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 * $NetBSD: pdq_ifsubr.c,v 1.12 1997/06/05 01:56:35 thomas Exp$
31 * DEC PDQ FDDI Controller; code for BSD derived operating systems
33 * This module provide bus independent BSD specific O/S functions.
34 * (ie. it provides an ifnet interface to the rest of the system)
38 #include <sys/cdefs.h>
39 __KERNEL_RCSID(0, "$NetBSD: pdq_ifsubr.c,v 1.38 2001/12/21 23:21:47 matt Exp $");
44 #include <sys/param.h>
45 #include <sys/systm.h>
46 #include <sys/kernel.h>
48 #include <sys/mutex.h>
49 #include <sys/malloc.h>
50 #include <sys/socket.h>
51 #include <sys/sockio.h>
53 #include <sys/module.h>
56 #include <machine/bus_memio.h>
57 #include <machine/bus_pio.h>
58 #include <machine/bus.h>
59 #include <machine/resource.h>
63 #include <net/if_arp.h>
64 #include <net/if_dl.h>
65 #include <net/if_media.h>
70 #include <dev/pdq/pdq_freebsd.h>
71 #include <dev/pdq/pdqreg.h>
73 devclass_t pdq_devclass;
79 if (sc->sc_if.if_flags & IFF_UP) {
80 sc->sc_if.if_flags |= IFF_RUNNING;
81 if (sc->sc_if.if_flags & IFF_PROMISC) {
82 sc->sc_pdq->pdq_flags |= PDQ_PROMISC;
84 sc->sc_pdq->pdq_flags &= ~PDQ_PROMISC;
86 if (sc->sc_if.if_flags & IFF_LINK1) {
87 sc->sc_pdq->pdq_flags |= PDQ_PASS_SMT;
89 sc->sc_pdq->pdq_flags &= ~PDQ_PASS_SMT;
91 sc->sc_pdq->pdq_flags |= PDQ_RUNNING;
94 sc->sc_if.if_flags &= ~IFF_RUNNING;
95 sc->sc_pdq->pdq_flags &= ~PDQ_RUNNING;
105 * No progress was made on the transmit queue for PDQ_OS_TX_TRANSMIT
106 * seconds. Remove all queued packets.
109 ifp->if_flags &= ~IFF_OACTIVE;
113 IFQ_DEQUEUE(&ifp->if_snd, m);
116 PDQ_OS_DATABUF_FREE(PDQ_OS_IFP_TO_SOFTC(ifp)->sc_pdq, m);
124 pdq_softc_t * const sc = PDQ_OS_IFP_TO_SOFTC(ifp);
128 if ((ifp->if_flags & IFF_RUNNING) == 0)
131 if (sc->sc_if.if_timer == 0)
132 sc->sc_if.if_timer = PDQ_OS_TX_TIMEOUT;
134 if ((sc->sc_pdq->pdq_flags & PDQ_TXOK) == 0) {
135 sc->sc_if.if_flags |= IFF_OACTIVE;
138 sc->sc_flags |= PDQIF_DOWNCALL;
140 IF_DEQUEUE(&ifp->if_snd, m);
143 #if defined(PDQ_BUS_DMA) && !defined(PDQ_BUS_DMA_NOTX)
144 if ((m->m_flags & M_HASTXDMAMAP) == 0) {
146 if (PDQ_OS_HDR_OFFSET != PDQ_RX_FC_OFFSET) {
147 m->m_data[0] = PDQ_FDDI_PH0;
148 m->m_data[1] = PDQ_FDDI_PH1;
149 m->m_data[2] = PDQ_FDDI_PH2;
151 if (!bus_dmamap_create(sc->sc_dmatag, m->m_pkthdr.len, 255,
152 m->m_pkthdr.len, 0, BUS_DMA_NOWAIT, &map)) {
153 if (!bus_dmamap_load_mbuf(sc->sc_dmatag, map, m,
154 BUS_DMA_WRITE|BUS_DMA_NOWAIT)) {
155 bus_dmamap_sync(sc->sc_dmatag, map, 0, m->m_pkthdr.len,
156 BUS_DMASYNC_PREWRITE);
158 m->m_flags |= M_HASTXDMAMAP;
161 if ((m->m_flags & M_HASTXDMAMAP) == 0)
165 if (PDQ_OS_HDR_OFFSET != PDQ_RX_FC_OFFSET) {
166 m->m_data[0] = PDQ_FDDI_PH0;
167 m->m_data[1] = PDQ_FDDI_PH1;
168 m->m_data[2] = PDQ_FDDI_PH2;
172 if (pdq_queue_transmit_data(sc->sc_pdq, m) == PDQ_FALSE)
176 ifp->if_flags |= IFF_OACTIVE;
177 IF_PREPEND(&ifp->if_snd, m);
180 PDQ_DO_TYPE2_PRODUCER(sc->sc_pdq);
181 sc->sc_flags &= ~PDQIF_DOWNCALL;
191 pdq_softc_t *sc = pdq->pdq_os_ctx;
192 struct fddi_header *fh;
194 sc->sc_if.if_ipackets++;
195 #if defined(PDQ_BUS_DMA)
198 * Even though the first mbuf start at the first fddi header octet,
199 * the dmamap starts PDQ_OS_HDR_OFFSET octets earlier. Any additional
200 * mbufs will start normally.
202 int offset = PDQ_OS_HDR_OFFSET;
204 for (m0 = m; m0 != NULL; m0 = m0->m_next, offset = 0) {
205 pdq_os_databuf_sync(sc, m0, offset, m0->m_len, BUS_DMASYNC_POSTREAD);
206 bus_dmamap_unload(sc->sc_dmatag, M_GETCTX(m0, bus_dmamap_t));
207 bus_dmamap_destroy(sc->sc_dmatag, M_GETCTX(m0, bus_dmamap_t));
208 m0->m_flags &= ~M_HASRXDMAMAP;
213 m->m_pkthdr.len = pktlen;
215 if (sc->sc_bpf != NULL)
218 fh = mtod(m, struct fddi_header *);
219 if (drop || (fh->fddi_fc & (FDDIFC_L|FDDIFC_F)) != FDDIFC_LLC_ASYNC) {
220 sc->sc_if.if_iqdrops++;
221 sc->sc_if.if_ierrors++;
222 PDQ_OS_DATABUF_FREE(pdq, m);
226 m_adj(m, FDDI_HDR_LEN);
227 m->m_pkthdr.rcvif = &sc->sc_if;
228 fddi_input(&sc->sc_if, fh, m);
232 pdq_os_restart_transmitter(
235 pdq_softc_t *sc = pdq->pdq_os_ctx;
236 sc->sc_if.if_flags &= ~IFF_OACTIVE;
237 if (IFQ_IS_EMPTY(&sc->sc_if.if_snd) == 0) {
238 sc->sc_if.if_timer = PDQ_OS_TX_TIMEOUT;
239 if ((sc->sc_flags & PDQIF_DOWNCALL) == 0)
240 pdq_ifstart(&sc->sc_if);
242 sc->sc_if.if_timer = 0;
247 pdq_os_transmit_done(
251 pdq_softc_t *sc = pdq->pdq_os_ctx;
253 if (sc->sc_bpf != NULL)
256 PDQ_OS_DATABUF_FREE(pdq, m);
257 sc->sc_if.if_opackets++;
266 pdq_softc_t *sc = pdq->pdq_os_ctx;
268 struct ifmultiaddr *ifma;
270 ifp = &sc->arpcom.ac_if;
273 * ADDR_FILTER_SET is always issued before FILTER_SET so
274 * we can play with PDQ_ALLMULTI and not worry about
275 * queueing a FILTER_SET ourselves.
278 pdq->pdq_flags &= ~PDQ_ALLMULTI;
279 #if defined(IFF_ALLMULTI)
280 sc->sc_if.if_flags &= ~IFF_ALLMULTI;
283 for (ifma = TAILQ_FIRST(&sc->sc_if.if_multiaddrs); ifma && num_addrs > 0;
284 ifma = TAILQ_NEXT(ifma, ifma_link)) {
286 if (ifma->ifma_addr->sa_family != AF_LINK)
288 mcaddr = LLADDR((struct sockaddr_dl *)ifma->ifma_addr);
289 ((u_short *) addr->lanaddr_bytes)[0] = ((u_short *) mcaddr)[0];
290 ((u_short *) addr->lanaddr_bytes)[1] = ((u_short *) mcaddr)[1];
291 ((u_short *) addr->lanaddr_bytes)[2] = ((u_short *) mcaddr)[2];
296 * If not all the address fit into the CAM, turn on all-multicast mode.
299 pdq->pdq_flags |= PDQ_ALLMULTI;
300 #if defined(IFF_ALLMULTI)
301 sc->sc_if.if_flags |= IFF_ALLMULTI;
306 #if defined(IFM_FDDI)
311 pdq_softc_t * const sc = PDQ_OS_IFP_TO_SOFTC(ifp);
313 if (sc->sc_ifmedia.ifm_media & IFM_FDX) {
314 if ((sc->sc_pdq->pdq_flags & PDQ_WANT_FDX) == 0) {
315 sc->sc_pdq->pdq_flags |= PDQ_WANT_FDX;
316 if (sc->sc_pdq->pdq_flags & PDQ_RUNNING)
319 } else if (sc->sc_pdq->pdq_flags & PDQ_WANT_FDX) {
320 sc->sc_pdq->pdq_flags &= ~PDQ_WANT_FDX;
321 if (sc->sc_pdq->pdq_flags & PDQ_RUNNING)
331 struct ifmediareq *ifmr)
333 pdq_softc_t * const sc = PDQ_OS_IFP_TO_SOFTC(ifp);
335 ifmr->ifm_status = IFM_AVALID;
336 if (sc->sc_pdq->pdq_flags & PDQ_IS_ONRING)
337 ifmr->ifm_status |= IFM_ACTIVE;
339 ifmr->ifm_active = (ifmr->ifm_current & ~IFM_FDX);
340 if (sc->sc_pdq->pdq_flags & PDQ_IS_FDX)
341 ifmr->ifm_active |= IFM_FDX;
345 pdq_os_update_status(
349 pdq_softc_t * const sc = pdq->pdq_os_ctx;
350 const pdq_response_status_chars_get_t *rsp = arg;
353 switch (rsp->status_chars_get.pmd_type[0]) {
354 case PDQ_PMD_TYPE_ANSI_MUTLI_MODE: media = IFM_FDDI_MMF; break;
355 case PDQ_PMD_TYPE_ANSI_SINGLE_MODE_TYPE_1: media = IFM_FDDI_SMF; break;
356 case PDQ_PMD_TYPE_ANSI_SIGNLE_MODE_TYPE_2: media = IFM_FDDI_SMF; break;
357 case PDQ_PMD_TYPE_UNSHIELDED_TWISTED_PAIR: media = IFM_FDDI_UTP; break;
358 default: media |= IFM_MANUAL;
361 if (rsp->status_chars_get.station_type == PDQ_STATION_TYPE_DAS)
362 media |= IFM_FDDI_DA;
364 sc->sc_ifmedia.ifm_media = media | IFM_FDDI;
366 #endif /* defined(IFM_FDDI) */
374 pdq_softc_t *sc = PDQ_OS_IFP_TO_SOFTC(ifp);
383 error = fddi_ioctl(ifp, cmd, data);
394 if (sc->sc_if.if_flags & IFF_RUNNING) {
401 #if defined(IFM_FDDI) && defined(SIOCSIFMEDIA)
404 struct ifreq *ifr = (struct ifreq *)data;
405 error = ifmedia_ioctl(ifp, ifr, &sc->sc_ifmedia, cmd);
420 #ifndef IFF_NOTRAILERS
421 #define IFF_NOTRAILERS 0
425 pdq_ifattach(pdq_softc_t *sc)
427 struct ifnet *ifp = &sc->sc_if;
429 mtx_init(&sc->mtx, device_get_nameunit(sc->dev), MTX_NETWORK_LOCK,
430 MTX_DEF | MTX_RECURSE);
433 ifp->if_init = (if_init_f_t *)pdq_ifinit;
434 ifp->if_snd.ifq_maxlen = IFQ_MAXLEN;
435 ifp->if_flags = IFF_BROADCAST|IFF_SIMPLEX|IFF_NOTRAILERS|IFF_MULTICAST;
437 #if (defined(__FreeBSD__) && BSD >= 199506) || defined(__NetBSD__)
438 ifp->if_watchdog = pdq_ifwatchdog;
440 ifp->if_watchdog = ifwatchdog;
443 ifp->if_ioctl = pdq_ifioctl;
444 #if !defined(__NetBSD__) && !defined(__FreeBSD__)
445 ifp->if_output = fddi_output;
447 ifp->if_start = pdq_ifstart;
449 #if defined(IFM_FDDI)
451 const int media = sc->sc_ifmedia.ifm_media;
452 ifmedia_init(&sc->sc_ifmedia, IFM_FDX,
453 pdq_ifmedia_change, pdq_ifmedia_status);
454 ifmedia_add(&sc->sc_ifmedia, media, 0, 0);
455 ifmedia_set(&sc->sc_ifmedia, media);
460 #if defined(__NetBSD__)
461 fddi_ifattach(ifp, (caddr_t)&sc->sc_pdq->pdq_hwaddr);
463 fddi_ifattach(ifp, FDDI_BPF_SUPPORTED);
468 pdq_ifdetach (pdq_softc_t *sc)
472 ifp = &sc->arpcom.ac_if;
474 fddi_ifdetach(ifp, FDDI_BPF_SUPPORTED);
475 pdq_stop(sc->sc_pdq);
482 pdq_free (device_t dev)
486 sc = device_get_softc(dev);
489 bus_release_resource(dev, sc->io_type, sc->io_rid, sc->io);
491 bus_release_resource(dev, sc->mem_type, sc->mem_rid, sc->mem);
493 bus_teardown_intr(dev, sc->irq, sc->irq_ih);
495 bus_release_resource(dev, SYS_RES_IRQ, sc->irq_rid, sc->irq);
500 if (mtx_initialized(&sc->mtx) != 0) {
501 mtx_destroy(&sc->mtx);
507 #if defined(PDQ_BUS_DMA)
509 pdq_os_memalloc_contig(
512 pdq_softc_t * const sc = pdq->pdq_os_ctx;
513 bus_dma_segment_t db_segs[1], ui_segs[1], cb_segs[1];
514 int db_nsegs = 0, ui_nsegs = 0;
518 not_ok = bus_dmamem_alloc(sc->sc_dmatag,
519 sizeof(*pdq->pdq_dbp), sizeof(*pdq->pdq_dbp),
520 sizeof(*pdq->pdq_dbp), db_segs, 1, &db_nsegs,
524 not_ok = bus_dmamem_map(sc->sc_dmatag, db_segs, db_nsegs,
525 sizeof(*pdq->pdq_dbp), (caddr_t *) &pdq->pdq_dbp,
530 not_ok = bus_dmamap_create(sc->sc_dmatag, db_segs[0].ds_len, 1,
531 0x2000, 0, BUS_DMA_NOWAIT, &sc->sc_dbmap);
535 not_ok = bus_dmamap_load(sc->sc_dmatag, sc->sc_dbmap,
536 pdq->pdq_dbp, sizeof(*pdq->pdq_dbp),
537 NULL, BUS_DMA_NOWAIT);
541 pdq->pdq_pa_descriptor_block = sc->sc_dbmap->dm_segs[0].ds_addr;
542 not_ok = bus_dmamem_alloc(sc->sc_dmatag,
543 PDQ_OS_PAGESIZE, PDQ_OS_PAGESIZE, PDQ_OS_PAGESIZE,
544 ui_segs, 1, &ui_nsegs, BUS_DMA_NOWAIT);
548 not_ok = bus_dmamem_map(sc->sc_dmatag, ui_segs, ui_nsegs,
550 (caddr_t *) &pdq->pdq_unsolicited_info.ui_events,
555 not_ok = bus_dmamap_create(sc->sc_dmatag, ui_segs[0].ds_len, 1,
556 PDQ_OS_PAGESIZE, 0, BUS_DMA_NOWAIT,
561 not_ok = bus_dmamap_load(sc->sc_dmatag, sc->sc_uimap,
562 pdq->pdq_unsolicited_info.ui_events,
563 PDQ_OS_PAGESIZE, NULL, BUS_DMA_NOWAIT);
567 pdq->pdq_unsolicited_info.ui_pa_bufstart = sc->sc_uimap->dm_segs[0].ds_addr;
568 cb_segs[0] = db_segs[0];
569 cb_segs[0].ds_addr += offsetof(pdq_descriptor_block_t, pdqdb_consumer);
570 cb_segs[0].ds_len = sizeof(pdq_consumer_block_t);
571 not_ok = bus_dmamem_map(sc->sc_dmatag, cb_segs, 1,
572 sizeof(*pdq->pdq_cbp), (caddr_t *) &pdq->pdq_cbp,
573 BUS_DMA_NOWAIT|BUS_DMA_COHERENT);
577 not_ok = bus_dmamap_create(sc->sc_dmatag, cb_segs[0].ds_len, 1,
578 0x2000, 0, BUS_DMA_NOWAIT, &sc->sc_cbmap);
582 not_ok = bus_dmamap_load(sc->sc_dmatag, sc->sc_cbmap,
583 (caddr_t) pdq->pdq_cbp, sizeof(*pdq->pdq_cbp),
584 NULL, BUS_DMA_NOWAIT);
587 pdq->pdq_pa_consumer_block = sc->sc_cbmap->dm_segs[0].ds_addr;
593 bus_dmamap_unload(sc->sc_dmatag, sc->sc_cbmap);
597 bus_dmamap_destroy(sc->sc_dmatag, sc->sc_cbmap);
601 bus_dmamem_unmap(sc->sc_dmatag,
602 (caddr_t) pdq->pdq_cbp, sizeof(*pdq->pdq_cbp));
606 bus_dmamap_unload(sc->sc_dmatag, sc->sc_uimap);
610 bus_dmamap_destroy(sc->sc_dmatag, sc->sc_uimap);
614 bus_dmamem_unmap(sc->sc_dmatag,
615 (caddr_t) pdq->pdq_unsolicited_info.ui_events,
620 bus_dmamem_free(sc->sc_dmatag, ui_segs, ui_nsegs);
624 bus_dmamap_unload(sc->sc_dmatag, sc->sc_dbmap);
628 bus_dmamap_destroy(sc->sc_dmatag, sc->sc_dbmap);
632 bus_dmamem_unmap(sc->sc_dmatag,
633 (caddr_t) pdq->pdq_dbp,
634 sizeof(*pdq->pdq_dbp));
638 bus_dmamem_free(sc->sc_dmatag, db_segs, db_nsegs);
647 pdq_os_descriptor_block_sync(
653 bus_dmamap_sync(sc->sc_dmatag, sc->sc_dbmap, offset, length, ops);
657 pdq_os_consumer_block_sync(
661 bus_dmamap_sync(sc->sc_dmatag, sc->sc_cbmap, 0, sizeof(pdq_consumer_block_t), ops);
665 pdq_os_unsolicited_event_sync(
671 bus_dmamap_sync(sc->sc_dmatag, sc->sc_uimap, offset, length, ops);
682 bus_dmamap_sync(sc->sc_dmatag, M_GETCTX(m, bus_dmamap_t), offset, length, ops);
690 if (m->m_flags & (M_HASRXDMAMAP|M_HASTXDMAMAP)) {
691 bus_dmamap_t map = M_GETCTX(m, bus_dmamap_t);
692 bus_dmamap_unload(sc->sc_dmatag, map);
693 bus_dmamap_destroy(sc->sc_dmatag, map);
694 m->m_flags &= ~(M_HASRXDMAMAP|M_HASTXDMAMAP);
700 pdq_os_databuf_alloc(
706 MGETHDR(m, M_DONTWAIT, MT_DATA);
708 printf("%s: can't alloc small buf\n", sc->sc_dev.dv_xname);
711 MCLGET(m, M_DONTWAIT);
712 if ((m->m_flags & M_EXT) == 0) {
713 printf("%s: can't alloc cluster\n", sc->sc_dev.dv_xname);
717 m->m_pkthdr.len = m->m_len = PDQ_OS_DATABUF_SIZE;
719 if (bus_dmamap_create(sc->sc_dmatag, PDQ_OS_DATABUF_SIZE,
720 1, PDQ_OS_DATABUF_SIZE, 0, BUS_DMA_NOWAIT, &map)) {
721 printf("%s: can't create dmamap\n", sc->sc_dev.dv_xname);
725 if (bus_dmamap_load_mbuf(sc->sc_dmatag, map, m,
726 BUS_DMA_READ|BUS_DMA_NOWAIT)) {
727 printf("%s: can't load dmamap\n", sc->sc_dev.dv_xname);
728 bus_dmamap_destroy(sc->sc_dmatag, map);
732 m->m_flags |= M_HASRXDMAMAP;