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Message-ID: <BCB48C05FCE8BC4D9E61E841ECBE6DB70E3D47@039-SN2MPN1-013.039d.mgd.msft.net> Date: Tue, 14 Aug 2012 09:04:09 +0000 From: Liu Qiang-B32616 <B32616@...escale.com> To: "dan.j.williams@...el.com" <dan.j.williams@...el.com>, "vinod.koul@...el.com" <vinod.koul@...el.com>, "dan.j.williams@...il.com" <dan.j.williams@...il.com>, "arnd@...db.de" <arnd@...db.de>, "herbert@...dor.apana.org.au" <herbert@...dor.apana.org.au>, "gregkh@...uxfoundation.org" <gregkh@...uxfoundation.org> CC: "linuxppc-dev@...ts.ozlabs.org" <linuxppc-dev@...ts.ozlabs.org>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, "linux-crypto@...r.kernel.org" <linux-crypto@...r.kernel.org>, "Ira W. Snyder" <iws@...o.caltech.edu> Subject: RE: [PATCH v7 0/8] Raid: enable talitos xor offload for improving performance Hi Vinod, Would you like to apply this series from patch 2/8 to 7/8) in your tree? The link as below, http://patchwork.ozlabs.org/patch/176023/ http://patchwork.ozlabs.org/patch/176024/ http://patchwork.ozlabs.org/patch/176025/ http://patchwork.ozlabs.org/patch/176026/ http://patchwork.ozlabs.org/patch/176027/ http://patchwork.ozlabs.org/patch/176028/ After that, Herbert will merge patch 1/8, http://patchwork.ozlabs.org/patch/176022/ and Greg apply patch 8/8, http://patchwork.ozlabs.org/patch/176029/ Thanks. > -----Original Message----- > From: Ira W. Snyder [mailto:iws@...o.caltech.edu] > Sent: Friday, August 10, 2012 1:03 AM > To: Liu Qiang-B32616 > Cc: linux-crypto@...r.kernel.org; vinod.koul@...el.com; > dan.j.williams@...el.com; herbert@...dor.hengli.com.au; arnd@...db.de; > gregkh@...uxfoundation.org; linuxppc-dev@...ts.ozlabs.org; linux- > kernel@...r.kernel.org; dan.j.williams@...il.com > Subject: Re: [PATCH v7 0/8] Raid: enable talitos xor offload for > improving performance > > On Thu, Aug 09, 2012 at 04:19:35PM +0800, qiang.liu@...escale.com wrote: > > Hi all, > > > > The following 8 patches enabling fsl-dma and talitos offload raid > > operations for improving raid performance and balancing CPU load. > > > > These patches include talitos, fsl-dma and carma module (caram uses > > some features of fsl-dma). > > > > 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%. > > > > "fwiw, I gave v5 a test-drive, setting up a RAID5 array on ramdisks > > [1], and this patchseries, along with FSL_DMA && NET_DMA set seems to > > be holding water, so this series gets my:" > > > > Tested-by: Kim Phillips <kim.phillips@...escale.com> > > > > The fsldma parts of the series all look great to me. > > Thanks, > Ira > > > [1] mdadm --create --verbose --force /dev/md0 --level=raid5 --raid- > devices=4 \ > > /dev/ram[0123] > > > > Changes in v7: > > - add test result which is provided by Kim Phillips; > > - correct one coding style issue in patch 5/8; > > - add comments by Arnd Bergmann in patch 6/8; > > > > Changes in v6: > > - swap the order of original patch 3/6 and 4/6; > > - merge Ira's patch to reduce the size of original patch; > > - merge Ira's patch of carma in 8/8; > > - update documents and descriptions according to Ira's advice; > > > > Changes in v5: > > - add detail description in patch 3/6 about the process of > completed > > descriptor, the process is in align with fsl-dma Reference Manual, > > illustrate the potential risk and how to reproduce it; > > - drop the patch 7/7 in v4 according to Timur's comments; > > > > 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 (8): > > Talitos: Support for async_tx XOR offload > > fsl-dma: remove attribute DMA_INTERRUPT of dmaengine > > fsl-dma: add fsl_dma_free_descriptor() to reduce code duplication > > fsl-dma: move functions to avoid forward declarations > > fsl-dma: change release process of dma descriptor for supporting > async_tx > > fsl-dma: use spin_lock_bh to instead of spin_lock_irqsave > > fsl-dma: fix a warning of unitialized cookie > > carma: remove unnecessary DMA_INTERRUPT capability > > > > drivers/crypto/Kconfig | 9 + > > drivers/crypto/talitos.c | 413 > ++++++++++++++++++++++++++ > > drivers/crypto/talitos.h | 53 ++++ > > drivers/dma/fsldma.c | 488 +++++++++++++++++------ > -------- > > drivers/dma/fsldma.h | 17 +- > > drivers/misc/carma/carma-fpga-program.c | 1 - > > drivers/misc/carma/carma-fpga.c | 2 +- > > 7 files changed, 761 insertions(+), 222 deletions(-) > > > > _______________________________________________ > > Linuxppc-dev mailing list > > Linuxppc-dev@...ts.ozlabs.org > > https://lists.ozlabs.org/listinfo/linuxppc-dev -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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