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-rw-r--r--drivers/staging/hv/Channel.c4
-rw-r--r--drivers/staging/hv/ChannelMgmt.c1
-rw-r--r--drivers/staging/hv/Connection.c1
-rw-r--r--drivers/staging/hv/Hv.c206
-rw-r--r--drivers/staging/hv/Hv.h10
-rw-r--r--drivers/staging/hv/NetVsc.c1
-rw-r--r--drivers/staging/hv/NetVscApi.h4
-rw-r--r--drivers/staging/hv/RingBuffer.c153
-rw-r--r--drivers/staging/hv/RndisFilter.c11
-rw-r--r--drivers/staging/hv/StorVsc.c4
-rw-r--r--drivers/staging/hv/StorVscApi.h5
-rw-r--r--drivers/staging/hv/VersionInfo.h22
-rw-r--r--drivers/staging/hv/Vmbus.c7
-rw-r--r--drivers/staging/hv/blkvsc_drv.c11
-rw-r--r--drivers/staging/hv/netvsc_drv.c30
-rw-r--r--drivers/staging/hv/osd.c1
-rw-r--r--drivers/staging/hv/storvsc_drv.c228
-rw-r--r--drivers/staging/hv/vmbus.h12
-rw-r--r--drivers/staging/hv/vmbus_drv.c69
19 files changed, 291 insertions, 489 deletions
diff --git a/drivers/staging/hv/Channel.c b/drivers/staging/hv/Channel.c
index 746370e82115..e69e9ee704ac 100644
--- a/drivers/staging/hv/Channel.c
+++ b/drivers/staging/hv/Channel.c
@@ -20,6 +20,7 @@
*/
#include <linux/kernel.h>
#include <linux/mm.h>
+#include <linux/slab.h>
#include "osd.h"
#include "logging.h"
#include "VmbusPrivate.h"
@@ -991,9 +992,8 @@ void VmbusChannelOnTimer(unsigned long data)
{
struct vmbus_channel *channel = (struct vmbus_channel *)data;
- if (channel->OnChannelCallback) {
+ if (channel->OnChannelCallback)
channel->OnChannelCallback(channel->ChannelCallbackContext);
- }
}
/**
diff --git a/drivers/staging/hv/ChannelMgmt.c b/drivers/staging/hv/ChannelMgmt.c
index ef38467ed4e2..5f92c2102ab4 100644
--- a/drivers/staging/hv/ChannelMgmt.c
+++ b/drivers/staging/hv/ChannelMgmt.c
@@ -20,6 +20,7 @@
*/
#include <linux/kernel.h>
#include <linux/mm.h>
+#include <linux/slab.h>
#include <linux/list.h>
#include "osd.h"
#include "logging.h"
diff --git a/drivers/staging/hv/Connection.c b/drivers/staging/hv/Connection.c
index 43c2e6855015..e0ea9cf90f03 100644
--- a/drivers/staging/hv/Connection.c
+++ b/drivers/staging/hv/Connection.c
@@ -22,6 +22,7 @@
*/
#include <linux/kernel.h>
#include <linux/mm.h>
+#include <linux/slab.h>
#include <linux/vmalloc.h>
#include "osd.h"
#include "logging.h"
diff --git a/drivers/staging/hv/Hv.c b/drivers/staging/hv/Hv.c
index c2809f2a2ce0..5d53889fb4a4 100644
--- a/drivers/staging/hv/Hv.c
+++ b/drivers/staging/hv/Hv.c
@@ -21,6 +21,7 @@
*/
#include <linux/kernel.h>
#include <linux/mm.h>
+#include <linux/slab.h>
#include <linux/vmalloc.h>
#include "osd.h"
#include "logging.h"
@@ -208,50 +209,51 @@ int HvInit(void)
/* HvQueryHypervisorFeatures(maxLeaf); */
/*
- * Determine if we are running on xenlinux (ie x2v shim) or native
- * linux
+ * We only support running on top of Hyper-V
*/
rdmsrl(HV_X64_MSR_GUEST_OS_ID, gHvContext.GuestId);
- if (gHvContext.GuestId == 0) {
- /* Write our OS info */
- wrmsrl(HV_X64_MSR_GUEST_OS_ID, HV_LINUX_GUEST_ID);
- gHvContext.GuestId = HV_LINUX_GUEST_ID;
+
+ if (gHvContext.GuestId != 0) {
+ DPRINT_ERR(VMBUS, "Unknown guest id (0x%llx)!!",
+ gHvContext.GuestId);
+ goto Cleanup;
}
+ /* Write our OS info */
+ wrmsrl(HV_X64_MSR_GUEST_OS_ID, HV_LINUX_GUEST_ID);
+ gHvContext.GuestId = HV_LINUX_GUEST_ID;
+
/* See if the hypercall page is already set */
rdmsrl(HV_X64_MSR_HYPERCALL, hypercallMsr.AsUINT64);
- if (gHvContext.GuestId == HV_LINUX_GUEST_ID) {
- /* Allocate the hypercall page memory */
- /* virtAddr = osd_PageAlloc(1); */
- virtAddr = osd_VirtualAllocExec(PAGE_SIZE);
-
- if (!virtAddr) {
- DPRINT_ERR(VMBUS,
- "unable to allocate hypercall page!!");
- goto Cleanup;
- }
- hypercallMsr.Enable = 1;
- /* hypercallMsr.GuestPhysicalAddress =
- * virt_to_phys(virtAddr) >> PAGE_SHIFT; */
- hypercallMsr.GuestPhysicalAddress = vmalloc_to_pfn(virtAddr);
- wrmsrl(HV_X64_MSR_HYPERCALL, hypercallMsr.AsUINT64);
+ /*
+ * Allocate the hypercall page memory
+ * virtAddr = osd_PageAlloc(1);
+ */
+ virtAddr = osd_VirtualAllocExec(PAGE_SIZE);
- /* Confirm that hypercall page did get setup. */
- hypercallMsr.AsUINT64 = 0;
- rdmsrl(HV_X64_MSR_HYPERCALL, hypercallMsr.AsUINT64);
- if (!hypercallMsr.Enable) {
- DPRINT_ERR(VMBUS, "unable to set hypercall page!!");
- goto Cleanup;
- }
+ if (!virtAddr) {
+ DPRINT_ERR(VMBUS,
+ "unable to allocate hypercall page!!");
+ goto Cleanup;
+ }
- gHvContext.HypercallPage = virtAddr;
- } else {
- DPRINT_ERR(VMBUS, "Unknown guest id (0x%llx)!!",
- gHvContext.GuestId);
+ hypercallMsr.Enable = 1;
+
+ hypercallMsr.GuestPhysicalAddress = vmalloc_to_pfn(virtAddr);
+ wrmsrl(HV_X64_MSR_HYPERCALL, hypercallMsr.AsUINT64);
+
+ /* Confirm that hypercall page did get setup. */
+ hypercallMsr.AsUINT64 = 0;
+ rdmsrl(HV_X64_MSR_HYPERCALL, hypercallMsr.AsUINT64);
+
+ if (!hypercallMsr.Enable) {
+ DPRINT_ERR(VMBUS, "unable to set hypercall page!!");
goto Cleanup;
}
+ gHvContext.HypercallPage = virtAddr;
+
DPRINT_INFO(VMBUS, "Hypercall page VA=%p, PA=0x%0llx",
gHvContext.HypercallPage,
(u64)hypercallMsr.GuestPhysicalAddress << PAGE_SHIFT);
@@ -273,8 +275,6 @@ int HvInit(void)
gHvContext.SignalEventParam->FlagNumber = 0;
gHvContext.SignalEventParam->RsvdZ = 0;
- /* DPRINT_DBG(VMBUS, "My id %llu", HvGetCurrentPartitionId()); */
-
DPRINT_EXIT(VMBUS);
return ret;
@@ -311,17 +311,14 @@ void HvCleanup(void)
kfree(gHvContext.SignalEventBuffer);
}
- if (gHvContext.GuestId == HV_LINUX_GUEST_ID) {
- if (gHvContext.HypercallPage) {
- hypercallMsr.AsUINT64 = 0;
- wrmsrl(HV_X64_MSR_HYPERCALL, hypercallMsr.AsUINT64);
- vfree(gHvContext.HypercallPage);
- gHvContext.HypercallPage = NULL;
- }
+ if (gHvContext.HypercallPage) {
+ hypercallMsr.AsUINT64 = 0;
+ wrmsrl(HV_X64_MSR_HYPERCALL, hypercallMsr.AsUINT64);
+ vfree(gHvContext.HypercallPage);
+ gHvContext.HypercallPage = NULL;
}
DPRINT_EXIT(VMBUS);
-
}
/**
@@ -393,7 +390,7 @@ void HvSynicInit(void *irqarg)
union hv_synic_siefp siefp;
union hv_synic_sint sharedSint;
union hv_synic_scontrol sctrl;
- u64 guestID;
+
u32 irqVector = *((u32 *)(irqarg));
int cpu = smp_processor_id();
@@ -409,71 +406,41 @@ void HvSynicInit(void *irqarg)
DPRINT_INFO(VMBUS, "SynIC version: %llx", version);
- /* TODO: Handle SMP */
- if (gHvContext.GuestId == HV_XENLINUX_GUEST_ID) {
- DPRINT_INFO(VMBUS, "Skipping SIMP and SIEFP setup since "
- "it is already set.");
-
- rdmsrl(HV_X64_MSR_SIMP, simp.AsUINT64);
- rdmsrl(HV_X64_MSR_SIEFP, siefp.AsUINT64);
-
- DPRINT_DBG(VMBUS, "Simp: %llx, Sifep: %llx",
- simp.AsUINT64, siefp.AsUINT64);
-
- /*
- * Determine if we are running on xenlinux (ie x2v shim) or
- * native linux
- */
- rdmsrl(HV_X64_MSR_GUEST_OS_ID, guestID);
- if (guestID == HV_LINUX_GUEST_ID) {
- gHvContext.synICMessagePage[cpu] =
- phys_to_virt(simp.BaseSimpGpa << PAGE_SHIFT);
- gHvContext.synICEventPage[cpu] =
- phys_to_virt(siefp.BaseSiefpGpa << PAGE_SHIFT);
- } else {
- DPRINT_ERR(VMBUS, "unknown guest id!!");
- goto Cleanup;
- }
- DPRINT_DBG(VMBUS, "MAPPED: Simp: %p, Sifep: %p",
- gHvContext.synICMessagePage[cpu],
- gHvContext.synICEventPage[cpu]);
- } else {
- gHvContext.synICMessagePage[cpu] = (void *)get_zeroed_page(GFP_ATOMIC);
- if (gHvContext.synICMessagePage[cpu] == NULL) {
- DPRINT_ERR(VMBUS,
- "unable to allocate SYNIC message page!!");
- goto Cleanup;
- }
+ gHvContext.synICMessagePage[cpu] = (void *)get_zeroed_page(GFP_ATOMIC);
- gHvContext.synICEventPage[cpu] = (void *)get_zeroed_page(GFP_ATOMIC);
- if (gHvContext.synICEventPage[cpu] == NULL) {
- DPRINT_ERR(VMBUS,
- "unable to allocate SYNIC event page!!");
- goto Cleanup;
- }
+ if (gHvContext.synICMessagePage[cpu] == NULL) {
+ DPRINT_ERR(VMBUS,
+ "unable to allocate SYNIC message page!!");
+ goto Cleanup;
+ }
- /* Setup the Synic's message page */
- rdmsrl(HV_X64_MSR_SIMP, simp.AsUINT64);
- simp.SimpEnabled = 1;
- simp.BaseSimpGpa = virt_to_phys(gHvContext.synICMessagePage[cpu])
- >> PAGE_SHIFT;
+ gHvContext.synICEventPage[cpu] = (void *)get_zeroed_page(GFP_ATOMIC);
- DPRINT_DBG(VMBUS, "HV_X64_MSR_SIMP msr set to: %llx",
- simp.AsUINT64);
+ if (gHvContext.synICEventPage[cpu] == NULL) {
+ DPRINT_ERR(VMBUS,
+ "unable to allocate SYNIC event page!!");
+ goto Cleanup;
+ }
- wrmsrl(HV_X64_MSR_SIMP, simp.AsUINT64);
+ /* Setup the Synic's message page */
+ rdmsrl(HV_X64_MSR_SIMP, simp.AsUINT64);
+ simp.SimpEnabled = 1;
+ simp.BaseSimpGpa = virt_to_phys(gHvContext.synICMessagePage[cpu])
+ >> PAGE_SHIFT;
- /* Setup the Synic's event page */
- rdmsrl(HV_X64_MSR_SIEFP, siefp.AsUINT64);
- siefp.SiefpEnabled = 1;
- siefp.BaseSiefpGpa = virt_to_phys(gHvContext.synICEventPage[cpu])
- >> PAGE_SHIFT;
+ DPRINT_DBG(VMBUS, "HV_X64_MSR_SIMP msr set to: %llx", simp.AsUINT64);
- DPRINT_DBG(VMBUS, "HV_X64_MSR_SIEFP msr set to: %llx",
- siefp.AsUINT64);
+ wrmsrl(HV_X64_MSR_SIMP, simp.AsUINT64);
- wrmsrl(HV_X64_MSR_SIEFP, siefp.AsUINT64);
- }
+ /* Setup the Synic's event page */
+ rdmsrl(HV_X64_MSR_SIEFP, siefp.AsUINT64);
+ siefp.SiefpEnabled = 1;
+ siefp.BaseSiefpGpa = virt_to_phys(gHvContext.synICEventPage[cpu])
+ >> PAGE_SHIFT;
+
+ DPRINT_DBG(VMBUS, "HV_X64_MSR_SIEFP msr set to: %llx", siefp.AsUINT64);
+
+ wrmsrl(HV_X64_MSR_SIEFP, siefp.AsUINT64);
/* Setup the interception SINT. */
/* wrmsrl((HV_X64_MSR_SINT0 + HV_SYNIC_INTERCEPTION_SINT_INDEX), */
@@ -505,13 +472,11 @@ void HvSynicInit(void *irqarg)
return;
Cleanup:
- if (gHvContext.GuestId == HV_LINUX_GUEST_ID) {
- if (gHvContext.synICEventPage[cpu])
- osd_PageFree(gHvContext.synICEventPage[cpu], 1);
+ if (gHvContext.synICEventPage[cpu])
+ osd_PageFree(gHvContext.synICEventPage[cpu], 1);
- if (gHvContext.synICMessagePage[cpu])
- osd_PageFree(gHvContext.synICMessagePage[cpu], 1);
- }
+ if (gHvContext.synICMessagePage[cpu])
+ osd_PageFree(gHvContext.synICMessagePage[cpu], 1);
DPRINT_EXIT(VMBUS);
return;
@@ -542,27 +507,20 @@ void HvSynicCleanup(void *arg)
/* Disable the interrupt */
wrmsrl(HV_X64_MSR_SINT0 + VMBUS_MESSAGE_SINT, sharedSint.AsUINT64);
- /*
- * Disable and free the resources only if we are running as
- * native linux since in xenlinux, we are sharing the
- * resources with the x2v shim
- */
- if (gHvContext.GuestId == HV_LINUX_GUEST_ID) {
- rdmsrl(HV_X64_MSR_SIMP, simp.AsUINT64);
- simp.SimpEnabled = 0;
- simp.BaseSimpGpa = 0;
+ rdmsrl(HV_X64_MSR_SIMP, simp.AsUINT64);
+ simp.SimpEnabled = 0;
+ simp.BaseSimpGpa = 0;
- wrmsrl(HV_X64_MSR_SIMP, simp.AsUINT64);
+ wrmsrl(HV_X64_MSR_SIMP, simp.AsUINT64);
- rdmsrl(HV_X64_MSR_SIEFP, siefp.AsUINT64);
- siefp.SiefpEnabled = 0;
- siefp.BaseSiefpGpa = 0;
+ rdmsrl(HV_X64_MSR_SIEFP, siefp.AsUINT64);
+ siefp.SiefpEnabled = 0;
+ siefp.BaseSiefpGpa = 0;
- wrmsrl(HV_X64_MSR_SIEFP, siefp.AsUINT64);
+ wrmsrl(HV_X64_MSR_SIEFP, siefp.AsUINT64);
- osd_PageFree(gHvContext.synICMessagePage[cpu], 1);
- osd_PageFree(gHvContext.synICEventPage[cpu], 1);
- }
+ osd_PageFree(gHvContext.synICMessagePage[cpu], 1);
+ osd_PageFree(gHvContext.synICEventPage[cpu], 1);
DPRINT_EXIT(VMBUS);
}
diff --git a/drivers/staging/hv/Hv.h b/drivers/staging/hv/Hv.h
index fce4b5cdac30..41f5ebb86e17 100644
--- a/drivers/staging/hv/Hv.h
+++ b/drivers/staging/hv/Hv.h
@@ -41,11 +41,6 @@ enum {
#define HV_PRESENT_BIT 0x80000000
-#define HV_XENLINUX_GUEST_ID_LO 0x00000000
-#define HV_XENLINUX_GUEST_ID_HI 0x0B00B135
-#define HV_XENLINUX_GUEST_ID (((u64)HV_XENLINUX_GUEST_ID_HI << 32) \
- | HV_XENLINUX_GUEST_ID_LO)
-
#define HV_LINUX_GUEST_ID_LO 0x00000000
#define HV_LINUX_GUEST_ID_HI 0xB16B00B5
#define HV_LINUX_GUEST_ID (((u64)HV_LINUX_GUEST_ID_HI << 32) | \
@@ -102,8 +97,9 @@ struct hv_input_signal_event_buffer {
};
struct hv_context {
- /* XenLinux or native Linux. If XenLinux, the hypercall and synic pages
- * has already been initialized */
+ /* We only support running on top of Hyper-V
+ * So at this point this really can only contain the Hyper-V ID
+ */
u64 GuestId;
void *HypercallPage;
diff --git a/drivers/staging/hv/NetVsc.c b/drivers/staging/hv/NetVsc.c
index 1c717f9a554e..e4bf82297504 100644
--- a/drivers/staging/hv/NetVsc.c
+++ b/drivers/staging/hv/NetVsc.c
@@ -22,6 +22,7 @@
#include <linux/mm.h>
#include <linux/delay.h>
#include <linux/io.h>
+#include <linux/slab.h>
#include "osd.h"
#include "logging.h"
#include "NetVsc.h"
diff --git a/drivers/staging/hv/NetVscApi.h b/drivers/staging/hv/NetVscApi.h
index 1ce2b74a34a7..95d7a32b12f2 100644
--- a/drivers/staging/hv/NetVscApi.h
+++ b/drivers/staging/hv/NetVscApi.h
@@ -105,8 +105,6 @@ struct netvsc_driver {
void (*OnLinkStatusChanged)(struct hv_device *dev, u32 Status);
/* Specific to this driver */
- int (*OnOpen)(struct hv_device *dev);
- int (*OnClose)(struct hv_device *dev);
int (*OnSend)(struct hv_device *dev, struct hv_netvsc_packet *packet);
void *Context;
@@ -119,5 +117,7 @@ struct netvsc_device_info {
/* Interface */
int NetVscInitialize(struct hv_driver *drv);
+int RndisFilterOnOpen(struct hv_device *Device);
+int RndisFilterOnClose(struct hv_device *Device);
#endif /* _NETVSC_API_H_ */
diff --git a/drivers/staging/hv/RingBuffer.c b/drivers/staging/hv/RingBuffer.c
index f69ae33a91e3..80b8a2c7784f 100644
--- a/drivers/staging/hv/RingBuffer.c
+++ b/drivers/staging/hv/RingBuffer.c
@@ -48,7 +48,7 @@ Description:
static inline void
GetRingBufferAvailBytes(RING_BUFFER_INFO *rbi, u32 *read, u32 *write)
{
- u32 read_loc,write_loc;
+ u32 read_loc, write_loc;
/* Capture the read/write indices before they changed */
read_loc = rbi->RingBuffer->ReadIndex;
@@ -68,7 +68,7 @@ Description:
--*/
static inline u32
-GetNextWriteLocation(RING_BUFFER_INFO* RingInfo)
+GetNextWriteLocation(RING_BUFFER_INFO *RingInfo)
{
u32 next = RingInfo->RingBuffer->WriteIndex;
@@ -87,7 +87,7 @@ Description:
--*/
static inline void
-SetNextWriteLocation(RING_BUFFER_INFO* RingInfo, u32 NextWriteLocation)
+SetNextWriteLocation(RING_BUFFER_INFO *RingInfo, u32 NextWriteLocation)
{
RingInfo->RingBuffer->WriteIndex = NextWriteLocation;
}
@@ -102,7 +102,7 @@ Description:
--*/
static inline u32
-GetNextReadLocation(RING_BUFFER_INFO* RingInfo)
+GetNextReadLocation(RING_BUFFER_INFO *RingInfo)
{
u32 next = RingInfo->RingBuffer->ReadIndex;
@@ -122,7 +122,7 @@ Description:
--*/
static inline u32
-GetNextReadLocationWithOffset(RING_BUFFER_INFO* RingInfo, u32 Offset)
+GetNextReadLocationWithOffset(RING_BUFFER_INFO *RingInfo, u32 Offset)
{
u32 next = RingInfo->RingBuffer->ReadIndex;
@@ -143,7 +143,7 @@ Description:
--*/
static inline void
-SetNextReadLocation(RING_BUFFER_INFO* RingInfo, u32 NextReadLocation)
+SetNextReadLocation(RING_BUFFER_INFO *RingInfo, u32 NextReadLocation)
{
RingInfo->RingBuffer->ReadIndex = NextReadLocation;
}
@@ -159,7 +159,7 @@ Description:
--*/
static inline void *
-GetRingBuffer(RING_BUFFER_INFO* RingInfo)
+GetRingBuffer(RING_BUFFER_INFO *RingInfo)
{
return (void *)RingInfo->RingBuffer->Buffer;
}
@@ -175,7 +175,7 @@ Description:
--*/
static inline u32
-GetRingBufferSize(RING_BUFFER_INFO* RingInfo)
+GetRingBufferSize(RING_BUFFER_INFO *RingInfo)
{
return RingInfo->RingDataSize;
}
@@ -190,9 +190,10 @@ Description:
--*/
static inline u64
-GetRingBufferIndices(RING_BUFFER_INFO* RingInfo)
+GetRingBufferIndices(RING_BUFFER_INFO *RingInfo)
{
- return ((u64)RingInfo->RingBuffer->WriteIndex << 32) || RingInfo->RingBuffer->ReadIndex;
+ return ((u64)RingInfo->RingBuffer->WriteIndex << 32)
+ || RingInfo->RingBuffer->ReadIndex;
}
@@ -210,9 +211,14 @@ void DumpRingInfo(RING_BUFFER_INFO *RingInfo, char *Prefix)
u32 bytesAvailToWrite;
u32 bytesAvailToRead;
- GetRingBufferAvailBytes(RingInfo, &bytesAvailToRead, &bytesAvailToWrite);
+ GetRingBufferAvailBytes(RingInfo,
+ &bytesAvailToRead,
+ &bytesAvailToWrite);
- DPRINT(VMBUS, DEBUG_RING_LVL, "%s <<ringinfo %p buffer %p avail write %u avail read %u read idx %u write idx %u>>",
+ DPRINT(VMBUS,
+ DEBUG_RING_LVL,
+ "%s <<ringinfo %p buffer %p avail write %u "
+ "avail read %u read idx %u write idx %u>>",
Prefix,
RingInfo,
RingInfo->RingBuffer->Buffer,
@@ -229,13 +235,13 @@ static u32
CopyToRingBuffer(
RING_BUFFER_INFO *RingInfo,
u32 StartWriteOffset,
- void * Src,
+ void *Src,
u32 SrcLen);
static u32
CopyFromRingBuffer(
RING_BUFFER_INFO *RingInfo,
- void * Dest,
+ void *Dest,
u32 DestLen,
u32 StartReadOffset);
@@ -256,15 +262,15 @@ void RingBufferGetDebugInfo(RING_BUFFER_INFO *RingInfo,
u32 bytesAvailToWrite;
u32 bytesAvailToRead;
- if (RingInfo->RingBuffer)
- {
- GetRingBufferAvailBytes(RingInfo, &bytesAvailToRead, &bytesAvailToWrite);
+ if (RingInfo->RingBuffer) {
+ GetRingBufferAvailBytes(RingInfo,
+ &bytesAvailToRead,
+ &bytesAvailToWrite);
DebugInfo->BytesAvailToRead = bytesAvailToRead;
DebugInfo->BytesAvailToWrite = bytesAvailToWrite;
DebugInfo->CurrentReadIndex = RingInfo->RingBuffer->ReadIndex;
DebugInfo->CurrentWriteIndex = RingInfo->RingBuffer->WriteIndex;
-
DebugInfo->CurrentInterruptMask = RingInfo->RingBuffer->InterruptMask;
}
}
@@ -299,7 +305,7 @@ int RingBufferInit(RING_BUFFER_INFO *RingInfo, void *Buffer, u32 BufferLen)
memset(RingInfo, 0, sizeof(RING_BUFFER_INFO));
- RingInfo->RingBuffer = (RING_BUFFER*)Buffer;
+ RingInfo->RingBuffer = (RING_BUFFER *)Buffer;
RingInfo->RingBuffer->ReadIndex = RingInfo->RingBuffer->WriteIndex = 0;
RingInfo->RingSize = BufferLen;
@@ -319,7 +325,7 @@ Description:
Cleanup the ring buffer
--*/
-void RingBufferCleanup(RING_BUFFER_INFO* RingInfo)
+void RingBufferCleanup(RING_BUFFER_INFO *RingInfo)
{
}
@@ -335,14 +341,14 @@ Description:
int RingBufferWrite(RING_BUFFER_INFO *OutRingInfo,
struct scatterlist *sglist, u32 sgcount)
{
- int i=0;
+ int i = 0;
u32 byteAvailToWrite;
u32 byteAvailToRead;
- u32 totalBytesToWrite=0;
+ u32 totalBytesToWrite = 0;
struct scatterlist *sg;
volatile u32 nextWriteLocation;
- u64 prevIndices=0;
+ u64 prevIndices = 0;
unsigned long flags;
DPRINT_ENTER(VMBUS);
@@ -356,17 +362,23 @@ int RingBufferWrite(RING_BUFFER_INFO *OutRingInfo,
spin_lock_irqsave(&OutRingInfo->ring_lock, flags);
- GetRingBufferAvailBytes(OutRingInfo, &byteAvailToRead, &byteAvailToWrite);
+ GetRingBufferAvailBytes(OutRingInfo,
+ &byteAvailToRead,
+ &byteAvailToWrite);
DPRINT_DBG(VMBUS, "Writing %u bytes...", totalBytesToWrite);
/* DumpRingInfo(OutRingInfo, "BEFORE "); */
- /* If there is only room for the packet, assume it is full. Otherwise, the next time around, we think the ring buffer */
+ /* If there is only room for the packet, assume it is full. */
+ /* Otherwise, the next time around, we think the ring buffer */
/* is empty since the read index == write index */
- if (byteAvailToWrite <= totalBytesToWrite)
- {
- DPRINT_DBG(VMBUS, "No more space left on outbound ring buffer (needed %u, avail %u)", totalBytesToWrite, byteAvailToWrite);
+ if (byteAvailToWrite <= totalBytesToWrite) {
+ DPRINT_DBG(VMBUS,
+ "No more space left on outbound ring buffer "
+ "(needed %u, avail %u)",
+ totalBytesToWrite,
+ byteAvailToWrite);
spin_unlock_irqrestore(&OutRingInfo->ring_lock, flags);
@@ -423,17 +435,22 @@ int RingBufferPeek(RING_BUFFER_INFO *InRingInfo, void *Buffer, u32 BufferLen)
{
u32 bytesAvailToWrite;
u32 bytesAvailToRead;
- u32 nextReadLocation=0;
+ u32 nextReadLocation = 0;
unsigned long flags;
spin_lock_irqsave(&InRingInfo->ring_lock, flags);
- GetRingBufferAvailBytes(InRingInfo, &bytesAvailToRead, &bytesAvailToWrite);
+ GetRingBufferAvailBytes(InRingInfo,
+ &bytesAvailToRead,
+ &bytesAvailToWrite);
/* Make sure there is something to read */
- if (bytesAvailToRead < BufferLen )
- {
- /* DPRINT_DBG(VMBUS, "got callback but not enough to read <avail to read %d read size %d>!!", bytesAvailToRead, BufferLen); */
+ if (bytesAvailToRead < BufferLen) {
+ /* DPRINT_DBG(VMBUS,
+ "got callback but not enough to read "
+ "<avail to read %d read size %d>!!",
+ bytesAvailToRead,
+ BufferLen); */
spin_unlock_irqrestore(&InRingInfo->ring_lock, flags);
@@ -444,9 +461,9 @@ int RingBufferPeek(RING_BUFFER_INFO *InRingInfo, void *Buffer, u32 BufferLen)
nextReadLocation = GetNextReadLocation(InRingInfo);
nextReadLocation = CopyFromRingBuffer(InRingInfo,
- Buffer,
- BufferLen,
- nextReadLocation);
+ Buffer,
+ BufferLen,
+ nextReadLocation);
spin_unlock_irqrestore(&InRingInfo->ring_lock, flags);
@@ -468,24 +485,29 @@ int RingBufferRead(RING_BUFFER_INFO *InRingInfo, void *Buffer,
{
u32 bytesAvailToWrite;
u32 bytesAvailToRead;
- u32 nextReadLocation=0;
- u64 prevIndices=0;
+ u32 nextReadLocation = 0;
+ u64 prevIndices = 0;
unsigned long flags;
ASSERT(BufferLen > 0);
spin_lock_irqsave(&InRingInfo->ring_lock, flags);
- GetRingBufferAvailBytes(InRingInfo, &bytesAvailToRead, &bytesAvailToWrite);
+ GetRingBufferAvailBytes(InRingInfo,
+ &bytesAvailToRead,
+ &bytesAvailToWrite);
DPRINT_DBG(VMBUS, "Reading %u bytes...", BufferLen);
/* DumpRingInfo(InRingInfo, "BEFORE "); */
/* Make sure there is something to read */
- if (bytesAvailToRead < BufferLen )
- {
- DPRINT_DBG(VMBUS, "got callback but not enough to read <avail to read %d read size %d>!!", bytesAvailToRead, BufferLen);
+ if (bytesAvailToRead < BufferLen) {
+ DPRINT_DBG(VMBUS,
+ "got callback but not enough to read "
+ "<avail to read %d read size %d>!!",
+ bytesAvailToRead,
+ BufferLen);
spin_unlock_irqrestore(&InRingInfo->ring_lock, flags);
@@ -495,17 +517,18 @@ int RingBufferRead(RING_BUFFER_INFO *InRingInfo, void *Buffer,
nextReadLocation = GetNextReadLocationWithOffset(InRingInfo, Offset);
nextReadLocation = CopyFromRingBuffer(InRingInfo,
- Buffer,
- BufferLen,
- nextReadLocation);
+ Buffer,
+ BufferLen,
+ nextReadLocation);
nextReadLocation = CopyFromRingBuffer(InRingInfo,
- &prevIndices,
- sizeof(u64),
- nextReadLocation);
+ &prevIndices,
+ sizeof(u64),
+ nextReadLocation);
/* Make sure all reads are done before we update the read index since */
- /* the writer may start writing to the read area once the read index is updated */
+ /* the writer may start writing to the read area once the read index */
+ /*is updated */
mb();
/* Update the read index */
@@ -533,25 +556,22 @@ static u32
CopyToRingBuffer(
RING_BUFFER_INFO *RingInfo,
u32 StartWriteOffset,
- void * Src,
+ void *Src,
u32 SrcLen)
{
- void * ringBuffer=GetRingBuffer(RingInfo);
- u32 ringBufferSize=GetRingBufferSize(RingInfo);
+ void *ringBuffer = GetRingBuffer(RingInfo);
+ u32 ringBufferSize = GetRingBufferSize(RingInfo);
u32 fragLen;
- if (SrcLen > ringBufferSize - StartWriteOffset) /* wrap-around detected! */
- {
+ /* wrap-around detected! */
+ if (SrcLen > ringBufferSize - StartWriteOffset) {
DPRINT_DBG(VMBUS, "wrap-around detected!");
fragLen = ringBufferSize - StartWriteOffset;
memcpy(ringBuffer + StartWriteOffset, Src, fragLen);
memcpy(ringBuffer, Src + fragLen, SrcLen - fragLen);
- }
- else
- {
+ } else
memcpy(ringBuffer + StartWriteOffset, Src, SrcLen);
- }
StartWriteOffset += SrcLen;
StartWriteOffset %= ringBufferSize;
@@ -573,28 +593,27 @@ Description:
static u32
CopyFromRingBuffer(
RING_BUFFER_INFO *RingInfo,
- void * Dest,
+ void *Dest,
u32 DestLen,
u32 StartReadOffset)
{
- void * ringBuffer=GetRingBuffer(RingInfo);
- u32 ringBufferSize=GetRingBufferSize(RingInfo);
+ void *ringBuffer = GetRingBuffer(RingInfo);
+ u32 ringBufferSize = GetRingBufferSize(RingInfo);
u32 fragLen;
- if (DestLen > ringBufferSize - StartReadOffset) /* wrap-around detected at the src */
- {
+ /* wrap-around detected at the src */
+ if (DestLen > ringBufferSize - StartReadOffset) {
DPRINT_DBG(VMBUS, "src wrap-around detected!");
fragLen = ringBufferSize - StartReadOffset;
memcpy(Dest, ringBuffer + StartReadOffset, fragLen);
memcpy(Dest + fragLen, ringBuffer, DestLen - fragLen);
- }
- else
- {
+ } else
+
memcpy(Dest, ringBuffer + StartReadOffset, DestLen);
- }
+
StartReadOffset += DestLen;
StartReadOffset %= ringBufferSize;
diff --git a/drivers/staging/hv/RndisFilter.c b/drivers/staging/hv/RndisFilter.c
index 26d79975387c..cd2930de2176 100644
--- a/drivers/staging/hv/RndisFilter.c
+++ b/drivers/staging/hv/RndisFilter.c
@@ -20,6 +20,7 @@
*/
#include <linux/kernel.h>
#include <linux/highmem.h>
+#include <linux/slab.h>
#include <linux/io.h>
#include "osd.h"
#include "logging.h"
@@ -85,10 +86,6 @@ static int RndisFilterOnDeviceRemove(struct hv_device *Device);
static void RndisFilterOnCleanup(struct hv_driver *Driver);
-static int RndisFilterOnOpen(struct hv_device *Device);
-
-static int RndisFilterOnClose(struct hv_device *Device);
-
static int RndisFilterOnSend(struct hv_device *Device,
struct hv_netvsc_packet *Packet);
@@ -654,8 +651,6 @@ int RndisFilterInit(struct netvsc_driver *Driver)
Driver->Base.OnDeviceRemove = RndisFilterOnDeviceRemove;
Driver->Base.OnCleanup = RndisFilterOnCleanup;
Driver->OnSend = RndisFilterOnSend;
- Driver->OnOpen = RndisFilterOnOpen;
- Driver->OnClose = RndisFilterOnClose;
/* Driver->QueryLinkStatus = RndisFilterQueryDeviceLinkStatus; */
Driver->OnReceiveCallback = RndisFilterOnReceive;
@@ -888,7 +883,7 @@ static void RndisFilterOnCleanup(struct hv_driver *Driver)
DPRINT_EXIT(NETVSC);
}
-static int RndisFilterOnOpen(struct hv_device *Device)
+int RndisFilterOnOpen(struct hv_device *Device)
{
int ret;
struct netvsc_device *netDevice = Device->Extension;
@@ -903,7 +898,7 @@ static int RndisFilterOnOpen(struct hv_device *Device)
return ret;
}
-static int RndisFilterOnClose(struct hv_device *Device)
+int RndisFilterOnClose(struct hv_device *Device)
{
int ret;
struct netvsc_device *netDevice = Device->Extension;
diff --git a/drivers/staging/hv/StorVsc.c b/drivers/staging/hv/StorVsc.c
index 2f7c425896f7..e426a23ca537 100644
--- a/drivers/staging/hv/StorVsc.c
+++ b/drivers/staging/hv/StorVsc.c
@@ -20,6 +20,7 @@
*/
#include <linux/kernel.h>
#include <linux/string.h>
+#include <linux/slab.h>
#include <linux/mm.h>
#include <linux/delay.h>
#include "osd.h"
@@ -625,7 +626,7 @@ static int StorVscOnDeviceRemove(struct hv_device *Device)
return 0;
}
-static int StorVscOnHostReset(struct hv_device *Device)
+int StorVscOnHostReset(struct hv_device *Device)
{
struct storvsc_device *storDevice;
struct storvsc_request_extension *request;
@@ -842,7 +843,6 @@ int StorVscInitialize(struct hv_driver *Driver)
storDriver->Base.OnCleanup = StorVscOnCleanup;
storDriver->OnIORequest = StorVscOnIORequest;
- storDriver->OnHostReset = StorVscOnHostReset;
DPRINT_EXIT(STORVSC);
diff --git a/drivers/staging/hv/StorVscApi.h b/drivers/staging/hv/StorVscApi.h
index 69c14066c479..126a8588edb1 100644
--- a/drivers/staging/hv/StorVscApi.h
+++ b/drivers/staging/hv/StorVscApi.h
@@ -91,13 +91,9 @@ struct storvsc_driver_object {
/* Maximum # of requests in flight per channel/device */
u32 MaxOutstandingRequestsPerChannel;
- /* Set by the caller to allow us to re-enumerate the bus on the host */
- void (*OnHostRescan)(struct hv_device *Device);
-
/* Specific to this driver */
int (*OnIORequest)(struct hv_device *Device,
struct hv_storvsc_request *Request);
- int (*OnHostReset)(struct hv_device *Device);
};
struct storvsc_device_info {
@@ -108,6 +104,7 @@ struct storvsc_device_info {
/* Interface */
int StorVscInitialize(struct hv_driver *driver);
+int StorVscOnHostReset(struct hv_device *Device);
int BlkVscInitialize(struct hv_driver *driver);
#endif /* _STORVSC_API_H_ */
diff --git a/drivers/staging/hv/VersionInfo.h b/drivers/staging/hv/VersionInfo.h
index 9c3641d99ed8..10d7b19a485f 100644
--- a/drivers/staging/hv/VersionInfo.h
+++ b/drivers/staging/hv/VersionInfo.h
@@ -24,8 +24,24 @@
#ifndef __HV_VERSION_INFO
#define __HV_VERSION_INFO
-static const char VersionDate[] = __DATE__;
-static const char VersionTime[] = __TIME__;
-static const char VersionDesc[] = "Version 2.0";
+/*
+ * We use the same version numbering for all Hyper-V modules.
+ *
+ * Definition of versioning is as follows;
+ *
+ * Major Number Changes for these scenarios;
+ * 1. When a new version of Windows Hyper-V
+ * is released.
+ * 2. A Major change has occurred in the
+ * Linux IC's.
+ * (For example the merge for the first time
+ * into the kernel) Every time the Major Number
+ * changes, the Revision number is reset to 0.
+ * Minor Number Changes when new functionality is added
+ * to the Linux IC's that is not a bug fix.
+ *
+ */
+#define HV_DRV_VERSION "3.0"
+
#endif
diff --git a/drivers/staging/hv/Vmbus.c b/drivers/staging/hv/Vmbus.c
index 35a023e9f9d1..2f84bf7c0a9f 100644
--- a/drivers/staging/hv/Vmbus.c
+++ b/drivers/staging/hv/Vmbus.c
@@ -21,6 +21,7 @@
*/
#include <linux/kernel.h>
#include <linux/mm.h>
+#include <linux/slab.h>
#include "osd.h"
#include "logging.h"
#include "VersionInfo.h"
@@ -273,10 +274,8 @@ int VmbusInitialize(struct hv_driver *drv)
DPRINT_ENTER(VMBUS);
- DPRINT_INFO(VMBUS, "+++++++ Build Date=%s %s +++++++",
- VersionDate, VersionTime);
- DPRINT_INFO(VMBUS, "+++++++ Build Description=%s +++++++",
- VersionDesc);
+ DPRINT_INFO(VMBUS, "+++++++ HV Driver version = %s +++++++",
+ HV_DRV_VERSION);
DPRINT_INFO(VMBUS, "+++++++ Vmbus supported version = %d +++++++",
VMBUS_REVISION_NUMBER);
DPRINT_INFO(VMBUS, "+++++++ Vmbus using SINT %d +++++++",
diff --git a/drivers/staging/hv/blkvsc_drv.c b/drivers/staging/hv/blkvsc_drv.c
index 45d908114d11..8f1fda3256ad 100644
--- a/drivers/staging/hv/blkvsc_drv.c
+++ b/drivers/staging/hv/blkvsc_drv.c
@@ -25,12 +25,14 @@
#include <linux/major.h>
#include <linux/delay.h>
#include <linux/hdreg.h>
+#include <linux/slab.h>
#include <scsi/scsi.h>
#include <scsi/scsi_cmnd.h>
#include <scsi/scsi_eh.h>
#include <scsi/scsi_dbg.h>
#include "osd.h"
#include "logging.h"
+#include "VersionInfo.h"
#include "vmbus.h"
#include "StorVscApi.h"
@@ -92,7 +94,7 @@ struct blkvsc_request {
/* Per device structure */
struct block_device_context {
/* point back to our device context */
- struct device_context *device_ctx;
+ struct vm_device *device_ctx;
struct kmem_cache *request_pool;
spinlock_t lock;
struct gendisk *gd;
@@ -254,7 +256,7 @@ static int blkvsc_probe(struct device *device)
(struct blkvsc_driver_context *)driver_ctx;
struct storvsc_driver_object *storvsc_drv_obj =
&blkvsc_drv_ctx->drv_obj;
- struct device_context *device_ctx = device_to_device_context(device);
+ struct vm_device *device_ctx = device_to_vm_device(device);
struct hv_device *device_obj = &device_ctx->device_obj;
struct block_device_context *blkdev = NULL;
@@ -742,7 +744,7 @@ static int blkvsc_remove(struct device *device)
(struct blkvsc_driver_context *)driver_ctx;
struct storvsc_driver_object *storvsc_drv_obj =
&blkvsc_drv_ctx->drv_obj;
- struct device_context *device_ctx = device_to_device_context(device);
+ struct vm_device *device_ctx = device_to_vm_device(device);
struct hv_device *device_obj = &device_ctx->device_obj;
struct block_device_context *blkdev = dev_get_drvdata(device);
unsigned long flags;
@@ -862,7 +864,7 @@ static int blkvsc_submit_request(struct blkvsc_request *blkvsc_req,
void (*request_completion)(struct hv_storvsc_request *))
{
struct block_device_context *blkdev = blkvsc_req->dev;
- struct device_context *device_ctx = blkdev->device_ctx;
+ struct vm_device *device_ctx = blkdev->device_ctx;
struct driver_context *driver_ctx =
driver_to_driver_context(device_ctx->device.driver);
struct blkvsc_driver_context *blkvsc_drv_ctx =
@@ -1504,6 +1506,7 @@ static void __exit blkvsc_exit(void)
}
MODULE_LICENSE("GPL");
+MODULE_VERSION(HV_DRV_VERSION);
module_param(blkvsc_ringbuffer_size, int, S_IRUGO);
module_init(blkvsc_init);
module_exit(blkvsc_exit);
diff --git a/drivers/staging/hv/netvsc_drv.c b/drivers/staging/hv/netvsc_drv.c
index 0d7459e2d036..2ccb6b93fe47 100644
--- a/drivers/staging/hv/netvsc_drv.c
+++ b/drivers/staging/hv/netvsc_drv.c
@@ -29,20 +29,20 @@
#include <linux/etherdevice.h>
#include <linux/skbuff.h>
#include <linux/in.h>
+#include <linux/slab.h>
#include <net/arp.h>
#include <net/route.h>
#include <net/sock.h>
#include <net/pkt_sched.h>
#include "osd.h"
#include "logging.h"
+#include "VersionInfo.h"
#include "vmbus.h"
#include "NetVscApi.h"
-MODULE_LICENSE("GPL");
-
struct net_device_context {
/* point back to our device context */
- struct device_context *device_ctx;
+ struct vm_device *device_ctx;
struct net_device_stats stats;
};
@@ -72,11 +72,6 @@ static void netvsc_set_multicast_list(struct net_device *net)
static int netvsc_open(struct net_device *net)
{
struct net_device_context *net_device_ctx = netdev_priv(net);
- struct driver_context *driver_ctx =
- driver_to_driver_context(net_device_ctx->device_ctx->device.driver);
- struct netvsc_driver_context *net_drv_ctx =
- (struct netvsc_driver_context *)driver_ctx;
- struct netvsc_driver *net_drv_obj = &net_drv_ctx->drv_obj;
struct hv_device *device_obj = &net_device_ctx->device_ctx->device_obj;
int ret = 0;
@@ -87,7 +82,7 @@ static int netvsc_open(struct net_device *net)
sizeof(struct net_device_stats));
/* Open up the device */
- ret = net_drv_obj->OnOpen(device_obj);
+ ret = RndisFilterOnOpen(device_obj);
if (ret != 0) {
DPRINT_ERR(NETVSC_DRV,
"unable to open device (ret %d).", ret);
@@ -106,11 +101,6 @@ static int netvsc_open(struct net_device *net)
static int netvsc_close(struct net_device *net)
{
struct net_device_context *net_device_ctx = netdev_priv(net);
- struct driver_context *driver_ctx =
- driver_to_driver_context(net_device_ctx->device_ctx->device.driver);
- struct netvsc_driver_context *net_drv_ctx =
- (struct netvsc_driver_context *)driver_ctx;
- struct netvsc_driver *net_drv_obj = &net_drv_ctx->drv_obj;
struct hv_device *device_obj = &net_device_ctx->device_ctx->device_obj;
int ret;
@@ -118,7 +108,7 @@ static int netvsc_close(struct net_device *net)
netif_stop_queue(net);
- ret = net_drv_obj->OnClose(device_obj);
+ ret = RndisFilterOnClose(device_obj);
if (ret != 0)
DPRINT_ERR(NETVSC_DRV, "unable to close device (ret %d).", ret);
@@ -282,7 +272,7 @@ retry_send:
static void netvsc_linkstatus_callback(struct hv_device *device_obj,
unsigned int status)
{
- struct device_context *device_ctx = to_device_context(device_obj);
+ struct vm_device *device_ctx = to_vm_device(device_obj);
struct net_device *net = dev_get_drvdata(&device_ctx->device);
DPRINT_ENTER(NETVSC_DRV);
@@ -309,7 +299,7 @@ static void netvsc_linkstatus_callback(struct hv_device *device_obj,
static int netvsc_recv_callback(struct hv_device *device_obj,
struct hv_netvsc_packet *packet)
{
- struct device_context *device_ctx = to_device_context(device_obj);
+ struct vm_device *device_ctx = to_vm_device(device_obj);
struct net_device *net = dev_get_drvdata(&device_ctx->device);
struct net_device_context *net_device_ctx;
struct sk_buff *skb;
@@ -401,7 +391,7 @@ static int netvsc_probe(struct device *device)
struct netvsc_driver_context *net_drv_ctx =
(struct netvsc_driver_context *)driver_ctx;
struct netvsc_driver *net_drv_obj = &net_drv_ctx->drv_obj;
- struct device_context *device_ctx = device_to_device_context(device);
+ struct vm_device *device_ctx = device_to_vm_device(device);
struct hv_device *device_obj = &device_ctx->device_obj;
struct net_device *net = NULL;
struct net_device_context *net_device_ctx;
@@ -473,7 +463,7 @@ static int netvsc_remove(struct device *device)
struct netvsc_driver_context *net_drv_ctx =
(struct netvsc_driver_context *)driver_ctx;
struct netvsc_driver *net_drv_obj = &net_drv_ctx->drv_obj;
- struct device_context *device_ctx = device_to_device_context(device);
+ struct vm_device *device_ctx = device_to_vm_device(device);
struct net_device *net = dev_get_drvdata(&device_ctx->device);
struct hv_device *device_obj = &device_ctx->device_obj;
int ret;
@@ -613,6 +603,8 @@ static void __exit netvsc_exit(void)
DPRINT_EXIT(NETVSC_DRV);
}
+MODULE_LICENSE("GPL");
+MODULE_VERSION(HV_DRV_VERSION);
module_param(netvsc_ringbuffer_size, int, S_IRUGO);
module_init(netvsc_init);
diff --git a/drivers/staging/hv/osd.c b/drivers/staging/hv/osd.c
index 3a4793a0fd05..9aea31067295 100644
--- a/drivers/staging/hv/osd.c
+++ b/drivers/staging/hv/osd.c
@@ -40,6 +40,7 @@
#include <linux/time.h>
#include <linux/io.h>
#include <linux/bitops.h>
+#include <linux/slab.h>
#include "osd.h"
struct osd_callback_struct {
diff --git a/drivers/staging/hv/storvsc_drv.c b/drivers/staging/hv/storvsc_drv.c
index d49dc21d4cb4..8a58272b8039 100644
--- a/drivers/staging/hv/storvsc_drv.c
+++ b/drivers/staging/hv/storvsc_drv.c
@@ -19,6 +19,7 @@
* Hank Janssen <hjanssen@microsoft.com>
*/
#include <linux/init.h>
+#include <linux/slab.h>
#include <linux/module.h>
#include <linux/device.h>
#include <linux/blkdev.h>
@@ -32,6 +33,7 @@
#include <scsi/scsi_dbg.h>
#include "osd.h"
#include "logging.h"
+#include "VersionInfo.h"
#include "vmbus.h"
#include "StorVscApi.h"
@@ -39,10 +41,8 @@
struct host_device_context {
/* must be 1st field
* FIXME this is a bug */
- struct work_struct host_rescan_work;
-
/* point back to our device context */
- struct device_context *device_ctx;
+ struct vm_device *device_ctx;
struct kmem_cache *request_pool;
unsigned int port;
unsigned char path;
@@ -77,8 +77,6 @@ static int storvsc_queuecommand(struct scsi_cmnd *scmnd,
static int storvsc_device_alloc(struct scsi_device *);
static int storvsc_device_configure(struct scsi_device *);
static int storvsc_host_reset_handler(struct scsi_cmnd *scmnd);
-static void storvsc_host_rescan_callback(struct work_struct *work);
-static void storvsc_host_rescan(struct hv_device *device_obj);
static int storvsc_remove(struct device *dev);
static struct scatterlist *create_bounce_buffer(struct scatterlist *sgl,
@@ -94,8 +92,6 @@ static unsigned int copy_to_bounce_buffer(struct scatterlist *orig_sgl,
struct scatterlist *bounce_sgl,
unsigned int orig_sgl_count);
-static int storvsc_report_luns(struct scsi_device *sdev, unsigned int luns[],
- unsigned int *lun_count);
static int storvsc_get_chs(struct scsi_device *sdev, struct block_device *bdev,
sector_t capacity, int *info);
@@ -148,7 +144,6 @@ static int storvsc_drv_init(int (*drv_init)(struct hv_driver *drv))
vmbus_get_interface(&storvsc_drv_obj->Base.VmbusChannelInterface);
storvsc_drv_obj->RingBufferSize = storvsc_ringbuffer_size;
- storvsc_drv_obj->OnHostRescan = storvsc_host_rescan;
/* Callback to client driver to complete the initialization */
drv_init(&storvsc_drv_obj->Base);
@@ -240,7 +235,7 @@ static int storvsc_probe(struct device *device)
(struct storvsc_driver_context *)driver_ctx;
struct storvsc_driver_object *storvsc_drv_obj =
&storvsc_drv_ctx->drv_obj;
- struct device_context *device_ctx = device_to_device_context(device);
+ struct vm_device *device_ctx = device_to_vm_device(device);
struct hv_device *device_obj = &device_ctx->device_obj;
struct Scsi_Host *host;
struct host_device_context *host_device_ctx;
@@ -266,9 +261,6 @@ static int storvsc_probe(struct device *device)
host_device_ctx->port = host->host_no;
host_device_ctx->device_ctx = device_ctx;
- INIT_WORK(&host_device_ctx->host_rescan_work,
- storvsc_host_rescan_callback);
-
host_device_ctx->request_pool =
kmem_cache_create(dev_name(&device_ctx->device),
sizeof(struct storvsc_cmd_request) +
@@ -339,7 +331,7 @@ static int storvsc_remove(struct device *device)
(struct storvsc_driver_context *)driver_ctx;
struct storvsc_driver_object *storvsc_drv_obj =
&storvsc_drv_ctx->drv_obj;
- struct device_context *device_ctx = device_to_device_context(device);
+ struct vm_device *device_ctx = device_to_vm_device(device);
struct hv_device *device_obj = &device_ctx->device_obj;
struct Scsi_Host *host = dev_get_drvdata(device);
struct host_device_context *host_device_ctx =
@@ -640,7 +632,7 @@ static int storvsc_queuecommand(struct scsi_cmnd *scmnd,
int ret;
struct host_device_context *host_device_ctx =
(struct host_device_context *)scmnd->device->host->hostdata;
- struct device_context *device_ctx = host_device_ctx->device_ctx;
+ struct vm_device *device_ctx = host_device_ctx->device_ctx;
struct driver_context *driver_ctx =
driver_to_driver_context(device_ctx->device.driver);
struct storvsc_driver_context *storvsc_drv_ctx =
@@ -879,14 +871,7 @@ static int storvsc_host_reset_handler(struct scsi_cmnd *scmnd)
int ret;
struct host_device_context *host_device_ctx =
(struct host_device_context *)scmnd->device->host->hostdata;
- struct device_context *device_ctx = host_device_ctx->device_ctx;
- struct driver_context *driver_ctx =
- driver_to_driver_context(device_ctx->device.driver);
- struct storvsc_driver_context *storvsc_drv_ctx =
- (struct storvsc_driver_context *)driver_ctx;
-
- struct storvsc_driver_object *storvsc_drv_obj =
- &storvsc_drv_ctx->drv_obj;
+ struct vm_device *device_ctx = host_device_ctx->device_ctx;
DPRINT_ENTER(STORVSC_DRV);
@@ -894,8 +879,7 @@ static int storvsc_host_reset_handler(struct scsi_cmnd *scmnd)
scmnd->device, &device_ctx->device_obj);
/* Invokes the vsc to reset the host/bus */
- ASSERT(storvsc_drv_obj->OnHostReset);
- ret = storvsc_drv_obj->OnHostReset(&device_ctx->device_obj);
+ ret = StorVscOnHostReset(&device_ctx->device_obj);
if (ret != 0) {
DPRINT_EXIT(STORVSC_DRV);
return ret;
@@ -909,201 +893,6 @@ static int storvsc_host_reset_handler(struct scsi_cmnd *scmnd)
return ret;
}
-/**
- * storvsc_host_rescan - Rescan the scsi HBA
- */
-static void storvsc_host_rescan_callback(struct work_struct *work)
-{
- struct hv_device *device_obj =
- &((struct host_device_context *)work)->device_ctx->device_obj;
- struct device_context *device_ctx = to_device_context(device_obj);
- struct Scsi_Host *host = dev_get_drvdata(&device_ctx->device);
- struct scsi_device *sdev;
- struct host_device_context *host_device_ctx;
- struct scsi_device **sdevs_remove_list;
- unsigned int sdevs_count = 0;
- unsigned int found;
- unsigned int i;
- unsigned int lun_count = 0;
- unsigned int *lun_list;
-
- DPRINT_ENTER(STORVSC_DRV);
-
- host_device_ctx = (struct host_device_context *)host->hostdata;
- lun_list = kcalloc(STORVSC_MAX_LUNS_PER_TARGET, sizeof(unsigned int),
- GFP_ATOMIC);
- if (!lun_list) {
- DPRINT_ERR(STORVSC_DRV, "unable to allocate lun list");
- return;
- }
-
- sdevs_remove_list = kcalloc(STORVSC_MAX_LUNS_PER_TARGET,
- sizeof(void *), GFP_ATOMIC);
- if (!sdevs_remove_list) {
- kfree(lun_list);
- DPRINT_ERR(STORVSC_DRV, "unable to allocate lun remove list");
- return;
- }
-
- DPRINT_INFO(STORVSC_DRV, "rescanning host for new scsi devices...");
-
- /* Rescan for new device */
- scsi_scan_target(&host->shost_gendev, host_device_ctx->path,
- host_device_ctx->target, SCAN_WILD_CARD, 1);
-
- DPRINT_INFO(STORVSC_DRV, "rescanning host for removed scsi device...");
-
- /* Use the 1st device to send the report luns cmd */
- shost_for_each_device(sdev, host) {
- lun_count = STORVSC_MAX_LUNS_PER_TARGET;
- storvsc_report_luns(sdev, lun_list, &lun_count);
-
- DPRINT_INFO(STORVSC_DRV,
- "report luns on scsi device (%p) found %u luns ",
- sdev, lun_count);
- DPRINT_INFO(STORVSC_DRV,
- "existing luns on scsi device (%p) host (%d)",
- sdev, host->host_no);
-
- scsi_device_put(sdev);
- break;
- }
-
- for (i = 0; i < lun_count; i++)
- DPRINT_INFO(STORVSC_DRV, "%d) lun %u", i, lun_list[i]);
-
- /* Rescan for devices that may have been removed.
- * We do not have to worry that new devices may have been added since
- * this callback is serialized by the workqueue ie add/remove are done
- * here.
- */
- shost_for_each_device(sdev, host) {
- /* See if this device is still here */
- found = 0;
- for (i = 0; i < lun_count; i++) {
- if (sdev->lun == lun_list[i]) {
- found = 1;
- break;
- }
- }
- if (!found) {
- DPRINT_INFO(STORVSC_DRV, "lun (%u) does not exists",
- sdev->lun);
- sdevs_remove_list[sdevs_count++] = sdev;
- }
- }
-
- /* Now remove the devices */
- for (i = 0; i < sdevs_count; i++) {
- DPRINT_INFO(STORVSC_DRV,
- "removing scsi device (%p) lun (%u)...",
- sdevs_remove_list[i], sdevs_remove_list[i]->lun);
-
- /* make sure it is not removed from underneath us */
- if (!scsi_device_get(sdevs_remove_list[i])) {
- scsi_remove_device(sdevs_remove_list[i]);
- scsi_device_put(sdevs_remove_list[i]);
- }
- }
-
- DPRINT_INFO(STORVSC_DRV, "rescan completed on dev obj (%p) "
- "target (%u) bus (%u)", device_obj,
- host_device_ctx->target, host_device_ctx->path);
-
- kfree(lun_list);
- kfree(sdevs_remove_list);
-
- DPRINT_EXIT(STORVSC_DRV);
-}
-
-static int storvsc_report_luns(struct scsi_device *sdev, unsigned int luns[],
- unsigned int *lun_count)
-{
- int i, j;
- unsigned int lun = 0;
- unsigned int num_luns;
- int result;
- unsigned char *data;
- struct scsi_sense_hdr sshdr;
- unsigned char cmd[16] = {0};
- /* Add 1 to cover the report_lun header */
- unsigned int report_len = 8 * (STORVSC_MAX_LUNS_PER_TARGET+1);
- unsigned long long *report_luns;
- const unsigned int in_lun_count = *lun_count;
-
- *lun_count = 0;
-
- report_luns = kzalloc(report_len, GFP_ATOMIC);
- if (!report_luns)
- return -ENOMEM;
-
- cmd[0] = REPORT_LUNS;
-
- /* cmd length */
- *(unsigned int *)&cmd[6] = cpu_to_be32(report_len);
-
- result = scsi_execute_req(sdev, cmd, DMA_FROM_DEVICE,
- (unsigned char *)report_luns, report_len,
- &sshdr, 30 * HZ, 3, NULL);
- if (result != 0) {
- kfree(report_luns);
- return -EBUSY;
- }
-
- /* get the length from the first four bytes */
- report_len = be32_to_cpu(*(unsigned int *)&report_luns[0]);
-
- num_luns = (report_len / sizeof(unsigned long long));
- if (num_luns > in_lun_count) {
- kfree(report_luns);
- return -EINVAL;
- }
-
- *lun_count = num_luns;
-
- DPRINT_DBG(STORVSC_DRV,
- "report luns on scsi device (%p) found %u luns ",
- sdev, num_luns);
-
- /* lun id starts at 1 */
- for (i = 1; i < num_luns + 1; i++) {
- lun = 0;
- data = (unsigned char *)&report_luns[i];
- for (j = 0; j < sizeof(lun); j += 2) {
- lun = lun | (((data[j] << 8) | data[j + 1]) <<
- (j * 8));
- }
-
- luns[i-1] = lun;
- }
-
- kfree(report_luns);
- return 0;
-}
-
-static void storvsc_host_rescan(struct hv_device *device_obj)
-{
- struct device_context *device_ctx = to_device_context(device_obj);
- struct Scsi_Host *host = dev_get_drvdata(&device_ctx->device);
- struct host_device_context *host_device_ctx;
-
- DPRINT_ENTER(STORVSC_DRV);
-
- host_device_ctx = (struct host_device_context *)host->hostdata;
-
- DPRINT_INFO(STORVSC_DRV, "initiating rescan on dev obj (%p) "
- "target (%u) bus (%u)...", device_obj,
- host_device_ctx->target, host_device_ctx->path);
-
- /*
- * We need to queue this since the scanning may block and the caller
- * may be in an intr context
- */
- /* scsi_queue_work(host, &host_device_ctx->host_rescan_work); */
- schedule_work(&host_device_ctx->host_rescan_work);
- DPRINT_EXIT(STORVSC_DRV);
-}
-
static int storvsc_get_chs(struct scsi_device *sdev, struct block_device * bdev,
sector_t capacity, int *info)
{
@@ -1203,6 +992,7 @@ static void __exit storvsc_exit(void)
}
MODULE_LICENSE("GPL");
+MODULE_VERSION(HV_DRV_VERSION);
module_param(storvsc_ringbuffer_size, int, S_IRUGO);
module_init(storvsc_init);
module_exit(storvsc_exit);
diff --git a/drivers/staging/hv/vmbus.h b/drivers/staging/hv/vmbus.h
index ae0a896eb392..6404b8424bef 100644
--- a/drivers/staging/hv/vmbus.h
+++ b/drivers/staging/hv/vmbus.h
@@ -43,23 +43,23 @@ struct driver_context {
void (*shutdown)(struct device *);
};
-struct device_context {
+struct vm_device {
struct work_struct probe_failed_work_item;
struct hv_guid class_id;
struct hv_guid device_id;
int probe_error;
- struct device device;
struct hv_device device_obj;
+ struct device device;
};
-static inline struct device_context *to_device_context(struct hv_device *d)
+static inline struct vm_device *to_vm_device(struct hv_device *d)
{
- return container_of(d, struct device_context, device_obj);
+ return container_of(d, struct vm_device, device_obj);
}
-static inline struct device_context *device_to_device_context(struct device *d)
+static inline struct vm_device *device_to_vm_device(struct device *d)
{
- return container_of(d, struct device_context, device);
+ return container_of(d, struct vm_device, device);
}
static inline struct driver_context *driver_to_driver_context(struct device_driver *d)
diff --git a/drivers/staging/hv/vmbus_drv.c b/drivers/staging/hv/vmbus_drv.c
index 894eecfc63ca..3397ef08e0aa 100644
--- a/drivers/staging/hv/vmbus_drv.c
+++ b/drivers/staging/hv/vmbus_drv.c
@@ -24,6 +24,10 @@
#include <linux/irq.h>
#include <linux/interrupt.h>
#include <linux/sysctl.h>
+#include <linux/pci.h>
+#include <linux/dmi.h>
+#include <linux/slab.h>
+#include "VersionInfo.h"
#include "osd.h"
#include "logging.h"
#include "vmbus.h"
@@ -47,7 +51,7 @@ struct vmbus_driver_context {
struct tasklet_struct event_dpc;
/* The bus root device */
- struct device_context device_ctx;
+ struct vm_device device_ctx;
};
static int vmbus_match(struct device *device, struct device_driver *driver);
@@ -135,7 +139,7 @@ static ssize_t vmbus_show_device_attr(struct device *dev,
struct device_attribute *dev_attr,
char *buf)
{
- struct device_context *device_ctx = device_to_device_context(dev);
+ struct vm_device *device_ctx = device_to_vm_device(dev);
struct hv_device_info device_info;
memset(&device_info, 0, sizeof(struct hv_device_info));
@@ -245,7 +249,7 @@ static int vmbus_bus_init(int (*drv_init)(struct hv_driver *drv))
{
struct vmbus_driver_context *vmbus_drv_ctx = &g_vmbus_drv;
struct vmbus_driver *vmbus_drv_obj = &g_vmbus_drv.drv_obj;
- struct device_context *dev_ctx = &g_vmbus_drv.device_ctx;
+ struct vm_device *dev_ctx = &g_vmbus_drv.device_ctx;
int ret;
unsigned int vector;
@@ -307,7 +311,7 @@ static int vmbus_bus_init(int (*drv_init)(struct hv_driver *drv))
DPRINT_INFO(VMBUS_DRV, "irq 0x%x vector 0x%x", vmbus_irq, vector);
/* Call to bus driver to add the root device */
- memset(dev_ctx, 0, sizeof(struct device_context));
+ memset(dev_ctx, 0, sizeof(struct vm_device));
ret = vmbus_drv_obj->Base.OnDeviceAdd(&dev_ctx->device_obj, &vector);
if (ret != 0) {
@@ -368,7 +372,7 @@ static void vmbus_bus_exit(void)
struct vmbus_driver *vmbus_drv_obj = &g_vmbus_drv.drv_obj;
struct vmbus_driver_context *vmbus_drv_ctx = &g_vmbus_drv;
- struct device_context *dev_ctx = &g_vmbus_drv.device_ctx;
+ struct vm_device *dev_ctx = &g_vmbus_drv.device_ctx;
DPRINT_ENTER(VMBUS_DRV);
@@ -471,13 +475,13 @@ static struct hv_device *vmbus_child_device_create(struct hv_guid *type,
struct hv_guid *instance,
void *context)
{
- struct device_context *child_device_ctx;
+ struct vm_device *child_device_ctx;
struct hv_device *child_device_obj;
DPRINT_ENTER(VMBUS_DRV);
/* Allocate the new child device */
- child_device_ctx = kzalloc(sizeof(struct device_context), GFP_KERNEL);
+ child_device_ctx = kzalloc(sizeof(struct vm_device), GFP_KERNEL);
if (!child_device_ctx) {
DPRINT_ERR(VMBUS_DRV,
"unable to allocate device_context for child device");
@@ -526,10 +530,10 @@ static int vmbus_child_device_register(struct hv_device *root_device_obj,
struct hv_device *child_device_obj)
{
int ret = 0;
- struct device_context *root_device_ctx =
- to_device_context(root_device_obj);
- struct device_context *child_device_ctx =
- to_device_context(child_device_obj);
+ struct vm_device *root_device_ctx =
+ to_vm_device(root_device_obj);
+ struct vm_device *child_device_ctx =
+ to_vm_device(child_device_obj);
static atomic_t device_num = ATOMIC_INIT(0);
DPRINT_ENTER(VMBUS_DRV);
@@ -572,7 +576,7 @@ static int vmbus_child_device_register(struct hv_device *root_device_obj,
*/
static void vmbus_child_device_unregister(struct hv_device *device_obj)
{
- struct device_context *device_ctx = to_device_context(device_obj);
+ struct vm_device *device_ctx = to_vm_device(device_obj);
DPRINT_ENTER(VMBUS_DRV);
@@ -610,7 +614,7 @@ static void vmbus_child_device_destroy(struct hv_device *device_obj)
*/
static int vmbus_uevent(struct device *device, struct kobj_uevent_env *env)
{
- struct device_context *device_ctx = device_to_device_context(device);
+ struct vm_device *device_ctx = device_to_vm_device(device);
int ret;
DPRINT_ENTER(VMBUS_DRV);
@@ -687,7 +691,7 @@ static int vmbus_match(struct device *device, struct device_driver *driver)
{
int match = 0;
struct driver_context *driver_ctx = driver_to_driver_context(driver);
- struct device_context *device_ctx = device_to_device_context(device);
+ struct vm_device *device_ctx = device_to_vm_device(device);
DPRINT_ENTER(VMBUS_DRV);
@@ -724,7 +728,7 @@ static int vmbus_match(struct device *device, struct device_driver *driver)
*/
static void vmbus_probe_failed_cb(struct work_struct *context)
{
- struct device_context *device_ctx = (struct device_context *)context;
+ struct vm_device *device_ctx = (struct vm_device *)context;
DPRINT_ENTER(VMBUS_DRV);
@@ -746,8 +750,8 @@ static int vmbus_probe(struct device *child_device)
int ret = 0;
struct driver_context *driver_ctx =
driver_to_driver_context(child_device->driver);
- struct device_context *device_ctx =
- device_to_device_context(child_device);
+ struct vm_device *device_ctx =
+ device_to_vm_device(child_device);
DPRINT_ENTER(VMBUS_DRV);
@@ -871,7 +875,7 @@ static void vmbus_bus_release(struct device *device)
*/
static void vmbus_device_release(struct device *device)
{
- struct device_context *device_ctx = device_to_device_context(device);
+ struct vm_device *device_ctx = device_to_vm_device(device);
DPRINT_ENTER(VMBUS_DRV);
@@ -946,6 +950,19 @@ static irqreturn_t vmbus_isr(int irq, void *dev_id)
}
}
+static struct dmi_system_id __initdata microsoft_hv_dmi_table[] = {
+ {
+ .ident = "Hyper-V",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Microsoft Corporation"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Virtual Machine"),
+ DMI_MATCH(DMI_BOARD_NAME, "Virtual Machine"),
+ },
+ },
+ { },
+};
+MODULE_DEVICE_TABLE(dmi, microsoft_hv_dmi_table);
+
static int __init vmbus_init(void)
{
int ret = 0;
@@ -957,6 +974,9 @@ static int __init vmbus_init(void)
vmbus_loglevel, HIWORD(vmbus_loglevel), LOWORD(vmbus_loglevel));
/* Todo: it is used for loglevel, to be ported to new kernel. */
+ if (!dmi_check_system(microsoft_hv_dmi_table))
+ return -ENODEV;
+
ret = vmbus_bus_init(VmbusInitialize);
DPRINT_EXIT(VMBUS_DRV);
@@ -973,7 +993,20 @@ static void __exit vmbus_exit(void)
return;
}
+/*
+ * We use a PCI table to determine if we should autoload this driver This is
+ * needed by distro tools to determine if the hyperv drivers should be
+ * installed and/or configured. We don't do anything else with the table, but
+ * it needs to be present.
+ */
+const static struct pci_device_id microsoft_hv_pci_table[] = {
+ { PCI_DEVICE(0x1414, 0x5353) }, /* VGA compatible controller */
+ { 0 }
+};
+MODULE_DEVICE_TABLE(pci, microsoft_hv_pci_table);
+
MODULE_LICENSE("GPL");
+MODULE_VERSION(HV_DRV_VERSION);
module_param(vmbus_irq, int, S_IRUGO);
module_param(vmbus_loglevel, int, S_IRUGO);
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.