crypto: qat - pass the PF2VF responses back to the callers

Currently, any PF response to a VF request is fully parsed during the
interrupt handling. This way the individual response values are stored
into the accel_dev structure, preventing the caller to access and decode
the full response message itself.

Change this behavior, by letting the API return back the entire message
to the caller, in order to:
  - keep correlated code together, that is, the (building of the)
    request and the (decoding of the) response;
  - avoid polluting the accel_dev data structure with unnecessary and at
    times temporary values; only the entire message is stored in a
    temporary buffer.

Signed-off-by: Marco Chiappero <marco.chiappero@intel.com>
Reviewed-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
Signed-off-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/crypto/qat/qat_common/adf_accel_devices.h b/drivers/crypto/qat/qat_common/adf_accel_devices.h
index 35e62a73f9fa..b05b217df24c 100644
--- a/drivers/crypto/qat/qat_common/adf_accel_devices.h
+++ b/drivers/crypto/qat/qat_common/adf_accel_devices.h
@@ -271,8 +271,8 @@ struct adf_accel_dev {
 			char irq_name[ADF_MAX_MSIX_VECTOR_NAME];
 			struct tasklet_struct pf2vf_bh_tasklet;
 			struct mutex vf2pf_lock; /* protect CSR access */
-			struct completion iov_msg_completion;
-			u8 compatible;
+			struct completion msg_received;
+			u32 response; /* temp field holding pf2vf response */
 			u8 pf_version;
 		} vf;
 	};