The Base class of a Port. More...

#include <virtio_net.h>

Inheritance diagram for Virtio_net:

Collaboration diagram for Virtio_net:

Public Member Functions
void	reset () override
	reset callback, called for doing a device reset

int	reconfig_queue (unsigned index) override
	callback for client queue-config request

bool	check_queues () override
	Check whether both virtqueues are ready.

void	register_single_driver_irq () override
	Save the `_kick_guest_irq` that the client sent via `device_notification_irq()`.

void	trigger_driver_config_irq () override
	callback for triggering configuration change notification IRQ

void	notify_queue (L4virtio::Svr::Virtqueue *queue)
	Trigger the `_kick_guest_irq` IRQ.

Virtqueue *	tx_q ()
	Getter for the transmission queue.

Virtqueue *	rx_q ()
	Getter for the receive queue.

Virtqueue const *	tx_q () const
	Getter for the transmission queue.

Virtqueue const *	rx_q () const
	Getter for the receive queue.

Public Member Functions inherited from L4virtio::Svr::Device_t< DATA >
virtual bool	check_features ()
	callback for checking the subset of accepted features

virtual void	cfg_changed (unsigned)
	callback for client device configuration changes

virtual L4::Cap< L4::Irq >	device_notify_irq () const
	callback to gather the device notification IRQ (old-style)

virtual void	register_driver_irq (unsigned idx)
	Callback for registering an notification IRQ (multi IRQ).

virtual L4::Cap< L4::Irq >	device_notify_irq (unsigned idx)
	Callback to gather the device notification IRQ (multi IRQ).

virtual unsigned	num_events_supported () const
	Return the highest notification index supported.

	Device_t (Dev_config *dev_config)
	Make a device for the given config.

Mem_list const *	mem_info () const
	Get the memory region list used for this device.

void	reset_queue_config (unsigned idx, unsigned num_max, bool inc_generation=false)
	Trigger reset for the configuration space for queue idx.

void	init_mem_info (unsigned num)
	Initialize the memory region list to the given maximum.

void	device_error ()
	Transition device into DEVICE_NEEDS_RESET state.

bool	setup_queue (Virtqueue *q, unsigned qn, unsigned num_max)
	Enable/disable the specified queue.

bool	handle_mem_cmd_write ()
	Check for a value in the `cmd` register and handle a write.

void	enable_trusted_ds_validation ()
	Enable trusted dataspace validation.

void	add_trusted_dataspaces (std::shared_ptr< Ds_vector const > ds)
	Provide a list of trusted dataspaces that can be used for validation.

Public Member Functions inherited from L4::Epiface_t0< RPC_IFACE, BASE >
Type_info::Demand	get_buffer_demand () const
	Get the server-side buffer demand based in IFACE.

Cap< RPC_IFACE >	obj_cap () const
	Get the (typed) capability to this object.

Public Member Functions inherited from L4::Epiface
	Epiface ()
	Make a server object.

virtual	~Epiface ()=0
	Destroy the object.

Stored_cap	obj_cap () const
	Get the capability to the kernel object belonging to this object.

Server_iface *	server_iface () const
	Get pointer to server interface at which the object is currently registered.

int	set_server (Server_iface *srv, Cap< void > cap, bool managed=false)
	Set server registration info for the object.

void	set_obj_cap (Cap< void > const &cap)
	Deprecated server registration function.

Additional Inherited Members
Public Types inherited from L4::Epiface_t0< RPC_IFACE, BASE >
typedef RPC_IFACE	Interface
	Data type of the IPC interface definition.

Public Types inherited from L4::Epiface
typedef Ipc_svr::Server_iface	Server_iface
	Type for abstract server interface.

typedef Ipc_svr::Server_iface::Demand	Demand
	Type for server-side receive buffer demand.

Protected Attributes inherited from L4virtio::Svr::Device_t< DATA >
Mem_list	_mem_info
	Memory region list.

Detailed Description

The Base class of a Port.

This class provides the Virtio network protocol specific implementation aspects of a port.

Virtio_net comprises the virtqueues for both, the incoming and the outgoing network requests:

The transmission queue, containing requests to be transmitted to other ports. The transmission queue is filled by the client, this port relates to.
The receive queue, containing requests that have been transmitted from other ports. The receive queue is filled by the switch.

Definition at line 71 of file virtio_net.h.

Member Function Documentation

◆ notify_queue()

void Virtio_net::notify_queue ( L4virtio::Svr::Virtqueue * queue )

inline

Trigger the _kick_guest_irq IRQ.

This function gets called on the receiving port, when a request was successfully transmitted by the switch.

Definition at line 263 of file virtio_net.h.

References L4VIRTIO_IRQ_STATUS_VRING.

The documentation for this class was generated from the following file:

pkg/virtio-net-switch/server/switch/virtio_net.h

Public Member Functions

Additional Inherited Members

Detailed Description

Member Function Documentation

◆ notify_queue()