Version:  2.0.40 2.2.26 2.4.37 3.11 3.12 3.13 3.14 3.15 3.16 3.17 3.18 3.19 4.0 4.1 4.2 4.3 4.4 4.5 4.6 4.7 4.8

Linux/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 struct scsi_transport_template *aic94xx_transport_template;
 53 static int asd_scan_finished(struct Scsi_Host *, unsigned long);
 54 static void asd_scan_start(struct Scsi_Host *);
 55 
 56 static struct scsi_host_template aic94xx_sht = {
 57         .module                 = THIS_MODULE,
 58         /* .name is initialized */
 59         .name                   = "aic94xx",
 60         .queuecommand           = sas_queuecommand,
 61         .target_alloc           = sas_target_alloc,
 62         .slave_configure        = sas_slave_configure,
 63         .scan_finished          = asd_scan_finished,
 64         .scan_start             = asd_scan_start,
 65         .change_queue_depth     = sas_change_queue_depth,
 66         .bios_param             = sas_bios_param,
 67         .can_queue              = 1,
 68         .this_id                = -1,
 69         .sg_tablesize           = SG_ALL,
 70         .max_sectors            = SCSI_DEFAULT_MAX_SECTORS,
 71         .use_clustering         = ENABLE_CLUSTERING,
 72         .eh_device_reset_handler        = sas_eh_device_reset_handler,
 73         .eh_bus_reset_handler   = sas_eh_bus_reset_handler,
 74         .target_destroy         = sas_target_destroy,
 75         .ioctl                  = sas_ioctl,
 76         .track_queue_depth      = 1,
 77 };
 78 
 79 static int asd_map_memio(struct asd_ha_struct *asd_ha)
 80 {
 81         int err, i;
 82         struct asd_ha_addrspace *io_handle;
 83 
 84         asd_ha->iospace = 0;
 85         for (i = 0; i < 3; i += 2) {
 86                 io_handle = &asd_ha->io_handle[i==0?0:1];
 87                 io_handle->start = pci_resource_start(asd_ha->pcidev, i);
 88                 io_handle->len   = pci_resource_len(asd_ha->pcidev, i);
 89                 io_handle->flags = pci_resource_flags(asd_ha->pcidev, i);
 90                 err = -ENODEV;
 91                 if (!io_handle->start || !io_handle->len) {
 92                         asd_printk("MBAR%d start or length for %s is 0.\n",
 93                                    i==0?0:1, pci_name(asd_ha->pcidev));
 94                         goto Err;
 95                 }
 96                 err = pci_request_region(asd_ha->pcidev, i, ASD_DRIVER_NAME);
 97                 if (err) {
 98                         asd_printk("couldn't reserve memory region for %s\n",
 99                                    pci_name(asd_ha->pcidev));
100                         goto Err;
101                 }
102                 io_handle->addr = ioremap(io_handle->start, io_handle->len);
103                 if (!io_handle->addr) {
104                         asd_printk("couldn't map MBAR%d of %s\n", i==0?0:1,
105                                    pci_name(asd_ha->pcidev));
106                         err = -ENOMEM;
107                         goto Err_unreq;
108                 }
109         }
110 
111         return 0;
112 Err_unreq:
113         pci_release_region(asd_ha->pcidev, i);
114 Err:
115         if (i > 0) {
116                 io_handle = &asd_ha->io_handle[0];
117                 iounmap(io_handle->addr);
118                 pci_release_region(asd_ha->pcidev, 0);
119         }
120         return err;
121 }
122 
123 static void asd_unmap_memio(struct asd_ha_struct *asd_ha)
124 {
125         struct asd_ha_addrspace *io_handle;
126 
127         io_handle = &asd_ha->io_handle[1];
128         iounmap(io_handle->addr);
129         pci_release_region(asd_ha->pcidev, 2);
130 
131         io_handle = &asd_ha->io_handle[0];
132         iounmap(io_handle->addr);
133         pci_release_region(asd_ha->pcidev, 0);
134 }
135 
136 static int asd_map_ioport(struct asd_ha_struct *asd_ha)
137 {
138         int i = PCI_IOBAR_OFFSET, err;
139         struct asd_ha_addrspace *io_handle = &asd_ha->io_handle[0];
140 
141         asd_ha->iospace = 1;
142         io_handle->start = pci_resource_start(asd_ha->pcidev, i);
143         io_handle->len   = pci_resource_len(asd_ha->pcidev, i);
144         io_handle->flags = pci_resource_flags(asd_ha->pcidev, i);
145         io_handle->addr  = (void __iomem *) io_handle->start;
146         if (!io_handle->start || !io_handle->len) {
147                 asd_printk("couldn't get IO ports for %s\n",
148                            pci_name(asd_ha->pcidev));
149                 return -ENODEV;
150         }
151         err = pci_request_region(asd_ha->pcidev, i, ASD_DRIVER_NAME);
152         if (err) {
153                 asd_printk("couldn't reserve io space for %s\n",
154                            pci_name(asd_ha->pcidev));
155         }
156 
157         return err;
158 }
159 
160 static void asd_unmap_ioport(struct asd_ha_struct *asd_ha)
161 {
162         pci_release_region(asd_ha->pcidev, PCI_IOBAR_OFFSET);
163 }
164 
165 static int asd_map_ha(struct asd_ha_struct *asd_ha)
166 {
167         int err;
168         u16 cmd_reg;
169 
170         err = pci_read_config_word(asd_ha->pcidev, PCI_COMMAND, &cmd_reg);
171         if (err) {
172                 asd_printk("couldn't read command register of %s\n",
173                            pci_name(asd_ha->pcidev));
174                 goto Err;
175         }
176 
177         err = -ENODEV;
178         if (cmd_reg & PCI_COMMAND_MEMORY) {
179                 if ((err = asd_map_memio(asd_ha)))
180                         goto Err;
181         } else if (cmd_reg & PCI_COMMAND_IO) {
182                 if ((err = asd_map_ioport(asd_ha)))
183                         goto Err;
184                 asd_printk("%s ioport mapped -- upgrade your hardware\n",
185                            pci_name(asd_ha->pcidev));
186         } else {
187                 asd_printk("no proper device access to %s\n",
188                            pci_name(asd_ha->pcidev));
189                 goto Err;
190         }
191 
192         return 0;
193 Err:
194         return err;
195 }
196 
197 static void asd_unmap_ha(struct asd_ha_struct *asd_ha)
198 {
199         if (asd_ha->iospace)
200                 asd_unmap_ioport(asd_ha);
201         else
202                 asd_unmap_memio(asd_ha);
203 }
204 
205 static const char *asd_dev_rev[30] = {
206         [0] = "A0",
207         [1] = "A1",
208         [8] = "B0",
209 };
210 
211 static int asd_common_setup(struct asd_ha_struct *asd_ha)
212 {
213         int err, i;
214 
215         asd_ha->revision_id = asd_ha->pcidev->revision;
216 
217         err = -ENODEV;
218         if (asd_ha->revision_id < AIC9410_DEV_REV_B0) {
219                 asd_printk("%s is revision %s (%X), which is not supported\n",
220                            pci_name(asd_ha->pcidev),
221                            asd_dev_rev[asd_ha->revision_id],
222                            asd_ha->revision_id);
223                 goto Err;
224         }
225         /* Provide some sane default values. */
226         asd_ha->hw_prof.max_scbs = 512;
227         asd_ha->hw_prof.max_ddbs = ASD_MAX_DDBS;
228         asd_ha->hw_prof.num_phys = ASD_MAX_PHYS;
229         /* All phys are enabled, by default. */
230         asd_ha->hw_prof.enabled_phys = 0xFF;
231         for (i = 0; i < ASD_MAX_PHYS; i++) {
232                 asd_ha->hw_prof.phy_desc[i].max_sas_lrate =
233                         SAS_LINK_RATE_3_0_GBPS;
234                 asd_ha->hw_prof.phy_desc[i].min_sas_lrate =
235                         SAS_LINK_RATE_1_5_GBPS;
236                 asd_ha->hw_prof.phy_desc[i].max_sata_lrate =
237                         SAS_LINK_RATE_1_5_GBPS;
238                 asd_ha->hw_prof.phy_desc[i].min_sata_lrate =
239                         SAS_LINK_RATE_1_5_GBPS;
240         }
241 
242         return 0;
243 Err:
244         return err;
245 }
246 
247 static int asd_aic9410_setup(struct asd_ha_struct *asd_ha)
248 {
249         int err = asd_common_setup(asd_ha);
250 
251         if (err)
252                 return err;
253 
254         asd_ha->hw_prof.addr_range = 8;
255         asd_ha->hw_prof.port_name_base = 0;
256         asd_ha->hw_prof.dev_name_base = 8;
257         asd_ha->hw_prof.sata_name_base = 16;
258 
259         return 0;
260 }
261 
262 static int asd_aic9405_setup(struct asd_ha_struct *asd_ha)
263 {
264         int err = asd_common_setup(asd_ha);
265 
266         if (err)
267                 return err;
268 
269         asd_ha->hw_prof.addr_range = 4;
270         asd_ha->hw_prof.port_name_base = 0;
271         asd_ha->hw_prof.dev_name_base = 4;
272         asd_ha->hw_prof.sata_name_base = 8;
273 
274         return 0;
275 }
276 
277 static ssize_t asd_show_dev_rev(struct device *dev,
278                                 struct device_attribute *attr, char *buf)
279 {
280         struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev);
281         return snprintf(buf, PAGE_SIZE, "%s\n",
282                         asd_dev_rev[asd_ha->revision_id]);
283 }
284 static DEVICE_ATTR(revision, S_IRUGO, asd_show_dev_rev, NULL);
285 
286 static ssize_t asd_show_dev_bios_build(struct device *dev,
287                                        struct device_attribute *attr,char *buf)
288 {
289         struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev);
290         return snprintf(buf, PAGE_SIZE, "%d\n", asd_ha->hw_prof.bios.bld);
291 }
292 static DEVICE_ATTR(bios_build, S_IRUGO, asd_show_dev_bios_build, NULL);
293 
294 static ssize_t asd_show_dev_pcba_sn(struct device *dev,
295                                     struct device_attribute *attr, char *buf)
296 {
297         struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev);
298         return snprintf(buf, PAGE_SIZE, "%s\n", asd_ha->hw_prof.pcba_sn);
299 }
300 static DEVICE_ATTR(pcba_sn, S_IRUGO, asd_show_dev_pcba_sn, NULL);
301 
302 #define FLASH_CMD_NONE      0x00
303 #define FLASH_CMD_UPDATE    0x01
304 #define FLASH_CMD_VERIFY    0x02
305 
306 struct flash_command {
307      u8      command[8];
308      int     code;
309 };
310 
311 static struct flash_command flash_command_table[] =
312 {
313      {"verify",      FLASH_CMD_VERIFY},
314      {"update",      FLASH_CMD_UPDATE},
315      {"",            FLASH_CMD_NONE}      /* Last entry should be NULL. */
316 };
317 
318 struct error_bios {
319      char    *reason;
320      int     err_code;
321 };
322 
323 static struct error_bios flash_error_table[] =
324 {
325      {"Failed to open bios image file",      FAIL_OPEN_BIOS_FILE},
326      {"PCI ID mismatch",                     FAIL_CHECK_PCI_ID},
327      {"Checksum mismatch",                   FAIL_CHECK_SUM},
328      {"Unknown Error",                       FAIL_UNKNOWN},
329      {"Failed to verify.",                   FAIL_VERIFY},
330      {"Failed to reset flash chip.",         FAIL_RESET_FLASH},
331      {"Failed to find flash chip type.",     FAIL_FIND_FLASH_ID},
332      {"Failed to erash flash chip.",         FAIL_ERASE_FLASH},
333      {"Failed to program flash chip.",       FAIL_WRITE_FLASH},
334      {"Flash in progress",                   FLASH_IN_PROGRESS},
335      {"Image file size Error",               FAIL_FILE_SIZE},
336      {"Input parameter error",               FAIL_PARAMETERS},
337      {"Out of memory",                       FAIL_OUT_MEMORY},
338      {"OK", 0}  /* Last entry err_code = 0. */
339 };
340 
341 static ssize_t asd_store_update_bios(struct device *dev,
342         struct device_attribute *attr,
343         const char *buf, size_t count)
344 {
345         struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev);
346         char *cmd_ptr, *filename_ptr;
347         struct bios_file_header header, *hdr_ptr;
348         int res, i;
349         u32 csum = 0;
350         int flash_command = FLASH_CMD_NONE;
351         int err = 0;
352 
353         cmd_ptr = kzalloc(count*2, GFP_KERNEL);
354 
355         if (!cmd_ptr) {
356                 err = FAIL_OUT_MEMORY;
357                 goto out;
358         }
359 
360         filename_ptr = cmd_ptr + count;
361         res = sscanf(buf, "%s %s", cmd_ptr, filename_ptr);
362         if (res != 2) {
363                 err = FAIL_PARAMETERS;
364                 goto out1;
365         }
366 
367         for (i = 0; flash_command_table[i].code != FLASH_CMD_NONE; i++) {
368                 if (!memcmp(flash_command_table[i].command,
369                                  cmd_ptr, strlen(cmd_ptr))) {
370                         flash_command = flash_command_table[i].code;
371                         break;
372                 }
373         }
374         if (flash_command == FLASH_CMD_NONE) {
375                 err = FAIL_PARAMETERS;
376                 goto out1;
377         }
378 
379         if (asd_ha->bios_status == FLASH_IN_PROGRESS) {
380                 err = FLASH_IN_PROGRESS;
381                 goto out1;
382         }
383         err = request_firmware(&asd_ha->bios_image,
384                                    filename_ptr,
385                                    &asd_ha->pcidev->dev);
386         if (err) {
387                 asd_printk("Failed to load bios image file %s, error %d\n",
388                            filename_ptr, err);
389                 err = FAIL_OPEN_BIOS_FILE;
390                 goto out1;
391         }
392 
393         hdr_ptr = (struct bios_file_header *)asd_ha->bios_image->data;
394 
395         if ((hdr_ptr->contrl_id.vendor != asd_ha->pcidev->vendor ||
396                 hdr_ptr->contrl_id.device != asd_ha->pcidev->device) &&
397                 (hdr_ptr->contrl_id.sub_vendor != asd_ha->pcidev->vendor ||
398                 hdr_ptr->contrl_id.sub_device != asd_ha->pcidev->device)) {
399 
400                 ASD_DPRINTK("The PCI vendor or device id does not match\n");
401                 ASD_DPRINTK("vendor=%x dev=%x sub_vendor=%x sub_dev=%x"
402                 " pci vendor=%x pci dev=%x\n",
403                 hdr_ptr->contrl_id.vendor,
404                 hdr_ptr->contrl_id.device,
405                 hdr_ptr->contrl_id.sub_vendor,
406                 hdr_ptr->contrl_id.sub_device,
407                 asd_ha->pcidev->vendor,
408                 asd_ha->pcidev->device);
409                 err = FAIL_CHECK_PCI_ID;
410                 goto out2;
411         }
412 
413         if (hdr_ptr->filelen != asd_ha->bios_image->size) {
414                 err = FAIL_FILE_SIZE;
415                 goto out2;
416         }
417 
418         /* calculate checksum */
419         for (i = 0; i < hdr_ptr->filelen; i++)
420                 csum += asd_ha->bios_image->data[i];
421 
422         if ((csum & 0x0000ffff) != hdr_ptr->checksum) {
423                 ASD_DPRINTK("BIOS file checksum mismatch\n");
424                 err = FAIL_CHECK_SUM;
425                 goto out2;
426         }
427         if (flash_command == FLASH_CMD_UPDATE) {
428                 asd_ha->bios_status = FLASH_IN_PROGRESS;
429                 err = asd_write_flash_seg(asd_ha,
430                         &asd_ha->bios_image->data[sizeof(*hdr_ptr)],
431                         0, hdr_ptr->filelen-sizeof(*hdr_ptr));
432                 if (!err)
433                         err = asd_verify_flash_seg(asd_ha,
434                                 &asd_ha->bios_image->data[sizeof(*hdr_ptr)],
435                                 0, hdr_ptr->filelen-sizeof(*hdr_ptr));
436         } else {
437                 asd_ha->bios_status = FLASH_IN_PROGRESS;
438                 err = asd_verify_flash_seg(asd_ha,
439                         &asd_ha->bios_image->data[sizeof(header)],
440                         0, hdr_ptr->filelen-sizeof(header));
441         }
442 
443 out2:
444         release_firmware(asd_ha->bios_image);
445 out1:
446         kfree(cmd_ptr);
447 out:
448         asd_ha->bios_status = err;
449 
450         if (!err)
451                 return count;
452         else
453                 return -err;
454 }
455 
456 static ssize_t asd_show_update_bios(struct device *dev,
457                                     struct device_attribute *attr, char *buf)
458 {
459         int i;
460         struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev);
461 
462         for (i = 0; flash_error_table[i].err_code != 0; i++) {
463                 if (flash_error_table[i].err_code == asd_ha->bios_status)
464                         break;
465         }
466         if (asd_ha->bios_status != FLASH_IN_PROGRESS)
467                 asd_ha->bios_status = FLASH_OK;
468 
469         return snprintf(buf, PAGE_SIZE, "status=%x %s\n",
470                         flash_error_table[i].err_code,
471                         flash_error_table[i].reason);
472 }
473 
474 static DEVICE_ATTR(update_bios, S_IRUGO|S_IWUSR,
475         asd_show_update_bios, asd_store_update_bios);
476 
477 static int asd_create_dev_attrs(struct asd_ha_struct *asd_ha)
478 {
479         int err;
480 
481         err = device_create_file(&asd_ha->pcidev->dev, &dev_attr_revision);
482         if (err)
483                 return err;
484 
485         err = device_create_file(&asd_ha->pcidev->dev, &dev_attr_bios_build);
486         if (err)
487                 goto err_rev;
488 
489         err = device_create_file(&asd_ha->pcidev->dev, &dev_attr_pcba_sn);
490         if (err)
491                 goto err_biosb;
492         err = device_create_file(&asd_ha->pcidev->dev, &dev_attr_update_bios);
493         if (err)
494                 goto err_update_bios;
495 
496         return 0;
497 
498 err_update_bios:
499         device_remove_file(&asd_ha->pcidev->dev, &dev_attr_pcba_sn);
500 err_biosb:
501         device_remove_file(&asd_ha->pcidev->dev, &dev_attr_bios_build);
502 err_rev:
503         device_remove_file(&asd_ha->pcidev->dev, &dev_attr_revision);
504         return err;
505 }
506 
507 static void asd_remove_dev_attrs(struct asd_ha_struct *asd_ha)
508 {
509         device_remove_file(&asd_ha->pcidev->dev, &dev_attr_revision);
510         device_remove_file(&asd_ha->pcidev->dev, &dev_attr_bios_build);
511         device_remove_file(&asd_ha->pcidev->dev, &dev_attr_pcba_sn);
512         device_remove_file(&asd_ha->pcidev->dev, &dev_attr_update_bios);
513 }
514 
515 /* The first entry, 0, is used for dynamic ids, the rest for devices
516  * we know about.
517  */
518 static const struct asd_pcidev_struct {
519         const char * name;
520         int (*setup)(struct asd_ha_struct *asd_ha);
521 } asd_pcidev_data[] = {
522         /* Id 0 is used for dynamic ids. */
523         { .name  = "Adaptec AIC-94xx SAS/SATA Host Adapter",
524           .setup = asd_aic9410_setup
525         },
526         { .name  = "Adaptec AIC-9410W SAS/SATA Host Adapter",
527           .setup = asd_aic9410_setup
528         },
529         { .name  = "Adaptec AIC-9405W SAS/SATA Host Adapter",
530           .setup = asd_aic9405_setup
531         },
532 };
533 
534 static int asd_create_ha_caches(struct asd_ha_struct *asd_ha)
535 {
536         asd_ha->scb_pool = dma_pool_create(ASD_DRIVER_NAME "_scb_pool",
537                                            &asd_ha->pcidev->dev,
538                                            sizeof(struct scb),
539                                            8, 0);
540         if (!asd_ha->scb_pool) {
541                 asd_printk("couldn't create scb pool\n");
542                 return -ENOMEM;
543         }
544 
545         return 0;
546 }
547 
548 /**
549  * asd_free_edbs -- free empty data buffers
550  * asd_ha: pointer to host adapter structure
551  */
552 static void asd_free_edbs(struct asd_ha_struct *asd_ha)
553 {
554         struct asd_seq_data *seq = &asd_ha->seq;
555         int i;
556 
557         for (i = 0; i < seq->num_edbs; i++)
558                 asd_free_coherent(asd_ha, seq->edb_arr[i]);
559         kfree(seq->edb_arr);
560         seq->edb_arr = NULL;
561 }
562 
563 static void asd_free_escbs(struct asd_ha_struct *asd_ha)
564 {
565         struct asd_seq_data *seq = &asd_ha->seq;
566         int i;
567 
568         for (i = 0; i < seq->num_escbs; i++) {
569                 if (!list_empty(&seq->escb_arr[i]->list))
570                         list_del_init(&seq->escb_arr[i]->list);
571 
572                 asd_ascb_free(seq->escb_arr[i]);
573         }
574         kfree(seq->escb_arr);
575         seq->escb_arr = NULL;
576 }
577 
578 static void asd_destroy_ha_caches(struct asd_ha_struct *asd_ha)
579 {
580         int i;
581 
582         if (asd_ha->hw_prof.ddb_ext)
583                 asd_free_coherent(asd_ha, asd_ha->hw_prof.ddb_ext);
584         if (asd_ha->hw_prof.scb_ext)
585                 asd_free_coherent(asd_ha, asd_ha->hw_prof.scb_ext);
586 
587         if (asd_ha->hw_prof.ddb_bitmap)
588                 kfree(asd_ha->hw_prof.ddb_bitmap);
589         asd_ha->hw_prof.ddb_bitmap = NULL;
590 
591         for (i = 0; i < ASD_MAX_PHYS; i++) {
592                 struct asd_phy *phy = &asd_ha->phys[i];
593 
594                 asd_free_coherent(asd_ha, phy->id_frm_tok);
595         }
596         if (asd_ha->seq.escb_arr)
597                 asd_free_escbs(asd_ha);
598         if (asd_ha->seq.edb_arr)
599                 asd_free_edbs(asd_ha);
600         if (asd_ha->hw_prof.ue.area) {
601                 kfree(asd_ha->hw_prof.ue.area);
602                 asd_ha->hw_prof.ue.area = NULL;
603         }
604         if (asd_ha->seq.tc_index_array) {
605                 kfree(asd_ha->seq.tc_index_array);
606                 kfree(asd_ha->seq.tc_index_bitmap);
607                 asd_ha->seq.tc_index_array = NULL;
608                 asd_ha->seq.tc_index_bitmap = NULL;
609         }
610         if (asd_ha->seq.actual_dl) {
611                         asd_free_coherent(asd_ha, asd_ha->seq.actual_dl);
612                         asd_ha->seq.actual_dl = NULL;
613                         asd_ha->seq.dl = NULL;
614         }
615         if (asd_ha->seq.next_scb.vaddr) {
616                 dma_pool_free(asd_ha->scb_pool, asd_ha->seq.next_scb.vaddr,
617                               asd_ha->seq.next_scb.dma_handle);
618                 asd_ha->seq.next_scb.vaddr = NULL;
619         }
620         dma_pool_destroy(asd_ha->scb_pool);
621         asd_ha->scb_pool = NULL;
622 }
623 
624 struct kmem_cache *asd_dma_token_cache;
625 struct kmem_cache *asd_ascb_cache;
626 
627 static int asd_create_global_caches(void)
628 {
629         if (!asd_dma_token_cache) {
630                 asd_dma_token_cache
631                         = kmem_cache_create(ASD_DRIVER_NAME "_dma_token",
632                                             sizeof(struct asd_dma_tok),
633                                             0,
634                                             SLAB_HWCACHE_ALIGN,
635                                             NULL);
636                 if (!asd_dma_token_cache) {
637                         asd_printk("couldn't create dma token cache\n");
638                         return -ENOMEM;
639                 }
640         }
641 
642         if (!asd_ascb_cache) {
643                 asd_ascb_cache = kmem_cache_create(ASD_DRIVER_NAME "_ascb",
644                                                    sizeof(struct asd_ascb),
645                                                    0,
646                                                    SLAB_HWCACHE_ALIGN,
647                                                    NULL);
648                 if (!asd_ascb_cache) {
649                         asd_printk("couldn't create ascb cache\n");
650                         goto Err;
651                 }
652         }
653 
654         return 0;
655 Err:
656         kmem_cache_destroy(asd_dma_token_cache);
657         asd_dma_token_cache = NULL;
658         return -ENOMEM;
659 }
660 
661 static void asd_destroy_global_caches(void)
662 {
663         if (asd_dma_token_cache)
664                 kmem_cache_destroy(asd_dma_token_cache);
665         asd_dma_token_cache = NULL;
666 
667         if (asd_ascb_cache)
668                 kmem_cache_destroy(asd_ascb_cache);
669         asd_ascb_cache = NULL;
670 }
671 
672 static int asd_register_sas_ha(struct asd_ha_struct *asd_ha)
673 {
674         int i;
675         struct asd_sas_phy   **sas_phys =
676                 kcalloc(ASD_MAX_PHYS, sizeof(*sas_phys), GFP_KERNEL);
677         struct asd_sas_port  **sas_ports =
678                 kcalloc(ASD_MAX_PHYS, sizeof(*sas_ports), GFP_KERNEL);
679 
680         if (!sas_phys || !sas_ports) {
681                 kfree(sas_phys);
682                 kfree(sas_ports);
683                 return -ENOMEM;
684         }
685 
686         asd_ha->sas_ha.sas_ha_name = (char *) asd_ha->name;
687         asd_ha->sas_ha.lldd_module = THIS_MODULE;
688         asd_ha->sas_ha.sas_addr = &asd_ha->hw_prof.sas_addr[0];
689 
690         for (i = 0; i < ASD_MAX_PHYS; i++) {
691                 sas_phys[i] = &asd_ha->phys[i].sas_phy;
692                 sas_ports[i] = &asd_ha->ports[i];
693         }
694 
695         asd_ha->sas_ha.sas_phy = sas_phys;
696         asd_ha->sas_ha.sas_port= sas_ports;
697         asd_ha->sas_ha.num_phys= ASD_MAX_PHYS;
698 
699         return sas_register_ha(&asd_ha->sas_ha);
700 }
701 
702 static int asd_unregister_sas_ha(struct asd_ha_struct *asd_ha)
703 {
704         int err;
705 
706         scsi_remove_host(asd_ha->sas_ha.core.shost);
707         err = sas_unregister_ha(&asd_ha->sas_ha);
708 
709         sas_remove_host(asd_ha->sas_ha.core.shost);
710         scsi_host_put(asd_ha->sas_ha.core.shost);
711 
712         kfree(asd_ha->sas_ha.sas_phy);
713         kfree(asd_ha->sas_ha.sas_port);
714 
715         return err;
716 }
717 
718 static int asd_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)
719 {
720         const struct asd_pcidev_struct *asd_dev;
721         unsigned asd_id = (unsigned) id->driver_data;
722         struct asd_ha_struct *asd_ha;
723         struct Scsi_Host *shost;
724         int err;
725 
726         if (asd_id >= ARRAY_SIZE(asd_pcidev_data)) {
727                 asd_printk("wrong driver_data in PCI table\n");
728                 return -ENODEV;
729         }
730 
731         if ((err = pci_enable_device(dev))) {
732                 asd_printk("couldn't enable device %s\n", pci_name(dev));
733                 return err;
734         }
735 
736         pci_set_master(dev);
737 
738         err = -ENOMEM;
739 
740         shost = scsi_host_alloc(&aic94xx_sht, sizeof(void *));
741         if (!shost)
742                 goto Err;
743 
744         asd_dev = &asd_pcidev_data[asd_id];
745 
746         asd_ha = kzalloc(sizeof(*asd_ha), GFP_KERNEL);
747         if (!asd_ha) {
748                 asd_printk("out of memory\n");
749                 goto Err_put;
750         }
751         asd_ha->pcidev = dev;
752         asd_ha->sas_ha.dev = &asd_ha->pcidev->dev;
753         asd_ha->sas_ha.lldd_ha = asd_ha;
754 
755         asd_ha->bios_status = FLASH_OK;
756         asd_ha->name = asd_dev->name;
757         asd_printk("found %s, device %s\n", asd_ha->name, pci_name(dev));
758 
759         SHOST_TO_SAS_HA(shost) = &asd_ha->sas_ha;
760         asd_ha->sas_ha.core.shost = shost;
761         shost->transportt = aic94xx_transport_template;
762         shost->max_id = ~0;
763         shost->max_lun = ~0;
764         shost->max_cmd_len = 16;
765 
766         err = scsi_add_host(shost, &dev->dev);
767         if (err)
768                 goto Err_free;
769 
770         err = asd_dev->setup(asd_ha);
771         if (err)
772                 goto Err_remove;
773 
774         err = -ENODEV;
775         if (!pci_set_dma_mask(dev, DMA_BIT_MASK(64))
776             && !pci_set_consistent_dma_mask(dev, DMA_BIT_MASK(64)))
777                 ;
778         else if (!pci_set_dma_mask(dev, DMA_BIT_MASK(32))
779                  && !pci_set_consistent_dma_mask(dev, DMA_BIT_MASK(32)))
780                 ;
781         else {
782                 asd_printk("no suitable DMA mask for %s\n", pci_name(dev));
783                 goto Err_remove;
784         }
785 
786         pci_set_drvdata(dev, asd_ha);
787 
788         err = asd_map_ha(asd_ha);
789         if (err)
790                 goto Err_remove;
791 
792         err = asd_create_ha_caches(asd_ha);
793         if (err)
794                 goto Err_unmap;
795 
796         err = asd_init_hw(asd_ha);
797         if (err)
798                 goto Err_free_cache;
799 
800         asd_printk("device %s: SAS addr %llx, PCBA SN %s, %d phys, %d enabled "
801                    "phys, flash %s, BIOS %s%d\n",
802                    pci_name(dev), SAS_ADDR(asd_ha->hw_prof.sas_addr),
803                    asd_ha->hw_prof.pcba_sn, asd_ha->hw_prof.max_phys,
804                    asd_ha->hw_prof.num_phys,
805                    asd_ha->hw_prof.flash.present ? "present" : "not present",
806                    asd_ha->hw_prof.bios.present ? "build " : "not present",
807                    asd_ha->hw_prof.bios.bld);
808 
809         shost->can_queue = asd_ha->seq.can_queue;
810 
811         if (use_msi)
812                 pci_enable_msi(asd_ha->pcidev);
813 
814         err = request_irq(asd_ha->pcidev->irq, asd_hw_isr, IRQF_SHARED,
815                           ASD_DRIVER_NAME, asd_ha);
816         if (err) {
817                 asd_printk("couldn't get irq %d for %s\n",
818                            asd_ha->pcidev->irq, pci_name(asd_ha->pcidev));
819                 goto Err_irq;
820         }
821         asd_enable_ints(asd_ha);
822 
823         err = asd_init_post_escbs(asd_ha);
824         if (err) {
825                 asd_printk("couldn't post escbs for %s\n",
826                            pci_name(asd_ha->pcidev));
827                 goto Err_escbs;
828         }
829         ASD_DPRINTK("escbs posted\n");
830 
831         err = asd_create_dev_attrs(asd_ha);
832         if (err)
833                 goto Err_dev_attrs;
834 
835         err = asd_register_sas_ha(asd_ha);
836         if (err)
837                 goto Err_reg_sas;
838 
839         scsi_scan_host(shost);
840 
841         return 0;
842 
843 Err_reg_sas:
844         asd_remove_dev_attrs(asd_ha);
845 Err_dev_attrs:
846 Err_escbs:
847         asd_disable_ints(asd_ha);
848         free_irq(dev->irq, asd_ha);
849 Err_irq:
850         if (use_msi)
851                 pci_disable_msi(dev);
852         asd_chip_hardrst(asd_ha);
853 Err_free_cache:
854         asd_destroy_ha_caches(asd_ha);
855 Err_unmap:
856         asd_unmap_ha(asd_ha);
857 Err_remove:
858         scsi_remove_host(shost);
859 Err_free:
860         kfree(asd_ha);
861 Err_put:
862         scsi_host_put(shost);
863 Err:
864         pci_disable_device(dev);
865         return err;
866 }
867 
868 static void asd_free_queues(struct asd_ha_struct *asd_ha)
869 {
870         unsigned long flags;
871         LIST_HEAD(pending);
872         struct list_head *n, *pos;
873 
874         spin_lock_irqsave(&asd_ha->seq.pend_q_lock, flags);
875         asd_ha->seq.pending = 0;
876         list_splice_init(&asd_ha->seq.pend_q, &pending);
877         spin_unlock_irqrestore(&asd_ha->seq.pend_q_lock, flags);
878 
879         if (!list_empty(&pending))
880                 ASD_DPRINTK("Uh-oh! Pending is not empty!\n");
881 
882         list_for_each_safe(pos, n, &pending) {
883                 struct asd_ascb *ascb = list_entry(pos, struct asd_ascb, list);
884                 /*
885                  * Delete unexpired ascb timers.  This may happen if we issue
886                  * a CONTROL PHY scb to an adapter and rmmod before the scb
887                  * times out.  Apparently we don't wait for the CONTROL PHY
888                  * to complete, so it doesn't matter if we kill the timer.
889                  */
890                 del_timer_sync(&ascb->timer);
891                 WARN_ON(ascb->scb->header.opcode != CONTROL_PHY);
892 
893                 list_del_init(pos);
894                 ASD_DPRINTK("freeing from pending\n");
895                 asd_ascb_free(ascb);
896         }
897 }
898 
899 static void asd_turn_off_leds(struct asd_ha_struct *asd_ha)
900 {
901         u8 phy_mask = asd_ha->hw_prof.enabled_phys;
902         u8 i;
903 
904         for_each_phy(phy_mask, phy_mask, i) {
905                 asd_turn_led(asd_ha, i, 0);
906                 asd_control_led(asd_ha, i, 0);
907         }
908 }
909 
910 static void asd_pci_remove(struct pci_dev *dev)
911 {
912         struct asd_ha_struct *asd_ha = pci_get_drvdata(dev);
913 
914         if (!asd_ha)
915                 return;
916 
917         asd_unregister_sas_ha(asd_ha);
918 
919         asd_disable_ints(asd_ha);
920 
921         asd_remove_dev_attrs(asd_ha);
922 
923         /* XXX more here as needed */
924 
925         free_irq(dev->irq, asd_ha);
926         if (use_msi)
927                 pci_disable_msi(asd_ha->pcidev);
928         asd_turn_off_leds(asd_ha);
929         asd_chip_hardrst(asd_ha);
930         asd_free_queues(asd_ha);
931         asd_destroy_ha_caches(asd_ha);
932         asd_unmap_ha(asd_ha);
933         kfree(asd_ha);
934         pci_disable_device(dev);
935         return;
936 }
937 
938 static void asd_scan_start(struct Scsi_Host *shost)
939 {
940         struct asd_ha_struct *asd_ha;
941         int err;
942 
943         asd_ha = SHOST_TO_SAS_HA(shost)->lldd_ha;
944         err = asd_enable_phys(asd_ha, asd_ha->hw_prof.enabled_phys);
945         if (err)
946                 asd_printk("Couldn't enable phys, err:%d\n", err);
947 }
948 
949 static int asd_scan_finished(struct Scsi_Host *shost, unsigned long time)
950 {
951         /* give the phy enabling interrupt event time to come in (1s
952          * is empirically about all it takes) */
953         if (time < HZ)
954                 return 0;
955         /* Wait for discovery to finish */
956         sas_drain_work(SHOST_TO_SAS_HA(shost));
957         return 1;
958 }
959 
960 static ssize_t asd_version_show(struct device_driver *driver, char *buf)
961 {
962         return snprintf(buf, PAGE_SIZE, "%s\n", ASD_DRIVER_VERSION);
963 }
964 static DRIVER_ATTR(version, S_IRUGO, asd_version_show, NULL);
965 
966 static int asd_create_driver_attrs(struct device_driver *driver)
967 {
968         return driver_create_file(driver, &driver_attr_version);
969 }
970 
971 static void asd_remove_driver_attrs(struct device_driver *driver)
972 {
973         driver_remove_file(driver, &driver_attr_version);
974 }
975 
976 static struct sas_domain_function_template aic94xx_transport_functions = {
977         .lldd_dev_found         = asd_dev_found,
978         .lldd_dev_gone          = asd_dev_gone,
979 
980         .lldd_execute_task      = asd_execute_task,
981 
982         .lldd_abort_task        = asd_abort_task,
983         .lldd_abort_task_set    = asd_abort_task_set,
984         .lldd_clear_aca         = asd_clear_aca,
985         .lldd_clear_task_set    = asd_clear_task_set,
986         .lldd_I_T_nexus_reset   = asd_I_T_nexus_reset,
987         .lldd_lu_reset          = asd_lu_reset,
988         .lldd_query_task        = asd_query_task,
989 
990         .lldd_clear_nexus_port  = asd_clear_nexus_port,
991         .lldd_clear_nexus_ha    = asd_clear_nexus_ha,
992 
993         .lldd_control_phy       = asd_control_phy,
994 
995         .lldd_ata_set_dmamode   = asd_set_dmamode,
996 };
997 
998 static const struct pci_device_id aic94xx_pci_table[] = {
999         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x410),0, 0, 1},
1000         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x412),0, 0, 1},
1001         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x416),0, 0, 1},
1002         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x41E),0, 0, 1},
1003         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x41F),0, 0, 1},
1004         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x430),0, 0, 2},
1005         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x432),0, 0, 2},
1006         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x43E),0, 0, 2},
1007         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x43F),0, 0, 2},
1008         {}
1009 };
1010 
1011 MODULE_DEVICE_TABLE(pci, aic94xx_pci_table);
1012 
1013 static struct pci_driver aic94xx_pci_driver = {
1014         .name           = ASD_DRIVER_NAME,
1015         .id_table       = aic94xx_pci_table,
1016         .probe          = asd_pci_probe,
1017         .remove         = asd_pci_remove,
1018 };
1019 
1020 static int __init aic94xx_init(void)
1021 {
1022         int err;
1023 
1024 
1025         asd_printk("%s version %s loaded\n", ASD_DRIVER_DESCRIPTION,
1026                    ASD_DRIVER_VERSION);
1027 
1028         err = asd_create_global_caches();
1029         if (err)
1030                 return err;
1031 
1032         aic94xx_transport_template =
1033                 sas_domain_attach_transport(&aic94xx_transport_functions);
1034         if (!aic94xx_transport_template)
1035                 goto out_destroy_caches;
1036 
1037         err = pci_register_driver(&aic94xx_pci_driver);
1038         if (err)
1039                 goto out_release_transport;
1040 
1041         err = asd_create_driver_attrs(&aic94xx_pci_driver.driver);
1042         if (err)
1043                 goto out_unregister_pcidrv;
1044 
1045         return err;
1046 
1047  out_unregister_pcidrv:
1048         pci_unregister_driver(&aic94xx_pci_driver);
1049  out_release_transport:
1050         sas_release_transport(aic94xx_transport_template);
1051  out_destroy_caches:
1052         asd_destroy_global_caches();
1053 
1054         return err;
1055 }
1056 
1057 static void __exit aic94xx_exit(void)
1058 {
1059         asd_remove_driver_attrs(&aic94xx_pci_driver.driver);
1060         pci_unregister_driver(&aic94xx_pci_driver);
1061         sas_release_transport(aic94xx_transport_template);
1062         asd_release_firmware();
1063         asd_destroy_global_caches();
1064         asd_printk("%s version %s unloaded\n", ASD_DRIVER_DESCRIPTION,
1065                    ASD_DRIVER_VERSION);
1066 }
1067 
1068 module_init(aic94xx_init);
1069 module_exit(aic94xx_exit);
1070 
1071 MODULE_AUTHOR("Luben Tuikov <luben_tuikov@adaptec.com>");
1072 MODULE_DESCRIPTION(ASD_DRIVER_DESCRIPTION);
1073 MODULE_LICENSE("GPL v2");
1074 MODULE_VERSION(ASD_DRIVER_VERSION);
1075 

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