svn commit: r196830 - in stable/8/sys: . amd64/include/xen cddl/contrib/opensolaris contrib/dev/acpica contrib/pf dev/txp dev/xen/xenpci

[Pyun YongHyeon]

Author: yongari
Date: Fri Sep  4 16:41:17 2009
New Revision: 196830
URL: http://svn.freebsd.org/changeset/base/196830

Log:
  MFC r196721:
    Make sure rx descriptor ring align on 16 bytes. I guess the
    alignment requirement could be multiple of 4 bytes but I think
    using descriptor size would make intention clearer.
    Previously the size of rx descriptor was not power of 2 so it
    caused panic in bus_dmamem_alloc(9).
  
    Reported by:	Jeff Blank (jb000003 <> mr-happy dot com)
  Approved by:	re (kib)

Modified:
  stable/8/sys/   (props changed)
  stable/8/sys/amd64/include/xen/   (props changed)
  stable/8/sys/cddl/contrib/opensolaris/   (props changed)
  stable/8/sys/contrib/dev/acpica/   (props changed)
  stable/8/sys/contrib/pf/   (props changed)
  stable/8/sys/dev/txp/if_txp.c
  stable/8/sys/dev/xen/xenpci/   (props changed)

Modified: stable/8/sys/dev/txp/if_txp.c
==============================================================================
--- stable/8/sys/dev/txp/if_txp.c	Fri Sep  4 14:53:12 2009	(r196829)
+++ stable/8/sys/dev/txp/if_txp.c	Fri Sep  4 16:41:17 2009	(r196830)
@@ -1389,7 +1389,8 @@ txp_alloc_rings(struct txp_softc *sc)
 
 	/* High priority rx ring. */
 	error = txp_dma_alloc(sc, "hi priority rx ring",
-	    &sc->sc_cdata.txp_rxhiring_tag, sizeof(struct txp_rx_desc), 0,
+	    &sc->sc_cdata.txp_rxhiring_tag,
+	    roundup(sizeof(struct txp_rx_desc), 16), 0,
 	    &sc->sc_cdata.txp_rxhiring_map, (void **)&sc->sc_ldata.txp_rxhiring,
 	    sizeof(struct txp_rx_desc) * RX_ENTRIES,
 	    &sc->sc_ldata.txp_rxhiring_paddr);
@@ -1409,7 +1410,8 @@ txp_alloc_rings(struct txp_softc *sc)
 
 	/* Low priority rx ring. */
 	error = txp_dma_alloc(sc, "low priority rx ring",
-	    &sc->sc_cdata.txp_rxloring_tag, sizeof(struct txp_rx_desc), 0,
+	    &sc->sc_cdata.txp_rxloring_tag,
+	    roundup(sizeof(struct txp_rx_desc), 16), 0,
 	    &sc->sc_cdata.txp_rxloring_map, (void **)&sc->sc_ldata.txp_rxloring,
 	    sizeof(struct txp_rx_desc) * RX_ENTRIES,
 	    &sc->sc_ldata.txp_rxloring_paddr);