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 * $FreeBSD: src/sys/compat/ndis/kern_ndis.c,v 1.111 2011/02/23 21:45:28 brucec Exp $
33 */
34
35 #include "use_usb4bsd.h"
36
37 #include <sys/param.h>
38 #include <sys/systm.h>
39 #include <sys/unistd.h>
40 #include <sys/types.h>
41 #include <sys/errno.h>
42 #include <sys/callout.h>
43 #include <sys/socket.h>
44 #include <sys/queue.h>
45 #include <sys/sysctl.h>
46 #include <sys/proc.h>
47 #include <sys/malloc.h>
48 #include <sys/lock.h>
49 #include <sys/mutex.h>
50 #include <sys/conf.h>
51
52 #include <sys/kernel.h>
53 #include <sys/module.h>
54 #include <sys/kthread.h>
55 #include <sys/bus.h>
56 #include <sys/rman.h>
57 #include <sys/mplock2.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 <netproto/802_11/ieee80211_var.h>
66 #include <netproto/802_11/ieee80211_ioctl.h>
67
68 #if NUSB4BSD > 0
69 #include <bus/u4b/usb.h>
70 #include <bus/u4b/usbdi.h>
71 #else
72 #include <bus/usb/usb.h>
73 #include <bus/usb/usbdi.h>
74 #endif
75
76 #include <emulation/ndis/pe_var.h>
77 #include <emulation/ndis/cfg_var.h>
78 #include <emulation/ndis/resource_var.h>
79 #include <emulation/ndis/ntoskrnl_var.h>
80 #include <emulation/ndis/ndis_var.h>
81 #include <emulation/ndis/hal_var.h>
82 #if NUSB4BSD > 0
83 #include <emulation/ndis/u4bd_var.h>
84 #else
85 #include <emulation/ndis/usbd_var.h>
86 #endif
87 #include <dev/netif/ndis/if_ndisvar.h>
88
89 #define NDIS_DUMMY_PATH "\\\\some\\bogus\\path"
90
91 static void ndis_status_func(ndis_handle, ndis_status, void *, uint32_t);
92 static void ndis_statusdone_func(ndis_handle);
93 static void ndis_setdone_func(ndis_handle, ndis_status);
94 static void ndis_getdone_func(ndis_handle, ndis_status);
95 static void ndis_resetdone_func(ndis_handle, ndis_status, uint8_t);
96 static void ndis_sendrsrcavail_func(ndis_handle);
97 static void ndis_intrsetup(kdpc *, device_object *,
98 irp *, struct ndis_softc *);
99 static void ndis_return(device_object *, void *);
100
101 static image_patch_table kernndis_functbl[] = {
102 IMPORT_SFUNC(ndis_status_func, 4),
103 IMPORT_SFUNC(ndis_statusdone_func, 1),
104 IMPORT_SFUNC(ndis_setdone_func, 2),
105 IMPORT_SFUNC(ndis_getdone_func, 2),
106 IMPORT_SFUNC(ndis_resetdone_func, 3),
107 IMPORT_SFUNC(ndis_sendrsrcavail_func, 1),
108 IMPORT_SFUNC(ndis_intrsetup, 4),
109 IMPORT_SFUNC(ndis_return, 1),
110
111 { NULL, NULL, NULL }
112 };
113
114 static struct nd_head ndis_devhead;
115
116 /*
117 * This allows us to export our symbols to other modules.
118 *
119 * Note: some of the subsystems depend on each other, so the
120 * order in which they're started is important. The order of
121 * importance is:
122 *
123 * HAL - spinlocks and IRQL manipulation
124 * ntoskrnl - DPC and workitem threads, object waiting
125 * windrv - driver/device registration
126 *
127 * The HAL should also be the last thing shut down, since
128 * the ntoskrnl subsystem will use spinlocks right up until
129 * the DPC and workitem threads are terminated.
130 */
131
132 static int
133 ndis_modevent(module_t mod, int cmd, void *arg)
134 {
135 int error = 0;
136 image_patch_table *patch;
137
138 switch (cmd) {
139 case MOD_LOAD:
140 /* Initialize subsystems */
141 hal_libinit();
142 ntoskrnl_libinit();
143 windrv_libinit();
144 ndis_libinit();
145 usbd_libinit();
146
147 patch = kernndis_functbl;
148 while (patch->ipt_func != NULL) {
149 windrv_wrap((funcptr)patch->ipt_func,
150 (funcptr *)&patch->ipt_wrap,
151 patch->ipt_argcnt, patch->ipt_ftype);
152 patch++;
153 }
154
155 TAILQ_INIT(&ndis_devhead);
156 break;
157 case MOD_SHUTDOWN:
158 if (TAILQ_FIRST(&ndis_devhead) == NULL) {
159 /* Shut down subsystems */
160 ndis_libfini();
161 usbd_libfini();
162 windrv_libfini();
163 ntoskrnl_libfini();
164 hal_libfini();
165
166 patch = kernndis_functbl;
167 while (patch->ipt_func != NULL) {
168 windrv_unwrap(patch->ipt_wrap);
169 patch++;
170 }
171 }
172 break;
173 case MOD_UNLOAD:
174 /* Shut down subsystems */
175 ndis_libfini();
176 usbd_libfini();
177 windrv_libfini();
178 ntoskrnl_libfini();
179 hal_libfini();
180
181 patch = kernndis_functbl;
182 while (patch->ipt_func != NULL) {
183 windrv_unwrap(patch->ipt_wrap);
184 patch++;
185 }
186
187 break;
188 default:
189 error = EINVAL;
190 break;
191 }
192
193 return (error);
194 }
195 DEV_MODULE(ndis, ndis_modevent, NULL);
196 MODULE_VERSION(ndis, 1);
197
198 static void
199 ndis_sendrsrcavail_func(ndis_handle adapter)
200 {
201 }
202
203 static void
204 ndis_status_func(ndis_handle adapter, ndis_status status, void *sbuf,
205 uint32_t slen)
206 {
207 ndis_miniport_block *block;
208 struct ndis_softc *sc;
209 struct ifnet *ifp;
210
211 block = adapter;
212 sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
213 ifp = sc->ifp;
214 if (ifp->if_flags & IFF_DEBUG)
215 device_printf(sc->ndis_dev, "status: %x\n", status);
216 }
217
218 static void
219 ndis_statusdone_func(ndis_handle adapter)
220 {
221 ndis_miniport_block *block;
222 struct ndis_softc *sc;
223 struct ifnet *ifp;
224
225 block = adapter;
226 sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
227 ifp = sc->ifp;
228 if (ifp->if_flags & IFF_DEBUG)
229 device_printf(sc->ndis_dev, "status complete\n");
230 }
231
232 static void
233 ndis_setdone_func(ndis_handle adapter, ndis_status status)
234 {
235 ndis_miniport_block *block;
236 block = adapter;
237
238 block->nmb_setstat = status;
239 KeSetEvent(&block->nmb_setevent, IO_NO_INCREMENT, FALSE);
240 }
241
242 static void
243 ndis_getdone_func(ndis_handle adapter, ndis_status status)
244 {
245 ndis_miniport_block *block;
246 block = adapter;
247
248 block->nmb_getstat = status;
249 KeSetEvent(&block->nmb_getevent, IO_NO_INCREMENT, FALSE);
250 }
251
252 static void
253 ndis_resetdone_func(ndis_handle adapter, ndis_status status,
254 uint8_t addressingreset)
255 {
256 ndis_miniport_block *block;
257 struct ndis_softc *sc;
258 struct ifnet *ifp;
259
260 block = adapter;
261 sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
262 ifp = sc->ifp;
263
264 if (ifp->if_flags & IFF_DEBUG)
265 device_printf(sc->ndis_dev, "reset done...\n");
266 KeSetEvent(&block->nmb_resetevent, IO_NO_INCREMENT, FALSE);
267 }
268
269 int
270 ndis_create_sysctls(void *arg)
271 {
272 struct ndis_softc *sc;
273 ndis_cfg *vals;
274 char buf[256];
275 struct sysctl_oid *oidp;
276 struct sysctl_ctx_entry *e;
277
278 if (arg == NULL)
279 return (EINVAL);
280
281 sc = arg;
282 vals = sc->ndis_regvals;
283
284 TAILQ_INIT(&sc->ndis_cfglist_head);
285
286 /* Create the sysctl tree. */
287
288 sc->ndis_tree = SYSCTL_ADD_NODE(&sc->ndis_ctx,
289 SYSCTL_STATIC_CHILDREN(_hw), OID_AUTO,
290 device_get_nameunit(sc->ndis_dev), CTLFLAG_RD, 0,
291 device_get_desc(sc->ndis_dev));
292
293 /* Add the driver-specific registry keys. */
294
295 while(1) {
296 if (vals->nc_cfgkey == NULL)
297 break;
298
299 if (vals->nc_idx != sc->ndis_devidx) {
300 vals++;
301 continue;
302 }
303
304 /* See if we already have a sysctl with this name */
305
306 oidp = NULL;
307 TAILQ_FOREACH(e, &sc->ndis_ctx, link) {
308 oidp = e->entry;
309 if (strcasecmp(oidp->oid_name, vals->nc_cfgkey) == 0)
310 break;
311 oidp = NULL;
312 }
313
314 if (oidp != NULL) {
315 vals++;
316 continue;
317 }
318
319 ndis_add_sysctl(sc, vals->nc_cfgkey, vals->nc_cfgdesc,
320 vals->nc_val, CTLFLAG_RW);
321 vals++;
322 }
323
324 /* Now add a couple of builtin keys. */
325
326 /*
327 * Environment can be either Windows (0) or WindowsNT (1).
328 * We qualify as the latter.
329 */
330 ndis_add_sysctl(sc, "Environment",
331 "Windows environment", "1", CTLFLAG_RD);
332
333 /* NDIS version should be 5.1. */
334 ndis_add_sysctl(sc, "NdisVersion",
335 "NDIS API Version", "0x00050001", CTLFLAG_RD);
336
337 /*
338 * Some miniport drivers rely on the existence of the SlotNumber,
339 * NetCfgInstanceId and DriverDesc keys.
340 */
341 ndis_add_sysctl(sc, "SlotNumber", "Slot Number", "01", CTLFLAG_RD);
342 ndis_add_sysctl(sc, "NetCfgInstanceId", "NetCfgInstanceId",
343 "{12345678-1234-5678-CAFE0-123456789ABC}", CTLFLAG_RD);
344 ndis_add_sysctl(sc, "DriverDesc", "Driver Description",
345 "NDIS Network Adapter", CTLFLAG_RD);
346
347 /* Bus type (PCI, PCMCIA, etc...) */
348 ksprintf(buf, "%d", (int)sc->ndis_iftype);
349 ndis_add_sysctl(sc, "BusType", "Bus Type", buf, CTLFLAG_RD);
350
351 if (sc->ndis_res_io != NULL) {
352 ksprintf(buf, "0x%lx", rman_get_start(sc->ndis_res_io));
353 ndis_add_sysctl(sc, "IOBaseAddress",
354 "Base I/O Address", buf, CTLFLAG_RD);
355 }
356
357 if (sc->ndis_irq != NULL) {
358 ksprintf(buf, "%lu", rman_get_start(sc->ndis_irq));
359 ndis_add_sysctl(sc, "InterruptNumber",
360 "Interrupt Number", buf, CTLFLAG_RD);
361 }
362
363 return (0);
364 }
365
366 int
367 ndis_add_sysctl(void *arg, char *key, char *desc, char *val, int flag)
368 {
369 struct ndis_softc *sc;
370 struct ndis_cfglist *cfg;
371 char descstr[256];
372
373 sc = arg;
374
375 cfg = kmalloc(sizeof(struct ndis_cfglist), M_DEVBUF, M_WAITOK|M_ZERO);
376 cfg->ndis_cfg.nc_cfgkey = kstrdup(key, M_DEVBUF);
377 if (desc == NULL) {
378 ksnprintf(descstr, sizeof(descstr), "%s (dynamic)", key);
379 cfg->ndis_cfg.nc_cfgdesc = kstrdup(descstr, M_DEVBUF);
380 } else
381 cfg->ndis_cfg.nc_cfgdesc = kstrdup(desc, M_DEVBUF);
382 strcpy(cfg->ndis_cfg.nc_val, val);
383
384 TAILQ_INSERT_TAIL(&sc->ndis_cfglist_head, cfg, link);
385
386 cfg->ndis_oid =
387 SYSCTL_ADD_STRING(&sc->ndis_ctx, SYSCTL_CHILDREN(sc->ndis_tree),
388 OID_AUTO, cfg->ndis_cfg.nc_cfgkey, flag,
389 cfg->ndis_cfg.nc_val, sizeof(cfg->ndis_cfg.nc_val),
390 cfg->ndis_cfg.nc_cfgdesc);
391
392 return (0);
393 }
394
395 /*
396 * Somewhere, somebody decided "hey, let's automatically create
397 * a sysctl tree for each device instance as it's created -- it'll
398 * make life so much easier!" Lies. Why must they turn the kernel
399 * into a house of lies?
400 */
401
402 int
403 ndis_flush_sysctls(void *arg)
404 {
405 struct ndis_softc *sc;
406 struct ndis_cfglist *cfg;
407 struct sysctl_ctx_list *clist;
408
409 sc = arg;
410
411 clist = &sc->ndis_ctx;
412
413 while (!TAILQ_EMPTY(&sc->ndis_cfglist_head)) {
414 cfg = TAILQ_FIRST(&sc->ndis_cfglist_head);
415 TAILQ_REMOVE(&sc->ndis_cfglist_head, cfg, link);
416 sysctl_ctx_entry_del(clist, cfg->ndis_oid);
417 sysctl_remove_oid(cfg->ndis_oid, 1, 0);
418 kfree(cfg->ndis_cfg.nc_cfgkey, M_DEVBUF);
419 kfree(cfg->ndis_cfg.nc_cfgdesc, M_DEVBUF);
420 kfree(cfg, M_DEVBUF);
421 }
422
423 return (0);
424 }
425
426 void *
427 ndis_get_routine_address(struct image_patch_table *functbl, char *name)
428 {
429 int i;
430
431 for (i = 0; functbl[i].ipt_name != NULL; i++)
432 if (strcmp(name, functbl[i].ipt_name) == 0)
433 return (functbl[i].ipt_wrap);
434 return (NULL);
435 }
436
437 static void
438 ndis_return(device_object *dobj, void *arg)
439 {
440 ndis_miniport_block *block;
441 ndis_miniport_characteristics *ch;
442 ndis_return_handler returnfunc;
443 ndis_handle adapter;
444 ndis_packet *p;
445 uint8_t irql;
446 list_entry *l;
447
448 block = arg;
449 ch = IoGetDriverObjectExtension(dobj->do_drvobj, (void *)1);
450
451 p = arg;
452 adapter = block->nmb_miniportadapterctx;
453
454 if (adapter == NULL)
455 return;
456
457 returnfunc = ch->nmc_return_packet_func;
458
459 KeAcquireSpinLock(&block->nmb_returnlock, &irql);
460 while (!IsListEmpty(&block->nmb_returnlist)) {
461 l = RemoveHeadList((&block->nmb_returnlist));
462 p = CONTAINING_RECORD(l, ndis_packet, np_list);
463 InitializeListHead((&p->np_list));
464 KeReleaseSpinLock(&block->nmb_returnlock, irql);
465 MSCALL2(returnfunc, adapter, p);
466 KeAcquireSpinLock(&block->nmb_returnlock, &irql);
467 }
468 KeReleaseSpinLock(&block->nmb_returnlock, irql);
469 }
470
471 static void
472 ndis_reference_packet(void *arg)
473 {
474 ndis_packet *p;
475
476 if (arg == NULL)
477 return;
478
479 p = arg;
480
481 /* Increment refcount. */
482 atomic_add_int(&p->np_refcnt, 1);
483 }
484
485 void
486 ndis_return_packet(void *arg)
487 {
488 ndis_packet *p;
489 ndis_miniport_block *block;
490
491 if (arg == NULL)
492 return;
493
494 p = arg;
495
496 /* Release packet when refcount hits zero, otherwise return. */
497 if (atomic_fetchadd_int(&p->np_refcnt, -1) > 1)
498 return;
499
500 block = ((struct ndis_softc *)p->np_softc)->ndis_block;
501
502 KeAcquireSpinLockAtDpcLevel(&block->nmb_returnlock);
503 InitializeListHead((&p->np_list));
504 InsertHeadList((&block->nmb_returnlist), (&p->np_list));
505 KeReleaseSpinLockFromDpcLevel(&block->nmb_returnlock);
506
507 IoQueueWorkItem(block->nmb_returnitem,
508 (io_workitem_func)kernndis_functbl[7].ipt_wrap,
509 WORKQUEUE_CRITICAL, block);
510 }
511
512 void
513 ndis_free_bufs(ndis_buffer *b0)
514 {
515 ndis_buffer *next;
516
517 if (b0 == NULL)
518 return;
519
520 while(b0 != NULL) {
521 next = b0->mdl_next;
522 IoFreeMdl(b0);
523 b0 = next;
524 }
525 }
526
527 void
528 ndis_free_packet(ndis_packet *p)
529 {
530 if (p == NULL)
531 return;
532
533 ndis_free_bufs(p->np_private.npp_head);
534 NdisFreePacket(p);
535 }
536
537 int
538 ndis_convert_res(void *arg)
539 {
540 struct ndis_softc *sc;
541 ndis_resource_list *rl = NULL;
542 cm_partial_resource_desc *prd = NULL;
543 ndis_miniport_block *block;
544 device_t dev;
545 struct resource_list *brl;
546 struct resource_list_entry *brle;
547 struct resource_list brl_rev;
548 struct resource_list_entry *n;
549 int error = 0;
550
551 sc = arg;
552 block = sc->ndis_block;
553 dev = sc->ndis_dev;
554
555 SLIST_INIT(&brl_rev);
556
557 rl = kmalloc(sizeof(ndis_resource_list) +
558 (sizeof(cm_partial_resource_desc) * (sc->ndis_rescnt - 1)),
559 M_DEVBUF, M_WAITOK|M_NULLOK|M_ZERO);
560
561 if (rl == NULL)
562 return (ENOMEM);
563
564 rl->cprl_version = 5;
565 rl->cprl_revision = 1;
566 rl->cprl_count = sc->ndis_rescnt;
567 prd = rl->cprl_partial_descs;
568
569 brl = BUS_GET_RESOURCE_LIST(dev, dev);
570
571 if (brl != NULL) {
572
573 /*
574 * We have a small problem. Some PCI devices have
575 * multiple I/O ranges. Windows orders them starting
576 * from lowest numbered BAR to highest. We discover
577 * them in that order too, but insert them into a singly
578 * linked list head first, which means when time comes
579 * to traverse the list, we enumerate them in reverse
580 * order. This screws up some drivers which expect the
581 * BARs to be in ascending order so that they can choose
582 * the "first" one as their register space. Unfortunately,
583 * in order to fix this, we have to create our own
584 * temporary list with the entries in reverse order.
585 */
586
587 SLIST_FOREACH(brle, brl, link) {
588 n = kmalloc(sizeof(struct resource_list_entry),
589 M_TEMP, M_WAITOK|M_NULLOK);
590 if (n == NULL) {
591 error = ENOMEM;
592 goto bad;
593 }
594 bcopy((char *)brle, (char *)n,
595 sizeof(struct resource_list_entry));
596 SLIST_INSERT_HEAD(&brl_rev, n, link);
597 }
598
599 SLIST_FOREACH(brle, &brl_rev, link) {
600 switch (brle->type) {
601 case SYS_RES_IOPORT:
602 prd->cprd_type = CmResourceTypePort;
603 prd->cprd_flags = CM_RESOURCE_PORT_IO;
604 prd->cprd_sharedisp =
605 CmResourceShareDeviceExclusive;
606 prd->u.cprd_port.cprd_start.np_quad =
607 brle->start;
608 prd->u.cprd_port.cprd_len = brle->count;
609 break;
610 case SYS_RES_MEMORY:
611 prd->cprd_type = CmResourceTypeMemory;
612 prd->cprd_flags =
613 CM_RESOURCE_MEMORY_READ_WRITE;
614 prd->cprd_sharedisp =
615 CmResourceShareDeviceExclusive;
616 prd->u.cprd_mem.cprd_start.np_quad =
617 brle->start;
618 prd->u.cprd_mem.cprd_len = brle->count;
619 break;
620 case SYS_RES_IRQ:
621 prd->cprd_type = CmResourceTypeInterrupt;
622 prd->cprd_flags = 0;
623 /*
624 * Always mark interrupt resources as
625 * shared, since in our implementation,
626 * they will be.
627 */
628 prd->cprd_sharedisp =
629 CmResourceShareShared;
630 prd->u.cprd_intr.cprd_level = brle->start;
631 prd->u.cprd_intr.cprd_vector = brle->start;
632 prd->u.cprd_intr.cprd_affinity = 0;
633 break;
634 default:
635 break;
636 }
637 prd++;
638 }
639 }
640
641 block->nmb_rlist = rl;
642
643 bad:
644
645 while (!SLIST_EMPTY(&brl_rev)) {
646 n = SLIST_FIRST(&brl_rev);
647 SLIST_REMOVE_HEAD(&brl_rev, link);
648 kfree (n, M_TEMP);
649 }
650
651 return (error);
652 }
653
654 /*
655 * Map an NDIS packet to an mbuf list. When an NDIS driver receives a
656 * packet, it will hand it to us in the form of an ndis_packet,
657 * which we need to convert to an mbuf that is then handed off
658 * to the stack. Note: we configure the mbuf list so that it uses
659 * the memory regions specified by the ndis_buffer structures in
660 * the ndis_packet as external storage. In most cases, this will
661 * point to a memory region allocated by the driver (either by
662 * ndis_malloc_withtag() or ndis_alloc_sharedmem()). We expect
663 * the driver to handle kfree()ing this region for is, so we set up
664 * a dummy no-op free handler for it.
665 */
666
667 int
668 ndis_ptom(struct mbuf **m0, ndis_packet *p)
669 {
670 struct mbuf *m = NULL, *prev = NULL;
671 ndis_buffer *buf;
672 ndis_packet_private *priv;
673 uint32_t totlen = 0;
674 struct ifnet *ifp;
675 struct ether_header *eh;
676 int diff;
677
678 if (p == NULL || m0 == NULL)
679 return (EINVAL);
680
681 priv = &p->np_private;
682 buf = priv->npp_head;
683 p->np_refcnt = 0;
684
685 for (buf = priv->npp_head; buf != NULL; buf = buf->mdl_next) {
686 if (buf == priv->npp_head) {
687 /* XXX swildner: why not MT_HEADER? (see FreeBSD) */
688 MGETHDR(m, MB_DONTWAIT, MT_DATA);
689 } else {
690 MGET(m, MB_DONTWAIT, MT_DATA);
691 }
692 if (m == NULL) {
693 m_freem(*m0);
694 *m0 = NULL;
695 return (ENOBUFS);
696 }
697 m->m_len = MmGetMdlByteCount(buf);
698 m->m_data = MmGetMdlVirtualAddress(buf);
699 m_extadd(m, m->m_data, m->m_len, ndis_reference_packet,
700 ndis_return_packet, p);
701 // p->np_refcnt++;
702
703 totlen += m->m_len;
704 if (m->m_flags & M_PKTHDR)
705 *m0 = m;
706 else
707 prev->m_next = m;
708 prev = m;
709 }
710
711 /*
712 * This is a hack to deal with the Marvell 8335 driver
713 * which, when associated with an AP in WPA-PSK mode,
714 * seems to overpad its frames by 8 bytes. I don't know
715 * that the extra 8 bytes are for, and they're not there
716 * in open mode, so for now clamp the frame size at 1514
717 * until I can figure out how to deal with this properly,
718 * otherwise if_ethersubr() will spank us by discarding
719 * the 'oversize' frames.
720 */
721
722 eh = mtod((*m0), struct ether_header *);
723 ifp = ((struct ndis_softc *)p->np_softc)->ifp;
724 if (totlen > ETHER_MAX_FRAME(ifp, eh->ether_type, FALSE)) {
725 diff = totlen - ETHER_MAX_FRAME(ifp, eh->ether_type, FALSE);
726 totlen -= diff;
727 m->m_len -= diff;
728 }
729 (*m0)->m_pkthdr.len = totlen;
730
731 return (0);
732 }
733
734 /*
735 * Create an NDIS packet from an mbuf chain.
736 * This is used mainly when transmitting packets, where we need
737 * to turn an mbuf off an interface's send queue and transform it
738 * into an NDIS packet which will be fed into the NDIS driver's
739 * send routine.
740 *
741 * NDIS packets consist of two parts: an ndis_packet structure,
742 * which is vaguely analagous to the pkthdr portion of an mbuf,
743 * and one or more ndis_buffer structures, which define the
744 * actual memory segments in which the packet data resides.
745 * We need to allocate one ndis_buffer for each mbuf in a chain,
746 * plus one ndis_packet as the header.
747 */
748
749 int
750 ndis_mtop(struct mbuf *m0, ndis_packet **p)
751 {
752 struct mbuf *m;
753 ndis_buffer *buf = NULL, *prev = NULL;
754 ndis_packet_private *priv;
755
756 if (p == NULL || *p == NULL || m0 == NULL)
757 return (EINVAL);
758
759 priv = &(*p)->np_private;
760 priv->npp_totlen = m0->m_pkthdr.len;
761
762 for (m = m0; m != NULL; m = m->m_next) {
763 if (m->m_len == 0)
764 continue;
765 buf = IoAllocateMdl(m->m_data, m->m_len, FALSE, FALSE, NULL);
766 if (buf == NULL) {
767 ndis_free_packet(*p);
768 *p = NULL;
769 return (ENOMEM);
770 }
771 MmBuildMdlForNonPagedPool(buf);
772
773 if (priv->npp_head == NULL)
774 priv->npp_head = buf;
775 else
776 prev->mdl_next = buf;
777 prev = buf;
778 }
779
780 priv->npp_tail = buf;
781
782 return (0);
783 }
784
785 int
786 ndis_get_supported_oids(void *arg, ndis_oid **oids, int *oidcnt)
787 {
788 int len, rval;
789 ndis_oid *o;
790
791 if (arg == NULL || oids == NULL || oidcnt == NULL)
792 return (EINVAL);
793 len = 0;
794 ndis_get_info(arg, OID_GEN_SUPPORTED_LIST, NULL, &len);
795
796 o = kmalloc(len, M_DEVBUF, M_WAITOK);
797
798 rval = ndis_get_info(arg, OID_GEN_SUPPORTED_LIST, o, &len);
799
800 if (rval) {
801 kfree(o, M_DEVBUF);
802 return (rval);
803 }
804
805 *oids = o;
806 *oidcnt = len / 4;
807
808 return (0);
809 }
810
811 int
812 ndis_set_info(void *arg, ndis_oid oid, void *buf, int *buflen)
813 {
814 struct ndis_softc *sc;
815 ndis_status rval;
816 ndis_handle adapter;
817 ndis_setinfo_handler setfunc;
818 uint32_t byteswritten = 0, bytesneeded = 0;
819 uint8_t irql;
820 uint64_t duetime;
821
822 /*
823 * According to the NDIS spec, MiniportQueryInformation()
824 * and MiniportSetInformation() requests are handled serially:
825 * once one request has been issued, we must wait for it to
826 * finish before allowing another request to proceed.
827 */
828
829 sc = arg;
830
831 KeResetEvent(&sc->ndis_block->nmb_setevent);
832
833 KeAcquireSpinLock(&sc->ndis_block->nmb_lock, &irql);
834
835 if (sc->ndis_block->nmb_pendingreq != NULL) {
836 KeReleaseSpinLock(&sc->ndis_block->nmb_lock, irql);
837 panic("ndis_set_info() called while other request pending");
838 } else
839 sc->ndis_block->nmb_pendingreq = (ndis_request *)sc;
840
841 setfunc = sc->ndis_chars->nmc_setinfo_func;
842 adapter = sc->ndis_block->nmb_miniportadapterctx;
843
844 if (adapter == NULL || setfunc == NULL ||
845 sc->ndis_block->nmb_devicectx == NULL) {
846 sc->ndis_block->nmb_pendingreq = NULL;
847 KeReleaseSpinLock(&sc->ndis_block->nmb_lock, irql);
848 return (ENXIO);
849 }
850
851 rval = MSCALL6(setfunc, adapter, oid, buf, *buflen,
852 &byteswritten, &bytesneeded);
853
854 sc->ndis_block->nmb_pendingreq = NULL;
855
856 KeReleaseSpinLock(&sc->ndis_block->nmb_lock, irql);
857
858 if (rval == NDIS_STATUS_PENDING) {
859 /* Wait up to 5 seconds. */
860 duetime = (5 * 1000000) * -10;
861 KeWaitForSingleObject(&sc->ndis_block->nmb_setevent,
862 0, 0, FALSE, &duetime);
863 rval = sc->ndis_block->nmb_setstat;
864 }
865
866 if (byteswritten)
867 *buflen = byteswritten;
868 if (bytesneeded)
869 *buflen = bytesneeded;
870
871 if (rval == NDIS_STATUS_INVALID_LENGTH)
872 return (ENOSPC);
873
874 if (rval == NDIS_STATUS_INVALID_OID)
875 return (EINVAL);
876
877 if (rval == NDIS_STATUS_NOT_SUPPORTED ||
878 rval == NDIS_STATUS_NOT_ACCEPTED)
879 return (ENOTSUP);
880
881 if (rval != NDIS_STATUS_SUCCESS)
882 return (ENODEV);
883
884 return (0);
885 }
886
887 typedef void (*ndis_senddone_func)(ndis_handle, ndis_packet *, ndis_status);
888
889 int
890 ndis_send_packets(void *arg, ndis_packet **packets, int cnt)
891 {
892 struct ndis_softc *sc;
893 ndis_handle adapter;
894 ndis_sendmulti_handler sendfunc;
895 ndis_senddone_func senddonefunc;
896 int i;
897 ndis_packet *p;
898 uint8_t irql = 0;
899
900 sc = arg;
901 adapter = sc->ndis_block->nmb_miniportadapterctx;
902 if (adapter == NULL)
903 return (ENXIO);
904 sendfunc = sc->ndis_chars->nmc_sendmulti_func;
905 senddonefunc = sc->ndis_block->nmb_senddone_func;
906
907 if (NDIS_SERIALIZED(sc->ndis_block))
908 KeAcquireSpinLock(&sc->ndis_block->nmb_lock, &irql);
909
910 MSCALL3(sendfunc, adapter, packets, cnt);
911
912 for (i = 0; i < cnt; i++) {
913 p = packets[i];
914 /*
915 * Either the driver already handed the packet to
916 * ndis_txeof() due to a failure, or it wants to keep
917 * it and release it asynchronously later. Skip to the
918 * next one.
919 */
920 if (p == NULL || p->np_oob.npo_status == NDIS_STATUS_PENDING)
921 continue;
922 MSCALL3(senddonefunc, sc->ndis_block, p, p->np_oob.npo_status);
923 }
924
925 if (NDIS_SERIALIZED(sc->ndis_block))
926 KeReleaseSpinLock(&sc->ndis_block->nmb_lock, irql);
927
928 return(0);
929 }
930
931 int
932 ndis_send_packet(void *arg, ndis_packet *packet)
933 {
934 struct ndis_softc *sc;
935 ndis_handle adapter;
936 ndis_status status;
937 ndis_sendsingle_handler sendfunc;
938 ndis_senddone_func senddonefunc;
939 uint8_t irql = 0;
940
941 sc = arg;
942 adapter = sc->ndis_block->nmb_miniportadapterctx;
943 if (adapter == NULL)
944 return (ENXIO);
945 sendfunc = sc->ndis_chars->nmc_sendsingle_func;
946 senddonefunc = sc->ndis_block->nmb_senddone_func;
947
948 if (NDIS_SERIALIZED(sc->ndis_block))
949 KeAcquireSpinLock(&sc->ndis_block->nmb_lock, &irql);
950 status = MSCALL3(sendfunc, adapter, packet,
951 packet->np_private.npp_flags);
952
953 if (status == NDIS_STATUS_PENDING) {
954 if (NDIS_SERIALIZED(sc->ndis_block))
955 KeReleaseSpinLock(&sc->ndis_block->nmb_lock, irql);
956 return (0);
957 }
958
959 MSCALL3(senddonefunc, sc->ndis_block, packet, status);
960
961 if (NDIS_SERIALIZED(sc->ndis_block))
962 KeReleaseSpinLock(&sc->ndis_block->nmb_lock, irql);
963
964 return (0);
965 }
966
967 int
968 ndis_init_dma(void *arg)
969 {
970 struct ndis_softc *sc;
971 int i, error;
972
973 sc = arg;
974
975 sc->ndis_tmaps = kmalloc(sizeof(bus_dmamap_t) * sc->ndis_maxpkts,
976 M_DEVBUF, M_WAITOK|M_ZERO);
977
978 for (i = 0; i < sc->ndis_maxpkts; i++) {
979 error = bus_dmamap_create(sc->ndis_ttag, 0,
980 &sc->ndis_tmaps[i]);
981 if (error) {
982 kfree(sc->ndis_tmaps, M_DEVBUF);
983 return (ENODEV);
984 }
985 }
986
987 return (0);
988 }
989
990 int
991 ndis_destroy_dma(void *arg)
992 {
993 struct ndis_softc *sc;
994 struct mbuf *m;
995 ndis_packet *p = NULL;
996 int i;
997
998 sc = arg;
999
1000 for (i = 0; i < sc->ndis_maxpkts; i++) {
1001 if (sc->ndis_txarray[i] != NULL) {
1002 p = sc->ndis_txarray[i];
1003 m = (struct mbuf *)p->np_rsvd[1];
1004 if (m != NULL)
1005 m_freem(m);
1006 ndis_free_packet(sc->ndis_txarray[i]);
1007 }
1008 bus_dmamap_destroy(sc->ndis_ttag, sc->ndis_tmaps[i]);
1009 }
1010
1011 kfree(sc->ndis_tmaps, M_DEVBUF);
1012
1013 bus_dma_tag_destroy(sc->ndis_ttag);
1014
1015 return (0);
1016 }
1017
1018 int
1019 ndis_reset_nic(void *arg)
1020 {
1021 struct ndis_softc *sc;
1022 ndis_handle adapter;
1023 ndis_reset_handler resetfunc;
1024 uint8_t addressing_reset;
1025 int rval;
1026 uint8_t irql = 0;
1027
1028 sc = arg;
1029
1030 NDIS_LOCK(sc);
1031 adapter = sc->ndis_block->nmb_miniportadapterctx;
1032 resetfunc = sc->ndis_chars->nmc_reset_func;
1033
1034 if (adapter == NULL || resetfunc == NULL ||
1035 sc->ndis_block->nmb_devicectx == NULL) {
1036 NDIS_UNLOCK(sc);
1037 return(EIO);
1038 }
1039
1040 NDIS_UNLOCK(sc);
1041
1042 KeResetEvent(&sc->ndis_block->nmb_resetevent);
1043
1044 if (NDIS_SERIALIZED(sc->ndis_block))
1045 KeAcquireSpinLock(&sc->ndis_block->nmb_lock, &irql);
1046
1047 rval = MSCALL2(resetfunc, &addressing_reset, adapter);
1048
1049 if (NDIS_SERIALIZED(sc->ndis_block))
1050 KeReleaseSpinLock(&sc->ndis_block->nmb_lock, irql);
1051
1052 if (rval == NDIS_STATUS_PENDING)
1053 KeWaitForSingleObject(&sc->ndis_block->nmb_resetevent,
1054 0, 0, FALSE, NULL);
1055
1056 return (0);
1057 }
1058
1059 int
1060 ndis_halt_nic(void *arg)
1061 {
1062 struct ndis_softc *sc;
1063 ndis_handle adapter;
1064 ndis_halt_handler haltfunc;
1065 ndis_miniport_block *block;
1066 int empty = 0;
1067 uint8_t irql;
1068
1069 sc = arg;
1070 block = sc->ndis_block;
1071
1072 if (!cold)
1073 KeFlushQueuedDpcs();
1074
1075 /*
1076 * Wait for all packets to be returned.
1077 */
1078
1079 while (1) {
1080 KeAcquireSpinLock(&block->nmb_returnlock, &irql);
1081 empty = IsListEmpty(&block->nmb_returnlist);
1082 KeReleaseSpinLock(&block->nmb_returnlock, irql);
1083 if (empty)
1084 break;
1085 NdisMSleep(1000);
1086 }
1087
1088 NDIS_LOCK(sc);
1089 adapter = sc->ndis_block->nmb_miniportadapterctx;
1090 if (adapter == NULL) {
1091 NDIS_UNLOCK(sc);
1092 return (EIO);
1093 }
1094
1095 sc->ndis_block->nmb_devicectx = NULL;
1096
1097 /*
1098 * The adapter context is only valid after the init
1099 * handler has been called, and is invalid once the
1100 * halt handler has been called.
1101 */
1102
1103 haltfunc = sc->ndis_chars->nmc_halt_func;
1104 NDIS_UNLOCK(sc);
1105
1106 MSCALL1(haltfunc, adapter);
1107
1108 NDIS_LOCK(sc);
1109 sc->ndis_block->nmb_miniportadapterctx = NULL;
1110 NDIS_UNLOCK(sc);
1111
1112 return (0);
1113 }
1114
1115 int
1116 ndis_shutdown_nic(void *arg)
1117 {
1118 struct ndis_softc *sc;
1119 ndis_handle adapter;
1120 ndis_shutdown_handler shutdownfunc;
1121
1122 sc = arg;
1123 NDIS_LOCK(sc);
1124 adapter = sc->ndis_block->nmb_miniportadapterctx;
1125 shutdownfunc = sc->ndis_chars->nmc_shutdown_handler;
1126 NDIS_UNLOCK(sc);
1127 if (adapter == NULL || shutdownfunc == NULL)
1128 return (EIO);
1129
1130 if (sc->ndis_chars->nmc_rsvd0 == NULL)
1131 MSCALL1(shutdownfunc, adapter);
1132 else
1133 MSCALL1(shutdownfunc, sc->ndis_chars->nmc_rsvd0);
1134
1135 TAILQ_REMOVE(&ndis_devhead, sc->ndis_block, link);
1136
1137 return(0);
1138 }
1139
1140 int
1141 ndis_pnpevent_nic(void *arg, int type)
1142 {
1143 device_t dev;
1144 struct ndis_softc *sc;
1145 ndis_handle adapter;
1146 ndis_pnpevent_handler pnpeventfunc;
1147
1148 dev = arg;
1149 sc = device_get_softc(dev);
1150 NDIS_LOCK(sc);
1151 adapter = sc->ndis_block->nmb_miniportadapterctx;
1152 pnpeventfunc = sc->ndis_chars->nmc_pnpevent_handler;
1153 NDIS_UNLOCK(sc);
1154 if (adapter == NULL || pnpeventfunc == NULL)
1155 return (EIO);
1156
1157 if (sc->ndis_chars->nmc_rsvd0 == NULL)
1158 MSCALL4(pnpeventfunc, adapter, type, NULL, 0);
1159 else
1160 MSCALL4(pnpeventfunc, sc->ndis_chars->nmc_rsvd0, type, NULL, 0);
1161
1162 return (0);
1163 }
1164
1165 int
1166 ndis_init_nic(void *arg)
1167 {
1168 struct ndis_softc *sc;
1169 ndis_miniport_block *block;
1170 ndis_init_handler initfunc;
1171 ndis_status status, openstatus = 0;
1172 ndis_medium mediumarray[NdisMediumMax];
1173 uint32_t chosenmedium, i;
1174
1175 if (arg == NULL)
1176 return (EINVAL);
1177
1178 sc = arg;
1179 NDIS_LOCK(sc);
1180 block = sc->ndis_block;
1181 initfunc = sc->ndis_chars->nmc_init_func;
1182 NDIS_UNLOCK(sc);
1183
1184 sc->ndis_block->nmb_timerlist = NULL;
1185
1186 for (i = 0; i < NdisMediumMax; i++)
1187 mediumarray[i] = i;
1188
1189 status = MSCALL6(initfunc, &openstatus, &chosenmedium,
1190 mediumarray, NdisMediumMax, block, block);
1191
1192 /*
1193 * If the init fails, blow away the other exported routines
1194 * we obtained from the driver so we can't call them later.
1195 * If the init failed, none of these will work.
1196 */
1197 if (status != NDIS_STATUS_SUCCESS) {
1198 NDIS_LOCK(sc);
1199 sc->ndis_block->nmb_miniportadapterctx = NULL;
1200 NDIS_UNLOCK(sc);
1201 return (ENXIO);
1202 }
1203
1204 /*
1205 * This may look really goofy, but apparently it is possible
1206 * to halt a miniport too soon after it's been initialized.
1207 * After MiniportInitialize() finishes, pause for 1 second
1208 * to give the chip a chance to handle any short-lived timers
1209 * that were set in motion. If we call MiniportHalt() too soon,
1210 * some of the timers may not be cancelled, because the driver
1211 * expects them to fire before the halt is called.
1212 */
1213
1214 tsleep(arg, 0, "ndwait", hz);
1215
1216 NDIS_LOCK(sc);
1217 sc->ndis_block->nmb_devicectx = sc;
1218 NDIS_UNLOCK(sc);
1219
1220 return (0);
1221 }
1222
1223 static void
1224 ndis_intrsetup(kdpc *dpc, device_object *dobj, irp *ip, struct ndis_softc *sc)
1225 {
1226 ndis_miniport_interrupt *intr;
1227
1228 intr = sc->ndis_block->nmb_interrupt;
1229
1230 /* Sanity check. */
1231
1232 if (intr == NULL)
1233 return;
1234
1235 KeAcquireSpinLockAtDpcLevel(&intr->ni_dpccountlock);
1236 KeResetEvent(&intr->ni_dpcevt);
1237 if (KeInsertQueueDpc(&intr->ni_dpc, NULL, NULL) == TRUE)
1238 intr->ni_dpccnt++;
1239 KeReleaseSpinLockFromDpcLevel(&intr->ni_dpccountlock);
1240 }
1241
1242 int
1243 ndis_get_info(void *arg, ndis_oid oid, void *buf, int *buflen)
1244 {
1245 struct ndis_softc *sc;
1246 ndis_status rval;
1247 ndis_handle adapter;
1248 ndis_queryinfo_handler queryfunc;
1249 uint32_t byteswritten = 0, bytesneeded = 0;
1250 uint8_t irql;
1251 uint64_t duetime;
1252
1253 sc = arg;
1254
1255 KeResetEvent(&sc->ndis_block->nmb_getevent);
1256
1257 KeAcquireSpinLock(&sc->ndis_block->nmb_lock, &irql);
1258
1259 if (sc->ndis_block->nmb_pendingreq != NULL) {
1260 KeReleaseSpinLock(&sc->ndis_block->nmb_lock, irql);
1261 panic("ndis_get_info() called while other request pending");
1262 } else
1263 sc->ndis_block->nmb_pendingreq = (ndis_request *)sc;
1264
1265 queryfunc = sc->ndis_chars->nmc_queryinfo_func;
1266 adapter = sc->ndis_block->nmb_miniportadapterctx;
1267
1268 if (adapter == NULL || queryfunc == NULL ||
1269 sc->ndis_block->nmb_devicectx == NULL) {
1270 sc->ndis_block->nmb_pendingreq = NULL;
1271 KeReleaseSpinLock(&sc->ndis_block->nmb_lock, irql);
1272 return (ENXIO);
1273 }
1274
1275 rval = MSCALL6(queryfunc, adapter, oid, buf, *buflen,
1276 &byteswritten, &bytesneeded);
1277
1278 sc->ndis_block->nmb_pendingreq = NULL;
1279
1280 KeReleaseSpinLock(&sc->ndis_block->nmb_lock, irql);
1281
1282 /* Wait for requests that block. */
1283
1284 if (rval == NDIS_STATUS_PENDING) {
1285 /* Wait up to 5 seconds. */
1286 duetime = (5 * 1000000) * -10;
1287 KeWaitForSingleObject(&sc->ndis_block->nmb_getevent,
1288 0, 0, FALSE, &duetime);
1289 rval = sc->ndis_block->nmb_getstat;
1290 }
1291
1292 if (byteswritten)
1293 *buflen = byteswritten;
1294 if (bytesneeded)
1295 *buflen = bytesneeded;
1296
1297 if (rval == NDIS_STATUS_INVALID_LENGTH ||
1298 rval == NDIS_STATUS_BUFFER_TOO_SHORT)
1299 return (ENOSPC);
1300
1301 if (rval == NDIS_STATUS_INVALID_OID)
1302 return (EINVAL);
1303
1304 if (rval == NDIS_STATUS_NOT_SUPPORTED ||
1305 rval == NDIS_STATUS_NOT_ACCEPTED)
1306 return (ENOTSUP);
1307
1308 if (rval != NDIS_STATUS_SUCCESS)
1309 return (ENODEV);
1310
1311 return (0);
1312 }
1313
1314 uint32_t
1315 NdisAddDevice(driver_object *drv, device_object *pdo)
1316 {
1317 device_object *fdo;
1318 ndis_miniport_block *block;
1319 struct ndis_softc *sc;
1320 uint32_t status;
1321 int error;
1322
1323 sc = device_get_softc(pdo->do_devext);
1324
1325 if (sc->ndis_iftype == PCMCIABus || sc->ndis_iftype == PCIBus) {
1326 error = bus_setup_intr(sc->ndis_dev, sc->ndis_irq,
1327 INTR_MPSAFE,
1328 ntoskrnl_intr, sc, &sc->ndis_intrhand, NULL);
1329 if (error)
1330 return (NDIS_STATUS_FAILURE);
1331 }
1332
1333 status = IoCreateDevice(drv, sizeof(ndis_miniport_block), NULL,
1334 FILE_DEVICE_UNKNOWN, 0, FALSE, &fdo);
1335
1336 if (status != STATUS_SUCCESS)
1337 return (status);
1338
1339 block = fdo->do_devext;
1340
1341 block->nmb_filterdbs.nf_ethdb = block;
1342 block->nmb_deviceobj = fdo;
1343 block->nmb_physdeviceobj = pdo;
1344 block->nmb_nextdeviceobj = IoAttachDeviceToDeviceStack(fdo, pdo);
1345 KeInitializeSpinLock(&block->nmb_lock);
1346 KeInitializeSpinLock(&block->nmb_returnlock);
1347 KeInitializeEvent(&block->nmb_getevent, EVENT_TYPE_NOTIFY, TRUE);
1348 KeInitializeEvent(&block->nmb_setevent, EVENT_TYPE_NOTIFY, TRUE);
1349 KeInitializeEvent(&block->nmb_resetevent, EVENT_TYPE_NOTIFY, TRUE);
1350 InitializeListHead(&block->nmb_parmlist);
1351 InitializeListHead(&block->nmb_returnlist);
1352 block->nmb_returnitem = IoAllocateWorkItem(fdo);
1353
1354 /*
1355 * Stash pointers to the miniport block and miniport
1356 * characteristics info in the if_ndis softc so the
1357 * UNIX wrapper driver can get to them later.
1358 */
1359 sc->ndis_block = block;
1360 sc->ndis_chars = IoGetDriverObjectExtension(drv, (void *)1);
1361
1362 /*
1363 * If the driver has a MiniportTransferData() function,
1364 * we should allocate a private RX packet pool.
1365 */
1366
1367 if (sc->ndis_chars->nmc_transferdata_func != NULL) {
1368 NdisAllocatePacketPool(&status, &block->nmb_rxpool,
1369 32, PROTOCOL_RESERVED_SIZE_IN_PACKET);
1370 if (status != NDIS_STATUS_SUCCESS) {
1371 IoDetachDevice(block->nmb_nextdeviceobj);
1372 IoDeleteDevice(fdo);
1373 return (status);
1374 }
1375 InitializeListHead((&block->nmb_packetlist));
1376 }
1377
1378 /* Give interrupt handling priority over timers. */
1379 IoInitializeDpcRequest(fdo, kernndis_functbl[6].ipt_wrap);
1380 KeSetImportanceDpc(&fdo->do_dpc, KDPC_IMPORTANCE_HIGH);
1381
1382 /* Finish up BSD-specific setup. */
1383
1384 block->nmb_signature = (void *)0xcafebabe;
1385 block->nmb_status_func = kernndis_functbl[0].ipt_wrap;
1386 block->nmb_statusdone_func = kernndis_functbl[1].ipt_wrap;
1387 block->nmb_setdone_func = kernndis_functbl[2].ipt_wrap;
1388 block->nmb_querydone_func = kernndis_functbl[3].ipt_wrap;
1389 block->nmb_resetdone_func = kernndis_functbl[4].ipt_wrap;
1390 block->nmb_sendrsrc_func = kernndis_functbl[5].ipt_wrap;
1391 block->nmb_pendingreq = NULL;
1392
1393 TAILQ_INSERT_TAIL(&ndis_devhead, block, link);
1394
1395 return (STATUS_SUCCESS);
1396 }
1397
1398 int
1399 ndis_unload_driver(void *arg)
1400 {
1401 struct ndis_softc *sc;
1402 device_object *fdo;
1403
1404 sc = arg;
1405
1406 if (sc->ndis_intrhand)
1407 bus_teardown_intr(sc->ndis_dev,
1408 sc->ndis_irq, sc->ndis_intrhand);
1409
1410 if (sc->ndis_block->nmb_rlist != NULL)
1411 kfree(sc->ndis_block->nmb_rlist, M_DEVBUF);
1412
1413 ndis_flush_sysctls(sc);
1414
1415 TAILQ_REMOVE(&ndis_devhead, sc->ndis_block, link);
1416
1417 if (sc->ndis_chars->nmc_transferdata_func != NULL)
1418 NdisFreePacketPool(sc->ndis_block->nmb_rxpool);
1419 fdo = sc->ndis_block->nmb_deviceobj;
1420 IoFreeWorkItem(sc->ndis_block->nmb_returnitem);
1421 IoDetachDevice(sc->ndis_block->nmb_nextdeviceobj);
1422 IoDeleteDevice(fdo);
1423
1424 return (0);
1425 }
Cache object: fc3746a36947d5b075f2042234ecef75
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