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提交 a23a334b 编写于 作者: L Linus Torvalds
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Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 

* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (34 commits)
  crypto: caam - ablkcipher support
  crypto: caam - faster aead implementation
  crypto: caam - structure renaming
  crypto: caam - shorter names
  crypto: talitos - don't bad_key in ablkcipher setkey
  crypto: talitos - remove unused giv from ablkcipher methods
  crypto: talitos - don't set done notification in hot path
  crypto: talitos - ensure request ordering within a single tfm
  crypto: gf128mul - fix call to memset()
  crypto: s390 - support hardware accelerated SHA-224
  crypto: algif_hash - Handle initial af_alg_make_sg error correctly
  crypto: sha1_generic - use SHA1_BLOCK_SIZE
  hwrng: ppc4xx - add support for ppc4xx TRNG
  crypto: crypto4xx - Perform read/modify/write on device control register
  crypto: caam - fix build warning when DEBUG_FS not configured
  crypto: arc4 - Fixed coding style issues
  crypto: crc32c - Fixed coding style issue
  crypto: omap-sham - do not schedule tasklet if there is no active requests
  crypto: omap-sham - clear device flags when finishing request
  crypto: omap-sham - irq handler must not clear error code
  ...
上级 a6422850 acdca31d
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Showing with 2136 addition and 597 deletion
arch/s390/crypto/sha256_s390.c
浏览文件 @ a23a334b
/*
* Cryptographic API.
*
* s390 implementation of the SHA256 Secure Hash Algorithm.
* s390 implementation of the SHA256 and SHA224 Secure Hash Algorithm.
*
* s390 Version:
* Copyright IBM Corp. 2005,2007
* Copyright IBM Corp. 2005,2011
* Author(s): Jan Glauber (jang@de.ibm.com)
*
* Derived from "crypto/sha256_generic.c"
* and "arch/s390/crypto/sha1_s390.c"
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation; either version 2 of the License, or (at your option)
......@@ -65,7 +62,7 @@ static int sha256_import(struct shash_desc *desc, const void *in)
return 0;
}
static struct shash_alg alg = {
static struct shash_alg sha256_alg = {
.digestsize = SHA256_DIGEST_SIZE,
.init = sha256_init,
.update = s390_sha_update,
......@@ -84,22 +81,69 @@ static struct shash_alg alg = {
}
};
static int sha256_s390_init(void)
static int sha224_init(struct shash_desc *desc)
{
struct s390_sha_ctx *sctx = shash_desc_ctx(desc);
sctx->state[0] = SHA224_H0;
sctx->state[1] = SHA224_H1;
sctx->state[2] = SHA224_H2;
sctx->state[3] = SHA224_H3;
sctx->state[4] = SHA224_H4;
sctx->state[5] = SHA224_H5;
sctx->state[6] = SHA224_H6;
sctx->state[7] = SHA224_H7;
sctx->count = 0;
sctx->func = KIMD_SHA_256;
return 0;
}
static struct shash_alg sha224_alg = {
.digestsize = SHA224_DIGEST_SIZE,
.init = sha224_init,
.update = s390_sha_update,
.final = s390_sha_final,
.export = sha256_export,
.import = sha256_import,
.descsize = sizeof(struct s390_sha_ctx),
.statesize = sizeof(struct sha256_state),
.base = {
.cra_name = "sha224",
.cra_driver_name= "sha224-s390",
.cra_priority = CRYPT_S390_PRIORITY,
.cra_flags = CRYPTO_ALG_TYPE_SHASH,
.cra_blocksize = SHA224_BLOCK_SIZE,
.cra_module = THIS_MODULE,
}
};
static int __init sha256_s390_init(void)
{
int ret;
if (!crypt_s390_func_available(KIMD_SHA_256, CRYPT_S390_MSA))
return -EOPNOTSUPP;
return crypto_register_shash(&alg);
ret = crypto_register_shash(&sha256_alg);
if (ret < 0)
goto out;
ret = crypto_register_shash(&sha224_alg);
if (ret < 0)
crypto_unregister_shash(&sha256_alg);
out:
return ret;
}
static void __exit sha256_s390_fini(void)
{
crypto_unregister_shash(&alg);
crypto_unregister_shash(&sha224_alg);
crypto_unregister_shash(&sha256_alg);
}
module_init(sha256_s390_init);
module_exit(sha256_s390_fini);
MODULE_ALIAS("sha256");
MODULE_ALIAS("sha224");
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("SHA256 Secure Hash Algorithm");
MODULE_DESCRIPTION("SHA256 and SHA224 Secure Hash Algorithm");
arch/x86/crypto/ghash-clmulni-intel_glue.c
浏览文件 @ a23a334b
......@@ -245,7 +245,7 @@ static int ghash_async_setkey(struct crypto_ahash *tfm, const u8 *key,
crypto_ahash_set_flags(tfm, crypto_ahash_get_flags(child)
& CRYPTO_TFM_RES_MASK);
return 0;
return err;
}
static int ghash_async_init_tfm(struct crypto_tfm *tfm)
......
crypto/Kconfig
浏览文件 @ a23a334b
......@@ -458,7 +458,7 @@ config CRYPTO_WP512
config CRYPTO_GHASH_CLMUL_NI_INTEL
tristate "GHASH digest algorithm (CLMUL-NI accelerated)"
depends on (X86 || UML_X86) && 64BIT
depends on X86 && 64BIT
select CRYPTO_SHASH
select CRYPTO_CRYPTD
help
......@@ -533,7 +533,7 @@ config CRYPTO_AES_X86_64
config CRYPTO_AES_NI_INTEL
tristate "AES cipher algorithms (AES-NI)"
depends on (X86 || UML_X86)
depends on X86
select CRYPTO_AES_X86_64 if 64BIT
select CRYPTO_AES_586 if !64BIT
select CRYPTO_CRYPTD
......
crypto/algif_hash.c
浏览文件 @ a23a334b
......@@ -68,8 +68,10 @@ static int hash_sendmsg(struct kiocb *unused, struct socket *sock,
int newlen;
newlen = af_alg_make_sg(&ctx->sgl, from, len, 0);
if (newlen < 0)
if (newlen < 0) {
err = copied ? 0 : newlen;
goto unlock;
}
ahash_request_set_crypt(&ctx->req, ctx->sgl.sg, NULL,
newlen);
......
crypto/arc4.c
浏览文件 @ a23a334b
/*
/*
* Cryptographic API
*
* ARC4 Cipher Algorithm
......@@ -33,16 +33,15 @@ static int arc4_set_key(struct crypto_tfm *tfm, const u8 *in_key,
ctx->x = 1;
ctx->y = 0;
for(i = 0; i < 256; i++)
for (i = 0; i < 256; i++)
ctx->S[i] = i;
for(i = 0; i < 256; i++)
{
for (i = 0; i < 256; i++) {
u8 a = ctx->S[i];
j = (j + in_key[k] + a) & 0xff;
ctx->S[i] = ctx->S[j];
ctx->S[j] = a;
if(++k >= key_len)
if (++k >= key_len)
k = 0;
}
......@@ -80,9 +79,9 @@ static struct crypto_alg arc4_alg = {
.cra_u = { .cipher = {
.cia_min_keysize = ARC4_MIN_KEY_SIZE,
.cia_max_keysize = ARC4_MAX_KEY_SIZE,
.cia_setkey = arc4_set_key,
.cia_encrypt = arc4_crypt,
.cia_decrypt = arc4_crypt } }
.cia_setkey = arc4_set_key,
.cia_encrypt = arc4_crypt,
.cia_decrypt = arc4_crypt } }
};
static int __init arc4_init(void)
......
crypto/crc32c.c
浏览文件 @ a23a334b
......@@ -224,11 +224,11 @@ static int crc32c_cra_init(struct crypto_tfm *tfm)
static struct shash_alg alg = {
.digestsize = CHKSUM_DIGEST_SIZE,
.setkey = chksum_setkey,
.init = chksum_init,
.update = chksum_update,
.final = chksum_final,
.finup = chksum_finup,
.digest = chksum_digest,
.init = chksum_init,
.update = chksum_update,
.final = chksum_final,
.finup = chksum_finup,
.digest = chksum_digest,
.descsize = sizeof(struct chksum_desc_ctx),
.base = {
.cra_name = "crc32c",
......
crypto/gf128mul.c
浏览文件 @ a23a334b
......@@ -182,7 +182,7 @@ void gf128mul_lle(be128 *r, const be128 *b)
for (i = 0; i < 7; ++i)
gf128mul_x_lle(&p[i + 1], &p[i]);
memset(r, 0, sizeof(r));
memset(r, 0, sizeof(*r));
for (i = 0;;) {
u8 ch = ((u8 *)b)[15 - i];
......@@ -220,7 +220,7 @@ void gf128mul_bbe(be128 *r, const be128 *b)
for (i = 0; i < 7; ++i)
gf128mul_x_bbe(&p[i + 1], &p[i]);
memset(r, 0, sizeof(r));
memset(r, 0, sizeof(*r));
for (i = 0;;) {
u8 ch = ((u8 *)b)[i];
......
crypto/sha1_generic.c
浏览文件 @ a23a334b
......@@ -43,25 +43,26 @@ static int sha1_update(struct shash_desc *desc, const u8 *data,
unsigned int partial, done;
const u8 *src;
partial = sctx->count & 0x3f;
partial = sctx->count % SHA1_BLOCK_SIZE;
sctx->count += len;
done = 0;
src = data;
if ((partial + len) > 63) {
if ((partial + len) >= SHA1_BLOCK_SIZE) {
u32 temp[SHA_WORKSPACE_WORDS];
if (partial) {
done = -partial;
memcpy(sctx->buffer + partial, data, done + 64);
memcpy(sctx->buffer + partial, data,
done + SHA1_BLOCK_SIZE);
src = sctx->buffer;
}
do {
sha_transform(sctx->state, src, temp);
done += 64;
done += SHA1_BLOCK_SIZE;
src = data + done;
} while (done + 63 < len);
} while (done + SHA1_BLOCK_SIZE <= len);
memset(temp, 0, sizeof(temp));
partial = 0;
......
crypto/testmgr.h
浏览文件 @ a23a334b
......@@ -2976,8 +2976,8 @@ static struct cipher_testvec cast6_dec_tv_template[] = {
#define AES_CBC_DEC_TEST_VECTORS 4
#define AES_LRW_ENC_TEST_VECTORS 8
#define AES_LRW_DEC_TEST_VECTORS 8
#define AES_XTS_ENC_TEST_VECTORS 4
#define AES_XTS_DEC_TEST_VECTORS 4
#define AES_XTS_ENC_TEST_VECTORS 5
#define AES_XTS_DEC_TEST_VECTORS 5
#define AES_CTR_ENC_TEST_VECTORS 3
#define AES_CTR_DEC_TEST_VECTORS 3
#define AES_OFB_ENC_TEST_VECTORS 1
......@@ -3926,6 +3926,150 @@ static struct cipher_testvec aes_xts_enc_tv_template[] = {
"\x0a\x28\x2d\xf9\x20\x14\x7b\xea"
"\xbe\x42\x1e\xe5\x31\x9d\x05\x68",
.rlen = 512,
}, { /* XTS-AES 10, XTS-AES-256, data unit 512 bytes */
.key = "\x27\x18\x28\x18\x28\x45\x90\x45"
"\x23\x53\x60\x28\x74\x71\x35\x26"
"\x62\x49\x77\x57\x24\x70\x93\x69"
"\x99\x59\x57\x49\x66\x96\x76\x27"
"\x31\x41\x59\x26\x53\x58\x97\x93"
"\x23\x84\x62\x64\x33\x83\x27\x95"
"\x02\x88\x41\x97\x16\x93\x99\x37"
"\x51\x05\x82\x09\x74\x94\x45\x92",
.klen = 64,
.iv = "\xff\x00\x00\x00\x00\x00\x00\x00"
"\x00\x00\x00\x00\x00\x00\x00\x00",
"\x00\x00\x00\x00\x00\x00\x00\x00",
"\x00\x00\x00\x00\x00\x00\x00\x00",
.input = "\x00\x01\x02\x03\x04\x05\x06\x07"
"\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f"
"\x10\x11\x12\x13\x14\x15\x16\x17"
"\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f"
"\x20\x21\x22\x23\x24\x25\x26\x27"
"\x28\x29\x2a\x2b\x2c\x2d\x2e\x2f"
"\x30\x31\x32\x33\x34\x35\x36\x37"
"\x38\x39\x3a\x3b\x3c\x3d\x3e\x3f"
"\x40\x41\x42\x43\x44\x45\x46\x47"
"\x48\x49\x4a\x4b\x4c\x4d\x4e\x4f"
"\x50\x51\x52\x53\x54\x55\x56\x57"
"\x58\x59\x5a\x5b\x5c\x5d\x5e\x5f"
"\x60\x61\x62\x63\x64\x65\x66\x67"
"\x68\x69\x6a\x6b\x6c\x6d\x6e\x6f"
"\x70\x71\x72\x73\x74\x75\x76\x77"
"\x78\x79\x7a\x7b\x7c\x7d\x7e\x7f"
"\x80\x81\x82\x83\x84\x85\x86\x87"
"\x88\x89\x8a\x8b\x8c\x8d\x8e\x8f"
"\x90\x91\x92\x93\x94\x95\x96\x97"
"\x98\x99\x9a\x9b\x9c\x9d\x9e\x9f"
"\xa0\xa1\xa2\xa3\xa4\xa5\xa6\xa7"
"\xa8\xa9\xaa\xab\xac\xad\xae\xaf"
"\xb0\xb1\xb2\xb3\xb4\xb5\xb6\xb7"
"\xb8\xb9\xba\xbb\xbc\xbd\xbe\xbf"
"\xc0\xc1\xc2\xc3\xc4\xc5\xc6\xc7"
"\xc8\xc9\xca\xcb\xcc\xcd\xce\xcf"
"\xd0\xd1\xd2\xd3\xd4\xd5\xd6\xd7"
"\xd8\xd9\xda\xdb\xdc\xdd\xde\xdf"
"\xe0\xe1\xe2\xe3\xe4\xe5\xe6\xe7"
"\xe8\xe9\xea\xeb\xec\xed\xee\xef"
"\xf0\xf1\xf2\xf3\xf4\xf5\xf6\xf7"
"\xf8\xf9\xfa\xfb\xfc\xfd\xfe\xff"
"\x00\x01\x02\x03\x04\x05\x06\x07"
"\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f"
"\x10\x11\x12\x13\x14\x15\x16\x17"
"\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f"
"\x20\x21\x22\x23\x24\x25\x26\x27"
"\x28\x29\x2a\x2b\x2c\x2d\x2e\x2f"
"\x30\x31\x32\x33\x34\x35\x36\x37"
"\x38\x39\x3a\x3b\x3c\x3d\x3e\x3f"
"\x40\x41\x42\x43\x44\x45\x46\x47"
"\x48\x49\x4a\x4b\x4c\x4d\x4e\x4f"
"\x50\x51\x52\x53\x54\x55\x56\x57"
"\x58\x59\x5a\x5b\x5c\x5d\x5e\x5f"
"\x60\x61\x62\x63\x64\x65\x66\x67"
"\x68\x69\x6a\x6b\x6c\x6d\x6e\x6f"
"\x70\x71\x72\x73\x74\x75\x76\x77"
"\x78\x79\x7a\x7b\x7c\x7d\x7e\x7f"
"\x80\x81\x82\x83\x84\x85\x86\x87"
"\x88\x89\x8a\x8b\x8c\x8d\x8e\x8f"
"\x90\x91\x92\x93\x94\x95\x96\x97"
"\x98\x99\x9a\x9b\x9c\x9d\x9e\x9f"
"\xa0\xa1\xa2\xa3\xa4\xa5\xa6\xa7"
"\xa8\xa9\xaa\xab\xac\xad\xae\xaf"
"\xb0\xb1\xb2\xb3\xb4\xb5\xb6\xb7"
"\xb8\xb9\xba\xbb\xbc\xbd\xbe\xbf"
"\xc0\xc1\xc2\xc3\xc4\xc5\xc6\xc7"
"\xc8\xc9\xca\xcb\xcc\xcd\xce\xcf"
"\xd0\xd1\xd2\xd3\xd4\xd5\xd6\xd7"
"\xd8\xd9\xda\xdb\xdc\xdd\xde\xdf"
"\xe0\xe1\xe2\xe3\xe4\xe5\xe6\xe7"
"\xe8\xe9\xea\xeb\xec\xed\xee\xef"
"\xf0\xf1\xf2\xf3\xf4\xf5\xf6\xf7"
"\xf8\xf9\xfa\xfb\xfc\xfd\xfe\xff",
.ilen = 512,
.result = "\x1c\x3b\x3a\x10\x2f\x77\x03\x86"
"\xe4\x83\x6c\x99\xe3\x70\xcf\x9b"
"\xea\x00\x80\x3f\x5e\x48\x23\x57"
"\xa4\xae\x12\xd4\x14\xa3\xe6\x3b"
"\x5d\x31\xe2\x76\xf8\xfe\x4a\x8d"
"\x66\xb3\x17\xf9\xac\x68\x3f\x44"
"\x68\x0a\x86\xac\x35\xad\xfc\x33"
"\x45\xbe\xfe\xcb\x4b\xb1\x88\xfd"
"\x57\x76\x92\x6c\x49\xa3\x09\x5e"
"\xb1\x08\xfd\x10\x98\xba\xec\x70"
"\xaa\xa6\x69\x99\xa7\x2a\x82\xf2"
"\x7d\x84\x8b\x21\xd4\xa7\x41\xb0"
"\xc5\xcd\x4d\x5f\xff\x9d\xac\x89"
"\xae\xba\x12\x29\x61\xd0\x3a\x75"
"\x71\x23\xe9\x87\x0f\x8a\xcf\x10"
"\x00\x02\x08\x87\x89\x14\x29\xca"
"\x2a\x3e\x7a\x7d\x7d\xf7\xb1\x03"
"\x55\x16\x5c\x8b\x9a\x6d\x0a\x7d"
"\xe8\xb0\x62\xc4\x50\x0d\xc4\xcd"
"\x12\x0c\x0f\x74\x18\xda\xe3\xd0"
"\xb5\x78\x1c\x34\x80\x3f\xa7\x54"
"\x21\xc7\x90\xdf\xe1\xde\x18\x34"
"\xf2\x80\xd7\x66\x7b\x32\x7f\x6c"
"\x8c\xd7\x55\x7e\x12\xac\x3a\x0f"
"\x93\xec\x05\xc5\x2e\x04\x93\xef"
"\x31\xa1\x2d\x3d\x92\x60\xf7\x9a"
"\x28\x9d\x6a\x37\x9b\xc7\x0c\x50"
"\x84\x14\x73\xd1\xa8\xcc\x81\xec"
"\x58\x3e\x96\x45\xe0\x7b\x8d\x96"
"\x70\x65\x5b\xa5\xbb\xcf\xec\xc6"
"\xdc\x39\x66\x38\x0a\xd8\xfe\xcb"
"\x17\xb6\xba\x02\x46\x9a\x02\x0a"
"\x84\xe1\x8e\x8f\x84\x25\x20\x70"
"\xc1\x3e\x9f\x1f\x28\x9b\xe5\x4f"
"\xbc\x48\x14\x57\x77\x8f\x61\x60"
"\x15\xe1\x32\x7a\x02\xb1\x40\xf1"
"\x50\x5e\xb3\x09\x32\x6d\x68\x37"
"\x8f\x83\x74\x59\x5c\x84\x9d\x84"
"\xf4\xc3\x33\xec\x44\x23\x88\x51"
"\x43\xcb\x47\xbd\x71\xc5\xed\xae"
"\x9b\xe6\x9a\x2f\xfe\xce\xb1\xbe"
"\xc9\xde\x24\x4f\xbe\x15\x99\x2b"
"\x11\xb7\x7c\x04\x0f\x12\xbd\x8f"
"\x6a\x97\x5a\x44\xa0\xf9\x0c\x29"
"\xa9\xab\xc3\xd4\xd8\x93\x92\x72"
"\x84\xc5\x87\x54\xcc\xe2\x94\x52"
"\x9f\x86\x14\xdc\xd2\xab\xa9\x91"
"\x92\x5f\xed\xc4\xae\x74\xff\xac"
"\x6e\x33\x3b\x93\xeb\x4a\xff\x04"
"\x79\xda\x9a\x41\x0e\x44\x50\xe0"
"\xdd\x7a\xe4\xc6\xe2\x91\x09\x00"
"\x57\x5d\xa4\x01\xfc\x07\x05\x9f"
"\x64\x5e\x8b\x7e\x9b\xfd\xef\x33"
"\x94\x30\x54\xff\x84\x01\x14\x93"
"\xc2\x7b\x34\x29\xea\xed\xb4\xed"
"\x53\x76\x44\x1a\x77\xed\x43\x85"
"\x1a\xd7\x7f\x16\xf5\x41\xdf\xd2"
"\x69\xd5\x0d\x6a\x5f\x14\xfb\x0a"
"\xab\x1c\xbb\x4c\x15\x50\xbe\x97"
"\xf7\xab\x40\x66\x19\x3c\x4c\xaa"
"\x77\x3d\xad\x38\x01\x4b\xd2\x09"
"\x2f\xa7\x55\xc8\x24\xbb\x5e\x54"
"\xc4\xf3\x6f\xfd\xa9\xfc\xea\x70"
"\xb9\xc6\xe6\x93\xe1\x48\xc1\x51",
.rlen = 512,
}
};
......@@ -4123,6 +4267,151 @@ static struct cipher_testvec aes_xts_dec_tv_template[] = {
"\xf0\xf1\xf2\xf3\xf4\xf5\xf6\xf7"
"\xf8\xf9\xfa\xfb\xfc\xfd\xfe\xff",
.rlen = 512,
}, { /* XTS-AES 10, XTS-AES-256, data unit 512 bytes */
.key = "\x27\x18\x28\x18\x28\x45\x90\x45"
"\x23\x53\x60\x28\x74\x71\x35\x26"
"\x62\x49\x77\x57\x24\x70\x93\x69"
"\x99\x59\x57\x49\x66\x96\x76\x27"
"\x31\x41\x59\x26\x53\x58\x97\x93"
"\x23\x84\x62\x64\x33\x83\x27\x95"
"\x02\x88\x41\x97\x16\x93\x99\x37"
"\x51\x05\x82\x09\x74\x94\x45\x92",
.klen = 64,
.iv = "\xff\x00\x00\x00\x00\x00\x00\x00"
"\x00\x00\x00\x00\x00\x00\x00\x00",
"\x00\x00\x00\x00\x00\x00\x00\x00",
"\x00\x00\x00\x00\x00\x00\x00\x00",
.input = "\x1c\x3b\x3a\x10\x2f\x77\x03\x86"
"\xe4\x83\x6c\x99\xe3\x70\xcf\x9b"
"\xea\x00\x80\x3f\x5e\x48\x23\x57"
"\xa4\xae\x12\xd4\x14\xa3\xe6\x3b"
"\x5d\x31\xe2\x76\xf8\xfe\x4a\x8d"
"\x66\xb3\x17\xf9\xac\x68\x3f\x44"
"\x68\x0a\x86\xac\x35\xad\xfc\x33"
"\x45\xbe\xfe\xcb\x4b\xb1\x88\xfd"
"\x57\x76\x92\x6c\x49\xa3\x09\x5e"
"\xb1\x08\xfd\x10\x98\xba\xec\x70"
"\xaa\xa6\x69\x99\xa7\x2a\x82\xf2"
"\x7d\x84\x8b\x21\xd4\xa7\x41\xb0"
"\xc5\xcd\x4d\x5f\xff\x9d\xac\x89"
"\xae\xba\x12\x29\x61\xd0\x3a\x75"
"\x71\x23\xe9\x87\x0f\x8a\xcf\x10"
"\x00\x02\x08\x87\x89\x14\x29\xca"
"\x2a\x3e\x7a\x7d\x7d\xf7\xb1\x03"
"\x55\x16\x5c\x8b\x9a\x6d\x0a\x7d"
"\xe8\xb0\x62\xc4\x50\x0d\xc4\xcd"
"\x12\x0c\x0f\x74\x18\xda\xe3\xd0"
"\xb5\x78\x1c\x34\x80\x3f\xa7\x54"
"\x21\xc7\x90\xdf\xe1\xde\x18\x34"
"\xf2\x80\xd7\x66\x7b\x32\x7f\x6c"
"\x8c\xd7\x55\x7e\x12\xac\x3a\x0f"
"\x93\xec\x05\xc5\x2e\x04\x93\xef"
"\x31\xa1\x2d\x3d\x92\x60\xf7\x9a"
"\x28\x9d\x6a\x37\x9b\xc7\x0c\x50"
"\x84\x14\x73\xd1\xa8\xcc\x81\xec"
"\x58\x3e\x96\x45\xe0\x7b\x8d\x96"
"\x70\x65\x5b\xa5\xbb\xcf\xec\xc6"
"\xdc\x39\x66\x38\x0a\xd8\xfe\xcb"
"\x17\xb6\xba\x02\x46\x9a\x02\x0a"
"\x84\xe1\x8e\x8f\x84\x25\x20\x70"
"\xc1\x3e\x9f\x1f\x28\x9b\xe5\x4f"
"\xbc\x48\x14\x57\x77\x8f\x61\x60"
"\x15\xe1\x32\x7a\x02\xb1\x40\xf1"
"\x50\x5e\xb3\x09\x32\x6d\x68\x37"
"\x8f\x83\x74\x59\x5c\x84\x9d\x84"
"\xf4\xc3\x33\xec\x44\x23\x88\x51"
"\x43\xcb\x47\xbd\x71\xc5\xed\xae"
"\x9b\xe6\x9a\x2f\xfe\xce\xb1\xbe"
"\xc9\xde\x24\x4f\xbe\x15\x99\x2b"
"\x11\xb7\x7c\x04\x0f\x12\xbd\x8f"
"\x6a\x97\x5a\x44\xa0\xf9\x0c\x29"
"\xa9\xab\xc3\xd4\xd8\x93\x92\x72"
"\x84\xc5\x87\x54\xcc\xe2\x94\x52"
"\x9f\x86\x14\xdc\xd2\xab\xa9\x91"
"\x92\x5f\xed\xc4\xae\x74\xff\xac"
"\x6e\x33\x3b\x93\xeb\x4a\xff\x04"
"\x79\xda\x9a\x41\x0e\x44\x50\xe0"
"\xdd\x7a\xe4\xc6\xe2\x91\x09\x00"
"\x57\x5d\xa4\x01\xfc\x07\x05\x9f"
"\x64\x5e\x8b\x7e\x9b\xfd\xef\x33"
"\x94\x30\x54\xff\x84\x01\x14\x93"
"\xc2\x7b\x34\x29\xea\xed\xb4\xed"
"\x53\x76\x44\x1a\x77\xed\x43\x85"
"\x1a\xd7\x7f\x16\xf5\x41\xdf\xd2"
"\x69\xd5\x0d\x6a\x5f\x14\xfb\x0a"
"\xab\x1c\xbb\x4c\x15\x50\xbe\x97"
"\xf7\xab\x40\x66\x19\x3c\x4c\xaa"
"\x77\x3d\xad\x38\x01\x4b\xd2\x09"
"\x2f\xa7\x55\xc8\x24\xbb\x5e\x54"
"\xc4\xf3\x6f\xfd\xa9\xfc\xea\x70"
"\xb9\xc6\xe6\x93\xe1\x48\xc1\x51",
.ilen = 512,
.result = "\x00\x01\x02\x03\x04\x05\x06\x07"
"\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f"
"\x10\x11\x12\x13\x14\x15\x16\x17"
"\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f"
"\x20\x21\x22\x23\x24\x25\x26\x27"
"\x28\x29\x2a\x2b\x2c\x2d\x2e\x2f"
"\x30\x31\x32\x33\x34\x35\x36\x37"
"\x38\x39\x3a\x3b\x3c\x3d\x3e\x3f"
"\x40\x41\x42\x43\x44\x45\x46\x47"
"\x48\x49\x4a\x4b\x4c\x4d\x4e\x4f"
"\x50\x51\x52\x53\x54\x55\x56\x57"
"\x58\x59\x5a\x5b\x5c\x5d\x5e\x5f"
"\x60\x61\x62\x63\x64\x65\x66\x67"
"\x68\x69\x6a\x6b\x6c\x6d\x6e\x6f"
"\x70\x71\x72\x73\x74\x75\x76\x77"
"\x78\x79\x7a\x7b\x7c\x7d\x7e\x7f"
"\x80\x81\x82\x83\x84\x85\x86\x87"
"\x88\x89\x8a\x8b\x8c\x8d\x8e\x8f"
"\x90\x91\x92\x93\x94\x95\x96\x97"
"\x98\x99\x9a\x9b\x9c\x9d\x9e\x9f"
"\xa0\xa1\xa2\xa3\xa4\xa5\xa6\xa7"
"\xa8\xa9\xaa\xab\xac\xad\xae\xaf"
"\xb0\xb1\xb2\xb3\xb4\xb5\xb6\xb7"
"\xb8\xb9\xba\xbb\xbc\xbd\xbe\xbf"
"\xc0\xc1\xc2\xc3\xc4\xc5\xc6\xc7"
"\xc8\xc9\xca\xcb\xcc\xcd\xce\xcf"
"\xd0\xd1\xd2\xd3\xd4\xd5\xd6\xd7"
"\xd8\xd9\xda\xdb\xdc\xdd\xde\xdf"
"\xe0\xe1\xe2\xe3\xe4\xe5\xe6\xe7"
"\xe8\xe9\xea\xeb\xec\xed\xee\xef"
"\xf0\xf1\xf2\xf3\xf4\xf5\xf6\xf7"
"\xf8\xf9\xfa\xfb\xfc\xfd\xfe\xff"
"\x00\x01\x02\x03\x04\x05\x06\x07"
"\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f"
"\x10\x11\x12\x13\x14\x15\x16\x17"
"\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f"
"\x20\x21\x22\x23\x24\x25\x26\x27"
"\x28\x29\x2a\x2b\x2c\x2d\x2e\x2f"
"\x30\x31\x32\x33\x34\x35\x36\x37"
"\x38\x39\x3a\x3b\x3c\x3d\x3e\x3f"
"\x40\x41\x42\x43\x44\x45\x46\x47"
"\x48\x49\x4a\x4b\x4c\x4d\x4e\x4f"
"\x50\x51\x52\x53\x54\x55\x56\x57"
"\x58\x59\x5a\x5b\x5c\x5d\x5e\x5f"
"\x60\x61\x62\x63\x64\x65\x66\x67"
"\x68\x69\x6a\x6b\x6c\x6d\x6e\x6f"
"\x70\x71\x72\x73\x74\x75\x76\x77"
"\x78\x79\x7a\x7b\x7c\x7d\x7e\x7f"
"\x80\x81\x82\x83\x84\x85\x86\x87"
"\x88\x89\x8a\x8b\x8c\x8d\x8e\x8f"
"\x90\x91\x92\x93\x94\x95\x96\x97"
"\x98\x99\x9a\x9b\x9c\x9d\x9e\x9f"
"\xa0\xa1\xa2\xa3\xa4\xa5\xa6\xa7"
"\xa8\xa9\xaa\xab\xac\xad\xae\xaf"
"\xb0\xb1\xb2\xb3\xb4\xb5\xb6\xb7"
"\xb8\xb9\xba\xbb\xbc\xbd\xbe\xbf"
"\xc0\xc1\xc2\xc3\xc4\xc5\xc6\xc7"
"\xc8\xc9\xca\xcb\xcc\xcd\xce\xcf"
"\xd0\xd1\xd2\xd3\xd4\xd5\xd6\xd7"
"\xd8\xd9\xda\xdb\xdc\xdd\xde\xdf"
"\xe0\xe1\xe2\xe3\xe4\xe5\xe6\xe7"
"\xe8\xe9\xea\xeb\xec\xed\xee\xef"
"\xf0\xf1\xf2\xf3\xf4\xf5\xf6\xf7"
"\xf8\xf9\xfa\xfb\xfc\xfd\xfe\xff",
.rlen = 512,
}
};
......
drivers/char/hw_random/Kconfig
浏览文件 @ a23a334b
......@@ -210,3 +210,15 @@ config HW_RANDOM_PICOXCELL
module will be called picoxcell-rng.
If unsure, say Y.
config HW_RANDOM_PPC4XX
tristate "PowerPC 4xx generic true random number generator support"
depends on HW_RANDOM && PPC && 4xx
---help---
This driver provides the kernel-side support for the TRNG hardware
found in the security function of some PowerPC 4xx SoCs.
To compile this driver as a module, choose M here: the
module will be called ppc4xx-rng.
If unsure, say N.
drivers/char/hw_random/Makefile
浏览文件 @ a23a334b
......@@ -20,3 +20,4 @@ obj-$(CONFIG_HW_RANDOM_MXC_RNGA) += mxc-rnga.o
obj-$(CONFIG_HW_RANDOM_OCTEON) += octeon-rng.o
obj-$(CONFIG_HW_RANDOM_NOMADIK) += nomadik-rng.o
obj-$(CONFIG_HW_RANDOM_PICOXCELL) += picoxcell-rng.o
obj-$(CONFIG_HW_RANDOM_PPC4XX) += ppc4xx-rng.o
drivers/char/hw_random/nomadik-rng.c
浏览文件 @ a23a334b
......@@ -55,7 +55,7 @@ static int nmk_rng_probe(struct amba_device *dev, const struct amba_id *id)
ret = amba_request_regions(dev, dev->dev.init_name);
if (ret)
return ret;
goto out_clk;
ret = -ENOMEM;
base = ioremap(dev->res.start, resource_size(&dev->res));
if (!base)
......@@ -70,6 +70,7 @@ static int nmk_rng_probe(struct amba_device *dev, const struct amba_id *id)
iounmap(base);
out_release:
amba_release_regions(dev);
out_clk:
clk_disable(rng_clk);
clk_put(rng_clk);
return ret;
......
drivers/char/hw_random/omap-rng.c
浏览文件 @ a23a334b
......@@ -113,8 +113,10 @@ static int __devinit omap_rng_probe(struct platform_device *pdev)
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res)
return -ENOENT;
if (!res) {
ret = -ENOENT;
goto err_region;
}
if (!request_mem_region(res->start, resource_size(res), pdev->name)) {
ret = -EBUSY;
......
drivers/char/hw_random/ppc4xx-rng.c 0 → 100644
浏览文件 @ a23a334b
/*
* Generic PowerPC 44x RNG driver
*
* Copyright 2011 IBM Corporation
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; version 2 of the License.
*/
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/platform_device.h>
#include <linux/hw_random.h>
#include <linux/delay.h>
#include <linux/of_platform.h>
#include <asm/io.h>
#define PPC4XX_TRNG_DEV_CTRL 0x60080
#define PPC4XX_TRNGE 0x00020000
#define PPC4XX_TRNG_CTRL 0x0008
#define PPC4XX_TRNG_CTRL_DALM 0x20
#define PPC4XX_TRNG_STAT 0x0004
#define PPC4XX_TRNG_STAT_B 0x1
#define PPC4XX_TRNG_DATA 0x0000
#define MODULE_NAME "ppc4xx_rng"
static int ppc4xx_rng_data_present(struct hwrng *rng, int wait)
{
void __iomem *rng_regs = (void __iomem *) rng->priv;
int busy, i, present = 0;
for (i = 0; i < 20; i++) {
busy = (in_le32(rng_regs + PPC4XX_TRNG_STAT) & PPC4XX_TRNG_STAT_B);
if (!busy || !wait) {
present = 1;
break;
}
udelay(10);
}
return present;
}
static int ppc4xx_rng_data_read(struct hwrng *rng, u32 *data)
{
void __iomem *rng_regs = (void __iomem *) rng->priv;
*data = in_le32(rng_regs + PPC4XX_TRNG_DATA);
return 4;
}
static int ppc4xx_rng_enable(int enable)
{
struct device_node *ctrl;
void __iomem *ctrl_reg;
int err = 0;
u32 val;
/* Find the main crypto device node and map it to turn the TRNG on */
ctrl = of_find_compatible_node(NULL, NULL, "amcc,ppc4xx-crypto");
if (!ctrl)
return -ENODEV;
ctrl_reg = of_iomap(ctrl, 0);
if (!ctrl_reg) {
err = -ENODEV;
goto out;
}
val = in_le32(ctrl_reg + PPC4XX_TRNG_DEV_CTRL);
if (enable)
val |= PPC4XX_TRNGE;
else
val = val & ~PPC4XX_TRNGE;
out_le32(ctrl_reg + PPC4XX_TRNG_DEV_CTRL, val);
iounmap(ctrl_reg);
out:
of_node_put(ctrl);
return err;
}
static struct hwrng ppc4xx_rng = {
.name = MODULE_NAME,
.data_present = ppc4xx_rng_data_present,
.data_read = ppc4xx_rng_data_read,
};
static int __devinit ppc4xx_rng_probe(struct platform_device *dev)
{
void __iomem *rng_regs;
int err = 0;
rng_regs = of_iomap(dev->dev.of_node, 0);
if (!rng_regs)
return -ENODEV;
err = ppc4xx_rng_enable(1);
if (err)
return err;
out_le32(rng_regs + PPC4XX_TRNG_CTRL, PPC4XX_TRNG_CTRL_DALM);
ppc4xx_rng.priv = (unsigned long) rng_regs;
err = hwrng_register(&ppc4xx_rng);
return err;
}
static int __devexit ppc4xx_rng_remove(struct platform_device *dev)
{
void __iomem *rng_regs = (void __iomem *) ppc4xx_rng.priv;
hwrng_unregister(&ppc4xx_rng);
ppc4xx_rng_enable(0);
iounmap(rng_regs);
return 0;
}
static struct of_device_id ppc4xx_rng_match[] = {
{ .compatible = "ppc4xx-rng", },
{ .compatible = "amcc,ppc460ex-rng", },
{ .compatible = "amcc,ppc440epx-rng", },
{},
};
static struct platform_driver ppc4xx_rng_driver = {
.driver = {
.name = MODULE_NAME,
.owner = THIS_MODULE,
.of_match_table = ppc4xx_rng_match,
},
.probe = ppc4xx_rng_probe,
.remove = ppc4xx_rng_remove,
};
static int __init ppc4xx_rng_init(void)
{
return platform_driver_register(&ppc4xx_rng_driver);
}
module_init(ppc4xx_rng_init);
static void __exit ppc4xx_rng_exit(void)
{
platform_driver_unregister(&ppc4xx_rng_driver);
}
module_exit(ppc4xx_rng_exit);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Josh Boyer <jwboyer@linux.vnet.ibm.com>");
MODULE_DESCRIPTION("HW RNG driver for PPC 4xx processors");
drivers/char/hw_random/timeriomem-rng.c
浏览文件 @ a23a334b
......@@ -100,8 +100,7 @@ static int __devinit timeriomem_rng_probe(struct platform_device *pdev)
timeriomem_rng_data = pdev->dev.platform_data;
timeriomem_rng_data->address = ioremap(res->start,
res->end - res->start + 1);
timeriomem_rng_data->address = ioremap(res->start, resource_size(res));
if (!timeriomem_rng_data->address)
return -EIO;
......
drivers/crypto/amcc/crypto4xx_core.c
浏览文件 @ a23a334b
......@@ -51,6 +51,7 @@ static void crypto4xx_hw_init(struct crypto4xx_device *dev)
union ce_io_threshold io_threshold;
u32 rand_num;
union ce_pe_dma_cfg pe_dma_cfg;
u32 device_ctrl;
writel(PPC4XX_BYTE_ORDER, dev->ce_base + CRYPTO4XX_BYTE_ORDER_CFG);
/* setup pe dma, include reset sg, pdr and pe, then release reset */
......@@ -84,7 +85,9 @@ static void crypto4xx_hw_init(struct crypto4xx_device *dev)
writel(ring_size.w, dev->ce_base + CRYPTO4XX_RING_SIZE);
ring_ctrl.w = 0;
writel(ring_ctrl.w, dev->ce_base + CRYPTO4XX_RING_CTRL);
writel(PPC4XX_DC_3DES_EN, dev->ce_base + CRYPTO4XX_DEVICE_CTRL);
device_ctrl = readl(dev->ce_base + CRYPTO4XX_DEVICE_CTRL);
device_ctrl |= PPC4XX_DC_3DES_EN;
writel(device_ctrl, dev->ce_base + CRYPTO4XX_DEVICE_CTRL);
writel(dev->gdr_pa, dev->ce_base + CRYPTO4XX_GATH_RING_BASE);
writel(dev->sdr_pa, dev->ce_base + CRYPTO4XX_SCAT_RING_BASE);
part_ring_size.w = 0;
......
drivers/crypto/caam/caamalg.c
浏览文件 @ a23a334b
......@@ -62,10 +62,22 @@
#define CAAM_MAX_IV_LENGTH 16
/* length of descriptors text */
#define DESC_AEAD_SHARED_TEXT_LEN 4
#define DESC_AEAD_ENCRYPT_TEXT_LEN 21
#define DESC_AEAD_DECRYPT_TEXT_LEN 24
#define DESC_AEAD_GIVENCRYPT_TEXT_LEN 27
#define DESC_JOB_IO_LEN (CAAM_CMD_SZ * 3 + CAAM_PTR_SZ * 3)
#define DESC_AEAD_BASE (4 * CAAM_CMD_SZ)
#define DESC_AEAD_ENC_LEN (DESC_AEAD_BASE + 16 * CAAM_CMD_SZ)
#define DESC_AEAD_DEC_LEN (DESC_AEAD_BASE + 21 * CAAM_CMD_SZ)
#define DESC_AEAD_GIVENC_LEN (DESC_AEAD_ENC_LEN + 7 * CAAM_CMD_SZ)
#define DESC_ABLKCIPHER_BASE (3 * CAAM_CMD_SZ)
#define DESC_ABLKCIPHER_ENC_LEN (DESC_ABLKCIPHER_BASE + \
20 * CAAM_CMD_SZ)
#define DESC_ABLKCIPHER_DEC_LEN (DESC_ABLKCIPHER_BASE + \
15 * CAAM_CMD_SZ)
#define DESC_MAX_USED_BYTES (DESC_AEAD_GIVENC_LEN + \
CAAM_MAX_KEY_SIZE)
#define DESC_MAX_USED_LEN (DESC_MAX_USED_BYTES / CAAM_CMD_SZ)
#ifdef DEBUG
/* for print_hex_dumps with line references */
......@@ -76,30 +88,366 @@
#define debug(format, arg...)
#endif
/* Set DK bit in class 1 operation if shared */
static inline void append_dec_op1(u32 *desc, u32 type)
{
u32 *jump_cmd, *uncond_jump_cmd;
jump_cmd = append_jump(desc, JUMP_TEST_ALL | JUMP_COND_SHRD);
append_operation(desc, type | OP_ALG_AS_INITFINAL |
OP_ALG_DECRYPT);
uncond_jump_cmd = append_jump(desc, JUMP_TEST_ALL);
set_jump_tgt_here(desc, jump_cmd);
append_operation(desc, type | OP_ALG_AS_INITFINAL |
OP_ALG_DECRYPT | OP_ALG_AAI_DK);
set_jump_tgt_here(desc, uncond_jump_cmd);
}
/*
* Wait for completion of class 1 key loading before allowing
* error propagation
*/
static inline void append_dec_shr_done(u32 *desc)
{
u32 *jump_cmd;
jump_cmd = append_jump(desc, JUMP_CLASS_CLASS1 | JUMP_TEST_ALL);
set_jump_tgt_here(desc, jump_cmd);
append_cmd(desc, SET_OK_PROP_ERRORS | CMD_LOAD);
}
/*
* For aead functions, read payload and write payload,
* both of which are specified in req->src and req->dst
*/
static inline void aead_append_src_dst(u32 *desc, u32 msg_type)
{
append_seq_fifo_load(desc, 0, FIFOLD_CLASS_BOTH |
KEY_VLF | msg_type | FIFOLD_TYPE_LASTBOTH);
append_seq_fifo_store(desc, 0, FIFOST_TYPE_MESSAGE_DATA | KEY_VLF);
}
/*
* For aead encrypt and decrypt, read iv for both classes
*/
static inline void aead_append_ld_iv(u32 *desc, int ivsize)
{
append_cmd(desc, CMD_SEQ_LOAD | LDST_SRCDST_BYTE_CONTEXT |
LDST_CLASS_1_CCB | ivsize);
append_move(desc, MOVE_SRC_CLASS1CTX | MOVE_DEST_CLASS2INFIFO | ivsize);
}
/*
* For ablkcipher encrypt and decrypt, read from req->src and
* write to req->dst
*/
static inline void ablkcipher_append_src_dst(u32 *desc)
{
append_math_add(desc, VARSEQOUTLEN, SEQINLEN, REG0, CAAM_CMD_SZ); \
append_math_add(desc, VARSEQINLEN, SEQINLEN, REG0, CAAM_CMD_SZ); \
append_seq_fifo_load(desc, 0, FIFOLD_CLASS_CLASS1 | \
KEY_VLF | FIFOLD_TYPE_MSG | FIFOLD_TYPE_LAST1); \
append_seq_fifo_store(desc, 0, FIFOST_TYPE_MESSAGE_DATA | KEY_VLF); \
}
/*
* If all data, including src (with assoc and iv) or dst (with iv only) are
* contiguous
*/
#define GIV_SRC_CONTIG 1
#define GIV_DST_CONTIG (1 << 1)
/*
* per-session context
*/
struct caam_ctx {
struct device *jrdev;
u32 *sh_desc;
dma_addr_t shared_desc_phys;
u32 sh_desc_enc[DESC_MAX_USED_LEN];
u32 sh_desc_dec[DESC_MAX_USED_LEN];
u32 sh_desc_givenc[DESC_MAX_USED_LEN];
dma_addr_t sh_desc_enc_dma;
dma_addr_t sh_desc_dec_dma;
dma_addr_t sh_desc_givenc_dma;
u32 class1_alg_type;
u32 class2_alg_type;
u32 alg_op;
u8 *key;
dma_addr_t key_phys;
u8 key[CAAM_MAX_KEY_SIZE];
dma_addr_t key_dma;
unsigned int enckeylen;
unsigned int split_key_len;
unsigned int split_key_pad_len;
unsigned int authsize;
};
static int aead_authenc_setauthsize(struct crypto_aead *authenc,
static void append_key_aead(u32 *desc, struct caam_ctx *ctx,
int keys_fit_inline)
{
if (keys_fit_inline) {
append_key_as_imm(desc, ctx->key, ctx->split_key_pad_len,
ctx->split_key_len, CLASS_2 |
KEY_DEST_MDHA_SPLIT | KEY_ENC);
append_key_as_imm(desc, (void *)ctx->key +
ctx->split_key_pad_len, ctx->enckeylen,
ctx->enckeylen, CLASS_1 | KEY_DEST_CLASS_REG);
} else {
append_key(desc, ctx->key_dma, ctx->split_key_len, CLASS_2 |
KEY_DEST_MDHA_SPLIT | KEY_ENC);
append_key(desc, ctx->key_dma + ctx->split_key_pad_len,
ctx->enckeylen, CLASS_1 | KEY_DEST_CLASS_REG);
}
}
static void init_sh_desc_key_aead(u32 *desc, struct caam_ctx *ctx,
int keys_fit_inline)
{
u32 *key_jump_cmd;
init_sh_desc(desc, HDR_SHARE_WAIT);
/* Skip if already shared */
key_jump_cmd = append_jump(desc, JUMP_JSL | JUMP_TEST_ALL |
JUMP_COND_SHRD);
append_key_aead(desc, ctx, keys_fit_inline);
set_jump_tgt_here(desc, key_jump_cmd);
/* Propagate errors from shared to job descriptor */
append_cmd(desc, SET_OK_PROP_ERRORS | CMD_LOAD);
}
static int aead_set_sh_desc(struct crypto_aead *aead)
{
struct aead_tfm *tfm = &aead->base.crt_aead;
struct caam_ctx *ctx = crypto_aead_ctx(aead);
struct device *jrdev = ctx->jrdev;
bool keys_fit_inline = 0;
u32 *key_jump_cmd, *jump_cmd;
u32 geniv, moveiv;
u32 *desc;
if (!ctx->enckeylen || !ctx->authsize)
return 0;
/*
* Job Descriptor and Shared Descriptors
* must all fit into the 64-word Descriptor h/w Buffer
*/
if (DESC_AEAD_ENC_LEN + DESC_JOB_IO_LEN +
ctx->split_key_pad_len + ctx->enckeylen <=
CAAM_DESC_BYTES_MAX)
keys_fit_inline = 1;
/* aead_encrypt shared descriptor */
desc = ctx->sh_desc_enc;
init_sh_desc_key_aead(desc, ctx, keys_fit_inline);
/* Class 2 operation */
append_operation(desc, ctx->class2_alg_type |
OP_ALG_AS_INITFINAL | OP_ALG_ENCRYPT);
/* cryptlen = seqoutlen - authsize */
append_math_sub_imm_u32(desc, REG3, SEQOUTLEN, IMM, ctx->authsize);
/* assoclen + cryptlen = seqinlen - ivsize */
append_math_sub_imm_u32(desc, REG2, SEQINLEN, IMM, tfm->ivsize);
/* assoclen + cryptlen = (assoclen + cryptlen) - cryptlen */
append_math_sub(desc, VARSEQINLEN, REG2, REG3, CAAM_CMD_SZ);
/* read assoc before reading payload */
append_seq_fifo_load(desc, 0, FIFOLD_CLASS_CLASS2 | FIFOLD_TYPE_MSG |
KEY_VLF);
aead_append_ld_iv(desc, tfm->ivsize);
/* Class 1 operation */
append_operation(desc, ctx->class1_alg_type |
OP_ALG_AS_INITFINAL | OP_ALG_ENCRYPT);
/* Read and write cryptlen bytes */
append_math_add(desc, VARSEQINLEN, ZERO, REG3, CAAM_CMD_SZ);
append_math_add(desc, VARSEQOUTLEN, ZERO, REG3, CAAM_CMD_SZ);
aead_append_src_dst(desc, FIFOLD_TYPE_MSG1OUT2);
/* Write ICV */
append_seq_store(desc, ctx->authsize, LDST_CLASS_2_CCB |
LDST_SRCDST_BYTE_CONTEXT);
ctx->sh_desc_enc_dma = dma_map_single(jrdev, desc,
desc_bytes(desc),
DMA_TO_DEVICE);
if (dma_mapping_error(jrdev, ctx->sh_desc_enc_dma)) {
dev_err(jrdev, "unable to map shared descriptor\n");
return -ENOMEM;
}
#ifdef DEBUG
print_hex_dump(KERN_ERR, "aead enc shdesc@"xstr(__LINE__)": ",
DUMP_PREFIX_ADDRESS, 16, 4, desc,
desc_bytes(desc), 1);
#endif
/*
* Job Descriptor and Shared Descriptors
* must all fit into the 64-word Descriptor h/w Buffer
*/
if (DESC_AEAD_DEC_LEN + DESC_JOB_IO_LEN +
ctx->split_key_pad_len + ctx->enckeylen <=
CAAM_DESC_BYTES_MAX)
keys_fit_inline = 1;
desc = ctx->sh_desc_dec;
/* aead_decrypt shared descriptor */
init_sh_desc(desc, HDR_SHARE_WAIT);
/* Skip if already shared */
key_jump_cmd = append_jump(desc, JUMP_JSL | JUMP_TEST_ALL |
JUMP_COND_SHRD);
append_key_aead(desc, ctx, keys_fit_inline);
/* Only propagate error immediately if shared */
jump_cmd = append_jump(desc, JUMP_TEST_ALL);
set_jump_tgt_here(desc, key_jump_cmd);
append_cmd(desc, SET_OK_PROP_ERRORS | CMD_LOAD);
set_jump_tgt_here(desc, jump_cmd);
/* Class 2 operation */
append_operation(desc, ctx->class2_alg_type |
OP_ALG_AS_INITFINAL | OP_ALG_DECRYPT | OP_ALG_ICV_ON);
/* assoclen + cryptlen = seqinlen - ivsize */
append_math_sub_imm_u32(desc, REG3, SEQINLEN, IMM,
ctx->authsize + tfm->ivsize)
/* assoclen = (assoclen + cryptlen) - cryptlen */
append_math_sub(desc, REG2, SEQOUTLEN, REG0, CAAM_CMD_SZ);
append_math_sub(desc, VARSEQINLEN, REG3, REG2, CAAM_CMD_SZ);
/* read assoc before reading payload */
append_seq_fifo_load(desc, 0, FIFOLD_CLASS_CLASS2 | FIFOLD_TYPE_MSG |
KEY_VLF);
aead_append_ld_iv(desc, tfm->ivsize);
append_dec_op1(desc, ctx->class1_alg_type);
/* Read and write cryptlen bytes */
append_math_add(desc, VARSEQINLEN, ZERO, REG2, CAAM_CMD_SZ);
append_math_add(desc, VARSEQOUTLEN, ZERO, REG2, CAAM_CMD_SZ);
aead_append_src_dst(desc, FIFOLD_TYPE_MSG);
/* Load ICV */
append_seq_fifo_load(desc, ctx->authsize, FIFOLD_CLASS_CLASS2 |
FIFOLD_TYPE_LAST2 | FIFOLD_TYPE_ICV);
append_dec_shr_done(desc);
ctx->sh_desc_dec_dma = dma_map_single(jrdev, desc,
desc_bytes(desc),
DMA_TO_DEVICE);
if (dma_mapping_error(jrdev, ctx->sh_desc_dec_dma)) {
dev_err(jrdev, "unable to map shared descriptor\n");
return -ENOMEM;
}
#ifdef DEBUG
print_hex_dump(KERN_ERR, "aead dec shdesc@"xstr(__LINE__)": ",
DUMP_PREFIX_ADDRESS, 16, 4, desc,
desc_bytes(desc), 1);
#endif
/*
* Job Descriptor and Shared Descriptors
* must all fit into the 64-word Descriptor h/w Buffer
*/
if (DESC_AEAD_GIVENC_LEN + DESC_JOB_IO_LEN +
ctx->split_key_pad_len + ctx->enckeylen <=
CAAM_DESC_BYTES_MAX)
keys_fit_inline = 1;
/* aead_givencrypt shared descriptor */
desc = ctx->sh_desc_givenc;
init_sh_desc_key_aead(desc, ctx, keys_fit_inline);
/* Generate IV */
geniv = NFIFOENTRY_STYPE_PAD | NFIFOENTRY_DEST_DECO |
NFIFOENTRY_DTYPE_MSG | NFIFOENTRY_LC1 |
NFIFOENTRY_PTYPE_RND | (tfm->ivsize << NFIFOENTRY_DLEN_SHIFT);
append_load_imm_u32(desc, geniv, LDST_CLASS_IND_CCB |
LDST_SRCDST_WORD_INFO_FIFO | LDST_IMM);
append_cmd(desc, CMD_LOAD | DISABLE_AUTO_INFO_FIFO);
append_move(desc, MOVE_SRC_INFIFO |
MOVE_DEST_CLASS1CTX | (tfm->ivsize << MOVE_LEN_SHIFT));
append_cmd(desc, CMD_LOAD | ENABLE_AUTO_INFO_FIFO);
/* Copy IV to class 1 context */
append_move(desc, MOVE_SRC_CLASS1CTX |
MOVE_DEST_OUTFIFO | (tfm->ivsize << MOVE_LEN_SHIFT));
/* Return to encryption */
append_operation(desc, ctx->class2_alg_type |
OP_ALG_AS_INITFINAL | OP_ALG_ENCRYPT);
/* ivsize + cryptlen = seqoutlen - authsize */
append_math_sub_imm_u32(desc, REG3, SEQOUTLEN, IMM, ctx->authsize);
/* assoclen = seqinlen - (ivsize + cryptlen) */
append_math_sub(desc, VARSEQINLEN, SEQINLEN, REG3, CAAM_CMD_SZ);
/* read assoc before reading payload */
append_seq_fifo_load(desc, 0, FIFOLD_CLASS_CLASS2 | FIFOLD_TYPE_MSG |
KEY_VLF);
/* Copy iv from class 1 ctx to class 2 fifo*/
moveiv = NFIFOENTRY_STYPE_OFIFO | NFIFOENTRY_DEST_CLASS2 |
NFIFOENTRY_DTYPE_MSG | (tfm->ivsize << NFIFOENTRY_DLEN_SHIFT);
append_load_imm_u32(desc, moveiv, LDST_CLASS_IND_CCB |
LDST_SRCDST_WORD_INFO_FIFO | LDST_IMM);
append_load_imm_u32(desc, tfm->ivsize, LDST_CLASS_2_CCB |
LDST_SRCDST_WORD_DATASZ_REG | LDST_IMM);
/* Class 1 operation */
append_operation(desc, ctx->class1_alg_type |
OP_ALG_AS_INITFINAL | OP_ALG_ENCRYPT);
/* Will write ivsize + cryptlen */
append_math_add(desc, VARSEQOUTLEN, SEQINLEN, REG0, CAAM_CMD_SZ);
/* Not need to reload iv */
append_seq_fifo_load(desc, tfm->ivsize,
FIFOLD_CLASS_SKIP);
/* Will read cryptlen */
append_math_add(desc, VARSEQINLEN, SEQINLEN, REG0, CAAM_CMD_SZ);
aead_append_src_dst(desc, FIFOLD_TYPE_MSG1OUT2);
/* Write ICV */
append_seq_store(desc, ctx->authsize, LDST_CLASS_2_CCB |
LDST_SRCDST_BYTE_CONTEXT);
ctx->sh_desc_givenc_dma = dma_map_single(jrdev, desc,
desc_bytes(desc),
DMA_TO_DEVICE);
if (dma_mapping_error(jrdev, ctx->sh_desc_givenc_dma)) {
dev_err(jrdev, "unable to map shared descriptor\n");
return -ENOMEM;
}
#ifdef DEBUG
print_hex_dump(KERN_ERR, "aead givenc shdesc@"xstr(__LINE__)": ",
DUMP_PREFIX_ADDRESS, 16, 4, desc,
desc_bytes(desc), 1);
#endif
return 0;
}
static int aead_setauthsize(struct crypto_aead *authenc,
unsigned int authsize)
{
struct caam_ctx *ctx = crypto_aead_ctx(authenc);
ctx->authsize = authsize;
aead_set_sh_desc(authenc);
return 0;
}
......@@ -117,6 +465,7 @@ static void split_key_done(struct device *dev, u32 *desc, u32 err,
#ifdef DEBUG
dev_err(dev, "%s %d: err 0x%x\n", __func__, __LINE__, err);
#endif
if (err) {
char tmp[CAAM_ERROR_STR_MAX];
......@@ -220,73 +569,7 @@ static u32 gen_split_key(struct caam_ctx *ctx, const u8 *key_in, u32 authkeylen)
return ret;
}
static int build_sh_desc_ipsec(struct caam_ctx *ctx)
{
struct device *jrdev = ctx->jrdev;
u32 *sh_desc;
u32 *jump_cmd;
bool keys_fit_inline = 0;
/*
* largest Job Descriptor and its Shared Descriptor
* must both fit into the 64-word Descriptor h/w Buffer
*/
if ((DESC_AEAD_GIVENCRYPT_TEXT_LEN +
DESC_AEAD_SHARED_TEXT_LEN) * CAAM_CMD_SZ +
ctx->split_key_pad_len + ctx->enckeylen <= CAAM_DESC_BYTES_MAX)
keys_fit_inline = 1;
/* build shared descriptor for this session */
sh_desc = kmalloc(CAAM_CMD_SZ * DESC_AEAD_SHARED_TEXT_LEN +
(keys_fit_inline ?
ctx->split_key_pad_len + ctx->enckeylen :
CAAM_PTR_SZ * 2), GFP_DMA | GFP_KERNEL);
if (!sh_desc) {
dev_err(jrdev, "could not allocate shared descriptor\n");
return -ENOMEM;
}
init_sh_desc(sh_desc, HDR_SAVECTX | HDR_SHARE_SERIAL);
jump_cmd = append_jump(sh_desc, CLASS_BOTH | JUMP_TEST_ALL |
JUMP_COND_SHRD | JUMP_COND_SELF);
/*
* process keys, starting with class 2/authentication.
*/
if (keys_fit_inline) {
append_key_as_imm(sh_desc, ctx->key, ctx->split_key_pad_len,
ctx->split_key_len,
CLASS_2 | KEY_DEST_MDHA_SPLIT | KEY_ENC);
append_key_as_imm(sh_desc, (void *)ctx->key +
ctx->split_key_pad_len, ctx->enckeylen,
ctx->enckeylen, CLASS_1 | KEY_DEST_CLASS_REG);
} else {
append_key(sh_desc, ctx->key_phys, ctx->split_key_len, CLASS_2 |
KEY_DEST_MDHA_SPLIT | KEY_ENC);
append_key(sh_desc, ctx->key_phys + ctx->split_key_pad_len,
ctx->enckeylen, CLASS_1 | KEY_DEST_CLASS_REG);
}
/* update jump cmd now that we are at the jump target */
set_jump_tgt_here(sh_desc, jump_cmd);
ctx->shared_desc_phys = dma_map_single(jrdev, sh_desc,
desc_bytes(sh_desc),
DMA_TO_DEVICE);
if (dma_mapping_error(jrdev, ctx->shared_desc_phys)) {
dev_err(jrdev, "unable to map shared descriptor\n");
kfree(sh_desc);
return -ENOMEM;
}
ctx->sh_desc = sh_desc;
return 0;
}
static int aead_authenc_setkey(struct crypto_aead *aead,
static int aead_setkey(struct crypto_aead *aead,
const u8 *key, unsigned int keylen)
{
/* Sizes for MDHA pads (*not* keys): MD5, SHA1, 224, 256, 384, 512 */
......@@ -326,27 +609,19 @@ static int aead_authenc_setkey(struct crypto_aead *aead,
print_hex_dump(KERN_ERR, "key in @"xstr(__LINE__)": ",
DUMP_PREFIX_ADDRESS, 16, 4, key, keylen, 1);
#endif
ctx->key = kmalloc(ctx->split_key_pad_len + enckeylen,
GFP_KERNEL | GFP_DMA);
if (!ctx->key) {
dev_err(jrdev, "could not allocate key output memory\n");
return -ENOMEM;
}
ret = gen_split_key(ctx, key, authkeylen);
if (ret) {
kfree(ctx->key);
goto badkey;
}
/* postpend encryption key to auth split key */
memcpy(ctx->key + ctx->split_key_pad_len, key + authkeylen, enckeylen);
ctx->key_phys = dma_map_single(jrdev, ctx->key, ctx->split_key_pad_len +
ctx->key_dma = dma_map_single(jrdev, ctx->key, ctx->split_key_pad_len +
enckeylen, DMA_TO_DEVICE);
if (dma_mapping_error(jrdev, ctx->key_phys)) {
if (dma_mapping_error(jrdev, ctx->key_dma)) {
dev_err(jrdev, "unable to map key i/o memory\n");
kfree(ctx->key);
return -ENOMEM;
}
#ifdef DEBUG
......@@ -357,11 +632,10 @@ static int aead_authenc_setkey(struct crypto_aead *aead,
ctx->enckeylen = enckeylen;
ret = build_sh_desc_ipsec(ctx);
ret = aead_set_sh_desc(aead);
if (ret) {
dma_unmap_single(jrdev, ctx->key_phys, ctx->split_key_pad_len +
dma_unmap_single(jrdev, ctx->key_dma, ctx->split_key_pad_len +
enckeylen, DMA_TO_DEVICE);
kfree(ctx->key);
}
return ret;
......@@ -370,6 +644,119 @@ static int aead_authenc_setkey(struct crypto_aead *aead,
return -EINVAL;
}
static int ablkcipher_setkey(struct crypto_ablkcipher *ablkcipher,
const u8 *key, unsigned int keylen)
{
struct caam_ctx *ctx = crypto_ablkcipher_ctx(ablkcipher);
struct ablkcipher_tfm *tfm = &ablkcipher->base.crt_ablkcipher;
struct device *jrdev = ctx->jrdev;
int ret = 0;
u32 *key_jump_cmd, *jump_cmd;
u32 *desc;
#ifdef DEBUG
print_hex_dump(KERN_ERR, "key in @"xstr(__LINE__)": ",
DUMP_PREFIX_ADDRESS, 16, 4, key, keylen, 1);
#endif
memcpy(ctx->key, key, keylen);
ctx->key_dma = dma_map_single(jrdev, ctx->key, keylen,
DMA_TO_DEVICE);
if (dma_mapping_error(jrdev, ctx->key_dma)) {
dev_err(jrdev, "unable to map key i/o memory\n");
return -ENOMEM;
}
ctx->enckeylen = keylen;
/* ablkcipher_encrypt shared descriptor */
desc = ctx->sh_desc_enc;
init_sh_desc(desc, HDR_SHARE_WAIT);
/* Skip if already shared */
key_jump_cmd = append_jump(desc, JUMP_JSL | JUMP_TEST_ALL |
JUMP_COND_SHRD);
/* Load class1 key only */
append_key_as_imm(desc, (void *)ctx->key, ctx->enckeylen,
ctx->enckeylen, CLASS_1 |
KEY_DEST_CLASS_REG);
set_jump_tgt_here(desc, key_jump_cmd);
/* Propagate errors from shared to job descriptor */
append_cmd(desc, SET_OK_PROP_ERRORS | CMD_LOAD);
/* Load iv */
append_cmd(desc, CMD_SEQ_LOAD | LDST_SRCDST_BYTE_CONTEXT |
LDST_CLASS_1_CCB | tfm->ivsize);
/* Load operation */
append_operation(desc, ctx->class1_alg_type |
OP_ALG_AS_INITFINAL | OP_ALG_ENCRYPT);
/* Perform operation */
ablkcipher_append_src_dst(desc);
ctx->sh_desc_enc_dma = dma_map_single(jrdev, desc,
desc_bytes(desc),
DMA_TO_DEVICE);
if (dma_mapping_error(jrdev, ctx->sh_desc_enc_dma)) {
dev_err(jrdev, "unable to map shared descriptor\n");
return -ENOMEM;
}
#ifdef DEBUG
print_hex_dump(KERN_ERR, "ablkcipher enc shdesc@"xstr(__LINE__)": ",
DUMP_PREFIX_ADDRESS, 16, 4, desc,
desc_bytes(desc), 1);
#endif
/* ablkcipher_decrypt shared descriptor */
desc = ctx->sh_desc_dec;
init_sh_desc(desc, HDR_SHARE_WAIT);
/* Skip if already shared */
key_jump_cmd = append_jump(desc, JUMP_JSL | JUMP_TEST_ALL |
JUMP_COND_SHRD);
/* Load class1 key only */
append_key_as_imm(desc, (void *)ctx->key, ctx->enckeylen,
ctx->enckeylen, CLASS_1 |
KEY_DEST_CLASS_REG);
/* For aead, only propagate error immediately if shared */
jump_cmd = append_jump(desc, JUMP_TEST_ALL);
set_jump_tgt_here(desc, key_jump_cmd);
append_cmd(desc, SET_OK_PROP_ERRORS | CMD_LOAD);
set_jump_tgt_here(desc, jump_cmd);
/* load IV */
append_cmd(desc, CMD_SEQ_LOAD | LDST_SRCDST_BYTE_CONTEXT |
LDST_CLASS_1_CCB | tfm->ivsize);
/* Choose operation */
append_dec_op1(desc, ctx->class1_alg_type);
/* Perform operation */
ablkcipher_append_src_dst(desc);
/* Wait for key to load before allowing propagating error */
append_dec_shr_done(desc);
ctx->sh_desc_dec_dma = dma_map_single(jrdev, desc,
desc_bytes(desc),
DMA_TO_DEVICE);
if (dma_mapping_error(jrdev, ctx->sh_desc_enc_dma)) {
dev_err(jrdev, "unable to map shared descriptor\n");
return -ENOMEM;
}
#ifdef DEBUG
print_hex_dump(KERN_ERR, "ablkcipher dec shdesc@"xstr(__LINE__)": ",
DUMP_PREFIX_ADDRESS, 16, 4, desc,
desc_bytes(desc), 1);
#endif
return ret;
}
struct link_tbl_entry {
u64 ptr;
u32 len;
......@@ -379,64 +766,109 @@ struct link_tbl_entry {
};
/*
* ipsec_esp_edesc - s/w-extended ipsec_esp descriptor
* aead_edesc - s/w-extended aead descriptor
* @assoc_nents: number of segments in associated data (SPI+Seq) scatterlist
* @src_nents: number of segments in input scatterlist
* @dst_nents: number of segments in output scatterlist
* @assoc_nents: number of segments in associated data (SPI+Seq) scatterlist
* @iv_dma: dma address of iv for checking continuity and link table
* @desc: h/w descriptor (variable length; must not exceed MAX_CAAM_DESCSIZE)
* @link_tbl_bytes: length of dma mapped link_tbl space
* @link_tbl_dma: bus physical mapped address of h/w link table
* @hw_desc: the h/w job descriptor followed by any referenced link tables
*/
struct ipsec_esp_edesc {
struct aead_edesc {
int assoc_nents;
int src_nents;
int dst_nents;
dma_addr_t iv_dma;
int link_tbl_bytes;
dma_addr_t link_tbl_dma;
struct link_tbl_entry *link_tbl;
u32 hw_desc[0];
};
static void ipsec_esp_unmap(struct device *dev,
struct ipsec_esp_edesc *edesc,
struct aead_request *areq)
{
dma_unmap_sg(dev, areq->assoc, edesc->assoc_nents, DMA_TO_DEVICE);
/*
* ablkcipher_edesc - s/w-extended ablkcipher descriptor
* @src_nents: number of segments in input scatterlist
* @dst_nents: number of segments in output scatterlist
* @iv_dma: dma address of iv for checking continuity and link table
* @desc: h/w descriptor (variable length; must not exceed MAX_CAAM_DESCSIZE)
* @link_tbl_bytes: length of dma mapped link_tbl space
* @link_tbl_dma: bus physical mapped address of h/w link table
* @hw_desc: the h/w job descriptor followed by any referenced link tables
*/
struct ablkcipher_edesc {
int src_nents;
int dst_nents;
dma_addr_t iv_dma;
int link_tbl_bytes;
dma_addr_t link_tbl_dma;
struct link_tbl_entry *link_tbl;
u32 hw_desc[0];
};
if (unlikely(areq->dst != areq->src)) {
dma_unmap_sg(dev, areq->src, edesc->src_nents,
DMA_TO_DEVICE);
dma_unmap_sg(dev, areq->dst, edesc->dst_nents,
DMA_FROM_DEVICE);
static void caam_unmap(struct device *dev, struct scatterlist *src,
struct scatterlist *dst, int src_nents, int dst_nents,
dma_addr_t iv_dma, int ivsize, dma_addr_t link_tbl_dma,
int link_tbl_bytes)
{
if (unlikely(dst != src)) {
dma_unmap_sg(dev, src, src_nents, DMA_TO_DEVICE);
dma_unmap_sg(dev, dst, dst_nents, DMA_FROM_DEVICE);
} else {
dma_unmap_sg(dev, areq->src, edesc->src_nents,
DMA_BIDIRECTIONAL);
dma_unmap_sg(dev, src, src_nents, DMA_BIDIRECTIONAL);
}
if (edesc->link_tbl_bytes)
dma_unmap_single(dev, edesc->link_tbl_dma,
edesc->link_tbl_bytes,
if (iv_dma)
dma_unmap_single(dev, iv_dma, ivsize, DMA_TO_DEVICE);
if (link_tbl_bytes)
dma_unmap_single(dev, link_tbl_dma, link_tbl_bytes,
DMA_TO_DEVICE);
}
/*
* ipsec_esp descriptor callbacks
*/
static void ipsec_esp_encrypt_done(struct device *jrdev, u32 *desc, u32 err,
static void aead_unmap(struct device *dev,
struct aead_edesc *edesc,
struct aead_request *req)
{
struct crypto_aead *aead = crypto_aead_reqtfm(req);
int ivsize = crypto_aead_ivsize(aead);
dma_unmap_sg(dev, req->assoc, edesc->assoc_nents, DMA_TO_DEVICE);
caam_unmap(dev, req->src, req->dst,
edesc->src_nents, edesc->dst_nents,
edesc->iv_dma, ivsize, edesc->link_tbl_dma,
edesc->link_tbl_bytes);
}
static void ablkcipher_unmap(struct device *dev,
struct ablkcipher_edesc *edesc,
struct ablkcipher_request *req)
{
struct crypto_ablkcipher *ablkcipher = crypto_ablkcipher_reqtfm(req);
int ivsize = crypto_ablkcipher_ivsize(ablkcipher);
caam_unmap(dev, req->src, req->dst,
edesc->src_nents, edesc->dst_nents,
edesc->iv_dma, ivsize, edesc->link_tbl_dma,
edesc->link_tbl_bytes);
}
static void aead_encrypt_done(struct device *jrdev, u32 *desc, u32 err,
void *context)
{
struct aead_request *areq = context;
struct ipsec_esp_edesc *edesc;
struct aead_request *req = context;
struct aead_edesc *edesc;
#ifdef DEBUG
struct crypto_aead *aead = crypto_aead_reqtfm(areq);
int ivsize = crypto_aead_ivsize(aead);
struct crypto_aead *aead = crypto_aead_reqtfm(req);
struct caam_ctx *ctx = crypto_aead_ctx(aead);
int ivsize = crypto_aead_ivsize(aead);
dev_err(jrdev, "%s %d: err 0x%x\n", __func__, __LINE__, err);
#endif
edesc = (struct ipsec_esp_edesc *)((char *)desc -
offsetof(struct ipsec_esp_edesc, hw_desc));
edesc = (struct aead_edesc *)((char *)desc -
offsetof(struct aead_edesc, hw_desc));
if (err) {
char tmp[CAAM_ERROR_STR_MAX];
......@@ -444,39 +876,50 @@ static void ipsec_esp_encrypt_done(struct device *jrdev, u32 *desc, u32 err,
dev_err(jrdev, "%08x: %s\n", err, caam_jr_strstatus(tmp, err));
}
ipsec_esp_unmap(jrdev, edesc, areq);
aead_unmap(jrdev, edesc, req);
#ifdef DEBUG
print_hex_dump(KERN_ERR, "assoc @"xstr(__LINE__)": ",
DUMP_PREFIX_ADDRESS, 16, 4, sg_virt(areq->assoc),
areq->assoclen , 1);
DUMP_PREFIX_ADDRESS, 16, 4, sg_virt(req->assoc),
req->assoclen , 1);
print_hex_dump(KERN_ERR, "dstiv @"xstr(__LINE__)": ",
DUMP_PREFIX_ADDRESS, 16, 4, sg_virt(areq->src) - ivsize,
DUMP_PREFIX_ADDRESS, 16, 4, sg_virt(req->src) - ivsize,
edesc->src_nents ? 100 : ivsize, 1);
print_hex_dump(KERN_ERR, "dst @"xstr(__LINE__)": ",
DUMP_PREFIX_ADDRESS, 16, 4, sg_virt(areq->src),
edesc->src_nents ? 100 : areq->cryptlen +
DUMP_PREFIX_ADDRESS, 16, 4, sg_virt(req->src),
edesc->src_nents ? 100 : req->cryptlen +
ctx->authsize + 4, 1);
#endif
kfree(edesc);
aead_request_complete(areq, err);
aead_request_complete(req, err);
}
static void ipsec_esp_decrypt_done(struct device *jrdev, u32 *desc, u32 err,
static void aead_decrypt_done(struct device *jrdev, u32 *desc, u32 err,
void *context)
{
struct aead_request *areq = context;
struct ipsec_esp_edesc *edesc;
struct aead_request *req = context;
struct aead_edesc *edesc;
#ifdef DEBUG
struct crypto_aead *aead = crypto_aead_reqtfm(areq);
struct crypto_aead *aead = crypto_aead_reqtfm(req);
struct caam_ctx *ctx = crypto_aead_ctx(aead);
int ivsize = crypto_aead_ivsize(aead);
dev_err(jrdev, "%s %d: err 0x%x\n", __func__, __LINE__, err);
#endif
edesc = (struct ipsec_esp_edesc *)((char *)desc -
offsetof(struct ipsec_esp_edesc, hw_desc));
edesc = (struct aead_edesc *)((char *)desc -
offsetof(struct aead_edesc, hw_desc));
#ifdef DEBUG
print_hex_dump(KERN_ERR, "dstiv @"xstr(__LINE__)": ",
DUMP_PREFIX_ADDRESS, 16, 4, req->iv,
ivsize, 1);
print_hex_dump(KERN_ERR, "dst @"xstr(__LINE__)": ",
DUMP_PREFIX_ADDRESS, 16, 4, sg_virt(req->dst),
req->cryptlen, 1);
#endif
if (err) {
char tmp[CAAM_ERROR_STR_MAX];
......@@ -484,7 +927,7 @@ static void ipsec_esp_decrypt_done(struct device *jrdev, u32 *desc, u32 err,
dev_err(jrdev, "%08x: %s\n", err, caam_jr_strstatus(tmp, err));
}
ipsec_esp_unmap(jrdev, edesc, areq);
aead_unmap(jrdev, edesc, req);
/*
* verify hw auth check passed else return -EBADMSG
......@@ -495,255 +938,413 @@ static void ipsec_esp_decrypt_done(struct device *jrdev, u32 *desc, u32 err,
#ifdef DEBUG
print_hex_dump(KERN_ERR, "iphdrout@"xstr(__LINE__)": ",
DUMP_PREFIX_ADDRESS, 16, 4,
((char *)sg_virt(areq->assoc) - sizeof(struct iphdr)),
sizeof(struct iphdr) + areq->assoclen +
((areq->cryptlen > 1500) ? 1500 : areq->cryptlen) +
((char *)sg_virt(req->assoc) - sizeof(struct iphdr)),
sizeof(struct iphdr) + req->assoclen +
((req->cryptlen > 1500) ? 1500 : req->cryptlen) +
ctx->authsize + 36, 1);
if (!err && edesc->link_tbl_bytes) {
struct scatterlist *sg = sg_last(areq->src, edesc->src_nents);
struct scatterlist *sg = sg_last(req->src, edesc->src_nents);
print_hex_dump(KERN_ERR, "sglastout@"xstr(__LINE__)": ",
DUMP_PREFIX_ADDRESS, 16, 4, sg_virt(sg),
sg->length + ctx->authsize + 16, 1);
}
#endif
kfree(edesc);
aead_request_complete(areq, err);
aead_request_complete(req, err);
}
static void ablkcipher_encrypt_done(struct device *jrdev, u32 *desc, u32 err,
void *context)
{
struct ablkcipher_request *req = context;
struct ablkcipher_edesc *edesc;
#ifdef DEBUG
struct crypto_ablkcipher *ablkcipher = crypto_ablkcipher_reqtfm(req);
int ivsize = crypto_ablkcipher_ivsize(ablkcipher);
dev_err(jrdev, "%s %d: err 0x%x\n", __func__, __LINE__, err);
#endif
edesc = (struct ablkcipher_edesc *)((char *)desc -
offsetof(struct ablkcipher_edesc, hw_desc));
if (err) {
char tmp[CAAM_ERROR_STR_MAX];
dev_err(jrdev, "%08x: %s\n", err, caam_jr_strstatus(tmp, err));
}
#ifdef DEBUG
print_hex_dump(KERN_ERR, "dstiv @"xstr(__LINE__)": ",
DUMP_PREFIX_ADDRESS, 16, 4, req->info,
edesc->src_nents > 1 ? 100 : ivsize, 1);
print_hex_dump(KERN_ERR, "dst @"xstr(__LINE__)": ",
DUMP_PREFIX_ADDRESS, 16, 4, sg_virt(req->src),
edesc->dst_nents > 1 ? 100 : req->nbytes, 1);
#endif
ablkcipher_unmap(jrdev, edesc, req);
kfree(edesc);
ablkcipher_request_complete(req, err);
}
static void ablkcipher_decrypt_done(struct device *jrdev, u32 *desc, u32 err,
void *context)
{
struct ablkcipher_request *req = context;
struct ablkcipher_edesc *edesc;
#ifdef DEBUG
struct crypto_ablkcipher *ablkcipher = crypto_ablkcipher_reqtfm(req);
int ivsize = crypto_ablkcipher_ivsize(ablkcipher);
dev_err(jrdev, "%s %d: err 0x%x\n", __func__, __LINE__, err);
#endif
edesc = (struct ablkcipher_edesc *)((char *)desc -
offsetof(struct ablkcipher_edesc, hw_desc));
if (err) {
char tmp[CAAM_ERROR_STR_MAX];
dev_err(jrdev, "%08x: %s\n", err, caam_jr_strstatus(tmp, err));
}
#ifdef DEBUG
print_hex_dump(KERN_ERR, "dstiv @"xstr(__LINE__)": ",
DUMP_PREFIX_ADDRESS, 16, 4, req->info,
ivsize, 1);
print_hex_dump(KERN_ERR, "dst @"xstr(__LINE__)": ",
DUMP_PREFIX_ADDRESS, 16, 4, sg_virt(req->src),
edesc->dst_nents > 1 ? 100 : req->nbytes, 1);
#endif
ablkcipher_unmap(jrdev, edesc, req);
kfree(edesc);
ablkcipher_request_complete(req, err);
}
static void sg_to_link_tbl_one(struct link_tbl_entry *link_tbl_ptr,
dma_addr_t dma, u32 len, u32 offset)
{
link_tbl_ptr->ptr = dma;
link_tbl_ptr->len = len;
link_tbl_ptr->reserved = 0;
link_tbl_ptr->buf_pool_id = 0;
link_tbl_ptr->offset = offset;
#ifdef DEBUG
print_hex_dump(KERN_ERR, "link_tbl_ptr@"xstr(__LINE__)": ",
DUMP_PREFIX_ADDRESS, 16, 4, link_tbl_ptr,
sizeof(struct link_tbl_entry), 1);
#endif
}
/*
* convert scatterlist to h/w link table format
* scatterlist must have been previously dma mapped
* but does not have final bit; instead, returns last entry
*/
static void sg_to_link_tbl(struct scatterlist *sg, int sg_count,
struct link_tbl_entry *link_tbl_ptr, u32 offset)
static struct link_tbl_entry *sg_to_link_tbl(struct scatterlist *sg,
int sg_count, struct link_tbl_entry
*link_tbl_ptr, u32 offset)
{
while (sg_count) {
link_tbl_ptr->ptr = sg_dma_address(sg);
link_tbl_ptr->len = sg_dma_len(sg);
link_tbl_ptr->reserved = 0;
link_tbl_ptr->buf_pool_id = 0;
link_tbl_ptr->offset = offset;
sg_to_link_tbl_one(link_tbl_ptr, sg_dma_address(sg),
sg_dma_len(sg), offset);
link_tbl_ptr++;
sg = sg_next(sg);
sg_count--;
}
return link_tbl_ptr - 1;
}
/*
* convert scatterlist to h/w link table format
* scatterlist must have been previously dma mapped
*/
static void sg_to_link_tbl_last(struct scatterlist *sg, int sg_count,
struct link_tbl_entry *link_tbl_ptr, u32 offset)
{
link_tbl_ptr = sg_to_link_tbl(sg, sg_count, link_tbl_ptr, offset);
link_tbl_ptr->len |= 0x40000000;
}
/*
* Fill in aead job descriptor
*/
static void init_aead_job(u32 *sh_desc, dma_addr_t ptr,
struct aead_edesc *edesc,
struct aead_request *req,
bool all_contig, bool encrypt)
{
struct crypto_aead *aead = crypto_aead_reqtfm(req);
struct caam_ctx *ctx = crypto_aead_ctx(aead);
int ivsize = crypto_aead_ivsize(aead);
int authsize = ctx->authsize;
u32 *desc = edesc->hw_desc;
u32 out_options = 0, in_options;
dma_addr_t dst_dma, src_dma;
int len, link_tbl_index = 0;
#ifdef DEBUG
debug("assoclen %d cryptlen %d authsize %d\n",
req->assoclen, req->cryptlen, authsize);
print_hex_dump(KERN_ERR, "assoc @"xstr(__LINE__)": ",
DUMP_PREFIX_ADDRESS, 16, 4, sg_virt(req->assoc),
req->assoclen , 1);
print_hex_dump(KERN_ERR, "presciv@"xstr(__LINE__)": ",
DUMP_PREFIX_ADDRESS, 16, 4, req->iv,
edesc->src_nents ? 100 : ivsize, 1);
print_hex_dump(KERN_ERR, "src @"xstr(__LINE__)": ",
DUMP_PREFIX_ADDRESS, 16, 4, sg_virt(req->src),
edesc->src_nents ? 100 : req->cryptlen, 1);
print_hex_dump(KERN_ERR, "shrdesc@"xstr(__LINE__)": ",
DUMP_PREFIX_ADDRESS, 16, 4, sh_desc,
desc_bytes(sh_desc), 1);
#endif
len = desc_len(sh_desc);
init_job_desc_shared(desc, ptr, len, HDR_SHARE_DEFER | HDR_REVERSE);
if (all_contig) {
src_dma = sg_dma_address(req->assoc);
in_options = 0;
} else {
src_dma = edesc->link_tbl_dma;
link_tbl_index += (edesc->assoc_nents ? : 1) + 1 +
(edesc->src_nents ? : 1);
in_options = LDST_SGF;
}
if (encrypt)
append_seq_in_ptr(desc, src_dma, req->assoclen + ivsize +
req->cryptlen - authsize, in_options);
else
append_seq_in_ptr(desc, src_dma, req->assoclen + ivsize +
req->cryptlen, in_options);
/* set Final bit (marks end of link table) */
link_tbl_ptr--;
link_tbl_ptr->len |= 0x40000000;
if (likely(req->src == req->dst)) {
if (all_contig) {
dst_dma = sg_dma_address(req->src);
} else {
dst_dma = src_dma + sizeof(struct link_tbl_entry) *
((edesc->assoc_nents ? : 1) + 1);
out_options = LDST_SGF;
}
} else {
if (!edesc->dst_nents) {
dst_dma = sg_dma_address(req->dst);
} else {
dst_dma = edesc->link_tbl_dma +
link_tbl_index *
sizeof(struct link_tbl_entry);
out_options = LDST_SGF;
}
}
if (encrypt)
append_seq_out_ptr(desc, dst_dma, req->cryptlen, out_options);
else
append_seq_out_ptr(desc, dst_dma, req->cryptlen - authsize,
out_options);
}
/*
* fill in and submit ipsec_esp job descriptor
* Fill in aead givencrypt job descriptor
*/
static int ipsec_esp(struct ipsec_esp_edesc *edesc, struct aead_request *areq,
u32 encrypt,
void (*callback) (struct device *dev, u32 *desc,
u32 err, void *context))
static void init_aead_giv_job(u32 *sh_desc, dma_addr_t ptr,
struct aead_edesc *edesc,
struct aead_request *req,
int contig)
{
struct crypto_aead *aead = crypto_aead_reqtfm(areq);
struct crypto_aead *aead = crypto_aead_reqtfm(req);
struct caam_ctx *ctx = crypto_aead_ctx(aead);
struct device *jrdev = ctx->jrdev;
u32 *desc = edesc->hw_desc, options;
int ret, sg_count, assoc_sg_count;
int ivsize = crypto_aead_ivsize(aead);
int authsize = ctx->authsize;
dma_addr_t ptr, dst_dma, src_dma;
#ifdef DEBUG
u32 *sh_desc = ctx->sh_desc;
u32 *desc = edesc->hw_desc;
u32 out_options = 0, in_options;
dma_addr_t dst_dma, src_dma;
int len, link_tbl_index = 0;
#ifdef DEBUG
debug("assoclen %d cryptlen %d authsize %d\n",
areq->assoclen, areq->cryptlen, authsize);
req->assoclen, req->cryptlen, authsize);
print_hex_dump(KERN_ERR, "assoc @"xstr(__LINE__)": ",
DUMP_PREFIX_ADDRESS, 16, 4, sg_virt(areq->assoc),
areq->assoclen , 1);
DUMP_PREFIX_ADDRESS, 16, 4, sg_virt(req->assoc),
req->assoclen , 1);
print_hex_dump(KERN_ERR, "presciv@"xstr(__LINE__)": ",
DUMP_PREFIX_ADDRESS, 16, 4, sg_virt(areq->src) - ivsize,
edesc->src_nents ? 100 : ivsize, 1);
DUMP_PREFIX_ADDRESS, 16, 4, req->iv, ivsize, 1);
print_hex_dump(KERN_ERR, "src @"xstr(__LINE__)": ",
DUMP_PREFIX_ADDRESS, 16, 4, sg_virt(areq->src),
edesc->src_nents ? 100 : areq->cryptlen + authsize, 1);
DUMP_PREFIX_ADDRESS, 16, 4, sg_virt(req->src),
edesc->src_nents > 1 ? 100 : req->cryptlen, 1);
print_hex_dump(KERN_ERR, "shrdesc@"xstr(__LINE__)": ",
DUMP_PREFIX_ADDRESS, 16, 4, sh_desc,
desc_bytes(sh_desc), 1);
#endif
assoc_sg_count = dma_map_sg(jrdev, areq->assoc, edesc->assoc_nents ?: 1,
DMA_TO_DEVICE);
if (areq->src == areq->dst)
sg_count = dma_map_sg(jrdev, areq->src, edesc->src_nents ? : 1,
DMA_BIDIRECTIONAL);
else
sg_count = dma_map_sg(jrdev, areq->src, edesc->src_nents ? : 1,
DMA_TO_DEVICE);
/* start auth operation */
append_operation(desc, ctx->class2_alg_type | OP_ALG_AS_INITFINAL |
(encrypt ? : OP_ALG_ICV_ON));
len = desc_len(sh_desc);
init_job_desc_shared(desc, ptr, len, HDR_SHARE_DEFER | HDR_REVERSE);
/* Load FIFO with data for Class 2 CHA */
options = FIFOLD_CLASS_CLASS2 | FIFOLD_TYPE_MSG;
if (!edesc->assoc_nents) {
ptr = sg_dma_address(areq->assoc);
if (contig & GIV_SRC_CONTIG) {
src_dma = sg_dma_address(req->assoc);
in_options = 0;
} else {
sg_to_link_tbl(areq->assoc, edesc->assoc_nents,
edesc->link_tbl, 0);
ptr = edesc->link_tbl_dma;
options |= LDST_SGF;
src_dma = edesc->link_tbl_dma;
link_tbl_index += edesc->assoc_nents + 1 + edesc->src_nents;
in_options = LDST_SGF;
}
append_fifo_load(desc, ptr, areq->assoclen, options);
/* copy iv from cipher/class1 input context to class2 infifo */
append_move(desc, MOVE_SRC_CLASS1CTX | MOVE_DEST_CLASS2INFIFO | ivsize);
if (!encrypt) {
u32 *jump_cmd, *uncond_jump_cmd;
/* JUMP if shared */
jump_cmd = append_jump(desc, JUMP_TEST_ALL | JUMP_COND_SHRD);
append_seq_in_ptr(desc, src_dma, req->assoclen + ivsize +
req->cryptlen - authsize, in_options);
/* start class 1 (cipher) operation, non-shared version */
append_operation(desc, ctx->class1_alg_type |
OP_ALG_AS_INITFINAL);
uncond_jump_cmd = append_jump(desc, 0);
set_jump_tgt_here(desc, jump_cmd);
/* start class 1 (cipher) operation, shared version */
append_operation(desc, ctx->class1_alg_type |
OP_ALG_AS_INITFINAL | OP_ALG_AAI_DK);
set_jump_tgt_here(desc, uncond_jump_cmd);
} else
append_operation(desc, ctx->class1_alg_type |
OP_ALG_AS_INITFINAL | encrypt);
/* load payload & instruct to class2 to snoop class 1 if encrypting */
options = 0;
if (!edesc->src_nents) {
src_dma = sg_dma_address(areq->src);
if (contig & GIV_DST_CONTIG) {
dst_dma = edesc->iv_dma;
} else {
sg_to_link_tbl(areq->src, edesc->src_nents, edesc->link_tbl +
edesc->assoc_nents, 0);
src_dma = edesc->link_tbl_dma + edesc->assoc_nents *
sizeof(struct link_tbl_entry);
options |= LDST_SGF;
}
append_seq_in_ptr(desc, src_dma, areq->cryptlen + authsize, options);
append_seq_fifo_load(desc, areq->cryptlen, FIFOLD_CLASS_BOTH |
FIFOLD_TYPE_LASTBOTH |
(encrypt ? FIFOLD_TYPE_MSG1OUT2
: FIFOLD_TYPE_MSG));
/* specify destination */
if (areq->src == areq->dst) {
dst_dma = src_dma;
} else {
sg_count = dma_map_sg(jrdev, areq->dst, edesc->dst_nents ? : 1,
DMA_FROM_DEVICE);
if (!edesc->dst_nents) {
dst_dma = sg_dma_address(areq->dst);
options = 0;
if (likely(req->src == req->dst)) {
dst_dma = src_dma + sizeof(struct link_tbl_entry) *
edesc->assoc_nents;
out_options = LDST_SGF;
} else {
sg_to_link_tbl(areq->dst, edesc->dst_nents,
edesc->link_tbl + edesc->assoc_nents +
edesc->src_nents, 0);
dst_dma = edesc->link_tbl_dma + (edesc->assoc_nents +
edesc->src_nents) *
dst_dma = edesc->link_tbl_dma +
link_tbl_index *
sizeof(struct link_tbl_entry);
options = LDST_SGF;
out_options = LDST_SGF;
}
}
append_seq_out_ptr(desc, dst_dma, areq->cryptlen + authsize, options);
append_seq_fifo_store(desc, areq->cryptlen, FIFOST_TYPE_MESSAGE_DATA);
/* ICV */
if (encrypt)
append_seq_store(desc, authsize, LDST_CLASS_2_CCB |
LDST_SRCDST_BYTE_CONTEXT);
else
append_seq_fifo_load(desc, authsize, FIFOLD_CLASS_CLASS2 |
FIFOLD_TYPE_LAST2 | FIFOLD_TYPE_ICV);
append_seq_out_ptr(desc, dst_dma, ivsize + req->cryptlen, out_options);
}
/*
* Fill in ablkcipher job descriptor
*/
static void init_ablkcipher_job(u32 *sh_desc, dma_addr_t ptr,
struct ablkcipher_edesc *edesc,
struct ablkcipher_request *req,
bool iv_contig)
{
struct crypto_ablkcipher *ablkcipher = crypto_ablkcipher_reqtfm(req);
int ivsize = crypto_ablkcipher_ivsize(ablkcipher);
u32 *desc = edesc->hw_desc;
u32 out_options = 0, in_options;
dma_addr_t dst_dma, src_dma;
int len, link_tbl_index = 0;
#ifdef DEBUG
debug("job_desc_len %d\n", desc_len(desc));
print_hex_dump(KERN_ERR, "jobdesc@"xstr(__LINE__)": ",
DUMP_PREFIX_ADDRESS, 16, 4, desc, desc_bytes(desc) , 1);
print_hex_dump(KERN_ERR, "jdlinkt@"xstr(__LINE__)": ",
DUMP_PREFIX_ADDRESS, 16, 4, edesc->link_tbl,
edesc->link_tbl_bytes, 1);
print_hex_dump(KERN_ERR, "presciv@"xstr(__LINE__)": ",
DUMP_PREFIX_ADDRESS, 16, 4, req->info,
ivsize, 1);
print_hex_dump(KERN_ERR, "src @"xstr(__LINE__)": ",
DUMP_PREFIX_ADDRESS, 16, 4, sg_virt(req->src),
edesc->src_nents ? 100 : req->nbytes, 1);
#endif
ret = caam_jr_enqueue(jrdev, desc, callback, areq);
if (!ret)
ret = -EINPROGRESS;
else {
ipsec_esp_unmap(jrdev, edesc, areq);
kfree(edesc);
len = desc_len(sh_desc);
init_job_desc_shared(desc, ptr, len, HDR_SHARE_DEFER | HDR_REVERSE);
if (iv_contig) {
src_dma = edesc->iv_dma;
in_options = 0;
} else {
src_dma = edesc->link_tbl_dma;
link_tbl_index += (iv_contig ? 0 : 1) + edesc->src_nents;
in_options = LDST_SGF;
}
append_seq_in_ptr(desc, src_dma, req->nbytes + ivsize, in_options);
return ret;
if (likely(req->src == req->dst)) {
if (!edesc->src_nents && iv_contig) {
dst_dma = sg_dma_address(req->src);
} else {
dst_dma = edesc->link_tbl_dma +
sizeof(struct link_tbl_entry);
out_options = LDST_SGF;
}
} else {
if (!edesc->dst_nents) {
dst_dma = sg_dma_address(req->dst);
} else {
dst_dma = edesc->link_tbl_dma +
link_tbl_index * sizeof(struct link_tbl_entry);
out_options = LDST_SGF;
}
}
append_seq_out_ptr(desc, dst_dma, req->nbytes, out_options);
}
/*
* derive number of elements in scatterlist
*/
static int sg_count(struct scatterlist *sg_list, int nbytes, int *chained)
static int sg_count(struct scatterlist *sg_list, int nbytes)
{
struct scatterlist *sg = sg_list;
int sg_nents = 0;
*chained = 0;
while (nbytes > 0) {
sg_nents++;
nbytes -= sg->length;
if (!sg_is_last(sg) && (sg + 1)->length == 0)
*chained = 1;
BUG(); /* Not support chaining */
sg = scatterwalk_sg_next(sg);
}
if (likely(sg_nents == 1))
return 0;
return sg_nents;
}
/*
* allocate and map the ipsec_esp extended descriptor
* allocate and map the aead extended descriptor
*/
static struct ipsec_esp_edesc *ipsec_esp_edesc_alloc(struct aead_request *areq,
int desc_bytes)
static struct aead_edesc *aead_edesc_alloc(struct aead_request *req,
int desc_bytes, bool *all_contig_ptr)
{
struct crypto_aead *aead = crypto_aead_reqtfm(areq);
struct crypto_aead *aead = crypto_aead_reqtfm(req);
struct caam_ctx *ctx = crypto_aead_ctx(aead);
struct device *jrdev = ctx->jrdev;
gfp_t flags = areq->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP ? GFP_KERNEL :
GFP_ATOMIC;
int assoc_nents, src_nents, dst_nents = 0, chained, link_tbl_bytes;
struct ipsec_esp_edesc *edesc;
assoc_nents = sg_count(areq->assoc, areq->assoclen, &chained);
BUG_ON(chained);
if (likely(assoc_nents == 1))
assoc_nents = 0;
src_nents = sg_count(areq->src, areq->cryptlen + ctx->authsize,
&chained);
BUG_ON(chained);
if (src_nents == 1)
src_nents = 0;
if (unlikely(areq->dst != areq->src)) {
dst_nents = sg_count(areq->dst, areq->cryptlen + ctx->authsize,
&chained);
BUG_ON(chained);
if (dst_nents == 1)
dst_nents = 0;
gfp_t flags = (req->base.flags & (CRYPTO_TFM_REQ_MAY_BACKLOG |
CRYPTO_TFM_REQ_MAY_SLEEP)) ? GFP_KERNEL : GFP_ATOMIC;
int assoc_nents, src_nents, dst_nents = 0;
struct aead_edesc *edesc;
dma_addr_t iv_dma = 0;
int sgc;
bool all_contig = true;
int ivsize = crypto_aead_ivsize(aead);
int link_tbl_index, link_tbl_len = 0, link_tbl_bytes;
assoc_nents = sg_count(req->assoc, req->assoclen);
src_nents = sg_count(req->src, req->cryptlen);
if (unlikely(req->dst != req->src))
dst_nents = sg_count(req->dst, req->cryptlen);
sgc = dma_map_sg(jrdev, req->assoc, assoc_nents ? : 1,
DMA_BIDIRECTIONAL);
if (likely(req->src == req->dst)) {
sgc = dma_map_sg(jrdev, req->src, src_nents ? : 1,
DMA_BIDIRECTIONAL);
} else {
sgc = dma_map_sg(jrdev, req->src, src_nents ? : 1,
DMA_TO_DEVICE);
sgc = dma_map_sg(jrdev, req->dst, dst_nents ? : 1,
DMA_FROM_DEVICE);
}
link_tbl_bytes = (assoc_nents + src_nents + dst_nents) *
sizeof(struct link_tbl_entry);
debug("link_tbl_bytes %d\n", link_tbl_bytes);
/* Check if data are contiguous */
iv_dma = dma_map_single(jrdev, req->iv, ivsize, DMA_TO_DEVICE);
if (assoc_nents || sg_dma_address(req->assoc) + req->assoclen !=
iv_dma || src_nents || iv_dma + ivsize !=
sg_dma_address(req->src)) {
all_contig = false;
assoc_nents = assoc_nents ? : 1;
src_nents = src_nents ? : 1;
link_tbl_len = assoc_nents + 1 + src_nents;
}
link_tbl_len += dst_nents;
link_tbl_bytes = link_tbl_len * sizeof(struct link_tbl_entry);
/* allocate space for base edesc and hw desc commands, link tables */
edesc = kmalloc(sizeof(struct ipsec_esp_edesc) + desc_bytes +
edesc = kmalloc(sizeof(struct aead_edesc) + desc_bytes +
link_tbl_bytes, GFP_DMA | flags);
if (!edesc) {
dev_err(jrdev, "could not allocate extended descriptor\n");
......@@ -753,142 +1354,450 @@ static struct ipsec_esp_edesc *ipsec_esp_edesc_alloc(struct aead_request *areq,
edesc->assoc_nents = assoc_nents;
edesc->src_nents = src_nents;
edesc->dst_nents = dst_nents;
edesc->link_tbl = (void *)edesc + sizeof(struct ipsec_esp_edesc) +
edesc->iv_dma = iv_dma;
edesc->link_tbl_bytes = link_tbl_bytes;
edesc->link_tbl = (void *)edesc + sizeof(struct aead_edesc) +
desc_bytes;
edesc->link_tbl_dma = dma_map_single(jrdev, edesc->link_tbl,
link_tbl_bytes, DMA_TO_DEVICE);
edesc->link_tbl_bytes = link_tbl_bytes;
*all_contig_ptr = all_contig;
link_tbl_index = 0;
if (!all_contig) {
sg_to_link_tbl(req->assoc,
(assoc_nents ? : 1),
edesc->link_tbl +
link_tbl_index, 0);
link_tbl_index += assoc_nents ? : 1;
sg_to_link_tbl_one(edesc->link_tbl + link_tbl_index,
iv_dma, ivsize, 0);
link_tbl_index += 1;
sg_to_link_tbl_last(req->src,
(src_nents ? : 1),
edesc->link_tbl +
link_tbl_index, 0);
link_tbl_index += src_nents ? : 1;
}
if (dst_nents) {
sg_to_link_tbl_last(req->dst, dst_nents,
edesc->link_tbl + link_tbl_index, 0);
}
return edesc;
}
static int aead_authenc_encrypt(struct aead_request *areq)
static int aead_encrypt(struct aead_request *req)
{
struct ipsec_esp_edesc *edesc;
struct crypto_aead *aead = crypto_aead_reqtfm(areq);
struct aead_edesc *edesc;
struct crypto_aead *aead = crypto_aead_reqtfm(req);
struct caam_ctx *ctx = crypto_aead_ctx(aead);
struct device *jrdev = ctx->jrdev;
int ivsize = crypto_aead_ivsize(aead);
bool all_contig;
u32 *desc;
dma_addr_t iv_dma;
int ret = 0;
req->cryptlen += ctx->authsize;
/* allocate extended descriptor */
edesc = ipsec_esp_edesc_alloc(areq, DESC_AEAD_ENCRYPT_TEXT_LEN *
CAAM_CMD_SZ);
edesc = aead_edesc_alloc(req, DESC_JOB_IO_LEN *
CAAM_CMD_SZ, &all_contig);
if (IS_ERR(edesc))
return PTR_ERR(edesc);
desc = edesc->hw_desc;
/* insert shared descriptor pointer */
init_job_desc_shared(desc, ctx->shared_desc_phys,
desc_len(ctx->sh_desc), HDR_SHARE_DEFER);
iv_dma = dma_map_single(jrdev, areq->iv, ivsize, DMA_TO_DEVICE);
/* check dma error */
/* Create and submit job descriptor */
init_aead_job(ctx->sh_desc_enc, ctx->sh_desc_enc_dma, edesc, req,
all_contig, true);
#ifdef DEBUG
print_hex_dump(KERN_ERR, "aead jobdesc@"xstr(__LINE__)": ",
DUMP_PREFIX_ADDRESS, 16, 4, edesc->hw_desc,
desc_bytes(edesc->hw_desc), 1);
#endif
append_load(desc, iv_dma, ivsize,
LDST_CLASS_1_CCB | LDST_SRCDST_BYTE_CONTEXT);
desc = edesc->hw_desc;
ret = caam_jr_enqueue(jrdev, desc, aead_encrypt_done, req);
if (!ret) {
ret = -EINPROGRESS;
} else {
aead_unmap(jrdev, edesc, req);
kfree(edesc);
}
return ipsec_esp(edesc, areq, OP_ALG_ENCRYPT, ipsec_esp_encrypt_done);
return ret;
}
static int aead_authenc_decrypt(struct aead_request *req)
static int aead_decrypt(struct aead_request *req)
{
struct aead_edesc *edesc;
struct crypto_aead *aead = crypto_aead_reqtfm(req);
int ivsize = crypto_aead_ivsize(aead);
struct caam_ctx *ctx = crypto_aead_ctx(aead);
struct device *jrdev = ctx->jrdev;
struct ipsec_esp_edesc *edesc;
bool all_contig;
u32 *desc;
dma_addr_t iv_dma;
req->cryptlen -= ctx->authsize;
int ret = 0;
/* allocate extended descriptor */
edesc = ipsec_esp_edesc_alloc(req, DESC_AEAD_DECRYPT_TEXT_LEN *
CAAM_CMD_SZ);
edesc = aead_edesc_alloc(req, DESC_JOB_IO_LEN *
CAAM_CMD_SZ, &all_contig);
if (IS_ERR(edesc))
return PTR_ERR(edesc);
#ifdef DEBUG
print_hex_dump(KERN_ERR, "dec src@"xstr(__LINE__)": ",
DUMP_PREFIX_ADDRESS, 16, 4, sg_virt(req->src),
req->cryptlen, 1);
#endif
/* Create and submit job descriptor*/
init_aead_job(ctx->sh_desc_dec,
ctx->sh_desc_dec_dma, edesc, req, all_contig, false);
#ifdef DEBUG
print_hex_dump(KERN_ERR, "aead jobdesc@"xstr(__LINE__)": ",
DUMP_PREFIX_ADDRESS, 16, 4, edesc->hw_desc,
desc_bytes(edesc->hw_desc), 1);
#endif
desc = edesc->hw_desc;
ret = caam_jr_enqueue(jrdev, desc, aead_decrypt_done, req);
if (!ret) {
ret = -EINPROGRESS;
} else {
aead_unmap(jrdev, edesc, req);
kfree(edesc);
}
/* insert shared descriptor pointer */
init_job_desc_shared(desc, ctx->shared_desc_phys,
desc_len(ctx->sh_desc), HDR_SHARE_DEFER);
return ret;
}
iv_dma = dma_map_single(jrdev, req->iv, ivsize, DMA_TO_DEVICE);
/* check dma error */
/*
* allocate and map the aead extended descriptor for aead givencrypt
*/
static struct aead_edesc *aead_giv_edesc_alloc(struct aead_givcrypt_request
*greq, int desc_bytes,
u32 *contig_ptr)
{
struct aead_request *req = &greq->areq;
struct crypto_aead *aead = crypto_aead_reqtfm(req);
struct caam_ctx *ctx = crypto_aead_ctx(aead);
struct device *jrdev = ctx->jrdev;
gfp_t flags = (req->base.flags & (CRYPTO_TFM_REQ_MAY_BACKLOG |
CRYPTO_TFM_REQ_MAY_SLEEP)) ? GFP_KERNEL : GFP_ATOMIC;
int assoc_nents, src_nents, dst_nents = 0;
struct aead_edesc *edesc;
dma_addr_t iv_dma = 0;
int sgc;
u32 contig = GIV_SRC_CONTIG | GIV_DST_CONTIG;
int ivsize = crypto_aead_ivsize(aead);
int link_tbl_index, link_tbl_len = 0, link_tbl_bytes;
assoc_nents = sg_count(req->assoc, req->assoclen);
src_nents = sg_count(req->src, req->cryptlen);
if (unlikely(req->dst != req->src))
dst_nents = sg_count(req->dst, req->cryptlen);
sgc = dma_map_sg(jrdev, req->assoc, assoc_nents ? : 1,
DMA_BIDIRECTIONAL);
if (likely(req->src == req->dst)) {
sgc = dma_map_sg(jrdev, req->src, src_nents ? : 1,
DMA_BIDIRECTIONAL);
} else {
sgc = dma_map_sg(jrdev, req->src, src_nents ? : 1,
DMA_TO_DEVICE);
sgc = dma_map_sg(jrdev, req->dst, dst_nents ? : 1,
DMA_FROM_DEVICE);
}
/* Check if data are contiguous */
iv_dma = dma_map_single(jrdev, greq->giv, ivsize, DMA_TO_DEVICE);
if (assoc_nents || sg_dma_address(req->assoc) + req->assoclen !=
iv_dma || src_nents || iv_dma + ivsize != sg_dma_address(req->src))
contig &= ~GIV_SRC_CONTIG;
if (dst_nents || iv_dma + ivsize != sg_dma_address(req->dst))
contig &= ~GIV_DST_CONTIG;
if (unlikely(req->src != req->dst)) {
dst_nents = dst_nents ? : 1;
link_tbl_len += 1;
}
if (!(contig & GIV_SRC_CONTIG)) {
assoc_nents = assoc_nents ? : 1;
src_nents = src_nents ? : 1;
link_tbl_len += assoc_nents + 1 + src_nents;
if (likely(req->src == req->dst))
contig &= ~GIV_DST_CONTIG;
}
link_tbl_len += dst_nents;
link_tbl_bytes = link_tbl_len * sizeof(struct link_tbl_entry);
/* allocate space for base edesc and hw desc commands, link tables */
edesc = kmalloc(sizeof(struct aead_edesc) + desc_bytes +
link_tbl_bytes, GFP_DMA | flags);
if (!edesc) {
dev_err(jrdev, "could not allocate extended descriptor\n");
return ERR_PTR(-ENOMEM);
}
append_load(desc, iv_dma, ivsize,
LDST_CLASS_1_CCB | LDST_SRCDST_BYTE_CONTEXT);
edesc->assoc_nents = assoc_nents;
edesc->src_nents = src_nents;
edesc->dst_nents = dst_nents;
edesc->iv_dma = iv_dma;
edesc->link_tbl_bytes = link_tbl_bytes;
edesc->link_tbl = (void *)edesc + sizeof(struct aead_edesc) +
desc_bytes;
edesc->link_tbl_dma = dma_map_single(jrdev, edesc->link_tbl,
link_tbl_bytes, DMA_TO_DEVICE);
*contig_ptr = contig;
link_tbl_index = 0;
if (!(contig & GIV_SRC_CONTIG)) {
sg_to_link_tbl(req->assoc, assoc_nents,
edesc->link_tbl +
link_tbl_index, 0);
link_tbl_index += assoc_nents;
sg_to_link_tbl_one(edesc->link_tbl + link_tbl_index,
iv_dma, ivsize, 0);
link_tbl_index += 1;
sg_to_link_tbl_last(req->src, src_nents,
edesc->link_tbl +
link_tbl_index, 0);
link_tbl_index += src_nents;
}
if (unlikely(req->src != req->dst && !(contig & GIV_DST_CONTIG))) {
sg_to_link_tbl_one(edesc->link_tbl + link_tbl_index,
iv_dma, ivsize, 0);
link_tbl_index += 1;
sg_to_link_tbl_last(req->dst, dst_nents,
edesc->link_tbl + link_tbl_index, 0);
}
return ipsec_esp(edesc, req, !OP_ALG_ENCRYPT, ipsec_esp_decrypt_done);
return edesc;
}
static int aead_authenc_givencrypt(struct aead_givcrypt_request *req)
static int aead_givencrypt(struct aead_givcrypt_request *areq)
{
struct aead_request *areq = &req->areq;
struct ipsec_esp_edesc *edesc;
struct crypto_aead *aead = crypto_aead_reqtfm(areq);
struct aead_request *req = &areq->areq;
struct aead_edesc *edesc;
struct crypto_aead *aead = crypto_aead_reqtfm(req);
struct caam_ctx *ctx = crypto_aead_ctx(aead);
struct device *jrdev = ctx->jrdev;
int ivsize = crypto_aead_ivsize(aead);
dma_addr_t iv_dma;
u32 contig;
u32 *desc;
int ret = 0;
iv_dma = dma_map_single(jrdev, req->giv, ivsize, DMA_FROM_DEVICE);
debug("%s: giv %p\n", __func__, req->giv);
req->cryptlen += ctx->authsize;
/* allocate extended descriptor */
edesc = ipsec_esp_edesc_alloc(areq, DESC_AEAD_GIVENCRYPT_TEXT_LEN *
CAAM_CMD_SZ);
edesc = aead_giv_edesc_alloc(areq, DESC_JOB_IO_LEN *
CAAM_CMD_SZ, &contig);
if (IS_ERR(edesc))
return PTR_ERR(edesc);
#ifdef DEBUG
print_hex_dump(KERN_ERR, "giv src@"xstr(__LINE__)": ",
DUMP_PREFIX_ADDRESS, 16, 4, sg_virt(req->src),
req->cryptlen, 1);
#endif
/* Create and submit job descriptor*/
init_aead_giv_job(ctx->sh_desc_givenc,
ctx->sh_desc_givenc_dma, edesc, req, contig);
#ifdef DEBUG
print_hex_dump(KERN_ERR, "aead jobdesc@"xstr(__LINE__)": ",
DUMP_PREFIX_ADDRESS, 16, 4, edesc->hw_desc,
desc_bytes(edesc->hw_desc), 1);
#endif
desc = edesc->hw_desc;
ret = caam_jr_enqueue(jrdev, desc, aead_encrypt_done, req);
if (!ret) {
ret = -EINPROGRESS;
} else {
aead_unmap(jrdev, edesc, req);
kfree(edesc);
}
/* insert shared descriptor pointer */
init_job_desc_shared(desc, ctx->shared_desc_phys,
desc_len(ctx->sh_desc), HDR_SHARE_DEFER);
return ret;
}
/*
* LOAD IMM Info FIFO
* to DECO, Last, Padding, Random, Message, 16 bytes
*/
append_load_imm_u32(desc, NFIFOENTRY_DEST_DECO | NFIFOENTRY_LC1 |
NFIFOENTRY_STYPE_PAD | NFIFOENTRY_DTYPE_MSG |
NFIFOENTRY_PTYPE_RND | ivsize,
LDST_SRCDST_WORD_INFO_FIFO);
/*
* allocate and map the ablkcipher extended descriptor for ablkcipher
*/
static struct ablkcipher_edesc *ablkcipher_edesc_alloc(struct ablkcipher_request
*req, int desc_bytes,
bool *iv_contig_out)
{
struct crypto_ablkcipher *ablkcipher = crypto_ablkcipher_reqtfm(req);
struct caam_ctx *ctx = crypto_ablkcipher_ctx(ablkcipher);
struct device *jrdev = ctx->jrdev;
gfp_t flags = (req->base.flags & (CRYPTO_TFM_REQ_MAY_BACKLOG |
CRYPTO_TFM_REQ_MAY_SLEEP)) ?
GFP_KERNEL : GFP_ATOMIC;
int src_nents, dst_nents = 0, link_tbl_bytes;
struct ablkcipher_edesc *edesc;
dma_addr_t iv_dma = 0;
bool iv_contig = false;
int sgc;
int ivsize = crypto_ablkcipher_ivsize(ablkcipher);
int link_tbl_index;
src_nents = sg_count(req->src, req->nbytes);
if (unlikely(req->dst != req->src))
dst_nents = sg_count(req->dst, req->nbytes);
if (likely(req->src == req->dst)) {
sgc = dma_map_sg(jrdev, req->src, src_nents ? : 1,
DMA_BIDIRECTIONAL);
} else {
sgc = dma_map_sg(jrdev, req->src, src_nents ? : 1,
DMA_TO_DEVICE);
sgc = dma_map_sg(jrdev, req->dst, dst_nents ? : 1,
DMA_FROM_DEVICE);
}
/*
* disable info fifo entries since the above serves as the entry
* this way, the MOVE command won't generate an entry.
* Note that this isn't required in more recent versions of
* SEC as a MOVE that doesn't do info FIFO entries is available.
* Check if iv can be contiguous with source and destination.
* If so, include it. If not, create scatterlist.
*/
append_cmd(desc, CMD_LOAD | DISABLE_AUTO_INFO_FIFO);
iv_dma = dma_map_single(jrdev, req->info, ivsize, DMA_TO_DEVICE);
if (!src_nents && iv_dma + ivsize == sg_dma_address(req->src))
iv_contig = true;
else
src_nents = src_nents ? : 1;
link_tbl_bytes = ((iv_contig ? 0 : 1) + src_nents + dst_nents) *
sizeof(struct link_tbl_entry);
/* allocate space for base edesc and hw desc commands, link tables */
edesc = kmalloc(sizeof(struct ablkcipher_edesc) + desc_bytes +
link_tbl_bytes, GFP_DMA | flags);
if (!edesc) {
dev_err(jrdev, "could not allocate extended descriptor\n");
return ERR_PTR(-ENOMEM);
}
/* MOVE DECO Alignment -> C1 Context 16 bytes */
append_move(desc, MOVE_SRC_INFIFO | MOVE_DEST_CLASS1CTX | ivsize);
edesc->src_nents = src_nents;
edesc->dst_nents = dst_nents;
edesc->link_tbl_bytes = link_tbl_bytes;
edesc->link_tbl = (void *)edesc + sizeof(struct ablkcipher_edesc) +
desc_bytes;
/* re-enable info fifo entries */
append_cmd(desc, CMD_LOAD | ENABLE_AUTO_INFO_FIFO);
link_tbl_index = 0;
if (!iv_contig) {
sg_to_link_tbl_one(edesc->link_tbl, iv_dma, ivsize, 0);
sg_to_link_tbl_last(req->src, src_nents,
edesc->link_tbl + 1, 0);
link_tbl_index += 1 + src_nents;
}
if (unlikely(dst_nents)) {
sg_to_link_tbl_last(req->dst, dst_nents,
edesc->link_tbl + link_tbl_index, 0);
}
edesc->link_tbl_dma = dma_map_single(jrdev, edesc->link_tbl,
link_tbl_bytes, DMA_TO_DEVICE);
edesc->iv_dma = iv_dma;
#ifdef DEBUG
print_hex_dump(KERN_ERR, "ablkcipher link_tbl@"xstr(__LINE__)": ",
DUMP_PREFIX_ADDRESS, 16, 4, edesc->link_tbl,
link_tbl_bytes, 1);
#endif
*iv_contig_out = iv_contig;
return edesc;
}
static int ablkcipher_encrypt(struct ablkcipher_request *req)
{
struct ablkcipher_edesc *edesc;
struct crypto_ablkcipher *ablkcipher = crypto_ablkcipher_reqtfm(req);
struct caam_ctx *ctx = crypto_ablkcipher_ctx(ablkcipher);
struct device *jrdev = ctx->jrdev;
bool iv_contig;
u32 *desc;
int ret = 0;
/* allocate extended descriptor */
edesc = ablkcipher_edesc_alloc(req, DESC_JOB_IO_LEN *
CAAM_CMD_SZ, &iv_contig);
if (IS_ERR(edesc))
return PTR_ERR(edesc);
/* Create and submit job descriptor*/
init_ablkcipher_job(ctx->sh_desc_enc,
ctx->sh_desc_enc_dma, edesc, req, iv_contig);
#ifdef DEBUG
print_hex_dump(KERN_ERR, "ablkcipher jobdesc@"xstr(__LINE__)": ",
DUMP_PREFIX_ADDRESS, 16, 4, edesc->hw_desc,
desc_bytes(edesc->hw_desc), 1);
#endif
desc = edesc->hw_desc;
ret = caam_jr_enqueue(jrdev, desc, ablkcipher_encrypt_done, req);
if (!ret) {
ret = -EINPROGRESS;
} else {
ablkcipher_unmap(jrdev, edesc, req);
kfree(edesc);
}
return ret;
}
static int ablkcipher_decrypt(struct ablkcipher_request *req)
{
struct ablkcipher_edesc *edesc;
struct crypto_ablkcipher *ablkcipher = crypto_ablkcipher_reqtfm(req);
struct caam_ctx *ctx = crypto_ablkcipher_ctx(ablkcipher);
struct device *jrdev = ctx->jrdev;
bool iv_contig;
u32 *desc;
int ret = 0;
/* allocate extended descriptor */
edesc = ablkcipher_edesc_alloc(req, DESC_JOB_IO_LEN *
CAAM_CMD_SZ, &iv_contig);
if (IS_ERR(edesc))
return PTR_ERR(edesc);
/* MOVE C1 Context -> OFIFO 16 bytes */
append_move(desc, MOVE_SRC_CLASS1CTX | MOVE_DEST_OUTFIFO | ivsize);
/* Create and submit job descriptor*/
init_ablkcipher_job(ctx->sh_desc_dec,
ctx->sh_desc_dec_dma, edesc, req, iv_contig);
desc = edesc->hw_desc;
#ifdef DEBUG
print_hex_dump(KERN_ERR, "ablkcipher jobdesc@"xstr(__LINE__)": ",
DUMP_PREFIX_ADDRESS, 16, 4, edesc->hw_desc,
desc_bytes(edesc->hw_desc), 1);
#endif
append_fifo_store(desc, iv_dma, ivsize, FIFOST_TYPE_MESSAGE_DATA);
ret = caam_jr_enqueue(jrdev, desc, ablkcipher_decrypt_done, req);
if (!ret) {
ret = -EINPROGRESS;
} else {
ablkcipher_unmap(jrdev, edesc, req);
kfree(edesc);
}
return ipsec_esp(edesc, areq, OP_ALG_ENCRYPT, ipsec_esp_encrypt_done);
return ret;
}
#define template_aead template_u.aead
#define template_ablkcipher template_u.ablkcipher
struct caam_alg_template {
char name[CRYPTO_MAX_ALG_NAME];
char driver_name[CRYPTO_MAX_ALG_NAME];
unsigned int blocksize;
struct aead_alg aead;
u32 type;
union {
struct ablkcipher_alg ablkcipher;
struct aead_alg aead;
struct blkcipher_alg blkcipher;
struct cipher_alg cipher;
struct compress_alg compress;
struct rng_alg rng;
} template_u;
u32 class1_alg_type;
u32 class2_alg_type;
u32 alg_op;
......@@ -900,12 +1809,13 @@ static struct caam_alg_template driver_algs[] = {
.name = "authenc(hmac(sha1),cbc(aes))",
.driver_name = "authenc-hmac-sha1-cbc-aes-caam",
.blocksize = AES_BLOCK_SIZE,
.aead = {
.setkey = aead_authenc_setkey,
.setauthsize = aead_authenc_setauthsize,
.encrypt = aead_authenc_encrypt,
.decrypt = aead_authenc_decrypt,
.givencrypt = aead_authenc_givencrypt,
.type = CRYPTO_ALG_TYPE_AEAD,
.template_aead = {
.setkey = aead_setkey,
.setauthsize = aead_setauthsize,
.encrypt = aead_encrypt,
.decrypt = aead_decrypt,
.givencrypt = aead_givencrypt,
.geniv = "<built-in>",
.ivsize = AES_BLOCK_SIZE,
.maxauthsize = SHA1_DIGEST_SIZE,
......@@ -918,12 +1828,13 @@ static struct caam_alg_template driver_algs[] = {
.name = "authenc(hmac(sha256),cbc(aes))",
.driver_name = "authenc-hmac-sha256-cbc-aes-caam",
.blocksize = AES_BLOCK_SIZE,
.aead = {
.setkey = aead_authenc_setkey,
.setauthsize = aead_authenc_setauthsize,
.encrypt = aead_authenc_encrypt,
.decrypt = aead_authenc_decrypt,
.givencrypt = aead_authenc_givencrypt,
.type = CRYPTO_ALG_TYPE_AEAD,
.template_aead = {
.setkey = aead_setkey,
.setauthsize = aead_setauthsize,
.encrypt = aead_encrypt,
.decrypt = aead_decrypt,
.givencrypt = aead_givencrypt,
.geniv = "<built-in>",
.ivsize = AES_BLOCK_SIZE,
.maxauthsize = SHA256_DIGEST_SIZE,
......@@ -937,12 +1848,13 @@ static struct caam_alg_template driver_algs[] = {
.name = "authenc(hmac(sha512),cbc(aes))",
.driver_name = "authenc-hmac-sha512-cbc-aes-caam",
.blocksize = AES_BLOCK_SIZE,
.aead = {
.setkey = aead_authenc_setkey,
.setauthsize = aead_authenc_setauthsize,
.encrypt = aead_authenc_encrypt,
.decrypt = aead_authenc_decrypt,
.givencrypt = aead_authenc_givencrypt,
.type = CRYPTO_ALG_TYPE_AEAD,
.template_aead = {
.setkey = aead_setkey,
.setauthsize = aead_setauthsize,
.encrypt = aead_encrypt,
.decrypt = aead_decrypt,
.givencrypt = aead_givencrypt,
.geniv = "<built-in>",
.ivsize = AES_BLOCK_SIZE,
.maxauthsize = SHA512_DIGEST_SIZE,
......@@ -956,12 +1868,13 @@ static struct caam_alg_template driver_algs[] = {
.name = "authenc(hmac(sha1),cbc(des3_ede))",
.driver_name = "authenc-hmac-sha1-cbc-des3_ede-caam",
.blocksize = DES3_EDE_BLOCK_SIZE,
.aead = {
.setkey = aead_authenc_setkey,
.setauthsize = aead_authenc_setauthsize,
.encrypt = aead_authenc_encrypt,
.decrypt = aead_authenc_decrypt,
.givencrypt = aead_authenc_givencrypt,
.type = CRYPTO_ALG_TYPE_AEAD,
.template_aead = {
.setkey = aead_setkey,
.setauthsize = aead_setauthsize,
.encrypt = aead_encrypt,
.decrypt = aead_decrypt,
.givencrypt = aead_givencrypt,
.geniv = "<built-in>",
.ivsize = DES3_EDE_BLOCK_SIZE,
.maxauthsize = SHA1_DIGEST_SIZE,
......@@ -974,12 +1887,13 @@ static struct caam_alg_template driver_algs[] = {
.name = "authenc(hmac(sha256),cbc(des3_ede))",
.driver_name = "authenc-hmac-sha256-cbc-des3_ede-caam",
.blocksize = DES3_EDE_BLOCK_SIZE,
.aead = {
.setkey = aead_authenc_setkey,
.setauthsize = aead_authenc_setauthsize,
.encrypt = aead_authenc_encrypt,
.decrypt = aead_authenc_decrypt,
.givencrypt = aead_authenc_givencrypt,
.type = CRYPTO_ALG_TYPE_AEAD,
.template_aead = {
.setkey = aead_setkey,
.setauthsize = aead_setauthsize,
.encrypt = aead_encrypt,
.decrypt = aead_decrypt,
.givencrypt = aead_givencrypt,
.geniv = "<built-in>",
.ivsize = DES3_EDE_BLOCK_SIZE,
.maxauthsize = SHA256_DIGEST_SIZE,
......@@ -993,12 +1907,13 @@ static struct caam_alg_template driver_algs[] = {
.name = "authenc(hmac(sha512),cbc(des3_ede))",
.driver_name = "authenc-hmac-sha512-cbc-des3_ede-caam",
.blocksize = DES3_EDE_BLOCK_SIZE,
.aead = {
.setkey = aead_authenc_setkey,
.setauthsize = aead_authenc_setauthsize,
.encrypt = aead_authenc_encrypt,
.decrypt = aead_authenc_decrypt,
.givencrypt = aead_authenc_givencrypt,
.type = CRYPTO_ALG_TYPE_AEAD,
.template_aead = {
.setkey = aead_setkey,
.setauthsize = aead_setauthsize,
.encrypt = aead_encrypt,
.decrypt = aead_decrypt,
.givencrypt = aead_givencrypt,
.geniv = "<built-in>",
.ivsize = DES3_EDE_BLOCK_SIZE,
.maxauthsize = SHA512_DIGEST_SIZE,
......@@ -1012,12 +1927,13 @@ static struct caam_alg_template driver_algs[] = {
.name = "authenc(hmac(sha1),cbc(des))",
.driver_name = "authenc-hmac-sha1-cbc-des-caam",
.blocksize = DES_BLOCK_SIZE,
.aead = {
.setkey = aead_authenc_setkey,
.setauthsize = aead_authenc_setauthsize,
.encrypt = aead_authenc_encrypt,
.decrypt = aead_authenc_decrypt,
.givencrypt = aead_authenc_givencrypt,
.type = CRYPTO_ALG_TYPE_AEAD,
.template_aead = {
.setkey = aead_setkey,
.setauthsize = aead_setauthsize,
.encrypt = aead_encrypt,
.decrypt = aead_decrypt,
.givencrypt = aead_givencrypt,
.geniv = "<built-in>",
.ivsize = DES_BLOCK_SIZE,
.maxauthsize = SHA1_DIGEST_SIZE,
......@@ -1030,12 +1946,13 @@ static struct caam_alg_template driver_algs[] = {
.name = "authenc(hmac(sha256),cbc(des))",
.driver_name = "authenc-hmac-sha256-cbc-des-caam",
.blocksize = DES_BLOCK_SIZE,
.aead = {
.setkey = aead_authenc_setkey,
.setauthsize = aead_authenc_setauthsize,
.encrypt = aead_authenc_encrypt,
.decrypt = aead_authenc_decrypt,
.givencrypt = aead_authenc_givencrypt,
.type = CRYPTO_ALG_TYPE_AEAD,
.template_aead = {
.setkey = aead_setkey,
.setauthsize = aead_setauthsize,
.encrypt = aead_encrypt,
.decrypt = aead_decrypt,
.givencrypt = aead_givencrypt,
.geniv = "<built-in>",
.ivsize = DES_BLOCK_SIZE,
.maxauthsize = SHA256_DIGEST_SIZE,
......@@ -1049,12 +1966,13 @@ static struct caam_alg_template driver_algs[] = {
.name = "authenc(hmac(sha512),cbc(des))",
.driver_name = "authenc-hmac-sha512-cbc-des-caam",
.blocksize = DES_BLOCK_SIZE,
.aead = {
.setkey = aead_authenc_setkey,
.setauthsize = aead_authenc_setauthsize,
.encrypt = aead_authenc_encrypt,
.decrypt = aead_authenc_decrypt,
.givencrypt = aead_authenc_givencrypt,
.type = CRYPTO_ALG_TYPE_AEAD,
.template_aead = {
.setkey = aead_setkey,
.setauthsize = aead_setauthsize,
.encrypt = aead_encrypt,
.decrypt = aead_decrypt,
.givencrypt = aead_givencrypt,
.geniv = "<built-in>",
.ivsize = DES_BLOCK_SIZE,
.maxauthsize = SHA512_DIGEST_SIZE,
......@@ -1064,6 +1982,55 @@ static struct caam_alg_template driver_algs[] = {
OP_ALG_AAI_HMAC_PRECOMP,
.alg_op = OP_ALG_ALGSEL_SHA512 | OP_ALG_AAI_HMAC,
},
/* ablkcipher descriptor */
{
.name = "cbc(aes)",
.driver_name = "cbc-aes-caam",
.blocksize = AES_BLOCK_SIZE,
.type = CRYPTO_ALG_TYPE_ABLKCIPHER,
.template_ablkcipher = {
.setkey = ablkcipher_setkey,
.encrypt = ablkcipher_encrypt,
.decrypt = ablkcipher_decrypt,
.geniv = "eseqiv",
.min_keysize = AES_MIN_KEY_SIZE,
.max_keysize = AES_MAX_KEY_SIZE,
.ivsize = AES_BLOCK_SIZE,
},
.class1_alg_type = OP_ALG_ALGSEL_AES | OP_ALG_AAI_CBC,
},
{
.name = "cbc(des3_ede)",
.driver_name = "cbc-3des-caam",
.blocksize = DES3_EDE_BLOCK_SIZE,
.type = CRYPTO_ALG_TYPE_ABLKCIPHER,
.template_ablkcipher = {
.setkey = ablkcipher_setkey,
.encrypt = ablkcipher_encrypt,
.decrypt = ablkcipher_decrypt,
.geniv = "eseqiv",
.min_keysize = DES3_EDE_KEY_SIZE,
.max_keysize = DES3_EDE_KEY_SIZE,
.ivsize = DES3_EDE_BLOCK_SIZE,
},
.class1_alg_type = OP_ALG_ALGSEL_3DES | OP_ALG_AAI_CBC,
},
{
.name = "cbc(des)",
.driver_name = "cbc-des-caam",
.blocksize = DES_BLOCK_SIZE,
.type = CRYPTO_ALG_TYPE_ABLKCIPHER,
.template_ablkcipher = {
.setkey = ablkcipher_setkey,
.encrypt = ablkcipher_encrypt,
.decrypt = ablkcipher_decrypt,
.geniv = "eseqiv",
.min_keysize = DES_KEY_SIZE,
.max_keysize = DES_KEY_SIZE,
.ivsize = DES_BLOCK_SIZE,
},
.class1_alg_type = OP_ALG_ALGSEL_DES | OP_ALG_AAI_CBC,
}
};
struct caam_crypto_alg {
......@@ -1102,16 +2069,19 @@ static void caam_cra_exit(struct crypto_tfm *tfm)
{
struct caam_ctx *ctx = crypto_tfm_ctx(tfm);
if (!dma_mapping_error(ctx->jrdev, ctx->shared_desc_phys))
dma_unmap_single(ctx->jrdev, ctx->shared_desc_phys,
desc_bytes(ctx->sh_desc), DMA_TO_DEVICE);
kfree(ctx->sh_desc);
if (!dma_mapping_error(ctx->jrdev, ctx->key_phys))
dma_unmap_single(ctx->jrdev, ctx->key_phys,
ctx->split_key_pad_len + ctx->enckeylen,
if (ctx->sh_desc_enc_dma &&
!dma_mapping_error(ctx->jrdev, ctx->sh_desc_enc_dma))
dma_unmap_single(ctx->jrdev, ctx->sh_desc_enc_dma,
desc_bytes(ctx->sh_desc_enc), DMA_TO_DEVICE);
if (ctx->sh_desc_dec_dma &&
!dma_mapping_error(ctx->jrdev, ctx->sh_desc_dec_dma))
dma_unmap_single(ctx->jrdev, ctx->sh_desc_dec_dma,
desc_bytes(ctx->sh_desc_dec), DMA_TO_DEVICE);
if (ctx->sh_desc_givenc_dma &&
!dma_mapping_error(ctx->jrdev, ctx->sh_desc_givenc_dma))
dma_unmap_single(ctx->jrdev, ctx->sh_desc_givenc_dma,
desc_bytes(ctx->sh_desc_givenc),
DMA_TO_DEVICE);
kfree(ctx->key);
}
static void __exit caam_algapi_exit(void)
......@@ -1175,12 +2145,20 @@ static struct caam_crypto_alg *caam_alg_alloc(struct device *ctrldev,
alg->cra_init = caam_cra_init;
alg->cra_exit = caam_cra_exit;
alg->cra_priority = CAAM_CRA_PRIORITY;
alg->cra_flags = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_ASYNC;
alg->cra_blocksize = template->blocksize;
alg->cra_alignmask = 0;
alg->cra_type = &crypto_aead_type;
alg->cra_ctxsize = sizeof(struct caam_ctx);
alg->cra_u.aead = template->aead;
alg->cra_flags = CRYPTO_ALG_ASYNC | template->type;
switch (template->type) {
case CRYPTO_ALG_TYPE_ABLKCIPHER:
alg->cra_type = &crypto_ablkcipher_type;
alg->cra_ablkcipher = template->template_ablkcipher;
break;
case CRYPTO_ALG_TYPE_AEAD:
alg->cra_type = &crypto_aead_type;
alg->cra_aead = template->template_aead;
break;
}
t_alg->class1_alg_type = template->class1_alg_type;
t_alg->class2_alg_type = template->class2_alg_type;
......
drivers/crypto/caam/compat.h
浏览文件 @ a23a334b
......@@ -31,5 +31,6 @@
#include <crypto/aead.h>
#include <crypto/authenc.h>
#include <crypto/scatterwalk.h>
#include <crypto/internal/skcipher.h>
#endif /* !defined(CAAM_COMPAT_H) */
drivers/crypto/caam/ctrl.c
浏览文件 @ a23a334b
......@@ -52,9 +52,11 @@ static int caam_probe(struct platform_device *pdev)
struct caam_ctrl __iomem *ctrl;
struct caam_full __iomem *topregs;
struct caam_drv_private *ctrlpriv;
struct caam_perfmon *perfmon;
struct caam_deco **deco;
u32 deconum;
#ifdef CONFIG_DEBUG_FS
struct caam_perfmon *perfmon;
#endif
ctrlpriv = kzalloc(sizeof(struct caam_drv_private), GFP_KERNEL);
if (!ctrlpriv)
......
drivers/crypto/caam/desc_constr.h
浏览文件 @ a23a334b
......@@ -9,7 +9,7 @@
#define IMMEDIATE (1 << 23)
#define CAAM_CMD_SZ sizeof(u32)
#define CAAM_PTR_SZ sizeof(dma_addr_t)
#define CAAM_DESC_BYTES_MAX (CAAM_CMD_SZ * 64)
#define CAAM_DESC_BYTES_MAX (CAAM_CMD_SZ * MAX_CAAM_DESCSIZE)
#ifdef DEBUG
#define PRINT_POS do { printk(KERN_DEBUG "%02d: %s\n", desc_len(desc),\
......@@ -18,6 +18,9 @@
#define PRINT_POS
#endif
#define SET_OK_PROP_ERRORS (IMMEDIATE | LDST_CLASS_DECO | \
LDST_SRCDST_WORD_DECOCTRL | \
(LDOFF_CHG_SHARE_OK_PROP << LDST_OFFSET_SHIFT))
#define DISABLE_AUTO_INFO_FIFO (IMMEDIATE | LDST_CLASS_DECO | \
LDST_SRCDST_WORD_DECOCTRL | \
(LDOFF_DISABLE_AUTO_NFIFO << LDST_OFFSET_SHIFT))
......@@ -203,3 +206,56 @@ static inline void append_##cmd##_imm_##type(u32 *desc, type immediate, \
append_cmd(desc, immediate); \
}
APPEND_CMD_RAW_IMM(load, LOAD, u32);
/*
* Append math command. Only the last part of destination and source need to
* be specified
*/
#define APPEND_MATH(op, desc, dest, src_0, src_1, len) \
append_cmd(desc, CMD_MATH | MATH_FUN_##op | MATH_DEST_##dest | \
MATH_SRC0_##src_0 | MATH_SRC1_##src_1 | (u32) (len & MATH_LEN_MASK));
#define append_math_add(desc, dest, src0, src1, len) \
APPEND_MATH(ADD, desc, dest, src0, src1, len)
#define append_math_sub(desc, dest, src0, src1, len) \
APPEND_MATH(SUB, desc, dest, src0, src1, len)
#define append_math_add_c(desc, dest, src0, src1, len) \
APPEND_MATH(ADDC, desc, dest, src0, src1, len)
#define append_math_sub_b(desc, dest, src0, src1, len) \
APPEND_MATH(SUBB, desc, dest, src0, src1, len)
#define append_math_and(desc, dest, src0, src1, len) \
APPEND_MATH(AND, desc, dest, src0, src1, len)
#define append_math_or(desc, dest, src0, src1, len) \
APPEND_MATH(OR, desc, dest, src0, src1, len)
#define append_math_xor(desc, dest, src0, src1, len) \
APPEND_MATH(XOR, desc, dest, src0, src1, len)
#define append_math_lshift(desc, dest, src0, src1, len) \
APPEND_MATH(LSHIFT, desc, dest, src0, src1, len)
#define append_math_rshift(desc, dest, src0, src1, len) \
APPEND_MATH(RSHIFT, desc, dest, src0, src1, len)
/* Exactly one source is IMM. Data is passed in as u32 value */
#define APPEND_MATH_IMM_u32(op, desc, dest, src_0, src_1, data) \
do { \
APPEND_MATH(op, desc, dest, src_0, src_1, CAAM_CMD_SZ); \
append_cmd(desc, data); \
} while (0);
#define append_math_add_imm_u32(desc, dest, src0, src1, data) \
APPEND_MATH_IMM_u32(ADD, desc, dest, src0, src1, data)
#define append_math_sub_imm_u32(desc, dest, src0, src1, data) \
APPEND_MATH_IMM_u32(SUB, desc, dest, src0, src1, data)
#define append_math_add_c_imm_u32(desc, dest, src0, src1, data) \
APPEND_MATH_IMM_u32(ADDC, desc, dest, src0, src1, data)
#define append_math_sub_b_imm_u32(desc, dest, src0, src1, data) \
APPEND_MATH_IMM_u32(SUBB, desc, dest, src0, src1, data)
#define append_math_and_imm_u32(desc, dest, src0, src1, data) \
APPEND_MATH_IMM_u32(AND, desc, dest, src0, src1, data)
#define append_math_or_imm_u32(desc, dest, src0, src1, data) \
APPEND_MATH_IMM_u32(OR, desc, dest, src0, src1, data)
#define append_math_xor_imm_u32(desc, dest, src0, src1, data) \
APPEND_MATH_IMM_u32(XOR, desc, dest, src0, src1, data)
#define append_math_lshift_imm_u32(desc, dest, src0, src1, data) \
APPEND_MATH_IMM_u32(LSHIFT, desc, dest, src0, src1, data)
#define append_math_rshift_imm_u32(desc, dest, src0, src1, data) \
APPEND_MATH_IMM_u32(RSHIFT, desc, dest, src0, src1, data)
drivers/crypto/omap-sham.c
浏览文件 @ a23a334b
......@@ -72,17 +72,20 @@
#define DEFAULT_TIMEOUT_INTERVAL HZ
#define FLAGS_FINUP 0x0002
#define FLAGS_FINAL 0x0004
#define FLAGS_SG 0x0008
#define FLAGS_SHA1 0x0010
#define FLAGS_DMA_ACTIVE 0x0020
#define FLAGS_OUTPUT_READY 0x0040
#define FLAGS_INIT 0x0100
#define FLAGS_CPU 0x0200
#define FLAGS_HMAC 0x0400
#define FLAGS_ERROR 0x0800
#define FLAGS_BUSY 0x1000
/* mostly device flags */
#define FLAGS_BUSY 0
#define FLAGS_FINAL 1
#define FLAGS_DMA_ACTIVE 2
#define FLAGS_OUTPUT_READY 3
#define FLAGS_INIT 4
#define FLAGS_CPU 5
#define FLAGS_DMA_READY 6
/* context flags */
#define FLAGS_FINUP 16
#define FLAGS_SG 17
#define FLAGS_SHA1 18
#define FLAGS_HMAC 19
#define FLAGS_ERROR 20
#define OP_UPDATE 1
#define OP_FINAL 2
......@@ -144,7 +147,6 @@ struct omap_sham_dev {
int dma;
int dma_lch;
struct tasklet_struct done_task;
struct tasklet_struct queue_task;
unsigned long flags;
struct crypto_queue queue;
......@@ -223,7 +225,7 @@ static void omap_sham_copy_ready_hash(struct ahash_request *req)
if (!hash)
return;
if (likely(ctx->flags & FLAGS_SHA1)) {
if (likely(ctx->flags & BIT(FLAGS_SHA1))) {
/* SHA1 results are in big endian */
for (i = 0; i < SHA1_DIGEST_SIZE / sizeof(u32); i++)
hash[i] = be32_to_cpu(in[i]);
......@@ -238,7 +240,7 @@ static int omap_sham_hw_init(struct omap_sham_dev *dd)
{
clk_enable(dd->iclk);
if (!(dd->flags & FLAGS_INIT)) {
if (!test_bit(FLAGS_INIT, &dd->flags)) {
omap_sham_write_mask(dd, SHA_REG_MASK,
SHA_REG_MASK_SOFTRESET, SHA_REG_MASK_SOFTRESET);
......@@ -246,7 +248,7 @@ static int omap_sham_hw_init(struct omap_sham_dev *dd)
SHA_REG_SYSSTATUS_RESETDONE))
return -ETIMEDOUT;
dd->flags |= FLAGS_INIT;
set_bit(FLAGS_INIT, &dd->flags);
dd->err = 0;
}
......@@ -269,7 +271,7 @@ static void omap_sham_write_ctrl(struct omap_sham_dev *dd, size_t length,
* Setting ALGO_CONST only for the first iteration
* and CLOSE_HASH only for the last one.
*/
if (ctx->flags & FLAGS_SHA1)
if (ctx->flags & BIT(FLAGS_SHA1))
val |= SHA_REG_CTRL_ALGO;
if (!ctx->digcnt)
val |= SHA_REG_CTRL_ALGO_CONST;
......@@ -301,7 +303,9 @@ static int omap_sham_xmit_cpu(struct omap_sham_dev *dd, const u8 *buf,
return -ETIMEDOUT;
if (final)
ctx->flags |= FLAGS_FINAL; /* catch last interrupt */
set_bit(FLAGS_FINAL, &dd->flags); /* catch last interrupt */
set_bit(FLAGS_CPU, &dd->flags);
len32 = DIV_ROUND_UP(length, sizeof(u32));
......@@ -334,9 +338,9 @@ static int omap_sham_xmit_dma(struct omap_sham_dev *dd, dma_addr_t dma_addr,
ctx->digcnt += length;
if (final)
ctx->flags |= FLAGS_FINAL; /* catch last interrupt */
set_bit(FLAGS_FINAL, &dd->flags); /* catch last interrupt */
dd->flags |= FLAGS_DMA_ACTIVE;
set_bit(FLAGS_DMA_ACTIVE, &dd->flags);
omap_start_dma(dd->dma_lch);
......@@ -392,7 +396,7 @@ static int omap_sham_xmit_dma_map(struct omap_sham_dev *dd,
return -EINVAL;
}
ctx->flags &= ~FLAGS_SG;
ctx->flags &= ~BIT(FLAGS_SG);
/* next call does not fail... so no unmap in the case of error */
return omap_sham_xmit_dma(dd, ctx->dma_addr, length, final);
......@@ -406,7 +410,7 @@ static int omap_sham_update_dma_slow(struct omap_sham_dev *dd)
omap_sham_append_sg(ctx);
final = (ctx->flags & FLAGS_FINUP) && !ctx->total;
final = (ctx->flags & BIT(FLAGS_FINUP)) && !ctx->total;
dev_dbg(dd->dev, "slow: bufcnt: %u, digcnt: %d, final: %d\n",
ctx->bufcnt, ctx->digcnt, final);
......@@ -452,7 +456,7 @@ static int omap_sham_update_dma_start(struct omap_sham_dev *dd)
length = min(ctx->total, sg->length);
if (sg_is_last(sg)) {
if (!(ctx->flags & FLAGS_FINUP)) {
if (!(ctx->flags & BIT(FLAGS_FINUP))) {
/* not last sg must be SHA1_MD5_BLOCK_SIZE aligned */
tail = length & (SHA1_MD5_BLOCK_SIZE - 1);
/* without finup() we need one block to close hash */
......@@ -467,12 +471,12 @@ static int omap_sham_update_dma_start(struct omap_sham_dev *dd)
return -EINVAL;
}
ctx->flags |= FLAGS_SG;
ctx->flags |= BIT(FLAGS_SG);
ctx->total -= length;
ctx->offset = length; /* offset where to start slow */
final = (ctx->flags & FLAGS_FINUP) && !ctx->total;
final = (ctx->flags & BIT(FLAGS_FINUP)) && !ctx->total;
/* next call does not fail... so no unmap in the case of error */
return omap_sham_xmit_dma(dd, sg_dma_address(ctx->sg), length, final);
......@@ -495,7 +499,7 @@ static int omap_sham_update_dma_stop(struct omap_sham_dev *dd)
struct omap_sham_reqctx *ctx = ahash_request_ctx(dd->req);
omap_stop_dma(dd->dma_lch);
if (ctx->flags & FLAGS_SG) {
if (ctx->flags & BIT(FLAGS_SG)) {
dma_unmap_sg(dd->dev, ctx->sg, 1, DMA_TO_DEVICE);
if (ctx->sg->length == ctx->offset) {
ctx->sg = sg_next(ctx->sg);
......@@ -537,18 +541,18 @@ static int omap_sham_init(struct ahash_request *req)
crypto_ahash_digestsize(tfm));
if (crypto_ahash_digestsize(tfm) == SHA1_DIGEST_SIZE)
ctx->flags |= FLAGS_SHA1;
ctx->flags |= BIT(FLAGS_SHA1);
ctx->bufcnt = 0;
ctx->digcnt = 0;
ctx->buflen = BUFLEN;
if (tctx->flags & FLAGS_HMAC) {
if (tctx->flags & BIT(FLAGS_HMAC)) {
struct omap_sham_hmac_ctx *bctx = tctx->base;
memcpy(ctx->buffer, bctx->ipad, SHA1_MD5_BLOCK_SIZE);
ctx->bufcnt = SHA1_MD5_BLOCK_SIZE;
ctx->flags |= FLAGS_HMAC;
ctx->flags |= BIT(FLAGS_HMAC);
}
return 0;
......@@ -562,9 +566,9 @@ static int omap_sham_update_req(struct omap_sham_dev *dd)
int err;
dev_dbg(dd->dev, "update_req: total: %u, digcnt: %d, finup: %d\n",
ctx->total, ctx->digcnt, (ctx->flags & FLAGS_FINUP) != 0);
ctx->total, ctx->digcnt, (ctx->flags & BIT(FLAGS_FINUP)) != 0);
if (ctx->flags & FLAGS_CPU)
if (ctx->flags & BIT(FLAGS_CPU))
err = omap_sham_update_cpu(dd);
else
err = omap_sham_update_dma_start(dd);
......@@ -624,7 +628,7 @@ static int omap_sham_finish(struct ahash_request *req)
if (ctx->digcnt) {
omap_sham_copy_ready_hash(req);
if (ctx->flags & FLAGS_HMAC)
if (ctx->flags & BIT(FLAGS_HMAC))
err = omap_sham_finish_hmac(req);
}
......@@ -639,18 +643,23 @@ static void omap_sham_finish_req(struct ahash_request *req, int err)
struct omap_sham_dev *dd = ctx->dd;
if (!err) {
omap_sham_copy_hash(ctx->dd->req, 1);
if (ctx->flags & FLAGS_FINAL)
omap_sham_copy_hash(req, 1);
if (test_bit(FLAGS_FINAL, &dd->flags))
err = omap_sham_finish(req);
} else {
ctx->flags |= FLAGS_ERROR;
ctx->flags |= BIT(FLAGS_ERROR);
}
/* atomic operation is not needed here */
dd->flags &= ~(BIT(FLAGS_BUSY) | BIT(FLAGS_FINAL) | BIT(FLAGS_CPU) |
BIT(FLAGS_DMA_READY) | BIT(FLAGS_OUTPUT_READY));
clk_disable(dd->iclk);
dd->flags &= ~FLAGS_BUSY;
if (req->base.complete)
req->base.complete(&req->base, err);
/* handle new request */
tasklet_schedule(&dd->done_task);
}
static int omap_sham_handle_queue(struct omap_sham_dev *dd,
......@@ -658,21 +667,20 @@ static int omap_sham_handle_queue(struct omap_sham_dev *dd,
{
struct crypto_async_request *async_req, *backlog;
struct omap_sham_reqctx *ctx;
struct ahash_request *prev_req;
unsigned long flags;
int err = 0, ret = 0;
spin_lock_irqsave(&dd->lock, flags);
if (req)
ret = ahash_enqueue_request(&dd->queue, req);
if (dd->flags & FLAGS_BUSY) {
if (test_bit(FLAGS_BUSY, &dd->flags)) {
spin_unlock_irqrestore(&dd->lock, flags);
return ret;
}
backlog = crypto_get_backlog(&dd->queue);
async_req = crypto_dequeue_request(&dd->queue);
if (async_req)
dd->flags |= FLAGS_BUSY;
set_bit(FLAGS_BUSY, &dd->flags);
spin_unlock_irqrestore(&dd->lock, flags);
if (!async_req)
......@@ -682,16 +690,12 @@ static int omap_sham_handle_queue(struct omap_sham_dev *dd,
backlog->complete(backlog, -EINPROGRESS);
req = ahash_request_cast(async_req);
prev_req = dd->req;
dd->req = req;
ctx = ahash_request_ctx(req);
dev_dbg(dd->dev, "handling new req, op: %lu, nbytes: %d\n",
ctx->op, req->nbytes);
err = omap_sham_hw_init(dd);
if (err)
goto err1;
......@@ -712,18 +716,16 @@ static int omap_sham_handle_queue(struct omap_sham_dev *dd,
if (ctx->op == OP_UPDATE) {
err = omap_sham_update_req(dd);
if (err != -EINPROGRESS && (ctx->flags & FLAGS_FINUP))
if (err != -EINPROGRESS && (ctx->flags & BIT(FLAGS_FINUP)))
/* no final() after finup() */
err = omap_sham_final_req(dd);
} else if (ctx->op == OP_FINAL) {
err = omap_sham_final_req(dd);
}
err1:
if (err != -EINPROGRESS) {
if (err != -EINPROGRESS)
/* done_task will not finish it, so do it here */
omap_sham_finish_req(req, err);
tasklet_schedule(&dd->queue_task);
}
dev_dbg(dd->dev, "exit, err: %d\n", err);
......@@ -752,7 +754,7 @@ static int omap_sham_update(struct ahash_request *req)
ctx->sg = req->src;
ctx->offset = 0;
if (ctx->flags & FLAGS_FINUP) {
if (ctx->flags & BIT(FLAGS_FINUP)) {
if ((ctx->digcnt + ctx->bufcnt + ctx->total) < 9) {
/*
* OMAP HW accel works only with buffers >= 9
......@@ -765,7 +767,7 @@ static int omap_sham_update(struct ahash_request *req)
/*
* faster to use CPU for short transfers
*/
ctx->flags |= FLAGS_CPU;
ctx->flags |= BIT(FLAGS_CPU);
}
} else if (ctx->bufcnt + ctx->total < ctx->buflen) {
omap_sham_append_sg(ctx);
......@@ -802,9 +804,9 @@ static int omap_sham_final(struct ahash_request *req)
{
struct omap_sham_reqctx *ctx = ahash_request_ctx(req);
ctx->flags |= FLAGS_FINUP;
ctx->flags |= BIT(FLAGS_FINUP);
if (ctx->flags & FLAGS_ERROR)
if (ctx->flags & BIT(FLAGS_ERROR))
return 0; /* uncompleted hash is not needed */
/* OMAP HW accel works only with buffers >= 9 */
......@@ -823,7 +825,7 @@ static int omap_sham_finup(struct ahash_request *req)
struct omap_sham_reqctx *ctx = ahash_request_ctx(req);
int err1, err2;
ctx->flags |= FLAGS_FINUP;
ctx->flags |= BIT(FLAGS_FINUP);
err1 = omap_sham_update(req);
if (err1 == -EINPROGRESS || err1 == -EBUSY)
......@@ -895,7 +897,7 @@ static int omap_sham_cra_init_alg(struct crypto_tfm *tfm, const char *alg_base)
if (alg_base) {
struct omap_sham_hmac_ctx *bctx = tctx->base;
tctx->flags |= FLAGS_HMAC;
tctx->flags |= BIT(FLAGS_HMAC);
bctx->shash = crypto_alloc_shash(alg_base, 0,
CRYPTO_ALG_NEED_FALLBACK);
if (IS_ERR(bctx->shash)) {
......@@ -932,7 +934,7 @@ static void omap_sham_cra_exit(struct crypto_tfm *tfm)
crypto_free_shash(tctx->fallback);
tctx->fallback = NULL;
if (tctx->flags & FLAGS_HMAC) {
if (tctx->flags & BIT(FLAGS_HMAC)) {
struct omap_sham_hmac_ctx *bctx = tctx->base;
crypto_free_shash(bctx->shash);
}
......@@ -1036,51 +1038,46 @@ static struct ahash_alg algs[] = {
static void omap_sham_done_task(unsigned long data)
{
struct omap_sham_dev *dd = (struct omap_sham_dev *)data;
struct ahash_request *req = dd->req;
struct omap_sham_reqctx *ctx = ahash_request_ctx(req);
int ready = 0, err = 0;
int err = 0;
if (ctx->flags & FLAGS_OUTPUT_READY) {
ctx->flags &= ~FLAGS_OUTPUT_READY;
ready = 1;
if (!test_bit(FLAGS_BUSY, &dd->flags)) {
omap_sham_handle_queue(dd, NULL);
return;
}
if (dd->flags & FLAGS_DMA_ACTIVE) {
dd->flags &= ~FLAGS_DMA_ACTIVE;
omap_sham_update_dma_stop(dd);
if (!dd->err)
if (test_bit(FLAGS_CPU, &dd->flags)) {
if (test_and_clear_bit(FLAGS_OUTPUT_READY, &dd->flags))
goto finish;
} else if (test_bit(FLAGS_DMA_READY, &dd->flags)) {
if (test_and_clear_bit(FLAGS_DMA_ACTIVE, &dd->flags)) {
omap_sham_update_dma_stop(dd);
if (dd->err) {
err = dd->err;
goto finish;
}
}
if (test_and_clear_bit(FLAGS_OUTPUT_READY, &dd->flags)) {
/* hash or semi-hash ready */
clear_bit(FLAGS_DMA_READY, &dd->flags);
err = omap_sham_update_dma_start(dd);
if (err != -EINPROGRESS)
goto finish;
}
}
err = dd->err ? : err;
if (err != -EINPROGRESS && (ready || err)) {
dev_dbg(dd->dev, "update done: err: %d\n", err);
/* finish curent request */
omap_sham_finish_req(req, err);
/* start new request */
omap_sham_handle_queue(dd, NULL);
}
}
static void omap_sham_queue_task(unsigned long data)
{
struct omap_sham_dev *dd = (struct omap_sham_dev *)data;
return;
omap_sham_handle_queue(dd, NULL);
finish:
dev_dbg(dd->dev, "update done: err: %d\n", err);
/* finish curent request */
omap_sham_finish_req(dd->req, err);
}
static irqreturn_t omap_sham_irq(int irq, void *dev_id)
{
struct omap_sham_dev *dd = dev_id;
struct omap_sham_reqctx *ctx = ahash_request_ctx(dd->req);
if (!ctx) {
dev_err(dd->dev, "unknown interrupt.\n");
return IRQ_HANDLED;
}
if (unlikely(ctx->flags & FLAGS_FINAL))
if (unlikely(test_bit(FLAGS_FINAL, &dd->flags)))
/* final -> allow device to go to power-saving mode */
omap_sham_write_mask(dd, SHA_REG_CTRL, 0, SHA_REG_CTRL_LENGTH);
......@@ -1088,8 +1085,12 @@ static irqreturn_t omap_sham_irq(int irq, void *dev_id)
SHA_REG_CTRL_OUTPUT_READY);
omap_sham_read(dd, SHA_REG_CTRL);
ctx->flags |= FLAGS_OUTPUT_READY;
dd->err = 0;
if (!test_bit(FLAGS_BUSY, &dd->flags)) {
dev_warn(dd->dev, "Interrupt when no active requests.\n");
return IRQ_HANDLED;
}
set_bit(FLAGS_OUTPUT_READY, &dd->flags);
tasklet_schedule(&dd->done_task);
return IRQ_HANDLED;
......@@ -1102,9 +1103,10 @@ static void omap_sham_dma_callback(int lch, u16 ch_status, void *data)
if (ch_status != OMAP_DMA_BLOCK_IRQ) {
pr_err("omap-sham DMA error status: 0x%hx\n", ch_status);
dd->err = -EIO;
dd->flags &= ~FLAGS_INIT; /* request to re-initialize */
clear_bit(FLAGS_INIT, &dd->flags);/* request to re-initialize */
}
set_bit(FLAGS_DMA_READY, &dd->flags);
tasklet_schedule(&dd->done_task);
}
......@@ -1151,7 +1153,6 @@ static int __devinit omap_sham_probe(struct platform_device *pdev)
INIT_LIST_HEAD(&dd->list);
spin_lock_init(&dd->lock);
tasklet_init(&dd->done_task, omap_sham_done_task, (unsigned long)dd);
tasklet_init(&dd->queue_task, omap_sham_queue_task, (unsigned long)dd);
crypto_init_queue(&dd->queue, OMAP_SHAM_QUEUE_LENGTH);
dd->irq = -1;
......@@ -1260,7 +1261,6 @@ static int __devexit omap_sham_remove(struct platform_device *pdev)
for (i = 0; i < ARRAY_SIZE(algs); i++)
crypto_unregister_ahash(&algs[i]);
tasklet_kill(&dd->done_task);
tasklet_kill(&dd->queue_task);
iounmap(dd->io_base);
clk_put(dd->iclk);
omap_sham_dma_cleanup(dd);
......
drivers/crypto/talitos.c
浏览文件 @ a23a334b
/*
* talitos - Freescale Integrated Security Engine (SEC) device driver
*
* Copyright (c) 2008-2010 Freescale Semiconductor, Inc.
* Copyright (c) 2008-2011 Freescale Semiconductor, Inc.
*
* Scatterlist Crypto API glue code copied from files with the following:
* Copyright (c) 2006-2007 Herbert Xu <herbert@gondor.apana.org.au>
......@@ -282,6 +282,7 @@ static int init_device(struct device *dev)
/**
* talitos_submit - submits a descriptor to the device for processing
* @dev: the SEC device to be used
* @ch: the SEC device channel to be used
* @desc: the descriptor to be processed by the device
* @callback: whom to call when processing is complete
* @context: a handle for use by caller (optional)
......@@ -290,7 +291,7 @@ static int init_device(struct device *dev)
* callback must check err and feedback in descriptor header
* for device processing status.
*/
static int talitos_submit(struct device *dev, struct talitos_desc *desc,
static int talitos_submit(struct device *dev, int ch, struct talitos_desc *desc,
void (*callback)(struct device *dev,
struct talitos_desc *desc,
void *context, int error),
......@@ -298,15 +299,9 @@ static int talitos_submit(struct device *dev, struct talitos_desc *desc,
{
struct talitos_private *priv = dev_get_drvdata(dev);
struct talitos_request *request;
unsigned long flags, ch;
unsigned long flags;
int head;
/* select done notification */
desc->hdr |= DESC_HDR_DONE_NOTIFY;
/* emulate SEC's round-robin channel fifo polling scheme */
ch = atomic_inc_return(&priv->last_chan) & (priv->num_channels - 1);
spin_lock_irqsave(&priv->chan[ch].head_lock, flags);
if (!atomic_inc_not_zero(&priv->chan[ch].submit_count)) {
......@@ -706,6 +701,7 @@ static void talitos_unregister_rng(struct device *dev)
struct talitos_ctx {
struct device *dev;
int ch;
__be32 desc_hdr_template;
u8 key[TALITOS_MAX_KEY_SIZE];
u8 iv[TALITOS_MAX_IV_LENGTH];
......@@ -1117,7 +1113,7 @@ static int ipsec_esp(struct talitos_edesc *edesc, struct aead_request *areq,
map_single_talitos_ptr(dev, &desc->ptr[6], ivsize, ctx->iv, 0,
DMA_FROM_DEVICE);
ret = talitos_submit(dev, desc, callback, areq);
ret = talitos_submit(dev, ctx->ch, desc, callback, areq);
if (ret != -EINPROGRESS) {
ipsec_esp_unmap(dev, edesc, areq);
kfree(edesc);
......@@ -1382,22 +1378,11 @@ static int ablkcipher_setkey(struct crypto_ablkcipher *cipher,
const u8 *key, unsigned int keylen)
{
struct talitos_ctx *ctx = crypto_ablkcipher_ctx(cipher);
struct ablkcipher_alg *alg = crypto_ablkcipher_alg(cipher);
if (keylen > TALITOS_MAX_KEY_SIZE)
goto badkey;
if (keylen < alg->min_keysize || keylen > alg->max_keysize)
goto badkey;
memcpy(&ctx->key, key, keylen);
ctx->keylen = keylen;
return 0;
badkey:
crypto_ablkcipher_set_flags(cipher, CRYPTO_TFM_RES_BAD_KEY_LEN);
return -EINVAL;
}
static void common_nonsnoop_unmap(struct device *dev,
......@@ -1433,7 +1418,6 @@ static void ablkcipher_done(struct device *dev,
static int common_nonsnoop(struct talitos_edesc *edesc,
struct ablkcipher_request *areq,
u8 *giv,
void (*callback) (struct device *dev,
struct talitos_desc *desc,
void *context, int error))
......@@ -1453,7 +1437,7 @@ static int common_nonsnoop(struct talitos_edesc *edesc,
/* cipher iv */
ivsize = crypto_ablkcipher_ivsize(cipher);
map_single_talitos_ptr(dev, &desc->ptr[1], ivsize, giv ?: areq->info, 0,
map_single_talitos_ptr(dev, &desc->ptr[1], ivsize, areq->info, 0,
DMA_TO_DEVICE);
/* cipher key */
......@@ -1524,7 +1508,7 @@ static int common_nonsnoop(struct talitos_edesc *edesc,
to_talitos_ptr(&desc->ptr[6], 0);
desc->ptr[6].j_extent = 0;
ret = talitos_submit(dev, desc, callback, areq);
ret = talitos_submit(dev, ctx->ch, desc, callback, areq);
if (ret != -EINPROGRESS) {
common_nonsnoop_unmap(dev, edesc, areq);
kfree(edesc);
......@@ -1556,7 +1540,7 @@ static int ablkcipher_encrypt(struct ablkcipher_request *areq)
/* set encrypt */
edesc->desc.hdr = ctx->desc_hdr_template | DESC_HDR_MODE0_ENCRYPT;
return common_nonsnoop(edesc, areq, NULL, ablkcipher_done);
return common_nonsnoop(edesc, areq, ablkcipher_done);
}
static int ablkcipher_decrypt(struct ablkcipher_request *areq)
......@@ -1572,7 +1556,7 @@ static int ablkcipher_decrypt(struct ablkcipher_request *areq)
edesc->desc.hdr = ctx->desc_hdr_template | DESC_HDR_DIR_INBOUND;
return common_nonsnoop(edesc, areq, NULL, ablkcipher_done);
return common_nonsnoop(edesc, areq, ablkcipher_done);
}
static void common_nonsnoop_hash_unmap(struct device *dev,
......@@ -1703,7 +1687,7 @@ static int common_nonsnoop_hash(struct talitos_edesc *edesc,
/* last DWORD empty */
desc->ptr[6] = zero_entry;
ret = talitos_submit(dev, desc, callback, areq);
ret = talitos_submit(dev, ctx->ch, desc, callback, areq);
if (ret != -EINPROGRESS) {
common_nonsnoop_hash_unmap(dev, edesc, areq);
kfree(edesc);
......@@ -2244,6 +2228,7 @@ static int talitos_cra_init(struct crypto_tfm *tfm)
struct crypto_alg *alg = tfm->__crt_alg;
struct talitos_crypto_alg *talitos_alg;
struct talitos_ctx *ctx = crypto_tfm_ctx(tfm);
struct talitos_private *priv;
if ((alg->cra_flags & CRYPTO_ALG_TYPE_MASK) == CRYPTO_ALG_TYPE_AHASH)
talitos_alg = container_of(__crypto_ahash_alg(alg),
......@@ -2256,9 +2241,17 @@ static int talitos_cra_init(struct crypto_tfm *tfm)
/* update context with ptr to dev */
ctx->dev = talitos_alg->dev;
/* assign SEC channel to tfm in round-robin fashion */
priv = dev_get_drvdata(ctx->dev);
ctx->ch = atomic_inc_return(&priv->last_chan) &
(priv->num_channels - 1);
/* copy descriptor header template value */
ctx->desc_hdr_template = talitos_alg->algt.desc_hdr_template;
/* select done notification */
ctx->desc_hdr_template |= DESC_HDR_DONE_NOTIFY;
return 0;
}
......
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