Hello Hemant,
Thank you for your remarks and comments. Please check my answer below.
Kind regards
Zbigniew
On 13.01.2017 09:07, Hemant Agrawal wrote:
On 1/4/2017 11:03 PM, zbigniew.bo...@caviumnetworks.com wrote:
From: Zbigniew Bodek <zbigniew.bo...@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.
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
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
