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Code Issues Releases Activity

Revert the use of BUS_DMA_ALLOCNOW when creating the DMA tag for user

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data introduced in r236061. Using that flag doesn't make that much
sense on this case as the DMA maps using it are also created during
sym_pci_attach(). Moreover, due to the maxsegsz parameter used, doing
so may exhaust the bounce pages pool on architectures requiring
bounce pages. [1]
While at it, use a slightly more appropriate maxsegsz parameter.

PR:		169526
Submitted by:	Mike Watters [1]
MFC after:	3 days
This commit is contained in:
Marius Strobl 2012-07-19 14:43:46 +00:00
parent 5cb470c830
commit 6d36859855
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=238621
1 changed files with 2 additions and 2 deletions
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4
sys/dev/sym/sym_hipd.c
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@ -8537,8 +8537,8 @@ sym_pci_attach(device_t dev)
*/
if (bus_dma_tag_create(np->bus_dmat, 1, SYM_CONF_DMA_BOUNDARY,
BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL,
BUS_SPACE_MAXSIZE, SYM_CONF_MAX_SG, SYM_CONF_DMA_BOUNDARY,
BUS_DMA_ALLOCNOW, busdma_lock_mutex, &np->mtx, &np->data_dmat)) {
BUS_SPACE_MAXSIZE_32BIT, SYM_CONF_MAX_SG, SYM_CONF_DMA_BOUNDARY,
0, busdma_lock_mutex, &np->mtx, &np->data_dmat)) {
device_printf(dev, "failed to create DMA tag.\n");
goto attach_failed;
}