
262 | /* The phy pretty much is controlled by the LLDD. |
263 | * The class only reads those fields. | |
264 | */ | |
265 | struct asd_sas_phy { | |
266 | /* private: */ | |
267 | /* protected by ha->event_lock */ | |
c4028958 DH |
268 | struct asd_sas_event port_events[PORT_NUM_EVENTS]; |
269 | struct asd_sas_event phy_events[PHY_NUM_EVENTS]; | |
2908d778 JB |
270 | |
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; | |
88edf746 | 290 | enum sas_linkrate linkrate; |
2908d778 JB |
291 | |
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 | ||
310 | struct 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 | ||
d7a54e30 | 317 | struct task_struct *queue_thread; |
2908d778 JB |
318 | }; |
319 | ||
c4028958 DH |
320 | struct sas_ha_event { |
321 | struct work_struct work; | |
322 | struct sas_ha_struct *ha; | |
323 | }; | |
324 | ||
6b0efb85 DW |
325 | enum sas_ha_state { |
326 | SAS_HA_REGISTERED, | |
327 | SAS_HA_UNREGISTERED | |
328 | }; | |
329 | ||
2908d778 JB |
330 | struct sas_ha_struct { |
331 | /* private: */ | |
332 | spinlock_t event_lock; | |
c4028958 | 333 | struct sas_ha_event ha_events[HA_NUM_EVENTS]; |
2908d778 JB |
334 | unsigned long pending; |
335 | ||
6b0efb85 DW |
336 | enum sas_ha_state state; |
337 | spinlock_t state_lock; | |
338 | ||
2908d778 JB |
339 | 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 */ | |
f456393e DW |
364 | |
365 | struct list_head eh_done_q; | |
2908d778 JB |
366 | }; |
367 | ||
368 | #define SHOST_TO_SAS_HA(_shost) (*(struct sas_ha_struct **)(_shost)->hostdata) | |
369 | ||
370 | static inline struct domain_device * | |
371 | starget_to_domain_dev(struct scsi_target *starget) { | |
372 | return starget->hostdata; | |
373 | } | |
374 | ||
375 | static inline struct domain_device * | |
376 | sdev_to_domain_dev(struct scsi_device *sdev) { | |
377 | return starget_to_domain_dev(sdev->sdev_target); | |
378 | } | |
379 | ||
380 | static inline struct domain_device * | |
381 | cmd_to_domain_dev(struct scsi_cmnd *cmd) | |
382 | { | |
383 | return sdev_to_domain_dev(cmd->device); | |
384 | } | |
385 | ||
386 | void 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 | */ | |
393 | static inline void sas_phy_disconnected(struct asd_sas_phy *phy) | |
394 | { | |
395 | phy->oob_mode = OOB_NOT_CONNECTED; | |
88edf746 | 396 | phy->linkrate = SAS_LINK_RATE_UNKNOWN; |
2908d778 JB |
397 | } |
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 | ||
413 | enum service_response { | |
414 | SAS_TASK_COMPLETE, | |
415 | SAS_TASK_UNDELIVERED = -1, | |
416 | }; | |
417 | ||
418 | enum 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 | */ | |
465 | struct 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 | ||
476 | struct 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 | */ | |
489 | struct 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 | ||
503 | struct sas_smp_task { | |
504 | struct scatterlist smp_req; | |
505 | struct scatterlist smp_resp; | |
506 | }; | |
507 | ||
508 | enum task_attribute { | |
509 | TASK_ATTR_SIMPLE = 0, | |
510 | TASK_ATTR_HOQ = 1, | |
511 | TASK_ATTR_ORDERED= 2, | |
512 | TASK_ATTR_ACA = 4, | |
513 | }; | |
514 | ||
515 | struct 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 | ||
525 | struct 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; | |
79a5eb60 DW |
554 | |
555 | struct work_struct abort_work; | |
2908d778 JB |
556 | }; |
557 | ||
558 | ||
559 | ||
f456393e DW |
560 | #define SAS_TASK_STATE_PENDING 1 |
561 | #define SAS_TASK_STATE_DONE 2 | |
562 | #define SAS_TASK_STATE_ABORTED 4 | |
3ebf6922 | 563 | #define SAS_TASK_NEED_DEV_RESET 8 |
b218a0d8 | 564 | #define SAS_TASK_AT_INITIATOR 16 |
2908d778 | 565 | |
3cc27547 | 566 | static inline struct sas_task *sas_alloc_task(gfp_t flags) |
2908d778 | 567 | { |
e18b890b | 568 | extern struct kmem_cache *sas_task_cache; |
c3762229 | 569 | struct sas_task *task = kmem_cache_zalloc(sas_task_cache, flags); |
2908d778 JB |
570 | |
571 | if (task) { | |
2908d778 JB |
572 | 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 | ||
582 | static inline void sas_free_task(struct sas_task *task) | |
583 | { | |
584 | if (task) { | |
e18b890b | 585 | extern struct kmem_cache *sas_task_cache; |
2908d778 JB |
586 | BUG_ON(!list_empty(&task->list)); |
587 | kmem_cache_free(sas_task_cache, task); | |
588 | } | |
589 | } | |
590 | ||
591 | struct 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, | |
3cc27547 | 601 | gfp_t gfp_flags); |
2908d778 JB |
602 | |
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 */ | |
a01e70e5 | 617 | int (*lldd_control_phy)(struct asd_sas_phy *, enum phy_func, void *); |
2908d778 JB |
618 | }; |
619 | ||
620 | extern int sas_register_ha(struct sas_ha_struct *); | |
621 | extern int sas_unregister_ha(struct sas_ha_struct *); | |
622 | ||
acbf167d DW |
623 | int sas_set_phy_speed(struct sas_phy *phy, |
624 | struct sas_phy_linkrates *rates); | |
625 | int sas_phy_enable(struct sas_phy *phy, int enabled); | |
dea22214 | 626 | int sas_phy_reset(struct sas_phy *phy, int hard_reset); |
2908d778 JB |
627 | extern int sas_queuecommand(struct scsi_cmnd *, |
628 | void (*scsi_done)(struct scsi_cmnd *)); | |
629 | extern int sas_target_alloc(struct scsi_target *); | |
630 | extern int sas_slave_alloc(struct scsi_device *); | |
631 | extern int sas_slave_configure(struct scsi_device *); | |
632 | extern void sas_slave_destroy(struct scsi_device *); | |
633 | extern int sas_change_queue_depth(struct scsi_device *, int new_depth); | |
634 | extern int sas_change_queue_type(struct scsi_device *, int qt); | |
635 | extern int sas_bios_param(struct scsi_device *, | |
636 | struct block_device *, | |
637 | sector_t capacity, int *hsc); | |
638 | extern struct scsi_transport_template * | |
639 | sas_domain_attach_transport(struct sas_domain_function_template *); | |
640 | extern void sas_domain_release_transport(struct scsi_transport_template *); | |
641 | ||
642 | int sas_discover_root_expander(struct domain_device *); | |
643 | ||
644 | void sas_init_ex_attr(void); | |
645 | ||
646 | int sas_ex_revalidate_domain(struct domain_device *); | |
647 | ||
648 | void sas_unregister_domain_devices(struct asd_sas_port *port); | |
649 | void sas_init_disc(struct sas_discovery *disc, struct asd_sas_port *); | |
650 | int sas_discover_event(struct asd_sas_port *, enum discover_event ev); | |
651 | ||
652 | int sas_discover_sata(struct domain_device *); | |
653 | int sas_discover_end_dev(struct domain_device *); | |
654 | ||
655 | void sas_unregister_dev(struct domain_device *); | |
656 | ||
657 | void sas_init_dev(struct domain_device *); | |
658 | ||
396819fb DW |
659 | void sas_task_abort(struct sas_task *); |
660 | int __sas_task_abort(struct sas_task *); | |
ad689233 | 661 | int sas_eh_device_reset_handler(struct scsi_cmnd *cmd); |
a9344e68 | 662 | int sas_eh_bus_reset_handler(struct scsi_cmnd *cmd); |
79a5eb60 | 663 | |
2908d778 | 664 | #endif /* _SASLIB_H_ */ |