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6f231dda DW |
1 | /* |
2 | * This file is provided under a dual BSD/GPLv2 license. When using or | |
3 | * redistributing this file, you may do so under either license. | |
4 | * | |
5 | * GPL LICENSE SUMMARY | |
6 | * | |
7 | * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. | |
8 | * | |
9 | * This program is free software; you can redistribute it and/or modify | |
10 | * it under the terms of version 2 of the GNU General Public License as | |
11 | * published by the Free Software Foundation. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, but | |
14 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
16 | * General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License | |
19 | * along with this program; if not, write to the Free Software | |
20 | * Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. | |
21 | * The full GNU General Public License is included in this distribution | |
22 | * in the file called LICENSE.GPL. | |
23 | * | |
24 | * BSD LICENSE | |
25 | * | |
26 | * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. | |
27 | * All rights reserved. | |
28 | * | |
29 | * Redistribution and use in source and binary forms, with or without | |
30 | * modification, are permitted provided that the following conditions | |
31 | * are met: | |
32 | * | |
33 | * * Redistributions of source code must retain the above copyright | |
34 | * notice, this list of conditions and the following disclaimer. | |
35 | * * Redistributions in binary form must reproduce the above copyright | |
36 | * notice, this list of conditions and the following disclaimer in | |
37 | * the documentation and/or other materials provided with the | |
38 | * distribution. | |
39 | * * Neither the name of Intel Corporation nor the names of its | |
40 | * contributors may be used to endorse or promote products derived | |
41 | * from this software without specific prior written permission. | |
42 | * | |
43 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
44 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
45 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
46 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
47 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
48 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
49 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
50 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
51 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
52 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
53 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
54 | */ | |
ce2b3261 | 55 | #ifndef _SCI_HOST_H_ |
6f231dda DW |
56 | #define _SCI_HOST_H_ |
57 | ||
6f231dda | 58 | #include "remote_device.h" |
ce2b3261 | 59 | #include "phy.h" |
12ef6544 | 60 | #include "isci.h" |
cc9203bf | 61 | #include "remote_node_table.h" |
63a3a15f | 62 | #include "registers.h" |
cc9203bf | 63 | #include "scu_unsolicited_frame.h" |
63a3a15f | 64 | #include "unsolicited_frame_control.h" |
e2f8db50 | 65 | #include "probe_roms.h" |
cc9203bf | 66 | |
5076a1a9 | 67 | struct isci_request; |
cc9203bf DW |
68 | struct scu_task_context; |
69 | ||
e2f8db50 | 70 | |
cc9203bf DW |
71 | /** |
72 | * struct scic_power_control - | |
73 | * | |
74 | * This structure defines the fields for managing power control for direct | |
75 | * attached disk devices. | |
76 | */ | |
77 | struct scic_power_control { | |
78 | /** | |
79 | * This field is set when the power control timer is running and cleared when | |
80 | * it is not. | |
81 | */ | |
82 | bool timer_started; | |
83 | ||
84 | /** | |
0473661a | 85 | * Timer to control when the directed attached disks can consume power. |
cc9203bf | 86 | */ |
0473661a | 87 | struct sci_timer timer; |
cc9203bf DW |
88 | |
89 | /** | |
90 | * This field is used to keep track of how many phys are put into the | |
91 | * requesters field. | |
92 | */ | |
93 | u8 phys_waiting; | |
94 | ||
95 | /** | |
96 | * This field is used to keep track of how many phys have been granted to consume power | |
97 | */ | |
98 | u8 phys_granted_power; | |
99 | ||
100 | /** | |
101 | * This field is an array of phys that we are waiting on. The phys are direct | |
102 | * mapped into requesters via struct scic_sds_phy.phy_index | |
103 | */ | |
104 | struct scic_sds_phy *requesters[SCI_MAX_PHYS]; | |
105 | ||
106 | }; | |
107 | ||
e2f8db50 DW |
108 | struct scic_sds_port_configuration_agent; |
109 | typedef void (*port_config_fn)(struct scic_sds_controller *, | |
110 | struct scic_sds_port_configuration_agent *, | |
111 | struct scic_sds_port *, struct scic_sds_phy *); | |
112 | ||
113 | struct scic_sds_port_configuration_agent { | |
114 | u16 phy_configured_mask; | |
115 | u16 phy_ready_mask; | |
116 | struct { | |
117 | u8 min_index; | |
118 | u8 max_index; | |
119 | } phy_valid_port_range[SCI_MAX_PHYS]; | |
120 | bool timer_pending; | |
121 | port_config_fn link_up_handler; | |
122 | port_config_fn link_down_handler; | |
ac0eeb4f | 123 | struct sci_timer timer; |
e2f8db50 DW |
124 | }; |
125 | ||
cc9203bf DW |
126 | /** |
127 | * struct scic_sds_controller - | |
128 | * | |
129 | * This structure represents the SCU controller object. | |
130 | */ | |
131 | struct scic_sds_controller { | |
132 | /** | |
133 | * This field contains the information for the base controller state | |
134 | * machine. | |
135 | */ | |
e301370a | 136 | struct sci_base_state_machine sm; |
cc9203bf DW |
137 | |
138 | /** | |
6cb5853d | 139 | * Timer for controller start/stop operations. |
cc9203bf | 140 | */ |
6cb5853d | 141 | struct sci_timer timer; |
cc9203bf DW |
142 | |
143 | /** | |
144 | * This field contains the user parameters to be utilized for this | |
145 | * core controller object. | |
146 | */ | |
147 | union scic_user_parameters user_parameters; | |
148 | ||
149 | /** | |
150 | * This field contains the OEM parameters to be utilized for this | |
151 | * core controller object. | |
152 | */ | |
153 | union scic_oem_parameters oem_parameters; | |
154 | ||
155 | /** | |
156 | * This field contains the port configuration agent for this controller. | |
157 | */ | |
158 | struct scic_sds_port_configuration_agent port_agent; | |
159 | ||
160 | /** | |
161 | * This field is the array of device objects that are currently constructed | |
162 | * for this controller object. This table is used as a fast lookup of device | |
163 | * objects that need to handle device completion notifications from the | |
164 | * hardware. The table is RNi based. | |
165 | */ | |
166 | struct scic_sds_remote_device *device_table[SCI_MAX_REMOTE_DEVICES]; | |
167 | ||
cc9203bf DW |
168 | /** |
169 | * This field is the free RNi data structure | |
170 | */ | |
171 | struct scic_remote_node_table available_remote_nodes; | |
172 | ||
cc9203bf DW |
173 | /** |
174 | * This filed is the struct scic_power_control data used to controll when direct | |
175 | * attached devices can consume power. | |
176 | */ | |
177 | struct scic_power_control power_control; | |
178 | ||
dd047c8e DW |
179 | /* sequence number per tci */ |
180 | u8 io_request_sequence[SCI_MAX_IO_REQUESTS]; | |
cc9203bf | 181 | |
cc9203bf DW |
182 | /** |
183 | * This field is a pointer to the memory allocated by the driver for the task | |
184 | * context table. This data is shared between the hardware and software. | |
185 | */ | |
186 | struct scu_task_context *task_context_table; | |
312e0c24 | 187 | dma_addr_t task_context_dma; |
cc9203bf DW |
188 | |
189 | /** | |
190 | * This field is a pointer to the memory allocated by the driver for the | |
191 | * remote node context table. This table is shared between the hardware and | |
192 | * software. | |
193 | */ | |
194 | union scu_remote_node_context *remote_node_context_table; | |
195 | ||
196 | /** | |
197 | * This field is a pointer to the completion queue. This memory is | |
198 | * written to by the hardware and read by the software. | |
199 | */ | |
200 | u32 *completion_queue; | |
201 | ||
202 | /** | |
203 | * This field is the software copy of the completion queue get pointer. The | |
204 | * controller object writes this value to the hardware after processing the | |
205 | * completion entries. | |
206 | */ | |
207 | u32 completion_queue_get; | |
208 | ||
209 | /** | |
210 | * This field is the minimum of the number of hardware supported port entries | |
211 | * and the software requested port entries. | |
212 | */ | |
213 | u32 logical_port_entries; | |
214 | ||
cc9203bf DW |
215 | /** |
216 | * This field is the minimum number of devices supported by the hardware and | |
217 | * the number of devices requested by the software. | |
218 | */ | |
219 | u32 remote_node_entries; | |
220 | ||
221 | /** | |
222 | * This field is the minimum number of IO requests supported by the hardware | |
223 | * and the number of IO requests requested by the software. | |
224 | */ | |
225 | u32 task_context_entries; | |
226 | ||
227 | /** | |
228 | * This object contains all of the unsolicited frame specific | |
229 | * data utilized by the core controller. | |
230 | */ | |
231 | struct scic_sds_unsolicited_frame_control uf_control; | |
232 | ||
233 | /* Phy Startup Data */ | |
234 | /** | |
bb3dbdf6 EN |
235 | * Timer for controller phy request startup. On controller start the |
236 | * controller will start each PHY individually in order of phy index. | |
cc9203bf | 237 | */ |
bb3dbdf6 | 238 | struct sci_timer phy_timer; |
cc9203bf DW |
239 | |
240 | /** | |
bb3dbdf6 EN |
241 | * This field is set when the phy_timer is running and is cleared when |
242 | * the phy_timer is stopped. | |
cc9203bf DW |
243 | */ |
244 | bool phy_startup_timer_pending; | |
245 | ||
246 | /** | |
247 | * This field is the index of the next phy start. It is initialized to 0 and | |
248 | * increments for each phy index that is started. | |
249 | */ | |
250 | u32 next_phy_to_start; | |
251 | ||
252 | /** | |
253 | * This field controlls the invalid link up notifications to the SCI_USER. If | |
254 | * an invalid_link_up notification is reported a bit for the PHY index is set | |
255 | * so further notifications are not made. Once the PHY object reports link up | |
256 | * and is made part of a port then this bit for the PHY index is cleared. | |
257 | */ | |
258 | u8 invalid_phy_mask; | |
259 | ||
260 | /* | |
261 | * This field saves the current interrupt coalescing number of the controller. | |
262 | */ | |
263 | u16 interrupt_coalesce_number; | |
264 | ||
265 | /* | |
266 | * This field saves the current interrupt coalescing timeout value in microseconds. | |
267 | */ | |
268 | u32 interrupt_coalesce_timeout; | |
269 | ||
270 | /** | |
271 | * This field is a pointer to the memory mapped register space for the | |
272 | * struct smu_registers. | |
273 | */ | |
274 | struct smu_registers __iomem *smu_registers; | |
275 | ||
276 | /** | |
277 | * This field is a pointer to the memory mapped register space for the | |
278 | * struct scu_registers. | |
279 | */ | |
280 | struct scu_registers __iomem *scu_registers; | |
281 | ||
282 | }; | |
6f231dda | 283 | |
6f231dda | 284 | struct isci_host { |
cc3dbd0a | 285 | struct scic_sds_controller sci; |
ac668c69 DW |
286 | u16 tci_head; |
287 | u16 tci_tail; | |
288 | u16 tci_pool[SCI_MAX_IO_REQUESTS]; | |
289 | ||
6f231dda DW |
290 | union scic_oem_parameters oem_parameters; |
291 | ||
292 | int id; /* unique within a given pci device */ | |
6f231dda | 293 | struct isci_phy phys[SCI_MAX_PHYS]; |
e531381e | 294 | struct isci_port ports[SCI_MAX_PORTS + 1]; /* includes dummy port */ |
6f231dda DW |
295 | struct sas_ha_struct sas_ha; |
296 | ||
6f231dda | 297 | spinlock_t state_lock; |
6f231dda | 298 | struct pci_dev *pdev; |
6f231dda | 299 | enum isci_status status; |
0cf89d1d DW |
300 | #define IHOST_START_PENDING 0 |
301 | #define IHOST_STOP_PENDING 1 | |
302 | unsigned long flags; | |
303 | wait_queue_head_t eventq; | |
6f231dda DW |
304 | struct Scsi_Host *shost; |
305 | struct tasklet_struct completion_tasklet; | |
6f231dda | 306 | struct list_head requests_to_complete; |
11b00c19 | 307 | struct list_head requests_to_errorback; |
6f231dda | 308 | spinlock_t scic_lock; |
db056250 | 309 | struct isci_request *reqs[SCI_MAX_IO_REQUESTS]; |
57f20f4e | 310 | struct isci_remote_device devices[SCI_MAX_REMOTE_DEVICES]; |
6f231dda DW |
311 | }; |
312 | ||
cc9203bf DW |
313 | /** |
314 | * enum scic_sds_controller_states - This enumeration depicts all the states | |
315 | * for the common controller state machine. | |
316 | */ | |
317 | enum scic_sds_controller_states { | |
318 | /** | |
319 | * Simply the initial state for the base controller state machine. | |
320 | */ | |
e301370a | 321 | SCIC_INITIAL = 0, |
cc9203bf DW |
322 | |
323 | /** | |
324 | * This state indicates that the controller is reset. The memory for | |
325 | * the controller is in it's initial state, but the controller requires | |
326 | * initialization. | |
327 | * This state is entered from the INITIAL state. | |
328 | * This state is entered from the RESETTING state. | |
329 | */ | |
e301370a | 330 | SCIC_RESET, |
cc9203bf DW |
331 | |
332 | /** | |
333 | * This state is typically an action state that indicates the controller | |
334 | * is in the process of initialization. In this state no new IO operations | |
335 | * are permitted. | |
336 | * This state is entered from the RESET state. | |
337 | */ | |
e301370a | 338 | SCIC_INITIALIZING, |
cc9203bf DW |
339 | |
340 | /** | |
341 | * This state indicates that the controller has been successfully | |
342 | * initialized. In this state no new IO operations are permitted. | |
343 | * This state is entered from the INITIALIZING state. | |
344 | */ | |
e301370a | 345 | SCIC_INITIALIZED, |
cc9203bf DW |
346 | |
347 | /** | |
348 | * This state indicates the the controller is in the process of becoming | |
349 | * ready (i.e. starting). In this state no new IO operations are permitted. | |
350 | * This state is entered from the INITIALIZED state. | |
351 | */ | |
e301370a | 352 | SCIC_STARTING, |
cc9203bf DW |
353 | |
354 | /** | |
355 | * This state indicates the controller is now ready. Thus, the user | |
356 | * is able to perform IO operations on the controller. | |
357 | * This state is entered from the STARTING state. | |
358 | */ | |
e301370a | 359 | SCIC_READY, |
cc9203bf DW |
360 | |
361 | /** | |
362 | * This state is typically an action state that indicates the controller | |
363 | * is in the process of resetting. Thus, the user is unable to perform | |
364 | * IO operations on the controller. A reset is considered destructive in | |
365 | * most cases. | |
366 | * This state is entered from the READY state. | |
367 | * This state is entered from the FAILED state. | |
368 | * This state is entered from the STOPPED state. | |
369 | */ | |
e301370a | 370 | SCIC_RESETTING, |
cc9203bf DW |
371 | |
372 | /** | |
373 | * This state indicates that the controller is in the process of stopping. | |
374 | * In this state no new IO operations are permitted, but existing IO | |
375 | * operations are allowed to complete. | |
376 | * This state is entered from the READY state. | |
377 | */ | |
e301370a | 378 | SCIC_STOPPING, |
cc9203bf DW |
379 | |
380 | /** | |
381 | * This state indicates that the controller has successfully been stopped. | |
382 | * In this state no new IO operations are permitted. | |
383 | * This state is entered from the STOPPING state. | |
384 | */ | |
e301370a | 385 | SCIC_STOPPED, |
cc9203bf DW |
386 | |
387 | /** | |
388 | * This state indicates that the controller could not successfully be | |
389 | * initialized. In this state no new IO operations are permitted. | |
390 | * This state is entered from the INITIALIZING state. | |
391 | * This state is entered from the STARTING state. | |
392 | * This state is entered from the STOPPING state. | |
393 | * This state is entered from the RESETTING state. | |
394 | */ | |
e301370a | 395 | SCIC_FAILED, |
cc9203bf DW |
396 | }; |
397 | ||
6f231dda DW |
398 | /** |
399 | * struct isci_pci_info - This class represents the pci function containing the | |
400 | * controllers. Depending on PCI SKU, there could be up to 2 controllers in | |
401 | * the PCI function. | |
402 | */ | |
403 | #define SCI_MAX_MSIX_INT (SCI_NUM_MSI_X_INT*SCI_MAX_CONTROLLERS) | |
404 | ||
405 | struct isci_pci_info { | |
406 | struct msix_entry msix_entries[SCI_MAX_MSIX_INT]; | |
b329aff1 | 407 | struct isci_host *hosts[SCI_MAX_CONTROLLERS]; |
d044af17 | 408 | struct isci_orom *orom; |
6f231dda DW |
409 | }; |
410 | ||
411 | static inline struct isci_pci_info *to_pci_info(struct pci_dev *pdev) | |
412 | { | |
413 | return pci_get_drvdata(pdev); | |
414 | } | |
415 | ||
b329aff1 DW |
416 | #define for_each_isci_host(id, ihost, pdev) \ |
417 | for (id = 0, ihost = to_pci_info(pdev)->hosts[id]; \ | |
418 | id < ARRAY_SIZE(to_pci_info(pdev)->hosts) && ihost; \ | |
419 | ihost = to_pci_info(pdev)->hosts[++id]) | |
6f231dda | 420 | |
cc9203bf | 421 | static inline enum isci_status isci_host_get_state(struct isci_host *isci_host) |
6f231dda DW |
422 | { |
423 | return isci_host->status; | |
424 | } | |
425 | ||
cc9203bf DW |
426 | static inline void isci_host_change_state(struct isci_host *isci_host, |
427 | enum isci_status status) | |
6f231dda DW |
428 | { |
429 | unsigned long flags; | |
430 | ||
431 | dev_dbg(&isci_host->pdev->dev, | |
432 | "%s: isci_host = %p, state = 0x%x", | |
433 | __func__, | |
434 | isci_host, | |
435 | status); | |
436 | spin_lock_irqsave(&isci_host->state_lock, flags); | |
437 | isci_host->status = status; | |
438 | spin_unlock_irqrestore(&isci_host->state_lock, flags); | |
439 | ||
440 | } | |
441 | ||
0cf89d1d DW |
442 | static inline void wait_for_start(struct isci_host *ihost) |
443 | { | |
444 | wait_event(ihost->eventq, !test_bit(IHOST_START_PENDING, &ihost->flags)); | |
445 | } | |
446 | ||
447 | static inline void wait_for_stop(struct isci_host *ihost) | |
448 | { | |
449 | wait_event(ihost->eventq, !test_bit(IHOST_STOP_PENDING, &ihost->flags)); | |
450 | } | |
451 | ||
6ad31fec DW |
452 | static inline void wait_for_device_start(struct isci_host *ihost, struct isci_remote_device *idev) |
453 | { | |
454 | wait_event(ihost->eventq, !test_bit(IDEV_START_PENDING, &idev->flags)); | |
455 | } | |
456 | ||
457 | static inline void wait_for_device_stop(struct isci_host *ihost, struct isci_remote_device *idev) | |
458 | { | |
d9c37390 | 459 | wait_event(ihost->eventq, !test_bit(IDEV_STOP_PENDING, &idev->flags)); |
6ad31fec | 460 | } |
0cf89d1d | 461 | |
4393aa4e DW |
462 | static inline struct isci_host *dev_to_ihost(struct domain_device *dev) |
463 | { | |
464 | return dev->port->ha->lldd_ha; | |
465 | } | |
6f231dda | 466 | |
cc3dbd0a AW |
467 | static inline struct isci_host *scic_to_ihost(struct scic_sds_controller *scic) |
468 | { | |
469 | /* XXX delete after merging scic_sds_contoller and isci_host */ | |
470 | struct isci_host *ihost = container_of(scic, typeof(*ihost), sci); | |
471 | ||
472 | return ihost; | |
473 | } | |
474 | ||
6f231dda | 475 | /** |
cc9203bf | 476 | * scic_sds_controller_get_protocol_engine_group() - |
6f231dda | 477 | * |
cc9203bf DW |
478 | * This macro returns the protocol engine group for this controller object. |
479 | * Presently we only support protocol engine group 0 so just return that | |
6f231dda | 480 | */ |
cc9203bf | 481 | #define scic_sds_controller_get_protocol_engine_group(controller) 0 |
6f231dda | 482 | |
dd047c8e DW |
483 | /* see scic_controller_io_tag_allocate|free for how seq and tci are built */ |
484 | #define ISCI_TAG(seq, tci) (((u16) (seq)) << 12 | tci) | |
cc9203bf | 485 | |
dd047c8e DW |
486 | /* these are returned by the hardware, so sanitize them */ |
487 | #define ISCI_TAG_SEQ(tag) (((tag) >> 12) & (SCI_MAX_SEQ-1)) | |
488 | #define ISCI_TAG_TCI(tag) ((tag) & (SCI_MAX_IO_REQUESTS-1)) | |
cc9203bf DW |
489 | |
490 | /* expander attached sata devices require 3 rnc slots */ | |
491 | static inline int scic_sds_remote_device_node_count(struct scic_sds_remote_device *sci_dev) | |
492 | { | |
493 | struct domain_device *dev = sci_dev_to_domain(sci_dev); | |
494 | ||
495 | if ((dev->dev_type == SATA_DEV || (dev->tproto & SAS_PROTOCOL_STP)) && | |
496 | !sci_dev->is_direct_attached) | |
497 | return SCU_STP_REMOTE_NODE_COUNT; | |
498 | return SCU_SSP_REMOTE_NODE_COUNT; | |
499 | } | |
500 | ||
501 | /** | |
502 | * scic_sds_controller_set_invalid_phy() - | |
503 | * | |
504 | * This macro will set the bit in the invalid phy mask for this controller | |
505 | * object. This is used to control messages reported for invalid link up | |
506 | * notifications. | |
507 | */ | |
508 | #define scic_sds_controller_set_invalid_phy(controller, phy) \ | |
509 | ((controller)->invalid_phy_mask |= (1 << (phy)->phy_index)) | |
510 | ||
511 | /** | |
512 | * scic_sds_controller_clear_invalid_phy() - | |
513 | * | |
514 | * This macro will clear the bit in the invalid phy mask for this controller | |
515 | * object. This is used to control messages reported for invalid link up | |
516 | * notifications. | |
517 | */ | |
518 | #define scic_sds_controller_clear_invalid_phy(controller, phy) \ | |
519 | ((controller)->invalid_phy_mask &= ~(1 << (phy)->phy_index)) | |
520 | ||
521 | static inline struct device *scic_to_dev(struct scic_sds_controller *scic) | |
522 | { | |
523 | return &scic_to_ihost(scic)->pdev->dev; | |
524 | } | |
525 | ||
526 | static inline struct device *sciphy_to_dev(struct scic_sds_phy *sci_phy) | |
527 | { | |
528 | struct isci_phy *iphy = sci_phy_to_iphy(sci_phy); | |
529 | ||
530 | if (!iphy || !iphy->isci_port || !iphy->isci_port->isci_host) | |
531 | return NULL; | |
532 | ||
533 | return &iphy->isci_port->isci_host->pdev->dev; | |
534 | } | |
535 | ||
536 | static inline struct device *sciport_to_dev(struct scic_sds_port *sci_port) | |
537 | { | |
538 | struct isci_port *iport = sci_port_to_iport(sci_port); | |
539 | ||
540 | if (!iport || !iport->isci_host) | |
541 | return NULL; | |
542 | ||
543 | return &iport->isci_host->pdev->dev; | |
544 | } | |
545 | ||
546 | static inline struct device *scirdev_to_dev(struct scic_sds_remote_device *sci_dev) | |
547 | { | |
548 | struct isci_remote_device *idev = | |
549 | container_of(sci_dev, typeof(*idev), sci); | |
550 | ||
551 | if (!idev || !idev->isci_port || !idev->isci_port->isci_host) | |
552 | return NULL; | |
553 | ||
554 | return &idev->isci_port->isci_host->pdev->dev; | |
555 | } | |
556 | ||
557 | enum { | |
558 | ISCI_SI_REVA0, | |
559 | ISCI_SI_REVA2, | |
560 | ISCI_SI_REVB0, | |
dbb0743a | 561 | ISCI_SI_REVC0 |
cc9203bf DW |
562 | }; |
563 | ||
564 | extern int isci_si_rev; | |
565 | ||
566 | static inline bool is_a0(void) | |
567 | { | |
568 | return isci_si_rev == ISCI_SI_REVA0; | |
569 | } | |
570 | ||
571 | static inline bool is_a2(void) | |
572 | { | |
573 | return isci_si_rev == ISCI_SI_REVA2; | |
574 | } | |
575 | ||
576 | static inline bool is_b0(void) | |
577 | { | |
dbb0743a AG |
578 | return isci_si_rev == ISCI_SI_REVB0; |
579 | } | |
580 | ||
581 | static inline bool is_c0(void) | |
582 | { | |
583 | return isci_si_rev > ISCI_SI_REVB0; | |
cc9203bf DW |
584 | } |
585 | ||
586 | void scic_sds_controller_post_request(struct scic_sds_controller *scic, | |
587 | u32 request); | |
588 | void scic_sds_controller_release_frame(struct scic_sds_controller *scic, | |
589 | u32 frame_index); | |
590 | void scic_sds_controller_copy_sata_response(void *response_buffer, | |
591 | void *frame_header, | |
592 | void *frame_buffer); | |
593 | enum sci_status scic_sds_controller_allocate_remote_node_context(struct scic_sds_controller *scic, | |
594 | struct scic_sds_remote_device *sci_dev, | |
595 | u16 *node_id); | |
596 | void scic_sds_controller_free_remote_node_context( | |
597 | struct scic_sds_controller *scic, | |
598 | struct scic_sds_remote_device *sci_dev, | |
599 | u16 node_id); | |
600 | union scu_remote_node_context *scic_sds_controller_get_remote_node_context_buffer( | |
601 | struct scic_sds_controller *scic, | |
602 | u16 node_id); | |
603 | ||
5076a1a9 | 604 | struct isci_request *scic_request_by_tag(struct scic_sds_controller *scic, |
cc9203bf DW |
605 | u16 io_tag); |
606 | ||
cc9203bf DW |
607 | void scic_sds_controller_power_control_queue_insert( |
608 | struct scic_sds_controller *scic, | |
609 | struct scic_sds_phy *sci_phy); | |
610 | ||
611 | void scic_sds_controller_power_control_queue_remove( | |
612 | struct scic_sds_controller *scic, | |
613 | struct scic_sds_phy *sci_phy); | |
614 | ||
615 | void scic_sds_controller_link_up( | |
616 | struct scic_sds_controller *scic, | |
617 | struct scic_sds_port *sci_port, | |
618 | struct scic_sds_phy *sci_phy); | |
619 | ||
620 | void scic_sds_controller_link_down( | |
621 | struct scic_sds_controller *scic, | |
622 | struct scic_sds_port *sci_port, | |
623 | struct scic_sds_phy *sci_phy); | |
624 | ||
625 | void scic_sds_controller_remote_device_stopped( | |
626 | struct scic_sds_controller *scic, | |
627 | struct scic_sds_remote_device *sci_dev); | |
628 | ||
629 | void scic_sds_controller_copy_task_context( | |
630 | struct scic_sds_controller *scic, | |
5076a1a9 | 631 | struct isci_request *ireq); |
cc9203bf DW |
632 | |
633 | void scic_sds_controller_register_setup(struct scic_sds_controller *scic); | |
634 | ||
5076a1a9 | 635 | enum sci_status scic_controller_continue_io(struct isci_request *ireq); |
cc9203bf DW |
636 | int isci_host_scan_finished(struct Scsi_Host *, unsigned long); |
637 | void isci_host_scan_start(struct Scsi_Host *); | |
312e0c24 DW |
638 | u16 isci_alloc_tag(struct isci_host *ihost); |
639 | enum sci_status isci_free_tag(struct isci_host *ihost, u16 io_tag); | |
640 | void isci_tci_free(struct isci_host *ihost, u16 tci); | |
6f231dda DW |
641 | |
642 | int isci_host_init(struct isci_host *); | |
643 | ||
644 | void isci_host_init_controller_names( | |
645 | struct isci_host *isci_host, | |
646 | unsigned int controller_idx); | |
647 | ||
648 | void isci_host_deinit( | |
649 | struct isci_host *); | |
650 | ||
651 | void isci_host_port_link_up( | |
652 | struct isci_host *, | |
653 | struct scic_sds_port *, | |
654 | struct scic_sds_phy *); | |
655 | int isci_host_dev_found(struct domain_device *); | |
656 | ||
657 | void isci_host_remote_device_start_complete( | |
658 | struct isci_host *, | |
659 | struct isci_remote_device *, | |
660 | enum sci_status); | |
661 | ||
cc9203bf DW |
662 | void scic_controller_disable_interrupts( |
663 | struct scic_sds_controller *scic); | |
664 | ||
665 | enum sci_status scic_controller_start_io( | |
666 | struct scic_sds_controller *scic, | |
667 | struct scic_sds_remote_device *remote_device, | |
5076a1a9 | 668 | struct isci_request *ireq); |
cc9203bf DW |
669 | |
670 | enum sci_task_status scic_controller_start_task( | |
671 | struct scic_sds_controller *scic, | |
672 | struct scic_sds_remote_device *remote_device, | |
5076a1a9 | 673 | struct isci_request *ireq); |
cc9203bf DW |
674 | |
675 | enum sci_status scic_controller_terminate_request( | |
676 | struct scic_sds_controller *scic, | |
677 | struct scic_sds_remote_device *remote_device, | |
5076a1a9 | 678 | struct isci_request *ireq); |
cc9203bf DW |
679 | |
680 | enum sci_status scic_controller_complete_io( | |
681 | struct scic_sds_controller *scic, | |
682 | struct scic_sds_remote_device *remote_device, | |
5076a1a9 | 683 | struct isci_request *ireq); |
cc9203bf | 684 | |
e2f8db50 DW |
685 | void scic_sds_port_configuration_agent_construct( |
686 | struct scic_sds_port_configuration_agent *port_agent); | |
687 | ||
688 | enum sci_status scic_sds_port_configuration_agent_initialize( | |
689 | struct scic_sds_controller *controller, | |
690 | struct scic_sds_port_configuration_agent *port_agent); | |
cc9203bf | 691 | #endif |