RE: [PATCH v4 0/7] Raid: enable talitos xor offload for improving performance
From: Liu Qiang-B32616 <hidden>
Date: 2012-07-30 02:06:10
Also in:
linux-crypto
Hi, Vinod, Dan, ping?
-----Original Message-----
From: linux-crypto-owner@vger.kernel.org [mailto:linux-crypto-
owner@vger.kernel.org] On Behalf Of qiang.liu@freescale.com
Sent: Friday, July 27, 2012 5:16 PM
To: linux-crypto@vger.kernel.org; vinod.koul@intel.com;
dan.j.williams@intel.com; herbert@gondor.hengli.com.au; linuxppc-
dev@lists.ozlabs.org
Cc: Li Yang-R58472; Phillips Kim-R1AAHA
Subject: [PATCH v4 0/7] Raid: enable talitos xor offload for improving
performance
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Hi,
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The following 7 patches enabling fsl-dma and talitos offload raid
operations for improving raid performance and balancing CPU load.
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Write performance will be improved by 25-30% tested by iozone.
Write performance is improved about 2% after using spin_lock_bh replace
spin_lock_irqsave.
CPU load will be reduced by 8%.
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Changes in V4:
- fix an error in talitos when dest addr is same with src addr,
dest
should be freed only one time if src is same with dest addr;
- correct coding style in fsl-dma according to Ira's comments;
- fix a race condition in fsl-dma fsl_tx_status(), remove the
interface
which is used to free descriptors in queue ld_completed, this
interface
has been included in fsldma_cleanup_descriptor(), in v3, there is
one
place missed spin_lock protect;
- split the original patch 3/4 up to 2 patches 3/7 and 4/7
according to
Li Yang's comments.
- fix a warning of unitialized cookie;
- add memory copy self test in fsl-dma;
- add more detail description about use spin_lock_bh() to instead
of
spin_lock_irqsave() according to Timur's comments;
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Changes in v3:
- change release process of fsl-dma descriptor for resolve the
potential race condition
- add test result when use spin_lock_bh replace spin_lock_irqsave
- modify the benchmark results according to the latest patch
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Changes in v2:
- rebase onto cryptodev tree
- split the patch 3/4 up to 3 independent patches
- remove the patch 4/4, the fix is not for cryptodev tree
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Qiang Liu (4):
Talitos: Support for async_tx XOR offload
fsl-dma: remove attribute DMA_INTERRUPT of dmaengine
fsl-dma: change release process of dma descriptor for supporting
async_tx
fsl-dma: use spin_lock_bh to instead of spin_lock_irqsave
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Qiang Liu (7):
Talitos: Support for async_tx XOR offload
fsl-dma: remove attribute DMA_INTERRUPT of dmaengine
fsl-dma: change release process of dma descriptor for supporting
async_tx
fsl-dma: move the function ahead of its invoke function
fsl-dma: use spin_lock_bh to instead of spin_lock_irqsave
fsl-dma: fix a warning of unitialized cookie
fsl-dma: add memcpy self test interface
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drivers/crypto/Kconfig | 9 +
drivers/crypto/talitos.c | 413 ++++++++++++++++++++++++++++++++++
drivers/crypto/talitos.h | 53 +++++
drivers/dma/fsldma.c | 550 +++++++++++++++++++++++++++++-----------
------
drivers/dma/fsldma.h | 1 +
5 files changed, 822 insertions(+), 204 deletions(-)
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