static void ncq_cb(void *opaque, int ret)
{
    NCQTransferState *ncq_tfs = (NCQTransferState *)opaque;
    IDEState *ide_state = &ncq_tfs->drive->port.ifs[0];

    if (ret == -ECANCELED) {
        return;
    }
    /* Clear bit for this tag in SActive */
    ncq_tfs->drive->port_regs.scr_act &= ~(1 << ncq_tfs->tag);

    if (ret < 0) {
        /* error */
        ide_state->error = ABRT_ERR;
        ide_state->status = READY_STAT | ERR_STAT;
        ncq_tfs->drive->port_regs.scr_err |= (1 << ncq_tfs->tag);
    } else {
        ide_state->status = READY_STAT | SEEK_STAT;
    }

    ahci_write_fis_sdb(ncq_tfs->drive->hba, ncq_tfs->drive->port_no,
                       (1 << ncq_tfs->tag));

    DPRINTF(ncq_tfs->drive->port_no, "NCQ transfer tag %d finished\n",
            ncq_tfs->tag);

    block_acct_done(blk_get_stats(ncq_tfs->drive->port.ifs[0].blk),
                    &ncq_tfs->acct);
    qemu_sglist_destroy(&ncq_tfs->sglist);
    ncq_tfs->used = 0;
}
static void ncq_cb(void *opaque, int ret)
{
    NCQTransferState *ncq_tfs = (NCQTransferState *)opaque;
    IDEState *ide_state = &ncq_tfs->drive->port.ifs[0];

    if (ret == -ECANCELED) {
        return;
    }
     
    ncq_tfs->drive->port_regs.scr_act &= ~(1 << ncq_tfs->tag);

    if (ret < 0) {
         
        ide_state->error = ABRT_ERR;
        ide_state->status = READY_STAT | ERR_STAT;
        ncq_tfs->drive->port_regs.scr_err |= (1 << ncq_tfs->tag);
    } else {
        ide_state->status = READY_STAT | SEEK_STAT;
    }

    ahci_write_fis_sdb(ncq_tfs->drive->hba, ncq_tfs->drive->port_no,
                       (1 << ncq_tfs->tag));

    DPRINTF(ncq_tfs->drive->port_no, "NCQ transfer tag %d finished\n",
            ncq_tfs->tag);

    block_acct_done(blk_get_stats(ncq_tfs->drive->port.ifs[0].blk),
                    &ncq_tfs->acct);
    qemu_sglist_destroy(&ncq_tfs->sglist);
    ncq_tfs->used = 0;
}