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1da177e4 LT |
1 | /* |
2 | * Adaptec AAC series RAID controller driver | |
3 | * (c) Copyright 2001 Red Hat Inc. <alan@redhat.com> | |
4 | * | |
5 | * based on the old aacraid driver that is.. | |
6 | * Adaptec aacraid device driver for Linux. | |
7 | * | |
f2b1a06a | 8 | * Copyright (c) 2000-2007 Adaptec, Inc. (aacraid@adaptec.com) |
1da177e4 LT |
9 | * |
10 | * This program is free software; you can redistribute it and/or modify | |
11 | * it under the terms of the GNU General Public License as published by | |
12 | * the Free Software Foundation; either version 2, or (at your option) | |
13 | * any later version. | |
14 | * | |
15 | * This program is distributed in the hope that it will be useful, | |
16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | * GNU General Public License for more details. | |
19 | * | |
20 | * You should have received a copy of the GNU General Public License | |
21 | * along with this program; see the file COPYING. If not, write to | |
22 | * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. | |
23 | * | |
24 | * Module Name: | |
25 | * commctrl.c | |
26 | * | |
27 | * Abstract: Contains all routines for control of the AFA comm layer | |
28 | * | |
29 | */ | |
30 | ||
31 | #include <linux/kernel.h> | |
32 | #include <linux/init.h> | |
33 | #include <linux/types.h> | |
1da177e4 LT |
34 | #include <linux/pci.h> |
35 | #include <linux/spinlock.h> | |
36 | #include <linux/slab.h> | |
37 | #include <linux/completion.h> | |
38 | #include <linux/dma-mapping.h> | |
39 | #include <linux/blkdev.h> | |
c8f7b073 | 40 | #include <linux/delay.h> /* ssleep prototype */ |
dc4adbf4 | 41 | #include <linux/kthread.h> |
6188e10d | 42 | #include <linux/semaphore.h> |
1da177e4 | 43 | #include <asm/uaccess.h> |
09050715 | 44 | #include <scsi/scsi_host.h> |
1da177e4 LT |
45 | |
46 | #include "aacraid.h" | |
47 | ||
48 | /** | |
49 | * ioctl_send_fib - send a FIB from userspace | |
50 | * @dev: adapter is being processed | |
51 | * @arg: arguments to the ioctl call | |
8ce3eca4 | 52 | * |
1da177e4 LT |
53 | * This routine sends a fib to the adapter on behalf of a user level |
54 | * program. | |
55 | */ | |
7c00ffa3 MH |
56 | # define AAC_DEBUG_PREAMBLE KERN_INFO |
57 | # define AAC_DEBUG_POSTAMBLE | |
8ce3eca4 | 58 | |
1da177e4 LT |
59 | static int ioctl_send_fib(struct aac_dev * dev, void __user *arg) |
60 | { | |
61 | struct hw_fib * kfib; | |
62 | struct fib *fibptr; | |
7c00ffa3 MH |
63 | struct hw_fib * hw_fib = (struct hw_fib *)0; |
64 | dma_addr_t hw_fib_pa = (dma_addr_t)0LL; | |
65 | unsigned size; | |
66 | int retval; | |
1da177e4 | 67 | |
33bb3b29 MH |
68 | if (dev->in_reset) { |
69 | return -EBUSY; | |
70 | } | |
bfb35aa8 | 71 | fibptr = aac_fib_alloc(dev); |
7c00ffa3 | 72 | if(fibptr == NULL) { |
1da177e4 | 73 | return -ENOMEM; |
7c00ffa3 | 74 | } |
8ce3eca4 | 75 | |
a8166a52 | 76 | kfib = fibptr->hw_fib_va; |
1da177e4 LT |
77 | /* |
78 | * First copy in the header so that we can check the size field. | |
79 | */ | |
80 | if (copy_from_user((void *)kfib, arg, sizeof(struct aac_fibhdr))) { | |
bfb35aa8 | 81 | aac_fib_free(fibptr); |
1da177e4 LT |
82 | return -EFAULT; |
83 | } | |
84 | /* | |
85 | * Since we copy based on the fib header size, make sure that we | |
86 | * will not overrun the buffer when we copy the memory. Return | |
87 | * an error if we would. | |
88 | */ | |
7c00ffa3 MH |
89 | size = le16_to_cpu(kfib->header.Size) + sizeof(struct aac_fibhdr); |
90 | if (size < le16_to_cpu(kfib->header.SenderSize)) | |
91 | size = le16_to_cpu(kfib->header.SenderSize); | |
92 | if (size > dev->max_fib_size) { | |
6e289a90 MH |
93 | if (size > 2048) { |
94 | retval = -EINVAL; | |
95 | goto cleanup; | |
96 | } | |
7c00ffa3 | 97 | /* Highjack the hw_fib */ |
a8166a52 | 98 | hw_fib = fibptr->hw_fib_va; |
7c00ffa3 | 99 | hw_fib_pa = fibptr->hw_fib_pa; |
a8166a52 | 100 | fibptr->hw_fib_va = kfib = pci_alloc_consistent(dev->pdev, size, &fibptr->hw_fib_pa); |
7c00ffa3 MH |
101 | memset(((char *)kfib) + dev->max_fib_size, 0, size - dev->max_fib_size); |
102 | memcpy(kfib, hw_fib, dev->max_fib_size); | |
1da177e4 LT |
103 | } |
104 | ||
7c00ffa3 MH |
105 | if (copy_from_user(kfib, arg, size)) { |
106 | retval = -EFAULT; | |
107 | goto cleanup; | |
1da177e4 LT |
108 | } |
109 | ||
56b58712 | 110 | if (kfib->header.Command == cpu_to_le16(TakeABreakPt)) { |
1da177e4 LT |
111 | aac_adapter_interrupt(dev); |
112 | /* | |
8ce3eca4 | 113 | * Since we didn't really send a fib, zero out the state to allow |
1da177e4 LT |
114 | * cleanup code not to assert. |
115 | */ | |
116 | kfib->header.XferState = 0; | |
117 | } else { | |
bfb35aa8 | 118 | retval = aac_fib_send(le16_to_cpu(kfib->header.Command), fibptr, |
1da177e4 LT |
119 | le16_to_cpu(kfib->header.Size) , FsaNormal, |
120 | 1, 1, NULL, NULL); | |
121 | if (retval) { | |
7c00ffa3 | 122 | goto cleanup; |
1da177e4 | 123 | } |
bfb35aa8 | 124 | if (aac_fib_complete(fibptr) != 0) { |
7c00ffa3 MH |
125 | retval = -EINVAL; |
126 | goto cleanup; | |
1da177e4 LT |
127 | } |
128 | } | |
129 | /* | |
130 | * Make sure that the size returned by the adapter (which includes | |
131 | * the header) is less than or equal to the size of a fib, so we | |
132 | * don't corrupt application data. Then copy that size to the user | |
133 | * buffer. (Don't try to add the header information again, since it | |
134 | * was already included by the adapter.) | |
135 | */ | |
136 | ||
7c00ffa3 MH |
137 | retval = 0; |
138 | if (copy_to_user(arg, (void *)kfib, size)) | |
139 | retval = -EFAULT; | |
140 | cleanup: | |
141 | if (hw_fib) { | |
142 | pci_free_consistent(dev->pdev, size, kfib, fibptr->hw_fib_pa); | |
143 | fibptr->hw_fib_pa = hw_fib_pa; | |
a8166a52 | 144 | fibptr->hw_fib_va = hw_fib; |
1da177e4 | 145 | } |
c8f7b073 MH |
146 | if (retval != -EINTR) |
147 | aac_fib_free(fibptr); | |
7c00ffa3 | 148 | return retval; |
1da177e4 LT |
149 | } |
150 | ||
151 | /** | |
152 | * open_getadapter_fib - Get the next fib | |
153 | * | |
154 | * This routine will get the next Fib, if available, from the AdapterFibContext | |
155 | * passed in from the user. | |
156 | */ | |
157 | ||
158 | static int open_getadapter_fib(struct aac_dev * dev, void __user *arg) | |
159 | { | |
160 | struct aac_fib_context * fibctx; | |
161 | int status; | |
162 | ||
163 | fibctx = kmalloc(sizeof(struct aac_fib_context), GFP_KERNEL); | |
164 | if (fibctx == NULL) { | |
165 | status = -ENOMEM; | |
166 | } else { | |
167 | unsigned long flags; | |
168 | struct list_head * entry; | |
169 | struct aac_fib_context * context; | |
170 | ||
171 | fibctx->type = FSAFS_NTC_GET_ADAPTER_FIB_CONTEXT; | |
172 | fibctx->size = sizeof(struct aac_fib_context); | |
8ce3eca4 | 173 | /* |
1da177e4 LT |
174 | * Yes yes, I know this could be an index, but we have a |
175 | * better guarantee of uniqueness for the locked loop below. | |
176 | * Without the aid of a persistent history, this also helps | |
177 | * reduce the chance that the opaque context would be reused. | |
178 | */ | |
179 | fibctx->unique = (u32)((ulong)fibctx & 0xFFFFFFFF); | |
180 | /* | |
181 | * Initialize the mutex used to wait for the next AIF. | |
182 | */ | |
183 | init_MUTEX_LOCKED(&fibctx->wait_sem); | |
184 | fibctx->wait = 0; | |
185 | /* | |
186 | * Initialize the fibs and set the count of fibs on | |
187 | * the list to 0. | |
188 | */ | |
189 | fibctx->count = 0; | |
190 | INIT_LIST_HEAD(&fibctx->fib_list); | |
191 | fibctx->jiffies = jiffies/HZ; | |
192 | /* | |
8ce3eca4 | 193 | * Now add this context onto the adapter's |
1da177e4 LT |
194 | * AdapterFibContext list. |
195 | */ | |
196 | spin_lock_irqsave(&dev->fib_lock, flags); | |
197 | /* Ensure that we have a unique identifier */ | |
198 | entry = dev->fib_list.next; | |
199 | while (entry != &dev->fib_list) { | |
200 | context = list_entry(entry, struct aac_fib_context, next); | |
201 | if (context->unique == fibctx->unique) { | |
202 | /* Not unique (32 bits) */ | |
203 | fibctx->unique++; | |
204 | entry = dev->fib_list.next; | |
205 | } else { | |
206 | entry = entry->next; | |
207 | } | |
208 | } | |
209 | list_add_tail(&fibctx->next, &dev->fib_list); | |
210 | spin_unlock_irqrestore(&dev->fib_lock, flags); | |
8ce3eca4 | 211 | if (copy_to_user(arg, &fibctx->unique, |
1da177e4 LT |
212 | sizeof(fibctx->unique))) { |
213 | status = -EFAULT; | |
214 | } else { | |
215 | status = 0; | |
8ce3eca4 | 216 | } |
1da177e4 LT |
217 | } |
218 | return status; | |
219 | } | |
220 | ||
221 | /** | |
222 | * next_getadapter_fib - get the next fib | |
223 | * @dev: adapter to use | |
224 | * @arg: ioctl argument | |
8ce3eca4 SM |
225 | * |
226 | * This routine will get the next Fib, if available, from the AdapterFibContext | |
1da177e4 LT |
227 | * passed in from the user. |
228 | */ | |
229 | ||
230 | static int next_getadapter_fib(struct aac_dev * dev, void __user *arg) | |
231 | { | |
232 | struct fib_ioctl f; | |
233 | struct fib *fib; | |
234 | struct aac_fib_context *fibctx; | |
235 | int status; | |
236 | struct list_head * entry; | |
237 | unsigned long flags; | |
8ce3eca4 | 238 | |
1da177e4 LT |
239 | if(copy_from_user((void *)&f, arg, sizeof(struct fib_ioctl))) |
240 | return -EFAULT; | |
241 | /* | |
242 | * Verify that the HANDLE passed in was a valid AdapterFibContext | |
243 | * | |
244 | * Search the list of AdapterFibContext addresses on the adapter | |
245 | * to be sure this is a valid address | |
246 | */ | |
5234e25c | 247 | spin_lock_irqsave(&dev->fib_lock, flags); |
1da177e4 LT |
248 | entry = dev->fib_list.next; |
249 | fibctx = NULL; | |
250 | ||
251 | while (entry != &dev->fib_list) { | |
252 | fibctx = list_entry(entry, struct aac_fib_context, next); | |
253 | /* | |
254 | * Extract the AdapterFibContext from the Input parameters. | |
255 | */ | |
5234e25c | 256 | if (fibctx->unique == f.fibctx) { /* We found a winner */ |
1da177e4 LT |
257 | break; |
258 | } | |
259 | entry = entry->next; | |
260 | fibctx = NULL; | |
261 | } | |
262 | if (!fibctx) { | |
5234e25c | 263 | spin_unlock_irqrestore(&dev->fib_lock, flags); |
1da177e4 LT |
264 | dprintk ((KERN_INFO "Fib Context not found\n")); |
265 | return -EINVAL; | |
266 | } | |
267 | ||
268 | if((fibctx->type != FSAFS_NTC_GET_ADAPTER_FIB_CONTEXT) || | |
269 | (fibctx->size != sizeof(struct aac_fib_context))) { | |
5234e25c | 270 | spin_unlock_irqrestore(&dev->fib_lock, flags); |
1da177e4 LT |
271 | dprintk ((KERN_INFO "Fib Context corrupt?\n")); |
272 | return -EINVAL; | |
273 | } | |
274 | status = 0; | |
1da177e4 LT |
275 | /* |
276 | * If there are no fibs to send back, then either wait or return | |
277 | * -EAGAIN | |
278 | */ | |
279 | return_fib: | |
280 | if (!list_empty(&fibctx->fib_list)) { | |
1da177e4 LT |
281 | /* |
282 | * Pull the next fib from the fibs | |
283 | */ | |
284 | entry = fibctx->fib_list.next; | |
285 | list_del(entry); | |
8ce3eca4 | 286 | |
1da177e4 LT |
287 | fib = list_entry(entry, struct fib, fiblink); |
288 | fibctx->count--; | |
289 | spin_unlock_irqrestore(&dev->fib_lock, flags); | |
a8166a52 MH |
290 | if (copy_to_user(f.fib, fib->hw_fib_va, sizeof(struct hw_fib))) { |
291 | kfree(fib->hw_fib_va); | |
1da177e4 LT |
292 | kfree(fib); |
293 | return -EFAULT; | |
8ce3eca4 | 294 | } |
1da177e4 LT |
295 | /* |
296 | * Free the space occupied by this copy of the fib. | |
297 | */ | |
a8166a52 | 298 | kfree(fib->hw_fib_va); |
1da177e4 LT |
299 | kfree(fib); |
300 | status = 0; | |
1da177e4 LT |
301 | } else { |
302 | spin_unlock_irqrestore(&dev->fib_lock, flags); | |
dc4adbf4 MH |
303 | /* If someone killed the AIF aacraid thread, restart it */ |
304 | status = !dev->aif_thread; | |
8c867b25 | 305 | if (status && !dev->in_reset && dev->queues && dev->fsa_dev) { |
dc4adbf4 MH |
306 | /* Be paranoid, be very paranoid! */ |
307 | kthread_stop(dev->thread); | |
308 | ssleep(1); | |
309 | dev->aif_thread = 0; | |
310 | dev->thread = kthread_run(aac_command_thread, dev, dev->name); | |
311 | ssleep(1); | |
312 | } | |
1da177e4 LT |
313 | if (f.wait) { |
314 | if(down_interruptible(&fibctx->wait_sem) < 0) { | |
315 | status = -EINTR; | |
316 | } else { | |
317 | /* Lock again and retry */ | |
318 | spin_lock_irqsave(&dev->fib_lock, flags); | |
319 | goto return_fib; | |
320 | } | |
321 | } else { | |
322 | status = -EAGAIN; | |
8ce3eca4 | 323 | } |
1da177e4 | 324 | } |
12a26d08 | 325 | fibctx->jiffies = jiffies/HZ; |
1da177e4 LT |
326 | return status; |
327 | } | |
328 | ||
329 | int aac_close_fib_context(struct aac_dev * dev, struct aac_fib_context * fibctx) | |
330 | { | |
331 | struct fib *fib; | |
332 | ||
333 | /* | |
334 | * First free any FIBs that have not been consumed. | |
335 | */ | |
336 | while (!list_empty(&fibctx->fib_list)) { | |
337 | struct list_head * entry; | |
338 | /* | |
339 | * Pull the next fib from the fibs | |
340 | */ | |
341 | entry = fibctx->fib_list.next; | |
342 | list_del(entry); | |
343 | fib = list_entry(entry, struct fib, fiblink); | |
344 | fibctx->count--; | |
345 | /* | |
346 | * Free the space occupied by this copy of the fib. | |
347 | */ | |
a8166a52 | 348 | kfree(fib->hw_fib_va); |
1da177e4 LT |
349 | kfree(fib); |
350 | } | |
351 | /* | |
352 | * Remove the Context from the AdapterFibContext List | |
353 | */ | |
354 | list_del(&fibctx->next); | |
355 | /* | |
356 | * Invalidate context | |
357 | */ | |
358 | fibctx->type = 0; | |
359 | /* | |
360 | * Free the space occupied by the Context | |
361 | */ | |
362 | kfree(fibctx); | |
363 | return 0; | |
364 | } | |
365 | ||
366 | /** | |
367 | * close_getadapter_fib - close down user fib context | |
368 | * @dev: adapter | |
369 | * @arg: ioctl arguments | |
370 | * | |
371 | * This routine will close down the fibctx passed in from the user. | |
372 | */ | |
8ce3eca4 | 373 | |
1da177e4 LT |
374 | static int close_getadapter_fib(struct aac_dev * dev, void __user *arg) |
375 | { | |
376 | struct aac_fib_context *fibctx; | |
377 | int status; | |
378 | unsigned long flags; | |
379 | struct list_head * entry; | |
380 | ||
381 | /* | |
382 | * Verify that the HANDLE passed in was a valid AdapterFibContext | |
383 | * | |
384 | * Search the list of AdapterFibContext addresses on the adapter | |
385 | * to be sure this is a valid address | |
386 | */ | |
387 | ||
388 | entry = dev->fib_list.next; | |
389 | fibctx = NULL; | |
390 | ||
391 | while(entry != &dev->fib_list) { | |
392 | fibctx = list_entry(entry, struct aac_fib_context, next); | |
393 | /* | |
394 | * Extract the fibctx from the input parameters | |
395 | */ | |
142956af | 396 | if (fibctx->unique == (u32)(uintptr_t)arg) /* We found a winner */ |
1da177e4 | 397 | break; |
1da177e4 LT |
398 | entry = entry->next; |
399 | fibctx = NULL; | |
400 | } | |
401 | ||
402 | if (!fibctx) | |
403 | return 0; /* Already gone */ | |
404 | ||
405 | if((fibctx->type != FSAFS_NTC_GET_ADAPTER_FIB_CONTEXT) || | |
406 | (fibctx->size != sizeof(struct aac_fib_context))) | |
407 | return -EINVAL; | |
408 | spin_lock_irqsave(&dev->fib_lock, flags); | |
409 | status = aac_close_fib_context(dev, fibctx); | |
410 | spin_unlock_irqrestore(&dev->fib_lock, flags); | |
411 | return status; | |
412 | } | |
413 | ||
414 | /** | |
415 | * check_revision - close down user fib context | |
416 | * @dev: adapter | |
417 | * @arg: ioctl arguments | |
418 | * | |
419 | * This routine returns the driver version. | |
5234e25c SM |
420 | * Under Linux, there have been no version incompatibilities, so this is |
421 | * simple! | |
1da177e4 LT |
422 | */ |
423 | ||
424 | static int check_revision(struct aac_dev *dev, void __user *arg) | |
425 | { | |
426 | struct revision response; | |
c7f47602 MH |
427 | char *driver_version = aac_driver_version; |
428 | u32 version; | |
429 | ||
9f30a323 | 430 | response.compat = 1; |
8ce3eca4 | 431 | version = (simple_strtol(driver_version, |
c7f47602 MH |
432 | &driver_version, 10) << 24) | 0x00000400; |
433 | version += simple_strtol(driver_version + 1, &driver_version, 10) << 16; | |
434 | version += simple_strtol(driver_version + 1, NULL, 10); | |
435 | response.version = cpu_to_le32(version); | |
8ce3eca4 | 436 | # ifdef AAC_DRIVER_BUILD |
c7f47602 MH |
437 | response.build = cpu_to_le32(AAC_DRIVER_BUILD); |
438 | # else | |
439 | response.build = cpu_to_le32(9999); | |
440 | # endif | |
1da177e4 LT |
441 | |
442 | if (copy_to_user(arg, &response, sizeof(response))) | |
443 | return -EFAULT; | |
444 | return 0; | |
445 | } | |
446 | ||
7c00ffa3 | 447 | |
1da177e4 LT |
448 | /** |
449 | * | |
450 | * aac_send_raw_scb | |
451 | * | |
452 | */ | |
453 | ||
4833869e | 454 | static int aac_send_raw_srb(struct aac_dev* dev, void __user * arg) |
1da177e4 LT |
455 | { |
456 | struct fib* srbfib; | |
457 | int status; | |
56b58712 MH |
458 | struct aac_srb *srbcmd = NULL; |
459 | struct user_aac_srb *user_srbcmd = NULL; | |
460 | struct user_aac_srb __user *user_srb = arg; | |
1da177e4 LT |
461 | struct aac_srb_reply __user *user_reply; |
462 | struct aac_srb_reply* reply; | |
463 | u32 fibsize = 0; | |
464 | u32 flags = 0; | |
465 | s32 rcode = 0; | |
466 | u32 data_dir; | |
467 | void __user *sg_user[32]; | |
468 | void *sg_list[32]; | |
5234e25c | 469 | u32 sg_indx = 0; |
1da177e4 | 470 | u32 byte_count = 0; |
f2b1a06a | 471 | u32 actual_fibsize64, actual_fibsize = 0; |
1da177e4 LT |
472 | int i; |
473 | ||
474 | ||
33bb3b29 MH |
475 | if (dev->in_reset) { |
476 | dprintk((KERN_DEBUG"aacraid: send raw srb -EBUSY\n")); | |
477 | return -EBUSY; | |
478 | } | |
1da177e4 | 479 | if (!capable(CAP_SYS_ADMIN)){ |
8ce3eca4 | 480 | dprintk((KERN_DEBUG"aacraid: No permission to send raw srb\n")); |
1da177e4 LT |
481 | return -EPERM; |
482 | } | |
483 | /* | |
f2b1a06a | 484 | * Allocate and initialize a Fib then setup a SRB command |
1da177e4 | 485 | */ |
bfb35aa8 | 486 | if (!(srbfib = aac_fib_alloc(dev))) { |
5d497cec | 487 | return -ENOMEM; |
1da177e4 | 488 | } |
bfb35aa8 | 489 | aac_fib_init(srbfib); |
1da177e4 LT |
490 | |
491 | srbcmd = (struct aac_srb*) fib_data(srbfib); | |
492 | ||
7c00ffa3 | 493 | memset(sg_list, 0, sizeof(sg_list)); /* cleanup may take issue */ |
1da177e4 | 494 | if(copy_from_user(&fibsize, &user_srb->count,sizeof(u32))){ |
8ce3eca4 | 495 | dprintk((KERN_DEBUG"aacraid: Could not copy data size from user\n")); |
1da177e4 LT |
496 | rcode = -EFAULT; |
497 | goto cleanup; | |
498 | } | |
499 | ||
7c00ffa3 | 500 | if (fibsize > (dev->max_fib_size - sizeof(struct aac_fibhdr))) { |
1da177e4 LT |
501 | rcode = -EINVAL; |
502 | goto cleanup; | |
503 | } | |
504 | ||
4645df10 | 505 | user_srbcmd = kmalloc(fibsize, GFP_KERNEL); |
7c00ffa3 MH |
506 | if (!user_srbcmd) { |
507 | dprintk((KERN_DEBUG"aacraid: Could not make a copy of the srb\n")); | |
508 | rcode = -ENOMEM; | |
509 | goto cleanup; | |
510 | } | |
56b58712 | 511 | if(copy_from_user(user_srbcmd, user_srb,fibsize)){ |
8ce3eca4 | 512 | dprintk((KERN_DEBUG"aacraid: Could not copy srb from user\n")); |
1da177e4 LT |
513 | rcode = -EFAULT; |
514 | goto cleanup; | |
515 | } | |
516 | ||
517 | user_reply = arg+fibsize; | |
518 | ||
56b58712 | 519 | flags = user_srbcmd->flags; /* from user in cpu order */ |
1da177e4 | 520 | // Fix up srb for endian and force some values |
56b58712 | 521 | |
1da177e4 | 522 | srbcmd->function = cpu_to_le32(SRBF_ExecuteScsi); // Force this |
5234e25c | 523 | srbcmd->channel = cpu_to_le32(user_srbcmd->channel); |
7c00ffa3 | 524 | srbcmd->id = cpu_to_le32(user_srbcmd->id); |
5234e25c SM |
525 | srbcmd->lun = cpu_to_le32(user_srbcmd->lun); |
526 | srbcmd->timeout = cpu_to_le32(user_srbcmd->timeout); | |
527 | srbcmd->flags = cpu_to_le32(flags); | |
5d497cec | 528 | srbcmd->retry_limit = 0; // Obsolete parameter |
56b58712 | 529 | srbcmd->cdb_size = cpu_to_le32(user_srbcmd->cdb_size); |
5d497cec | 530 | memcpy(srbcmd->cdb, user_srbcmd->cdb, sizeof(srbcmd->cdb)); |
8ce3eca4 | 531 | |
56b58712 | 532 | switch (flags & (SRB_DataIn | SRB_DataOut)) { |
1da177e4 LT |
533 | case SRB_DataOut: |
534 | data_dir = DMA_TO_DEVICE; | |
535 | break; | |
536 | case (SRB_DataIn | SRB_DataOut): | |
537 | data_dir = DMA_BIDIRECTIONAL; | |
538 | break; | |
539 | case SRB_DataIn: | |
540 | data_dir = DMA_FROM_DEVICE; | |
541 | break; | |
542 | default: | |
543 | data_dir = DMA_NONE; | |
544 | } | |
6391a113 | 545 | if (user_srbcmd->sg.count > ARRAY_SIZE(sg_list)) { |
7c00ffa3 MH |
546 | dprintk((KERN_DEBUG"aacraid: too many sg entries %d\n", |
547 | le32_to_cpu(srbcmd->sg.count))); | |
548 | rcode = -EINVAL; | |
549 | goto cleanup; | |
550 | } | |
f2b1a06a MH |
551 | actual_fibsize = sizeof(struct aac_srb) - sizeof(struct sgentry) + |
552 | ((user_srbcmd->sg.count & 0xff) * sizeof(struct sgentry)); | |
553 | actual_fibsize64 = actual_fibsize + (user_srbcmd->sg.count & 0xff) * | |
554 | (sizeof(struct sgentry64) - sizeof(struct sgentry)); | |
555 | /* User made a mistake - should not continue */ | |
556 | if ((actual_fibsize != fibsize) && (actual_fibsize64 != fibsize)) { | |
557 | dprintk((KERN_DEBUG"aacraid: Bad Size specified in " | |
558 | "Raw SRB command calculated fibsize=%lu;%lu " | |
559 | "user_srbcmd->sg.count=%d aac_srb=%lu sgentry=%lu;%lu " | |
560 | "issued fibsize=%d\n", | |
561 | actual_fibsize, actual_fibsize64, user_srbcmd->sg.count, | |
562 | sizeof(struct aac_srb), sizeof(struct sgentry), | |
563 | sizeof(struct sgentry64), fibsize)); | |
564 | rcode = -EINVAL; | |
565 | goto cleanup; | |
566 | } | |
567 | if ((data_dir == DMA_NONE) && user_srbcmd->sg.count) { | |
568 | dprintk((KERN_DEBUG"aacraid: SG with no direction specified in Raw SRB command\n")); | |
569 | rcode = -EINVAL; | |
570 | goto cleanup; | |
571 | } | |
572 | byte_count = 0; | |
573 | if (dev->adapter_info.options & AAC_OPT_SGMAP_HOST64) { | |
56b58712 | 574 | struct user_sgmap64* upsg = (struct user_sgmap64*)&user_srbcmd->sg; |
84e29308 | 575 | struct sgmap64* psg = (struct sgmap64*)&srbcmd->sg; |
1da177e4 LT |
576 | |
577 | /* | |
578 | * This should also catch if user used the 32 bit sgmap | |
579 | */ | |
f2b1a06a MH |
580 | if (actual_fibsize64 == fibsize) { |
581 | actual_fibsize = actual_fibsize64; | |
582 | for (i = 0; i < upsg->count; i++) { | |
583 | u64 addr; | |
584 | void* p; | |
09050715 MS |
585 | if (upsg->sg[i].count > |
586 | (dev->adapter_info.options & | |
587 | AAC_OPT_NEW_COMM) ? | |
588 | (dev->scsi_host_ptr->max_sectors << 9) : | |
589 | 65536) { | |
590 | rcode = -EINVAL; | |
591 | goto cleanup; | |
592 | } | |
f2b1a06a MH |
593 | /* Does this really need to be GFP_DMA? */ |
594 | p = kmalloc(upsg->sg[i].count,GFP_KERNEL|__GFP_DMA); | |
6dcd4a7f | 595 | if(!p) { |
f2b1a06a MH |
596 | dprintk((KERN_DEBUG"aacraid: Could not allocate SG buffer - size = %d buffer number %d of %d\n", |
597 | upsg->sg[i].count,i,upsg->count)); | |
598 | rcode = -ENOMEM; | |
599 | goto cleanup; | |
600 | } | |
601 | addr = (u64)upsg->sg[i].addr[0]; | |
602 | addr += ((u64)upsg->sg[i].addr[1]) << 32; | |
142956af | 603 | sg_user[i] = (void __user *)(uintptr_t)addr; |
f2b1a06a MH |
604 | sg_list[i] = p; // save so we can clean up later |
605 | sg_indx = i; | |
606 | ||
8ce3eca4 | 607 | if (flags & SRB_DataOut) { |
f2b1a06a MH |
608 | if(copy_from_user(p,sg_user[i],upsg->sg[i].count)){ |
609 | dprintk((KERN_DEBUG"aacraid: Could not copy sg data from user\n")); | |
610 | rcode = -EFAULT; | |
611 | goto cleanup; | |
612 | } | |
613 | } | |
614 | addr = pci_map_single(dev->pdev, p, upsg->sg[i].count, data_dir); | |
1da177e4 | 615 | |
f2b1a06a MH |
616 | psg->sg[i].addr[0] = cpu_to_le32(addr & 0xffffffff); |
617 | psg->sg[i].addr[1] = cpu_to_le32(addr>>32); | |
618 | byte_count += upsg->sg[i].count; | |
619 | psg->sg[i].count = cpu_to_le32(upsg->sg[i].count); | |
620 | } | |
621 | } else { | |
622 | struct user_sgmap* usg; | |
623 | usg = kmalloc(actual_fibsize - sizeof(struct aac_srb) | |
624 | + sizeof(struct sgmap), GFP_KERNEL); | |
625 | if (!usg) { | |
626 | dprintk((KERN_DEBUG"aacraid: Allocation error in Raw SRB command\n")); | |
1da177e4 LT |
627 | rcode = -ENOMEM; |
628 | goto cleanup; | |
629 | } | |
f2b1a06a MH |
630 | memcpy (usg, upsg, actual_fibsize - sizeof(struct aac_srb) |
631 | + sizeof(struct sgmap)); | |
632 | actual_fibsize = actual_fibsize64; | |
633 | ||
634 | for (i = 0; i < usg->count; i++) { | |
635 | u64 addr; | |
636 | void* p; | |
09050715 MS |
637 | if (usg->sg[i].count > |
638 | (dev->adapter_info.options & | |
639 | AAC_OPT_NEW_COMM) ? | |
640 | (dev->scsi_host_ptr->max_sectors << 9) : | |
641 | 65536) { | |
642 | rcode = -EINVAL; | |
643 | goto cleanup; | |
644 | } | |
f2b1a06a MH |
645 | /* Does this really need to be GFP_DMA? */ |
646 | p = kmalloc(usg->sg[i].count,GFP_KERNEL|__GFP_DMA); | |
6dcd4a7f | 647 | if(!p) { |
7c00ffa3 | 648 | kfree (usg); |
f2b1a06a MH |
649 | dprintk((KERN_DEBUG"aacraid: Could not allocate SG buffer - size = %d buffer number %d of %d\n", |
650 | usg->sg[i].count,i,usg->count)); | |
651 | rcode = -ENOMEM; | |
1da177e4 LT |
652 | goto cleanup; |
653 | } | |
142956af | 654 | sg_user[i] = (void __user *)(uintptr_t)usg->sg[i].addr; |
f2b1a06a MH |
655 | sg_list[i] = p; // save so we can clean up later |
656 | sg_indx = i; | |
657 | ||
8ce3eca4 | 658 | if (flags & SRB_DataOut) { |
f2b1a06a MH |
659 | if(copy_from_user(p,sg_user[i],upsg->sg[i].count)){ |
660 | kfree (usg); | |
661 | dprintk((KERN_DEBUG"aacraid: Could not copy sg data from user\n")); | |
662 | rcode = -EFAULT; | |
663 | goto cleanup; | |
664 | } | |
665 | } | |
666 | addr = pci_map_single(dev->pdev, p, usg->sg[i].count, data_dir); | |
1da177e4 | 667 | |
f2b1a06a MH |
668 | psg->sg[i].addr[0] = cpu_to_le32(addr & 0xffffffff); |
669 | psg->sg[i].addr[1] = cpu_to_le32(addr>>32); | |
670 | byte_count += usg->sg[i].count; | |
671 | psg->sg[i].count = cpu_to_le32(usg->sg[i].count); | |
672 | } | |
673 | kfree (usg); | |
1da177e4 | 674 | } |
1da177e4 | 675 | srbcmd->count = cpu_to_le32(byte_count); |
7c00ffa3 | 676 | psg->count = cpu_to_le32(sg_indx+1); |
bfb35aa8 | 677 | status = aac_fib_send(ScsiPortCommand64, srbfib, actual_fibsize, FsaNormal, 1, 1,NULL,NULL); |
1da177e4 | 678 | } else { |
56b58712 | 679 | struct user_sgmap* upsg = &user_srbcmd->sg; |
1da177e4 | 680 | struct sgmap* psg = &srbcmd->sg; |
f2b1a06a MH |
681 | |
682 | if (actual_fibsize64 == fibsize) { | |
683 | struct user_sgmap64* usg = (struct user_sgmap64 *)upsg; | |
684 | for (i = 0; i < upsg->count; i++) { | |
142956af | 685 | uintptr_t addr; |
f2b1a06a | 686 | void* p; |
09050715 MS |
687 | if (usg->sg[i].count > |
688 | (dev->adapter_info.options & | |
689 | AAC_OPT_NEW_COMM) ? | |
690 | (dev->scsi_host_ptr->max_sectors << 9) : | |
691 | 65536) { | |
692 | rcode = -EINVAL; | |
693 | goto cleanup; | |
694 | } | |
f2b1a06a MH |
695 | /* Does this really need to be GFP_DMA? */ |
696 | p = kmalloc(usg->sg[i].count,GFP_KERNEL|__GFP_DMA); | |
6dcd4a7f | 697 | if(!p) { |
f2b1a06a MH |
698 | dprintk((KERN_DEBUG"aacraid: Could not allocate SG buffer - size = %d buffer number %d of %d\n", |
699 | usg->sg[i].count,i,usg->count)); | |
700 | rcode = -ENOMEM; | |
1da177e4 LT |
701 | goto cleanup; |
702 | } | |
f2b1a06a MH |
703 | addr = (u64)usg->sg[i].addr[0]; |
704 | addr += ((u64)usg->sg[i].addr[1]) << 32; | |
142956af | 705 | sg_user[i] = (void __user *)addr; |
f2b1a06a MH |
706 | sg_list[i] = p; // save so we can clean up later |
707 | sg_indx = i; | |
708 | ||
8ce3eca4 | 709 | if (flags & SRB_DataOut) { |
f2b1a06a MH |
710 | if(copy_from_user(p,sg_user[i],usg->sg[i].count)){ |
711 | dprintk((KERN_DEBUG"aacraid: Could not copy sg data from user\n")); | |
712 | rcode = -EFAULT; | |
713 | goto cleanup; | |
714 | } | |
715 | } | |
716 | addr = pci_map_single(dev->pdev, p, usg->sg[i].count, data_dir); | |
717 | ||
718 | psg->sg[i].addr = cpu_to_le32(addr & 0xffffffff); | |
719 | byte_count += usg->sg[i].count; | |
720 | psg->sg[i].count = cpu_to_le32(usg->sg[i].count); | |
1da177e4 | 721 | } |
f2b1a06a MH |
722 | } else { |
723 | for (i = 0; i < upsg->count; i++) { | |
724 | dma_addr_t addr; | |
725 | void* p; | |
09050715 MS |
726 | if (upsg->sg[i].count > |
727 | (dev->adapter_info.options & | |
728 | AAC_OPT_NEW_COMM) ? | |
729 | (dev->scsi_host_ptr->max_sectors << 9) : | |
730 | 65536) { | |
731 | rcode = -EINVAL; | |
732 | goto cleanup; | |
733 | } | |
f2b1a06a | 734 | p = kmalloc(upsg->sg[i].count, GFP_KERNEL); |
6dcd4a7f | 735 | if (!p) { |
f2b1a06a MH |
736 | dprintk((KERN_DEBUG"aacraid: Could not allocate SG buffer - size = %d buffer number %d of %d\n", |
737 | upsg->sg[i].count, i, upsg->count)); | |
738 | rcode = -ENOMEM; | |
739 | goto cleanup; | |
740 | } | |
142956af | 741 | sg_user[i] = (void __user *)(uintptr_t)upsg->sg[i].addr; |
f2b1a06a MH |
742 | sg_list[i] = p; // save so we can clean up later |
743 | sg_indx = i; | |
744 | ||
8ce3eca4 | 745 | if (flags & SRB_DataOut) { |
f2b1a06a MH |
746 | if(copy_from_user(p, sg_user[i], |
747 | upsg->sg[i].count)) { | |
748 | dprintk((KERN_DEBUG"aacraid: Could not copy sg data from user\n")); | |
749 | rcode = -EFAULT; | |
750 | goto cleanup; | |
751 | } | |
752 | } | |
753 | addr = pci_map_single(dev->pdev, p, | |
754 | upsg->sg[i].count, data_dir); | |
1da177e4 | 755 | |
f2b1a06a MH |
756 | psg->sg[i].addr = cpu_to_le32(addr); |
757 | byte_count += upsg->sg[i].count; | |
758 | psg->sg[i].count = cpu_to_le32(upsg->sg[i].count); | |
759 | } | |
1da177e4 LT |
760 | } |
761 | srbcmd->count = cpu_to_le32(byte_count); | |
7c00ffa3 | 762 | psg->count = cpu_to_le32(sg_indx+1); |
bfb35aa8 | 763 | status = aac_fib_send(ScsiPortCommand, srbfib, actual_fibsize, FsaNormal, 1, 1, NULL, NULL); |
1da177e4 | 764 | } |
c8f7b073 MH |
765 | if (status == -EINTR) { |
766 | rcode = -EINTR; | |
767 | goto cleanup; | |
768 | } | |
1da177e4 LT |
769 | |
770 | if (status != 0){ | |
8ce3eca4 | 771 | dprintk((KERN_DEBUG"aacraid: Could not send raw srb fib to hba\n")); |
5d497cec | 772 | rcode = -ENXIO; |
1da177e4 LT |
773 | goto cleanup; |
774 | } | |
775 | ||
8ce3eca4 | 776 | if (flags & SRB_DataIn) { |
1da177e4 | 777 | for(i = 0 ; i <= sg_indx; i++){ |
f2b1a06a MH |
778 | byte_count = le32_to_cpu( |
779 | (dev->adapter_info.options & AAC_OPT_SGMAP_HOST64) | |
7c00ffa3 MH |
780 | ? ((struct sgmap64*)&srbcmd->sg)->sg[i].count |
781 | : srbcmd->sg.sg[i].count); | |
782 | if(copy_to_user(sg_user[i], sg_list[i], byte_count)){ | |
8ce3eca4 | 783 | dprintk((KERN_DEBUG"aacraid: Could not copy sg data to user\n")); |
1da177e4 LT |
784 | rcode = -EFAULT; |
785 | goto cleanup; | |
786 | ||
787 | } | |
788 | } | |
789 | } | |
790 | ||
791 | reply = (struct aac_srb_reply *) fib_data(srbfib); | |
792 | if(copy_to_user(user_reply,reply,sizeof(struct aac_srb_reply))){ | |
8ce3eca4 | 793 | dprintk((KERN_DEBUG"aacraid: Could not copy reply to user\n")); |
1da177e4 LT |
794 | rcode = -EFAULT; |
795 | goto cleanup; | |
796 | } | |
797 | ||
798 | cleanup: | |
56b58712 | 799 | kfree(user_srbcmd); |
1da177e4 LT |
800 | for(i=0; i <= sg_indx; i++){ |
801 | kfree(sg_list[i]); | |
802 | } | |
c8f7b073 MH |
803 | if (rcode != -EINTR) { |
804 | aac_fib_complete(srbfib); | |
805 | aac_fib_free(srbfib); | |
806 | } | |
1da177e4 LT |
807 | |
808 | return rcode; | |
809 | } | |
810 | ||
1da177e4 | 811 | struct aac_pci_info { |
8ce3eca4 SM |
812 | u32 bus; |
813 | u32 slot; | |
1da177e4 LT |
814 | }; |
815 | ||
816 | ||
4833869e | 817 | static int aac_get_pci_info(struct aac_dev* dev, void __user *arg) |
1da177e4 | 818 | { |
8ce3eca4 | 819 | struct aac_pci_info pci_info; |
1da177e4 LT |
820 | |
821 | pci_info.bus = dev->pdev->bus->number; | |
822 | pci_info.slot = PCI_SLOT(dev->pdev->devfn); | |
823 | ||
5234e25c SM |
824 | if (copy_to_user(arg, &pci_info, sizeof(struct aac_pci_info))) { |
825 | dprintk((KERN_DEBUG "aacraid: Could not copy pci info\n")); | |
826 | return -EFAULT; | |
1da177e4 | 827 | } |
8ce3eca4 | 828 | return 0; |
7c00ffa3 | 829 | } |
8ce3eca4 | 830 | |
1da177e4 LT |
831 | |
832 | int aac_do_ioctl(struct aac_dev * dev, int cmd, void __user *arg) | |
833 | { | |
834 | int status; | |
8ce3eca4 | 835 | |
1da177e4 LT |
836 | /* |
837 | * HBA gets first crack | |
838 | */ | |
8ce3eca4 | 839 | |
1da177e4 LT |
840 | status = aac_dev_ioctl(dev, cmd, arg); |
841 | if(status != -ENOTTY) | |
842 | return status; | |
843 | ||
844 | switch (cmd) { | |
845 | case FSACTL_MINIPORT_REV_CHECK: | |
846 | status = check_revision(dev, arg); | |
847 | break; | |
7c00ffa3 | 848 | case FSACTL_SEND_LARGE_FIB: |
1da177e4 LT |
849 | case FSACTL_SENDFIB: |
850 | status = ioctl_send_fib(dev, arg); | |
851 | break; | |
852 | case FSACTL_OPEN_GET_ADAPTER_FIB: | |
853 | status = open_getadapter_fib(dev, arg); | |
854 | break; | |
855 | case FSACTL_GET_NEXT_ADAPTER_FIB: | |
856 | status = next_getadapter_fib(dev, arg); | |
857 | break; | |
858 | case FSACTL_CLOSE_GET_ADAPTER_FIB: | |
859 | status = close_getadapter_fib(dev, arg); | |
860 | break; | |
861 | case FSACTL_SEND_RAW_SRB: | |
862 | status = aac_send_raw_srb(dev,arg); | |
863 | break; | |
864 | case FSACTL_GET_PCI_INFO: | |
865 | status = aac_get_pci_info(dev,arg); | |
866 | break; | |
867 | default: | |
868 | status = -ENOTTY; | |
8ce3eca4 | 869 | break; |
1da177e4 LT |
870 | } |
871 | return status; | |
872 | } | |
873 |