drivers/crypto/cavium/zip/common.h

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  45
  46 #ifndef __COMMON_H__
  47 #define __COMMON_H__
  48
  49 #include <linux/delay.h>
  50 #include <linux/init.h>
  51 #include <linux/interrupt.h>
  52 #include <linux/io.h>
  53 #include <linux/kernel.h>
  54 #include <linux/module.h>
  55 #include <linux/pci.h>
  56 #include <linux/seq_file.h>
  57 #include <linux/string.h>
  58 #include <linux/types.h>
  59 #include <linux/version.h>
  60
  61 /* Device specific zlib function definitions */
  62 #include "zip_device.h"
  63
  64 /* ZIP device definitions */
  65 #include "zip_main.h"
  66
  67 /* ZIP memory allocation/deallocation related definitions */
  68 #include "zip_mem.h"
  69
  70 /* Device specific structure definitions */
  71 #include "zip_regs.h"
  72
  73 #define ZIP_ERROR    -1
  74
  75 #define ZIP_FLUSH_FINISH  4
  76
  77 #define RAW_FORMAT              0  /* for rawpipe */
  78 #define ZLIB_FORMAT             1  /* for zpipe */
  79 #define GZIP_FORMAT             2  /* for gzpipe */
  80 #define LZS_FORMAT              3  /* for lzspipe */
  81
  82 /* Max number of ZIP devices supported */
  83 #define MAX_ZIP_DEVICES         2
  84
  85 /* Configures the number of zip queues to be used */
  86 #define ZIP_NUM_QUEUES          2
  87
  88 #define DYNAMIC_STOP_EXCESS     1024
  89
  90 /* Maximum buffer sizes in direct mode */
  91 #define MAX_INPUT_BUFFER_SIZE   (64 * 1024)
  92 #define MAX_OUTPUT_BUFFER_SIZE  (64 * 1024)
  93
  94 /**
  95  * struct zip_operation - common data structure for comp and decomp operations
  96  * @input:               Next input byte is read from here
  97  * @output:              Next output byte written here
  98  * @ctx_addr:            Inflate context buffer address
  99  * @history:             Pointer to the history buffer
 100  * @input_len:           Number of bytes available at next_in
 101  * @input_total_len:     Total number of input bytes read
 102  * @output_len:          Remaining free space at next_out
 103  * @output_total_len:    Total number of bytes output so far
 104  * @csum:                Checksum value of the uncompressed data
 105  * @flush:               Flush flag
 106  * @format:              Format (depends on stream's wrap)
 107  * @speed:               Speed depends on stream's level
 108  * @ccode:               Compression code ( stream's strategy)
 109  * @lzs_flag:            Flag for LZS support
 110  * @begin_file:          Beginning of file indication for inflate
 111  * @history_len:         Size of the history data
 112  * @end_file:            Ending of the file indication for inflate
 113  * @compcode:            Completion status of the ZIP invocation
 114  * @bytes_read:          Input bytes read in current instruction
 115  * @bits_processed:      Total bits processed for entire file
 116  * @sizeofptr:           To distinguish between ILP32 and LP64
 117  * @sizeofzops:          Optional just for padding
 118  *
 119  * This structure is used to maintain the required meta data for the
 120  * comp and decomp operations.
 121  */
 122 struct zip_operation {
 123         u8    *input;
 124         u8    *output;
 125         u64   ctx_addr;
 126         u64   history;
 127
 128         u32   input_len;
 129         u32   input_total_len;
 130
 131         u32   output_len;
 132         u32   output_total_len;
 133
 134         u32   csum;
 135         u32   flush;
 136
 137         u32   format;
 138         u32   speed;
 139         u32   ccode;
 140         u32   lzs_flag;
 141
 142         u32   begin_file;
 143         u32   history_len;
 144
 145         u32   end_file;
 146         u32   compcode;
 147         u32   bytes_read;
 148         u32   bits_processed;
 149
 150         u32   sizeofptr;
 151         u32   sizeofzops;
 152 };
 153
 154 static inline int zip_poll_result(union zip_zres_s *result)
 155 {
 156         int retries = 1000;
 157
 158         while (!result->s.compcode) {
 159                 if (!--retries) {
 160                         pr_err("ZIP ERR: request timed out");
 161                         return -ETIMEDOUT;
 162                 }
 163                 udelay(10);
 164                 /*
 165                  * Force re-reading of compcode which is updated
 166                  * by the ZIP coprocessor.
 167                  */
 168                 rmb();
 169         }
 170         return 0;
 171 }
 172
 173 /* error messages */
 174 #define zip_err(fmt, args...) pr_err("ZIP ERR:%s():%d: " \
 175                               fmt "\n", __func__, __LINE__, ## args)
 176
 177 #ifdef MSG_ENABLE
 178 /* Enable all messages */
 179 #define zip_msg(fmt, args...) pr_info("ZIP_MSG:" fmt "\n", ## args)
 180 #else
 181 #define zip_msg(fmt, args...)
 182 #endif
 183
 184 #if defined(ZIP_DEBUG_ENABLE) && defined(MSG_ENABLE)
 185
 186 #ifdef DEBUG_LEVEL
 187
 188 #define FILE_NAME (strrchr(__FILE__, '/') ? strrchr(__FILE__, '/') + 1 : \
 189         strrchr(__FILE__, '\\') ? strrchr(__FILE__, '\\') + 1 : __FILE__)
 190
 191 #if DEBUG_LEVEL >= 4
 192
 193 #define zip_dbg(fmt, args...) pr_info("ZIP DBG: %s: %s() : %d: " \
 194                               fmt "\n", FILE_NAME, __func__, __LINE__, ## args)
 195
 196 #elif DEBUG_LEVEL >= 3
 197
 198 #define zip_dbg(fmt, args...) pr_info("ZIP DBG: %s: %s() : %d: " \
 199                               fmt "\n", FILE_NAME, __func__, __LINE__, ## args)
 200
 201 #elif DEBUG_LEVEL >= 2
 202
 203 #define zip_dbg(fmt, args...) pr_info("ZIP DBG: %s() : %d: " \
 204                               fmt "\n", __func__, __LINE__, ## args)
 205
 206 #else
 207
 208 #define zip_dbg(fmt, args...) pr_info("ZIP DBG:" fmt "\n", ## args)
 209
 210 #endif /* DEBUG LEVEL >=4 */
 211
 212 #else
 213
 214 #define zip_dbg(fmt, args...) pr_info("ZIP DBG:" fmt "\n", ## args)
 215
 216 #endif /* DEBUG_LEVEL */
 217 #else
 218
 219 #define zip_dbg(fmt, args...)
 220
 221 #endif /* ZIP_DEBUG_ENABLE && MSG_ENABLE*/
 222
 223 #endif