Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit b551bac1 authored by Farhan Ali's avatar Farhan Ali Committed by Herbert Xu
Browse files

crypto: virtio - Read crypto services and algorithm masks 



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

Signed-off-by: default avatarFarhan Ali <alifm@linux.ibm.com>
Acked-by: default avatarGonglei <arei.gonglei@huawei.com>
Acked-by: default avatarChristian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent 0917b873

drivers/crypto/virtio/virtio_crypto_common.h

+14 −0
Original line number Diff line number Diff line
@@ -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 */

drivers/crypto/virtio/virtio_crypto_core.c

+29 −0
Original line number Diff line number Diff line
@@ -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",