[PATCH v3 1/2] crypto/virtio-crypto: Read crypto services and algorithm masks
From: Farhan Ali <alifm@linux.ibm.com>
Date: 2018-06-19 15:42:07
Also in:
kvm, lkml, qemu-devel
Subsystem:
crypto api, the rest, virtio core, virtio crypto driver · Maintainers:
Herbert Xu, "David S. Miller", Linus Torvalds, "Michael S. Tsirkin", Jason Wang, Gonglei
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 <redacted> --- drivers/crypto/virtio/virtio_crypto_common.h | 14 ++++++++++++++ drivers/crypto/virtio/virtio_crypto_core.c | 29 ++++++++++++++++++++++++++++ 2 files changed, 43 insertions(+)
diff --git a/drivers/crypto/virtio/virtio_crypto_common.h b/drivers/crypto/virtio/virtio_crypto_common.h
index 66501a5..931a3bd 100644
--- a/drivers/crypto/virtio/virtio_crypto_common.h
+++ b/drivers/crypto/virtio/virtio_crypto_common.h@@ -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 */
diff --git a/drivers/crypto/virtio/virtio_crypto_core.c b/drivers/crypto/virtio/virtio_crypto_core.c
index 8332698..8f745f2 100644
--- a/drivers/crypto/virtio/virtio_crypto_core.c
+++ b/drivers/crypto/virtio/virtio_crypto_core.c@@ -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",
--
2.7.4