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* 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);
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