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) |
| 13 | * Auvo Häkkinen (09/10/1999): |
| 14 | * Changes to i2o_cfg_reply(), ioctl_parms() |
| 15 | * Added ioct_validate() |
| 16 | * Taneli Vähäkangas (09/30/1999): |
| 17 | * Fixed ioctl_swdl() |
| 18 | * Taneli Vähäkangas (10/04/1999): |
| 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 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 33 | #include <linux/miscdevice.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 34 | #include <linux/smp_lock.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 35 | #include <linux/compat.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 36 | |
| 37 | #include <asm/uaccess.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 38 | |
Andrew Morton | f52bdbe | 2005-06-23 22:02:26 -0700 | [diff] [blame] | 39 | #define SG_TABLESIZE 30 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 40 | |
Markus Lidel | dcceafe | 2006-01-06 00:19:32 -0800 | [diff] [blame] | 41 | extern int i2o_parm_issue(struct i2o_device *, int, void *, int, void *, int); |
| 42 | |
| 43 | static int i2o_cfg_ioctl(struct inode *, struct file *, unsigned int, |
| 44 | unsigned long); |
| f4c2c15 | 2005-04-10 22:29:42 -0500 | [diff] [blame] | 45 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
| 189 | ops = (u8 *) kmalloc(kcmd.oplen, GFP_KERNEL); |
| 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 | */ |
| 202 | res = (u8 *) kmalloc(65536, GFP_KERNEL); |
| 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; |
Markus Lidel | a1a5ea7 | 2006-01-06 00:19:29 -0800 | [diff] [blame] | 233 | struct i2o_message *msg; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
Markus Lidel | a1a5ea7 | 2006-01-06 00:19:29 -0800 | [diff] [blame] | 259 | msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET); |
| 260 | if (IS_ERR(msg)) |
| 261 | return PTR_ERR(msg); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 262 | |
| 263 | if (i2o_dma_alloc(&c->pdev->dev, &buffer, fragsize, GFP_KERNEL)) { |
Markus Lidel | a1a5ea7 | 2006-01-06 00:19:29 -0800 | [diff] [blame] | 264 | i2o_msg_nop(c, msg); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 265 | return -ENOMEM; |
| 266 | } |
| 267 | |
| 268 | __copy_from_user(buffer.virt, kxfer.buf, fragsize); |
| 269 | |
Markus Lidel | a1a5ea7 | 2006-01-06 00:19:29 -0800 | [diff] [blame] | 270 | msg->u.head[0] = cpu_to_le32(NINE_WORD_MSG_SIZE | SGL_OFFSET_7); |
| 271 | msg->u.head[1] = |
| 272 | cpu_to_le32(I2O_CMD_SW_DOWNLOAD << 24 | HOST_TID << 12 | |
| 273 | ADAPTER_TID); |
| 274 | msg->u.head[2] = cpu_to_le32(i2o_config_driver.context); |
| 275 | msg->u.head[3] = cpu_to_le32(0); |
| 276 | msg->body[0] = |
| 277 | cpu_to_le32((((u32) kxfer.flags) << 24) | (((u32) kxfer. |
| 278 | sw_type) << 16) | |
| 279 | (((u32) maxfrag) << 8) | (((u32) curfrag))); |
| 280 | msg->body[1] = cpu_to_le32(swlen); |
| 281 | msg->body[2] = cpu_to_le32(kxfer.sw_id); |
| 282 | msg->body[3] = cpu_to_le32(0xD0000000 | fragsize); |
| 283 | msg->body[4] = cpu_to_le32(buffer.phys); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 284 | |
| 285 | osm_debug("swdl frag %d/%d (size %d)\n", curfrag, maxfrag, fragsize); |
Markus Lidel | a1a5ea7 | 2006-01-06 00:19:29 -0800 | [diff] [blame] | 286 | status = i2o_msg_post_wait_mem(c, msg, 60, &buffer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 287 | |
| 288 | if (status != -ETIMEDOUT) |
| 289 | i2o_dma_free(&c->pdev->dev, &buffer); |
| 290 | |
| 291 | if (status != I2O_POST_WAIT_OK) { |
| 292 | // it fails if you try and send frags out of order |
| 293 | // and for some yet unknown reasons too |
| 294 | osm_info("swdl failed, DetailedStatus = %d\n", status); |
| 295 | return status; |
| 296 | } |
| 297 | |
| 298 | return 0; |
| 299 | }; |
| 300 | |
| 301 | static int i2o_cfg_swul(unsigned long arg) |
| 302 | { |
| 303 | struct i2o_sw_xfer kxfer; |
| 304 | struct i2o_sw_xfer __user *pxfer = (struct i2o_sw_xfer __user *)arg; |
| 305 | unsigned char maxfrag = 0, curfrag = 1; |
| 306 | struct i2o_dma buffer; |
Markus Lidel | a1a5ea7 | 2006-01-06 00:19:29 -0800 | [diff] [blame] | 307 | struct i2o_message *msg; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 308 | unsigned int status = 0, swlen = 0, fragsize = 8192; |
| 309 | struct i2o_controller *c; |
| 310 | int ret = 0; |
| 311 | |
| 312 | if (copy_from_user(&kxfer, pxfer, sizeof(struct i2o_sw_xfer))) |
| 313 | goto return_fault; |
| 314 | |
| 315 | if (get_user(swlen, kxfer.swlen) < 0) |
| 316 | goto return_fault; |
| 317 | |
| 318 | if (get_user(maxfrag, kxfer.maxfrag) < 0) |
| 319 | goto return_fault; |
| 320 | |
| 321 | if (get_user(curfrag, kxfer.curfrag) < 0) |
| 322 | goto return_fault; |
| 323 | |
| 324 | if (curfrag == maxfrag) |
| 325 | fragsize = swlen - (maxfrag - 1) * 8192; |
| 326 | |
| 327 | if (!kxfer.buf) |
| 328 | goto return_fault; |
| 329 | |
| 330 | c = i2o_find_iop(kxfer.iop); |
| 331 | if (!c) |
| 332 | return -ENXIO; |
| 333 | |
Markus Lidel | a1a5ea7 | 2006-01-06 00:19:29 -0800 | [diff] [blame] | 334 | msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET); |
| 335 | if (IS_ERR(msg)) |
| 336 | return PTR_ERR(msg); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 337 | |
| 338 | if (i2o_dma_alloc(&c->pdev->dev, &buffer, fragsize, GFP_KERNEL)) { |
Markus Lidel | a1a5ea7 | 2006-01-06 00:19:29 -0800 | [diff] [blame] | 339 | i2o_msg_nop(c, msg); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 340 | return -ENOMEM; |
| 341 | } |
| 342 | |
Markus Lidel | a1a5ea7 | 2006-01-06 00:19:29 -0800 | [diff] [blame] | 343 | msg->u.head[0] = cpu_to_le32(NINE_WORD_MSG_SIZE | SGL_OFFSET_7); |
| 344 | msg->u.head[1] = |
| 345 | cpu_to_le32(I2O_CMD_SW_UPLOAD << 24 | HOST_TID << 12 | ADAPTER_TID); |
| 346 | msg->u.head[2] = cpu_to_le32(i2o_config_driver.context); |
| 347 | msg->u.head[3] = cpu_to_le32(0); |
| 348 | msg->body[0] = |
| 349 | cpu_to_le32((u32) kxfer.flags << 24 | (u32) kxfer. |
| 350 | sw_type << 16 | (u32) maxfrag << 8 | (u32) curfrag); |
| 351 | msg->body[1] = cpu_to_le32(swlen); |
| 352 | msg->body[2] = cpu_to_le32(kxfer.sw_id); |
| 353 | msg->body[3] = cpu_to_le32(0xD0000000 | fragsize); |
| 354 | msg->body[4] = cpu_to_le32(buffer.phys); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 355 | |
| 356 | osm_debug("swul frag %d/%d (size %d)\n", curfrag, maxfrag, fragsize); |
Markus Lidel | a1a5ea7 | 2006-01-06 00:19:29 -0800 | [diff] [blame] | 357 | status = i2o_msg_post_wait_mem(c, msg, 60, &buffer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 358 | |
| 359 | if (status != I2O_POST_WAIT_OK) { |
| 360 | if (status != -ETIMEDOUT) |
| 361 | i2o_dma_free(&c->pdev->dev, &buffer); |
| 362 | |
| 363 | osm_info("swul failed, DetailedStatus = %d\n", status); |
| 364 | return status; |
| 365 | } |
| 366 | |
| 367 | if (copy_to_user(kxfer.buf, buffer.virt, fragsize)) |
| 368 | ret = -EFAULT; |
| 369 | |
| 370 | i2o_dma_free(&c->pdev->dev, &buffer); |
| 371 | |
Markus Lidel | f33213e | 2005-06-23 22:02:23 -0700 | [diff] [blame] | 372 | return_ret: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 373 | return ret; |
Markus Lidel | f33213e | 2005-06-23 22:02:23 -0700 | [diff] [blame] | 374 | return_fault: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 375 | ret = -EFAULT; |
| 376 | goto return_ret; |
| 377 | }; |
| 378 | |
| 379 | static int i2o_cfg_swdel(unsigned long arg) |
| 380 | { |
| 381 | struct i2o_controller *c; |
| 382 | struct i2o_sw_xfer kxfer; |
| 383 | struct i2o_sw_xfer __user *pxfer = (struct i2o_sw_xfer __user *)arg; |
Markus Lidel | a1a5ea7 | 2006-01-06 00:19:29 -0800 | [diff] [blame] | 384 | struct i2o_message *msg; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 385 | unsigned int swlen; |
| 386 | int token; |
| 387 | |
| 388 | if (copy_from_user(&kxfer, pxfer, sizeof(struct i2o_sw_xfer))) |
| 389 | return -EFAULT; |
| 390 | |
| 391 | if (get_user(swlen, kxfer.swlen) < 0) |
| 392 | return -EFAULT; |
| 393 | |
| 394 | c = i2o_find_iop(kxfer.iop); |
| 395 | if (!c) |
| 396 | return -ENXIO; |
| 397 | |
Markus Lidel | a1a5ea7 | 2006-01-06 00:19:29 -0800 | [diff] [blame] | 398 | msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET); |
| 399 | if (IS_ERR(msg)) |
| 400 | return PTR_ERR(msg); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 401 | |
Markus Lidel | a1a5ea7 | 2006-01-06 00:19:29 -0800 | [diff] [blame] | 402 | msg->u.head[0] = cpu_to_le32(SEVEN_WORD_MSG_SIZE | SGL_OFFSET_0); |
| 403 | msg->u.head[1] = |
| 404 | cpu_to_le32(I2O_CMD_SW_REMOVE << 24 | HOST_TID << 12 | ADAPTER_TID); |
| 405 | msg->u.head[2] = cpu_to_le32(i2o_config_driver.context); |
| 406 | msg->u.head[3] = cpu_to_le32(0); |
| 407 | msg->body[0] = |
| 408 | cpu_to_le32((u32) kxfer.flags << 24 | (u32) kxfer.sw_type << 16); |
| 409 | msg->body[1] = cpu_to_le32(swlen); |
| 410 | msg->body[2] = cpu_to_le32(kxfer.sw_id); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 411 | |
Markus Lidel | a1a5ea7 | 2006-01-06 00:19:29 -0800 | [diff] [blame] | 412 | token = i2o_msg_post_wait(c, msg, 10); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 413 | |
| 414 | if (token != I2O_POST_WAIT_OK) { |
| 415 | osm_info("swdel failed, DetailedStatus = %d\n", token); |
| 416 | return -ETIMEDOUT; |
| 417 | } |
| 418 | |
| 419 | return 0; |
| 420 | }; |
| 421 | |
| 422 | static int i2o_cfg_validate(unsigned long arg) |
| 423 | { |
| 424 | int token; |
| 425 | int iop = (int)arg; |
Markus Lidel | a1a5ea7 | 2006-01-06 00:19:29 -0800 | [diff] [blame] | 426 | struct i2o_message *msg; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 427 | struct i2o_controller *c; |
| 428 | |
| 429 | c = i2o_find_iop(iop); |
| 430 | if (!c) |
| 431 | return -ENXIO; |
| 432 | |
Markus Lidel | a1a5ea7 | 2006-01-06 00:19:29 -0800 | [diff] [blame] | 433 | msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET); |
| 434 | if (IS_ERR(msg)) |
| 435 | return PTR_ERR(msg); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 436 | |
Markus Lidel | a1a5ea7 | 2006-01-06 00:19:29 -0800 | [diff] [blame] | 437 | msg->u.head[0] = cpu_to_le32(FOUR_WORD_MSG_SIZE | SGL_OFFSET_0); |
| 438 | msg->u.head[1] = |
| 439 | cpu_to_le32(I2O_CMD_CONFIG_VALIDATE << 24 | HOST_TID << 12 | iop); |
| 440 | msg->u.head[2] = cpu_to_le32(i2o_config_driver.context); |
| 441 | msg->u.head[3] = cpu_to_le32(0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 442 | |
Markus Lidel | a1a5ea7 | 2006-01-06 00:19:29 -0800 | [diff] [blame] | 443 | token = i2o_msg_post_wait(c, msg, 10); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 444 | |
| 445 | if (token != I2O_POST_WAIT_OK) { |
| 446 | osm_info("Can't validate configuration, ErrorStatus = %d\n", |
| 447 | token); |
| 448 | return -ETIMEDOUT; |
| 449 | } |
| 450 | |
| 451 | return 0; |
| 452 | }; |
| 453 | |
| 454 | static int i2o_cfg_evt_reg(unsigned long arg, struct file *fp) |
| 455 | { |
Markus Lidel | a1a5ea7 | 2006-01-06 00:19:29 -0800 | [diff] [blame] | 456 | struct i2o_message *msg; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 457 | struct i2o_evt_id __user *pdesc = (struct i2o_evt_id __user *)arg; |
| 458 | struct i2o_evt_id kdesc; |
| 459 | struct i2o_controller *c; |
| 460 | struct i2o_device *d; |
| 461 | |
| 462 | if (copy_from_user(&kdesc, pdesc, sizeof(struct i2o_evt_id))) |
| 463 | return -EFAULT; |
| 464 | |
| 465 | /* IOP exists? */ |
| 466 | c = i2o_find_iop(kdesc.iop); |
| 467 | if (!c) |
| 468 | return -ENXIO; |
| 469 | |
| 470 | /* Device exists? */ |
| 471 | d = i2o_iop_find_device(c, kdesc.tid); |
| 472 | if (!d) |
| 473 | return -ENODEV; |
| 474 | |
Markus Lidel | a1a5ea7 | 2006-01-06 00:19:29 -0800 | [diff] [blame] | 475 | msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET); |
| 476 | if (IS_ERR(msg)) |
| 477 | return PTR_ERR(msg); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 478 | |
Markus Lidel | a1a5ea7 | 2006-01-06 00:19:29 -0800 | [diff] [blame] | 479 | msg->u.head[0] = cpu_to_le32(FOUR_WORD_MSG_SIZE | SGL_OFFSET_0); |
| 480 | msg->u.head[1] = |
| 481 | cpu_to_le32(I2O_CMD_UTIL_EVT_REGISTER << 24 | HOST_TID << 12 | |
| 482 | kdesc.tid); |
| 483 | msg->u.head[2] = cpu_to_le32(i2o_config_driver.context); |
| 484 | msg->u.head[3] = cpu_to_le32(i2o_cntxt_list_add(c, fp->private_data)); |
| 485 | msg->body[0] = cpu_to_le32(kdesc.evt_mask); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 486 | |
Markus Lidel | a1a5ea7 | 2006-01-06 00:19:29 -0800 | [diff] [blame] | 487 | i2o_msg_post(c, msg); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 488 | |
| 489 | return 0; |
| 490 | } |
| 491 | |
| 492 | static int i2o_cfg_evt_get(unsigned long arg, struct file *fp) |
| 493 | { |
| 494 | struct i2o_cfg_info *p = NULL; |
| 495 | struct i2o_evt_get __user *uget = (struct i2o_evt_get __user *)arg; |
| 496 | struct i2o_evt_get kget; |
| 497 | unsigned long flags; |
| 498 | |
| 499 | for (p = open_files; p; p = p->next) |
| 500 | if (p->q_id == (ulong) fp->private_data) |
| 501 | break; |
| 502 | |
| 503 | if (!p->q_len) |
| 504 | return -ENOENT; |
| 505 | |
| 506 | memcpy(&kget.info, &p->event_q[p->q_out], sizeof(struct i2o_evt_info)); |
| 507 | MODINC(p->q_out, I2O_EVT_Q_LEN); |
| 508 | spin_lock_irqsave(&i2o_config_lock, flags); |
| 509 | p->q_len--; |
| 510 | kget.pending = p->q_len; |
| 511 | kget.lost = p->q_lost; |
| 512 | spin_unlock_irqrestore(&i2o_config_lock, flags); |
| 513 | |
| 514 | if (copy_to_user(uget, &kget, sizeof(struct i2o_evt_get))) |
| 515 | return -EFAULT; |
| 516 | return 0; |
| 517 | } |
| 518 | |
Markus Lidel | b2aaee3 | 2005-06-23 22:02:19 -0700 | [diff] [blame] | 519 | #ifdef CONFIG_I2O_EXT_ADAPTEC |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 520 | #ifdef CONFIG_COMPAT |
Markus Lidel | f33213e | 2005-06-23 22:02:23 -0700 | [diff] [blame] | 521 | static int i2o_cfg_passthru32(struct file *file, unsigned cmnd, |
| 522 | unsigned long arg) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 523 | { |
| 524 | struct i2o_cmd_passthru32 __user *cmd; |
| 525 | struct i2o_controller *c; |
| 526 | u32 __user *user_msg; |
| 527 | u32 *reply = NULL; |
| 528 | u32 __user *user_reply = NULL; |
| 529 | u32 size = 0; |
| 530 | u32 reply_size = 0; |
| 531 | u32 rcode = 0; |
| 532 | struct i2o_dma sg_list[SG_TABLESIZE]; |
| 533 | u32 sg_offset = 0; |
| 534 | u32 sg_count = 0; |
| 535 | u32 i = 0; |
Markus Lidel | 61fbfa8 | 2005-06-23 22:02:11 -0700 | [diff] [blame] | 536 | u32 sg_index = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 537 | i2o_status_block *sb; |
| 538 | struct i2o_message *msg; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 539 | unsigned int iop; |
| 540 | |
| 541 | cmd = (struct i2o_cmd_passthru32 __user *)arg; |
| 542 | |
| 543 | if (get_user(iop, &cmd->iop) || get_user(i, &cmd->msg)) |
| 544 | return -EFAULT; |
| 545 | |
| 546 | user_msg = compat_ptr(i); |
| 547 | |
| 548 | c = i2o_find_iop(iop); |
| 549 | if (!c) { |
| 550 | osm_debug("controller %d not found\n", iop); |
| 551 | return -ENXIO; |
| 552 | } |
| 553 | |
Markus Lidel | a1a5ea7 | 2006-01-06 00:19:29 -0800 | [diff] [blame] | 554 | msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 555 | |
| 556 | sb = c->status_block.virt; |
| 557 | |
| 558 | if (get_user(size, &user_msg[0])) { |
| 559 | osm_warn("unable to get size!\n"); |
| 560 | return -EFAULT; |
| 561 | } |
| 562 | size = size >> 16; |
| 563 | |
| 564 | if (size > sb->inbound_frame_size) { |
| 565 | osm_warn("size of message > inbound_frame_size"); |
| 566 | return -EFAULT; |
| 567 | } |
| 568 | |
| 569 | user_reply = &user_msg[size]; |
| 570 | |
| 571 | size <<= 2; // Convert to bytes |
| 572 | |
| 573 | /* Copy in the user's I2O command */ |
| 574 | if (copy_from_user(msg, user_msg, size)) { |
| 575 | osm_warn("unable to copy user message\n"); |
| 576 | return -EFAULT; |
| 577 | } |
| 578 | i2o_dump_message(msg); |
| 579 | |
| 580 | if (get_user(reply_size, &user_reply[0]) < 0) |
| 581 | return -EFAULT; |
| 582 | |
| 583 | reply_size >>= 16; |
| 584 | reply_size <<= 2; |
| 585 | |
Markus Lidel | f6ed39a | 2006-01-06 00:19:33 -0800 | [diff] [blame] | 586 | reply = kzalloc(reply_size, GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 587 | if (!reply) { |
| 588 | printk(KERN_WARNING "%s: Could not allocate reply buffer\n", |
| 589 | c->name); |
| 590 | return -ENOMEM; |
| 591 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 592 | |
| 593 | sg_offset = (msg->u.head[0] >> 4) & 0x0f; |
| 594 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 595 | memset(sg_list, 0, sizeof(sg_list[0]) * SG_TABLESIZE); |
| 596 | if (sg_offset) { |
| 597 | struct sg_simple_element *sg; |
| 598 | |
| 599 | if (sg_offset * 4 >= size) { |
| 600 | rcode = -EFAULT; |
| 601 | goto cleanup; |
| 602 | } |
| 603 | // TODO 64bit fix |
| 604 | sg = (struct sg_simple_element *)((&msg->u.head[0]) + |
| 605 | sg_offset); |
| 606 | sg_count = |
| 607 | (size - sg_offset * 4) / sizeof(struct sg_simple_element); |
| 608 | if (sg_count > SG_TABLESIZE) { |
| 609 | printk(KERN_DEBUG "%s:IOCTL SG List too large (%u)\n", |
| 610 | c->name, sg_count); |
Markus Lidel | 61fbfa8 | 2005-06-23 22:02:11 -0700 | [diff] [blame] | 611 | rcode = -EINVAL; |
| 612 | goto cleanup; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 613 | } |
| 614 | |
| 615 | for (i = 0; i < sg_count; i++) { |
| 616 | int sg_size; |
| 617 | struct i2o_dma *p; |
| 618 | |
| 619 | if (!(sg[i].flag_count & 0x10000000 |
| 620 | /*I2O_SGL_FLAGS_SIMPLE_ADDRESS_ELEMENT */ )) { |
| 621 | printk(KERN_DEBUG |
| 622 | "%s:Bad SG element %d - not simple (%x)\n", |
| 623 | c->name, i, sg[i].flag_count); |
| 624 | rcode = -EINVAL; |
| 625 | goto cleanup; |
| 626 | } |
| 627 | sg_size = sg[i].flag_count & 0xffffff; |
Markus Lidel | dcceafe | 2006-01-06 00:19:32 -0800 | [diff] [blame] | 628 | p = &(sg_list[sg_index]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 629 | /* Allocate memory for the transfer */ |
| 630 | if (i2o_dma_alloc |
| 631 | (&c->pdev->dev, p, sg_size, |
| 632 | PCI_DMA_BIDIRECTIONAL)) { |
| 633 | printk(KERN_DEBUG |
| 634 | "%s: Could not allocate SG buffer - size = %d buffer number %d of %d\n", |
| 635 | c->name, sg_size, i, sg_count); |
| 636 | rcode = -ENOMEM; |
Markus Lidel | 61fbfa8 | 2005-06-23 22:02:11 -0700 | [diff] [blame] | 637 | goto sg_list_cleanup; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 638 | } |
Markus Lidel | dcceafe | 2006-01-06 00:19:32 -0800 | [diff] [blame] | 639 | sg_index++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 640 | /* Copy in the user's SG buffer if necessary */ |
| 641 | if (sg[i]. |
| 642 | flag_count & 0x04000000 /*I2O_SGL_FLAGS_DIR */ ) { |
| 643 | // TODO 64bit fix |
| 644 | if (copy_from_user |
Markus Lidel | f33213e | 2005-06-23 22:02:23 -0700 | [diff] [blame] | 645 | (p->virt, |
| 646 | (void __user *)(unsigned long)sg[i]. |
| 647 | addr_bus, sg_size)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 648 | printk(KERN_DEBUG |
| 649 | "%s: Could not copy SG buf %d FROM user\n", |
| 650 | c->name, i); |
| 651 | rcode = -EFAULT; |
Markus Lidel | 61fbfa8 | 2005-06-23 22:02:11 -0700 | [diff] [blame] | 652 | goto sg_list_cleanup; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 653 | } |
| 654 | } |
| 655 | //TODO 64bit fix |
| 656 | sg[i].addr_bus = (u32) p->phys; |
| 657 | } |
| 658 | } |
| 659 | |
Markus Lidel | a1a5ea7 | 2006-01-06 00:19:29 -0800 | [diff] [blame] | 660 | rcode = i2o_msg_post_wait(c, msg, 60); |
Markus Lidel | dcceafe | 2006-01-06 00:19:32 -0800 | [diff] [blame] | 661 | if (rcode) { |
| 662 | reply[4] = ((u32) rcode) << 24; |
Markus Lidel | 61fbfa8 | 2005-06-23 22:02:11 -0700 | [diff] [blame] | 663 | goto sg_list_cleanup; |
Markus Lidel | dcceafe | 2006-01-06 00:19:32 -0800 | [diff] [blame] | 664 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 665 | |
| 666 | if (sg_offset) { |
Markus Lidel | 9e87545 | 2005-06-23 22:02:21 -0700 | [diff] [blame] | 667 | u32 msg[I2O_OUTBOUND_MSG_FRAME_SIZE]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 668 | /* Copy back the Scatter Gather buffers back to user space */ |
| 669 | u32 j; |
| 670 | // TODO 64bit fix |
| 671 | struct sg_simple_element *sg; |
| 672 | int sg_size; |
| 673 | |
| 674 | // re-acquire the original message to handle correctly the sg copy operation |
Markus Lidel | 9e87545 | 2005-06-23 22:02:21 -0700 | [diff] [blame] | 675 | memset(&msg, 0, I2O_OUTBOUND_MSG_FRAME_SIZE * 4); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 676 | // get user msg size in u32s |
| 677 | if (get_user(size, &user_msg[0])) { |
| 678 | rcode = -EFAULT; |
Markus Lidel | 61fbfa8 | 2005-06-23 22:02:11 -0700 | [diff] [blame] | 679 | goto sg_list_cleanup; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 680 | } |
| 681 | size = size >> 16; |
| 682 | size *= 4; |
| 683 | /* Copy in the user's I2O command */ |
| 684 | if (copy_from_user(msg, user_msg, size)) { |
| 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 | sg_count = |
| 689 | (size - sg_offset * 4) / sizeof(struct sg_simple_element); |
| 690 | |
| 691 | // TODO 64bit fix |
| 692 | sg = (struct sg_simple_element *)(msg + sg_offset); |
| 693 | for (j = 0; j < sg_count; j++) { |
| 694 | /* Copy out the SG list to user's buffer if necessary */ |
| 695 | if (! |
| 696 | (sg[j]. |
| 697 | flag_count & 0x4000000 /*I2O_SGL_FLAGS_DIR */ )) { |
| 698 | sg_size = sg[j].flag_count & 0xffffff; |
| 699 | // TODO 64bit fix |
| 700 | if (copy_to_user |
| 701 | ((void __user *)(u64) sg[j].addr_bus, |
| 702 | sg_list[j].virt, sg_size)) { |
| 703 | printk(KERN_WARNING |
| 704 | "%s: Could not copy %p TO user %x\n", |
| 705 | c->name, sg_list[j].virt, |
| 706 | sg[j].addr_bus); |
| 707 | rcode = -EFAULT; |
Markus Lidel | 61fbfa8 | 2005-06-23 22:02:11 -0700 | [diff] [blame] | 708 | goto sg_list_cleanup; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 709 | } |
| 710 | } |
| 711 | } |
| 712 | } |
| 713 | |
Markus Lidel | dcceafe | 2006-01-06 00:19:32 -0800 | [diff] [blame] | 714 | sg_list_cleanup: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 715 | /* Copy back the reply to user space */ |
| 716 | if (reply_size) { |
| 717 | // we wrote our own values for context - now restore the user supplied ones |
| 718 | if (copy_from_user(reply + 2, user_msg + 2, sizeof(u32) * 2)) { |
| 719 | printk(KERN_WARNING |
| 720 | "%s: Could not copy message context FROM user\n", |
| 721 | c->name); |
| 722 | rcode = -EFAULT; |
Markus Lidel | 61fbfa8 | 2005-06-23 22:02:11 -0700 | [diff] [blame] | 723 | goto sg_list_cleanup; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 724 | } |
| 725 | if (copy_to_user(user_reply, reply, reply_size)) { |
| 726 | printk(KERN_WARNING |
| 727 | "%s: Could not copy reply TO user\n", c->name); |
| 728 | rcode = -EFAULT; |
| 729 | } |
| 730 | } |
| 731 | |
Markus Lidel | 61fbfa8 | 2005-06-23 22:02:11 -0700 | [diff] [blame] | 732 | for (i = 0; i < sg_index; i++) |
| 733 | i2o_dma_free(&c->pdev->dev, &sg_list[i]); |
| 734 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 735 | cleanup: |
| 736 | kfree(reply); |
| 737 | return rcode; |
| 738 | } |
| 739 | |
Markus Lidel | f33213e | 2005-06-23 22:02:23 -0700 | [diff] [blame] | 740 | static long i2o_cfg_compat_ioctl(struct file *file, unsigned cmd, |
| 741 | unsigned long arg) |
| f4c2c15 | 2005-04-10 22:29:42 -0500 | [diff] [blame] | 742 | { |
| 743 | int ret; |
Markus Lidel | f33213e | 2005-06-23 22:02:23 -0700 | [diff] [blame] | 744 | lock_kernel(); |
| 745 | switch (cmd) { |
| f4c2c15 | 2005-04-10 22:29:42 -0500 | [diff] [blame] | 746 | case I2OGETIOPS: |
| 747 | ret = i2o_cfg_ioctl(NULL, file, cmd, arg); |
| 748 | break; |
| 749 | case I2OPASSTHRU32: |
| 750 | ret = i2o_cfg_passthru32(file, cmd, arg); |
| 751 | break; |
| 752 | default: |
| 753 | ret = -ENOIOCTLCMD; |
| 754 | break; |
| 755 | } |
| 756 | unlock_kernel(); |
| 757 | return ret; |
| 758 | } |
| 759 | |
| 760 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 761 | |
| 762 | static int i2o_cfg_passthru(unsigned long arg) |
| 763 | { |
| 764 | struct i2o_cmd_passthru __user *cmd = |
| 765 | (struct i2o_cmd_passthru __user *)arg; |
| 766 | struct i2o_controller *c; |
| 767 | u32 __user *user_msg; |
| 768 | u32 *reply = NULL; |
| 769 | u32 __user *user_reply = NULL; |
| 770 | u32 size = 0; |
| 771 | u32 reply_size = 0; |
| 772 | u32 rcode = 0; |
| 773 | void *sg_list[SG_TABLESIZE]; |
| 774 | u32 sg_offset = 0; |
| 775 | u32 sg_count = 0; |
| 776 | int sg_index = 0; |
| 777 | u32 i = 0; |
| 778 | void *p = NULL; |
| 779 | i2o_status_block *sb; |
Markus Lidel | a1a5ea7 | 2006-01-06 00:19:29 -0800 | [diff] [blame] | 780 | struct i2o_message *msg; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 781 | unsigned int iop; |
| 782 | |
| 783 | if (get_user(iop, &cmd->iop) || get_user(user_msg, &cmd->msg)) |
| 784 | return -EFAULT; |
| 785 | |
| 786 | c = i2o_find_iop(iop); |
| 787 | if (!c) { |
| 788 | osm_warn("controller %d not found\n", iop); |
| 789 | return -ENXIO; |
| 790 | } |
| 791 | |
Markus Lidel | a1a5ea7 | 2006-01-06 00:19:29 -0800 | [diff] [blame] | 792 | msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 793 | |
| 794 | sb = c->status_block.virt; |
| 795 | |
| 796 | if (get_user(size, &user_msg[0])) |
| 797 | return -EFAULT; |
| 798 | size = size >> 16; |
| 799 | |
| 800 | if (size > sb->inbound_frame_size) { |
| 801 | osm_warn("size of message > inbound_frame_size"); |
| 802 | return -EFAULT; |
| 803 | } |
| 804 | |
| 805 | user_reply = &user_msg[size]; |
| 806 | |
| 807 | size <<= 2; // Convert to bytes |
| 808 | |
| 809 | /* Copy in the user's I2O command */ |
| 810 | if (copy_from_user(msg, user_msg, size)) |
| 811 | return -EFAULT; |
| 812 | |
| 813 | if (get_user(reply_size, &user_reply[0]) < 0) |
| 814 | return -EFAULT; |
| 815 | |
| 816 | reply_size >>= 16; |
| 817 | reply_size <<= 2; |
| 818 | |
Markus Lidel | f6ed39a | 2006-01-06 00:19:33 -0800 | [diff] [blame] | 819 | reply = kzalloc(reply_size, GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 820 | if (!reply) { |
| 821 | printk(KERN_WARNING "%s: Could not allocate reply buffer\n", |
| 822 | c->name); |
| 823 | return -ENOMEM; |
| 824 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 825 | |
| 826 | sg_offset = (msg->u.head[0] >> 4) & 0x0f; |
| 827 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 828 | memset(sg_list, 0, sizeof(sg_list[0]) * SG_TABLESIZE); |
| 829 | if (sg_offset) { |
| 830 | struct sg_simple_element *sg; |
| 831 | |
| 832 | if (sg_offset * 4 >= size) { |
| 833 | rcode = -EFAULT; |
| 834 | goto cleanup; |
| 835 | } |
| 836 | // TODO 64bit fix |
| 837 | sg = (struct sg_simple_element *)((&msg->u.head[0]) + |
| 838 | sg_offset); |
| 839 | sg_count = |
| 840 | (size - sg_offset * 4) / sizeof(struct sg_simple_element); |
| 841 | if (sg_count > SG_TABLESIZE) { |
| 842 | printk(KERN_DEBUG "%s:IOCTL SG List too large (%u)\n", |
| 843 | c->name, sg_count); |
Markus Lidel | 61fbfa8 | 2005-06-23 22:02:11 -0700 | [diff] [blame] | 844 | rcode = -EINVAL; |
| 845 | goto cleanup; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 846 | } |
| 847 | |
| 848 | for (i = 0; i < sg_count; i++) { |
| 849 | int sg_size; |
| 850 | |
| 851 | if (!(sg[i].flag_count & 0x10000000 |
| 852 | /*I2O_SGL_FLAGS_SIMPLE_ADDRESS_ELEMENT */ )) { |
| 853 | printk(KERN_DEBUG |
| 854 | "%s:Bad SG element %d - not simple (%x)\n", |
| 855 | c->name, i, sg[i].flag_count); |
| 856 | rcode = -EINVAL; |
Markus Lidel | 61fbfa8 | 2005-06-23 22:02:11 -0700 | [diff] [blame] | 857 | goto sg_list_cleanup; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 858 | } |
| 859 | sg_size = sg[i].flag_count & 0xffffff; |
| 860 | /* Allocate memory for the transfer */ |
| 861 | p = kmalloc(sg_size, GFP_KERNEL); |
| 862 | if (!p) { |
| 863 | printk(KERN_DEBUG |
| 864 | "%s: Could not allocate SG buffer - size = %d buffer number %d of %d\n", |
| 865 | c->name, sg_size, i, sg_count); |
| 866 | rcode = -ENOMEM; |
Markus Lidel | 61fbfa8 | 2005-06-23 22:02:11 -0700 | [diff] [blame] | 867 | goto sg_list_cleanup; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 868 | } |
| 869 | sg_list[sg_index++] = p; // sglist indexed with input frame, not our internal frame. |
| 870 | /* Copy in the user's SG buffer if necessary */ |
| 871 | if (sg[i]. |
| 872 | flag_count & 0x04000000 /*I2O_SGL_FLAGS_DIR */ ) { |
| 873 | // TODO 64bit fix |
| 874 | if (copy_from_user |
| 875 | (p, (void __user *)sg[i].addr_bus, |
| 876 | sg_size)) { |
| 877 | printk(KERN_DEBUG |
| 878 | "%s: Could not copy SG buf %d FROM user\n", |
| 879 | c->name, i); |
| 880 | rcode = -EFAULT; |
Markus Lidel | 61fbfa8 | 2005-06-23 22:02:11 -0700 | [diff] [blame] | 881 | goto sg_list_cleanup; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 882 | } |
| 883 | } |
| 884 | //TODO 64bit fix |
| 885 | sg[i].addr_bus = virt_to_bus(p); |
| 886 | } |
| 887 | } |
| 888 | |
Markus Lidel | a1a5ea7 | 2006-01-06 00:19:29 -0800 | [diff] [blame] | 889 | rcode = i2o_msg_post_wait(c, msg, 60); |
Markus Lidel | dcceafe | 2006-01-06 00:19:32 -0800 | [diff] [blame] | 890 | if (rcode) { |
| 891 | reply[4] = ((u32) rcode) << 24; |
Markus Lidel | 61fbfa8 | 2005-06-23 22:02:11 -0700 | [diff] [blame] | 892 | goto sg_list_cleanup; |
Markus Lidel | dcceafe | 2006-01-06 00:19:32 -0800 | [diff] [blame] | 893 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 894 | |
| 895 | if (sg_offset) { |
| 896 | u32 msg[128]; |
| 897 | /* Copy back the Scatter Gather buffers back to user space */ |
| 898 | u32 j; |
| 899 | // TODO 64bit fix |
| 900 | struct sg_simple_element *sg; |
| 901 | int sg_size; |
| 902 | |
| 903 | // re-acquire the original message to handle correctly the sg copy operation |
Markus Lidel | 9e87545 | 2005-06-23 22:02:21 -0700 | [diff] [blame] | 904 | memset(&msg, 0, I2O_OUTBOUND_MSG_FRAME_SIZE * 4); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 905 | // get user msg size in u32s |
| 906 | if (get_user(size, &user_msg[0])) { |
| 907 | rcode = -EFAULT; |
Markus Lidel | 61fbfa8 | 2005-06-23 22:02:11 -0700 | [diff] [blame] | 908 | goto sg_list_cleanup; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 909 | } |
| 910 | size = size >> 16; |
| 911 | size *= 4; |
| 912 | /* Copy in the user's I2O command */ |
| 913 | if (copy_from_user(msg, user_msg, size)) { |
| 914 | rcode = -EFAULT; |
Markus Lidel | 61fbfa8 | 2005-06-23 22:02:11 -0700 | [diff] [blame] | 915 | goto sg_list_cleanup; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 916 | } |
| 917 | sg_count = |
| 918 | (size - sg_offset * 4) / sizeof(struct sg_simple_element); |
| 919 | |
| 920 | // TODO 64bit fix |
| 921 | sg = (struct sg_simple_element *)(msg + sg_offset); |
| 922 | for (j = 0; j < sg_count; j++) { |
| 923 | /* Copy out the SG list to user's buffer if necessary */ |
| 924 | if (! |
| 925 | (sg[j]. |
| 926 | flag_count & 0x4000000 /*I2O_SGL_FLAGS_DIR */ )) { |
| 927 | sg_size = sg[j].flag_count & 0xffffff; |
| 928 | // TODO 64bit fix |
| 929 | if (copy_to_user |
| 930 | ((void __user *)sg[j].addr_bus, sg_list[j], |
| 931 | sg_size)) { |
| 932 | printk(KERN_WARNING |
| 933 | "%s: Could not copy %p TO user %x\n", |
| 934 | c->name, sg_list[j], |
| 935 | sg[j].addr_bus); |
| 936 | rcode = -EFAULT; |
Markus Lidel | 61fbfa8 | 2005-06-23 22:02:11 -0700 | [diff] [blame] | 937 | goto sg_list_cleanup; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 938 | } |
| 939 | } |
| 940 | } |
| 941 | } |
| 942 | |
Markus Lidel | dcceafe | 2006-01-06 00:19:32 -0800 | [diff] [blame] | 943 | sg_list_cleanup: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 944 | /* Copy back the reply to user space */ |
| 945 | if (reply_size) { |
| 946 | // we wrote our own values for context - now restore the user supplied ones |
| 947 | if (copy_from_user(reply + 2, user_msg + 2, sizeof(u32) * 2)) { |
| 948 | printk(KERN_WARNING |
| 949 | "%s: Could not copy message context FROM user\n", |
| 950 | c->name); |
| 951 | rcode = -EFAULT; |
| 952 | } |
| 953 | if (copy_to_user(user_reply, reply, reply_size)) { |
| 954 | printk(KERN_WARNING |
| 955 | "%s: Could not copy reply TO user\n", c->name); |
| 956 | rcode = -EFAULT; |
| 957 | } |
| 958 | } |
| 959 | |
Markus Lidel | 61fbfa8 | 2005-06-23 22:02:11 -0700 | [diff] [blame] | 960 | for (i = 0; i < sg_index; i++) |
| 961 | kfree(sg_list[i]); |
| 962 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 963 | cleanup: |
| 964 | kfree(reply); |
| 965 | return rcode; |
| 966 | } |
Markus Lidel | b2aaee3 | 2005-06-23 22:02:19 -0700 | [diff] [blame] | 967 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 968 | |
| 969 | /* |
| 970 | * IOCTL Handler |
| 971 | */ |
| 972 | static int i2o_cfg_ioctl(struct inode *inode, struct file *fp, unsigned int cmd, |
| 973 | unsigned long arg) |
| 974 | { |
| 975 | int ret; |
| 976 | |
| 977 | switch (cmd) { |
| 978 | case I2OGETIOPS: |
| 979 | ret = i2o_cfg_getiops(arg); |
| 980 | break; |
| 981 | |
| 982 | case I2OHRTGET: |
| 983 | ret = i2o_cfg_gethrt(arg); |
| 984 | break; |
| 985 | |
| 986 | case I2OLCTGET: |
| 987 | ret = i2o_cfg_getlct(arg); |
| 988 | break; |
| 989 | |
| 990 | case I2OPARMSET: |
| 991 | ret = i2o_cfg_parms(arg, I2OPARMSET); |
| 992 | break; |
| 993 | |
| 994 | case I2OPARMGET: |
| 995 | ret = i2o_cfg_parms(arg, I2OPARMGET); |
| 996 | break; |
| 997 | |
| 998 | case I2OSWDL: |
| 999 | ret = i2o_cfg_swdl(arg); |
| 1000 | break; |
| 1001 | |
| 1002 | case I2OSWUL: |
| 1003 | ret = i2o_cfg_swul(arg); |
| 1004 | break; |
| 1005 | |
| 1006 | case I2OSWDEL: |
| 1007 | ret = i2o_cfg_swdel(arg); |
| 1008 | break; |
| 1009 | |
| 1010 | case I2OVALIDATE: |
| 1011 | ret = i2o_cfg_validate(arg); |
| 1012 | break; |
| 1013 | |
| 1014 | case I2OEVTREG: |
| 1015 | ret = i2o_cfg_evt_reg(arg, fp); |
| 1016 | break; |
| 1017 | |
| 1018 | case I2OEVTGET: |
| 1019 | ret = i2o_cfg_evt_get(arg, fp); |
| 1020 | break; |
| 1021 | |
Markus Lidel | b2aaee3 | 2005-06-23 22:02:19 -0700 | [diff] [blame] | 1022 | #ifdef CONFIG_I2O_EXT_ADAPTEC |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1023 | case I2OPASSTHRU: |
| 1024 | ret = i2o_cfg_passthru(arg); |
| 1025 | break; |
Markus Lidel | b2aaee3 | 2005-06-23 22:02:19 -0700 | [diff] [blame] | 1026 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1027 | |
| 1028 | default: |
| 1029 | osm_debug("unknown ioctl called!\n"); |
| 1030 | ret = -EINVAL; |
| 1031 | } |
| 1032 | |
| 1033 | return ret; |
| 1034 | } |
| 1035 | |
| 1036 | static int cfg_open(struct inode *inode, struct file *file) |
| 1037 | { |
| 1038 | struct i2o_cfg_info *tmp = |
| 1039 | (struct i2o_cfg_info *)kmalloc(sizeof(struct i2o_cfg_info), |
| 1040 | GFP_KERNEL); |
| 1041 | unsigned long flags; |
| 1042 | |
| 1043 | if (!tmp) |
| 1044 | return -ENOMEM; |
| 1045 | |
| 1046 | file->private_data = (void *)(i2o_cfg_info_id++); |
| 1047 | tmp->fp = file; |
| 1048 | tmp->fasync = NULL; |
| 1049 | tmp->q_id = (ulong) file->private_data; |
| 1050 | tmp->q_len = 0; |
| 1051 | tmp->q_in = 0; |
| 1052 | tmp->q_out = 0; |
| 1053 | tmp->q_lost = 0; |
| 1054 | tmp->next = open_files; |
| 1055 | |
| 1056 | spin_lock_irqsave(&i2o_config_lock, flags); |
| 1057 | open_files = tmp; |
| 1058 | spin_unlock_irqrestore(&i2o_config_lock, flags); |
| 1059 | |
| 1060 | return 0; |
| 1061 | } |
| 1062 | |
| 1063 | static int cfg_fasync(int fd, struct file *fp, int on) |
| 1064 | { |
| 1065 | ulong id = (ulong) fp->private_data; |
| 1066 | struct i2o_cfg_info *p; |
| 1067 | |
| 1068 | for (p = open_files; p; p = p->next) |
| 1069 | if (p->q_id == id) |
| 1070 | break; |
| 1071 | |
| 1072 | if (!p) |
| 1073 | return -EBADF; |
| 1074 | |
| 1075 | return fasync_helper(fd, fp, on, &p->fasync); |
| 1076 | } |
| 1077 | |
| 1078 | static int cfg_release(struct inode *inode, struct file *file) |
| 1079 | { |
| 1080 | ulong id = (ulong) file->private_data; |
| 1081 | struct i2o_cfg_info *p1, *p2; |
| 1082 | unsigned long flags; |
| 1083 | |
| 1084 | lock_kernel(); |
| 1085 | p1 = p2 = NULL; |
| 1086 | |
| 1087 | spin_lock_irqsave(&i2o_config_lock, flags); |
| 1088 | for (p1 = open_files; p1;) { |
| 1089 | if (p1->q_id == id) { |
| 1090 | |
| 1091 | if (p1->fasync) |
| 1092 | cfg_fasync(-1, file, 0); |
| 1093 | if (p2) |
| 1094 | p2->next = p1->next; |
| 1095 | else |
| 1096 | open_files = p1->next; |
| 1097 | |
| 1098 | kfree(p1); |
| 1099 | break; |
| 1100 | } |
| 1101 | p2 = p1; |
| 1102 | p1 = p1->next; |
| 1103 | } |
| 1104 | spin_unlock_irqrestore(&i2o_config_lock, flags); |
| 1105 | unlock_kernel(); |
| 1106 | |
| 1107 | return 0; |
| 1108 | } |
| 1109 | |
| 1110 | static struct file_operations config_fops = { |
| 1111 | .owner = THIS_MODULE, |
| 1112 | .llseek = no_llseek, |
| 1113 | .ioctl = i2o_cfg_ioctl, |
| f4c2c15 | 2005-04-10 22:29:42 -0500 | [diff] [blame] | 1114 | #ifdef CONFIG_COMPAT |
| 1115 | .compat_ioctl = i2o_cfg_compat_ioctl, |
| 1116 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1117 | .open = cfg_open, |
| 1118 | .release = cfg_release, |
| 1119 | .fasync = cfg_fasync, |
| 1120 | }; |
| 1121 | |
| 1122 | static struct miscdevice i2o_miscdev = { |
| 1123 | I2O_MINOR, |
| 1124 | "i2octl", |
| 1125 | &config_fops |
| 1126 | }; |
| 1127 | |
Markus Lidel | f10378f | 2005-06-23 22:02:16 -0700 | [diff] [blame] | 1128 | static int __init i2o_config_old_init(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1129 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1130 | spin_lock_init(&i2o_config_lock); |
| 1131 | |
| 1132 | if (misc_register(&i2o_miscdev) < 0) { |
| 1133 | osm_err("can't register device.\n"); |
| 1134 | return -EBUSY; |
| 1135 | } |
Markus Lidel | f33213e | 2005-06-23 22:02:23 -0700 | [diff] [blame] | 1136 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1137 | return 0; |
| 1138 | } |
| 1139 | |
Markus Lidel | f10378f | 2005-06-23 22:02:16 -0700 | [diff] [blame] | 1140 | static void i2o_config_old_exit(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1141 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1142 | misc_deregister(&i2o_miscdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1143 | } |
| 1144 | |
| 1145 | MODULE_AUTHOR("Red Hat Software"); |