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dcb: Use ifindex instead of ifname

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Use ifindex instead of ifname in the DCB app ring. This makes for a smaller
data structure and faster comparisons. It also avoids possible issues when
a net device is renamed.

Signed-off-by: Mark Rustad <mark.d.rustad@intel.com>
Signed-off-by: John Fastabend <john.r.fastabend@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Mark Rustad 2011-10-06 08:52:33 +00:00 committed by David S. Miller
parent e878d78b9a
commit e290ed8130
2 changed files with 13 additions and 13 deletions
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2
include/net/dcbnl.h
View File

@ -23,7 +23,7 @@
#include <linux/dcbnl.h>
struct dcb_app_type {
char name[IFNAMSIZ];
int ifindex;
struct dcb_app app;
struct list_head list;
};

24
net/dcb/dcbnl.c
View File

@ -1255,7 +1255,7 @@ static int dcbnl_ieee_fill(struct sk_buff *skb, struct net_device *netdev)
spin_lock(&dcb_lock);
list_for_each_entry(itr, &dcb_app_list, list) {
if (strncmp(itr->name, netdev->name, IFNAMSIZ) == 0) {
if (itr->ifindex == netdev->ifindex) {
err = nla_put(skb, DCB_ATTR_IEEE_APP, sizeof(itr->app),
&itr->app);
if (err) {
@ -1412,7 +1412,7 @@ static int dcbnl_cee_fill(struct sk_buff *skb, struct net_device *netdev)
goto dcb_unlock;
list_for_each_entry(itr, &dcb_app_list, list) {
if (strncmp(itr->name, netdev->name, IFNAMSIZ) == 0) {
if (itr->ifindex == netdev->ifindex) {
struct nlattr *app_nest = nla_nest_start(skb,
DCB_ATTR_APP);
if (!app_nest)
@ -2050,7 +2050,7 @@ u8 dcb_getapp(struct net_device *dev, struct dcb_app *app)
list_for_each_entry(itr, &dcb_app_list, list) {
if (itr->app.selector == app->selector &&
itr->app.protocol == app->protocol &&
(strncmp(itr->name, dev->name, IFNAMSIZ) == 0)) {
itr->ifindex == dev->ifindex) {
prio = itr->app.priority;
break;
}
@ -2073,7 +2073,7 @@ int dcb_setapp(struct net_device *dev, struct dcb_app *new)
struct dcb_app_type *itr;
struct dcb_app_type event;
memcpy(&event.name, dev->name, sizeof(event.name));
event.ifindex = dev->ifindex;
memcpy(&event.app, new, sizeof(event.app));
spin_lock(&dcb_lock);
@ -2081,7 +2081,7 @@ int dcb_setapp(struct net_device *dev, struct dcb_app *new)
list_for_each_entry(itr, &dcb_app_list, list) {
if (itr->app.selector == new->selector &&
itr->app.protocol == new->protocol &&
(strncmp(itr->name, dev->name, IFNAMSIZ) == 0)) {
itr->ifindex == dev->ifindex) {
if (new->priority)
itr->app.priority = new->priority;
else {
@ -2101,7 +2101,7 @@ int dcb_setapp(struct net_device *dev, struct dcb_app *new)
}
memcpy(&entry->app, new, sizeof(*new));
strncpy(entry->name, dev->name, IFNAMSIZ);
entry->ifindex = dev->ifindex;
list_add(&entry->list, &dcb_app_list);
}
out:
@ -2127,7 +2127,7 @@ u8 dcb_ieee_getapp_mask(struct net_device *dev, struct dcb_app *app)
list_for_each_entry(itr, &dcb_app_list, list) {
if (itr->app.selector == app->selector &&
itr->app.protocol == app->protocol &&
(strncmp(itr->name, dev->name, IFNAMSIZ) == 0)) {
itr->ifindex == dev->ifindex) {
prio |= 1 << itr->app.priority;
}
}
@ -2150,7 +2150,7 @@ int dcb_ieee_setapp(struct net_device *dev, struct dcb_app *new)
struct dcb_app_type event;
int err = 0;
memcpy(&event.name, dev->name, sizeof(event.name));
event.ifindex = dev->ifindex;
memcpy(&event.app, new, sizeof(event.app));
spin_lock(&dcb_lock);
@ -2159,7 +2159,7 @@ int dcb_ieee_setapp(struct net_device *dev, struct dcb_app *new)
if (itr->app.selector == new->selector &&
itr->app.protocol == new->protocol &&
itr->app.priority == new->priority &&
(strncmp(itr->name, dev->name, IFNAMSIZ) == 0)) {
itr->ifindex == dev->ifindex) {
err = -EEXIST;
goto out;
}
@ -2173,7 +2173,7 @@ int dcb_ieee_setapp(struct net_device *dev, struct dcb_app *new)
}
memcpy(&entry->app, new, sizeof(*new));
strncpy(entry->name, dev->name, IFNAMSIZ);
entry->ifindex = dev->ifindex;
list_add(&entry->list, &dcb_app_list);
out:
spin_unlock(&dcb_lock);
@ -2194,7 +2194,7 @@ int dcb_ieee_delapp(struct net_device *dev, struct dcb_app *del)
struct dcb_app_type event;
int err = -ENOENT;
memcpy(&event.name, dev->name, sizeof(event.name));
event.ifindex = dev->ifindex;
memcpy(&event.app, del, sizeof(event.app));
spin_lock(&dcb_lock);
@ -2203,7 +2203,7 @@ int dcb_ieee_delapp(struct net_device *dev, struct dcb_app *del)
if (itr->app.selector == del->selector &&
itr->app.protocol == del->protocol &&
itr->app.priority == del->priority &&
(strncmp(itr->name, dev->name, IFNAMSIZ) == 0)) {
itr->ifindex == dev->ifindex) {
list_del(&itr->list);
kfree(itr);
err = 0;