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[SCSI] aic94xx: Free scsi host on error
[linux-2.6.git] / drivers / scsi / aic94xx / aic94xx_init.c
blobb70d6e7f96e951e55829cc118337946e80dc7101
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 .slave_alloc = sas_slave_alloc,
85 .target_destroy = sas_target_destroy,
86 .ioctl = sas_ioctl,
87 };
88
89 static int __devinit asd_map_memio(struct asd_ha_struct *asd_ha)
90 {
91 int err, i;
92 struct asd_ha_addrspace *io_handle;
93
94 asd_ha->iospace = 0;
95 for (i = 0; i < 3; i += 2) {
96 io_handle = &asd_ha->io_handle[i==0?0:1];
97 io_handle->start = pci_resource_start(asd_ha->pcidev, i);
98 io_handle->len = pci_resource_len(asd_ha->pcidev, i);
99 io_handle->flags = pci_resource_flags(asd_ha->pcidev, i);
100 err = -ENODEV;
101 if (!io_handle->start || !io_handle->len) {
102 asd_printk("MBAR%d start or length for %s is 0.\n",
103 i==0?0:1, pci_name(asd_ha->pcidev));
104 goto Err;
105 }
106 err = pci_request_region(asd_ha->pcidev, i, ASD_DRIVER_NAME);
107 if (err) {
108 asd_printk("couldn't reserve memory region for %s\n",
109 pci_name(asd_ha->pcidev));
110 goto Err;
111 }
112 if (io_handle->flags & IORESOURCE_CACHEABLE)
113 io_handle->addr = ioremap(io_handle->start,
114 io_handle->len);
115 else
116 io_handle->addr = ioremap_nocache(io_handle->start,
117 io_handle->len);
118 if (!io_handle->addr) {
119 asd_printk("couldn't map MBAR%d of %s\n", i==0?0:1,
120 pci_name(asd_ha->pcidev));
121 goto Err_unreq;
122 }
123 }
124
125 return 0;
126 Err_unreq:
127 pci_release_region(asd_ha->pcidev, i);
128 Err:
129 if (i > 0) {
130 io_handle = &asd_ha->io_handle[0];
131 iounmap(io_handle->addr);
132 pci_release_region(asd_ha->pcidev, 0);
133 }
134 return err;
135 }
136
137 static void __devexit asd_unmap_memio(struct asd_ha_struct *asd_ha)
138 {
139 struct asd_ha_addrspace *io_handle;
140
141 io_handle = &asd_ha->io_handle[1];
142 iounmap(io_handle->addr);
143 pci_release_region(asd_ha->pcidev, 2);
144
145 io_handle = &asd_ha->io_handle[0];
146 iounmap(io_handle->addr);
147 pci_release_region(asd_ha->pcidev, 0);
148 }
149
150 static int __devinit asd_map_ioport(struct asd_ha_struct *asd_ha)
151 {
152 int i = PCI_IOBAR_OFFSET, err;
153 struct asd_ha_addrspace *io_handle = &asd_ha->io_handle[0];
154
155 asd_ha->iospace = 1;
156 io_handle->start = pci_resource_start(asd_ha->pcidev, i);
157 io_handle->len = pci_resource_len(asd_ha->pcidev, i);
158 io_handle->flags = pci_resource_flags(asd_ha->pcidev, i);
159 io_handle->addr = (void __iomem *) io_handle->start;
160 if (!io_handle->start || !io_handle->len) {
161 asd_printk("couldn't get IO ports for %s\n",
162 pci_name(asd_ha->pcidev));
163 return -ENODEV;
164 }
165 err = pci_request_region(asd_ha->pcidev, i, ASD_DRIVER_NAME);
166 if (err) {
167 asd_printk("couldn't reserve io space for %s\n",
168 pci_name(asd_ha->pcidev));
169 }
170
171 return err;
172 }
173
174 static void __devexit asd_unmap_ioport(struct asd_ha_struct *asd_ha)
175 {
176 pci_release_region(asd_ha->pcidev, PCI_IOBAR_OFFSET);
177 }
178
179 static int __devinit asd_map_ha(struct asd_ha_struct *asd_ha)
180 {
181 int err;
182 u16 cmd_reg;
183
184 err = pci_read_config_word(asd_ha->pcidev, PCI_COMMAND, &cmd_reg);
185 if (err) {
186 asd_printk("couldn't read command register of %s\n",
187 pci_name(asd_ha->pcidev));
188 goto Err;
189 }
190
191 err = -ENODEV;
192 if (cmd_reg & PCI_COMMAND_MEMORY) {
193 if ((err = asd_map_memio(asd_ha)))
194 goto Err;
195 } else if (cmd_reg & PCI_COMMAND_IO) {
196 if ((err = asd_map_ioport(asd_ha)))
197 goto Err;
198 asd_printk("%s ioport mapped -- upgrade your hardware\n",
199 pci_name(asd_ha->pcidev));
200 } else {
201 asd_printk("no proper device access to %s\n",
202 pci_name(asd_ha->pcidev));
203 goto Err;
204 }
205
206 return 0;
207 Err:
208 return err;
209 }
210
211 static void __devexit asd_unmap_ha(struct asd_ha_struct *asd_ha)
212 {
213 if (asd_ha->iospace)
214 asd_unmap_ioport(asd_ha);
215 else
216 asd_unmap_memio(asd_ha);
217 }
218
219 static const char *asd_dev_rev[30] = {
220 [0] = "A0",
221 [1] = "A1",
222 [8] = "B0",
223 };
224
225 static int __devinit asd_common_setup(struct asd_ha_struct *asd_ha)
226 {
227 int err, i;
228
229 asd_ha->revision_id = asd_ha->pcidev->revision;
230
231 err = -ENODEV;
232 if (asd_ha->revision_id < AIC9410_DEV_REV_B0) {
233 asd_printk("%s is revision %s (%X), which is not supported\n",
234 pci_name(asd_ha->pcidev),
235 asd_dev_rev[asd_ha->revision_id],
236 asd_ha->revision_id);
237 goto Err;
238 }
239 /* Provide some sane default values. */
240 asd_ha->hw_prof.max_scbs = 512;
241 asd_ha->hw_prof.max_ddbs = ASD_MAX_DDBS;
242 asd_ha->hw_prof.num_phys = ASD_MAX_PHYS;
243 /* All phys are enabled, by default. */
244 asd_ha->hw_prof.enabled_phys = 0xFF;
245 for (i = 0; i < ASD_MAX_PHYS; i++) {
246 asd_ha->hw_prof.phy_desc[i].max_sas_lrate =
247 SAS_LINK_RATE_3_0_GBPS;
248 asd_ha->hw_prof.phy_desc[i].min_sas_lrate =
249 SAS_LINK_RATE_1_5_GBPS;
250 asd_ha->hw_prof.phy_desc[i].max_sata_lrate =
251 SAS_LINK_RATE_1_5_GBPS;
252 asd_ha->hw_prof.phy_desc[i].min_sata_lrate =
253 SAS_LINK_RATE_1_5_GBPS;
254 }
255
256 return 0;
257 Err:
258 return err;
259 }
260
261 static int __devinit asd_aic9410_setup(struct asd_ha_struct *asd_ha)
262 {
263 int err = asd_common_setup(asd_ha);
264
265 if (err)
266 return err;
267
268 asd_ha->hw_prof.addr_range = 8;
269 asd_ha->hw_prof.port_name_base = 0;
270 asd_ha->hw_prof.dev_name_base = 8;
271 asd_ha->hw_prof.sata_name_base = 16;
272
273 return 0;
274 }
275
276 static int __devinit asd_aic9405_setup(struct asd_ha_struct *asd_ha)
277 {
278 int err = asd_common_setup(asd_ha);
279
280 if (err)
281 return err;
282
283 asd_ha->hw_prof.addr_range = 4;
284 asd_ha->hw_prof.port_name_base = 0;
285 asd_ha->hw_prof.dev_name_base = 4;
286 asd_ha->hw_prof.sata_name_base = 8;
287
288 return 0;
289 }
290
291 static ssize_t asd_show_dev_rev(struct device *dev,
292 struct device_attribute *attr, char *buf)
293 {
294 struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev);
295 return snprintf(buf, PAGE_SIZE, "%s\n",
296 asd_dev_rev[asd_ha->revision_id]);
297 }
298 static DEVICE_ATTR(revision, S_IRUGO, asd_show_dev_rev, NULL);
299
300 static ssize_t asd_show_dev_bios_build(struct device *dev,
301 struct device_attribute *attr,char *buf)
302 {
303 struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev);
304 return snprintf(buf, PAGE_SIZE, "%d\n", asd_ha->hw_prof.bios.bld);
305 }
306 static DEVICE_ATTR(bios_build, S_IRUGO, asd_show_dev_bios_build, NULL);
307
308 static ssize_t asd_show_dev_pcba_sn(struct device *dev,
309 struct device_attribute *attr, char *buf)
310 {
311 struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev);
312 return snprintf(buf, PAGE_SIZE, "%s\n", asd_ha->hw_prof.pcba_sn);
313 }
314 static DEVICE_ATTR(pcba_sn, S_IRUGO, asd_show_dev_pcba_sn, NULL);
315
316 static int asd_create_dev_attrs(struct asd_ha_struct *asd_ha)
317 {
318 int err;
319
320 err = device_create_file(&asd_ha->pcidev->dev, &dev_attr_revision);
321 if (err)
322 return err;
323
324 err = device_create_file(&asd_ha->pcidev->dev, &dev_attr_bios_build);
325 if (err)
326 goto err_rev;
327
328 err = device_create_file(&asd_ha->pcidev->dev, &dev_attr_pcba_sn);
329 if (err)
330 goto err_biosb;
331
332 return 0;
333
334 err_biosb:
335 device_remove_file(&asd_ha->pcidev->dev, &dev_attr_bios_build);
336 err_rev:
337 device_remove_file(&asd_ha->pcidev->dev, &dev_attr_revision);
338 return err;
339 }
340
341 static void asd_remove_dev_attrs(struct asd_ha_struct *asd_ha)
342 {
343 device_remove_file(&asd_ha->pcidev->dev, &dev_attr_revision);
344 device_remove_file(&asd_ha->pcidev->dev, &dev_attr_bios_build);
345 device_remove_file(&asd_ha->pcidev->dev, &dev_attr_pcba_sn);
346 }
347
348 /* The first entry, 0, is used for dynamic ids, the rest for devices
349 * we know about.
350 */
351 static struct asd_pcidev_struct {
352 const char * name;
353 int (*setup)(struct asd_ha_struct *asd_ha);
354 } asd_pcidev_data[] = {
355 /* Id 0 is used for dynamic ids. */
356 { .name = "Adaptec AIC-94xx SAS/SATA Host Adapter",
357 .setup = asd_aic9410_setup
358 },
359 { .name = "Adaptec AIC-9410W SAS/SATA Host Adapter",
360 .setup = asd_aic9410_setup
361 },
362 { .name = "Adaptec AIC-9405W SAS/SATA Host Adapter",
363 .setup = asd_aic9405_setup
364 },
365 };
366
367 static inline int asd_create_ha_caches(struct asd_ha_struct *asd_ha)
368 {
369 asd_ha->scb_pool = dma_pool_create(ASD_DRIVER_NAME "_scb_pool",
370 &asd_ha->pcidev->dev,
371 sizeof(struct scb),
372 8, 0);
373 if (!asd_ha->scb_pool) {
374 asd_printk("couldn't create scb pool\n");
375 return -ENOMEM;
376 }
377
378 return 0;
379 }
380
381 /**
382 * asd_free_edbs -- free empty data buffers
383 * asd_ha: pointer to host adapter structure
384 */
385 static inline void asd_free_edbs(struct asd_ha_struct *asd_ha)
386 {
387 struct asd_seq_data *seq = &asd_ha->seq;
388 int i;
389
390 for (i = 0; i < seq->num_edbs; i++)
391 asd_free_coherent(asd_ha, seq->edb_arr[i]);
392 kfree(seq->edb_arr);
393 seq->edb_arr = NULL;
394 }
395
396 static inline void asd_free_escbs(struct asd_ha_struct *asd_ha)
397 {
398 struct asd_seq_data *seq = &asd_ha->seq;
399 int i;
400
401 for (i = 0; i < seq->num_escbs; i++) {
402 if (!list_empty(&seq->escb_arr[i]->list))
403 list_del_init(&seq->escb_arr[i]->list);
404
405 asd_ascb_free(seq->escb_arr[i]);
406 }
407 kfree(seq->escb_arr);
408 seq->escb_arr = NULL;
409 }
410
411 static inline void asd_destroy_ha_caches(struct asd_ha_struct *asd_ha)
412 {
413 int i;
414
415 if (asd_ha->hw_prof.ddb_ext)
416 asd_free_coherent(asd_ha, asd_ha->hw_prof.ddb_ext);
417 if (asd_ha->hw_prof.scb_ext)
418 asd_free_coherent(asd_ha, asd_ha->hw_prof.scb_ext);
419
420 if (asd_ha->hw_prof.ddb_bitmap)
421 kfree(asd_ha->hw_prof.ddb_bitmap);
422 asd_ha->hw_prof.ddb_bitmap = NULL;
423
424 for (i = 0; i < ASD_MAX_PHYS; i++) {
425 struct asd_phy *phy = &asd_ha->phys[i];
426
427 asd_free_coherent(asd_ha, phy->id_frm_tok);
428 }
429 if (asd_ha->seq.escb_arr)
430 asd_free_escbs(asd_ha);
431 if (asd_ha->seq.edb_arr)
432 asd_free_edbs(asd_ha);
433 if (asd_ha->hw_prof.ue.area) {
434 kfree(asd_ha->hw_prof.ue.area);
435 asd_ha->hw_prof.ue.area = NULL;
436 }
437 if (asd_ha->seq.tc_index_array) {
438 kfree(asd_ha->seq.tc_index_array);
439 kfree(asd_ha->seq.tc_index_bitmap);
440 asd_ha->seq.tc_index_array = NULL;
441 asd_ha->seq.tc_index_bitmap = NULL;
442 }
443 if (asd_ha->seq.actual_dl) {
444 asd_free_coherent(asd_ha, asd_ha->seq.actual_dl);
445 asd_ha->seq.actual_dl = NULL;
446 asd_ha->seq.dl = NULL;
447 }
448 if (asd_ha->seq.next_scb.vaddr) {
449 dma_pool_free(asd_ha->scb_pool, asd_ha->seq.next_scb.vaddr,
450 asd_ha->seq.next_scb.dma_handle);
451 asd_ha->seq.next_scb.vaddr = NULL;
452 }
453 dma_pool_destroy(asd_ha->scb_pool);
454 asd_ha->scb_pool = NULL;
455 }
456
457 struct kmem_cache *asd_dma_token_cache;
458 struct kmem_cache *asd_ascb_cache;
459
460 static int asd_create_global_caches(void)
461 {
462 if (!asd_dma_token_cache) {
463 asd_dma_token_cache
464 = kmem_cache_create(ASD_DRIVER_NAME "_dma_token",
465 sizeof(struct asd_dma_tok),
466 0,
467 SLAB_HWCACHE_ALIGN,
468 NULL);
469 if (!asd_dma_token_cache) {
470 asd_printk("couldn't create dma token cache\n");
471 return -ENOMEM;
472 }
473 }
474
475 if (!asd_ascb_cache) {
476 asd_ascb_cache = kmem_cache_create(ASD_DRIVER_NAME "_ascb",
477 sizeof(struct asd_ascb),
478 0,
479 SLAB_HWCACHE_ALIGN,
480 NULL);
481 if (!asd_ascb_cache) {
482 asd_printk("couldn't create ascb cache\n");
483 goto Err;
484 }
485 }
486
487 return 0;
488 Err:
489 kmem_cache_destroy(asd_dma_token_cache);
490 asd_dma_token_cache = NULL;
491 return -ENOMEM;
492 }
493
494 static void asd_destroy_global_caches(void)
495 {
496 if (asd_dma_token_cache)
497 kmem_cache_destroy(asd_dma_token_cache);
498 asd_dma_token_cache = NULL;
499
500 if (asd_ascb_cache)
501 kmem_cache_destroy(asd_ascb_cache);
502 asd_ascb_cache = NULL;
503 }
504
505 static int asd_register_sas_ha(struct asd_ha_struct *asd_ha)
506 {
507 int i;
508 struct asd_sas_phy **sas_phys =
509 kmalloc(ASD_MAX_PHYS * sizeof(struct asd_sas_phy), GFP_KERNEL);
510 struct asd_sas_port **sas_ports =
511 kmalloc(ASD_MAX_PHYS * sizeof(struct asd_sas_port), GFP_KERNEL);
512
513 if (!sas_phys || !sas_ports) {
514 kfree(sas_phys);
515 kfree(sas_ports);
516 return -ENOMEM;
517 }
518
519 asd_ha->sas_ha.sas_ha_name = (char *) asd_ha->name;
520 asd_ha->sas_ha.lldd_module = THIS_MODULE;
521 asd_ha->sas_ha.sas_addr = &asd_ha->hw_prof.sas_addr[0];
522
523 for (i = 0; i < ASD_MAX_PHYS; i++) {
524 sas_phys[i] = &asd_ha->phys[i].sas_phy;
525 sas_ports[i] = &asd_ha->ports[i];
526 }
527
528 asd_ha->sas_ha.sas_phy = sas_phys;
529 asd_ha->sas_ha.sas_port= sas_ports;
530 asd_ha->sas_ha.num_phys= ASD_MAX_PHYS;
531
532 asd_ha->sas_ha.lldd_queue_size = asd_ha->seq.can_queue;
533 asd_ha->sas_ha.lldd_max_execute_num = lldd_max_execute_num;
534
535 return sas_register_ha(&asd_ha->sas_ha);
536 }
537
538 static int asd_unregister_sas_ha(struct asd_ha_struct *asd_ha)
539 {
540 int err;
541
542 err = sas_unregister_ha(&asd_ha->sas_ha);
543
544 sas_remove_host(asd_ha->sas_ha.core.shost);
545 scsi_remove_host(asd_ha->sas_ha.core.shost);
546 scsi_host_put(asd_ha->sas_ha.core.shost);
547
548 kfree(asd_ha->sas_ha.sas_phy);
549 kfree(asd_ha->sas_ha.sas_port);
550
551 return err;
552 }
553
554 static int __devinit asd_pci_probe(struct pci_dev *dev,
555 const struct pci_device_id *id)
556 {
557 struct asd_pcidev_struct *asd_dev;
558 unsigned asd_id = (unsigned) id->driver_data;
559 struct asd_ha_struct *asd_ha;
560 struct Scsi_Host *shost;
561 int err;
562
563 if (asd_id >= ARRAY_SIZE(asd_pcidev_data)) {
564 asd_printk("wrong driver_data in PCI table\n");
565 return -ENODEV;
566 }
567
568 if ((err = pci_enable_device(dev))) {
569 asd_printk("couldn't enable device %s\n", pci_name(dev));
570 return err;
571 }
572
573 pci_set_master(dev);
574
575 err = -ENOMEM;
576
577 shost = scsi_host_alloc(&aic94xx_sht, sizeof(void *));
578 if (!shost)
579 goto Err;
580
581 asd_dev = &asd_pcidev_data[asd_id];
582
583 asd_ha = kzalloc(sizeof(*asd_ha), GFP_KERNEL);
584 if (!asd_ha) {
585 asd_printk("out of memory\n");
586 goto Err_put;
587 }
588 asd_ha->pcidev = dev;
589 asd_ha->sas_ha.dev = &asd_ha->pcidev->dev;
590 asd_ha->sas_ha.lldd_ha = asd_ha;
591
592 asd_ha->name = asd_dev->name;
593 asd_printk("found %s, device %s\n", asd_ha->name, pci_name(dev));
594
595 SHOST_TO_SAS_HA(shost) = &asd_ha->sas_ha;
596 asd_ha->sas_ha.core.shost = shost;
597 shost->transportt = aic94xx_transport_template;
598 shost->max_id = ~0;
599 shost->max_lun = ~0;
600 shost->max_cmd_len = 16;
601
602 err = scsi_add_host(shost, &dev->dev);
603 if (err)
604 goto Err_free;
605
606 err = asd_dev->setup(asd_ha);
607 if (err)
608 goto Err_remove;
609
610 err = -ENODEV;
611 if (!pci_set_dma_mask(dev, DMA_64BIT_MASK)
612 && !pci_set_consistent_dma_mask(dev, DMA_64BIT_MASK))
613 ;
614 else if (!pci_set_dma_mask(dev, DMA_32BIT_MASK)
615 && !pci_set_consistent_dma_mask(dev, DMA_32BIT_MASK))
616 ;
617 else {
618 asd_printk("no suitable DMA mask for %s\n", pci_name(dev));
619 goto Err_remove;
620 }
621
622 pci_set_drvdata(dev, asd_ha);
623
624 err = asd_map_ha(asd_ha);
625 if (err)
626 goto Err_remove;
627
628 err = asd_create_ha_caches(asd_ha);
629 if (err)
630 goto Err_unmap;
631
632 err = asd_init_hw(asd_ha);
633 if (err)
634 goto Err_free_cache;
635
636 asd_printk("device %s: SAS addr %llx, PCBA SN %s, %d phys, %d enabled "
637 "phys, flash %s, BIOS %s%d\n",
638 pci_name(dev), SAS_ADDR(asd_ha->hw_prof.sas_addr),
639 asd_ha->hw_prof.pcba_sn, asd_ha->hw_prof.max_phys,
640 asd_ha->hw_prof.num_phys,
641 asd_ha->hw_prof.flash.present ? "present" : "not present",
642 asd_ha->hw_prof.bios.present ? "build " : "not present",
643 asd_ha->hw_prof.bios.bld);
644
645 shost->can_queue = asd_ha->seq.can_queue;
646
647 if (use_msi)
648 pci_enable_msi(asd_ha->pcidev);
649
650 err = request_irq(asd_ha->pcidev->irq, asd_hw_isr, IRQF_SHARED,
651 ASD_DRIVER_NAME, asd_ha);
652 if (err) {
653 asd_printk("couldn't get irq %d for %s\n",
654 asd_ha->pcidev->irq, pci_name(asd_ha->pcidev));
655 goto Err_irq;
656 }
657 asd_enable_ints(asd_ha);
658
659 err = asd_init_post_escbs(asd_ha);
660 if (err) {
661 asd_printk("couldn't post escbs for %s\n",
662 pci_name(asd_ha->pcidev));
663 goto Err_escbs;
664 }
665 ASD_DPRINTK("escbs posted\n");
666
667 err = asd_create_dev_attrs(asd_ha);
668 if (err)
669 goto Err_dev_attrs;
670
671 err = asd_register_sas_ha(asd_ha);
672 if (err)
673 goto Err_reg_sas;
674
675 scsi_scan_host(shost);
676
677 return 0;
678
679 Err_reg_sas:
680 asd_remove_dev_attrs(asd_ha);
681 Err_dev_attrs:
682 Err_escbs:
683 asd_disable_ints(asd_ha);
684 free_irq(dev->irq, asd_ha);
685 Err_irq:
686 if (use_msi)
687 pci_disable_msi(dev);
688 asd_chip_hardrst(asd_ha);
689 Err_free_cache:
690 asd_destroy_ha_caches(asd_ha);
691 Err_unmap:
692 asd_unmap_ha(asd_ha);
693 Err_remove:
694 scsi_remove_host(shost);
695 Err_free:
696 kfree(asd_ha);
697 Err_put:
698 scsi_host_put(shost);
699 Err:
700 pci_disable_device(dev);
701 return err;
702 }
703
704 static void asd_free_queues(struct asd_ha_struct *asd_ha)
705 {
706 unsigned long flags;
707 LIST_HEAD(pending);
708 struct list_head *n, *pos;
709
710 spin_lock_irqsave(&asd_ha->seq.pend_q_lock, flags);
711 asd_ha->seq.pending = 0;
712 list_splice_init(&asd_ha->seq.pend_q, &pending);
713 spin_unlock_irqrestore(&asd_ha->seq.pend_q_lock, flags);
714
715 if (!list_empty(&pending))
716 ASD_DPRINTK("Uh-oh! Pending is not empty!\n");
717
718 list_for_each_safe(pos, n, &pending) {
719 struct asd_ascb *ascb = list_entry(pos, struct asd_ascb, list);
720 /*
721 * Delete unexpired ascb timers. This may happen if we issue
722 * a CONTROL PHY scb to an adapter and rmmod before the scb
723 * times out. Apparently we don't wait for the CONTROL PHY
724 * to complete, so it doesn't matter if we kill the timer.
725 */
726 del_timer_sync(&ascb->timer);
727 WARN_ON(ascb->scb->header.opcode != CONTROL_PHY);
728
729 list_del_init(pos);
730 ASD_DPRINTK("freeing from pending\n");
731 asd_ascb_free(ascb);
732 }
733 }
734
735 static void asd_turn_off_leds(struct asd_ha_struct *asd_ha)
736 {
737 u8 phy_mask = asd_ha->hw_prof.enabled_phys;
738 u8 i;
739
740 for_each_phy(phy_mask, phy_mask, i) {
741 asd_turn_led(asd_ha, i, 0);
742 asd_control_led(asd_ha, i, 0);
743 }
744 }
745
746 static void __devexit asd_pci_remove(struct pci_dev *dev)
747 {
748 struct asd_ha_struct *asd_ha = pci_get_drvdata(dev);
749
750 if (!asd_ha)
751 return;
752
753 asd_unregister_sas_ha(asd_ha);
754
755 asd_disable_ints(asd_ha);
756
757 asd_remove_dev_attrs(asd_ha);
758
759 /* XXX more here as needed */
760
761 free_irq(dev->irq, asd_ha);
762 if (use_msi)
763 pci_disable_msi(asd_ha->pcidev);
764 asd_turn_off_leds(asd_ha);
765 asd_chip_hardrst(asd_ha);
766 asd_free_queues(asd_ha);
767 asd_destroy_ha_caches(asd_ha);
768 asd_unmap_ha(asd_ha);
769 kfree(asd_ha);
770 pci_disable_device(dev);
771 return;
772 }
773
774 static void asd_scan_start(struct Scsi_Host *shost)
775 {
776 struct asd_ha_struct *asd_ha;
777 int err;
778
779 asd_ha = SHOST_TO_SAS_HA(shost)->lldd_ha;
780 err = asd_enable_phys(asd_ha, asd_ha->hw_prof.enabled_phys);
781 if (err)
782 asd_printk("Couldn't enable phys, err:%d\n", err);
783 }
784
785 static int asd_scan_finished(struct Scsi_Host *shost, unsigned long time)
786 {
787 /* give the phy enabling interrupt event time to come in (1s
788 * is empirically about all it takes) */
789 if (time < HZ)
790 return 0;
791 /* Wait for discovery to finish */
792 scsi_flush_work(shost);
793 return 1;
794 }
795
796 static ssize_t asd_version_show(struct device_driver *driver, char *buf)
797 {
798 return snprintf(buf, PAGE_SIZE, "%s\n", ASD_DRIVER_VERSION);
799 }
800 static DRIVER_ATTR(version, S_IRUGO, asd_version_show, NULL);
801
802 static int asd_create_driver_attrs(struct device_driver *driver)
803 {
804 return driver_create_file(driver, &driver_attr_version);
805 }
806
807 static void asd_remove_driver_attrs(struct device_driver *driver)
808 {
809 driver_remove_file(driver, &driver_attr_version);
810 }
811
812 static struct sas_domain_function_template aic94xx_transport_functions = {
813 .lldd_dev_found = asd_dev_found,
814 .lldd_dev_gone = asd_dev_gone,
815
816 .lldd_execute_task = asd_execute_task,
817
818 .lldd_abort_task = asd_abort_task,
819 .lldd_abort_task_set = asd_abort_task_set,
820 .lldd_clear_aca = asd_clear_aca,
821 .lldd_clear_task_set = asd_clear_task_set,
822 .lldd_I_T_nexus_reset = NULL,
823 .lldd_lu_reset = asd_lu_reset,
824 .lldd_query_task = asd_query_task,
825
826 .lldd_clear_nexus_port = asd_clear_nexus_port,
827 .lldd_clear_nexus_ha = asd_clear_nexus_ha,
828
829 .lldd_control_phy = asd_control_phy,
830 };
831
832 static const struct pci_device_id aic94xx_pci_table[] __devinitdata = {
833 {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x410),0, 0, 1},
834 {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x412),0, 0, 1},
835 {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x416),0, 0, 1},
836 {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x41E),0, 0, 1},
837 {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x41F),0, 0, 1},
838 {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x430),0, 0, 2},
839 {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x432),0, 0, 2},
840 {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x43E),0, 0, 2},
841 {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x43F),0, 0, 2},
842 {}
843 };
844
845 MODULE_DEVICE_TABLE(pci, aic94xx_pci_table);
846
847 static struct pci_driver aic94xx_pci_driver = {
848 .name = ASD_DRIVER_NAME,
849 .id_table = aic94xx_pci_table,
850 .probe = asd_pci_probe,
851 .remove = __devexit_p(asd_pci_remove),
852 };
853
854 static int __init aic94xx_init(void)
855 {
856 int err;
857
858
859 asd_printk("%s version %s loaded\n", ASD_DRIVER_DESCRIPTION,
860 ASD_DRIVER_VERSION);
861
862 err = asd_create_global_caches();
863 if (err)
864 return err;
865
866 aic94xx_transport_template =
867 sas_domain_attach_transport(&aic94xx_transport_functions);
868 if (!aic94xx_transport_template)
869 goto out_destroy_caches;
870
871 err = pci_register_driver(&aic94xx_pci_driver);
872 if (err)
873 goto out_release_transport;
874
875 err = asd_create_driver_attrs(&aic94xx_pci_driver.driver);
876 if (err)
877 goto out_unregister_pcidrv;
878
879 return err;
880
881 out_unregister_pcidrv:
882 pci_unregister_driver(&aic94xx_pci_driver);
883 out_release_transport:
884 sas_release_transport(aic94xx_transport_template);
885 out_destroy_caches:
886 asd_destroy_global_caches();
887
888 return err;
889 }
890
891 static void __exit aic94xx_exit(void)
892 {
893 asd_remove_driver_attrs(&aic94xx_pci_driver.driver);
894 pci_unregister_driver(&aic94xx_pci_driver);
895 sas_release_transport(aic94xx_transport_template);
896 asd_release_firmware();
897 asd_destroy_global_caches();
898 asd_printk("%s version %s unloaded\n", ASD_DRIVER_DESCRIPTION,
899 ASD_DRIVER_VERSION);
900 }
901
902 module_init(aic94xx_init);
903 module_exit(aic94xx_exit);
904
905 MODULE_AUTHOR("Luben Tuikov <luben_tuikov@adaptec.com>");
906 MODULE_DESCRIPTION(ASD_DRIVER_DESCRIPTION);
907 MODULE_LICENSE("GPL v2");
908 MODULE_VERSION(ASD_DRIVER_VERSION);
Linus' kernel tree