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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 | ||
261eba73 | 191 | /* |
8fdbb340 | 192 | * Stop users being able to try and allocate arbitrary amounts |
261eba73 AC |
193 | * of DMA space. 64K is way more than sufficient for this. |
194 | */ | |
195 | if (kcmd.oplen > 65536) | |
196 | return -EMSGSIZE; | |
197 | ||
b81d67a5 JL |
198 | ops = memdup_user(kcmd.opbuf, kcmd.oplen); |
199 | if (IS_ERR(ops)) | |
200 | return PTR_ERR(ops); | |
1da177e4 LT |
201 | |
202 | /* | |
203 | * It's possible to have a _very_ large table | |
204 | * and that the user asks for all of it at once... | |
205 | */ | |
5cbded58 | 206 | res = kmalloc(65536, GFP_KERNEL); |
1da177e4 LT |
207 | if (!res) { |
208 | kfree(ops); | |
209 | return -ENOMEM; | |
210 | } | |
211 | ||
212 | len = i2o_parm_issue(dev, i2o_cmd, ops, kcmd.oplen, res, 65536); | |
213 | kfree(ops); | |
214 | ||
215 | if (len < 0) { | |
216 | kfree(res); | |
217 | return -EAGAIN; | |
218 | } | |
219 | ||
89596f20 KV |
220 | if (put_user(len, kcmd.reslen)) |
221 | ret = -EFAULT; | |
222 | else if (len > reslen) | |
1da177e4 LT |
223 | ret = -ENOBUFS; |
224 | else if (copy_to_user(kcmd.resbuf, res, len)) | |
225 | ret = -EFAULT; | |
226 | ||
227 | kfree(res); | |
228 | ||
229 | return ret; | |
230 | }; | |
231 | ||
232 | static int i2o_cfg_swdl(unsigned long arg) | |
233 | { | |
234 | struct i2o_sw_xfer kxfer; | |
235 | struct i2o_sw_xfer __user *pxfer = (struct i2o_sw_xfer __user *)arg; | |
236 | unsigned char maxfrag = 0, curfrag = 1; | |
237 | struct i2o_dma buffer; | |
a1a5ea70 | 238 | struct i2o_message *msg; |
1da177e4 LT |
239 | unsigned int status = 0, swlen = 0, fragsize = 8192; |
240 | struct i2o_controller *c; | |
241 | ||
242 | if (copy_from_user(&kxfer, pxfer, sizeof(struct i2o_sw_xfer))) | |
243 | return -EFAULT; | |
244 | ||
245 | if (get_user(swlen, kxfer.swlen) < 0) | |
246 | return -EFAULT; | |
247 | ||
248 | if (get_user(maxfrag, kxfer.maxfrag) < 0) | |
249 | return -EFAULT; | |
250 | ||
251 | if (get_user(curfrag, kxfer.curfrag) < 0) | |
252 | return -EFAULT; | |
253 | ||
254 | if (curfrag == maxfrag) | |
255 | fragsize = swlen - (maxfrag - 1) * 8192; | |
256 | ||
257 | if (!kxfer.buf || !access_ok(VERIFY_READ, kxfer.buf, fragsize)) | |
258 | return -EFAULT; | |
259 | ||
260 | c = i2o_find_iop(kxfer.iop); | |
261 | if (!c) | |
262 | return -ENXIO; | |
263 | ||
a1a5ea70 ML |
264 | msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET); |
265 | if (IS_ERR(msg)) | |
266 | return PTR_ERR(msg); | |
1da177e4 | 267 | |
9d793b0b | 268 | if (i2o_dma_alloc(&c->pdev->dev, &buffer, fragsize)) { |
a1a5ea70 | 269 | i2o_msg_nop(c, msg); |
1da177e4 LT |
270 | return -ENOMEM; |
271 | } | |
272 | ||
9d69b7d3 RD |
273 | if (__copy_from_user(buffer.virt, kxfer.buf, fragsize)) { |
274 | i2o_msg_nop(c, msg); | |
275 | i2o_dma_free(&c->pdev->dev, &buffer); | |
276 | return -EFAULT; | |
277 | } | |
1da177e4 | 278 | |
a1a5ea70 ML |
279 | msg->u.head[0] = cpu_to_le32(NINE_WORD_MSG_SIZE | SGL_OFFSET_7); |
280 | msg->u.head[1] = | |
281 | cpu_to_le32(I2O_CMD_SW_DOWNLOAD << 24 | HOST_TID << 12 | | |
282 | ADAPTER_TID); | |
283 | msg->u.head[2] = cpu_to_le32(i2o_config_driver.context); | |
284 | msg->u.head[3] = cpu_to_le32(0); | |
285 | msg->body[0] = | |
286 | cpu_to_le32((((u32) kxfer.flags) << 24) | (((u32) kxfer. | |
287 | sw_type) << 16) | | |
288 | (((u32) maxfrag) << 8) | (((u32) curfrag))); | |
289 | msg->body[1] = cpu_to_le32(swlen); | |
290 | msg->body[2] = cpu_to_le32(kxfer.sw_id); | |
291 | msg->body[3] = cpu_to_le32(0xD0000000 | fragsize); | |
292 | msg->body[4] = cpu_to_le32(buffer.phys); | |
1da177e4 LT |
293 | |
294 | osm_debug("swdl frag %d/%d (size %d)\n", curfrag, maxfrag, fragsize); | |
a1a5ea70 | 295 | status = i2o_msg_post_wait_mem(c, msg, 60, &buffer); |
1da177e4 LT |
296 | |
297 | if (status != -ETIMEDOUT) | |
298 | i2o_dma_free(&c->pdev->dev, &buffer); | |
299 | ||
300 | if (status != I2O_POST_WAIT_OK) { | |
301 | // it fails if you try and send frags out of order | |
302 | // and for some yet unknown reasons too | |
303 | osm_info("swdl failed, DetailedStatus = %d\n", status); | |
304 | return status; | |
305 | } | |
306 | ||
307 | return 0; | |
308 | }; | |
309 | ||
310 | static int i2o_cfg_swul(unsigned long arg) | |
311 | { | |
312 | struct i2o_sw_xfer kxfer; | |
313 | struct i2o_sw_xfer __user *pxfer = (struct i2o_sw_xfer __user *)arg; | |
314 | unsigned char maxfrag = 0, curfrag = 1; | |
315 | struct i2o_dma buffer; | |
a1a5ea70 | 316 | struct i2o_message *msg; |
1da177e4 LT |
317 | unsigned int status = 0, swlen = 0, fragsize = 8192; |
318 | struct i2o_controller *c; | |
319 | int ret = 0; | |
320 | ||
321 | if (copy_from_user(&kxfer, pxfer, sizeof(struct i2o_sw_xfer))) | |
b1ffdc8f | 322 | return -EFAULT; |
1da177e4 LT |
323 | |
324 | if (get_user(swlen, kxfer.swlen) < 0) | |
b1ffdc8f | 325 | return -EFAULT; |
1da177e4 LT |
326 | |
327 | if (get_user(maxfrag, kxfer.maxfrag) < 0) | |
b1ffdc8f | 328 | return -EFAULT; |
1da177e4 LT |
329 | |
330 | if (get_user(curfrag, kxfer.curfrag) < 0) | |
b1ffdc8f | 331 | return -EFAULT; |
1da177e4 LT |
332 | |
333 | if (curfrag == maxfrag) | |
334 | fragsize = swlen - (maxfrag - 1) * 8192; | |
335 | ||
336 | if (!kxfer.buf) | |
b1ffdc8f | 337 | return -EFAULT; |
1da177e4 LT |
338 | |
339 | c = i2o_find_iop(kxfer.iop); | |
340 | if (!c) | |
341 | return -ENXIO; | |
342 | ||
a1a5ea70 ML |
343 | msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET); |
344 | if (IS_ERR(msg)) | |
345 | return PTR_ERR(msg); | |
1da177e4 | 346 | |
9d793b0b | 347 | if (i2o_dma_alloc(&c->pdev->dev, &buffer, fragsize)) { |
a1a5ea70 | 348 | i2o_msg_nop(c, msg); |
1da177e4 LT |
349 | return -ENOMEM; |
350 | } | |
351 | ||
a1a5ea70 ML |
352 | msg->u.head[0] = cpu_to_le32(NINE_WORD_MSG_SIZE | SGL_OFFSET_7); |
353 | msg->u.head[1] = | |
354 | cpu_to_le32(I2O_CMD_SW_UPLOAD << 24 | HOST_TID << 12 | ADAPTER_TID); | |
355 | msg->u.head[2] = cpu_to_le32(i2o_config_driver.context); | |
356 | msg->u.head[3] = cpu_to_le32(0); | |
357 | msg->body[0] = | |
358 | cpu_to_le32((u32) kxfer.flags << 24 | (u32) kxfer. | |
359 | sw_type << 16 | (u32) maxfrag << 8 | (u32) curfrag); | |
360 | msg->body[1] = cpu_to_le32(swlen); | |
361 | msg->body[2] = cpu_to_le32(kxfer.sw_id); | |
362 | msg->body[3] = cpu_to_le32(0xD0000000 | fragsize); | |
363 | msg->body[4] = cpu_to_le32(buffer.phys); | |
1da177e4 LT |
364 | |
365 | osm_debug("swul frag %d/%d (size %d)\n", curfrag, maxfrag, fragsize); | |
a1a5ea70 | 366 | status = i2o_msg_post_wait_mem(c, msg, 60, &buffer); |
1da177e4 LT |
367 | |
368 | if (status != I2O_POST_WAIT_OK) { | |
369 | if (status != -ETIMEDOUT) | |
370 | i2o_dma_free(&c->pdev->dev, &buffer); | |
371 | ||
372 | osm_info("swul failed, DetailedStatus = %d\n", status); | |
373 | return status; | |
374 | } | |
375 | ||
376 | if (copy_to_user(kxfer.buf, buffer.virt, fragsize)) | |
377 | ret = -EFAULT; | |
378 | ||
379 | i2o_dma_free(&c->pdev->dev, &buffer); | |
380 | ||
1da177e4 | 381 | return ret; |
b1ffdc8f | 382 | } |
1da177e4 LT |
383 | |
384 | static int i2o_cfg_swdel(unsigned long arg) | |
385 | { | |
386 | struct i2o_controller *c; | |
387 | struct i2o_sw_xfer kxfer; | |
388 | struct i2o_sw_xfer __user *pxfer = (struct i2o_sw_xfer __user *)arg; | |
a1a5ea70 | 389 | struct i2o_message *msg; |
1da177e4 LT |
390 | unsigned int swlen; |
391 | int token; | |
392 | ||
393 | if (copy_from_user(&kxfer, pxfer, sizeof(struct i2o_sw_xfer))) | |
394 | return -EFAULT; | |
395 | ||
396 | if (get_user(swlen, kxfer.swlen) < 0) | |
397 | return -EFAULT; | |
398 | ||
399 | c = i2o_find_iop(kxfer.iop); | |
400 | if (!c) | |
401 | return -ENXIO; | |
402 | ||
a1a5ea70 ML |
403 | msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET); |
404 | if (IS_ERR(msg)) | |
405 | return PTR_ERR(msg); | |
1da177e4 | 406 | |
a1a5ea70 ML |
407 | msg->u.head[0] = cpu_to_le32(SEVEN_WORD_MSG_SIZE | SGL_OFFSET_0); |
408 | msg->u.head[1] = | |
409 | cpu_to_le32(I2O_CMD_SW_REMOVE << 24 | HOST_TID << 12 | ADAPTER_TID); | |
410 | msg->u.head[2] = cpu_to_le32(i2o_config_driver.context); | |
411 | msg->u.head[3] = cpu_to_le32(0); | |
412 | msg->body[0] = | |
413 | cpu_to_le32((u32) kxfer.flags << 24 | (u32) kxfer.sw_type << 16); | |
414 | msg->body[1] = cpu_to_le32(swlen); | |
415 | msg->body[2] = cpu_to_le32(kxfer.sw_id); | |
1da177e4 | 416 | |
a1a5ea70 | 417 | token = i2o_msg_post_wait(c, msg, 10); |
1da177e4 LT |
418 | |
419 | if (token != I2O_POST_WAIT_OK) { | |
420 | osm_info("swdel failed, DetailedStatus = %d\n", token); | |
421 | return -ETIMEDOUT; | |
422 | } | |
423 | ||
424 | return 0; | |
425 | }; | |
426 | ||
427 | static int i2o_cfg_validate(unsigned long arg) | |
428 | { | |
429 | int token; | |
430 | int iop = (int)arg; | |
a1a5ea70 | 431 | struct i2o_message *msg; |
1da177e4 LT |
432 | struct i2o_controller *c; |
433 | ||
434 | c = i2o_find_iop(iop); | |
435 | if (!c) | |
436 | return -ENXIO; | |
437 | ||
a1a5ea70 ML |
438 | msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET); |
439 | if (IS_ERR(msg)) | |
440 | return PTR_ERR(msg); | |
1da177e4 | 441 | |
a1a5ea70 ML |
442 | msg->u.head[0] = cpu_to_le32(FOUR_WORD_MSG_SIZE | SGL_OFFSET_0); |
443 | msg->u.head[1] = | |
444 | cpu_to_le32(I2O_CMD_CONFIG_VALIDATE << 24 | HOST_TID << 12 | iop); | |
445 | msg->u.head[2] = cpu_to_le32(i2o_config_driver.context); | |
446 | msg->u.head[3] = cpu_to_le32(0); | |
1da177e4 | 447 | |
a1a5ea70 | 448 | token = i2o_msg_post_wait(c, msg, 10); |
1da177e4 LT |
449 | |
450 | if (token != I2O_POST_WAIT_OK) { | |
451 | osm_info("Can't validate configuration, ErrorStatus = %d\n", | |
452 | token); | |
453 | return -ETIMEDOUT; | |
454 | } | |
455 | ||
456 | return 0; | |
457 | }; | |
458 | ||
459 | static int i2o_cfg_evt_reg(unsigned long arg, struct file *fp) | |
460 | { | |
a1a5ea70 | 461 | struct i2o_message *msg; |
1da177e4 LT |
462 | struct i2o_evt_id __user *pdesc = (struct i2o_evt_id __user *)arg; |
463 | struct i2o_evt_id kdesc; | |
464 | struct i2o_controller *c; | |
465 | struct i2o_device *d; | |
466 | ||
467 | if (copy_from_user(&kdesc, pdesc, sizeof(struct i2o_evt_id))) | |
468 | return -EFAULT; | |
469 | ||
470 | /* IOP exists? */ | |
471 | c = i2o_find_iop(kdesc.iop); | |
472 | if (!c) | |
473 | return -ENXIO; | |
474 | ||
475 | /* Device exists? */ | |
476 | d = i2o_iop_find_device(c, kdesc.tid); | |
477 | if (!d) | |
478 | return -ENODEV; | |
479 | ||
a1a5ea70 ML |
480 | msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET); |
481 | if (IS_ERR(msg)) | |
482 | return PTR_ERR(msg); | |
1da177e4 | 483 | |
a1a5ea70 ML |
484 | msg->u.head[0] = cpu_to_le32(FOUR_WORD_MSG_SIZE | SGL_OFFSET_0); |
485 | msg->u.head[1] = | |
486 | cpu_to_le32(I2O_CMD_UTIL_EVT_REGISTER << 24 | HOST_TID << 12 | | |
487 | kdesc.tid); | |
488 | msg->u.head[2] = cpu_to_le32(i2o_config_driver.context); | |
489 | msg->u.head[3] = cpu_to_le32(i2o_cntxt_list_add(c, fp->private_data)); | |
490 | msg->body[0] = cpu_to_le32(kdesc.evt_mask); | |
1da177e4 | 491 | |
a1a5ea70 | 492 | i2o_msg_post(c, msg); |
1da177e4 LT |
493 | |
494 | return 0; | |
495 | } | |
496 | ||
497 | static int i2o_cfg_evt_get(unsigned long arg, struct file *fp) | |
498 | { | |
499 | struct i2o_cfg_info *p = NULL; | |
500 | struct i2o_evt_get __user *uget = (struct i2o_evt_get __user *)arg; | |
501 | struct i2o_evt_get kget; | |
502 | unsigned long flags; | |
503 | ||
504 | for (p = open_files; p; p = p->next) | |
505 | if (p->q_id == (ulong) fp->private_data) | |
506 | break; | |
507 | ||
508 | if (!p->q_len) | |
509 | return -ENOENT; | |
510 | ||
511 | memcpy(&kget.info, &p->event_q[p->q_out], sizeof(struct i2o_evt_info)); | |
512 | MODINC(p->q_out, I2O_EVT_Q_LEN); | |
513 | spin_lock_irqsave(&i2o_config_lock, flags); | |
514 | p->q_len--; | |
515 | kget.pending = p->q_len; | |
516 | kget.lost = p->q_lost; | |
517 | spin_unlock_irqrestore(&i2o_config_lock, flags); | |
518 | ||
519 | if (copy_to_user(uget, &kget, sizeof(struct i2o_evt_get))) | |
520 | return -EFAULT; | |
521 | return 0; | |
522 | } | |
523 | ||
524 | #ifdef CONFIG_COMPAT | |
f33213ec ML |
525 | static int i2o_cfg_passthru32(struct file *file, unsigned cmnd, |
526 | unsigned long arg) | |
1da177e4 LT |
527 | { |
528 | struct i2o_cmd_passthru32 __user *cmd; | |
529 | struct i2o_controller *c; | |
530 | u32 __user *user_msg; | |
531 | u32 *reply = NULL; | |
532 | u32 __user *user_reply = NULL; | |
533 | u32 size = 0; | |
534 | u32 reply_size = 0; | |
535 | u32 rcode = 0; | |
536 | struct i2o_dma sg_list[SG_TABLESIZE]; | |
537 | u32 sg_offset = 0; | |
538 | u32 sg_count = 0; | |
539 | u32 i = 0; | |
61fbfa81 | 540 | u32 sg_index = 0; |
1da177e4 LT |
541 | i2o_status_block *sb; |
542 | struct i2o_message *msg; | |
1da177e4 LT |
543 | unsigned int iop; |
544 | ||
545 | cmd = (struct i2o_cmd_passthru32 __user *)arg; | |
546 | ||
547 | if (get_user(iop, &cmd->iop) || get_user(i, &cmd->msg)) | |
548 | return -EFAULT; | |
549 | ||
550 | user_msg = compat_ptr(i); | |
551 | ||
552 | c = i2o_find_iop(iop); | |
553 | if (!c) { | |
554 | osm_debug("controller %d not found\n", iop); | |
555 | return -ENXIO; | |
556 | } | |
557 | ||
1da177e4 LT |
558 | sb = c->status_block.virt; |
559 | ||
560 | if (get_user(size, &user_msg[0])) { | |
561 | osm_warn("unable to get size!\n"); | |
562 | return -EFAULT; | |
563 | } | |
564 | size = size >> 16; | |
565 | ||
566 | if (size > sb->inbound_frame_size) { | |
567 | osm_warn("size of message > inbound_frame_size"); | |
568 | return -EFAULT; | |
569 | } | |
570 | ||
571 | user_reply = &user_msg[size]; | |
572 | ||
573 | size <<= 2; // Convert to bytes | |
574 | ||
1725d71d VA |
575 | msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET); |
576 | if (IS_ERR(msg)) | |
577 | return PTR_ERR(msg); | |
578 | ||
579 | rcode = -EFAULT; | |
1da177e4 LT |
580 | /* Copy in the user's I2O command */ |
581 | if (copy_from_user(msg, user_msg, size)) { | |
582 | osm_warn("unable to copy user message\n"); | |
1725d71d | 583 | goto out; |
1da177e4 LT |
584 | } |
585 | i2o_dump_message(msg); | |
586 | ||
587 | if (get_user(reply_size, &user_reply[0]) < 0) | |
1725d71d | 588 | goto out; |
1da177e4 LT |
589 | |
590 | reply_size >>= 16; | |
591 | reply_size <<= 2; | |
592 | ||
1725d71d | 593 | rcode = -ENOMEM; |
f6ed39a6 | 594 | reply = kzalloc(reply_size, GFP_KERNEL); |
1da177e4 LT |
595 | if (!reply) { |
596 | printk(KERN_WARNING "%s: Could not allocate reply buffer\n", | |
597 | c->name); | |
1725d71d | 598 | goto out; |
1da177e4 | 599 | } |
1da177e4 LT |
600 | |
601 | sg_offset = (msg->u.head[0] >> 4) & 0x0f; | |
602 | ||
1da177e4 LT |
603 | memset(sg_list, 0, sizeof(sg_list[0]) * SG_TABLESIZE); |
604 | if (sg_offset) { | |
605 | struct sg_simple_element *sg; | |
606 | ||
607 | if (sg_offset * 4 >= size) { | |
608 | rcode = -EFAULT; | |
609 | goto cleanup; | |
610 | } | |
611 | // TODO 64bit fix | |
612 | sg = (struct sg_simple_element *)((&msg->u.head[0]) + | |
613 | sg_offset); | |
614 | sg_count = | |
615 | (size - sg_offset * 4) / sizeof(struct sg_simple_element); | |
616 | if (sg_count > SG_TABLESIZE) { | |
617 | printk(KERN_DEBUG "%s:IOCTL SG List too large (%u)\n", | |
618 | c->name, sg_count); | |
61fbfa81 ML |
619 | rcode = -EINVAL; |
620 | goto cleanup; | |
1da177e4 LT |
621 | } |
622 | ||
623 | for (i = 0; i < sg_count; i++) { | |
624 | int sg_size; | |
625 | struct i2o_dma *p; | |
626 | ||
627 | if (!(sg[i].flag_count & 0x10000000 | |
628 | /*I2O_SGL_FLAGS_SIMPLE_ADDRESS_ELEMENT */ )) { | |
629 | printk(KERN_DEBUG | |
630 | "%s:Bad SG element %d - not simple (%x)\n", | |
631 | c->name, i, sg[i].flag_count); | |
632 | rcode = -EINVAL; | |
633 | goto cleanup; | |
634 | } | |
635 | sg_size = sg[i].flag_count & 0xffffff; | |
dcceafe2 | 636 | p = &(sg_list[sg_index]); |
1da177e4 | 637 | /* Allocate memory for the transfer */ |
9d793b0b | 638 | if (i2o_dma_alloc(&c->pdev->dev, p, sg_size)) { |
1da177e4 LT |
639 | printk(KERN_DEBUG |
640 | "%s: Could not allocate SG buffer - size = %d buffer number %d of %d\n", | |
641 | c->name, sg_size, i, sg_count); | |
642 | rcode = -ENOMEM; | |
61fbfa81 | 643 | goto sg_list_cleanup; |
1da177e4 | 644 | } |
dcceafe2 | 645 | sg_index++; |
1da177e4 LT |
646 | /* Copy in the user's SG buffer if necessary */ |
647 | if (sg[i]. | |
648 | flag_count & 0x04000000 /*I2O_SGL_FLAGS_DIR */ ) { | |
649 | // TODO 64bit fix | |
650 | if (copy_from_user | |
f33213ec ML |
651 | (p->virt, |
652 | (void __user *)(unsigned long)sg[i]. | |
653 | addr_bus, sg_size)) { | |
1da177e4 LT |
654 | printk(KERN_DEBUG |
655 | "%s: Could not copy SG buf %d FROM user\n", | |
656 | c->name, i); | |
657 | rcode = -EFAULT; | |
61fbfa81 | 658 | goto sg_list_cleanup; |
1da177e4 LT |
659 | } |
660 | } | |
661 | //TODO 64bit fix | |
662 | sg[i].addr_bus = (u32) p->phys; | |
663 | } | |
664 | } | |
665 | ||
a1a5ea70 | 666 | rcode = i2o_msg_post_wait(c, msg, 60); |
1725d71d | 667 | msg = NULL; |
dcceafe2 ML |
668 | if (rcode) { |
669 | reply[4] = ((u32) rcode) << 24; | |
61fbfa81 | 670 | goto sg_list_cleanup; |
dcceafe2 | 671 | } |
1da177e4 LT |
672 | |
673 | if (sg_offset) { | |
1725d71d | 674 | u32 rmsg[I2O_OUTBOUND_MSG_FRAME_SIZE]; |
1da177e4 LT |
675 | /* Copy back the Scatter Gather buffers back to user space */ |
676 | u32 j; | |
677 | // TODO 64bit fix | |
678 | struct sg_simple_element *sg; | |
679 | int sg_size; | |
680 | ||
681 | // re-acquire the original message to handle correctly the sg copy operation | |
1725d71d | 682 | memset(&rmsg, 0, I2O_OUTBOUND_MSG_FRAME_SIZE * 4); |
1da177e4 LT |
683 | // get user msg size in u32s |
684 | if (get_user(size, &user_msg[0])) { | |
685 | rcode = -EFAULT; | |
61fbfa81 | 686 | goto sg_list_cleanup; |
1da177e4 LT |
687 | } |
688 | size = size >> 16; | |
689 | size *= 4; | |
690 | /* Copy in the user's I2O command */ | |
1725d71d | 691 | if (copy_from_user(rmsg, user_msg, size)) { |
1da177e4 | 692 | rcode = -EFAULT; |
61fbfa81 | 693 | goto sg_list_cleanup; |
1da177e4 LT |
694 | } |
695 | sg_count = | |
696 | (size - sg_offset * 4) / sizeof(struct sg_simple_element); | |
697 | ||
698 | // TODO 64bit fix | |
1725d71d | 699 | sg = (struct sg_simple_element *)(rmsg + sg_offset); |
1da177e4 LT |
700 | for (j = 0; j < sg_count; j++) { |
701 | /* Copy out the SG list to user's buffer if necessary */ | |
702 | if (! | |
703 | (sg[j]. | |
704 | flag_count & 0x4000000 /*I2O_SGL_FLAGS_DIR */ )) { | |
705 | sg_size = sg[j].flag_count & 0xffffff; | |
706 | // TODO 64bit fix | |
707 | if (copy_to_user | |
708 | ((void __user *)(u64) sg[j].addr_bus, | |
709 | sg_list[j].virt, sg_size)) { | |
710 | printk(KERN_WARNING | |
711 | "%s: Could not copy %p TO user %x\n", | |
712 | c->name, sg_list[j].virt, | |
713 | sg[j].addr_bus); | |
714 | rcode = -EFAULT; | |
61fbfa81 | 715 | goto sg_list_cleanup; |
1da177e4 LT |
716 | } |
717 | } | |
718 | } | |
719 | } | |
720 | ||
1725d71d | 721 | sg_list_cleanup: |
1da177e4 LT |
722 | /* Copy back the reply to user space */ |
723 | if (reply_size) { | |
724 | // we wrote our own values for context - now restore the user supplied ones | |
725 | if (copy_from_user(reply + 2, user_msg + 2, sizeof(u32) * 2)) { | |
726 | printk(KERN_WARNING | |
727 | "%s: Could not copy message context FROM user\n", | |
728 | c->name); | |
729 | rcode = -EFAULT; | |
730 | } | |
731 | if (copy_to_user(user_reply, reply, reply_size)) { | |
732 | printk(KERN_WARNING | |
733 | "%s: Could not copy reply TO user\n", c->name); | |
734 | rcode = -EFAULT; | |
735 | } | |
736 | } | |
61fbfa81 ML |
737 | for (i = 0; i < sg_index; i++) |
738 | i2o_dma_free(&c->pdev->dev, &sg_list[i]); | |
739 | ||
1725d71d | 740 | cleanup: |
1da177e4 | 741 | kfree(reply); |
1725d71d VA |
742 | out: |
743 | if (msg) | |
744 | i2o_msg_nop(c, msg); | |
1da177e4 LT |
745 | return rcode; |
746 | } | |
747 | ||
f33213ec ML |
748 | static long i2o_cfg_compat_ioctl(struct file *file, unsigned cmd, |
749 | unsigned long arg) | |
f4c2c15b JB |
750 | { |
751 | int ret; | |
c45d15d2 | 752 | mutex_lock(&i2o_cfg_mutex); |
f33213ec | 753 | switch (cmd) { |
f4c2c15b | 754 | case I2OGETIOPS: |
5d9d6e44 | 755 | ret = i2o_cfg_ioctl(file, cmd, arg); |
f4c2c15b JB |
756 | break; |
757 | case I2OPASSTHRU32: | |
758 | ret = i2o_cfg_passthru32(file, cmd, arg); | |
759 | break; | |
760 | default: | |
761 | ret = -ENOIOCTLCMD; | |
762 | break; | |
763 | } | |
c45d15d2 | 764 | mutex_unlock(&i2o_cfg_mutex); |
f4c2c15b JB |
765 | return ret; |
766 | } | |
767 | ||
768 | #endif | |
1da177e4 | 769 | |
f13a6037 | 770 | #ifdef CONFIG_I2O_EXT_ADAPTEC |
1da177e4 LT |
771 | static int i2o_cfg_passthru(unsigned long arg) |
772 | { | |
773 | struct i2o_cmd_passthru __user *cmd = | |
774 | (struct i2o_cmd_passthru __user *)arg; | |
775 | struct i2o_controller *c; | |
776 | u32 __user *user_msg; | |
777 | u32 *reply = NULL; | |
778 | u32 __user *user_reply = NULL; | |
779 | u32 size = 0; | |
780 | u32 reply_size = 0; | |
781 | u32 rcode = 0; | |
9d793b0b | 782 | struct i2o_dma sg_list[SG_TABLESIZE]; |
1da177e4 LT |
783 | u32 sg_offset = 0; |
784 | u32 sg_count = 0; | |
785 | int sg_index = 0; | |
786 | u32 i = 0; | |
1da177e4 | 787 | i2o_status_block *sb; |
a1a5ea70 | 788 | struct i2o_message *msg; |
1da177e4 LT |
789 | unsigned int iop; |
790 | ||
791 | if (get_user(iop, &cmd->iop) || get_user(user_msg, &cmd->msg)) | |
792 | return -EFAULT; | |
793 | ||
794 | c = i2o_find_iop(iop); | |
795 | if (!c) { | |
796 | osm_warn("controller %d not found\n", iop); | |
797 | return -ENXIO; | |
798 | } | |
799 | ||
1da177e4 LT |
800 | sb = c->status_block.virt; |
801 | ||
802 | if (get_user(size, &user_msg[0])) | |
803 | return -EFAULT; | |
804 | size = size >> 16; | |
805 | ||
806 | if (size > sb->inbound_frame_size) { | |
807 | osm_warn("size of message > inbound_frame_size"); | |
808 | return -EFAULT; | |
809 | } | |
810 | ||
811 | user_reply = &user_msg[size]; | |
812 | ||
813 | size <<= 2; // Convert to bytes | |
814 | ||
1725d71d VA |
815 | msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET); |
816 | if (IS_ERR(msg)) | |
817 | return PTR_ERR(msg); | |
818 | ||
819 | rcode = -EFAULT; | |
1da177e4 LT |
820 | /* Copy in the user's I2O command */ |
821 | if (copy_from_user(msg, user_msg, size)) | |
1725d71d | 822 | goto out; |
1da177e4 LT |
823 | |
824 | if (get_user(reply_size, &user_reply[0]) < 0) | |
1725d71d | 825 | goto out; |
1da177e4 LT |
826 | |
827 | reply_size >>= 16; | |
828 | reply_size <<= 2; | |
829 | ||
f6ed39a6 | 830 | reply = kzalloc(reply_size, GFP_KERNEL); |
1da177e4 LT |
831 | if (!reply) { |
832 | printk(KERN_WARNING "%s: Could not allocate reply buffer\n", | |
833 | c->name); | |
1725d71d VA |
834 | rcode = -ENOMEM; |
835 | goto out; | |
1da177e4 | 836 | } |
1da177e4 LT |
837 | |
838 | sg_offset = (msg->u.head[0] >> 4) & 0x0f; | |
839 | ||
1da177e4 LT |
840 | memset(sg_list, 0, sizeof(sg_list[0]) * SG_TABLESIZE); |
841 | if (sg_offset) { | |
842 | struct sg_simple_element *sg; | |
9d793b0b | 843 | struct i2o_dma *p; |
1da177e4 LT |
844 | |
845 | if (sg_offset * 4 >= size) { | |
846 | rcode = -EFAULT; | |
847 | goto cleanup; | |
848 | } | |
849 | // TODO 64bit fix | |
850 | sg = (struct sg_simple_element *)((&msg->u.head[0]) + | |
851 | sg_offset); | |
852 | sg_count = | |
853 | (size - sg_offset * 4) / sizeof(struct sg_simple_element); | |
854 | if (sg_count > SG_TABLESIZE) { | |
855 | printk(KERN_DEBUG "%s:IOCTL SG List too large (%u)\n", | |
856 | c->name, sg_count); | |
61fbfa81 ML |
857 | rcode = -EINVAL; |
858 | goto cleanup; | |
1da177e4 LT |
859 | } |
860 | ||
861 | for (i = 0; i < sg_count; i++) { | |
862 | int sg_size; | |
863 | ||
864 | if (!(sg[i].flag_count & 0x10000000 | |
865 | /*I2O_SGL_FLAGS_SIMPLE_ADDRESS_ELEMENT */ )) { | |
866 | printk(KERN_DEBUG | |
867 | "%s:Bad SG element %d - not simple (%x)\n", | |
868 | c->name, i, sg[i].flag_count); | |
869 | rcode = -EINVAL; | |
61fbfa81 | 870 | goto sg_list_cleanup; |
1da177e4 LT |
871 | } |
872 | sg_size = sg[i].flag_count & 0xffffff; | |
9d793b0b AC |
873 | p = &(sg_list[sg_index]); |
874 | if (i2o_dma_alloc(&c->pdev->dev, p, sg_size)) { | |
1da177e4 | 875 | /* Allocate memory for the transfer */ |
1da177e4 LT |
876 | printk(KERN_DEBUG |
877 | "%s: Could not allocate SG buffer - size = %d buffer number %d of %d\n", | |
878 | c->name, sg_size, i, sg_count); | |
879 | rcode = -ENOMEM; | |
61fbfa81 | 880 | goto sg_list_cleanup; |
1da177e4 | 881 | } |
9d793b0b | 882 | sg_index++; |
1da177e4 LT |
883 | /* Copy in the user's SG buffer if necessary */ |
884 | if (sg[i]. | |
885 | flag_count & 0x04000000 /*I2O_SGL_FLAGS_DIR */ ) { | |
886 | // TODO 64bit fix | |
887 | if (copy_from_user | |
9d793b0b | 888 | (p->virt, (void __user *)sg[i].addr_bus, |
1da177e4 LT |
889 | sg_size)) { |
890 | printk(KERN_DEBUG | |
891 | "%s: Could not copy SG buf %d FROM user\n", | |
892 | c->name, i); | |
893 | rcode = -EFAULT; | |
61fbfa81 | 894 | goto sg_list_cleanup; |
1da177e4 LT |
895 | } |
896 | } | |
9d793b0b | 897 | sg[i].addr_bus = p->phys; |
1da177e4 LT |
898 | } |
899 | } | |
900 | ||
a1a5ea70 | 901 | rcode = i2o_msg_post_wait(c, msg, 60); |
1725d71d | 902 | msg = NULL; |
dcceafe2 ML |
903 | if (rcode) { |
904 | reply[4] = ((u32) rcode) << 24; | |
61fbfa81 | 905 | goto sg_list_cleanup; |
dcceafe2 | 906 | } |
1da177e4 LT |
907 | |
908 | if (sg_offset) { | |
9d793b0b | 909 | u32 rmsg[I2O_OUTBOUND_MSG_FRAME_SIZE]; |
1da177e4 LT |
910 | /* Copy back the Scatter Gather buffers back to user space */ |
911 | u32 j; | |
912 | // TODO 64bit fix | |
913 | struct sg_simple_element *sg; | |
914 | int sg_size; | |
915 | ||
916 | // re-acquire the original message to handle correctly the sg copy operation | |
1725d71d | 917 | memset(&rmsg, 0, I2O_OUTBOUND_MSG_FRAME_SIZE * 4); |
1da177e4 LT |
918 | // get user msg size in u32s |
919 | if (get_user(size, &user_msg[0])) { | |
920 | rcode = -EFAULT; | |
61fbfa81 | 921 | goto sg_list_cleanup; |
1da177e4 LT |
922 | } |
923 | size = size >> 16; | |
924 | size *= 4; | |
925 | /* Copy in the user's I2O command */ | |
1725d71d | 926 | if (copy_from_user(rmsg, user_msg, size)) { |
1da177e4 | 927 | rcode = -EFAULT; |
61fbfa81 | 928 | goto sg_list_cleanup; |
1da177e4 LT |
929 | } |
930 | sg_count = | |
931 | (size - sg_offset * 4) / sizeof(struct sg_simple_element); | |
932 | ||
933 | // TODO 64bit fix | |
1725d71d | 934 | sg = (struct sg_simple_element *)(rmsg + sg_offset); |
1da177e4 LT |
935 | for (j = 0; j < sg_count; j++) { |
936 | /* Copy out the SG list to user's buffer if necessary */ | |
937 | if (! | |
938 | (sg[j]. | |
939 | flag_count & 0x4000000 /*I2O_SGL_FLAGS_DIR */ )) { | |
940 | sg_size = sg[j].flag_count & 0xffffff; | |
941 | // TODO 64bit fix | |
942 | if (copy_to_user | |
9d793b0b | 943 | ((void __user *)sg[j].addr_bus, sg_list[j].virt, |
1da177e4 LT |
944 | sg_size)) { |
945 | printk(KERN_WARNING | |
946 | "%s: Could not copy %p TO user %x\n", | |
9d793b0b | 947 | c->name, sg_list[j].virt, |
1da177e4 LT |
948 | sg[j].addr_bus); |
949 | rcode = -EFAULT; | |
61fbfa81 | 950 | goto sg_list_cleanup; |
1da177e4 LT |
951 | } |
952 | } | |
953 | } | |
954 | } | |
955 | ||
1725d71d | 956 | sg_list_cleanup: |
1da177e4 LT |
957 | /* Copy back the reply to user space */ |
958 | if (reply_size) { | |
959 | // we wrote our own values for context - now restore the user supplied ones | |
960 | if (copy_from_user(reply + 2, user_msg + 2, sizeof(u32) * 2)) { | |
961 | printk(KERN_WARNING | |
962 | "%s: Could not copy message context FROM user\n", | |
963 | c->name); | |
964 | rcode = -EFAULT; | |
965 | } | |
966 | if (copy_to_user(user_reply, reply, reply_size)) { | |
967 | printk(KERN_WARNING | |
968 | "%s: Could not copy reply TO user\n", c->name); | |
969 | rcode = -EFAULT; | |
970 | } | |
971 | } | |
972 | ||
61fbfa81 | 973 | for (i = 0; i < sg_index; i++) |
9d793b0b | 974 | i2o_dma_free(&c->pdev->dev, &sg_list[i]); |
61fbfa81 | 975 | |
1725d71d | 976 | cleanup: |
1da177e4 | 977 | kfree(reply); |
1725d71d VA |
978 | out: |
979 | if (msg) | |
980 | i2o_msg_nop(c, msg); | |
1da177e4 LT |
981 | return rcode; |
982 | } | |
b2aaee33 | 983 | #endif |
1da177e4 LT |
984 | |
985 | /* | |
986 | * IOCTL Handler | |
987 | */ | |
5d9d6e44 | 988 | static long i2o_cfg_ioctl(struct file *fp, unsigned int cmd, unsigned long arg) |
1da177e4 LT |
989 | { |
990 | int ret; | |
991 | ||
c45d15d2 | 992 | mutex_lock(&i2o_cfg_mutex); |
1da177e4 LT |
993 | switch (cmd) { |
994 | case I2OGETIOPS: | |
995 | ret = i2o_cfg_getiops(arg); | |
996 | break; | |
997 | ||
998 | case I2OHRTGET: | |
999 | ret = i2o_cfg_gethrt(arg); | |
1000 | break; | |
1001 | ||
1002 | case I2OLCTGET: | |
1003 | ret = i2o_cfg_getlct(arg); | |
1004 | break; | |
1005 | ||
1006 | case I2OPARMSET: | |
1007 | ret = i2o_cfg_parms(arg, I2OPARMSET); | |
1008 | break; | |
1009 | ||
1010 | case I2OPARMGET: | |
1011 | ret = i2o_cfg_parms(arg, I2OPARMGET); | |
1012 | break; | |
1013 | ||
1014 | case I2OSWDL: | |
1015 | ret = i2o_cfg_swdl(arg); | |
1016 | break; | |
1017 | ||
1018 | case I2OSWUL: | |
1019 | ret = i2o_cfg_swul(arg); | |
1020 | break; | |
1021 | ||
1022 | case I2OSWDEL: | |
1023 | ret = i2o_cfg_swdel(arg); | |
1024 | break; | |
1025 | ||
1026 | case I2OVALIDATE: | |
1027 | ret = i2o_cfg_validate(arg); | |
1028 | break; | |
1029 | ||
1030 | case I2OEVTREG: | |
1031 | ret = i2o_cfg_evt_reg(arg, fp); | |
1032 | break; | |
1033 | ||
1034 | case I2OEVTGET: | |
1035 | ret = i2o_cfg_evt_get(arg, fp); | |
1036 | break; | |
1037 | ||
b2aaee33 | 1038 | #ifdef CONFIG_I2O_EXT_ADAPTEC |
1da177e4 LT |
1039 | case I2OPASSTHRU: |
1040 | ret = i2o_cfg_passthru(arg); | |
1041 | break; | |
b2aaee33 | 1042 | #endif |
1da177e4 LT |
1043 | |
1044 | default: | |
1045 | osm_debug("unknown ioctl called!\n"); | |
1046 | ret = -EINVAL; | |
1047 | } | |
c45d15d2 | 1048 | mutex_unlock(&i2o_cfg_mutex); |
1da177e4 LT |
1049 | return ret; |
1050 | } | |
1051 | ||
1052 | static int cfg_open(struct inode *inode, struct file *file) | |
1053 | { | |
1dcb202f | 1054 | struct i2o_cfg_info *tmp = kmalloc(sizeof(struct i2o_cfg_info), |
1da177e4 LT |
1055 | GFP_KERNEL); |
1056 | unsigned long flags; | |
1057 | ||
1058 | if (!tmp) | |
1059 | return -ENOMEM; | |
1060 | ||
c45d15d2 | 1061 | mutex_lock(&i2o_cfg_mutex); |
1da177e4 LT |
1062 | file->private_data = (void *)(i2o_cfg_info_id++); |
1063 | tmp->fp = file; | |
1064 | tmp->fasync = NULL; | |
1065 | tmp->q_id = (ulong) file->private_data; | |
1066 | tmp->q_len = 0; | |
1067 | tmp->q_in = 0; | |
1068 | tmp->q_out = 0; | |
1069 | tmp->q_lost = 0; | |
1070 | tmp->next = open_files; | |
1071 | ||
1072 | spin_lock_irqsave(&i2o_config_lock, flags); | |
1073 | open_files = tmp; | |
1074 | spin_unlock_irqrestore(&i2o_config_lock, flags); | |
c45d15d2 | 1075 | mutex_unlock(&i2o_cfg_mutex); |
1da177e4 LT |
1076 | |
1077 | return 0; | |
1078 | } | |
1079 | ||
1080 | static int cfg_fasync(int fd, struct file *fp, int on) | |
1081 | { | |
1082 | ulong id = (ulong) fp->private_data; | |
1083 | struct i2o_cfg_info *p; | |
743115ee | 1084 | int ret = -EBADF; |
1da177e4 | 1085 | |
c45d15d2 | 1086 | mutex_lock(&i2o_cfg_mutex); |
1da177e4 LT |
1087 | for (p = open_files; p; p = p->next) |
1088 | if (p->q_id == id) | |
1089 | break; | |
1090 | ||
743115ee JC |
1091 | if (p) |
1092 | ret = fasync_helper(fd, fp, on, &p->fasync); | |
c45d15d2 | 1093 | mutex_unlock(&i2o_cfg_mutex); |
743115ee | 1094 | return ret; |
1da177e4 LT |
1095 | } |
1096 | ||
1097 | static int cfg_release(struct inode *inode, struct file *file) | |
1098 | { | |
1099 | ulong id = (ulong) file->private_data; | |
233e70f4 | 1100 | struct i2o_cfg_info *p, **q; |
1da177e4 LT |
1101 | unsigned long flags; |
1102 | ||
c45d15d2 | 1103 | mutex_lock(&i2o_cfg_mutex); |
1da177e4 | 1104 | spin_lock_irqsave(&i2o_config_lock, flags); |
233e70f4 AV |
1105 | for (q = &open_files; (p = *q) != NULL; q = &p->next) { |
1106 | if (p->q_id == id) { | |
1107 | *q = p->next; | |
1108 | kfree(p); | |
1da177e4 LT |
1109 | break; |
1110 | } | |
1da177e4 LT |
1111 | } |
1112 | spin_unlock_irqrestore(&i2o_config_lock, flags); | |
c45d15d2 | 1113 | mutex_unlock(&i2o_cfg_mutex); |
1da177e4 LT |
1114 | |
1115 | return 0; | |
1116 | } | |
1117 | ||
d54b1fdb | 1118 | static const struct file_operations config_fops = { |
1da177e4 LT |
1119 | .owner = THIS_MODULE, |
1120 | .llseek = no_llseek, | |
5d9d6e44 | 1121 | .unlocked_ioctl = i2o_cfg_ioctl, |
f4c2c15b JB |
1122 | #ifdef CONFIG_COMPAT |
1123 | .compat_ioctl = i2o_cfg_compat_ioctl, | |
1124 | #endif | |
1da177e4 LT |
1125 | .open = cfg_open, |
1126 | .release = cfg_release, | |
1127 | .fasync = cfg_fasync, | |
1128 | }; | |
1129 | ||
1130 | static struct miscdevice i2o_miscdev = { | |
1131 | I2O_MINOR, | |
1132 | "i2octl", | |
1133 | &config_fops | |
1134 | }; | |
1135 | ||
f10378ff | 1136 | static int __init i2o_config_old_init(void) |
1da177e4 | 1137 | { |
1da177e4 LT |
1138 | spin_lock_init(&i2o_config_lock); |
1139 | ||
1140 | if (misc_register(&i2o_miscdev) < 0) { | |
1141 | osm_err("can't register device.\n"); | |
1142 | return -EBUSY; | |
1143 | } | |
f33213ec | 1144 | |
1da177e4 LT |
1145 | return 0; |
1146 | } | |
1147 | ||
f10378ff | 1148 | static void i2o_config_old_exit(void) |
1da177e4 | 1149 | { |
1da177e4 | 1150 | misc_deregister(&i2o_miscdev); |
1da177e4 LT |
1151 | } |
1152 | ||
1153 | MODULE_AUTHOR("Red Hat Software"); |