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crypto: chelsio - Use kernel round function to align lengths 

Replace DIV_ROUND_UP to roundup or rounddown

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 2018-03-06 10:37:48 +05:30 коммит произвёл Herbert Xu
Родитель a6ab6402c4
Коммит 125d01caae
2 изменённых файлов: 34 добавлений и 40 удалений
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73
drivers/crypto/chelsio/chcr_algo.c
Просмотреть файл

@ -784,14 +784,14 @@ static struct sk_buff *create_cipher_wr(struct cipher_wr_param *wrparam)
nents = sg_nents_xlen(reqctx->dstsg, wrparam->bytes, CHCR_DST_SG_SIZE,
reqctx->dst_ofst);
dst_size = get_space_for_phys_dsgl(nents + 1);
kctx_len = (DIV_ROUND_UP(ablkctx->enckey_len, 16) * 16);
kctx_len = roundup(ablkctx->enckey_len, 16);
transhdr_len = CIPHER_TRANSHDR_SIZE(kctx_len, dst_size);
nents = sg_nents_xlen(reqctx->srcsg, wrparam->bytes,
CHCR_SRC_SG_SIZE, reqctx->src_ofst);
temp = reqctx->imm ? (DIV_ROUND_UP((IV + wrparam->req->nbytes), 16)
* 16) : (sgl_len(nents + MIN_CIPHER_SG) * 8);
temp = reqctx->imm ? roundup(IV + wrparam->req->nbytes, 16) :
(sgl_len(nents + MIN_CIPHER_SG) * 8);
transhdr_len += temp;
transhdr_len = DIV_ROUND_UP(transhdr_len, 16) * 16;
transhdr_len = roundup(transhdr_len, 16);
skb = alloc_skb(SGE_MAX_WR_LEN, flags);
if (!skb) {
error = -ENOMEM;
@ -1148,7 +1148,7 @@ static int chcr_handle_cipher_resp(struct ablkcipher_request *req,
if ((bytes + reqctx->processed) >= req->nbytes)
bytes = req->nbytes - reqctx->processed;
else
bytes = ROUND_16(bytes);
bytes = rounddown(bytes, 16);
} else {
/*CTR mode counter overfloa*/
bytes = req->nbytes - reqctx->processed;
@ -1234,7 +1234,7 @@ static int process_cipher(struct ablkcipher_request *req,
CHCR_DST_SG_SIZE, 0);
dnents += 1; // IV
phys_dsgl = get_space_for_phys_dsgl(dnents);
kctx_len = (DIV_ROUND_UP(ablkctx->enckey_len, 16) * 16);
kctx_len = roundup(ablkctx->enckey_len, 16);
transhdr_len = CIPHER_TRANSHDR_SIZE(kctx_len, phys_dsgl);
reqctx->imm = (transhdr_len + IV + req->nbytes) <=
SGE_MAX_WR_LEN;
@ -1252,7 +1252,7 @@ static int process_cipher(struct ablkcipher_request *req,
if ((bytes + reqctx->processed) >= req->nbytes)
bytes = req->nbytes - reqctx->processed;
else
bytes = ROUND_16(bytes);
bytes = rounddown(bytes, 16);
} else {
bytes = req->nbytes;
}
@ -1526,10 +1526,10 @@ static struct sk_buff *create_hash_wr(struct ahash_request *req,
SGE_MAX_WR_LEN;
nents = sg_nents_xlen(req->src, param->sg_len, CHCR_SRC_SG_SIZE, 0);
nents += param->bfr_len ? 1 : 0;
transhdr_len += req_ctx->imm ? (DIV_ROUND_UP((param->bfr_len +
param->sg_len), 16) * 16) :
transhdr_len += req_ctx->imm ? roundup((param->bfr_len +
param->sg_len), 16) :
(sgl_len(nents) * 8);
transhdr_len = DIV_ROUND_UP(transhdr_len, 16) * 16;
transhdr_len = roundup(transhdr_len, 16);
skb = alloc_skb(SGE_MAX_WR_LEN, flags);
if (!skb)
@ -2124,11 +2124,11 @@ static struct sk_buff *create_authenc_wr(struct aead_request *req,
transhdr_len = CIPHER_TRANSHDR_SIZE(kctx_len, dst_size);
reqctx->imm = (transhdr_len + assoclen + IV + req->cryptlen) <
SGE_MAX_WR_LEN;
temp = reqctx->imm ? (DIV_ROUND_UP((assoclen + IV + req->cryptlen), 16)
* 16) : (sgl_len(reqctx->src_nents + reqctx->aad_nents
temp = reqctx->imm ? roundup(assoclen + IV + req->cryptlen, 16)
: (sgl_len(reqctx->src_nents + reqctx->aad_nents
+ MIN_GCM_SG) * 8);
transhdr_len += temp;
transhdr_len = DIV_ROUND_UP(transhdr_len, 16) * 16;
transhdr_len = roundup(transhdr_len, 16);
if (chcr_aead_need_fallback(req, dnents, T6_MAX_AAD_SIZE,
transhdr_len, op_type)) {
@ -2187,9 +2187,8 @@ static struct sk_buff *create_authenc_wr(struct aead_request *req,
memcpy(chcr_req->key_ctx.key, actx->dec_rrkey,
aeadctx->enckey_len);
memcpy(chcr_req->key_ctx.key + (DIV_ROUND_UP(aeadctx->enckey_len, 16) <<
4), actx->h_iopad, kctx_len -
(DIV_ROUND_UP(aeadctx->enckey_len, 16) << 4));
memcpy(chcr_req->key_ctx.key + roundup(aeadctx->enckey_len, 16),
actx->h_iopad, kctx_len - roundup(aeadctx->enckey_len, 16));
if (subtype == CRYPTO_ALG_SUB_TYPE_CTR_SHA ||
subtype == CRYPTO_ALG_SUB_TYPE_CTR_NULL) {
memcpy(reqctx->iv, aeadctx->nonce, CTR_RFC3686_NONCE_SIZE);
@ -2696,16 +2695,16 @@ static struct sk_buff *create_aead_ccm_wr(struct aead_request *req,
CHCR_DST_SG_SIZE, req->assoclen);
dnents += MIN_CCM_SG; // For IV and B0
dst_size = get_space_for_phys_dsgl(dnents);
kctx_len = ((DIV_ROUND_UP(aeadctx->enckey_len, 16)) << 4) * 2;
kctx_len = roundup(aeadctx->enckey_len, 16) * 2;
transhdr_len = CIPHER_TRANSHDR_SIZE(kctx_len, dst_size);
reqctx->imm = (transhdr_len + assoclen + IV + req->cryptlen +
reqctx->b0_len) <= SGE_MAX_WR_LEN;
temp = reqctx->imm ? (DIV_ROUND_UP((assoclen + IV + req->cryptlen +
reqctx->b0_len), 16) * 16) :
temp = reqctx->imm ? roundup(assoclen + IV + req->cryptlen +
reqctx->b0_len, 16) :
(sgl_len(reqctx->src_nents + reqctx->aad_nents +
MIN_CCM_SG) * 8);
transhdr_len += temp;
transhdr_len = DIV_ROUND_UP(transhdr_len, 16) * 16;
transhdr_len = roundup(transhdr_len, 16);
if (chcr_aead_need_fallback(req, dnents, T6_MAX_AAD_SIZE -
reqctx->b0_len, transhdr_len, op_type)) {
@ -2727,8 +2726,8 @@ static struct sk_buff *create_aead_ccm_wr(struct aead_request *req,
chcr_req->key_ctx.ctx_hdr = aeadctx->key_ctx_hdr;
memcpy(chcr_req->key_ctx.key, aeadctx->key, aeadctx->enckey_len);
memcpy(chcr_req->key_ctx.key + (DIV_ROUND_UP(aeadctx->enckey_len, 16) *
16), aeadctx->key, aeadctx->enckey_len);
memcpy(chcr_req->key_ctx.key + roundup(aeadctx->enckey_len, 16),
aeadctx->key, aeadctx->enckey_len);
phys_cpl = (struct cpl_rx_phys_dsgl *)((u8 *)(chcr_req + 1) + kctx_len);
ulptx = (struct ulptx_sgl *)((u8 *)(phys_cpl + 1) + dst_size);
@ -2798,16 +2797,15 @@ static struct sk_buff *create_gcm_wr(struct aead_request *req,
CHCR_DST_SG_SIZE, req->assoclen);
dnents += MIN_GCM_SG; // For IV
dst_size = get_space_for_phys_dsgl(dnents);
kctx_len = ((DIV_ROUND_UP(aeadctx->enckey_len, 16)) << 4) +
AEAD_H_SIZE;
kctx_len = roundup(aeadctx->enckey_len, 16) + AEAD_H_SIZE;
transhdr_len = CIPHER_TRANSHDR_SIZE(kctx_len, dst_size);
reqctx->imm = (transhdr_len + assoclen + IV + req->cryptlen) <=
SGE_MAX_WR_LEN;
temp = reqctx->imm ? (DIV_ROUND_UP((assoclen + IV +
req->cryptlen), 16) * 16) : (sgl_len(reqctx->src_nents +
reqctx->aad_nents + MIN_GCM_SG) * 8);
temp = reqctx->imm ? roundup(assoclen + IV + req->cryptlen, 16) :
(sgl_len(reqctx->src_nents +
reqctx->aad_nents + MIN_GCM_SG) * 8);
transhdr_len += temp;
transhdr_len = DIV_ROUND_UP(transhdr_len, 16) * 16;
transhdr_len = roundup(transhdr_len, 16);
if (chcr_aead_need_fallback(req, dnents, T6_MAX_AAD_SIZE,
transhdr_len, op_type)) {
atomic_inc(&adap->chcr_stats.fallback);
@ -2846,8 +2844,8 @@ static struct sk_buff *create_gcm_wr(struct aead_request *req,
0, 0, dst_size);
chcr_req->key_ctx.ctx_hdr = aeadctx->key_ctx_hdr;
memcpy(chcr_req->key_ctx.key, aeadctx->key, aeadctx->enckey_len);
memcpy(chcr_req->key_ctx.key + (DIV_ROUND_UP(aeadctx->enckey_len, 16) *
16), GCM_CTX(aeadctx)->ghash_h, AEAD_H_SIZE);
memcpy(chcr_req->key_ctx.key + roundup(aeadctx->enckey_len, 16),
GCM_CTX(aeadctx)->ghash_h, AEAD_H_SIZE);
/* prepare a 16 byte iv */
/* S A L T | IV | 0x00000001 */
@ -3067,11 +3065,10 @@ static int chcr_ccm_common_setkey(struct crypto_aead *aead,
unsigned char ck_size, mk_size;
int key_ctx_size = 0;
key_ctx_size = sizeof(struct _key_ctx) +
((DIV_ROUND_UP(keylen, 16)) << 4) * 2;
key_ctx_size = sizeof(struct _key_ctx) + roundup(keylen, 16) * 2;
if (keylen == AES_KEYSIZE_128) {
mk_size = CHCR_KEYCTX_CIPHER_KEY_SIZE_128;
ck_size = CHCR_KEYCTX_CIPHER_KEY_SIZE_128;
mk_size = CHCR_KEYCTX_MAC_KEY_SIZE_128;
} else if (keylen == AES_KEYSIZE_192) {
ck_size = CHCR_KEYCTX_CIPHER_KEY_SIZE_192;
mk_size = CHCR_KEYCTX_MAC_KEY_SIZE_192;
@ -3178,10 +3175,9 @@ static int chcr_gcm_setkey(struct crypto_aead *aead, const u8 *key,
memcpy(aeadctx->key, key, keylen);
aeadctx->enckey_len = keylen;
key_ctx_size = sizeof(struct _key_ctx) +
((DIV_ROUND_UP(keylen, 16)) << 4) +
key_ctx_size = sizeof(struct _key_ctx) + roundup(keylen, 16) +
AEAD_H_SIZE;
aeadctx->key_ctx_hdr = FILL_KEY_CTX_HDR(ck_size,
aeadctx->key_ctx_hdr = FILL_KEY_CTX_HDR(ck_size,
CHCR_KEYCTX_MAC_KEY_SIZE_128,
0, 0,
key_ctx_size >> 4);
@ -3325,7 +3321,7 @@ static int chcr_authenc_setkey(struct crypto_aead *authenc, const u8 *key,
chcr_change_order(actx->h_iopad, param.result_size);
chcr_change_order(o_ptr, param.result_size);
key_ctx_len = sizeof(struct _key_ctx) +
((DIV_ROUND_UP(keys.enckeylen, 16)) << 4) +
roundup(keys.enckeylen, 16) +
(param.result_size + align) * 2;
aeadctx->key_ctx_hdr = FILL_KEY_CTX_HDR(ck_size, param.mk_size,
0, 1, key_ctx_len >> 4);
@ -3393,8 +3389,7 @@ static int chcr_aead_digest_null_setkey(struct crypto_aead *authenc,
get_aes_decrypt_key(actx->dec_rrkey, aeadctx->key,
aeadctx->enckey_len << 3);
}
key_ctx_len = sizeof(struct _key_ctx)
+ ((DIV_ROUND_UP(keys.enckeylen, 16)) << 4);
key_ctx_len = sizeof(struct _key_ctx) + roundup(keys.enckeylen, 16);
aeadctx->key_ctx_hdr = FILL_KEY_CTX_HDR(ck_size, CHCR_KEYCTX_NO_KEY, 0,
0, key_ctx_len >> 4);

1
drivers/crypto/chelsio/chcr_algo.h
Просмотреть файл

@ -216,7 +216,6 @@
#define FILL_CMD_MORE(immdatalen) htonl(ULPTX_CMD_V(ULP_TX_SC_IMM) |\
ULP_TX_SC_MORE_V((immdatalen)))
#define MAX_NK 8
#define ROUND_16(bytes) ((bytes) & 0xFFFFFFF0)
#define MAX_DSGL_ENT 32
#define MIN_CIPHER_SG 1 /* IV */
#define MIN_AUTH_SG 1 /* IV */