rte_qat_cryptodev.c revision 3d9b7210
1/*-
2 *   BSD LICENSE
3 *
4 *   Copyright(c) 2015-2016 Intel Corporation. All rights reserved.
5 *   All rights reserved.
6 *
7 *   Redistribution and use in source and binary forms, with or without
8 *   modification, are permitted provided that the following conditions
9 *   are met:
10 *
11 *     * Redistributions of source code must retain the above copyright
12 *       notice, this list of conditions and the following disclaimer.
13 *     * Redistributions in binary form must reproduce the above copyright
14 *       notice, this list of conditions and the following disclaimer in
15 *       the documentation and/or other materials provided with the
16 *       distribution.
17 *     * Neither the name of Intel Corporation nor the names of its
18 *       contributors may be used to endorse or promote products derived
19 *       from this software without specific prior written permission.
20 *
21 *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
22 *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
23 *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
24 *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
25 *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
26 *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
27 *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
28 *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
29 *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
30 *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
31 *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32 */
33
34#include <rte_common.h>
35#include <rte_dev.h>
36#include <rte_malloc.h>
37#include <rte_cryptodev_pmd.h>
38
39#include "qat_crypto.h"
40#include "qat_logs.h"
41
42static struct rte_cryptodev_ops crypto_qat_ops = {
43
44		/* Device related operations */
45		.dev_configure		= qat_dev_config,
46		.dev_start		= qat_dev_start,
47		.dev_stop		= qat_dev_stop,
48		.dev_close		= qat_dev_close,
49		.dev_infos_get		= qat_dev_info_get,
50
51		.stats_get		= qat_crypto_sym_stats_get,
52		.stats_reset		= qat_crypto_sym_stats_reset,
53		.queue_pair_setup	= qat_crypto_sym_qp_setup,
54		.queue_pair_release	= qat_crypto_sym_qp_release,
55		.queue_pair_start	= NULL,
56		.queue_pair_stop	= NULL,
57		.queue_pair_count	= NULL,
58
59		/* Crypto related operations */
60		.session_get_size	= qat_crypto_sym_get_session_private_size,
61		.session_configure	= qat_crypto_sym_configure_session,
62		.session_initialize	= qat_crypto_sym_session_init,
63		.session_clear		= qat_crypto_sym_clear_session
64};
65
66/*
67 * The set of PCI devices this driver supports
68 */
69
70static struct rte_pci_id pci_id_qat_map[] = {
71		{
72			RTE_PCI_DEVICE(0x8086, 0x0443),
73		},
74		{
75			RTE_PCI_DEVICE(0x8086, 0x37c9),
76		},
77		{
78			RTE_PCI_DEVICE(0x8086, 0x19e3),
79		},
80		{.device_id = 0},
81};
82
83static int
84crypto_qat_dev_init(__attribute__((unused)) struct rte_cryptodev_driver *crypto_drv,
85			struct rte_cryptodev *cryptodev)
86{
87	struct qat_pmd_private *internals;
88
89	PMD_INIT_FUNC_TRACE();
90	PMD_DRV_LOG(DEBUG, "Found crypto device at %02x:%02x.%x",
91		cryptodev->pci_dev->addr.bus,
92		cryptodev->pci_dev->addr.devid,
93		cryptodev->pci_dev->addr.function);
94
95	cryptodev->dev_type = RTE_CRYPTODEV_QAT_SYM_PMD;
96	cryptodev->dev_ops = &crypto_qat_ops;
97
98	cryptodev->enqueue_burst = qat_pmd_enqueue_op_burst;
99	cryptodev->dequeue_burst = qat_pmd_dequeue_op_burst;
100
101	cryptodev->feature_flags = RTE_CRYPTODEV_FF_SYMMETRIC_CRYPTO |
102			RTE_CRYPTODEV_FF_HW_ACCELERATED |
103			RTE_CRYPTODEV_FF_SYM_OPERATION_CHAINING;
104
105	internals = cryptodev->data->dev_private;
106	internals->max_nb_sessions = RTE_QAT_PMD_MAX_NB_SESSIONS;
107
108	/*
109	 * For secondary processes, we don't initialise any further as primary
110	 * has already done this work. Only check we don't need a different
111	 * RX function
112	 */
113	if (rte_eal_process_type() != RTE_PROC_PRIMARY) {
114		PMD_DRV_LOG(DEBUG, "Device already initialised by primary process");
115		return 0;
116	}
117
118	return 0;
119}
120
121static struct rte_cryptodev_driver rte_qat_pmd = {
122	.pci_drv = {
123		.id_table = pci_id_qat_map,
124		.drv_flags = RTE_PCI_DRV_NEED_MAPPING,
125		.probe = rte_cryptodev_pci_probe,
126		.remove = rte_cryptodev_pci_remove,
127	},
128	.cryptodev_init = crypto_qat_dev_init,
129	.dev_private_size = sizeof(struct qat_pmd_private),
130};
131
132RTE_PMD_REGISTER_PCI(CRYPTODEV_NAME_QAT_SYM_PMD, rte_qat_pmd.pci_drv);
133RTE_PMD_REGISTER_PCI_TABLE(CRYPTODEV_NAME_QAT_SYM_PMD, pci_id_qat_map);
134
135