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Commit 07a5c172 authored by Michael Ellerman's avatar Michael Ellerman Committed by Jeff Garzik
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[PATCH] iseries_veth: Add sysfs support for port structs 



Also to aid debugging, add sysfs support for iseries_veth's port structures.

Signed-off-by: default avatarMichael Ellerman <michael@ellerman.id.au>
Signed-off-by: default avatarJeff Garzik <jgarzik@pobox.com>
parent 76812d81

drivers/net/iseries_veth.c

+67 −0
Original line number Diff line number Diff line
@@ -167,6 +167,8 @@ struct veth_port { 
	int promiscuous;

	int num_mcast;

	u64 mcast_addr[VETH_MAX_MCAST];



	struct kobject kobject;

};



static HvLpIndex this_lp;
@@ -350,6 +352,62 @@ static struct kobj_type veth_lpar_connection_ktype = { 
	.default_attrs	= veth_cnx_default_attrs

};



struct veth_port_attribute {

	struct attribute attr;

	ssize_t (*show)(struct veth_port *, char *buf);

	ssize_t (*store)(struct veth_port *, const char *buf);

};



static ssize_t veth_port_attribute_show(struct kobject *kobj,

		struct attribute *attr, char *buf)

{

	struct veth_port_attribute *port_attr;

	struct veth_port *port;



	port_attr = container_of(attr, struct veth_port_attribute, attr);

	port = container_of(kobj, struct veth_port, kobject);



	if (!port_attr->show)

		return -EIO;



	return port_attr->show(port, buf);

}



#define CUSTOM_PORT_ATTR(_name, _format, _expression)			\

static ssize_t _name##_show(struct veth_port *port, char *buf)		\

{									\

	return sprintf(buf, _format, _expression);			\

}									\

struct veth_port_attribute veth_port_attr_##_name = __ATTR_RO(_name)



#define SIMPLE_PORT_ATTR(_name)	\

	CUSTOM_PORT_ATTR(_name, "%lu\n", (unsigned long)port->_name)



SIMPLE_PORT_ATTR(promiscuous);

SIMPLE_PORT_ATTR(num_mcast);

CUSTOM_PORT_ATTR(lpar_map, "0x%X\n", port->lpar_map);

CUSTOM_PORT_ATTR(stopped_map, "0x%X\n", port->stopped_map);

CUSTOM_PORT_ATTR(mac_addr, "0x%lX\n", port->mac_addr);



#define GET_PORT_ATTR(_name)	(&veth_port_attr_##_name.attr)

static struct attribute *veth_port_default_attrs[] = {

	GET_PORT_ATTR(mac_addr),

	GET_PORT_ATTR(lpar_map),

	GET_PORT_ATTR(stopped_map),

	GET_PORT_ATTR(promiscuous),

	GET_PORT_ATTR(num_mcast),

	NULL

};



static struct sysfs_ops veth_port_sysfs_ops = {

	.show = veth_port_attribute_show

};



static struct kobj_type veth_port_ktype = {

	.sysfs_ops	= &veth_port_sysfs_ops,

	.default_attrs	= veth_port_default_attrs

};



/*

 * LPAR connection code

 */
@@ -992,6 +1050,13 @@ static struct net_device * __init veth_probe_one(int vlan, struct device *vdev) 
		return NULL;

	}



	kobject_init(&port->kobject);

	port->kobject.parent = &dev->class_dev.kobj;

	port->kobject.ktype  = &veth_port_ktype;

	kobject_set_name(&port->kobject, "veth_port");

	if (0 != kobject_add(&port->kobject))

		veth_error("Failed adding port for %s to sysfs.\n", dev->name);



	veth_info("%s attached to iSeries vlan %d (LPAR map = 0x%.4X)\n",

			dev->name, vlan, port->lpar_map);
@@ -1486,6 +1551,8 @@ static int veth_remove(struct vio_dev *vdev) 
	}



	veth_dev[vdev->unit_address] = NULL;

	kobject_del(&port->kobject);

	kobject_put(&port->kobject);

	unregister_netdev(dev);

	free_netdev(dev);