Author: jfv
Date: Mon Nov 16 18:58:45 2009
New Revision: 199327
URL: http://svn.freebsd.org/changeset/base/199327
Log:
On a 32 bit kernel the igb driver may cause a page
fault panic due to a failed bounce page allocation
during RX mbuf setup. The large demand on bounce pages
is due to the alignment requirement in the tag. This
restriction was removed in the ixgbe driver with no
ill effects and so is being removed here also.
Modified:
stable/8/sys/dev/e1000/if_igb.c
Directory Properties:
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/xen/xenpci/ (props changed)
stable/8/sys/netinet6/ (props changed)
Modified: stable/8/sys/dev/e1000/if_igb.c
==============================================================================
--- stable/8/sys/dev/e1000/if_igb.c Mon Nov 16 18:50:51 2009
(r199326)
+++ stable/8/sys/dev/e1000/if_igb.c Mon Nov 16 18:58:45 2009
(r199327)
@@ -2654,7 +2654,7 @@ igb_dma_malloc(struct adapter *adapter,
int error;
error = bus_dma_tag_create(bus_get_dma_tag(adapter->dev), /* parent */
- IGB_DBA_ALIGN, 0, /* alignment, bounds */
+ 1, 0, /* alignment, bounds */
BUS_SPACE_MAXADDR, /* lowaddr */
BUS_SPACE_MAXADDR, /* highaddr */
NULL, NULL, /* filter, filterarg */
@@ -2867,7 +2867,7 @@ igb_allocate_transmit_buffers(struct tx_
* Setup DMA descriptor areas.
*/
if ((error = bus_dma_tag_create(NULL, /* parent */
- PAGE_SIZE, 0, /* alignment, bounds */
+ 1, 0, /* alignment, bounds */
BUS_SPACE_MAXADDR, /* lowaddr */
BUS_SPACE_MAXADDR, /* highaddr */
NULL, NULL, /* filter, filterarg */
@@ -3554,7 +3554,7 @@ igb_allocate_receive_buffers(struct rx_r
** it may not always use this.
*/
if ((error = bus_dma_tag_create(NULL, /* parent */
- PAGE_SIZE, 0, /* alignment, bounds */
+ 1, 0, /* alignment, bounds */
BUS_SPACE_MAXADDR, /* lowaddr */
BUS_SPACE_MAXADDR, /* highaddr */
NULL, NULL, /* filter, filterarg */
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