#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/delay.h>
-#include "include/logging.h"
+#include <asm/io.h>
+#include "osd.h"
+#include "logging.h"
#include "NetVsc.h"
#include "RndisFilter.h"
-//
-// Globals
-//
+/* 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
+ }
};
-//
-// Internal routines
-//
+/* Internal routines */
static int
NetVscOnDeviceAdd(
- DEVICE_OBJECT *Device,
+ struct hv_device *Device,
void *AdditionalInfo
);
static int
NetVscOnDeviceRemove(
- DEVICE_OBJECT *Device
+ struct hv_device *Device
);
static void
NetVscOnCleanup(
- DRIVER_OBJECT *Driver
+ struct hv_driver *Driver
);
static void
static int
NetVscInitializeSendBufferWithNetVsp(
- DEVICE_OBJECT *Device
+ struct hv_device *Device
);
static int
NetVscInitializeReceiveBufferWithNetVsp(
- DEVICE_OBJECT *Device
+ struct hv_device *Device
);
static int
NetVscDestroySendBuffer(
- NETVSC_DEVICE *NetDevice
+ struct NETVSC_DEVICE *NetDevice
);
static int
NetVscDestroyReceiveBuffer(
- NETVSC_DEVICE *NetDevice
+ struct NETVSC_DEVICE *NetDevice
);
static int
NetVscConnectToVsp(
- DEVICE_OBJECT *Device
+ struct hv_device *Device
);
static void
NetVscOnSendCompletion(
- DEVICE_OBJECT *Device,
- VMPACKET_DESCRIPTOR *Packet
+ struct hv_device *Device,
+ struct vmpacket_descriptor *Packet
);
static int
NetVscOnSend(
- DEVICE_OBJECT *Device,
- NETVSC_PACKET *Packet
+ struct hv_device *Device,
+ struct hv_netvsc_packet *Packet
);
static void
NetVscOnReceive(
- DEVICE_OBJECT *Device,
- VMPACKET_DESCRIPTOR *Packet
+ struct hv_device *Device,
+ struct vmpacket_descriptor *Packet
);
static void
static void
NetVscSendReceiveCompletion(
- DEVICE_OBJECT *Device,
+ struct hv_device *Device,
u64 TransactionId
);
-static inline NETVSC_DEVICE* AllocNetDevice(DEVICE_OBJECT *Device)
+static inline 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 inline void FreeNetDevice(struct NETVSC_DEVICE *Device)
{
- ASSERT(Device->RefCount == 0);
+ ASSERT(atomic_read(&Device->RefCount) == 0);
Device->Device->Extension = NULL;
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 inline 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 = (struct NETVSC_DEVICE*)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 inline 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 = (struct NETVSC_DEVICE*)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 inline void PutNetDevice(struct hv_device *Device)
{
- NETVSC_DEVICE *netDevice;
+ struct NETVSC_DEVICE *netDevice;
- netDevice = (NETVSC_DEVICE*)Device->Extension;
+ netDevice = (struct NETVSC_DEVICE*)Device->Extension;
ASSERT(netDevice);
- InterlockedDecrement(&netDevice->RefCount);
+ atomic_dec(&netDevice->RefCount);
}
-static inline NETVSC_DEVICE* ReleaseOutboundNetDevice(DEVICE_OBJECT *Device)
+static inline struct NETVSC_DEVICE *ReleaseOutboundNetDevice(struct hv_device *Device)
{
- NETVSC_DEVICE *netDevice;
+ struct NETVSC_DEVICE *netDevice;
- netDevice = (NETVSC_DEVICE*)Device->Extension;
+ netDevice = (struct NETVSC_DEVICE*)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)
+ /* 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 inline struct NETVSC_DEVICE *ReleaseInboundNetDevice(struct hv_device *Device)
{
- NETVSC_DEVICE *netDevice;
+ struct NETVSC_DEVICE *netDevice;
- netDevice = (NETVSC_DEVICE*)Device->Extension;
+ netDevice = (struct NETVSC_DEVICE*)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)
+ /* Busy wait until the ref drop to 1, then set it to 0 */
+ while (atomic_cmpxchg(&netDevice->RefCount, 1, 0) != 1)
{
udelay(100);
}
--*/
int
NetVscInitialize(
- DRIVER_OBJECT *drv
+ struct hv_driver *drv
)
{
- NETVSC_DRIVER_OBJECT* driver = (NETVSC_DRIVER_OBJECT*)drv;
+ struct netvsc_driver *driver = (struct netvsc_driver *)drv;
int ret=0;
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
+ /* Setup the dispatch table */
driver->Base.OnDeviceAdd = NetVscOnDeviceAdd;
driver->Base.OnDeviceRemove = NetVscOnDeviceRemove;
driver->Base.OnCleanup = NetVscOnCleanup;
static int
NetVscInitializeReceiveBufferWithNetVsp(
- DEVICE_OBJECT *Device
+ struct hv_device *Device
)
{
int ret=0;
- NETVSC_DEVICE *netDevice;
- NVSP_MESSAGE *initPacket;
+ struct NETVSC_DEVICE *netDevice;
+ struct nvsp_message *initPacket;
DPRINT_ENTER(NETVSC);
return -1;
}
ASSERT(netDevice->ReceiveBufferSize > 0);
- ASSERT((netDevice->ReceiveBufferSize & (PAGE_SIZE-1)) == 0); // page-size grandularity
+ ASSERT((netDevice->ReceiveBufferSize & (PAGE_SIZE-1)) == 0); /* page-size grandularity */
- netDevice->ReceiveBuffer = PageAlloc(netDevice->ReceiveBufferSize >> PAGE_SHIFT);
+ 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
+ ASSERT(((unsigned long)netDevice->ReceiveBuffer & (PAGE_SIZE-1)) == 0); /* page-aligned buffer */
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,
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;
- // Send the gpadl notification request
+ /* Send the gpadl notification request */
ret = Device->Driver->VmbusChannelInterface.SendPacket(Device,
initPacket,
- sizeof(NVSP_MESSAGE),
+ sizeof(struct nvsp_message),
(unsigned long)initPacket,
VmbusPacketTypeDataInBand,
VMBUS_DATA_PACKET_FLAG_COMPLETION_REQUESTED);
goto Cleanup;
}
- WaitEventWait(netDevice->ChannelInitEvent);
+ osd_WaitEventWait(netDevice->ChannelInitEvent);
- // Check the response
+ /* Check the response */
if (initPacket->Messages.Version1Messages.SendReceiveBufferComplete.Status != NvspStatusSuccess)
{
DPRINT_ERR(NETVSC,
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);
+ netDevice->ReceiveSections = kmalloc(netDevice->ReceiveSectionCount * sizeof(struct nvsp_1_receive_buffer_section), GFP_KERNEL);
if (netDevice->ReceiveSections == NULL)
{
ret = -1;
memcpy(netDevice->ReceiveSections,
initPacket->Messages.Version1Messages.SendReceiveBufferComplete.Sections,
- netDevice->ReceiveSectionCount * sizeof(NVSP_1_RECEIVE_BUFFER_SECTION));
+ 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->ReceiveSections[0].SubAllocationSize, netDevice->ReceiveSections[0].NumSubAllocations);
- //For 1st release, there should only be 1 section that represents the entire receive buffer
+ /* For 1st release, there should only be 1 section that represents the entire receive buffer */
if (netDevice->ReceiveSectionCount != 1 ||
netDevice->ReceiveSections->Offset != 0 )
{
static int
NetVscInitializeSendBufferWithNetVsp(
- DEVICE_OBJECT *Device
+ struct hv_device *Device
)
{
int ret=0;
- NETVSC_DEVICE *netDevice;
- NVSP_MESSAGE *initPacket;
+ struct NETVSC_DEVICE *netDevice;
+ struct nvsp_message *initPacket;
DPRINT_ENTER(NETVSC);
return -1;
}
ASSERT(netDevice->SendBufferSize > 0);
- ASSERT((netDevice->SendBufferSize & (PAGE_SIZE-1)) == 0); // page-size grandularity
+ ASSERT((netDevice->SendBufferSize & (PAGE_SIZE-1)) == 0); /* page-size grandularity */
- netDevice->SendBuffer = PageAlloc(netDevice->SendBufferSize >> PAGE_SHIFT);
+ 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
+ ASSERT(((unsigned long)netDevice->SendBuffer & (PAGE_SIZE-1)) == 0); /* page-aligned buffer */
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);
+ netDevice->SendBuffer,
+ netDevice->SendBufferSize,
+ &netDevice->SendBufferGpadlHandle);
if (ret != 0)
{
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;
- // Send the gpadl notification request
+ /* Send the gpadl notification request */
ret = Device->Driver->VmbusChannelInterface.SendPacket(Device,
initPacket,
- sizeof(NVSP_MESSAGE),
+ sizeof(struct nvsp_message),
(unsigned long)initPacket,
VmbusPacketTypeDataInBand,
VMBUS_DATA_PACKET_FLAG_COMPLETION_REQUESTED);
goto Cleanup;
}
- WaitEventWait(netDevice->ChannelInitEvent);
+ osd_WaitEventWait(netDevice->ChannelInitEvent);
- // Check the response
+ /* Check the response */
if (initPacket->Messages.Version1Messages.SendSendBufferComplete.Status != NvspStatusSuccess)
{
DPRINT_ERR(NETVSC,
static int
NetVscDestroyReceiveBuffer(
- NETVSC_DEVICE *NetDevice
+ struct NETVSC_DEVICE *NetDevice
)
{
- NVSP_MESSAGE *revokePacket;
+ 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 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
+ /* 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),
+ 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 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");
}
}
- // Teardown the gpadl on the vsp end
+ /* 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);
- // If we failed here, we might as well return and have a leak rather than continue and a bugchk
+ /* 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_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;
}
static int
NetVscDestroySendBuffer(
- NETVSC_DEVICE *NetDevice
+ struct NETVSC_DEVICE *NetDevice
)
{
- NVSP_MESSAGE *revokePacket;
+ 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 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
+ /* 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),
+ 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 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");
}
}
- // Teardown the gpadl on the vsp end
+ /* 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);
- // If we failed here, we might as well return and have a leak rather than continue and a bugchk
+ /* 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_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
+ struct hv_device *Device
)
{
int ret=0;
- NETVSC_DEVICE *netDevice;
- NVSP_MESSAGE *initPacket;
+ struct NETVSC_DEVICE *netDevice;
+ struct nvsp_message *initPacket;
int ndisVersion;
DPRINT_ENTER(NETVSC);
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;
DPRINT_INFO(NETVSC, "Sending NvspMessageTypeInit...");
- // Send the init request
+ /* Send the init request */
ret = Device->Driver->VmbusChannelInterface.SendPacket(Device,
initPacket,
- sizeof(NVSP_MESSAGE),
+ sizeof(struct nvsp_message),
(unsigned long)initPacket,
VmbusPacketTypeDataInBand,
VMBUS_DATA_PACKET_FLAG_COMPLETION_REQUESTED);
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);
}
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;
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),
+ sizeof(struct nvsp_message),
(unsigned long)initPacket,
VmbusPacketTypeDataInBand,
0);
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)
{
static void
NetVscDisconnectFromVsp(
- NETVSC_DEVICE *NetDevice
+ struct NETVSC_DEVICE *NetDevice
)
{
DPRINT_ENTER(NETVSC);
Callback when the device belonging to this driver is added
--*/
-int
+static int
NetVscOnDeviceAdd(
- DEVICE_OBJECT *Device,
+ struct hv_device *Device,
void *AdditionalInfo
)
{
int ret=0;
int i;
- NETVSC_DEVICE* netDevice;
- NETVSC_PACKET* packet;
+ struct NETVSC_DEVICE *netDevice;
+ struct hv_netvsc_packet *packet;
LIST_ENTRY *entry;
- NETVSC_DRIVER_OBJECT *netDriver = (NETVSC_DRIVER_OBJECT*) Device->Driver;;
+ struct netvsc_driver *netDriver = (struct netvsc_driver *)Device->Driver;
DPRINT_ENTER(NETVSC);
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;
spin_lock_init(&netDevice->receive_packet_list_lock);
for (i=0; i < NETVSC_RECEIVE_PACKETLIST_COUNT; i++)
{
- packet = kzalloc(sizeof(NETVSC_PACKET) + (NETVSC_RECEIVE_SG_COUNT* sizeof(PAGE_BUFFER)), GFP_KERNEL);
+ 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);
INSERT_TAIL_LIST(&netDevice->ReceivePacketList, &packet->ListEntry);
}
- 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)
{
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)
{
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);
+ kfree(netDevice->ChannelInitEvent);
while (!IsListEmpty(&netDevice->ReceivePacketList))
{
entry = REMOVE_HEAD_LIST(&netDevice->ReceivePacketList);
- packet = CONTAINING_RECORD(entry, NETVSC_PACKET, ListEntry);
+ packet = CONTAINING_RECORD(entry, struct hv_netvsc_packet, ListEntry);
kfree(packet);
}
Callback when the root bus device is removed
--*/
-int
+static int
NetVscOnDeviceRemove(
- DEVICE_OBJECT *Device
+ struct hv_device *Device
)
{
- NETVSC_DEVICE *netDevice;
- NETVSC_PACKET *netvscPacket;
+ struct NETVSC_DEVICE *netDevice;
+ struct hv_netvsc_packet *netvscPacket;
int ret=0;
LIST_ENTRY *entry;
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)
{
return -1;
}
- // Wait for all send completions
- while (netDevice->NumOutstandingSends)
+ /* Wait for all send completions */
+ while (atomic_read(&netDevice->NumOutstandingSends))
{
- DPRINT_INFO(NETVSC, "waiting for %d requests to complete...", netDevice->NumOutstandingSends);
+ DPRINT_INFO(NETVSC, "waiting for %d requests to complete...", atomic_read(&netDevice->NumOutstandingSends));
udelay(100);
}
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
+ /* Release all resources */
while (!IsListEmpty(&netDevice->ReceivePacketList))
{
entry = REMOVE_HEAD_LIST(&netDevice->ReceivePacketList);
- netvscPacket = CONTAINING_RECORD(entry, NETVSC_PACKET, ListEntry);
+ netvscPacket = CONTAINING_RECORD(entry, struct hv_netvsc_packet, ListEntry);
kfree(netvscPacket);
}
- WaitEventClose(netDevice->ChannelInitEvent);
+ kfree(netDevice->ChannelInitEvent);
FreeNetDevice(netDevice);
DPRINT_EXIT(NETVSC);
Perform any cleanup when the driver is removed
--*/
-void
+static void
NetVscOnCleanup(
- DRIVER_OBJECT *drv
+ struct hv_driver *drv
)
{
DPRINT_ENTER(NETVSC);
static void
NetVscOnSendCompletion(
- DEVICE_OBJECT *Device,
- VMPACKET_DESCRIPTOR *Packet
+ 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);
return;
}
- nvspPacket = (NVSP_MESSAGE*)((unsigned long)Packet + (Packet->DataOffset8 << 3));
+ nvspPacket = (struct nvsp_message *)((unsigned long)Packet + (Packet->DataOffset8 << 3));
DPRINT_DBG(NETVSC, "send completion packet - type %d", nvspPacket->Header.MessageType);
nvspPacket->Header.MessageType == NvspMessage1TypeSendReceiveBufferComplete ||
nvspPacket->Header.MessageType == NvspMessage1TypeSendSendBufferComplete)
{
- // Copy the response back
- memcpy(&netDevice->ChannelInitPacket, nvspPacket, sizeof(NVSP_MESSAGE));
- WaitEventSet(netDevice->ChannelInitEvent);
+ /* 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 = (NETVSC_PACKET *)(unsigned long)Packet->TransactionId;
+ /* 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);
+ atomic_dec(&netDevice->NumOutstandingSends);
}
else
{
static int
NetVscOnSend(
- DEVICE_OBJECT *Device,
- NETVSC_PACKET *Packet
+ struct hv_device *Device,
+ struct hv_netvsc_packet *Packet
)
{
- NETVSC_DEVICE* netDevice;
+ struct NETVSC_DEVICE *netDevice;
int ret=0;
- NVSP_MESSAGE sendMessage;
+ struct nvsp_message sendMessage;
DPRINT_ENTER(NETVSC);
sendMessage.Header.MessageType = NvspMessage1TypeSendRNDISPacket;
if (Packet->IsDataPacket)
- sendMessage.Messages.Version1Messages.SendRNDISPacket.ChannelType = 0;// 0 is RMC_DATA;
+ sendMessage.Messages.Version1Messages.SendRNDISPacket.ChannelType = 0;/* 0 is RMC_DATA; */
else
- sendMessage.Messages.Version1Messages.SendRNDISPacket.ChannelType = 1;// 1 is RMC_CONTROL;
+ sendMessage.Messages.Version1Messages.SendRNDISPacket.ChannelType = 1;/* 1 is RMC_CONTROL; */
- // Not using send buffer section
+ /* Not using send buffer section */
sendMessage.Messages.Version1Messages.SendRNDISPacket.SendBufferSectionIndex = 0xFFFFFFFF;
sendMessage.Messages.Version1Messages.SendRNDISPacket.SendBufferSectionSize = 0;
Packet->PageBuffers,
Packet->PageBufferCount,
&sendMessage,
- sizeof(NVSP_MESSAGE),
+ sizeof(struct nvsp_message),
(unsigned long)Packet);
}
else
{
ret = Device->Driver->VmbusChannelInterface.SendPacket(Device,
&sendMessage,
- sizeof(NVSP_MESSAGE),
+ sizeof(struct nvsp_message),
(unsigned long)Packet,
VmbusPacketTypeDataInBand,
VMBUS_DATA_PACKET_FLAG_COMPLETION_REQUESTED);
DPRINT_ERR(NETVSC, "Unable to send packet %p ret %d", Packet, ret);
}
- InterlockedIncrement(&netDevice->NumOutstandingSends);
+ atomic_inc(&netDevice->NumOutstandingSends);
PutNetDevice(Device);
DPRINT_EXIT(NETVSC);
static void
NetVscOnReceive(
- DEVICE_OBJECT *Device,
- VMPACKET_DESCRIPTOR *Packet
+ struct hv_device *Device,
+ struct vmpacket_descriptor *Packet
)
{
- NETVSC_DEVICE* netDevice;
- VMTRANSFER_PAGE_PACKET_HEADER *vmxferpagePacket;
- NVSP_MESSAGE *nvspPacket;
- NETVSC_PACKET *netvscPacket=NULL;
+ struct NETVSC_DEVICE *netDevice;
+ struct vmtransfer_page_packet_header *vmxferpagePacket;
+ struct nvsp_message *nvspPacket;
+ struct hv_netvsc_packet *netvscPacket=NULL;
LIST_ENTRY* entry;
unsigned long start;
unsigned long end, endVirtual;
- //NETVSC_DRIVER_OBJECT *netvscDriver;
- XFERPAGE_PACKET *xferpagePacket=NULL;
+ /* struct netvsc_driver *netvscDriver; */
+ struct xferpage_packet *xferpagePacket=NULL;
LIST_ENTRY listHead;
int i=0, j=0;
return;
}
- // All inbound packets other than send completion should be xfer page packet
+ /* 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);
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
+ /* 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);
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)
{
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
+ /*
+ * 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 (!IsListEmpty(&netDevice->ReceivePacketList))
{
entry = REMOVE_HEAD_LIST(&netDevice->ReceivePacketList);
- netvscPacket = CONTAINING_RECORD(entry, NETVSC_PACKET, ListEntry);
+ netvscPacket = CONTAINING_RECORD(entry, struct hv_netvsc_packet, ListEntry);
INSERT_TAIL_LIST(&listHead, &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...
+ /*
+ * 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
+ /* Return it to the freelist */
spin_lock_irqsave(&netDevice->receive_packet_list_lock, flags);
for (i=count; i != 0; i--)
{
entry = REMOVE_HEAD_LIST(&listHead);
- netvscPacket = CONTAINING_RECORD(entry, NETVSC_PACKET, ListEntry);
+ netvscPacket = CONTAINING_RECORD(entry, struct hv_netvsc_packet, ListEntry);
INSERT_TAIL_LIST(&netDevice->ReceivePacketList, &netvscPacket->ListEntry);
}
return;
}
- // Remove the 1st packet to represent the xfer page packet itself
+ /* 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
+ xferpagePacket = CONTAINING_RECORD(entry, struct xferpage_packet, ListEntry);
+ xferpagePacket->Count = count - 1; /* This is how much we can satisfy */
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
+ /* 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);
+ netvscPacket = CONTAINING_RECORD(entry, struct hv_netvsc_packet, ListEntry);
- // Initialize the netvsc packet
+ /* Initialize the netvsc packet */
netvscPacket->XferPagePacket = xferpagePacket;
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
+ netvscPacket->Completion.Recv.ReceiveCompletionTid = vmxferpagePacket->d.TransactionId; /* Save this so that we can send it back */
netvscPacket->TotalDataBufferLength = vmxferpagePacket->Ranges[i].ByteCount;
netvscPacket->PageBufferCount = 1;
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);
+ end = virt_to_phys((void*)endVirtual);
- // Calculate the page relative offset
+ /* 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:
+ /* 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;
bytesRemain -= PAGE_SIZE;
}
netvscPacket->PageBuffers[j].Pfn =
- GetPhysicalAddress((void*)(endVirtual - bytesRemain)) >> PAGE_SHIFT;
+ virt_to_phys((void*)(endVirtual - bytesRemain)) >> PAGE_SHIFT;
netvscPacket->PageBufferCount++;
if (bytesRemain == 0)
break;
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);
}
static void
NetVscSendReceiveCompletion(
- DEVICE_OBJECT *Device,
+ struct hv_device *Device,
u64 TransactionId
)
{
- NVSP_MESSAGE recvcompMessage;
+ struct nvsp_message recvcompMessage;
int retries=0;
int ret=0;
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),
+ sizeof(struct nvsp_message),
TransactionId,
VmbusPacketTypeCompletion,
0);
- if (ret == 0) // success
+ if (ret == 0) /* success */
{
- // no-op
+ /* no-op */
}
- else if (ret == -1) // no more room...wait a bit and attempt to retry 3 times
+ 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);
}
}
-//
-// Send a receive completion packet to RNDIS device (ie NetVsp)
-//
+/* 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;
+ struct hv_netvsc_packet *packet = (struct hv_netvsc_packet*)Context;
+ struct hv_device *device = (struct hv_device*)packet->Device;
+ struct NETVSC_DEVICE *netDevice;
u64 transactionId=0;
bool fSendReceiveComp = false;
unsigned long flags;
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)
{
return;
}
- // Overloading use of the lock.
+ /* 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
+ /* 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;
INSERT_TAIL_LIST(&netDevice->ReceivePacketList, &packet->XferPagePacket->ListEntry);
}
- // Put the packet back
+ /* Put the packet back */
INSERT_TAIL_LIST(&netDevice->ReceivePacketList, &packet->ListEntry);
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);
{
const int netPacketSize=2048;
int ret=0;
- DEVICE_OBJECT *device=(DEVICE_OBJECT*)Context;
- NETVSC_DEVICE *netDevice;
+ struct hv_device *device=(struct hv_device*)Context;
+ struct NETVSC_DEVICE *netDevice;
u32 bytesRecvd;
u64 requestId;
unsigned char packet[netPacketSize];
- VMPACKET_DESCRIPTOR *desc;
+ struct vmpacket_descriptor *desc;
unsigned char *buffer=packet;
int bufferlen=netPacketSize;
{
DPRINT_DBG(NETVSC, "receive %d bytes, tid %llx", bytesRecvd, requestId);
- desc = (VMPACKET_DESCRIPTOR*)buffer;
+ desc = (struct vmpacket_descriptor*)buffer;
switch (desc->Type)
{
case VmbusPacketTypeCompletion:
break;
}
- // reset
+ /* reset */
if (bufferlen > netPacketSize)
{
kfree(buffer);
}
else
{
- //DPRINT_DBG(NETVSC, "nothing else to read...");
+ /* DPRINT_DBG(NETVSC, "nothing else to read..."); */
- // reset
+ /* reset */
if (bufferlen > netPacketSize)
{
kfree(buffer);
break;
}
}
- else if (ret == -2) // Handle large packet
+ else if (ret == -2) /* Handle large packet */
{
buffer = kmalloc(bytesRecvd, GFP_ATOMIC);
if (buffer == NULL)
{
- // Try again next time around
+ /* Try again next time around */
DPRINT_ERR(NETVSC, "unable to allocate buffer of size (%d)!!", bytesRecvd);
break;
}
projects / ~andy / linux / blobdiff