Version:  2.0.40 2.2.26 2.4.37 3.6 3.7 3.8 3.9 3.10 3.11 3.12 3.13 3.14 3.15 3.16 3.17 3.18 3.19 4.0 4.1 4.2

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         .use_blk_tags           = 1,
 77         .track_queue_depth      = 1,
 78 };
 79 
 80 static int asd_map_memio(struct asd_ha_struct *asd_ha)
 81 {
 82         int err, i;
 83         struct asd_ha_addrspace *io_handle;
 84 
 85         asd_ha->iospace = 0;
 86         for (i = 0; i < 3; i += 2) {
 87                 io_handle = &asd_ha->io_handle[i==0?0:1];
 88                 io_handle->start = pci_resource_start(asd_ha->pcidev, i);
 89                 io_handle->len   = pci_resource_len(asd_ha->pcidev, i);
 90                 io_handle->flags = pci_resource_flags(asd_ha->pcidev, i);
 91                 err = -ENODEV;
 92                 if (!io_handle->start || !io_handle->len) {
 93                         asd_printk("MBAR%d start or length for %s is 0.\n",
 94                                    i==0?0:1, pci_name(asd_ha->pcidev));
 95                         goto Err;
 96                 }
 97                 err = pci_request_region(asd_ha->pcidev, i, ASD_DRIVER_NAME);
 98                 if (err) {
 99                         asd_printk("couldn't reserve memory region for %s\n",
100                                    pci_name(asd_ha->pcidev));
101                         goto Err;
102                 }
103                 if (io_handle->flags & IORESOURCE_CACHEABLE)
104                         io_handle->addr = ioremap(io_handle->start,
105                                                   io_handle->len);
106                 else
107                         io_handle->addr = ioremap_nocache(io_handle->start,
108                                                           io_handle->len);
109                 if (!io_handle->addr) {
110                         asd_printk("couldn't map MBAR%d of %s\n", i==0?0:1,
111                                    pci_name(asd_ha->pcidev));
112                         goto Err_unreq;
113                 }
114         }
115 
116         return 0;
117 Err_unreq:
118         pci_release_region(asd_ha->pcidev, i);
119 Err:
120         if (i > 0) {
121                 io_handle = &asd_ha->io_handle[0];
122                 iounmap(io_handle->addr);
123                 pci_release_region(asd_ha->pcidev, 0);
124         }
125         return err;
126 }
127 
128 static void asd_unmap_memio(struct asd_ha_struct *asd_ha)
129 {
130         struct asd_ha_addrspace *io_handle;
131 
132         io_handle = &asd_ha->io_handle[1];
133         iounmap(io_handle->addr);
134         pci_release_region(asd_ha->pcidev, 2);
135 
136         io_handle = &asd_ha->io_handle[0];
137         iounmap(io_handle->addr);
138         pci_release_region(asd_ha->pcidev, 0);
139 }
140 
141 static int asd_map_ioport(struct asd_ha_struct *asd_ha)
142 {
143         int i = PCI_IOBAR_OFFSET, err;
144         struct asd_ha_addrspace *io_handle = &asd_ha->io_handle[0];
145 
146         asd_ha->iospace = 1;
147         io_handle->start = pci_resource_start(asd_ha->pcidev, i);
148         io_handle->len   = pci_resource_len(asd_ha->pcidev, i);
149         io_handle->flags = pci_resource_flags(asd_ha->pcidev, i);
150         io_handle->addr  = (void __iomem *) io_handle->start;
151         if (!io_handle->start || !io_handle->len) {
152                 asd_printk("couldn't get IO ports for %s\n",
153                            pci_name(asd_ha->pcidev));
154                 return -ENODEV;
155         }
156         err = pci_request_region(asd_ha->pcidev, i, ASD_DRIVER_NAME);
157         if (err) {
158                 asd_printk("couldn't reserve io space for %s\n",
159                            pci_name(asd_ha->pcidev));
160         }
161 
162         return err;
163 }
164 
165 static void asd_unmap_ioport(struct asd_ha_struct *asd_ha)
166 {
167         pci_release_region(asd_ha->pcidev, PCI_IOBAR_OFFSET);
168 }
169 
170 static int asd_map_ha(struct asd_ha_struct *asd_ha)
171 {
172         int err;
173         u16 cmd_reg;
174 
175         err = pci_read_config_word(asd_ha->pcidev, PCI_COMMAND, &cmd_reg);
176         if (err) {
177                 asd_printk("couldn't read command register of %s\n",
178                            pci_name(asd_ha->pcidev));
179                 goto Err;
180         }
181 
182         err = -ENODEV;
183         if (cmd_reg & PCI_COMMAND_MEMORY) {
184                 if ((err = asd_map_memio(asd_ha)))
185                         goto Err;
186         } else if (cmd_reg & PCI_COMMAND_IO) {
187                 if ((err = asd_map_ioport(asd_ha)))
188                         goto Err;
189                 asd_printk("%s ioport mapped -- upgrade your hardware\n",
190                            pci_name(asd_ha->pcidev));
191         } else {
192                 asd_printk("no proper device access to %s\n",
193                            pci_name(asd_ha->pcidev));
194                 goto Err;
195         }
196 
197         return 0;
198 Err:
199         return err;
200 }
201 
202 static void asd_unmap_ha(struct asd_ha_struct *asd_ha)
203 {
204         if (asd_ha->iospace)
205                 asd_unmap_ioport(asd_ha);
206         else
207                 asd_unmap_memio(asd_ha);
208 }
209 
210 static const char *asd_dev_rev[30] = {
211         [0] = "A0",
212         [1] = "A1",
213         [8] = "B0",
214 };
215 
216 static int asd_common_setup(struct asd_ha_struct *asd_ha)
217 {
218         int err, i;
219 
220         asd_ha->revision_id = asd_ha->pcidev->revision;
221 
222         err = -ENODEV;
223         if (asd_ha->revision_id < AIC9410_DEV_REV_B0) {
224                 asd_printk("%s is revision %s (%X), which is not supported\n",
225                            pci_name(asd_ha->pcidev),
226                            asd_dev_rev[asd_ha->revision_id],
227                            asd_ha->revision_id);
228                 goto Err;
229         }
230         /* Provide some sane default values. */
231         asd_ha->hw_prof.max_scbs = 512;
232         asd_ha->hw_prof.max_ddbs = ASD_MAX_DDBS;
233         asd_ha->hw_prof.num_phys = ASD_MAX_PHYS;
234         /* All phys are enabled, by default. */
235         asd_ha->hw_prof.enabled_phys = 0xFF;
236         for (i = 0; i < ASD_MAX_PHYS; i++) {
237                 asd_ha->hw_prof.phy_desc[i].max_sas_lrate =
238                         SAS_LINK_RATE_3_0_GBPS;
239                 asd_ha->hw_prof.phy_desc[i].min_sas_lrate =
240                         SAS_LINK_RATE_1_5_GBPS;
241                 asd_ha->hw_prof.phy_desc[i].max_sata_lrate =
242                         SAS_LINK_RATE_1_5_GBPS;
243                 asd_ha->hw_prof.phy_desc[i].min_sata_lrate =
244                         SAS_LINK_RATE_1_5_GBPS;
245         }
246 
247         return 0;
248 Err:
249         return err;
250 }
251 
252 static int asd_aic9410_setup(struct asd_ha_struct *asd_ha)
253 {
254         int err = asd_common_setup(asd_ha);
255 
256         if (err)
257                 return err;
258 
259         asd_ha->hw_prof.addr_range = 8;
260         asd_ha->hw_prof.port_name_base = 0;
261         asd_ha->hw_prof.dev_name_base = 8;
262         asd_ha->hw_prof.sata_name_base = 16;
263 
264         return 0;
265 }
266 
267 static int asd_aic9405_setup(struct asd_ha_struct *asd_ha)
268 {
269         int err = asd_common_setup(asd_ha);
270 
271         if (err)
272                 return err;
273 
274         asd_ha->hw_prof.addr_range = 4;
275         asd_ha->hw_prof.port_name_base = 0;
276         asd_ha->hw_prof.dev_name_base = 4;
277         asd_ha->hw_prof.sata_name_base = 8;
278 
279         return 0;
280 }
281 
282 static ssize_t asd_show_dev_rev(struct device *dev,
283                                 struct device_attribute *attr, char *buf)
284 {
285         struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev);
286         return snprintf(buf, PAGE_SIZE, "%s\n",
287                         asd_dev_rev[asd_ha->revision_id]);
288 }
289 static DEVICE_ATTR(revision, S_IRUGO, asd_show_dev_rev, NULL);
290 
291 static ssize_t asd_show_dev_bios_build(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, "%d\n", asd_ha->hw_prof.bios.bld);
296 }
297 static DEVICE_ATTR(bios_build, S_IRUGO, asd_show_dev_bios_build, NULL);
298 
299 static ssize_t asd_show_dev_pcba_sn(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, "%s\n", asd_ha->hw_prof.pcba_sn);
304 }
305 static DEVICE_ATTR(pcba_sn, S_IRUGO, asd_show_dev_pcba_sn, NULL);
306 
307 #define FLASH_CMD_NONE      0x00
308 #define FLASH_CMD_UPDATE    0x01
309 #define FLASH_CMD_VERIFY    0x02
310 
311 struct flash_command {
312      u8      command[8];
313      int     code;
314 };
315 
316 static struct flash_command flash_command_table[] =
317 {
318      {"verify",      FLASH_CMD_VERIFY},
319      {"update",      FLASH_CMD_UPDATE},
320      {"",            FLASH_CMD_NONE}      /* Last entry should be NULL. */
321 };
322 
323 struct error_bios {
324      char    *reason;
325      int     err_code;
326 };
327 
328 static struct error_bios flash_error_table[] =
329 {
330      {"Failed to open bios image file",      FAIL_OPEN_BIOS_FILE},
331      {"PCI ID mismatch",                     FAIL_CHECK_PCI_ID},
332      {"Checksum mismatch",                   FAIL_CHECK_SUM},
333      {"Unknown Error",                       FAIL_UNKNOWN},
334      {"Failed to verify.",                   FAIL_VERIFY},
335      {"Failed to reset flash chip.",         FAIL_RESET_FLASH},
336      {"Failed to find flash chip type.",     FAIL_FIND_FLASH_ID},
337      {"Failed to erash flash chip.",         FAIL_ERASE_FLASH},
338      {"Failed to program flash chip.",       FAIL_WRITE_FLASH},
339      {"Flash in progress",                   FLASH_IN_PROGRESS},
340      {"Image file size Error",               FAIL_FILE_SIZE},
341      {"Input parameter error",               FAIL_PARAMETERS},
342      {"Out of memory",                       FAIL_OUT_MEMORY},
343      {"OK", 0}  /* Last entry err_code = 0. */
344 };
345 
346 static ssize_t asd_store_update_bios(struct device *dev,
347         struct device_attribute *attr,
348         const char *buf, size_t count)
349 {
350         struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev);
351         char *cmd_ptr, *filename_ptr;
352         struct bios_file_header header, *hdr_ptr;
353         int res, i;
354         u32 csum = 0;
355         int flash_command = FLASH_CMD_NONE;
356         int err = 0;
357 
358         cmd_ptr = kzalloc(count*2, GFP_KERNEL);
359 
360         if (!cmd_ptr) {
361                 err = FAIL_OUT_MEMORY;
362                 goto out;
363         }
364 
365         filename_ptr = cmd_ptr + count;
366         res = sscanf(buf, "%s %s", cmd_ptr, filename_ptr);
367         if (res != 2) {
368                 err = FAIL_PARAMETERS;
369                 goto out1;
370         }
371 
372         for (i = 0; flash_command_table[i].code != FLASH_CMD_NONE; i++) {
373                 if (!memcmp(flash_command_table[i].command,
374                                  cmd_ptr, strlen(cmd_ptr))) {
375                         flash_command = flash_command_table[i].code;
376                         break;
377                 }
378         }
379         if (flash_command == FLASH_CMD_NONE) {
380                 err = FAIL_PARAMETERS;
381                 goto out1;
382         }
383 
384         if (asd_ha->bios_status == FLASH_IN_PROGRESS) {
385                 err = FLASH_IN_PROGRESS;
386                 goto out1;
387         }
388         err = request_firmware(&asd_ha->bios_image,
389                                    filename_ptr,
390                                    &asd_ha->pcidev->dev);
391         if (err) {
392                 asd_printk("Failed to load bios image file %s, error %d\n",
393                            filename_ptr, err);
394                 err = FAIL_OPEN_BIOS_FILE;
395                 goto out1;
396         }
397 
398         hdr_ptr = (struct bios_file_header *)asd_ha->bios_image->data;
399 
400         if ((hdr_ptr->contrl_id.vendor != asd_ha->pcidev->vendor ||
401                 hdr_ptr->contrl_id.device != asd_ha->pcidev->device) &&
402                 (hdr_ptr->contrl_id.sub_vendor != asd_ha->pcidev->vendor ||
403                 hdr_ptr->contrl_id.sub_device != asd_ha->pcidev->device)) {
404 
405                 ASD_DPRINTK("The PCI vendor or device id does not match\n");
406                 ASD_DPRINTK("vendor=%x dev=%x sub_vendor=%x sub_dev=%x"
407                 " pci vendor=%x pci dev=%x\n",
408                 hdr_ptr->contrl_id.vendor,
409                 hdr_ptr->contrl_id.device,
410                 hdr_ptr->contrl_id.sub_vendor,
411                 hdr_ptr->contrl_id.sub_device,
412                 asd_ha->pcidev->vendor,
413                 asd_ha->pcidev->device);
414                 err = FAIL_CHECK_PCI_ID;
415                 goto out2;
416         }
417 
418         if (hdr_ptr->filelen != asd_ha->bios_image->size) {
419                 err = FAIL_FILE_SIZE;
420                 goto out2;
421         }
422 
423         /* calculate checksum */
424         for (i = 0; i < hdr_ptr->filelen; i++)
425                 csum += asd_ha->bios_image->data[i];
426 
427         if ((csum & 0x0000ffff) != hdr_ptr->checksum) {
428                 ASD_DPRINTK("BIOS file checksum mismatch\n");
429                 err = FAIL_CHECK_SUM;
430                 goto out2;
431         }
432         if (flash_command == FLASH_CMD_UPDATE) {
433                 asd_ha->bios_status = FLASH_IN_PROGRESS;
434                 err = asd_write_flash_seg(asd_ha,
435                         &asd_ha->bios_image->data[sizeof(*hdr_ptr)],
436                         0, hdr_ptr->filelen-sizeof(*hdr_ptr));
437                 if (!err)
438                         err = asd_verify_flash_seg(asd_ha,
439                                 &asd_ha->bios_image->data[sizeof(*hdr_ptr)],
440                                 0, hdr_ptr->filelen-sizeof(*hdr_ptr));
441         } else {
442                 asd_ha->bios_status = FLASH_IN_PROGRESS;
443                 err = asd_verify_flash_seg(asd_ha,
444                         &asd_ha->bios_image->data[sizeof(header)],
445                         0, hdr_ptr->filelen-sizeof(header));
446         }
447 
448 out2:
449         release_firmware(asd_ha->bios_image);
450 out1:
451         kfree(cmd_ptr);
452 out:
453         asd_ha->bios_status = err;
454 
455         if (!err)
456                 return count;
457         else
458                 return -err;
459 }
460 
461 static ssize_t asd_show_update_bios(struct device *dev,
462                                     struct device_attribute *attr, char *buf)
463 {
464         int i;
465         struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev);
466 
467         for (i = 0; flash_error_table[i].err_code != 0; i++) {
468                 if (flash_error_table[i].err_code == asd_ha->bios_status)
469                         break;
470         }
471         if (asd_ha->bios_status != FLASH_IN_PROGRESS)
472                 asd_ha->bios_status = FLASH_OK;
473 
474         return snprintf(buf, PAGE_SIZE, "status=%x %s\n",
475                         flash_error_table[i].err_code,
476                         flash_error_table[i].reason);
477 }
478 
479 static DEVICE_ATTR(update_bios, S_IRUGO|S_IWUSR,
480         asd_show_update_bios, asd_store_update_bios);
481 
482 static int asd_create_dev_attrs(struct asd_ha_struct *asd_ha)
483 {
484         int err;
485 
486         err = device_create_file(&asd_ha->pcidev->dev, &dev_attr_revision);
487         if (err)
488                 return err;
489 
490         err = device_create_file(&asd_ha->pcidev->dev, &dev_attr_bios_build);
491         if (err)
492                 goto err_rev;
493 
494         err = device_create_file(&asd_ha->pcidev->dev, &dev_attr_pcba_sn);
495         if (err)
496                 goto err_biosb;
497         err = device_create_file(&asd_ha->pcidev->dev, &dev_attr_update_bios);
498         if (err)
499                 goto err_update_bios;
500 
501         return 0;
502 
503 err_update_bios:
504         device_remove_file(&asd_ha->pcidev->dev, &dev_attr_pcba_sn);
505 err_biosb:
506         device_remove_file(&asd_ha->pcidev->dev, &dev_attr_bios_build);
507 err_rev:
508         device_remove_file(&asd_ha->pcidev->dev, &dev_attr_revision);
509         return err;
510 }
511 
512 static void asd_remove_dev_attrs(struct asd_ha_struct *asd_ha)
513 {
514         device_remove_file(&asd_ha->pcidev->dev, &dev_attr_revision);
515         device_remove_file(&asd_ha->pcidev->dev, &dev_attr_bios_build);
516         device_remove_file(&asd_ha->pcidev->dev, &dev_attr_pcba_sn);
517         device_remove_file(&asd_ha->pcidev->dev, &dev_attr_update_bios);
518 }
519 
520 /* The first entry, 0, is used for dynamic ids, the rest for devices
521  * we know about.
522  */
523 static const struct asd_pcidev_struct {
524         const char * name;
525         int (*setup)(struct asd_ha_struct *asd_ha);
526 } asd_pcidev_data[] = {
527         /* Id 0 is used for dynamic ids. */
528         { .name  = "Adaptec AIC-94xx SAS/SATA Host Adapter",
529           .setup = asd_aic9410_setup
530         },
531         { .name  = "Adaptec AIC-9410W SAS/SATA Host Adapter",
532           .setup = asd_aic9410_setup
533         },
534         { .name  = "Adaptec AIC-9405W SAS/SATA Host Adapter",
535           .setup = asd_aic9405_setup
536         },
537 };
538 
539 static int asd_create_ha_caches(struct asd_ha_struct *asd_ha)
540 {
541         asd_ha->scb_pool = dma_pool_create(ASD_DRIVER_NAME "_scb_pool",
542                                            &asd_ha->pcidev->dev,
543                                            sizeof(struct scb),
544                                            8, 0);
545         if (!asd_ha->scb_pool) {
546                 asd_printk("couldn't create scb pool\n");
547                 return -ENOMEM;
548         }
549 
550         return 0;
551 }
552 
553 /**
554  * asd_free_edbs -- free empty data buffers
555  * asd_ha: pointer to host adapter structure
556  */
557 static void asd_free_edbs(struct asd_ha_struct *asd_ha)
558 {
559         struct asd_seq_data *seq = &asd_ha->seq;
560         int i;
561 
562         for (i = 0; i < seq->num_edbs; i++)
563                 asd_free_coherent(asd_ha, seq->edb_arr[i]);
564         kfree(seq->edb_arr);
565         seq->edb_arr = NULL;
566 }
567 
568 static void asd_free_escbs(struct asd_ha_struct *asd_ha)
569 {
570         struct asd_seq_data *seq = &asd_ha->seq;
571         int i;
572 
573         for (i = 0; i < seq->num_escbs; i++) {
574                 if (!list_empty(&seq->escb_arr[i]->list))
575                         list_del_init(&seq->escb_arr[i]->list);
576 
577                 asd_ascb_free(seq->escb_arr[i]);
578         }
579         kfree(seq->escb_arr);
580         seq->escb_arr = NULL;
581 }
582 
583 static void asd_destroy_ha_caches(struct asd_ha_struct *asd_ha)
584 {
585         int i;
586 
587         if (asd_ha->hw_prof.ddb_ext)
588                 asd_free_coherent(asd_ha, asd_ha->hw_prof.ddb_ext);
589         if (asd_ha->hw_prof.scb_ext)
590                 asd_free_coherent(asd_ha, asd_ha->hw_prof.scb_ext);
591 
592         if (asd_ha->hw_prof.ddb_bitmap)
593                 kfree(asd_ha->hw_prof.ddb_bitmap);
594         asd_ha->hw_prof.ddb_bitmap = NULL;
595 
596         for (i = 0; i < ASD_MAX_PHYS; i++) {
597                 struct asd_phy *phy = &asd_ha->phys[i];
598 
599                 asd_free_coherent(asd_ha, phy->id_frm_tok);
600         }
601         if (asd_ha->seq.escb_arr)
602                 asd_free_escbs(asd_ha);
603         if (asd_ha->seq.edb_arr)
604                 asd_free_edbs(asd_ha);
605         if (asd_ha->hw_prof.ue.area) {
606                 kfree(asd_ha->hw_prof.ue.area);
607                 asd_ha->hw_prof.ue.area = NULL;
608         }
609         if (asd_ha->seq.tc_index_array) {
610                 kfree(asd_ha->seq.tc_index_array);
611                 kfree(asd_ha->seq.tc_index_bitmap);
612                 asd_ha->seq.tc_index_array = NULL;
613                 asd_ha->seq.tc_index_bitmap = NULL;
614         }
615         if (asd_ha->seq.actual_dl) {
616                         asd_free_coherent(asd_ha, asd_ha->seq.actual_dl);
617                         asd_ha->seq.actual_dl = NULL;
618                         asd_ha->seq.dl = NULL;
619         }
620         if (asd_ha->seq.next_scb.vaddr) {
621                 dma_pool_free(asd_ha->scb_pool, asd_ha->seq.next_scb.vaddr,
622                               asd_ha->seq.next_scb.dma_handle);
623                 asd_ha->seq.next_scb.vaddr = NULL;
624         }
625         dma_pool_destroy(asd_ha->scb_pool);
626         asd_ha->scb_pool = NULL;
627 }
628 
629 struct kmem_cache *asd_dma_token_cache;
630 struct kmem_cache *asd_ascb_cache;
631 
632 static int asd_create_global_caches(void)
633 {
634         if (!asd_dma_token_cache) {
635                 asd_dma_token_cache
636                         = kmem_cache_create(ASD_DRIVER_NAME "_dma_token",
637                                             sizeof(struct asd_dma_tok),
638                                             0,
639                                             SLAB_HWCACHE_ALIGN,
640                                             NULL);
641                 if (!asd_dma_token_cache) {
642                         asd_printk("couldn't create dma token cache\n");
643                         return -ENOMEM;
644                 }
645         }
646 
647         if (!asd_ascb_cache) {
648                 asd_ascb_cache = kmem_cache_create(ASD_DRIVER_NAME "_ascb",
649                                                    sizeof(struct asd_ascb),
650                                                    0,
651                                                    SLAB_HWCACHE_ALIGN,
652                                                    NULL);
653                 if (!asd_ascb_cache) {
654                         asd_printk("couldn't create ascb cache\n");
655                         goto Err;
656                 }
657         }
658 
659         return 0;
660 Err:
661         kmem_cache_destroy(asd_dma_token_cache);
662         asd_dma_token_cache = NULL;
663         return -ENOMEM;
664 }
665 
666 static void asd_destroy_global_caches(void)
667 {
668         if (asd_dma_token_cache)
669                 kmem_cache_destroy(asd_dma_token_cache);
670         asd_dma_token_cache = NULL;
671 
672         if (asd_ascb_cache)
673                 kmem_cache_destroy(asd_ascb_cache);
674         asd_ascb_cache = NULL;
675 }
676 
677 static int asd_register_sas_ha(struct asd_ha_struct *asd_ha)
678 {
679         int i;
680         struct asd_sas_phy   **sas_phys =
681                 kcalloc(ASD_MAX_PHYS, sizeof(*sas_phys), GFP_KERNEL);
682         struct asd_sas_port  **sas_ports =
683                 kcalloc(ASD_MAX_PHYS, sizeof(*sas_ports), GFP_KERNEL);
684 
685         if (!sas_phys || !sas_ports) {
686                 kfree(sas_phys);
687                 kfree(sas_ports);
688                 return -ENOMEM;
689         }
690 
691         asd_ha->sas_ha.sas_ha_name = (char *) asd_ha->name;
692         asd_ha->sas_ha.lldd_module = THIS_MODULE;
693         asd_ha->sas_ha.sas_addr = &asd_ha->hw_prof.sas_addr[0];
694 
695         for (i = 0; i < ASD_MAX_PHYS; i++) {
696                 sas_phys[i] = &asd_ha->phys[i].sas_phy;
697                 sas_ports[i] = &asd_ha->ports[i];
698         }
699 
700         asd_ha->sas_ha.sas_phy = sas_phys;
701         asd_ha->sas_ha.sas_port= sas_ports;
702         asd_ha->sas_ha.num_phys= ASD_MAX_PHYS;
703 
704         return sas_register_ha(&asd_ha->sas_ha);
705 }
706 
707 static int asd_unregister_sas_ha(struct asd_ha_struct *asd_ha)
708 {
709         int err;
710 
711         err = sas_unregister_ha(&asd_ha->sas_ha);
712 
713         sas_remove_host(asd_ha->sas_ha.core.shost);
714         scsi_remove_host(asd_ha->sas_ha.core.shost);
715         scsi_host_put(asd_ha->sas_ha.core.shost);
716 
717         kfree(asd_ha->sas_ha.sas_phy);
718         kfree(asd_ha->sas_ha.sas_port);
719 
720         return err;
721 }
722 
723 static int asd_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)
724 {
725         const struct asd_pcidev_struct *asd_dev;
726         unsigned asd_id = (unsigned) id->driver_data;
727         struct asd_ha_struct *asd_ha;
728         struct Scsi_Host *shost;
729         int err;
730 
731         if (asd_id >= ARRAY_SIZE(asd_pcidev_data)) {
732                 asd_printk("wrong driver_data in PCI table\n");
733                 return -ENODEV;
734         }
735 
736         if ((err = pci_enable_device(dev))) {
737                 asd_printk("couldn't enable device %s\n", pci_name(dev));
738                 return err;
739         }
740 
741         pci_set_master(dev);
742 
743         err = -ENOMEM;
744 
745         shost = scsi_host_alloc(&aic94xx_sht, sizeof(void *));
746         if (!shost)
747                 goto Err;
748 
749         asd_dev = &asd_pcidev_data[asd_id];
750 
751         asd_ha = kzalloc(sizeof(*asd_ha), GFP_KERNEL);
752         if (!asd_ha) {
753                 asd_printk("out of memory\n");
754                 goto Err_put;
755         }
756         asd_ha->pcidev = dev;
757         asd_ha->sas_ha.dev = &asd_ha->pcidev->dev;
758         asd_ha->sas_ha.lldd_ha = asd_ha;
759 
760         asd_ha->bios_status = FLASH_OK;
761         asd_ha->name = asd_dev->name;
762         asd_printk("found %s, device %s\n", asd_ha->name, pci_name(dev));
763 
764         SHOST_TO_SAS_HA(shost) = &asd_ha->sas_ha;
765         asd_ha->sas_ha.core.shost = shost;
766         shost->transportt = aic94xx_transport_template;
767         shost->max_id = ~0;
768         shost->max_lun = ~0;
769         shost->max_cmd_len = 16;
770 
771         err = scsi_add_host(shost, &dev->dev);
772         if (err)
773                 goto Err_free;
774 
775         err = asd_dev->setup(asd_ha);
776         if (err)
777                 goto Err_remove;
778 
779         err = -ENODEV;
780         if (!pci_set_dma_mask(dev, DMA_BIT_MASK(64))
781             && !pci_set_consistent_dma_mask(dev, DMA_BIT_MASK(64)))
782                 ;
783         else if (!pci_set_dma_mask(dev, DMA_BIT_MASK(32))
784                  && !pci_set_consistent_dma_mask(dev, DMA_BIT_MASK(32)))
785                 ;
786         else {
787                 asd_printk("no suitable DMA mask for %s\n", pci_name(dev));
788                 goto Err_remove;
789         }
790 
791         pci_set_drvdata(dev, asd_ha);
792 
793         err = asd_map_ha(asd_ha);
794         if (err)
795                 goto Err_remove;
796 
797         err = asd_create_ha_caches(asd_ha);
798         if (err)
799                 goto Err_unmap;
800 
801         err = asd_init_hw(asd_ha);
802         if (err)
803                 goto Err_free_cache;
804 
805         asd_printk("device %s: SAS addr %llx, PCBA SN %s, %d phys, %d enabled "
806                    "phys, flash %s, BIOS %s%d\n",
807                    pci_name(dev), SAS_ADDR(asd_ha->hw_prof.sas_addr),
808                    asd_ha->hw_prof.pcba_sn, asd_ha->hw_prof.max_phys,
809                    asd_ha->hw_prof.num_phys,
810                    asd_ha->hw_prof.flash.present ? "present" : "not present",
811                    asd_ha->hw_prof.bios.present ? "build " : "not present",
812                    asd_ha->hw_prof.bios.bld);
813 
814         shost->can_queue = asd_ha->seq.can_queue;
815 
816         if (use_msi)
817                 pci_enable_msi(asd_ha->pcidev);
818 
819         err = request_irq(asd_ha->pcidev->irq, asd_hw_isr, IRQF_SHARED,
820                           ASD_DRIVER_NAME, asd_ha);
821         if (err) {
822                 asd_printk("couldn't get irq %d for %s\n",
823                            asd_ha->pcidev->irq, pci_name(asd_ha->pcidev));
824                 goto Err_irq;
825         }
826         asd_enable_ints(asd_ha);
827 
828         err = asd_init_post_escbs(asd_ha);
829         if (err) {
830                 asd_printk("couldn't post escbs for %s\n",
831                            pci_name(asd_ha->pcidev));
832                 goto Err_escbs;
833         }
834         ASD_DPRINTK("escbs posted\n");
835 
836         err = asd_create_dev_attrs(asd_ha);
837         if (err)
838                 goto Err_dev_attrs;
839 
840         err = asd_register_sas_ha(asd_ha);
841         if (err)
842                 goto Err_reg_sas;
843 
844         scsi_scan_host(shost);
845 
846         return 0;
847 
848 Err_reg_sas:
849         asd_remove_dev_attrs(asd_ha);
850 Err_dev_attrs:
851 Err_escbs:
852         asd_disable_ints(asd_ha);
853         free_irq(dev->irq, asd_ha);
854 Err_irq:
855         if (use_msi)
856                 pci_disable_msi(dev);
857         asd_chip_hardrst(asd_ha);
858 Err_free_cache:
859         asd_destroy_ha_caches(asd_ha);
860 Err_unmap:
861         asd_unmap_ha(asd_ha);
862 Err_remove:
863         scsi_remove_host(shost);
864 Err_free:
865         kfree(asd_ha);
866 Err_put:
867         scsi_host_put(shost);
868 Err:
869         pci_disable_device(dev);
870         return err;
871 }
872 
873 static void asd_free_queues(struct asd_ha_struct *asd_ha)
874 {
875         unsigned long flags;
876         LIST_HEAD(pending);
877         struct list_head *n, *pos;
878 
879         spin_lock_irqsave(&asd_ha->seq.pend_q_lock, flags);
880         asd_ha->seq.pending = 0;
881         list_splice_init(&asd_ha->seq.pend_q, &pending);
882         spin_unlock_irqrestore(&asd_ha->seq.pend_q_lock, flags);
883 
884         if (!list_empty(&pending))
885                 ASD_DPRINTK("Uh-oh! Pending is not empty!\n");
886 
887         list_for_each_safe(pos, n, &pending) {
888                 struct asd_ascb *ascb = list_entry(pos, struct asd_ascb, list);
889                 /*
890                  * Delete unexpired ascb timers.  This may happen if we issue
891                  * a CONTROL PHY scb to an adapter and rmmod before the scb
892                  * times out.  Apparently we don't wait for the CONTROL PHY
893                  * to complete, so it doesn't matter if we kill the timer.
894                  */
895                 del_timer_sync(&ascb->timer);
896                 WARN_ON(ascb->scb->header.opcode != CONTROL_PHY);
897 
898                 list_del_init(pos);
899                 ASD_DPRINTK("freeing from pending\n");
900                 asd_ascb_free(ascb);
901         }
902 }
903 
904 static void asd_turn_off_leds(struct asd_ha_struct *asd_ha)
905 {
906         u8 phy_mask = asd_ha->hw_prof.enabled_phys;
907         u8 i;
908 
909         for_each_phy(phy_mask, phy_mask, i) {
910                 asd_turn_led(asd_ha, i, 0);
911                 asd_control_led(asd_ha, i, 0);
912         }
913 }
914 
915 static void asd_pci_remove(struct pci_dev *dev)
916 {
917         struct asd_ha_struct *asd_ha = pci_get_drvdata(dev);
918 
919         if (!asd_ha)
920                 return;
921 
922         asd_unregister_sas_ha(asd_ha);
923 
924         asd_disable_ints(asd_ha);
925 
926         asd_remove_dev_attrs(asd_ha);
927 
928         /* XXX more here as needed */
929 
930         free_irq(dev->irq, asd_ha);
931         if (use_msi)
932                 pci_disable_msi(asd_ha->pcidev);
933         asd_turn_off_leds(asd_ha);
934         asd_chip_hardrst(asd_ha);
935         asd_free_queues(asd_ha);
936         asd_destroy_ha_caches(asd_ha);
937         asd_unmap_ha(asd_ha);
938         kfree(asd_ha);
939         pci_disable_device(dev);
940         return;
941 }
942 
943 static void asd_scan_start(struct Scsi_Host *shost)
944 {
945         struct asd_ha_struct *asd_ha;
946         int err;
947 
948         asd_ha = SHOST_TO_SAS_HA(shost)->lldd_ha;
949         err = asd_enable_phys(asd_ha, asd_ha->hw_prof.enabled_phys);
950         if (err)
951                 asd_printk("Couldn't enable phys, err:%d\n", err);
952 }
953 
954 static int asd_scan_finished(struct Scsi_Host *shost, unsigned long time)
955 {
956         /* give the phy enabling interrupt event time to come in (1s
957          * is empirically about all it takes) */
958         if (time < HZ)
959                 return 0;
960         /* Wait for discovery to finish */
961         sas_drain_work(SHOST_TO_SAS_HA(shost));
962         return 1;
963 }
964 
965 static ssize_t asd_version_show(struct device_driver *driver, char *buf)
966 {
967         return snprintf(buf, PAGE_SIZE, "%s\n", ASD_DRIVER_VERSION);
968 }
969 static DRIVER_ATTR(version, S_IRUGO, asd_version_show, NULL);
970 
971 static int asd_create_driver_attrs(struct device_driver *driver)
972 {
973         return driver_create_file(driver, &driver_attr_version);
974 }
975 
976 static void asd_remove_driver_attrs(struct device_driver *driver)
977 {
978         driver_remove_file(driver, &driver_attr_version);
979 }
980 
981 static struct sas_domain_function_template aic94xx_transport_functions = {
982         .lldd_dev_found         = asd_dev_found,
983         .lldd_dev_gone          = asd_dev_gone,
984 
985         .lldd_execute_task      = asd_execute_task,
986 
987         .lldd_abort_task        = asd_abort_task,
988         .lldd_abort_task_set    = asd_abort_task_set,
989         .lldd_clear_aca         = asd_clear_aca,
990         .lldd_clear_task_set    = asd_clear_task_set,
991         .lldd_I_T_nexus_reset   = asd_I_T_nexus_reset,
992         .lldd_lu_reset          = asd_lu_reset,
993         .lldd_query_task        = asd_query_task,
994 
995         .lldd_clear_nexus_port  = asd_clear_nexus_port,
996         .lldd_clear_nexus_ha    = asd_clear_nexus_ha,
997 
998         .lldd_control_phy       = asd_control_phy,
999 
1000         .lldd_ata_set_dmamode   = asd_set_dmamode,
1001 };
1002 
1003 static const struct pci_device_id aic94xx_pci_table[] = {
1004         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x410),0, 0, 1},
1005         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x412),0, 0, 1},
1006         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x416),0, 0, 1},
1007         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x41E),0, 0, 1},
1008         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x41F),0, 0, 1},
1009         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x430),0, 0, 2},
1010         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x432),0, 0, 2},
1011         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x43E),0, 0, 2},
1012         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x43F),0, 0, 2},
1013         {}
1014 };
1015 
1016 MODULE_DEVICE_TABLE(pci, aic94xx_pci_table);
1017 
1018 static struct pci_driver aic94xx_pci_driver = {
1019         .name           = ASD_DRIVER_NAME,
1020         .id_table       = aic94xx_pci_table,
1021         .probe          = asd_pci_probe,
1022         .remove         = asd_pci_remove,
1023 };
1024 
1025 static int __init aic94xx_init(void)
1026 {
1027         int err;
1028 
1029 
1030         asd_printk("%s version %s loaded\n", ASD_DRIVER_DESCRIPTION,
1031                    ASD_DRIVER_VERSION);
1032 
1033         err = asd_create_global_caches();
1034         if (err)
1035                 return err;
1036 
1037         aic94xx_transport_template =
1038                 sas_domain_attach_transport(&aic94xx_transport_functions);
1039         if (!aic94xx_transport_template)
1040                 goto out_destroy_caches;
1041 
1042         err = pci_register_driver(&aic94xx_pci_driver);
1043         if (err)
1044                 goto out_release_transport;
1045 
1046         err = asd_create_driver_attrs(&aic94xx_pci_driver.driver);
1047         if (err)
1048                 goto out_unregister_pcidrv;
1049 
1050         return err;
1051 
1052  out_unregister_pcidrv:
1053         pci_unregister_driver(&aic94xx_pci_driver);
1054  out_release_transport:
1055         sas_release_transport(aic94xx_transport_template);
1056  out_destroy_caches:
1057         asd_destroy_global_caches();
1058 
1059         return err;
1060 }
1061 
1062 static void __exit aic94xx_exit(void)
1063 {
1064         asd_remove_driver_attrs(&aic94xx_pci_driver.driver);
1065         pci_unregister_driver(&aic94xx_pci_driver);
1066         sas_release_transport(aic94xx_transport_template);
1067         asd_release_firmware();
1068         asd_destroy_global_caches();
1069         asd_printk("%s version %s unloaded\n", ASD_DRIVER_DESCRIPTION,
1070                    ASD_DRIVER_VERSION);
1071 }
1072 
1073 module_init(aic94xx_init);
1074 module_exit(aic94xx_exit);
1075 
1076 MODULE_AUTHOR("Luben Tuikov <luben_tuikov@adaptec.com>");
1077 MODULE_DESCRIPTION(ASD_DRIVER_DESCRIPTION);
1078 MODULE_LICENSE("GPL v2");
1079 MODULE_VERSION(ASD_DRIVER_VERSION);
1080 

This page was automatically generated by LXR 0.3.1 (source).  •  Linux is a registered trademark of Linus Torvalds  •  Contact us