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path: root/drivers/crypto/caam/caamalg_desc.c
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Diffstat (limited to 'drivers/crypto/caam/caamalg_desc.c')
-rw-r--r--drivers/crypto/caam/caamalg_desc.c28
1 files changed, 17 insertions, 11 deletions
diff --git a/drivers/crypto/caam/caamalg_desc.c b/drivers/crypto/caam/caamalg_desc.c
index d6c58184bb57..7571e1ac913b 100644
--- a/drivers/crypto/caam/caamalg_desc.c
+++ b/drivers/crypto/caam/caamalg_desc.c
@@ -373,6 +373,7 @@ EXPORT_SYMBOL(cnstr_shdsc_aead_encap);
* with OP_ALG_AAI_HMAC_PRECOMP.
* @ivsize: initialization vector size
* @icvsize: integrity check value (ICV) size (truncated or full)
+ * @geniv: whether to generate Encrypted Chain IV
* @is_rfc3686: true when ctr(aes) is wrapped by rfc3686 template
* @nonce: pointer to rfc3686 nonce
* @ctx1_iv_off: IV offset in CONTEXT1 register
@@ -1550,13 +1551,14 @@ void cnstr_shdsc_xts_skcipher_encap(u32 * const desc, struct alginfo *cdata)
set_jump_tgt_here(desc, key_jump_cmd);
/*
- * create sequence for loading the sector index
- * Upper 8B of IV - will be used as sector index
- * Lower 8B of IV - will be discarded
+ * create sequence for loading the sector index / 16B tweak value
+ * Lower 8B of IV - sector index / tweak lower half
+ * Upper 8B of IV - upper half of 16B tweak
*/
append_seq_load(desc, 8, LDST_SRCDST_BYTE_CONTEXT | LDST_CLASS_1_CCB |
(0x20 << LDST_OFFSET_SHIFT));
- append_seq_fifo_load(desc, 8, FIFOLD_CLASS_SKIP);
+ append_seq_load(desc, 8, LDST_SRCDST_BYTE_CONTEXT | LDST_CLASS_1_CCB |
+ (0x30 << LDST_OFFSET_SHIFT));
/* Load operation */
append_operation(desc, cdata->algtype | OP_ALG_AS_INITFINAL |
@@ -1565,9 +1567,11 @@ void cnstr_shdsc_xts_skcipher_encap(u32 * const desc, struct alginfo *cdata)
/* Perform operation */
skcipher_append_src_dst(desc);
- /* Store upper 8B of IV */
+ /* Store lower 8B and upper 8B of IV */
append_seq_store(desc, 8, LDST_SRCDST_BYTE_CONTEXT | LDST_CLASS_1_CCB |
(0x20 << LDST_OFFSET_SHIFT));
+ append_seq_store(desc, 8, LDST_SRCDST_BYTE_CONTEXT | LDST_CLASS_1_CCB |
+ (0x30 << LDST_OFFSET_SHIFT));
print_hex_dump_debug("xts skcipher enc shdesc@" __stringify(__LINE__)
": ", DUMP_PREFIX_ADDRESS, 16, 4,
@@ -1609,23 +1613,25 @@ void cnstr_shdsc_xts_skcipher_decap(u32 * const desc, struct alginfo *cdata)
set_jump_tgt_here(desc, key_jump_cmd);
/*
- * create sequence for loading the sector index
- * Upper 8B of IV - will be used as sector index
- * Lower 8B of IV - will be discarded
+ * create sequence for loading the sector index / 16B tweak value
+ * Lower 8B of IV - sector index / tweak lower half
+ * Upper 8B of IV - upper half of 16B tweak
*/
append_seq_load(desc, 8, LDST_SRCDST_BYTE_CONTEXT | LDST_CLASS_1_CCB |
(0x20 << LDST_OFFSET_SHIFT));
- append_seq_fifo_load(desc, 8, FIFOLD_CLASS_SKIP);
-
+ append_seq_load(desc, 8, LDST_SRCDST_BYTE_CONTEXT | LDST_CLASS_1_CCB |
+ (0x30 << LDST_OFFSET_SHIFT));
/* Load operation */
append_dec_op1(desc, cdata->algtype);
/* Perform operation */
skcipher_append_src_dst(desc);
- /* Store upper 8B of IV */
+ /* Store lower 8B and upper 8B of IV */
append_seq_store(desc, 8, LDST_SRCDST_BYTE_CONTEXT | LDST_CLASS_1_CCB |
(0x20 << LDST_OFFSET_SHIFT));
+ append_seq_store(desc, 8, LDST_SRCDST_BYTE_CONTEXT | LDST_CLASS_1_CCB |
+ (0x30 << LDST_OFFSET_SHIFT));
print_hex_dump_debug("xts skcipher dec shdesc@" __stringify(__LINE__)
": ", DUMP_PREFIX_ADDRESS, 16, 4, desc,