storvsc_drv.c File Reference

#include <linux/kernel.h>
#include <linux/wait.h>
#include <linux/sched.h>
#include <linux/completion.h>
#include <linux/string.h>
#include <linux/mm.h>
#include <linux/delay.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/device.h>
#include <linux/hyperv.h>
#include <linux/mempool.h>
#include <scsi/scsi.h>
#include <scsi/scsi_cmnd.h>
#include <scsi/scsi_host.h>
#include <scsi/scsi_device.h>
#include <scsi/scsi_tcq.h>
#include <scsi/scsi_eh.h>
#include <scsi/scsi_devinfo.h>
#include <scsi/scsi_dbg.h>

Go to the source code of this file.

Data Structures
struct	vmscsi_request
struct	vmstorage_channel_properties
struct	vmstorage_protocol_version
struct	vstor_packet
struct	storvsc_cmd_request
struct	storvsc_device
struct	stor_mem_pools
struct	hv_host_device
struct	storvsc_scan_work

Macros
#define	VMSTOR_CURRENT_MAJOR   4
#define	VMSTOR_CURRENT_MINOR   2
#define	STORVSC_MAX_CMD_LEN   0x10
#define	STORVSC_SENSE_BUFFER_SIZE   0x12
#define	STORVSC_MAX_BUF_LEN_WITH_PADDING   0x14
#define	STORAGE_CHANNEL_REMOVABLE_FLAG   0x1
#define	STORAGE_CHANNEL_EMULATED_IDE_FLAG   0x2
#define	REQUEST_COMPLETION_FLAG   0x1
#define	SRB_STATUS_AUTOSENSE_VALID   0x80
#define	SRB_STATUS_INVALID_LUN   0x20
#define	SRB_STATUS_SUCCESS   0x01
#define	SRB_STATUS_ERROR   0x04
#define	STORVSC_MIN_BUF_NR   64
#define	STORVSC_MAX_IO_REQUESTS   128
#define	STORVSC_MAX_LUNS_PER_TARGET   64
#define	STORVSC_MAX_TARGETS   1
#define	STORVSC_MAX_CHANNELS   1

Enumerations
enum	vstor_packet_operation {   VSTOR_OPERATION_COMPLETE_IO = 1, VSTOR_OPERATION_REMOVE_DEVICE = 2, VSTOR_OPERATION_EXECUTE_SRB = 3, VSTOR_OPERATION_RESET_LUN = 4,   VSTOR_OPERATION_RESET_ADAPTER = 5, VSTOR_OPERATION_RESET_BUS = 6, VSTOR_OPERATION_BEGIN_INITIALIZATION = 7, VSTOR_OPERATION_END_INITIALIZATION = 8,   VSTOR_OPERATION_QUERY_PROTOCOL_VERSION = 9, VSTOR_OPERATION_QUERY_PROPERTIES = 10, VSTOR_OPERATION_ENUMERATE_BUS = 11, VSTOR_OPERATION_MAXIMUM = 11 }
enum	storvsc_request_type { WRITE_TYPE = 0, READ_TYPE, UNKNOWN_TYPE }
enum	{ SCSI_GUID, IDE_GUID }

Functions
struct vmscsi_request	__attribute ((packed))
	module_param (storvsc_ringbuffer_size, int, S_IRUGO)
	MODULE_PARM_DESC (storvsc_ringbuffer_size,"Ring buffer size (bytes)")
	MODULE_DEVICE_TABLE (vmbus, id_table)
	MODULE_LICENSE ("GPL")
	MODULE_VERSION (HV_DRV_VERSION)
	MODULE_DESCRIPTION ("Microsoft Hyper-V virtual storage driver")
	module_init (storvsc_drv_init)
	module_exit (storvsc_drv_exit)

Variables
u16	length
u8	srb_status
u8	scsi_status
u8	port_number
u8	path_id
u8	target_id
u8	lun
u8	cdb_length
u8	sense_info_length
u8	data_in
u8	reserved
u32	data_transfer_length
union {
u8   cdb [STORVSC_MAX_CMD_LEN]
u8   sense_data [STORVSC_SENSE_BUFFER_SIZE]
u8   reserved_array [STORVSC_MAX_BUF_LEN_WITH_PADDING]
};
struct vmstorage_channel_properties	__packed

Macro Definition Documentation

#define REQUEST_COMPLETION_FLAG   0x1

Definition at line 188 of file storvsc_drv.c.

#define SRB_STATUS_AUTOSENSE_VALID   0x80

Definition at line 201 of file storvsc_drv.c.

#define SRB_STATUS_ERROR   0x04

Definition at line 204 of file storvsc_drv.c.

#define SRB_STATUS_INVALID_LUN   0x20

Definition at line 202 of file storvsc_drv.c.

#define SRB_STATUS_SUCCESS   0x01

Definition at line 203 of file storvsc_drv.c.

#define STORAGE_CHANNEL_EMULATED_IDE_FLAG   0x2

Definition at line 153 of file storvsc_drv.c.

#define STORAGE_CHANNEL_REMOVABLE_FLAG   0x1

Definition at line 152 of file storvsc_drv.c.

#define STORVSC_MAX_BUF_LEN_WITH_PADDING   0x14

Definition at line 87 of file storvsc_drv.c.

#define STORVSC_MAX_CHANNELS   1

Definition at line 233 of file storvsc_drv.c.

#define STORVSC_MAX_CMD_LEN   0x10

Definition at line 85 of file storvsc_drv.c.

#define STORVSC_MAX_IO_REQUESTS   128

Definition at line 223 of file storvsc_drv.c.

#define STORVSC_MAX_LUNS_PER_TARGET   64

Definition at line 231 of file storvsc_drv.c.

#define STORVSC_MAX_TARGETS   1

Definition at line 232 of file storvsc_drv.c.

#define STORVSC_MIN_BUF_NR   64

Definition at line 217 of file storvsc_drv.c.

#define STORVSC_SENSE_BUFFER_SIZE   0x12

Definition at line 86 of file storvsc_drv.c.

#define VMSTOR_CURRENT_MAJOR   4

Definition at line 60 of file storvsc_drv.c.

#define VMSTOR_CURRENT_MINOR   2

Definition at line 61 of file storvsc_drv.c.

Enumeration Type Documentation

anonymous enum

Enumerator:

SCSI_GUID
IDE_GUID

Definition at line 1406 of file storvsc_drv.c.

enum storvsc_request_type

Enumerator:

WRITE_TYPE
READ_TYPE
UNKNOWN_TYPE

Definition at line 191 of file storvsc_drv.c.

enum vstor_packet_operation

Enumerator:

VSTOR_OPERATION_COMPLETE_IO
VSTOR_OPERATION_REMOVE_DEVICE
VSTOR_OPERATION_EXECUTE_SRB
VSTOR_OPERATION_RESET_LUN
VSTOR_OPERATION_RESET_ADAPTER
VSTOR_OPERATION_RESET_BUS
VSTOR_OPERATION_BEGIN_INITIALIZATION
VSTOR_OPERATION_END_INITIALIZATION
VSTOR_OPERATION_QUERY_PROTOCOL_VERSION
VSTOR_OPERATION_QUERY_PROPERTIES
VSTOR_OPERATION_ENUMERATE_BUS
VSTOR_OPERATION_MAXIMUM

Definition at line 65 of file storvsc_drv.c.

Function Documentation

struct vmscsi_request __attribute

(

(packed)

)

MODULE_DESCRIPTION

(

"Microsoft Hyper-V virtual storage driver"

)

MODULE_DEVICE_TABLE	(	vmbus	,
		id_table
	)

module_exit

(

storvsc_drv_exit

)

module_init

(

storvsc_drv_init

)

MODULE_LICENSE

(

"GPL"

)

module_param	(	storvsc_ringbuffer_size	,
		int	,
		S_IRUGO
	)

MODULE_PARM_DESC	(	storvsc_ringbuffer_size	,
		"Ring buffer size (bytes)"
	)

MODULE_VERSION

(

HV_DRV_VERSION

)

Variable Documentation

union { ... }

struct vstor_packet __packed

u8 cdb[STORVSC_MAX_CMD_LEN]

Definition at line 129 of file storvsc_drv.c.

u8 cdb_length

Definition at line 121 of file storvsc_drv.c.

u8 data_in

Definition at line 123 of file storvsc_drv.c.

u32 data_transfer_length

Definition at line 126 of file storvsc_drv.c.

u16 length

Definition at line 112 of file storvsc_drv.c.

u8 lun

Definition at line 119 of file storvsc_drv.c.

u8 path_id

Definition at line 117 of file storvsc_drv.c.

u8 port_number

Definition at line 116 of file storvsc_drv.c.

u8 reserved

Definition at line 124 of file storvsc_drv.c.

u8 reserved_array[STORVSC_MAX_BUF_LEN_WITH_PADDING]

Definition at line 131 of file storvsc_drv.c.

u8 scsi_status

Definition at line 114 of file storvsc_drv.c.

u8 sense_data[STORVSC_SENSE_BUFFER_SIZE]

Definition at line 130 of file storvsc_drv.c.

u8 sense_info_length

Definition at line 122 of file storvsc_drv.c.

u8 srb_status

Definition at line 113 of file storvsc_drv.c.

u8 target_id

Definition at line 118 of file storvsc_drv.c.