> -----Original Message----- > From: Maciej Pijanowski <maciej.pijanowski@xxxxxxxxx> > Sent: Tuesday, February 2, 2021 10:16 AM > To: Van Leeuwen, Pascal <pvanleeuwen@xxxxxxxxxx>; linux-crypto@xxxxxxxxxxxxxxx > Cc: antoine.tenart@xxxxxxxxxxx; pascalvanl@xxxxxxxxx; Piotr Król <piotr.krol@xxxxxxxxx> > Subject: Re: safexcel driver for EIP197 and mini firmware features > > <<< External Email >>> > > On 02.02.2021 09:48, Van Leeuwen, Pascal wrote: > > Hello Maciej, > Hello, > > > >> -----Original Message----- > >> From: Maciej Pijanowski <maciej.pijanowski@xxxxxxxxx> > >> Sent: Monday, February 1, 2021 7:53 PM > >> To: linux-crypto@xxxxxxxxxxxxxxx > >> Cc: antoine.tenart@xxxxxxxxxxx; pascalvanl@xxxxxxxxx; Piotr Król <piotr.krol@xxxxxxxxx> > >> Subject: safexcel driver for EIP197 and mini firmware features > >> > >> <<< External Email >>> > >> Hello, > >> > >> I am interested in using the EIP197 crypto accelerator. I am aware that > >> it requires an NDA > >> to obtain the firmware for it, but I found out that there is some kind > >> of "minifw" as well > >> in the linux-firmware tree [3]. I found no description of it - I would > >> like to learn what > >> are the features and limitations of this "minifw". > >> > > Actually, from the perspective of what that firmware normally does, it does not have any features > > at all :-) Ok, except for cache invalidates, which the EIP-197 requires. > > It just bypasses everything from the inputs to the internal crypto engine, effectively turning the > > EIP-197 into an EIP-97 with caches & prefetching. > > > > But that's OK for the Linux kernel driver, because that was using the EIP-197 in EIP-97 backward > > compatibility mode anyway. It does not support any advanced EIP-197 firmware features. > > So from the perspective of the current Linux driver: no limitations. > Thank you very much for the response. That is much more clear now. > > > >> I started with using it on the Debian image from board vendor [2]. The > >> kernel here is > >> 5.1.0. The firmware is loaded, but the ALG tests are all failing: > >> > >> [14785.750246] crypto-safexcel f2800000.crypto: firmware: direct-loading > >> firmware inside-secure/eip197b/ifpp.bin > >> [14785.762765] crypto-safexcel f2800000.crypto: firmware: direct-loading > >> firmware inside-secure/eip197b/ipue.bin > >> [14785.777978] alg: skcipher: safexcel-cbc-des encryption test failed > >> (wrong output IV) on test vector 0, cfg="in-place" > >> [14785.788661] 00000000: fe dc ba 98 76 54 32 10 > >> [14785.800606] alg: skcipher: safexcel-cbc-des3_ede encryption test > >> failed (wrong output IV) on test vector 0, cfg="in-place" > >> [14785.811720] 00000000: 7d 33 88 93 0f 93 b2 42 > >> [14785.823734] alg: skcipher: safexcel-cbc-aes encryption test failed > >> (wrong output IV) on test vector 0, cfg="in-place" > >> [14785.834439] 00000000: 3d af ba 42 9d 9e b4 30 b4 22 da 80 2c 9f ac 41 > >> [14785.884568] alg: hash: safexcel-hmac-sha224 test failed (wrong > >> result) on test vector 3, cfg="init+update+update+final two even splits" > >> [14785.901836] alg: hash: safexcel-hmac-sha256 test failed (wrong > >> result) on test vector 2, cfg="import/export" > >> [14785.926693] alg: aead: safexcel-authenc-hmac-sha1-cbc-aes encryption > >> test failed (wrong result) on test vector 0, cfg="misaligned splits > >> crossing pages, inplace" > >> [14785.944430] alg: No test for authenc(hmac(sha224),cbc(aes)) > >> (safexcel-authenc-hmac-sha224-cbc-aes) > >> [14785.956978] alg: aead: safexcel-authenc-hmac-sha256-cbc-aes > >> encryption test failed (wrong result) on test vector 0, cfg="two even > >> aligned splits" > >> [14785.973472] alg: No test for authenc(hmac(sha384),cbc(aes)) > >> (safexcel-authenc-hmac-sha384-cbc-aes) > >> [14785.986103] alg: aead: safexcel-authenc-hmac-sha512-cbc-aes > >> encryption test failed (wrong result) on test vector 0, cfg="two even > >> aligned splits" > >> > > Ok, that is unexpected. Although I know there is one particular kernel version that was broken. > > So you might want to try a slightly newer one. > > (I'd love to try 5.1 myself but I don't have access to the hardware right now, working from home) > I am going to try with 5.10.12 and let you know with the results. > > > >> I am going to test it with more recent, mainline kernel as well, but it > >> would be still nice to learn > >> a little bit more about this "minifw", it's features, and what could be > >> possibly achieved on this > >> board without proprietary (and behind NDA) crypto firmware. > >> > > Everything the kernel driver currently supports. > > The real firmware is for doing full protocol offload (like IPsec, DTLS, etc.) which the Linux kernel > > does not currently support anyway. (unfortunately, I might add) > Are you aware of any other system (OS) or implementation which takes > advantage of more of the EIP197 features (like the mentioned IPsec offload)? > For the specific integration case of the 8040, which is bus attached lookaside, something like OpenDataPlane or DPDK should work, provided you have drivers for the EIP-197. Which have to come from the chip vendor, as we only provide driver development kits (to our customers only), not final drivers. Official maintainer of the kernel driver is still Bootlin, who worked on this on behalf of Marvell. I'm just helping out where I can. (Interestingly, it seems like Antoine - still the official maintainer - has left Bootlin?) I know Marvell has an ODP driver for the EIP-197, but IIRC that is from before they actually added protocol offload to ODP, so it's probably still basic crypto only, as I think they stopped actively supporting Armada years ago, about when they acquired Cavium. Anyway, it's still available from MarvellEmbeddedProcessors/odp-marvell. Marvell also had a thing called MUSDK, which is proprietary but may support more advanced features of the EIP-197(?). Try MarvellEmbeddedProcessors/musdk-marvell on GitHub. And just generally, if you want to have help using your Marvell platform, it seems like you should try to get that from Marvell directly (but perhaps you already tried that?). In any case, I'm not aware of any OS/driver/platform that will give you automatic protocol offload support without having to invest in the application software (either creating it, porting it or acquiring it from some 3rd party like 6WINDgate) > > > >> Thank you, > >> > >> > >> [1] > >> https://www.solid-run.com/embedded-networking/marvell-armada-family/clearfog-gt-8k/ > >> [2] https://images.solid-build.xyz/8040/Debian/ > >> [3] > >> https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/commit/inside- > >> secure/eip197_minifw/ifpp.bin?id=eefb5f7410150c00d0ab5c41c5d817ae9bf449b3 > >> > >> -- > >> Maciej Pijanowski > >> Embedded Systems Engineer > >> GPG: 9963C36AAC3B2B46 > >> https://3mdeb.com | @3mdeb_com > > Regards, > > Pascal van Leeuwen > > Silicon IP Architect Multi-Protocol Engines, Rambus Security > > Rambus ROTW Holding BV > > +31-73 6581953 > > > > Note: The Inside Secure/Verimatrix Silicon IP team was recently acquired by Rambus. > > Please be so kind to update your e-mail address book with my new e-mail address. > > > > > > ** This message and any attachments are for the sole use of the intended recipient(s). It may contain information that is confidential > and privileged. If you are not the intended recipient of this message, you are prohibited from printing, copying, forwarding or saving it. > Please delete the message and attachments and notify the sender immediately. ** > > > > Rambus Inc.<http://www.rambus.com> > > -- > Maciej Pijanowski > Embedded Systems Engineer > GPG: 9963C36AAC3B2B46 > https://3mdeb.com | @3mdeb_com Regards, Pascal van Leeuwen Silicon IP Architect Multi-Protocol Engines, Rambus Security Rambus ROTW Holding BV +31-73 6581953 Note: The Inside Secure/Verimatrix Silicon IP team was recently acquired by Rambus. Please be so kind to update your e-mail address book with my new e-mail address. ** This message and any attachments are for the sole use of the intended recipient(s). It may contain information that is confidential and privileged. If you are not the intended recipient of this message, you are prohibited from printing, copying, forwarding or saving it. Please delete the message and attachments and notify the sender immediately. ** Rambus Inc.<http://www.rambus.com>
