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crypto: chcr - Set hmac_ctrl bit to use HW register HMAC_CFG[456]

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Use hmac_ctrl bit value saved in setauthsize callback.

Signed-off-by: Harsh Jain <harsh@chelsio.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Harsh Jain 2017-04-10 18:23:59 +05:30 committed by Herbert Xu
parent e29abda591
commit 0a7bd30c1b
1 changed files with 5 additions and 19 deletions
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24
drivers/crypto/chelsio/chcr_algo.c
View file

@ -1335,19 +1335,6 @@ static int chcr_copy_assoc(struct aead_request *req,
return crypto_skcipher_encrypt(skreq);
}
static unsigned char get_hmac(unsigned int authsize)
{
switch (authsize) {
case ICV_8:
return CHCR_SCMD_HMAC_CTRL_PL1;
case ICV_10:
return CHCR_SCMD_HMAC_CTRL_TRUNC_RFC4366;
case ICV_12:
return CHCR_SCMD_HMAC_CTRL_IPSEC_96BIT;
}
return CHCR_SCMD_HMAC_CTRL_NO_TRUNC;
}
static struct sk_buff *create_authenc_wr(struct aead_request *req,
unsigned short qid,
@ -1600,13 +1587,13 @@ static void fill_sec_cpl_for_aead(struct cpl_tx_sec_pdu *sec_cpl,
struct chcr_context *chcrctx)
{
struct crypto_aead *tfm = crypto_aead_reqtfm(req);
struct chcr_aead_ctx *aeadctx = AEAD_CTX(crypto_aead_ctx(tfm));
unsigned int ivsize = AES_BLOCK_SIZE;
unsigned int cipher_mode = CHCR_SCMD_CIPHER_MODE_AES_CCM;
unsigned int mac_mode = CHCR_SCMD_AUTH_MODE_CBCMAC;
unsigned int c_id = chcrctx->dev->rx_channel_id;
unsigned int ccm_xtra;
unsigned char tag_offset = 0, auth_offset = 0;
unsigned char hmac_ctrl = get_hmac(crypto_aead_authsize(tfm));
unsigned int assoclen;
if (get_aead_subtype(tfm) == CRYPTO_ALG_SUB_TYPE_AEAD_RFC4309)
@ -1642,8 +1629,8 @@ static void fill_sec_cpl_for_aead(struct cpl_tx_sec_pdu *sec_cpl,
crypto_aead_authsize(tfm));
sec_cpl->seqno_numivs = FILL_SEC_CPL_SCMD0_SEQNO(op_type,
(op_type == CHCR_ENCRYPT_OP) ? 0 : 1,
cipher_mode, mac_mode, hmac_ctrl,
ivsize >> 1);
cipher_mode, mac_mode,
aeadctx->hmac_ctrl, ivsize >> 1);
sec_cpl->ivgen_hdrlen = FILL_SEC_CPL_IVGEN_HDRLEN(0, 0, 1, 0,
1, dst_size);
@ -1820,7 +1807,6 @@ static struct sk_buff *create_gcm_wr(struct aead_request *req,
unsigned char tag_offset = 0;
unsigned int crypt_len = 0;
unsigned int authsize = crypto_aead_authsize(tfm);
unsigned char hmac_ctrl = get_hmac(authsize);
int err = 0;
gfp_t flags = req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP ? GFP_KERNEL :
GFP_ATOMIC;
@ -1893,8 +1879,8 @@ static struct sk_buff *create_gcm_wr(struct aead_request *req,
FILL_SEC_CPL_SCMD0_SEQNO(op_type, (op_type ==
CHCR_ENCRYPT_OP) ? 1 : 0,
CHCR_SCMD_CIPHER_MODE_AES_GCM,
CHCR_SCMD_AUTH_MODE_GHASH, hmac_ctrl,
ivsize >> 1);
CHCR_SCMD_AUTH_MODE_GHASH,
aeadctx->hmac_ctrl, ivsize >> 1);
} else {
chcr_req->sec_cpl.cipherstop_lo_authinsert =
FILL_SEC_CPL_AUTHINSERT(0, 0, 0, 0);