]>
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> | |
fa1c1e8f | 33 | #include <linux/libata.h> |
2908d778 | 34 | #include <linux/list.h> |
2908d778 JB |
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> |
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 | ||
2908d778 JB |
94 | #define to_dom_device(_obj) container_of(_obj, struct domain_device, dev_obj) |
95 | #define to_dev_attr(_attr) container_of(_attr, struct domain_dev_attribute,\ | |
96 | attr) | |
97 | ||
98 | enum routing_attribute { | |
99 | DIRECT_ROUTING, | |
100 | SUBTRACTIVE_ROUTING, | |
101 | TABLE_ROUTING, | |
102 | }; | |
103 | ||
104 | enum ex_phy_state { | |
105 | PHY_EMPTY, | |
106 | PHY_VACANT, | |
107 | PHY_NOT_PRESENT, | |
108 | PHY_DEVICE_DISCOVERED | |
109 | }; | |
110 | ||
111 | struct ex_phy { | |
112 | int phy_id; | |
113 | ||
114 | enum ex_phy_state phy_state; | |
115 | ||
116 | enum sas_dev_type attached_dev_type; | |
88edf746 | 117 | enum sas_linkrate linkrate; |
2908d778 JB |
118 | |
119 | u8 attached_sata_host:1; | |
120 | u8 attached_sata_dev:1; | |
121 | u8 attached_sata_ps:1; | |
122 | ||
5929faf3 DW |
123 | enum sas_protocol attached_tproto; |
124 | enum sas_protocol attached_iproto; | |
2908d778 JB |
125 | |
126 | u8 attached_sas_addr[SAS_ADDR_SIZE]; | |
127 | u8 attached_phy_id; | |
128 | ||
129 | u8 phy_change_count; | |
130 | enum routing_attribute routing_attr; | |
131 | u8 virtual:1; | |
132 | ||
133 | int last_da_index; | |
134 | ||
135 | struct sas_phy *phy; | |
136 | struct sas_port *port; | |
137 | }; | |
138 | ||
139 | struct expander_device { | |
140 | struct list_head children; | |
141 | ||
142 | u16 ex_change_count; | |
143 | u16 max_route_indexes; | |
144 | u8 num_phys; | |
ffaac8f4 LT |
145 | |
146 | u8 t2t_supp:1; | |
2908d778 JB |
147 | u8 configuring:1; |
148 | u8 conf_route_table:1; | |
ffaac8f4 | 149 | |
2908d778 JB |
150 | u8 enclosure_logical_id[8]; |
151 | ||
152 | struct ex_phy *ex_phy; | |
153 | struct sas_port *parent_port; | |
154 | }; | |
155 | ||
156 | /* ---------- SATA device ---------- */ | |
157 | enum ata_command_set { | |
158 | ATA_COMMAND_SET = 0, | |
159 | ATAPI_COMMAND_SET = 1, | |
160 | }; | |
161 | ||
162 | struct sata_device { | |
163 | enum ata_command_set command_set; | |
164 | struct smp_resp rps_resp; /* report_phy_sata_resp */ | |
165 | __le16 *identify_device; | |
166 | __le16 *identify_packet_device; | |
167 | ||
168 | u8 port_no; /* port number, if this is a PM (Port) */ | |
169 | struct list_head children; /* PM Ports if this is a PM */ | |
fa1c1e8f DW |
170 | |
171 | struct ata_port *ap; | |
172 | struct ata_host ata_host; | |
173 | struct ata_taskfile tf; | |
2908d778 JB |
174 | }; |
175 | ||
176 | /* ---------- Domain device ---------- */ | |
177 | struct domain_device { | |
178 | enum sas_dev_type dev_type; | |
179 | ||
88edf746 JB |
180 | enum sas_linkrate linkrate; |
181 | enum sas_linkrate min_linkrate; | |
182 | enum sas_linkrate max_linkrate; | |
2908d778 JB |
183 | |
184 | int pathways; | |
185 | ||
186 | struct domain_device *parent; | |
187 | struct list_head siblings; /* devices on the same level */ | |
188 | struct asd_sas_port *port; /* shortcut to root of the tree */ | |
189 | ||
190 | struct list_head dev_list_node; | |
191 | ||
5929faf3 DW |
192 | enum sas_protocol iproto; |
193 | enum sas_protocol tproto; | |
2908d778 JB |
194 | |
195 | struct sas_rphy *rphy; | |
196 | ||
197 | u8 sas_addr[SAS_ADDR_SIZE]; | |
198 | u8 hashed_sas_addr[HASHED_SAS_ADDR_SIZE]; | |
199 | ||
200 | u8 frame_rcvd[32]; | |
201 | ||
202 | union { | |
203 | struct expander_device ex_dev; | |
204 | struct sata_device sata_dev; /* STP & directly attached */ | |
205 | }; | |
206 | ||
207 | void *lldd_dev; | |
56dd2c06 | 208 | int gone; |
735f7d2f | 209 | struct kref kref; |
2908d778 JB |
210 | }; |
211 | ||
c4028958 DH |
212 | struct sas_discovery_event { |
213 | struct work_struct work; | |
214 | struct asd_sas_port *port; | |
215 | }; | |
216 | ||
2908d778 | 217 | struct sas_discovery { |
c4028958 | 218 | struct sas_discovery_event disc_work[DISC_NUM_EVENTS]; |
2908d778 JB |
219 | unsigned long pending; |
220 | u8 fanout_sas_addr[8]; | |
221 | u8 eeds_a[8]; | |
222 | u8 eeds_b[8]; | |
223 | int max_level; | |
224 | }; | |
225 | ||
226 | ||
227 | /* The port struct is Class:RW, driver:RO */ | |
228 | struct asd_sas_port { | |
229 | /* private: */ | |
230 | struct completion port_gone_completion; | |
231 | ||
232 | struct sas_discovery disc; | |
233 | struct domain_device *port_dev; | |
234 | spinlock_t dev_list_lock; | |
235 | struct list_head dev_list; | |
88edf746 | 236 | enum sas_linkrate linkrate; |
2908d778 JB |
237 | |
238 | struct sas_phy *phy; | |
239 | struct work_struct work; | |
240 | ||
241 | /* public: */ | |
242 | int id; | |
243 | ||
244 | enum sas_class class; | |
245 | u8 sas_addr[SAS_ADDR_SIZE]; | |
246 | u8 attached_sas_addr[SAS_ADDR_SIZE]; | |
5929faf3 DW |
247 | enum sas_protocol iproto; |
248 | enum sas_protocol tproto; | |
2908d778 JB |
249 | |
250 | enum sas_oob_mode oob_mode; | |
251 | ||
252 | spinlock_t phy_list_lock; | |
253 | struct list_head phy_list; | |
254 | int num_phys; | |
255 | u32 phy_mask; | |
256 | ||
257 | struct sas_ha_struct *ha; | |
258 | ||
259 | struct sas_port *port; | |
260 | ||
261 | void *lldd_port; /* not touched by the sas class code */ | |
262 | }; | |
263 | ||
c4028958 DH |
264 | struct asd_sas_event { |
265 | struct work_struct work; | |
266 | struct asd_sas_phy *phy; | |
267 | }; | |
268 | ||
2908d778 JB |
269 | /* The phy pretty much is controlled by the LLDD. |
270 | * The class only reads those fields. | |
271 | */ | |
272 | struct asd_sas_phy { | |
273 | /* private: */ | |
c4028958 DH |
274 | struct asd_sas_event port_events[PORT_NUM_EVENTS]; |
275 | struct asd_sas_event phy_events[PHY_NUM_EVENTS]; | |
2908d778 JB |
276 | |
277 | unsigned long port_events_pending; | |
278 | unsigned long phy_events_pending; | |
279 | ||
280 | int error; | |
281 | ||
282 | struct sas_phy *phy; | |
283 | ||
284 | /* public: */ | |
285 | /* The following are class:RO, driver:R/W */ | |
286 | int enabled; /* must be set */ | |
287 | ||
288 | int id; /* must be set */ | |
289 | enum sas_class class; | |
5929faf3 DW |
290 | enum sas_protocol iproto; |
291 | enum sas_protocol tproto; | |
2908d778 JB |
292 | |
293 | enum sas_phy_type type; | |
294 | enum sas_phy_role role; | |
295 | enum sas_oob_mode oob_mode; | |
88edf746 | 296 | enum sas_linkrate linkrate; |
2908d778 JB |
297 | |
298 | u8 *sas_addr; /* must be set */ | |
299 | u8 attached_sas_addr[SAS_ADDR_SIZE]; /* class:RO, driver: R/W */ | |
300 | ||
301 | spinlock_t frame_rcvd_lock; | |
302 | u8 *frame_rcvd; /* must be set */ | |
303 | int frame_rcvd_size; | |
304 | ||
305 | spinlock_t sas_prim_lock; | |
306 | u32 sas_prim; | |
307 | ||
308 | struct list_head port_phy_el; /* driver:RO */ | |
309 | struct asd_sas_port *port; /* Class:RW, driver: RO */ | |
310 | ||
311 | struct sas_ha_struct *ha; /* may be set; the class sets it anyway */ | |
312 | ||
313 | void *lldd_phy; /* not touched by the sas_class_code */ | |
314 | }; | |
315 | ||
316 | struct scsi_core { | |
317 | struct Scsi_Host *shost; | |
318 | ||
319 | spinlock_t task_queue_lock; | |
320 | struct list_head task_queue; | |
321 | int task_queue_size; | |
322 | ||
d7a54e30 | 323 | struct task_struct *queue_thread; |
2908d778 JB |
324 | }; |
325 | ||
c4028958 DH |
326 | struct sas_ha_event { |
327 | struct work_struct work; | |
328 | struct sas_ha_struct *ha; | |
329 | }; | |
330 | ||
6b0efb85 DW |
331 | enum sas_ha_state { |
332 | SAS_HA_REGISTERED, | |
6b0efb85 DW |
333 | }; |
334 | ||
2908d778 JB |
335 | struct sas_ha_struct { |
336 | /* private: */ | |
c4028958 | 337 | struct sas_ha_event ha_events[HA_NUM_EVENTS]; |
2908d778 JB |
338 | unsigned long pending; |
339 | ||
f8daa6e6 | 340 | unsigned long state; |
6b0efb85 DW |
341 | spinlock_t state_lock; |
342 | ||
2908d778 JB |
343 | struct scsi_core core; |
344 | ||
345 | /* public: */ | |
346 | char *sas_ha_name; | |
1d1bbee6 | 347 | struct device *dev; /* should be set */ |
2908d778 JB |
348 | struct module *lldd_module; /* should be set */ |
349 | ||
350 | u8 *sas_addr; /* must be set */ | |
351 | u8 hashed_sas_addr[HASHED_SAS_ADDR_SIZE]; | |
352 | ||
353 | spinlock_t phy_port_lock; | |
354 | struct asd_sas_phy **sas_phy; /* array of valid pointers, must be set */ | |
355 | struct asd_sas_port **sas_port; /* array of valid pointers, must be set */ | |
356 | int num_phys; /* must be set, gt 0, static */ | |
357 | ||
358 | /* The class calls this to send a task for execution. */ | |
359 | int lldd_max_execute_num; | |
360 | int lldd_queue_size; | |
00f0254e DW |
361 | int strict_wide_ports; /* both sas_addr and attached_sas_addr must match |
362 | * their siblings when forming wide ports */ | |
2908d778 JB |
363 | |
364 | /* LLDD calls these to notify the class of an event. */ | |
365 | void (*notify_ha_event)(struct sas_ha_struct *, enum ha_event); | |
366 | void (*notify_port_event)(struct asd_sas_phy *, enum port_event); | |
367 | void (*notify_phy_event)(struct asd_sas_phy *, enum phy_event); | |
368 | ||
369 | void *lldd_ha; /* not touched by sas class code */ | |
f456393e DW |
370 | |
371 | struct list_head eh_done_q; | |
2908d778 JB |
372 | }; |
373 | ||
374 | #define SHOST_TO_SAS_HA(_shost) (*(struct sas_ha_struct **)(_shost)->hostdata) | |
375 | ||
376 | static inline struct domain_device * | |
377 | starget_to_domain_dev(struct scsi_target *starget) { | |
378 | return starget->hostdata; | |
379 | } | |
380 | ||
381 | static inline struct domain_device * | |
382 | sdev_to_domain_dev(struct scsi_device *sdev) { | |
383 | return starget_to_domain_dev(sdev->sdev_target); | |
384 | } | |
385 | ||
b50102d3 DW |
386 | static inline struct ata_device *sas_to_ata_dev(struct domain_device *dev) |
387 | { | |
388 | return &dev->sata_dev.ap->link.device[0]; | |
389 | } | |
390 | ||
2908d778 JB |
391 | static inline struct domain_device * |
392 | cmd_to_domain_dev(struct scsi_cmnd *cmd) | |
393 | { | |
394 | return sdev_to_domain_dev(cmd->device); | |
395 | } | |
396 | ||
397 | void sas_hash_addr(u8 *hashed, const u8 *sas_addr); | |
398 | ||
399 | /* Before calling a notify event, LLDD should use this function | |
400 | * when the link is severed (possibly from its tasklet). | |
401 | * The idea is that the Class only reads those, while the LLDD, | |
402 | * can R/W these (thus avoiding a race). | |
403 | */ | |
404 | static inline void sas_phy_disconnected(struct asd_sas_phy *phy) | |
405 | { | |
406 | phy->oob_mode = OOB_NOT_CONNECTED; | |
88edf746 | 407 | phy->linkrate = SAS_LINK_RATE_UNKNOWN; |
2908d778 JB |
408 | } |
409 | ||
8ec6552f DW |
410 | static inline unsigned int to_sas_gpio_od(int device, int bit) |
411 | { | |
412 | return 3 * device + bit; | |
413 | } | |
414 | ||
d962480e | 415 | #ifdef CONFIG_SCSI_SAS_HOST_SMP |
8ec6552f | 416 | int try_test_sas_gpio_gp_bit(unsigned int od, u8 *data, u8 index, u8 count); |
d962480e DW |
417 | #else |
418 | static inline int try_test_sas_gpio_gp_bit(unsigned int od, u8 *data, u8 index, u8 count) | |
419 | { | |
420 | return -1; | |
421 | } | |
422 | #endif | |
8ec6552f | 423 | |
2908d778 JB |
424 | /* ---------- Tasks ---------- */ |
425 | /* | |
426 | service_response | SAS_TASK_COMPLETE | SAS_TASK_UNDELIVERED | | |
427 | exec_status | | | | |
428 | ---------------------+---------------------+-----------------------+ | |
429 | SAM_... | X | | | |
430 | DEV_NO_RESPONSE | X | X | | |
431 | INTERRUPTED | X | | | |
432 | QUEUE_FULL | | X | | |
433 | DEVICE_UNKNOWN | | X | | |
434 | SG_ERR | | X | | |
435 | ---------------------+---------------------+-----------------------+ | |
436 | */ | |
437 | ||
438 | enum service_response { | |
439 | SAS_TASK_COMPLETE, | |
440 | SAS_TASK_UNDELIVERED = -1, | |
441 | }; | |
442 | ||
443 | enum exec_status { | |
df64d3ca | 444 | /* The SAM_STAT_.. codes fit in the lower 6 bits */ |
2908d778 JB |
445 | |
446 | SAS_DEV_NO_RESPONSE = 0x80, | |
447 | SAS_DATA_UNDERRUN, | |
448 | SAS_DATA_OVERRUN, | |
449 | SAS_INTERRUPTED, | |
450 | SAS_QUEUE_FULL, | |
451 | SAS_DEVICE_UNKNOWN, | |
452 | SAS_SG_ERR, | |
453 | SAS_OPEN_REJECT, | |
454 | SAS_OPEN_TO, | |
455 | SAS_PROTO_RESPONSE, | |
456 | SAS_PHY_DOWN, | |
457 | SAS_NAK_R_ERR, | |
458 | SAS_PENDING, | |
459 | SAS_ABORTED_TASK, | |
460 | }; | |
461 | ||
462 | /* When a task finishes with a response, the LLDD examines the | |
463 | * response: | |
464 | * - For an ATA task task_status_struct::stat is set to | |
465 | * SAS_PROTO_RESPONSE, and the task_status_struct::buf is set to the | |
466 | * contents of struct ata_task_resp. | |
467 | * - For SSP tasks, if no data is present or status/TMF response | |
468 | * is valid, task_status_struct::stat is set. If data is present | |
469 | * (SENSE data), the LLDD copies up to SAS_STATUS_BUF_SIZE, sets | |
470 | * task_status_struct::buf_valid_size, and task_status_struct::stat is | |
471 | * set to SAM_CHECK_COND. | |
472 | * | |
473 | * "buf" has format SCSI Sense for SSP task, or struct ata_task_resp | |
474 | * for ATA task. | |
475 | * | |
476 | * "frame_len" is the total frame length, which could be more or less | |
477 | * than actually copied. | |
478 | * | |
479 | * Tasks ending with response, always set the residual field. | |
480 | */ | |
481 | struct ata_task_resp { | |
482 | u16 frame_len; | |
483 | u8 ending_fis[24]; /* dev to host or data-in */ | |
2908d778 JB |
484 | }; |
485 | ||
486 | #define SAS_STATUS_BUF_SIZE 96 | |
487 | ||
488 | struct task_status_struct { | |
489 | enum service_response resp; | |
490 | enum exec_status stat; | |
491 | int buf_valid_size; | |
492 | ||
493 | u8 buf[SAS_STATUS_BUF_SIZE]; | |
494 | ||
495 | u32 residual; | |
496 | enum sas_open_rej_reason open_rej_reason; | |
497 | }; | |
498 | ||
499 | /* ATA and ATAPI task queuable to a SAS LLDD. | |
500 | */ | |
501 | struct sas_ata_task { | |
502 | struct host_to_dev_fis fis; | |
503 | u8 atapi_packet[16]; /* 0 if not ATAPI task */ | |
504 | ||
505 | u8 retry_count; /* hardware retry, should be > 0 */ | |
506 | ||
507 | u8 dma_xfer:1; /* PIO:0 or DMA:1 */ | |
508 | u8 use_ncq:1; | |
509 | u8 set_affil_pol:1; | |
510 | u8 stp_affil_pol:1; | |
511 | ||
512 | u8 device_control_reg_update:1; | |
513 | }; | |
514 | ||
515 | struct sas_smp_task { | |
516 | struct scatterlist smp_req; | |
517 | struct scatterlist smp_resp; | |
518 | }; | |
519 | ||
520 | enum task_attribute { | |
521 | TASK_ATTR_SIMPLE = 0, | |
522 | TASK_ATTR_HOQ = 1, | |
523 | TASK_ATTR_ORDERED= 2, | |
524 | TASK_ATTR_ACA = 4, | |
525 | }; | |
526 | ||
527 | struct sas_ssp_task { | |
528 | u8 retry_count; /* hardware retry, should be > 0 */ | |
529 | ||
530 | u8 LUN[8]; | |
531 | u8 enable_first_burst:1; | |
532 | enum task_attribute task_attr; | |
533 | u8 task_prio; | |
534 | u8 cdb[16]; | |
535 | }; | |
536 | ||
537 | struct sas_task { | |
538 | struct domain_device *dev; | |
539 | struct list_head list; | |
540 | ||
541 | spinlock_t task_state_lock; | |
542 | unsigned task_state_flags; | |
543 | ||
5929faf3 | 544 | enum sas_protocol task_proto; |
2908d778 JB |
545 | |
546 | /* Used by the discovery code. */ | |
547 | struct timer_list timer; | |
548 | struct completion completion; | |
549 | ||
550 | union { | |
551 | struct sas_ata_task ata_task; | |
552 | struct sas_smp_task smp_task; | |
553 | struct sas_ssp_task ssp_task; | |
554 | }; | |
555 | ||
556 | struct scatterlist *scatter; | |
557 | int num_scatter; | |
558 | u32 total_xfer_len; | |
559 | u8 data_dir:2; /* Use PCI_DMA_... */ | |
560 | ||
561 | struct task_status_struct task_status; | |
562 | void (*task_done)(struct sas_task *); | |
563 | ||
564 | void *lldd_task; /* for use by LLDDs */ | |
565 | void *uldd_task; | |
79a5eb60 DW |
566 | |
567 | struct work_struct abort_work; | |
2908d778 JB |
568 | }; |
569 | ||
f456393e DW |
570 | #define SAS_TASK_STATE_PENDING 1 |
571 | #define SAS_TASK_STATE_DONE 2 | |
572 | #define SAS_TASK_STATE_ABORTED 4 | |
3ebf6922 | 573 | #define SAS_TASK_NEED_DEV_RESET 8 |
b218a0d8 | 574 | #define SAS_TASK_AT_INITIATOR 16 |
2908d778 | 575 | |
4fcf812c DW |
576 | extern struct sas_task *sas_alloc_task(gfp_t flags); |
577 | extern void sas_free_task(struct sas_task *task); | |
2908d778 JB |
578 | |
579 | struct sas_domain_function_template { | |
580 | /* The class calls these to notify the LLDD of an event. */ | |
581 | void (*lldd_port_formed)(struct asd_sas_phy *); | |
582 | void (*lldd_port_deformed)(struct asd_sas_phy *); | |
583 | ||
584 | /* The class calls these when a device is found or gone. */ | |
585 | int (*lldd_dev_found)(struct domain_device *); | |
586 | void (*lldd_dev_gone)(struct domain_device *); | |
587 | ||
588 | int (*lldd_execute_task)(struct sas_task *, int num, | |
3cc27547 | 589 | gfp_t gfp_flags); |
2908d778 JB |
590 | |
591 | /* Task Management Functions. Must be called from process context. */ | |
592 | int (*lldd_abort_task)(struct sas_task *); | |
593 | int (*lldd_abort_task_set)(struct domain_device *, u8 *lun); | |
594 | int (*lldd_clear_aca)(struct domain_device *, u8 *lun); | |
595 | int (*lldd_clear_task_set)(struct domain_device *, u8 *lun); | |
596 | int (*lldd_I_T_nexus_reset)(struct domain_device *); | |
1ca1e43e | 597 | int (*lldd_ata_soft_reset)(struct domain_device *); |
2908d778 JB |
598 | int (*lldd_lu_reset)(struct domain_device *, u8 *lun); |
599 | int (*lldd_query_task)(struct sas_task *); | |
600 | ||
601 | /* Port and Adapter management */ | |
602 | int (*lldd_clear_nexus_port)(struct asd_sas_port *); | |
603 | int (*lldd_clear_nexus_ha)(struct sas_ha_struct *); | |
604 | ||
605 | /* Phy management */ | |
a01e70e5 | 606 | int (*lldd_control_phy)(struct asd_sas_phy *, enum phy_func, void *); |
8ec6552f DW |
607 | |
608 | /* GPIO support */ | |
609 | int (*lldd_write_gpio)(struct sas_ha_struct *, u8 reg_type, | |
610 | u8 reg_index, u8 reg_count, u8 *write_data); | |
2908d778 JB |
611 | }; |
612 | ||
613 | extern int sas_register_ha(struct sas_ha_struct *); | |
614 | extern int sas_unregister_ha(struct sas_ha_struct *); | |
615 | ||
acbf167d DW |
616 | int sas_set_phy_speed(struct sas_phy *phy, |
617 | struct sas_phy_linkrates *rates); | |
618 | int sas_phy_enable(struct sas_phy *phy, int enabled); | |
dea22214 | 619 | int sas_phy_reset(struct sas_phy *phy, int hard_reset); |
338ec570 | 620 | int sas_queue_up(struct sas_task *task); |
f281233d | 621 | extern int sas_queuecommand(struct Scsi_Host * ,struct scsi_cmnd *); |
2908d778 JB |
622 | extern int sas_target_alloc(struct scsi_target *); |
623 | extern int sas_slave_alloc(struct scsi_device *); | |
624 | extern int sas_slave_configure(struct scsi_device *); | |
e881a172 MC |
625 | extern int sas_change_queue_depth(struct scsi_device *, int new_depth, |
626 | int reason); | |
2908d778 JB |
627 | extern int sas_change_queue_type(struct scsi_device *, int qt); |
628 | extern int sas_bios_param(struct scsi_device *, | |
629 | struct block_device *, | |
630 | sector_t capacity, int *hsc); | |
631 | extern struct scsi_transport_template * | |
632 | sas_domain_attach_transport(struct sas_domain_function_template *); | |
633 | extern void sas_domain_release_transport(struct scsi_transport_template *); | |
634 | ||
635 | int sas_discover_root_expander(struct domain_device *); | |
636 | ||
637 | void sas_init_ex_attr(void); | |
638 | ||
639 | int sas_ex_revalidate_domain(struct domain_device *); | |
640 | ||
641 | void sas_unregister_domain_devices(struct asd_sas_port *port); | |
642 | void sas_init_disc(struct sas_discovery *disc, struct asd_sas_port *); | |
643 | int sas_discover_event(struct asd_sas_port *, enum discover_event ev); | |
644 | ||
645 | int sas_discover_sata(struct domain_device *); | |
646 | int sas_discover_end_dev(struct domain_device *); | |
647 | ||
1a34c064 | 648 | void sas_unregister_dev(struct asd_sas_port *port, struct domain_device *); |
2908d778 JB |
649 | |
650 | void sas_init_dev(struct domain_device *); | |
651 | ||
396819fb DW |
652 | void sas_task_abort(struct sas_task *); |
653 | int __sas_task_abort(struct sas_task *); | |
ad689233 | 654 | int sas_eh_device_reset_handler(struct scsi_cmnd *cmd); |
a9344e68 | 655 | int sas_eh_bus_reset_handler(struct scsi_cmnd *cmd); |
79a5eb60 | 656 | |
fa1c1e8f DW |
657 | extern void sas_target_destroy(struct scsi_target *); |
658 | extern int sas_slave_alloc(struct scsi_device *); | |
659 | extern int sas_ioctl(struct scsi_device *sdev, int cmd, void __user *arg); | |
660 | ||
ba1fc175 FT |
661 | extern int sas_smp_handler(struct Scsi_Host *shost, struct sas_rphy *rphy, |
662 | struct request *req); | |
366ca51f JB |
663 | |
664 | extern void sas_ssp_task_response(struct device *dev, struct sas_task *task, | |
665 | struct ssp_response_iu *iu); | |
5319578c | 666 | struct sas_phy *sas_find_local_phy(struct domain_device *dev); |
366ca51f | 667 | |
45e6cdf4 DW |
668 | int sas_request_addr(struct Scsi_Host *shost, u8 *addr); |
669 | ||
2908d778 | 670 | #endif /* _SASLIB_H_ */ |