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Code Issues Releases Activity

Remove the el(4) driver for 3Com 3c501 ISA NICs from HEAD as threatened

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earlier as no one has stepped up to test recent changes to the driver.
Oddly, the module was actually turned on on ia64 though I'm fairly certain
that no ia64 machine has ever had or will ever have an ISA slot.

Axe borrowed from:	phk
This commit is contained in:
John Baldwin 2005-08-26 13:42:04 +00:00
parent 9d34e94d14
commit 721be80c83
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=149496
6 changed files with 0 additions and 904 deletions
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1
sys/conf/files.i386
View File

@ -321,7 +321,6 @@ i386/isa/clock.c standard
i386/isa/elcr.c standard
i386/isa/elink.c optional ep
i386/isa/elink.c optional ie
i386/isa/if_el.c optional el
i386/isa/isa.c optional isa
i386/isa/isa_dma.c optional isa
i386/isa/nmi.c standard

5
sys/i386/conf/NOTES
View File

@ -491,7 +491,6 @@ hint.mse.0.irq="5"
# ed: Western Digital and SMC 80xx; Novell NE1000 and NE2000; 3Com 3C503
# HP PC Lan+, various PC Card devices (refer to etc/defaults/pccard.conf)
# (requires miibus)
# el: 3Com 3C501 (slow!)
# ie: AT&T StarLAN 10 and EN100; 3Com 3C507; unknown NI5210;
# Intel EtherExpress
# lnc: Lance/PCnet cards (Isolan, Novell NE2100, NE32-VL, AMD Am7990 and
@ -535,10 +534,6 @@ hint.ed.0.at="isa"
hint.ed.0.port="0x280"
hint.ed.0.irq="5"
hint.ed.0.maddr="0xd8000"
device el
hint.el.0.at="isa"
hint.el.0.port="0x300"
hint.el.0.irq="9"
device ie # Hints only required for Starlan
hint.ie.2.at="isa"
hint.ie.2.port="0x300"

808
sys/i386/isa/if_el.c
View File

@ -1,808 +0,0 @@
/*-
* Copyright (c) 1994, Matthew E. Kimmel. Permission is hereby granted
* to use, copy, modify and distribute this software provided that both
* the copyright notice and this permission notice appear in all copies
* of the software, derivative works or modified versions, and any
* portions thereof.
*
* Questions, comments, bug reports and fixes to kimmel@cs.umass.edu.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
/* Except of course for the portions of code lifted from other FreeBSD
* drivers (mainly elread, elget and el_ioctl)
*/
/* 3COM Etherlink 3C501 device driver for FreeBSD */
/* Yeah, I know these cards suck, but you can also get them for free
* really easily...
*/
/* Bugs/possible improvements:
* - Does not currently support DMA
* - Does not currently support multicasts
*/
#include "opt_inet.h"
#include "opt_ipx.h"
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/module.h>
#include <sys/sockio.h>
#include <sys/mbuf.h>
#include <sys/socket.h>
#include <sys/syslog.h>
#include <sys/bus.h>
#include <net/ethernet.h>
#include <net/if.h>
#include <net/if_types.h>
#include <netinet/in.h>
#include <netinet/if_ether.h>
#include <net/bpf.h>
#include <machine/bus.h>
#include <machine/resource.h>
#include <sys/bus.h>
#include <sys/rman.h>
#include <isa/isavar.h>
#include <i386/isa/if_elreg.h>
/* For debugging convenience */
#ifdef EL_DEBUG
#define dprintf(x) printf x
#else
#define dprintf(x)
#endif
/* el_softc: per line info and status */
struct el_softc {
struct ifnet *el_ifp;
u_char el_enaddr[6];
bus_space_handle_t el_bhandle;
bus_space_tag_t el_btag;
void *el_intrhand;
struct resource *el_irq;
struct resource *el_res;
struct mtx el_mtx;
char el_pktbuf[EL_BUFSIZ]; /* Frame buffer */
};
/* Prototypes */
static int el_attach(device_t);
static int el_detach(device_t);
static void el_init(void *);
static void el_init_locked(struct el_softc *);
static int el_ioctl(struct ifnet *,u_long,caddr_t);
static int el_probe(device_t);
static void el_start(struct ifnet *);
static void el_start_locked(struct ifnet *);
static void el_reset(struct el_softc *);
static void el_watchdog(struct ifnet *);
static int el_shutdown(device_t);
static void el_stop(struct el_softc *);
static int el_xmit(struct el_softc *,int);
static void elintr(void *);
static __inline void elread(struct el_softc *,caddr_t,int);
static struct mbuf *elget(caddr_t,int,struct ifnet *);
static __inline void el_hardreset(struct el_softc *);
static device_method_t el_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, el_probe),
DEVMETHOD(device_attach, el_attach),
DEVMETHOD(device_detach, el_detach),
DEVMETHOD(device_shutdown, el_shutdown),
{ 0, 0 }
};
static driver_t el_driver = {
"el",
el_methods,
sizeof(struct el_softc)
};
static devclass_t el_devclass;
DRIVER_MODULE(if_el, isa, el_driver, el_devclass, 0, 0);
#define CSR_WRITE_1(sc, reg, val) \
bus_space_write_1(sc->el_btag, sc->el_bhandle, reg, val)
#define CSR_READ_1(sc, reg) \
bus_space_read_1(sc->el_btag, sc->el_bhandle, reg)
#define EL_LOCK(_sc) mtx_lock(&(_sc)->el_mtx)
#define EL_UNLOCK(_sc) mtx_unlock(&(_sc)->el_mtx)
#define EL_LOCK_ASSERT(_sc) mtx_assert(&(_sc)->el_mtx, MA_OWNED)
/* Probe routine. See if the card is there and at the right place. */
static int
el_probe(device_t dev)
{
struct el_softc *sc;
u_short base; /* Just for convenience */
int i, rid;
/* Grab some info for our structure */
sc = device_get_softc(dev);
if (isa_get_logicalid(dev)) /* skip PnP probes */
return (ENXIO);
if ((base = bus_get_resource_start(dev, SYS_RES_IOPORT, 0)) == 0)
return (ENXIO);
/* First check the base */
if((base < 0x280) || (base > 0x3f0)) {
device_printf(dev,
"ioaddr must be between 0x280 and 0x3f0\n");
return(ENXIO);
}
/* Temporarily map the resources. */
rid = 0;
sc->el_res = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid,
0, ~0, EL_IOSIZ, RF_ACTIVE);
if (sc->el_res == NULL)
return(ENXIO);
sc->el_btag = rman_get_bustag(sc->el_res);
sc->el_bhandle = rman_get_bushandle(sc->el_res);
/* Now attempt to grab the station address from the PROM
* and see if it contains the 3com vendor code.
*/
dprintf(("Probing 3c501 at 0x%x...\n",base));
/* Reset the board */
dprintf(("Resetting board...\n"));
CSR_WRITE_1(sc,EL_AC,EL_AC_RESET);
DELAY(5);
CSR_WRITE_1(sc,EL_AC,0);
dprintf(("Reading station address...\n"));
/* Now read the address */
for(i=0;i<ETHER_ADDR_LEN;i++) {
CSR_WRITE_1(sc,EL_GPBL,i);
sc->el_enaddr[i] = CSR_READ_1(sc,EL_EAW);
}
/* Now release resources */
bus_release_resource(dev, SYS_RES_IOPORT, rid, sc->el_res);
dprintf(("Address is %6D\n",sc->el_enaddr, ":"));
/* If the vendor code is ok, return a 1. We'll assume that
* whoever configured this system is right about the IRQ.
*/
if((sc->el_enaddr[0] != 0x02) || (sc->el_enaddr[1] != 0x60)
|| (sc->el_enaddr[2] != 0x8c)) {
dprintf(("Bad vendor code.\n"));
return(ENXIO);
} else {
dprintf(("Vendor code ok.\n"));
}
device_set_desc(dev, "3Com 3c501 Ethernet");
return(0);
}
/* Do a hardware reset of the 3c501. Do not call until after el_probe()! */
static __inline void
el_hardreset(sc)
struct el_softc *sc;
{
register int j;
/* First reset the board */
EL_LOCK_ASSERT(sc);
CSR_WRITE_1(sc,EL_AC,EL_AC_RESET);
DELAY(5);
CSR_WRITE_1(sc,EL_AC,0);
/* Then give it back its ethernet address. Thanks to the mach
* source code for this undocumented goodie...
*/
for(j=0;j<ETHER_ADDR_LEN;j++)
CSR_WRITE_1(sc,j,IFP2ENADDR(sc->el_ifp)[j]);
}
/* Attach the interface to the kernel data structures. By the time
* this is called, we know that the card exists at the given I/O address.
* We still assume that the IRQ given is correct.
*/
static int
el_attach(device_t dev)
{
struct el_softc *sc;
struct ifnet *ifp;
int rid, error;
dprintf(("Attaching el%d...\n",device_get_unit(dev)));
/* Get things pointing to the right places. */
sc = device_get_softc(dev);
mtx_init(&sc->el_mtx, device_get_nameunit(dev), MTX_NETWORK_LOCK,
MTX_DEF);
ifp = sc->el_ifp = if_alloc(IFT_ETHER);
if (ifp == NULL) {
mtx_destroy(&sc->el_mtx);
return (ENOSPC);
}
rid = 0;
sc->el_res = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid,
0, ~0, EL_IOSIZ, RF_ACTIVE);
if (sc->el_res == NULL) {
mtx_destroy(&sc->el_mtx);
if_free(ifp);
return(ENXIO);
}
rid = 0;
sc->el_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid,
RF_SHAREABLE | RF_ACTIVE);
if (sc->el_irq == NULL) {
mtx_destroy(&sc->el_mtx);
if_free(ifp);
bus_release_resource(dev, SYS_RES_IOPORT, 0, sc->el_res);
return(ENXIO);
}
/* Initialize ifnet structure */
ifp->if_softc = sc;
if_initname(ifp, device_get_name(dev), device_get_unit(dev));
ifp->if_mtu = ETHERMTU;
ifp->if_start = el_start;
ifp->if_ioctl = el_ioctl;
ifp->if_watchdog = el_watchdog;
ifp->if_init = el_init;
ifp->if_flags = (IFF_BROADCAST | IFF_MULTICAST | IFF_SIMPLEX);
ifp->if_snd.ifq_maxlen = IFQ_MAXLEN;
/* Now we can attach the interface */
dprintf(("Attaching interface...\n"));
ether_ifattach(ifp, sc->el_enaddr);
/* Finally, setup the interrupt handler. */
error = bus_setup_intr(dev, sc->el_irq, INTR_TYPE_NET | INTR_MPSAFE,
elintr, sc, &sc->el_intrhand);
if (error) {
ether_ifdetach(ifp);
if_free(ifp);
mtx_destroy(&sc->el_mtx);
bus_release_resource(dev, SYS_RES_IRQ, 0, sc->el_irq);
bus_release_resource(dev, SYS_RES_IOPORT, 0, sc->el_res);
return(ENXIO);
}
/* Now reset the board */
dprintf(("Resetting board...\n"));
EL_LOCK(sc);
el_hardreset(sc);
EL_UNLOCK(sc);
dprintf(("el_attach() finished.\n"));
return(0);
}
static int el_detach(dev)
device_t dev;
{
struct el_softc *sc;
struct ifnet *ifp;
sc = device_get_softc(dev);
ifp = sc->el_ifp;
EL_LOCK(sc);
el_stop(sc);
EL_UNLOCK(sc);
ether_ifdetach(ifp);
if_free(ifp);
bus_teardown_intr(dev, sc->el_irq, sc->el_intrhand);
bus_release_resource(dev, SYS_RES_IRQ, 0, sc->el_irq);
bus_release_resource(dev, SYS_RES_IOPORT, 0, sc->el_res);
mtx_destroy(&sc->el_mtx);
return(0);
}
static int
el_shutdown(dev)
device_t dev;
{
struct el_softc *sc;
sc = device_get_softc(dev);
EL_LOCK(sc);
el_stop(sc);
EL_UNLOCK(sc);
return(0);
}
/* This routine resets the interface. */
static void
el_reset(sc)
struct el_softc *sc;
{
dprintf(("elreset()\n"));
el_stop(sc);
el_init_locked(sc);
}
static void el_stop(sc)
struct el_softc *sc;
{
EL_LOCK_ASSERT(sc);
CSR_WRITE_1(sc,EL_AC,0);
el_hardreset(sc);
}
/* Initialize interface. */
static void
el_init(xsc)
void *xsc;
{
struct el_softc *sc = xsc;
EL_LOCK(sc);
el_init_locked(sc);
EL_UNLOCK(sc);
}
static void
el_init_locked(sc)
struct el_softc *sc;
{
struct ifnet *ifp;
/* Set up pointers */
ifp = sc->el_ifp;
/* If address not known, do nothing. */
if(TAILQ_EMPTY(&ifp->if_addrhead)) /* XXX unlikely */
return;
EL_LOCK_ASSERT(sc);
/* First, reset the board. */
dprintf(("Resetting board...\n"));
el_hardreset(sc);
/* Configure rx */
dprintf(("Configuring rx...\n"));
if(ifp->if_flags & IFF_PROMISC)
CSR_WRITE_1(sc,EL_RXC,
(EL_RXC_PROMISC|EL_RXC_ABROAD|EL_RXC_AMULTI|
EL_RXC_AGF|EL_RXC_DSHORT|EL_RXC_DDRIB|EL_RXC_DOFLOW));
else
CSR_WRITE_1(sc,EL_RXC,
(EL_RXC_ABROAD|EL_RXC_AMULTI|
EL_RXC_AGF|EL_RXC_DSHORT|EL_RXC_DDRIB|EL_RXC_DOFLOW));
CSR_WRITE_1(sc,EL_RBC,0);
/* Configure TX */
dprintf(("Configuring tx...\n"));
CSR_WRITE_1(sc,EL_TXC,0);
/* Start reception */
dprintf(("Starting reception...\n"));
CSR_WRITE_1(sc,EL_AC,(EL_AC_IRQE|EL_AC_RX));
/* Set flags appropriately */
ifp->if_drv_flags |= IFF_DRV_RUNNING;
ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
/* And start output. */
el_start_locked(ifp);
}
/* Start output on interface. Get datagrams from the queue and output
* them, giving the receiver a chance between datagrams. Call only
* from splimp or interrupt level!
*/
static void
el_start(struct ifnet *ifp)
{
struct el_softc *sc;
sc = ifp->if_softc;
EL_LOCK(sc);
el_start_locked(ifp);
EL_UNLOCK(sc);
}
static void
el_start_locked(struct ifnet *ifp)
{
struct el_softc *sc;
struct mbuf *m, *m0;
int i, len, retries, done;
/* Get things pointing in the right directions */
sc = ifp->if_softc;
dprintf(("el_start()...\n"));
EL_LOCK_ASSERT(sc);
/* Don't do anything if output is active */
if(sc->el_ifp->if_drv_flags & IFF_DRV_OACTIVE)
return;
sc->el_ifp->if_drv_flags |= IFF_DRV_OACTIVE;
/* The main loop. They warned me against endless loops, but
* would I listen? NOOO....
*/
while(1) {
/* Dequeue the next datagram */
IF_DEQUEUE(&sc->el_ifp->if_snd,m0);
/* If there's nothing to send, return. */
if(m0 == NULL) {
sc->el_ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
return;
}
/* Disable the receiver */
CSR_WRITE_1(sc,EL_AC,EL_AC_HOST);
CSR_WRITE_1(sc,EL_RBC,0);
/* Copy the datagram to the buffer. */
len = 0;
for(m = m0; m != NULL; m = m->m_next) {
if(m->m_len == 0)
continue;
bcopy(mtod(m,caddr_t),sc->el_pktbuf+len,m->m_len);
len += m->m_len;
}
m_freem(m0);
len = max(len,ETHER_MIN_LEN);
/* Give the packet to the bpf, if any */
BPF_TAP(sc->el_ifp, sc->el_pktbuf, len);
/* Transfer datagram to board */
dprintf(("el: xfr pkt length=%d...\n",len));
i = EL_BUFSIZ - len;
CSR_WRITE_1(sc,EL_GPBL,(i & 0xff));
CSR_WRITE_1(sc,EL_GPBH,((i>>8)&0xff));
bus_space_write_multi_1(sc->el_btag, sc->el_bhandle,
EL_BUF, sc->el_pktbuf, len);
/* Now transmit the datagram */
retries=0;
done=0;
while(!done) {
if(el_xmit(sc,len)) { /* Something went wrong */
done = -1;
break;
}
/* Check out status */
i = CSR_READ_1(sc,EL_TXS);
dprintf(("tx status=0x%x\n",i));
if(!(i & EL_TXS_READY)) {
dprintf(("el: err txs=%x\n",i));
sc->el_ifp->if_oerrors++;
if(i & (EL_TXS_COLL|EL_TXS_COLL16)) {
if((!(i & EL_TXC_DCOLL16)) && retries < 15) {
retries++;
CSR_WRITE_1(sc,EL_AC,EL_AC_HOST);
}
}
else
done = 1;
}
else {
sc->el_ifp->if_opackets++;
done = 1;
}
}
if(done == -1) /* Packet not transmitted */
continue;
/* Now give the card a chance to receive.
* Gotta love 3c501s...
*/
(void)CSR_READ_1(sc,EL_AS);
CSR_WRITE_1(sc,EL_AC,(EL_AC_IRQE|EL_AC_RX));
EL_UNLOCK(sc);
/* Interrupt here */
EL_LOCK(sc);
}
}
/* This function actually attempts to transmit a datagram downloaded
* to the board. Call at splimp or interrupt, after downloading data!
* Returns 0 on success, non-0 on failure
*/
static int
el_xmit(struct el_softc *sc,int len)
{
int gpl;
int i;
gpl = EL_BUFSIZ - len;
dprintf(("el: xmit..."));
CSR_WRITE_1(sc,EL_GPBL,(gpl & 0xff));
CSR_WRITE_1(sc,EL_GPBH,((gpl>>8)&0xff));
CSR_WRITE_1(sc,EL_AC,EL_AC_TXFRX);
i = 20000;
while((CSR_READ_1(sc,EL_AS) & EL_AS_TXBUSY) && (i>0))
i--;
if(i == 0) {
dprintf(("tx not ready\n"));
sc->el_ifp->if_oerrors++;
return(-1);
}
dprintf(("%d cycles.\n",(20000-i)));
return(0);
}
/* Pass a packet up to the higher levels. */
static __inline void
elread(struct el_softc *sc,caddr_t buf,int len)
{
struct ifnet *ifp = sc->el_ifp;
struct mbuf *m;
/*
* Put packet into an mbuf chain
*/
EL_LOCK_ASSERT(sc);
m = elget(buf,len,ifp);
if(m == 0)
return;
EL_UNLOCK(sc);
(*ifp->if_input)(ifp,m);
EL_LOCK(sc);
}
/* controller interrupt */
static void
elintr(void *xsc)
{
register struct el_softc *sc;
int stat, rxstat, len, done;
/* Get things pointing properly */
sc = xsc;
EL_LOCK(sc);
dprintf(("elintr: "));
/* Check board status */
stat = CSR_READ_1(sc,EL_AS);
if(stat & EL_AS_RXBUSY) {
(void)CSR_READ_1(sc,EL_RXC);
CSR_WRITE_1(sc,EL_AC,(EL_AC_IRQE|EL_AC_RX));
EL_UNLOCK(sc);
return;
}
done = 0;
while(!done) {
rxstat = CSR_READ_1(sc,EL_RXS);
if(rxstat & EL_RXS_STALE) {
(void)CSR_READ_1(sc,EL_RXC);
CSR_WRITE_1(sc,EL_AC,(EL_AC_IRQE|EL_AC_RX));
EL_UNLOCK(sc);
return;
}
/* If there's an overflow, reinit the board. */
if(!(rxstat & EL_RXS_NOFLOW)) {
dprintf(("overflow.\n"));
el_hardreset(sc);
/* Put board back into receive mode */
if(sc->el_ifp->if_flags & IFF_PROMISC)
CSR_WRITE_1(sc,EL_RXC,
(EL_RXC_PROMISC|EL_RXC_ABROAD|
EL_RXC_AMULTI|EL_RXC_AGF|EL_RXC_DSHORT|
EL_RXC_DDRIB|EL_RXC_DOFLOW));
else
CSR_WRITE_1(sc,EL_RXC,
(EL_RXC_ABROAD|
EL_RXC_AMULTI|EL_RXC_AGF|EL_RXC_DSHORT|
EL_RXC_DDRIB|EL_RXC_DOFLOW));
(void)CSR_READ_1(sc,EL_AS);
CSR_WRITE_1(sc,EL_RBC,0);
(void)CSR_READ_1(sc,EL_RXC);
CSR_WRITE_1(sc,EL_AC,(EL_AC_IRQE|EL_AC_RX));
EL_UNLOCK(sc);
return;
}
/* Incoming packet */
len = CSR_READ_1(sc,EL_RBL);
len |= CSR_READ_1(sc,EL_RBH) << 8;
dprintf(("receive len=%d rxstat=%x ",len,rxstat));
CSR_WRITE_1(sc,EL_AC,EL_AC_HOST);
/* If packet too short or too long, restore rx mode and return
*/
if((len <= sizeof(struct ether_header)) || (len > ETHER_MAX_LEN)) {
if(sc->el_ifp->if_flags & IFF_PROMISC)
CSR_WRITE_1(sc,EL_RXC,
(EL_RXC_PROMISC|EL_RXC_ABROAD|
EL_RXC_AMULTI|EL_RXC_AGF|EL_RXC_DSHORT|
EL_RXC_DDRIB|EL_RXC_DOFLOW));
else
CSR_WRITE_1(sc,EL_RXC,
(EL_RXC_ABROAD|
EL_RXC_AMULTI|EL_RXC_AGF|EL_RXC_DSHORT|
EL_RXC_DDRIB|EL_RXC_DOFLOW));
(void)CSR_READ_1(sc,EL_AS);
CSR_WRITE_1(sc,EL_RBC,0);
(void)CSR_READ_1(sc,EL_RXC);
CSR_WRITE_1(sc,EL_AC,(EL_AC_IRQE|EL_AC_RX));
EL_UNLOCK(sc);
return;
}
sc->el_ifp->if_ipackets++;
/* Copy the data into our buffer */
CSR_WRITE_1(sc,EL_GPBL,0);
CSR_WRITE_1(sc,EL_GPBH,0);
bus_space_read_multi_1(sc->el_btag, sc->el_bhandle,
EL_BUF, sc->el_pktbuf, len);
CSR_WRITE_1(sc,EL_RBC,0);
CSR_WRITE_1(sc,EL_AC,EL_AC_RX);
dprintf(("%6D-->",sc->el_pktbuf+6,":"));
dprintf(("%6D\n",sc->el_pktbuf,":"));
/* Pass data up to upper levels */
elread(sc,(caddr_t)(sc->el_pktbuf),len);
/* Is there another packet? */
stat = CSR_READ_1(sc,EL_AS);
/* If so, do it all again (i.e. don't set done to 1) */
if(!(stat & EL_AS_RXBUSY))
dprintf(("<rescan> "));
else
done = 1;
}
(void)CSR_READ_1(sc,EL_RXC);
CSR_WRITE_1(sc,EL_AC,(EL_AC_IRQE|EL_AC_RX));
EL_UNLOCK(sc);
return;
}
/*
* Pull read data off an interface.
* Len is length of data, with local net header stripped.
*/
static struct mbuf *
elget(buf, totlen, ifp)
caddr_t buf;
int totlen;
struct ifnet *ifp;
{
struct mbuf *top, **mp, *m;
int len;
register caddr_t cp;
char *epkt;
buf += sizeof(struct ether_header);
cp = buf;
epkt = cp + totlen;
MGETHDR(m, M_DONTWAIT, MT_DATA);
if (m == 0)
return (0);
m->m_pkthdr.rcvif = ifp;
m->m_pkthdr.len = totlen;
m->m_len = MHLEN;
top = 0;
mp = &top;
while (totlen > 0) {
if (top) {
MGET(m, M_DONTWAIT, MT_DATA);
if (m == 0) {
m_freem(top);
return (0);
}
m->m_len = MLEN;
}
len = min(totlen, epkt - cp);
if (len >= MINCLSIZE) {
MCLGET(m, M_DONTWAIT);
if (m->m_flags & M_EXT)
m->m_len = len = min(len, MCLBYTES);
else
len = m->m_len;
} else {
/*
* Place initial small packet/header at end of mbuf.
*/
if (len < m->m_len) {
if (top == 0 && len + max_linkhdr <= m->m_len)
m->m_data += max_linkhdr;
m->m_len = len;
} else
len = m->m_len;
}
bcopy(cp, mtod(m, caddr_t), (unsigned)len);
cp += len;
*mp = m;
mp = &m->m_next;
totlen -= len;
if (cp == epkt)
cp = buf;
}
return (top);
}
/*
* Process an ioctl request. This code needs some work - it looks
* pretty ugly.
*/
static int
el_ioctl(ifp, command, data)
register struct ifnet *ifp;
u_long command;
caddr_t data;
{
int error = 0;
struct el_softc *sc;
sc = ifp->if_softc;
switch (command) {
case SIOCSIFFLAGS:
EL_LOCK(sc);
/*
* If interface is marked down and it is running, then stop it
*/
if (((ifp->if_flags & IFF_UP) == 0) &&
(ifp->if_drv_flags & IFF_DRV_RUNNING)) {
el_stop(sc);
ifp->if_drv_flags &= ~IFF_DRV_RUNNING;
} else {
/*
* If interface is marked up and it is stopped, then start it
*/
if ((ifp->if_flags & IFF_UP) &&
((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0))
el_init_locked(ifp->if_softc);
}
EL_UNLOCK(sc);
break;
default:
error = ether_ioctl(ifp, command, data);
break;
}
return (error);
}
/* Device timeout routine */
static void
el_watchdog(struct ifnet *ifp)
{
struct el_softc *sc;
sc = ifp->if_softc;
log(LOG_ERR,"%s: device timeout\n", ifp->if_xname);
EL_LOCK(sc);
ifp->if_oerrors++;
el_reset(sc);
EL_UNLOCK(sc);
}

78
sys/i386/isa/if_elreg.h
View File

@ -1,78 +0,0 @@
/*-
* Copyright (c) 1994, Matthew E. Kimmel. Permission is hereby granted
* to use, copy, modify and distribute this software provided that both
* the copyright notice and this permission notice appear in all copies
* of the software, derivative works or modified versions, and any
* portions thereof.
*
* $FreeBSD$
*/
/* 3COM Etherlink 3C501 Register Definitions */
/* I/O Ports */
#define EL_RXS 0x6 /* Receive status register */
#define EL_RXC 0x6 /* Receive command register */
#define EL_TXS 0x7 /* Transmit status register */
#define EL_TXC 0x7 /* Transmit command register */
#define EL_GPBL 0x8 /* GP buffer ptr low byte */
#define EL_GPBH 0x9 /* GP buffer ptr high byte */
#define EL_RBL 0xa /* Receive buffer ptr low byte */
#define EL_RBC 0xa /* Receive buffer clear */
#define EL_RBH 0xb /* Receive buffer ptr high byte */
#define EL_EAW 0xc /* Ethernet address window */
#define EL_AS 0xe /* Auxiliary status register */
#define EL_AC 0xe /* Auxiliary command register */
#define EL_BUF 0xf /* Data buffer */
/* Receive status register bits */
#define EL_RXS_OFLOW 0x01 /* Overflow error */
#define EL_RXS_FCS 0x02 /* FCS error */
#define EL_RXS_DRIB 0x04 /* Dribble error */
#define EL_RXS_SHORT 0x08 /* Short frame */
#define EL_RXS_NOFLOW 0x10 /* No overflow */
#define EL_RXS_GOOD 0x20 /* Received good frame */
#define EL_RXS_STALE 0x80 /* Stale receive status */
/* Receive command register bits */
#define EL_RXC_DISABLE 0x00 /* Receiver disabled */
#define EL_RXC_DOFLOW 0x01 /* Detect overflow */
#define EL_RXC_DFCS 0x02 /* Detect FCS errs */
#define EL_RXC_DDRIB 0x04 /* Detect dribble errors */
#define EL_RXC_DSHORT 0x08 /* Detect short frames */
#define EL_RXC_DNOFLOW 0x10 /* Detect frames w/o overflow ??? */
#define EL_RXC_AGF 0x20 /* Accept Good Frames */
#define EL_RXC_PROMISC 0x40 /* Promiscuous mode */
#define EL_RXC_ABROAD 0x80 /* Accept address, broadcast */
#define EL_RXC_AMULTI 0xc0 /* Accept address, multicast */
/* Transmit status register bits */
#define EL_TXS_UFLOW 0x01 /* Underflow */
#define EL_TXS_COLL 0x02 /* Collision */
#define EL_TXS_COLL16 0x04 /* Collision 16 */
#define EL_TXS_READY 0x08 /* Ready for new frame */
/* Transmit command register bits */
#define EL_TXC_DUFLOW 0x01 /* Detect underflow */
#define EL_TXC_DCOLL 0x02 /* Detect collisions */
#define EL_TXC_DCOLL16 0x04 /* Detect collision 16 */
#define EL_TXC_DSUCCESS 0x08 /* Detect success */
/* Auxiliary status register bits */
#define EL_AS_RXBUSY 0x01 /* Receive busy */
#define EL_AS_DMADONE 0x10 /* DMA finished */
#define EL_AS_TXBUSY 0x80 /* Transmit busy */
/* Auxiliary command register bits */
#define EL_AC_HOST 0x00 /* System bus can access buffer */
#define EL_AC_IRQE 0x01 /* IRQ enable */
#define EL_AC_TXBAD 0x02 /* Transmit frames with bad FCS */
#define EL_AC_TXFRX 0x04 /* Transmit followed by receive */
#define EL_AC_RX 0x08 /* Receive */
#define EL_AC_LB 0x0c /* Loopback */
#define EL_AC_DRQ 0x20 /* DMA request */
#define EL_AC_RIDE 0x40 /* DRQ and IRQ enabled */
#define EL_AC_RESET 0x80 /* Reset */
/* Packet buffer size */
#define EL_BUFSIZ 2048
#define EL_IOSIZ 16

3
sys/modules/Makefile
View File

@ -69,7 +69,6 @@ SUBDIR= ${_3dfx} \
${_drm} \
dummynet \
${_ed} \
${_el} \
${_elink} \
${_em} \
en \
@ -384,7 +383,6 @@ _cs= cs
_ctau= ctau
_cx= cx
_dpt= dpt
_el= el
_ex= ex
_exca= exca
_hptmv= hptmv
@ -469,7 +467,6 @@ _ciss= ciss
_cm= cm
_coff= coff
_cpufreq= cpufreq
_el= el
_em= em
_ep= ep
_exca= exca

9
sys/modules/el/Makefile
View File

@ -1,9 +0,0 @@
# $FreeBSD$
.PATH: ${.CURDIR}/../../i386/isa
KMOD= if_el
SRCS= if_el.c
SRCS+= opt_bdg.h opt_inet.h opt_ipx.h device_if.h bus_if.h isa_if.h
.include <bsd.kmod.mk>