Commit | Line | Data |
---|---|---|
4c521e42 DM |
1 | #ifndef _SUNVNET_H |
2 | #define _SUNVNET_H | |
3 | ||
1d311ad2 SV |
4 | #include <linux/interrupt.h> |
5 | ||
4c521e42 DM |
6 | #define DESC_NCOOKIES(entry_size) \ |
7 | ((entry_size) - sizeof(struct vio_net_desc)) | |
8 | ||
9 | /* length of time before we decide the hardware is borked, | |
10 | * and dev->tx_timeout() should be called to fix the problem | |
11 | */ | |
12 | #define VNET_TX_TIMEOUT (5 * HZ) | |
13 | ||
8e845f4c DS |
14 | /* length of time (or less) we expect pending descriptors to be marked |
15 | * as VIO_DESC_DONE and skbs ready to be freed | |
16 | */ | |
17 | #define VNET_CLEAN_TIMEOUT ((HZ/100)+1) | |
18 | ||
42db672d | 19 | #define VNET_MAXPACKET (65535ULL + ETH_HLEN + VLAN_HLEN) |
4c521e42 DM |
20 | #define VNET_TX_RING_SIZE 512 |
21 | #define VNET_TX_WAKEUP_THRESH(dr) ((dr)->pending / 4) | |
22 | ||
368e36ed DS |
23 | #define VNET_MINTSO 2048 /* VIO protocol's minimum TSO len */ |
24 | #define VNET_MAXTSO 65535 /* VIO protocol's maximum TSO len */ | |
25 | ||
4c521e42 DM |
26 | /* VNET packets are sent in buffers with the first 6 bytes skipped |
27 | * so that after the ethernet header the IPv4/IPv6 headers are aligned | |
28 | * properly. | |
29 | */ | |
30 | #define VNET_PACKET_SKIP 6 | |
31 | ||
42db672d DS |
32 | #define VNET_MAXCOOKIES (VNET_MAXPACKET/PAGE_SIZE + 1) |
33 | ||
4c521e42 | 34 | struct vnet_tx_entry { |
8e845f4c | 35 | struct sk_buff *skb; |
4c521e42 | 36 | unsigned int ncookies; |
42db672d | 37 | struct ldc_trans_cookie cookies[VNET_MAXCOOKIES]; |
4c521e42 DM |
38 | }; |
39 | ||
40 | struct vnet; | |
41 | struct vnet_port { | |
42 | struct vio_driver_state vio; | |
43 | ||
44 | struct hlist_node hash; | |
45 | u8 raddr[ETH_ALEN]; | |
368e36ed DS |
46 | unsigned switch_port:1; |
47 | unsigned tso:1; | |
48 | unsigned __pad:14; | |
4c521e42 DM |
49 | |
50 | struct vnet *vp; | |
51 | ||
52 | struct vnet_tx_entry tx_bufs[VNET_TX_RING_SIZE]; | |
53 | ||
54 | struct list_head list; | |
d1015645 SV |
55 | |
56 | u32 stop_rx_idx; | |
57 | bool stop_rx; | |
58 | bool start_cons; | |
e4defc77 | 59 | |
8e845f4c DS |
60 | struct timer_list clean_timer; |
61 | ||
e4defc77 | 62 | u64 rmtu; |
368e36ed | 63 | u16 tsolen; |
69088822 SV |
64 | |
65 | struct napi_struct napi; | |
66 | u32 napi_stop_idx; | |
67 | bool napi_resume; | |
68 | int rx_event; | |
d51bffd1 | 69 | u16 q_index; |
4c521e42 DM |
70 | }; |
71 | ||
72 | static inline struct vnet_port *to_vnet_port(struct vio_driver_state *vio) | |
73 | { | |
74 | return container_of(vio, struct vnet_port, vio); | |
75 | } | |
76 | ||
77 | #define VNET_PORT_HASH_SIZE 16 | |
78 | #define VNET_PORT_HASH_MASK (VNET_PORT_HASH_SIZE - 1) | |
79 | ||
80 | static inline unsigned int vnet_hashfn(u8 *mac) | |
81 | { | |
82 | unsigned int val = mac[4] ^ mac[5]; | |
83 | ||
84 | return val & (VNET_PORT_HASH_MASK); | |
85 | } | |
86 | ||
028ebff2 DM |
87 | struct vnet_mcast_entry { |
88 | u8 addr[ETH_ALEN]; | |
89 | u8 sent; | |
90 | u8 hit; | |
91 | struct vnet_mcast_entry *next; | |
92 | }; | |
93 | ||
4c521e42 DM |
94 | struct vnet { |
95 | /* Protects port_list and port_hash. */ | |
96 | spinlock_t lock; | |
97 | ||
98 | struct net_device *dev; | |
99 | ||
100 | u32 msg_enable; | |
4c521e42 DM |
101 | |
102 | struct list_head port_list; | |
103 | ||
104 | struct hlist_head port_hash[VNET_PORT_HASH_SIZE]; | |
9184a046 | 105 | |
028ebff2 DM |
106 | struct vnet_mcast_entry *mcast_list; |
107 | ||
9184a046 DM |
108 | struct list_head list; |
109 | u64 local_mac; | |
1d311ad2 | 110 | |
d51bffd1 | 111 | int nports; |
4c521e42 DM |
112 | }; |
113 | ||
114 | #endif /* _SUNVNET_H */ |