Intel QAT Linux Kernel Cryptographic Framework Driver Error !

Hello again,

i'm now testing the Linux Kernel Cryptographic Framework Driver using the V 4.3.1.

Firstly, the driver doesn't include any documentation as described in the download section.

But i was able to build the kernel module.

Of course, before i changed the qat config to use the kernel CY device. (IPSEC0)

After loading the module, these error can be seen in the kernel ring buffer.

  556.201221] icp_netkey_shim_setkey: Re-initialising previous session

[  556.201243] [error] LacSymPerform_BufferParamCheck() - : Invalid API Param - Source and Dest buffer lengths need to be equal

[  556.201249] perform_sym_chaining: cpaCySymPerformOp failed. (status = (-4))

[  556.201253] alg: aead-ddst: encryption failed on test 1 for icp_qat_aes_cbc_sha1_hmac: ret=22

[  556.201289] Quick Assist icp_authenc_aes_cbc_hmac_sha1 loaded

[  556.201382] alg: No test for authenc(hmac(md5),cbc(aes)) (icp_qat_aes_cbc_md5_hmac)

[  556.201397] Quick Assist icp_authenc_aes_cbc_hmac_md5 loaded

[  556.202302] icp_netkey_shim_setkey: Re-initialising previous session

[  556.202385] icp_netkey_shim_setkey: Re-initialising previous session

[  556.202460] icp_netkey_shim_setkey: Re-initialising previous session

[  556.202535] icp_netkey_shim_setkey: Re-initialising previous session

[  556.202611] icp_netkey_shim_setkey: Re-initialising previous session

[  556.202687] icp_netkey_shim_setkey: Re-initialising previous session

[  556.202776] icp_netkey_shim_setkey: Re-initialising previous session

[  556.202797] [error] LacSymPerform_BufferParamCheck() - : Invalid API Param - Source and Dest buffer lengths need to be equal

[  556.202803] perform_sym_chaining: cpaCySymPerformOp failed. (status = (-4))

[  556.202807] alg: aead-ddst: encryption failed on test 1 for icp_qat_aes_cbc_sha256_hmac: ret=22

etc.

Now, the kernel module doesn't provide any parameters.

Please tell me, if this is an error, where i can set the source and dest buffer values.

icp_qa_al also doesn't provide any buffer specific parameters.

Please explain the error and what can be done to get rid of it.

Rgds.

Franz