[SCSI] libsas: kill sas_slave_destroy
[linux-2.6.git] / drivers / scsi / aic94xx / aic94xx_init.c
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 #include <linux/firmware.h>
33 #include <linux/slab.h>
34
35 #include <scsi/scsi_host.h>
36
37 #include "aic94xx.h"
38 #include "aic94xx_reg.h"
39 #include "aic94xx_hwi.h"
40 #include "aic94xx_seq.h"
41 #include "aic94xx_sds.h"
42
43 /* The format is "version.release.patchlevel" */
44 #define ASD_DRIVER_VERSION "1.0.3"
45
46 static int use_msi = 0;
47 module_param_named(use_msi, use_msi, int, S_IRUGO);
48 MODULE_PARM_DESC(use_msi, "\n"
49         "\tEnable(1) or disable(0) using PCI MSI.\n"
50         "\tDefault: 0");
51
52 static int lldd_max_execute_num = 0;
53 module_param_named(collector, lldd_max_execute_num, int, S_IRUGO);
54 MODULE_PARM_DESC(collector, "\n"
55         "\tIf greater than one, tells the SAS Layer to run in Task Collector\n"
56         "\tMode.  If 1 or 0, tells the SAS Layer to run in Direct Mode.\n"
57         "\tThe aic94xx SAS LLDD supports both modes.\n"
58         "\tDefault: 0 (Direct Mode).\n");
59
60 static struct scsi_transport_template *aic94xx_transport_template;
61 static int asd_scan_finished(struct Scsi_Host *, unsigned long);
62 static void asd_scan_start(struct Scsi_Host *);
63
64 static struct scsi_host_template aic94xx_sht = {
65         .module                 = THIS_MODULE,
66         /* .name is initialized */
67         .name                   = "aic94xx",
68         .queuecommand           = sas_queuecommand,
69         .target_alloc           = sas_target_alloc,
70         .slave_configure        = sas_slave_configure,
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 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 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 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 #define FLASH_CMD_NONE      0x00
317 #define FLASH_CMD_UPDATE    0x01
318 #define FLASH_CMD_VERIFY    0x02
319
320 struct flash_command {
321      u8      command[8];
322      int     code;
323 };
324
325 static struct flash_command flash_command_table[] =
326 {
327      {"verify",      FLASH_CMD_VERIFY},
328      {"update",      FLASH_CMD_UPDATE},
329      {"",            FLASH_CMD_NONE}      /* Last entry should be NULL. */
330 };
331
332 struct error_bios {
333      char    *reason;
334      int     err_code;
335 };
336
337 static struct error_bios flash_error_table[] =
338 {
339      {"Failed to open bios image file",      FAIL_OPEN_BIOS_FILE},
340      {"PCI ID mismatch",                     FAIL_CHECK_PCI_ID},
341      {"Checksum mismatch",                   FAIL_CHECK_SUM},
342      {"Unknown Error",                       FAIL_UNKNOWN},
343      {"Failed to verify.",                   FAIL_VERIFY},
344      {"Failed to reset flash chip.",         FAIL_RESET_FLASH},
345      {"Failed to find flash chip type.",     FAIL_FIND_FLASH_ID},
346      {"Failed to erash flash chip.",         FAIL_ERASE_FLASH},
347      {"Failed to program flash chip.",       FAIL_WRITE_FLASH},
348      {"Flash in progress",                   FLASH_IN_PROGRESS},
349      {"Image file size Error",               FAIL_FILE_SIZE},
350      {"Input parameter error",               FAIL_PARAMETERS},
351      {"Out of memory",                       FAIL_OUT_MEMORY},
352      {"OK", 0}  /* Last entry err_code = 0. */
353 };
354
355 static ssize_t asd_store_update_bios(struct device *dev,
356         struct device_attribute *attr,
357         const char *buf, size_t count)
358 {
359         struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev);
360         char *cmd_ptr, *filename_ptr;
361         struct bios_file_header header, *hdr_ptr;
362         int res, i;
363         u32 csum = 0;
364         int flash_command = FLASH_CMD_NONE;
365         int err = 0;
366
367         cmd_ptr = kzalloc(count*2, GFP_KERNEL);
368
369         if (!cmd_ptr) {
370                 err = FAIL_OUT_MEMORY;
371                 goto out;
372         }
373
374         filename_ptr = cmd_ptr + count;
375         res = sscanf(buf, "%s %s", cmd_ptr, filename_ptr);
376         if (res != 2) {
377                 err = FAIL_PARAMETERS;
378                 goto out1;
379         }
380
381         for (i = 0; flash_command_table[i].code != FLASH_CMD_NONE; i++) {
382                 if (!memcmp(flash_command_table[i].command,
383                                  cmd_ptr, strlen(cmd_ptr))) {
384                         flash_command = flash_command_table[i].code;
385                         break;
386                 }
387         }
388         if (flash_command == FLASH_CMD_NONE) {
389                 err = FAIL_PARAMETERS;
390                 goto out1;
391         }
392
393         if (asd_ha->bios_status == FLASH_IN_PROGRESS) {
394                 err = FLASH_IN_PROGRESS;
395                 goto out1;
396         }
397         err = request_firmware(&asd_ha->bios_image,
398                                    filename_ptr,
399                                    &asd_ha->pcidev->dev);
400         if (err) {
401                 asd_printk("Failed to load bios image file %s, error %d\n",
402                            filename_ptr, err);
403                 err = FAIL_OPEN_BIOS_FILE;
404                 goto out1;
405         }
406
407         hdr_ptr = (struct bios_file_header *)asd_ha->bios_image->data;
408
409         if ((hdr_ptr->contrl_id.vendor != asd_ha->pcidev->vendor ||
410                 hdr_ptr->contrl_id.device != asd_ha->pcidev->device) &&
411                 (hdr_ptr->contrl_id.sub_vendor != asd_ha->pcidev->vendor ||
412                 hdr_ptr->contrl_id.sub_device != asd_ha->pcidev->device)) {
413
414                 ASD_DPRINTK("The PCI vendor or device id does not match\n");
415                 ASD_DPRINTK("vendor=%x dev=%x sub_vendor=%x sub_dev=%x"
416                 " pci vendor=%x pci dev=%x\n",
417                 hdr_ptr->contrl_id.vendor,
418                 hdr_ptr->contrl_id.device,
419                 hdr_ptr->contrl_id.sub_vendor,
420                 hdr_ptr->contrl_id.sub_device,
421                 asd_ha->pcidev->vendor,
422                 asd_ha->pcidev->device);
423                 err = FAIL_CHECK_PCI_ID;
424                 goto out2;
425         }
426
427         if (hdr_ptr->filelen != asd_ha->bios_image->size) {
428                 err = FAIL_FILE_SIZE;
429                 goto out2;
430         }
431
432         /* calculate checksum */
433         for (i = 0; i < hdr_ptr->filelen; i++)
434                 csum += asd_ha->bios_image->data[i];
435
436         if ((csum & 0x0000ffff) != hdr_ptr->checksum) {
437                 ASD_DPRINTK("BIOS file checksum mismatch\n");
438                 err = FAIL_CHECK_SUM;
439                 goto out2;
440         }
441         if (flash_command == FLASH_CMD_UPDATE) {
442                 asd_ha->bios_status = FLASH_IN_PROGRESS;
443                 err = asd_write_flash_seg(asd_ha,
444                         &asd_ha->bios_image->data[sizeof(*hdr_ptr)],
445                         0, hdr_ptr->filelen-sizeof(*hdr_ptr));
446                 if (!err)
447                         err = asd_verify_flash_seg(asd_ha,
448                                 &asd_ha->bios_image->data[sizeof(*hdr_ptr)],
449                                 0, hdr_ptr->filelen-sizeof(*hdr_ptr));
450         } else {
451                 asd_ha->bios_status = FLASH_IN_PROGRESS;
452                 err = asd_verify_flash_seg(asd_ha,
453                         &asd_ha->bios_image->data[sizeof(header)],
454                         0, hdr_ptr->filelen-sizeof(header));
455         }
456
457 out2:
458         release_firmware(asd_ha->bios_image);
459 out1:
460         kfree(cmd_ptr);
461 out:
462         asd_ha->bios_status = err;
463
464         if (!err)
465                 return count;
466         else
467                 return -err;
468 }
469
470 static ssize_t asd_show_update_bios(struct device *dev,
471                                     struct device_attribute *attr, char *buf)
472 {
473         int i;
474         struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev);
475
476         for (i = 0; flash_error_table[i].err_code != 0; i++) {
477                 if (flash_error_table[i].err_code == asd_ha->bios_status)
478                         break;
479         }
480         if (asd_ha->bios_status != FLASH_IN_PROGRESS)
481                 asd_ha->bios_status = FLASH_OK;
482
483         return snprintf(buf, PAGE_SIZE, "status=%x %s\n",
484                         flash_error_table[i].err_code,
485                         flash_error_table[i].reason);
486 }
487
488 static DEVICE_ATTR(update_bios, S_IRUGO|S_IWUSR,
489         asd_show_update_bios, asd_store_update_bios);
490
491 static int asd_create_dev_attrs(struct asd_ha_struct *asd_ha)
492 {
493         int err;
494
495         err = device_create_file(&asd_ha->pcidev->dev, &dev_attr_revision);
496         if (err)
497                 return err;
498
499         err = device_create_file(&asd_ha->pcidev->dev, &dev_attr_bios_build);
500         if (err)
501                 goto err_rev;
502
503         err = device_create_file(&asd_ha->pcidev->dev, &dev_attr_pcba_sn);
504         if (err)
505                 goto err_biosb;
506         err = device_create_file(&asd_ha->pcidev->dev, &dev_attr_update_bios);
507         if (err)
508                 goto err_update_bios;
509
510         return 0;
511
512 err_update_bios:
513         device_remove_file(&asd_ha->pcidev->dev, &dev_attr_pcba_sn);
514 err_biosb:
515         device_remove_file(&asd_ha->pcidev->dev, &dev_attr_bios_build);
516 err_rev:
517         device_remove_file(&asd_ha->pcidev->dev, &dev_attr_revision);
518         return err;
519 }
520
521 static void asd_remove_dev_attrs(struct asd_ha_struct *asd_ha)
522 {
523         device_remove_file(&asd_ha->pcidev->dev, &dev_attr_revision);
524         device_remove_file(&asd_ha->pcidev->dev, &dev_attr_bios_build);
525         device_remove_file(&asd_ha->pcidev->dev, &dev_attr_pcba_sn);
526         device_remove_file(&asd_ha->pcidev->dev, &dev_attr_update_bios);
527 }
528
529 /* The first entry, 0, is used for dynamic ids, the rest for devices
530  * we know about.
531  */
532 static const struct asd_pcidev_struct {
533         const char * name;
534         int (*setup)(struct asd_ha_struct *asd_ha);
535 } asd_pcidev_data[] __devinitconst = {
536         /* Id 0 is used for dynamic ids. */
537         { .name  = "Adaptec AIC-94xx SAS/SATA Host Adapter",
538           .setup = asd_aic9410_setup
539         },
540         { .name  = "Adaptec AIC-9410W SAS/SATA Host Adapter",
541           .setup = asd_aic9410_setup
542         },
543         { .name  = "Adaptec AIC-9405W SAS/SATA Host Adapter",
544           .setup = asd_aic9405_setup
545         },
546 };
547
548 static int asd_create_ha_caches(struct asd_ha_struct *asd_ha)
549 {
550         asd_ha->scb_pool = dma_pool_create(ASD_DRIVER_NAME "_scb_pool",
551                                            &asd_ha->pcidev->dev,
552                                            sizeof(struct scb),
553                                            8, 0);
554         if (!asd_ha->scb_pool) {
555                 asd_printk("couldn't create scb pool\n");
556                 return -ENOMEM;
557         }
558
559         return 0;
560 }
561
562 /**
563  * asd_free_edbs -- free empty data buffers
564  * asd_ha: pointer to host adapter structure
565  */
566 static void asd_free_edbs(struct asd_ha_struct *asd_ha)
567 {
568         struct asd_seq_data *seq = &asd_ha->seq;
569         int i;
570
571         for (i = 0; i < seq->num_edbs; i++)
572                 asd_free_coherent(asd_ha, seq->edb_arr[i]);
573         kfree(seq->edb_arr);
574         seq->edb_arr = NULL;
575 }
576
577 static void asd_free_escbs(struct asd_ha_struct *asd_ha)
578 {
579         struct asd_seq_data *seq = &asd_ha->seq;
580         int i;
581
582         for (i = 0; i < seq->num_escbs; i++) {
583                 if (!list_empty(&seq->escb_arr[i]->list))
584                         list_del_init(&seq->escb_arr[i]->list);
585
586                 asd_ascb_free(seq->escb_arr[i]);
587         }
588         kfree(seq->escb_arr);
589         seq->escb_arr = NULL;
590 }
591
592 static void asd_destroy_ha_caches(struct asd_ha_struct *asd_ha)
593 {
594         int i;
595
596         if (asd_ha->hw_prof.ddb_ext)
597                 asd_free_coherent(asd_ha, asd_ha->hw_prof.ddb_ext);
598         if (asd_ha->hw_prof.scb_ext)
599                 asd_free_coherent(asd_ha, asd_ha->hw_prof.scb_ext);
600
601         if (asd_ha->hw_prof.ddb_bitmap)
602                 kfree(asd_ha->hw_prof.ddb_bitmap);
603         asd_ha->hw_prof.ddb_bitmap = NULL;
604
605         for (i = 0; i < ASD_MAX_PHYS; i++) {
606                 struct asd_phy *phy = &asd_ha->phys[i];
607
608                 asd_free_coherent(asd_ha, phy->id_frm_tok);
609         }
610         if (asd_ha->seq.escb_arr)
611                 asd_free_escbs(asd_ha);
612         if (asd_ha->seq.edb_arr)
613                 asd_free_edbs(asd_ha);
614         if (asd_ha->hw_prof.ue.area) {
615                 kfree(asd_ha->hw_prof.ue.area);
616                 asd_ha->hw_prof.ue.area = NULL;
617         }
618         if (asd_ha->seq.tc_index_array) {
619                 kfree(asd_ha->seq.tc_index_array);
620                 kfree(asd_ha->seq.tc_index_bitmap);
621                 asd_ha->seq.tc_index_array = NULL;
622                 asd_ha->seq.tc_index_bitmap = NULL;
623         }
624         if (asd_ha->seq.actual_dl) {
625                         asd_free_coherent(asd_ha, asd_ha->seq.actual_dl);
626                         asd_ha->seq.actual_dl = NULL;
627                         asd_ha->seq.dl = NULL;
628         }
629         if (asd_ha->seq.next_scb.vaddr) {
630                 dma_pool_free(asd_ha->scb_pool, asd_ha->seq.next_scb.vaddr,
631                               asd_ha->seq.next_scb.dma_handle);
632                 asd_ha->seq.next_scb.vaddr = NULL;
633         }
634         dma_pool_destroy(asd_ha->scb_pool);
635         asd_ha->scb_pool = NULL;
636 }
637
638 struct kmem_cache *asd_dma_token_cache;
639 struct kmem_cache *asd_ascb_cache;
640
641 static int asd_create_global_caches(void)
642 {
643         if (!asd_dma_token_cache) {
644                 asd_dma_token_cache
645                         = kmem_cache_create(ASD_DRIVER_NAME "_dma_token",
646                                             sizeof(struct asd_dma_tok),
647                                             0,
648                                             SLAB_HWCACHE_ALIGN,
649                                             NULL);
650                 if (!asd_dma_token_cache) {
651                         asd_printk("couldn't create dma token cache\n");
652                         return -ENOMEM;
653                 }
654         }
655
656         if (!asd_ascb_cache) {
657                 asd_ascb_cache = kmem_cache_create(ASD_DRIVER_NAME "_ascb",
658                                                    sizeof(struct asd_ascb),
659                                                    0,
660                                                    SLAB_HWCACHE_ALIGN,
661                                                    NULL);
662                 if (!asd_ascb_cache) {
663                         asd_printk("couldn't create ascb cache\n");
664                         goto Err;
665                 }
666         }
667
668         return 0;
669 Err:
670         kmem_cache_destroy(asd_dma_token_cache);
671         asd_dma_token_cache = NULL;
672         return -ENOMEM;
673 }
674
675 static void asd_destroy_global_caches(void)
676 {
677         if (asd_dma_token_cache)
678                 kmem_cache_destroy(asd_dma_token_cache);
679         asd_dma_token_cache = NULL;
680
681         if (asd_ascb_cache)
682                 kmem_cache_destroy(asd_ascb_cache);
683         asd_ascb_cache = NULL;
684 }
685
686 static int asd_register_sas_ha(struct asd_ha_struct *asd_ha)
687 {
688         int i;
689         struct asd_sas_phy   **sas_phys =
690                 kcalloc(ASD_MAX_PHYS, sizeof(*sas_phys), GFP_KERNEL);
691         struct asd_sas_port  **sas_ports =
692                 kcalloc(ASD_MAX_PHYS, sizeof(*sas_ports), GFP_KERNEL);
693
694         if (!sas_phys || !sas_ports) {
695                 kfree(sas_phys);
696                 kfree(sas_ports);
697                 return -ENOMEM;
698         }
699
700         asd_ha->sas_ha.sas_ha_name = (char *) asd_ha->name;
701         asd_ha->sas_ha.lldd_module = THIS_MODULE;
702         asd_ha->sas_ha.sas_addr = &asd_ha->hw_prof.sas_addr[0];
703
704         for (i = 0; i < ASD_MAX_PHYS; i++) {
705                 sas_phys[i] = &asd_ha->phys[i].sas_phy;
706                 sas_ports[i] = &asd_ha->ports[i];
707         }
708
709         asd_ha->sas_ha.sas_phy = sas_phys;
710         asd_ha->sas_ha.sas_port= sas_ports;
711         asd_ha->sas_ha.num_phys= ASD_MAX_PHYS;
712
713         asd_ha->sas_ha.lldd_queue_size = asd_ha->seq.can_queue;
714         asd_ha->sas_ha.lldd_max_execute_num = lldd_max_execute_num;
715
716         return sas_register_ha(&asd_ha->sas_ha);
717 }
718
719 static int asd_unregister_sas_ha(struct asd_ha_struct *asd_ha)
720 {
721         int err;
722
723         err = sas_unregister_ha(&asd_ha->sas_ha);
724
725         sas_remove_host(asd_ha->sas_ha.core.shost);
726         scsi_remove_host(asd_ha->sas_ha.core.shost);
727         scsi_host_put(asd_ha->sas_ha.core.shost);
728
729         kfree(asd_ha->sas_ha.sas_phy);
730         kfree(asd_ha->sas_ha.sas_port);
731
732         return err;
733 }
734
735 static int __devinit asd_pci_probe(struct pci_dev *dev,
736                                    const struct pci_device_id *id)
737 {
738         const struct asd_pcidev_struct *asd_dev;
739         unsigned asd_id = (unsigned) id->driver_data;
740         struct asd_ha_struct *asd_ha;
741         struct Scsi_Host *shost;
742         int err;
743
744         if (asd_id >= ARRAY_SIZE(asd_pcidev_data)) {
745                 asd_printk("wrong driver_data in PCI table\n");
746                 return -ENODEV;
747         }
748
749         if ((err = pci_enable_device(dev))) {
750                 asd_printk("couldn't enable device %s\n", pci_name(dev));
751                 return err;
752         }
753
754         pci_set_master(dev);
755
756         err = -ENOMEM;
757
758         shost = scsi_host_alloc(&aic94xx_sht, sizeof(void *));
759         if (!shost)
760                 goto Err;
761
762         asd_dev = &asd_pcidev_data[asd_id];
763
764         asd_ha = kzalloc(sizeof(*asd_ha), GFP_KERNEL);
765         if (!asd_ha) {
766                 asd_printk("out of memory\n");
767                 goto Err_put;
768         }
769         asd_ha->pcidev = dev;
770         asd_ha->sas_ha.dev = &asd_ha->pcidev->dev;
771         asd_ha->sas_ha.lldd_ha = asd_ha;
772
773         asd_ha->bios_status = FLASH_OK;
774         asd_ha->name = asd_dev->name;
775         asd_printk("found %s, device %s\n", asd_ha->name, pci_name(dev));
776
777         SHOST_TO_SAS_HA(shost) = &asd_ha->sas_ha;
778         asd_ha->sas_ha.core.shost = shost;
779         shost->transportt = aic94xx_transport_template;
780         shost->max_id = ~0;
781         shost->max_lun = ~0;
782         shost->max_cmd_len = 16;
783
784         err = scsi_add_host(shost, &dev->dev);
785         if (err)
786                 goto Err_free;
787
788         err = asd_dev->setup(asd_ha);
789         if (err)
790                 goto Err_remove;
791
792         err = -ENODEV;
793         if (!pci_set_dma_mask(dev, DMA_BIT_MASK(64))
794             && !pci_set_consistent_dma_mask(dev, DMA_BIT_MASK(64)))
795                 ;
796         else if (!pci_set_dma_mask(dev, DMA_BIT_MASK(32))
797                  && !pci_set_consistent_dma_mask(dev, DMA_BIT_MASK(32)))
798                 ;
799         else {
800                 asd_printk("no suitable DMA mask for %s\n", pci_name(dev));
801                 goto Err_remove;
802         }
803
804         pci_set_drvdata(dev, asd_ha);
805
806         err = asd_map_ha(asd_ha);
807         if (err)
808                 goto Err_remove;
809
810         err = asd_create_ha_caches(asd_ha);
811         if (err)
812                 goto Err_unmap;
813
814         err = asd_init_hw(asd_ha);
815         if (err)
816                 goto Err_free_cache;
817
818         asd_printk("device %s: SAS addr %llx, PCBA SN %s, %d phys, %d enabled "
819                    "phys, flash %s, BIOS %s%d\n",
820                    pci_name(dev), SAS_ADDR(asd_ha->hw_prof.sas_addr),
821                    asd_ha->hw_prof.pcba_sn, asd_ha->hw_prof.max_phys,
822                    asd_ha->hw_prof.num_phys,
823                    asd_ha->hw_prof.flash.present ? "present" : "not present",
824                    asd_ha->hw_prof.bios.present ? "build " : "not present",
825                    asd_ha->hw_prof.bios.bld);
826
827         shost->can_queue = asd_ha->seq.can_queue;
828
829         if (use_msi)
830                 pci_enable_msi(asd_ha->pcidev);
831
832         err = request_irq(asd_ha->pcidev->irq, asd_hw_isr, IRQF_SHARED,
833                           ASD_DRIVER_NAME, asd_ha);
834         if (err) {
835                 asd_printk("couldn't get irq %d for %s\n",
836                            asd_ha->pcidev->irq, pci_name(asd_ha->pcidev));
837                 goto Err_irq;
838         }
839         asd_enable_ints(asd_ha);
840
841         err = asd_init_post_escbs(asd_ha);
842         if (err) {
843                 asd_printk("couldn't post escbs for %s\n",
844                            pci_name(asd_ha->pcidev));
845                 goto Err_escbs;
846         }
847         ASD_DPRINTK("escbs posted\n");
848
849         err = asd_create_dev_attrs(asd_ha);
850         if (err)
851                 goto Err_dev_attrs;
852
853         err = asd_register_sas_ha(asd_ha);
854         if (err)
855                 goto Err_reg_sas;
856
857         scsi_scan_host(shost);
858
859         return 0;
860
861 Err_reg_sas:
862         asd_remove_dev_attrs(asd_ha);
863 Err_dev_attrs:
864 Err_escbs:
865         asd_disable_ints(asd_ha);
866         free_irq(dev->irq, asd_ha);
867 Err_irq:
868         if (use_msi)
869                 pci_disable_msi(dev);
870         asd_chip_hardrst(asd_ha);
871 Err_free_cache:
872         asd_destroy_ha_caches(asd_ha);
873 Err_unmap:
874         asd_unmap_ha(asd_ha);
875 Err_remove:
876         scsi_remove_host(shost);
877 Err_free:
878         kfree(asd_ha);
879 Err_put:
880         scsi_host_put(shost);
881 Err:
882         pci_disable_device(dev);
883         return err;
884 }
885
886 static void asd_free_queues(struct asd_ha_struct *asd_ha)
887 {
888         unsigned long flags;
889         LIST_HEAD(pending);
890         struct list_head *n, *pos;
891
892         spin_lock_irqsave(&asd_ha->seq.pend_q_lock, flags);
893         asd_ha->seq.pending = 0;
894         list_splice_init(&asd_ha->seq.pend_q, &pending);
895         spin_unlock_irqrestore(&asd_ha->seq.pend_q_lock, flags);
896
897         if (!list_empty(&pending))
898                 ASD_DPRINTK("Uh-oh! Pending is not empty!\n");
899
900         list_for_each_safe(pos, n, &pending) {
901                 struct asd_ascb *ascb = list_entry(pos, struct asd_ascb, list);
902                 /*
903                  * Delete unexpired ascb timers.  This may happen if we issue
904                  * a CONTROL PHY scb to an adapter and rmmod before the scb
905                  * times out.  Apparently we don't wait for the CONTROL PHY
906                  * to complete, so it doesn't matter if we kill the timer.
907                  */
908                 del_timer_sync(&ascb->timer);
909                 WARN_ON(ascb->scb->header.opcode != CONTROL_PHY);
910
911                 list_del_init(pos);
912                 ASD_DPRINTK("freeing from pending\n");
913                 asd_ascb_free(ascb);
914         }
915 }
916
917 static void asd_turn_off_leds(struct asd_ha_struct *asd_ha)
918 {
919         u8 phy_mask = asd_ha->hw_prof.enabled_phys;
920         u8 i;
921
922         for_each_phy(phy_mask, phy_mask, i) {
923                 asd_turn_led(asd_ha, i, 0);
924                 asd_control_led(asd_ha, i, 0);
925         }
926 }
927
928 static void __devexit asd_pci_remove(struct pci_dev *dev)
929 {
930         struct asd_ha_struct *asd_ha = pci_get_drvdata(dev);
931
932         if (!asd_ha)
933                 return;
934
935         asd_unregister_sas_ha(asd_ha);
936
937         asd_disable_ints(asd_ha);
938
939         asd_remove_dev_attrs(asd_ha);
940
941         /* XXX more here as needed */
942
943         free_irq(dev->irq, asd_ha);
944         if (use_msi)
945                 pci_disable_msi(asd_ha->pcidev);
946         asd_turn_off_leds(asd_ha);
947         asd_chip_hardrst(asd_ha);
948         asd_free_queues(asd_ha);
949         asd_destroy_ha_caches(asd_ha);
950         asd_unmap_ha(asd_ha);
951         kfree(asd_ha);
952         pci_disable_device(dev);
953         return;
954 }
955
956 static void asd_scan_start(struct Scsi_Host *shost)
957 {
958         struct asd_ha_struct *asd_ha;
959         int err;
960
961         asd_ha = SHOST_TO_SAS_HA(shost)->lldd_ha;
962         err = asd_enable_phys(asd_ha, asd_ha->hw_prof.enabled_phys);
963         if (err)
964                 asd_printk("Couldn't enable phys, err:%d\n", err);
965 }
966
967 static int asd_scan_finished(struct Scsi_Host *shost, unsigned long time)
968 {
969         /* give the phy enabling interrupt event time to come in (1s
970          * is empirically about all it takes) */
971         if (time < HZ)
972                 return 0;
973         /* Wait for discovery to finish */
974         scsi_flush_work(shost);
975         return 1;
976 }
977
978 static ssize_t asd_version_show(struct device_driver *driver, char *buf)
979 {
980         return snprintf(buf, PAGE_SIZE, "%s\n", ASD_DRIVER_VERSION);
981 }
982 static DRIVER_ATTR(version, S_IRUGO, asd_version_show, NULL);
983
984 static int asd_create_driver_attrs(struct device_driver *driver)
985 {
986         return driver_create_file(driver, &driver_attr_version);
987 }
988
989 static void asd_remove_driver_attrs(struct device_driver *driver)
990 {
991         driver_remove_file(driver, &driver_attr_version);
992 }
993
994 static struct sas_domain_function_template aic94xx_transport_functions = {
995         .lldd_dev_found         = asd_dev_found,
996         .lldd_dev_gone          = asd_dev_gone,
997
998         .lldd_execute_task      = asd_execute_task,
999
1000         .lldd_abort_task        = asd_abort_task,
1001         .lldd_abort_task_set    = asd_abort_task_set,
1002         .lldd_clear_aca         = asd_clear_aca,
1003         .lldd_clear_task_set    = asd_clear_task_set,
1004         .lldd_I_T_nexus_reset   = asd_I_T_nexus_reset,
1005         .lldd_lu_reset          = asd_lu_reset,
1006         .lldd_query_task        = asd_query_task,
1007
1008         .lldd_clear_nexus_port  = asd_clear_nexus_port,
1009         .lldd_clear_nexus_ha    = asd_clear_nexus_ha,
1010
1011         .lldd_control_phy       = asd_control_phy,
1012 };
1013
1014 static const struct pci_device_id aic94xx_pci_table[] __devinitdata = {
1015         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x410),0, 0, 1},
1016         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x412),0, 0, 1},
1017         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x416),0, 0, 1},
1018         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x41E),0, 0, 1},
1019         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x41F),0, 0, 1},
1020         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x430),0, 0, 2},
1021         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x432),0, 0, 2},
1022         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x43E),0, 0, 2},
1023         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x43F),0, 0, 2},
1024         {}
1025 };
1026
1027 MODULE_DEVICE_TABLE(pci, aic94xx_pci_table);
1028
1029 static struct pci_driver aic94xx_pci_driver = {
1030         .name           = ASD_DRIVER_NAME,
1031         .id_table       = aic94xx_pci_table,
1032         .probe          = asd_pci_probe,
1033         .remove         = __devexit_p(asd_pci_remove),
1034 };
1035
1036 static int __init aic94xx_init(void)
1037 {
1038         int err;
1039
1040
1041         asd_printk("%s version %s loaded\n", ASD_DRIVER_DESCRIPTION,
1042                    ASD_DRIVER_VERSION);
1043
1044         err = asd_create_global_caches();
1045         if (err)
1046                 return err;
1047
1048         aic94xx_transport_template =
1049                 sas_domain_attach_transport(&aic94xx_transport_functions);
1050         if (!aic94xx_transport_template)
1051                 goto out_destroy_caches;
1052
1053         err = pci_register_driver(&aic94xx_pci_driver);
1054         if (err)
1055                 goto out_release_transport;
1056
1057         err = asd_create_driver_attrs(&aic94xx_pci_driver.driver);
1058         if (err)
1059                 goto out_unregister_pcidrv;
1060
1061         return err;
1062
1063  out_unregister_pcidrv:
1064         pci_unregister_driver(&aic94xx_pci_driver);
1065  out_release_transport:
1066         sas_release_transport(aic94xx_transport_template);
1067  out_destroy_caches:
1068         asd_destroy_global_caches();
1069
1070         return err;
1071 }
1072
1073 static void __exit aic94xx_exit(void)
1074 {
1075         asd_remove_driver_attrs(&aic94xx_pci_driver.driver);
1076         pci_unregister_driver(&aic94xx_pci_driver);
1077         sas_release_transport(aic94xx_transport_template);
1078         asd_release_firmware();
1079         asd_destroy_global_caches();
1080         asd_printk("%s version %s unloaded\n", ASD_DRIVER_DESCRIPTION,
1081                    ASD_DRIVER_VERSION);
1082 }
1083
1084 module_init(aic94xx_init);
1085 module_exit(aic94xx_exit);
1086
1087 MODULE_AUTHOR("Luben Tuikov <luben_tuikov@adaptec.com>");
1088 MODULE_DESCRIPTION(ASD_DRIVER_DESCRIPTION);
1089 MODULE_LICENSE("GPL v2");
1090 MODULE_VERSION(ASD_DRIVER_VERSION);