virtionet.cpp File Reference

#include <aurora.h>
#include <pcie.h>
#include <Hal/AA64/aa64lowlevel.h>
#include <Hal/AA64/gic.h>
#include <Fs/Dev/devinput.h>
#include <Drivers/virtio.h>
#include <Drivers/uart.h>
#include <Mm/pmmngr.h>
#include <aucon.h>
#include <Net/aunet.h>
#include <Mm/vmmngr.h>
#include <string.h>
#include <Mm/kmalloc.h>
#include <Net/ethernet.h>

Include dependency graph for virtionet.cpp:

Classes
struct	VirtioNetCfg
struct	_ethernet_

Macros
#define	VIRTIO_F_VERSION_1   (1ull << 32)
#define	RX_BUFFER_COUNT   8
#define	TX_BUFFER_COUNT   8
#define	TX_BUFFER_SIZE   2048
#define	RX_BUFFER_SIZE   2048
#define	VIRTIO_PCI_CAP_ID   0x09
#define	VIRTIO_PCI_CAP_COMMON_CFG   1
#define	VIRTIO_PCI_CAP_DEVICE_CFG   4
#define	ETHERNET_TYPE_IPV4   0x0800
#define	ETHERNET_TYPE_ARP   0x0806
#define	ETHERNET_TYPE_WAKE_ON_LAN   0x0842
#define	ETHERNET_TYPE_AVTP   0x22F0
#define	ETHERNET_TYPE_IETF_TRILL_PROTOCOL   0x22F3
#define	ETHERNET_TYPE_STREAM_RESV_PROTOCOL   0x22EA
#define	ETHERNET_TYPE_IPV6   0x86DD
#define	VIRTIO_NET_HDR_GSO_NODE   0

Typedefs
typedef struct _ethernet_	Ethernet

Functions
void	AuVirtioNetHandler (int spiNum)
	AuVirtioNetHandler – interrupt handler for virtio-net-dev.
void	AuVirtioNetNotifyQueue (struct VirtioCommonCfg *cfg, uint16_t queueIdx)
	AuVirtioNetNotifyQueue – notify queue.
void	AuVirtioNetRxinitialize (struct VirtioCommonCfg *common)
	AuVirtioNetRxInitialize – initialize rx queue.
void	AuVirtioNetTxinitialize (struct VirtioCommonCfg *common)
	AuVirtioNetTxInitialize – initialize tx queue.
void	AuVirtioTransmit (void *packet, uint16_t len)
AU_EXTERN AU_EXPORT size_t	AuVirtioWrite (AuVFSNode *node, AuVFSNode *file, uint64_t *buffer, uint32_t len)
AU_EXTERN AU_EXPORT int	VirtioNetIOCtl (AuVFSNode *file, int code, void *arg)
	VirtioNetIOCtl – io control codes.
void	AuVirtioNetInitialize (uint64_t device)
	AuVirtioNetInitialize – initialize the virtio network device.
AU_EXTERN AU_EXPORT int	AuDriverUnload ()
AU_EXTERN AU_EXPORT int	AuDriverMain ()

Variables
struct VirtioQueue *	rxqueue
struct VirtioQueue *	txqueue
virtio_net_hdr_t *	rx_hdrs
volatile uint8_t *	notifyBase
uint32_t	notifyOffMultiplier
VirtioCommonCfg *	_cfg
AuVFSNode *	nic
AuNetworkDevice *	ndev

Macro Definition Documentation

ETHERNET_TYPE_ARP

#define ETHERNET_TYPE_ARP   0x0806

ETHERNET_TYPE_AVTP

#define ETHERNET_TYPE_AVTP   0x22F0

ETHERNET_TYPE_IETF_TRILL_PROTOCOL

#define ETHERNET_TYPE_IETF_TRILL_PROTOCOL   0x22F3

ETHERNET_TYPE_IPV4

#define ETHERNET_TYPE_IPV4   0x0800

ETHERNET_TYPE_IPV6

#define ETHERNET_TYPE_IPV6   0x86DD

ETHERNET_TYPE_STREAM_RESV_PROTOCOL

#define ETHERNET_TYPE_STREAM_RESV_PROTOCOL   0x22EA

ETHERNET_TYPE_WAKE_ON_LAN

#define ETHERNET_TYPE_WAKE_ON_LAN   0x0842

RX_BUFFER_COUNT

#define RX_BUFFER_COUNT   8

RX_BUFFER_SIZE

#define RX_BUFFER_SIZE   2048

TX_BUFFER_COUNT

#define TX_BUFFER_COUNT   8

TX_BUFFER_SIZE

#define TX_BUFFER_SIZE   2048

VIRTIO_F_VERSION_1

#define VIRTIO_F_VERSION_1   (1ull << 32)

VIRTIO_NET_HDR_GSO_NODE

#define VIRTIO_NET_HDR_GSO_NODE   0

VIRTIO_PCI_CAP_COMMON_CFG

#define VIRTIO_PCI_CAP_COMMON_CFG   1

VIRTIO_PCI_CAP_DEVICE_CFG

#define VIRTIO_PCI_CAP_DEVICE_CFG   4

VIRTIO_PCI_CAP_ID

#define VIRTIO_PCI_CAP_ID   0x09

Typedef Documentation

Ethernet

typedef struct _ethernet_ Ethernet

Function Documentation

AuDriverMain()

AU_EXTERN AU_EXPORT int AuDriverMain

(

)

AuDriverMain – Main entry for virtio net driver

AuDriverUnload()

AU_EXTERN AU_EXPORT int AuDriverUnload

(

)

AuVirtioNetHandler()

void AuVirtioNetHandler

(

int

spiNum

)

AuVirtioNetHandler – interrupt handler for virtio-net-dev.

Parameters

spiNum

– shared peripheral interrupt number passed by system

AuVirtioNetInitialize()

void AuVirtioNetInitialize

(

uint64_t

device

)

AuVirtioNetInitialize – initialize the virtio network device.

Parameters

device

– device address passed by PCIe

feature negotiation

enable RX+TX queue

AuVirtioNetNotifyQueue()

void AuVirtioNetNotifyQueue	(	struct VirtioCommonCfg *	cfg,
		uint16_t	queueIdx
	)

AuVirtioNetNotifyQueue – notify queue.

Parameters

cfg	– Pointer to common queue
queueIdx	– queue number, zero – rx queue, one – tx queue

AuVirtioNetRxinitialize()

void AuVirtioNetRxinitialize

(

struct VirtioCommonCfg *

common

)

AuVirtioNetRxInitialize – initialize rx queue.

Parameters

common

– pointer to virtio common config

AuVirtioNetTxinitialize()

void AuVirtioNetTxinitialize

(

struct VirtioCommonCfg *

common

)

AuVirtioNetTxInitialize – initialize tx queue.

Parameters

common

– pointer to virtio common config

AuVirtioTransmit()

void AuVirtioTransmit	(	void *	packet,
		uint16_t	len
	)

AuVirtioWrite()

AU_EXTERN AU_EXPORT size_t AuVirtioWrite	(	AuVFSNode *	node,
		AuVFSNode *	file,
		uint64_t *	buffer,
		uint32_t	len
	)

VirtioNetIOCtl()

AU_EXTERN AU_EXPORT int VirtioNetIOCtl	(	AuVFSNode *	file,
		int	code,
		void *	arg
	)

VirtioNetIOCtl – io control codes.

Variable Documentation

_cfg

VirtioCommonCfg* _cfg

ndev

AuNetworkDevice* ndev

nic

AuVFSNode* nic

notifyBase

volatile uint8_t* notifyBase

notifyOffMultiplier

uint32_t notifyOffMultiplier

rx_hdrs

virtio_net_hdr_t* rx_hdrs

rxqueue

struct VirtioQueue* rxqueue

txqueue

struct VirtioQueue* txqueue