Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=34996acc5571e64be7f3dba3adced1f7221a8d07
Commit: 34996acc5571e64be7f3dba3adced1f7221a8d07
Parent: 20d2d3afa87781fe2674ce17bfb16af08a436e81
Author: Kai Makisara <[EMAIL PROTECTED]>
AuthorDate: Fri Oct 5 15:54:58 2007 -0400
Committer: James Bottomley <[EMAIL PROTECTED]>
CommitDate: Tue Oct 23 15:07:45 2007 -0400
[SCSI] sym53c8xx: Work around 53c896 erratum
Prevent DMA transfers from crossing the 16MB limit for early 53c896 chips.
Signed-off-by: Matthew Wilcox <[EMAIL PROTECTED]>
Signed-off-by: James Bottomley <[EMAIL PROTECTED]>
---
drivers/scsi/sym53c8xx_2/sym_glue.c | 4 ++++
1 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/drivers/scsi/sym53c8xx_2/sym_glue.c
b/drivers/scsi/sym53c8xx_2/sym_glue.c
index db03c4c..4416939 100644
--- a/drivers/scsi/sym53c8xx_2/sym_glue.c
+++ b/drivers/scsi/sym53c8xx_2/sym_glue.c
@@ -1531,6 +1531,10 @@ static struct Scsi_Host * __devinit sym_attach(struct
scsi_host_template *tpnt,
BUG_ON(sym2_transport_template == NULL);
instance->transportt = sym2_transport_template;
+ /* 53c896 rev 1 errata: DMA may not cross 16MB boundary */
+ if (pdev->device == PCI_DEVICE_ID_NCR_53C896 && np->revision_id < 2)
+ instance->dma_boundary = 0xFFFFFF;
+
spin_unlock_irqrestore(instance->host_lock, flags);
return instance;
-
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