/* * CAAM Error Reporting * * Copyright 2009-2011 Freescale Semiconductor, Inc. */ #include "compat.h"#include "regs.h"#include "intern.h"#include "desc.h"#include "jr.h"#include "error.h" #define SPRINTFCAT(str, format, param, max_alloc)		\{								\	char *tmp;						\								\	tmp = kmalloc(sizeof(format) + max_alloc, GFP_ATOMIC);	\	sprintf(tmp, format, param);				\	strcat(str, tmp);					\	kfree(tmp);						\} static void report_jump_idx(u32 status, char *outstr){	u8 idx = (status & JRSTA_DECOERR_INDEX_MASK) >>		  JRSTA_DECOERR_INDEX_SHIFT; 	if (status & JRSTA_DECOERR_JUMP)		strcat(outstr, "jump tgt desc idx ");	else		strcat(outstr, "desc idx "); 	SPRINTFCAT(outstr, "%d: ", idx, sizeof("255"));} static void report_ccb_status(u32 status, char *outstr){	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",	};	u8 cha_id = (status & JRSTA_CCBERR_CHAID_MASK) >>		    JRSTA_CCBERR_CHAID_SHIFT;	u8 err_id = status & JRSTA_CCBERR_ERRID_MASK; 	report_jump_idx(status, outstr); 	if (cha_id < ARRAY_SIZE(cha_id_list)) {		SPRINTFCAT(outstr, "%s: ", cha_id_list[cha_id],			   strlen(cha_id_list[cha_id]));	} else {		SPRINTFCAT(outstr, "unidentified cha_id value 0x%02x: ",			   cha_id, sizeof("ff"));	} 	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 */		SPRINTFCAT(outstr, "%s", rng_err_id_list[err_id],			   strlen(rng_err_id_list[err_id]));	} else if (err_id < ARRAY_SIZE(err_id_list)) {		SPRINTFCAT(outstr, "%s", err_id_list[err_id],			   strlen(err_id_list[err_id]));	} else {		SPRINTFCAT(outstr, "unidentified err_id value 0x%02x",			   err_id, sizeof("ff"));	}} static void report_jump_status(u32 status, char *outstr){	SPRINTFCAT(outstr, "%s() not implemented", __func__, sizeof(__func__));} static void report_deco_status(u32 status, char *outstr){	static const struct {		u8 value;		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" },	};	u8 desc_error = status & JRSTA_DECOERR_ERROR_MASK;	int i; 	report_jump_idx(status, outstr); 	for (i = 0; i < ARRAY_SIZE(desc_error_list); i++)		if (desc_error_list[i].value == desc_error)			break; 	if (i != ARRAY_SIZE(desc_error_list) && desc_error_list[i].error_text) {		SPRINTFCAT(outstr, "%s", desc_error_list[i].error_text,			   strlen(desc_error_list[i].error_text));	} else {		SPRINTFCAT(outstr, "unidentified error value 0x%02x",			   desc_error, sizeof("ff"));	}} static void report_jr_status(u32 status, char *outstr){	SPRINTFCAT(outstr, "%s() not implemented", __func__, sizeof(__func__));} static void report_cond_code_status(u32 status, char *outstr){	SPRINTFCAT(outstr, "%s() not implemented", __func__, sizeof(__func__));} char *caam_jr_strstatus(char *outstr, u32 status){	static const struct stat_src {		void (*report_ssed)(u32 status, char *outstr);		char *error;	} status_src[] = {		{ NULL, "No error" },		{ NULL, NULL },		{ report_ccb_status, "CCB" },		{ report_jump_status, "Jump" },		{ report_deco_status, "DECO" },		{ NULL, NULL },		{ report_jr_status, "Job Ring" },		{ report_cond_code_status, "Condition Code" },	};	u32 ssrc = status >> JRSTA_SSRC_SHIFT; 	sprintf(outstr, "%s: ", status_src[ssrc].error); 	if (status_src[ssrc].report_ssed)		status_src[ssrc].report_ssed(status, outstr); 	return outstr;}EXPORT_SYMBOL(caam_jr_strstatus);