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No need to BUS_DMASYNC_PREREAD the transmit data buffer. Fixes "NFS writes 

being corrupted?" issue on ODROID-C1 as seen on port-arm.
This commit is contained in:
jmcneill 2015-08-21 20:12:29 +00:00
parent 719aab5470
commit 4a5c3abbcc
1 changed files with 3 additions and 3 deletions
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6
sys/dev/ic/dwc_gmac.c
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@ -1,4 +1,4 @@
/* $NetBSD: dwc_gmac.c,v 1.33 2015/06/12 11:54:39 tnn Exp $ */ /* $NetBSD: dwc_gmac.c,v 1.34 2015/08/21 20:12:29 jmcneill Exp $ */
/*- /*-
* Copyright (c) 2013, 2014 The NetBSD Foundation, Inc. * Copyright (c) 2013, 2014 The NetBSD Foundation, Inc.
@ -41,7 +41,7 @@
#include <sys/cdefs.h> #include <sys/cdefs.h>
__KERNEL_RCSID(1, "$NetBSD: dwc_gmac.c,v 1.33 2015/06/12 11:54:39 tnn Exp $"); __KERNEL_RCSID(1, "$NetBSD: dwc_gmac.c,v 1.34 2015/08/21 20:12:29 jmcneill Exp $");
/* #define DWC_GMAC_DEBUG 1 */ /* #define DWC_GMAC_DEBUG 1 */
@ -917,7 +917,7 @@ dwc_gmac_queue(struct dwc_gmac_softc *sc, struct mbuf *m0)
data->td_active = map; data->td_active = map;
bus_dmamap_sync(sc->sc_dmat, map, 0, map->dm_mapsize, bus_dmamap_sync(sc->sc_dmat, map, 0, map->dm_mapsize,
BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE); BUS_DMASYNC_PREWRITE);
/* Pass first to device */ /* Pass first to device */
sc->sc_txq.t_desc[first].ddesc_status = sc->sc_txq.t_desc[first].ddesc_status =