Hi Phil, These two patches add CIOCHASH ioctl that targets only hash operations. It is a proof of concept with the goal of improving digest performance and make better use of Linux crypto-API. Please ignore code duplication.
My proposal aims to complete the design of the current cryptodev API so that both init-update-finalize and digest operations are available. A smart user can calibrate how much data to buffer before calling update (to offset the ioctl costs) or can decide upfront for one method or the other. (Openssl for example buffers the whole data and then calls cryptodev-update through CIOCCRYPT). In a particular machine, cryptodev/tests/speed.c reports for SHA1 0.25GB/s with CIOCCRYPT and 0.29GB/s with CIOCHASH. Please share your feedback for improving this prototype. Crisitan S. Cristian Stoica (2): extend API with CIOCHASH to support direct hash operations use directly crypto API digest operation for CIOCHASH crypto/cryptodev.h | 16 ++++++ cryptodev_int.h | 10 ++++ ioctl.c | 155 ++++++++++++++++++++++++++++++++++++++++++++++++++++- main.c | 38 ++++++++++++- 4 files changed, 216 insertions(+), 3 deletions(-) -- 2.4.10 _______________________________________________ Cryptodev-linux-devel mailing list Cryptodev-linux-devel@gna.org https://mail.gna.org/listinfo/cryptodev-linux-devel
