Is it possible to fetch RSS hash value in the e1000e driver when using 82574 adapter?

[idata]

Hi,I want to fetch RSS value to use it for RPS functionality,The 82574L provides two hardware receive queues and suppor RSS,how to enable this feature?

[Mark_H_Intel]

I checked with our developers for an answer. This is what I learned:

The RSS hash is available for software RPS in our out-of-tree driver as of version 1.9.5 and is in the in-kernel driver for the 3.4 kernel. However, the driver does not enable the second receive queue (MQ).

Mark H

[idata]

Hi,Mark H

RSS hash value is non-commutative when using 82574L,both directions of the tcp connection produce different hash values,i.e. SourceAddress, DestinationAddress, SourcePort, DestinationPort and DestinationAddress,SourceAddress,DestinationPort,SourcePort gives different result,skb->rxhash using by RPS,packet will be processed by different core,how to solve the problem?