void simpledisk_bus_delay_complete (int devno, ioreq_event *curr, int sentbusno)
{
simpledisk_t *currdisk;
intchar slotno;
intchar busno;
int depth;
currdisk = getsimpledisk (devno);
// fprintf (outputfile, "Entered disk_bus_delay_complete\n");
if (curr == currdisk->buswait) {
currdisk->buswait = curr->next;
} else {
ioreq_event *tmp = currdisk->buswait;
while ((tmp->next != NULL) && (tmp->next != curr)) {
tmp = tmp->next;
}
if (tmp->next != curr) {
fprintf(stderr, "Bus delay complete for unknown simpledisk request - devno %d, busno %d\n", devno, busno.value);
exit(1);
}
tmp->next = curr->next;
}
busno.value = curr->busno;
slotno.value = curr->slotno;
depth = currdisk->depth[0];
slotno.byte[depth] = slotno.byte[depth] >> 4;
curr->time = 0.0;
if (depth == 0) {
intr_request ((event *)curr);
} else {
bus_deliver_event(busno.byte[depth], slotno.byte[depth], curr);
}
}
void ssd_bus_delay_complete (int devno, ioreq_event *curr, int sentbusno)
{
ssd_t *currdisk;
intchar slotno;
intchar busno;
int depth;
currdisk = getssd (devno);
ssd_assert_current_activity(currdisk, curr);
// fprintf (outputfile, "Entered ssd_bus_delay_complete\n");
// EPW: I think the buswait logic doesn't do anything, is confusing, and risks
// overusing the "next" field, although an item shouldn't currently be a queue.
if (curr == currdisk->buswait) {
currdisk->buswait = curr->next;
} else {
ioreq_event *tmp = currdisk->buswait;
while ((tmp->next != NULL) && (tmp->next != curr)) {
tmp = tmp->next;
}
if (tmp->next != curr) {
// fixed a warning here
//fprintf(stderr, "Bus delay complete for unknown ssd request - devno %d, busno %d\n", devno, busno.value);
fprintf(stderr, "Bus delay complete for unknown ssd request - devno %d, busno %d\n", devno, curr->busno);
exit(1);
}
tmp->next = curr->next;
}
busno.value = curr->busno;
slotno.value = curr->slotno;
depth = currdisk->depth[0];
slotno.byte[depth] = slotno.byte[depth] >> 4;
curr->time = 0.0;
if (depth == 0) {
intr_request ((event *)curr);
} else {
bus_deliver_event(busno.byte[depth], slotno.byte[depth], curr);
}
}
void iodriver_schedule (int iodriverno, ioreq_event *curr)
{
ctlr *ctl;
#ifdef DEBUG_IODRIVER
fprintf (outputfile, "%f: iodriver_schedule - devno %d, blkno %lld, bcount %d, read %d\n", simtime, curr->devno, curr->blkno, curr->bcount, (curr->flags & READ));
#endif
ASSERT1(curr->type == IO_ACCESS_ARRIVE, "curr->type", curr->type);
if ((iodrivers[iodriverno]->consttime != 0.0)
&& (iodrivers[iodriverno]->consttime != IODRIVER_TRACED_QUEUE_TIMES))
{
curr->type = IO_INTERRUPT;
if (iodrivers[iodriverno]->consttime > 0.0) {
curr->time = iodrivers[iodriverno]->consttime;
}
else {
curr->time = ((double) curr->tempint2 / (double) 1000);
}
curr->cause = COMPLETION;
intr_request((event *) curr);
return;
}
ctl = iodrivers[iodriverno]->devices[(curr->devno)].ctl;
if ((ctl) && (ctl->flags & DRIVER_C700)) {
if ((ctl->pendio)
&& ((curr->devno != ctl->pendio->next->devno)
|| (curr->opid != ctl->pendio->next->opid)
|| (curr->blkno != ctl->pendio->next->blkno)))
{
curr->next = ctl->pendio->next;
ctl->pendio->next = curr;
ctl->pendio = curr;
return;
}
else if (ctl->pendio == NULL) {
ctl->pendio = ioreq_copy(curr);
ctl->pendio->next = ctl->pendio;
}
if (ctl->flags & DRIVER_CTLR_BUSY) {
addtoextraq((event *) curr);
return;
}
}
curr->busno = iodrivers[iodriverno]->devices[(curr->devno)].buspath.value;
curr->slotno = iodrivers[iodriverno]->devices[(curr->devno)].slotpath.value;
if (iodrivers[iodriverno]->devices[(curr->devno)].queuectlr != -1) {
int ctlrno = iodrivers[iodriverno]->devices[(curr->devno)].queuectlr;
ctl = &iodrivers[iodriverno]->ctlrs[ctlrno];
if ((ctl->maxreqsize) && (curr->bcount > ctl->maxreqsize)) {
ioreq_event *totalreq = ioreq_copy(curr);
/*
fprintf (outputfile, "%f, oversized request: opid %d, blkno %lld, bcount %d, maxreqsize %d\n", simtime, curr->opid, curr->blkno, curr->bcount, ctl->maxreqsize);
*/
curr->bcount = ctl->maxreqsize;
if (ctl->oversized) {
totalreq->next = ctl->oversized->next;
ctl->oversized->next = totalreq;
} else {
totalreq->next = totalreq;
ctl->oversized = totalreq;
}
}
}
iodriver_send_event_down_path(curr);
/*
fprintf (outputfile, "Leaving iodriver_schedule\n");
*/
}
