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| author | Alex Porosanu <alexandru.porosanu@freescale.com> | 2015-05-12 05:09:25 (GMT) |
|---|---|---|
| committer | Honghua Yin <Hong-Hua.Yin@freescale.com> | 2015-05-19 08:02:59 (GMT) |
| commit | 4fdd20544205a52488783479b2da53f3bf51d081 (patch) | |
| tree | 9e54c268899e4f0cba3b2a3ddd527af737a0b96d /drivers/crypto | |
| parent | ffa9ec2473a74f839971ec84f4394820d06e6925 (diff) | |
| download | linux-fsl-qoriq-4fdd20544205a52488783479b2da53f3bf51d081.tar.xz | |
crypto: caam - fix TLS processing for SEC in LE mode
In order to process TLS data that is received in
network byte order, a swap is needed for a SEC
block working in little endian mode. This is done
by using the MOVEB command.
Change-Id: I8290ad7348d9e66169c05eff8bda71e587beb0a9
Signed-off-by: Alex Porosanu <alexandru.porosanu@freescale.com>
Reviewed-on: http://git.am.freescale.net:8181/36369
Tested-by: Review Code-CDREVIEW <CDREVIEW@freescale.com>
Reviewed-by: Tudor-Dan Ambarus <tudor.ambarus@freescale.com>
Reviewed-by: Honghua Yin <Hong-Hua.Yin@freescale.com>
Diffstat (limited to 'drivers/crypto')
| -rw-r--r-- | drivers/crypto/caam/caamalg.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/drivers/crypto/caam/caamalg.c b/drivers/crypto/caam/caamalg.c index e820381..ea44991 100644 --- a/drivers/crypto/caam/caamalg.c +++ b/drivers/crypto/caam/caamalg.c @@ -884,6 +884,10 @@ static int tls_set_sh_desc(struct crypto_aead *aead) /* VSOL = payloadlen + icvlen + padlen */ append_math_add(desc, VARSEQOUTLEN, ZERO, REG3, 4); +#ifdef __LITTLE_ENDIAN + append_moveb(desc, MOVE_WAITCOMP | + MOVE_SRC_MATH0 | MOVE_DEST_MATH0 | 8); +#endif /* update Len field */ append_math_sub(desc, REG0, REG0, REG2, 8); @@ -933,9 +937,15 @@ static int tls_set_sh_desc(struct crypto_aead *aead) * SEQ OUT PTR command, Output Pointer (2 words) and * Output Length into math registers. */ +#ifdef __LITTLE_ENDIAN + append_move(desc, MOVE_WAITCOMP | MOVE_SRC_DESCBUF | + MOVE_DEST_MATH0 | (55 * 4 << MOVE_OFFSET_SHIFT) | + 20); +#else append_move(desc, MOVE_WAITCOMP | MOVE_SRC_DESCBUF | MOVE_DEST_MATH0 | (54 * 4 << MOVE_OFFSET_SHIFT) | 20); +#endif /* Transform SEQ OUT PTR command in SEQ IN PTR command */ append_math_and_imm_u32(desc, REG0, REG0, IMM, ~(CMD_SEQ_IN_PTR ^ CMD_SEQ_OUT_PTR)); @@ -946,9 +956,15 @@ static int tls_set_sh_desc(struct crypto_aead *aead) (4 << LDST_OFFSET_SHIFT)); append_jump(desc, JUMP_TEST_ALL | JUMP_COND_CALM | 1); /* Move the updated fields back to the Job Descriptor */ +#ifdef __LITTLE_ENDIAN + append_move(desc, MOVE_WAITCOMP | MOVE_SRC_MATH0 | + MOVE_DEST_DESCBUF | (55 * 4 << MOVE_OFFSET_SHIFT) | + 24); +#else append_move(desc, MOVE_WAITCOMP | MOVE_SRC_MATH0 | MOVE_DEST_DESCBUF | (54 * 4 << MOVE_OFFSET_SHIFT) | 24); +#endif /* * Read the new SEQ IN PTR command, Input Pointer, Input Length * and then jump back to the next command from the @@ -960,9 +976,15 @@ static int tls_set_sh_desc(struct crypto_aead *aead) * Move the SEQ OUT PTR command, Output Pointer (1 word) and * Output Length into math registers. */ +#ifdef __LITTLE_ENDIAN + append_move(desc, MOVE_WAITCOMP | MOVE_SRC_DESCBUF | + MOVE_DEST_MATH0 | (54 * 4 << MOVE_OFFSET_SHIFT) | + 12); +#else append_move(desc, MOVE_WAITCOMP | MOVE_SRC_DESCBUF | MOVE_DEST_MATH0 | (53 * 4 << MOVE_OFFSET_SHIFT) | 12); +#endif /* Transform SEQ OUT PTR command in SEQ IN PTR command */ append_math_and_imm_u64(desc, REG0, REG0, IMM, ~(((u64)(CMD_SEQ_IN_PTR ^ CMD_SEQ_OUT_PTR)) << 32)); @@ -973,9 +995,15 @@ static int tls_set_sh_desc(struct crypto_aead *aead) (4 << LDST_OFFSET_SHIFT)); append_jump(desc, JUMP_TEST_ALL | JUMP_COND_CALM | 1); /* Move the updated fields back to the Job Descriptor */ +#ifdef __LITTLE_ENDIAN + append_move(desc, MOVE_WAITCOMP | MOVE_SRC_MATH0 | + MOVE_DEST_DESCBUF | (54 * 4 << MOVE_OFFSET_SHIFT) | + 16); +#else append_move(desc, MOVE_WAITCOMP | MOVE_SRC_MATH0 | MOVE_DEST_DESCBUF | (53 * 4 << MOVE_OFFSET_SHIFT) | 16); +#endif /* * Read the new SEQ IN PTR command, Input Pointer, Input Length * and then jump back to the next command from the |