2 * Copyright (c) 2015 Mellanox Technologies, Ltd.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice unmodified, this list of conditions, and the following
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD$");
30 #include <sys/param.h>
31 #include <sys/systm.h>
32 #include <sys/malloc.h>
33 #include <sys/kernel.h>
34 #include <sys/sysctl.h>
36 #include <sys/mutex.h>
38 #include <sys/fcntl.h>
40 #include <sys/filio.h>
41 #include <sys/rwlock.h>
46 #include <machine/stdarg.h>
47 #include <machine/pmap.h>
49 #include <linux/kobject.h>
50 #include <linux/device.h>
51 #include <linux/slab.h>
52 #include <linux/module.h>
53 #include <linux/cdev.h>
54 #include <linux/file.h>
55 #include <linux/sysfs.h>
58 #include <linux/vmalloc.h>
59 #include <linux/pci.h>
61 static device_probe_t linux_pci_probe;
62 static device_attach_t linux_pci_attach;
63 static device_detach_t linux_pci_detach;
64 static device_suspend_t linux_pci_suspend;
65 static device_resume_t linux_pci_resume;
66 static device_shutdown_t linux_pci_shutdown;
68 static device_method_t pci_methods[] = {
69 DEVMETHOD(device_probe, linux_pci_probe),
70 DEVMETHOD(device_attach, linux_pci_attach),
71 DEVMETHOD(device_detach, linux_pci_detach),
72 DEVMETHOD(device_suspend, linux_pci_suspend),
73 DEVMETHOD(device_resume, linux_pci_resume),
74 DEVMETHOD(device_shutdown, linux_pci_shutdown),
78 static struct pci_driver *
79 linux_pci_find(device_t dev, const struct pci_device_id **idp)
81 const struct pci_device_id *id;
82 struct pci_driver *pdrv;
86 vendor = pci_get_vendor(dev);
87 device = pci_get_device(dev);
90 list_for_each_entry(pdrv, &pci_drivers, links) {
91 for (id = pdrv->id_table; id->vendor != 0; id++) {
92 if (vendor == id->vendor && device == id->device) {
94 spin_unlock(&pci_lock);
99 spin_unlock(&pci_lock);
104 linux_pci_probe(device_t dev)
106 const struct pci_device_id *id;
107 struct pci_driver *pdrv;
109 if ((pdrv = linux_pci_find(dev, &id)) == NULL)
111 if (device_get_driver(dev) != &pdrv->driver)
113 device_set_desc(dev, pdrv->name);
118 linux_pci_attach(device_t dev)
120 struct resource_list_entry *rle;
121 struct pci_dev *pdev;
122 struct pci_driver *pdrv;
123 const struct pci_device_id *id;
126 pdrv = linux_pci_find(dev, &id);
127 pdev = device_get_softc(dev);
128 pdev->dev.parent = &linux_root_device;
129 pdev->dev.bsddev = dev;
130 INIT_LIST_HEAD(&pdev->dev.irqents);
131 pdev->device = id->device;
132 pdev->vendor = id->vendor;
133 pdev->dev.dma_mask = &pdev->dma_mask;
135 kobject_init(&pdev->dev.kobj, &linux_dev_ktype);
136 kobject_set_name(&pdev->dev.kobj, device_get_nameunit(dev));
137 kobject_add(&pdev->dev.kobj, &linux_root_device.kobj,
138 kobject_name(&pdev->dev.kobj));
139 rle = _pci_get_rle(pdev, SYS_RES_IRQ, 0);
141 pdev->dev.irq = rle->start;
144 pdev->irq = pdev->dev.irq;
146 spin_lock(&pci_lock);
147 list_add(&pdev->links, &pci_devices);
148 spin_unlock(&pci_lock);
149 error = pdrv->probe(pdev, id);
152 spin_lock(&pci_lock);
153 list_del(&pdev->links);
154 spin_unlock(&pci_lock);
155 put_device(&pdev->dev);
162 linux_pci_detach(device_t dev)
164 struct pci_dev *pdev;
166 pdev = device_get_softc(dev);
168 pdev->pdrv->remove(pdev);
170 spin_lock(&pci_lock);
171 list_del(&pdev->links);
172 spin_unlock(&pci_lock);
173 put_device(&pdev->dev);
179 linux_pci_suspend(device_t dev)
181 struct pm_message pm = { };
182 struct pci_dev *pdev;
185 pdev = device_get_softc(dev);
186 if (pdev->pdrv->suspend != NULL)
187 err = -pdev->pdrv->suspend(pdev, pm);
194 linux_pci_resume(device_t dev)
196 struct pci_dev *pdev;
199 pdev = device_get_softc(dev);
200 if (pdev->pdrv->resume != NULL)
201 err = -pdev->pdrv->resume(pdev);
208 linux_pci_shutdown(device_t dev)
210 struct pci_dev *pdev;
212 pdev = device_get_softc(dev);
213 if (pdev->pdrv->shutdown != NULL)
214 pdev->pdrv->shutdown(pdev);
219 pci_register_driver(struct pci_driver *pdrv)
224 bus = devclass_find("pci");
226 spin_lock(&pci_lock);
227 list_add(&pdrv->links, &pci_drivers);
228 spin_unlock(&pci_lock);
229 pdrv->driver.name = pdrv->name;
230 pdrv->driver.methods = pci_methods;
231 pdrv->driver.size = sizeof(struct pci_dev);
234 error = devclass_add_driver(bus, &pdrv->driver, BUS_PASS_DEFAULT,
242 pci_unregister_driver(struct pci_driver *pdrv)
246 bus = devclass_find("pci");
248 list_del(&pdrv->links);
251 devclass_delete_driver(bus, &pdrv->driver);