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Data Structures
struct	virtio_pci_cap_t

struct	virtio_pci_notify_cap_t

struct	virtio_pci_common_cfg_t

struct	vring_desc_t

struct	vring_avail_t

struct	vring_used_elem_t

struct	vring_used_t

struct	virtio_pci_create_if_args_t

Macros
#define	VIRTIO_PCI_ABI_VERSION 0

#define	VIRTIO_PCI_HOST_FEATURES 0 /* host's supported features (32bit, RO) */

#define	VIRTIO_PCI_GUEST_FEATURES 4 /* guest's supported features (32, RW) */

#define	VIRTIO_PCI_QUEUE_PFN 8 /* physical address of VQ (32, RW) */

#define	VIRTIO_PCI_QUEUE_NUM 12 /* number of ring entries (16, RO) */

#define	VIRTIO_PCI_QUEUE_SEL 14 /* current VQ selection (16, RW) */

#define	VIRTIO_PCI_QUEUE_NOTIFY 16 /* notify host regarding VQ (16, RW) */

#define	VIRTIO_PCI_STATUS 18 /* device status register (8, RW) */

#define	VIRTIO_PCI_ISR

#define	VIRTIO_MSI_CONFIG_VECTOR 20 /* configuration change vector (16, RW) */

#define	VIRTIO_MSI_QUEUE_VECTOR

#define	VIRTIO_PCI_ISR_INTR 0x1

#define	VIRTIO_PCI_ISR_CONFIG 0x2

#define	VIRTIO_ID_NETWORK 0x01

#define	foreach_virtio_config_status_flags

#define	foreach_virtio_net_feature_flags

#define	VIRTIO_NET_F_MTU 3

#define	VIRTIO_NET_S_LINK_UP 1 /* Link is up */

#define	VIRTIO_NET_S_ANNOUNCE 2 /* Announcement is needed */

#define	VIRTIO_PCI_CAP_COMMON_CFG 1

#define	VIRTIO_PCI_CAP_NOTIFY_CFG 2

#define	VIRTIO_PCI_CAP_ISR_CFG 3

#define	VIRTIO_PCI_CAP_DEVICE_CFG 4

#define	VIRTIO_PCI_CAP_PCI_CFG 5

#define	VIRTIO_PCI_QUEUE_ADDR_SHIFT 12

#define	VIRTIO_PCI_VRING_ALIGN 4096

#define	virtio_log_debug(vim, vif, f, ...)

#define	virtio_log_warning(vim, vif, f, ...)

#define	virtio_log_error(vim, vif, f, ...)

Enumerations
enum	virtio_config_status_flags_t { foreach_virtio_config_status_flags }

enum	virtio_msix_status_t { VIRTIO_MSIX_NONE = 0, VIRTIO_MSIX_DISABLED = 1, VIRTIO_MSIX_ENABLED = 2 }

Functions
void	debug_device_config_space (vlib_main_t vm, virtio_if_t vif)

void	device_status (vlib_main_t vm, virtio_if_t vif)

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 ad)

Macro Definition Documentation

◆ foreach_virtio_config_status_flags

#define foreach_virtio_config_status_flags

Value:

_ (VIRTIO_CONFIG_STATUS_RESET, 0x00)            \
  _ (VIRTIO_CONFIG_STATUS_ACK, 0x01)            \
  _ (VIRTIO_CONFIG_STATUS_DRIVER, 0x02)         \
  _ (VIRTIO_CONFIG_STATUS_DRIVER_OK, 0x04)      \
  _ (VIRTIO_CONFIG_STATUS_FEATURES_OK, 0x08)    \
  _ (VIRTIO_CONFIG_STATUS_DEVICE_NEEDS_RESET, 0x40) \
  _ (VIRTIO_CONFIG_STATUS_FAILED, 0x80)

Definition at line 54 of file pci.h.

◆ foreach_virtio_net_feature_flags

#define foreach_virtio_net_feature_flags

Value:

_ (VIRTIO_NET_F_CSUM, 0)      /* Host handles pkts w/ partial csum */ \
  _ (VIRTIO_NET_F_GUEST_CSUM, 1) /* Guest handles pkts w/ partial csum */ \
  _ (VIRTIO_NET_F_CTRL_GUEST_OFFLOADS, 2) /* Dynamic offload configuration. */ \
  _ (VIRTIO_NET_F_MTU, 3)       /* Initial MTU advice. */ \
  _ (VIRTIO_NET_F_MAC, 5)       /* Host has given MAC address. */ \
  _ (VIRTIO_NET_F_GSO, 6)       /* Host handles pkts w/ any GSO. */ \
  _ (VIRTIO_NET_F_GUEST_TSO4, 7)        /* Guest can handle TSOv4 in. */ \
  _ (VIRTIO_NET_F_GUEST_TSO6, 8)        /* Guest can handle TSOv6 in. */ \
  _ (VIRTIO_NET_F_GUEST_ECN, 9) /* Guest can handle TSO[6] w/ ECN in. */ \
  _ (VIRTIO_NET_F_GUEST_UFO, 10)        /* Guest can handle UFO in. */ \
  _ (VIRTIO_NET_F_HOST_TSO4, 11)        /* Host can handle TSOv4 in. */ \
  _ (VIRTIO_NET_F_HOST_TSO6, 12)        /* Host can handle TSOv6 in. */ \
  _ (VIRTIO_NET_F_HOST_ECN, 13) /* Host can handle TSO[6] w/ ECN in. */ \
  _ (VIRTIO_NET_F_HOST_UFO, 14) /* Host can handle UFO in. */ \
  _ (VIRTIO_NET_F_MRG_RXBUF, 15)        /* Host can merge receive buffers. */ \
  _ (VIRTIO_NET_F_STATUS, 16)   /* virtio_net_config.status available */ \
  _ (VIRTIO_NET_F_CTRL_VQ, 17)  /* Control channel available */ \
  _ (VIRTIO_NET_F_CTRL_RX, 18)  /* Control channel RX mode support */ \
  _ (VIRTIO_NET_F_CTRL_VLAN, 19)        /* Control channel VLAN filtering */ \
  _ (VIRTIO_NET_F_CTRL_RX_EXTRA, 20)    /* Extra RX mode control support */ \
  _ (VIRTIO_NET_F_GUEST_ANNOUNCE, 21)   /* Guest can announce device on the network */ \
  _ (VIRTIO_NET_F_MQ, 22)               /* Device supports Receive Flow Steering */ \
  _ (VIRTIO_NET_F_CTRL_MAC_ADDR, 23)    /* Set MAC address */ \
  _ (VIRTIO_F_NOTIFY_ON_EMPTY, 24) \
  _ (VHOST_F_LOG_ALL, 26)      /* Log all write descriptors */ \
  _ (VIRTIO_F_ANY_LAYOUT, 27)  /* Can the device handle any descripor layout */ \
  _ (VIRTIO_RING_F_INDIRECT_DESC, 28)   /* Support indirect buffer descriptors */ \
  _ (VIRTIO_RING_F_EVENT_IDX, 29)       /* The Guest publishes the used index for which it expects an interrupt \
 * at the end of the avail ring. Host should ignore the avail->flags field. */ \
/* The Host publishes the avail index for which it expects a kick \
 * at the end of the used ring. Guest should ignore the used->flags field. */ \
  _ (VHOST_USER_F_PROTOCOL_FEATURES, 30)

Definition at line 70 of file pci.h.

◆ VIRTIO_ID_NETWORK

#define VIRTIO_ID_NETWORK 0x01

Definition at line 51 of file pci.h.

◆ virtio_log_debug

#define virtio_log_debug	(	vim,
		vif,
		f,
		...
	)

Value:

{                                                               \
  vlib_log(VLIB_LOG_LEVEL_DEBUG, vim->log_default, "%U: " f,    \
           format_vlib_pci_addr, &vif->pci_addr,                \
           ##__VA_ARGS__);                                      \
};

Definition at line 123 of file pci.h.

◆ virtio_log_error

#define virtio_log_error	(	vim,
		vif,
		f,
		...
	)

Value:

{                                                               \
  vlib_log(VLIB_LOG_LEVEL_ERR, vim->log_default, "%U: " f,      \
           format_vlib_pci_addr, &vif->pci_addr,                \
           ##__VA_ARGS__);                                      \
};

Definition at line 137 of file pci.h.

◆ virtio_log_warning

#define virtio_log_warning	(	vim,
		vif,
		f,
		...
	)

Value:

{                                                               \
  vlib_log(VLIB_LOG_LEVEL_WARNING, vim->log_default, "%U: " f,  \
           format_vlib_pci_addr, &vif->pci_addr,                \
           ##__VA_ARGS__);                                      \
};

Definition at line 130 of file pci.h.

◆ VIRTIO_MSI_CONFIG_VECTOR

#define VIRTIO_MSI_CONFIG_VECTOR 20 /* configuration change vector (16, RW) */

Definition at line 35 of file pci.h.

◆ VIRTIO_MSI_QUEUE_VECTOR

#define VIRTIO_MSI_QUEUE_VECTOR

Value:

22 /* vector for selected VQ notifications

(16, RW) */

Definition at line 36 of file pci.h.

◆ VIRTIO_NET_F_MTU

#define VIRTIO_NET_F_MTU 3

Definition at line 104 of file pci.h.

◆ VIRTIO_NET_S_ANNOUNCE

#define VIRTIO_NET_S_ANNOUNCE 2 /* Announcement is needed */

Definition at line 106 of file pci.h.

◆ VIRTIO_NET_S_LINK_UP

#define VIRTIO_NET_S_LINK_UP 1 /* Link is up */

Definition at line 105 of file pci.h.

◆ VIRTIO_PCI_ABI_VERSION

#define VIRTIO_PCI_ABI_VERSION 0

Definition at line 20 of file pci.h.

◆ VIRTIO_PCI_CAP_COMMON_CFG

#define VIRTIO_PCI_CAP_COMMON_CFG 1

Definition at line 109 of file pci.h.

◆ VIRTIO_PCI_CAP_DEVICE_CFG

#define VIRTIO_PCI_CAP_DEVICE_CFG 4

Definition at line 115 of file pci.h.

◆ VIRTIO_PCI_CAP_ISR_CFG

#define VIRTIO_PCI_CAP_ISR_CFG 3

Definition at line 113 of file pci.h.

◆ VIRTIO_PCI_CAP_NOTIFY_CFG

#define VIRTIO_PCI_CAP_NOTIFY_CFG 2

Definition at line 111 of file pci.h.

◆ VIRTIO_PCI_CAP_PCI_CFG

#define VIRTIO_PCI_CAP_PCI_CFG 5

Definition at line 117 of file pci.h.

◆ VIRTIO_PCI_GUEST_FEATURES

#define VIRTIO_PCI_GUEST_FEATURES 4 /* guest's supported features (32, RW) */

Definition at line 26 of file pci.h.

◆ VIRTIO_PCI_HOST_FEATURES

#define VIRTIO_PCI_HOST_FEATURES 0 /* host's supported features (32bit, RO) */

Definition at line 25 of file pci.h.

◆ VIRTIO_PCI_ISR

#define VIRTIO_PCI_ISR

Value:

19 /* interrupt status register, reading

* also clears the register (8, RO) */

Definition at line 32 of file pci.h.

◆ VIRTIO_PCI_ISR_CONFIG

#define VIRTIO_PCI_ISR_CONFIG 0x2

Definition at line 48 of file pci.h.

◆ VIRTIO_PCI_ISR_INTR

#define VIRTIO_PCI_ISR_INTR 0x1

Definition at line 46 of file pci.h.

◆ VIRTIO_PCI_QUEUE_ADDR_SHIFT

#define VIRTIO_PCI_QUEUE_ADDR_SHIFT 12

Definition at line 119 of file pci.h.

◆ VIRTIO_PCI_QUEUE_NOTIFY

#define VIRTIO_PCI_QUEUE_NOTIFY 16 /* notify host regarding VQ (16, RW) */

Definition at line 30 of file pci.h.

◆ VIRTIO_PCI_QUEUE_NUM

#define VIRTIO_PCI_QUEUE_NUM 12 /* number of ring entries (16, RO) */

Definition at line 28 of file pci.h.

◆ VIRTIO_PCI_QUEUE_PFN

#define VIRTIO_PCI_QUEUE_PFN 8 /* physical address of VQ (32, RW) */

Definition at line 27 of file pci.h.

◆ VIRTIO_PCI_QUEUE_SEL

#define VIRTIO_PCI_QUEUE_SEL 14 /* current VQ selection (16, RW) */

Definition at line 29 of file pci.h.

◆ VIRTIO_PCI_STATUS

#define VIRTIO_PCI_STATUS 18 /* device status register (8, RW) */

Definition at line 31 of file pci.h.

◆ VIRTIO_PCI_VRING_ALIGN

#define VIRTIO_PCI_VRING_ALIGN 4096

Definition at line 121 of file pci.h.

Enumeration Type Documentation

◆ virtio_config_status_flags_t

enum virtio_config_status_flags_t

Enumerator
foreach_virtio_config_status_flags

Definition at line 63 of file pci.h.

◆ virtio_msix_status_t

enum virtio_msix_status_t

Enumerator
VIRTIO_MSIX_NONE
VIRTIO_MSIX_DISABLED
VIRTIO_MSIX_ENABLED

Definition at line 144 of file pci.h.

Function Documentation

◆ debug_device_config_space()

void debug_device_config_space	(	vlib_main_t *	vm,
		virtio_if_t *	vif
	)

inline

Definition at line 385 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 357 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 989 of file pci.c.

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◆ virtio_pci_delete_if()

int virtio_pci_delete_if	(	vlib_main_t *	vm,
		virtio_if_t *	ad
	)

Definition at line 1186 of file pci.c.

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Data Structures

Macros

Enumerations

Functions

Macro Definition Documentation

◆ foreach_virtio_config_status_flags

◆ foreach_virtio_net_feature_flags

◆ VIRTIO_ID_NETWORK

◆ virtio_log_debug

◆ virtio_log_error

◆ virtio_log_warning

◆ VIRTIO_MSI_CONFIG_VECTOR

◆ VIRTIO_MSI_QUEUE_VECTOR

◆ VIRTIO_NET_F_MTU

◆ VIRTIO_NET_S_ANNOUNCE

◆ VIRTIO_NET_S_LINK_UP

◆ VIRTIO_PCI_ABI_VERSION

◆ VIRTIO_PCI_CAP_COMMON_CFG

◆ VIRTIO_PCI_CAP_DEVICE_CFG

◆ VIRTIO_PCI_CAP_ISR_CFG

◆ VIRTIO_PCI_CAP_NOTIFY_CFG

◆ VIRTIO_PCI_CAP_PCI_CFG

◆ VIRTIO_PCI_GUEST_FEATURES

◆ VIRTIO_PCI_HOST_FEATURES

◆ VIRTIO_PCI_ISR

◆ VIRTIO_PCI_ISR_CONFIG

◆ VIRTIO_PCI_ISR_INTR

◆ VIRTIO_PCI_QUEUE_ADDR_SHIFT

◆ VIRTIO_PCI_QUEUE_NOTIFY

◆ VIRTIO_PCI_QUEUE_NUM

◆ VIRTIO_PCI_QUEUE_PFN

◆ VIRTIO_PCI_QUEUE_SEL

◆ VIRTIO_PCI_STATUS

◆ VIRTIO_PCI_VRING_ALIGN

Enumeration Type Documentation

◆ virtio_config_status_flags_t

◆ virtio_msix_status_t

Function Documentation

◆ debug_device_config_space()

◆ device_status()

◆ virtio_pci_create_if()

◆ virtio_pci_delete_if()