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Merge tag 'mvebu-fixes-3.19' of git://git.infradead.org/linux-mvebu into fixes
[deliverable/linux.git] / 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);
Linux kernel - Deliverables
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