forked from Minki/linux
Staging: hv: coding style cleanups for ChannelMgmt.c
There are still some too-long lines here, hopefully they will get resolved later. Cc: Hank Janssen <hjanssen@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Greg Kroah-Hartman
parent
df2fff28ec
commit
bd60c33e77
@ -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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#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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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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#define MAX_NUM_DEVICE_CLASSES_SUPPORTED 4
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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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Name:
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AllocVmbusChannel()
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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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* 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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Name:
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ReleaseVmbusChannel()
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Description:
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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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* 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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Name:
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FreeVmbusChannel()
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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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* 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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Name:
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VmbusChannelProcessOffer()
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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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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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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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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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Name:
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VmbusChannelProcessRescindOffer()
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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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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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VmbusChildDeviceRemove(channel->DeviceObject);
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DPRINT_EXIT(VMBUS);
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}
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/*++
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Name:
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VmbusChannelOnOffer()
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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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* 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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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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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}",
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offer->ChildRelId,
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offer->MonitorId,
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offer->MonitorAllocated,
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guidType->data[3], guidType->data[2], guidType->data[1], guidType->data[0],
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guidType->data[5], guidType->data[4], guidType->data[7], guidType->data[6],
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guidType->data[8], guidType->data[9], guidType->data[10], guidType->data[11],
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guidType->data[12], guidType->data[13], guidType->data[14], guidType->data[15],
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guidInstance->data[3], guidInstance->data[2], guidInstance->data[1], guidInstance->data[0],
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guidInstance->data[5], guidInstance->data[4], guidInstance->data[7], guidInstance->data[6],
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guidInstance->data[8], guidInstance->data[9], guidInstance->data[10], guidInstance->data[11],
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guidInstance->data[12], guidInstance->data[13], guidInstance->data[14], guidInstance->data[15]);
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DPRINT_INFO(VMBUS, "Channel offer notification - "
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"child relid %d monitor id %d allocated %d, "
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"type {%02x%02x%02x%02x-%02x%02x-%02x%02x-"
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"%02x%02x%02x%02x%02x%02x%02x%02x} "
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"instance {%02x%02x%02x%02x-%02x%02x-%02x%02x-"
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"%02x%02x%02x%02x%02x%02x%02x%02x}",
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offer->ChildRelId, offer->MonitorId,
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offer->MonitorAllocated,
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guidType->data[3], guidType->data[2],
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guidType->data[1], guidType->data[0],
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guidType->data[5], guidType->data[4],
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guidType->data[7], guidType->data[6],
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guidType->data[8], guidType->data[9],
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guidType->data[10], guidType->data[11],
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guidType->data[12], guidType->data[13],
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guidType->data[14], guidType->data[15],
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guidInstance->data[3], guidInstance->data[2],
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guidInstance->data[1], guidInstance->data[0],
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guidInstance->data[5], guidInstance->data[4],
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guidInstance->data[7], guidInstance->data[6],
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guidInstance->data[8], guidInstance->data[9],
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guidInstance->data[10], guidInstance->data[11],
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guidInstance->data[12], guidInstance->data[13],
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guidInstance->data[14], guidInstance->data[15]);
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/* 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;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user