Hyper-V network virtual service client. More...

Data Structures
struct	netvsc_header
	NetVSC message header. More...

struct	netvsc_init_message
	NetVSC initialisation message. More...

struct	netvsc_init_completion
	NetVSC initialisation completion. More...

struct	netvsc_ndis_version_message
	NetVSC NDIS version message. More...

struct	netvsc_establish_buffer_message
	NetVSC establish data buffer message. More...

struct	netvsc_rx_buffer_section
	NetVSC receive data buffer section. More...

struct	netvsc_rx_establish_buffer_completion
	NetVSC establish receive data buffer completion. More...

struct	netvsc_tx_establish_buffer_completion
	NetVSC establish transmit data buffer completion. More...

struct	netvsc_revoke_buffer_message
	NetVSC revoke data buffer message. More...

struct	netvsc_rndis_message
	NetVSC RNDIS message. More...

struct	netvsc_ring
	A NetVSC descriptor ring. More...

struct	netvsc_buffer
	A NetVSC data buffer. More...

struct	netvsc_device
	A NetVSC device. More...

Macros
#define	NETVSC_MTU 512
	Maximum supported NetVSC message length. More...

#define	NETVSC_MAX_WAIT_MS 1000
	Maximum time to wait for a transaction to complete. More...

#define	NETVSC_TX_NUM_DESC 32
	Number of transmit ring entries. More...

#define	NETVSC_RX_BUF_PAGESET 0xbead
	RX data buffer page set ID. More...

#define	NETVSC_RX_BUF_LEN ( 16 * PAGE_SIZE )
	RX data buffer length. More...

#define	NETVSC_BASE_XID 0x18ae0000UL
	Base transaction ID. More...

#define	NETVSC_INIT_MSG 1
	NetVSC initialisation message. More...

#define	NETVSC_VERSION_1 2 /* sic */
	Oldest known NetVSC protocol version. More...

#define	NETVSC_INIT_CMPLT 2
	NetVSC initialisation completion. More...

#define	NETVSC_NDIS_VERSION_MSG 100
	NetVSC NDIS version message. More...

#define	NETVSC_NDIS_MAJOR 6
	NetVSC NDIS major version. More...

#define	NETVSC_NDIS_MINOR 1
	NetVSC NDIS minor version. More...

#define	NETVSC_RX_ESTABLISH_MSG 101
	NetVSC establish receive data buffer message. More...

#define	NETVSC_RX_ESTABLISH_CMPLT 102
	NetVSC establish receive data buffer completion. More...

#define	NETVSC_RX_REVOKE_MSG 103
	NetVSC revoke receive data buffer message. More...

#define	NETVSC_TX_ESTABLISH_MSG 104
	NetVSC establish transmit data buffer message. More...

#define	NETVSC_TX_ESTABLISH_CMPLT 105
	NetVSC establish transmit data buffer completion. More...

#define	NETVSC_TX_REVOKE_MSG 106
	NetVSC revoke transmit data buffer message. More...

#define	NETVSC_RNDIS_MSG 107
	NetVSC RNDIS message. More...

#define	NETVSC_RNDIS_DATA 0
	RNDIS data channel (for RNDIS_PACKET_MSG only) More...

#define	NETVSC_RNDIS_CONTROL 1
	RNDIS control channel (for all other RNDIS messages) More...

#define	NETVSC_RNDIS_NO_BUFFER 0xffffffffUL
	"No buffer used" index More...

Enumerations
enum	netvsc_xrid { NETVSC_TX_BASE_XRID = 0, NETVSC_INIT_XRID = ( NETVSC_TX_BASE_XRID + NETVSC_TX_NUM_DESC ), NETVSC_NDIS_VERSION_XRID, NETVSC_RX_ESTABLISH_XRID, NETVSC_RX_REVOKE_XRID }
	Relative transaction IDs. More...

enum	netvsc_status { NETVSC_NONE = 0, NETVSC_OK = 1, NETVSC_FAIL = 2, NETVSC_TOO_NEW = 3, NETVSC_TOO_OLD = 4, NETVSC_BAD_PACKET = 5, NETVSC_BUSY = 6, NETVSC_UNSUPPORTED = 7 }
	NetVSC status codes. More...

Functions
	FILE_LICENCE (GPL2_OR_LATER_OR_UBDL)

struct netvsc_header	__attribute__ ((packed))

static	__attribute__ ((always_inline)) void netvsc_init_ring(struct netvsc_ring *ring
	Initialise descriptor ring. More...

Variables
uint32_t	type
	Type. More...

struct netvsc_header	header
	Message header. More...

uint32_t	min
	Minimum supported protocol version. More...

uint32_t	max
	Maximum supported protocol version. More...

uint8_t	reserved [20]
	Reserved. More...

uint32_t	version
	Protocol version. More...

uint32_t	max_mdl_len
	Maximum memory descriptor list length. More...

uint32_t	status
	Status. More...

uint32_t	major
	Major version. More...

uint32_t	minor
	Minor version. More...

uint32_t	gpadl
	GPADL ID. More...

uint16_t	pageset
	Page set ID. More...

uint32_t	start
	Starting offset. More...

uint32_t	len
	Subsection length. More...

uint32_t	count
	Number of subsections. More...

uint32_t	end
	Ending offset. More...

struct netvsc_rx_buffer_section	section [1]
	Section descriptors. More...

uint32_t	channel
	RNDIS channel. More...

uint32_t	buffer
	Buffer index (or NETVSC_RNDIS_NO_BUFFER) More...

struct netvsc_ring	__attribute__

static unsigned int struct io_buffer **	iobufs = iobufs

static unsigned int struct io_buffer uint8_t *	ids

static uint16_t struct vmbus_xfer_pages_operations *	op = op

static uint16_t struct vmbus_xfer_pages_operations uint8_t	establish_type = establish_type

static uint16_t struct vmbus_xfer_pages_operations uint8_t uint8_t	establish_xrid = establish_xrid

static uint16_t struct vmbus_xfer_pages_operations uint8_t uint8_t uint8_t	revoke_type = revoke_type

static uint16_t struct vmbus_xfer_pages_operations uint8_t uint8_t uint8_t uint8_t	revoke_xrid = revoke_xrid

Detailed Description

Hyper-V network virtual service client.

Definition in file netvsc.h.

Macro Definition Documentation

◆ NETVSC_MTU

#define NETVSC_MTU 512

Maximum supported NetVSC message length.

Definition at line 13 of file netvsc.h.

◆ NETVSC_MAX_WAIT_MS

#define NETVSC_MAX_WAIT_MS 1000

Maximum time to wait for a transaction to complete.

This is a policy decision.

Definition at line 19 of file netvsc.h.

◆ NETVSC_TX_NUM_DESC

#define NETVSC_TX_NUM_DESC 32

Number of transmit ring entries.

Must be a power of two. This is a policy decision. This value must be sufficiently small to guarantee that we never run out of space in the VMBus outbound ring buffer.

Definition at line 27 of file netvsc.h.

◆ NETVSC_RX_BUF_PAGESET

#define NETVSC_RX_BUF_PAGESET 0xbead

RX data buffer page set ID.

This is a policy decision.

Definition at line 33 of file netvsc.h.

◆ NETVSC_RX_BUF_LEN

#define NETVSC_RX_BUF_LEN ( 16 * PAGE_SIZE )

RX data buffer length.

This is a policy decision.

Definition at line 39 of file netvsc.h.

◆ NETVSC_BASE_XID

#define NETVSC_BASE_XID 0x18ae0000UL

Base transaction ID.

This is a policy decision.

Definition at line 45 of file netvsc.h.

◆ NETVSC_INIT_MSG

#define NETVSC_INIT_MSG 1

NetVSC initialisation message.

Definition at line 80 of file netvsc.h.

◆ NETVSC_VERSION_1

#define NETVSC_VERSION_1 2 /* sic */

Oldest known NetVSC protocol version.

Definition at line 95 of file netvsc.h.

◆ NETVSC_INIT_CMPLT

#define NETVSC_INIT_CMPLT 2

NetVSC initialisation completion.

Definition at line 98 of file netvsc.h.

◆ NETVSC_NDIS_VERSION_MSG

#define NETVSC_NDIS_VERSION_MSG 100

NetVSC NDIS version message.

Definition at line 115 of file netvsc.h.

◆ NETVSC_NDIS_MAJOR

#define NETVSC_NDIS_MAJOR 6

NetVSC NDIS major version.

Definition at line 130 of file netvsc.h.

◆ NETVSC_NDIS_MINOR

#define NETVSC_NDIS_MINOR 1

NetVSC NDIS minor version.

Definition at line 133 of file netvsc.h.

◆ NETVSC_RX_ESTABLISH_MSG

#define NETVSC_RX_ESTABLISH_MSG 101

NetVSC establish receive data buffer message.

Definition at line 136 of file netvsc.h.

◆ NETVSC_RX_ESTABLISH_CMPLT

#define NETVSC_RX_ESTABLISH_CMPLT 102

NetVSC establish receive data buffer completion.

Definition at line 139 of file netvsc.h.

◆ NETVSC_RX_REVOKE_MSG

#define NETVSC_RX_REVOKE_MSG 103

NetVSC revoke receive data buffer message.

Definition at line 142 of file netvsc.h.

◆ NETVSC_TX_ESTABLISH_MSG

#define NETVSC_TX_ESTABLISH_MSG 104

NetVSC establish transmit data buffer message.

Definition at line 145 of file netvsc.h.

◆ NETVSC_TX_ESTABLISH_CMPLT

#define NETVSC_TX_ESTABLISH_CMPLT 105

NetVSC establish transmit data buffer completion.

Definition at line 148 of file netvsc.h.

◆ NETVSC_TX_REVOKE_MSG

#define NETVSC_TX_REVOKE_MSG 106

NetVSC revoke transmit data buffer message.

Definition at line 151 of file netvsc.h.

◆ NETVSC_RNDIS_MSG

#define NETVSC_RNDIS_MSG 107

NetVSC RNDIS message.

Definition at line 210 of file netvsc.h.

◆ NETVSC_RNDIS_DATA

#define NETVSC_RNDIS_DATA 0

RNDIS data channel (for RNDIS_PACKET_MSG only)

Definition at line 227 of file netvsc.h.

◆ NETVSC_RNDIS_CONTROL

#define NETVSC_RNDIS_CONTROL 1

RNDIS control channel (for all other RNDIS messages)

Definition at line 230 of file netvsc.h.

◆ NETVSC_RNDIS_NO_BUFFER

#define NETVSC_RNDIS_NO_BUFFER 0xffffffffUL

"No buffer used" index

Definition at line 233 of file netvsc.h.

Enumeration Type Documentation

◆ netvsc_xrid

enum netvsc_xrid

Relative transaction IDs.

Enumerator
NETVSC_TX_BASE_XRID	Transmit descriptors (one per transmit buffer ID)
NETVSC_INIT_XRID	Initialisation.
NETVSC_NDIS_VERSION_XRID	NDIS version.
NETVSC_RX_ESTABLISH_XRID	Establish receive buffer.
NETVSC_RX_REVOKE_XRID	Revoke receive buffer.

Definition at line 48 of file netvsc.h.

                  {
         /** Transmit descriptors (one per transmit buffer ID) */
         NETVSC_TX_BASE_XRID = 0,
         /** Initialisation */
         NETVSC_INIT_XRID = ( NETVSC_TX_BASE_XRID + NETVSC_TX_NUM_DESC ),
         /** NDIS version */
         NETVSC_NDIS_VERSION_XRID,
         /** Establish receive buffer */
         NETVSC_RX_ESTABLISH_XRID,
         /** Revoke receive buffer */
         NETVSC_RX_REVOKE_XRID,
 };

◆ netvsc_status

enum netvsc_status

NetVSC status codes.

Enumerator
NETVSC_NONE
NETVSC_OK
NETVSC_FAIL
NETVSC_TOO_NEW
NETVSC_TOO_OLD
NETVSC_BAD_PACKET
NETVSC_BUSY
NETVSC_UNSUPPORTED

Definition at line 62 of file netvsc.h.

                    {
         NETVSC_NONE = 0,
         NETVSC_OK = 1,
         NETVSC_FAIL = 2,
         NETVSC_TOO_NEW = 3,
         NETVSC_TOO_OLD = 4,
         NETVSC_BAD_PACKET = 5,
         NETVSC_BUSY = 6,
         NETVSC_UNSUPPORTED = 7,
 };

Function Documentation

◆ FILE_LICENCE()

FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL )

◆ attribute() [1/2]

struct netvsc_header __attribute__ ( (packed) )

◆ attribute() [2/2]

static __attribute__ ( (always_inline) )

inlinestatic

Initialise descriptor ring.

Check if NetVSC device is obsolete.

Initialise data buffer.

Check whether or not descriptor ring is empty.

Check whether or not descriptor ring is full.

Parameters

ring	Descriptor ring
count	Maximum number of used descriptors
iobufs	I/O buffers
ids	Buffer IDs
ring	Descriptor ring
is_full	Ring is full
ring	Descriptor ring
is_empty	Ring is empty
buffer	Data buffer
pageset	Page set ID
op	Page set operations
establish_type	Establish data buffer message type
establish_xrid	Establish data buffer relative transaction ID
revoke_type	Revoke data buffer message type
revoke_type	Revoke data buffer relative transaction ID
len	Required length
netvsc	NetVSC device
is_obsolete	NetVSC device is obsolete

Check if NetVSC device is obsolete (i.e. was opened before the most recent Hyper-V reset).

Definition at line 272 of file netvsc.h.

                                                  {
         unsigned int fill_level;
 
         fill_level = ( ring->id_prod - ring->id_cons );
         assert ( fill_level <= ring->count );
         return ( fill_level >= ring->count );
 }

References assert(), count, netvsc_ring::count, netvsc_ring::id_cons, and netvsc_ring::id_prod.

Variable Documentation

◆ type

uint32_t type

Type.

Definition at line 12 of file netvsc.h.

◆ header

struct netvsc_header header

Message header.

Definition at line 12 of file netvsc.h.

◆ min

uint32_t min

Minimum supported protocol version.

Definition at line 14 of file netvsc.h.

◆ max

uint32_t max

Maximum supported protocol version.

Definition at line 16 of file netvsc.h.

◆ reserved

uint8_t reserved[16]

Reserved.

Definition at line 18 of file netvsc.h.

◆ version

uint32_t version

Protocol version.

Definition at line 14 of file netvsc.h.

◆ max_mdl_len

uint32_t max_mdl_len

Maximum memory descriptor list length.

Definition at line 16 of file netvsc.h.

◆ status

uint32_t status

Status.

Definition at line 18 of file netvsc.h.

◆ major

uint8_t major

Major version.

Major version number.

Definition at line 14 of file netvsc.h.

Referenced by aoe_open(), aoe_parse_uri(), aoedev_open(), ar9300_comp_hdr_unpack(), and ar9300_eeprom_restore_internal().

◆ minor

uint8_t minor

Minor version.

Minor version number.

Definition at line 16 of file netvsc.h.

Referenced by aoe_open(), aoe_parse_uri(), aoedev_open(), ar9300_comp_hdr_unpack(), ar9300_eeprom_restore_internal(), and falcon_probe_nic_variant().

◆ gpadl

uint32_t gpadl

GPADL ID.

Definition at line 14 of file netvsc.h.

Referenced by netvsc_create_buffer(), vmbus_establish_gpadl(), vmbus_gpadl_is_obsolete(), vmbus_gpadl_teardown(), and vmbus_open().

◆ pageset

static uint16_t pageset

Page set ID.

Definition at line 16 of file netvsc.h.

Referenced by vmbus_xfer_pages().

◆ len

buffer len

Initial value:

{
        buffer->pages.pageset = cpu_to_le16 ( pageset )

Subsection length.

Buffer length.

Section length.

Definition at line 14 of file netvsc.h.

◆ count

unsigned int count

Number of subsections.

Number of sections (must be 1)

Definition at line 16 of file netvsc.h.

Referenced by __attribute__().

◆ end

uint32_t end

Ending offset.

Definition at line 18 of file netvsc.h.

Referenced by aes_setkey(), aoe_parse_uri(), arbel_map_vpm(), asn1_shrink(), bzimage_parse_cmdline(), cpio_parse_cmdline(), dns_encode(), eepro_transmit(), efi_aoe_path(), efi_block_exec(), efi_fcp_path(), efi_ib_srp_path(), efi_ifr_end_op(), efi_ifr_package(), efi_image_path(), efi_iscsi_path(), efi_locate_device(), efi_netdev_path(), efi_path_len(), efi_path_terminate(), efi_paths(), efi_uri_path(), efi_usb_path(), efipci_ioremap(), elf_segment(), expand_settings(), fbcon_handle_sgr(), format_decimal(), format_hex(), hermon_map_vpm(), hide_region(), hide_umalloc(), ib_srp_parse_integer(), ieee80211_ie_bound(), inet6_aton(), ipair_key(), ipair_rx_pair(), ipair_rx_pubkey(), ipair_rx_session(), ipair_tag(), ipv6_check_options(), iscsi_handle_maxburstlength_value(), pci_find_next(), peerblk_deliver(), peerblk_retrieval_rx(), peerdist_discovery_reply_values(), peerdist_info_block(), pem_asn1(), prep_segment(), register_fdt(), relocate(), rsa_decrypt(), sec80211_detect_ie(), sec80211_find_rsn(), sis190_rx_fill(), skge_ramset(), sky2_ramset(), slam_parse_multicast_address(), smbios_checksum(), strsep(), tcp_rx_opts(), tftp_process_blksize(), tftp_process_tsize(), tftp_rx_oack(), tkip_michael(), uhci_async_schedule(), uhci_enqueue(), uhci_periodic_schedule(), usb_is_within_config(), usbio_open(), usbio_path(), and vsnprintf().

◆ section

struct netvsc_rx_buffer_section section[1]

Section descriptors.

Definition at line 18 of file netvsc.h.

◆ channel

uint8_t channel

RNDIS channel.

Channel number.

Definition at line 14 of file netvsc.h.

Referenced by ar5008_hw_process_ini(), ar9003_hw_process_ini(), ath5k_get_chan_pcal_surrounding_piers(), ath5k_get_max_ctl_power(), ath5k_get_rate_pcal_data(), ath5k_hw_chan_has_spur_noise(), ath5k_hw_channel(), ath5k_hw_commit_eeprom_settings(), ath5k_hw_phy_calibrate(), ath5k_hw_reset(), ath5k_hw_rf2425_channel(), ath5k_hw_rf5110_calibrate(), ath5k_hw_rf5110_chan2athchan(), ath5k_hw_rf5110_channel(), ath5k_hw_rf5111_chan2athchan(), ath5k_hw_rf5111_channel(), ath5k_hw_rf5112_channel(), ath5k_hw_rf511x_calibrate(), ath5k_hw_rfregs_init(), ath5k_hw_set_txpower_limit(), ath5k_hw_tweak_initval_settings(), ath5k_hw_txpower(), ath5k_hw_write_ofdm_timings(), ath5k_setup_channel_powertable(), ath9k_cmn_get_curchannel(), ath9k_hw_channel_change(), ath9k_hw_set_txpowerlimit(), ath_radio_disable(), ath_set_channel(), ath_update_survey_nf(), grf5101_rf_set_channel(), guestrpc_close(), guestrpc_command(), guestrpc_command_data(), guestrpc_command_len(), guestrpc_open(), guestrpc_reply_data(), guestrpc_reply_finish(), guestrpc_reply_len(), linda_ib_epb_mod_reg(), linda_set_serdes_param(), max2820_rf_set_channel(), net80211_change_channel(), png_pixels_pass(), qib7322_ahb_mod_reg_all(), rtl8225_rf_set_tx_power(), rtl8225z2_rf_set_tx_power(), sa2400_rf_set_channel(), vmbus_probe_channels(), and vmbus_reset_channels().

◆ attribute

struct netvsc_ring __attribute__

◆ iobufs

ring iobufs = iobufs

Definition at line 259 of file netvsc.h.

◆ ids

ring ids

Initial value:

{
        ring->count = count

Definition at line 259 of file netvsc.h.

◆ op

buffer pages op = op

Definition at line 327 of file netvsc.h.

Referenced by acpi_describe(), alloc_usb_bus(), ata_command(), block_capacity(), block_read(), block_read_capacity(), block_write(), bofm_init(), cipher_cost(), dhcpv6_fetch(), dma_init(), dma_op_alloc(), dma_op_map(), dma_op_set_mask(), dma_op_umalloc(), edd_describe(), efi_describe(), efi_ifr_op(), efi_pxe_fake(), efipci_dma_map(), efipci_dma_set_mask(), ib_create_conn(), ib_create_cq(), ib_create_madx(), ib_create_path(), ib_create_qp(), ib_create_service_madx(), identify_device(), init_widget(), int13con_rw(), intelxl_context(), intelxl_context_dump(), intelxl_context_line(), intf_close(), intf_get_dest_op_no_passthru_untyped(), intf_poke(), job_progress(), mdio_init(), ndp_prefix_fetch(), netdev_fetch(), netdev_init(), netdev_store(), nii_get_station_address(), nii_initialise_flags(), nii_io(), nii_issue(), nii_issue_cpb(), nii_issue_cpb_db(), nii_issue_db(), nii_map(), nii_poll(), nii_set_rx_filters(), nii_set_station_address(), nii_transmit(), peerdisc_init(), peerdisc_stat(), resolv_done(), rndis_init(), scsi_command(), scsi_response(), settings_init(), sky2_rx_add(), vmbus_open(), xfer_alloc_iob(), xfer_buffer(), xfer_deliver(), xfer_vredirect(), xfer_window(), and xsigo_discover().

◆ establish_type

buffer establish_type = establish_type

Definition at line 327 of file netvsc.h.

◆ establish_xrid

buffer establish_xrid = establish_xrid

Definition at line 327 of file netvsc.h.

◆ revoke_type

buffer revoke_type = revoke_type

Definition at line 327 of file netvsc.h.

◆ revoke_xrid

buffer revoke_xrid = revoke_xrid

Definition at line 327 of file netvsc.h.

Data Structures

Macros

Enumerations

Functions

Variables

Detailed Description

Macro Definition Documentation

◆ NETVSC_MTU

◆ NETVSC_MAX_WAIT_MS

◆ NETVSC_TX_NUM_DESC

◆ NETVSC_RX_BUF_PAGESET

◆ NETVSC_RX_BUF_LEN

◆ NETVSC_BASE_XID

◆ NETVSC_INIT_MSG

◆ NETVSC_VERSION_1

◆ NETVSC_INIT_CMPLT

◆ NETVSC_NDIS_VERSION_MSG

◆ NETVSC_NDIS_MAJOR

◆ NETVSC_NDIS_MINOR

◆ NETVSC_RX_ESTABLISH_MSG

◆ NETVSC_RX_ESTABLISH_CMPLT

◆ NETVSC_RX_REVOKE_MSG

◆ NETVSC_TX_ESTABLISH_MSG

◆ NETVSC_TX_ESTABLISH_CMPLT

◆ NETVSC_TX_REVOKE_MSG

◆ NETVSC_RNDIS_MSG

◆ NETVSC_RNDIS_DATA

◆ NETVSC_RNDIS_CONTROL

◆ NETVSC_RNDIS_NO_BUFFER

Enumeration Type Documentation

◆ netvsc_xrid

◆ netvsc_status

Function Documentation

◆ FILE_LICENCE()

◆ __attribute__() [1/2]

◆ __attribute__() [2/2]

Variable Documentation

◆ type

◆ header

◆ min

◆ max

◆ reserved

◆ version

◆ max_mdl_len

◆ status

◆ major

◆ minor

◆ gpadl

◆ pageset

◆ len

◆ count

◆ end

◆ section

◆ channel

◆ __attribute__

◆ iobufs

◆ ids

◆ op

◆ establish_type

◆ establish_xrid

◆ revoke_type

◆ revoke_xrid

◆ attribute() [1/2]

◆ attribute() [2/2]

◆ attribute