1/* SPDX-License-Identifier: GPL-2.0-only */
 2/* Copyright(c) 2022 Intel Corporation */
 3#ifndef _QAT_COMPRESSION_H_
 4#define _QAT_COMPRESSION_H_
 5
 6#include <linux/list.h>
 7#include <linux/types.h>
 8#include "adf_accel_devices.h"
 9#include "qat_algs_send.h"
10
11#define QAT_COMP_MAX_SKID 4096
12
13struct qat_compression_instance {
14	struct adf_etr_ring_data *dc_tx;
15	struct adf_etr_ring_data *dc_rx;
16	struct adf_accel_dev *accel_dev;
17	struct list_head list;
18	unsigned long state;
19	int id;
20	atomic_t refctr;
21	struct qat_instance_backlog backlog;
22	struct adf_dc_data *dc_data;
23	void (*build_deflate_ctx)(void *ctx);
24};
25
26static inline bool adf_hw_dev_has_compression(struct adf_accel_dev *accel_dev)
27{
28	struct adf_hw_device_data *hw_device = accel_dev->hw_device;
29	u32 mask = ~hw_device->accel_capabilities_mask;
30
31	if (mask & ADF_ACCEL_CAPABILITIES_COMPRESSION)
32		return false;
33
34	return true;
35}
36
37#endif