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 static const struct { 15 u8 value; 16 const char *error_text; 17 } desc_error_list[] = { 18 { 0x00, "No error." }, 19 { 0x01, "SGT Length Error. The descriptor is trying to read more data than is contained in the SGT table." }, 20 { 0x02, "SGT Null Entry Error." }, 21 { 0x03, "Job Ring Control Error. There is a bad value in the Job Ring Control register." }, 22 { 0x04, "Invalid Descriptor Command. The Descriptor Command field is invalid." }, 23 { 0x05, "Reserved." }, 24 { 0x06, "Invalid KEY Command" }, 25 { 0x07, "Invalid LOAD Command" }, 26 { 0x08, "Invalid STORE Command" }, 27 { 0x09, "Invalid OPERATION Command" }, 28 { 0x0A, "Invalid FIFO LOAD Command" }, 29 { 0x0B, "Invalid FIFO STORE Command" }, 30 { 0x0C, "Invalid MOVE/MOVE_LEN Command" }, 31 { 0x0D, "Invalid JUMP Command. A nonlocal JUMP Command is invalid because the target is not a Job Header Command, or the jump is from a Trusted Descriptor to a Job Descriptor, or because the target Descriptor contains a Shared Descriptor." }, 32 { 0x0E, "Invalid MATH Command" }, 33 { 0x0F, "Invalid SIGNATURE Command" }, 34 { 0x10, "Invalid Sequence Command. A SEQ IN PTR OR SEQ OUT PTR Command is invalid or a SEQ KEY, SEQ LOAD, SEQ FIFO LOAD, or SEQ FIFO STORE decremented the input or output sequence length below 0. This error may result if a built-in PROTOCOL Command has encountered a malformed PDU." }, 35 { 0x11, "Skip data type invalid. The type must be 0xE or 0xF."}, 36 { 0x12, "Shared Descriptor Header Error" }, 37 { 0x13, "Header Error. Invalid length or parity, or certain other problems." }, 38 { 0x14, "Burster Error. Burster has gotten to an illegal state" }, 39 { 0x15, "Context Register Length Error. The descriptor is trying to read or write past the end of the Context Register. A SEQ LOAD or SEQ STORE with the VLF bit set was executed with too large a length in the variable length register (VSOL for SEQ STORE or VSIL for SEQ LOAD)." }, 40 { 0x16, "DMA Error" }, 41 { 0x17, "Reserved." }, 42 { 0x1A, "Job failed due to JR reset" }, 43 { 0x1B, "Job failed due to Fail Mode" }, 44 { 0x1C, "DECO Watchdog timer timeout error" }, 45 { 0x1D, "DECO tried to copy a key from another DECO but the other DECO's Key Registers were locked" }, 46 { 0x1E, "DECO attempted to copy data from a DECO that had an unmasked Descriptor error" }, 47 { 0x1F, "LIODN error. DECO was trying to share from itself or from another DECO but the two Non-SEQ LIODN values didn't match or the 'shared from' DECO's Descriptor required that the SEQ LIODNs be the same and they aren't." }, 48 { 0x20, "DECO has completed a reset initiated via the DRR register" }, 49 { 0x21, "Nonce error. When using EKT (CCM) key encryption option in the FIFO STORE Command, the Nonce counter reached its maximum value and this encryption mode can no longer be used." }, 50 { 0x22, "Meta data is too large (> 511 bytes) for TLS decap (input frame; block ciphers) and IPsec decap (output frame, when doing the next header byte update) and DCRC (output frame)." }, 51 { 0x23, "Read Input Frame error" }, 52 { 0x24, "JDKEK, TDKEK or TDSK not loaded error" }, 53 { 0x80, "DNR (do not run) error" }, 54 { 0x81, "undefined protocol command" }, 55 { 0x82, "invalid setting in PDB" }, 56 { 0x83, "Anti-replay LATE error" }, 57 { 0x84, "Anti-replay REPLAY error" }, 58 { 0x85, "Sequence number overflow" }, 59 { 0x86, "Sigver invalid signature" }, 60 { 0x87, "DSA Sign Illegal test descriptor" }, 61 { 0x88, "Protocol Format Error - A protocol has seen an error in the format of data received. When running RSA, this means that formatting with random padding was used, and did not follow the form: 0x00, 0x02, 8-to-N bytes of non-zero pad, 0x00, F data." }, 62 { 0x89, "Protocol Size Error - A protocol has seen an error in size. When running RSA, pdb size N < (size of F) when no formatting is used; or pdb size N < (F + 11) when formatting is used." }, 63 { 0xC1, "Blob Command error: Undefined mode" }, 64 { 0xC2, "Blob Command error: Secure Memory Blob mode error" }, 65 { 0xC4, "Blob Command error: Black Blob key or input size error" }, 66 { 0xC5, "Blob Command error: Invalid key destination" }, 67 { 0xC8, "Blob Command error: Trusted/Secure mode error" }, 68 { 0xF0, "IPsec TTL or hop limit field either came in as 0, or was decremented to 0" }, 69 { 0xF1, "3GPP HFN matches or exceeds the Threshold" }, 70 }; 71 72 static const char * const cha_id_list[] = { 73 "", 74 "AES", 75 "DES", 76 "ARC4", 77 "MDHA", 78 "RNG", 79 "SNOW f8", 80 "Kasumi f8/9", 81 "PKHA", 82 "CRCA", 83 "SNOW f9", 84 "ZUCE", 85 "ZUCA", 86 }; 87 88 static const char * const err_id_list[] = { 89 "No error.", 90 "Mode error.", 91 "Data size error.", 92 "Key size error.", 93 "PKHA A memory size error.", 94 "PKHA B memory size error.", 95 "Data arrived out of sequence error.", 96 "PKHA divide-by-zero error.", 97 "PKHA modulus even error.", 98 "DES key parity error.", 99 "ICV check failed.", 100 "Hardware error.", 101 "Unsupported CCM AAD size.", 102 "Class 1 CHA is not reset", 103 "Invalid CHA combination was selected", 104 "Invalid CHA selected.", 105 }; 106 107 static const char * const rng_err_id_list[] = { 108 "", 109 "", 110 "", 111 "Instantiate", 112 "Not instantiated", 113 "Test instantiate", 114 "Prediction resistance", 115 "Prediction resistance and test request", 116 "Uninstantiate", 117 "Secure key generation", 118 }; 119 120 static void report_ccb_status(struct device *jrdev, const u32 status, 121 const char *error) 122 { 123 u8 cha_id = (status & JRSTA_CCBERR_CHAID_MASK) >> 124 JRSTA_CCBERR_CHAID_SHIFT; 125 u8 err_id = status & JRSTA_CCBERR_ERRID_MASK; 126 u8 idx = (status & JRSTA_DECOERR_INDEX_MASK) >> 127 JRSTA_DECOERR_INDEX_SHIFT; 128 char *idx_str; 129 const char *cha_str = "unidentified cha_id value 0x"; 130 char cha_err_code[3] = { 0 }; 131 const char *err_str = "unidentified err_id value 0x"; 132 char err_err_code[3] = { 0 }; 133 134 if (status & JRSTA_DECOERR_JUMP) 135 idx_str = "jump tgt desc idx"; 136 else 137 idx_str = "desc idx"; 138 139 if (cha_id < ARRAY_SIZE(cha_id_list)) 140 cha_str = cha_id_list[cha_id]; 141 else 142 snprintf(cha_err_code, sizeof(cha_err_code), "%02x", cha_id); 143 144 if ((cha_id << JRSTA_CCBERR_CHAID_SHIFT) == JRSTA_CCBERR_CHAID_RNG && 145 err_id < ARRAY_SIZE(rng_err_id_list) && 146 strlen(rng_err_id_list[err_id])) { 147 /* RNG-only error */ 148 err_str = rng_err_id_list[err_id]; 149 } else if (err_id < ARRAY_SIZE(err_id_list)) 150 err_str = err_id_list[err_id]; 151 else 152 snprintf(err_err_code, sizeof(err_err_code), "%02x", err_id); 153 154 dev_err(jrdev, "%08x: %s: %s %d: %s%s: %s%s\n", 155 status, error, idx_str, idx, 156 cha_str, cha_err_code, 157 err_str, err_err_code); 158 } 159 160 static void report_jump_status(struct device *jrdev, const u32 status, 161 const char *error) 162 { 163 dev_err(jrdev, "%08x: %s: %s() not implemented\n", 164 status, error, __func__); 165 } 166 167 static void report_deco_status(struct device *jrdev, const u32 status, 168 const char *error) 169 { 170 u8 err_id = status & JRSTA_DECOERR_ERROR_MASK; 171 u8 idx = (status & JRSTA_DECOERR_INDEX_MASK) >> 172 JRSTA_DECOERR_INDEX_SHIFT; 173 char *idx_str; 174 const char *err_str = "unidentified error value 0x"; 175 char err_err_code[3] = { 0 }; 176 int i; 177 178 if (status & JRSTA_DECOERR_JUMP) 179 idx_str = "jump tgt desc idx"; 180 else 181 idx_str = "desc idx"; 182 183 for (i = 0; i < ARRAY_SIZE(desc_error_list); i++) 184 if (desc_error_list[i].value == err_id) 185 break; 186 187 if (i != ARRAY_SIZE(desc_error_list) && desc_error_list[i].error_text) 188 err_str = desc_error_list[i].error_text; 189 else 190 snprintf(err_err_code, sizeof(err_err_code), "%02x", err_id); 191 192 dev_err(jrdev, "%08x: %s: %s %d: %s%s\n", 193 status, error, idx_str, idx, err_str, err_err_code); 194 } 195 196 static void report_jr_status(struct device *jrdev, const u32 status, 197 const char *error) 198 { 199 dev_err(jrdev, "%08x: %s: %s() not implemented\n", 200 status, error, __func__); 201 } 202 203 static void report_cond_code_status(struct device *jrdev, const u32 status, 204 const char *error) 205 { 206 dev_err(jrdev, "%08x: %s: %s() not implemented\n", 207 status, error, __func__); 208 } 209 210 void caam_jr_strstatus(struct device *jrdev, u32 status) 211 { 212 static const struct stat_src { 213 void (*report_ssed)(struct device *jrdev, const u32 status, 214 const char *error); 215 const char *error; 216 } status_src[] = { 217 { NULL, "No error" }, 218 { NULL, NULL }, 219 { report_ccb_status, "CCB" }, 220 { report_jump_status, "Jump" }, 221 { report_deco_status, "DECO" }, 222 { NULL, NULL }, 223 { report_jr_status, "Job Ring" }, 224 { report_cond_code_status, "Condition Code" }, 225 }; 226 u32 ssrc = status >> JRSTA_SSRC_SHIFT; 227 const char *error = status_src[ssrc].error; 228 229 /* 230 * If there is no further error handling function, just 231 * print the error code, error string and exit. Otherwise 232 * call the handler function. 233 */ 234 if (!status_src[ssrc].report_ssed) 235 dev_err(jrdev, "%08x: %s: \n", status, status_src[ssrc].error); 236 else 237 status_src[ssrc].report_ssed(jrdev, status, error); 238 } 239 EXPORT_SYMBOL(caam_jr_strstatus); 240