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", 43 "ARC4", 44 "MDHA", 45 "RNG", 46 "SNOW f8", 47 "Kasumi f8/9", 48 "PKHA", 49 "CRCA", 50 "SNOW f9", 51 "ZUCE", 52 "ZUCA", 53 }; 54 char *err_id_list[] = { 55 "No error.", 56 "Mode error.", 57 "Data size error.", 58 "Key size error.", 59 "PKHA A memory size error.", 60 "PKHA B memory size error.", 61 "Data arrived out of sequence error.", 62 "PKHA divide-by-zero error.", 63 "PKHA modulus even error.", 64 "DES key parity error.", 65 "ICV check failed.", 66 "Hardware error.", 67 "Unsupported CCM AAD size.", 68 "Class 1 CHA is not reset", 69 "Invalid CHA combination was selected", 70 "Invalid CHA selected.", 71 }; 72 char *rng_err_id_list[] = { 73 "", 74 "", 75 "", 76 "Instantiate", 77 "Not instantiated", 78 "Test instantiate", 79 "Prediction resistance", 80 "Prediction resistance and test request", 81 "Uninstantiate", 82 "Secure key generation", 83 }; 84 u8 cha_id = (status & JRSTA_CCBERR_CHAID_MASK) >> 85 JRSTA_CCBERR_CHAID_SHIFT; 86 u8 err_id = status & JRSTA_CCBERR_ERRID_MASK; 87 88 report_jump_idx(status, outstr); 89 90 if (cha_id < ARRAY_SIZE(cha_id_list)) { 91 SPRINTFCAT(outstr, "%s: ", cha_id_list[cha_id], 92 strlen(cha_id_list[cha_id])); 93 } else { 94 SPRINTFCAT(outstr, "unidentified cha_id value 0x%02x: ", 95 cha_id, sizeof("ff")); 96 } 97 98 if ((cha_id << JRSTA_CCBERR_CHAID_SHIFT) == JRSTA_CCBERR_CHAID_RNG && 99 err_id < ARRAY_SIZE(rng_err_id_list) && 100 strlen(rng_err_id_list[err_id])) { 101 /* RNG-only error */ 102 SPRINTFCAT(outstr, "%s", rng_err_id_list[err_id], 103 strlen(rng_err_id_list[err_id])); 104 } else if (err_id < ARRAY_SIZE(err_id_list)) { 105 SPRINTFCAT(outstr, "%s", err_id_list[err_id], 106 strlen(err_id_list[err_id])); 107 } else { 108 SPRINTFCAT(outstr, "unidentified err_id value 0x%02x", 109 err_id, sizeof("ff")); 110 } 111 } 112 113 static void report_jump_status(u32 status, char *outstr) 114 { 115 SPRINTFCAT(outstr, "%s() not implemented", __func__, sizeof(__func__)); 116 } 117 118 static void report_deco_status(u32 status, char *outstr) 119 { 120 const struct { 121 u8 value; 122 char *error_text; 123 } desc_error_list[] = { 124 { 0x00, "No error." }, 125 { 0x01, "SGT Length Error. The descriptor is trying to read " 126 "more data than is contained in the SGT table." }, 127 { 0x02, "SGT Null Entry Error." }, 128 { 0x03, "Job Ring Control Error. There is a bad value in the " 129 "Job Ring Control register." }, 130 { 0x04, "Invalid Descriptor Command. The Descriptor Command " 131 "field is invalid." }, 132 { 0x05, "Reserved." }, 133 { 0x06, "Invalid KEY Command" }, 134 { 0x07, "Invalid LOAD Command" }, 135 { 0x08, "Invalid STORE Command" }, 136 { 0x09, "Invalid OPERATION Command" }, 137 { 0x0A, "Invalid FIFO LOAD Command" }, 138 { 0x0B, "Invalid FIFO STORE Command" }, 139 { 0x0C, "Invalid MOVE/MOVE_LEN Command" }, 140 { 0x0D, "Invalid JUMP Command. A nonlocal JUMP Command is " 141 "invalid because the target is not a Job Header " 142 "Command, or the jump is from a Trusted Descriptor to " 143 "a Job Descriptor, or because the target Descriptor " 144 "contains a Shared Descriptor." }, 145 { 0x0E, "Invalid MATH Command" }, 146 { 0x0F, "Invalid SIGNATURE Command" }, 147 { 0x10, "Invalid Sequence Command. A SEQ IN PTR OR SEQ OUT PTR " 148 "Command is invalid or a SEQ KEY, SEQ LOAD, SEQ FIFO " 149 "LOAD, or SEQ FIFO STORE decremented the input or " 150 "output sequence length below 0. This error may result " 151 "if a built-in PROTOCOL Command has encountered a " 152 "malformed PDU." }, 153 { 0x11, "Skip data type invalid. The type must be 0xE or 0xF."}, 154 { 0x12, "Shared Descriptor Header Error" }, 155 { 0x13, "Header Error. Invalid length or parity, or certain " 156 "other problems." }, 157 { 0x14, "Burster Error. Burster has gotten to an illegal " 158 "state" }, 159 { 0x15, "Context Register Length Error. The descriptor is " 160 "trying to read or write past the end of the Context " 161 "Register. A SEQ LOAD or SEQ STORE with the VLF bit " 162 "set was executed with too large a length in the " 163 "variable length register (VSOL for SEQ STORE or VSIL " 164 "for SEQ LOAD)." }, 165 { 0x16, "DMA Error" }, 166 { 0x17, "Reserved." }, 167 { 0x1A, "Job failed due to JR reset" }, 168 { 0x1B, "Job failed due to Fail Mode" }, 169 { 0x1C, "DECO Watchdog timer timeout error" }, 170 { 0x1D, "DECO tried to copy a key from another DECO but the " 171 "other DECO's Key Registers were locked" }, 172 { 0x1E, "DECO attempted to copy data from a DECO that had an " 173 "unmasked Descriptor error" }, 174 { 0x1F, "LIODN error. DECO was trying to share from itself or " 175 "from another DECO but the two Non-SEQ LIODN values " 176 "didn't match or the 'shared from' DECO's Descriptor " 177 "required that the SEQ LIODNs be the same and they " 178 "aren't." }, 179 { 0x20, "DECO has completed a reset initiated via the DRR " 180 "register" }, 181 { 0x21, "Nonce error. When using EKT (CCM) key encryption " 182 "option in the FIFO STORE Command, the Nonce counter " 183 "reached its maximum value and this encryption mode " 184 "can no longer be used." }, 185 { 0x22, "Meta data is too large (> 511 bytes) for TLS decap " 186 "(input frame; block ciphers) and IPsec decap (output " 187 "frame, when doing the next header byte update) and " 188 "DCRC (output frame)." }, 189 { 0x23, "Read Input Frame error" }, 190 { 0x24, "JDKEK, TDKEK or TDSK not loaded error" }, 191 { 0x80, "DNR (do not run) error" }, 192 { 0x81, "undefined protocol command" }, 193 { 0x82, "invalid setting in PDB" }, 194 { 0x83, "Anti-replay LATE error" }, 195 { 0x84, "Anti-replay REPLAY error" }, 196 { 0x85, "Sequence number overflow" }, 197 { 0x86, "Sigver invalid signature" }, 198 { 0x87, "DSA Sign Illegal test descriptor" }, 199 { 0x88, "Protocol Format Error - A protocol has seen an error " 200 "in the format of data received. When running RSA, " 201 "this means that formatting with random padding was " 202 "used, and did not follow the form: 0x00, 0x02, 8-to-N " 203 "bytes of non-zero pad, 0x00, F data." }, 204 { 0x89, "Protocol Size Error - A protocol has seen an error in " 205 "size. When running RSA, pdb size N < (size of F) when " 206 "no formatting is used; or pdb size N < (F + 11) when " 207 "formatting is used." }, 208 { 0xC1, "Blob Command error: Undefined mode" }, 209 { 0xC2, "Blob Command error: Secure Memory Blob mode error" }, 210 { 0xC4, "Blob Command error: Black Blob key or input size " 211 "error" }, 212 { 0xC5, "Blob Command error: Invalid key destination" }, 213 { 0xC8, "Blob Command error: Trusted/Secure mode error" }, 214 { 0xF0, "IPsec TTL or hop limit field either came in as 0, " 215 "or was decremented to 0" }, 216 { 0xF1, "3GPP HFN matches or exceeds the Threshold" }, 217 }; 218 u8 desc_error = status & JRSTA_DECOERR_ERROR_MASK; 219 int i; 220 221 report_jump_idx(status, outstr); 222 223 for (i = 0; i < ARRAY_SIZE(desc_error_list); i++) 224 if (desc_error_list[i].value == desc_error) 225 break; 226 227 if (i != ARRAY_SIZE(desc_error_list) && desc_error_list[i].error_text) { 228 SPRINTFCAT(outstr, "%s", desc_error_list[i].error_text, 229 strlen(desc_error_list[i].error_text)); 230 } else { 231 SPRINTFCAT(outstr, "unidentified error value 0x%02x", 232 desc_error, sizeof("ff")); 233 } 234 } 235 236 static void report_jr_status(u32 status, char *outstr) 237 { 238 SPRINTFCAT(outstr, "%s() not implemented", __func__, sizeof(__func__)); 239 } 240 241 static void report_cond_code_status(u32 status, char *outstr) 242 { 243 SPRINTFCAT(outstr, "%s() not implemented", __func__, sizeof(__func__)); 244 } 245 246 char *caam_jr_strstatus(char *outstr, u32 status) 247 { 248 struct stat_src { 249 void (*report_ssed)(u32 status, char *outstr); 250 char *error; 251 } status_src[] = { 252 { NULL, "No error" }, 253 { NULL, NULL }, 254 { report_ccb_status, "CCB" }, 255 { report_jump_status, "Jump" }, 256 { report_deco_status, "DECO" }, 257 { NULL, NULL }, 258 { report_jr_status, "Job Ring" }, 259 { report_cond_code_status, "Condition Code" }, 260 }; 261 u32 ssrc = status >> JRSTA_SSRC_SHIFT; 262 263 sprintf(outstr, "%s: ", status_src[ssrc].error); 264 265 if (status_src[ssrc].report_ssed) 266 status_src[ssrc].report_ssed(status, outstr); 267 268 return outstr; 269 } 270 EXPORT_SYMBOL(caam_jr_strstatus); 271