1 // SPDX-License-Identifier: GPL-2.0 2 /* Copyright(c) 2021 Intel Corporation. All rights rsvd. */ 3 4 #include "idxd.h" 5 #include "iaa_crypto.h" 6 7 /* 8 * Fixed Huffman tables the IAA hardware requires to implement RFC-1951. 9 */ 10 static const u32 fixed_ll_sym[286] = { 11 0x40030, 0x40031, 0x40032, 0x40033, 0x40034, 0x40035, 0x40036, 0x40037, 12 0x40038, 0x40039, 0x4003A, 0x4003B, 0x4003C, 0x4003D, 0x4003E, 0x4003F, 13 0x40040, 0x40041, 0x40042, 0x40043, 0x40044, 0x40045, 0x40046, 0x40047, 14 0x40048, 0x40049, 0x4004A, 0x4004B, 0x4004C, 0x4004D, 0x4004E, 0x4004F, 15 0x40050, 0x40051, 0x40052, 0x40053, 0x40054, 0x40055, 0x40056, 0x40057, 16 0x40058, 0x40059, 0x4005A, 0x4005B, 0x4005C, 0x4005D, 0x4005E, 0x4005F, 17 0x40060, 0x40061, 0x40062, 0x40063, 0x40064, 0x40065, 0x40066, 0x40067, 18 0x40068, 0x40069, 0x4006A, 0x4006B, 0x4006C, 0x4006D, 0x4006E, 0x4006F, 19 0x40070, 0x40071, 0x40072, 0x40073, 0x40074, 0x40075, 0x40076, 0x40077, 20 0x40078, 0x40079, 0x4007A, 0x4007B, 0x4007C, 0x4007D, 0x4007E, 0x4007F, 21 0x40080, 0x40081, 0x40082, 0x40083, 0x40084, 0x40085, 0x40086, 0x40087, 22 0x40088, 0x40089, 0x4008A, 0x4008B, 0x4008C, 0x4008D, 0x4008E, 0x4008F, 23 0x40090, 0x40091, 0x40092, 0x40093, 0x40094, 0x40095, 0x40096, 0x40097, 24 0x40098, 0x40099, 0x4009A, 0x4009B, 0x4009C, 0x4009D, 0x4009E, 0x4009F, 25 0x400A0, 0x400A1, 0x400A2, 0x400A3, 0x400A4, 0x400A5, 0x400A6, 0x400A7, 26 0x400A8, 0x400A9, 0x400AA, 0x400AB, 0x400AC, 0x400AD, 0x400AE, 0x400AF, 27 0x400B0, 0x400B1, 0x400B2, 0x400B3, 0x400B4, 0x400B5, 0x400B6, 0x400B7, 28 0x400B8, 0x400B9, 0x400BA, 0x400BB, 0x400BC, 0x400BD, 0x400BE, 0x400BF, 29 0x48190, 0x48191, 0x48192, 0x48193, 0x48194, 0x48195, 0x48196, 0x48197, 30 0x48198, 0x48199, 0x4819A, 0x4819B, 0x4819C, 0x4819D, 0x4819E, 0x4819F, 31 0x481A0, 0x481A1, 0x481A2, 0x481A3, 0x481A4, 0x481A5, 0x481A6, 0x481A7, 32 0x481A8, 0x481A9, 0x481AA, 0x481AB, 0x481AC, 0x481AD, 0x481AE, 0x481AF, 33 0x481B0, 0x481B1, 0x481B2, 0x481B3, 0x481B4, 0x481B5, 0x481B6, 0x481B7, 34 0x481B8, 0x481B9, 0x481BA, 0x481BB, 0x481BC, 0x481BD, 0x481BE, 0x481BF, 35 0x481C0, 0x481C1, 0x481C2, 0x481C3, 0x481C4, 0x481C5, 0x481C6, 0x481C7, 36 0x481C8, 0x481C9, 0x481CA, 0x481CB, 0x481CC, 0x481CD, 0x481CE, 0x481CF, 37 0x481D0, 0x481D1, 0x481D2, 0x481D3, 0x481D4, 0x481D5, 0x481D6, 0x481D7, 38 0x481D8, 0x481D9, 0x481DA, 0x481DB, 0x481DC, 0x481DD, 0x481DE, 0x481DF, 39 0x481E0, 0x481E1, 0x481E2, 0x481E3, 0x481E4, 0x481E5, 0x481E6, 0x481E7, 40 0x481E8, 0x481E9, 0x481EA, 0x481EB, 0x481EC, 0x481ED, 0x481EE, 0x481EF, 41 0x481F0, 0x481F1, 0x481F2, 0x481F3, 0x481F4, 0x481F5, 0x481F6, 0x481F7, 42 0x481F8, 0x481F9, 0x481FA, 0x481FB, 0x481FC, 0x481FD, 0x481FE, 0x481FF, 43 0x38000, 0x38001, 0x38002, 0x38003, 0x38004, 0x38005, 0x38006, 0x38007, 44 0x38008, 0x38009, 0x3800A, 0x3800B, 0x3800C, 0x3800D, 0x3800E, 0x3800F, 45 0x38010, 0x38011, 0x38012, 0x38013, 0x38014, 0x38015, 0x38016, 0x38017, 46 0x400C0, 0x400C1, 0x400C2, 0x400C3, 0x400C4, 0x400C5 47 }; 48 49 static const u32 fixed_d_sym[30] = { 50 0x28000, 0x28001, 0x28002, 0x28003, 0x28004, 0x28005, 0x28006, 0x28007, 51 0x28008, 0x28009, 0x2800A, 0x2800B, 0x2800C, 0x2800D, 0x2800E, 0x2800F, 52 0x28010, 0x28011, 0x28012, 0x28013, 0x28014, 0x28015, 0x28016, 0x28017, 53 0x28018, 0x28019, 0x2801A, 0x2801B, 0x2801C, 0x2801D 54 }; 55 56 static int init_fixed_mode(struct iaa_device_compression_mode *mode) 57 { 58 struct aecs_comp_table_record *comp_table = mode->aecs_comp_table; 59 u32 bfinal = 1; 60 u32 offset; 61 62 /* Configure aecs table using fixed Huffman table */ 63 comp_table->crc = 0; 64 comp_table->xor_checksum = 0; 65 offset = comp_table->num_output_accum_bits / 8; 66 comp_table->output_accum[offset] = FIXED_HDR | bfinal; 67 comp_table->num_output_accum_bits = FIXED_HDR_SIZE; 68 69 return 0; 70 } 71 72 int iaa_aecs_init_fixed(void) 73 { 74 int ret; 75 76 ret = add_iaa_compression_mode("fixed", 77 fixed_ll_sym, 78 sizeof(fixed_ll_sym), 79 fixed_d_sym, 80 sizeof(fixed_d_sym), 81 init_fixed_mode, NULL); 82 if (!ret) 83 pr_debug("IAA fixed compression mode initialized\n"); 84 85 return ret; 86 } 87 88 void iaa_aecs_cleanup_fixed(void) 89 { 90 remove_iaa_compression_mode("fixed"); 91 } 92