Signed-off-by: Haiyang Zhang <haiyangz@xxxxxxxxxxxxx>
Signed-off-by: Hank Janssen <hjanssen@xxxxxxxxxxxxx>
---
drivers/staging/hv/netvsc.c | 852 ++++++++++++++++++++++---------------------
1 files changed, 445 insertions(+), 407 deletions(-)
diff --git a/drivers/staging/hv/netvsc.c b/drivers/staging/hv/netvsc.c
index 8022781..1c1ee57 100644
--- a/drivers/staging/hv/netvsc.c
+++ b/drivers/staging/hv/netvsc.c
@@ -31,141 +31,141 @@
/* Globals */
-static const char *gDriverName = "netvsc";
+static const char *driver_name = "netvsc";
/* {F8615163-DF3E-46c5-913F-F2D2F965ED0E} */
-static const struct hv_guid gNetVscDeviceType = {
+static const struct hv_guid netvsc_device_type = {
.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 NetVscOnDeviceAdd(struct hv_device *device, void *additional_info);
-static int NetVscOnDeviceRemove(struct hv_device *Device);
+static int NetVscOnDeviceRemove(struct hv_device *device);
-static void NetVscOnCleanup(struct hv_driver *Driver);
+static void NetVscOnCleanup(struct hv_driver *driver);
static void NetVscOnChannelCallback(void *context);
-static int NetVscInitializeSendBufferWithNetVsp(struct hv_device *Device);
+static int NetVscInitializeSendBufferWithNetVsp(struct hv_device *device);
-static int NetVscInitializeReceiveBufferWithNetVsp(struct hv_device *Device);
+static int NetVscInitializeReceiveBufferWithNetVsp(struct hv_device *device);
-static int NetVscDestroySendBuffer(struct netvsc_device *NetDevice);
+static int NetVscDestroySendBuffer(struct netvsc_device *net_device);
-static int NetVscDestroyReceiveBuffer(struct netvsc_device *NetDevice);
+static int NetVscDestroyReceiveBuffer(struct netvsc_device *net_device);
-static int NetVscConnectToVsp(struct hv_device *Device);
+static int NetVscConnectToVsp(struct hv_device *device);
-static void NetVscOnSendCompletion(struct hv_device *Device,
- struct vmpacket_descriptor *Packet);
+static void NetVscOnSendCompletion(struct hv_device *device,
+ struct vmpacket_descriptor *packet);
-static int NetVscOnSend(struct hv_device *Device,
- struct hv_netvsc_packet *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 NetVscOnReceive(struct hv_device *device,
+ struct vmpacket_descriptor *packet);
-static void NetVscOnReceiveCompletion(void *Context);
+static void NetVscOnReceiveCompletion(void *context);
-static void NetVscSendReceiveCompletion(struct hv_device *Device,
- u64 TransactionId);
+static void NetVscSendReceiveCompletion(struct hv_device *device,
+ u64 transaction_id);
-static struct netvsc_device *AllocNetDevice(struct hv_device *Device)
+static struct netvsc_device *AllocNetDevice(struct hv_device *device)
{
- struct netvsc_device *netDevice;
+ struct netvsc_device *net_device;
- netDevice = kzalloc(sizeof(struct netvsc_device), GFP_KERNEL);
- if (!netDevice)
+ net_device = kzalloc(sizeof(struct netvsc_device), GFP_KERNEL);
+ if (!net_device)
return NULL;
/* Set to 2 to allow both inbound and outbound traffic */
- atomic_cmpxchg(&netDevice->RefCount, 0, 2);
+ atomic_cmpxchg(&net_device->RefCount, 0, 2);
- netDevice->Device = Device;
- Device->Extension = netDevice;
+ net_device->Device = device;
+ device->Extension = net_device;
- return netDevice;
+ return net_device;
}
-static void FreeNetDevice(struct netvsc_device *Device)
+static void FreeNetDevice(struct netvsc_device *device)
{
- WARN_ON(atomic_read(&Device->RefCount) == 0);
- Device->Device->Extension = NULL;
- kfree(Device);
+ WARN_ON(atomic_read(&device->RefCount) == 0);
+ device->Device->Extension = NULL;
+ kfree(device);
}
/* Get the net device object iff exists and its refcount > 1 */
-static struct netvsc_device *GetOutboundNetDevice(struct hv_device *Device)
+static struct netvsc_device *GetOutboundNetDevice(struct hv_device *device)
{
- struct netvsc_device *netDevice;
+ struct netvsc_device *net_device;
- netDevice = Device->Extension;
- if (netDevice && atomic_read(&netDevice->RefCount) > 1)
- atomic_inc(&netDevice->RefCount);
+ net_device = device->Extension;
+ if (net_device && atomic_read(&net_device->RefCount) > 1)
+ atomic_inc(&net_device->RefCount);
else
- netDevice = NULL;
+ net_device = NULL;
- return netDevice;
+ return net_device;
}
/* Get the net device object iff exists and its refcount > 0 */
-static struct netvsc_device *GetInboundNetDevice(struct hv_device *Device)
+static struct netvsc_device *GetInboundNetDevice(struct hv_device *device)
{
- struct netvsc_device *netDevice;
+ struct netvsc_device *net_device;
- netDevice = Device->Extension;
- if (netDevice && atomic_read(&netDevice->RefCount))
- atomic_inc(&netDevice->RefCount);
+ net_device = device->Extension;
+ if (net_device && atomic_read(&net_device->RefCount))
+ atomic_inc(&net_device->RefCount);
else
- netDevice = NULL;
+ net_device = NULL;
- return netDevice;
+ return net_device;
}
-static void PutNetDevice(struct hv_device *Device)
+static void PutNetDevice(struct hv_device *device)
{
- struct netvsc_device *netDevice;
+ struct netvsc_device *net_device;
- netDevice = Device->Extension;
+ net_device = device->Extension;
/* ASSERT(netDevice); */
- atomic_dec(&netDevice->RefCount);
+ atomic_dec(&net_device->RefCount);
}
-static struct netvsc_device *ReleaseOutboundNetDevice(struct hv_device *Device)
+static struct netvsc_device *ReleaseOutboundNetDevice(struct hv_device *device)
{
- struct netvsc_device *netDevice;
+ struct netvsc_device *net_device;
- netDevice = Device->Extension;
- if (netDevice == NULL)
+ net_device = device->Extension;
+ if (net_device == NULL)
return NULL;
/* Busy wait until the ref drop to 2, then set it to 1 */
- while (atomic_cmpxchg(&netDevice->RefCount, 2, 1) != 2)
+ while (atomic_cmpxchg(&net_device->RefCount, 2, 1) != 2)
udelay(100);
- return netDevice;
+ return net_device;
}
-static struct netvsc_device *ReleaseInboundNetDevice(struct hv_device *Device)
+static struct netvsc_device *ReleaseInboundNetDevice(struct hv_device *device)
{
- struct netvsc_device *netDevice;
+ struct netvsc_device *net_device;
- netDevice = Device->Extension;
- if (netDevice == NULL)
+ net_device = device->Extension;
+ if (net_device == NULL)
return NULL;
/* Busy wait until the ref drop to 1, then set it to 0 */
- while (atomic_cmpxchg(&netDevice->RefCount, 1, 0) != 1)
+ while (atomic_cmpxchg(&net_device->RefCount, 1, 0) != 1)
udelay(100);
- Device->Extension = NULL;
- return netDevice;
+ device->Extension = NULL;
+ return net_device;
}
/*
@@ -185,8 +185,8 @@ int NetVscInitialize(struct hv_driver *drv)
/* 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(struct hv_guid));
+ drv->name = driver_name;
+ memcpy(&drv->deviceType, &netvsc_device_type, sizeof(struct hv_guid));
/* Make sure it is set by the caller */
/* FIXME: These probably should still be tested in some way */
@@ -204,14 +204,14 @@ int NetVscInitialize(struct hv_driver *drv)
return 0;
}
-static int NetVscInitializeReceiveBufferWithNetVsp(struct hv_device *Device)
+static int NetVscInitializeReceiveBufferWithNetVsp(struct hv_device *device)
{
int ret = 0;
- struct netvsc_device *netDevice;
- struct nvsp_message *initPacket;
+ struct netvsc_device *net_device;
+ struct nvsp_message *init_packet;
- netDevice = GetOutboundNetDevice(Device);
- if (!netDevice) {
+ net_device = GetOutboundNetDevice(device);
+ if (!net_device) {
DPRINT_ERR(NETVSC, "unable to get net device..."
"device being destroyed?");
return -1;
@@ -220,12 +220,12 @@ static int NetVscInitializeReceiveBufferWithNetVsp(struct hv_device *Device)
/* page-size grandularity */
/* ASSERT((netDevice->ReceiveBufferSize & (PAGE_SIZE - 1)) == 0); */
- netDevice->ReceiveBuffer =
- osd_page_alloc(netDevice->ReceiveBufferSize >> PAGE_SHIFT);
- if (!netDevice->ReceiveBuffer) {
+ net_device->ReceiveBuffer =
+ osd_page_alloc(net_device->ReceiveBufferSize >> PAGE_SHIFT);
+ if (!net_device->ReceiveBuffer) {
DPRINT_ERR(NETVSC,
"unable to allocate receive buffer of size %d",
- netDevice->ReceiveBufferSize);
+ net_device->ReceiveBufferSize);
ret = -1;
goto Cleanup;
}
@@ -240,9 +240,9 @@ static int NetVscInitializeReceiveBufferWithNetVsp(struct hv_device *Device)
* channel. Note: This call uses the vmbus connection rather
* than the channel to establish the gpadl handle.
*/
- ret = vmbus_establish_gpadl(Device->channel, netDevice->ReceiveBuffer,
- netDevice->ReceiveBufferSize,
- &netDevice->ReceiveBufferGpadlHandle);
+ ret = vmbus_establish_gpadl(device->channel, net_device->ReceiveBuffer,
+ net_device->ReceiveBufferSize,
+ &net_device->ReceiveBufferGpadlHandle);
if (ret != 0) {
DPRINT_ERR(NETVSC,
"unable to establish receive buffer's gpadl");
@@ -254,18 +254,20 @@ static int NetVscInitializeReceiveBufferWithNetVsp(struct hv_device *Device)
/* Notify the NetVsp of the gpadl handle */
DPRINT_INFO(NETVSC, "Sending NvspMessage1TypeSendReceiveBuffer...");
- initPacket = &netDevice->ChannelInitPacket;
+ init_packet = &net_device->ChannelInitPacket;
- memset(initPacket, 0, sizeof(struct nvsp_message));
+ memset(init_packet, 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;
+ init_packet->Header.MessageType = NvspMessage1TypeSendReceiveBuffer;
+ init_packet->Messages.Version1Messages.SendReceiveBuffer.
+ GpadlHandle = net_device->ReceiveBufferGpadlHandle;
+ init_packet->Messages.Version1Messages.
+ SendReceiveBuffer.Id = NETVSC_RECEIVE_BUFFER_ID;
/* Send the gpadl notification request */
- ret = vmbus_sendpacket(Device->channel, initPacket,
+ ret = vmbus_sendpacket(device->channel, init_packet,
sizeof(struct nvsp_message),
- (unsigned long)initPacket,
+ (unsigned long)init_packet,
VmbusPacketTypeDataInBand,
VMBUS_DATA_PACKET_FLAG_COMPLETION_REQUESTED);
if (ret != 0) {
@@ -274,13 +276,15 @@ static int NetVscInitializeReceiveBufferWithNetVsp(struct hv_device *Device)
goto Cleanup;
}
- osd_waitevent_wait(netDevice->ChannelInitEvent);
+ osd_waitevent_wait(net_device->ChannelInitEvent);
/* Check the response */
- if (initPacket->Messages.Version1Messages.SendReceiveBufferComplete.Status != NvspStatusSuccess) {
+ if (init_packet->Messages.Version1Messages.
+ SendReceiveBufferComplete.Status != NvspStatusSuccess) {
DPRINT_ERR(NETVSC, "Unable to complete receive buffer "
"initialzation with NetVsp - status %d",
- initPacket->Messages.Version1Messages.SendReceiveBufferComplete.Status);
+ init_packet->Messages.Version1Messages.
+ SendReceiveBufferComplete.Status);
ret = -1;
goto Cleanup;
}
@@ -289,32 +293,36 @@ static int NetVscInitializeReceiveBufferWithNetVsp(struct hv_device *Device)
/* ASSERT(netDevice->ReceiveSectionCount == 0); */
/* ASSERT(netDevice->ReceiveSections == NULL); */
- netDevice->ReceiveSectionCount = initPacket->Messages.Version1Messages.SendReceiveBufferComplete.NumSections;
+ net_device->ReceiveSectionCount = init_packet->Messages.
+ Version1Messages.SendReceiveBufferComplete.NumSections;
- netDevice->ReceiveSections = kmalloc(netDevice->ReceiveSectionCount * sizeof(struct nvsp_1_receive_buffer_section), GFP_KERNEL);
- if (netDevice->ReceiveSections == NULL) {
+ net_device->ReceiveSections = kmalloc(net_device->ReceiveSectionCount
+ * sizeof(struct nvsp_1_receive_buffer_section), GFP_KERNEL);
+ if (net_device->ReceiveSections == NULL) {
ret = -1;
goto Cleanup;
}
- memcpy(netDevice->ReceiveSections,
- initPacket->Messages.Version1Messages.SendReceiveBufferComplete.Sections,
- netDevice->ReceiveSectionCount * sizeof(struct nvsp_1_receive_buffer_section));
+ memcpy(net_device->ReceiveSections,
+ init_packet->Messages.Version1Messages.
+ SendReceiveBufferComplete.Sections,
+ net_device->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);
+ net_device->ReceiveSectionCount,
+ net_device->ReceiveSections[0].Offset,
+ net_device->ReceiveSections[0].EndOffset,
+ net_device->ReceiveSections[0].SubAllocationSize,
+ net_device->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) {
+ if (net_device->ReceiveSectionCount != 1 ||
+ net_device->ReceiveSections->Offset != 0) {
ret = -1;
goto Cleanup;
}
@@ -322,26 +330,26 @@ static int NetVscInitializeReceiveBufferWithNetVsp(struct hv_device *Device)
goto Exit;
Cleanup:
- NetVscDestroyReceiveBuffer(netDevice);
+ NetVscDestroyReceiveBuffer(net_device);
Exit:
- PutNetDevice(Device);
+ PutNetDevice(device);
return ret;
}
-static int NetVscInitializeSendBufferWithNetVsp(struct hv_device *Device)
+static int NetVscInitializeSendBufferWithNetVsp(struct hv_device *device)
{
int ret = 0;
- struct netvsc_device *netDevice;
- struct nvsp_message *initPacket;
+ struct netvsc_device *net_device;
+ struct nvsp_message *init_packet;
- netDevice = GetOutboundNetDevice(Device);
- if (!netDevice) {
+ net_device = GetOutboundNetDevice(device);
+ if (!net_device) {
DPRINT_ERR(NETVSC, "unable to get net device..."
"device being destroyed?");
return -1;
}
- if (netDevice->SendBufferSize <= 0) {
+ if (net_device->SendBufferSize <= 0) {
ret = -EINVAL;
goto Cleanup;
}
@@ -349,11 +357,11 @@ static int NetVscInitializeSendBufferWithNetVsp(struct hv_device *Device)
/* page-size grandularity */
/* ASSERT((netDevice->SendBufferSize & (PAGE_SIZE - 1)) == 0); */
- netDevice->SendBuffer =
- osd_page_alloc(netDevice->SendBufferSize >> PAGE_SHIFT);
- if (!netDevice->SendBuffer) {
+ net_device->SendBuffer =
+ osd_page_alloc(net_device->SendBufferSize >> PAGE_SHIFT);
+ if (!net_device->SendBuffer) {
DPRINT_ERR(NETVSC, "unable to allocate send buffer of size %d",
- netDevice->SendBufferSize);
+ net_device->SendBufferSize);
ret = -1;
goto Cleanup;
}
@@ -367,9 +375,9 @@ static int NetVscInitializeSendBufferWithNetVsp(struct hv_device *Device)
* channel. Note: This call uses the vmbus connection rather
* than the channel to establish the gpadl handle.
*/
- ret = vmbus_establish_gpadl(Device->channel, netDevice->SendBuffer,
- netDevice->SendBufferSize,
- &netDevice->SendBufferGpadlHandle);
+ ret = vmbus_establish_gpadl(device->channel, net_device->SendBuffer,
+ net_device->SendBufferSize,
+ &net_device->SendBufferGpadlHandle);
if (ret != 0) {
DPRINT_ERR(NETVSC, "unable to establish send buffer's gpadl");
goto Cleanup;
@@ -380,18 +388,20 @@ static int NetVscInitializeSendBufferWithNetVsp(struct hv_device *Device)
/* Notify the NetVsp of the gpadl handle */
DPRINT_INFO(NETVSC, "Sending NvspMessage1TypeSendSendBuffer...");
- initPacket = &netDevice->ChannelInitPacket;
+ init_packet = &net_device->ChannelInitPacket;
- memset(initPacket, 0, sizeof(struct nvsp_message));
+ memset(init_packet, 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;
+ init_packet->Header.MessageType = NvspMessage1TypeSendSendBuffer;
+ init_packet->Messages.Version1Messages.SendReceiveBuffer.
+ GpadlHandle = net_device->SendBufferGpadlHandle;
+ init_packet->Messages.Version1Messages.SendReceiveBuffer.Id =
+ NETVSC_SEND_BUFFER_ID;
/* Send the gpadl notification request */
- ret = vmbus_sendpacket(Device->channel, initPacket,
+ ret = vmbus_sendpacket(device->channel, init_packet,
sizeof(struct nvsp_message),
- (unsigned long)initPacket,
+ (unsigned long)init_packet,
VmbusPacketTypeDataInBand,
VMBUS_DATA_PACKET_FLAG_COMPLETION_REQUESTED);
if (ret != 0) {
@@ -400,32 +410,35 @@ static int NetVscInitializeSendBufferWithNetVsp(struct hv_device *Device)
goto Cleanup;
}
- osd_waitevent_wait(netDevice->ChannelInitEvent);
+ osd_waitevent_wait(net_device->ChannelInitEvent);
/* Check the response */
- if (initPacket->Messages.Version1Messages.SendSendBufferComplete.Status != NvspStatusSuccess) {
+ if (init_packet->Messages.Version1Messages.
+ SendSendBufferComplete.Status != NvspStatusSuccess) {
DPRINT_ERR(NETVSC, "Unable to complete send buffer "
"initialzation with NetVsp - status %d",
- initPacket->Messages.Version1Messages.SendSendBufferComplete.Status);
+ init_packet->Messages.Version1Messages.
+ SendSendBufferComplete.Status);
ret = -1;
goto Cleanup;
}
- netDevice->SendSectionSize = initPacket->Messages.Version1Messages.SendSendBufferComplete.SectionSize;
+ net_device->SendSectionSize = init_packet->
+ Messages.Version1Messages.SendSendBufferComplete.SectionSize;
goto Exit;
Cleanup:
- NetVscDestroySendBuffer(netDevice);
+ NetVscDestroySendBuffer(net_device);
Exit:
- PutNetDevice(Device);
+ PutNetDevice(device);
return ret;
}
-static int NetVscDestroyReceiveBuffer(struct netvsc_device *NetDevice)
+static int NetVscDestroyReceiveBuffer(struct netvsc_device *net_device)
{
- struct nvsp_message *revokePacket;
+ struct nvsp_message *revoke_packet;
int ret = 0;
/*
@@ -434,20 +447,23 @@ static int NetVscDestroyReceiveBuffer(struct netvsc_device *NetDevice)
* NvspMessage1TypeSendReceiveBuffer msg) therefore, we need
* to send a revoke msg here
*/
- if (NetDevice->ReceiveSectionCount) {
+ if (net_device->ReceiveSectionCount) {
DPRINT_INFO(NETVSC,
"Sending NvspMessage1TypeRevokeReceiveBuffer...");
/* Send the revoke receive buffer */
- revokePacket = &NetDevice->RevokePacket;
- memset(revokePacket, 0, sizeof(struct nvsp_message));
+ revoke_packet = &net_device->RevokePacket;
+ memset(revoke_packet, 0, sizeof(struct nvsp_message));
- revokePacket->Header.MessageType = NvspMessage1TypeRevokeReceiveBuffer;
- revokePacket->Messages.Version1Messages.RevokeReceiveBuffer.Id = NETVSC_RECEIVE_BUFFER_ID;
+ revoke_packet->Header.MessageType =
+ NvspMessage1TypeRevokeReceiveBuffer;
+ revoke_packet->Messages.Version1Messages.
+ RevokeReceiveBuffer.Id = NETVSC_RECEIVE_BUFFER_ID;
- ret = vmbus_sendpacket(NetDevice->Device->channel, revokePacket,
+ ret = vmbus_sendpacket(net_device->Device->channel,
+ revoke_packet,
sizeof(struct nvsp_message),
- (unsigned long)revokePacket,
+ (unsigned long)revoke_packet,
VmbusPacketTypeDataInBand, 0);
/*
* If we failed here, we might as well return and
@@ -461,11 +477,11 @@ static int NetVscDestroyReceiveBuffer(struct netvsc_device *NetDevice)
}
/* Teardown the gpadl on the vsp end */
- if (NetDevice->ReceiveBufferGpadlHandle) {
+ if (net_device->ReceiveBufferGpadlHandle) {
DPRINT_INFO(NETVSC, "Tearing down receive buffer's GPADL...");
- ret = vmbus_teardown_gpadl(NetDevice->Device->channel,
- NetDevice->ReceiveBufferGpadlHandle);
+ ret = vmbus_teardown_gpadl(net_device->Device->channel,
+ net_device->ReceiveBufferGpadlHandle);
/* If we failed here, we might as well return and have a leak rather than continue and a bugchk */
if (ret != 0) {
@@ -473,30 +489,30 @@ static int NetVscDestroyReceiveBuffer(struct netvsc_device *NetDevice)
"unable to teardown receive buffer's gpadl");
return -1;
}
- NetDevice->ReceiveBufferGpadlHandle = 0;
+ net_device->ReceiveBufferGpadlHandle = 0;
}
- if (NetDevice->ReceiveBuffer) {
+ if (net_device->ReceiveBuffer) {
DPRINT_INFO(NETVSC, "Freeing up receive buffer...");
/* Free up the receive buffer */
- osd_page_free(NetDevice->ReceiveBuffer,
- NetDevice->ReceiveBufferSize >> PAGE_SHIFT);
- NetDevice->ReceiveBuffer = NULL;
+ osd_page_free(net_device->ReceiveBuffer,
+ net_device->ReceiveBufferSize >> PAGE_SHIFT);
+ net_device->ReceiveBuffer = NULL;
}
- if (NetDevice->ReceiveSections) {
- NetDevice->ReceiveSectionCount = 0;
- kfree(NetDevice->ReceiveSections);
- NetDevice->ReceiveSections = NULL;
+ if (net_device->ReceiveSections) {
+ net_device->ReceiveSectionCount = 0;
+ kfree(net_device->ReceiveSections);
+ net_device->ReceiveSections = NULL;
}
return ret;
}
-static int NetVscDestroySendBuffer(struct netvsc_device *NetDevice)
+static int NetVscDestroySendBuffer(struct netvsc_device *net_device)
{
- struct nvsp_message *revokePacket;
+ struct nvsp_message *revoke_packet;
int ret = 0;
/*
@@ -505,20 +521,23 @@ static int NetVscDestroySendBuffer(struct netvsc_device *NetDevice)
* NvspMessage1TypeSendReceiveBuffer msg) therefore, we need
* to send a revoke msg here
*/
- if (NetDevice->SendSectionSize) {
+ if (net_device->SendSectionSize) {
DPRINT_INFO(NETVSC,
"Sending NvspMessage1TypeRevokeSendBuffer...");
/* Send the revoke send buffer */
- revokePacket = &NetDevice->RevokePacket;
- memset(revokePacket, 0, sizeof(struct nvsp_message));
+ revoke_packet = &net_device->RevokePacket;
+ memset(revoke_packet, 0, sizeof(struct nvsp_message));
- revokePacket->Header.MessageType = NvspMessage1TypeRevokeSendBuffer;
- revokePacket->Messages.Version1Messages.RevokeSendBuffer.Id = NETVSC_SEND_BUFFER_ID;
+ revoke_packet->Header.MessageType =
+ NvspMessage1TypeRevokeSendBuffer;
+ revoke_packet->Messages.Version1Messages.
+ RevokeSendBuffer.Id = NETVSC_SEND_BUFFER_ID;
- ret = vmbus_sendpacket(NetDevice->Device->channel, revokePacket,
+ ret = vmbus_sendpacket(net_device->Device->channel,
+ revoke_packet,
sizeof(struct nvsp_message),
- (unsigned long)revokePacket,
+ (unsigned long)revoke_packet,
VmbusPacketTypeDataInBand, 0);
/*
* If we failed here, we might as well return and have a leak
@@ -532,10 +551,10 @@ static int NetVscDestroySendBuffer(struct netvsc_device *NetDevice)
}
/* Teardown the gpadl on the vsp end */
- if (NetDevice->SendBufferGpadlHandle) {
+ if (net_device->SendBufferGpadlHandle) {
DPRINT_INFO(NETVSC, "Tearing down send buffer's GPADL...");
- ret = vmbus_teardown_gpadl(NetDevice->Device->channel,
- NetDevice->SendBufferGpadlHandle);
+ ret = vmbus_teardown_gpadl(net_device->Device->channel,
+ net_device->SendBufferGpadlHandle);
/*
* If we failed here, we might as well return and have a leak
@@ -546,49 +565,51 @@ static int NetVscDestroySendBuffer(struct netvsc_device *NetDevice)
"gpadl");
return -1;
}
- NetDevice->SendBufferGpadlHandle = 0;
+ net_device->SendBufferGpadlHandle = 0;
}
- if (NetDevice->SendBuffer) {
+ if (net_device->SendBuffer) {
DPRINT_INFO(NETVSC, "Freeing up send buffer...");
/* Free up the receive buffer */
- osd_page_free(NetDevice->SendBuffer,
- NetDevice->SendBufferSize >> PAGE_SHIFT);
- NetDevice->SendBuffer = NULL;
+ osd_page_free(net_device->SendBuffer,
+ net_device->SendBufferSize >> PAGE_SHIFT);
+ net_device->SendBuffer = NULL;
}
return ret;
}
-static int NetVscConnectToVsp(struct hv_device *Device)
+static int NetVscConnectToVsp(struct hv_device *device)
{
int ret;
- struct netvsc_device *netDevice;
- struct nvsp_message *initPacket;
- int ndisVersion;
+ struct netvsc_device *net_device;
+ struct nvsp_message *init_packet;
+ int ndis_version;
- netDevice = GetOutboundNetDevice(Device);
- if (!netDevice) {
+ net_device = GetOutboundNetDevice(device);
+ if (!net_device) {
DPRINT_ERR(NETVSC, "unable to get net device..."
"device being destroyed?");
return -1;
}
- initPacket = &netDevice->ChannelInitPacket;
+ init_packet = &net_device->ChannelInitPacket;
- 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;
+ memset(init_packet, 0, sizeof(struct nvsp_message));
+ init_packet->Header.MessageType = NvspMessageTypeInit;
+ init_packet->Messages.InitMessages.Init.MinProtocolVersion =
+ NVSP_MIN_PROTOCOL_VERSION;
+ init_packet->Messages.InitMessages.Init.MaxProtocolVersion =
+ NVSP_MAX_PROTOCOL_VERSION;
DPRINT_INFO(NETVSC, "Sending NvspMessageTypeInit...");
/* Send the init request */
- ret = vmbus_sendpacket(Device->channel, initPacket,
+ ret = vmbus_sendpacket(device->channel, init_packet,
sizeof(struct nvsp_message),
- (unsigned long)initPacket,
+ (unsigned long)init_packet,
VmbusPacketTypeDataInBand,
VMBUS_DATA_PACKET_FLAG_COMPLETION_REQUESTED);
@@ -597,47 +618,52 @@ static int NetVscConnectToVsp(struct hv_device *Device)
goto Cleanup;
}
- osd_waitevent_wait(netDevice->ChannelInitEvent);
+ osd_waitevent_wait(net_device->ChannelInitEvent);
/* 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);
+ init_packet->Messages.InitMessages.InitComplete.Status,
+ init_packet->Messages.InitMessages.
+ InitComplete.MaximumMdlChainLength);
- if (initPacket->Messages.InitMessages.InitComplete.Status !=
+ if (init_packet->Messages.InitMessages.InitComplete.Status !=
NvspStatusSuccess) {
DPRINT_ERR(NETVSC,
"unable to initialize with netvsp (status 0x%x)",
- initPacket->Messages.InitMessages.InitComplete.Status);
+ init_packet->Messages.InitMessages.InitComplete.Status);
ret = -1;
goto Cleanup;
}
- if (initPacket->Messages.InitMessages.InitComplete.NegotiatedProtocolVersion != NVSP_PROTOCOL_VERSION_1) {
+ if (init_packet->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);
+ init_packet->Messages.InitMessages.
+ InitComplete.NegotiatedProtocolVersion);
ret = -1;
goto Cleanup;
}
DPRINT_INFO(NETVSC, "Sending NvspMessage1TypeSendNdisVersion...");
/* Send the ndis version */
- memset(initPacket, 0, sizeof(struct nvsp_message));
+ memset(init_packet, 0, sizeof(struct nvsp_message));
- ndisVersion = 0x00050000;
+ ndis_version = 0x00050000;
- initPacket->Header.MessageType = NvspMessage1TypeSendNdisVersion;
- initPacket->Messages.Version1Messages.SendNdisVersion.NdisMajorVersion =
- (ndisVersion & 0xFFFF0000) >> 16;
- initPacket->Messages.Version1Messages.SendNdisVersion.NdisMinorVersion =
- ndisVersion & 0xFFFF;
+ init_packet->Header.MessageType = NvspMessage1TypeSendNdisVersion;
+ init_packet->Messages.Version1Messages.
+ SendNdisVersion.NdisMajorVersion =
+ (ndis_version & 0xFFFF0000) >> 16;
+ init_packet->Messages.Version1Messages.
+ SendNdisVersion.NdisMinorVersion =
+ ndis_version & 0xFFFF;
/* Send the init request */
- ret = vmbus_sendpacket(Device->channel, initPacket,
+ ret = vmbus_sendpacket(device->channel, init_packet,
sizeof(struct nvsp_message),
- (unsigned long)initPacket,
+ (unsigned long)init_packet,
VmbusPacketTypeDataInBand, 0);
if (ret != 0) {
DPRINT_ERR(NETVSC,
@@ -654,48 +680,48 @@ static int NetVscConnectToVsp(struct hv_device *Device)
/* osd_waitevent_wait(NetVscChannel->ChannelInitEvent); */
/* Post the big receive buffer to NetVSP */
- ret = NetVscInitializeReceiveBufferWithNetVsp(Device);
+ ret = NetVscInitializeReceiveBufferWithNetVsp(device);
if (ret == 0)
- ret = NetVscInitializeSendBufferWithNetVsp(Device);
+ ret = NetVscInitializeSendBufferWithNetVsp(device);
Cleanup:
- PutNetDevice(Device);
+ PutNetDevice(device);
return ret;
}
-static void NetVscDisconnectFromVsp(struct netvsc_device *NetDevice)
+static void NetVscDisconnectFromVsp(struct netvsc_device *net_device)
{
- NetVscDestroyReceiveBuffer(NetDevice);
- NetVscDestroySendBuffer(NetDevice);
+ NetVscDestroyReceiveBuffer(net_device);
+ NetVscDestroySendBuffer(net_device);
}
/*
* NetVscOnDeviceAdd - Callback when the device belonging to this driver is added
*/
-static int NetVscOnDeviceAdd(struct hv_device *Device, void *AdditionalInfo)
+static int NetVscOnDeviceAdd(struct hv_device *device, void *additional_info)
{
int ret = 0;
int i;
- struct netvsc_device *netDevice;
+ struct netvsc_device *net_device;
struct hv_netvsc_packet *packet, *pos;
- struct netvsc_driver *netDriver =
- (struct netvsc_driver *)Device->Driver;
+ struct netvsc_driver *net_driver =
+ (struct netvsc_driver *)device->Driver;
- netDevice = AllocNetDevice(Device);
- if (!netDevice) {
+ net_device = AllocNetDevice(device);
+ if (!net_device) {
ret = -1;
goto Cleanup;
}
- DPRINT_DBG(NETVSC, "netvsc channel object allocated - %p", netDevice);
+ DPRINT_DBG(NETVSC, "netvsc channel object allocated - %p", net_device);
/* Initialize the NetVSC channel extension */
- netDevice->ReceiveBufferSize = NETVSC_RECEIVE_BUFFER_SIZE;
- spin_lock_init(&netDevice->receive_packet_list_lock);
+ net_device->ReceiveBufferSize = NETVSC_RECEIVE_BUFFER_SIZE;
+ spin_lock_init(&net_device->receive_packet_list_lock);
- netDevice->SendBufferSize = NETVSC_SEND_BUFFER_SIZE;
+ net_device->SendBufferSize = NETVSC_SEND_BUFFER_SIZE;
- INIT_LIST_HEAD(&netDevice->ReceivePacketList);
+ INIT_LIST_HEAD(&net_device->ReceivePacketList);
for (i = 0; i < NETVSC_RECEIVE_PACKETLIST_COUNT; i++) {
packet = kzalloc(sizeof(struct hv_netvsc_packet) +
@@ -708,18 +734,18 @@ static int NetVscOnDeviceAdd(struct hv_device *Device, void *AdditionalInfo)
break;
}
list_add_tail(&packet->ListEntry,
- &netDevice->ReceivePacketList);
+ &net_device->ReceivePacketList);
}
- netDevice->ChannelInitEvent = osd_waitevent_create();
- if (!netDevice->ChannelInitEvent) {
+ net_device->ChannelInitEvent = osd_waitevent_create();
+ if (!net_device->ChannelInitEvent) {
ret = -ENOMEM;
goto Cleanup;
}
/* Open the channel */
- ret = vmbus_open(Device->channel, netDriver->RingBufferSize,
- netDriver->RingBufferSize, NULL, 0,
- NetVscOnChannelCallback, Device);
+ ret = vmbus_open(device->channel, net_driver->RingBufferSize,
+ net_driver->RingBufferSize, NULL, 0,
+ NetVscOnChannelCallback, device);
if (ret != 0) {
DPRINT_ERR(NETVSC, "unable to open channel: %d", ret);
@@ -731,7 +757,7 @@ static int NetVscOnDeviceAdd(struct hv_device *Device, void *AdditionalInfo)
DPRINT_INFO(NETVSC, "*** NetVSC channel opened successfully! ***");
/* Connect with the NetVsp */
- ret = NetVscConnectToVsp(Device);
+ ret = NetVscConnectToVsp(device);
if (ret != 0) {
DPRINT_ERR(NETVSC, "unable to connect to NetVSP - %d", ret);
ret = -1;
@@ -745,24 +771,24 @@ static int NetVscOnDeviceAdd(struct hv_device *Device, void *AdditionalInfo)
close:
/* Now, we can close the channel safely */
- vmbus_close(Device->channel);
+ vmbus_close(device->channel);
Cleanup:
- if (netDevice) {
- kfree(netDevice->ChannelInitEvent);
+ if (net_device) {
+ kfree(net_device->ChannelInitEvent);
list_for_each_entry_safe(packet, pos,
- &netDevice->ReceivePacketList,
+ &net_device->ReceivePacketList,
ListEntry) {
list_del(&packet->ListEntry);
kfree(packet);
}
- ReleaseOutboundNetDevice(Device);
- ReleaseInboundNetDevice(Device);
+ ReleaseOutboundNetDevice(device);
+ ReleaseInboundNetDevice(device);
- FreeNetDevice(netDevice);
+ FreeNetDevice(net_device);
}
return ret;
@@ -771,53 +797,53 @@ Cleanup:
/*
* NetVscOnDeviceRemove - Callback when the root bus device is removed
*/
-static int NetVscOnDeviceRemove(struct hv_device *Device)
+static int NetVscOnDeviceRemove(struct hv_device *device)
{
- struct netvsc_device *netDevice;
- struct hv_netvsc_packet *netvscPacket, *pos;
+ struct netvsc_device *net_device;
+ struct hv_netvsc_packet *netvsc_packet, *pos;
DPRINT_INFO(NETVSC, "Disabling outbound traffic on net device (%p)...",
- Device->Extension);
+ device->Extension);
/* Stop outbound traffic ie sends and receives completions */
- netDevice = ReleaseOutboundNetDevice(Device);
- if (!netDevice) {
+ net_device = ReleaseOutboundNetDevice(device);
+ if (!net_device) {
DPRINT_ERR(NETVSC, "No net device present!!");
return -1;
}
/* Wait for all send completions */
- while (atomic_read(&netDevice->NumOutstandingSends)) {
+ while (atomic_read(&net_device->NumOutstandingSends)) {
DPRINT_INFO(NETVSC, "waiting for %d requests to complete...",
- atomic_read(&netDevice->NumOutstandingSends));
+ atomic_read(&net_device->NumOutstandingSends));
udelay(100);
}
DPRINT_INFO(NETVSC, "Disconnecting from netvsp...");
- NetVscDisconnectFromVsp(netDevice);
+ NetVscDisconnectFromVsp(net_device);
DPRINT_INFO(NETVSC, "Disabling inbound traffic on net device (%p)...",
- Device->Extension);
+ device->Extension);
/* Stop inbound traffic ie receives and sends completions */
- netDevice = ReleaseInboundNetDevice(Device);
+ net_device = ReleaseInboundNetDevice(device);
/* At this point, no one should be accessing netDevice except in here */
- DPRINT_INFO(NETVSC, "net device (%p) safe to remove", netDevice);
+ DPRINT_INFO(NETVSC, "net device (%p) safe to remove", net_device);
/* Now, we can close the channel safely */
- vmbus_close(Device->channel);
+ vmbus_close(device->channel);
/* Release all resources */
- list_for_each_entry_safe(netvscPacket, pos,
- &netDevice->ReceivePacketList, ListEntry) {
- list_del(&netvscPacket->ListEntry);
- kfree(netvscPacket);
+ list_for_each_entry_safe(netvsc_packet, pos,
+ &net_device->ReceivePacketList, ListEntry) {
+ list_del(&netvsc_packet->ListEntry);
+ kfree(netvsc_packet);
}
- kfree(netDevice->ChannelInitEvent);
- FreeNetDevice(netDevice);
+ kfree(net_device->ChannelInitEvent);
+ FreeNetDevice(net_device);
return 0;
}
@@ -828,69 +854,72 @@ static void NetVscOnCleanup(struct hv_driver *drv)
{
}
-static void NetVscOnSendCompletion(struct hv_device *Device,
- struct vmpacket_descriptor *Packet)
+static void NetVscOnSendCompletion(struct hv_device *device,
+ struct vmpacket_descriptor *packet)
{
- struct netvsc_device *netDevice;
- struct nvsp_message *nvspPacket;
- struct hv_netvsc_packet *nvscPacket;
+ struct netvsc_device *net_device;
+ struct nvsp_message *nvsp_packet;
+ struct hv_netvsc_packet *nvsc_packet;
- netDevice = GetInboundNetDevice(Device);
- if (!netDevice) {
+ net_device = GetInboundNetDevice(device);
+ if (!net_device) {
DPRINT_ERR(NETVSC, "unable to get net device..."
"device being destroyed?");
return;
}
- nvspPacket = (struct nvsp_message *)((unsigned long)Packet + (Packet->DataOffset8 << 3));
+ nvsp_packet = (struct nvsp_message *)((unsigned long)packet +
+ (packet->DataOffset8 << 3));
DPRINT_DBG(NETVSC, "send completion packet - type %d",
- nvspPacket->Header.MessageType);
+ nvsp_packet->Header.MessageType);
- if ((nvspPacket->Header.MessageType == NvspMessageTypeInitComplete) ||
- (nvspPacket->Header.MessageType ==
+ if ((nvsp_packet->Header.MessageType == NvspMessageTypeInitComplete) ||
+ (nvsp_packet->Header.MessageType ==
NvspMessage1TypeSendReceiveBufferComplete) ||
- (nvspPacket->Header.MessageType ==
+ (nvsp_packet->Header.MessageType ==
NvspMessage1TypeSendSendBufferComplete)) {
/* Copy the response back */
- memcpy(&netDevice->ChannelInitPacket, nvspPacket,
+ memcpy(&net_device->ChannelInitPacket, nvsp_packet,
sizeof(struct nvsp_message));
- osd_waitevent_set(netDevice->ChannelInitEvent);
- } else if (nvspPacket->Header.MessageType ==
+ osd_waitevent_set(net_device->ChannelInitEvent);
+ } else if (nvsp_packet->Header.MessageType ==
NvspMessage1TypeSendRNDISPacketComplete) {
/* Get the send context */
- nvscPacket = (struct hv_netvsc_packet *)(unsigned long)Packet->TransactionId;
+ nvsc_packet = (struct hv_netvsc_packet *)(unsigned long)
+ packet->TransactionId;
/* ASSERT(nvscPacket); */
/* Notify the layer above us */
- nvscPacket->Completion.Send.OnSendCompletion(nvscPacket->Completion.Send.SendCompletionContext);
+ nvsc_packet->Completion.Send.OnSendCompletion(
+ nvsc_packet->Completion.Send.SendCompletionContext);
- atomic_dec(&netDevice->NumOutstandingSends);
+ atomic_dec(&net_device->NumOutstandingSends);
} else {
DPRINT_ERR(NETVSC, "Unknown send completion packet type - "
- "%d received!!", nvspPacket->Header.MessageType);
+ "%d received!!", nvsp_packet->Header.MessageType);
}
- PutNetDevice(Device);
+ PutNetDevice(device);
}
-static int NetVscOnSend(struct hv_device *Device,
- struct hv_netvsc_packet *Packet)
+static int NetVscOnSend(struct hv_device *device,
+ struct hv_netvsc_packet *packet)
{
- struct netvsc_device *netDevice;
+ struct netvsc_device *net_device;
int ret = 0;
struct nvsp_message sendMessage;
- netDevice = GetOutboundNetDevice(Device);
- if (!netDevice) {
+ net_device = GetOutboundNetDevice(device);
+ if (!net_device) {
DPRINT_ERR(NETVSC, "net device (%p) shutting down..."
- "ignoring outbound packets", netDevice);
+ "ignoring outbound packets", net_device);
return -2;
}
sendMessage.Header.MessageType = NvspMessage1TypeSendRNDISPacket;
- if (Packet->IsDataPacket) {
+ if (packet->IsDataPacket) {
/* 0 is RMC_DATA; */
sendMessage.Messages.Version1Messages.SendRNDISPacket.ChannelType = 0;
} else {
@@ -902,17 +931,17 @@ static int NetVscOnSend(struct hv_device *Device,
sendMessage.Messages.Version1Messages.SendRNDISPacket.SendBufferSectionIndex = 0xFFFFFFFF;
sendMessage.Messages.Version1Messages.SendRNDISPacket.SendBufferSectionSize = 0;
- if (Packet->PageBufferCount) {
- ret = vmbus_sendpacket_pagebuffer(Device->channel,
- Packet->PageBuffers,
- Packet->PageBufferCount,
+ if (packet->PageBufferCount) {
+ ret = vmbus_sendpacket_pagebuffer(device->channel,
+ packet->PageBuffers,
+ packet->PageBufferCount,
&sendMessage,
sizeof(struct nvsp_message),
- (unsigned long)Packet);
+ (unsigned long)packet);
} else {
- ret = vmbus_sendpacket(Device->channel, &sendMessage,
+ ret = vmbus_sendpacket(device->channel, &sendMessage,
sizeof(struct nvsp_message),
- (unsigned long)Packet,
+ (unsigned long)packet,
VmbusPacketTypeDataInBand,
VMBUS_DATA_PACKET_FLAG_COMPLETION_REQUESTED);
@@ -920,31 +949,31 @@ static int NetVscOnSend(struct hv_device *Device,
if (ret != 0)
DPRINT_ERR(NETVSC, "Unable to send packet %p ret %d",
- Packet, ret);
+ packet, ret);
- atomic_inc(&netDevice->NumOutstandingSends);
- PutNetDevice(Device);
+ atomic_inc(&net_device->NumOutstandingSends);
+ PutNetDevice(device);
return ret;
}
-static void NetVscOnReceive(struct hv_device *Device,
- struct vmpacket_descriptor *Packet)
+static void NetVscOnReceive(struct hv_device *device,
+ struct vmpacket_descriptor *packet)
{
- struct netvsc_device *netDevice;
- struct vmtransfer_page_packet_header *vmxferpagePacket;
- struct nvsp_message *nvspPacket;
- struct hv_netvsc_packet *netvscPacket = NULL;
+ struct netvsc_device *net_device;
+ struct vmtransfer_page_packet_header *vmxferpage_packet;
+ struct nvsp_message *nvsp_packet;
+ struct hv_netvsc_packet *netvsc_packet = NULL;
unsigned long start;
- unsigned long end, endVirtual;
+ unsigned long end, end_virtual;
/* struct netvsc_driver *netvscDriver; */
- struct xferpage_packet *xferpagePacket = NULL;
+ struct xferpage_packet *xferpage_packet = NULL;
int i, j;
- int count = 0, bytesRemain = 0;
+ int count = 0, bytes_remain = 0;
unsigned long flags;
LIST_HEAD(listHead);
- netDevice = GetInboundNetDevice(Device);
- if (!netDevice) {
+ net_device = GetInboundNetDevice(device);
+ if (!net_device) {
DPRINT_ERR(NETVSC, "unable to get net device..."
"device being destroyed?");
return;
@@ -954,39 +983,40 @@ static void NetVscOnReceive(struct hv_device *Device,
* All inbound packets other than send completion should be xfer page
* packet
*/
- if (Packet->Type != VmbusPacketTypeDataUsingTransferPages) {
+ if (packet->Type != VmbusPacketTypeDataUsingTransferPages) {
DPRINT_ERR(NETVSC, "Unknown packet type received - %d",
- Packet->Type);
- PutNetDevice(Device);
+ packet->Type);
+ PutNetDevice(device);
return;
}
- nvspPacket = (struct nvsp_message *)((unsigned long)Packet +
- (Packet->DataOffset8 << 3));
+ nvsp_packet = (struct nvsp_message *)((unsigned long)packet +
+ (packet->DataOffset8 << 3));
/* Make sure this is a valid nvsp packet */
- if (nvspPacket->Header.MessageType != NvspMessage1TypeSendRNDISPacket) {
+ if (nvsp_packet->Header.MessageType !=
+ NvspMessage1TypeSendRNDISPacket) {
DPRINT_ERR(NETVSC, "Unknown nvsp packet type received - %d",
- nvspPacket->Header.MessageType);
- PutNetDevice(Device);
+ nvsp_packet->Header.MessageType);
+ PutNetDevice(device);
return;
}
DPRINT_DBG(NETVSC, "NVSP packet received - type %d",
- nvspPacket->Header.MessageType);
+ nvsp_packet->Header.MessageType);
- vmxferpagePacket = (struct vmtransfer_page_packet_header *)Packet;
+ vmxferpage_packet = (struct vmtransfer_page_packet_header *)packet;
- if (vmxferpagePacket->TransferPageSetId != NETVSC_RECEIVE_BUFFER_ID) {
+ if (vmxferpage_packet->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);
+ vmxferpage_packet->TransferPageSetId);
+ PutNetDevice(device);
return;
}
DPRINT_DBG(NETVSC, "xfer page - range count %d",
- vmxferpagePacket->RangeCount);
+ vmxferpage_packet->RangeCount);
/*
* Grab free packets (range count + 1) to represent this xfer
@@ -994,13 +1024,13 @@ static void NetVscOnReceive(struct hv_device *Device,
* 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)
+ spin_lock_irqsave(&net_device->receive_packet_list_lock, flags);
+ while (!list_empty(&net_device->ReceivePacketList)) {
+ list_move_tail(net_device->ReceivePacketList.next, &listHead);
+ if (++count == vmxferpage_packet->RangeCount + 1)
break;
}
- spin_unlock_irqrestore(&netDevice->receive_packet_list_lock, flags);
+ spin_unlock_irqrestore(&net_device->receive_packet_list_lock, flags);
/*
* We need at least 2 netvsc pkts (1 to represent the xfer
@@ -1010,129 +1040,137 @@ static void NetVscOnReceive(struct hv_device *Device,
if (count < 2) {
DPRINT_ERR(NETVSC, "Got only %d netvsc pkt...needed %d pkts. "
"Dropping this xfer page packet completely!",
- count, vmxferpagePacket->RangeCount + 1);
+ count, vmxferpage_packet->RangeCount + 1);
/* Return it to the freelist */
- spin_lock_irqsave(&netDevice->receive_packet_list_lock, flags);
+ spin_lock_irqsave(&net_device->receive_packet_list_lock, flags);
for (i = count; i != 0; i--) {
list_move_tail(listHead.next,
- &netDevice->ReceivePacketList);
+ &net_device->ReceivePacketList);
}
- spin_unlock_irqrestore(&netDevice->receive_packet_list_lock,
+ spin_unlock_irqrestore(&net_device->receive_packet_list_lock,
flags);
- NetVscSendReceiveCompletion(Device,
- vmxferpagePacket->d.TransactionId);
+ NetVscSendReceiveCompletion(device,
+ vmxferpage_packet->d.TransactionId);
- PutNetDevice(Device);
+ PutNetDevice(device);
return;
}
/* Remove the 1st packet to represent the xfer page packet itself */
- xferpagePacket = (struct xferpage_packet *)listHead.next;
- list_del(&xferpagePacket->ListEntry);
+ xferpage_packet = (struct xferpage_packet *)listHead.next;
+ list_del(&xferpage_packet->ListEntry);
/* This is how much we can satisfy */
- xferpagePacket->Count = count - 1;
+ xferpage_packet->Count = count - 1;
/* ASSERT(xferpagePacket->Count > 0 && xferpagePacket->Count <= */
/* vmxferpagePacket->RangeCount); */
- if (xferpagePacket->Count != vmxferpagePacket->RangeCount) {
+ if (xferpage_packet->Count != vmxferpage_packet->RangeCount) {
DPRINT_INFO(NETVSC, "Needed %d netvsc pkts to satisy this xfer "
- "page...got %d", vmxferpagePacket->RangeCount,
- xferpagePacket->Count);
+ "page...got %d", vmxferpage_packet->RangeCount,
+ xferpage_packet->Count);
}
/* 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);
+ netvsc_packet = (struct hv_netvsc_packet *)listHead.next;
+ list_del(&netvsc_packet->ListEntry);
/* Initialize the netvsc packet */
- netvscPacket->XferPagePacket = xferpagePacket;
- netvscPacket->Completion.Recv.OnReceiveCompletion =
+ netvsc_packet->XferPagePacket = xferpage_packet;
+ netvsc_packet->Completion.Recv.OnReceiveCompletion =
NetVscOnReceiveCompletion;
- netvscPacket->Completion.Recv.ReceiveCompletionContext =
- netvscPacket;
- netvscPacket->Device = Device;
+ netvsc_packet->Completion.Recv.ReceiveCompletionContext =
+ netvsc_packet;
+ netvsc_packet->Device = device;
/* Save this so that we can send it back */
- netvscPacket->Completion.Recv.ReceiveCompletionTid =
- vmxferpagePacket->d.TransactionId;
+ netvsc_packet->Completion.Recv.ReceiveCompletionTid =
+ vmxferpage_packet->d.TransactionId;
- netvscPacket->TotalDataBufferLength =
- vmxferpagePacket->Ranges[i].ByteCount;
- netvscPacket->PageBufferCount = 1;
+ netvsc_packet->TotalDataBufferLength =
+ vmxferpage_packet->Ranges[i].ByteCount;
+ netvsc_packet->PageBufferCount = 1;
/* ASSERT(vmxferpagePacket->Ranges[i].ByteOffset + */
/* vmxferpagePacket->Ranges[i].ByteCount < */
/* netDevice->ReceiveBufferSize); */
- netvscPacket->PageBuffers[0].Length =
- vmxferpagePacket->Ranges[i].ByteCount;
+ netvsc_packet->PageBuffers[0].Length =
+ vmxferpage_packet->Ranges[i].ByteCount;
- start = virt_to_phys((void *)((unsigned long)netDevice->ReceiveBuffer + vmxferpagePacket->Ranges[i].ByteOffset));
+ start = virt_to_phys((void *)((unsigned long)net_device->
+ ReceiveBuffer + vmxferpage_packet->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 = virt_to_phys((void *)endVirtual);
+ netvsc_packet->PageBuffers[0].Pfn = start >> PAGE_SHIFT;
+ end_virtual = (unsigned long)net_device->ReceiveBuffer
+ + vmxferpage_packet->Ranges[i].ByteOffset
+ + vmxferpage_packet->Ranges[i].ByteCount - 1;
+ end = virt_to_phys((void *)end_virtual);
/* Calculate the page relative offset */
- netvscPacket->PageBuffers[0].Offset =
- vmxferpagePacket->Ranges[i].ByteOffset & (PAGE_SIZE - 1);
+ netvsc_packet->PageBuffers[0].Offset =
+ vmxferpage_packet->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)
+ netvsc_packet->PageBuffers[0].Length =
+ (netvsc_packet->PageBuffers[0].Pfn <<
+ PAGE_SHIFT)
+ PAGE_SIZE - start;
- bytesRemain = netvscPacket->TotalDataBufferLength -
- netvscPacket->PageBuffers[0].Length;
+ bytes_remain = netvsc_packet->TotalDataBufferLength -
+ netvsc_packet->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;
+ netvsc_packet->PageBuffers[j].Offset = 0;
+ if (bytes_remain <= PAGE_SIZE) {
+ netvsc_packet->PageBuffers[j].Length =
+ bytes_remain;
+ bytes_remain = 0;
} else {
- netvscPacket->PageBuffers[j].Length = PAGE_SIZE;
- bytesRemain -= PAGE_SIZE;
+ netvsc_packet->PageBuffers[j].Length =
+ PAGE_SIZE;
+ bytes_remain -= PAGE_SIZE;
}
- netvscPacket->PageBuffers[j].Pfn =
- virt_to_phys((void *)(endVirtual - bytesRemain)) >> PAGE_SHIFT;
- netvscPacket->PageBufferCount++;
- if (bytesRemain == 0)
+ netvsc_packet->PageBuffers[j].Pfn =
+ virt_to_phys((void *)(end_virtual -
+ bytes_remain)) >> PAGE_SHIFT;
+ netvsc_packet->PageBufferCount++;
+ if (bytes_remain == 0)
break;
}
/* 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);
+ vmxferpage_packet->Ranges[i].ByteOffset,
+ vmxferpage_packet->Ranges[i].ByteCount,
+ netvsc_packet->PageBuffers[0].Pfn,
+ netvsc_packet->PageBuffers[0].Offset,
+ netvsc_packet->PageBuffers[0].Length);
/* Pass it to the upper layer */
- ((struct netvsc_driver *)Device->Driver)->OnReceiveCallback(Device, netvscPacket);
+ ((struct netvsc_driver *)device->Driver)->
+ OnReceiveCallback(device, netvsc_packet);
- NetVscOnReceiveCompletion(netvscPacket->Completion.Recv.ReceiveCompletionContext);
+ NetVscOnReceiveCompletion(netvsc_packet->
+ Completion.Recv.ReceiveCompletionContext);
}
/* ASSERT(list_empty(&listHead)); */
- PutNetDevice(Device);
+ PutNetDevice(device);
}
-static void NetVscSendReceiveCompletion(struct hv_device *Device,
- u64 TransactionId)
+static void NetVscSendReceiveCompletion(struct hv_device *device,
+ u64 transaction_id)
{
struct nvsp_message recvcompMessage;
int retries = 0;
int ret;
DPRINT_DBG(NETVSC, "Sending receive completion pkt - %llx",
- TransactionId);
+ transaction_id);
recvcompMessage.Header.MessageType =
NvspMessage1TypeSendRNDISPacketComplete;
@@ -1142,8 +1180,8 @@ static void NetVscSendReceiveCompletion(struct hv_device *Device,
retry_send_cmplt:
/* Send the completion */
- ret = vmbus_sendpacket(Device->channel, &recvcompMessage,
- sizeof(struct nvsp_message), TransactionId,
+ ret = vmbus_sendpacket(device->channel, &recvcompMessage,
+ sizeof(struct nvsp_message), transaction_id,
VmbusPacketTypeCompletion, 0);
if (ret == 0) {
/* success */
@@ -1152,7 +1190,7 @@ retry_send_cmplt:
/* 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);
+ "(tid %llx)...retrying %d", transaction_id, retries);
if (retries < 4) {
udelay(100);
@@ -1160,22 +1198,22 @@ retry_send_cmplt:
} else {
DPRINT_ERR(NETVSC, "unable to send receive completion "
"pkt (tid %llx)...give up retrying",
- TransactionId);
+ transaction_id);
}
} else {
DPRINT_ERR(NETVSC, "unable to send receive completion pkt - "
- "%llx", TransactionId);
+ "%llx", transaction_id);
}
}
/* Send a receive completion packet to RNDIS device (ie NetVsp) */
-static void NetVscOnReceiveCompletion(void *Context)
+static void NetVscOnReceiveCompletion(void *context)
{
- struct hv_netvsc_packet *packet = Context;
+ 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;
+ struct netvsc_device *net_device;
+ u64 transaction_id = 0;
+ bool fsend_receive_comp = false;
unsigned long flags;
/* ASSERT(packet->XferPagePacket); */
@@ -1185,15 +1223,15 @@ static void NetVscOnReceiveCompletion(void *Context)
* send out receive completion, we are using GetInboundNetDevice()
* since we may have disable outbound traffic already.
*/
- netDevice = GetInboundNetDevice(device);
- if (!netDevice) {
+ net_device = GetInboundNetDevice(device);
+ if (!net_device) {
DPRINT_ERR(NETVSC, "unable to get net device..."
"device being destroyed?");
return;
}
/* Overloading use of the lock. */
- spin_lock_irqsave(&netDevice->receive_packet_list_lock, flags);
+ spin_lock_irqsave(&net_device->receive_packet_list_lock, flags);
/* ASSERT(packet->XferPagePacket->Count > 0); */
packet->XferPagePacket->Count--;
@@ -1203,31 +1241,31 @@ static void NetVscOnReceiveCompletion(void *Context)
* Return the xfer page packet itself to the freelist
*/
if (packet->XferPagePacket->Count == 0) {
- fSendReceiveComp = true;
- transactionId = packet->Completion.Recv.ReceiveCompletionTid;
+ fsend_receive_comp = true;
+ transaction_id = packet->Completion.Recv.ReceiveCompletionTid;
list_add_tail(&packet->XferPagePacket->ListEntry,
- &netDevice->ReceivePacketList);
+ &net_device->ReceivePacketList);
}
/* Put the packet back */
- list_add_tail(&packet->ListEntry, &netDevice->ReceivePacketList);
- spin_unlock_irqrestore(&netDevice->receive_packet_list_lock, flags);
+ list_add_tail(&packet->ListEntry, &net_device->ReceivePacketList);
+ spin_unlock_irqrestore(&net_device->receive_packet_list_lock, flags);
/* Send a receive completion for the xfer page packet */
- if (fSendReceiveComp)
- NetVscSendReceiveCompletion(device, transactionId);
+ if (fsend_receive_comp)
+ NetVscSendReceiveCompletion(device, transaction_id);
PutNetDevice(device);
}
-static void NetVscOnChannelCallback(void *Context)
+static void NetVscOnChannelCallback(void *context)
{
int ret;
- struct hv_device *device = Context;
- struct netvsc_device *netDevice;
- u32 bytesRecvd;
- u64 requestId;
+ struct hv_device *device = context;
+ struct netvsc_device *net_device;
+ u32 bytes_recvd;
+ u64 request_id;
unsigned char *packet;
struct vmpacket_descriptor *desc;
unsigned char *buffer;
@@ -1241,20 +1279,20 @@ static void NetVscOnChannelCallback(void *Context)
return;
buffer = packet;
- netDevice = GetInboundNetDevice(device);
- if (!netDevice) {
+ net_device = GetInboundNetDevice(device);
+ if (!net_device) {
DPRINT_ERR(NETVSC, "net device (%p) shutting down..."
- "ignoring inbound packets", netDevice);
+ "ignoring inbound packets", net_device);
goto out;
}
do {
ret = vmbus_recvpacket_raw(device->channel, buffer, bufferlen,
- &bytesRecvd, &requestId);
+ &bytes_recvd, &request_id);
if (ret == 0) {
- if (bytesRecvd > 0) {
+ if (bytes_recvd > 0) {
DPRINT_DBG(NETVSC, "receive %d bytes, tid %llx",
- bytesRecvd, requestId);
+ bytes_recvd, request_id);
desc = (struct vmpacket_descriptor *)buffer;
switch (desc->Type) {
@@ -1270,8 +1308,8 @@ static void NetVscOnChannelCallback(void *Context)
DPRINT_ERR(NETVSC,
"unhandled packet type %d, "
"tid %llx len %d\n",
- desc->Type, requestId,
- bytesRecvd);
+ desc->Type, request_id,
+ bytes_recvd);
break;
}
@@ -1293,16 +1331,16 @@ static void NetVscOnChannelCallback(void *Context)
}
} else if (ret == -2) {
/* Handle large packet */
- buffer = kmalloc(bytesRecvd, GFP_ATOMIC);
+ buffer = kmalloc(bytes_recvd, GFP_ATOMIC);
if (buffer == NULL) {
/* Try again next time around */
DPRINT_ERR(NETVSC,
"unable to allocate buffer of size "
- "(%d)!!", bytesRecvd);
+ "(%d)!!", bytes_recvd);
break;
}
- bufferlen = bytesRecvd;
+ bufferlen = bytes_recvd;
}
} while (1);
--
1.6.3.2
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