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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> |
1da177e4 | 34 | #include <linux/smp_lock.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 | |
5d9d6e44 | 44 | static long i2o_cfg_ioctl(struct file *, unsigned int, unsigned long); |
f4c2c15b | 45 | |
1da177e4 LT |
46 | static spinlock_t i2o_config_lock; |
47 | ||
48 | #define MODINC(x,y) ((x) = ((x) + 1) % (y)) | |
49 | ||
50 | struct sg_simple_element { | |
51 | u32 flag_count; | |
52 | u32 addr_bus; | |
53 | }; | |
54 | ||
55 | struct i2o_cfg_info { | |
56 | struct file *fp; | |
57 | struct fasync_struct *fasync; | |
58 | struct i2o_evt_info event_q[I2O_EVT_Q_LEN]; | |
59 | u16 q_in; // Queue head index | |
60 | u16 q_out; // Queue tail index | |
61 | u16 q_len; // Queue length | |
62 | u16 q_lost; // Number of lost events | |
63 | ulong q_id; // Event queue ID...used as tx_context | |
64 | struct i2o_cfg_info *next; | |
65 | }; | |
66 | static struct i2o_cfg_info *open_files = NULL; | |
67 | static ulong i2o_cfg_info_id = 0; | |
68 | ||
1da177e4 LT |
69 | static int i2o_cfg_getiops(unsigned long arg) |
70 | { | |
71 | struct i2o_controller *c; | |
72 | u8 __user *user_iop_table = (void __user *)arg; | |
73 | u8 tmp[MAX_I2O_CONTROLLERS]; | |
74 | int ret = 0; | |
75 | ||
76 | memset(tmp, 0, MAX_I2O_CONTROLLERS); | |
77 | ||
78 | list_for_each_entry(c, &i2o_controllers, list) | |
79 | tmp[c->unit] = 1; | |
80 | ||
81 | if (copy_to_user(user_iop_table, tmp, MAX_I2O_CONTROLLERS)) | |
82 | ret = -EFAULT; | |
83 | ||
84 | return ret; | |
85 | }; | |
86 | ||
87 | static int i2o_cfg_gethrt(unsigned long arg) | |
88 | { | |
89 | struct i2o_controller *c; | |
90 | struct i2o_cmd_hrtlct __user *cmd = (struct i2o_cmd_hrtlct __user *)arg; | |
91 | struct i2o_cmd_hrtlct kcmd; | |
92 | i2o_hrt *hrt; | |
93 | int len; | |
94 | u32 reslen; | |
95 | int ret = 0; | |
96 | ||
97 | if (copy_from_user(&kcmd, cmd, sizeof(struct i2o_cmd_hrtlct))) | |
98 | return -EFAULT; | |
99 | ||
100 | if (get_user(reslen, kcmd.reslen) < 0) | |
101 | return -EFAULT; | |
102 | ||
103 | if (kcmd.resbuf == NULL) | |
104 | return -EFAULT; | |
105 | ||
106 | c = i2o_find_iop(kcmd.iop); | |
107 | if (!c) | |
108 | return -ENXIO; | |
109 | ||
110 | hrt = (i2o_hrt *) c->hrt.virt; | |
111 | ||
112 | len = 8 + ((hrt->entry_len * hrt->num_entries) << 2); | |
113 | ||
114 | /* We did a get user...so assuming mem is ok...is this bad? */ | |
115 | put_user(len, kcmd.reslen); | |
116 | if (len > reslen) | |
117 | ret = -ENOBUFS; | |
118 | if (copy_to_user(kcmd.resbuf, (void *)hrt, len)) | |
119 | ret = -EFAULT; | |
120 | ||
121 | return ret; | |
122 | }; | |
123 | ||
124 | static int i2o_cfg_getlct(unsigned long arg) | |
125 | { | |
126 | struct i2o_controller *c; | |
127 | struct i2o_cmd_hrtlct __user *cmd = (struct i2o_cmd_hrtlct __user *)arg; | |
128 | struct i2o_cmd_hrtlct kcmd; | |
129 | i2o_lct *lct; | |
130 | int len; | |
131 | int ret = 0; | |
132 | u32 reslen; | |
133 | ||
134 | if (copy_from_user(&kcmd, cmd, sizeof(struct i2o_cmd_hrtlct))) | |
135 | return -EFAULT; | |
136 | ||
137 | if (get_user(reslen, kcmd.reslen) < 0) | |
138 | return -EFAULT; | |
139 | ||
140 | if (kcmd.resbuf == NULL) | |
141 | return -EFAULT; | |
142 | ||
143 | c = i2o_find_iop(kcmd.iop); | |
144 | if (!c) | |
145 | return -ENXIO; | |
146 | ||
147 | lct = (i2o_lct *) c->lct; | |
148 | ||
149 | len = (unsigned int)lct->table_size << 2; | |
150 | put_user(len, kcmd.reslen); | |
151 | if (len > reslen) | |
152 | ret = -ENOBUFS; | |
153 | else if (copy_to_user(kcmd.resbuf, lct, len)) | |
154 | ret = -EFAULT; | |
155 | ||
156 | return ret; | |
157 | }; | |
158 | ||
159 | static int i2o_cfg_parms(unsigned long arg, unsigned int type) | |
160 | { | |
161 | int ret = 0; | |
162 | struct i2o_controller *c; | |
163 | struct i2o_device *dev; | |
164 | struct i2o_cmd_psetget __user *cmd = | |
165 | (struct i2o_cmd_psetget __user *)arg; | |
166 | struct i2o_cmd_psetget kcmd; | |
167 | u32 reslen; | |
168 | u8 *ops; | |
169 | u8 *res; | |
170 | int len = 0; | |
171 | ||
172 | u32 i2o_cmd = (type == I2OPARMGET ? | |
173 | I2O_CMD_UTIL_PARAMS_GET : I2O_CMD_UTIL_PARAMS_SET); | |
174 | ||
175 | if (copy_from_user(&kcmd, cmd, sizeof(struct i2o_cmd_psetget))) | |
176 | return -EFAULT; | |
177 | ||
178 | if (get_user(reslen, kcmd.reslen)) | |
179 | return -EFAULT; | |
180 | ||
181 | c = i2o_find_iop(kcmd.iop); | |
182 | if (!c) | |
183 | return -ENXIO; | |
184 | ||
185 | dev = i2o_iop_find_device(c, kcmd.tid); | |
186 | if (!dev) | |
187 | return -ENXIO; | |
188 | ||
b81d67a5 JL |
189 | ops = memdup_user(kcmd.opbuf, kcmd.oplen); |
190 | if (IS_ERR(ops)) | |
191 | return PTR_ERR(ops); | |
1da177e4 LT |
192 | |
193 | /* | |
194 | * It's possible to have a _very_ large table | |
195 | * and that the user asks for all of it at once... | |
196 | */ | |
5cbded58 | 197 | res = kmalloc(65536, GFP_KERNEL); |
1da177e4 LT |
198 | if (!res) { |
199 | kfree(ops); | |
200 | return -ENOMEM; | |
201 | } | |
202 | ||
203 | len = i2o_parm_issue(dev, i2o_cmd, ops, kcmd.oplen, res, 65536); | |
204 | kfree(ops); | |
205 | ||
206 | if (len < 0) { | |
207 | kfree(res); | |
208 | return -EAGAIN; | |
209 | } | |
210 | ||
211 | put_user(len, kcmd.reslen); | |
212 | if (len > reslen) | |
213 | ret = -ENOBUFS; | |
214 | else if (copy_to_user(kcmd.resbuf, res, len)) | |
215 | ret = -EFAULT; | |
216 | ||
217 | kfree(res); | |
218 | ||
219 | return ret; | |
220 | }; | |
221 | ||
222 | static int i2o_cfg_swdl(unsigned long arg) | |
223 | { | |
224 | struct i2o_sw_xfer kxfer; | |
225 | struct i2o_sw_xfer __user *pxfer = (struct i2o_sw_xfer __user *)arg; | |
226 | unsigned char maxfrag = 0, curfrag = 1; | |
227 | struct i2o_dma buffer; | |
a1a5ea70 | 228 | struct i2o_message *msg; |
1da177e4 LT |
229 | unsigned int status = 0, swlen = 0, fragsize = 8192; |
230 | struct i2o_controller *c; | |
231 | ||
232 | if (copy_from_user(&kxfer, pxfer, sizeof(struct i2o_sw_xfer))) | |
233 | return -EFAULT; | |
234 | ||
235 | if (get_user(swlen, kxfer.swlen) < 0) | |
236 | return -EFAULT; | |
237 | ||
238 | if (get_user(maxfrag, kxfer.maxfrag) < 0) | |
239 | return -EFAULT; | |
240 | ||
241 | if (get_user(curfrag, kxfer.curfrag) < 0) | |
242 | return -EFAULT; | |
243 | ||
244 | if (curfrag == maxfrag) | |
245 | fragsize = swlen - (maxfrag - 1) * 8192; | |
246 | ||
247 | if (!kxfer.buf || !access_ok(VERIFY_READ, kxfer.buf, fragsize)) | |
248 | return -EFAULT; | |
249 | ||
250 | c = i2o_find_iop(kxfer.iop); | |
251 | if (!c) | |
252 | return -ENXIO; | |
253 | ||
a1a5ea70 ML |
254 | msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET); |
255 | if (IS_ERR(msg)) | |
256 | return PTR_ERR(msg); | |
1da177e4 | 257 | |
9d793b0b | 258 | if (i2o_dma_alloc(&c->pdev->dev, &buffer, fragsize)) { |
a1a5ea70 | 259 | i2o_msg_nop(c, msg); |
1da177e4 LT |
260 | return -ENOMEM; |
261 | } | |
262 | ||
9d69b7d3 RD |
263 | if (__copy_from_user(buffer.virt, kxfer.buf, fragsize)) { |
264 | i2o_msg_nop(c, msg); | |
265 | i2o_dma_free(&c->pdev->dev, &buffer); | |
266 | return -EFAULT; | |
267 | } | |
1da177e4 | 268 | |
a1a5ea70 ML |
269 | msg->u.head[0] = cpu_to_le32(NINE_WORD_MSG_SIZE | SGL_OFFSET_7); |
270 | msg->u.head[1] = | |
271 | cpu_to_le32(I2O_CMD_SW_DOWNLOAD << 24 | HOST_TID << 12 | | |
272 | ADAPTER_TID); | |
273 | msg->u.head[2] = cpu_to_le32(i2o_config_driver.context); | |
274 | msg->u.head[3] = cpu_to_le32(0); | |
275 | msg->body[0] = | |
276 | cpu_to_le32((((u32) kxfer.flags) << 24) | (((u32) kxfer. | |
277 | sw_type) << 16) | | |
278 | (((u32) maxfrag) << 8) | (((u32) curfrag))); | |
279 | msg->body[1] = cpu_to_le32(swlen); | |
280 | msg->body[2] = cpu_to_le32(kxfer.sw_id); | |
281 | msg->body[3] = cpu_to_le32(0xD0000000 | fragsize); | |
282 | msg->body[4] = cpu_to_le32(buffer.phys); | |
1da177e4 LT |
283 | |
284 | osm_debug("swdl frag %d/%d (size %d)\n", curfrag, maxfrag, fragsize); | |
a1a5ea70 | 285 | status = i2o_msg_post_wait_mem(c, msg, 60, &buffer); |
1da177e4 LT |
286 | |
287 | if (status != -ETIMEDOUT) | |
288 | i2o_dma_free(&c->pdev->dev, &buffer); | |
289 | ||
290 | if (status != I2O_POST_WAIT_OK) { | |
291 | // it fails if you try and send frags out of order | |
292 | // and for some yet unknown reasons too | |
293 | osm_info("swdl failed, DetailedStatus = %d\n", status); | |
294 | return status; | |
295 | } | |
296 | ||
297 | return 0; | |
298 | }; | |
299 | ||
300 | static int i2o_cfg_swul(unsigned long arg) | |
301 | { | |
302 | struct i2o_sw_xfer kxfer; | |
303 | struct i2o_sw_xfer __user *pxfer = (struct i2o_sw_xfer __user *)arg; | |
304 | unsigned char maxfrag = 0, curfrag = 1; | |
305 | struct i2o_dma buffer; | |
a1a5ea70 | 306 | struct i2o_message *msg; |
1da177e4 LT |
307 | unsigned int status = 0, swlen = 0, fragsize = 8192; |
308 | struct i2o_controller *c; | |
309 | int ret = 0; | |
310 | ||
311 | if (copy_from_user(&kxfer, pxfer, sizeof(struct i2o_sw_xfer))) | |
b1ffdc8f | 312 | return -EFAULT; |
1da177e4 LT |
313 | |
314 | if (get_user(swlen, kxfer.swlen) < 0) | |
b1ffdc8f | 315 | return -EFAULT; |
1da177e4 LT |
316 | |
317 | if (get_user(maxfrag, kxfer.maxfrag) < 0) | |
b1ffdc8f | 318 | return -EFAULT; |
1da177e4 LT |
319 | |
320 | if (get_user(curfrag, kxfer.curfrag) < 0) | |
b1ffdc8f | 321 | return -EFAULT; |
1da177e4 LT |
322 | |
323 | if (curfrag == maxfrag) | |
324 | fragsize = swlen - (maxfrag - 1) * 8192; | |
325 | ||
326 | if (!kxfer.buf) | |
b1ffdc8f | 327 | return -EFAULT; |
1da177e4 LT |
328 | |
329 | c = i2o_find_iop(kxfer.iop); | |
330 | if (!c) | |
331 | return -ENXIO; | |
332 | ||
a1a5ea70 ML |
333 | msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET); |
334 | if (IS_ERR(msg)) | |
335 | return PTR_ERR(msg); | |
1da177e4 | 336 | |
9d793b0b | 337 | if (i2o_dma_alloc(&c->pdev->dev, &buffer, fragsize)) { |
a1a5ea70 | 338 | i2o_msg_nop(c, msg); |
1da177e4 LT |
339 | return -ENOMEM; |
340 | } | |
341 | ||
a1a5ea70 ML |
342 | msg->u.head[0] = cpu_to_le32(NINE_WORD_MSG_SIZE | SGL_OFFSET_7); |
343 | msg->u.head[1] = | |
344 | cpu_to_le32(I2O_CMD_SW_UPLOAD << 24 | HOST_TID << 12 | ADAPTER_TID); | |
345 | msg->u.head[2] = cpu_to_le32(i2o_config_driver.context); | |
346 | msg->u.head[3] = cpu_to_le32(0); | |
347 | msg->body[0] = | |
348 | cpu_to_le32((u32) kxfer.flags << 24 | (u32) kxfer. | |
349 | sw_type << 16 | (u32) maxfrag << 8 | (u32) curfrag); | |
350 | msg->body[1] = cpu_to_le32(swlen); | |
351 | msg->body[2] = cpu_to_le32(kxfer.sw_id); | |
352 | msg->body[3] = cpu_to_le32(0xD0000000 | fragsize); | |
353 | msg->body[4] = cpu_to_le32(buffer.phys); | |
1da177e4 LT |
354 | |
355 | osm_debug("swul frag %d/%d (size %d)\n", curfrag, maxfrag, fragsize); | |
a1a5ea70 | 356 | status = i2o_msg_post_wait_mem(c, msg, 60, &buffer); |
1da177e4 LT |
357 | |
358 | if (status != I2O_POST_WAIT_OK) { | |
359 | if (status != -ETIMEDOUT) | |
360 | i2o_dma_free(&c->pdev->dev, &buffer); | |
361 | ||
362 | osm_info("swul failed, DetailedStatus = %d\n", status); | |
363 | return status; | |
364 | } | |
365 | ||
366 | if (copy_to_user(kxfer.buf, buffer.virt, fragsize)) | |
367 | ret = -EFAULT; | |
368 | ||
369 | i2o_dma_free(&c->pdev->dev, &buffer); | |
370 | ||
1da177e4 | 371 | return ret; |
b1ffdc8f | 372 | } |
1da177e4 LT |
373 | |
374 | static int i2o_cfg_swdel(unsigned long arg) | |
375 | { | |
376 | struct i2o_controller *c; | |
377 | struct i2o_sw_xfer kxfer; | |
378 | struct i2o_sw_xfer __user *pxfer = (struct i2o_sw_xfer __user *)arg; | |
a1a5ea70 | 379 | struct i2o_message *msg; |
1da177e4 LT |
380 | unsigned int swlen; |
381 | int token; | |
382 | ||
383 | if (copy_from_user(&kxfer, pxfer, sizeof(struct i2o_sw_xfer))) | |
384 | return -EFAULT; | |
385 | ||
386 | if (get_user(swlen, kxfer.swlen) < 0) | |
387 | return -EFAULT; | |
388 | ||
389 | c = i2o_find_iop(kxfer.iop); | |
390 | if (!c) | |
391 | return -ENXIO; | |
392 | ||
a1a5ea70 ML |
393 | msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET); |
394 | if (IS_ERR(msg)) | |
395 | return PTR_ERR(msg); | |
1da177e4 | 396 | |
a1a5ea70 ML |
397 | msg->u.head[0] = cpu_to_le32(SEVEN_WORD_MSG_SIZE | SGL_OFFSET_0); |
398 | msg->u.head[1] = | |
399 | cpu_to_le32(I2O_CMD_SW_REMOVE << 24 | HOST_TID << 12 | ADAPTER_TID); | |
400 | msg->u.head[2] = cpu_to_le32(i2o_config_driver.context); | |
401 | msg->u.head[3] = cpu_to_le32(0); | |
402 | msg->body[0] = | |
403 | cpu_to_le32((u32) kxfer.flags << 24 | (u32) kxfer.sw_type << 16); | |
404 | msg->body[1] = cpu_to_le32(swlen); | |
405 | msg->body[2] = cpu_to_le32(kxfer.sw_id); | |
1da177e4 | 406 | |
a1a5ea70 | 407 | token = i2o_msg_post_wait(c, msg, 10); |
1da177e4 LT |
408 | |
409 | if (token != I2O_POST_WAIT_OK) { | |
410 | osm_info("swdel failed, DetailedStatus = %d\n", token); | |
411 | return -ETIMEDOUT; | |
412 | } | |
413 | ||
414 | return 0; | |
415 | }; | |
416 | ||
417 | static int i2o_cfg_validate(unsigned long arg) | |
418 | { | |
419 | int token; | |
420 | int iop = (int)arg; | |
a1a5ea70 | 421 | struct i2o_message *msg; |
1da177e4 LT |
422 | struct i2o_controller *c; |
423 | ||
424 | c = i2o_find_iop(iop); | |
425 | if (!c) | |
426 | return -ENXIO; | |
427 | ||
a1a5ea70 ML |
428 | msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET); |
429 | if (IS_ERR(msg)) | |
430 | return PTR_ERR(msg); | |
1da177e4 | 431 | |
a1a5ea70 ML |
432 | msg->u.head[0] = cpu_to_le32(FOUR_WORD_MSG_SIZE | SGL_OFFSET_0); |
433 | msg->u.head[1] = | |
434 | cpu_to_le32(I2O_CMD_CONFIG_VALIDATE << 24 | HOST_TID << 12 | iop); | |
435 | msg->u.head[2] = cpu_to_le32(i2o_config_driver.context); | |
436 | msg->u.head[3] = cpu_to_le32(0); | |
1da177e4 | 437 | |
a1a5ea70 | 438 | token = i2o_msg_post_wait(c, msg, 10); |
1da177e4 LT |
439 | |
440 | if (token != I2O_POST_WAIT_OK) { | |
441 | osm_info("Can't validate configuration, ErrorStatus = %d\n", | |
442 | token); | |
443 | return -ETIMEDOUT; | |
444 | } | |
445 | ||
446 | return 0; | |
447 | }; | |
448 | ||
449 | static int i2o_cfg_evt_reg(unsigned long arg, struct file *fp) | |
450 | { | |
a1a5ea70 | 451 | struct i2o_message *msg; |
1da177e4 LT |
452 | struct i2o_evt_id __user *pdesc = (struct i2o_evt_id __user *)arg; |
453 | struct i2o_evt_id kdesc; | |
454 | struct i2o_controller *c; | |
455 | struct i2o_device *d; | |
456 | ||
457 | if (copy_from_user(&kdesc, pdesc, sizeof(struct i2o_evt_id))) | |
458 | return -EFAULT; | |
459 | ||
460 | /* IOP exists? */ | |
461 | c = i2o_find_iop(kdesc.iop); | |
462 | if (!c) | |
463 | return -ENXIO; | |
464 | ||
465 | /* Device exists? */ | |
466 | d = i2o_iop_find_device(c, kdesc.tid); | |
467 | if (!d) | |
468 | return -ENODEV; | |
469 | ||
a1a5ea70 ML |
470 | msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET); |
471 | if (IS_ERR(msg)) | |
472 | return PTR_ERR(msg); | |
1da177e4 | 473 | |
a1a5ea70 ML |
474 | msg->u.head[0] = cpu_to_le32(FOUR_WORD_MSG_SIZE | SGL_OFFSET_0); |
475 | msg->u.head[1] = | |
476 | cpu_to_le32(I2O_CMD_UTIL_EVT_REGISTER << 24 | HOST_TID << 12 | | |
477 | kdesc.tid); | |
478 | msg->u.head[2] = cpu_to_le32(i2o_config_driver.context); | |
479 | msg->u.head[3] = cpu_to_le32(i2o_cntxt_list_add(c, fp->private_data)); | |
480 | msg->body[0] = cpu_to_le32(kdesc.evt_mask); | |
1da177e4 | 481 | |
a1a5ea70 | 482 | i2o_msg_post(c, msg); |
1da177e4 LT |
483 | |
484 | return 0; | |
485 | } | |
486 | ||
487 | static int i2o_cfg_evt_get(unsigned long arg, struct file *fp) | |
488 | { | |
489 | struct i2o_cfg_info *p = NULL; | |
490 | struct i2o_evt_get __user *uget = (struct i2o_evt_get __user *)arg; | |
491 | struct i2o_evt_get kget; | |
492 | unsigned long flags; | |
493 | ||
494 | for (p = open_files; p; p = p->next) | |
495 | if (p->q_id == (ulong) fp->private_data) | |
496 | break; | |
497 | ||
498 | if (!p->q_len) | |
499 | return -ENOENT; | |
500 | ||
501 | memcpy(&kget.info, &p->event_q[p->q_out], sizeof(struct i2o_evt_info)); | |
502 | MODINC(p->q_out, I2O_EVT_Q_LEN); | |
503 | spin_lock_irqsave(&i2o_config_lock, flags); | |
504 | p->q_len--; | |
505 | kget.pending = p->q_len; | |
506 | kget.lost = p->q_lost; | |
507 | spin_unlock_irqrestore(&i2o_config_lock, flags); | |
508 | ||
509 | if (copy_to_user(uget, &kget, sizeof(struct i2o_evt_get))) | |
510 | return -EFAULT; | |
511 | return 0; | |
512 | } | |
513 | ||
514 | #ifdef CONFIG_COMPAT | |
f33213ec ML |
515 | static int i2o_cfg_passthru32(struct file *file, unsigned cmnd, |
516 | unsigned long arg) | |
1da177e4 LT |
517 | { |
518 | struct i2o_cmd_passthru32 __user *cmd; | |
519 | struct i2o_controller *c; | |
520 | u32 __user *user_msg; | |
521 | u32 *reply = NULL; | |
522 | u32 __user *user_reply = NULL; | |
523 | u32 size = 0; | |
524 | u32 reply_size = 0; | |
525 | u32 rcode = 0; | |
526 | struct i2o_dma sg_list[SG_TABLESIZE]; | |
527 | u32 sg_offset = 0; | |
528 | u32 sg_count = 0; | |
529 | u32 i = 0; | |
61fbfa81 | 530 | u32 sg_index = 0; |
1da177e4 LT |
531 | i2o_status_block *sb; |
532 | struct i2o_message *msg; | |
1da177e4 LT |
533 | unsigned int iop; |
534 | ||
535 | cmd = (struct i2o_cmd_passthru32 __user *)arg; | |
536 | ||
537 | if (get_user(iop, &cmd->iop) || get_user(i, &cmd->msg)) | |
538 | return -EFAULT; | |
539 | ||
540 | user_msg = compat_ptr(i); | |
541 | ||
542 | c = i2o_find_iop(iop); | |
543 | if (!c) { | |
544 | osm_debug("controller %d not found\n", iop); | |
545 | return -ENXIO; | |
546 | } | |
547 | ||
1da177e4 LT |
548 | sb = c->status_block.virt; |
549 | ||
550 | if (get_user(size, &user_msg[0])) { | |
551 | osm_warn("unable to get size!\n"); | |
552 | return -EFAULT; | |
553 | } | |
554 | size = size >> 16; | |
555 | ||
556 | if (size > sb->inbound_frame_size) { | |
557 | osm_warn("size of message > inbound_frame_size"); | |
558 | return -EFAULT; | |
559 | } | |
560 | ||
561 | user_reply = &user_msg[size]; | |
562 | ||
563 | size <<= 2; // Convert to bytes | |
564 | ||
1725d71d VA |
565 | msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET); |
566 | if (IS_ERR(msg)) | |
567 | return PTR_ERR(msg); | |
568 | ||
569 | rcode = -EFAULT; | |
1da177e4 LT |
570 | /* Copy in the user's I2O command */ |
571 | if (copy_from_user(msg, user_msg, size)) { | |
572 | osm_warn("unable to copy user message\n"); | |
1725d71d | 573 | goto out; |
1da177e4 LT |
574 | } |
575 | i2o_dump_message(msg); | |
576 | ||
577 | if (get_user(reply_size, &user_reply[0]) < 0) | |
1725d71d | 578 | goto out; |
1da177e4 LT |
579 | |
580 | reply_size >>= 16; | |
581 | reply_size <<= 2; | |
582 | ||
1725d71d | 583 | rcode = -ENOMEM; |
f6ed39a6 | 584 | reply = kzalloc(reply_size, GFP_KERNEL); |
1da177e4 LT |
585 | if (!reply) { |
586 | printk(KERN_WARNING "%s: Could not allocate reply buffer\n", | |
587 | c->name); | |
1725d71d | 588 | goto out; |
1da177e4 | 589 | } |
1da177e4 LT |
590 | |
591 | sg_offset = (msg->u.head[0] >> 4) & 0x0f; | |
592 | ||
1da177e4 LT |
593 | memset(sg_list, 0, sizeof(sg_list[0]) * SG_TABLESIZE); |
594 | if (sg_offset) { | |
595 | struct sg_simple_element *sg; | |
596 | ||
597 | if (sg_offset * 4 >= size) { | |
598 | rcode = -EFAULT; | |
599 | goto cleanup; | |
600 | } | |
601 | // TODO 64bit fix | |
602 | sg = (struct sg_simple_element *)((&msg->u.head[0]) + | |
603 | sg_offset); | |
604 | sg_count = | |
605 | (size - sg_offset * 4) / sizeof(struct sg_simple_element); | |
606 | if (sg_count > SG_TABLESIZE) { | |
607 | printk(KERN_DEBUG "%s:IOCTL SG List too large (%u)\n", | |
608 | c->name, sg_count); | |
61fbfa81 ML |
609 | rcode = -EINVAL; |
610 | goto cleanup; | |
1da177e4 LT |
611 | } |
612 | ||
613 | for (i = 0; i < sg_count; i++) { | |
614 | int sg_size; | |
615 | struct i2o_dma *p; | |
616 | ||
617 | if (!(sg[i].flag_count & 0x10000000 | |
618 | /*I2O_SGL_FLAGS_SIMPLE_ADDRESS_ELEMENT */ )) { | |
619 | printk(KERN_DEBUG | |
620 | "%s:Bad SG element %d - not simple (%x)\n", | |
621 | c->name, i, sg[i].flag_count); | |
622 | rcode = -EINVAL; | |
623 | goto cleanup; | |
624 | } | |
625 | sg_size = sg[i].flag_count & 0xffffff; | |
dcceafe2 | 626 | p = &(sg_list[sg_index]); |
1da177e4 | 627 | /* Allocate memory for the transfer */ |
9d793b0b | 628 | if (i2o_dma_alloc(&c->pdev->dev, p, sg_size)) { |
1da177e4 LT |
629 | printk(KERN_DEBUG |
630 | "%s: Could not allocate SG buffer - size = %d buffer number %d of %d\n", | |
631 | c->name, sg_size, i, sg_count); | |
632 | rcode = -ENOMEM; | |
61fbfa81 | 633 | goto sg_list_cleanup; |
1da177e4 | 634 | } |
dcceafe2 | 635 | sg_index++; |
1da177e4 LT |
636 | /* Copy in the user's SG buffer if necessary */ |
637 | if (sg[i]. | |
638 | flag_count & 0x04000000 /*I2O_SGL_FLAGS_DIR */ ) { | |
639 | // TODO 64bit fix | |
640 | if (copy_from_user | |
f33213ec ML |
641 | (p->virt, |
642 | (void __user *)(unsigned long)sg[i]. | |
643 | addr_bus, sg_size)) { | |
1da177e4 LT |
644 | printk(KERN_DEBUG |
645 | "%s: Could not copy SG buf %d FROM user\n", | |
646 | c->name, i); | |
647 | rcode = -EFAULT; | |
61fbfa81 | 648 | goto sg_list_cleanup; |
1da177e4 LT |
649 | } |
650 | } | |
651 | //TODO 64bit fix | |
652 | sg[i].addr_bus = (u32) p->phys; | |
653 | } | |
654 | } | |
655 | ||
a1a5ea70 | 656 | rcode = i2o_msg_post_wait(c, msg, 60); |
1725d71d | 657 | msg = NULL; |
dcceafe2 ML |
658 | if (rcode) { |
659 | reply[4] = ((u32) rcode) << 24; | |
61fbfa81 | 660 | goto sg_list_cleanup; |
dcceafe2 | 661 | } |
1da177e4 LT |
662 | |
663 | if (sg_offset) { | |
1725d71d | 664 | u32 rmsg[I2O_OUTBOUND_MSG_FRAME_SIZE]; |
1da177e4 LT |
665 | /* Copy back the Scatter Gather buffers back to user space */ |
666 | u32 j; | |
667 | // TODO 64bit fix | |
668 | struct sg_simple_element *sg; | |
669 | int sg_size; | |
670 | ||
671 | // re-acquire the original message to handle correctly the sg copy operation | |
1725d71d | 672 | memset(&rmsg, 0, I2O_OUTBOUND_MSG_FRAME_SIZE * 4); |
1da177e4 LT |
673 | // get user msg size in u32s |
674 | if (get_user(size, &user_msg[0])) { | |
675 | rcode = -EFAULT; | |
61fbfa81 | 676 | goto sg_list_cleanup; |
1da177e4 LT |
677 | } |
678 | size = size >> 16; | |
679 | size *= 4; | |
680 | /* Copy in the user's I2O command */ | |
1725d71d | 681 | if (copy_from_user(rmsg, user_msg, size)) { |
1da177e4 | 682 | rcode = -EFAULT; |
61fbfa81 | 683 | goto sg_list_cleanup; |
1da177e4 LT |
684 | } |
685 | sg_count = | |
686 | (size - sg_offset * 4) / sizeof(struct sg_simple_element); | |
687 | ||
688 | // TODO 64bit fix | |
1725d71d | 689 | sg = (struct sg_simple_element *)(rmsg + sg_offset); |
1da177e4 LT |
690 | for (j = 0; j < sg_count; j++) { |
691 | /* Copy out the SG list to user's buffer if necessary */ | |
692 | if (! | |
693 | (sg[j]. | |
694 | flag_count & 0x4000000 /*I2O_SGL_FLAGS_DIR */ )) { | |
695 | sg_size = sg[j].flag_count & 0xffffff; | |
696 | // TODO 64bit fix | |
697 | if (copy_to_user | |
698 | ((void __user *)(u64) sg[j].addr_bus, | |
699 | sg_list[j].virt, sg_size)) { | |
700 | printk(KERN_WARNING | |
701 | "%s: Could not copy %p TO user %x\n", | |
702 | c->name, sg_list[j].virt, | |
703 | sg[j].addr_bus); | |
704 | rcode = -EFAULT; | |
61fbfa81 | 705 | goto sg_list_cleanup; |
1da177e4 LT |
706 | } |
707 | } | |
708 | } | |
709 | } | |
710 | ||
1725d71d | 711 | sg_list_cleanup: |
1da177e4 LT |
712 | /* Copy back the reply to user space */ |
713 | if (reply_size) { | |
714 | // we wrote our own values for context - now restore the user supplied ones | |
715 | if (copy_from_user(reply + 2, user_msg + 2, sizeof(u32) * 2)) { | |
716 | printk(KERN_WARNING | |
717 | "%s: Could not copy message context FROM user\n", | |
718 | c->name); | |
719 | rcode = -EFAULT; | |
720 | } | |
721 | if (copy_to_user(user_reply, reply, reply_size)) { | |
722 | printk(KERN_WARNING | |
723 | "%s: Could not copy reply TO user\n", c->name); | |
724 | rcode = -EFAULT; | |
725 | } | |
726 | } | |
61fbfa81 ML |
727 | for (i = 0; i < sg_index; i++) |
728 | i2o_dma_free(&c->pdev->dev, &sg_list[i]); | |
729 | ||
1725d71d | 730 | cleanup: |
1da177e4 | 731 | kfree(reply); |
1725d71d VA |
732 | out: |
733 | if (msg) | |
734 | i2o_msg_nop(c, msg); | |
1da177e4 LT |
735 | return rcode; |
736 | } | |
737 | ||
f33213ec ML |
738 | static long i2o_cfg_compat_ioctl(struct file *file, unsigned cmd, |
739 | unsigned long arg) | |
f4c2c15b JB |
740 | { |
741 | int ret; | |
f33213ec ML |
742 | lock_kernel(); |
743 | switch (cmd) { | |
f4c2c15b | 744 | case I2OGETIOPS: |
5d9d6e44 | 745 | ret = i2o_cfg_ioctl(file, cmd, arg); |
f4c2c15b JB |
746 | break; |
747 | case I2OPASSTHRU32: | |
748 | ret = i2o_cfg_passthru32(file, cmd, arg); | |
749 | break; | |
750 | default: | |
751 | ret = -ENOIOCTLCMD; | |
752 | break; | |
753 | } | |
754 | unlock_kernel(); | |
755 | return ret; | |
756 | } | |
757 | ||
758 | #endif | |
1da177e4 | 759 | |
f13a6037 | 760 | #ifdef CONFIG_I2O_EXT_ADAPTEC |
1da177e4 LT |
761 | static int i2o_cfg_passthru(unsigned long arg) |
762 | { | |
763 | struct i2o_cmd_passthru __user *cmd = | |
764 | (struct i2o_cmd_passthru __user *)arg; | |
765 | struct i2o_controller *c; | |
766 | u32 __user *user_msg; | |
767 | u32 *reply = NULL; | |
768 | u32 __user *user_reply = NULL; | |
769 | u32 size = 0; | |
770 | u32 reply_size = 0; | |
771 | u32 rcode = 0; | |
9d793b0b | 772 | struct i2o_dma sg_list[SG_TABLESIZE]; |
1da177e4 LT |
773 | u32 sg_offset = 0; |
774 | u32 sg_count = 0; | |
775 | int sg_index = 0; | |
776 | u32 i = 0; | |
1da177e4 | 777 | i2o_status_block *sb; |
a1a5ea70 | 778 | struct i2o_message *msg; |
1da177e4 LT |
779 | unsigned int iop; |
780 | ||
781 | if (get_user(iop, &cmd->iop) || get_user(user_msg, &cmd->msg)) | |
782 | return -EFAULT; | |
783 | ||
784 | c = i2o_find_iop(iop); | |
785 | if (!c) { | |
786 | osm_warn("controller %d not found\n", iop); | |
787 | return -ENXIO; | |
788 | } | |
789 | ||
1da177e4 LT |
790 | sb = c->status_block.virt; |
791 | ||
792 | if (get_user(size, &user_msg[0])) | |
793 | return -EFAULT; | |
794 | size = size >> 16; | |
795 | ||
796 | if (size > sb->inbound_frame_size) { | |
797 | osm_warn("size of message > inbound_frame_size"); | |
798 | return -EFAULT; | |
799 | } | |
800 | ||
801 | user_reply = &user_msg[size]; | |
802 | ||
803 | size <<= 2; // Convert to bytes | |
804 | ||
1725d71d VA |
805 | msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET); |
806 | if (IS_ERR(msg)) | |
807 | return PTR_ERR(msg); | |
808 | ||
809 | rcode = -EFAULT; | |
1da177e4 LT |
810 | /* Copy in the user's I2O command */ |
811 | if (copy_from_user(msg, user_msg, size)) | |
1725d71d | 812 | goto out; |
1da177e4 LT |
813 | |
814 | if (get_user(reply_size, &user_reply[0]) < 0) | |
1725d71d | 815 | goto out; |
1da177e4 LT |
816 | |
817 | reply_size >>= 16; | |
818 | reply_size <<= 2; | |
819 | ||
f6ed39a6 | 820 | reply = kzalloc(reply_size, GFP_KERNEL); |
1da177e4 LT |
821 | if (!reply) { |
822 | printk(KERN_WARNING "%s: Could not allocate reply buffer\n", | |
823 | c->name); | |
1725d71d VA |
824 | rcode = -ENOMEM; |
825 | goto out; | |
1da177e4 | 826 | } |
1da177e4 LT |
827 | |
828 | sg_offset = (msg->u.head[0] >> 4) & 0x0f; | |
829 | ||
1da177e4 LT |
830 | memset(sg_list, 0, sizeof(sg_list[0]) * SG_TABLESIZE); |
831 | if (sg_offset) { | |
832 | struct sg_simple_element *sg; | |
9d793b0b | 833 | struct i2o_dma *p; |
1da177e4 LT |
834 | |
835 | if (sg_offset * 4 >= size) { | |
836 | rcode = -EFAULT; | |
837 | goto cleanup; | |
838 | } | |
839 | // TODO 64bit fix | |
840 | sg = (struct sg_simple_element *)((&msg->u.head[0]) + | |
841 | sg_offset); | |
842 | sg_count = | |
843 | (size - sg_offset * 4) / sizeof(struct sg_simple_element); | |
844 | if (sg_count > SG_TABLESIZE) { | |
845 | printk(KERN_DEBUG "%s:IOCTL SG List too large (%u)\n", | |
846 | c->name, sg_count); | |
61fbfa81 ML |
847 | rcode = -EINVAL; |
848 | goto cleanup; | |
1da177e4 LT |
849 | } |
850 | ||
851 | for (i = 0; i < sg_count; i++) { | |
852 | int sg_size; | |
853 | ||
854 | if (!(sg[i].flag_count & 0x10000000 | |
855 | /*I2O_SGL_FLAGS_SIMPLE_ADDRESS_ELEMENT */ )) { | |
856 | printk(KERN_DEBUG | |
857 | "%s:Bad SG element %d - not simple (%x)\n", | |
858 | c->name, i, sg[i].flag_count); | |
859 | rcode = -EINVAL; | |
61fbfa81 | 860 | goto sg_list_cleanup; |
1da177e4 LT |
861 | } |
862 | sg_size = sg[i].flag_count & 0xffffff; | |
9d793b0b AC |
863 | p = &(sg_list[sg_index]); |
864 | if (i2o_dma_alloc(&c->pdev->dev, p, sg_size)) { | |
1da177e4 | 865 | /* Allocate memory for the transfer */ |
1da177e4 LT |
866 | printk(KERN_DEBUG |
867 | "%s: Could not allocate SG buffer - size = %d buffer number %d of %d\n", | |
868 | c->name, sg_size, i, sg_count); | |
869 | rcode = -ENOMEM; | |
61fbfa81 | 870 | goto sg_list_cleanup; |
1da177e4 | 871 | } |
9d793b0b | 872 | sg_index++; |
1da177e4 LT |
873 | /* Copy in the user's SG buffer if necessary */ |
874 | if (sg[i]. | |
875 | flag_count & 0x04000000 /*I2O_SGL_FLAGS_DIR */ ) { | |
876 | // TODO 64bit fix | |
877 | if (copy_from_user | |
9d793b0b | 878 | (p->virt, (void __user *)sg[i].addr_bus, |
1da177e4 LT |
879 | sg_size)) { |
880 | printk(KERN_DEBUG | |
881 | "%s: Could not copy SG buf %d FROM user\n", | |
882 | c->name, i); | |
883 | rcode = -EFAULT; | |
61fbfa81 | 884 | goto sg_list_cleanup; |
1da177e4 LT |
885 | } |
886 | } | |
9d793b0b | 887 | sg[i].addr_bus = p->phys; |
1da177e4 LT |
888 | } |
889 | } | |
890 | ||
a1a5ea70 | 891 | rcode = i2o_msg_post_wait(c, msg, 60); |
1725d71d | 892 | msg = NULL; |
dcceafe2 ML |
893 | if (rcode) { |
894 | reply[4] = ((u32) rcode) << 24; | |
61fbfa81 | 895 | goto sg_list_cleanup; |
dcceafe2 | 896 | } |
1da177e4 LT |
897 | |
898 | if (sg_offset) { | |
9d793b0b | 899 | u32 rmsg[I2O_OUTBOUND_MSG_FRAME_SIZE]; |
1da177e4 LT |
900 | /* Copy back the Scatter Gather buffers back to user space */ |
901 | u32 j; | |
902 | // TODO 64bit fix | |
903 | struct sg_simple_element *sg; | |
904 | int sg_size; | |
905 | ||
906 | // re-acquire the original message to handle correctly the sg copy operation | |
1725d71d | 907 | memset(&rmsg, 0, I2O_OUTBOUND_MSG_FRAME_SIZE * 4); |
1da177e4 LT |
908 | // get user msg size in u32s |
909 | if (get_user(size, &user_msg[0])) { | |
910 | rcode = -EFAULT; | |
61fbfa81 | 911 | goto sg_list_cleanup; |
1da177e4 LT |
912 | } |
913 | size = size >> 16; | |
914 | size *= 4; | |
915 | /* Copy in the user's I2O command */ | |
1725d71d | 916 | if (copy_from_user(rmsg, user_msg, size)) { |
1da177e4 | 917 | rcode = -EFAULT; |
61fbfa81 | 918 | goto sg_list_cleanup; |
1da177e4 LT |
919 | } |
920 | sg_count = | |
921 | (size - sg_offset * 4) / sizeof(struct sg_simple_element); | |
922 | ||
923 | // TODO 64bit fix | |
1725d71d | 924 | sg = (struct sg_simple_element *)(rmsg + sg_offset); |
1da177e4 LT |
925 | for (j = 0; j < sg_count; j++) { |
926 | /* Copy out the SG list to user's buffer if necessary */ | |
927 | if (! | |
928 | (sg[j]. | |
929 | flag_count & 0x4000000 /*I2O_SGL_FLAGS_DIR */ )) { | |
930 | sg_size = sg[j].flag_count & 0xffffff; | |
931 | // TODO 64bit fix | |
932 | if (copy_to_user | |
9d793b0b | 933 | ((void __user *)sg[j].addr_bus, sg_list[j].virt, |
1da177e4 LT |
934 | sg_size)) { |
935 | printk(KERN_WARNING | |
936 | "%s: Could not copy %p TO user %x\n", | |
9d793b0b | 937 | c->name, sg_list[j].virt, |
1da177e4 LT |
938 | sg[j].addr_bus); |
939 | rcode = -EFAULT; | |
61fbfa81 | 940 | goto sg_list_cleanup; |
1da177e4 LT |
941 | } |
942 | } | |
943 | } | |
944 | } | |
945 | ||
1725d71d | 946 | sg_list_cleanup: |
1da177e4 LT |
947 | /* Copy back the reply to user space */ |
948 | if (reply_size) { | |
949 | // we wrote our own values for context - now restore the user supplied ones | |
950 | if (copy_from_user(reply + 2, user_msg + 2, sizeof(u32) * 2)) { | |
951 | printk(KERN_WARNING | |
952 | "%s: Could not copy message context FROM user\n", | |
953 | c->name); | |
954 | rcode = -EFAULT; | |
955 | } | |
956 | if (copy_to_user(user_reply, reply, reply_size)) { | |
957 | printk(KERN_WARNING | |
958 | "%s: Could not copy reply TO user\n", c->name); | |
959 | rcode = -EFAULT; | |
960 | } | |
961 | } | |
962 | ||
61fbfa81 | 963 | for (i = 0; i < sg_index; i++) |
9d793b0b | 964 | i2o_dma_free(&c->pdev->dev, &sg_list[i]); |
61fbfa81 | 965 | |
1725d71d | 966 | cleanup: |
1da177e4 | 967 | kfree(reply); |
1725d71d VA |
968 | out: |
969 | if (msg) | |
970 | i2o_msg_nop(c, msg); | |
1da177e4 LT |
971 | return rcode; |
972 | } | |
b2aaee33 | 973 | #endif |
1da177e4 LT |
974 | |
975 | /* | |
976 | * IOCTL Handler | |
977 | */ | |
5d9d6e44 | 978 | static long i2o_cfg_ioctl(struct file *fp, unsigned int cmd, unsigned long arg) |
1da177e4 LT |
979 | { |
980 | int ret; | |
981 | ||
5d9d6e44 | 982 | lock_kernel(); |
1da177e4 LT |
983 | switch (cmd) { |
984 | case I2OGETIOPS: | |
985 | ret = i2o_cfg_getiops(arg); | |
986 | break; | |
987 | ||
988 | case I2OHRTGET: | |
989 | ret = i2o_cfg_gethrt(arg); | |
990 | break; | |
991 | ||
992 | case I2OLCTGET: | |
993 | ret = i2o_cfg_getlct(arg); | |
994 | break; | |
995 | ||
996 | case I2OPARMSET: | |
997 | ret = i2o_cfg_parms(arg, I2OPARMSET); | |
998 | break; | |
999 | ||
1000 | case I2OPARMGET: | |
1001 | ret = i2o_cfg_parms(arg, I2OPARMGET); | |
1002 | break; | |
1003 | ||
1004 | case I2OSWDL: | |
1005 | ret = i2o_cfg_swdl(arg); | |
1006 | break; | |
1007 | ||
1008 | case I2OSWUL: | |
1009 | ret = i2o_cfg_swul(arg); | |
1010 | break; | |
1011 | ||
1012 | case I2OSWDEL: | |
1013 | ret = i2o_cfg_swdel(arg); | |
1014 | break; | |
1015 | ||
1016 | case I2OVALIDATE: | |
1017 | ret = i2o_cfg_validate(arg); | |
1018 | break; | |
1019 | ||
1020 | case I2OEVTREG: | |
1021 | ret = i2o_cfg_evt_reg(arg, fp); | |
1022 | break; | |
1023 | ||
1024 | case I2OEVTGET: | |
1025 | ret = i2o_cfg_evt_get(arg, fp); | |
1026 | break; | |
1027 | ||
b2aaee33 | 1028 | #ifdef CONFIG_I2O_EXT_ADAPTEC |
1da177e4 LT |
1029 | case I2OPASSTHRU: |
1030 | ret = i2o_cfg_passthru(arg); | |
1031 | break; | |
b2aaee33 | 1032 | #endif |
1da177e4 LT |
1033 | |
1034 | default: | |
1035 | osm_debug("unknown ioctl called!\n"); | |
1036 | ret = -EINVAL; | |
1037 | } | |
5d9d6e44 | 1038 | unlock_kernel(); |
1da177e4 LT |
1039 | return ret; |
1040 | } | |
1041 | ||
1042 | static int cfg_open(struct inode *inode, struct file *file) | |
1043 | { | |
1044 | struct i2o_cfg_info *tmp = | |
1045 | (struct i2o_cfg_info *)kmalloc(sizeof(struct i2o_cfg_info), | |
1046 | GFP_KERNEL); | |
1047 | unsigned long flags; | |
1048 | ||
1049 | if (!tmp) | |
1050 | return -ENOMEM; | |
1051 | ||
b78032a7 | 1052 | lock_kernel(); |
1da177e4 LT |
1053 | file->private_data = (void *)(i2o_cfg_info_id++); |
1054 | tmp->fp = file; | |
1055 | tmp->fasync = NULL; | |
1056 | tmp->q_id = (ulong) file->private_data; | |
1057 | tmp->q_len = 0; | |
1058 | tmp->q_in = 0; | |
1059 | tmp->q_out = 0; | |
1060 | tmp->q_lost = 0; | |
1061 | tmp->next = open_files; | |
1062 | ||
1063 | spin_lock_irqsave(&i2o_config_lock, flags); | |
1064 | open_files = tmp; | |
1065 | spin_unlock_irqrestore(&i2o_config_lock, flags); | |
b78032a7 | 1066 | unlock_kernel(); |
1da177e4 LT |
1067 | |
1068 | return 0; | |
1069 | } | |
1070 | ||
1071 | static int cfg_fasync(int fd, struct file *fp, int on) | |
1072 | { | |
1073 | ulong id = (ulong) fp->private_data; | |
1074 | struct i2o_cfg_info *p; | |
743115ee | 1075 | int ret = -EBADF; |
1da177e4 | 1076 | |
743115ee | 1077 | lock_kernel(); |
1da177e4 LT |
1078 | for (p = open_files; p; p = p->next) |
1079 | if (p->q_id == id) | |
1080 | break; | |
1081 | ||
743115ee JC |
1082 | if (p) |
1083 | ret = fasync_helper(fd, fp, on, &p->fasync); | |
1084 | unlock_kernel(); | |
1085 | return ret; | |
1da177e4 LT |
1086 | } |
1087 | ||
1088 | static int cfg_release(struct inode *inode, struct file *file) | |
1089 | { | |
1090 | ulong id = (ulong) file->private_data; | |
233e70f4 | 1091 | struct i2o_cfg_info *p, **q; |
1da177e4 LT |
1092 | unsigned long flags; |
1093 | ||
1094 | lock_kernel(); | |
1da177e4 | 1095 | spin_lock_irqsave(&i2o_config_lock, flags); |
233e70f4 AV |
1096 | for (q = &open_files; (p = *q) != NULL; q = &p->next) { |
1097 | if (p->q_id == id) { | |
1098 | *q = p->next; | |
1099 | kfree(p); | |
1da177e4 LT |
1100 | break; |
1101 | } | |
1da177e4 LT |
1102 | } |
1103 | spin_unlock_irqrestore(&i2o_config_lock, flags); | |
1104 | unlock_kernel(); | |
1105 | ||
1106 | return 0; | |
1107 | } | |
1108 | ||
d54b1fdb | 1109 | static const struct file_operations config_fops = { |
1da177e4 LT |
1110 | .owner = THIS_MODULE, |
1111 | .llseek = no_llseek, | |
5d9d6e44 | 1112 | .unlocked_ioctl = i2o_cfg_ioctl, |
f4c2c15b JB |
1113 | #ifdef CONFIG_COMPAT |
1114 | .compat_ioctl = i2o_cfg_compat_ioctl, | |
1115 | #endif | |
1da177e4 LT |
1116 | .open = cfg_open, |
1117 | .release = cfg_release, | |
1118 | .fasync = cfg_fasync, | |
1119 | }; | |
1120 | ||
1121 | static struct miscdevice i2o_miscdev = { | |
1122 | I2O_MINOR, | |
1123 | "i2octl", | |
1124 | &config_fops | |
1125 | }; | |
1126 | ||
f10378ff | 1127 | static int __init i2o_config_old_init(void) |
1da177e4 | 1128 | { |
1da177e4 LT |
1129 | spin_lock_init(&i2o_config_lock); |
1130 | ||
1131 | if (misc_register(&i2o_miscdev) < 0) { | |
1132 | osm_err("can't register device.\n"); | |
1133 | return -EBUSY; | |
1134 | } | |
f33213ec | 1135 | |
1da177e4 LT |
1136 | return 0; |
1137 | } | |
1138 | ||
f10378ff | 1139 | static void i2o_config_old_exit(void) |
1da177e4 | 1140 | { |
1da177e4 | 1141 | misc_deregister(&i2o_miscdev); |
1da177e4 LT |
1142 | } |
1143 | ||
1144 | MODULE_AUTHOR("Red Hat Software"); |