/*
* This routine is called if the 9x9 does not return completion status
* for a command after a CAM specified time.
*/
static void
mpttimeout(void *arg)
{
request_t *req;
union ccb *ccb = arg;
u_int32_t oseq;
mpt_softc_t *mpt;
mpt = ccb->ccb_h.ccb_mpt_ptr;
MPT_LOCK(mpt);
req = ccb->ccb_h.ccb_req_ptr;
oseq = req->sequence;
mpt->timeouts++;
if (mpt_intr(mpt)) {
if (req->sequence != oseq) {
mpt_prt(mpt, "bullet missed in timeout");
MPT_UNLOCK(mpt);
return;
}
mpt_prt(mpt, "bullet U-turned in timeout: got us");
}
mpt_prt(mpt,
"time out on request index = 0x%02x sequence = 0x%08x",
req->index, req->sequence);
mpt_check_doorbell(mpt);
mpt_prt(mpt, "Status %08x; Mask %08x; Doorbell %08x",
mpt_read(mpt, MPT_OFFSET_INTR_STATUS),
mpt_read(mpt, MPT_OFFSET_INTR_MASK),
mpt_read(mpt, MPT_OFFSET_DOORBELL) );
printf("request state %s\n", mpt_req_state(req->debug));
if (ccb != req->ccb) {
printf("time out: ccb %p != req->ccb %p\n",
ccb,req->ccb);
}
mpt_print_scsi_io_request((MSG_SCSI_IO_REQUEST *)req->req_vbuf);
req->debug = REQ_TIMEOUT;
req->ccb = NULL;
req->link.sle_next = (void *) mpt;
(void) timeout(mpttimeout2, (caddr_t)req, hz / 10);
ccb->ccb_h.status = CAM_CMD_TIMEOUT;
ccb->ccb_h.status |= CAM_RELEASE_SIMQ;
mpt->outofbeer = 0;
MPTLOCK_2_CAMLOCK(mpt);
xpt_done(ccb);
CAMLOCK_2_MPTLOCK(mpt);
MPT_UNLOCK(mpt);
}
/* This routine is used after a system crash to dump core onto the
* swap device.
*/
static void
mpt_poll(struct cam_sim *sim)
{
mpt_softc_t *mpt = (mpt_softc_t *) cam_sim_softc(sim);
MPT_LOCK(mpt);
mpt_intr(mpt);
MPT_UNLOCK(mpt);
}
static void
mpt_pci_intr(void *arg)
{
struct mpt_softc *mpt;
mpt = (struct mpt_softc *)arg;
MPT_LOCK(mpt);
mpt_intr(mpt);
MPT_UNLOCK(mpt);
}
static void
mpttimeout2(void *arg)
{
request_t *req = arg;
if (req->debug == REQ_TIMEOUT) {
mpt_softc_t *mpt = (mpt_softc_t *) req->link.sle_next;
MPT_LOCK(mpt);
mpt_free_request(mpt, req);
MPT_UNLOCK(mpt);
}
}
