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