int
ida_command(struct ida_softc *ida, int command, void *data, int datasize,
int drive, u_int64_t pblkno, int flags)
{
struct ida_hardware_qcb *hwqcb;
struct ida_qcb *qcb;
bus_dmasync_op_t op;
int error;
crit_enter();
qcb = ida_get_qcb(ida);
crit_exit();
if (qcb == NULL) {
kprintf("ida_command: out of QCBs");
return (EAGAIN);
}
hwqcb = qcb->hwqcb;
bzero(hwqcb, sizeof(struct ida_hdr) + sizeof(struct ida_req));
bus_dmamap_load(ida->buffer_dmat, qcb->dmamap,
data, datasize, ida_setup_dmamap, hwqcb, 0);
op = qcb->flags & DMA_DATA_IN ?
BUS_DMASYNC_PREREAD : BUS_DMASYNC_PREWRITE;
bus_dmamap_sync(ida->buffer_dmat, qcb->dmamap, op);
hwqcb->hdr.drive = drive;
hwqcb->req.blkno = pblkno;
hwqcb->req.bcount = howmany(datasize, DEV_BSIZE);
hwqcb->req.command = command;
KKASSERT(pblkno < 0x100000000ULL);
qcb->flags = flags | IDA_COMMAND;
crit_enter();
STAILQ_INSERT_TAIL(&ida->qcb_queue, qcb, link.stqe);
ida_start(ida);
error = ida_wait(ida, qcb);
crit_exit();
/* XXX should have status returned here? */
/* XXX have "status pointer" area in QCB? */
return (error);
}
int
ida_command(struct ida_softc *ida, int command, void *data, int datasize,
int drive, u_int32_t pblkno, int flags)
{
struct ida_hardware_qcb *hwqcb;
struct ida_qcb *qcb;
int error;
if (!dumping)
mtx_assert(&ida->lock, MA_OWNED);
qcb = ida_get_qcb(ida);
if (qcb == NULL) {
device_printf(ida->dev, "out of QCBs\n");
return (EAGAIN);
}
qcb->flags = flags | IDA_COMMAND;
hwqcb = qcb->hwqcb;
hwqcb->hdr.drive = drive;
hwqcb->req.blkno = htole32(pblkno);
hwqcb->req.bcount = htole16(howmany(datasize, DEV_BSIZE));
hwqcb->req.command = command;
error = ida_map_qcb(ida, qcb, data, datasize);
if (error == 0) {
error = ida_wait(ida, qcb);
/* Don't free QCB on a timeout in case it later completes. */
if (error)
return (error);
error = qcb->error;
}
/* XXX should have status returned here? */
/* XXX have "status pointer" area in QCB? */
ida_free_qcb(ida, qcb);
return (error);
}
