1 /*-
2 * SPDX-License-Identifier: BSD-4-Clause
3 *
4 * Copyright (c) 2003
5 * Bill Paul <[email protected]>. All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. All advertising materials mentioning features or use of this software
16 * must display the following acknowledgement:
17 * This product includes software developed by Bill Paul.
18 * 4. Neither the name of the author nor the names of any co-contributors
19 * may be used to endorse or promote products derived from this software
20 * without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
26 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
27 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
28 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
29 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
30 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
31 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
32 * THE POSSIBILITY OF SUCH DAMAGE.
33 */
34
35 #include <sys/cdefs.h>
36 __FBSDID("$FreeBSD$");
37
38 /*
39 * This file implements a translation layer between the BSD networking
40 * infrasturcture and Windows(R) NDIS network driver modules. A Windows
41 * NDIS driver calls into several functions in the NDIS.SYS Windows
42 * kernel module and exports a table of functions designed to be called
43 * by the NDIS subsystem. Using the PE loader, we can patch our own
44 * versions of the NDIS routines into a given Windows driver module and
45 * convince the driver that it is in fact running on Windows.
46 *
47 * We provide a table of all our implemented NDIS routines which is patched
48 * into the driver object code. All our exported routines must use the
49 * _stdcall calling convention, since that's what the Windows object code
50 * expects.
51 */
52
53 #include <sys/ctype.h>
54 #include <sys/param.h>
55 #include <sys/types.h>
56 #include <sys/errno.h>
57
58 #include <sys/callout.h>
59 #include <sys/kernel.h>
60 #include <sys/systm.h>
61 #include <sys/malloc.h>
62 #include <sys/lock.h>
63 #include <sys/mutex.h>
64 #include <sys/socket.h>
65 #include <sys/sysctl.h>
66 #include <sys/timespec.h>
67 #include <sys/smp.h>
68 #include <sys/queue.h>
69 #include <sys/proc.h>
70 #include <sys/filedesc.h>
71 #include <sys/namei.h>
72 #include <sys/fcntl.h>
73 #include <sys/vnode.h>
74 #include <sys/kthread.h>
75 #include <sys/linker.h>
76 #include <sys/mount.h>
77 #include <sys/sysproto.h>
78
79 #include <net/if.h>
80 #include <net/if_var.h>
81 #include <net/if_arp.h>
82 #include <net/ethernet.h>
83 #include <net/if_dl.h>
84 #include <net/if_media.h>
85
86 #include <machine/atomic.h>
87 #include <machine/bus.h>
88 #include <machine/resource.h>
89
90 #include <sys/bus.h>
91 #include <sys/rman.h>
92
93 #include <machine/stdarg.h>
94
95 #include <net80211/ieee80211_var.h>
96 #include <net80211/ieee80211_ioctl.h>
97
98 #include <dev/pci/pcireg.h>
99 #include <dev/pci/pcivar.h>
100 #include <dev/usb/usb.h>
101 #include <dev/usb/usbdi.h>
102
103 #include <compat/ndis/pe_var.h>
104 #include <compat/ndis/cfg_var.h>
105 #include <compat/ndis/resource_var.h>
106 #include <compat/ndis/ntoskrnl_var.h>
107 #include <compat/ndis/hal_var.h>
108 #include <compat/ndis/ndis_var.h>
109 #include <dev/if_ndis/if_ndisvar.h>
110
111 #include <vm/vm.h>
112 #include <vm/vm_param.h>
113 #include <vm/pmap.h>
114 #include <vm/uma.h>
115 #include <vm/vm_kern.h>
116 #include <vm/vm_map.h>
117
118 static char ndis_filepath[MAXPATHLEN];
119
120 SYSCTL_STRING(_hw, OID_AUTO, ndis_filepath, CTLFLAG_RW, ndis_filepath,
121 MAXPATHLEN, "Path used by NdisOpenFile() to search for files");
122
123 static void NdisInitializeWrapper(ndis_handle *,
124 driver_object *, void *, void *);
125 static ndis_status NdisMRegisterMiniport(ndis_handle,
126 ndis_miniport_characteristics *, int);
127 static ndis_status NdisAllocateMemoryWithTag(void **,
128 uint32_t, uint32_t);
129 static ndis_status NdisAllocateMemory(void **,
130 uint32_t, uint32_t, ndis_physaddr);
131 static void NdisFreeMemory(void *, uint32_t, uint32_t);
132 static ndis_status NdisMSetAttributesEx(ndis_handle, ndis_handle,
133 uint32_t, uint32_t, ndis_interface_type);
134 static void NdisOpenConfiguration(ndis_status *,
135 ndis_handle *, ndis_handle);
136 static void NdisOpenConfigurationKeyByIndex(ndis_status *,
137 ndis_handle, uint32_t, unicode_string *, ndis_handle *);
138 static void NdisOpenConfigurationKeyByName(ndis_status *,
139 ndis_handle, unicode_string *, ndis_handle *);
140 static ndis_status ndis_encode_parm(ndis_miniport_block *,
141 struct sysctl_oid *, ndis_parm_type, ndis_config_parm **);
142 static ndis_status ndis_decode_parm(ndis_miniport_block *,
143 ndis_config_parm *, char *);
144 static void NdisReadConfiguration(ndis_status *, ndis_config_parm **,
145 ndis_handle, unicode_string *, ndis_parm_type);
146 static void NdisWriteConfiguration(ndis_status *, ndis_handle,
147 unicode_string *, ndis_config_parm *);
148 static void NdisCloseConfiguration(ndis_handle);
149 static void NdisAllocateSpinLock(ndis_spin_lock *);
150 static void NdisFreeSpinLock(ndis_spin_lock *);
151 static void NdisAcquireSpinLock(ndis_spin_lock *);
152 static void NdisReleaseSpinLock(ndis_spin_lock *);
153 static void NdisDprAcquireSpinLock(ndis_spin_lock *);
154 static void NdisDprReleaseSpinLock(ndis_spin_lock *);
155 static void NdisInitializeReadWriteLock(ndis_rw_lock *);
156 static void NdisAcquireReadWriteLock(ndis_rw_lock *,
157 uint8_t, ndis_lock_state *);
158 static void NdisReleaseReadWriteLock(ndis_rw_lock *, ndis_lock_state *);
159 static uint32_t NdisReadPciSlotInformation(ndis_handle, uint32_t,
160 uint32_t, void *, uint32_t);
161 static uint32_t NdisWritePciSlotInformation(ndis_handle, uint32_t,
162 uint32_t, void *, uint32_t);
163 static void NdisWriteErrorLogEntry(ndis_handle, ndis_error_code, uint32_t, ...);
164 static void ndis_map_cb(void *, bus_dma_segment_t *, int, int);
165 static void NdisMStartBufferPhysicalMapping(ndis_handle,
166 ndis_buffer *, uint32_t, uint8_t, ndis_paddr_unit *, uint32_t *);
167 static void NdisMCompleteBufferPhysicalMapping(ndis_handle,
168 ndis_buffer *, uint32_t);
169 static void NdisMInitializeTimer(ndis_miniport_timer *, ndis_handle,
170 ndis_timer_function, void *);
171 static void NdisInitializeTimer(ndis_timer *,
172 ndis_timer_function, void *);
173 static void NdisSetTimer(ndis_timer *, uint32_t);
174 static void NdisMSetPeriodicTimer(ndis_miniport_timer *, uint32_t);
175 static void NdisMCancelTimer(ndis_timer *, uint8_t *);
176 static void ndis_timercall(kdpc *, ndis_miniport_timer *,
177 void *, void *);
178 static void NdisMQueryAdapterResources(ndis_status *, ndis_handle,
179 ndis_resource_list *, uint32_t *);
180 static ndis_status NdisMRegisterIoPortRange(void **,
181 ndis_handle, uint32_t, uint32_t);
182 static void NdisMDeregisterIoPortRange(ndis_handle,
183 uint32_t, uint32_t, void *);
184 static void NdisReadNetworkAddress(ndis_status *, void **,
185 uint32_t *, ndis_handle);
186 static ndis_status NdisQueryMapRegisterCount(uint32_t, uint32_t *);
187 static ndis_status NdisMAllocateMapRegisters(ndis_handle,
188 uint32_t, uint8_t, uint32_t, uint32_t);
189 static void NdisMFreeMapRegisters(ndis_handle);
190 static void ndis_mapshared_cb(void *, bus_dma_segment_t *, int, int);
191 static void NdisMAllocateSharedMemory(ndis_handle, uint32_t,
192 uint8_t, void **, ndis_physaddr *);
193 static void ndis_asyncmem_complete(device_object *, void *);
194 static ndis_status NdisMAllocateSharedMemoryAsync(ndis_handle,
195 uint32_t, uint8_t, void *);
196 static void NdisMFreeSharedMemory(ndis_handle, uint32_t,
197 uint8_t, void *, ndis_physaddr);
198 static ndis_status NdisMMapIoSpace(void **, ndis_handle,
199 ndis_physaddr, uint32_t);
200 static void NdisMUnmapIoSpace(ndis_handle, void *, uint32_t);
201 static uint32_t NdisGetCacheFillSize(void);
202 static void *NdisGetRoutineAddress(unicode_string *);
203 static uint32_t NdisMGetDmaAlignment(ndis_handle);
204 static ndis_status NdisMInitializeScatterGatherDma(ndis_handle,
205 uint8_t, uint32_t);
206 static void NdisUnchainBufferAtFront(ndis_packet *, ndis_buffer **);
207 static void NdisUnchainBufferAtBack(ndis_packet *, ndis_buffer **);
208 static void NdisAllocateBufferPool(ndis_status *,
209 ndis_handle *, uint32_t);
210 static void NdisFreeBufferPool(ndis_handle);
211 static void NdisAllocateBuffer(ndis_status *, ndis_buffer **,
212 ndis_handle, void *, uint32_t);
213 static void NdisFreeBuffer(ndis_buffer *);
214 static uint32_t NdisBufferLength(ndis_buffer *);
215 static void NdisQueryBuffer(ndis_buffer *, void **, uint32_t *);
216 static void NdisQueryBufferSafe(ndis_buffer *, void **,
217 uint32_t *, uint32_t);
218 static void *NdisBufferVirtualAddress(ndis_buffer *);
219 static void *NdisBufferVirtualAddressSafe(ndis_buffer *, uint32_t);
220 static void NdisAdjustBufferLength(ndis_buffer *, int);
221 static uint32_t NdisInterlockedIncrement(uint32_t *);
222 static uint32_t NdisInterlockedDecrement(uint32_t *);
223 static void NdisInitializeEvent(ndis_event *);
224 static void NdisSetEvent(ndis_event *);
225 static void NdisResetEvent(ndis_event *);
226 static uint8_t NdisWaitEvent(ndis_event *, uint32_t);
227 static ndis_status NdisUnicodeStringToAnsiString(ansi_string *,
228 unicode_string *);
229 static ndis_status
230 NdisAnsiStringToUnicodeString(unicode_string *, ansi_string *);
231 static ndis_status NdisMPciAssignResources(ndis_handle,
232 uint32_t, ndis_resource_list **);
233 static ndis_status NdisMRegisterInterrupt(ndis_miniport_interrupt *,
234 ndis_handle, uint32_t, uint32_t, uint8_t,
235 uint8_t, ndis_interrupt_mode);
236 static void NdisMDeregisterInterrupt(ndis_miniport_interrupt *);
237 static void NdisMRegisterAdapterShutdownHandler(ndis_handle, void *,
238 ndis_shutdown_handler);
239 static void NdisMDeregisterAdapterShutdownHandler(ndis_handle);
240 static uint32_t NDIS_BUFFER_TO_SPAN_PAGES(ndis_buffer *);
241 static void NdisGetBufferPhysicalArraySize(ndis_buffer *,
242 uint32_t *);
243 static void NdisQueryBufferOffset(ndis_buffer *,
244 uint32_t *, uint32_t *);
245 static uint32_t NdisReadPcmciaAttributeMemory(ndis_handle,
246 uint32_t, void *, uint32_t);
247 static uint32_t NdisWritePcmciaAttributeMemory(ndis_handle,
248 uint32_t, void *, uint32_t);
249 static list_entry *NdisInterlockedInsertHeadList(list_entry *,
250 list_entry *, ndis_spin_lock *);
251 static list_entry *NdisInterlockedRemoveHeadList(list_entry *,
252 ndis_spin_lock *);
253 static list_entry *NdisInterlockedInsertTailList(list_entry *,
254 list_entry *, ndis_spin_lock *);
255 static uint8_t
256 NdisMSynchronizeWithInterrupt(ndis_miniport_interrupt *,
257 void *, void *);
258 static void NdisGetCurrentSystemTime(uint64_t *);
259 static void NdisGetSystemUpTime(uint32_t *);
260 static uint32_t NdisGetVersion(void);
261 static void NdisInitializeString(unicode_string *, char *);
262 static void NdisInitAnsiString(ansi_string *, char *);
263 static void NdisInitUnicodeString(unicode_string *, uint16_t *);
264 static void NdisFreeString(unicode_string *);
265 static ndis_status NdisMRemoveMiniport(ndis_handle *);
266 static void NdisTerminateWrapper(ndis_handle, void *);
267 static void NdisMGetDeviceProperty(ndis_handle, device_object **,
268 device_object **, device_object **, cm_resource_list *,
269 cm_resource_list *);
270 static void NdisGetFirstBufferFromPacket(ndis_packet *,
271 ndis_buffer **, void **, uint32_t *, uint32_t *);
272 static void NdisGetFirstBufferFromPacketSafe(ndis_packet *,
273 ndis_buffer **, void **, uint32_t *, uint32_t *, uint32_t);
274 static int ndis_find_sym(linker_file_t, char *, char *, caddr_t *);
275 static void NdisOpenFile(ndis_status *, ndis_handle *, uint32_t *,
276 unicode_string *, ndis_physaddr);
277 static void NdisMapFile(ndis_status *, void **, ndis_handle);
278 static void NdisUnmapFile(ndis_handle);
279 static void NdisCloseFile(ndis_handle);
280 static uint8_t NdisSystemProcessorCount(void);
281 static void NdisGetCurrentProcessorCounts(uint32_t *, uint32_t *, uint32_t *);
282 static void NdisMIndicateStatusComplete(ndis_handle);
283 static void NdisMIndicateStatus(ndis_handle, ndis_status,
284 void *, uint32_t);
285 static uint8_t ndis_intr(kinterrupt *, void *);
286 static void ndis_intrhand(kdpc *, ndis_miniport_interrupt *, void *, void *);
287 static funcptr ndis_findwrap(funcptr);
288 static void NdisCopyFromPacketToPacket(ndis_packet *,
289 uint32_t, uint32_t, ndis_packet *, uint32_t, uint32_t *);
290 static void NdisCopyFromPacketToPacketSafe(ndis_packet *,
291 uint32_t, uint32_t, ndis_packet *, uint32_t, uint32_t *, uint32_t);
292 static void NdisIMCopySendPerPacketInfo(ndis_packet *, ndis_packet *);
293 static ndis_status NdisMRegisterDevice(ndis_handle,
294 unicode_string *, unicode_string *, driver_dispatch **,
295 void **, ndis_handle *);
296 static ndis_status NdisMDeregisterDevice(ndis_handle);
297 static ndis_status
298 NdisMQueryAdapterInstanceName(unicode_string *, ndis_handle);
299 static void NdisMRegisterUnloadHandler(ndis_handle, void *);
300 static void dummy(void);
301
302 /*
303 * Some really old drivers do not properly check the return value
304 * from NdisAllocatePacket() and NdisAllocateBuffer() and will
305 * sometimes allocate few more buffers/packets that they originally
306 * requested when they created the pool. To prevent this from being
307 * a problem, we allocate a few extra buffers/packets beyond what
308 * the driver asks for. This #define controls how many.
309 */
310 #define NDIS_POOL_EXTRA 16
311
312 int
ndis_libinit()313 ndis_libinit()
314 {
315 image_patch_table *patch;
316
317 strcpy(ndis_filepath, "/compat/ndis");
318
319 patch = ndis_functbl;
320 while (patch->ipt_func != NULL) {
321 windrv_wrap((funcptr)patch->ipt_func,
322 (funcptr *)&patch->ipt_wrap,
323 patch->ipt_argcnt, patch->ipt_ftype);
324 patch++;
325 }
326
327 return (0);
328 }
329
330 int
ndis_libfini()331 ndis_libfini()
332 {
333 image_patch_table *patch;
334
335 patch = ndis_functbl;
336 while (patch->ipt_func != NULL) {
337 windrv_unwrap(patch->ipt_wrap);
338 patch++;
339 }
340
341 return (0);
342 }
343
344 static funcptr
ndis_findwrap(func)345 ndis_findwrap(func)
346 funcptr func;
347 {
348 image_patch_table *patch;
349
350 patch = ndis_functbl;
351 while (patch->ipt_func != NULL) {
352 if ((funcptr)patch->ipt_func == func)
353 return ((funcptr)patch->ipt_wrap);
354 patch++;
355 }
356
357 return (NULL);
358 }
359
360 /*
361 * This routine does the messy Windows Driver Model device attachment
362 * stuff on behalf of NDIS drivers. We register our own AddDevice
363 * routine here
364 */
365 static void
NdisInitializeWrapper(wrapper,drv,path,unused)366 NdisInitializeWrapper(wrapper, drv, path, unused)
367 ndis_handle *wrapper;
368 driver_object *drv;
369 void *path;
370 void *unused;
371 {
372 /*
373 * As of yet, I haven't come up with a compelling
374 * reason to define a private NDIS wrapper structure,
375 * so we use a pointer to the driver object as the
376 * wrapper handle. The driver object has the miniport
377 * characteristics struct for this driver hung off it
378 * via IoAllocateDriverObjectExtension(), and that's
379 * really all the private data we need.
380 */
381
382 *wrapper = drv;
383
384 /*
385 * If this was really Windows, we'd be registering dispatch
386 * routines for the NDIS miniport module here, but we're
387 * not Windows so all we really need to do is set up an
388 * AddDevice function that'll be invoked when a new device
389 * instance appears.
390 */
391
392 drv->dro_driverext->dre_adddevicefunc = NdisAddDevice;
393 }
394
395 static void
NdisTerminateWrapper(handle,syspec)396 NdisTerminateWrapper(handle, syspec)
397 ndis_handle handle;
398 void *syspec;
399 {
400 /* Nothing to see here, move along. */
401 }
402
403 static ndis_status
NdisMRegisterMiniport(handle,characteristics,len)404 NdisMRegisterMiniport(handle, characteristics, len)
405 ndis_handle handle;
406 ndis_miniport_characteristics *characteristics;
407 int len;
408 {
409 ndis_miniport_characteristics *ch = NULL;
410 driver_object *drv;
411
412 drv = (driver_object *)handle;
413
414 /*
415 * We need to save the NDIS miniport characteristics
416 * somewhere. This data is per-driver, not per-device
417 * (all devices handled by the same driver have the
418 * same characteristics) so we hook it onto the driver
419 * object using IoAllocateDriverObjectExtension().
420 * The extra extension info is automagically deleted when
421 * the driver is unloaded (see windrv_unload()).
422 */
423
424 if (IoAllocateDriverObjectExtension(drv, (void *)1,
425 sizeof(ndis_miniport_characteristics), (void **)&ch) !=
426 STATUS_SUCCESS) {
427 return (NDIS_STATUS_RESOURCES);
428 }
429
430 bzero((char *)ch, sizeof(ndis_miniport_characteristics));
431
432 bcopy((char *)characteristics, (char *)ch, len);
433
434 if (ch->nmc_version_major < 5 || ch->nmc_version_minor < 1) {
435 ch->nmc_shutdown_handler = NULL;
436 ch->nmc_canceltxpkts_handler = NULL;
437 ch->nmc_pnpevent_handler = NULL;
438 }
439
440 return (NDIS_STATUS_SUCCESS);
441 }
442
443 static ndis_status
NdisAllocateMemoryWithTag(vaddr,len,tag)444 NdisAllocateMemoryWithTag(vaddr, len, tag)
445 void **vaddr;
446 uint32_t len;
447 uint32_t tag;
448 {
449 void *mem;
450
451 mem = ExAllocatePoolWithTag(NonPagedPool, len, tag);
452 if (mem == NULL) {
453 return (NDIS_STATUS_RESOURCES);
454 }
455 *vaddr = mem;
456
457 return (NDIS_STATUS_SUCCESS);
458 }
459
460 static ndis_status
NdisAllocateMemory(vaddr,len,flags,highaddr)461 NdisAllocateMemory(vaddr, len, flags, highaddr)
462 void **vaddr;
463 uint32_t len;
464 uint32_t flags;
465 ndis_physaddr highaddr;
466 {
467 void *mem;
468
469 mem = ExAllocatePoolWithTag(NonPagedPool, len, 0);
470 if (mem == NULL)
471 return (NDIS_STATUS_RESOURCES);
472 *vaddr = mem;
473
474 return (NDIS_STATUS_SUCCESS);
475 }
476
477 static void
NdisFreeMemory(vaddr,len,flags)478 NdisFreeMemory(vaddr, len, flags)
479 void *vaddr;
480 uint32_t len;
481 uint32_t flags;
482 {
483 if (len == 0)
484 return;
485
486 ExFreePool(vaddr);
487 }
488
489 static ndis_status
NdisMSetAttributesEx(adapter_handle,adapter_ctx,hangsecs,flags,iftype)490 NdisMSetAttributesEx(adapter_handle, adapter_ctx, hangsecs,
491 flags, iftype)
492 ndis_handle adapter_handle;
493 ndis_handle adapter_ctx;
494 uint32_t hangsecs;
495 uint32_t flags;
496 ndis_interface_type iftype;
497 {
498 ndis_miniport_block *block;
499
500 /*
501 * Save the adapter context, we need it for calling
502 * the driver's internal functions.
503 */
504 block = (ndis_miniport_block *)adapter_handle;
505 block->nmb_miniportadapterctx = adapter_ctx;
506 block->nmb_checkforhangsecs = hangsecs;
507 block->nmb_flags = flags;
508
509 return (NDIS_STATUS_SUCCESS);
510 }
511
512 static void
NdisOpenConfiguration(status,cfg,wrapctx)513 NdisOpenConfiguration(status, cfg, wrapctx)
514 ndis_status *status;
515 ndis_handle *cfg;
516 ndis_handle wrapctx;
517 {
518 *cfg = wrapctx;
519 *status = NDIS_STATUS_SUCCESS;
520 }
521
522 static void
NdisOpenConfigurationKeyByName(status,cfg,subkey,subhandle)523 NdisOpenConfigurationKeyByName(status, cfg, subkey, subhandle)
524 ndis_status *status;
525 ndis_handle cfg;
526 unicode_string *subkey;
527 ndis_handle *subhandle;
528 {
529 *subhandle = cfg;
530 *status = NDIS_STATUS_SUCCESS;
531 }
532
533 static void
NdisOpenConfigurationKeyByIndex(status,cfg,idx,subkey,subhandle)534 NdisOpenConfigurationKeyByIndex(status, cfg, idx, subkey, subhandle)
535 ndis_status *status;
536 ndis_handle cfg;
537 uint32_t idx;
538 unicode_string *subkey;
539 ndis_handle *subhandle;
540 {
541 *status = NDIS_STATUS_FAILURE;
542 }
543
544 static ndis_status
ndis_encode_parm(block,oid,type,parm)545 ndis_encode_parm(block, oid, type, parm)
546 ndis_miniport_block *block;
547 struct sysctl_oid *oid;
548 ndis_parm_type type;
549 ndis_config_parm **parm;
550 {
551 ndis_config_parm *p;
552 ndis_parmlist_entry *np;
553 unicode_string *us;
554 ansi_string as;
555 int base = 0;
556 uint32_t val;
557 char tmp[32];
558
559 np = ExAllocatePoolWithTag(NonPagedPool,
560 sizeof(ndis_parmlist_entry), 0);
561 if (np == NULL)
562 return (NDIS_STATUS_RESOURCES);
563 InsertHeadList((&block->nmb_parmlist), (&np->np_list));
564 *parm = p = &np->np_parm;
565
566 switch(type) {
567 case ndis_parm_string:
568 /* See if this might be a number. */
569 val = strtoul((char *)oid->oid_arg1, NULL, 10);
570 us = &p->ncp_parmdata.ncp_stringdata;
571 p->ncp_type = ndis_parm_string;
572 if (val) {
573 snprintf(tmp, 32, "%x", val);
574 RtlInitAnsiString(&as, tmp);
575 } else {
576 RtlInitAnsiString(&as, (char *)oid->oid_arg1);
577 }
578
579 if (RtlAnsiStringToUnicodeString(us, &as, TRUE)) {
580 ExFreePool(np);
581 return (NDIS_STATUS_RESOURCES);
582 }
583 break;
584 case ndis_parm_int:
585 if (strncmp((char *)oid->oid_arg1, "0x", 2) == 0)
586 base = 16;
587 else
588 base = 10;
589 p->ncp_type = ndis_parm_int;
590 p->ncp_parmdata.ncp_intdata =
591 strtol((char *)oid->oid_arg1, NULL, base);
592 break;
593 case ndis_parm_hexint:
594 #ifdef notdef
595 if (strncmp((char *)oid->oid_arg1, "0x", 2) == 0)
596 base = 16;
597 else
598 base = 10;
599 #endif
600 base = 16;
601 p->ncp_type = ndis_parm_hexint;
602 p->ncp_parmdata.ncp_intdata =
603 strtoul((char *)oid->oid_arg1, NULL, base);
604 break;
605 default:
606 return (NDIS_STATUS_FAILURE);
607 break;
608 }
609
610 return (NDIS_STATUS_SUCCESS);
611 }
612
613 static void
NdisReadConfiguration(status,parm,cfg,key,type)614 NdisReadConfiguration(status, parm, cfg, key, type)
615 ndis_status *status;
616 ndis_config_parm **parm;
617 ndis_handle cfg;
618 unicode_string *key;
619 ndis_parm_type type;
620 {
621 char *keystr = NULL;
622 ndis_miniport_block *block;
623 struct ndis_softc *sc;
624 struct sysctl_oid *oidp;
625 struct sysctl_ctx_entry *e;
626 ansi_string as;
627
628 block = (ndis_miniport_block *)cfg;
629 sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
630 /*
631 device_printf(sc->ndis_dev, "NdisReadConfiguration sc=%p\n", sc);
632 */
633
634 if (key->us_len == 0 || key->us_buf == NULL) {
635 *status = NDIS_STATUS_FAILURE;
636 return;
637 }
638
639 if (RtlUnicodeStringToAnsiString(&as, key, TRUE)) {
640 *status = NDIS_STATUS_RESOURCES;
641 return;
642 }
643
644 keystr = as.as_buf;
645
646 /*
647 * See if registry key is already in a list of known keys
648 * included with the driver.
649 */
650 TAILQ_FOREACH(e, device_get_sysctl_ctx(sc->ndis_dev), link) {
651 oidp = e->entry;
652 if (strcasecmp(oidp->oid_name, keystr) == 0) {
653 if (strcmp((char *)oidp->oid_arg1, "UNSET") == 0) {
654 RtlFreeAnsiString(&as);
655 *status = NDIS_STATUS_FAILURE;
656 return;
657 }
658
659 *status = ndis_encode_parm(block, oidp, type, parm);
660 RtlFreeAnsiString(&as);
661 return;
662 }
663 }
664
665 /*
666 * If the key didn't match, add it to the list of dynamically
667 * created ones. Sometimes, drivers refer to registry keys
668 * that aren't documented in their .INF files. These keys
669 * are supposed to be created by some sort of utility or
670 * control panel snap-in that comes with the driver software.
671 * Sometimes it's useful to be able to manipulate these.
672 * If the driver requests the key in the form of a string,
673 * make its default value an empty string, otherwise default
674 * it to "0".
675 */
676
677 if (type == ndis_parm_int || type == ndis_parm_hexint)
678 ndis_add_sysctl(sc, keystr, "(dynamic integer key)",
679 "UNSET", CTLFLAG_RW);
680 else
681 ndis_add_sysctl(sc, keystr, "(dynamic string key)",
682 "UNSET", CTLFLAG_RW);
683
684 RtlFreeAnsiString(&as);
685 *status = NDIS_STATUS_FAILURE;
686 }
687
688 static ndis_status
ndis_decode_parm(block,parm,val)689 ndis_decode_parm(block, parm, val)
690 ndis_miniport_block *block;
691 ndis_config_parm *parm;
692 char *val;
693 {
694 unicode_string *ustr;
695 ansi_string as;
696
697 switch(parm->ncp_type) {
698 case ndis_parm_string:
699 ustr = &parm->ncp_parmdata.ncp_stringdata;
700 if (RtlUnicodeStringToAnsiString(&as, ustr, TRUE))
701 return (NDIS_STATUS_RESOURCES);
702 bcopy(as.as_buf, val, as.as_len);
703 RtlFreeAnsiString(&as);
704 break;
705 case ndis_parm_int:
706 sprintf(val, "%d", parm->ncp_parmdata.ncp_intdata);
707 break;
708 case ndis_parm_hexint:
709 sprintf(val, "%xu", parm->ncp_parmdata.ncp_intdata);
710 break;
711 default:
712 return (NDIS_STATUS_FAILURE);
713 break;
714 }
715 return (NDIS_STATUS_SUCCESS);
716 }
717
718 static void
NdisWriteConfiguration(status,cfg,key,parm)719 NdisWriteConfiguration(status, cfg, key, parm)
720 ndis_status *status;
721 ndis_handle cfg;
722 unicode_string *key;
723 ndis_config_parm *parm;
724 {
725 ansi_string as;
726 char *keystr = NULL;
727 ndis_miniport_block *block;
728 struct ndis_softc *sc;
729 struct sysctl_oid *oidp;
730 struct sysctl_ctx_entry *e;
731 char val[256];
732
733 block = (ndis_miniport_block *)cfg;
734 sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
735
736 if (RtlUnicodeStringToAnsiString(&as, key, TRUE)) {
737 *status = NDIS_STATUS_RESOURCES;
738 return;
739 }
740
741 keystr = as.as_buf;
742
743 /* Decode the parameter into a string. */
744 bzero(val, sizeof(val));
745 *status = ndis_decode_parm(block, parm, val);
746 if (*status != NDIS_STATUS_SUCCESS) {
747 RtlFreeAnsiString(&as);
748 return;
749 }
750
751 /* See if the key already exists. */
752
753 TAILQ_FOREACH(e, device_get_sysctl_ctx(sc->ndis_dev), link) {
754 oidp = e->entry;
755 if (strcasecmp(oidp->oid_name, keystr) == 0) {
756 /* Found it, set the value. */
757 strcpy((char *)oidp->oid_arg1, val);
758 RtlFreeAnsiString(&as);
759 return;
760 }
761 }
762
763 /* Not found, add a new key with the specified value. */
764 ndis_add_sysctl(sc, keystr, "(dynamically set key)",
765 val, CTLFLAG_RW);
766
767 RtlFreeAnsiString(&as);
768 *status = NDIS_STATUS_SUCCESS;
769 }
770
771 static void
NdisCloseConfiguration(cfg)772 NdisCloseConfiguration(cfg)
773 ndis_handle cfg;
774 {
775 list_entry *e;
776 ndis_parmlist_entry *pe;
777 ndis_miniport_block *block;
778 ndis_config_parm *p;
779
780 block = (ndis_miniport_block *)cfg;
781
782 while (!IsListEmpty(&block->nmb_parmlist)) {
783 e = RemoveHeadList(&block->nmb_parmlist);
784 pe = CONTAINING_RECORD(e, ndis_parmlist_entry, np_list);
785 p = &pe->np_parm;
786 if (p->ncp_type == ndis_parm_string)
787 RtlFreeUnicodeString(&p->ncp_parmdata.ncp_stringdata);
788 ExFreePool(e);
789 }
790 }
791
792 /*
793 * Initialize a Windows spinlock.
794 */
795 static void
NdisAllocateSpinLock(lock)796 NdisAllocateSpinLock(lock)
797 ndis_spin_lock *lock;
798 {
799 KeInitializeSpinLock(&lock->nsl_spinlock);
800 lock->nsl_kirql = 0;
801 }
802
803 /*
804 * Destroy a Windows spinlock. This is a no-op for now. There are two reasons
805 * for this. One is that it's sort of superfluous: we don't have to do anything
806 * special to deallocate the spinlock. The other is that there are some buggy
807 * drivers which call NdisFreeSpinLock() _after_ calling NdisFreeMemory() on
808 * the block of memory in which the spinlock resides. (Yes, ADMtek, I'm
809 * talking to you.)
810 */
811 static void
NdisFreeSpinLock(lock)812 NdisFreeSpinLock(lock)
813 ndis_spin_lock *lock;
814 {
815 #ifdef notdef
816 KeInitializeSpinLock(&lock->nsl_spinlock);
817 lock->nsl_kirql = 0;
818 #endif
819 }
820
821 /*
822 * Acquire a spinlock from IRQL <= DISPATCH_LEVEL.
823 */
824
825 static void
NdisAcquireSpinLock(lock)826 NdisAcquireSpinLock(lock)
827 ndis_spin_lock *lock;
828 {
829 KeAcquireSpinLock(&lock->nsl_spinlock, &lock->nsl_kirql);
830 }
831
832 /*
833 * Release a spinlock from IRQL == DISPATCH_LEVEL.
834 */
835
836 static void
NdisReleaseSpinLock(lock)837 NdisReleaseSpinLock(lock)
838 ndis_spin_lock *lock;
839 {
840 KeReleaseSpinLock(&lock->nsl_spinlock, lock->nsl_kirql);
841 }
842
843 /*
844 * Acquire a spinlock when already running at IRQL == DISPATCH_LEVEL.
845 */
846 static void
NdisDprAcquireSpinLock(lock)847 NdisDprAcquireSpinLock(lock)
848 ndis_spin_lock *lock;
849 {
850 KeAcquireSpinLockAtDpcLevel(&lock->nsl_spinlock);
851 }
852
853 /*
854 * Release a spinlock without leaving IRQL == DISPATCH_LEVEL.
855 */
856 static void
NdisDprReleaseSpinLock(lock)857 NdisDprReleaseSpinLock(lock)
858 ndis_spin_lock *lock;
859 {
860 KeReleaseSpinLockFromDpcLevel(&lock->nsl_spinlock);
861 }
862
863 static void
NdisInitializeReadWriteLock(lock)864 NdisInitializeReadWriteLock(lock)
865 ndis_rw_lock *lock;
866 {
867 KeInitializeSpinLock(&lock->nrl_spinlock);
868 bzero((char *)&lock->nrl_rsvd, sizeof(lock->nrl_rsvd));
869 }
870
871 static void
NdisAcquireReadWriteLock(ndis_rw_lock * lock,uint8_t writeacc,ndis_lock_state * state)872 NdisAcquireReadWriteLock(ndis_rw_lock *lock, uint8_t writeacc,
873 ndis_lock_state *state)
874 {
875 if (writeacc == TRUE) {
876 KeAcquireSpinLock(&lock->nrl_spinlock, &state->nls_oldirql);
877 lock->nrl_rsvd[0]++;
878 } else
879 lock->nrl_rsvd[1]++;
880 }
881
882 static void
NdisReleaseReadWriteLock(lock,state)883 NdisReleaseReadWriteLock(lock, state)
884 ndis_rw_lock *lock;
885 ndis_lock_state *state;
886 {
887 if (lock->nrl_rsvd[0]) {
888 lock->nrl_rsvd[0]--;
889 KeReleaseSpinLock(&lock->nrl_spinlock, state->nls_oldirql);
890 } else
891 lock->nrl_rsvd[1]--;
892 }
893
894 static uint32_t
NdisReadPciSlotInformation(adapter,slot,offset,buf,len)895 NdisReadPciSlotInformation(adapter, slot, offset, buf, len)
896 ndis_handle adapter;
897 uint32_t slot;
898 uint32_t offset;
899 void *buf;
900 uint32_t len;
901 {
902 ndis_miniport_block *block;
903 uint32_t i;
904 char *dest;
905 device_t dev;
906
907 block = (ndis_miniport_block *)adapter;
908 dest = buf;
909 if (block == NULL)
910 return (0);
911
912 dev = block->nmb_physdeviceobj->do_devext;
913
914 /*
915 * I have a test system consisting of a Sun w2100z
916 * dual 2.4Ghz Opteron machine and an Atheros 802.11a/b/g
917 * "Aries" miniPCI NIC. (The NIC is installed in the
918 * machine using a miniPCI to PCI bus adapter card.)
919 * When running in SMP mode, I found that
920 * performing a large number of consecutive calls to
921 * NdisReadPciSlotInformation() would result in a
922 * sudden system reset (or in some cases a freeze).
923 * My suspicion is that the multiple reads are somehow
924 * triggering a fatal PCI bus error that leads to a
925 * machine check. The 1us delay in the loop below
926 * seems to prevent this problem.
927 */
928
929 for (i = 0; i < len; i++) {
930 DELAY(1);
931 dest[i] = pci_read_config(dev, i + offset, 1);
932 }
933
934 return (len);
935 }
936
937 static uint32_t
NdisWritePciSlotInformation(adapter,slot,offset,buf,len)938 NdisWritePciSlotInformation(adapter, slot, offset, buf, len)
939 ndis_handle adapter;
940 uint32_t slot;
941 uint32_t offset;
942 void *buf;
943 uint32_t len;
944 {
945 ndis_miniport_block *block;
946 uint32_t i;
947 char *dest;
948 device_t dev;
949
950 block = (ndis_miniport_block *)adapter;
951 dest = buf;
952
953 if (block == NULL)
954 return (0);
955
956 dev = block->nmb_physdeviceobj->do_devext;
957 for (i = 0; i < len; i++) {
958 DELAY(1);
959 pci_write_config(dev, i + offset, dest[i], 1);
960 }
961
962 return (len);
963 }
964
965 /*
966 * The errorlog routine uses a variable argument list, so we
967 * have to declare it this way.
968 */
969
970 #define ERRMSGLEN 512
971 static void
NdisWriteErrorLogEntry(ndis_handle adapter,ndis_error_code code,uint32_t numerrors,...)972 NdisWriteErrorLogEntry(ndis_handle adapter, ndis_error_code code,
973 uint32_t numerrors, ...)
974 {
975 ndis_miniport_block *block;
976 va_list ap;
977 int i, error;
978 char *str = NULL;
979 uint16_t flags;
980 device_t dev;
981 driver_object *drv;
982 struct ndis_softc *sc;
983 struct ifnet *ifp;
984 unicode_string us;
985 ansi_string as = { 0, 0, NULL };
986
987 block = (ndis_miniport_block *)adapter;
988 dev = block->nmb_physdeviceobj->do_devext;
989 drv = block->nmb_deviceobj->do_drvobj;
990 sc = device_get_softc(dev);
991 ifp = NDISUSB_GET_IFNET(sc);
992
993 if (ifp != NULL && ifp->if_flags & IFF_DEBUG) {
994 error = pe_get_message((vm_offset_t)drv->dro_driverstart,
995 code, &str, &i, &flags);
996 if (error == 0) {
997 if (flags & MESSAGE_RESOURCE_UNICODE) {
998 RtlInitUnicodeString(&us, (uint16_t *)str);
999 if (RtlUnicodeStringToAnsiString(&as,
1000 &us, TRUE) == STATUS_SUCCESS)
1001 str = as.as_buf;
1002 else
1003 str = NULL;
1004 }
1005 }
1006 }
1007
1008 device_printf(dev, "NDIS ERROR: %x (%s)\n", code,
1009 str == NULL ? "unknown error" : str);
1010
1011 if (ifp != NULL && ifp->if_flags & IFF_DEBUG) {
1012 device_printf(dev, "NDIS NUMERRORS: %x\n", numerrors);
1013 va_start(ap, numerrors);
1014 for (i = 0; i < numerrors; i++)
1015 device_printf(dev, "argptr: %p\n",
1016 va_arg(ap, void *));
1017 va_end(ap);
1018 }
1019
1020 if (as.as_len)
1021 RtlFreeAnsiString(&as);
1022 }
1023
1024 static void
ndis_map_cb(arg,segs,nseg,error)1025 ndis_map_cb(arg, segs, nseg, error)
1026 void *arg;
1027 bus_dma_segment_t *segs;
1028 int nseg;
1029 int error;
1030 {
1031 struct ndis_map_arg *ctx;
1032 int i;
1033
1034 if (error)
1035 return;
1036
1037 ctx = arg;
1038
1039 for (i = 0; i < nseg; i++) {
1040 ctx->nma_fraglist[i].npu_physaddr.np_quad = segs[i].ds_addr;
1041 ctx->nma_fraglist[i].npu_len = segs[i].ds_len;
1042 }
1043
1044 ctx->nma_cnt = nseg;
1045 }
1046
1047 static void
NdisMStartBufferPhysicalMapping(ndis_handle adapter,ndis_buffer * buf,uint32_t mapreg,uint8_t writedev,ndis_paddr_unit * addrarray,uint32_t * arraysize)1048 NdisMStartBufferPhysicalMapping(ndis_handle adapter, ndis_buffer *buf,
1049 uint32_t mapreg, uint8_t writedev, ndis_paddr_unit *addrarray,
1050 uint32_t *arraysize)
1051 {
1052 ndis_miniport_block *block;
1053 struct ndis_softc *sc;
1054 struct ndis_map_arg nma;
1055 bus_dmamap_t map;
1056 int error;
1057
1058 if (adapter == NULL)
1059 return;
1060
1061 block = (ndis_miniport_block *)adapter;
1062 sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
1063
1064 if (mapreg > sc->ndis_mmapcnt)
1065 return;
1066
1067 map = sc->ndis_mmaps[mapreg];
1068 nma.nma_fraglist = addrarray;
1069
1070 error = bus_dmamap_load(sc->ndis_mtag, map,
1071 MmGetMdlVirtualAddress(buf), MmGetMdlByteCount(buf), ndis_map_cb,
1072 (void *)&nma, BUS_DMA_NOWAIT);
1073
1074 if (error)
1075 return;
1076
1077 bus_dmamap_sync(sc->ndis_mtag, map,
1078 writedev ? BUS_DMASYNC_PREWRITE : BUS_DMASYNC_PREREAD);
1079
1080 *arraysize = nma.nma_cnt;
1081 }
1082
1083 static void
NdisMCompleteBufferPhysicalMapping(adapter,buf,mapreg)1084 NdisMCompleteBufferPhysicalMapping(adapter, buf, mapreg)
1085 ndis_handle adapter;
1086 ndis_buffer *buf;
1087 uint32_t mapreg;
1088 {
1089 ndis_miniport_block *block;
1090 struct ndis_softc *sc;
1091 bus_dmamap_t map;
1092
1093 if (adapter == NULL)
1094 return;
1095
1096 block = (ndis_miniport_block *)adapter;
1097 sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
1098
1099 if (mapreg > sc->ndis_mmapcnt)
1100 return;
1101
1102 map = sc->ndis_mmaps[mapreg];
1103
1104 bus_dmamap_sync(sc->ndis_mtag, map,
1105 BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE);
1106
1107 bus_dmamap_unload(sc->ndis_mtag, map);
1108 }
1109
1110 /*
1111 * This is an older (?) timer init routine which doesn't
1112 * accept a miniport context handle. Serialized miniports should
1113 * never call this function.
1114 */
1115
1116 static void
NdisInitializeTimer(timer,func,ctx)1117 NdisInitializeTimer(timer, func, ctx)
1118 ndis_timer *timer;
1119 ndis_timer_function func;
1120 void *ctx;
1121 {
1122 KeInitializeTimer(&timer->nt_ktimer);
1123 KeInitializeDpc(&timer->nt_kdpc, func, ctx);
1124 KeSetImportanceDpc(&timer->nt_kdpc, KDPC_IMPORTANCE_LOW);
1125 }
1126
1127 static void
ndis_timercall(dpc,timer,sysarg1,sysarg2)1128 ndis_timercall(dpc, timer, sysarg1, sysarg2)
1129 kdpc *dpc;
1130 ndis_miniport_timer *timer;
1131 void *sysarg1;
1132 void *sysarg2;
1133 {
1134 /*
1135 * Since we're called as a DPC, we should be running
1136 * at DISPATCH_LEVEL here. This means to acquire the
1137 * spinlock, we can use KeAcquireSpinLockAtDpcLevel()
1138 * rather than KeAcquireSpinLock().
1139 */
1140 if (NDIS_SERIALIZED(timer->nmt_block))
1141 KeAcquireSpinLockAtDpcLevel(&timer->nmt_block->nmb_lock);
1142
1143 MSCALL4(timer->nmt_timerfunc, dpc, timer->nmt_timerctx,
1144 sysarg1, sysarg2);
1145
1146 if (NDIS_SERIALIZED(timer->nmt_block))
1147 KeReleaseSpinLockFromDpcLevel(&timer->nmt_block->nmb_lock);
1148 }
1149
1150 /*
1151 * For a long time I wondered why there were two NDIS timer initialization
1152 * routines, and why this one needed an NDIS_MINIPORT_TIMER and the
1153 * MiniportAdapterHandle. The NDIS_MINIPORT_TIMER has its own callout
1154 * function and context pointers separate from those in the DPC, which
1155 * allows for another level of indirection: when the timer fires, we
1156 * can have our own timer function invoked, and from there we can call
1157 * the driver's function. But why go to all that trouble? Then it hit
1158 * me: for serialized miniports, the timer callouts are not re-entrant.
1159 * By trapping the callouts and having access to the MiniportAdapterHandle,
1160 * we can protect the driver callouts by acquiring the NDIS serialization
1161 * lock. This is essential for allowing serialized miniports to work
1162 * correctly on SMP systems. On UP hosts, setting IRQL to DISPATCH_LEVEL
1163 * is enough to prevent other threads from pre-empting you, but with
1164 * SMP, you must acquire a lock as well, otherwise the other CPU is
1165 * free to clobber you.
1166 */
1167 static void
NdisMInitializeTimer(timer,handle,func,ctx)1168 NdisMInitializeTimer(timer, handle, func, ctx)
1169 ndis_miniport_timer *timer;
1170 ndis_handle handle;
1171 ndis_timer_function func;
1172 void *ctx;
1173 {
1174 ndis_miniport_block *block;
1175 struct ndis_softc *sc;
1176
1177 block = (ndis_miniport_block *)handle;
1178 sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
1179
1180 /* Save the driver's funcptr and context */
1181
1182 timer->nmt_timerfunc = func;
1183 timer->nmt_timerctx = ctx;
1184 timer->nmt_block = handle;
1185
1186 /*
1187 * Set up the timer so it will call our intermediate DPC.
1188 * Be sure to use the wrapped entry point, since
1189 * ntoskrnl_run_dpc() expects to invoke a function with
1190 * Microsoft calling conventions.
1191 */
1192 KeInitializeTimer(&timer->nmt_ktimer);
1193 KeInitializeDpc(&timer->nmt_kdpc,
1194 ndis_findwrap((funcptr)ndis_timercall), timer);
1195 timer->nmt_ktimer.k_dpc = &timer->nmt_kdpc;
1196 }
1197
1198 /*
1199 * In Windows, there's both an NdisMSetTimer() and an NdisSetTimer(),
1200 * but the former is just a macro wrapper around the latter.
1201 */
1202 static void
NdisSetTimer(timer,msecs)1203 NdisSetTimer(timer, msecs)
1204 ndis_timer *timer;
1205 uint32_t msecs;
1206 {
1207 /*
1208 * KeSetTimer() wants the period in
1209 * hundred nanosecond intervals.
1210 */
1211 KeSetTimer(&timer->nt_ktimer,
1212 ((int64_t)msecs * -10000), &timer->nt_kdpc);
1213 }
1214
1215 static void
NdisMSetPeriodicTimer(timer,msecs)1216 NdisMSetPeriodicTimer(timer, msecs)
1217 ndis_miniport_timer *timer;
1218 uint32_t msecs;
1219 {
1220 KeSetTimerEx(&timer->nmt_ktimer,
1221 ((int64_t)msecs * -10000), msecs, &timer->nmt_kdpc);
1222 }
1223
1224 /*
1225 * Technically, this is really NdisCancelTimer(), but we also
1226 * (ab)use it for NdisMCancelTimer(), since in our implementation
1227 * we don't need the extra info in the ndis_miniport_timer
1228 * structure just to cancel a timer.
1229 */
1230
1231 static void
NdisMCancelTimer(timer,cancelled)1232 NdisMCancelTimer(timer, cancelled)
1233 ndis_timer *timer;
1234 uint8_t *cancelled;
1235 {
1236
1237 *cancelled = KeCancelTimer(&timer->nt_ktimer);
1238 }
1239
1240 static void
NdisMQueryAdapterResources(status,adapter,list,buflen)1241 NdisMQueryAdapterResources(status, adapter, list, buflen)
1242 ndis_status *status;
1243 ndis_handle adapter;
1244 ndis_resource_list *list;
1245 uint32_t *buflen;
1246 {
1247 ndis_miniport_block *block;
1248 struct ndis_softc *sc;
1249 int rsclen;
1250
1251 block = (ndis_miniport_block *)adapter;
1252 sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
1253
1254 rsclen = sizeof(ndis_resource_list) +
1255 (sizeof(cm_partial_resource_desc) * (sc->ndis_rescnt - 1));
1256 if (*buflen < rsclen) {
1257 *buflen = rsclen;
1258 *status = NDIS_STATUS_INVALID_LENGTH;
1259 return;
1260 }
1261
1262 bcopy((char *)block->nmb_rlist, (char *)list, rsclen);
1263 *status = NDIS_STATUS_SUCCESS;
1264 }
1265
1266 static ndis_status
NdisMRegisterIoPortRange(offset,adapter,port,numports)1267 NdisMRegisterIoPortRange(offset, adapter, port, numports)
1268 void **offset;
1269 ndis_handle adapter;
1270 uint32_t port;
1271 uint32_t numports;
1272 {
1273 struct ndis_miniport_block *block;
1274 struct ndis_softc *sc;
1275
1276 if (adapter == NULL)
1277 return (NDIS_STATUS_FAILURE);
1278
1279 block = (ndis_miniport_block *)adapter;
1280 sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
1281
1282 if (sc->ndis_res_io == NULL)
1283 return (NDIS_STATUS_FAILURE);
1284
1285 /* Don't let the device map more ports than we have. */
1286 if (rman_get_size(sc->ndis_res_io) < numports)
1287 return (NDIS_STATUS_INVALID_LENGTH);
1288
1289 *offset = (void *)(uintptr_t)rman_get_start(sc->ndis_res_io);
1290
1291 return (NDIS_STATUS_SUCCESS);
1292 }
1293
1294 static void
NdisMDeregisterIoPortRange(adapter,port,numports,offset)1295 NdisMDeregisterIoPortRange(adapter, port, numports, offset)
1296 ndis_handle adapter;
1297 uint32_t port;
1298 uint32_t numports;
1299 void *offset;
1300 {
1301 }
1302
1303 static void
NdisReadNetworkAddress(status,addr,addrlen,adapter)1304 NdisReadNetworkAddress(status, addr, addrlen, adapter)
1305 ndis_status *status;
1306 void **addr;
1307 uint32_t *addrlen;
1308 ndis_handle adapter;
1309 {
1310 struct ndis_softc *sc;
1311 struct ifnet *ifp;
1312 ndis_miniport_block *block;
1313 uint8_t empty[] = { 0, 0, 0, 0, 0, 0 };
1314
1315 block = (ndis_miniport_block *)adapter;
1316 sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
1317 ifp = NDISUSB_GET_IFNET(sc);
1318 if (ifp == NULL) {
1319 *status = NDIS_STATUS_FAILURE;
1320 return;
1321 }
1322
1323 if (ifp->if_addr == NULL ||
1324 bcmp(IF_LLADDR(sc->ifp), empty, ETHER_ADDR_LEN) == 0)
1325 *status = NDIS_STATUS_FAILURE;
1326 else {
1327 *addr = IF_LLADDR(sc->ifp);
1328 *addrlen = ETHER_ADDR_LEN;
1329 *status = NDIS_STATUS_SUCCESS;
1330 }
1331 }
1332
1333 static ndis_status
NdisQueryMapRegisterCount(bustype,cnt)1334 NdisQueryMapRegisterCount(bustype, cnt)
1335 uint32_t bustype;
1336 uint32_t *cnt;
1337 {
1338 *cnt = 8192;
1339 return (NDIS_STATUS_SUCCESS);
1340 }
1341
1342 static ndis_status
NdisMAllocateMapRegisters(ndis_handle adapter,uint32_t dmachannel,uint8_t dmasize,uint32_t physmapneeded,uint32_t maxmap)1343 NdisMAllocateMapRegisters(ndis_handle adapter, uint32_t dmachannel,
1344 uint8_t dmasize, uint32_t physmapneeded, uint32_t maxmap)
1345 {
1346 struct ndis_softc *sc;
1347 ndis_miniport_block *block;
1348 int error, i, nseg = NDIS_MAXSEG;
1349
1350 block = (ndis_miniport_block *)adapter;
1351 sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
1352
1353 sc->ndis_mmaps = malloc(sizeof(bus_dmamap_t) * physmapneeded,
1354 M_DEVBUF, M_NOWAIT|M_ZERO);
1355
1356 if (sc->ndis_mmaps == NULL)
1357 return (NDIS_STATUS_RESOURCES);
1358
1359 error = bus_dma_tag_create(sc->ndis_parent_tag, ETHER_ALIGN, 0,
1360 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL,
1361 NULL, maxmap * nseg, nseg, maxmap, BUS_DMA_ALLOCNOW,
1362 NULL, NULL, &sc->ndis_mtag);
1363
1364 if (error) {
1365 free(sc->ndis_mmaps, M_DEVBUF);
1366 return (NDIS_STATUS_RESOURCES);
1367 }
1368
1369 for (i = 0; i < physmapneeded; i++)
1370 bus_dmamap_create(sc->ndis_mtag, 0, &sc->ndis_mmaps[i]);
1371
1372 sc->ndis_mmapcnt = physmapneeded;
1373
1374 return (NDIS_STATUS_SUCCESS);
1375 }
1376
1377 static void
NdisMFreeMapRegisters(adapter)1378 NdisMFreeMapRegisters(adapter)
1379 ndis_handle adapter;
1380 {
1381 struct ndis_softc *sc;
1382 ndis_miniport_block *block;
1383 int i;
1384
1385 block = (ndis_miniport_block *)adapter;
1386 sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
1387
1388 for (i = 0; i < sc->ndis_mmapcnt; i++)
1389 bus_dmamap_destroy(sc->ndis_mtag, sc->ndis_mmaps[i]);
1390
1391 free(sc->ndis_mmaps, M_DEVBUF);
1392
1393 bus_dma_tag_destroy(sc->ndis_mtag);
1394 }
1395
1396 static void
ndis_mapshared_cb(arg,segs,nseg,error)1397 ndis_mapshared_cb(arg, segs, nseg, error)
1398 void *arg;
1399 bus_dma_segment_t *segs;
1400 int nseg;
1401 int error;
1402 {
1403 ndis_physaddr *p;
1404
1405 if (error || nseg > 1)
1406 return;
1407
1408 p = arg;
1409
1410 p->np_quad = segs[0].ds_addr;
1411 }
1412
1413 /*
1414 * This maps to bus_dmamem_alloc().
1415 */
1416
1417 static void
NdisMAllocateSharedMemory(ndis_handle adapter,uint32_t len,uint8_t cached,void ** vaddr,ndis_physaddr * paddr)1418 NdisMAllocateSharedMemory(ndis_handle adapter, uint32_t len, uint8_t cached,
1419 void **vaddr, ndis_physaddr *paddr)
1420 {
1421 ndis_miniport_block *block;
1422 struct ndis_softc *sc;
1423 struct ndis_shmem *sh;
1424 int error;
1425
1426 if (adapter == NULL)
1427 return;
1428
1429 block = (ndis_miniport_block *)adapter;
1430 sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
1431
1432 sh = malloc(sizeof(struct ndis_shmem), M_DEVBUF, M_NOWAIT|M_ZERO);
1433 if (sh == NULL)
1434 return;
1435
1436 InitializeListHead(&sh->ndis_list);
1437
1438 /*
1439 * When performing shared memory allocations, create a tag
1440 * with a lowaddr limit that restricts physical memory mappings
1441 * so that they all fall within the first 1GB of memory.
1442 * At least one device/driver combination (Linksys Instant
1443 * Wireless PCI Card V2.7, Broadcom 802.11b) seems to have
1444 * problems with performing DMA operations with physical
1445 * addresses that lie above the 1GB mark. I don't know if this
1446 * is a hardware limitation or if the addresses are being
1447 * truncated within the driver, but this seems to be the only
1448 * way to make these cards work reliably in systems with more
1449 * than 1GB of physical memory.
1450 */
1451
1452 error = bus_dma_tag_create(sc->ndis_parent_tag, 64,
1453 0, NDIS_BUS_SPACE_SHARED_MAXADDR, BUS_SPACE_MAXADDR, NULL,
1454 NULL, len, 1, len, BUS_DMA_ALLOCNOW, NULL, NULL,
1455 &sh->ndis_stag);
1456
1457 if (error) {
1458 free(sh, M_DEVBUF);
1459 return;
1460 }
1461
1462 error = bus_dmamem_alloc(sh->ndis_stag, vaddr,
1463 BUS_DMA_NOWAIT | BUS_DMA_ZERO, &sh->ndis_smap);
1464
1465 if (error) {
1466 bus_dma_tag_destroy(sh->ndis_stag);
1467 free(sh, M_DEVBUF);
1468 return;
1469 }
1470
1471 error = bus_dmamap_load(sh->ndis_stag, sh->ndis_smap, *vaddr,
1472 len, ndis_mapshared_cb, (void *)paddr, BUS_DMA_NOWAIT);
1473
1474 if (error) {
1475 bus_dmamem_free(sh->ndis_stag, *vaddr, sh->ndis_smap);
1476 bus_dma_tag_destroy(sh->ndis_stag);
1477 free(sh, M_DEVBUF);
1478 return;
1479 }
1480
1481 /*
1482 * Save the physical address along with the source address.
1483 * The AirGo MIMO driver will call NdisMFreeSharedMemory()
1484 * with a bogus virtual address sometimes, but with a valid
1485 * physical address. To keep this from causing trouble, we
1486 * use the physical address to as a sanity check in case
1487 * searching based on the virtual address fails.
1488 */
1489
1490 NDIS_LOCK(sc);
1491 sh->ndis_paddr.np_quad = paddr->np_quad;
1492 sh->ndis_saddr = *vaddr;
1493 InsertHeadList((&sc->ndis_shlist), (&sh->ndis_list));
1494 NDIS_UNLOCK(sc);
1495 }
1496
1497 struct ndis_allocwork {
1498 uint32_t na_len;
1499 uint8_t na_cached;
1500 void *na_ctx;
1501 io_workitem *na_iw;
1502 };
1503
1504 static void
ndis_asyncmem_complete(dobj,arg)1505 ndis_asyncmem_complete(dobj, arg)
1506 device_object *dobj;
1507 void *arg;
1508 {
1509 ndis_miniport_block *block;
1510 struct ndis_softc *sc;
1511 struct ndis_allocwork *w;
1512 void *vaddr;
1513 ndis_physaddr paddr;
1514 ndis_allocdone_handler donefunc;
1515
1516 w = arg;
1517 block = (ndis_miniport_block *)dobj->do_devext;
1518 sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
1519
1520 vaddr = NULL;
1521 paddr.np_quad = 0;
1522
1523 donefunc = sc->ndis_chars->nmc_allocate_complete_func;
1524 NdisMAllocateSharedMemory(block, w->na_len,
1525 w->na_cached, &vaddr, &paddr);
1526 MSCALL5(donefunc, block, vaddr, &paddr, w->na_len, w->na_ctx);
1527
1528 IoFreeWorkItem(w->na_iw);
1529 free(w, M_DEVBUF);
1530 }
1531
1532 static ndis_status
NdisMAllocateSharedMemoryAsync(ndis_handle adapter,uint32_t len,uint8_t cached,void * ctx)1533 NdisMAllocateSharedMemoryAsync(ndis_handle adapter, uint32_t len,
1534 uint8_t cached, void *ctx)
1535 {
1536 ndis_miniport_block *block;
1537 struct ndis_allocwork *w;
1538 io_workitem *iw;
1539 io_workitem_func ifw;
1540
1541 if (adapter == NULL)
1542 return (NDIS_STATUS_FAILURE);
1543
1544 block = adapter;
1545
1546 iw = IoAllocateWorkItem(block->nmb_deviceobj);
1547 if (iw == NULL)
1548 return (NDIS_STATUS_FAILURE);
1549
1550 w = malloc(sizeof(struct ndis_allocwork), M_TEMP, M_NOWAIT);
1551
1552 if (w == NULL)
1553 return (NDIS_STATUS_FAILURE);
1554
1555 w->na_cached = cached;
1556 w->na_len = len;
1557 w->na_ctx = ctx;
1558 w->na_iw = iw;
1559
1560 ifw = (io_workitem_func)ndis_findwrap((funcptr)ndis_asyncmem_complete);
1561 IoQueueWorkItem(iw, ifw, WORKQUEUE_DELAYED, w);
1562
1563 return (NDIS_STATUS_PENDING);
1564 }
1565
1566 static void
NdisMFreeSharedMemory(ndis_handle adapter,uint32_t len,uint8_t cached,void * vaddr,ndis_physaddr paddr)1567 NdisMFreeSharedMemory(ndis_handle adapter, uint32_t len, uint8_t cached,
1568 void *vaddr, ndis_physaddr paddr)
1569 {
1570 ndis_miniport_block *block;
1571 struct ndis_softc *sc;
1572 struct ndis_shmem *sh = NULL;
1573 list_entry *l;
1574
1575 if (vaddr == NULL || adapter == NULL)
1576 return;
1577
1578 block = (ndis_miniport_block *)adapter;
1579 sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
1580
1581 /* Sanity check: is list empty? */
1582
1583 if (IsListEmpty(&sc->ndis_shlist))
1584 return;
1585
1586 NDIS_LOCK(sc);
1587 l = sc->ndis_shlist.nle_flink;
1588 while (l != &sc->ndis_shlist) {
1589 sh = CONTAINING_RECORD(l, struct ndis_shmem, ndis_list);
1590 if (sh->ndis_saddr == vaddr)
1591 break;
1592 /*
1593 * Check the physaddr too, just in case the driver lied
1594 * about the virtual address.
1595 */
1596 if (sh->ndis_paddr.np_quad == paddr.np_quad)
1597 break;
1598 l = l->nle_flink;
1599 }
1600
1601 if (sh == NULL) {
1602 NDIS_UNLOCK(sc);
1603 printf("NDIS: buggy driver tried to free "
1604 "invalid shared memory: vaddr: %p paddr: 0x%jx\n",
1605 vaddr, (uintmax_t)paddr.np_quad);
1606 return;
1607 }
1608
1609 RemoveEntryList(&sh->ndis_list);
1610
1611 NDIS_UNLOCK(sc);
1612
1613 bus_dmamap_unload(sh->ndis_stag, sh->ndis_smap);
1614 bus_dmamem_free(sh->ndis_stag, sh->ndis_saddr, sh->ndis_smap);
1615 bus_dma_tag_destroy(sh->ndis_stag);
1616
1617 free(sh, M_DEVBUF);
1618 }
1619
1620 static ndis_status
NdisMMapIoSpace(vaddr,adapter,paddr,len)1621 NdisMMapIoSpace(vaddr, adapter, paddr, len)
1622 void **vaddr;
1623 ndis_handle adapter;
1624 ndis_physaddr paddr;
1625 uint32_t len;
1626 {
1627 if (adapter == NULL)
1628 return (NDIS_STATUS_FAILURE);
1629
1630 *vaddr = MmMapIoSpace(paddr.np_quad, len, 0);
1631
1632 if (*vaddr == NULL)
1633 return (NDIS_STATUS_FAILURE);
1634
1635 return (NDIS_STATUS_SUCCESS);
1636 }
1637
1638 static void
NdisMUnmapIoSpace(adapter,vaddr,len)1639 NdisMUnmapIoSpace(adapter, vaddr, len)
1640 ndis_handle adapter;
1641 void *vaddr;
1642 uint32_t len;
1643 {
1644 MmUnmapIoSpace(vaddr, len);
1645 }
1646
1647 static uint32_t
NdisGetCacheFillSize(void)1648 NdisGetCacheFillSize(void)
1649 {
1650 return (128);
1651 }
1652
1653 static void *
NdisGetRoutineAddress(ustr)1654 NdisGetRoutineAddress(ustr)
1655 unicode_string *ustr;
1656 {
1657 ansi_string astr;
1658
1659 if (RtlUnicodeStringToAnsiString(&astr, ustr, TRUE))
1660 return (NULL);
1661 return (ndis_get_routine_address(ndis_functbl, astr.as_buf));
1662 }
1663
1664 static uint32_t
NdisMGetDmaAlignment(handle)1665 NdisMGetDmaAlignment(handle)
1666 ndis_handle handle;
1667 {
1668 return (16);
1669 }
1670
1671 /*
1672 * NDIS has two methods for dealing with NICs that support DMA.
1673 * One is to just pass packets to the driver and let it call
1674 * NdisMStartBufferPhysicalMapping() to map each buffer in the packet
1675 * all by itself, and the other is to let the NDIS library handle the
1676 * buffer mapping internally, and hand the driver an already populated
1677 * scatter/gather fragment list. If the driver calls
1678 * NdisMInitializeScatterGatherDma(), it wants to use the latter
1679 * method.
1680 */
1681
1682 static ndis_status
NdisMInitializeScatterGatherDma(ndis_handle adapter,uint8_t is64,uint32_t maxphysmap)1683 NdisMInitializeScatterGatherDma(ndis_handle adapter, uint8_t is64,
1684 uint32_t maxphysmap)
1685 {
1686 struct ndis_softc *sc;
1687 ndis_miniport_block *block;
1688 int error;
1689
1690 if (adapter == NULL)
1691 return (NDIS_STATUS_FAILURE);
1692 block = (ndis_miniport_block *)adapter;
1693 sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
1694
1695 /* Don't do this twice. */
1696 if (sc->ndis_sc == 1)
1697 return (NDIS_STATUS_SUCCESS);
1698
1699 error = bus_dma_tag_create(sc->ndis_parent_tag, ETHER_ALIGN, 0,
1700 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL,
1701 MCLBYTES * NDIS_MAXSEG, NDIS_MAXSEG, MCLBYTES, BUS_DMA_ALLOCNOW,
1702 NULL, NULL, &sc->ndis_ttag);
1703
1704 sc->ndis_sc = 1;
1705
1706 return (NDIS_STATUS_SUCCESS);
1707 }
1708
1709 void
NdisAllocatePacketPool(status,pool,descnum,protrsvdlen)1710 NdisAllocatePacketPool(status, pool, descnum, protrsvdlen)
1711 ndis_status *status;
1712 ndis_handle *pool;
1713 uint32_t descnum;
1714 uint32_t protrsvdlen;
1715 {
1716 ndis_packet_pool *p;
1717 ndis_packet *packets;
1718 int i;
1719
1720 p = ExAllocatePoolWithTag(NonPagedPool, sizeof(ndis_packet_pool), 0);
1721 if (p == NULL) {
1722 *status = NDIS_STATUS_RESOURCES;
1723 return;
1724 }
1725
1726 p->np_cnt = descnum + NDIS_POOL_EXTRA;
1727 p->np_protrsvd = protrsvdlen;
1728 p->np_len = sizeof(ndis_packet) + protrsvdlen;
1729
1730 packets = ExAllocatePoolWithTag(NonPagedPool, p->np_cnt *
1731 p->np_len, 0);
1732
1733 if (packets == NULL) {
1734 ExFreePool(p);
1735 *status = NDIS_STATUS_RESOURCES;
1736 return;
1737 }
1738
1739 p->np_pktmem = packets;
1740
1741 for (i = 0; i < p->np_cnt; i++)
1742 InterlockedPushEntrySList(&p->np_head,
1743 (struct slist_entry *)&packets[i]);
1744
1745 #ifdef NDIS_DEBUG_PACKETS
1746 p->np_dead = 0;
1747 KeInitializeSpinLock(&p->np_lock);
1748 KeInitializeEvent(&p->np_event, EVENT_TYPE_NOTIFY, TRUE);
1749 #endif
1750
1751 *pool = p;
1752 *status = NDIS_STATUS_SUCCESS;
1753 }
1754
1755 void
NdisAllocatePacketPoolEx(status,pool,descnum,oflowdescnum,protrsvdlen)1756 NdisAllocatePacketPoolEx(status, pool, descnum, oflowdescnum, protrsvdlen)
1757 ndis_status *status;
1758 ndis_handle *pool;
1759 uint32_t descnum;
1760 uint32_t oflowdescnum;
1761 uint32_t protrsvdlen;
1762 {
1763 return (NdisAllocatePacketPool(status, pool,
1764 descnum + oflowdescnum, protrsvdlen));
1765 }
1766
1767 uint32_t
NdisPacketPoolUsage(pool)1768 NdisPacketPoolUsage(pool)
1769 ndis_handle pool;
1770 {
1771 ndis_packet_pool *p;
1772
1773 p = (ndis_packet_pool *)pool;
1774 return (p->np_cnt - ExQueryDepthSList(&p->np_head));
1775 }
1776
1777 void
NdisFreePacketPool(pool)1778 NdisFreePacketPool(pool)
1779 ndis_handle pool;
1780 {
1781 ndis_packet_pool *p;
1782 int usage;
1783 #ifdef NDIS_DEBUG_PACKETS
1784 uint8_t irql;
1785 #endif
1786
1787 p = (ndis_packet_pool *)pool;
1788
1789 #ifdef NDIS_DEBUG_PACKETS
1790 KeAcquireSpinLock(&p->np_lock, &irql);
1791 #endif
1792
1793 usage = NdisPacketPoolUsage(pool);
1794
1795 #ifdef NDIS_DEBUG_PACKETS
1796 if (usage) {
1797 p->np_dead = 1;
1798 KeResetEvent(&p->np_event);
1799 KeReleaseSpinLock(&p->np_lock, irql);
1800 KeWaitForSingleObject(&p->np_event, 0, 0, FALSE, NULL);
1801 } else
1802 KeReleaseSpinLock(&p->np_lock, irql);
1803 #endif
1804
1805 ExFreePool(p->np_pktmem);
1806 ExFreePool(p);
1807 }
1808
1809 void
NdisAllocatePacket(status,packet,pool)1810 NdisAllocatePacket(status, packet, pool)
1811 ndis_status *status;
1812 ndis_packet **packet;
1813 ndis_handle pool;
1814 {
1815 ndis_packet_pool *p;
1816 ndis_packet *pkt;
1817 #ifdef NDIS_DEBUG_PACKETS
1818 uint8_t irql;
1819 #endif
1820
1821 p = (ndis_packet_pool *)pool;
1822
1823 #ifdef NDIS_DEBUG_PACKETS
1824 KeAcquireSpinLock(&p->np_lock, &irql);
1825 if (p->np_dead) {
1826 KeReleaseSpinLock(&p->np_lock, irql);
1827 printf("NDIS: tried to allocate packet from dead pool %p\n",
1828 pool);
1829 *status = NDIS_STATUS_RESOURCES;
1830 return;
1831 }
1832 #endif
1833
1834 pkt = (ndis_packet *)InterlockedPopEntrySList(&p->np_head);
1835
1836 #ifdef NDIS_DEBUG_PACKETS
1837 KeReleaseSpinLock(&p->np_lock, irql);
1838 #endif
1839
1840 if (pkt == NULL) {
1841 *status = NDIS_STATUS_RESOURCES;
1842 return;
1843 }
1844
1845 bzero((char *)pkt, sizeof(ndis_packet));
1846
1847 /* Save pointer to the pool. */
1848 pkt->np_private.npp_pool = pool;
1849
1850 /* Set the oob offset pointer. Lots of things expect this. */
1851 pkt->np_private.npp_packetooboffset = offsetof(ndis_packet, np_oob);
1852
1853 /*
1854 * We must initialize the packet flags correctly in order
1855 * for the NDIS_SET_PACKET_MEDIA_SPECIFIC_INFO() and
1856 * NDIS_GET_PACKET_MEDIA_SPECIFIC_INFO() macros to work
1857 * correctly.
1858 */
1859 pkt->np_private.npp_ndispktflags = NDIS_PACKET_ALLOCATED_BY_NDIS;
1860 pkt->np_private.npp_validcounts = FALSE;
1861
1862 *packet = pkt;
1863
1864 *status = NDIS_STATUS_SUCCESS;
1865 }
1866
1867 void
NdisFreePacket(packet)1868 NdisFreePacket(packet)
1869 ndis_packet *packet;
1870 {
1871 ndis_packet_pool *p;
1872 #ifdef NDIS_DEBUG_PACKETS
1873 uint8_t irql;
1874 #endif
1875
1876 p = (ndis_packet_pool *)packet->np_private.npp_pool;
1877
1878 #ifdef NDIS_DEBUG_PACKETS
1879 KeAcquireSpinLock(&p->np_lock, &irql);
1880 #endif
1881
1882 InterlockedPushEntrySList(&p->np_head, (slist_entry *)packet);
1883
1884 #ifdef NDIS_DEBUG_PACKETS
1885 if (p->np_dead) {
1886 if (ExQueryDepthSList(&p->np_head) == p->np_cnt)
1887 KeSetEvent(&p->np_event, IO_NO_INCREMENT, FALSE);
1888 }
1889 KeReleaseSpinLock(&p->np_lock, irql);
1890 #endif
1891 }
1892
1893 static void
NdisUnchainBufferAtFront(packet,buf)1894 NdisUnchainBufferAtFront(packet, buf)
1895 ndis_packet *packet;
1896 ndis_buffer **buf;
1897 {
1898 ndis_packet_private *priv;
1899
1900 if (packet == NULL || buf == NULL)
1901 return;
1902
1903 priv = &packet->np_private;
1904
1905 priv->npp_validcounts = FALSE;
1906
1907 if (priv->npp_head == priv->npp_tail) {
1908 *buf = priv->npp_head;
1909 priv->npp_head = priv->npp_tail = NULL;
1910 } else {
1911 *buf = priv->npp_head;
1912 priv->npp_head = (*buf)->mdl_next;
1913 }
1914 }
1915
1916 static void
NdisUnchainBufferAtBack(packet,buf)1917 NdisUnchainBufferAtBack(packet, buf)
1918 ndis_packet *packet;
1919 ndis_buffer **buf;
1920 {
1921 ndis_packet_private *priv;
1922 ndis_buffer *tmp;
1923
1924 if (packet == NULL || buf == NULL)
1925 return;
1926
1927 priv = &packet->np_private;
1928
1929 priv->npp_validcounts = FALSE;
1930
1931 if (priv->npp_head == priv->npp_tail) {
1932 *buf = priv->npp_head;
1933 priv->npp_head = priv->npp_tail = NULL;
1934 } else {
1935 *buf = priv->npp_tail;
1936 tmp = priv->npp_head;
1937 while (tmp->mdl_next != priv->npp_tail)
1938 tmp = tmp->mdl_next;
1939 priv->npp_tail = tmp;
1940 tmp->mdl_next = NULL;
1941 }
1942 }
1943
1944 /*
1945 * The NDIS "buffer" is really an MDL (memory descriptor list)
1946 * which is used to describe a buffer in a way that allows it
1947 * to mapped into different contexts. We have to be careful how
1948 * we handle them: in some versions of Windows, the NdisFreeBuffer()
1949 * routine is an actual function in the NDIS API, but in others
1950 * it's just a macro wrapper around IoFreeMdl(). There's really
1951 * no way to use the 'descnum' parameter to count how many
1952 * "buffers" are allocated since in order to use IoFreeMdl() to
1953 * dispose of a buffer, we have to use IoAllocateMdl() to allocate
1954 * them, and IoAllocateMdl() just grabs them out of the heap.
1955 */
1956
1957 static void
NdisAllocateBufferPool(status,pool,descnum)1958 NdisAllocateBufferPool(status, pool, descnum)
1959 ndis_status *status;
1960 ndis_handle *pool;
1961 uint32_t descnum;
1962 {
1963
1964 /*
1965 * The only thing we can really do here is verify that descnum
1966 * is a reasonable value, but I really don't know what to check
1967 * it against.
1968 */
1969
1970 *pool = NonPagedPool;
1971 *status = NDIS_STATUS_SUCCESS;
1972 }
1973
1974 static void
NdisFreeBufferPool(pool)1975 NdisFreeBufferPool(pool)
1976 ndis_handle pool;
1977 {
1978 }
1979
1980 static void
NdisAllocateBuffer(status,buffer,pool,vaddr,len)1981 NdisAllocateBuffer(status, buffer, pool, vaddr, len)
1982 ndis_status *status;
1983 ndis_buffer **buffer;
1984 ndis_handle pool;
1985 void *vaddr;
1986 uint32_t len;
1987 {
1988 ndis_buffer *buf;
1989
1990 buf = IoAllocateMdl(vaddr, len, FALSE, FALSE, NULL);
1991 if (buf == NULL) {
1992 *status = NDIS_STATUS_RESOURCES;
1993 return;
1994 }
1995
1996 MmBuildMdlForNonPagedPool(buf);
1997
1998 *buffer = buf;
1999 *status = NDIS_STATUS_SUCCESS;
2000 }
2001
2002 static void
NdisFreeBuffer(buf)2003 NdisFreeBuffer(buf)
2004 ndis_buffer *buf;
2005 {
2006 IoFreeMdl(buf);
2007 }
2008
2009 /* Aw c'mon. */
2010
2011 static uint32_t
NdisBufferLength(buf)2012 NdisBufferLength(buf)
2013 ndis_buffer *buf;
2014 {
2015 return (MmGetMdlByteCount(buf));
2016 }
2017
2018 /*
2019 * Get the virtual address and length of a buffer.
2020 * Note: the vaddr argument is optional.
2021 */
2022
2023 static void
NdisQueryBuffer(buf,vaddr,len)2024 NdisQueryBuffer(buf, vaddr, len)
2025 ndis_buffer *buf;
2026 void **vaddr;
2027 uint32_t *len;
2028 {
2029 if (vaddr != NULL)
2030 *vaddr = MmGetMdlVirtualAddress(buf);
2031 *len = MmGetMdlByteCount(buf);
2032 }
2033
2034 /* Same as above -- we don't care about the priority. */
2035
2036 static void
NdisQueryBufferSafe(buf,vaddr,len,prio)2037 NdisQueryBufferSafe(buf, vaddr, len, prio)
2038 ndis_buffer *buf;
2039 void **vaddr;
2040 uint32_t *len;
2041 uint32_t prio;
2042 {
2043 if (vaddr != NULL)
2044 *vaddr = MmGetMdlVirtualAddress(buf);
2045 *len = MmGetMdlByteCount(buf);
2046 }
2047
2048 /* Damnit Microsoft!! How many ways can you do the same thing?! */
2049
2050 static void *
NdisBufferVirtualAddress(buf)2051 NdisBufferVirtualAddress(buf)
2052 ndis_buffer *buf;
2053 {
2054 return (MmGetMdlVirtualAddress(buf));
2055 }
2056
2057 static void *
NdisBufferVirtualAddressSafe(buf,prio)2058 NdisBufferVirtualAddressSafe(buf, prio)
2059 ndis_buffer *buf;
2060 uint32_t prio;
2061 {
2062 return (MmGetMdlVirtualAddress(buf));
2063 }
2064
2065 static void
NdisAdjustBufferLength(buf,len)2066 NdisAdjustBufferLength(buf, len)
2067 ndis_buffer *buf;
2068 int len;
2069 {
2070 MmGetMdlByteCount(buf) = len;
2071 }
2072
2073 static uint32_t
NdisInterlockedIncrement(addend)2074 NdisInterlockedIncrement(addend)
2075 uint32_t *addend;
2076 {
2077 atomic_add_long((u_long *)addend, 1);
2078 return (*addend);
2079 }
2080
2081 static uint32_t
NdisInterlockedDecrement(addend)2082 NdisInterlockedDecrement(addend)
2083 uint32_t *addend;
2084 {
2085 atomic_subtract_long((u_long *)addend, 1);
2086 return (*addend);
2087 }
2088
2089 static uint32_t
NdisGetVersion(void)2090 NdisGetVersion(void)
2091 {
2092 return (0x00050001);
2093 }
2094
2095 static void
NdisInitializeEvent(event)2096 NdisInitializeEvent(event)
2097 ndis_event *event;
2098 {
2099 /*
2100 * NDIS events are always notification
2101 * events, and should be initialized to the
2102 * not signaled state.
2103 */
2104 KeInitializeEvent(&event->ne_event, EVENT_TYPE_NOTIFY, FALSE);
2105 }
2106
2107 static void
NdisSetEvent(event)2108 NdisSetEvent(event)
2109 ndis_event *event;
2110 {
2111 KeSetEvent(&event->ne_event, IO_NO_INCREMENT, FALSE);
2112 }
2113
2114 static void
NdisResetEvent(event)2115 NdisResetEvent(event)
2116 ndis_event *event;
2117 {
2118 KeResetEvent(&event->ne_event);
2119 }
2120
2121 static uint8_t
NdisWaitEvent(event,msecs)2122 NdisWaitEvent(event, msecs)
2123 ndis_event *event;
2124 uint32_t msecs;
2125 {
2126 int64_t duetime;
2127 uint32_t rval;
2128
2129 duetime = ((int64_t)msecs * -10000);
2130 rval = KeWaitForSingleObject(event,
2131 0, 0, TRUE, msecs ? & duetime : NULL);
2132
2133 if (rval == STATUS_TIMEOUT)
2134 return (FALSE);
2135
2136 return (TRUE);
2137 }
2138
2139 static ndis_status
NdisUnicodeStringToAnsiString(dstr,sstr)2140 NdisUnicodeStringToAnsiString(dstr, sstr)
2141 ansi_string *dstr;
2142 unicode_string *sstr;
2143 {
2144 uint32_t rval;
2145
2146 rval = RtlUnicodeStringToAnsiString(dstr, sstr, FALSE);
2147
2148 if (rval == STATUS_INSUFFICIENT_RESOURCES)
2149 return (NDIS_STATUS_RESOURCES);
2150 if (rval)
2151 return (NDIS_STATUS_FAILURE);
2152
2153 return (NDIS_STATUS_SUCCESS);
2154 }
2155
2156 static ndis_status
NdisAnsiStringToUnicodeString(dstr,sstr)2157 NdisAnsiStringToUnicodeString(dstr, sstr)
2158 unicode_string *dstr;
2159 ansi_string *sstr;
2160 {
2161 uint32_t rval;
2162
2163 rval = RtlAnsiStringToUnicodeString(dstr, sstr, FALSE);
2164
2165 if (rval == STATUS_INSUFFICIENT_RESOURCES)
2166 return (NDIS_STATUS_RESOURCES);
2167 if (rval)
2168 return (NDIS_STATUS_FAILURE);
2169
2170 return (NDIS_STATUS_SUCCESS);
2171 }
2172
2173 static ndis_status
NdisMPciAssignResources(adapter,slot,list)2174 NdisMPciAssignResources(adapter, slot, list)
2175 ndis_handle adapter;
2176 uint32_t slot;
2177 ndis_resource_list **list;
2178 {
2179 ndis_miniport_block *block;
2180
2181 if (adapter == NULL || list == NULL)
2182 return (NDIS_STATUS_FAILURE);
2183
2184 block = (ndis_miniport_block *)adapter;
2185 *list = block->nmb_rlist;
2186
2187 return (NDIS_STATUS_SUCCESS);
2188 }
2189
2190 static uint8_t
ndis_intr(iobj,arg)2191 ndis_intr(iobj, arg)
2192 kinterrupt *iobj;
2193 void *arg;
2194 {
2195 struct ndis_softc *sc;
2196 uint8_t is_our_intr = FALSE;
2197 int call_isr = 0;
2198 ndis_miniport_interrupt *intr;
2199
2200 sc = arg;
2201 intr = sc->ndis_block->nmb_interrupt;
2202
2203 if (intr == NULL || sc->ndis_block->nmb_miniportadapterctx == NULL)
2204 return (FALSE);
2205
2206 if (sc->ndis_block->nmb_interrupt->ni_isrreq == TRUE)
2207 MSCALL3(intr->ni_isrfunc, &is_our_intr, &call_isr,
2208 sc->ndis_block->nmb_miniportadapterctx);
2209 else {
2210 MSCALL1(sc->ndis_chars->nmc_disable_interrupts_func,
2211 sc->ndis_block->nmb_miniportadapterctx);
2212 call_isr = 1;
2213 }
2214
2215 if (call_isr)
2216 IoRequestDpc(sc->ndis_block->nmb_deviceobj, NULL, sc);
2217
2218 return (is_our_intr);
2219 }
2220
2221 static void
ndis_intrhand(dpc,intr,sysarg1,sysarg2)2222 ndis_intrhand(dpc, intr, sysarg1, sysarg2)
2223 kdpc *dpc;
2224 ndis_miniport_interrupt *intr;
2225 void *sysarg1;
2226 void *sysarg2;
2227 {
2228 struct ndis_softc *sc;
2229 ndis_miniport_block *block;
2230 ndis_handle adapter;
2231
2232 block = intr->ni_block;
2233 adapter = block->nmb_miniportadapterctx;
2234 sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
2235
2236 if (NDIS_SERIALIZED(sc->ndis_block))
2237 KeAcquireSpinLockAtDpcLevel(&block->nmb_lock);
2238
2239 MSCALL1(intr->ni_dpcfunc, adapter);
2240
2241 /* If there's a MiniportEnableInterrupt() routine, call it. */
2242
2243 if (sc->ndis_chars->nmc_enable_interrupts_func != NULL)
2244 MSCALL1(sc->ndis_chars->nmc_enable_interrupts_func, adapter);
2245
2246 if (NDIS_SERIALIZED(sc->ndis_block))
2247 KeReleaseSpinLockFromDpcLevel(&block->nmb_lock);
2248
2249 /*
2250 * Set the completion event if we've drained all
2251 * pending interrupts.
2252 */
2253
2254 KeAcquireSpinLockAtDpcLevel(&intr->ni_dpccountlock);
2255 intr->ni_dpccnt--;
2256 if (intr->ni_dpccnt == 0)
2257 KeSetEvent(&intr->ni_dpcevt, IO_NO_INCREMENT, FALSE);
2258 KeReleaseSpinLockFromDpcLevel(&intr->ni_dpccountlock);
2259 }
2260
2261 static ndis_status
NdisMRegisterInterrupt(ndis_miniport_interrupt * intr,ndis_handle adapter,uint32_t ivec,uint32_t ilevel,uint8_t reqisr,uint8_t shared,ndis_interrupt_mode imode)2262 NdisMRegisterInterrupt(ndis_miniport_interrupt *intr, ndis_handle adapter,
2263 uint32_t ivec, uint32_t ilevel, uint8_t reqisr, uint8_t shared,
2264 ndis_interrupt_mode imode)
2265 {
2266 ndis_miniport_block *block;
2267 ndis_miniport_characteristics *ch;
2268 struct ndis_softc *sc;
2269 int error;
2270
2271 block = adapter;
2272 sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
2273 ch = IoGetDriverObjectExtension(block->nmb_deviceobj->do_drvobj,
2274 (void *)1);
2275
2276 intr->ni_rsvd = ExAllocatePoolWithTag(NonPagedPool,
2277 sizeof(struct mtx), 0);
2278 if (intr->ni_rsvd == NULL)
2279 return (NDIS_STATUS_RESOURCES);
2280
2281 intr->ni_block = adapter;
2282 intr->ni_isrreq = reqisr;
2283 intr->ni_shared = shared;
2284 intr->ni_dpccnt = 0;
2285 intr->ni_isrfunc = ch->nmc_isr_func;
2286 intr->ni_dpcfunc = ch->nmc_interrupt_func;
2287
2288 KeInitializeEvent(&intr->ni_dpcevt, EVENT_TYPE_NOTIFY, TRUE);
2289 KeInitializeDpc(&intr->ni_dpc,
2290 ndis_findwrap((funcptr)ndis_intrhand), intr);
2291 KeSetImportanceDpc(&intr->ni_dpc, KDPC_IMPORTANCE_LOW);
2292
2293 error = IoConnectInterrupt(&intr->ni_introbj,
2294 ndis_findwrap((funcptr)ndis_intr), sc, NULL,
2295 ivec, ilevel, 0, imode, shared, 0, FALSE);
2296
2297 if (error != STATUS_SUCCESS)
2298 return (NDIS_STATUS_FAILURE);
2299
2300 block->nmb_interrupt = intr;
2301
2302 return (NDIS_STATUS_SUCCESS);
2303 }
2304
2305 static void
NdisMDeregisterInterrupt(intr)2306 NdisMDeregisterInterrupt(intr)
2307 ndis_miniport_interrupt *intr;
2308 {
2309 ndis_miniport_block *block;
2310 uint8_t irql;
2311
2312 block = intr->ni_block;
2313
2314 /* Should really be KeSynchronizeExecution() */
2315
2316 KeAcquireSpinLock(intr->ni_introbj->ki_lock, &irql);
2317 block->nmb_interrupt = NULL;
2318 KeReleaseSpinLock(intr->ni_introbj->ki_lock, irql);
2319 /*
2320 KeFlushQueuedDpcs();
2321 */
2322 /* Disconnect our ISR */
2323
2324 IoDisconnectInterrupt(intr->ni_introbj);
2325
2326 KeWaitForSingleObject(&intr->ni_dpcevt, 0, 0, FALSE, NULL);
2327 KeResetEvent(&intr->ni_dpcevt);
2328 }
2329
2330 static void
NdisMRegisterAdapterShutdownHandler(adapter,shutdownctx,shutdownfunc)2331 NdisMRegisterAdapterShutdownHandler(adapter, shutdownctx, shutdownfunc)
2332 ndis_handle adapter;
2333 void *shutdownctx;
2334 ndis_shutdown_handler shutdownfunc;
2335 {
2336 ndis_miniport_block *block;
2337 ndis_miniport_characteristics *chars;
2338 struct ndis_softc *sc;
2339
2340 if (adapter == NULL)
2341 return;
2342
2343 block = (ndis_miniport_block *)adapter;
2344 sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
2345 chars = sc->ndis_chars;
2346
2347 chars->nmc_shutdown_handler = shutdownfunc;
2348 chars->nmc_rsvd0 = shutdownctx;
2349 }
2350
2351 static void
NdisMDeregisterAdapterShutdownHandler(adapter)2352 NdisMDeregisterAdapterShutdownHandler(adapter)
2353 ndis_handle adapter;
2354 {
2355 ndis_miniport_block *block;
2356 ndis_miniport_characteristics *chars;
2357 struct ndis_softc *sc;
2358
2359 if (adapter == NULL)
2360 return;
2361
2362 block = (ndis_miniport_block *)adapter;
2363 sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
2364 chars = sc->ndis_chars;
2365
2366 chars->nmc_shutdown_handler = NULL;
2367 chars->nmc_rsvd0 = NULL;
2368 }
2369
2370 static uint32_t
NDIS_BUFFER_TO_SPAN_PAGES(buf)2371 NDIS_BUFFER_TO_SPAN_PAGES(buf)
2372 ndis_buffer *buf;
2373 {
2374 if (buf == NULL)
2375 return (0);
2376 if (MmGetMdlByteCount(buf) == 0)
2377 return (1);
2378 return (SPAN_PAGES(MmGetMdlVirtualAddress(buf),
2379 MmGetMdlByteCount(buf)));
2380 }
2381
2382 static void
NdisGetBufferPhysicalArraySize(buf,pages)2383 NdisGetBufferPhysicalArraySize(buf, pages)
2384 ndis_buffer *buf;
2385 uint32_t *pages;
2386 {
2387 if (buf == NULL)
2388 return;
2389
2390 *pages = NDIS_BUFFER_TO_SPAN_PAGES(buf);
2391 }
2392
2393 static void
NdisQueryBufferOffset(buf,off,len)2394 NdisQueryBufferOffset(buf, off, len)
2395 ndis_buffer *buf;
2396 uint32_t *off;
2397 uint32_t *len;
2398 {
2399 if (buf == NULL)
2400 return;
2401
2402 *off = MmGetMdlByteOffset(buf);
2403 *len = MmGetMdlByteCount(buf);
2404 }
2405
2406 void
NdisMSleep(usecs)2407 NdisMSleep(usecs)
2408 uint32_t usecs;
2409 {
2410 ktimer timer;
2411
2412 /*
2413 * During system bootstrap, (i.e. cold == 1), we aren't
2414 * allowed to sleep, so we have to do a hard DELAY()
2415 * instead.
2416 */
2417
2418 if (cold)
2419 DELAY(usecs);
2420 else {
2421 KeInitializeTimer(&timer);
2422 KeSetTimer(&timer, ((int64_t)usecs * -10), NULL);
2423 KeWaitForSingleObject(&timer, 0, 0, FALSE, NULL);
2424 }
2425 }
2426
2427 static uint32_t
NdisReadPcmciaAttributeMemory(handle,offset,buf,len)2428 NdisReadPcmciaAttributeMemory(handle, offset, buf, len)
2429 ndis_handle handle;
2430 uint32_t offset;
2431 void *buf;
2432 uint32_t len;
2433 {
2434 struct ndis_softc *sc;
2435 ndis_miniport_block *block;
2436 bus_space_handle_t bh;
2437 bus_space_tag_t bt;
2438 char *dest;
2439 uint32_t i;
2440
2441 if (handle == NULL)
2442 return (0);
2443
2444 block = (ndis_miniport_block *)handle;
2445 sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
2446 dest = buf;
2447
2448 bh = rman_get_bushandle(sc->ndis_res_am);
2449 bt = rman_get_bustag(sc->ndis_res_am);
2450
2451 for (i = 0; i < len; i++)
2452 dest[i] = bus_space_read_1(bt, bh, (offset + i) * 2);
2453
2454 return (i);
2455 }
2456
2457 static uint32_t
NdisWritePcmciaAttributeMemory(handle,offset,buf,len)2458 NdisWritePcmciaAttributeMemory(handle, offset, buf, len)
2459 ndis_handle handle;
2460 uint32_t offset;
2461 void *buf;
2462 uint32_t len;
2463 {
2464 struct ndis_softc *sc;
2465 ndis_miniport_block *block;
2466 bus_space_handle_t bh;
2467 bus_space_tag_t bt;
2468 char *src;
2469 uint32_t i;
2470
2471 if (handle == NULL)
2472 return (0);
2473
2474 block = (ndis_miniport_block *)handle;
2475 sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
2476 src = buf;
2477
2478 bh = rman_get_bushandle(sc->ndis_res_am);
2479 bt = rman_get_bustag(sc->ndis_res_am);
2480
2481 for (i = 0; i < len; i++)
2482 bus_space_write_1(bt, bh, (offset + i) * 2, src[i]);
2483
2484 return (i);
2485 }
2486
2487 static list_entry *
NdisInterlockedInsertHeadList(head,entry,lock)2488 NdisInterlockedInsertHeadList(head, entry, lock)
2489 list_entry *head;
2490 list_entry *entry;
2491 ndis_spin_lock *lock;
2492 {
2493 list_entry *flink;
2494
2495 KeAcquireSpinLock(&lock->nsl_spinlock, &lock->nsl_kirql);
2496 flink = head->nle_flink;
2497 entry->nle_flink = flink;
2498 entry->nle_blink = head;
2499 flink->nle_blink = entry;
2500 head->nle_flink = entry;
2501 KeReleaseSpinLock(&lock->nsl_spinlock, lock->nsl_kirql);
2502
2503 return (flink);
2504 }
2505
2506 static list_entry *
NdisInterlockedRemoveHeadList(head,lock)2507 NdisInterlockedRemoveHeadList(head, lock)
2508 list_entry *head;
2509 ndis_spin_lock *lock;
2510 {
2511 list_entry *flink;
2512 list_entry *entry;
2513
2514 KeAcquireSpinLock(&lock->nsl_spinlock, &lock->nsl_kirql);
2515 entry = head->nle_flink;
2516 flink = entry->nle_flink;
2517 head->nle_flink = flink;
2518 flink->nle_blink = head;
2519 KeReleaseSpinLock(&lock->nsl_spinlock, lock->nsl_kirql);
2520
2521 return (entry);
2522 }
2523
2524 static list_entry *
NdisInterlockedInsertTailList(head,entry,lock)2525 NdisInterlockedInsertTailList(head, entry, lock)
2526 list_entry *head;
2527 list_entry *entry;
2528 ndis_spin_lock *lock;
2529 {
2530 list_entry *blink;
2531
2532 KeAcquireSpinLock(&lock->nsl_spinlock, &lock->nsl_kirql);
2533 blink = head->nle_blink;
2534 entry->nle_flink = head;
2535 entry->nle_blink = blink;
2536 blink->nle_flink = entry;
2537 head->nle_blink = entry;
2538 KeReleaseSpinLock(&lock->nsl_spinlock, lock->nsl_kirql);
2539
2540 return (blink);
2541 }
2542
2543 static uint8_t
NdisMSynchronizeWithInterrupt(intr,syncfunc,syncctx)2544 NdisMSynchronizeWithInterrupt(intr, syncfunc, syncctx)
2545 ndis_miniport_interrupt *intr;
2546 void *syncfunc;
2547 void *syncctx;
2548 {
2549 return (KeSynchronizeExecution(intr->ni_introbj, syncfunc, syncctx));
2550 }
2551
2552 static void
NdisGetCurrentSystemTime(tval)2553 NdisGetCurrentSystemTime(tval)
2554 uint64_t *tval;
2555 {
2556 ntoskrnl_time(tval);
2557 }
2558
2559 /*
2560 * Return the number of milliseconds since the system booted.
2561 */
2562 static void
NdisGetSystemUpTime(tval)2563 NdisGetSystemUpTime(tval)
2564 uint32_t *tval;
2565 {
2566 struct timespec ts;
2567
2568 nanouptime(&ts);
2569 *tval = ts.tv_nsec / 1000000 + ts.tv_sec * 1000;
2570 }
2571
2572 static void
NdisInitializeString(dst,src)2573 NdisInitializeString(dst, src)
2574 unicode_string *dst;
2575 char *src;
2576 {
2577 ansi_string as;
2578 RtlInitAnsiString(&as, src);
2579 RtlAnsiStringToUnicodeString(dst, &as, TRUE);
2580 }
2581
2582 static void
NdisFreeString(str)2583 NdisFreeString(str)
2584 unicode_string *str;
2585 {
2586 RtlFreeUnicodeString(str);
2587 }
2588
2589 static ndis_status
NdisMRemoveMiniport(adapter)2590 NdisMRemoveMiniport(adapter)
2591 ndis_handle *adapter;
2592 {
2593 return (NDIS_STATUS_SUCCESS);
2594 }
2595
2596 static void
NdisInitAnsiString(dst,src)2597 NdisInitAnsiString(dst, src)
2598 ansi_string *dst;
2599 char *src;
2600 {
2601 RtlInitAnsiString(dst, src);
2602 }
2603
2604 static void
NdisInitUnicodeString(dst,src)2605 NdisInitUnicodeString(dst, src)
2606 unicode_string *dst;
2607 uint16_t *src;
2608 {
2609 RtlInitUnicodeString(dst, src);
2610 }
2611
NdisMGetDeviceProperty(adapter,phydevobj,funcdevobj,nextdevobj,resources,transresources)2612 static void NdisMGetDeviceProperty(adapter, phydevobj,
2613 funcdevobj, nextdevobj, resources, transresources)
2614 ndis_handle adapter;
2615 device_object **phydevobj;
2616 device_object **funcdevobj;
2617 device_object **nextdevobj;
2618 cm_resource_list *resources;
2619 cm_resource_list *transresources;
2620 {
2621 ndis_miniport_block *block;
2622
2623 block = (ndis_miniport_block *)adapter;
2624
2625 if (phydevobj != NULL)
2626 *phydevobj = block->nmb_physdeviceobj;
2627 if (funcdevobj != NULL)
2628 *funcdevobj = block->nmb_deviceobj;
2629 if (nextdevobj != NULL)
2630 *nextdevobj = block->nmb_nextdeviceobj;
2631 }
2632
2633 static void
NdisGetFirstBufferFromPacket(packet,buf,firstva,firstlen,totlen)2634 NdisGetFirstBufferFromPacket(packet, buf, firstva, firstlen, totlen)
2635 ndis_packet *packet;
2636 ndis_buffer **buf;
2637 void **firstva;
2638 uint32_t *firstlen;
2639 uint32_t *totlen;
2640 {
2641 ndis_buffer *tmp;
2642
2643 tmp = packet->np_private.npp_head;
2644 *buf = tmp;
2645 if (tmp == NULL) {
2646 *firstva = NULL;
2647 *firstlen = *totlen = 0;
2648 } else {
2649 *firstva = MmGetMdlVirtualAddress(tmp);
2650 *firstlen = *totlen = MmGetMdlByteCount(tmp);
2651 for (tmp = tmp->mdl_next; tmp != NULL; tmp = tmp->mdl_next)
2652 *totlen += MmGetMdlByteCount(tmp);
2653 }
2654 }
2655
2656 static void
NdisGetFirstBufferFromPacketSafe(packet,buf,firstva,firstlen,totlen,prio)2657 NdisGetFirstBufferFromPacketSafe(packet, buf, firstva, firstlen, totlen, prio)
2658 ndis_packet *packet;
2659 ndis_buffer **buf;
2660 void **firstva;
2661 uint32_t *firstlen;
2662 uint32_t *totlen;
2663 uint32_t prio;
2664 {
2665 NdisGetFirstBufferFromPacket(packet, buf, firstva, firstlen, totlen);
2666 }
2667
2668 static int
ndis_find_sym(lf,filename,suffix,sym)2669 ndis_find_sym(lf, filename, suffix, sym)
2670 linker_file_t lf;
2671 char *filename;
2672 char *suffix;
2673 caddr_t *sym;
2674 {
2675 char *fullsym;
2676 char *suf;
2677 u_int i;
2678
2679 fullsym = ExAllocatePoolWithTag(NonPagedPool, MAXPATHLEN, 0);
2680 if (fullsym == NULL)
2681 return (ENOMEM);
2682
2683 bzero(fullsym, MAXPATHLEN);
2684 strncpy(fullsym, filename, MAXPATHLEN);
2685 if (strlen(filename) < 4) {
2686 ExFreePool(fullsym);
2687 return (EINVAL);
2688 }
2689
2690 /* If the filename has a .ko suffix, strip if off. */
2691 suf = fullsym + (strlen(filename) - 3);
2692 if (strcmp(suf, ".ko") == 0)
2693 *suf = '\0';
2694
2695 for (i = 0; i < strlen(fullsym); i++) {
2696 if (fullsym[i] == '.')
2697 fullsym[i] = '_';
2698 else
2699 fullsym[i] = tolower(fullsym[i]);
2700 }
2701 strcat(fullsym, suffix);
2702 *sym = linker_file_lookup_symbol(lf, fullsym, 0);
2703 ExFreePool(fullsym);
2704 if (*sym == 0)
2705 return (ENOENT);
2706
2707 return (0);
2708 }
2709
2710 struct ndis_checkmodule {
2711 char *afilename;
2712 ndis_fh *fh;
2713 };
2714
2715 /*
2716 * See if a single module contains the symbols for a specified file.
2717 */
2718 static int
NdisCheckModule(linker_file_t lf,void * context)2719 NdisCheckModule(linker_file_t lf, void *context)
2720 {
2721 struct ndis_checkmodule *nc;
2722 caddr_t kldstart, kldend;
2723
2724 nc = (struct ndis_checkmodule *)context;
2725 if (ndis_find_sym(lf, nc->afilename, "_start", &kldstart))
2726 return (0);
2727 if (ndis_find_sym(lf, nc->afilename, "_end", &kldend))
2728 return (0);
2729 nc->fh->nf_vp = lf;
2730 nc->fh->nf_map = NULL;
2731 nc->fh->nf_type = NDIS_FH_TYPE_MODULE;
2732 nc->fh->nf_maplen = (kldend - kldstart) & 0xFFFFFFFF;
2733 return (1);
2734 }
2735
2736 /* can also return NDIS_STATUS_RESOURCES/NDIS_STATUS_ERROR_READING_FILE */
2737 static void
NdisOpenFile(status,filehandle,filelength,filename,highestaddr)2738 NdisOpenFile(status, filehandle, filelength, filename, highestaddr)
2739 ndis_status *status;
2740 ndis_handle *filehandle;
2741 uint32_t *filelength;
2742 unicode_string *filename;
2743 ndis_physaddr highestaddr;
2744 {
2745 ansi_string as;
2746 char *afilename = NULL;
2747 struct thread *td = curthread;
2748 struct nameidata nd;
2749 int flags, error;
2750 struct vattr vat;
2751 struct vattr *vap = &vat;
2752 ndis_fh *fh;
2753 char *path;
2754 struct ndis_checkmodule nc;
2755
2756 if (RtlUnicodeStringToAnsiString(&as, filename, TRUE)) {
2757 *status = NDIS_STATUS_RESOURCES;
2758 return;
2759 }
2760
2761 afilename = strdup(as.as_buf, M_DEVBUF);
2762 RtlFreeAnsiString(&as);
2763
2764 fh = ExAllocatePoolWithTag(NonPagedPool, sizeof(ndis_fh), 0);
2765 if (fh == NULL) {
2766 free(afilename, M_DEVBUF);
2767 *status = NDIS_STATUS_RESOURCES;
2768 return;
2769 }
2770
2771 fh->nf_name = afilename;
2772
2773 /*
2774 * During system bootstrap, it's impossible to load files
2775 * from the rootfs since it's not mounted yet. We therefore
2776 * offer the possibility of opening files that have been
2777 * preloaded as modules instead. Both choices will work
2778 * when kldloading a module from multiuser, but only the
2779 * module option will work during bootstrap. The module
2780 * loading option works by using the ndiscvt(8) utility
2781 * to convert the arbitrary file into a .ko using objcopy(1).
2782 * This file will contain two special symbols: filename_start
2783 * and filename_end. All we have to do is traverse the KLD
2784 * list in search of those symbols and we've found the file
2785 * data. As an added bonus, ndiscvt(8) will also generate
2786 * a normal .o file which can be linked statically with
2787 * the kernel. This means that the symbols will actual reside
2788 * in the kernel's symbol table, but that doesn't matter to
2789 * us since the kernel appears to us as just another module.
2790 */
2791
2792 nc.afilename = afilename;
2793 nc.fh = fh;
2794 if (linker_file_foreach(NdisCheckModule, &nc)) {
2795 *filelength = fh->nf_maplen;
2796 *filehandle = fh;
2797 *status = NDIS_STATUS_SUCCESS;
2798 return;
2799 }
2800
2801 if (TAILQ_EMPTY(&mountlist)) {
2802 ExFreePool(fh);
2803 *status = NDIS_STATUS_FILE_NOT_FOUND;
2804 printf("NDIS: could not find file %s in linker list\n",
2805 afilename);
2806 printf("NDIS: and no filesystems mounted yet, "
2807 "aborting NdisOpenFile()\n");
2808 free(afilename, M_DEVBUF);
2809 return;
2810 }
2811
2812 path = ExAllocatePoolWithTag(NonPagedPool, MAXPATHLEN, 0);
2813 if (path == NULL) {
2814 ExFreePool(fh);
2815 free(afilename, M_DEVBUF);
2816 *status = NDIS_STATUS_RESOURCES;
2817 return;
2818 }
2819
2820 snprintf(path, MAXPATHLEN, "%s/%s", ndis_filepath, afilename);
2821
2822 /* Some threads don't have a current working directory. */
2823
2824 pwd_ensure_dirs();
2825
2826 NDINIT(&nd, LOOKUP, FOLLOW, UIO_SYSSPACE, path, td);
2827
2828 flags = FREAD;
2829 error = vn_open(&nd, &flags, 0, NULL);
2830 if (error) {
2831 *status = NDIS_STATUS_FILE_NOT_FOUND;
2832 ExFreePool(fh);
2833 printf("NDIS: open file %s failed: %d\n", path, error);
2834 ExFreePool(path);
2835 free(afilename, M_DEVBUF);
2836 return;
2837 }
2838
2839 ExFreePool(path);
2840
2841 NDFREE(&nd, NDF_ONLY_PNBUF);
2842
2843 /* Get the file size. */
2844 VOP_GETATTR(nd.ni_vp, vap, td->td_ucred);
2845 VOP_UNLOCK(nd.ni_vp);
2846
2847 fh->nf_vp = nd.ni_vp;
2848 fh->nf_map = NULL;
2849 fh->nf_type = NDIS_FH_TYPE_VFS;
2850 *filehandle = fh;
2851 *filelength = fh->nf_maplen = vap->va_size & 0xFFFFFFFF;
2852 *status = NDIS_STATUS_SUCCESS;
2853 }
2854
2855 static void
NdisMapFile(status,mappedbuffer,filehandle)2856 NdisMapFile(status, mappedbuffer, filehandle)
2857 ndis_status *status;
2858 void **mappedbuffer;
2859 ndis_handle filehandle;
2860 {
2861 ndis_fh *fh;
2862 struct thread *td = curthread;
2863 linker_file_t lf;
2864 caddr_t kldstart;
2865 int error;
2866 ssize_t resid;
2867 struct vnode *vp;
2868
2869 if (filehandle == NULL) {
2870 *status = NDIS_STATUS_FAILURE;
2871 return;
2872 }
2873
2874 fh = (ndis_fh *)filehandle;
2875
2876 if (fh->nf_vp == NULL) {
2877 *status = NDIS_STATUS_FAILURE;
2878 return;
2879 }
2880
2881 if (fh->nf_map != NULL) {
2882 *status = NDIS_STATUS_ALREADY_MAPPED;
2883 return;
2884 }
2885
2886 if (fh->nf_type == NDIS_FH_TYPE_MODULE) {
2887 lf = fh->nf_vp;
2888 if (ndis_find_sym(lf, fh->nf_name, "_start", &kldstart)) {
2889 *status = NDIS_STATUS_FAILURE;
2890 return;
2891 }
2892 fh->nf_map = kldstart;
2893 *status = NDIS_STATUS_SUCCESS;
2894 *mappedbuffer = fh->nf_map;
2895 return;
2896 }
2897
2898 fh->nf_map = ExAllocatePoolWithTag(NonPagedPool, fh->nf_maplen, 0);
2899
2900 if (fh->nf_map == NULL) {
2901 *status = NDIS_STATUS_RESOURCES;
2902 return;
2903 }
2904
2905 vp = fh->nf_vp;
2906 error = vn_rdwr(UIO_READ, vp, fh->nf_map, fh->nf_maplen, 0,
2907 UIO_SYSSPACE, 0, td->td_ucred, NOCRED, &resid, td);
2908
2909 if (error)
2910 *status = NDIS_STATUS_FAILURE;
2911 else {
2912 *status = NDIS_STATUS_SUCCESS;
2913 *mappedbuffer = fh->nf_map;
2914 }
2915 }
2916
2917 static void
NdisUnmapFile(filehandle)2918 NdisUnmapFile(filehandle)
2919 ndis_handle filehandle;
2920 {
2921 ndis_fh *fh;
2922 fh = (ndis_fh *)filehandle;
2923
2924 if (fh->nf_map == NULL)
2925 return;
2926
2927 if (fh->nf_type == NDIS_FH_TYPE_VFS)
2928 ExFreePool(fh->nf_map);
2929 fh->nf_map = NULL;
2930 }
2931
2932 static void
NdisCloseFile(filehandle)2933 NdisCloseFile(filehandle)
2934 ndis_handle filehandle;
2935 {
2936 struct thread *td = curthread;
2937 ndis_fh *fh;
2938 struct vnode *vp;
2939
2940 if (filehandle == NULL)
2941 return;
2942
2943 fh = (ndis_fh *)filehandle;
2944 if (fh->nf_map != NULL) {
2945 if (fh->nf_type == NDIS_FH_TYPE_VFS)
2946 ExFreePool(fh->nf_map);
2947 fh->nf_map = NULL;
2948 }
2949
2950 if (fh->nf_vp == NULL)
2951 return;
2952
2953 if (fh->nf_type == NDIS_FH_TYPE_VFS) {
2954 vp = fh->nf_vp;
2955 vn_close(vp, FREAD, td->td_ucred, td);
2956 }
2957
2958 fh->nf_vp = NULL;
2959 free(fh->nf_name, M_DEVBUF);
2960 ExFreePool(fh);
2961 }
2962
2963 static uint8_t
NdisSystemProcessorCount()2964 NdisSystemProcessorCount()
2965 {
2966 return (mp_ncpus);
2967 }
2968
2969 static void
NdisGetCurrentProcessorCounts(idle_count,kernel_and_user,index)2970 NdisGetCurrentProcessorCounts(idle_count, kernel_and_user, index)
2971 uint32_t *idle_count;
2972 uint32_t *kernel_and_user;
2973 uint32_t *index;
2974 {
2975 struct pcpu *pcpu;
2976
2977 pcpu = pcpu_find(curthread->td_oncpu);
2978 *index = pcpu->pc_cpuid;
2979 *idle_count = pcpu->pc_cp_time[CP_IDLE];
2980 *kernel_and_user = pcpu->pc_cp_time[CP_INTR];
2981 }
2982
2983 typedef void (*ndis_statusdone_handler)(ndis_handle);
2984 typedef void (*ndis_status_handler)(ndis_handle, ndis_status,
2985 void *, uint32_t);
2986
2987 static void
NdisMIndicateStatusComplete(adapter)2988 NdisMIndicateStatusComplete(adapter)
2989 ndis_handle adapter;
2990 {
2991 ndis_miniport_block *block;
2992 ndis_statusdone_handler statusdonefunc;
2993
2994 block = (ndis_miniport_block *)adapter;
2995 statusdonefunc = block->nmb_statusdone_func;
2996
2997 MSCALL1(statusdonefunc, adapter);
2998 }
2999
3000 static void
NdisMIndicateStatus(adapter,status,sbuf,slen)3001 NdisMIndicateStatus(adapter, status, sbuf, slen)
3002 ndis_handle adapter;
3003 ndis_status status;
3004 void *sbuf;
3005 uint32_t slen;
3006 {
3007 ndis_miniport_block *block;
3008 ndis_status_handler statusfunc;
3009
3010 block = (ndis_miniport_block *)adapter;
3011 statusfunc = block->nmb_status_func;
3012
3013 MSCALL4(statusfunc, adapter, status, sbuf, slen);
3014 }
3015
3016 /*
3017 * The DDK documentation says that you should use IoQueueWorkItem()
3018 * instead of ExQueueWorkItem(). The problem is, IoQueueWorkItem()
3019 * is fundamentally incompatible with NdisScheduleWorkItem(), which
3020 * depends on the API semantics of ExQueueWorkItem(). In our world,
3021 * ExQueueWorkItem() is implemented on top of IoAllocateQueueItem()
3022 * anyway.
3023 *
3024 * There are actually three distinct APIs here. NdisScheduleWorkItem()
3025 * takes a pointer to an NDIS_WORK_ITEM. ExQueueWorkItem() takes a pointer
3026 * to a WORK_QUEUE_ITEM. And finally, IoQueueWorkItem() takes a pointer
3027 * to an opaque work item thingie which you get from IoAllocateWorkItem().
3028 * An NDIS_WORK_ITEM is not the same as a WORK_QUEUE_ITEM. However,
3029 * the NDIS_WORK_ITEM has some opaque storage at the end of it, and we
3030 * (ab)use this storage as a WORK_QUEUE_ITEM, which is what we submit
3031 * to ExQueueWorkItem().
3032 *
3033 * Got all that? (Sheesh.)
3034 */
3035
3036 ndis_status
NdisScheduleWorkItem(work)3037 NdisScheduleWorkItem(work)
3038 ndis_work_item *work;
3039 {
3040 work_queue_item *wqi;
3041
3042 wqi = (work_queue_item *)work->nwi_wraprsvd;
3043 ExInitializeWorkItem(wqi,
3044 (work_item_func)work->nwi_func, work->nwi_ctx);
3045 ExQueueWorkItem(wqi, WORKQUEUE_DELAYED);
3046
3047 return (NDIS_STATUS_SUCCESS);
3048 }
3049
3050 static void
NdisCopyFromPacketToPacket(dpkt,doff,reqlen,spkt,soff,cpylen)3051 NdisCopyFromPacketToPacket(dpkt, doff, reqlen, spkt, soff, cpylen)
3052 ndis_packet *dpkt;
3053 uint32_t doff;
3054 uint32_t reqlen;
3055 ndis_packet *spkt;
3056 uint32_t soff;
3057 uint32_t *cpylen;
3058 {
3059 ndis_buffer *src, *dst;
3060 char *sptr, *dptr;
3061 int resid, copied, len, scnt, dcnt;
3062
3063 *cpylen = 0;
3064
3065 src = spkt->np_private.npp_head;
3066 dst = dpkt->np_private.npp_head;
3067
3068 sptr = MmGetMdlVirtualAddress(src);
3069 dptr = MmGetMdlVirtualAddress(dst);
3070 scnt = MmGetMdlByteCount(src);
3071 dcnt = MmGetMdlByteCount(dst);
3072
3073 while (soff) {
3074 if (MmGetMdlByteCount(src) > soff) {
3075 sptr += soff;
3076 scnt = MmGetMdlByteCount(src)- soff;
3077 break;
3078 }
3079 soff -= MmGetMdlByteCount(src);
3080 src = src->mdl_next;
3081 if (src == NULL)
3082 return;
3083 sptr = MmGetMdlVirtualAddress(src);
3084 }
3085
3086 while (doff) {
3087 if (MmGetMdlByteCount(dst) > doff) {
3088 dptr += doff;
3089 dcnt = MmGetMdlByteCount(dst) - doff;
3090 break;
3091 }
3092 doff -= MmGetMdlByteCount(dst);
3093 dst = dst->mdl_next;
3094 if (dst == NULL)
3095 return;
3096 dptr = MmGetMdlVirtualAddress(dst);
3097 }
3098
3099 resid = reqlen;
3100 copied = 0;
3101
3102 while(1) {
3103 if (resid < scnt)
3104 len = resid;
3105 else
3106 len = scnt;
3107 if (dcnt < len)
3108 len = dcnt;
3109
3110 bcopy(sptr, dptr, len);
3111
3112 copied += len;
3113 resid -= len;
3114 if (resid == 0)
3115 break;
3116
3117 dcnt -= len;
3118 if (dcnt == 0) {
3119 dst = dst->mdl_next;
3120 if (dst == NULL)
3121 break;
3122 dptr = MmGetMdlVirtualAddress(dst);
3123 dcnt = MmGetMdlByteCount(dst);
3124 }
3125
3126 scnt -= len;
3127 if (scnt == 0) {
3128 src = src->mdl_next;
3129 if (src == NULL)
3130 break;
3131 sptr = MmGetMdlVirtualAddress(src);
3132 scnt = MmGetMdlByteCount(src);
3133 }
3134 }
3135
3136 *cpylen = copied;
3137 }
3138
3139 static void
NdisCopyFromPacketToPacketSafe(dpkt,doff,reqlen,spkt,soff,cpylen,prio)3140 NdisCopyFromPacketToPacketSafe(dpkt, doff, reqlen, spkt, soff, cpylen, prio)
3141 ndis_packet *dpkt;
3142 uint32_t doff;
3143 uint32_t reqlen;
3144 ndis_packet *spkt;
3145 uint32_t soff;
3146 uint32_t *cpylen;
3147 uint32_t prio;
3148 {
3149 NdisCopyFromPacketToPacket(dpkt, doff, reqlen, spkt, soff, cpylen);
3150 }
3151
3152 static void
NdisIMCopySendPerPacketInfo(dpkt,spkt)3153 NdisIMCopySendPerPacketInfo(dpkt, spkt)
3154 ndis_packet *dpkt;
3155 ndis_packet *spkt;
3156 {
3157 memcpy(&dpkt->np_ext, &spkt->np_ext, sizeof(ndis_packet_extension));
3158 }
3159
3160 static ndis_status
NdisMRegisterDevice(handle,devname,symname,majorfuncs,devobj,devhandle)3161 NdisMRegisterDevice(handle, devname, symname, majorfuncs, devobj, devhandle)
3162 ndis_handle handle;
3163 unicode_string *devname;
3164 unicode_string *symname;
3165 driver_dispatch *majorfuncs[];
3166 void **devobj;
3167 ndis_handle *devhandle;
3168 {
3169 uint32_t status;
3170 device_object *dobj;
3171
3172 status = IoCreateDevice(handle, 0, devname,
3173 FILE_DEVICE_UNKNOWN, 0, FALSE, &dobj);
3174
3175 if (status == STATUS_SUCCESS) {
3176 *devobj = dobj;
3177 *devhandle = dobj;
3178 }
3179
3180 return (status);
3181 }
3182
3183 static ndis_status
NdisMDeregisterDevice(handle)3184 NdisMDeregisterDevice(handle)
3185 ndis_handle handle;
3186 {
3187 IoDeleteDevice(handle);
3188 return (NDIS_STATUS_SUCCESS);
3189 }
3190
3191 static ndis_status
NdisMQueryAdapterInstanceName(name,handle)3192 NdisMQueryAdapterInstanceName(name, handle)
3193 unicode_string *name;
3194 ndis_handle handle;
3195 {
3196 ndis_miniport_block *block;
3197 device_t dev;
3198 ansi_string as;
3199
3200 block = (ndis_miniport_block *)handle;
3201 dev = block->nmb_physdeviceobj->do_devext;
3202
3203 RtlInitAnsiString(&as, __DECONST(char *, device_get_nameunit(dev)));
3204 if (RtlAnsiStringToUnicodeString(name, &as, TRUE))
3205 return (NDIS_STATUS_RESOURCES);
3206
3207 return (NDIS_STATUS_SUCCESS);
3208 }
3209
3210 static void
NdisMRegisterUnloadHandler(handle,func)3211 NdisMRegisterUnloadHandler(handle, func)
3212 ndis_handle handle;
3213 void *func;
3214 {
3215 }
3216
3217 static void
dummy()3218 dummy()
3219 {
3220 printf("NDIS dummy called...\n");
3221 }
3222
3223 /*
3224 * Note: a couple of entries in this table specify the
3225 * number of arguments as "foo + 1". These are routines
3226 * that accept a 64-bit argument, passed by value. On
3227 * x86, these arguments consume two longwords on the stack,
3228 * so we lie and say there's one additional argument so
3229 * that the wrapping routines will do the right thing.
3230 */
3231
3232 image_patch_table ndis_functbl[] = {
3233 IMPORT_SFUNC(NdisCopyFromPacketToPacket, 6),
3234 IMPORT_SFUNC(NdisCopyFromPacketToPacketSafe, 7),
3235 IMPORT_SFUNC(NdisIMCopySendPerPacketInfo, 2),
3236 IMPORT_SFUNC(NdisScheduleWorkItem, 1),
3237 IMPORT_SFUNC(NdisMIndicateStatusComplete, 1),
3238 IMPORT_SFUNC(NdisMIndicateStatus, 4),
3239 IMPORT_SFUNC(NdisSystemProcessorCount, 0),
3240 IMPORT_SFUNC(NdisGetCurrentProcessorCounts, 3),
3241 IMPORT_SFUNC(NdisUnchainBufferAtBack, 2),
3242 IMPORT_SFUNC(NdisGetFirstBufferFromPacket, 5),
3243 IMPORT_SFUNC(NdisGetFirstBufferFromPacketSafe, 6),
3244 IMPORT_SFUNC(NdisGetBufferPhysicalArraySize, 2),
3245 IMPORT_SFUNC(NdisMGetDeviceProperty, 6),
3246 IMPORT_SFUNC(NdisInitAnsiString, 2),
3247 IMPORT_SFUNC(NdisInitUnicodeString, 2),
3248 IMPORT_SFUNC(NdisWriteConfiguration, 4),
3249 IMPORT_SFUNC(NdisAnsiStringToUnicodeString, 2),
3250 IMPORT_SFUNC(NdisTerminateWrapper, 2),
3251 IMPORT_SFUNC(NdisOpenConfigurationKeyByName, 4),
3252 IMPORT_SFUNC(NdisOpenConfigurationKeyByIndex, 5),
3253 IMPORT_SFUNC(NdisMRemoveMiniport, 1),
3254 IMPORT_SFUNC(NdisInitializeString, 2),
3255 IMPORT_SFUNC(NdisFreeString, 1),
3256 IMPORT_SFUNC(NdisGetCurrentSystemTime, 1),
3257 IMPORT_SFUNC(NdisGetRoutineAddress, 1),
3258 IMPORT_SFUNC(NdisGetSystemUpTime, 1),
3259 IMPORT_SFUNC(NdisGetVersion, 0),
3260 IMPORT_SFUNC(NdisMSynchronizeWithInterrupt, 3),
3261 IMPORT_SFUNC(NdisMAllocateSharedMemoryAsync, 4),
3262 IMPORT_SFUNC(NdisInterlockedInsertHeadList, 3),
3263 IMPORT_SFUNC(NdisInterlockedInsertTailList, 3),
3264 IMPORT_SFUNC(NdisInterlockedRemoveHeadList, 2),
3265 IMPORT_SFUNC(NdisInitializeWrapper, 4),
3266 IMPORT_SFUNC(NdisMRegisterMiniport, 3),
3267 IMPORT_SFUNC(NdisAllocateMemoryWithTag, 3),
3268 IMPORT_SFUNC(NdisAllocateMemory, 4 + 1),
3269 IMPORT_SFUNC(NdisMSetAttributesEx, 5),
3270 IMPORT_SFUNC(NdisCloseConfiguration, 1),
3271 IMPORT_SFUNC(NdisReadConfiguration, 5),
3272 IMPORT_SFUNC(NdisOpenConfiguration, 3),
3273 IMPORT_SFUNC(NdisAcquireSpinLock, 1),
3274 IMPORT_SFUNC(NdisReleaseSpinLock, 1),
3275 IMPORT_SFUNC(NdisDprAcquireSpinLock, 1),
3276 IMPORT_SFUNC(NdisDprReleaseSpinLock, 1),
3277 IMPORT_SFUNC(NdisAllocateSpinLock, 1),
3278 IMPORT_SFUNC(NdisInitializeReadWriteLock, 1),
3279 IMPORT_SFUNC(NdisAcquireReadWriteLock, 3),
3280 IMPORT_SFUNC(NdisReleaseReadWriteLock, 2),
3281 IMPORT_SFUNC(NdisFreeSpinLock, 1),
3282 IMPORT_SFUNC(NdisFreeMemory, 3),
3283 IMPORT_SFUNC(NdisReadPciSlotInformation, 5),
3284 IMPORT_SFUNC(NdisWritePciSlotInformation, 5),
3285 IMPORT_SFUNC_MAP(NdisImmediateReadPciSlotInformation,
3286 NdisReadPciSlotInformation, 5),
3287 IMPORT_SFUNC_MAP(NdisImmediateWritePciSlotInformation,
3288 NdisWritePciSlotInformation, 5),
3289 IMPORT_CFUNC(NdisWriteErrorLogEntry, 0),
3290 IMPORT_SFUNC(NdisMStartBufferPhysicalMapping, 6),
3291 IMPORT_SFUNC(NdisMCompleteBufferPhysicalMapping, 3),
3292 IMPORT_SFUNC(NdisMInitializeTimer, 4),
3293 IMPORT_SFUNC(NdisInitializeTimer, 3),
3294 IMPORT_SFUNC(NdisSetTimer, 2),
3295 IMPORT_SFUNC(NdisMCancelTimer, 2),
3296 IMPORT_SFUNC_MAP(NdisCancelTimer, NdisMCancelTimer, 2),
3297 IMPORT_SFUNC(NdisMSetPeriodicTimer, 2),
3298 IMPORT_SFUNC(NdisMQueryAdapterResources, 4),
3299 IMPORT_SFUNC(NdisMRegisterIoPortRange, 4),
3300 IMPORT_SFUNC(NdisMDeregisterIoPortRange, 4),
3301 IMPORT_SFUNC(NdisReadNetworkAddress, 4),
3302 IMPORT_SFUNC(NdisQueryMapRegisterCount, 2),
3303 IMPORT_SFUNC(NdisMAllocateMapRegisters, 5),
3304 IMPORT_SFUNC(NdisMFreeMapRegisters, 1),
3305 IMPORT_SFUNC(NdisMAllocateSharedMemory, 5),
3306 IMPORT_SFUNC(NdisMMapIoSpace, 4 + 1),
3307 IMPORT_SFUNC(NdisMUnmapIoSpace, 3),
3308 IMPORT_SFUNC(NdisGetCacheFillSize, 0),
3309 IMPORT_SFUNC(NdisMGetDmaAlignment, 1),
3310 IMPORT_SFUNC(NdisMInitializeScatterGatherDma, 3),
3311 IMPORT_SFUNC(NdisAllocatePacketPool, 4),
3312 IMPORT_SFUNC(NdisAllocatePacketPoolEx, 5),
3313 IMPORT_SFUNC(NdisAllocatePacket, 3),
3314 IMPORT_SFUNC(NdisFreePacket, 1),
3315 IMPORT_SFUNC(NdisFreePacketPool, 1),
3316 IMPORT_SFUNC_MAP(NdisDprAllocatePacket, NdisAllocatePacket, 3),
3317 IMPORT_SFUNC_MAP(NdisDprFreePacket, NdisFreePacket, 1),
3318 IMPORT_SFUNC(NdisAllocateBufferPool, 3),
3319 IMPORT_SFUNC(NdisAllocateBuffer, 5),
3320 IMPORT_SFUNC(NdisQueryBuffer, 3),
3321 IMPORT_SFUNC(NdisQueryBufferSafe, 4),
3322 IMPORT_SFUNC(NdisBufferVirtualAddress, 1),
3323 IMPORT_SFUNC(NdisBufferVirtualAddressSafe, 2),
3324 IMPORT_SFUNC(NdisBufferLength, 1),
3325 IMPORT_SFUNC(NdisFreeBuffer, 1),
3326 IMPORT_SFUNC(NdisFreeBufferPool, 1),
3327 IMPORT_SFUNC(NdisInterlockedIncrement, 1),
3328 IMPORT_SFUNC(NdisInterlockedDecrement, 1),
3329 IMPORT_SFUNC(NdisInitializeEvent, 1),
3330 IMPORT_SFUNC(NdisSetEvent, 1),
3331 IMPORT_SFUNC(NdisResetEvent, 1),
3332 IMPORT_SFUNC(NdisWaitEvent, 2),
3333 IMPORT_SFUNC(NdisUnicodeStringToAnsiString, 2),
3334 IMPORT_SFUNC(NdisMPciAssignResources, 3),
3335 IMPORT_SFUNC(NdisMFreeSharedMemory, 5 + 1),
3336 IMPORT_SFUNC(NdisMRegisterInterrupt, 7),
3337 IMPORT_SFUNC(NdisMDeregisterInterrupt, 1),
3338 IMPORT_SFUNC(NdisMRegisterAdapterShutdownHandler, 3),
3339 IMPORT_SFUNC(NdisMDeregisterAdapterShutdownHandler, 1),
3340 IMPORT_SFUNC(NDIS_BUFFER_TO_SPAN_PAGES, 1),
3341 IMPORT_SFUNC(NdisQueryBufferOffset, 3),
3342 IMPORT_SFUNC(NdisAdjustBufferLength, 2),
3343 IMPORT_SFUNC(NdisPacketPoolUsage, 1),
3344 IMPORT_SFUNC(NdisMSleep, 1),
3345 IMPORT_SFUNC(NdisUnchainBufferAtFront, 2),
3346 IMPORT_SFUNC(NdisReadPcmciaAttributeMemory, 4),
3347 IMPORT_SFUNC(NdisWritePcmciaAttributeMemory, 4),
3348 IMPORT_SFUNC(NdisOpenFile, 5 + 1),
3349 IMPORT_SFUNC(NdisMapFile, 3),
3350 IMPORT_SFUNC(NdisUnmapFile, 1),
3351 IMPORT_SFUNC(NdisCloseFile, 1),
3352 IMPORT_SFUNC(NdisMRegisterDevice, 6),
3353 IMPORT_SFUNC(NdisMDeregisterDevice, 1),
3354 IMPORT_SFUNC(NdisMQueryAdapterInstanceName, 2),
3355 IMPORT_SFUNC(NdisMRegisterUnloadHandler, 2),
3356 IMPORT_SFUNC(ndis_timercall, 4),
3357 IMPORT_SFUNC(ndis_asyncmem_complete, 2),
3358 IMPORT_SFUNC(ndis_intr, 2),
3359 IMPORT_SFUNC(ndis_intrhand, 4),
3360
3361 /*
3362 * This last entry is a catch-all for any function we haven't
3363 * implemented yet. The PE import list patching routine will
3364 * use it for any function that doesn't have an explicit match
3365 * in this table.
3366 */
3367
3368 { NULL, (FUNC)dummy, NULL, 0, WINDRV_WRAP_STDCALL },
3369
3370 /* End of list. */
3371 { NULL, NULL, NULL }
3372 };
3373