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From: Pyun YongHyeon <yongari@FreeBSD.org>
Date: Fri, 14 May 2010 16:55:13 +0000 (UTC)
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Subject: svn commit: r208081 - head/sys/dev/fxp
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Author: yongari
Date: Fri May 14 16:55:13 2010
New Revision: 208081
URL: http://svn.freebsd.org/changeset/base/208081

Log:
  Controller updates RFA via DMA so driver needs synchronization.
  Add missing BUS_DMASYNC_POSTWRITE and BUS_DMASYNC_PREREAD.

Modified:
  head/sys/dev/fxp/if_fxp.c

Modified: head/sys/dev/fxp/if_fxp.c
==============================================================================
--- head/sys/dev/fxp/if_fxp.c	Fri May 14 15:47:51 2010	(r208080)
+++ head/sys/dev/fxp/if_fxp.c	Fri May 14 16:55:13 2010	(r208081)
@@ -1899,7 +1899,7 @@ fxp_intr_body(struct fxp_softc *sc, stru
 		rfa = (struct fxp_rfa *)(m->m_ext.ext_buf +
 		    RFA_ALIGNMENT_FUDGE);
 		bus_dmamap_sync(sc->fxp_rxmtag, rxp->rx_map,
-		    BUS_DMASYNC_POSTREAD);
+		    BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE);
 
 #ifdef DEVICE_POLLING /* loop at most count times if count >=0 */
 		if (count >= 0 && count-- == 0) {
@@ -2659,7 +2659,7 @@ fxp_add_rfabuf(struct fxp_softc *sc, str
 		le32enc(&p_rfa->link_addr, rxp->rx_addr);
 		p_rfa->rfa_control = 0;
 		bus_dmamap_sync(sc->fxp_rxmtag, p_rx->rx_map,
-		    BUS_DMASYNC_PREWRITE);
+		    BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
 	} else {
 		rxp->rx_next = NULL;
 		sc->fxp_desc.rx_head = rxp;