blob: e78320bbec4fb1d28d6938233a7a6c7504593b73 [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>
Dave Jiang3a7bda82011-07-29 17:17:00 -070062#include <scsi/scsi_host.h>
Dan Williams6f231dd2011-07-02 22:56:22 -070063#include "isci.h"
64#include "task.h"
Dan Williamsd044af12011-03-08 09:52:49 -080065#include "probe_roms.h"
Dan Williams6f231dd2011-07-02 22:56:22 -070066
67static struct scsi_transport_template *isci_transport_template;
Dan Williams6f231dd2011-07-02 22:56:22 -070068
69static 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
Dan Williams6f231dd2011-07-02 22:56:22 -070085MODULE_DEVICE_TABLE(pci, isci_id_table);
86
Dan Williams6f231dd2011-07-02 22:56:22 -070087/* linux isci specific settings */
Dan Williams6f231dd2011-07-02 22:56:22 -070088
Dave Jiangb5f18a22011-03-16 14:57:23 -070089unsigned char no_outbound_task_to = 20;
90module_param(no_outbound_task_to, byte, 0);
91MODULE_PARM_DESC(no_outbound_task_to, "No Outbound Task Timeout (1us incr)");
92
93u16 ssp_max_occ_to = 20;
94module_param(ssp_max_occ_to, ushort, 0);
95MODULE_PARM_DESC(ssp_max_occ_to, "SSP Max occupancy timeout (100us incr)");
96
97u16 stp_max_occ_to = 5;
98module_param(stp_max_occ_to, ushort, 0);
99MODULE_PARM_DESC(stp_max_occ_to, "STP Max occupancy timeout (100us incr)");
100
101u16 ssp_inactive_to = 5;
102module_param(ssp_inactive_to, ushort, 0);
103MODULE_PARM_DESC(ssp_inactive_to, "SSP inactivity timeout (100us incr)");
104
105u16 stp_inactive_to = 5;
106module_param(stp_inactive_to, ushort, 0);
107MODULE_PARM_DESC(stp_inactive_to, "STP inactivity timeout (100us incr)");
108
109unsigned char phy_gen = 3;
110module_param(phy_gen, byte, 0);
111MODULE_PARM_DESC(phy_gen, "PHY generation (1: 1.5Gbps 2: 3.0Gbps 3: 6.0Gbps)");
112
113unsigned char max_concurr_spinup = 1;
114module_param(max_concurr_spinup, byte, 0);
115MODULE_PARM_DESC(max_concurr_spinup, "Max concurrent device spinup");
116
Dave Jiang3a7bda82011-07-29 17:17:00 -0700117static ssize_t isci_show_id(struct device *dev, struct device_attribute *attr, char *buf)
118{
119 struct Scsi_Host *shost = container_of(dev, typeof(*shost), shost_dev);
120 struct sas_ha_struct *sas_ha = SHOST_TO_SAS_HA(shost);
121 struct isci_host *ihost = container_of(sas_ha, typeof(*ihost), sas_ha);
122
123 return snprintf(buf, PAGE_SIZE, "%d\n", ihost->id);
124}
125
126static DEVICE_ATTR(isci_id, S_IRUGO, isci_show_id, NULL);
127
128struct device_attribute *isci_host_attrs[] = {
129 &dev_attr_isci_id,
130 NULL
131};
132
Dan Williams6f231dd2011-07-02 22:56:22 -0700133static struct scsi_host_template isci_sht = {
134
135 .module = THIS_MODULE,
136 .name = DRV_NAME,
Havard Skinnemoen92cd5112011-02-18 18:32:08 -0800137 .proc_name = DRV_NAME,
Dan Williams6f231dd2011-07-02 22:56:22 -0700138 .queuecommand = sas_queuecommand,
139 .target_alloc = sas_target_alloc,
140 .slave_configure = sas_slave_configure,
141 .slave_destroy = sas_slave_destroy,
142 .scan_finished = isci_host_scan_finished,
143 .scan_start = isci_host_scan_start,
144 .change_queue_depth = sas_change_queue_depth,
145 .change_queue_type = sas_change_queue_type,
146 .bios_param = sas_bios_param,
147 .can_queue = ISCI_CAN_QUEUE_VAL,
148 .cmd_per_lun = 1,
149 .this_id = -1,
150 .sg_tablesize = SG_ALL,
151 .max_sectors = SCSI_DEFAULT_MAX_SECTORS,
152 .use_clustering = ENABLE_CLUSTERING,
153 .eh_device_reset_handler = sas_eh_device_reset_handler,
154 .eh_bus_reset_handler = isci_bus_reset_handler,
155 .slave_alloc = sas_slave_alloc,
156 .target_destroy = sas_target_destroy,
157 .ioctl = sas_ioctl,
Dave Jiang3a7bda82011-07-29 17:17:00 -0700158 .shost_attrs = isci_host_attrs,
Dan Williams6f231dd2011-07-02 22:56:22 -0700159};
160
161static struct sas_domain_function_template isci_transport_ops = {
162
163 /* The class calls these to notify the LLDD of an event. */
164 .lldd_port_formed = isci_port_formed,
165 .lldd_port_deformed = isci_port_deformed,
166
167 /* The class calls these when a device is found or gone. */
168 .lldd_dev_found = isci_remote_device_found,
169 .lldd_dev_gone = isci_remote_device_gone,
170
171 .lldd_execute_task = isci_task_execute_task,
172 /* Task Management Functions. Must be called from process context. */
173 .lldd_abort_task = isci_task_abort_task,
174 .lldd_abort_task_set = isci_task_abort_task_set,
175 .lldd_clear_aca = isci_task_clear_aca,
176 .lldd_clear_task_set = isci_task_clear_task_set,
177 .lldd_I_T_nexus_reset = isci_task_I_T_nexus_reset,
178 .lldd_lu_reset = isci_task_lu_reset,
179 .lldd_query_task = isci_task_query_task,
180
181 /* Port and Adapter management */
182 .lldd_clear_nexus_port = isci_task_clear_nexus_port,
183 .lldd_clear_nexus_ha = isci_task_clear_nexus_ha,
184
185 /* Phy management */
186 .lldd_control_phy = isci_phy_control,
187};
188
189
190/******************************************************************************
191* P R O T E C T E D M E T H O D S
192******************************************************************************/
193
194
195
196/**
197 * isci_register_sas_ha() - This method initializes various lldd
198 * specific members of the sas_ha struct and calls the libsas
199 * sas_register_ha() function.
200 * @isci_host: This parameter specifies the lldd specific wrapper for the
201 * libsas sas_ha struct.
202 *
203 * This method returns an error code indicating sucess or failure. The user
204 * should check for possible memory allocation error return otherwise, a zero
205 * indicates success.
206 */
207static int isci_register_sas_ha(struct isci_host *isci_host)
208{
209 int i;
210 struct sas_ha_struct *sas_ha = &(isci_host->sas_ha);
211 struct asd_sas_phy **sas_phys;
212 struct asd_sas_port **sas_ports;
213
214 sas_phys = devm_kzalloc(&isci_host->pdev->dev,
215 SCI_MAX_PHYS * sizeof(void *),
216 GFP_KERNEL);
217 if (!sas_phys)
218 return -ENOMEM;
219
220 sas_ports = devm_kzalloc(&isci_host->pdev->dev,
221 SCI_MAX_PORTS * sizeof(void *),
222 GFP_KERNEL);
223 if (!sas_ports)
224 return -ENOMEM;
225
226 /*----------------- Libsas Initialization Stuff----------------------
227 * Set various fields in the sas_ha struct:
228 */
229
230 sas_ha->sas_ha_name = DRV_NAME;
231 sas_ha->lldd_module = THIS_MODULE;
Dan Williams150fc6f2011-02-25 10:25:21 -0800232 sas_ha->sas_addr = &isci_host->phys[0].sas_addr[0];
Dan Williams6f231dd2011-07-02 22:56:22 -0700233
234 /* set the array of phy and port structs. */
235 for (i = 0; i < SCI_MAX_PHYS; i++) {
Dan Williamse5313812011-05-07 10:11:43 -0700236 sas_phys[i] = &isci_host->phys[i].sas_phy;
237 sas_ports[i] = &isci_host->ports[i].sas_port;
Dan Williams6f231dd2011-07-02 22:56:22 -0700238 }
239
240 sas_ha->sas_phy = sas_phys;
241 sas_ha->sas_port = sas_ports;
242 sas_ha->num_phys = SCI_MAX_PHYS;
243
244 sas_ha->lldd_queue_size = ISCI_CAN_QUEUE_VAL;
245 sas_ha->lldd_max_execute_num = 1;
246 sas_ha->strict_wide_ports = 1;
247
248 sas_register_ha(sas_ha);
249
250 return 0;
251}
252
Dan Williams34cad852011-03-10 00:01:43 -0800253static void isci_unregister(struct isci_host *isci_host)
254{
255 struct Scsi_Host *shost;
256
Dan Williams6f231dd2011-07-02 22:56:22 -0700257 if (!isci_host)
258 return;
259
Dan Williams34cad852011-03-10 00:01:43 -0800260 shost = isci_host->shost;
Dan Williams34cad852011-03-10 00:01:43 -0800261
262 sas_unregister_ha(&isci_host->sas_ha);
Dan Williams6f231dd2011-07-02 22:56:22 -0700263
264 sas_remove_host(isci_host->shost);
265 scsi_remove_host(isci_host->shost);
266 scsi_host_put(isci_host->shost);
267}
268
269static int __devinit isci_pci_init(struct pci_dev *pdev)
270{
Artur Wojcikcc3dbd02011-05-04 07:58:16 +0000271 int err, bar_num, bar_mask = 0;
Dan Williams6f231dd2011-07-02 22:56:22 -0700272 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
Dan Williams6f231dd2011-07-02 22:56:22 -0700312static 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);
Dan Williamsf942f322011-03-26 16:30:06 -0700320
Dan Williams6f231dd2011-07-02 22:56:22 -0700321 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
328static int isci_setup_interrupts(struct pci_dev *pdev)
329{
330 int err, i, num_msix;
Dan Williams31e824e2011-04-19 12:32:51 -0700331 struct isci_host *ihost;
Dan Williams6f231dd2011-07-02 22:56:22 -0700332 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];
Dan Williams92f4f0f2011-02-18 09:25:11 -0800350 irq_handler_t isr;
351
Dan Williams31e824e2011-04-19 12:32:51 -0700352 ihost = pci_info->hosts[id];
Dan Williams92f4f0f2011-02-18 09:25:11 -0800353 /* odd numbered vectors are error interrupts */
354 if (i & 1)
355 isr = isci_error_isr;
356 else
357 isr = isci_msix_isr;
Dan Williams6f231dd2011-07-02 22:56:22 -0700358
Dan Williams92f4f0f2011-02-18 09:25:11 -0800359 err = devm_request_irq(&pdev->dev, msix->vector, isr, 0,
Dan Williams31e824e2011-04-19 12:32:51 -0700360 DRV_NAME"-msix", ihost);
Dan Williams6f231dd2011-07-02 22:56:22 -0700361 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;
Dan Williams31e824e2011-04-19 12:32:51 -0700367 ihost = pci_info->hosts[id];
Dan Williams6f231dd2011-07-02 22:56:22 -0700368 msix = &pci_info->msix_entries[i];
Dan Williams31e824e2011-04-19 12:32:51 -0700369 devm_free_irq(&pdev->dev, msix->vector, ihost);
Dan Williams6f231dd2011-07-02 22:56:22 -0700370 }
371 pci_disable_msix(pdev);
372 goto intx;
373 }
Dan Williams6f231dd2011-07-02 22:56:22 -0700374 return 0;
375
376 intx:
Dan Williams31e824e2011-04-19 12:32:51 -0700377 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 }
Dan Williams6f231dd2011-07-02 22:56:22 -0700383 return err;
384}
385
Dan Williams6f231dd2011-07-02 22:56:22 -0700386static 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
Dan Williams57f20f42011-04-21 18:14:45 -0700392 isci_host = devm_kzalloc(&pdev->dev, sizeof(*isci_host), GFP_KERNEL);
Dan Williams6f231dd2011-07-02 22:56:22 -0700393 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
424 return isci_host;
425
426 err_shost_remove:
427 scsi_remove_host(shost);
428 err_shost:
429 scsi_host_put(shost);
430
431 return NULL;
432}
433
Dan Williams6f231dd2011-07-02 22:56:22 -0700434static int __devinit isci_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
435{
436 struct isci_pci_info *pci_info;
437 int err, i;
438 struct isci_host *isci_host;
Dave Jiang858d4aa2011-02-22 01:27:03 -0800439 const struct firmware *fw = NULL;
Dan Williamsd37ee7e2011-04-26 13:19:53 -0700440 struct isci_orom *orom = NULL;
Dan Williams4711ba12011-03-11 10:43:57 -0800441 char *source = "(platform)";
Dan Williams6f231dd2011-07-02 22:56:22 -0700442
Dan Williamsdc00c8b2011-07-01 11:41:21 -0700443 dev_info(&pdev->dev, "driver configured for rev: %d silicon\n",
444 pdev->revision);
Dan Williams6f231dd2011-07-02 22:56:22 -0700445
446 pci_info = devm_kzalloc(&pdev->dev, sizeof(*pci_info), GFP_KERNEL);
447 if (!pci_info)
448 return -ENOMEM;
449 pci_set_drvdata(pdev, pci_info);
450
Dave Jiang8db37aa2011-02-23 00:02:24 -0800451 if (efi_enabled)
452 orom = isci_get_efi_var(pdev);
Dan Williamsd37ee7e2011-04-26 13:19:53 -0700453
454 if (!orom)
Dan Williamsd044af12011-03-08 09:52:49 -0800455 orom = isci_request_oprom(pdev);
456
Dan Williams2d70de52011-04-20 12:57:08 -0700457 for (i = 0; orom && i < ARRAY_SIZE(orom->ctrl); i++) {
Dan Williams89a73012011-06-30 19:14:33 -0700458 if (sci_oem_parameters_validate(&orom->ctrl[i])) {
Dan Williams2d70de52011-04-20 12:57:08 -0700459 dev_warn(&pdev->dev,
460 "[%d]: invalid oem parameters detected, falling back to firmware\n", i);
461 devm_kfree(&pdev->dev, orom);
462 orom = NULL;
463 break;
464 }
465 }
466
Dan Williamsd044af12011-03-08 09:52:49 -0800467 if (!orom) {
Dan Williams4711ba12011-03-11 10:43:57 -0800468 source = "(firmware)";
Dan Williamsd044af12011-03-08 09:52:49 -0800469 orom = isci_request_firmware(pdev, fw);
470 if (!orom) {
471 /* TODO convert this to WARN_TAINT_ONCE once the
472 * orom/efi parameter support is widely available
473 */
474 dev_warn(&pdev->dev,
475 "Loading user firmware failed, using default "
476 "values\n");
477 dev_warn(&pdev->dev,
478 "Default OEM configuration being used: 4 "
479 "narrow ports, and default SAS Addresses\n");
Dave Jiang858d4aa2011-02-22 01:27:03 -0800480 }
Dave Jiang858d4aa2011-02-22 01:27:03 -0800481 }
482
Dan Williamsd044af12011-03-08 09:52:49 -0800483 if (orom)
Dan Williams3b67c1f2011-03-08 09:53:51 -0800484 dev_info(&pdev->dev,
Dan Williams4711ba12011-03-11 10:43:57 -0800485 "OEM SAS parameters (version: %u.%u) loaded %s\n",
Dan Williams3b67c1f2011-03-08 09:53:51 -0800486 (orom->hdr.version & 0xf0) >> 4,
Dan Williams4711ba12011-03-11 10:43:57 -0800487 (orom->hdr.version & 0xf), source);
Dan Williams3b67c1f2011-03-08 09:53:51 -0800488
Dan Williamsd044af12011-03-08 09:52:49 -0800489 pci_info->orom = orom;
490
Dan Williams6f231dd2011-07-02 22:56:22 -0700491 err = isci_pci_init(pdev);
492 if (err)
493 return err;
494
495 for (i = 0; i < num_controllers(pdev); i++) {
496 struct isci_host *h = isci_host_alloc(pdev, i);
497
498 if (!h) {
499 err = -ENOMEM;
500 goto err_host_alloc;
501 }
Dan Williamsb329aff2011-03-07 16:02:25 -0800502 pci_info->hosts[i] = h;
Dan Williams6f231dd2011-07-02 22:56:22 -0700503 }
504
505 err = isci_setup_interrupts(pdev);
506 if (err)
507 goto err_host_alloc;
508
Dan Williamsb329aff2011-03-07 16:02:25 -0800509 for_each_isci_host(i, isci_host, pdev)
Dan Williams6f231dd2011-07-02 22:56:22 -0700510 scsi_scan_host(isci_host->shost);
511
512 return 0;
513
514 err_host_alloc:
Dan Williamsb329aff2011-03-07 16:02:25 -0800515 for_each_isci_host(i, isci_host, pdev)
Dan Williams34cad852011-03-10 00:01:43 -0800516 isci_unregister(isci_host);
Dan Williams6f231dd2011-07-02 22:56:22 -0700517 return err;
518}
519
520static void __devexit isci_pci_remove(struct pci_dev *pdev)
521{
Dan Williamsd9dcb4b2011-06-30 17:38:32 -0700522 struct isci_host *ihost;
Dan Williamsb329aff2011-03-07 16:02:25 -0800523 int i;
Dan Williams6f231dd2011-07-02 22:56:22 -0700524
Dan Williamsd9dcb4b2011-06-30 17:38:32 -0700525 for_each_isci_host(i, ihost, pdev) {
526 isci_unregister(ihost);
527 isci_host_deinit(ihost);
Dan Williams89a73012011-06-30 19:14:33 -0700528 sci_controller_disable_interrupts(ihost);
Dan Williams6f231dd2011-07-02 22:56:22 -0700529 }
530}
531
Dan Williamsf942f322011-03-26 16:30:06 -0700532static struct pci_driver isci_pci_driver = {
533 .name = DRV_NAME,
534 .id_table = isci_id_table,
535 .probe = isci_pci_probe,
536 .remove = __devexit_p(isci_pci_remove),
537};
538
Dan Williams6f231dd2011-07-02 22:56:22 -0700539static __init int isci_init(void)
540{
Dan Williamsd9c37392011-03-03 17:59:32 -0800541 int err;
Dan Williams6f231dd2011-07-02 22:56:22 -0700542
543 pr_info("%s: Intel(R) C600 SAS Controller Driver\n", DRV_NAME);
544
Dan Williams6f231dd2011-07-02 22:56:22 -0700545 isci_transport_template = sas_domain_attach_transport(&isci_transport_ops);
546 if (!isci_transport_template)
Dan Williamsd9c37392011-03-03 17:59:32 -0800547 return -ENOMEM;
Dan Williams6f231dd2011-07-02 22:56:22 -0700548
549 err = pci_register_driver(&isci_pci_driver);
550 if (err)
Dan Williamsd9c37392011-03-03 17:59:32 -0800551 sas_release_transport(isci_transport_template);
Dan Williams6f231dd2011-07-02 22:56:22 -0700552
553 return err;
554}
555
556static __exit void isci_exit(void)
557{
558 pci_unregister_driver(&isci_pci_driver);
559 sas_release_transport(isci_transport_template);
Dan Williams6f231dd2011-07-02 22:56:22 -0700560}
561
562MODULE_LICENSE("Dual BSD/GPL");
563MODULE_FIRMWARE(ISCI_FW_NAME);
564module_init(isci_init);
565module_exit(isci_exit);