void
tws_reset(void *arg)
{
struct tws_softc *sc = (struct tws_softc *)arg;
mtx_lock(&sc->gen_lock);
if ( tws_get_state(sc) == TWS_RESET ) {
mtx_unlock(&sc->gen_lock);
return;
}
tws_teardown_intr(sc);
xpt_freeze_simq(sc->sim, 1);
tws_send_event(sc, TWS_RESET_START);
device_printf(sc->tws_dev, "Resetting controller\n");
tws_assert_soft_reset(sc);
tws_turn_off_interrupts(sc);
tws_reset_cb( (void*) sc );
tws_reinit( (void*) sc );
// device_printf(sc->tws_dev, "Controller Reset complete!\n");
tws_send_event(sc, TWS_RESET_COMPLETE);
mtx_unlock(&sc->gen_lock);
xpt_release_simq(sc->sim, 1);
tws_setup_intr(sc, sc->irqs);
}
static int
tws_setup_irq(struct tws_softc *sc)
{
int messages;
u_int16_t cmd;
cmd = pci_read_config(sc->tws_dev, PCIR_COMMAND, 2);
switch(sc->intr_type) {
case TWS_INTx :
cmd = cmd & ~0x0400;
pci_write_config(sc->tws_dev, PCIR_COMMAND, cmd, 2);
sc->irqs = 1;
sc->irq_res_id[0] = 0;
sc->irq_res[0] = bus_alloc_resource_any(sc->tws_dev, SYS_RES_IRQ,
&sc->irq_res_id[0], RF_SHAREABLE | RF_ACTIVE);
if ( ! sc->irq_res[0] )
return(FAILURE);
if ( tws_setup_intr(sc, sc->irqs) == FAILURE )
return(FAILURE);
device_printf(sc->tws_dev, "Using legacy INTx\n");
break;
case TWS_MSI :
cmd = cmd | 0x0400;
pci_write_config(sc->tws_dev, PCIR_COMMAND, cmd, 2);
sc->irqs = 1;
sc->irq_res_id[0] = 1;
messages = 1;
if (pci_alloc_msi(sc->tws_dev, &messages) != 0 ) {
TWS_TRACE(sc, "pci alloc msi fail", 0, messages);
return(FAILURE);
}
sc->irq_res[0] = bus_alloc_resource_any(sc->tws_dev, SYS_RES_IRQ,
&sc->irq_res_id[0], RF_SHAREABLE | RF_ACTIVE);
if ( !sc->irq_res[0] )
return(FAILURE);
if ( tws_setup_intr(sc, sc->irqs) == FAILURE )
return(FAILURE);
device_printf(sc->tws_dev, "Using MSI\n");
break;
}
return(SUCCESS);
}
void
tws_timeout(void *arg)
{
struct tws_request *req = (struct tws_request *)arg;
struct tws_softc *sc = req->sc;
if ( req->error_code == TWS_REQ_RET_RESET ) {
return;
}
mtx_lock(&sc->gen_lock);
if ( req->error_code == TWS_REQ_RET_RESET ) {
mtx_unlock(&sc->gen_lock);
return;
}
if ( tws_get_state(sc) == TWS_RESET ) {
mtx_unlock(&sc->gen_lock);
return;
}
tws_teardown_intr(sc);
xpt_freeze_simq(sc->sim, 1);
tws_send_event(sc, TWS_RESET_START);
if (req->type == TWS_REQ_TYPE_SCSI_IO) {
device_printf(sc->tws_dev, "I/O Request timed out... Resetting controller\n");
} else if (req->type == TWS_REQ_TYPE_PASSTHRU) {
device_printf(sc->tws_dev, "IOCTL Request timed out... Resetting controller\n");
} else {
device_printf(sc->tws_dev, "Internal Request timed out... Resetting controller\n");
}
tws_assert_soft_reset(sc);
tws_turn_off_interrupts(sc);
tws_reset_cb( (void*) sc );
tws_reinit( (void*) sc );
// device_printf(sc->tws_dev, "Controller Reset complete!\n");
tws_send_event(sc, TWS_RESET_COMPLETE);
mtx_unlock(&sc->gen_lock);
xpt_release_simq(sc->sim, 1);
tws_setup_intr(sc, sc->irqs);
}
