70 lines
1.6 KiB
C
70 lines
1.6 KiB
C
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/* SPDX-License-Identifier: GPL-2.0-only */
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/* Copyright(c) 2014 - 2022 Intel Corporation */
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#ifndef QAT_BL_H
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#define QAT_BL_H
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#include <linux/crypto.h>
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#include <linux/scatterlist.h>
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#include <linux/types.h>
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#define QAT_MAX_BUFF_DESC 4
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struct qat_alg_buf {
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u32 len;
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u32 resrvd;
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u64 addr;
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} __packed;
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struct qat_alg_buf_list {
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u64 resrvd;
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u32 num_bufs;
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u32 num_mapped_bufs;
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struct qat_alg_buf buffers[];
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} __packed;
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struct qat_alg_fixed_buf_list {
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struct qat_alg_buf_list sgl_hdr;
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struct qat_alg_buf descriptors[QAT_MAX_BUFF_DESC];
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} __packed __aligned(64);
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struct qat_request_buffs {
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struct qat_alg_buf_list *bl;
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dma_addr_t blp;
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struct qat_alg_buf_list *blout;
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dma_addr_t bloutp;
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size_t sz;
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size_t sz_out;
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bool sgl_src_valid;
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bool sgl_dst_valid;
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struct qat_alg_fixed_buf_list sgl_src;
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struct qat_alg_fixed_buf_list sgl_dst;
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};
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struct qat_sgl_to_bufl_params {
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dma_addr_t extra_dst_buff;
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size_t sz_extra_dst_buff;
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unsigned int sskip;
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unsigned int dskip;
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};
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void qat_bl_free_bufl(struct adf_accel_dev *accel_dev,
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struct qat_request_buffs *buf);
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int qat_bl_sgl_to_bufl(struct adf_accel_dev *accel_dev,
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struct scatterlist *sgl,
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struct scatterlist *sglout,
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struct qat_request_buffs *buf,
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struct qat_sgl_to_bufl_params *params,
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gfp_t flags);
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static inline gfp_t qat_algs_alloc_flags(struct crypto_async_request *req)
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{
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return req->flags & CRYPTO_TFM_REQ_MAY_SLEEP ? GFP_KERNEL : GFP_ATOMIC;
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}
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int qat_bl_realloc_map_new_dst(struct adf_accel_dev *accel_dev,
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struct scatterlist **newd,
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unsigned int dlen,
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struct qat_request_buffs *qat_bufs,
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gfp_t gfp);
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#endif
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