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MFC: sys/dev/le/am7990.c 1.1, sys/dev/le/am79900.c 1.1,

Browse Source 
sys/dev/le/am79900reg.h 1.1, sys/dev/le/am79900var.h 1.1,
     sys/dev/le/am7990reg.h 1.1, sys/dev/le/am7990var.h 1.1,
     sys/dev/le/if_le_ledma.c 1.1, sys/dev/le/if_le_pci.c 1.1,
     sys/dev/le/lance.c 1.1, sys/dev/le/lancereg.h 1.1,
     sys/dev/le/lancevar.h 1.1

Add le(4), a driver for AMD Am7900 LANCE and Am79C9xx PCnet NICs,
ported from NetBSD.
This version differs from HEAD in that if_le_ledma.c inlines
lsi64854_enet_intr() from rev. 1.8 of sys/sparc64/sbus/lsi64854.c
in le_dma_hwintr() in order to not break the API of the LSI64854
driver in RELENG_6.

Approved by:	re (scottl)
This commit is contained in:
marius 2006-02-13 11:30:40 +00:00
parent 5e734a4bf4
commit 6ab8768830
1 changed files with 40 additions and 0 deletions
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40
sys/dev/le/if_le_ledma.c
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@ -91,6 +91,7 @@ struct le_dma_softc {
bus_addr_t sc_laddr; /* LANCE DMA address */
struct lsi64854_softc *sc_dma; /* pointer to DMA engine */
int sc_dodrain;
};
static device_probe_t le_dma_probe;
@ -258,7 +259,46 @@ le_dma_hwintr(struct lance_softc *sc)
struct le_dma_softc *lesc = (struct le_dma_softc *)sc;
struct lsi64854_softc *dma = lesc->sc_dma;
#if 0
return (DMA_INTR(dma));
#else
/*
* Inlined version of lsi64854_enet_intr() from rev. 1.8 of
* sys/sparc64/sbus/lsi64854.c in order to not break the API
* of the LSI64854 driver in RELENG_6.
*/
uint32_t csr;
int i, rv;
csr = L64854_GCSR(dma);
/* If the DMA logic shows an interrupt, claim it */
rv = ((csr & E_INT_PEND) != 0) ? 1 : 0;
if (csr & (E_ERR_PEND|E_SLAVE_ERR)) {
device_printf(dma->sc_dev, "error: csr=%b\n", csr,
EDMACSR_BITS);
csr &= ~L64854_EN_DMA; /* Stop DMA */
/* Invalidate the queue; SLAVE_ERR bit is write-to-clear */
csr |= E_INVALIDATE|E_SLAVE_ERR;
L64854_SCSR(dma, csr);
/* Will be drained with the LE_C0_IDON interrupt. */
lesc->sc_dodrain = 1;
return (-1);
}
/* XXX - is this necessary with E_DSBL_WR_INVAL on? */
if (lesc->sc_dodrain) {
i = 10;
csr |= E_DRAIN;
L64854_SCSR(dma, csr);
while (i-- > 0 && (L64854_GCSR(dma) & E_DRAINING))
DELAY(1);
lesc->sc_dodrain = 0;
}
return (rv);
#endif
}
static void