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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> | |
fa1c1e8f | 33 | #include <linux/libata.h> |
2908d778 JB |
34 | #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> | |
4195bdbe | 39 | #include <asm/scatterlist.h> |
2908d778 JB |
40 | |
41 | struct block_device; | |
42 | ||
43 | enum sas_class { | |
44 | SAS, | |
45 | EXPANDER | |
46 | }; | |
47 | ||
48 | enum sas_phy_role { | |
49 | PHY_ROLE_NONE = 0, | |
50 | PHY_ROLE_TARGET = 0x40, | |
51 | PHY_ROLE_INITIATOR = 0x80, | |
52 | }; | |
53 | ||
54 | enum 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 | */ | |
63 | enum ha_event { | |
64 | HAE_RESET = 0U, | |
65 | HA_NUM_EVENTS = 1, | |
66 | }; | |
67 | ||
68 | enum 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 | ||
77 | enum 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 | ||
85 | enum 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 | ||
100 | enum routing_attribute { | |
101 | DIRECT_ROUTING, | |
102 | SUBTRACTIVE_ROUTING, | |
103 | TABLE_ROUTING, | |
104 | }; | |
105 | ||
106 | enum ex_phy_state { | |
107 | PHY_EMPTY, | |
108 | PHY_VACANT, | |
109 | PHY_NOT_PRESENT, | |
110 | PHY_DEVICE_DISCOVERED | |
111 | }; | |
112 | ||
113 | struct 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; |
2908d778 JB |
120 | |
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 | ||
141 | struct 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 ---------- */ | |
156 | enum ata_command_set { | |
157 | ATA_COMMAND_SET = 0, | |
158 | ATAPI_COMMAND_SET = 1, | |
159 | }; | |
160 | ||
161 | struct 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 */ | |
fa1c1e8f DW |
169 | |
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; | |
2908d778 JB |
176 | }; |
177 | ||
178 | /* ---------- Domain device ---------- */ | |
179 | struct domain_device { | |
180 | enum sas_dev_type dev_type; | |
181 | ||
88edf746 JB |
182 | enum sas_linkrate linkrate; |
183 | enum sas_linkrate min_linkrate; | |
184 | enum sas_linkrate max_linkrate; | |
2908d778 JB |
185 | |
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 | ||
c4028958 DH |
212 | struct sas_discovery_event { |
213 | struct work_struct work; | |
214 | struct asd_sas_port *port; | |
215 | }; | |
216 | ||
2908d778 JB |
217 | struct sas_discovery { |
218 | spinlock_t disc_event_lock; | |
c4028958 | 219 | struct sas_discovery_event disc_work[DISC_NUM_EVENTS]; |
2908d778 JB |
220 | 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 */ | |
229 | struct 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; | |
88edf746 | 237 | enum sas_linkrate linkrate; |
2908d778 JB |
238 | |
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 | ||
c4028958 DH |
265 | struct asd_sas_event { |
266 | struct work_struct work; | |
267 | struct asd_sas_phy *phy; | |
268 | }; | |
269 | ||
2908d778 JB |
270 | /* The phy pretty much is controlled by the LLDD. |
271 | * The class only reads those fields. | |
272 | */ | |
273 | struct asd_sas_phy { | |
274 | /* private: */ | |
275 | /* protected by ha->event_lock */ | |
c4028958 DH |
276 | struct asd_sas_event port_events[PORT_NUM_EVENTS]; |
277 | struct asd_sas_event phy_events[PHY_NUM_EVENTS]; | |
2908d778 JB |
278 | |
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; | |
88edf746 | 298 | enum sas_linkrate linkrate; |
2908d778 JB |
299 | |
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 | ||
318 | struct 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 | ||
d7a54e30 | 325 | struct task_struct *queue_thread; |
2908d778 JB |
326 | }; |
327 | ||
c4028958 DH |
328 | struct sas_ha_event { |
329 | struct work_struct work; | |
330 | struct sas_ha_struct *ha; | |
331 | }; | |
332 | ||
6b0efb85 DW |
333 | enum sas_ha_state { |
334 | SAS_HA_REGISTERED, | |
335 | SAS_HA_UNREGISTERED | |
336 | }; | |
337 | ||
2908d778 JB |
338 | struct sas_ha_struct { |
339 | /* private: */ | |
340 | spinlock_t event_lock; | |
c4028958 | 341 | struct sas_ha_event ha_events[HA_NUM_EVENTS]; |
2908d778 JB |
342 | unsigned long pending; |
343 | ||
6b0efb85 DW |
344 | enum sas_ha_state state; |
345 | spinlock_t state_lock; | |
346 | ||
2908d778 JB |
347 | struct scsi_core core; |
348 | ||
349 | /* public: */ | |
350 | char *sas_ha_name; | |
1d1bbee6 | 351 | struct device *dev; /* should be set */ |
2908d778 JB |
352 | 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 */ | |
f456393e DW |
372 | |
373 | struct list_head eh_done_q; | |
2908d778 JB |
374 | }; |
375 | ||
376 | #define SHOST_TO_SAS_HA(_shost) (*(struct sas_ha_struct **)(_shost)->hostdata) | |
377 | ||
378 | static inline struct domain_device * | |
379 | starget_to_domain_dev(struct scsi_target *starget) { | |
380 | return starget->hostdata; | |
381 | } | |
382 | ||
383 | static inline struct domain_device * | |
384 | sdev_to_domain_dev(struct scsi_device *sdev) { | |
385 | return starget_to_domain_dev(sdev->sdev_target); | |
386 | } | |
387 | ||
388 | static inline struct domain_device * | |
389 | cmd_to_domain_dev(struct scsi_cmnd *cmd) | |
390 | { | |
391 | return sdev_to_domain_dev(cmd->device); | |
392 | } | |
393 | ||
394 | void 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 | */ | |
401 | static inline void sas_phy_disconnected(struct asd_sas_phy *phy) | |
402 | { | |
403 | phy->oob_mode = OOB_NOT_CONNECTED; | |
88edf746 | 404 | phy->linkrate = SAS_LINK_RATE_UNKNOWN; |
2908d778 JB |
405 | } |
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 | ||
421 | enum service_response { | |
422 | SAS_TASK_COMPLETE, | |
423 | SAS_TASK_UNDELIVERED = -1, | |
424 | }; | |
425 | ||
426 | enum 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 | */ | |
473 | struct 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 | ||
484 | struct 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 | */ | |
497 | struct 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 | ||
511 | struct sas_smp_task { | |
512 | struct scatterlist smp_req; | |
513 | struct scatterlist smp_resp; | |
514 | }; | |
515 | ||
516 | enum task_attribute { | |
517 | TASK_ATTR_SIMPLE = 0, | |
518 | TASK_ATTR_HOQ = 1, | |
519 | TASK_ATTR_ORDERED= 2, | |
520 | TASK_ATTR_ACA = 4, | |
521 | }; | |
522 | ||
523 | struct 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 | ||
533 | struct 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; | |
79a5eb60 DW |
562 | |
563 | struct work_struct abort_work; | |
2908d778 JB |
564 | }; |
565 | ||
566 | ||
567 | ||
f456393e DW |
568 | #define SAS_TASK_STATE_PENDING 1 |
569 | #define SAS_TASK_STATE_DONE 2 | |
570 | #define SAS_TASK_STATE_ABORTED 4 | |
3ebf6922 | 571 | #define SAS_TASK_NEED_DEV_RESET 8 |
b218a0d8 | 572 | #define SAS_TASK_AT_INITIATOR 16 |
2908d778 | 573 | |
3cc27547 | 574 | static inline struct sas_task *sas_alloc_task(gfp_t flags) |
2908d778 | 575 | { |
e18b890b | 576 | extern struct kmem_cache *sas_task_cache; |
c3762229 | 577 | struct sas_task *task = kmem_cache_zalloc(sas_task_cache, flags); |
2908d778 JB |
578 | |
579 | if (task) { | |
2908d778 JB |
580 | 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 | ||
590 | static inline void sas_free_task(struct sas_task *task) | |
591 | { | |
592 | if (task) { | |
e18b890b | 593 | extern struct kmem_cache *sas_task_cache; |
2908d778 JB |
594 | BUG_ON(!list_empty(&task->list)); |
595 | kmem_cache_free(sas_task_cache, task); | |
596 | } | |
597 | } | |
598 | ||
599 | struct 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, | |
3cc27547 | 609 | gfp_t gfp_flags); |
2908d778 JB |
610 | |
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 */ | |
a01e70e5 | 625 | int (*lldd_control_phy)(struct asd_sas_phy *, enum phy_func, void *); |
2908d778 JB |
626 | }; |
627 | ||
628 | extern int sas_register_ha(struct sas_ha_struct *); | |
629 | extern int sas_unregister_ha(struct sas_ha_struct *); | |
630 | ||
acbf167d DW |
631 | int sas_set_phy_speed(struct sas_phy *phy, |
632 | struct sas_phy_linkrates *rates); | |
633 | int sas_phy_enable(struct sas_phy *phy, int enabled); | |
dea22214 | 634 | int sas_phy_reset(struct sas_phy *phy, int hard_reset); |
338ec570 | 635 | int sas_queue_up(struct sas_task *task); |
2908d778 JB |
636 | extern int sas_queuecommand(struct scsi_cmnd *, |
637 | void (*scsi_done)(struct scsi_cmnd *)); | |
638 | extern int sas_target_alloc(struct scsi_target *); | |
639 | extern int sas_slave_alloc(struct scsi_device *); | |
640 | extern int sas_slave_configure(struct scsi_device *); | |
641 | extern void sas_slave_destroy(struct scsi_device *); | |
642 | extern int sas_change_queue_depth(struct scsi_device *, int new_depth); | |
643 | extern int sas_change_queue_type(struct scsi_device *, int qt); | |
644 | extern int sas_bios_param(struct scsi_device *, | |
645 | struct block_device *, | |
646 | sector_t capacity, int *hsc); | |
647 | extern struct scsi_transport_template * | |
648 | sas_domain_attach_transport(struct sas_domain_function_template *); | |
649 | extern void sas_domain_release_transport(struct scsi_transport_template *); | |
650 | ||
651 | int sas_discover_root_expander(struct domain_device *); | |
652 | ||
653 | void sas_init_ex_attr(void); | |
654 | ||
655 | int sas_ex_revalidate_domain(struct domain_device *); | |
656 | ||
657 | void sas_unregister_domain_devices(struct asd_sas_port *port); | |
658 | void sas_init_disc(struct sas_discovery *disc, struct asd_sas_port *); | |
659 | int sas_discover_event(struct asd_sas_port *, enum discover_event ev); | |
660 | ||
661 | int sas_discover_sata(struct domain_device *); | |
662 | int sas_discover_end_dev(struct domain_device *); | |
663 | ||
664 | void sas_unregister_dev(struct domain_device *); | |
665 | ||
666 | void sas_init_dev(struct domain_device *); | |
667 | ||
396819fb DW |
668 | void sas_task_abort(struct sas_task *); |
669 | int __sas_task_abort(struct sas_task *); | |
ad689233 | 670 | int sas_eh_device_reset_handler(struct scsi_cmnd *cmd); |
a9344e68 | 671 | int sas_eh_bus_reset_handler(struct scsi_cmnd *cmd); |
79a5eb60 | 672 | |
fa1c1e8f DW |
673 | extern void sas_target_destroy(struct scsi_target *); |
674 | extern int sas_slave_alloc(struct scsi_device *); | |
675 | extern int sas_ioctl(struct scsi_device *sdev, int cmd, void __user *arg); | |
676 | ||
ba1fc175 FT |
677 | extern int sas_smp_handler(struct Scsi_Host *shost, struct sas_rphy *rphy, |
678 | struct request *req); | |
2908d778 | 679 | #endif /* _SASLIB_H_ */ |