1 /* 2 * CAAM Error Reporting 3 * 4 * Copyright 2009-2011 Freescale Semiconductor, Inc. 5 */ 6 7 #include "compat.h" 8 #include "regs.h" 9 #include "intern.h" 10 #include "desc.h" 11 #include "jr.h" 12 #include "error.h" 13 14 #define SPRINTFCAT(str, format, param, max_alloc) \ 15 { \ 16 char *tmp; \ 17 \ 18 tmp = kmalloc(sizeof(format) + max_alloc, GFP_ATOMIC); \ 19 sprintf(tmp, format, param); \ 20 strcat(str, tmp); \ 21 kfree(tmp); \ 22 } 23 24 static void report_jump_idx(u32 status, char *outstr) 25 { 26 u8 idx = (status & JRSTA_DECOERR_INDEX_MASK) >> 27 JRSTA_DECOERR_INDEX_SHIFT; 28 29 if (status & JRSTA_DECOERR_JUMP) 30 strcat(outstr, "jump tgt desc idx "); 31 else 32 strcat(outstr, "desc idx "); 33 34 SPRINTFCAT(outstr, "%d: ", idx, sizeof("255")); 35 } 36 37 static void report_ccb_status(u32 status, char *outstr) 38 { 39 char *cha_id_list[] = { 40 "", 41 "AES", 42 "DES, 3DES", 43 "ARC4", 44 "MD5, SHA-1, SH-224, SHA-256, SHA-384, SHA-512", 45 "RNG", 46 "SNOW f8", 47 "Kasumi f8, f9", 48 "All Public Key Algorithms", 49 "CRC", 50 "SNOW f9", 51 }; 52 char *err_id_list[] = { 53 "None. No error.", 54 "Mode error.", 55 "Data size error.", 56 "Key size error.", 57 "PKHA A memory size error.", 58 "PKHA B memory size error.", 59 "Data arrived out of sequence error.", 60 "PKHA divide-by-zero error.", 61 "PKHA modulus even error.", 62 "DES key parity error.", 63 "ICV check failed.", 64 "Hardware error.", 65 "Unsupported CCM AAD size.", 66 "Class 1 CHA is not reset", 67 "Invalid CHA combination was selected", 68 "Invalid CHA selected.", 69 }; 70 u8 cha_id = (status & JRSTA_CCBERR_CHAID_MASK) >> 71 JRSTA_CCBERR_CHAID_SHIFT; 72 u8 err_id = status & JRSTA_CCBERR_ERRID_MASK; 73 74 report_jump_idx(status, outstr); 75 76 if (cha_id < ARRAY_SIZE(cha_id_list)) { 77 SPRINTFCAT(outstr, "%s: ", cha_id_list[cha_id], 78 strlen(cha_id_list[cha_id])); 79 } else { 80 SPRINTFCAT(outstr, "unidentified cha_id value 0x%02x: ", 81 cha_id, sizeof("ff")); 82 } 83 84 if (err_id < ARRAY_SIZE(err_id_list)) { 85 SPRINTFCAT(outstr, "%s", err_id_list[err_id], 86 strlen(err_id_list[err_id])); 87 } else { 88 SPRINTFCAT(outstr, "unidentified err_id value 0x%02x", 89 err_id, sizeof("ff")); 90 } 91 } 92 93 static void report_jump_status(u32 status, char *outstr) 94 { 95 SPRINTFCAT(outstr, "%s() not implemented", __func__, sizeof(__func__)); 96 } 97 98 static void report_deco_status(u32 status, char *outstr) 99 { 100 const struct { 101 u8 value; 102 char *error_text; 103 } desc_error_list[] = { 104 { 0x00, "None. No error." }, 105 { 0x01, "SGT Length Error. The descriptor is trying to read " 106 "more data than is contained in the SGT table." }, 107 { 0x02, "Reserved." }, 108 { 0x03, "Job Ring Control Error. There is a bad value in the " 109 "Job Ring Control register." }, 110 { 0x04, "Invalid Descriptor Command. The Descriptor Command " 111 "field is invalid." }, 112 { 0x05, "Reserved." }, 113 { 0x06, "Invalid KEY Command" }, 114 { 0x07, "Invalid LOAD Command" }, 115 { 0x08, "Invalid STORE Command" }, 116 { 0x09, "Invalid OPERATION Command" }, 117 { 0x0A, "Invalid FIFO LOAD Command" }, 118 { 0x0B, "Invalid FIFO STORE Command" }, 119 { 0x0C, "Invalid MOVE Command" }, 120 { 0x0D, "Invalid JUMP Command. A nonlocal JUMP Command is " 121 "invalid because the target is not a Job Header " 122 "Command, or the jump is from a Trusted Descriptor to " 123 "a Job Descriptor, or because the target Descriptor " 124 "contains a Shared Descriptor." }, 125 { 0x0E, "Invalid MATH Command" }, 126 { 0x0F, "Invalid SIGNATURE Command" }, 127 { 0x10, "Invalid Sequence Command. A SEQ IN PTR OR SEQ OUT PTR " 128 "Command is invalid or a SEQ KEY, SEQ LOAD, SEQ FIFO " 129 "LOAD, or SEQ FIFO STORE decremented the input or " 130 "output sequence length below 0. This error may result " 131 "if a built-in PROTOCOL Command has encountered a " 132 "malformed PDU." }, 133 { 0x11, "Skip data type invalid. The type must be 0xE or 0xF."}, 134 { 0x12, "Shared Descriptor Header Error" }, 135 { 0x13, "Header Error. Invalid length or parity, or certain " 136 "other problems." }, 137 { 0x14, "Burster Error. Burster has gotten to an illegal " 138 "state" }, 139 { 0x15, "Context Register Length Error. The descriptor is " 140 "trying to read or write past the end of the Context " 141 "Register. A SEQ LOAD or SEQ STORE with the VLF bit " 142 "set was executed with too large a length in the " 143 "variable length register (VSOL for SEQ STORE or VSIL " 144 "for SEQ LOAD)." }, 145 { 0x16, "DMA Error" }, 146 { 0x17, "Reserved." }, 147 { 0x1A, "Job failed due to JR reset" }, 148 { 0x1B, "Job failed due to Fail Mode" }, 149 { 0x1C, "DECO Watchdog timer timeout error" }, 150 { 0x1D, "DECO tried to copy a key from another DECO but the " 151 "other DECO's Key Registers were locked" }, 152 { 0x1E, "DECO attempted to copy data from a DECO that had an " 153 "unmasked Descriptor error" }, 154 { 0x1F, "LIODN error. DECO was trying to share from itself or " 155 "from another DECO but the two Non-SEQ LIODN values " 156 "didn't match or the 'shared from' DECO's Descriptor " 157 "required that the SEQ LIODNs be the same and they " 158 "aren't." }, 159 { 0x20, "DECO has completed a reset initiated via the DRR " 160 "register" }, 161 { 0x21, "Nonce error. When using EKT (CCM) key encryption " 162 "option in the FIFO STORE Command, the Nonce counter " 163 "reached its maximum value and this encryption mode " 164 "can no longer be used." }, 165 { 0x22, "Meta data is too large (> 511 bytes) for TLS decap " 166 "(input frame; block ciphers) and IPsec decap (output " 167 "frame, when doing the next header byte update) and " 168 "DCRC (output frame)." }, 169 { 0x80, "DNR (do not run) error" }, 170 { 0x81, "undefined protocol command" }, 171 { 0x82, "invalid setting in PDB" }, 172 { 0x83, "Anti-replay LATE error" }, 173 { 0x84, "Anti-replay REPLAY error" }, 174 { 0x85, "Sequence number overflow" }, 175 { 0x86, "Sigver invalid signature" }, 176 { 0x87, "DSA Sign Illegal test descriptor" }, 177 { 0x88, "Protocol Format Error - A protocol has seen an error " 178 "in the format of data received. When running RSA, " 179 "this means that formatting with random padding was " 180 "used, and did not follow the form: 0x00, 0x02, 8-to-N " 181 "bytes of non-zero pad, 0x00, F data." }, 182 { 0x89, "Protocol Size Error - A protocol has seen an error in " 183 "size. When running RSA, pdb size N < (size of F) when " 184 "no formatting is used; or pdb size N < (F + 11) when " 185 "formatting is used." }, 186 { 0xC1, "Blob Command error: Undefined mode" }, 187 { 0xC2, "Blob Command error: Secure Memory Blob mode error" }, 188 { 0xC4, "Blob Command error: Black Blob key or input size " 189 "error" }, 190 { 0xC5, "Blob Command error: Invalid key destination" }, 191 { 0xC8, "Blob Command error: Trusted/Secure mode error" }, 192 { 0xF0, "IPsec TTL or hop limit field either came in as 0, " 193 "or was decremented to 0" }, 194 { 0xF1, "3GPP HFN matches or exceeds the Threshold" }, 195 }; 196 u8 desc_error = status & JRSTA_DECOERR_ERROR_MASK; 197 int i; 198 199 report_jump_idx(status, outstr); 200 201 for (i = 0; i < ARRAY_SIZE(desc_error_list); i++) 202 if (desc_error_list[i].value == desc_error) 203 break; 204 205 if (i != ARRAY_SIZE(desc_error_list) && desc_error_list[i].error_text) { 206 SPRINTFCAT(outstr, "%s", desc_error_list[i].error_text, 207 strlen(desc_error_list[i].error_text)); 208 } else { 209 SPRINTFCAT(outstr, "unidentified error value 0x%02x", 210 desc_error, sizeof("ff")); 211 } 212 } 213 214 static void report_jr_status(u32 status, char *outstr) 215 { 216 SPRINTFCAT(outstr, "%s() not implemented", __func__, sizeof(__func__)); 217 } 218 219 static void report_cond_code_status(u32 status, char *outstr) 220 { 221 SPRINTFCAT(outstr, "%s() not implemented", __func__, sizeof(__func__)); 222 } 223 224 char *caam_jr_strstatus(char *outstr, u32 status) 225 { 226 struct stat_src { 227 void (*report_ssed)(u32 status, char *outstr); 228 char *error; 229 } status_src[] = { 230 { NULL, "No error" }, 231 { NULL, NULL }, 232 { report_ccb_status, "CCB" }, 233 { report_jump_status, "Jump" }, 234 { report_deco_status, "DECO" }, 235 { NULL, NULL }, 236 { report_jr_status, "Job Ring" }, 237 { report_cond_code_status, "Condition Code" }, 238 }; 239 u32 ssrc = status >> JRSTA_SSRC_SHIFT; 240 241 sprintf(outstr, "%s: ", status_src[ssrc].error); 242 243 if (status_src[ssrc].report_ssed) 244 status_src[ssrc].report_ssed(status, outstr); 245 246 return outstr; 247 } 248 EXPORT_SYMBOL(caam_jr_strstatus); 249