Version:  2.0.40 2.2.26 2.4.37 3.3 3.4 3.5 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

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         .cmd_per_lun            = 1,
 69         .this_id                = -1,
 70         .sg_tablesize           = SG_ALL,
 71         .max_sectors            = SCSI_DEFAULT_MAX_SECTORS,
 72         .use_clustering         = ENABLE_CLUSTERING,
 73         .eh_device_reset_handler        = sas_eh_device_reset_handler,
 74         .eh_bus_reset_handler   = sas_eh_bus_reset_handler,
 75         .target_destroy         = sas_target_destroy,
 76         .ioctl                  = sas_ioctl,
 77         .use_blk_tags           = 1,
 78         .track_queue_depth      = 1,
 79 };
 80 
 81 static int asd_map_memio(struct asd_ha_struct *asd_ha)
 82 {
 83         int err, i;
 84         struct asd_ha_addrspace *io_handle;
 85 
 86         asd_ha->iospace = 0;
 87         for (i = 0; i < 3; i += 2) {
 88                 io_handle = &asd_ha->io_handle[i==0?0:1];
 89                 io_handle->start = pci_resource_start(asd_ha->pcidev, i);
 90                 io_handle->len   = pci_resource_len(asd_ha->pcidev, i);
 91                 io_handle->flags = pci_resource_flags(asd_ha->pcidev, i);
 92                 err = -ENODEV;
 93                 if (!io_handle->start || !io_handle->len) {
 94                         asd_printk("MBAR%d start or length for %s is 0.\n",
 95                                    i==0?0:1, pci_name(asd_ha->pcidev));
 96                         goto Err;
 97                 }
 98                 err = pci_request_region(asd_ha->pcidev, i, ASD_DRIVER_NAME);
 99                 if (err) {
100                         asd_printk("couldn't reserve memory region for %s\n",
101                                    pci_name(asd_ha->pcidev));
102                         goto Err;
103                 }
104                 if (io_handle->flags & IORESOURCE_CACHEABLE)
105                         io_handle->addr = ioremap(io_handle->start,
106                                                   io_handle->len);
107                 else
108                         io_handle->addr = ioremap_nocache(io_handle->start,
109                                                           io_handle->len);
110                 if (!io_handle->addr) {
111                         asd_printk("couldn't map MBAR%d of %s\n", i==0?0:1,
112                                    pci_name(asd_ha->pcidev));
113                         goto Err_unreq;
114                 }
115         }
116 
117         return 0;
118 Err_unreq:
119         pci_release_region(asd_ha->pcidev, i);
120 Err:
121         if (i > 0) {
122                 io_handle = &asd_ha->io_handle[0];
123                 iounmap(io_handle->addr);
124                 pci_release_region(asd_ha->pcidev, 0);
125         }
126         return err;
127 }
128 
129 static void asd_unmap_memio(struct asd_ha_struct *asd_ha)
130 {
131         struct asd_ha_addrspace *io_handle;
132 
133         io_handle = &asd_ha->io_handle[1];
134         iounmap(io_handle->addr);
135         pci_release_region(asd_ha->pcidev, 2);
136 
137         io_handle = &asd_ha->io_handle[0];
138         iounmap(io_handle->addr);
139         pci_release_region(asd_ha->pcidev, 0);
140 }
141 
142 static int asd_map_ioport(struct asd_ha_struct *asd_ha)
143 {
144         int i = PCI_IOBAR_OFFSET, err;
145         struct asd_ha_addrspace *io_handle = &asd_ha->io_handle[0];
146 
147         asd_ha->iospace = 1;
148         io_handle->start = pci_resource_start(asd_ha->pcidev, i);
149         io_handle->len   = pci_resource_len(asd_ha->pcidev, i);
150         io_handle->flags = pci_resource_flags(asd_ha->pcidev, i);
151         io_handle->addr  = (void __iomem *) io_handle->start;
152         if (!io_handle->start || !io_handle->len) {
153                 asd_printk("couldn't get IO ports for %s\n",
154                            pci_name(asd_ha->pcidev));
155                 return -ENODEV;
156         }
157         err = pci_request_region(asd_ha->pcidev, i, ASD_DRIVER_NAME);
158         if (err) {
159                 asd_printk("couldn't reserve io space for %s\n",
160                            pci_name(asd_ha->pcidev));
161         }
162 
163         return err;
164 }
165 
166 static void asd_unmap_ioport(struct asd_ha_struct *asd_ha)
167 {
168         pci_release_region(asd_ha->pcidev, PCI_IOBAR_OFFSET);
169 }
170 
171 static int asd_map_ha(struct asd_ha_struct *asd_ha)
172 {
173         int err;
174         u16 cmd_reg;
175 
176         err = pci_read_config_word(asd_ha->pcidev, PCI_COMMAND, &cmd_reg);
177         if (err) {
178                 asd_printk("couldn't read command register of %s\n",
179                            pci_name(asd_ha->pcidev));
180                 goto Err;
181         }
182 
183         err = -ENODEV;
184         if (cmd_reg & PCI_COMMAND_MEMORY) {
185                 if ((err = asd_map_memio(asd_ha)))
186                         goto Err;
187         } else if (cmd_reg & PCI_COMMAND_IO) {
188                 if ((err = asd_map_ioport(asd_ha)))
189                         goto Err;
190                 asd_printk("%s ioport mapped -- upgrade your hardware\n",
191                            pci_name(asd_ha->pcidev));
192         } else {
193                 asd_printk("no proper device access to %s\n",
194                            pci_name(asd_ha->pcidev));
195                 goto Err;
196         }
197 
198         return 0;
199 Err:
200         return err;
201 }
202 
203 static void asd_unmap_ha(struct asd_ha_struct *asd_ha)
204 {
205         if (asd_ha->iospace)
206                 asd_unmap_ioport(asd_ha);
207         else
208                 asd_unmap_memio(asd_ha);
209 }
210 
211 static const char *asd_dev_rev[30] = {
212         [0] = "A0",
213         [1] = "A1",
214         [8] = "B0",
215 };
216 
217 static int asd_common_setup(struct asd_ha_struct *asd_ha)
218 {
219         int err, i;
220 
221         asd_ha->revision_id = asd_ha->pcidev->revision;
222 
223         err = -ENODEV;
224         if (asd_ha->revision_id < AIC9410_DEV_REV_B0) {
225                 asd_printk("%s is revision %s (%X), which is not supported\n",
226                            pci_name(asd_ha->pcidev),
227                            asd_dev_rev[asd_ha->revision_id],
228                            asd_ha->revision_id);
229                 goto Err;
230         }
231         /* Provide some sane default values. */
232         asd_ha->hw_prof.max_scbs = 512;
233         asd_ha->hw_prof.max_ddbs = ASD_MAX_DDBS;
234         asd_ha->hw_prof.num_phys = ASD_MAX_PHYS;
235         /* All phys are enabled, by default. */
236         asd_ha->hw_prof.enabled_phys = 0xFF;
237         for (i = 0; i < ASD_MAX_PHYS; i++) {
238                 asd_ha->hw_prof.phy_desc[i].max_sas_lrate =
239                         SAS_LINK_RATE_3_0_GBPS;
240                 asd_ha->hw_prof.phy_desc[i].min_sas_lrate =
241                         SAS_LINK_RATE_1_5_GBPS;
242                 asd_ha->hw_prof.phy_desc[i].max_sata_lrate =
243                         SAS_LINK_RATE_1_5_GBPS;
244                 asd_ha->hw_prof.phy_desc[i].min_sata_lrate =
245                         SAS_LINK_RATE_1_5_GBPS;
246         }
247 
248         return 0;
249 Err:
250         return err;
251 }
252 
253 static int asd_aic9410_setup(struct asd_ha_struct *asd_ha)
254 {
255         int err = asd_common_setup(asd_ha);
256 
257         if (err)
258                 return err;
259 
260         asd_ha->hw_prof.addr_range = 8;
261         asd_ha->hw_prof.port_name_base = 0;
262         asd_ha->hw_prof.dev_name_base = 8;
263         asd_ha->hw_prof.sata_name_base = 16;
264 
265         return 0;
266 }
267 
268 static int asd_aic9405_setup(struct asd_ha_struct *asd_ha)
269 {
270         int err = asd_common_setup(asd_ha);
271 
272         if (err)
273                 return err;
274 
275         asd_ha->hw_prof.addr_range = 4;
276         asd_ha->hw_prof.port_name_base = 0;
277         asd_ha->hw_prof.dev_name_base = 4;
278         asd_ha->hw_prof.sata_name_base = 8;
279 
280         return 0;
281 }
282 
283 static ssize_t asd_show_dev_rev(struct device *dev,
284                                 struct device_attribute *attr, char *buf)
285 {
286         struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev);
287         return snprintf(buf, PAGE_SIZE, "%s\n",
288                         asd_dev_rev[asd_ha->revision_id]);
289 }
290 static DEVICE_ATTR(revision, S_IRUGO, asd_show_dev_rev, NULL);
291 
292 static ssize_t asd_show_dev_bios_build(struct device *dev,
293                                        struct device_attribute *attr,char *buf)
294 {
295         struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev);
296         return snprintf(buf, PAGE_SIZE, "%d\n", asd_ha->hw_prof.bios.bld);
297 }
298 static DEVICE_ATTR(bios_build, S_IRUGO, asd_show_dev_bios_build, NULL);
299 
300 static ssize_t asd_show_dev_pcba_sn(struct device *dev,
301                                     struct device_attribute *attr, char *buf)
302 {
303         struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev);
304         return snprintf(buf, PAGE_SIZE, "%s\n", asd_ha->hw_prof.pcba_sn);
305 }
306 static DEVICE_ATTR(pcba_sn, S_IRUGO, asd_show_dev_pcba_sn, NULL);
307 
308 #define FLASH_CMD_NONE      0x00
309 #define FLASH_CMD_UPDATE    0x01
310 #define FLASH_CMD_VERIFY    0x02
311 
312 struct flash_command {
313      u8      command[8];
314      int     code;
315 };
316 
317 static struct flash_command flash_command_table[] =
318 {
319      {"verify",      FLASH_CMD_VERIFY},
320      {"update",      FLASH_CMD_UPDATE},
321      {"",            FLASH_CMD_NONE}      /* Last entry should be NULL. */
322 };
323 
324 struct error_bios {
325      char    *reason;
326      int     err_code;
327 };
328 
329 static struct error_bios flash_error_table[] =
330 {
331      {"Failed to open bios image file",      FAIL_OPEN_BIOS_FILE},
332      {"PCI ID mismatch",                     FAIL_CHECK_PCI_ID},
333      {"Checksum mismatch",                   FAIL_CHECK_SUM},
334      {"Unknown Error",                       FAIL_UNKNOWN},
335      {"Failed to verify.",                   FAIL_VERIFY},
336      {"Failed to reset flash chip.",         FAIL_RESET_FLASH},
337      {"Failed to find flash chip type.",     FAIL_FIND_FLASH_ID},
338      {"Failed to erash flash chip.",         FAIL_ERASE_FLASH},
339      {"Failed to program flash chip.",       FAIL_WRITE_FLASH},
340      {"Flash in progress",                   FLASH_IN_PROGRESS},
341      {"Image file size Error",               FAIL_FILE_SIZE},
342      {"Input parameter error",               FAIL_PARAMETERS},
343      {"Out of memory",                       FAIL_OUT_MEMORY},
344      {"OK", 0}  /* Last entry err_code = 0. */
345 };
346 
347 static ssize_t asd_store_update_bios(struct device *dev,
348         struct device_attribute *attr,
349         const char *buf, size_t count)
350 {
351         struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev);
352         char *cmd_ptr, *filename_ptr;
353         struct bios_file_header header, *hdr_ptr;
354         int res, i;
355         u32 csum = 0;
356         int flash_command = FLASH_CMD_NONE;
357         int err = 0;
358 
359         cmd_ptr = kzalloc(count*2, GFP_KERNEL);
360 
361         if (!cmd_ptr) {
362                 err = FAIL_OUT_MEMORY;
363                 goto out;
364         }
365 
366         filename_ptr = cmd_ptr + count;
367         res = sscanf(buf, "%s %s", cmd_ptr, filename_ptr);
368         if (res != 2) {
369                 err = FAIL_PARAMETERS;
370                 goto out1;
371         }
372 
373         for (i = 0; flash_command_table[i].code != FLASH_CMD_NONE; i++) {
374                 if (!memcmp(flash_command_table[i].command,
375                                  cmd_ptr, strlen(cmd_ptr))) {
376                         flash_command = flash_command_table[i].code;
377                         break;
378                 }
379         }
380         if (flash_command == FLASH_CMD_NONE) {
381                 err = FAIL_PARAMETERS;
382                 goto out1;
383         }
384 
385         if (asd_ha->bios_status == FLASH_IN_PROGRESS) {
386                 err = FLASH_IN_PROGRESS;
387                 goto out1;
388         }
389         err = request_firmware(&asd_ha->bios_image,
390                                    filename_ptr,
391                                    &asd_ha->pcidev->dev);
392         if (err) {
393                 asd_printk("Failed to load bios image file %s, error %d\n",
394                            filename_ptr, err);
395                 err = FAIL_OPEN_BIOS_FILE;
396                 goto out1;
397         }
398 
399         hdr_ptr = (struct bios_file_header *)asd_ha->bios_image->data;
400 
401         if ((hdr_ptr->contrl_id.vendor != asd_ha->pcidev->vendor ||
402                 hdr_ptr->contrl_id.device != asd_ha->pcidev->device) &&
403                 (hdr_ptr->contrl_id.sub_vendor != asd_ha->pcidev->vendor ||
404                 hdr_ptr->contrl_id.sub_device != asd_ha->pcidev->device)) {
405 
406                 ASD_DPRINTK("The PCI vendor or device id does not match\n");
407                 ASD_DPRINTK("vendor=%x dev=%x sub_vendor=%x sub_dev=%x"
408                 " pci vendor=%x pci dev=%x\n",
409                 hdr_ptr->contrl_id.vendor,
410                 hdr_ptr->contrl_id.device,
411                 hdr_ptr->contrl_id.sub_vendor,
412                 hdr_ptr->contrl_id.sub_device,
413                 asd_ha->pcidev->vendor,
414                 asd_ha->pcidev->device);
415                 err = FAIL_CHECK_PCI_ID;
416                 goto out2;
417         }
418 
419         if (hdr_ptr->filelen != asd_ha->bios_image->size) {
420                 err = FAIL_FILE_SIZE;
421                 goto out2;
422         }
423 
424         /* calculate checksum */
425         for (i = 0; i < hdr_ptr->filelen; i++)
426                 csum += asd_ha->bios_image->data[i];
427 
428         if ((csum & 0x0000ffff) != hdr_ptr->checksum) {
429                 ASD_DPRINTK("BIOS file checksum mismatch\n");
430                 err = FAIL_CHECK_SUM;
431                 goto out2;
432         }
433         if (flash_command == FLASH_CMD_UPDATE) {
434                 asd_ha->bios_status = FLASH_IN_PROGRESS;
435                 err = asd_write_flash_seg(asd_ha,
436                         &asd_ha->bios_image->data[sizeof(*hdr_ptr)],
437                         0, hdr_ptr->filelen-sizeof(*hdr_ptr));
438                 if (!err)
439                         err = asd_verify_flash_seg(asd_ha,
440                                 &asd_ha->bios_image->data[sizeof(*hdr_ptr)],
441                                 0, hdr_ptr->filelen-sizeof(*hdr_ptr));
442         } else {
443                 asd_ha->bios_status = FLASH_IN_PROGRESS;
444                 err = asd_verify_flash_seg(asd_ha,
445                         &asd_ha->bios_image->data[sizeof(header)],
446                         0, hdr_ptr->filelen-sizeof(header));
447         }
448 
449 out2:
450         release_firmware(asd_ha->bios_image);
451 out1:
452         kfree(cmd_ptr);
453 out:
454         asd_ha->bios_status = err;
455 
456         if (!err)
457                 return count;
458         else
459                 return -err;
460 }
461 
462 static ssize_t asd_show_update_bios(struct device *dev,
463                                     struct device_attribute *attr, char *buf)
464 {
465         int i;
466         struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev);
467 
468         for (i = 0; flash_error_table[i].err_code != 0; i++) {
469                 if (flash_error_table[i].err_code == asd_ha->bios_status)
470                         break;
471         }
472         if (asd_ha->bios_status != FLASH_IN_PROGRESS)
473                 asd_ha->bios_status = FLASH_OK;
474 
475         return snprintf(buf, PAGE_SIZE, "status=%x %s\n",
476                         flash_error_table[i].err_code,
477                         flash_error_table[i].reason);
478 }
479 
480 static DEVICE_ATTR(update_bios, S_IRUGO|S_IWUSR,
481         asd_show_update_bios, asd_store_update_bios);
482 
483 static int asd_create_dev_attrs(struct asd_ha_struct *asd_ha)
484 {
485         int err;
486 
487         err = device_create_file(&asd_ha->pcidev->dev, &dev_attr_revision);
488         if (err)
489                 return err;
490 
491         err = device_create_file(&asd_ha->pcidev->dev, &dev_attr_bios_build);
492         if (err)
493                 goto err_rev;
494 
495         err = device_create_file(&asd_ha->pcidev->dev, &dev_attr_pcba_sn);
496         if (err)
497                 goto err_biosb;
498         err = device_create_file(&asd_ha->pcidev->dev, &dev_attr_update_bios);
499         if (err)
500                 goto err_update_bios;
501 
502         return 0;
503 
504 err_update_bios:
505         device_remove_file(&asd_ha->pcidev->dev, &dev_attr_pcba_sn);
506 err_biosb:
507         device_remove_file(&asd_ha->pcidev->dev, &dev_attr_bios_build);
508 err_rev:
509         device_remove_file(&asd_ha->pcidev->dev, &dev_attr_revision);
510         return err;
511 }
512 
513 static void asd_remove_dev_attrs(struct asd_ha_struct *asd_ha)
514 {
515         device_remove_file(&asd_ha->pcidev->dev, &dev_attr_revision);
516         device_remove_file(&asd_ha->pcidev->dev, &dev_attr_bios_build);
517         device_remove_file(&asd_ha->pcidev->dev, &dev_attr_pcba_sn);
518         device_remove_file(&asd_ha->pcidev->dev, &dev_attr_update_bios);
519 }
520 
521 /* The first entry, 0, is used for dynamic ids, the rest for devices
522  * we know about.
523  */
524 static const struct asd_pcidev_struct {
525         const char * name;
526         int (*setup)(struct asd_ha_struct *asd_ha);
527 } asd_pcidev_data[] = {
528         /* Id 0 is used for dynamic ids. */
529         { .name  = "Adaptec AIC-94xx SAS/SATA Host Adapter",
530           .setup = asd_aic9410_setup
531         },
532         { .name  = "Adaptec AIC-9410W SAS/SATA Host Adapter",
533           .setup = asd_aic9410_setup
534         },
535         { .name  = "Adaptec AIC-9405W SAS/SATA Host Adapter",
536           .setup = asd_aic9405_setup
537         },
538 };
539 
540 static int asd_create_ha_caches(struct asd_ha_struct *asd_ha)
541 {
542         asd_ha->scb_pool = dma_pool_create(ASD_DRIVER_NAME "_scb_pool",
543                                            &asd_ha->pcidev->dev,
544                                            sizeof(struct scb),
545                                            8, 0);
546         if (!asd_ha->scb_pool) {
547                 asd_printk("couldn't create scb pool\n");
548                 return -ENOMEM;
549         }
550 
551         return 0;
552 }
553 
554 /**
555  * asd_free_edbs -- free empty data buffers
556  * asd_ha: pointer to host adapter structure
557  */
558 static void asd_free_edbs(struct asd_ha_struct *asd_ha)
559 {
560         struct asd_seq_data *seq = &asd_ha->seq;
561         int i;
562 
563         for (i = 0; i < seq->num_edbs; i++)
564                 asd_free_coherent(asd_ha, seq->edb_arr[i]);
565         kfree(seq->edb_arr);
566         seq->edb_arr = NULL;
567 }
568 
569 static void asd_free_escbs(struct asd_ha_struct *asd_ha)
570 {
571         struct asd_seq_data *seq = &asd_ha->seq;
572         int i;
573 
574         for (i = 0; i < seq->num_escbs; i++) {
575                 if (!list_empty(&seq->escb_arr[i]->list))
576                         list_del_init(&seq->escb_arr[i]->list);
577 
578                 asd_ascb_free(seq->escb_arr[i]);
579         }
580         kfree(seq->escb_arr);
581         seq->escb_arr = NULL;
582 }
583 
584 static void asd_destroy_ha_caches(struct asd_ha_struct *asd_ha)
585 {
586         int i;
587 
588         if (asd_ha->hw_prof.ddb_ext)
589                 asd_free_coherent(asd_ha, asd_ha->hw_prof.ddb_ext);
590         if (asd_ha->hw_prof.scb_ext)
591                 asd_free_coherent(asd_ha, asd_ha->hw_prof.scb_ext);
592 
593         if (asd_ha->hw_prof.ddb_bitmap)
594                 kfree(asd_ha->hw_prof.ddb_bitmap);
595         asd_ha->hw_prof.ddb_bitmap = NULL;
596 
597         for (i = 0; i < ASD_MAX_PHYS; i++) {
598                 struct asd_phy *phy = &asd_ha->phys[i];
599 
600                 asd_free_coherent(asd_ha, phy->id_frm_tok);
601         }
602         if (asd_ha->seq.escb_arr)
603                 asd_free_escbs(asd_ha);
604         if (asd_ha->seq.edb_arr)
605                 asd_free_edbs(asd_ha);
606         if (asd_ha->hw_prof.ue.area) {
607                 kfree(asd_ha->hw_prof.ue.area);
608                 asd_ha->hw_prof.ue.area = NULL;
609         }
610         if (asd_ha->seq.tc_index_array) {
611                 kfree(asd_ha->seq.tc_index_array);
612                 kfree(asd_ha->seq.tc_index_bitmap);
613                 asd_ha->seq.tc_index_array = NULL;
614                 asd_ha->seq.tc_index_bitmap = NULL;
615         }
616         if (asd_ha->seq.actual_dl) {
617                         asd_free_coherent(asd_ha, asd_ha->seq.actual_dl);
618                         asd_ha->seq.actual_dl = NULL;
619                         asd_ha->seq.dl = NULL;
620         }
621         if (asd_ha->seq.next_scb.vaddr) {
622                 dma_pool_free(asd_ha->scb_pool, asd_ha->seq.next_scb.vaddr,
623                               asd_ha->seq.next_scb.dma_handle);
624                 asd_ha->seq.next_scb.vaddr = NULL;
625         }
626         dma_pool_destroy(asd_ha->scb_pool);
627         asd_ha->scb_pool = NULL;
628 }
629 
630 struct kmem_cache *asd_dma_token_cache;
631 struct kmem_cache *asd_ascb_cache;
632 
633 static int asd_create_global_caches(void)
634 {
635         if (!asd_dma_token_cache) {
636                 asd_dma_token_cache
637                         = kmem_cache_create(ASD_DRIVER_NAME "_dma_token",
638                                             sizeof(struct asd_dma_tok),
639                                             0,
640                                             SLAB_HWCACHE_ALIGN,
641                                             NULL);
642                 if (!asd_dma_token_cache) {
643                         asd_printk("couldn't create dma token cache\n");
644                         return -ENOMEM;
645                 }
646         }
647 
648         if (!asd_ascb_cache) {
649                 asd_ascb_cache = kmem_cache_create(ASD_DRIVER_NAME "_ascb",
650                                                    sizeof(struct asd_ascb),
651                                                    0,
652                                                    SLAB_HWCACHE_ALIGN,
653                                                    NULL);
654                 if (!asd_ascb_cache) {
655                         asd_printk("couldn't create ascb cache\n");
656                         goto Err;
657                 }
658         }
659 
660         return 0;
661 Err:
662         kmem_cache_destroy(asd_dma_token_cache);
663         asd_dma_token_cache = NULL;
664         return -ENOMEM;
665 }
666 
667 static void asd_destroy_global_caches(void)
668 {
669         if (asd_dma_token_cache)
670                 kmem_cache_destroy(asd_dma_token_cache);
671         asd_dma_token_cache = NULL;
672 
673         if (asd_ascb_cache)
674                 kmem_cache_destroy(asd_ascb_cache);
675         asd_ascb_cache = NULL;
676 }
677 
678 static int asd_register_sas_ha(struct asd_ha_struct *asd_ha)
679 {
680         int i;
681         struct asd_sas_phy   **sas_phys =
682                 kcalloc(ASD_MAX_PHYS, sizeof(*sas_phys), GFP_KERNEL);
683         struct asd_sas_port  **sas_ports =
684                 kcalloc(ASD_MAX_PHYS, sizeof(*sas_ports), GFP_KERNEL);
685 
686         if (!sas_phys || !sas_ports) {
687                 kfree(sas_phys);
688                 kfree(sas_ports);
689                 return -ENOMEM;
690         }
691 
692         asd_ha->sas_ha.sas_ha_name = (char *) asd_ha->name;
693         asd_ha->sas_ha.lldd_module = THIS_MODULE;
694         asd_ha->sas_ha.sas_addr = &asd_ha->hw_prof.sas_addr[0];
695 
696         for (i = 0; i < ASD_MAX_PHYS; i++) {
697                 sas_phys[i] = &asd_ha->phys[i].sas_phy;
698                 sas_ports[i] = &asd_ha->ports[i];
699         }
700 
701         asd_ha->sas_ha.sas_phy = sas_phys;
702         asd_ha->sas_ha.sas_port= sas_ports;
703         asd_ha->sas_ha.num_phys= ASD_MAX_PHYS;
704 
705         return sas_register_ha(&asd_ha->sas_ha);
706 }
707 
708 static int asd_unregister_sas_ha(struct asd_ha_struct *asd_ha)
709 {
710         int err;
711 
712         err = sas_unregister_ha(&asd_ha->sas_ha);
713 
714         sas_remove_host(asd_ha->sas_ha.core.shost);
715         scsi_remove_host(asd_ha->sas_ha.core.shost);
716         scsi_host_put(asd_ha->sas_ha.core.shost);
717 
718         kfree(asd_ha->sas_ha.sas_phy);
719         kfree(asd_ha->sas_ha.sas_port);
720 
721         return err;
722 }
723 
724 static int asd_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)
725 {
726         const struct asd_pcidev_struct *asd_dev;
727         unsigned asd_id = (unsigned) id->driver_data;
728         struct asd_ha_struct *asd_ha;
729         struct Scsi_Host *shost;
730         int err;
731 
732         if (asd_id >= ARRAY_SIZE(asd_pcidev_data)) {
733                 asd_printk("wrong driver_data in PCI table\n");
734                 return -ENODEV;
735         }
736 
737         if ((err = pci_enable_device(dev))) {
738                 asd_printk("couldn't enable device %s\n", pci_name(dev));
739                 return err;
740         }
741 
742         pci_set_master(dev);
743 
744         err = -ENOMEM;
745 
746         shost = scsi_host_alloc(&aic94xx_sht, sizeof(void *));
747         if (!shost)
748                 goto Err;
749 
750         asd_dev = &asd_pcidev_data[asd_id];
751 
752         asd_ha = kzalloc(sizeof(*asd_ha), GFP_KERNEL);
753         if (!asd_ha) {
754                 asd_printk("out of memory\n");
755                 goto Err_put;
756         }
757         asd_ha->pcidev = dev;
758         asd_ha->sas_ha.dev = &asd_ha->pcidev->dev;
759         asd_ha->sas_ha.lldd_ha = asd_ha;
760 
761         asd_ha->bios_status = FLASH_OK;
762         asd_ha->name = asd_dev->name;
763         asd_printk("found %s, device %s\n", asd_ha->name, pci_name(dev));
764 
765         SHOST_TO_SAS_HA(shost) = &asd_ha->sas_ha;
766         asd_ha->sas_ha.core.shost = shost;
767         shost->transportt = aic94xx_transport_template;
768         shost->max_id = ~0;
769         shost->max_lun = ~0;
770         shost->max_cmd_len = 16;
771 
772         err = scsi_add_host(shost, &dev->dev);
773         if (err)
774                 goto Err_free;
775 
776         err = asd_dev->setup(asd_ha);
777         if (err)
778                 goto Err_remove;
779 
780         err = -ENODEV;
781         if (!pci_set_dma_mask(dev, DMA_BIT_MASK(64))
782             && !pci_set_consistent_dma_mask(dev, DMA_BIT_MASK(64)))
783                 ;
784         else if (!pci_set_dma_mask(dev, DMA_BIT_MASK(32))
785                  && !pci_set_consistent_dma_mask(dev, DMA_BIT_MASK(32)))
786                 ;
787         else {
788                 asd_printk("no suitable DMA mask for %s\n", pci_name(dev));
789                 goto Err_remove;
790         }
791 
792         pci_set_drvdata(dev, asd_ha);
793 
794         err = asd_map_ha(asd_ha);
795         if (err)
796                 goto Err_remove;
797 
798         err = asd_create_ha_caches(asd_ha);
799         if (err)
800                 goto Err_unmap;
801 
802         err = asd_init_hw(asd_ha);
803         if (err)
804                 goto Err_free_cache;
805 
806         asd_printk("device %s: SAS addr %llx, PCBA SN %s, %d phys, %d enabled "
807                    "phys, flash %s, BIOS %s%d\n",
808                    pci_name(dev), SAS_ADDR(asd_ha->hw_prof.sas_addr),
809                    asd_ha->hw_prof.pcba_sn, asd_ha->hw_prof.max_phys,
810                    asd_ha->hw_prof.num_phys,
811                    asd_ha->hw_prof.flash.present ? "present" : "not present",
812                    asd_ha->hw_prof.bios.present ? "build " : "not present",
813                    asd_ha->hw_prof.bios.bld);
814 
815         shost->can_queue = asd_ha->seq.can_queue;
816 
817         if (use_msi)
818                 pci_enable_msi(asd_ha->pcidev);
819 
820         err = request_irq(asd_ha->pcidev->irq, asd_hw_isr, IRQF_SHARED,
821                           ASD_DRIVER_NAME, asd_ha);
822         if (err) {
823                 asd_printk("couldn't get irq %d for %s\n",
824                            asd_ha->pcidev->irq, pci_name(asd_ha->pcidev));
825                 goto Err_irq;
826         }
827         asd_enable_ints(asd_ha);
828 
829         err = asd_init_post_escbs(asd_ha);
830         if (err) {
831                 asd_printk("couldn't post escbs for %s\n",
832                            pci_name(asd_ha->pcidev));
833                 goto Err_escbs;
834         }
835         ASD_DPRINTK("escbs posted\n");
836 
837         err = asd_create_dev_attrs(asd_ha);
838         if (err)
839                 goto Err_dev_attrs;
840 
841         err = asd_register_sas_ha(asd_ha);
842         if (err)
843                 goto Err_reg_sas;
844 
845         scsi_scan_host(shost);
846 
847         return 0;
848 
849 Err_reg_sas:
850         asd_remove_dev_attrs(asd_ha);
851 Err_dev_attrs:
852 Err_escbs:
853         asd_disable_ints(asd_ha);
854         free_irq(dev->irq, asd_ha);
855 Err_irq:
856         if (use_msi)
857                 pci_disable_msi(dev);
858         asd_chip_hardrst(asd_ha);
859 Err_free_cache:
860         asd_destroy_ha_caches(asd_ha);
861 Err_unmap:
862         asd_unmap_ha(asd_ha);
863 Err_remove:
864         scsi_remove_host(shost);
865 Err_free:
866         kfree(asd_ha);
867 Err_put:
868         scsi_host_put(shost);
869 Err:
870         pci_disable_device(dev);
871         return err;
872 }
873 
874 static void asd_free_queues(struct asd_ha_struct *asd_ha)
875 {
876         unsigned long flags;
877         LIST_HEAD(pending);
878         struct list_head *n, *pos;
879 
880         spin_lock_irqsave(&asd_ha->seq.pend_q_lock, flags);
881         asd_ha->seq.pending = 0;
882         list_splice_init(&asd_ha->seq.pend_q, &pending);
883         spin_unlock_irqrestore(&asd_ha->seq.pend_q_lock, flags);
884 
885         if (!list_empty(&pending))
886                 ASD_DPRINTK("Uh-oh! Pending is not empty!\n");
887 
888         list_for_each_safe(pos, n, &pending) {
889                 struct asd_ascb *ascb = list_entry(pos, struct asd_ascb, list);
890                 /*
891                  * Delete unexpired ascb timers.  This may happen if we issue
892                  * a CONTROL PHY scb to an adapter and rmmod before the scb
893                  * times out.  Apparently we don't wait for the CONTROL PHY
894                  * to complete, so it doesn't matter if we kill the timer.
895                  */
896                 del_timer_sync(&ascb->timer);
897                 WARN_ON(ascb->scb->header.opcode != CONTROL_PHY);
898 
899                 list_del_init(pos);
900                 ASD_DPRINTK("freeing from pending\n");
901                 asd_ascb_free(ascb);
902         }
903 }
904 
905 static void asd_turn_off_leds(struct asd_ha_struct *asd_ha)
906 {
907         u8 phy_mask = asd_ha->hw_prof.enabled_phys;
908         u8 i;
909 
910         for_each_phy(phy_mask, phy_mask, i) {
911                 asd_turn_led(asd_ha, i, 0);
912                 asd_control_led(asd_ha, i, 0);
913         }
914 }
915 
916 static void asd_pci_remove(struct pci_dev *dev)
917 {
918         struct asd_ha_struct *asd_ha = pci_get_drvdata(dev);
919 
920         if (!asd_ha)
921                 return;
922 
923         asd_unregister_sas_ha(asd_ha);
924 
925         asd_disable_ints(asd_ha);
926 
927         asd_remove_dev_attrs(asd_ha);
928 
929         /* XXX more here as needed */
930 
931         free_irq(dev->irq, asd_ha);
932         if (use_msi)
933                 pci_disable_msi(asd_ha->pcidev);
934         asd_turn_off_leds(asd_ha);
935         asd_chip_hardrst(asd_ha);
936         asd_free_queues(asd_ha);
937         asd_destroy_ha_caches(asd_ha);
938         asd_unmap_ha(asd_ha);
939         kfree(asd_ha);
940         pci_disable_device(dev);
941         return;
942 }
943 
944 static void asd_scan_start(struct Scsi_Host *shost)
945 {
946         struct asd_ha_struct *asd_ha;
947         int err;
948 
949         asd_ha = SHOST_TO_SAS_HA(shost)->lldd_ha;
950         err = asd_enable_phys(asd_ha, asd_ha->hw_prof.enabled_phys);
951         if (err)
952                 asd_printk("Couldn't enable phys, err:%d\n", err);
953 }
954 
955 static int asd_scan_finished(struct Scsi_Host *shost, unsigned long time)
956 {
957         /* give the phy enabling interrupt event time to come in (1s
958          * is empirically about all it takes) */
959         if (time < HZ)
960                 return 0;
961         /* Wait for discovery to finish */
962         sas_drain_work(SHOST_TO_SAS_HA(shost));
963         return 1;
964 }
965 
966 static ssize_t asd_version_show(struct device_driver *driver, char *buf)
967 {
968         return snprintf(buf, PAGE_SIZE, "%s\n", ASD_DRIVER_VERSION);
969 }
970 static DRIVER_ATTR(version, S_IRUGO, asd_version_show, NULL);
971 
972 static int asd_create_driver_attrs(struct device_driver *driver)
973 {
974         return driver_create_file(driver, &driver_attr_version);
975 }
976 
977 static void asd_remove_driver_attrs(struct device_driver *driver)
978 {
979         driver_remove_file(driver, &driver_attr_version);
980 }
981 
982 static struct sas_domain_function_template aic94xx_transport_functions = {
983         .lldd_dev_found         = asd_dev_found,
984         .lldd_dev_gone          = asd_dev_gone,
985 
986         .lldd_execute_task      = asd_execute_task,
987 
988         .lldd_abort_task        = asd_abort_task,
989         .lldd_abort_task_set    = asd_abort_task_set,
990         .lldd_clear_aca         = asd_clear_aca,
991         .lldd_clear_task_set    = asd_clear_task_set,
992         .lldd_I_T_nexus_reset   = asd_I_T_nexus_reset,
993         .lldd_lu_reset          = asd_lu_reset,
994         .lldd_query_task        = asd_query_task,
995 
996         .lldd_clear_nexus_port  = asd_clear_nexus_port,
997         .lldd_clear_nexus_ha    = asd_clear_nexus_ha,
998 
999         .lldd_control_phy       = asd_control_phy,
1000 
1001         .lldd_ata_set_dmamode   = asd_set_dmamode,
1002 };
1003 
1004 static const struct pci_device_id aic94xx_pci_table[] = {
1005         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x410),0, 0, 1},
1006         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x412),0, 0, 1},
1007         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x416),0, 0, 1},
1008         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x41E),0, 0, 1},
1009         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x41F),0, 0, 1},
1010         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x430),0, 0, 2},
1011         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x432),0, 0, 2},
1012         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x43E),0, 0, 2},
1013         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x43F),0, 0, 2},
1014         {}
1015 };
1016 
1017 MODULE_DEVICE_TABLE(pci, aic94xx_pci_table);
1018 
1019 static struct pci_driver aic94xx_pci_driver = {
1020         .name           = ASD_DRIVER_NAME,
1021         .id_table       = aic94xx_pci_table,
1022         .probe          = asd_pci_probe,
1023         .remove         = asd_pci_remove,
1024 };
1025 
1026 static int __init aic94xx_init(void)
1027 {
1028         int err;
1029 
1030 
1031         asd_printk("%s version %s loaded\n", ASD_DRIVER_DESCRIPTION,
1032                    ASD_DRIVER_VERSION);
1033 
1034         err = asd_create_global_caches();
1035         if (err)
1036                 return err;
1037 
1038         aic94xx_transport_template =
1039                 sas_domain_attach_transport(&aic94xx_transport_functions);
1040         if (!aic94xx_transport_template)
1041                 goto out_destroy_caches;
1042 
1043         err = pci_register_driver(&aic94xx_pci_driver);
1044         if (err)
1045                 goto out_release_transport;
1046 
1047         err = asd_create_driver_attrs(&aic94xx_pci_driver.driver);
1048         if (err)
1049                 goto out_unregister_pcidrv;
1050 
1051         return err;
1052 
1053  out_unregister_pcidrv:
1054         pci_unregister_driver(&aic94xx_pci_driver);
1055  out_release_transport:
1056         sas_release_transport(aic94xx_transport_template);
1057  out_destroy_caches:
1058         asd_destroy_global_caches();
1059 
1060         return err;
1061 }
1062 
1063 static void __exit aic94xx_exit(void)
1064 {
1065         asd_remove_driver_attrs(&aic94xx_pci_driver.driver);
1066         pci_unregister_driver(&aic94xx_pci_driver);
1067         sas_release_transport(aic94xx_transport_template);
1068         asd_release_firmware();
1069         asd_destroy_global_caches();
1070         asd_printk("%s version %s unloaded\n", ASD_DRIVER_DESCRIPTION,
1071                    ASD_DRIVER_VERSION);
1072 }
1073 
1074 module_init(aic94xx_init);
1075 module_exit(aic94xx_exit);
1076 
1077 MODULE_AUTHOR("Luben Tuikov <luben_tuikov@adaptec.com>");
1078 MODULE_DESCRIPTION(ASD_DRIVER_DESCRIPTION);
1079 MODULE_LICENSE("GPL v2");
1080 MODULE_VERSION(ASD_DRIVER_VERSION);
1081 

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