Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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) |
Jan Engelhardt | 96de0e2 | 2007-10-19 23:21:04 +0200 | [diff] [blame] | 13 | * Auvo Häkkinen (09/10/1999): |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 14 | * Changes to i2o_cfg_reply(), ioctl_parms() |
| 15 | * Added ioct_validate() |
Jan Engelhardt | 96de0e2 | 2007-10-19 23:21:04 +0200 | [diff] [blame] | 16 | * Taneli Vähäkangas (09/30/1999): |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 17 | * Fixed ioctl_swdl() |
Jan Engelhardt | 96de0e2 | 2007-10-19 23:21:04 +0200 | [diff] [blame] | 18 | * Taneli Vähäkangas (10/04/1999): |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 19 | * Changed ioctl_swdl(), implemented ioctl_swul() and ioctl_swdel() |
| 20 | * Deepak Saxena (11/18/1999): |
| 21 | * Added event managmenet support |
Alan Cox | f1b11e5 | 2009-01-05 14:04:40 +0000 | [diff] [blame] | 22 | * Alan Cox <alan@lxorguk.ukuu.org.uk>: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 33 | #include <linux/miscdevice.h> |
Arnd Bergmann | c45d15d | 2010-06-02 14:28:52 +0200 | [diff] [blame] | 34 | #include <linux/mutex.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 35 | #include <linux/compat.h> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 36 | #include <linux/slab.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 37 | |
| 38 | #include <asm/uaccess.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 39 | |
Adrian Bunk | e62c23c | 2006-07-10 04:45:40 -0700 | [diff] [blame] | 40 | #include "core.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 41 | |
Adrian Bunk | e62c23c | 2006-07-10 04:45:40 -0700 | [diff] [blame] | 42 | #define SG_TABLESIZE 30 |
Markus Lidel | dcceafe | 2006-01-06 00:19:32 -0800 | [diff] [blame] | 43 | |
Arnd Bergmann | c45d15d | 2010-06-02 14:28:52 +0200 | [diff] [blame] | 44 | static DEFINE_MUTEX(i2o_cfg_mutex); |
Alan Cox | 5d9d6e4 | 2010-01-04 16:18:27 +0000 | [diff] [blame] | 45 | static long i2o_cfg_ioctl(struct file *, unsigned int, unsigned long); |
| f4c2c15 | 2005-04-10 22:29:42 -0500 | [diff] [blame] | 46 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
Kulikov Vasiliy | 89596f2 | 2010-08-10 18:02:04 -0700 | [diff] [blame] | 115 | if (put_user(len, kcmd.reslen)) |
| 116 | ret = -EFAULT; |
| 117 | else if (len > reslen) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 118 | ret = -ENOBUFS; |
Kulikov Vasiliy | d929dc2 | 2010-08-10 18:02:03 -0700 | [diff] [blame] | 119 | else if (copy_to_user(kcmd.resbuf, (void *)hrt, len)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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; |
Kulikov Vasiliy | 89596f2 | 2010-08-10 18:02:04 -0700 | [diff] [blame] | 151 | if (put_user(len, kcmd.reslen)) |
| 152 | ret = -EFAULT; |
| 153 | else if (len > reslen) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
Alan Cox | 261eba7 | 2012-07-30 14:41:30 -0700 | [diff] [blame] | 191 | /* |
Masanari Iida | 8fdbb34 | 2012-11-29 00:42:51 +0900 | [diff] [blame] | 192 | * Stop users being able to try and allocate arbitrary amounts |
Alan Cox | 261eba7 | 2012-07-30 14:41:30 -0700 | [diff] [blame] | 193 | * of DMA space. 64K is way more than sufficient for this. |
| 194 | */ |
| 195 | if (kcmd.oplen > 65536) |
| 196 | return -EMSGSIZE; |
| 197 | |
Julia Lawall | b81d67a | 2010-05-26 14:42:12 -0700 | [diff] [blame] | 198 | ops = memdup_user(kcmd.opbuf, kcmd.oplen); |
| 199 | if (IS_ERR(ops)) |
| 200 | return PTR_ERR(ops); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | */ |
Robert P. J. Day | 5cbded5 | 2006-12-13 00:35:56 -0800 | [diff] [blame] | 206 | res = kmalloc(65536, GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
Kulikov Vasiliy | 89596f2 | 2010-08-10 18:02:04 -0700 | [diff] [blame] | 220 | if (put_user(len, kcmd.reslen)) |
| 221 | ret = -EFAULT; |
| 222 | else if (len > reslen) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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; |
Markus Lidel | a1a5ea7 | 2006-01-06 00:19:29 -0800 | [diff] [blame] | 238 | struct i2o_message *msg; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
Markus Lidel | a1a5ea7 | 2006-01-06 00:19:29 -0800 | [diff] [blame] | 264 | msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET); |
| 265 | if (IS_ERR(msg)) |
| 266 | return PTR_ERR(msg); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 267 | |
Alan Cox | 9d793b0 | 2008-10-15 22:02:47 -0700 | [diff] [blame] | 268 | if (i2o_dma_alloc(&c->pdev->dev, &buffer, fragsize)) { |
Markus Lidel | a1a5ea7 | 2006-01-06 00:19:29 -0800 | [diff] [blame] | 269 | i2o_msg_nop(c, msg); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 270 | return -ENOMEM; |
| 271 | } |
| 272 | |
Randy Dunlap | 9d69b7d | 2006-12-06 20:38:23 -0800 | [diff] [blame] | 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 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 278 | |
Markus Lidel | a1a5ea7 | 2006-01-06 00:19:29 -0800 | [diff] [blame] | 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); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 293 | |
| 294 | osm_debug("swdl frag %d/%d (size %d)\n", curfrag, maxfrag, fragsize); |
Markus Lidel | a1a5ea7 | 2006-01-06 00:19:29 -0800 | [diff] [blame] | 295 | status = i2o_msg_post_wait_mem(c, msg, 60, &buffer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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; |
Markus Lidel | a1a5ea7 | 2006-01-06 00:19:29 -0800 | [diff] [blame] | 316 | struct i2o_message *msg; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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))) |
Dan Carpenter | b1ffdc8 | 2010-04-23 22:19:13 +0200 | [diff] [blame] | 322 | return -EFAULT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 323 | |
| 324 | if (get_user(swlen, kxfer.swlen) < 0) |
Dan Carpenter | b1ffdc8 | 2010-04-23 22:19:13 +0200 | [diff] [blame] | 325 | return -EFAULT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 326 | |
| 327 | if (get_user(maxfrag, kxfer.maxfrag) < 0) |
Dan Carpenter | b1ffdc8 | 2010-04-23 22:19:13 +0200 | [diff] [blame] | 328 | return -EFAULT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 329 | |
| 330 | if (get_user(curfrag, kxfer.curfrag) < 0) |
Dan Carpenter | b1ffdc8 | 2010-04-23 22:19:13 +0200 | [diff] [blame] | 331 | return -EFAULT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 332 | |
| 333 | if (curfrag == maxfrag) |
| 334 | fragsize = swlen - (maxfrag - 1) * 8192; |
| 335 | |
| 336 | if (!kxfer.buf) |
Dan Carpenter | b1ffdc8 | 2010-04-23 22:19:13 +0200 | [diff] [blame] | 337 | return -EFAULT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 338 | |
| 339 | c = i2o_find_iop(kxfer.iop); |
| 340 | if (!c) |
| 341 | return -ENXIO; |
| 342 | |
Markus Lidel | a1a5ea7 | 2006-01-06 00:19:29 -0800 | [diff] [blame] | 343 | msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET); |
| 344 | if (IS_ERR(msg)) |
| 345 | return PTR_ERR(msg); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 346 | |
Alan Cox | 9d793b0 | 2008-10-15 22:02:47 -0700 | [diff] [blame] | 347 | if (i2o_dma_alloc(&c->pdev->dev, &buffer, fragsize)) { |
Markus Lidel | a1a5ea7 | 2006-01-06 00:19:29 -0800 | [diff] [blame] | 348 | i2o_msg_nop(c, msg); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 349 | return -ENOMEM; |
| 350 | } |
| 351 | |
Markus Lidel | a1a5ea7 | 2006-01-06 00:19:29 -0800 | [diff] [blame] | 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); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 364 | |
| 365 | osm_debug("swul frag %d/%d (size %d)\n", curfrag, maxfrag, fragsize); |
Markus Lidel | a1a5ea7 | 2006-01-06 00:19:29 -0800 | [diff] [blame] | 366 | status = i2o_msg_post_wait_mem(c, msg, 60, &buffer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 381 | return ret; |
Dan Carpenter | b1ffdc8 | 2010-04-23 22:19:13 +0200 | [diff] [blame] | 382 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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; |
Markus Lidel | a1a5ea7 | 2006-01-06 00:19:29 -0800 | [diff] [blame] | 389 | struct i2o_message *msg; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
Markus Lidel | a1a5ea7 | 2006-01-06 00:19:29 -0800 | [diff] [blame] | 403 | msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET); |
| 404 | if (IS_ERR(msg)) |
| 405 | return PTR_ERR(msg); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 406 | |
Markus Lidel | a1a5ea7 | 2006-01-06 00:19:29 -0800 | [diff] [blame] | 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); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 416 | |
Markus Lidel | a1a5ea7 | 2006-01-06 00:19:29 -0800 | [diff] [blame] | 417 | token = i2o_msg_post_wait(c, msg, 10); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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; |
Markus Lidel | a1a5ea7 | 2006-01-06 00:19:29 -0800 | [diff] [blame] | 431 | struct i2o_message *msg; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 432 | struct i2o_controller *c; |
| 433 | |
| 434 | c = i2o_find_iop(iop); |
| 435 | if (!c) |
| 436 | return -ENXIO; |
| 437 | |
Markus Lidel | a1a5ea7 | 2006-01-06 00:19:29 -0800 | [diff] [blame] | 438 | msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET); |
| 439 | if (IS_ERR(msg)) |
| 440 | return PTR_ERR(msg); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 441 | |
Markus Lidel | a1a5ea7 | 2006-01-06 00:19:29 -0800 | [diff] [blame] | 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); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 447 | |
Markus Lidel | a1a5ea7 | 2006-01-06 00:19:29 -0800 | [diff] [blame] | 448 | token = i2o_msg_post_wait(c, msg, 10); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | { |
Markus Lidel | a1a5ea7 | 2006-01-06 00:19:29 -0800 | [diff] [blame] | 461 | struct i2o_message *msg; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
Markus Lidel | a1a5ea7 | 2006-01-06 00:19:29 -0800 | [diff] [blame] | 480 | msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET); |
| 481 | if (IS_ERR(msg)) |
| 482 | return PTR_ERR(msg); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 483 | |
Markus Lidel | a1a5ea7 | 2006-01-06 00:19:29 -0800 | [diff] [blame] | 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); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 491 | |
Markus Lidel | a1a5ea7 | 2006-01-06 00:19:29 -0800 | [diff] [blame] | 492 | i2o_msg_post(c, msg); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 |
Markus Lidel | f33213e | 2005-06-23 22:02:23 -0700 | [diff] [blame] | 525 | static int i2o_cfg_passthru32(struct file *file, unsigned cmnd, |
| 526 | unsigned long arg) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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; |
Markus Lidel | 61fbfa8 | 2005-06-23 22:02:11 -0700 | [diff] [blame] | 540 | u32 sg_index = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 541 | i2o_status_block *sb; |
| 542 | struct i2o_message *msg; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
Vasily Averin | 1725d71 | 2007-07-17 04:04:24 -0700 | [diff] [blame] | 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; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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"); |
Vasily Averin | 1725d71 | 2007-07-17 04:04:24 -0700 | [diff] [blame] | 583 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 584 | } |
| 585 | i2o_dump_message(msg); |
| 586 | |
| 587 | if (get_user(reply_size, &user_reply[0]) < 0) |
Vasily Averin | 1725d71 | 2007-07-17 04:04:24 -0700 | [diff] [blame] | 588 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 589 | |
| 590 | reply_size >>= 16; |
| 591 | reply_size <<= 2; |
| 592 | |
Vasily Averin | 1725d71 | 2007-07-17 04:04:24 -0700 | [diff] [blame] | 593 | rcode = -ENOMEM; |
Markus Lidel | f6ed39a | 2006-01-06 00:19:33 -0800 | [diff] [blame] | 594 | reply = kzalloc(reply_size, GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 595 | if (!reply) { |
| 596 | printk(KERN_WARNING "%s: Could not allocate reply buffer\n", |
| 597 | c->name); |
Vasily Averin | 1725d71 | 2007-07-17 04:04:24 -0700 | [diff] [blame] | 598 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 599 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 600 | |
| 601 | sg_offset = (msg->u.head[0] >> 4) & 0x0f; |
| 602 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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); |
Markus Lidel | 61fbfa8 | 2005-06-23 22:02:11 -0700 | [diff] [blame] | 619 | rcode = -EINVAL; |
| 620 | goto cleanup; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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; |
Markus Lidel | dcceafe | 2006-01-06 00:19:32 -0800 | [diff] [blame] | 636 | p = &(sg_list[sg_index]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 637 | /* Allocate memory for the transfer */ |
Alan Cox | 9d793b0 | 2008-10-15 22:02:47 -0700 | [diff] [blame] | 638 | if (i2o_dma_alloc(&c->pdev->dev, p, sg_size)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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; |
Markus Lidel | 61fbfa8 | 2005-06-23 22:02:11 -0700 | [diff] [blame] | 643 | goto sg_list_cleanup; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 644 | } |
Markus Lidel | dcceafe | 2006-01-06 00:19:32 -0800 | [diff] [blame] | 645 | sg_index++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 |
Markus Lidel | f33213e | 2005-06-23 22:02:23 -0700 | [diff] [blame] | 651 | (p->virt, |
| 652 | (void __user *)(unsigned long)sg[i]. |
| 653 | addr_bus, sg_size)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 654 | printk(KERN_DEBUG |
| 655 | "%s: Could not copy SG buf %d FROM user\n", |
| 656 | c->name, i); |
| 657 | rcode = -EFAULT; |
Markus Lidel | 61fbfa8 | 2005-06-23 22:02:11 -0700 | [diff] [blame] | 658 | goto sg_list_cleanup; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 659 | } |
| 660 | } |
| 661 | //TODO 64bit fix |
| 662 | sg[i].addr_bus = (u32) p->phys; |
| 663 | } |
| 664 | } |
| 665 | |
Markus Lidel | a1a5ea7 | 2006-01-06 00:19:29 -0800 | [diff] [blame] | 666 | rcode = i2o_msg_post_wait(c, msg, 60); |
Vasily Averin | 1725d71 | 2007-07-17 04:04:24 -0700 | [diff] [blame] | 667 | msg = NULL; |
Markus Lidel | dcceafe | 2006-01-06 00:19:32 -0800 | [diff] [blame] | 668 | if (rcode) { |
| 669 | reply[4] = ((u32) rcode) << 24; |
Markus Lidel | 61fbfa8 | 2005-06-23 22:02:11 -0700 | [diff] [blame] | 670 | goto sg_list_cleanup; |
Markus Lidel | dcceafe | 2006-01-06 00:19:32 -0800 | [diff] [blame] | 671 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 672 | |
| 673 | if (sg_offset) { |
Vasily Averin | 1725d71 | 2007-07-17 04:04:24 -0700 | [diff] [blame] | 674 | u32 rmsg[I2O_OUTBOUND_MSG_FRAME_SIZE]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 |
Vasily Averin | 1725d71 | 2007-07-17 04:04:24 -0700 | [diff] [blame] | 682 | memset(&rmsg, 0, I2O_OUTBOUND_MSG_FRAME_SIZE * 4); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 683 | // get user msg size in u32s |
| 684 | if (get_user(size, &user_msg[0])) { |
| 685 | rcode = -EFAULT; |
Markus Lidel | 61fbfa8 | 2005-06-23 22:02:11 -0700 | [diff] [blame] | 686 | goto sg_list_cleanup; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 687 | } |
| 688 | size = size >> 16; |
| 689 | size *= 4; |
Dan Carpenter | 9151b398 | 2013-04-30 15:27:47 -0700 | [diff] [blame] | 690 | if (size > sizeof(rmsg)) { |
| 691 | rcode = -EINVAL; |
| 692 | goto sg_list_cleanup; |
| 693 | } |
| 694 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 695 | /* Copy in the user's I2O command */ |
Vasily Averin | 1725d71 | 2007-07-17 04:04:24 -0700 | [diff] [blame] | 696 | if (copy_from_user(rmsg, user_msg, size)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 697 | rcode = -EFAULT; |
Markus Lidel | 61fbfa8 | 2005-06-23 22:02:11 -0700 | [diff] [blame] | 698 | goto sg_list_cleanup; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 699 | } |
| 700 | sg_count = |
| 701 | (size - sg_offset * 4) / sizeof(struct sg_simple_element); |
| 702 | |
| 703 | // TODO 64bit fix |
Vasily Averin | 1725d71 | 2007-07-17 04:04:24 -0700 | [diff] [blame] | 704 | sg = (struct sg_simple_element *)(rmsg + sg_offset); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 705 | for (j = 0; j < sg_count; j++) { |
| 706 | /* Copy out the SG list to user's buffer if necessary */ |
| 707 | if (! |
| 708 | (sg[j]. |
| 709 | flag_count & 0x4000000 /*I2O_SGL_FLAGS_DIR */ )) { |
| 710 | sg_size = sg[j].flag_count & 0xffffff; |
| 711 | // TODO 64bit fix |
| 712 | if (copy_to_user |
| 713 | ((void __user *)(u64) sg[j].addr_bus, |
| 714 | sg_list[j].virt, sg_size)) { |
| 715 | printk(KERN_WARNING |
| 716 | "%s: Could not copy %p TO user %x\n", |
| 717 | c->name, sg_list[j].virt, |
| 718 | sg[j].addr_bus); |
| 719 | rcode = -EFAULT; |
Markus Lidel | 61fbfa8 | 2005-06-23 22:02:11 -0700 | [diff] [blame] | 720 | goto sg_list_cleanup; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 721 | } |
| 722 | } |
| 723 | } |
| 724 | } |
| 725 | |
Vasily Averin | 1725d71 | 2007-07-17 04:04:24 -0700 | [diff] [blame] | 726 | sg_list_cleanup: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 727 | /* Copy back the reply to user space */ |
| 728 | if (reply_size) { |
| 729 | // we wrote our own values for context - now restore the user supplied ones |
| 730 | if (copy_from_user(reply + 2, user_msg + 2, sizeof(u32) * 2)) { |
| 731 | printk(KERN_WARNING |
| 732 | "%s: Could not copy message context FROM user\n", |
| 733 | c->name); |
| 734 | rcode = -EFAULT; |
| 735 | } |
| 736 | if (copy_to_user(user_reply, reply, reply_size)) { |
| 737 | printk(KERN_WARNING |
| 738 | "%s: Could not copy reply TO user\n", c->name); |
| 739 | rcode = -EFAULT; |
| 740 | } |
| 741 | } |
Markus Lidel | 61fbfa8 | 2005-06-23 22:02:11 -0700 | [diff] [blame] | 742 | for (i = 0; i < sg_index; i++) |
| 743 | i2o_dma_free(&c->pdev->dev, &sg_list[i]); |
| 744 | |
Vasily Averin | 1725d71 | 2007-07-17 04:04:24 -0700 | [diff] [blame] | 745 | cleanup: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 746 | kfree(reply); |
Vasily Averin | 1725d71 | 2007-07-17 04:04:24 -0700 | [diff] [blame] | 747 | out: |
| 748 | if (msg) |
| 749 | i2o_msg_nop(c, msg); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 750 | return rcode; |
| 751 | } |
| 752 | |
Markus Lidel | f33213e | 2005-06-23 22:02:23 -0700 | [diff] [blame] | 753 | static long i2o_cfg_compat_ioctl(struct file *file, unsigned cmd, |
| 754 | unsigned long arg) |
| f4c2c15 | 2005-04-10 22:29:42 -0500 | [diff] [blame] | 755 | { |
| 756 | int ret; |
Arnd Bergmann | c45d15d | 2010-06-02 14:28:52 +0200 | [diff] [blame] | 757 | mutex_lock(&i2o_cfg_mutex); |
Markus Lidel | f33213e | 2005-06-23 22:02:23 -0700 | [diff] [blame] | 758 | switch (cmd) { |
| f4c2c15 | 2005-04-10 22:29:42 -0500 | [diff] [blame] | 759 | case I2OGETIOPS: |
Alan Cox | 5d9d6e4 | 2010-01-04 16:18:27 +0000 | [diff] [blame] | 760 | ret = i2o_cfg_ioctl(file, cmd, arg); |
| f4c2c15 | 2005-04-10 22:29:42 -0500 | [diff] [blame] | 761 | break; |
| 762 | case I2OPASSTHRU32: |
| 763 | ret = i2o_cfg_passthru32(file, cmd, arg); |
| 764 | break; |
| 765 | default: |
| 766 | ret = -ENOIOCTLCMD; |
| 767 | break; |
| 768 | } |
Arnd Bergmann | c45d15d | 2010-06-02 14:28:52 +0200 | [diff] [blame] | 769 | mutex_unlock(&i2o_cfg_mutex); |
| f4c2c15 | 2005-04-10 22:29:42 -0500 | [diff] [blame] | 770 | return ret; |
| 771 | } |
| 772 | |
| 773 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 774 | |
Randy Dunlap | f13a603 | 2006-12-06 20:38:24 -0800 | [diff] [blame] | 775 | #ifdef CONFIG_I2O_EXT_ADAPTEC |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 776 | static int i2o_cfg_passthru(unsigned long arg) |
| 777 | { |
| 778 | struct i2o_cmd_passthru __user *cmd = |
| 779 | (struct i2o_cmd_passthru __user *)arg; |
| 780 | struct i2o_controller *c; |
| 781 | u32 __user *user_msg; |
| 782 | u32 *reply = NULL; |
| 783 | u32 __user *user_reply = NULL; |
| 784 | u32 size = 0; |
| 785 | u32 reply_size = 0; |
| 786 | u32 rcode = 0; |
Alan Cox | 9d793b0 | 2008-10-15 22:02:47 -0700 | [diff] [blame] | 787 | struct i2o_dma sg_list[SG_TABLESIZE]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 788 | u32 sg_offset = 0; |
| 789 | u32 sg_count = 0; |
| 790 | int sg_index = 0; |
| 791 | u32 i = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 792 | i2o_status_block *sb; |
Markus Lidel | a1a5ea7 | 2006-01-06 00:19:29 -0800 | [diff] [blame] | 793 | struct i2o_message *msg; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 794 | unsigned int iop; |
| 795 | |
| 796 | if (get_user(iop, &cmd->iop) || get_user(user_msg, &cmd->msg)) |
| 797 | return -EFAULT; |
| 798 | |
| 799 | c = i2o_find_iop(iop); |
| 800 | if (!c) { |
| 801 | osm_warn("controller %d not found\n", iop); |
| 802 | return -ENXIO; |
| 803 | } |
| 804 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 805 | sb = c->status_block.virt; |
| 806 | |
| 807 | if (get_user(size, &user_msg[0])) |
| 808 | return -EFAULT; |
| 809 | size = size >> 16; |
| 810 | |
| 811 | if (size > sb->inbound_frame_size) { |
| 812 | osm_warn("size of message > inbound_frame_size"); |
| 813 | return -EFAULT; |
| 814 | } |
| 815 | |
| 816 | user_reply = &user_msg[size]; |
| 817 | |
| 818 | size <<= 2; // Convert to bytes |
| 819 | |
Vasily Averin | 1725d71 | 2007-07-17 04:04:24 -0700 | [diff] [blame] | 820 | msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET); |
| 821 | if (IS_ERR(msg)) |
| 822 | return PTR_ERR(msg); |
| 823 | |
| 824 | rcode = -EFAULT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 825 | /* Copy in the user's I2O command */ |
| 826 | if (copy_from_user(msg, user_msg, size)) |
Vasily Averin | 1725d71 | 2007-07-17 04:04:24 -0700 | [diff] [blame] | 827 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 828 | |
| 829 | if (get_user(reply_size, &user_reply[0]) < 0) |
Vasily Averin | 1725d71 | 2007-07-17 04:04:24 -0700 | [diff] [blame] | 830 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 831 | |
| 832 | reply_size >>= 16; |
| 833 | reply_size <<= 2; |
| 834 | |
Markus Lidel | f6ed39a | 2006-01-06 00:19:33 -0800 | [diff] [blame] | 835 | reply = kzalloc(reply_size, GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 836 | if (!reply) { |
| 837 | printk(KERN_WARNING "%s: Could not allocate reply buffer\n", |
| 838 | c->name); |
Vasily Averin | 1725d71 | 2007-07-17 04:04:24 -0700 | [diff] [blame] | 839 | rcode = -ENOMEM; |
| 840 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 841 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 842 | |
| 843 | sg_offset = (msg->u.head[0] >> 4) & 0x0f; |
| 844 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 845 | memset(sg_list, 0, sizeof(sg_list[0]) * SG_TABLESIZE); |
| 846 | if (sg_offset) { |
| 847 | struct sg_simple_element *sg; |
Alan Cox | 9d793b0 | 2008-10-15 22:02:47 -0700 | [diff] [blame] | 848 | struct i2o_dma *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 849 | |
| 850 | if (sg_offset * 4 >= size) { |
| 851 | rcode = -EFAULT; |
| 852 | goto cleanup; |
| 853 | } |
| 854 | // TODO 64bit fix |
| 855 | sg = (struct sg_simple_element *)((&msg->u.head[0]) + |
| 856 | sg_offset); |
| 857 | sg_count = |
| 858 | (size - sg_offset * 4) / sizeof(struct sg_simple_element); |
| 859 | if (sg_count > SG_TABLESIZE) { |
| 860 | printk(KERN_DEBUG "%s:IOCTL SG List too large (%u)\n", |
| 861 | c->name, sg_count); |
Markus Lidel | 61fbfa8 | 2005-06-23 22:02:11 -0700 | [diff] [blame] | 862 | rcode = -EINVAL; |
| 863 | goto cleanup; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 864 | } |
| 865 | |
| 866 | for (i = 0; i < sg_count; i++) { |
| 867 | int sg_size; |
| 868 | |
| 869 | if (!(sg[i].flag_count & 0x10000000 |
| 870 | /*I2O_SGL_FLAGS_SIMPLE_ADDRESS_ELEMENT */ )) { |
| 871 | printk(KERN_DEBUG |
| 872 | "%s:Bad SG element %d - not simple (%x)\n", |
| 873 | c->name, i, sg[i].flag_count); |
| 874 | rcode = -EINVAL; |
Markus Lidel | 61fbfa8 | 2005-06-23 22:02:11 -0700 | [diff] [blame] | 875 | goto sg_list_cleanup; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 876 | } |
| 877 | sg_size = sg[i].flag_count & 0xffffff; |
Alan Cox | 9d793b0 | 2008-10-15 22:02:47 -0700 | [diff] [blame] | 878 | p = &(sg_list[sg_index]); |
| 879 | if (i2o_dma_alloc(&c->pdev->dev, p, sg_size)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 880 | /* Allocate memory for the transfer */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 881 | printk(KERN_DEBUG |
| 882 | "%s: Could not allocate SG buffer - size = %d buffer number %d of %d\n", |
| 883 | c->name, sg_size, i, sg_count); |
| 884 | rcode = -ENOMEM; |
Markus Lidel | 61fbfa8 | 2005-06-23 22:02:11 -0700 | [diff] [blame] | 885 | goto sg_list_cleanup; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 886 | } |
Alan Cox | 9d793b0 | 2008-10-15 22:02:47 -0700 | [diff] [blame] | 887 | sg_index++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 888 | /* Copy in the user's SG buffer if necessary */ |
| 889 | if (sg[i]. |
| 890 | flag_count & 0x04000000 /*I2O_SGL_FLAGS_DIR */ ) { |
| 891 | // TODO 64bit fix |
| 892 | if (copy_from_user |
Alan Cox | 9d793b0 | 2008-10-15 22:02:47 -0700 | [diff] [blame] | 893 | (p->virt, (void __user *)sg[i].addr_bus, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 894 | sg_size)) { |
| 895 | printk(KERN_DEBUG |
| 896 | "%s: Could not copy SG buf %d FROM user\n", |
| 897 | c->name, i); |
| 898 | rcode = -EFAULT; |
Markus Lidel | 61fbfa8 | 2005-06-23 22:02:11 -0700 | [diff] [blame] | 899 | goto sg_list_cleanup; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 900 | } |
| 901 | } |
Alan Cox | 9d793b0 | 2008-10-15 22:02:47 -0700 | [diff] [blame] | 902 | sg[i].addr_bus = p->phys; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 903 | } |
| 904 | } |
| 905 | |
Markus Lidel | a1a5ea7 | 2006-01-06 00:19:29 -0800 | [diff] [blame] | 906 | rcode = i2o_msg_post_wait(c, msg, 60); |
Vasily Averin | 1725d71 | 2007-07-17 04:04:24 -0700 | [diff] [blame] | 907 | msg = NULL; |
Markus Lidel | dcceafe | 2006-01-06 00:19:32 -0800 | [diff] [blame] | 908 | if (rcode) { |
| 909 | reply[4] = ((u32) rcode) << 24; |
Markus Lidel | 61fbfa8 | 2005-06-23 22:02:11 -0700 | [diff] [blame] | 910 | goto sg_list_cleanup; |
Markus Lidel | dcceafe | 2006-01-06 00:19:32 -0800 | [diff] [blame] | 911 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 912 | |
| 913 | if (sg_offset) { |
Alan Cox | 9d793b0 | 2008-10-15 22:02:47 -0700 | [diff] [blame] | 914 | u32 rmsg[I2O_OUTBOUND_MSG_FRAME_SIZE]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 915 | /* Copy back the Scatter Gather buffers back to user space */ |
| 916 | u32 j; |
| 917 | // TODO 64bit fix |
| 918 | struct sg_simple_element *sg; |
| 919 | int sg_size; |
| 920 | |
| 921 | // re-acquire the original message to handle correctly the sg copy operation |
Vasily Averin | 1725d71 | 2007-07-17 04:04:24 -0700 | [diff] [blame] | 922 | memset(&rmsg, 0, I2O_OUTBOUND_MSG_FRAME_SIZE * 4); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 923 | // get user msg size in u32s |
| 924 | if (get_user(size, &user_msg[0])) { |
| 925 | rcode = -EFAULT; |
Markus Lidel | 61fbfa8 | 2005-06-23 22:02:11 -0700 | [diff] [blame] | 926 | goto sg_list_cleanup; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 927 | } |
| 928 | size = size >> 16; |
| 929 | size *= 4; |
Dan Carpenter | 9151b398 | 2013-04-30 15:27:47 -0700 | [diff] [blame] | 930 | if (size > sizeof(rmsg)) { |
| 931 | rcode = -EFAULT; |
| 932 | goto sg_list_cleanup; |
| 933 | } |
| 934 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 935 | /* Copy in the user's I2O command */ |
Vasily Averin | 1725d71 | 2007-07-17 04:04:24 -0700 | [diff] [blame] | 936 | if (copy_from_user(rmsg, user_msg, size)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 937 | rcode = -EFAULT; |
Markus Lidel | 61fbfa8 | 2005-06-23 22:02:11 -0700 | [diff] [blame] | 938 | goto sg_list_cleanup; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 939 | } |
| 940 | sg_count = |
| 941 | (size - sg_offset * 4) / sizeof(struct sg_simple_element); |
| 942 | |
| 943 | // TODO 64bit fix |
Vasily Averin | 1725d71 | 2007-07-17 04:04:24 -0700 | [diff] [blame] | 944 | sg = (struct sg_simple_element *)(rmsg + sg_offset); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 945 | for (j = 0; j < sg_count; j++) { |
| 946 | /* Copy out the SG list to user's buffer if necessary */ |
| 947 | if (! |
| 948 | (sg[j]. |
| 949 | flag_count & 0x4000000 /*I2O_SGL_FLAGS_DIR */ )) { |
| 950 | sg_size = sg[j].flag_count & 0xffffff; |
| 951 | // TODO 64bit fix |
| 952 | if (copy_to_user |
Alan Cox | 9d793b0 | 2008-10-15 22:02:47 -0700 | [diff] [blame] | 953 | ((void __user *)sg[j].addr_bus, sg_list[j].virt, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 954 | sg_size)) { |
| 955 | printk(KERN_WARNING |
| 956 | "%s: Could not copy %p TO user %x\n", |
Alan Cox | 9d793b0 | 2008-10-15 22:02:47 -0700 | [diff] [blame] | 957 | c->name, sg_list[j].virt, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 958 | sg[j].addr_bus); |
| 959 | rcode = -EFAULT; |
Markus Lidel | 61fbfa8 | 2005-06-23 22:02:11 -0700 | [diff] [blame] | 960 | goto sg_list_cleanup; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 961 | } |
| 962 | } |
| 963 | } |
| 964 | } |
| 965 | |
Vasily Averin | 1725d71 | 2007-07-17 04:04:24 -0700 | [diff] [blame] | 966 | sg_list_cleanup: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 967 | /* Copy back the reply to user space */ |
| 968 | if (reply_size) { |
| 969 | // we wrote our own values for context - now restore the user supplied ones |
| 970 | if (copy_from_user(reply + 2, user_msg + 2, sizeof(u32) * 2)) { |
| 971 | printk(KERN_WARNING |
| 972 | "%s: Could not copy message context FROM user\n", |
| 973 | c->name); |
| 974 | rcode = -EFAULT; |
| 975 | } |
| 976 | if (copy_to_user(user_reply, reply, reply_size)) { |
| 977 | printk(KERN_WARNING |
| 978 | "%s: Could not copy reply TO user\n", c->name); |
| 979 | rcode = -EFAULT; |
| 980 | } |
| 981 | } |
| 982 | |
Markus Lidel | 61fbfa8 | 2005-06-23 22:02:11 -0700 | [diff] [blame] | 983 | for (i = 0; i < sg_index; i++) |
Alan Cox | 9d793b0 | 2008-10-15 22:02:47 -0700 | [diff] [blame] | 984 | i2o_dma_free(&c->pdev->dev, &sg_list[i]); |
Markus Lidel | 61fbfa8 | 2005-06-23 22:02:11 -0700 | [diff] [blame] | 985 | |
Vasily Averin | 1725d71 | 2007-07-17 04:04:24 -0700 | [diff] [blame] | 986 | cleanup: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 987 | kfree(reply); |
Vasily Averin | 1725d71 | 2007-07-17 04:04:24 -0700 | [diff] [blame] | 988 | out: |
| 989 | if (msg) |
| 990 | i2o_msg_nop(c, msg); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 991 | return rcode; |
| 992 | } |
Markus Lidel | b2aaee3 | 2005-06-23 22:02:19 -0700 | [diff] [blame] | 993 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 994 | |
| 995 | /* |
| 996 | * IOCTL Handler |
| 997 | */ |
Alan Cox | 5d9d6e4 | 2010-01-04 16:18:27 +0000 | [diff] [blame] | 998 | static long i2o_cfg_ioctl(struct file *fp, unsigned int cmd, unsigned long arg) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 999 | { |
| 1000 | int ret; |
| 1001 | |
Arnd Bergmann | c45d15d | 2010-06-02 14:28:52 +0200 | [diff] [blame] | 1002 | mutex_lock(&i2o_cfg_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1003 | switch (cmd) { |
| 1004 | case I2OGETIOPS: |
| 1005 | ret = i2o_cfg_getiops(arg); |
| 1006 | break; |
| 1007 | |
| 1008 | case I2OHRTGET: |
| 1009 | ret = i2o_cfg_gethrt(arg); |
| 1010 | break; |
| 1011 | |
| 1012 | case I2OLCTGET: |
| 1013 | ret = i2o_cfg_getlct(arg); |
| 1014 | break; |
| 1015 | |
| 1016 | case I2OPARMSET: |
| 1017 | ret = i2o_cfg_parms(arg, I2OPARMSET); |
| 1018 | break; |
| 1019 | |
| 1020 | case I2OPARMGET: |
| 1021 | ret = i2o_cfg_parms(arg, I2OPARMGET); |
| 1022 | break; |
| 1023 | |
| 1024 | case I2OSWDL: |
| 1025 | ret = i2o_cfg_swdl(arg); |
| 1026 | break; |
| 1027 | |
| 1028 | case I2OSWUL: |
| 1029 | ret = i2o_cfg_swul(arg); |
| 1030 | break; |
| 1031 | |
| 1032 | case I2OSWDEL: |
| 1033 | ret = i2o_cfg_swdel(arg); |
| 1034 | break; |
| 1035 | |
| 1036 | case I2OVALIDATE: |
| 1037 | ret = i2o_cfg_validate(arg); |
| 1038 | break; |
| 1039 | |
| 1040 | case I2OEVTREG: |
| 1041 | ret = i2o_cfg_evt_reg(arg, fp); |
| 1042 | break; |
| 1043 | |
| 1044 | case I2OEVTGET: |
| 1045 | ret = i2o_cfg_evt_get(arg, fp); |
| 1046 | break; |
| 1047 | |
Markus Lidel | b2aaee3 | 2005-06-23 22:02:19 -0700 | [diff] [blame] | 1048 | #ifdef CONFIG_I2O_EXT_ADAPTEC |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1049 | case I2OPASSTHRU: |
| 1050 | ret = i2o_cfg_passthru(arg); |
| 1051 | break; |
Markus Lidel | b2aaee3 | 2005-06-23 22:02:19 -0700 | [diff] [blame] | 1052 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1053 | |
| 1054 | default: |
| 1055 | osm_debug("unknown ioctl called!\n"); |
| 1056 | ret = -EINVAL; |
| 1057 | } |
Arnd Bergmann | c45d15d | 2010-06-02 14:28:52 +0200 | [diff] [blame] | 1058 | mutex_unlock(&i2o_cfg_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1059 | return ret; |
| 1060 | } |
| 1061 | |
| 1062 | static int cfg_open(struct inode *inode, struct file *file) |
| 1063 | { |
Jesper Juhl | 1dcb202 | 2010-11-09 00:08:50 +0100 | [diff] [blame] | 1064 | struct i2o_cfg_info *tmp = kmalloc(sizeof(struct i2o_cfg_info), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1065 | GFP_KERNEL); |
| 1066 | unsigned long flags; |
| 1067 | |
| 1068 | if (!tmp) |
| 1069 | return -ENOMEM; |
| 1070 | |
Arnd Bergmann | c45d15d | 2010-06-02 14:28:52 +0200 | [diff] [blame] | 1071 | mutex_lock(&i2o_cfg_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1072 | file->private_data = (void *)(i2o_cfg_info_id++); |
| 1073 | tmp->fp = file; |
| 1074 | tmp->fasync = NULL; |
| 1075 | tmp->q_id = (ulong) file->private_data; |
| 1076 | tmp->q_len = 0; |
| 1077 | tmp->q_in = 0; |
| 1078 | tmp->q_out = 0; |
| 1079 | tmp->q_lost = 0; |
| 1080 | tmp->next = open_files; |
| 1081 | |
| 1082 | spin_lock_irqsave(&i2o_config_lock, flags); |
| 1083 | open_files = tmp; |
| 1084 | spin_unlock_irqrestore(&i2o_config_lock, flags); |
Arnd Bergmann | c45d15d | 2010-06-02 14:28:52 +0200 | [diff] [blame] | 1085 | mutex_unlock(&i2o_cfg_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1086 | |
| 1087 | return 0; |
| 1088 | } |
| 1089 | |
| 1090 | static int cfg_fasync(int fd, struct file *fp, int on) |
| 1091 | { |
| 1092 | ulong id = (ulong) fp->private_data; |
| 1093 | struct i2o_cfg_info *p; |
Jonathan Corbet | 743115e | 2008-06-19 15:44:57 -0600 | [diff] [blame] | 1094 | int ret = -EBADF; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1095 | |
Arnd Bergmann | c45d15d | 2010-06-02 14:28:52 +0200 | [diff] [blame] | 1096 | mutex_lock(&i2o_cfg_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1097 | for (p = open_files; p; p = p->next) |
| 1098 | if (p->q_id == id) |
| 1099 | break; |
| 1100 | |
Jonathan Corbet | 743115e | 2008-06-19 15:44:57 -0600 | [diff] [blame] | 1101 | if (p) |
| 1102 | ret = fasync_helper(fd, fp, on, &p->fasync); |
Arnd Bergmann | c45d15d | 2010-06-02 14:28:52 +0200 | [diff] [blame] | 1103 | mutex_unlock(&i2o_cfg_mutex); |
Jonathan Corbet | 743115e | 2008-06-19 15:44:57 -0600 | [diff] [blame] | 1104 | return ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1105 | } |
| 1106 | |
| 1107 | static int cfg_release(struct inode *inode, struct file *file) |
| 1108 | { |
| 1109 | ulong id = (ulong) file->private_data; |
Al Viro | 233e70f | 2008-10-31 23:28:30 +0000 | [diff] [blame] | 1110 | struct i2o_cfg_info *p, **q; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1111 | unsigned long flags; |
| 1112 | |
Arnd Bergmann | c45d15d | 2010-06-02 14:28:52 +0200 | [diff] [blame] | 1113 | mutex_lock(&i2o_cfg_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1114 | spin_lock_irqsave(&i2o_config_lock, flags); |
Al Viro | 233e70f | 2008-10-31 23:28:30 +0000 | [diff] [blame] | 1115 | for (q = &open_files; (p = *q) != NULL; q = &p->next) { |
| 1116 | if (p->q_id == id) { |
| 1117 | *q = p->next; |
| 1118 | kfree(p); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1119 | break; |
| 1120 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1121 | } |
| 1122 | spin_unlock_irqrestore(&i2o_config_lock, flags); |
Arnd Bergmann | c45d15d | 2010-06-02 14:28:52 +0200 | [diff] [blame] | 1123 | mutex_unlock(&i2o_cfg_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1124 | |
| 1125 | return 0; |
| 1126 | } |
| 1127 | |
Arjan van de Ven | d54b1fd | 2007-02-12 00:55:34 -0800 | [diff] [blame] | 1128 | static const struct file_operations config_fops = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1129 | .owner = THIS_MODULE, |
| 1130 | .llseek = no_llseek, |
Alan Cox | 5d9d6e4 | 2010-01-04 16:18:27 +0000 | [diff] [blame] | 1131 | .unlocked_ioctl = i2o_cfg_ioctl, |
| f4c2c15 | 2005-04-10 22:29:42 -0500 | [diff] [blame] | 1132 | #ifdef CONFIG_COMPAT |
| 1133 | .compat_ioctl = i2o_cfg_compat_ioctl, |
| 1134 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1135 | .open = cfg_open, |
| 1136 | .release = cfg_release, |
| 1137 | .fasync = cfg_fasync, |
| 1138 | }; |
| 1139 | |
| 1140 | static struct miscdevice i2o_miscdev = { |
| 1141 | I2O_MINOR, |
| 1142 | "i2octl", |
| 1143 | &config_fops |
| 1144 | }; |
| 1145 | |
Markus Lidel | f10378f | 2005-06-23 22:02:16 -0700 | [diff] [blame] | 1146 | static int __init i2o_config_old_init(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1147 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1148 | spin_lock_init(&i2o_config_lock); |
| 1149 | |
| 1150 | if (misc_register(&i2o_miscdev) < 0) { |
| 1151 | osm_err("can't register device.\n"); |
| 1152 | return -EBUSY; |
| 1153 | } |
Markus Lidel | f33213e | 2005-06-23 22:02:23 -0700 | [diff] [blame] | 1154 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1155 | return 0; |
| 1156 | } |
| 1157 | |
Markus Lidel | f10378f | 2005-06-23 22:02:16 -0700 | [diff] [blame] | 1158 | static void i2o_config_old_exit(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1159 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1160 | misc_deregister(&i2o_miscdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1161 | } |
| 1162 | |
| 1163 | MODULE_AUTHOR("Red Hat Software"); |