blob: 7539b596bff8e2bf4d1045e2ad41b05fd50c5323 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
|
/*
* A filtering function. There are two filters/port. Filter "0"
* is the input filter, and filter "1" is the output filter.
*/
typedef int (FILTER_FUNC)(uchar *pktp, int pktlen, ulong *scratch, int port);
#define NFILTERS 2
/*
* The per port structure
*/
typedef struct
{
int chan; /* Channel number (0-3) */
ulong portaddr; /* address of 596 port register */
volatile ulong *ca; /* address of 596 chan attention */
ulong intmask; /* Interrupt mask for this port */
ulong intack; /* Ack bit for this port */
uchar ethaddr[6]; /* Ethernet address of this port */
int is_promisc; /* Port is promiscuous */
int debug; /* Debugging turned on */
I596_ISCP *iscpp; /* Uncached ISCP pointer */
I596_SCP *scpp; /* Uncached SCP pointer */
I596_SCB *scbp; /* Uncached SCB pointer */
I596_ISCP iscp;
I596_SCB scb;
/* Command Queue */
I596_CB *cb0;
I596_CB *cbN;
I596_CB *cb_head;
I596_CB *cb_tail;
/* Receive Queue */
I596_RFD *rfd0;
I596_RFD *rfdN;
I596_RFD *rfd_head;
I596_RFD *rfd_tail;
/* Receive Buffers */
I596_RBD *rbd0;
I596_RBD *rbdN;
I596_RBD *rbd_head;
I596_RBD *rbd_tail;
int buf_size; /* Size of an RBD buffer */
int buf_cnt; /* Total RBD's allocated */
/* Rx Statistics */
ulong cnt_rx_cnt; /* Total packets rcvd, good and bad */
ulong cnt_rx_good; /* Total good packets rcvd */
ulong cnt_rx_bad; /* Total of all bad packets rcvd */
/* Subtotals can be gotten from SCB */
ulong cnt_rx_nores; /* No resources */
ulong cnt_rx_bytes; /* Total bytes rcvd */
/* Tx Statistics */
ulong cnt_tx_queued;
ulong cnt_tx_done;
ulong cnt_tx_freed;
ulong cnt_tx_nores; /* No resources */
ulong cnt_tx_bad;
ulong cnt_tx_err_late;
ulong cnt_tx_err_nocrs;
ulong cnt_tx_err_nocts;
ulong cnt_tx_err_under;
ulong cnt_tx_err_maxcol;
ulong cnt_tx_collisions;
/* Special stuff for host */
# define rfd_freed cnt_rx_cnt
ulong rbd_freed;
int host_timer;
/* Added after first beta */
ulong cnt_tx_races; /* Counts race conditions */
int spanstate;
ulong cnt_st_tx; /* send span tree pkts */
ulong cnt_st_fail_tx; /* Failures to send span tree pkts */
ulong cnt_st_fail_rbd;/* Failures to send span tree pkts */
ulong cnt_st_rx; /* rcv span tree pkts */
ulong cnt_st_rx_bad; /* bogus st packets rcvd */
ulong cnt_rx_fwd; /* Rcvd packets that were forwarded */
ulong cnt_rx_mcast; /* Multicast pkts received */
ulong cnt_tx_mcast; /* Multicast pkts transmitted */
ulong cnt_tx_bytes; /* Bytes transmitted */
/*
* Packet filtering
* Filter 0: input filter
* Filter 1: output filter
*/
ulong *filter_space[NFILTERS];
FILTER_FUNC *filter_func[NFILTERS];
ulong filter_cnt[NFILTERS];
ulong filter_len[NFILTERS];
ulong pad[ (512-300) / 4];
} PORT;
/*
* Port[0] is host interface
* Port[1..SE_NPORTS] are external 10 Base T ports. Fewer may be in
* use, depending on whether this is an SE-4 or
* an SE-6.
* Port[SE_NPORTS] Pseudo-port for Spanning tree and SNMP
*/
extern PORT Port[1+SE_NPORTS+1];
extern int Nports; /* Number of genuine ethernet controllers */
extern int Nchan; /* ... plus one for host interface */
extern int FirstChan; /* 0 or 1, depedning on whether host is used */
extern int NumChan; /* 4 or 5 */
/*
* A few globals
*/
extern int IsPromisc;
extern int MultiNicMode;
/*
* Functions
*/
extern void eth_xmit_spew_on(PORT *p, int cnt);
extern void eth_xmit_spew_off(PORT *p);
extern I596_RBD *alloc_rbds(PORT *p, int num);
extern I596_CB * eth_cb_alloc(PORT *p);
|
