diff --git a/drivers/crypto/caam/caamalg.c b/drivers/crypto/caam/caamalg.c index 3c50a5082127..e49373409582 100644 --- a/drivers/crypto/caam/caamalg.c +++ b/drivers/crypto/caam/caamalg.c @@ -87,8 +87,8 @@ #define DESC_GCM_DEC_LEN (DESC_GCM_BASE + 12 * CAAM_CMD_SZ) #define DESC_RFC4106_BASE (3 * CAAM_CMD_SZ) -#define DESC_RFC4106_ENC_LEN (DESC_RFC4106_BASE + 12 * CAAM_CMD_SZ) -#define DESC_RFC4106_DEC_LEN (DESC_RFC4106_BASE + 12 * CAAM_CMD_SZ) +#define DESC_RFC4106_ENC_LEN (DESC_RFC4106_BASE + 13 * CAAM_CMD_SZ) +#define DESC_RFC4106_DEC_LEN (DESC_RFC4106_BASE + 13 * CAAM_CMD_SZ) #define DESC_RFC4543_BASE (3 * CAAM_CMD_SZ) #define DESC_RFC4543_ENC_LEN (DESC_RFC4543_BASE + 11 * CAAM_CMD_SZ) @@ -989,19 +989,22 @@ static int rfc4106_set_sh_desc(struct crypto_aead *aead) /* Will read cryptlen bytes */ append_math_sub(desc, VARSEQINLEN, SEQINLEN, REG0, CAAM_CMD_SZ); - /* Read payload data */ - append_seq_fifo_load(desc, 0, FIFOLD_CLASS_CLASS1 | FIFOLDST_VLF | - FIFOLD_TYPE_MSG | FIFOLD_TYPE_LAST1); + /* Workaround for erratum A-005473 (simultaneous SEQ FIFO skips) */ + append_seq_fifo_load(desc, 0, FIFOLD_CLASS_CLASS1 | FIFOLD_TYPE_MSG); /* Skip assoc data */ append_seq_fifo_store(desc, 0, FIFOST_TYPE_SKIP | FIFOLDST_VLF); /* cryptlen = seqoutlen - assoclen */ - append_math_sub(desc, VARSEQOUTLEN, SEQINLEN, REG0, CAAM_CMD_SZ); + append_math_sub(desc, VARSEQOUTLEN, VARSEQINLEN, REG0, CAAM_CMD_SZ); /* Write encrypted data */ append_seq_fifo_store(desc, 0, FIFOST_TYPE_MESSAGE_DATA | FIFOLDST_VLF); + /* Read payload data */ + append_seq_fifo_load(desc, 0, FIFOLD_CLASS_CLASS1 | FIFOLDST_VLF | + FIFOLD_TYPE_MSG | FIFOLD_TYPE_LAST1); + /* Write ICV */ append_seq_store(desc, ctx->authsize, LDST_CLASS_1_CCB | LDST_SRCDST_BYTE_CONTEXT); @@ -1060,9 +1063,8 @@ static int rfc4106_set_sh_desc(struct crypto_aead *aead) /* Will read cryptlen bytes */ append_math_sub(desc, VARSEQINLEN, SEQOUTLEN, REG3, CAAM_CMD_SZ); - /* Read encrypted data */ - append_seq_fifo_load(desc, 0, FIFOLD_CLASS_CLASS1 | FIFOLDST_VLF | - FIFOLD_TYPE_MSG | FIFOLD_TYPE_FLUSH1); + /* Workaround for erratum A-005473 (simultaneous SEQ FIFO skips) */ + append_seq_fifo_load(desc, 0, FIFOLD_CLASS_CLASS1 | FIFOLD_TYPE_MSG); /* Skip assoc data */ append_seq_fifo_store(desc, 0, FIFOST_TYPE_SKIP | FIFOLDST_VLF); @@ -1073,6 +1075,10 @@ static int rfc4106_set_sh_desc(struct crypto_aead *aead) /* Store payload data */ append_seq_fifo_store(desc, 0, FIFOST_TYPE_MESSAGE_DATA | FIFOLDST_VLF); + /* Read encrypted data */ + append_seq_fifo_load(desc, 0, FIFOLD_CLASS_CLASS1 | FIFOLDST_VLF | + FIFOLD_TYPE_MSG | FIFOLD_TYPE_FLUSH1); + /* Read ICV */ append_seq_fifo_load(desc, ctx->authsize, FIFOLD_CLASS_CLASS1 | FIFOLD_TYPE_ICV | FIFOLD_TYPE_LAST1);