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 | |
22 | * Alan Cox <alan@redhat.com>: | |
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> |
1da177e4 LT |
36 | |
37 | #include <asm/uaccess.h> | |
1da177e4 | 38 | |
e62c23c7 | 39 | #include "core.h" |
1da177e4 | 40 | |
e62c23c7 | 41 | #define SG_TABLESIZE 30 |
dcceafe2 ML |
42 | |
43 | static int i2o_cfg_ioctl(struct inode *, struct file *, unsigned int, | |
44 | 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 | ||
5cbded58 | 189 | ops = kmalloc(kcmd.oplen, GFP_KERNEL); |
1da177e4 LT |
190 | if (!ops) |
191 | return -ENOMEM; | |
192 | ||
193 | if (copy_from_user(ops, kcmd.opbuf, kcmd.oplen)) { | |
194 | kfree(ops); | |
195 | return -EFAULT; | |
196 | } | |
197 | ||
198 | /* | |
199 | * It's possible to have a _very_ large table | |
200 | * and that the user asks for all of it at once... | |
201 | */ | |
5cbded58 | 202 | res = kmalloc(65536, GFP_KERNEL); |
1da177e4 LT |
203 | if (!res) { |
204 | kfree(ops); | |
205 | return -ENOMEM; | |
206 | } | |
207 | ||
208 | len = i2o_parm_issue(dev, i2o_cmd, ops, kcmd.oplen, res, 65536); | |
209 | kfree(ops); | |
210 | ||
211 | if (len < 0) { | |
212 | kfree(res); | |
213 | return -EAGAIN; | |
214 | } | |
215 | ||
216 | put_user(len, kcmd.reslen); | |
217 | if (len > reslen) | |
218 | ret = -ENOBUFS; | |
219 | else if (copy_to_user(kcmd.resbuf, res, len)) | |
220 | ret = -EFAULT; | |
221 | ||
222 | kfree(res); | |
223 | ||
224 | return ret; | |
225 | }; | |
226 | ||
227 | static int i2o_cfg_swdl(unsigned long arg) | |
228 | { | |
229 | struct i2o_sw_xfer kxfer; | |
230 | struct i2o_sw_xfer __user *pxfer = (struct i2o_sw_xfer __user *)arg; | |
231 | unsigned char maxfrag = 0, curfrag = 1; | |
232 | struct i2o_dma buffer; | |
a1a5ea70 | 233 | struct i2o_message *msg; |
1da177e4 LT |
234 | unsigned int status = 0, swlen = 0, fragsize = 8192; |
235 | struct i2o_controller *c; | |
236 | ||
237 | if (copy_from_user(&kxfer, pxfer, sizeof(struct i2o_sw_xfer))) | |
238 | return -EFAULT; | |
239 | ||
240 | if (get_user(swlen, kxfer.swlen) < 0) | |
241 | return -EFAULT; | |
242 | ||
243 | if (get_user(maxfrag, kxfer.maxfrag) < 0) | |
244 | return -EFAULT; | |
245 | ||
246 | if (get_user(curfrag, kxfer.curfrag) < 0) | |
247 | return -EFAULT; | |
248 | ||
249 | if (curfrag == maxfrag) | |
250 | fragsize = swlen - (maxfrag - 1) * 8192; | |
251 | ||
252 | if (!kxfer.buf || !access_ok(VERIFY_READ, kxfer.buf, fragsize)) | |
253 | return -EFAULT; | |
254 | ||
255 | c = i2o_find_iop(kxfer.iop); | |
256 | if (!c) | |
257 | return -ENXIO; | |
258 | ||
a1a5ea70 ML |
259 | msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET); |
260 | if (IS_ERR(msg)) | |
261 | return PTR_ERR(msg); | |
1da177e4 | 262 | |
9d793b0b | 263 | if (i2o_dma_alloc(&c->pdev->dev, &buffer, fragsize)) { |
a1a5ea70 | 264 | i2o_msg_nop(c, msg); |
1da177e4 LT |
265 | return -ENOMEM; |
266 | } | |
267 | ||
9d69b7d3 RD |
268 | if (__copy_from_user(buffer.virt, kxfer.buf, fragsize)) { |
269 | i2o_msg_nop(c, msg); | |
270 | i2o_dma_free(&c->pdev->dev, &buffer); | |
271 | return -EFAULT; | |
272 | } | |
1da177e4 | 273 | |
a1a5ea70 ML |
274 | msg->u.head[0] = cpu_to_le32(NINE_WORD_MSG_SIZE | SGL_OFFSET_7); |
275 | msg->u.head[1] = | |
276 | cpu_to_le32(I2O_CMD_SW_DOWNLOAD << 24 | HOST_TID << 12 | | |
277 | ADAPTER_TID); | |
278 | msg->u.head[2] = cpu_to_le32(i2o_config_driver.context); | |
279 | msg->u.head[3] = cpu_to_le32(0); | |
280 | msg->body[0] = | |
281 | cpu_to_le32((((u32) kxfer.flags) << 24) | (((u32) kxfer. | |
282 | sw_type) << 16) | | |
283 | (((u32) maxfrag) << 8) | (((u32) curfrag))); | |
284 | msg->body[1] = cpu_to_le32(swlen); | |
285 | msg->body[2] = cpu_to_le32(kxfer.sw_id); | |
286 | msg->body[3] = cpu_to_le32(0xD0000000 | fragsize); | |
287 | msg->body[4] = cpu_to_le32(buffer.phys); | |
1da177e4 LT |
288 | |
289 | osm_debug("swdl frag %d/%d (size %d)\n", curfrag, maxfrag, fragsize); | |
a1a5ea70 | 290 | status = i2o_msg_post_wait_mem(c, msg, 60, &buffer); |
1da177e4 LT |
291 | |
292 | if (status != -ETIMEDOUT) | |
293 | i2o_dma_free(&c->pdev->dev, &buffer); | |
294 | ||
295 | if (status != I2O_POST_WAIT_OK) { | |
296 | // it fails if you try and send frags out of order | |
297 | // and for some yet unknown reasons too | |
298 | osm_info("swdl failed, DetailedStatus = %d\n", status); | |
299 | return status; | |
300 | } | |
301 | ||
302 | return 0; | |
303 | }; | |
304 | ||
305 | static int i2o_cfg_swul(unsigned long arg) | |
306 | { | |
307 | struct i2o_sw_xfer kxfer; | |
308 | struct i2o_sw_xfer __user *pxfer = (struct i2o_sw_xfer __user *)arg; | |
309 | unsigned char maxfrag = 0, curfrag = 1; | |
310 | struct i2o_dma buffer; | |
a1a5ea70 | 311 | struct i2o_message *msg; |
1da177e4 LT |
312 | unsigned int status = 0, swlen = 0, fragsize = 8192; |
313 | struct i2o_controller *c; | |
314 | int ret = 0; | |
315 | ||
316 | if (copy_from_user(&kxfer, pxfer, sizeof(struct i2o_sw_xfer))) | |
317 | goto return_fault; | |
318 | ||
319 | if (get_user(swlen, kxfer.swlen) < 0) | |
320 | goto return_fault; | |
321 | ||
322 | if (get_user(maxfrag, kxfer.maxfrag) < 0) | |
323 | goto return_fault; | |
324 | ||
325 | if (get_user(curfrag, kxfer.curfrag) < 0) | |
326 | goto return_fault; | |
327 | ||
328 | if (curfrag == maxfrag) | |
329 | fragsize = swlen - (maxfrag - 1) * 8192; | |
330 | ||
331 | if (!kxfer.buf) | |
332 | goto return_fault; | |
333 | ||
334 | c = i2o_find_iop(kxfer.iop); | |
335 | if (!c) | |
336 | return -ENXIO; | |
337 | ||
a1a5ea70 ML |
338 | msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET); |
339 | if (IS_ERR(msg)) | |
340 | return PTR_ERR(msg); | |
1da177e4 | 341 | |
9d793b0b | 342 | if (i2o_dma_alloc(&c->pdev->dev, &buffer, fragsize)) { |
a1a5ea70 | 343 | i2o_msg_nop(c, msg); |
1da177e4 LT |
344 | return -ENOMEM; |
345 | } | |
346 | ||
a1a5ea70 ML |
347 | msg->u.head[0] = cpu_to_le32(NINE_WORD_MSG_SIZE | SGL_OFFSET_7); |
348 | msg->u.head[1] = | |
349 | cpu_to_le32(I2O_CMD_SW_UPLOAD << 24 | HOST_TID << 12 | ADAPTER_TID); | |
350 | msg->u.head[2] = cpu_to_le32(i2o_config_driver.context); | |
351 | msg->u.head[3] = cpu_to_le32(0); | |
352 | msg->body[0] = | |
353 | cpu_to_le32((u32) kxfer.flags << 24 | (u32) kxfer. | |
354 | sw_type << 16 | (u32) maxfrag << 8 | (u32) curfrag); | |
355 | msg->body[1] = cpu_to_le32(swlen); | |
356 | msg->body[2] = cpu_to_le32(kxfer.sw_id); | |
357 | msg->body[3] = cpu_to_le32(0xD0000000 | fragsize); | |
358 | msg->body[4] = cpu_to_le32(buffer.phys); | |
1da177e4 LT |
359 | |
360 | osm_debug("swul frag %d/%d (size %d)\n", curfrag, maxfrag, fragsize); | |
a1a5ea70 | 361 | status = i2o_msg_post_wait_mem(c, msg, 60, &buffer); |
1da177e4 LT |
362 | |
363 | if (status != I2O_POST_WAIT_OK) { | |
364 | if (status != -ETIMEDOUT) | |
365 | i2o_dma_free(&c->pdev->dev, &buffer); | |
366 | ||
367 | osm_info("swul failed, DetailedStatus = %d\n", status); | |
368 | return status; | |
369 | } | |
370 | ||
371 | if (copy_to_user(kxfer.buf, buffer.virt, fragsize)) | |
372 | ret = -EFAULT; | |
373 | ||
374 | i2o_dma_free(&c->pdev->dev, &buffer); | |
375 | ||
f33213ec | 376 | return_ret: |
1da177e4 | 377 | return ret; |
f33213ec | 378 | return_fault: |
1da177e4 LT |
379 | ret = -EFAULT; |
380 | goto return_ret; | |
381 | }; | |
382 | ||
383 | static int i2o_cfg_swdel(unsigned long arg) | |
384 | { | |
385 | struct i2o_controller *c; | |
386 | struct i2o_sw_xfer kxfer; | |
387 | struct i2o_sw_xfer __user *pxfer = (struct i2o_sw_xfer __user *)arg; | |
a1a5ea70 | 388 | struct i2o_message *msg; |
1da177e4 LT |
389 | unsigned int swlen; |
390 | int token; | |
391 | ||
392 | if (copy_from_user(&kxfer, pxfer, sizeof(struct i2o_sw_xfer))) | |
393 | return -EFAULT; | |
394 | ||
395 | if (get_user(swlen, kxfer.swlen) < 0) | |
396 | return -EFAULT; | |
397 | ||
398 | c = i2o_find_iop(kxfer.iop); | |
399 | if (!c) | |
400 | return -ENXIO; | |
401 | ||
a1a5ea70 ML |
402 | msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET); |
403 | if (IS_ERR(msg)) | |
404 | return PTR_ERR(msg); | |
1da177e4 | 405 | |
a1a5ea70 ML |
406 | msg->u.head[0] = cpu_to_le32(SEVEN_WORD_MSG_SIZE | SGL_OFFSET_0); |
407 | msg->u.head[1] = | |
408 | cpu_to_le32(I2O_CMD_SW_REMOVE << 24 | HOST_TID << 12 | ADAPTER_TID); | |
409 | msg->u.head[2] = cpu_to_le32(i2o_config_driver.context); | |
410 | msg->u.head[3] = cpu_to_le32(0); | |
411 | msg->body[0] = | |
412 | cpu_to_le32((u32) kxfer.flags << 24 | (u32) kxfer.sw_type << 16); | |
413 | msg->body[1] = cpu_to_le32(swlen); | |
414 | msg->body[2] = cpu_to_le32(kxfer.sw_id); | |
1da177e4 | 415 | |
a1a5ea70 | 416 | token = i2o_msg_post_wait(c, msg, 10); |
1da177e4 LT |
417 | |
418 | if (token != I2O_POST_WAIT_OK) { | |
419 | osm_info("swdel failed, DetailedStatus = %d\n", token); | |
420 | return -ETIMEDOUT; | |
421 | } | |
422 | ||
423 | return 0; | |
424 | }; | |
425 | ||
426 | static int i2o_cfg_validate(unsigned long arg) | |
427 | { | |
428 | int token; | |
429 | int iop = (int)arg; | |
a1a5ea70 | 430 | struct i2o_message *msg; |
1da177e4 LT |
431 | struct i2o_controller *c; |
432 | ||
433 | c = i2o_find_iop(iop); | |
434 | if (!c) | |
435 | return -ENXIO; | |
436 | ||
a1a5ea70 ML |
437 | msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET); |
438 | if (IS_ERR(msg)) | |
439 | return PTR_ERR(msg); | |
1da177e4 | 440 | |
a1a5ea70 ML |
441 | msg->u.head[0] = cpu_to_le32(FOUR_WORD_MSG_SIZE | SGL_OFFSET_0); |
442 | msg->u.head[1] = | |
443 | cpu_to_le32(I2O_CMD_CONFIG_VALIDATE << 24 | HOST_TID << 12 | iop); | |
444 | msg->u.head[2] = cpu_to_le32(i2o_config_driver.context); | |
445 | msg->u.head[3] = cpu_to_le32(0); | |
1da177e4 | 446 | |
a1a5ea70 | 447 | token = i2o_msg_post_wait(c, msg, 10); |
1da177e4 LT |
448 | |
449 | if (token != I2O_POST_WAIT_OK) { | |
450 | osm_info("Can't validate configuration, ErrorStatus = %d\n", | |
451 | token); | |
452 | return -ETIMEDOUT; | |
453 | } | |
454 | ||
455 | return 0; | |
456 | }; | |
457 | ||
458 | static int i2o_cfg_evt_reg(unsigned long arg, struct file *fp) | |
459 | { | |
a1a5ea70 | 460 | struct i2o_message *msg; |
1da177e4 LT |
461 | struct i2o_evt_id __user *pdesc = (struct i2o_evt_id __user *)arg; |
462 | struct i2o_evt_id kdesc; | |
463 | struct i2o_controller *c; | |
464 | struct i2o_device *d; | |
465 | ||
466 | if (copy_from_user(&kdesc, pdesc, sizeof(struct i2o_evt_id))) | |
467 | return -EFAULT; | |
468 | ||
469 | /* IOP exists? */ | |
470 | c = i2o_find_iop(kdesc.iop); | |
471 | if (!c) | |
472 | return -ENXIO; | |
473 | ||
474 | /* Device exists? */ | |
475 | d = i2o_iop_find_device(c, kdesc.tid); | |
476 | if (!d) | |
477 | return -ENODEV; | |
478 | ||
a1a5ea70 ML |
479 | msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET); |
480 | if (IS_ERR(msg)) | |
481 | return PTR_ERR(msg); | |
1da177e4 | 482 | |
a1a5ea70 ML |
483 | msg->u.head[0] = cpu_to_le32(FOUR_WORD_MSG_SIZE | SGL_OFFSET_0); |
484 | msg->u.head[1] = | |
485 | cpu_to_le32(I2O_CMD_UTIL_EVT_REGISTER << 24 | HOST_TID << 12 | | |
486 | kdesc.tid); | |
487 | msg->u.head[2] = cpu_to_le32(i2o_config_driver.context); | |
488 | msg->u.head[3] = cpu_to_le32(i2o_cntxt_list_add(c, fp->private_data)); | |
489 | msg->body[0] = cpu_to_le32(kdesc.evt_mask); | |
1da177e4 | 490 | |
a1a5ea70 | 491 | i2o_msg_post(c, msg); |
1da177e4 LT |
492 | |
493 | return 0; | |
494 | } | |
495 | ||
496 | static int i2o_cfg_evt_get(unsigned long arg, struct file *fp) | |
497 | { | |
498 | struct i2o_cfg_info *p = NULL; | |
499 | struct i2o_evt_get __user *uget = (struct i2o_evt_get __user *)arg; | |
500 | struct i2o_evt_get kget; | |
501 | unsigned long flags; | |
502 | ||
503 | for (p = open_files; p; p = p->next) | |
504 | if (p->q_id == (ulong) fp->private_data) | |
505 | break; | |
506 | ||
507 | if (!p->q_len) | |
508 | return -ENOENT; | |
509 | ||
510 | memcpy(&kget.info, &p->event_q[p->q_out], sizeof(struct i2o_evt_info)); | |
511 | MODINC(p->q_out, I2O_EVT_Q_LEN); | |
512 | spin_lock_irqsave(&i2o_config_lock, flags); | |
513 | p->q_len--; | |
514 | kget.pending = p->q_len; | |
515 | kget.lost = p->q_lost; | |
516 | spin_unlock_irqrestore(&i2o_config_lock, flags); | |
517 | ||
518 | if (copy_to_user(uget, &kget, sizeof(struct i2o_evt_get))) | |
519 | return -EFAULT; | |
520 | return 0; | |
521 | } | |
522 | ||
523 | #ifdef CONFIG_COMPAT | |
f33213ec ML |
524 | static int i2o_cfg_passthru32(struct file *file, unsigned cmnd, |
525 | unsigned long arg) | |
1da177e4 LT |
526 | { |
527 | struct i2o_cmd_passthru32 __user *cmd; | |
528 | struct i2o_controller *c; | |
529 | u32 __user *user_msg; | |
530 | u32 *reply = NULL; | |
531 | u32 __user *user_reply = NULL; | |
532 | u32 size = 0; | |
533 | u32 reply_size = 0; | |
534 | u32 rcode = 0; | |
535 | struct i2o_dma sg_list[SG_TABLESIZE]; | |
536 | u32 sg_offset = 0; | |
537 | u32 sg_count = 0; | |
538 | u32 i = 0; | |
61fbfa81 | 539 | u32 sg_index = 0; |
1da177e4 LT |
540 | i2o_status_block *sb; |
541 | struct i2o_message *msg; | |
1da177e4 LT |
542 | unsigned int iop; |
543 | ||
544 | cmd = (struct i2o_cmd_passthru32 __user *)arg; | |
545 | ||
546 | if (get_user(iop, &cmd->iop) || get_user(i, &cmd->msg)) | |
547 | return -EFAULT; | |
548 | ||
549 | user_msg = compat_ptr(i); | |
550 | ||
551 | c = i2o_find_iop(iop); | |
552 | if (!c) { | |
553 | osm_debug("controller %d not found\n", iop); | |
554 | return -ENXIO; | |
555 | } | |
556 | ||
1da177e4 LT |
557 | sb = c->status_block.virt; |
558 | ||
559 | if (get_user(size, &user_msg[0])) { | |
560 | osm_warn("unable to get size!\n"); | |
561 | return -EFAULT; | |
562 | } | |
563 | size = size >> 16; | |
564 | ||
565 | if (size > sb->inbound_frame_size) { | |
566 | osm_warn("size of message > inbound_frame_size"); | |
567 | return -EFAULT; | |
568 | } | |
569 | ||
570 | user_reply = &user_msg[size]; | |
571 | ||
572 | size <<= 2; // Convert to bytes | |
573 | ||
1725d71d VA |
574 | msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET); |
575 | if (IS_ERR(msg)) | |
576 | return PTR_ERR(msg); | |
577 | ||
578 | rcode = -EFAULT; | |
1da177e4 LT |
579 | /* Copy in the user's I2O command */ |
580 | if (copy_from_user(msg, user_msg, size)) { | |
581 | osm_warn("unable to copy user message\n"); | |
1725d71d | 582 | goto out; |
1da177e4 LT |
583 | } |
584 | i2o_dump_message(msg); | |
585 | ||
586 | if (get_user(reply_size, &user_reply[0]) < 0) | |
1725d71d | 587 | goto out; |
1da177e4 LT |
588 | |
589 | reply_size >>= 16; | |
590 | reply_size <<= 2; | |
591 | ||
1725d71d | 592 | rcode = -ENOMEM; |
f6ed39a6 | 593 | reply = kzalloc(reply_size, GFP_KERNEL); |
1da177e4 LT |
594 | if (!reply) { |
595 | printk(KERN_WARNING "%s: Could not allocate reply buffer\n", | |
596 | c->name); | |
1725d71d | 597 | goto out; |
1da177e4 | 598 | } |
1da177e4 LT |
599 | |
600 | sg_offset = (msg->u.head[0] >> 4) & 0x0f; | |
601 | ||
1da177e4 LT |
602 | memset(sg_list, 0, sizeof(sg_list[0]) * SG_TABLESIZE); |
603 | if (sg_offset) { | |
604 | struct sg_simple_element *sg; | |
605 | ||
606 | if (sg_offset * 4 >= size) { | |
607 | rcode = -EFAULT; | |
608 | goto cleanup; | |
609 | } | |
610 | // TODO 64bit fix | |
611 | sg = (struct sg_simple_element *)((&msg->u.head[0]) + | |
612 | sg_offset); | |
613 | sg_count = | |
614 | (size - sg_offset * 4) / sizeof(struct sg_simple_element); | |
615 | if (sg_count > SG_TABLESIZE) { | |
616 | printk(KERN_DEBUG "%s:IOCTL SG List too large (%u)\n", | |
617 | c->name, sg_count); | |
61fbfa81 ML |
618 | rcode = -EINVAL; |
619 | goto cleanup; | |
1da177e4 LT |
620 | } |
621 | ||
622 | for (i = 0; i < sg_count; i++) { | |
623 | int sg_size; | |
624 | struct i2o_dma *p; | |
625 | ||
626 | if (!(sg[i].flag_count & 0x10000000 | |
627 | /*I2O_SGL_FLAGS_SIMPLE_ADDRESS_ELEMENT */ )) { | |
628 | printk(KERN_DEBUG | |
629 | "%s:Bad SG element %d - not simple (%x)\n", | |
630 | c->name, i, sg[i].flag_count); | |
631 | rcode = -EINVAL; | |
632 | goto cleanup; | |
633 | } | |
634 | sg_size = sg[i].flag_count & 0xffffff; | |
dcceafe2 | 635 | p = &(sg_list[sg_index]); |
1da177e4 | 636 | /* Allocate memory for the transfer */ |
9d793b0b | 637 | if (i2o_dma_alloc(&c->pdev->dev, p, sg_size)) { |
1da177e4 LT |
638 | printk(KERN_DEBUG |
639 | "%s: Could not allocate SG buffer - size = %d buffer number %d of %d\n", | |
640 | c->name, sg_size, i, sg_count); | |
641 | rcode = -ENOMEM; | |
61fbfa81 | 642 | goto sg_list_cleanup; |
1da177e4 | 643 | } |
dcceafe2 | 644 | sg_index++; |
1da177e4 LT |
645 | /* Copy in the user's SG buffer if necessary */ |
646 | if (sg[i]. | |
647 | flag_count & 0x04000000 /*I2O_SGL_FLAGS_DIR */ ) { | |
648 | // TODO 64bit fix | |
649 | if (copy_from_user | |
f33213ec ML |
650 | (p->virt, |
651 | (void __user *)(unsigned long)sg[i]. | |
652 | addr_bus, sg_size)) { | |
1da177e4 LT |
653 | printk(KERN_DEBUG |
654 | "%s: Could not copy SG buf %d FROM user\n", | |
655 | c->name, i); | |
656 | rcode = -EFAULT; | |
61fbfa81 | 657 | goto sg_list_cleanup; |
1da177e4 LT |
658 | } |
659 | } | |
660 | //TODO 64bit fix | |
661 | sg[i].addr_bus = (u32) p->phys; | |
662 | } | |
663 | } | |
664 | ||
a1a5ea70 | 665 | rcode = i2o_msg_post_wait(c, msg, 60); |
1725d71d | 666 | msg = NULL; |
dcceafe2 ML |
667 | if (rcode) { |
668 | reply[4] = ((u32) rcode) << 24; | |
61fbfa81 | 669 | goto sg_list_cleanup; |
dcceafe2 | 670 | } |
1da177e4 LT |
671 | |
672 | if (sg_offset) { | |
1725d71d | 673 | u32 rmsg[I2O_OUTBOUND_MSG_FRAME_SIZE]; |
1da177e4 LT |
674 | /* Copy back the Scatter Gather buffers back to user space */ |
675 | u32 j; | |
676 | // TODO 64bit fix | |
677 | struct sg_simple_element *sg; | |
678 | int sg_size; | |
679 | ||
680 | // re-acquire the original message to handle correctly the sg copy operation | |
1725d71d | 681 | memset(&rmsg, 0, I2O_OUTBOUND_MSG_FRAME_SIZE * 4); |
1da177e4 LT |
682 | // get user msg size in u32s |
683 | if (get_user(size, &user_msg[0])) { | |
684 | rcode = -EFAULT; | |
61fbfa81 | 685 | goto sg_list_cleanup; |
1da177e4 LT |
686 | } |
687 | size = size >> 16; | |
688 | size *= 4; | |
689 | /* Copy in the user's I2O command */ | |
1725d71d | 690 | if (copy_from_user(rmsg, user_msg, size)) { |
1da177e4 | 691 | rcode = -EFAULT; |
61fbfa81 | 692 | goto sg_list_cleanup; |
1da177e4 LT |
693 | } |
694 | sg_count = | |
695 | (size - sg_offset * 4) / sizeof(struct sg_simple_element); | |
696 | ||
697 | // TODO 64bit fix | |
1725d71d | 698 | sg = (struct sg_simple_element *)(rmsg + sg_offset); |
1da177e4 LT |
699 | for (j = 0; j < sg_count; j++) { |
700 | /* Copy out the SG list to user's buffer if necessary */ | |
701 | if (! | |
702 | (sg[j]. | |
703 | flag_count & 0x4000000 /*I2O_SGL_FLAGS_DIR */ )) { | |
704 | sg_size = sg[j].flag_count & 0xffffff; | |
705 | // TODO 64bit fix | |
706 | if (copy_to_user | |
707 | ((void __user *)(u64) sg[j].addr_bus, | |
708 | sg_list[j].virt, sg_size)) { | |
709 | printk(KERN_WARNING | |
710 | "%s: Could not copy %p TO user %x\n", | |
711 | c->name, sg_list[j].virt, | |
712 | sg[j].addr_bus); | |
713 | rcode = -EFAULT; | |
61fbfa81 | 714 | goto sg_list_cleanup; |
1da177e4 LT |
715 | } |
716 | } | |
717 | } | |
718 | } | |
719 | ||
1725d71d | 720 | sg_list_cleanup: |
1da177e4 LT |
721 | /* Copy back the reply to user space */ |
722 | if (reply_size) { | |
723 | // we wrote our own values for context - now restore the user supplied ones | |
724 | if (copy_from_user(reply + 2, user_msg + 2, sizeof(u32) * 2)) { | |
725 | printk(KERN_WARNING | |
726 | "%s: Could not copy message context FROM user\n", | |
727 | c->name); | |
728 | rcode = -EFAULT; | |
729 | } | |
730 | if (copy_to_user(user_reply, reply, reply_size)) { | |
731 | printk(KERN_WARNING | |
732 | "%s: Could not copy reply TO user\n", c->name); | |
733 | rcode = -EFAULT; | |
734 | } | |
735 | } | |
61fbfa81 ML |
736 | for (i = 0; i < sg_index; i++) |
737 | i2o_dma_free(&c->pdev->dev, &sg_list[i]); | |
738 | ||
1725d71d | 739 | cleanup: |
1da177e4 | 740 | kfree(reply); |
1725d71d VA |
741 | out: |
742 | if (msg) | |
743 | i2o_msg_nop(c, msg); | |
1da177e4 LT |
744 | return rcode; |
745 | } | |
746 | ||
f33213ec ML |
747 | static long i2o_cfg_compat_ioctl(struct file *file, unsigned cmd, |
748 | unsigned long arg) | |
f4c2c15b | 749 | { |
750 | int ret; | |
f33213ec ML |
751 | lock_kernel(); |
752 | switch (cmd) { | |
f4c2c15b | 753 | case I2OGETIOPS: |
754 | ret = i2o_cfg_ioctl(NULL, file, cmd, arg); | |
755 | break; | |
756 | case I2OPASSTHRU32: | |
757 | ret = i2o_cfg_passthru32(file, cmd, arg); | |
758 | break; | |
759 | default: | |
760 | ret = -ENOIOCTLCMD; | |
761 | break; | |
762 | } | |
763 | unlock_kernel(); | |
764 | return ret; | |
765 | } | |
766 | ||
767 | #endif | |
1da177e4 | 768 | |
f13a6037 | 769 | #ifdef CONFIG_I2O_EXT_ADAPTEC |
1da177e4 LT |
770 | static int i2o_cfg_passthru(unsigned long arg) |
771 | { | |
772 | struct i2o_cmd_passthru __user *cmd = | |
773 | (struct i2o_cmd_passthru __user *)arg; | |
774 | struct i2o_controller *c; | |
775 | u32 __user *user_msg; | |
776 | u32 *reply = NULL; | |
777 | u32 __user *user_reply = NULL; | |
778 | u32 size = 0; | |
779 | u32 reply_size = 0; | |
780 | u32 rcode = 0; | |
9d793b0b | 781 | struct i2o_dma sg_list[SG_TABLESIZE]; |
1da177e4 LT |
782 | u32 sg_offset = 0; |
783 | u32 sg_count = 0; | |
784 | int sg_index = 0; | |
785 | u32 i = 0; | |
1da177e4 | 786 | i2o_status_block *sb; |
a1a5ea70 | 787 | struct i2o_message *msg; |
1da177e4 LT |
788 | unsigned int iop; |
789 | ||
790 | if (get_user(iop, &cmd->iop) || get_user(user_msg, &cmd->msg)) | |
791 | return -EFAULT; | |
792 | ||
793 | c = i2o_find_iop(iop); | |
794 | if (!c) { | |
795 | osm_warn("controller %d not found\n", iop); | |
796 | return -ENXIO; | |
797 | } | |
798 | ||
1da177e4 LT |
799 | sb = c->status_block.virt; |
800 | ||
801 | if (get_user(size, &user_msg[0])) | |
802 | return -EFAULT; | |
803 | size = size >> 16; | |
804 | ||
805 | if (size > sb->inbound_frame_size) { | |
806 | osm_warn("size of message > inbound_frame_size"); | |
807 | return -EFAULT; | |
808 | } | |
809 | ||
810 | user_reply = &user_msg[size]; | |
811 | ||
812 | size <<= 2; // Convert to bytes | |
813 | ||
1725d71d VA |
814 | msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET); |
815 | if (IS_ERR(msg)) | |
816 | return PTR_ERR(msg); | |
817 | ||
818 | rcode = -EFAULT; | |
1da177e4 LT |
819 | /* Copy in the user's I2O command */ |
820 | if (copy_from_user(msg, user_msg, size)) | |
1725d71d | 821 | goto out; |
1da177e4 LT |
822 | |
823 | if (get_user(reply_size, &user_reply[0]) < 0) | |
1725d71d | 824 | goto out; |
1da177e4 LT |
825 | |
826 | reply_size >>= 16; | |
827 | reply_size <<= 2; | |
828 | ||
f6ed39a6 | 829 | reply = kzalloc(reply_size, GFP_KERNEL); |
1da177e4 LT |
830 | if (!reply) { |
831 | printk(KERN_WARNING "%s: Could not allocate reply buffer\n", | |
832 | c->name); | |
1725d71d VA |
833 | rcode = -ENOMEM; |
834 | goto out; | |
1da177e4 | 835 | } |
1da177e4 LT |
836 | |
837 | sg_offset = (msg->u.head[0] >> 4) & 0x0f; | |
838 | ||
1da177e4 LT |
839 | memset(sg_list, 0, sizeof(sg_list[0]) * SG_TABLESIZE); |
840 | if (sg_offset) { | |
841 | struct sg_simple_element *sg; | |
9d793b0b | 842 | struct i2o_dma *p; |
1da177e4 LT |
843 | |
844 | if (sg_offset * 4 >= size) { | |
845 | rcode = -EFAULT; | |
846 | goto cleanup; | |
847 | } | |
848 | // TODO 64bit fix | |
849 | sg = (struct sg_simple_element *)((&msg->u.head[0]) + | |
850 | sg_offset); | |
851 | sg_count = | |
852 | (size - sg_offset * 4) / sizeof(struct sg_simple_element); | |
853 | if (sg_count > SG_TABLESIZE) { | |
854 | printk(KERN_DEBUG "%s:IOCTL SG List too large (%u)\n", | |
855 | c->name, sg_count); | |
61fbfa81 ML |
856 | rcode = -EINVAL; |
857 | goto cleanup; | |
1da177e4 LT |
858 | } |
859 | ||
860 | for (i = 0; i < sg_count; i++) { | |
861 | int sg_size; | |
862 | ||
863 | if (!(sg[i].flag_count & 0x10000000 | |
864 | /*I2O_SGL_FLAGS_SIMPLE_ADDRESS_ELEMENT */ )) { | |
865 | printk(KERN_DEBUG | |
866 | "%s:Bad SG element %d - not simple (%x)\n", | |
867 | c->name, i, sg[i].flag_count); | |
868 | rcode = -EINVAL; | |
61fbfa81 | 869 | goto sg_list_cleanup; |
1da177e4 LT |
870 | } |
871 | sg_size = sg[i].flag_count & 0xffffff; | |
9d793b0b AC |
872 | p = &(sg_list[sg_index]); |
873 | if (i2o_dma_alloc(&c->pdev->dev, p, sg_size)) { | |
1da177e4 | 874 | /* Allocate memory for the transfer */ |
1da177e4 LT |
875 | printk(KERN_DEBUG |
876 | "%s: Could not allocate SG buffer - size = %d buffer number %d of %d\n", | |
877 | c->name, sg_size, i, sg_count); | |
878 | rcode = -ENOMEM; | |
61fbfa81 | 879 | goto sg_list_cleanup; |
1da177e4 | 880 | } |
9d793b0b | 881 | sg_index++; |
1da177e4 LT |
882 | /* Copy in the user's SG buffer if necessary */ |
883 | if (sg[i]. | |
884 | flag_count & 0x04000000 /*I2O_SGL_FLAGS_DIR */ ) { | |
885 | // TODO 64bit fix | |
886 | if (copy_from_user | |
9d793b0b | 887 | (p->virt, (void __user *)sg[i].addr_bus, |
1da177e4 LT |
888 | sg_size)) { |
889 | printk(KERN_DEBUG | |
890 | "%s: Could not copy SG buf %d FROM user\n", | |
891 | c->name, i); | |
892 | rcode = -EFAULT; | |
61fbfa81 | 893 | goto sg_list_cleanup; |
1da177e4 LT |
894 | } |
895 | } | |
9d793b0b | 896 | sg[i].addr_bus = p->phys; |
1da177e4 LT |
897 | } |
898 | } | |
899 | ||
a1a5ea70 | 900 | rcode = i2o_msg_post_wait(c, msg, 60); |
1725d71d | 901 | msg = NULL; |
dcceafe2 ML |
902 | if (rcode) { |
903 | reply[4] = ((u32) rcode) << 24; | |
61fbfa81 | 904 | goto sg_list_cleanup; |
dcceafe2 | 905 | } |
1da177e4 LT |
906 | |
907 | if (sg_offset) { | |
9d793b0b | 908 | u32 rmsg[I2O_OUTBOUND_MSG_FRAME_SIZE]; |
1da177e4 LT |
909 | /* Copy back the Scatter Gather buffers back to user space */ |
910 | u32 j; | |
911 | // TODO 64bit fix | |
912 | struct sg_simple_element *sg; | |
913 | int sg_size; | |
914 | ||
915 | // re-acquire the original message to handle correctly the sg copy operation | |
1725d71d | 916 | memset(&rmsg, 0, I2O_OUTBOUND_MSG_FRAME_SIZE * 4); |
1da177e4 LT |
917 | // get user msg size in u32s |
918 | if (get_user(size, &user_msg[0])) { | |
919 | rcode = -EFAULT; | |
61fbfa81 | 920 | goto sg_list_cleanup; |
1da177e4 LT |
921 | } |
922 | size = size >> 16; | |
923 | size *= 4; | |
924 | /* Copy in the user's I2O command */ | |
1725d71d | 925 | if (copy_from_user(rmsg, user_msg, size)) { |
1da177e4 | 926 | rcode = -EFAULT; |
61fbfa81 | 927 | goto sg_list_cleanup; |
1da177e4 LT |
928 | } |
929 | sg_count = | |
930 | (size - sg_offset * 4) / sizeof(struct sg_simple_element); | |
931 | ||
932 | // TODO 64bit fix | |
1725d71d | 933 | sg = (struct sg_simple_element *)(rmsg + sg_offset); |
1da177e4 LT |
934 | for (j = 0; j < sg_count; j++) { |
935 | /* Copy out the SG list to user's buffer if necessary */ | |
936 | if (! | |
937 | (sg[j]. | |
938 | flag_count & 0x4000000 /*I2O_SGL_FLAGS_DIR */ )) { | |
939 | sg_size = sg[j].flag_count & 0xffffff; | |
940 | // TODO 64bit fix | |
941 | if (copy_to_user | |
9d793b0b | 942 | ((void __user *)sg[j].addr_bus, sg_list[j].virt, |
1da177e4 LT |
943 | sg_size)) { |
944 | printk(KERN_WARNING | |
945 | "%s: Could not copy %p TO user %x\n", | |
9d793b0b | 946 | c->name, sg_list[j].virt, |
1da177e4 LT |
947 | sg[j].addr_bus); |
948 | rcode = -EFAULT; | |
61fbfa81 | 949 | goto sg_list_cleanup; |
1da177e4 LT |
950 | } |
951 | } | |
952 | } | |
953 | } | |
954 | ||
1725d71d | 955 | sg_list_cleanup: |
1da177e4 LT |
956 | /* Copy back the reply to user space */ |
957 | if (reply_size) { | |
958 | // we wrote our own values for context - now restore the user supplied ones | |
959 | if (copy_from_user(reply + 2, user_msg + 2, sizeof(u32) * 2)) { | |
960 | printk(KERN_WARNING | |
961 | "%s: Could not copy message context FROM user\n", | |
962 | c->name); | |
963 | rcode = -EFAULT; | |
964 | } | |
965 | if (copy_to_user(user_reply, reply, reply_size)) { | |
966 | printk(KERN_WARNING | |
967 | "%s: Could not copy reply TO user\n", c->name); | |
968 | rcode = -EFAULT; | |
969 | } | |
970 | } | |
971 | ||
61fbfa81 | 972 | for (i = 0; i < sg_index; i++) |
9d793b0b | 973 | i2o_dma_free(&c->pdev->dev, &sg_list[i]); |
61fbfa81 | 974 | |
1725d71d | 975 | cleanup: |
1da177e4 | 976 | kfree(reply); |
1725d71d VA |
977 | out: |
978 | if (msg) | |
979 | i2o_msg_nop(c, msg); | |
1da177e4 LT |
980 | return rcode; |
981 | } | |
b2aaee33 | 982 | #endif |
1da177e4 LT |
983 | |
984 | /* | |
985 | * IOCTL Handler | |
986 | */ | |
987 | static int i2o_cfg_ioctl(struct inode *inode, struct file *fp, unsigned int cmd, | |
988 | unsigned long arg) | |
989 | { | |
990 | int ret; | |
991 | ||
992 | switch (cmd) { | |
993 | case I2OGETIOPS: | |
994 | ret = i2o_cfg_getiops(arg); | |
995 | break; | |
996 | ||
997 | case I2OHRTGET: | |
998 | ret = i2o_cfg_gethrt(arg); | |
999 | break; | |
1000 | ||
1001 | case I2OLCTGET: | |
1002 | ret = i2o_cfg_getlct(arg); | |
1003 | break; | |
1004 | ||
1005 | case I2OPARMSET: | |
1006 | ret = i2o_cfg_parms(arg, I2OPARMSET); | |
1007 | break; | |
1008 | ||
1009 | case I2OPARMGET: | |
1010 | ret = i2o_cfg_parms(arg, I2OPARMGET); | |
1011 | break; | |
1012 | ||
1013 | case I2OSWDL: | |
1014 | ret = i2o_cfg_swdl(arg); | |
1015 | break; | |
1016 | ||
1017 | case I2OSWUL: | |
1018 | ret = i2o_cfg_swul(arg); | |
1019 | break; | |
1020 | ||
1021 | case I2OSWDEL: | |
1022 | ret = i2o_cfg_swdel(arg); | |
1023 | break; | |
1024 | ||
1025 | case I2OVALIDATE: | |
1026 | ret = i2o_cfg_validate(arg); | |
1027 | break; | |
1028 | ||
1029 | case I2OEVTREG: | |
1030 | ret = i2o_cfg_evt_reg(arg, fp); | |
1031 | break; | |
1032 | ||
1033 | case I2OEVTGET: | |
1034 | ret = i2o_cfg_evt_get(arg, fp); | |
1035 | break; | |
1036 | ||
b2aaee33 | 1037 | #ifdef CONFIG_I2O_EXT_ADAPTEC |
1da177e4 LT |
1038 | case I2OPASSTHRU: |
1039 | ret = i2o_cfg_passthru(arg); | |
1040 | break; | |
b2aaee33 | 1041 | #endif |
1da177e4 LT |
1042 | |
1043 | default: | |
1044 | osm_debug("unknown ioctl called!\n"); | |
1045 | ret = -EINVAL; | |
1046 | } | |
1047 | ||
1048 | return ret; | |
1049 | } | |
1050 | ||
1051 | static int cfg_open(struct inode *inode, struct file *file) | |
1052 | { | |
1053 | struct i2o_cfg_info *tmp = | |
1054 | (struct i2o_cfg_info *)kmalloc(sizeof(struct i2o_cfg_info), | |
1055 | GFP_KERNEL); | |
1056 | unsigned long flags; | |
1057 | ||
1058 | if (!tmp) | |
1059 | return -ENOMEM; | |
1060 | ||
b78032a7 | 1061 | lock_kernel(); |
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); | |
b78032a7 | 1075 | unlock_kernel(); |
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 | |
743115ee | 1086 | lock_kernel(); |
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); | |
1093 | unlock_kernel(); | |
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 | ||
1103 | lock_kernel(); | |
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); | |
1113 | unlock_kernel(); | |
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, | |
1121 | .ioctl = i2o_cfg_ioctl, | |
f4c2c15b | 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"); |