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Date: Mon, 10 Apr 2017 18:24:01 +0530
From: Harsh Jain <harsh@...lsio.com>
To: herbert@...dor.apana.org.au, linux-crypto@...r.kernel.org,
netdev@...r.kernel.org, atul.gupta@...lsio.com,
ganeshgr@...lsio.com
Cc: Harsh Jain <harsh@...lsio.com>
Subject: [PATCH 4/4] chcr: Add fallback for AEAD algos
Fallback to sw when
I AAD length greater than 511
II Zero length payload
II No of sg entries exceeds Request size.
Signed-off-by: Harsh Jain <harsh@...lsio.com>
---
drivers/crypto/chelsio/chcr_algo.c | 219 ++++++++++++++++++++++------------
drivers/crypto/chelsio/chcr_algo.h | 4 +
drivers/crypto/chelsio/chcr_crypto.h | 3 +-
3 files changed, 151 insertions(+), 75 deletions(-)
diff --git a/drivers/crypto/chelsio/chcr_algo.c b/drivers/crypto/chelsio/chcr_algo.c
index 5470e4e..53d9ce4 100644
--- a/drivers/crypto/chelsio/chcr_algo.c
+++ b/drivers/crypto/chelsio/chcr_algo.c
@@ -1343,7 +1343,36 @@ static int chcr_copy_assoc(struct aead_request *req,
return crypto_skcipher_encrypt(skreq);
}
+static int chcr_aead_need_fallback(struct aead_request *req, int src_nent,
+ int aadmax, int wrlen,
+ unsigned short op_type)
+{
+ unsigned int authsize = crypto_aead_authsize(crypto_aead_reqtfm(req));
+
+ if (((req->cryptlen - (op_type ? authsize : 0)) == 0) ||
+ (req->assoclen > aadmax) ||
+ (src_nent > MAX_SKB_FRAGS) ||
+ (wrlen > MAX_WR_SIZE))
+ return 1;
+ return 0;
+}
+static int chcr_aead_fallback(struct aead_request *req, unsigned short op_type)
+{
+ struct crypto_aead *tfm = crypto_aead_reqtfm(req);
+ struct chcr_context *ctx = crypto_aead_ctx(tfm);
+ struct chcr_aead_ctx *aeadctx = AEAD_CTX(ctx);
+ struct aead_request *subreq = aead_request_ctx(req);
+
+ aead_request_set_tfm(subreq, aeadctx->sw_cipher);
+ aead_request_set_callback(subreq, req->base.flags,
+ req->base.complete, req->base.data);
+ aead_request_set_crypt(subreq, req->src, req->dst, req->cryptlen,
+ req->iv);
+ aead_request_set_ad(subreq, req->assoclen);
+ return op_type ? crypto_aead_decrypt(subreq) :
+ crypto_aead_encrypt(subreq);
+}
static struct sk_buff *create_authenc_wr(struct aead_request *req,
unsigned short qid,
@@ -1367,7 +1396,7 @@ static int chcr_copy_assoc(struct aead_request *req,
unsigned short stop_offset = 0;
unsigned int assoclen = req->assoclen;
unsigned int authsize = crypto_aead_authsize(tfm);
- int err = 0;
+ int err = -EINVAL, src_nent;
int null = 0;
gfp_t flags = req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP ? GFP_KERNEL :
GFP_ATOMIC;
@@ -1377,8 +1406,8 @@ static int chcr_copy_assoc(struct aead_request *req,
if (op_type && req->cryptlen < crypto_aead_authsize(tfm))
goto err;
-
- if (sg_nents_for_len(req->src, req->assoclen + req->cryptlen) < 0)
+ src_nent = sg_nents_for_len(req->src, req->assoclen + req->cryptlen);
+ if (src_nent < 0)
goto err;
src = scatterwalk_ffwd(reqctx->srcffwd, req->src, req->assoclen);
reqctx->dst = src;
@@ -1396,7 +1425,7 @@ static int chcr_copy_assoc(struct aead_request *req,
}
reqctx->dst_nents = sg_nents_for_len(reqctx->dst, req->cryptlen +
(op_type ? -authsize : authsize));
- if (reqctx->dst_nents <= 0) {
+ if (reqctx->dst_nents < 0) {
pr_err("AUTHENC:Invalid Destination sg entries\n");
goto err;
}
@@ -1404,6 +1433,12 @@ static int chcr_copy_assoc(struct aead_request *req,
kctx_len = (ntohl(KEY_CONTEXT_CTX_LEN_V(aeadctx->key_ctx_hdr)) << 4)
- sizeof(chcr_req->key_ctx);
transhdr_len = CIPHER_TRANSHDR_SIZE(kctx_len, dst_size);
+ if (chcr_aead_need_fallback(req, src_nent + MIN_AUTH_SG,
+ T6_MAX_AAD_SIZE,
+ transhdr_len + (sgl_len(src_nent + MIN_AUTH_SG) * 8),
+ op_type)) {
+ return ERR_PTR(chcr_aead_fallback(req, op_type));
+ }
skb = alloc_skb((transhdr_len + sizeof(struct sge_opaque_hdr)), flags);
if (!skb)
goto err;
@@ -1485,24 +1520,6 @@ static int chcr_copy_assoc(struct aead_request *req,
return ERR_PTR(-EINVAL);
}
-static void aes_gcm_empty_pld_pad(struct scatterlist *sg,
- unsigned short offset)
-{
- struct page *spage;
- unsigned char *addr;
-
- spage = sg_page(sg);
- get_page(spage); /* so that it is not freed by NIC */
-#ifdef KMAP_ATOMIC_ARGS
- addr = kmap_atomic(spage, KM_SOFTIRQ0);
-#else
- addr = kmap_atomic(spage);
-#endif
- memset(addr + sg->offset, 0, offset + 1);
-
- kunmap_atomic(addr);
-}
-
static int set_msg_len(u8 *block, unsigned int msglen, int csize)
{
__be32 data;
@@ -1566,11 +1583,6 @@ static int ccm_format_packet(struct aead_request *req,
struct chcr_aead_reqctx *reqctx = aead_request_ctx(req);
int rc = 0;
- if (req->assoclen > T5_MAX_AAD_SIZE) {
- pr_err("CCM: Unsupported AAD data. It should be < %d\n",
- T5_MAX_AAD_SIZE);
- return -EINVAL;
- }
if (sub_type == CRYPTO_ALG_SUB_TYPE_AEAD_RFC4309) {
reqctx->iv[0] = 3;
memcpy(reqctx->iv + 1, &aeadctx->salt[0], 3);
@@ -1715,16 +1727,17 @@ unsigned int fill_aead_req_fields(struct sk_buff *skb,
unsigned int dst_size = 0, kctx_len;
unsigned int sub_type;
unsigned int authsize = crypto_aead_authsize(tfm);
- int err = 0;
+ int err = -EINVAL, src_nent;
gfp_t flags = req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP ? GFP_KERNEL :
GFP_ATOMIC;
if (op_type && req->cryptlen < crypto_aead_authsize(tfm))
goto err;
-
- if (sg_nents_for_len(req->src, req->assoclen + req->cryptlen) < 0)
+ src_nent = sg_nents_for_len(req->src, req->assoclen + req->cryptlen);
+ if (src_nent < 0)
goto err;
+
sub_type = get_aead_subtype(tfm);
src = scatterwalk_ffwd(reqctx->srcffwd, req->src, req->assoclen);
reqctx->dst = src;
@@ -1740,7 +1753,7 @@ unsigned int fill_aead_req_fields(struct sk_buff *skb,
}
reqctx->dst_nents = sg_nents_for_len(reqctx->dst, req->cryptlen +
(op_type ? -authsize : authsize));
- if (reqctx->dst_nents <= 0) {
+ if (reqctx->dst_nents < 0) {
pr_err("CCM:Invalid Destination sg entries\n");
goto err;
}
@@ -1752,6 +1765,13 @@ unsigned int fill_aead_req_fields(struct sk_buff *skb,
dst_size = get_space_for_phys_dsgl(reqctx->dst_nents);
kctx_len = ((DIV_ROUND_UP(aeadctx->enckey_len, 16)) << 4) * 2;
transhdr_len = CIPHER_TRANSHDR_SIZE(kctx_len, dst_size);
+ if (chcr_aead_need_fallback(req, src_nent + MIN_CCM_SG,
+ T6_MAX_AAD_SIZE - 18,
+ transhdr_len + (sgl_len(src_nent + MIN_CCM_SG) * 8),
+ op_type)) {
+ return ERR_PTR(chcr_aead_fallback(req, op_type));
+ }
+
skb = alloc_skb((transhdr_len + sizeof(struct sge_opaque_hdr)), flags);
if (!skb)
@@ -1816,7 +1836,7 @@ unsigned int fill_aead_req_fields(struct sk_buff *skb,
unsigned char tag_offset = 0;
unsigned int crypt_len = 0;
unsigned int authsize = crypto_aead_authsize(tfm);
- int err = 0;
+ int err = -EINVAL, src_nent;
gfp_t flags = req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP ? GFP_KERNEL :
GFP_ATOMIC;
@@ -1826,8 +1846,8 @@ unsigned int fill_aead_req_fields(struct sk_buff *skb,
if (op_type && req->cryptlen < crypto_aead_authsize(tfm))
goto err;
-
- if (sg_nents_for_len(req->src, req->assoclen + req->cryptlen) < 0)
+ src_nent = sg_nents_for_len(req->src, req->assoclen + req->cryptlen);
+ if (src_nent < 0)
goto err;
src = scatterwalk_ffwd(reqctx->srcffwd, req->src, req->assoclen);
@@ -1849,7 +1869,7 @@ unsigned int fill_aead_req_fields(struct sk_buff *skb,
crypt_len = req->cryptlen;
reqctx->dst_nents = sg_nents_for_len(reqctx->dst, req->cryptlen +
(op_type ? -authsize : authsize));
- if (reqctx->dst_nents <= 0) {
+ if (reqctx->dst_nents < 0) {
pr_err("GCM:Invalid Destination sg entries\n");
goto err;
}
@@ -1859,6 +1879,12 @@ unsigned int fill_aead_req_fields(struct sk_buff *skb,
kctx_len = ((DIV_ROUND_UP(aeadctx->enckey_len, 16)) << 4) +
AEAD_H_SIZE;
transhdr_len = CIPHER_TRANSHDR_SIZE(kctx_len, dst_size);
+ if (chcr_aead_need_fallback(req, src_nent + MIN_GCM_SG,
+ T6_MAX_AAD_SIZE,
+ transhdr_len + (sgl_len(src_nent + MIN_GCM_SG) * 8),
+ op_type)) {
+ return ERR_PTR(chcr_aead_fallback(req, op_type));
+ }
skb = alloc_skb((transhdr_len + sizeof(struct sge_opaque_hdr)), flags);
if (!skb)
goto err;
@@ -1876,11 +1902,11 @@ unsigned int fill_aead_req_fields(struct sk_buff *skb,
chcr_req->sec_cpl.op_ivinsrtofst = FILL_SEC_CPL_OP_IVINSR(
ctx->dev->rx_channel_id, 2, (ivsize ?
(req->assoclen + 1) : 0));
- chcr_req->sec_cpl.pldlen = htonl(req->assoclen + ivsize + crypt_len);
+ chcr_req->sec_cpl.pldlen =
+ htonl(req->assoclen + ivsize + req->cryptlen);
chcr_req->sec_cpl.aadstart_cipherstop_hi = FILL_SEC_CPL_CIPHERSTOP_HI(
req->assoclen ? 1 : 0, req->assoclen,
req->assoclen + ivsize + 1, 0);
- if (req->cryptlen) {
chcr_req->sec_cpl.cipherstop_lo_authinsert =
FILL_SEC_CPL_AUTHINSERT(0, req->assoclen + ivsize + 1,
tag_offset, tag_offset);
@@ -1890,15 +1916,6 @@ unsigned int fill_aead_req_fields(struct sk_buff *skb,
CHCR_SCMD_CIPHER_MODE_AES_GCM,
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);
- chcr_req->sec_cpl.seqno_numivs =
- FILL_SEC_CPL_SCMD0_SEQNO(op_type,
- (op_type == CHCR_ENCRYPT_OP) ?
- 1 : 0, CHCR_SCMD_CIPHER_MODE_AES_CBC,
- 0, 0, ivsize >> 1);
- }
chcr_req->sec_cpl.ivgen_hdrlen = FILL_SEC_CPL_IVGEN_HDRLEN(0, 0, 1,
0, 1, dst_size);
chcr_req->key_ctx.ctx_hdr = aeadctx->key_ctx_hdr;
@@ -1931,15 +1948,7 @@ unsigned int fill_aead_req_fields(struct sk_buff *skb,
write_sg_to_skb(skb, &frags, req->src, req->assoclen);
write_buffer_to_skb(skb, &frags, reqctx->iv, ivsize);
-
- if (req->cryptlen) {
- write_sg_to_skb(skb, &frags, src, req->cryptlen);
- } else {
- aes_gcm_empty_pld_pad(req->dst, authsize - 1);
- write_sg_to_skb(skb, &frags, reqctx->dst, crypt_len);
-
- }
-
+ write_sg_to_skb(skb, &frags, src, req->cryptlen);
create_wreq(ctx, chcr_req, req, skb, kctx_len, size, 1,
sizeof(struct cpl_rx_phys_dsgl) + dst_size);
reqctx->skb = skb;
@@ -1960,8 +1969,15 @@ static int chcr_aead_cra_init(struct crypto_aead *tfm)
{
struct chcr_context *ctx = crypto_aead_ctx(tfm);
struct chcr_aead_ctx *aeadctx = AEAD_CTX(ctx);
-
- crypto_aead_set_reqsize(tfm, sizeof(struct chcr_aead_reqctx));
+ struct aead_alg *alg = crypto_aead_alg(tfm);
+
+ aeadctx->sw_cipher = crypto_alloc_aead(alg->base.cra_name, 0,
+ CRYPTO_ALG_NEED_FALLBACK);
+ if (IS_ERR(aeadctx->sw_cipher))
+ return PTR_ERR(aeadctx->sw_cipher);
+ crypto_aead_set_reqsize(tfm, max(sizeof(struct chcr_aead_reqctx),
+ sizeof(struct aead_request) +
+ crypto_aead_reqsize(aeadctx->sw_cipher)));
aeadctx->null = crypto_get_default_null_skcipher();
if (IS_ERR(aeadctx->null))
return PTR_ERR(aeadctx->null);
@@ -1970,7 +1986,11 @@ static int chcr_aead_cra_init(struct crypto_aead *tfm)
static void chcr_aead_cra_exit(struct crypto_aead *tfm)
{
+ struct chcr_context *ctx = crypto_aead_ctx(tfm);
+ struct chcr_aead_ctx *aeadctx = AEAD_CTX(ctx);
+
crypto_put_default_null_skcipher();
+ crypto_free_aead(aeadctx->sw_cipher);
}
static int chcr_authenc_null_setauthsize(struct crypto_aead *tfm,
@@ -1980,7 +2000,7 @@ static int chcr_authenc_null_setauthsize(struct crypto_aead *tfm,
aeadctx->hmac_ctrl = CHCR_SCMD_HMAC_CTRL_NOP;
aeadctx->mayverify = VERIFY_HW;
- return 0;
+ return crypto_aead_setauthsize(aeadctx->sw_cipher, authsize);
}
static int chcr_authenc_setauthsize(struct crypto_aead *tfm,
unsigned int authsize)
@@ -2017,7 +2037,7 @@ static int chcr_authenc_setauthsize(struct crypto_aead *tfm,
aeadctx->hmac_ctrl = CHCR_SCMD_HMAC_CTRL_NO_TRUNC;
aeadctx->mayverify = VERIFY_SW;
}
- return 0;
+ return crypto_aead_setauthsize(aeadctx->sw_cipher, authsize);
}
@@ -2057,7 +2077,7 @@ static int chcr_gcm_setauthsize(struct crypto_aead *tfm, unsigned int authsize)
CRYPTO_TFM_RES_BAD_KEY_LEN);
return -EINVAL;
}
- return 0;
+ return crypto_aead_setauthsize(aeadctx->sw_cipher, authsize);
}
static int chcr_4106_4309_setauthsize(struct crypto_aead *tfm,
@@ -2083,7 +2103,7 @@ static int chcr_4106_4309_setauthsize(struct crypto_aead *tfm,
CRYPTO_TFM_RES_BAD_KEY_LEN);
return -EINVAL;
}
- return 0;
+ return crypto_aead_setauthsize(aeadctx->sw_cipher, authsize);
}
static int chcr_ccm_setauthsize(struct crypto_aead *tfm,
@@ -2125,10 +2145,10 @@ static int chcr_ccm_setauthsize(struct crypto_aead *tfm,
CRYPTO_TFM_RES_BAD_KEY_LEN);
return -EINVAL;
}
- return 0;
+ return crypto_aead_setauthsize(aeadctx->sw_cipher, authsize);
}
-static int chcr_aead_ccm_setkey(struct crypto_aead *aead,
+static int chcr_ccm_common_setkey(struct crypto_aead *aead,
const u8 *key,
unsigned int keylen)
{
@@ -2137,8 +2157,6 @@ static int chcr_aead_ccm_setkey(struct crypto_aead *aead,
unsigned char ck_size, mk_size;
int key_ctx_size = 0;
- memcpy(aeadctx->key, key, keylen);
- aeadctx->enckey_len = keylen;
key_ctx_size = sizeof(struct _key_ctx) +
((DIV_ROUND_UP(keylen, 16)) << 4) * 2;
if (keylen == AES_KEYSIZE_128) {
@@ -2158,9 +2176,32 @@ static int chcr_aead_ccm_setkey(struct crypto_aead *aead,
}
aeadctx->key_ctx_hdr = FILL_KEY_CTX_HDR(ck_size, mk_size, 0, 0,
key_ctx_size >> 4);
+ memcpy(aeadctx->key, key, keylen);
+ aeadctx->enckey_len = keylen;
+
return 0;
}
+static int chcr_aead_ccm_setkey(struct crypto_aead *aead,
+ const u8 *key,
+ unsigned int keylen)
+{
+ struct chcr_context *ctx = crypto_aead_ctx(aead);
+ struct chcr_aead_ctx *aeadctx = AEAD_CTX(ctx);
+ int error;
+
+ crypto_aead_clear_flags(aeadctx->sw_cipher, CRYPTO_TFM_REQ_MASK);
+ crypto_aead_set_flags(aeadctx->sw_cipher, crypto_aead_get_flags(aead) &
+ CRYPTO_TFM_REQ_MASK);
+ error = crypto_aead_setkey(aeadctx->sw_cipher, key, keylen);
+ crypto_aead_clear_flags(aead, CRYPTO_TFM_RES_MASK);
+ crypto_aead_set_flags(aead, crypto_aead_get_flags(aeadctx->sw_cipher) &
+ CRYPTO_TFM_RES_MASK);
+ if (error)
+ return error;
+ return chcr_ccm_common_setkey(aead, key, keylen);
+}
+
static int chcr_aead_rfc4309_setkey(struct crypto_aead *aead, const u8 *key,
unsigned int keylen)
{
@@ -2175,7 +2216,7 @@ static int chcr_aead_rfc4309_setkey(struct crypto_aead *aead, const u8 *key,
}
keylen -= 3;
memcpy(aeadctx->salt, key + keylen, 3);
- return chcr_aead_ccm_setkey(aead, key, keylen);
+ return chcr_ccm_common_setkey(aead, key, keylen);
}
static int chcr_gcm_setkey(struct crypto_aead *aead, const u8 *key,
@@ -2188,6 +2229,17 @@ static int chcr_gcm_setkey(struct crypto_aead *aead, const u8 *key,
unsigned int ck_size;
int ret = 0, key_ctx_size = 0;
+ aeadctx->enckey_len = 0;
+ crypto_aead_clear_flags(aeadctx->sw_cipher, CRYPTO_TFM_REQ_MASK);
+ crypto_aead_set_flags(aeadctx->sw_cipher, crypto_aead_get_flags(aead)
+ & CRYPTO_TFM_REQ_MASK);
+ ret = crypto_aead_setkey(aeadctx->sw_cipher, key, keylen);
+ crypto_aead_clear_flags(aead, CRYPTO_TFM_RES_MASK);
+ crypto_aead_set_flags(aead, crypto_aead_get_flags(aeadctx->sw_cipher) &
+ CRYPTO_TFM_RES_MASK);
+ if (ret)
+ goto out;
+
if (get_aead_subtype(aead) == CRYPTO_ALG_SUB_TYPE_AEAD_RFC4106 &&
keylen > 3) {
keylen -= 4; /* nonce/salt is present in the last 4 bytes */
@@ -2202,8 +2254,7 @@ static int chcr_gcm_setkey(struct crypto_aead *aead, const u8 *key,
} else {
crypto_tfm_set_flags((struct crypto_tfm *)aead,
CRYPTO_TFM_RES_BAD_KEY_LEN);
- aeadctx->enckey_len = 0;
- pr_err("GCM: Invalid key length %d", keylen);
+ pr_err("GCM: Invalid key length %d\n", keylen);
ret = -EINVAL;
goto out;
}
@@ -2259,6 +2310,16 @@ static int chcr_authenc_setkey(struct crypto_aead *authenc, const u8 *key,
int align;
u8 *o_ptr = NULL;
+ crypto_aead_clear_flags(aeadctx->sw_cipher, CRYPTO_TFM_REQ_MASK);
+ crypto_aead_set_flags(aeadctx->sw_cipher, crypto_aead_get_flags(authenc)
+ & CRYPTO_TFM_REQ_MASK);
+ err = crypto_aead_setkey(aeadctx->sw_cipher, key, keylen);
+ crypto_aead_clear_flags(authenc, CRYPTO_TFM_RES_MASK);
+ crypto_aead_set_flags(authenc, crypto_aead_get_flags(aeadctx->sw_cipher)
+ & CRYPTO_TFM_RES_MASK);
+ if (err)
+ goto out;
+
if (crypto_authenc_extractkeys(&keys, key, keylen) != 0) {
crypto_aead_set_flags(authenc, CRYPTO_TFM_RES_BAD_KEY_LEN);
goto out;
@@ -2291,7 +2352,8 @@ static int chcr_authenc_setkey(struct crypto_aead *authenc, const u8 *key,
base_hash = chcr_alloc_shash(max_authsize);
if (IS_ERR(base_hash)) {
pr_err("chcr : Base driver cannot be loaded\n");
- goto out;
+ aeadctx->enckey_len = 0;
+ return -EINVAL;
}
{
SHASH_DESC_ON_STACK(shash, base_hash);
@@ -2358,11 +2420,21 @@ static int chcr_aead_digest_null_setkey(struct crypto_aead *authenc,
struct chcr_aead_ctx *aeadctx = AEAD_CTX(ctx);
struct chcr_authenc_ctx *actx = AUTHENC_CTX(aeadctx);
struct crypto_authenc_keys keys;
-
+ int err;
/* it contains auth and cipher key both*/
int key_ctx_len = 0;
unsigned char ck_size = 0;
+ crypto_aead_clear_flags(aeadctx->sw_cipher, CRYPTO_TFM_REQ_MASK);
+ crypto_aead_set_flags(aeadctx->sw_cipher, crypto_aead_get_flags(authenc)
+ & CRYPTO_TFM_REQ_MASK);
+ err = crypto_aead_setkey(aeadctx->sw_cipher, key, keylen);
+ crypto_aead_clear_flags(authenc, CRYPTO_TFM_RES_MASK);
+ crypto_aead_set_flags(authenc, crypto_aead_get_flags(aeadctx->sw_cipher)
+ & CRYPTO_TFM_RES_MASK);
+ if (err)
+ goto out;
+
if (crypto_authenc_extractkeys(&keys, key, keylen) != 0) {
crypto_aead_set_flags(authenc, CRYPTO_TFM_RES_BAD_KEY_LEN);
goto out;
@@ -2469,10 +2541,8 @@ static int chcr_aead_op(struct aead_request *req,
skb = create_wr_fn(req, u_ctx->lldi.rxq_ids[ctx->rx_qidx], size,
op_type);
- if (IS_ERR(skb) || skb == NULL) {
- pr_err("chcr : %s : failed to form WR. No memory\n", __func__);
+ if (IS_ERR(skb) || !skb)
return PTR_ERR(skb);
- }
skb->dev = u_ctx->lldi.ports[0];
set_wr_txq(skb, CPL_PRIORITY_DATA, ctx->tx_qidx);
@@ -2921,7 +2991,8 @@ static int chcr_register_alg(void)
break;
case CRYPTO_ALG_TYPE_AEAD:
driver_algs[i].alg.aead.base.cra_flags =
- CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_ASYNC;
+ CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_NEED_FALLBACK;
driver_algs[i].alg.aead.encrypt = chcr_aead_encrypt;
driver_algs[i].alg.aead.decrypt = chcr_aead_decrypt;
driver_algs[i].alg.aead.init = chcr_aead_cra_init;
diff --git a/drivers/crypto/chelsio/chcr_algo.h b/drivers/crypto/chelsio/chcr_algo.h
index ba38bae..751d06a 100644
--- a/drivers/crypto/chelsio/chcr_algo.h
+++ b/drivers/crypto/chelsio/chcr_algo.h
@@ -218,6 +218,10 @@
#define MAX_NK 8
#define CRYPTO_MAX_IMM_TX_PKT_LEN 256
+#define MAX_WR_SIZE 512
+#define MIN_AUTH_SG 2 /*IV + AAD*/
+#define MIN_GCM_SG 2 /* IV + AAD*/
+#define MIN_CCM_SG 3 /*IV+AAD+B0*/
struct algo_param {
unsigned int auth_mode;
diff --git a/drivers/crypto/chelsio/chcr_crypto.h b/drivers/crypto/chelsio/chcr_crypto.h
index c5673f0..5b2fabb 100644
--- a/drivers/crypto/chelsio/chcr_crypto.h
+++ b/drivers/crypto/chelsio/chcr_crypto.h
@@ -41,7 +41,7 @@
#define CCM_B0_SIZE 16
#define CCM_AAD_FIELD_SIZE 2
-#define T5_MAX_AAD_SIZE 512
+#define T6_MAX_AAD_SIZE 511
/* Define following if h/w is not dropping the AAD and IV data before
@@ -188,6 +188,7 @@ struct chcr_aead_ctx {
__be32 key_ctx_hdr;
unsigned int enckey_len;
struct crypto_skcipher *null;
+ struct crypto_aead *sw_cipher;
u8 salt[MAX_SALT];
u8 key[CHCR_AES_MAX_KEY_LEN];
u16 hmac_ctrl;
--
1.7.1
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