crypto: qat - expose deflate through acomp api for QAT GEN2
[linux-2.6-microblaze.git] / drivers / crypto / qat / qat_common / qat_compression.h
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
13 struct 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
26 static 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