blob: a23ea2c1c7db5a453a24fff827a28a0d461c9a72 [file] [log] [blame]
Dan Williams6f231dd2011-07-02 22:56:22 -07001/*
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>
Dan Williamsd044af12011-03-08 09:52:49 -080059#include <linux/firmware.h>
60#include <linux/efi.h>
Dan Williams6f231dd2011-07-02 22:56:22 -070061#include <asm/string.h>
62#include "isci.h"
63#include "task.h"
64#include "sci_controller_constants.h"
65#include "scic_remote_device.h"
66#include "sci_environment.h"
Dan Williamsd044af12011-03-08 09:52:49 -080067#include "probe_roms.h"
Dan Williams6f231dd2011-07-02 22:56:22 -070068
69static struct scsi_transport_template *isci_transport_template;
Dan Williams6f231dd2011-07-02 22:56:22 -070070
71static DEFINE_PCI_DEVICE_TABLE(isci_id_table) = {
72 { PCI_VDEVICE(INTEL, 0x1D61),},
73 { PCI_VDEVICE(INTEL, 0x1D63),},
74 { PCI_VDEVICE(INTEL, 0x1D65),},
75 { PCI_VDEVICE(INTEL, 0x1D67),},
76 { PCI_VDEVICE(INTEL, 0x1D69),},
77 { PCI_VDEVICE(INTEL, 0x1D6B),},
78 { PCI_VDEVICE(INTEL, 0x1D60),},
79 { PCI_VDEVICE(INTEL, 0x1D62),},
80 { PCI_VDEVICE(INTEL, 0x1D64),},
81 { PCI_VDEVICE(INTEL, 0x1D66),},
82 { PCI_VDEVICE(INTEL, 0x1D68),},
83 { PCI_VDEVICE(INTEL, 0x1D6A),},
84 {}
85};
86
Dan Williams6f231dd2011-07-02 22:56:22 -070087MODULE_DEVICE_TABLE(pci, isci_id_table);
88
Dan Williams6f231dd2011-07-02 22:56:22 -070089/* linux isci specific settings */
Dan Williams6f231dd2011-07-02 22:56:22 -070090
91#if defined(CONFIG_PBG_HBA_A0)
92int isci_si_rev = ISCI_SI_REVA0;
93#elif defined(CONFIG_PBG_HBA_A2)
94int isci_si_rev = ISCI_SI_REVA2;
95#else
96int isci_si_rev = ISCI_SI_REVB0;
97#endif
Dave Jiangb5f18a22011-03-16 14:57:23 -070098module_param(isci_si_rev, int, 0);
Dan Williams6f231dd2011-07-02 22:56:22 -070099MODULE_PARM_DESC(isci_si_rev, "override default si rev (0: A0 1: A2 2: B0)");
100
Dave Jiangb5f18a22011-03-16 14:57:23 -0700101unsigned char no_outbound_task_to = 20;
102module_param(no_outbound_task_to, byte, 0);
103MODULE_PARM_DESC(no_outbound_task_to, "No Outbound Task Timeout (1us incr)");
104
105u16 ssp_max_occ_to = 20;
106module_param(ssp_max_occ_to, ushort, 0);
107MODULE_PARM_DESC(ssp_max_occ_to, "SSP Max occupancy timeout (100us incr)");
108
109u16 stp_max_occ_to = 5;
110module_param(stp_max_occ_to, ushort, 0);
111MODULE_PARM_DESC(stp_max_occ_to, "STP Max occupancy timeout (100us incr)");
112
113u16 ssp_inactive_to = 5;
114module_param(ssp_inactive_to, ushort, 0);
115MODULE_PARM_DESC(ssp_inactive_to, "SSP inactivity timeout (100us incr)");
116
117u16 stp_inactive_to = 5;
118module_param(stp_inactive_to, ushort, 0);
119MODULE_PARM_DESC(stp_inactive_to, "STP inactivity timeout (100us incr)");
120
121unsigned char phy_gen = 3;
122module_param(phy_gen, byte, 0);
123MODULE_PARM_DESC(phy_gen, "PHY generation (1: 1.5Gbps 2: 3.0Gbps 3: 6.0Gbps)");
124
125unsigned char max_concurr_spinup = 1;
126module_param(max_concurr_spinup, byte, 0);
127MODULE_PARM_DESC(max_concurr_spinup, "Max concurrent device spinup");
128
Dan Williams6f231dd2011-07-02 22:56:22 -0700129static struct scsi_host_template isci_sht = {
130
131 .module = THIS_MODULE,
132 .name = DRV_NAME,
Havard Skinnemoen92cd5112011-02-18 18:32:08 -0800133 .proc_name = DRV_NAME,
Dan Williams6f231dd2011-07-02 22:56:22 -0700134 .queuecommand = sas_queuecommand,
135 .target_alloc = sas_target_alloc,
136 .slave_configure = sas_slave_configure,
137 .slave_destroy = sas_slave_destroy,
138 .scan_finished = isci_host_scan_finished,
139 .scan_start = isci_host_scan_start,
140 .change_queue_depth = sas_change_queue_depth,
141 .change_queue_type = sas_change_queue_type,
142 .bios_param = sas_bios_param,
143 .can_queue = ISCI_CAN_QUEUE_VAL,
144 .cmd_per_lun = 1,
145 .this_id = -1,
146 .sg_tablesize = SG_ALL,
147 .max_sectors = SCSI_DEFAULT_MAX_SECTORS,
148 .use_clustering = ENABLE_CLUSTERING,
149 .eh_device_reset_handler = sas_eh_device_reset_handler,
150 .eh_bus_reset_handler = isci_bus_reset_handler,
151 .slave_alloc = sas_slave_alloc,
152 .target_destroy = sas_target_destroy,
153 .ioctl = sas_ioctl,
154};
155
156static struct sas_domain_function_template isci_transport_ops = {
157
158 /* The class calls these to notify the LLDD of an event. */
159 .lldd_port_formed = isci_port_formed,
160 .lldd_port_deformed = isci_port_deformed,
161
162 /* The class calls these when a device is found or gone. */
163 .lldd_dev_found = isci_remote_device_found,
164 .lldd_dev_gone = isci_remote_device_gone,
165
166 .lldd_execute_task = isci_task_execute_task,
167 /* Task Management Functions. Must be called from process context. */
168 .lldd_abort_task = isci_task_abort_task,
169 .lldd_abort_task_set = isci_task_abort_task_set,
170 .lldd_clear_aca = isci_task_clear_aca,
171 .lldd_clear_task_set = isci_task_clear_task_set,
172 .lldd_I_T_nexus_reset = isci_task_I_T_nexus_reset,
173 .lldd_lu_reset = isci_task_lu_reset,
174 .lldd_query_task = isci_task_query_task,
175
176 /* Port and Adapter management */
177 .lldd_clear_nexus_port = isci_task_clear_nexus_port,
178 .lldd_clear_nexus_ha = isci_task_clear_nexus_ha,
179
180 /* Phy management */
181 .lldd_control_phy = isci_phy_control,
182};
183
184
185/******************************************************************************
186* P R O T E C T E D M E T H O D S
187******************************************************************************/
188
189
190
191/**
192 * isci_register_sas_ha() - This method initializes various lldd
193 * specific members of the sas_ha struct and calls the libsas
194 * sas_register_ha() function.
195 * @isci_host: This parameter specifies the lldd specific wrapper for the
196 * libsas sas_ha struct.
197 *
198 * This method returns an error code indicating sucess or failure. The user
199 * should check for possible memory allocation error return otherwise, a zero
200 * indicates success.
201 */
202static int isci_register_sas_ha(struct isci_host *isci_host)
203{
204 int i;
205 struct sas_ha_struct *sas_ha = &(isci_host->sas_ha);
206 struct asd_sas_phy **sas_phys;
207 struct asd_sas_port **sas_ports;
208
209 sas_phys = devm_kzalloc(&isci_host->pdev->dev,
210 SCI_MAX_PHYS * sizeof(void *),
211 GFP_KERNEL);
212 if (!sas_phys)
213 return -ENOMEM;
214
215 sas_ports = devm_kzalloc(&isci_host->pdev->dev,
216 SCI_MAX_PORTS * sizeof(void *),
217 GFP_KERNEL);
218 if (!sas_ports)
219 return -ENOMEM;
220
221 /*----------------- Libsas Initialization Stuff----------------------
222 * Set various fields in the sas_ha struct:
223 */
224
225 sas_ha->sas_ha_name = DRV_NAME;
226 sas_ha->lldd_module = THIS_MODULE;
Dan Williams150fc6f2011-02-25 10:25:21 -0800227 sas_ha->sas_addr = &isci_host->phys[0].sas_addr[0];
Dan Williams6f231dd2011-07-02 22:56:22 -0700228
229 /* set the array of phy and port structs. */
230 for (i = 0; i < SCI_MAX_PHYS; i++) {
231 sas_phys[i] = &(isci_host->phys[i].sas_phy);
232 sas_ports[i] = &(isci_host->sas_ports[i]);
233 }
234
235 sas_ha->sas_phy = sas_phys;
236 sas_ha->sas_port = sas_ports;
237 sas_ha->num_phys = SCI_MAX_PHYS;
238
239 sas_ha->lldd_queue_size = ISCI_CAN_QUEUE_VAL;
240 sas_ha->lldd_max_execute_num = 1;
241 sas_ha->strict_wide_ports = 1;
242
243 sas_register_ha(sas_ha);
244
245 return 0;
246}
247
Dan Williams34cad852011-03-10 00:01:43 -0800248static ssize_t isci_show_id(struct device *dev, struct device_attribute *attr, char *buf)
Dan Williams6f231dd2011-07-02 22:56:22 -0700249{
Dan Williams34cad852011-03-10 00:01:43 -0800250 struct Scsi_Host *shost = container_of(dev, typeof(*shost), shost_dev);
251 struct sas_ha_struct *sas_ha = SHOST_TO_SAS_HA(shost);
252 struct isci_host *ihost = container_of(sas_ha, typeof(*ihost), sas_ha);
253
254 return snprintf(buf, PAGE_SIZE, "%d\n", ihost->id);
255}
256
257static DEVICE_ATTR(isci_id, S_IRUGO, isci_show_id, NULL);
258
259static void isci_unregister(struct isci_host *isci_host)
260{
261 struct Scsi_Host *shost;
262
Dan Williams6f231dd2011-07-02 22:56:22 -0700263 if (!isci_host)
264 return;
265
Dan Williams34cad852011-03-10 00:01:43 -0800266 shost = isci_host->shost;
267 device_remove_file(&shost->shost_dev, &dev_attr_isci_id);
268
269 sas_unregister_ha(&isci_host->sas_ha);
Dan Williams6f231dd2011-07-02 22:56:22 -0700270
271 sas_remove_host(isci_host->shost);
272 scsi_remove_host(isci_host->shost);
273 scsi_host_put(isci_host->shost);
274}
275
276static int __devinit isci_pci_init(struct pci_dev *pdev)
277{
278 int err, bar_num, bar_mask;
279 void __iomem * const *iomap;
280
281 err = pcim_enable_device(pdev);
282 if (err) {
283 dev_err(&pdev->dev,
284 "failed enable PCI device %s!\n",
285 pci_name(pdev));
286 return err;
287 }
288
289 for (bar_num = 0; bar_num < SCI_PCI_BAR_COUNT; bar_num++)
290 bar_mask |= 1 << (bar_num * 2);
291
292 err = pcim_iomap_regions(pdev, bar_mask, DRV_NAME);
293 if (err)
294 return err;
295
296 iomap = pcim_iomap_table(pdev);
297 if (!iomap)
298 return -ENOMEM;
299
300 pci_set_master(pdev);
301
302 err = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
303 if (err) {
304 err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
305 if (err)
306 return err;
307 }
308
309 err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
310 if (err) {
311 err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
312 if (err)
313 return err;
314 }
315
316 return 0;
317}
318
Dan Williams6f231dd2011-07-02 22:56:22 -0700319static int num_controllers(struct pci_dev *pdev)
320{
321 /* bar size alone can tell us if we are running with a dual controller
322 * part, no need to trust revision ids that might be under broken firmware
323 * control
324 */
325 resource_size_t scu_bar_size = pci_resource_len(pdev, SCI_SCU_BAR*2);
326 resource_size_t smu_bar_size = pci_resource_len(pdev, SCI_SMU_BAR*2);
Dan Williamsf942f322011-03-26 16:30:06 -0700327
Dan Williams6f231dd2011-07-02 22:56:22 -0700328 if (scu_bar_size >= SCI_SCU_BAR_SIZE*SCI_MAX_CONTROLLERS &&
329 smu_bar_size >= SCI_SMU_BAR_SIZE*SCI_MAX_CONTROLLERS)
330 return SCI_MAX_CONTROLLERS;
331 else
332 return 1;
333}
334
335static int isci_setup_interrupts(struct pci_dev *pdev)
336{
337 int err, i, num_msix;
Dan Williams31e824e2011-04-19 12:32:51 -0700338 struct isci_host *ihost;
Dan Williams6f231dd2011-07-02 22:56:22 -0700339 struct isci_pci_info *pci_info = to_pci_info(pdev);
340
341 /*
342 * Determine the number of vectors associated with this
343 * PCI function.
344 */
345 num_msix = num_controllers(pdev) * SCI_NUM_MSI_X_INT;
346
347 for (i = 0; i < num_msix; i++)
348 pci_info->msix_entries[i].entry = i;
349
350 err = pci_enable_msix(pdev, pci_info->msix_entries, num_msix);
351 if (err)
352 goto intx;
353
354 for (i = 0; i < num_msix; i++) {
355 int id = i / SCI_NUM_MSI_X_INT;
356 struct msix_entry *msix = &pci_info->msix_entries[i];
Dan Williams92f4f0f2011-02-18 09:25:11 -0800357 irq_handler_t isr;
358
Dan Williams31e824e2011-04-19 12:32:51 -0700359 ihost = pci_info->hosts[id];
Dan Williams92f4f0f2011-02-18 09:25:11 -0800360 /* odd numbered vectors are error interrupts */
361 if (i & 1)
362 isr = isci_error_isr;
363 else
364 isr = isci_msix_isr;
Dan Williams6f231dd2011-07-02 22:56:22 -0700365
Dan Williams92f4f0f2011-02-18 09:25:11 -0800366 err = devm_request_irq(&pdev->dev, msix->vector, isr, 0,
Dan Williams31e824e2011-04-19 12:32:51 -0700367 DRV_NAME"-msix", ihost);
Dan Williams6f231dd2011-07-02 22:56:22 -0700368 if (!err)
369 continue;
370
371 dev_info(&pdev->dev, "msix setup failed falling back to intx\n");
372 while (i--) {
373 id = i / SCI_NUM_MSI_X_INT;
Dan Williams31e824e2011-04-19 12:32:51 -0700374 ihost = pci_info->hosts[id];
Dan Williams6f231dd2011-07-02 22:56:22 -0700375 msix = &pci_info->msix_entries[i];
Dan Williams31e824e2011-04-19 12:32:51 -0700376 devm_free_irq(&pdev->dev, msix->vector, ihost);
Dan Williams6f231dd2011-07-02 22:56:22 -0700377 }
378 pci_disable_msix(pdev);
379 goto intx;
380 }
Dan Williams6f231dd2011-07-02 22:56:22 -0700381 return 0;
382
383 intx:
Dan Williams31e824e2011-04-19 12:32:51 -0700384 for_each_isci_host(i, ihost, pdev) {
385 err = devm_request_irq(&pdev->dev, pdev->irq, isci_intx_isr,
386 IRQF_SHARED, DRV_NAME"-intx", ihost);
387 if (err)
388 break;
389 }
Dan Williams6f231dd2011-07-02 22:56:22 -0700390 return err;
391}
392
Dan Williams6f231dd2011-07-02 22:56:22 -0700393static struct isci_host *isci_host_alloc(struct pci_dev *pdev, int id)
394{
395 struct isci_host *isci_host;
396 struct Scsi_Host *shost;
397 int err;
398
Dan Williams57f20f42011-04-21 18:14:45 -0700399 isci_host = devm_kzalloc(&pdev->dev, sizeof(*isci_host), GFP_KERNEL);
Dan Williams6f231dd2011-07-02 22:56:22 -0700400 if (!isci_host)
401 return NULL;
402
403 isci_host->pdev = pdev;
404 isci_host->id = id;
405
406 shost = scsi_host_alloc(&isci_sht, sizeof(void *));
407 if (!shost)
408 return NULL;
409 isci_host->shost = shost;
410
411 err = isci_host_init(isci_host);
412 if (err)
413 goto err_shost;
414
415 SHOST_TO_SAS_HA(shost) = &isci_host->sas_ha;
416 isci_host->sas_ha.core.shost = shost;
417 shost->transportt = isci_transport_template;
418
419 shost->max_id = ~0;
420 shost->max_lun = ~0;
421 shost->max_cmd_len = MAX_COMMAND_SIZE;
422
423 err = scsi_add_host(shost, &pdev->dev);
424 if (err)
425 goto err_shost;
426
427 err = isci_register_sas_ha(isci_host);
428 if (err)
429 goto err_shost_remove;
430
Dan Williams34cad852011-03-10 00:01:43 -0800431 err = device_create_file(&shost->shost_dev, &dev_attr_isci_id);
432 if (err)
433 goto err_unregister_ha;
434
Dan Williams6f231dd2011-07-02 22:56:22 -0700435 return isci_host;
436
Dan Williams34cad852011-03-10 00:01:43 -0800437 err_unregister_ha:
438 sas_unregister_ha(&(isci_host->sas_ha));
Dan Williams6f231dd2011-07-02 22:56:22 -0700439 err_shost_remove:
440 scsi_remove_host(shost);
441 err_shost:
442 scsi_host_put(shost);
443
444 return NULL;
445}
446
447static void check_si_rev(struct pci_dev *pdev)
448{
449 if (num_controllers(pdev) > 1)
450 isci_si_rev = ISCI_SI_REVB0;
451 else {
452 switch (pdev->revision) {
453 case 0:
454 case 1:
455 /* if the id is ambiguous don't update isci_si_rev */
456 break;
457 case 3:
458 isci_si_rev = ISCI_SI_REVA2;
459 break;
460 default:
461 case 4:
462 isci_si_rev = ISCI_SI_REVB0;
463 break;
464 }
465 }
466
467 dev_info(&pdev->dev, "driver configured for %s silicon (rev: %d)\n",
468 isci_si_rev == ISCI_SI_REVA0 ? "A0" :
469 isci_si_rev == ISCI_SI_REVA2 ? "A2" : "B0", pdev->revision);
Dan Williamsf942f322011-03-26 16:30:06 -0700470
Dan Williams6f231dd2011-07-02 22:56:22 -0700471}
472
473static int __devinit isci_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
474{
475 struct isci_pci_info *pci_info;
476 int err, i;
477 struct isci_host *isci_host;
Dave Jiang858d4aa2011-02-22 01:27:03 -0800478 const struct firmware *fw = NULL;
Dan Williamsd044af12011-03-08 09:52:49 -0800479 struct isci_orom *orom;
Dan Williams4711ba12011-03-11 10:43:57 -0800480 char *source = "(platform)";
Dan Williams6f231dd2011-07-02 22:56:22 -0700481
482 check_si_rev(pdev);
483
484 pci_info = devm_kzalloc(&pdev->dev, sizeof(*pci_info), GFP_KERNEL);
485 if (!pci_info)
486 return -ENOMEM;
487 pci_set_drvdata(pdev, pci_info);
488
Dave Jiang8db37aa2011-02-23 00:02:24 -0800489 if (efi_enabled)
490 orom = isci_get_efi_var(pdev);
491 else
Dan Williamsd044af12011-03-08 09:52:49 -0800492 orom = isci_request_oprom(pdev);
493
Dan Williams2d70de52011-04-20 12:57:08 -0700494 for (i = 0; orom && i < ARRAY_SIZE(orom->ctrl); i++) {
495 if (scic_oem_parameters_validate(&orom->ctrl[i])) {
496 dev_warn(&pdev->dev,
497 "[%d]: invalid oem parameters detected, falling back to firmware\n", i);
498 devm_kfree(&pdev->dev, orom);
499 orom = NULL;
500 break;
501 }
502 }
503
Dan Williamsd044af12011-03-08 09:52:49 -0800504 if (!orom) {
Dan Williams4711ba12011-03-11 10:43:57 -0800505 source = "(firmware)";
Dan Williamsd044af12011-03-08 09:52:49 -0800506 orom = isci_request_firmware(pdev, fw);
507 if (!orom) {
508 /* TODO convert this to WARN_TAINT_ONCE once the
509 * orom/efi parameter support is widely available
510 */
511 dev_warn(&pdev->dev,
512 "Loading user firmware failed, using default "
513 "values\n");
514 dev_warn(&pdev->dev,
515 "Default OEM configuration being used: 4 "
516 "narrow ports, and default SAS Addresses\n");
Dave Jiang858d4aa2011-02-22 01:27:03 -0800517 }
Dave Jiang858d4aa2011-02-22 01:27:03 -0800518 }
519
Dan Williamsd044af12011-03-08 09:52:49 -0800520 if (orom)
Dan Williams3b67c1f2011-03-08 09:53:51 -0800521 dev_info(&pdev->dev,
Dan Williams4711ba12011-03-11 10:43:57 -0800522 "OEM SAS parameters (version: %u.%u) loaded %s\n",
Dan Williams3b67c1f2011-03-08 09:53:51 -0800523 (orom->hdr.version & 0xf0) >> 4,
Dan Williams4711ba12011-03-11 10:43:57 -0800524 (orom->hdr.version & 0xf), source);
Dan Williams3b67c1f2011-03-08 09:53:51 -0800525
Dan Williamsd044af12011-03-08 09:52:49 -0800526 pci_info->orom = orom;
527
Dan Williams6f231dd2011-07-02 22:56:22 -0700528 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 }
Dan Williamsb329aff2011-03-07 16:02:25 -0800539 pci_info->hosts[i] = h;
Dan Williams6f231dd2011-07-02 22:56:22 -0700540 }
541
542 err = isci_setup_interrupts(pdev);
543 if (err)
544 goto err_host_alloc;
545
Dan Williamsb329aff2011-03-07 16:02:25 -0800546 for_each_isci_host(i, isci_host, pdev)
Dan Williams6f231dd2011-07-02 22:56:22 -0700547 scsi_scan_host(isci_host->shost);
548
549 return 0;
550
551 err_host_alloc:
Dan Williamsb329aff2011-03-07 16:02:25 -0800552 for_each_isci_host(i, isci_host, pdev)
Dan Williams34cad852011-03-10 00:01:43 -0800553 isci_unregister(isci_host);
Dan Williams6f231dd2011-07-02 22:56:22 -0700554 return err;
555}
556
557static void __devexit isci_pci_remove(struct pci_dev *pdev)
558{
559 struct isci_host *isci_host;
Dan Williamsb329aff2011-03-07 16:02:25 -0800560 int i;
Dan Williams6f231dd2011-07-02 22:56:22 -0700561
Dan Williamsb329aff2011-03-07 16:02:25 -0800562 for_each_isci_host(i, isci_host, pdev) {
Dan Williams34cad852011-03-10 00:01:43 -0800563 isci_unregister(isci_host);
Dan Williams6f231dd2011-07-02 22:56:22 -0700564 isci_host_deinit(isci_host);
565 scic_controller_disable_interrupts(isci_host->core_controller);
566 }
567}
568
Dan Williamsf942f322011-03-26 16:30:06 -0700569static struct pci_driver isci_pci_driver = {
570 .name = DRV_NAME,
571 .id_table = isci_id_table,
572 .probe = isci_pci_probe,
573 .remove = __devexit_p(isci_pci_remove),
574};
575
Dan Williams6f231dd2011-07-02 22:56:22 -0700576static __init int isci_init(void)
577{
Dan Williamsd9c37392011-03-03 17:59:32 -0800578 int err;
Dan Williams6f231dd2011-07-02 22:56:22 -0700579
580 pr_info("%s: Intel(R) C600 SAS Controller Driver\n", DRV_NAME);
581
Dan Williams6f231dd2011-07-02 22:56:22 -0700582 isci_transport_template = sas_domain_attach_transport(&isci_transport_ops);
583 if (!isci_transport_template)
Dan Williamsd9c37392011-03-03 17:59:32 -0800584 return -ENOMEM;
Dan Williams6f231dd2011-07-02 22:56:22 -0700585
586 err = pci_register_driver(&isci_pci_driver);
587 if (err)
Dan Williamsd9c37392011-03-03 17:59:32 -0800588 sas_release_transport(isci_transport_template);
Dan Williams6f231dd2011-07-02 22:56:22 -0700589
590 return err;
591}
592
593static __exit void isci_exit(void)
594{
595 pci_unregister_driver(&isci_pci_driver);
596 sas_release_transport(isci_transport_template);
Dan Williams6f231dd2011-07-02 22:56:22 -0700597}
598
599MODULE_LICENSE("Dual BSD/GPL");
600MODULE_FIRMWARE(ISCI_FW_NAME);
601module_init(isci_init);
602module_exit(isci_exit);