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Commit 69a19ee6 authored by Ben Hutchings's avatar Ben Hutchings
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net: RPS: Make hardware-accelerated RFS conditional on NETIF_F_NTUPLE 



For testing and debugging purposes it is useful to be able to disable
hardware acceleration of RFS without disabling RFS altogether.  Since
this is a similar feature to 'n-tuple' flow steering through the
ethtool API, test the same feature flag that controls that.

Signed-off-by: default avatarBen Hutchings <bhutchings@solarflare.com>
parent 94b274bf

net/core/dev.c

+2 −1
Original line number Diff line number Diff line
@@ -2607,7 +2607,8 @@ set_rps_cpu(struct net_device *dev, struct sk_buff *skb, 
		int rc;



		/* Should we steer this flow to a different hardware queue? */

		if (!skb_rx_queue_recorded(skb) || !dev->rx_cpu_rmap)

		if (!skb_rx_queue_recorded(skb) || !dev->rx_cpu_rmap ||

		    !(dev->features & NETIF_F_NTUPLE))

			goto out;

		rxq_index = cpu_rmap_lookup_index(dev->rx_cpu_rmap, next_cpu);

		if (rxq_index == skb_get_rx_queue(skb))