Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* |
2 | * Adaptec AAC series RAID controller driver | |
fa195afe | 3 | * (c) Copyright 2001 Red Hat Inc. |
1da177e4 LT |
4 | * |
5 | * based on the old aacraid driver that is.. | |
6 | * Adaptec aacraid device driver for Linux. | |
7 | * | |
e8b12f0f MR |
8 | * Copyright (c) 2000-2010 Adaptec, Inc. |
9 | * 2010 PMC-Sierra, Inc. (aacraid@pmc-sierra.com) | |
1da177e4 LT |
10 | * |
11 | * This program is free software; you can redistribute it and/or modify | |
12 | * it under the terms of the GNU General Public License as published by | |
13 | * the Free Software Foundation; either version 2, or (at your option) | |
14 | * any later version. | |
15 | * | |
16 | * This program is distributed in the hope that it will be useful, | |
17 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
19 | * GNU General Public License for more details. | |
20 | * | |
21 | * You should have received a copy of the GNU General Public License | |
22 | * along with this program; see the file COPYING. If not, write to | |
23 | * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. | |
24 | * | |
25 | * Module Name: | |
26 | * commctrl.c | |
27 | * | |
28 | * Abstract: Contains all routines for control of the AFA comm layer | |
29 | * | |
30 | */ | |
31 | ||
32 | #include <linux/kernel.h> | |
33 | #include <linux/init.h> | |
34 | #include <linux/types.h> | |
1da177e4 LT |
35 | #include <linux/pci.h> |
36 | #include <linux/spinlock.h> | |
37 | #include <linux/slab.h> | |
38 | #include <linux/completion.h> | |
39 | #include <linux/dma-mapping.h> | |
40 | #include <linux/blkdev.h> | |
c8f7b073 | 41 | #include <linux/delay.h> /* ssleep prototype */ |
dc4adbf4 | 42 | #include <linux/kthread.h> |
6188e10d | 43 | #include <linux/semaphore.h> |
1da177e4 | 44 | #include <asm/uaccess.h> |
09050715 | 45 | #include <scsi/scsi_host.h> |
1da177e4 LT |
46 | |
47 | #include "aacraid.h" | |
48 | ||
49 | /** | |
50 | * ioctl_send_fib - send a FIB from userspace | |
51 | * @dev: adapter is being processed | |
52 | * @arg: arguments to the ioctl call | |
8ce3eca4 | 53 | * |
1da177e4 LT |
54 | * This routine sends a fib to the adapter on behalf of a user level |
55 | * program. | |
56 | */ | |
7c00ffa3 MH |
57 | # define AAC_DEBUG_PREAMBLE KERN_INFO |
58 | # define AAC_DEBUG_POSTAMBLE | |
8ce3eca4 | 59 | |
1da177e4 LT |
60 | static int ioctl_send_fib(struct aac_dev * dev, void __user *arg) |
61 | { | |
62 | struct hw_fib * kfib; | |
63 | struct fib *fibptr; | |
7c00ffa3 MH |
64 | struct hw_fib * hw_fib = (struct hw_fib *)0; |
65 | dma_addr_t hw_fib_pa = (dma_addr_t)0LL; | |
66 | unsigned size; | |
67 | int retval; | |
1da177e4 | 68 | |
33bb3b29 MH |
69 | if (dev->in_reset) { |
70 | return -EBUSY; | |
71 | } | |
bfb35aa8 | 72 | fibptr = aac_fib_alloc(dev); |
7c00ffa3 | 73 | if(fibptr == NULL) { |
1da177e4 | 74 | return -ENOMEM; |
7c00ffa3 | 75 | } |
8ce3eca4 | 76 | |
a8166a52 | 77 | kfib = fibptr->hw_fib_va; |
1da177e4 LT |
78 | /* |
79 | * First copy in the header so that we can check the size field. | |
80 | */ | |
81 | if (copy_from_user((void *)kfib, arg, sizeof(struct aac_fibhdr))) { | |
bfb35aa8 | 82 | aac_fib_free(fibptr); |
1da177e4 LT |
83 | return -EFAULT; |
84 | } | |
85 | /* | |
86 | * Since we copy based on the fib header size, make sure that we | |
87 | * will not overrun the buffer when we copy the memory. Return | |
88 | * an error if we would. | |
89 | */ | |
7c00ffa3 MH |
90 | size = le16_to_cpu(kfib->header.Size) + sizeof(struct aac_fibhdr); |
91 | if (size < le16_to_cpu(kfib->header.SenderSize)) | |
92 | size = le16_to_cpu(kfib->header.SenderSize); | |
93 | if (size > dev->max_fib_size) { | |
e9899113 FT |
94 | dma_addr_t daddr; |
95 | ||
6e289a90 MH |
96 | if (size > 2048) { |
97 | retval = -EINVAL; | |
98 | goto cleanup; | |
99 | } | |
e9899113 FT |
100 | |
101 | kfib = pci_alloc_consistent(dev->pdev, size, &daddr); | |
102 | if (!kfib) { | |
103 | retval = -ENOMEM; | |
104 | goto cleanup; | |
105 | } | |
106 | ||
7c00ffa3 | 107 | /* Highjack the hw_fib */ |
a8166a52 | 108 | hw_fib = fibptr->hw_fib_va; |
7c00ffa3 | 109 | hw_fib_pa = fibptr->hw_fib_pa; |
e9899113 FT |
110 | fibptr->hw_fib_va = kfib; |
111 | fibptr->hw_fib_pa = daddr; | |
7c00ffa3 MH |
112 | memset(((char *)kfib) + dev->max_fib_size, 0, size - dev->max_fib_size); |
113 | memcpy(kfib, hw_fib, dev->max_fib_size); | |
1da177e4 LT |
114 | } |
115 | ||
7c00ffa3 MH |
116 | if (copy_from_user(kfib, arg, size)) { |
117 | retval = -EFAULT; | |
118 | goto cleanup; | |
1da177e4 LT |
119 | } |
120 | ||
56b58712 | 121 | if (kfib->header.Command == cpu_to_le16(TakeABreakPt)) { |
1da177e4 LT |
122 | aac_adapter_interrupt(dev); |
123 | /* | |
8ce3eca4 | 124 | * Since we didn't really send a fib, zero out the state to allow |
1da177e4 LT |
125 | * cleanup code not to assert. |
126 | */ | |
127 | kfib->header.XferState = 0; | |
128 | } else { | |
bfb35aa8 | 129 | retval = aac_fib_send(le16_to_cpu(kfib->header.Command), fibptr, |
1da177e4 LT |
130 | le16_to_cpu(kfib->header.Size) , FsaNormal, |
131 | 1, 1, NULL, NULL); | |
132 | if (retval) { | |
7c00ffa3 | 133 | goto cleanup; |
1da177e4 | 134 | } |
bfb35aa8 | 135 | if (aac_fib_complete(fibptr) != 0) { |
7c00ffa3 MH |
136 | retval = -EINVAL; |
137 | goto cleanup; | |
1da177e4 LT |
138 | } |
139 | } | |
140 | /* | |
141 | * Make sure that the size returned by the adapter (which includes | |
142 | * the header) is less than or equal to the size of a fib, so we | |
143 | * don't corrupt application data. Then copy that size to the user | |
144 | * buffer. (Don't try to add the header information again, since it | |
145 | * was already included by the adapter.) | |
146 | */ | |
147 | ||
7c00ffa3 MH |
148 | retval = 0; |
149 | if (copy_to_user(arg, (void *)kfib, size)) | |
150 | retval = -EFAULT; | |
151 | cleanup: | |
152 | if (hw_fib) { | |
153 | pci_free_consistent(dev->pdev, size, kfib, fibptr->hw_fib_pa); | |
154 | fibptr->hw_fib_pa = hw_fib_pa; | |
a8166a52 | 155 | fibptr->hw_fib_va = hw_fib; |
1da177e4 | 156 | } |
cacb6dc3 | 157 | if (retval != -ERESTARTSYS) |
c8f7b073 | 158 | aac_fib_free(fibptr); |
7c00ffa3 | 159 | return retval; |
1da177e4 LT |
160 | } |
161 | ||
162 | /** | |
163 | * open_getadapter_fib - Get the next fib | |
164 | * | |
165 | * This routine will get the next Fib, if available, from the AdapterFibContext | |
166 | * passed in from the user. | |
167 | */ | |
168 | ||
169 | static int open_getadapter_fib(struct aac_dev * dev, void __user *arg) | |
170 | { | |
171 | struct aac_fib_context * fibctx; | |
172 | int status; | |
173 | ||
174 | fibctx = kmalloc(sizeof(struct aac_fib_context), GFP_KERNEL); | |
175 | if (fibctx == NULL) { | |
176 | status = -ENOMEM; | |
177 | } else { | |
178 | unsigned long flags; | |
179 | struct list_head * entry; | |
180 | struct aac_fib_context * context; | |
181 | ||
182 | fibctx->type = FSAFS_NTC_GET_ADAPTER_FIB_CONTEXT; | |
183 | fibctx->size = sizeof(struct aac_fib_context); | |
8ce3eca4 | 184 | /* |
1da177e4 LT |
185 | * Yes yes, I know this could be an index, but we have a |
186 | * better guarantee of uniqueness for the locked loop below. | |
187 | * Without the aid of a persistent history, this also helps | |
188 | * reduce the chance that the opaque context would be reused. | |
189 | */ | |
190 | fibctx->unique = (u32)((ulong)fibctx & 0xFFFFFFFF); | |
191 | /* | |
192 | * Initialize the mutex used to wait for the next AIF. | |
193 | */ | |
6de76cfc | 194 | sema_init(&fibctx->wait_sem, 0); |
1da177e4 LT |
195 | fibctx->wait = 0; |
196 | /* | |
197 | * Initialize the fibs and set the count of fibs on | |
198 | * the list to 0. | |
199 | */ | |
200 | fibctx->count = 0; | |
201 | INIT_LIST_HEAD(&fibctx->fib_list); | |
202 | fibctx->jiffies = jiffies/HZ; | |
203 | /* | |
8ce3eca4 | 204 | * Now add this context onto the adapter's |
1da177e4 LT |
205 | * AdapterFibContext list. |
206 | */ | |
207 | spin_lock_irqsave(&dev->fib_lock, flags); | |
208 | /* Ensure that we have a unique identifier */ | |
209 | entry = dev->fib_list.next; | |
210 | while (entry != &dev->fib_list) { | |
211 | context = list_entry(entry, struct aac_fib_context, next); | |
212 | if (context->unique == fibctx->unique) { | |
213 | /* Not unique (32 bits) */ | |
214 | fibctx->unique++; | |
215 | entry = dev->fib_list.next; | |
216 | } else { | |
217 | entry = entry->next; | |
218 | } | |
219 | } | |
220 | list_add_tail(&fibctx->next, &dev->fib_list); | |
221 | spin_unlock_irqrestore(&dev->fib_lock, flags); | |
8ce3eca4 | 222 | if (copy_to_user(arg, &fibctx->unique, |
1da177e4 LT |
223 | sizeof(fibctx->unique))) { |
224 | status = -EFAULT; | |
225 | } else { | |
226 | status = 0; | |
8ce3eca4 | 227 | } |
1da177e4 LT |
228 | } |
229 | return status; | |
230 | } | |
231 | ||
232 | /** | |
233 | * next_getadapter_fib - get the next fib | |
234 | * @dev: adapter to use | |
235 | * @arg: ioctl argument | |
8ce3eca4 SM |
236 | * |
237 | * This routine will get the next Fib, if available, from the AdapterFibContext | |
1da177e4 LT |
238 | * passed in from the user. |
239 | */ | |
240 | ||
241 | static int next_getadapter_fib(struct aac_dev * dev, void __user *arg) | |
242 | { | |
243 | struct fib_ioctl f; | |
244 | struct fib *fib; | |
245 | struct aac_fib_context *fibctx; | |
246 | int status; | |
247 | struct list_head * entry; | |
248 | unsigned long flags; | |
8ce3eca4 | 249 | |
1da177e4 LT |
250 | if(copy_from_user((void *)&f, arg, sizeof(struct fib_ioctl))) |
251 | return -EFAULT; | |
252 | /* | |
253 | * Verify that the HANDLE passed in was a valid AdapterFibContext | |
254 | * | |
255 | * Search the list of AdapterFibContext addresses on the adapter | |
256 | * to be sure this is a valid address | |
257 | */ | |
5234e25c | 258 | spin_lock_irqsave(&dev->fib_lock, flags); |
1da177e4 LT |
259 | entry = dev->fib_list.next; |
260 | fibctx = NULL; | |
261 | ||
262 | while (entry != &dev->fib_list) { | |
263 | fibctx = list_entry(entry, struct aac_fib_context, next); | |
264 | /* | |
265 | * Extract the AdapterFibContext from the Input parameters. | |
266 | */ | |
5234e25c | 267 | if (fibctx->unique == f.fibctx) { /* We found a winner */ |
1da177e4 LT |
268 | break; |
269 | } | |
270 | entry = entry->next; | |
271 | fibctx = NULL; | |
272 | } | |
273 | if (!fibctx) { | |
5234e25c | 274 | spin_unlock_irqrestore(&dev->fib_lock, flags); |
1da177e4 LT |
275 | dprintk ((KERN_INFO "Fib Context not found\n")); |
276 | return -EINVAL; | |
277 | } | |
278 | ||
279 | if((fibctx->type != FSAFS_NTC_GET_ADAPTER_FIB_CONTEXT) || | |
280 | (fibctx->size != sizeof(struct aac_fib_context))) { | |
5234e25c | 281 | spin_unlock_irqrestore(&dev->fib_lock, flags); |
1da177e4 LT |
282 | dprintk ((KERN_INFO "Fib Context corrupt?\n")); |
283 | return -EINVAL; | |
284 | } | |
285 | status = 0; | |
1da177e4 LT |
286 | /* |
287 | * If there are no fibs to send back, then either wait or return | |
288 | * -EAGAIN | |
289 | */ | |
290 | return_fib: | |
291 | if (!list_empty(&fibctx->fib_list)) { | |
1da177e4 LT |
292 | /* |
293 | * Pull the next fib from the fibs | |
294 | */ | |
295 | entry = fibctx->fib_list.next; | |
296 | list_del(entry); | |
8ce3eca4 | 297 | |
1da177e4 LT |
298 | fib = list_entry(entry, struct fib, fiblink); |
299 | fibctx->count--; | |
300 | spin_unlock_irqrestore(&dev->fib_lock, flags); | |
a8166a52 MH |
301 | if (copy_to_user(f.fib, fib->hw_fib_va, sizeof(struct hw_fib))) { |
302 | kfree(fib->hw_fib_va); | |
1da177e4 LT |
303 | kfree(fib); |
304 | return -EFAULT; | |
8ce3eca4 | 305 | } |
1da177e4 LT |
306 | /* |
307 | * Free the space occupied by this copy of the fib. | |
308 | */ | |
a8166a52 | 309 | kfree(fib->hw_fib_va); |
1da177e4 LT |
310 | kfree(fib); |
311 | status = 0; | |
1da177e4 LT |
312 | } else { |
313 | spin_unlock_irqrestore(&dev->fib_lock, flags); | |
dc4adbf4 MH |
314 | /* If someone killed the AIF aacraid thread, restart it */ |
315 | status = !dev->aif_thread; | |
8c867b25 | 316 | if (status && !dev->in_reset && dev->queues && dev->fsa_dev) { |
dc4adbf4 MH |
317 | /* Be paranoid, be very paranoid! */ |
318 | kthread_stop(dev->thread); | |
319 | ssleep(1); | |
320 | dev->aif_thread = 0; | |
f170168b KC |
321 | dev->thread = kthread_run(aac_command_thread, dev, |
322 | "%s", dev->name); | |
dc4adbf4 MH |
323 | ssleep(1); |
324 | } | |
1da177e4 LT |
325 | if (f.wait) { |
326 | if(down_interruptible(&fibctx->wait_sem) < 0) { | |
cacb6dc3 | 327 | status = -ERESTARTSYS; |
1da177e4 LT |
328 | } else { |
329 | /* Lock again and retry */ | |
330 | spin_lock_irqsave(&dev->fib_lock, flags); | |
331 | goto return_fib; | |
332 | } | |
333 | } else { | |
334 | status = -EAGAIN; | |
8ce3eca4 | 335 | } |
1da177e4 | 336 | } |
12a26d08 | 337 | fibctx->jiffies = jiffies/HZ; |
1da177e4 LT |
338 | return status; |
339 | } | |
340 | ||
341 | int aac_close_fib_context(struct aac_dev * dev, struct aac_fib_context * fibctx) | |
342 | { | |
343 | struct fib *fib; | |
344 | ||
345 | /* | |
346 | * First free any FIBs that have not been consumed. | |
347 | */ | |
348 | while (!list_empty(&fibctx->fib_list)) { | |
349 | struct list_head * entry; | |
350 | /* | |
351 | * Pull the next fib from the fibs | |
352 | */ | |
353 | entry = fibctx->fib_list.next; | |
354 | list_del(entry); | |
355 | fib = list_entry(entry, struct fib, fiblink); | |
356 | fibctx->count--; | |
357 | /* | |
358 | * Free the space occupied by this copy of the fib. | |
359 | */ | |
a8166a52 | 360 | kfree(fib->hw_fib_va); |
1da177e4 LT |
361 | kfree(fib); |
362 | } | |
363 | /* | |
364 | * Remove the Context from the AdapterFibContext List | |
365 | */ | |
366 | list_del(&fibctx->next); | |
367 | /* | |
368 | * Invalidate context | |
369 | */ | |
370 | fibctx->type = 0; | |
371 | /* | |
372 | * Free the space occupied by the Context | |
373 | */ | |
374 | kfree(fibctx); | |
375 | return 0; | |
376 | } | |
377 | ||
378 | /** | |
379 | * close_getadapter_fib - close down user fib context | |
380 | * @dev: adapter | |
381 | * @arg: ioctl arguments | |
382 | * | |
383 | * This routine will close down the fibctx passed in from the user. | |
384 | */ | |
8ce3eca4 | 385 | |
1da177e4 LT |
386 | static int close_getadapter_fib(struct aac_dev * dev, void __user *arg) |
387 | { | |
388 | struct aac_fib_context *fibctx; | |
389 | int status; | |
390 | unsigned long flags; | |
391 | struct list_head * entry; | |
392 | ||
393 | /* | |
394 | * Verify that the HANDLE passed in was a valid AdapterFibContext | |
395 | * | |
396 | * Search the list of AdapterFibContext addresses on the adapter | |
397 | * to be sure this is a valid address | |
398 | */ | |
399 | ||
400 | entry = dev->fib_list.next; | |
401 | fibctx = NULL; | |
402 | ||
403 | while(entry != &dev->fib_list) { | |
404 | fibctx = list_entry(entry, struct aac_fib_context, next); | |
405 | /* | |
406 | * Extract the fibctx from the input parameters | |
407 | */ | |
142956af | 408 | if (fibctx->unique == (u32)(uintptr_t)arg) /* We found a winner */ |
1da177e4 | 409 | break; |
1da177e4 LT |
410 | entry = entry->next; |
411 | fibctx = NULL; | |
412 | } | |
413 | ||
414 | if (!fibctx) | |
415 | return 0; /* Already gone */ | |
416 | ||
417 | if((fibctx->type != FSAFS_NTC_GET_ADAPTER_FIB_CONTEXT) || | |
418 | (fibctx->size != sizeof(struct aac_fib_context))) | |
419 | return -EINVAL; | |
420 | spin_lock_irqsave(&dev->fib_lock, flags); | |
421 | status = aac_close_fib_context(dev, fibctx); | |
422 | spin_unlock_irqrestore(&dev->fib_lock, flags); | |
423 | return status; | |
424 | } | |
425 | ||
426 | /** | |
427 | * check_revision - close down user fib context | |
428 | * @dev: adapter | |
429 | * @arg: ioctl arguments | |
430 | * | |
431 | * This routine returns the driver version. | |
5234e25c SM |
432 | * Under Linux, there have been no version incompatibilities, so this is |
433 | * simple! | |
1da177e4 LT |
434 | */ |
435 | ||
436 | static int check_revision(struct aac_dev *dev, void __user *arg) | |
437 | { | |
438 | struct revision response; | |
c7f47602 MH |
439 | char *driver_version = aac_driver_version; |
440 | u32 version; | |
441 | ||
9f30a323 | 442 | response.compat = 1; |
8ce3eca4 | 443 | version = (simple_strtol(driver_version, |
c7f47602 MH |
444 | &driver_version, 10) << 24) | 0x00000400; |
445 | version += simple_strtol(driver_version + 1, &driver_version, 10) << 16; | |
446 | version += simple_strtol(driver_version + 1, NULL, 10); | |
447 | response.version = cpu_to_le32(version); | |
8ce3eca4 | 448 | # ifdef AAC_DRIVER_BUILD |
c7f47602 MH |
449 | response.build = cpu_to_le32(AAC_DRIVER_BUILD); |
450 | # else | |
451 | response.build = cpu_to_le32(9999); | |
452 | # endif | |
1da177e4 LT |
453 | |
454 | if (copy_to_user(arg, &response, sizeof(response))) | |
455 | return -EFAULT; | |
456 | return 0; | |
457 | } | |
458 | ||
7c00ffa3 | 459 | |
1da177e4 LT |
460 | /** |
461 | * | |
462 | * aac_send_raw_scb | |
463 | * | |
464 | */ | |
465 | ||
4833869e | 466 | static int aac_send_raw_srb(struct aac_dev* dev, void __user * arg) |
1da177e4 LT |
467 | { |
468 | struct fib* srbfib; | |
469 | int status; | |
56b58712 MH |
470 | struct aac_srb *srbcmd = NULL; |
471 | struct user_aac_srb *user_srbcmd = NULL; | |
472 | struct user_aac_srb __user *user_srb = arg; | |
1da177e4 LT |
473 | struct aac_srb_reply __user *user_reply; |
474 | struct aac_srb_reply* reply; | |
475 | u32 fibsize = 0; | |
476 | u32 flags = 0; | |
477 | s32 rcode = 0; | |
478 | u32 data_dir; | |
479 | void __user *sg_user[32]; | |
480 | void *sg_list[32]; | |
5234e25c | 481 | u32 sg_indx = 0; |
1da177e4 | 482 | u32 byte_count = 0; |
f2b1a06a | 483 | u32 actual_fibsize64, actual_fibsize = 0; |
1da177e4 LT |
484 | int i; |
485 | ||
486 | ||
33bb3b29 MH |
487 | if (dev->in_reset) { |
488 | dprintk((KERN_DEBUG"aacraid: send raw srb -EBUSY\n")); | |
489 | return -EBUSY; | |
490 | } | |
1da177e4 | 491 | if (!capable(CAP_SYS_ADMIN)){ |
8ce3eca4 | 492 | dprintk((KERN_DEBUG"aacraid: No permission to send raw srb\n")); |
1da177e4 LT |
493 | return -EPERM; |
494 | } | |
495 | /* | |
f2b1a06a | 496 | * Allocate and initialize a Fib then setup a SRB command |
1da177e4 | 497 | */ |
bfb35aa8 | 498 | if (!(srbfib = aac_fib_alloc(dev))) { |
5d497cec | 499 | return -ENOMEM; |
1da177e4 | 500 | } |
bfb35aa8 | 501 | aac_fib_init(srbfib); |
85d22bbf MR |
502 | /* raw_srb FIB is not FastResponseCapable */ |
503 | srbfib->hw_fib_va->header.XferState &= ~cpu_to_le32(FastResponseCapable); | |
1da177e4 LT |
504 | |
505 | srbcmd = (struct aac_srb*) fib_data(srbfib); | |
506 | ||
7c00ffa3 | 507 | memset(sg_list, 0, sizeof(sg_list)); /* cleanup may take issue */ |
1da177e4 | 508 | if(copy_from_user(&fibsize, &user_srb->count,sizeof(u32))){ |
8ce3eca4 | 509 | dprintk((KERN_DEBUG"aacraid: Could not copy data size from user\n")); |
1da177e4 LT |
510 | rcode = -EFAULT; |
511 | goto cleanup; | |
512 | } | |
513 | ||
b4789b8e MR |
514 | if ((fibsize < (sizeof(struct user_aac_srb) - sizeof(struct user_sgentry))) || |
515 | (fibsize > (dev->max_fib_size - sizeof(struct aac_fibhdr)))) { | |
1da177e4 LT |
516 | rcode = -EINVAL; |
517 | goto cleanup; | |
518 | } | |
519 | ||
4645df10 | 520 | user_srbcmd = kmalloc(fibsize, GFP_KERNEL); |
7c00ffa3 MH |
521 | if (!user_srbcmd) { |
522 | dprintk((KERN_DEBUG"aacraid: Could not make a copy of the srb\n")); | |
523 | rcode = -ENOMEM; | |
524 | goto cleanup; | |
525 | } | |
56b58712 | 526 | if(copy_from_user(user_srbcmd, user_srb,fibsize)){ |
8ce3eca4 | 527 | dprintk((KERN_DEBUG"aacraid: Could not copy srb from user\n")); |
1da177e4 LT |
528 | rcode = -EFAULT; |
529 | goto cleanup; | |
530 | } | |
531 | ||
532 | user_reply = arg+fibsize; | |
533 | ||
56b58712 | 534 | flags = user_srbcmd->flags; /* from user in cpu order */ |
1da177e4 | 535 | // Fix up srb for endian and force some values |
56b58712 | 536 | |
1da177e4 | 537 | srbcmd->function = cpu_to_le32(SRBF_ExecuteScsi); // Force this |
5234e25c | 538 | srbcmd->channel = cpu_to_le32(user_srbcmd->channel); |
7c00ffa3 | 539 | srbcmd->id = cpu_to_le32(user_srbcmd->id); |
5234e25c SM |
540 | srbcmd->lun = cpu_to_le32(user_srbcmd->lun); |
541 | srbcmd->timeout = cpu_to_le32(user_srbcmd->timeout); | |
542 | srbcmd->flags = cpu_to_le32(flags); | |
5d497cec | 543 | srbcmd->retry_limit = 0; // Obsolete parameter |
56b58712 | 544 | srbcmd->cdb_size = cpu_to_le32(user_srbcmd->cdb_size); |
5d497cec | 545 | memcpy(srbcmd->cdb, user_srbcmd->cdb, sizeof(srbcmd->cdb)); |
8ce3eca4 | 546 | |
56b58712 | 547 | switch (flags & (SRB_DataIn | SRB_DataOut)) { |
1da177e4 LT |
548 | case SRB_DataOut: |
549 | data_dir = DMA_TO_DEVICE; | |
550 | break; | |
551 | case (SRB_DataIn | SRB_DataOut): | |
552 | data_dir = DMA_BIDIRECTIONAL; | |
553 | break; | |
554 | case SRB_DataIn: | |
555 | data_dir = DMA_FROM_DEVICE; | |
556 | break; | |
557 | default: | |
558 | data_dir = DMA_NONE; | |
559 | } | |
6391a113 | 560 | if (user_srbcmd->sg.count > ARRAY_SIZE(sg_list)) { |
7c00ffa3 MH |
561 | dprintk((KERN_DEBUG"aacraid: too many sg entries %d\n", |
562 | le32_to_cpu(srbcmd->sg.count))); | |
563 | rcode = -EINVAL; | |
564 | goto cleanup; | |
565 | } | |
f2b1a06a MH |
566 | actual_fibsize = sizeof(struct aac_srb) - sizeof(struct sgentry) + |
567 | ((user_srbcmd->sg.count & 0xff) * sizeof(struct sgentry)); | |
568 | actual_fibsize64 = actual_fibsize + (user_srbcmd->sg.count & 0xff) * | |
569 | (sizeof(struct sgentry64) - sizeof(struct sgentry)); | |
570 | /* User made a mistake - should not continue */ | |
571 | if ((actual_fibsize != fibsize) && (actual_fibsize64 != fibsize)) { | |
572 | dprintk((KERN_DEBUG"aacraid: Bad Size specified in " | |
573 | "Raw SRB command calculated fibsize=%lu;%lu " | |
574 | "user_srbcmd->sg.count=%d aac_srb=%lu sgentry=%lu;%lu " | |
575 | "issued fibsize=%d\n", | |
576 | actual_fibsize, actual_fibsize64, user_srbcmd->sg.count, | |
577 | sizeof(struct aac_srb), sizeof(struct sgentry), | |
578 | sizeof(struct sgentry64), fibsize)); | |
579 | rcode = -EINVAL; | |
580 | goto cleanup; | |
581 | } | |
582 | if ((data_dir == DMA_NONE) && user_srbcmd->sg.count) { | |
583 | dprintk((KERN_DEBUG"aacraid: SG with no direction specified in Raw SRB command\n")); | |
584 | rcode = -EINVAL; | |
585 | goto cleanup; | |
586 | } | |
587 | byte_count = 0; | |
588 | if (dev->adapter_info.options & AAC_OPT_SGMAP_HOST64) { | |
56b58712 | 589 | struct user_sgmap64* upsg = (struct user_sgmap64*)&user_srbcmd->sg; |
84e29308 | 590 | struct sgmap64* psg = (struct sgmap64*)&srbcmd->sg; |
1da177e4 LT |
591 | |
592 | /* | |
593 | * This should also catch if user used the 32 bit sgmap | |
594 | */ | |
f2b1a06a MH |
595 | if (actual_fibsize64 == fibsize) { |
596 | actual_fibsize = actual_fibsize64; | |
597 | for (i = 0; i < upsg->count; i++) { | |
598 | u64 addr; | |
599 | void* p; | |
09050715 | 600 | if (upsg->sg[i].count > |
cacb6dc3 | 601 | ((dev->adapter_info.options & |
09050715 MS |
602 | AAC_OPT_NEW_COMM) ? |
603 | (dev->scsi_host_ptr->max_sectors << 9) : | |
cacb6dc3 | 604 | 65536)) { |
09050715 MS |
605 | rcode = -EINVAL; |
606 | goto cleanup; | |
607 | } | |
f2b1a06a MH |
608 | /* Does this really need to be GFP_DMA? */ |
609 | p = kmalloc(upsg->sg[i].count,GFP_KERNEL|__GFP_DMA); | |
6dcd4a7f | 610 | if(!p) { |
f2b1a06a MH |
611 | dprintk((KERN_DEBUG"aacraid: Could not allocate SG buffer - size = %d buffer number %d of %d\n", |
612 | upsg->sg[i].count,i,upsg->count)); | |
613 | rcode = -ENOMEM; | |
614 | goto cleanup; | |
615 | } | |
616 | addr = (u64)upsg->sg[i].addr[0]; | |
617 | addr += ((u64)upsg->sg[i].addr[1]) << 32; | |
142956af | 618 | sg_user[i] = (void __user *)(uintptr_t)addr; |
f2b1a06a MH |
619 | sg_list[i] = p; // save so we can clean up later |
620 | sg_indx = i; | |
621 | ||
8ce3eca4 | 622 | if (flags & SRB_DataOut) { |
f2b1a06a MH |
623 | if(copy_from_user(p,sg_user[i],upsg->sg[i].count)){ |
624 | dprintk((KERN_DEBUG"aacraid: Could not copy sg data from user\n")); | |
625 | rcode = -EFAULT; | |
626 | goto cleanup; | |
627 | } | |
628 | } | |
629 | addr = pci_map_single(dev->pdev, p, upsg->sg[i].count, data_dir); | |
1da177e4 | 630 | |
f2b1a06a MH |
631 | psg->sg[i].addr[0] = cpu_to_le32(addr & 0xffffffff); |
632 | psg->sg[i].addr[1] = cpu_to_le32(addr>>32); | |
633 | byte_count += upsg->sg[i].count; | |
634 | psg->sg[i].count = cpu_to_le32(upsg->sg[i].count); | |
635 | } | |
636 | } else { | |
637 | struct user_sgmap* usg; | |
22e9f5a6 MFW |
638 | usg = kmemdup(upsg, |
639 | actual_fibsize - sizeof(struct aac_srb) | |
640 | + sizeof(struct sgmap), GFP_KERNEL); | |
f2b1a06a MH |
641 | if (!usg) { |
642 | dprintk((KERN_DEBUG"aacraid: Allocation error in Raw SRB command\n")); | |
1da177e4 LT |
643 | rcode = -ENOMEM; |
644 | goto cleanup; | |
645 | } | |
f2b1a06a MH |
646 | actual_fibsize = actual_fibsize64; |
647 | ||
648 | for (i = 0; i < usg->count; i++) { | |
649 | u64 addr; | |
650 | void* p; | |
09050715 | 651 | if (usg->sg[i].count > |
cacb6dc3 | 652 | ((dev->adapter_info.options & |
09050715 MS |
653 | AAC_OPT_NEW_COMM) ? |
654 | (dev->scsi_host_ptr->max_sectors << 9) : | |
cacb6dc3 | 655 | 65536)) { |
7dd72f51 | 656 | kfree(usg); |
09050715 MS |
657 | rcode = -EINVAL; |
658 | goto cleanup; | |
659 | } | |
f2b1a06a MH |
660 | /* Does this really need to be GFP_DMA? */ |
661 | p = kmalloc(usg->sg[i].count,GFP_KERNEL|__GFP_DMA); | |
6dcd4a7f | 662 | if(!p) { |
8a52da63 | 663 | dprintk((KERN_DEBUG "aacraid: Could not allocate SG buffer - size = %d buffer number %d of %d\n", |
f2b1a06a | 664 | usg->sg[i].count,i,usg->count)); |
8a52da63 | 665 | kfree(usg); |
f2b1a06a | 666 | rcode = -ENOMEM; |
1da177e4 LT |
667 | goto cleanup; |
668 | } | |
142956af | 669 | sg_user[i] = (void __user *)(uintptr_t)usg->sg[i].addr; |
f2b1a06a MH |
670 | sg_list[i] = p; // save so we can clean up later |
671 | sg_indx = i; | |
672 | ||
8ce3eca4 | 673 | if (flags & SRB_DataOut) { |
f2b1a06a MH |
674 | if(copy_from_user(p,sg_user[i],upsg->sg[i].count)){ |
675 | kfree (usg); | |
676 | dprintk((KERN_DEBUG"aacraid: Could not copy sg data from user\n")); | |
677 | rcode = -EFAULT; | |
678 | goto cleanup; | |
679 | } | |
680 | } | |
681 | addr = pci_map_single(dev->pdev, p, usg->sg[i].count, data_dir); | |
1da177e4 | 682 | |
f2b1a06a MH |
683 | psg->sg[i].addr[0] = cpu_to_le32(addr & 0xffffffff); |
684 | psg->sg[i].addr[1] = cpu_to_le32(addr>>32); | |
685 | byte_count += usg->sg[i].count; | |
686 | psg->sg[i].count = cpu_to_le32(usg->sg[i].count); | |
687 | } | |
688 | kfree (usg); | |
1da177e4 | 689 | } |
1da177e4 | 690 | srbcmd->count = cpu_to_le32(byte_count); |
2f5d1f79 MR |
691 | if (user_srbcmd->sg.count) |
692 | psg->count = cpu_to_le32(sg_indx+1); | |
693 | else | |
694 | psg->count = 0; | |
bfb35aa8 | 695 | status = aac_fib_send(ScsiPortCommand64, srbfib, actual_fibsize, FsaNormal, 1, 1,NULL,NULL); |
1da177e4 | 696 | } else { |
56b58712 | 697 | struct user_sgmap* upsg = &user_srbcmd->sg; |
1da177e4 | 698 | struct sgmap* psg = &srbcmd->sg; |
f2b1a06a MH |
699 | |
700 | if (actual_fibsize64 == fibsize) { | |
701 | struct user_sgmap64* usg = (struct user_sgmap64 *)upsg; | |
702 | for (i = 0; i < upsg->count; i++) { | |
142956af | 703 | uintptr_t addr; |
f2b1a06a | 704 | void* p; |
09050715 | 705 | if (usg->sg[i].count > |
cacb6dc3 | 706 | ((dev->adapter_info.options & |
09050715 MS |
707 | AAC_OPT_NEW_COMM) ? |
708 | (dev->scsi_host_ptr->max_sectors << 9) : | |
cacb6dc3 | 709 | 65536)) { |
09050715 MS |
710 | rcode = -EINVAL; |
711 | goto cleanup; | |
712 | } | |
f2b1a06a MH |
713 | /* Does this really need to be GFP_DMA? */ |
714 | p = kmalloc(usg->sg[i].count,GFP_KERNEL|__GFP_DMA); | |
6dcd4a7f | 715 | if(!p) { |
f2b1a06a MH |
716 | dprintk((KERN_DEBUG"aacraid: Could not allocate SG buffer - size = %d buffer number %d of %d\n", |
717 | usg->sg[i].count,i,usg->count)); | |
718 | rcode = -ENOMEM; | |
1da177e4 LT |
719 | goto cleanup; |
720 | } | |
f2b1a06a MH |
721 | addr = (u64)usg->sg[i].addr[0]; |
722 | addr += ((u64)usg->sg[i].addr[1]) << 32; | |
142956af | 723 | sg_user[i] = (void __user *)addr; |
f2b1a06a MH |
724 | sg_list[i] = p; // save so we can clean up later |
725 | sg_indx = i; | |
726 | ||
8ce3eca4 | 727 | if (flags & SRB_DataOut) { |
f2b1a06a MH |
728 | if(copy_from_user(p,sg_user[i],usg->sg[i].count)){ |
729 | dprintk((KERN_DEBUG"aacraid: Could not copy sg data from user\n")); | |
730 | rcode = -EFAULT; | |
731 | goto cleanup; | |
732 | } | |
733 | } | |
734 | addr = pci_map_single(dev->pdev, p, usg->sg[i].count, data_dir); | |
735 | ||
736 | psg->sg[i].addr = cpu_to_le32(addr & 0xffffffff); | |
737 | byte_count += usg->sg[i].count; | |
738 | psg->sg[i].count = cpu_to_le32(usg->sg[i].count); | |
1da177e4 | 739 | } |
f2b1a06a MH |
740 | } else { |
741 | for (i = 0; i < upsg->count; i++) { | |
742 | dma_addr_t addr; | |
743 | void* p; | |
09050715 | 744 | if (upsg->sg[i].count > |
cacb6dc3 | 745 | ((dev->adapter_info.options & |
09050715 MS |
746 | AAC_OPT_NEW_COMM) ? |
747 | (dev->scsi_host_ptr->max_sectors << 9) : | |
cacb6dc3 | 748 | 65536)) { |
09050715 MS |
749 | rcode = -EINVAL; |
750 | goto cleanup; | |
751 | } | |
f2b1a06a | 752 | p = kmalloc(upsg->sg[i].count, GFP_KERNEL); |
6dcd4a7f | 753 | if (!p) { |
f2b1a06a MH |
754 | dprintk((KERN_DEBUG"aacraid: Could not allocate SG buffer - size = %d buffer number %d of %d\n", |
755 | upsg->sg[i].count, i, upsg->count)); | |
756 | rcode = -ENOMEM; | |
757 | goto cleanup; | |
758 | } | |
142956af | 759 | sg_user[i] = (void __user *)(uintptr_t)upsg->sg[i].addr; |
f2b1a06a MH |
760 | sg_list[i] = p; // save so we can clean up later |
761 | sg_indx = i; | |
762 | ||
8ce3eca4 | 763 | if (flags & SRB_DataOut) { |
f2b1a06a MH |
764 | if(copy_from_user(p, sg_user[i], |
765 | upsg->sg[i].count)) { | |
766 | dprintk((KERN_DEBUG"aacraid: Could not copy sg data from user\n")); | |
767 | rcode = -EFAULT; | |
768 | goto cleanup; | |
769 | } | |
770 | } | |
771 | addr = pci_map_single(dev->pdev, p, | |
772 | upsg->sg[i].count, data_dir); | |
1da177e4 | 773 | |
f2b1a06a MH |
774 | psg->sg[i].addr = cpu_to_le32(addr); |
775 | byte_count += upsg->sg[i].count; | |
776 | psg->sg[i].count = cpu_to_le32(upsg->sg[i].count); | |
777 | } | |
1da177e4 LT |
778 | } |
779 | srbcmd->count = cpu_to_le32(byte_count); | |
2f5d1f79 MR |
780 | if (user_srbcmd->sg.count) |
781 | psg->count = cpu_to_le32(sg_indx+1); | |
782 | else | |
783 | psg->count = 0; | |
bfb35aa8 | 784 | status = aac_fib_send(ScsiPortCommand, srbfib, actual_fibsize, FsaNormal, 1, 1, NULL, NULL); |
1da177e4 | 785 | } |
cacb6dc3 PNRCEH |
786 | if (status == -ERESTARTSYS) { |
787 | rcode = -ERESTARTSYS; | |
c8f7b073 MH |
788 | goto cleanup; |
789 | } | |
1da177e4 LT |
790 | |
791 | if (status != 0){ | |
8ce3eca4 | 792 | dprintk((KERN_DEBUG"aacraid: Could not send raw srb fib to hba\n")); |
5d497cec | 793 | rcode = -ENXIO; |
1da177e4 LT |
794 | goto cleanup; |
795 | } | |
796 | ||
8ce3eca4 | 797 | if (flags & SRB_DataIn) { |
1da177e4 | 798 | for(i = 0 ; i <= sg_indx; i++){ |
f2b1a06a MH |
799 | byte_count = le32_to_cpu( |
800 | (dev->adapter_info.options & AAC_OPT_SGMAP_HOST64) | |
7c00ffa3 MH |
801 | ? ((struct sgmap64*)&srbcmd->sg)->sg[i].count |
802 | : srbcmd->sg.sg[i].count); | |
803 | if(copy_to_user(sg_user[i], sg_list[i], byte_count)){ | |
8ce3eca4 | 804 | dprintk((KERN_DEBUG"aacraid: Could not copy sg data to user\n")); |
1da177e4 LT |
805 | rcode = -EFAULT; |
806 | goto cleanup; | |
807 | ||
808 | } | |
809 | } | |
810 | } | |
811 | ||
812 | reply = (struct aac_srb_reply *) fib_data(srbfib); | |
813 | if(copy_to_user(user_reply,reply,sizeof(struct aac_srb_reply))){ | |
8ce3eca4 | 814 | dprintk((KERN_DEBUG"aacraid: Could not copy reply to user\n")); |
1da177e4 LT |
815 | rcode = -EFAULT; |
816 | goto cleanup; | |
817 | } | |
818 | ||
819 | cleanup: | |
56b58712 | 820 | kfree(user_srbcmd); |
1da177e4 LT |
821 | for(i=0; i <= sg_indx; i++){ |
822 | kfree(sg_list[i]); | |
823 | } | |
cacb6dc3 | 824 | if (rcode != -ERESTARTSYS) { |
c8f7b073 MH |
825 | aac_fib_complete(srbfib); |
826 | aac_fib_free(srbfib); | |
827 | } | |
1da177e4 LT |
828 | |
829 | return rcode; | |
830 | } | |
831 | ||
1da177e4 | 832 | struct aac_pci_info { |
8ce3eca4 SM |
833 | u32 bus; |
834 | u32 slot; | |
1da177e4 LT |
835 | }; |
836 | ||
837 | ||
4833869e | 838 | static int aac_get_pci_info(struct aac_dev* dev, void __user *arg) |
1da177e4 | 839 | { |
8ce3eca4 | 840 | struct aac_pci_info pci_info; |
1da177e4 LT |
841 | |
842 | pci_info.bus = dev->pdev->bus->number; | |
843 | pci_info.slot = PCI_SLOT(dev->pdev->devfn); | |
844 | ||
5234e25c SM |
845 | if (copy_to_user(arg, &pci_info, sizeof(struct aac_pci_info))) { |
846 | dprintk((KERN_DEBUG "aacraid: Could not copy pci info\n")); | |
847 | return -EFAULT; | |
1da177e4 | 848 | } |
8ce3eca4 | 849 | return 0; |
7c00ffa3 | 850 | } |
8ce3eca4 | 851 | |
1da177e4 LT |
852 | |
853 | int aac_do_ioctl(struct aac_dev * dev, int cmd, void __user *arg) | |
854 | { | |
855 | int status; | |
8ce3eca4 | 856 | |
222a9fb3 RAR |
857 | mutex_lock(&dev->ioctl_mutex); |
858 | ||
fbd18598 RAR |
859 | if (dev->adapter_shutdown) { |
860 | status = -EACCES; | |
861 | goto cleanup; | |
862 | } | |
863 | ||
1da177e4 LT |
864 | /* |
865 | * HBA gets first crack | |
866 | */ | |
8ce3eca4 | 867 | |
1da177e4 | 868 | status = aac_dev_ioctl(dev, cmd, arg); |
cacb6dc3 | 869 | if (status != -ENOTTY) |
222a9fb3 | 870 | goto cleanup; |
1da177e4 LT |
871 | |
872 | switch (cmd) { | |
873 | case FSACTL_MINIPORT_REV_CHECK: | |
874 | status = check_revision(dev, arg); | |
875 | break; | |
7c00ffa3 | 876 | case FSACTL_SEND_LARGE_FIB: |
1da177e4 LT |
877 | case FSACTL_SENDFIB: |
878 | status = ioctl_send_fib(dev, arg); | |
879 | break; | |
880 | case FSACTL_OPEN_GET_ADAPTER_FIB: | |
881 | status = open_getadapter_fib(dev, arg); | |
882 | break; | |
883 | case FSACTL_GET_NEXT_ADAPTER_FIB: | |
884 | status = next_getadapter_fib(dev, arg); | |
885 | break; | |
886 | case FSACTL_CLOSE_GET_ADAPTER_FIB: | |
887 | status = close_getadapter_fib(dev, arg); | |
888 | break; | |
889 | case FSACTL_SEND_RAW_SRB: | |
890 | status = aac_send_raw_srb(dev,arg); | |
891 | break; | |
892 | case FSACTL_GET_PCI_INFO: | |
893 | status = aac_get_pci_info(dev,arg); | |
894 | break; | |
895 | default: | |
896 | status = -ENOTTY; | |
8ce3eca4 | 897 | break; |
1da177e4 | 898 | } |
222a9fb3 RAR |
899 | |
900 | cleanup: | |
901 | mutex_unlock(&dev->ioctl_mutex); | |
902 | ||
1da177e4 LT |
903 | return status; |
904 | } | |
905 |