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path: root/drivers/message/i2o/config-osm.c
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Diffstat (limited to 'drivers/message/i2o/config-osm.c')
-rw-r--r--drivers/message/i2o/config-osm.c494
1 files changed, 0 insertions, 494 deletions
diff --git a/drivers/message/i2o/config-osm.c b/drivers/message/i2o/config-osm.c
index fe2e7afc9eae..af32ab4e90cd 100644
--- a/drivers/message/i2o/config-osm.c
+++ b/drivers/message/i2o/config-osm.c
@@ -30,503 +30,9 @@
30 30
31static struct i2o_driver i2o_config_driver; 31static struct i2o_driver i2o_config_driver;
32 32
33/* Special file operations for sysfs */
34struct fops_attribute {
35 struct bin_attribute bin;
36 struct file_operations fops;
37};
38
39/**
40 * sysfs_read_dummy
41 */
42static ssize_t sysfs_read_dummy(struct kobject *kobj, char *buf, loff_t offset,
43 size_t count)
44{
45 return 0;
46};
47
48/**
49 * sysfs_write_dummy
50 */
51static ssize_t sysfs_write_dummy(struct kobject *kobj, char *buf, loff_t offset,
52 size_t count)
53{
54 return 0;
55};
56
57/**
58 * sysfs_create_fops_file - Creates attribute with special file operations
59 * @kobj: kobject which should contains the attribute
60 * @attr: attributes which should be used to create file
61 *
62 * First creates attribute @attr in kobject @kobj. If it is the first time
63 * this function is called, merge old fops from sysfs with new one and
64 * write it back. Afterwords the new fops will be set for the created
65 * attribute.
66 *
67 * Returns 0 on success or negative error code on failure.
68 */
69static int sysfs_create_fops_file(struct kobject *kobj,
70 struct fops_attribute *attr)
71{
72 struct file_operations tmp, *fops;
73 struct dentry *d;
74 struct qstr qstr;
75 int rc;
76
77 fops = &attr->fops;
78
79 if (fops->read)
80 attr->bin.read = sysfs_read_dummy;
81
82 if (fops->write)
83 attr->bin.write = sysfs_write_dummy;
84
85 if ((rc = sysfs_create_bin_file(kobj, &attr->bin)))
86 return rc;
87
88 qstr.name = attr->bin.attr.name;
89 qstr.len = strlen(qstr.name);
90 qstr.hash = full_name_hash(qstr.name, qstr.len);
91
92 if ((d = lookup_hash(&qstr, kobj->dentry))) {
93 if (!fops->owner) {
94 memcpy(&tmp, d->d_inode->i_fop, sizeof(tmp));
95 if (fops->read)
96 tmp.read = fops->read;
97 if (fops->write)
98 tmp.write = fops->write;
99 memcpy(fops, &tmp, sizeof(tmp));
100 }
101
102 d->d_inode->i_fop = fops;
103 } else
104 sysfs_remove_bin_file(kobj, &attr->bin);
105
106 return -ENOENT;
107};
108
109/**
110 * sysfs_remove_fops_file - Remove attribute with special file operations
111 * @kobj: kobject which contains the attribute
112 * @attr: attributes which are used to create file
113 *
114 * Only wrapper arround sysfs_remove_bin_file()
115 *
116 * Returns 0 on success or negative error code on failure.
117 */
118static inline int sysfs_remove_fops_file(struct kobject *kobj,
119 struct fops_attribute *attr)
120{
121 return sysfs_remove_bin_file(kobj, &attr->bin);
122};
123
124/**
125 * i2o_config_read_hrt - Returns the HRT of the controller
126 * @kob: kernel object handle
127 * @buf: buffer into which the HRT should be copied
128 * @off: file offset
129 * @count: number of bytes to read
130 *
131 * Put @count bytes starting at @off into @buf from the HRT of the I2O
132 * controller corresponding to @kobj.
133 *
134 * Returns number of bytes copied into buffer.
135 */
136static ssize_t i2o_config_read_hrt(struct kobject *kobj, char *buf,
137 loff_t offset, size_t count)
138{
139 struct i2o_controller *c = kobj_to_i2o_device(kobj)->iop;
140 i2o_hrt *hrt = c->hrt.virt;
141
142 u32 size = (hrt->num_entries * hrt->entry_len + 2) * 4;
143
144 if (offset > size)
145 return 0;
146
147 if (offset + count > size)
148 count = size - offset;
149
150 memcpy(buf, (u8 *) hrt + offset, count);
151
152 return count;
153};
154
155/**
156 * i2o_config_read_lct - Returns the LCT of the controller
157 * @kob: kernel object handle
158 * @buf: buffer into which the LCT should be copied
159 * @off: file offset
160 * @count: number of bytes to read
161 *
162 * Put @count bytes starting at @off into @buf from the LCT of the I2O
163 * controller corresponding to @kobj.
164 *
165 * Returns number of bytes copied into buffer.
166 */
167static ssize_t i2o_config_read_lct(struct kobject *kobj, char *buf,
168 loff_t offset, size_t count)
169{
170 struct i2o_controller *c = kobj_to_i2o_device(kobj)->iop;
171 u32 size = c->lct->table_size * 4;
172
173 if (offset > size)
174 return 0;
175
176 if (offset + count > size)
177 count = size - offset;
178
179 memcpy(buf, (u8 *) c->lct + offset, count);
180
181 return count;
182};
183
184#define I2O_CONFIG_SW_ATTR(_name,_mode,_type,_swid) \
185static ssize_t i2o_config_##_name##_read(struct file *file, char __user *buf, size_t count, loff_t * offset) { \
186 return i2o_config_sw_read(file, buf, count, offset, _type, _swid); \
187};\
188\
189static ssize_t i2o_config_##_name##_write(struct file *file, const char __user *buf, size_t count, loff_t * offset) { \
190 return i2o_config_sw_write(file, buf, count, offset, _type, _swid); \
191}; \
192\
193static struct fops_attribute i2o_config_attr_##_name = { \
194 .bin = { .attr = { .name = __stringify(_name), .mode = _mode, \
195 .owner = THIS_MODULE }, \
196 .size = 0, }, \
197 .fops = { .write = i2o_config_##_name##_write, \
198 .read = i2o_config_##_name##_read} \
199};
200
201#ifdef CONFIG_I2O_EXT_ADAPTEC
202
203/**
204 * i2o_config_dpt_reagion - Converts type and id to flash region
205 * @swtype: type of software module reading
206 * @swid: id of software which should be read
207 *
208 * Converts type and id from I2O spec to the matching region for DPT /
209 * Adaptec controllers.
210 *
211 * Returns region which match type and id or -1 on error.
212 */
213static u32 i2o_config_dpt_region(u8 swtype, u8 swid)
214{
215 switch (swtype) {
216 case I2O_SOFTWARE_MODULE_IRTOS:
217 /*
218 * content: operation firmware
219 * region size:
220 * 0xbc000 for 2554, 3754, 2564, 3757
221 * 0x170000 for 2865
222 * 0x17c000 for 3966
223 */
224 if (!swid)
225 return 0;
226
227 break;
228
229 case I2O_SOFTWARE_MODULE_IOP_PRIVATE:
230 /*
231 * content: BIOS and SMOR
232 * BIOS size: first 0x8000 bytes
233 * region size:
234 * 0x40000 for 2554, 3754, 2564, 3757
235 * 0x80000 for 2865, 3966
236 */
237 if (!swid)
238 return 1;
239
240 break;
241
242 case I2O_SOFTWARE_MODULE_IOP_CONFIG:
243 switch (swid) {
244 case 0:
245 /*
246 * content: NVRAM defaults
247 * region size: 0x2000 bytes
248 */
249 return 2;
250 case 1:
251 /*
252 * content: serial number
253 * region size: 0x2000 bytes
254 */
255 return 3;
256 }
257 break;
258 }
259
260 return -1;
261};
262
263#endif
264
265/**
266 * i2o_config_sw_read - Read a software module from controller
267 * @file: file pointer
268 * @buf: buffer into which the data should be copied
269 * @count: number of bytes to read
270 * @off: file offset
271 * @swtype: type of software module reading
272 * @swid: id of software which should be read
273 *
274 * Transfers @count bytes at offset @offset from IOP into buffer using
275 * type @swtype and id @swid as described in I2O spec.
276 *
277 * Returns number of bytes copied into buffer or error code on failure.
278 */
279static ssize_t i2o_config_sw_read(struct file *file, char __user * buf,
280 size_t count, loff_t * offset, u8 swtype,
281 u32 swid)
282{
283 struct sysfs_dirent *sd = file->f_dentry->d_parent->d_fsdata;
284 struct kobject *kobj = sd->s_element;
285 struct i2o_controller *c = kobj_to_i2o_device(kobj)->iop;
286 u32 m, function = I2O_CMD_SW_UPLOAD;
287 struct i2o_dma buffer;
288 struct i2o_message __iomem *msg;
289 u32 __iomem *mptr;
290 int rc, status;
291
292 m = i2o_msg_get_wait(c, &msg, I2O_TIMEOUT_MESSAGE_GET);
293 if (m == I2O_QUEUE_EMPTY)
294 return -EBUSY;
295
296 mptr = &msg->body[3];
297
298 if ((rc = i2o_dma_alloc(&c->pdev->dev, &buffer, count, GFP_KERNEL))) {
299 i2o_msg_nop(c, m);
300 return rc;
301 }
302#ifdef CONFIG_I2O_EXT_ADAPTEC
303 if (c->adaptec) {
304 mptr = &msg->body[4];
305 function = I2O_CMD_PRIVATE;
306
307 writel(TEN_WORD_MSG_SIZE | SGL_OFFSET_8, &msg->u.head[0]);
308
309 writel(I2O_VENDOR_DPT << 16 | I2O_DPT_FLASH_READ,
310 &msg->body[0]);
311 writel(i2o_config_dpt_region(swtype, swid), &msg->body[1]);
312 writel(*offset, &msg->body[2]);
313 writel(count, &msg->body[3]);
314 } else
315#endif
316 writel(NINE_WORD_MSG_SIZE | SGL_OFFSET_7, &msg->u.head[0]);
317
318 writel(0xD0000000 | count, mptr++);
319 writel(buffer.phys, mptr);
320
321 writel(function << 24 | HOST_TID << 12 | ADAPTER_TID, &msg->u.head[1]);
322 writel(i2o_config_driver.context, &msg->u.head[2]);
323 writel(0, &msg->u.head[3]);
324
325#ifdef CONFIG_I2O_EXT_ADAPTEC
326 if (!c->adaptec)
327#endif
328 {
329 writel((u32) swtype << 16 | (u32) 1 << 8, &msg->body[0]);
330 writel(0, &msg->body[1]);
331 writel(swid, &msg->body[2]);
332 }
333
334 status = i2o_msg_post_wait_mem(c, m, 60, &buffer);
335
336 if (status == I2O_POST_WAIT_OK) {
337 if (!(rc = copy_to_user(buf, buffer.virt, count))) {
338 rc = count;
339 *offset += count;
340 }
341 } else
342 rc = -EIO;
343
344 if (status != -ETIMEDOUT)
345 i2o_dma_free(&c->pdev->dev, &buffer);
346
347 return rc;
348};
349
350/**
351 * i2o_config_sw_write - Write a software module to controller
352 * @file: file pointer
353 * @buf: buffer into which the data should be copied
354 * @count: number of bytes to read
355 * @off: file offset
356 * @swtype: type of software module writing
357 * @swid: id of software which should be written
358 *
359 * Transfers @count bytes at offset @offset from buffer to IOP using
360 * type @swtype and id @swid as described in I2O spec.
361 *
362 * Returns number of bytes copied from buffer or error code on failure.
363 */
364static ssize_t i2o_config_sw_write(struct file *file, const char __user * buf,
365 size_t count, loff_t * offset, u8 swtype,
366 u32 swid)
367{
368 struct sysfs_dirent *sd = file->f_dentry->d_parent->d_fsdata;
369 struct kobject *kobj = sd->s_element;
370 struct i2o_controller *c = kobj_to_i2o_device(kobj)->iop;
371 u32 m, function = I2O_CMD_SW_DOWNLOAD;
372 struct i2o_dma buffer;
373 struct i2o_message __iomem *msg;
374 u32 __iomem *mptr;
375 int rc, status;
376
377 m = i2o_msg_get_wait(c, &msg, I2O_TIMEOUT_MESSAGE_GET);
378 if (m == I2O_QUEUE_EMPTY)
379 return -EBUSY;
380
381 mptr = &msg->body[3];
382
383 if ((rc = i2o_dma_alloc(&c->pdev->dev, &buffer, count, GFP_KERNEL)))
384 goto nop_msg;
385
386 if ((rc = copy_from_user(buffer.virt, buf, count)))
387 goto free_buffer;
388
389#ifdef CONFIG_I2O_EXT_ADAPTEC
390 if (c->adaptec) {
391 mptr = &msg->body[4];
392 function = I2O_CMD_PRIVATE;
393
394 writel(TEN_WORD_MSG_SIZE | SGL_OFFSET_8, &msg->u.head[0]);
395
396 writel(I2O_VENDOR_DPT << 16 | I2O_DPT_FLASH_WRITE,
397 &msg->body[0]);
398 writel(i2o_config_dpt_region(swtype, swid), &msg->body[1]);
399 writel(*offset, &msg->body[2]);
400 writel(count, &msg->body[3]);
401 } else
402#endif
403 writel(NINE_WORD_MSG_SIZE | SGL_OFFSET_7, &msg->u.head[0]);
404
405 writel(0xD4000000 | count, mptr++);
406 writel(buffer.phys, mptr);
407
408 writel(function << 24 | HOST_TID << 12 | ADAPTER_TID, &msg->u.head[1]);
409 writel(i2o_config_driver.context, &msg->u.head[2]);
410 writel(0, &msg->u.head[3]);
411
412#ifdef CONFIG_I2O_EXT_ADAPTEC
413 if (!c->adaptec)
414#endif
415 {
416 writel((u32) swtype << 16 | (u32) 1 << 8, &msg->body[0]);
417 writel(0, &msg->body[1]);
418 writel(swid, &msg->body[2]);
419 }
420
421 status = i2o_msg_post_wait_mem(c, m, 60, &buffer);
422
423 if (status != -ETIMEDOUT)
424 i2o_dma_free(&c->pdev->dev, &buffer);
425
426 if (status != I2O_POST_WAIT_OK)
427 return -EIO;
428
429 *offset += count;
430
431 return count;
432
433 free_buffer:
434 i2o_dma_free(&c->pdev->dev, &buffer);
435
436 nop_msg:
437 i2o_msg_nop(c, m);
438
439 return rc;
440};
441
442/* attribute for HRT in sysfs */
443static struct bin_attribute i2o_config_hrt_attr = {
444 .attr = {
445 .name = "hrt",
446 .mode = S_IRUGO,
447 .owner = THIS_MODULE},
448 .size = 0,
449 .read = i2o_config_read_hrt
450};
451
452/* attribute for LCT in sysfs */
453static struct bin_attribute i2o_config_lct_attr = {
454 .attr = {
455 .name = "lct",
456 .mode = S_IRUGO,
457 .owner = THIS_MODULE},
458 .size = 0,
459 .read = i2o_config_read_lct
460};
461
462/* IRTOS firmware access */
463I2O_CONFIG_SW_ATTR(irtos, S_IWRSR, I2O_SOFTWARE_MODULE_IRTOS, 0);
464
465#ifdef CONFIG_I2O_EXT_ADAPTEC
466
467/*
468 * attribute for BIOS / SMOR, nvram and serial number access on DPT / Adaptec
469 * controllers
470 */
471I2O_CONFIG_SW_ATTR(bios, S_IWRSR, I2O_SOFTWARE_MODULE_IOP_PRIVATE, 0);
472I2O_CONFIG_SW_ATTR(nvram, S_IWRSR, I2O_SOFTWARE_MODULE_IOP_CONFIG, 0);
473I2O_CONFIG_SW_ATTR(serial, S_IWRSR, I2O_SOFTWARE_MODULE_IOP_CONFIG, 1);
474
475#endif
476
477/**
478 * i2o_config_notify_controller_add - Notify of added controller
479 * @c: the controller which was added
480 *
481 * If a I2O controller is added, we catch the notification to add sysfs
482 * entries.
483 */
484static void i2o_config_notify_controller_add(struct i2o_controller *c)
485{
486 struct kobject *kobj = &c->exec->device.kobj;
487
488 sysfs_create_bin_file(kobj, &i2o_config_hrt_attr);
489 sysfs_create_bin_file(kobj, &i2o_config_lct_attr);
490
491 sysfs_create_fops_file(kobj, &i2o_config_attr_irtos);
492#ifdef CONFIG_I2O_EXT_ADAPTEC
493 if (c->adaptec) {
494 sysfs_create_fops_file(kobj, &i2o_config_attr_bios);
495 sysfs_create_fops_file(kobj, &i2o_config_attr_nvram);
496 sysfs_create_fops_file(kobj, &i2o_config_attr_serial);
497 }
498#endif
499};
500
501/**
502 * i2o_config_notify_controller_remove - Notify of removed controller
503 * @c: the controller which was removed
504 *
505 * If a I2O controller is removed, we catch the notification to remove the
506 * sysfs entries.
507 */
508static void i2o_config_notify_controller_remove(struct i2o_controller *c)
509{
510 struct kobject *kobj = &c->exec->device.kobj;
511
512#ifdef CONFIG_I2O_EXT_ADAPTEC
513 if (c->adaptec) {
514 sysfs_remove_fops_file(kobj, &i2o_config_attr_serial);
515 sysfs_remove_fops_file(kobj, &i2o_config_attr_nvram);
516 sysfs_remove_fops_file(kobj, &i2o_config_attr_bios);
517 }
518#endif
519 sysfs_remove_fops_file(kobj, &i2o_config_attr_irtos);
520
521 sysfs_remove_bin_file(kobj, &i2o_config_lct_attr);
522 sysfs_remove_bin_file(kobj, &i2o_config_hrt_attr);
523};
524
525/* Config OSM driver struct */ 33/* Config OSM driver struct */
526static struct i2o_driver i2o_config_driver = { 34static struct i2o_driver i2o_config_driver = {
527 .name = OSM_NAME, 35 .name = OSM_NAME,
528 .notify_controller_add = i2o_config_notify_controller_add,
529 .notify_controller_remove = i2o_config_notify_controller_remove
530}; 36};
531 37
532#ifdef CONFIG_I2O_CONFIG_OLD_IOCTL 38#ifdef CONFIG_I2O_CONFIG_OLD_IOCTL
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