netback.c File Reference

#include "common.h"
#include <linux/kthread.h>
#include <linux/if_vlan.h>
#include <linux/udp.h>
#include <net/tcp.h>
#include <xen/xen.h>
#include <xen/events.h>
#include <xen/interface/memory.h>
#include <asm/xen/hypercall.h>
#include <asm/xen/page.h>

Go to the source code of this file.

Data Structures
struct	pending_tx_info
struct	netbk_rx_meta
union	page_ext
struct	xen_netbk
struct	netrx_pending_operations
struct	skb_cb_overlay

Macros
#define	MAX_PENDING_REQS   256
#define	INVALID_PENDING_IDX   0xFFFF
#define	MAX_BUFFER_OFFSET   PAGE_SIZE
#define	IDX_WIDTH   8
#define	GROUP_WIDTH   (BITS_PER_LONG - IDX_WIDTH)
#define	PKT_PROT_LEN

Typedefs
typedef unsigned int	pending_ring_idx_t

Functions
void	xen_netbk_add_xenvif (struct xenvif *vif)
void	xen_netbk_remove_xenvif (struct xenvif *vif)
int	xen_netbk_rx_ring_full (struct xenvif *vif)
int	xen_netbk_must_stop_queue (struct xenvif *vif)
unsigned int	xen_netbk_count_skb_slots (struct xenvif *vif, struct sk_buff *skb)
void	xen_netbk_queue_tx_skb (struct xenvif *vif, struct sk_buff *skb)
void	xen_netbk_schedule_xenvif (struct xenvif *vif)
void	xen_netbk_deschedule_xenvif (struct xenvif *vif)
void	xen_netbk_check_rx_xenvif (struct xenvif *vif)
void	xen_netbk_unmap_frontend_rings (struct xenvif *vif)
int	xen_netbk_map_frontend_rings (struct xenvif *vif, grant_ref_t tx_ring_ref, grant_ref_t rx_ring_ref)
	module_init (netback_init)
	MODULE_LICENSE ("Dual BSD/GPL")
	MODULE_ALIAS ("xen-backend:vif")

Macro Definition Documentation

#define GROUP_WIDTH   (BITS_PER_LONG - IDX_WIDTH)

Definition at line 74 of file netback.c.

#define IDX_WIDTH   8

Definition at line 73 of file netback.c.

#define INVALID_PENDING_IDX   0xFFFF

Definition at line 65 of file netback.c.

#define MAX_BUFFER_OFFSET   PAGE_SIZE

Definition at line 67 of file netback.c.

#define MAX_PENDING_REQS   256

Definition at line 62 of file netback.c.

#define PKT_PROT_LEN

Value:

(ETH_HLEN + \
             VLAN_HLEN + \
             sizeof(struct iphdr) + MAX_IPOPTLEN + \
             sizeof(struct tcphdr) + MAX_TCP_OPTION_SPACE)

Definition at line 217 of file netback.c.

Typedef Documentation

typedef unsigned int pending_ring_idx_t

Definition at line 54 of file netback.c.

Function Documentation

MODULE_ALIAS

(

"xen-backend:vif"

)

module_init

(

netback_init

)

MODULE_LICENSE

(

"Dual BSD/GPL"

)

void xen_netbk_add_xenvif

(

struct xenvif *

vif

)

Definition at line 121 of file netback.c.

void xen_netbk_check_rx_xenvif

(

struct xenvif *

vif

)

Definition at line 838 of file netback.c.

unsigned int xen_netbk_count_skb_slots	(	struct xenvif *	vif,
		struct sk_buff *	skb
	)

Definition at line 324 of file netback.c.

void xen_netbk_deschedule_xenvif

(

struct xenvif *

vif

)

Definition at line 830 of file netback.c.

int xen_netbk_map_frontend_rings	(	struct xenvif *	vif,
		grant_ref_t	tx_ring_ref,
		grant_ref_t	rx_ring_ref
	)

Definition at line 1621 of file netback.c.

int xen_netbk_must_stop_queue

(

struct xenvif *

vif

)

Definition at line 267 of file netback.c.

void xen_netbk_queue_tx_skb	(	struct xenvif *	vif,
		struct sk_buff *	skb
	)

Definition at line 757 of file netback.c.

void xen_netbk_remove_xenvif

(

struct xenvif *

vif

)

Definition at line 143 of file netback.c.

int xen_netbk_rx_ring_full

(

struct xenvif *

vif

)

Definition at line 258 of file netback.c.

void xen_netbk_schedule_xenvif

(

struct xenvif *

vif

)

Definition at line 807 of file netback.c.

void xen_netbk_unmap_frontend_rings

(

struct xenvif *

vif

)

Definition at line 1611 of file netback.c.