target/linux/generic-2.6/files/crypto/ocf/kirkwood/cesa/mvCesa.h

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  63 *******************************************************************************/
  64
  65 /*******************************************************************************
  66 * mvCesa.h - Header File for Cryptographic Engines and Security Accelerator
  67 *
  68 * DESCRIPTION:
  69 *       This header file contains macros typedefs and function declaration for
  70 *       the Marvell Cryptographic Engines and Security Accelerator.
  71 *
  72 *******************************************************************************/
  73
  74 #ifndef __mvCesa_h__
  75 #define __mvCesa_h__
  76
  77 #include "mvOs.h"
  78 #include "mvCommon.h"
  79 #include "mvDebug.h"
  80
  81 #include "ctrlEnv/mvCtrlEnvSpec.h"
  82
  83 #include "cesa/mvMD5.h"
  84 #include "cesa/mvSHA1.h"
  85
  86 #include "cesa/mvCesa.h"
  87 #include "cesa/AES/mvAes.h"
  88 #include "mvSysHwConfig.h"
  89
  90 #ifdef MV_INCLUDE_IDMA
  91 #include "idma/mvIdma.h"
  92 #include "idma/mvIdmaRegs.h"
  93 #else
  94 /* Redefine MV_DMA_DESC structure */
  95 typedef struct _mvDmaDesc
  96 {
  97     MV_U32      byteCnt;        /* The total number of bytes to transfer        */
  98     MV_U32      phySrcAdd;          /* The physical source address                  */
  99     MV_U32      phyDestAdd;     /* The physical destination address             */
 100     MV_U32      phyNextDescPtr; /* If we are using chain mode DMA transfer,     */
 101                                             /* then this pointer should point to the        */
 102                             /* physical address of the next descriptor,     */
 103                             /* otherwise it should be NULL.                 */
 104 }MV_DMA_DESC;
 105 #endif /* MV_INCLUDE_IDMA */
 106
 107 #include "cesa/mvCesaRegs.h"
 108
 109 #define MV_CESA_AUTH_BLOCK_SIZE         64 /* bytes */
 110
 111 #define MV_CESA_MD5_DIGEST_SIZE         16 /* bytes */
 112 #define MV_CESA_SHA1_DIGEST_SIZE        20 /* bytes */
 113
 114 #define MV_CESA_MAX_DIGEST_SIZE         MV_CESA_SHA1_DIGEST_SIZE
 115
 116 #define MV_CESA_DES_KEY_LENGTH          8   /* bytes = 64 bits */
 117 #define MV_CESA_3DES_KEY_LENGTH         24  /* bytes = 192 bits */
 118 #define MV_CESA_AES_128_KEY_LENGTH      16  /* bytes = 128 bits */
 119 #define MV_CESA_AES_192_KEY_LENGTH      24  /* bytes = 192 bits */
 120 #define MV_CESA_AES_256_KEY_LENGTH      32  /* bytes = 256 bits */
 121
 122 #define MV_CESA_MAX_CRYPTO_KEY_LENGTH   MV_CESA_AES_256_KEY_LENGTH
 123
 124 #define MV_CESA_DES_BLOCK_SIZE          8 /* bytes = 64 bits */
 125 #define MV_CESA_3DES_BLOCK_SIZE         8 /* bytes = 64 bits */
 126
 127 #define MV_CESA_AES_BLOCK_SIZE          16 /* bytes = 128 bits */
 128
 129 #define MV_CESA_MAX_IV_LENGTH           MV_CESA_AES_BLOCK_SIZE
 130
 131 #define MV_CESA_MAX_MAC_KEY_LENGTH      64 /* bytes */
 132
 133 typedef struct
 134 {
 135         MV_U8               cryptoKey[MV_CESA_MAX_CRYPTO_KEY_LENGTH];
 136         MV_U8               macKey[MV_CESA_MAX_MAC_KEY_LENGTH];
 137         MV_CESA_OPERATION   operation;
 138         MV_CESA_DIRECTION   direction;
 139         MV_CESA_CRYPTO_ALG  cryptoAlgorithm;
 140         MV_CESA_CRYPTO_MODE cryptoMode;
 141         MV_U8               cryptoKeyLength;
 142         MV_CESA_MAC_MODE    macMode;
 143         MV_U8               macKeyLength;
 144         MV_U8               digestSize;
 145
 146 } MV_CESA_OPEN_SESSION;
 147
 148 typedef struct
 149 {
 150     MV_BUF_INFO *pFrags;
 151         MV_U16      numFrags;
 152     MV_U16      mbufSize;
 153
 154 } MV_CESA_MBUF;
 155
 156 typedef struct
 157 {
 158     void*       pReqPrv; /* instead of reqId */
 159     MV_U32      retCode;
 160     MV_16   sessionId;
 161
 162 } MV_CESA_RESULT;
 163
 164 typedef void    (*MV_CESA_CALLBACK) (MV_CESA_RESULT* pResult);
 165
 166
 167 typedef struct
 168 {
 169     void*               pReqPrv;    /* instead of reqId */
 170     MV_CESA_MBUF*       pSrc;
 171     MV_CESA_MBUF*       pDst;
 172     MV_CESA_CALLBACK*   pFuncCB;
 173     MV_16               sessionId;
 174     MV_U16              ivFromUser;
 175     MV_U16              ivOffset;
 176     MV_U16              cryptoOffset;
 177     MV_U16              cryptoLength;
 178     MV_U16              digestOffset;
 179     MV_U16              macOffset;
 180     MV_U16              macLength;
 181     MV_BOOL             skipFlush;
 182 } MV_CESA_COMMAND;
 183
 184
 185
 186 MV_STATUS   mvCesaHalInit (int numOfSession, int queueDepth, char* pSramBase, MV_U32 cryptEngBase, void *osHandle);
 187 MV_STATUS   mvCesaFinish (void);
 188 MV_STATUS   mvCesaSessionOpen(MV_CESA_OPEN_SESSION *pSession, short* pSid);
 189 MV_STATUS   mvCesaSessionClose(short sid);
 190 MV_STATUS   mvCesaCryptoIvSet(MV_U8* pIV, int ivSize);
 191
 192 MV_STATUS   mvCesaAction (MV_CESA_COMMAND* pCmd);
 193
 194 MV_U32      mvCesaInProcessGet(void);
 195 MV_STATUS   mvCesaReadyDispatch(void);
 196 MV_STATUS   mvCesaReadyGet(MV_CESA_RESULT* pResult);
 197 MV_BOOL     mvCesaIsReady(void);
 198
 199 int             mvCesaMbufOffset(MV_CESA_MBUF* pMbuf, int offset, int* pBufOffset);
 200 MV_STATUS   mvCesaCopyFromMbuf(MV_U8* pDst, MV_CESA_MBUF* pSrcMbuf,
 201                                int offset, int size);
 202 MV_STATUS   mvCesaCopyToMbuf(MV_U8* pSrc, MV_CESA_MBUF* pDstMbuf,
 203                                int offset, int size);
 204 MV_STATUS   mvCesaMbufCopy(MV_CESA_MBUF* pMbufDst, int dstMbufOffset,
 205                            MV_CESA_MBUF* pMbufSrc, int srcMbufOffset, int size);
 206
 207 /********** Debug functions ********/
 208
 209 void        mvCesaDebugMbuf(const char* str, MV_CESA_MBUF *pMbuf, int offset, int size);
 210 void        mvCesaDebugSA(short sid, int mode);
 211 void        mvCesaDebugStats(void);
 212 void        mvCesaDebugStatsClear(void);
 213 void        mvCesaDebugRegs(void);
 214 void        mvCesaDebugStatus(void);
 215 void        mvCesaDebugQueue(int mode);
 216 void        mvCesaDebugSram(int mode);
 217 void        mvCesaDebugSAD(int mode);
 218
 219
 220 /********  CESA Private definitions ********/
 221 #if (MV_CESA_VERSION >= 2)
 222 #if (MV_CACHE_COHERENCY  == MV_CACHE_COHER_SW)
 223 #define MV_CESA_TDMA_CTRL_VALUE       MV_CESA_TDMA_DST_BURST_MASK(MV_CESA_TDMA_BURST_128B) \
 224                                     | MV_CESA_TDMA_SRC_BURST_MASK(MV_CESA_TDMA_BURST_128B) \
 225                                     | MV_CESA_TDMA_OUTSTAND_READ_EN_MASK                   \
 226                                     | MV_CESA_TDMA_NO_BYTE_SWAP_MASK                       \
 227                                     | MV_CESA_TDMA_ENABLE_MASK
 228 #else
 229 #define MV_CESA_TDMA_CTRL_VALUE       MV_CESA_TDMA_DST_BURST_MASK(MV_CESA_TDMA_BURST_32B)  \
 230                                     | MV_CESA_TDMA_SRC_BURST_MASK(MV_CESA_TDMA_BURST_128B) \
 231                                     /*| MV_CESA_TDMA_OUTSTAND_READ_EN_MASK                   */\
 232                                     | MV_CESA_TDMA_ENABLE_MASK
 233
 234 #endif
 235 #else
 236 #define MV_CESA_IDMA_CTRL_LOW_VALUE   ICCLR_DST_BURST_LIM_128BYTE   \
 237                                     | ICCLR_SRC_BURST_LIM_128BYTE   \
 238                                     | ICCLR_INT_MODE_MASK           \
 239                                     | ICCLR_BLOCK_MODE              \
 240                                     | ICCLR_CHAN_ENABLE             \
 241                                     | ICCLR_DESC_MODE_16M
 242 #endif /* MV_CESA_VERSION >= 2 */
 243
 244 #define MV_CESA_MAX_PKT_SIZE        (64 * 1024)
 245 #define MV_CESA_MAX_MBUF_FRAGS      20
 246
 247 #define MV_CESA_MAX_REQ_FRAGS       ( (MV_CESA_MAX_PKT_SIZE / MV_CESA_MAX_BUF_SIZE) + 1)
 248
 249 #define MV_CESA_MAX_DMA_DESC    (MV_CESA_MAX_MBUF_FRAGS*2 + 5)
 250
 251 #define MAX_CESA_CHAIN_LENGTH   20
 252
 253 typedef enum
 254 {
 255     MV_CESA_IDLE     = 0,
 256     MV_CESA_PENDING,
 257     MV_CESA_PROCESS,
 258     MV_CESA_READY,
 259 #if (MV_CESA_VERSION >= 3)
 260     MV_CESA_CHAIN,
 261 #endif
 262 } MV_CESA_STATE;
 263
 264
 265 /* Session database */
 266
 267 /* Map of Key materials of the session in SRAM.
 268  * Each field must be 8 byte aligned
 269  * Total size: 32 + 24 + 24 = 80 bytes
 270  */
 271 typedef struct
 272 {
 273     MV_U8  cryptoKey[MV_CESA_MAX_CRYPTO_KEY_LENGTH];
 274     MV_U8  macInnerIV[MV_CESA_MAX_DIGEST_SIZE];
 275     MV_U8  reservedInner[4];
 276     MV_U8  macOuterIV[MV_CESA_MAX_DIGEST_SIZE];
 277     MV_U8  reservedOuter[4];
 278
 279 } MV_CESA_SRAM_SA;
 280
 281 typedef struct
 282 {
 283     MV_CESA_SRAM_SA*    pSramSA;
 284     MV_U32              config;
 285     MV_U8               cryptoKeyLength;
 286     MV_U8               cryptoIvSize;
 287     MV_U8               cryptoBlockSize;
 288     MV_U8               digestSize;
 289     MV_U8               macKeyLength;
 290     MV_U8               valid;
 291     MV_U8               ctrMode;
 292     MV_U32              count;
 293
 294 } MV_CESA_SA;
 295
 296 /* DMA list management */
 297 typedef struct
 298 {
 299     MV_DMA_DESC*    pDmaFirst;
 300     MV_DMA_DESC*    pDmaLast;
 301
 302 } MV_CESA_DMA;
 303
 304
 305 typedef struct
 306 {
 307     MV_U8               numFrag;
 308     MV_U8               nextFrag;
 309     int                 bufOffset;
 310     int                 cryptoSize;
 311     int                 macSize;
 312     int                 newDigestOffset;
 313     MV_U8               orgDigest[MV_CESA_MAX_DIGEST_SIZE];
 314
 315 } MV_CESA_FRAGS;
 316
 317 /* Request queue */
 318 typedef struct
 319 {
 320     MV_U8               state;
 321     MV_U8               fragMode;
 322     MV_U8               fixOffset;
 323     MV_CESA_COMMAND*    pCmd;
 324     MV_CESA_COMMAND*    pOrgCmd;
 325     MV_BUF_INFO         dmaDescBuf;
 326     MV_CESA_DMA         dma[MV_CESA_MAX_REQ_FRAGS];
 327     MV_BUF_INFO         cesaDescBuf;
 328     MV_CESA_DESC*       pCesaDesc;
 329     MV_CESA_FRAGS       frags;
 330
 331
 332 } MV_CESA_REQ;
 333
 334
 335 /* SRAM map */
 336 /* Total SRAM size calculation */
 337 /*  SRAM size =
 338  *              MV_CESA_MAX_BUF_SIZE  +
 339  *              sizeof(MV_CESA_DESC)  +
 340  *              MV_CESA_MAX_IV_LENGTH +
 341  *              MV_CESA_MAX_IV_LENGTH +
 342  *              MV_CESA_MAX_DIGEST_SIZE +
 343  *              sizeof(MV_CESA_SRAM_SA)
 344  *            = 1600 + 32 + 16 + 16 + 24 + 80 + 280 (reserved) = 2048 bytes
 345  *            = 3200 + 32 + 16 + 16 + 24 + 80 + 728 (reserved) = 4096 bytes
 346  */
 347 typedef struct
 348 {
 349     MV_U8               buf[MV_CESA_MAX_BUF_SIZE];
 350     MV_CESA_DESC        desc;
 351     MV_U8               cryptoIV[MV_CESA_MAX_IV_LENGTH];
 352     MV_U8               tempCryptoIV[MV_CESA_MAX_IV_LENGTH];
 353     MV_U8               tempDigest[MV_CESA_MAX_DIGEST_SIZE+4];
 354     MV_CESA_SRAM_SA     sramSA;
 355
 356 } MV_CESA_SRAM_MAP;
 357
 358
 359 typedef struct
 360 {
 361     MV_U32  openedCount;
 362     MV_U32  closedCount;
 363     MV_U32  fragCount;
 364     MV_U32  reqCount;
 365     MV_U32  maxReqCount;
 366     MV_U32  procCount;
 367     MV_U32  readyCount;
 368     MV_U32  notReadyCount;
 369     MV_U32  startCount;
 370 #if (MV_CESA_VERSION >= 3)
 371     MV_U32  maxChainUsage;
 372 #endif
 373
 374 } MV_CESA_STATS;
 375
 376
 377 /* External variables */
 378
 379 extern MV_CESA_STATS    cesaStats;
 380 extern MV_CESA_FRAGS    cesaFrags;
 381
 382 extern MV_BUF_INFO      cesaSramSaBuf;
 383
 384 extern MV_CESA_SA*       pCesaSAD;
 385 extern MV_U16            cesaMaxSA;
 386
 387 extern MV_CESA_REQ*      pCesaReqFirst;
 388 extern MV_CESA_REQ*      pCesaReqLast;
 389 extern MV_CESA_REQ*      pCesaReqEmpty;
 390 extern MV_CESA_REQ*      pCesaReqProcess;
 391 extern int               cesaQueueDepth;
 392 extern int               cesaReqResources;
 393 #if (MV_CESA_VERSION>= 3)
 394 extern MV_U32           cesaChainLength;
 395 #endif
 396
 397 extern MV_CESA_SRAM_MAP*  cesaSramVirtPtr;
 398 extern MV_U32           cesaSramPhysAddr;
 399
 400 static INLINE MV_ULONG  mvCesaVirtToPhys(MV_BUF_INFO* pBufInfo, void* pVirt)
 401 {
 402     return (pBufInfo->bufPhysAddr + ((MV_U8*)pVirt - pBufInfo->bufVirtPtr));
 403 }
 404
 405 /* Additional DEBUG functions */
 406 void        mvCesaDebugSramSA(MV_CESA_SRAM_SA* pSramSA, int mode);
 407 void        mvCesaDebugCmd(MV_CESA_COMMAND* pCmd,  int mode);
 408 void        mvCesaDebugDescriptor(MV_CESA_DESC* pDesc);
 409
 410
 411
 412 #endif /* __mvCesa_h__ */