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Message-ID: <20111006185233.2781.80310.stgit@jf-dev1-dcblab>
Date: Thu, 06 Oct 2011 11:52:33 -0700
From: John Fastabend <john.r.fastabend@...el.com>
To: davem@...emloft.net
Cc: john.r.fastabend@...el.com, netdev@...r.kernel.org,
gospo@...hat.com
Subject: [net-next PATCH 1/3] dcb: Use ifindex instead of ifname
From: Mark Rustad <mark.d.rustad@...el.com>
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@...el.com>
Signed-off-by: John Fastabend <john.r.fastabend@...el.com>
---
include/net/dcbnl.h | 2 +-
net/dcb/dcbnl.c | 24 ++++++++++++------------
2 files changed, 13 insertions(+), 13 deletions(-)
diff --git a/include/net/dcbnl.h b/include/net/dcbnl.h
index f5aa399..263aa3a 100644
--- a/include/net/dcbnl.h
+++ b/include/net/dcbnl.h
@@ -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;
};
diff --git a/net/dcb/dcbnl.c b/net/dcb/dcbnl.c
index 3cb56af..e508593 100644
--- a/net/dcb/dcbnl.c
+++ b/net/dcb/dcbnl.c
@@ -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;
--
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