84 lines
1.6 KiB
C
84 lines
1.6 KiB
C
|
#ifndef _SUNVNET_H
|
||
|
|
#define _SUNVNET_H
|
||
|
|
|
||
|
|
#define DESC_NCOOKIES(entry_size) \
|
||
|
|
((entry_size) - sizeof(struct vio_net_desc))
|
||
|
|
|
||
|
|
/* length of time before we decide the hardware is borked,
|
||
|
|
* and dev->tx_timeout() should be called to fix the problem
|
||
|
|
*/
|
||
|
|
#define VNET_TX_TIMEOUT (5 * HZ)
|
||
|
|
|
||
|
|
#define VNET_TX_RING_SIZE 512
|
||
|
|
#define VNET_TX_WAKEUP_THRESH(dr) ((dr)->pending / 4)
|
||
|
|
|
||
|
|
/* VNET packets are sent in buffers with the first 6 bytes skipped
|
||
|
|
* so that after the ethernet header the IPv4/IPv6 headers are aligned
|
||
|
|
* properly.
|
||
|
|
*/
|
||
|
|
#define VNET_PACKET_SKIP 6
|
||
|
|
|
||
|
|
struct vnet_tx_entry {
|
||
|
|
void *buf;
|
||
|
|
unsigned int ncookies;
|
||
|
|
struct ldc_trans_cookie cookies[2];
|
||
|
|
};
|
||
|
|
|
||
|
|
struct vnet;
|
||
|
|
struct vnet_port {
|
||
|
|
struct vio_driver_state vio;
|
||
|
|
|
||
|
|
struct hlist_node hash;
|
||
|
|
u8 raddr[ETH_ALEN];
|
||
|
|
u8 switch_port;
|
||
|
|
u8 __pad;
|
||
|
|
|
||
|
|
struct vnet *vp;
|
||
|
|
|
||
|
|
struct vnet_tx_entry tx_bufs[VNET_TX_RING_SIZE];
|
||
|
|
|
||
|
|
struct list_head list;
|
||
|
|
};
|
||
|
|
|
||
|
|
static inline struct vnet_port *to_vnet_port(struct vio_driver_state *vio)
|
||
|
|
{
|
||
|
|
return container_of(vio, struct vnet_port, vio);
|
||
|
|
}
|
||
|
|
|
||
|
|
#define VNET_PORT_HASH_SIZE 16
|
||
|
|
#define VNET_PORT_HASH_MASK (VNET_PORT_HASH_SIZE - 1)
|
||
|
|
|
||
|
|
static inline unsigned int vnet_hashfn(u8 *mac)
|
||
|
|
{
|
||
|
|
unsigned int val = mac[4] ^ mac[5];
|
||
|
|
|
||
|
|
return val & (VNET_PORT_HASH_MASK);
|
||
|
|
}
|
||
|
|
|
||
|
|
struct vnet_mcast_entry {
|
||
|
|
u8 addr[ETH_ALEN];
|
||
|
|
u8 sent;
|
||
|
|
u8 hit;
|
||
|
|
struct vnet_mcast_entry *next;
|
||
|
|
};
|
||
|
|
|
||
|
|
struct vnet {
|
||
|
|
/* Protects port_list and port_hash. */
|
||
|
|
spinlock_t lock;
|
||
|
|
|
||
|
|
struct net_device *dev;
|
||
|
|
|
||
|
|
u32 msg_enable;
|
||
|
|
|
||
|
|
struct list_head port_list;
|
||
|
|
|
||
|
|
struct hlist_head port_hash[VNET_PORT_HASH_SIZE];
|
||
|
|
|
||
|
|
struct vnet_mcast_entry *mcast_list;
|
||
|
|
|
||
|
|
struct list_head list;
|
||
|
|
u64 local_mac;
|
||
|
|
};
|
||
|
|
|
||
|
|
#endif /* _SUNVNET_H */
|