Data Fields | |
| device_t | dev |
| struct ifmedia | sc_media |
| struct ifnet * | xnb_ifp |
| unsigned | carrier |
| uint8_t | mac [ETHER_ADDR_LEN] |
| int | abi |
| The netif protocol abi in effect. More... | |
| char * | bridge |
| evtchn_port_t | evtchn |
| long | handle |
| xen_intr_handle_t | xen_intr_handle |
| domid_t | otherend_id |
| Cached value of the front-end's domain id. More... | |
| uint8_t | can_sg |
| uint8_t | gso |
| uint8_t | gso_prefix |
| uint8_t | ip_csum |
| gnttab_copy_table | rx_gnttab |
| gnttab_copy_table | tx_gnttab |
| struct resource * | pseudo_phys_res |
| int | pseudo_phys_res_id |
| struct xnb_ring_config | ring_configs [XNB_NUM_RING_TYPES] |
| vm_offset_t | kva |
| uint64_t | gnt_base_addr |
| xnb_flag_t | flags |
| struct mtx | rx_lock |
| struct mtx | sc_lock |
| struct mtx | tx_lock |
| int | kva_size |
| char | if_name [IFNAMSIZ] |
Detailed Description
Field Documentation
◆ abi
| int xnb_softc::abi |
The netif protocol abi in effect.
There are situations where the back and front ends can have a different, native abi (e.g. intel x86_64 and 32bit x86 domains on the same machine). The back-end always accommodates the front-end's native abi. That value is pulled from the XenStore and recorded here.
◆ bridge
| char* xnb_softc::bridge |
Name of the bridge to which this VIF is connected, if any This field is dynamically allocated by xenbus and must be free()ed when no longer needed
Definition at line 425 of file netback.c.
Referenced by xnb_collect_xenstore_info(), and xnb_disconnect().
◆ can_sg
| uint8_t xnb_softc::can_sg |
Undocumented frontend feature. Has something to do with scatter/gather IO
Definition at line 449 of file netback.c.
Referenced by xnb_collect_xenstore_info().
◆ carrier
| unsigned xnb_softc::carrier |
Our own private carrier state
Definition at line 402 of file netback.c.
Referenced by create_netdev(), xnb_connect(), xnb_shutdown(), and xnb_start_locked().
◆ dev
| device_t xnb_softc::dev |
NewBus device corresponding to this instance.
Definition at line 391 of file netback.c.
Referenced by create_netdev(), xnb_alloc_communication_mem(), xnb_attach(), xnb_attach_failed(), xnb_collect_xenstore_info(), xnb_connect(), xnb_connect_comms(), xnb_connect_ring(), xnb_detach(), xnb_free_communication_mem(), xnb_frontend_changed(), xnb_publish_backend_info(), xnb_setup_sysctl(), and xnb_shutdown().
◆ evtchn
| evtchn_port_t xnb_softc::evtchn |
The interrupt driven even channel used to signal ring events.
Definition at line 428 of file netback.c.
Referenced by xnb_collect_xenstore_info(), and xnb_connect_comms().
◆ flags
| xnb_flag_t xnb_softc::flags |
Various configuration and state bit flags.
Definition at line 492 of file netback.c.
Referenced by xnb_connect(), xnb_connect_comms(), xnb_disconnect(), and xnb_shutdown().
◆ gnt_base_addr
| uint64_t xnb_softc::gnt_base_addr |
Pseudo-physical address corresponding to kva.
Definition at line 489 of file netback.c.
Referenced by xnb_alloc_communication_mem(), xnb_connect_ring(), and xnb_free_communication_mem().
◆ gso
| uint8_t xnb_softc::gso |
Undocumented frontend feature
Definition at line 451 of file netback.c.
Referenced by xnb_collect_xenstore_info().
◆ gso_prefix
| uint8_t xnb_softc::gso_prefix |
Undocumented frontend feature
Definition at line 453 of file netback.c.
Referenced by xnb_collect_xenstore_info().
◆ handle
| long xnb_softc::handle |
Xen device handle.
Definition at line 431 of file netback.c.
Referenced by create_netdev(), and xnb_collect_xenstore_info().
◆ if_name
| char xnb_softc::if_name[IFNAMSIZ] |
◆ ip_csum
| uint8_t xnb_softc::ip_csum |
Can checksum TCP/UDP over IPv4
Definition at line 455 of file netback.c.
Referenced by xnb_collect_xenstore_info().
◆ kva
| vm_offset_t xnb_softc::kva |
Global pool of kva used for mapping remote domain ring and I/O transaction data.
Definition at line 486 of file netback.c.
Referenced by xnb_alloc_communication_mem(), xnb_connect_ring(), and xnb_free_communication_mem().
◆ kva_size
| int xnb_softc::kva_size |
The size of the global kva pool.
Definition at line 504 of file netback.c.
Referenced by xnb_alloc_communication_mem().
◆ mac
| uint8_t xnb_softc::mac[ETHER_ADDR_LEN] |
◆ otherend_id
| domid_t xnb_softc::otherend_id |
Cached value of the front-end's domain id.
This value is used at once for each mapped page in a transaction. We cache it to avoid incuring the cost of an ivar access every time this is needed.
Definition at line 443 of file netback.c.
Referenced by xnb_attach(), xnb_connect_comms(), xnb_connect_ring(), xnb_intr(), and xnb_start_locked().
◆ pseudo_phys_res
| struct resource* xnb_softc::pseudo_phys_res |
Resource representing allocated physical address space associated with our per-instance kva region.
Definition at line 474 of file netback.c.
Referenced by xnb_alloc_communication_mem(), and xnb_free_communication_mem().
◆ pseudo_phys_res_id
| int xnb_softc::pseudo_phys_res_id |
Resource id for allocated physical address space.
Definition at line 477 of file netback.c.
Referenced by xnb_alloc_communication_mem(), and xnb_free_communication_mem().
◆ ring_configs
| struct xnb_ring_config xnb_softc::ring_configs[XNB_NUM_RING_TYPES] |
Ring mapping and interrupt configuration data.
Definition at line 480 of file netback.c.
Referenced by xnb_alloc_communication_mem(), xnb_attach(), xnb_collect_xenstore_info(), xnb_connect_ring(), xnb_disconnect(), xnb_dump_rings(), xnb_intr(), and xnb_start_locked().
◆ rx_gnttab
| gnttab_copy_table xnb_softc::rx_gnttab |
Preallocated grant table copy descriptor for RX operations. Access must be protected by rx_lock
Definition at line 462 of file netback.c.
Referenced by xnb_start_locked().
◆ rx_lock
| struct mtx xnb_softc::rx_lock |
Mutex protecting per-instance data in the receive path.
Definition at line 495 of file netback.c.
Referenced by create_netdev(), xnb_detach(), xnb_disconnect(), and xnb_start().
◆ sc_lock
| struct mtx xnb_softc::sc_lock |
Mutex protecting per-instance data in the softc structure.
Definition at line 498 of file netback.c.
Referenced by create_netdev(), xnb_detach(), xnb_disconnect(), xnb_frontend_changed(), xnb_ifinit(), xnb_ifinit_locked(), xnb_ioctl(), xnb_shutdown(), and xnb_stop().
◆ sc_media
| struct ifmedia xnb_softc::sc_media |
Generic network media state
Definition at line 396 of file netback.c.
Referenced by create_netdev(), and xnb_ioctl().
◆ tx_gnttab
| gnttab_copy_table xnb_softc::tx_gnttab |
Preallocated grant table copy descriptor for TX operations. Access must be protected by tx_lock
Definition at line 468 of file netback.c.
Referenced by xnb_intr().
◆ tx_lock
| struct mtx xnb_softc::tx_lock |
Mutex protecting per-instance data in the transmit path.
Definition at line 501 of file netback.c.
Referenced by create_netdev(), xnb_detach(), xnb_disconnect(), and xnb_intr().
◆ xen_intr_handle
| xen_intr_handle_t xnb_softc::xen_intr_handle |
Handle to the communication ring event channel.
Definition at line 434 of file netback.c.
Referenced by xnb_connect_comms(), xnb_disconnect(), xnb_intr(), and xnb_start_locked().
◆ xnb_ifp
| struct ifnet* xnb_softc::xnb_ifp |
Media carrier info
Definition at line 399 of file netback.c.
Referenced by create_netdev(), xnb_ifinit_locked(), xnb_intr(), xnb_shutdown(), and xnb_stop().
The documentation for this struct was generated from the following file:
- dev/xen/netback/netback.c
