/*
- *
* Copyright (c) 2009, Microsoft Corporation.
*
* This program is free software; you can redistribute it and/or modify it
*
* Authors:
* Hank Janssen <hjanssen@microsoft.com>
- *
*/
-
-#define KERNEL_2_6_27
-
#include <linux/kernel.h>
#include <linux/mm.h>
-#include "include/logging.h"
+#include <linux/delay.h>
+#include <linux/io.h>
+#include "osd.h"
+#include "logging.h"
#include "NetVsc.h"
#include "RndisFilter.h"
-//
-// Globals
-//
-static const char* gDriverName="netvsc";
+/* Globals */
+static const char *gDriverName = "netvsc";
-// {F8615163-DF3E-46c5-913F-F2D2F965ED0E}
-static const GUID gNetVscDeviceType={
- .Data = {0x63, 0x51, 0x61, 0xF8, 0x3E, 0xDF, 0xc5, 0x46, 0x91, 0x3F, 0xF2, 0xD2, 0xF9, 0x65, 0xED, 0x0E}
+/* {F8615163-DF3E-46c5-913F-F2D2F965ED0E} */
+static const struct hv_guid gNetVscDeviceType = {
+ .data = {
+ 0x63, 0x51, 0x61, 0xF8, 0x3E, 0xDF, 0xc5, 0x46,
+ 0x91, 0x3F, 0xF2, 0xD2, 0xF9, 0x65, 0xED, 0x0E
+ }
};
+static int NetVscOnDeviceAdd(struct hv_device *Device, void *AdditionalInfo);
+
+static int NetVscOnDeviceRemove(struct hv_device *Device);
+
+static void NetVscOnCleanup(struct hv_driver *Driver);
+
+static void NetVscOnChannelCallback(void *context);
+
+static int NetVscInitializeSendBufferWithNetVsp(struct hv_device *Device);
+
+static int NetVscInitializeReceiveBufferWithNetVsp(struct hv_device *Device);
+
+static int NetVscDestroySendBuffer(struct netvsc_device *NetDevice);
+
+static int NetVscDestroyReceiveBuffer(struct netvsc_device *NetDevice);
+
+static int NetVscConnectToVsp(struct hv_device *Device);
+
+static void NetVscOnSendCompletion(struct hv_device *Device,
+ struct vmpacket_descriptor *Packet);
+
+static int NetVscOnSend(struct hv_device *Device,
+ struct hv_netvsc_packet *Packet);
+
+static void NetVscOnReceive(struct hv_device *Device,
+ struct vmpacket_descriptor *Packet);
+
+static void NetVscOnReceiveCompletion(void *Context);
+
+static void NetVscSendReceiveCompletion(struct hv_device *Device,
+ u64 TransactionId);
-//
-// Internal routines
-//
-static int
-NetVscOnDeviceAdd(
- DEVICE_OBJECT *Device,
- void *AdditionalInfo
- );
-
-static int
-NetVscOnDeviceRemove(
- DEVICE_OBJECT *Device
- );
-
-static void
-NetVscOnCleanup(
- DRIVER_OBJECT *Driver
- );
-
-static void
-NetVscOnChannelCallback(
- void * context
- );
-
-static int
-NetVscInitializeSendBufferWithNetVsp(
- DEVICE_OBJECT *Device
- );
-
-static int
-NetVscInitializeReceiveBufferWithNetVsp(
- DEVICE_OBJECT *Device
- );
-
-static int
-NetVscDestroySendBuffer(
- NETVSC_DEVICE *NetDevice
- );
-
-static int
-NetVscDestroyReceiveBuffer(
- NETVSC_DEVICE *NetDevice
- );
-
-static int
-NetVscConnectToVsp(
- DEVICE_OBJECT *Device
- );
-
-static void
-NetVscOnSendCompletion(
- DEVICE_OBJECT *Device,
- VMPACKET_DESCRIPTOR *Packet
- );
-
-static int
-NetVscOnSend(
- DEVICE_OBJECT *Device,
- NETVSC_PACKET *Packet
- );
-
-static void
-NetVscOnReceive(
- DEVICE_OBJECT *Device,
- VMPACKET_DESCRIPTOR *Packet
- );
-
-static void
-NetVscOnReceiveCompletion(
- void * Context
- );
-
-static void
-NetVscSendReceiveCompletion(
- DEVICE_OBJECT *Device,
- u64 TransactionId
- );
-
-static inline NETVSC_DEVICE* AllocNetDevice(DEVICE_OBJECT *Device)
+
+static struct netvsc_device *AllocNetDevice(struct hv_device *Device)
{
- NETVSC_DEVICE *netDevice;
+ struct netvsc_device *netDevice;
- netDevice = kzalloc(sizeof(NETVSC_DEVICE), GFP_KERNEL);
+ netDevice = kzalloc(sizeof(struct netvsc_device), GFP_KERNEL);
if (!netDevice)
return NULL;
- // Set to 2 to allow both inbound and outbound traffic
- InterlockedCompareExchange(&netDevice->RefCount, 2, 0);
+ /* Set to 2 to allow both inbound and outbound traffic */
+ atomic_cmpxchg(&netDevice->RefCount, 0, 2);
netDevice->Device = Device;
Device->Extension = netDevice;
return netDevice;
}
-static inline void FreeNetDevice(NETVSC_DEVICE *Device)
+static void FreeNetDevice(struct netvsc_device *Device)
{
- ASSERT(Device->RefCount == 0);
+ ASSERT(atomic_read(&Device->RefCount) == 0);
Device->Device->Extension = NULL;
- MemFree(Device);
+ kfree(Device);
}
-// Get the net device object iff exists and its refcount > 1
-static inline NETVSC_DEVICE* GetOutboundNetDevice(DEVICE_OBJECT *Device)
+/* Get the net device object iff exists and its refcount > 1 */
+static struct netvsc_device *GetOutboundNetDevice(struct hv_device *Device)
{
- NETVSC_DEVICE *netDevice;
+ struct netvsc_device *netDevice;
- netDevice = (NETVSC_DEVICE*)Device->Extension;
- if (netDevice && netDevice->RefCount > 1)
- {
- InterlockedIncrement(&netDevice->RefCount);
- }
+ netDevice = Device->Extension;
+ if (netDevice && atomic_read(&netDevice->RefCount) > 1)
+ atomic_inc(&netDevice->RefCount);
else
- {
netDevice = NULL;
- }
return netDevice;
}
-// Get the net device object iff exists and its refcount > 0
-static inline NETVSC_DEVICE* GetInboundNetDevice(DEVICE_OBJECT *Device)
+/* Get the net device object iff exists and its refcount > 0 */
+static struct netvsc_device *GetInboundNetDevice(struct hv_device *Device)
{
- NETVSC_DEVICE *netDevice;
+ struct netvsc_device *netDevice;
- netDevice = (NETVSC_DEVICE*)Device->Extension;
- if (netDevice && netDevice->RefCount)
- {
- InterlockedIncrement(&netDevice->RefCount);
- }
+ netDevice = Device->Extension;
+ if (netDevice && atomic_read(&netDevice->RefCount))
+ atomic_inc(&netDevice->RefCount);
else
- {
netDevice = NULL;
- }
return netDevice;
}
-static inline void PutNetDevice(DEVICE_OBJECT *Device)
+static void PutNetDevice(struct hv_device *Device)
{
- NETVSC_DEVICE *netDevice;
+ struct netvsc_device *netDevice;
- netDevice = (NETVSC_DEVICE*)Device->Extension;
+ netDevice = Device->Extension;
ASSERT(netDevice);
- InterlockedDecrement(&netDevice->RefCount);
+ atomic_dec(&netDevice->RefCount);
}
-static inline NETVSC_DEVICE* ReleaseOutboundNetDevice(DEVICE_OBJECT *Device)
+static struct netvsc_device *ReleaseOutboundNetDevice(struct hv_device *Device)
{
- NETVSC_DEVICE *netDevice;
+ struct netvsc_device *netDevice;
- netDevice = (NETVSC_DEVICE*)Device->Extension;
+ netDevice = Device->Extension;
if (netDevice == NULL)
return NULL;
- // Busy wait until the ref drop to 2, then set it to 1
- while (InterlockedCompareExchange(&netDevice->RefCount, 1, 2) != 2)
- {
- Sleep(100);
- }
+ /* Busy wait until the ref drop to 2, then set it to 1 */
+ while (atomic_cmpxchg(&netDevice->RefCount, 2, 1) != 2)
+ udelay(100);
return netDevice;
}
-static inline NETVSC_DEVICE* ReleaseInboundNetDevice(DEVICE_OBJECT *Device)
+static struct netvsc_device *ReleaseInboundNetDevice(struct hv_device *Device)
{
- NETVSC_DEVICE *netDevice;
+ struct netvsc_device *netDevice;
- netDevice = (NETVSC_DEVICE*)Device->Extension;
+ netDevice = Device->Extension;
if (netDevice == NULL)
return NULL;
- // Busy wait until the ref drop to 1, then set it to 0
- while (InterlockedCompareExchange(&netDevice->RefCount, 0, 1) != 1)
- {
- Sleep(100);
- }
+ /* Busy wait until the ref drop to 1, then set it to 0 */
+ while (atomic_cmpxchg(&netDevice->RefCount, 1, 0) != 1)
+ udelay(100);
Device->Extension = NULL;
return netDevice;
}
-/*++;
-
-
-Name:
- NetVscInitialize()
-
-Description:
- Main entry point
-
---*/
-int
-NetVscInitialize(
- DRIVER_OBJECT *drv
- )
+/**
+ * NetVscInitialize - Main entry point
+ */
+int NetVscInitialize(struct hv_driver *drv)
{
- NETVSC_DRIVER_OBJECT* driver = (NETVSC_DRIVER_OBJECT*)drv;
- int ret=0;
+ struct netvsc_driver *driver = (struct netvsc_driver *)drv;
DPRINT_ENTER(NETVSC);
- DPRINT_DBG(NETVSC, "sizeof(NETVSC_PACKET)=%d, sizeof(NVSP_MESSAGE)=%d, sizeof(VMTRANSFER_PAGE_PACKET_HEADER)=%d",
- sizeof(NETVSC_PACKET), sizeof(NVSP_MESSAGE), sizeof(VMTRANSFER_PAGE_PACKET_HEADER));
+ DPRINT_DBG(NETVSC, "sizeof(struct hv_netvsc_packet)=%zd, "
+ "sizeof(struct nvsp_message)=%zd, "
+ "sizeof(struct vmtransfer_page_packet_header)=%zd",
+ sizeof(struct hv_netvsc_packet),
+ sizeof(struct nvsp_message),
+ sizeof(struct vmtransfer_page_packet_header));
- // Make sure we are at least 2 pages since 1 page is used for control
+ /* Make sure we are at least 2 pages since 1 page is used for control */
ASSERT(driver->RingBufferSize >= (PAGE_SIZE << 1));
drv->name = gDriverName;
- memcpy(&drv->deviceType, &gNetVscDeviceType, sizeof(GUID));
+ memcpy(&drv->deviceType, &gNetVscDeviceType, sizeof(struct hv_guid));
- // Make sure it is set by the caller
+ /* Make sure it is set by the caller */
ASSERT(driver->OnReceiveCallback);
ASSERT(driver->OnLinkStatusChanged);
- // Setup the dispatch table
- driver->Base.OnDeviceAdd = NetVscOnDeviceAdd;
- driver->Base.OnDeviceRemove = NetVscOnDeviceRemove;
- driver->Base.OnCleanup = NetVscOnCleanup;
+ /* Setup the dispatch table */
+ driver->Base.OnDeviceAdd = NetVscOnDeviceAdd;
+ driver->Base.OnDeviceRemove = NetVscOnDeviceRemove;
+ driver->Base.OnCleanup = NetVscOnCleanup;
- driver->OnSend = NetVscOnSend;
+ driver->OnSend = NetVscOnSend;
RndisFilterInit(driver);
DPRINT_EXIT(NETVSC);
- return ret;
+ return 0;
}
-static int
-NetVscInitializeReceiveBufferWithNetVsp(
- DEVICE_OBJECT *Device
- )
+static int NetVscInitializeReceiveBufferWithNetVsp(struct hv_device *Device)
{
- int ret=0;
- NETVSC_DEVICE *netDevice;
- NVSP_MESSAGE *initPacket;
+ int ret = 0;
+ struct netvsc_device *netDevice;
+ struct nvsp_message *initPacket;
DPRINT_ENTER(NETVSC);
netDevice = GetOutboundNetDevice(Device);
- if (!netDevice)
- {
- DPRINT_ERR(NETVSC, "unable to get net device...device being destroyed?");
+ if (!netDevice) {
+ DPRINT_ERR(NETVSC, "unable to get net device..."
+ "device being destroyed?");
DPRINT_EXIT(NETVSC);
return -1;
}
ASSERT(netDevice->ReceiveBufferSize > 0);
- ASSERT((netDevice->ReceiveBufferSize & (PAGE_SIZE-1)) == 0); // page-size grandularity
+ /* page-size grandularity */
+ ASSERT((netDevice->ReceiveBufferSize & (PAGE_SIZE - 1)) == 0);
- netDevice->ReceiveBuffer = PageAlloc(netDevice->ReceiveBufferSize >> PAGE_SHIFT);
- if (!netDevice->ReceiveBuffer)
- {
- DPRINT_ERR(NETVSC, "unable to allocate receive buffer of size %d", netDevice->ReceiveBufferSize);
+ netDevice->ReceiveBuffer =
+ osd_PageAlloc(netDevice->ReceiveBufferSize >> PAGE_SHIFT);
+ if (!netDevice->ReceiveBuffer) {
+ DPRINT_ERR(NETVSC,
+ "unable to allocate receive buffer of size %d",
+ netDevice->ReceiveBufferSize);
ret = -1;
goto Cleanup;
}
- ASSERT(((unsigned long)netDevice->ReceiveBuffer & (PAGE_SIZE-1)) == 0); // page-aligned buffer
+ /* page-aligned buffer */
+ ASSERT(((unsigned long)netDevice->ReceiveBuffer & (PAGE_SIZE - 1)) ==
+ 0);
DPRINT_INFO(NETVSC, "Establishing receive buffer's GPADL...");
- // Establish the gpadl handle for this buffer on this channel.
- // Note: This call uses the vmbus connection rather than the channel to establish
- // the gpadl handle.
+ /*
+ * Establish the gpadl handle for this buffer on this
+ * channel. Note: This call uses the vmbus connection rather
+ * than the channel to establish the gpadl handle.
+ */
ret = Device->Driver->VmbusChannelInterface.EstablishGpadl(Device,
- netDevice->ReceiveBuffer,
- netDevice->ReceiveBufferSize,
- &netDevice->ReceiveBufferGpadlHandle);
-
- if (ret != 0)
- {
- DPRINT_ERR(NETVSC, "unable to establish receive buffer's gpadl");
+ netDevice->ReceiveBuffer,
+ netDevice->ReceiveBufferSize,
+ &netDevice->ReceiveBufferGpadlHandle);
+ if (ret != 0) {
+ DPRINT_ERR(NETVSC,
+ "unable to establish receive buffer's gpadl");
goto Cleanup;
}
- //WaitEventWait(ext->ChannelInitEvent);
+ /* osd_WaitEventWait(ext->ChannelInitEvent); */
- // Notify the NetVsp of the gpadl handle
+ /* Notify the NetVsp of the gpadl handle */
DPRINT_INFO(NETVSC, "Sending NvspMessage1TypeSendReceiveBuffer...");
initPacket = &netDevice->ChannelInitPacket;
- memset(initPacket, 0, sizeof(NVSP_MESSAGE));
+ memset(initPacket, 0, sizeof(struct nvsp_message));
- initPacket->Header.MessageType = NvspMessage1TypeSendReceiveBuffer;
- initPacket->Messages.Version1Messages.SendReceiveBuffer.GpadlHandle = netDevice->ReceiveBufferGpadlHandle;
- initPacket->Messages.Version1Messages.SendReceiveBuffer.Id = NETVSC_RECEIVE_BUFFER_ID;
+ initPacket->Header.MessageType = NvspMessage1TypeSendReceiveBuffer;
+ initPacket->Messages.Version1Messages.SendReceiveBuffer.GpadlHandle = netDevice->ReceiveBufferGpadlHandle;
+ initPacket->Messages.Version1Messages.SendReceiveBuffer.Id = NETVSC_RECEIVE_BUFFER_ID;
- // Send the gpadl notification request
+ /* Send the gpadl notification request */
ret = Device->Driver->VmbusChannelInterface.SendPacket(Device,
- initPacket,
- sizeof(NVSP_MESSAGE),
- (unsigned long)initPacket,
- VmbusPacketTypeDataInBand,
- VMBUS_DATA_PACKET_FLAG_COMPLETION_REQUESTED);
- if (ret != 0)
- {
- DPRINT_ERR(NETVSC, "unable to send receive buffer's gpadl to netvsp");
+ initPacket,
+ sizeof(struct nvsp_message),
+ (unsigned long)initPacket,
+ VmbusPacketTypeDataInBand,
+ VMBUS_DATA_PACKET_FLAG_COMPLETION_REQUESTED);
+ if (ret != 0) {
+ DPRINT_ERR(NETVSC,
+ "unable to send receive buffer's gpadl to netvsp");
goto Cleanup;
}
- WaitEventWait(netDevice->ChannelInitEvent);
+ osd_WaitEventWait(netDevice->ChannelInitEvent);
- // Check the response
- if (initPacket->Messages.Version1Messages.SendReceiveBufferComplete.Status != NvspStatusSuccess)
- {
- DPRINT_ERR(NETVSC,
- "Unable to complete receive buffer initialzation with NetVsp - status %d",
- initPacket->Messages.Version1Messages.SendReceiveBufferComplete.Status);
+ /* Check the response */
+ if (initPacket->Messages.Version1Messages.SendReceiveBufferComplete.Status != NvspStatusSuccess) {
+ DPRINT_ERR(NETVSC, "Unable to complete receive buffer "
+ "initialzation with NetVsp - status %d",
+ initPacket->Messages.Version1Messages.SendReceiveBufferComplete.Status);
ret = -1;
goto Cleanup;
}
- // Parse the response
+ /* Parse the response */
ASSERT(netDevice->ReceiveSectionCount == 0);
ASSERT(netDevice->ReceiveSections == NULL);
netDevice->ReceiveSectionCount = initPacket->Messages.Version1Messages.SendReceiveBufferComplete.NumSections;
- netDevice->ReceiveSections = kmalloc(netDevice->ReceiveSectionCount * sizeof(NVSP_1_RECEIVE_BUFFER_SECTION), GFP_KERNEL);
- if (netDevice->ReceiveSections == NULL)
- {
+ netDevice->ReceiveSections = kmalloc(netDevice->ReceiveSectionCount * sizeof(struct nvsp_1_receive_buffer_section), GFP_KERNEL);
+ if (netDevice->ReceiveSections == NULL) {
ret = -1;
goto Cleanup;
}
memcpy(netDevice->ReceiveSections,
initPacket->Messages.Version1Messages.SendReceiveBufferComplete.Sections,
- netDevice->ReceiveSectionCount * sizeof(NVSP_1_RECEIVE_BUFFER_SECTION));
-
- DPRINT_INFO(NETVSC,
- "Receive sections info (count %d, offset %d, endoffset %d, suballoc size %d, num suballocs %d)",
- netDevice->ReceiveSectionCount, netDevice->ReceiveSections[0].Offset, netDevice->ReceiveSections[0].EndOffset,
- netDevice->ReceiveSections[0].SubAllocationSize, netDevice->ReceiveSections[0].NumSubAllocations);
-
-
- //For 1st release, there should only be 1 section that represents the entire receive buffer
+ netDevice->ReceiveSectionCount * sizeof(struct nvsp_1_receive_buffer_section));
+
+ DPRINT_INFO(NETVSC, "Receive sections info (count %d, offset %d, "
+ "endoffset %d, suballoc size %d, num suballocs %d)",
+ netDevice->ReceiveSectionCount,
+ netDevice->ReceiveSections[0].Offset,
+ netDevice->ReceiveSections[0].EndOffset,
+ netDevice->ReceiveSections[0].SubAllocationSize,
+ netDevice->ReceiveSections[0].NumSubAllocations);
+
+ /*
+ * For 1st release, there should only be 1 section that represents the
+ * entire receive buffer
+ */
if (netDevice->ReceiveSectionCount != 1 ||
- netDevice->ReceiveSections->Offset != 0 )
- {
+ netDevice->ReceiveSections->Offset != 0) {
ret = -1;
goto Cleanup;
}
return ret;
}
-
-static int
-NetVscInitializeSendBufferWithNetVsp(
- DEVICE_OBJECT *Device
- )
+static int NetVscInitializeSendBufferWithNetVsp(struct hv_device *Device)
{
- int ret=0;
- NETVSC_DEVICE *netDevice;
- NVSP_MESSAGE *initPacket;
+ int ret = 0;
+ struct netvsc_device *netDevice;
+ struct nvsp_message *initPacket;
DPRINT_ENTER(NETVSC);
netDevice = GetOutboundNetDevice(Device);
- if (!netDevice)
- {
- DPRINT_ERR(NETVSC, "unable to get net device...device being destroyed?");
+ if (!netDevice) {
+ DPRINT_ERR(NETVSC, "unable to get net device..."
+ "device being destroyed?");
DPRINT_EXIT(NETVSC);
return -1;
}
ASSERT(netDevice->SendBufferSize > 0);
- ASSERT((netDevice->SendBufferSize & (PAGE_SIZE-1)) == 0); // page-size grandularity
-
- netDevice->SendBuffer = PageAlloc(netDevice->SendBufferSize >> PAGE_SHIFT);
- if (!netDevice->SendBuffer)
- {
- DPRINT_ERR(NETVSC, "unable to allocate send buffer of size %d", netDevice->SendBufferSize);
+ /* page-size grandularity */
+ ASSERT((netDevice->SendBufferSize & (PAGE_SIZE - 1)) == 0);
+
+ netDevice->SendBuffer =
+ osd_PageAlloc(netDevice->SendBufferSize >> PAGE_SHIFT);
+ if (!netDevice->SendBuffer) {
+ DPRINT_ERR(NETVSC, "unable to allocate send buffer of size %d",
+ netDevice->SendBufferSize);
ret = -1;
goto Cleanup;
}
- ASSERT(((unsigned long)netDevice->SendBuffer & (PAGE_SIZE-1)) == 0); // page-aligned buffer
+ /* page-aligned buffer */
+ ASSERT(((unsigned long)netDevice->SendBuffer & (PAGE_SIZE - 1)) == 0);
DPRINT_INFO(NETVSC, "Establishing send buffer's GPADL...");
- // Establish the gpadl handle for this buffer on this channel.
- // Note: This call uses the vmbus connection rather than the channel to establish
- // the gpadl handle.
+ /*
+ * Establish the gpadl handle for this buffer on this
+ * channel. Note: This call uses the vmbus connection rather
+ * than the channel to establish the gpadl handle.
+ */
ret = Device->Driver->VmbusChannelInterface.EstablishGpadl(Device,
- netDevice->SendBuffer,
- netDevice->SendBufferSize,
- &netDevice->SendBufferGpadlHandle);
-
- if (ret != 0)
- {
+ netDevice->SendBuffer,
+ netDevice->SendBufferSize,
+ &netDevice->SendBufferGpadlHandle);
+ if (ret != 0) {
DPRINT_ERR(NETVSC, "unable to establish send buffer's gpadl");
goto Cleanup;
}
- //WaitEventWait(ext->ChannelInitEvent);
+ /* osd_WaitEventWait(ext->ChannelInitEvent); */
- // Notify the NetVsp of the gpadl handle
+ /* Notify the NetVsp of the gpadl handle */
DPRINT_INFO(NETVSC, "Sending NvspMessage1TypeSendSendBuffer...");
initPacket = &netDevice->ChannelInitPacket;
- memset(initPacket, 0, sizeof(NVSP_MESSAGE));
+ memset(initPacket, 0, sizeof(struct nvsp_message));
- initPacket->Header.MessageType = NvspMessage1TypeSendSendBuffer;
- initPacket->Messages.Version1Messages.SendReceiveBuffer.GpadlHandle = netDevice->SendBufferGpadlHandle;
- initPacket->Messages.Version1Messages.SendReceiveBuffer.Id = NETVSC_SEND_BUFFER_ID;
+ initPacket->Header.MessageType = NvspMessage1TypeSendSendBuffer;
+ initPacket->Messages.Version1Messages.SendReceiveBuffer.GpadlHandle = netDevice->SendBufferGpadlHandle;
+ initPacket->Messages.Version1Messages.SendReceiveBuffer.Id = NETVSC_SEND_BUFFER_ID;
- // Send the gpadl notification request
+ /* Send the gpadl notification request */
ret = Device->Driver->VmbusChannelInterface.SendPacket(Device,
- initPacket,
- sizeof(NVSP_MESSAGE),
- (unsigned long)initPacket,
- VmbusPacketTypeDataInBand,
- VMBUS_DATA_PACKET_FLAG_COMPLETION_REQUESTED);
- if (ret != 0)
- {
- DPRINT_ERR(NETVSC, "unable to send receive buffer's gpadl to netvsp");
+ initPacket, sizeof(struct nvsp_message),
+ (unsigned long)initPacket,
+ VmbusPacketTypeDataInBand,
+ VMBUS_DATA_PACKET_FLAG_COMPLETION_REQUESTED);
+ if (ret != 0) {
+ DPRINT_ERR(NETVSC,
+ "unable to send receive buffer's gpadl to netvsp");
goto Cleanup;
}
- WaitEventWait(netDevice->ChannelInitEvent);
+ osd_WaitEventWait(netDevice->ChannelInitEvent);
- // Check the response
- if (initPacket->Messages.Version1Messages.SendSendBufferComplete.Status != NvspStatusSuccess)
- {
- DPRINT_ERR(NETVSC,
- "Unable to complete send buffer initialzation with NetVsp - status %d",
- initPacket->Messages.Version1Messages.SendSendBufferComplete.Status);
+ /* Check the response */
+ if (initPacket->Messages.Version1Messages.SendSendBufferComplete.Status != NvspStatusSuccess) {
+ DPRINT_ERR(NETVSC, "Unable to complete send buffer "
+ "initialzation with NetVsp - status %d",
+ initPacket->Messages.Version1Messages.SendSendBufferComplete.Status);
ret = -1;
goto Cleanup;
}
return ret;
}
-static int
-NetVscDestroyReceiveBuffer(
- NETVSC_DEVICE *NetDevice
- )
+static int NetVscDestroyReceiveBuffer(struct netvsc_device *NetDevice)
{
- NVSP_MESSAGE *revokePacket;
- int ret=0;
-
+ struct nvsp_message *revokePacket;
+ int ret = 0;
DPRINT_ENTER(NETVSC);
- // If we got a section count, it means we received a SendReceiveBufferComplete msg
- // (ie sent NvspMessage1TypeSendReceiveBuffer msg) therefore, we need to send a revoke msg here
- if (NetDevice->ReceiveSectionCount)
- {
- DPRINT_INFO(NETVSC, "Sending NvspMessage1TypeRevokeReceiveBuffer...");
-
- // Send the revoke receive buffer
+ /*
+ * If we got a section count, it means we received a
+ * SendReceiveBufferComplete msg (ie sent
+ * NvspMessage1TypeSendReceiveBuffer msg) therefore, we need
+ * to send a revoke msg here
+ */
+ if (NetDevice->ReceiveSectionCount) {
+ DPRINT_INFO(NETVSC,
+ "Sending NvspMessage1TypeRevokeReceiveBuffer...");
+
+ /* Send the revoke receive buffer */
revokePacket = &NetDevice->RevokePacket;
- memset(revokePacket, 0, sizeof(NVSP_MESSAGE));
+ memset(revokePacket, 0, sizeof(struct nvsp_message));
revokePacket->Header.MessageType = NvspMessage1TypeRevokeReceiveBuffer;
revokePacket->Messages.Version1Messages.RevokeReceiveBuffer.Id = NETVSC_RECEIVE_BUFFER_ID;
- ret = NetDevice->Device->Driver->VmbusChannelInterface.SendPacket(NetDevice->Device,
- revokePacket,
- sizeof(NVSP_MESSAGE),
- (unsigned long)revokePacket,
- VmbusPacketTypeDataInBand,
- 0);
- // If we failed here, we might as well return and have a leak rather than continue and a bugchk
- if (ret != 0)
- {
- DPRINT_ERR(NETVSC, "unable to send revoke receive buffer to netvsp");
+ ret = NetDevice->Device->Driver->VmbusChannelInterface.SendPacket(
+ NetDevice->Device,
+ revokePacket,
+ sizeof(struct nvsp_message),
+ (unsigned long)revokePacket,
+ VmbusPacketTypeDataInBand, 0);
+ /*
+ * If we failed here, we might as well return and
+ * have a leak rather than continue and a bugchk
+ */
+ if (ret != 0) {
+ DPRINT_ERR(NETVSC, "unable to send revoke receive "
+ "buffer to netvsp");
DPRINT_EXIT(NETVSC);
return -1;
}
}
- // Teardown the gpadl on the vsp end
- if (NetDevice->ReceiveBufferGpadlHandle)
- {
+ /* Teardown the gpadl on the vsp end */
+ if (NetDevice->ReceiveBufferGpadlHandle) {
DPRINT_INFO(NETVSC, "Tearing down receive buffer's GPADL...");
- ret = NetDevice->Device->Driver->VmbusChannelInterface.TeardownGpadl(NetDevice->Device,
- NetDevice->ReceiveBufferGpadlHandle);
+ ret = NetDevice->Device->Driver->VmbusChannelInterface.TeardownGpadl(
+ NetDevice->Device,
+ NetDevice->ReceiveBufferGpadlHandle);
- // If we failed here, we might as well return and have a leak rather than continue and a bugchk
- if (ret != 0)
- {
- DPRINT_ERR(NETVSC, "unable to teardown receive buffer's gpadl");
+ /* If we failed here, we might as well return and have a leak rather than continue and a bugchk */
+ if (ret != 0) {
+ DPRINT_ERR(NETVSC,
+ "unable to teardown receive buffer's gpadl");
DPRINT_EXIT(NETVSC);
return -1;
}
NetDevice->ReceiveBufferGpadlHandle = 0;
}
- if (NetDevice->ReceiveBuffer)
- {
+ if (NetDevice->ReceiveBuffer) {
DPRINT_INFO(NETVSC, "Freeing up receive buffer...");
- // Free up the receive buffer
- PageFree(NetDevice->ReceiveBuffer, NetDevice->ReceiveBufferSize >> PAGE_SHIFT);
+ /* Free up the receive buffer */
+ osd_PageFree(NetDevice->ReceiveBuffer,
+ NetDevice->ReceiveBufferSize >> PAGE_SHIFT);
NetDevice->ReceiveBuffer = NULL;
}
- if (NetDevice->ReceiveSections)
- {
- MemFree(NetDevice->ReceiveSections);
- NetDevice->ReceiveSections = NULL;
+ if (NetDevice->ReceiveSections) {
NetDevice->ReceiveSectionCount = 0;
+ kfree(NetDevice->ReceiveSections);
+ NetDevice->ReceiveSections = NULL;
}
DPRINT_EXIT(NETVSC);
return ret;
}
-
-
-
-static int
-NetVscDestroySendBuffer(
- NETVSC_DEVICE *NetDevice
- )
+static int NetVscDestroySendBuffer(struct netvsc_device *NetDevice)
{
- NVSP_MESSAGE *revokePacket;
- int ret=0;
-
+ struct nvsp_message *revokePacket;
+ int ret = 0;
DPRINT_ENTER(NETVSC);
- // If we got a section count, it means we received a SendReceiveBufferComplete msg
- // (ie sent NvspMessage1TypeSendReceiveBuffer msg) therefore, we need to send a revoke msg here
- if (NetDevice->SendSectionSize)
- {
- DPRINT_INFO(NETVSC, "Sending NvspMessage1TypeRevokeSendBuffer...");
-
- // Send the revoke send buffer
+ /*
+ * If we got a section count, it means we received a
+ * SendReceiveBufferComplete msg (ie sent
+ * NvspMessage1TypeSendReceiveBuffer msg) therefore, we need
+ * to send a revoke msg here
+ */
+ if (NetDevice->SendSectionSize) {
+ DPRINT_INFO(NETVSC,
+ "Sending NvspMessage1TypeRevokeSendBuffer...");
+
+ /* Send the revoke send buffer */
revokePacket = &NetDevice->RevokePacket;
- memset(revokePacket, 0, sizeof(NVSP_MESSAGE));
+ memset(revokePacket, 0, sizeof(struct nvsp_message));
revokePacket->Header.MessageType = NvspMessage1TypeRevokeSendBuffer;
revokePacket->Messages.Version1Messages.RevokeSendBuffer.Id = NETVSC_SEND_BUFFER_ID;
ret = NetDevice->Device->Driver->VmbusChannelInterface.SendPacket(NetDevice->Device,
- revokePacket,
- sizeof(NVSP_MESSAGE),
- (unsigned long)revokePacket,
- VmbusPacketTypeDataInBand,
- 0);
- // If we failed here, we might as well return and have a leak rather than continue and a bugchk
- if (ret != 0)
- {
- DPRINT_ERR(NETVSC, "unable to send revoke send buffer to netvsp");
+ revokePacket,
+ sizeof(struct nvsp_message),
+ (unsigned long)revokePacket,
+ VmbusPacketTypeDataInBand, 0);
+ /*
+ * If we failed here, we might as well return and have a leak
+ * rather than continue and a bugchk
+ */
+ if (ret != 0) {
+ DPRINT_ERR(NETVSC, "unable to send revoke send buffer "
+ "to netvsp");
DPRINT_EXIT(NETVSC);
return -1;
}
}
- // Teardown the gpadl on the vsp end
- if (NetDevice->SendBufferGpadlHandle)
- {
+ /* Teardown the gpadl on the vsp end */
+ if (NetDevice->SendBufferGpadlHandle) {
DPRINT_INFO(NETVSC, "Tearing down send buffer's GPADL...");
- ret = NetDevice->Device->Driver->VmbusChannelInterface.TeardownGpadl(NetDevice->Device,
- NetDevice->SendBufferGpadlHandle);
+ ret = NetDevice->Device->Driver->VmbusChannelInterface.TeardownGpadl(NetDevice->Device, NetDevice->SendBufferGpadlHandle);
- // If we failed here, we might as well return and have a leak rather than continue and a bugchk
- if (ret != 0)
- {
- DPRINT_ERR(NETVSC, "unable to teardown send buffer's gpadl");
+ /*
+ * If we failed here, we might as well return and have a leak
+ * rather than continue and a bugchk
+ */
+ if (ret != 0) {
+ DPRINT_ERR(NETVSC, "unable to teardown send buffer's "
+ "gpadl");
DPRINT_EXIT(NETVSC);
return -1;
}
NetDevice->SendBufferGpadlHandle = 0;
}
- if (NetDevice->SendBuffer)
- {
+ if (NetDevice->SendBuffer) {
DPRINT_INFO(NETVSC, "Freeing up send buffer...");
- // Free up the receive buffer
- PageFree(NetDevice->SendBuffer, NetDevice->SendBufferSize >> PAGE_SHIFT);
+ /* Free up the receive buffer */
+ osd_PageFree(NetDevice->SendBuffer,
+ NetDevice->SendBufferSize >> PAGE_SHIFT);
NetDevice->SendBuffer = NULL;
}
}
-
-static int
-NetVscConnectToVsp(
- DEVICE_OBJECT *Device
- )
+static int NetVscConnectToVsp(struct hv_device *Device)
{
- int ret=0;
- NETVSC_DEVICE *netDevice;
- NVSP_MESSAGE *initPacket;
+ int ret;
+ struct netvsc_device *netDevice;
+ struct nvsp_message *initPacket;
int ndisVersion;
DPRINT_ENTER(NETVSC);
netDevice = GetOutboundNetDevice(Device);
- if (!netDevice)
- {
- DPRINT_ERR(NETVSC, "unable to get net device...device being destroyed?");
+ if (!netDevice) {
+ DPRINT_ERR(NETVSC, "unable to get net device..."
+ "device being destroyed?");
DPRINT_EXIT(NETVSC);
return -1;
}
initPacket = &netDevice->ChannelInitPacket;
- memset(initPacket, 0, sizeof(NVSP_MESSAGE));
+ memset(initPacket, 0, sizeof(struct nvsp_message));
initPacket->Header.MessageType = NvspMessageTypeInit;
- initPacket->Messages.InitMessages.Init.MinProtocolVersion = NVSP_MIN_PROTOCOL_VERSION;
- initPacket->Messages.InitMessages.Init.MaxProtocolVersion = NVSP_MAX_PROTOCOL_VERSION;
+ initPacket->Messages.InitMessages.Init.MinProtocolVersion = NVSP_MIN_PROTOCOL_VERSION;
+ initPacket->Messages.InitMessages.Init.MaxProtocolVersion = NVSP_MAX_PROTOCOL_VERSION;
DPRINT_INFO(NETVSC, "Sending NvspMessageTypeInit...");
- // Send the init request
+ /* Send the init request */
ret = Device->Driver->VmbusChannelInterface.SendPacket(Device,
- initPacket,
- sizeof(NVSP_MESSAGE),
- (unsigned long)initPacket,
- VmbusPacketTypeDataInBand,
- VMBUS_DATA_PACKET_FLAG_COMPLETION_REQUESTED);
-
- if( ret != 0)
- {
+ initPacket,
+ sizeof(struct nvsp_message),
+ (unsigned long)initPacket,
+ VmbusPacketTypeDataInBand,
+ VMBUS_DATA_PACKET_FLAG_COMPLETION_REQUESTED);
+
+ if (ret != 0) {
DPRINT_ERR(NETVSC, "unable to send NvspMessageTypeInit");
goto Cleanup;
}
- WaitEventWait(netDevice->ChannelInitEvent);
+ osd_WaitEventWait(netDevice->ChannelInitEvent);
- // Now, check the response
- //ASSERT(initPacket->Messages.InitMessages.InitComplete.MaximumMdlChainLength <= MAX_MULTIPAGE_BUFFER_COUNT);
+ /* Now, check the response */
+ /* ASSERT(initPacket->Messages.InitMessages.InitComplete.MaximumMdlChainLength <= MAX_MULTIPAGE_BUFFER_COUNT); */
DPRINT_INFO(NETVSC, "NvspMessageTypeInit status(%d) max mdl chain (%d)",
initPacket->Messages.InitMessages.InitComplete.Status,
initPacket->Messages.InitMessages.InitComplete.MaximumMdlChainLength);
- if (initPacket->Messages.InitMessages.InitComplete.Status != NvspStatusSuccess)
- {
- DPRINT_ERR(NETVSC, "unable to initialize with netvsp (status 0x%x)", initPacket->Messages.InitMessages.InitComplete.Status);
+ if (initPacket->Messages.InitMessages.InitComplete.Status !=
+ NvspStatusSuccess) {
+ DPRINT_ERR(NETVSC,
+ "unable to initialize with netvsp (status 0x%x)",
+ initPacket->Messages.InitMessages.InitComplete.Status);
ret = -1;
goto Cleanup;
}
- if (initPacket->Messages.InitMessages.InitComplete.NegotiatedProtocolVersion != NVSP_PROTOCOL_VERSION_1)
- {
- DPRINT_ERR(NETVSC, "unable to initialize with netvsp (version expected 1 got %d)",
- initPacket->Messages.InitMessages.InitComplete.NegotiatedProtocolVersion);
+ if (initPacket->Messages.InitMessages.InitComplete.NegotiatedProtocolVersion != NVSP_PROTOCOL_VERSION_1) {
+ DPRINT_ERR(NETVSC, "unable to initialize with netvsp "
+ "(version expected 1 got %d)",
+ initPacket->Messages.InitMessages.InitComplete.NegotiatedProtocolVersion);
ret = -1;
goto Cleanup;
}
DPRINT_INFO(NETVSC, "Sending NvspMessage1TypeSendNdisVersion...");
- // Send the ndis version
- memset(initPacket, 0, sizeof(NVSP_MESSAGE));
+ /* Send the ndis version */
+ memset(initPacket, 0, sizeof(struct nvsp_message));
- ndisVersion = 0x00050000;
+ ndisVersion = 0x00050000;
- initPacket->Header.MessageType = NvspMessage1TypeSendNdisVersion;
- initPacket->Messages.Version1Messages.SendNdisVersion.NdisMajorVersion = (ndisVersion & 0xFFFF0000) >> 16;
- initPacket->Messages.Version1Messages.SendNdisVersion.NdisMinorVersion = ndisVersion & 0xFFFF;
+ initPacket->Header.MessageType = NvspMessage1TypeSendNdisVersion;
+ initPacket->Messages.Version1Messages.SendNdisVersion.NdisMajorVersion =
+ (ndisVersion & 0xFFFF0000) >> 16;
+ initPacket->Messages.Version1Messages.SendNdisVersion.NdisMinorVersion =
+ ndisVersion & 0xFFFF;
- // Send the init request
+ /* Send the init request */
ret = Device->Driver->VmbusChannelInterface.SendPacket(Device,
- initPacket,
- sizeof(NVSP_MESSAGE),
- (unsigned long)initPacket,
- VmbusPacketTypeDataInBand,
- 0);
- if (ret != 0)
- {
- DPRINT_ERR(NETVSC, "unable to send NvspMessage1TypeSendNdisVersion");
+ initPacket,
+ sizeof(struct nvsp_message),
+ (unsigned long)initPacket,
+ VmbusPacketTypeDataInBand, 0);
+ if (ret != 0) {
+ DPRINT_ERR(NETVSC,
+ "unable to send NvspMessage1TypeSendNdisVersion");
ret = -1;
goto Cleanup;
}
- //
- // BUGBUG - We have to wait for the above msg since the netvsp uses KMCL which acknowledges packet (completion packet)
- // since our Vmbus always set the VMBUS_DATA_PACKET_FLAG_COMPLETION_REQUESTED flag
- //WaitEventWait(NetVscChannel->ChannelInitEvent);
-
- // Post the big receive buffer to NetVSP
+ /*
+ * BUGBUG - We have to wait for the above msg since the
+ * netvsp uses KMCL which acknowledges packet (completion
+ * packet) since our Vmbus always set the
+ * VMBUS_DATA_PACKET_FLAG_COMPLETION_REQUESTED flag
+ */
+ /* osd_WaitEventWait(NetVscChannel->ChannelInitEvent); */
+
+ /* Post the big receive buffer to NetVSP */
ret = NetVscInitializeReceiveBufferWithNetVsp(Device);
if (ret == 0)
- {
ret = NetVscInitializeSendBufferWithNetVsp(Device);
- }
Cleanup:
PutNetDevice(Device);
return ret;
}
-static void
-NetVscDisconnectFromVsp(
- NETVSC_DEVICE *NetDevice
- )
+static void NetVscDisconnectFromVsp(struct netvsc_device *NetDevice)
{
DPRINT_ENTER(NETVSC);
DPRINT_EXIT(NETVSC);
}
-
-/*++
-
-Name:
- NetVscOnDeviceAdd()
-
-Description:
- Callback when the device belonging to this driver is added
-
---*/
-int
-NetVscOnDeviceAdd(
- DEVICE_OBJECT *Device,
- void *AdditionalInfo
- )
+/**
+ * NetVscOnDeviceAdd - Callback when the device belonging to this driver is added
+ */
+static int NetVscOnDeviceAdd(struct hv_device *Device, void *AdditionalInfo)
{
- int ret=0;
+ int ret = 0;
int i;
-
- NETVSC_DEVICE* netDevice;
- NETVSC_PACKET* packet;
- LIST_ENTRY *entry;
-
- NETVSC_DRIVER_OBJECT *netDriver = (NETVSC_DRIVER_OBJECT*) Device->Driver;;
+ struct netvsc_device *netDevice;
+ struct hv_netvsc_packet *packet, *pos;
+ struct netvsc_driver *netDriver =
+ (struct netvsc_driver *)Device->Driver;
DPRINT_ENTER(NETVSC);
netDevice = AllocNetDevice(Device);
- if (!netDevice)
- {
+ if (!netDevice) {
ret = -1;
goto Cleanup;
}
DPRINT_DBG(NETVSC, "netvsc channel object allocated - %p", netDevice);
- // Initialize the NetVSC channel extension
+ /* Initialize the NetVSC channel extension */
netDevice->ReceiveBufferSize = NETVSC_RECEIVE_BUFFER_SIZE;
- netDevice->ReceivePacketListLock = SpinlockCreate();
+ spin_lock_init(&netDevice->receive_packet_list_lock);
netDevice->SendBufferSize = NETVSC_SEND_BUFFER_SIZE;
- INITIALIZE_LIST_HEAD(&netDevice->ReceivePacketList);
+ INIT_LIST_HEAD(&netDevice->ReceivePacketList);
- for (i=0; i < NETVSC_RECEIVE_PACKETLIST_COUNT; i++)
- {
- packet = kzalloc(sizeof(NETVSC_PACKET) + (NETVSC_RECEIVE_SG_COUNT* sizeof(PAGE_BUFFER)), GFP_KERNEL);
- if (!packet)
- {
- DPRINT_DBG(NETVSC, "unable to allocate netvsc pkts for receive pool (wanted %d got %d)", NETVSC_RECEIVE_PACKETLIST_COUNT, i);
+ for (i = 0; i < NETVSC_RECEIVE_PACKETLIST_COUNT; i++) {
+ packet = kzalloc(sizeof(struct hv_netvsc_packet) +
+ (NETVSC_RECEIVE_SG_COUNT *
+ sizeof(struct hv_page_buffer)), GFP_KERNEL);
+ if (!packet) {
+ DPRINT_DBG(NETVSC, "unable to allocate netvsc pkts "
+ "for receive pool (wanted %d got %d)",
+ NETVSC_RECEIVE_PACKETLIST_COUNT, i);
break;
}
-
- INSERT_TAIL_LIST(&netDevice->ReceivePacketList, &packet->ListEntry);
+ list_add_tail(&packet->ListEntry,
+ &netDevice->ReceivePacketList);
}
- netDevice->ChannelInitEvent = WaitEventCreate();
+ netDevice->ChannelInitEvent = osd_WaitEventCreate();
- // Open the channel
+ /* Open the channel */
ret = Device->Driver->VmbusChannelInterface.Open(Device,
- netDriver->RingBufferSize,
- netDriver->RingBufferSize,
- NULL, 0,
- NetVscOnChannelCallback,
- Device
- );
+ netDriver->RingBufferSize,
+ netDriver->RingBufferSize,
+ NULL, 0,
+ NetVscOnChannelCallback,
+ Device);
- if (ret != 0)
- {
+ if (ret != 0) {
DPRINT_ERR(NETVSC, "unable to open channel: %d", ret);
ret = -1;
goto Cleanup;
}
- // Channel is opened
+ /* Channel is opened */
DPRINT_INFO(NETVSC, "*** NetVSC channel opened successfully! ***");
- // Connect with the NetVsp
+ /* Connect with the NetVsp */
ret = NetVscConnectToVsp(Device);
- if (ret != 0)
- {
+ if (ret != 0) {
DPRINT_ERR(NETVSC, "unable to connect to NetVSP - %d", ret);
ret = -1;
goto Close;
}
- DPRINT_INFO(NETVSC, "*** NetVSC channel handshake result - %d ***", ret);
+ DPRINT_INFO(NETVSC, "*** NetVSC channel handshake result - %d ***",
+ ret);
DPRINT_EXIT(NETVSC);
return ret;
Close:
- // Now, we can close the channel safely
+ /* Now, we can close the channel safely */
Device->Driver->VmbusChannelInterface.Close(Device);
Cleanup:
- if (netDevice)
- {
- WaitEventClose(netDevice->ChannelInitEvent);
+ if (netDevice) {
+ kfree(netDevice->ChannelInitEvent);
- while (!IsListEmpty(&netDevice->ReceivePacketList))
- {
- entry = REMOVE_HEAD_LIST(&netDevice->ReceivePacketList);
- packet = CONTAINING_RECORD(entry, NETVSC_PACKET, ListEntry);
- MemFree(packet);
+ list_for_each_entry_safe(packet, pos,
+ &netDevice->ReceivePacketList,
+ ListEntry) {
+ list_del(&packet->ListEntry);
+ kfree(packet);
}
- SpinlockClose(netDevice->ReceivePacketListLock);
-
ReleaseOutboundNetDevice(Device);
ReleaseInboundNetDevice(Device);
return ret;
}
-
-/*++
-
-Name:
- NetVscOnDeviceRemove()
-
-Description:
- Callback when the root bus device is removed
-
---*/
-int
-NetVscOnDeviceRemove(
- DEVICE_OBJECT *Device
- )
+/**
+ * NetVscOnDeviceRemove - Callback when the root bus device is removed
+ */
+static int NetVscOnDeviceRemove(struct hv_device *Device)
{
- NETVSC_DEVICE *netDevice;
- NETVSC_PACKET *netvscPacket;
- int ret=0;
- LIST_ENTRY *entry;
+ struct netvsc_device *netDevice;
+ struct hv_netvsc_packet *netvscPacket, *pos;
DPRINT_ENTER(NETVSC);
- DPRINT_INFO(NETVSC, "Disabling outbound traffic on net device (%p)...", Device->Extension);
+ DPRINT_INFO(NETVSC, "Disabling outbound traffic on net device (%p)...",
+ Device->Extension);
- // Stop outbound traffic ie sends and receives completions
+ /* Stop outbound traffic ie sends and receives completions */
netDevice = ReleaseOutboundNetDevice(Device);
- if (!netDevice)
- {
+ if (!netDevice) {
DPRINT_ERR(NETVSC, "No net device present!!");
return -1;
}
- // Wait for all send completions
- while (netDevice->NumOutstandingSends)
- {
- DPRINT_INFO(NETVSC, "waiting for %d requests to complete...", netDevice->NumOutstandingSends);
-
- Sleep(100);
+ /* Wait for all send completions */
+ while (atomic_read(&netDevice->NumOutstandingSends)) {
+ DPRINT_INFO(NETVSC, "waiting for %d requests to complete...",
+ atomic_read(&netDevice->NumOutstandingSends));
+ udelay(100);
}
DPRINT_INFO(NETVSC, "Disconnecting from netvsp...");
NetVscDisconnectFromVsp(netDevice);
- DPRINT_INFO(NETVSC, "Disabling inbound traffic on net device (%p)...", Device->Extension);
+ DPRINT_INFO(NETVSC, "Disabling inbound traffic on net device (%p)...",
+ Device->Extension);
- // Stop inbound traffic ie receives and sends completions
+ /* Stop inbound traffic ie receives and sends completions */
netDevice = ReleaseInboundNetDevice(Device);
- // At this point, no one should be accessing netDevice except in here
+ /* At this point, no one should be accessing netDevice except in here */
DPRINT_INFO(NETVSC, "net device (%p) safe to remove", netDevice);
- // Now, we can close the channel safely
+ /* Now, we can close the channel safely */
Device->Driver->VmbusChannelInterface.Close(Device);
- // Release all resources
- while (!IsListEmpty(&netDevice->ReceivePacketList))
- {
- entry = REMOVE_HEAD_LIST(&netDevice->ReceivePacketList);
- netvscPacket = CONTAINING_RECORD(entry, NETVSC_PACKET, ListEntry);
-
- MemFree(netvscPacket);
+ /* Release all resources */
+ list_for_each_entry_safe(netvscPacket, pos,
+ &netDevice->ReceivePacketList, ListEntry) {
+ list_del(&netvscPacket->ListEntry);
+ kfree(netvscPacket);
}
- SpinlockClose(netDevice->ReceivePacketListLock);
- WaitEventClose(netDevice->ChannelInitEvent);
+ kfree(netDevice->ChannelInitEvent);
FreeNetDevice(netDevice);
DPRINT_EXIT(NETVSC);
- return ret;
+ return 0;
}
-
-
-/*++
-
-Name:
- NetVscOnCleanup()
-
-Description:
- Perform any cleanup when the driver is removed
-
---*/
-void
-NetVscOnCleanup(
- DRIVER_OBJECT *drv
- )
+/**
+ * NetVscOnCleanup - Perform any cleanup when the driver is removed
+ */
+static void NetVscOnCleanup(struct hv_driver *drv)
{
DPRINT_ENTER(NETVSC);
-
DPRINT_EXIT(NETVSC);
}
-static void
-NetVscOnSendCompletion(
- DEVICE_OBJECT *Device,
- VMPACKET_DESCRIPTOR *Packet
- )
+static void NetVscOnSendCompletion(struct hv_device *Device,
+ struct vmpacket_descriptor *Packet)
{
- NETVSC_DEVICE* netDevice;
- NVSP_MESSAGE *nvspPacket;
- NETVSC_PACKET *nvscPacket;
+ struct netvsc_device *netDevice;
+ struct nvsp_message *nvspPacket;
+ struct hv_netvsc_packet *nvscPacket;
DPRINT_ENTER(NETVSC);
netDevice = GetInboundNetDevice(Device);
- if (!netDevice)
- {
- DPRINT_ERR(NETVSC, "unable to get net device...device being destroyed?");
+ if (!netDevice) {
+ DPRINT_ERR(NETVSC, "unable to get net device..."
+ "device being destroyed?");
DPRINT_EXIT(NETVSC);
return;
}
- nvspPacket = (NVSP_MESSAGE*)((unsigned long)Packet + (Packet->DataOffset8 << 3));
-
- DPRINT_DBG(NETVSC, "send completion packet - type %d", nvspPacket->Header.MessageType);
-
- if (nvspPacket->Header.MessageType == NvspMessageTypeInitComplete ||
- nvspPacket->Header.MessageType == NvspMessage1TypeSendReceiveBufferComplete ||
- nvspPacket->Header.MessageType == NvspMessage1TypeSendSendBufferComplete)
- {
- // Copy the response back
- memcpy(&netDevice->ChannelInitPacket, nvspPacket, sizeof(NVSP_MESSAGE));
- WaitEventSet(netDevice->ChannelInitEvent);
- }
- else if (nvspPacket->Header.MessageType == NvspMessage1TypeSendRNDISPacketComplete)
- {
- // Get the send context
- nvscPacket = (NETVSC_PACKET *)(unsigned long)Packet->TransactionId;
+ nvspPacket = (struct nvsp_message *)((unsigned long)Packet + (Packet->DataOffset8 << 3));
+
+ DPRINT_DBG(NETVSC, "send completion packet - type %d",
+ nvspPacket->Header.MessageType);
+
+ if ((nvspPacket->Header.MessageType == NvspMessageTypeInitComplete) ||
+ (nvspPacket->Header.MessageType ==
+ NvspMessage1TypeSendReceiveBufferComplete) ||
+ (nvspPacket->Header.MessageType ==
+ NvspMessage1TypeSendSendBufferComplete)) {
+ /* Copy the response back */
+ memcpy(&netDevice->ChannelInitPacket, nvspPacket,
+ sizeof(struct nvsp_message));
+ osd_WaitEventSet(netDevice->ChannelInitEvent);
+ } else if (nvspPacket->Header.MessageType ==
+ NvspMessage1TypeSendRNDISPacketComplete) {
+ /* Get the send context */
+ nvscPacket = (struct hv_netvsc_packet *)(unsigned long)Packet->TransactionId;
ASSERT(nvscPacket);
- // Notify the layer above us
+ /* Notify the layer above us */
nvscPacket->Completion.Send.OnSendCompletion(nvscPacket->Completion.Send.SendCompletionContext);
- InterlockedDecrement(&netDevice->NumOutstandingSends);
- }
- else
- {
- DPRINT_ERR(NETVSC, "Unknown send completion packet type - %d received!!", nvspPacket->Header.MessageType);
+ atomic_dec(&netDevice->NumOutstandingSends);
+ } else {
+ DPRINT_ERR(NETVSC, "Unknown send completion packet type - "
+ "%d received!!", nvspPacket->Header.MessageType);
}
PutNetDevice(Device);
DPRINT_EXIT(NETVSC);
}
-
-
-static int
-NetVscOnSend(
- DEVICE_OBJECT *Device,
- NETVSC_PACKET *Packet
- )
+static int NetVscOnSend(struct hv_device *Device,
+ struct hv_netvsc_packet *Packet)
{
- NETVSC_DEVICE* netDevice;
- int ret=0;
+ struct netvsc_device *netDevice;
+ int ret = 0;
- NVSP_MESSAGE sendMessage;
+ struct nvsp_message sendMessage;
DPRINT_ENTER(NETVSC);
netDevice = GetOutboundNetDevice(Device);
- if (!netDevice)
- {
- DPRINT_ERR(NETVSC, "net device (%p) shutting down...ignoring outbound packets", netDevice);
+ if (!netDevice) {
+ DPRINT_ERR(NETVSC, "net device (%p) shutting down..."
+ "ignoring outbound packets", netDevice);
DPRINT_EXIT(NETVSC);
return -2;
}
sendMessage.Header.MessageType = NvspMessage1TypeSendRNDISPacket;
- if (Packet->IsDataPacket)
- sendMessage.Messages.Version1Messages.SendRNDISPacket.ChannelType = 0;// 0 is RMC_DATA;
- else
- sendMessage.Messages.Version1Messages.SendRNDISPacket.ChannelType = 1;// 1 is RMC_CONTROL;
-
- // Not using send buffer section
- sendMessage.Messages.Version1Messages.SendRNDISPacket.SendBufferSectionIndex = 0xFFFFFFFF;
- sendMessage.Messages.Version1Messages.SendRNDISPacket.SendBufferSectionSize = 0;
-
- if (Packet->PageBufferCount)
- {
- ret = Device->Driver->VmbusChannelInterface.SendPacketPageBuffer(Device,
- Packet->PageBuffers,
- Packet->PageBufferCount,
- &sendMessage,
- sizeof(NVSP_MESSAGE),
- (unsigned long)Packet);
+ if (Packet->IsDataPacket) {
+ /* 0 is RMC_DATA; */
+ sendMessage.Messages.Version1Messages.SendRNDISPacket.ChannelType = 0;
+ } else {
+ /* 1 is RMC_CONTROL; */
+ sendMessage.Messages.Version1Messages.SendRNDISPacket.ChannelType = 1;
}
- else
- {
+
+ /* Not using send buffer section */
+ sendMessage.Messages.Version1Messages.SendRNDISPacket.SendBufferSectionIndex = 0xFFFFFFFF;
+ sendMessage.Messages.Version1Messages.SendRNDISPacket.SendBufferSectionSize = 0;
+
+ if (Packet->PageBufferCount) {
+ ret = Device->Driver->VmbusChannelInterface.SendPacketPageBuffer(
+ Device, Packet->PageBuffers,
+ Packet->PageBufferCount,
+ &sendMessage,
+ sizeof(struct nvsp_message),
+ (unsigned long)Packet);
+ } else {
ret = Device->Driver->VmbusChannelInterface.SendPacket(Device,
- &sendMessage,
- sizeof(NVSP_MESSAGE),
- (unsigned long)Packet,
- VmbusPacketTypeDataInBand,
- VMBUS_DATA_PACKET_FLAG_COMPLETION_REQUESTED);
+ &sendMessage,
+ sizeof(struct nvsp_message),
+ (unsigned long)Packet,
+ VmbusPacketTypeDataInBand,
+ VMBUS_DATA_PACKET_FLAG_COMPLETION_REQUESTED);
}
if (ret != 0)
- {
- DPRINT_ERR(NETVSC, "Unable to send packet %p ret %d", Packet, ret);
- }
+ DPRINT_ERR(NETVSC, "Unable to send packet %p ret %d",
+ Packet, ret);
- InterlockedIncrement(&netDevice->NumOutstandingSends);
+ atomic_inc(&netDevice->NumOutstandingSends);
PutNetDevice(Device);
DPRINT_EXIT(NETVSC);
return ret;
}
-
-static void
-NetVscOnReceive(
- DEVICE_OBJECT *Device,
- VMPACKET_DESCRIPTOR *Packet
- )
+static void NetVscOnReceive(struct hv_device *Device,
+ struct vmpacket_descriptor *Packet)
{
- NETVSC_DEVICE* netDevice;
- VMTRANSFER_PAGE_PACKET_HEADER *vmxferpagePacket;
- NVSP_MESSAGE *nvspPacket;
- NETVSC_PACKET *netvscPacket=NULL;
- LIST_ENTRY* entry;
+ struct netvsc_device *netDevice;
+ struct vmtransfer_page_packet_header *vmxferpagePacket;
+ struct nvsp_message *nvspPacket;
+ struct hv_netvsc_packet *netvscPacket = NULL;
unsigned long start;
unsigned long end, endVirtual;
- //NETVSC_DRIVER_OBJECT *netvscDriver;
- XFERPAGE_PACKET *xferpagePacket=NULL;
- LIST_ENTRY listHead;
-
- int i=0, j=0;
- int count=0, bytesRemain=0;
+ /* struct netvsc_driver *netvscDriver; */
+ struct xferpage_packet *xferpagePacket = NULL;
+ int i, j;
+ int count = 0, bytesRemain = 0;
+ unsigned long flags;
+ LIST_HEAD(listHead);
DPRINT_ENTER(NETVSC);
netDevice = GetInboundNetDevice(Device);
- if (!netDevice)
- {
- DPRINT_ERR(NETVSC, "unable to get net device...device being destroyed?");
+ if (!netDevice) {
+ DPRINT_ERR(NETVSC, "unable to get net device..."
+ "device being destroyed?");
DPRINT_EXIT(NETVSC);
return;
}
- // All inbound packets other than send completion should be xfer page packet
- if (Packet->Type != VmbusPacketTypeDataUsingTransferPages)
- {
- DPRINT_ERR(NETVSC, "Unknown packet type received - %d", Packet->Type);
+ /*
+ * All inbound packets other than send completion should be xfer page
+ * packet
+ */
+ if (Packet->Type != VmbusPacketTypeDataUsingTransferPages) {
+ DPRINT_ERR(NETVSC, "Unknown packet type received - %d",
+ Packet->Type);
PutNetDevice(Device);
return;
}
- nvspPacket = (NVSP_MESSAGE*)((unsigned long)Packet + (Packet->DataOffset8 << 3));
+ nvspPacket = (struct nvsp_message *)((unsigned long)Packet +
+ (Packet->DataOffset8 << 3));
- // Make sure this is a valid nvsp packet
- if (nvspPacket->Header.MessageType != NvspMessage1TypeSendRNDISPacket )
- {
- DPRINT_ERR(NETVSC, "Unknown nvsp packet type received - %d", nvspPacket->Header.MessageType);
+ /* Make sure this is a valid nvsp packet */
+ if (nvspPacket->Header.MessageType != NvspMessage1TypeSendRNDISPacket) {
+ DPRINT_ERR(NETVSC, "Unknown nvsp packet type received - %d",
+ nvspPacket->Header.MessageType);
PutNetDevice(Device);
return;
}
- DPRINT_DBG(NETVSC, "NVSP packet received - type %d", nvspPacket->Header.MessageType);
+ DPRINT_DBG(NETVSC, "NVSP packet received - type %d",
+ nvspPacket->Header.MessageType);
- vmxferpagePacket = (VMTRANSFER_PAGE_PACKET_HEADER*)Packet;
+ vmxferpagePacket = (struct vmtransfer_page_packet_header *)Packet;
- if (vmxferpagePacket->TransferPageSetId != NETVSC_RECEIVE_BUFFER_ID)
- {
- DPRINT_ERR(NETVSC, "Invalid xfer page set id - expecting %x got %x", NETVSC_RECEIVE_BUFFER_ID, vmxferpagePacket->TransferPageSetId);
+ if (vmxferpagePacket->TransferPageSetId != NETVSC_RECEIVE_BUFFER_ID) {
+ DPRINT_ERR(NETVSC, "Invalid xfer page set id - "
+ "expecting %x got %x", NETVSC_RECEIVE_BUFFER_ID,
+ vmxferpagePacket->TransferPageSetId);
PutNetDevice(Device);
return;
}
- DPRINT_DBG(NETVSC, "xfer page - range count %d", vmxferpagePacket->RangeCount);
-
- INITIALIZE_LIST_HEAD(&listHead);
-
- // Grab free packets (range count + 1) to represent this xfer page packet. +1 to represent
- // the xfer page packet itself. We grab it here so that we know exactly how many we can fulfil
- SpinlockAcquire(netDevice->ReceivePacketListLock);
- while (!IsListEmpty(&netDevice->ReceivePacketList))
- {
- entry = REMOVE_HEAD_LIST(&netDevice->ReceivePacketList);
- netvscPacket = CONTAINING_RECORD(entry, NETVSC_PACKET, ListEntry);
-
- INSERT_TAIL_LIST(&listHead, &netvscPacket->ListEntry);
-
+ DPRINT_DBG(NETVSC, "xfer page - range count %d",
+ vmxferpagePacket->RangeCount);
+
+ /*
+ * Grab free packets (range count + 1) to represent this xfer
+ * page packet. +1 to represent the xfer page packet itself.
+ * We grab it here so that we know exactly how many we can
+ * fulfil
+ */
+ spin_lock_irqsave(&netDevice->receive_packet_list_lock, flags);
+ while (!list_empty(&netDevice->ReceivePacketList)) {
+ list_move_tail(netDevice->ReceivePacketList.next, &listHead);
if (++count == vmxferpagePacket->RangeCount + 1)
break;
}
- SpinlockRelease(netDevice->ReceivePacketListLock);
-
- // We need at least 2 netvsc pkts (1 to represent the xfer page and at least 1 for the range)
- // i.e. we can handled some of the xfer page packet ranges...
- if (count < 2)
- {
- DPRINT_ERR(NETVSC, "Got only %d netvsc pkt...needed %d pkts. Dropping this xfer page packet completely!", count, vmxferpagePacket->RangeCount+1);
-
- // Return it to the freelist
- SpinlockAcquire(netDevice->ReceivePacketListLock);
- for (i=count; i != 0; i--)
- {
- entry = REMOVE_HEAD_LIST(&listHead);
- netvscPacket = CONTAINING_RECORD(entry, NETVSC_PACKET, ListEntry);
-
- INSERT_TAIL_LIST(&netDevice->ReceivePacketList, &netvscPacket->ListEntry);
+ spin_unlock_irqrestore(&netDevice->receive_packet_list_lock, flags);
+
+ /*
+ * We need at least 2 netvsc pkts (1 to represent the xfer
+ * page and at least 1 for the range) i.e. we can handled
+ * some of the xfer page packet ranges...
+ */
+ if (count < 2) {
+ DPRINT_ERR(NETVSC, "Got only %d netvsc pkt...needed %d pkts. "
+ "Dropping this xfer page packet completely!",
+ count, vmxferpagePacket->RangeCount + 1);
+
+ /* Return it to the freelist */
+ spin_lock_irqsave(&netDevice->receive_packet_list_lock, flags);
+ for (i = count; i != 0; i--) {
+ list_move_tail(listHead.next,
+ &netDevice->ReceivePacketList);
}
- SpinlockRelease(netDevice->ReceivePacketListLock);
+ spin_unlock_irqrestore(&netDevice->receive_packet_list_lock,
+ flags);
- NetVscSendReceiveCompletion(Device, vmxferpagePacket->d.TransactionId);
+ NetVscSendReceiveCompletion(Device,
+ vmxferpagePacket->d.TransactionId);
PutNetDevice(Device);
return;
}
- // Remove the 1st packet to represent the xfer page packet itself
- entry = REMOVE_HEAD_LIST(&listHead);
- xferpagePacket = CONTAINING_RECORD(entry, XFERPAGE_PACKET, ListEntry);
- xferpagePacket->Count = count - 1; // This is how much we can satisfy
- ASSERT(xferpagePacket->Count > 0 && xferpagePacket->Count <= vmxferpagePacket->RangeCount);
+ /* Remove the 1st packet to represent the xfer page packet itself */
+ xferpagePacket = (struct xferpage_packet*)listHead.next;
+ list_del(&xferpagePacket->ListEntry);
- if (xferpagePacket->Count != vmxferpagePacket->RangeCount)
- {
- DPRINT_INFO(NETVSC, "Needed %d netvsc pkts to satisy this xfer page...got %d", vmxferpagePacket->RangeCount, xferpagePacket->Count);
+ /* This is how much we can satisfy */
+ xferpagePacket->Count = count - 1;
+ ASSERT(xferpagePacket->Count > 0 && xferpagePacket->Count <=
+ vmxferpagePacket->RangeCount);
+
+ if (xferpagePacket->Count != vmxferpagePacket->RangeCount) {
+ DPRINT_INFO(NETVSC, "Needed %d netvsc pkts to satisy this xfer "
+ "page...got %d", vmxferpagePacket->RangeCount,
+ xferpagePacket->Count);
}
- // Each range represents 1 RNDIS pkt that contains 1 ethernet frame
- for (i=0; i < (count - 1); i++)
- {
- entry = REMOVE_HEAD_LIST(&listHead);
- netvscPacket = CONTAINING_RECORD(entry, NETVSC_PACKET, ListEntry);
+ /* Each range represents 1 RNDIS pkt that contains 1 ethernet frame */
+ for (i = 0; i < (count - 1); i++) {
+ netvscPacket = (struct hv_netvsc_packet*)listHead.next;
+ list_del(&netvscPacket->ListEntry);
- // Initialize the netvsc packet
+ /* Initialize the netvsc packet */
netvscPacket->XferPagePacket = xferpagePacket;
- netvscPacket->Completion.Recv.OnReceiveCompletion = NetVscOnReceiveCompletion;
- netvscPacket->Completion.Recv.ReceiveCompletionContext = netvscPacket;
+ netvscPacket->Completion.Recv.OnReceiveCompletion =
+ NetVscOnReceiveCompletion;
+ netvscPacket->Completion.Recv.ReceiveCompletionContext =
+ netvscPacket;
netvscPacket->Device = Device;
- netvscPacket->Completion.Recv.ReceiveCompletionTid = vmxferpagePacket->d.TransactionId; // Save this so that we can send it back
+ /* Save this so that we can send it back */
+ netvscPacket->Completion.Recv.ReceiveCompletionTid =
+ vmxferpagePacket->d.TransactionId;
- netvscPacket->TotalDataBufferLength = vmxferpagePacket->Ranges[i].ByteCount;
+ netvscPacket->TotalDataBufferLength =
+ vmxferpagePacket->Ranges[i].ByteCount;
netvscPacket->PageBufferCount = 1;
- ASSERT(vmxferpagePacket->Ranges[i].ByteOffset + vmxferpagePacket->Ranges[i].ByteCount < netDevice->ReceiveBufferSize);
+ ASSERT(vmxferpagePacket->Ranges[i].ByteOffset +
+ vmxferpagePacket->Ranges[i].ByteCount <
+ netDevice->ReceiveBufferSize);
- netvscPacket->PageBuffers[0].Length = vmxferpagePacket->Ranges[i].ByteCount;
+ netvscPacket->PageBuffers[0].Length =
+ vmxferpagePacket->Ranges[i].ByteCount;
- start = GetPhysicalAddress((void*)((unsigned long)netDevice->ReceiveBuffer + vmxferpagePacket->Ranges[i].ByteOffset));
+ start = virt_to_phys((void *)((unsigned long)netDevice->ReceiveBuffer + vmxferpagePacket->Ranges[i].ByteOffset));
netvscPacket->PageBuffers[0].Pfn = start >> PAGE_SHIFT;
endVirtual = (unsigned long)netDevice->ReceiveBuffer
+ vmxferpagePacket->Ranges[i].ByteOffset
- + vmxferpagePacket->Ranges[i].ByteCount -1;
- end = GetPhysicalAddress((void*)endVirtual);
-
- // Calculate the page relative offset
- netvscPacket->PageBuffers[0].Offset = vmxferpagePacket->Ranges[i].ByteOffset & (PAGE_SIZE -1);
- if ((end >> PAGE_SHIFT) != (start>>PAGE_SHIFT)) {
- //Handle frame across multiple pages:
- netvscPacket->PageBuffers[0].Length =
- (netvscPacket->PageBuffers[0].Pfn <<PAGE_SHIFT) + PAGE_SIZE - start;
- bytesRemain = netvscPacket->TotalDataBufferLength - netvscPacket->PageBuffers[0].Length;
- for (j=1; j<NETVSC_PACKET_MAXPAGE; j++) {
- netvscPacket->PageBuffers[j].Offset = 0;
- if (bytesRemain <= PAGE_SIZE) {
- netvscPacket->PageBuffers[j].Length = bytesRemain;
- bytesRemain = 0;
- } else {
- netvscPacket->PageBuffers[j].Length = PAGE_SIZE;
- bytesRemain -= PAGE_SIZE;
+ + vmxferpagePacket->Ranges[i].ByteCount - 1;
+ end = virt_to_phys((void *)endVirtual);
+
+ /* Calculate the page relative offset */
+ netvscPacket->PageBuffers[0].Offset =
+ vmxferpagePacket->Ranges[i].ByteOffset & (PAGE_SIZE - 1);
+ if ((end >> PAGE_SHIFT) != (start >> PAGE_SHIFT)) {
+ /* Handle frame across multiple pages: */
+ netvscPacket->PageBuffers[0].Length =
+ (netvscPacket->PageBuffers[0].Pfn << PAGE_SHIFT)
+ + PAGE_SIZE - start;
+ bytesRemain = netvscPacket->TotalDataBufferLength -
+ netvscPacket->PageBuffers[0].Length;
+ for (j = 1; j < NETVSC_PACKET_MAXPAGE; j++) {
+ netvscPacket->PageBuffers[j].Offset = 0;
+ if (bytesRemain <= PAGE_SIZE) {
+ netvscPacket->PageBuffers[j].Length = bytesRemain;
+ bytesRemain = 0;
+ } else {
+ netvscPacket->PageBuffers[j].Length = PAGE_SIZE;
+ bytesRemain -= PAGE_SIZE;
+ }
+ netvscPacket->PageBuffers[j].Pfn =
+ virt_to_phys((void *)(endVirtual - bytesRemain)) >> PAGE_SHIFT;
+ netvscPacket->PageBufferCount++;
+ if (bytesRemain == 0)
+ break;
}
- netvscPacket->PageBuffers[j].Pfn =
- GetPhysicalAddress((void*)(endVirtual - bytesRemain)) >> PAGE_SHIFT;
- netvscPacket->PageBufferCount++;
- if (bytesRemain == 0)
- break;
- }
- ASSERT(bytesRemain == 0);
+ ASSERT(bytesRemain == 0);
}
- DPRINT_DBG(NETVSC, "[%d] - (abs offset %u len %u) => (pfn %llx, offset %u, len %u)",
- i,
- vmxferpagePacket->Ranges[i].ByteOffset,
- vmxferpagePacket->Ranges[i].ByteCount,
- netvscPacket->PageBuffers[0].Pfn,
- netvscPacket->PageBuffers[0].Offset,
- netvscPacket->PageBuffers[0].Length);
+ DPRINT_DBG(NETVSC, "[%d] - (abs offset %u len %u) => "
+ "(pfn %llx, offset %u, len %u)", i,
+ vmxferpagePacket->Ranges[i].ByteOffset,
+ vmxferpagePacket->Ranges[i].ByteCount,
+ netvscPacket->PageBuffers[0].Pfn,
+ netvscPacket->PageBuffers[0].Offset,
+ netvscPacket->PageBuffers[0].Length);
- // Pass it to the upper layer
- ((NETVSC_DRIVER_OBJECT*)Device->Driver)->OnReceiveCallback(Device, netvscPacket);
+ /* Pass it to the upper layer */
+ ((struct netvsc_driver *)Device->Driver)->OnReceiveCallback(Device, netvscPacket);
NetVscOnReceiveCompletion(netvscPacket->Completion.Recv.ReceiveCompletionContext);
}
- ASSERT(IsListEmpty(&listHead));
+ ASSERT(list_empty(&listHead));
PutNetDevice(Device);
DPRINT_EXIT(NETVSC);
}
-
-static void
-NetVscSendReceiveCompletion(
- DEVICE_OBJECT *Device,
- u64 TransactionId
- )
+static void NetVscSendReceiveCompletion(struct hv_device *Device,
+ u64 TransactionId)
{
- NVSP_MESSAGE recvcompMessage;
- int retries=0;
- int ret=0;
+ struct nvsp_message recvcompMessage;
+ int retries = 0;
+ int ret;
- DPRINT_DBG(NETVSC, "Sending receive completion pkt - %llx", TransactionId);
+ DPRINT_DBG(NETVSC, "Sending receive completion pkt - %llx",
+ TransactionId);
- recvcompMessage.Header.MessageType = NvspMessage1TypeSendRNDISPacketComplete;
+ recvcompMessage.Header.MessageType =
+ NvspMessage1TypeSendRNDISPacketComplete;
- // FIXME: Pass in the status
+ /* FIXME: Pass in the status */
recvcompMessage.Messages.Version1Messages.SendRNDISPacketComplete.Status = NvspStatusSuccess;
retry_send_cmplt:
- // Send the completion
+ /* Send the completion */
ret = Device->Driver->VmbusChannelInterface.SendPacket(Device,
- &recvcompMessage,
- sizeof(NVSP_MESSAGE),
- TransactionId,
- VmbusPacketTypeCompletion,
- 0);
- if (ret == 0) // success
- {
- // no-op
- }
- else if (ret == -1) // no more room...wait a bit and attempt to retry 3 times
- {
+ &recvcompMessage,
+ sizeof(struct nvsp_message),
+ TransactionId,
+ VmbusPacketTypeCompletion, 0);
+ if (ret == 0) {
+ /* success */
+ /* no-op */
+ } else if (ret == -1) {
+ /* no more room...wait a bit and attempt to retry 3 times */
retries++;
- DPRINT_ERR(NETVSC, "unable to send receive completion pkt (tid %llx)...retrying %d", TransactionId, retries);
+ DPRINT_ERR(NETVSC, "unable to send receive completion pkt "
+ "(tid %llx)...retrying %d", TransactionId, retries);
- if (retries < 4)
- {
- Sleep(100);
+ if (retries < 4) {
+ udelay(100);
goto retry_send_cmplt;
+ } else {
+ DPRINT_ERR(NETVSC, "unable to send receive completion "
+ "pkt (tid %llx)...give up retrying",
+ TransactionId);
}
- else
- {
- DPRINT_ERR(NETVSC, "unable to send receive completion pkt (tid %llx)...give up retrying", TransactionId);
- }
- }
- else
- {
- DPRINT_ERR(NETVSC, "unable to send receive completion pkt - %llx", TransactionId);
+ } else {
+ DPRINT_ERR(NETVSC, "unable to send receive completion pkt - "
+ "%llx", TransactionId);
}
}
-//
-// Send a receive completion packet to RNDIS device (ie NetVsp)
-//
-static void
-NetVscOnReceiveCompletion(
- void * Context)
+/* Send a receive completion packet to RNDIS device (ie NetVsp) */
+static void NetVscOnReceiveCompletion(void *Context)
{
- NETVSC_PACKET *packet = (NETVSC_PACKET*)Context;
- DEVICE_OBJECT *device = (DEVICE_OBJECT*)packet->Device;
- NETVSC_DEVICE* netDevice;
- u64 transactionId=0;
+ struct hv_netvsc_packet *packet = Context;
+ struct hv_device *device = (struct hv_device *)packet->Device;
+ struct netvsc_device *netDevice;
+ u64 transactionId = 0;
bool fSendReceiveComp = false;
+ unsigned long flags;
DPRINT_ENTER(NETVSC);
ASSERT(packet->XferPagePacket);
- // Even though it seems logical to do a GetOutboundNetDevice() here to send out receive completion,
- // we are using GetInboundNetDevice() since we may have disable outbound traffic already.
+ /*
+ * Even though it seems logical to do a GetOutboundNetDevice() here to
+ * send out receive completion, we are using GetInboundNetDevice()
+ * since we may have disable outbound traffic already.
+ */
netDevice = GetInboundNetDevice(device);
- if (!netDevice)
- {
- DPRINT_ERR(NETVSC, "unable to get net device...device being destroyed?");
+ if (!netDevice) {
+ DPRINT_ERR(NETVSC, "unable to get net device..."
+ "device being destroyed?");
DPRINT_EXIT(NETVSC);
return;
}
- // Overloading use of the lock.
- SpinlockAcquire(netDevice->ReceivePacketListLock);
+ /* Overloading use of the lock. */
+ spin_lock_irqsave(&netDevice->receive_packet_list_lock, flags);
ASSERT(packet->XferPagePacket->Count > 0);
packet->XferPagePacket->Count--;
- // Last one in the line that represent 1 xfer page packet.
- // Return the xfer page packet itself to the freelist
- if (packet->XferPagePacket->Count == 0)
- {
+ /*
+ * Last one in the line that represent 1 xfer page packet.
+ * Return the xfer page packet itself to the freelist
+ */
+ if (packet->XferPagePacket->Count == 0) {
fSendReceiveComp = true;
transactionId = packet->Completion.Recv.ReceiveCompletionTid;
+ list_add_tail(&packet->XferPagePacket->ListEntry,
+ &netDevice->ReceivePacketList);
- INSERT_TAIL_LIST(&netDevice->ReceivePacketList, &packet->XferPagePacket->ListEntry);
}
- // Put the packet back
- INSERT_TAIL_LIST(&netDevice->ReceivePacketList, &packet->ListEntry);
- SpinlockRelease(netDevice->ReceivePacketListLock);
+ /* Put the packet back */
+ list_add_tail(&packet->ListEntry, &netDevice->ReceivePacketList);
+ spin_unlock_irqrestore(&netDevice->receive_packet_list_lock, flags);
- // Send a receive completion for the xfer page packet
+ /* Send a receive completion for the xfer page packet */
if (fSendReceiveComp)
- {
NetVscSendReceiveCompletion(device, transactionId);
- }
PutNetDevice(device);
DPRINT_EXIT(NETVSC);
}
-
-
-void
-NetVscOnChannelCallback(
- void * Context
- )
+void NetVscOnChannelCallback(void *Context)
{
- const int netPacketSize=2048;
- int ret=0;
- DEVICE_OBJECT *device=(DEVICE_OBJECT*)Context;
- NETVSC_DEVICE *netDevice;
-
+ const int netPacketSize = 2048;
+ int ret;
+ struct hv_device *device = Context;
+ struct netvsc_device *netDevice;
u32 bytesRecvd;
u64 requestId;
unsigned char packet[netPacketSize];
- VMPACKET_DESCRIPTOR *desc;
- unsigned char *buffer=packet;
- int bufferlen=netPacketSize;
+ struct vmpacket_descriptor *desc;
+ unsigned char *buffer = packet;
+ int bufferlen = netPacketSize;
DPRINT_ENTER(NETVSC);
ASSERT(device);
netDevice = GetInboundNetDevice(device);
- if (!netDevice)
- {
- DPRINT_ERR(NETVSC, "net device (%p) shutting down...ignoring inbound packets", netDevice);
+ if (!netDevice) {
+ DPRINT_ERR(NETVSC, "net device (%p) shutting down..."
+ "ignoring inbound packets", netDevice);
DPRINT_EXIT(NETVSC);
return;
}
- do
- {
- ret = device->Driver->VmbusChannelInterface.RecvPacketRaw(device,
- buffer,
- bufferlen,
- &bytesRecvd,
- &requestId);
-
- if (ret == 0)
- {
- if (bytesRecvd > 0)
- {
- DPRINT_DBG(NETVSC, "receive %d bytes, tid %llx", bytesRecvd, requestId);
-
- desc = (VMPACKET_DESCRIPTOR*)buffer;
- switch (desc->Type)
- {
- case VmbusPacketTypeCompletion:
- NetVscOnSendCompletion(device, desc);
- break;
-
- case VmbusPacketTypeDataUsingTransferPages:
- NetVscOnReceive(device, desc);
- break;
-
- default:
- DPRINT_ERR(NETVSC, "unhandled packet type %d, tid %llx len %d\n", desc->Type, requestId, bytesRecvd);
- break;
+ do {
+ ret = device->Driver->VmbusChannelInterface.RecvPacketRaw(
+ device, buffer, bufferlen,
+ &bytesRecvd, &requestId);
+ if (ret == 0) {
+ if (bytesRecvd > 0) {
+ DPRINT_DBG(NETVSC, "receive %d bytes, tid %llx",
+ bytesRecvd, requestId);
+
+ desc = (struct vmpacket_descriptor *)buffer;
+ switch (desc->Type) {
+ case VmbusPacketTypeCompletion:
+ NetVscOnSendCompletion(device, desc);
+ break;
+
+ case VmbusPacketTypeDataUsingTransferPages:
+ NetVscOnReceive(device, desc);
+ break;
+
+ default:
+ DPRINT_ERR(NETVSC,
+ "unhandled packet type %d, "
+ "tid %llx len %d\n",
+ desc->Type, requestId,
+ bytesRecvd);
+ break;
}
- // reset
- if (bufferlen > netPacketSize)
- {
- MemFree(buffer);
-
+ /* reset */
+ if (bufferlen > netPacketSize) {
+ kfree(buffer);
buffer = packet;
bufferlen = netPacketSize;
}
- }
- else
- {
- //DPRINT_DBG(NETVSC, "nothing else to read...");
-
- // reset
- if (bufferlen > netPacketSize)
- {
- MemFree(buffer);
-
+ } else {
+ /* reset */
+ if (bufferlen > netPacketSize) {
+ kfree(buffer);
buffer = packet;
bufferlen = netPacketSize;
}
break;
}
- }
- else if (ret == -2) // Handle large packet
- {
- buffer = MemAllocAtomic(bytesRecvd);
- if (buffer == NULL)
- {
- // Try again next time around
- DPRINT_ERR(NETVSC, "unable to allocate buffer of size (%d)!!", bytesRecvd);
+ } else if (ret == -2) {
+ /* Handle large packet */
+ buffer = kmalloc(bytesRecvd, GFP_ATOMIC);
+ if (buffer == NULL) {
+ /* Try again next time around */
+ DPRINT_ERR(NETVSC,
+ "unable to allocate buffer of size "
+ "(%d)!!", bytesRecvd);
break;
}
bufferlen = bytesRecvd;
- }
- else
- {
+ } else {
ASSERT(0);
}
} while (1);
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff