cryptodev: decouple from PCI device
[dpdk.git] / drivers / crypto / qat / rte_qat_cryptodev.c
1 /*-
2  *   BSD LICENSE
3  *
4  *   Copyright(c) 2015-2016 Intel Corporation. All rights reserved.
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13  *     * Redistributions in binary form must reproduce the above copyright
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15  *       the documentation and/or other materials provided with the
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18  *       contributors may be used to endorse or promote products derived
19  *       from this software without specific prior written permission.
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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
42 static 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
70 static 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
83 static int
84 crypto_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                 RTE_DEV_TO_PCI(cryptodev->device)->addr.bus,
92                 RTE_DEV_TO_PCI(cryptodev->device)->addr.devid,
93                 RTE_DEV_TO_PCI(cryptodev->device)->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                         RTE_CRYPTODEV_FF_MBUF_SCATTER_GATHER;
105
106         internals = cryptodev->data->dev_private;
107         internals->max_nb_sessions = RTE_QAT_PMD_MAX_NB_SESSIONS;
108
109         /*
110          * For secondary processes, we don't initialise any further as primary
111          * has already done this work. Only check we don't need a different
112          * RX function
113          */
114         if (rte_eal_process_type() != RTE_PROC_PRIMARY) {
115                 PMD_DRV_LOG(DEBUG, "Device already initialised by primary process");
116                 return 0;
117         }
118
119         return 0;
120 }
121
122 static struct rte_cryptodev_driver rte_qat_pmd = {
123         .pci_drv = {
124                 .id_table = pci_id_qat_map,
125                 .drv_flags = RTE_PCI_DRV_NEED_MAPPING,
126                 .probe = rte_cryptodev_pci_probe,
127                 .remove = rte_cryptodev_pci_remove,
128         },
129         .cryptodev_init = crypto_qat_dev_init,
130         .dev_private_size = sizeof(struct qat_pmd_private),
131 };
132
133 RTE_PMD_REGISTER_PCI(CRYPTODEV_NAME_QAT_SYM_PMD, rte_qat_pmd.pci_drv);
134 RTE_PMD_REGISTER_PCI_TABLE(CRYPTODEV_NAME_QAT_SYM_PMD, pci_id_qat_map);
135