From: Subject: [PATCH v4 0/7] Raid: enable talitos xor offload for improving performance Date: Fri, 27 Jul 2012 17:15:31 +0800 Message-ID: <1343380531-11953-1-git-send-email-qiang.liu@freescale.com> Mime-Version: 1.0 Content-Type: text/plain Cc: , To: , , , , Return-path: Received: from co1ehsobe001.messaging.microsoft.com ([216.32.180.184]:7826 "EHLO co1outboundpool.messaging.microsoft.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751609Ab2G0JP7 (ORCPT ); Fri, 27 Jul 2012 05:15:59 -0400 Sender: linux-crypto-owner@vger.kernel.org List-ID: Hi, The following 7 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 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; 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 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 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(-)