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authorDan Williams <dan.j.williams@intel.com>2009-11-19 17:07:57 -0700
committerDan Williams <dan.j.williams@intel.com>2009-11-19 17:07:57 -0700
commit6f82b83b7a56bc6e9dd6d7b93531dde6027c5309 (patch)
treed6f9fc6064e60711e1d041a48d8ff0927ca819e7
parent228c4f5cfbf1cda411d9aa7204a612a63c89b1e8 (diff)
downloadlinux-6f82b83b7a56bc6e9dd6d7b93531dde6027c5309.tar.bz2
ioat2,3: disable asynchronous error notifications
Error interrupts and error completions may cause channel hangs, so poll the channel status register after a timeout. Signed-off-by: Dan Williams <dan.j.williams@intel.com>
-rw-r--r--drivers/dma/ioat/registers.h4
1 files changed, 1 insertions, 3 deletions
diff --git a/drivers/dma/ioat/registers.h b/drivers/dma/ioat/registers.h
index 63038e18ab03..f015ec196700 100644
--- a/drivers/dma/ioat/registers.h
+++ b/drivers/dma/ioat/registers.h
@@ -92,9 +92,7 @@
#define IOAT_CHANCTRL_ERR_COMPLETION_EN 0x0004
#define IOAT_CHANCTRL_INT_REARM 0x0001
#define IOAT_CHANCTRL_RUN (IOAT_CHANCTRL_INT_REARM |\
- IOAT_CHANCTRL_ERR_COMPLETION_EN |\
- IOAT_CHANCTRL_ANY_ERR_ABORT_EN |\
- IOAT_CHANCTRL_ERR_INT_EN)
+ IOAT_CHANCTRL_ANY_ERR_ABORT_EN)
#define IOAT_DMA_COMP_OFFSET 0x02 /* 16-bit DMA channel compatibility */
#define IOAT_DMA_COMP_V1 0x0001 /* Compatibility with DMA version 1 */