Add skeleton driver for MegaRAID SAS.

1 files changed, 138 insertions, 0 deletions

diff --git a/sys/dev/pci/mfi_pci.c b/sys/dev/pci/mfi_pci.c
new file mode 100644
index 00000000000..9b4ddebd04b
--- /dev/null
+++ b/sys/dev/pci/mfi_pci.c
@@ -0,0 +1,138 @@
+/* $OpenBSD: mfi_pci.c,v 1.1 2006/04/06 20:22:53 marco Exp $ */
+/*
+ * Copyright (c) 2006 Marco Peereboom <marco@peereboom.us>
+ *
+ * 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.
+ */
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/kernel.h>
+#include <sys/malloc.h>
+#include <sys/device.h>
+
+#include <dev/pci/pcidevs.h>
+#include <dev/pci/pcivar.h>
+
+#include <machine/bus.h>
+
+#include <scsi/scsi_all.h>
+#include <scsi/scsi_disk.h>
+#include <scsi/scsiconf.h>
+
+#include <dev/ic/mfireg.h>
+#include <dev/ic/mfivar.h>
+
+#define	MFI_BAR		0x10
+#define	MFI_PCI_MEMSIZE	0x2000 /* 8k */
+
+int	mfi_pci_find_device(void *);
+int	mfi_pci_match(struct device *, void *, void *);
+void	mfi_pci_attach(struct device *, struct device *, void *);
+
+struct cfattach mfi_pci_ca = {
+	sizeof(struct mfi_softc), mfi_pci_match, mfi_pci_attach
+};
+
+static const
+struct	mfi_pci_device {
+	pcireg_t	mpd_vendor;
+	pcireg_t	mpd_product;
+	u_int32_t	mpd_flags;
+} mfi_pci_devices[] = {
+	{ PCI_VENDOR_SYMBIOS,	PCI_PRODUCT_SYMBIOS_MSAS,		0 },
+	{ PCI_VENDOR_DELL,	PCI_PRODUCT_DELL_PERC5I	,		0 },
+	{ 0 }
+};
+
+int
+mfi_pci_find_device(void *aux) {
+	struct pci_attach_args	*pa = aux;
+	int			i;
+
+	for (i = 0; mfi_pci_devices[i].mpd_vendor; i++) {
+		if (mfi_pci_devices[i].mpd_vendor == PCI_VENDOR(pa->pa_id) &&
+		    mfi_pci_devices[i].mpd_product == PCI_PRODUCT(pa->pa_id)) {
+#ifdef MFI_DEBUG
+		    	printf("mfi_pci_find_device: %i\n", i);
+#endif /* MFI_DEBUG */
+			return (i);
+		}
+	}
+
+	return (-1);
+}
+
+int
+mfi_pci_match(struct device *parent, void *match, void *aux)
+{
+	int			i;
+
+	if ((i = mfi_pci_find_device(aux)) != -1) {
+#ifdef MFI_DEBUG
+		printf("mfi_pci_match: vendor: %04x  product: %04x\n",
+		    mfi_pci_devices[i].mpd_vendor,
+		    mfi_pci_devices[i].mpd_product);
+#endif /* MFI_DEBUG */
+
+		return (1);
+	}
+
+	return (0);
+}
+
+void
+mfi_pci_attach(struct device *parent, struct device *self, void *aux)
+{
+	struct mfi_softc	*sc = (struct mfi_softc *)self;
+	struct pci_attach_args	*pa = aux;
+	const char		*intrstr;
+	pci_intr_handle_t	ih;
+	bus_size_t		size;
+	pcireg_t		csr;
+
+	csr = pci_mapreg_type(pa->pa_pc, pa->pa_tag, MFI_BAR);
+	csr |= PCI_MAPREG_MEM_TYPE_32BIT;
+	if (pci_mapreg_map(pa, MFI_BAR, csr, 0,
+	    &sc->sc_iot, &sc->sc_ioh, NULL, &size, MFI_PCI_MEMSIZE)) {
+		printf(": can't map controller pci space\n");
+		return;
+	}
+
+	sc->sc_dmat = pa->pa_dmat;
+
+	if (pci_intr_map(pa, &ih)) {
+		printf(": can't map interrupt\n");
+		bus_space_unmap(sc->sc_iot, sc->sc_ioh, size);
+		return;
+	}
+	intrstr = pci_intr_string(pa->pa_pc, ih);
+	sc->sc_ih = pci_intr_establish(pa->pa_pc, ih, IPL_BIO, mfi_intr, sc,
+	    sc->sc_dev.dv_xname);
+	if (!sc->sc_ih) {
+		printf(": can't establish interrupt");
+		if (intrstr)
+			printf(" at %s", intrstr);
+		printf("\n");
+		bus_space_unmap(sc->sc_iot, sc->sc_ioh, size);
+		return;
+	}
+
+	printf(": %s\n", intrstr);
+
+	if (mfi_attach(sc)) {
+		pci_intr_disestablish(pa->pa_pc, sc->sc_ih);
+		sc->sc_ih = NULL;
+		bus_space_unmap(sc->sc_iot, sc->sc_ioh, size);
+	}
+}