diff options
Diffstat (limited to 'drivers/staging/hv/include/vstorage.h')
| -rw-r--r-- | drivers/staging/hv/include/vstorage.h | 222 |
1 files changed, 110 insertions, 112 deletions
diff --git a/drivers/staging/hv/include/vstorage.h b/drivers/staging/hv/include/vstorage.h index ada1f649e9e..33646e76da7 100644 --- a/drivers/staging/hv/include/vstorage.h +++ b/drivers/staging/hv/include/vstorage.h @@ -24,28 +24,28 @@ #pragma once -//#include <vmbuspacketformat.h> -//#include <ntddscsi.h> +/* #include <vmbuspacketformat.h> */ +/* #include <ntddscsi.h> */ #define C_ASSERT(x) -// -// public interface to the server -// -// -// Storvsp device interface guid -// +/* public interface to the server */ -// -// Protocol versions. -// -// -// vstorage.w revision number. This is used in the case of a version match, -// to alert the user that structure sizes may be mismatched even though the -// protocol versions match. -// +/* Storvsp device interface guid */ + + + + +/* Protocol versions. */ + + + +/* vstorage.w revision number. This is used in the case of a version match, */ +/* to alert the user that structure sizes may be mismatched even though the */ +/* protocol versions match. */ + #define REVISION_STRING(REVISION_) #REVISION_ #define FILL_VMSTOR_REVISION(RESULT_LVALUE_) \ @@ -54,53 +54,53 @@ RESULT_LVALUE_ = 0; \ while (*revisionString >= '0' && *revisionString <= '9') \ { \ - RESULT_LVALUE_ *= 10; \ - RESULT_LVALUE_ += *revisionString - '0'; \ - revisionString++; \ + RESULT_LVALUE_ *= 10; \ + RESULT_LVALUE_ += *revisionString - '0'; \ + revisionString++; \ } \ } -// -// Major/minor macros. Minor version is in LSB, meaning that earlier flat -// version numbers will be interpreted as "0.x" (i.e., 1 becomes 0.1). -// + +/* Major/minor macros. Minor version is in LSB, meaning that earlier flat */ +/* version numbers will be interpreted as "0.x" (i.e., 1 becomes 0.1). */ + #define VMSTOR_PROTOCOL_MAJOR(VERSION_) (((VERSION_) >> 8) & 0xff) #define VMSTOR_PROTOCOL_MINOR(VERSION_) (((VERSION_) ) & 0xff) #define VMSTOR_PROTOCOL_VERSION(MAJOR_, MINOR_) ((((MAJOR_) & 0xff) << 8) | \ - (((MINOR_) & 0xff) )) + (((MINOR_) & 0xff) )) + + +/* Invalid version. */ -// -// Invalid version. -// #define VMSTOR_INVALID_PROTOCOL_VERSION -1 -// -// Version history: -// V1 Beta 0.1 -// V1 RC < 2008/1/31 1.0 -// V1 RC > 2008/1/31 2.0 -// + +/* Version history: */ +/* V1 Beta 0.1 */ +/* V1 RC < 2008/1/31 1.0 */ +/* V1 RC > 2008/1/31 2.0 */ + #define VMSTOR_PROTOCOL_VERSION_CURRENT VMSTOR_PROTOCOL_VERSION(2, 0) -// -// This will get replaced with the max transfer length that is possible on -// the host adapter. -// The max transfer length will be published when we offer a vmbus channel. -// + +/* This will get replaced with the max transfer length that is possible on */ +/* the host adapter. */ +/* The max transfer length will be published when we offer a vmbus channel. */ + #define MAX_TRANSFER_LENGTH 0x40000 #define DEFAULT_PACKET_SIZE (sizeof(VMDATA_GPA_DIRECT) + \ - sizeof(VSTOR_PACKET) + \ - (sizeof(u64) * (MAX_TRANSFER_LENGTH / PAGE_SIZE))) + sizeof(VSTOR_PACKET) + \ + (sizeof(u64) * (MAX_TRANSFER_LENGTH / PAGE_SIZE))) + + +/* Packet structure describing virtual storage requests. */ -// -// Packet structure describing virtual storage requests. -// typedef enum { @@ -119,11 +119,11 @@ typedef enum } VSTOR_PACKET_OPERATION; -// -// Platform neutral description of a scsi request - -// this remains the same across the write regardless of 32/64 bit -// note: it's patterned off the SCSI_PASS_THROUGH structure -// + +/* Platform neutral description of a scsi request - */ +/* this remains the same across the write regardless of 32/64 bit */ +/* note: it's patterned off the SCSI_PASS_THROUGH structure */ + #pragma pack(push,1) @@ -159,11 +159,11 @@ typedef struct union { - unsigned char Cdb[CDB16GENERIC_LENGTH]; + unsigned char Cdb[CDB16GENERIC_LENGTH]; - unsigned char SenseData[SENSE_BUFFER_SIZE]; + unsigned char SenseData[SENSE_BUFFER_SIZE]; - unsigned char ReservedArray[MAX_DATA_BUFFER_LENGTH_WITH_PADDING]; + unsigned char ReservedArray[MAX_DATA_BUFFER_LENGTH_WITH_PADDING]; }; } VMSCSI_REQUEST, *PVMSCSI_REQUEST; @@ -171,10 +171,10 @@ typedef struct C_ASSERT((sizeof(VMSCSI_REQUEST) % 4) == 0); -// -// This structure is sent during the intialization phase to get the different -// properties of the channel. -// + +/* This structure is sent during the intialization phase to get the different */ +/* properties of the channel. */ + typedef struct { @@ -182,19 +182,19 @@ typedef struct unsigned char PathId; unsigned char TargetId; - // - // Note: port number is only really known on the client side - // + + /* Note: port number is only really known on the client side */ + unsigned int PortNumber; unsigned int Flags; unsigned int MaxTransferBytes; - // - // This id is unique for each channel and will correspond with - // vendor specific data in the inquirydata - // + + /* This id is unique for each channel and will correspond with */ + /* vendor specific data in the inquirydata */ + unsigned long long UniqueId; @@ -203,24 +203,24 @@ typedef struct C_ASSERT((sizeof(VMSTORAGE_CHANNEL_PROPERTIES) % 4) == 0); -// -// This structure is sent during the storage protocol negotiations. -// + +/* This structure is sent during the storage protocol negotiations. */ + typedef struct { - // - // Major (MSW) and minor (LSW) version numbers. - // + + /* Major (MSW) and minor (LSW) version numbers. */ + unsigned short MajorMinor; - // - // Revision number is auto-incremented whenever this file is changed - // (See FILL_VMSTOR_REVISION macro above). Mismatch does not definitely - // indicate incompatibility--but it does indicate mismatched builds. - // + + /* Revision number is auto-incremented whenever this file is changed */ + /* (See FILL_VMSTOR_REVISION macro above). Mismatch does not definitely */ + /* indicate incompatibility--but it does indicate mismatched builds. */ + unsigned short Revision; @@ -229,9 +229,9 @@ typedef struct C_ASSERT((sizeof(VMSTORAGE_PROTOCOL_VERSION) % 4) == 0); -// -// Channel Property Flags -// + +/* Channel Property Flags */ + #define STORAGE_CHANNEL_REMOVABLE_FLAG 0x1 #define STORAGE_CHANNEL_EMULATED_IDE_FLAG 0x2 @@ -239,71 +239,69 @@ C_ASSERT((sizeof(VMSTORAGE_PROTOCOL_VERSION) % 4) == 0); typedef struct _VSTOR_PACKET { - // - // Requested operation type - // + + /* Requested operation type */ + VSTOR_PACKET_OPERATION Operation; - // - // Flags - see below for values - // + + /* Flags - see below for values */ + unsigned int Flags; - // - // Status of the request returned from the server side. - // + + /* Status of the request returned from the server side. */ + unsigned int Status; - // - // Data payload area - // + + /* Data payload area */ + union { - // - // Structure used to forward SCSI commands from the client to the server. - // - VMSCSI_REQUEST VmSrb; + /* Structure used to forward SCSI commands from the client to the server. */ - // - // Structure used to query channel properties. - // - VMSTORAGE_CHANNEL_PROPERTIES StorageChannelProperties; + VMSCSI_REQUEST VmSrb; - // - // Used during version negotiations. - // - VMSTORAGE_PROTOCOL_VERSION Version; + /* Structure used to query channel properties. */ + + + VMSTORAGE_CHANNEL_PROPERTIES StorageChannelProperties; + + + /* Used during version negotiations. */ + + + VMSTORAGE_PROTOCOL_VERSION Version; }; } VSTOR_PACKET, *PVSTOR_PACKET; C_ASSERT((sizeof(VSTOR_PACKET) % 4) == 0); -// -// Packet flags -// -// -// This flag indicates that the server should send back a completion for this -// packet. -// +/* Packet flags */ + + + +/* This flag indicates that the server should send back a completion for this */ +/* packet. */ + #define REQUEST_COMPLETION_FLAG 0x1 -// -// This is the set of flags that the vsc can set in any packets it sends -// -#define VSC_LEGAL_FLAGS (REQUEST_COMPLETION_FLAG) +/* This is the set of flags that the vsc can set in any packets it sends */ -#pragma pack(pop) +#define VSC_LEGAL_FLAGS (REQUEST_COMPLETION_FLAG) +#pragma pack(pop) |