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 <luben_tuikov@adaptec.com>
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
asd_map_memio(struct asd_ha_struct * asd_ha)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
asd_unmap_memio(struct asd_ha_struct * asd_ha)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
asd_map_ioport(struct asd_ha_struct * asd_ha)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
asd_unmap_ioport(struct asd_ha_struct * asd_ha)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
asd_map_ha(struct asd_ha_struct * asd_ha)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
asd_unmap_ha(struct asd_ha_struct * asd_ha)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
asd_common_setup(struct asd_ha_struct * asd_ha)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
asd_aic9410_setup(struct asd_ha_struct * asd_ha)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
asd_aic9405_setup(struct asd_ha_struct * asd_ha)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
asd_show_dev_rev(struct device * dev,struct device_attribute * attr,char * buf)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
asd_show_dev_bios_build(struct device * dev,struct device_attribute * attr,char * buf)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
asd_show_dev_pcba_sn(struct device * dev,struct device_attribute * attr,char * buf)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
asd_store_update_bios(struct device * dev,struct device_attribute * attr,const char * buf,size_t count)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
asd_show_update_bios(struct device * dev,struct device_attribute * attr,char * buf)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
asd_create_dev_attrs(struct asd_ha_struct * asd_ha)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
asd_remove_dev_attrs(struct asd_ha_struct * asd_ha)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
asd_create_ha_caches(struct asd_ha_struct * asd_ha)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 */
asd_free_edbs(struct asd_ha_struct * asd_ha)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
asd_free_escbs(struct asd_ha_struct * asd_ha)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
asd_destroy_ha_caches(struct asd_ha_struct * asd_ha)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
asd_create_global_caches(void)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
asd_destroy_global_caches(void)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
asd_register_sas_ha(struct asd_ha_struct * asd_ha)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
asd_unregister_sas_ha(struct asd_ha_struct * asd_ha)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
asd_pci_probe(struct pci_dev * dev,const struct pci_device_id * id)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
asd_free_queues(struct asd_ha_struct * asd_ha)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
asd_turn_off_leds(struct asd_ha_struct * asd_ha)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
asd_pci_remove(struct pci_dev * dev)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
asd_scan_start(struct Scsi_Host * shost)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
asd_scan_finished(struct Scsi_Host * shost,unsigned long time)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
version_show(struct device_driver * driver,char * buf)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
asd_create_driver_attrs(struct device_driver * driver)930 static int asd_create_driver_attrs(struct device_driver *driver)
931 {
932 return driver_create_file(driver, &driver_attr_version);
933 }
934
asd_remove_driver_attrs(struct device_driver * driver)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
aic94xx_init(void)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
aic94xx_exit(void)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 <luben_tuikov@adaptec.com>");
1042 MODULE_DESCRIPTION(ASD_DRIVER_DESCRIPTION);
1043 MODULE_LICENSE("GPL v2");
1044 MODULE_VERSION(ASD_DRIVER_VERSION);
1045