| #ifndef _SUNVNETCOMMON_H |
| #define _SUNVNETCOMMON_H |
| |
| #include <linux/interrupt.h> |
| |
| /* length of time (or less) we expect pending descriptors to be marked |
| * as VIO_DESC_DONE and skbs ready to be freed |
| */ |
| #define VNET_CLEAN_TIMEOUT ((HZ / 100) + 1) |
| |
| #define VNET_MAXPACKET (65535ULL + ETH_HLEN + VLAN_HLEN) |
| #define VNET_TX_RING_SIZE 512 |
| #define VNET_TX_WAKEUP_THRESH(dr) ((dr)->pending / 4) |
| |
| #define VNET_MINTSO 2048 /* VIO protocol's minimum TSO len */ |
| #define VNET_MAXTSO 65535 /* VIO protocol's maximum TSO len */ |
| |
| #define VNET_MAX_MTU 65535 |
| |
| /* 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 |
| |
| #define VNET_MAXCOOKIES (VNET_MAXPACKET / PAGE_SIZE + 1) |
| |
| #define VNET_MAX_TXQS 16 |
| |
| struct vnet_tx_entry { |
| struct sk_buff *skb; |
| unsigned int ncookies; |
| struct ldc_trans_cookie cookies[VNET_MAXCOOKIES]; |
| }; |
| |
| struct vnet; |
| |
| struct vnet_port_stats { |
| /* keep them all the same size */ |
| u32 rx_bytes; |
| u32 tx_bytes; |
| u32 rx_packets; |
| u32 tx_packets; |
| u32 event_up; |
| u32 event_reset; |
| u32 q_placeholder; |
| }; |
| |
| #define NUM_VNET_PORT_STATS (sizeof(struct vnet_port_stats) / sizeof(u32)) |
| |
| /* Structure to describe a vnet-port or vsw-port in the MD. |
| * If the vsw bit is set, this structure represents a vswitch |
| * port, and the net_device can be found from ->dev. If the |
| * vsw bit is not set, the net_device is available from ->vp->dev. |
| * See the VNET_PORT_TO_NET_DEVICE macro below. |
| */ |
| struct vnet_port { |
| struct vio_driver_state vio; |
| |
| struct vnet_port_stats stats; |
| |
| struct hlist_node hash; |
| u8 raddr[ETH_ALEN]; |
| unsigned switch_port:1; |
| unsigned tso:1; |
| unsigned vsw:1; |
| unsigned __pad:13; |
| |
| struct vnet *vp; |
| struct net_device *dev; |
| |
| struct vnet_tx_entry tx_bufs[VNET_TX_RING_SIZE]; |
| |
| struct list_head list; |
| |
| u32 stop_rx_idx; |
| bool stop_rx; |
| bool start_cons; |
| |
| struct timer_list clean_timer; |
| |
| u64 rmtu; |
| u16 tsolen; |
| |
| struct napi_struct napi; |
| u32 napi_stop_idx; |
| bool napi_resume; |
| int rx_event; |
| u16 q_index; |
| }; |
| |
| 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 { |
| spinlock_t lock; /* Protects port_list and port_hash. */ |
| struct net_device *dev; |
| u32 msg_enable; |
| u8 q_used[VNET_MAX_TXQS]; |
| 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; |
| int nports; |
| }; |
| |
| /* Def used by common code to get the net_device from the proper location */ |
| #define VNET_PORT_TO_NET_DEVICE(__port) \ |
| ((__port)->vsw ? (__port)->dev : (__port)->vp->dev) |
| |
| /* Common funcs */ |
| void sunvnet_clean_timer_expire_common(unsigned long port0); |
| int sunvnet_open_common(struct net_device *dev); |
| int sunvnet_close_common(struct net_device *dev); |
| void sunvnet_set_rx_mode_common(struct net_device *dev, struct vnet *vp); |
| int sunvnet_set_mac_addr_common(struct net_device *dev, void *p); |
| void sunvnet_tx_timeout_common(struct net_device *dev); |
| int sunvnet_start_xmit_common(struct sk_buff *skb, struct net_device *dev, |
| struct vnet_port *(*vnet_tx_port) |
| (struct sk_buff *, struct net_device *)); |
| #ifdef CONFIG_NET_POLL_CONTROLLER |
| void sunvnet_poll_controller_common(struct net_device *dev, struct vnet *vp); |
| #endif |
| void sunvnet_event_common(void *arg, int event); |
| int sunvnet_send_attr_common(struct vio_driver_state *vio); |
| int sunvnet_handle_attr_common(struct vio_driver_state *vio, void *arg); |
| void sunvnet_handshake_complete_common(struct vio_driver_state *vio); |
| int sunvnet_poll_common(struct napi_struct *napi, int budget); |
| void sunvnet_port_free_tx_bufs_common(struct vnet_port *port); |
| void vnet_port_reset(struct vnet_port *port); |
| bool sunvnet_port_is_up_common(struct vnet_port *vnet); |
| void sunvnet_port_add_txq_common(struct vnet_port *port); |
| void sunvnet_port_rm_txq_common(struct vnet_port *port); |
| |
| #endif /* _SUNVNETCOMMON_H */ |