1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
|
/* SPDX-License-Identifier: BSD-3-Clause
* Copyright(c) 2017-2018 Intel Corporation
*/
#ifndef _VHOST_CRYPTO_H_
#define _VHOST_CRYPTO_H_
#define VHOST_CRYPTO_MBUF_POOL_SIZE (8192)
#define VHOST_CRYPTO_MAX_BURST_SIZE (64)
#define VHOST_CRYPTO_SESSION_MAP_ENTRIES (1024) /**< Max nb sessions */
/** max nb virtual queues in a burst for finalizing*/
#define VIRTIO_CRYPTO_MAX_NUM_BURST_VQS (64)
enum rte_vhost_crypto_zero_copy {
RTE_VHOST_CRYPTO_ZERO_COPY_DISABLE = 0,
RTE_VHOST_CRYPTO_ZERO_COPY_ENABLE = 1,
RTE_VHOST_CRYPTO_MAX_ZERO_COPY_OPTIONS
};
/**
* Create Vhost-crypto instance
*
* @param vid
* The identifier of the vhost device.
* @param cryptodev_id
* The identifier of DPDK Cryptodev, the same cryptodev_id can be assigned to
* multiple Vhost-crypto devices.
* @param sess_pool
* The pointer to the created cryptodev session pool with the private data size
* matches the target DPDK Cryptodev.
* @param socket_id
* NUMA Socket ID to allocate resources on. *
* @return
* 0 if the Vhost Crypto Instance is created successfully.
* Negative integer if otherwise
*/
int __rte_experimental
rte_vhost_crypto_create(int vid, uint8_t cryptodev_id,
struct rte_mempool *sess_pool, int socket_id);
/**
* Free the Vhost-crypto instance
*
* @param vid
* The identifier of the vhost device.
* @return
* 0 if the Vhost Crypto Instance is created successfully.
* Negative integer if otherwise.
*/
int __rte_experimental
rte_vhost_crypto_free(int vid);
/**
* Enable or disable zero copy feature
*
* @param vid
* The identifier of the vhost device.
* @param option
* Flag of zero copy feature.
* @return
* 0 if completed successfully.
* Negative integer if otherwise.
*/
int __rte_experimental
rte_vhost_crypto_set_zero_copy(int vid, enum rte_vhost_crypto_zero_copy option);
/**
* Fetch a number of vring descriptors from virt-queue and translate to DPDK
* crypto operations. After this function is executed, the user can enqueue
* the processed ops to the target cryptodev.
*
* @param vid
* The identifier of the vhost device.
* @param qid
* Virtio queue index.
* @param ops
* The address of an array of pointers to *rte_crypto_op* structures that must
* be large enough to store *nb_ops* pointers in it.
* @param nb_ops
* The maximum number of operations to be fetched and translated.
* @return
* The number of fetched and processed vhost crypto request operations.
*/
uint16_t __rte_experimental
rte_vhost_crypto_fetch_requests(int vid, uint32_t qid,
struct rte_crypto_op **ops, uint16_t nb_ops);
/**
* Finalize the dequeued crypto ops. After the translated crypto ops are
* dequeued from the cryptodev, this function shall be called to write the
* processed data back to the vring descriptor (if no-copy is turned off).
*
* @param ops
* The address of an array of *rte_crypto_op* structure that was dequeued
* from cryptodev.
* @param nb_ops
* The number of operations contained in the array.
* @callfds
* The callfd number(s) contained in this burst, this shall be an array with
* no less than VIRTIO_CRYPTO_MAX_NUM_BURST_VQS elements.
* @nb_callfds
* The number of call_fd numbers exist in the callfds.
* @return
* The number of ops processed.
*/
uint16_t __rte_experimental
rte_vhost_crypto_finalize_requests(struct rte_crypto_op **ops,
uint16_t nb_ops, int *callfds, uint16_t *nb_callfds);
#endif /**< _VHOST_CRYPTO_H_ */
|
