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- What: /sys/kernel/debug/nx-crypto/*
- Date: March 2012
- KernelVersion: 3.4
- Contact: Kent Yoder <key@linux.vnet.ibm.com>
- Description:
- These debugfs interfaces are built by the nx-crypto driver, built in
- arch/powerpc/crypto/nx.
- Error Detection
- ===============
- errors:
- - A u32 providing a total count of errors since the driver was loaded. The
- only errors counted here are those returned from the hcall, H_COP_OP.
- last_error:
- - The most recent non-zero return code from the H_COP_OP hcall. -EBUSY is not
- recorded here (the hcall will retry until -EBUSY goes away).
- last_error_pid:
- - The process ID of the process who received the most recent error from the
- hcall.
- Device Use
- ==========
- aes_bytes:
- - The total number of bytes encrypted using AES in any of the driver's
- supported modes.
- aes_ops:
- - The total number of AES operations submitted to the hardware.
- sha256_bytes:
- - The total number of bytes hashed by the hardware using SHA-256.
- sha256_ops:
- - The total number of SHA-256 operations submitted to the hardware.
- sha512_bytes:
- - The total number of bytes hashed by the hardware using SHA-512.
- sha512_ops:
- - The total number of SHA-512 operations submitted to the hardware.
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