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Message-ID: <4CA4105E.80602@sailtheuniverse.com>
Date: Wed, 29 Sep 2010 21:21:50 -0700
From: Hank Janssen <hjanssen@...ltheuniverse.com>
To: hjanssen@...rosoft.com, Haiyang Zhang <haiyangz@...rosoft.com>,
devel@...verdev.osuosl.org, virtualization@...ts.osdl.org,
linux-kernel@...r.kernel.org
Subject: [PATCH 1/1] staging: hv: Remove camel case variables in channel.c
Rename camel case variables in channel.c and changed them to
lowercase.
Sending this from my own accounts till we have a proper mail server
set up that allows us to send out patches without issues.
This patch was created by Haiyang Zhang.
Signed-off-by: Haiyang Zhang <haiyangz@...rosoft.com>
Signed-off-by: Hank Janssen <hjanssen@...rosoft.com>
---
drivers/staging/hv/channel.c | 767 +++++++++++++++++++++---------------------
1 files changed, 387 insertions(+), 380 deletions(-)
diff --git a/drivers/staging/hv/channel.c b/drivers/staging/hv/channel.c
index 37b7b4c..1037488 100644
--- a/drivers/staging/hv/channel.c
+++ b/drivers/staging/hv/channel.c
@@ -28,10 +28,10 @@
/* Internal routines */
static int VmbusChannelCreateGpadlHeader(
- void *Kbuffer, /* must be phys and virt contiguous */
- u32 Size, /* page-size multiple */
- struct vmbus_channel_msginfo **msgInfo,
- u32 *MessageCount);
+ void *kbuffer, /* must be phys and virt contiguous */
+ u32 size, /* page-size multiple */
+ struct vmbus_channel_msginfo **msginfo,
+ u32 *messagecount);
static void DumpVmbusChannel(struct vmbus_channel *channel);
static void VmbusChannelSetEvent(struct vmbus_channel *channel);
@@ -70,25 +70,25 @@ static void DumpMonitorPage(struct hv_monitor_page *MonitorPage)
* VmbusChannelSetEvent - Trigger an event notification on the specified
* channel.
*/
-static void VmbusChannelSetEvent(struct vmbus_channel *Channel)
+static void VmbusChannelSetEvent(struct vmbus_channel *channel)
{
- struct hv_monitor_page *monitorPage;
+ struct hv_monitor_page *monitorpage;
- if (Channel->OfferMsg.MonitorAllocated) {
+ if (channel->OfferMsg.MonitorAllocated) {
/* Each u32 represents 32 channels */
- set_bit(Channel->OfferMsg.ChildRelId & 31,
+ set_bit(channel->OfferMsg.ChildRelId & 31,
(unsigned long *) gVmbusConnection.SendInterruptPage +
- (Channel->OfferMsg.ChildRelId >> 5));
+ (channel->OfferMsg.ChildRelId >> 5));
- monitorPage = gVmbusConnection.MonitorPages;
- monitorPage++; /* Get the child to parent monitor page */
+ monitorpage = gVmbusConnection.MonitorPages;
+ monitorpage++; /* Get the child to parent monitor page */
- set_bit(Channel->MonitorBit,
- (unsigned long *)&monitorPage->TriggerGroup
- [Channel->MonitorGroup].Pending);
+ set_bit(channel->MonitorBit,
+ (unsigned long *)&monitorpage->TriggerGroup
+ [channel->MonitorGroup].Pending);
} else {
- VmbusSetEvent(Channel->OfferMsg.ChildRelId);
+ VmbusSetEvent(channel->OfferMsg.ChildRelId);
}
}
@@ -117,54 +117,54 @@ static void VmbusChannelClearEvent(struct vmbus_channel *channel)
/*
* VmbusChannelGetDebugInfo -Retrieve various channel debug info
*/
-void VmbusChannelGetDebugInfo(struct vmbus_channel *Channel,
- struct vmbus_channel_debug_info *DebugInfo)
+void VmbusChannelGetDebugInfo(struct vmbus_channel *channel,
+ struct vmbus_channel_debug_info *debuginfo)
{
- struct hv_monitor_page *monitorPage;
- u8 monitorGroup = (u8)Channel->OfferMsg.MonitorId / 32;
- u8 monitorOffset = (u8)Channel->OfferMsg.MonitorId % 32;
+ struct hv_monitor_page *monitorpage;
+ u8 monitor_group = (u8)channel->OfferMsg.MonitorId / 32;
+ u8 monitor_offset = (u8)channel->OfferMsg.MonitorId % 32;
/* u32 monitorBit = 1 << monitorOffset; */
- DebugInfo->RelId = Channel->OfferMsg.ChildRelId;
- DebugInfo->State = Channel->State;
- memcpy(&DebugInfo->InterfaceType,
- &Channel->OfferMsg.Offer.InterfaceType, sizeof(struct hv_guid));
- memcpy(&DebugInfo->InterfaceInstance,
- &Channel->OfferMsg.Offer.InterfaceInstance,
+ debuginfo->RelId = channel->OfferMsg.ChildRelId;
+ debuginfo->State = channel->State;
+ memcpy(&debuginfo->InterfaceType,
+ &channel->OfferMsg.Offer.InterfaceType, sizeof(struct hv_guid));
+ memcpy(&debuginfo->InterfaceInstance,
+ &channel->OfferMsg.Offer.InterfaceInstance,
sizeof(struct hv_guid));
- monitorPage = (struct hv_monitor_page *)gVmbusConnection.MonitorPages;
+ monitorpage = (struct hv_monitor_page *)gVmbusConnection.MonitorPages;
- DebugInfo->MonitorId = Channel->OfferMsg.MonitorId;
+ debuginfo->MonitorId = channel->OfferMsg.MonitorId;
- DebugInfo->ServerMonitorPending =
- monitorPage->TriggerGroup[monitorGroup].Pending;
- DebugInfo->ServerMonitorLatency =
- monitorPage->Latency[monitorGroup][monitorOffset];
- DebugInfo->ServerMonitorConnectionId =
- monitorPage->Parameter[monitorGroup]
- [monitorOffset].ConnectionId.u.Id;
+ debuginfo->ServerMonitorPending =
+ monitorpage->TriggerGroup[monitor_group].Pending;
+ debuginfo->ServerMonitorLatency =
+ monitorpage->Latency[monitor_group][monitor_offset];
+ debuginfo->ServerMonitorConnectionId =
+ monitorpage->Parameter[monitor_group]
+ [monitor_offset].ConnectionId.u.Id;
- monitorPage++;
+ monitorpage++;
- DebugInfo->ClientMonitorPending =
- monitorPage->TriggerGroup[monitorGroup].Pending;
- DebugInfo->ClientMonitorLatency =
- monitorPage->Latency[monitorGroup][monitorOffset];
- DebugInfo->ClientMonitorConnectionId =
- monitorPage->Parameter[monitorGroup]
- [monitorOffset].ConnectionId.u.Id;
+ debuginfo->ClientMonitorPending =
+ monitorpage->TriggerGroup[monitor_group].Pending;
+ debuginfo->ClientMonitorLatency =
+ monitorpage->Latency[monitor_group][monitor_offset];
+ debuginfo->ClientMonitorConnectionId =
+ monitorpage->Parameter[monitor_group]
+ [monitor_offset].ConnectionId.u.Id;
- RingBufferGetDebugInfo(&Channel->Inbound, &DebugInfo->Inbound);
- RingBufferGetDebugInfo(&Channel->Outbound, &DebugInfo->Outbound);
+ RingBufferGetDebugInfo(&channel->Inbound, &debuginfo->Inbound);
+ RingBufferGetDebugInfo(&channel->Outbound, &debuginfo->Outbound);
}
/*
* VmbusChannelOpen - Open the specified channel.
*/
-int VmbusChannelOpen(struct vmbus_channel *NewChannel, u32 SendRingBufferSize,
- u32 RecvRingBufferSize, void *UserData, u32 UserDataLen,
- void (*OnChannelCallback)(void *context), void *Context)
+int VmbusChannelOpen(struct vmbus_channel *newchannel, u32 send_ringbuffer_size,
+ u32 recv_ringbuffer_size, void *userdata, u32 userdatalen,
+ void (*onchannelcallback)(void *context), void *context)
{
struct vmbus_channel_open_channel *openMsg;
struct vmbus_channel_msginfo *openInfo = NULL;
@@ -176,30 +176,30 @@ int VmbusChannelOpen(struct vmbus_channel *NewChannel, u32 SendRingBufferSize,
/* ASSERT(!(SendRingBufferSize & (PAGE_SIZE - 1))); */
/* ASSERT(!(RecvRingBufferSize & (PAGE_SIZE - 1))); */
- NewChannel->OnChannelCallback = OnChannelCallback;
- NewChannel->ChannelCallbackContext = Context;
+ newchannel->OnChannelCallback = onchannelcallback;
+ newchannel->ChannelCallbackContext = context;
/* Allocate the ring buffer */
- out = osd_PageAlloc((SendRingBufferSize + RecvRingBufferSize)
+ out = osd_PageAlloc((send_ringbuffer_size + recv_ringbuffer_size)
>> PAGE_SHIFT);
if (!out)
return -ENOMEM;
/* ASSERT(((unsigned long)out & (PAGE_SIZE-1)) == 0); */
- in = (void *)((unsigned long)out + SendRingBufferSize);
+ in = (void *)((unsigned long)out + send_ringbuffer_size);
- NewChannel->RingBufferPages = out;
- NewChannel->RingBufferPageCount = (SendRingBufferSize +
- RecvRingBufferSize) >> PAGE_SHIFT;
+ newchannel->RingBufferPages = out;
+ newchannel->RingBufferPageCount = (send_ringbuffer_size +
+ recv_ringbuffer_size) >> PAGE_SHIFT;
- ret = RingBufferInit(&NewChannel->Outbound, out, SendRingBufferSize);
+ ret = RingBufferInit(&newchannel->Outbound, out, send_ringbuffer_size);
if (ret != 0) {
err = ret;
goto errorout;
}
- ret = RingBufferInit(&NewChannel->Inbound, in, RecvRingBufferSize);
+ ret = RingBufferInit(&newchannel->Inbound, in, recv_ringbuffer_size);
if (ret != 0) {
err = ret;
goto errorout;
@@ -208,15 +208,15 @@ int VmbusChannelOpen(struct vmbus_channel *NewChannel, u32 SendRingBufferSize,
/* Establish the gpadl for the ring buffer */
DPRINT_DBG(VMBUS, "Establishing ring buffer's gpadl for channel %p...",
- NewChannel);
+ newchannel);
- NewChannel->RingBufferGpadlHandle = 0;
+ newchannel->RingBufferGpadlHandle = 0;
- ret = VmbusChannelEstablishGpadl(NewChannel,
- NewChannel->Outbound.RingBuffer,
- SendRingBufferSize +
- RecvRingBufferSize,
- &NewChannel->RingBufferGpadlHandle);
+ ret = VmbusChannelEstablishGpadl(newchannel,
+ newchannel->Outbound.RingBuffer,
+ send_ringbuffer_size +
+ recv_ringbuffer_size,
+ &newchannel->RingBufferGpadlHandle);
if (ret != 0) {
err = ret;
@@ -225,13 +225,13 @@ int VmbusChannelOpen(struct vmbus_channel *NewChannel, u32 SendRingBufferSize,
DPRINT_DBG(VMBUS, "channel %p <relid %d gpadl 0x%x send ring %p "
"size %d recv ring %p size %d, downstreamoffset %d>",
- NewChannel, NewChannel->OfferMsg.ChildRelId,
- NewChannel->RingBufferGpadlHandle,
- NewChannel->Outbound.RingBuffer,
- NewChannel->Outbound.RingSize,
- NewChannel->Inbound.RingBuffer,
- NewChannel->Inbound.RingSize,
- SendRingBufferSize);
+ newchannel, newchannel->OfferMsg.ChildRelId,
+ newchannel->RingBufferGpadlHandle,
+ newchannel->Outbound.RingBuffer,
+ newchannel->Outbound.RingSize,
+ newchannel->Inbound.RingBuffer,
+ newchannel->Inbound.RingSize,
+ send_ringbuffer_size);
/* Create and init the channel open message */
openInfo = kmalloc(sizeof(*openInfo) +
@@ -250,20 +250,20 @@ int VmbusChannelOpen(struct vmbus_channel *NewChannel, u32 SendRingBufferSize,
openMsg = (struct vmbus_channel_open_channel *)openInfo->Msg;
openMsg->Header.MessageType = ChannelMessageOpenChannel;
- openMsg->OpenId = NewChannel->OfferMsg.ChildRelId; /* FIXME */
- openMsg->ChildRelId = NewChannel->OfferMsg.ChildRelId;
- openMsg->RingBufferGpadlHandle = NewChannel->RingBufferGpadlHandle;
- openMsg->DownstreamRingBufferPageOffset = SendRingBufferSize >>
+ openMsg->OpenId = newchannel->OfferMsg.ChildRelId; /* FIXME */
+ openMsg->ChildRelId = newchannel->OfferMsg.ChildRelId;
+ openMsg->RingBufferGpadlHandle = newchannel->RingBufferGpadlHandle;
+ openMsg->DownstreamRingBufferPageOffset = send_ringbuffer_size >>
PAGE_SHIFT;
openMsg->ServerContextAreaGpadlHandle = 0; /* TODO */
- if (UserDataLen > MAX_USER_DEFINED_BYTES) {
+ if (userdatalen > MAX_USER_DEFINED_BYTES) {
err = -EINVAL;
goto errorout;
}
- if (UserDataLen)
- memcpy(openMsg->UserData, UserData, UserDataLen);
+ if (userdatalen)
+ memcpy(openMsg->UserData, userdata, userdatalen);
spin_lock_irqsave(&gVmbusConnection.channelmsg_lock, flags);
list_add_tail(&openInfo->MsgListEntry,
@@ -283,10 +283,10 @@ int VmbusChannelOpen(struct vmbus_channel *NewChannel, u32 SendRingBufferSize,
osd_WaitEventWait(openInfo->WaitEvent);
if (openInfo->Response.OpenResult.Status == 0)
- DPRINT_INFO(VMBUS, "channel <%p> open success!!", NewChannel);
+ DPRINT_INFO(VMBUS, "channel <%p> open success!!", newchannel);
else
DPRINT_INFO(VMBUS, "channel <%p> open failed - %d!!",
- NewChannel, openInfo->Response.OpenResult.Status);
+ newchannel, openInfo->Response.OpenResult.Status);
Cleanup:
spin_lock_irqsave(&gVmbusConnection.channelmsg_lock, flags);
@@ -298,9 +298,9 @@ Cleanup:
return 0;
errorout:
- RingBufferCleanup(&NewChannel->Outbound);
- RingBufferCleanup(&NewChannel->Inbound);
- osd_PageFree(out, (SendRingBufferSize + RecvRingBufferSize)
+ RingBufferCleanup(&newchannel->Outbound);
+ RingBufferCleanup(&newchannel->Inbound);
+ osd_PageFree(out, (send_ringbuffer_size + recv_ringbuffer_size)
>> PAGE_SHIFT);
kfree(openInfo);
return err;
@@ -310,289 +310,292 @@ errorout:
* DumpGpadlBody - Dump the gpadl body message to the console for
* debugging purposes.
*/
-static void DumpGpadlBody(struct vmbus_channel_gpadl_body *Gpadl, u32 Len)
+static void DumpGpadlBody(struct vmbus_channel_gpadl_body *gpadl, u32 len)
{
int i;
- int pfnCount;
+ int pfncount;
- pfnCount = (Len - sizeof(struct vmbus_channel_gpadl_body)) /
+ pfncount = (len - sizeof(struct vmbus_channel_gpadl_body)) /
sizeof(u64);
- DPRINT_DBG(VMBUS, "gpadl body - len %d pfn count %d", Len, pfnCount);
+ DPRINT_DBG(VMBUS, "gpadl body - len %d pfn count %d", len, pfncount);
- for (i = 0; i < pfnCount; i++)
+ for (i = 0; i < pfncount; i++)
DPRINT_DBG(VMBUS, "gpadl body - %d) pfn %llu",
- i, Gpadl->Pfn[i]);
+ i, gpadl->Pfn[i]);
}
/*
* DumpGpadlHeader - Dump the gpadl header message to the console for
* debugging purposes.
*/
-static void DumpGpadlHeader(struct vmbus_channel_gpadl_header *Gpadl)
+static void DumpGpadlHeader(struct vmbus_channel_gpadl_header *gpadl)
{
int i, j;
- int pageCount;
+ int pagecount;
DPRINT_DBG(VMBUS,
"gpadl header - relid %d, range count %d, range buflen %d",
- Gpadl->ChildRelId, Gpadl->RangeCount, Gpadl->RangeBufLen);
- for (i = 0; i < Gpadl->RangeCount; i++) {
- pageCount = Gpadl->Range[i].ByteCount >> PAGE_SHIFT;
- pageCount = (pageCount > 26) ? 26 : pageCount;
+ gpadl->ChildRelId, gpadl->RangeCount, gpadl->RangeBufLen);
+ for (i = 0; i < gpadl->RangeCount; i++) {
+ pagecount = gpadl->Range[i].ByteCount >> PAGE_SHIFT;
+ pagecount = (pagecount > 26) ? 26 : pagecount;
DPRINT_DBG(VMBUS, "gpadl range %d - len %d offset %d "
- "page count %d", i, Gpadl->Range[i].ByteCount,
- Gpadl->Range[i].ByteOffset, pageCount);
+ "page count %d", i, gpadl->Range[i].ByteCount,
+ gpadl->Range[i].ByteOffset, pagecount);
- for (j = 0; j < pageCount; j++)
+ for (j = 0; j < pagecount; j++)
DPRINT_DBG(VMBUS, "%d) pfn %llu", j,
- Gpadl->Range[i].PfnArray[j]);
+ gpadl->Range[i].PfnArray[j]);
}
}
/*
* VmbusChannelCreateGpadlHeader - Creates a gpadl for the specified buffer
*/
-static int VmbusChannelCreateGpadlHeader(void *Kbuffer, u32 Size,
- struct vmbus_channel_msginfo **MsgInfo,
- u32 *MessageCount)
+static int VmbusChannelCreateGpadlHeader(void *kbuffer, u32 size,
+ struct vmbus_channel_msginfo **msginfo,
+ u32 *messagecount)
{
int i;
- int pageCount;
+ int pagecount;
unsigned long long pfn;
- struct vmbus_channel_gpadl_header *gpaHeader;
- struct vmbus_channel_gpadl_body *gpadlBody;
- struct vmbus_channel_msginfo *msgHeader;
- struct vmbus_channel_msginfo *msgBody = NULL;
- u32 msgSize;
+ struct vmbus_channel_gpadl_header *gpadl_header;
+ struct vmbus_channel_gpadl_body *gpadl_body;
+ struct vmbus_channel_msginfo *msgheader;
+ struct vmbus_channel_msginfo *msgbody = NULL;
+ u32 msgsize;
- int pfnSum, pfnCount, pfnLeft, pfnCurr, pfnSize;
+ int pfnsum, pfncount, pfnleft, pfncurr, pfnsize;
/* ASSERT((kbuffer & (PAGE_SIZE-1)) == 0); */
/* ASSERT((Size & (PAGE_SIZE-1)) == 0); */
- pageCount = Size >> PAGE_SHIFT;
- pfn = virt_to_phys(Kbuffer) >> PAGE_SHIFT;
+ pagecount = size >> PAGE_SHIFT;
+ pfn = virt_to_phys(kbuffer) >> PAGE_SHIFT;
/* do we need a gpadl body msg */
- pfnSize = MAX_SIZE_CHANNEL_MESSAGE -
+ pfnsize = MAX_SIZE_CHANNEL_MESSAGE -
sizeof(struct vmbus_channel_gpadl_header) -
sizeof(struct gpa_range);
- pfnCount = pfnSize / sizeof(u64);
+ pfncount = pfnsize / sizeof(u64);
- if (pageCount > pfnCount) {
+ if (pagecount > pfncount) {
/* we need a gpadl body */
/* fill in the header */
- msgSize = sizeof(struct vmbus_channel_msginfo) +
+ msgsize = sizeof(struct vmbus_channel_msginfo) +
sizeof(struct vmbus_channel_gpadl_header) +
- sizeof(struct gpa_range) + pfnCount * sizeof(u64);
- msgHeader = kzalloc(msgSize, GFP_KERNEL);
- if (!msgHeader)
+ sizeof(struct gpa_range) + pfncount * sizeof(u64);
+ msgheader = kzalloc(msgsize, GFP_KERNEL);
+ if (!msgheader)
goto nomem;
- INIT_LIST_HEAD(&msgHeader->SubMsgList);
- msgHeader->MessageSize = msgSize;
+ INIT_LIST_HEAD(&msgheader->SubMsgList);
+ msgheader->MessageSize = msgsize;
- gpaHeader = (struct vmbus_channel_gpadl_header *)msgHeader->Msg;
- gpaHeader->RangeCount = 1;
- gpaHeader->RangeBufLen = sizeof(struct gpa_range) +
- pageCount * sizeof(u64);
- gpaHeader->Range[0].ByteOffset = 0;
- gpaHeader->Range[0].ByteCount = Size;
- for (i = 0; i < pfnCount; i++)
- gpaHeader->Range[0].PfnArray[i] = pfn+i;
- *MsgInfo = msgHeader;
- *MessageCount = 1;
+ gpadl_header = (struct vmbus_channel_gpadl_header *)
+ msgheader->Msg;
+ gpadl_header->RangeCount = 1;
+ gpadl_header->RangeBufLen = sizeof(struct gpa_range) +
+ pagecount * sizeof(u64);
+ gpadl_header->Range[0].ByteOffset = 0;
+ gpadl_header->Range[0].ByteCount = size;
+ for (i = 0; i < pfncount; i++)
+ gpadl_header->Range[0].PfnArray[i] = pfn+i;
+ *msginfo = msgheader;
+ *messagecount = 1;
- pfnSum = pfnCount;
- pfnLeft = pageCount - pfnCount;
+ pfnsum = pfncount;
+ pfnleft = pagecount - pfncount;
/* how many pfns can we fit */
- pfnSize = MAX_SIZE_CHANNEL_MESSAGE -
+ pfnsize = MAX_SIZE_CHANNEL_MESSAGE -
sizeof(struct vmbus_channel_gpadl_body);
- pfnCount = pfnSize / sizeof(u64);
+ pfncount = pfnsize / sizeof(u64);
/* fill in the body */
- while (pfnLeft) {
- if (pfnLeft > pfnCount)
- pfnCurr = pfnCount;
+ while (pfnleft) {
+ if (pfnleft > pfncount)
+ pfncurr = pfncount;
else
- pfnCurr = pfnLeft;
+ pfncurr = pfnleft;
- msgSize = sizeof(struct vmbus_channel_msginfo) +
+ msgsize = sizeof(struct vmbus_channel_msginfo) +
sizeof(struct vmbus_channel_gpadl_body) +
- pfnCurr * sizeof(u64);
- msgBody = kzalloc(msgSize, GFP_KERNEL);
+ pfncurr * sizeof(u64);
+ msgbody = kzalloc(msgsize, GFP_KERNEL);
/* FIXME: we probably need to more if this fails */
- if (!msgBody)
+ if (!msgbody)
goto nomem;
- msgBody->MessageSize = msgSize;
- (*MessageCount)++;
- gpadlBody =
- (struct vmbus_channel_gpadl_body *)msgBody->Msg;
+ msgbody->MessageSize = msgsize;
+ (*messagecount)++;
+ gpadl_body =
+ (struct vmbus_channel_gpadl_body *)msgbody->Msg;
/*
* FIXME:
* Gpadl is u32 and we are using a pointer which could
* be 64-bit
*/
- /* gpadlBody->Gpadl = kbuffer; */
- for (i = 0; i < pfnCurr; i++)
- gpadlBody->Pfn[i] = pfn + pfnSum + i;
+ /* gpadl_body->Gpadl = kbuffer; */
+ for (i = 0; i < pfncurr; i++)
+ gpadl_body->Pfn[i] = pfn + pfnsum + i;
/* add to msg header */
- list_add_tail(&msgBody->MsgListEntry,
- &msgHeader->SubMsgList);
- pfnSum += pfnCurr;
- pfnLeft -= pfnCurr;
+ list_add_tail(&msgbody->MsgListEntry,
+ &msgheader->SubMsgList);
+ pfnsum += pfncurr;
+ pfnleft -= pfncurr;
}
} else {
/* everything fits in a header */
- msgSize = sizeof(struct vmbus_channel_msginfo) +
+ msgsize = sizeof(struct vmbus_channel_msginfo) +
sizeof(struct vmbus_channel_gpadl_header) +
- sizeof(struct gpa_range) + pageCount * sizeof(u64);
- msgHeader = kzalloc(msgSize, GFP_KERNEL);
- if (msgHeader == NULL)
+ sizeof(struct gpa_range) + pagecount * sizeof(u64);
+ msgheader = kzalloc(msgsize, GFP_KERNEL);
+ if (msgheader == NULL)
goto nomem;
- msgHeader->MessageSize = msgSize;
-
- gpaHeader = (struct vmbus_channel_gpadl_header *)msgHeader->Msg;
- gpaHeader->RangeCount = 1;
- gpaHeader->RangeBufLen = sizeof(struct gpa_range) +
- pageCount * sizeof(u64);
- gpaHeader->Range[0].ByteOffset = 0;
- gpaHeader->Range[0].ByteCount = Size;
- for (i = 0; i < pageCount; i++)
- gpaHeader->Range[0].PfnArray[i] = pfn+i;
-
- *MsgInfo = msgHeader;
- *MessageCount = 1;
+ msgheader->MessageSize = msgsize;
+
+ gpadl_header = (struct vmbus_channel_gpadl_header *)
+ msgheader->Msg;
+ gpadl_header->RangeCount = 1;
+ gpadl_header->RangeBufLen = sizeof(struct gpa_range) +
+ pagecount * sizeof(u64);
+ gpadl_header->Range[0].ByteOffset = 0;
+ gpadl_header->Range[0].ByteCount = size;
+ for (i = 0; i < pagecount; i++)
+ gpadl_header->Range[0].PfnArray[i] = pfn+i;
+
+ *msginfo = msgheader;
+ *messagecount = 1;
}
return 0;
nomem:
- kfree(msgHeader);
- kfree(msgBody);
+ kfree(msgheader);
+ kfree(msgbody);
return -ENOMEM;
}
/*
* VmbusChannelEstablishGpadl - Estabish a GPADL for the specified buffer
*
- * @Channel: a channel
- * @Kbuffer: from kmalloc
- * @Size: page-size multiple
- * @GpadlHandle: some funky thing
+ * @channel: a channel
+ * @kbuffer: from kmalloc
+ * @size: page-size multiple
+ * @gpadl_handle: some funky thing
*/
-int VmbusChannelEstablishGpadl(struct vmbus_channel *Channel, void *Kbuffer,
- u32 Size, u32 *GpadlHandle)
+int VmbusChannelEstablishGpadl(struct vmbus_channel *channel, void *kbuffer,
+ u32 size, u32 *gpadl_handle)
{
- struct vmbus_channel_gpadl_header *gpadlMsg;
- struct vmbus_channel_gpadl_body *gpadlBody;
+ struct vmbus_channel_gpadl_header *gpadlmsg;
+ struct vmbus_channel_gpadl_body *gpadl_body;
/* struct vmbus_channel_gpadl_created *gpadlCreated; */
- struct vmbus_channel_msginfo *msgInfo = NULL;
- struct vmbus_channel_msginfo *subMsgInfo;
- u32 msgCount;
+ struct vmbus_channel_msginfo *msginfo = NULL;
+ struct vmbus_channel_msginfo *submsginfo;
+ u32 msgcount;
struct list_head *curr;
- u32 nextGpadlHandle;
+ u32 next_gpadl_handle;
unsigned long flags;
int ret = 0;
- nextGpadlHandle = atomic_read(&gVmbusConnection.NextGpadlHandle);
+ next_gpadl_handle = atomic_read(&gVmbusConnection.NextGpadlHandle);
atomic_inc(&gVmbusConnection.NextGpadlHandle);
- ret = VmbusChannelCreateGpadlHeader(Kbuffer, Size, &msgInfo, &msgCount);
+ ret = VmbusChannelCreateGpadlHeader(kbuffer, size, &msginfo, &msgcount);
if (ret)
return ret;
- msgInfo->WaitEvent = osd_WaitEventCreate();
- if (!msgInfo->WaitEvent) {
+ msginfo->WaitEvent = osd_WaitEventCreate();
+ if (!msginfo->WaitEvent) {
ret = -ENOMEM;
goto Cleanup;
}
- gpadlMsg = (struct vmbus_channel_gpadl_header *)msgInfo->Msg;
- gpadlMsg->Header.MessageType = ChannelMessageGpadlHeader;
- gpadlMsg->ChildRelId = Channel->OfferMsg.ChildRelId;
- gpadlMsg->Gpadl = nextGpadlHandle;
+ gpadlmsg = (struct vmbus_channel_gpadl_header *)msginfo->Msg;
+ gpadlmsg->Header.MessageType = ChannelMessageGpadlHeader;
+ gpadlmsg->ChildRelId = channel->OfferMsg.ChildRelId;
+ gpadlmsg->Gpadl = next_gpadl_handle;
- DumpGpadlHeader(gpadlMsg);
+ DumpGpadlHeader(gpadlmsg);
spin_lock_irqsave(&gVmbusConnection.channelmsg_lock, flags);
- list_add_tail(&msgInfo->MsgListEntry,
+ list_add_tail(&msginfo->MsgListEntry,
&gVmbusConnection.ChannelMsgList);
spin_unlock_irqrestore(&gVmbusConnection.channelmsg_lock, flags);
DPRINT_DBG(VMBUS, "buffer %p, size %d msg cnt %d",
- Kbuffer, Size, msgCount);
+ kbuffer, size, msgcount);
DPRINT_DBG(VMBUS, "Sending GPADL Header - len %zd",
- msgInfo->MessageSize - sizeof(*msgInfo));
+ msginfo->MessageSize - sizeof(*msginfo));
- ret = VmbusPostMessage(gpadlMsg, msgInfo->MessageSize -
- sizeof(*msgInfo));
+ ret = VmbusPostMessage(gpadlmsg, msginfo->MessageSize -
+ sizeof(*msginfo));
if (ret != 0) {
DPRINT_ERR(VMBUS, "Unable to open channel - %d", ret);
goto Cleanup;
}
- if (msgCount > 1) {
- list_for_each(curr, &msgInfo->SubMsgList) {
+ if (msgcount > 1) {
+ list_for_each(curr, &msginfo->SubMsgList) {
/* FIXME: should this use list_entry() instead ? */
- subMsgInfo = (struct vmbus_channel_msginfo *)curr;
- gpadlBody =
- (struct vmbus_channel_gpadl_body *)subMsgInfo->Msg;
+ submsginfo = (struct vmbus_channel_msginfo *)curr;
+ gpadl_body =
+ (struct vmbus_channel_gpadl_body *)submsginfo->Msg;
- gpadlBody->Header.MessageType = ChannelMessageGpadlBody;
- gpadlBody->Gpadl = nextGpadlHandle;
+ gpadl_body->Header.MessageType =
+ ChannelMessageGpadlBody;
+ gpadl_body->Gpadl = next_gpadl_handle;
DPRINT_DBG(VMBUS, "Sending GPADL Body - len %zd",
- subMsgInfo->MessageSize -
- sizeof(*subMsgInfo));
-
- DumpGpadlBody(gpadlBody, subMsgInfo->MessageSize -
- sizeof(*subMsgInfo));
- ret = VmbusPostMessage(gpadlBody,
- subMsgInfo->MessageSize -
- sizeof(*subMsgInfo));
+ submsginfo->MessageSize -
+ sizeof(*submsginfo));
+
+ DumpGpadlBody(gpadl_body, submsginfo->MessageSize -
+ sizeof(*submsginfo));
+ ret = VmbusPostMessage(gpadl_body,
+ submsginfo->MessageSize -
+ sizeof(*submsginfo));
if (ret != 0)
goto Cleanup;
}
}
- osd_WaitEventWait(msgInfo->WaitEvent);
+ osd_WaitEventWait(msginfo->WaitEvent);
/* At this point, we received the gpadl created msg */
DPRINT_DBG(VMBUS, "Received GPADL created "
"(relid %d, status %d handle %x)",
- Channel->OfferMsg.ChildRelId,
- msgInfo->Response.GpadlCreated.CreationStatus,
- gpadlMsg->Gpadl);
+ channel->OfferMsg.ChildRelId,
+ msginfo->Response.GpadlCreated.CreationStatus,
+ gpadlmsg->Gpadl);
- *GpadlHandle = gpadlMsg->Gpadl;
+ *gpadl_handle = gpadlmsg->Gpadl;
Cleanup:
spin_lock_irqsave(&gVmbusConnection.channelmsg_lock, flags);
- list_del(&msgInfo->MsgListEntry);
+ list_del(&msginfo->MsgListEntry);
spin_unlock_irqrestore(&gVmbusConnection.channelmsg_lock, flags);
- kfree(msgInfo->WaitEvent);
- kfree(msgInfo);
+ kfree(msginfo->WaitEvent);
+ kfree(msginfo);
return ret;
}
/*
* VmbusChannelTeardownGpadl -Teardown the specified GPADL handle
*/
-int VmbusChannelTeardownGpadl(struct vmbus_channel *Channel, u32 GpadlHandle)
+int VmbusChannelTeardownGpadl(struct vmbus_channel *channel, u32 gpadl_handle)
{
struct vmbus_channel_gpadl_teardown *msg;
struct vmbus_channel_msginfo *info;
unsigned long flags;
int ret;
- /* ASSERT(GpadlHandle != 0); */
+ /* ASSERT(gpadl_handle != 0); */
info = kmalloc(sizeof(*info) +
sizeof(struct vmbus_channel_gpadl_teardown), GFP_KERNEL);
@@ -608,8 +611,8 @@ int VmbusChannelTeardownGpadl(struct vmbus_channel *Channel, u32 GpadlHandle)
msg = (struct vmbus_channel_gpadl_teardown *)info->Msg;
msg->Header.MessageType = ChannelMessageGpadlTeardown;
- msg->ChildRelId = Channel->OfferMsg.ChildRelId;
- msg->Gpadl = GpadlHandle;
+ msg->ChildRelId = channel->OfferMsg.ChildRelId;
+ msg->Gpadl = gpadl_handle;
spin_lock_irqsave(&gVmbusConnection.channelmsg_lock, flags);
list_add_tail(&info->MsgListEntry,
@@ -638,7 +641,7 @@ int VmbusChannelTeardownGpadl(struct vmbus_channel *Channel, u32 GpadlHandle)
/*
* VmbusChannelClose - Close the specified channel
*/
-void VmbusChannelClose(struct vmbus_channel *Channel)
+void VmbusChannelClose(struct vmbus_channel *channel)
{
struct vmbus_channel_close_channel *msg;
struct vmbus_channel_msginfo *info;
@@ -646,8 +649,8 @@ void VmbusChannelClose(struct vmbus_channel *Channel)
int ret;
/* Stop callback and cancel the timer asap */
- Channel->OnChannelCallback = NULL;
- del_timer_sync(&Channel->poll_timer);
+ channel->OnChannelCallback = NULL;
+ del_timer_sync(&channel->poll_timer);
/* Send a closing message */
info = kmalloc(sizeof(*info) +
@@ -661,7 +664,7 @@ void VmbusChannelClose(struct vmbus_channel *Channel)
msg = (struct vmbus_channel_close_channel *)info->Msg;
msg->Header.MessageType = ChannelMessageCloseChannel;
- msg->ChildRelId = Channel->OfferMsg.ChildRelId;
+ msg->ChildRelId = channel->OfferMsg.ChildRelId;
ret = VmbusPostMessage(msg, sizeof(struct vmbus_channel_close_channel));
if (ret != 0) {
@@ -670,17 +673,17 @@ void VmbusChannelClose(struct vmbus_channel *Channel)
}
/* Tear down the gpadl for the channel's ring buffer */
- if (Channel->RingBufferGpadlHandle)
- VmbusChannelTeardownGpadl(Channel,
- Channel->RingBufferGpadlHandle);
+ if (channel->RingBufferGpadlHandle)
+ VmbusChannelTeardownGpadl(channel,
+ channel->RingBufferGpadlHandle);
/* TODO: Send a msg to release the childRelId */
/* Cleanup the ring buffers for this channel */
- RingBufferCleanup(&Channel->Outbound);
- RingBufferCleanup(&Channel->Inbound);
+ RingBufferCleanup(&channel->Outbound);
+ RingBufferCleanup(&channel->Inbound);
- osd_PageFree(Channel->RingBufferPages, Channel->RingBufferPageCount);
+ osd_PageFree(channel->RingBufferPages, channel->RingBufferPageCount);
kfree(info);
@@ -690,65 +693,66 @@ void VmbusChannelClose(struct vmbus_channel *Channel)
* caller will free the channel
*/
- if (Channel->State == CHANNEL_OPEN_STATE) {
+ if (channel->State == CHANNEL_OPEN_STATE) {
spin_lock_irqsave(&gVmbusConnection.channel_lock, flags);
- list_del(&Channel->ListEntry);
+ list_del(&channel->ListEntry);
spin_unlock_irqrestore(&gVmbusConnection.channel_lock, flags);
- FreeVmbusChannel(Channel);
+ FreeVmbusChannel(channel);
}
}
/**
* VmbusChannelSendPacket() - Send the specified buffer on the given channel
- * @Channel: Pointer to vmbus_channel structure.
- * @Buffer: Pointer to the buffer you want to receive the data into.
- * @BufferLen: Maximum size of what the the buffer will hold
- * @RequestId: Identifier of the request
- * @vmbus_packet_type: Type of packet that is being send e.g. negotiate, time
+ * @channel: Pointer to vmbus_channel structure.
+ * @buffer: Pointer to the buffer you want to receive the data into.
+ * @bufferlen: Maximum size of what the the buffer will hold
+ * @requestid: Identifier of the request
+ * @type: Type of packet that is being send e.g. negotiate, time
* packet etc.
*
- * Sends data in @Buffer directly to hyper-v via the vmbus
+ * Sends data in @buffer directly to hyper-v via the vmbus
* This will send the data unparsed to hyper-v.
*
* Mainly used by Hyper-V drivers.
*/
-int VmbusChannelSendPacket(struct vmbus_channel *Channel, const void *Buffer,
- u32 BufferLen, u64 RequestId,
- enum vmbus_packet_type Type, u32 Flags)
+int VmbusChannelSendPacket(struct vmbus_channel *channel, const void *buffer,
+ u32 bufferlen, u64 requestid,
+ enum vmbus_packet_type type, u32 flags)
{
struct vmpacket_descriptor desc;
- u32 packetLen = sizeof(struct vmpacket_descriptor) + BufferLen;
- u32 packetLenAligned = ALIGN_UP(packetLen, sizeof(u64));
- struct scatterlist bufferList[3];
- u64 alignedData = 0;
+ u32 packetlen = sizeof(struct vmpacket_descriptor) + bufferlen;
+ u32 packetlen_aligned = ALIGN_UP(packetlen, sizeof(u64));
+ struct scatterlist bufferlist[3];
+ u64 aligned_data = 0;
int ret;
DPRINT_DBG(VMBUS, "channel %p buffer %p len %d",
- Channel, Buffer, BufferLen);
+ channel, buffer, bufferlen);
- DumpVmbusChannel(Channel);
+ DumpVmbusChannel(channel);
/* ASSERT((packetLenAligned - packetLen) < sizeof(u64)); */
/* Setup the descriptor */
- desc.Type = Type; /* VmbusPacketTypeDataInBand; */
- desc.Flags = Flags; /* VMBUS_DATA_PACKET_FLAG_COMPLETION_REQUESTED; */
+ desc.Type = type; /* VmbusPacketTypeDataInBand; */
+ desc.Flags = flags; /* VMBUS_DATA_PACKET_FLAG_COMPLETION_REQUESTED; */
/* in 8-bytes granularity */
desc.DataOffset8 = sizeof(struct vmpacket_descriptor) >> 3;
- desc.Length8 = (u16)(packetLenAligned >> 3);
- desc.TransactionId = RequestId;
+ desc.Length8 = (u16)(packetlen_aligned >> 3);
+ desc.TransactionId = requestid;
- sg_init_table(bufferList, 3);
- sg_set_buf(&bufferList[0], &desc, sizeof(struct vmpacket_descriptor));
- sg_set_buf(&bufferList[1], Buffer, BufferLen);
- sg_set_buf(&bufferList[2], &alignedData, packetLenAligned - packetLen);
+ sg_init_table(bufferlist, 3);
+ sg_set_buf(&bufferlist[0], &desc, sizeof(struct vmpacket_descriptor));
+ sg_set_buf(&bufferlist[1], buffer, bufferlen);
+ sg_set_buf(&bufferlist[2], &aligned_data,
+ packetlen_aligned - packetlen);
- ret = RingBufferWrite(&Channel->Outbound, bufferList, 3);
+ ret = RingBufferWrite(&channel->Outbound, bufferlist, 3);
/* TODO: We should determine if this is optional */
- if (ret == 0 && !GetRingBufferInterruptMask(&Channel->Outbound))
- VmbusChannelSetEvent(Channel);
+ if (ret == 0 && !GetRingBufferInterruptMask(&channel->Outbound))
+ VmbusChannelSetEvent(channel);
return ret;
}
@@ -758,61 +762,62 @@ EXPORT_SYMBOL(VmbusChannelSendPacket);
* VmbusChannelSendPacketPageBuffer - Send a range of single-page buffer
* packets using a GPADL Direct packet type.
*/
-int VmbusChannelSendPacketPageBuffer(struct vmbus_channel *Channel,
- struct hv_page_buffer PageBuffers[],
- u32 PageCount, void *Buffer, u32 BufferLen,
- u64 RequestId)
+int VmbusChannelSendPacketPageBuffer(struct vmbus_channel *channel,
+ struct hv_page_buffer pagebuffers[],
+ u32 pagecount, void *buffer, u32 bufferlen,
+ u64 requestid)
{
int ret;
int i;
struct vmbus_channel_packet_page_buffer desc;
- u32 descSize;
- u32 packetLen;
- u32 packetLenAligned;
- struct scatterlist bufferList[3];
- u64 alignedData = 0;
+ u32 descsize;
+ u32 packetlen;
+ u32 packetlen_aligned;
+ struct scatterlist bufferlist[3];
+ u64 aligned_data = 0;
- if (PageCount > MAX_PAGE_BUFFER_COUNT)
+ if (pagecount > MAX_PAGE_BUFFER_COUNT)
return -EINVAL;
- DumpVmbusChannel(Channel);
+ DumpVmbusChannel(channel);
/*
* Adjust the size down since vmbus_channel_packet_page_buffer is the
* largest size we support
*/
- descSize = sizeof(struct vmbus_channel_packet_page_buffer) -
- ((MAX_PAGE_BUFFER_COUNT - PageCount) *
+ descsize = sizeof(struct vmbus_channel_packet_page_buffer) -
+ ((MAX_PAGE_BUFFER_COUNT - pagecount) *
sizeof(struct hv_page_buffer));
- packetLen = descSize + BufferLen;
- packetLenAligned = ALIGN_UP(packetLen, sizeof(u64));
+ packetlen = descsize + bufferlen;
+ packetlen_aligned = ALIGN_UP(packetlen, sizeof(u64));
/* ASSERT((packetLenAligned - packetLen) < sizeof(u64)); */
/* Setup the descriptor */
desc.type = VmbusPacketTypeDataUsingGpaDirect;
desc.flags = VMBUS_DATA_PACKET_FLAG_COMPLETION_REQUESTED;
- desc.dataoffset8 = descSize >> 3; /* in 8-bytes grandularity */
- desc.length8 = (u16)(packetLenAligned >> 3);
- desc.transactionid = RequestId;
- desc.rangecount = PageCount;
-
- for (i = 0; i < PageCount; i++) {
- desc.range[i].Length = PageBuffers[i].Length;
- desc.range[i].Offset = PageBuffers[i].Offset;
- desc.range[i].Pfn = PageBuffers[i].Pfn;
+ desc.dataoffset8 = descsize >> 3; /* in 8-bytes grandularity */
+ desc.length8 = (u16)(packetlen_aligned >> 3);
+ desc.transactionid = requestid;
+ desc.rangecount = pagecount;
+
+ for (i = 0; i < pagecount; i++) {
+ desc.range[i].Length = pagebuffers[i].Length;
+ desc.range[i].Offset = pagebuffers[i].Offset;
+ desc.range[i].Pfn = pagebuffers[i].Pfn;
}
- sg_init_table(bufferList, 3);
- sg_set_buf(&bufferList[0], &desc, descSize);
- sg_set_buf(&bufferList[1], Buffer, BufferLen);
- sg_set_buf(&bufferList[2], &alignedData, packetLenAligned - packetLen);
+ sg_init_table(bufferlist, 3);
+ sg_set_buf(&bufferlist[0], &desc, descsize);
+ sg_set_buf(&bufferlist[1], buffer, bufferlen);
+ sg_set_buf(&bufferlist[2], &aligned_data,
+ packetlen_aligned - packetlen);
- ret = RingBufferWrite(&Channel->Outbound, bufferList, 3);
+ ret = RingBufferWrite(&channel->Outbound, bufferlist, 3);
/* TODO: We should determine if this is optional */
- if (ret == 0 && !GetRingBufferInterruptMask(&Channel->Outbound))
- VmbusChannelSetEvent(Channel);
+ if (ret == 0 && !GetRingBufferInterruptMask(&channel->Outbound))
+ VmbusChannelSetEvent(channel);
return ret;
}
@@ -821,64 +826,66 @@ int VmbusChannelSendPacketPageBuffer(struct vmbus_channel *Channel,
* VmbusChannelSendPacketMultiPageBuffer - Send a multi-page buffer packet
* using a GPADL Direct packet type.
*/
-int VmbusChannelSendPacketMultiPageBuffer(struct vmbus_channel *Channel,
- struct hv_multipage_buffer *MultiPageBuffer,
- void *Buffer, u32 BufferLen, u64 RequestId)
+int VmbusChannelSendPacketMultiPageBuffer(struct vmbus_channel *channel,
+ struct hv_multipage_buffer *multi_pagebuffer,
+ void *buffer, u32 bufferlen, u64 requestid)
{
int ret;
struct vmbus_channel_packet_multipage_buffer desc;
- u32 descSize;
- u32 packetLen;
- u32 packetLenAligned;
- struct scatterlist bufferList[3];
- u64 alignedData = 0;
- u32 PfnCount = NUM_PAGES_SPANNED(MultiPageBuffer->Offset,
- MultiPageBuffer->Length);
+ u32 descsize;
+ u32 packetlen;
+ u32 packetlen_aligned;
+ struct scatterlist bufferlist[3];
+ u64 aligned_data = 0;
+ u32 pfncount = NUM_PAGES_SPANNED(multi_pagebuffer->Offset,
+ multi_pagebuffer->Length);
- DumpVmbusChannel(Channel);
+ DumpVmbusChannel(channel);
DPRINT_DBG(VMBUS, "data buffer - offset %u len %u pfn count %u",
- MultiPageBuffer->Offset, MultiPageBuffer->Length, PfnCount);
+ multi_pagebuffer->Offset,
+ multi_pagebuffer->Length, pfncount);
- if ((PfnCount < 0) || (PfnCount > MAX_MULTIPAGE_BUFFER_COUNT))
+ if ((pfncount < 0) || (pfncount > MAX_MULTIPAGE_BUFFER_COUNT))
return -EINVAL;
/*
* Adjust the size down since vmbus_channel_packet_multipage_buffer is
* the largest size we support
*/
- descSize = sizeof(struct vmbus_channel_packet_multipage_buffer) -
- ((MAX_MULTIPAGE_BUFFER_COUNT - PfnCount) *
+ descsize = sizeof(struct vmbus_channel_packet_multipage_buffer) -
+ ((MAX_MULTIPAGE_BUFFER_COUNT - pfncount) *
sizeof(u64));
- packetLen = descSize + BufferLen;
- packetLenAligned = ALIGN_UP(packetLen, sizeof(u64));
+ packetlen = descsize + bufferlen;
+ packetlen_aligned = ALIGN_UP(packetlen, sizeof(u64));
/* ASSERT((packetLenAligned - packetLen) < sizeof(u64)); */
/* Setup the descriptor */
desc.type = VmbusPacketTypeDataUsingGpaDirect;
desc.flags = VMBUS_DATA_PACKET_FLAG_COMPLETION_REQUESTED;
- desc.dataoffset8 = descSize >> 3; /* in 8-bytes grandularity */
- desc.length8 = (u16)(packetLenAligned >> 3);
- desc.transactionid = RequestId;
+ desc.dataoffset8 = descsize >> 3; /* in 8-bytes grandularity */
+ desc.length8 = (u16)(packetlen_aligned >> 3);
+ desc.transactionid = requestid;
desc.rangecount = 1;
- desc.range.Length = MultiPageBuffer->Length;
- desc.range.Offset = MultiPageBuffer->Offset;
+ desc.range.Length = multi_pagebuffer->Length;
+ desc.range.Offset = multi_pagebuffer->Offset;
- memcpy(desc.range.PfnArray, MultiPageBuffer->PfnArray,
- PfnCount * sizeof(u64));
+ memcpy(desc.range.PfnArray, multi_pagebuffer->PfnArray,
+ pfncount * sizeof(u64));
- sg_init_table(bufferList, 3);
- sg_set_buf(&bufferList[0], &desc, descSize);
- sg_set_buf(&bufferList[1], Buffer, BufferLen);
- sg_set_buf(&bufferList[2], &alignedData, packetLenAligned - packetLen);
+ sg_init_table(bufferlist, 3);
+ sg_set_buf(&bufferlist[0], &desc, descsize);
+ sg_set_buf(&bufferlist[1], buffer, bufferlen);
+ sg_set_buf(&bufferlist[2], &aligned_data,
+ packetlen_aligned - packetlen);
- ret = RingBufferWrite(&Channel->Outbound, bufferList, 3);
+ ret = RingBufferWrite(&channel->Outbound, bufferlist, 3);
/* TODO: We should determine if this is optional */
- if (ret == 0 && !GetRingBufferInterruptMask(&Channel->Outbound))
- VmbusChannelSetEvent(Channel);
+ if (ret == 0 && !GetRingBufferInterruptMask(&channel->Outbound))
+ VmbusChannelSetEvent(channel);
return ret;
}
@@ -886,35 +893,35 @@ int VmbusChannelSendPacketMultiPageBuffer(struct vmbus_channel *Channel,
/**
* VmbusChannelRecvPacket() - Retrieve the user packet on the specified channel
- * @Channel: Pointer to vmbus_channel structure.
- * @Buffer: Pointer to the buffer you want to receive the data into.
- * @BufferLen: Maximum size of what the the buffer will hold
- * @BufferActualLen: The actual size of the data after it was received
- * @RequestId: Identifier of the request
+ * @channel: Pointer to vmbus_channel structure.
+ * @buffer: Pointer to the buffer you want to receive the data into.
+ * @bufferlen: Maximum size of what the the buffer will hold
+ * @buffer_actual_len: The actual size of the data after it was received
+ * @requestid: Identifier of the request
*
* Receives directly from the hyper-v vmbus and puts the data it received
* into Buffer. This will receive the data unparsed from hyper-v.
*
* Mainly used by Hyper-V drivers.
*/
-int VmbusChannelRecvPacket(struct vmbus_channel *Channel, void *Buffer,
- u32 BufferLen, u32 *BufferActualLen, u64 *RequestId)
+int VmbusChannelRecvPacket(struct vmbus_channel *channel, void *buffer,
+ u32 bufferlen, u32 *buffer_actual_len, u64 *requestid)
{
struct vmpacket_descriptor desc;
- u32 packetLen;
- u32 userLen;
+ u32 packetlen;
+ u32 userlen;
int ret;
unsigned long flags;
- *BufferActualLen = 0;
- *RequestId = 0;
+ *buffer_actual_len = 0;
+ *requestid = 0;
- spin_lock_irqsave(&Channel->inbound_lock, flags);
+ spin_lock_irqsave(&channel->inbound_lock, flags);
- ret = RingBufferPeek(&Channel->Inbound, &desc,
+ ret = RingBufferPeek(&channel->Inbound, &desc,
sizeof(struct vmpacket_descriptor));
if (ret != 0) {
- spin_unlock_irqrestore(&Channel->inbound_lock, flags);
+ spin_unlock_irqrestore(&channel->inbound_lock, flags);
/* DPRINT_DBG(VMBUS, "nothing to read!!"); */
return 0;
@@ -922,32 +929,32 @@ int VmbusChannelRecvPacket(struct vmbus_channel *Channel, void *Buffer,
/* VmbusChannelClearEvent(Channel); */
- packetLen = desc.Length8 << 3;
- userLen = packetLen - (desc.DataOffset8 << 3);
+ packetlen = desc.Length8 << 3;
+ userlen = packetlen - (desc.DataOffset8 << 3);
/* ASSERT(userLen > 0); */
DPRINT_DBG(VMBUS, "packet received on channel %p relid %d <type %d "
"flag %d tid %llx pktlen %d datalen %d> ",
- Channel, Channel->OfferMsg.ChildRelId, desc.Type,
- desc.Flags, desc.TransactionId, packetLen, userLen);
+ channel, channel->OfferMsg.ChildRelId, desc.Type,
+ desc.Flags, desc.TransactionId, packetlen, userlen);
- *BufferActualLen = userLen;
+ *buffer_actual_len = userlen;
- if (userLen > BufferLen) {
- spin_unlock_irqrestore(&Channel->inbound_lock, flags);
+ if (userlen > bufferlen) {
+ spin_unlock_irqrestore(&channel->inbound_lock, flags);
DPRINT_ERR(VMBUS, "buffer too small - got %d needs %d",
- BufferLen, userLen);
+ bufferlen, userlen);
return -1;
}
- *RequestId = desc.TransactionId;
+ *requestid = desc.TransactionId;
/* Copy over the packet to the user buffer */
- ret = RingBufferRead(&Channel->Inbound, Buffer, userLen,
+ ret = RingBufferRead(&channel->Inbound, buffer, userlen,
(desc.DataOffset8 << 3));
- spin_unlock_irqrestore(&Channel->inbound_lock, flags);
+ spin_unlock_irqrestore(&channel->inbound_lock, flags);
return 0;
}
@@ -956,25 +963,25 @@ EXPORT_SYMBOL(VmbusChannelRecvPacket);
/*
* VmbusChannelRecvPacketRaw - Retrieve the raw packet on the specified channel
*/
-int VmbusChannelRecvPacketRaw(struct vmbus_channel *Channel, void *Buffer,
- u32 BufferLen, u32 *BufferActualLen,
- u64 *RequestId)
+int VmbusChannelRecvPacketRaw(struct vmbus_channel *channel, void *buffer,
+ u32 bufferlen, u32 *buffer_actual_len,
+ u64 *requestid)
{
struct vmpacket_descriptor desc;
- u32 packetLen;
- u32 userLen;
+ u32 packetlen;
+ u32 userlen;
int ret;
unsigned long flags;
- *BufferActualLen = 0;
- *RequestId = 0;
+ *buffer_actual_len = 0;
+ *requestid = 0;
- spin_lock_irqsave(&Channel->inbound_lock, flags);
+ spin_lock_irqsave(&channel->inbound_lock, flags);
- ret = RingBufferPeek(&Channel->Inbound, &desc,
+ ret = RingBufferPeek(&channel->Inbound, &desc,
sizeof(struct vmpacket_descriptor));
if (ret != 0) {
- spin_unlock_irqrestore(&Channel->inbound_lock, flags);
+ spin_unlock_irqrestore(&channel->inbound_lock, flags);
/* DPRINT_DBG(VMBUS, "nothing to read!!"); */
return 0;
@@ -982,44 +989,44 @@ int VmbusChannelRecvPacketRaw(struct vmbus_channel *Channel, void *Buffer,
/* VmbusChannelClearEvent(Channel); */
- packetLen = desc.Length8 << 3;
- userLen = packetLen - (desc.DataOffset8 << 3);
+ packetlen = desc.Length8 << 3;
+ userlen = packetlen - (desc.DataOffset8 << 3);
DPRINT_DBG(VMBUS, "packet received on channel %p relid %d <type %d "
"flag %d tid %llx pktlen %d datalen %d> ",
- Channel, Channel->OfferMsg.ChildRelId, desc.Type,
- desc.Flags, desc.TransactionId, packetLen, userLen);
+ channel, channel->OfferMsg.ChildRelId, desc.Type,
+ desc.Flags, desc.TransactionId, packetlen, userlen);
- *BufferActualLen = packetLen;
+ *buffer_actual_len = packetlen;
- if (packetLen > BufferLen) {
- spin_unlock_irqrestore(&Channel->inbound_lock, flags);
+ if (packetlen > bufferlen) {
+ spin_unlock_irqrestore(&channel->inbound_lock, flags);
DPRINT_ERR(VMBUS, "buffer too small - needed %d bytes but "
- "got space for only %d bytes", packetLen, BufferLen);
+ "got space for only %d bytes", packetlen, bufferlen);
return -2;
}
- *RequestId = desc.TransactionId;
+ *requestid = desc.TransactionId;
/* Copy over the entire packet to the user buffer */
- ret = RingBufferRead(&Channel->Inbound, Buffer, packetLen, 0);
+ ret = RingBufferRead(&channel->Inbound, buffer, packetlen, 0);
- spin_unlock_irqrestore(&Channel->inbound_lock, flags);
+ spin_unlock_irqrestore(&channel->inbound_lock, flags);
return 0;
}
/*
* VmbusChannelOnChannelEvent - Channel event callback
*/
-void VmbusChannelOnChannelEvent(struct vmbus_channel *Channel)
+void VmbusChannelOnChannelEvent(struct vmbus_channel *channel)
{
- DumpVmbusChannel(Channel);
+ DumpVmbusChannel(channel);
/* ASSERT(Channel->OnChannelCallback); */
- Channel->OnChannelCallback(Channel->ChannelCallbackContext);
+ channel->OnChannelCallback(channel->ChannelCallbackContext);
- mod_timer(&Channel->poll_timer, jiffies + usecs_to_jiffies(100));
+ mod_timer(&channel->poll_timer, jiffies + usecs_to_jiffies(100));
}
/*
@@ -1036,9 +1043,9 @@ void VmbusChannelOnTimer(unsigned long data)
/*
* DumpVmbusChannel - Dump vmbus channel info to the console
*/
-static void DumpVmbusChannel(struct vmbus_channel *Channel)
+static void DumpVmbusChannel(struct vmbus_channel *channel)
{
- DPRINT_DBG(VMBUS, "Channel (%d)", Channel->OfferMsg.ChildRelId);
- DumpRingInfo(&Channel->Outbound, "Outbound ");
- DumpRingInfo(&Channel->Inbound, "Inbound ");
+ DPRINT_DBG(VMBUS, "Channel (%d)", channel->OfferMsg.ChildRelId);
+ DumpRingInfo(&channel->Outbound, "Outbound ");
+ DumpRingInfo(&channel->Inbound, "Inbound ");
}
--
1.6.3.2
--
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