> I have encountered a problem with the new HiFn driver in 2.6.27, > cryptsetup and luks. the mailinglist you posted to mainly deals with loop-aes these days, the dm-crypt/luks/mainline loop-crypto guys for some obscure reason opted to start a mailinglist of the same name at linux-crypto@xxxxxxxxxxxxxxx, so you are better off asking there (blame them for confusing people). CC added, though I guess you need to subscribe to their holy shrine, anyway. And keep in mind that dm-crypt/yada is still beta-code, it's nowhere near stable. HTH > I am able to unlock my luks devices fine, but attempting to mount > the device will result in mount hanging forever (ps shows it as D+, > presumably it's waiting for I/O from the card), forcing me to > manually kill the process. If i then try to close the luks > partition luksClose informs me that the drive is in use. The > hifn_795x module will be locked as well in the process. > > However, as soon as I disable/remove the hifn_795x module prior to > mounting the device, everything works as it should yet again. > > It seems the HiFn card has taken over as the preferred module to > use for AES, according to /proc/crypto: > > ------------------------------ > name : cbc(aes) > driver : cbc-aes-hifn0 > module : hifn_795x > priority : 300 > (...) > ------------------------------ > name : aes > driver : aes-asm > module : kernel > priority : 200 > (...) > ------------------------------ > name : aes > driver : aes-generic > module : kernel > priority : 100 > (...) > ------------------------------ > > I have no idea what the problem might be, but I suppose the HiFn > card might not like my luks partitions (aes, cbc-essiv), or some > other incompatibility or other issues somewhere. > > Have anyone else experienced this behavior? Any possible solutions? > > Prior to the 2.6.27 kernel I was running OCF to handle my card, and > everything was working splendid, however the performance of the > HiFn RNG is many times higher with the built-in driver (from > ~300kb/s to ~2.5MB/s), and since my main beef with this card is the > RNG I would very much like to stay with the driver from 2.6.27. > > Is there any way to change the priority on these cipher modules so > the kernel ones would be used in preference of the hifn_795x ones? > I am perfectly happy doing luks and general AES in software, if > only there was a way for me to set their priority by hand. > > > > Best Regards, > Frode Moseng Monsson -- left blank, right bald loop-AES FAQ: http://mareichelt.de/pub/texts.loop-aes.php#faq - Linux-crypto: cryptography in and on the Linux system Archive: http://mail.nl.linux.org/linux-crypto/
