Hello:
This patch was applied to netdev/net.git (main)
by Jakub Kicinski <[email protected]>:
On Tue, 1 Sep 2026 07:17:58 -0500 you wrote:
> The RX completion queue is sized to hold exactly one CQE per posted RX WQE.
> MANA_FENCE_RQ makes hardware post an additional CQE_RX_OBJECT_FENCE after
> the packet CQEs. The current sizing reserves no extra slot for it and in
> rare cases, CQ has no guaranteed slot for the fence CQE when it is full of
> packet CQEs. This can lead to dropping the fence completion while the
> driver waits holding RTNL lock throughout the timeout duration.
> Reserve one extra CQE slot for CQE_RX_OBJECT_FENCE. mana_gd_alloc_memory()
> requires queue_size to be a power-of-two and at least MANA_PAGE_SIZE;
> the reservation pushes cq_size past a power-of-two, so round up the CQ size
> in mana_create_rxq().
>
> [...]
Here is the summary with links:
- net: mana: Reserve extra CQ slot for the fence completion CQE
https://git.kernel.org/netdev/net/c/80dd7e754b3a
You are awesome, thank you!
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