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/*
* QEMU Cryptodev backend for QEMU cipher APIs
*
* Copyright (c) 2016 HUAWEI TECHNOLOGIES CO., LTD.
*
* Authors:
* Gonglei <arei.gonglei@huawei.com>
* Jay Zhou <jianjay.zhou@huawei.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, see <http://www.gnu.org/licenses/>.
*
*/
#include "qemu/osdep.h"
#include "sysemu/cryptodev-vhost.h"
#ifdef CONFIG_VHOST_CRYPTO
uint64_t
cryptodev_vhost_get_max_queues(
CryptoDevBackendVhost *crypto)
{
return crypto->dev.max_queues;
}
void cryptodev_vhost_cleanup(CryptoDevBackendVhost *crypto)
{
vhost_dev_cleanup(&crypto->dev);
g_free(crypto);
}
struct CryptoDevBackendVhost *
cryptodev_vhost_init(
CryptoDevBackendVhostOptions *options)
{
int r;
CryptoDevBackendVhost *crypto;
crypto = g_new(CryptoDevBackendVhost, 1);
crypto->dev.max_queues = 1;
crypto->dev.nvqs = 1;
crypto->dev.vqs = crypto->vqs;
crypto->cc = options->cc;
crypto->dev.protocol_features = 0;
crypto->backend = -1;
/* vhost-user needs vq_index to initiate a specific queue pair */
crypto->dev.vq_index = crypto->cc->queue_index * crypto->dev.nvqs;
r = vhost_dev_init(&crypto->dev, options->opaque, options->backend_type, 0);
if (r < 0) {
goto fail;
}
return crypto;
fail:
g_free(crypto);
return NULL;
}
#else
uint64_t
cryptodev_vhost_get_max_queues(CryptoDevBackendVhost *crypto)
{
return 0;
}
void cryptodev_vhost_cleanup(CryptoDevBackendVhost *crypto)
{
}
struct CryptoDevBackendVhost *
cryptodev_vhost_init(CryptoDevBackendVhostOptions *options)
{
return NULL;
}
#endif
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