[PATCH net v3 1/2] net: airoha: handle RX_NO_CPU_DSCP interrupt, not just RX_DONE

patchwork-bot+netdevbpf at kernel.org patchwork-bot+netdevbpf at kernel.org
Thu Sep 3 17:50:15 PDT 2026


Hello:

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

On Tue,  1 Sep 2026 19:32:53 +0100 you wrote:
> airoha_qdma_hw_init() unmasks the per-ring NO_CPU_DSCP interrupt, which
> fires when an RX ring runs out of free CPU descriptors, but
> airoha_irq_handler() only extracts the RX_DONE bits from the same status
> word. The NO_CPU_DSCP bits are acknowledged and dropped.
> 
> Once a ring is drained to zero posted descriptors no further RX_DONE can
> fire for it - nothing is left for hw to receive into - so NAPI is never
> rescheduled, airoha_qdma_fill_rx_queue() is never called again, and the
> ring stays dead until the interface is reconfigured.
> 
> [...]

Here is the summary with links:
  - [net,v3,1/2] net: airoha: handle RX_NO_CPU_DSCP interrupt, not just RX_DONE
    (no matching commit)
  - [net,v3,2/2] net: airoha: grow the small RX rings
    https://git.kernel.org/netdev/net-next/c/e84b89f17a12

You are awesome, thank you!
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