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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> | |
d044af17 DW |
59 | #include <linux/firmware.h> |
60 | #include <linux/efi.h> | |
6f231dda DW |
61 | #include <asm/string.h> |
62 | #include "isci.h" | |
63 | #include "task.h" | |
64 | #include "sci_controller_constants.h" | |
6f231dda | 65 | #include "sci_environment.h" |
d044af17 | 66 | #include "probe_roms.h" |
6f231dda DW |
67 | |
68 | static struct scsi_transport_template *isci_transport_template; | |
6f231dda DW |
69 | |
70 | static DEFINE_PCI_DEVICE_TABLE(isci_id_table) = { | |
71 | { PCI_VDEVICE(INTEL, 0x1D61),}, | |
72 | { PCI_VDEVICE(INTEL, 0x1D63),}, | |
73 | { PCI_VDEVICE(INTEL, 0x1D65),}, | |
74 | { PCI_VDEVICE(INTEL, 0x1D67),}, | |
75 | { PCI_VDEVICE(INTEL, 0x1D69),}, | |
76 | { PCI_VDEVICE(INTEL, 0x1D6B),}, | |
77 | { PCI_VDEVICE(INTEL, 0x1D60),}, | |
78 | { PCI_VDEVICE(INTEL, 0x1D62),}, | |
79 | { PCI_VDEVICE(INTEL, 0x1D64),}, | |
80 | { PCI_VDEVICE(INTEL, 0x1D66),}, | |
81 | { PCI_VDEVICE(INTEL, 0x1D68),}, | |
82 | { PCI_VDEVICE(INTEL, 0x1D6A),}, | |
83 | {} | |
84 | }; | |
85 | ||
6f231dda DW |
86 | MODULE_DEVICE_TABLE(pci, isci_id_table); |
87 | ||
6f231dda | 88 | /* linux isci specific settings */ |
6f231dda | 89 | |
6f231dda | 90 | int isci_si_rev = ISCI_SI_REVA2; |
b5f18a20 | 91 | module_param(isci_si_rev, int, 0); |
c6d42257 | 92 | MODULE_PARM_DESC(isci_si_rev, "(deprecated) override default si rev (0: A0 1: A2 2: B0)"); |
6f231dda | 93 | |
b5f18a20 DJ |
94 | unsigned char no_outbound_task_to = 20; |
95 | module_param(no_outbound_task_to, byte, 0); | |
96 | MODULE_PARM_DESC(no_outbound_task_to, "No Outbound Task Timeout (1us incr)"); | |
97 | ||
98 | u16 ssp_max_occ_to = 20; | |
99 | module_param(ssp_max_occ_to, ushort, 0); | |
100 | MODULE_PARM_DESC(ssp_max_occ_to, "SSP Max occupancy timeout (100us incr)"); | |
101 | ||
102 | u16 stp_max_occ_to = 5; | |
103 | module_param(stp_max_occ_to, ushort, 0); | |
104 | MODULE_PARM_DESC(stp_max_occ_to, "STP Max occupancy timeout (100us incr)"); | |
105 | ||
106 | u16 ssp_inactive_to = 5; | |
107 | module_param(ssp_inactive_to, ushort, 0); | |
108 | MODULE_PARM_DESC(ssp_inactive_to, "SSP inactivity timeout (100us incr)"); | |
109 | ||
110 | u16 stp_inactive_to = 5; | |
111 | module_param(stp_inactive_to, ushort, 0); | |
112 | MODULE_PARM_DESC(stp_inactive_to, "STP inactivity timeout (100us incr)"); | |
113 | ||
114 | unsigned char phy_gen = 3; | |
115 | module_param(phy_gen, byte, 0); | |
116 | MODULE_PARM_DESC(phy_gen, "PHY generation (1: 1.5Gbps 2: 3.0Gbps 3: 6.0Gbps)"); | |
117 | ||
118 | unsigned char max_concurr_spinup = 1; | |
119 | module_param(max_concurr_spinup, byte, 0); | |
120 | MODULE_PARM_DESC(max_concurr_spinup, "Max concurrent device spinup"); | |
121 | ||
6f231dda DW |
122 | static struct scsi_host_template isci_sht = { |
123 | ||
124 | .module = THIS_MODULE, | |
125 | .name = DRV_NAME, | |
92cd5115 | 126 | .proc_name = DRV_NAME, |
6f231dda DW |
127 | .queuecommand = sas_queuecommand, |
128 | .target_alloc = sas_target_alloc, | |
129 | .slave_configure = sas_slave_configure, | |
130 | .slave_destroy = sas_slave_destroy, | |
131 | .scan_finished = isci_host_scan_finished, | |
132 | .scan_start = isci_host_scan_start, | |
133 | .change_queue_depth = sas_change_queue_depth, | |
134 | .change_queue_type = sas_change_queue_type, | |
135 | .bios_param = sas_bios_param, | |
136 | .can_queue = ISCI_CAN_QUEUE_VAL, | |
137 | .cmd_per_lun = 1, | |
138 | .this_id = -1, | |
139 | .sg_tablesize = SG_ALL, | |
140 | .max_sectors = SCSI_DEFAULT_MAX_SECTORS, | |
141 | .use_clustering = ENABLE_CLUSTERING, | |
142 | .eh_device_reset_handler = sas_eh_device_reset_handler, | |
143 | .eh_bus_reset_handler = isci_bus_reset_handler, | |
144 | .slave_alloc = sas_slave_alloc, | |
145 | .target_destroy = sas_target_destroy, | |
146 | .ioctl = sas_ioctl, | |
147 | }; | |
148 | ||
149 | static struct sas_domain_function_template isci_transport_ops = { | |
150 | ||
151 | /* The class calls these to notify the LLDD of an event. */ | |
152 | .lldd_port_formed = isci_port_formed, | |
153 | .lldd_port_deformed = isci_port_deformed, | |
154 | ||
155 | /* The class calls these when a device is found or gone. */ | |
156 | .lldd_dev_found = isci_remote_device_found, | |
157 | .lldd_dev_gone = isci_remote_device_gone, | |
158 | ||
159 | .lldd_execute_task = isci_task_execute_task, | |
160 | /* Task Management Functions. Must be called from process context. */ | |
161 | .lldd_abort_task = isci_task_abort_task, | |
162 | .lldd_abort_task_set = isci_task_abort_task_set, | |
163 | .lldd_clear_aca = isci_task_clear_aca, | |
164 | .lldd_clear_task_set = isci_task_clear_task_set, | |
165 | .lldd_I_T_nexus_reset = isci_task_I_T_nexus_reset, | |
166 | .lldd_lu_reset = isci_task_lu_reset, | |
167 | .lldd_query_task = isci_task_query_task, | |
168 | ||
169 | /* Port and Adapter management */ | |
170 | .lldd_clear_nexus_port = isci_task_clear_nexus_port, | |
171 | .lldd_clear_nexus_ha = isci_task_clear_nexus_ha, | |
172 | ||
173 | /* Phy management */ | |
174 | .lldd_control_phy = isci_phy_control, | |
175 | }; | |
176 | ||
177 | ||
178 | /****************************************************************************** | |
179 | * P R O T E C T E D M E T H O D S | |
180 | ******************************************************************************/ | |
181 | ||
182 | ||
183 | ||
184 | /** | |
185 | * isci_register_sas_ha() - This method initializes various lldd | |
186 | * specific members of the sas_ha struct and calls the libsas | |
187 | * sas_register_ha() function. | |
188 | * @isci_host: This parameter specifies the lldd specific wrapper for the | |
189 | * libsas sas_ha struct. | |
190 | * | |
191 | * This method returns an error code indicating sucess or failure. The user | |
192 | * should check for possible memory allocation error return otherwise, a zero | |
193 | * indicates success. | |
194 | */ | |
195 | static int isci_register_sas_ha(struct isci_host *isci_host) | |
196 | { | |
197 | int i; | |
198 | struct sas_ha_struct *sas_ha = &(isci_host->sas_ha); | |
199 | struct asd_sas_phy **sas_phys; | |
200 | struct asd_sas_port **sas_ports; | |
201 | ||
202 | sas_phys = devm_kzalloc(&isci_host->pdev->dev, | |
203 | SCI_MAX_PHYS * sizeof(void *), | |
204 | GFP_KERNEL); | |
205 | if (!sas_phys) | |
206 | return -ENOMEM; | |
207 | ||
208 | sas_ports = devm_kzalloc(&isci_host->pdev->dev, | |
209 | SCI_MAX_PORTS * sizeof(void *), | |
210 | GFP_KERNEL); | |
211 | if (!sas_ports) | |
212 | return -ENOMEM; | |
213 | ||
214 | /*----------------- Libsas Initialization Stuff---------------------- | |
215 | * Set various fields in the sas_ha struct: | |
216 | */ | |
217 | ||
218 | sas_ha->sas_ha_name = DRV_NAME; | |
219 | sas_ha->lldd_module = THIS_MODULE; | |
150fc6fc | 220 | sas_ha->sas_addr = &isci_host->phys[0].sas_addr[0]; |
6f231dda DW |
221 | |
222 | /* set the array of phy and port structs. */ | |
223 | for (i = 0; i < SCI_MAX_PHYS; i++) { | |
224 | sas_phys[i] = &(isci_host->phys[i].sas_phy); | |
225 | sas_ports[i] = &(isci_host->sas_ports[i]); | |
226 | } | |
227 | ||
228 | sas_ha->sas_phy = sas_phys; | |
229 | sas_ha->sas_port = sas_ports; | |
230 | sas_ha->num_phys = SCI_MAX_PHYS; | |
231 | ||
232 | sas_ha->lldd_queue_size = ISCI_CAN_QUEUE_VAL; | |
233 | sas_ha->lldd_max_execute_num = 1; | |
234 | sas_ha->strict_wide_ports = 1; | |
235 | ||
236 | sas_register_ha(sas_ha); | |
237 | ||
238 | return 0; | |
239 | } | |
240 | ||
34cad85d | 241 | static ssize_t isci_show_id(struct device *dev, struct device_attribute *attr, char *buf) |
6f231dda | 242 | { |
34cad85d DW |
243 | struct Scsi_Host *shost = container_of(dev, typeof(*shost), shost_dev); |
244 | struct sas_ha_struct *sas_ha = SHOST_TO_SAS_HA(shost); | |
245 | struct isci_host *ihost = container_of(sas_ha, typeof(*ihost), sas_ha); | |
246 | ||
247 | return snprintf(buf, PAGE_SIZE, "%d\n", ihost->id); | |
248 | } | |
249 | ||
250 | static DEVICE_ATTR(isci_id, S_IRUGO, isci_show_id, NULL); | |
251 | ||
252 | static void isci_unregister(struct isci_host *isci_host) | |
253 | { | |
254 | struct Scsi_Host *shost; | |
255 | ||
6f231dda DW |
256 | if (!isci_host) |
257 | return; | |
258 | ||
34cad85d DW |
259 | shost = isci_host->shost; |
260 | device_remove_file(&shost->shost_dev, &dev_attr_isci_id); | |
261 | ||
262 | sas_unregister_ha(&isci_host->sas_ha); | |
6f231dda DW |
263 | |
264 | sas_remove_host(isci_host->shost); | |
265 | scsi_remove_host(isci_host->shost); | |
266 | scsi_host_put(isci_host->shost); | |
267 | } | |
268 | ||
269 | static int __devinit isci_pci_init(struct pci_dev *pdev) | |
270 | { | |
cc3dbd0a | 271 | int err, bar_num, bar_mask = 0; |
6f231dda DW |
272 | void __iomem * const *iomap; |
273 | ||
274 | err = pcim_enable_device(pdev); | |
275 | if (err) { | |
276 | dev_err(&pdev->dev, | |
277 | "failed enable PCI device %s!\n", | |
278 | pci_name(pdev)); | |
279 | return err; | |
280 | } | |
281 | ||
282 | for (bar_num = 0; bar_num < SCI_PCI_BAR_COUNT; bar_num++) | |
283 | bar_mask |= 1 << (bar_num * 2); | |
284 | ||
285 | err = pcim_iomap_regions(pdev, bar_mask, DRV_NAME); | |
286 | if (err) | |
287 | return err; | |
288 | ||
289 | iomap = pcim_iomap_table(pdev); | |
290 | if (!iomap) | |
291 | return -ENOMEM; | |
292 | ||
293 | pci_set_master(pdev); | |
294 | ||
295 | err = pci_set_dma_mask(pdev, DMA_BIT_MASK(64)); | |
296 | if (err) { | |
297 | err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); | |
298 | if (err) | |
299 | return err; | |
300 | } | |
301 | ||
302 | err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)); | |
303 | if (err) { | |
304 | err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)); | |
305 | if (err) | |
306 | return err; | |
307 | } | |
308 | ||
309 | return 0; | |
310 | } | |
311 | ||
6f231dda DW |
312 | static int num_controllers(struct pci_dev *pdev) |
313 | { | |
314 | /* bar size alone can tell us if we are running with a dual controller | |
315 | * part, no need to trust revision ids that might be under broken firmware | |
316 | * control | |
317 | */ | |
318 | resource_size_t scu_bar_size = pci_resource_len(pdev, SCI_SCU_BAR*2); | |
319 | resource_size_t smu_bar_size = pci_resource_len(pdev, SCI_SMU_BAR*2); | |
f942f32e | 320 | |
6f231dda DW |
321 | if (scu_bar_size >= SCI_SCU_BAR_SIZE*SCI_MAX_CONTROLLERS && |
322 | smu_bar_size >= SCI_SMU_BAR_SIZE*SCI_MAX_CONTROLLERS) | |
323 | return SCI_MAX_CONTROLLERS; | |
324 | else | |
325 | return 1; | |
326 | } | |
327 | ||
328 | static int isci_setup_interrupts(struct pci_dev *pdev) | |
329 | { | |
330 | int err, i, num_msix; | |
31e824ed | 331 | struct isci_host *ihost; |
6f231dda DW |
332 | struct isci_pci_info *pci_info = to_pci_info(pdev); |
333 | ||
334 | /* | |
335 | * Determine the number of vectors associated with this | |
336 | * PCI function. | |
337 | */ | |
338 | num_msix = num_controllers(pdev) * SCI_NUM_MSI_X_INT; | |
339 | ||
340 | for (i = 0; i < num_msix; i++) | |
341 | pci_info->msix_entries[i].entry = i; | |
342 | ||
343 | err = pci_enable_msix(pdev, pci_info->msix_entries, num_msix); | |
344 | if (err) | |
345 | goto intx; | |
346 | ||
347 | for (i = 0; i < num_msix; i++) { | |
348 | int id = i / SCI_NUM_MSI_X_INT; | |
349 | struct msix_entry *msix = &pci_info->msix_entries[i]; | |
92f4f0f5 DW |
350 | irq_handler_t isr; |
351 | ||
31e824ed | 352 | ihost = pci_info->hosts[id]; |
92f4f0f5 DW |
353 | /* odd numbered vectors are error interrupts */ |
354 | if (i & 1) | |
355 | isr = isci_error_isr; | |
356 | else | |
357 | isr = isci_msix_isr; | |
6f231dda | 358 | |
92f4f0f5 | 359 | err = devm_request_irq(&pdev->dev, msix->vector, isr, 0, |
31e824ed | 360 | DRV_NAME"-msix", ihost); |
6f231dda DW |
361 | if (!err) |
362 | continue; | |
363 | ||
364 | dev_info(&pdev->dev, "msix setup failed falling back to intx\n"); | |
365 | while (i--) { | |
366 | id = i / SCI_NUM_MSI_X_INT; | |
31e824ed | 367 | ihost = pci_info->hosts[id]; |
6f231dda | 368 | msix = &pci_info->msix_entries[i]; |
31e824ed | 369 | devm_free_irq(&pdev->dev, msix->vector, ihost); |
6f231dda DW |
370 | } |
371 | pci_disable_msix(pdev); | |
372 | goto intx; | |
373 | } | |
6f231dda DW |
374 | return 0; |
375 | ||
376 | intx: | |
31e824ed DW |
377 | for_each_isci_host(i, ihost, pdev) { |
378 | err = devm_request_irq(&pdev->dev, pdev->irq, isci_intx_isr, | |
379 | IRQF_SHARED, DRV_NAME"-intx", ihost); | |
380 | if (err) | |
381 | break; | |
382 | } | |
6f231dda DW |
383 | return err; |
384 | } | |
385 | ||
6f231dda DW |
386 | static struct isci_host *isci_host_alloc(struct pci_dev *pdev, int id) |
387 | { | |
388 | struct isci_host *isci_host; | |
389 | struct Scsi_Host *shost; | |
390 | int err; | |
391 | ||
57f20f4e | 392 | isci_host = devm_kzalloc(&pdev->dev, sizeof(*isci_host), GFP_KERNEL); |
6f231dda DW |
393 | if (!isci_host) |
394 | return NULL; | |
395 | ||
396 | isci_host->pdev = pdev; | |
397 | isci_host->id = id; | |
398 | ||
399 | shost = scsi_host_alloc(&isci_sht, sizeof(void *)); | |
400 | if (!shost) | |
401 | return NULL; | |
402 | isci_host->shost = shost; | |
403 | ||
404 | err = isci_host_init(isci_host); | |
405 | if (err) | |
406 | goto err_shost; | |
407 | ||
408 | SHOST_TO_SAS_HA(shost) = &isci_host->sas_ha; | |
409 | isci_host->sas_ha.core.shost = shost; | |
410 | shost->transportt = isci_transport_template; | |
411 | ||
412 | shost->max_id = ~0; | |
413 | shost->max_lun = ~0; | |
414 | shost->max_cmd_len = MAX_COMMAND_SIZE; | |
415 | ||
416 | err = scsi_add_host(shost, &pdev->dev); | |
417 | if (err) | |
418 | goto err_shost; | |
419 | ||
420 | err = isci_register_sas_ha(isci_host); | |
421 | if (err) | |
422 | goto err_shost_remove; | |
423 | ||
34cad85d DW |
424 | err = device_create_file(&shost->shost_dev, &dev_attr_isci_id); |
425 | if (err) | |
426 | goto err_unregister_ha; | |
427 | ||
6f231dda DW |
428 | return isci_host; |
429 | ||
34cad85d DW |
430 | err_unregister_ha: |
431 | sas_unregister_ha(&(isci_host->sas_ha)); | |
6f231dda DW |
432 | err_shost_remove: |
433 | scsi_remove_host(shost); | |
434 | err_shost: | |
435 | scsi_host_put(shost); | |
436 | ||
437 | return NULL; | |
438 | } | |
439 | ||
440 | static void check_si_rev(struct pci_dev *pdev) | |
441 | { | |
442 | if (num_controllers(pdev) > 1) | |
443 | isci_si_rev = ISCI_SI_REVB0; | |
444 | else { | |
445 | switch (pdev->revision) { | |
446 | case 0: | |
447 | case 1: | |
448 | /* if the id is ambiguous don't update isci_si_rev */ | |
449 | break; | |
450 | case 3: | |
451 | isci_si_rev = ISCI_SI_REVA2; | |
452 | break; | |
453 | default: | |
454 | case 4: | |
455 | isci_si_rev = ISCI_SI_REVB0; | |
456 | break; | |
457 | } | |
458 | } | |
459 | ||
460 | dev_info(&pdev->dev, "driver configured for %s silicon (rev: %d)\n", | |
461 | isci_si_rev == ISCI_SI_REVA0 ? "A0" : | |
462 | isci_si_rev == ISCI_SI_REVA2 ? "A2" : "B0", pdev->revision); | |
f942f32e | 463 | |
6f231dda DW |
464 | } |
465 | ||
466 | static int __devinit isci_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id) | |
467 | { | |
468 | struct isci_pci_info *pci_info; | |
469 | int err, i; | |
470 | struct isci_host *isci_host; | |
858d4aa7 | 471 | const struct firmware *fw = NULL; |
d37ee7e8 | 472 | struct isci_orom *orom = NULL; |
4711ba10 | 473 | char *source = "(platform)"; |
6f231dda DW |
474 | |
475 | check_si_rev(pdev); | |
476 | ||
477 | pci_info = devm_kzalloc(&pdev->dev, sizeof(*pci_info), GFP_KERNEL); | |
478 | if (!pci_info) | |
479 | return -ENOMEM; | |
480 | pci_set_drvdata(pdev, pci_info); | |
481 | ||
8db37aab DJ |
482 | if (efi_enabled) |
483 | orom = isci_get_efi_var(pdev); | |
d37ee7e8 DW |
484 | |
485 | if (!orom) | |
d044af17 DW |
486 | orom = isci_request_oprom(pdev); |
487 | ||
2d70de5a DW |
488 | for (i = 0; orom && i < ARRAY_SIZE(orom->ctrl); i++) { |
489 | if (scic_oem_parameters_validate(&orom->ctrl[i])) { | |
490 | dev_warn(&pdev->dev, | |
491 | "[%d]: invalid oem parameters detected, falling back to firmware\n", i); | |
492 | devm_kfree(&pdev->dev, orom); | |
493 | orom = NULL; | |
494 | break; | |
495 | } | |
496 | } | |
497 | ||
d044af17 | 498 | if (!orom) { |
4711ba10 | 499 | source = "(firmware)"; |
d044af17 DW |
500 | orom = isci_request_firmware(pdev, fw); |
501 | if (!orom) { | |
502 | /* TODO convert this to WARN_TAINT_ONCE once the | |
503 | * orom/efi parameter support is widely available | |
504 | */ | |
505 | dev_warn(&pdev->dev, | |
506 | "Loading user firmware failed, using default " | |
507 | "values\n"); | |
508 | dev_warn(&pdev->dev, | |
509 | "Default OEM configuration being used: 4 " | |
510 | "narrow ports, and default SAS Addresses\n"); | |
858d4aa7 | 511 | } |
858d4aa7 DJ |
512 | } |
513 | ||
d044af17 | 514 | if (orom) |
3b67c1f3 | 515 | dev_info(&pdev->dev, |
4711ba10 | 516 | "OEM SAS parameters (version: %u.%u) loaded %s\n", |
3b67c1f3 | 517 | (orom->hdr.version & 0xf0) >> 4, |
4711ba10 | 518 | (orom->hdr.version & 0xf), source); |
3b67c1f3 | 519 | |
d044af17 DW |
520 | pci_info->orom = orom; |
521 | ||
6f231dda DW |
522 | err = isci_pci_init(pdev); |
523 | if (err) | |
524 | return err; | |
525 | ||
526 | for (i = 0; i < num_controllers(pdev); i++) { | |
527 | struct isci_host *h = isci_host_alloc(pdev, i); | |
528 | ||
529 | if (!h) { | |
530 | err = -ENOMEM; | |
531 | goto err_host_alloc; | |
532 | } | |
b329aff1 | 533 | pci_info->hosts[i] = h; |
6f231dda DW |
534 | } |
535 | ||
536 | err = isci_setup_interrupts(pdev); | |
537 | if (err) | |
538 | goto err_host_alloc; | |
539 | ||
b329aff1 | 540 | for_each_isci_host(i, isci_host, pdev) |
6f231dda DW |
541 | scsi_scan_host(isci_host->shost); |
542 | ||
543 | return 0; | |
544 | ||
545 | err_host_alloc: | |
b329aff1 | 546 | for_each_isci_host(i, isci_host, pdev) |
34cad85d | 547 | isci_unregister(isci_host); |
6f231dda DW |
548 | return err; |
549 | } | |
550 | ||
551 | static void __devexit isci_pci_remove(struct pci_dev *pdev) | |
552 | { | |
553 | struct isci_host *isci_host; | |
b329aff1 | 554 | int i; |
6f231dda | 555 | |
b329aff1 | 556 | for_each_isci_host(i, isci_host, pdev) { |
34cad85d | 557 | isci_unregister(isci_host); |
6f231dda | 558 | isci_host_deinit(isci_host); |
cc3dbd0a | 559 | scic_controller_disable_interrupts(&isci_host->sci); |
6f231dda DW |
560 | } |
561 | } | |
562 | ||
f942f32e DW |
563 | static struct pci_driver isci_pci_driver = { |
564 | .name = DRV_NAME, | |
565 | .id_table = isci_id_table, | |
566 | .probe = isci_pci_probe, | |
567 | .remove = __devexit_p(isci_pci_remove), | |
568 | }; | |
569 | ||
6f231dda DW |
570 | static __init int isci_init(void) |
571 | { | |
d9c37390 | 572 | int err; |
6f231dda DW |
573 | |
574 | pr_info("%s: Intel(R) C600 SAS Controller Driver\n", DRV_NAME); | |
575 | ||
6f231dda DW |
576 | isci_transport_template = sas_domain_attach_transport(&isci_transport_ops); |
577 | if (!isci_transport_template) | |
d9c37390 | 578 | return -ENOMEM; |
6f231dda DW |
579 | |
580 | err = pci_register_driver(&isci_pci_driver); | |
581 | if (err) | |
d9c37390 | 582 | sas_release_transport(isci_transport_template); |
6f231dda DW |
583 | |
584 | return err; | |
585 | } | |
586 | ||
587 | static __exit void isci_exit(void) | |
588 | { | |
589 | pci_unregister_driver(&isci_pci_driver); | |
590 | sas_release_transport(isci_transport_template); | |
6f231dda DW |
591 | } |
592 | ||
593 | MODULE_LICENSE("Dual BSD/GPL"); | |
594 | MODULE_FIRMWARE(ISCI_FW_NAME); | |
595 | module_init(isci_init); | |
596 | module_exit(isci_exit); |