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RDMA/core: Introduce and use ib_setup_port_attrs() 

Refactor code for device and port sysfs attributes for reuse.

While at it, rename counter part free function to ib_free_port_attrs.

Also attribute setup sequence is:
(a) port specific init.
(b) device stats alloc/init.

So for cleanup, follow reverse sequence:
(a) device stats dealloc
(b) port specific cleanup

Signed-off-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
This commit is contained in:
Parav Pandit 2019-02-13 19:23:04 +02:00 committed by Jason Gunthorpe
parent e155755e53
commit 5767198a14
1 changed files with 35 additions and 29 deletions
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64
drivers/infiniband/core/sysfs.c
View File

@ -1279,17 +1279,17 @@ static const struct attribute_group dev_attr_group = {
.attrs = ib_dev_attrs,
};
static void free_port_list_attributes(struct ib_device *device)
static void ib_free_port_attrs(struct ib_device *device)
{
struct kobject *p, *t;
list_for_each_entry_safe(p, t, &device->port_list, entry) {
struct ib_port *port = container_of(p, struct ib_port, kobj);
list_del(&p->entry);
if (port->hw_stats) {
kfree(port->hw_stats);
if (port->hw_stats_ag)
free_hsag(&port->kobj, port->hw_stats_ag);
}
kfree(port->hw_stats);
if (port->pma_table)
sysfs_remove_group(p, port->pma_table);
@ -1306,24 +1306,14 @@ static void free_port_list_attributes(struct ib_device *device)
kobject_put(device->ports_kobj);
}
int ib_device_register_sysfs(struct ib_device *device)
static int ib_setup_port_attrs(struct ib_device *device)
{
struct device *class_dev = &device->dev;
int ret;
int i;
device->groups[0] = &dev_attr_group;
class_dev->groups = device->groups;
ret = device_add(class_dev);
if (ret)
goto err;
device->ports_kobj = kobject_create_and_add("ports", &class_dev->kobj);
if (!device->ports_kobj) {
ret = -ENOMEM;
goto err_put;
}
device->ports_kobj = kobject_create_and_add("ports", &device->dev.kobj);
if (!device->ports_kobj)
return -ENOMEM;
if (rdma_cap_ib_switch(device)) {
ret = add_port(device, 0);
@ -1337,26 +1327,42 @@ int ib_device_register_sysfs(struct ib_device *device)
}
}
return 0;
err_put:
ib_free_port_attrs(device);
return ret;
}
int ib_device_register_sysfs(struct ib_device *device)
{
int ret;
device->groups[0] = &dev_attr_group;
device->dev.groups = device->groups;
ret = device_add(&device->dev);
if (ret)
return ret;
ret = ib_setup_port_attrs(device);
if (ret) {
device_del(&device->dev);
return ret;
}
if (device->ops.alloc_hw_stats)
setup_hw_stats(device, NULL, 0);
return 0;
err_put:
free_port_list_attributes(device);
device_del(class_dev);
err:
return ret;
}
void ib_device_unregister_sysfs(struct ib_device *device)
{
free_port_list_attributes(device);
if (device->hw_stats) {
kfree(device->hw_stats);
if (device->hw_stats_ag)
free_hsag(&device->dev.kobj, device->hw_stats_ag);
}
kfree(device->hw_stats);
ib_free_port_attrs(device);
/* Balances with device_add */
device_del(&device->dev);
}