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