Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * I2O Configuration Interface Driver | |
3 | * | |
4 | * (C) Copyright 1999-2002 Red Hat | |
5 | * | |
6 | * Written by Alan Cox, Building Number Three Ltd | |
7 | * | |
8 | * Fixes/additions: | |
9 | * Deepak Saxena (04/20/1999): | |
10 | * Added basic ioctl() support | |
11 | * Deepak Saxena (06/07/1999): | |
12 | * Added software download ioctl (still testing) | |
96de0e25 | 13 | * Auvo Häkkinen (09/10/1999): |
1da177e4 LT |
14 | * Changes to i2o_cfg_reply(), ioctl_parms() |
15 | * Added ioct_validate() | |
96de0e25 | 16 | * Taneli Vähäkangas (09/30/1999): |
1da177e4 | 17 | * Fixed ioctl_swdl() |
96de0e25 | 18 | * Taneli Vähäkangas (10/04/1999): |
1da177e4 LT |
19 | * Changed ioctl_swdl(), implemented ioctl_swul() and ioctl_swdel() |
20 | * Deepak Saxena (11/18/1999): | |
21 | * Added event managmenet support | |
f1b11e50 | 22 | * Alan Cox <alan@lxorguk.ukuu.org.uk>: |
1da177e4 LT |
23 | * 2.4 rewrite ported to 2.5 |
24 | * Markus Lidel <Markus.Lidel@shadowconnect.com>: | |
25 | * Added pass-thru support for Adaptec's raidutils | |
26 | * | |
27 | * This program is free software; you can redistribute it and/or | |
28 | * modify it under the terms of the GNU General Public License | |
29 | * as published by the Free Software Foundation; either version | |
30 | * 2 of the License, or (at your option) any later version. | |
31 | */ | |
32 | ||
1da177e4 | 33 | #include <linux/miscdevice.h> |
c45d15d2 | 34 | #include <linux/mutex.h> |
1da177e4 | 35 | #include <linux/compat.h> |
5a0e3ad6 | 36 | #include <linux/slab.h> |
1da177e4 LT |
37 | |
38 | #include <asm/uaccess.h> | |
1da177e4 | 39 | |
e62c23c7 | 40 | #include "core.h" |
1da177e4 | 41 | |
e62c23c7 | 42 | #define SG_TABLESIZE 30 |
dcceafe2 | 43 | |
c45d15d2 | 44 | static DEFINE_MUTEX(i2o_cfg_mutex); |
5d9d6e44 | 45 | static long i2o_cfg_ioctl(struct file *, unsigned int, unsigned long); |
f4c2c15b | 46 | |
1da177e4 LT |
47 | static spinlock_t i2o_config_lock; |
48 | ||
49 | #define MODINC(x,y) ((x) = ((x) + 1) % (y)) | |
50 | ||
51 | struct sg_simple_element { | |
52 | u32 flag_count; | |
53 | u32 addr_bus; | |
54 | }; | |
55 | ||
56 | struct i2o_cfg_info { | |
57 | struct file *fp; | |
58 | struct fasync_struct *fasync; | |
59 | struct i2o_evt_info event_q[I2O_EVT_Q_LEN]; | |
60 | u16 q_in; // Queue head index | |
61 | u16 q_out; // Queue tail index | |
62 | u16 q_len; // Queue length | |
63 | u16 q_lost; // Number of lost events | |
64 | ulong q_id; // Event queue ID...used as tx_context | |
65 | struct i2o_cfg_info *next; | |
66 | }; | |
67 | static struct i2o_cfg_info *open_files = NULL; | |
68 | static ulong i2o_cfg_info_id = 0; | |
69 | ||
1da177e4 LT |
70 | static int i2o_cfg_getiops(unsigned long arg) |
71 | { | |
72 | struct i2o_controller *c; | |
73 | u8 __user *user_iop_table = (void __user *)arg; | |
74 | u8 tmp[MAX_I2O_CONTROLLERS]; | |
75 | int ret = 0; | |
76 | ||
77 | memset(tmp, 0, MAX_I2O_CONTROLLERS); | |
78 | ||
79 | list_for_each_entry(c, &i2o_controllers, list) | |
80 | tmp[c->unit] = 1; | |
81 | ||
82 | if (copy_to_user(user_iop_table, tmp, MAX_I2O_CONTROLLERS)) | |
83 | ret = -EFAULT; | |
84 | ||
85 | return ret; | |
86 | }; | |
87 | ||
88 | static int i2o_cfg_gethrt(unsigned long arg) | |
89 | { | |
90 | struct i2o_controller *c; | |
91 | struct i2o_cmd_hrtlct __user *cmd = (struct i2o_cmd_hrtlct __user *)arg; | |
92 | struct i2o_cmd_hrtlct kcmd; | |
93 | i2o_hrt *hrt; | |
94 | int len; | |
95 | u32 reslen; | |
96 | int ret = 0; | |
97 | ||
98 | if (copy_from_user(&kcmd, cmd, sizeof(struct i2o_cmd_hrtlct))) | |
99 | return -EFAULT; | |
100 | ||
101 | if (get_user(reslen, kcmd.reslen) < 0) | |
102 | return -EFAULT; | |
103 | ||
104 | if (kcmd.resbuf == NULL) | |
105 | return -EFAULT; | |
106 | ||
107 | c = i2o_find_iop(kcmd.iop); | |
108 | if (!c) | |
109 | return -ENXIO; | |
110 | ||
111 | hrt = (i2o_hrt *) c->hrt.virt; | |
112 | ||
113 | len = 8 + ((hrt->entry_len * hrt->num_entries) << 2); | |
114 | ||
89596f20 KV |
115 | if (put_user(len, kcmd.reslen)) |
116 | ret = -EFAULT; | |
117 | else if (len > reslen) | |
1da177e4 | 118 | ret = -ENOBUFS; |
d929dc2b | 119 | else if (copy_to_user(kcmd.resbuf, (void *)hrt, len)) |
1da177e4 LT |
120 | ret = -EFAULT; |
121 | ||
122 | return ret; | |
123 | }; | |
124 | ||
125 | static int i2o_cfg_getlct(unsigned long arg) | |
126 | { | |
127 | struct i2o_controller *c; | |
128 | struct i2o_cmd_hrtlct __user *cmd = (struct i2o_cmd_hrtlct __user *)arg; | |
129 | struct i2o_cmd_hrtlct kcmd; | |
130 | i2o_lct *lct; | |
131 | int len; | |
132 | int ret = 0; | |
133 | u32 reslen; | |
134 | ||
135 | if (copy_from_user(&kcmd, cmd, sizeof(struct i2o_cmd_hrtlct))) | |
136 | return -EFAULT; | |
137 | ||
138 | if (get_user(reslen, kcmd.reslen) < 0) | |
139 | return -EFAULT; | |
140 | ||
141 | if (kcmd.resbuf == NULL) | |
142 | return -EFAULT; | |
143 | ||
144 | c = i2o_find_iop(kcmd.iop); | |
145 | if (!c) | |
146 | return -ENXIO; | |
147 | ||
148 | lct = (i2o_lct *) c->lct; | |
149 | ||
150 | len = (unsigned int)lct->table_size << 2; | |
89596f20 KV |
151 | if (put_user(len, kcmd.reslen)) |
152 | ret = -EFAULT; | |
153 | else if (len > reslen) | |
1da177e4 LT |
154 | ret = -ENOBUFS; |
155 | else if (copy_to_user(kcmd.resbuf, lct, len)) | |
156 | ret = -EFAULT; | |
157 | ||
158 | return ret; | |
159 | }; | |
160 | ||
161 | static int i2o_cfg_parms(unsigned long arg, unsigned int type) | |
162 | { | |
163 | int ret = 0; | |
164 | struct i2o_controller *c; | |
165 | struct i2o_device *dev; | |
166 | struct i2o_cmd_psetget __user *cmd = | |
167 | (struct i2o_cmd_psetget __user *)arg; | |
168 | struct i2o_cmd_psetget kcmd; | |
169 | u32 reslen; | |
170 | u8 *ops; | |
171 | u8 *res; | |
172 | int len = 0; | |
173 | ||
174 | u32 i2o_cmd = (type == I2OPARMGET ? | |
175 | I2O_CMD_UTIL_PARAMS_GET : I2O_CMD_UTIL_PARAMS_SET); | |
176 | ||
177 | if (copy_from_user(&kcmd, cmd, sizeof(struct i2o_cmd_psetget))) | |
178 | return -EFAULT; | |
179 | ||
180 | if (get_user(reslen, kcmd.reslen)) | |
181 | return -EFAULT; | |
182 | ||
183 | c = i2o_find_iop(kcmd.iop); | |
184 | if (!c) | |
185 | return -ENXIO; | |
186 | ||
187 | dev = i2o_iop_find_device(c, kcmd.tid); | |
188 | if (!dev) | |
189 | return -ENXIO; | |
190 | ||
b81d67a5 JL |
191 | ops = memdup_user(kcmd.opbuf, kcmd.oplen); |
192 | if (IS_ERR(ops)) | |
193 | return PTR_ERR(ops); | |
1da177e4 LT |
194 | |
195 | /* | |
196 | * It's possible to have a _very_ large table | |
197 | * and that the user asks for all of it at once... | |
198 | */ | |
5cbded58 | 199 | res = kmalloc(65536, GFP_KERNEL); |
1da177e4 LT |
200 | if (!res) { |
201 | kfree(ops); | |
202 | return -ENOMEM; | |
203 | } | |
204 | ||
205 | len = i2o_parm_issue(dev, i2o_cmd, ops, kcmd.oplen, res, 65536); | |
206 | kfree(ops); | |
207 | ||
208 | if (len < 0) { | |
209 | kfree(res); | |
210 | return -EAGAIN; | |
211 | } | |
212 | ||
89596f20 KV |
213 | if (put_user(len, kcmd.reslen)) |
214 | ret = -EFAULT; | |
215 | else if (len > reslen) | |
1da177e4 LT |
216 | ret = -ENOBUFS; |
217 | else if (copy_to_user(kcmd.resbuf, res, len)) | |
218 | ret = -EFAULT; | |
219 | ||
220 | kfree(res); | |
221 | ||
222 | return ret; | |
223 | }; | |
224 | ||
225 | static int i2o_cfg_swdl(unsigned long arg) | |
226 | { | |
227 | struct i2o_sw_xfer kxfer; | |
228 | struct i2o_sw_xfer __user *pxfer = (struct i2o_sw_xfer __user *)arg; | |
229 | unsigned char maxfrag = 0, curfrag = 1; | |
230 | struct i2o_dma buffer; | |
a1a5ea70 | 231 | struct i2o_message *msg; |
1da177e4 LT |
232 | unsigned int status = 0, swlen = 0, fragsize = 8192; |
233 | struct i2o_controller *c; | |
234 | ||
235 | if (copy_from_user(&kxfer, pxfer, sizeof(struct i2o_sw_xfer))) | |
236 | return -EFAULT; | |
237 | ||
238 | if (get_user(swlen, kxfer.swlen) < 0) | |
239 | return -EFAULT; | |
240 | ||
241 | if (get_user(maxfrag, kxfer.maxfrag) < 0) | |
242 | return -EFAULT; | |
243 | ||
244 | if (get_user(curfrag, kxfer.curfrag) < 0) | |
245 | return -EFAULT; | |
246 | ||
247 | if (curfrag == maxfrag) | |
248 | fragsize = swlen - (maxfrag - 1) * 8192; | |
249 | ||
250 | if (!kxfer.buf || !access_ok(VERIFY_READ, kxfer.buf, fragsize)) | |
251 | return -EFAULT; | |
252 | ||
253 | c = i2o_find_iop(kxfer.iop); | |
254 | if (!c) | |
255 | return -ENXIO; | |
256 | ||
a1a5ea70 ML |
257 | msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET); |
258 | if (IS_ERR(msg)) | |
259 | return PTR_ERR(msg); | |
1da177e4 | 260 | |
9d793b0b | 261 | if (i2o_dma_alloc(&c->pdev->dev, &buffer, fragsize)) { |
a1a5ea70 | 262 | i2o_msg_nop(c, msg); |
1da177e4 LT |
263 | return -ENOMEM; |
264 | } | |
265 | ||
9d69b7d3 RD |
266 | if (__copy_from_user(buffer.virt, kxfer.buf, fragsize)) { |
267 | i2o_msg_nop(c, msg); | |
268 | i2o_dma_free(&c->pdev->dev, &buffer); | |
269 | return -EFAULT; | |
270 | } | |
1da177e4 | 271 | |
a1a5ea70 ML |
272 | msg->u.head[0] = cpu_to_le32(NINE_WORD_MSG_SIZE | SGL_OFFSET_7); |
273 | msg->u.head[1] = | |
274 | cpu_to_le32(I2O_CMD_SW_DOWNLOAD << 24 | HOST_TID << 12 | | |
275 | ADAPTER_TID); | |
276 | msg->u.head[2] = cpu_to_le32(i2o_config_driver.context); | |
277 | msg->u.head[3] = cpu_to_le32(0); | |
278 | msg->body[0] = | |
279 | cpu_to_le32((((u32) kxfer.flags) << 24) | (((u32) kxfer. | |
280 | sw_type) << 16) | | |
281 | (((u32) maxfrag) << 8) | (((u32) curfrag))); | |
282 | msg->body[1] = cpu_to_le32(swlen); | |
283 | msg->body[2] = cpu_to_le32(kxfer.sw_id); | |
284 | msg->body[3] = cpu_to_le32(0xD0000000 | fragsize); | |
285 | msg->body[4] = cpu_to_le32(buffer.phys); | |
1da177e4 LT |
286 | |
287 | osm_debug("swdl frag %d/%d (size %d)\n", curfrag, maxfrag, fragsize); | |
a1a5ea70 | 288 | status = i2o_msg_post_wait_mem(c, msg, 60, &buffer); |
1da177e4 LT |
289 | |
290 | if (status != -ETIMEDOUT) | |
291 | i2o_dma_free(&c->pdev->dev, &buffer); | |
292 | ||
293 | if (status != I2O_POST_WAIT_OK) { | |
294 | // it fails if you try and send frags out of order | |
295 | // and for some yet unknown reasons too | |
296 | osm_info("swdl failed, DetailedStatus = %d\n", status); | |
297 | return status; | |
298 | } | |
299 | ||
300 | return 0; | |
301 | }; | |
302 | ||
303 | static int i2o_cfg_swul(unsigned long arg) | |
304 | { | |
305 | struct i2o_sw_xfer kxfer; | |
306 | struct i2o_sw_xfer __user *pxfer = (struct i2o_sw_xfer __user *)arg; | |
307 | unsigned char maxfrag = 0, curfrag = 1; | |
308 | struct i2o_dma buffer; | |
a1a5ea70 | 309 | struct i2o_message *msg; |
1da177e4 LT |
310 | unsigned int status = 0, swlen = 0, fragsize = 8192; |
311 | struct i2o_controller *c; | |
312 | int ret = 0; | |
313 | ||
314 | if (copy_from_user(&kxfer, pxfer, sizeof(struct i2o_sw_xfer))) | |
b1ffdc8f | 315 | return -EFAULT; |
1da177e4 LT |
316 | |
317 | if (get_user(swlen, kxfer.swlen) < 0) | |
b1ffdc8f | 318 | return -EFAULT; |
1da177e4 LT |
319 | |
320 | if (get_user(maxfrag, kxfer.maxfrag) < 0) | |
b1ffdc8f | 321 | return -EFAULT; |
1da177e4 LT |
322 | |
323 | if (get_user(curfrag, kxfer.curfrag) < 0) | |
b1ffdc8f | 324 | return -EFAULT; |
1da177e4 LT |
325 | |
326 | if (curfrag == maxfrag) | |
327 | fragsize = swlen - (maxfrag - 1) * 8192; | |
328 | ||
329 | if (!kxfer.buf) | |
b1ffdc8f | 330 | return -EFAULT; |
1da177e4 LT |
331 | |
332 | c = i2o_find_iop(kxfer.iop); | |
333 | if (!c) | |
334 | return -ENXIO; | |
335 | ||
a1a5ea70 ML |
336 | msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET); |
337 | if (IS_ERR(msg)) | |
338 | return PTR_ERR(msg); | |
1da177e4 | 339 | |
9d793b0b | 340 | if (i2o_dma_alloc(&c->pdev->dev, &buffer, fragsize)) { |
a1a5ea70 | 341 | i2o_msg_nop(c, msg); |
1da177e4 LT |
342 | return -ENOMEM; |
343 | } | |
344 | ||
a1a5ea70 ML |
345 | msg->u.head[0] = cpu_to_le32(NINE_WORD_MSG_SIZE | SGL_OFFSET_7); |
346 | msg->u.head[1] = | |
347 | cpu_to_le32(I2O_CMD_SW_UPLOAD << 24 | HOST_TID << 12 | ADAPTER_TID); | |
348 | msg->u.head[2] = cpu_to_le32(i2o_config_driver.context); | |
349 | msg->u.head[3] = cpu_to_le32(0); | |
350 | msg->body[0] = | |
351 | cpu_to_le32((u32) kxfer.flags << 24 | (u32) kxfer. | |
352 | sw_type << 16 | (u32) maxfrag << 8 | (u32) curfrag); | |
353 | msg->body[1] = cpu_to_le32(swlen); | |
354 | msg->body[2] = cpu_to_le32(kxfer.sw_id); | |
355 | msg->body[3] = cpu_to_le32(0xD0000000 | fragsize); | |
356 | msg->body[4] = cpu_to_le32(buffer.phys); | |
1da177e4 LT |
357 | |
358 | osm_debug("swul frag %d/%d (size %d)\n", curfrag, maxfrag, fragsize); | |
a1a5ea70 | 359 | status = i2o_msg_post_wait_mem(c, msg, 60, &buffer); |
1da177e4 LT |
360 | |
361 | if (status != I2O_POST_WAIT_OK) { | |
362 | if (status != -ETIMEDOUT) | |
363 | i2o_dma_free(&c->pdev->dev, &buffer); | |
364 | ||
365 | osm_info("swul failed, DetailedStatus = %d\n", status); | |
366 | return status; | |
367 | } | |
368 | ||
369 | if (copy_to_user(kxfer.buf, buffer.virt, fragsize)) | |
370 | ret = -EFAULT; | |
371 | ||
372 | i2o_dma_free(&c->pdev->dev, &buffer); | |
373 | ||
1da177e4 | 374 | return ret; |
b1ffdc8f | 375 | } |
1da177e4 LT |
376 | |
377 | static int i2o_cfg_swdel(unsigned long arg) | |
378 | { | |
379 | struct i2o_controller *c; | |
380 | struct i2o_sw_xfer kxfer; | |
381 | struct i2o_sw_xfer __user *pxfer = (struct i2o_sw_xfer __user *)arg; | |
a1a5ea70 | 382 | struct i2o_message *msg; |
1da177e4 LT |
383 | unsigned int swlen; |
384 | int token; | |
385 | ||
386 | if (copy_from_user(&kxfer, pxfer, sizeof(struct i2o_sw_xfer))) | |
387 | return -EFAULT; | |
388 | ||
389 | if (get_user(swlen, kxfer.swlen) < 0) | |
390 | return -EFAULT; | |
391 | ||
392 | c = i2o_find_iop(kxfer.iop); | |
393 | if (!c) | |
394 | return -ENXIO; | |
395 | ||
a1a5ea70 ML |
396 | msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET); |
397 | if (IS_ERR(msg)) | |
398 | return PTR_ERR(msg); | |
1da177e4 | 399 | |
a1a5ea70 ML |
400 | msg->u.head[0] = cpu_to_le32(SEVEN_WORD_MSG_SIZE | SGL_OFFSET_0); |
401 | msg->u.head[1] = | |
402 | cpu_to_le32(I2O_CMD_SW_REMOVE << 24 | HOST_TID << 12 | ADAPTER_TID); | |
403 | msg->u.head[2] = cpu_to_le32(i2o_config_driver.context); | |
404 | msg->u.head[3] = cpu_to_le32(0); | |
405 | msg->body[0] = | |
406 | cpu_to_le32((u32) kxfer.flags << 24 | (u32) kxfer.sw_type << 16); | |
407 | msg->body[1] = cpu_to_le32(swlen); | |
408 | msg->body[2] = cpu_to_le32(kxfer.sw_id); | |
1da177e4 | 409 | |
a1a5ea70 | 410 | token = i2o_msg_post_wait(c, msg, 10); |
1da177e4 LT |
411 | |
412 | if (token != I2O_POST_WAIT_OK) { | |
413 | osm_info("swdel failed, DetailedStatus = %d\n", token); | |
414 | return -ETIMEDOUT; | |
415 | } | |
416 | ||
417 | return 0; | |
418 | }; | |
419 | ||
420 | static int i2o_cfg_validate(unsigned long arg) | |
421 | { | |
422 | int token; | |
423 | int iop = (int)arg; | |
a1a5ea70 | 424 | struct i2o_message *msg; |
1da177e4 LT |
425 | struct i2o_controller *c; |
426 | ||
427 | c = i2o_find_iop(iop); | |
428 | if (!c) | |
429 | return -ENXIO; | |
430 | ||
a1a5ea70 ML |
431 | msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET); |
432 | if (IS_ERR(msg)) | |
433 | return PTR_ERR(msg); | |
1da177e4 | 434 | |
a1a5ea70 ML |
435 | msg->u.head[0] = cpu_to_le32(FOUR_WORD_MSG_SIZE | SGL_OFFSET_0); |
436 | msg->u.head[1] = | |
437 | cpu_to_le32(I2O_CMD_CONFIG_VALIDATE << 24 | HOST_TID << 12 | iop); | |
438 | msg->u.head[2] = cpu_to_le32(i2o_config_driver.context); | |
439 | msg->u.head[3] = cpu_to_le32(0); | |
1da177e4 | 440 | |
a1a5ea70 | 441 | token = i2o_msg_post_wait(c, msg, 10); |
1da177e4 LT |
442 | |
443 | if (token != I2O_POST_WAIT_OK) { | |
444 | osm_info("Can't validate configuration, ErrorStatus = %d\n", | |
445 | token); | |
446 | return -ETIMEDOUT; | |
447 | } | |
448 | ||
449 | return 0; | |
450 | }; | |
451 | ||
452 | static int i2o_cfg_evt_reg(unsigned long arg, struct file *fp) | |
453 | { | |
a1a5ea70 | 454 | struct i2o_message *msg; |
1da177e4 LT |
455 | struct i2o_evt_id __user *pdesc = (struct i2o_evt_id __user *)arg; |
456 | struct i2o_evt_id kdesc; | |
457 | struct i2o_controller *c; | |
458 | struct i2o_device *d; | |
459 | ||
460 | if (copy_from_user(&kdesc, pdesc, sizeof(struct i2o_evt_id))) | |
461 | return -EFAULT; | |
462 | ||
463 | /* IOP exists? */ | |
464 | c = i2o_find_iop(kdesc.iop); | |
465 | if (!c) | |
466 | return -ENXIO; | |
467 | ||
468 | /* Device exists? */ | |
469 | d = i2o_iop_find_device(c, kdesc.tid); | |
470 | if (!d) | |
471 | return -ENODEV; | |
472 | ||
a1a5ea70 ML |
473 | msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET); |
474 | if (IS_ERR(msg)) | |
475 | return PTR_ERR(msg); | |
1da177e4 | 476 | |
a1a5ea70 ML |
477 | msg->u.head[0] = cpu_to_le32(FOUR_WORD_MSG_SIZE | SGL_OFFSET_0); |
478 | msg->u.head[1] = | |
479 | cpu_to_le32(I2O_CMD_UTIL_EVT_REGISTER << 24 | HOST_TID << 12 | | |
480 | kdesc.tid); | |
481 | msg->u.head[2] = cpu_to_le32(i2o_config_driver.context); | |
482 | msg->u.head[3] = cpu_to_le32(i2o_cntxt_list_add(c, fp->private_data)); | |
483 | msg->body[0] = cpu_to_le32(kdesc.evt_mask); | |
1da177e4 | 484 | |
a1a5ea70 | 485 | i2o_msg_post(c, msg); |
1da177e4 LT |
486 | |
487 | return 0; | |
488 | } | |
489 | ||
490 | static int i2o_cfg_evt_get(unsigned long arg, struct file *fp) | |
491 | { | |
492 | struct i2o_cfg_info *p = NULL; | |
493 | struct i2o_evt_get __user *uget = (struct i2o_evt_get __user *)arg; | |
494 | struct i2o_evt_get kget; | |
495 | unsigned long flags; | |
496 | ||
497 | for (p = open_files; p; p = p->next) | |
498 | if (p->q_id == (ulong) fp->private_data) | |
499 | break; | |
500 | ||
501 | if (!p->q_len) | |
502 | return -ENOENT; | |
503 | ||
504 | memcpy(&kget.info, &p->event_q[p->q_out], sizeof(struct i2o_evt_info)); | |
505 | MODINC(p->q_out, I2O_EVT_Q_LEN); | |
506 | spin_lock_irqsave(&i2o_config_lock, flags); | |
507 | p->q_len--; | |
508 | kget.pending = p->q_len; | |
509 | kget.lost = p->q_lost; | |
510 | spin_unlock_irqrestore(&i2o_config_lock, flags); | |
511 | ||
512 | if (copy_to_user(uget, &kget, sizeof(struct i2o_evt_get))) | |
513 | return -EFAULT; | |
514 | return 0; | |
515 | } | |
516 | ||
517 | #ifdef CONFIG_COMPAT | |
f33213ec ML |
518 | static int i2o_cfg_passthru32(struct file *file, unsigned cmnd, |
519 | unsigned long arg) | |
1da177e4 LT |
520 | { |
521 | struct i2o_cmd_passthru32 __user *cmd; | |
522 | struct i2o_controller *c; | |
523 | u32 __user *user_msg; | |
524 | u32 *reply = NULL; | |
525 | u32 __user *user_reply = NULL; | |
526 | u32 size = 0; | |
527 | u32 reply_size = 0; | |
528 | u32 rcode = 0; | |
529 | struct i2o_dma sg_list[SG_TABLESIZE]; | |
530 | u32 sg_offset = 0; | |
531 | u32 sg_count = 0; | |
532 | u32 i = 0; | |
61fbfa81 | 533 | u32 sg_index = 0; |
1da177e4 LT |
534 | i2o_status_block *sb; |
535 | struct i2o_message *msg; | |
1da177e4 LT |
536 | unsigned int iop; |
537 | ||
538 | cmd = (struct i2o_cmd_passthru32 __user *)arg; | |
539 | ||
540 | if (get_user(iop, &cmd->iop) || get_user(i, &cmd->msg)) | |
541 | return -EFAULT; | |
542 | ||
543 | user_msg = compat_ptr(i); | |
544 | ||
545 | c = i2o_find_iop(iop); | |
546 | if (!c) { | |
547 | osm_debug("controller %d not found\n", iop); | |
548 | return -ENXIO; | |
549 | } | |
550 | ||
1da177e4 LT |
551 | sb = c->status_block.virt; |
552 | ||
553 | if (get_user(size, &user_msg[0])) { | |
554 | osm_warn("unable to get size!\n"); | |
555 | return -EFAULT; | |
556 | } | |
557 | size = size >> 16; | |
558 | ||
559 | if (size > sb->inbound_frame_size) { | |
560 | osm_warn("size of message > inbound_frame_size"); | |
561 | return -EFAULT; | |
562 | } | |
563 | ||
564 | user_reply = &user_msg[size]; | |
565 | ||
566 | size <<= 2; // Convert to bytes | |
567 | ||
1725d71d VA |
568 | msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET); |
569 | if (IS_ERR(msg)) | |
570 | return PTR_ERR(msg); | |
571 | ||
572 | rcode = -EFAULT; | |
1da177e4 LT |
573 | /* Copy in the user's I2O command */ |
574 | if (copy_from_user(msg, user_msg, size)) { | |
575 | osm_warn("unable to copy user message\n"); | |
1725d71d | 576 | goto out; |
1da177e4 LT |
577 | } |
578 | i2o_dump_message(msg); | |
579 | ||
580 | if (get_user(reply_size, &user_reply[0]) < 0) | |
1725d71d | 581 | goto out; |
1da177e4 LT |
582 | |
583 | reply_size >>= 16; | |
584 | reply_size <<= 2; | |
585 | ||
1725d71d | 586 | rcode = -ENOMEM; |
f6ed39a6 | 587 | reply = kzalloc(reply_size, GFP_KERNEL); |
1da177e4 LT |
588 | if (!reply) { |
589 | printk(KERN_WARNING "%s: Could not allocate reply buffer\n", | |
590 | c->name); | |
1725d71d | 591 | goto out; |
1da177e4 | 592 | } |
1da177e4 LT |
593 | |
594 | sg_offset = (msg->u.head[0] >> 4) & 0x0f; | |
595 | ||
1da177e4 LT |
596 | memset(sg_list, 0, sizeof(sg_list[0]) * SG_TABLESIZE); |
597 | if (sg_offset) { | |
598 | struct sg_simple_element *sg; | |
599 | ||
600 | if (sg_offset * 4 >= size) { | |
601 | rcode = -EFAULT; | |
602 | goto cleanup; | |
603 | } | |
604 | // TODO 64bit fix | |
605 | sg = (struct sg_simple_element *)((&msg->u.head[0]) + | |
606 | sg_offset); | |
607 | sg_count = | |
608 | (size - sg_offset * 4) / sizeof(struct sg_simple_element); | |
609 | if (sg_count > SG_TABLESIZE) { | |
610 | printk(KERN_DEBUG "%s:IOCTL SG List too large (%u)\n", | |
611 | c->name, sg_count); | |
61fbfa81 ML |
612 | rcode = -EINVAL; |
613 | goto cleanup; | |
1da177e4 LT |
614 | } |
615 | ||
616 | for (i = 0; i < sg_count; i++) { | |
617 | int sg_size; | |
618 | struct i2o_dma *p; | |
619 | ||
620 | if (!(sg[i].flag_count & 0x10000000 | |
621 | /*I2O_SGL_FLAGS_SIMPLE_ADDRESS_ELEMENT */ )) { | |
622 | printk(KERN_DEBUG | |
623 | "%s:Bad SG element %d - not simple (%x)\n", | |
624 | c->name, i, sg[i].flag_count); | |
625 | rcode = -EINVAL; | |
626 | goto cleanup; | |
627 | } | |
628 | sg_size = sg[i].flag_count & 0xffffff; | |
dcceafe2 | 629 | p = &(sg_list[sg_index]); |
1da177e4 | 630 | /* Allocate memory for the transfer */ |
9d793b0b | 631 | if (i2o_dma_alloc(&c->pdev->dev, p, sg_size)) { |
1da177e4 LT |
632 | printk(KERN_DEBUG |
633 | "%s: Could not allocate SG buffer - size = %d buffer number %d of %d\n", | |
634 | c->name, sg_size, i, sg_count); | |
635 | rcode = -ENOMEM; | |
61fbfa81 | 636 | goto sg_list_cleanup; |
1da177e4 | 637 | } |
dcceafe2 | 638 | sg_index++; |
1da177e4 LT |
639 | /* Copy in the user's SG buffer if necessary */ |
640 | if (sg[i]. | |
641 | flag_count & 0x04000000 /*I2O_SGL_FLAGS_DIR */ ) { | |
642 | // TODO 64bit fix | |
643 | if (copy_from_user | |
f33213ec ML |
644 | (p->virt, |
645 | (void __user *)(unsigned long)sg[i]. | |
646 | addr_bus, sg_size)) { | |
1da177e4 LT |
647 | printk(KERN_DEBUG |
648 | "%s: Could not copy SG buf %d FROM user\n", | |
649 | c->name, i); | |
650 | rcode = -EFAULT; | |
61fbfa81 | 651 | goto sg_list_cleanup; |
1da177e4 LT |
652 | } |
653 | } | |
654 | //TODO 64bit fix | |
655 | sg[i].addr_bus = (u32) p->phys; | |
656 | } | |
657 | } | |
658 | ||
a1a5ea70 | 659 | rcode = i2o_msg_post_wait(c, msg, 60); |
1725d71d | 660 | msg = NULL; |
dcceafe2 ML |
661 | if (rcode) { |
662 | reply[4] = ((u32) rcode) << 24; | |
61fbfa81 | 663 | goto sg_list_cleanup; |
dcceafe2 | 664 | } |
1da177e4 LT |
665 | |
666 | if (sg_offset) { | |
1725d71d | 667 | u32 rmsg[I2O_OUTBOUND_MSG_FRAME_SIZE]; |
1da177e4 LT |
668 | /* Copy back the Scatter Gather buffers back to user space */ |
669 | u32 j; | |
670 | // TODO 64bit fix | |
671 | struct sg_simple_element *sg; | |
672 | int sg_size; | |
673 | ||
674 | // re-acquire the original message to handle correctly the sg copy operation | |
1725d71d | 675 | memset(&rmsg, 0, I2O_OUTBOUND_MSG_FRAME_SIZE * 4); |
1da177e4 LT |
676 | // get user msg size in u32s |
677 | if (get_user(size, &user_msg[0])) { | |
678 | rcode = -EFAULT; | |
61fbfa81 | 679 | goto sg_list_cleanup; |
1da177e4 LT |
680 | } |
681 | size = size >> 16; | |
682 | size *= 4; | |
683 | /* Copy in the user's I2O command */ | |
1725d71d | 684 | if (copy_from_user(rmsg, user_msg, size)) { |
1da177e4 | 685 | rcode = -EFAULT; |
61fbfa81 | 686 | goto sg_list_cleanup; |
1da177e4 LT |
687 | } |
688 | sg_count = | |
689 | (size - sg_offset * 4) / sizeof(struct sg_simple_element); | |
690 | ||
691 | // TODO 64bit fix | |
1725d71d | 692 | sg = (struct sg_simple_element *)(rmsg + sg_offset); |
1da177e4 LT |
693 | for (j = 0; j < sg_count; j++) { |
694 | /* Copy out the SG list to user's buffer if necessary */ | |
695 | if (! | |
696 | (sg[j]. | |
697 | flag_count & 0x4000000 /*I2O_SGL_FLAGS_DIR */ )) { | |
698 | sg_size = sg[j].flag_count & 0xffffff; | |
699 | // TODO 64bit fix | |
700 | if (copy_to_user | |
701 | ((void __user *)(u64) sg[j].addr_bus, | |
702 | sg_list[j].virt, sg_size)) { | |
703 | printk(KERN_WARNING | |
704 | "%s: Could not copy %p TO user %x\n", | |
705 | c->name, sg_list[j].virt, | |
706 | sg[j].addr_bus); | |
707 | rcode = -EFAULT; | |
61fbfa81 | 708 | goto sg_list_cleanup; |
1da177e4 LT |
709 | } |
710 | } | |
711 | } | |
712 | } | |
713 | ||
1725d71d | 714 | sg_list_cleanup: |
1da177e4 LT |
715 | /* Copy back the reply to user space */ |
716 | if (reply_size) { | |
717 | // we wrote our own values for context - now restore the user supplied ones | |
718 | if (copy_from_user(reply + 2, user_msg + 2, sizeof(u32) * 2)) { | |
719 | printk(KERN_WARNING | |
720 | "%s: Could not copy message context FROM user\n", | |
721 | c->name); | |
722 | rcode = -EFAULT; | |
723 | } | |
724 | if (copy_to_user(user_reply, reply, reply_size)) { | |
725 | printk(KERN_WARNING | |
726 | "%s: Could not copy reply TO user\n", c->name); | |
727 | rcode = -EFAULT; | |
728 | } | |
729 | } | |
61fbfa81 ML |
730 | for (i = 0; i < sg_index; i++) |
731 | i2o_dma_free(&c->pdev->dev, &sg_list[i]); | |
732 | ||
1725d71d | 733 | cleanup: |
1da177e4 | 734 | kfree(reply); |
1725d71d VA |
735 | out: |
736 | if (msg) | |
737 | i2o_msg_nop(c, msg); | |
1da177e4 LT |
738 | return rcode; |
739 | } | |
740 | ||
f33213ec ML |
741 | static long i2o_cfg_compat_ioctl(struct file *file, unsigned cmd, |
742 | unsigned long arg) | |
f4c2c15b | 743 | { |
744 | int ret; | |
c45d15d2 | 745 | mutex_lock(&i2o_cfg_mutex); |
f33213ec | 746 | switch (cmd) { |
f4c2c15b | 747 | case I2OGETIOPS: |
5d9d6e44 | 748 | ret = i2o_cfg_ioctl(file, cmd, arg); |
f4c2c15b | 749 | break; |
750 | case I2OPASSTHRU32: | |
751 | ret = i2o_cfg_passthru32(file, cmd, arg); | |
752 | break; | |
753 | default: | |
754 | ret = -ENOIOCTLCMD; | |
755 | break; | |
756 | } | |
c45d15d2 | 757 | mutex_unlock(&i2o_cfg_mutex); |
f4c2c15b | 758 | return ret; |
759 | } | |
760 | ||
761 | #endif | |
1da177e4 | 762 | |
f13a6037 | 763 | #ifdef CONFIG_I2O_EXT_ADAPTEC |
1da177e4 LT |
764 | static int i2o_cfg_passthru(unsigned long arg) |
765 | { | |
766 | struct i2o_cmd_passthru __user *cmd = | |
767 | (struct i2o_cmd_passthru __user *)arg; | |
768 | struct i2o_controller *c; | |
769 | u32 __user *user_msg; | |
770 | u32 *reply = NULL; | |
771 | u32 __user *user_reply = NULL; | |
772 | u32 size = 0; | |
773 | u32 reply_size = 0; | |
774 | u32 rcode = 0; | |
9d793b0b | 775 | struct i2o_dma sg_list[SG_TABLESIZE]; |
1da177e4 LT |
776 | u32 sg_offset = 0; |
777 | u32 sg_count = 0; | |
778 | int sg_index = 0; | |
779 | u32 i = 0; | |
1da177e4 | 780 | i2o_status_block *sb; |
a1a5ea70 | 781 | struct i2o_message *msg; |
1da177e4 LT |
782 | unsigned int iop; |
783 | ||
784 | if (get_user(iop, &cmd->iop) || get_user(user_msg, &cmd->msg)) | |
785 | return -EFAULT; | |
786 | ||
787 | c = i2o_find_iop(iop); | |
788 | if (!c) { | |
789 | osm_warn("controller %d not found\n", iop); | |
790 | return -ENXIO; | |
791 | } | |
792 | ||
1da177e4 LT |
793 | sb = c->status_block.virt; |
794 | ||
795 | if (get_user(size, &user_msg[0])) | |
796 | return -EFAULT; | |
797 | size = size >> 16; | |
798 | ||
799 | if (size > sb->inbound_frame_size) { | |
800 | osm_warn("size of message > inbound_frame_size"); | |
801 | return -EFAULT; | |
802 | } | |
803 | ||
804 | user_reply = &user_msg[size]; | |
805 | ||
806 | size <<= 2; // Convert to bytes | |
807 | ||
1725d71d VA |
808 | msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET); |
809 | if (IS_ERR(msg)) | |
810 | return PTR_ERR(msg); | |
811 | ||
812 | rcode = -EFAULT; | |
1da177e4 LT |
813 | /* Copy in the user's I2O command */ |
814 | if (copy_from_user(msg, user_msg, size)) | |
1725d71d | 815 | goto out; |
1da177e4 LT |
816 | |
817 | if (get_user(reply_size, &user_reply[0]) < 0) | |
1725d71d | 818 | goto out; |
1da177e4 LT |
819 | |
820 | reply_size >>= 16; | |
821 | reply_size <<= 2; | |
822 | ||
f6ed39a6 | 823 | reply = kzalloc(reply_size, GFP_KERNEL); |
1da177e4 LT |
824 | if (!reply) { |
825 | printk(KERN_WARNING "%s: Could not allocate reply buffer\n", | |
826 | c->name); | |
1725d71d VA |
827 | rcode = -ENOMEM; |
828 | goto out; | |
1da177e4 | 829 | } |
1da177e4 LT |
830 | |
831 | sg_offset = (msg->u.head[0] >> 4) & 0x0f; | |
832 | ||
1da177e4 LT |
833 | memset(sg_list, 0, sizeof(sg_list[0]) * SG_TABLESIZE); |
834 | if (sg_offset) { | |
835 | struct sg_simple_element *sg; | |
9d793b0b | 836 | struct i2o_dma *p; |
1da177e4 LT |
837 | |
838 | if (sg_offset * 4 >= size) { | |
839 | rcode = -EFAULT; | |
840 | goto cleanup; | |
841 | } | |
842 | // TODO 64bit fix | |
843 | sg = (struct sg_simple_element *)((&msg->u.head[0]) + | |
844 | sg_offset); | |
845 | sg_count = | |
846 | (size - sg_offset * 4) / sizeof(struct sg_simple_element); | |
847 | if (sg_count > SG_TABLESIZE) { | |
848 | printk(KERN_DEBUG "%s:IOCTL SG List too large (%u)\n", | |
849 | c->name, sg_count); | |
61fbfa81 ML |
850 | rcode = -EINVAL; |
851 | goto cleanup; | |
1da177e4 LT |
852 | } |
853 | ||
854 | for (i = 0; i < sg_count; i++) { | |
855 | int sg_size; | |
856 | ||
857 | if (!(sg[i].flag_count & 0x10000000 | |
858 | /*I2O_SGL_FLAGS_SIMPLE_ADDRESS_ELEMENT */ )) { | |
859 | printk(KERN_DEBUG | |
860 | "%s:Bad SG element %d - not simple (%x)\n", | |
861 | c->name, i, sg[i].flag_count); | |
862 | rcode = -EINVAL; | |
61fbfa81 | 863 | goto sg_list_cleanup; |
1da177e4 LT |
864 | } |
865 | sg_size = sg[i].flag_count & 0xffffff; | |
9d793b0b AC |
866 | p = &(sg_list[sg_index]); |
867 | if (i2o_dma_alloc(&c->pdev->dev, p, sg_size)) { | |
1da177e4 | 868 | /* Allocate memory for the transfer */ |
1da177e4 LT |
869 | printk(KERN_DEBUG |
870 | "%s: Could not allocate SG buffer - size = %d buffer number %d of %d\n", | |
871 | c->name, sg_size, i, sg_count); | |
872 | rcode = -ENOMEM; | |
61fbfa81 | 873 | goto sg_list_cleanup; |
1da177e4 | 874 | } |
9d793b0b | 875 | sg_index++; |
1da177e4 LT |
876 | /* Copy in the user's SG buffer if necessary */ |
877 | if (sg[i]. | |
878 | flag_count & 0x04000000 /*I2O_SGL_FLAGS_DIR */ ) { | |
879 | // TODO 64bit fix | |
880 | if (copy_from_user | |
9d793b0b | 881 | (p->virt, (void __user *)sg[i].addr_bus, |
1da177e4 LT |
882 | sg_size)) { |
883 | printk(KERN_DEBUG | |
884 | "%s: Could not copy SG buf %d FROM user\n", | |
885 | c->name, i); | |
886 | rcode = -EFAULT; | |
61fbfa81 | 887 | goto sg_list_cleanup; |
1da177e4 LT |
888 | } |
889 | } | |
9d793b0b | 890 | sg[i].addr_bus = p->phys; |
1da177e4 LT |
891 | } |
892 | } | |
893 | ||
a1a5ea70 | 894 | rcode = i2o_msg_post_wait(c, msg, 60); |
1725d71d | 895 | msg = NULL; |
dcceafe2 ML |
896 | if (rcode) { |
897 | reply[4] = ((u32) rcode) << 24; | |
61fbfa81 | 898 | goto sg_list_cleanup; |
dcceafe2 | 899 | } |
1da177e4 LT |
900 | |
901 | if (sg_offset) { | |
9d793b0b | 902 | u32 rmsg[I2O_OUTBOUND_MSG_FRAME_SIZE]; |
1da177e4 LT |
903 | /* Copy back the Scatter Gather buffers back to user space */ |
904 | u32 j; | |
905 | // TODO 64bit fix | |
906 | struct sg_simple_element *sg; | |
907 | int sg_size; | |
908 | ||
909 | // re-acquire the original message to handle correctly the sg copy operation | |
1725d71d | 910 | memset(&rmsg, 0, I2O_OUTBOUND_MSG_FRAME_SIZE * 4); |
1da177e4 LT |
911 | // get user msg size in u32s |
912 | if (get_user(size, &user_msg[0])) { | |
913 | rcode = -EFAULT; | |
61fbfa81 | 914 | goto sg_list_cleanup; |
1da177e4 LT |
915 | } |
916 | size = size >> 16; | |
917 | size *= 4; | |
918 | /* Copy in the user's I2O command */ | |
1725d71d | 919 | if (copy_from_user(rmsg, user_msg, size)) { |
1da177e4 | 920 | rcode = -EFAULT; |
61fbfa81 | 921 | goto sg_list_cleanup; |
1da177e4 LT |
922 | } |
923 | sg_count = | |
924 | (size - sg_offset * 4) / sizeof(struct sg_simple_element); | |
925 | ||
926 | // TODO 64bit fix | |
1725d71d | 927 | sg = (struct sg_simple_element *)(rmsg + sg_offset); |
1da177e4 LT |
928 | for (j = 0; j < sg_count; j++) { |
929 | /* Copy out the SG list to user's buffer if necessary */ | |
930 | if (! | |
931 | (sg[j]. | |
932 | flag_count & 0x4000000 /*I2O_SGL_FLAGS_DIR */ )) { | |
933 | sg_size = sg[j].flag_count & 0xffffff; | |
934 | // TODO 64bit fix | |
935 | if (copy_to_user | |
9d793b0b | 936 | ((void __user *)sg[j].addr_bus, sg_list[j].virt, |
1da177e4 LT |
937 | sg_size)) { |
938 | printk(KERN_WARNING | |
939 | "%s: Could not copy %p TO user %x\n", | |
9d793b0b | 940 | c->name, sg_list[j].virt, |
1da177e4 LT |
941 | sg[j].addr_bus); |
942 | rcode = -EFAULT; | |
61fbfa81 | 943 | goto sg_list_cleanup; |
1da177e4 LT |
944 | } |
945 | } | |
946 | } | |
947 | } | |
948 | ||
1725d71d | 949 | sg_list_cleanup: |
1da177e4 LT |
950 | /* Copy back the reply to user space */ |
951 | if (reply_size) { | |
952 | // we wrote our own values for context - now restore the user supplied ones | |
953 | if (copy_from_user(reply + 2, user_msg + 2, sizeof(u32) * 2)) { | |
954 | printk(KERN_WARNING | |
955 | "%s: Could not copy message context FROM user\n", | |
956 | c->name); | |
957 | rcode = -EFAULT; | |
958 | } | |
959 | if (copy_to_user(user_reply, reply, reply_size)) { | |
960 | printk(KERN_WARNING | |
961 | "%s: Could not copy reply TO user\n", c->name); | |
962 | rcode = -EFAULT; | |
963 | } | |
964 | } | |
965 | ||
61fbfa81 | 966 | for (i = 0; i < sg_index; i++) |
9d793b0b | 967 | i2o_dma_free(&c->pdev->dev, &sg_list[i]); |
61fbfa81 | 968 | |
1725d71d | 969 | cleanup: |
1da177e4 | 970 | kfree(reply); |
1725d71d VA |
971 | out: |
972 | if (msg) | |
973 | i2o_msg_nop(c, msg); | |
1da177e4 LT |
974 | return rcode; |
975 | } | |
b2aaee33 | 976 | #endif |
1da177e4 LT |
977 | |
978 | /* | |
979 | * IOCTL Handler | |
980 | */ | |
5d9d6e44 | 981 | static long i2o_cfg_ioctl(struct file *fp, unsigned int cmd, unsigned long arg) |
1da177e4 LT |
982 | { |
983 | int ret; | |
984 | ||
c45d15d2 | 985 | mutex_lock(&i2o_cfg_mutex); |
1da177e4 LT |
986 | switch (cmd) { |
987 | case I2OGETIOPS: | |
988 | ret = i2o_cfg_getiops(arg); | |
989 | break; | |
990 | ||
991 | case I2OHRTGET: | |
992 | ret = i2o_cfg_gethrt(arg); | |
993 | break; | |
994 | ||
995 | case I2OLCTGET: | |
996 | ret = i2o_cfg_getlct(arg); | |
997 | break; | |
998 | ||
999 | case I2OPARMSET: | |
1000 | ret = i2o_cfg_parms(arg, I2OPARMSET); | |
1001 | break; | |
1002 | ||
1003 | case I2OPARMGET: | |
1004 | ret = i2o_cfg_parms(arg, I2OPARMGET); | |
1005 | break; | |
1006 | ||
1007 | case I2OSWDL: | |
1008 | ret = i2o_cfg_swdl(arg); | |
1009 | break; | |
1010 | ||
1011 | case I2OSWUL: | |
1012 | ret = i2o_cfg_swul(arg); | |
1013 | break; | |
1014 | ||
1015 | case I2OSWDEL: | |
1016 | ret = i2o_cfg_swdel(arg); | |
1017 | break; | |
1018 | ||
1019 | case I2OVALIDATE: | |
1020 | ret = i2o_cfg_validate(arg); | |
1021 | break; | |
1022 | ||
1023 | case I2OEVTREG: | |
1024 | ret = i2o_cfg_evt_reg(arg, fp); | |
1025 | break; | |
1026 | ||
1027 | case I2OEVTGET: | |
1028 | ret = i2o_cfg_evt_get(arg, fp); | |
1029 | break; | |
1030 | ||
b2aaee33 | 1031 | #ifdef CONFIG_I2O_EXT_ADAPTEC |
1da177e4 LT |
1032 | case I2OPASSTHRU: |
1033 | ret = i2o_cfg_passthru(arg); | |
1034 | break; | |
b2aaee33 | 1035 | #endif |
1da177e4 LT |
1036 | |
1037 | default: | |
1038 | osm_debug("unknown ioctl called!\n"); | |
1039 | ret = -EINVAL; | |
1040 | } | |
c45d15d2 | 1041 | mutex_unlock(&i2o_cfg_mutex); |
1da177e4 LT |
1042 | return ret; |
1043 | } | |
1044 | ||
1045 | static int cfg_open(struct inode *inode, struct file *file) | |
1046 | { | |
1047 | struct i2o_cfg_info *tmp = | |
1048 | (struct i2o_cfg_info *)kmalloc(sizeof(struct i2o_cfg_info), | |
1049 | GFP_KERNEL); | |
1050 | unsigned long flags; | |
1051 | ||
1052 | if (!tmp) | |
1053 | return -ENOMEM; | |
1054 | ||
c45d15d2 | 1055 | mutex_lock(&i2o_cfg_mutex); |
1da177e4 LT |
1056 | file->private_data = (void *)(i2o_cfg_info_id++); |
1057 | tmp->fp = file; | |
1058 | tmp->fasync = NULL; | |
1059 | tmp->q_id = (ulong) file->private_data; | |
1060 | tmp->q_len = 0; | |
1061 | tmp->q_in = 0; | |
1062 | tmp->q_out = 0; | |
1063 | tmp->q_lost = 0; | |
1064 | tmp->next = open_files; | |
1065 | ||
1066 | spin_lock_irqsave(&i2o_config_lock, flags); | |
1067 | open_files = tmp; | |
1068 | spin_unlock_irqrestore(&i2o_config_lock, flags); | |
c45d15d2 | 1069 | mutex_unlock(&i2o_cfg_mutex); |
1da177e4 LT |
1070 | |
1071 | return 0; | |
1072 | } | |
1073 | ||
1074 | static int cfg_fasync(int fd, struct file *fp, int on) | |
1075 | { | |
1076 | ulong id = (ulong) fp->private_data; | |
1077 | struct i2o_cfg_info *p; | |
743115ee | 1078 | int ret = -EBADF; |
1da177e4 | 1079 | |
c45d15d2 | 1080 | mutex_lock(&i2o_cfg_mutex); |
1da177e4 LT |
1081 | for (p = open_files; p; p = p->next) |
1082 | if (p->q_id == id) | |
1083 | break; | |
1084 | ||
743115ee JC |
1085 | if (p) |
1086 | ret = fasync_helper(fd, fp, on, &p->fasync); | |
c45d15d2 | 1087 | mutex_unlock(&i2o_cfg_mutex); |
743115ee | 1088 | return ret; |
1da177e4 LT |
1089 | } |
1090 | ||
1091 | static int cfg_release(struct inode *inode, struct file *file) | |
1092 | { | |
1093 | ulong id = (ulong) file->private_data; | |
233e70f4 | 1094 | struct i2o_cfg_info *p, **q; |
1da177e4 LT |
1095 | unsigned long flags; |
1096 | ||
c45d15d2 | 1097 | mutex_lock(&i2o_cfg_mutex); |
1da177e4 | 1098 | spin_lock_irqsave(&i2o_config_lock, flags); |
233e70f4 AV |
1099 | for (q = &open_files; (p = *q) != NULL; q = &p->next) { |
1100 | if (p->q_id == id) { | |
1101 | *q = p->next; | |
1102 | kfree(p); | |
1da177e4 LT |
1103 | break; |
1104 | } | |
1da177e4 LT |
1105 | } |
1106 | spin_unlock_irqrestore(&i2o_config_lock, flags); | |
c45d15d2 | 1107 | mutex_unlock(&i2o_cfg_mutex); |
1da177e4 LT |
1108 | |
1109 | return 0; | |
1110 | } | |
1111 | ||
d54b1fdb | 1112 | static const struct file_operations config_fops = { |
1da177e4 LT |
1113 | .owner = THIS_MODULE, |
1114 | .llseek = no_llseek, | |
5d9d6e44 | 1115 | .unlocked_ioctl = i2o_cfg_ioctl, |
f4c2c15b | 1116 | #ifdef CONFIG_COMPAT |
1117 | .compat_ioctl = i2o_cfg_compat_ioctl, | |
1118 | #endif | |
1da177e4 LT |
1119 | .open = cfg_open, |
1120 | .release = cfg_release, | |
1121 | .fasync = cfg_fasync, | |
1122 | }; | |
1123 | ||
1124 | static struct miscdevice i2o_miscdev = { | |
1125 | I2O_MINOR, | |
1126 | "i2octl", | |
1127 | &config_fops | |
1128 | }; | |
1129 | ||
f10378ff | 1130 | static int __init i2o_config_old_init(void) |
1da177e4 | 1131 | { |
1da177e4 LT |
1132 | spin_lock_init(&i2o_config_lock); |
1133 | ||
1134 | if (misc_register(&i2o_miscdev) < 0) { | |
1135 | osm_err("can't register device.\n"); | |
1136 | return -EBUSY; | |
1137 | } | |
f33213ec | 1138 | |
1da177e4 LT |
1139 | return 0; |
1140 | } | |
1141 | ||
f10378ff | 1142 | static void i2o_config_old_exit(void) |
1da177e4 | 1143 | { |
1da177e4 | 1144 | misc_deregister(&i2o_miscdev); |
1da177e4 LT |
1145 | } |
1146 | ||
1147 | MODULE_AUTHOR("Red Hat Software"); |