1 /*-
2 * Copyright (c) 2003
3 * Bill Paul <wpaul@windriver.com>. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by Bill Paul.
16 * 4. Neither the name of the author nor the names of any co-contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
30 * THE POSSIBILITY OF SUCH DAMAGE.
31 */
32
33 #include <sys/cdefs.h>
34 __FBSDID("$FreeBSD: releng/6.3/sys/compat/ndis/kern_ndis.c 152110 2005-11-06 03:52:25Z wpaul $");
35
36 #include <sys/param.h>
37 #include <sys/systm.h>
38 #include <sys/unistd.h>
39 #include <sys/types.h>
40 #include <sys/errno.h>
41 #include <sys/callout.h>
42 #include <sys/socket.h>
43 #include <sys/queue.h>
44 #include <sys/sysctl.h>
45 #include <sys/proc.h>
46 #include <sys/malloc.h>
47 #include <sys/lock.h>
48 #include <sys/mutex.h>
49 #include <sys/conf.h>
50
51 #include <sys/kernel.h>
52 #include <sys/module.h>
53 #include <sys/kthread.h>
54 #include <machine/bus.h>
55 #include <machine/resource.h>
56 #include <sys/bus.h>
57 #include <sys/rman.h>
58
59 #include <net/if.h>
60 #include <net/if_arp.h>
61 #include <net/ethernet.h>
62 #include <net/if_dl.h>
63 #include <net/if_media.h>
64
65 #include <net80211/ieee80211_var.h>
66 #include <net80211/ieee80211_ioctl.h>
67
68 #include <compat/ndis/pe_var.h>
69 #include <compat/ndis/cfg_var.h>
70 #include <compat/ndis/resource_var.h>
71 #include <compat/ndis/ntoskrnl_var.h>
72 #include <compat/ndis/ndis_var.h>
73 #include <compat/ndis/hal_var.h>
74 #include <compat/ndis/usbd_var.h>
75 #include <dev/if_ndis/if_ndisvar.h>
76
77 #define NDIS_DUMMY_PATH "\\\\some\\bogus\\path"
78
79 static void ndis_status_func(ndis_handle, ndis_status, void *, uint32_t);
80 static void ndis_statusdone_func(ndis_handle);
81 static void ndis_setdone_func(ndis_handle, ndis_status);
82 static void ndis_getdone_func(ndis_handle, ndis_status);
83 static void ndis_resetdone_func(ndis_handle, ndis_status, uint8_t);
84 static void ndis_sendrsrcavail_func(ndis_handle);
85 static void ndis_intrsetup(kdpc *, device_object *,
86 irp *, struct ndis_softc *);
87 static void ndis_return(device_object *, void *);
88
89 static image_patch_table kernndis_functbl[] = {
90 IMPORT_SFUNC(ndis_status_func, 4),
91 IMPORT_SFUNC(ndis_statusdone_func, 1),
92 IMPORT_SFUNC(ndis_setdone_func, 2),
93 IMPORT_SFUNC(ndis_getdone_func, 2),
94 IMPORT_SFUNC(ndis_resetdone_func, 3),
95 IMPORT_SFUNC(ndis_sendrsrcavail_func, 1),
96 IMPORT_SFUNC(ndis_intrsetup, 4),
97 IMPORT_SFUNC(ndis_return, 1),
98
99 { NULL, NULL, NULL }
100 };
101
102 static struct nd_head ndis_devhead;
103
104 /*
105 * This allows us to export our symbols to other modules.
106 * Note that we call ourselves 'ndisapi' to avoid a namespace
107 * collision with if_ndis.ko, which internally calls itself
108 * 'ndis.'
109 *
110 * Note: some of the subsystems depend on each other, so the
111 * order in which they're started is important. The order of
112 * importance is:
113 *
114 * HAL - spinlocks and IRQL manipulation
115 * ntoskrnl - DPC and workitem threads, object waiting
116 * windrv - driver/device registration
117 *
118 * The HAL should also be the last thing shut down, since
119 * the ntoskrnl subsystem will use spinlocks right up until
120 * the DPC and workitem threads are terminated.
121 */
122
123 static int
124 ndis_modevent(module_t mod, int cmd, void *arg)
125 {
126 int error = 0;
127 image_patch_table *patch;
128
129 switch (cmd) {
130 case MOD_LOAD:
131 /* Initialize subsystems */
132 hal_libinit();
133 ntoskrnl_libinit();
134 windrv_libinit();
135 ndis_libinit();
136 usbd_libinit();
137
138 patch = kernndis_functbl;
139 while (patch->ipt_func != NULL) {
140 windrv_wrap((funcptr)patch->ipt_func,
141 (funcptr *)&patch->ipt_wrap,
142 patch->ipt_argcnt, patch->ipt_ftype);
143 patch++;
144 }
145
146 TAILQ_INIT(&ndis_devhead);
147
148 break;
149 case MOD_SHUTDOWN:
150 if (TAILQ_FIRST(&ndis_devhead) == NULL) {
151 /* Shut down subsystems */
152 ndis_libfini();
153 usbd_libfini();
154 windrv_libfini();
155 ntoskrnl_libfini();
156 hal_libfini();
157
158 patch = kernndis_functbl;
159 while (patch->ipt_func != NULL) {
160 windrv_unwrap(patch->ipt_wrap);
161 patch++;
162 }
163 }
164 break;
165 case MOD_UNLOAD:
166 /* Shut down subsystems */
167 ndis_libfini();
168 usbd_libfini();
169 windrv_libfini();
170 ntoskrnl_libfini();
171 hal_libfini();
172
173 patch = kernndis_functbl;
174 while (patch->ipt_func != NULL) {
175 windrv_unwrap(patch->ipt_wrap);
176 patch++;
177 }
178
179 break;
180 default:
181 error = EINVAL;
182 break;
183 }
184
185 return(error);
186 }
187 DEV_MODULE(ndisapi, ndis_modevent, NULL);
188 MODULE_VERSION(ndisapi, 1);
189
190 static void
191 ndis_sendrsrcavail_func(adapter)
192 ndis_handle adapter;
193 {
194 return;
195 }
196
197 static void
198 ndis_status_func(adapter, status, sbuf, slen)
199 ndis_handle adapter;
200 ndis_status status;
201 void *sbuf;
202 uint32_t slen;
203 {
204 ndis_miniport_block *block;
205 struct ndis_softc *sc;
206 struct ifnet *ifp;
207
208 block = adapter;
209 sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
210 ifp = sc->ifp;
211 if (ifp->if_flags & IFF_DEBUG)
212 device_printf (sc->ndis_dev, "status: %x\n", status);
213 return;
214 }
215
216 static void
217 ndis_statusdone_func(adapter)
218 ndis_handle adapter;
219 {
220 ndis_miniport_block *block;
221 struct ndis_softc *sc;
222 struct ifnet *ifp;
223
224 block = adapter;
225 sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
226 ifp = sc->ifp;
227 if (ifp->if_flags & IFF_DEBUG)
228 device_printf (sc->ndis_dev, "status complete\n");
229 return;
230 }
231
232 static void
233 ndis_setdone_func(adapter, status)
234 ndis_handle adapter;
235 ndis_status status;
236 {
237 ndis_miniport_block *block;
238 block = adapter;
239
240 block->nmb_setstat = status;
241 KeSetEvent(&block->nmb_setevent, IO_NO_INCREMENT, FALSE);
242 return;
243 }
244
245 static void
246 ndis_getdone_func(adapter, status)
247 ndis_handle adapter;
248 ndis_status status;
249 {
250 ndis_miniport_block *block;
251 block = adapter;
252
253 block->nmb_getstat = status;
254 KeSetEvent(&block->nmb_getevent, IO_NO_INCREMENT, FALSE);
255 return;
256 }
257
258 static void
259 ndis_resetdone_func(adapter, status, addressingreset)
260 ndis_handle adapter;
261 ndis_status status;
262 uint8_t addressingreset;
263 {
264 ndis_miniport_block *block;
265 struct ndis_softc *sc;
266 struct ifnet *ifp;
267
268 block = adapter;
269 sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
270 ifp = sc->ifp;
271
272 if (ifp->if_flags & IFF_DEBUG)
273 device_printf (sc->ndis_dev, "reset done...\n");
274 KeSetEvent(&block->nmb_resetevent, IO_NO_INCREMENT, FALSE);
275
276 return;
277 }
278
279 int
280 ndis_create_sysctls(arg)
281 void *arg;
282 {
283 struct ndis_softc *sc;
284 ndis_cfg *vals;
285 char buf[256];
286 struct sysctl_oid *oidp;
287 struct sysctl_ctx_entry *e;
288
289 if (arg == NULL)
290 return(EINVAL);
291
292 sc = arg;
293 vals = sc->ndis_regvals;
294
295 TAILQ_INIT(&sc->ndis_cfglist_head);
296
297 #if __FreeBSD_version < 502113
298 /* Create the sysctl tree. */
299
300 sc->ndis_tree = SYSCTL_ADD_NODE(&sc->ndis_ctx,
301 SYSCTL_STATIC_CHILDREN(_hw), OID_AUTO,
302 device_get_nameunit(sc->ndis_dev), CTLFLAG_RD, 0,
303 device_get_desc(sc->ndis_dev));
304
305 #endif
306 /* Add the driver-specific registry keys. */
307
308 while(1) {
309 if (vals->nc_cfgkey == NULL)
310 break;
311
312 if (vals->nc_idx != sc->ndis_devidx) {
313 vals++;
314 continue;
315 }
316
317 /* See if we already have a sysctl with this name */
318
319 oidp = NULL;
320 #if __FreeBSD_version < 502113
321 TAILQ_FOREACH(e, &sc->ndis_ctx, link) {
322 #else
323 TAILQ_FOREACH(e, device_get_sysctl_ctx(sc->ndis_dev), link) {
324 #endif
325 oidp = e->entry;
326 if (ndis_strcasecmp(oidp->oid_name,
327 vals->nc_cfgkey) == 0)
328 break;
329 oidp = NULL;
330 }
331
332 if (oidp != NULL) {
333 vals++;
334 continue;
335 }
336
337 ndis_add_sysctl(sc, vals->nc_cfgkey, vals->nc_cfgdesc,
338 vals->nc_val, CTLFLAG_RW);
339 vals++;
340 }
341
342 /* Now add a couple of builtin keys. */
343
344 /*
345 * Environment can be either Windows (0) or WindowsNT (1).
346 * We qualify as the latter.
347 */
348 ndis_add_sysctl(sc, "Environment",
349 "Windows environment", "1", CTLFLAG_RD);
350
351 /* NDIS version should be 5.1. */
352 ndis_add_sysctl(sc, "NdisVersion",
353 "NDIS API Version", "0x00050001", CTLFLAG_RD);
354
355 /* Bus type (PCI, PCMCIA, etc...) */
356 sprintf(buf, "%d", (int)sc->ndis_iftype);
357 ndis_add_sysctl(sc, "BusType", "Bus Type", buf, CTLFLAG_RD);
358
359 if (sc->ndis_res_io != NULL) {
360 sprintf(buf, "0x%lx", rman_get_start(sc->ndis_res_io));
361 ndis_add_sysctl(sc, "IOBaseAddress",
362 "Base I/O Address", buf, CTLFLAG_RD);
363 }
364
365 if (sc->ndis_irq != NULL) {
366 sprintf(buf, "%lu", rman_get_start(sc->ndis_irq));
367 ndis_add_sysctl(sc, "InterruptNumber",
368 "Interrupt Number", buf, CTLFLAG_RD);
369 }
370
371 return(0);
372 }
373
374 int
375 ndis_add_sysctl(arg, key, desc, val, flag)
376 void *arg;
377 char *key;
378 char *desc;
379 char *val;
380 int flag;
381 {
382 struct ndis_softc *sc;
383 struct ndis_cfglist *cfg;
384 char descstr[256];
385
386 sc = arg;
387
388 cfg = malloc(sizeof(struct ndis_cfglist), M_DEVBUF, M_NOWAIT|M_ZERO);
389
390 if (cfg == NULL) {
391 printf("failed for %s\n", key);
392 return(ENOMEM);
393 }
394
395 cfg->ndis_cfg.nc_cfgkey = strdup(key, M_DEVBUF);
396 if (desc == NULL) {
397 snprintf(descstr, sizeof(descstr), "%s (dynamic)", key);
398 cfg->ndis_cfg.nc_cfgdesc = strdup(descstr, M_DEVBUF);
399 } else
400 cfg->ndis_cfg.nc_cfgdesc = strdup(desc, M_DEVBUF);
401 strcpy(cfg->ndis_cfg.nc_val, val);
402
403 TAILQ_INSERT_TAIL(&sc->ndis_cfglist_head, cfg, link);
404
405 cfg->ndis_oid =
406 #if __FreeBSD_version < 502113
407 SYSCTL_ADD_STRING(&sc->ndis_ctx, SYSCTL_CHILDREN(sc->ndis_tree),
408 #else
409 SYSCTL_ADD_STRING(device_get_sysctl_ctx(sc->ndis_dev),
410 SYSCTL_CHILDREN(device_get_sysctl_tree(sc->ndis_dev)),
411 #endif
412 OID_AUTO, cfg->ndis_cfg.nc_cfgkey, flag,
413 cfg->ndis_cfg.nc_val, sizeof(cfg->ndis_cfg.nc_val),
414 cfg->ndis_cfg.nc_cfgdesc);
415
416 return(0);
417 }
418
419 /*
420 * Somewhere, somebody decided "hey, let's automatically create
421 * a sysctl tree for each device instance as it's created -- it'll
422 * make life so much easier!" Lies. Why must they turn the kernel
423 * into a house of lies?
424 */
425
426 int
427 ndis_flush_sysctls(arg)
428 void *arg;
429 {
430 struct ndis_softc *sc;
431 struct ndis_cfglist *cfg;
432 struct sysctl_ctx_list *clist;
433
434 sc = arg;
435
436 #if __FreeBSD_version < 502113
437 clist = &sc->ndis_ctx;
438 #else
439 clist = device_get_sysctl_ctx(sc->ndis_dev);
440 #endif
441
442 while (!TAILQ_EMPTY(&sc->ndis_cfglist_head)) {
443 cfg = TAILQ_FIRST(&sc->ndis_cfglist_head);
444 TAILQ_REMOVE(&sc->ndis_cfglist_head, cfg, link);
445 sysctl_ctx_entry_del(clist, cfg->ndis_oid);
446 sysctl_remove_oid(cfg->ndis_oid, 1, 0);
447 free(cfg->ndis_cfg.nc_cfgkey, M_DEVBUF);
448 free(cfg->ndis_cfg.nc_cfgdesc, M_DEVBUF);
449 free(cfg, M_DEVBUF);
450 }
451
452 return(0);
453 }
454
455 static void
456 ndis_return(dobj, arg)
457 device_object *dobj;
458 void *arg;
459 {
460 ndis_miniport_block *block;
461 ndis_miniport_characteristics *ch;
462 ndis_return_handler returnfunc;
463 ndis_handle adapter;
464 ndis_packet *p;
465 uint8_t irql;
466 list_entry *l;
467
468 block = arg;
469 ch = IoGetDriverObjectExtension(dobj->do_drvobj, (void *)1);
470
471 p = arg;
472 adapter = block->nmb_miniportadapterctx;
473
474 if (adapter == NULL)
475 return;
476
477 returnfunc = ch->nmc_return_packet_func;
478
479 KeAcquireSpinLock(&block->nmb_returnlock, &irql);
480 while (!IsListEmpty(&block->nmb_returnlist)) {
481 l = RemoveHeadList((&block->nmb_returnlist));
482 p = CONTAINING_RECORD(l, ndis_packet, np_list);
483 InitializeListHead((&p->np_list));
484 KeReleaseSpinLock(&block->nmb_returnlock, irql);
485 MSCALL2(returnfunc, adapter, p);
486 KeAcquireSpinLock(&block->nmb_returnlock, &irql);
487 }
488 KeReleaseSpinLock(&block->nmb_returnlock, irql);
489
490 return;
491 }
492
493 void
494 ndis_return_packet(buf, arg)
495 void *buf; /* not used */
496 void *arg;
497 {
498 ndis_packet *p;
499 ndis_miniport_block *block;
500
501 if (arg == NULL)
502 return;
503
504 p = arg;
505
506 /* Decrement refcount. */
507 p->np_refcnt--;
508
509 /* Release packet when refcount hits zero, otherwise return. */
510 if (p->np_refcnt)
511 return;
512
513 block = ((struct ndis_softc *)p->np_softc)->ndis_block;
514
515 KeAcquireSpinLockAtDpcLevel(&block->nmb_returnlock);
516 InitializeListHead((&p->np_list));
517 InsertHeadList((&block->nmb_returnlist), (&p->np_list));
518 KeReleaseSpinLockFromDpcLevel(&block->nmb_returnlock);
519
520 IoQueueWorkItem(block->nmb_returnitem,
521 (io_workitem_func)kernndis_functbl[7].ipt_wrap,
522 WORKQUEUE_CRITICAL, block);
523
524 return;
525 }
526
527 void
528 ndis_free_bufs(b0)
529 ndis_buffer *b0;
530 {
531 ndis_buffer *next;
532
533 if (b0 == NULL)
534 return;
535
536 while(b0 != NULL) {
537 next = b0->mdl_next;
538 IoFreeMdl(b0);
539 b0 = next;
540 }
541
542 return;
543 }
544 int in_reset = 0;
545 void
546 ndis_free_packet(p)
547 ndis_packet *p;
548 {
549 if (p == NULL)
550 return;
551
552 ndis_free_bufs(p->np_private.npp_head);
553 NdisFreePacket(p);
554 return;
555 }
556
557 int
558 ndis_convert_res(arg)
559 void *arg;
560 {
561 struct ndis_softc *sc;
562 ndis_resource_list *rl = NULL;
563 cm_partial_resource_desc *prd = NULL;
564 ndis_miniport_block *block;
565 device_t dev;
566 struct resource_list *brl;
567 struct resource_list_entry *brle;
568 #if __FreeBSD_version < 600022
569 struct resource_list brl_rev;
570 struct resource_list_entry *n;
571 #endif
572 int error = 0;
573
574 sc = arg;
575 block = sc->ndis_block;
576 dev = sc->ndis_dev;
577
578 #if __FreeBSD_version < 600022
579 SLIST_INIT(&brl_rev);
580 #endif
581
582 rl = malloc(sizeof(ndis_resource_list) +
583 (sizeof(cm_partial_resource_desc) * (sc->ndis_rescnt - 1)),
584 M_DEVBUF, M_NOWAIT|M_ZERO);
585
586 if (rl == NULL)
587 return(ENOMEM);
588
589 rl->cprl_version = 5;
590 rl->cprl_version = 1;
591 rl->cprl_count = sc->ndis_rescnt;
592 prd = rl->cprl_partial_descs;
593
594 brl = BUS_GET_RESOURCE_LIST(dev, dev);
595
596 if (brl != NULL) {
597
598 #if __FreeBSD_version < 600022
599 /*
600 * We have a small problem. Some PCI devices have
601 * multiple I/O ranges. Windows orders them starting
602 * from lowest numbered BAR to highest. We discover
603 * them in that order too, but insert them into a singly
604 * linked list head first, which means when time comes
605 * to traverse the list, we enumerate them in reverse
606 * order. This screws up some drivers which expect the
607 * BARs to be in ascending order so that they can choose
608 * the "first" one as their register space. Unfortunately,
609 * in order to fix this, we have to create our own
610 * temporary list with the entries in reverse order.
611 */
612
613 SLIST_FOREACH(brle, brl, link) {
614 n = malloc(sizeof(struct resource_list_entry),
615 M_TEMP, M_NOWAIT);
616 if (n == NULL) {
617 error = ENOMEM;
618 goto bad;
619 }
620 bcopy((char *)brle, (char *)n,
621 sizeof(struct resource_list_entry));
622 SLIST_INSERT_HEAD(&brl_rev, n, link);
623 }
624
625 SLIST_FOREACH(brle, &brl_rev, link) {
626 #else
627 STAILQ_FOREACH(brle, brl, link) {
628 #endif
629 switch (brle->type) {
630 case SYS_RES_IOPORT:
631 prd->cprd_type = CmResourceTypePort;
632 prd->cprd_flags = CM_RESOURCE_PORT_IO;
633 prd->cprd_sharedisp =
634 CmResourceShareDeviceExclusive;
635 prd->u.cprd_port.cprd_start.np_quad =
636 brle->start;
637 prd->u.cprd_port.cprd_len = brle->count;
638 break;
639 case SYS_RES_MEMORY:
640 prd->cprd_type = CmResourceTypeMemory;
641 prd->cprd_flags =
642 CM_RESOURCE_MEMORY_READ_WRITE;
643 prd->cprd_sharedisp =
644 CmResourceShareDeviceExclusive;
645 prd->u.cprd_port.cprd_start.np_quad =
646 brle->start;
647 prd->u.cprd_port.cprd_len = brle->count;
648 break;
649 case SYS_RES_IRQ:
650 prd->cprd_type = CmResourceTypeInterrupt;
651 prd->cprd_flags = 0;
652 /*
653 * Always mark interrupt resources as
654 * shared, since in our implementation,
655 * they will be.
656 */
657 prd->cprd_sharedisp =
658 CmResourceShareShared;
659 prd->u.cprd_intr.cprd_level = brle->start;
660 prd->u.cprd_intr.cprd_vector = brle->start;
661 prd->u.cprd_intr.cprd_affinity = 0;
662 break;
663 default:
664 break;
665 }
666 prd++;
667 }
668 }
669
670 block->nmb_rlist = rl;
671
672 #if __FreeBSD_version < 600022
673 bad:
674
675 while (!SLIST_EMPTY(&brl_rev)) {
676 n = SLIST_FIRST(&brl_rev);
677 SLIST_REMOVE_HEAD(&brl_rev, link);
678 free (n, M_TEMP);
679 }
680 #endif
681
682 return(error);
683 }
684
685 /*
686 * Map an NDIS packet to an mbuf list. When an NDIS driver receives a
687 * packet, it will hand it to us in the form of an ndis_packet,
688 * which we need to convert to an mbuf that is then handed off
689 * to the stack. Note: we configure the mbuf list so that it uses
690 * the memory regions specified by the ndis_buffer structures in
691 * the ndis_packet as external storage. In most cases, this will
692 * point to a memory region allocated by the driver (either by
693 * ndis_malloc_withtag() or ndis_alloc_sharedmem()). We expect
694 * the driver to handle free()ing this region for is, so we set up
695 * a dummy no-op free handler for it.
696 */
697
698 int
699 ndis_ptom(m0, p)
700 struct mbuf **m0;
701 ndis_packet *p;
702 {
703 struct mbuf *m = NULL, *prev = NULL;
704 ndis_buffer *buf;
705 ndis_packet_private *priv;
706 uint32_t totlen = 0;
707 struct ifnet *ifp;
708 struct ether_header *eh;
709 int diff;
710
711 if (p == NULL || m0 == NULL)
712 return(EINVAL);
713
714 priv = &p->np_private;
715 buf = priv->npp_head;
716 p->np_refcnt = 0;
717
718 for (buf = priv->npp_head; buf != NULL; buf = buf->mdl_next) {
719 if (buf == priv->npp_head)
720 #ifdef MT_HEADER
721 MGETHDR(m, M_DONTWAIT, MT_HEADER);
722 #else
723 MGETHDR(m, M_DONTWAIT, MT_DATA);
724 #endif
725 else
726 MGET(m, M_DONTWAIT, MT_DATA);
727 if (m == NULL) {
728 m_freem(*m0);
729 *m0 = NULL;
730 return(ENOBUFS);
731 }
732 m->m_len = MmGetMdlByteCount(buf);
733 m->m_data = MmGetMdlVirtualAddress(buf);
734 MEXTADD(m, m->m_data, m->m_len, ndis_return_packet,
735 p, 0, EXT_NDIS);
736 p->np_refcnt++;
737
738 totlen += m->m_len;
739 if (m->m_flags & M_PKTHDR)
740 *m0 = m;
741 else
742 prev->m_next = m;
743 prev = m;
744 }
745
746 /*
747 * This is a hack to deal with the Marvell 8335 driver
748 * which, when associated with an AP in WPA-PSK mode,
749 * seems to overpad its frames by 8 bytes. I don't know
750 * that the extra 8 bytes are for, and they're not there
751 * in open mode, so for now clamp the frame size at 1514
752 * until I can figure out how to deal with this properly,
753 * otherwise if_ethersubr() will spank us by discarding
754 * the 'oversize' frames.
755 */
756
757 eh = mtod((*m0), struct ether_header *);
758 ifp = ((struct ndis_softc *)p->np_softc)->ifp;
759 if (totlen > ETHER_MAX_FRAME(ifp, eh->ether_type, FALSE)) {
760 diff = totlen - ETHER_MAX_FRAME(ifp, eh->ether_type, FALSE);
761 totlen -= diff;
762 m->m_len -= diff;
763 }
764 (*m0)->m_pkthdr.len = totlen;
765
766 return(0);
767 }
768
769 /*
770 * Create an NDIS packet from an mbuf chain.
771 * This is used mainly when transmitting packets, where we need
772 * to turn an mbuf off an interface's send queue and transform it
773 * into an NDIS packet which will be fed into the NDIS driver's
774 * send routine.
775 *
776 * NDIS packets consist of two parts: an ndis_packet structure,
777 * which is vaguely analagous to the pkthdr portion of an mbuf,
778 * and one or more ndis_buffer structures, which define the
779 * actual memory segments in which the packet data resides.
780 * We need to allocate one ndis_buffer for each mbuf in a chain,
781 * plus one ndis_packet as the header.
782 */
783
784 int
785 ndis_mtop(m0, p)
786 struct mbuf *m0;
787 ndis_packet **p;
788 {
789 struct mbuf *m;
790 ndis_buffer *buf = NULL, *prev = NULL;
791 ndis_packet_private *priv;
792
793 if (p == NULL || *p == NULL || m0 == NULL)
794 return(EINVAL);
795
796 priv = &(*p)->np_private;
797 priv->npp_totlen = m0->m_pkthdr.len;
798
799 for (m = m0; m != NULL; m = m->m_next) {
800 if (m->m_len == 0)
801 continue;
802 buf = IoAllocateMdl(m->m_data, m->m_len, FALSE, FALSE, NULL);
803 if (buf == NULL) {
804 ndis_free_packet(*p);
805 *p = NULL;
806 return(ENOMEM);
807 }
808 MmBuildMdlForNonPagedPool(buf);
809
810 if (priv->npp_head == NULL)
811 priv->npp_head = buf;
812 else
813 prev->mdl_next = buf;
814 prev = buf;
815 }
816
817 priv->npp_tail = buf;
818
819 return(0);
820 }
821
822 int
823 ndis_get_supported_oids(arg, oids, oidcnt)
824 void *arg;
825 ndis_oid **oids;
826 int *oidcnt;
827 {
828 int len, rval;
829 ndis_oid *o;
830
831 if (arg == NULL || oids == NULL || oidcnt == NULL)
832 return(EINVAL);
833 len = 0;
834 ndis_get_info(arg, OID_GEN_SUPPORTED_LIST, NULL, &len);
835
836 o = malloc(len, M_DEVBUF, M_NOWAIT);
837 if (o == NULL)
838 return(ENOMEM);
839
840 rval = ndis_get_info(arg, OID_GEN_SUPPORTED_LIST, o, &len);
841
842 if (rval) {
843 free(o, M_DEVBUF);
844 return(rval);
845 }
846
847 *oids = o;
848 *oidcnt = len / 4;
849
850 return(0);
851 }
852
853 int
854 ndis_set_info(arg, oid, buf, buflen)
855 void *arg;
856 ndis_oid oid;
857 void *buf;
858 int *buflen;
859 {
860 struct ndis_softc *sc;
861 ndis_status rval;
862 ndis_handle adapter;
863 ndis_setinfo_handler setfunc;
864 uint32_t byteswritten = 0, bytesneeded = 0;
865 uint8_t irql;
866 uint64_t duetime;
867
868 /*
869 * According to the NDIS spec, MiniportQueryInformation()
870 * and MiniportSetInformation() requests are handled serially:
871 * once one request has been issued, we must wait for it to
872 * finish before allowing another request to proceed.
873 */
874
875 sc = arg;
876
877 KeAcquireSpinLock(&sc->ndis_block->nmb_lock, &irql);
878
879 if (sc->ndis_block->nmb_pendingreq != NULL) {
880 KeReleaseSpinLock(&sc->ndis_block->nmb_lock, irql);
881 panic("ndis_set_info() called while other request pending");
882 } else
883 sc->ndis_block->nmb_pendingreq = (ndis_request *)sc;
884
885 setfunc = sc->ndis_chars->nmc_setinfo_func;
886 adapter = sc->ndis_block->nmb_miniportadapterctx;
887
888 if (adapter == NULL || setfunc == NULL ||
889 sc->ndis_block->nmb_devicectx == NULL) {
890 sc->ndis_block->nmb_pendingreq = NULL;
891 KeReleaseSpinLock(&sc->ndis_block->nmb_lock, irql);
892 return(ENXIO);
893 }
894
895 rval = MSCALL6(setfunc, adapter, oid, buf, *buflen,
896 &byteswritten, &bytesneeded);
897
898 sc->ndis_block->nmb_pendingreq = NULL;
899
900 KeReleaseSpinLock(&sc->ndis_block->nmb_lock, irql);
901
902 if (rval == NDIS_STATUS_PENDING) {
903 /* Wait up to 5 seconds. */
904 duetime = (5 * 1000000) * -10;
905 KeResetEvent(&sc->ndis_block->nmb_setevent);
906 KeWaitForSingleObject(&sc->ndis_block->nmb_setevent,
907 0, 0, FALSE, &duetime);
908 rval = sc->ndis_block->nmb_setstat;
909 }
910
911 if (byteswritten)
912 *buflen = byteswritten;
913 if (bytesneeded)
914 *buflen = bytesneeded;
915
916 if (rval == NDIS_STATUS_INVALID_LENGTH)
917 return(ENOSPC);
918
919 if (rval == NDIS_STATUS_INVALID_OID)
920 return(EINVAL);
921
922 if (rval == NDIS_STATUS_NOT_SUPPORTED ||
923 rval == NDIS_STATUS_NOT_ACCEPTED)
924 return(ENOTSUP);
925
926 if (rval != NDIS_STATUS_SUCCESS)
927 return(ENODEV);
928
929 return(0);
930 }
931
932 typedef void (*ndis_senddone_func)(ndis_handle, ndis_packet *, ndis_status);
933
934 int
935 ndis_send_packets(arg, packets, cnt)
936 void *arg;
937 ndis_packet **packets;
938 int cnt;
939 {
940 struct ndis_softc *sc;
941 ndis_handle adapter;
942 ndis_sendmulti_handler sendfunc;
943 ndis_senddone_func senddonefunc;
944 int i;
945 ndis_packet *p;
946 uint8_t irql;
947
948 sc = arg;
949 adapter = sc->ndis_block->nmb_miniportadapterctx;
950 if (adapter == NULL)
951 return(ENXIO);
952 sendfunc = sc->ndis_chars->nmc_sendmulti_func;
953 senddonefunc = sc->ndis_block->nmb_senddone_func;
954
955 if (NDIS_SERIALIZED(sc->ndis_block))
956 KeAcquireSpinLock(&sc->ndis_block->nmb_lock, &irql);
957
958 MSCALL3(sendfunc, adapter, packets, cnt);
959
960 for (i = 0; i < cnt; i++) {
961 p = packets[i];
962 /*
963 * Either the driver already handed the packet to
964 * ndis_txeof() due to a failure, or it wants to keep
965 * it and release it asynchronously later. Skip to the
966 * next one.
967 */
968 if (p == NULL || p->np_oob.npo_status == NDIS_STATUS_PENDING)
969 continue;
970 MSCALL3(senddonefunc, sc->ndis_block, p, p->np_oob.npo_status);
971 }
972
973 if (NDIS_SERIALIZED(sc->ndis_block))
974 KeReleaseSpinLock(&sc->ndis_block->nmb_lock, irql);
975
976 return(0);
977 }
978
979 int
980 ndis_send_packet(arg, packet)
981 void *arg;
982 ndis_packet *packet;
983 {
984 struct ndis_softc *sc;
985 ndis_handle adapter;
986 ndis_status status;
987 ndis_sendsingle_handler sendfunc;
988 ndis_senddone_func senddonefunc;
989 uint8_t irql;
990
991 sc = arg;
992 adapter = sc->ndis_block->nmb_miniportadapterctx;
993 if (adapter == NULL)
994 return(ENXIO);
995 sendfunc = sc->ndis_chars->nmc_sendsingle_func;
996 senddonefunc = sc->ndis_block->nmb_senddone_func;
997
998 if (NDIS_SERIALIZED(sc->ndis_block))
999 KeAcquireSpinLock(&sc->ndis_block->nmb_lock, &irql);
1000 status = MSCALL3(sendfunc, adapter, packet,
1001 packet->np_private.npp_flags);
1002
1003 if (status == NDIS_STATUS_PENDING) {
1004 if (NDIS_SERIALIZED(sc->ndis_block))
1005 KeReleaseSpinLock(&sc->ndis_block->nmb_lock, irql);
1006 return(0);
1007 }
1008
1009 MSCALL3(senddonefunc, sc->ndis_block, packet, status);
1010
1011 if (NDIS_SERIALIZED(sc->ndis_block))
1012 KeReleaseSpinLock(&sc->ndis_block->nmb_lock, irql);
1013
1014 return(0);
1015 }
1016
1017 int
1018 ndis_init_dma(arg)
1019 void *arg;
1020 {
1021 struct ndis_softc *sc;
1022 int i, error;
1023
1024 sc = arg;
1025
1026 sc->ndis_tmaps = malloc(sizeof(bus_dmamap_t) * sc->ndis_maxpkts,
1027 M_DEVBUF, M_NOWAIT|M_ZERO);
1028
1029 if (sc->ndis_tmaps == NULL)
1030 return(ENOMEM);
1031
1032 for (i = 0; i < sc->ndis_maxpkts; i++) {
1033 error = bus_dmamap_create(sc->ndis_ttag, 0,
1034 &sc->ndis_tmaps[i]);
1035 if (error) {
1036 free(sc->ndis_tmaps, M_DEVBUF);
1037 return(ENODEV);
1038 }
1039 }
1040
1041 return(0);
1042 }
1043
1044 int
1045 ndis_destroy_dma(arg)
1046 void *arg;
1047 {
1048 struct ndis_softc *sc;
1049 struct mbuf *m;
1050 ndis_packet *p = NULL;
1051 int i;
1052
1053 sc = arg;
1054
1055 for (i = 0; i < sc->ndis_maxpkts; i++) {
1056 if (sc->ndis_txarray[i] != NULL) {
1057 p = sc->ndis_txarray[i];
1058 m = (struct mbuf *)p->np_rsvd[1];
1059 if (m != NULL)
1060 m_freem(m);
1061 ndis_free_packet(sc->ndis_txarray[i]);
1062 }
1063 bus_dmamap_destroy(sc->ndis_ttag, sc->ndis_tmaps[i]);
1064 }
1065
1066 free(sc->ndis_tmaps, M_DEVBUF);
1067
1068 bus_dma_tag_destroy(sc->ndis_ttag);
1069
1070 return(0);
1071 }
1072
1073 int
1074 ndis_reset_nic(arg)
1075 void *arg;
1076 {
1077 struct ndis_softc *sc;
1078 ndis_handle adapter;
1079 ndis_reset_handler resetfunc;
1080 uint8_t addressing_reset;
1081 int rval;
1082 uint8_t irql;
1083
1084 sc = arg;
1085
1086 NDIS_LOCK(sc);
1087 adapter = sc->ndis_block->nmb_miniportadapterctx;
1088 resetfunc = sc->ndis_chars->nmc_reset_func;
1089
1090 if (adapter == NULL || resetfunc == NULL ||
1091 sc->ndis_block->nmb_devicectx == NULL) {
1092 NDIS_UNLOCK(sc);
1093 return(EIO);
1094 }
1095
1096 NDIS_UNLOCK(sc);
1097
1098 if (NDIS_SERIALIZED(sc->ndis_block))
1099 KeAcquireSpinLock(&sc->ndis_block->nmb_lock, &irql);
1100
1101 rval = MSCALL2(resetfunc, &addressing_reset, adapter);
1102
1103 if (NDIS_SERIALIZED(sc->ndis_block))
1104 KeReleaseSpinLock(&sc->ndis_block->nmb_lock, irql);
1105
1106 if (rval == NDIS_STATUS_PENDING) {
1107 KeResetEvent(&sc->ndis_block->nmb_resetevent);
1108 KeWaitForSingleObject(&sc->ndis_block->nmb_resetevent,
1109 0, 0, FALSE, NULL);
1110 }
1111
1112 return(0);
1113 }
1114
1115 int
1116 ndis_halt_nic(arg)
1117 void *arg;
1118 {
1119 struct ndis_softc *sc;
1120 ndis_handle adapter;
1121 ndis_halt_handler haltfunc;
1122 ndis_miniport_block *block;
1123 int empty = 0;
1124 uint8_t irql;
1125
1126 sc = arg;
1127 block = sc->ndis_block;
1128
1129 if (!cold)
1130 KeFlushQueuedDpcs();
1131
1132 /*
1133 * Wait for all packets to be returned.
1134 */
1135
1136 while (1) {
1137 KeAcquireSpinLock(&block->nmb_returnlock, &irql);
1138 empty = IsListEmpty(&block->nmb_returnlist);
1139 KeReleaseSpinLock(&block->nmb_returnlock, irql);
1140 if (empty)
1141 break;
1142 NdisMSleep(1000);
1143 }
1144
1145 NDIS_LOCK(sc);
1146 adapter = sc->ndis_block->nmb_miniportadapterctx;
1147 if (adapter == NULL) {
1148 NDIS_UNLOCK(sc);
1149 return(EIO);
1150 }
1151
1152 sc->ndis_block->nmb_devicectx = NULL;
1153
1154 /*
1155 * The adapter context is only valid after the init
1156 * handler has been called, and is invalid once the
1157 * halt handler has been called.
1158 */
1159
1160 haltfunc = sc->ndis_chars->nmc_halt_func;
1161 NDIS_UNLOCK(sc);
1162
1163 MSCALL1(haltfunc, adapter);
1164
1165 NDIS_LOCK(sc);
1166 sc->ndis_block->nmb_miniportadapterctx = NULL;
1167 NDIS_UNLOCK(sc);
1168
1169 return(0);
1170 }
1171
1172 int
1173 ndis_shutdown_nic(arg)
1174 void *arg;
1175 {
1176 struct ndis_softc *sc;
1177 ndis_handle adapter;
1178 ndis_shutdown_handler shutdownfunc;
1179
1180 sc = arg;
1181 NDIS_LOCK(sc);
1182 adapter = sc->ndis_block->nmb_miniportadapterctx;
1183 shutdownfunc = sc->ndis_chars->nmc_shutdown_handler;
1184 NDIS_UNLOCK(sc);
1185 if (adapter == NULL || shutdownfunc == NULL)
1186 return(EIO);
1187
1188 if (sc->ndis_chars->nmc_rsvd0 == NULL)
1189 MSCALL1(shutdownfunc, adapter);
1190 else
1191 MSCALL1(shutdownfunc, sc->ndis_chars->nmc_rsvd0);
1192
1193 TAILQ_REMOVE(&ndis_devhead, sc->ndis_block, link);
1194
1195 return(0);
1196 }
1197
1198 int
1199 ndis_init_nic(arg)
1200 void *arg;
1201 {
1202 struct ndis_softc *sc;
1203 ndis_miniport_block *block;
1204 ndis_init_handler initfunc;
1205 ndis_status status, openstatus = 0;
1206 ndis_medium mediumarray[NdisMediumMax];
1207 uint32_t chosenmedium, i;
1208
1209 if (arg == NULL)
1210 return(EINVAL);
1211
1212 sc = arg;
1213 NDIS_LOCK(sc);
1214 block = sc->ndis_block;
1215 initfunc = sc->ndis_chars->nmc_init_func;
1216 NDIS_UNLOCK(sc);
1217
1218 sc->ndis_block->nmb_timerlist = NULL;
1219
1220 for (i = 0; i < NdisMediumMax; i++)
1221 mediumarray[i] = i;
1222
1223 status = MSCALL6(initfunc, &openstatus, &chosenmedium,
1224 mediumarray, NdisMediumMax, block, block);
1225
1226 /*
1227 * If the init fails, blow away the other exported routines
1228 * we obtained from the driver so we can't call them later.
1229 * If the init failed, none of these will work.
1230 */
1231 if (status != NDIS_STATUS_SUCCESS) {
1232 NDIS_LOCK(sc);
1233 sc->ndis_block->nmb_miniportadapterctx = NULL;
1234 NDIS_UNLOCK(sc);
1235 return(ENXIO);
1236 }
1237
1238 /*
1239 * This may look really goofy, but apparently it is possible
1240 * to halt a miniport too soon after it's been initialized.
1241 * After MiniportInitialize() finishes, pause for 1 second
1242 * to give the chip a chance to handle any short-lived timers
1243 * that were set in motion. If we call MiniportHalt() too soon,
1244 * some of the timers may not be cancelled, because the driver
1245 * expects them to fire before the halt is called.
1246 */
1247
1248 tsleep(curthread->td_proc, PWAIT, "ndwait", hz);
1249
1250 NDIS_LOCK(sc);
1251 sc->ndis_block->nmb_devicectx = sc;
1252 NDIS_UNLOCK(sc);
1253
1254 return(0);
1255 }
1256
1257 static void
1258 ndis_intrsetup(dpc, dobj, ip, sc)
1259 kdpc *dpc;
1260 device_object *dobj;
1261 irp *ip;
1262 struct ndis_softc *sc;
1263 {
1264 ndis_miniport_interrupt *intr;
1265
1266 intr = sc->ndis_block->nmb_interrupt;
1267
1268 /* Sanity check. */
1269
1270 if (intr == NULL)
1271 return;
1272
1273 KeAcquireSpinLockAtDpcLevel(&intr->ni_dpccountlock);
1274 KeResetEvent(&intr->ni_dpcevt);
1275 if (KeInsertQueueDpc(&intr->ni_dpc, NULL, NULL) == TRUE)
1276 intr->ni_dpccnt++;
1277 KeReleaseSpinLockFromDpcLevel(&intr->ni_dpccountlock);
1278
1279 return;
1280 }
1281
1282 int
1283 ndis_get_info(arg, oid, buf, buflen)
1284 void *arg;
1285 ndis_oid oid;
1286 void *buf;
1287 int *buflen;
1288 {
1289 struct ndis_softc *sc;
1290 ndis_status rval;
1291 ndis_handle adapter;
1292 ndis_queryinfo_handler queryfunc;
1293 uint32_t byteswritten = 0, bytesneeded = 0;
1294 uint8_t irql;
1295 uint64_t duetime;
1296
1297 sc = arg;
1298
1299 KeAcquireSpinLock(&sc->ndis_block->nmb_lock, &irql);
1300
1301 if (sc->ndis_block->nmb_pendingreq != NULL) {
1302 KeReleaseSpinLock(&sc->ndis_block->nmb_lock, irql);
1303 panic("ndis_get_info() called while other request pending");
1304 } else
1305 sc->ndis_block->nmb_pendingreq = (ndis_request *)sc;
1306
1307 queryfunc = sc->ndis_chars->nmc_queryinfo_func;
1308 adapter = sc->ndis_block->nmb_miniportadapterctx;
1309
1310 if (adapter == NULL || queryfunc == NULL ||
1311 sc->ndis_block->nmb_devicectx == NULL) {
1312 sc->ndis_block->nmb_pendingreq = NULL;
1313 KeReleaseSpinLock(&sc->ndis_block->nmb_lock, irql);
1314 return(ENXIO);
1315 }
1316
1317 rval = MSCALL6(queryfunc, adapter, oid, buf, *buflen,
1318 &byteswritten, &bytesneeded);
1319
1320 sc->ndis_block->nmb_pendingreq = NULL;
1321
1322 KeReleaseSpinLock(&sc->ndis_block->nmb_lock, irql);
1323
1324 /* Wait for requests that block. */
1325
1326 if (rval == NDIS_STATUS_PENDING) {
1327 /* Wait up to 5 seconds. */
1328 duetime = (5 * 1000000) * -10;
1329 KeResetEvent(&sc->ndis_block->nmb_getevent);
1330 KeWaitForSingleObject(&sc->ndis_block->nmb_getevent,
1331 0, 0, FALSE, &duetime);
1332 rval = sc->ndis_block->nmb_getstat;
1333 }
1334
1335 if (byteswritten)
1336 *buflen = byteswritten;
1337 if (bytesneeded)
1338 *buflen = bytesneeded;
1339
1340 if (rval == NDIS_STATUS_INVALID_LENGTH ||
1341 rval == NDIS_STATUS_BUFFER_TOO_SHORT)
1342 return(ENOSPC);
1343
1344 if (rval == NDIS_STATUS_INVALID_OID)
1345 return(EINVAL);
1346
1347 if (rval == NDIS_STATUS_NOT_SUPPORTED ||
1348 rval == NDIS_STATUS_NOT_ACCEPTED)
1349 return(ENOTSUP);
1350
1351 if (rval != NDIS_STATUS_SUCCESS)
1352 return(ENODEV);
1353
1354 return(0);
1355 }
1356
1357 uint32_t
1358 NdisAddDevice(drv, pdo)
1359 driver_object *drv;
1360 device_object *pdo;
1361 {
1362 device_object *fdo;
1363 ndis_miniport_block *block;
1364 struct ndis_softc *sc;
1365 uint32_t status;
1366 int error;
1367
1368 sc = device_get_softc(pdo->do_devext);
1369
1370 if (sc->ndis_iftype == PCMCIABus || sc->ndis_iftype == PCIBus) {
1371 error = bus_setup_intr(sc->ndis_dev, sc->ndis_irq,
1372 INTR_TYPE_NET | INTR_MPSAFE,
1373 ntoskrnl_intr, NULL, &sc->ndis_intrhand);
1374 if (error)
1375 return(NDIS_STATUS_FAILURE);
1376 }
1377
1378 status = IoCreateDevice(drv, sizeof(ndis_miniport_block), NULL,
1379 FILE_DEVICE_UNKNOWN, 0, FALSE, &fdo);
1380
1381 if (status != STATUS_SUCCESS)
1382 return(status);
1383
1384 block = fdo->do_devext;
1385
1386 block->nmb_filterdbs.nf_ethdb = block;
1387 block->nmb_deviceobj = fdo;
1388 block->nmb_physdeviceobj = pdo;
1389 block->nmb_nextdeviceobj = IoAttachDeviceToDeviceStack(fdo, pdo);
1390 KeInitializeSpinLock(&block->nmb_lock);
1391 KeInitializeSpinLock(&block->nmb_returnlock);
1392 KeInitializeEvent(&block->nmb_getevent, EVENT_TYPE_NOTIFY, TRUE);
1393 KeInitializeEvent(&block->nmb_setevent, EVENT_TYPE_NOTIFY, TRUE);
1394 KeInitializeEvent(&block->nmb_resetevent, EVENT_TYPE_NOTIFY, TRUE);
1395 InitializeListHead(&block->nmb_parmlist);
1396 InitializeListHead(&block->nmb_returnlist);
1397 block->nmb_returnitem = IoAllocateWorkItem(fdo);
1398
1399 /*
1400 * Stash pointers to the miniport block and miniport
1401 * characteristics info in the if_ndis softc so the
1402 * UNIX wrapper driver can get to them later.
1403 */
1404 sc->ndis_block = block;
1405 sc->ndis_chars = IoGetDriverObjectExtension(drv, (void *)1);
1406
1407 /*
1408 * If the driver has a MiniportTransferData() function,
1409 * we should allocate a private RX packet pool.
1410 */
1411
1412 if (sc->ndis_chars->nmc_transferdata_func != NULL) {
1413 NdisAllocatePacketPool(&status, &block->nmb_rxpool,
1414 32, PROTOCOL_RESERVED_SIZE_IN_PACKET);
1415 if (status != NDIS_STATUS_SUCCESS) {
1416 IoDetachDevice(block->nmb_nextdeviceobj);
1417 IoDeleteDevice(fdo);
1418 return(status);
1419 }
1420 InitializeListHead((&block->nmb_packetlist));
1421 }
1422
1423 /* Give interrupt handling priority over timers. */
1424 IoInitializeDpcRequest(fdo, kernndis_functbl[6].ipt_wrap);
1425 KeSetImportanceDpc(&fdo->do_dpc, KDPC_IMPORTANCE_HIGH);
1426
1427 /* Finish up BSD-specific setup. */
1428
1429 block->nmb_signature = (void *)0xcafebabe;
1430 block->nmb_status_func = kernndis_functbl[0].ipt_wrap;
1431 block->nmb_statusdone_func = kernndis_functbl[1].ipt_wrap;
1432 block->nmb_setdone_func = kernndis_functbl[2].ipt_wrap;
1433 block->nmb_querydone_func = kernndis_functbl[3].ipt_wrap;
1434 block->nmb_resetdone_func = kernndis_functbl[4].ipt_wrap;
1435 block->nmb_sendrsrc_func = kernndis_functbl[5].ipt_wrap;
1436 block->nmb_pendingreq = NULL;
1437
1438 TAILQ_INSERT_TAIL(&ndis_devhead, block, link);
1439
1440 return (STATUS_SUCCESS);
1441 }
1442
1443 int
1444 ndis_unload_driver(arg)
1445 void *arg;
1446 {
1447 struct ndis_softc *sc;
1448 device_object *fdo;
1449
1450 sc = arg;
1451
1452 if (sc->ndis_intrhand)
1453 bus_teardown_intr(sc->ndis_dev,
1454 sc->ndis_irq, sc->ndis_intrhand);
1455
1456 if (sc->ndis_block->nmb_rlist != NULL)
1457 free(sc->ndis_block->nmb_rlist, M_DEVBUF);
1458
1459 ndis_flush_sysctls(sc);
1460
1461 TAILQ_REMOVE(&ndis_devhead, sc->ndis_block, link);
1462
1463 if (sc->ndis_chars->nmc_transferdata_func != NULL)
1464 NdisFreePacketPool(sc->ndis_block->nmb_rxpool);
1465 fdo = sc->ndis_block->nmb_deviceobj;
1466 IoFreeWorkItem(sc->ndis_block->nmb_returnitem);
1467 IoDetachDevice(sc->ndis_block->nmb_nextdeviceobj);
1468 IoDeleteDevice(fdo);
1469
1470 return(0);
1471 }
Cache object: 9b7b072cb0786c6535868e92fdc84952
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