This is a driver for the AMI MegaRAID family of controllers. It all of

the AMI PCI controllers using the 8LD firmware interface (40LD firmware
will be supported as soon as I have hardware to test with).

These controllers are rebadged by Dell as the PERC, as well as by HP
and possibly other vendors.

1 files changed, 208 insertions, 0 deletions

diff --git a/sys/dev/amr/amr_pci.c b/sys/dev/amr/amr_pci.c
new file mode 100644
index 0000000..7968a32
--- /dev/null
+++ b/sys/dev/amr/amr_pci.c
@@ -0,0 +1,208 @@
+/*-
+ * Copyright (c) 1999 Michael Smith
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	$FreeBSD$
+ */
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/malloc.h>
+#include <sys/kernel.h>
+
+#include <sys/bus.h>
+#include <sys/buf.h>
+#include <sys/conf.h>
+#include <sys/devicestat.h>
+#include <sys/disk.h>
+
+#include <machine/bus_memio.h>
+#include <machine/bus_pio.h>
+#include <machine/bus.h>
+#include <machine/resource.h>
+#include <sys/rman.h>
+
+#include <pci/pcireg.h>
+#include <pci/pcivar.h>
+
+#include <dev/amr/amrio.h>
+#include <dev/amr/amrreg.h>
+#include <dev/amr/amrvar.h>
+
+#if 0
+#define debug(fmt, args...)	printf("%s: " fmt "\n", __FUNCTION__ , ##args)
+#else
+#define debug(fmt, args...)
+#endif
+
+static int			amr_pci_probe(device_t dev);
+static int			amr_pci_attach(device_t dev);
+
+static device_method_t amr_methods[] = {
+    /* Device interface */
+    DEVMETHOD(device_probe,	amr_pci_probe),
+    DEVMETHOD(device_attach,	amr_pci_attach),
+    DEVMETHOD(device_detach,	amr_detach),
+    DEVMETHOD(device_shutdown,	amr_shutdown),
+    DEVMETHOD(device_suspend,	amr_suspend),
+    DEVMETHOD(device_resume,	amr_resume),
+
+    DEVMETHOD(bus_print_child,	bus_generic_print_child),
+    DEVMETHOD(bus_driver_added,	bus_generic_driver_added),
+    { 0, 0 }
+};
+
+static driver_t amr_pci_driver = {
+	"amr",
+	amr_methods,
+	sizeof(struct amr_softc)
+};
+
+DRIVER_MODULE(amr, pci, amr_pci_driver, amr_devclass, 0, 0);
+
+static struct 
+{
+    int		vendor;
+    int		device;
+    int		flag;
+#define PROBE_SIGNATURE	(1<<0)
+} amr_device_ids[] = {
+    {0x101e, 0x9010, 0},
+    {0x101e, 0x9060, 0},
+    {0x8086, 0x1960, PROBE_SIGNATURE},	/* generic i960RD, check signature */
+    {0, 0, 0}
+};
+    
+static int
+amr_pci_probe(device_t dev)
+{
+    int		i;
+
+    debug("called");
+
+    for (i = 0; amr_device_ids[i].vendor != 0; i++) {
+	if ((pci_get_vendor(dev) == amr_device_ids[i].vendor) &&
+	    (pci_get_device(dev) == amr_device_ids[i].device)) {
+
+	    /* do we need to test for a signature? */
+	    if ((amr_device_ids[i].flag & PROBE_SIGNATURE) &&
+		(pci_read_config(dev, AMR_CFG_SIG, 2) != AMR_SIGNATURE))
+		continue;
+	    device_set_desc(dev, "AMI MegaRAID");
+	    return(0);
+	}
+    }
+    return(ENXIO);
+}
+
+static int
+amr_pci_attach(device_t dev)
+{
+    struct amr_softc	*sc;
+    int			rid, rtype, error;
+    u_int32_t		command;
+
+    debug("called");
+
+    /*
+     * Initialise softc.
+     */
+    sc = device_get_softc(dev);
+    bzero(sc, sizeof(*sc));
+    sc->amr_dev = dev;
+
+    /*
+     * Determine board type..
+     */
+    command = pci_read_config(dev, PCIR_COMMAND, 1);
+    if ((pci_get_vendor(dev) == 0x8086) && (pci_get_device(dev) == 0x1960)) {
+	sc->amr_type = AMR_TYPE_QUARTZ;
+
+	/*
+	 * Make sure we are going to be able to talk to this board.
+	 */
+	if ((command & PCIM_CMD_MEMEN) == 0) {
+	    device_printf(dev, "memory window not available\n");
+	    return(ENXIO);
+	}
+
+    } else {
+	sc->amr_type = AMR_TYPE_STD;
+
+	/*
+	 * Make sure we are going to be able to talk to this board.
+	 */
+	if ((command & PCIM_CMD_PORTEN) == 0) {
+	    device_printf(dev, "I/O window not available\n");
+	    return(ENXIO);
+	}
+    }
+
+    /*
+     * Allocate the PCI register window.
+     */
+    rid = AMR_CFG_BASE;
+    rtype = (sc->amr_type == AMR_TYPE_QUARTZ) ? SYS_RES_MEMORY : SYS_RES_IOPORT;
+    sc->amr_reg = bus_alloc_resource(dev, rtype, &rid, 0, ~0, 1, RF_ACTIVE);
+    if (sc->amr_reg == NULL) {
+	device_printf(sc->amr_dev, "couldn't allocate register window\n");
+	amr_free(sc);
+	return(ENXIO);
+    }
+    sc->amr_btag = rman_get_bustag(sc->amr_reg);
+    sc->amr_bhandle = rman_get_bushandle(sc->amr_reg);
+
+    /*
+     * Allocate the parent bus DMA tag appropriate for PCI.
+     */
+    error = bus_dma_tag_create(NULL, 			/* parent */
+			       1, 0, 			/* alignment, boundary */
+			       BUS_SPACE_MAXADDR_32BIT, /* lowaddr */
+			       BUS_SPACE_MAXADDR, 	/* highaddr */
+			       NULL, NULL, 		/* filter, filterarg */
+			       MAXBSIZE, AMR_NSEG,	/* maxsize, nsegments */
+			       BUS_SPACE_MAXSIZE_32BIT,	/* maxsegsize */
+			       BUS_DMA_ALLOCNOW,	/* flags */
+			       &sc->amr_parent_dmat);
+    if (error != 0) {
+	device_printf(dev, "can't allocate parent DMA tag\n");
+	amr_free(sc);
+	return(ENOMEM);
+    }
+
+    /*
+     * Do bus-independant initialisation.
+     */
+    error = amr_attach(sc);
+    if (error != 0) {
+	amr_free(sc);
+	return(error);
+    }
+    
+    /*
+     * Start the controller.
+     */
+    amr_startup(sc);
+    return(0);
+}