+ Jason Gunthorpe, he may be interested in this. On Fri, May 22, 2015 at 03:33:46PM +0200, Boris Brezillon wrote: > Hello, > > This patch series adds a new driver supporting Marvell's CESA IP. > This driver addresses some limitations of the existing one. > From a performance and CPU load point of view the most important > limitation in the existing driver is the lack of DMA support, thus > preventing us from chaining crypto operations. > > I know we usually try to adapt existing drivers instead of replacing them > by new ones, but after trying to refactor the mv_cesa driver I realized it > would take longer than writing an new one from scratch. > > Here are the main features brought by this new driver: > - support for armada SoCs (up to 38x) while keeping support for older ones > (Orion and Kirkwood). Note that old DT bindings (those used on Orion and > Kirkwood platforms) are supported, or IOTW, old DTs are compatible with > this new driver. > - DMA mode to offload the CPU in case of intensive crypto usage > - new algorithms: SHA256, DES and 3DES > > In addition to this driver comes a bunch of DT updates adding crypto device > nodes to several Marvell SoCs (those are only the tested ones, others might > be added later). > > I'd like to thank Arnaud, who has carefully reviewed several iterations of > this driver, helped me improved my implementation, provided support for > several crypto algorithms, provided support for armada-370 and tested > the driver on different platforms, hence the SoB and dual MODULE_AUTHOR > in the driver code. > > Best Regards, > > Boris > > Changes since v2: > - fixes in the cipher code (->dst_nents was assigned the ->src_nents > value and CBC state was overwritten by the IV after each chunk > operation) > - spit the code as suggested by Sebastian > > Changes since v1: > - (suggested by Jason) kept the existing CESA driver and added a mechanism > to prevent the new driver from probing devices handled my the existing > one (Orion and Kirkwood platforms) > - (reported by Paul) addressed a few Kconfig and module definition issues > - (suggested by Andrew) added DT changes to the series > > Arnaud Ebalard (6): > crypto: marvell/CESA: add Triple-DES support > crypto: marvell/CESA: add MD5 support > crypto: marvell/CESA: add SHA256 support > crypto: marvell/CESA: add support for Kirkwood SoCs > ARM: marvell/dt: add crypto node to armada 370 dtsi > ARM: marvell/dt: add crypto node to kirkwood dtsi > > Boris Brezillon (10): > crypto: mv_cesa: request registers memory region > crypto: add a new driver for Marvell's CESA > crypto: marvell/CESA: add TDMA support > crypto: marvell/CESA: add DES support > crypto: marvell/CESA: add support for all armada SoCs > crypto: marvell/CESA: add allhwsupport module parameter > crypto: marvell/CESA: add support for Orion SoCs > crypto: marvell/CESA: update DT bindings documentation > ARM: marvell/dt: add crypto node to armada-xp.dtsi > ARM: marvell/dt: enable crypto on armada-xp-gp > > .../devicetree/bindings/crypto/marvell-cesa.txt | 46 + > arch/arm/boot/dts/armada-370.dtsi | 20 + > arch/arm/boot/dts/armada-xp-gp.dts | 4 +- > arch/arm/boot/dts/armada-xp.dtsi | 31 + > arch/arm/boot/dts/kirkwood.dtsi | 2 +- > drivers/crypto/Kconfig | 18 + > drivers/crypto/Makefile | 1 + > drivers/crypto/marvell/Makefile | 2 + > drivers/crypto/marvell/cesa.c | 543 ++++++++ > drivers/crypto/marvell/cesa.h | 804 ++++++++++++ > drivers/crypto/marvell/cipher.c | 769 +++++++++++ > drivers/crypto/marvell/hash.c | 1349 ++++++++++++++++++++ > drivers/crypto/marvell/tdma.c | 224 ++++ > drivers/crypto/mv_cesa.c | 13 +- > 14 files changed, 3816 insertions(+), 10 deletions(-) > create mode 100644 Documentation/devicetree/bindings/crypto/marvell-cesa.txt > create mode 100644 drivers/crypto/marvell/Makefile > create mode 100644 drivers/crypto/marvell/cesa.c > create mode 100644 drivers/crypto/marvell/cesa.h > create mode 100644 drivers/crypto/marvell/cipher.c > create mode 100644 drivers/crypto/marvell/hash.c > create mode 100644 drivers/crypto/marvell/tdma.c > > -- > 1.9.1 > -- To unsubscribe from this list: send the line "unsubscribe linux-crypto" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
