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Commit 699a4114 authored by Stephen Hemminger's avatar Stephen Hemminger Committed by David S. Miller
Browse files

[NET]: Allow controlling NAPI device weight with sysfs 



Simple interface to allow changing network device scheduling weight
with sysfs. Please consider this for 2.6.12, since risk/impact is small.

Signed-off-by: default avatarStephen Hemminger <shemminger@osdl.org>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 8181b8c1

net/core/net-sysfs.c

+17 −0
Original line number Diff line number Diff line
@@ -185,6 +185,22 @@ static ssize_t store_tx_queue_len(struct class_device *dev, const char *buf, siz 
static CLASS_DEVICE_ATTR(tx_queue_len, S_IRUGO | S_IWUSR, show_tx_queue_len, 

			 store_tx_queue_len);



NETDEVICE_SHOW(weight, fmt_dec);



static int change_weight(struct net_device *net, unsigned long new_weight)

{

	net->weight = new_weight;

	return 0;

}



static ssize_t store_weight(struct class_device *dev, const char *buf, size_t len)

{

	return netdev_store(dev, buf, len, change_weight);

}



static CLASS_DEVICE_ATTR(weight, S_IRUGO | S_IWUSR, show_weight, 

			 store_weight);





static struct class_device_attribute *net_class_attributes[] = {

	&class_device_attr_ifindex,
@@ -194,6 +210,7 @@ static struct class_device_attribute *net_class_attributes[] = { 
	&class_device_attr_features,

	&class_device_attr_mtu,

	&class_device_attr_flags,

	&class_device_attr_weight,

	&class_device_attr_type,

	&class_device_attr_address,

	&class_device_attr_broadcast,