drivers/crypto/intel/qat/qat_common/adf_accel_engine.c

Source file repositories/reference/linux-study-clean/drivers/crypto/intel/qat/qat_common/adf_accel_engine.c

File Facts

System
Linux kernel
Corpus path
drivers/crypto/intel/qat/qat_common/adf_accel_engine.c
Extension
.c
Size
5786 bytes
Lines
220
Domain
Driver Families
Bucket
drivers/crypto
Inferred role
Driver Families: implementation source
Status
source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

if (!obj_name || !ae_mask) {
			dev_err(&GET_DEV(accel_dev), "Invalid UOF image\n");
			goto out_err;
		}

		if (qat_uclo_set_cfg_ae_mask(loader, ae_mask)) {
			dev_err(&GET_DEV(accel_dev),
				"Invalid mask for UOF image\n");
			goto out_err;
		}
		if (qat_uclo_map_obj(loader, fw_addr, fw_size, obj_name)) {
			dev_err(&GET_DEV(accel_dev),
				"Failed to map UOF firmware\n");
			goto out_err;
		}
		if (qat_uclo_wr_all_uimage(loader)) {
			dev_err(&GET_DEV(accel_dev),
				"Failed to load UOF firmware\n");
			goto out_err;
		}
		qat_uclo_del_obj(loader);
	}

	return 0;

out_err:
	adf_ae_fw_release(accel_dev);
	return -EFAULT;
}

int adf_ae_fw_load(struct adf_accel_dev *accel_dev)
{
	struct adf_fw_loader_data *loader_data = accel_dev->fw_loader;
	struct adf_hw_device_data *hw_device = accel_dev->hw_device;
	void *fw_addr, *mmp_addr;
	u32 fw_size, mmp_size;

	if (!hw_device->fw_name)
		return 0;

	if (request_firmware(&loader_data->mmp_fw, hw_device->fw_mmp_name,
			     &accel_dev->accel_pci_dev.pci_dev->dev)) {
		dev_err(&GET_DEV(accel_dev), "Failed to load MMP firmware %s\n",
			hw_device->fw_mmp_name);
		return -EFAULT;
	}
	if (request_firmware(&loader_data->uof_fw, hw_device->fw_name,
			     &accel_dev->accel_pci_dev.pci_dev->dev)) {
		dev_err(&GET_DEV(accel_dev), "Failed to load UOF firmware %s\n",
			hw_device->fw_name);
		goto out_err;
	}

	fw_size = loader_data->uof_fw->size;
	fw_addr = (void *)loader_data->uof_fw->data;
	mmp_size = loader_data->mmp_fw->size;
	mmp_addr = (void *)loader_data->mmp_fw->data;

	if (qat_uclo_wr_mimage(loader_data->fw_loader, mmp_addr, mmp_size)) {
		dev_err(&GET_DEV(accel_dev), "Failed to load MMP\n");
		goto out_err;
	}

	if (hw_device->uof_get_num_objs)
		return adf_ae_fw_load_images(accel_dev, fw_addr, fw_size);

	if (qat_uclo_map_obj(loader_data->fw_loader, fw_addr, fw_size, NULL)) {
		dev_err(&GET_DEV(accel_dev), "Failed to map FW\n");
		goto out_err;
	}
	if (qat_uclo_wr_all_uimage(loader_data->fw_loader)) {
		dev_err(&GET_DEV(accel_dev), "Failed to load UOF\n");
		goto out_err;
	}
	return 0;

out_err:
	adf_ae_fw_release(accel_dev);
	return -EFAULT;
}

void adf_ae_fw_release(struct adf_accel_dev *accel_dev)
{
	struct adf_fw_loader_data *loader_data = accel_dev->fw_loader;
	struct adf_hw_device_data *hw_device = accel_dev->hw_device;

	if (!hw_device->fw_name)
		return;

	qat_uclo_del_obj(loader_data->fw_loader);

Annotation

Implementation Notes