1/* SPDX-License-Identifier: GPL-2.0-only */
 2/* Copyright(c) 2014 - 2022 Intel Corporation */
 3#ifndef QAT_BL_H
 4#define QAT_BL_H
 5#include <linux/crypto.h>
 6#include <linux/scatterlist.h>
 7#include <linux/types.h>
 8
 9#define QAT_MAX_BUFF_DESC	4
10
11struct qat_alg_buf {
12	u32 len;
13	u32 resrvd;
14	u64 addr;
15} __packed;
16
17struct qat_alg_buf_list {
18	u64 resrvd;
19	u32 num_bufs;
20	u32 num_mapped_bufs;
21	struct qat_alg_buf buffers[];
22} __packed;
23
24struct qat_alg_fixed_buf_list {
25	struct qat_alg_buf_list sgl_hdr;
26	struct qat_alg_buf descriptors[QAT_MAX_BUFF_DESC];
27} __packed __aligned(64);
28
29struct qat_request_buffs {
30	struct qat_alg_buf_list *bl;
31	dma_addr_t blp;
32	struct qat_alg_buf_list *blout;
33	dma_addr_t bloutp;
34	size_t sz;
35	size_t sz_out;
36	bool sgl_src_valid;
37	bool sgl_dst_valid;
38	struct qat_alg_fixed_buf_list sgl_src;
39	struct qat_alg_fixed_buf_list sgl_dst;
40};
41
42struct qat_sgl_to_bufl_params {
43	dma_addr_t extra_dst_buff;
44	size_t sz_extra_dst_buff;
45	unsigned int sskip;
46	unsigned int dskip;
47};
48
49void qat_bl_free_bufl(struct adf_accel_dev *accel_dev,
50		      struct qat_request_buffs *buf);
51int qat_bl_sgl_to_bufl(struct adf_accel_dev *accel_dev,
52		       struct scatterlist *sgl,
53		       struct scatterlist *sglout,
54		       struct qat_request_buffs *buf,
55		       struct qat_sgl_to_bufl_params *params,
56		       gfp_t flags);
57
58static inline gfp_t qat_algs_alloc_flags(struct crypto_async_request *req)
59{
60	return req->flags & CRYPTO_TFM_REQ_MAY_SLEEP ? GFP_KERNEL : GFP_ATOMIC;
61}
62
63int qat_bl_realloc_map_new_dst(struct adf_accel_dev *accel_dev,
64			       struct scatterlist **newd,
65			       unsigned int dlen,
66			       struct qat_request_buffs *qat_bufs,
67			       gfp_t gfp);
68
69#endif