crypto: cavium/zip - Remove driver (d462ae23) · Commits · git / linux-net

drivers/crypto/Kconfig

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Original line number	Diff line number	Diff line
		@@ -530,13 +530,6 @@ source "drivers/crypto/cavium/nitrox/Kconfig"
		source "drivers/crypto/marvell/Kconfig"
		source "drivers/crypto/intel/Kconfig"

		config CRYPTO_DEV_CAVIUM_ZIP
		tristate "Cavium ZIP driver"
		depends on PCI && 64BIT && (ARM64 \|\| COMPILE_TEST)
		help
		Select this option if you want to enable compression/decompression
		acceleration on Cavium's ARM based SoCs

		config CRYPTO_DEV_QCE
		tristate "Qualcomm crypto engine accelerator"
		depends on ARCH_QCOM \|\| COMPILE_TEST

drivers/crypto/cavium/Makefile

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Original line number	Diff line number	Diff line
		@@ -4,4 +4,3 @@
		#
		obj-$(CONFIG_CRYPTO_DEV_CPT) += cpt/
		obj-$(CONFIG_CRYPTO_DEV_NITROX) += nitrox/
		obj-$(CONFIG_CRYPTO_DEV_CAVIUM_ZIP) += zip/

drivers/crypto/cavium/zip/Makefile

deleted100644 → 0

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Original line number	Diff line number	Diff line
		# SPDX-License-Identifier: GPL-2.0
		#
		# Makefile for Cavium's ZIP Driver.
		#

		obj-$(CONFIG_CRYPTO_DEV_CAVIUM_ZIP) += thunderx_zip.o
		thunderx_zip-y := zip_main.o \
		zip_device.o \
		zip_crypto.o \
		zip_mem.o \
		zip_deflate.o \
		zip_inflate.o

drivers/crypto/cavium/zip/common.h

deleted100644 → 0

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Original line number	Diff line number	Diff line
		/*********************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 __COMMON_H__
		#define __COMMON_H__

		#include <linux/delay.h>
		#include <linux/init.h>
		#include <linux/interrupt.h>
		#include <linux/io.h>
		#include <linux/kernel.h>
		#include <linux/module.h>
		#include <linux/pci.h>
		#include <linux/seq_file.h>
		#include <linux/string.h>
		#include <linux/types.h>

		/* Device specific zlib function definitions */
		#include "zip_device.h"

		/* ZIP device definitions */
		#include "zip_main.h"

		/* ZIP memory allocation/deallocation related definitions */
		#include "zip_mem.h"

		/* Device specific structure definitions */
		#include "zip_regs.h"

		#define ZIP_ERROR -1

		#define ZIP_FLUSH_FINISH 4

		#define RAW_FORMAT 0 /* for rawpipe */
		#define ZLIB_FORMAT 1 /* for zpipe */
		#define GZIP_FORMAT 2 /* for gzpipe */
		#define LZS_FORMAT 3 /* for lzspipe */

		/* Max number of ZIP devices supported */
		#define MAX_ZIP_DEVICES 2

		/* Configures the number of zip queues to be used */
		#define ZIP_NUM_QUEUES 2

		#define DYNAMIC_STOP_EXCESS 1024

		/* Maximum buffer sizes in direct mode */
		#define MAX_INPUT_BUFFER_SIZE (64 * 1024)
		#define MAX_OUTPUT_BUFFER_SIZE (64 * 1024)

		/**
		* struct zip_operation - common data structure for comp and decomp operations
		* @input: Next input byte is read from here
		* @output: Next output byte written here
		* @ctx_addr: Inflate context buffer address
		* @history: Pointer to the history buffer
		* @input_len: Number of bytes available at next_in
		* @input_total_len: Total number of input bytes read
		* @output_len: Remaining free space at next_out
		* @output_total_len: Total number of bytes output so far
		* @csum: Checksum value of the uncompressed data
		* @flush: Flush flag
		* @format: Format (depends on stream's wrap)
		* @speed: Speed depends on stream's level
		* @ccode: Compression code ( stream's strategy)
		* @lzs_flag: Flag for LZS support
		* @begin_file: Beginning of file indication for inflate
		* @history_len: Size of the history data
		* @end_file: Ending of the file indication for inflate
		* @compcode: Completion status of the ZIP invocation
		* @bytes_read: Input bytes read in current instruction
		* @bits_processed: Total bits processed for entire file
		* @sizeofptr: To distinguish between ILP32 and LP64
		* @sizeofzops: Optional just for padding
		*
		* This structure is used to maintain the required meta data for the
		* comp and decomp operations.
		*/
		struct zip_operation {
		u8 *input;
		u8 *output;
		u64 ctx_addr;
		u64 history;

		u32 input_len;
		u32 input_total_len;

		u32 output_len;
		u32 output_total_len;

		u32 csum;
		u32 flush;

		u32 format;
		u32 speed;
		u32 ccode;
		u32 lzs_flag;

		u32 begin_file;
		u32 history_len;

		u32 end_file;
		u32 compcode;
		u32 bytes_read;
		u32 bits_processed;

		u32 sizeofptr;
		u32 sizeofzops;
		};

		static inline int zip_poll_result(union zip_zres_s *result)
		{
		int retries = 1000;

		while (!result->s.compcode) {
		if (!--retries) {
		pr_err("ZIP ERR: request timed out");
		return -ETIMEDOUT;
		}
		udelay(10);
		/*
		* Force re-reading of compcode which is updated
		* by the ZIP coprocessor.
		*/
		rmb();
		}
		return 0;
		}

		/* error messages */
		#define zip_err(fmt, args...) pr_err("ZIP ERR:%s():%d: " \
		fmt "\n", __func__, __LINE__, ## args)

		#ifdef MSG_ENABLE
		/* Enable all messages */
		#define zip_msg(fmt, args...) pr_info("ZIP_MSG:" fmt "\n", ## args)
		#else
		#define zip_msg(fmt, args...)
		#endif

		#if defined(ZIP_DEBUG_ENABLE) && defined(MSG_ENABLE)

		#ifdef DEBUG_LEVEL

		#define FILE_NAME (strrchr(__FILE__, '/') ? strrchr(__FILE__, '/') + 1 : \
		strrchr(__FILE__, '\\') ? strrchr(__FILE__, '\\') + 1 : __FILE__)

		#if DEBUG_LEVEL >= 4

		#define zip_dbg(fmt, args...) pr_info("ZIP DBG: %s: %s() : %d: " \
		fmt "\n", FILE_NAME, __func__, __LINE__, ## args)

		#elif DEBUG_LEVEL >= 3

		#define zip_dbg(fmt, args...) pr_info("ZIP DBG: %s: %s() : %d: " \
		fmt "\n", FILE_NAME, __func__, __LINE__, ## args)

		#elif DEBUG_LEVEL >= 2

		#define zip_dbg(fmt, args...) pr_info("ZIP DBG: %s() : %d: " \
		fmt "\n", __func__, __LINE__, ## args)

		#else

		#define zip_dbg(fmt, args...) pr_info("ZIP DBG:" fmt "\n", ## args)

		#endif /* DEBUG LEVEL >=4 */

		#else

		#define zip_dbg(fmt, args...) pr_info("ZIP DBG:" fmt "\n", ## args)

		#endif /* DEBUG_LEVEL */
		#else

		#define zip_dbg(fmt, args...)

		#endif /* ZIP_DEBUG_ENABLE && MSG_ENABLE*/

		#endif

drivers/crypto/cavium/zip/zip_crypto.c

deleted100644 → 0

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Original line number	Diff line number	Diff line
		/*********************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 "zip_crypto.h"

		static void zip_static_init_zip_ops(struct zip_operation *zip_ops,
		int lzs_flag)
		{
		zip_ops->flush = ZIP_FLUSH_FINISH;

		/* equivalent to level 6 of opensource zlib */
		zip_ops->speed = 1;

		if (!lzs_flag) {
		zip_ops->ccode = 0; /* Auto Huffman */
		zip_ops->lzs_flag = 0;
		zip_ops->format = ZLIB_FORMAT;
		} else {
		zip_ops->ccode = 3; /* LZS Encoding */
		zip_ops->lzs_flag = 1;
		zip_ops->format = LZS_FORMAT;
		}
		zip_ops->begin_file = 1;
		zip_ops->history_len = 0;
		zip_ops->end_file = 1;
		zip_ops->compcode = 0;
		zip_ops->csum = 1; /* Adler checksum desired */
		}

		static int zip_ctx_init(struct zip_kernel_ctx *zip_ctx, int lzs_flag)
		{
		struct zip_operation *comp_ctx = &zip_ctx->zip_comp;
		struct zip_operation *decomp_ctx = &zip_ctx->zip_decomp;

		zip_static_init_zip_ops(comp_ctx, lzs_flag);
		zip_static_init_zip_ops(decomp_ctx, lzs_flag);

		comp_ctx->input = zip_data_buf_alloc(MAX_INPUT_BUFFER_SIZE);
		if (!comp_ctx->input)
		return -ENOMEM;

		comp_ctx->output = zip_data_buf_alloc(MAX_OUTPUT_BUFFER_SIZE);
		if (!comp_ctx->output)
		goto err_comp_input;

		decomp_ctx->input = zip_data_buf_alloc(MAX_INPUT_BUFFER_SIZE);
		if (!decomp_ctx->input)
		goto err_comp_output;

		decomp_ctx->output = zip_data_buf_alloc(MAX_OUTPUT_BUFFER_SIZE);
		if (!decomp_ctx->output)
		goto err_decomp_input;

		return 0;

		err_decomp_input:
		zip_data_buf_free(decomp_ctx->input, MAX_INPUT_BUFFER_SIZE);

		err_comp_output:
		zip_data_buf_free(comp_ctx->output, MAX_OUTPUT_BUFFER_SIZE);

		err_comp_input:
		zip_data_buf_free(comp_ctx->input, MAX_INPUT_BUFFER_SIZE);

		return -ENOMEM;
		}

		static void zip_ctx_exit(struct zip_kernel_ctx *zip_ctx)
		{
		struct zip_operation *comp_ctx = &zip_ctx->zip_comp;
		struct zip_operation *dec_ctx = &zip_ctx->zip_decomp;

		zip_data_buf_free(comp_ctx->input, MAX_INPUT_BUFFER_SIZE);
		zip_data_buf_free(comp_ctx->output, MAX_OUTPUT_BUFFER_SIZE);

		zip_data_buf_free(dec_ctx->input, MAX_INPUT_BUFFER_SIZE);
		zip_data_buf_free(dec_ctx->output, MAX_OUTPUT_BUFFER_SIZE);
		}

		static int zip_compress(const u8 *src, unsigned int slen,
		u8 dst, unsigned int dlen,
		struct zip_kernel_ctx *zip_ctx)
		{
		struct zip_operation *zip_ops = NULL;
		struct zip_state *zip_state;
		struct zip_device *zip = NULL;
		int ret;

		if (!zip_ctx \|\| !src \|\| !dst \|\| !dlen)
		return -ENOMEM;

		zip = zip_get_device(zip_get_node_id());
		if (!zip)
		return -ENODEV;

		zip_state = kzalloc(sizeof(*zip_state), GFP_ATOMIC);
		if (!zip_state)
		return -ENOMEM;

		zip_ops = &zip_ctx->zip_comp;

		zip_ops->input_len = slen;
		zip_ops->output_len = *dlen;
		memcpy(zip_ops->input, src, slen);

		ret = zip_deflate(zip_ops, zip_state, zip);

		if (!ret) {
		*dlen = zip_ops->output_len;
		memcpy(dst, zip_ops->output, *dlen);
		}
		kfree(zip_state);
		return ret;
		}

		static int zip_decompress(const u8 *src, unsigned int slen,
		u8 dst, unsigned int dlen,
		struct zip_kernel_ctx *zip_ctx)
		{
		struct zip_operation *zip_ops = NULL;
		struct zip_state *zip_state;
		struct zip_device *zip = NULL;
		int ret;

		if (!zip_ctx \|\| !src \|\| !dst \|\| !dlen)
		return -ENOMEM;

		zip = zip_get_device(zip_get_node_id());
		if (!zip)
		return -ENODEV;

		zip_state = kzalloc(sizeof(*zip_state), GFP_ATOMIC);
		if (!zip_state)
		return -ENOMEM;

		zip_ops = &zip_ctx->zip_decomp;
		memcpy(zip_ops->input, src, slen);

		/* Work around for a bug in zlib which needs an extra bytes sometimes */
		if (zip_ops->ccode != 3) /* Not LZS Encoding */
		zip_ops->input[slen++] = 0;

		zip_ops->input_len = slen;
		zip_ops->output_len = *dlen;

		ret = zip_inflate(zip_ops, zip_state, zip);

		if (!ret) {
		*dlen = zip_ops->output_len;
		memcpy(dst, zip_ops->output, *dlen);
		}
		kfree(zip_state);
		return ret;
		}

		/* SCOMP framework start */
		void *zip_alloc_scomp_ctx_deflate(void)
		{
		int ret;
		struct zip_kernel_ctx *zip_ctx;

		zip_ctx = kzalloc(sizeof(*zip_ctx), GFP_KERNEL);
		if (!zip_ctx)
		return ERR_PTR(-ENOMEM);

		ret = zip_ctx_init(zip_ctx, 0);

		if (ret) {
		kfree_sensitive(zip_ctx);
		return ERR_PTR(ret);
		}

		return zip_ctx;
		}

		void *zip_alloc_scomp_ctx_lzs(void)
		{
		int ret;
		struct zip_kernel_ctx *zip_ctx;

		zip_ctx = kzalloc(sizeof(*zip_ctx), GFP_KERNEL);
		if (!zip_ctx)
		return ERR_PTR(-ENOMEM);

		ret = zip_ctx_init(zip_ctx, 1);

		if (ret) {
		kfree_sensitive(zip_ctx);
		return ERR_PTR(ret);
		}

		return zip_ctx;
		}

		void zip_free_scomp_ctx(void *ctx)
		{
		struct zip_kernel_ctx *zip_ctx = ctx;

		zip_ctx_exit(zip_ctx);
		kfree_sensitive(zip_ctx);
		}

		int zip_scomp_compress(struct crypto_scomp *tfm,
		const u8 *src, unsigned int slen,
		u8 dst, unsigned int dlen, void *ctx)
		{
		struct zip_kernel_ctx *zip_ctx = ctx;

		return zip_compress(src, slen, dst, dlen, zip_ctx);
		}

		int zip_scomp_decompress(struct crypto_scomp *tfm,
		const u8 *src, unsigned int slen,
		u8 dst, unsigned int dlen, void *ctx)
		{
		struct zip_kernel_ctx *zip_ctx = ctx;

		return zip_decompress(src, slen, dst, dlen, zip_ctx);
		} /* SCOMP framework end */