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: head/sys/dev/if_ndis/if_ndis.c 123537 2003-12-14 22:47:01Z wpaul $");
35
36#include "opt_bdg.h"
37
38#include <sys/param.h>
39#include <sys/systm.h>
40#include <sys/sockio.h>
41#include <sys/mbuf.h>
42#include <sys/malloc.h>
43#include <sys/kernel.h>
44#include <sys/socket.h>
45#include <sys/queue.h>
46#include <sys/sysctl.h>
47
48#include <net/if.h>
49#include <net/if_arp.h>
50#include <net/ethernet.h>
51#include <net/if_dl.h>
52#include <net/if_media.h>
53
54#include <net/bpf.h>
55
56#include <vm/vm.h> /* for vtophys */
57#include <vm/pmap.h> /* for vtophys */
58#include <machine/bus_memio.h>
59#include <machine/bus_pio.h>
60#include <machine/bus.h>
61#include <machine/resource.h>
62#include <sys/bus.h>
63#include <sys/rman.h>
64
65#include <dev/pci/pcireg.h>
66#include <dev/pci/pcivar.h>
67
68#include <compat/ndis/pe_var.h>
69#include <compat/ndis/resource_var.h>
70#include <compat/ndis/ndis_var.h>
71#include <compat/ndis/cfg_var.h>
72#include <dev/if_ndis/if_ndisvar.h>
73
74#include "ndis_driver_data.h"
75
76MODULE_DEPEND(ndis, pci, 1, 1, 1);
77MODULE_DEPEND(ndis, ether, 1, 1, 1);
78MODULE_DEPEND(ndis, ndisapi, 1, 1, 1);
79
80/*
81 * Various supported device vendors/types and their names.
82 * These are defined in the ndis_driver_data.h file.
83 */
84static struct ndis_type ndis_devs[] = {
85#ifdef NDIS_DEV_TABLE
86 NDIS_DEV_TABLE
87#endif
88 { 0, 0, NULL }
89};
90
91#define __stdcall __attribute__((__stdcall__))
92
93static int ndis_probe (device_t);
94static int ndis_attach (device_t);
95static int ndis_detach (device_t);
96
97static __stdcall void ndis_txeof (ndis_handle,
98 ndis_packet *, ndis_status);
99static __stdcall void ndis_rxeof (ndis_handle,
100 ndis_packet **, uint32_t);
101static void ndis_intr (void *);
102static void ndis_tick (void *);
103static void ndis_start (struct ifnet *);
104static int ndis_ioctl (struct ifnet *, u_long, caddr_t);
105static void ndis_init (void *);
106static void ndis_stop (struct ndis_softc *);
107static void ndis_watchdog (struct ifnet *);
108static void ndis_shutdown (device_t);
109static int ndis_ifmedia_upd (struct ifnet *);
110static void ndis_ifmedia_sts (struct ifnet *, struct ifmediareq *);
111
112static void ndis_reset (struct ndis_softc *);
113static void ndis_setmulti (struct ndis_softc *);
114static void ndis_map_sclist (void *, bus_dma_segment_t *,
115 int, bus_size_t, int);
116
117#ifdef NDIS_USEIOSPACE
118#define NDIS_RES SYS_RES_IOPORT
119#define NDIS_RID NDIS_PCI_LOIO
120#else
121#define NDIS_RES SYS_RES_MEMORY
122#define NDIS_RID NDIS_PCI_LOMEM
123#endif
124
125static device_method_t ndis_methods[] = {
126 /* Device interface */
127 DEVMETHOD(device_probe, ndis_probe),
128 DEVMETHOD(device_attach, ndis_attach),
129 DEVMETHOD(device_detach, ndis_detach),
130 DEVMETHOD(device_shutdown, ndis_shutdown),
131
132 { 0, 0 }
133};
134
135static driver_t ndis_driver = {
136 "ndis",
137 ndis_methods,
138 sizeof(struct ndis_softc)
139};
140
141static devclass_t ndis_devclass;
142
143DRIVER_MODULE(ndis, pci, ndis_driver, ndis_devclass, 0, 0);
144
145/*
146 * Program the 64-bit multicast hash filter.
147 */
148static void
149ndis_setmulti(sc)
150 struct ndis_softc *sc;
151{
152#ifdef notyet
153 uint32_t ndis_filter;
154 int len;
155#endif
156 return;
157}
158
159static void
160ndis_reset(sc)
161 struct ndis_softc *sc;
162{
163 ndis_reset_nic(sc);
164 return;
165}
166
167/*
168 * Probe for an NDIS device. Check the PCI vendor and device
169 * IDs against our list and return a device name if we find a match.
170 */
171static int
172ndis_probe(dev)
173 device_t dev;
174{
175 struct ndis_type *t;
176
177 t = ndis_devs;
178
179 while(t->ndis_name != NULL) {
180 if ((pci_get_vendor(dev) == t->ndis_vid) &&
181 (pci_get_device(dev) == t->ndis_did)) {
182 device_set_desc(dev, t->ndis_name);
183 return(0);
184 }
185 t++;
186 }
187
188 return(ENXIO);
189}
190
191/*
192 * Attach the interface. Allocate softc structures, do ifmedia
193 * setup and ethernet/BPF attach.
194 */
195static int
196ndis_attach(dev)
197 device_t dev;
198{
199 u_char eaddr[ETHER_ADDR_LEN];
200 struct ndis_softc *sc;
201 struct ifnet *ifp;
202 int unit, error = 0, rid, len;
203 void *img;
204
205 sc = device_get_softc(dev);
206 unit = device_get_unit(dev);
207
208 mtx_init(&sc->ndis_mtx, device_get_nameunit(dev), MTX_NETWORK_LOCK,
209 MTX_DEF | MTX_RECURSE);
210
211 /*
212 * Map control/status registers.
213 */
214 pci_enable_busmaster(dev);
215
216 /* Try to map iospace */
217
218 sc->ndis_io_rid = NDIS_PCI_LOIO;
219 sc->ndis_res_io = bus_alloc_resource(dev, SYS_RES_IOPORT,
220 &sc->ndis_io_rid, 0, ~0, 1, RF_ACTIVE);
221
222 /*
223 * Sometimes the iospace and memspace BARs are swapped.
224 * Make one more try to map I/O space using a different
225 * RID.
226 */
227 if (sc->ndis_res_io == NULL) {
228 sc->ndis_io_rid = NDIS_PCI_LOMEM;
229 sc->ndis_res_io = bus_alloc_resource(dev, SYS_RES_IOPORT,
230 &sc->ndis_io_rid, 0, ~0, 1, RF_ACTIVE);
231 }
232
233 if (sc->ndis_res_io != NULL)
234 sc->ndis_rescnt++;
235
236 /* Now try to mem memory space */
237 sc->ndis_mem_rid = NDIS_PCI_LOMEM;
238 sc->ndis_res_mem = bus_alloc_resource(dev, SYS_RES_MEMORY,
239 &sc->ndis_mem_rid, 0, ~0, 1, RF_ACTIVE);
240
241 /*
242 * If the first attempt fails, try again with another
243 * BAR.
244 */
245 if (sc->ndis_res_mem == NULL) {
246 sc->ndis_mem_rid = NDIS_PCI_LOIO;
247 sc->ndis_res_mem = bus_alloc_resource(dev, SYS_RES_MEMORY,
248 &sc->ndis_mem_rid, 0, ~0, 1, RF_ACTIVE);
249 }
250
251 if (sc->ndis_res_mem != NULL)
252 sc->ndis_rescnt++;
253
254 if (!sc->ndis_rescnt) {
255 printf("ndis%d: couldn't map ports/memory\n", unit);
256 error = ENXIO;
257 goto fail;
258 }
259#ifdef notdef
260 sc->ndis_btag = rman_get_bustag(sc->ndis_res);
261 sc->ndis_bhandle = rman_get_bushandle(sc->ndis_res);
262#endif
263
264 /* Allocate interrupt */
265 rid = 0;
266 sc->ndis_irq = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, 0, ~0, 1,
267 RF_SHAREABLE | RF_ACTIVE);
268
269 if (sc->ndis_irq == NULL) {
270 printf("ndis%d: couldn't map interrupt\n", unit);
271 error = ENXIO;
272 goto fail;
273 }
274
275 sc->ndis_rescnt++;
276
277 /*
278 * Allocate the parent bus DMA tag appropriate for PCI.
279 */
280#define NDIS_NSEG_NEW 32
281 error = bus_dma_tag_create(NULL, /* parent */
282 1, 0, /* alignment, boundary */
283 BUS_SPACE_MAXADDR_32BIT,/* lowaddr */
284 BUS_SPACE_MAXADDR, /* highaddr */
285 NULL, NULL, /* filter, filterarg */
286 MAXBSIZE, NDIS_NSEG_NEW,/* maxsize, nsegments */
287 BUS_SPACE_MAXSIZE_32BIT,/* maxsegsize */
288 BUS_DMA_ALLOCNOW, /* flags */
289 NULL, NULL, /* lockfunc, lockarg */
290 &sc->ndis_parent_tag);
291
292 if (error)
293 goto fail;
294
295 img = drv_data;
296 sc->ndis_dev = dev;
297 sc->ndis_regvals = ndis_regvals;
298 sc->ndis_iftype = PCIBus;
299
300 sysctl_ctx_init(&sc->ndis_ctx);
301
302 /* Create sysctl registry nodes */
303 ndis_create_sysctls(sc);
304
305 /* Set up driver image in memory. */
306 ndis_load_driver((vm_offset_t)img, sc);
307
308 /* Do resource conversion. */
309 ndis_convert_res(sc);
310
311 /* Install our RX and TX interrupt handlers. */
312 sc->ndis_block.nmb_senddone_func = ndis_txeof;
313 sc->ndis_block.nmb_pktind_func = ndis_rxeof;
314
315 /* Call driver's init routine. */
316 if (ndis_init_nic(sc)) {
317 printf ("ndis%d: init handler failed\n", sc->ndis_unit);
318 error = ENXIO;
319 goto fail;
320 }
321
322 /* Reset the adapter. */
323 ndis_reset(sc);
324
325 /*
326 * Get station address from the driver.
327 */
328 len = sizeof(eaddr);
329 ndis_get_info(sc, OID_802_3_CURRENT_ADDRESS, &eaddr, &len);
330
331 /*
332 * An NDIS device was detected. Inform the world.
333 */
334 printf("ndis%d: Ethernet address: %6D\n", unit, eaddr, ":");
335
336 sc->ndis_unit = unit;
337 bcopy(eaddr, (char *)&sc->arpcom.ac_enaddr, ETHER_ADDR_LEN);
338
339 /*
340 * Figure out of we're allowed to use multipacket sends
341 * with this driver, and if so, how many.
342 */
343
344 if (sc->ndis_chars.nmc_sendsingle_func)
345 sc->ndis_maxpkts = 1;
346 else {
347 len = sizeof(sc->ndis_maxpkts);
348 ndis_get_info(sc, OID_GEN_MAXIMUM_SEND_PACKETS,
349 &sc->ndis_maxpkts, &len);
350 sc->ndis_txarray = malloc(sizeof(ndis_packet *) *
351 sc->ndis_maxpkts, M_DEVBUF, M_NOWAIT);
352 bzero((char *)sc->ndis_txarray, sizeof(ndis_packet *) *
353 sc->ndis_maxpkts);
354 }
355
356 sc->ndis_txpending = sc->ndis_maxpkts;
357
358 sc->ndis_oidcnt = 0;
359 /* Get supported oid list. */
360 ndis_get_supported_oids(sc, &sc->ndis_oids, &sc->ndis_oidcnt);
361
362 /* If the NDIS module requested scatter/gather, init maps. */
363 if (sc->ndis_sc)
364 ndis_init_dma(sc);
365
366 ifmedia_init(&sc->ifmedia, IFM_IMASK, ndis_ifmedia_upd,
367 ndis_ifmedia_sts);
368 ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_10_T, 0, NULL);
369 ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_10_T|IFM_FDX, 0, NULL);
370 ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_100_TX, 0, NULL);
371 ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_100_TX|IFM_FDX, 0, NULL);
372 ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_AUTO, 0, NULL);
373 ifmedia_set(&sc->ifmedia, IFM_ETHER|IFM_AUTO);
374
375 ifp = &sc->arpcom.ac_if;
376 ifp->if_softc = sc;
377 if_initname(ifp, device_get_name(dev), device_get_unit(dev));
378 ifp->if_mtu = ETHERMTU;
379 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
380 ifp->if_ioctl = ndis_ioctl;
381 ifp->if_output = ether_output;
382 ifp->if_start = ndis_start;
383 ifp->if_watchdog = ndis_watchdog;
384 ifp->if_init = ndis_init;
385 ifp->if_baudrate = 10000000;
386 ifp->if_snd.ifq_maxlen = 50;
387
388 /*
389 * Call MI attach routine.
390 */
391 ether_ifattach(ifp, eaddr);
392
393 /* Hook interrupt last to avoid having to lock softc */
394 error = bus_setup_intr(dev, sc->ndis_irq, INTR_TYPE_NET,
395 ndis_intr, sc, &sc->ndis_intrhand);
396
397 if (error) {
398 printf("ndis%d: couldn't set up irq\n", unit);
399 ether_ifdetach(ifp);
400 goto fail;
401 }
402
403fail:
404 if (error)
405 ndis_detach(dev);
406
407 return(error);
408}
409
410/*
411 * Shutdown hardware and free up resources. This can be called any
412 * time after the mutex has been initialized. It is called in both
413 * the error case in attach and the normal detach case so it needs
414 * to be careful about only freeing resources that have actually been
415 * allocated.
416 */
417static int
418ndis_detach(dev)
419 device_t dev;
420{
421 struct ndis_softc *sc;
422 struct ifnet *ifp;
423
424 sc = device_get_softc(dev);
425 KASSERT(mtx_initialized(&sc->ndis_mtx), ("ndis mutex not initialized"));
426 NDIS_LOCK(sc);
427 ifp = &sc->arpcom.ac_if;
428
429 if (device_is_attached(dev)) {
430 NDIS_UNLOCK(sc);
431 ndis_stop(sc);
432 ether_ifdetach(ifp);
433 NDIS_LOCK(sc);
434 }
435
436 bus_generic_detach(dev);
437
438 if (sc->ndis_intrhand)
439 bus_teardown_intr(dev, sc->ndis_irq, sc->ndis_intrhand);
440 if (sc->ndis_irq)
441 bus_release_resource(dev, SYS_RES_IRQ, 0, sc->ndis_irq);
442 if (sc->ndis_res_io)
443 bus_release_resource(dev, SYS_RES_IOPORT,
444 sc->ndis_io_rid, sc->ndis_res_io);
445 if (sc->ndis_res_mem)
446 bus_release_resource(dev, SYS_RES_MEMORY,
447 sc->ndis_mem_rid, sc->ndis_res_mem);
448
449 if (sc->ndis_sc)
450 ndis_destroy_dma(sc);
451
452 ndis_unload_driver((void *)ifp);
453
454 bus_dma_tag_destroy(sc->ndis_parent_tag);
455
456 sysctl_ctx_free(&sc->ndis_ctx);
457
458 NDIS_UNLOCK(sc);
459 mtx_destroy(&sc->ndis_mtx);
460
461 return(0);
462}
463
464/*
465 * A frame has been uploaded: pass the resulting mbuf chain up to
466 * the higher level protocols.
467 */
468__stdcall static void
469ndis_rxeof(adapter, packets, pktcnt)
470 ndis_handle adapter;
471 ndis_packet **packets;
472 uint32_t pktcnt;
473{
474 struct ndis_softc *sc;
475 ndis_miniport_block *block;
476 ndis_packet *p;
477 struct ifnet *ifp;
478 struct mbuf *m0;
479 int i;
480
481 block = (ndis_miniport_block *)adapter;
482 sc = (struct ndis_softc *)(block->nmb_ifp);
483 ifp = block->nmb_ifp;
484
485 for (i = 0; i < pktcnt; i++) {
486 p = packets[i];
487 /* Stash the softc here so ptom can use it. */
488 p->np_rsvd[0] = (uint32_t *)sc;
489 if (ndis_ptom(&m0, p)) {
490 printf ("ndis%d: ptom failed\n", sc->ndis_unit);
491 ndis_return_packet(sc, p);
492 } else {
493 m0->m_pkthdr.rcvif = ifp;
494 ifp->if_ipackets++;
495 (*ifp->if_input)(ifp, m0);
496 }
497 }
498
499 return;
500}
501
502/*
503 * A frame was downloaded to the chip. It's safe for us to clean up
504 * the list buffers.
505 */
506__stdcall static void
507ndis_txeof(adapter, packet, status)
508 ndis_handle adapter;
509 ndis_packet *packet;
510 ndis_status status;
511
512{
513 struct ndis_softc *sc;
514 ndis_miniport_block *block;
515 struct ifnet *ifp;
516 int idx;
517 struct mbuf *m;
518
519 block = (ndis_miniport_block *)adapter;
520 sc = (struct ndis_softc *)block->nmb_ifp;
521 ifp = block->nmb_ifp;
522
523 if (packet->np_rsvd[1] == NULL)
524 panic("NDIS driver corrupted reserved packet fields");
525
526 NDIS_LOCK(sc);
527
528 m = (struct mbuf *)packet->np_rsvd[1];
529 idx = (int)packet->np_rsvd[0];
530 ifp->if_opackets++;
531 m_freem(m);
532 if (sc->ndis_sc)
533 bus_dmamap_unload(sc->ndis_ttag, sc->ndis_tmaps[idx]);
534
535 ndis_free_packet(packet);
536 sc->ndis_txarray[idx] = NULL;
537 sc->ndis_txpending++;
538
539 ifp->if_timer = 0;
540 ifp->if_flags &= ~IFF_OACTIVE;
541
542 NDIS_UNLOCK(sc);
543
544 if (ifp->if_snd.ifq_head != NULL)
545 ndis_start(ifp);
546
547 return;
548}
549
550static void
551ndis_intr(arg)
552 void *arg;
553{
554 struct ndis_softc *sc;
555 struct ifnet *ifp;
556 int is_our_intr = 0;
557 int call_isr = 0;
558
559 sc = arg;
560 /*NDIS_LOCK(sc);*/
561 ifp = &sc->arpcom.ac_if;
562
563/*
564 if (!(ifp->if_flags & IFF_UP)) {
565 NDIS_UNLOCK(sc);
566 return;
567 }
568*/
569 ndis_isr(sc, &is_our_intr, &call_isr);
570
571 if (is_our_intr || call_isr)
572 ndis_intrhand(sc);
573
574 if (ifp->if_snd.ifq_head != NULL)
575 ndis_start(ifp);
576
577 /*NDIS_UNLOCK(sc);*/
578
579 return;
580}
581
582static void
583ndis_tick(xsc)
584 void *xsc;
585{
586 struct ndis_softc *sc;
587 __stdcall ndis_checkforhang_handler hangfunc;
588 uint8_t rval;
589
590 sc = xsc;
591 NDIS_LOCK(sc);
592
593 hangfunc = sc->ndis_chars.nmc_checkhang_func;
594
595 if (hangfunc != NULL) {
596 rval = hangfunc(sc->ndis_block.nmb_miniportadapterctx);
597 if (rval == TRUE)
598 ndis_reset_nic(sc);
599 }
600
601 sc->ndis_stat_ch = timeout(ndis_tick, sc, hz *
602 sc->ndis_block.nmb_checkforhangsecs);
603
604 NDIS_UNLOCK(sc);
605
606 return;
607}
608
609static void
610ndis_map_sclist(arg, segs, nseg, mapsize, error)
611 void *arg;
612 bus_dma_segment_t *segs;
613 int nseg;
614 bus_size_t mapsize;
615 int error;
616
617{
618 struct ndis_sc_list *sclist;
619 int i;
620
621 if (error || arg == NULL)
622 return;
623
624 sclist = arg;
625
626 sclist->nsl_frags = nseg;
627
628 for (i = 0; i < nseg; i++) {
629 sclist->nsl_elements[i].nse_addr.np_quad = segs[i].ds_addr;
630 sclist->nsl_elements[i].nse_len = segs[i].ds_len;
631 }
632
633 return;
634}
635
636/*
637 * Main transmit routine. To make NDIS drivers happy, we need to
638 * transform mbuf chains into NDIS packets and feed them to the
639 * send packet routines. Most drivers allow you to send several
640 * packets at once (up to the maxpkts limit). Unfortunately, rather
641 * that accepting them in the form of a linked list, they expect
642 * a contiguous array of pointers to packets.
643 *
644 * For those drivers which use the NDIS scatter/gather DMA mechanism,
645 * we need to perform busdma work here. Those that use map registers
646 * will do the mapping themselves on a buffer by buffer basis.
647 */
648
649static void
650ndis_start(ifp)
651 struct ifnet *ifp;
652{
653 struct ndis_softc *sc;
654 struct mbuf *m = NULL;
655 ndis_packet **p0 = NULL, *p = NULL;
656 int pcnt = 0;
657
658 sc = ifp->if_softc;
659
660 NDIS_LOCK(sc);
661
662 p0 = &sc->ndis_txarray[sc->ndis_txidx];
663
664 while(sc->ndis_txpending) {
665 IF_DEQUEUE(&ifp->if_snd, m);
666 if (m == NULL)
667 break;
668
669 sc->ndis_txarray[sc->ndis_txidx] = NULL;
670
671 if (ndis_mtop(m, &sc->ndis_txarray[sc->ndis_txidx])) {
672 NDIS_UNLOCK(sc);
673 IF_PREPEND(&ifp->if_snd, m);
674 return;
675 }
676
677 /*
678 * Save pointer to original mbuf
679 * so we can free it later.
680 */
681
682 (sc->ndis_txarray[sc->ndis_txidx])->np_rsvd[0] =
683 (uint32_t *)sc->ndis_txidx;
684 (sc->ndis_txarray[sc->ndis_txidx])->np_rsvd[1] = (uint32_t *)m;
685
686 /*
687 * Do scatter/gather processing, if driver requested it.
688 */
689 if (sc->ndis_sc) {
690 p = sc->ndis_txarray[sc->ndis_txidx];
691 bus_dmamap_load_mbuf(sc->ndis_ttag,
692 sc->ndis_tmaps[sc->ndis_txidx], m,
693 ndis_map_sclist, &p->np_sclist, BUS_DMA_NOWAIT);
694 bus_dmamap_sync(sc->ndis_ttag,
695 sc->ndis_tmaps[sc->ndis_txidx],
696 BUS_DMASYNC_PREREAD);
697 p->np_ext.npe_info[ndis_sclist_info] = &p->np_sclist;
698 }
699
700 NDIS_INC(sc);
701 sc->ndis_txpending--;
702
703 pcnt++;
704
705 /*
706 * If there's a BPF listener, bounce a copy of this frame
707 * to him.
708 */
709
710 BPF_MTAP(ifp, m);
711
712 /*
713 * The array that p0 points to must appear contiguous,
714 * so we must not wrap past the end of sc->ndis_txarray[].
715 * If it looks like we're about to wrap, break out here
716 * so the this batch of packets can be transmitted, then
717 * wait for txeof to ask us to send the rest.
718 */
719
720 if (sc->ndis_txidx == 0)
721 break;
722 }
723
724 if (sc->ndis_txpending == 0)
725 ifp->if_flags |= IFF_OACTIVE;
726
727 /*
728 * Set a timeout in case the chip goes out to lunch.
729 */
730 ifp->if_timer = 5;
731
732 NDIS_UNLOCK(sc);
733
734 ndis_send_packets(sc, p0, pcnt);
735
736 return;
737}
738
739static void
740ndis_init(xsc)
741 void *xsc;
742{
743 struct ndis_softc *sc = xsc;
744 struct ifnet *ifp = &sc->arpcom.ac_if;
745 int i, error;
746 uint32_t ndis_filter = 0;
747
748 /*NDIS_LOCK(sc);*/
749
750 /*
751 * Cancel pending I/O and free all RX/TX buffers.
752 */
753 ndis_reset(sc);
754 ndis_stop(sc);
755 ndis_init_nic(sc);
756
757 /* Init our MAC address */
758#ifdef notdef
759 /*
760 * Program the multicast filter, if necessary.
761 */
762 ndis_setmulti(sc);
763#endif
764
765 /* Program the packet filter */
766
767 ndis_filter = NDIS_PACKET_TYPE_DIRECTED;
768
769 if (ifp->if_flags & IFF_BROADCAST)
770 ndis_filter |= NDIS_PACKET_TYPE_BROADCAST;
771
772 if (ifp->if_flags & IFF_PROMISC)
773 ndis_filter |= NDIS_PACKET_TYPE_PROMISCUOUS;
774
775 if (ifp->if_flags & IFF_MULTICAST)
776 ndis_filter |= NDIS_PACKET_TYPE_MULTICAST;
777
778 i = sizeof(ndis_filter);
779
780 error = ndis_set_info(sc, OID_GEN_CURRENT_PACKET_FILTER,
781 &ndis_filter, &i);
782
783 if (error)
784 printf ("set filter failed: %d\n", error);
785
786 sc->ndis_txidx = 0;
787 sc->ndis_txpending = sc->ndis_maxpkts;
788
789 ifp->if_flags |= IFF_RUNNING;
790 ifp->if_flags &= ~IFF_OACTIVE;
791
792 if (sc->ndis_chars.nmc_checkhang_func != NULL)
793 sc->ndis_stat_ch = timeout(ndis_tick, sc,
794 hz * sc->ndis_block.nmb_checkforhangsecs);
795
796 /*NDIS_UNLOCK(sc);*/
797
798 return;
799}
800
801/*
802 * Set media options.
803 */
804static int
805ndis_ifmedia_upd(ifp)
806 struct ifnet *ifp;
807{
808 struct ndis_softc *sc;
809
810 sc = ifp->if_softc;
811
812 if (ifp->if_flags & IFF_UP)
813 ndis_init(sc);
814
815 return(0);
816}
817
818/*
819 * Report current media status.
820 */
821static void
822ndis_ifmedia_sts(ifp, ifmr)
823 struct ifnet *ifp;
824 struct ifmediareq *ifmr;
825{
826 struct ndis_softc *sc;
827 uint32_t media_info;
828 ndis_media_state linkstate;
829 int error, len;
830
831 sc = ifp->if_softc;
832
833 len = sizeof(linkstate);
834 error = ndis_get_info(sc, OID_GEN_MEDIA_CONNECT_STATUS,
835 (void *)&linkstate, &len);
836
837 len = sizeof(media_info);
838 error = ndis_get_info(sc, OID_GEN_LINK_SPEED,
839 (void *)&media_info, &len);
840
841 ifmr->ifm_status = IFM_AVALID;
842 ifmr->ifm_active = IFM_ETHER;
843
844 if (linkstate == nmc_connected)
845 ifmr->ifm_status |= IFM_ACTIVE;
846
847 switch(media_info) {
848 case 100000:
849 ifmr->ifm_active |= IFM_10_T;
850 break;
851 case 1000000:
852 ifmr->ifm_active |= IFM_100_TX;
853 break;
854 case 10000000:
855 ifmr->ifm_active |= IFM_1000_T;
856 break;
857 default:
858 printf("ndis%d: unknown speed: %d\n",
859 sc->ndis_unit, media_info);
860 break;
861 }
862
863 return;
864}
865
866static int
867ndis_ioctl(ifp, command, data)
868 struct ifnet *ifp;
869 u_long command;
870 caddr_t data;
871{
872 struct ndis_softc *sc = ifp->if_softc;
873 struct ifreq *ifr = (struct ifreq *) data;
874 int error = 0;
875
876 /*NDIS_LOCK(sc);*/
877
878 switch(command) {
879 case SIOCSIFFLAGS:
880 if (ifp->if_flags & IFF_UP) {
881 ndis_init(sc);
882 } else {
883 if (ifp->if_flags & IFF_RUNNING)
884 ndis_stop(sc);
885 }
886 error = 0;
887 break;
888 case SIOCADDMULTI:
889 case SIOCDELMULTI:
890 ndis_setmulti(sc);
891 error = 0;
892 break;
893 case SIOCGIFMEDIA:
894 case SIOCSIFMEDIA:
895 error = ifmedia_ioctl(ifp, ifr, &sc->ifmedia, command);
896 break;
897 default:
898 error = ether_ioctl(ifp, command, data);
899 break;
900 }
901
902 /*NDIS_UNLOCK(sc);*/
903
904 return(error);
905}
906
907static void
908ndis_watchdog(ifp)
909 struct ifnet *ifp;
910{
911 struct ndis_softc *sc;
912
913 sc = ifp->if_softc;
914
915 NDIS_LOCK(sc);
916 ifp->if_oerrors++;
917 printf("ndis%d: watchdog timeout\n", sc->ndis_unit);
918
919 ndis_reset(sc);
920
921 if (ifp->if_snd.ifq_head != NULL)
922 ndis_start(ifp);
923 NDIS_UNLOCK(sc);
924
925 return;
926}
927
928/*
929 * Stop the adapter and free any mbufs allocated to the
930 * RX and TX lists.
931 */
932static void
933ndis_stop(sc)
934 struct ndis_softc *sc;
935{
936 struct ifnet *ifp;
937
938/* NDIS_LOCK(sc);*/
939 ifp = &sc->arpcom.ac_if;
940 ifp->if_timer = 0;
941
942 untimeout(ndis_tick, sc, sc->ndis_stat_ch);
943
944 ndis_halt_nic(sc);
945
946 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE);
947 /*NDIS_UNLOCK(sc);*/
948
949 return;
950}
951
952/*
953 * Stop all chip I/O so that the kernel's probe routines don't
954 * get confused by errant DMAs when rebooting.
955 */
956static void
957ndis_shutdown(dev)
958 device_t dev;
959{
960 struct ndis_softc *sc;
961
962 sc = device_get_softc(dev);
963 ndis_shutdown_nic(sc);
964
965 return;
966}
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: head/sys/dev/if_ndis/if_ndis.c 123537 2003-12-14 22:47:01Z wpaul $");
35
36#include "opt_bdg.h"
37
38#include <sys/param.h>
39#include <sys/systm.h>
40#include <sys/sockio.h>
41#include <sys/mbuf.h>
42#include <sys/malloc.h>
43#include <sys/kernel.h>
44#include <sys/socket.h>
45#include <sys/queue.h>
46#include <sys/sysctl.h>
47
48#include <net/if.h>
49#include <net/if_arp.h>
50#include <net/ethernet.h>
51#include <net/if_dl.h>
52#include <net/if_media.h>
53
54#include <net/bpf.h>
55
56#include <vm/vm.h> /* for vtophys */
57#include <vm/pmap.h> /* for vtophys */
58#include <machine/bus_memio.h>
59#include <machine/bus_pio.h>
60#include <machine/bus.h>
61#include <machine/resource.h>
62#include <sys/bus.h>
63#include <sys/rman.h>
64
65#include <dev/pci/pcireg.h>
66#include <dev/pci/pcivar.h>
67
68#include <compat/ndis/pe_var.h>
69#include <compat/ndis/resource_var.h>
70#include <compat/ndis/ndis_var.h>
71#include <compat/ndis/cfg_var.h>
72#include <dev/if_ndis/if_ndisvar.h>
73
74#include "ndis_driver_data.h"
75
76MODULE_DEPEND(ndis, pci, 1, 1, 1);
77MODULE_DEPEND(ndis, ether, 1, 1, 1);
78MODULE_DEPEND(ndis, ndisapi, 1, 1, 1);
79
80/*
81 * Various supported device vendors/types and their names.
82 * These are defined in the ndis_driver_data.h file.
83 */
84static struct ndis_type ndis_devs[] = {
85#ifdef NDIS_DEV_TABLE
86 NDIS_DEV_TABLE
87#endif
88 { 0, 0, NULL }
89};
90
91#define __stdcall __attribute__((__stdcall__))
92
93static int ndis_probe (device_t);
94static int ndis_attach (device_t);
95static int ndis_detach (device_t);
96
97static __stdcall void ndis_txeof (ndis_handle,
98 ndis_packet *, ndis_status);
99static __stdcall void ndis_rxeof (ndis_handle,
100 ndis_packet **, uint32_t);
101static void ndis_intr (void *);
102static void ndis_tick (void *);
103static void ndis_start (struct ifnet *);
104static int ndis_ioctl (struct ifnet *, u_long, caddr_t);
105static void ndis_init (void *);
106static void ndis_stop (struct ndis_softc *);
107static void ndis_watchdog (struct ifnet *);
108static void ndis_shutdown (device_t);
109static int ndis_ifmedia_upd (struct ifnet *);
110static void ndis_ifmedia_sts (struct ifnet *, struct ifmediareq *);
111
112static void ndis_reset (struct ndis_softc *);
113static void ndis_setmulti (struct ndis_softc *);
114static void ndis_map_sclist (void *, bus_dma_segment_t *,
115 int, bus_size_t, int);
116
117#ifdef NDIS_USEIOSPACE
118#define NDIS_RES SYS_RES_IOPORT
119#define NDIS_RID NDIS_PCI_LOIO
120#else
121#define NDIS_RES SYS_RES_MEMORY
122#define NDIS_RID NDIS_PCI_LOMEM
123#endif
124
125static device_method_t ndis_methods[] = {
126 /* Device interface */
127 DEVMETHOD(device_probe, ndis_probe),
128 DEVMETHOD(device_attach, ndis_attach),
129 DEVMETHOD(device_detach, ndis_detach),
130 DEVMETHOD(device_shutdown, ndis_shutdown),
131
132 { 0, 0 }
133};
134
135static driver_t ndis_driver = {
136 "ndis",
137 ndis_methods,
138 sizeof(struct ndis_softc)
139};
140
141static devclass_t ndis_devclass;
142
143DRIVER_MODULE(ndis, pci, ndis_driver, ndis_devclass, 0, 0);
144
145/*
146 * Program the 64-bit multicast hash filter.
147 */
148static void
149ndis_setmulti(sc)
150 struct ndis_softc *sc;
151{
152#ifdef notyet
153 uint32_t ndis_filter;
154 int len;
155#endif
156 return;
157}
158
159static void
160ndis_reset(sc)
161 struct ndis_softc *sc;
162{
163 ndis_reset_nic(sc);
164 return;
165}
166
167/*
168 * Probe for an NDIS device. Check the PCI vendor and device
169 * IDs against our list and return a device name if we find a match.
170 */
171static int
172ndis_probe(dev)
173 device_t dev;
174{
175 struct ndis_type *t;
176
177 t = ndis_devs;
178
179 while(t->ndis_name != NULL) {
180 if ((pci_get_vendor(dev) == t->ndis_vid) &&
181 (pci_get_device(dev) == t->ndis_did)) {
182 device_set_desc(dev, t->ndis_name);
183 return(0);
184 }
185 t++;
186 }
187
188 return(ENXIO);
189}
190
191/*
192 * Attach the interface. Allocate softc structures, do ifmedia
193 * setup and ethernet/BPF attach.
194 */
195static int
196ndis_attach(dev)
197 device_t dev;
198{
199 u_char eaddr[ETHER_ADDR_LEN];
200 struct ndis_softc *sc;
201 struct ifnet *ifp;
202 int unit, error = 0, rid, len;
203 void *img;
204
205 sc = device_get_softc(dev);
206 unit = device_get_unit(dev);
207
208 mtx_init(&sc->ndis_mtx, device_get_nameunit(dev), MTX_NETWORK_LOCK,
209 MTX_DEF | MTX_RECURSE);
210
211 /*
212 * Map control/status registers.
213 */
214 pci_enable_busmaster(dev);
215
216 /* Try to map iospace */
217
218 sc->ndis_io_rid = NDIS_PCI_LOIO;
219 sc->ndis_res_io = bus_alloc_resource(dev, SYS_RES_IOPORT,
220 &sc->ndis_io_rid, 0, ~0, 1, RF_ACTIVE);
221
222 /*
223 * Sometimes the iospace and memspace BARs are swapped.
224 * Make one more try to map I/O space using a different
225 * RID.
226 */
227 if (sc->ndis_res_io == NULL) {
228 sc->ndis_io_rid = NDIS_PCI_LOMEM;
229 sc->ndis_res_io = bus_alloc_resource(dev, SYS_RES_IOPORT,
230 &sc->ndis_io_rid, 0, ~0, 1, RF_ACTIVE);
231 }
232
233 if (sc->ndis_res_io != NULL)
234 sc->ndis_rescnt++;
235
236 /* Now try to mem memory space */
237 sc->ndis_mem_rid = NDIS_PCI_LOMEM;
238 sc->ndis_res_mem = bus_alloc_resource(dev, SYS_RES_MEMORY,
239 &sc->ndis_mem_rid, 0, ~0, 1, RF_ACTIVE);
240
241 /*
242 * If the first attempt fails, try again with another
243 * BAR.
244 */
245 if (sc->ndis_res_mem == NULL) {
246 sc->ndis_mem_rid = NDIS_PCI_LOIO;
247 sc->ndis_res_mem = bus_alloc_resource(dev, SYS_RES_MEMORY,
248 &sc->ndis_mem_rid, 0, ~0, 1, RF_ACTIVE);
249 }
250
251 if (sc->ndis_res_mem != NULL)
252 sc->ndis_rescnt++;
253
254 if (!sc->ndis_rescnt) {
255 printf("ndis%d: couldn't map ports/memory\n", unit);
256 error = ENXIO;
257 goto fail;
258 }
259#ifdef notdef
260 sc->ndis_btag = rman_get_bustag(sc->ndis_res);
261 sc->ndis_bhandle = rman_get_bushandle(sc->ndis_res);
262#endif
263
264 /* Allocate interrupt */
265 rid = 0;
266 sc->ndis_irq = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, 0, ~0, 1,
267 RF_SHAREABLE | RF_ACTIVE);
268
269 if (sc->ndis_irq == NULL) {
270 printf("ndis%d: couldn't map interrupt\n", unit);
271 error = ENXIO;
272 goto fail;
273 }
274
275 sc->ndis_rescnt++;
276
277 /*
278 * Allocate the parent bus DMA tag appropriate for PCI.
279 */
280#define NDIS_NSEG_NEW 32
281 error = bus_dma_tag_create(NULL, /* parent */
282 1, 0, /* alignment, boundary */
283 BUS_SPACE_MAXADDR_32BIT,/* lowaddr */
284 BUS_SPACE_MAXADDR, /* highaddr */
285 NULL, NULL, /* filter, filterarg */
286 MAXBSIZE, NDIS_NSEG_NEW,/* maxsize, nsegments */
287 BUS_SPACE_MAXSIZE_32BIT,/* maxsegsize */
288 BUS_DMA_ALLOCNOW, /* flags */
289 NULL, NULL, /* lockfunc, lockarg */
290 &sc->ndis_parent_tag);
291
292 if (error)
293 goto fail;
294
295 img = drv_data;
296 sc->ndis_dev = dev;
297 sc->ndis_regvals = ndis_regvals;
298 sc->ndis_iftype = PCIBus;
299
300 sysctl_ctx_init(&sc->ndis_ctx);
301
302 /* Create sysctl registry nodes */
303 ndis_create_sysctls(sc);
304
305 /* Set up driver image in memory. */
306 ndis_load_driver((vm_offset_t)img, sc);
307
308 /* Do resource conversion. */
309 ndis_convert_res(sc);
310
311 /* Install our RX and TX interrupt handlers. */
312 sc->ndis_block.nmb_senddone_func = ndis_txeof;
313 sc->ndis_block.nmb_pktind_func = ndis_rxeof;
314
315 /* Call driver's init routine. */
316 if (ndis_init_nic(sc)) {
317 printf ("ndis%d: init handler failed\n", sc->ndis_unit);
318 error = ENXIO;
319 goto fail;
320 }
321
322 /* Reset the adapter. */
323 ndis_reset(sc);
324
325 /*
326 * Get station address from the driver.
327 */
328 len = sizeof(eaddr);
329 ndis_get_info(sc, OID_802_3_CURRENT_ADDRESS, &eaddr, &len);
330
331 /*
332 * An NDIS device was detected. Inform the world.
333 */
334 printf("ndis%d: Ethernet address: %6D\n", unit, eaddr, ":");
335
336 sc->ndis_unit = unit;
337 bcopy(eaddr, (char *)&sc->arpcom.ac_enaddr, ETHER_ADDR_LEN);
338
339 /*
340 * Figure out of we're allowed to use multipacket sends
341 * with this driver, and if so, how many.
342 */
343
344 if (sc->ndis_chars.nmc_sendsingle_func)
345 sc->ndis_maxpkts = 1;
346 else {
347 len = sizeof(sc->ndis_maxpkts);
348 ndis_get_info(sc, OID_GEN_MAXIMUM_SEND_PACKETS,
349 &sc->ndis_maxpkts, &len);
350 sc->ndis_txarray = malloc(sizeof(ndis_packet *) *
351 sc->ndis_maxpkts, M_DEVBUF, M_NOWAIT);
352 bzero((char *)sc->ndis_txarray, sizeof(ndis_packet *) *
353 sc->ndis_maxpkts);
354 }
355
356 sc->ndis_txpending = sc->ndis_maxpkts;
357
358 sc->ndis_oidcnt = 0;
359 /* Get supported oid list. */
360 ndis_get_supported_oids(sc, &sc->ndis_oids, &sc->ndis_oidcnt);
361
362 /* If the NDIS module requested scatter/gather, init maps. */
363 if (sc->ndis_sc)
364 ndis_init_dma(sc);
365
366 ifmedia_init(&sc->ifmedia, IFM_IMASK, ndis_ifmedia_upd,
367 ndis_ifmedia_sts);
368 ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_10_T, 0, NULL);
369 ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_10_T|IFM_FDX, 0, NULL);
370 ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_100_TX, 0, NULL);
371 ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_100_TX|IFM_FDX, 0, NULL);
372 ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_AUTO, 0, NULL);
373 ifmedia_set(&sc->ifmedia, IFM_ETHER|IFM_AUTO);
374
375 ifp = &sc->arpcom.ac_if;
376 ifp->if_softc = sc;
377 if_initname(ifp, device_get_name(dev), device_get_unit(dev));
378 ifp->if_mtu = ETHERMTU;
379 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
380 ifp->if_ioctl = ndis_ioctl;
381 ifp->if_output = ether_output;
382 ifp->if_start = ndis_start;
383 ifp->if_watchdog = ndis_watchdog;
384 ifp->if_init = ndis_init;
385 ifp->if_baudrate = 10000000;
386 ifp->if_snd.ifq_maxlen = 50;
387
388 /*
389 * Call MI attach routine.
390 */
391 ether_ifattach(ifp, eaddr);
392
393 /* Hook interrupt last to avoid having to lock softc */
394 error = bus_setup_intr(dev, sc->ndis_irq, INTR_TYPE_NET,
395 ndis_intr, sc, &sc->ndis_intrhand);
396
397 if (error) {
398 printf("ndis%d: couldn't set up irq\n", unit);
399 ether_ifdetach(ifp);
400 goto fail;
401 }
402
403fail:
404 if (error)
405 ndis_detach(dev);
406
407 return(error);
408}
409
410/*
411 * Shutdown hardware and free up resources. This can be called any
412 * time after the mutex has been initialized. It is called in both
413 * the error case in attach and the normal detach case so it needs
414 * to be careful about only freeing resources that have actually been
415 * allocated.
416 */
417static int
418ndis_detach(dev)
419 device_t dev;
420{
421 struct ndis_softc *sc;
422 struct ifnet *ifp;
423
424 sc = device_get_softc(dev);
425 KASSERT(mtx_initialized(&sc->ndis_mtx), ("ndis mutex not initialized"));
426 NDIS_LOCK(sc);
427 ifp = &sc->arpcom.ac_if;
428
429 if (device_is_attached(dev)) {
430 NDIS_UNLOCK(sc);
431 ndis_stop(sc);
432 ether_ifdetach(ifp);
433 NDIS_LOCK(sc);
434 }
435
436 bus_generic_detach(dev);
437
438 if (sc->ndis_intrhand)
439 bus_teardown_intr(dev, sc->ndis_irq, sc->ndis_intrhand);
440 if (sc->ndis_irq)
441 bus_release_resource(dev, SYS_RES_IRQ, 0, sc->ndis_irq);
442 if (sc->ndis_res_io)
443 bus_release_resource(dev, SYS_RES_IOPORT,
444 sc->ndis_io_rid, sc->ndis_res_io);
445 if (sc->ndis_res_mem)
446 bus_release_resource(dev, SYS_RES_MEMORY,
447 sc->ndis_mem_rid, sc->ndis_res_mem);
448
449 if (sc->ndis_sc)
450 ndis_destroy_dma(sc);
451
452 ndis_unload_driver((void *)ifp);
453
454 bus_dma_tag_destroy(sc->ndis_parent_tag);
455
456 sysctl_ctx_free(&sc->ndis_ctx);
457
458 NDIS_UNLOCK(sc);
459 mtx_destroy(&sc->ndis_mtx);
460
461 return(0);
462}
463
464/*
465 * A frame has been uploaded: pass the resulting mbuf chain up to
466 * the higher level protocols.
467 */
468__stdcall static void
469ndis_rxeof(adapter, packets, pktcnt)
470 ndis_handle adapter;
471 ndis_packet **packets;
472 uint32_t pktcnt;
473{
474 struct ndis_softc *sc;
475 ndis_miniport_block *block;
476 ndis_packet *p;
477 struct ifnet *ifp;
478 struct mbuf *m0;
479 int i;
480
481 block = (ndis_miniport_block *)adapter;
482 sc = (struct ndis_softc *)(block->nmb_ifp);
483 ifp = block->nmb_ifp;
484
485 for (i = 0; i < pktcnt; i++) {
486 p = packets[i];
487 /* Stash the softc here so ptom can use it. */
488 p->np_rsvd[0] = (uint32_t *)sc;
489 if (ndis_ptom(&m0, p)) {
490 printf ("ndis%d: ptom failed\n", sc->ndis_unit);
491 ndis_return_packet(sc, p);
492 } else {
493 m0->m_pkthdr.rcvif = ifp;
494 ifp->if_ipackets++;
495 (*ifp->if_input)(ifp, m0);
496 }
497 }
498
499 return;
500}
501
502/*
503 * A frame was downloaded to the chip. It's safe for us to clean up
504 * the list buffers.
505 */
506__stdcall static void
507ndis_txeof(adapter, packet, status)
508 ndis_handle adapter;
509 ndis_packet *packet;
510 ndis_status status;
511
512{
513 struct ndis_softc *sc;
514 ndis_miniport_block *block;
515 struct ifnet *ifp;
516 int idx;
517 struct mbuf *m;
518
519 block = (ndis_miniport_block *)adapter;
520 sc = (struct ndis_softc *)block->nmb_ifp;
521 ifp = block->nmb_ifp;
522
523 if (packet->np_rsvd[1] == NULL)
524 panic("NDIS driver corrupted reserved packet fields");
525
526 NDIS_LOCK(sc);
527
528 m = (struct mbuf *)packet->np_rsvd[1];
529 idx = (int)packet->np_rsvd[0];
530 ifp->if_opackets++;
531 m_freem(m);
532 if (sc->ndis_sc)
533 bus_dmamap_unload(sc->ndis_ttag, sc->ndis_tmaps[idx]);
534
535 ndis_free_packet(packet);
536 sc->ndis_txarray[idx] = NULL;
537 sc->ndis_txpending++;
538
539 ifp->if_timer = 0;
540 ifp->if_flags &= ~IFF_OACTIVE;
541
542 NDIS_UNLOCK(sc);
543
544 if (ifp->if_snd.ifq_head != NULL)
545 ndis_start(ifp);
546
547 return;
548}
549
550static void
551ndis_intr(arg)
552 void *arg;
553{
554 struct ndis_softc *sc;
555 struct ifnet *ifp;
556 int is_our_intr = 0;
557 int call_isr = 0;
558
559 sc = arg;
560 /*NDIS_LOCK(sc);*/
561 ifp = &sc->arpcom.ac_if;
562
563/*
564 if (!(ifp->if_flags & IFF_UP)) {
565 NDIS_UNLOCK(sc);
566 return;
567 }
568*/
569 ndis_isr(sc, &is_our_intr, &call_isr);
570
571 if (is_our_intr || call_isr)
572 ndis_intrhand(sc);
573
574 if (ifp->if_snd.ifq_head != NULL)
575 ndis_start(ifp);
576
577 /*NDIS_UNLOCK(sc);*/
578
579 return;
580}
581
582static void
583ndis_tick(xsc)
584 void *xsc;
585{
586 struct ndis_softc *sc;
587 __stdcall ndis_checkforhang_handler hangfunc;
588 uint8_t rval;
589
590 sc = xsc;
591 NDIS_LOCK(sc);
592
593 hangfunc = sc->ndis_chars.nmc_checkhang_func;
594
595 if (hangfunc != NULL) {
596 rval = hangfunc(sc->ndis_block.nmb_miniportadapterctx);
597 if (rval == TRUE)
598 ndis_reset_nic(sc);
599 }
600
601 sc->ndis_stat_ch = timeout(ndis_tick, sc, hz *
602 sc->ndis_block.nmb_checkforhangsecs);
603
604 NDIS_UNLOCK(sc);
605
606 return;
607}
608
609static void
610ndis_map_sclist(arg, segs, nseg, mapsize, error)
611 void *arg;
612 bus_dma_segment_t *segs;
613 int nseg;
614 bus_size_t mapsize;
615 int error;
616
617{
618 struct ndis_sc_list *sclist;
619 int i;
620
621 if (error || arg == NULL)
622 return;
623
624 sclist = arg;
625
626 sclist->nsl_frags = nseg;
627
628 for (i = 0; i < nseg; i++) {
629 sclist->nsl_elements[i].nse_addr.np_quad = segs[i].ds_addr;
630 sclist->nsl_elements[i].nse_len = segs[i].ds_len;
631 }
632
633 return;
634}
635
636/*
637 * Main transmit routine. To make NDIS drivers happy, we need to
638 * transform mbuf chains into NDIS packets and feed them to the
639 * send packet routines. Most drivers allow you to send several
640 * packets at once (up to the maxpkts limit). Unfortunately, rather
641 * that accepting them in the form of a linked list, they expect
642 * a contiguous array of pointers to packets.
643 *
644 * For those drivers which use the NDIS scatter/gather DMA mechanism,
645 * we need to perform busdma work here. Those that use map registers
646 * will do the mapping themselves on a buffer by buffer basis.
647 */
648
649static void
650ndis_start(ifp)
651 struct ifnet *ifp;
652{
653 struct ndis_softc *sc;
654 struct mbuf *m = NULL;
655 ndis_packet **p0 = NULL, *p = NULL;
656 int pcnt = 0;
657
658 sc = ifp->if_softc;
659
660 NDIS_LOCK(sc);
661
662 p0 = &sc->ndis_txarray[sc->ndis_txidx];
663
664 while(sc->ndis_txpending) {
665 IF_DEQUEUE(&ifp->if_snd, m);
666 if (m == NULL)
667 break;
668
669 sc->ndis_txarray[sc->ndis_txidx] = NULL;
670
671 if (ndis_mtop(m, &sc->ndis_txarray[sc->ndis_txidx])) {
672 NDIS_UNLOCK(sc);
673 IF_PREPEND(&ifp->if_snd, m);
674 return;
675 }
676
677 /*
678 * Save pointer to original mbuf
679 * so we can free it later.
680 */
681
682 (sc->ndis_txarray[sc->ndis_txidx])->np_rsvd[0] =
683 (uint32_t *)sc->ndis_txidx;
684 (sc->ndis_txarray[sc->ndis_txidx])->np_rsvd[1] = (uint32_t *)m;
685
686 /*
687 * Do scatter/gather processing, if driver requested it.
688 */
689 if (sc->ndis_sc) {
690 p = sc->ndis_txarray[sc->ndis_txidx];
691 bus_dmamap_load_mbuf(sc->ndis_ttag,
692 sc->ndis_tmaps[sc->ndis_txidx], m,
693 ndis_map_sclist, &p->np_sclist, BUS_DMA_NOWAIT);
694 bus_dmamap_sync(sc->ndis_ttag,
695 sc->ndis_tmaps[sc->ndis_txidx],
696 BUS_DMASYNC_PREREAD);
697 p->np_ext.npe_info[ndis_sclist_info] = &p->np_sclist;
698 }
699
700 NDIS_INC(sc);
701 sc->ndis_txpending--;
702
703 pcnt++;
704
705 /*
706 * If there's a BPF listener, bounce a copy of this frame
707 * to him.
708 */
709
710 BPF_MTAP(ifp, m);
711
712 /*
713 * The array that p0 points to must appear contiguous,
714 * so we must not wrap past the end of sc->ndis_txarray[].
715 * If it looks like we're about to wrap, break out here
716 * so the this batch of packets can be transmitted, then
717 * wait for txeof to ask us to send the rest.
718 */
719
720 if (sc->ndis_txidx == 0)
721 break;
722 }
723
724 if (sc->ndis_txpending == 0)
725 ifp->if_flags |= IFF_OACTIVE;
726
727 /*
728 * Set a timeout in case the chip goes out to lunch.
729 */
730 ifp->if_timer = 5;
731
732 NDIS_UNLOCK(sc);
733
734 ndis_send_packets(sc, p0, pcnt);
735
736 return;
737}
738
739static void
740ndis_init(xsc)
741 void *xsc;
742{
743 struct ndis_softc *sc = xsc;
744 struct ifnet *ifp = &sc->arpcom.ac_if;
745 int i, error;
746 uint32_t ndis_filter = 0;
747
748 /*NDIS_LOCK(sc);*/
749
750 /*
751 * Cancel pending I/O and free all RX/TX buffers.
752 */
753 ndis_reset(sc);
754 ndis_stop(sc);
755 ndis_init_nic(sc);
756
757 /* Init our MAC address */
758#ifdef notdef
759 /*
760 * Program the multicast filter, if necessary.
761 */
762 ndis_setmulti(sc);
763#endif
764
765 /* Program the packet filter */
766
767 ndis_filter = NDIS_PACKET_TYPE_DIRECTED;
768
769 if (ifp->if_flags & IFF_BROADCAST)
770 ndis_filter |= NDIS_PACKET_TYPE_BROADCAST;
771
772 if (ifp->if_flags & IFF_PROMISC)
773 ndis_filter |= NDIS_PACKET_TYPE_PROMISCUOUS;
774
775 if (ifp->if_flags & IFF_MULTICAST)
776 ndis_filter |= NDIS_PACKET_TYPE_MULTICAST;
777
778 i = sizeof(ndis_filter);
779
780 error = ndis_set_info(sc, OID_GEN_CURRENT_PACKET_FILTER,
781 &ndis_filter, &i);
782
783 if (error)
784 printf ("set filter failed: %d\n", error);
785
786 sc->ndis_txidx = 0;
787 sc->ndis_txpending = sc->ndis_maxpkts;
788
789 ifp->if_flags |= IFF_RUNNING;
790 ifp->if_flags &= ~IFF_OACTIVE;
791
792 if (sc->ndis_chars.nmc_checkhang_func != NULL)
793 sc->ndis_stat_ch = timeout(ndis_tick, sc,
794 hz * sc->ndis_block.nmb_checkforhangsecs);
795
796 /*NDIS_UNLOCK(sc);*/
797
798 return;
799}
800
801/*
802 * Set media options.
803 */
804static int
805ndis_ifmedia_upd(ifp)
806 struct ifnet *ifp;
807{
808 struct ndis_softc *sc;
809
810 sc = ifp->if_softc;
811
812 if (ifp->if_flags & IFF_UP)
813 ndis_init(sc);
814
815 return(0);
816}
817
818/*
819 * Report current media status.
820 */
821static void
822ndis_ifmedia_sts(ifp, ifmr)
823 struct ifnet *ifp;
824 struct ifmediareq *ifmr;
825{
826 struct ndis_softc *sc;
827 uint32_t media_info;
828 ndis_media_state linkstate;
829 int error, len;
830
831 sc = ifp->if_softc;
832
833 len = sizeof(linkstate);
834 error = ndis_get_info(sc, OID_GEN_MEDIA_CONNECT_STATUS,
835 (void *)&linkstate, &len);
836
837 len = sizeof(media_info);
838 error = ndis_get_info(sc, OID_GEN_LINK_SPEED,
839 (void *)&media_info, &len);
840
841 ifmr->ifm_status = IFM_AVALID;
842 ifmr->ifm_active = IFM_ETHER;
843
844 if (linkstate == nmc_connected)
845 ifmr->ifm_status |= IFM_ACTIVE;
846
847 switch(media_info) {
848 case 100000:
849 ifmr->ifm_active |= IFM_10_T;
850 break;
851 case 1000000:
852 ifmr->ifm_active |= IFM_100_TX;
853 break;
854 case 10000000:
855 ifmr->ifm_active |= IFM_1000_T;
856 break;
857 default:
858 printf("ndis%d: unknown speed: %d\n",
859 sc->ndis_unit, media_info);
860 break;
861 }
862
863 return;
864}
865
866static int
867ndis_ioctl(ifp, command, data)
868 struct ifnet *ifp;
869 u_long command;
870 caddr_t data;
871{
872 struct ndis_softc *sc = ifp->if_softc;
873 struct ifreq *ifr = (struct ifreq *) data;
874 int error = 0;
875
876 /*NDIS_LOCK(sc);*/
877
878 switch(command) {
879 case SIOCSIFFLAGS:
880 if (ifp->if_flags & IFF_UP) {
881 ndis_init(sc);
882 } else {
883 if (ifp->if_flags & IFF_RUNNING)
884 ndis_stop(sc);
885 }
886 error = 0;
887 break;
888 case SIOCADDMULTI:
889 case SIOCDELMULTI:
890 ndis_setmulti(sc);
891 error = 0;
892 break;
893 case SIOCGIFMEDIA:
894 case SIOCSIFMEDIA:
895 error = ifmedia_ioctl(ifp, ifr, &sc->ifmedia, command);
896 break;
897 default:
898 error = ether_ioctl(ifp, command, data);
899 break;
900 }
901
902 /*NDIS_UNLOCK(sc);*/
903
904 return(error);
905}
906
907static void
908ndis_watchdog(ifp)
909 struct ifnet *ifp;
910{
911 struct ndis_softc *sc;
912
913 sc = ifp->if_softc;
914
915 NDIS_LOCK(sc);
916 ifp->if_oerrors++;
917 printf("ndis%d: watchdog timeout\n", sc->ndis_unit);
918
919 ndis_reset(sc);
920
921 if (ifp->if_snd.ifq_head != NULL)
922 ndis_start(ifp);
923 NDIS_UNLOCK(sc);
924
925 return;
926}
927
928/*
929 * Stop the adapter and free any mbufs allocated to the
930 * RX and TX lists.
931 */
932static void
933ndis_stop(sc)
934 struct ndis_softc *sc;
935{
936 struct ifnet *ifp;
937
938/* NDIS_LOCK(sc);*/
939 ifp = &sc->arpcom.ac_if;
940 ifp->if_timer = 0;
941
942 untimeout(ndis_tick, sc, sc->ndis_stat_ch);
943
944 ndis_halt_nic(sc);
945
946 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE);
947 /*NDIS_UNLOCK(sc);*/
948
949 return;
950}
951
952/*
953 * Stop all chip I/O so that the kernel's probe routines don't
954 * get confused by errant DMAs when rebooting.
955 */
956static void
957ndis_shutdown(dev)
958 device_t dev;
959{
960 struct ndis_softc *sc;
961
962 sc = device_get_softc(dev);
963 ndis_shutdown_nic(sc);
964
965 return;
966}