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Subject[net-next RFC 0/8] multiqueue API support for macvtap
Date
Hi all:

This series implements a fully tuntap compatiable API which could be used by
userspace to manage multi macvtap queues. The main parts is to add TUNSETQUEUE
ioctl support for macvtap.

Patch 1 - 4 was some tuntap compatibility and misc cleanups.
Patch 5 removes the linear search in macvtap by reshuffling the macvtaps array
each time a queue is removed. After this, we could store both enabled and
disabled queues in the same array without introducing extra data structure.
Patch 6 let TUNSETIFF can create multiqueue device, nothing but some check were
added.
Patch 7 implement TUNSETQUEUE ioctl
Patch 8 reports IFF_MULTI_QUEUE to userspace to notify the userspace that the
multiqueue API is completed.

Flow caches implememtation were missed in this version, since I am doing rework
on the tuntap flow caches. Have some some stress test with both netperf and
pktgen.

Please review, thanks.

Jason Wang (8):
macvlan: switch to use IS_ENABLED()
macvtap: return -EBADFD when TUNGETIFF fails
macvtap: introduce macvtap_get_vlan()
macvlan: reduce the max number of taps to 8
macvtap: eliminate linear search
macvtap: allow TUNSETIFF to create multiqueue device
macvtap: add TUNSETQUEUE ioctl
macvtap: enable multiqueue flag

drivers/net/macvtap.c | 265 ++++++++++++++++++++++++++++++-------------
include/linux/if_macvlan.h | 11 ++-
2 files changed, 194 insertions(+), 82 deletions(-)



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