Re: [PATCH net-next v14 0/5] tun/tap & vhost-net: apply qdisc backpressure on full ptr_ring to reduce TX drops

[patchwork-bot+netdevbpf]

Hello:

This series was applied to netdev/net-next.git (main)
by Jakub Kicinski <kuba@xxxxxxxxxx>:

On Mon,  3 Aug 2026 20:36:36 +0200 you wrote:
> This patch series deals with tun/tap & vhost-net which drop incoming
> SKBs whenever their internal ptr_ring buffer is full. Instead, with this
> patch series, the associated netdev queue is stopped, but only when the
> new IFF_BACKPRESSURE flag is set and a qdisc is attached. Without the
> flag, or if no qdisc is present, the existing behavior is preserved. The
> XDP transmit path is not affected. This patch series touches tun/tap and
> vhost-net, as they share common logic and must be updated together.
> Modifying only one of them would break the other.
> 
> [...]

Here is the summary with links:
  - [net-next,v14,1/5] tun/tap: add IFF_BACKPRESSURE flag
    https://git.kernel.org/netdev/net-next/c/485e38995cc3
  - [net-next,v14,2/5] tun/tap: add ptr_ring consume helper with netdev queue wakeup
    https://git.kernel.org/netdev/net-next/c/9b990ae358b3
  - [net-next,v14,3/5] vhost-net: wake queue of tun/tap after ptr_ring consume
    https://git.kernel.org/netdev/net-next/c/f65c1fb427aa
  - [net-next,v14,4/5] ptr_ring: move free-space check into separate helper
    https://git.kernel.org/netdev/net-next/c/43be21ec2efd
  - [net-next,v14,5/5] tun/tap & vhost-net: stop tail-drop when IFF_BACKPRESSURE is set
    https://git.kernel.org/netdev/net-next/c/d00c7369ef24

You are awesome, thank you!
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