crypto: qat - Convert to new AEAD interface
This patch converts qat to the new AEAD interface. IV generation has been removed since it's equivalent to a software implementation. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Tested-by: Tadeusz Struk <tadeusz.struk@intel.com>
This commit is contained in:
Herbert Xu
parent
c1359495c8
commit
e19ab1211d
1 changed files with 127 additions and 208 deletions
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@ -53,7 +53,6 @@
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#include <crypto/hash.h>
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#include <crypto/algapi.h>
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#include <crypto/authenc.h>
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#include <crypto/rng.h>
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#include <linux/dma-mapping.h>
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#include "adf_accel_devices.h"
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#include "adf_transport.h"
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@ -113,9 +112,6 @@ struct qat_alg_aead_ctx {
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struct crypto_shash *hash_tfm;
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enum icp_qat_hw_auth_algo qat_hash_alg;
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struct qat_crypto_instance *inst;
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struct crypto_tfm *tfm;
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uint8_t salt[AES_BLOCK_SIZE];
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spinlock_t lock; /* protects qat_alg_aead_ctx struct */
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};
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struct qat_alg_ablkcipher_ctx {
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@ -273,11 +269,11 @@ static void qat_alg_init_common_hdr(struct icp_qat_fw_comn_req_hdr *header)
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ICP_QAT_FW_LA_NO_UPDATE_STATE);
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}
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static int qat_alg_aead_init_enc_session(struct qat_alg_aead_ctx *ctx,
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static int qat_alg_aead_init_enc_session(struct crypto_aead *aead_tfm,
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int alg,
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struct crypto_authenc_keys *keys)
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{
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struct crypto_aead *aead_tfm = __crypto_aead_cast(ctx->tfm);
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struct qat_alg_aead_ctx *ctx = crypto_aead_ctx(aead_tfm);
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unsigned int digestsize = crypto_aead_crt(aead_tfm)->authsize;
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struct qat_enc *enc_ctx = &ctx->enc_cd->qat_enc_cd;
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struct icp_qat_hw_cipher_algo_blk *cipher = &enc_ctx->cipher;
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@ -353,11 +349,11 @@ static int qat_alg_aead_init_enc_session(struct qat_alg_aead_ctx *ctx,
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return 0;
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}
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static int qat_alg_aead_init_dec_session(struct qat_alg_aead_ctx *ctx,
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static int qat_alg_aead_init_dec_session(struct crypto_aead *aead_tfm,
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int alg,
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struct crypto_authenc_keys *keys)
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{
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struct crypto_aead *aead_tfm = __crypto_aead_cast(ctx->tfm);
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struct qat_alg_aead_ctx *ctx = crypto_aead_ctx(aead_tfm);
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unsigned int digestsize = crypto_aead_crt(aead_tfm)->authsize;
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struct qat_dec *dec_ctx = &ctx->dec_cd->qat_dec_cd;
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struct icp_qat_hw_auth_algo_blk *hash = &dec_ctx->hash;
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@ -510,30 +506,27 @@ static int qat_alg_validate_key(int key_len, int *alg)
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return 0;
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}
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static int qat_alg_aead_init_sessions(struct qat_alg_aead_ctx *ctx,
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static int qat_alg_aead_init_sessions(struct crypto_aead *tfm,
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const uint8_t *key, unsigned int keylen)
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{
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struct crypto_authenc_keys keys;
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int alg;
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if (crypto_rng_get_bytes(crypto_default_rng, ctx->salt, AES_BLOCK_SIZE))
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return -EFAULT;
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if (crypto_authenc_extractkeys(&keys, key, keylen))
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goto bad_key;
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if (qat_alg_validate_key(keys.enckeylen, &alg))
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goto bad_key;
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if (qat_alg_aead_init_enc_session(ctx, alg, &keys))
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if (qat_alg_aead_init_enc_session(tfm, alg, &keys))
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goto error;
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if (qat_alg_aead_init_dec_session(ctx, alg, &keys))
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if (qat_alg_aead_init_dec_session(tfm, alg, &keys))
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goto error;
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return 0;
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bad_key:
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crypto_tfm_set_flags(ctx->tfm, CRYPTO_TFM_RES_BAD_KEY_LEN);
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crypto_aead_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN);
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return -EINVAL;
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error:
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return -EFAULT;
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@ -562,7 +555,6 @@ static int qat_alg_aead_setkey(struct crypto_aead *tfm, const uint8_t *key,
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struct qat_alg_aead_ctx *ctx = crypto_aead_ctx(tfm);
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struct device *dev;
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spin_lock(&ctx->lock);
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if (ctx->enc_cd) {
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/* rekeying */
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dev = &GET_DEV(ctx->inst->accel_dev);
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@ -576,7 +568,6 @@ static int qat_alg_aead_setkey(struct crypto_aead *tfm, const uint8_t *key,
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struct qat_crypto_instance *inst =
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qat_crypto_get_instance_node(node);
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if (!inst) {
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spin_unlock(&ctx->lock);
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return -EINVAL;
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}
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@ -586,19 +577,16 @@ static int qat_alg_aead_setkey(struct crypto_aead *tfm, const uint8_t *key,
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&ctx->enc_cd_paddr,
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GFP_ATOMIC);
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if (!ctx->enc_cd) {
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spin_unlock(&ctx->lock);
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return -ENOMEM;
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}
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ctx->dec_cd = dma_zalloc_coherent(dev, sizeof(*ctx->dec_cd),
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&ctx->dec_cd_paddr,
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GFP_ATOMIC);
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if (!ctx->dec_cd) {
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spin_unlock(&ctx->lock);
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goto out_free_enc;
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}
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}
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spin_unlock(&ctx->lock);
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if (qat_alg_aead_init_sessions(ctx, key, keylen))
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if (qat_alg_aead_init_sessions(tfm, key, keylen))
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goto out_free_all;
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return 0;
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@ -649,22 +637,20 @@ static void qat_alg_free_bufl(struct qat_crypto_instance *inst,
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}
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static int qat_alg_sgl_to_bufl(struct qat_crypto_instance *inst,
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struct scatterlist *assoc, int assoclen,
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struct scatterlist *sgl,
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struct scatterlist *sglout, uint8_t *iv,
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uint8_t ivlen,
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struct scatterlist *sglout,
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struct qat_crypto_request *qat_req)
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{
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struct device *dev = &GET_DEV(inst->accel_dev);
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int i, bufs = 0, sg_nctr = 0;
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int n = sg_nents(sgl), assoc_n = sg_nents(assoc);
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int i, sg_nctr = 0;
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int n = sg_nents(sgl);
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struct qat_alg_buf_list *bufl;
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struct qat_alg_buf_list *buflout = NULL;
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dma_addr_t blp;
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dma_addr_t bloutp = 0;
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struct scatterlist *sg;
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size_t sz_out, sz = sizeof(struct qat_alg_buf_list) +
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((1 + n + assoc_n) * sizeof(struct qat_alg_buf));
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((1 + n) * sizeof(struct qat_alg_buf));
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if (unlikely(!n))
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return -EINVAL;
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@ -678,35 +664,8 @@ static int qat_alg_sgl_to_bufl(struct qat_crypto_instance *inst,
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if (unlikely(dma_mapping_error(dev, blp)))
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goto err;
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for_each_sg(assoc, sg, assoc_n, i) {
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if (!sg->length)
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continue;
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if (!(assoclen > 0))
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break;
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bufl->bufers[bufs].addr =
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dma_map_single(dev, sg_virt(sg),
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min_t(int, assoclen, sg->length),
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DMA_BIDIRECTIONAL);
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bufl->bufers[bufs].len = min_t(int, assoclen, sg->length);
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if (unlikely(dma_mapping_error(dev, bufl->bufers[bufs].addr)))
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goto err;
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bufs++;
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assoclen -= sg->length;
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}
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if (ivlen) {
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bufl->bufers[bufs].addr = dma_map_single(dev, iv, ivlen,
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DMA_BIDIRECTIONAL);
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bufl->bufers[bufs].len = ivlen;
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if (unlikely(dma_mapping_error(dev, bufl->bufers[bufs].addr)))
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goto err;
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bufs++;
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}
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for_each_sg(sgl, sg, n, i) {
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int y = sg_nctr + bufs;
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int y = sg_nctr;
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if (!sg->length)
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continue;
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@ -719,7 +678,7 @@ static int qat_alg_sgl_to_bufl(struct qat_crypto_instance *inst,
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goto err;
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sg_nctr++;
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}
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bufl->num_bufs = sg_nctr + bufs;
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bufl->num_bufs = sg_nctr;
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qat_req->buf.bl = bufl;
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qat_req->buf.blp = blp;
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qat_req->buf.sz = sz;
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@ -729,7 +688,7 @@ static int qat_alg_sgl_to_bufl(struct qat_crypto_instance *inst,
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n = sg_nents(sglout);
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sz_out = sizeof(struct qat_alg_buf_list) +
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((1 + n + assoc_n) * sizeof(struct qat_alg_buf));
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((1 + n) * sizeof(struct qat_alg_buf));
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sg_nctr = 0;
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buflout = kzalloc_node(sz_out, GFP_ATOMIC,
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dev_to_node(&GET_DEV(inst->accel_dev)));
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@ -739,14 +698,8 @@ static int qat_alg_sgl_to_bufl(struct qat_crypto_instance *inst,
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if (unlikely(dma_mapping_error(dev, bloutp)))
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goto err;
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bufers = buflout->bufers;
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/* For out of place operation dma map only data and
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* reuse assoc mapping and iv */
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for (i = 0; i < bufs; i++) {
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bufers[i].len = bufl->bufers[i].len;
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bufers[i].addr = bufl->bufers[i].addr;
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}
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for_each_sg(sglout, sg, n, i) {
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int y = sg_nctr + bufs;
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int y = sg_nctr;
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if (!sg->length)
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continue;
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@ -759,7 +712,7 @@ static int qat_alg_sgl_to_bufl(struct qat_crypto_instance *inst,
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bufers[y].len = sg->length;
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sg_nctr++;
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}
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buflout->num_bufs = sg_nctr + bufs;
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buflout->num_bufs = sg_nctr;
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buflout->num_mapped_bufs = sg_nctr;
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qat_req->buf.blout = buflout;
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qat_req->buf.bloutp = bloutp;
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@ -773,7 +726,7 @@ static int qat_alg_sgl_to_bufl(struct qat_crypto_instance *inst,
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err:
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dev_err(dev, "Failed to map buf for dma\n");
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sg_nctr = 0;
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for (i = 0; i < n + bufs; i++)
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for (i = 0; i < n; i++)
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if (!dma_mapping_error(dev, bufl->bufers[i].addr))
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dma_unmap_single(dev, bufl->bufers[i].addr,
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bufl->bufers[i].len,
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@ -784,7 +737,7 @@ err:
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kfree(bufl);
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if (sgl != sglout && buflout) {
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n = sg_nents(sglout);
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for (i = bufs; i < n + bufs; i++)
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for (i = 0; i < n; i++)
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if (!dma_mapping_error(dev, buflout->bufers[i].addr))
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dma_unmap_single(dev, buflout->bufers[i].addr,
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buflout->bufers[i].len,
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@ -847,9 +800,7 @@ static int qat_alg_aead_dec(struct aead_request *areq)
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int digst_size = crypto_aead_crt(aead_tfm)->authsize;
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int ret, ctr = 0;
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ret = qat_alg_sgl_to_bufl(ctx->inst, areq->assoc, areq->assoclen,
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areq->src, areq->dst, areq->iv,
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AES_BLOCK_SIZE, qat_req);
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ret = qat_alg_sgl_to_bufl(ctx->inst, areq->src, areq->dst, qat_req);
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if (unlikely(ret))
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return ret;
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@ -863,12 +814,11 @@ static int qat_alg_aead_dec(struct aead_request *areq)
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qat_req->req.comn_mid.dest_data_addr = qat_req->buf.bloutp;
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cipher_param = (void *)&qat_req->req.serv_specif_rqpars;
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cipher_param->cipher_length = areq->cryptlen - digst_size;
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cipher_param->cipher_offset = areq->assoclen + AES_BLOCK_SIZE;
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cipher_param->cipher_offset = areq->assoclen;
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memcpy(cipher_param->u.cipher_IV_array, areq->iv, AES_BLOCK_SIZE);
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auth_param = (void *)((uint8_t *)cipher_param + sizeof(*cipher_param));
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auth_param->auth_off = 0;
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auth_param->auth_len = areq->assoclen +
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cipher_param->cipher_length + AES_BLOCK_SIZE;
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auth_param->auth_len = areq->assoclen + cipher_param->cipher_length;
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do {
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ret = adf_send_message(ctx->inst->sym_tx, (uint32_t *)msg);
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} while (ret == -EAGAIN && ctr++ < 10);
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@ -880,8 +830,7 @@ static int qat_alg_aead_dec(struct aead_request *areq)
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return -EINPROGRESS;
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}
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static int qat_alg_aead_enc_internal(struct aead_request *areq, uint8_t *iv,
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int enc_iv)
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static int qat_alg_aead_enc(struct aead_request *areq)
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{
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struct crypto_aead *aead_tfm = crypto_aead_reqtfm(areq);
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struct crypto_tfm *tfm = crypto_aead_tfm(aead_tfm);
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@ -890,11 +839,10 @@ static int qat_alg_aead_enc_internal(struct aead_request *areq, uint8_t *iv,
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struct icp_qat_fw_la_cipher_req_params *cipher_param;
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struct icp_qat_fw_la_auth_req_params *auth_param;
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struct icp_qat_fw_la_bulk_req *msg;
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uint8_t *iv = areq->iv;
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int ret, ctr = 0;
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ret = qat_alg_sgl_to_bufl(ctx->inst, areq->assoc, areq->assoclen,
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areq->src, areq->dst, iv, AES_BLOCK_SIZE,
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qat_req);
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ret = qat_alg_sgl_to_bufl(ctx->inst, areq->src, areq->dst, qat_req);
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if (unlikely(ret))
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return ret;
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@ -909,16 +857,12 @@ static int qat_alg_aead_enc_internal(struct aead_request *areq, uint8_t *iv,
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cipher_param = (void *)&qat_req->req.serv_specif_rqpars;
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auth_param = (void *)((uint8_t *)cipher_param + sizeof(*cipher_param));
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if (enc_iv) {
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cipher_param->cipher_length = areq->cryptlen + AES_BLOCK_SIZE;
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cipher_param->cipher_offset = areq->assoclen;
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} else {
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memcpy(cipher_param->u.cipher_IV_array, iv, AES_BLOCK_SIZE);
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cipher_param->cipher_length = areq->cryptlen;
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cipher_param->cipher_offset = areq->assoclen + AES_BLOCK_SIZE;
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}
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cipher_param->cipher_offset = areq->assoclen;
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auth_param->auth_off = 0;
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auth_param->auth_len = areq->assoclen + areq->cryptlen + AES_BLOCK_SIZE;
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auth_param->auth_len = areq->assoclen + areq->cryptlen;
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do {
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ret = adf_send_message(ctx->inst->sym_tx, (uint32_t *)msg);
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@ -931,25 +875,6 @@ static int qat_alg_aead_enc_internal(struct aead_request *areq, uint8_t *iv,
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return -EINPROGRESS;
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}
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static int qat_alg_aead_enc(struct aead_request *areq)
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{
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return qat_alg_aead_enc_internal(areq, areq->iv, 0);
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}
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static int qat_alg_aead_genivenc(struct aead_givcrypt_request *req)
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{
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struct crypto_aead *aead_tfm = crypto_aead_reqtfm(&req->areq);
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struct crypto_tfm *tfm = crypto_aead_tfm(aead_tfm);
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struct qat_alg_aead_ctx *ctx = crypto_tfm_ctx(tfm);
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__be64 seq;
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memcpy(req->giv, ctx->salt, AES_BLOCK_SIZE);
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seq = cpu_to_be64(req->seq);
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memcpy(req->giv + AES_BLOCK_SIZE - sizeof(uint64_t),
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&seq, sizeof(uint64_t));
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return qat_alg_aead_enc_internal(&req->areq, req->giv, 1);
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}
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static int qat_alg_ablkcipher_setkey(struct crypto_ablkcipher *tfm,
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const uint8_t *key,
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unsigned int keylen)
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@ -1021,8 +946,7 @@ static int qat_alg_ablkcipher_encrypt(struct ablkcipher_request *req)
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struct icp_qat_fw_la_bulk_req *msg;
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int ret, ctr = 0;
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ret = qat_alg_sgl_to_bufl(ctx->inst, NULL, 0, req->src, req->dst,
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NULL, 0, qat_req);
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ret = qat_alg_sgl_to_bufl(ctx->inst, req->src, req->dst, qat_req);
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if (unlikely(ret))
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return ret;
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@ -1059,8 +983,7 @@ static int qat_alg_ablkcipher_decrypt(struct ablkcipher_request *req)
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struct icp_qat_fw_la_bulk_req *msg;
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int ret, ctr = 0;
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ret = qat_alg_sgl_to_bufl(ctx->inst, NULL, 0, req->src, req->dst,
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NULL, 0, qat_req);
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ret = qat_alg_sgl_to_bufl(ctx->inst, req->src, req->dst, qat_req);
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if (unlikely(ret))
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return ret;
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@ -1087,46 +1010,42 @@ static int qat_alg_ablkcipher_decrypt(struct ablkcipher_request *req)
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return -EINPROGRESS;
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}
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|
||||
static int qat_alg_aead_init(struct crypto_tfm *tfm,
|
||||
static int qat_alg_aead_init(struct crypto_aead *tfm,
|
||||
enum icp_qat_hw_auth_algo hash,
|
||||
const char *hash_name)
|
||||
{
|
||||
struct qat_alg_aead_ctx *ctx = crypto_tfm_ctx(tfm);
|
||||
struct qat_alg_aead_ctx *ctx = crypto_aead_ctx(tfm);
|
||||
|
||||
ctx->hash_tfm = crypto_alloc_shash(hash_name, 0, 0);
|
||||
if (IS_ERR(ctx->hash_tfm))
|
||||
return -EFAULT;
|
||||
spin_lock_init(&ctx->lock);
|
||||
return PTR_ERR(ctx->hash_tfm);
|
||||
ctx->qat_hash_alg = hash;
|
||||
crypto_aead_set_reqsize(__crypto_aead_cast(tfm),
|
||||
sizeof(struct aead_request) +
|
||||
crypto_aead_set_reqsize(tfm, sizeof(struct aead_request) +
|
||||
sizeof(struct qat_crypto_request));
|
||||
ctx->tfm = tfm;
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int qat_alg_aead_sha1_init(struct crypto_tfm *tfm)
|
||||
static int qat_alg_aead_sha1_init(struct crypto_aead *tfm)
|
||||
{
|
||||
return qat_alg_aead_init(tfm, ICP_QAT_HW_AUTH_ALGO_SHA1, "sha1");
|
||||
}
|
||||
|
||||
static int qat_alg_aead_sha256_init(struct crypto_tfm *tfm)
|
||||
static int qat_alg_aead_sha256_init(struct crypto_aead *tfm)
|
||||
{
|
||||
return qat_alg_aead_init(tfm, ICP_QAT_HW_AUTH_ALGO_SHA256, "sha256");
|
||||
}
|
||||
|
||||
static int qat_alg_aead_sha512_init(struct crypto_tfm *tfm)
|
||||
static int qat_alg_aead_sha512_init(struct crypto_aead *tfm)
|
||||
{
|
||||
return qat_alg_aead_init(tfm, ICP_QAT_HW_AUTH_ALGO_SHA512, "sha512");
|
||||
}
|
||||
|
||||
static void qat_alg_aead_exit(struct crypto_tfm *tfm)
|
||||
static void qat_alg_aead_exit(struct crypto_aead *tfm)
|
||||
{
|
||||
struct qat_alg_aead_ctx *ctx = crypto_tfm_ctx(tfm);
|
||||
struct qat_alg_aead_ctx *ctx = crypto_aead_ctx(tfm);
|
||||
struct qat_crypto_instance *inst = ctx->inst;
|
||||
struct device *dev;
|
||||
|
||||
if (!IS_ERR(ctx->hash_tfm))
|
||||
crypto_free_shash(ctx->hash_tfm);
|
||||
|
||||
if (!inst)
|
||||
|
|
@ -1184,73 +1103,61 @@ static void qat_alg_ablkcipher_exit(struct crypto_tfm *tfm)
|
|||
qat_crypto_put_instance(inst);
|
||||
}
|
||||
|
||||
static struct crypto_alg qat_algs[] = { {
|
||||
|
||||
static struct aead_alg qat_aeads[] = { {
|
||||
.base = {
|
||||
.cra_name = "authenc(hmac(sha1),cbc(aes))",
|
||||
.cra_driver_name = "qat_aes_cbc_hmac_sha1",
|
||||
.cra_priority = 4001,
|
||||
.cra_flags = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_ASYNC,
|
||||
.cra_flags = CRYPTO_ALG_ASYNC | CRYPTO_ALG_AEAD_NEW,
|
||||
.cra_blocksize = AES_BLOCK_SIZE,
|
||||
.cra_ctxsize = sizeof(struct qat_alg_aead_ctx),
|
||||
.cra_alignmask = 0,
|
||||
.cra_type = &crypto_aead_type,
|
||||
.cra_module = THIS_MODULE,
|
||||
.cra_init = qat_alg_aead_sha1_init,
|
||||
.cra_exit = qat_alg_aead_exit,
|
||||
.cra_u = {
|
||||
.aead = {
|
||||
},
|
||||
.init = qat_alg_aead_sha1_init,
|
||||
.exit = qat_alg_aead_exit,
|
||||
.setkey = qat_alg_aead_setkey,
|
||||
.decrypt = qat_alg_aead_dec,
|
||||
.encrypt = qat_alg_aead_enc,
|
||||
.givencrypt = qat_alg_aead_genivenc,
|
||||
.ivsize = AES_BLOCK_SIZE,
|
||||
.maxauthsize = SHA1_DIGEST_SIZE,
|
||||
},
|
||||
},
|
||||
}, {
|
||||
.base = {
|
||||
.cra_name = "authenc(hmac(sha256),cbc(aes))",
|
||||
.cra_driver_name = "qat_aes_cbc_hmac_sha256",
|
||||
.cra_priority = 4001,
|
||||
.cra_flags = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_ASYNC,
|
||||
.cra_flags = CRYPTO_ALG_ASYNC | CRYPTO_ALG_AEAD_NEW,
|
||||
.cra_blocksize = AES_BLOCK_SIZE,
|
||||
.cra_ctxsize = sizeof(struct qat_alg_aead_ctx),
|
||||
.cra_alignmask = 0,
|
||||
.cra_type = &crypto_aead_type,
|
||||
.cra_module = THIS_MODULE,
|
||||
.cra_init = qat_alg_aead_sha256_init,
|
||||
.cra_exit = qat_alg_aead_exit,
|
||||
.cra_u = {
|
||||
.aead = {
|
||||
},
|
||||
.init = qat_alg_aead_sha256_init,
|
||||
.exit = qat_alg_aead_exit,
|
||||
.setkey = qat_alg_aead_setkey,
|
||||
.decrypt = qat_alg_aead_dec,
|
||||
.encrypt = qat_alg_aead_enc,
|
||||
.givencrypt = qat_alg_aead_genivenc,
|
||||
.ivsize = AES_BLOCK_SIZE,
|
||||
.maxauthsize = SHA256_DIGEST_SIZE,
|
||||
},
|
||||
},
|
||||
}, {
|
||||
.base = {
|
||||
.cra_name = "authenc(hmac(sha512),cbc(aes))",
|
||||
.cra_driver_name = "qat_aes_cbc_hmac_sha512",
|
||||
.cra_priority = 4001,
|
||||
.cra_flags = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_ASYNC,
|
||||
.cra_flags = CRYPTO_ALG_ASYNC | CRYPTO_ALG_AEAD_NEW,
|
||||
.cra_blocksize = AES_BLOCK_SIZE,
|
||||
.cra_ctxsize = sizeof(struct qat_alg_aead_ctx),
|
||||
.cra_alignmask = 0,
|
||||
.cra_type = &crypto_aead_type,
|
||||
.cra_module = THIS_MODULE,
|
||||
.cra_init = qat_alg_aead_sha512_init,
|
||||
.cra_exit = qat_alg_aead_exit,
|
||||
.cra_u = {
|
||||
.aead = {
|
||||
},
|
||||
.init = qat_alg_aead_sha512_init,
|
||||
.exit = qat_alg_aead_exit,
|
||||
.setkey = qat_alg_aead_setkey,
|
||||
.decrypt = qat_alg_aead_dec,
|
||||
.encrypt = qat_alg_aead_enc,
|
||||
.givencrypt = qat_alg_aead_genivenc,
|
||||
.ivsize = AES_BLOCK_SIZE,
|
||||
.maxauthsize = SHA512_DIGEST_SIZE,
|
||||
},
|
||||
},
|
||||
}, {
|
||||
} };
|
||||
|
||||
static struct crypto_alg qat_algs[] = { {
|
||||
.cra_name = "cbc(aes)",
|
||||
.cra_driver_name = "qat_aes_cbc",
|
||||
.cra_priority = 4001,
|
||||
|
|
@ -1276,42 +1183,54 @@ static struct crypto_alg qat_algs[] = { {
|
|||
|
||||
int qat_algs_register(void)
|
||||
{
|
||||
int ret = 0;
|
||||
int ret = 0, i;
|
||||
|
||||
mutex_lock(&algs_lock);
|
||||
if (++active_devs == 1) {
|
||||
int i;
|
||||
if (++active_devs != 1)
|
||||
goto unlock;
|
||||
|
||||
for (i = 0; i < ARRAY_SIZE(qat_algs); i++)
|
||||
qat_algs[i].cra_flags =
|
||||
(qat_algs[i].cra_type == &crypto_aead_type) ?
|
||||
CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_ASYNC :
|
||||
CRYPTO_ALG_TYPE_ABLKCIPHER | CRYPTO_ALG_ASYNC;
|
||||
qat_algs[i].cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER | CRYPTO_ALG_ASYNC;
|
||||
|
||||
ret = crypto_register_algs(qat_algs, ARRAY_SIZE(qat_algs));
|
||||
}
|
||||
if (ret)
|
||||
goto unlock;
|
||||
|
||||
for (i = 0; i < ARRAY_SIZE(qat_aeads); i++)
|
||||
qat_aeads[i].base.cra_flags = CRYPTO_ALG_ASYNC | CRYPTO_ALG_AEAD_NEW;
|
||||
|
||||
ret = crypto_register_aeads(qat_aeads, ARRAY_SIZE(qat_aeads));
|
||||
if (ret)
|
||||
goto unreg_algs;
|
||||
|
||||
unlock:
|
||||
mutex_unlock(&algs_lock);
|
||||
return ret;
|
||||
|
||||
unreg_algs:
|
||||
crypto_unregister_algs(qat_algs, ARRAY_SIZE(qat_algs));
|
||||
goto unlock;
|
||||
}
|
||||
|
||||
int qat_algs_unregister(void)
|
||||
{
|
||||
int ret = 0;
|
||||
|
||||
mutex_lock(&algs_lock);
|
||||
if (--active_devs == 0)
|
||||
ret = crypto_unregister_algs(qat_algs, ARRAY_SIZE(qat_algs));
|
||||
if (--active_devs != 0)
|
||||
goto unlock;
|
||||
|
||||
crypto_unregister_aeads(qat_aeads, ARRAY_SIZE(qat_aeads));
|
||||
crypto_unregister_algs(qat_algs, ARRAY_SIZE(qat_algs));
|
||||
|
||||
unlock:
|
||||
mutex_unlock(&algs_lock);
|
||||
return ret;
|
||||
return 0;
|
||||
}
|
||||
|
||||
int qat_algs_init(void)
|
||||
{
|
||||
crypto_get_default_rng();
|
||||
return 0;
|
||||
}
|
||||
|
||||
void qat_algs_exit(void)
|
||||
{
|
||||
crypto_put_default_rng();
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in a new issue