svn commit: r233025 - in stable/8/sys/dev: advansys ahb aic7xxx amr an arcmsr asr buslogic ciss cxgb de dpt en glxsb hatm hifn hptiop hptmv ida if_ndis iir ips ipw ixgb ixgbe lmc mfi mge mlx mly mx...

Scott Long scottl at FreeBSD.org
Fri Mar 16 09:23:01 UTC 2012


Author: scottl
Date: Fri Mar 16 09:22:59 2012
New Revision: 233025
URL: http://svn.freebsd.org/changeset/base/233025

Log:
  MFC 232854,232874,232882,232883,232886 for bus_get_dma_tag()

Modified:
  stable/8/sys/dev/advansys/adv_eisa.c
  stable/8/sys/dev/advansys/adv_isa.c
  stable/8/sys/dev/advansys/adv_pci.c
  stable/8/sys/dev/advansys/adw_pci.c
  stable/8/sys/dev/ahb/ahb.c
  stable/8/sys/dev/aic7xxx/ahc_eisa.c
  stable/8/sys/dev/aic7xxx/ahc_isa.c
  stable/8/sys/dev/aic7xxx/ahc_pci.c
  stable/8/sys/dev/aic7xxx/ahd_pci.c
  stable/8/sys/dev/amr/amr_pci.c
  stable/8/sys/dev/an/if_an_pci.c
  stable/8/sys/dev/arcmsr/arcmsr.c
  stable/8/sys/dev/asr/asr.c
  stable/8/sys/dev/buslogic/bt_pci.c
  stable/8/sys/dev/ciss/ciss.c
  stable/8/sys/dev/cxgb/cxgb_sge.c
  stable/8/sys/dev/de/if_de.c
  stable/8/sys/dev/dpt/dpt_pci.c
  stable/8/sys/dev/en/midway.c
  stable/8/sys/dev/glxsb/glxsb.c
  stable/8/sys/dev/hatm/if_hatm.c
  stable/8/sys/dev/hifn/hifn7751.c
  stable/8/sys/dev/hptiop/hptiop.c
  stable/8/sys/dev/hptmv/entry.c
  stable/8/sys/dev/ida/ida_pci.c
  stable/8/sys/dev/if_ndis/if_ndis_pci.c
  stable/8/sys/dev/iir/iir_pci.c
  stable/8/sys/dev/ips/ips_pci.c
  stable/8/sys/dev/ipw/if_ipw.c
  stable/8/sys/dev/ipw/if_ipwvar.h
  stable/8/sys/dev/ixgb/if_ixgb.c
  stable/8/sys/dev/ixgbe/ixgbe.c
  stable/8/sys/dev/ixgbe/ixv.c
  stable/8/sys/dev/lmc/if_lmc.c
  stable/8/sys/dev/mfi/mfi_pci.c
  stable/8/sys/dev/mge/if_mge.c
  stable/8/sys/dev/mlx/mlx_pci.c
  stable/8/sys/dev/mly/mly.c
  stable/8/sys/dev/mxge/if_mxge.c
  stable/8/sys/dev/nve/if_nve.c
  stable/8/sys/dev/patm/if_patm_attach.c
  stable/8/sys/dev/safe/safe.c
  stable/8/sys/dev/trm/trm.c
  stable/8/sys/dev/twe/twe_freebsd.c
  stable/8/sys/dev/tws/tws.c
  stable/8/sys/dev/ubsec/ubsec.c
  stable/8/sys/dev/wds/wd7000.c
  stable/8/sys/dev/xen/blkfront/blkfront.c
Directory Properties:
  stable/8/sys/   (props changed)

Modified: stable/8/sys/dev/advansys/adv_eisa.c
==============================================================================
--- stable/8/sys/dev/advansys/adv_eisa.c	Fri Mar 16 08:46:58 2012	(r233024)
+++ stable/8/sys/dev/advansys/adv_eisa.c	Fri Mar 16 09:22:59 2012	(r233025)
@@ -171,9 +171,8 @@ adv_eisa_attach(device_t dev)
 		 * Allocate a parent dmatag for all tags created
 		 * by the MI portions of the advansys driver
 		 */
-		/* XXX Should be a child of the PCI bus dma tag */
 		error = bus_dma_tag_create(
-				/* parent	*/ NULL,
+				/* parent	*/ bus_get_dma_tag(dev),
 				/* alignment	*/ 1,
 				/* boundary	*/ 0,
 				/* lowaddr	*/ ADV_EISA_MAX_DMA_ADDR,
@@ -211,9 +210,8 @@ adv_eisa_attach(device_t dev)
 		 * Allocate a parent dmatag for all tags created
 		 * by the MI portions of the advansys driver
 		 */
-		/* XXX Should be a child of the PCI bus dma tag */
 		error = bus_dma_tag_create(
-				/* parent	*/ NULL,
+				/* parent	*/ bus_get_dma_tag(dev),
 				/* alignment	*/ 1,
 				/* boundary	*/ 0,
 				/* lowaddr	*/ ADV_EISA_MAX_DMA_ADDR,

Modified: stable/8/sys/dev/advansys/adv_isa.c
==============================================================================
--- stable/8/sys/dev/advansys/adv_isa.c	Fri Mar 16 08:46:58 2012	(r233024)
+++ stable/8/sys/dev/advansys/adv_isa.c	Fri Mar 16 09:22:59 2012	(r233025)
@@ -226,9 +226,8 @@ adv_isa_probe(device_t dev)
 		 * Allocate a parent dmatag for all tags created
 		 * by the MI portions of the advansys driver
 		 */
-		/* XXX Should be a child of the ISA bus dma tag */ 
 		error = bus_dma_tag_create(
-				/* parent	*/ NULL,
+				/* parent	*/ bus_get_dma_tag(dev),
 				/* alignemnt	*/ 1,
 				/* boundary	*/ 0,
 				/* lowaddr	*/ lowaddr,

Modified: stable/8/sys/dev/advansys/adv_pci.c
==============================================================================
--- stable/8/sys/dev/advansys/adv_pci.c	Fri Mar 16 08:46:58 2012	(r233024)
+++ stable/8/sys/dev/advansys/adv_pci.c	Fri Mar 16 09:22:59 2012	(r233025)
@@ -187,9 +187,8 @@ adv_pci_attach(device_t dev)
 	}
 
 	/* Allocate a dmatag for our transfer DMA maps */
-	/* XXX Should be a child of the PCI bus dma tag */
 	error = bus_dma_tag_create(
-			/* parent	*/ NULL,
+			/* parent	*/ bus_get_dma_tag(dev),
 			/* alignment	*/ 1,
 			/* boundary	*/ 0,
 			/* lowaddr	*/ ADV_PCI_MAX_DMA_ADDR,

Modified: stable/8/sys/dev/advansys/adw_pci.c
==============================================================================
--- stable/8/sys/dev/advansys/adw_pci.c	Fri Mar 16 08:46:58 2012	(r233024)
+++ stable/8/sys/dev/advansys/adw_pci.c	Fri Mar 16 09:22:59 2012	(r233025)
@@ -258,9 +258,8 @@ adw_pci_attach(device_t dev)
 	pci_write_config(dev, PCIR_COMMAND, command, /*bytes*/1);
 
 	/* Allocate a dmatag for our transfer DMA maps */
-	/* XXX Should be a child of the PCI bus dma tag */
 	error = bus_dma_tag_create(
-			/* parent	*/ NULL,
+			/* parent	*/ bus_get_dma_tag(dev),
 			/* alignment	*/ 1,
 			/* boundary	*/ 0,
 			/* lowaddr	*/ ADW_PCI_MAX_DMA_ADDR,

Modified: stable/8/sys/dev/ahb/ahb.c
==============================================================================
--- stable/8/sys/dev/ahb/ahb.c	Fri Mar 16 08:46:58 2012	(r233024)
+++ stable/8/sys/dev/ahb/ahb.c	Fri Mar 16 09:22:59 2012	(r233025)
@@ -291,8 +291,7 @@ ahbattach(device_t dev)
 	 * need to perform during normal operation.
 	 */
 	/* DMA tag for mapping buffers into device visible space. */
-	/* XXX Should be a child of the EISA bus dma tag */
-	if (bus_dma_tag_create(	/* parent	*/ NULL,
+	if (bus_dma_tag_create(	/* parent	*/ bus_get_dma_tag(dev),
 				/* alignment	*/ 1,
 				/* boundary	*/ 0,
 				/* lowaddr	*/ BUS_SPACE_MAXADDR_32BIT,
@@ -311,7 +310,7 @@ ahbattach(device_t dev)
 	ahb->init_level++;
 
 	/* DMA tag for our ccb structures and ha inquiry data */
-	if (bus_dma_tag_create(	/* parent	*/ NULL,
+	if (bus_dma_tag_create(	/* parent	*/ bus_get_dma_tag(dev),
 				/* alignment	*/ 1,
 				/* boundary	*/ 0,
 				/* lowaddr	*/ BUS_SPACE_MAXADDR_32BIT,

Modified: stable/8/sys/dev/aic7xxx/ahc_eisa.c
==============================================================================
--- stable/8/sys/dev/aic7xxx/ahc_eisa.c	Fri Mar 16 08:46:58 2012	(r233024)
+++ stable/8/sys/dev/aic7xxx/ahc_eisa.c	Fri Mar 16 09:22:59 2012	(r233025)
@@ -130,7 +130,6 @@ aic7770_attach(device_t dev)
 	ahc_set_unit(ahc, device_get_unit(dev));
 
 	/* Allocate a dmatag for our SCB DMA maps */
-	/* XXX Should be a child of the PCI bus dma tag */
 	error = aic_dma_tag_create(ahc, /*parent*/bus_get_dma_tag(dev),
 				   /*alignment*/1, /*boundary*/0,
 				   /*lowaddr*/BUS_SPACE_MAXADDR_32BIT,

Modified: stable/8/sys/dev/aic7xxx/ahc_isa.c
==============================================================================
--- stable/8/sys/dev/aic7xxx/ahc_isa.c	Fri Mar 16 08:46:58 2012	(r233024)
+++ stable/8/sys/dev/aic7xxx/ahc_isa.c	Fri Mar 16 09:22:59 2012	(r233025)
@@ -253,7 +253,6 @@ ahc_isa_attach(device_t dev)
 	ahc_set_unit(ahc, device_get_unit(dev));
 
 	/* Allocate a dmatag for our SCB DMA maps */
-	/* XXX Should be a child of the VLB/ISA bus dma tag */
 	error = aic_dma_tag_create(ahc, /*parent*/bus_get_dma_tag(dev),
 				   /*alignment*/1, /*boundary*/0,
 				   /*lowaddr*/BUS_SPACE_MAXADDR_32BIT,

Modified: stable/8/sys/dev/aic7xxx/ahc_pci.c
==============================================================================
--- stable/8/sys/dev/aic7xxx/ahc_pci.c	Fri Mar 16 08:46:58 2012	(r233024)
+++ stable/8/sys/dev/aic7xxx/ahc_pci.c	Fri Mar 16 09:22:59 2012	(r233025)
@@ -105,7 +105,6 @@ ahc_pci_attach(device_t dev)
                 ahc->flags |= AHC_39BIT_ADDRESSING;
 
 	/* Allocate a dmatag for our SCB DMA maps */
-	/* XXX Should be a child of the PCI bus dma tag */
 	error = aic_dma_tag_create(ahc, /*parent*/bus_get_dma_tag(dev),
 				   /*alignment*/1, /*boundary*/0,
 				   (ahc->flags & AHC_39BIT_ADDRESSING)

Modified: stable/8/sys/dev/aic7xxx/ahd_pci.c
==============================================================================
--- stable/8/sys/dev/aic7xxx/ahd_pci.c	Fri Mar 16 08:46:58 2012	(r233024)
+++ stable/8/sys/dev/aic7xxx/ahd_pci.c	Fri Mar 16 09:22:59 2012	(r233025)
@@ -107,7 +107,6 @@ ahd_pci_attach(device_t dev)
                 ahd->flags |= AHD_39BIT_ADDRESSING;
 
 	/* Allocate a dmatag for our SCB DMA maps */
-	/* XXX Should be a child of the PCI bus dma tag */
 	error = aic_dma_tag_create(ahd, /*parent*/bus_get_dma_tag(dev),
 				   /*alignment*/1, /*boundary*/0,
 				   (ahd->flags & AHD_39BIT_ADDRESSING)

Modified: stable/8/sys/dev/amr/amr_pci.c
==============================================================================
--- stable/8/sys/dev/amr/amr_pci.c	Fri Mar 16 08:46:58 2012	(r233024)
+++ stable/8/sys/dev/amr/amr_pci.c	Fri Mar 16 09:22:59 2012	(r233025)
@@ -275,7 +275,7 @@ amr_pci_attach(device_t dev)
     /*
      * Allocate the parent bus DMA tag appropriate for PCI.
      */
-    if (bus_dma_tag_create(NULL, 			/* parent */
+    if (bus_dma_tag_create(bus_get_dma_tag(dev),	/* PCI parent */
 			   1, 0, 			/* alignment,boundary */
 			   AMR_IS_SG64(sc) ?
 			   BUS_SPACE_MAXADDR :

Modified: stable/8/sys/dev/an/if_an_pci.c
==============================================================================
--- stable/8/sys/dev/an/if_an_pci.c	Fri Mar 16 08:46:58 2012	(r233024)
+++ stable/8/sys/dev/an/if_an_pci.c	Fri Mar 16 09:22:59 2012	(r233025)
@@ -209,7 +209,7 @@ an_attach_pci(dev)
 		sc->an_mem_aux_bhandle = rman_get_bushandle(sc->mem_aux_res);
 
 		/* Allocate DMA region */
-		error = bus_dma_tag_create(NULL,	/* parent */
+		error = bus_dma_tag_create(bus_get_dma_tag(dev),/* parent */
 			       1, 0,			/* alignment, bounds */
 			       BUS_SPACE_MAXADDR_32BIT,	/* lowaddr */
 			       BUS_SPACE_MAXADDR,	/* highaddr */

Modified: stable/8/sys/dev/arcmsr/arcmsr.c
==============================================================================
--- stable/8/sys/dev/arcmsr/arcmsr.c	Fri Mar 16 08:46:58 2012	(r233024)
+++ stable/8/sys/dev/arcmsr/arcmsr.c	Fri Mar 16 09:22:59 2012	(r233025)
@@ -3486,7 +3486,7 @@ static u_int32_t arcmsr_initialize(devic
 			return ENOMEM;
 		}
 	}
-	if(bus_dma_tag_create(  /*parent*/		NULL,
+	if(bus_dma_tag_create(  /*PCI parent*/		bus_get_dma_tag(dev),
 							/*alignemnt*/	1,
 							/*boundary*/	0,
 							/*lowaddr*/		BUS_SPACE_MAXADDR,

Modified: stable/8/sys/dev/asr/asr.c
==============================================================================
--- stable/8/sys/dev/asr/asr.c	Fri Mar 16 08:46:58 2012	(r233024)
+++ stable/8/sys/dev/asr/asr.c	Fri Mar 16 09:22:59 2012	(r233025)
@@ -2328,7 +2328,7 @@ asr_alloc_dma(Asr_softc_t *sc)
 
 	dev = sc->ha_dev;
 
-	if (bus_dma_tag_create(NULL,			/* parent */
+	if (bus_dma_tag_create(bus_get_dma_tag(dev),	/* PCI parent */
 			       1, 0,			/* algnmnt, boundary */
 			       BUS_SPACE_MAXADDR_32BIT,	/* lowaddr */
 			       BUS_SPACE_MAXADDR,	/* highaddr */

Modified: stable/8/sys/dev/buslogic/bt_pci.c
==============================================================================
--- stable/8/sys/dev/buslogic/bt_pci.c	Fri Mar 16 08:46:58 2012	(r233024)
+++ stable/8/sys/dev/buslogic/bt_pci.c	Fri Mar 16 09:22:59 2012	(r233025)
@@ -172,8 +172,7 @@ bt_pci_attach(device_t dev)
 	}
 
 	/* Allocate a dmatag for our CCB DMA maps */
-	/* XXX Should be a child of the PCI bus dma tag */
-	if (bus_dma_tag_create(	/* parent	*/ NULL,
+	if (bus_dma_tag_create(	/* PCI parent	*/ bus_get_dma_tag(dev),
 				/* alignemnt	*/ 1,
 				/* boundary	*/ 0,
 				/* lowaddr	*/ BUS_SPACE_MAXADDR_32BIT,

Modified: stable/8/sys/dev/ciss/ciss.c
==============================================================================
--- stable/8/sys/dev/ciss/ciss.c	Fri Mar 16 08:46:58 2012	(r233024)
+++ stable/8/sys/dev/ciss/ciss.c	Fri Mar 16 09:22:59 2012	(r233025)
@@ -795,7 +795,7 @@ setup:
      * Note that "simple" adapters can only address within a 32-bit
      * span.
      */
-    if (bus_dma_tag_create(NULL, 			/* parent */
+    if (bus_dma_tag_create(bus_get_dma_tag(sc->ciss_dev),/* PCI parent */
 			   1, 0, 			/* alignment, boundary */
 			   BUS_SPACE_MAXADDR,		/* lowaddr */
 			   BUS_SPACE_MAXADDR, 		/* highaddr */

Modified: stable/8/sys/dev/cxgb/cxgb_sge.c
==============================================================================
--- stable/8/sys/dev/cxgb/cxgb_sge.c	Fri Mar 16 08:46:58 2012	(r233024)
+++ stable/8/sys/dev/cxgb/cxgb_sge.c	Fri Mar 16 09:22:59 2012	(r233025)
@@ -591,7 +591,7 @@ t3_sge_alloc(adapter_t *sc)
 {
 
 	/* The parent tag. */
-	if (bus_dma_tag_create( NULL,			/* parent */
+	if (bus_dma_tag_create( bus_get_dma_tag(sc->dev),/* PCI parent */
 				1, 0,			/* algnmnt, boundary */
 				BUS_SPACE_MAXADDR,	/* lowaddr */
 				BUS_SPACE_MAXADDR,	/* highaddr */

Modified: stable/8/sys/dev/de/if_de.c
==============================================================================
--- stable/8/sys/dev/de/if_de.c	Fri Mar 16 08:46:58 2012	(r233024)
+++ stable/8/sys/dev/de/if_de.c	Fri Mar 16 09:22:59 2012	(r233025)
@@ -4499,7 +4499,8 @@ tulip_busdma_allocring(device_t dev, tul
     /* First, setup a tag. */
     ri->ri_max = count;
     size = count * sizeof(tulip_desc_t);
-    error = bus_dma_tag_create(NULL, 32, 0, BUS_SPACE_MAXADDR_32BIT,
+    error = bus_dma_tag_create(bus_get_dma_tag(dev),
+	32, 0, BUS_SPACE_MAXADDR_32BIT,
 	BUS_SPACE_MAXADDR, NULL, NULL, size, 1, size, 0, NULL, NULL,
 	&ri->ri_ring_tag);
     if (error) {
@@ -4527,7 +4528,7 @@ tulip_busdma_allocring(device_t dev, tul
     }
 
     /* Allocate a tag for the data buffers. */
-    error = bus_dma_tag_create(NULL, align, 0,
+    error = bus_dma_tag_create(bus_get_dma_tag(dev), align, 0,
 	BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL,
 	MCLBYTES * nsegs, nsegs, MCLBYTES, 0, NULL, NULL, &ri->ri_data_tag);
     if (error) {
@@ -4607,7 +4608,7 @@ tulip_busdma_init(device_t dev, tulip_so
     /*
      * Allocate a DMA tag, memory, and map for setup descriptor
      */
-    error = bus_dma_tag_create(NULL, 32, 0,
+    error = bus_dma_tag_create(bus_get_dma_tag(dev), 32, 0,
 	BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL,
 	sizeof(sc->tulip_setupdata), 1, sizeof(sc->tulip_setupdata), 0,
 	NULL, NULL, &sc->tulip_setup_tag);

Modified: stable/8/sys/dev/dpt/dpt_pci.c
==============================================================================
--- stable/8/sys/dev/dpt/dpt_pci.c	Fri Mar 16 08:46:58 2012	(r233024)
+++ stable/8/sys/dev/dpt/dpt_pci.c	Fri Mar 16 09:22:59 2012	(r233025)
@@ -132,8 +132,7 @@ dpt_pci_attach (device_t dev)
 	dpt_alloc(dev);
 
 	/* Allocate a dmatag representing the capabilities of this attachment */
-	/* XXX Should be a child of the PCI bus dma tag */
-	if (bus_dma_tag_create(	/* parent    */	NULL,
+	if (bus_dma_tag_create(	/* PCI parent */ bus_get_dma_tag(dev),
 				/* alignemnt */	1,
 				/* boundary  */	0,
 				/* lowaddr   */	BUS_SPACE_MAXADDR_32BIT,

Modified: stable/8/sys/dev/en/midway.c
==============================================================================
--- stable/8/sys/dev/en/midway.c	Fri Mar 16 08:46:58 2012	(r233024)
+++ stable/8/sys/dev/en/midway.c	Fri Mar 16 09:22:59 2012	(r233025)
@@ -2714,7 +2714,7 @@ en_dmaprobe(struct en_softc *sc)
 	 * Allocate some DMA-able memory.
 	 * We need 3 times the max burst size aligned to the max burst size.
 	 */
-	err = bus_dma_tag_create(NULL, MIDDMA_MAXBURST, 0,
+	err = bus_dma_tag_create(bus_get_dma_tag(sc->dev), MIDDMA_MAXBURST, 0,
 	    BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL,
 	    3 * MIDDMA_MAXBURST, 1, 3 * MIDDMA_MAXBURST, 0,
 	    NULL, NULL, &tag);
@@ -2927,7 +2927,7 @@ en_attach(struct en_softc *sc)
 	MGET(sc->padbuf, M_WAIT, MT_DATA);
 	bzero(sc->padbuf->m_data, MLEN);
 
-	if (bus_dma_tag_create(NULL, 1, 0,
+	if (bus_dma_tag_create(bus_get_dma_tag(sc->dev), 1, 0,
 	    BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL,
 	    EN_TXSZ * 1024, EN_MAX_DMASEG, EN_TXSZ * 1024, 0,
 	    NULL, NULL, &sc->txtag))

Modified: stable/8/sys/dev/glxsb/glxsb.c
==============================================================================
--- stable/8/sys/dev/glxsb/glxsb.c	Fri Mar 16 08:46:58 2012	(r233024)
+++ stable/8/sys/dev/glxsb/glxsb.c	Fri Mar 16 09:22:59 2012	(r233025)
@@ -397,7 +397,7 @@ glxsb_dma_alloc(struct glxsb_softc *sc)
 	dma->dma_size = GLXSB_MAX_AES_LEN * 2;
 
 	/* Setup DMA descriptor area */
-	rc = bus_dma_tag_create(NULL,			/* parent */
+	rc = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev),	/* parent */
 				SB_AES_ALIGN, 0,	/* alignments, bounds */
 				BUS_SPACE_MAXADDR_32BIT,/* lowaddr */
 				BUS_SPACE_MAXADDR,	/* highaddr */

Modified: stable/8/sys/dev/hatm/if_hatm.c
==============================================================================
--- stable/8/sys/dev/hatm/if_hatm.c	Fri Mar 16 08:46:58 2012	(r233024)
+++ stable/8/sys/dev/hatm/if_hatm.c	Fri Mar 16 09:22:59 2012	(r233025)
@@ -1721,7 +1721,7 @@ hatm_attach(device_t dev)
 	/*
 	 * ALlocate a DMA tag for subsequent allocations
 	 */
-	if (bus_dma_tag_create(NULL, 1, 0,
+	if (bus_dma_tag_create(bus_get_dma_tag(sc->dev), 1, 0,
 	    BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR,
 	    NULL, NULL,
 	    BUS_SPACE_MAXSIZE_32BIT, 1,
@@ -1750,7 +1750,7 @@ hatm_attach(device_t dev)
 	 * but this would not work. So make the maximum number of TPDs
 	 * occupied by one packet a configuration parameter.
 	 */
-	if (bus_dma_tag_create(NULL, 1, 0,
+	if (bus_dma_tag_create(bus_get_dma_tag(sc->dev), 1, 0,
 	    BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL,
 	    HE_MAX_PDU, 3 * HE_CONFIG_MAX_TPD_PER_PACKET, HE_MAX_PDU, 0,
 	    NULL, NULL, &sc->tx_tag)) {

Modified: stable/8/sys/dev/hifn/hifn7751.c
==============================================================================
--- stable/8/sys/dev/hifn/hifn7751.c	Fri Mar 16 08:46:58 2012	(r233024)
+++ stable/8/sys/dev/hifn/hifn7751.c	Fri Mar 16 09:22:59 2012	(r233025)
@@ -450,7 +450,7 @@ hifn_attach(device_t dev)
 	 * Setup the area where the Hifn DMA's descriptors
 	 * and associated data structures.
 	 */
-	if (bus_dma_tag_create(NULL,			/* parent */
+	if (bus_dma_tag_create(bus_get_dma_tag(dev),	/* PCI parent */
 			       1, 0,			/* alignment,boundary */
 			       BUS_SPACE_MAXADDR_32BIT,	/* lowaddr */
 			       BUS_SPACE_MAXADDR,	/* highaddr */

Modified: stable/8/sys/dev/hptiop/hptiop.c
==============================================================================
--- stable/8/sys/dev/hptiop/hptiop.c	Fri Mar 16 08:46:58 2012	(r233024)
+++ stable/8/sys/dev/hptiop/hptiop.c	Fri Mar 16 09:22:59 2012	(r233025)
@@ -1358,7 +1358,7 @@ static int hptiop_attach(device_t dev)
 	mtx_init(&hba->lock, "hptioplock", NULL, MTX_DEF);
 #endif
 
-	if (bus_dma_tag_create(NULL,/* parent */
+	if (bus_dma_tag_create(bus_get_dma_tag(dev),/* PCI parent */
 			1,  /* alignment */
 			0, /* boundary */
 			BUS_SPACE_MAXADDR,  /* lowaddr */

Modified: stable/8/sys/dev/hptmv/entry.c
==============================================================================
--- stable/8/sys/dev/hptmv/entry.c	Fri Mar 16 08:46:58 2012	(r233024)
+++ stable/8/sys/dev/hptmv/entry.c	Fri Mar 16 09:22:59 2012	(r233025)
@@ -1326,7 +1326,7 @@ init_adapter(IAL_ADAPTER_T *pAdapter)
 	_vbus_p->OsExt = (void *)pAdapter; 
 	pMvSataAdapter->IALData = pAdapter;
 
-	if (bus_dma_tag_create(NULL,/* parent */
+	if (bus_dma_tag_create(bus_get_dma_tag(pAdapter->hpt_dev),/* parent */
 			4,	/* alignment */
 			BUS_SPACE_MAXADDR_32BIT+1, /* boundary */
 			BUS_SPACE_MAXADDR,	/* lowaddr */

Modified: stable/8/sys/dev/ida/ida_pci.c
==============================================================================
--- stable/8/sys/dev/ida/ida_pci.c	Fri Mar 16 08:46:58 2012	(r233024)
+++ stable/8/sys/dev/ida/ida_pci.c	Fri Mar 16 09:22:59 2012	(r233025)
@@ -267,7 +267,7 @@ ida_pci_attach(device_t dev)
 	}
 
 	error = bus_dma_tag_create(
-		/* parent	*/ NULL,
+		/* parent	*/ bus_get_dma_tag(dev),
 		/* alignment	*/ 1,
 		/* boundary	*/ 0,
 		/* lowaddr	*/ BUS_SPACE_MAXADDR_32BIT,

Modified: stable/8/sys/dev/if_ndis/if_ndis_pci.c
==============================================================================
--- stable/8/sys/dev/if_ndis/if_ndis_pci.c	Fri Mar 16 08:46:58 2012	(r233024)
+++ stable/8/sys/dev/if_ndis/if_ndis_pci.c	Fri Mar 16 09:22:59 2012	(r233025)
@@ -284,7 +284,7 @@ ndis_attach_pci(dev)
 	 * Allocate the parent bus DMA tag appropriate for PCI.
 	 */
 #define NDIS_NSEG_NEW 32
-	error = bus_dma_tag_create(NULL,	/* parent */
+	error = bus_dma_tag_create(bus_get_dma_tag(dev),/* PCI parent */
 			1, 0,			/* alignment, boundary */
 			BUS_SPACE_MAXADDR_32BIT,/* lowaddr */
                         BUS_SPACE_MAXADDR,	/* highaddr */

Modified: stable/8/sys/dev/iir/iir_pci.c
==============================================================================
--- stable/8/sys/dev/iir/iir_pci.c	Fri Mar 16 08:46:58 2012	(r233024)
+++ stable/8/sys/dev/iir/iir_pci.c	Fri Mar 16 09:22:59 2012	(r233025)
@@ -318,8 +318,8 @@ iir_pci_attach(device_t dev)
     gdt->sc_test_busy = gdt_mpr_test_busy;
 
     /* Allocate a dmatag representing the capabilities of this attachment */
-    /* XXX Should be a child of the PCI bus dma tag */
-    if (bus_dma_tag_create(/*parent*/NULL, /*alignemnt*/1, /*boundary*/0,
+    if (bus_dma_tag_create(/*parent*/bus_get_dma_tag(dev),
+                           /*alignemnt*/1, /*boundary*/0,
                            /*lowaddr*/BUS_SPACE_MAXADDR_32BIT,
                            /*highaddr*/BUS_SPACE_MAXADDR,
                            /*filter*/NULL, /*filterarg*/NULL,

Modified: stable/8/sys/dev/ips/ips_pci.c
==============================================================================
--- stable/8/sys/dev/ips/ips_pci.c	Fri Mar 16 08:46:58 2012	(r233024)
+++ stable/8/sys/dev/ips/ips_pci.c	Fri Mar 16 09:22:59 2012	(r233025)
@@ -135,7 +135,7 @@ static int ips_pci_attach(device_t dev)
                 device_printf(dev, "irq setup failed\n");
                 goto error;
         }
-	if (bus_dma_tag_create(	/* parent    */	NULL,
+	if (bus_dma_tag_create(	/* PCI parent */bus_get_dma_tag(dev),
 				/* alignemnt */	1,
 				/* boundary  */	0,
 				/* lowaddr   */	BUS_SPACE_MAXADDR_32BIT,

Modified: stable/8/sys/dev/ipw/if_ipw.c
==============================================================================
--- stable/8/sys/dev/ipw/if_ipw.c	Fri Mar 16 08:46:58 2012	(r233024)
+++ stable/8/sys/dev/ipw/if_ipw.c	Fri Mar 16 09:22:59 2012	(r233025)
@@ -526,9 +526,21 @@ ipw_dma_alloc(struct ipw_softc *sc)
 	int error, i;
 
 	/*
+	 * Allocate parent DMA tag for subsequent allocations.
+	 */
+	error = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev), 1, 0,
+	    BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL,
+	    BUS_SPACE_MAXSIZE_32BIT, BUS_SPACE_UNRESTRICTED,
+	    BUS_SPACE_MAXSIZE_32BIT, 0, NULL, NULL, &sc->parent_dmat);
+	if (error != 0) {
+		device_printf(sc->sc_dev, "could not create parent DMA tag\n");
+		goto fail;
+	}
+
+	/*
 	 * Allocate and map tx ring.
 	 */
-	error = bus_dma_tag_create(NULL, 4, 0, BUS_SPACE_MAXADDR_32BIT,
+	error = bus_dma_tag_create(sc->parent_dmat, 4, 0, BUS_SPACE_MAXADDR_32BIT,
 	    BUS_SPACE_MAXADDR, NULL, NULL, IPW_TBD_SZ, 1, IPW_TBD_SZ, 0, NULL,
 	    NULL, &sc->tbd_dmat);
 	if (error != 0) {
@@ -554,7 +566,7 @@ ipw_dma_alloc(struct ipw_softc *sc)
 	/*
 	 * Allocate and map rx ring.
 	 */
-	error = bus_dma_tag_create(NULL, 4, 0, BUS_SPACE_MAXADDR_32BIT,
+	error = bus_dma_tag_create(sc->parent_dmat, 4, 0, BUS_SPACE_MAXADDR_32BIT,
 	    BUS_SPACE_MAXADDR, NULL, NULL, IPW_RBD_SZ, 1, IPW_RBD_SZ, 0, NULL,
 	    NULL, &sc->rbd_dmat);
 	if (error != 0) {
@@ -580,7 +592,7 @@ ipw_dma_alloc(struct ipw_softc *sc)
 	/*
 	 * Allocate and map status ring.
 	 */
-	error = bus_dma_tag_create(NULL, 4, 0, BUS_SPACE_MAXADDR_32BIT,
+	error = bus_dma_tag_create(sc->parent_dmat, 4, 0, BUS_SPACE_MAXADDR_32BIT,
 	    BUS_SPACE_MAXADDR, NULL, NULL, IPW_STATUS_SZ, 1, IPW_STATUS_SZ, 0,
 	    NULL, NULL, &sc->status_dmat);
 	if (error != 0) {
@@ -609,7 +621,7 @@ ipw_dma_alloc(struct ipw_softc *sc)
 	/*
 	 * Allocate command DMA map.
 	 */
-	error = bus_dma_tag_create(NULL, 1, 0, BUS_SPACE_MAXADDR_32BIT,
+	error = bus_dma_tag_create(sc->parent_dmat, 1, 0, BUS_SPACE_MAXADDR_32BIT,
 	    BUS_SPACE_MAXADDR, NULL, NULL, sizeof (struct ipw_cmd), 1,
 	    sizeof (struct ipw_cmd), 0, NULL, NULL, &sc->cmd_dmat);
 	if (error != 0) {
@@ -627,7 +639,7 @@ ipw_dma_alloc(struct ipw_softc *sc)
 	/*
 	 * Allocate headers DMA maps.
 	 */
-	error = bus_dma_tag_create(NULL, 1, 0, BUS_SPACE_MAXADDR_32BIT,
+	error = bus_dma_tag_create(sc->parent_dmat, 1, 0, BUS_SPACE_MAXADDR_32BIT,
 	    BUS_SPACE_MAXADDR, NULL, NULL, sizeof (struct ipw_hdr), 1,
 	    sizeof (struct ipw_hdr), 0, NULL, NULL, &sc->hdr_dmat);
 	if (error != 0) {
@@ -650,7 +662,7 @@ ipw_dma_alloc(struct ipw_softc *sc)
 	/*
 	 * Allocate tx buffers DMA maps.
 	 */
-	error = bus_dma_tag_create(NULL, 1, 0, BUS_SPACE_MAXADDR_32BIT,
+	error = bus_dma_tag_create(sc->parent_dmat, 1, 0, BUS_SPACE_MAXADDR_32BIT,
 	    BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES, IPW_MAX_NSEG, MCLBYTES, 0,
 	    NULL, NULL, &sc->txbuf_dmat);
 	if (error != 0) {
@@ -682,7 +694,7 @@ ipw_dma_alloc(struct ipw_softc *sc)
 	/*
 	 * Pre-allocate rx buffers and DMA maps.
 	 */
-	error = bus_dma_tag_create(NULL, 1, 0, BUS_SPACE_MAXADDR_32BIT,
+	error = bus_dma_tag_create(sc->parent_dmat, 1, 0, BUS_SPACE_MAXADDR_32BIT,
 	    BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES, 1, MCLBYTES, 0, NULL,
 	    NULL, &sc->rxbuf_dmat);
 	if (error != 0) {
@@ -739,6 +751,10 @@ ipw_release(struct ipw_softc *sc)
 	struct ipw_soft_buf *sbuf;
 	int i;
 
+	if (sc->parent_dmat != NULL) {
+		bus_dma_tag_destroy(sc->parent_dmat);
+	}
+
 	if (sc->tbd_dmat != NULL) {
 		if (sc->stbd_list != NULL) {
 			bus_dmamap_unload(sc->tbd_dmat, sc->tbd_map);

Modified: stable/8/sys/dev/ipw/if_ipwvar.h
==============================================================================
--- stable/8/sys/dev/ipw/if_ipwvar.h	Fri Mar 16 08:46:58 2012	(r233024)
+++ stable/8/sys/dev/ipw/if_ipwvar.h	Fri Mar 16 09:22:59 2012	(r233025)
@@ -117,6 +117,7 @@ struct ipw_softc {
 	int				sc_tx_timer;
 	int				sc_scan_timer;
 
+	bus_dma_tag_t			parent_dmat;
 	bus_dma_tag_t			tbd_dmat;
 	bus_dma_tag_t			rbd_dmat;
 	bus_dma_tag_t			status_dmat;

Modified: stable/8/sys/dev/ixgb/if_ixgb.c
==============================================================================
--- stable/8/sys/dev/ixgb/if_ixgb.c	Fri Mar 16 08:46:58 2012	(r233024)
+++ stable/8/sys/dev/ixgb/if_ixgb.c	Fri Mar 16 09:22:59 2012	(r233025)
@@ -1442,7 +1442,7 @@ ixgb_dma_malloc(struct adapter * adapter
 {
 	int             r;
 
-	r = bus_dma_tag_create(NULL,	/* parent */
+	r = bus_dma_tag_create(bus_get_dma_tag(adapter->dev),	/* parent */
 			       PAGE_SIZE, 0,	/* alignment, bounds */
 			       BUS_SPACE_MAXADDR,	/* lowaddr */
 			       BUS_SPACE_MAXADDR,	/* highaddr */
@@ -1534,7 +1534,7 @@ ixgb_setup_transmit_structures(struct ad
 	/*
 	 * Setup DMA descriptor areas.
 	 */
-	if (bus_dma_tag_create(NULL,	/* parent */
+	if (bus_dma_tag_create(bus_get_dma_tag(adapter->dev),	/* parent */
 			       PAGE_SIZE, 0,	/* alignment, bounds */
 			       BUS_SPACE_MAXADDR,	/* lowaddr */
 			       BUS_SPACE_MAXADDR,	/* highaddr */
@@ -1872,7 +1872,7 @@ ixgb_allocate_receive_structures(struct 
 	bzero(adapter->rx_buffer_area,
 	      sizeof(struct ixgb_buffer) * adapter->num_rx_desc);
 
-	error = bus_dma_tag_create(NULL,	/* parent */
+	error = bus_dma_tag_create(bus_get_dma_tag(adapter->dev),/* parent */
 				   PAGE_SIZE, 0,	/* alignment, bounds */
 				   BUS_SPACE_MAXADDR,	/* lowaddr */
 				   BUS_SPACE_MAXADDR,	/* highaddr */

Modified: stable/8/sys/dev/ixgbe/ixgbe.c
==============================================================================
--- stable/8/sys/dev/ixgbe/ixgbe.c	Fri Mar 16 08:46:58 2012	(r233024)
+++ stable/8/sys/dev/ixgbe/ixgbe.c	Fri Mar 16 09:22:59 2012	(r233025)
@@ -2846,7 +2846,8 @@ ixgbe_allocate_transmit_buffers(struct t
 	/*
 	 * Setup DMA descriptor areas.
 	 */
-	if ((error = bus_dma_tag_create(NULL,		/* parent */
+	if ((error = bus_dma_tag_create(
+			       bus_get_dma_tag(adapter->dev),	/* parent */
 			       1, 0,		/* alignment, bounds */
 			       BUS_SPACE_MAXADDR,	/* lowaddr */
 			       BUS_SPACE_MAXADDR,	/* highaddr */

Modified: stable/8/sys/dev/ixgbe/ixv.c
==============================================================================
--- stable/8/sys/dev/ixgbe/ixv.c	Fri Mar 16 08:46:58 2012	(r233024)
+++ stable/8/sys/dev/ixgbe/ixv.c	Fri Mar 16 09:22:59 2012	(r233025)
@@ -2158,7 +2158,8 @@ ixv_allocate_transmit_buffers(struct tx_
 	/*
 	 * Setup DMA descriptor areas.
 	 */
-	if ((error = bus_dma_tag_create(NULL,		/* parent */
+	if ((error = bus_dma_tag_create(
+			       bus_get_dma_tag(adapter->dev),	/* parent */
 			       1, 0,		/* alignment, bounds */
 			       BUS_SPACE_MAXADDR,	/* lowaddr */
 			       BUS_SPACE_MAXADDR,	/* highaddr */

Modified: stable/8/sys/dev/lmc/if_lmc.c
==============================================================================
--- stable/8/sys/dev/lmc/if_lmc.c	Fri Mar 16 08:46:58 2012	(r233024)
+++ stable/8/sys/dev/lmc/if_lmc.c	Fri Mar 16 09:22:59 2012	(r233025)
@@ -2621,7 +2621,8 @@ create_ring(softc_t *sc, struct desc_rin
 #ifdef __FreeBSD__
 
   /* Create a DMA tag for descriptors and buffers. */
-  if ((error = bus_dma_tag_create(NULL, 4, 0, BUS_SPACE_MAXADDR_32BIT,
+  if ((error = bus_dma_tag_create(bus_get_dma_tag(sc->dev),
+   4, 0, BUS_SPACE_MAXADDR_32BIT,
    BUS_SPACE_MAXADDR, NULL, NULL, PAGE_SIZE, 2, PAGE_SIZE, BUS_DMA_ALLOCNOW,
 # if (__FreeBSD_version >= 502000)
    NULL, NULL,

Modified: stable/8/sys/dev/mfi/mfi_pci.c
==============================================================================
--- stable/8/sys/dev/mfi/mfi_pci.c	Fri Mar 16 08:46:58 2012	(r233024)
+++ stable/8/sys/dev/mfi/mfi_pci.c	Fri Mar 16 09:22:59 2012	(r233025)
@@ -216,7 +216,7 @@ mfi_pci_attach(device_t dev)
 	error = ENOMEM;
 
 	/* Allocate parent DMA tag */
-	if (bus_dma_tag_create(	NULL,			/* parent */
+	if (bus_dma_tag_create(	bus_get_dma_tag(dev),	/* PCI parent */
 				1, 0,			/* algnmnt, boundary */
 				BUS_SPACE_MAXADDR,	/* lowaddr */
 				BUS_SPACE_MAXADDR,	/* highaddr */

Modified: stable/8/sys/dev/mge/if_mge.c
==============================================================================
--- stable/8/sys/dev/mge/if_mge.c	Fri Mar 16 08:46:58 2012	(r233024)
+++ stable/8/sys/dev/mge/if_mge.c	Fri Mar 16 09:22:59 2012	(r233025)
@@ -422,7 +422,7 @@ mge_alloc_desc_dma(struct mge_softc *sc,
 	tab[size - 1].mge_desc->next_desc = desc_paddr;
 
 	/* Allocate a busdma tag for mbufs. */
-	error = bus_dma_tag_create(NULL,	/* parent */
+	error = bus_dma_tag_create(bus_get_dma_tag(sc->dev),	/* parent */
 	    8, 0,				/* alignment, boundary */
 	    BUS_SPACE_MAXADDR_32BIT,		/* lowaddr */
 	    BUS_SPACE_MAXADDR,			/* highaddr */
@@ -460,7 +460,7 @@ mge_allocate_dma(struct mge_softc *sc)
 	int i;
 
 	/* Allocate a busdma tag and DMA safe memory for TX/RX descriptors. */
-	error = bus_dma_tag_create(NULL,	/* parent */
+	error = bus_dma_tag_create(bus_get_dma_tag(sc->dev),	/* parent */
 	    16, 0,				/* alignment, boundary */
 	    BUS_SPACE_MAXADDR_32BIT,		/* lowaddr */
 	    BUS_SPACE_MAXADDR,			/* highaddr */

Modified: stable/8/sys/dev/mlx/mlx_pci.c
==============================================================================
--- stable/8/sys/dev/mlx/mlx_pci.c	Fri Mar 16 08:46:58 2012	(r233024)
+++ stable/8/sys/dev/mlx/mlx_pci.c	Fri Mar 16 09:22:59 2012	(r233025)
@@ -189,7 +189,7 @@ mlx_pci_attach(device_t dev)
     /*
      * Allocate the parent bus DMA tag appropriate for PCI.
      */
-    error = bus_dma_tag_create(NULL, 			/* parent */
+    error = bus_dma_tag_create(bus_get_dma_tag(dev),	/* PCI parent */
 			       1, 0, 			/* alignment, boundary */
 			       BUS_SPACE_MAXADDR_32BIT, /* lowaddr */
 			       BUS_SPACE_MAXADDR, 	/* highaddr */

Modified: stable/8/sys/dev/mly/mly.c
==============================================================================
--- stable/8/sys/dev/mly/mly.c	Fri Mar 16 08:46:58 2012	(r233024)
+++ stable/8/sys/dev/mly/mly.c	Fri Mar 16 09:22:59 2012	(r233025)
@@ -392,7 +392,7 @@ mly_pci_attach(struct mly_softc *sc)
      * 
      * Note that all of these controllers are 64-bit capable.
      */
-    if (bus_dma_tag_create(NULL, 			/* parent */
+    if (bus_dma_tag_create(bus_get_dma_tag(sc->mly_dev),/* PCI parent */
 			   1, 0, 			/* alignment, boundary */
 			   BUS_SPACE_MAXADDR_32BIT,	/* lowaddr */
 			   BUS_SPACE_MAXADDR, 		/* highaddr */

Modified: stable/8/sys/dev/mxge/if_mxge.c
==============================================================================
--- stable/8/sys/dev/mxge/if_mxge.c	Fri Mar 16 08:46:58 2012	(r233024)
+++ stable/8/sys/dev/mxge/if_mxge.c	Fri Mar 16 09:22:59 2012	(r233025)
@@ -4664,7 +4664,7 @@ mxge_attach(device_t dev)
 		goto abort_with_nothing;
 	}
 
-	err = bus_dma_tag_create(NULL,			/* parent */
+	err = bus_dma_tag_create(bus_get_dma_tag(dev),	/* parent */
 				 1,			/* alignment */
 				 0,			/* boundary */
 				 BUS_SPACE_MAXADDR,	/* low */

Modified: stable/8/sys/dev/nve/if_nve.c
==============================================================================
--- stable/8/sys/dev/nve/if_nve.c	Fri Mar 16 08:46:58 2012	(r233024)
+++ stable/8/sys/dev/nve/if_nve.c	Fri Mar 16 09:22:59 2012	(r233025)
@@ -371,7 +371,8 @@ nve_attach(device_t dev)
 		goto fail;
 	}
 	/* Allocate DMA tags */
-	error = bus_dma_tag_create(NULL, 4, 0, BUS_SPACE_MAXADDR_32BIT,
+	error = bus_dma_tag_create(bus_get_dma_tag(dev),
+		     4, 0, BUS_SPACE_MAXADDR_32BIT,
 		     BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES * NV_MAX_FRAGS,
 				   NV_MAX_FRAGS, MCLBYTES, 0,
 				   busdma_lock_mutex, &Giant,
@@ -380,7 +381,8 @@ nve_attach(device_t dev)
 		device_printf(dev, "couldn't allocate dma tag\n");
 		goto fail;
 	}
-	error = bus_dma_tag_create(NULL, 4, 0, BUS_SPACE_MAXADDR_32BIT,
+	error = bus_dma_tag_create(bus_get_dma_tag(dev),
+	    4, 0, BUS_SPACE_MAXADDR_32BIT,
 	    BUS_SPACE_MAXADDR, NULL, NULL,
 	    sizeof(struct nve_rx_desc) * RX_RING_SIZE, 1,
 	    sizeof(struct nve_rx_desc) * RX_RING_SIZE, 0,
@@ -390,7 +392,8 @@ nve_attach(device_t dev)
 		device_printf(dev, "couldn't allocate dma tag\n");
 		goto fail;
 	}
-	error = bus_dma_tag_create(NULL, 4, 0, BUS_SPACE_MAXADDR_32BIT,
+	error = bus_dma_tag_create(bus_get_dma_tag(dev),
+	    4, 0, BUS_SPACE_MAXADDR_32BIT,
 	    BUS_SPACE_MAXADDR, NULL, NULL,
 	    sizeof(struct nve_tx_desc) * TX_RING_SIZE, 1,
 	    sizeof(struct nve_tx_desc) * TX_RING_SIZE, 0,

Modified: stable/8/sys/dev/patm/if_patm_attach.c
==============================================================================
--- stable/8/sys/dev/patm/if_patm_attach.c	Fri Mar 16 08:46:58 2012	(r233024)
+++ stable/8/sys/dev/patm/if_patm_attach.c	Fri Mar 16 09:22:59 2012	(r233025)
@@ -404,7 +404,7 @@ patm_attach(device_t dev)
 	 * Don't use BUS_DMA_ALLOCNOW, because we never need bouncing with
 	 * bus_dmamem_alloc()
 	 */
-	error = bus_dma_tag_create(NULL, PAGE_SIZE, 0,
+	error = bus_dma_tag_create(bus_get_dma_tag(dev), PAGE_SIZE, 0,
 	    BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR,
 	    NULL, NULL, sizeof(struct patm_scd), 1,
 	    sizeof(struct patm_scd), 0, NULL, NULL, &sc->scd_tag);
@@ -774,7 +774,8 @@ patm_sq_init(struct patm_softc *sc)
 	 * Don't use BUS_DMA_ALLOCNOW, because we never need bouncing with
 	 * bus_dmamem_alloc()
 	 */
-	error = bus_dma_tag_create(NULL, PATM_SQ_ALIGNMENT, 0,
+	error = bus_dma_tag_create(bus_get_dma_tag(sc->dev),
+	    PATM_SQ_ALIGNMENT, 0,
 	    BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR,
 	    NULL, NULL, sc->sq_size, 1, sc->sq_size,
 	    0, NULL, NULL, &sc->sq_tag);
@@ -827,7 +828,7 @@ patm_rbuf_init(struct patm_softc *sc)
 	 * Don't use BUS_DMA_ALLOCNOW, because we never need bouncing with
 	 * bus_dmamem_alloc()
 	 */
-	if ((error = bus_dma_tag_create(NULL, PAGE_SIZE, 0,
+	if ((error = bus_dma_tag_create(bus_get_dma_tag(sc->dev), PAGE_SIZE, 0,
 	    BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL,
 	    SMBUF_PAGE_SIZE, 1, SMBUF_PAGE_SIZE, 0,
 	    NULL, NULL, &sc->sbuf_tag)) != 0) {
@@ -855,7 +856,7 @@ patm_rbuf_init(struct patm_softc *sc)
 	 * maps using one tag. Rather use BUS_DMA_NOWAIT when loading the map
 	 * to prevent EINPROGRESS.
 	 */
-	if ((error = bus_dma_tag_create(NULL, 4, 0,
+	if ((error = bus_dma_tag_create(bus_get_dma_tag(sc->dev), 4, 0,
 	    BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL,
 	    MCLBYTES, 1, MCLBYTES, 0, 
 	    NULL, NULL, &sc->lbuf_tag)) != 0) {
@@ -900,7 +901,7 @@ patm_txmap_init(struct patm_softc *sc)
 	struct patm_txmap *map;
 
 	/* get transmission tag */
-	error = bus_dma_tag_create(NULL, 1, 0,
+	error = bus_dma_tag_create(bus_get_dma_tag(sc->dev), 1, 0,
 	    BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR,
 	    NULL, NULL, 65536, IDT_SCQ_SIZE - 1, 65536,
 	    0, NULL, NULL, &sc->tx_tag);

Modified: stable/8/sys/dev/safe/safe.c
==============================================================================
--- stable/8/sys/dev/safe/safe.c	Fri Mar 16 08:46:58 2012	(r233024)
+++ stable/8/sys/dev/safe/safe.c	Fri Mar 16 09:22:59 2012	(r233025)
@@ -287,7 +287,7 @@ safe_attach(device_t dev)
 	/*
 	 * Setup DMA descriptor area.
 	 */
-	if (bus_dma_tag_create(NULL,			/* parent */
+	if (bus_dma_tag_create(bus_get_dma_tag(dev),	/* parent */
 			       1,			/* alignment */
 			       SAFE_DMA_BOUNDARY,	/* boundary */
 			       BUS_SPACE_MAXADDR_32BIT,	/* lowaddr */
@@ -302,7 +302,7 @@ safe_attach(device_t dev)
 		device_printf(dev, "cannot allocate DMA tag\n");
 		goto bad4;
 	}
-	if (bus_dma_tag_create(NULL,			/* parent */
+	if (bus_dma_tag_create(bus_get_dma_tag(dev),	/* parent */
 			       1,			/* alignment */
 			       SAFE_MAX_DSIZE,		/* boundary */
 			       BUS_SPACE_MAXADDR_32BIT,	/* lowaddr */
@@ -1802,7 +1802,7 @@ safe_dma_malloc(
 {
 	int r;
 
-	r = bus_dma_tag_create(NULL,			/* parent */
+	r = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev),	/* parent */
 			       sizeof(u_int32_t), 0,	/* alignment, bounds */
 			       BUS_SPACE_MAXADDR_32BIT,	/* lowaddr */
 			       BUS_SPACE_MAXADDR,	/* highaddr */

Modified: stable/8/sys/dev/trm/trm.c
==============================================================================
--- stable/8/sys/dev/trm/trm.c	Fri Mar 16 08:46:58 2012	(r233024)
+++ stable/8/sys/dev/trm/trm.c	Fri Mar 16 09:22:59 2012	(r233025)
@@ -3415,6 +3415,22 @@ trm_init(u_int16_t unit, device_t dev)
 	pACB->tag = rman_get_bustag(pACB->iores);
 	pACB->bsh = rman_get_bushandle(pACB->iores);
 	if (bus_dma_tag_create(
+	/*parent_dmat*/	bus_get_dma_tag(dev),
+	/*alignment*/	1,
+	/*boundary*/	0,
+	/*lowaddr*/	BUS_SPACE_MAXADDR,
+	/*highaddr*/	BUS_SPACE_MAXADDR,
+	/*filter*/	NULL, 
+	/*filterarg*/	NULL,
+	/*maxsize*/	BUS_SPACE_MAXSIZE_32BIT,
+	/*nsegments*/	BUS_SPACE_UNRESTRICTED,
+	/*maxsegsz*/	BUS_SPACE_MAXSIZE_32BIT,
+	/*flags*/	0,
+	/*lockfunc*/	NULL,
+	/*lockarg*/	NULL,
+	/* dmat */	&pACB->parent_dmat) != 0) 
+		goto bad;
+	if (bus_dma_tag_create(
 	/*parent_dmat*/	pACB->parent_dmat,
 	/*alignment*/	1,
 	/*boundary*/	0,
@@ -3458,7 +3474,9 @@ trm_init(u_int16_t unit, device_t dev)
 	    TRM_MAX_SRB_CNT * sizeof(TRM_SRB), trm_mapSRB, pACB, 
 	    /* flags */0);
 	/* Create, allocate, and map DMA buffers for autosense data */
-	if (bus_dma_tag_create(/*parent_dmat*/NULL, /*alignment*/1,
+	if (bus_dma_tag_create(
+	    /*parent_dmat*/pACB->parent_dmat,
+	    /*alignment*/1,
 	    /*boundary*/0,
 	    /*lowaddr*/BUS_SPACE_MAXADDR_32BIT,
 	    /*highaddr*/BUS_SPACE_MAXADDR,
@@ -3495,7 +3513,7 @@ trm_init(u_int16_t unit, device_t dev)
 	}
 	bzero(pACB->pFreeSRB, TRM_MAX_SRB_CNT * sizeof(TRM_SRB));
 	if (bus_dma_tag_create(                    
-		    /*parent_dmat*/NULL, 
+		    /*parent_dmat*/pACB->parent_dmat,
 		    /*alignment*/  1,
 		    /*boundary*/   0,
 		    /*lowaddr*/    BUS_SPACE_MAXADDR,
@@ -3546,6 +3564,8 @@ bad:
 		bus_dma_tag_destroy(pACB->srb_dmat);
 	if (pACB->buffer_dmat)
 		bus_dma_tag_destroy(pACB->buffer_dmat);
+	if (pACB->parent_dmat)
+		bus_dma_tag_destroy(pACB->parent_dmat);
 	return (NULL);
 }
 

Modified: stable/8/sys/dev/twe/twe_freebsd.c
==============================================================================
--- stable/8/sys/dev/twe/twe_freebsd.c	Fri Mar 16 08:46:58 2012	(r233024)
+++ stable/8/sys/dev/twe/twe_freebsd.c	Fri Mar 16 09:22:59 2012	(r233025)
@@ -225,7 +225,7 @@ twe_attach(device_t dev)
     /*
      * Allocate the parent bus DMA tag appropriate for PCI.
      */
-    if (bus_dma_tag_create(NULL, 				/* parent */
+    if (bus_dma_tag_create(bus_get_dma_tag(dev),		/* PCI parent */
 			   1, 0, 				/* alignment, boundary */
 			   BUS_SPACE_MAXADDR_32BIT, 		/* lowaddr */
 			   BUS_SPACE_MAXADDR, 			/* highaddr */

Modified: stable/8/sys/dev/tws/tws.c
==============================================================================
--- stable/8/sys/dev/tws/tws.c	Fri Mar 16 08:46:58 2012	(r233024)
+++ stable/8/sys/dev/tws/tws.c	Fri Mar 16 09:22:59 2012	(r233025)
@@ -521,7 +521,7 @@ tws_init(struct tws_softc *sc)
                                  TWS_MAX_32BIT_SG_ELEMENTS;
     dma_mem_size = (sizeof(struct tws_command_packet) * tws_queue_depth) +
                              (TWS_SECTOR_SIZE) ;
-    if ( bus_dma_tag_create(NULL,                    /* parent */          
+    if ( bus_dma_tag_create(bus_get_dma_tag(sc->tws_dev), /* PCI parent */ 
                             TWS_ALIGNMENT,           /* alignment */
                             0,                       /* boundary */
                             BUS_SPACE_MAXADDR_32BIT, /* lowaddr */

Modified: stable/8/sys/dev/ubsec/ubsec.c
==============================================================================
--- stable/8/sys/dev/ubsec/ubsec.c	Fri Mar 16 08:46:58 2012	(r233024)
+++ stable/8/sys/dev/ubsec/ubsec.c	Fri Mar 16 09:22:59 2012	(r233025)
@@ -368,7 +368,7 @@ ubsec_attach(device_t dev)
 	/*
 	 * Setup DMA descriptor area.
 	 */
-	if (bus_dma_tag_create(NULL,			/* parent */
+	if (bus_dma_tag_create(bus_get_dma_tag(dev),	/* parent */
 			       1, 0,			/* alignment, bounds */
 			       BUS_SPACE_MAXADDR_32BIT,	/* lowaddr */
 			       BUS_SPACE_MAXADDR,	/* highaddr */
@@ -1854,7 +1854,7 @@ ubsec_dma_malloc(
 	int r;
 
 	/* XXX could specify sc_dmat as parent but that just adds overhead */
-	r = bus_dma_tag_create(NULL,			/* parent */
+	r = bus_dma_tag_create(bus_get_dma_tag(sc->sc_dev),	/* parent */
 			       1, 0,			/* alignment, bounds */
 			       BUS_SPACE_MAXADDR_32BIT,	/* lowaddr */
 			       BUS_SPACE_MAXADDR,	/* highaddr */

Modified: stable/8/sys/dev/wds/wd7000.c
==============================================================================
--- stable/8/sys/dev/wds/wd7000.c	Fri Mar 16 08:46:58 2012	(r233024)
+++ stable/8/sys/dev/wds/wd7000.c	Fri Mar 16 09:22:59 2012	(r233025)
@@ -549,7 +549,7 @@ wds_attach(device_t dev)
 		goto bad;
 
 	/* now create the memory buffer */
-	error = bus_dma_tag_create(NULL, /*alignment*/4,
+	error = bus_dma_tag_create(bus_get_dma_tag(dev), /*alignment*/4,
 				   /*boundary*/0,
 				   /*lowaddr*/BUS_SPACE_MAXADDR_24BIT,
 				   /*highaddr*/ BUS_SPACE_MAXADDR,

Modified: stable/8/sys/dev/xen/blkfront/blkfront.c
==============================================================================
--- stable/8/sys/dev/xen/blkfront/blkfront.c	Fri Mar 16 08:46:58 2012	(r233024)
+++ stable/8/sys/dev/xen/blkfront/blkfront.c	Fri Mar 16 09:22:59 2012	(r233025)
@@ -650,7 +650,7 @@ blkfront_initialize(struct xb_softc *sc)
 	sc->max_request_blocks = BLKIF_SEGS_TO_BLOCKS(sc->max_request_segments);
 
 	/* Allocate datastructures based on negotiated values. */
-	error = bus_dma_tag_create(NULL,		/* parent */
+	error = bus_dma_tag_create(bus_get_dma_tag(sc->xb_dev),	/* parent */
 				   512, PAGE_SIZE,	/* algnmnt, boundary */
 				   BUS_SPACE_MAXADDR,	/* lowaddr */
 				   BUS_SPACE_MAXADDR,	/* highaddr */


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