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aic94xx_init.c
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1 /*
2  * Aic94xx SAS/SATA driver initialization.
3  *
4  * Copyright (C) 2005 Adaptec, Inc. All rights reserved.
5  * Copyright (C) 2005 Luben Tuikov <[email protected]>
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  .target_destroy = sas_target_destroy,
85  .ioctl = sas_ioctl,
86 };
87 
88 static int __devinit asd_map_memio(struct asd_ha_struct *asd_ha)
89 {
90  int err, i;
91  struct asd_ha_addrspace *io_handle;
92 
93  asd_ha->iospace = 0;
94  for (i = 0; i < 3; i += 2) {
95  io_handle = &asd_ha->io_handle[i==0?0:1];
96  io_handle->start = pci_resource_start(asd_ha->pcidev, i);
97  io_handle->len = pci_resource_len(asd_ha->pcidev, i);
98  io_handle->flags = pci_resource_flags(asd_ha->pcidev, i);
99  err = -ENODEV;
100  if (!io_handle->start || !io_handle->len) {
101  asd_printk("MBAR%d start or length for %s is 0.\n",
102  i==0?0:1, pci_name(asd_ha->pcidev));
103  goto Err;
104  }
105  err = pci_request_region(asd_ha->pcidev, i, ASD_DRIVER_NAME);
106  if (err) {
107  asd_printk("couldn't reserve memory region for %s\n",
108  pci_name(asd_ha->pcidev));
109  goto Err;
110  }
111  if (io_handle->flags & IORESOURCE_CACHEABLE)
112  io_handle->addr = ioremap(io_handle->start,
113  io_handle->len);
114  else
115  io_handle->addr = ioremap_nocache(io_handle->start,
116  io_handle->len);
117  if (!io_handle->addr) {
118  asd_printk("couldn't map MBAR%d of %s\n", i==0?0:1,
119  pci_name(asd_ha->pcidev));
120  goto Err_unreq;
121  }
122  }
123 
124  return 0;
125 Err_unreq:
126  pci_release_region(asd_ha->pcidev, i);
127 Err:
128  if (i > 0) {
129  io_handle = &asd_ha->io_handle[0];
130  iounmap(io_handle->addr);
131  pci_release_region(asd_ha->pcidev, 0);
132  }
133  return err;
134 }
135 
136 static void asd_unmap_memio(struct asd_ha_struct *asd_ha)
137 {
138  struct asd_ha_addrspace *io_handle;
139 
140  io_handle = &asd_ha->io_handle[1];
141  iounmap(io_handle->addr);
142  pci_release_region(asd_ha->pcidev, 2);
143 
144  io_handle = &asd_ha->io_handle[0];
145  iounmap(io_handle->addr);
146  pci_release_region(asd_ha->pcidev, 0);
147 }
148 
149 static int __devinit asd_map_ioport(struct asd_ha_struct *asd_ha)
150 {
151  int i = PCI_IOBAR_OFFSET, err;
152  struct asd_ha_addrspace *io_handle = &asd_ha->io_handle[0];
153 
154  asd_ha->iospace = 1;
155  io_handle->start = pci_resource_start(asd_ha->pcidev, i);
156  io_handle->len = pci_resource_len(asd_ha->pcidev, i);
157  io_handle->flags = pci_resource_flags(asd_ha->pcidev, i);
158  io_handle->addr = (void __iomem *) io_handle->start;
159  if (!io_handle->start || !io_handle->len) {
160  asd_printk("couldn't get IO ports for %s\n",
161  pci_name(asd_ha->pcidev));
162  return -ENODEV;
163  }
164  err = pci_request_region(asd_ha->pcidev, i, ASD_DRIVER_NAME);
165  if (err) {
166  asd_printk("couldn't reserve io space for %s\n",
167  pci_name(asd_ha->pcidev));
168  }
169 
170  return err;
171 }
172 
173 static void asd_unmap_ioport(struct asd_ha_struct *asd_ha)
174 {
176 }
177 
178 static int __devinit asd_map_ha(struct asd_ha_struct *asd_ha)
179 {
180  int err;
181  u16 cmd_reg;
182 
183  err = pci_read_config_word(asd_ha->pcidev, PCI_COMMAND, &cmd_reg);
184  if (err) {
185  asd_printk("couldn't read command register of %s\n",
186  pci_name(asd_ha->pcidev));
187  goto Err;
188  }
189 
190  err = -ENODEV;
191  if (cmd_reg & PCI_COMMAND_MEMORY) {
192  if ((err = asd_map_memio(asd_ha)))
193  goto Err;
194  } else if (cmd_reg & PCI_COMMAND_IO) {
195  if ((err = asd_map_ioport(asd_ha)))
196  goto Err;
197  asd_printk("%s ioport mapped -- upgrade your hardware\n",
198  pci_name(asd_ha->pcidev));
199  } else {
200  asd_printk("no proper device access to %s\n",
201  pci_name(asd_ha->pcidev));
202  goto Err;
203  }
204 
205  return 0;
206 Err:
207  return err;
208 }
209 
210 static void asd_unmap_ha(struct asd_ha_struct *asd_ha)
211 {
212  if (asd_ha->iospace)
213  asd_unmap_ioport(asd_ha);
214  else
215  asd_unmap_memio(asd_ha);
216 }
217 
218 static const char *asd_dev_rev[30] = {
219  [0] = "A0",
220  [1] = "A1",
221  [8] = "B0",
222 };
223 
224 static int __devinit asd_common_setup(struct asd_ha_struct *asd_ha)
225 {
226  int err, i;
227 
228  asd_ha->revision_id = asd_ha->pcidev->revision;
229 
230  err = -ENODEV;
231  if (asd_ha->revision_id < AIC9410_DEV_REV_B0) {
232  asd_printk("%s is revision %s (%X), which is not supported\n",
233  pci_name(asd_ha->pcidev),
234  asd_dev_rev[asd_ha->revision_id],
235  asd_ha->revision_id);
236  goto Err;
237  }
238  /* Provide some sane default values. */
239  asd_ha->hw_prof.max_scbs = 512;
240  asd_ha->hw_prof.max_ddbs = ASD_MAX_DDBS;
241  asd_ha->hw_prof.num_phys = ASD_MAX_PHYS;
242  /* All phys are enabled, by default. */
243  asd_ha->hw_prof.enabled_phys = 0xFF;
244  for (i = 0; i < ASD_MAX_PHYS; i++) {
245  asd_ha->hw_prof.phy_desc[i].max_sas_lrate =
247  asd_ha->hw_prof.phy_desc[i].min_sas_lrate =
249  asd_ha->hw_prof.phy_desc[i].max_sata_lrate =
251  asd_ha->hw_prof.phy_desc[i].min_sata_lrate =
253  }
254 
255  return 0;
256 Err:
257  return err;
258 }
259 
260 static int __devinit asd_aic9410_setup(struct asd_ha_struct *asd_ha)
261 {
262  int err = asd_common_setup(asd_ha);
263 
264  if (err)
265  return err;
266 
267  asd_ha->hw_prof.addr_range = 8;
268  asd_ha->hw_prof.port_name_base = 0;
269  asd_ha->hw_prof.dev_name_base = 8;
270  asd_ha->hw_prof.sata_name_base = 16;
271 
272  return 0;
273 }
274 
275 static int __devinit asd_aic9405_setup(struct asd_ha_struct *asd_ha)
276 {
277  int err = asd_common_setup(asd_ha);
278 
279  if (err)
280  return err;
281 
282  asd_ha->hw_prof.addr_range = 4;
283  asd_ha->hw_prof.port_name_base = 0;
284  asd_ha->hw_prof.dev_name_base = 4;
285  asd_ha->hw_prof.sata_name_base = 8;
286 
287  return 0;
288 }
289 
290 static ssize_t asd_show_dev_rev(struct device *dev,
291  struct device_attribute *attr, char *buf)
292 {
293  struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev);
294  return snprintf(buf, PAGE_SIZE, "%s\n",
295  asd_dev_rev[asd_ha->revision_id]);
296 }
297 static DEVICE_ATTR(revision, S_IRUGO, asd_show_dev_rev, NULL);
298 
299 static ssize_t asd_show_dev_bios_build(struct device *dev,
300  struct device_attribute *attr,char *buf)
301 {
302  struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev);
303  return snprintf(buf, PAGE_SIZE, "%d\n", asd_ha->hw_prof.bios.bld);
304 }
305 static DEVICE_ATTR(bios_build, S_IRUGO, asd_show_dev_bios_build, NULL);
306 
307 static ssize_t asd_show_dev_pcba_sn(struct device *dev,
308  struct device_attribute *attr, char *buf)
309 {
310  struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev);
311  return snprintf(buf, PAGE_SIZE, "%s\n", asd_ha->hw_prof.pcba_sn);
312 }
313 static DEVICE_ATTR(pcba_sn, S_IRUGO, asd_show_dev_pcba_sn, NULL);
314 
315 #define FLASH_CMD_NONE 0x00
316 #define FLASH_CMD_UPDATE 0x01
317 #define FLASH_CMD_VERIFY 0x02
318 
321  int code;
322 };
323 
324 static struct flash_command flash_command_table[] =
325 {
326  {"verify", FLASH_CMD_VERIFY},
327  {"update", FLASH_CMD_UPDATE},
328  {"", FLASH_CMD_NONE} /* Last entry should be NULL. */
329 };
330 
331 struct error_bios {
332  char *reason;
333  int err_code;
334 };
335 
336 static struct error_bios flash_error_table[] =
337 {
338  {"Failed to open bios image file", FAIL_OPEN_BIOS_FILE},
339  {"PCI ID mismatch", FAIL_CHECK_PCI_ID},
340  {"Checksum mismatch", FAIL_CHECK_SUM},
341  {"Unknown Error", FAIL_UNKNOWN},
342  {"Failed to verify.", FAIL_VERIFY},
343  {"Failed to reset flash chip.", FAIL_RESET_FLASH},
344  {"Failed to find flash chip type.", FAIL_FIND_FLASH_ID},
345  {"Failed to erash flash chip.", FAIL_ERASE_FLASH},
346  {"Failed to program flash chip.", FAIL_WRITE_FLASH},
347  {"Flash in progress", FLASH_IN_PROGRESS},
348  {"Image file size Error", FAIL_FILE_SIZE},
349  {"Input parameter error", FAIL_PARAMETERS},
350  {"Out of memory", FAIL_OUT_MEMORY},
351  {"OK", 0} /* Last entry err_code = 0. */
352 };
353 
354 static ssize_t asd_store_update_bios(struct device *dev,
355  struct device_attribute *attr,
356  const char *buf, size_t count)
357 {
358  struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev);
359  char *cmd_ptr, *filename_ptr;
360  struct bios_file_header header, *hdr_ptr;
361  int res, i;
362  u32 csum = 0;
364  int err = 0;
365 
366  cmd_ptr = kzalloc(count*2, GFP_KERNEL);
367 
368  if (!cmd_ptr) {
369  err = FAIL_OUT_MEMORY;
370  goto out;
371  }
372 
373  filename_ptr = cmd_ptr + count;
374  res = sscanf(buf, "%s %s", cmd_ptr, filename_ptr);
375  if (res != 2) {
376  err = FAIL_PARAMETERS;
377  goto out1;
378  }
379 
380  for (i = 0; flash_command_table[i].code != FLASH_CMD_NONE; i++) {
381  if (!memcmp(flash_command_table[i].command,
382  cmd_ptr, strlen(cmd_ptr))) {
383  flash_command = flash_command_table[i].code;
384  break;
385  }
386  }
387  if (flash_command == FLASH_CMD_NONE) {
388  err = FAIL_PARAMETERS;
389  goto out1;
390  }
391 
392  if (asd_ha->bios_status == FLASH_IN_PROGRESS) {
393  err = FLASH_IN_PROGRESS;
394  goto out1;
395  }
396  err = request_firmware(&asd_ha->bios_image,
397  filename_ptr,
398  &asd_ha->pcidev->dev);
399  if (err) {
400  asd_printk("Failed to load bios image file %s, error %d\n",
401  filename_ptr, err);
402  err = FAIL_OPEN_BIOS_FILE;
403  goto out1;
404  }
405 
406  hdr_ptr = (struct bios_file_header *)asd_ha->bios_image->data;
407 
408  if ((hdr_ptr->contrl_id.vendor != asd_ha->pcidev->vendor ||
409  hdr_ptr->contrl_id.device != asd_ha->pcidev->device) &&
410  (hdr_ptr->contrl_id.sub_vendor != asd_ha->pcidev->vendor ||
411  hdr_ptr->contrl_id.sub_device != asd_ha->pcidev->device)) {
412 
413  ASD_DPRINTK("The PCI vendor or device id does not match\n");
414  ASD_DPRINTK("vendor=%x dev=%x sub_vendor=%x sub_dev=%x"
415  " pci vendor=%x pci dev=%x\n",
416  hdr_ptr->contrl_id.vendor,
417  hdr_ptr->contrl_id.device,
418  hdr_ptr->contrl_id.sub_vendor,
419  hdr_ptr->contrl_id.sub_device,
420  asd_ha->pcidev->vendor,
421  asd_ha->pcidev->device);
422  err = FAIL_CHECK_PCI_ID;
423  goto out2;
424  }
425 
426  if (hdr_ptr->filelen != asd_ha->bios_image->size) {
427  err = FAIL_FILE_SIZE;
428  goto out2;
429  }
430 
431  /* calculate checksum */
432  for (i = 0; i < hdr_ptr->filelen; i++)
433  csum += asd_ha->bios_image->data[i];
434 
435  if ((csum & 0x0000ffff) != hdr_ptr->checksum) {
436  ASD_DPRINTK("BIOS file checksum mismatch\n");
437  err = FAIL_CHECK_SUM;
438  goto out2;
439  }
440  if (flash_command == FLASH_CMD_UPDATE) {
441  asd_ha->bios_status = FLASH_IN_PROGRESS;
442  err = asd_write_flash_seg(asd_ha,
443  &asd_ha->bios_image->data[sizeof(*hdr_ptr)],
444  0, hdr_ptr->filelen-sizeof(*hdr_ptr));
445  if (!err)
446  err = asd_verify_flash_seg(asd_ha,
447  &asd_ha->bios_image->data[sizeof(*hdr_ptr)],
448  0, hdr_ptr->filelen-sizeof(*hdr_ptr));
449  } else {
450  asd_ha->bios_status = FLASH_IN_PROGRESS;
451  err = asd_verify_flash_seg(asd_ha,
452  &asd_ha->bios_image->data[sizeof(header)],
453  0, hdr_ptr->filelen-sizeof(header));
454  }
455 
456 out2:
457  release_firmware(asd_ha->bios_image);
458 out1:
459  kfree(cmd_ptr);
460 out:
461  asd_ha->bios_status = err;
462 
463  if (!err)
464  return count;
465  else
466  return -err;
467 }
468 
469 static ssize_t asd_show_update_bios(struct device *dev,
470  struct device_attribute *attr, char *buf)
471 {
472  int i;
473  struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev);
474 
475  for (i = 0; flash_error_table[i].err_code != 0; i++) {
476  if (flash_error_table[i].err_code == asd_ha->bios_status)
477  break;
478  }
479  if (asd_ha->bios_status != FLASH_IN_PROGRESS)
480  asd_ha->bios_status = FLASH_OK;
481 
482  return snprintf(buf, PAGE_SIZE, "status=%x %s\n",
483  flash_error_table[i].err_code,
484  flash_error_table[i].reason);
485 }
486 
487 static DEVICE_ATTR(update_bios, S_IRUGO|S_IWUSR,
488  asd_show_update_bios, asd_store_update_bios);
489 
490 static int asd_create_dev_attrs(struct asd_ha_struct *asd_ha)
491 {
492  int err;
493 
494  err = device_create_file(&asd_ha->pcidev->dev, &dev_attr_revision);
495  if (err)
496  return err;
497 
498  err = device_create_file(&asd_ha->pcidev->dev, &dev_attr_bios_build);
499  if (err)
500  goto err_rev;
501 
502  err = device_create_file(&asd_ha->pcidev->dev, &dev_attr_pcba_sn);
503  if (err)
504  goto err_biosb;
505  err = device_create_file(&asd_ha->pcidev->dev, &dev_attr_update_bios);
506  if (err)
507  goto err_update_bios;
508 
509  return 0;
510 
511 err_update_bios:
512  device_remove_file(&asd_ha->pcidev->dev, &dev_attr_pcba_sn);
513 err_biosb:
514  device_remove_file(&asd_ha->pcidev->dev, &dev_attr_bios_build);
515 err_rev:
516  device_remove_file(&asd_ha->pcidev->dev, &dev_attr_revision);
517  return err;
518 }
519 
520 static void asd_remove_dev_attrs(struct asd_ha_struct *asd_ha)
521 {
522  device_remove_file(&asd_ha->pcidev->dev, &dev_attr_revision);
523  device_remove_file(&asd_ha->pcidev->dev, &dev_attr_bios_build);
524  device_remove_file(&asd_ha->pcidev->dev, &dev_attr_pcba_sn);
525  device_remove_file(&asd_ha->pcidev->dev, &dev_attr_update_bios);
526 }
527 
528 /* The first entry, 0, is used for dynamic ids, the rest for devices
529  * we know about.
530  */
531 static const struct asd_pcidev_struct {
532  const char * name;
533  int (*setup)(struct asd_ha_struct *asd_ha);
534 } asd_pcidev_data[] __devinitconst = {
535  /* Id 0 is used for dynamic ids. */
536  { .name = "Adaptec AIC-94xx SAS/SATA Host Adapter",
537  .setup = asd_aic9410_setup
538  },
539  { .name = "Adaptec AIC-9410W SAS/SATA Host Adapter",
540  .setup = asd_aic9410_setup
541  },
542  { .name = "Adaptec AIC-9405W SAS/SATA Host Adapter",
543  .setup = asd_aic9405_setup
544  },
545 };
546 
547 static int asd_create_ha_caches(struct asd_ha_struct *asd_ha)
548 {
549  asd_ha->scb_pool = dma_pool_create(ASD_DRIVER_NAME "_scb_pool",
550  &asd_ha->pcidev->dev,
551  sizeof(struct scb),
552  8, 0);
553  if (!asd_ha->scb_pool) {
554  asd_printk("couldn't create scb pool\n");
555  return -ENOMEM;
556  }
557 
558  return 0;
559 }
560 
565 static void asd_free_edbs(struct asd_ha_struct *asd_ha)
566 {
567  struct asd_seq_data *seq = &asd_ha->seq;
568  int i;
569 
570  for (i = 0; i < seq->num_edbs; i++)
571  asd_free_coherent(asd_ha, seq->edb_arr[i]);
572  kfree(seq->edb_arr);
573  seq->edb_arr = NULL;
574 }
575 
576 static void asd_free_escbs(struct asd_ha_struct *asd_ha)
577 {
578  struct asd_seq_data *seq = &asd_ha->seq;
579  int i;
580 
581  for (i = 0; i < seq->num_escbs; i++) {
582  if (!list_empty(&seq->escb_arr[i]->list))
583  list_del_init(&seq->escb_arr[i]->list);
584 
585  asd_ascb_free(seq->escb_arr[i]);
586  }
587  kfree(seq->escb_arr);
588  seq->escb_arr = NULL;
589 }
590 
591 static void asd_destroy_ha_caches(struct asd_ha_struct *asd_ha)
592 {
593  int i;
594 
595  if (asd_ha->hw_prof.ddb_ext)
596  asd_free_coherent(asd_ha, asd_ha->hw_prof.ddb_ext);
597  if (asd_ha->hw_prof.scb_ext)
598  asd_free_coherent(asd_ha, asd_ha->hw_prof.scb_ext);
599 
600  if (asd_ha->hw_prof.ddb_bitmap)
601  kfree(asd_ha->hw_prof.ddb_bitmap);
602  asd_ha->hw_prof.ddb_bitmap = NULL;
603 
604  for (i = 0; i < ASD_MAX_PHYS; i++) {
605  struct asd_phy *phy = &asd_ha->phys[i];
606 
607  asd_free_coherent(asd_ha, phy->id_frm_tok);
608  }
609  if (asd_ha->seq.escb_arr)
610  asd_free_escbs(asd_ha);
611  if (asd_ha->seq.edb_arr)
612  asd_free_edbs(asd_ha);
613  if (asd_ha->hw_prof.ue.area) {
614  kfree(asd_ha->hw_prof.ue.area);
615  asd_ha->hw_prof.ue.area = NULL;
616  }
617  if (asd_ha->seq.tc_index_array) {
618  kfree(asd_ha->seq.tc_index_array);
619  kfree(asd_ha->seq.tc_index_bitmap);
620  asd_ha->seq.tc_index_array = NULL;
621  asd_ha->seq.tc_index_bitmap = NULL;
622  }
623  if (asd_ha->seq.actual_dl) {
624  asd_free_coherent(asd_ha, asd_ha->seq.actual_dl);
625  asd_ha->seq.actual_dl = NULL;
626  asd_ha->seq.dl = NULL;
627  }
628  if (asd_ha->seq.next_scb.vaddr) {
629  dma_pool_free(asd_ha->scb_pool, asd_ha->seq.next_scb.vaddr,
630  asd_ha->seq.next_scb.dma_handle);
631  asd_ha->seq.next_scb.vaddr = NULL;
632  }
633  dma_pool_destroy(asd_ha->scb_pool);
634  asd_ha->scb_pool = NULL;
635 }
636 
639 
640 static int asd_create_global_caches(void)
641 {
642  if (!asd_dma_token_cache) {
643  asd_dma_token_cache
644  = kmem_cache_create(ASD_DRIVER_NAME "_dma_token",
645  sizeof(struct asd_dma_tok),
646  0,
648  NULL);
649  if (!asd_dma_token_cache) {
650  asd_printk("couldn't create dma token cache\n");
651  return -ENOMEM;
652  }
653  }
654 
655  if (!asd_ascb_cache) {
656  asd_ascb_cache = kmem_cache_create(ASD_DRIVER_NAME "_ascb",
657  sizeof(struct asd_ascb),
658  0,
660  NULL);
661  if (!asd_ascb_cache) {
662  asd_printk("couldn't create ascb cache\n");
663  goto Err;
664  }
665  }
666 
667  return 0;
668 Err:
669  kmem_cache_destroy(asd_dma_token_cache);
670  asd_dma_token_cache = NULL;
671  return -ENOMEM;
672 }
673 
674 static void asd_destroy_global_caches(void)
675 {
676  if (asd_dma_token_cache)
677  kmem_cache_destroy(asd_dma_token_cache);
678  asd_dma_token_cache = NULL;
679 
680  if (asd_ascb_cache)
681  kmem_cache_destroy(asd_ascb_cache);
682  asd_ascb_cache = NULL;
683 }
684 
685 static int asd_register_sas_ha(struct asd_ha_struct *asd_ha)
686 {
687  int i;
688  struct asd_sas_phy **sas_phys =
689  kcalloc(ASD_MAX_PHYS, sizeof(*sas_phys), GFP_KERNEL);
690  struct asd_sas_port **sas_ports =
691  kcalloc(ASD_MAX_PHYS, sizeof(*sas_ports), GFP_KERNEL);
692 
693  if (!sas_phys || !sas_ports) {
694  kfree(sas_phys);
695  kfree(sas_ports);
696  return -ENOMEM;
697  }
698 
699  asd_ha->sas_ha.sas_ha_name = (char *) asd_ha->name;
700  asd_ha->sas_ha.lldd_module = THIS_MODULE;
701  asd_ha->sas_ha.sas_addr = &asd_ha->hw_prof.sas_addr[0];
702 
703  for (i = 0; i < ASD_MAX_PHYS; i++) {
704  sas_phys[i] = &asd_ha->phys[i].sas_phy;
705  sas_ports[i] = &asd_ha->ports[i];
706  }
707 
708  asd_ha->sas_ha.sas_phy = sas_phys;
709  asd_ha->sas_ha.sas_port= sas_ports;
710  asd_ha->sas_ha.num_phys= ASD_MAX_PHYS;
711 
712  asd_ha->sas_ha.lldd_queue_size = asd_ha->seq.can_queue;
713  asd_ha->sas_ha.lldd_max_execute_num = lldd_max_execute_num;
714 
715  return sas_register_ha(&asd_ha->sas_ha);
716 }
717 
718 static int asd_unregister_sas_ha(struct asd_ha_struct *asd_ha)
719 {
720  int err;
721 
722  err = sas_unregister_ha(&asd_ha->sas_ha);
723 
724  sas_remove_host(asd_ha->sas_ha.core.shost);
725  scsi_remove_host(asd_ha->sas_ha.core.shost);
726  scsi_host_put(asd_ha->sas_ha.core.shost);
727 
728  kfree(asd_ha->sas_ha.sas_phy);
729  kfree(asd_ha->sas_ha.sas_port);
730 
731  return err;
732 }
733 
734 static int __devinit asd_pci_probe(struct pci_dev *dev,
735  const struct pci_device_id *id)
736 {
737  const struct asd_pcidev_struct *asd_dev;
738  unsigned asd_id = (unsigned) id->driver_data;
739  struct asd_ha_struct *asd_ha;
740  struct Scsi_Host *shost;
741  int err;
742 
743  if (asd_id >= ARRAY_SIZE(asd_pcidev_data)) {
744  asd_printk("wrong driver_data in PCI table\n");
745  return -ENODEV;
746  }
747 
748  if ((err = pci_enable_device(dev))) {
749  asd_printk("couldn't enable device %s\n", pci_name(dev));
750  return err;
751  }
752 
753  pci_set_master(dev);
754 
755  err = -ENOMEM;
756 
757  shost = scsi_host_alloc(&aic94xx_sht, sizeof(void *));
758  if (!shost)
759  goto Err;
760 
761  asd_dev = &asd_pcidev_data[asd_id];
762 
763  asd_ha = kzalloc(sizeof(*asd_ha), GFP_KERNEL);
764  if (!asd_ha) {
765  asd_printk("out of memory\n");
766  goto Err_put;
767  }
768  asd_ha->pcidev = dev;
769  asd_ha->sas_ha.dev = &asd_ha->pcidev->dev;
770  asd_ha->sas_ha.lldd_ha = asd_ha;
771 
772  asd_ha->bios_status = FLASH_OK;
773  asd_ha->name = asd_dev->name;
774  asd_printk("found %s, device %s\n", asd_ha->name, pci_name(dev));
775 
776  SHOST_TO_SAS_HA(shost) = &asd_ha->sas_ha;
777  asd_ha->sas_ha.core.shost = shost;
778  shost->transportt = aic94xx_transport_template;
779  shost->max_id = ~0;
780  shost->max_lun = ~0;
781  shost->max_cmd_len = 16;
782 
783  err = scsi_add_host(shost, &dev->dev);
784  if (err)
785  goto Err_free;
786 
787  err = asd_dev->setup(asd_ha);
788  if (err)
789  goto Err_remove;
790 
791  err = -ENODEV;
792  if (!pci_set_dma_mask(dev, DMA_BIT_MASK(64))
793  && !pci_set_consistent_dma_mask(dev, DMA_BIT_MASK(64)))
794  ;
795  else if (!pci_set_dma_mask(dev, DMA_BIT_MASK(32))
796  && !pci_set_consistent_dma_mask(dev, DMA_BIT_MASK(32)))
797  ;
798  else {
799  asd_printk("no suitable DMA mask for %s\n", pci_name(dev));
800  goto Err_remove;
801  }
802 
803  pci_set_drvdata(dev, asd_ha);
804 
805  err = asd_map_ha(asd_ha);
806  if (err)
807  goto Err_remove;
808 
809  err = asd_create_ha_caches(asd_ha);
810  if (err)
811  goto Err_unmap;
812 
813  err = asd_init_hw(asd_ha);
814  if (err)
815  goto Err_free_cache;
816 
817  asd_printk("device %s: SAS addr %llx, PCBA SN %s, %d phys, %d enabled "
818  "phys, flash %s, BIOS %s%d\n",
819  pci_name(dev), SAS_ADDR(asd_ha->hw_prof.sas_addr),
820  asd_ha->hw_prof.pcba_sn, asd_ha->hw_prof.max_phys,
821  asd_ha->hw_prof.num_phys,
822  asd_ha->hw_prof.flash.present ? "present" : "not present",
823  asd_ha->hw_prof.bios.present ? "build " : "not present",
824  asd_ha->hw_prof.bios.bld);
825 
826  shost->can_queue = asd_ha->seq.can_queue;
827 
828  if (use_msi)
829  pci_enable_msi(asd_ha->pcidev);
830 
831  err = request_irq(asd_ha->pcidev->irq, asd_hw_isr, IRQF_SHARED,
832  ASD_DRIVER_NAME, asd_ha);
833  if (err) {
834  asd_printk("couldn't get irq %d for %s\n",
835  asd_ha->pcidev->irq, pci_name(asd_ha->pcidev));
836  goto Err_irq;
837  }
838  asd_enable_ints(asd_ha);
839 
840  err = asd_init_post_escbs(asd_ha);
841  if (err) {
842  asd_printk("couldn't post escbs for %s\n",
843  pci_name(asd_ha->pcidev));
844  goto Err_escbs;
845  }
846  ASD_DPRINTK("escbs posted\n");
847 
848  err = asd_create_dev_attrs(asd_ha);
849  if (err)
850  goto Err_dev_attrs;
851 
852  err = asd_register_sas_ha(asd_ha);
853  if (err)
854  goto Err_reg_sas;
855 
857 
858  return 0;
859 
860 Err_reg_sas:
861  asd_remove_dev_attrs(asd_ha);
862 Err_dev_attrs:
863 Err_escbs:
864  asd_disable_ints(asd_ha);
865  free_irq(dev->irq, asd_ha);
866 Err_irq:
867  if (use_msi)
868  pci_disable_msi(dev);
869  asd_chip_hardrst(asd_ha);
870 Err_free_cache:
871  asd_destroy_ha_caches(asd_ha);
872 Err_unmap:
873  asd_unmap_ha(asd_ha);
874 Err_remove:
876 Err_free:
877  kfree(asd_ha);
878 Err_put:
880 Err:
881  pci_disable_device(dev);
882  return err;
883 }
884 
885 static void asd_free_queues(struct asd_ha_struct *asd_ha)
886 {
887  unsigned long flags;
888  LIST_HEAD(pending);
889  struct list_head *n, *pos;
890 
891  spin_lock_irqsave(&asd_ha->seq.pend_q_lock, flags);
892  asd_ha->seq.pending = 0;
893  list_splice_init(&asd_ha->seq.pend_q, &pending);
894  spin_unlock_irqrestore(&asd_ha->seq.pend_q_lock, flags);
895 
896  if (!list_empty(&pending))
897  ASD_DPRINTK("Uh-oh! Pending is not empty!\n");
898 
899  list_for_each_safe(pos, n, &pending) {
900  struct asd_ascb *ascb = list_entry(pos, struct asd_ascb, list);
901  /*
902  * Delete unexpired ascb timers. This may happen if we issue
903  * a CONTROL PHY scb to an adapter and rmmod before the scb
904  * times out. Apparently we don't wait for the CONTROL PHY
905  * to complete, so it doesn't matter if we kill the timer.
906  */
907  del_timer_sync(&ascb->timer);
908  WARN_ON(ascb->scb->header.opcode != CONTROL_PHY);
909 
910  list_del_init(pos);
911  ASD_DPRINTK("freeing from pending\n");
912  asd_ascb_free(ascb);
913  }
914 }
915 
916 static void asd_turn_off_leds(struct asd_ha_struct *asd_ha)
917 {
918  u8 phy_mask = asd_ha->hw_prof.enabled_phys;
919  u8 i;
920 
921  for_each_phy(phy_mask, phy_mask, i) {
922  asd_turn_led(asd_ha, i, 0);
923  asd_control_led(asd_ha, i, 0);
924  }
925 }
926 
927 static void __devexit asd_pci_remove(struct pci_dev *dev)
928 {
929  struct asd_ha_struct *asd_ha = pci_get_drvdata(dev);
930 
931  if (!asd_ha)
932  return;
933 
934  asd_unregister_sas_ha(asd_ha);
935 
936  asd_disable_ints(asd_ha);
937 
938  asd_remove_dev_attrs(asd_ha);
939 
940  /* XXX more here as needed */
941 
942  free_irq(dev->irq, asd_ha);
943  if (use_msi)
944  pci_disable_msi(asd_ha->pcidev);
945  asd_turn_off_leds(asd_ha);
946  asd_chip_hardrst(asd_ha);
947  asd_free_queues(asd_ha);
948  asd_destroy_ha_caches(asd_ha);
949  asd_unmap_ha(asd_ha);
950  kfree(asd_ha);
951  pci_disable_device(dev);
952  return;
953 }
954 
955 static void asd_scan_start(struct Scsi_Host *shost)
956 {
957  struct asd_ha_struct *asd_ha;
958  int err;
959 
960  asd_ha = SHOST_TO_SAS_HA(shost)->lldd_ha;
961  err = asd_enable_phys(asd_ha, asd_ha->hw_prof.enabled_phys);
962  if (err)
963  asd_printk("Couldn't enable phys, err:%d\n", err);
964 }
965 
966 static int asd_scan_finished(struct Scsi_Host *shost, unsigned long time)
967 {
968  /* give the phy enabling interrupt event time to come in (1s
969  * is empirically about all it takes) */
970  if (time < HZ)
971  return 0;
972  /* Wait for discovery to finish */
974  return 1;
975 }
976 
977 static ssize_t asd_version_show(struct device_driver *driver, char *buf)
978 {
979  return snprintf(buf, PAGE_SIZE, "%s\n", ASD_DRIVER_VERSION);
980 }
981 static DRIVER_ATTR(version, S_IRUGO, asd_version_show, NULL);
982 
983 static int asd_create_driver_attrs(struct device_driver *driver)
984 {
985  return driver_create_file(driver, &driver_attr_version);
986 }
987 
988 static void asd_remove_driver_attrs(struct device_driver *driver)
989 {
990  driver_remove_file(driver, &driver_attr_version);
991 }
992 
993 static struct sas_domain_function_template aic94xx_transport_functions = {
994  .lldd_dev_found = asd_dev_found,
995  .lldd_dev_gone = asd_dev_gone,
996 
997  .lldd_execute_task = asd_execute_task,
998 
999  .lldd_abort_task = asd_abort_task,
1000  .lldd_abort_task_set = asd_abort_task_set,
1001  .lldd_clear_aca = asd_clear_aca,
1002  .lldd_clear_task_set = asd_clear_task_set,
1003  .lldd_I_T_nexus_reset = asd_I_T_nexus_reset,
1004  .lldd_lu_reset = asd_lu_reset,
1005  .lldd_query_task = asd_query_task,
1006 
1007  .lldd_clear_nexus_port = asd_clear_nexus_port,
1008  .lldd_clear_nexus_ha = asd_clear_nexus_ha,
1009 
1010  .lldd_control_phy = asd_control_phy,
1011 
1012  .lldd_ata_set_dmamode = asd_set_dmamode,
1013 };
1014 
1015 static const struct pci_device_id aic94xx_pci_table[] __devinitconst = {
1016  {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x410),0, 0, 1},
1017  {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x412),0, 0, 1},
1018  {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x416),0, 0, 1},
1019  {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x41E),0, 0, 1},
1020  {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x41F),0, 0, 1},
1021  {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x430),0, 0, 2},
1022  {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x432),0, 0, 2},
1023  {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x43E),0, 0, 2},
1024  {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x43F),0, 0, 2},
1025  {}
1026 };
1027 
1028 MODULE_DEVICE_TABLE(pci, aic94xx_pci_table);
1029 
1030 static struct pci_driver aic94xx_pci_driver = {
1031  .name = ASD_DRIVER_NAME,
1032  .id_table = aic94xx_pci_table,
1033  .probe = asd_pci_probe,
1034  .remove = __devexit_p(asd_pci_remove),
1035 };
1036 
1037 static int __init aic94xx_init(void)
1038 {
1039  int err;
1040 
1041 
1042  asd_printk("%s version %s loaded\n", ASD_DRIVER_DESCRIPTION,
1044 
1045  err = asd_create_global_caches();
1046  if (err)
1047  return err;
1048 
1049  aic94xx_transport_template =
1050  sas_domain_attach_transport(&aic94xx_transport_functions);
1051  if (!aic94xx_transport_template)
1052  goto out_destroy_caches;
1053 
1054  err = pci_register_driver(&aic94xx_pci_driver);
1055  if (err)
1056  goto out_release_transport;
1057 
1058  err = asd_create_driver_attrs(&aic94xx_pci_driver.driver);
1059  if (err)
1060  goto out_unregister_pcidrv;
1061 
1062  return err;
1063 
1064  out_unregister_pcidrv:
1065  pci_unregister_driver(&aic94xx_pci_driver);
1066  out_release_transport:
1067  sas_release_transport(aic94xx_transport_template);
1068  out_destroy_caches:
1069  asd_destroy_global_caches();
1070 
1071  return err;
1072 }
1073 
1074 static void __exit aic94xx_exit(void)
1075 {
1076  asd_remove_driver_attrs(&aic94xx_pci_driver.driver);
1077  pci_unregister_driver(&aic94xx_pci_driver);
1078  sas_release_transport(aic94xx_transport_template);
1080  asd_destroy_global_caches();
1081  asd_printk("%s version %s unloaded\n", ASD_DRIVER_DESCRIPTION,
1083 }
1084 
1085 module_init(aic94xx_init);
1086 module_exit(aic94xx_exit);
1087 
1088 MODULE_AUTHOR("Luben Tuikov <[email protected]>");
1090 MODULE_LICENSE("GPL v2");