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With an i386 kernel the igb driver can cause a

Browse source 
page fault panic on initialization due to a large
number of bounce pages being allocated. This is due
to the dma tag requiring page alignment on mbuf mapping.
This was removed some time back from the ixgbe driver
and is not needed here either.
This commit is contained in:
Jack F Vogel 2009-11-11 19:13:40 +00:00
parent 6c2af98cee
commit 466727ddbe
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=199192
1 changed files with 3 additions and 3 deletions
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6
sys/dev/e1000/if_igb.c
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@ -2654,7 +2654,7 @@ igb_dma_malloc(struct adapter *adapter, bus_size_t size,
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_ring *txr)
* 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_ring *rxr)
** 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 */