diff options
Diffstat (limited to 'crypto/userspace/cryptodev_int.h')
| -rw-r--r-- | crypto/userspace/cryptodev_int.h | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/crypto/userspace/cryptodev_int.h b/crypto/userspace/cryptodev_int.h index a0d30731d40..3c6eca475a2 100644 --- a/crypto/userspace/cryptodev_int.h +++ b/crypto/userspace/cryptodev_int.h @@ -24,6 +24,18 @@ extern int cryptodev_verbosity; +/* For zero copy */ +int __get_userbuf(uint8_t *addr, uint32_t len, int write, + int pgcount, struct page **pg, struct scatterlist *sg); +void release_user_pages(struct page **pg, int pagecount); + +/* last page - first page + 1 */ +#define PAGECOUNT(buf, buflen) \ + ((((unsigned long)(buf + buflen - 1) & PAGE_MASK) >> PAGE_SHIFT) - \ + (((unsigned long) buf & PAGE_MASK) >> PAGE_SHIFT) + 1) + +#define DEFAULT_PREALLOC_PAGES 32 + struct cipher_data { int init; /* 0 uninitialized */ @@ -39,8 +51,8 @@ struct cipher_data int cryptodev_cipher_init(struct cipher_data* out, const char* alg_name, uint8_t * key, size_t keylen); void cryptodev_cipher_deinit(struct cipher_data* cdata); -ssize_t cryptodev_cipher_decrypt( struct cipher_data* cdata, struct scatterlist *sg1, struct scatterlist *sg2, size_t len); -ssize_t cryptodev_cipher_encrypt( struct cipher_data* cdata, struct scatterlist *sg1, struct scatterlist *sg2, size_t len); +ssize_t cryptodev_cipher_decrypt( struct cipher_data* cdata, const struct scatterlist *sg1, struct scatterlist *sg2, size_t len); +ssize_t cryptodev_cipher_encrypt( struct cipher_data* cdata, const struct scatterlist *sg1, struct scatterlist *sg2, size_t len); void cryptodev_cipher_set_iv(struct cipher_data* cdata, void* iv, size_t iv_size); int _cryptodev_cipher_decrypt(struct cipher_data* cdata, const void* ciphertext, |