add mpi(4), an alternative (replacement) driver for lsi logic fusion mpt

controllers currently supported by mpt(4).

ok marco@

1 files changed, 93 insertions, 0 deletions

diff --git a/sys/dev/ic/mpivar.h b/sys/dev/ic/mpivar.h
new file mode 100644
index 00000000000..d1a70619e71
--- /dev/null
+++ b/sys/dev/ic/mpivar.h
@@ -0,0 +1,93 @@
+/*	$OpenBSD: mpivar.h,v 1.1 2006/05/27 19:03:55 dlg Exp $ */
+
+/*
+ * Copyright (c) 2005 David Gwynne <dlg@openbsd.org>
+ * Copyright (c) 2005 Marco Peereboom <marco@openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+/* XXX */
+#define MPI_MAX_SGL		32
+
+#define MPI_REQUEST_SIZE	512
+#define MPI_REPLY_SIZE		128
+
+struct mpi_dmamem {
+	bus_dmamap_t		mdm_map;
+	bus_dma_segment_t	mdm_seg;
+	size_t			mdm_size;
+	caddr_t			mdm_kva;
+};
+#define MPI_DMA_MAP(_mdm)	((_mdm)->mdm_map)
+#define MPI_DMA_DVA(_mdm)	((_mdm)->mdm_map->dm_segs[0].ds_addr)
+#define MPI_DMA_KVA(_mdm)	((void *)(_mdm)->mdm_kva)
+
+struct mpi_ccb_bundle {
+	struct mpi_msg_scsi_io	mcb_io; /* sgl must follow */
+	struct mpi_sge32	mcb_sgl[MPI_MAX_SGL];
+	struct scsi_sense_data	mcb_sense;
+} __packed;
+
+struct mpi_softc;
+
+struct mpi_ccb {
+	struct mpi_softc	*ccb_sc;
+	int			ccb_id;
+
+	struct scsi_xfer	*ccb_xs;
+	bus_dmamap_t		ccb_dmamap;
+
+	bus_addr_t		ccb_offset;
+	void			*ccb_cmd;
+	paddr_t			ccb_cmd_dva;
+
+	volatile enum {
+		MPI_CCB_FREE,
+		MPI_CCB_READY,
+		MPI_CCB_QUEUED
+	}			ccb_state;
+	void			(*ccb_done)(struct mpi_ccb *, void *, paddr_t);
+
+	TAILQ_ENTRY(mpi_ccb)	ccb_link;
+};
+
+TAILQ_HEAD(mpi_ccb_list, mpi_ccb);
+
+struct mpi_softc {
+	struct device		sc_dev;
+	struct scsi_link	sc_link;
+
+	bus_space_tag_t		sc_iot;
+	bus_space_handle_t	sc_ioh;
+	bus_size_t		sc_ios;
+	bus_dma_tag_t		sc_dmat;
+
+	int			sc_maxcmds;
+	int			sc_maxchdepth;
+	u_int8_t		sc_porttype;
+
+	int			sc_buswidth;
+	int			sc_target;
+
+	struct mpi_dmamem	*sc_requests;
+	struct mpi_ccb		*sc_ccbs;
+	struct mpi_ccb_list	sc_ccb_free, sc_ccb_runq;
+
+	struct mpi_dmamem	*sc_replies;
+};
+
+int	mpi_attach(struct mpi_softc *);
+void	mpi_detach(struct mpi_softc *);
+
+int	mpi_intr(void *);