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Diffstat (limited to 'include/linux/netdevice.h')
-rw-r--r--include/linux/netdevice.h56
1 files changed, 35 insertions, 21 deletions
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index d4a4d9867794..94958c109761 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -72,10 +72,6 @@ struct wireless_dev;
/* Backlog congestion levels */
#define NET_RX_SUCCESS 0 /* keep 'em coming, baby */
#define NET_RX_DROP 1 /* packet dropped */
-#define NET_RX_CN_LOW 2 /* storm alert, just in case */
-#define NET_RX_CN_MOD 3 /* Storm on its way! */
-#define NET_RX_CN_HIGH 4 /* The storm is here */
-#define NET_RX_BAD 5 /* packet dropped due to kernel error */
/* NET_XMIT_CN is special. It does not guarantee that this packet is lost. It
* indicates that the device will soon be dropping packets, or already drops
@@ -83,17 +79,19 @@ struct wireless_dev;
#define net_xmit_eval(e) ((e) == NET_XMIT_CN? 0 : (e))
#define net_xmit_errno(e) ((e) != NET_XMIT_CN ? -ENOBUFS : 0)
+/* Driver transmit return codes */
+enum netdev_tx {
+ NETDEV_TX_OK = 0, /* driver took care of packet */
+ NETDEV_TX_BUSY, /* driver tx path was busy*/
+ NETDEV_TX_LOCKED = -1, /* driver tx lock was already taken */
+};
+typedef enum netdev_tx netdev_tx_t;
+
#endif
#define MAX_ADDR_LEN 32 /* Largest hardware address length */
-/* Driver transmit return codes */
-#define NETDEV_TX_OK 0 /* driver took care of packet */
-#define NETDEV_TX_BUSY 1 /* driver tx path was busy*/
-#define NETDEV_TX_LOCKED -1 /* driver tx lock was already taken */
-
#ifdef __KERNEL__
-
/*
* Compute the worst case header length according to the protocols
* used.
@@ -511,9 +509,11 @@ struct netdev_queue {
* This function is called when network device transistions to the down
* state.
*
- * int (*ndo_start_xmit)(struct sk_buff *skb, struct net_device *dev);
+ * netdev_tx_t (*ndo_start_xmit)(struct sk_buff *skb,
+ * struct net_device *dev);
* Called when a packet needs to be transmitted.
- * Must return NETDEV_TX_OK , NETDEV_TX_BUSY, or NETDEV_TX_LOCKED,
+ * Must return NETDEV_TX_OK , NETDEV_TX_BUSY.
+ * (can also return NETDEV_TX_LOCKED iff NETIF_F_LLTX)
* Required can not be NULL.
*
* u16 (*ndo_select_queue)(struct net_device *dev, struct sk_buff *skb);
@@ -584,7 +584,7 @@ struct net_device_ops {
void (*ndo_uninit)(struct net_device *dev);
int (*ndo_open)(struct net_device *dev);
int (*ndo_stop)(struct net_device *dev);
- int (*ndo_start_xmit) (struct sk_buff *skb,
+ netdev_tx_t (*ndo_start_xmit) (struct sk_buff *skb,
struct net_device *dev);
u16 (*ndo_select_queue)(struct net_device *dev,
struct sk_buff *skb);
@@ -627,6 +627,8 @@ struct net_device_ops {
void (*ndo_poll_controller)(struct net_device *dev);
#endif
#if defined(CONFIG_FCOE) || defined(CONFIG_FCOE_MODULE)
+ int (*ndo_fcoe_enable)(struct net_device *dev);
+ int (*ndo_fcoe_disable)(struct net_device *dev);
int (*ndo_fcoe_ddp_setup)(struct net_device *dev,
u16 xid,
struct scatterlist *sgl,
@@ -705,6 +707,7 @@ struct net_device
/* the GSO_MASK reserves bits 16 through 23 */
#define NETIF_F_FCOE_CRC (1 << 24) /* FCoE CRC32 */
#define NETIF_F_SCTP_CSUM (1 << 25) /* SCTP checksum offload */
+#define NETIF_F_FCOE_MTU (1 << 26) /* Supports max FCoE MTU, 2158 bytes*/
/* Segmentation offload features */
#define NETIF_F_GSO_SHIFT 16
@@ -829,6 +832,9 @@ struct net_device
/* Number of TX queues currently active in device */
unsigned int real_num_tx_queues;
+ /* root qdisc from userspace point of view */
+ struct Qdisc *qdisc;
+
unsigned long tx_queue_len; /* Max frames per queue allowed */
spinlock_t tx_global_lock;
/*
@@ -889,7 +895,7 @@ struct net_device
/* class/net/name entry */
struct device dev;
/* space for optional statistics and wireless sysfs groups */
- struct attribute_group *sysfs_groups[3];
+ const struct attribute_group *sysfs_groups[3];
/* rtnetlink link ops */
const struct rtnl_link_ops *rtnl_link_ops;
@@ -992,6 +998,12 @@ static inline void *netdev_priv(const struct net_device *dev)
*/
#define SET_NETDEV_DEV(net, pdev) ((net)->dev.parent = (pdev))
+/* Set the sysfs device type for the network logical device to allow
+ * fin grained indentification of different network device types. For
+ * example Ethernet, Wirelss LAN, Bluetooth, WiMAX etc.
+ */
+#define SET_NETDEV_DEVTYPE(net, devtype) ((net)->dev.type = (devtype))
+
/**
* netif_napi_add - initialize a napi context
* @dev: network device
@@ -1260,7 +1272,7 @@ static inline void netif_tx_wake_queue(struct netdev_queue *dev_queue)
{
#ifdef CONFIG_NETPOLL_TRAP
if (netpoll_trap()) {
- clear_bit(__QUEUE_STATE_XOFF, &dev_queue->state);
+ netif_tx_start_queue(dev_queue);
return;
}
#endif
@@ -1366,7 +1378,8 @@ static inline int netif_running(const struct net_device *dev)
static inline void netif_start_subqueue(struct net_device *dev, u16 queue_index)
{
struct netdev_queue *txq = netdev_get_tx_queue(dev, queue_index);
- clear_bit(__QUEUE_STATE_XOFF, &txq->state);
+
+ netif_tx_start_queue(txq);
}
/**
@@ -1383,7 +1396,7 @@ static inline void netif_stop_subqueue(struct net_device *dev, u16 queue_index)
if (netpoll_trap())
return;
#endif
- set_bit(__QUEUE_STATE_XOFF, &txq->state);
+ netif_tx_stop_queue(txq);
}
/**
@@ -1397,7 +1410,8 @@ static inline int __netif_subqueue_stopped(const struct net_device *dev,
u16 queue_index)
{
struct netdev_queue *txq = netdev_get_tx_queue(dev, queue_index);
- return test_bit(__QUEUE_STATE_XOFF, &txq->state);
+
+ return netif_tx_queue_stopped(txq);
}
static inline int netif_subqueue_stopped(const struct net_device *dev,
@@ -1749,8 +1763,7 @@ static inline void netif_tx_unlock(struct net_device *dev)
* force a schedule.
*/
clear_bit(__QUEUE_STATE_FROZEN, &txq->state);
- if (!test_bit(__QUEUE_STATE_XOFF, &txq->state))
- __netif_schedule(txq->qdisc);
+ netif_schedule_queue(txq);
}
spin_unlock(&dev->tx_global_lock);
}
@@ -1860,7 +1873,8 @@ extern void __dev_addr_unsync(struct dev_addr_list **to, int *to_count, struct
extern int dev_set_promiscuity(struct net_device *dev, int inc);
extern int dev_set_allmulti(struct net_device *dev, int inc);
extern void netdev_state_change(struct net_device *dev);
-extern void netdev_bonding_change(struct net_device *dev);
+extern void netdev_bonding_change(struct net_device *dev,
+ unsigned long event);
extern void netdev_features_change(struct net_device *dev);
/* Load a device via the kmod */
extern void dev_load(struct net *net, const char *name);
generated by cgit v1.2.3 (git 2.39.0) at 2024-11-26 12:45:39 +0300