Hello, the driver is not yet ready. It produced a kernel panic error. I will send it to the developer and I will post here when the driver is ready.
Regards Andreas Andreas Gerlich wrote: > Hello, > > I'am in contact with the developer of the HIFN 795x driver for > Linux, Mr. Evgeniy Polyakov. > > The hifn_795x driver uses the HIFN 7955 crypto engine on the > vpn1401/1411 boards of Soekris. > > In the URL > > wget http://www.mathematik.uni-ulm.de/users/ag/hifn_795x.c > > is the newest HIFN 795x driver (hifn_795x.c) for the > Linux kernel 2.6.27.4. > It runs also with the newest latest stable kernel 2.6.27.6 > from 2008-11-13 18:42 UTC from www.kernel.org. > (I test it and use this kernel on my net5501-70 board.) > > Replace the hifn_795x.c in > /usr/src/linux-2.6.27.<x>/drivers/crypto/ . > > IMPORTANT: Disable the use of the geode-aes engine when you > ========== make the kernel !!! > Give in "make menuconfig" > --> Cryptographic API > --> Hardware crypto devices > --> Support for the Geode LX AES engine (give "no") > --> Driver HIFN 795x crypto accelerator chips (give "m" > for module) > > The two hardware crypto engines can not work parallel!!! > > The default kernel loads both drivers!!! > If both drivers are loaded, you can't use the > hifn_795x!!! Instead are used the slow software > implementation of AES when you use keysize > 256 bits. The geode-aes engine can only work > with keysize of 128 bits. > > Short benchmarks: > ----------------- > Hardware which I use: net5501-70 with vpn1401 (PCI-Card) > (Users with vpn1411 mini-pci-card, please > report it if the driver works with this card.) > > Software which I use: Latest stable kernel 2.6.27.6 from > www.kernel.org. > > Chiper of the crypted partition: aes-cbc-essiv:sha256, keysize: 256 bits > > With hifn_795x driver: > ---------------------------------------------------------------------- > (/misc is mounted to the crypted partition) > > piepmatz:/misc# time dd if=/dev/zero of=xxx.img bs=1024 count=700000 > 700000+0 Datensätze ein > 700000+0 Datensätze aus > 716800000 Bytes (717 MB) kopiert, 68,0707 s, 10,5 MB/s > > real 1m9.206s > user 0m0.536s > sys 0m7.312s > piepmatz:/misc# time cat xxx.img >/dev/null > > real 1m12.737s > user 0m0.080s > sys 0m2.596s > piepmatz:/misc# > > ---------------------------------------------------------------------- > > > =========================================================================== > > As referece the software implementation of AES: > > --------------------------------------------------------------------------- > piepmatz:/misc# time dd if=/dev/zero of=xxx.img bs=1024 count=700000 > 700000+0 Datensätze ein > 700000+0 Datensätze aus > 716800000 Bytes (717 MB) kopiert, 128,616 s, 5,6 MB/s > > real 2m8.711s > user 0m0.616s > sys 0m6.652s > piepmatz:/misc# time cat xxx.img >/dev/null > > real 2m2.761s > user 0m0.080s > sys 0m2.368s > piepmatz:/misc# > --------------------------------------------------------------------------- > > With the HIFN 7955 crypto engine the throughput is 10,5 MB/s, nearly > the double of the software implementation of AES. Therefore the time > is nearly the half. > > Regards > Andreas Gerlich -- Andreas Gerlich, University of Ulm, Germany open source project --> http://yaze-ag.de/ (Yet Another Z80 Emulator) _______________________________________________ Soekris-tech mailing list Soekris-tech@lists.soekris.com http://lists.soekris.com/mailman/listinfo/soekris-tech
