1 What: /sys/kernel/debug/nx-crypto/* 2 Date: March 2012 3 KernelVersion: 3.4 4 Contact: Kent Yoder <key@linux.vnet.ibm.com> 5 Description: 6 7 These debugfs interfaces are built by the nx-crypto driver, built in 8 arch/powerpc/crypto/nx. 9 10 Error Detection 11 =============== 12 13 errors: 14 A u32 providing a total count of errors since the driver was loaded. The 15 only errors counted here are those returned from the hcall, H_COP_OP. 16 17 last_error: 18 The most recent non-zero return code from the H_COP_OP hcall. -EBUSY is not 19 recorded here (the hcall will retry until -EBUSY goes away). 20 21 last_error_pid: 22 The process ID of the process who received the most recent error from the 23 hcall. 24 25 Device Use 26 ========== 27 28 aes_bytes: 29 The total number of bytes encrypted using AES in any of the driver's 30 supported modes. 31 32 aes_ops: 33 The total number of AES operations submitted to the hardware. 34 35 sha256_bytes: 36 The total number of bytes hashed by the hardware using SHA-256. 37 38 sha256_ops: 39 The total number of SHA-256 operations submitted to the hardware. 40 41 sha512_bytes: 42 The total number of bytes hashed by the hardware using SHA-512. 43 44 sha512_ops: 45 The total number of SHA-512 operations submitted to the hardware.
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