a31f50a3fb
unlike documented may not take effect without an initialization. So don't invoke (*sc_mediachange) directly in lance_mediachange() but go through lance_init_locked(). It's suboptimal to impose this for all chips but given that besides the affected PCI bus front-end the only other front-end which supports media selection is and likely ever will be the 'ledma' front-end I see not enough reason to break the in-driver API for this (though one could argue both ways here).
824 lines
19 KiB
C
824 lines
19 KiB
C
/* $NetBSD: lance.c,v 1.34 2005/12/24 20:27:30 perry Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 1997, 1998 The NetBSD Foundation, Inc.
|
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* All rights reserved.
|
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*
|
|
* This code is derived from software contributed to The NetBSD Foundation
|
|
* by Charles M. Hannum and by Jason R. Thorpe of the Numerical Aerospace
|
|
* Simulation Facility, NASA Ames Research Center.
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*
|
|
* 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.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the NetBSD
|
|
* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
|
|
* contributors may be used to endorse or promote products derived
|
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* from this software without specific prior written permission.
|
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
|
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* ``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 FOUNDATION OR CONTRIBUTORS
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* 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
|
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
* POSSIBILITY OF SUCH DAMAGE.
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*/
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|
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/*-
|
|
* Copyright (c) 1992, 1993
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* The Regents of the University of California. All rights reserved.
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*
|
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* This code is derived from software contributed to Berkeley by
|
|
* Ralph Campbell and Rick Macklem.
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*
|
|
* 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.
|
|
* 3. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
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* SUCH DAMAGE.
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*
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* @(#)if_le.c 8.2 (Berkeley) 11/16/93
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*/
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#include <sys/cdefs.h>
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|
__FBSDID("$FreeBSD$");
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|
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#include <sys/param.h>
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|
#include <sys/bus.h>
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|
#include <sys/endian.h>
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|
#include <sys/lock.h>
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|
#include <sys/kernel.h>
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|
#include <sys/mbuf.h>
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|
#include <sys/mutex.h>
|
|
#include <sys/socket.h>
|
|
#include <sys/sockio.h>
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|
|
|
#include <net/ethernet.h>
|
|
#include <net/if.h>
|
|
#include <net/if_arp.h>
|
|
#include <net/if_dl.h>
|
|
#include <net/if_media.h>
|
|
#include <net/if_types.h>
|
|
#include <net/if_vlan_var.h>
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|
|
|
#include <machine/bus.h>
|
|
|
|
#include <dev/le/lancereg.h>
|
|
#include <dev/le/lancevar.h>
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|
|
|
devclass_t le_devclass;
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|
|
|
static void lance_start(struct ifnet *);
|
|
static void lance_stop(struct lance_softc *);
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|
static void lance_init(void *);
|
|
static void lance_watchdog(void *s);
|
|
static int lance_mediachange(struct ifnet *);
|
|
static void lance_mediastatus(struct ifnet *, struct ifmediareq *);
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|
static int lance_ioctl(struct ifnet *, u_long, caddr_t);
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|
|
|
int
|
|
lance_config(struct lance_softc *sc, const char* name, int unit)
|
|
{
|
|
struct ifnet *ifp;
|
|
int i, nbuf;
|
|
|
|
if (LE_LOCK_INITIALIZED(sc) == 0)
|
|
return (ENXIO);
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|
|
|
ifp = sc->sc_ifp = if_alloc(IFT_ETHER);
|
|
if (ifp == NULL)
|
|
return (ENOSPC);
|
|
|
|
callout_init_mtx(&sc->sc_wdog_ch, &sc->sc_mtx, 0);
|
|
|
|
/* Initialize ifnet structure. */
|
|
ifp->if_softc = sc;
|
|
if_initname(ifp, name, unit);
|
|
ifp->if_start = lance_start;
|
|
ifp->if_ioctl = lance_ioctl;
|
|
ifp->if_init = lance_init;
|
|
ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
|
|
#ifdef LANCE_REVC_BUG
|
|
ifp->if_flags &= ~IFF_MULTICAST;
|
|
#endif
|
|
ifp->if_baudrate = IF_Mbps(10);
|
|
IFQ_SET_MAXLEN(&ifp->if_snd, IFQ_MAXLEN);
|
|
ifp->if_snd.ifq_drv_maxlen = IFQ_MAXLEN;
|
|
IFQ_SET_READY(&ifp->if_snd);
|
|
|
|
/* Initialize ifmedia structures. */
|
|
ifmedia_init(&sc->sc_media, 0, lance_mediachange, lance_mediastatus);
|
|
if (sc->sc_supmedia != NULL) {
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for (i = 0; i < sc->sc_nsupmedia; i++)
|
|
ifmedia_add(&sc->sc_media, sc->sc_supmedia[i], 0, NULL);
|
|
ifmedia_set(&sc->sc_media, sc->sc_defaultmedia);
|
|
} else {
|
|
ifmedia_add(&sc->sc_media,
|
|
IFM_MAKEWORD(IFM_ETHER, IFM_MANUAL, 0, 0), 0, NULL);
|
|
ifmedia_set(&sc->sc_media,
|
|
IFM_MAKEWORD(IFM_ETHER, IFM_MANUAL, 0, 0));
|
|
}
|
|
|
|
switch (sc->sc_memsize) {
|
|
case 8192:
|
|
sc->sc_nrbuf = 4;
|
|
sc->sc_ntbuf = 1;
|
|
break;
|
|
case 16384:
|
|
sc->sc_nrbuf = 8;
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|
sc->sc_ntbuf = 2;
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|
break;
|
|
case 32768:
|
|
sc->sc_nrbuf = 16;
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|
sc->sc_ntbuf = 4;
|
|
break;
|
|
case 65536:
|
|
sc->sc_nrbuf = 32;
|
|
sc->sc_ntbuf = 8;
|
|
break;
|
|
case 131072:
|
|
sc->sc_nrbuf = 64;
|
|
sc->sc_ntbuf = 16;
|
|
break;
|
|
case 262144:
|
|
sc->sc_nrbuf = 128;
|
|
sc->sc_ntbuf = 32;
|
|
break;
|
|
default:
|
|
/* weird memory size; cope with it */
|
|
nbuf = sc->sc_memsize / LEBLEN;
|
|
sc->sc_ntbuf = nbuf / 5;
|
|
sc->sc_nrbuf = nbuf - sc->sc_ntbuf;
|
|
}
|
|
|
|
if_printf(ifp, "%d receive buffers, %d transmit buffers\n",
|
|
sc->sc_nrbuf, sc->sc_ntbuf);
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|
|
|
/* Make sure the chip is stopped. */
|
|
LE_LOCK(sc);
|
|
lance_stop(sc);
|
|
LE_UNLOCK(sc);
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|
|
|
return (0);
|
|
}
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|
|
|
void
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|
lance_attach(struct lance_softc *sc)
|
|
{
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|
struct ifnet *ifp = sc->sc_ifp;
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|
|
|
/* Attach the interface. */
|
|
ether_ifattach(ifp, sc->sc_enaddr);
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|
|
|
/* Claim 802.1q capability. */
|
|
ifp->if_data.ifi_hdrlen = sizeof(struct ether_vlan_header);
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|
ifp->if_capabilities |= IFCAP_VLAN_MTU;
|
|
ifp->if_capenable |= IFCAP_VLAN_MTU;
|
|
}
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|
|
|
void
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lance_detach(struct lance_softc *sc)
|
|
{
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|
struct ifnet *ifp = sc->sc_ifp;
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|
LE_LOCK(sc);
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|
lance_stop(sc);
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|
LE_UNLOCK(sc);
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|
callout_drain(&sc->sc_wdog_ch);
|
|
ether_ifdetach(ifp);
|
|
if_free(ifp);
|
|
}
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|
|
|
void
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|
lance_suspend(struct lance_softc *sc)
|
|
{
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|
|
|
LE_LOCK(sc);
|
|
lance_stop(sc);
|
|
LE_UNLOCK(sc);
|
|
}
|
|
|
|
void
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|
lance_resume(struct lance_softc *sc)
|
|
{
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|
|
|
LE_LOCK(sc);
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|
if (sc->sc_ifp->if_flags & IFF_UP)
|
|
lance_init_locked(sc);
|
|
LE_UNLOCK(sc);
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|
}
|
|
|
|
static void
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|
lance_start(struct ifnet *ifp)
|
|
{
|
|
struct lance_softc *sc = ifp->if_softc;
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|
|
LE_LOCK(sc);
|
|
(*sc->sc_start_locked)(sc);
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|
LE_UNLOCK(sc);
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|
}
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|
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static void
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lance_stop(struct lance_softc *sc)
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|
{
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|
struct ifnet *ifp = sc->sc_ifp;
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|
LE_LOCK_ASSERT(sc, MA_OWNED);
|
|
|
|
/*
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|
* Mark the interface down and cancel the watchdog timer.
|
|
*/
|
|
ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE);
|
|
callout_stop(&sc->sc_wdog_ch);
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|
sc->sc_wdog_timer = 0;
|
|
|
|
(*sc->sc_wrcsr)(sc, LE_CSR0, LE_C0_STOP);
|
|
}
|
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|
|
static void
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|
lance_init(void *xsc)
|
|
{
|
|
struct lance_softc *sc = (struct lance_softc *)xsc;
|
|
|
|
LE_LOCK(sc);
|
|
lance_init_locked(sc);
|
|
LE_UNLOCK(sc);
|
|
}
|
|
|
|
/*
|
|
* Initialization of interface; set up initialization block
|
|
* and transmit/receive descriptor rings.
|
|
*/
|
|
void
|
|
lance_init_locked(struct lance_softc *sc)
|
|
{
|
|
struct ifnet *ifp = sc->sc_ifp;
|
|
u_long a;
|
|
int timo;
|
|
|
|
LE_LOCK_ASSERT(sc, MA_OWNED);
|
|
|
|
(*sc->sc_wrcsr)(sc, LE_CSR0, LE_C0_STOP);
|
|
DELAY(100);
|
|
|
|
/* Newer LANCE chips have a reset register. */
|
|
if (sc->sc_hwreset)
|
|
(*sc->sc_hwreset)(sc);
|
|
|
|
/* Set the correct byte swapping mode, etc. */
|
|
(*sc->sc_wrcsr)(sc, LE_CSR3, sc->sc_conf3);
|
|
|
|
/* Set the current media. This may require the chip to be stopped. */
|
|
if (sc->sc_mediachange)
|
|
(void)(*sc->sc_mediachange)(sc);
|
|
|
|
/*
|
|
* Update our private copy of the Ethernet address.
|
|
* We NEED the copy so we can ensure its alignment!
|
|
*/
|
|
memcpy(sc->sc_enaddr, IF_LLADDR(ifp), ETHER_ADDR_LEN);
|
|
|
|
/* Set up LANCE init block. */
|
|
(*sc->sc_meminit)(sc);
|
|
|
|
/* Give LANCE the physical address of its init block. */
|
|
a = sc->sc_addr + LE_INITADDR(sc);
|
|
(*sc->sc_wrcsr)(sc, LE_CSR1, a & 0xffff);
|
|
(*sc->sc_wrcsr)(sc, LE_CSR2, a >> 16);
|
|
|
|
/* Try to initialize the LANCE. */
|
|
DELAY(100);
|
|
(*sc->sc_wrcsr)(sc, LE_CSR0, LE_C0_INIT);
|
|
|
|
/* Wait for initialization to finish. */
|
|
for (timo = 100000; timo; timo--)
|
|
if ((*sc->sc_rdcsr)(sc, LE_CSR0) & LE_C0_IDON)
|
|
break;
|
|
|
|
if ((*sc->sc_rdcsr)(sc, LE_CSR0) & LE_C0_IDON) {
|
|
/* Start the LANCE. */
|
|
(*sc->sc_wrcsr)(sc, LE_CSR0, LE_C0_INEA | LE_C0_STRT);
|
|
ifp->if_drv_flags |= IFF_DRV_RUNNING;
|
|
ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
|
|
sc->sc_wdog_timer = 0;
|
|
callout_reset(&sc->sc_wdog_ch, hz, lance_watchdog, sc);
|
|
(*sc->sc_start_locked)(sc);
|
|
} else
|
|
if_printf(ifp, "controller failed to initialize\n");
|
|
|
|
if (sc->sc_hwinit)
|
|
(*sc->sc_hwinit)(sc);
|
|
}
|
|
|
|
/*
|
|
* Routine to copy from mbuf chain to transmit buffer in
|
|
* network buffer memory.
|
|
*/
|
|
int
|
|
lance_put(struct lance_softc *sc, int boff, struct mbuf *m)
|
|
{
|
|
struct mbuf *n;
|
|
int len, tlen = 0;
|
|
|
|
LE_LOCK_ASSERT(sc, MA_OWNED);
|
|
|
|
for (; m; m = n) {
|
|
len = m->m_len;
|
|
if (len == 0) {
|
|
n = m_free(m);
|
|
m = NULL;
|
|
continue;
|
|
}
|
|
(*sc->sc_copytobuf)(sc, mtod(m, caddr_t), boff, len);
|
|
boff += len;
|
|
tlen += len;
|
|
n = m_free(m);
|
|
m = NULL;
|
|
}
|
|
if (tlen < LEMINSIZE) {
|
|
(*sc->sc_zerobuf)(sc, boff, LEMINSIZE - tlen);
|
|
tlen = LEMINSIZE;
|
|
}
|
|
return (tlen);
|
|
}
|
|
|
|
/*
|
|
* Pull data off an interface.
|
|
* Len is length of data, with local net header stripped.
|
|
* We copy the data into mbufs. When full cluster sized units are present
|
|
* we copy into clusters.
|
|
*/
|
|
struct mbuf *
|
|
lance_get(struct lance_softc *sc, int boff, int totlen)
|
|
{
|
|
struct ifnet *ifp = sc->sc_ifp;
|
|
struct mbuf *m, *m0, *newm;
|
|
caddr_t newdata;
|
|
int len;
|
|
|
|
if (totlen <= ETHER_HDR_LEN || totlen > LEBLEN - ETHER_CRC_LEN) {
|
|
#ifdef LEDEBUG
|
|
if_printf(ifp, "invalid packet size %d; dropping\n", totlen);
|
|
#endif
|
|
return (NULL);
|
|
}
|
|
|
|
MGETHDR(m0, M_DONTWAIT, MT_DATA);
|
|
if (m0 == NULL)
|
|
return (NULL);
|
|
m0->m_pkthdr.rcvif = ifp;
|
|
m0->m_pkthdr.len = totlen;
|
|
len = MHLEN;
|
|
m = m0;
|
|
|
|
while (totlen > 0) {
|
|
if (totlen >= MINCLSIZE) {
|
|
MCLGET(m, M_DONTWAIT);
|
|
if ((m->m_flags & M_EXT) == 0)
|
|
goto bad;
|
|
len = MCLBYTES;
|
|
}
|
|
|
|
if (m == m0) {
|
|
newdata = (caddr_t)
|
|
ALIGN(m->m_data + ETHER_HDR_LEN) - ETHER_HDR_LEN;
|
|
len -= newdata - m->m_data;
|
|
m->m_data = newdata;
|
|
}
|
|
|
|
m->m_len = len = min(totlen, len);
|
|
(*sc->sc_copyfrombuf)(sc, mtod(m, caddr_t), boff, len);
|
|
boff += len;
|
|
|
|
totlen -= len;
|
|
if (totlen > 0) {
|
|
MGET(newm, M_DONTWAIT, MT_DATA);
|
|
if (newm == 0)
|
|
goto bad;
|
|
len = MLEN;
|
|
m = m->m_next = newm;
|
|
}
|
|
}
|
|
|
|
return (m0);
|
|
|
|
bad:
|
|
m_freem(m0);
|
|
return (NULL);
|
|
}
|
|
|
|
static void
|
|
lance_watchdog(void *xsc)
|
|
{
|
|
struct lance_softc *sc = (struct lance_softc *)xsc;
|
|
struct ifnet *ifp = sc->sc_ifp;
|
|
|
|
LE_LOCK_ASSERT(sc, MA_OWNED);
|
|
|
|
if (sc->sc_wdog_timer == 0 || --sc->sc_wdog_timer != 0) {
|
|
callout_reset(&sc->sc_wdog_ch, hz, lance_watchdog, sc);
|
|
return;
|
|
}
|
|
|
|
if_printf(ifp, "device timeout\n");
|
|
++ifp->if_oerrors;
|
|
lance_init_locked(sc);
|
|
}
|
|
|
|
static int
|
|
lance_mediachange(struct ifnet *ifp)
|
|
{
|
|
struct lance_softc *sc = ifp->if_softc;
|
|
|
|
if (sc->sc_mediachange) {
|
|
/*
|
|
* For setting the port in LE_CSR15 the PCnet chips must
|
|
* be powered down or stopped and unlike documented may
|
|
* not take effect without an initialization. So don't
|
|
* invoke (*sc_mediachange) directly here but go through
|
|
* lance_init_locked().
|
|
*/
|
|
LE_LOCK(sc);
|
|
lance_stop(sc);
|
|
lance_init_locked(sc);
|
|
if (!IFQ_DRV_IS_EMPTY(&ifp->if_snd))
|
|
(*sc->sc_start_locked)(sc);
|
|
LE_UNLOCK(sc);
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
static void
|
|
lance_mediastatus(struct ifnet *ifp, struct ifmediareq *ifmr)
|
|
{
|
|
struct lance_softc *sc = ifp->if_softc;
|
|
|
|
LE_LOCK(sc);
|
|
if (!(ifp->if_flags & IFF_UP)) {
|
|
LE_UNLOCK(sc);
|
|
return;
|
|
}
|
|
|
|
ifmr->ifm_status = IFM_AVALID;
|
|
if (sc->sc_flags & LE_CARRIER)
|
|
ifmr->ifm_status |= IFM_ACTIVE;
|
|
|
|
if (sc->sc_mediastatus)
|
|
(*sc->sc_mediastatus)(sc, ifmr);
|
|
LE_UNLOCK(sc);
|
|
}
|
|
|
|
/*
|
|
* Process an ioctl request.
|
|
*/
|
|
static int
|
|
lance_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
|
|
{
|
|
struct lance_softc *sc = ifp->if_softc;
|
|
struct ifreq *ifr = (struct ifreq *)data;
|
|
int error = 0;
|
|
|
|
switch (cmd) {
|
|
case SIOCSIFFLAGS:
|
|
LE_LOCK(sc);
|
|
if (ifp->if_flags & IFF_PROMISC) {
|
|
if (!(sc->sc_flags & LE_PROMISC)) {
|
|
sc->sc_flags |= LE_PROMISC;
|
|
lance_init_locked(sc);
|
|
}
|
|
} else if (sc->sc_flags & LE_PROMISC) {
|
|
sc->sc_flags &= ~LE_PROMISC;
|
|
lance_init_locked(sc);
|
|
}
|
|
|
|
if ((ifp->if_flags & IFF_ALLMULTI) &&
|
|
!(sc->sc_flags & LE_ALLMULTI)) {
|
|
sc->sc_flags |= LE_ALLMULTI;
|
|
lance_init_locked(sc);
|
|
} else if (!(ifp->if_flags & IFF_ALLMULTI) &&
|
|
(sc->sc_flags & LE_ALLMULTI)) {
|
|
sc->sc_flags &= ~LE_ALLMULTI;
|
|
lance_init_locked(sc);
|
|
}
|
|
|
|
if (!(ifp->if_flags & IFF_UP) &&
|
|
ifp->if_drv_flags & IFF_DRV_RUNNING) {
|
|
/*
|
|
* If interface is marked down and it is running, then
|
|
* stop it.
|
|
*/
|
|
lance_stop(sc);
|
|
} else if (ifp->if_flags & IFF_UP &&
|
|
!(ifp->if_drv_flags & IFF_DRV_RUNNING)) {
|
|
/*
|
|
* If interface is marked up and it is stopped, then
|
|
* start it.
|
|
*/
|
|
lance_init_locked(sc);
|
|
}
|
|
#ifdef LEDEBUG
|
|
if (ifp->if_flags & IFF_DEBUG)
|
|
sc->sc_flags |= LE_DEBUG;
|
|
else
|
|
sc->sc_flags &= ~LE_DEBUG;
|
|
#endif
|
|
LE_UNLOCK(sc);
|
|
break;
|
|
|
|
case SIOCADDMULTI:
|
|
case SIOCDELMULTI:
|
|
/*
|
|
* Multicast list has changed; set the hardware filter
|
|
* accordingly.
|
|
*/
|
|
LE_LOCK(sc);
|
|
if (ifp->if_drv_flags & IFF_DRV_RUNNING)
|
|
lance_init_locked(sc);
|
|
LE_UNLOCK(sc);
|
|
break;
|
|
|
|
case SIOCGIFMEDIA:
|
|
case SIOCSIFMEDIA:
|
|
error = ifmedia_ioctl(ifp, ifr, &sc->sc_media, cmd);
|
|
break;
|
|
|
|
default:
|
|
error = ether_ioctl(ifp, cmd, data);
|
|
break;
|
|
}
|
|
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* Set up the logical address filter.
|
|
*/
|
|
void
|
|
lance_setladrf(struct lance_softc *sc, uint16_t *af)
|
|
{
|
|
struct ifnet *ifp = sc->sc_ifp;
|
|
struct ifmultiaddr *ifma;
|
|
uint32_t crc;
|
|
|
|
/*
|
|
* Set up multicast address filter by passing all multicast addresses
|
|
* through a crc generator, and then using the high order 6 bits as an
|
|
* index into the 64 bit logical address filter. The high order bit
|
|
* selects the word, while the rest of the bits select the bit within
|
|
* the word.
|
|
*/
|
|
|
|
if (ifp->if_flags & IFF_PROMISC || sc->sc_flags & LE_ALLMULTI) {
|
|
af[0] = af[1] = af[2] = af[3] = 0xffff;
|
|
return;
|
|
}
|
|
|
|
af[0] = af[1] = af[2] = af[3] = 0x0000;
|
|
IF_ADDR_LOCK(ifp);
|
|
TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {
|
|
if (ifma->ifma_addr->sa_family != AF_LINK)
|
|
continue;
|
|
|
|
crc = ether_crc32_le(LLADDR((struct sockaddr_dl *)
|
|
ifma->ifma_addr), ETHER_ADDR_LEN);
|
|
|
|
/* Just want the 6 most significant bits. */
|
|
crc >>= 26;
|
|
|
|
/* Set the corresponding bit in the filter. */
|
|
af[crc >> 4] |= LE_HTOLE16(1 << (crc & 0xf));
|
|
}
|
|
IF_ADDR_UNLOCK(ifp);
|
|
}
|
|
|
|
/*
|
|
* Routines for accessing the transmit and receive buffers.
|
|
* The various CPU and adapter configurations supported by this
|
|
* driver require three different access methods for buffers
|
|
* and descriptors:
|
|
* (1) contig (contiguous data; no padding),
|
|
* (2) gap2 (two bytes of data followed by two bytes of padding),
|
|
* (3) gap16 (16 bytes of data followed by 16 bytes of padding).
|
|
*/
|
|
|
|
/*
|
|
* contig: contiguous data with no padding.
|
|
*
|
|
* Buffers may have any alignment.
|
|
*/
|
|
|
|
void
|
|
lance_copytobuf_contig(struct lance_softc *sc, void *from, int boff, int len)
|
|
{
|
|
volatile caddr_t buf = sc->sc_mem;
|
|
|
|
/*
|
|
* Just call memcpy() to do the work.
|
|
*/
|
|
memcpy(buf + boff, from, len);
|
|
}
|
|
|
|
void
|
|
lance_copyfrombuf_contig(struct lance_softc *sc, void *to, int boff, int len)
|
|
{
|
|
volatile caddr_t buf = sc->sc_mem;
|
|
|
|
/*
|
|
* Just call memcpy() to do the work.
|
|
*/
|
|
memcpy(to, buf + boff, len);
|
|
}
|
|
|
|
void
|
|
lance_zerobuf_contig(struct lance_softc *sc, int boff, int len)
|
|
{
|
|
volatile caddr_t buf = sc->sc_mem;
|
|
|
|
/*
|
|
* Just let memset() do the work
|
|
*/
|
|
memset(buf + boff, 0, len);
|
|
}
|
|
|
|
#if 0
|
|
/*
|
|
* Examples only; duplicate these and tweak (if necessary) in
|
|
* machine-specific front-ends.
|
|
*/
|
|
|
|
/*
|
|
* gap2: two bytes of data followed by two bytes of pad.
|
|
*
|
|
* Buffers must be 4-byte aligned. The code doesn't worry about
|
|
* doing an extra byte.
|
|
*/
|
|
|
|
static void
|
|
lance_copytobuf_gap2(struct lance_softc *sc, void *fromv, int boff, int len)
|
|
{
|
|
volatile caddr_t buf = sc->sc_mem;
|
|
caddr_t from = fromv;
|
|
volatile uint16_t *bptr;
|
|
|
|
if (boff & 0x1) {
|
|
/* Handle unaligned first byte. */
|
|
bptr = ((volatile uint16_t *)buf) + (boff - 1);
|
|
*bptr = (*from++ << 8) | (*bptr & 0xff);
|
|
bptr += 2;
|
|
len--;
|
|
} else
|
|
bptr = ((volatile uint16_t *)buf) + boff;
|
|
while (len > 1) {
|
|
*bptr = (from[1] << 8) | (from[0] & 0xff);
|
|
bptr += 2;
|
|
from += 2;
|
|
len -= 2;
|
|
}
|
|
if (len == 1)
|
|
*bptr = (uint16_t)*from;
|
|
}
|
|
|
|
static void
|
|
lance_copyfrombuf_gap2(struct lance_softc *sc, void *tov, int boff, int len)
|
|
{
|
|
volatile caddr_t buf = sc->sc_mem;
|
|
caddr_t to = tov;
|
|
volatile uint16_t *bptr;
|
|
uint16_t tmp;
|
|
|
|
if (boff & 0x1) {
|
|
/* Handle unaligned first byte. */
|
|
bptr = ((volatile uint16_t *)buf) + (boff - 1);
|
|
*to++ = (*bptr >> 8) & 0xff;
|
|
bptr += 2;
|
|
len--;
|
|
} else
|
|
bptr = ((volatile uint16_t *)buf) + boff;
|
|
while (len > 1) {
|
|
tmp = *bptr;
|
|
*to++ = tmp & 0xff;
|
|
*to++ = (tmp >> 8) & 0xff;
|
|
bptr += 2;
|
|
len -= 2;
|
|
}
|
|
if (len == 1)
|
|
*to = *bptr & 0xff;
|
|
}
|
|
|
|
static void
|
|
lance_zerobuf_gap2(struct lance_softc *sc, int boff, int len)
|
|
{
|
|
volatile caddr_t buf = sc->sc_mem;
|
|
volatile uint16_t *bptr;
|
|
|
|
if ((unsigned)boff & 0x1) {
|
|
bptr = ((volatile uint16_t *)buf) + (boff - 1);
|
|
*bptr &= 0xff;
|
|
bptr += 2;
|
|
len--;
|
|
} else
|
|
bptr = ((volatile uint16_t *)buf) + boff;
|
|
while (len > 0) {
|
|
*bptr = 0;
|
|
bptr += 2;
|
|
len -= 2;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* gap16: 16 bytes of data followed by 16 bytes of pad.
|
|
*
|
|
* Buffers must be 32-byte aligned.
|
|
*/
|
|
|
|
static void
|
|
lance_copytobuf_gap16(struct lance_softc *sc, void *fromv, int boff, int len)
|
|
{
|
|
volatile caddr_t buf = sc->sc_mem;
|
|
caddr_t bptr, from = fromv;
|
|
int xfer;
|
|
|
|
bptr = buf + ((boff << 1) & ~0x1f);
|
|
boff &= 0xf;
|
|
xfer = min(len, 16 - boff);
|
|
while (len > 0) {
|
|
memcpy(bptr + boff, from, xfer);
|
|
from += xfer;
|
|
bptr += 32;
|
|
boff = 0;
|
|
len -= xfer;
|
|
xfer = min(len, 16);
|
|
}
|
|
}
|
|
|
|
static void
|
|
lance_copyfrombuf_gap16(struct lance_softc *sc, void *tov, int boff, int len)
|
|
{
|
|
volatile caddr_t buf = sc->sc_mem;
|
|
caddr_t bptr, to = tov;
|
|
int xfer;
|
|
|
|
bptr = buf + ((boff << 1) & ~0x1f);
|
|
boff &= 0xf;
|
|
xfer = min(len, 16 - boff);
|
|
while (len > 0) {
|
|
memcpy(to, bptr + boff, xfer);
|
|
to += xfer;
|
|
bptr += 32;
|
|
boff = 0;
|
|
len -= xfer;
|
|
xfer = min(len, 16);
|
|
}
|
|
}
|
|
|
|
static void
|
|
lance_zerobuf_gap16(struct lance_softc *sc, int boff, int len)
|
|
{
|
|
volatile caddr_t buf = sc->sc_mem;
|
|
caddr_t bptr;
|
|
int xfer;
|
|
|
|
bptr = buf + ((boff << 1) & ~0x1f);
|
|
boff &= 0xf;
|
|
xfer = min(len, 16 - boff);
|
|
while (len > 0) {
|
|
memset(bptr + boff, 0, xfer);
|
|
bptr += 32;
|
|
boff = 0;
|
|
len -= xfer;
|
|
xfer = min(len, 16);
|
|
}
|
|
}
|
|
#endif /* Example only */
|