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Diffstat (limited to '')
| -rw-r--r-- | Documentation/ABI/testing/debugfs-pfo-nx-crypto | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/debugfs-pfo-nx-crypto b/Documentation/ABI/testing/debugfs-pfo-nx-crypto new file mode 100644 index 000000000..f75a655c1 --- /dev/null +++ b/Documentation/ABI/testing/debugfs-pfo-nx-crypto @@ -0,0 +1,45 @@ +What: /sys/kernel/debug/nx-crypto/* +Date: March 2012 +KernelVersion: 3.4 +Contact: Kent Yoder <key@linux.vnet.ibm.com> +Description: + +These debugfs interfaces are built by the nx-crypto driver, built in +arch/powerpc/crypto/nx. + +Error Detection +=============== + +errors: + A u32 providing a total count of errors since the driver was loaded. The + only errors counted here are those returned from the hcall, H_COP_OP. + +last_error: + The most recent non-zero return code from the H_COP_OP hcall. -EBUSY is not + recorded here (the hcall will retry until -EBUSY goes away). + +last_error_pid: + The process ID of the process who received the most recent error from the + hcall. + +Device Use +========== + +aes_bytes: + The total number of bytes encrypted using AES in any of the driver's + supported modes. + +aes_ops: + The total number of AES operations submitted to the hardware. + +sha256_bytes: + The total number of bytes hashed by the hardware using SHA-256. + +sha256_ops: + The total number of SHA-256 operations submitted to the hardware. + +sha512_bytes: + The total number of bytes hashed by the hardware using SHA-512. + +sha512_ops: + The total number of SHA-512 operations submitted to the hardware. |