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.
