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path: root/drivers/crypto/caam/error.c
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Diffstat (limited to 'drivers/crypto/caam/error.c')
-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 000000000000..bd57a6825f57
--- /dev/null
+++ b/drivers/crypto/caam/error.c
@@ -0,0 +1,248 @@
1/*
2 * CAAM Error Reporting
3 *
4 * Copyright 2009-2011 Freescale Semiconductor, Inc.
5 */
6
7#include "compat.h"
8#include "regs.h"
9#include "intern.h"
10#include "desc.h"
11#include "jr.h"
12#include "error.h"
13
14#define SPRINTFCAT(str, format, param, max_alloc) \
15{ \
16 char *tmp; \
17 \
18 tmp = kmalloc(sizeof(format) + max_alloc, GFP_ATOMIC); \
19 sprintf(tmp, format, param); \
20 strcat(str, tmp); \
21 kfree(tmp); \
22}
23
24static void report_jump_idx(u32 status, char *outstr)
25{
26 u8 idx = (status & JRSTA_DECOERR_INDEX_MASK) >>
27 JRSTA_DECOERR_INDEX_SHIFT;
28
29 if (status & JRSTA_DECOERR_JUMP)
30 strcat(outstr, "jump tgt desc idx ");
31 else
32 strcat(outstr, "desc idx ");
33
34 SPRINTFCAT(outstr, "%d: ", idx, sizeof("255"));
35}
36
37static void report_ccb_status(u32 status, char *outstr)
38{
39 char *cha_id_list[] = {
40 "",
41 "AES",
42 "DES, 3DES",
43 "ARC4",
44 "MD5, SHA-1, SH-224, SHA-256, SHA-384, SHA-512",
45 "RNG",
46 "SNOW f8",
47 "Kasumi f8, f9",
48 "All Public Key Algorithms",
49 "CRC",
50 "SNOW f9",
51 };
52 char *err_id_list[] = {
53 "None. No error.",
54 "Mode error.",
55 "Data size error.",
56 "Key size error.",
57 "PKHA A memory size error.",
58 "PKHA B memory size error.",
59 "Data arrived out of sequence error.",
60 "PKHA divide-by-zero error.",
61 "PKHA modulus even error.",
62 "DES key parity error.",
63 "ICV check failed.",
64 "Hardware error.",
65 "Unsupported CCM AAD size.",
66 "Class 1 CHA is not reset",
67 "Invalid CHA combination was selected",
68 "Invalid CHA selected.",
69 };
70 u8 cha_id = (status & JRSTA_CCBERR_CHAID_MASK) >>
71 JRSTA_CCBERR_CHAID_SHIFT;
72 u8 err_id = status & JRSTA_CCBERR_ERRID_MASK;
73
74 report_jump_idx(status, outstr);
75
76 if (cha_id < sizeof(cha_id_list)) {
77 SPRINTFCAT(outstr, "%s: ", cha_id_list[cha_id],
78 strlen(cha_id_list[cha_id]));
79 } else {
80 SPRINTFCAT(outstr, "unidentified cha_id value 0x%02x: ",
81 cha_id, sizeof("ff"));
82 }
83
84 if (err_id < sizeof(err_id_list)) {
85 SPRINTFCAT(outstr, "%s", err_id_list[err_id],
86 strlen(err_id_list[err_id]));
87 } else {
88 SPRINTFCAT(outstr, "unidentified err_id value 0x%02x",
89 err_id, sizeof("ff"));
90 }
91}
92
93static void report_jump_status(u32 status, char *outstr)
94{
95 SPRINTFCAT(outstr, "%s() not implemented", __func__, sizeof(__func__));
96}
97
98static void report_deco_status(u32 status, char *outstr)
99{
100 const struct {
101 u8 value;
102 char *error_text;
103 } desc_error_list[] = {
104 { 0x00, "None. No error." },
105 { 0x01, "SGT Length Error. The descriptor is trying to read "
106 "more data than is contained in the SGT table." },
107 { 0x02, "Reserved." },
108 { 0x03, "Job Ring Control Error. There is a bad value in the "
109 "Job Ring Control register." },
110 { 0x04, "Invalid Descriptor Command. The Descriptor Command "
111 "field is invalid." },
112 { 0x05, "Reserved." },
113 { 0x06, "Invalid KEY Command" },
114 { 0x07, "Invalid LOAD Command" },
115 { 0x08, "Invalid STORE Command" },
116 { 0x09, "Invalid OPERATION Command" },
117 { 0x0A, "Invalid FIFO LOAD Command" },
118 { 0x0B, "Invalid FIFO STORE Command" },
119 { 0x0C, "Invalid MOVE Command" },
120 { 0x0D, "Invalid JUMP Command. A nonlocal JUMP Command is "
121 "invalid because the target is not a Job Header "
122 "Command, or the jump is from a Trusted Descriptor to "
123 "a Job Descriptor, or because the target Descriptor "
124 "contains a Shared Descriptor." },
125 { 0x0E, "Invalid MATH Command" },
126 { 0x0F, "Invalid SIGNATURE Command" },
127 { 0x10, "Invalid Sequence Command. A SEQ IN PTR OR SEQ OUT PTR "
128 "Command is invalid or a SEQ KEY, SEQ LOAD, SEQ FIFO "
129 "LOAD, or SEQ FIFO STORE decremented the input or "
130 "output sequence length below 0. This error may result "
131 "if a built-in PROTOCOL Command has encountered a "
132 "malformed PDU." },
133 { 0x11, "Skip data type invalid. The type must be 0xE or 0xF."},
134 { 0x12, "Shared Descriptor Header Error" },
135 { 0x13, "Header Error. Invalid length or parity, or certain "
136 "other problems." },
137 { 0x14, "Burster Error. Burster has gotten to an illegal "
138 "state" },
139 { 0x15, "Context Register Length Error. The descriptor is "
140 "trying to read or write past the end of the Context "
141 "Register. A SEQ LOAD or SEQ STORE with the VLF bit "
142 "set was executed with too large a length in the "
143 "variable length register (VSOL for SEQ STORE or VSIL "
144 "for SEQ LOAD)." },
145 { 0x16, "DMA Error" },
146 { 0x17, "Reserved." },
147 { 0x1A, "Job failed due to JR reset" },
148 { 0x1B, "Job failed due to Fail Mode" },
149 { 0x1C, "DECO Watchdog timer timeout error" },
150 { 0x1D, "DECO tried to copy a key from another DECO but the "
151 "other DECO's Key Registers were locked" },
152 { 0x1E, "DECO attempted to copy data from a DECO that had an "
153 "unmasked Descriptor error" },
154 { 0x1F, "LIODN error. DECO was trying to share from itself or "
155 "from another DECO but the two Non-SEQ LIODN values "
156 "didn't match or the 'shared from' DECO's Descriptor "
157 "required that the SEQ LIODNs be the same and they "
158 "aren't." },
159 { 0x20, "DECO has completed a reset initiated via the DRR "
160 "register" },
161 { 0x21, "Nonce error. When using EKT (CCM) key encryption "
162 "option in the FIFO STORE Command, the Nonce counter "
163 "reached its maximum value and this encryption mode "
164 "can no longer be used." },
165 { 0x22, "Meta data is too large (> 511 bytes) for TLS decap "
166 "(input frame; block ciphers) and IPsec decap (output "
167 "frame, when doing the next header byte update) and "
168 "DCRC (output frame)." },
169 { 0x80, "DNR (do not run) error" },
170 { 0x81, "undefined protocol command" },
171 { 0x82, "invalid setting in PDB" },
172 { 0x83, "Anti-replay LATE error" },
173 { 0x84, "Anti-replay REPLAY error" },
174 { 0x85, "Sequence number overflow" },
175 { 0x86, "Sigver invalid signature" },
176 { 0x87, "DSA Sign Illegal test descriptor" },
177 { 0x88, "Protocol Format Error - A protocol has seen an error "
178 "in the format of data received. When running RSA, "
179 "this means that formatting with random padding was "
180 "used, and did not follow the form: 0x00, 0x02, 8-to-N "
181 "bytes of non-zero pad, 0x00, F data." },
182 { 0x89, "Protocol Size Error - A protocol has seen an error in "
183 "size. When running RSA, pdb size N < (size of F) when "
184 "no formatting is used; or pdb size N < (F + 11) when "
185 "formatting is used." },
186 { 0xC1, "Blob Command error: Undefined mode" },
187 { 0xC2, "Blob Command error: Secure Memory Blob mode error" },
188 { 0xC4, "Blob Command error: Black Blob key or input size "
189 "error" },
190 { 0xC5, "Blob Command error: Invalid key destination" },
191 { 0xC8, "Blob Command error: Trusted/Secure mode error" },
192 { 0xF0, "IPsec TTL or hop limit field either came in as 0, "
193 "or was decremented to 0" },
194 { 0xF1, "3GPP HFN matches or exceeds the Threshold" },
195 };
196 u8 desc_error = status & JRSTA_DECOERR_ERROR_MASK;
197 int i;
198
199 report_jump_idx(status, outstr);
200
201 for (i = 0; i < sizeof(desc_error_list); i++)
202 if (desc_error_list[i].value == desc_error)
203 break;
204
205 if (i != sizeof(desc_error_list) && desc_error_list[i].error_text) {
206 SPRINTFCAT(outstr, "%s", desc_error_list[i].error_text,
207 strlen(desc_error_list[i].error_text));
208 } else {
209 SPRINTFCAT(outstr, "unidentified error value 0x%02x",
210 desc_error, sizeof("ff"));
211 }
212}
213
214static void report_jr_status(u32 status, char *outstr)
215{
216 SPRINTFCAT(outstr, "%s() not implemented", __func__, sizeof(__func__));
217}
218
219static void report_cond_code_status(u32 status, char *outstr)
220{
221 SPRINTFCAT(outstr, "%s() not implemented", __func__, sizeof(__func__));
222}
223
224char *caam_jr_strstatus(char *outstr, u32 status)
225{
226 struct stat_src {
227 void (*report_ssed)(u32 status, char *outstr);
228 char *error;
229 } status_src[] = {
230 { NULL, "No error" },
231 { NULL, NULL },
232 { report_ccb_status, "CCB" },
233 { report_jump_status, "Jump" },
234 { report_deco_status, "DECO" },
235 { NULL, NULL },
236 { report_jr_status, "Job Ring" },
237 { report_cond_code_status, "Condition Code" },
238 };
239 u32 ssrc = status >> JRSTA_SSRC_SHIFT;
240
241 sprintf(outstr, "%s: ", status_src[ssrc].error);
242
243 if (status_src[ssrc].report_ssed)
244 status_src[ssrc].report_ssed(status, outstr);
245
246 return outstr;
247}
248EXPORT_SYMBOL(caam_jr_strstatus);
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-14 17:41:06 -0500