From: Dan Williams <dan.j.williams@intel.com>
To: linux-kernel@vger.kernel.org
Cc: linux-raid@vger.kernel.org, maciej.sosnowski@intel.com
Subject: [PATCH 3/8] ioat2,3: disable asynchronous error notifications
Date: Fri, 20 Nov 2009 00:06:29 -0700 [thread overview]
Message-ID: <20091120070629.13478.67985.stgit@dwillia2-linux.ch.intel.com> (raw)
In-Reply-To: <20091120070506.13478.77838.stgit@dwillia2-linux.ch.intel.com>
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>
---
drivers/dma/ioat/registers.h | 4 +---
1 files changed, 1 insertions(+), 3 deletions(-)
diff --git a/drivers/dma/ioat/registers.h b/drivers/dma/ioat/registers.h
index 63038e1..f015ec1 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 */
next prev parent reply other threads:[~2009-11-20 7:06 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-11-20 7:06 [PATCH 0/8] ioat fixes for 2.6.32 Dan Williams
2009-11-20 7:06 ` [PATCH 1/8] ioat: silence "dca disabled" messages Dan Williams
2009-11-20 7:06 ` [PATCH 2/8] ioat3: dca and raid operations are incompatible Dan Williams
2009-11-20 7:06 ` Dan Williams [this message]
2009-11-20 7:06 ` [PATCH 4/8] ioat3: specify valid address for disabled-Q or disabled-P Dan Williams
2009-11-20 7:06 ` [PATCH 5/8] ioat2,3: report all uncorrectable errors Dan Williams
2009-11-20 7:06 ` [PATCH 6/8] dmaengine: include xor/pq validate in device_has_all_tx_types() Dan Williams
2009-11-20 7:06 ` [PATCH 7/8] async_tx: build-time toggling of async_{syndrome, xor}_val dma support Dan Williams
2009-11-20 7:06 ` [PATCH 8/8] ioat3: fix pq completion versus channel deallocation race Dan Williams
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