drivers/crypto/intel/qat/qat_common/qat_crypto.h

Source file repositories/reference/linux-study-clean/drivers/crypto/intel/qat/qat_common/qat_crypto.h

File Facts

System
Linux kernel
Corpus path
drivers/crypto/intel/qat/qat_common/qat_crypto.h
Extension
.h
Size
1618 bytes
Lines
69
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

struct qat_crypto_instance {
	struct adf_etr_ring_data *sym_tx;
	struct adf_etr_ring_data *sym_rx;
	struct adf_etr_ring_data *pke_tx;
	struct adf_etr_ring_data *pke_rx;
	struct adf_accel_dev *accel_dev;
	struct list_head list;
	unsigned long state;
	int id;
	atomic_t refctr;
	struct qat_instance_backlog backlog;
};

struct qat_crypto_request;

struct qat_crypto_request {
	struct icp_qat_fw_la_bulk_req req;
	union {
		struct qat_alg_aead_ctx *aead_ctx;
		struct qat_alg_skcipher_ctx *skcipher_ctx;
	};
	union {
		struct aead_request *aead_req;
		struct skcipher_request *skcipher_req;
	};
	struct qat_request_buffs buf;
	void (*cb)(struct icp_qat_fw_la_resp *resp,
		   struct qat_crypto_request *req);
	union {
		struct {
			__be64 iv_hi;
			__be64 iv_lo;
		};
		u8 iv[AES_BLOCK_SIZE];
	};
	bool encryption;
	struct qat_alg_req alg_req;
};

static inline bool adf_hw_dev_has_crypto(struct adf_accel_dev *accel_dev)
{
	struct adf_hw_device_data *hw_device = accel_dev->hw_device;
	u32 mask = ~hw_device->accel_capabilities_mask;

	if (mask & ADF_ACCEL_CAPABILITIES_CRYPTO_SYMMETRIC)
		return false;
	if (mask & ADF_ACCEL_CAPABILITIES_CRYPTO_ASYMMETRIC)
		return false;
	if (mask & ADF_ACCEL_CAPABILITIES_AUTHENTICATION)
		return false;

	return true;
}

#endif

Annotation

Implementation Notes