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Merge branch 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik...
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / scsi / aic94xx / aic94xx_init.c
blob27852b43b9044a829ffc2d3c4bc3ff5fe09885a4
1 /*
2 * Aic94xx SAS/SATA driver initialization.
3 *
4 * Copyright (C) 2005 Adaptec, Inc. All rights reserved.
5 * Copyright (C) 2005 Luben Tuikov <luben_tuikov@adaptec.com>
6 *
7 * This file is licensed under GPLv2.
8 *
9 * This file is part of the aic94xx driver.
10 *
11 * The aic94xx driver is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU General Public License as
13 * published by the Free Software Foundation; version 2 of the
14 * License.
15 *
16 * The aic94xx driver is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19 * General Public License for more details.
20 *
21 * You should have received a copy of the GNU General Public License
22 * along with the aic94xx driver; if not, write to the Free Software
23 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
24 *
25 */
26
27 #include <linux/module.h>
28 #include <linux/init.h>
29 #include <linux/kernel.h>
30 #include <linux/pci.h>
31 #include <linux/delay.h>
32
33 #include <scsi/scsi_host.h>
34
35 #include "aic94xx.h"
36 #include "aic94xx_reg.h"
37 #include "aic94xx_hwi.h"
38 #include "aic94xx_seq.h"
39
40 /* The format is "version.release.patchlevel" */
41 #define ASD_DRIVER_VERSION "1.0.3"
42
43 static int use_msi = 0;
44 module_param_named(use_msi, use_msi, int, S_IRUGO);
45 MODULE_PARM_DESC(use_msi, "\n"
46 "\tEnable(1) or disable(0) using PCI MSI.\n"
47 "\tDefault: 0");
48
49 static int lldd_max_execute_num = 0;
50 module_param_named(collector, lldd_max_execute_num, int, S_IRUGO);
51 MODULE_PARM_DESC(collector, "\n"
52 "\tIf greater than one, tells the SAS Layer to run in Task Collector\n"
53 "\tMode. If 1 or 0, tells the SAS Layer to run in Direct Mode.\n"
54 "\tThe aic94xx SAS LLDD supports both modes.\n"
55 "\tDefault: 0 (Direct Mode).\n");
56
57 char sas_addr_str[2*SAS_ADDR_SIZE + 1] = "";
58
59 static struct scsi_transport_template *aic94xx_transport_template;
60 static int asd_scan_finished(struct Scsi_Host *, unsigned long);
61 static void asd_scan_start(struct Scsi_Host *);
62
63 static struct scsi_host_template aic94xx_sht = {
64 .module = THIS_MODULE,
65 /* .name is initialized */
66 .name = "aic94xx",
67 .queuecommand = sas_queuecommand,
68 .target_alloc = sas_target_alloc,
69 .slave_configure = sas_slave_configure,
70 .slave_destroy = sas_slave_destroy,
71 .scan_finished = asd_scan_finished,
72 .scan_start = asd_scan_start,
73 .change_queue_depth = sas_change_queue_depth,
74 .change_queue_type = sas_change_queue_type,
75 .bios_param = sas_bios_param,
76 .can_queue = 1,
77 .cmd_per_lun = 1,
78 .this_id = -1,
79 .sg_tablesize = SG_ALL,
80 .max_sectors = SCSI_DEFAULT_MAX_SECTORS,
81 .use_clustering = ENABLE_CLUSTERING,
82 .eh_device_reset_handler = sas_eh_device_reset_handler,
83 .eh_bus_reset_handler = sas_eh_bus_reset_handler,
84 };
85
86 static int __devinit asd_map_memio(struct asd_ha_struct *asd_ha)
87 {
88 int err, i;
89 struct asd_ha_addrspace *io_handle;
90
91 asd_ha->iospace = 0;
92 for (i = 0; i < 3; i += 2) {
93 io_handle = &asd_ha->io_handle[i==0?0:1];
94 io_handle->start = pci_resource_start(asd_ha->pcidev, i);
95 io_handle->len = pci_resource_len(asd_ha->pcidev, i);
96 io_handle->flags = pci_resource_flags(asd_ha->pcidev, i);
97 err = -ENODEV;
98 if (!io_handle->start || !io_handle->len) {
99 asd_printk("MBAR%d start or length for %s is 0.\n",
100 i==0?0:1, pci_name(asd_ha->pcidev));
101 goto Err;
102 }
103 err = pci_request_region(asd_ha->pcidev, i, ASD_DRIVER_NAME);
104 if (err) {
105 asd_printk("couldn't reserve memory region for %s\n",
106 pci_name(asd_ha->pcidev));
107 goto Err;
108 }
109 if (io_handle->flags & IORESOURCE_CACHEABLE)
110 io_handle->addr = ioremap(io_handle->start,
111 io_handle->len);
112 else
113 io_handle->addr = ioremap_nocache(io_handle->start,
114 io_handle->len);
115 if (!io_handle->addr) {
116 asd_printk("couldn't map MBAR%d of %s\n", i==0?0:1,
117 pci_name(asd_ha->pcidev));
118 goto Err_unreq;
119 }
120 }
121
122 return 0;
123 Err_unreq:
124 pci_release_region(asd_ha->pcidev, i);
125 Err:
126 if (i > 0) {
127 io_handle = &asd_ha->io_handle[0];
128 iounmap(io_handle->addr);
129 pci_release_region(asd_ha->pcidev, 0);
130 }
131 return err;
132 }
133
134 static void __devexit asd_unmap_memio(struct asd_ha_struct *asd_ha)
135 {
136 struct asd_ha_addrspace *io_handle;
137
138 io_handle = &asd_ha->io_handle[1];
139 iounmap(io_handle->addr);
140 pci_release_region(asd_ha->pcidev, 2);
141
142 io_handle = &asd_ha->io_handle[0];
143 iounmap(io_handle->addr);
144 pci_release_region(asd_ha->pcidev, 0);
145 }
146
147 static int __devinit asd_map_ioport(struct asd_ha_struct *asd_ha)
148 {
149 int i = PCI_IOBAR_OFFSET, err;
150 struct asd_ha_addrspace *io_handle = &asd_ha->io_handle[0];
151
152 asd_ha->iospace = 1;
153 io_handle->start = pci_resource_start(asd_ha->pcidev, i);
154 io_handle->len = pci_resource_len(asd_ha->pcidev, i);
155 io_handle->flags = pci_resource_flags(asd_ha->pcidev, i);
156 io_handle->addr = (void __iomem *) io_handle->start;
157 if (!io_handle->start || !io_handle->len) {
158 asd_printk("couldn't get IO ports for %s\n",
159 pci_name(asd_ha->pcidev));
160 return -ENODEV;
161 }
162 err = pci_request_region(asd_ha->pcidev, i, ASD_DRIVER_NAME);
163 if (err) {
164 asd_printk("couldn't reserve io space for %s\n",
165 pci_name(asd_ha->pcidev));
166 }
167
168 return err;
169 }
170
171 static void __devexit asd_unmap_ioport(struct asd_ha_struct *asd_ha)
172 {
173 pci_release_region(asd_ha->pcidev, PCI_IOBAR_OFFSET);
174 }
175
176 static int __devinit asd_map_ha(struct asd_ha_struct *asd_ha)
177 {
178 int err;
179 u16 cmd_reg;
180
181 err = pci_read_config_word(asd_ha->pcidev, PCI_COMMAND, &cmd_reg);
182 if (err) {
183 asd_printk("couldn't read command register of %s\n",
184 pci_name(asd_ha->pcidev));
185 goto Err;
186 }
187
188 err = -ENODEV;
189 if (cmd_reg & PCI_COMMAND_MEMORY) {
190 if ((err = asd_map_memio(asd_ha)))
191 goto Err;
192 } else if (cmd_reg & PCI_COMMAND_IO) {
193 if ((err = asd_map_ioport(asd_ha)))
194 goto Err;
195 asd_printk("%s ioport mapped -- upgrade your hardware\n",
196 pci_name(asd_ha->pcidev));
197 } else {
198 asd_printk("no proper device access to %s\n",
199 pci_name(asd_ha->pcidev));
200 goto Err;
201 }
202
203 return 0;
204 Err:
205 return err;
206 }
207
208 static void __devexit asd_unmap_ha(struct asd_ha_struct *asd_ha)
209 {
210 if (asd_ha->iospace)
211 asd_unmap_ioport(asd_ha);
212 else
213 asd_unmap_memio(asd_ha);
214 }
215
216 static const char *asd_dev_rev[30] = {
217 [0] = "A0",
218 [1] = "A1",
219 [8] = "B0",
220 };
221
222 static int __devinit asd_common_setup(struct asd_ha_struct *asd_ha)
223 {
224 int err, i;
225
226 err = pci_read_config_byte(asd_ha->pcidev, PCI_REVISION_ID,
227 &asd_ha->revision_id);
228 if (err) {
229 asd_printk("couldn't read REVISION ID register of %s\n",
230 pci_name(asd_ha->pcidev));
231 goto Err;
232 }
233 err = -ENODEV;
234 if (asd_ha->revision_id < AIC9410_DEV_REV_B0) {
235 asd_printk("%s is revision %s (%X), which is not supported\n",
236 pci_name(asd_ha->pcidev),
237 asd_dev_rev[asd_ha->revision_id],
238 asd_ha->revision_id);
239 goto Err;
240 }
241 /* Provide some sane default values. */
242 asd_ha->hw_prof.max_scbs = 512;
243 asd_ha->hw_prof.max_ddbs = ASD_MAX_DDBS;
244 asd_ha->hw_prof.num_phys = ASD_MAX_PHYS;
245 /* All phys are enabled, by default. */
246 asd_ha->hw_prof.enabled_phys = 0xFF;
247 for (i = 0; i < ASD_MAX_PHYS; i++) {
248 asd_ha->hw_prof.phy_desc[i].max_sas_lrate =
249 SAS_LINK_RATE_3_0_GBPS;
250 asd_ha->hw_prof.phy_desc[i].min_sas_lrate =
251 SAS_LINK_RATE_1_5_GBPS;
252 asd_ha->hw_prof.phy_desc[i].max_sata_lrate =
253 SAS_LINK_RATE_1_5_GBPS;
254 asd_ha->hw_prof.phy_desc[i].min_sata_lrate =
255 SAS_LINK_RATE_1_5_GBPS;
256 }
257
258 return 0;
259 Err:
260 return err;
261 }
262
263 static int __devinit asd_aic9410_setup(struct asd_ha_struct *asd_ha)
264 {
265 int err = asd_common_setup(asd_ha);
266
267 if (err)
268 return err;
269
270 asd_ha->hw_prof.addr_range = 8;
271 asd_ha->hw_prof.port_name_base = 0;
272 asd_ha->hw_prof.dev_name_base = 8;
273 asd_ha->hw_prof.sata_name_base = 16;
274
275 return 0;
276 }
277
278 static int __devinit asd_aic9405_setup(struct asd_ha_struct *asd_ha)
279 {
280 int err = asd_common_setup(asd_ha);
281
282 if (err)
283 return err;
284
285 asd_ha->hw_prof.addr_range = 4;
286 asd_ha->hw_prof.port_name_base = 0;
287 asd_ha->hw_prof.dev_name_base = 4;
288 asd_ha->hw_prof.sata_name_base = 8;
289
290 return 0;
291 }
292
293 static ssize_t asd_show_dev_rev(struct device *dev,
294 struct device_attribute *attr, char *buf)
295 {
296 struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev);
297 return snprintf(buf, PAGE_SIZE, "%s\n",
298 asd_dev_rev[asd_ha->revision_id]);
299 }
300 static DEVICE_ATTR(revision, S_IRUGO, asd_show_dev_rev, NULL);
301
302 static ssize_t asd_show_dev_bios_build(struct device *dev,
303 struct device_attribute *attr,char *buf)
304 {
305 struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev);
306 return snprintf(buf, PAGE_SIZE, "%d\n", asd_ha->hw_prof.bios.bld);
307 }
308 static DEVICE_ATTR(bios_build, S_IRUGO, asd_show_dev_bios_build, NULL);
309
310 static ssize_t asd_show_dev_pcba_sn(struct device *dev,
311 struct device_attribute *attr, char *buf)
312 {
313 struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev);
314 return snprintf(buf, PAGE_SIZE, "%s\n", asd_ha->hw_prof.pcba_sn);
315 }
316 static DEVICE_ATTR(pcba_sn, S_IRUGO, asd_show_dev_pcba_sn, NULL);
317
318 static int asd_create_dev_attrs(struct asd_ha_struct *asd_ha)
319 {
320 int err;
321
322 err = device_create_file(&asd_ha->pcidev->dev, &dev_attr_revision);
323 if (err)
324 return err;
325
326 err = device_create_file(&asd_ha->pcidev->dev, &dev_attr_bios_build);
327 if (err)
328 goto err_rev;
329
330 err = device_create_file(&asd_ha->pcidev->dev, &dev_attr_pcba_sn);
331 if (err)
332 goto err_biosb;
333
334 return 0;
335
336 err_biosb:
337 device_remove_file(&asd_ha->pcidev->dev, &dev_attr_bios_build);
338 err_rev:
339 device_remove_file(&asd_ha->pcidev->dev, &dev_attr_revision);
340 return err;
341 }
342
343 static void asd_remove_dev_attrs(struct asd_ha_struct *asd_ha)
344 {
345 device_remove_file(&asd_ha->pcidev->dev, &dev_attr_revision);
346 device_remove_file(&asd_ha->pcidev->dev, &dev_attr_bios_build);
347 device_remove_file(&asd_ha->pcidev->dev, &dev_attr_pcba_sn);
348 }
349
350 /* The first entry, 0, is used for dynamic ids, the rest for devices
351 * we know about.
352 */
353 static struct asd_pcidev_struct {
354 const char * name;
355 int (*setup)(struct asd_ha_struct *asd_ha);
356 } asd_pcidev_data[] = {
357 /* Id 0 is used for dynamic ids. */
358 { .name = "Adaptec AIC-94xx SAS/SATA Host Adapter",
359 .setup = asd_aic9410_setup
360 },
361 { .name = "Adaptec AIC-9410W SAS/SATA Host Adapter",
362 .setup = asd_aic9410_setup
363 },
364 { .name = "Adaptec AIC-9405W SAS/SATA Host Adapter",
365 .setup = asd_aic9405_setup
366 },
367 };
368
369 static inline int asd_create_ha_caches(struct asd_ha_struct *asd_ha)
370 {
371 asd_ha->scb_pool = dma_pool_create(ASD_DRIVER_NAME "_scb_pool",
372 &asd_ha->pcidev->dev,
373 sizeof(struct scb),
374 8, 0);
375 if (!asd_ha->scb_pool) {
376 asd_printk("couldn't create scb pool\n");
377 return -ENOMEM;
378 }
379
380 return 0;
381 }
382
383 /**
384 * asd_free_edbs -- free empty data buffers
385 * asd_ha: pointer to host adapter structure
386 */
387 static inline void asd_free_edbs(struct asd_ha_struct *asd_ha)
388 {
389 struct asd_seq_data *seq = &asd_ha->seq;
390 int i;
391
392 for (i = 0; i < seq->num_edbs; i++)
393 asd_free_coherent(asd_ha, seq->edb_arr[i]);
394 kfree(seq->edb_arr);
395 seq->edb_arr = NULL;
396 }
397
398 static inline void asd_free_escbs(struct asd_ha_struct *asd_ha)
399 {
400 struct asd_seq_data *seq = &asd_ha->seq;
401 int i;
402
403 for (i = 0; i < seq->num_escbs; i++) {
404 if (!list_empty(&seq->escb_arr[i]->list))
405 list_del_init(&seq->escb_arr[i]->list);
406
407 asd_ascb_free(seq->escb_arr[i]);
408 }
409 kfree(seq->escb_arr);
410 seq->escb_arr = NULL;
411 }
412
413 static inline void asd_destroy_ha_caches(struct asd_ha_struct *asd_ha)
414 {
415 int i;
416
417 if (asd_ha->hw_prof.ddb_ext)
418 asd_free_coherent(asd_ha, asd_ha->hw_prof.ddb_ext);
419 if (asd_ha->hw_prof.scb_ext)
420 asd_free_coherent(asd_ha, asd_ha->hw_prof.scb_ext);
421
422 if (asd_ha->hw_prof.ddb_bitmap)
423 kfree(asd_ha->hw_prof.ddb_bitmap);
424 asd_ha->hw_prof.ddb_bitmap = NULL;
425
426 for (i = 0; i < ASD_MAX_PHYS; i++) {
427 struct asd_phy *phy = &asd_ha->phys[i];
428
429 asd_free_coherent(asd_ha, phy->id_frm_tok);
430 }
431 if (asd_ha->seq.escb_arr)
432 asd_free_escbs(asd_ha);
433 if (asd_ha->seq.edb_arr)
434 asd_free_edbs(asd_ha);
435 if (asd_ha->hw_prof.ue.area) {
436 kfree(asd_ha->hw_prof.ue.area);
437 asd_ha->hw_prof.ue.area = NULL;
438 }
439 if (asd_ha->seq.tc_index_array) {
440 kfree(asd_ha->seq.tc_index_array);
441 kfree(asd_ha->seq.tc_index_bitmap);
442 asd_ha->seq.tc_index_array = NULL;
443 asd_ha->seq.tc_index_bitmap = NULL;
444 }
445 if (asd_ha->seq.actual_dl) {
446 asd_free_coherent(asd_ha, asd_ha->seq.actual_dl);
447 asd_ha->seq.actual_dl = NULL;
448 asd_ha->seq.dl = NULL;
449 }
450 if (asd_ha->seq.next_scb.vaddr) {
451 dma_pool_free(asd_ha->scb_pool, asd_ha->seq.next_scb.vaddr,
452 asd_ha->seq.next_scb.dma_handle);
453 asd_ha->seq.next_scb.vaddr = NULL;
454 }
455 dma_pool_destroy(asd_ha->scb_pool);
456 asd_ha->scb_pool = NULL;
457 }
458
459 struct kmem_cache *asd_dma_token_cache;
460 struct kmem_cache *asd_ascb_cache;
461
462 static int asd_create_global_caches(void)
463 {
464 if (!asd_dma_token_cache) {
465 asd_dma_token_cache
466 = kmem_cache_create(ASD_DRIVER_NAME "_dma_token",
467 sizeof(struct asd_dma_tok),
468 0,
469 SLAB_HWCACHE_ALIGN,
470 NULL, NULL);
471 if (!asd_dma_token_cache) {
472 asd_printk("couldn't create dma token cache\n");
473 return -ENOMEM;
474 }
475 }
476
477 if (!asd_ascb_cache) {
478 asd_ascb_cache = kmem_cache_create(ASD_DRIVER_NAME "_ascb",
479 sizeof(struct asd_ascb),
480 0,
481 SLAB_HWCACHE_ALIGN,
482 NULL, NULL);
483 if (!asd_ascb_cache) {
484 asd_printk("couldn't create ascb cache\n");
485 goto Err;
486 }
487 }
488
489 return 0;
490 Err:
491 kmem_cache_destroy(asd_dma_token_cache);
492 asd_dma_token_cache = NULL;
493 return -ENOMEM;
494 }
495
496 static void asd_destroy_global_caches(void)
497 {
498 if (asd_dma_token_cache)
499 kmem_cache_destroy(asd_dma_token_cache);
500 asd_dma_token_cache = NULL;
501
502 if (asd_ascb_cache)
503 kmem_cache_destroy(asd_ascb_cache);
504 asd_ascb_cache = NULL;
505 }
506
507 static int asd_register_sas_ha(struct asd_ha_struct *asd_ha)
508 {
509 int i;
510 struct asd_sas_phy **sas_phys =
511 kmalloc(ASD_MAX_PHYS * sizeof(struct asd_sas_phy), GFP_KERNEL);
512 struct asd_sas_port **sas_ports =
513 kmalloc(ASD_MAX_PHYS * sizeof(struct asd_sas_port), GFP_KERNEL);
514
515 if (!sas_phys || !sas_ports) {
516 kfree(sas_phys);
517 kfree(sas_ports);
518 return -ENOMEM;
519 }
520
521 asd_ha->sas_ha.sas_ha_name = (char *) asd_ha->name;
522 asd_ha->sas_ha.lldd_module = THIS_MODULE;
523 asd_ha->sas_ha.sas_addr = &asd_ha->hw_prof.sas_addr[0];
524
525 for (i = 0; i < ASD_MAX_PHYS; i++) {
526 sas_phys[i] = &asd_ha->phys[i].sas_phy;
527 sas_ports[i] = &asd_ha->ports[i];
528 }
529
530 asd_ha->sas_ha.sas_phy = sas_phys;
531 asd_ha->sas_ha.sas_port= sas_ports;
532 asd_ha->sas_ha.num_phys= ASD_MAX_PHYS;
533
534 asd_ha->sas_ha.lldd_queue_size = asd_ha->seq.can_queue;
535 asd_ha->sas_ha.lldd_max_execute_num = lldd_max_execute_num;
536
537 return sas_register_ha(&asd_ha->sas_ha);
538 }
539
540 static int asd_unregister_sas_ha(struct asd_ha_struct *asd_ha)
541 {
542 int err;
543
544 err = sas_unregister_ha(&asd_ha->sas_ha);
545
546 sas_remove_host(asd_ha->sas_ha.core.shost);
547 scsi_remove_host(asd_ha->sas_ha.core.shost);
548 scsi_host_put(asd_ha->sas_ha.core.shost);
549
550 kfree(asd_ha->sas_ha.sas_phy);
551 kfree(asd_ha->sas_ha.sas_port);
552
553 return err;
554 }
555
556 static int __devinit asd_pci_probe(struct pci_dev *dev,
557 const struct pci_device_id *id)
558 {
559 struct asd_pcidev_struct *asd_dev;
560 unsigned asd_id = (unsigned) id->driver_data;
561 struct asd_ha_struct *asd_ha;
562 struct Scsi_Host *shost;
563 int err;
564
565 if (asd_id >= ARRAY_SIZE(asd_pcidev_data)) {
566 asd_printk("wrong driver_data in PCI table\n");
567 return -ENODEV;
568 }
569
570 if ((err = pci_enable_device(dev))) {
571 asd_printk("couldn't enable device %s\n", pci_name(dev));
572 return err;
573 }
574
575 pci_set_master(dev);
576
577 err = -ENOMEM;
578
579 shost = scsi_host_alloc(&aic94xx_sht, sizeof(void *));
580 if (!shost)
581 goto Err;
582
583 asd_dev = &asd_pcidev_data[asd_id];
584
585 asd_ha = kzalloc(sizeof(*asd_ha), GFP_KERNEL);
586 if (!asd_ha) {
587 asd_printk("out of memory\n");
588 goto Err;
589 }
590 asd_ha->pcidev = dev;
591 asd_ha->sas_ha.pcidev = asd_ha->pcidev;
592 asd_ha->sas_ha.lldd_ha = asd_ha;
593
594 asd_ha->name = asd_dev->name;
595 asd_printk("found %s, device %s\n", asd_ha->name, pci_name(dev));
596
597 SHOST_TO_SAS_HA(shost) = &asd_ha->sas_ha;
598 asd_ha->sas_ha.core.shost = shost;
599 shost->transportt = aic94xx_transport_template;
600 shost->max_id = ~0;
601 shost->max_lun = ~0;
602 shost->max_cmd_len = 16;
603
604 err = scsi_add_host(shost, &dev->dev);
605 if (err) {
606 scsi_host_put(shost);
607 goto Err_free;
608 }
609
610
611
612 err = asd_dev->setup(asd_ha);
613 if (err)
614 goto Err_free;
615
616 err = -ENODEV;
617 if (!pci_set_dma_mask(dev, DMA_64BIT_MASK)
618 && !pci_set_consistent_dma_mask(dev, DMA_64BIT_MASK))
619 ;
620 else if (!pci_set_dma_mask(dev, DMA_32BIT_MASK)
621 && !pci_set_consistent_dma_mask(dev, DMA_32BIT_MASK))
622 ;
623 else {
624 asd_printk("no suitable DMA mask for %s\n", pci_name(dev));
625 goto Err_free;
626 }
627
628 pci_set_drvdata(dev, asd_ha);
629
630 err = asd_map_ha(asd_ha);
631 if (err)
632 goto Err_free;
633
634 err = asd_create_ha_caches(asd_ha);
635 if (err)
636 goto Err_unmap;
637
638 err = asd_init_hw(asd_ha);
639 if (err)
640 goto Err_free_cache;
641
642 asd_printk("device %s: SAS addr %llx, PCBA SN %s, %d phys, %d enabled "
643 "phys, flash %s, BIOS %s%d\n",
644 pci_name(dev), SAS_ADDR(asd_ha->hw_prof.sas_addr),
645 asd_ha->hw_prof.pcba_sn, asd_ha->hw_prof.max_phys,
646 asd_ha->hw_prof.num_phys,
647 asd_ha->hw_prof.flash.present ? "present" : "not present",
648 asd_ha->hw_prof.bios.present ? "build " : "not present",
649 asd_ha->hw_prof.bios.bld);
650
651 shost->can_queue = asd_ha->seq.can_queue;
652
653 if (use_msi)
654 pci_enable_msi(asd_ha->pcidev);
655
656 err = request_irq(asd_ha->pcidev->irq, asd_hw_isr, IRQF_SHARED,
657 ASD_DRIVER_NAME, asd_ha);
658 if (err) {
659 asd_printk("couldn't get irq %d for %s\n",
660 asd_ha->pcidev->irq, pci_name(asd_ha->pcidev));
661 goto Err_irq;
662 }
663 asd_enable_ints(asd_ha);
664
665 err = asd_init_post_escbs(asd_ha);
666 if (err) {
667 asd_printk("couldn't post escbs for %s\n",
668 pci_name(asd_ha->pcidev));
669 goto Err_escbs;
670 }
671 ASD_DPRINTK("escbs posted\n");
672
673 err = asd_create_dev_attrs(asd_ha);
674 if (err)
675 goto Err_dev_attrs;
676
677 err = asd_register_sas_ha(asd_ha);
678 if (err)
679 goto Err_reg_sas;
680
681 scsi_scan_host(shost);
682
683 return 0;
684
685 Err_reg_sas:
686 asd_remove_dev_attrs(asd_ha);
687 Err_dev_attrs:
688 Err_escbs:
689 asd_disable_ints(asd_ha);
690 free_irq(dev->irq, asd_ha);
691 Err_irq:
692 if (use_msi)
693 pci_disable_msi(dev);
694 asd_chip_hardrst(asd_ha);
695 Err_free_cache:
696 asd_destroy_ha_caches(asd_ha);
697 Err_unmap:
698 asd_unmap_ha(asd_ha);
699 Err_free:
700 kfree(asd_ha);
701 scsi_remove_host(shost);
702 Err:
703 pci_disable_device(dev);
704 return err;
705 }
706
707 static void asd_free_queues(struct asd_ha_struct *asd_ha)
708 {
709 unsigned long flags;
710 LIST_HEAD(pending);
711 struct list_head *n, *pos;
712
713 spin_lock_irqsave(&asd_ha->seq.pend_q_lock, flags);
714 asd_ha->seq.pending = 0;
715 list_splice_init(&asd_ha->seq.pend_q, &pending);
716 spin_unlock_irqrestore(&asd_ha->seq.pend_q_lock, flags);
717
718 if (!list_empty(&pending))
719 ASD_DPRINTK("Uh-oh! Pending is not empty!\n");
720
721 list_for_each_safe(pos, n, &pending) {
722 struct asd_ascb *ascb = list_entry(pos, struct asd_ascb, list);
723 /*
724 * Delete unexpired ascb timers. This may happen if we issue
725 * a CONTROL PHY scb to an adapter and rmmod before the scb
726 * times out. Apparently we don't wait for the CONTROL PHY
727 * to complete, so it doesn't matter if we kill the timer.
728 */
729 del_timer_sync(&ascb->timer);
730 WARN_ON(ascb->scb->header.opcode != CONTROL_PHY);
731
732 list_del_init(pos);
733 ASD_DPRINTK("freeing from pending\n");
734 asd_ascb_free(ascb);
735 }
736 }
737
738 static void asd_turn_off_leds(struct asd_ha_struct *asd_ha)
739 {
740 u8 phy_mask = asd_ha->hw_prof.enabled_phys;
741 u8 i;
742
743 for_each_phy(phy_mask, phy_mask, i) {
744 asd_turn_led(asd_ha, i, 0);
745 asd_control_led(asd_ha, i, 0);
746 }
747 }
748
749 static void __devexit asd_pci_remove(struct pci_dev *dev)
750 {
751 struct asd_ha_struct *asd_ha = pci_get_drvdata(dev);
752
753 if (!asd_ha)
754 return;
755
756 asd_unregister_sas_ha(asd_ha);
757
758 asd_disable_ints(asd_ha);
759
760 asd_remove_dev_attrs(asd_ha);
761
762 /* XXX more here as needed */
763
764 free_irq(dev->irq, asd_ha);
765 if (use_msi)
766 pci_disable_msi(asd_ha->pcidev);
767 asd_turn_off_leds(asd_ha);
768 asd_chip_hardrst(asd_ha);
769 asd_free_queues(asd_ha);
770 asd_destroy_ha_caches(asd_ha);
771 asd_unmap_ha(asd_ha);
772 kfree(asd_ha);
773 pci_disable_device(dev);
774 return;
775 }
776
777 static void asd_scan_start(struct Scsi_Host *shost)
778 {
779 struct asd_ha_struct *asd_ha;
780 int err;
781
782 asd_ha = SHOST_TO_SAS_HA(shost)->lldd_ha;
783 err = asd_enable_phys(asd_ha, asd_ha->hw_prof.enabled_phys);
784 if (err)
785 asd_printk("Couldn't enable phys, err:%d\n", err);
786 }
787
788 static int asd_scan_finished(struct Scsi_Host *shost, unsigned long time)
789 {
790 /* give the phy enabling interrupt event time to come in (1s
791 * is empirically about all it takes) */
792 if (time < HZ)
793 return 0;
794 /* Wait for discovery to finish */
795 scsi_flush_work(shost);
796 return 1;
797 }
798
799 static ssize_t asd_version_show(struct device_driver *driver, char *buf)
800 {
801 return snprintf(buf, PAGE_SIZE, "%s\n", ASD_DRIVER_VERSION);
802 }
803 static DRIVER_ATTR(version, S_IRUGO, asd_version_show, NULL);
804
805 static int asd_create_driver_attrs(struct device_driver *driver)
806 {
807 return driver_create_file(driver, &driver_attr_version);
808 }
809
810 static void asd_remove_driver_attrs(struct device_driver *driver)
811 {
812 driver_remove_file(driver, &driver_attr_version);
813 }
814
815 static struct sas_domain_function_template aic94xx_transport_functions = {
816 .lldd_dev_found = asd_dev_found,
817 .lldd_dev_gone = asd_dev_gone,
818
819 .lldd_execute_task = asd_execute_task,
820
821 .lldd_abort_task = asd_abort_task,
822 .lldd_abort_task_set = asd_abort_task_set,
823 .lldd_clear_aca = asd_clear_aca,
824 .lldd_clear_task_set = asd_clear_task_set,
825 .lldd_I_T_nexus_reset = NULL,
826 .lldd_lu_reset = asd_lu_reset,
827 .lldd_query_task = asd_query_task,
828
829 .lldd_clear_nexus_port = asd_clear_nexus_port,
830 .lldd_clear_nexus_ha = asd_clear_nexus_ha,
831
832 .lldd_control_phy = asd_control_phy,
833 };
834
835 static const struct pci_device_id aic94xx_pci_table[] __devinitdata = {
836 {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_RAZOR10),
837 0, 0, 1},
838 {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_RAZOR12),
839 0, 0, 1},
840 {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_RAZOR1E),
841 0, 0, 1},
842 {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_RAZOR1F),
843 0, 0, 1},
844 {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_RAZOR30),
845 0, 0, 2},
846 {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_RAZOR32),
847 0, 0, 2},
848 {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_RAZOR3E),
849 0, 0, 2},
850 {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_RAZOR3F),
851 0, 0, 2},
852 {}
853 };
854
855 MODULE_DEVICE_TABLE(pci, aic94xx_pci_table);
856
857 static struct pci_driver aic94xx_pci_driver = {
858 .name = ASD_DRIVER_NAME,
859 .id_table = aic94xx_pci_table,
860 .probe = asd_pci_probe,
861 .remove = __devexit_p(asd_pci_remove),
862 };
863
864 static int __init aic94xx_init(void)
865 {
866 int err;
867
868
869 asd_printk("%s version %s loaded\n", ASD_DRIVER_DESCRIPTION,
870 ASD_DRIVER_VERSION);
871
872 err = asd_create_global_caches();
873 if (err)
874 return err;
875
876 aic94xx_transport_template =
877 sas_domain_attach_transport(&aic94xx_transport_functions);
878 if (!aic94xx_transport_template)
879 goto out_destroy_caches;
880
881 err = pci_register_driver(&aic94xx_pci_driver);
882 if (err)
883 goto out_release_transport;
884
885 err = asd_create_driver_attrs(&aic94xx_pci_driver.driver);
886 if (err)
887 goto out_unregister_pcidrv;
888
889 return err;
890
891 out_unregister_pcidrv:
892 pci_unregister_driver(&aic94xx_pci_driver);
893 out_release_transport:
894 sas_release_transport(aic94xx_transport_template);
895 out_destroy_caches:
896 asd_destroy_global_caches();
897
898 return err;
899 }
900
901 static void __exit aic94xx_exit(void)
902 {
903 asd_remove_driver_attrs(&aic94xx_pci_driver.driver);
904 pci_unregister_driver(&aic94xx_pci_driver);
905 sas_release_transport(aic94xx_transport_template);
906 asd_release_firmware();
907 asd_destroy_global_caches();
908 asd_printk("%s version %s unloaded\n", ASD_DRIVER_DESCRIPTION,
909 ASD_DRIVER_VERSION);
910 }
911
912 module_init(aic94xx_init);
913 module_exit(aic94xx_exit);
914
915 MODULE_AUTHOR("Luben Tuikov <luben_tuikov@adaptec.com>");
916 MODULE_DESCRIPTION(ASD_DRIVER_DESCRIPTION);
917 MODULE_LICENSE("GPL v2");
918 MODULE_VERSION(ASD_DRIVER_VERSION);
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree