crypto: zip - Wire-up Compression / decompression HW offload
This contains changes for adding compression/decompression h/w offload functionality for both DEFLATE and LZS. 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
Herbert Xu
Родитель
640035a2dc
Коммит
f05845fcba
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@ -5,4 +5,7 @@
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obj-$(CONFIG_CRYPTO_DEV_CAVIUM_ZIP) += thunderx_zip.o
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thunderx_zip-y := zip_main.o \
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zip_device.o \
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zip_mem.o
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zip_crypto.o \
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zip_mem.o \
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zip_deflate.o \
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zip_inflate.o
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|
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@ -0,0 +1,313 @@
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/***********************license start************************************
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||||
* Copyright (c) 2003-2017 Cavium, Inc.
|
||||
* All rights reserved.
|
||||
*
|
||||
* License: one of 'Cavium License' or 'GNU General Public License Version 2'
|
||||
*
|
||||
* This file is provided under the terms of the Cavium License (see below)
|
||||
* or under the terms of GNU General Public License, Version 2, as
|
||||
* published by the Free Software Foundation. When using or redistributing
|
||||
* this file, you may do so under either license.
|
||||
*
|
||||
* Cavium License: Redistribution and use in source and binary forms, with
|
||||
* or without modification, are permitted provided that the following
|
||||
* conditions are met:
|
||||
*
|
||||
* * Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
*
|
||||
* * Redistributions in binary form must reproduce the above
|
||||
* copyright notice, this list of conditions and the following
|
||||
* disclaimer in the documentation and/or other materials provided
|
||||
* with the distribution.
|
||||
*
|
||||
* * Neither the name of Cavium Inc. nor the names of its contributors may be
|
||||
* used to endorse or promote products derived from this software without
|
||||
* specific prior written permission.
|
||||
*
|
||||
* This Software, including technical data, may be subject to U.S. export
|
||||
* control laws, including the U.S. Export Administration Act and its
|
||||
* associated regulations, and may be subject to export or import
|
||||
* regulations in other countries.
|
||||
*
|
||||
* TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS"
|
||||
* AND WITH ALL FAULTS AND CAVIUM INC. MAKES NO PROMISES, REPRESENTATIONS
|
||||
* OR WARRANTIES, EITHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, WITH
|
||||
* RESPECT TO THE SOFTWARE, INCLUDING ITS CONDITION, ITS CONFORMITY TO ANY
|
||||
* REPRESENTATION OR DESCRIPTION, OR THE EXISTENCE OF ANY LATENT OR PATENT
|
||||
* DEFECTS, AND CAVIUM SPECIFICALLY DISCLAIMS ALL IMPLIED (IF ANY)
|
||||
* WARRANTIES OF TITLE, MERCHANTABILITY, NONINFRINGEMENT, FITNESS FOR A
|
||||
* PARTICULAR PURPOSE, LACK OF VIRUSES, ACCURACY OR COMPLETENESS, QUIET
|
||||
* ENJOYMENT, QUIET POSSESSION OR CORRESPONDENCE TO DESCRIPTION. THE
|
||||
* ENTIRE RISK ARISING OUT OF USE OR PERFORMANCE OF THE SOFTWARE LIES
|
||||
* WITH YOU.
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||||
***********************license end**************************************/
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#include "zip_crypto.h"
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static void zip_static_init_zip_ops(struct zip_operation *zip_ops,
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int lzs_flag)
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{
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zip_ops->flush = ZIP_FLUSH_FINISH;
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/* equivalent to level 6 of opensource zlib */
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zip_ops->speed = 1;
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if (!lzs_flag) {
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zip_ops->ccode = 0; /* Auto Huffman */
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zip_ops->lzs_flag = 0;
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zip_ops->format = ZLIB_FORMAT;
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} else {
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zip_ops->ccode = 3; /* LZS Encoding */
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zip_ops->lzs_flag = 1;
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zip_ops->format = LZS_FORMAT;
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}
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zip_ops->begin_file = 1;
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zip_ops->history_len = 0;
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zip_ops->end_file = 1;
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zip_ops->compcode = 0;
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zip_ops->csum = 1; /* Adler checksum desired */
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}
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int zip_ctx_init(struct zip_kernel_ctx *zip_ctx, int lzs_flag)
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{
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struct zip_operation *comp_ctx = &zip_ctx->zip_comp;
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struct zip_operation *decomp_ctx = &zip_ctx->zip_decomp;
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zip_static_init_zip_ops(comp_ctx, lzs_flag);
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zip_static_init_zip_ops(decomp_ctx, lzs_flag);
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comp_ctx->input = zip_data_buf_alloc(MAX_INPUT_BUFFER_SIZE);
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if (!comp_ctx->input)
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return -ENOMEM;
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comp_ctx->output = zip_data_buf_alloc(MAX_OUTPUT_BUFFER_SIZE);
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if (!comp_ctx->output)
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goto err_comp_input;
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decomp_ctx->input = zip_data_buf_alloc(MAX_INPUT_BUFFER_SIZE);
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if (!decomp_ctx->input)
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goto err_comp_output;
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decomp_ctx->output = zip_data_buf_alloc(MAX_OUTPUT_BUFFER_SIZE);
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if (!decomp_ctx->output)
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goto err_decomp_input;
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return 0;
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err_decomp_input:
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zip_data_buf_free(decomp_ctx->input, MAX_INPUT_BUFFER_SIZE);
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err_comp_output:
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zip_data_buf_free(comp_ctx->output, MAX_OUTPUT_BUFFER_SIZE);
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err_comp_input:
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zip_data_buf_free(comp_ctx->input, MAX_INPUT_BUFFER_SIZE);
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return -ENOMEM;
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}
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void zip_ctx_exit(struct zip_kernel_ctx *zip_ctx)
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{
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struct zip_operation *comp_ctx = &zip_ctx->zip_comp;
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struct zip_operation *dec_ctx = &zip_ctx->zip_decomp;
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zip_data_buf_free(comp_ctx->input, MAX_INPUT_BUFFER_SIZE);
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zip_data_buf_free(comp_ctx->output, MAX_OUTPUT_BUFFER_SIZE);
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zip_data_buf_free(dec_ctx->input, MAX_INPUT_BUFFER_SIZE);
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zip_data_buf_free(dec_ctx->output, MAX_OUTPUT_BUFFER_SIZE);
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}
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int zip_compress(const u8 *src, unsigned int slen,
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u8 *dst, unsigned int *dlen,
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struct zip_kernel_ctx *zip_ctx)
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{
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struct zip_operation *zip_ops = NULL;
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struct zip_state zip_state;
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struct zip_device *zip = NULL;
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int ret;
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if (!zip_ctx || !src || !dst || !dlen)
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return -ENOMEM;
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zip = zip_get_device(zip_get_node_id());
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if (!zip)
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return -ENODEV;
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memset(&zip_state, 0, sizeof(struct zip_state));
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zip_ops = &zip_ctx->zip_comp;
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zip_ops->input_len = slen;
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zip_ops->output_len = *dlen;
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memcpy(zip_ops->input, src, slen);
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ret = zip_deflate(zip_ops, &zip_state, zip);
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if (!ret) {
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*dlen = zip_ops->output_len;
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memcpy(dst, zip_ops->output, *dlen);
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}
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return ret;
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}
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int zip_decompress(const u8 *src, unsigned int slen,
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u8 *dst, unsigned int *dlen,
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struct zip_kernel_ctx *zip_ctx)
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{
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struct zip_operation *zip_ops = NULL;
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struct zip_state zip_state;
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struct zip_device *zip = NULL;
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int ret;
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if (!zip_ctx || !src || !dst || !dlen)
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return -ENOMEM;
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zip = zip_get_device(zip_get_node_id());
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if (!zip)
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return -ENODEV;
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memset(&zip_state, 0, sizeof(struct zip_state));
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zip_ops = &zip_ctx->zip_decomp;
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memcpy(zip_ops->input, src, slen);
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/* Work around for a bug in zlib which needs an extra bytes sometimes */
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if (zip_ops->ccode != 3) /* Not LZS Encoding */
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zip_ops->input[slen++] = 0;
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zip_ops->input_len = slen;
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zip_ops->output_len = *dlen;
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ret = zip_inflate(zip_ops, &zip_state, zip);
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if (!ret) {
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*dlen = zip_ops->output_len;
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memcpy(dst, zip_ops->output, *dlen);
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}
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return ret;
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}
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/* Legacy Compress framework start */
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int zip_alloc_comp_ctx_deflate(struct crypto_tfm *tfm)
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{
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int ret;
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struct zip_kernel_ctx *zip_ctx = crypto_tfm_ctx(tfm);
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ret = zip_ctx_init(zip_ctx, 0);
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return ret;
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}
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int zip_alloc_comp_ctx_lzs(struct crypto_tfm *tfm)
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{
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int ret;
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struct zip_kernel_ctx *zip_ctx = crypto_tfm_ctx(tfm);
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ret = zip_ctx_init(zip_ctx, 1);
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return ret;
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}
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void zip_free_comp_ctx(struct crypto_tfm *tfm)
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{
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struct zip_kernel_ctx *zip_ctx = crypto_tfm_ctx(tfm);
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zip_ctx_exit(zip_ctx);
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}
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int zip_comp_compress(struct crypto_tfm *tfm,
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const u8 *src, unsigned int slen,
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u8 *dst, unsigned int *dlen)
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{
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int ret;
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struct zip_kernel_ctx *zip_ctx = crypto_tfm_ctx(tfm);
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ret = zip_compress(src, slen, dst, dlen, zip_ctx);
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return ret;
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}
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int zip_comp_decompress(struct crypto_tfm *tfm,
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const u8 *src, unsigned int slen,
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u8 *dst, unsigned int *dlen)
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{
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int ret;
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struct zip_kernel_ctx *zip_ctx = crypto_tfm_ctx(tfm);
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ret = zip_decompress(src, slen, dst, dlen, zip_ctx);
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return ret;
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} /* Legacy compress framework end */
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/* SCOMP framework start */
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void *zip_alloc_scomp_ctx_deflate(struct crypto_scomp *tfm)
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{
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int ret;
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struct zip_kernel_ctx *zip_ctx;
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zip_ctx = kzalloc(sizeof(*zip_ctx), GFP_KERNEL);
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if (!zip_ctx)
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return ERR_PTR(-ENOMEM);
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ret = zip_ctx_init(zip_ctx, 0);
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if (ret) {
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kzfree(zip_ctx);
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return ERR_PTR(ret);
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}
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return zip_ctx;
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}
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void *zip_alloc_scomp_ctx_lzs(struct crypto_scomp *tfm)
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{
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int ret;
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struct zip_kernel_ctx *zip_ctx;
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zip_ctx = kzalloc(sizeof(*zip_ctx), GFP_KERNEL);
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if (!zip_ctx)
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return ERR_PTR(-ENOMEM);
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ret = zip_ctx_init(zip_ctx, 1);
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if (ret) {
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kzfree(zip_ctx);
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return ERR_PTR(ret);
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}
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return zip_ctx;
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}
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void zip_free_scomp_ctx(struct crypto_scomp *tfm, void *ctx)
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{
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struct zip_kernel_ctx *zip_ctx = ctx;
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zip_ctx_exit(zip_ctx);
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kzfree(zip_ctx);
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}
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int zip_scomp_compress(struct crypto_scomp *tfm,
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const u8 *src, unsigned int slen,
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u8 *dst, unsigned int *dlen, void *ctx)
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{
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int ret;
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struct zip_kernel_ctx *zip_ctx = ctx;
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ret = zip_compress(src, slen, dst, dlen, zip_ctx);
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return ret;
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}
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int zip_scomp_decompress(struct crypto_scomp *tfm,
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const u8 *src, unsigned int slen,
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u8 *dst, unsigned int *dlen, void *ctx)
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{
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int ret;
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struct zip_kernel_ctx *zip_ctx = ctx;
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ret = zip_decompress(src, slen, dst, dlen, zip_ctx);
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return ret;
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} /* SCOMP framework end */
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@ -49,6 +49,8 @@
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#include <linux/crypto.h>
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#include <crypto/internal/scompress.h>
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#include "common.h"
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#include "zip_deflate.h"
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#include "zip_inflate.h"
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struct zip_kernel_ctx {
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struct zip_operation zip_comp;
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|
|
|
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|
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@ -0,0 +1,190 @@
|
|||
/***********************license start************************************
|
||||
* Copyright (c) 2003-2017 Cavium, Inc.
|
||||
* All rights reserved.
|
||||
*
|
||||
* License: one of 'Cavium License' or 'GNU General Public License Version 2'
|
||||
*
|
||||
* This file is provided under the terms of the Cavium License (see below)
|
||||
* or under the terms of GNU General Public License, Version 2, as
|
||||
* published by the Free Software Foundation. When using or redistributing
|
||||
* this file, you may do so under either license.
|
||||
*
|
||||
* Cavium License: Redistribution and use in source and binary forms, with
|
||||
* or without modification, are permitted provided that the following
|
||||
* conditions are met:
|
||||
*
|
||||
* * Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
*
|
||||
* * Redistributions in binary form must reproduce the above
|
||||
* copyright notice, this list of conditions and the following
|
||||
* disclaimer in the documentation and/or other materials provided
|
||||
* with the distribution.
|
||||
*
|
||||
* * Neither the name of Cavium Inc. nor the names of its contributors may be
|
||||
* used to endorse or promote products derived from this software without
|
||||
* specific prior written permission.
|
||||
*
|
||||
* This Software, including technical data, may be subject to U.S. export
|
||||
* control laws, including the U.S. Export Administration Act and its
|
||||
* associated regulations, and may be subject to export or import
|
||||
* regulations in other countries.
|
||||
*
|
||||
* TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS"
|
||||
* AND WITH ALL FAULTS AND CAVIUM INC. MAKES NO PROMISES, REPRESENTATIONS
|
||||
* OR WARRANTIES, EITHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, WITH
|
||||
* RESPECT TO THE SOFTWARE, INCLUDING ITS CONDITION, ITS CONFORMITY TO ANY
|
||||
* REPRESENTATION OR DESCRIPTION, OR THE EXISTENCE OF ANY LATENT OR PATENT
|
||||
* DEFECTS, AND CAVIUM SPECIFICALLY DISCLAIMS ALL IMPLIED (IF ANY)
|
||||
* WARRANTIES OF TITLE, MERCHANTABILITY, NONINFRINGEMENT, FITNESS FOR A
|
||||
* PARTICULAR PURPOSE, LACK OF VIRUSES, ACCURACY OR COMPLETENESS, QUIET
|
||||
* ENJOYMENT, QUIET POSSESSION OR CORRESPONDENCE TO DESCRIPTION. THE
|
||||
* ENTIRE RISK ARISING OUT OF USE OR PERFORMANCE OF THE SOFTWARE LIES
|
||||
* WITH YOU.
|
||||
***********************license end**************************************/
|
||||
|
||||
#include <linux/delay.h>
|
||||
#include <linux/sched.h>
|
||||
|
||||
#include "common.h"
|
||||
#include "zip_deflate.h"
|
||||
|
||||
/* Prepares the deflate zip command */
|
||||
static int prepare_zip_command(struct zip_operation *zip_ops,
|
||||
struct zip_state *s, union zip_inst_s *zip_cmd)
|
||||
{
|
||||
union zip_zres_s *result_ptr = &s->result;
|
||||
|
||||
memset(zip_cmd, 0, sizeof(s->zip_cmd));
|
||||
memset(result_ptr, 0, sizeof(s->result));
|
||||
|
||||
/* IWORD #0 */
|
||||
/* History gather */
|
||||
zip_cmd->s.hg = 0;
|
||||
/* compression enable = 1 for deflate */
|
||||
zip_cmd->s.ce = 1;
|
||||
/* sf (sync flush) */
|
||||
zip_cmd->s.sf = 1;
|
||||
/* ef (end of file) */
|
||||
if (zip_ops->flush == ZIP_FLUSH_FINISH) {
|
||||
zip_cmd->s.ef = 1;
|
||||
zip_cmd->s.sf = 0;
|
||||
}
|
||||
|
||||
zip_cmd->s.cc = zip_ops->ccode;
|
||||
/* ss (compression speed/storage) */
|
||||
zip_cmd->s.ss = zip_ops->speed;
|
||||
|
||||
/* IWORD #1 */
|
||||
/* adler checksum */
|
||||
zip_cmd->s.adlercrc32 = zip_ops->csum;
|
||||
zip_cmd->s.historylength = zip_ops->history_len;
|
||||
zip_cmd->s.dg = 0;
|
||||
|
||||
/* IWORD # 6 and 7 - compression input/history pointer */
|
||||
zip_cmd->s.inp_ptr_addr.s.addr = __pa(zip_ops->input);
|
||||
zip_cmd->s.inp_ptr_ctl.s.length = (zip_ops->input_len +
|
||||
zip_ops->history_len);
|
||||
zip_cmd->s.ds = 0;
|
||||
|
||||
/* IWORD # 8 and 9 - Output pointer */
|
||||
zip_cmd->s.out_ptr_addr.s.addr = __pa(zip_ops->output);
|
||||
zip_cmd->s.out_ptr_ctl.s.length = zip_ops->output_len;
|
||||
/* maximum number of output-stream bytes that can be written */
|
||||
zip_cmd->s.totaloutputlength = zip_ops->output_len;
|
||||
|
||||
/* IWORD # 10 and 11 - Result pointer */
|
||||
zip_cmd->s.res_ptr_addr.s.addr = __pa(result_ptr);
|
||||
/* Clearing completion code */
|
||||
result_ptr->s.compcode = 0;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* zip_deflate - API to offload deflate operation to hardware
|
||||
* @zip_ops: Pointer to zip operation structure
|
||||
* @s: Pointer to the structure representing zip state
|
||||
* @zip_dev: Pointer to zip device structure
|
||||
*
|
||||
* This function prepares the zip deflate command and submits it to the zip
|
||||
* engine for processing.
|
||||
*
|
||||
* Return: 0 if successful or error code
|
||||
*/
|
||||
int zip_deflate(struct zip_operation *zip_ops, struct zip_state *s,
|
||||
struct zip_device *zip_dev)
|
||||
{
|
||||
union zip_inst_s *zip_cmd = &s->zip_cmd;
|
||||
union zip_zres_s *result_ptr = &s->result;
|
||||
u32 queue;
|
||||
|
||||
/* Prepares zip command based on the input parameters */
|
||||
prepare_zip_command(zip_ops, s, zip_cmd);
|
||||
|
||||
/* Loads zip command into command queues and rings door bell */
|
||||
queue = zip_load_instr(zip_cmd, zip_dev);
|
||||
|
||||
while (!result_ptr->s.compcode)
|
||||
continue;
|
||||
|
||||
zip_ops->compcode = result_ptr->s.compcode;
|
||||
switch (zip_ops->compcode) {
|
||||
case ZIP_CMD_NOTDONE:
|
||||
zip_dbg("Zip instruction not yet completed");
|
||||
return ZIP_ERROR;
|
||||
|
||||
case ZIP_CMD_SUCCESS:
|
||||
zip_dbg("Zip instruction completed successfully");
|
||||
zip_update_cmd_bufs(zip_dev, queue);
|
||||
break;
|
||||
|
||||
case ZIP_CMD_DTRUNC:
|
||||
zip_dbg("Output Truncate error");
|
||||
/* Returning ZIP_ERROR to avoid copy to user */
|
||||
return ZIP_ERROR;
|
||||
|
||||
default:
|
||||
zip_err("Zip instruction failed. Code:%d", zip_ops->compcode);
|
||||
return ZIP_ERROR;
|
||||
}
|
||||
|
||||
/* Update the CRC depending on the format */
|
||||
switch (zip_ops->format) {
|
||||
case RAW_FORMAT:
|
||||
zip_dbg("RAW Format: %d ", zip_ops->format);
|
||||
/* Get checksum from engine, need to feed it again */
|
||||
zip_ops->csum = result_ptr->s.adler32;
|
||||
break;
|
||||
|
||||
case ZLIB_FORMAT:
|
||||
zip_dbg("ZLIB Format: %d ", zip_ops->format);
|
||||
zip_ops->csum = result_ptr->s.adler32;
|
||||
break;
|
||||
|
||||
case GZIP_FORMAT:
|
||||
zip_dbg("GZIP Format: %d ", zip_ops->format);
|
||||
zip_ops->csum = result_ptr->s.crc32;
|
||||
break;
|
||||
|
||||
case LZS_FORMAT:
|
||||
zip_dbg("LZS Format: %d ", zip_ops->format);
|
||||
break;
|
||||
|
||||
default:
|
||||
zip_err("Unknown Format:%d\n", zip_ops->format);
|
||||
}
|
||||
|
||||
/* Update output_len */
|
||||
if (zip_ops->output_len < result_ptr->s.totalbyteswritten) {
|
||||
/* Dynamic stop && strm->output_len < zipconstants[onfsize] */
|
||||
zip_err("output_len (%d) < total bytes written(%d)\n",
|
||||
zip_ops->output_len, result_ptr->s.totalbyteswritten);
|
||||
zip_ops->output_len = 0;
|
||||
|
||||
} else {
|
||||
zip_ops->output_len = result_ptr->s.totalbyteswritten;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
|
@ -0,0 +1,62 @@
|
|||
/***********************license start************************************
|
||||
* Copyright (c) 2003-2017 Cavium, Inc.
|
||||
* All rights reserved.
|
||||
*
|
||||
* License: one of 'Cavium License' or 'GNU General Public License Version 2'
|
||||
*
|
||||
* This file is provided under the terms of the Cavium License (see below)
|
||||
* or under the terms of GNU General Public License, Version 2, as
|
||||
* published by the Free Software Foundation. When using or redistributing
|
||||
* this file, you may do so under either license.
|
||||
*
|
||||
* Cavium License: Redistribution and use in source and binary forms, with
|
||||
* or without modification, are permitted provided that the following
|
||||
* conditions are met:
|
||||
*
|
||||
* * Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
*
|
||||
* * Redistributions in binary form must reproduce the above
|
||||
* copyright notice, this list of conditions and the following
|
||||
* disclaimer in the documentation and/or other materials provided
|
||||
* with the distribution.
|
||||
*
|
||||
* * Neither the name of Cavium Inc. nor the names of its contributors may be
|
||||
* used to endorse or promote products derived from this software without
|
||||
* specific prior written permission.
|
||||
*
|
||||
* This Software, including technical data, may be subject to U.S. export
|
||||
* control laws, including the U.S. Export Administration Act and its
|
||||
* associated regulations, and may be subject to export or import
|
||||
* regulations in other countries.
|
||||
*
|
||||
* TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS"
|
||||
* AND WITH ALL FAULTS AND CAVIUM INC. MAKES NO PROMISES, REPRESENTATIONS
|
||||
* OR WARRANTIES, EITHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, WITH
|
||||
* RESPECT TO THE SOFTWARE, INCLUDING ITS CONDITION, ITS CONFORMITY TO ANY
|
||||
* REPRESENTATION OR DESCRIPTION, OR THE EXISTENCE OF ANY LATENT OR PATENT
|
||||
* DEFECTS, AND CAVIUM SPECIFICALLY DISCLAIMS ALL IMPLIED (IF ANY)
|
||||
* WARRANTIES OF TITLE, MERCHANTABILITY, NONINFRINGEMENT, FITNESS FOR A
|
||||
* PARTICULAR PURPOSE, LACK OF VIRUSES, ACCURACY OR COMPLETENESS, QUIET
|
||||
* ENJOYMENT, QUIET POSSESSION OR CORRESPONDENCE TO DESCRIPTION. THE
|
||||
* ENTIRE RISK ARISING OUT OF USE OR PERFORMANCE OF THE SOFTWARE LIES
|
||||
* WITH YOU.
|
||||
***********************license end**************************************/
|
||||
|
||||
#ifndef __ZIP_DEFLATE_H__
|
||||
#define __ZIP_DEFLATE_H__
|
||||
|
||||
/**
|
||||
* zip_deflate - API to offload deflate operation to hardware
|
||||
* @zip_ops: Pointer to zip operation structure
|
||||
* @s: Pointer to the structure representing zip state
|
||||
* @zip_dev: Pointer to the structure representing zip device
|
||||
*
|
||||
* This function prepares the zip deflate command and submits it to the zip
|
||||
* engine by ringing the doorbell.
|
||||
*
|
||||
* Return: 0 if successful or error code
|
||||
*/
|
||||
int zip_deflate(struct zip_operation *zip_ops, struct zip_state *s,
|
||||
struct zip_device *zip_dev);
|
||||
#endif
|
||||
|
|
@ -44,6 +44,7 @@
|
|||
***********************license end**************************************/
|
||||
|
||||
#include "common.h"
|
||||
#include "zip_deflate.h"
|
||||
|
||||
/**
|
||||
* zip_cmd_queue_consumed - Calculates the space consumed in the command queue.
|
||||
|
|
|
|||
|
|
@ -0,0 +1,211 @@
|
|||
/***********************license start************************************
|
||||
* Copyright (c) 2003-2017 Cavium, Inc.
|
||||
* All rights reserved.
|
||||
*
|
||||
* License: one of 'Cavium License' or 'GNU General Public License Version 2'
|
||||
*
|
||||
* This file is provided under the terms of the Cavium License (see below)
|
||||
* or under the terms of GNU General Public License, Version 2, as
|
||||
* published by the Free Software Foundation. When using or redistributing
|
||||
* this file, you may do so under either license.
|
||||
*
|
||||
* Cavium License: Redistribution and use in source and binary forms, with
|
||||
* or without modification, are permitted provided that the following
|
||||
* conditions are met:
|
||||
*
|
||||
* * Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
*
|
||||
* * Redistributions in binary form must reproduce the above
|
||||
* copyright notice, this list of conditions and the following
|
||||
* disclaimer in the documentation and/or other materials provided
|
||||
* with the distribution.
|
||||
*
|
||||
* * Neither the name of Cavium Inc. nor the names of its contributors may be
|
||||
* used to endorse or promote products derived from this software without
|
||||
* specific prior written permission.
|
||||
*
|
||||
* This Software, including technical data, may be subject to U.S. export
|
||||
* control laws, including the U.S. Export Administration Act and its
|
||||
* associated regulations, and may be subject to export or import
|
||||
* regulations in other countries.
|
||||
*
|
||||
* TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS"
|
||||
* AND WITH ALL FAULTS AND CAVIUM INC. MAKES NO PROMISES, REPRESENTATIONS
|
||||
* OR WARRANTIES, EITHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, WITH
|
||||
* RESPECT TO THE SOFTWARE, INCLUDING ITS CONDITION, ITS CONFORMITY TO ANY
|
||||
* REPRESENTATION OR DESCRIPTION, OR THE EXISTENCE OF ANY LATENT OR PATENT
|
||||
* DEFECTS, AND CAVIUM SPECIFICALLY DISCLAIMS ALL IMPLIED (IF ANY)
|
||||
* WARRANTIES OF TITLE, MERCHANTABILITY, NONINFRINGEMENT, FITNESS FOR A
|
||||
* PARTICULAR PURPOSE, LACK OF VIRUSES, ACCURACY OR COMPLETENESS, QUIET
|
||||
* ENJOYMENT, QUIET POSSESSION OR CORRESPONDENCE TO DESCRIPTION. THE
|
||||
* ENTIRE RISK ARISING OUT OF USE OR PERFORMANCE OF THE SOFTWARE LIES
|
||||
* WITH YOU.
|
||||
***********************license end**************************************/
|
||||
|
||||
#include <linux/delay.h>
|
||||
#include <linux/sched.h>
|
||||
|
||||
#include "common.h"
|
||||
#include "zip_inflate.h"
|
||||
|
||||
static int prepare_inflate_zcmd(struct zip_operation *zip_ops,
|
||||
struct zip_state *s, union zip_inst_s *zip_cmd)
|
||||
{
|
||||
union zip_zres_s *result_ptr = &s->result;
|
||||
|
||||
memset(zip_cmd, 0, sizeof(s->zip_cmd));
|
||||
memset(result_ptr, 0, sizeof(s->result));
|
||||
|
||||
/* IWORD#0 */
|
||||
|
||||
/* Decompression History Gather list - no gather list */
|
||||
zip_cmd->s.hg = 0;
|
||||
/* For decompression, CE must be 0x0. */
|
||||
zip_cmd->s.ce = 0;
|
||||
/* For decompression, SS must be 0x0. */
|
||||
zip_cmd->s.ss = 0;
|
||||
/* For decompression, SF should always be set. */
|
||||
zip_cmd->s.sf = 1;
|
||||
|
||||
/* Begin File */
|
||||
if (zip_ops->begin_file == 0)
|
||||
zip_cmd->s.bf = 0;
|
||||
else
|
||||
zip_cmd->s.bf = 1;
|
||||
|
||||
zip_cmd->s.ef = 1;
|
||||
/* 0: for Deflate decompression, 3: for LZS decompression */
|
||||
zip_cmd->s.cc = zip_ops->ccode;
|
||||
|
||||
/* IWORD #1*/
|
||||
|
||||
/* adler checksum */
|
||||
zip_cmd->s.adlercrc32 = zip_ops->csum;
|
||||
|
||||
/*
|
||||
* HISTORYLENGTH must be 0x0 for any ZIP decompress operation.
|
||||
* History data is added to a decompression operation via IWORD3.
|
||||
*/
|
||||
zip_cmd->s.historylength = 0;
|
||||
zip_cmd->s.ds = 0;
|
||||
|
||||
/* IWORD # 8 and 9 - Output pointer */
|
||||
zip_cmd->s.out_ptr_addr.s.addr = __pa(zip_ops->output);
|
||||
zip_cmd->s.out_ptr_ctl.s.length = zip_ops->output_len;
|
||||
|
||||
/* Maximum number of output-stream bytes that can be written */
|
||||
zip_cmd->s.totaloutputlength = zip_ops->output_len;
|
||||
|
||||
zip_dbg("Data Direct Input case ");
|
||||
|
||||
/* IWORD # 6 and 7 - input pointer */
|
||||
zip_cmd->s.dg = 0;
|
||||
zip_cmd->s.inp_ptr_addr.s.addr = __pa((u8 *)zip_ops->input);
|
||||
zip_cmd->s.inp_ptr_ctl.s.length = zip_ops->input_len;
|
||||
|
||||
/* IWORD # 10 and 11 - Result pointer */
|
||||
zip_cmd->s.res_ptr_addr.s.addr = __pa(result_ptr);
|
||||
|
||||
/* Clearing completion code */
|
||||
result_ptr->s.compcode = 0;
|
||||
|
||||
/* Returning 0 for time being.*/
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* zip_inflate - API to offload inflate operation to hardware
|
||||
* @zip_ops: Pointer to zip operation structure
|
||||
* @s: Pointer to the structure representing zip state
|
||||
* @zip_dev: Pointer to zip device structure
|
||||
*
|
||||
* This function prepares the zip inflate command and submits it to the zip
|
||||
* engine for processing.
|
||||
*
|
||||
* Return: 0 if successful or error code
|
||||
*/
|
||||
int zip_inflate(struct zip_operation *zip_ops, struct zip_state *s,
|
||||
struct zip_device *zip_dev)
|
||||
{
|
||||
union zip_inst_s *zip_cmd = &s->zip_cmd;
|
||||
union zip_zres_s *result_ptr = &s->result;
|
||||
u32 queue;
|
||||
|
||||
/* Prepare inflate zip command */
|
||||
prepare_inflate_zcmd(zip_ops, s, zip_cmd);
|
||||
|
||||
/* Load inflate command to zip queue and ring the doorbell */
|
||||
queue = zip_load_instr(zip_cmd, zip_dev);
|
||||
|
||||
while (!result_ptr->s.compcode)
|
||||
continue;
|
||||
|
||||
zip_ops->compcode = result_ptr->s.compcode;
|
||||
switch (zip_ops->compcode) {
|
||||
case ZIP_CMD_NOTDONE:
|
||||
zip_dbg("Zip Instruction not yet completed\n");
|
||||
return ZIP_ERROR;
|
||||
|
||||
case ZIP_CMD_SUCCESS:
|
||||
zip_dbg("Zip Instruction completed successfully\n");
|
||||
break;
|
||||
|
||||
case ZIP_CMD_DYNAMIC_STOP:
|
||||
zip_dbg(" Dynamic stop Initiated\n");
|
||||
break;
|
||||
|
||||
default:
|
||||
zip_dbg("Instruction failed. Code = %d\n", zip_ops->compcode);
|
||||
zip_update_cmd_bufs(zip_dev, queue);
|
||||
return ZIP_ERROR;
|
||||
}
|
||||
|
||||
zip_update_cmd_bufs(zip_dev, queue);
|
||||
|
||||
if ((zip_ops->ccode == 3) && (zip_ops->flush == 4) &&
|
||||
(zip_ops->compcode != ZIP_CMD_DYNAMIC_STOP))
|
||||
result_ptr->s.ef = 1;
|
||||
|
||||
zip_ops->csum = result_ptr->s.adler32;
|
||||
|
||||
if (zip_ops->output_len < result_ptr->s.totalbyteswritten) {
|
||||
zip_err("output_len (%d) < total bytes written (%d)\n",
|
||||
zip_ops->output_len, result_ptr->s.totalbyteswritten);
|
||||
zip_ops->output_len = 0;
|
||||
} else {
|
||||
zip_ops->output_len = result_ptr->s.totalbyteswritten;
|
||||
}
|
||||
|
||||
zip_ops->bytes_read = result_ptr->s.totalbytesread;
|
||||
zip_ops->bits_processed = result_ptr->s.totalbitsprocessed;
|
||||
zip_ops->end_file = result_ptr->s.ef;
|
||||
if (zip_ops->end_file) {
|
||||
switch (zip_ops->format) {
|
||||
case RAW_FORMAT:
|
||||
zip_dbg("RAW Format: %d ", zip_ops->format);
|
||||
/* Get checksum from engine */
|
||||
zip_ops->csum = result_ptr->s.adler32;
|
||||
break;
|
||||
|
||||
case ZLIB_FORMAT:
|
||||
zip_dbg("ZLIB Format: %d ", zip_ops->format);
|
||||
zip_ops->csum = result_ptr->s.adler32;
|
||||
break;
|
||||
|
||||
case GZIP_FORMAT:
|
||||
zip_dbg("GZIP Format: %d ", zip_ops->format);
|
||||
zip_ops->csum = result_ptr->s.crc32;
|
||||
break;
|
||||
|
||||
case LZS_FORMAT:
|
||||
zip_dbg("LZS Format: %d ", zip_ops->format);
|
||||
break;
|
||||
|
||||
default:
|
||||
zip_err("Format error:%d\n", zip_ops->format);
|
||||
}
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
|
@ -0,0 +1,62 @@
|
|||
/***********************license start************************************
|
||||
* Copyright (c) 2003-2017 Cavium, Inc.
|
||||
* All rights reserved.
|
||||
*
|
||||
* License: one of 'Cavium License' or 'GNU General Public License Version 2'
|
||||
*
|
||||
* This file is provided under the terms of the Cavium License (see below)
|
||||
* or under the terms of GNU General Public License, Version 2, as
|
||||
* published by the Free Software Foundation. When using or redistributing
|
||||
* this file, you may do so under either license.
|
||||
*
|
||||
* Cavium License: Redistribution and use in source and binary forms, with
|
||||
* or without modification, are permitted provided that the following
|
||||
* conditions are met:
|
||||
*
|
||||
* * Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
*
|
||||
* * Redistributions in binary form must reproduce the above
|
||||
* copyright notice, this list of conditions and the following
|
||||
* disclaimer in the documentation and/or other materials provided
|
||||
* with the distribution.
|
||||
*
|
||||
* * Neither the name of Cavium Inc. nor the names of its contributors may be
|
||||
* used to endorse or promote products derived from this software without
|
||||
* specific prior written permission.
|
||||
*
|
||||
* This Software, including technical data, may be subject to U.S. export
|
||||
* control laws, including the U.S. Export Administration Act and its
|
||||
* associated regulations, and may be subject to export or import
|
||||
* regulations in other countries.
|
||||
*
|
||||
* TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS"
|
||||
* AND WITH ALL FAULTS AND CAVIUM INC. MAKES NO PROMISES, REPRESENTATIONS
|
||||
* OR WARRANTIES, EITHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, WITH
|
||||
* RESPECT TO THE SOFTWARE, INCLUDING ITS CONDITION, ITS CONFORMITY TO ANY
|
||||
* REPRESENTATION OR DESCRIPTION, OR THE EXISTENCE OF ANY LATENT OR PATENT
|
||||
* DEFECTS, AND CAVIUM SPECIFICALLY DISCLAIMS ALL IMPLIED (IF ANY)
|
||||
* WARRANTIES OF TITLE, MERCHANTABILITY, NONINFRINGEMENT, FITNESS FOR A
|
||||
* PARTICULAR PURPOSE, LACK OF VIRUSES, ACCURACY OR COMPLETENESS, QUIET
|
||||
* ENJOYMENT, QUIET POSSESSION OR CORRESPONDENCE TO DESCRIPTION. THE
|
||||
* ENTIRE RISK ARISING OUT OF USE OR PERFORMANCE OF THE SOFTWARE LIES
|
||||
* WITH YOU.
|
||||
***********************license end**************************************/
|
||||
|
||||
#ifndef __ZIP_INFLATE_H__
|
||||
#define __ZIP_INFLATE_H__
|
||||
|
||||
/**
|
||||
* zip_inflate - API to offload inflate operation to hardware
|
||||
* @zip_ops: Pointer to zip operation structure
|
||||
* @s: Pointer to the structure representing zip state
|
||||
* @zip_dev: Pointer to the structure representing zip device
|
||||
*
|
||||
* This function prepares the zip inflate command and submits it to the zip
|
||||
* engine for processing.
|
||||
*
|
||||
* Return: 0 if successful or error code
|
||||
*/
|
||||
int zip_inflate(struct zip_operation *zip_ops, struct zip_state *s,
|
||||
struct zip_device *zip_dev);
|
||||
#endif
|
||||
|
|
@ -339,63 +339,6 @@ static void zip_remove(struct pci_dev *pdev)
|
|||
zip_dev[zip->index] = NULL;
|
||||
}
|
||||
|
||||
/* Dummy Functions */
|
||||
int zip_alloc_comp_ctx_deflate(struct crypto_tfm *tfm)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
int zip_alloc_comp_ctx_lzs(struct crypto_tfm *tfm)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
void zip_free_comp_ctx(struct crypto_tfm *tfm)
|
||||
{
|
||||
}
|
||||
|
||||
int zip_comp_compress(struct crypto_tfm *tfm,
|
||||
const u8 *src, unsigned int slen,
|
||||
u8 *dst, unsigned int *dlen)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
int zip_comp_decompress(struct crypto_tfm *tfm,
|
||||
const u8 *src, unsigned int slen,
|
||||
u8 *dst, unsigned int *dlen)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
void *zip_alloc_scomp_ctx_deflate(struct crypto_scomp *tfm)
|
||||
{
|
||||
return NULL;
|
||||
}
|
||||
|
||||
void *zip_alloc_scomp_ctx_lzs(struct crypto_scomp *tfm)
|
||||
{
|
||||
return NULL;
|
||||
}
|
||||
|
||||
void zip_free_scomp_ctx(struct crypto_scomp *tfm, void *zip_ctx)
|
||||
{
|
||||
}
|
||||
|
||||
int zip_scomp_compress(struct crypto_scomp *tfm,
|
||||
const u8 *src, unsigned int slen,
|
||||
u8 *dst, unsigned int *dlen, void *ctx)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
int zip_scomp_decompress(struct crypto_scomp *tfm,
|
||||
const u8 *src, unsigned int slen,
|
||||
u8 *dst, unsigned int *dlen, void *ctx)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* PCI Sub-System Interface */
|
||||
static struct pci_driver zip_driver = {
|
||||
.name = DRV_NAME,
|
||||
|
|
|
|||
Загрузка…
Ссылка в новой задаче