net: mvpp2: fix the computation of the RXQs
The patch fixes the computation of RXQs being used by the PPv2 driver, which is set depending on the PPv2 engine version and the queue mode used. There are three cases: - PPv2.1: 1 RXQ per CPU. - PPV2.2 with MVPP2_QDIST_MULTI_MODE: 1 RXQ per CPU. - PPv2.2 with MVPP2_QDIST_SINGLE_MODE: 1 RXQ is shared between the CPUs. The PPv2 engine supports a maximum of 32 queues per port. This patch adds a check so that we do not overstep this maximum. It appeared the calculation was broken for PPv2.1 engines since f8c6ba84, as PPv2.1 ports ended up with a single RXQ while they needed 4. This patch fixes it. Fixes: f8c6ba84 ("net: mvpp2: use only one rx queue per port per CPU") Signed-off-by:Antoine Tenart <antoine.tenart@bootlin.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
parent
8b318f30
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