1*4882a593SmuzhiyunWhat: /sys/kernel/debug/nx-crypto/* 2*4882a593SmuzhiyunDate: March 2012 3*4882a593SmuzhiyunKernelVersion: 3.4 4*4882a593SmuzhiyunContact: Kent Yoder <key@linux.vnet.ibm.com> 5*4882a593SmuzhiyunDescription: 6*4882a593Smuzhiyun 7*4882a593SmuzhiyunThese debugfs interfaces are built by the nx-crypto driver, built in 8*4882a593Smuzhiyunarch/powerpc/crypto/nx. 9*4882a593Smuzhiyun 10*4882a593SmuzhiyunError Detection 11*4882a593Smuzhiyun=============== 12*4882a593Smuzhiyun 13*4882a593Smuzhiyunerrors: 14*4882a593Smuzhiyun A u32 providing a total count of errors since the driver was loaded. The 15*4882a593Smuzhiyun only errors counted here are those returned from the hcall, H_COP_OP. 16*4882a593Smuzhiyun 17*4882a593Smuzhiyunlast_error: 18*4882a593Smuzhiyun The most recent non-zero return code from the H_COP_OP hcall. -EBUSY is not 19*4882a593Smuzhiyun recorded here (the hcall will retry until -EBUSY goes away). 20*4882a593Smuzhiyun 21*4882a593Smuzhiyunlast_error_pid: 22*4882a593Smuzhiyun The process ID of the process who received the most recent error from the 23*4882a593Smuzhiyun hcall. 24*4882a593Smuzhiyun 25*4882a593SmuzhiyunDevice Use 26*4882a593Smuzhiyun========== 27*4882a593Smuzhiyun 28*4882a593Smuzhiyunaes_bytes: 29*4882a593Smuzhiyun The total number of bytes encrypted using AES in any of the driver's 30*4882a593Smuzhiyun supported modes. 31*4882a593Smuzhiyun 32*4882a593Smuzhiyunaes_ops: 33*4882a593Smuzhiyun The total number of AES operations submitted to the hardware. 34*4882a593Smuzhiyun 35*4882a593Smuzhiyunsha256_bytes: 36*4882a593Smuzhiyun The total number of bytes hashed by the hardware using SHA-256. 37*4882a593Smuzhiyun 38*4882a593Smuzhiyunsha256_ops: 39*4882a593Smuzhiyun The total number of SHA-256 operations submitted to the hardware. 40*4882a593Smuzhiyun 41*4882a593Smuzhiyunsha512_bytes: 42*4882a593Smuzhiyun The total number of bytes hashed by the hardware using SHA-512. 43*4882a593Smuzhiyun 44*4882a593Smuzhiyunsha512_ops: 45*4882a593Smuzhiyun The total number of SHA-512 operations submitted to the hardware. 46