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提交 bd60c33e 编写于 作者: G Greg Kroah-Hartman
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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: NGreg Kroah-Hartman <gregkh@suse.de>
上级 df2fff28
隐藏空白更改
内联 并排
Showing with 267 addition and 347 deletion
drivers/staging/hv/ChannelMgmt.c
浏览文件 @ bd60c33e
/*
*
* Copyright (c) 2009, Microsoft Corporation.
*
* This program is free software; you can redistribute it and/or modify it
......@@ -18,18 +17,13 @@
* Authors:
* Haiyang Zhang <haiyangz@microsoft.com>
* Hank Janssen <hjanssen@microsoft.com>
*
*/
#include <linux/kernel.h>
#include <linux/mm.h>
#include "osd.h"
#include "logging.h"
#include "VmbusPrivate.h"
/* Data types */
typedef void (*PFN_CHANNEL_MESSAGE_HANDLER)(struct vmbus_channel_message_header *msg);
struct vmbus_channel_message_table_entry {
......@@ -37,23 +31,20 @@ struct vmbus_channel_message_table_entry {
PFN_CHANNEL_MESSAGE_HANDLER messageHandler;
};
/* Internal routines */
static void VmbusChannelOnOffer(struct vmbus_channel_message_header *hdr);
static void VmbusChannelOnOpenResult(struct vmbus_channel_message_header *hdr);
static void VmbusChannelOnOfferRescind(struct vmbus_channel_message_header *hdr);
static void VmbusChannelOnGpadlCreated(struct vmbus_channel_message_header *hdr);
static void VmbusChannelOnGpadlTorndown(struct vmbus_channel_message_header *hdr);
static void VmbusChannelOnOffersDelivered(struct vmbus_channel_message_header *hdr);
static void VmbusChannelOnVersionResponse(struct vmbus_channel_message_header *hdr);
static void VmbusChannelProcessOffer(void * context);
static void VmbusChannelProcessRescindOffer(void * context);
static void VmbusChannelOnOffer(struct vmbus_channel_message_header *);
static void VmbusChannelOnOpenResult(struct vmbus_channel_message_header *);
static void VmbusChannelOnOfferRescind(struct vmbus_channel_message_header *);
static void VmbusChannelOnGpadlCreated(struct vmbus_channel_message_header *);
static void VmbusChannelOnGpadlTorndown(struct vmbus_channel_message_header *);
static void VmbusChannelOnOffersDelivered(struct vmbus_channel_message_header *);
static void VmbusChannelOnVersionResponse(struct vmbus_channel_message_header *);
static void VmbusChannelProcessOffer(void *context);
static void VmbusChannelProcessRescindOffer(void *context);
/* Globals */
#define MAX_NUM_DEVICE_CLASSES_SUPPORTED 4
static const struct hv_guid gSupportedDeviceClasses[MAX_NUM_DEVICE_CLASSES_SUPPORTED] = {
static const struct hv_guid
gSupportedDeviceClasses[MAX_NUM_DEVICE_CLASSES_SUPPORTED] = {
/* {ba6163d9-04a1-4d29-b605-72e2ffb1dc7f} */
/* Storage - SCSI */
{
......@@ -92,44 +83,37 @@ static const struct hv_guid gSupportedDeviceClasses[MAX_NUM_DEVICE_CLASSES_SUPPO
};
/* Channel message dispatch table */
static struct vmbus_channel_message_table_entry gChannelMessageTable[ChannelMessageCount]= {
{ChannelMessageInvalid, NULL},
{ChannelMessageOfferChannel, VmbusChannelOnOffer},
{ChannelMessageRescindChannelOffer, VmbusChannelOnOfferRescind},
{ChannelMessageRequestOffers, NULL},
{ChannelMessageAllOffersDelivered, VmbusChannelOnOffersDelivered},
{ChannelMessageOpenChannel, NULL},
{ChannelMessageOpenChannelResult, VmbusChannelOnOpenResult},
{ChannelMessageCloseChannel, NULL},
{ChannelMessageGpadlHeader, NULL},
{ChannelMessageGpadlBody, NULL},
{ChannelMessageGpadlCreated, VmbusChannelOnGpadlCreated},
{ChannelMessageGpadlTeardown, NULL},
{ChannelMessageGpadlTorndown, VmbusChannelOnGpadlTorndown},
{ChannelMessageRelIdReleased, NULL},
{ChannelMessageInitiateContact, NULL},
{ChannelMessageVersionResponse, VmbusChannelOnVersionResponse},
{ChannelMessageUnload, NULL},
static struct vmbus_channel_message_table_entry
gChannelMessageTable[ChannelMessageCount] = {
{ChannelMessageInvalid, NULL},
{ChannelMessageOfferChannel, VmbusChannelOnOffer},
{ChannelMessageRescindChannelOffer, VmbusChannelOnOfferRescind},
{ChannelMessageRequestOffers, NULL},
{ChannelMessageAllOffersDelivered, VmbusChannelOnOffersDelivered},
{ChannelMessageOpenChannel, NULL},
{ChannelMessageOpenChannelResult, VmbusChannelOnOpenResult},
{ChannelMessageCloseChannel, NULL},
{ChannelMessageGpadlHeader, NULL},
{ChannelMessageGpadlBody, NULL},
{ChannelMessageGpadlCreated, VmbusChannelOnGpadlCreated},
{ChannelMessageGpadlTeardown, NULL},
{ChannelMessageGpadlTorndown, VmbusChannelOnGpadlTorndown},
{ChannelMessageRelIdReleased, NULL},
{ChannelMessageInitiateContact, NULL},
{ChannelMessageVersionResponse, VmbusChannelOnVersionResponse},
{ChannelMessageUnload, NULL},
};
/*++
Name:
AllocVmbusChannel()
Description:
Allocate and initialize a vmbus channel object
--*/
/**
* AllocVmbusChannel - Allocate and initialize a vmbus channel object
*/
struct vmbus_channel *AllocVmbusChannel(void)
{
struct vmbus_channel *channel;
channel = kzalloc(sizeof(*channel), GFP_ATOMIC);
if (!channel)
{
return NULL;
}
spin_lock_init(&channel->inbound_lock);
......@@ -137,10 +121,8 @@ struct vmbus_channel *AllocVmbusChannel(void)
channel->poll_timer.data = (unsigned long)channel;
channel->poll_timer.function = VmbusChannelOnTimer;
/* channel->dataWorkQueue = WorkQueueCreate("data"); */
channel->ControlWQ = create_workqueue("hv_vmbus_ctl");
if (!channel->ControlWQ)
{
if (!channel->ControlWQ) {
kfree(channel);
return NULL;
}
......@@ -148,18 +130,12 @@ struct vmbus_channel *AllocVmbusChannel(void)
return channel;
}
/*++
Name:
ReleaseVmbusChannel()
Description:
Release the vmbus channel object itself
--*/
static inline void ReleaseVmbusChannel(void* Context)
/**
* ReleaseVmbusChannel - Release the vmbus channel object itself
*/
static inline void ReleaseVmbusChannel(void *context)
{
struct vmbus_channel *channel = Context;
struct vmbus_channel *channel = context;
DPRINT_ENTER(VMBUS);
......@@ -172,46 +148,33 @@ static inline void ReleaseVmbusChannel(void* Context)
DPRINT_EXIT(VMBUS);
}
/*++
Name:
FreeVmbusChannel()
Description:
Release the resources used by the vmbus channel object
--*/
/**
* FreeVmbusChannel - Release the resources used by the vmbus channel object
*/
void FreeVmbusChannel(struct vmbus_channel *Channel)
{
del_timer(&Channel->poll_timer);
/* We have to release the channel's workqueue/thread in the vmbus's workqueue/thread context */
/* ie we can't destroy ourselves. */
/*
* We have to release the channel's workqueue/thread in the vmbus's
* workqueue/thread context
* ie we can't destroy ourselves.
*/
osd_schedule_callback(gVmbusConnection.WorkQueue, ReleaseVmbusChannel,
(void *)Channel);
Channel);
}
/*++
Name:
VmbusChannelProcessOffer()
Description:
Process the offer by creating a channel/device associated with this offer
--*/
static void
VmbusChannelProcessOffer(
void * context
)
/**
* VmbusChannelProcessOffer - Process the offer by creating a channel/device associated with this offer
*/
static void VmbusChannelProcessOffer(void *context)
{
int ret=0;
struct vmbus_channel *newChannel = context;
struct vmbus_channel *channel;
LIST_ENTRY* anchor;
LIST_ENTRY* curr;
LIST_ENTRY *anchor;
LIST_ENTRY *curr;
bool fNew = true;
int ret;
unsigned long flags;
DPRINT_ENTER(VMBUS);
......@@ -219,61 +182,65 @@ VmbusChannelProcessOffer(
/* Make sure this is a new offer */
spin_lock_irqsave(&gVmbusConnection.channel_lock, flags);
ITERATE_LIST_ENTRIES(anchor, curr, &gVmbusConnection.ChannelList)
{
channel = CONTAINING_RECORD(curr, struct vmbus_channel, ListEntry);
ITERATE_LIST_ENTRIES(anchor, curr, &gVmbusConnection.ChannelList) {
channel = CONTAINING_RECORD(curr, struct vmbus_channel,
ListEntry);
if (!memcmp(&channel->OfferMsg.Offer.InterfaceType, &newChannel->OfferMsg.Offer.InterfaceType,sizeof(struct hv_guid)) &&
!memcmp(&channel->OfferMsg.Offer.InterfaceInstance, &newChannel->OfferMsg.Offer.InterfaceInstance, sizeof(struct hv_guid)))
{
if (!memcmp(&channel->OfferMsg.Offer.InterfaceType,
&newChannel->OfferMsg.Offer.InterfaceType,
sizeof(struct hv_guid)) &&
!memcmp(&channel->OfferMsg.Offer.InterfaceInstance,
&newChannel->OfferMsg.Offer.InterfaceInstance,
sizeof(struct hv_guid))) {
fNew = false;
break;
}
}
if (fNew)
{
INSERT_TAIL_LIST(&gVmbusConnection.ChannelList, &newChannel->ListEntry);
}
INSERT_TAIL_LIST(&gVmbusConnection.ChannelList,
&newChannel->ListEntry);
spin_unlock_irqrestore(&gVmbusConnection.channel_lock, flags);
if (!fNew)
{
DPRINT_DBG(VMBUS, "Ignoring duplicate offer for relid (%d)", newChannel->OfferMsg.ChildRelId);
if (!fNew) {
DPRINT_DBG(VMBUS, "Ignoring duplicate offer for relid (%d)",
newChannel->OfferMsg.ChildRelId);
FreeVmbusChannel(newChannel);
DPRINT_EXIT(VMBUS);
return;
}
/* Start the process of binding this offer to the driver */
/* We need to set the DeviceObject field before calling VmbusChildDeviceAdd() */
/*
* Start the process of binding this offer to the driver
* We need to set the DeviceObject field before calling
* VmbusChildDeviceAdd()
*/
newChannel->DeviceObject = VmbusChildDeviceCreate(
&newChannel->OfferMsg.Offer.InterfaceType,
&newChannel->OfferMsg.Offer.InterfaceInstance,
newChannel);
DPRINT_DBG(VMBUS, "child device object allocated - %p", newChannel->DeviceObject);
DPRINT_DBG(VMBUS, "child device object allocated - %p",
newChannel->DeviceObject);
/*
* Add the new device to the bus. This will kick off device-driver
* binding which eventually invokes the device driver's AddDevice()
* method.
*/
ret = VmbusChildDeviceAdd(newChannel->DeviceObject);
if (ret != 0)
{
DPRINT_ERR(VMBUS, "unable to add child device object (relid %d)",
newChannel->OfferMsg.ChildRelId);
if (ret != 0) {
DPRINT_ERR(VMBUS,
"unable to add child device object (relid %d)",
newChannel->OfferMsg.ChildRelId);
spin_lock_irqsave(&gVmbusConnection.channel_lock, flags);
REMOVE_ENTRY_LIST(&newChannel->ListEntry);
spin_unlock_irqrestore(&gVmbusConnection.channel_lock, flags);
FreeVmbusChannel(newChannel);
}
else
{
} else {
/*
* This state is used to indicate a successful open
* so that when we do close the channel normally, we
......@@ -284,99 +251,91 @@ VmbusChannelProcessOffer(
DPRINT_EXIT(VMBUS);
}
/*++
Name:
VmbusChannelProcessRescindOffer()
Description:
Rescind the offer by initiating a device removal
--*/
static void
VmbusChannelProcessRescindOffer(
void * context
)
/**
* VmbusChannelProcessRescindOffer - Rescind the offer by initiating a device removal
*/
static void VmbusChannelProcessRescindOffer(void *context)
{
struct vmbus_channel *channel = context;
DPRINT_ENTER(VMBUS);
VmbusChildDeviceRemove(channel->DeviceObject);
DPRINT_EXIT(VMBUS);
}
/*++
Name:
VmbusChannelOnOffer()
Description:
Handler for channel offers from vmbus in parent partition. We ignore all offers except
network and storage offers. For each network and storage offers, we create a channel object
and queue a work item to the channel object to process the offer synchronously
--*/
/**
* VmbusChannelOnOffer - Handler for channel offers from vmbus in parent partition.
*
* We ignore all offers except network and storage offers. For each network and
* storage offers, we create a channel object and queue a work item to the
* channel object to process the offer synchronously
*/
static void VmbusChannelOnOffer(struct vmbus_channel_message_header *hdr)
{
struct vmbus_channel_offer_channel *offer = (struct vmbus_channel_offer_channel *)hdr;
struct vmbus_channel_offer_channel *offer;
struct vmbus_channel *newChannel;
struct hv_guid *guidType;
struct hv_guid *guidInstance;
int i;
int fSupported=0;
int fSupported = 0;
DPRINT_ENTER(VMBUS);
for (i=0; i<MAX_NUM_DEVICE_CLASSES_SUPPORTED; i++)
{
if (memcmp(&offer->Offer.InterfaceType, &gSupportedDeviceClasses[i], sizeof(struct hv_guid)) == 0)
{
offer = (struct vmbus_channel_offer_channel *)hdr;
for (i = 0; i < MAX_NUM_DEVICE_CLASSES_SUPPORTED; i++) {
if (memcmp(&offer->Offer.InterfaceType,
&gSupportedDeviceClasses[i], sizeof(struct hv_guid)) == 0) {
fSupported = 1;
break;
}
}
if (!fSupported)
{
DPRINT_DBG(VMBUS, "Ignoring channel offer notification for child relid %d", offer->ChildRelId);
if (!fSupported) {
DPRINT_DBG(VMBUS, "Ignoring channel offer notification for "
"child relid %d", offer->ChildRelId);
DPRINT_EXIT(VMBUS);
return;
}
guidType = &offer->Offer.InterfaceType;
guidInstance = &offer->Offer.InterfaceInstance;
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]);
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;
}
}
}
......
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