# HG changeset patch
# User Saso Kiselkov <skiselkov@gmail.com>
# Date 1365803382 14400
# Node ID 626936c65627e096e8709f94bf09b96e3e0ce0df
# Parent  1a1202688ff3424ac60497e6c80f17cb5a97d1e4
3708 Fast reboot support in ixgbe
Reviewed by: Garrett D'Amore <garrett@damore.org>
Reviewed by: Richard Lowe <richlowe@richlowe.net>
Approved by: Dan McDonald <danmcd@nexenta.com>

diff -r 1a1202688ff3 -r 626936c65627 usr/src/uts/common/io/ixgbe/ixgbe_main.c
--- a/usr/src/uts/common/io/ixgbe/ixgbe_main.c	Fri Apr 12 15:07:53 2013 -0400
+++ b/usr/src/uts/common/io/ixgbe/ixgbe_main.c	Fri Apr 12 17:49:42 2013 -0400
@@ -28,6 +28,7 @@
  * Copyright (c) 2012, Joyent, Inc. All rights reserved.
  * Copyright 2012 Nexenta Systems, Inc. All rights reserved.
  * Copyright (c) 2013 Saso Kiselkov. All rights reserved.
+ * Copyright (c) 2013 OSN Online Service Nuernberg GmbH. All rights reserved.
  */
 
 #include "ixgbe_sw.h"
@@ -116,6 +117,7 @@
 static int ixgbe_detach(dev_info_t *, ddi_detach_cmd_t);
 static int ixgbe_resume(dev_info_t *);
 static int ixgbe_suspend(dev_info_t *);
+static int ixgbe_quiesce(dev_info_t *);
 static void ixgbe_unconfigure(dev_info_t *, ixgbe_t *);
 static uint8_t *ixgbe_mc_table_itr(struct ixgbe_hw *, uint8_t **, uint32_t *);
 static int ixgbe_cbfunc(dev_info_t *, ddi_cb_action_t, void *, void *, void *);
@@ -176,7 +178,7 @@
 	&ixgbe_cb_ops,		/* devo_cb_ops */
 	NULL,			/* devo_bus_ops */
 	ddi_power,		/* devo_power */
-	ddi_quiesce_not_supported,	/* devo_quiesce */
+	ixgbe_quiesce,		/* devo_quiesce */
 };
 
 static struct modldrv ixgbe_modldrv = {
@@ -684,6 +686,52 @@
 	return (DDI_SUCCESS);
 }
 
+/*
+ * quiesce(9E) entry point.
+ *
+ * This function is called when the system is single-threaded at high
+ * PIL with preemption disabled. Therefore, this function must not be
+ * blocked.
+ *
+ * This function returns DDI_SUCCESS on success, or DDI_FAILURE on failure.
+ * DDI_FAILURE indicates an error condition and should almost never happen.
+ */
+static int
+ixgbe_quiesce(dev_info_t *devinfo)
+{
+	ixgbe_t *ixgbe;
+	struct ixgbe_hw *hw;
+
+	ixgbe = (ixgbe_t *)ddi_get_driver_private(devinfo);
+
+	if (ixgbe == NULL)
+		return (DDI_FAILURE);
+
+	hw = &ixgbe->hw;
+
+	/*
+	 * Disable the adapter interrupts
+	 */
+	ixgbe_disable_adapter_interrupts(ixgbe);
+
+	/*
+	 * Tell firmware driver is no longer in control
+	 */
+	ixgbe_release_driver_control(hw);
+
+	/*
+	 * Reset the chipset
+	 */
+	(void) ixgbe_reset_hw(hw);
+
+	/*
+	 * Reset PHY
+	 */
+	(void) ixgbe_reset_phy(hw);
+
+	return (DDI_SUCCESS);
+}
+
 static void
 ixgbe_unconfigure(dev_info_t *devinfo, ixgbe_t *ixgbe)
 {