device.c File Reference

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Data Structures
struct	virtio_tx_trace_t

Macros
#define	VIRTIO_TX_MAX_CHAIN_LEN   127
#define	foreach_virtio_tx_func_error

Enumerations
enum	virtio_tx_func_error_t { VIRTIO_TX_N_ERROR }

Functions
static u8 *	format_virtio_device (u8 *s, va_list *args)
static u8 *	format_virtio_tx_trace (u8 *s, va_list *va)
static void	virtio_tx_trace (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_buffer_t *b0, u32 bi, int is_tun)
static void	virtio_interface_drop_inline (vlib_main_t *vm, virtio_if_t *vif, uword node_index, u32 *buffers, u16 n, virtio_tx_func_error_t error)
static void	virtio_memset_ring_u32 (u32 *ring, u32 start, u32 ring_size, u32 n_buffers)
static void	virtio_free_used_device_desc_split (vlib_main_t *vm, virtio_vring_t *vring, uword node_index)
static void	virtio_free_used_device_desc_packed (vlib_main_t *vm, virtio_vring_t *vring, uword node_index)
static void	virtio_free_used_device_desc (vlib_main_t *vm, virtio_vring_t *vring, uword node_index, int packed)
static void	set_checksum_offsets (vlib_buffer_t *b, virtio_net_hdr_v1_t *hdr, const int is_l2)
static void	set_gso_offsets (vlib_buffer_t *b, virtio_net_hdr_v1_t *hdr, const int is_l2)
static u16	add_buffer_to_slot (vlib_main_t *vm, vlib_node_runtime_t *node, virtio_if_t *vif, virtio_vring_t *vring, u32 bi, u16 free_desc_count, u16 avail, u16 next, u16 mask, int hdr_sz, int do_gso, int csum_offload, int is_pci, int is_tun, int is_indirect, int is_any_layout)
static u16	add_buffer_to_slot_packed (vlib_main_t *vm, vlib_node_runtime_t *node, virtio_if_t *vif, virtio_vring_t *vring, u32 bi, u16 next, int hdr_sz, int do_gso, int csum_offload, int is_pci, int is_tun, int is_indirect, int is_any_layout)
static uword	virtio_interface_tx_packed_gso_inline (vlib_main_t *vm, vlib_node_runtime_t *node, virtio_if_t *vif, virtio_if_type_t type, virtio_vring_t *vring, u32 *buffers, u16 n_left, const int do_gso, const int csum_offload)
static void	virtio_find_free_desc (virtio_vring_t *vring, u16 size, u16 mask, u16 req, u16 next, u32 *first_free_desc_index, u16 *free_desc_count)
static u16	virtio_interface_tx_split_gso_inline (vlib_main_t *vm, vlib_node_runtime_t *node, virtio_if_t *vif, virtio_if_type_t type, virtio_vring_t *vring, u32 *buffers, u16 n_left, int do_gso, int csum_offload)
static u16	virtio_interface_tx_gso_inline (vlib_main_t *vm, vlib_node_runtime_t *node, virtio_if_t *vif, virtio_if_type_t type, virtio_vring_t *vring, u32 *buffers, u16 n_left, int packed, int do_gso, int csum_offload)
static u16	virtio_interface_tx_inline (vlib_main_t *vm, vlib_node_runtime_t *node, virtio_if_t *vif, virtio_vring_t *vring, virtio_if_type_t type, u32 *buffers, u16 n_left, int packed)
VNET_DEVICE_CLASS_TX_FN()	virtio_device_class (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame)
static void	virtio_set_interface_next_node (vnet_main_t *vnm, u32 hw_if_index, u32 node_index)
static void	virtio_clear_hw_interface_counters (u32 instance)
static void	virtio_set_rx_interrupt (virtio_if_t *vif, virtio_vring_t *vring)
static void	virtio_set_rx_polling (virtio_if_t *vif, virtio_vring_t *vring)
static clib_error_t *	virtio_interface_rx_mode_change (vnet_main_t *vnm, u32 hw_if_index, u32 qid, vnet_hw_if_rx_mode mode)
static clib_error_t *	virtio_interface_admin_up_down (vnet_main_t *vnm, u32 hw_if_index, u32 flags)
static clib_error_t *	virtio_subif_add_del_function (vnet_main_t *vnm, u32 hw_if_index, struct vnet_sw_interface_t *st, int is_add)
	VNET_DEVICE_CLASS (virtio_device_class)

Variables
static char *	virtio_tx_func_error_strings []

Macro Definition Documentation

foreach_virtio_tx_func_error

#define foreach_virtio_tx_func_error

Value:

_(NO_FREE_SLOTS, "no free tx slots")           \
_(TRUNC_PACKET, "packet > buffer size -- truncated in tx ring") \
_(PENDING_MSGS, "pending msgs in tx ring") \
_(INDIRECT_DESC_ALLOC_FAILED, "indirect descriptor allocation failed - packet drop") \
_(OUT_OF_ORDER, "out-of-order buffers in used ring") \
_(GSO_PACKET_DROP, "gso disabled on itf  -- gso packet drop") \
_(CSUM_OFFLOAD_PACKET_DROP, "checksum offload disabled on itf -- csum offload packet drop")

Definition at line 36 of file device.c.

VIRTIO_TX_MAX_CHAIN_LEN

#define VIRTIO_TX_MAX_CHAIN_LEN   127

Definition at line 34 of file device.c.

Enumeration Type Documentation

virtio_tx_func_error_t

enum virtio_tx_func_error_t

Enumerator
VIRTIO_TX_N_ERROR

Definition at line 45 of file device.c.

Function Documentation

add_buffer_to_slot()

static u16 add_buffer_to_slot ( vlib_main_t *  vm, vlib_node_runtime_t *  node, virtio_if_t *  vif, virtio_vring_t *  vring, u32  bi, u16  free_desc_count, u16  avail, u16  next, u16  mask, int  hdr_sz, int  do_gso, int  csum_offload, int  is_pci, int  is_tun, int  is_indirect, int  is_any_layout  )

static

Definition at line 377 of file device.c.

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add_buffer_to_slot_packed()

static u16 add_buffer_to_slot_packed ( vlib_main_t *  vm, vlib_node_runtime_t *  node, virtio_if_t *  vif, virtio_vring_t *  vring, u32  bi, u16  next, int  hdr_sz, int  do_gso, int  csum_offload, int  is_pci, int  is_tun, int  is_indirect, int  is_any_layout  )

static

Definition at line 584 of file device.c.

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format_virtio_device()

static u8* format_virtio_device ( u8 *  s, va_list *  args  )

static

Definition at line 60 of file device.c.

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format_virtio_tx_trace()

static u8* format_virtio_tx_trace ( u8 *  s, va_list *  va  )

static

Definition at line 84 of file device.c.

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set_checksum_offsets()

static void set_checksum_offsets ( vlib_buffer_t *  b, virtio_net_hdr_v1_t *  hdr, const int  is_l2  )

static

Definition at line 287 of file device.c.

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set_gso_offsets()

static void set_gso_offsets ( vlib_buffer_t *  b, virtio_net_hdr_v1_t *  hdr, const int  is_l2  )

static

Definition at line 337 of file device.c.

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virtio_clear_hw_interface_counters()

static void virtio_clear_hw_interface_counters ( u32  instance )

static

Definition at line 1095 of file device.c.

virtio_device_class()

VNET_DEVICE_CLASS_TX_FN() virtio_device_class	(	vlib_main_t *	vm,
		vlib_node_runtime_t *	node,
		vlib_frame_t *	frame
	)

Definition at line 1004 of file device.c.

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virtio_find_free_desc()

static void virtio_find_free_desc ( virtio_vring_t *  vring, u16  size, u16  mask, u16  req, u16  next, u32 *  first_free_desc_index, u16 *  free_desc_count  )

static

Definition at line 817 of file device.c.

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virtio_free_used_device_desc()

static void virtio_free_used_device_desc ( vlib_main_t *  vm, virtio_vring_t *  vring, uword  node_index, int  packed  )

static

Definition at line 276 of file device.c.

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virtio_free_used_device_desc_packed()

static void virtio_free_used_device_desc_packed ( vlib_main_t *  vm, virtio_vring_t *  vring, uword  node_index  )

static

Definition at line 235 of file device.c.

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virtio_free_used_device_desc_split()

static void virtio_free_used_device_desc_split ( vlib_main_t *  vm, virtio_vring_t *  vring, uword  node_index  )

static

Definition at line 169 of file device.c.

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virtio_interface_admin_up_down()

static clib_error_t* virtio_interface_admin_up_down ( vnet_main_t *  vnm, u32  hw_if_index, u32  flags  )

static

Definition at line 1166 of file device.c.

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virtio_interface_drop_inline()

static void virtio_interface_drop_inline ( vlib_main_t *  vm, virtio_if_t *  vif, uword  node_index, u32 *  buffers, u16  n, virtio_tx_func_error_t  error  )

static

Definition at line 141 of file device.c.

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virtio_interface_rx_mode_change()

static clib_error_t* virtio_interface_rx_mode_change ( vnet_main_t *  vnm, u32  hw_if_index, u32  qid, vnet_hw_if_rx_mode  mode  )

static

Definition at line 1119 of file device.c.

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virtio_interface_tx_gso_inline()

static u16 virtio_interface_tx_gso_inline ( vlib_main_t *  vm, vlib_node_runtime_t *  node, virtio_if_t *  vif, virtio_if_type_t  type, virtio_vring_t *  vring, u32 *  buffers, u16  n_left, int  packed, int  do_gso, int  csum_offload  )

static

Definition at line 962 of file device.c.

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virtio_interface_tx_inline()

static u16 virtio_interface_tx_inline ( vlib_main_t *  vm, vlib_node_runtime_t *  node, virtio_if_t *  vif, virtio_vring_t *  vring, virtio_if_type_t  type, u32 *  buffers, u16  n_left, int  packed  )

static

Definition at line 979 of file device.c.

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virtio_interface_tx_packed_gso_inline()

static uword virtio_interface_tx_packed_gso_inline ( vlib_main_t *  vm, vlib_node_runtime_t *  node, virtio_if_t *  vif, virtio_if_type_t  type, virtio_vring_t *  vring, u32 *  buffers, u16  n_left, const int  do_gso, const int  csum_offload  )

static

Definition at line 732 of file device.c.

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virtio_interface_tx_split_gso_inline()

static u16 virtio_interface_tx_split_gso_inline ( vlib_main_t *  vm, vlib_node_runtime_t *  node, virtio_if_t *  vif, virtio_if_type_t  type, virtio_vring_t *  vring, u32 *  buffers, u16  n_left, int  do_gso, int  csum_offload  )

static

Definition at line 853 of file device.c.

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virtio_memset_ring_u32()

static void virtio_memset_ring_u32 ( u32 *  ring, u32  start, u32  ring_size, u32  n_buffers  )

static

Definition at line 153 of file device.c.

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virtio_set_interface_next_node()

static void virtio_set_interface_next_node ( vnet_main_t *  vnm, u32  hw_if_index, u32  node_index  )

static

Definition at line 1075 of file device.c.

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virtio_set_rx_interrupt()

static void virtio_set_rx_interrupt ( virtio_if_t *  vif, virtio_vring_t *  vring  )

static

Definition at line 1101 of file device.c.

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virtio_set_rx_polling()

static void virtio_set_rx_polling ( virtio_if_t *  vif, virtio_vring_t *  vring  )

static

Definition at line 1110 of file device.c.

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virtio_subif_add_del_function()

static clib_error_t* virtio_subif_add_del_function ( vnet_main_t *  vnm, u32  hw_if_index, struct vnet_sw_interface_t *  st, int  is_add  )

static

Definition at line 1187 of file device.c.

virtio_tx_trace()

static void virtio_tx_trace ( vlib_main_t *  vm, vlib_node_runtime_t *  node, vlib_buffer_t *  b0, u32  bi, int  is_tun  )

static

Definition at line 105 of file device.c.

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VNET_DEVICE_CLASS()

VNET_DEVICE_CLASS

(

virtio_device_class

)

Variable Documentation

virtio_tx_func_error_strings

char* virtio_tx_func_error_strings[]

static

Initial value:

= {
#define _(n,s) 
  foreach_virtio_tx_func_error
 
}

Definition at line 53 of file device.c.