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net: introduce and use netdev_features_t for device features sets

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v2:	add couple missing conversions in drivers
	split unexporting netdev_fix_features()
	implemented %pNF
	convert sock::sk_route_(no?)caps

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Michał Mirosław
2011-11-15 15:29:55 +00:00
committed by David S. Miller
parent a59e2ecb85
commit c8f44affb7
74 changed files with 305 additions and 202 deletions
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41
include/linux/netdevice.h
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@@ -847,12 +847,13 @@ struct netdev_tc_txq {
* Called to release previously enslaved netdev.
*
* Feature/offload setting functions.
* u32 (*ndo_fix_features)(struct net_device *dev, u32 features);
* netdev_features_t (*ndo_fix_features)(struct net_device *dev,
* netdev_features_t features);
* Adjusts the requested feature flags according to device-specific
* constraints, and returns the resulting flags. Must not modify
* the device state.
*
* int (*ndo_set_features)(struct net_device *dev, u32 features);
* int (*ndo_set_features)(struct net_device *dev, netdev_features_t features);
* Called to update device configuration to new features. Passed
* feature set might be less than what was returned by ndo_fix_features()).
* Must return >0 or -errno if it changed dev->features itself.
@@ -946,10 +947,10 @@ struct net_device_ops {
struct net_device *slave_dev);
int (*ndo_del_slave)(struct net_device *dev,
struct net_device *slave_dev);
u32 (*ndo_fix_features)(struct net_device *dev,
u32 features);
netdev_features_t (*ndo_fix_features)(struct net_device *dev,
netdev_features_t features);
int (*ndo_set_features)(struct net_device *dev,
u32 features);
netdev_features_t features);
};
/*
@@ -999,13 +1000,13 @@ struct net_device {
struct list_head unreg_list;
/* currently active device features */
u32 features;
netdev_features_t features;
/* user-changeable features */
u32 hw_features;
netdev_features_t hw_features;
/* user-requested features */
u32 wanted_features;
netdev_features_t wanted_features;
/* mask of features inheritable by VLAN devices */
u32 vlan_features;
netdev_features_t vlan_features;
/* Interface index. Unique device identifier */
int ifindex;
@@ -1439,7 +1440,7 @@ struct packet_type {
struct packet_type *,
struct net_device *);
struct sk_buff *(*gso_segment)(struct sk_buff *skb,
u32 features);
netdev_features_t features);
int (*gso_send_check)(struct sk_buff *skb);
struct sk_buff **(*gro_receive)(struct sk_buff **head,
struct sk_buff *skb);
@@ -2444,7 +2445,8 @@ extern int netdev_set_master(struct net_device *dev, struct net_device *master)
extern int netdev_set_bond_master(struct net_device *dev,
struct net_device *master);
extern int skb_checksum_help(struct sk_buff *skb);
extern struct sk_buff *skb_gso_segment(struct sk_buff *skb, u32 features);
extern struct sk_buff *skb_gso_segment(struct sk_buff *skb,
netdev_features_t features);
#ifdef CONFIG_BUG
extern void netdev_rx_csum_fault(struct net_device *dev);
#else
@@ -2471,11 +2473,13 @@ extern const char *netdev_drivername(const struct net_device *dev);
extern void linkwatch_run_queue(void);
static inline u32 netdev_get_wanted_features(struct net_device *dev)
static inline netdev_features_t netdev_get_wanted_features(
struct net_device *dev)
{
return (dev->features & ~dev->hw_features) | dev->wanted_features;
}
u32 netdev_increment_features(u32 all, u32 one, u32 mask);
netdev_features_t netdev_increment_features(netdev_features_t all,
netdev_features_t one, netdev_features_t mask);
int __netdev_update_features(struct net_device *dev);
void netdev_update_features(struct net_device *dev);
void netdev_change_features(struct net_device *dev);
@@ -2483,21 +2487,22 @@ void netdev_change_features(struct net_device *dev);
void netif_stacked_transfer_operstate(const struct net_device *rootdev,
struct net_device *dev);
u32 netif_skb_features(struct sk_buff *skb);
netdev_features_t netif_skb_features(struct sk_buff *skb);
static inline int net_gso_ok(u32 features, int gso_type)
static inline int net_gso_ok(netdev_features_t features, int gso_type)
{
int feature = gso_type << NETIF_F_GSO_SHIFT;
netdev_features_t feature = gso_type << NETIF_F_GSO_SHIFT;
return (features & feature) == feature;
}
static inline int skb_gso_ok(struct sk_buff *skb, u32 features)
static inline int skb_gso_ok(struct sk_buff *skb, netdev_features_t features)
{
return net_gso_ok(features, skb_shinfo(skb)->gso_type) &&
(!skb_has_frag_list(skb) || (features & NETIF_F_FRAGLIST));
}
static inline int netif_needs_gso(struct sk_buff *skb, int features)
static inline int netif_needs_gso(struct sk_buff *skb,
netdev_features_t features)
{
return skb_is_gso(skb) && (!skb_gso_ok(skb, features) ||
unlikely(skb->ip_summed != CHECKSUM_PARTIAL));