XENNET(4) | Device Drivers Manual (xen) | XENNET(4) |
xennet
—
xennet* at xenbus?
xennet
interface forms the frontend part of the
paravirtualized drivers used by Xen guest domains to have network
connectivity.
When the host domain is NetBSD, the
endpoint of the xennet
interface is a
xvif(4) interface. In the
XenStore, xvif
and xennet
are identified by “vif” (virtual interface) entries.
Conceptually, frontends and backends drivers are similar to two Ethernet cards connected via a crossover cable.
xennet
interfaces can pass VLAN tagged
packets.
xennet
.xennet
and its associated endpoint use copy
mode for communication: packets are copied from one domain's memory to
another.xennet
and its associated endpoint use flip
mode for communication: packets are passed by remapping memory pages
between domains.xennet
driver first appeared in
NetBSD 3.0.
xennet
driver was written by Manuel
Bouyer
<bouyer@NetBSD.org>
and Christian Limpach
<chris@pin.lu>.
November 20, 2015 | NetBSD 9.4 |