ocf-linux package
Do we need ocf-linux for something other than headers? The current recipe looks like all it's doing is to install the headers. However, the README file from the package talks about some kernel modules it provides and patching the kernel for embedded systems. I don't have any experience with this package, so, if somebody does, some additional info about how we use it (or planning to use it) would be greatly appreciated.
Thanks,
Radu
Quoted 6 lines · Radu Moisan
Do we need ocf-linux for something other than headers? The current recipe looks like all it's doing is to install the headers. However, the README file from the package talks about some kernel modules it provides and patching the kernel for embedded systems. I don't have any experience with this package, so, if somebody does, some additional info about how we use it (or planning to use it) would be greatly appreciated.
There are a series of kernel patches, I've been carrying them in various trees since 2.6.27. I do have a set of OCF patches that have been tested against the 3.4 kernel, so if there's interest, it's easy enough for me to make them available.
The test steps for OCF can be found within the kernel patches, which is basically
exercising /dev/cryptodev via a test application, and using it with openssl/ssh for
acceleration. That being said, it is coupled to the BSP such that you need appropriate
hardware, and kernel options enabled for any acceleration to happen.
I've also seen everything from SMP to module loading kernel traps in the past, so it
is definitely something that needs to be done in coordination with a use case, and
a particular board.
If we don't have a use case, or a board in mind, I'd suggest that it stay latent for
now, or I could enable the base plumbing in the kernel and it remain "buyer beware".
Cheers,
Bruce
Quoted 8 lines
Thanks,
Radu_______________________________________________
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"Thou shalt not follow the NULL pointer, for chaos and madness await thee at its end"
Quoted 26 lines · Bruce Ashfield
Quoted 6 lines · Radu Moisan
Do we need ocf-linux for something other than headers? The current recipe looks like all it's doing is to install the headers. However, the README file from the package talks about some kernel modules it provides and patching the kernel for embedded systems. I don't have any experience with this package, so, if somebody does, some additional info about how we use it (or planning to use it) would be greatly appreciated.
There are a series of kernel patches, I've been carrying them in various trees since 2.6.27. I do have a set of OCF patches that have been tested against the 3.4 kernel, so if there's interest, it's easy enough for me to make them available.
The test steps for OCF can be found within the kernel patches, which is basically
exercising/dev/cryptodevvia a test application, and using it with openssl/ssh for
acceleration. That being said, it is coupled to the BSP such that you need appropriate
hardware, and kernel options enabled for any acceleration to happen.I've also seen everything from SMP to module loading kernel traps in the past, so it
is definitely something that needs to be done in coordination with a use case, and
a particular board.
Quoted 4 lines
If we don't have a use case, or a board in mind, I'd suggest that it stay latent for
now, or I could enable the base plumbing in the kernel and it remain "buyer beware".
Thanks Bruce for this info. I agree, if there is not immediate necessity we should leave it aside for now.
radu