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			259 lines
		
	
	
		
			7.3 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			259 lines
		
	
	
		
			7.3 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
// 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 2009-2014 Freescale Semiconductor, Inc.
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 *
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 * Derived from error.c file in linux drivers/crypto/caam
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 */
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#include <common.h>
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#include <log.h>
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#include <malloc.h>
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#include "desc.h"
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#include "jr.h"
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#define CAAM_ERROR_STR_MAX 302
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#define JRSTA_SSRC_SHIFT            28
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#define JRSTA_CCBERR_CHAID_MASK     0x00f0
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#define JRSTA_CCBERR_CHAID_SHIFT    4
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#define JRSTA_CCBERR_ERRID_MASK     0x000
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#define JRSTA_CCBERR_CHAID_RNG      (0x05 << JRSTA_CCBERR_CHAID_SHIFT)
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#define JRSTA_DECOERR_JUMP          0x08000000
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#define JRSTA_DECOERR_INDEX_SHIFT   8
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#define JRSTA_DECOERR_INDEX_MASK    0xff00
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#define JRSTA_DECOERR_ERROR_MASK    0x00ff
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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" \
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		" 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. Bad value in Job Ring Control reg." },
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	{ 0x04, "Invalid Descriptor Command." },
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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" },
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	{ 0x0E, "Invalid MATH Command" },
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	{ 0x0F, "Invalid SIGNATURE Command" },
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	{ 0x10, "Invalid Sequence Command" },
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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 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" },
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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" \
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		" the other DECO's Key Registers were locked" },
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	{ 0x1E, "DECO attempted to copy data from a DECO" \
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		"that had an unmasked Descriptor error" },
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	{ 0x1F, "LIODN error" },
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	{ 0x20, "DECO has completed a reset initiated via the DRR register" },
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	{ 0x21, "Nonce error" },
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	{ 0x22, "Meta data is too large (> 511 bytes) for TLS decap" },
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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" },
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	{ 0x89, "Protocol Size Error" },
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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 is 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(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 if (err_id < ARRAY_SIZE(err_id_list)) {
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		err_str = err_id_list[err_id];
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	} else {
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		snprintf(err_err_code, sizeof(err_err_code), "%02x", err_id);
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	}
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	debug("%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(const u32 status,
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			       const char *error)
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{
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	debug("%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(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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	debug("%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(const u32 status,
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			     const char *error)
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{
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	debug("%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(const u32 status,
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				    const char *error)
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{
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	debug("%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(u32 status)
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{
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	static const struct stat_src {
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		void (*report_ssed)(const u32 status,
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				    const char *error);
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		const char *error;
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	} status_src[] = {
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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, NULL },
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		{ report_jr_status, "Job Ring" },
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		{ report_cond_code_status, "Condition Code" },
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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 no further error handling function, just
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	 * print the error code, error string and exit. Otherwise
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	 * call the handler function.
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	 */
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	if (!status_src[ssrc].report_ssed)
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		debug("%08x: %s:\n", status, status_src[ssrc].error);
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	else
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		status_src[ssrc].report_ssed(status, error);
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}
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