int8 mrf_if_tx_queue(I_F i_f, uint8 bnum ){
const MRF_IF *mif = mrf_if_ptr(i_f);
MRF_BUFF_STATE *mbst = _mrf_buff_state(bnum);
BuffQueue *qp = mif->txqueue;
//mrf_debug(5,"mrf_if_tx_queue entry\n");
if ( bnum >= _MRF_BUFFS)
return -2;
//mrf_debug(5,"mrf_if_tx_queue 1\n");
if (qp->push(bnum) == 0) {
//_sys_ifs[i_f].status->state = MRF_ST_TXQ;
mbst->owner = i_f;
mbst->tx_timer = mif->type->tx_del; // FIXME shouldn't need any of this
mbst->state = TXQUEUE;
mbst->retry_count = 0;
mrf_tick_enable();
mrf_debug(5,"mrf_if_tx_queue OK i_f %d buff %d retry_count %d qip %d qop %d items %d\n",
i_f,bnum,mbst->retry_count,qp->get_qip(),qp->get_qop(),qp->items());
return 0;
}
else {
// fall through if no space in queue
mrf_if_ptr(i_f)->status->stats.tx_overruns++;
return -1;
}
}
void mrf_if_print_info(I_F i_f){
const MRF_IF *ifp;
IF_STATUS *ifs = mrf_if_ptr(i_f)->status;
int i = (int)i_f;
ifp = mrf_if_ptr((I_F)i);
mrf_debug(5,"I_F %d state %s waiting_resp %d txq_da %d ackq da %d timer %d resp_timer %d\n",i,
mrf_if_state_name(i_f),ifs->waiting_resp,
ifp->txqueue->data_avail(),ifp->ackqueue->items(),
ifs->timer,ifs->resp_timer);
}
int mrf_if_transmitting(I_F i_f){
IF_STATUS *ifs = mrf_if_ptr(i_f)->status;
if ((ifs->state==TX_BUFF) || (ifs->state==TX_ACK))
return 1;
else
return 0;
}
int mrf_if_recieving(I_F i_f){
IF_STATUS *ifs = mrf_if_ptr(i_f)->status;
if (mrf_if_transmitting(i_f)==0)
return 1;
else
return 0;
}
const char * mrf_if_state_name(I_F i_f){
const MRF_IF *mif = mrf_if_ptr(i_f);
if (mif == NULL)
return illegal_if_warning;
else
return ifstnames[mif->status->state];
}
// this is where OS processes buffer
int mrf_buff_loaded(uint8 bnum){
MRF_IF *ifp;
if (bnum < _MRF_BUFFS){
mrf_debug("mrf_buff_loaded bnum entry %u owner %u\n",bnum, _mrf_buffst[bnum].owner);
ifp = mrf_if_ptr( _mrf_buffst[bnum].owner);
printf("ifp = %p\n",ifp);
ifp->status->stats.rx_pkts += 1;
_mrf_buffst[bnum].state = LOADED;
//_mrf_buff_print();
_mrf_process_buff(bnum);
mrf_debug("mrf_buff_loaded exit\n");
//_mrf_buff_print();
return 0;
} else {
return -1;
}
}
void mrf_if_init(){
unsigned int i,j;
uint8 *dptr;
//mrf_debug(5,"mrf_if_init entry NUM_INTERFACES %d \n",NUM_INTERFACES);
for (i = 0 ; i < NUM_INTERFACES ; i++){
//mrf_debug(5,"interface %d\n",i);
const MRF_IF *mif = mrf_if_ptr((I_F)i);
// rough zeroing of status data including stats
dptr = (uint8 *)mif->status;
//mrf_debug(5,"dptr = %p sizeof IF_STATUS %lu\n",dptr,sizeof(IF_STATUS));
for ( j = 0 ; j < sizeof(IF_STATUS) ; j++)
dptr[j] = 0;
//queue_init(&(mif->status->txqueue));
*(mif->txqueue) = BuffQueue();
mif->status->state = IDLE;
#ifdef MRF_ARCH_lnx
*(mif->fd) = (*(mif->type->funcs.init))((I_F)i); //needed for epoll
#else
(*(mif->type->funcs.init))((I_F)i);
#endif
}
}
void mrf_if_tx_done(I_F i_f){
const MRF_IF *mif = mrf_if_ptr(i_f);
mif->status->tx_complete = 1;
//mrf_debug(5,"mrf_if_tx_done I_F %d state %d \n",i_f,mif->status->state);
}
