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checksum.h 1.1 kB
net.h 6.8 kB
queue.h 2.2 kB
slirp.h 1.7 kB
tap.h 2.6 kB

Latest revisions

# Date Author Comment
f6b26cf2 02/27/2013 05:10 pm Jason Wang

net: reduce the unnecessary memory allocation of multiqueue

Edivaldo reports a problem that the array of NetClientState in NICState is too
large - MAX_QUEUE_NUM(1024) which will wastes memory even if multiqueue is not
used.

Instead of static arrays, solving this issue by allocating the queues on demand...
16dbaf90 02/01/2013 07:03 pm Jason Wang

tap: support enabling or disabling a queue

This patch introduce a new bit - enabled in TAPState which tracks whether a
specific queue/fd is enabled. The tap/fd is enabled during initialization and
could be enabled/disabled by tap_enalbe() and tap_disable() which calls platform...
e5dc0b40 02/01/2013 07:03 pm Jason Wang

tap: introduce a helper to get the name of an interface

This patch introduces a helper tap_get_ifname() to get the device name of tap
device. This is needed when ifname is unspecified in the command line and qemu
were asked to create tap device by itself. In this situation, the name were...
264986e2 02/01/2013 07:03 pm Jason Wang

tap: multiqueue support

Recently, linux support multiqueue tap which could let userspace call TUNSETIFF
for a signle device many times to create multiple file descriptors as
independent queues. User could also enable/disabe a specific queue through
TUNSETQUEUE....
948ecf21 02/01/2013 07:03 pm Jason Wang

net: intorduce qemu_del_nic()

To support multiqueue nic, this patch separate the nic destructor from
qemu_del_net_client() to a new helper qemu_del_nic() since the mapping bettween
NiCState and NetClientState were not 1:1 in multiqueue. The following patches...
6c51ae73 02/01/2013 07:03 pm Jason Wang

net: introduce qemu_find_net_clients_except()

In multiqueue, all NetClientState that belongs to the same netdev or nic has the
same id. So this patches introduces an helper qemu_find_net_clients_except()
which finds all NetClientState with the same id. This will be used by multiqueue...
f7860455 02/01/2013 07:03 pm Jason Wang

net: introduce NetClientState destructor

To allow allocating an array of NetClientState and free it once, this patch
introduces destructor of NetClientState. Which could do type specific free,
which could be used by multiqueue to free the array once.

Signed-off-by: Jason Wang <>...
1ceef9f2 02/01/2013 07:03 pm Jason Wang

net: multiqueue support

This patch adds basic multiqueue support for qemu. The idea is simple, an array
of NetClientStates were introduced in NICState, parse_netdev() were extended to
find and match all NetClientStates belongs to the backend and place their...
cc1f0f45 02/01/2013 07:03 pm Jason Wang

net: introduce qemu_get_nic()

To support multiqueue, this patch introduces a helper qemu_get_nic() to get
NICState from a NetClientState. The following patches would refactor this helper
to support multiqueue.

Signed-off-by: Jason Wang <>...
b356f76d 02/01/2013 07:02 pm Jason Wang

net: introduce qemu_get_queue()

To support multiqueue, the patch introduce a helper qemu_get_queue()
which is used to get the NetClientState of a device. The following patches would
refactor this helper to support multiqueue.

Signed-off-by: Jason Wang <>...

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