Re: [PATCH net-next 08/10] net/mlx5e: TC, offload RX queue mapping in NIC flows

[sashiko-bot@kernel.org]

> skbedit queue_mapping steers a flow to one RX queue. ice, hns3 and
> octeontx2 already offload it. Add it to mlx5e NIC flows. The rule points
> to the direct TIR of the channel like ethtool steering rules.
> 
> The direct TIR takes over the destination of the rule. The action must
> come last and cannot follow goto or mirred. A goto would also unbalance
> the reference count of its chain table.
> 
> Reducing the channel count below the queue of a rule drops its traffic
> until the channel returns. The direct RQT of an inactive channel points to
> the drop RQ. ethtool refuses such a change for its own rules but nothing
> tracks the queues of TC rules. A channel change racing with the range
> check of a new rule has the same result. Direct TIRs exist up to the
> maximum channel count. The rule always points to a valid one.
> 
> Tested on ConnectX-7 with firmware 28.48.1000.
> 
> Signed-off-by: Alexandre Cassen <acassen@corp.free.fr>

Sashiko has reviewed this patch and found no issues.

-- 
Sashiko AI review · https://sashiko.dev/#/patchset/20261109131039.959438-1-acassen@corp.free.fr?part=8