/*
* Read/write routine for a buffer. Finds the proper unit, range checks
* arguments, and schedules the transfer. Does not wait for the transfer
* to complete. Multi-page transfers are supported. All I/O requests must
* be a multiple of a sector in length.
*/
static void
mlxd_strategy(struct bio *bp)
{
struct mlxd_softc *sc = bp->bio_disk->d_drv1;
debug_called(1);
/* bogus disk? */
if (sc == NULL) {
bp->bio_error = EINVAL;
bp->bio_flags |= BIO_ERROR;
goto bad;
}
/* XXX may only be temporarily offline - sleep? */
MLX_IO_LOCK(sc->mlxd_controller);
if (sc->mlxd_drive->ms_state == MLX_SYSD_OFFLINE) {
MLX_IO_UNLOCK(sc->mlxd_controller);
bp->bio_error = ENXIO;
bp->bio_flags |= BIO_ERROR;
goto bad;
}
mlx_submit_buf(sc->mlxd_controller, bp);
MLX_IO_UNLOCK(sc->mlxd_controller);
return;
bad:
/*
* Correctly set the bio to indicate a failed tranfer.
*/
bp->bio_resid = bp->bio_bcount;
biodone(bp);
return;
}
/*
* Read/write routine for a buffer. Finds the proper unit, range checks
* arguments, and schedules the transfer. Does not wait for the transfer
* to complete. Multi-page transfers are supported. All I/O requests must
* be a multiple of a sector in length.
*/
static void
mlxd_strategy(mlx_bio *bp)
{
struct mlxd_softc *sc = (struct mlxd_softc *)MLX_BIO_SOFTC(bp);
debug_called(1);
/* bogus disk? */
if (sc == NULL) {
MLX_BIO_SET_ERROR(bp, EINVAL);
goto bad;
}
/* XXX may only be temporarily offline - sleep? */
if (sc->mlxd_drive->ms_state == MLX_SYSD_OFFLINE) {
MLX_BIO_SET_ERROR(bp, ENXIO);
goto bad;
}
MLX_BIO_STATS_START(bp);
mlx_submit_buf(sc->mlxd_controller, bp);
return;
bad:
/*
* Correctly set the bio to indicate a failed tranfer.
*/
MLX_BIO_RESID(bp) = MLX_BIO_LENGTH(bp);
MLX_BIO_DONE(bp);
return;
}