version 1.50, 1998/07/07 14:13:51 |
version 1.51, 1998/07/21 17:26:45 |
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* @(#)if_le.c 8.2 (Berkeley) 11/16/93 |
* @(#)if_le.c 8.2 (Berkeley) 11/16/93 |
*/ |
*/ |
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#include "opt_ddb.h" |
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#include "opt_inet.h" |
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#include "opt_ccitt.h" |
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#include "opt_llc.h" |
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#include "opt_ns.h" |
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#include "bpfilter.h" |
#include "bpfilter.h" |
#include "rnd.h" |
#include "rnd.h" |
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#include <net/if_ether.h> |
#include <net/if_ether.h> |
#include <net/if_media.h> |
#include <net/if_media.h> |
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#ifdef INET |
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#include <netinet/in.h> |
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#include <netinet/if_inarp.h> |
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#include <netinet/in_systm.h> |
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#include <netinet/in_var.h> |
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#include <netinet/ip.h> |
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#endif |
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#ifdef NS |
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#include <netns/ns.h> |
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#include <netns/ns_if.h> |
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#endif |
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#if defined(CCITT) && defined(LLC) |
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#include <sys/socketvar.h> |
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#include <netccitt/x25.h> |
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#include <netccitt/pk.h> |
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#include <netccitt/pk_var.h> |
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#include <netccitt/pk_extern.h> |
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#endif |
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#if NBPFILTER > 0 |
#if NBPFILTER > 0 |
#include <net/bpf.h> |
#include <net/bpf.h> |
#include <net/bpfdesc.h> |
#include <net/bpfdesc.h> |
#endif |
#endif |
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#include <dev/ic/lancereg.h> |
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#include <dev/ic/lancevar.h> |
#include <dev/ic/am7990reg.h> |
#include <dev/ic/am7990reg.h> |
#include <dev/ic/am7990var.h> |
#include <dev/ic/am7990var.h> |
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#ifdef LEDEBUG |
void am7990_meminit __P((struct lance_softc *)); |
void am7990_recv_print __P((struct am7990_softc *, int)); |
void am7990_start __P((struct ifnet *)); |
void am7990_xmit_print __P((struct am7990_softc *, int)); |
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#endif |
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integrate void am7990_rint __P((struct am7990_softc *)); |
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integrate void am7990_tint __P((struct am7990_softc *)); |
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integrate int am7990_put __P((struct am7990_softc *, int, struct mbuf *)); |
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integrate struct mbuf *am7990_get __P((struct am7990_softc *, int, int)); |
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integrate void am7990_read __P((struct am7990_softc *, int, int)); |
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hide void am7990_shutdown __P((void *)); |
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int am7990_mediachange __P((struct ifnet *)); |
#if defined(_KERNEL) && !defined(_LKM) |
void am7990_mediastatus __P((struct ifnet *, struct ifmediareq *)); |
#include "opt_ddb.h" |
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#endif |
#define ifp (&sc->sc_ethercom.ec_if) |
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static inline u_int16_t ether_cmp __P((void *, void *)); |
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/* |
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* Compare two Ether/802 addresses for equality, inlined and |
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* unrolled for speed. Use this like bcmp(). |
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* |
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* XXX: Add <machine/inlines.h> for stuff like this? |
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* XXX: or maybe add it to libkern.h instead? |
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* |
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* "I'd love to have an inline assembler version of this." |
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* XXX: Who wanted that? mycroft? I wrote one, but this |
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* version in C is as good as hand-coded assembly. -gwr |
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* |
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* Please do NOT tweak this without looking at the actual |
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* assembly code generated before and after your tweaks! |
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*/ |
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static inline u_int16_t |
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ether_cmp(one, two) |
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void *one, *two; |
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{ |
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register u_int16_t *a = (u_short *) one; |
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register u_int16_t *b = (u_short *) two; |
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register u_int16_t diff; |
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#ifdef m68k |
#ifdef DDB |
/* |
#define integrate |
* The post-increment-pointer form produces the best |
#define hide |
* machine code for m68k. This was carefully tuned |
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* so it compiles to just 8 short (2-byte) op-codes! |
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*/ |
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diff = *a++ - *b++; |
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diff |= *a++ - *b++; |
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diff |= *a++ - *b++; |
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#else |
#else |
/* |
#define integrate static __inline |
* Most modern CPUs do better with a single expresion. |
#define hide static |
* Note that short-cut evaluation is NOT helpful here, |
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* because it just makes the code longer, not faster! |
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*/ |
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diff = (a[0] - b[0]) | (a[1] - b[1]) | (a[2] - b[2]); |
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#endif |
#endif |
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return (diff); |
integrate void am7990_rint __P((struct lance_softc *)); |
} |
integrate void am7990_tint __P((struct lance_softc *)); |
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#define ETHER_CMP ether_cmp |
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#ifdef LANCE_REVC_BUG |
#ifdef LEDEBUG |
/* Make sure this is short-aligned, for ether_cmp(). */ |
void am7990_recv_print __P((struct lance_softc *, int)); |
static u_int16_t bcast_enaddr[3] = { ~0, ~0, ~0 }; |
void am7990_xmit_print __P((struct lance_softc *, int)); |
#endif |
#endif |
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#define ifp (&sc->sc_ethercom.ec_if) |
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void |
void |
am7990_config(sc) |
am7990_config(sc) |
struct am7990_softc *sc; |
struct am7990_softc *sc; |
{ |
{ |
int mem, i; |
int mem, i; |
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/* Make sure the chip is stopped. */ |
sc->lsc.sc_meminit = am7990_meminit; |
am7990_stop(sc); |
sc->lsc.sc_start = am7990_start; |
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/* Initialize ifnet structure. */ |
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bcopy(sc->sc_dev.dv_xname, ifp->if_xname, IFNAMSIZ); |
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ifp->if_softc = sc; |
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ifp->if_start = am7990_start; |
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ifp->if_ioctl = am7990_ioctl; |
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ifp->if_watchdog = am7990_watchdog; |
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ifp->if_flags = |
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IFF_BROADCAST | IFF_SIMPLEX | IFF_NOTRAILERS | IFF_MULTICAST; |
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#ifdef LANCE_REVC_BUG |
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ifp->if_flags &= ~IFF_MULTICAST; |
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#endif |
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/* Initialize ifmedia structures. */ |
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ifmedia_init(&sc->sc_media, 0, am7990_mediachange, am7990_mediastatus); |
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if (sc->sc_supmedia != NULL) { |
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for (i = 0; i < sc->sc_nsupmedia; i++) |
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ifmedia_add(&sc->sc_media, sc->sc_supmedia[i], |
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0, NULL); |
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ifmedia_set(&sc->sc_media, sc->sc_defaultmedia); |
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} else { |
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ifmedia_add(&sc->sc_media, IFM_ETHER|IFM_MANUAL, 0, NULL); |
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ifmedia_set(&sc->sc_media, IFM_ETHER|IFM_MANUAL); |
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} |
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/* Attach the interface. */ |
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if_attach(ifp); |
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ether_ifattach(ifp, sc->sc_enaddr); |
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#if NBPFILTER > 0 |
lance_config(&sc->lsc); |
bpfattach(&ifp->if_bpf, ifp, DLT_EN10MB, sizeof(struct ether_header)); |
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#endif |
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switch (sc->sc_memsize) { |
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case 8192: |
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sc->sc_nrbuf = 4; |
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sc->sc_ntbuf = 1; |
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break; |
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case 16384: |
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sc->sc_nrbuf = 8; |
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sc->sc_ntbuf = 2; |
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break; |
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case 32768: |
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sc->sc_nrbuf = 16; |
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sc->sc_ntbuf = 4; |
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break; |
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case 65536: |
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sc->sc_nrbuf = 32; |
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sc->sc_ntbuf = 8; |
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break; |
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case 131072: |
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sc->sc_nrbuf = 64; |
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sc->sc_ntbuf = 16; |
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break; |
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default: |
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panic("am7990_config: weird memory size"); |
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} |
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printf(": address %s\n", ether_sprintf(sc->sc_enaddr)); |
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printf("%s: %d receive buffers, %d transmit buffers\n", |
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sc->sc_dev.dv_xname, sc->sc_nrbuf, sc->sc_ntbuf); |
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sc->sc_sh = shutdownhook_establish(am7990_shutdown, sc); |
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if (sc->sc_sh == NULL) |
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panic("am7990_config: can't establish shutdownhook"); |
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sc->sc_rbufaddr = malloc(sc->sc_nrbuf * sizeof(int), M_DEVBUF, |
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M_WAITOK); |
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sc->sc_tbufaddr = malloc(sc->sc_ntbuf * sizeof(int), M_DEVBUF, |
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M_WAITOK); |
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mem = 0; |
mem = 0; |
sc->sc_initaddr = mem; |
sc->lsc.sc_initaddr = mem; |
mem += sizeof(struct leinit); |
mem += sizeof(struct leinit); |
sc->sc_rmdaddr = mem; |
sc->lsc.sc_rmdaddr = mem; |
mem += sizeof(struct lermd) * sc->sc_nrbuf; |
mem += sizeof(struct lermd) * sc->lsc.sc_nrbuf; |
sc->sc_tmdaddr = mem; |
sc->lsc.sc_tmdaddr = mem; |
mem += sizeof(struct letmd) * sc->sc_ntbuf; |
mem += sizeof(struct letmd) * sc->lsc.sc_ntbuf; |
for (i = 0; i < sc->sc_nrbuf; i++, mem += LEBLEN) |
for (i = 0; i < sc->lsc.sc_nrbuf; i++, mem += LEBLEN) |
sc->sc_rbufaddr[i] = mem; |
sc->lsc.sc_rbufaddr[i] = mem; |
for (i = 0; i < sc->sc_ntbuf; i++, mem += LEBLEN) |
for (i = 0; i < sc->lsc.sc_ntbuf; i++, mem += LEBLEN) |
sc->sc_tbufaddr[i] = mem; |
sc->lsc.sc_tbufaddr[i] = mem; |
#ifdef notyet |
#ifdef notyet |
if (mem > ...) |
if (mem > ...) |
panic(...); |
panic(...); |
#endif |
#endif |
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#if NRND > 0 |
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rnd_attach_source(&sc->rnd_source, sc->sc_dev.dv_xname, |
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RND_TYPE_NET); |
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#endif |
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} |
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void |
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am7990_reset(sc) |
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struct am7990_softc *sc; |
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{ |
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int s; |
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s = splimp(); |
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am7990_init(sc); |
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splx(s); |
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} |
} |
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/* |
/* |
Line 318 am7990_reset(sc) |
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Line 165 am7990_reset(sc) |
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*/ |
*/ |
void |
void |
am7990_meminit(sc) |
am7990_meminit(sc) |
register struct am7990_softc *sc; |
register struct lance_softc *sc; |
{ |
{ |
u_long a; |
u_long a; |
int bix; |
int bix; |
Line 346 am7990_meminit(sc) |
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Line 193 am7990_meminit(sc) |
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init.init_padr[0] = (myaddr[1] << 8) | myaddr[0]; |
init.init_padr[0] = (myaddr[1] << 8) | myaddr[0]; |
init.init_padr[1] = (myaddr[3] << 8) | myaddr[2]; |
init.init_padr[1] = (myaddr[3] << 8) | myaddr[2]; |
init.init_padr[2] = (myaddr[5] << 8) | myaddr[4]; |
init.init_padr[2] = (myaddr[5] << 8) | myaddr[4]; |
am7990_setladrf(&sc->sc_ethercom, init.init_ladrf); |
lance_setladrf(&sc->sc_ethercom, init.init_ladrf); |
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sc->sc_last_rd = 0; |
sc->sc_last_rd = 0; |
sc->sc_first_td = sc->sc_last_td = sc->sc_no_td = 0; |
sc->sc_first_td = sc->sc_last_td = sc->sc_no_td = 0; |
Line 390 am7990_meminit(sc) |
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Line 237 am7990_meminit(sc) |
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} |
} |
} |
} |
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void |
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am7990_stop(sc) |
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struct am7990_softc *sc; |
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{ |
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(*sc->sc_wrcsr)(sc, LE_CSR0, LE_C0_STOP); |
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} |
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/* |
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* Initialization of interface; set up initialization block |
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* and transmit/receive descriptor rings. |
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*/ |
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void |
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am7990_init(sc) |
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register struct am7990_softc *sc; |
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{ |
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register int timo; |
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u_long a; |
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(*sc->sc_wrcsr)(sc, LE_CSR0, LE_C0_STOP); |
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DELAY(100); |
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/* Newer LANCE chips have a reset register */ |
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if (sc->sc_hwreset) |
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(*sc->sc_hwreset)(sc); |
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/* Set the correct byte swapping mode, etc. */ |
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(*sc->sc_wrcsr)(sc, LE_CSR3, sc->sc_conf3); |
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/* Set up LANCE init block. */ |
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am7990_meminit(sc); |
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/* Give LANCE the physical address of its init block. */ |
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a = sc->sc_addr + LE_INITADDR(sc); |
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(*sc->sc_wrcsr)(sc, LE_CSR1, a); |
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(*sc->sc_wrcsr)(sc, LE_CSR2, a >> 16); |
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/* Try to initialize the LANCE. */ |
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DELAY(100); |
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(*sc->sc_wrcsr)(sc, LE_CSR0, LE_C0_INIT); |
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/* Wait for initialization to finish. */ |
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for (timo = 100000; timo; timo--) |
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if ((*sc->sc_rdcsr)(sc, LE_CSR0) & LE_C0_IDON) |
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break; |
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if ((*sc->sc_rdcsr)(sc, LE_CSR0) & LE_C0_IDON) { |
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/* Start the LANCE. */ |
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(*sc->sc_wrcsr)(sc, LE_CSR0, LE_C0_INEA | LE_C0_STRT | |
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LE_C0_IDON); |
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ifp->if_flags |= IFF_RUNNING; |
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ifp->if_flags &= ~IFF_OACTIVE; |
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ifp->if_timer = 0; |
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am7990_start(ifp); |
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} else |
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printf("%s: controller failed to initialize\n", |
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sc->sc_dev.dv_xname); |
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if (sc->sc_hwinit) |
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(*sc->sc_hwinit)(sc); |
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} |
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/* |
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* Routine to copy from mbuf chain to transmit buffer in |
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* network buffer memory. |
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*/ |
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integrate int |
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am7990_put(sc, boff, m) |
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struct am7990_softc *sc; |
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int boff; |
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register struct mbuf *m; |
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{ |
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register struct mbuf *n; |
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register int len, tlen = 0; |
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for (; m; m = n) { |
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len = m->m_len; |
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if (len == 0) { |
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MFREE(m, n); |
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continue; |
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} |
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(*sc->sc_copytobuf)(sc, mtod(m, caddr_t), boff, len); |
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boff += len; |
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tlen += len; |
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MFREE(m, n); |
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} |
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if (tlen < LEMINSIZE) { |
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(*sc->sc_zerobuf)(sc, boff, LEMINSIZE - tlen); |
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tlen = LEMINSIZE; |
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} |
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return (tlen); |
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} |
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/* |
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* Pull data off an interface. |
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* Len is length of data, with local net header stripped. |
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* We copy the data into mbufs. When full cluster sized units are present |
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* we copy into clusters. |
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*/ |
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integrate struct mbuf * |
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am7990_get(sc, boff, totlen) |
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struct am7990_softc *sc; |
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int boff, totlen; |
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{ |
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register struct mbuf *m; |
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struct mbuf *top, **mp; |
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int len; |
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MGETHDR(m, M_DONTWAIT, MT_DATA); |
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if (m == 0) |
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return (0); |
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m->m_pkthdr.rcvif = ifp; |
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m->m_pkthdr.len = totlen; |
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len = MHLEN; |
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top = 0; |
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mp = ⊤ |
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while (totlen > 0) { |
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if (top) { |
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MGET(m, M_DONTWAIT, MT_DATA); |
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if (m == 0) { |
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m_freem(top); |
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return 0; |
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} |
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len = MLEN; |
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} |
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if (totlen >= MINCLSIZE) { |
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MCLGET(m, M_DONTWAIT); |
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if ((m->m_flags & M_EXT) == 0) { |
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m_free(m); |
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m_freem(top); |
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return 0; |
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} |
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len = MCLBYTES; |
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} |
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if (!top) { |
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register int pad = |
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ALIGN(sizeof(struct ether_header)) - |
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sizeof(struct ether_header); |
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m->m_data += pad; |
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len -= pad; |
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} |
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m->m_len = len = min(totlen, len); |
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(*sc->sc_copyfrombuf)(sc, mtod(m, caddr_t), boff, len); |
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boff += len; |
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totlen -= len; |
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*mp = m; |
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mp = &m->m_next; |
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} |
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return (top); |
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} |
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/* |
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* Pass a packet to the higher levels. |
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*/ |
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integrate void |
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am7990_read(sc, boff, len) |
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register struct am7990_softc *sc; |
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int boff, len; |
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{ |
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struct mbuf *m; |
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struct ether_header *eh; |
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if (len <= sizeof(struct ether_header) || |
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len > ETHERMTU + sizeof(struct ether_header)) { |
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#ifdef LEDEBUG |
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printf("%s: invalid packet size %d; dropping\n", |
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sc->sc_dev.dv_xname, len); |
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#endif |
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ifp->if_ierrors++; |
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return; |
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} |
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/* Pull packet off interface. */ |
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m = am7990_get(sc, boff, len); |
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if (m == 0) { |
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ifp->if_ierrors++; |
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return; |
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} |
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ifp->if_ipackets++; |
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/* We assume that the header fit entirely in one mbuf. */ |
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eh = mtod(m, struct ether_header *); |
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#if NBPFILTER > 0 |
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/* |
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* Check if there's a BPF listener on this interface. |
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* If so, hand off the raw packet to BPF. |
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*/ |
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if (ifp->if_bpf) { |
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bpf_mtap(ifp->if_bpf, m); |
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#ifndef LANCE_REVC_BUG |
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/* |
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* Note that the interface cannot be in promiscuous mode if |
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* there are no BPF listeners. And if we are in promiscuous |
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* mode, we have to check if this packet is really ours. |
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*/ |
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if ((ifp->if_flags & IFF_PROMISC) != 0 && |
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(eh->ether_dhost[0] & 1) == 0 && /* !mcast and !bcast */ |
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ETHER_CMP(eh->ether_dhost, sc->sc_enaddr)) { |
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m_freem(m); |
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return; |
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} |
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#endif |
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} |
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#endif |
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#ifdef LANCE_REVC_BUG |
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/* |
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* The old LANCE (Rev. C) chips have a bug which causes |
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* garbage to be inserted in front of the received packet. |
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* The work-around is to ignore packets with an invalid |
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* destination address (garbage will usually not match). |
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* Of course, this precludes multicast support... |
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*/ |
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if (ETHER_CMP(eh->ether_dhost, sc->sc_enaddr) && |
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ETHER_CMP(eh->ether_dhost, bcast_enaddr)) { |
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m_freem(m); |
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return; |
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} |
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#endif |
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/* Pass the packet up, with the ether header sort-of removed. */ |
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m_adj(m, sizeof(struct ether_header)); |
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ether_input(ifp, eh, m); |
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} |
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integrate void |
integrate void |
am7990_rint(sc) |
am7990_rint(sc) |
struct am7990_softc *sc; |
struct lance_softc *sc; |
{ |
{ |
register int bix; |
register int bix; |
int rp; |
int rp; |
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if (sc->sc_debug) |
if (sc->sc_debug) |
am7990_recv_print(sc, sc->sc_last_rd); |
am7990_recv_print(sc, sc->sc_last_rd); |
#endif |
#endif |
am7990_read(sc, LE_RBUFADDR(sc, bix), |
lance_read(sc, LE_RBUFADDR(sc, bix), |
(int)rmd.rmd3 - 4); |
(int)rmd.rmd3 - 4); |
} |
} |
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rmd.rmd1_bits = LE_R1_OWN; |
rmd.rmd1_bits = LE_R1_OWN; |
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integrate void |
integrate void |
am7990_tint(sc) |
am7990_tint(sc) |
register struct am7990_softc *sc; |
register struct lance_softc *sc; |
{ |
{ |
register int bix; |
register int bix; |
struct letmd tmd; |
struct letmd tmd; |
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else if (tmd.tmd3 & LE_T3_UFLO) |
else if (tmd.tmd3 & LE_T3_UFLO) |
printf("%s: underflow\n", sc->sc_dev.dv_xname); |
printf("%s: underflow\n", sc->sc_dev.dv_xname); |
if (tmd.tmd3 & (LE_T3_BUFF | LE_T3_UFLO)) { |
if (tmd.tmd3 & (LE_T3_BUFF | LE_T3_UFLO)) { |
am7990_reset(sc); |
lance_reset((struct lance_softc *)sc); |
return; |
return; |
} |
} |
if (tmd.tmd3 & LE_T3_LCAR) { |
if (tmd.tmd3 & LE_T3_LCAR) { |
|
|
am7990_intr(arg) |
am7990_intr(arg) |
register void *arg; |
register void *arg; |
{ |
{ |
register struct am7990_softc *sc = arg; |
register struct lance_softc *sc = arg; |
register u_int16_t isr; |
register u_int16_t isr; |
|
|
isr = (*sc->sc_rdcsr)(sc, LE_CSR0) | sc->sc_saved_csr0; |
isr = (*sc->sc_rdcsr)(sc, LE_CSR0) | sc->sc_saved_csr0; |
Line 818 am7990_intr(arg) |
|
Line 436 am7990_intr(arg) |
|
} |
} |
if (isr & LE_C0_MERR) { |
if (isr & LE_C0_MERR) { |
printf("%s: memory error\n", sc->sc_dev.dv_xname); |
printf("%s: memory error\n", sc->sc_dev.dv_xname); |
am7990_reset(sc); |
lance_reset(sc); |
return (1); |
return (1); |
} |
} |
} |
} |
Line 826 am7990_intr(arg) |
|
Line 444 am7990_intr(arg) |
|
if ((isr & LE_C0_RXON) == 0) { |
if ((isr & LE_C0_RXON) == 0) { |
printf("%s: receiver disabled\n", sc->sc_dev.dv_xname); |
printf("%s: receiver disabled\n", sc->sc_dev.dv_xname); |
ifp->if_ierrors++; |
ifp->if_ierrors++; |
am7990_reset(sc); |
lance_reset(sc); |
return (1); |
return (1); |
} |
} |
if ((isr & LE_C0_TXON) == 0) { |
if ((isr & LE_C0_TXON) == 0) { |
printf("%s: transmitter disabled\n", sc->sc_dev.dv_xname); |
printf("%s: transmitter disabled\n", sc->sc_dev.dv_xname); |
ifp->if_oerrors++; |
ifp->if_oerrors++; |
am7990_reset(sc); |
lance_reset(sc); |
return (1); |
return (1); |
} |
} |
|
|
Line 854 am7990_intr(arg) |
|
Line 472 am7990_intr(arg) |
|
return (1); |
return (1); |
} |
} |
|
|
#undef ifp |
#undef ifp |
|
|
void |
|
am7990_watchdog(ifp) |
|
struct ifnet *ifp; |
|
{ |
|
struct am7990_softc *sc = ifp->if_softc; |
|
|
|
log(LOG_ERR, "%s: device timeout\n", sc->sc_dev.dv_xname); |
|
++ifp->if_oerrors; |
|
|
|
am7990_reset(sc); |
|
} |
|
|
|
int |
|
am7990_mediachange(ifp) |
|
struct ifnet *ifp; |
|
{ |
|
struct am7990_softc *sc = ifp->if_softc; |
|
|
|
if (sc->sc_mediachange) |
|
return ((*sc->sc_mediachange)(sc)); |
|
return (EINVAL); |
|
} |
|
|
|
void |
|
am7990_mediastatus(ifp, ifmr) |
|
struct ifnet *ifp; |
|
struct ifmediareq *ifmr; |
|
{ |
|
struct am7990_softc *sc = ifp->if_softc; |
|
|
|
if ((ifp->if_flags & IFF_UP) == 0) |
|
return; |
|
|
|
ifmr->ifm_status = IFM_AVALID; |
|
if (sc->sc_havecarrier) |
|
ifmr->ifm_status |= IFM_ACTIVE; |
|
|
|
if (sc->sc_mediastatus) |
|
(*sc->sc_mediastatus)(sc, ifmr); |
|
} |
|
|
|
/* |
/* |
* Setup output on interface. |
* Setup output on interface. |
|
|
am7990_start(ifp) |
am7990_start(ifp) |
register struct ifnet *ifp; |
register struct ifnet *ifp; |
{ |
{ |
register struct am7990_softc *sc = ifp->if_softc; |
register struct lance_softc *sc = ifp->if_softc; |
register int bix; |
register int bix; |
register struct mbuf *m; |
register struct mbuf *m; |
struct letmd tmd; |
struct letmd tmd; |
Line 945 am7990_start(ifp) |
|
Line 522 am7990_start(ifp) |
|
/* |
/* |
* Copy the mbuf chain into the transmit buffer. |
* Copy the mbuf chain into the transmit buffer. |
*/ |
*/ |
len = am7990_put(sc, LE_TBUFADDR(sc, bix), m); |
len = lance_put(sc, LE_TBUFADDR(sc, bix), m); |
|
|
#ifdef LEDEBUG |
#ifdef LEDEBUG |
if (len > ETHERMTU + sizeof(struct ether_header)) |
if (len > ETHERMTU + sizeof(struct ether_header)) |
Line 983 am7990_start(ifp) |
|
Line 560 am7990_start(ifp) |
|
sc->sc_last_td = bix; |
sc->sc_last_td = bix; |
} |
} |
|
|
/* |
|
* Process an ioctl request. |
|
*/ |
|
int |
|
am7990_ioctl(ifp, cmd, data) |
|
register struct ifnet *ifp; |
|
u_long cmd; |
|
caddr_t data; |
|
{ |
|
register struct am7990_softc *sc = ifp->if_softc; |
|
struct ifaddr *ifa = (struct ifaddr *)data; |
|
struct ifreq *ifr = (struct ifreq *)data; |
|
int s, error = 0; |
|
|
|
s = splimp(); |
|
|
|
switch (cmd) { |
|
|
|
case SIOCSIFADDR: |
|
ifp->if_flags |= IFF_UP; |
|
|
|
switch (ifa->ifa_addr->sa_family) { |
|
#ifdef INET |
|
case AF_INET: |
|
am7990_init(sc); |
|
arp_ifinit(ifp, ifa); |
|
break; |
|
#endif |
|
#ifdef NS |
|
case AF_NS: |
|
{ |
|
register struct ns_addr *ina = &IA_SNS(ifa)->sns_addr; |
|
|
|
if (ns_nullhost(*ina)) |
|
ina->x_host = |
|
*(union ns_host *)LLADDR(ifp->if_sadl); |
|
else { |
|
bcopy(ina->x_host.c_host, |
|
LLADDR(ifp->if_sadl), |
|
sizeof(sc->sc_enaddr)); |
|
} |
|
/* Set new address. */ |
|
am7990_init(sc); |
|
break; |
|
} |
|
#endif |
|
default: |
|
am7990_init(sc); |
|
break; |
|
} |
|
break; |
|
|
|
#if defined(CCITT) && defined(LLC) |
|
case SIOCSIFCONF_X25: |
|
ifp->if_flags |= IFF_UP; |
|
ifa->ifa_rtrequest = cons_rtrequest; /* XXX */ |
|
error = x25_llcglue(PRC_IFUP, ifa->ifa_addr); |
|
if (error == 0) |
|
am7990_init(sc); |
|
break; |
|
#endif /* CCITT && LLC */ |
|
|
|
case SIOCSIFFLAGS: |
|
if ((ifp->if_flags & IFF_UP) == 0 && |
|
(ifp->if_flags & IFF_RUNNING) != 0) { |
|
/* |
|
* If interface is marked down and it is running, then |
|
* stop it. |
|
*/ |
|
am7990_stop(sc); |
|
ifp->if_flags &= ~IFF_RUNNING; |
|
} else if ((ifp->if_flags & IFF_UP) != 0 && |
|
(ifp->if_flags & IFF_RUNNING) == 0) { |
|
/* |
|
* If interface is marked up and it is stopped, then |
|
* start it. |
|
*/ |
|
am7990_init(sc); |
|
} else { |
|
/* |
|
* Reset the interface to pick up changes in any other |
|
* flags that affect hardware registers. |
|
*/ |
|
/*am7990_stop(sc);*/ |
|
am7990_init(sc); |
|
} |
|
#ifdef LEDEBUG |
|
if (ifp->if_flags & IFF_DEBUG) |
|
sc->sc_debug = 1; |
|
else |
|
sc->sc_debug = 0; |
|
#endif |
|
break; |
|
|
|
case SIOCADDMULTI: |
|
case SIOCDELMULTI: |
|
error = (cmd == SIOCADDMULTI) ? |
|
ether_addmulti(ifr, &sc->sc_ethercom) : |
|
ether_delmulti(ifr, &sc->sc_ethercom); |
|
|
|
if (error == ENETRESET) { |
|
/* |
|
* Multicast list has changed; set the hardware filter |
|
* accordingly. |
|
*/ |
|
am7990_reset(sc); |
|
error = 0; |
|
} |
|
break; |
|
|
|
case SIOCGIFMEDIA: |
|
case SIOCSIFMEDIA: |
|
error = ifmedia_ioctl(ifp, ifr, &sc->sc_media, cmd); |
|
break; |
|
|
|
default: |
|
error = EINVAL; |
|
break; |
|
} |
|
|
|
splx(s); |
|
return (error); |
|
} |
|
|
|
hide void |
|
am7990_shutdown(arg) |
|
void *arg; |
|
{ |
|
|
|
am7990_stop((struct am7990_softc *)arg); |
|
} |
|
|
|
#ifdef LEDEBUG |
#ifdef LEDEBUG |
void |
void |
am7990_recv_print(sc, no) |
am7990_recv_print(sc, no) |
struct am7990_softc *sc; |
struct lance_softc *sc; |
int no; |
int no; |
{ |
{ |
struct lermd rmd; |
struct lermd rmd; |
Line 1145 am7990_recv_print(sc, no) |
|
Line 590 am7990_recv_print(sc, no) |
|
|
|
void |
void |
am7990_xmit_print(sc, no) |
am7990_xmit_print(sc, no) |
struct am7990_softc *sc; |
struct lance_softc *sc; |
int no; |
int no; |
{ |
{ |
struct letmd tmd; |
struct letmd tmd; |
Line 1170 am7990_xmit_print(sc, no) |
|
Line 615 am7990_xmit_print(sc, no) |
|
} |
} |
} |
} |
#endif /* LEDEBUG */ |
#endif /* LEDEBUG */ |
|
|
/* |
|
* Set up the logical address filter. |
|
*/ |
|
void |
|
am7990_setladrf(ac, af) |
|
struct ethercom *ac; |
|
u_int16_t *af; |
|
{ |
|
struct ifnet *ifp = &ac->ec_if; |
|
struct ether_multi *enm; |
|
register u_char *cp; |
|
register u_int32_t crc; |
|
static const u_int32_t crctab[] = { |
|
0x00000000, 0x1db71064, 0x3b6e20c8, 0x26d930ac, |
|
0x76dc4190, 0x6b6b51f4, 0x4db26158, 0x5005713c, |
|
0xedb88320, 0xf00f9344, 0xd6d6a3e8, 0xcb61b38c, |
|
0x9b64c2b0, 0x86d3d2d4, 0xa00ae278, 0xbdbdf21c |
|
}; |
|
register int len; |
|
struct ether_multistep step; |
|
|
|
/* |
|
* 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) |
|
goto allmulti; |
|
|
|
af[0] = af[1] = af[2] = af[3] = 0x0000; |
|
ETHER_FIRST_MULTI(step, ac, enm); |
|
while (enm != NULL) { |
|
if (ETHER_CMP(enm->enm_addrlo, enm->enm_addrhi)) { |
|
/* |
|
* We must listen to a range of multicast addresses. |
|
* For now, just accept all multicasts, rather than |
|
* trying to set only those filter bits needed to match |
|
* the range. (At this time, the only use of address |
|
* ranges is for IP multicast routing, for which the |
|
* range is big enough to require all bits set.) |
|
*/ |
|
goto allmulti; |
|
} |
|
|
|
cp = enm->enm_addrlo; |
|
crc = 0xffffffff; |
|
for (len = sizeof(enm->enm_addrlo); --len >= 0;) { |
|
crc ^= *cp++; |
|
crc = (crc >> 4) ^ crctab[crc & 0xf]; |
|
crc = (crc >> 4) ^ crctab[crc & 0xf]; |
|
} |
|
/* Just want the 6 most significant bits. */ |
|
crc >>= 26; |
|
|
|
/* Set the corresponding bit in the filter. */ |
|
af[crc >> 4] |= 1 << (crc & 0xf); |
|
|
|
ETHER_NEXT_MULTI(step, enm); |
|
} |
|
ifp->if_flags &= ~IFF_ALLMULTI; |
|
return; |
|
|
|
allmulti: |
|
ifp->if_flags |= IFF_ALLMULTI; |
|
af[0] = af[1] = af[2] = af[3] = 0xffff; |
|
} |
|
|
|
|
|
/* |
|
* 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 |
|
am7990_copytobuf_contig(sc, from, boff, len) |
|
struct am7990_softc *sc; |
|
void *from; |
|
int boff, len; |
|
{ |
|
volatile caddr_t buf = sc->sc_mem; |
|
|
|
/* |
|
* Just call bcopy() to do the work. |
|
*/ |
|
bcopy(from, buf + boff, len); |
|
} |
|
|
|
void |
|
am7990_copyfrombuf_contig(sc, to, boff, len) |
|
struct am7990_softc *sc; |
|
void *to; |
|
int boff, len; |
|
{ |
|
volatile caddr_t buf = sc->sc_mem; |
|
|
|
/* |
|
* Just call bcopy() to do the work. |
|
*/ |
|
bcopy(buf + boff, to, len); |
|
} |
|
|
|
void |
|
am7990_zerobuf_contig(sc, boff, len) |
|
struct am7990_softc *sc; |
|
int boff, len; |
|
{ |
|
volatile caddr_t buf = sc->sc_mem; |
|
|
|
/* |
|
* Just let bzero() do the work |
|
*/ |
|
bzero(buf + boff, 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. |
|
*/ |
|
|
|
void |
|
am7990_copytobuf_gap2(sc, fromv, boff, len) |
|
struct am7990_softc *sc; |
|
void *fromv; |
|
int boff; |
|
register int len; |
|
{ |
|
volatile caddr_t buf = sc->sc_mem; |
|
register caddr_t from = fromv; |
|
register volatile u_int16_t *bptr; |
|
|
|
if (boff & 0x1) { |
|
/* handle unaligned first byte */ |
|
bptr = ((volatile u_int16_t *)buf) + (boff - 1); |
|
*bptr = (*from++ << 8) | (*bptr & 0xff); |
|
bptr += 2; |
|
len--; |
|
} else |
|
bptr = ((volatile u_int16_t *)buf) + boff; |
|
while (len > 1) { |
|
*bptr = (from[1] << 8) | (from[0] & 0xff); |
|
bptr += 2; |
|
from += 2; |
|
len -= 2; |
|
} |
|
if (len == 1) |
|
*bptr = (u_int16_t)*from; |
|
} |
|
|
|
void |
|
am7990_copyfrombuf_gap2(sc, tov, boff, len) |
|
struct am7990_softc *sc; |
|
void *tov; |
|
int boff, len; |
|
{ |
|
volatile caddr_t buf = sc->sc_mem; |
|
register caddr_t to = tov; |
|
register volatile u_int16_t *bptr; |
|
register u_int16_t tmp; |
|
|
|
if (boff & 0x1) { |
|
/* handle unaligned first byte */ |
|
bptr = ((volatile u_int16_t *)buf) + (boff - 1); |
|
*to++ = (*bptr >> 8) & 0xff; |
|
bptr += 2; |
|
len--; |
|
} else |
|
bptr = ((volatile u_int16_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; |
|
} |
|
|
|
void |
|
am7990_zerobuf_gap2(sc, boff, len) |
|
struct am7990_softc *sc; |
|
int boff, len; |
|
{ |
|
volatile caddr_t buf = sc->sc_mem; |
|
register volatile u_int16_t *bptr; |
|
|
|
if ((unsigned)boff & 0x1) { |
|
bptr = ((volatile u_int16_t *)buf) + (boff - 1); |
|
*bptr &= 0xff; |
|
bptr += 2; |
|
len--; |
|
} else |
|
bptr = ((volatile u_int16_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. |
|
*/ |
|
|
|
void |
|
am7990_copytobuf_gap16(sc, fromv, boff, len) |
|
struct am7990_softc *sc; |
|
void *fromv; |
|
int boff; |
|
register int len; |
|
{ |
|
volatile caddr_t buf = sc->sc_mem; |
|
register caddr_t from = fromv; |
|
register caddr_t bptr; |
|
register int xfer; |
|
|
|
bptr = buf + ((boff << 1) & ~0x1f); |
|
boff &= 0xf; |
|
xfer = min(len, 16 - boff); |
|
while (len > 0) { |
|
bcopy(from, bptr + boff, xfer); |
|
from += xfer; |
|
bptr += 32; |
|
boff = 0; |
|
len -= xfer; |
|
xfer = min(len, 16); |
|
} |
|
} |
|
|
|
void |
|
am7990_copyfrombuf_gap16(sc, tov, boff, len) |
|
struct am7990_softc *sc; |
|
void *tov; |
|
int boff, len; |
|
{ |
|
volatile caddr_t buf = sc->sc_mem; |
|
register caddr_t to = tov; |
|
register caddr_t bptr; |
|
register int xfer; |
|
|
|
bptr = buf + ((boff << 1) & ~0x1f); |
|
boff &= 0xf; |
|
xfer = min(len, 16 - boff); |
|
while (len > 0) { |
|
bcopy(bptr + boff, to, xfer); |
|
to += xfer; |
|
bptr += 32; |
|
boff = 0; |
|
len -= xfer; |
|
xfer = min(len, 16); |
|
} |
|
} |
|
|
|
void |
|
am7990_zerobuf_gap16(sc, boff, len) |
|
struct am7990_softc *sc; |
|
int boff, len; |
|
{ |
|
volatile caddr_t buf = sc->sc_mem; |
|
register caddr_t bptr; |
|
register int xfer; |
|
|
|
bptr = buf + ((boff << 1) & ~0x1f); |
|
boff &= 0xf; |
|
xfer = min(len, 16 - boff); |
|
while (len > 0) { |
|
bzero(bptr + boff, xfer); |
|
bptr += 32; |
|
boff = 0; |
|
len -= xfer; |
|
xfer = min(len, 16); |
|
} |
|
} |
|
#endif /* Example only */ |
|