struct ib_ucm_device {
int devnum;
- struct cdev dev;
- struct class_device class_dev;
+ struct cdev cdev;
+ struct device dev;
struct ib_device *ib_dev;
};
IB_UCM_MAX_DEVICES = 32
};
+/* ib_cm and ib_user_cm modules share /sys/class/infiniband_cm */
+extern struct class cm_class;
+
#define IB_UCM_BASE_DEV MKDEV(IB_UCM_MAJOR, IB_UCM_BASE_MINOR)
static void ib_ucm_add_one(struct ib_device *device);
filp->private_data = file;
file->filp = filp;
- file->device = container_of(inode->i_cdev, struct ib_ucm_device, dev);
+ file->device = container_of(inode->i_cdev, struct ib_ucm_device, cdev);
return 0;
}
return 0;
}
-static void ib_ucm_release_class_dev(struct class_device *class_dev)
+static void ib_ucm_release_dev(struct device *dev)
{
- struct ib_ucm_device *dev;
+ struct ib_ucm_device *ucm_dev;
- dev = container_of(class_dev, struct ib_ucm_device, class_dev);
- cdev_del(&dev->dev);
- clear_bit(dev->devnum, dev_map);
- kfree(dev);
+ ucm_dev = container_of(dev, struct ib_ucm_device, dev);
+ cdev_del(&ucm_dev->cdev);
+ clear_bit(ucm_dev->devnum, dev_map);
+ kfree(ucm_dev);
}
static const struct file_operations ucm_fops = {
.poll = ib_ucm_poll,
};
-static struct class ucm_class = {
- .name = "infiniband_cm",
- .release = ib_ucm_release_class_dev
-};
-
-static ssize_t show_ibdev(struct class_device *class_dev, char *buf)
+static ssize_t show_ibdev(struct device *dev, struct device_attribute *attr,
+ char *buf)
{
- struct ib_ucm_device *dev;
+ struct ib_ucm_device *ucm_dev;
- dev = container_of(class_dev, struct ib_ucm_device, class_dev);
- return sprintf(buf, "%s\n", dev->ib_dev->name);
+ ucm_dev = container_of(dev, struct ib_ucm_device, dev);
+ return sprintf(buf, "%s\n", ucm_dev->ib_dev->name);
}
-static CLASS_DEVICE_ATTR(ibdev, S_IRUGO, show_ibdev, NULL);
+static DEVICE_ATTR(ibdev, S_IRUGO, show_ibdev, NULL);
static void ib_ucm_add_one(struct ib_device *device)
{
set_bit(ucm_dev->devnum, dev_map);
- cdev_init(&ucm_dev->dev, &ucm_fops);
- ucm_dev->dev.owner = THIS_MODULE;
- kobject_set_name(&ucm_dev->dev.kobj, "ucm%d", ucm_dev->devnum);
- if (cdev_add(&ucm_dev->dev, IB_UCM_BASE_DEV + ucm_dev->devnum, 1))
+ cdev_init(&ucm_dev->cdev, &ucm_fops);
+ ucm_dev->cdev.owner = THIS_MODULE;
+ kobject_set_name(&ucm_dev->cdev.kobj, "ucm%d", ucm_dev->devnum);
+ if (cdev_add(&ucm_dev->cdev, IB_UCM_BASE_DEV + ucm_dev->devnum, 1))
goto err;
- ucm_dev->class_dev.class = &ucm_class;
- ucm_dev->class_dev.dev = device->dma_device;
- ucm_dev->class_dev.devt = ucm_dev->dev.dev;
- snprintf(ucm_dev->class_dev.class_id, BUS_ID_SIZE, "ucm%d",
+ ucm_dev->dev.class = &cm_class;
+ ucm_dev->dev.parent = device->dma_device;
+ ucm_dev->dev.devt = ucm_dev->cdev.dev;
+ ucm_dev->dev.release = ib_ucm_release_dev;
+ snprintf(ucm_dev->dev.bus_id, BUS_ID_SIZE, "ucm%d",
ucm_dev->devnum);
- if (class_device_register(&ucm_dev->class_dev))
+ if (device_register(&ucm_dev->dev))
goto err_cdev;
- if (class_device_create_file(&ucm_dev->class_dev,
- &class_device_attr_ibdev))
- goto err_class;
+ if (device_create_file(&ucm_dev->dev, &dev_attr_ibdev))
+ goto err_dev;
ib_set_client_data(device, &ucm_client, ucm_dev);
return;
-err_class:
- class_device_unregister(&ucm_dev->class_dev);
+err_dev:
+ device_unregister(&ucm_dev->dev);
err_cdev:
- cdev_del(&ucm_dev->dev);
+ cdev_del(&ucm_dev->cdev);
clear_bit(ucm_dev->devnum, dev_map);
err:
kfree(ucm_dev);
if (!ucm_dev)
return;
- class_device_unregister(&ucm_dev->class_dev);
+ device_unregister(&ucm_dev->dev);
}
static ssize_t show_abi_version(struct class *class, char *buf)
"infiniband_cm");
if (ret) {
printk(KERN_ERR "ucm: couldn't register device number\n");
- goto err;
- }
-
- ret = class_register(&ucm_class);
- if (ret) {
- printk(KERN_ERR "ucm: couldn't create class infiniband_cm\n");
- goto err_chrdev;
+ goto error1;
}
- ret = class_create_file(&ucm_class, &class_attr_abi_version);
+ ret = class_create_file(&cm_class, &class_attr_abi_version);
if (ret) {
printk(KERN_ERR "ucm: couldn't create abi_version attribute\n");
- goto err_class;
+ goto error2;
}
ret = ib_register_client(&ucm_client);
if (ret) {
printk(KERN_ERR "ucm: couldn't register client\n");
- goto err_class;
+ goto error3;
}
return 0;
-err_class:
- class_unregister(&ucm_class);
-err_chrdev:
+error3:
+ class_remove_file(&cm_class, &class_attr_abi_version);
+error2:
unregister_chrdev_region(IB_UCM_BASE_DEV, IB_UCM_MAX_DEVICES);
-err:
+error1:
return ret;
}
static void __exit ib_ucm_cleanup(void)
{
ib_unregister_client(&ucm_client);
- class_unregister(&ucm_class);
+ class_remove_file(&cm_class, &class_attr_abi_version);
unregister_chrdev_region(IB_UCM_BASE_DEV, IB_UCM_MAX_DEVICES);
idr_destroy(&ctx_id_table);
}