Source-Changes-HG archive
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Old Index]
[src/trunk]: src/sys Driver for Sun GEM gigabit ethernet, Sun ERI 10/100, and...
details: https://anonhg.NetBSD.org/src/rev/958b1347654a
branches: trunk
changeset: 515021:958b1347654a
user: eeh <eeh%NetBSD.org@localhost>
date: Sun Sep 16 00:11:41 2001 +0000
description:
Driver for Sun GEM gigabit ethernet, Sun ERI 10/100, and Apple GMAC.
diffstat:
sys/conf/files | 6 +-
sys/dev/ic/gem.c | 2033 ++++++++++++++++++++++++++++++++++++++++++++++
sys/dev/ic/gemreg.h | 533 ++++++++++++
sys/dev/ic/gemvar.h | 321 +++++++
sys/dev/pci/files.pci | 6 +-
sys/dev/pci/if_gem_pci.c | 189 ++++
6 files changed, 3086 insertions(+), 2 deletions(-)
diffs (truncated from 3132 to 300 lines):
diff -r bd79fe253488 -r 958b1347654a sys/conf/files
--- a/sys/conf/files Sun Sep 16 00:01:15 2001 +0000
+++ b/sys/conf/files Sun Sep 16 00:11:41 2001 +0000
@@ -1,4 +1,4 @@
-# $NetBSD: files,v 1.460 2001/09/15 20:36:35 chs Exp $
+# $NetBSD: files,v 1.461 2001/09/16 00:11:41 eeh Exp $
# @(#)files.newconf 7.5 (Berkeley) 5/10/93
@@ -365,6 +365,10 @@
device hme: arp, ether, ifnet, mii
file dev/ic/hme.c hme
+# Sun GEM Ethernet controllers
+device gem: arp, ether, ifnet, mii
+file dev/ic/gem.c gem
+
# 8390-family Ethernet controllers
defopt opt_ipkdb.h IPKDB_DP8390 : IPKDB
define dp8390nic
diff -r bd79fe253488 -r 958b1347654a sys/dev/ic/gem.c
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/sys/dev/ic/gem.c Sun Sep 16 00:11:41 2001 +0000
@@ -0,0 +1,2033 @@
+/* $NetBSD: gem.c,v 1.1 2001/09/16 00:11:43 eeh Exp $ */
+
+/*
+ *
+ * Copyright (C) 2001 Eduardo Horvath.
+ * All rights reserved.
+ *
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ */
+
+/*
+ * Driver for Sun GEM ethernet controllers.
+ */
+
+#define GEM_DEBUG
+int gem_opdebug = 0;
+
+#include "bpfilter.h"
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/callout.h>
+#include <sys/mbuf.h>
+#include <sys/syslog.h>
+#include <sys/malloc.h>
+#include <sys/kernel.h>
+#include <sys/socket.h>
+#include <sys/ioctl.h>
+#include <sys/errno.h>
+#include <sys/device.h>
+
+#include <machine/endian.h>
+
+#include <uvm/uvm_extern.h>
+
+#include <net/if.h>
+#include <net/if_dl.h>
+#include <net/if_media.h>
+#include <net/if_ether.h>
+
+#if NBPFILTER > 0
+#include <net/bpf.h>
+#endif
+
+#include <machine/bus.h>
+#include <machine/intr.h>
+
+#include <dev/mii/mii.h>
+#include <dev/mii/miivar.h>
+#include <dev/mii/mii_bitbang.h>
+
+#include <dev/ic/gemreg.h>
+#include <dev/ic/gemvar.h>
+
+#define TRIES 10000
+
+void gem_start __P((struct ifnet *));
+void gem_stop __P((struct ifnet *, int));
+int gem_ioctl __P((struct ifnet *, u_long, caddr_t));
+void gem_tick __P((void *));
+void gem_watchdog __P((struct ifnet *));
+void gem_shutdown __P((void *));
+int gem_init __P((struct ifnet *));
+void gem_init_regs(struct gem_softc *sc);
+static int gem_ringsize(int sz);
+int gem_meminit __P((struct gem_softc *));
+void gem_mifinit __P((struct gem_softc *));
+void gem_reset __P((struct gem_softc *));
+int gem_reset_rx(struct gem_softc *sc);
+int gem_reset_tx(struct gem_softc *sc);
+int gem_disable_rx(struct gem_softc *sc);
+int gem_disable_tx(struct gem_softc *sc);
+void gem_rxdrain(struct gem_softc *sc);
+int gem_add_rxbuf(struct gem_softc *sc, int idx);
+void gem_setladrf __P((struct gem_softc *));
+
+/* MII methods & callbacks */
+static int gem_mii_readreg __P((struct device *, int, int));
+static void gem_mii_writereg __P((struct device *, int, int, int));
+static void gem_mii_statchg __P((struct device *));
+
+int gem_mediachange __P((struct ifnet *));
+void gem_mediastatus __P((struct ifnet *, struct ifmediareq *));
+
+struct mbuf *gem_get __P((struct gem_softc *, int, int));
+int gem_put __P((struct gem_softc *, int, struct mbuf *));
+void gem_read __P((struct gem_softc *, int, int));
+int gem_eint __P((struct gem_softc *, u_int));
+int gem_rint __P((struct gem_softc *));
+int gem_tint __P((struct gem_softc *));
+void gem_power __P((int, void *));
+
+static int ether_cmp __P((u_char *, u_char *));
+
+/* Default buffer copy routines */
+void gem_copytobuf_contig __P((struct gem_softc *, void *, int, int));
+void gem_copyfrombuf_contig __P((struct gem_softc *, void *, int, int));
+void gem_zerobuf_contig __P((struct gem_softc *, int, int));
+
+
+#ifdef GEM_DEBUG
+#define DPRINTF(sc, x) if ((sc)->sc_ethercom.ec_if.if_flags & IFF_DEBUG) \
+ printf x
+#else
+#define DPRINTF(sc, x) /* nothing */
+#endif
+
+
+/*
+ * gem_config:
+ *
+ * Attach a Gem interface to the system.
+ */
+void
+gem_config(sc)
+ struct gem_softc *sc;
+{
+ struct ifnet *ifp = &sc->sc_ethercom.ec_if;
+ struct mii_data *mii = &sc->sc_mii;
+ struct mii_softc *child;
+ int i, error;
+
+ /* Make sure the chip is stopped. */
+ ifp->if_softc = sc;
+ gem_reset(sc);
+
+ /*
+ * Allocate the control data structures, and create and load the
+ * DMA map for it.
+ */
+ if ((error = bus_dmamem_alloc(sc->sc_dmatag,
+ sizeof(struct gem_control_data), PAGE_SIZE, 0, &sc->sc_cdseg,
+ 1, &sc->sc_cdnseg, 0)) != 0) {
+ printf("%s: unable to allocate control data, error = %d\n",
+ sc->sc_dev.dv_xname, error);
+ goto fail_0;
+ }
+
+/* XXX should map this in with correct endianness */
+ if ((error = bus_dmamem_map(sc->sc_dmatag, &sc->sc_cdseg, sc->sc_cdnseg,
+ sizeof(struct gem_control_data), (caddr_t *)&sc->sc_control_data,
+ BUS_DMA_COHERENT)) != 0) {
+ printf("%s: unable to map control data, error = %d\n",
+ sc->sc_dev.dv_xname, error);
+ goto fail_1;
+ }
+
+ if ((error = bus_dmamap_create(sc->sc_dmatag,
+ sizeof(struct gem_control_data), 1,
+ sizeof(struct gem_control_data), 0, 0, &sc->sc_cddmamap)) != 0) {
+ printf("%s: unable to create control data DMA map, "
+ "error = %d\n", sc->sc_dev.dv_xname, error);
+ goto fail_2;
+ }
+
+ if ((error = bus_dmamap_load(sc->sc_dmatag, sc->sc_cddmamap,
+ sc->sc_control_data, sizeof(struct gem_control_data), NULL,
+ 0)) != 0) {
+ printf("%s: unable to load control data DMA map, error = %d\n",
+ sc->sc_dev.dv_xname, error);
+ goto fail_3;
+ }
+
+ /*
+ * Initialize the transmit job descriptors.
+ */
+ SIMPLEQ_INIT(&sc->sc_txfreeq);
+ SIMPLEQ_INIT(&sc->sc_txdirtyq);
+
+ /*
+ * Create the transmit buffer DMA maps.
+ */
+ for (i = 0; i < GEM_TXQUEUELEN; i++) {
+ struct gem_txsoft *txs;
+
+ txs = &sc->sc_txsoft[i];
+ txs->txs_mbuf = NULL;
+ if ((error = bus_dmamap_create(sc->sc_dmatag, MCLBYTES,
+ GEM_NTXSEGS, MCLBYTES, 0, 0,
+ &txs->txs_dmamap)) != 0) {
+ printf("%s: unable to create tx DMA map %d, "
+ "error = %d\n", sc->sc_dev.dv_xname, i, error);
+ goto fail_4;
+ }
+ SIMPLEQ_INSERT_TAIL(&sc->sc_txfreeq, txs, txs_q);
+ }
+
+ /*
+ * Create the receive buffer DMA maps.
+ */
+ for (i = 0; i < GEM_NRXDESC; i++) {
+ if ((error = bus_dmamap_create(sc->sc_dmatag, MCLBYTES, 1,
+ MCLBYTES, 0, 0, &sc->sc_rxsoft[i].rxs_dmamap)) != 0) {
+ printf("%s: unable to create rx DMA map %d, "
+ "error = %d\n", sc->sc_dev.dv_xname, i, error);
+ goto fail_5;
+ }
+ sc->sc_rxsoft[i].rxs_mbuf = NULL;
+ }
+
+ /*
+ * From this point forward, the attachment cannot fail. A failure
+ * before this point releases all resources that may have been
+ * allocated.
+ */
+ sc->sc_flags |= GEMF_ATTACHED;
+
+ /* Announce ourselves. */
+ printf("%s: Ethernet address %s\n", sc->sc_dev.dv_xname,
+ ether_sprintf(sc->sc_enaddr));
+
+ /* Initialize ifnet structure. */
+ strcpy(ifp->if_xname, sc->sc_dev.dv_xname);
+ ifp->if_softc = sc;
+ ifp->if_flags =
+ IFF_BROADCAST | IFF_SIMPLEX | IFF_NOTRAILERS | IFF_MULTICAST;
+ ifp->if_start = gem_start;
+ ifp->if_ioctl = gem_ioctl;
+ ifp->if_watchdog = gem_watchdog;
+ ifp->if_stop = gem_stop;
+ ifp->if_init = gem_init;
+ IFQ_SET_READY(&ifp->if_snd);
+
+ /* Initialize ifmedia structures and MII info */
+ mii->mii_ifp = ifp;
+ mii->mii_readreg = gem_mii_readreg;
+ mii->mii_writereg = gem_mii_writereg;
+ mii->mii_statchg = gem_mii_statchg;
+
+ ifmedia_init(&mii->mii_media, 0, gem_mediachange, gem_mediastatus);
+
+ gem_mifinit(sc);
+
+ mii_attach(&sc->sc_dev, mii, 0xffffffff,
+ MII_PHY_ANY, MII_OFFSET_ANY, 0);
+
+ child = LIST_FIRST(&mii->mii_phys);
+ if (child == NULL) {
+ /* No PHY attached */
+ ifmedia_add(&sc->sc_media, IFM_ETHER|IFM_MANUAL, 0, NULL);
+ ifmedia_set(&sc->sc_media, IFM_ETHER|IFM_MANUAL);
+ } else {
+ /*
+ * Walk along the list of attached MII devices and
+ * establish an `MII instance' to `phy number'
+ * mapping. We'll use this mapping in media change
+ * requests to determine which phy to use to program
+ * the MIF configuration register.
+ */
+ for (; child != NULL; child = LIST_NEXT(child, mii_list)) {
+ /*
+ * Note: we support just two PHYs: the built-in
+ * internal device and an external on the MII
+ * connector.
+ */
Home |
Main Index |
Thread Index |
Old Index