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@@ -1,5 +1,4 @@
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/*
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- *
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* Copyright (c) 2009, Microsoft Corporation.
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*
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* This program is free software; you can redistribute it and/or modify it
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@@ -18,18 +17,13 @@
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* Authors:
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* Haiyang Zhang <haiyangz@microsoft.com>
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* Hank Janssen <hjanssen@microsoft.com>
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- *
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*/
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-
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-
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#include <linux/kernel.h>
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#include <linux/mm.h>
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#include "osd.h"
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#include "logging.h"
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#include "VmbusPrivate.h"
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-/* Data types */
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-
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typedef void (*PFN_CHANNEL_MESSAGE_HANDLER)(struct vmbus_channel_message_header *msg);
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struct vmbus_channel_message_table_entry {
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@@ -37,23 +31,20 @@ struct vmbus_channel_message_table_entry {
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PFN_CHANNEL_MESSAGE_HANDLER messageHandler;
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};
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-/* Internal routines */
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-static void VmbusChannelOnOffer(struct vmbus_channel_message_header *hdr);
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-static void VmbusChannelOnOpenResult(struct vmbus_channel_message_header *hdr);
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-static void VmbusChannelOnOfferRescind(struct vmbus_channel_message_header *hdr);
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-static void VmbusChannelOnGpadlCreated(struct vmbus_channel_message_header *hdr);
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-static void VmbusChannelOnGpadlTorndown(struct vmbus_channel_message_header *hdr);
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-static void VmbusChannelOnOffersDelivered(struct vmbus_channel_message_header *hdr);
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-static void VmbusChannelOnVersionResponse(struct vmbus_channel_message_header *hdr);
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-static void VmbusChannelProcessOffer(void * context);
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-static void VmbusChannelProcessRescindOffer(void * context);
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+static void VmbusChannelOnOffer(struct vmbus_channel_message_header *);
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+static void VmbusChannelOnOpenResult(struct vmbus_channel_message_header *);
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+static void VmbusChannelOnOfferRescind(struct vmbus_channel_message_header *);
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+static void VmbusChannelOnGpadlCreated(struct vmbus_channel_message_header *);
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+static void VmbusChannelOnGpadlTorndown(struct vmbus_channel_message_header *);
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+static void VmbusChannelOnOffersDelivered(struct vmbus_channel_message_header *);
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+static void VmbusChannelOnVersionResponse(struct vmbus_channel_message_header *);
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+static void VmbusChannelProcessOffer(void *context);
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+static void VmbusChannelProcessRescindOffer(void *context);
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-/* Globals */
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-
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#define MAX_NUM_DEVICE_CLASSES_SUPPORTED 4
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-
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-static const struct hv_guid gSupportedDeviceClasses[MAX_NUM_DEVICE_CLASSES_SUPPORTED] = {
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+static const struct hv_guid
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+ gSupportedDeviceClasses[MAX_NUM_DEVICE_CLASSES_SUPPORTED] = {
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/* {ba6163d9-04a1-4d29-b605-72e2ffb1dc7f} */
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/* Storage - SCSI */
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{
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@@ -92,44 +83,37 @@ static const struct hv_guid gSupportedDeviceClasses[MAX_NUM_DEVICE_CLASSES_SUPPO
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};
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/* Channel message dispatch table */
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-static struct vmbus_channel_message_table_entry gChannelMessageTable[ChannelMessageCount]= {
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- {ChannelMessageInvalid, NULL},
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- {ChannelMessageOfferChannel, VmbusChannelOnOffer},
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- {ChannelMessageRescindChannelOffer, VmbusChannelOnOfferRescind},
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- {ChannelMessageRequestOffers, NULL},
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- {ChannelMessageAllOffersDelivered, VmbusChannelOnOffersDelivered},
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- {ChannelMessageOpenChannel, NULL},
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- {ChannelMessageOpenChannelResult, VmbusChannelOnOpenResult},
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- {ChannelMessageCloseChannel, NULL},
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- {ChannelMessageGpadlHeader, NULL},
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- {ChannelMessageGpadlBody, NULL},
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- {ChannelMessageGpadlCreated, VmbusChannelOnGpadlCreated},
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- {ChannelMessageGpadlTeardown, NULL},
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- {ChannelMessageGpadlTorndown, VmbusChannelOnGpadlTorndown},
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- {ChannelMessageRelIdReleased, NULL},
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- {ChannelMessageInitiateContact, NULL},
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- {ChannelMessageVersionResponse, VmbusChannelOnVersionResponse},
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- {ChannelMessageUnload, NULL},
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+static struct vmbus_channel_message_table_entry
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+ gChannelMessageTable[ChannelMessageCount] = {
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+ {ChannelMessageInvalid, NULL},
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+ {ChannelMessageOfferChannel, VmbusChannelOnOffer},
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+ {ChannelMessageRescindChannelOffer, VmbusChannelOnOfferRescind},
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+ {ChannelMessageRequestOffers, NULL},
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+ {ChannelMessageAllOffersDelivered, VmbusChannelOnOffersDelivered},
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+ {ChannelMessageOpenChannel, NULL},
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+ {ChannelMessageOpenChannelResult, VmbusChannelOnOpenResult},
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+ {ChannelMessageCloseChannel, NULL},
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+ {ChannelMessageGpadlHeader, NULL},
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+ {ChannelMessageGpadlBody, NULL},
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+ {ChannelMessageGpadlCreated, VmbusChannelOnGpadlCreated},
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+ {ChannelMessageGpadlTeardown, NULL},
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+ {ChannelMessageGpadlTorndown, VmbusChannelOnGpadlTorndown},
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+ {ChannelMessageRelIdReleased, NULL},
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+ {ChannelMessageInitiateContact, NULL},
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+ {ChannelMessageVersionResponse, VmbusChannelOnVersionResponse},
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+ {ChannelMessageUnload, NULL},
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};
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-/*++
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-
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-Name:
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- AllocVmbusChannel()
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-
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-Description:
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- Allocate and initialize a vmbus channel object
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-
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---*/
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+/**
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+ * AllocVmbusChannel - Allocate and initialize a vmbus channel object
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+ */
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struct vmbus_channel *AllocVmbusChannel(void)
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{
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struct vmbus_channel *channel;
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channel = kzalloc(sizeof(*channel), GFP_ATOMIC);
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if (!channel)
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- {
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return NULL;
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- }
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spin_lock_init(&channel->inbound_lock);
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@@ -137,10 +121,8 @@ struct vmbus_channel *AllocVmbusChannel(void)
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channel->poll_timer.data = (unsigned long)channel;
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channel->poll_timer.function = VmbusChannelOnTimer;
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- /* channel->dataWorkQueue = WorkQueueCreate("data"); */
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channel->ControlWQ = create_workqueue("hv_vmbus_ctl");
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- if (!channel->ControlWQ)
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- {
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+ if (!channel->ControlWQ) {
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kfree(channel);
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return NULL;
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}
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@@ -148,18 +130,12 @@ struct vmbus_channel *AllocVmbusChannel(void)
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return channel;
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}
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-/*++
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-
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-Name:
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- ReleaseVmbusChannel()
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-
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-Description:
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- Release the vmbus channel object itself
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-
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---*/
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-static inline void ReleaseVmbusChannel(void* Context)
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+/**
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+ * ReleaseVmbusChannel - Release the vmbus channel object itself
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+ */
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+static inline void ReleaseVmbusChannel(void *context)
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{
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- struct vmbus_channel *channel = Context;
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+ struct vmbus_channel *channel = context;
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DPRINT_ENTER(VMBUS);
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@@ -172,46 +148,33 @@ static inline void ReleaseVmbusChannel(void* Context)
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DPRINT_EXIT(VMBUS);
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}
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-/*++
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-
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-Name:
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- FreeVmbusChannel()
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-
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-Description:
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- Release the resources used by the vmbus channel object
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-
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---*/
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+/**
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+ * FreeVmbusChannel - Release the resources used by the vmbus channel object
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+ */
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void FreeVmbusChannel(struct vmbus_channel *Channel)
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{
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del_timer(&Channel->poll_timer);
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- /* We have to release the channel's workqueue/thread in the vmbus's workqueue/thread context */
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- /* ie we can't destroy ourselves. */
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+ /*
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+ * We have to release the channel's workqueue/thread in the vmbus's
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+ * workqueue/thread context
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+ * ie we can't destroy ourselves.
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+ */
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osd_schedule_callback(gVmbusConnection.WorkQueue, ReleaseVmbusChannel,
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- (void *)Channel);
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+ Channel);
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}
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-
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-/*++
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-
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-Name:
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- VmbusChannelProcessOffer()
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-
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-Description:
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- Process the offer by creating a channel/device associated with this offer
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-
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---*/
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-static void
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-VmbusChannelProcessOffer(
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- void * context
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- )
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+/**
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+ * VmbusChannelProcessOffer - Process the offer by creating a channel/device associated with this offer
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+ */
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+static void VmbusChannelProcessOffer(void *context)
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{
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- int ret=0;
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struct vmbus_channel *newChannel = context;
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struct vmbus_channel *channel;
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- LIST_ENTRY* anchor;
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- LIST_ENTRY* curr;
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+ LIST_ENTRY *anchor;
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+ LIST_ENTRY *curr;
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bool fNew = true;
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+ int ret;
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unsigned long flags;
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DPRINT_ENTER(VMBUS);
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@@ -219,61 +182,65 @@ VmbusChannelProcessOffer(
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/* Make sure this is a new offer */
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spin_lock_irqsave(&gVmbusConnection.channel_lock, flags);
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- ITERATE_LIST_ENTRIES(anchor, curr, &gVmbusConnection.ChannelList)
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- {
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- channel = CONTAINING_RECORD(curr, struct vmbus_channel, ListEntry);
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+ ITERATE_LIST_ENTRIES(anchor, curr, &gVmbusConnection.ChannelList) {
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+ channel = CONTAINING_RECORD(curr, struct vmbus_channel,
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+ ListEntry);
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- if (!memcmp(&channel->OfferMsg.Offer.InterfaceType, &newChannel->OfferMsg.Offer.InterfaceType,sizeof(struct hv_guid)) &&
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- !memcmp(&channel->OfferMsg.Offer.InterfaceInstance, &newChannel->OfferMsg.Offer.InterfaceInstance, sizeof(struct hv_guid)))
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- {
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+ if (!memcmp(&channel->OfferMsg.Offer.InterfaceType,
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+ &newChannel->OfferMsg.Offer.InterfaceType,
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+ sizeof(struct hv_guid)) &&
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+ !memcmp(&channel->OfferMsg.Offer.InterfaceInstance,
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+ &newChannel->OfferMsg.Offer.InterfaceInstance,
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+ sizeof(struct hv_guid))) {
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fNew = false;
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break;
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}
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}
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if (fNew)
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- {
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- INSERT_TAIL_LIST(&gVmbusConnection.ChannelList, &newChannel->ListEntry);
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- }
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+ INSERT_TAIL_LIST(&gVmbusConnection.ChannelList,
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+ &newChannel->ListEntry);
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+
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spin_unlock_irqrestore(&gVmbusConnection.channel_lock, flags);
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- if (!fNew)
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- {
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- DPRINT_DBG(VMBUS, "Ignoring duplicate offer for relid (%d)", newChannel->OfferMsg.ChildRelId);
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+ if (!fNew) {
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+ DPRINT_DBG(VMBUS, "Ignoring duplicate offer for relid (%d)",
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+ newChannel->OfferMsg.ChildRelId);
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FreeVmbusChannel(newChannel);
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DPRINT_EXIT(VMBUS);
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return;
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}
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- /* Start the process of binding this offer to the driver */
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- /* We need to set the DeviceObject field before calling VmbusChildDeviceAdd() */
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+ /*
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+ * Start the process of binding this offer to the driver
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+ * We need to set the DeviceObject field before calling
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+ * VmbusChildDeviceAdd()
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+ */
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newChannel->DeviceObject = VmbusChildDeviceCreate(
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&newChannel->OfferMsg.Offer.InterfaceType,
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&newChannel->OfferMsg.Offer.InterfaceInstance,
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newChannel);
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- DPRINT_DBG(VMBUS, "child device object allocated - %p", newChannel->DeviceObject);
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+ DPRINT_DBG(VMBUS, "child device object allocated - %p",
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+ newChannel->DeviceObject);
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/*
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* Add the new device to the bus. This will kick off device-driver
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* binding which eventually invokes the device driver's AddDevice()
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* method.
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*/
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-
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ret = VmbusChildDeviceAdd(newChannel->DeviceObject);
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- if (ret != 0)
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- {
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- DPRINT_ERR(VMBUS, "unable to add child device object (relid %d)",
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- newChannel->OfferMsg.ChildRelId);
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+ if (ret != 0) {
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+ DPRINT_ERR(VMBUS,
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+ "unable to add child device object (relid %d)",
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+ newChannel->OfferMsg.ChildRelId);
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spin_lock_irqsave(&gVmbusConnection.channel_lock, flags);
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REMOVE_ENTRY_LIST(&newChannel->ListEntry);
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spin_unlock_irqrestore(&gVmbusConnection.channel_lock, flags);
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FreeVmbusChannel(newChannel);
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- }
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- else
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- {
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+ } else {
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/*
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* This state is used to indicate a successful open
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* so that when we do close the channel normally, we
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@@ -284,99 +251,91 @@ VmbusChannelProcessOffer(
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DPRINT_EXIT(VMBUS);
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}
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-/*++
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-
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-Name:
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- VmbusChannelProcessRescindOffer()
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-
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-Description:
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- Rescind the offer by initiating a device removal
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-
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---*/
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-static void
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-VmbusChannelProcessRescindOffer(
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- void * context
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- )
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+/**
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+ * VmbusChannelProcessRescindOffer - Rescind the offer by initiating a device removal
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+ */
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+static void VmbusChannelProcessRescindOffer(void *context)
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{
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struct vmbus_channel *channel = context;
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DPRINT_ENTER(VMBUS);
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-
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VmbusChildDeviceRemove(channel->DeviceObject);
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-
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DPRINT_EXIT(VMBUS);
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}
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-
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-/*++
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-
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-Name:
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- VmbusChannelOnOffer()
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-
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-Description:
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- Handler for channel offers from vmbus in parent partition. We ignore all offers except
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- network and storage offers. For each network and storage offers, we create a channel object
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- and queue a work item to the channel object to process the offer synchronously
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-
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---*/
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+/**
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+ * VmbusChannelOnOffer - Handler for channel offers from vmbus in parent partition.
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+ *
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+ * We ignore all offers except network and storage offers. For each network and
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+ * storage offers, we create a channel object and queue a work item to the
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+ * channel object to process the offer synchronously
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+ */
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static void VmbusChannelOnOffer(struct vmbus_channel_message_header *hdr)
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{
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- struct vmbus_channel_offer_channel *offer = (struct vmbus_channel_offer_channel *)hdr;
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+ struct vmbus_channel_offer_channel *offer;
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struct vmbus_channel *newChannel;
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-
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struct hv_guid *guidType;
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struct hv_guid *guidInstance;
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int i;
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- int fSupported=0;
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+ int fSupported = 0;
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DPRINT_ENTER(VMBUS);
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- for (i=0; i<MAX_NUM_DEVICE_CLASSES_SUPPORTED; i++)
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- {
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- if (memcmp(&offer->Offer.InterfaceType, &gSupportedDeviceClasses[i], sizeof(struct hv_guid)) == 0)
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- {
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+ offer = (struct vmbus_channel_offer_channel *)hdr;
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+ for (i = 0; i < MAX_NUM_DEVICE_CLASSES_SUPPORTED; i++) {
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+ if (memcmp(&offer->Offer.InterfaceType,
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+ &gSupportedDeviceClasses[i], sizeof(struct hv_guid)) == 0) {
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fSupported = 1;
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break;
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}
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}
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- if (!fSupported)
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- {
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- DPRINT_DBG(VMBUS, "Ignoring channel offer notification for child relid %d", offer->ChildRelId);
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+ if (!fSupported) {
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+ DPRINT_DBG(VMBUS, "Ignoring channel offer notification for "
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+ "child relid %d", offer->ChildRelId);
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DPRINT_EXIT(VMBUS);
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-
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return;
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}
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guidType = &offer->Offer.InterfaceType;
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guidInstance = &offer->Offer.InterfaceInstance;
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- DPRINT_INFO(VMBUS, "Channel offer notification - child relid %d monitor id %d allocated %d, "
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- "type {%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x%02x%02x} "
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|
|
- "instance {%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x%02x%02x}",
|
|
|
- offer->ChildRelId,
|
|
|
- offer->MonitorId,
|
|
|
- offer->MonitorAllocated,
|
|
|
- guidType->data[3], guidType->data[2], guidType->data[1], guidType->data[0],
|
|
|
- guidType->data[5], guidType->data[4], guidType->data[7], guidType->data[6],
|
|
|
- guidType->data[8], guidType->data[9], guidType->data[10], guidType->data[11],
|
|
|
- guidType->data[12], guidType->data[13], guidType->data[14], guidType->data[15],
|
|
|
- guidInstance->data[3], guidInstance->data[2], guidInstance->data[1], guidInstance->data[0],
|
|
|
- guidInstance->data[5], guidInstance->data[4], guidInstance->data[7], guidInstance->data[6],
|
|
|
- guidInstance->data[8], guidInstance->data[9], guidInstance->data[10], guidInstance->data[11],
|
|
|
- guidInstance->data[12], guidInstance->data[13], guidInstance->data[14], guidInstance->data[15]);
|
|
|
+ DPRINT_INFO(VMBUS, "Channel offer notification - "
|
|
|
+ "child relid %d monitor id %d allocated %d, "
|
|
|
+ "type {%02x%02x%02x%02x-%02x%02x-%02x%02x-"
|
|
|
+ "%02x%02x%02x%02x%02x%02x%02x%02x} "
|
|
|
+ "instance {%02x%02x%02x%02x-%02x%02x-%02x%02x-"
|
|
|
+ "%02x%02x%02x%02x%02x%02x%02x%02x}",
|
|
|
+ offer->ChildRelId, offer->MonitorId,
|
|
|
+ offer->MonitorAllocated,
|
|
|
+ guidType->data[3], guidType->data[2],
|
|
|
+ guidType->data[1], guidType->data[0],
|
|
|
+ guidType->data[5], guidType->data[4],
|
|
|
+ guidType->data[7], guidType->data[6],
|
|
|
+ guidType->data[8], guidType->data[9],
|
|
|
+ guidType->data[10], guidType->data[11],
|
|
|
+ guidType->data[12], guidType->data[13],
|
|
|
+ guidType->data[14], guidType->data[15],
|
|
|
+ guidInstance->data[3], guidInstance->data[2],
|
|
|
+ guidInstance->data[1], guidInstance->data[0],
|
|
|
+ guidInstance->data[5], guidInstance->data[4],
|
|
|
+ guidInstance->data[7], guidInstance->data[6],
|
|
|
+ guidInstance->data[8], guidInstance->data[9],
|
|
|
+ guidInstance->data[10], guidInstance->data[11],
|
|
|
+ guidInstance->data[12], guidInstance->data[13],
|
|
|
+ guidInstance->data[14], guidInstance->data[15]);
|
|
|
|
|
|
/* Allocate the channel object and save this offer. */
|
|
|
newChannel = AllocVmbusChannel();
|
|
|
- if (!newChannel)
|
|
|
- {
|
|
|
+ if (!newChannel) {
|
|
|
DPRINT_ERR(VMBUS, "unable to allocate channel object");
|
|
|
return;
|
|
|
}
|
|
|
|
|
|
DPRINT_DBG(VMBUS, "channel object allocated - %p", newChannel);
|
|
|
|
|
|
- memcpy(&newChannel->OfferMsg, offer, sizeof(struct vmbus_channel_offer_channel));
|
|
|
+ memcpy(&newChannel->OfferMsg, offer,
|
|
|
+ sizeof(struct vmbus_channel_offer_channel));
|
|
|
newChannel->MonitorGroup = (u8)offer->MonitorId / 32;
|
|
|
newChannel->MonitorBit = (u8)offer->MonitorId % 32;
|
|
|
|
|
@@ -387,28 +346,23 @@ static void VmbusChannelOnOffer(struct vmbus_channel_message_header *hdr)
|
|
|
DPRINT_EXIT(VMBUS);
|
|
|
}
|
|
|
|
|
|
-
|
|
|
-/*++
|
|
|
-
|
|
|
-Name:
|
|
|
- VmbusChannelOnOfferRescind()
|
|
|
-
|
|
|
-Description:
|
|
|
- Rescind offer handler. We queue a work item to process this offer
|
|
|
- synchronously
|
|
|
-
|
|
|
---*/
|
|
|
+/**
|
|
|
+ * VmbusChannelOnOfferRescind - Rescind offer handler.
|
|
|
+ *
|
|
|
+ * We queue a work item to process this offer synchronously
|
|
|
+ */
|
|
|
static void VmbusChannelOnOfferRescind(struct vmbus_channel_message_header *hdr)
|
|
|
{
|
|
|
- struct vmbus_channel_rescind_offer *rescind = (struct vmbus_channel_rescind_offer *)hdr;
|
|
|
+ struct vmbus_channel_rescind_offer *rescind;
|
|
|
struct vmbus_channel *channel;
|
|
|
|
|
|
DPRINT_ENTER(VMBUS);
|
|
|
|
|
|
+ rescind = (struct vmbus_channel_rescind_offer *)hdr;
|
|
|
channel = GetChannelFromRelId(rescind->ChildRelId);
|
|
|
- if (channel == NULL)
|
|
|
- {
|
|
|
- DPRINT_DBG(VMBUS, "channel not found for relId %d", rescind->ChildRelId);
|
|
|
+ if (channel == NULL) {
|
|
|
+ DPRINT_DBG(VMBUS, "channel not found for relId %d",
|
|
|
+ rescind->ChildRelId);
|
|
|
return;
|
|
|
}
|
|
|
|
|
@@ -419,40 +373,30 @@ static void VmbusChannelOnOfferRescind(struct vmbus_channel_message_header *hdr)
|
|
|
DPRINT_EXIT(VMBUS);
|
|
|
}
|
|
|
|
|
|
-
|
|
|
-/*++
|
|
|
-
|
|
|
-Name:
|
|
|
- VmbusChannelOnOffersDelivered()
|
|
|
-
|
|
|
-Description:
|
|
|
- This is invoked when all offers have been delivered.
|
|
|
- Nothing to do here.
|
|
|
-
|
|
|
---*/
|
|
|
-static void VmbusChannelOnOffersDelivered(struct vmbus_channel_message_header *hdr)
|
|
|
+/**
|
|
|
+ * VmbusChannelOnOffersDelivered - This is invoked when all offers have been delivered.
|
|
|
+ *
|
|
|
+ * Nothing to do here.
|
|
|
+ */
|
|
|
+static void VmbusChannelOnOffersDelivered(
|
|
|
+ struct vmbus_channel_message_header *hdr)
|
|
|
{
|
|
|
DPRINT_ENTER(VMBUS);
|
|
|
DPRINT_EXIT(VMBUS);
|
|
|
}
|
|
|
|
|
|
-
|
|
|
-/*++
|
|
|
-
|
|
|
-Name:
|
|
|
- VmbusChannelOnOpenResult()
|
|
|
-
|
|
|
-Description:
|
|
|
- Open result handler. This is invoked when we received a response
|
|
|
- to our channel open request. Find the matching request, copy the
|
|
|
- response and signal the requesting thread.
|
|
|
-
|
|
|
---*/
|
|
|
+/**
|
|
|
+ * VmbusChannelOnOpenResult - Open result handler.
|
|
|
+ *
|
|
|
+ * This is invoked when we received a response to our channel open request.
|
|
|
+ * Find the matching request, copy the response and signal the requesting
|
|
|
+ * thread.
|
|
|
+ */
|
|
|
static void VmbusChannelOnOpenResult(struct vmbus_channel_message_header *hdr)
|
|
|
{
|
|
|
- struct vmbus_channel_open_result *result = (struct vmbus_channel_open_result *)hdr;
|
|
|
- LIST_ENTRY* anchor;
|
|
|
- LIST_ENTRY* curr;
|
|
|
+ struct vmbus_channel_open_result *result;
|
|
|
+ LIST_ENTRY *anchor;
|
|
|
+ LIST_ENTRY *curr;
|
|
|
struct vmbus_channel_msginfo *msgInfo;
|
|
|
struct vmbus_channel_message_header *requestHeader;
|
|
|
struct vmbus_channel_open_channel *openMsg;
|
|
@@ -460,23 +404,25 @@ static void VmbusChannelOnOpenResult(struct vmbus_channel_message_header *hdr)
|
|
|
|
|
|
DPRINT_ENTER(VMBUS);
|
|
|
|
|
|
+ result = (struct vmbus_channel_open_result *)hdr;
|
|
|
DPRINT_DBG(VMBUS, "vmbus open result - %d", result->Status);
|
|
|
|
|
|
- /* Find the open msg, copy the result and signal/unblock the wait event */
|
|
|
+ /*
|
|
|
+ * Find the open msg, copy the result and signal/unblock the wait event
|
|
|
+ */
|
|
|
spin_lock_irqsave(&gVmbusConnection.channelmsg_lock, flags);
|
|
|
|
|
|
- ITERATE_LIST_ENTRIES(anchor, curr, &gVmbusConnection.ChannelMsgList)
|
|
|
- {
|
|
|
+ ITERATE_LIST_ENTRIES(anchor, curr, &gVmbusConnection.ChannelMsgList) {
|
|
|
msgInfo = (struct vmbus_channel_msginfo *)curr;
|
|
|
requestHeader = (struct vmbus_channel_message_header *)msgInfo->Msg;
|
|
|
|
|
|
- if (requestHeader->MessageType == ChannelMessageOpenChannel)
|
|
|
- {
|
|
|
+ if (requestHeader->MessageType == ChannelMessageOpenChannel) {
|
|
|
openMsg = (struct vmbus_channel_open_channel *)msgInfo->Msg;
|
|
|
if (openMsg->ChildRelId == result->ChildRelId &&
|
|
|
- openMsg->OpenId == result->OpenId)
|
|
|
- {
|
|
|
- memcpy(&msgInfo->Response.OpenResult, result, sizeof(struct vmbus_channel_open_result));
|
|
|
+ openMsg->OpenId == result->OpenId) {
|
|
|
+ memcpy(&msgInfo->Response.OpenResult,
|
|
|
+ result,
|
|
|
+ sizeof(struct vmbus_channel_open_result));
|
|
|
osd_WaitEventSet(msgInfo->WaitEvent);
|
|
|
break;
|
|
|
}
|
|
@@ -487,21 +433,16 @@ static void VmbusChannelOnOpenResult(struct vmbus_channel_message_header *hdr)
|
|
|
DPRINT_EXIT(VMBUS);
|
|
|
}
|
|
|
|
|
|
-
|
|
|
-/*++
|
|
|
-
|
|
|
-Name:
|
|
|
- VmbusChannelOnGpadlCreated()
|
|
|
-
|
|
|
-Description:
|
|
|
- GPADL created handler. This is invoked when we received a response
|
|
|
- to our gpadl create request. Find the matching request, copy the
|
|
|
- response and signal the requesting thread.
|
|
|
-
|
|
|
---*/
|
|
|
+/**
|
|
|
+ * VmbusChannelOnGpadlCreated - GPADL created handler.
|
|
|
+ *
|
|
|
+ * This is invoked when we received a response to our gpadl create request.
|
|
|
+ * Find the matching request, copy the response and signal the requesting
|
|
|
+ * thread.
|
|
|
+ */
|
|
|
static void VmbusChannelOnGpadlCreated(struct vmbus_channel_message_header *hdr)
|
|
|
{
|
|
|
- struct vmbus_channel_gpadl_created *gpadlCreated = (struct vmbus_channel_gpadl_created *)hdr;
|
|
|
+ struct vmbus_channel_gpadl_created *gpadlCreated;
|
|
|
LIST_ENTRY *anchor;
|
|
|
LIST_ENTRY *curr;
|
|
|
struct vmbus_channel_msginfo *msgInfo;
|
|
@@ -511,24 +452,29 @@ static void VmbusChannelOnGpadlCreated(struct vmbus_channel_message_header *hdr)
|
|
|
|
|
|
DPRINT_ENTER(VMBUS);
|
|
|
|
|
|
- DPRINT_DBG(VMBUS, "vmbus gpadl created result - %d", gpadlCreated->CreationStatus);
|
|
|
+ gpadlCreated = (struct vmbus_channel_gpadl_created *)hdr;
|
|
|
+ DPRINT_DBG(VMBUS, "vmbus gpadl created result - %d",
|
|
|
+ gpadlCreated->CreationStatus);
|
|
|
|
|
|
- /* Find the establish msg, copy the result and signal/unblock the wait event */
|
|
|
+ /*
|
|
|
+ * Find the establish msg, copy the result and signal/unblock the wait
|
|
|
+ * event
|
|
|
+ */
|
|
|
spin_lock_irqsave(&gVmbusConnection.channelmsg_lock, flags);
|
|
|
|
|
|
- ITERATE_LIST_ENTRIES(anchor, curr, &gVmbusConnection.ChannelMsgList)
|
|
|
- {
|
|
|
+ ITERATE_LIST_ENTRIES(anchor, curr, &gVmbusConnection.ChannelMsgList) {
|
|
|
msgInfo = (struct vmbus_channel_msginfo *)curr;
|
|
|
requestHeader = (struct vmbus_channel_message_header *)msgInfo->Msg;
|
|
|
|
|
|
- if (requestHeader->MessageType == ChannelMessageGpadlHeader)
|
|
|
- {
|
|
|
+ if (requestHeader->MessageType == ChannelMessageGpadlHeader) {
|
|
|
gpadlHeader = (struct vmbus_channel_gpadl_header *)requestHeader;
|
|
|
|
|
|
- if ((gpadlCreated->ChildRelId == gpadlHeader->ChildRelId) &&
|
|
|
- (gpadlCreated->Gpadl == gpadlHeader->Gpadl))
|
|
|
- {
|
|
|
- memcpy(&msgInfo->Response.GpadlCreated, gpadlCreated, sizeof(struct vmbus_channel_gpadl_created));
|
|
|
+ if ((gpadlCreated->ChildRelId ==
|
|
|
+ gpadlHeader->ChildRelId) &&
|
|
|
+ (gpadlCreated->Gpadl == gpadlHeader->Gpadl)) {
|
|
|
+ memcpy(&msgInfo->Response.GpadlCreated,
|
|
|
+ gpadlCreated,
|
|
|
+ sizeof(struct vmbus_channel_gpadl_created));
|
|
|
osd_WaitEventSet(msgInfo->WaitEvent);
|
|
|
break;
|
|
|
}
|
|
@@ -539,23 +485,19 @@ static void VmbusChannelOnGpadlCreated(struct vmbus_channel_message_header *hdr)
|
|
|
DPRINT_EXIT(VMBUS);
|
|
|
}
|
|
|
|
|
|
-
|
|
|
-/*++
|
|
|
-
|
|
|
-Name:
|
|
|
- VmbusChannelOnGpadlTorndown()
|
|
|
-
|
|
|
-Description:
|
|
|
- GPADL torndown handler. This is invoked when we received a response
|
|
|
- to our gpadl teardown request. Find the matching request, copy the
|
|
|
- response and signal the requesting thread.
|
|
|
-
|
|
|
---*/
|
|
|
-static void VmbusChannelOnGpadlTorndown(struct vmbus_channel_message_header *hdr)
|
|
|
+/**
|
|
|
+ * VmbusChannelOnGpadlTorndown - GPADL torndown handler.
|
|
|
+ *
|
|
|
+ * This is invoked when we received a response to our gpadl teardown request.
|
|
|
+ * Find the matching request, copy the response and signal the requesting
|
|
|
+ * thread.
|
|
|
+ */
|
|
|
+static void VmbusChannelOnGpadlTorndown(
|
|
|
+ struct vmbus_channel_message_header *hdr)
|
|
|
{
|
|
|
- struct vmbus_channel_gpadl_torndown* gpadlTorndown = (struct vmbus_channel_gpadl_torndown *)hdr;
|
|
|
- LIST_ENTRY* anchor;
|
|
|
- LIST_ENTRY* curr;
|
|
|
+ struct vmbus_channel_gpadl_torndown *gpadlTorndown;
|
|
|
+ LIST_ENTRY *anchor;
|
|
|
+ LIST_ENTRY *curr;
|
|
|
struct vmbus_channel_msginfo *msgInfo;
|
|
|
struct vmbus_channel_message_header *requestHeader;
|
|
|
struct vmbus_channel_gpadl_teardown *gpadlTeardown;
|
|
@@ -563,21 +505,24 @@ static void VmbusChannelOnGpadlTorndown(struct vmbus_channel_message_header *hdr
|
|
|
|
|
|
DPRINT_ENTER(VMBUS);
|
|
|
|
|
|
- /* Find the open msg, copy the result and signal/unblock the wait event */
|
|
|
+ gpadlTorndown = (struct vmbus_channel_gpadl_torndown *)hdr;
|
|
|
+
|
|
|
+ /*
|
|
|
+ * Find the open msg, copy the result and signal/unblock the wait event
|
|
|
+ */
|
|
|
spin_lock_irqsave(&gVmbusConnection.channelmsg_lock, flags);
|
|
|
|
|
|
- ITERATE_LIST_ENTRIES(anchor, curr, &gVmbusConnection.ChannelMsgList)
|
|
|
- {
|
|
|
+ ITERATE_LIST_ENTRIES(anchor, curr, &gVmbusConnection.ChannelMsgList) {
|
|
|
msgInfo = (struct vmbus_channel_msginfo *)curr;
|
|
|
requestHeader = (struct vmbus_channel_message_header *)msgInfo->Msg;
|
|
|
|
|
|
- if (requestHeader->MessageType == ChannelMessageGpadlTeardown)
|
|
|
- {
|
|
|
+ if (requestHeader->MessageType == ChannelMessageGpadlTeardown) {
|
|
|
gpadlTeardown = (struct vmbus_channel_gpadl_teardown *)requestHeader;
|
|
|
|
|
|
- if (gpadlTorndown->Gpadl == gpadlTeardown->Gpadl)
|
|
|
- {
|
|
|
- memcpy(&msgInfo->Response.GpadlTorndown, gpadlTorndown, sizeof(struct vmbus_channel_gpadl_torndown));
|
|
|
+ if (gpadlTorndown->Gpadl == gpadlTeardown->Gpadl) {
|
|
|
+ memcpy(&msgInfo->Response.GpadlTorndown,
|
|
|
+ gpadlTorndown,
|
|
|
+ sizeof(struct vmbus_channel_gpadl_torndown));
|
|
|
osd_WaitEventSet(msgInfo->WaitEvent);
|
|
|
break;
|
|
|
}
|
|
@@ -588,41 +533,39 @@ static void VmbusChannelOnGpadlTorndown(struct vmbus_channel_message_header *hdr
|
|
|
DPRINT_EXIT(VMBUS);
|
|
|
}
|
|
|
|
|
|
-
|
|
|
-/*++
|
|
|
-
|
|
|
-Name:
|
|
|
- VmbusChannelOnVersionResponse()
|
|
|
-
|
|
|
-Description:
|
|
|
- Version response handler. This is invoked when we received a response
|
|
|
- to our initiate contact request. Find the matching request, copy the
|
|
|
- response and signal the requesting thread.
|
|
|
-
|
|
|
---*/
|
|
|
-static void VmbusChannelOnVersionResponse(struct vmbus_channel_message_header *hdr)
|
|
|
+/**
|
|
|
+ * VmbusChannelOnVersionResponse - Version response handler
|
|
|
+ *
|
|
|
+ * This is invoked when we received a response to our initiate contact request.
|
|
|
+ * Find the matching request, copy the response and signal the requesting
|
|
|
+ * thread.
|
|
|
+ */
|
|
|
+static void VmbusChannelOnVersionResponse(
|
|
|
+ struct vmbus_channel_message_header *hdr)
|
|
|
{
|
|
|
- LIST_ENTRY* anchor;
|
|
|
- LIST_ENTRY* curr;
|
|
|
+ LIST_ENTRY *anchor;
|
|
|
+ LIST_ENTRY *curr;
|
|
|
struct vmbus_channel_msginfo *msgInfo;
|
|
|
struct vmbus_channel_message_header *requestHeader;
|
|
|
struct vmbus_channel_initiate_contact *initiate;
|
|
|
- struct vmbus_channel_version_response *versionResponse = (struct vmbus_channel_version_response *)hdr;
|
|
|
+ struct vmbus_channel_version_response *versionResponse;
|
|
|
unsigned long flags;
|
|
|
|
|
|
DPRINT_ENTER(VMBUS);
|
|
|
|
|
|
+ versionResponse = (struct vmbus_channel_version_response *)hdr;
|
|
|
spin_lock_irqsave(&gVmbusConnection.channelmsg_lock, flags);
|
|
|
|
|
|
- ITERATE_LIST_ENTRIES(anchor, curr, &gVmbusConnection.ChannelMsgList)
|
|
|
- {
|
|
|
+ ITERATE_LIST_ENTRIES(anchor, curr, &gVmbusConnection.ChannelMsgList) {
|
|
|
msgInfo = (struct vmbus_channel_msginfo *)curr;
|
|
|
requestHeader = (struct vmbus_channel_message_header *)msgInfo->Msg;
|
|
|
|
|
|
- if (requestHeader->MessageType == ChannelMessageInitiateContact)
|
|
|
- {
|
|
|
+ if (requestHeader->MessageType ==
|
|
|
+ ChannelMessageInitiateContact) {
|
|
|
initiate = (struct vmbus_channel_initiate_contact *)requestHeader;
|
|
|
- memcpy(&msgInfo->Response.VersionResponse, versionResponse, sizeof(struct vmbus_channel_version_response));
|
|
|
+ memcpy(&msgInfo->Response.VersionResponse,
|
|
|
+ versionResponse,
|
|
|
+ sizeof(struct vmbus_channel_version_response));
|
|
|
osd_WaitEventSet(msgInfo->WaitEvent);
|
|
|
}
|
|
|
}
|
|
@@ -631,17 +574,11 @@ static void VmbusChannelOnVersionResponse(struct vmbus_channel_message_header *h
|
|
|
DPRINT_EXIT(VMBUS);
|
|
|
}
|
|
|
|
|
|
-
|
|
|
-/*++
|
|
|
-
|
|
|
-Name:
|
|
|
- VmbusOnChannelMessage()
|
|
|
-
|
|
|
-Description:
|
|
|
- Handler for channel protocol messages.
|
|
|
- This is invoked in the vmbus worker thread context.
|
|
|
-
|
|
|
---*/
|
|
|
+/**
|
|
|
+ * VmbusOnChannelMessage - Handler for channel protocol messages.
|
|
|
+ *
|
|
|
+ * This is invoked in the vmbus worker thread context.
|
|
|
+ */
|
|
|
void VmbusOnChannelMessage(void *Context)
|
|
|
{
|
|
|
struct hv_message *msg = Context;
|
|
@@ -651,13 +588,14 @@ void VmbusOnChannelMessage(void *Context)
|
|
|
DPRINT_ENTER(VMBUS);
|
|
|
|
|
|
hdr = (struct vmbus_channel_message_header *)msg->u.Payload;
|
|
|
- size=msg->Header.PayloadSize;
|
|
|
+ size = msg->Header.PayloadSize;
|
|
|
|
|
|
DPRINT_DBG(VMBUS, "message type %d size %d", hdr->MessageType, size);
|
|
|
|
|
|
- if (hdr->MessageType >= ChannelMessageCount)
|
|
|
- {
|
|
|
- DPRINT_ERR(VMBUS, "Received invalid channel message type %d size %d", hdr->MessageType, size);
|
|
|
+ if (hdr->MessageType >= ChannelMessageCount) {
|
|
|
+ DPRINT_ERR(VMBUS,
|
|
|
+ "Received invalid channel message type %d size %d",
|
|
|
+ hdr->MessageType, size);
|
|
|
print_hex_dump_bytes("", DUMP_PREFIX_NONE,
|
|
|
(unsigned char *)msg->u.Payload, size);
|
|
|
kfree(msg);
|
|
@@ -665,38 +603,30 @@ void VmbusOnChannelMessage(void *Context)
|
|
|
}
|
|
|
|
|
|
if (gChannelMessageTable[hdr->MessageType].messageHandler)
|
|
|
- {
|
|
|
gChannelMessageTable[hdr->MessageType].messageHandler(hdr);
|
|
|
- }
|
|
|
else
|
|
|
- {
|
|
|
- DPRINT_ERR(VMBUS, "Unhandled channel message type %d", hdr->MessageType);
|
|
|
- }
|
|
|
+ DPRINT_ERR(VMBUS, "Unhandled channel message type %d",
|
|
|
+ hdr->MessageType);
|
|
|
|
|
|
/* Free the msg that was allocated in VmbusOnMsgDPC() */
|
|
|
kfree(msg);
|
|
|
DPRINT_EXIT(VMBUS);
|
|
|
}
|
|
|
|
|
|
-
|
|
|
-/*++
|
|
|
-
|
|
|
-Name:
|
|
|
- VmbusChannelRequestOffers()
|
|
|
-
|
|
|
-Description:
|
|
|
- Send a request to get all our pending offers.
|
|
|
-
|
|
|
---*/
|
|
|
+/**
|
|
|
+ * VmbusChannelRequestOffers - Send a request to get all our pending offers.
|
|
|
+ */
|
|
|
int VmbusChannelRequestOffers(void)
|
|
|
{
|
|
|
- int ret=0;
|
|
|
struct vmbus_channel_message_header *msg;
|
|
|
struct vmbus_channel_msginfo *msgInfo;
|
|
|
+ int ret;
|
|
|
|
|
|
DPRINT_ENTER(VMBUS);
|
|
|
|
|
|
- msgInfo = kmalloc(sizeof(*msgInfo) + sizeof(struct vmbus_channel_message_header), GFP_KERNEL);
|
|
|
+ msgInfo = kmalloc(sizeof(*msgInfo) +
|
|
|
+ sizeof(struct vmbus_channel_message_header),
|
|
|
+ GFP_KERNEL);
|
|
|
ASSERT(msgInfo != NULL);
|
|
|
|
|
|
msgInfo->WaitEvent = osd_WaitEventCreate();
|
|
@@ -705,12 +635,13 @@ int VmbusChannelRequestOffers(void)
|
|
|
msg->MessageType = ChannelMessageRequestOffers;
|
|
|
|
|
|
/*SpinlockAcquire(gVmbusConnection.channelMsgLock);
|
|
|
- INSERT_TAIL_LIST(&gVmbusConnection.channelMsgList, &msgInfo->msgListEntry);
|
|
|
+ INSERT_TAIL_LIST(&gVmbusConnection.channelMsgList,
|
|
|
+ &msgInfo->msgListEntry);
|
|
|
SpinlockRelease(gVmbusConnection.channelMsgLock);*/
|
|
|
|
|
|
- ret = VmbusPostMessage(msg, sizeof(struct vmbus_channel_message_header));
|
|
|
- if (ret != 0)
|
|
|
- {
|
|
|
+ ret = VmbusPostMessage(msg,
|
|
|
+ sizeof(struct vmbus_channel_message_header));
|
|
|
+ if (ret != 0) {
|
|
|
DPRINT_ERR(VMBUS, "Unable to request offers - %d", ret);
|
|
|
|
|
|
/*SpinlockAcquire(gVmbusConnection.channelMsgLock);
|
|
@@ -727,26 +658,18 @@ int VmbusChannelRequestOffers(void)
|
|
|
|
|
|
|
|
|
Cleanup:
|
|
|
- if (msgInfo)
|
|
|
- {
|
|
|
+ if (msgInfo) {
|
|
|
kfree(msgInfo->WaitEvent);
|
|
|
kfree(msgInfo);
|
|
|
}
|
|
|
|
|
|
DPRINT_EXIT(VMBUS);
|
|
|
-
|
|
|
return ret;
|
|
|
}
|
|
|
|
|
|
-/*++
|
|
|
-
|
|
|
-Name:
|
|
|
- VmbusChannelReleaseUnattachedChannels()
|
|
|
-
|
|
|
-Description:
|
|
|
- Release channels that are unattached/unconnected ie (no drivers associated)
|
|
|
-
|
|
|
---*/
|
|
|
+/**
|
|
|
+ * VmbusChannelReleaseUnattachedChannels - Release channels that are unattached/unconnected ie (no drivers associated)
|
|
|
+ */
|
|
|
void VmbusChannelReleaseUnattachedChannels(void)
|
|
|
{
|
|
|
LIST_ENTRY *entry;
|
|
@@ -756,28 +679,25 @@ void VmbusChannelReleaseUnattachedChannels(void)
|
|
|
|
|
|
spin_lock_irqsave(&gVmbusConnection.channel_lock, flags);
|
|
|
|
|
|
- while (!IsListEmpty(&gVmbusConnection.ChannelList))
|
|
|
- {
|
|
|
+ while (!IsListEmpty(&gVmbusConnection.ChannelList)) {
|
|
|
entry = TOP_LIST_ENTRY(&gVmbusConnection.ChannelList);
|
|
|
- channel = CONTAINING_RECORD(entry, struct vmbus_channel, ListEntry);
|
|
|
+ channel = CONTAINING_RECORD(entry, struct vmbus_channel,
|
|
|
+ ListEntry);
|
|
|
|
|
|
if (channel == start)
|
|
|
break;
|
|
|
|
|
|
- if (!channel->DeviceObject->Driver)
|
|
|
- {
|
|
|
+ if (!channel->DeviceObject->Driver) {
|
|
|
REMOVE_ENTRY_LIST(&channel->ListEntry);
|
|
|
- DPRINT_INFO(VMBUS, "Releasing unattached device object %p", channel->DeviceObject);
|
|
|
+ DPRINT_INFO(VMBUS,
|
|
|
+ "Releasing unattached device object %p",
|
|
|
+ channel->DeviceObject);
|
|
|
|
|
|
VmbusChildDeviceRemove(channel->DeviceObject);
|
|
|
FreeVmbusChannel(channel);
|
|
|
- }
|
|
|
- else
|
|
|
- {
|
|
|
+ } else {
|
|
|
if (!start)
|
|
|
- {
|
|
|
start = channel;
|
|
|
- }
|
|
|
}
|
|
|
}
|
|
|
|