Subject	tun/tap & vhost-net: apply qdisc backpressure on full ptr_ring to reduce TX drops
Author	simon.schippers@tu-dortmund.de
Date	2026-07-30 21:36:35 +0000 UTC
Version	Version 7 Version 8 Version 9 Version 10 Version 11 Version 12 Version 13
Cc	andrew@lunn.ch brett@librecast.net corbet@lwn.net davem@davemloft.net edumazet@google.com eperezma@redhat.com horms@kernel.org jasowang@redhat.com jasowangio@gmail.com jon@nutanix.com kuba@kernel.org kvm@vger.kernel.org leiyang@redhat.com linux-doc@vger.kernel.org linux-kernel@vger.kernel.org mst@redhat.com netdev@vger.kernel.org pabeni@redhat.com simon.schippers@tu-dortmund.de skhan@linuxfoundation.org stephen@networkplumber.org tim.gebauer@tu-dortmund.de virtualization@lists.linux.dev willemdebruijn.kernel@gmail.com

Patches (5)

Name	Content [All]
[PATCH net-next v13 1/5] tun/tap: add IFF_BACKPRESSURE flag	[Body]
[PATCH net-next v13 2/5] tun/tap: add ptr_ring consume helper with netdev queue wakeup	[Body]
[PATCH net-next v13 3/5] vhost-net: wake queue of tun/tap after ptr_ring consume	[Body]
[PATCH net-next v13 4/5] ptr_ring: move free-space check into separate helper	[Body]
[PATCH net-next v13 5/5] tun/tap & vhost-net: stop tail-drop when IFF_BACKPRESSURE is set	[Body]

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