crypto: qat - refactor AE start

Change the API and the behaviour of the qat_hal_start() function.
With this change, the function starts under the hood all acceleration
engines (AEs) and there is no longer need to call it for each engine.
Signed-off-by: Jack Xu <jack.xu@intel.com>
Co-developed-by: Wojciech Ziemba <wojciech.ziemba@intel.com>
Signed-off-by: Wojciech Ziemba <wojciech.ziemba@intel.com>
Reviewed-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

drivers/crypto/qat/qat_common/adf_accel_engine.c

@@ -74,17 +74,12 @@ int adf_ae_start(struct adf_accel_dev *accel_dev)
 {
 	struct adf_fw_loader_data *loader_data = accel_dev->fw_loader;
 	struct adf_hw_device_data *hw_data = accel_dev->hw_device;
-	u32 ae_ctr, ae, max_aes = GET_MAX_ACCELENGINES(accel_dev);
+	u32 ae_ctr;
 
 	if (!hw_data->fw_name)
 		return 0;
 
-	for (ae = 0, ae_ctr = 0; ae < max_aes; ae++) {
-		if (hw_data->ae_mask & (1 << ae)) {
-			qat_hal_start(loader_data->fw_loader, ae, 0xFF);
-			ae_ctr++;
-		}
-	}
+	ae_ctr = qat_hal_start(loader_data->fw_loader);
 	dev_info(&GET_DEV(accel_dev),
 		 "qat_dev%d started %d acceleration engines\n",
 		 accel_dev->accel_id, ae_ctr);

drivers/crypto/qat/qat_common/adf_common_drv.h

@@ -133,8 +133,7 @@ void adf_vf_isr_resource_free(struct adf_accel_dev *accel_dev);
 
 int qat_hal_init(struct adf_accel_dev *accel_dev);
 void qat_hal_deinit(struct icp_qat_fw_loader_handle *handle);
-void qat_hal_start(struct icp_qat_fw_loader_handle *handle, unsigned char ae,
-		   unsigned int ctx_mask);
+int qat_hal_start(struct icp_qat_fw_loader_handle *handle);
 void qat_hal_stop(struct icp_qat_fw_loader_handle *handle, unsigned char ae,
 		  unsigned int ctx_mask);
 void qat_hal_reset(struct icp_qat_fw_loader_handle *handle);

drivers/crypto/qat/qat_common/qat_hal.c

@@ -742,26 +742,32 @@ void qat_hal_deinit(struct icp_qat_fw_loader_handle *handle)
 	kfree(handle);
 }
 
-void qat_hal_start(struct icp_qat_fw_loader_handle *handle, unsigned char ae,
-		   unsigned int ctx_mask)
+int qat_hal_start(struct icp_qat_fw_loader_handle *handle)
 {
+	unsigned long ae_mask = handle->hal_handle->ae_mask;
+	unsigned int fcu_sts;
+	unsigned char ae;
+	u32 ae_ctr = 0;
 	int retry = 0;
-	unsigned int fcu_sts = 0;
 
 	if (handle->fw_auth) {
+		ae_ctr = hweight32(ae_mask);
 		SET_CAP_CSR(handle, FCU_CONTROL, FCU_CTRL_CMD_START);
 		do {
 			msleep(FW_AUTH_WAIT_PERIOD);
 			fcu_sts = GET_CAP_CSR(handle, FCU_STATUS);
 			if (((fcu_sts >> FCU_STS_DONE_POS) & 0x1))
-				return;
+				return ae_ctr;
 		} while (retry++ < FW_AUTH_MAX_RETRY);
-		pr_err("QAT: start error (AE 0x%x FCU_STS = 0x%x)\n", ae,
-		       fcu_sts);
+		pr_err("QAT: start error (FCU_STS = 0x%x)\n", fcu_sts);
+		return 0;
 	} else {
-		qat_hal_put_wakeup_event(handle, ae, (~ctx_mask) &
-				 ICP_QAT_UCLO_AE_ALL_CTX, 0x10000);
-		qat_hal_enable_ctx(handle, ae, ctx_mask);
+		for_each_set_bit(ae, &ae_mask, handle->hal_handle->ae_max_num) {
+			qat_hal_put_wakeup_event(handle, ae, 0, 0x10000);
+			qat_hal_enable_ctx(handle, ae, ICP_QAT_UCLO_AE_ALL_CTX);
+			ae_ctr++;
+		}
+		return ae_ctr;
 	}
 }