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1What: /sys/kernel/debug/nx-crypto/*2Date: March 20123KernelVersion: 3.44Contact: Kent Yoder <key@linux.vnet.ibm.com>5Description:6 7These debugfs interfaces are built by the nx-crypto driver, built in8arch/powerpc/crypto/nx.9 10Error Detection11===============12 13errors:14 A u32 providing a total count of errors since the driver was loaded. The15 only errors counted here are those returned from the hcall, H_COP_OP.16 17last_error:18 The most recent non-zero return code from the H_COP_OP hcall. -EBUSY is not19 recorded here (the hcall will retry until -EBUSY goes away).20 21last_error_pid:22 The process ID of the process who received the most recent error from the23 hcall.24 25Device Use26==========27 28aes_bytes:29 The total number of bytes encrypted using AES in any of the driver's30 supported modes.31 32aes_ops:33 The total number of AES operations submitted to the hardware.34 35sha256_bytes:36 The total number of bytes hashed by the hardware using SHA-256.37 38sha256_ops:39 The total number of SHA-256 operations submitted to the hardware.40 41sha512_bytes:42 The total number of bytes hashed by the hardware using SHA-512.43 44sha512_ops:45 The total number of SHA-512 operations submitted to the hardware.46