pci.c File Reference

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Data Structures
struct	virtio_ctrl_msg

Macros
#define	PCI_VENDOR_ID_VIRTIO   0x1af4
#define	PCI_DEVICE_ID_VIRTIO_NIC   0x1000
#define	PCI_DEVICE_ID_VIRTIO_NIC_MODERN   0x1041
#define	PCI_CAPABILITY_LIST   0x34
#define	PCI_CAP_ID_VNDR   0x09
#define	PCI_CAP_ID_MSIX   0x11
#define	PCI_MSIX_ENABLE   0x8000
#define	PCI_CONFIG_SIZE(vif)

Functions
static void	virtio_pci_legacy_read_config (vlib_main_t *vm, virtio_if_t *vif, void *dst, int len, u32 addr)
static void	virtio_pci_legacy_write_config (vlib_main_t *vm, virtio_if_t *vif, void *src, int len, u32 addr)
static u64	virtio_pci_legacy_get_host_features (vlib_main_t *vm, virtio_if_t *vif)
static u32	virtio_pci_legacy_get_guest_features (vlib_main_t *vm, virtio_if_t *vif)
static u32	virtio_pci_legacy_set_guest_features (vlib_main_t *vm, virtio_if_t *vif, u64 features)
static u8	virtio_pci_legacy_get_status (vlib_main_t *vm, virtio_if_t *vif)
static void	virtio_pci_legacy_set_status (vlib_main_t *vm, virtio_if_t *vif, u8 status)
static u8	virtio_pci_legacy_reset (vlib_main_t *vm, virtio_if_t *vif)
static u8	virtio_pci_legacy_get_isr (vlib_main_t *vm, virtio_if_t *vif)
static u16	virtio_pci_legacy_get_queue_num (vlib_main_t *vm, virtio_if_t *vif, u16 queue_id)
static int	virtio_pci_legacy_setup_queue (vlib_main_t *vm, virtio_if_t *vif, u16 queue_id, void *p)
static void	virtio_pci_legacy_del_queue (vlib_main_t *vm, virtio_if_t *vif, u16 queue_id)
void	virtio_pci_legacy_notify_queue (vlib_main_t *vm, virtio_if_t *vif, u16 queue_id)
static u16	virtio_pci_legacy_set_config_irq (vlib_main_t *vm, virtio_if_t *vif, u16 vec)
static u16	virtio_pci_legacy_set_queue_irq (vlib_main_t *vm, virtio_if_t *vif, u16 vec, u16 queue_id)
static u32	virtio_pci_flag_change (vnet_main_t *vnm, vnet_hw_interface_t *hw, u32 flags)
static clib_error_t *	virtio_pci_get_max_virtqueue_pairs (vlib_main_t *vm, virtio_if_t *vif)
static void	virtio_pci_set_mac (vlib_main_t *vm, virtio_if_t *vif)
static u32	virtio_pci_get_mac (vlib_main_t *vm, virtio_if_t *vif)
static u16	virtio_pci_is_link_up (vlib_main_t *vm, virtio_if_t *vif)
static void	virtio_pci_irq_queue_handler (vlib_main_t *vm, vlib_pci_dev_handle_t h, u16 line)
static void	virtio_pci_irq_config_handler (vlib_main_t *vm, vlib_pci_dev_handle_t h, u16 line)
static void	virtio_pci_irq_handler (vlib_main_t *vm, vlib_pci_dev_handle_t h)
void	device_status (vlib_main_t *vm, virtio_if_t *vif)
void	debug_device_config_space (vlib_main_t *vm, virtio_if_t *vif)
static int	virtio_pci_send_ctrl_msg (vlib_main_t *vm, virtio_if_t *vif, struct virtio_ctrl_msg *data, u32 len)
static int	virtio_pci_disable_offload (vlib_main_t *vm, virtio_if_t *vif)
static int	virtio_pci_enable_checksum_offload (vlib_main_t *vm, virtio_if_t *vif)
static int	virtio_pci_enable_gso (vlib_main_t *vm, virtio_if_t *vif)
static int	virtio_pci_offloads (vlib_main_t *vm, virtio_if_t *vif, int gso_enabled, int csum_offload_enabled)
static int	virtio_pci_enable_multiqueue (vlib_main_t *vm, virtio_if_t *vif, u16 num_queues)
static u8	virtio_pci_queue_size_valid (u16 qsz)
clib_error_t *	virtio_pci_control_vring_init (vlib_main_t *vm, virtio_if_t *vif, u16 queue_num)
clib_error_t *	virtio_pci_vring_init (vlib_main_t *vm, virtio_if_t *vif, u16 queue_num)
static void	virtio_negotiate_features (vlib_main_t *vm, virtio_if_t *vif, u64 req_features)
void	virtio_pci_read_device_feature (vlib_main_t *vm, virtio_if_t *vif)
int	virtio_pci_reset_device (vlib_main_t *vm, virtio_if_t *vif)
clib_error_t *	virtio_pci_read_caps (vlib_main_t *vm, virtio_if_t *vif)
static clib_error_t *	virtio_pci_device_init (vlib_main_t *vm, virtio_if_t *vif, virtio_pci_create_if_args_t *args)
void	virtio_pci_create_if (vlib_main_t *vm, virtio_pci_create_if_args_t *args)
int	virtio_pci_delete_if (vlib_main_t *vm, virtio_if_t *vif)
int	virtio_pci_enable_disable_offloads (vlib_main_t *vm, virtio_if_t *vif, int gso_enabled, int checksum_offload_enabled, int offloads_disabled)

Variables
static pci_device_id_t	virtio_pci_device_ids []

Macro Definition Documentation

PCI_CAP_ID_MSIX

#define PCI_CAP_ID_MSIX   0x11

Definition at line 35 of file pci.c.

PCI_CAP_ID_VNDR

#define PCI_CAP_ID_VNDR   0x09

Definition at line 34 of file pci.c.

PCI_CAPABILITY_LIST

#define PCI_CAPABILITY_LIST   0x34

Definition at line 33 of file pci.c.

PCI_CONFIG_SIZE

#define PCI_CONFIG_SIZE

(

vif

)

Value:

((vif->msix_enabled == VIRTIO_MSIX_ENABLED) ? \
  24 : 20)

Definition at line 39 of file pci.c.

PCI_DEVICE_ID_VIRTIO_NIC

#define PCI_DEVICE_ID_VIRTIO_NIC   0x1000

Definition at line 29 of file pci.c.

PCI_DEVICE_ID_VIRTIO_NIC_MODERN

#define PCI_DEVICE_ID_VIRTIO_NIC_MODERN   0x1041

Definition at line 31 of file pci.c.

PCI_MSIX_ENABLE

#define PCI_MSIX_ENABLE   0x8000

Definition at line 37 of file pci.c.

PCI_VENDOR_ID_VIRTIO

#define PCI_VENDOR_ID_VIRTIO   0x1af4

Definition at line 28 of file pci.c.

Function Documentation

debug_device_config_space()

void debug_device_config_space ( vlib_main_t *  vm, virtio_if_t *  vif  )

inline

Definition at line 407 of file pci.c.

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device_status()

void device_status ( vlib_main_t *  vm, virtio_if_t *  vif  )

inline

Definition at line 379 of file pci.c.

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virtio_negotiate_features()

static void virtio_negotiate_features ( vlib_main_t *  vm, virtio_if_t *  vif, u64  req_features  )

static

Definition at line 850 of file pci.c.

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virtio_pci_control_vring_init()

clib_error_t* virtio_pci_control_vring_init	(	vlib_main_t *	vm,
		virtio_if_t *	vif,
		u16	queue_num
	)

Definition at line 726 of file pci.c.

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virtio_pci_create_if()

void virtio_pci_create_if	(	vlib_main_t *	vm,
		virtio_pci_create_if_args_t *	args
	)

Definition at line 1234 of file pci.c.

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virtio_pci_delete_if()

int virtio_pci_delete_if	(	vlib_main_t *	vm,
		virtio_if_t *	vif
	)

Definition at line 1420 of file pci.c.

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virtio_pci_device_init()

static clib_error_t* virtio_pci_device_init ( vlib_main_t *  vm, virtio_if_t *  vif, virtio_pci_create_if_args_t *  args  )

static

Definition at line 1039 of file pci.c.

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virtio_pci_disable_offload()

static int virtio_pci_disable_offload ( vlib_main_t *  vm, virtio_if_t *  vif  )

static

Definition at line 576 of file pci.c.

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virtio_pci_enable_checksum_offload()

static int virtio_pci_enable_checksum_offload ( vlib_main_t *  vm, virtio_if_t *  vif  )

static

Definition at line 596 of file pci.c.

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virtio_pci_enable_disable_offloads()

int virtio_pci_enable_disable_offloads	(	vlib_main_t *	vm,
		virtio_if_t *	vif,
		int	gso_enabled,
		int	checksum_offload_enabled,
		int	offloads_disabled
	)

Definition at line 1507 of file pci.c.

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virtio_pci_enable_gso()

static int virtio_pci_enable_gso ( vlib_main_t *  vm, virtio_if_t *  vif  )

static

Definition at line 617 of file pci.c.

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virtio_pci_enable_multiqueue()

static int virtio_pci_enable_multiqueue ( vlib_main_t *  vm, virtio_if_t *  vif, u16  num_queues  )

static

Definition at line 699 of file pci.c.

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virtio_pci_flag_change()

static u32 virtio_pci_flag_change ( vnet_main_t *  vnm, vnet_hw_interface_t *  hw, u32  flags  )

static

Definition at line 251 of file pci.c.

virtio_pci_get_mac()

static u32 virtio_pci_get_mac ( vlib_main_t *  vm, virtio_if_t *  vif  )

static

Definition at line 291 of file pci.c.

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virtio_pci_get_max_virtqueue_pairs()

static clib_error_t* virtio_pci_get_max_virtqueue_pairs ( vlib_main_t *  vm, virtio_if_t *  vif  )

static

Definition at line 258 of file pci.c.

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virtio_pci_irq_config_handler()

static void virtio_pci_irq_config_handler ( vlib_main_t *  vm, vlib_pci_dev_handle_t  h, u16  line  )

static

Definition at line 331 of file pci.c.

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virtio_pci_irq_handler()

static void virtio_pci_irq_handler ( vlib_main_t *  vm, vlib_pci_dev_handle_t  h  )

static

Definition at line 353 of file pci.c.

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virtio_pci_irq_queue_handler()

static void virtio_pci_irq_queue_handler ( vlib_main_t *  vm, vlib_pci_dev_handle_t  h, u16  line  )

static

Definition at line 317 of file pci.c.

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virtio_pci_is_link_up()

static u16 virtio_pci_is_link_up ( vlib_main_t *  vm, virtio_if_t *  vif  )

static

Definition at line 303 of file pci.c.

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virtio_pci_legacy_del_queue()

static void virtio_pci_legacy_del_queue ( vlib_main_t *  vm, virtio_if_t *  vif, u16  queue_id  )

static

Definition at line 208 of file pci.c.

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virtio_pci_legacy_get_guest_features()

static u32 virtio_pci_legacy_get_guest_features ( vlib_main_t *  vm, virtio_if_t *  vif  )

static

Definition at line 122 of file pci.c.

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virtio_pci_legacy_get_host_features()

static u64 virtio_pci_legacy_get_host_features ( vlib_main_t *  vm, virtio_if_t *  vif  )

static

Definition at line 113 of file pci.c.

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virtio_pci_legacy_get_isr()

static u8 virtio_pci_legacy_get_isr ( vlib_main_t *  vm, virtio_if_t *  vif  )

static

Definition at line 171 of file pci.c.

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virtio_pci_legacy_get_queue_num()

static u16 virtio_pci_legacy_get_queue_num ( vlib_main_t *  vm, virtio_if_t *  vif, u16  queue_id  )

static

Definition at line 179 of file pci.c.

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virtio_pci_legacy_get_status()

static u8 virtio_pci_legacy_get_status ( vlib_main_t *  vm, virtio_if_t *  vif  )

static

Definition at line 148 of file pci.c.

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virtio_pci_legacy_notify_queue()

void virtio_pci_legacy_notify_queue ( vlib_main_t *  vm, virtio_if_t *  vif, u16  queue_id  )

inline

Definition at line 218 of file pci.c.

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virtio_pci_legacy_read_config()

static void virtio_pci_legacy_read_config ( vlib_main_t *  vm, virtio_if_t *  vif, void *  dst, int  len, u32  addr  )

static

Definition at line 53 of file pci.c.

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virtio_pci_legacy_reset()

static u8 virtio_pci_legacy_reset ( vlib_main_t *  vm, virtio_if_t *  vif  )

static

Definition at line 164 of file pci.c.

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virtio_pci_legacy_set_config_irq()

static u16 virtio_pci_legacy_set_config_irq ( vlib_main_t *  vm, virtio_if_t *  vif, u16  vec  )

static

Definition at line 227 of file pci.c.

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virtio_pci_legacy_set_guest_features()

static u32 virtio_pci_legacy_set_guest_features ( vlib_main_t *  vm, virtio_if_t *  vif, u64  features  )

static

Definition at line 132 of file pci.c.

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virtio_pci_legacy_set_queue_irq()

static u16 virtio_pci_legacy_set_queue_irq ( vlib_main_t *  vm, virtio_if_t *  vif, u16  vec, u16  queue_id  )

static

Definition at line 238 of file pci.c.

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virtio_pci_legacy_set_status()

static void virtio_pci_legacy_set_status ( vlib_main_t *  vm, virtio_if_t *  vif, u8  status  )

static

Definition at line 156 of file pci.c.

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virtio_pci_legacy_setup_queue()

static int virtio_pci_legacy_setup_queue ( vlib_main_t *  vm, virtio_if_t *  vif, u16  queue_id, void *  p  )

static

Definition at line 191 of file pci.c.

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virtio_pci_legacy_write_config()

static void virtio_pci_legacy_write_config ( vlib_main_t *  vm, virtio_if_t *  vif, void *  src, int  len, u32  addr  )

static

Definition at line 83 of file pci.c.

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virtio_pci_offloads()

static int virtio_pci_offloads ( vlib_main_t *  vm, virtio_if_t *  vif, int  gso_enabled, int  csum_offload_enabled  )

static

Definition at line 638 of file pci.c.

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virtio_pci_queue_size_valid()

static u8 virtio_pci_queue_size_valid ( u16  qsz )

static

Definition at line 716 of file pci.c.

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virtio_pci_read_caps()

clib_error_t* virtio_pci_read_caps	(	vlib_main_t *	vm,
		virtio_if_t *	vif
	)

Definition at line 939 of file pci.c.

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virtio_pci_read_device_feature()

void virtio_pci_read_device_feature	(	vlib_main_t *	vm,
		virtio_if_t *	vif
	)

Definition at line 900 of file pci.c.

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virtio_pci_reset_device()

int virtio_pci_reset_device	(	vlib_main_t *	vm,
		virtio_if_t *	vif
	)

Definition at line 906 of file pci.c.

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virtio_pci_send_ctrl_msg()

static int virtio_pci_send_ctrl_msg ( vlib_main_t *  vm, virtio_if_t *  vif, struct virtio_ctrl_msg *  data, u32  len  )

static

Definition at line 480 of file pci.c.

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virtio_pci_set_mac()

static void virtio_pci_set_mac ( vlib_main_t *  vm, virtio_if_t *  vif  )

static

Definition at line 284 of file pci.c.

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virtio_pci_vring_init()

clib_error_t* virtio_pci_vring_init	(	vlib_main_t *	vm,
		virtio_if_t *	vif,
		u16	queue_num
	)

Definition at line 778 of file pci.c.

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Variable Documentation

virtio_pci_device_ids

pci_device_id_t virtio_pci_device_ids[]

static

Initial value:

= {
  {
   .vendor_id = PCI_VENDOR_ID_VIRTIO,
   .device_id = PCI_DEVICE_ID_VIRTIO_NIC},
  {
   .vendor_id = PCI_VENDOR_ID_VIRTIO,
   .device_id = PCI_DEVICE_ID_VIRTIO_NIC_MODERN},
  {0},
}

Definition at line 42 of file pci.c.