[dpdk-dev] [PATCH v3 0/8] Add crypto PMD optimized for ARMv8
Hemant Agrawal
hemant.agrawal at nxp.com
Fri Jan 13 09:07:49 CET 2017
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?
Also, do you plan to add additional cases w.r.t supported by other
crypto driver?
> 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
>
> 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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