]> Git Repo - J-linux.git/blob - drivers/scsi/aic94xx/aic94xx_init.c
Merge tag 'vfs-6.13-rc7.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
[J-linux.git] / drivers / scsi / aic94xx / aic94xx_init.c
1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3  * Aic94xx SAS/SATA driver initialization.
4  *
5  * Copyright (C) 2005 Adaptec, Inc.  All rights reserved.
6  * Copyright (C) 2005 Luben Tuikov <[email protected]>
7  */
8
9 #include <linux/module.h>
10 #include <linux/init.h>
11 #include <linux/kernel.h>
12 #include <linux/pci.h>
13 #include <linux/delay.h>
14 #include <linux/firmware.h>
15 #include <linux/slab.h>
16
17 #include <scsi/sas_ata.h>
18 #include <scsi/scsi_host.h>
19
20 #include "aic94xx.h"
21 #include "aic94xx_reg.h"
22 #include "aic94xx_hwi.h"
23 #include "aic94xx_seq.h"
24 #include "aic94xx_sds.h"
25
26 /* The format is "version.release.patchlevel" */
27 #define ASD_DRIVER_VERSION "1.0.3"
28 #define DRV_NAME "aic94xx"
29
30 static int use_msi = 0;
31 module_param_named(use_msi, use_msi, int, S_IRUGO);
32 MODULE_PARM_DESC(use_msi, "\n"
33         "\tEnable(1) or disable(0) using PCI MSI.\n"
34         "\tDefault: 0");
35
36 static struct scsi_transport_template *aic94xx_transport_template;
37 static int asd_scan_finished(struct Scsi_Host *, unsigned long);
38 static void asd_scan_start(struct Scsi_Host *);
39 static const struct attribute_group *asd_sdev_groups[];
40
41 static const struct scsi_host_template aic94xx_sht = {
42         LIBSAS_SHT_BASE
43         .scan_finished          = asd_scan_finished,
44         .scan_start             = asd_scan_start,
45         .can_queue              = 1,
46         .sg_tablesize           = SG_ALL,
47         .track_queue_depth      = 1,
48         .sdev_groups            = asd_sdev_groups,
49 };
50
51 static int asd_map_memio(struct asd_ha_struct *asd_ha)
52 {
53         int err, i;
54         struct asd_ha_addrspace *io_handle;
55
56         asd_ha->iospace = 0;
57         for (i = 0; i < 3; i += 2) {
58                 io_handle = &asd_ha->io_handle[i==0?0:1];
59                 io_handle->start = pci_resource_start(asd_ha->pcidev, i);
60                 io_handle->len   = pci_resource_len(asd_ha->pcidev, i);
61                 io_handle->flags = pci_resource_flags(asd_ha->pcidev, i);
62                 err = -ENODEV;
63                 if (!io_handle->start || !io_handle->len) {
64                         asd_printk("MBAR%d start or length for %s is 0.\n",
65                                    i==0?0:1, pci_name(asd_ha->pcidev));
66                         goto Err;
67                 }
68                 err = pci_request_region(asd_ha->pcidev, i, ASD_DRIVER_NAME);
69                 if (err) {
70                         asd_printk("couldn't reserve memory region for %s\n",
71                                    pci_name(asd_ha->pcidev));
72                         goto Err;
73                 }
74                 io_handle->addr = ioremap(io_handle->start, io_handle->len);
75                 if (!io_handle->addr) {
76                         asd_printk("couldn't map MBAR%d of %s\n", i==0?0:1,
77                                    pci_name(asd_ha->pcidev));
78                         err = -ENOMEM;
79                         goto Err_unreq;
80                 }
81         }
82
83         return 0;
84 Err_unreq:
85         pci_release_region(asd_ha->pcidev, i);
86 Err:
87         if (i > 0) {
88                 io_handle = &asd_ha->io_handle[0];
89                 iounmap(io_handle->addr);
90                 pci_release_region(asd_ha->pcidev, 0);
91         }
92         return err;
93 }
94
95 static void asd_unmap_memio(struct asd_ha_struct *asd_ha)
96 {
97         struct asd_ha_addrspace *io_handle;
98
99         io_handle = &asd_ha->io_handle[1];
100         iounmap(io_handle->addr);
101         pci_release_region(asd_ha->pcidev, 2);
102
103         io_handle = &asd_ha->io_handle[0];
104         iounmap(io_handle->addr);
105         pci_release_region(asd_ha->pcidev, 0);
106 }
107
108 static int asd_map_ioport(struct asd_ha_struct *asd_ha)
109 {
110         int i = PCI_IOBAR_OFFSET, err;
111         struct asd_ha_addrspace *io_handle = &asd_ha->io_handle[0];
112
113         asd_ha->iospace = 1;
114         io_handle->start = pci_resource_start(asd_ha->pcidev, i);
115         io_handle->len   = pci_resource_len(asd_ha->pcidev, i);
116         io_handle->flags = pci_resource_flags(asd_ha->pcidev, i);
117         io_handle->addr  = (void __iomem *) io_handle->start;
118         if (!io_handle->start || !io_handle->len) {
119                 asd_printk("couldn't get IO ports for %s\n",
120                            pci_name(asd_ha->pcidev));
121                 return -ENODEV;
122         }
123         err = pci_request_region(asd_ha->pcidev, i, ASD_DRIVER_NAME);
124         if (err) {
125                 asd_printk("couldn't reserve io space for %s\n",
126                            pci_name(asd_ha->pcidev));
127         }
128
129         return err;
130 }
131
132 static void asd_unmap_ioport(struct asd_ha_struct *asd_ha)
133 {
134         pci_release_region(asd_ha->pcidev, PCI_IOBAR_OFFSET);
135 }
136
137 static int asd_map_ha(struct asd_ha_struct *asd_ha)
138 {
139         int err;
140         u16 cmd_reg;
141
142         err = pci_read_config_word(asd_ha->pcidev, PCI_COMMAND, &cmd_reg);
143         if (err) {
144                 asd_printk("couldn't read command register of %s\n",
145                            pci_name(asd_ha->pcidev));
146                 goto Err;
147         }
148
149         err = -ENODEV;
150         if (cmd_reg & PCI_COMMAND_MEMORY) {
151                 if ((err = asd_map_memio(asd_ha)))
152                         goto Err;
153         } else if (cmd_reg & PCI_COMMAND_IO) {
154                 if ((err = asd_map_ioport(asd_ha)))
155                         goto Err;
156                 asd_printk("%s ioport mapped -- upgrade your hardware\n",
157                            pci_name(asd_ha->pcidev));
158         } else {
159                 asd_printk("no proper device access to %s\n",
160                            pci_name(asd_ha->pcidev));
161                 goto Err;
162         }
163
164         return 0;
165 Err:
166         return err;
167 }
168
169 static void asd_unmap_ha(struct asd_ha_struct *asd_ha)
170 {
171         if (asd_ha->iospace)
172                 asd_unmap_ioport(asd_ha);
173         else
174                 asd_unmap_memio(asd_ha);
175 }
176
177 static const char *asd_dev_rev[30] = {
178         [0] = "A0",
179         [1] = "A1",
180         [8] = "B0",
181 };
182
183 static int asd_common_setup(struct asd_ha_struct *asd_ha)
184 {
185         int err, i;
186
187         asd_ha->revision_id = asd_ha->pcidev->revision;
188
189         err = -ENODEV;
190         if (asd_ha->revision_id < AIC9410_DEV_REV_B0) {
191                 asd_printk("%s is revision %s (%X), which is not supported\n",
192                            pci_name(asd_ha->pcidev),
193                            asd_dev_rev[asd_ha->revision_id],
194                            asd_ha->revision_id);
195                 goto Err;
196         }
197         /* Provide some sane default values. */
198         asd_ha->hw_prof.max_scbs = 512;
199         asd_ha->hw_prof.max_ddbs = ASD_MAX_DDBS;
200         asd_ha->hw_prof.num_phys = ASD_MAX_PHYS;
201         /* All phys are enabled, by default. */
202         asd_ha->hw_prof.enabled_phys = 0xFF;
203         for (i = 0; i < ASD_MAX_PHYS; i++) {
204                 asd_ha->hw_prof.phy_desc[i].max_sas_lrate =
205                         SAS_LINK_RATE_3_0_GBPS;
206                 asd_ha->hw_prof.phy_desc[i].min_sas_lrate =
207                         SAS_LINK_RATE_1_5_GBPS;
208                 asd_ha->hw_prof.phy_desc[i].max_sata_lrate =
209                         SAS_LINK_RATE_1_5_GBPS;
210                 asd_ha->hw_prof.phy_desc[i].min_sata_lrate =
211                         SAS_LINK_RATE_1_5_GBPS;
212         }
213
214         return 0;
215 Err:
216         return err;
217 }
218
219 static int asd_aic9410_setup(struct asd_ha_struct *asd_ha)
220 {
221         int err = asd_common_setup(asd_ha);
222
223         if (err)
224                 return err;
225
226         asd_ha->hw_prof.addr_range = 8;
227         asd_ha->hw_prof.port_name_base = 0;
228         asd_ha->hw_prof.dev_name_base = 8;
229         asd_ha->hw_prof.sata_name_base = 16;
230
231         return 0;
232 }
233
234 static int asd_aic9405_setup(struct asd_ha_struct *asd_ha)
235 {
236         int err = asd_common_setup(asd_ha);
237
238         if (err)
239                 return err;
240
241         asd_ha->hw_prof.addr_range = 4;
242         asd_ha->hw_prof.port_name_base = 0;
243         asd_ha->hw_prof.dev_name_base = 4;
244         asd_ha->hw_prof.sata_name_base = 8;
245
246         return 0;
247 }
248
249 static ssize_t asd_show_dev_rev(struct device *dev,
250                                 struct device_attribute *attr, char *buf)
251 {
252         struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev);
253         return snprintf(buf, PAGE_SIZE, "%s\n",
254                         asd_dev_rev[asd_ha->revision_id]);
255 }
256 static DEVICE_ATTR(aic_revision, S_IRUGO, asd_show_dev_rev, NULL);
257
258 static ssize_t asd_show_dev_bios_build(struct device *dev,
259                                        struct device_attribute *attr,char *buf)
260 {
261         struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev);
262         return snprintf(buf, PAGE_SIZE, "%d\n", asd_ha->hw_prof.bios.bld);
263 }
264 static DEVICE_ATTR(bios_build, S_IRUGO, asd_show_dev_bios_build, NULL);
265
266 static ssize_t asd_show_dev_pcba_sn(struct device *dev,
267                                     struct device_attribute *attr, char *buf)
268 {
269         struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev);
270         return snprintf(buf, PAGE_SIZE, "%s\n", asd_ha->hw_prof.pcba_sn);
271 }
272 static DEVICE_ATTR(pcba_sn, S_IRUGO, asd_show_dev_pcba_sn, NULL);
273
274 #define FLASH_CMD_NONE      0x00
275 #define FLASH_CMD_UPDATE    0x01
276 #define FLASH_CMD_VERIFY    0x02
277
278 struct flash_command {
279      u8      command[8];
280      int     code;
281 };
282
283 static struct flash_command flash_command_table[] =
284 {
285      {"verify",      FLASH_CMD_VERIFY},
286      {"update",      FLASH_CMD_UPDATE},
287      {"",            FLASH_CMD_NONE}      /* Last entry should be NULL. */
288 };
289
290 struct error_bios {
291      char    *reason;
292      int     err_code;
293 };
294
295 static struct error_bios flash_error_table[] =
296 {
297      {"Failed to open bios image file",      FAIL_OPEN_BIOS_FILE},
298      {"PCI ID mismatch",                     FAIL_CHECK_PCI_ID},
299      {"Checksum mismatch",                   FAIL_CHECK_SUM},
300      {"Unknown Error",                       FAIL_UNKNOWN},
301      {"Failed to verify.",                   FAIL_VERIFY},
302      {"Failed to reset flash chip.",         FAIL_RESET_FLASH},
303      {"Failed to find flash chip type.",     FAIL_FIND_FLASH_ID},
304      {"Failed to erash flash chip.",         FAIL_ERASE_FLASH},
305      {"Failed to program flash chip.",       FAIL_WRITE_FLASH},
306      {"Flash in progress",                   FLASH_IN_PROGRESS},
307      {"Image file size Error",               FAIL_FILE_SIZE},
308      {"Input parameter error",               FAIL_PARAMETERS},
309      {"Out of memory",                       FAIL_OUT_MEMORY},
310      {"OK", 0}  /* Last entry err_code = 0. */
311 };
312
313 static ssize_t asd_store_update_bios(struct device *dev,
314         struct device_attribute *attr,
315         const char *buf, size_t count)
316 {
317         struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev);
318         char *cmd_ptr, *filename_ptr;
319         struct bios_file_header header, *hdr_ptr;
320         int res, i;
321         u32 csum = 0;
322         int flash_command = FLASH_CMD_NONE;
323         int err = 0;
324
325         cmd_ptr = kcalloc(count, 2, GFP_KERNEL);
326
327         if (!cmd_ptr) {
328                 err = FAIL_OUT_MEMORY;
329                 goto out;
330         }
331
332         filename_ptr = cmd_ptr + count;
333         res = sscanf(buf, "%s %s", cmd_ptr, filename_ptr);
334         if (res != 2) {
335                 err = FAIL_PARAMETERS;
336                 goto out1;
337         }
338
339         for (i = 0; flash_command_table[i].code != FLASH_CMD_NONE; i++) {
340                 if (!memcmp(flash_command_table[i].command,
341                                  cmd_ptr, strlen(cmd_ptr))) {
342                         flash_command = flash_command_table[i].code;
343                         break;
344                 }
345         }
346         if (flash_command == FLASH_CMD_NONE) {
347                 err = FAIL_PARAMETERS;
348                 goto out1;
349         }
350
351         if (asd_ha->bios_status == FLASH_IN_PROGRESS) {
352                 err = FLASH_IN_PROGRESS;
353                 goto out1;
354         }
355         err = request_firmware(&asd_ha->bios_image,
356                                    filename_ptr,
357                                    &asd_ha->pcidev->dev);
358         if (err) {
359                 asd_printk("Failed to load bios image file %s, error %d\n",
360                            filename_ptr, err);
361                 err = FAIL_OPEN_BIOS_FILE;
362                 goto out1;
363         }
364
365         hdr_ptr = (struct bios_file_header *)asd_ha->bios_image->data;
366
367         if ((hdr_ptr->contrl_id.vendor != asd_ha->pcidev->vendor ||
368                 hdr_ptr->contrl_id.device != asd_ha->pcidev->device) &&
369                 (hdr_ptr->contrl_id.sub_vendor != asd_ha->pcidev->vendor ||
370                 hdr_ptr->contrl_id.sub_device != asd_ha->pcidev->device)) {
371
372                 ASD_DPRINTK("The PCI vendor or device id does not match\n");
373                 ASD_DPRINTK("vendor=%x dev=%x sub_vendor=%x sub_dev=%x"
374                 " pci vendor=%x pci dev=%x\n",
375                 hdr_ptr->contrl_id.vendor,
376                 hdr_ptr->contrl_id.device,
377                 hdr_ptr->contrl_id.sub_vendor,
378                 hdr_ptr->contrl_id.sub_device,
379                 asd_ha->pcidev->vendor,
380                 asd_ha->pcidev->device);
381                 err = FAIL_CHECK_PCI_ID;
382                 goto out2;
383         }
384
385         if (hdr_ptr->filelen != asd_ha->bios_image->size) {
386                 err = FAIL_FILE_SIZE;
387                 goto out2;
388         }
389
390         /* calculate checksum */
391         for (i = 0; i < hdr_ptr->filelen; i++)
392                 csum += asd_ha->bios_image->data[i];
393
394         if ((csum & 0x0000ffff) != hdr_ptr->checksum) {
395                 ASD_DPRINTK("BIOS file checksum mismatch\n");
396                 err = FAIL_CHECK_SUM;
397                 goto out2;
398         }
399         if (flash_command == FLASH_CMD_UPDATE) {
400                 asd_ha->bios_status = FLASH_IN_PROGRESS;
401                 err = asd_write_flash_seg(asd_ha,
402                         &asd_ha->bios_image->data[sizeof(*hdr_ptr)],
403                         0, hdr_ptr->filelen-sizeof(*hdr_ptr));
404                 if (!err)
405                         err = asd_verify_flash_seg(asd_ha,
406                                 &asd_ha->bios_image->data[sizeof(*hdr_ptr)],
407                                 0, hdr_ptr->filelen-sizeof(*hdr_ptr));
408         } else {
409                 asd_ha->bios_status = FLASH_IN_PROGRESS;
410                 err = asd_verify_flash_seg(asd_ha,
411                         &asd_ha->bios_image->data[sizeof(header)],
412                         0, hdr_ptr->filelen-sizeof(header));
413         }
414
415 out2:
416         release_firmware(asd_ha->bios_image);
417 out1:
418         kfree(cmd_ptr);
419 out:
420         asd_ha->bios_status = err;
421
422         if (!err)
423                 return count;
424         else
425                 return -err;
426 }
427
428 static ssize_t asd_show_update_bios(struct device *dev,
429                                     struct device_attribute *attr, char *buf)
430 {
431         int i;
432         struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev);
433
434         for (i = 0; flash_error_table[i].err_code != 0; i++) {
435                 if (flash_error_table[i].err_code == asd_ha->bios_status)
436                         break;
437         }
438         if (asd_ha->bios_status != FLASH_IN_PROGRESS)
439                 asd_ha->bios_status = FLASH_OK;
440
441         return snprintf(buf, PAGE_SIZE, "status=%x %s\n",
442                         flash_error_table[i].err_code,
443                         flash_error_table[i].reason);
444 }
445
446 static DEVICE_ATTR(update_bios, S_IRUGO|S_IWUSR,
447         asd_show_update_bios, asd_store_update_bios);
448
449 static int asd_create_dev_attrs(struct asd_ha_struct *asd_ha)
450 {
451         int err;
452
453         err = device_create_file(&asd_ha->pcidev->dev, &dev_attr_aic_revision);
454         if (err)
455                 return err;
456
457         err = device_create_file(&asd_ha->pcidev->dev, &dev_attr_bios_build);
458         if (err)
459                 goto err_rev;
460
461         err = device_create_file(&asd_ha->pcidev->dev, &dev_attr_pcba_sn);
462         if (err)
463                 goto err_biosb;
464         err = device_create_file(&asd_ha->pcidev->dev, &dev_attr_update_bios);
465         if (err)
466                 goto err_update_bios;
467
468         return 0;
469
470 err_update_bios:
471         device_remove_file(&asd_ha->pcidev->dev, &dev_attr_pcba_sn);
472 err_biosb:
473         device_remove_file(&asd_ha->pcidev->dev, &dev_attr_bios_build);
474 err_rev:
475         device_remove_file(&asd_ha->pcidev->dev, &dev_attr_aic_revision);
476         return err;
477 }
478
479 static void asd_remove_dev_attrs(struct asd_ha_struct *asd_ha)
480 {
481         device_remove_file(&asd_ha->pcidev->dev, &dev_attr_aic_revision);
482         device_remove_file(&asd_ha->pcidev->dev, &dev_attr_bios_build);
483         device_remove_file(&asd_ha->pcidev->dev, &dev_attr_pcba_sn);
484         device_remove_file(&asd_ha->pcidev->dev, &dev_attr_update_bios);
485 }
486
487 /* The first entry, 0, is used for dynamic ids, the rest for devices
488  * we know about.
489  */
490 static const struct asd_pcidev_struct {
491         const char * name;
492         int (*setup)(struct asd_ha_struct *asd_ha);
493 } asd_pcidev_data[] = {
494         /* Id 0 is used for dynamic ids. */
495         { .name  = "Adaptec AIC-94xx SAS/SATA Host Adapter",
496           .setup = asd_aic9410_setup
497         },
498         { .name  = "Adaptec AIC-9410W SAS/SATA Host Adapter",
499           .setup = asd_aic9410_setup
500         },
501         { .name  = "Adaptec AIC-9405W SAS/SATA Host Adapter",
502           .setup = asd_aic9405_setup
503         },
504 };
505
506 static int asd_create_ha_caches(struct asd_ha_struct *asd_ha)
507 {
508         asd_ha->scb_pool = dma_pool_create(ASD_DRIVER_NAME "_scb_pool",
509                                            &asd_ha->pcidev->dev,
510                                            sizeof(struct scb),
511                                            8, 0);
512         if (!asd_ha->scb_pool) {
513                 asd_printk("couldn't create scb pool\n");
514                 return -ENOMEM;
515         }
516
517         return 0;
518 }
519
520 /*
521  * asd_free_edbs -- free empty data buffers
522  * asd_ha: pointer to host adapter structure
523  */
524 static void asd_free_edbs(struct asd_ha_struct *asd_ha)
525 {
526         struct asd_seq_data *seq = &asd_ha->seq;
527         int i;
528
529         for (i = 0; i < seq->num_edbs; i++)
530                 asd_free_coherent(asd_ha, seq->edb_arr[i]);
531         kfree(seq->edb_arr);
532         seq->edb_arr = NULL;
533 }
534
535 static void asd_free_escbs(struct asd_ha_struct *asd_ha)
536 {
537         struct asd_seq_data *seq = &asd_ha->seq;
538         int i;
539
540         for (i = 0; i < seq->num_escbs; i++) {
541                 if (!list_empty(&seq->escb_arr[i]->list))
542                         list_del_init(&seq->escb_arr[i]->list);
543
544                 asd_ascb_free(seq->escb_arr[i]);
545         }
546         kfree(seq->escb_arr);
547         seq->escb_arr = NULL;
548 }
549
550 static void asd_destroy_ha_caches(struct asd_ha_struct *asd_ha)
551 {
552         int i;
553
554         if (asd_ha->hw_prof.ddb_ext)
555                 asd_free_coherent(asd_ha, asd_ha->hw_prof.ddb_ext);
556         if (asd_ha->hw_prof.scb_ext)
557                 asd_free_coherent(asd_ha, asd_ha->hw_prof.scb_ext);
558
559         kfree(asd_ha->hw_prof.ddb_bitmap);
560         asd_ha->hw_prof.ddb_bitmap = NULL;
561
562         for (i = 0; i < ASD_MAX_PHYS; i++) {
563                 struct asd_phy *phy = &asd_ha->phys[i];
564
565                 asd_free_coherent(asd_ha, phy->id_frm_tok);
566         }
567         if (asd_ha->seq.escb_arr)
568                 asd_free_escbs(asd_ha);
569         if (asd_ha->seq.edb_arr)
570                 asd_free_edbs(asd_ha);
571         if (asd_ha->hw_prof.ue.area) {
572                 kfree(asd_ha->hw_prof.ue.area);
573                 asd_ha->hw_prof.ue.area = NULL;
574         }
575         if (asd_ha->seq.tc_index_array) {
576                 kfree(asd_ha->seq.tc_index_array);
577                 kfree(asd_ha->seq.tc_index_bitmap);
578                 asd_ha->seq.tc_index_array = NULL;
579                 asd_ha->seq.tc_index_bitmap = NULL;
580         }
581         if (asd_ha->seq.actual_dl) {
582                         asd_free_coherent(asd_ha, asd_ha->seq.actual_dl);
583                         asd_ha->seq.actual_dl = NULL;
584                         asd_ha->seq.dl = NULL;
585         }
586         if (asd_ha->seq.next_scb.vaddr) {
587                 dma_pool_free(asd_ha->scb_pool, asd_ha->seq.next_scb.vaddr,
588                               asd_ha->seq.next_scb.dma_handle);
589                 asd_ha->seq.next_scb.vaddr = NULL;
590         }
591         dma_pool_destroy(asd_ha->scb_pool);
592         asd_ha->scb_pool = NULL;
593 }
594
595 struct kmem_cache *asd_dma_token_cache;
596 struct kmem_cache *asd_ascb_cache;
597
598 static int asd_create_global_caches(void)
599 {
600         if (!asd_dma_token_cache) {
601                 asd_dma_token_cache
602                         = kmem_cache_create(ASD_DRIVER_NAME "_dma_token",
603                                             sizeof(struct asd_dma_tok),
604                                             0,
605                                             SLAB_HWCACHE_ALIGN,
606                                             NULL);
607                 if (!asd_dma_token_cache) {
608                         asd_printk("couldn't create dma token cache\n");
609                         return -ENOMEM;
610                 }
611         }
612
613         if (!asd_ascb_cache) {
614                 asd_ascb_cache = kmem_cache_create(ASD_DRIVER_NAME "_ascb",
615                                                    sizeof(struct asd_ascb),
616                                                    0,
617                                                    SLAB_HWCACHE_ALIGN,
618                                                    NULL);
619                 if (!asd_ascb_cache) {
620                         asd_printk("couldn't create ascb cache\n");
621                         goto Err;
622                 }
623         }
624
625         return 0;
626 Err:
627         kmem_cache_destroy(asd_dma_token_cache);
628         asd_dma_token_cache = NULL;
629         return -ENOMEM;
630 }
631
632 static void asd_destroy_global_caches(void)
633 {
634         kmem_cache_destroy(asd_dma_token_cache);
635         asd_dma_token_cache = NULL;
636
637         kmem_cache_destroy(asd_ascb_cache);
638         asd_ascb_cache = NULL;
639 }
640
641 static int asd_register_sas_ha(struct asd_ha_struct *asd_ha)
642 {
643         int i;
644         struct asd_sas_phy   **sas_phys =
645                 kcalloc(ASD_MAX_PHYS, sizeof(*sas_phys), GFP_KERNEL);
646         struct asd_sas_port  **sas_ports =
647                 kcalloc(ASD_MAX_PHYS, sizeof(*sas_ports), GFP_KERNEL);
648
649         if (!sas_phys || !sas_ports) {
650                 kfree(sas_phys);
651                 kfree(sas_ports);
652                 return -ENOMEM;
653         }
654
655         asd_ha->sas_ha.sas_ha_name = (char *) asd_ha->name;
656         asd_ha->sas_ha.sas_addr = &asd_ha->hw_prof.sas_addr[0];
657
658         for (i = 0; i < ASD_MAX_PHYS; i++) {
659                 sas_phys[i] = &asd_ha->phys[i].sas_phy;
660                 sas_ports[i] = &asd_ha->ports[i];
661         }
662
663         asd_ha->sas_ha.sas_phy = sas_phys;
664         asd_ha->sas_ha.sas_port= sas_ports;
665         asd_ha->sas_ha.num_phys= ASD_MAX_PHYS;
666
667         return sas_register_ha(&asd_ha->sas_ha);
668 }
669
670 static int asd_unregister_sas_ha(struct asd_ha_struct *asd_ha)
671 {
672         int err;
673
674         err = sas_unregister_ha(&asd_ha->sas_ha);
675
676         sas_remove_host(asd_ha->sas_ha.shost);
677         scsi_host_put(asd_ha->sas_ha.shost);
678
679         kfree(asd_ha->sas_ha.sas_phy);
680         kfree(asd_ha->sas_ha.sas_port);
681
682         return err;
683 }
684
685 static int asd_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)
686 {
687         const struct asd_pcidev_struct *asd_dev;
688         unsigned asd_id = (unsigned) id->driver_data;
689         struct asd_ha_struct *asd_ha;
690         struct Scsi_Host *shost;
691         int err;
692
693         if (asd_id >= ARRAY_SIZE(asd_pcidev_data)) {
694                 asd_printk("wrong driver_data in PCI table\n");
695                 return -ENODEV;
696         }
697
698         if ((err = pci_enable_device(dev))) {
699                 asd_printk("couldn't enable device %s\n", pci_name(dev));
700                 return err;
701         }
702
703         pci_set_master(dev);
704
705         err = -ENOMEM;
706
707         shost = scsi_host_alloc(&aic94xx_sht, sizeof(void *));
708         if (!shost)
709                 goto Err;
710
711         asd_dev = &asd_pcidev_data[asd_id];
712
713         asd_ha = kzalloc(sizeof(*asd_ha), GFP_KERNEL);
714         if (!asd_ha) {
715                 asd_printk("out of memory\n");
716                 goto Err_put;
717         }
718         asd_ha->pcidev = dev;
719         asd_ha->sas_ha.dev = &asd_ha->pcidev->dev;
720         asd_ha->sas_ha.lldd_ha = asd_ha;
721
722         asd_ha->bios_status = FLASH_OK;
723         asd_ha->name = asd_dev->name;
724         asd_printk("found %s, device %s\n", asd_ha->name, pci_name(dev));
725
726         SHOST_TO_SAS_HA(shost) = &asd_ha->sas_ha;
727         asd_ha->sas_ha.shost = shost;
728         shost->transportt = aic94xx_transport_template;
729         shost->max_id = ~0;
730         shost->max_lun = ~0;
731         shost->max_cmd_len = 16;
732
733         err = scsi_add_host(shost, &dev->dev);
734         if (err)
735                 goto Err_free;
736
737         err = asd_dev->setup(asd_ha);
738         if (err)
739                 goto Err_remove;
740
741         err = dma_set_mask_and_coherent(&dev->dev, DMA_BIT_MASK(64));
742         if (err)
743                 err = dma_set_mask_and_coherent(&dev->dev, DMA_BIT_MASK(32));
744         if (err) {
745                 err = -ENODEV;
746                 asd_printk("no suitable DMA mask for %s\n", pci_name(dev));
747                 goto Err_remove;
748         }
749
750         pci_set_drvdata(dev, asd_ha);
751
752         err = asd_map_ha(asd_ha);
753         if (err)
754                 goto Err_remove;
755
756         err = asd_create_ha_caches(asd_ha);
757         if (err)
758                 goto Err_unmap;
759
760         err = asd_init_hw(asd_ha);
761         if (err)
762                 goto Err_free_cache;
763
764         asd_printk("device %s: SAS addr %llx, PCBA SN %s, %d phys, %d enabled "
765                    "phys, flash %s, BIOS %s%d\n",
766                    pci_name(dev), SAS_ADDR(asd_ha->hw_prof.sas_addr),
767                    asd_ha->hw_prof.pcba_sn, asd_ha->hw_prof.max_phys,
768                    asd_ha->hw_prof.num_phys,
769                    asd_ha->hw_prof.flash.present ? "present" : "not present",
770                    asd_ha->hw_prof.bios.present ? "build " : "not present",
771                    asd_ha->hw_prof.bios.bld);
772
773         shost->can_queue = asd_ha->seq.can_queue;
774
775         if (use_msi)
776                 pci_enable_msi(asd_ha->pcidev);
777
778         err = request_irq(asd_ha->pcidev->irq, asd_hw_isr, IRQF_SHARED,
779                           ASD_DRIVER_NAME, asd_ha);
780         if (err) {
781                 asd_printk("couldn't get irq %d for %s\n",
782                            asd_ha->pcidev->irq, pci_name(asd_ha->pcidev));
783                 goto Err_irq;
784         }
785         asd_enable_ints(asd_ha);
786
787         err = asd_init_post_escbs(asd_ha);
788         if (err) {
789                 asd_printk("couldn't post escbs for %s\n",
790                            pci_name(asd_ha->pcidev));
791                 goto Err_escbs;
792         }
793         ASD_DPRINTK("escbs posted\n");
794
795         err = asd_create_dev_attrs(asd_ha);
796         if (err)
797                 goto Err_dev_attrs;
798
799         err = asd_register_sas_ha(asd_ha);
800         if (err)
801                 goto Err_reg_sas;
802
803         scsi_scan_host(shost);
804
805         return 0;
806
807 Err_reg_sas:
808         asd_remove_dev_attrs(asd_ha);
809 Err_dev_attrs:
810 Err_escbs:
811         asd_disable_ints(asd_ha);
812         free_irq(dev->irq, asd_ha);
813 Err_irq:
814         if (use_msi)
815                 pci_disable_msi(dev);
816         asd_chip_hardrst(asd_ha);
817 Err_free_cache:
818         asd_destroy_ha_caches(asd_ha);
819 Err_unmap:
820         asd_unmap_ha(asd_ha);
821 Err_remove:
822         scsi_remove_host(shost);
823 Err_free:
824         kfree(asd_ha);
825 Err_put:
826         scsi_host_put(shost);
827 Err:
828         pci_disable_device(dev);
829         return err;
830 }
831
832 static void asd_free_queues(struct asd_ha_struct *asd_ha)
833 {
834         unsigned long flags;
835         LIST_HEAD(pending);
836         struct list_head *n, *pos;
837
838         spin_lock_irqsave(&asd_ha->seq.pend_q_lock, flags);
839         asd_ha->seq.pending = 0;
840         list_splice_init(&asd_ha->seq.pend_q, &pending);
841         spin_unlock_irqrestore(&asd_ha->seq.pend_q_lock, flags);
842
843         if (!list_empty(&pending))
844                 ASD_DPRINTK("Uh-oh! Pending is not empty!\n");
845
846         list_for_each_safe(pos, n, &pending) {
847                 struct asd_ascb *ascb = list_entry(pos, struct asd_ascb, list);
848                 /*
849                  * Delete unexpired ascb timers.  This may happen if we issue
850                  * a CONTROL PHY scb to an adapter and rmmod before the scb
851                  * times out.  Apparently we don't wait for the CONTROL PHY
852                  * to complete, so it doesn't matter if we kill the timer.
853                  */
854                 del_timer_sync(&ascb->timer);
855                 WARN_ON(ascb->scb->header.opcode != CONTROL_PHY);
856
857                 list_del_init(pos);
858                 ASD_DPRINTK("freeing from pending\n");
859                 asd_ascb_free(ascb);
860         }
861 }
862
863 static void asd_turn_off_leds(struct asd_ha_struct *asd_ha)
864 {
865         u8 phy_mask = asd_ha->hw_prof.enabled_phys;
866         u8 i;
867
868         for_each_phy(phy_mask, phy_mask, i) {
869                 asd_turn_led(asd_ha, i, 0);
870                 asd_control_led(asd_ha, i, 0);
871         }
872 }
873
874 static void asd_pci_remove(struct pci_dev *dev)
875 {
876         struct asd_ha_struct *asd_ha = pci_get_drvdata(dev);
877
878         if (!asd_ha)
879                 return;
880
881         asd_unregister_sas_ha(asd_ha);
882
883         asd_disable_ints(asd_ha);
884
885         asd_remove_dev_attrs(asd_ha);
886
887         /* XXX more here as needed */
888
889         free_irq(dev->irq, asd_ha);
890         if (use_msi)
891                 pci_disable_msi(asd_ha->pcidev);
892         asd_turn_off_leds(asd_ha);
893         asd_chip_hardrst(asd_ha);
894         asd_free_queues(asd_ha);
895         asd_destroy_ha_caches(asd_ha);
896         asd_unmap_ha(asd_ha);
897         kfree(asd_ha);
898         pci_disable_device(dev);
899         return;
900 }
901
902 static void asd_scan_start(struct Scsi_Host *shost)
903 {
904         struct asd_ha_struct *asd_ha;
905         int err;
906
907         asd_ha = SHOST_TO_SAS_HA(shost)->lldd_ha;
908         err = asd_enable_phys(asd_ha, asd_ha->hw_prof.enabled_phys);
909         if (err)
910                 asd_printk("Couldn't enable phys, err:%d\n", err);
911 }
912
913 static int asd_scan_finished(struct Scsi_Host *shost, unsigned long time)
914 {
915         /* give the phy enabling interrupt event time to come in (1s
916          * is empirically about all it takes) */
917         if (time < HZ)
918                 return 0;
919         /* Wait for discovery to finish */
920         sas_drain_work(SHOST_TO_SAS_HA(shost));
921         return 1;
922 }
923
924 static ssize_t version_show(struct device_driver *driver, char *buf)
925 {
926         return snprintf(buf, PAGE_SIZE, "%s\n", ASD_DRIVER_VERSION);
927 }
928 static DRIVER_ATTR_RO(version);
929
930 static int asd_create_driver_attrs(struct device_driver *driver)
931 {
932         return driver_create_file(driver, &driver_attr_version);
933 }
934
935 static void asd_remove_driver_attrs(struct device_driver *driver)
936 {
937         driver_remove_file(driver, &driver_attr_version);
938 }
939
940 static const struct attribute_group *asd_sdev_groups[] = {
941         &sas_ata_sdev_attr_group,
942         NULL
943 };
944
945 static struct sas_domain_function_template aic94xx_transport_functions = {
946         .lldd_dev_found         = asd_dev_found,
947         .lldd_dev_gone          = asd_dev_gone,
948
949         .lldd_execute_task      = asd_execute_task,
950
951         .lldd_abort_task        = asd_abort_task,
952         .lldd_abort_task_set    = asd_abort_task_set,
953         .lldd_clear_task_set    = asd_clear_task_set,
954         .lldd_I_T_nexus_reset   = asd_I_T_nexus_reset,
955         .lldd_lu_reset          = asd_lu_reset,
956         .lldd_query_task        = asd_query_task,
957
958         .lldd_clear_nexus_port  = asd_clear_nexus_port,
959         .lldd_clear_nexus_ha    = asd_clear_nexus_ha,
960
961         .lldd_control_phy       = asd_control_phy,
962
963         .lldd_ata_set_dmamode   = asd_set_dmamode,
964 };
965
966 static const struct pci_device_id aic94xx_pci_table[] = {
967         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x410),0, 0, 1},
968         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x412),0, 0, 1},
969         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x416),0, 0, 1},
970         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x41E),0, 0, 1},
971         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x41F),0, 0, 1},
972         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x430),0, 0, 2},
973         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x432),0, 0, 2},
974         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x43E),0, 0, 2},
975         {PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x43F),0, 0, 2},
976         {}
977 };
978
979 MODULE_DEVICE_TABLE(pci, aic94xx_pci_table);
980
981 static struct pci_driver aic94xx_pci_driver = {
982         .name           = ASD_DRIVER_NAME,
983         .id_table       = aic94xx_pci_table,
984         .probe          = asd_pci_probe,
985         .remove         = asd_pci_remove,
986 };
987
988 static int __init aic94xx_init(void)
989 {
990         int err;
991
992
993         asd_printk("%s version %s loaded\n", ASD_DRIVER_DESCRIPTION,
994                    ASD_DRIVER_VERSION);
995
996         err = asd_create_global_caches();
997         if (err)
998                 return err;
999
1000         aic94xx_transport_template =
1001                 sas_domain_attach_transport(&aic94xx_transport_functions);
1002         if (!aic94xx_transport_template) {
1003                 err = -ENOMEM;
1004                 goto out_destroy_caches;
1005         }
1006
1007         err = pci_register_driver(&aic94xx_pci_driver);
1008         if (err)
1009                 goto out_release_transport;
1010
1011         err = asd_create_driver_attrs(&aic94xx_pci_driver.driver);
1012         if (err)
1013                 goto out_unregister_pcidrv;
1014
1015         return err;
1016
1017  out_unregister_pcidrv:
1018         pci_unregister_driver(&aic94xx_pci_driver);
1019  out_release_transport:
1020         sas_release_transport(aic94xx_transport_template);
1021  out_destroy_caches:
1022         asd_destroy_global_caches();
1023
1024         return err;
1025 }
1026
1027 static void __exit aic94xx_exit(void)
1028 {
1029         asd_remove_driver_attrs(&aic94xx_pci_driver.driver);
1030         pci_unregister_driver(&aic94xx_pci_driver);
1031         sas_release_transport(aic94xx_transport_template);
1032         asd_release_firmware();
1033         asd_destroy_global_caches();
1034         asd_printk("%s version %s unloaded\n", ASD_DRIVER_DESCRIPTION,
1035                    ASD_DRIVER_VERSION);
1036 }
1037
1038 module_init(aic94xx_init);
1039 module_exit(aic94xx_exit);
1040
1041 MODULE_AUTHOR("Luben Tuikov <[email protected]>");
1042 MODULE_DESCRIPTION(ASD_DRIVER_DESCRIPTION);
1043 MODULE_LICENSE("GPL v2");
1044 MODULE_VERSION(ASD_DRIVER_VERSION);
This page took 0.081815 seconds and 4 git commands to generate.