The following 4 patches enabling fsl-dma and talitos offload raid
operations for improving raid performance and balancing CPU load.
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%.
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
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
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
drivers/crypto/Kconfig | 9 +
drivers/crypto/talitos.c | 410 +++++++++++++++++++++++++++++++++++++++++++
drivers/crypto/talitos.h | 53 ++++++
drivers/dma/fsldma.c | 436 +++++++++++++++++++++++++---------------------
drivers/dma/fsldma.h | 1 +
5 files changed, 708 insertions(+), 201 deletions(-)
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