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Subject: Re: [virtio-dev] Re: [PATCH v11] virtio-net: support inner header hash
å 2023/3/23 äå11:13, Parav Pandit åé:
From: Michael S. Tsirkin <mst@redhat.com> Sent: Wednesday, March 22, 2023 12:42 PMYes. But my point is this. Some flows can be IPv4 others IPv6. Do you see a way to have a key that will result in a symmetrical hash for both IPv4 and IPv6? Can you give an example please?Heng, Is that the requirement to have two completely different flows (ipv, ipv6) to steer to a single RQ?
Michael should be talking about whether there is a symmetric key that can serve both IPv4 and IPv6, so that they can respectively achieve the purpose of symmetric hashing. I am not an expert in hashing, but this article [1] deduces a symmetric hash key, and I think it should be possible to deduce a specific key to meet this requirement.
Or we should support XOR hashing. Thanks.
The requirement, what I understood, is between two directions for a flow to result in a single hash value.
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