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crypto: virtio - Read crypto services and algorithm masks

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Read the crypto services and algorithm masks which provides
information about the services and algorithms supported by
virtio-crypto backend.

Signed-off-by: Farhan Ali <alifm@linux.ibm.com>
Acked-by: Gonglei <arei.gonglei@huawei.com>
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Farhan Ali 2018-06-19 11:41:33 -04:00 committed by Herbert Xu
parent 0917b87312
commit b551bac14a
2 changed files with 43 additions and 0 deletions
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14
drivers/crypto/virtio/virtio_crypto_common.h
View File

@ -55,6 +55,20 @@ struct virtio_crypto {
/* Number of queue currently used by the driver */
u32 curr_queue;
/*
* Specifies the services mask which the device support,
* see VIRTIO_CRYPTO_SERVICE_*
*/
u32 crypto_services;
/* Detailed algorithms mask */
u32 cipher_algo_l;
u32 cipher_algo_h;
u32 hash_algo;
u32 mac_algo_l;
u32 mac_algo_h;
u32 aead_algo;
/* Maximum length of cipher key */
u32 max_cipher_key_len;
/* Maximum length of authenticated key */

29
drivers/crypto/virtio/virtio_crypto_core.c
View File

@ -303,6 +303,13 @@ static int virtcrypto_probe(struct virtio_device *vdev)
u32 max_data_queues = 0, max_cipher_key_len = 0;
u32 max_auth_key_len = 0;
u64 max_size = 0;
u32 cipher_algo_l = 0;
u32 cipher_algo_h = 0;
u32 hash_algo = 0;
u32 mac_algo_l = 0;
u32 mac_algo_h = 0;
u32 aead_algo = 0;
u32 crypto_services = 0;
if (!virtio_has_feature(vdev, VIRTIO_F_VERSION_1))
return -ENODEV;
@ -339,6 +346,20 @@ static int virtcrypto_probe(struct virtio_device *vdev)
max_auth_key_len, &max_auth_key_len);
virtio_cread(vdev, struct virtio_crypto_config,
max_size, &max_size);
virtio_cread(vdev, struct virtio_crypto_config,
crypto_services, &crypto_services);
virtio_cread(vdev, struct virtio_crypto_config,
cipher_algo_l, &cipher_algo_l);
virtio_cread(vdev, struct virtio_crypto_config,
cipher_algo_h, &cipher_algo_h);
virtio_cread(vdev, struct virtio_crypto_config,
hash_algo, &hash_algo);
virtio_cread(vdev, struct virtio_crypto_config,
mac_algo_l, &mac_algo_l);
virtio_cread(vdev, struct virtio_crypto_config,
mac_algo_h, &mac_algo_h);
virtio_cread(vdev, struct virtio_crypto_config,
aead_algo, &aead_algo);
/* Add virtio crypto device to global table */
err = virtcrypto_devmgr_add_dev(vcrypto);
@ -358,6 +379,14 @@ static int virtcrypto_probe(struct virtio_device *vdev)
vcrypto->max_cipher_key_len = max_cipher_key_len;
vcrypto->max_auth_key_len = max_auth_key_len;
vcrypto->max_size = max_size;
vcrypto->crypto_services = crypto_services;
vcrypto->cipher_algo_l = cipher_algo_l;
vcrypto->cipher_algo_h = cipher_algo_h;
vcrypto->mac_algo_l = mac_algo_l;
vcrypto->mac_algo_h = mac_algo_h;
vcrypto->hash_algo = hash_algo;
vcrypto->aead_algo = aead_algo;
dev_info(&vdev->dev,
"max_queues: %u, max_cipher_key_len: %u, max_auth_key_len: %u, max_size 0x%llx\n",