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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