drivers/crypto/cavium/zip/common.h - linux - Git at Google

 /***********************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
	/*********************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