Am Freitag, 27. Februar 2015, 11:35:38 schrieb Tadeusz Struk: Hi Tadeusz, > The way the algif_skcipher works currently is that on sendmsg/sendpage it > builds an sgl for the input data and then on read/recvmsg it sends the job > for encryption putting the user to sleep till the data is processed. > This way it can only handle one job at a given time. > To be able to fuly utilize the potential of existing crypto hardware > accelerators it is required to submit multiple jobs in asynchronously. > This series adds support for asynchronous operations for algif_skcipher. > First patch enables af_alg sgl to be linked. > Second patch implement asynch read for skcipher. > > Resend with updates for 4.0 As you may know, I am working on libkcapi [1] to cover the user space AF_ALG interface and provide an easy-to use interface for applications. I am now trying to cover your interface proposal there and also measure the speed of it. What bothers me currently is the following: how would I be able to detect whether the implemented support is available in the current kernel? For the different AF_ALG interfaces (like the recently added AEAD), I can detect missing support at the time I call the socket() syscall. Thus, the application knows right from the start whether we have the requested support. But for the AIO interface, how can I detect that at runtime at a time an application can reasonably catch a missing support? [1] http://www.chronox.de/libkcapi.html > > Signed-off-by: Tadeusz Struk <tadeusz.struk@xxxxxxxxx> > --- > Tadeusz Struk (2): > crypto: af_alg - Allow to link sgl > crypto: algif - change algif_skcipher to be asynchronous > > > crypto/af_alg.c | 18 ++- > crypto/algif_skcipher.c | 308 > ++++++++++++++++++++++++++++++++++++++++++++++- include/crypto/if_alg.h | > 4 - > 3 files changed, 317 insertions(+), 13 deletions(-) > -- > 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 -- Ciao Stephan -- 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
