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-rw-r--r--drivers/crypto/caam/error.c248
1 files changed, 248 insertions, 0 deletions
diff --git a/drivers/crypto/caam/error.c b/drivers/crypto/caam/error.c
new file mode 100644
index 0000000..7e2d54b
--- /dev/null
+++ b/drivers/crypto/caam/error.c
@@ -0,0 +1,248 @@
+/*
+ * 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)
+{
+ char *cha_id_list[] = {
+ "",
+ "AES",
+ "DES, 3DES",
+ "ARC4",
+ "MD5, SHA-1, SH-224, SHA-256, SHA-384, SHA-512",
+ "RNG",
+ "SNOW f8",
+ "Kasumi f8, f9",
+ "All Public Key Algorithms",
+ "CRC",
+ "SNOW f9",
+ };
+ char *err_id_list[] = {
+ "None. 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.",
+ };
+ 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 (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)
+{
+ const struct {
+ u8 value;
+ char *error_text;
+ } desc_error_list[] = {
+ { 0x00, "None. No error." },
+ { 0x01, "SGT Length Error. The descriptor is trying to read "
+ "more data than is contained in the SGT table." },
+ { 0x02, "Reserved." },
+ { 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 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)." },
+ { 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)
+{
+ 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);
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