xref: /spdk/lib/env_dpdk/pci_virtio.c (revision 8fb123553a690dca615baec02990aa0dc2c655d0)
1 /*-
2  *   BSD LICENSE
3  *
4  *   Copyright (c) Intel Corporation.
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 "env_internal.h"
35 
36 #include "spdk/pci_ids.h"
37 
38 static struct rte_pci_id virtio_pci_driver_id[] = {
39 	{ RTE_PCI_DEVICE(SPDK_PCI_VID_VIRTIO, PCI_DEVICE_ID_VIRTIO_SCSI_MODERN) },
40 	{ RTE_PCI_DEVICE(SPDK_PCI_VID_VIRTIO, PCI_DEVICE_ID_VIRTIO_BLK_MODERN) },
41 	{ .vendor_id = 0, /* sentinel */ },
42 };
43 
44 static struct spdk_pci_enum_ctx g_virtio_pci_drv = {
45 	.driver = {
46 		.drv_flags	= RTE_PCI_DRV_NEED_MAPPING
47 #if RTE_VERSION >= RTE_VERSION_NUM(18, 8, 0, 0)
48 		| RTE_PCI_DRV_WC_ACTIVATE
49 #endif
50 		,
51 		.id_table	= virtio_pci_driver_id,
52 #if RTE_VERSION >= RTE_VERSION_NUM(16, 11, 0, 0)
53 		.probe		= spdk_pci_device_init,
54 		.remove		= spdk_pci_device_fini,
55 		.driver.name	= "spdk_virtio",
56 #else
57 		.devinit	= spdk_pci_device_init,
58 		.devuninit	= spdk_pci_device_fini,
59 		.name		= "spdk_virtio",
60 #endif
61 	},
62 
63 	.cb_fn = NULL,
64 	.cb_arg = NULL,
65 	.mtx = PTHREAD_MUTEX_INITIALIZER,
66 	.is_registered = false,
67 };
68 
69 int
70 spdk_pci_virtio_device_attach(spdk_pci_enum_cb enum_cb,
71 			      void *enum_ctx, struct spdk_pci_addr *pci_address)
72 {
73 	return spdk_pci_device_attach(&g_virtio_pci_drv, enum_cb, enum_ctx, pci_address);
74 }
75 
76 int
77 spdk_pci_virtio_enumerate(spdk_pci_enum_cb enum_cb, void *enum_ctx)
78 {
79 	return spdk_pci_enumerate(&g_virtio_pci_drv, enum_cb, enum_ctx);
80 }
81