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_arp.h>
60 #include <net/if_dl.h>
61 #include <net/if_media.h>
62 #include <net/if_types.h>
67 #include <dev/pdq/pdq_freebsd.h>
68 #include <dev/pdq/pdqreg.h>
70 devclass_t pdq_devclass;
76 if (PDQ_IFNET(sc)->if_flags & IFF_UP) {
77 PDQ_IFNET(sc)->if_drv_flags |= IFF_DRV_RUNNING;
78 if (PDQ_IFNET(sc)->if_flags & IFF_PROMISC) {
79 sc->sc_pdq->pdq_flags |= PDQ_PROMISC;
81 sc->sc_pdq->pdq_flags &= ~PDQ_PROMISC;
83 if (PDQ_IFNET(sc)->if_flags & IFF_LINK1) {
84 sc->sc_pdq->pdq_flags |= PDQ_PASS_SMT;
86 sc->sc_pdq->pdq_flags &= ~PDQ_PASS_SMT;
88 sc->sc_pdq->pdq_flags |= PDQ_RUNNING;
91 PDQ_IFNET(sc)->if_drv_flags &= ~IFF_DRV_RUNNING;
92 sc->sc_pdq->pdq_flags &= ~PDQ_RUNNING;
102 * No progress was made on the transmit queue for PDQ_OS_TX_TRANSMIT
103 * seconds. Remove all queued packets.
106 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
110 IFQ_DEQUEUE(&ifp->if_snd, m);
113 PDQ_OS_DATABUF_FREE(PDQ_OS_IFP_TO_SOFTC(ifp)->sc_pdq, m);
121 pdq_softc_t * const sc = PDQ_OS_IFP_TO_SOFTC(ifp);
125 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0)
128 if (PDQ_IFNET(sc)->if_timer == 0)
129 PDQ_IFNET(sc)->if_timer = PDQ_OS_TX_TIMEOUT;
131 if ((sc->sc_pdq->pdq_flags & PDQ_TXOK) == 0) {
132 PDQ_IFNET(sc)->if_drv_flags |= IFF_DRV_OACTIVE;
135 sc->sc_flags |= PDQIF_DOWNCALL;
137 IF_DEQUEUE(&ifp->if_snd, m);
140 #if defined(PDQ_BUS_DMA) && !defined(PDQ_BUS_DMA_NOTX)
141 if ((m->m_flags & M_HASTXDMAMAP) == 0) {
143 if (PDQ_OS_HDR_OFFSET != PDQ_RX_FC_OFFSET) {
144 m->m_data[0] = PDQ_FDDI_PH0;
145 m->m_data[1] = PDQ_FDDI_PH1;
146 m->m_data[2] = PDQ_FDDI_PH2;
148 if (!bus_dmamap_create(sc->sc_dmatag, m->m_pkthdr.len, 255,
149 m->m_pkthdr.len, 0, BUS_DMA_NOWAIT, &map)) {
150 if (!bus_dmamap_load_mbuf(sc->sc_dmatag, map, m,
151 BUS_DMA_WRITE|BUS_DMA_NOWAIT)) {
152 bus_dmamap_sync(sc->sc_dmatag, map, 0, m->m_pkthdr.len,
153 BUS_DMASYNC_PREWRITE);
155 m->m_flags |= M_HASTXDMAMAP;
158 if ((m->m_flags & M_HASTXDMAMAP) == 0)
162 if (PDQ_OS_HDR_OFFSET != PDQ_RX_FC_OFFSET) {
163 m->m_data[0] = PDQ_FDDI_PH0;
164 m->m_data[1] = PDQ_FDDI_PH1;
165 m->m_data[2] = PDQ_FDDI_PH2;
169 if (pdq_queue_transmit_data(sc->sc_pdq, m) == PDQ_FALSE)
173 ifp->if_drv_flags |= IFF_DRV_OACTIVE;
174 IF_PREPEND(&ifp->if_snd, m);
177 PDQ_DO_TYPE2_PRODUCER(sc->sc_pdq);
178 sc->sc_flags &= ~PDQIF_DOWNCALL;
188 pdq_softc_t *sc = pdq->pdq_os_ctx;
189 struct ifnet *ifp = PDQ_IFNET(sc);
190 struct fddi_header *fh;
193 #if defined(PDQ_BUS_DMA)
196 * Even though the first mbuf start at the first fddi header octet,
197 * the dmamap starts PDQ_OS_HDR_OFFSET octets earlier. Any additional
198 * mbufs will start normally.
200 int offset = PDQ_OS_HDR_OFFSET;
202 for (m0 = m; m0 != NULL; m0 = m0->m_next, offset = 0) {
203 pdq_os_databuf_sync(sc, m0, offset, m0->m_len, BUS_DMASYNC_POSTREAD);
204 bus_dmamap_unload(sc->sc_dmatag, M_GETCTX(m0, bus_dmamap_t));
205 bus_dmamap_destroy(sc->sc_dmatag, M_GETCTX(m0, bus_dmamap_t));
206 m0->m_flags &= ~M_HASRXDMAMAP;
211 m->m_pkthdr.len = pktlen;
212 fh = mtod(m, struct fddi_header *);
213 if (drop || (fh->fddi_fc & (FDDIFC_L|FDDIFC_F)) != FDDIFC_LLC_ASYNC) {
216 PDQ_OS_DATABUF_FREE(pdq, m);
220 m->m_pkthdr.rcvif = ifp;
221 (*ifp->if_input)(ifp, m);
225 pdq_os_restart_transmitter(
228 pdq_softc_t *sc = pdq->pdq_os_ctx;
229 PDQ_IFNET(sc)->if_drv_flags &= ~IFF_DRV_OACTIVE;
230 if (IFQ_IS_EMPTY(&PDQ_IFNET(sc)->if_snd) == 0) {
231 PDQ_IFNET(sc)->if_timer = PDQ_OS_TX_TIMEOUT;
232 if ((sc->sc_flags & PDQIF_DOWNCALL) == 0)
233 pdq_ifstart(PDQ_IFNET(sc));
235 PDQ_IFNET(sc)->if_timer = 0;
240 pdq_os_transmit_done(
244 pdq_softc_t *sc = pdq->pdq_os_ctx;
245 #if defined(NBPFILTER) && NBPFILTER > 0
246 if (PQD_IFNET(sc)->if_bpf != NULL)
249 PDQ_OS_DATABUF_FREE(pdq, m);
250 PDQ_IFNET(sc)->if_opackets++;
259 pdq_softc_t *sc = pdq->pdq_os_ctx;
261 struct ifmultiaddr *ifma;
266 * ADDR_FILTER_SET is always issued before FILTER_SET so
267 * we can play with PDQ_ALLMULTI and not worry about
268 * queueing a FILTER_SET ourselves.
271 pdq->pdq_flags &= ~PDQ_ALLMULTI;
272 #if defined(IFF_ALLMULTI)
273 PDQ_IFNET(sc)->if_flags &= ~IFF_ALLMULTI;
276 IF_ADDR_LOCK(PDQ_IFNET(sc));
277 for (ifma = TAILQ_FIRST(&PDQ_IFNET(sc)->if_multiaddrs); ifma && num_addrs > 0;
278 ifma = TAILQ_NEXT(ifma, ifma_link)) {
280 if (ifma->ifma_addr->sa_family != AF_LINK)
282 mcaddr = LLADDR((struct sockaddr_dl *)ifma->ifma_addr);
283 ((u_short *) addr->lanaddr_bytes)[0] = ((u_short *) mcaddr)[0];
284 ((u_short *) addr->lanaddr_bytes)[1] = ((u_short *) mcaddr)[1];
285 ((u_short *) addr->lanaddr_bytes)[2] = ((u_short *) mcaddr)[2];
289 IF_ADDR_UNLOCK(PDQ_IFNET(sc));
291 * If not all the address fit into the CAM, turn on all-multicast mode.
294 pdq->pdq_flags |= PDQ_ALLMULTI;
295 #if defined(IFF_ALLMULTI)
296 PDQ_IFNET(sc)->if_flags |= IFF_ALLMULTI;
301 #if defined(IFM_FDDI)
306 pdq_softc_t * const sc = PDQ_OS_IFP_TO_SOFTC(ifp);
308 if (sc->sc_ifmedia.ifm_media & IFM_FDX) {
309 if ((sc->sc_pdq->pdq_flags & PDQ_WANT_FDX) == 0) {
310 sc->sc_pdq->pdq_flags |= PDQ_WANT_FDX;
311 if (sc->sc_pdq->pdq_flags & PDQ_RUNNING)
314 } else if (sc->sc_pdq->pdq_flags & PDQ_WANT_FDX) {
315 sc->sc_pdq->pdq_flags &= ~PDQ_WANT_FDX;
316 if (sc->sc_pdq->pdq_flags & PDQ_RUNNING)
326 struct ifmediareq *ifmr)
328 pdq_softc_t * const sc = PDQ_OS_IFP_TO_SOFTC(ifp);
330 ifmr->ifm_status = IFM_AVALID;
331 if (sc->sc_pdq->pdq_flags & PDQ_IS_ONRING)
332 ifmr->ifm_status |= IFM_ACTIVE;
334 ifmr->ifm_active = (ifmr->ifm_current & ~IFM_FDX);
335 if (sc->sc_pdq->pdq_flags & PDQ_IS_FDX)
336 ifmr->ifm_active |= IFM_FDX;
340 pdq_os_update_status(
344 pdq_softc_t * const sc = pdq->pdq_os_ctx;
345 const pdq_response_status_chars_get_t *rsp = arg;
348 switch (rsp->status_chars_get.pmd_type[0]) {
349 case PDQ_PMD_TYPE_ANSI_MUTLI_MODE: media = IFM_FDDI_MMF; break;
350 case PDQ_PMD_TYPE_ANSI_SINGLE_MODE_TYPE_1: media = IFM_FDDI_SMF; break;
351 case PDQ_PMD_TYPE_ANSI_SIGNLE_MODE_TYPE_2: media = IFM_FDDI_SMF; break;
352 case PDQ_PMD_TYPE_UNSHIELDED_TWISTED_PAIR: media = IFM_FDDI_UTP; break;
353 default: media |= IFM_MANUAL;
356 if (rsp->status_chars_get.station_type == PDQ_STATION_TYPE_DAS)
357 media |= IFM_FDDI_DA;
359 sc->sc_ifmedia.ifm_media = media | IFM_FDDI;
361 #endif /* defined(IFM_FDDI) */
369 pdq_softc_t *sc = PDQ_OS_IFP_TO_SOFTC(ifp);
382 if (PDQ_IFNET(sc)->if_drv_flags & IFF_DRV_RUNNING) {
389 #if defined(IFM_FDDI) && defined(SIOCSIFMEDIA)
392 struct ifreq *ifr = (struct ifreq *)data;
393 error = ifmedia_ioctl(ifp, ifr, &sc->sc_ifmedia, cmd);
399 error = fddi_ioctl(ifp, cmd, data);
408 #ifndef IFF_NOTRAILERS
409 #define IFF_NOTRAILERS 0
413 pdq_ifattach(pdq_softc_t *sc, const pdq_uint8_t *llc)
417 ifp = PDQ_IFNET(sc) = if_alloc(IFT_FDDI);
419 panic("%s: can not if_alloc()", device_get_nameunit(sc->dev));
421 mtx_init(&sc->mtx, device_get_nameunit(sc->dev), MTX_NETWORK_LOCK,
422 MTX_DEF | MTX_RECURSE);
425 ifp->if_init = (if_init_f_t *)pdq_ifinit;
426 ifp->if_snd.ifq_maxlen = IFQ_MAXLEN;
427 ifp->if_flags = IFF_BROADCAST|IFF_SIMPLEX|IFF_NOTRAILERS|IFF_MULTICAST;
429 ifp->if_watchdog = pdq_ifwatchdog;
431 ifp->if_ioctl = pdq_ifioctl;
432 ifp->if_start = pdq_ifstart;
434 #if defined(IFM_FDDI)
436 const int media = sc->sc_ifmedia.ifm_media;
437 ifmedia_init(&sc->sc_ifmedia, IFM_FDX,
438 pdq_ifmedia_change, pdq_ifmedia_status);
439 ifmedia_add(&sc->sc_ifmedia, media, 0, 0);
440 ifmedia_set(&sc->sc_ifmedia, media);
444 fddi_ifattach(ifp, llc, FDDI_BPF_SUPPORTED);
448 pdq_ifdetach (pdq_softc_t *sc)
454 fddi_ifdetach(ifp, FDDI_BPF_SUPPORTED);
456 pdq_stop(sc->sc_pdq);
463 pdq_free (device_t dev)
467 sc = device_get_softc(dev);
470 bus_release_resource(dev, sc->io_type, sc->io_rid, sc->io);
472 bus_release_resource(dev, sc->mem_type, sc->mem_rid, sc->mem);
474 bus_teardown_intr(dev, sc->irq, sc->irq_ih);
476 bus_release_resource(dev, SYS_RES_IRQ, sc->irq_rid, sc->irq);
481 if (mtx_initialized(&sc->mtx) != 0) {
482 mtx_destroy(&sc->mtx);
488 #if defined(PDQ_BUS_DMA)
490 pdq_os_memalloc_contig(
493 pdq_softc_t * const sc = pdq->pdq_os_ctx;
494 bus_dma_segment_t db_segs[1], ui_segs[1], cb_segs[1];
495 int db_nsegs = 0, ui_nsegs = 0;
499 not_ok = bus_dmamem_alloc(sc->sc_dmatag,
500 sizeof(*pdq->pdq_dbp), sizeof(*pdq->pdq_dbp),
501 sizeof(*pdq->pdq_dbp), db_segs, 1, &db_nsegs,
505 not_ok = bus_dmamem_map(sc->sc_dmatag, db_segs, db_nsegs,
506 sizeof(*pdq->pdq_dbp), (caddr_t *) &pdq->pdq_dbp,
511 not_ok = bus_dmamap_create(sc->sc_dmatag, db_segs[0].ds_len, 1,
512 0x2000, 0, BUS_DMA_NOWAIT, &sc->sc_dbmap);
516 not_ok = bus_dmamap_load(sc->sc_dmatag, sc->sc_dbmap,
517 pdq->pdq_dbp, sizeof(*pdq->pdq_dbp),
518 NULL, BUS_DMA_NOWAIT);
522 pdq->pdq_pa_descriptor_block = sc->sc_dbmap->dm_segs[0].ds_addr;
523 not_ok = bus_dmamem_alloc(sc->sc_dmatag,
524 PDQ_OS_PAGESIZE, PDQ_OS_PAGESIZE, PDQ_OS_PAGESIZE,
525 ui_segs, 1, &ui_nsegs, BUS_DMA_NOWAIT);
529 not_ok = bus_dmamem_map(sc->sc_dmatag, ui_segs, ui_nsegs,
531 (caddr_t *) &pdq->pdq_unsolicited_info.ui_events,
536 not_ok = bus_dmamap_create(sc->sc_dmatag, ui_segs[0].ds_len, 1,
537 PDQ_OS_PAGESIZE, 0, BUS_DMA_NOWAIT,
542 not_ok = bus_dmamap_load(sc->sc_dmatag, sc->sc_uimap,
543 pdq->pdq_unsolicited_info.ui_events,
544 PDQ_OS_PAGESIZE, NULL, BUS_DMA_NOWAIT);
548 pdq->pdq_unsolicited_info.ui_pa_bufstart = sc->sc_uimap->dm_segs[0].ds_addr;
549 cb_segs[0] = db_segs[0];
550 cb_segs[0].ds_addr += offsetof(pdq_descriptor_block_t, pdqdb_consumer);
551 cb_segs[0].ds_len = sizeof(pdq_consumer_block_t);
552 not_ok = bus_dmamem_map(sc->sc_dmatag, cb_segs, 1,
553 sizeof(*pdq->pdq_cbp), (caddr_t *) &pdq->pdq_cbp,
554 BUS_DMA_NOWAIT|BUS_DMA_COHERENT);
558 not_ok = bus_dmamap_create(sc->sc_dmatag, cb_segs[0].ds_len, 1,
559 0x2000, 0, BUS_DMA_NOWAIT, &sc->sc_cbmap);
563 not_ok = bus_dmamap_load(sc->sc_dmatag, sc->sc_cbmap,
564 (caddr_t) pdq->pdq_cbp, sizeof(*pdq->pdq_cbp),
565 NULL, BUS_DMA_NOWAIT);
568 pdq->pdq_pa_consumer_block = sc->sc_cbmap->dm_segs[0].ds_addr;
574 bus_dmamap_unload(sc->sc_dmatag, sc->sc_cbmap);
578 bus_dmamap_destroy(sc->sc_dmatag, sc->sc_cbmap);
582 bus_dmamem_unmap(sc->sc_dmatag,
583 (caddr_t) pdq->pdq_cbp, sizeof(*pdq->pdq_cbp));
587 bus_dmamap_unload(sc->sc_dmatag, sc->sc_uimap);
591 bus_dmamap_destroy(sc->sc_dmatag, sc->sc_uimap);
595 bus_dmamem_unmap(sc->sc_dmatag,
596 (caddr_t) pdq->pdq_unsolicited_info.ui_events,
601 bus_dmamem_free(sc->sc_dmatag, ui_segs, ui_nsegs);
605 bus_dmamap_unload(sc->sc_dmatag, sc->sc_dbmap);
609 bus_dmamap_destroy(sc->sc_dmatag, sc->sc_dbmap);
613 bus_dmamem_unmap(sc->sc_dmatag,
614 (caddr_t) pdq->pdq_dbp,
615 sizeof(*pdq->pdq_dbp));
619 bus_dmamem_free(sc->sc_dmatag, db_segs, db_nsegs);
628 pdq_os_descriptor_block_sync(
634 bus_dmamap_sync(sc->sc_dmatag, sc->sc_dbmap, offset, length, ops);
638 pdq_os_consumer_block_sync(
642 bus_dmamap_sync(sc->sc_dmatag, sc->sc_cbmap, 0, sizeof(pdq_consumer_block_t), ops);
646 pdq_os_unsolicited_event_sync(
652 bus_dmamap_sync(sc->sc_dmatag, sc->sc_uimap, offset, length, ops);
663 bus_dmamap_sync(sc->sc_dmatag, M_GETCTX(m, bus_dmamap_t), offset, length, ops);
671 if (m->m_flags & (M_HASRXDMAMAP|M_HASTXDMAMAP)) {
672 bus_dmamap_t map = M_GETCTX(m, bus_dmamap_t);
673 bus_dmamap_unload(sc->sc_dmatag, map);
674 bus_dmamap_destroy(sc->sc_dmatag, map);
675 m->m_flags &= ~(M_HASRXDMAMAP|M_HASTXDMAMAP);
681 pdq_os_databuf_alloc(
687 MGETHDR(m, M_DONTWAIT, MT_DATA);
689 printf("%s: can't alloc small buf\n", sc->sc_dev.dv_xname);
692 MCLGET(m, M_DONTWAIT);
693 if ((m->m_flags & M_EXT) == 0) {
694 printf("%s: can't alloc cluster\n", sc->sc_dev.dv_xname);
698 m->m_pkthdr.len = m->m_len = PDQ_OS_DATABUF_SIZE;
700 if (bus_dmamap_create(sc->sc_dmatag, PDQ_OS_DATABUF_SIZE,
701 1, PDQ_OS_DATABUF_SIZE, 0, BUS_DMA_NOWAIT, &map)) {
702 printf("%s: can't create dmamap\n", sc->sc_dev.dv_xname);
706 if (bus_dmamap_load_mbuf(sc->sc_dmatag, map, m,
707 BUS_DMA_READ|BUS_DMA_NOWAIT)) {
708 printf("%s: can't load dmamap\n", sc->sc_dev.dv_xname);
709 bus_dmamap_destroy(sc->sc_dmatag, map);
713 m->m_flags |= M_HASRXDMAMAP;