| // SPDX-License-Identifier: GPL-2.0 |
| /* |
| * CAAM Error Reporting |
| * |
| * Copyright 2009-2011 Freescale Semiconductor, Inc. |
| */ |
| |
| #include "compat.h" |
| #include "regs.h" |
| #include "desc.h" |
| #include "error.h" |
| |
| #ifdef DEBUG |
| #include <linux/highmem.h> |
| |
| void caam_dump_sg(const char *level, const char *prefix_str, int prefix_type, |
| int rowsize, int groupsize, struct scatterlist *sg, |
| size_t tlen, bool ascii) |
| { |
| struct scatterlist *it; |
| void *it_page; |
| size_t len; |
| void *buf; |
| |
| for (it = sg; it && tlen > 0 ; it = sg_next(sg)) { |
| /* |
| * make sure the scatterlist's page |
| * has a valid virtual memory mapping |
| */ |
| it_page = kmap_atomic(sg_page(it)); |
| if (unlikely(!it_page)) { |
| pr_err("caam_dump_sg: kmap failed\n"); |
| return; |
| } |
| |
| buf = it_page + it->offset; |
| len = min_t(size_t, tlen, it->length); |
| print_hex_dump(level, prefix_str, prefix_type, rowsize, |
| groupsize, buf, len, ascii); |
| tlen -= len; |
| |
| kunmap_atomic(it_page); |
| } |
| } |
| #else |
| void caam_dump_sg(const char *level, const char *prefix_str, int prefix_type, |
| int rowsize, int groupsize, struct scatterlist *sg, |
| size_t tlen, bool ascii) |
| {} |
| #endif /* DEBUG */ |
| EXPORT_SYMBOL(caam_dump_sg); |
| |
| static const struct { |
| u8 value; |
| const char *error_text; |
| } desc_error_list[] = { |
| { 0x00, "No error." }, |
| { 0x01, "SGT Length Error. The descriptor is trying to read more data than is contained in the SGT table." }, |
| { 0x02, "SGT Null Entry Error." }, |
| { 0x03, "Job Ring Control Error. There is a bad value in the Job Ring Control register." }, |
| { 0x04, "Invalid Descriptor Command. The Descriptor Command field is invalid." }, |
| { 0x05, "Reserved." }, |
| { 0x06, "Invalid KEY Command" }, |
| { 0x07, "Invalid LOAD Command" }, |
| { 0x08, "Invalid STORE Command" }, |
| { 0x09, "Invalid OPERATION Command" }, |
| { 0x0A, "Invalid FIFO LOAD Command" }, |
| { 0x0B, "Invalid FIFO STORE Command" }, |
| { 0x0C, "Invalid MOVE/MOVE_LEN Command" }, |
| { 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." }, |
| { 0x0E, "Invalid MATH Command" }, |
| { 0x0F, "Invalid SIGNATURE Command" }, |
| { 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." }, |
| { 0x11, "Skip data type invalid. The type must be 0xE or 0xF."}, |
| { 0x12, "Shared Descriptor Header Error" }, |
| { 0x13, "Header Error. Invalid length or parity, or certain other problems." }, |
| { 0x14, "Burster Error. Burster has gotten to an illegal state" }, |
| { 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)." }, |
| { 0x16, "DMA Error" }, |
| { 0x17, "Reserved." }, |
| { 0x1A, "Job failed due to JR reset" }, |
| { 0x1B, "Job failed due to Fail Mode" }, |
| { 0x1C, "DECO Watchdog timer timeout error" }, |
| { 0x1D, "DECO tried to copy a key from another DECO but the other DECO's Key Registers were locked" }, |
| { 0x1E, "DECO attempted to copy data from a DECO that had an unmasked Descriptor error" }, |
| { 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." }, |
| { 0x20, "DECO has completed a reset initiated via the DRR register" }, |
| { 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." }, |
| { 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)." }, |
| { 0x23, "Read Input Frame error" }, |
| { 0x24, "JDKEK, TDKEK or TDSK not loaded error" }, |
| { 0x80, "DNR (do not run) error" }, |
| { 0x81, "undefined protocol command" }, |
| { 0x82, "invalid setting in PDB" }, |
| { 0x83, "Anti-replay LATE error" }, |
| { 0x84, "Anti-replay REPLAY error" }, |
| { 0x85, "Sequence number overflow" }, |
| { 0x86, "Sigver invalid signature" }, |
| { 0x87, "DSA Sign Illegal test descriptor" }, |
| { 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." }, |
| { 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." }, |
| { 0xC1, "Blob Command error: Undefined mode" }, |
| { 0xC2, "Blob Command error: Secure Memory Blob mode error" }, |
| { 0xC4, "Blob Command error: Black Blob key or input size error" }, |
| { 0xC5, "Blob Command error: Invalid key destination" }, |
| { 0xC8, "Blob Command error: Trusted/Secure mode error" }, |
| { 0xF0, "IPsec TTL or hop limit field either came in as 0, or was decremented to 0" }, |
| { 0xF1, "3GPP HFN matches or exceeds the Threshold" }, |
| }; |
| |
| static const char * const cha_id_list[] = { |
| "", |
| "AES", |
| "DES", |
| "ARC4", |
| "MDHA", |
| "RNG", |
| "SNOW f8", |
| "Kasumi f8/9", |
| "PKHA", |
| "CRCA", |
| "SNOW f9", |
| "ZUCE", |
| "ZUCA", |
| }; |
| |
| static const char * const err_id_list[] = { |
| "No error.", |
| "Mode error.", |
| "Data size error.", |
| "Key size error.", |
| "PKHA A memory size error.", |
| "PKHA B memory size error.", |
| "Data arrived out of sequence error.", |
| "PKHA divide-by-zero error.", |
| "PKHA modulus even error.", |
| "DES key parity error.", |
| "ICV check failed.", |
| "Hardware error.", |
| "Unsupported CCM AAD size.", |
| "Class 1 CHA is not reset", |
| "Invalid CHA combination was selected", |
| "Invalid CHA selected.", |
| }; |
| |
| static const char * const rng_err_id_list[] = { |
| "", |
| "", |
| "", |
| "Instantiate", |
| "Not instantiated", |
| "Test instantiate", |
| "Prediction resistance", |
| "Prediction resistance and test request", |
| "Uninstantiate", |
| "Secure key generation", |
| }; |
| |
| #define SPRINTFCAT(str, format, param, max_alloc) \ |
| { \ |
| char *tmp; \ |
| \ |
| tmp = kmalloc(sizeof(format) + max_alloc, GFP_ATOMIC); \ |
| if (likely(tmp)) { \ |
| sprintf(tmp, format, param); \ |
| strcat(str, tmp); \ |
| kfree(tmp); \ |
| } else { \ |
| strcat(str, "kmalloc failure in SPRINTFCAT"); \ |
| } \ |
| } |
| |
| static void report_ccb_status(struct device *jrdev, const u32 status, |
| const char *error) |
| { |
| u8 cha_id = (status & JRSTA_CCBERR_CHAID_MASK) >> |
| JRSTA_CCBERR_CHAID_SHIFT; |
| u8 err_id = status & JRSTA_CCBERR_ERRID_MASK; |
| u8 idx = (status & JRSTA_DECOERR_INDEX_MASK) >> |
| JRSTA_DECOERR_INDEX_SHIFT; |
| char *idx_str; |
| const char *cha_str = "unidentified cha_id value 0x"; |
| char cha_err_code[3] = { 0 }; |
| const char *err_str = "unidentified err_id value 0x"; |
| char err_err_code[3] = { 0 }; |
| |
| if (status & JRSTA_DECOERR_JUMP) |
| idx_str = "jump tgt desc idx"; |
| else |
| idx_str = "desc idx"; |
| |
| if (cha_id < ARRAY_SIZE(cha_id_list)) |
| cha_str = cha_id_list[cha_id]; |
| else |
| snprintf(cha_err_code, sizeof(cha_err_code), "%02x", cha_id); |
| |
| if ((cha_id << JRSTA_CCBERR_CHAID_SHIFT) == JRSTA_CCBERR_CHAID_RNG && |
| err_id < ARRAY_SIZE(rng_err_id_list) && |
| strlen(rng_err_id_list[err_id])) { |
| /* RNG-only error */ |
| err_str = rng_err_id_list[err_id]; |
| } else { |
| err_str = err_id_list[err_id]; |
| } |
| |
| /* |
| * CCB ICV check failures are part of normal operation life; |
| * we leave the upper layers to do what they want with them. |
| */ |
| if (err_id != JRSTA_CCBERR_ERRID_ICVCHK) |
| dev_err(jrdev, "%08x: %s: %s %d: %s%s: %s%s\n", |
| status, error, idx_str, idx, |
| cha_str, cha_err_code, |
| err_str, err_err_code); |
| } |
| |
| static void report_jump_status(struct device *jrdev, const u32 status, |
| const char *error) |
| { |
| dev_err(jrdev, "%08x: %s: %s() not implemented\n", |
| status, error, __func__); |
| } |
| |
| static void report_deco_status(struct device *jrdev, const u32 status, |
| const char *error) |
| { |
| u8 err_id = status & JRSTA_DECOERR_ERROR_MASK; |
| u8 idx = (status & JRSTA_DECOERR_INDEX_MASK) >> |
| JRSTA_DECOERR_INDEX_SHIFT; |
| char *idx_str; |
| const char *err_str = "unidentified error value 0x"; |
| char err_err_code[3] = { 0 }; |
| int i; |
| |
| if (status & JRSTA_DECOERR_JUMP) |
| idx_str = "jump tgt desc idx"; |
| else |
| idx_str = "desc idx"; |
| |
| for (i = 0; i < ARRAY_SIZE(desc_error_list); i++) |
| if (desc_error_list[i].value == err_id) |
| break; |
| |
| if (i != ARRAY_SIZE(desc_error_list) && desc_error_list[i].error_text) |
| err_str = desc_error_list[i].error_text; |
| else |
| snprintf(err_err_code, sizeof(err_err_code), "%02x", err_id); |
| |
| dev_err(jrdev, "%08x: %s: %s %d: %s%s\n", |
| status, error, idx_str, idx, err_str, err_err_code); |
| } |
| |
| static void report_jr_status(struct device *jrdev, const u32 status, |
| const char *error) |
| { |
| dev_err(jrdev, "%08x: %s: %s() not implemented\n", |
| status, error, __func__); |
| } |
| |
| static void report_cond_code_status(struct device *jrdev, const u32 status, |
| const char *error) |
| { |
| dev_err(jrdev, "%08x: %s: %s() not implemented\n", |
| status, error, __func__); |
| } |
| |
| void caam_jr_strstatus(struct device *jrdev, u32 status) |
| { |
| static const struct stat_src { |
| void (*report_ssed)(struct device *jrdev, const u32 status, |
| const char *error); |
| const char *error; |
| } status_src[16] = { |
| { NULL, "No error" }, |
| { NULL, NULL }, |
| { report_ccb_status, "CCB" }, |
| { report_jump_status, "Jump" }, |
| { report_deco_status, "DECO" }, |
| { NULL, "Queue Manager Interface" }, |
| { report_jr_status, "Job Ring" }, |
| { report_cond_code_status, "Condition Code" }, |
| { NULL, NULL }, |
| { NULL, NULL }, |
| { NULL, NULL }, |
| { NULL, NULL }, |
| { NULL, NULL }, |
| { NULL, NULL }, |
| { NULL, NULL }, |
| { NULL, NULL }, |
| }; |
| u32 ssrc = status >> JRSTA_SSRC_SHIFT; |
| const char *error = status_src[ssrc].error; |
| |
| /* |
| * If there is an error handling function, call it to report the error. |
| * Otherwise print the error source name. |
| */ |
| if (status_src[ssrc].report_ssed) |
| status_src[ssrc].report_ssed(jrdev, status, error); |
| else if (error) |
| dev_err(jrdev, "%d: %s\n", ssrc, error); |
| else |
| dev_err(jrdev, "%d: unknown error source\n", ssrc); |
| } |
| EXPORT_SYMBOL(caam_jr_strstatus); |