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81760ea6a9
This patch adds helpers to check whether a given tfm is currently queued. This is meant to be used by ablk_helper and similar entities to ensure that no reordering is introduced because of requests queued in cryptd with respect to requests being processed in softirq context. The per-cpu queue length limit is also increased to 1000 in line with network limits. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
76 lines
2.1 KiB
C
76 lines
2.1 KiB
C
/*
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* Software async crypto daemon
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*
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* Added AEAD support to cryptd.
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* Authors: Tadeusz Struk (tadeusz.struk@intel.com)
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* Adrian Hoban <adrian.hoban@intel.com>
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* Gabriele Paoloni <gabriele.paoloni@intel.com>
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* Aidan O'Mahony (aidan.o.mahony@intel.com)
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* Copyright (c) 2010, Intel Corporation.
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*/
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#ifndef _CRYPTO_CRYPT_H
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#define _CRYPTO_CRYPT_H
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#include <linux/crypto.h>
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#include <linux/kernel.h>
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#include <crypto/aead.h>
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#include <crypto/hash.h>
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struct cryptd_ablkcipher {
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struct crypto_ablkcipher base;
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};
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static inline struct cryptd_ablkcipher *__cryptd_ablkcipher_cast(
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struct crypto_ablkcipher *tfm)
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{
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return (struct cryptd_ablkcipher *)tfm;
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}
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/* alg_name should be algorithm to be cryptd-ed */
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struct cryptd_ablkcipher *cryptd_alloc_ablkcipher(const char *alg_name,
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u32 type, u32 mask);
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struct crypto_blkcipher *cryptd_ablkcipher_child(struct cryptd_ablkcipher *tfm);
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bool cryptd_ablkcipher_queued(struct cryptd_ablkcipher *tfm);
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void cryptd_free_ablkcipher(struct cryptd_ablkcipher *tfm);
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struct cryptd_ahash {
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struct crypto_ahash base;
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};
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static inline struct cryptd_ahash *__cryptd_ahash_cast(
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struct crypto_ahash *tfm)
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{
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return (struct cryptd_ahash *)tfm;
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}
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/* alg_name should be algorithm to be cryptd-ed */
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struct cryptd_ahash *cryptd_alloc_ahash(const char *alg_name,
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u32 type, u32 mask);
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struct crypto_shash *cryptd_ahash_child(struct cryptd_ahash *tfm);
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struct shash_desc *cryptd_shash_desc(struct ahash_request *req);
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/* Must be called without moving CPUs. */
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bool cryptd_ahash_queued(struct cryptd_ahash *tfm);
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void cryptd_free_ahash(struct cryptd_ahash *tfm);
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struct cryptd_aead {
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struct crypto_aead base;
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};
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static inline struct cryptd_aead *__cryptd_aead_cast(
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struct crypto_aead *tfm)
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{
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return (struct cryptd_aead *)tfm;
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}
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struct cryptd_aead *cryptd_alloc_aead(const char *alg_name,
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u32 type, u32 mask);
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struct crypto_aead *cryptd_aead_child(struct cryptd_aead *tfm);
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/* Must be called without moving CPUs. */
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bool cryptd_aead_queued(struct cryptd_aead *tfm);
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void cryptd_free_aead(struct cryptd_aead *tfm);
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#endif
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