static void
tws_intr_attn_error(struct tws_softc *sc)
{
u_int32_t db=0;
TWS_TRACE(sc, "attn error", 0, 0);
tws_write_reg(sc, TWS_I2O0_HOBDBC, ~0, 4);
db = tws_read_reg(sc, TWS_I2O0_IOBDB, 4);
device_printf(sc->tws_dev, "Micro controller error.\n");
tws_reset(sc);
}
static void
tws_timeout(void *arg)
{
struct tws_request *req = (struct tws_request *)arg;
struct tws_softc *sc = req->sc;
if ( tws_get_state(sc) != TWS_RESET ) {
device_printf(sc->tws_dev, "Request timed out.\n");
tws_reset(sc);
}
}
static int
tws_passthru(struct tws_softc *sc, void *buf)
{
struct tws_request *req;
struct tws_ioctl_no_data_buf *ubuf = (struct tws_ioctl_no_data_buf *)buf;
int error;
u_int16_t lun4;
if ( tws_get_state(sc) == TWS_RESET ) {
return(EBUSY);
}
do {
req = tws_get_request(sc, TWS_PASSTHRU_REQ);
if ( !req ) {
sc->chan = 1;
error = tsleep((void *)&sc->chan, 0,
"tws_sleep", TWS_IO_TIMEOUT*hz);
if ( error == EWOULDBLOCK ) {
return(ETIMEDOUT);
}
} else {
break;
}
}while(1);
req->length = ubuf->driver_pkt.buffer_length;
TWS_TRACE_DEBUG(sc, "datal,rid", req->length, req->request_id);
if ( req->length ) {
req->data = kmalloc(req->length, M_TWS, M_WAITOK | M_ZERO);
error = copyin(ubuf->pdata, req->data, req->length);
}
req->flags = TWS_DIR_IN | TWS_DIR_OUT;
req->cb = tws_passthru_complete;
memcpy(&req->cmd_pkt->cmd, &ubuf->cmd_pkt.cmd,
sizeof(struct tws_command_apache));
if ( GET_OPCODE(req->cmd_pkt->cmd.pkt_a.res__opcode) ==
TWS_FW_CMD_EXECUTE_SCSI ) {
lun4 = req->cmd_pkt->cmd.pkt_a.lun_l4__req_id & 0xF000;
req->cmd_pkt->cmd.pkt_a.lun_l4__req_id = lun4 | req->request_id;
} else {
req->cmd_pkt->cmd.pkt_g.generic.request_id = (u_int8_t) req->request_id;
}
lockmgr(&sc->gen_lock, LK_EXCLUSIVE);
req->error_code = tws_map_request(sc, req);
error = lksleep(req, &sc->gen_lock, 0, "tws_passthru", TWS_IO_TIMEOUT*hz);
if ( error == EWOULDBLOCK ) {
error = ETIMEDOUT;
TWS_TRACE_DEBUG(sc, "lksleep timeout", error, req->request_id);
tws_reset((void *)sc);
}
if ( req->error_code == TWS_REQ_REQUEUE ) {
error = EBUSY;
}
tws_unmap_request(sc, req);
memcpy(&ubuf->cmd_pkt.hdr, &req->cmd_pkt->hdr, sizeof(struct tws_command_apache));
memcpy(&ubuf->cmd_pkt.cmd, &req->cmd_pkt->cmd, sizeof(struct tws_command_apache));
if ( !error && req->length ) {
error = copyout(req->data, ubuf->pdata, req->length);
}
kfree(req->data, M_TWS);
req->state = TWS_REQ_STATE_FREE;
lockmgr(&sc->gen_lock, LK_RELEASE);
if ( error )
TWS_TRACE_DEBUG(sc, "errored", error, 0);
if ( req->error_code != TWS_REQ_SUBMIT_SUCCESS )
ubuf->driver_pkt.os_status = error;
if ( sc->chan && tws_get_state(sc) != TWS_RESET ) {
sc->chan = 0;
wakeup((void *)&sc->chan);
}
return(error);
}
