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Deal with sun4m le/ledma. Work around spurious interrupt problem (aaron).

This commit is contained in:
pk 1996-03-31 22:22:52 +00:00
parent bb0897eec6
commit 345295ff08
1 changed files with 35 additions and 6 deletions
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37
sys/arch/sparc/dev/if_le.c
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@ -1,6 +1,8 @@
/* $NetBSD: if_le.c,v 1.26 1996/03/17 02:01:10 thorpej Exp $ */
/* $NetBSD: if_le.c,v 1.27 1996/03/31 22:22:52 pk Exp $ */
/*-
* Copyright (c) 1996
* The President and Fellows of Harvard University. All rights reserved.
* Copyright (c) 1995 Charles M. Hannum. All rights reserved.
* Copyright (c) 1992, 1993
* The Regents of the University of California. All rights reserved.
@ -18,6 +20,8 @@
* 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 Aaron Brown and
* Harvard University.
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
@ -75,6 +79,31 @@ int lematch __P((struct device *, void *, void *));
void leattach __P((struct device *, struct device *, void *));
int leintr __P((void *));
#if defined(SUN4M) /* XXX */
int myleintr __P((void *));
int ledmaintr __P((struct dma_softc *));
int
myleintr(arg)
void *arg;
{
register struct le_softc *sc = arg;
if (sc->sc_dma->sc_regs->csr & D_ERR_PEND)
return ledmaintr(sc->sc_dma);
/*
* XXX There is a bug somewhere in the interrupt code that causes stray
* ethernet interrupts under high network load. This bug has been
* impossible to locate, so until it is found, we just ignore stray
* interrupts, as they do not in fact correspond to dropped packets.
*/
/* return */ leintr(arg);
return 1;
}
#endif
struct cfattach le_ca = {
sizeof(struct le_softc), lematch, leattach
};
@ -134,7 +163,9 @@ leattach(parent, self, aux)
int pri;
struct bootpath *bp;
u_long laddr;
#if defined(SUN4C) || defined(SUN4M)
int dmachild = strncmp(parent->dv_xname, "ledma", 5) == 0;
#endif
/* XXX the following declarations should be elsewhere */
extern void myetheraddr(u_char *);
@ -179,12 +210,10 @@ leattach(parent, self, aux)
case BUS_SBUS:
sc->sc_sd.sd_reset = (void *)lereset;
if (dmachild) {
#ifdef notyet
sc->sc_dma = (struct dma_softc *)parent;
sc->sc_dma->sc_le = sc;
sc->sc_dma->sc_regs->en_bar = laddr & 0xff000000;
sbus_establish(&sc->sc_sd, parent);
#endif
} else {
sc->sc_dma = NULL;
sbus_establish(&sc->sc_sd, &sc->sc_dev);
@ -205,7 +234,7 @@ leattach(parent, self, aux)
sc->sc_ih.ih_fun = leintr;
#if defined(SUN4M) /*XXX*/
if (cputyp == CPU_SUN4M)
if (CPU_ISSUN4M)
sc->sc_ih.ih_fun = myleintr;
#endif
sc->sc_ih.ih_arg = sc;