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crypto: zip - Add ThunderX ZIP driver core
Add a driver for the ZIP engine found on Cavium ThunderX SOCs. The ZIP engine supports hardware accelerated compression and decompression. It includes 2 independent ZIP cores and supports: - DEFLATE compression and decompression (RFC 1951) - LZS compression and decompression (RFC 2395 and ANSI X3.241-1994) - ADLER32 and CRC32 checksums for ZLIB (RFC 1950) and GZIP (RFC 1952) The ZIP engine is presented as a PCI device. It supports DMA and scatter-gather. Signed-off-by: Mahipal Challa <Mahipal.Challa@cavium.com> Signed-off-by: Jan Glauber <jglauber@cavium.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Mahipal Challa
committed by
Herbert Xu
Herbert Xu
parent
27c539aeff
commit
640035a2dc
108
drivers/crypto/cavium/zip/zip_device.h
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108
drivers/crypto/cavium/zip/zip_device.h
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/***********************license start************************************
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* Copyright (c) 2003-2017 Cavium, Inc.
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* All rights reserved.
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*
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* License: one of 'Cavium License' or 'GNU General Public License Version 2'
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*
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* This file is provided under the terms of the Cavium License (see below)
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* or under the terms of GNU General Public License, Version 2, as
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* published by the Free Software Foundation. When using or redistributing
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* this file, you may do so under either license.
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*
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* Cavium License: Redistribution and use in source and binary forms, with
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* or without modification, are permitted provided that the following
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* conditions are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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*
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* * Neither the name of Cavium Inc. nor the names of its contributors may be
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* used to endorse or promote products derived from this software without
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* specific prior written permission.
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*
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* This Software, including technical data, may be subject to U.S. export
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* control laws, including the U.S. Export Administration Act and its
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* associated regulations, and may be subject to export or import
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* regulations in other countries.
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*
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* TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS"
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* AND WITH ALL FAULTS AND CAVIUM INC. MAKES NO PROMISES, REPRESENTATIONS
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* OR WARRANTIES, EITHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, WITH
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* RESPECT TO THE SOFTWARE, INCLUDING ITS CONDITION, ITS CONFORMITY TO ANY
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* REPRESENTATION OR DESCRIPTION, OR THE EXISTENCE OF ANY LATENT OR PATENT
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* DEFECTS, AND CAVIUM SPECIFICALLY DISCLAIMS ALL IMPLIED (IF ANY)
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* WARRANTIES OF TITLE, MERCHANTABILITY, NONINFRINGEMENT, FITNESS FOR A
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* PARTICULAR PURPOSE, LACK OF VIRUSES, ACCURACY OR COMPLETENESS, QUIET
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* ENJOYMENT, QUIET POSSESSION OR CORRESPONDENCE TO DESCRIPTION. THE
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* ENTIRE RISK ARISING OUT OF USE OR PERFORMANCE OF THE SOFTWARE LIES
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* WITH YOU.
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***********************license end**************************************/
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#ifndef __ZIP_DEVICE_H__
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#define __ZIP_DEVICE_H__
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#include <linux/types.h>
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#include "zip_main.h"
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struct sg_info {
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/*
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* Pointer to the input data when scatter_gather == 0 and
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* pointer to the input gather list buffer when scatter_gather == 1
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*/
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union zip_zptr_s *gather;
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/*
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* Pointer to the output data when scatter_gather == 0 and
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* pointer to the output scatter list buffer when scatter_gather == 1
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*/
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union zip_zptr_s *scatter;
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/*
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* Holds size of the output buffer pointed by scatter list
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* when scatter_gather == 1
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*/
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u64 scatter_buf_size;
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/* for gather data */
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u64 gather_enable;
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/* for scatter data */
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u64 scatter_enable;
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/* Number of gather list pointers for gather data */
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u32 gbuf_cnt;
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/* Number of scatter list pointers for scatter data */
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u32 sbuf_cnt;
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/* Buffers allocation state */
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u8 alloc_state;
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};
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/**
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* struct zip_state - Structure representing the required information related
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* to a command
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* @zip_cmd: Pointer to zip instruction structure
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* @result: Pointer to zip result structure
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* @ctx: Context pointer for inflate
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* @history: Decompression history pointer
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* @sginfo: Scatter-gather info structure
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*/
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struct zip_state {
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union zip_inst_s zip_cmd;
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union zip_zres_s result;
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union zip_zptr_s *ctx;
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union zip_zptr_s *history;
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struct sg_info sginfo;
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};
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#define ZIP_CONTEXT_SIZE 2048
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#define ZIP_INFLATE_HISTORY_SIZE 32768
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#define ZIP_DEFLATE_HISTORY_SIZE 32768
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#endif
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