void
tws_reset(void *arg)
{
struct tws_softc *sc = (struct tws_softc *)arg;
if ( tws_get_state(sc) == TWS_RESET ) {
return;
}
device_printf(sc->tws_dev, "Resetting controller\n");
lockmgr(&sc->gen_lock, LK_EXCLUSIVE);
tws_send_event(sc, TWS_RESET_START);
lockmgr(&sc->gen_lock, LK_RELEASE);
tws_turn_off_interrupts(sc);
lockmgr(&sc->sim_lock, LK_EXCLUSIVE);
tws_freeze_simq(sc);
lockmgr(&sc->sim_lock, LK_RELEASE);
tws_assert_soft_reset(sc);
callout_reset(&sc->reset_cb_handle, hz/10, tws_reset_cb, sc);
}
int32_t
tws_map_request(struct tws_softc *sc, struct tws_request *req)
{
int32_t error = 0;
/* If the command involves data, map that too. */
if (req->data != NULL) {
int my_flags = ((req->type == TWS_REQ_TYPE_SCSI_IO) ? BUS_DMA_WAITOK : BUS_DMA_NOWAIT);
/*
* Map the data buffer into bus space and build the SG list.
*/
mtx_lock(&sc->io_lock);
if (req->flags & TWS_DATA_CCB)
error = bus_dmamap_load_ccb(sc->data_tag, req->dma_map,
req->data,
tws_dmamap_data_load_cbfn, req,
my_flags);
else
error = bus_dmamap_load(sc->data_tag, req->dma_map,
req->data, req->length,
tws_dmamap_data_load_cbfn, req,
my_flags);
mtx_unlock(&sc->io_lock);
if (error == EINPROGRESS) {
TWS_TRACE(sc, "in progress", 0, error);
tws_freeze_simq(sc, req);
error = 0; // EINPROGRESS is not a fatal error.
}
} else { /* no data involved */
error = tws_submit_command(sc, req);
}
return(error);
}
