forked from Minki/linux
484a897ffa
We can configure sgl offset fields in ZIP sqe to let ZIP engine read/write
sgl data with skipped data. Hence no need to splite the sgl.
Fixes: 62c455ca85 (crypto: hisilicon - add HiSilicon ZIP accelerator support)
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Zhou Wang <wangzhou1@hisilicon.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
75 lines
1.5 KiB
C
75 lines
1.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/* Copyright (c) 2019 HiSilicon Limited. */
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#ifndef HISI_ZIP_H
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#define HISI_ZIP_H
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#undef pr_fmt
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#define pr_fmt(fmt) "hisi_zip: " fmt
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#include <linux/list.h>
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#include "../qm.h"
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/* hisi_zip_sqe dw3 */
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#define HZIP_BD_STATUS_M GENMASK(7, 0)
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/* hisi_zip_sqe dw7 */
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#define HZIP_IN_SGE_DATA_OFFSET_M GENMASK(23, 0)
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/* hisi_zip_sqe dw8 */
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#define HZIP_OUT_SGE_DATA_OFFSET_M GENMASK(23, 0)
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/* hisi_zip_sqe dw9 */
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#define HZIP_REQ_TYPE_M GENMASK(7, 0)
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#define HZIP_ALG_TYPE_ZLIB 0x02
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#define HZIP_ALG_TYPE_GZIP 0x03
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#define HZIP_BUF_TYPE_M GENMASK(11, 8)
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#define HZIP_PBUFFER 0x0
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#define HZIP_SGL 0x1
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enum hisi_zip_error_type {
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/* negative compression */
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HZIP_NC_ERR = 0x0d,
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};
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struct hisi_zip_ctrl;
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struct hisi_zip {
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struct hisi_qm qm;
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struct list_head list;
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struct hisi_zip_ctrl *ctrl;
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};
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struct hisi_zip_sqe {
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u32 consumed;
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u32 produced;
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u32 comp_data_length;
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u32 dw3;
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u32 input_data_length;
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u32 lba_l;
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u32 lba_h;
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u32 dw7;
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u32 dw8;
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u32 dw9;
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u32 dw10;
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u32 priv_info;
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u32 dw12;
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u32 tag;
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u32 dest_avail_out;
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u32 rsvd0;
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u32 comp_head_addr_l;
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u32 comp_head_addr_h;
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u32 source_addr_l;
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u32 source_addr_h;
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u32 dest_addr_l;
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u32 dest_addr_h;
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u32 stream_ctx_addr_l;
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u32 stream_ctx_addr_h;
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u32 cipher_key1_addr_l;
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u32 cipher_key1_addr_h;
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u32 cipher_key2_addr_l;
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u32 cipher_key2_addr_h;
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u32 rsvd1[4];
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};
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struct hisi_zip *find_zip_device(int node);
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int hisi_zip_register_to_crypto(void);
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void hisi_zip_unregister_from_crypto(void);
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#endif
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