[CRYPTO] cryptd: Add software async crypto daemon
This patch adds the cryptd module which is a template that takes a
synchronous software crypto algorithm and converts it to an asynchronous
one by executing it in a kernel thread.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
diff --git a/include/crypto/algapi.h b/include/crypto/algapi.h
index 7847fc2..b2b1e6e 100644
--- a/include/crypto/algapi.h
+++ b/include/crypto/algapi.h
@@ -138,6 +138,12 @@
return (void *)ALIGN(addr, align);
}
+static inline struct crypto_instance *crypto_tfm_alg_instance(
+ struct crypto_tfm *tfm)
+{
+ return container_of(tfm->__crt_alg, struct crypto_instance, alg);
+}
+
static inline void *crypto_instance_ctx(struct crypto_instance *inst)
{
return inst->__ctx;
@@ -154,6 +160,15 @@
return crypto_tfm_ctx(&tfm->base);
}
+static inline struct crypto_blkcipher *crypto_spawn_blkcipher(
+ struct crypto_spawn *spawn)
+{
+ u32 type = CRYPTO_ALG_TYPE_BLKCIPHER;
+ u32 mask = CRYPTO_ALG_TYPE_MASK | CRYPTO_ALG_ASYNC;
+
+ return __crypto_blkcipher_cast(crypto_spawn_tfm(spawn, type, mask));
+}
+
static inline void *crypto_blkcipher_ctx(struct crypto_blkcipher *tfm)
{
return crypto_tfm_ctx(&tfm->base);