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Clear done_head in the HCCA *before* acknoledging the interrupt. 

Driver lost some completed transfers under heavy loads.
This commit is contained in:
minoura 2002-05-26 03:10:02 +00:00
parent 66f94c684f
commit 78d97e78f0
1 changed files with 3 additions and 3 deletions
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6
sys/dev/usb/ohci.c
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@ -1,4 +1,4 @@
/* $NetBSD: ohci.c,v 1.123 2002/05/19 06:24:31 augustss Exp $ */ /* $NetBSD: ohci.c,v 1.124 2002/05/26 03:10:02 minoura Exp $ */
/* $FreeBSD: src/sys/dev/usb/ohci.c,v 1.22 1999/11/17 22:33:40 n_hibma Exp $ */ /* $FreeBSD: src/sys/dev/usb/ohci.c,v 1.22 1999/11/17 22:33:40 n_hibma Exp $ */
/* /*
@ -46,7 +46,7 @@
*/ */
#include <sys/cdefs.h> #include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: ohci.c,v 1.123 2002/05/19 06:24:31 augustss Exp $"); __KERNEL_RCSID(0, "$NetBSD: ohci.c,v 1.124 2002/05/26 03:10:02 minoura Exp $");
#include <sys/param.h> #include <sys/param.h>
#include <sys/systm.h> #include <sys/systm.h>
@ -1115,6 +1115,7 @@ ohci_intr1(ohci_softc_t *sc)
intrs = OHCI_WDH; intrs = OHCI_WDH;
if (done & OHCI_DONE_INTRS) if (done & OHCI_DONE_INTRS)
intrs |= OREAD4(sc, OHCI_INTERRUPT_STATUS); intrs |= OREAD4(sc, OHCI_INTERRUPT_STATUS);
sc->sc_hcca->hcca_done_head = 0;
} else } else
intrs = OREAD4(sc, OHCI_INTERRUPT_STATUS); intrs = OREAD4(sc, OHCI_INTERRUPT_STATUS);
@ -1145,7 +1146,6 @@ ohci_intr1(ohci_softc_t *sc)
} }
if (eintrs & OHCI_WDH) { if (eintrs & OHCI_WDH) {
ohci_add_done(sc, done &~ OHCI_DONE_INTRS); ohci_add_done(sc, done &~ OHCI_DONE_INTRS);
sc->sc_hcca->hcca_done_head = 0;
usb_schedsoftintr(&sc->sc_bus); usb_schedsoftintr(&sc->sc_bus);
eintrs &= ~OHCI_WDH; eintrs &= ~OHCI_WDH;
} }