Messages in this thread |  | | Date | Fri, 20 Dec 2019 22:30:36 +0100 | From | Greg KH <> | Subject | Re: [PATCH v2] drivers: misc: Add support for nCipher HSM devices |
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On Fri, Dec 20, 2019 at 03:47:38PM +0000, Dave Kim wrote: > From: David Kim <david.kim@ncipher.com> > > This is the driver for nCipher’s Solo and Solo XC hardware security modules. > These modules implement a proprietary command set (the ’nCore API’) to > perform cryptographic operations - key generation, signature, and so on. HSM > commands and their replies are passed in a serialised binary format over the > PCIe bus via a shared memory region. Multiple commands may be in-flight at > any one time - command processing is multi-threaded and asynchronous. A write > operation may, therefore, deliver multiple commands, and multiple replies may > be retrieved in one read operation.
If this is "just" a crypto accelerator, why isn't this driver using the existing in-kernel hardware crypto api? What is lacking from it that you need here?
thanks,
greg k-h
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