virtio.c File Reference

#include "init/init.h"
#include "ioforge/ioforge.h"
#include "ioforge/ioforge_pci.h"
#include "ioforge/ioforge_virtio.h"
#include "libk/serial.h"
#include "type.h"
#include <virtio/virtio.h>
#include <str.h>
#include <hal/pci/pci.h>

Go to the source code of this file.

Functions
static void	virtio_scan_capabilities (struct ioforge_pci_device *pci, uint16_t virtio_cap, struct ioforge_virtio_device *v)
static void	for_each_virtio_device (struct ioforge_device *node)
	INIT (Virtio)
	__attribute__ ((used, visibility("default"), section(".export")))
	This function handles memory allocation for a new dentry using the slab allocator.

Variables
struct ioforge_device *	virtio_root = 0

Function Documentation

__attribute__()

__attribute__

(

(used, visibility("default"), section(".export"))

)

This function handles memory allocation for a new dentry using the slab allocator.

It also links the dentry to its corresponding VNode (if provided).

Note

This function performs lazy initialization of the dentry slab cache if it does not exist yet.

Parameters

name	The name of the file or directory.
vnode	Pointer to the associated VNode (inode data). Pass NULL if the VNode is not yet available.

Returns

dentry_ptr A pointer to the newly allocated and initialized dentry.

Definition at line 195 of file virtio.c.

References ioforge_pci_device::device_id, IOFORGE_VIRTIO, KERNEL_API, ioforge_device::next_sibling, NULL, ioforge_virtio_device::pci, ioforge_device::type, ioforge_pci_device::vendor_id, and virtio_root.

for_each_virtio_device()

static void for_each_virtio_device ( struct ioforge_device * node )

static

Definition at line 78 of file virtio.c.

References ioforge_pci_device::bar, virtio_pci_cap::bar, ioforge_pci_device::base, ioforge_virtio_device::common_cfg, device, ioforge_device::first_child, for_each_virtio_device(), ioforge_attach(), IOFORGE_F_VIRTIO, IOFORGE_PCI, IOFORGE_VIRTIO, ioforge_pci_bar::iospace, ioforge_virtio_device::isr_cfg, kalloc(), kfree(), LOG2_ERROR, LOG2_INFO, memcopy(), memset(), ioforge_device::next_sibling, ioforge_virtio_device::notify_cfg, ioforge_virtio_device::pci, pci, pci_read8(), ioforge_device::type, VIRTIO_PCI_CAP, virtio_root, and virtio_scan_capabilities().

Referenced by for_each_virtio_device(), and INIT().

INIT()

INIT

(

Virtio

)

Definition at line 179 of file virtio.c.

References for_each_virtio_device(), ioforge_attach(), ioforge_get_pci_root(), ioforge_get_root(), IOFORGE_ROOT, kalloc(), LOG2_INFO, memset(), pci_root, strcpy(), and virtio_root.

virtio_scan_capabilities()

static void virtio_scan_capabilities ( struct ioforge_pci_device * pci, uint16_t virtio_cap, struct ioforge_virtio_device * v )

static

Definition at line 14 of file virtio.c.

References bar, virtio_pci_cap::bar, cap_len, ioforge_virtio_device::common_cfg, ioforge_virtio_device::isr_cfg, LOG2_INFO, LOG2_WARN, ioforge_virtio_device::notify_cfg, offset, pci, pci_read32(), pci_read8(), VIRTIO_PCI_CAP_COMMON_CFG, VIRTIO_PCI_CAP_ISR_CFG, and VIRTIO_PCI_CAP_NOTIFY_CFG.

Referenced by for_each_virtio_device().

Variable Documentation

virtio_root

struct ioforge_device* virtio_root = 0

Definition at line 11 of file virtio.c.

Referenced by __attribute__(), for_each_virtio_device(), and INIT().