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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 | */ | |
55 | ||
56 | #include <linux/kernel.h> | |
57 | #include <linux/init.h> | |
58 | #include <linux/module.h> | |
59 | #include <asm/string.h> | |
60 | #include "isci.h" | |
61 | #include "task.h" | |
62 | #include "sci_controller_constants.h" | |
63 | #include "scic_remote_device.h" | |
64 | #include "sci_environment.h" | |
65 | ||
66 | static struct scsi_transport_template *isci_transport_template; | |
67 | struct kmem_cache *isci_kmem_cache; | |
68 | ||
69 | static DEFINE_PCI_DEVICE_TABLE(isci_id_table) = { | |
70 | { PCI_VDEVICE(INTEL, 0x1D61),}, | |
71 | { PCI_VDEVICE(INTEL, 0x1D63),}, | |
72 | { PCI_VDEVICE(INTEL, 0x1D65),}, | |
73 | { PCI_VDEVICE(INTEL, 0x1D67),}, | |
74 | { PCI_VDEVICE(INTEL, 0x1D69),}, | |
75 | { PCI_VDEVICE(INTEL, 0x1D6B),}, | |
76 | { PCI_VDEVICE(INTEL, 0x1D60),}, | |
77 | { PCI_VDEVICE(INTEL, 0x1D62),}, | |
78 | { PCI_VDEVICE(INTEL, 0x1D64),}, | |
79 | { PCI_VDEVICE(INTEL, 0x1D66),}, | |
80 | { PCI_VDEVICE(INTEL, 0x1D68),}, | |
81 | { PCI_VDEVICE(INTEL, 0x1D6A),}, | |
82 | {} | |
83 | }; | |
84 | ||
85 | static int __devinit isci_pci_probe( | |
86 | struct pci_dev *pdev, | |
87 | const struct pci_device_id *device_id_p); | |
88 | ||
89 | static void __devexit isci_pci_remove(struct pci_dev *pdev); | |
90 | ||
91 | MODULE_DEVICE_TABLE(pci, isci_id_table); | |
92 | ||
93 | static struct pci_driver isci_pci_driver = { | |
94 | .name = DRV_NAME, | |
95 | .id_table = isci_id_table, | |
96 | .probe = isci_pci_probe, | |
97 | .remove = __devexit_p(isci_pci_remove), | |
98 | }; | |
99 | ||
100 | /* linux isci specific settings */ | |
6f231dda DW |
101 | |
102 | #if defined(CONFIG_PBG_HBA_A0) | |
103 | int isci_si_rev = ISCI_SI_REVA0; | |
104 | #elif defined(CONFIG_PBG_HBA_A2) | |
105 | int isci_si_rev = ISCI_SI_REVA2; | |
106 | #else | |
107 | int isci_si_rev = ISCI_SI_REVB0; | |
108 | #endif | |
109 | module_param(isci_si_rev, int, S_IRUGO | S_IWUSR); | |
110 | MODULE_PARM_DESC(isci_si_rev, "override default si rev (0: A0 1: A2 2: B0)"); | |
111 | ||
112 | static struct scsi_host_template isci_sht = { | |
113 | ||
114 | .module = THIS_MODULE, | |
115 | .name = DRV_NAME, | |
116 | .queuecommand = sas_queuecommand, | |
117 | .target_alloc = sas_target_alloc, | |
118 | .slave_configure = sas_slave_configure, | |
119 | .slave_destroy = sas_slave_destroy, | |
120 | .scan_finished = isci_host_scan_finished, | |
121 | .scan_start = isci_host_scan_start, | |
122 | .change_queue_depth = sas_change_queue_depth, | |
123 | .change_queue_type = sas_change_queue_type, | |
124 | .bios_param = sas_bios_param, | |
125 | .can_queue = ISCI_CAN_QUEUE_VAL, | |
126 | .cmd_per_lun = 1, | |
127 | .this_id = -1, | |
128 | .sg_tablesize = SG_ALL, | |
129 | .max_sectors = SCSI_DEFAULT_MAX_SECTORS, | |
130 | .use_clustering = ENABLE_CLUSTERING, | |
131 | .eh_device_reset_handler = sas_eh_device_reset_handler, | |
132 | .eh_bus_reset_handler = isci_bus_reset_handler, | |
133 | .slave_alloc = sas_slave_alloc, | |
134 | .target_destroy = sas_target_destroy, | |
135 | .ioctl = sas_ioctl, | |
136 | }; | |
137 | ||
138 | static struct sas_domain_function_template isci_transport_ops = { | |
139 | ||
140 | /* The class calls these to notify the LLDD of an event. */ | |
141 | .lldd_port_formed = isci_port_formed, | |
142 | .lldd_port_deformed = isci_port_deformed, | |
143 | ||
144 | /* The class calls these when a device is found or gone. */ | |
145 | .lldd_dev_found = isci_remote_device_found, | |
146 | .lldd_dev_gone = isci_remote_device_gone, | |
147 | ||
148 | .lldd_execute_task = isci_task_execute_task, | |
149 | /* Task Management Functions. Must be called from process context. */ | |
150 | .lldd_abort_task = isci_task_abort_task, | |
151 | .lldd_abort_task_set = isci_task_abort_task_set, | |
152 | .lldd_clear_aca = isci_task_clear_aca, | |
153 | .lldd_clear_task_set = isci_task_clear_task_set, | |
154 | .lldd_I_T_nexus_reset = isci_task_I_T_nexus_reset, | |
155 | .lldd_lu_reset = isci_task_lu_reset, | |
156 | .lldd_query_task = isci_task_query_task, | |
157 | ||
158 | /* Port and Adapter management */ | |
159 | .lldd_clear_nexus_port = isci_task_clear_nexus_port, | |
160 | .lldd_clear_nexus_ha = isci_task_clear_nexus_ha, | |
161 | ||
162 | /* Phy management */ | |
163 | .lldd_control_phy = isci_phy_control, | |
164 | }; | |
165 | ||
166 | ||
167 | /****************************************************************************** | |
168 | * P R O T E C T E D M E T H O D S | |
169 | ******************************************************************************/ | |
170 | ||
171 | ||
172 | ||
173 | /** | |
174 | * isci_register_sas_ha() - This method initializes various lldd | |
175 | * specific members of the sas_ha struct and calls the libsas | |
176 | * sas_register_ha() function. | |
177 | * @isci_host: This parameter specifies the lldd specific wrapper for the | |
178 | * libsas sas_ha struct. | |
179 | * | |
180 | * This method returns an error code indicating sucess or failure. The user | |
181 | * should check for possible memory allocation error return otherwise, a zero | |
182 | * indicates success. | |
183 | */ | |
184 | static int isci_register_sas_ha(struct isci_host *isci_host) | |
185 | { | |
186 | int i; | |
187 | struct sas_ha_struct *sas_ha = &(isci_host->sas_ha); | |
188 | struct asd_sas_phy **sas_phys; | |
189 | struct asd_sas_port **sas_ports; | |
190 | ||
191 | sas_phys = devm_kzalloc(&isci_host->pdev->dev, | |
192 | SCI_MAX_PHYS * sizeof(void *), | |
193 | GFP_KERNEL); | |
194 | if (!sas_phys) | |
195 | return -ENOMEM; | |
196 | ||
197 | sas_ports = devm_kzalloc(&isci_host->pdev->dev, | |
198 | SCI_MAX_PORTS * sizeof(void *), | |
199 | GFP_KERNEL); | |
200 | if (!sas_ports) | |
201 | return -ENOMEM; | |
202 | ||
203 | /*----------------- Libsas Initialization Stuff---------------------- | |
204 | * Set various fields in the sas_ha struct: | |
205 | */ | |
206 | ||
207 | sas_ha->sas_ha_name = DRV_NAME; | |
208 | sas_ha->lldd_module = THIS_MODULE; | |
209 | sas_ha->sas_addr = &(isci_host->sas_addr[0]); | |
210 | ||
211 | /* set the array of phy and port structs. */ | |
212 | for (i = 0; i < SCI_MAX_PHYS; i++) { | |
213 | sas_phys[i] = &(isci_host->phys[i].sas_phy); | |
214 | sas_ports[i] = &(isci_host->sas_ports[i]); | |
215 | } | |
216 | ||
217 | sas_ha->sas_phy = sas_phys; | |
218 | sas_ha->sas_port = sas_ports; | |
219 | sas_ha->num_phys = SCI_MAX_PHYS; | |
220 | ||
221 | sas_ha->lldd_queue_size = ISCI_CAN_QUEUE_VAL; | |
222 | sas_ha->lldd_max_execute_num = 1; | |
223 | sas_ha->strict_wide_ports = 1; | |
224 | ||
225 | sas_register_ha(sas_ha); | |
226 | ||
227 | return 0; | |
228 | } | |
229 | ||
230 | static void isci_unregister_sas_ha(struct isci_host *isci_host) | |
231 | { | |
232 | if (!isci_host) | |
233 | return; | |
234 | ||
235 | sas_unregister_ha(&(isci_host->sas_ha)); | |
236 | ||
237 | sas_remove_host(isci_host->shost); | |
238 | scsi_remove_host(isci_host->shost); | |
239 | scsi_host_put(isci_host->shost); | |
240 | } | |
241 | ||
242 | static int __devinit isci_pci_init(struct pci_dev *pdev) | |
243 | { | |
244 | int err, bar_num, bar_mask; | |
245 | void __iomem * const *iomap; | |
246 | ||
247 | err = pcim_enable_device(pdev); | |
248 | if (err) { | |
249 | dev_err(&pdev->dev, | |
250 | "failed enable PCI device %s!\n", | |
251 | pci_name(pdev)); | |
252 | return err; | |
253 | } | |
254 | ||
255 | for (bar_num = 0; bar_num < SCI_PCI_BAR_COUNT; bar_num++) | |
256 | bar_mask |= 1 << (bar_num * 2); | |
257 | ||
258 | err = pcim_iomap_regions(pdev, bar_mask, DRV_NAME); | |
259 | if (err) | |
260 | return err; | |
261 | ||
262 | iomap = pcim_iomap_table(pdev); | |
263 | if (!iomap) | |
264 | return -ENOMEM; | |
265 | ||
266 | pci_set_master(pdev); | |
267 | ||
268 | err = pci_set_dma_mask(pdev, DMA_BIT_MASK(64)); | |
269 | if (err) { | |
270 | err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); | |
271 | if (err) | |
272 | return err; | |
273 | } | |
274 | ||
275 | err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)); | |
276 | if (err) { | |
277 | err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)); | |
278 | if (err) | |
279 | return err; | |
280 | } | |
281 | ||
282 | return 0; | |
283 | } | |
284 | ||
285 | static struct isci_host *isci_host_by_id(struct pci_dev *pdev, int id) | |
286 | { | |
287 | struct isci_host *h; | |
288 | ||
289 | for_each_isci_host(h, pdev) | |
290 | if (h->id == id) | |
291 | return h; | |
292 | return NULL; | |
293 | } | |
294 | ||
295 | static int num_controllers(struct pci_dev *pdev) | |
296 | { | |
297 | /* bar size alone can tell us if we are running with a dual controller | |
298 | * part, no need to trust revision ids that might be under broken firmware | |
299 | * control | |
300 | */ | |
301 | resource_size_t scu_bar_size = pci_resource_len(pdev, SCI_SCU_BAR*2); | |
302 | resource_size_t smu_bar_size = pci_resource_len(pdev, SCI_SMU_BAR*2); | |
303 | ||
304 | if (scu_bar_size >= SCI_SCU_BAR_SIZE*SCI_MAX_CONTROLLERS && | |
305 | smu_bar_size >= SCI_SMU_BAR_SIZE*SCI_MAX_CONTROLLERS) | |
306 | return SCI_MAX_CONTROLLERS; | |
307 | else | |
308 | return 1; | |
309 | } | |
310 | ||
311 | static int isci_setup_interrupts(struct pci_dev *pdev) | |
312 | { | |
313 | int err, i, num_msix; | |
314 | struct isci_pci_info *pci_info = to_pci_info(pdev); | |
315 | ||
316 | /* | |
317 | * Determine the number of vectors associated with this | |
318 | * PCI function. | |
319 | */ | |
320 | num_msix = num_controllers(pdev) * SCI_NUM_MSI_X_INT; | |
321 | ||
322 | for (i = 0; i < num_msix; i++) | |
323 | pci_info->msix_entries[i].entry = i; | |
324 | ||
325 | err = pci_enable_msix(pdev, pci_info->msix_entries, num_msix); | |
326 | if (err) | |
327 | goto intx; | |
328 | ||
329 | for (i = 0; i < num_msix; i++) { | |
330 | int id = i / SCI_NUM_MSI_X_INT; | |
331 | struct msix_entry *msix = &pci_info->msix_entries[i]; | |
332 | struct isci_host *isci_host = isci_host_by_id(pdev, id); | |
333 | ||
334 | BUG_ON(!isci_host); | |
335 | ||
336 | /* @todo: need to handle error case. */ | |
337 | err = devm_request_irq(&pdev->dev, msix->vector, isci_isr, 0, | |
338 | DRV_NAME"-msix", isci_host); | |
339 | if (!err) | |
340 | continue; | |
341 | ||
342 | dev_info(&pdev->dev, "msix setup failed falling back to intx\n"); | |
343 | while (i--) { | |
344 | id = i / SCI_NUM_MSI_X_INT; | |
345 | isci_host = isci_host_by_id(pdev, id); | |
346 | msix = &pci_info->msix_entries[i]; | |
347 | devm_free_irq(&pdev->dev, msix->vector, isci_host); | |
348 | } | |
349 | pci_disable_msix(pdev); | |
350 | goto intx; | |
351 | } | |
352 | ||
353 | return 0; | |
354 | ||
355 | intx: | |
356 | err = devm_request_irq(&pdev->dev, pdev->irq, isci_legacy_isr, | |
357 | IRQF_SHARED, DRV_NAME"-intx", pdev); | |
358 | ||
359 | return err; | |
360 | } | |
361 | ||
362 | /** | |
363 | * isci_parse_oem_parameters() - This method will take OEM parameters | |
364 | * from the module init parameters and copy them to oem_params. This will | |
365 | * only copy values that are not set to the module parameter default values | |
366 | * @oem_parameters: This parameter specifies the controller default OEM | |
367 | * parameters. It is expected that this has been initialized to the default | |
368 | * parameters for the controller | |
369 | * | |
370 | * | |
371 | */ | |
372 | enum sci_status isci_parse_oem_parameters(union scic_oem_parameters *oem_params, | |
373 | int scu_index, | |
374 | struct isci_firmware *fw) | |
375 | { | |
376 | int i; | |
377 | ||
378 | /* check for valid inputs */ | |
379 | if (!(scu_index >= 0 | |
380 | && scu_index < SCI_MAX_CONTROLLERS | |
381 | && oem_params != NULL)) { | |
382 | return SCI_FAILURE; | |
383 | } | |
384 | ||
385 | for (i = 0; i < SCI_MAX_PHYS; i++) { | |
386 | int array_idx = i + (SCI_MAX_PHYS * scu_index); | |
387 | u64 sas_addr = fw->sas_addrs[array_idx]; | |
388 | ||
389 | if (sas_addr != 0) { | |
390 | oem_params->sds1.phys[i].sas_address.low = | |
391 | (u32)(sas_addr & 0xffffffff); | |
392 | oem_params->sds1.phys[i].sas_address.high = | |
393 | (u32)((sas_addr >> 32) & 0xffffffff); | |
394 | } | |
395 | } | |
396 | ||
397 | for (i = 0; i < SCI_MAX_PORTS; i++) { | |
398 | int array_idx = i + (SCI_MAX_PORTS * scu_index); | |
399 | u32 pmask = fw->phy_masks[array_idx]; | |
400 | ||
401 | oem_params->sds1.ports[i].phy_mask = pmask; | |
402 | } | |
403 | ||
404 | return SCI_SUCCESS; | |
405 | } | |
406 | ||
407 | /** | |
408 | * isci_parse_user_parameters() - This method will take user parameters | |
409 | * from the module init parameters and copy them to user_params. This will | |
410 | * only copy values that are not set to the module parameter default values | |
411 | * @user_parameters: This parameter specifies the controller default user | |
412 | * parameters. It is expected that this has been initialized to the default | |
413 | * parameters for the controller | |
414 | * | |
415 | * | |
416 | */ | |
417 | enum sci_status isci_parse_user_parameters( | |
418 | union scic_user_parameters *user_params, | |
419 | int scu_index, | |
420 | struct isci_firmware *fw) | |
421 | { | |
422 | int i; | |
423 | ||
424 | if (!(scu_index >= 0 | |
425 | && scu_index < SCI_MAX_CONTROLLERS | |
426 | && user_params != NULL)) { | |
427 | return SCI_FAILURE; | |
428 | } | |
429 | ||
430 | for (i = 0; i < SCI_MAX_PORTS; i++) { | |
431 | int array_idx = i + (SCI_MAX_PORTS * scu_index); | |
432 | u32 gen = fw->phy_gens[array_idx]; | |
433 | ||
434 | user_params->sds1.phys[i].max_speed_generation = gen; | |
435 | ||
436 | } | |
437 | ||
438 | return SCI_SUCCESS; | |
439 | } | |
440 | ||
441 | static struct isci_host *isci_host_alloc(struct pci_dev *pdev, int id) | |
442 | { | |
443 | struct isci_host *isci_host; | |
444 | struct Scsi_Host *shost; | |
445 | int err; | |
446 | ||
447 | isci_host = devm_kzalloc(&pdev->dev, sizeof(*isci_host), GFP_KERNEL); | |
448 | if (!isci_host) | |
449 | return NULL; | |
450 | ||
451 | isci_host->pdev = pdev; | |
452 | isci_host->id = id; | |
453 | ||
454 | shost = scsi_host_alloc(&isci_sht, sizeof(void *)); | |
455 | if (!shost) | |
456 | return NULL; | |
457 | isci_host->shost = shost; | |
458 | ||
459 | err = isci_host_init(isci_host); | |
460 | if (err) | |
461 | goto err_shost; | |
462 | ||
463 | SHOST_TO_SAS_HA(shost) = &isci_host->sas_ha; | |
464 | isci_host->sas_ha.core.shost = shost; | |
465 | shost->transportt = isci_transport_template; | |
466 | ||
467 | shost->max_id = ~0; | |
468 | shost->max_lun = ~0; | |
469 | shost->max_cmd_len = MAX_COMMAND_SIZE; | |
470 | ||
471 | err = scsi_add_host(shost, &pdev->dev); | |
472 | if (err) | |
473 | goto err_shost; | |
474 | ||
475 | err = isci_register_sas_ha(isci_host); | |
476 | if (err) | |
477 | goto err_shost_remove; | |
478 | ||
479 | return isci_host; | |
480 | ||
481 | err_shost_remove: | |
482 | scsi_remove_host(shost); | |
483 | err_shost: | |
484 | scsi_host_put(shost); | |
485 | ||
486 | return NULL; | |
487 | } | |
488 | ||
489 | static void check_si_rev(struct pci_dev *pdev) | |
490 | { | |
491 | if (num_controllers(pdev) > 1) | |
492 | isci_si_rev = ISCI_SI_REVB0; | |
493 | else { | |
494 | switch (pdev->revision) { | |
495 | case 0: | |
496 | case 1: | |
497 | /* if the id is ambiguous don't update isci_si_rev */ | |
498 | break; | |
499 | case 3: | |
500 | isci_si_rev = ISCI_SI_REVA2; | |
501 | break; | |
502 | default: | |
503 | case 4: | |
504 | isci_si_rev = ISCI_SI_REVB0; | |
505 | break; | |
506 | } | |
507 | } | |
508 | ||
509 | dev_info(&pdev->dev, "driver configured for %s silicon (rev: %d)\n", | |
510 | isci_si_rev == ISCI_SI_REVA0 ? "A0" : | |
511 | isci_si_rev == ISCI_SI_REVA2 ? "A2" : "B0", pdev->revision); | |
512 | ||
513 | } | |
514 | ||
515 | static int __devinit isci_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id) | |
516 | { | |
517 | struct isci_pci_info *pci_info; | |
518 | int err, i; | |
519 | struct isci_host *isci_host; | |
520 | ||
521 | check_si_rev(pdev); | |
522 | ||
523 | pci_info = devm_kzalloc(&pdev->dev, sizeof(*pci_info), GFP_KERNEL); | |
524 | if (!pci_info) | |
525 | return -ENOMEM; | |
526 | pci_set_drvdata(pdev, pci_info); | |
527 | ||
528 | err = isci_pci_init(pdev); | |
529 | if (err) | |
530 | return err; | |
531 | ||
532 | for (i = 0; i < num_controllers(pdev); i++) { | |
533 | struct isci_host *h = isci_host_alloc(pdev, i); | |
534 | ||
535 | if (!h) { | |
536 | err = -ENOMEM; | |
537 | goto err_host_alloc; | |
538 | } | |
539 | ||
540 | h->next = pci_info->hosts; | |
541 | pci_info->hosts = h; | |
542 | } | |
543 | ||
544 | err = isci_setup_interrupts(pdev); | |
545 | if (err) | |
546 | goto err_host_alloc; | |
547 | ||
548 | for_each_isci_host(isci_host, pdev) | |
549 | scsi_scan_host(isci_host->shost); | |
550 | ||
551 | return 0; | |
552 | ||
553 | err_host_alloc: | |
554 | for_each_isci_host(isci_host, pdev) | |
555 | isci_unregister_sas_ha(isci_host); | |
556 | return err; | |
557 | } | |
558 | ||
559 | static void __devexit isci_pci_remove(struct pci_dev *pdev) | |
560 | { | |
561 | struct isci_host *isci_host; | |
562 | ||
563 | for_each_isci_host(isci_host, pdev) { | |
564 | isci_unregister_sas_ha(isci_host); | |
565 | isci_host_deinit(isci_host); | |
566 | scic_controller_disable_interrupts(isci_host->core_controller); | |
567 | } | |
568 | } | |
569 | ||
570 | static __init int isci_init(void) | |
571 | { | |
572 | int err = -ENOMEM; | |
573 | ||
574 | pr_info("%s: Intel(R) C600 SAS Controller Driver\n", DRV_NAME); | |
575 | ||
576 | isci_kmem_cache = kmem_cache_create(DRV_NAME, | |
577 | sizeof(struct isci_remote_device) + | |
578 | scic_remote_device_get_object_size(), | |
579 | 0, 0, NULL); | |
580 | if (!isci_kmem_cache) | |
581 | return err; | |
582 | ||
583 | isci_transport_template = sas_domain_attach_transport(&isci_transport_ops); | |
584 | if (!isci_transport_template) | |
585 | goto err_kmem; | |
586 | ||
587 | err = pci_register_driver(&isci_pci_driver); | |
588 | if (err) | |
589 | goto err_sas; | |
590 | ||
591 | return 0; | |
592 | ||
593 | err_sas: | |
594 | sas_release_transport(isci_transport_template); | |
595 | err_kmem: | |
596 | kmem_cache_destroy(isci_kmem_cache); | |
597 | ||
598 | return err; | |
599 | } | |
600 | ||
601 | static __exit void isci_exit(void) | |
602 | { | |
603 | pci_unregister_driver(&isci_pci_driver); | |
604 | sas_release_transport(isci_transport_template); | |
605 | kmem_cache_destroy(isci_kmem_cache); | |
606 | } | |
607 | ||
608 | MODULE_LICENSE("Dual BSD/GPL"); | |
609 | MODULE_FIRMWARE(ISCI_FW_NAME); | |
610 | module_init(isci_init); | |
611 | module_exit(isci_exit); |