MFC 310324

    hyperv/ic: Rename cleaned up files.

    Sponsored by:   Microsoft
    Differential Revision:  https://reviews.freebsd.org/D8850

1 files changed, 167 insertions, 0 deletions

diff --git a/sys/dev/hyperv/utilities/vmbus_shutdown.c b/sys/dev/hyperv/utilities/vmbus_shutdown.c
new file mode 100644
index 0000000..7e54dc9
--- /dev/null
+++ b/sys/dev/hyperv/utilities/vmbus_shutdown.c
@@ -0,0 +1,167 @@
+/*-
+ * Copyright (c) 2014,2016 Microsoft Corp.
+ * 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 unmodified, 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 ``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 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.
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/param.h>
+#include <sys/bus.h>
+#include <sys/kernel.h>
+#include <sys/module.h>
+#include <sys/reboot.h>
+#include <sys/systm.h>
+
+#include <dev/hyperv/include/hyperv.h>
+#include <dev/hyperv/include/vmbus.h>
+#include <dev/hyperv/utilities/vmbus_icreg.h>
+#include <dev/hyperv/utilities/vmbus_icvar.h>
+
+#define VMBUS_SHUTDOWN_FWVER_MAJOR	3
+#define VMBUS_SHUTDOWN_FWVER		\
+	VMBUS_IC_VERSION(VMBUS_SHUTDOWN_FWVER_MAJOR, 0)
+
+#define VMBUS_SHUTDOWN_MSGVER_MAJOR	3
+#define VMBUS_SHUTDOWN_MSGVER		\
+	VMBUS_IC_VERSION(VMBUS_SHUTDOWN_MSGVER_MAJOR, 0)
+
+static int			vmbus_shutdown_probe(device_t);
+static int			vmbus_shutdown_attach(device_t);
+
+static const struct vmbus_ic_desc vmbus_shutdown_descs[] = {
+	{
+		.ic_guid = { .hv_guid = {
+		    0x31, 0x60, 0x0b, 0x0e, 0x13, 0x52, 0x34, 0x49,
+		    0x81, 0x8b, 0x38, 0xd9, 0x0c, 0xed, 0x39, 0xdb } },
+		.ic_desc = "Hyper-V Shutdown"
+	},
+	VMBUS_IC_DESC_END
+};
+
+static device_method_t vmbus_shutdown_methods[] = {
+	/* Device interface */
+	DEVMETHOD(device_probe,		vmbus_shutdown_probe),
+	DEVMETHOD(device_attach,	vmbus_shutdown_attach),
+	DEVMETHOD(device_detach,	vmbus_ic_detach),
+	DEVMETHOD_END
+};
+
+static driver_t vmbus_shutdown_driver = {
+	"hvshutdown",
+	vmbus_shutdown_methods,
+	sizeof(struct vmbus_ic_softc)
+};
+
+static devclass_t vmbus_shutdown_devclass;
+
+DRIVER_MODULE(hv_shutdown, vmbus, vmbus_shutdown_driver,
+    vmbus_shutdown_devclass, NULL, NULL);
+MODULE_VERSION(hv_shutdown, 1);
+MODULE_DEPEND(hv_shutdown, vmbus, 1, 1, 1);
+
+static void
+vmbus_shutdown_cb(struct vmbus_channel *chan, void *xsc)
+{
+	struct vmbus_ic_softc *sc = xsc;
+	struct vmbus_icmsg_hdr *hdr;
+	struct vmbus_icmsg_shutdown *msg;
+	int dlen, error, do_shutdown = 0;
+	uint64_t xactid;
+	void *data;
+
+	/*
+	 * Receive request.
+	 */
+	data = sc->ic_buf;
+	dlen = sc->ic_buflen;
+	error = vmbus_chan_recv(chan, data, &dlen, &xactid);
+	KASSERT(error != ENOBUFS, ("icbuf is not large enough"));
+	if (error)
+		return;
+
+	if (dlen < sizeof(*hdr)) {
+		device_printf(sc->ic_dev, "invalid data len %d\n", dlen);
+		return;
+	}
+	hdr = data;
+
+	/*
+	 * Update request, which will be echoed back as response.
+	 */
+	switch (hdr->ic_type) {
+	case VMBUS_ICMSG_TYPE_NEGOTIATE:
+		error = vmbus_ic_negomsg(sc, data, &dlen,
+		    VMBUS_SHUTDOWN_FWVER, VMBUS_SHUTDOWN_MSGVER);
+		if (error)
+			return;
+		break;
+
+	case VMBUS_ICMSG_TYPE_SHUTDOWN:
+		if (dlen < VMBUS_ICMSG_SHUTDOWN_SIZE_MIN) {
+			device_printf(sc->ic_dev, "invalid shutdown len %d\n",
+			    dlen);
+			return;
+		}
+		msg = data;
+
+		/* XXX ic_flags definition? */
+		if (msg->ic_haltflags == 0 || msg->ic_haltflags == 1) {
+			device_printf(sc->ic_dev, "shutdown requested\n");
+			hdr->ic_status = VMBUS_ICMSG_STATUS_OK;
+			do_shutdown = 1;
+		} else {
+			device_printf(sc->ic_dev, "unknown shutdown flags "
+			    "0x%08x\n", msg->ic_haltflags);
+			hdr->ic_status = VMBUS_ICMSG_STATUS_FAIL;
+		}
+		break;
+
+	default:
+		device_printf(sc->ic_dev, "got 0x%08x icmsg\n", hdr->ic_type);
+		break;
+	}
+
+	/*
+	 * Send response by echoing the request back.
+	 */
+	vmbus_ic_sendresp(sc, chan, data, dlen, xactid);
+
+	if (do_shutdown)
+		shutdown_nice(RB_POWEROFF);
+}
+
+static int
+vmbus_shutdown_probe(device_t dev)
+{
+
+	return (vmbus_ic_probe(dev, vmbus_shutdown_descs));
+}
+
+static int
+vmbus_shutdown_attach(device_t dev)
+{
+
+	return (vmbus_ic_attach(dev, vmbus_shutdown_cb));
+}