1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * caam descriptor construction helper functions 4 * 5 * Copyright 2008-2012 Freescale Semiconductor, Inc. 6 */ 7 8 #ifndef DESC_CONSTR_H 9 #define DESC_CONSTR_H 10 11 #include "desc.h" 12 #include "regs.h" 13 14 #define IMMEDIATE (1 << 23) 15 #define CAAM_CMD_SZ sizeof(u32) 16 #define CAAM_PTR_SZ sizeof(dma_addr_t) 17 #define CAAM_DESC_BYTES_MAX (CAAM_CMD_SZ * MAX_CAAM_DESCSIZE) 18 #define DESC_JOB_IO_LEN (CAAM_CMD_SZ * 5 + CAAM_PTR_SZ * 3) 19 20 #ifdef DEBUG 21 #define PRINT_POS do { printk(KERN_DEBUG "%02d: %s\n", desc_len(desc),\ 22 &__func__[sizeof("append")]); } while (0) 23 #else 24 #define PRINT_POS 25 #endif 26 27 #define SET_OK_NO_PROP_ERRORS (IMMEDIATE | LDST_CLASS_DECO | \ 28 LDST_SRCDST_WORD_DECOCTRL | \ 29 (LDOFF_CHG_SHARE_OK_NO_PROP << \ 30 LDST_OFFSET_SHIFT)) 31 #define DISABLE_AUTO_INFO_FIFO (IMMEDIATE | LDST_CLASS_DECO | \ 32 LDST_SRCDST_WORD_DECOCTRL | \ 33 (LDOFF_DISABLE_AUTO_NFIFO << LDST_OFFSET_SHIFT)) 34 #define ENABLE_AUTO_INFO_FIFO (IMMEDIATE | LDST_CLASS_DECO | \ 35 LDST_SRCDST_WORD_DECOCTRL | \ 36 (LDOFF_ENABLE_AUTO_NFIFO << LDST_OFFSET_SHIFT)) 37 38 extern bool caam_little_end; 39 40 static inline int desc_len(u32 * const desc) 41 { 42 return caam32_to_cpu(*desc) & HDR_DESCLEN_MASK; 43 } 44 45 static inline int desc_bytes(void * const desc) 46 { 47 return desc_len(desc) * CAAM_CMD_SZ; 48 } 49 50 static inline u32 *desc_end(u32 * const desc) 51 { 52 return desc + desc_len(desc); 53 } 54 55 static inline void *sh_desc_pdb(u32 * const desc) 56 { 57 return desc + 1; 58 } 59 60 static inline void init_desc(u32 * const desc, u32 options) 61 { 62 *desc = cpu_to_caam32((options | HDR_ONE) + 1); 63 } 64 65 static inline void init_sh_desc(u32 * const desc, u32 options) 66 { 67 PRINT_POS; 68 init_desc(desc, CMD_SHARED_DESC_HDR | options); 69 } 70 71 static inline void init_sh_desc_pdb(u32 * const desc, u32 options, 72 size_t pdb_bytes) 73 { 74 u32 pdb_len = (pdb_bytes + CAAM_CMD_SZ - 1) / CAAM_CMD_SZ; 75 76 init_sh_desc(desc, (((pdb_len + 1) << HDR_START_IDX_SHIFT) + pdb_len) | 77 options); 78 } 79 80 static inline void init_job_desc(u32 * const desc, u32 options) 81 { 82 init_desc(desc, CMD_DESC_HDR | options); 83 } 84 85 static inline void init_job_desc_pdb(u32 * const desc, u32 options, 86 size_t pdb_bytes) 87 { 88 u32 pdb_len = (pdb_bytes + CAAM_CMD_SZ - 1) / CAAM_CMD_SZ; 89 90 init_job_desc(desc, (((pdb_len + 1) << HDR_START_IDX_SHIFT)) | options); 91 } 92 93 static inline void append_ptr(u32 * const desc, dma_addr_t ptr) 94 { 95 dma_addr_t *offset = (dma_addr_t *)desc_end(desc); 96 97 *offset = cpu_to_caam_dma(ptr); 98 99 (*desc) = cpu_to_caam32(caam32_to_cpu(*desc) + 100 CAAM_PTR_SZ / CAAM_CMD_SZ); 101 } 102 103 static inline void init_job_desc_shared(u32 * const desc, dma_addr_t ptr, 104 int len, u32 options) 105 { 106 PRINT_POS; 107 init_job_desc(desc, HDR_SHARED | options | 108 (len << HDR_START_IDX_SHIFT)); 109 append_ptr(desc, ptr); 110 } 111 112 static inline void append_data(u32 * const desc, const void *data, int len) 113 { 114 u32 *offset = desc_end(desc); 115 116 if (len) /* avoid sparse warning: memcpy with byte count of 0 */ 117 memcpy(offset, data, len); 118 119 (*desc) = cpu_to_caam32(caam32_to_cpu(*desc) + 120 (len + CAAM_CMD_SZ - 1) / CAAM_CMD_SZ); 121 } 122 123 static inline void append_cmd(u32 * const desc, u32 command) 124 { 125 u32 *cmd = desc_end(desc); 126 127 *cmd = cpu_to_caam32(command); 128 129 (*desc) = cpu_to_caam32(caam32_to_cpu(*desc) + 1); 130 } 131 132 #define append_u32 append_cmd 133 134 static inline void append_u64(u32 * const desc, u64 data) 135 { 136 u32 *offset = desc_end(desc); 137 138 /* Only 32-bit alignment is guaranteed in descriptor buffer */ 139 if (caam_little_end) { 140 *offset = cpu_to_caam32(lower_32_bits(data)); 141 *(++offset) = cpu_to_caam32(upper_32_bits(data)); 142 } else { 143 *offset = cpu_to_caam32(upper_32_bits(data)); 144 *(++offset) = cpu_to_caam32(lower_32_bits(data)); 145 } 146 147 (*desc) = cpu_to_caam32(caam32_to_cpu(*desc) + 2); 148 } 149 150 /* Write command without affecting header, and return pointer to next word */ 151 static inline u32 *write_cmd(u32 * const desc, u32 command) 152 { 153 *desc = cpu_to_caam32(command); 154 155 return desc + 1; 156 } 157 158 static inline void append_cmd_ptr(u32 * const desc, dma_addr_t ptr, int len, 159 u32 command) 160 { 161 append_cmd(desc, command | len); 162 append_ptr(desc, ptr); 163 } 164 165 /* Write length after pointer, rather than inside command */ 166 static inline void append_cmd_ptr_extlen(u32 * const desc, dma_addr_t ptr, 167 unsigned int len, u32 command) 168 { 169 append_cmd(desc, command); 170 if (!(command & (SQIN_RTO | SQIN_PRE))) 171 append_ptr(desc, ptr); 172 append_cmd(desc, len); 173 } 174 175 static inline void append_cmd_data(u32 * const desc, const void *data, int len, 176 u32 command) 177 { 178 append_cmd(desc, command | IMMEDIATE | len); 179 append_data(desc, data, len); 180 } 181 182 #define APPEND_CMD_RET(cmd, op) \ 183 static inline u32 *append_##cmd(u32 * const desc, u32 options) \ 184 { \ 185 u32 *cmd = desc_end(desc); \ 186 PRINT_POS; \ 187 append_cmd(desc, CMD_##op | options); \ 188 return cmd; \ 189 } 190 APPEND_CMD_RET(jump, JUMP) 191 APPEND_CMD_RET(move, MOVE) 192 APPEND_CMD_RET(move_len, MOVE_LEN) 193 194 static inline void set_jump_tgt_here(u32 * const desc, u32 *jump_cmd) 195 { 196 *jump_cmd = cpu_to_caam32(caam32_to_cpu(*jump_cmd) | 197 (desc_len(desc) - (jump_cmd - desc))); 198 } 199 200 static inline void set_move_tgt_here(u32 * const desc, u32 *move_cmd) 201 { 202 u32 val = caam32_to_cpu(*move_cmd); 203 204 val &= ~MOVE_OFFSET_MASK; 205 val |= (desc_len(desc) << (MOVE_OFFSET_SHIFT + 2)) & MOVE_OFFSET_MASK; 206 *move_cmd = cpu_to_caam32(val); 207 } 208 209 #define APPEND_CMD(cmd, op) \ 210 static inline void append_##cmd(u32 * const desc, u32 options) \ 211 { \ 212 PRINT_POS; \ 213 append_cmd(desc, CMD_##op | options); \ 214 } 215 APPEND_CMD(operation, OPERATION) 216 217 #define APPEND_CMD_LEN(cmd, op) \ 218 static inline void append_##cmd(u32 * const desc, unsigned int len, \ 219 u32 options) \ 220 { \ 221 PRINT_POS; \ 222 append_cmd(desc, CMD_##op | len | options); \ 223 } 224 225 APPEND_CMD_LEN(seq_load, SEQ_LOAD) 226 APPEND_CMD_LEN(seq_store, SEQ_STORE) 227 APPEND_CMD_LEN(seq_fifo_load, SEQ_FIFO_LOAD) 228 APPEND_CMD_LEN(seq_fifo_store, SEQ_FIFO_STORE) 229 230 #define APPEND_CMD_PTR(cmd, op) \ 231 static inline void append_##cmd(u32 * const desc, dma_addr_t ptr, \ 232 unsigned int len, u32 options) \ 233 { \ 234 PRINT_POS; \ 235 append_cmd_ptr(desc, ptr, len, CMD_##op | options); \ 236 } 237 APPEND_CMD_PTR(key, KEY) 238 APPEND_CMD_PTR(load, LOAD) 239 APPEND_CMD_PTR(fifo_load, FIFO_LOAD) 240 APPEND_CMD_PTR(fifo_store, FIFO_STORE) 241 242 static inline void append_store(u32 * const desc, dma_addr_t ptr, 243 unsigned int len, u32 options) 244 { 245 u32 cmd_src; 246 247 cmd_src = options & LDST_SRCDST_MASK; 248 249 append_cmd(desc, CMD_STORE | options | len); 250 251 /* The following options do not require pointer */ 252 if (!(cmd_src == LDST_SRCDST_WORD_DESCBUF_SHARED || 253 cmd_src == LDST_SRCDST_WORD_DESCBUF_JOB || 254 cmd_src == LDST_SRCDST_WORD_DESCBUF_JOB_WE || 255 cmd_src == LDST_SRCDST_WORD_DESCBUF_SHARED_WE)) 256 append_ptr(desc, ptr); 257 } 258 259 #define APPEND_SEQ_PTR_INTLEN(cmd, op) \ 260 static inline void append_seq_##cmd##_ptr_intlen(u32 * const desc, \ 261 dma_addr_t ptr, \ 262 unsigned int len, \ 263 u32 options) \ 264 { \ 265 PRINT_POS; \ 266 if (options & (SQIN_RTO | SQIN_PRE)) \ 267 append_cmd(desc, CMD_SEQ_##op##_PTR | len | options); \ 268 else \ 269 append_cmd_ptr(desc, ptr, len, CMD_SEQ_##op##_PTR | options); \ 270 } 271 APPEND_SEQ_PTR_INTLEN(in, IN) 272 APPEND_SEQ_PTR_INTLEN(out, OUT) 273 274 #define APPEND_CMD_PTR_TO_IMM(cmd, op) \ 275 static inline void append_##cmd##_as_imm(u32 * const desc, const void *data, \ 276 unsigned int len, u32 options) \ 277 { \ 278 PRINT_POS; \ 279 append_cmd_data(desc, data, len, CMD_##op | options); \ 280 } 281 APPEND_CMD_PTR_TO_IMM(load, LOAD); 282 APPEND_CMD_PTR_TO_IMM(fifo_load, FIFO_LOAD); 283 284 #define APPEND_CMD_PTR_EXTLEN(cmd, op) \ 285 static inline void append_##cmd##_extlen(u32 * const desc, dma_addr_t ptr, \ 286 unsigned int len, u32 options) \ 287 { \ 288 PRINT_POS; \ 289 append_cmd_ptr_extlen(desc, ptr, len, CMD_##op | SQIN_EXT | options); \ 290 } 291 APPEND_CMD_PTR_EXTLEN(seq_in_ptr, SEQ_IN_PTR) 292 APPEND_CMD_PTR_EXTLEN(seq_out_ptr, SEQ_OUT_PTR) 293 294 /* 295 * Determine whether to store length internally or externally depending on 296 * the size of its type 297 */ 298 #define APPEND_CMD_PTR_LEN(cmd, op, type) \ 299 static inline void append_##cmd(u32 * const desc, dma_addr_t ptr, \ 300 type len, u32 options) \ 301 { \ 302 PRINT_POS; \ 303 if (sizeof(type) > sizeof(u16)) \ 304 append_##cmd##_extlen(desc, ptr, len, options); \ 305 else \ 306 append_##cmd##_intlen(desc, ptr, len, options); \ 307 } 308 APPEND_CMD_PTR_LEN(seq_in_ptr, SEQ_IN_PTR, u32) 309 APPEND_CMD_PTR_LEN(seq_out_ptr, SEQ_OUT_PTR, u32) 310 311 /* 312 * 2nd variant for commands whose specified immediate length differs 313 * from length of immediate data provided, e.g., split keys 314 */ 315 #define APPEND_CMD_PTR_TO_IMM2(cmd, op) \ 316 static inline void append_##cmd##_as_imm(u32 * const desc, const void *data, \ 317 unsigned int data_len, \ 318 unsigned int len, u32 options) \ 319 { \ 320 PRINT_POS; \ 321 append_cmd(desc, CMD_##op | IMMEDIATE | len | options); \ 322 append_data(desc, data, data_len); \ 323 } 324 APPEND_CMD_PTR_TO_IMM2(key, KEY); 325 326 #define APPEND_CMD_RAW_IMM(cmd, op, type) \ 327 static inline void append_##cmd##_imm_##type(u32 * const desc, type immediate, \ 328 u32 options) \ 329 { \ 330 PRINT_POS; \ 331 if (options & LDST_LEN_MASK) \ 332 append_cmd(desc, CMD_##op | IMMEDIATE | options); \ 333 else \ 334 append_cmd(desc, CMD_##op | IMMEDIATE | options | \ 335 sizeof(type)); \ 336 append_cmd(desc, immediate); \ 337 } 338 APPEND_CMD_RAW_IMM(load, LOAD, u32); 339 340 /* 341 * ee - endianness 342 * size - size of immediate type in bytes 343 */ 344 #define APPEND_CMD_RAW_IMM2(cmd, op, ee, size) \ 345 static inline void append_##cmd##_imm_##ee##size(u32 *desc, \ 346 u##size immediate, \ 347 u32 options) \ 348 { \ 349 __##ee##size data = cpu_to_##ee##size(immediate); \ 350 PRINT_POS; \ 351 append_cmd(desc, CMD_##op | IMMEDIATE | options | sizeof(data)); \ 352 append_data(desc, &data, sizeof(data)); \ 353 } 354 355 APPEND_CMD_RAW_IMM2(load, LOAD, be, 32); 356 357 /* 358 * Append math command. Only the last part of destination and source need to 359 * be specified 360 */ 361 #define APPEND_MATH(op, desc, dest, src_0, src_1, len) \ 362 append_cmd(desc, CMD_MATH | MATH_FUN_##op | MATH_DEST_##dest | \ 363 MATH_SRC0_##src_0 | MATH_SRC1_##src_1 | (u32)len); 364 365 #define append_math_add(desc, dest, src0, src1, len) \ 366 APPEND_MATH(ADD, desc, dest, src0, src1, len) 367 #define append_math_sub(desc, dest, src0, src1, len) \ 368 APPEND_MATH(SUB, desc, dest, src0, src1, len) 369 #define append_math_add_c(desc, dest, src0, src1, len) \ 370 APPEND_MATH(ADDC, desc, dest, src0, src1, len) 371 #define append_math_sub_b(desc, dest, src0, src1, len) \ 372 APPEND_MATH(SUBB, desc, dest, src0, src1, len) 373 #define append_math_and(desc, dest, src0, src1, len) \ 374 APPEND_MATH(AND, desc, dest, src0, src1, len) 375 #define append_math_or(desc, dest, src0, src1, len) \ 376 APPEND_MATH(OR, desc, dest, src0, src1, len) 377 #define append_math_xor(desc, dest, src0, src1, len) \ 378 APPEND_MATH(XOR, desc, dest, src0, src1, len) 379 #define append_math_lshift(desc, dest, src0, src1, len) \ 380 APPEND_MATH(LSHIFT, desc, dest, src0, src1, len) 381 #define append_math_rshift(desc, dest, src0, src1, len) \ 382 APPEND_MATH(RSHIFT, desc, dest, src0, src1, len) 383 #define append_math_ldshift(desc, dest, src0, src1, len) \ 384 APPEND_MATH(SHLD, desc, dest, src0, src1, len) 385 386 /* Exactly one source is IMM. Data is passed in as u32 value */ 387 #define APPEND_MATH_IMM_u32(op, desc, dest, src_0, src_1, data) \ 388 do { \ 389 APPEND_MATH(op, desc, dest, src_0, src_1, CAAM_CMD_SZ); \ 390 append_cmd(desc, data); \ 391 } while (0) 392 393 #define append_math_add_imm_u32(desc, dest, src0, src1, data) \ 394 APPEND_MATH_IMM_u32(ADD, desc, dest, src0, src1, data) 395 #define append_math_sub_imm_u32(desc, dest, src0, src1, data) \ 396 APPEND_MATH_IMM_u32(SUB, desc, dest, src0, src1, data) 397 #define append_math_add_c_imm_u32(desc, dest, src0, src1, data) \ 398 APPEND_MATH_IMM_u32(ADDC, desc, dest, src0, src1, data) 399 #define append_math_sub_b_imm_u32(desc, dest, src0, src1, data) \ 400 APPEND_MATH_IMM_u32(SUBB, desc, dest, src0, src1, data) 401 #define append_math_and_imm_u32(desc, dest, src0, src1, data) \ 402 APPEND_MATH_IMM_u32(AND, desc, dest, src0, src1, data) 403 #define append_math_or_imm_u32(desc, dest, src0, src1, data) \ 404 APPEND_MATH_IMM_u32(OR, desc, dest, src0, src1, data) 405 #define append_math_xor_imm_u32(desc, dest, src0, src1, data) \ 406 APPEND_MATH_IMM_u32(XOR, desc, dest, src0, src1, data) 407 #define append_math_lshift_imm_u32(desc, dest, src0, src1, data) \ 408 APPEND_MATH_IMM_u32(LSHIFT, desc, dest, src0, src1, data) 409 #define append_math_rshift_imm_u32(desc, dest, src0, src1, data) \ 410 APPEND_MATH_IMM_u32(RSHIFT, desc, dest, src0, src1, data) 411 412 /* Exactly one source is IMM. Data is passed in as u64 value */ 413 #define APPEND_MATH_IMM_u64(op, desc, dest, src_0, src_1, data) \ 414 do { \ 415 u32 upper = (data >> 16) >> 16; \ 416 APPEND_MATH(op, desc, dest, src_0, src_1, CAAM_CMD_SZ * 2 | \ 417 (upper ? 0 : MATH_IFB)); \ 418 if (upper) \ 419 append_u64(desc, data); \ 420 else \ 421 append_u32(desc, lower_32_bits(data)); \ 422 } while (0) 423 424 #define append_math_add_imm_u64(desc, dest, src0, src1, data) \ 425 APPEND_MATH_IMM_u64(ADD, desc, dest, src0, src1, data) 426 #define append_math_sub_imm_u64(desc, dest, src0, src1, data) \ 427 APPEND_MATH_IMM_u64(SUB, desc, dest, src0, src1, data) 428 #define append_math_add_c_imm_u64(desc, dest, src0, src1, data) \ 429 APPEND_MATH_IMM_u64(ADDC, desc, dest, src0, src1, data) 430 #define append_math_sub_b_imm_u64(desc, dest, src0, src1, data) \ 431 APPEND_MATH_IMM_u64(SUBB, desc, dest, src0, src1, data) 432 #define append_math_and_imm_u64(desc, dest, src0, src1, data) \ 433 APPEND_MATH_IMM_u64(AND, desc, dest, src0, src1, data) 434 #define append_math_or_imm_u64(desc, dest, src0, src1, data) \ 435 APPEND_MATH_IMM_u64(OR, desc, dest, src0, src1, data) 436 #define append_math_xor_imm_u64(desc, dest, src0, src1, data) \ 437 APPEND_MATH_IMM_u64(XOR, desc, dest, src0, src1, data) 438 #define append_math_lshift_imm_u64(desc, dest, src0, src1, data) \ 439 APPEND_MATH_IMM_u64(LSHIFT, desc, dest, src0, src1, data) 440 #define append_math_rshift_imm_u64(desc, dest, src0, src1, data) \ 441 APPEND_MATH_IMM_u64(RSHIFT, desc, dest, src0, src1, data) 442 443 /** 444 * struct alginfo - Container for algorithm details 445 * @algtype: algorithm selector; for valid values, see documentation of the 446 * functions where it is used. 447 * @keylen: length of the provided algorithm key, in bytes 448 * @keylen_pad: padded length of the provided algorithm key, in bytes 449 * @key: address where algorithm key resides; virtual address if key_inline 450 * is true, dma (bus) address if key_inline is false. 451 * @key_inline: true - key can be inlined in the descriptor; false - key is 452 * referenced by the descriptor 453 */ 454 struct alginfo { 455 u32 algtype; 456 unsigned int keylen; 457 unsigned int keylen_pad; 458 union { 459 dma_addr_t key_dma; 460 const void *key_virt; 461 }; 462 bool key_inline; 463 }; 464 465 /** 466 * desc_inline_query() - Provide indications on which data items can be inlined 467 * and which shall be referenced in a shared descriptor. 468 * @sd_base_len: Shared descriptor base length - bytes consumed by the commands, 469 * excluding the data items to be inlined (or corresponding 470 * pointer if an item is not inlined). Each cnstr_* function that 471 * generates descriptors should have a define mentioning 472 * corresponding length. 473 * @jd_len: Maximum length of the job descriptor(s) that will be used 474 * together with the shared descriptor. 475 * @data_len: Array of lengths of the data items trying to be inlined 476 * @inl_mask: 32bit mask with bit x = 1 if data item x can be inlined, 0 477 * otherwise. 478 * @count: Number of data items (size of @data_len array); must be <= 32 479 * 480 * Return: 0 if data can be inlined / referenced, negative value if not. If 0, 481 * check @inl_mask for details. 482 */ 483 static inline int desc_inline_query(unsigned int sd_base_len, 484 unsigned int jd_len, unsigned int *data_len, 485 u32 *inl_mask, unsigned int count) 486 { 487 int rem_bytes = (int)(CAAM_DESC_BYTES_MAX - sd_base_len - jd_len); 488 unsigned int i; 489 490 *inl_mask = 0; 491 for (i = 0; (i < count) && (rem_bytes > 0); i++) { 492 if (rem_bytes - (int)(data_len[i] + 493 (count - i - 1) * CAAM_PTR_SZ) >= 0) { 494 rem_bytes -= data_len[i]; 495 *inl_mask |= (1 << i); 496 } else { 497 rem_bytes -= CAAM_PTR_SZ; 498 } 499 } 500 501 return (rem_bytes >= 0) ? 0 : -1; 502 } 503 504 /** 505 * append_proto_dkp - Derived Key Protocol (DKP): key -> split key 506 * @desc: pointer to buffer used for descriptor construction 507 * @adata: pointer to authentication transform definitions. 508 * keylen should be the length of initial key, while keylen_pad 509 * the length of the derived (split) key. 510 * Valid algorithm values - one of OP_ALG_ALGSEL_{MD5, SHA1, SHA224, 511 * SHA256, SHA384, SHA512}. 512 */ 513 static inline void append_proto_dkp(u32 * const desc, struct alginfo *adata) 514 { 515 u32 protid; 516 517 /* 518 * Quick & dirty translation from OP_ALG_ALGSEL_{MD5, SHA*} 519 * to OP_PCLID_DKP_{MD5, SHA*} 520 */ 521 protid = (adata->algtype & OP_ALG_ALGSEL_SUBMASK) | 522 (0x20 << OP_ALG_ALGSEL_SHIFT); 523 524 if (adata->key_inline) { 525 int words; 526 527 append_operation(desc, OP_TYPE_UNI_PROTOCOL | protid | 528 OP_PCL_DKP_SRC_IMM | OP_PCL_DKP_DST_IMM | 529 adata->keylen); 530 append_data(desc, adata->key_virt, adata->keylen); 531 532 /* Reserve space in descriptor buffer for the derived key */ 533 words = (ALIGN(adata->keylen_pad, CAAM_CMD_SZ) - 534 ALIGN(adata->keylen, CAAM_CMD_SZ)) / CAAM_CMD_SZ; 535 if (words) 536 (*desc) = cpu_to_caam32(caam32_to_cpu(*desc) + words); 537 } else { 538 append_operation(desc, OP_TYPE_UNI_PROTOCOL | protid | 539 OP_PCL_DKP_SRC_PTR | OP_PCL_DKP_DST_PTR | 540 adata->keylen); 541 append_ptr(desc, adata->key_dma); 542 } 543 } 544 545 #endif /* DESC_CONSTR_H */ 546