1 /* $NetBSD: pdq_ifsubr.c,v 1.38 2001/12/21 23:21:47 matt Exp $ */
4 * Copyright (c) 1995, 1996 Matt Thomas <matt@3am-software.com>
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. The name of the author may not be used to endorse or promote products
13 * derived from this software without specific prior written permission
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 * $NetBSD: pdq_ifsubr.c,v 1.12 1997/06/05 01:56:35 thomas Exp$
29 #include <sys/cdefs.h>
30 __FBSDID("$FreeBSD$");
33 * DEC PDQ FDDI Controller; code for BSD derived operating systems
35 * This module provide bus independent BSD specific O/S functions.
36 * (ie. it provides an ifnet interface to the rest of the system)
42 #include <sys/param.h>
43 #include <sys/systm.h>
44 #include <sys/kernel.h>
46 #include <sys/mutex.h>
47 #include <sys/malloc.h>
48 #include <sys/socket.h>
49 #include <sys/sockio.h>
51 #include <sys/module.h>
54 #include <machine/bus.h>
55 #include <machine/resource.h>
59 #include <net/if_var.h>
60 #include <net/if_arp.h>
61 #include <net/if_dl.h>
62 #include <net/if_media.h>
63 #include <net/if_types.h>
68 #include <dev/pdq/pdq_freebsd.h>
69 #include <dev/pdq/pdqreg.h>
71 devclass_t pdq_devclass;
73 static void pdq_watchdog(void *);
76 pdq_ifstop(pdq_softc_t *sc)
79 PDQ_IFNET(sc)->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE);
80 sc->sc_pdq->pdq_flags &= ~PDQ_RUNNING;
82 callout_stop(&sc->watchdog);
86 pdq_ifinit_locked(pdq_softc_t *sc)
90 if (PDQ_IFNET(sc)->if_flags & IFF_UP) {
91 PDQ_IFNET(sc)->if_drv_flags |= IFF_DRV_RUNNING;
92 if (PDQ_IFNET(sc)->if_flags & IFF_PROMISC) {
93 sc->sc_pdq->pdq_flags |= PDQ_PROMISC;
95 sc->sc_pdq->pdq_flags &= ~PDQ_PROMISC;
97 if (PDQ_IFNET(sc)->if_flags & IFF_LINK1) {
98 sc->sc_pdq->pdq_flags |= PDQ_PASS_SMT;
100 sc->sc_pdq->pdq_flags &= ~PDQ_PASS_SMT;
102 sc->sc_pdq->pdq_flags |= PDQ_RUNNING;
104 callout_reset(&sc->watchdog, hz, pdq_watchdog, sc);
110 pdq_ifinit(void *arg)
116 pdq_ifinit_locked(sc);
121 pdq_watchdog(void *arg)
128 callout_reset(&sc->watchdog, hz, pdq_watchdog, sc);
129 if (sc->timer == 0 || --sc->timer > 0)
133 * No progress was made on the transmit queue for PDQ_OS_TX_TRANSMIT
134 * seconds. Remove all queued packets.
137 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
140 IFQ_DEQUEUE(&ifp->if_snd, m);
143 PDQ_OS_DATABUF_FREE(PDQ_OS_IFP_TO_SOFTC(ifp)->sc_pdq, m);
148 pdq_ifstart_locked(struct ifnet *ifp)
150 pdq_softc_t * const sc = PDQ_OS_IFP_TO_SOFTC(ifp);
155 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0)
159 sc->timer = PDQ_OS_TX_TIMEOUT;
161 if ((sc->sc_pdq->pdq_flags & PDQ_TXOK) == 0) {
162 PDQ_IFNET(sc)->if_drv_flags |= IFF_DRV_OACTIVE;
165 sc->sc_flags |= PDQIF_DOWNCALL;
167 IF_DEQUEUE(&ifp->if_snd, m);
170 #if defined(PDQ_BUS_DMA) && !defined(PDQ_BUS_DMA_NOTX)
171 if ((m->m_flags & M_HASTXDMAMAP) == 0) {
173 if (PDQ_OS_HDR_OFFSET != PDQ_RX_FC_OFFSET) {
174 m->m_data[0] = PDQ_FDDI_PH0;
175 m->m_data[1] = PDQ_FDDI_PH1;
176 m->m_data[2] = PDQ_FDDI_PH2;
178 if (!bus_dmamap_create(sc->sc_dmatag, m->m_pkthdr.len, 255,
179 m->m_pkthdr.len, 0, BUS_DMA_NOWAIT, &map)) {
180 if (!bus_dmamap_load_mbuf(sc->sc_dmatag, map, m,
181 BUS_DMA_WRITE|BUS_DMA_NOWAIT)) {
182 bus_dmamap_sync(sc->sc_dmatag, map, 0, m->m_pkthdr.len,
183 BUS_DMASYNC_PREWRITE);
185 m->m_flags |= M_HASTXDMAMAP;
188 if ((m->m_flags & M_HASTXDMAMAP) == 0)
192 if (PDQ_OS_HDR_OFFSET != PDQ_RX_FC_OFFSET) {
193 m->m_data[0] = PDQ_FDDI_PH0;
194 m->m_data[1] = PDQ_FDDI_PH1;
195 m->m_data[2] = PDQ_FDDI_PH2;
199 if (pdq_queue_transmit_data(sc->sc_pdq, m) == PDQ_FALSE)
203 ifp->if_drv_flags |= IFF_DRV_OACTIVE;
204 IF_PREPEND(&ifp->if_snd, m);
207 PDQ_DO_TYPE2_PRODUCER(sc->sc_pdq);
208 sc->sc_flags &= ~PDQIF_DOWNCALL;
212 pdq_ifstart(struct ifnet *ifp)
214 pdq_softc_t * const sc = PDQ_OS_IFP_TO_SOFTC(ifp);
217 pdq_ifstart_locked(ifp);
228 pdq_softc_t *sc = pdq->pdq_os_ctx;
229 struct ifnet *ifp = PDQ_IFNET(sc);
230 struct fddi_header *fh;
232 if_inc_counter(ifp, IFCOUNTER_IPACKETS, 1);
233 #if defined(PDQ_BUS_DMA)
236 * Even though the first mbuf start at the first fddi header octet,
237 * the dmamap starts PDQ_OS_HDR_OFFSET octets earlier. Any additional
238 * mbufs will start normally.
240 int offset = PDQ_OS_HDR_OFFSET;
242 for (m0 = m; m0 != NULL; m0 = m0->m_next, offset = 0) {
243 pdq_os_databuf_sync(sc, m0, offset, m0->m_len, BUS_DMASYNC_POSTREAD);
244 bus_dmamap_unload(sc->sc_dmatag, M_GETCTX(m0, bus_dmamap_t));
245 bus_dmamap_destroy(sc->sc_dmatag, M_GETCTX(m0, bus_dmamap_t));
246 m0->m_flags &= ~M_HASRXDMAMAP;
251 m->m_pkthdr.len = pktlen;
252 fh = mtod(m, struct fddi_header *);
253 if (drop || (fh->fddi_fc & (FDDIFC_L|FDDIFC_F)) != FDDIFC_LLC_ASYNC) {
254 if_inc_counter(ifp, IFCOUNTER_IQDROPS, 1);
255 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1);
256 PDQ_OS_DATABUF_FREE(pdq, m);
260 m->m_pkthdr.rcvif = ifp;
262 (*ifp->if_input)(ifp, m);
267 pdq_os_restart_transmitter(
270 pdq_softc_t *sc = pdq->pdq_os_ctx;
271 PDQ_IFNET(sc)->if_drv_flags &= ~IFF_DRV_OACTIVE;
272 if (IFQ_IS_EMPTY(&PDQ_IFNET(sc)->if_snd) == 0) {
273 sc->timer = PDQ_OS_TX_TIMEOUT;
274 if ((sc->sc_flags & PDQIF_DOWNCALL) == 0)
275 pdq_ifstart_locked(PDQ_IFNET(sc));
282 pdq_os_transmit_done(
286 pdq_softc_t *sc = pdq->pdq_os_ctx;
287 #if defined(NBPFILTER) && NBPFILTER > 0
288 if (PQD_IFNET(sc)->if_bpf != NULL)
291 PDQ_OS_DATABUF_FREE(pdq, m);
292 if_inc_counter(PDQ_IFNET(sc), IFCOUNTER_OPACKETS, 1);
301 pdq_softc_t *sc = pdq->pdq_os_ctx;
303 struct ifmultiaddr *ifma;
308 * ADDR_FILTER_SET is always issued before FILTER_SET so
309 * we can play with PDQ_ALLMULTI and not worry about
310 * queueing a FILTER_SET ourselves.
313 pdq->pdq_flags &= ~PDQ_ALLMULTI;
314 #if defined(IFF_ALLMULTI)
315 PDQ_IFNET(sc)->if_flags &= ~IFF_ALLMULTI;
318 if_maddr_rlock(PDQ_IFNET(sc));
319 for (ifma = TAILQ_FIRST(&PDQ_IFNET(sc)->if_multiaddrs); ifma && num_addrs > 0;
320 ifma = TAILQ_NEXT(ifma, ifma_link)) {
322 if (ifma->ifma_addr->sa_family != AF_LINK)
324 mcaddr = LLADDR((struct sockaddr_dl *)ifma->ifma_addr);
325 ((u_short *) addr->lanaddr_bytes)[0] = ((u_short *) mcaddr)[0];
326 ((u_short *) addr->lanaddr_bytes)[1] = ((u_short *) mcaddr)[1];
327 ((u_short *) addr->lanaddr_bytes)[2] = ((u_short *) mcaddr)[2];
331 if_maddr_runlock(PDQ_IFNET(sc));
333 * If not all the address fit into the CAM, turn on all-multicast mode.
336 pdq->pdq_flags |= PDQ_ALLMULTI;
337 #if defined(IFF_ALLMULTI)
338 PDQ_IFNET(sc)->if_flags |= IFF_ALLMULTI;
343 #if defined(IFM_FDDI)
348 pdq_softc_t * const sc = PDQ_OS_IFP_TO_SOFTC(ifp);
351 if (sc->sc_ifmedia.ifm_media & IFM_FDX) {
352 if ((sc->sc_pdq->pdq_flags & PDQ_WANT_FDX) == 0) {
353 sc->sc_pdq->pdq_flags |= PDQ_WANT_FDX;
354 if (sc->sc_pdq->pdq_flags & PDQ_RUNNING)
357 } else if (sc->sc_pdq->pdq_flags & PDQ_WANT_FDX) {
358 sc->sc_pdq->pdq_flags &= ~PDQ_WANT_FDX;
359 if (sc->sc_pdq->pdq_flags & PDQ_RUNNING)
370 struct ifmediareq *ifmr)
372 pdq_softc_t * const sc = PDQ_OS_IFP_TO_SOFTC(ifp);
375 ifmr->ifm_status = IFM_AVALID;
376 if (sc->sc_pdq->pdq_flags & PDQ_IS_ONRING)
377 ifmr->ifm_status |= IFM_ACTIVE;
379 ifmr->ifm_active = (ifmr->ifm_current & ~IFM_FDX);
380 if (sc->sc_pdq->pdq_flags & PDQ_IS_FDX)
381 ifmr->ifm_active |= IFM_FDX;
386 pdq_os_update_status(
390 pdq_softc_t * const sc = pdq->pdq_os_ctx;
391 const pdq_response_status_chars_get_t *rsp = arg;
394 switch (rsp->status_chars_get.pmd_type[0]) {
395 case PDQ_PMD_TYPE_ANSI_MUTLI_MODE: media = IFM_FDDI_MMF; break;
396 case PDQ_PMD_TYPE_ANSI_SINGLE_MODE_TYPE_1: media = IFM_FDDI_SMF; break;
397 case PDQ_PMD_TYPE_ANSI_SIGNLE_MODE_TYPE_2: media = IFM_FDDI_SMF; break;
398 case PDQ_PMD_TYPE_UNSHIELDED_TWISTED_PAIR: media = IFM_FDDI_UTP; break;
399 default: media |= IFM_MANUAL;
402 if (rsp->status_chars_get.station_type == PDQ_STATION_TYPE_DAS)
403 media |= IFM_FDDI_DA;
405 sc->sc_ifmedia.ifm_media = media | IFM_FDDI;
407 #endif /* defined(IFM_FDDI) */
415 pdq_softc_t *sc = PDQ_OS_IFP_TO_SOFTC(ifp);
427 if (PDQ_IFNET(sc)->if_drv_flags & IFF_DRV_RUNNING) {
435 #if defined(IFM_FDDI) && defined(SIOCSIFMEDIA)
438 struct ifreq *ifr = (struct ifreq *)data;
439 error = ifmedia_ioctl(ifp, ifr, &sc->sc_ifmedia, cmd);
445 error = fddi_ioctl(ifp, cmd, data);
453 #ifndef IFF_NOTRAILERS
454 #define IFF_NOTRAILERS 0
458 pdq_ifattach(pdq_softc_t *sc, const pdq_uint8_t *llc, pdq_type_t type)
462 KASSERT(type == PDQ_DEFPA, ("We only support PCI attachment."));
464 ifp = PDQ_IFNET(sc) = if_alloc(IFT_FDDI);
466 device_printf(sc->dev, "can not if_alloc()\n");
470 mtx_init(&sc->mtx, device_get_nameunit(sc->dev), MTX_NETWORK_LOCK,
472 callout_init_mtx(&sc->watchdog, &sc->mtx, 0);
474 if_initname(ifp, device_get_name(sc->dev), device_get_unit(sc->dev));
476 ifp->if_init = pdq_ifinit;
477 ifp->if_snd.ifq_maxlen = ifqmaxlen;
478 ifp->if_flags = IFF_BROADCAST|IFF_SIMPLEX|IFF_NOTRAILERS|IFF_MULTICAST;
480 ifp->if_ioctl = pdq_ifioctl;
481 ifp->if_start = pdq_ifstart;
483 #if defined(IFM_FDDI)
485 const int media = sc->sc_ifmedia.ifm_media;
486 ifmedia_init(&sc->sc_ifmedia, IFM_FDX,
487 pdq_ifmedia_change, pdq_ifmedia_status);
488 ifmedia_add(&sc->sc_ifmedia, media, 0, 0);
489 ifmedia_set(&sc->sc_ifmedia, media);
493 sc->sc_pdq = pdq_initialize(sc->mem_bst, sc->mem_bsh, ifp->if_xname, -1,
495 if (sc->sc_pdq == NULL) {
496 device_printf(sc->dev, "Initialization failed.\n");
500 fddi_ifattach(ifp, llc, FDDI_BPF_SUPPORTED);
505 pdq_ifdetach (pdq_softc_t *sc)
511 fddi_ifdetach(ifp, FDDI_BPF_SUPPORTED);
515 callout_drain(&sc->watchdog);
522 pdq_free (device_t dev)
526 sc = device_get_softc(dev);
529 bus_release_resource(dev, sc->io_type, sc->io_rid, sc->io);
531 bus_release_resource(dev, sc->mem_type, sc->mem_rid, sc->mem);
533 bus_teardown_intr(dev, sc->irq, sc->irq_ih);
535 bus_release_resource(dev, SYS_RES_IRQ, sc->irq_rid, sc->irq);
542 if (mtx_initialized(&sc->mtx) != 0) {
543 mtx_destroy(&sc->mtx);
549 #if defined(PDQ_BUS_DMA)
551 pdq_os_memalloc_contig(
554 pdq_softc_t * const sc = pdq->pdq_os_ctx;
555 bus_dma_segment_t db_segs[1], ui_segs[1], cb_segs[1];
556 int db_nsegs = 0, ui_nsegs = 0;
560 not_ok = bus_dmamem_alloc(sc->sc_dmatag,
561 sizeof(*pdq->pdq_dbp), sizeof(*pdq->pdq_dbp),
562 sizeof(*pdq->pdq_dbp), db_segs, 1, &db_nsegs,
566 not_ok = bus_dmamem_map(sc->sc_dmatag, db_segs, db_nsegs,
567 sizeof(*pdq->pdq_dbp), (caddr_t *) &pdq->pdq_dbp,
572 not_ok = bus_dmamap_create(sc->sc_dmatag, db_segs[0].ds_len, 1,
573 0x2000, 0, BUS_DMA_NOWAIT, &sc->sc_dbmap);
577 not_ok = bus_dmamap_load(sc->sc_dmatag, sc->sc_dbmap,
578 pdq->pdq_dbp, sizeof(*pdq->pdq_dbp),
579 NULL, BUS_DMA_NOWAIT);
583 pdq->pdq_pa_descriptor_block = sc->sc_dbmap->dm_segs[0].ds_addr;
584 not_ok = bus_dmamem_alloc(sc->sc_dmatag,
585 PDQ_OS_PAGESIZE, PDQ_OS_PAGESIZE, PDQ_OS_PAGESIZE,
586 ui_segs, 1, &ui_nsegs, BUS_DMA_NOWAIT);
590 not_ok = bus_dmamem_map(sc->sc_dmatag, ui_segs, ui_nsegs,
592 (caddr_t *) &pdq->pdq_unsolicited_info.ui_events,
597 not_ok = bus_dmamap_create(sc->sc_dmatag, ui_segs[0].ds_len, 1,
598 PDQ_OS_PAGESIZE, 0, BUS_DMA_NOWAIT,
603 not_ok = bus_dmamap_load(sc->sc_dmatag, sc->sc_uimap,
604 pdq->pdq_unsolicited_info.ui_events,
605 PDQ_OS_PAGESIZE, NULL, BUS_DMA_NOWAIT);
609 pdq->pdq_unsolicited_info.ui_pa_bufstart = sc->sc_uimap->dm_segs[0].ds_addr;
610 cb_segs[0] = db_segs[0];
611 cb_segs[0].ds_addr += offsetof(pdq_descriptor_block_t, pdqdb_consumer);
612 cb_segs[0].ds_len = sizeof(pdq_consumer_block_t);
613 not_ok = bus_dmamem_map(sc->sc_dmatag, cb_segs, 1,
614 sizeof(*pdq->pdq_cbp), (caddr_t *) &pdq->pdq_cbp,
615 BUS_DMA_NOWAIT|BUS_DMA_COHERENT);
619 not_ok = bus_dmamap_create(sc->sc_dmatag, cb_segs[0].ds_len, 1,
620 0x2000, 0, BUS_DMA_NOWAIT, &sc->sc_cbmap);
624 not_ok = bus_dmamap_load(sc->sc_dmatag, sc->sc_cbmap,
625 (caddr_t) pdq->pdq_cbp, sizeof(*pdq->pdq_cbp),
626 NULL, BUS_DMA_NOWAIT);
629 pdq->pdq_pa_consumer_block = sc->sc_cbmap->dm_segs[0].ds_addr;
635 bus_dmamap_unload(sc->sc_dmatag, sc->sc_cbmap);
639 bus_dmamap_destroy(sc->sc_dmatag, sc->sc_cbmap);
643 bus_dmamem_unmap(sc->sc_dmatag,
644 (caddr_t) pdq->pdq_cbp, sizeof(*pdq->pdq_cbp));
648 bus_dmamap_unload(sc->sc_dmatag, sc->sc_uimap);
652 bus_dmamap_destroy(sc->sc_dmatag, sc->sc_uimap);
656 bus_dmamem_unmap(sc->sc_dmatag,
657 (caddr_t) pdq->pdq_unsolicited_info.ui_events,
662 bus_dmamem_free(sc->sc_dmatag, ui_segs, ui_nsegs);
666 bus_dmamap_unload(sc->sc_dmatag, sc->sc_dbmap);
670 bus_dmamap_destroy(sc->sc_dmatag, sc->sc_dbmap);
674 bus_dmamem_unmap(sc->sc_dmatag,
675 (caddr_t) pdq->pdq_dbp,
676 sizeof(*pdq->pdq_dbp));
680 bus_dmamem_free(sc->sc_dmatag, db_segs, db_nsegs);
689 pdq_os_descriptor_block_sync(
695 bus_dmamap_sync(sc->sc_dmatag, sc->sc_dbmap, offset, length, ops);
699 pdq_os_consumer_block_sync(
703 bus_dmamap_sync(sc->sc_dmatag, sc->sc_cbmap, 0, sizeof(pdq_consumer_block_t), ops);
707 pdq_os_unsolicited_event_sync(
713 bus_dmamap_sync(sc->sc_dmatag, sc->sc_uimap, offset, length, ops);
724 bus_dmamap_sync(sc->sc_dmatag, M_GETCTX(m, bus_dmamap_t), offset, length, ops);
732 if (m->m_flags & (M_HASRXDMAMAP|M_HASTXDMAMAP)) {
733 bus_dmamap_t map = M_GETCTX(m, bus_dmamap_t);
734 bus_dmamap_unload(sc->sc_dmatag, map);
735 bus_dmamap_destroy(sc->sc_dmatag, map);
736 m->m_flags &= ~(M_HASRXDMAMAP|M_HASTXDMAMAP);
742 pdq_os_databuf_alloc(
748 MGETHDR(m, M_NOWAIT, MT_DATA);
750 printf("%s: can't alloc small buf\n", sc->sc_dev.dv_xname);
753 if (!(MCLGET(m, M_NOWAIT))) {
754 printf("%s: can't alloc cluster\n", sc->sc_dev.dv_xname);
758 m->m_pkthdr.len = m->m_len = PDQ_OS_DATABUF_SIZE;
760 if (bus_dmamap_create(sc->sc_dmatag, PDQ_OS_DATABUF_SIZE,
761 1, PDQ_OS_DATABUF_SIZE, 0, BUS_DMA_NOWAIT, &map)) {
762 printf("%s: can't create dmamap\n", sc->sc_dev.dv_xname);
766 if (bus_dmamap_load_mbuf(sc->sc_dmatag, map, m,
767 BUS_DMA_READ|BUS_DMA_NOWAIT)) {
768 printf("%s: can't load dmamap\n", sc->sc_dev.dv_xname);
769 bus_dmamap_destroy(sc->sc_dmatag, map);
773 m->m_flags |= M_HASRXDMAMAP;