| Kent Yoder | 175e0e2 | 2012-04-12 05:38:54 +0000 | [diff] [blame] | 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. |