[dpdk-dev] [PATCH v3 0/8] Add crypto PMD optimized for ARMv8
hemant.agrawal at nxp.com
Mon Jan 16 07:57:12 CET 2017
> -----Original Message-----
> From: Zbigniew Bodek [mailto:zbigniew.bodek at caviumnetworks.com]
> Subject: Re: [PATCH v3 0/8] Add crypto PMD optimized for ARMv8
> On 13.01.2017 09:07, Hemant Agrawal wrote:
> > On 1/4/2017 11:03 PM, zbigniew.bodek at caviumnetworks.com wrote:
> >> From: Zbigniew Bodek <zbigniew.bodek at caviumnetworks.com>
> >> Introduce crypto poll mode driver using ARMv8 cryptographic
> >> extensions. This PMD is optimized to provide performance boost for
> >> chained crypto operations processing, such as:
> >> * encryption + HMAC generation
> >> * decryption + HMAC validation.
> >> In particular, cipher only or hash only operations are not provided.
> > Do you have a plan to add the crypto only, auth/hash only support into
> > this driver?
> OpenSSL driver is already implementing that and it is optimized for ARMv8.
[Hemant] Agreed that openSSL driver implement it, however it will make the application little complex to initiates both driver instances and then choose the driver based on the algorithm.
> > Also, do you plan to add additional cases w.r.t supported by other
> > crypto driver?
> We may do it in the future but this depends on our resource availability.
> >> Performance gain can be observed in tests against OpenSSL PMD which
> >> also uses ARM crypto extensions for packets processing.
> >> Exemplary crypto performance tests comparison:
> >> cipher_hash. cipher algo: AES_CBC
> >> auth algo: SHA1_HMAC cipher key size=16.
> >> burst_size: 64 ops
> >> ARMv8 PMD improvement over OpenSSL PMD (Optimized for ARMv8 cipher
> >> only and hash only cases):
> >> Buffer
> >> Size(B) OPS(M) Throughput(Gbps)
> >> 64 729 % 742 %
> >> 128 577 % 592 %
> >> 256 483 % 476 %
> >> 512 336 % 351 %
> >> 768 300 % 286 %
> >> 1024 263 % 250 %
> >> 1280 225 % 229 %
> >> 1536 214 % 213 %
> >> 1792 186 % 203 %
> >> 2048 200 % 193 %
> >> The driver currently supports AES-128-CBC in combination with: SHA256
> >> HMAC and SHA1 HMAC.
> >> The core crypto functionality of this driver is provided by the
> >> external armv8_crypto library that can be downloaded from the Cavium
> >> repository:
> >> https://github.com/caviumnetworks/armv8_crypto
[Hemant] Thanks for the good work.
Is it possible to get it hosted on a standard and neutral place? E.g. Linaro
It will make it easier for other ARM vendors to contribute.
> >> CPU compatibility with this virtual device is detected in run-time
> >> and virtual crypto device will not be created if CPU doesn't provide
> >> AES, SHA1, SHA2 and NEON.
> >> The functionality and performance of this code can be tested using
> >> generic test application with the following commands:
> >> * cryptodev_sw_armv8_autotest
> >> * cryptodev_sw_armv8_perftest
> >> New test vectors and cases have been added to the general pool. In
> >> particular SHA1 and
> >> SHA256 HMAC for short cases were introduced.
> >> This is because low-level ARM assembly code is using different code
> >> paths for long and short data sets, so in order to test the mentioned
> >> driver correctly, two different data sets need to be provided.
> >> ---
> >> v3:
> >> * Addressed review remarks
> >> * Moved low-level assembly code to the external library
> >> * Removed SHA256 MAC cases
> >> * Various fixes: interface to the library, digest destination
> >> and source address interpreting, missing mbuf manipulations.
> >> v2:
> >> * Fixed checkpatch warnings
> >> * Divide patches into smaller logical parts
> >> Zbigniew Bodek (8):
> >> mk: fix build of assembly files for ARM64
> >> lib: add cryptodev type for the upcoming ARMv8 PMD
> >> crypto/armv8: add PMD optimized for ARMv8 processors
> >> mk/crypto/armv8: add PMD to the build system
> >> doc/armv8: update documentation about crypto PMD
> >> crypto/armv8: enable ARMv8 PMD in the configuration
> >> crypto/armv8: update MAINTAINERS entry for ARMv8 crypto
> >> app/test: add ARMv8 crypto tests and test vectors
> >> MAINTAINERS | 6 +
> >> app/test/test_cryptodev.c | 63 ++
> >> app/test/test_cryptodev_aes_test_vectors.h | 144 +++-
> >> app/test/test_cryptodev_blockcipher.c | 4 +
> >> app/test/test_cryptodev_blockcipher.h | 1 +
> >> app/test/test_cryptodev_perf.c | 480 +++++++++++++
> >> config/common_base | 6 +
> >> doc/guides/cryptodevs/armv8.rst | 96 +++
> >> doc/guides/cryptodevs/index.rst | 1 +
> >> doc/guides/rel_notes/release_17_02.rst | 5 +
> >> drivers/crypto/Makefile | 1 +
> >> drivers/crypto/armv8/Makefile | 73 ++
> >> drivers/crypto/armv8/rte_armv8_pmd.c | 926
> >> +++++++++++++++++++++++++
> >> drivers/crypto/armv8/rte_armv8_pmd_ops.c | 369 ++++++++++
> >> drivers/crypto/armv8/rte_armv8_pmd_private.h | 211 ++++++
> >> drivers/crypto/armv8/rte_armv8_pmd_version.map | 3 +
> >> lib/librte_cryptodev/rte_cryptodev.h | 3 +
> >> mk/arch/arm64/rte.vars.mk | 1 -
> >> mk/rte.app.mk | 2 +
> >> mk/toolchain/gcc/rte.vars.mk | 6 +-
> >> 20 files changed, 2390 insertions(+), 11 deletions(-) create mode
> >> 100644 doc/guides/cryptodevs/armv8.rst create mode 100644
> >> drivers/crypto/armv8/Makefile create mode 100644
> >> drivers/crypto/armv8/rte_armv8_pmd.c
> >> create mode 100644 drivers/crypto/armv8/rte_armv8_pmd_ops.c
> >> create mode 100644 drivers/crypto/armv8/rte_armv8_pmd_private.h
> >> create mode 100644 drivers/crypto/armv8/rte_armv8_pmd_version.map
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