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Diffstat (limited to 'drivers/crypto/cavium/zip/common.h')
| -rw-r--r-- | drivers/crypto/cavium/zip/common.h | 222 |
1 files changed, 222 insertions, 0 deletions
diff --git a/drivers/crypto/cavium/zip/common.h b/drivers/crypto/cavium/zip/common.h new file mode 100644 index 0000000000..54f6fb0541 --- /dev/null +++ b/drivers/crypto/cavium/zip/common.h @@ -0,0 +1,222 @@ +/***********************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 |