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 "desc.h" 10 #include "error.h" 11 12 static const struct { 13 u8 value; 14 const char *error_text; 15 } desc_error_list[] = { 16 { 0x00, "No error." }, 17 { 0x01, "SGT Length Error. The descriptor is trying to read more data than is contained in the SGT table." }, 18 { 0x02, "SGT Null Entry Error." }, 19 { 0x03, "Job Ring Control Error. There is a bad value in the Job Ring Control register." }, 20 { 0x04, "Invalid Descriptor Command. The Descriptor Command field is invalid." }, 21 { 0x05, "Reserved." }, 22 { 0x06, "Invalid KEY Command" }, 23 { 0x07, "Invalid LOAD Command" }, 24 { 0x08, "Invalid STORE Command" }, 25 { 0x09, "Invalid OPERATION Command" }, 26 { 0x0A, "Invalid FIFO LOAD Command" }, 27 { 0x0B, "Invalid FIFO STORE Command" }, 28 { 0x0C, "Invalid MOVE/MOVE_LEN Command" }, 29 { 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." }, 30 { 0x0E, "Invalid MATH Command" }, 31 { 0x0F, "Invalid SIGNATURE Command" }, 32 { 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." }, 33 { 0x11, "Skip data type invalid. The type must be 0xE or 0xF."}, 34 { 0x12, "Shared Descriptor Header Error" }, 35 { 0x13, "Header Error. Invalid length or parity, or certain other problems." }, 36 { 0x14, "Burster Error. Burster has gotten to an illegal state" }, 37 { 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)." }, 38 { 0x16, "DMA Error" }, 39 { 0x17, "Reserved." }, 40 { 0x1A, "Job failed due to JR reset" }, 41 { 0x1B, "Job failed due to Fail Mode" }, 42 { 0x1C, "DECO Watchdog timer timeout error" }, 43 { 0x1D, "DECO tried to copy a key from another DECO but the other DECO's Key Registers were locked" }, 44 { 0x1E, "DECO attempted to copy data from a DECO that had an unmasked Descriptor error" }, 45 { 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." }, 46 { 0x20, "DECO has completed a reset initiated via the DRR register" }, 47 { 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." }, 48 { 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)." }, 49 { 0x23, "Read Input Frame error" }, 50 { 0x24, "JDKEK, TDKEK or TDSK not loaded error" }, 51 { 0x80, "DNR (do not run) error" }, 52 { 0x81, "undefined protocol command" }, 53 { 0x82, "invalid setting in PDB" }, 54 { 0x83, "Anti-replay LATE error" }, 55 { 0x84, "Anti-replay REPLAY error" }, 56 { 0x85, "Sequence number overflow" }, 57 { 0x86, "Sigver invalid signature" }, 58 { 0x87, "DSA Sign Illegal test descriptor" }, 59 { 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." }, 60 { 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." }, 61 { 0xC1, "Blob Command error: Undefined mode" }, 62 { 0xC2, "Blob Command error: Secure Memory Blob mode error" }, 63 { 0xC4, "Blob Command error: Black Blob key or input size error" }, 64 { 0xC5, "Blob Command error: Invalid key destination" }, 65 { 0xC8, "Blob Command error: Trusted/Secure mode error" }, 66 { 0xF0, "IPsec TTL or hop limit field either came in as 0, or was decremented to 0" }, 67 { 0xF1, "3GPP HFN matches or exceeds the Threshold" }, 68 }; 69 70 static const char * const cha_id_list[] = { 71 "", 72 "AES", 73 "DES", 74 "ARC4", 75 "MDHA", 76 "RNG", 77 "SNOW f8", 78 "Kasumi f8/9", 79 "PKHA", 80 "CRCA", 81 "SNOW f9", 82 "ZUCE", 83 "ZUCA", 84 }; 85 86 static const char * const err_id_list[] = { 87 "No error.", 88 "Mode error.", 89 "Data size error.", 90 "Key size error.", 91 "PKHA A memory size error.", 92 "PKHA B memory size error.", 93 "Data arrived out of sequence error.", 94 "PKHA divide-by-zero error.", 95 "PKHA modulus even error.", 96 "DES key parity error.", 97 "ICV check failed.", 98 "Hardware error.", 99 "Unsupported CCM AAD size.", 100 "Class 1 CHA is not reset", 101 "Invalid CHA combination was selected", 102 "Invalid CHA selected.", 103 }; 104 105 static const char * const rng_err_id_list[] = { 106 "", 107 "", 108 "", 109 "Instantiate", 110 "Not instantiated", 111 "Test instantiate", 112 "Prediction resistance", 113 "Prediction resistance and test request", 114 "Uninstantiate", 115 "Secure key generation", 116 }; 117 118 static void report_ccb_status(struct device *jrdev, const u32 status, 119 const char *error) 120 { 121 u8 cha_id = (status & JRSTA_CCBERR_CHAID_MASK) >> 122 JRSTA_CCBERR_CHAID_SHIFT; 123 u8 err_id = status & JRSTA_CCBERR_ERRID_MASK; 124 u8 idx = (status & JRSTA_DECOERR_INDEX_MASK) >> 125 JRSTA_DECOERR_INDEX_SHIFT; 126 char *idx_str; 127 const char *cha_str = "unidentified cha_id value 0x"; 128 char cha_err_code[3] = { 0 }; 129 const char *err_str = "unidentified err_id value 0x"; 130 char err_err_code[3] = { 0 }; 131 132 if (status & JRSTA_DECOERR_JUMP) 133 idx_str = "jump tgt desc idx"; 134 else 135 idx_str = "desc idx"; 136 137 if (cha_id < ARRAY_SIZE(cha_id_list)) 138 cha_str = cha_id_list[cha_id]; 139 else 140 snprintf(cha_err_code, sizeof(cha_err_code), "%02x", cha_id); 141 142 if ((cha_id << JRSTA_CCBERR_CHAID_SHIFT) == JRSTA_CCBERR_CHAID_RNG && 143 err_id < ARRAY_SIZE(rng_err_id_list) && 144 strlen(rng_err_id_list[err_id])) { 145 /* RNG-only error */ 146 err_str = rng_err_id_list[err_id]; 147 } else { 148 err_str = err_id_list[err_id]; 149 } 150 151 /* 152 * CCB ICV check failures are part of normal operation life; 153 * we leave the upper layers to do what they want with them. 154 */ 155 if (err_id != JRSTA_CCBERR_ERRID_ICVCHK) 156 dev_err(jrdev, "%08x: %s: %s %d: %s%s: %s%s\n", 157 status, error, idx_str, idx, 158 cha_str, cha_err_code, 159 err_str, err_err_code); 160 } 161 162 static void report_jump_status(struct device *jrdev, const u32 status, 163 const char *error) 164 { 165 dev_err(jrdev, "%08x: %s: %s() not implemented\n", 166 status, error, __func__); 167 } 168 169 static void report_deco_status(struct device *jrdev, const u32 status, 170 const char *error) 171 { 172 u8 err_id = status & JRSTA_DECOERR_ERROR_MASK; 173 u8 idx = (status & JRSTA_DECOERR_INDEX_MASK) >> 174 JRSTA_DECOERR_INDEX_SHIFT; 175 char *idx_str; 176 const char *err_str = "unidentified error value 0x"; 177 char err_err_code[3] = { 0 }; 178 int i; 179 180 if (status & JRSTA_DECOERR_JUMP) 181 idx_str = "jump tgt desc idx"; 182 else 183 idx_str = "desc idx"; 184 185 for (i = 0; i < ARRAY_SIZE(desc_error_list); i++) 186 if (desc_error_list[i].value == err_id) 187 break; 188 189 if (i != ARRAY_SIZE(desc_error_list) && desc_error_list[i].error_text) 190 err_str = desc_error_list[i].error_text; 191 else 192 snprintf(err_err_code, sizeof(err_err_code), "%02x", err_id); 193 194 dev_err(jrdev, "%08x: %s: %s %d: %s%s\n", 195 status, error, idx_str, idx, err_str, err_err_code); 196 } 197 198 static void report_jr_status(struct device *jrdev, const u32 status, 199 const char *error) 200 { 201 dev_err(jrdev, "%08x: %s: %s() not implemented\n", 202 status, error, __func__); 203 } 204 205 static void report_cond_code_status(struct device *jrdev, const u32 status, 206 const char *error) 207 { 208 dev_err(jrdev, "%08x: %s: %s() not implemented\n", 209 status, error, __func__); 210 } 211 212 void caam_jr_strstatus(struct device *jrdev, u32 status) 213 { 214 static const struct stat_src { 215 void (*report_ssed)(struct device *jrdev, const u32 status, 216 const char *error); 217 const char *error; 218 } status_src[16] = { 219 { NULL, "No error" }, 220 { NULL, NULL }, 221 { report_ccb_status, "CCB" }, 222 { report_jump_status, "Jump" }, 223 { report_deco_status, "DECO" }, 224 { NULL, "Queue Manager Interface" }, 225 { report_jr_status, "Job Ring" }, 226 { report_cond_code_status, "Condition Code" }, 227 { NULL, NULL }, 228 { NULL, NULL }, 229 { NULL, NULL }, 230 { NULL, NULL }, 231 { NULL, NULL }, 232 { NULL, NULL }, 233 { NULL, NULL }, 234 { NULL, NULL }, 235 }; 236 u32 ssrc = status >> JRSTA_SSRC_SHIFT; 237 const char *error = status_src[ssrc].error; 238 239 /* 240 * If there is an error handling function, call it to report the error. 241 * Otherwise print the error source name. 242 */ 243 if (status_src[ssrc].report_ssed) 244 status_src[ssrc].report_ssed(jrdev, status, error); 245 else if (error) 246 dev_err(jrdev, "%d: %s\n", ssrc, error); 247 else 248 dev_err(jrdev, "%d: unknown error source\n", ssrc); 249 } 250 EXPORT_SYMBOL(caam_jr_strstatus); 251